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| -rw-r--r-- | Documentation/scsi/00-INDEX | 2 | ||||
| -rw-r--r-- | Documentation/scsi/aic7xxx_old.txt | 511 | ||||
| -rw-r--r-- | MAINTAINERS | 1 | ||||
| -rw-r--r-- | drivers/scsi/Kconfig | 41 | ||||
| -rw-r--r-- | drivers/scsi/Makefile | 1 | ||||
| -rw-r--r-- | drivers/scsi/aic7xxx_old.c | 11149 | ||||
| -rw-r--r-- | drivers/scsi/aic7xxx_old/aic7xxx.h | 28 | ||||
| -rw-r--r-- | drivers/scsi/aic7xxx_old/aic7xxx.reg | 1401 | ||||
| -rw-r--r-- | drivers/scsi/aic7xxx_old/aic7xxx.seq | 1539 | ||||
| -rw-r--r-- | drivers/scsi/aic7xxx_old/aic7xxx_proc.c | 270 | ||||
| -rw-r--r-- | drivers/scsi/aic7xxx_old/aic7xxx_reg.h | 629 | ||||
| -rw-r--r-- | drivers/scsi/aic7xxx_old/aic7xxx_seq.c | 817 | ||||
| -rw-r--r-- | drivers/scsi/aic7xxx_old/scsi_message.h | 49 | ||||
| -rw-r--r-- | drivers/scsi/aic7xxx_old/sequencer.h | 135 |
14 files changed, 0 insertions, 16573 deletions
diff --git a/Documentation/scsi/00-INDEX b/Documentation/scsi/00-INDEX index 9b0787f..2044be5 100644 --- a/Documentation/scsi/00-INDEX +++ b/Documentation/scsi/00-INDEX @@ -42,8 +42,6 @@ aic79xx.txt - Adaptec Ultra320 SCSI host adapters aic7xxx.txt - info on driver for Adaptec controllers -aic7xxx_old.txt - - info on driver for Adaptec controllers, old generation arcmsr_spec.txt - ARECA FIRMWARE SPEC (for IOP331 adapter) dc395x.txt diff --git a/Documentation/scsi/aic7xxx_old.txt b/Documentation/scsi/aic7xxx_old.txt deleted file mode 100644 index ecfc474..0000000 --- a/Documentation/scsi/aic7xxx_old.txt +++ /dev/null @@ -1,511 +0,0 @@ - AIC7xxx Driver for Linux - -Introduction ----------------------------- -The AIC7xxx SCSI driver adds support for Adaptec (http://www.adaptec.com) -SCSI controllers and chipsets. Major portions of the driver and driver -development are shared between both Linux and FreeBSD. Support for the -AIC-7xxx chipsets have been in the default Linux kernel since approximately -linux-1.1.x and fairly stable since linux-1.2.x, and are also in FreeBSD -2.1.0 or later. - - Supported cards/chipsets - ---------------------------- - Adaptec Cards - ---------------------------- - AHA-274x - AHA-274xT - AHA-2842 - AHA-2910B - AHA-2920C - AHA-2930 - AHA-2930U - AHA-2930CU - AHA-2930U2 - AHA-2940 - AHA-2940W - AHA-2940U - AHA-2940UW - AHA-2940UW-PRO - AHA-2940AU - AHA-2940U2W - AHA-2940U2 - AHA-2940U2B - AHA-2940U2BOEM - AHA-2944D - AHA-2944WD - AHA-2944UD - AHA-2944UWD - AHA-2950U2 - AHA-2950U2W - AHA-2950U2B - AHA-29160M - AHA-3940 - AHA-3940U - AHA-3940W - AHA-3940UW - AHA-3940AUW - AHA-3940U2W - AHA-3950U2B - AHA-3950U2D - AHA-3960D - AHA-39160M - AHA-3985 - AHA-3985U - AHA-3985W - AHA-3985UW - - Motherboard Chipsets - ---------------------------- - AIC-777x - AIC-785x - AIC-786x - AIC-787x - AIC-788x - AIC-789x - AIC-3860 - - Bus Types - ---------------------------- - W - Wide SCSI, SCSI-3, 16bit bus, 68pin connector, will also support - SCSI-1/SCSI-2 50pin devices, transfer rates up to 20MB/s. - U - Ultra SCSI, transfer rates up to 40MB/s. - U2- Ultra 2 SCSI, transfer rates up to 80MB/s. - D - Differential SCSI. - T - Twin Channel SCSI. Up to 14 SCSI devices. - - AHA-274x - EISA SCSI controller - AHA-284x - VLB SCSI controller - AHA-29xx - PCI SCSI controller - AHA-394x - PCI controllers with two separate SCSI controllers on-board. - AHA-398x - PCI RAID controllers with three separate SCSI controllers - on-board. - - Not Supported Devices - ------------------------------ - Adaptec Cards - ---------------------------- - AHA-2920 (Only the cards that use the Future Domain chipset are not - supported, any 2920 cards based on Adaptec AIC chipsets, - such as the 2920C, are supported) - AAA-13x Raid Adapters - AAA-113x Raid Port Card - - Motherboard Chipsets - ---------------------------- - AIC-7810 - - Bus Types - ---------------------------- - R - Raid Port busses are not supported. - - The hardware RAID devices sold by Adaptec are *NOT* supported by this - driver (and will people please stop emailing me about them, they are - a totally separate beast from the bare SCSI controllers and this driver - cannot be retrofitted in any sane manner to support the hardware RAID - features on those cards - Doug Ledford). - - - People - ------------------------------ - Justin T Gibbs gibbs@plutotech.com - (BSD Driver Author) - Dan Eischen deischen@iworks.InterWorks.org - (Original Linux Driver Co-maintainer) - Dean Gehnert deang@teleport.com - (Original Linux FTP/patch maintainer) - Jess Johnson jester@frenzy.com - (AIC7xxx FAQ author) - Doug Ledford dledford@redhat.com - (Current Linux aic7xxx-5.x.x Driver/Patch/FTP maintainer) - - Special thanks go to John Aycock (aycock@cpsc.ucalgary.ca), the original - author of the driver. John has since retired from the project. Thanks - again for all his work! - - Mailing list - ------------------------------ - There is a mailing list available for users who want to track development - and converse with other users and developers. This list is for both - FreeBSD and Linux support of the AIC7xxx chipsets. - - To subscribe to the AIC7xxx mailing list send mail to the list server, - with "subscribe AIC7xxx" in the body (no Subject: required): - To: majordomo@FreeBSD.ORG - --- - subscribe AIC7xxx - - To unsubscribe from the list, send mail to the list server with: - To: majordomo@FreeBSD.ORG - --- - unsubscribe AIC7xxx - - Send regular messages and replies to: AIC7xxx@FreeBSD.ORG - - Boot Command line options - ------------------------------ - "aic7xxx=no_reset" - Eliminate the SCSI bus reset during startup. - Some SCSI devices need the initial reset that this option disables - in order to work. If you have problems at bootup, please make sure - you aren't using this option. - - "aic7xxx=reverse_scan" - Certain PCI motherboards scan for devices at - bootup by scanning from the highest numbered PCI device to the - lowest numbered PCI device, others do just the opposite and scan - from lowest to highest numbered PCI device. There is no reliable - way to autodetect this ordering. So, we default to the most common - order, which is lowest to highest. Then, in case your motherboard - scans from highest to lowest, we have this option. If your BIOS - finds the drives on controller A before controller B but the linux - kernel finds your drives on controller B before A, then you should - use this option. - - "aic7xxx=extended" - Force the driver to detect extended drive translation - on your controller. This helps those people who have cards without - a SEEPROM make sure that linux and all other operating systems think - the same way about your hard drives. - - "aic7xxx=scbram" - Some cards have external SCB RAM that can be used to - give the card more hardware SCB slots. This allows the driver to use - that SCB RAM. Without this option, the driver won't touch the SCB - RAM because it is known to cause problems on a few cards out there - (such as 3985 class cards). - - "aic7xxx=irq_trigger:x" - Replace x with either 0 or 1 to force the kernel - to use the correct IRQ type for your card. This only applies to EISA - based controllers. On these controllers, 0 is for Edge triggered - interrupts, and 1 is for Level triggered interrupts. If you aren't - sure or don't know which IRQ trigger type your EISA card uses, then - let the kernel autodetect the trigger type. - - "aic7xxx=verbose" - This option can be used in one of two ways. If you - simply specify aic7xxx=verbose, then the kernel will automatically - pick the default set of verbose messages for you to see. - Alternatively, you can specify the command as - "aic7xxx=verbose:0xXXXX" where the X entries are replaced with - hexadecimal digits. This option is a bit field type option. For - a full listing of the available options, search for the - #define VERBOSE_xxxxxx lines in the aic7xxx.c file. If you want - verbose messages, then it is recommended that you simply use the - aic7xxx=verbose variant of this command. - - "aic7xxx=pci_parity:x" - This option controls whether or not the driver - enables PCI parity error checking on the PCI bus. By default, this - checking is disabled. To enable the checks, simply specify pci_parity - with no value afterwords. To reverse the parity from even to odd, - supply any number other than 0 or 255. In short: - pci_parity - Even parity checking (even is the normal PCI parity) - pci_parity:x - Where x > 0, Odd parity checking - pci_parity:0 - No check (default) - NOTE: In order to get Even PCI parity checking, you must use the - version of the option that does not include the : and a number at - the end (unless you want to enter exactly 2^32 - 1 as the number). - - "aic7xxx=no_probe" - This option will disable the probing for any VLB - based 2842 controllers and any EISA based controllers. This is - needed on certain newer motherboards where the normal EISA I/O ranges - have been claimed by other PCI devices. Probing on those machines - will often result in the machine crashing or spontaneously rebooting - during startup. Examples of machines that need this are the - Dell PowerEdge 6300 machines. - - "aic7xxx=seltime:2" - This option controls how long the card waits - during a device selection sequence for the device to respond. - The original SCSI spec says that this "should be" 256ms. This - is generally not required with modern devices. However, some - very old SCSI I devices need the full 256ms. Most modern devices - can run fine with only 64ms. The default for this option is - 64ms. If you need to change this option, then use the following - table to set the proper value in the example above: - 0 - 256ms - 1 - 128ms - 2 - 64ms - 3 - 32ms - - "aic7xxx=panic_on_abort" - This option is for debugging and will cause - the driver to panic the linux kernel and freeze the system the first - time the drivers abort or reset routines are called. This is most - helpful when some problem causes infinite reset loops that scroll too - fast to see. By using this option, you can write down what the errors - actually are and send that information to me so it can be fixed. - - "aic7xxx=dump_card" - This option will print out the *entire* set of - configuration registers on the card during the init sequence. This - is a debugging aid used to see exactly what state the card is in - when we finally finish our initialization routines. If you don't - have documentation on the chipsets, this will do you absolutely - no good unless you are simply trying to write all the information - down in order to send it to me. - - "aic7xxx=dump_sequencer" - This is the same as the above options except - that instead of dumping the register contents on the card, this - option dumps the contents of the sequencer program RAM. This gives - the ability to verify that the instructions downloaded to the - card's sequencer are indeed what they are supposed to be. Again, - unless you have documentation to tell you how to interpret these - numbers, then it is totally useless. - - "aic7xxx=override_term:0xffffffff" - This option is used to force the - termination on your SCSI controllers to a particular setting. This - is a bit mask variable that applies for up to 8 aic7xxx SCSI channels. - Each channel gets 4 bits, divided as follows: - bit 3 2 1 0 - | | | Enable/Disable Single Ended Low Byte Termination - | | En/Disable Single Ended High Byte Termination - | En/Disable Low Byte LVD Termination - En/Disable High Byte LVD Termination - - The upper 2 bits that deal with LVD termination only apply to Ultra2 - controllers. Furthermore, due to the current Ultra2 controller - designs, these bits are tied together such that setting either bit - enables both low and high byte LVD termination. It is not possible - to only set high or low byte LVD termination in this manner. This is - an artifact of the BIOS definition on Ultra2 controllers. For other - controllers, the only important bits are the two lowest bits. Setting - the higher bits on non-Ultra2 controllers has no effect. A few - examples of how to use this option: - - Enable low and high byte termination on a non-ultra2 controller that - is the first aic7xxx controller (the correct bits are 0011), - aic7xxx=override_term:0x3 - - Enable all termination on the third aic7xxx controller, high byte - termination on the second aic7xxx controller, and low and high byte - SE termination on the first aic7xxx controller - (bits are 1111 0010 0011), - aic7xxx=override_term:0xf23 - - No attempt has been made to make this option non-cryptic. It really - shouldn't be used except in dire circumstances, and if that happens, - I'm probably going to be telling you what to set this to anyway :) - - "aic7xxx=stpwlev:0xffffffff" - This option is used to control the STPWLEV - bit in the DEVCONFIG PCI register. Currently, this is one of the - very few registers that we have absolutely *no* way of detecting - what the variable should be. It depends entirely on how the chipset - and external terminators were coupled by the card/motherboard maker. - Further, a chip reset (at power up) always sets this bit to 0. If - there is no BIOS to run on the chipset/card (such as with a 2910C - or a motherboard controller with the BIOS totally disabled) then - the variable may not get set properly. Of course, if the proper - setting was 0, then that's what it would be after the reset, but if - the proper setting is actually 1.....you get the picture. Now, since - we can't detect this at all, I've added this option to force the - setting. If you have a BIOS on your controller then you should never - need to use this option. However, if you are having lots of SCSI - reset problems and can't seem to get them knocked out, this may help. - - Here's a test to know for certain if you need this option. Make - a boot floppy that you can use to boot your computer up and that - will detect the aic7xxx controller. Next, power down your computer. - While it's down, unplug all SCSI cables from your Adaptec SCSI - controller. Boot the system back up to the Adaptec EZ-SCSI BIOS - and then make sure that termination is enabled on your adapter (if - you have an Adaptec BIOS of course). Next, boot up the floppy you - made and wait for it to detect the aic7xxx controller. If the kernel - finds the controller fine, says scsi : x hosts and then tries to - detect your devices like normal, up to the point where it fails to - mount your root file system and panics, then you're fine. If, on - the other hand, the system goes into an infinite reset loop, then - you need to use this option and/or the previous option to force the - proper termination settings on your controller. If this happens, - then you next need to figure out what your settings should be. - - To find the correct settings, power your machine back down, connect - back up the SCSI cables, and boot back into your machine like normal. - However, boot with the aic7xxx=verbose:0x39 option. Record the - initial DEVCONFIG values for each of your aic7xxx controllers as - they are listed, and also record what the machine is detecting as - the proper termination on your controllers. NOTE: the order in - which the initial DEVCONFIG values are printed out is not guaranteed - to be the same order as the SCSI controllers are registered. The - above option and this option both work on the order of the SCSI - controllers as they are registered, so make sure you match the right - DEVCONFIG values with the right controllers if you have more than - one aic7xxx controller. - - Once you have the detected termination settings and the initial - DEVCONFIG values for each controller, then figure out what the - termination on each of the controllers *should* be. Hopefully, that - part is correct, but it could possibly be wrong if there is - bogus cable detection logic on your controller or something similar. - If all the controllers have the correct termination settings, then - don't set the aic7xxx=override_term variable at all, leave it alone. - Next, on any controllers that go into an infinite reset loop when - you unplug all the SCSI cables, get the starting DEVCONFIG value. - If the initial DEVCONFIG value is divisible by 2, then the correct - setting for that controller is 0. If it's an odd number, then - the correct setting for that controller is 1. For any other - controllers that didn't have an infinite reset problem, then reverse - the above options. If DEVCONFIG was even, then the correct setting - is 1, if not then the correct setting is 0. - - Now that you know what the correct setting was for each controller, - we need to encode that into the aic7xxx=stpwlev:0x... variable. - This variable is a bit field encoded variable. Bit 0 is for the first - aic7xxx controller, bit 1 for the next, etc. Put all these bits - together and you get a number. For example, if the third aic7xxx - needed a 1, but the second and first both needed a 0, then the bits - would be 100 in binary. This then translates to 0x04. You would - therefore set aic7xxx=stpwlev:0x04. This is fairly standard binary - to hexadecimal conversions here. If you aren't up to speed on the - binary->hex conversion then send an email to the aic7xxx mailing - list and someone can help you out. - - "aic7xxx=tag_info:{{8,8..},{8,8..},..}" - This option is used to disable - or enable Tagged Command Queueing (TCQ) on specific devices. As of - driver version 5.1.11, TCQ is now either on or off by default - according to the setting you choose during the make config process. - In order to en/disable TCQ for certain devices at boot time, a user - may use this boot param. The driver will then parse this message out - and en/disable the specific device entries that are present based upon - the value given. The param line is parsed in the following manner: - - { - first instance indicates the start of this parameter values - second instance is the start of entries for a particular - device entry - } - end the entries for a particular host adapter, or end the entire - set of parameter entries - , - move to next entry. Inside of a set of device entries, this - moves us to the next device on the list. Outside of device - entries, this moves us to the next host adapter - . - Same effect as , but is safe to use with insmod. - x - the number to enter into the array at this position. - 0 = Enable tagged queueing on this device and use the default - queue depth - 1-254 = Enable tagged queueing on this device and use this - number as the queue depth - 255 = Disable tagged queueing on this device. - Note: anything above 32 for an actual queue depth is wasteful - and not recommended. - - A few examples of how this can be used: - - tag_info:{{8,12,,0,,255,4}} - This line will only effect the first aic7xxx card registered. It - will set scsi id 0 to a queue depth of 8, id 1 to 12, leave id 2 - at the default, set id 3 to tagged queueing enabled and use the - default queue depth, id 4 default, id 5 disabled, and id 6 to 4. - Any not specified entries stay at the default value, repeated - commas with no value specified will simply increment to the next id - without changing anything for the missing values. - - tag_info:{,,,{,,,255}} - First, second, and third adapters at default values. Fourth - adapter, id 3 is disabled. Notice that leading commas simply - increment what the first number effects, and there are no need - for trailing commas. When you close out an adapter, or the - entire entry, anything not explicitly set stays at the default - value. - - A final note on this option. The scanner I used for this isn't - perfect or highly robust. If you mess the line up, the worst that - should happen is that the line will get ignored. If you don't - close out the entire entry with the final bracket, then any other - aic7xxx options after this will get ignored. So, in general, be - sure of what you are entering, and after you have it right, just - add it to the lilo.conf file so there won't be any mistakes. As - a means of checking this parser, the entire tag_info array for - each card is now printed out in the /proc/scsi/aic7xxx/x file. You - can use that to verify that your options were parsed correctly. - - Boot command line options may be combined to form the proper set of options - a user might need. For example, the following is valid: - - aic7xxx=verbose,extended,irq_trigger:1 - - The only requirement is that individual options be separated by a comma or - a period on the command line. - - Module Loading command options - ------------------------------ - When loading the aic7xxx driver as a module, the exact same options are - available to the user. However, the syntax to specify the options changes - slightly. For insmod, you need to wrap the aic7xxx= argument in quotes - and replace all ',' with '.'. So, for example, a valid insmod line - would be: - - insmod aic7xxx aic7xxx='verbose.irq_trigger:1.extended' - - This line should result in the *exact* same behaviour as if you typed - it in at the lilo prompt and the driver was compiled into the kernel - instead of being a module. The reason for the single quote is so that - the shell won't try to interpret anything in the line, such as {. - Insmod assumes any options starting with a letter instead of a number - is a character string (which is what we want) and by switching all of - the commas to periods, insmod won't interpret this as more than one - string and write junk into our binary image. I consider it a bug in - the insmod program that even if you wrap your string in quotes (quotes - that pass the shell mind you and that insmod sees) it still treats - a comma inside of those quotes as starting a new variable, resulting - in memory scribbles if you don't switch the commas to periods. - - - Kernel Compile options - ------------------------------ - The various kernel compile time options for this driver are now fairly - well documented in the file drivers/scsi/Kconfig. In order to - see this documentation, you need to use one of the advanced configuration - programs (menuconfig and xconfig). If you are using the "make menuconfig" - method of configuring your kernel, then you would simply highlight the - option in question and hit the ? key. If you are using the "make xconfig" - method of configuring your kernel, then simply click on the help button - next to the option you have questions about. The help information from - the Configure.help file will then get automatically displayed. - - /proc support - ------------------------------ - The /proc support for the AIC7xxx can be found in the /proc/scsi/aic7xxx/ - directory. That directory contains a file for each SCSI controller in - the system. Each file presents the current configuration and transfer - statistics (enabled with #define in aic7xxx.c) for each controller. - - Thanks to Michael Neuffer for his upper-level SCSI help, and - Matthew Jacob for statistics support. - - Debugging the driver - ------------------------------ - Should you have problems with this driver, and would like some help in - getting them solved, there are a couple debugging items built into - the driver to facilitate getting the needed information from the system. - In general, I need a complete description of the problem, with as many - logs as possible concerning what happens. To help with this, there is - a command option aic7xxx=panic_on_abort. This option, when set, forces - the driver to panic the kernel on the first SCSI abort issued by the - mid level SCSI code. If your system is going to reset loops and you - can't read the screen, then this is what you need. Not only will it - stop the system, but it also prints out a large amount of state - information in the process. Second, if you specify the option - "aic7xxx=verbose:0x1ffff", the system will print out *SOOOO* much - information as it runs that you won't be able to see anything. - However, this can actually be very useful if your machine simply - locks up when trying to boot, since it will pin-point what was last - happening (in regards to the aic7xxx driver) immediately prior to - the lockup. This is really only useful if your machine simply can - not boot up successfully. If you can get your machine to run, then - this will produce far too much information. - - FTP sites - ------------------------------ - ftp://ftp.redhat.com/pub/aic/ - - Out of date. I used to keep stuff here, but too many people - complained about having a hard time getting into Red Hat's ftp - server. So use the web site below instead. - ftp://ftp.pcnet.com/users/eischen/Linux/ - - Dan Eischen's driver distribution area - ftp://ekf2.vsb.cz/pub/linux/kernel/aic7xxx/ftp.teleport.com/ - - European Linux mirror of Teleport site - - Web sites - ------------------------------ - http://people.redhat.com/dledford/ - - My web site, also the primary aic7xxx site with several related - pages. - -Dean W. Gehnert -deang@teleport.com - -$Revision: 3.0 $ - -Modified by Doug Ledford 1998-2000 - diff --git a/MAINTAINERS b/MAINTAINERS index ac3284f..82492de 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -484,7 +484,6 @@ M: Hannes Reinecke <hare@suse.de> L: linux-scsi@vger.kernel.org S: Maintained F: drivers/scsi/aic7xxx/ -F: drivers/scsi/aic7xxx_old/ AIMSLAB FM RADIO RECEIVER DRIVER M: Hans Verkuil <hverkuil@xs4all.nl> diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig index fe25677..1f02003 100644 --- a/drivers/scsi/Kconfig +++ b/drivers/scsi/Kconfig @@ -499,47 +499,6 @@ config SCSI_AACRAID source "drivers/scsi/aic7xxx/Kconfig.aic7xxx" - -config SCSI_AIC7XXX_OLD - tristate "Adaptec AIC7xxx support (old driver)" - depends on (ISA || EISA || PCI ) && SCSI - help - WARNING This driver is an older aic7xxx driver and is no longer - under active development. Adaptec, Inc. is writing a new driver to - take the place of this one, and it is recommended that whenever - possible, people should use the new Adaptec written driver instead - of this one. This driver will eventually be phased out entirely. - - This is support for the various aic7xxx based Adaptec SCSI - controllers. These include the 274x EISA cards; 284x VLB cards; - 2902, 2910, 293x, 294x, 394x, 3985 and several other PCI and - motherboard based SCSI controllers from Adaptec. It does not support - the AAA-13x RAID controllers from Adaptec, nor will it likely ever - support them. It does not support the 2920 cards from Adaptec that - use the Future Domain SCSI controller chip. For those cards, you - need the "Future Domain 16xx SCSI support" driver. - - In general, if the controller is based on an Adaptec SCSI controller - chip from the aic777x series or the aic78xx series, this driver - should work. The only exception is the 7810 which is specifically - not supported (that's the RAID controller chip on the AAA-13x - cards). - - Note that the AHA2920 SCSI host adapter is *not* supported by this - driver; choose "Future Domain 16xx SCSI support" instead if you have - one of those. - - Information on the configuration options for this controller can be - found by checking the help file for each of the available - configuration options. You should read - <file:Documentation/scsi/aic7xxx_old.txt> at a minimum before - contacting the maintainer with any questions. The SCSI-HOWTO, - available from <http://www.tldp.org/docs.html#howto>, can also - be of great help. - - To compile this driver as a module, choose M here: the - module will be called aic7xxx_old. - source "drivers/scsi/aic7xxx/Kconfig.aic79xx" source "drivers/scsi/aic94xx/Kconfig" source "drivers/scsi/mvsas/Kconfig" diff --git a/drivers/scsi/Makefile b/drivers/scsi/Makefile index 149bb6b..e172d4f 100644 --- a/drivers/scsi/Makefile +++ b/drivers/scsi/Makefile @@ -70,7 +70,6 @@ obj-$(CONFIG_SCSI_AHA1740) += aha1740.o obj-$(CONFIG_SCSI_AIC7XXX) += aic7xxx/ obj-$(CONFIG_SCSI_AIC79XX) += aic7xxx/ obj-$(CONFIG_SCSI_AACRAID) += aacraid/ -obj-$(CONFIG_SCSI_AIC7XXX_OLD) += aic7xxx_old.o obj-$(CONFIG_SCSI_AIC94XX) += aic94xx/ obj-$(CONFIG_SCSI_PM8001) += pm8001/ obj-$(CONFIG_SCSI_ISCI) += isci/ diff --git a/drivers/scsi/aic7xxx_old.c b/drivers/scsi/aic7xxx_old.c deleted file mode 100644 index 33ec9c6..0000000 --- a/drivers/scsi/aic7xxx_old.c +++ /dev/null @@ -1,11149 +0,0 @@ -/*+M************************************************************************* - * Adaptec AIC7xxx device driver for Linux. - * - * Copyright (c) 1994 John Aycock - * The University of Calgary Department of Computer Science. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2, or (at your option) - * any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; see the file COPYING. If not, write to - * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. - * - * Sources include the Adaptec 1740 driver (aha1740.c), the Ultrastor 24F - * driver (ultrastor.c), various Linux kernel source, the Adaptec EISA - * config file (!adp7771.cfg), the Adaptec AHA-2740A Series User's Guide, - * the Linux Kernel Hacker's Guide, Writing a SCSI Device Driver for Linux, - * the Adaptec 1542 driver (aha1542.c), the Adaptec EISA overlay file - * (adp7770.ovl), the Adaptec AHA-2740 Series Technical Reference Manual, - * the Adaptec AIC-7770 Data Book, the ANSI SCSI specification, the - * ANSI SCSI-2 specification (draft 10c), ... - * - * -------------------------------------------------------------------------- - * - * Modifications by Daniel M. Eischen (deischen@iworks.InterWorks.org): - * - * Substantially modified to include support for wide and twin bus - * adapters, DMAing of SCBs, tagged queueing, IRQ sharing, bug fixes, - * SCB paging, and other rework of the code. - * - * Parts of this driver were also based on the FreeBSD driver by - * Justin T. Gibbs. His copyright follows: - * - * -------------------------------------------------------------------------- - * Copyright (c) 1994-1997 Justin Gibbs. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification, immediately at the beginning of the file. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * Where this Software is combined with software released under the terms of - * the GNU General Public License ("GPL") and the terms of the GPL would require the - * combined work to also be released under the terms of the GPL, the terms - * and conditions of this License will apply in addition to those of the - * GPL with the exception of any terms or conditions of this License that - * conflict with, or are expressly prohibited by, the GPL. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR - * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $Id: aic7xxx.c,v 1.119 1997/06/27 19:39:18 gibbs Exp $ - *--------------------------------------------------------------------------- - * - * Thanks also go to (in alphabetical order) the following: - * - * Rory Bolt - Sequencer bug fixes - * Jay Estabrook - Initial DEC Alpha support - * Doug Ledford - Much needed abort/reset bug fixes - * Kai Makisara - DMAing of SCBs - * - * A Boot time option was also added for not resetting the scsi bus. - * - * Form: aic7xxx=extended - * aic7xxx=no_reset - * aic7xxx=ultra - * aic7xxx=irq_trigger:[0,1] # 0 edge, 1 level - * aic7xxx=verbose - * - * Daniel M. Eischen, deischen@iworks.InterWorks.org, 1/23/97 - * - * $Id: aic7xxx.c,v 4.1 1997/06/12 08:23:42 deang Exp $ - *-M*************************************************************************/ - -/*+M************************************************************************** - * - * Further driver modifications made by Doug Ledford <dledford@redhat.com> - * - * Copyright (c) 1997-1999 Doug Ledford - * - * These changes are released under the same licensing terms as the FreeBSD - * driver written by Justin Gibbs. Please see his Copyright notice above - * for the exact terms and conditions covering my changes as well as the - * warranty statement. - * - * Modifications made to the aic7xxx.c,v 4.1 driver from Dan Eischen include - * but are not limited to: - * - * 1: Import of the latest FreeBSD sequencer code for this driver - * 2: Modification of kernel code to accommodate different sequencer semantics - * 3: Extensive changes throughout kernel portion of driver to improve - * abort/reset processing and error hanndling - * 4: Other work contributed by various people on the Internet - * 5: Changes to printk information and verbosity selection code - * 6: General reliability related changes, especially in IRQ management - * 7: Modifications to the default probe/attach order for supported cards - * 8: SMP friendliness has been improved - * - * Overall, this driver represents a significant departure from the official - * aic7xxx driver released by Dan Eischen in two ways. First, in the code - * itself. A diff between the two version of the driver is now a several - * thousand line diff. Second, in approach to solving the same problem. The - * problem is importing the FreeBSD aic7xxx driver code to linux can be a - * difficult and time consuming process, that also can be error prone. Dan - * Eischen's official driver uses the approach that the linux and FreeBSD - * drivers should be as identical as possible. To that end, his next version - * of this driver will be using a mid-layer code library that he is developing - * to moderate communications between the linux mid-level SCSI code and the - * low level FreeBSD driver. He intends to be able to essentially drop the - * FreeBSD driver into the linux kernel with only a few minor tweaks to some - * include files and the like and get things working, making for fast easy - * imports of the FreeBSD code into linux. - * - * I disagree with Dan's approach. Not that I don't think his way of doing - * things would be nice, easy to maintain, and create a more uniform driver - * between FreeBSD and Linux. I have no objection to those issues. My - * disagreement is on the needed functionality. There simply are certain - * things that are done differently in FreeBSD than linux that will cause - * problems for this driver regardless of any middle ware Dan implements. - * The biggest example of this at the moment is interrupt semantics. Linux - * doesn't provide the same protection techniques as FreeBSD does, nor can - * they be easily implemented in any middle ware code since they would truly - * belong in the kernel proper and would effect all drivers. For the time - * being, I see issues such as these as major stumbling blocks to the - * reliability of code based upon such middle ware. Therefore, I choose to - * use a different approach to importing the FreeBSD code that doesn't - * involve any middle ware type code. My approach is to import the sequencer - * code from FreeBSD wholesale. Then, to only make changes in the kernel - * portion of the driver as they are needed for the new sequencer semantics. - * In this way, the portion of the driver that speaks to the rest of the - * linux kernel is fairly static and can be changed/modified to solve - * any problems one might encounter without concern for the FreeBSD driver. - * - * Note: If time and experience should prove me wrong that the middle ware - * code Dan writes is reliable in its operation, then I'll retract my above - * statements. But, for those that don't know, I'm from Missouri (in the US) - * and our state motto is "The Show-Me State". Well, before I will put - * faith into it, you'll have to show me that it works :) - * - *_M*************************************************************************/ - -/* - * The next three defines are user configurable. These should be the only - * defines a user might need to get in here and change. There are other - * defines buried deeper in the code, but those really shouldn't need touched - * under normal conditions. - */ - -/* - * AIC7XXX_STRICT_PCI_SETUP - * Should we assume the PCI config options on our controllers are set with - * sane and proper values, or should we be anal about our PCI config - * registers and force them to what we want? The main advantage to - * defining this option is on non-Intel hardware where the BIOS may not - * have been run to set things up, or if you have one of the BIOSless - * Adaptec controllers, such as a 2910, that don't get set up by the - * BIOS. However, keep in mind that we really do set the most important - * items in the driver regardless of this setting, this only controls some - * of the more esoteric PCI options on these cards. In that sense, I - * would default to leaving this off. However, if people wish to try - * things both ways, that would also help me to know if there are some - * machines where it works one way but not another. - * - * -- July 7, 17:09 - * OK...I need this on my machine for testing, so the default is to - * leave it defined. - * - * -- July 7, 18:49 - * I needed it for testing, but it didn't make any difference, so back - * off she goes. - * - * -- July 16, 23:04 - * I turned it back on to try and compensate for the 2.1.x PCI code - * which no longer relies solely on the BIOS and now tries to set - * things itself. - */ - -#define AIC7XXX_STRICT_PCI_SETUP - -/* - * AIC7XXX_VERBOSE_DEBUGGING - * This option enables a lot of extra printk();s in the code, surrounded - * by if (aic7xxx_verbose ...) statements. Executing all of those if - * statements and the extra checks can get to where it actually does have - * an impact on CPU usage and such, as well as code size. Disabling this - * define will keep some of those from becoming part of the code. - * - * NOTE: Currently, this option has no real effect, I will be adding the - * various #ifdef's in the code later when I've decided a section is - * complete and no longer needs debugging. OK...a lot of things are now - * surrounded by this define, so turning this off does have an impact. - */ - -/* - * #define AIC7XXX_VERBOSE_DEBUGGING - */ - -#include <linux/module.h> -#include <stdarg.h> -#include <asm/io.h> -#include <asm/irq.h> -#include <asm/byteorder.h> -#include <linux/string.h> -#include <linux/errno.h> -#include <linux/kernel.h> -#include <linux/ioport.h> -#include <linux/delay.h> -#include <linux/pci.h> -#include <linux/proc_fs.h> -#include <linux/blkdev.h> -#include <linux/init.h> -#include <linux/spinlock.h> -#include <linux/smp.h> -#include <linux/interrupt.h> -#include "scsi.h" -#include <scsi/scsi_host.h> -#include "aic7xxx_old/aic7xxx.h" - -#include "aic7xxx_old/sequencer.h" -#include "aic7xxx_old/scsi_message.h" -#include "aic7xxx_old/aic7xxx_reg.h" -#include <scsi/scsicam.h> - -#include <linux/stat.h> -#include <linux/slab.h> /* for kmalloc() */ - -#define AIC7XXX_C_VERSION "5.2.6" - -#define ALL_TARGETS -1 -#define ALL_CHANNELS -1 -#define ALL_LUNS -1 -#define MAX_TARGETS 16 -#define MAX_LUNS 8 -#ifndef TRUE -# define TRUE 1 -#endif -#ifndef FALSE -# define FALSE 0 -#endif - -#if defined(__powerpc__) || defined(__i386__) || defined(__x86_64__) -# define MMAPIO -#endif - -/* - * You can try raising me for better performance or lowering me if you have - * flaky devices that go off the scsi bus when hit with too many tagged - * commands (like some IBM SCSI-3 LVD drives). - */ -#define AIC7XXX_CMDS_PER_DEVICE 32 - -typedef struct -{ - unsigned char tag_commands[16]; /* Allow for wide/twin adapters. */ -} adapter_tag_info_t; - -/* - * Make a define that will tell the driver not to the default tag depth - * everywhere. - */ -#define DEFAULT_TAG_COMMANDS {0, 0, 0, 0, 0, 0, 0, 0,\ - 0, 0, 0, 0, 0, 0, 0, 0} - -/* - * Modify this as you see fit for your system. By setting tag_commands - * to 0, the driver will use it's own algorithm for determining the - * number of commands to use (see above). When 255, the driver will - * not enable tagged queueing for that particular device. When positive - * (> 0) and (< 255) the values in the array are used for the queue_depth. - * Note that the maximum value for an entry is 254, but you're insane if - * you try to use that many commands on one device. - * - * In this example, the first line will disable tagged queueing for all - * the devices on the first probed aic7xxx adapter. - * - * The second line enables tagged queueing with 4 commands/LUN for IDs - * (1, 2-11, 13-15), disables tagged queueing for ID 12, and tells the - * driver to use its own algorithm for ID 1. - * - * The third line is the same as the first line. - * - * The fourth line disables tagged queueing for devices 0 and 3. It - * enables tagged queueing for the other IDs, with 16 commands/LUN - * for IDs 1 and 4, 127 commands/LUN for ID 8, and 4 commands/LUN for - * IDs 2, 5-7, and 9-15. - */ - -/* - * NOTE: The below structure is for reference only, the actual structure - * to modify in order to change things is found after this fake one. - * -adapter_tag_info_t aic7xxx_tag_info[] = -{ - {DEFAULT_TAG_COMMANDS}, - {{4, 0, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 255, 4, 4, 4}}, - {DEFAULT_TAG_COMMANDS}, - {{255, 16, 4, 255, 16, 4, 4, 4, 127, 4, 4, 4, 4, 4, 4, 4}} -}; -*/ - -static adapter_tag_info_t aic7xxx_tag_info[] = -{ - {DEFAULT_TAG_COMMANDS}, - {DEFAULT_TAG_COMMANDS}, - {DEFAULT_TAG_COMMANDS}, - {DEFAULT_TAG_COMMANDS}, - {DEFAULT_TAG_COMMANDS}, - {DEFAULT_TAG_COMMANDS}, - {DEFAULT_TAG_COMMANDS}, - {DEFAULT_TAG_COMMANDS}, - {DEFAULT_TAG_COMMANDS}, - {DEFAULT_TAG_COMMANDS}, - {DEFAULT_TAG_COMMANDS}, - {DEFAULT_TAG_COMMANDS}, - {DEFAULT_TAG_COMMANDS}, - {DEFAULT_TAG_COMMANDS}, - {DEFAULT_TAG_COMMANDS}, - {DEFAULT_TAG_COMMANDS} -}; - - -/* - * Define an array of board names that can be indexed by aha_type. - * Don't forget to change this when changing the types! - */ -static const char *board_names[] = { - "AIC-7xxx Unknown", /* AIC_NONE */ - "Adaptec AIC-7810 Hardware RAID Controller", /* AIC_7810 */ - "Adaptec AIC-7770 SCSI host adapter", /* AIC_7770 */ - "Adaptec AHA-274X SCSI host adapter", /* AIC_7771 */ - "Adaptec AHA-284X SCSI host adapter", /* AIC_284x */ - "Adaptec AIC-7850 SCSI host adapter", /* AIC_7850 */ - "Adaptec AIC-7855 SCSI host adapter", /* AIC_7855 */ - "Adaptec AIC-7860 Ultra SCSI host adapter", /* AIC_7860 */ - "Adaptec AHA-2940A Ultra SCSI host adapter", /* AIC_7861 */ - "Adaptec AIC-7870 SCSI host adapter", /* AIC_7870 */ - "Adaptec AHA-294X SCSI host adapter", /* AIC_7871 */ - "Adaptec AHA-394X SCSI host adapter", /* AIC_7872 */ - "Adaptec AHA-398X SCSI host adapter", /* AIC_7873 */ - "Adaptec AHA-2944 SCSI host adapter", /* AIC_7874 */ - "Adaptec AIC-7880 Ultra SCSI host adapter", /* AIC_7880 */ - "Adaptec AHA-294X Ultra SCSI host adapter", /* AIC_7881 */ - "Adaptec AHA-394X Ultra SCSI host adapter", /* AIC_7882 */ - "Adaptec AHA-398X Ultra SCSI host adapter", /* AIC_7883 */ - "Adaptec AHA-2944 Ultra SCSI host adapter", /* AIC_7884 */ - "Adaptec AHA-2940UW Pro Ultra SCSI host adapter", /* AIC_7887 */ - "Adaptec AIC-7895 Ultra SCSI host adapter", /* AIC_7895 */ - "Adaptec AIC-7890/1 Ultra2 SCSI host adapter", /* AIC_7890 */ - "Adaptec AHA-293X Ultra2 SCSI host adapter", /* AIC_7890 */ - "Adaptec AHA-294X Ultra2 SCSI host adapter", /* AIC_7890 */ - "Adaptec AIC-7896/7 Ultra2 SCSI host adapter", /* AIC_7896 */ - "Adaptec AHA-394X Ultra2 SCSI host adapter", /* AIC_7897 */ - "Adaptec AHA-395X Ultra2 SCSI host adapter", /* AIC_7897 */ - "Adaptec PCMCIA SCSI controller", /* card bus stuff */ - "Adaptec AIC-7892 Ultra 160/m SCSI host adapter", /* AIC_7892 */ - "Adaptec AIC-7899 Ultra 160/m SCSI host adapter", /* AIC_7899 */ -}; - -/* - * There should be a specific return value for this in scsi.h, but - * it seems that most drivers ignore it. - */ -#define DID_UNDERFLOW DID_ERROR - -/* - * What we want to do is have the higher level scsi driver requeue - * the command to us. There is no specific driver status for this - * condition, but the higher level scsi driver will requeue the - * command on a DID_BUS_BUSY error. - * - * Upon further inspection and testing, it seems that DID_BUS_BUSY - * will *always* retry the command. We can get into an infinite loop - * if this happens when we really want some sort of counter that - * will automatically abort/reset the command after so many retries. - * Using DID_ERROR will do just that. (Made by a suggestion by - * Doug Ledford 8/1/96) - */ -#define DID_RETRY_COMMAND DID_ERROR - -#define HSCSIID 0x07 -#define SCSI_RESET 0x040 - -/* - * EISA/VL-bus stuff - */ -#define MINSLOT 1 -#define MAXSLOT 15 -#define SLOTBASE(x) ((x) << 12) -#define BASE_TO_SLOT(x) ((x) >> 12) - -/* - * Standard EISA Host ID regs (Offset from slot base) - */ -#define AHC_HID0 0x80 /* 0,1: msb of ID2, 2-7: ID1 */ -#define AHC_HID1 0x81 /* 0-4: ID3, 5-7: LSB ID2 */ -#define AHC_HID2 0x82 /* product */ -#define AHC_HID3 0x83 /* firmware revision */ - -/* - * AIC-7770 I/O range to reserve for a card - */ -#define MINREG 0xC00 -#define MAXREG 0xCFF - -#define INTDEF 0x5C /* Interrupt Definition Register */ - -/* - * AIC-78X0 PCI registers - */ -#define CLASS_PROGIF_REVID 0x08 -#define DEVREVID 0x000000FFul -#define PROGINFC 0x0000FF00ul -#define SUBCLASS 0x00FF0000ul -#define BASECLASS 0xFF000000ul - -#define CSIZE_LATTIME 0x0C -#define CACHESIZE 0x0000003Ful /* only 5 bits */ -#define LATTIME 0x0000FF00ul - -#define DEVCONFIG 0x40 -#define SCBSIZE32 0x00010000ul /* aic789X only */ -#define MPORTMODE 0x00000400ul /* aic7870 only */ -#define RAMPSM 0x00000200ul /* aic7870 only */ -#define RAMPSM_ULTRA2 0x00000004 -#define VOLSENSE 0x00000100ul -#define SCBRAMSEL 0x00000080ul -#define SCBRAMSEL_ULTRA2 0x00000008 -#define MRDCEN 0x00000040ul -#define EXTSCBTIME 0x00000020ul /* aic7870 only */ -#define EXTSCBPEN 0x00000010ul /* aic7870 only */ -#define BERREN 0x00000008ul -#define DACEN 0x00000004ul -#define STPWLEVEL 0x00000002ul -#define DIFACTNEGEN 0x00000001ul /* aic7870 only */ - -#define SCAMCTL 0x1a /* Ultra2 only */ -#define CCSCBBADDR 0xf0 /* aic7895/6/7 */ - -/* - * Define the different types of SEEPROMs on aic7xxx adapters - * and make it also represent the address size used in accessing - * its registers. The 93C46 chips have 1024 bits organized into - * 64 16-bit words, while the 93C56 chips have 2048 bits organized - * into 128 16-bit words. The C46 chips use 6 bits to address - * each word, while the C56 and C66 (4096 bits) use 8 bits to - * address each word. - */ -typedef enum {C46 = 6, C56_66 = 8} seeprom_chip_type; - -/* - * - * Define the format of the SEEPROM registers (16 bits). - * - */ -struct seeprom_config { - -/* - * SCSI ID Configuration Flags - */ -#define CFXFER 0x0007 /* synchronous transfer rate */ -#define CFSYNCH 0x0008 /* enable synchronous transfer */ -#define CFDISC 0x0010 /* enable disconnection */ -#define CFWIDEB 0x0020 /* wide bus device (wide card) */ -#define CFSYNCHISULTRA 0x0040 /* CFSYNC is an ultra offset */ -#define CFNEWULTRAFORMAT 0x0080 /* Use the Ultra2 SEEPROM format */ -#define CFSTART 0x0100 /* send start unit SCSI command */ -#define CFINCBIOS 0x0200 /* include in BIOS scan */ -#define CFRNFOUND 0x0400 /* report even if not found */ -#define CFMULTILUN 0x0800 /* probe mult luns in BIOS scan */ -#define CFWBCACHEYES 0x4000 /* Enable W-Behind Cache on drive */ -#define CFWBCACHENC 0xc000 /* Don't change W-Behind Cache */ -/* UNUSED 0x3000 */ - unsigned short device_flags[16]; /* words 0-15 */ - -/* - * BIOS Control Bits - */ -#define CFSUPREM 0x0001 /* support all removable drives */ -#define CFSUPREMB 0x0002 /* support removable drives for boot only */ -#define CFBIOSEN 0x0004 /* BIOS enabled */ -/* UNUSED 0x0008 */ -#define CFSM2DRV 0x0010 /* support more than two drives */ -#define CF284XEXTEND 0x0020 /* extended translation (284x cards) */ -/* UNUSED 0x0040 */ -#define CFEXTEND 0x0080 /* extended translation enabled */ -/* UNUSED 0xFF00 */ - unsigned short bios_control; /* word 16 */ - -/* - * Host Adapter Control Bits - */ -#define CFAUTOTERM 0x0001 /* Perform Auto termination */ -#define CFULTRAEN 0x0002 /* Ultra SCSI speed enable (Ultra cards) */ -#define CF284XSELTO 0x0003 /* Selection timeout (284x cards) */ -#define CF284XFIFO 0x000C /* FIFO Threshold (284x cards) */ -#define CFSTERM 0x0004 /* SCSI low byte termination */ -#define CFWSTERM 0x0008 /* SCSI high byte termination (wide card) */ -#define CFSPARITY 0x0010 /* SCSI parity */ -#define CF284XSTERM 0x0020 /* SCSI low byte termination (284x cards) */ -#define CFRESETB 0x0040 /* reset SCSI bus at boot */ -#define CFBPRIMARY 0x0100 /* Channel B primary on 7895 chipsets */ -#define CFSEAUTOTERM 0x0400 /* aic7890 Perform SE Auto Term */ -#define CFLVDSTERM 0x0800 /* aic7890 LVD Termination */ -/* UNUSED 0xF280 */ - unsigned short adapter_control; /* word 17 */ - -/* - * Bus Release, Host Adapter ID - */ -#define CFSCSIID 0x000F /* host adapter SCSI ID */ -/* UNUSED 0x00F0 */ -#define CFBRTIME 0xFF00 /* bus release time */ - unsigned short brtime_id; /* word 18 */ - -/* - * Maximum targets - */ -#define CFMAXTARG 0x00FF /* maximum targets */ -/* UNUSED 0xFF00 */ - unsigned short max_targets; /* word 19 */ - - unsigned short res_1[11]; /* words 20-30 */ - unsigned short checksum; /* word 31 */ -}; - -#define SELBUS_MASK 0x0a -#define SELNARROW 0x00 -#define SELBUSB 0x08 -#define SINGLE_BUS 0x00 - -#define SCB_TARGET(scb) \ - (((scb)->hscb->target_channel_lun & TID) >> 4) -#define SCB_LUN(scb) \ - ((scb)->hscb->target_channel_lun & LID) -#define SCB_IS_SCSIBUS_B(scb) \ - (((scb)->hscb->target_channel_lun & SELBUSB) != 0) - -/* - * If an error occurs during a data transfer phase, run the command - * to completion - it's easier that way - making a note of the error - * condition in this location. This then will modify a DID_OK status - * into an appropriate error for the higher-level SCSI code. - */ -#define aic7xxx_error(cmd) ((cmd)->SCp.Status) - -/* - * Keep track of the targets returned status. - */ -#define aic7xxx_status(cmd) ((cmd)->SCp.sent_command) - -/* - * The position of the SCSI commands scb within the scb array. - */ -#define aic7xxx_position(cmd) ((cmd)->SCp.have_data_in) - -/* - * The stored DMA mapping for single-buffer data transfers. - */ -#define aic7xxx_mapping(cmd) ((cmd)->SCp.phase) - -/* - * Get out private data area from a scsi cmd pointer - */ -#define AIC_DEV(cmd) ((struct aic_dev_data *)(cmd)->device->hostdata) - -/* - * So we can keep track of our host structs - */ -static struct aic7xxx_host *first_aic7xxx = NULL; - -/* - * As of Linux 2.1, the mid-level SCSI code uses virtual addresses - * in the scatter-gather lists. We need to convert the virtual - * addresses to physical addresses. - */ -struct hw_scatterlist { - unsigned int address; - unsigned int length; -}; - -/* - * Maximum number of SG segments these cards can support. - */ -#define AIC7XXX_MAX_SG 128 - -/* - * The maximum number of SCBs we could have for ANY type - * of card. DON'T FORGET TO CHANGE THE SCB MASK IN THE - * SEQUENCER CODE IF THIS IS MODIFIED! - */ -#define AIC7XXX_MAXSCB 255 - - -struct aic7xxx_hwscb { -/* ------------ Begin hardware supported fields ---------------- */ -/* 0*/ unsigned char control; -/* 1*/ unsigned char target_channel_lun; /* 4/1/3 bits */ -/* 2*/ unsigned char target_status; -/* 3*/ unsigned char SG_segment_count; -/* 4*/ unsigned int SG_list_pointer; -/* 8*/ unsigned char residual_SG_segment_count; -/* 9*/ unsigned char residual_data_count[3]; -/*12*/ unsigned int data_pointer; -/*16*/ unsigned int data_count; -/*20*/ unsigned int SCSI_cmd_pointer; -/*24*/ unsigned char SCSI_cmd_length; -/*25*/ unsigned char tag; /* Index into our kernel SCB array. - * Also used as the tag for tagged I/O - */ -#define SCB_PIO_TRANSFER_SIZE 26 /* amount we need to upload/download - * via PIO to initialize a transaction. - */ -/*26*/ unsigned char next; /* Used to thread SCBs awaiting selection - * or disconnected down in the sequencer. - */ -/*27*/ unsigned char prev; -/*28*/ unsigned int pad; /* - * Unused by the kernel, but we require - * the padding so that the array of - * hardware SCBs is aligned on 32 byte - * boundaries so the sequencer can index - */ -}; - -typedef enum { - SCB_FREE = 0x0000, - SCB_DTR_SCB = 0x0001, - SCB_WAITINGQ = 0x0002, - SCB_ACTIVE = 0x0004, - SCB_SENSE = 0x0008, - SCB_ABORT = 0x0010, - SCB_DEVICE_RESET = 0x0020, - SCB_RESET = 0x0040, - SCB_RECOVERY_SCB = 0x0080, - SCB_MSGOUT_PPR = 0x0100, - SCB_MSGOUT_SENT = 0x0200, - SCB_MSGOUT_SDTR = 0x0400, - SCB_MSGOUT_WDTR = 0x0800, - SCB_MSGOUT_BITS = SCB_MSGOUT_PPR | - SCB_MSGOUT_SENT | - SCB_MSGOUT_SDTR | - SCB_MSGOUT_WDTR, - SCB_QUEUED_ABORT = 0x1000, - SCB_QUEUED_FOR_DONE = 0x2000, - SCB_WAS_BUSY = 0x4000, - SCB_QUEUE_FULL = 0x8000 -} scb_flag_type; - -typedef enum { - AHC_FNONE = 0x00000000, - AHC_PAGESCBS = 0x00000001, - AHC_CHANNEL_B_PRIMARY = 0x00000002, - AHC_USEDEFAULTS = 0x00000004, - AHC_INDIRECT_PAGING = 0x00000008, - AHC_CHNLB = 0x00000020, - AHC_CHNLC = 0x00000040, - AHC_EXTEND_TRANS_A = 0x00000100, - AHC_EXTEND_TRANS_B = 0x00000200, - AHC_TERM_ENB_A = 0x00000400, - AHC_TERM_ENB_SE_LOW = 0x00000400, - AHC_TERM_ENB_B = 0x00000800, - AHC_TERM_ENB_SE_HIGH = 0x00000800, - AHC_HANDLING_REQINITS = 0x00001000, - AHC_TARGETMODE = 0x00002000, - AHC_NEWEEPROM_FMT = 0x00004000, - /* - * Here ends the FreeBSD defined flags and here begins the linux defined - * flags. NOTE: I did not preserve the old flag name during this change - * specifically to force me to evaluate what flags were being used properly - * and what flags weren't. This way, I could clean up the flag usage on - * a use by use basis. Doug Ledford - */ - AHC_MOTHERBOARD = 0x00020000, - AHC_NO_STPWEN = 0x00040000, - AHC_RESET_DELAY = 0x00080000, - AHC_A_SCANNED = 0x00100000, - AHC_B_SCANNED = 0x00200000, - AHC_MULTI_CHANNEL = 0x00400000, - AHC_BIOS_ENABLED = 0x00800000, - AHC_SEEPROM_FOUND = 0x01000000, - AHC_TERM_ENB_LVD = 0x02000000, - AHC_ABORT_PENDING = 0x04000000, - AHC_RESET_PENDING = 0x08000000, -#define AHC_IN_ISR_BIT 28 - AHC_IN_ISR = 0x10000000, - AHC_IN_ABORT = 0x20000000, - AHC_IN_RESET = 0x40000000, - AHC_EXTERNAL_SRAM = 0x80000000 -} ahc_flag_type; - -typedef enum { - AHC_NONE = 0x0000, - AHC_CHIPID_MASK = 0x00ff, - AHC_AIC7770 = 0x0001, - AHC_AIC7850 = 0x0002, - AHC_AIC7860 = 0x0003, - AHC_AIC7870 = 0x0004, - AHC_AIC7880 = 0x0005, - AHC_AIC7890 = 0x0006, - AHC_AIC7895 = 0x0007, - AHC_AIC7896 = 0x0008, - AHC_AIC7892 = 0x0009, - AHC_AIC7899 = 0x000a, - AHC_VL = 0x0100, - AHC_EISA = 0x0200, - AHC_PCI = 0x0400, -} ahc_chip; - -typedef enum { - AHC_FENONE = 0x0000, - AHC_ULTRA = 0x0001, - AHC_ULTRA2 = 0x0002, - AHC_WIDE = 0x0004, - AHC_TWIN = 0x0008, - AHC_MORE_SRAM = 0x0010, - AHC_CMD_CHAN = 0x0020, - AHC_QUEUE_REGS = 0x0040, - AHC_SG_PRELOAD = 0x0080, - AHC_SPIOCAP = 0x0100, - AHC_ULTRA3 = 0x0200, - AHC_NEW_AUTOTERM = 0x0400, - AHC_AIC7770_FE = AHC_FENONE, - AHC_AIC7850_FE = AHC_SPIOCAP, - AHC_AIC7860_FE = AHC_ULTRA|AHC_SPIOCAP, - AHC_AIC7870_FE = AHC_FENONE, - AHC_AIC7880_FE = AHC_ULTRA, - AHC_AIC7890_FE = AHC_MORE_SRAM|AHC_CMD_CHAN|AHC_ULTRA2| - AHC_QUEUE_REGS|AHC_SG_PRELOAD|AHC_NEW_AUTOTERM, - AHC_AIC7895_FE = AHC_MORE_SRAM|AHC_CMD_CHAN|AHC_ULTRA, - AHC_AIC7896_FE = AHC_AIC7890_FE, - AHC_AIC7892_FE = AHC_AIC7890_FE|AHC_ULTRA3, - AHC_AIC7899_FE = AHC_AIC7890_FE|AHC_ULTRA3, -} ahc_feature; - -#define SCB_DMA_ADDR(scb, addr) ((unsigned long)(addr) + (scb)->scb_dma->dma_offset) - -struct aic7xxx_scb_dma { - unsigned long dma_offset; /* Correction you have to add - * to virtual address to get - * dma handle in this region */ - dma_addr_t dma_address; /* DMA handle of the start, - * for unmap */ - unsigned int dma_len; /* DMA length */ -}; - -typedef enum { - AHC_BUG_NONE = 0x0000, - AHC_BUG_TMODE_WIDEODD = 0x0001, - AHC_BUG_AUTOFLUSH = 0x0002, - AHC_BUG_CACHETHEN = 0x0004, - AHC_BUG_CACHETHEN_DIS = 0x0008, - AHC_BUG_PCI_2_1_RETRY = 0x0010, - AHC_BUG_PCI_MWI = 0x0020, - AHC_BUG_SCBCHAN_UPLOAD = 0x0040, -} ahc_bugs; - -struct aic7xxx_scb { - struct aic7xxx_hwscb *hscb; /* corresponding hardware scb */ - struct scsi_cmnd *cmd; /* scsi_cmnd for this scb */ - struct aic7xxx_scb *q_next; /* next scb in queue */ - volatile scb_flag_type flags; /* current state of scb */ - struct hw_scatterlist *sg_list; /* SG list in adapter format */ - unsigned char tag_action; - unsigned char sg_count; - unsigned char *sense_cmd; /* - * Allocate 6 characters for - * sense command. - */ - unsigned char *cmnd; - unsigned int sg_length; /* - * We init this during - * buildscb so we don't have - * to calculate anything during - * underflow/overflow/stat code - */ - void *kmalloc_ptr; - struct aic7xxx_scb_dma *scb_dma; -}; - -/* - * Define a linked list of SCBs. - */ -typedef struct { - struct aic7xxx_scb *head; - struct aic7xxx_scb *tail; -} scb_queue_type; - -static struct { - unsigned char errno; - const char *errmesg; -} hard_error[] = { - { ILLHADDR, "Illegal Host Access" }, - { ILLSADDR, "Illegal Sequencer Address referenced" }, - { ILLOPCODE, "Illegal Opcode in sequencer program" }, - { SQPARERR, "Sequencer Ram Parity Error" }, - { DPARERR, "Data-Path Ram Parity Error" }, - { MPARERR, "Scratch Ram/SCB Array Ram Parity Error" }, - { PCIERRSTAT,"PCI Error detected" }, - { CIOPARERR, "CIOBUS Parity Error" } -}; - -static unsigned char -generic_sense[] = { REQUEST_SENSE, 0, 0, 0, 255, 0 }; - -typedef struct { - scb_queue_type free_scbs; /* - * SCBs assigned to free slot on - * card (no paging required) - */ - struct aic7xxx_scb *scb_array[AIC7XXX_MAXSCB]; - struct aic7xxx_hwscb *hscbs; - unsigned char numscbs; /* current number of scbs */ - unsigned char maxhscbs; /* hardware scbs */ - unsigned char maxscbs; /* max scbs including pageable scbs */ - dma_addr_t hscbs_dma; /* DMA handle to hscbs */ - unsigned int hscbs_dma_len; /* length of the above DMA area */ - void *hscb_kmalloc_ptr; -} scb_data_type; - -struct target_cmd { - unsigned char mesg_bytes[4]; - unsigned char command[28]; -}; - -#define AHC_TRANS_CUR 0x0001 -#define AHC_TRANS_ACTIVE 0x0002 -#define AHC_TRANS_GOAL 0x0004 -#define AHC_TRANS_USER 0x0008 -#define AHC_TRANS_QUITE 0x0010 -typedef struct { - unsigned char width; - unsigned char period; - unsigned char offset; - unsigned char options; -} transinfo_type; - -struct aic_dev_data { - volatile scb_queue_type delayed_scbs; - volatile unsigned short temp_q_depth; - unsigned short max_q_depth; - volatile unsigned char active_cmds; - /* - * Statistics Kept: - * - * Total Xfers (count for each command that has a data xfer), - * broken down by reads && writes. - * - * Further sorted into a few bins for keeping tabs on how many commands - * we get of various sizes. - * - */ - long w_total; /* total writes */ - long r_total; /* total reads */ - long barrier_total; /* total num of REQ_BARRIER commands */ - long ordered_total; /* How many REQ_BARRIER commands we - used ordered tags to satisfy */ - long w_bins[6]; /* binned write */ - long r_bins[6]; /* binned reads */ - transinfo_type cur; - transinfo_type goal; -#define BUS_DEVICE_RESET_PENDING 0x01 -#define DEVICE_RESET_DELAY 0x02 -#define DEVICE_PRINT_DTR 0x04 -#define DEVICE_WAS_BUSY 0x08 -#define DEVICE_DTR_SCANNED 0x10 -#define DEVICE_SCSI_3 0x20 - volatile unsigned char flags; - unsigned needppr:1; - unsigned needppr_copy:1; - unsigned needsdtr:1; - unsigned needsdtr_copy:1; - unsigned needwdtr:1; - unsigned needwdtr_copy:1; - unsigned dtr_pending:1; - struct scsi_device *SDptr; - struct list_head list; -}; - -/* - * Define a structure used for each host adapter. Note, in order to avoid - * problems with architectures I can't test on (because I don't have one, - * such as the Alpha based systems) which happen to give faults for - * non-aligned memory accesses, care was taken to align this structure - * in a way that guaranteed all accesses larger than 8 bits were aligned - * on the appropriate boundary. It's also organized to try and be more - * cache line efficient. Be careful when changing this lest you might hurt - * overall performance and bring down the wrath of the masses. - */ -struct aic7xxx_host { - /* - * This is the first 64 bytes in the host struct - */ - - /* - * We are grouping things here....first, items that get either read or - * written with nearly every interrupt - */ - volatile long flags; - ahc_feature features; /* chip features */ - unsigned long base; /* card base address */ - volatile unsigned char __iomem *maddr; /* memory mapped address */ - unsigned long isr_count; /* Interrupt count */ - unsigned long spurious_int; - scb_data_type *scb_data; - struct aic7xxx_cmd_queue { - struct scsi_cmnd *head; - struct scsi_cmnd *tail; - } completeq; - - /* - * Things read/written on nearly every entry into aic7xxx_queue() - */ - volatile scb_queue_type waiting_scbs; - unsigned char unpause; /* unpause value for HCNTRL */ - unsigned char pause; /* pause value for HCNTRL */ - volatile unsigned char qoutfifonext; - volatile unsigned char activescbs; /* active scbs */ - volatile unsigned char max_activescbs; - volatile unsigned char qinfifonext; - volatile unsigned char *untagged_scbs; - volatile unsigned char *qoutfifo; - volatile unsigned char *qinfifo; - - unsigned char dev_last_queue_full[MAX_TARGETS]; - unsigned char dev_last_queue_full_count[MAX_TARGETS]; - unsigned short ultraenb; /* Gets downloaded to card as a bitmap */ - unsigned short discenable; /* Gets downloaded to card as a bitmap */ - transinfo_type user[MAX_TARGETS]; - - unsigned char msg_buf[13]; /* The message for the target */ - unsigned char msg_type; -#define MSG_TYPE_NONE 0x00 -#define MSG_TYPE_INITIATOR_MSGOUT 0x01 -#define MSG_TYPE_INITIATOR_MSGIN 0x02 - unsigned char msg_len; /* Length of message */ - unsigned char msg_index; /* Index into msg_buf array */ - - - /* - * We put the less frequently used host structure items - * after the more frequently used items to try and ease - * the burden on the cache subsystem. - * These entries are not *commonly* accessed, whereas - * the preceding entries are accessed very often. - */ - - unsigned int irq; /* IRQ for this adapter */ - int instance; /* aic7xxx instance number */ - int scsi_id; /* host adapter SCSI ID */ - int scsi_id_b; /* channel B for twin adapters */ - unsigned int bios_address; - int board_name_index; - unsigned short bios_control; /* bios control - SEEPROM */ - unsigned short adapter_control; /* adapter control - SEEPROM */ - struct pci_dev *pdev; - unsigned char pci_bus; - unsigned char pci_device_fn; - struct seeprom_config sc; - unsigned short sc_type; - unsigned short sc_size; - struct aic7xxx_host *next; /* allow for multiple IRQs */ - struct Scsi_Host *host; /* pointer to scsi host */ - struct list_head aic_devs; /* all aic_dev structs on host */ - int host_no; /* SCSI host number */ - unsigned long mbase; /* I/O memory address */ - ahc_chip chip; /* chip type */ - ahc_bugs bugs; - dma_addr_t fifo_dma; /* DMA handle for fifo arrays */ -}; - -/* - * Valid SCSIRATE values. (p. 3-17) - * Provides a mapping of transfer periods in ns/4 to the proper value to - * stick in the SCSIRATE reg to use that transfer rate. - */ -#define AHC_SYNCRATE_ULTRA3 0 -#define AHC_SYNCRATE_ULTRA2 1 -#define AHC_SYNCRATE_ULTRA 3 -#define AHC_SYNCRATE_FAST 6 -#define AHC_SYNCRATE_CRC 0x40 -#define AHC_SYNCRATE_SE 0x10 -static struct aic7xxx_syncrate { - /* Rates in Ultra mode have bit 8 of sxfr set */ -#define ULTRA_SXFR 0x100 - int sxfr_ultra2; - int sxfr; - unsigned char period; - const char *rate[2]; -} aic7xxx_syncrates[] = { - { 0x42, 0x000, 9, {"80.0", "160.0"} }, - { 0x13, 0x000, 10, {"40.0", "80.0"} }, - { 0x14, 0x000, 11, {"33.0", "66.6"} }, - { 0x15, 0x100, 12, {"20.0", "40.0"} }, - { 0x16, 0x110, 15, {"16.0", "32.0"} }, - { 0x17, 0x120, 18, {"13.4", "26.8"} }, - { 0x18, 0x000, 25, {"10.0", "20.0"} }, - { 0x19, 0x010, 31, {"8.0", "16.0"} }, - { 0x1a, 0x020, 37, {"6.67", "13.3"} }, - { 0x1b, 0x030, 43, {"5.7", "11.4"} }, - { 0x10, 0x040, 50, {"5.0", "10.0"} }, - { 0x00, 0x050, 56, {"4.4", "8.8" } }, - { 0x00, 0x060, 62, {"4.0", "8.0" } }, - { 0x00, 0x070, 68, {"3.6", "7.2" } }, - { 0x00, 0x000, 0, {NULL, NULL} }, -}; - -#define CTL_OF_SCB(scb) (((scb->hscb)->target_channel_lun >> 3) & 0x1), \ - (((scb->hscb)->target_channel_lun >> 4) & 0xf), \ - ((scb->hscb)->target_channel_lun & 0x07) - -#define CTL_OF_CMD(cmd) ((cmd->device->channel) & 0x01), \ - ((cmd->device->id) & 0x0f), \ - ((cmd->device->lun) & 0x07) - -#define TARGET_INDEX(cmd) ((cmd)->device->id | ((cmd)->device->channel << 3)) - -/* - * A nice little define to make doing our printks a little easier - */ - -#define WARN_LEAD KERN_WARNING "(scsi%d:%d:%d:%d) " -#define INFO_LEAD KERN_INFO "(scsi%d:%d:%d:%d) " - -/* - * XXX - these options apply unilaterally to _all_ 274x/284x/294x - * cards in the system. This should be fixed. Exceptions to this - * rule are noted in the comments. - */ - -/* - * Use this as the default queue depth when setting tagged queueing on. - */ -static unsigned int aic7xxx_default_queue_depth = AIC7XXX_CMDS_PER_DEVICE; - -/* - * Skip the scsi bus reset. Non 0 make us skip the reset at startup. This - * has no effect on any later resets that might occur due to things like - * SCSI bus timeouts. - */ -static unsigned int aic7xxx_no_reset = 0; -/* - * Certain PCI motherboards will scan PCI devices from highest to lowest, - * others scan from lowest to highest, and they tend to do all kinds of - * strange things when they come into contact with PCI bridge chips. The - * net result of all this is that the PCI card that is actually used to boot - * the machine is very hard to detect. Most motherboards go from lowest - * PCI slot number to highest, and the first SCSI controller found is the - * one you boot from. The only exceptions to this are when a controller - * has its BIOS disabled. So, we by default sort all of our SCSI controllers - * from lowest PCI slot number to highest PCI slot number. We also force - * all controllers with their BIOS disabled to the end of the list. This - * works on *almost* all computers. Where it doesn't work, we have this - * option. Setting this option to non-0 will reverse the order of the sort - * to highest first, then lowest, but will still leave cards with their BIOS - * disabled at the very end. That should fix everyone up unless there are - * really strange cirumstances. - */ -static int aic7xxx_reverse_scan = 0; -/* - * Should we force EXTENDED translation on a controller. - * 0 == Use whatever is in the SEEPROM or default to off - * 1 == Use whatever is in the SEEPROM or default to on - */ -static unsigned int aic7xxx_extended = 0; -/* - * The IRQ trigger method used on EISA controllers. Does not effect PCI cards. - * -1 = Use detected settings. - * 0 = Force Edge triggered mode. - * 1 = Force Level triggered mode. - */ -static int aic7xxx_irq_trigger = -1; -/* - * This variable is used to override the termination settings on a controller. - * This should not be used under normal conditions. However, in the case - * that a controller does not have a readable SEEPROM (so that we can't - * read the SEEPROM settings directly) and that a controller has a buggered - * version of the cable detection logic, this can be used to force the - * correct termination. It is preferable to use the manual termination - * settings in the BIOS if possible, but some motherboard controllers store - * those settings in a format we can't read. In other cases, auto term - * should also work, but the chipset was put together with no auto term - * logic (common on motherboard controllers). In those cases, we have - * 32 bits here to work with. That's good for 8 controllers/channels. The - * bits are organized as 4 bits per channel, with scsi0 getting the lowest - * 4 bits in the int. A 1 in a bit position indicates the termination setting - * that corresponds to that bit should be enabled, a 0 is disabled. - * It looks something like this: - * - * 0x0f = 1111-Single Ended Low Byte Termination on/off - * ||\-Single Ended High Byte Termination on/off - * |\-LVD Low Byte Termination on/off - * \-LVD High Byte Termination on/off - * - * For non-Ultra2 controllers, the upper 2 bits are not important. So, to - * enable both high byte and low byte termination on scsi0, I would need to - * make sure that the override_term variable was set to 0x03 (bits 0011). - * To make sure that all termination is enabled on an Ultra2 controller at - * scsi2 and only high byte termination on scsi1 and high and low byte - * termination on scsi0, I would set override_term=0xf23 (bits 1111 0010 0011) - * - * For the most part, users should never have to use this, that's why I - * left it fairly cryptic instead of easy to understand. If you need it, - * most likely someone will be telling you what your's needs to be set to. - */ -static int aic7xxx_override_term = -1; -/* - * Certain motherboard chipset controllers tend to screw - * up the polarity of the term enable output pin. Use this variable - * to force the correct polarity for your system. This is a bitfield variable - * similar to the previous one, but this one has one bit per channel instead - * of four. - * 0 = Force the setting to active low. - * 1 = Force setting to active high. - * Most Adaptec cards are active high, several motherboards are active low. - * To force a 2940 card at SCSI 0 to active high and a motherboard 7895 - * controller at scsi1 and scsi2 to active low, and a 2910 card at scsi3 - * to active high, you would need to set stpwlev=0x9 (bits 1001). - * - * People shouldn't need to use this, but if you are experiencing lots of - * SCSI timeout problems, this may help. There is one sure way to test what - * this option needs to be. Using a boot floppy to boot the system, configure - * your system to enable all SCSI termination (in the Adaptec SCSI BIOS) and - * if needed then also pass a value to override_term to make sure that the - * driver is enabling SCSI termination, then set this variable to either 0 - * or 1. When the driver boots, make sure there are *NO* SCSI cables - * connected to your controller. If it finds and inits the controller - * without problem, then the setting you passed to stpwlev was correct. If - * the driver goes into a reset loop and hangs the system, then you need the - * other setting for this variable. If neither setting lets the machine - * boot then you have definite termination problems that may not be fixable. - */ -static int aic7xxx_stpwlev = -1; -/* - * Set this to non-0 in order to force the driver to panic the kernel - * and print out debugging info on a SCSI abort or reset cycle. - */ -static int aic7xxx_panic_on_abort = 0; -/* - * PCI bus parity checking of the Adaptec controllers. This is somewhat - * dubious at best. To my knowledge, this option has never actually - * solved a PCI parity problem, but on certain machines with broken PCI - * chipset configurations, it can generate tons of false error messages. - * It's included in the driver for completeness. - * 0 = Shut off PCI parity check - * -1 = Normal polarity pci parity checking - * 1 = reverse polarity pci parity checking - * - * NOTE: you can't actually pass -1 on the lilo prompt. So, to set this - * variable to -1 you would actually want to simply pass the variable - * name without a number. That will invert the 0 which will result in - * -1. - */ -static int aic7xxx_pci_parity = 0; -/* - * Set this to any non-0 value to cause us to dump the contents of all - * the card's registers in a hex dump format tailored to each model of - * controller. - * - * NOTE: THE CONTROLLER IS LEFT IN AN UNUSABLE STATE BY THIS OPTION. - * YOU CANNOT BOOT UP WITH THIS OPTION, IT IS FOR DEBUGGING PURPOSES - * ONLY - */ -static int aic7xxx_dump_card = 0; -/* - * Set this to a non-0 value to make us dump out the 32 bit instruction - * registers on the card after completing the sequencer download. This - * allows the actual sequencer download to be verified. It is possible - * to use this option and still boot up and run your system. This is - * only intended for debugging purposes. - */ -static int aic7xxx_dump_sequencer = 0; -/* - * Certain newer motherboards have put new PCI based devices into the - * IO spaces that used to typically be occupied by VLB or EISA cards. - * This overlap can cause these newer motherboards to lock up when scanned - * for older EISA and VLB devices. Setting this option to non-0 will - * cause the driver to skip scanning for any VLB or EISA controllers and - * only support the PCI controllers. NOTE: this means that if the kernel - * os compiled with PCI support disabled, then setting this to non-0 - * would result in never finding any devices :) - */ -static int aic7xxx_no_probe = 0; -/* - * On some machines, enabling the external SCB RAM isn't reliable yet. I - * haven't had time to make test patches for things like changing the - * timing mode on that external RAM either. Some of those changes may - * fix the problem. Until then though, we default to external SCB RAM - * off and give a command line option to enable it. - */ -static int aic7xxx_scbram = 0; -/* - * So that we can set how long each device is given as a selection timeout. - * The table of values goes like this: - * 0 - 256ms - * 1 - 128ms - * 2 - 64ms - * 3 - 32ms - * We default to 64ms because it's fast. Some old SCSI-I devices need a - * longer time. The final value has to be left shifted by 3, hence 0x10 - * is the final value. - */ -static int aic7xxx_seltime = 0x10; -/* - * So that insmod can find the variable and make it point to something - */ -#ifdef MODULE -static char * aic7xxx = NULL; -module_param(aic7xxx, charp, 0); -#endif - -#define VERBOSE_NORMAL 0x0000 -#define VERBOSE_NEGOTIATION 0x0001 -#define VERBOSE_SEQINT 0x0002 -#define VERBOSE_SCSIINT 0x0004 -#define VERBOSE_PROBE 0x0008 -#define VERBOSE_PROBE2 0x0010 -#define VERBOSE_NEGOTIATION2 0x0020 -#define VERBOSE_MINOR_ERROR 0x0040 -#define VERBOSE_TRACING 0x0080 -#define VERBOSE_ABORT 0x0f00 -#define VERBOSE_ABORT_MID 0x0100 -#define VERBOSE_ABORT_FIND 0x0200 -#define VERBOSE_ABORT_PROCESS 0x0400 -#define VERBOSE_ABORT_RETURN 0x0800 -#define VERBOSE_RESET 0xf000 -#define VERBOSE_RESET_MID 0x1000 -#define VERBOSE_RESET_FIND 0x2000 -#define VERBOSE_RESET_PROCESS 0x4000 -#define VERBOSE_RESET_RETURN 0x8000 -static int aic7xxx_verbose = VERBOSE_NORMAL | VERBOSE_NEGOTIATION | - VERBOSE_PROBE; /* verbose messages */ - - -/**************************************************************************** - * - * We're going to start putting in function declarations so that order of - * functions is no longer important. As needed, they are added here. - * - ***************************************************************************/ - -static int aic7xxx_release(struct Scsi_Host *host); -static void aic7xxx_set_syncrate(struct aic7xxx_host *p, - struct aic7xxx_syncrate *syncrate, int target, int channel, - unsigned int period, unsigned int offset, unsigned char options, - unsigned int type, struct aic_dev_data *aic_dev); -static void aic7xxx_set_width(struct aic7xxx_host *p, int target, int channel, - int lun, unsigned int width, unsigned int type, - struct aic_dev_data *aic_dev); -static void aic7xxx_panic_abort(struct aic7xxx_host *p, struct scsi_cmnd *cmd); -static void aic7xxx_print_card(struct aic7xxx_host *p); -static void aic7xxx_print_scratch_ram(struct aic7xxx_host *p); -static void aic7xxx_print_sequencer(struct aic7xxx_host *p, int downloaded); -#ifdef AIC7XXX_VERBOSE_DEBUGGING -static void aic7xxx_check_scbs(struct aic7xxx_host *p, char *buffer); -#endif - -/**************************************************************************** - * - * These functions are now used. They happen to be wrapped in useless - * inb/outb port read/writes around the real reads and writes because it - * seems that certain very fast CPUs have a problem dealing with us when - * going at full speed. - * - ***************************************************************************/ - -static unsigned char -aic_inb(struct aic7xxx_host *p, long port) -{ -#ifdef MMAPIO - unsigned char x; - if(p->maddr) - { - x = readb(p->maddr + port); - } - else - { - x = inb(p->base + port); - } - return(x); -#else - return(inb(p->base + port)); -#endif -} - -static void -aic_outb(struct aic7xxx_host *p, unsigned char val, long port) -{ -#ifdef MMAPIO - if(p->maddr) - { - writeb(val, p->maddr + port); - mb(); /* locked operation in order to force CPU ordering */ - readb(p->maddr + HCNTRL); /* dummy read to flush the PCI write */ - } - else - { - outb(val, p->base + port); - mb(); /* locked operation in order to force CPU ordering */ - } -#else - outb(val, p->base + port); - mb(); /* locked operation in order to force CPU ordering */ -#endif -} - -/*+F************************************************************************* - * Function: - * aic7xxx_setup - * - * Description: - * Handle Linux boot parameters. This routine allows for assigning a value - * to a parameter with a ':' between the parameter and the value. - * ie. aic7xxx=unpause:0x0A,extended - *-F*************************************************************************/ -static int -aic7xxx_setup(char *s) -{ - int i, n; - char *p; - char *end; - - static struct { - const char *name; - unsigned int *flag; - } options[] = { - { "extended", &aic7xxx_extended }, - { "no_reset", &aic7xxx_no_reset }, - { "irq_trigger", &aic7xxx_irq_trigger }, - { "verbose", &aic7xxx_verbose }, - { "reverse_scan",&aic7xxx_reverse_scan }, - { "override_term", &aic7xxx_override_term }, - { "stpwlev", &aic7xxx_stpwlev }, - { "no_probe", &aic7xxx_no_probe }, - { "panic_on_abort", &aic7xxx_panic_on_abort }, - { "pci_parity", &aic7xxx_pci_parity }, - { "dump_card", &aic7xxx_dump_card }, - { "dump_sequencer", &aic7xxx_dump_sequencer }, - { "default_queue_depth", &aic7xxx_default_queue_depth }, - { "scbram", &aic7xxx_scbram }, - { "seltime", &aic7xxx_seltime }, - { "tag_info", NULL } - }; - - end = strchr(s, '\0'); - - while ((p = strsep(&s, ",.")) != NULL) - { - for (i = 0; i < ARRAY_SIZE(options); i++) - { - n = strlen(options[i].name); - if (!strncmp(options[i].name, p, n)) - { - if (!strncmp(p, "tag_info", n)) - { - if (p[n] == ':') - { - char *base; - char *tok, *tok_end, *tok_end2; - char tok_list[] = { '.', ',', '{', '}', '\0' }; - int i, instance = -1, device = -1; - unsigned char done = FALSE; - - base = p; - tok = base + n + 1; /* Forward us just past the ':' */ - tok_end = strchr(tok, '\0'); - if (tok_end < end) - *tok_end = ','; - while(!done) - { - switch(*tok) - { - case '{': - if (instance == -1) - instance = 0; - else if (device == -1) - device = 0; - tok++; - break; - case '}': - if (device != -1) - device = -1; - else if (instance != -1) - instance = -1; - tok++; - break; - case ',': - case '.': - if (instance == -1) - done = TRUE; - else if (device >= 0) - device++; - else if (instance >= 0) - instance++; - if ( (device >= MAX_TARGETS) || - (instance >= ARRAY_SIZE(aic7xxx_tag_info)) ) - done = TRUE; - tok++; - if (!done) - { - base = tok; - } - break; - case '\0': - done = TRUE; - break; - default: - done = TRUE; - tok_end = strchr(tok, '\0'); - for(i=0; tok_list[i]; i++) - { - tok_end2 = strchr(tok, tok_list[i]); - if ( (tok_end2) && (tok_end2 < tok_end) ) - { - tok_end = tok_end2; - done = FALSE; - } - } - if ( (instance >= 0) && (device >= 0) && - (instance < ARRAY_SIZE(aic7xxx_tag_info)) && - (device < MAX_TARGETS) ) - aic7xxx_tag_info[instance].tag_commands[device] = - simple_strtoul(tok, NULL, 0) & 0xff; - tok = tok_end; - break; - } - } - while((p != base) && (p != NULL)) - p = strsep(&s, ",."); - } - } - else if (p[n] == ':') - { - *(options[i].flag) = simple_strtoul(p + n + 1, NULL, 0); - if(!strncmp(p, "seltime", n)) - { - *(options[i].flag) = (*(options[i].flag) % 4) << 3; - } - } - else if (!strncmp(p, "verbose", n)) - { - *(options[i].flag) = 0xff29; - } - else - { - *(options[i].flag) = ~(*(options[i].flag)); - if(!strncmp(p, "seltime", n)) - { - *(options[i].flag) = (*(options[i].flag) % 4) << 3; - } - } - } - } - } - return 1; -} - -__setup("aic7xxx=", aic7xxx_setup); - -/*+F************************************************************************* - * Function: - * pause_sequencer - * - * Description: - * Pause the sequencer and wait for it to actually stop - this - * is important since the sequencer can disable pausing for critical - * sections. - *-F*************************************************************************/ -static void -pause_sequencer(struct aic7xxx_host *p) -{ - aic_outb(p, p->pause, HCNTRL); - while ((aic_inb(p, HCNTRL) & PAUSE) == 0) - { - ; - } - if(p->features & AHC_ULTRA2) - { - aic_inb(p, CCSCBCTL); - } -} - -/*+F************************************************************************* - * Function: - * unpause_sequencer - * - * Description: - * Unpause the sequencer. Unremarkable, yet done often enough to - * warrant an easy way to do it. - *-F*************************************************************************/ -static void -unpause_sequencer(struct aic7xxx_host *p, int unpause_always) -{ - if (unpause_always || - ( !(aic_inb(p, INTSTAT) & (SCSIINT | SEQINT | BRKADRINT)) && - !(p->flags & AHC_HANDLING_REQINITS) ) ) - { - aic_outb(p, p->unpause, HCNTRL); - } -} - -/*+F************************************************************************* - * Function: - * restart_sequencer - * - * Description: - * Restart the sequencer program from address zero. This assumes - * that the sequencer is already paused. - *-F*************************************************************************/ -static void -restart_sequencer(struct aic7xxx_host *p) -{ - aic_outb(p, 0, SEQADDR0); - aic_outb(p, 0, SEQADDR1); - aic_outb(p, FASTMODE, SEQCTL); -} - -/* - * We include the aic7xxx_seq.c file here so that the other defines have - * already been made, and so that it comes before the code that actually - * downloads the instructions (since we don't typically use function - * prototype, our code has to be ordered that way, it's a left-over from - * the original driver days.....I should fix it some time DL). - */ -#include "aic7xxx_old/aic7xxx_seq.c" - -/*+F************************************************************************* - * Function: - * aic7xxx_check_patch - * - * Description: - * See if the next patch to download should be downloaded. - *-F*************************************************************************/ -static int -aic7xxx_check_patch(struct aic7xxx_host *p, - struct sequencer_patch **start_patch, int start_instr, int *skip_addr) -{ - struct sequencer_patch *cur_patch; - struct sequencer_patch *last_patch; - int num_patches; - - num_patches = ARRAY_SIZE(sequencer_patches); - last_patch = &sequencer_patches[num_patches]; - cur_patch = *start_patch; - - while ((cur_patch < last_patch) && (start_instr == cur_patch->begin)) - { - if (cur_patch->patch_func(p) == 0) - { - /* - * Start rejecting code. - */ - *skip_addr = start_instr + cur_patch->skip_instr; - cur_patch += cur_patch->skip_patch; - } - else - { - /* - * Found an OK patch. Advance the patch pointer to the next patch - * and wait for our instruction pointer to get here. - */ - cur_patch++; - } - } - - *start_patch = cur_patch; - if (start_instr < *skip_addr) - /* - * Still skipping - */ - return (0); - return(1); -} - - -/*+F************************************************************************* - * Function: - * aic7xxx_download_instr - * - * Description: - * Find the next patch to download. - *-F*************************************************************************/ -static void -aic7xxx_download_instr(struct aic7xxx_host *p, int instrptr, - unsigned char *dconsts) -{ - union ins_formats instr; - struct ins_format1 *fmt1_ins; - struct ins_format3 *fmt3_ins; - unsigned char opcode; - - instr = *(union ins_formats*) &seqprog[instrptr * 4]; - - instr.integer = le32_to_cpu(instr.integer); - - fmt1_ins = &instr.format1; - fmt3_ins = NULL; - - /* Pull the opcode */ - opcode = instr.format1.opcode; - switch (opcode) - { - case AIC_OP_JMP: - case AIC_OP_JC: - case AIC_OP_JNC: - case AIC_OP_CALL: - case AIC_OP_JNE: - case AIC_OP_JNZ: - case AIC_OP_JE: - case AIC_OP_JZ: - { - struct sequencer_patch *cur_patch; - int address_offset; - unsigned int address; - int skip_addr; - int i; - - fmt3_ins = &instr.format3; - address_offset = 0; - address = fmt3_ins->address; - cur_patch = sequencer_patches; - skip_addr = 0; - - for (i = 0; i < address;) - { - aic7xxx_check_patch(p, &cur_patch, i, &skip_addr); - if (skip_addr > i) - { - int end_addr; - - end_addr = min_t(int, address, skip_addr); - address_offset += end_addr - i; - i = skip_addr; - } - else - { - i++; - } - } - address -= address_offset; - fmt3_ins->address = address; - /* Fall Through to the next code section */ - } - case AIC_OP_OR: - case AIC_OP_AND: - case AIC_OP_XOR: - case AIC_OP_ADD: - case AIC_OP_ADC: - case AIC_OP_BMOV: - if (fmt1_ins->parity != 0) - { - fmt1_ins->immediate = dconsts[fmt1_ins->immediate]; - } - fmt1_ins->parity = 0; - /* Fall Through to the next code section */ - case AIC_OP_ROL: - if ((p->features & AHC_ULTRA2) != 0) - { - int i, count; - - /* Calculate odd parity for the instruction */ - for ( i=0, count=0; i < 31; i++) - { - unsigned int mask; - - mask = 0x01 << i; - if ((instr.integer & mask) != 0) - count++; - } - if (!(count & 0x01)) - instr.format1.parity = 1; - } - else - { - if (fmt3_ins != NULL) - { - instr.integer = fmt3_ins->immediate | - (fmt3_ins->source << 8) | - (fmt3_ins->address << 16) | - (fmt3_ins->opcode << 25); - } - else - { - instr.integer = fmt1_ins->immediate | - (fmt1_ins->source << 8) | - (fmt1_ins->destination << 16) | - (fmt1_ins->ret << 24) | - (fmt1_ins->opcode << 25); - } - } - aic_outb(p, (instr.integer & 0xff), SEQRAM); - aic_outb(p, ((instr.integer >> 8) & 0xff), SEQRAM); - aic_outb(p, ((instr.integer >> 16) & 0xff), SEQRAM); - aic_outb(p, ((instr.integer >> 24) & 0xff), SEQRAM); - udelay(10); - break; - - default: - panic("aic7xxx: Unknown opcode encountered in sequencer program."); - break; - } -} - - -/*+F************************************************************************* - * Function: - * aic7xxx_loadseq - * - * Description: - * Load the sequencer code into the controller memory. - *-F*************************************************************************/ -static void -aic7xxx_loadseq(struct aic7xxx_host *p) -{ - struct sequencer_patch *cur_patch; - int i; - int downloaded; - int skip_addr; - unsigned char download_consts[4] = {0, 0, 0, 0}; - - if (aic7xxx_verbose & VERBOSE_PROBE) - { - printk(KERN_INFO "(scsi%d) Downloading sequencer code...", p->host_no); - } -#if 0 - download_consts[TMODE_NUMCMDS] = p->num_targetcmds; -#endif - download_consts[TMODE_NUMCMDS] = 0; - cur_patch = &sequencer_patches[0]; - downloaded = 0; - skip_addr = 0; - - aic_outb(p, PERRORDIS|LOADRAM|FAILDIS|FASTMODE, SEQCTL); - aic_outb(p, 0, SEQADDR0); - aic_outb(p, 0, SEQADDR1); - - for (i = 0; i < sizeof(seqprog) / 4; i++) - { - if (aic7xxx_check_patch(p, &cur_patch, i, &skip_addr) == 0) - { - /* Skip this instruction for this configuration. */ - continue; - } - aic7xxx_download_instr(p, i, &download_consts[0]); - downloaded++; - } - - aic_outb(p, 0, SEQADDR0); - aic_outb(p, 0, SEQADDR1); - aic_outb(p, FASTMODE | FAILDIS, SEQCTL); - unpause_sequencer(p, TRUE); - mdelay(1); - pause_sequencer(p); - aic_outb(p, FASTMODE, SEQCTL); - if (aic7xxx_verbose & VERBOSE_PROBE) - { - printk(" %d instructions downloaded\n", downloaded); - } - if (aic7xxx_dump_sequencer) - aic7xxx_print_sequencer(p, downloaded); -} - -/*+F************************************************************************* - * Function: - * aic7xxx_print_sequencer - * - * Description: - * Print the contents of the sequencer memory to the screen. - *-F*************************************************************************/ -static void -aic7xxx_print_sequencer(struct aic7xxx_host *p, int downloaded) -{ - int i, k, temp; - - aic_outb(p, PERRORDIS|LOADRAM|FAILDIS|FASTMODE, SEQCTL); - aic_outb(p, 0, SEQADDR0); - aic_outb(p, 0, SEQADDR1); - - k = 0; - for (i=0; i < downloaded; i++) - { - if ( k == 0 ) - printk("%03x: ", i); - temp = aic_inb(p, SEQRAM); - temp |= (aic_inb(p, SEQRAM) << 8); - temp |= (aic_inb(p, SEQRAM) << 16); - temp |= (aic_inb(p, SEQRAM) << 24); - printk("%08x", temp); - if ( ++k == 8 ) - { - printk("\n"); - k = 0; - } - else - printk(" "); - } - aic_outb(p, 0, SEQADDR0); - aic_outb(p, 0, SEQADDR1); - aic_outb(p, FASTMODE | FAILDIS, SEQCTL); - unpause_sequencer(p, TRUE); - mdelay(1); - pause_sequencer(p); - aic_outb(p, FASTMODE, SEQCTL); - printk("\n"); -} - -/*+F************************************************************************* - * Function: - * aic7xxx_info - * - * Description: - * Return a string describing the driver. - *-F*************************************************************************/ -static const char * -aic7xxx_info(struct Scsi_Host *dooh) -{ - static char buffer[256]; - char *bp; - struct aic7xxx_host *p; - - bp = &buffer[0]; - p = (struct aic7xxx_host *)dooh->hostdata; - memset(bp, 0, sizeof(buffer)); - strcpy(bp, "Adaptec AHA274x/284x/294x (EISA/VLB/PCI-Fast SCSI) "); - strcat(bp, AIC7XXX_C_VERSION); - strcat(bp, "/"); - strcat(bp, AIC7XXX_H_VERSION); - strcat(bp, "\n"); - strcat(bp, " <"); - strcat(bp, board_names[p->board_name_index]); - strcat(bp, ">"); - - return(bp); -} - -/*+F************************************************************************* - * Function: - * aic7xxx_find_syncrate - * - * Description: - * Look up the valid period to SCSIRATE conversion in our table - *-F*************************************************************************/ -static struct aic7xxx_syncrate * -aic7xxx_find_syncrate(struct aic7xxx_host *p, unsigned int *period, - unsigned int maxsync, unsigned char *options) -{ - struct aic7xxx_syncrate *syncrate; - int done = FALSE; - - switch(*options) - { - case MSG_EXT_PPR_OPTION_DT_CRC: - case MSG_EXT_PPR_OPTION_DT_UNITS: - if(!(p->features & AHC_ULTRA3)) - { - *options = 0; - maxsync = max_t(unsigned int, maxsync, AHC_SYNCRATE_ULTRA2); - } - break; - case MSG_EXT_PPR_OPTION_DT_CRC_QUICK: - case MSG_EXT_PPR_OPTION_DT_UNITS_QUICK: - if(!(p->features & AHC_ULTRA3)) - { - *options = 0; - maxsync = max_t(unsigned int, maxsync, AHC_SYNCRATE_ULTRA2); - } - else - { - /* - * we don't support the Quick Arbitration variants of dual edge - * clocking. As it turns out, we want to send back the - * same basic option, but without the QA attribute. - * We know that we are responding because we would never set - * these options ourself, we would only respond to them. - */ - switch(*options) - { - case MSG_EXT_PPR_OPTION_DT_CRC_QUICK: - *options = MSG_EXT_PPR_OPTION_DT_CRC; - break; - case MSG_EXT_PPR_OPTION_DT_UNITS_QUICK: - *options = MSG_EXT_PPR_OPTION_DT_UNITS; - break; - } - } - break; - default: - *options = 0; - maxsync = max_t(unsigned int, maxsync, AHC_SYNCRATE_ULTRA2); - break; - } - syncrate = &aic7xxx_syncrates[maxsync]; - while ( (syncrate->rate[0] != NULL) && - (!(p->features & AHC_ULTRA2) || syncrate->sxfr_ultra2) ) - { - if (*period <= syncrate->period) - { - switch(*options) - { - case MSG_EXT_PPR_OPTION_DT_CRC: - case MSG_EXT_PPR_OPTION_DT_UNITS: - if(!(syncrate->sxfr_ultra2 & AHC_SYNCRATE_CRC)) - { - done = TRUE; - /* - * oops, we went too low for the CRC/DualEdge signalling, so - * clear the options byte - */ - *options = 0; - /* - * We'll be sending a reply to this packet to set the options - * properly, so unilaterally set the period as well. - */ - *period = syncrate->period; - } - else - { - done = TRUE; - if(syncrate == &aic7xxx_syncrates[maxsync]) - { - *period = syncrate->period; - } - } - break; - default: - if(!(syncrate->sxfr_ultra2 & AHC_SYNCRATE_CRC)) - { - done = TRUE; - if(syncrate == &aic7xxx_syncrates[maxsync]) - { - *period = syncrate->period; - } - } - break; - } - if(done) - { - break; - } - } - syncrate++; - } - if ( (*period == 0) || (syncrate->rate[0] == NULL) || - ((p->features & AHC_ULTRA2) && (syncrate->sxfr_ultra2 == 0)) ) - { - /* - * Use async transfers for this target - */ - *options = 0; - *period = 255; - syncrate = NULL; - } - return (syncrate); -} - - -/*+F************************************************************************* - * Function: - * aic7xxx_find_period - * - * Description: - * Look up the valid SCSIRATE to period conversion in our table - *-F*************************************************************************/ -static unsigned int -aic7xxx_find_period(struct aic7xxx_host *p, unsigned int scsirate, - unsigned int maxsync) -{ - struct aic7xxx_syncrate *syncrate; - - if (p->features & AHC_ULTRA2) - { - scsirate &= SXFR_ULTRA2; - } - else - { - scsirate &= SXFR; - } - - syncrate = &aic7xxx_syncrates[maxsync]; - while (syncrate->rate[0] != NULL) - { - if (p->features & AHC_ULTRA2) - { - if (syncrate->sxfr_ultra2 == 0) - break; - else if (scsirate == syncrate->sxfr_ultra2) - return (syncrate->period); - else if (scsirate == (syncrate->sxfr_ultra2 & ~AHC_SYNCRATE_CRC)) - return (syncrate->period); - } - else if (scsirate == (syncrate->sxfr & ~ULTRA_SXFR)) - { - return (syncrate->period); - } - syncrate++; - } - return (0); /* async */ -} - -/*+F************************************************************************* - * Function: - * aic7xxx_validate_offset - * - * Description: - * Set a valid offset value for a particular card in use and transfer - * settings in use. - *-F*************************************************************************/ -static void -aic7xxx_validate_offset(struct aic7xxx_host *p, - struct aic7xxx_syncrate *syncrate, unsigned int *offset, int wide) -{ - unsigned int maxoffset; - - /* Limit offset to what the card (and device) can do */ - if (syncrate == NULL) - { - maxoffset = 0; - } - else if (p->features & AHC_ULTRA2) - { - maxoffset = MAX_OFFSET_ULTRA2; - } - else - { - if (wide) - maxoffset = MAX_OFFSET_16BIT; - else - maxoffset = MAX_OFFSET_8BIT; - } - *offset = min(*offset, maxoffset); -} - -/*+F************************************************************************* - * Function: - * aic7xxx_set_syncrate - * - * Description: - * Set the actual syncrate down in the card and in our host structs - *-F*************************************************************************/ -static void -aic7xxx_set_syncrate(struct aic7xxx_host *p, struct aic7xxx_syncrate *syncrate, - int target, int channel, unsigned int period, unsigned int offset, - unsigned char options, unsigned int type, struct aic_dev_data *aic_dev) -{ - unsigned char tindex; - unsigned short target_mask; - unsigned char lun, old_options; - unsigned int old_period, old_offset; - - tindex = target | (channel << 3); - target_mask = 0x01 << tindex; - lun = aic_inb(p, SCB_TCL) & 0x07; - - if (syncrate == NULL) - { - period = 0; - offset = 0; - } - - old_period = aic_dev->cur.period; - old_offset = aic_dev->cur.offset; - old_options = aic_dev->cur.options; - - - if (type & AHC_TRANS_CUR) - { - unsigned int scsirate; - - scsirate = aic_inb(p, TARG_SCSIRATE + tindex); - if (p->features & AHC_ULTRA2) - { - scsirate &= ~SXFR_ULTRA2; - if (syncrate != NULL) - { - switch(options) - { - case MSG_EXT_PPR_OPTION_DT_UNITS: - /* - * mask off the CRC bit in the xfer settings - */ - scsirate |= (syncrate->sxfr_ultra2 & ~AHC_SYNCRATE_CRC); - break; - default: - scsirate |= syncrate->sxfr_ultra2; - break; - } - } - if (type & AHC_TRANS_ACTIVE) - { - aic_outb(p, offset, SCSIOFFSET); - } - aic_outb(p, offset, TARG_OFFSET + tindex); - } - else /* Not an Ultra2 controller */ - { - scsirate &= ~(SXFR|SOFS); - p->ultraenb &= ~target_mask; - if (syncrate != NULL) - { - if (syncrate->sxfr & ULTRA_SXFR) - { - p->ultraenb |= target_mask; - } - scsirate |= (syncrate->sxfr & SXFR); - scsirate |= (offset & SOFS); - } - if (type & AHC_TRANS_ACTIVE) - { - unsigned char sxfrctl0; - - sxfrctl0 = aic_inb(p, SXFRCTL0); - sxfrctl0 &= ~FAST20; - if (p->ultraenb & target_mask) - sxfrctl0 |= FAST20; - aic_outb(p, sxfrctl0, SXFRCTL0); - } - aic_outb(p, p->ultraenb & 0xff, ULTRA_ENB); - aic_outb(p, (p->ultraenb >> 8) & 0xff, ULTRA_ENB + 1 ); - } - if (type & AHC_TRANS_ACTIVE) - { - aic_outb(p, scsirate, SCSIRATE); - } - aic_outb(p, scsirate, TARG_SCSIRATE + tindex); - aic_dev->cur.period = period; - aic_dev->cur.offset = offset; - aic_dev->cur.options = options; - if ( !(type & AHC_TRANS_QUITE) && - (aic7xxx_verbose & VERBOSE_NEGOTIATION) && - (aic_dev->flags & DEVICE_PRINT_DTR) ) - { - if (offset) - { - int rate_mod = (scsirate & WIDEXFER) ? 1 : 0; - - printk(INFO_LEAD "Synchronous at %s Mbyte/sec, " - "offset %d.\n", p->host_no, channel, target, lun, - syncrate->rate[rate_mod], offset); - } - else - { - printk(INFO_LEAD "Using asynchronous transfers.\n", - p->host_no, channel, target, lun); - } - aic_dev->flags &= ~DEVICE_PRINT_DTR; - } - } - - if (type & AHC_TRANS_GOAL) - { - aic_dev->goal.period = period; - aic_dev->goal.offset = offset; - aic_dev->goal.options = options; - } - - if (type & AHC_TRANS_USER) - { - p->user[tindex].period = period; - p->user[tindex].offset = offset; - p->user[tindex].options = options; - } -} - -/*+F************************************************************************* - * Function: - * aic7xxx_set_width - * - * Description: - * Set the actual width down in the card and in our host structs - *-F*************************************************************************/ -static void -aic7xxx_set_width(struct aic7xxx_host *p, int target, int channel, int lun, - unsigned int width, unsigned int type, struct aic_dev_data *aic_dev) -{ - unsigned char tindex; - unsigned short target_mask; - unsigned int old_width; - - tindex = target | (channel << 3); - target_mask = 1 << tindex; - - old_width = aic_dev->cur.width; - - if (type & AHC_TRANS_CUR) - { - unsigned char scsirate; - - scsirate = aic_inb(p, TARG_SCSIRATE + tindex); - - scsirate &= ~WIDEXFER; - if (width == MSG_EXT_WDTR_BUS_16_BIT) - scsirate |= WIDEXFER; - - aic_outb(p, scsirate, TARG_SCSIRATE + tindex); - - if (type & AHC_TRANS_ACTIVE) - aic_outb(p, scsirate, SCSIRATE); - - aic_dev->cur.width = width; - - if ( !(type & AHC_TRANS_QUITE) && - (aic7xxx_verbose & VERBOSE_NEGOTIATION2) && - (aic_dev->flags & DEVICE_PRINT_DTR) ) - { - printk(INFO_LEAD "Using %s transfers\n", p->host_no, channel, target, - lun, (scsirate & WIDEXFER) ? "Wide(16bit)" : "Narrow(8bit)" ); - } - } - - if (type & AHC_TRANS_GOAL) - aic_dev->goal.width = width; - if (type & AHC_TRANS_USER) - p->user[tindex].width = width; - - if (aic_dev->goal.offset) - { - if (p->features & AHC_ULTRA2) - { - aic_dev->goal.offset = MAX_OFFSET_ULTRA2; - } - else if (width == MSG_EXT_WDTR_BUS_16_BIT) - { - aic_dev->goal.offset = MAX_OFFSET_16BIT; - } - else - { - aic_dev->goal.offset = MAX_OFFSET_8BIT; - } - } -} - -/*+F************************************************************************* - * Function: - * scbq_init - * - * Description: - * SCB queue initialization. - * - *-F*************************************************************************/ -static void -scbq_init(volatile scb_queue_type *queue) -{ - queue->head = NULL; - queue->tail = NULL; -} - -/*+F************************************************************************* - * Function: - * scbq_insert_head - * - * Description: - * Add an SCB to the head of the list. - * - *-F*************************************************************************/ -static inline void -scbq_insert_head(volatile scb_queue_type *queue, struct aic7xxx_scb *scb) -{ - scb->q_next = queue->head; - queue->head = scb; - if (queue->tail == NULL) /* If list was empty, update tail. */ - queue->tail = queue->head; -} - -/*+F************************************************************************* - * Function: - * scbq_remove_head - * - * Description: - * Remove an SCB from the head of the list. - * - *-F*************************************************************************/ -static inline struct aic7xxx_scb * -scbq_remove_head(volatile scb_queue_type *queue) -{ - struct aic7xxx_scb * scbp; - - scbp = queue->head; - if (queue->head != NULL) - queue->head = queue->head->q_next; - if (queue->head == NULL) /* If list is now empty, update tail. */ - queue->tail = NULL; - return(scbp); -} - -/*+F************************************************************************* - * Function: - * scbq_remove - * - * Description: - * Removes an SCB from the list. - * - *-F*************************************************************************/ -static inline void -scbq_remove(volatile scb_queue_type *queue, struct aic7xxx_scb *scb) -{ - if (queue->head == scb) - { - /* At beginning of queue, remove from head. */ - scbq_remove_head(queue); - } - else - { - struct aic7xxx_scb *curscb = queue->head; - - /* - * Search until the next scb is the one we're looking for, or - * we run out of queue. - */ - while ((curscb != NULL) && (curscb->q_next != scb)) - { - curscb = curscb->q_next; - } - if (curscb != NULL) - { - /* Found it. */ - curscb->q_next = scb->q_next; - if (scb->q_next == NULL) - { - /* Update the tail when removing the tail. */ - queue->tail = curscb; - } - } - } -} - -/*+F************************************************************************* - * Function: - * scbq_insert_tail - * - * Description: - * Add an SCB at the tail of the list. - * - *-F*************************************************************************/ -static inline void -scbq_insert_tail(volatile scb_queue_type *queue, struct aic7xxx_scb *scb) -{ - scb->q_next = NULL; - if (queue->tail != NULL) /* Add the scb at the end of the list. */ - queue->tail->q_next = scb; - queue->tail = scb; /* Update the tail. */ - if (queue->head == NULL) /* If list was empty, update head. */ - queue->head = queue->tail; -} - -/*+F************************************************************************* - * Function: - * aic7xxx_match_scb - * - * Description: - * Checks to see if an scb matches the target/channel as specified. - * If target is ALL_TARGETS (-1), then we're looking for any device - * on the specified channel; this happens when a channel is going - * to be reset and all devices on that channel must be aborted. - *-F*************************************************************************/ -static int -aic7xxx_match_scb(struct aic7xxx_host *p, struct aic7xxx_scb *scb, - int target, int channel, int lun, unsigned char tag) -{ - int targ = (scb->hscb->target_channel_lun >> 4) & 0x0F; - int chan = (scb->hscb->target_channel_lun >> 3) & 0x01; - int slun = scb->hscb->target_channel_lun & 0x07; - int match; - - match = ((chan == channel) || (channel == ALL_CHANNELS)); - if (match != 0) - match = ((targ == target) || (target == ALL_TARGETS)); - if (match != 0) - match = ((lun == slun) || (lun == ALL_LUNS)); - if (match != 0) - match = ((tag == scb->hscb->tag) || (tag == SCB_LIST_NULL)); - - return (match); -} - -/*+F************************************************************************* - * Function: - * aic7xxx_add_curscb_to_free_list - * - * Description: - * Adds the current scb (in SCBPTR) to the list of free SCBs. - *-F*************************************************************************/ -static void -aic7xxx_add_curscb_to_free_list(struct aic7xxx_host *p) -{ - /* - * Invalidate the tag so that aic7xxx_find_scb doesn't think - * it's active - */ - aic_outb(p, SCB_LIST_NULL, SCB_TAG); - aic_outb(p, 0, SCB_CONTROL); - - aic_outb(p, aic_inb(p, FREE_SCBH), SCB_NEXT); - aic_outb(p, aic_inb(p, SCBPTR), FREE_SCBH); -} - -/*+F************************************************************************* - * Function: - * aic7xxx_rem_scb_from_disc_list - * - * Description: - * Removes the current SCB from the disconnected list and adds it - * to the free list. - *-F*************************************************************************/ -static unsigned char -aic7xxx_rem_scb_from_disc_list(struct aic7xxx_host *p, unsigned char scbptr, - unsigned char prev) -{ - unsigned char next; - - aic_outb(p, scbptr, SCBPTR); - next = aic_inb(p, SCB_NEXT); - aic7xxx_add_curscb_to_free_list(p); - - if (prev != SCB_LIST_NULL) - { - aic_outb(p, prev, SCBPTR); - aic_outb(p, next, SCB_NEXT); - } - else - { - aic_outb(p, next, DISCONNECTED_SCBH); - } - - return next; -} - -/*+F************************************************************************* - * Function: - * aic7xxx_busy_target - * - * Description: - * Set the specified target busy. - *-F*************************************************************************/ -static inline void -aic7xxx_busy_target(struct aic7xxx_host *p, struct aic7xxx_scb *scb) -{ - p->untagged_scbs[scb->hscb->target_channel_lun] = scb->hscb->tag; -} - -/*+F************************************************************************* - * Function: - * aic7xxx_index_busy_target - * - * Description: - * Returns the index of the busy target, and optionally sets the - * target inactive. - *-F*************************************************************************/ -static inline unsigned char -aic7xxx_index_busy_target(struct aic7xxx_host *p, unsigned char tcl, - int unbusy) -{ - unsigned char busy_scbid; - - busy_scbid = p->untagged_scbs[tcl]; - if (unbusy) - { - p->untagged_scbs[tcl] = SCB_LIST_NULL; - } - return (busy_scbid); -} - -/*+F************************************************************************* - * Function: - * aic7xxx_find_scb - * - * Description: - * Look through the SCB array of the card and attempt to find the - * hardware SCB that corresponds to the passed in SCB. Return - * SCB_LIST_NULL if unsuccessful. This routine assumes that the - * card is already paused. - *-F*************************************************************************/ -static unsigned char -aic7xxx_find_scb(struct aic7xxx_host *p, struct aic7xxx_scb *scb) -{ - unsigned char saved_scbptr; - unsigned char curindex; - - saved_scbptr = aic_inb(p, SCBPTR); - curindex = 0; - for (curindex = 0; curindex < p->scb_data->maxhscbs; curindex++) - { - aic_outb(p, curindex, SCBPTR); - if (aic_inb(p, SCB_TAG) == scb->hscb->tag) - { - break; - } - } - aic_outb(p, saved_scbptr, SCBPTR); - if (curindex >= p->scb_data->maxhscbs) - { - curindex = SCB_LIST_NULL; - } - - return (curindex); -} - -/*+F************************************************************************* - * Function: - * aic7xxx_allocate_scb - * - * Description: - * Get an SCB from the free list or by allocating a new one. - *-F*************************************************************************/ -static int -aic7xxx_allocate_scb(struct aic7xxx_host *p) -{ - struct aic7xxx_scb *scbp = NULL; - int scb_size = (sizeof (struct hw_scatterlist) * AIC7XXX_MAX_SG) + 12 + 6; - int i; - int step = PAGE_SIZE / 1024; - unsigned long scb_count = 0; - struct hw_scatterlist *hsgp; - struct aic7xxx_scb *scb_ap; - struct aic7xxx_scb_dma *scb_dma; - unsigned char *bufs; - - if (p->scb_data->numscbs < p->scb_data->maxscbs) - { - /* - * Calculate the optimal number of SCBs to allocate. - * - * NOTE: This formula works because the sizeof(sg_array) is always - * 1024. Therefore, scb_size * i would always be > PAGE_SIZE * - * (i/step). The (i-1) allows the left hand side of the equation - * to grow into the right hand side to a point of near perfect - * efficiency since scb_size * (i -1) is growing slightly faster - * than the right hand side. If the number of SG array elements - * is changed, this function may not be near so efficient any more. - * - * Since the DMA'able buffers are now allocated in a separate - * chunk this algorithm has been modified to match. The '12' - * and '6' factors in scb_size are for the DMA'able command byte - * and sensebuffers respectively. -DaveM - */ - for ( i=step;; i *= 2 ) - { - if ( (scb_size * (i-1)) >= ( (PAGE_SIZE * (i/step)) - 64 ) ) - { - i /= 2; - break; - } - } - scb_count = min( (i-1), p->scb_data->maxscbs - p->scb_data->numscbs); - scb_ap = kmalloc(sizeof (struct aic7xxx_scb) * scb_count - + sizeof(struct aic7xxx_scb_dma), GFP_ATOMIC); - if (scb_ap == NULL) - return(0); - scb_dma = (struct aic7xxx_scb_dma *)&scb_ap[scb_count]; - hsgp = (struct hw_scatterlist *) - pci_alloc_consistent(p->pdev, scb_size * scb_count, - &scb_dma->dma_address); - if (hsgp == NULL) - { - kfree(scb_ap); - return(0); - } - bufs = (unsigned char *)&hsgp[scb_count * AIC7XXX_MAX_SG]; -#ifdef AIC7XXX_VERBOSE_DEBUGGING - if (aic7xxx_verbose > 0xffff) - { - if (p->scb_data->numscbs == 0) - printk(INFO_LEAD "Allocating initial %ld SCB structures.\n", - p->host_no, -1, -1, -1, scb_count); - else - printk(INFO_LEAD "Allocating %ld additional SCB structures.\n", - p->host_no, -1, -1, -1, scb_count); - } -#endif - memset(scb_ap, 0, sizeof (struct aic7xxx_scb) * scb_count); - scb_dma->dma_offset = (unsigned long)scb_dma->dma_address - - (unsigned long)hsgp; - scb_dma->dma_len = scb_size * scb_count; - for (i=0; i < scb_count; i++) - { - scbp = &scb_ap[i]; - scbp->hscb = &p->scb_data->hscbs[p->scb_data->numscbs]; - scbp->sg_list = &hsgp[i * AIC7XXX_MAX_SG]; - scbp->sense_cmd = bufs; - scbp->cmnd = bufs + 6; - bufs += 12 + 6; - scbp->scb_dma = scb_dma; - memset(scbp->hscb, 0, sizeof(struct aic7xxx_hwscb)); - scbp->hscb->tag = p->scb_data->numscbs; - /* - * Place in the scb array; never is removed - */ - p->scb_data->scb_array[p->scb_data->numscbs++] = scbp; - scbq_insert_tail(&p->scb_data->free_scbs, scbp); - } - scbp->kmalloc_ptr = scb_ap; - } - return(scb_count); -} - -/*+F************************************************************************* - * Function: - * aic7xxx_queue_cmd_complete - * - * Description: - * Due to race conditions present in the SCSI subsystem, it is easier - * to queue completed commands, then call scsi_done() on them when - * we're finished. This function queues the completed commands. - *-F*************************************************************************/ -static void -aic7xxx_queue_cmd_complete(struct aic7xxx_host *p, struct scsi_cmnd *cmd) -{ - aic7xxx_position(cmd) = SCB_LIST_NULL; - cmd->host_scribble = (char *)p->completeq.head; - p->completeq.head = cmd; -} - -/*+F************************************************************************* - * Function: - * aic7xxx_done_cmds_complete - * - * Description: - * Process the completed command queue. - *-F*************************************************************************/ -static void aic7xxx_done_cmds_complete(struct aic7xxx_host *p) -{ - struct scsi_cmnd *cmd; - - while (p->completeq.head != NULL) { - cmd = p->completeq.head; - p->completeq.head = (struct scsi_cmnd *) cmd->host_scribble; - cmd->host_scribble = NULL; - cmd->scsi_done(cmd); - } -} - -/*+F************************************************************************* - * Function: - * aic7xxx_free_scb - * - * Description: - * Free the scb and insert into the free scb list. - *-F*************************************************************************/ -static void -aic7xxx_free_scb(struct aic7xxx_host *p, struct aic7xxx_scb *scb) -{ - - scb->flags = SCB_FREE; - scb->cmd = NULL; - scb->sg_count = 0; - scb->sg_length = 0; - scb->tag_action = 0; - scb->hscb->control = 0; - scb->hscb->target_status = 0; - scb->hscb->target_channel_lun = SCB_LIST_NULL; - - scbq_insert_head(&p->scb_data->free_scbs, scb); -} - -/*+F************************************************************************* - * Function: - * aic7xxx_done - * - * Description: - * Calls the higher level scsi done function and frees the scb. - *-F*************************************************************************/ -static void -aic7xxx_done(struct aic7xxx_host *p, struct aic7xxx_scb *scb) -{ - struct scsi_cmnd *cmd = scb->cmd; - struct aic_dev_data *aic_dev = cmd->device->hostdata; - int tindex = TARGET_INDEX(cmd); - struct aic7xxx_scb *scbp; - unsigned char queue_depth; - - scsi_dma_unmap(cmd); - - if (scb->flags & SCB_SENSE) - { - pci_unmap_single(p->pdev, - le32_to_cpu(scb->sg_list[0].address), - SCSI_SENSE_BUFFERSIZE, - PCI_DMA_FROMDEVICE); - } - if (scb->flags & SCB_RECOVERY_SCB) - { - p->flags &= ~AHC_ABORT_PENDING; - } - if (scb->flags & (SCB_RESET|SCB_ABORT)) - { - cmd->result |= (DID_RESET << 16); - } - - if ((scb->flags & SCB_MSGOUT_BITS) != 0) - { - unsigned short mask; - int message_error = FALSE; - - mask = 0x01 << tindex; - - /* - * Check to see if we get an invalid message or a message error - * after failing to negotiate a wide or sync transfer message. - */ - if ((scb->flags & SCB_SENSE) && - ((scb->cmd->sense_buffer[12] == 0x43) || /* INVALID_MESSAGE */ - (scb->cmd->sense_buffer[12] == 0x49))) /* MESSAGE_ERROR */ - { - message_error = TRUE; - } - - if (scb->flags & SCB_MSGOUT_WDTR) - { - if (message_error) - { - if ( (aic7xxx_verbose & VERBOSE_NEGOTIATION2) && - (aic_dev->flags & DEVICE_PRINT_DTR) ) - { - printk(INFO_LEAD "Device failed to complete Wide Negotiation " - "processing and\n", p->host_no, CTL_OF_SCB(scb)); - printk(INFO_LEAD "returned a sense error code for invalid message, " - "disabling future\n", p->host_no, CTL_OF_SCB(scb)); - printk(INFO_LEAD "Wide negotiation to this device.\n", p->host_no, - CTL_OF_SCB(scb)); - } - aic_dev->needwdtr = aic_dev->needwdtr_copy = 0; - } - } - if (scb->flags & SCB_MSGOUT_SDTR) - { - if (message_error) - { - if ( (aic7xxx_verbose & VERBOSE_NEGOTIATION2) && - (aic_dev->flags & DEVICE_PRINT_DTR) ) - { - printk(INFO_LEAD "Device failed to complete Sync Negotiation " - "processing and\n", p->host_no, CTL_OF_SCB(scb)); - printk(INFO_LEAD "returned a sense error code for invalid message, " - "disabling future\n", p->host_no, CTL_OF_SCB(scb)); - printk(INFO_LEAD "Sync negotiation to this device.\n", p->host_no, - CTL_OF_SCB(scb)); - aic_dev->flags &= ~DEVICE_PRINT_DTR; - } - aic_dev->needsdtr = aic_dev->needsdtr_copy = 0; - } - } - if (scb->flags & SCB_MSGOUT_PPR) - { - if(message_error) - { - if ( (aic7xxx_verbose & VERBOSE_NEGOTIATION2) && - (aic_dev->flags & DEVICE_PRINT_DTR) ) - { - printk(INFO_LEAD "Device failed to complete Parallel Protocol " - "Request processing and\n", p->host_no, CTL_OF_SCB(scb)); - printk(INFO_LEAD "returned a sense error code for invalid message, " - "disabling future\n", p->host_no, CTL_OF_SCB(scb)); - printk(INFO_LEAD "Parallel Protocol Request negotiation to this " - "device.\n", p->host_no, CTL_OF_SCB(scb)); - } - /* - * Disable PPR negotiation and revert back to WDTR and SDTR setup - */ - aic_dev->needppr = aic_dev->needppr_copy = 0; - aic_dev->needsdtr = aic_dev->needsdtr_copy = 1; - aic_dev->needwdtr = aic_dev->needwdtr_copy = 1; - } - } - } - - queue_depth = aic_dev->temp_q_depth; - if (queue_depth >= aic_dev->active_cmds) - { - scbp = scbq_remove_head(&aic_dev->delayed_scbs); - if (scbp) - { - if (queue_depth == 1) - { - /* - * Give extra preference to untagged devices, such as CD-R devices - * This makes it more likely that a drive *won't* stuff up while - * waiting on data at a critical time, such as CD-R writing and - * audio CD ripping operations. Should also benefit tape drives. - */ - scbq_insert_head(&p->waiting_scbs, scbp); - } - else - { - scbq_insert_tail(&p->waiting_scbs, scbp); - } -#ifdef AIC7XXX_VERBOSE_DEBUGGING - if (aic7xxx_verbose > 0xffff) - printk(INFO_LEAD "Moving SCB from delayed to waiting queue.\n", - p->host_no, CTL_OF_SCB(scbp)); -#endif - if (queue_depth > aic_dev->active_cmds) - { - scbp = scbq_remove_head(&aic_dev->delayed_scbs); - if (scbp) - scbq_insert_tail(&p->waiting_scbs, scbp); - } - } - } - if (!(scb->tag_action)) - { - aic7xxx_index_busy_target(p, scb->hscb->target_channel_lun, - /* unbusy */ TRUE); - if (cmd->device->simple_tags) - { - aic_dev->temp_q_depth = aic_dev->max_q_depth; - } - } - if(scb->flags & SCB_DTR_SCB) - { - aic_dev->dtr_pending = 0; - } - aic_dev->active_cmds--; - p->activescbs--; - - if ((scb->sg_length >= 512) && (((cmd->result >> 16) & 0xf) == DID_OK)) - { - long *ptr; - int x, i; - - - if (rq_data_dir(cmd->request) == WRITE) - { - aic_dev->w_total++; - ptr = aic_dev->w_bins; - } - else - { - aic_dev->r_total++; - ptr = aic_dev->r_bins; - } - x = scb->sg_length; - x >>= 10; - for(i=0; i<6; i++) - { - x >>= 2; - if(!x) { - ptr[i]++; - break; - } - } - if(i == 6 && x) - ptr[5]++; - } - aic7xxx_free_scb(p, scb); - aic7xxx_queue_cmd_complete(p, cmd); - -} - -/*+F************************************************************************* - * Function: - * aic7xxx_run_done_queue - * - * Description: - * Calls the aic7xxx_done() for the scsi_cmnd of each scb in the - * aborted list, and adds each scb to the free list. If complete - * is TRUE, we also process the commands complete list. - *-F*************************************************************************/ -static void -aic7xxx_run_done_queue(struct aic7xxx_host *p, /*complete*/ int complete) -{ - struct aic7xxx_scb *scb; - int i, found = 0; - - for (i = 0; i < p->scb_data->numscbs; i++) - { - scb = p->scb_data->scb_array[i]; - if (scb->flags & SCB_QUEUED_FOR_DONE) - { - if (scb->flags & SCB_QUEUE_FULL) - { - scb->cmd->result = QUEUE_FULL << 1; - } - else - { - if (aic7xxx_verbose & (VERBOSE_ABORT_PROCESS | VERBOSE_RESET_PROCESS)) - printk(INFO_LEAD "Aborting scb %d\n", - p->host_no, CTL_OF_SCB(scb), scb->hscb->tag); - /* - * Clear any residual information since the normal aic7xxx_done() path - * doesn't touch the residuals. - */ - scb->hscb->residual_SG_segment_count = 0; - scb->hscb->residual_data_count[0] = 0; - scb->hscb->residual_data_count[1] = 0; - scb->hscb->residual_data_count[2] = 0; - } - found++; - aic7xxx_done(p, scb); - } - } - if (aic7xxx_verbose & (VERBOSE_ABORT_RETURN | VERBOSE_RESET_RETURN)) - { - printk(INFO_LEAD "%d commands found and queued for " - "completion.\n", p->host_no, -1, -1, -1, found); - } - if (complete) - { - aic7xxx_done_cmds_complete(p); - } -} - -/*+F************************************************************************* - * Function: - * aic7xxx_abort_waiting_scb - * - * Description: - * Manipulate the waiting for selection list and return the - * scb that follows the one that we remove. - *-F*************************************************************************/ -static unsigned char -aic7xxx_abort_waiting_scb(struct aic7xxx_host *p, struct aic7xxx_scb *scb, - unsigned char scbpos, unsigned char prev) -{ - unsigned char curscb, next; - - /* - * Select the SCB we want to abort and pull the next pointer out of it. - */ - curscb = aic_inb(p, SCBPTR); - aic_outb(p, scbpos, SCBPTR); - next = aic_inb(p, SCB_NEXT); - - aic7xxx_add_curscb_to_free_list(p); - - /* - * Update the waiting list - */ - if (prev == SCB_LIST_NULL) - { - /* - * First in the list - */ - aic_outb(p, next, WAITING_SCBH); - } - else - { - /* - * Select the scb that pointed to us and update its next pointer. - */ - aic_outb(p, prev, SCBPTR); - aic_outb(p, next, SCB_NEXT); - } - /* - * Point us back at the original scb position and inform the SCSI - * system that the command has been aborted. - */ - aic_outb(p, curscb, SCBPTR); - return (next); -} - -/*+F************************************************************************* - * Function: - * aic7xxx_search_qinfifo - * - * Description: - * Search the queue-in FIFO for matching SCBs and conditionally - * requeue. Returns the number of matching SCBs. - *-F*************************************************************************/ -static int -aic7xxx_search_qinfifo(struct aic7xxx_host *p, int target, int channel, - int lun, unsigned char tag, int flags, int requeue, - volatile scb_queue_type *queue) -{ - int found; - unsigned char qinpos, qintail; - struct aic7xxx_scb *scbp; - - found = 0; - qinpos = aic_inb(p, QINPOS); - qintail = p->qinfifonext; - - p->qinfifonext = qinpos; - - while (qinpos != qintail) - { - scbp = p->scb_data->scb_array[p->qinfifo[qinpos++]]; - if (aic7xxx_match_scb(p, scbp, target, channel, lun, tag)) - { - /* - * We found an scb that needs to be removed. - */ - if (requeue && (queue != NULL)) - { - if (scbp->flags & SCB_WAITINGQ) - { - scbq_remove(queue, scbp); - scbq_remove(&p->waiting_scbs, scbp); - scbq_remove(&AIC_DEV(scbp->cmd)->delayed_scbs, scbp); - AIC_DEV(scbp->cmd)->active_cmds++; - p->activescbs++; - } - scbq_insert_tail(queue, scbp); - AIC_DEV(scbp->cmd)->active_cmds--; - p->activescbs--; - scbp->flags |= SCB_WAITINGQ; - if ( !(scbp->tag_action & TAG_ENB) ) - { - aic7xxx_index_busy_target(p, scbp->hscb->target_channel_lun, - TRUE); - } - } - else if (requeue) - { - p->qinfifo[p->qinfifonext++] = scbp->hscb->tag; - } - else - { - /* - * Preserve any SCB_RECOVERY_SCB flags on this scb then set the - * flags we were called with, presumeably so aic7xxx_run_done_queue - * can find this scb - */ - scbp->flags = flags | (scbp->flags & SCB_RECOVERY_SCB); - if (aic7xxx_index_busy_target(p, scbp->hscb->target_channel_lun, - FALSE) == scbp->hscb->tag) - { - aic7xxx_index_busy_target(p, scbp->hscb->target_channel_lun, - TRUE); - } - } - found++; - } - else - { - p->qinfifo[p->qinfifonext++] = scbp->hscb->tag; - } - } - /* - * Now that we've done the work, clear out any left over commands in the - * qinfifo and update the KERNEL_QINPOS down on the card. - * - * NOTE: This routine expect the sequencer to already be paused when - * it is run....make sure it's that way! - */ - qinpos = p->qinfifonext; - while(qinpos != qintail) - { - p->qinfifo[qinpos++] = SCB_LIST_NULL; - } - if (p->features & AHC_QUEUE_REGS) - aic_outb(p, p->qinfifonext, HNSCB_QOFF); - else - aic_outb(p, p->qinfifonext, KERNEL_QINPOS); - - return (found); -} - -/*+F************************************************************************* - * Function: - * aic7xxx_scb_on_qoutfifo - * - * Description: - * Is the scb that was passed to us currently on the qoutfifo? - *-F*************************************************************************/ -static int -aic7xxx_scb_on_qoutfifo(struct aic7xxx_host *p, struct aic7xxx_scb *scb) -{ - int i=0; - - while(p->qoutfifo[(p->qoutfifonext + i) & 0xff ] != SCB_LIST_NULL) - { - if(p->qoutfifo[(p->qoutfifonext + i) & 0xff ] == scb->hscb->tag) - return TRUE; - else - i++; - } - return FALSE; -} - - -/*+F************************************************************************* - * Function: - * aic7xxx_reset_device - * - * Description: - * The device at the given target/channel has been reset. Abort - * all active and queued scbs for that target/channel. This function - * need not worry about linked next pointers because if was a MSG_ABORT_TAG - * then we had a tagged command (no linked next), if it was MSG_ABORT or - * MSG_BUS_DEV_RESET then the device won't know about any commands any more - * and no busy commands will exist, and if it was a bus reset, then nothing - * knows about any linked next commands any more. In all cases, we don't - * need to worry about the linked next or busy scb, we just need to clear - * them. - *-F*************************************************************************/ -static void -aic7xxx_reset_device(struct aic7xxx_host *p, int target, int channel, - int lun, unsigned char tag) -{ - struct aic7xxx_scb *scbp, *prev_scbp; - struct scsi_device *sd; - unsigned char active_scb, tcl, scb_tag; - int i = 0, init_lists = FALSE; - struct aic_dev_data *aic_dev; - - /* - * Restore this when we're done - */ - active_scb = aic_inb(p, SCBPTR); - scb_tag = aic_inb(p, SCB_TAG); - - if (aic7xxx_verbose & (VERBOSE_RESET_PROCESS | VERBOSE_ABORT_PROCESS)) - { - printk(INFO_LEAD "Reset device, hardware_scb %d,\n", - p->host_no, channel, target, lun, active_scb); - printk(INFO_LEAD "Current scb %d, SEQADDR 0x%x, LASTPHASE " - "0x%x\n", - p->host_no, channel, target, lun, scb_tag, - aic_inb(p, SEQADDR0) | (aic_inb(p, SEQADDR1) << 8), - aic_inb(p, LASTPHASE)); - printk(INFO_LEAD "SG_CACHEPTR 0x%x, SG_COUNT %d, SCSISIGI 0x%x\n", - p->host_no, channel, target, lun, - (p->features & AHC_ULTRA2) ? aic_inb(p, SG_CACHEPTR) : 0, - aic_inb(p, SG_COUNT), aic_inb(p, SCSISIGI)); - printk(INFO_LEAD "SSTAT0 0x%x, SSTAT1 0x%x, SSTAT2 0x%x\n", - p->host_no, channel, target, lun, aic_inb(p, SSTAT0), - aic_inb(p, SSTAT1), aic_inb(p, SSTAT2)); - } - - /* - * Deal with the busy target and linked next issues. - */ - list_for_each_entry(aic_dev, &p->aic_devs, list) - { - if (aic7xxx_verbose & (VERBOSE_RESET_PROCESS | VERBOSE_ABORT_PROCESS)) - printk(INFO_LEAD "processing aic_dev %p\n", p->host_no, channel, target, - lun, aic_dev); - sd = aic_dev->SDptr; - - if((target != ALL_TARGETS && target != sd->id) || - (channel != ALL_CHANNELS && channel != sd->channel)) - continue; - if (aic7xxx_verbose & (VERBOSE_ABORT_PROCESS | VERBOSE_RESET_PROCESS)) - printk(INFO_LEAD "Cleaning up status information " - "and delayed_scbs.\n", p->host_no, sd->channel, sd->id, sd->lun); - aic_dev->flags &= ~BUS_DEVICE_RESET_PENDING; - if ( tag == SCB_LIST_NULL ) - { - aic_dev->dtr_pending = 0; - aic_dev->needppr = aic_dev->needppr_copy; - aic_dev->needsdtr = aic_dev->needsdtr_copy; - aic_dev->needwdtr = aic_dev->needwdtr_copy; - aic_dev->flags = DEVICE_PRINT_DTR; - aic_dev->temp_q_depth = aic_dev->max_q_depth; - } - tcl = (sd->id << 4) | (sd->channel << 3) | sd->lun; - if ( (aic7xxx_index_busy_target(p, tcl, FALSE) == tag) || - (tag == SCB_LIST_NULL) ) - aic7xxx_index_busy_target(p, tcl, /* unbusy */ TRUE); - prev_scbp = NULL; - scbp = aic_dev->delayed_scbs.head; - while (scbp != NULL) - { - prev_scbp = scbp; - scbp = scbp->q_next; - if (aic7xxx_match_scb(p, prev_scbp, target, channel, lun, tag)) - { - scbq_remove(&aic_dev->delayed_scbs, prev_scbp); - if (prev_scbp->flags & SCB_WAITINGQ) - { - aic_dev->active_cmds++; - p->activescbs++; - } - prev_scbp->flags &= ~(SCB_ACTIVE | SCB_WAITINGQ); - prev_scbp->flags |= SCB_RESET | SCB_QUEUED_FOR_DONE; - } - } - } - - if (aic7xxx_verbose & (VERBOSE_ABORT_PROCESS | VERBOSE_RESET_PROCESS)) - printk(INFO_LEAD "Cleaning QINFIFO.\n", p->host_no, channel, target, lun ); - aic7xxx_search_qinfifo(p, target, channel, lun, tag, - SCB_RESET | SCB_QUEUED_FOR_DONE, /* requeue */ FALSE, NULL); - -/* - * Search the waiting_scbs queue for matches, this catches any SCB_QUEUED - * ABORT/RESET commands. - */ - if (aic7xxx_verbose & (VERBOSE_ABORT_PROCESS | VERBOSE_RESET_PROCESS)) - printk(INFO_LEAD "Cleaning waiting_scbs.\n", p->host_no, channel, - target, lun ); - { - struct aic7xxx_scb *scbp, *prev_scbp; - - prev_scbp = NULL; - scbp = p->waiting_scbs.head; - while (scbp != NULL) - { - prev_scbp = scbp; - scbp = scbp->q_next; - if (aic7xxx_match_scb(p, prev_scbp, target, channel, lun, tag)) - { - scbq_remove(&p->waiting_scbs, prev_scbp); - if (prev_scbp->flags & SCB_WAITINGQ) - { - AIC_DEV(prev_scbp->cmd)->active_cmds++; - p->activescbs++; - } - prev_scbp->flags &= ~(SCB_ACTIVE | SCB_WAITINGQ); - prev_scbp->flags |= SCB_RESET | SCB_QUEUED_FOR_DONE; - } - } - } - - - /* - * Search waiting for selection list. - */ - if (aic7xxx_verbose & (VERBOSE_ABORT_PROCESS | VERBOSE_RESET_PROCESS)) - printk(INFO_LEAD "Cleaning waiting for selection " - "list.\n", p->host_no, channel, target, lun); - { - unsigned char next, prev, scb_index; - - next = aic_inb(p, WAITING_SCBH); /* Start at head of list. */ - prev = SCB_LIST_NULL; - while (next != SCB_LIST_NULL) - { - aic_outb(p, next, SCBPTR); - scb_index = aic_inb(p, SCB_TAG); - if (scb_index >= p->scb_data->numscbs) - { - /* - * No aic7xxx_verbose check here.....we want to see this since it - * means either the kernel driver or the sequencer screwed things up - */ - printk(WARN_LEAD "Waiting List inconsistency; SCB index=%d, " - "numscbs=%d\n", p->host_no, channel, target, lun, scb_index, - p->scb_data->numscbs); - next = aic_inb(p, SCB_NEXT); - aic7xxx_add_curscb_to_free_list(p); - } - else - { - scbp = p->scb_data->scb_array[scb_index]; - if (aic7xxx_match_scb(p, scbp, target, channel, lun, tag)) - { - next = aic7xxx_abort_waiting_scb(p, scbp, next, prev); - if (scbp->flags & SCB_WAITINGQ) - { - AIC_DEV(scbp->cmd)->active_cmds++; - p->activescbs++; - } - scbp->flags &= ~(SCB_ACTIVE | SCB_WAITINGQ); - scbp->flags |= SCB_RESET | SCB_QUEUED_FOR_DONE; - if (prev == SCB_LIST_NULL) - { - /* - * This is either the first scb on the waiting list, or we - * have already yanked the first and haven't left any behind. - * Either way, we need to turn off the selection hardware if - * it isn't already off. - */ - aic_outb(p, aic_inb(p, SCSISEQ) & ~ENSELO, SCSISEQ); - aic_outb(p, CLRSELTIMEO, CLRSINT1); - } - } - else - { - prev = next; - next = aic_inb(p, SCB_NEXT); - } - } - } - } - - /* - * Go through disconnected list and remove any entries we have queued - * for completion, zeroing their control byte too. - */ - if (aic7xxx_verbose & (VERBOSE_ABORT_PROCESS | VERBOSE_RESET_PROCESS)) - printk(INFO_LEAD "Cleaning disconnected scbs " - "list.\n", p->host_no, channel, target, lun); - if (p->flags & AHC_PAGESCBS) - { - unsigned char next, prev, scb_index; - - next = aic_inb(p, DISCONNECTED_SCBH); - prev = SCB_LIST_NULL; - while (next != SCB_LIST_NULL) - { - aic_outb(p, next, SCBPTR); - scb_index = aic_inb(p, SCB_TAG); - if (scb_index > p->scb_data->numscbs) - { - printk(WARN_LEAD "Disconnected List inconsistency; SCB index=%d, " - "numscbs=%d\n", p->host_no, channel, target, lun, scb_index, - p->scb_data->numscbs); - next = aic7xxx_rem_scb_from_disc_list(p, next, prev); - } - else - { - scbp = p->scb_data->scb_array[scb_index]; - if (aic7xxx_match_scb(p, scbp, target, channel, lun, tag)) - { - next = aic7xxx_rem_scb_from_disc_list(p, next, prev); - if (scbp->flags & SCB_WAITINGQ) - { - AIC_DEV(scbp->cmd)->active_cmds++; - p->activescbs++; - } - scbp->flags &= ~(SCB_ACTIVE | SCB_WAITINGQ); - scbp->flags |= SCB_RESET | SCB_QUEUED_FOR_DONE; - scbp->hscb->control = 0; - } - else - { - prev = next; - next = aic_inb(p, SCB_NEXT); - } - } - } - } - - /* - * Walk the free list making sure no entries on the free list have - * a valid SCB_TAG value or SCB_CONTROL byte. - */ - if (p->flags & AHC_PAGESCBS) - { - unsigned char next; - - next = aic_inb(p, FREE_SCBH); - while (next != SCB_LIST_NULL) - { - aic_outb(p, next, SCBPTR); - if (aic_inb(p, SCB_TAG) < p->scb_data->numscbs) - { - printk(WARN_LEAD "Free list inconsistency!.\n", p->host_no, channel, - target, lun); - init_lists = TRUE; - next = SCB_LIST_NULL; - } - else - { - aic_outb(p, SCB_LIST_NULL, SCB_TAG); - aic_outb(p, 0, SCB_CONTROL); - next = aic_inb(p, SCB_NEXT); - } - } - } - - /* - * Go through the hardware SCB array looking for commands that - * were active but not on any list. - */ - if (init_lists) - { - aic_outb(p, SCB_LIST_NULL, FREE_SCBH); - aic_outb(p, SCB_LIST_NULL, WAITING_SCBH); - aic_outb(p, SCB_LIST_NULL, DISCONNECTED_SCBH); - } - for (i = p->scb_data->maxhscbs - 1; i >= 0; i--) - { - unsigned char scbid; - - aic_outb(p, i, SCBPTR); - if (init_lists) - { - aic_outb(p, SCB_LIST_NULL, SCB_TAG); - aic_outb(p, SCB_LIST_NULL, SCB_NEXT); - aic_outb(p, 0, SCB_CONTROL); - aic7xxx_add_curscb_to_free_list(p); - } - else - { - scbid = aic_inb(p, SCB_TAG); - if (scbid < p->scb_data->numscbs) - { - scbp = p->scb_data->scb_array[scbid]; - if (aic7xxx_match_scb(p, scbp, target, channel, lun, tag)) - { - aic_outb(p, 0, SCB_CONTROL); - aic_outb(p, SCB_LIST_NULL, SCB_TAG); - aic7xxx_add_curscb_to_free_list(p); - } - } - } - } - - /* - * Go through the entire SCB array now and look for commands for - * for this target that are stillactive. These are other (most likely - * tagged) commands that were disconnected when the reset occurred. - * Any commands we find here we know this about, it wasn't on any queue, - * it wasn't in the qinfifo, it wasn't in the disconnected or waiting - * lists, so it really must have been a paged out SCB. In that case, - * we shouldn't need to bother with updating any counters, just mark - * the correct flags and go on. - */ - for (i = 0; i < p->scb_data->numscbs; i++) - { - scbp = p->scb_data->scb_array[i]; - if ((scbp->flags & SCB_ACTIVE) && - aic7xxx_match_scb(p, scbp, target, channel, lun, tag) && - !aic7xxx_scb_on_qoutfifo(p, scbp)) - { - if (scbp->flags & SCB_WAITINGQ) - { - scbq_remove(&p->waiting_scbs, scbp); - scbq_remove(&AIC_DEV(scbp->cmd)->delayed_scbs, scbp); - AIC_DEV(scbp->cmd)->active_cmds++; - p->activescbs++; - } - scbp->flags |= SCB_RESET | SCB_QUEUED_FOR_DONE; - scbp->flags &= ~(SCB_ACTIVE | SCB_WAITINGQ); - } - } - - aic_outb(p, active_scb, SCBPTR); -} - - -/*+F************************************************************************* - * Function: - * aic7xxx_clear_intstat - * - * Description: - * Clears the interrupt status. - *-F*************************************************************************/ -static void -aic7xxx_clear_intstat(struct aic7xxx_host *p) -{ - /* Clear any interrupt conditions this may have caused. */ - aic_outb(p, CLRSELDO | CLRSELDI | CLRSELINGO, CLRSINT0); - aic_outb(p, CLRSELTIMEO | CLRATNO | CLRSCSIRSTI | CLRBUSFREE | CLRSCSIPERR | - CLRPHASECHG | CLRREQINIT, CLRSINT1); - aic_outb(p, CLRSCSIINT | CLRSEQINT | CLRBRKADRINT | CLRPARERR, CLRINT); -} - -/*+F************************************************************************* - * Function: - * aic7xxx_reset_current_bus - * - * Description: - * Reset the current SCSI bus. - *-F*************************************************************************/ -static void -aic7xxx_reset_current_bus(struct aic7xxx_host *p) -{ - - /* Disable reset interrupts. */ - aic_outb(p, aic_inb(p, SIMODE1) & ~ENSCSIRST, SIMODE1); - - /* Turn off the bus' current operations, after all, we shouldn't have any - * valid commands left to cause a RSELI and SELO once we've tossed the - * bus away with this reset, so we might as well shut down the sequencer - * until the bus is restarted as opposed to saving the current settings - * and restoring them (which makes no sense to me). */ - - /* Turn on the bus reset. */ - aic_outb(p, aic_inb(p, SCSISEQ) | SCSIRSTO, SCSISEQ); - while ( (aic_inb(p, SCSISEQ) & SCSIRSTO) == 0) - mdelay(5); - - /* - * Some of the new Ultra2 chipsets need a longer delay after a chip - * reset than just the init setup creates, so we have to delay here - * before we go into a reset in order to make the chips happy. - */ - if (p->features & AHC_ULTRA2) - mdelay(250); - else - mdelay(50); - - /* Turn off the bus reset. */ - aic_outb(p, 0, SCSISEQ); - mdelay(10); - - aic7xxx_clear_intstat(p); - /* Re-enable reset interrupts. */ - aic_outb(p, aic_inb(p, SIMODE1) | ENSCSIRST, SIMODE1); - -} - -/*+F************************************************************************* - * Function: - * aic7xxx_reset_channel - * - * Description: - * Reset the channel. - *-F*************************************************************************/ -static void -aic7xxx_reset_channel(struct aic7xxx_host *p, int channel, int initiate_reset) -{ - unsigned long offset_min, offset_max; - unsigned char sblkctl; - int cur_channel; - - if (aic7xxx_verbose & VERBOSE_RESET_PROCESS) - printk(INFO_LEAD "Reset channel called, %s initiate reset.\n", - p->host_no, channel, -1, -1, (initiate_reset==TRUE) ? "will" : "won't" ); - - - if (channel == 1) - { - offset_min = 8; - offset_max = 16; - } - else - { - if (p->features & AHC_TWIN) - { - /* Channel A */ - offset_min = 0; - offset_max = 8; - } - else - { - offset_min = 0; - if (p->features & AHC_WIDE) - { - offset_max = 16; - } - else - { - offset_max = 8; - } - } - } - - while (offset_min < offset_max) - { - /* - * Revert to async/narrow transfers until we renegotiate. - */ - aic_outb(p, 0, TARG_SCSIRATE + offset_min); - if (p->features & AHC_ULTRA2) - { - aic_outb(p, 0, TARG_OFFSET + offset_min); - } - offset_min++; - } - - /* - * Reset the bus and unpause/restart the controller - */ - sblkctl = aic_inb(p, SBLKCTL); - if ( (p->chip & AHC_CHIPID_MASK) == AHC_AIC7770 ) - cur_channel = (sblkctl & SELBUSB) >> 3; - else - cur_channel = 0; - if ( (cur_channel != channel) && (p->features & AHC_TWIN) ) - { - /* - * Case 1: Command for another bus is active - */ - if (aic7xxx_verbose & VERBOSE_RESET_PROCESS) - printk(INFO_LEAD "Stealthily resetting idle channel.\n", p->host_no, - channel, -1, -1); - /* - * Stealthily reset the other bus without upsetting the current bus. - */ - aic_outb(p, sblkctl ^ SELBUSB, SBLKCTL); - aic_outb(p, aic_inb(p, SIMODE1) & ~ENBUSFREE, SIMODE1); - if (initiate_reset) - { - aic7xxx_reset_current_bus(p); - } - aic_outb(p, aic_inb(p, SCSISEQ) & (ENSELI|ENRSELI|ENAUTOATNP), SCSISEQ); - aic7xxx_clear_intstat(p); - aic_outb(p, sblkctl, SBLKCTL); - } - else - { - /* - * Case 2: A command from this bus is active or we're idle. - */ - if (aic7xxx_verbose & VERBOSE_RESET_PROCESS) - printk(INFO_LEAD "Resetting currently active channel.\n", p->host_no, - channel, -1, -1); - aic_outb(p, aic_inb(p, SIMODE1) & ~(ENBUSFREE|ENREQINIT), - SIMODE1); - p->flags &= ~AHC_HANDLING_REQINITS; - p->msg_type = MSG_TYPE_NONE; - p->msg_len = 0; - if (initiate_reset) - { - aic7xxx_reset_current_bus(p); - } - aic_outb(p, aic_inb(p, SCSISEQ) & (ENSELI|ENRSELI|ENAUTOATNP), SCSISEQ); - aic7xxx_clear_intstat(p); - } - if (aic7xxx_verbose & VERBOSE_RESET_RETURN) - printk(INFO_LEAD "Channel reset\n", p->host_no, channel, -1, -1); - /* - * Clean up all the state information for the pending transactions - * on this bus. - */ - aic7xxx_reset_device(p, ALL_TARGETS, channel, ALL_LUNS, SCB_LIST_NULL); - - if ( !(p->features & AHC_TWIN) ) - { - restart_sequencer(p); - } - - return; -} - -/*+F************************************************************************* - * Function: - * aic7xxx_run_waiting_queues - * - * Description: - * Scan the awaiting_scbs queue downloading and starting as many - * scbs as we can. - *-F*************************************************************************/ -static void -aic7xxx_run_waiting_queues(struct aic7xxx_host *p) -{ - struct aic7xxx_scb *scb; - struct aic_dev_data *aic_dev; - int sent; - - - if (p->waiting_scbs.head == NULL) - return; - - sent = 0; - - /* - * First handle SCBs that are waiting but have been assigned a slot. - */ - while ((scb = scbq_remove_head(&p->waiting_scbs)) != NULL) - { - aic_dev = scb->cmd->device->hostdata; - if ( !scb->tag_action ) - { - aic_dev->temp_q_depth = 1; - } - if ( aic_dev->active_cmds >= aic_dev->temp_q_depth) - { - scbq_insert_tail(&aic_dev->delayed_scbs, scb); - } - else - { - scb->flags &= ~SCB_WAITINGQ; - aic_dev->active_cmds++; - p->activescbs++; - if ( !(scb->tag_action) ) - { - aic7xxx_busy_target(p, scb); - } - p->qinfifo[p->qinfifonext++] = scb->hscb->tag; - sent++; - } - } - if (sent) - { - if (p->features & AHC_QUEUE_REGS) - aic_outb(p, p->qinfifonext, HNSCB_QOFF); - else - { - pause_sequencer(p); - aic_outb(p, p->qinfifonext, KERNEL_QINPOS); - unpause_sequencer(p, FALSE); - } - if (p->activescbs > p->max_activescbs) - p->max_activescbs = p->activescbs; - } -} - -#ifdef CONFIG_PCI - -#define DPE 0x80 -#define SSE 0x40 -#define RMA 0x20 -#define RTA 0x10 -#define STA 0x08 -#define DPR 0x01 - -/*+F************************************************************************* - * Function: - * aic7xxx_pci_intr - * - * Description: - * Check the scsi card for PCI errors and clear the interrupt - * - * NOTE: If you don't have this function and a 2940 card encounters - * a PCI error condition, the machine will end up locked as the - * interrupt handler gets slammed with non-stop PCI error interrupts - *-F*************************************************************************/ -static void -aic7xxx_pci_intr(struct aic7xxx_host *p) -{ - unsigned char status1; - - pci_read_config_byte(p->pdev, PCI_STATUS + 1, &status1); - - if ( (status1 & DPE) && (aic7xxx_verbose & VERBOSE_MINOR_ERROR) ) - printk(WARN_LEAD "Data Parity Error during PCI address or PCI write" - "phase.\n", p->host_no, -1, -1, -1); - if ( (status1 & SSE) && (aic7xxx_verbose & VERBOSE_MINOR_ERROR) ) - printk(WARN_LEAD "Signal System Error Detected\n", p->host_no, - -1, -1, -1); - if ( (status1 & RMA) && (aic7xxx_verbose & VERBOSE_MINOR_ERROR) ) - printk(WARN_LEAD "Received a PCI Master Abort\n", p->host_no, - -1, -1, -1); - if ( (status1 & RTA) && (aic7xxx_verbose & VERBOSE_MINOR_ERROR) ) - printk(WARN_LEAD "Received a PCI Target Abort\n", p->host_no, - -1, -1, -1); - if ( (status1 & STA) && (aic7xxx_verbose & VERBOSE_MINOR_ERROR) ) - printk(WARN_LEAD "Signaled a PCI Target Abort\n", p->host_no, - -1, -1, -1); - if ( (status1 & DPR) && (aic7xxx_verbose & VERBOSE_MINOR_ERROR) ) - printk(WARN_LEAD "Data Parity Error has been reported via PCI pin " - "PERR#\n", p->host_no, -1, -1, -1); - - pci_write_config_byte(p->pdev, PCI_STATUS + 1, status1); - if (status1 & (DPR|RMA|RTA)) - aic_outb(p, CLRPARERR, CLRINT); - - if ( (aic7xxx_panic_on_abort) && (p->spurious_int > 500) ) - aic7xxx_panic_abort(p, NULL); - -} -#endif /* CONFIG_PCI */ - -/*+F************************************************************************* - * Function: - * aic7xxx_construct_ppr - * - * Description: - * Build up a Parallel Protocol Request message for use with SCSI-3 - * devices. - *-F*************************************************************************/ -static void -aic7xxx_construct_ppr(struct aic7xxx_host *p, struct aic7xxx_scb *scb) -{ - p->msg_buf[p->msg_index++] = MSG_EXTENDED; - p->msg_buf[p->msg_index++] = MSG_EXT_PPR_LEN; - p->msg_buf[p->msg_index++] = MSG_EXT_PPR; - p->msg_buf[p->msg_index++] = AIC_DEV(scb->cmd)->goal.period; - p->msg_buf[p->msg_index++] = 0; - p->msg_buf[p->msg_index++] = AIC_DEV(scb->cmd)->goal.offset; - p->msg_buf[p->msg_index++] = AIC_DEV(scb->cmd)->goal.width; - p->msg_buf[p->msg_index++] = AIC_DEV(scb->cmd)->goal.options; - p->msg_len += 8; -} - -/*+F************************************************************************* - * Function: - * aic7xxx_construct_sdtr - * - * Description: - * Constucts a synchronous data transfer message in the message - * buffer on the sequencer. - *-F*************************************************************************/ -static void -aic7xxx_construct_sdtr(struct aic7xxx_host *p, unsigned char period, - unsigned char offset) -{ - p->msg_buf[p->msg_index++] = MSG_EXTENDED; - p->msg_buf[p->msg_index++] = MSG_EXT_SDTR_LEN; - p->msg_buf[p->msg_index++] = MSG_EXT_SDTR; - p->msg_buf[p->msg_index++] = period; - p->msg_buf[p->msg_index++] = offset; - p->msg_len += 5; -} - -/*+F************************************************************************* - * Function: - * aic7xxx_construct_wdtr - * - * Description: - * Constucts a wide data transfer message in the message buffer - * on the sequencer. - *-F*************************************************************************/ -static void -aic7xxx_construct_wdtr(struct aic7xxx_host *p, unsigned char bus_width) -{ - p->msg_buf[p->msg_index++] = MSG_EXTENDED; - p->msg_buf[p->msg_index++] = MSG_EXT_WDTR_LEN; - p->msg_buf[p->msg_index++] = MSG_EXT_WDTR; - p->msg_buf[p->msg_index++] = bus_width; - p->msg_len += 4; -} - -/*+F************************************************************************* - * Function: - * aic7xxx_calc_residual - * - * Description: - * Calculate the residual data not yet transferred. - *-F*************************************************************************/ -static void -aic7xxx_calculate_residual (struct aic7xxx_host *p, struct aic7xxx_scb *scb) -{ - struct aic7xxx_hwscb *hscb; - struct scsi_cmnd *cmd; - int actual, i; - - cmd = scb->cmd; - hscb = scb->hscb; - - /* - * Don't destroy valid residual information with - * residual coming from a check sense operation. - */ - if (((scb->hscb->control & DISCONNECTED) == 0) && - (scb->flags & SCB_SENSE) == 0) - { - /* - * We had an underflow. At this time, there's only - * one other driver that bothers to check for this, - * and cmd->underflow seems to be set rather half- - * heartedly in the higher-level SCSI code. - */ - actual = scb->sg_length; - for (i=1; i < hscb->residual_SG_segment_count; i++) - { - actual -= scb->sg_list[scb->sg_count - i].length; - } - actual -= (hscb->residual_data_count[2] << 16) | - (hscb->residual_data_count[1] << 8) | - hscb->residual_data_count[0]; - - if (actual < cmd->underflow) - { - if (aic7xxx_verbose & VERBOSE_MINOR_ERROR) - { - printk(INFO_LEAD "Underflow - Wanted %u, %s %u, residual SG " - "count %d.\n", p->host_no, CTL_OF_SCB(scb), cmd->underflow, - (rq_data_dir(cmd->request) == WRITE) ? "wrote" : "read", actual, - hscb->residual_SG_segment_count); - printk(INFO_LEAD "status 0x%x.\n", p->host_no, CTL_OF_SCB(scb), - hscb->target_status); - } - /* - * In 2.4, only send back the residual information, don't flag this - * as an error. Before 2.4 we had to flag this as an error because - * the mid layer didn't check residual data counts to see if the - * command needs retried. - */ - scsi_set_resid(cmd, scb->sg_length - actual); - aic7xxx_status(cmd) = hscb->target_status; - } - } - - /* - * Clean out the residual information in the SCB for the - * next consumer. - */ - hscb->residual_data_count[2] = 0; - hscb->residual_data_count[1] = 0; - hscb->residual_data_count[0] = 0; - hscb->residual_SG_segment_count = 0; -} - -/*+F************************************************************************* - * Function: - * aic7xxx_handle_device_reset - * - * Description: - * Interrupt handler for sequencer interrupts (SEQINT). - *-F*************************************************************************/ -static void -aic7xxx_handle_device_reset(struct aic7xxx_host *p, int target, int channel) -{ - unsigned char tindex = target; - - tindex |= ((channel & 0x01) << 3); - - /* - * Go back to async/narrow transfers and renegotiate. - */ - aic_outb(p, 0, TARG_SCSIRATE + tindex); - if (p->features & AHC_ULTRA2) - aic_outb(p, 0, TARG_OFFSET + tindex); - aic7xxx_reset_device(p, target, channel, ALL_LUNS, SCB_LIST_NULL); - if (aic7xxx_verbose & VERBOSE_RESET_PROCESS) - printk(INFO_LEAD "Bus Device Reset delivered.\n", p->host_no, channel, - target, -1); - aic7xxx_run_done_queue(p, /*complete*/ TRUE); -} - -/*+F************************************************************************* - * Function: - * aic7xxx_handle_seqint - * - * Description: - * Interrupt handler for sequencer interrupts (SEQINT). - *-F*************************************************************************/ -static void -aic7xxx_handle_seqint(struct aic7xxx_host *p, unsigned char intstat) -{ - struct aic7xxx_scb *scb; - struct aic_dev_data *aic_dev; - unsigned short target_mask; - unsigned char target, lun, tindex; - unsigned char queue_flag = FALSE; - char channel; - int result; - - target = ((aic_inb(p, SAVED_TCL) >> 4) & 0x0f); - if ( (p->chip & AHC_CHIPID_MASK) == AHC_AIC7770 ) - channel = (aic_inb(p, SBLKCTL) & SELBUSB) >> 3; - else - channel = 0; - tindex = target + (channel << 3); - lun = aic_inb(p, SAVED_TCL) & 0x07; - target_mask = (0x01 << tindex); - - /* - * Go ahead and clear the SEQINT now, that avoids any interrupt race - * conditions later on in case we enable some other interrupt. - */ - aic_outb(p, CLRSEQINT, CLRINT); - switch (intstat & SEQINT_MASK) - { - case NO_MATCH: - { - aic_outb(p, aic_inb(p, SCSISEQ) & (ENSELI|ENRSELI|ENAUTOATNP), - SCSISEQ); - printk(WARN_LEAD "No active SCB for reconnecting target - Issuing " - "BUS DEVICE RESET.\n", p->host_no, channel, target, lun); - printk(WARN_LEAD " SAVED_TCL=0x%x, ARG_1=0x%x, SEQADDR=0x%x\n", - p->host_no, channel, target, lun, - aic_inb(p, SAVED_TCL), aic_inb(p, ARG_1), - (aic_inb(p, SEQADDR1) << 8) | aic_inb(p, SEQADDR0)); - if (aic7xxx_panic_on_abort) - aic7xxx_panic_abort(p, NULL); - } - break; - - case SEND_REJECT: - { - if (aic7xxx_verbose & VERBOSE_MINOR_ERROR) - printk(INFO_LEAD "Rejecting unknown message (0x%x) received from " - "target, SEQ_FLAGS=0x%x\n", p->host_no, channel, target, lun, - aic_inb(p, ACCUM), aic_inb(p, SEQ_FLAGS)); - } - break; - - case NO_IDENT: - { - /* - * The reconnecting target either did not send an identify - * message, or did, but we didn't find an SCB to match and - * before it could respond to our ATN/abort, it hit a dataphase. - * The only safe thing to do is to blow it away with a bus - * reset. - */ - if (aic7xxx_verbose & (VERBOSE_SEQINT | VERBOSE_RESET_MID)) - printk(INFO_LEAD "Target did not send an IDENTIFY message; " - "LASTPHASE 0x%x, SAVED_TCL 0x%x\n", p->host_no, channel, target, - lun, aic_inb(p, LASTPHASE), aic_inb(p, SAVED_TCL)); - - aic7xxx_reset_channel(p, channel, /*initiate reset*/ TRUE); - aic7xxx_run_done_queue(p, TRUE); - - } - break; - - case BAD_PHASE: - if (aic_inb(p, LASTPHASE) == P_BUSFREE) - { - if (aic7xxx_verbose & VERBOSE_SEQINT) - printk(INFO_LEAD "Missed busfree.\n", p->host_no, channel, - target, lun); - restart_sequencer(p); - } - else - { - if (aic7xxx_verbose & VERBOSE_SEQINT) - printk(INFO_LEAD "Unknown scsi bus phase, continuing\n", p->host_no, - channel, target, lun); - } - break; - - case EXTENDED_MSG: - { - p->msg_type = MSG_TYPE_INITIATOR_MSGIN; - p->msg_len = 0; - p->msg_index = 0; - -#ifdef AIC7XXX_VERBOSE_DEBUGGING - if (aic7xxx_verbose > 0xffff) - printk(INFO_LEAD "Enabling REQINITs for MSG_IN\n", p->host_no, - channel, target, lun); -#endif - - /* - * To actually receive the message, simply turn on - * REQINIT interrupts and let our interrupt handler - * do the rest (REQINIT should already be true). - */ - p->flags |= AHC_HANDLING_REQINITS; - aic_outb(p, aic_inb(p, SIMODE1) | ENREQINIT, SIMODE1); - - /* - * We don't want the sequencer unpaused yet so we return early - */ - return; - } - - case REJECT_MSG: - { - /* - * What we care about here is if we had an outstanding SDTR - * or WDTR message for this target. If we did, this is a - * signal that the target is refusing negotiation. - */ - unsigned char scb_index; - unsigned char last_msg; - - scb_index = aic_inb(p, SCB_TAG); - scb = p->scb_data->scb_array[scb_index]; - aic_dev = AIC_DEV(scb->cmd); - last_msg = aic_inb(p, LAST_MSG); - - if ( (last_msg == MSG_IDENTIFYFLAG) && - (scb->tag_action) && - !(scb->flags & SCB_MSGOUT_BITS) ) - { - if (scb->tag_action == MSG_ORDERED_Q_TAG) - { - /* - * OK...the device seems able to accept tagged commands, but - * not ordered tag commands, only simple tag commands. So, we - * disable ordered tag commands and go on with life just like - * normal. - */ - scsi_adjust_queue_depth(scb->cmd->device, MSG_SIMPLE_TAG, - scb->cmd->device->queue_depth); - scb->tag_action = MSG_SIMPLE_Q_TAG; - scb->hscb->control &= ~SCB_TAG_TYPE; - scb->hscb->control |= MSG_SIMPLE_Q_TAG; - aic_outb(p, scb->hscb->control, SCB_CONTROL); - /* - * OK..we set the tag type to simple tag command, now we re-assert - * ATNO and hope this will take us into the identify phase again - * so we can resend the tag type and info to the device. - */ - aic_outb(p, MSG_IDENTIFYFLAG, MSG_OUT); - aic_outb(p, aic_inb(p, SCSISIGI) | ATNO, SCSISIGO); - } - else if (scb->tag_action == MSG_SIMPLE_Q_TAG) - { - unsigned char i; - struct aic7xxx_scb *scbp; - int old_verbose; - /* - * Hmmmm....the device is flaking out on tagged commands. - */ - scsi_adjust_queue_depth(scb->cmd->device, 0 /* untagged */, - p->host->cmd_per_lun); - aic_dev->max_q_depth = aic_dev->temp_q_depth = 1; - /* - * We set this command up as a bus device reset. However, we have - * to clear the tag type as it's causing us problems. We shouldn't - * have to worry about any other commands being active, since if - * the device is refusing tagged commands, this should be the - * first tagged command sent to the device, however, we do have - * to worry about any other tagged commands that may already be - * in the qinfifo. The easiest way to do this, is to issue a BDR, - * send all the commands back to the mid level code, then let them - * come back and get rebuilt as untagged commands. - */ - scb->tag_action = 0; - scb->hscb->control &= ~(TAG_ENB | SCB_TAG_TYPE); - aic_outb(p, scb->hscb->control, SCB_CONTROL); - - old_verbose = aic7xxx_verbose; - aic7xxx_verbose &= ~(VERBOSE_RESET|VERBOSE_ABORT); - for (i=0; i < p->scb_data->numscbs; i++) - { - scbp = p->scb_data->scb_array[i]; - if ((scbp->flags & SCB_ACTIVE) && (scbp != scb)) - { - if (aic7xxx_match_scb(p, scbp, target, channel, lun, i)) - { - aic7xxx_reset_device(p, target, channel, lun, i); - } - } - } - aic7xxx_run_done_queue(p, TRUE); - aic7xxx_verbose = old_verbose; - /* - * Wait until after the for loop to set the busy index since - * aic7xxx_reset_device will clear the busy index during its - * operation. - */ - aic7xxx_busy_target(p, scb); - printk(INFO_LEAD "Device is refusing tagged commands, using " - "untagged I/O.\n", p->host_no, channel, target, lun); - aic_outb(p, MSG_IDENTIFYFLAG, MSG_OUT); - aic_outb(p, aic_inb(p, SCSISIGI) | ATNO, SCSISIGO); - } - } - else if (scb->flags & SCB_MSGOUT_PPR) - { - /* - * As per the draft specs, any device capable of supporting any of - * the option values other than 0 are not allowed to reject the - * PPR message. Instead, they must negotiate out what they do - * support instead of rejecting our offering or else they cause - * a parity error during msg_out phase to signal that they don't - * like our settings. - */ - aic_dev->needppr = aic_dev->needppr_copy = 0; - aic7xxx_set_width(p, target, channel, lun, MSG_EXT_WDTR_BUS_8_BIT, - (AHC_TRANS_ACTIVE|AHC_TRANS_CUR|AHC_TRANS_QUITE), aic_dev); - aic7xxx_set_syncrate(p, NULL, target, channel, 0, 0, 0, - AHC_TRANS_ACTIVE|AHC_TRANS_CUR|AHC_TRANS_QUITE, - aic_dev); - aic_dev->goal.options = aic_dev->dtr_pending = 0; - scb->flags &= ~SCB_MSGOUT_BITS; - if(aic7xxx_verbose & VERBOSE_NEGOTIATION2) - { - printk(INFO_LEAD "Device is rejecting PPR messages, falling " - "back.\n", p->host_no, channel, target, lun); - } - if ( aic_dev->goal.width ) - { - aic_dev->needwdtr = aic_dev->needwdtr_copy = 1; - aic_dev->dtr_pending = 1; - scb->flags |= SCB_MSGOUT_WDTR; - } - if ( aic_dev->goal.offset ) - { - aic_dev->needsdtr = aic_dev->needsdtr_copy = 1; - if( !aic_dev->dtr_pending ) - { - aic_dev->dtr_pending = 1; - scb->flags |= SCB_MSGOUT_SDTR; - } - } - if ( aic_dev->dtr_pending ) - { - aic_outb(p, HOST_MSG, MSG_OUT); - aic_outb(p, aic_inb(p, SCSISIGI) | ATNO, SCSISIGO); - } - } - else if (scb->flags & SCB_MSGOUT_WDTR) - { - /* - * note 8bit xfers and clear flag - */ - aic_dev->needwdtr = aic_dev->needwdtr_copy = 0; - scb->flags &= ~SCB_MSGOUT_BITS; - aic7xxx_set_width(p, target, channel, lun, MSG_EXT_WDTR_BUS_8_BIT, - (AHC_TRANS_ACTIVE|AHC_TRANS_GOAL|AHC_TRANS_CUR), aic_dev); - aic7xxx_set_syncrate(p, NULL, target, channel, 0, 0, 0, - AHC_TRANS_ACTIVE|AHC_TRANS_CUR|AHC_TRANS_QUITE, - aic_dev); - if(aic7xxx_verbose & VERBOSE_NEGOTIATION2) - { - printk(INFO_LEAD "Device is rejecting WDTR messages, using " - "narrow transfers.\n", p->host_no, channel, target, lun); - } - aic_dev->needsdtr = aic_dev->needsdtr_copy; - } - else if (scb->flags & SCB_MSGOUT_SDTR) - { - /* - * note asynch xfers and clear flag - */ - aic_dev->needsdtr = aic_dev->needsdtr_copy = 0; - scb->flags &= ~SCB_MSGOUT_BITS; - aic7xxx_set_syncrate(p, NULL, target, channel, 0, 0, 0, - (AHC_TRANS_CUR|AHC_TRANS_ACTIVE|AHC_TRANS_GOAL), aic_dev); - if(aic7xxx_verbose & VERBOSE_NEGOTIATION2) - { - printk(INFO_LEAD "Device is rejecting SDTR messages, using " - "async transfers.\n", p->host_no, channel, target, lun); - } - } - else if (aic7xxx_verbose & VERBOSE_SEQINT) - { - /* - * Otherwise, we ignore it. - */ - printk(INFO_LEAD "Received MESSAGE_REJECT for unknown cause. " - "Ignoring.\n", p->host_no, channel, target, lun); - } - } - break; - - case BAD_STATUS: - { - unsigned char scb_index; - struct aic7xxx_hwscb *hscb; - struct scsi_cmnd *cmd; - - /* The sequencer will notify us when a command has an error that - * would be of interest to the kernel. This allows us to leave - * the sequencer running in the common case of command completes - * without error. The sequencer will have DMA'd the SCB back - * up to us, so we can reference the drivers SCB array. - * - * Set the default return value to 0 indicating not to send - * sense. The sense code will change this if needed and this - * reduces code duplication. - */ - aic_outb(p, 0, RETURN_1); - scb_index = aic_inb(p, SCB_TAG); - if (scb_index > p->scb_data->numscbs) - { - printk(WARN_LEAD "Invalid SCB during SEQINT 0x%02x, SCB_TAG %d.\n", - p->host_no, channel, target, lun, intstat, scb_index); - break; - } - scb = p->scb_data->scb_array[scb_index]; - hscb = scb->hscb; - - if (!(scb->flags & SCB_ACTIVE) || (scb->cmd == NULL)) - { - printk(WARN_LEAD "Invalid SCB during SEQINT 0x%x, scb %d, flags 0x%x," - " cmd 0x%lx.\n", p->host_no, channel, target, lun, intstat, - scb_index, scb->flags, (unsigned long) scb->cmd); - } - else - { - cmd = scb->cmd; - aic_dev = AIC_DEV(scb->cmd); - hscb->target_status = aic_inb(p, SCB_TARGET_STATUS); - aic7xxx_status(cmd) = hscb->target_status; - - cmd->result = hscb->target_status; - - switch (status_byte(hscb->target_status)) - { - case GOOD: - if (aic7xxx_verbose & VERBOSE_SEQINT) - printk(INFO_LEAD "Interrupted for status of GOOD???\n", - p->host_no, CTL_OF_SCB(scb)); - break; - - case COMMAND_TERMINATED: - case CHECK_CONDITION: - if ( !(scb->flags & SCB_SENSE) ) - { - /* - * Send a sense command to the requesting target. - * XXX - revisit this and get rid of the memcopys. - */ - memcpy(scb->sense_cmd, &generic_sense[0], - sizeof(generic_sense)); - - scb->sense_cmd[1] = (cmd->device->lun << 5); - scb->sense_cmd[4] = SCSI_SENSE_BUFFERSIZE; - - scb->sg_list[0].length = - cpu_to_le32(SCSI_SENSE_BUFFERSIZE); - scb->sg_list[0].address = - cpu_to_le32(pci_map_single(p->pdev, cmd->sense_buffer, - SCSI_SENSE_BUFFERSIZE, - PCI_DMA_FROMDEVICE)); - - /* - * XXX - We should allow disconnection, but can't as it - * might allow overlapped tagged commands. - */ - /* hscb->control &= DISCENB; */ - hscb->control = 0; - hscb->target_status = 0; - hscb->SG_list_pointer = - cpu_to_le32(SCB_DMA_ADDR(scb, scb->sg_list)); - hscb->SCSI_cmd_pointer = - cpu_to_le32(SCB_DMA_ADDR(scb, scb->sense_cmd)); - hscb->data_count = scb->sg_list[0].length; - hscb->data_pointer = scb->sg_list[0].address; - hscb->SCSI_cmd_length = COMMAND_SIZE(scb->sense_cmd[0]); - hscb->residual_SG_segment_count = 0; - hscb->residual_data_count[0] = 0; - hscb->residual_data_count[1] = 0; - hscb->residual_data_count[2] = 0; - - scb->sg_count = hscb->SG_segment_count = 1; - scb->sg_length = SCSI_SENSE_BUFFERSIZE; - scb->tag_action = 0; - scb->flags |= SCB_SENSE; - /* - * Ensure the target is busy since this will be an - * an untagged request. - */ -#ifdef AIC7XXX_VERBOSE_DEBUGGING - if (aic7xxx_verbose & VERBOSE_NEGOTIATION2) - { - if (scb->flags & SCB_MSGOUT_BITS) - printk(INFO_LEAD "Requesting SENSE with %s\n", p->host_no, - CTL_OF_SCB(scb), (scb->flags & SCB_MSGOUT_SDTR) ? - "SDTR" : "WDTR"); - else - printk(INFO_LEAD "Requesting SENSE, no MSG\n", p->host_no, - CTL_OF_SCB(scb)); - } -#endif - aic7xxx_busy_target(p, scb); - aic_outb(p, SEND_SENSE, RETURN_1); - aic7xxx_error(cmd) = DID_OK; - break; - } /* first time sense, no errors */ - printk(INFO_LEAD "CHECK_CONDITION on REQUEST_SENSE, returning " - "an error.\n", p->host_no, CTL_OF_SCB(scb)); - aic7xxx_error(cmd) = DID_ERROR; - scb->flags &= ~SCB_SENSE; - break; - - case QUEUE_FULL: - queue_flag = TRUE; /* Mark that this is a QUEUE_FULL and */ - case BUSY: /* drop through to here */ - { - struct aic7xxx_scb *next_scbp, *prev_scbp; - unsigned char active_hscb, next_hscb, prev_hscb, scb_index; - /* - * We have to look three places for queued commands: - * 1: p->waiting_scbs queue - * 2: QINFIFO - * 3: WAITING_SCBS list on card (for commands that are started - * but haven't yet made it to the device) - * - * Of special note here is that commands on 2 or 3 above will - * have already been marked as active, while commands on 1 will - * not. The aic7xxx_done() function will want to unmark them - * from active, so any commands we pull off of 1 need to - * up the active count. - */ - next_scbp = p->waiting_scbs.head; - while ( next_scbp != NULL ) - { - prev_scbp = next_scbp; - next_scbp = next_scbp->q_next; - if ( aic7xxx_match_scb(p, prev_scbp, target, channel, lun, - SCB_LIST_NULL) ) - { - scbq_remove(&p->waiting_scbs, prev_scbp); - scb->flags = SCB_QUEUED_FOR_DONE | SCB_QUEUE_FULL; - p->activescbs++; - aic_dev->active_cmds++; - } - } - aic7xxx_search_qinfifo(p, target, channel, lun, - SCB_LIST_NULL, SCB_QUEUED_FOR_DONE | SCB_QUEUE_FULL, - FALSE, NULL); - next_scbp = NULL; - active_hscb = aic_inb(p, SCBPTR); - prev_hscb = next_hscb = scb_index = SCB_LIST_NULL; - next_hscb = aic_inb(p, WAITING_SCBH); - while (next_hscb != SCB_LIST_NULL) - { - aic_outb(p, next_hscb, SCBPTR); - scb_index = aic_inb(p, SCB_TAG); - if (scb_index < p->scb_data->numscbs) - { - next_scbp = p->scb_data->scb_array[scb_index]; - if (aic7xxx_match_scb(p, next_scbp, target, channel, lun, - SCB_LIST_NULL) ) - { - next_scbp->flags = SCB_QUEUED_FOR_DONE | SCB_QUEUE_FULL; - next_hscb = aic_inb(p, SCB_NEXT); - aic_outb(p, 0, SCB_CONTROL); - aic_outb(p, SCB_LIST_NULL, SCB_TAG); - aic7xxx_add_curscb_to_free_list(p); - if (prev_hscb == SCB_LIST_NULL) - { - /* We were first on the list, - * so we kill the selection - * hardware. Let the sequencer - * re-init the hardware itself - */ - aic_outb(p, aic_inb(p, SCSISEQ) & ~ENSELO, SCSISEQ); - aic_outb(p, CLRSELTIMEO, CLRSINT1); - aic_outb(p, next_hscb, WAITING_SCBH); - } - else - { - aic_outb(p, prev_hscb, SCBPTR); - aic_outb(p, next_hscb, SCB_NEXT); - } - } - else - { - prev_hscb = next_hscb; - next_hscb = aic_inb(p, SCB_NEXT); - } - } /* scb_index >= p->scb_data->numscbs */ - } - aic_outb(p, active_hscb, SCBPTR); - aic7xxx_run_done_queue(p, FALSE); - -#ifdef AIC7XXX_VERBOSE_DEBUGGING - if( (aic7xxx_verbose & VERBOSE_MINOR_ERROR) || - (aic7xxx_verbose > 0xffff) ) - { - if (queue_flag) - printk(INFO_LEAD "Queue full received; queue depth %d, " - "active %d\n", p->host_no, CTL_OF_SCB(scb), - aic_dev->max_q_depth, aic_dev->active_cmds); - else - printk(INFO_LEAD "Target busy\n", p->host_no, CTL_OF_SCB(scb)); - } -#endif - if (queue_flag) - { - int diff; - result = scsi_track_queue_full(cmd->device, - aic_dev->active_cmds); - if ( result < 0 ) - { - if (aic7xxx_verbose & VERBOSE_NEGOTIATION2) - printk(INFO_LEAD "Tagged Command Queueing disabled.\n", - p->host_no, CTL_OF_SCB(scb)); - diff = aic_dev->max_q_depth - p->host->cmd_per_lun; - aic_dev->temp_q_depth = 1; - aic_dev->max_q_depth = 1; - } - else if ( result > 0 ) - { - if (aic7xxx_verbose & VERBOSE_NEGOTIATION2) - printk(INFO_LEAD "Queue depth reduced to %d\n", p->host_no, - CTL_OF_SCB(scb), result); - diff = aic_dev->max_q_depth - result; - aic_dev->max_q_depth = result; - /* temp_q_depth could have been dropped to 1 for an untagged - * command that might be coming up */ - if(aic_dev->temp_q_depth > result) - aic_dev->temp_q_depth = result; - } - /* We should free up the no unused SCB entries. But, that's - * a difficult thing to do because we use a direct indexed - * array, so we can't just take any entries and free them, - * we *have* to free the ones at the end of the array, and - * they very well could be in use right now, which means - * in order to do this right, we have to add a delayed - * freeing mechanism tied into the scb_free() code area. - * We'll add that later. - */ - } - break; - } - - default: - if (aic7xxx_verbose & VERBOSE_SEQINT) - printk(INFO_LEAD "Unexpected target status 0x%x.\n", p->host_no, - CTL_OF_SCB(scb), scb->hscb->target_status); - if (!aic7xxx_error(cmd)) - { - aic7xxx_error(cmd) = DID_RETRY_COMMAND; - } - break; - } /* end switch */ - } /* end else of */ - } - break; - - case AWAITING_MSG: - { - unsigned char scb_index, msg_out; - - scb_index = aic_inb(p, SCB_TAG); - msg_out = aic_inb(p, MSG_OUT); - scb = p->scb_data->scb_array[scb_index]; - aic_dev = AIC_DEV(scb->cmd); - p->msg_index = p->msg_len = 0; - /* - * This SCB had a MK_MESSAGE set in its control byte informing - * the sequencer that we wanted to send a special message to - * this target. - */ - - if ( !(scb->flags & SCB_DEVICE_RESET) && - (msg_out == MSG_IDENTIFYFLAG) && - (scb->hscb->control & TAG_ENB) ) - { - p->msg_buf[p->msg_index++] = scb->tag_action; - p->msg_buf[p->msg_index++] = scb->hscb->tag; - p->msg_len += 2; - } - - if (scb->flags & SCB_DEVICE_RESET) - { - p->msg_buf[p->msg_index++] = MSG_BUS_DEV_RESET; - p->msg_len++; - if (aic7xxx_verbose & VERBOSE_RESET_PROCESS) - printk(INFO_LEAD "Bus device reset mailed.\n", - p->host_no, CTL_OF_SCB(scb)); - } - else if (scb->flags & SCB_ABORT) - { - if (scb->tag_action) - { - p->msg_buf[p->msg_index++] = MSG_ABORT_TAG; - } - else - { - p->msg_buf[p->msg_index++] = MSG_ABORT; - } - p->msg_len++; - if (aic7xxx_verbose & VERBOSE_ABORT_PROCESS) - printk(INFO_LEAD "Abort message mailed.\n", p->host_no, - CTL_OF_SCB(scb)); - } - else if (scb->flags & SCB_MSGOUT_PPR) - { - if (aic7xxx_verbose & VERBOSE_NEGOTIATION2) - { - printk(INFO_LEAD "Sending PPR (%d/%d/%d/%d) message.\n", - p->host_no, CTL_OF_SCB(scb), - aic_dev->goal.period, - aic_dev->goal.offset, - aic_dev->goal.width, - aic_dev->goal.options); - } - aic7xxx_construct_ppr(p, scb); - } - else if (scb->flags & SCB_MSGOUT_WDTR) - { - if (aic7xxx_verbose & VERBOSE_NEGOTIATION2) - { - printk(INFO_LEAD "Sending WDTR message.\n", p->host_no, - CTL_OF_SCB(scb)); - } - aic7xxx_construct_wdtr(p, aic_dev->goal.width); - } - else if (scb->flags & SCB_MSGOUT_SDTR) - { - unsigned int max_sync, period; - unsigned char options = 0; - /* - * Now that the device is selected, use the bits in SBLKCTL and - * SSTAT2 to determine the max sync rate for this device. - */ - if (p->features & AHC_ULTRA2) - { - if ( (aic_inb(p, SBLKCTL) & ENAB40) && - !(aic_inb(p, SSTAT2) & EXP_ACTIVE) ) - { - max_sync = AHC_SYNCRATE_ULTRA2; - } - else - { - max_sync = AHC_SYNCRATE_ULTRA; - } - } - else if (p->features & AHC_ULTRA) - { - max_sync = AHC_SYNCRATE_ULTRA; - } - else - { - max_sync = AHC_SYNCRATE_FAST; - } - period = aic_dev->goal.period; - aic7xxx_find_syncrate(p, &period, max_sync, &options); - if (aic7xxx_verbose & VERBOSE_NEGOTIATION2) - { - printk(INFO_LEAD "Sending SDTR %d/%d message.\n", p->host_no, - CTL_OF_SCB(scb), period, - aic_dev->goal.offset); - } - aic7xxx_construct_sdtr(p, period, aic_dev->goal.offset); - } - else - { - panic("aic7xxx: AWAITING_MSG for an SCB that does " - "not have a waiting message.\n"); - } - /* - * We've set everything up to send our message, now to actually do - * so we need to enable reqinit interrupts and let the interrupt - * handler do the rest. We don't want to unpause the sequencer yet - * though so we'll return early. We also have to make sure that - * we clear the SEQINT *BEFORE* we set the REQINIT handler active - * or else it's possible on VLB cards to lose the first REQINIT - * interrupt. Edge triggered EISA cards could also lose this - * interrupt, although PCI and level triggered cards should not - * have this problem since they continually interrupt the kernel - * until we take care of the situation. - */ - scb->flags |= SCB_MSGOUT_SENT; - p->msg_index = 0; - p->msg_type = MSG_TYPE_INITIATOR_MSGOUT; - p->flags |= AHC_HANDLING_REQINITS; - aic_outb(p, aic_inb(p, SIMODE1) | ENREQINIT, SIMODE1); - return; - } - break; - - case DATA_OVERRUN: - { - unsigned char scb_index = aic_inb(p, SCB_TAG); - unsigned char lastphase = aic_inb(p, LASTPHASE); - unsigned int i; - - scb = (p->scb_data->scb_array[scb_index]); - /* - * XXX - What do we really want to do on an overrun? The - * mid-level SCSI code should handle this, but for now, - * we'll just indicate that the command should retried. - * If we retrieved sense info on this target, then the - * base SENSE info should have been saved prior to the - * overrun error. In that case, we return DID_OK and let - * the mid level code pick up on the sense info. Otherwise - * we return DID_ERROR so the command will get retried. - */ - if ( !(scb->flags & SCB_SENSE) ) - { - printk(WARN_LEAD "Data overrun detected in %s phase, tag %d;\n", - p->host_no, CTL_OF_SCB(scb), - (lastphase == P_DATAIN) ? "Data-In" : "Data-Out", scb->hscb->tag); - printk(KERN_WARNING " %s seen Data Phase. Length=%d, NumSGs=%d.\n", - (aic_inb(p, SEQ_FLAGS) & DPHASE) ? "Have" : "Haven't", - scb->sg_length, scb->sg_count); - printk(KERN_WARNING " Raw SCSI Command: 0x"); - for (i = 0; i < scb->hscb->SCSI_cmd_length; i++) - { - printk("%02x ", scb->cmd->cmnd[i]); - } - printk("\n"); - if(aic7xxx_verbose > 0xffff) - { - for (i = 0; i < scb->sg_count; i++) - { - printk(KERN_WARNING " sg[%d] - Addr 0x%x : Length %d\n", - i, - le32_to_cpu(scb->sg_list[i].address), - le32_to_cpu(scb->sg_list[i].length) ); - } - } - aic7xxx_error(scb->cmd) = DID_ERROR; - } - else - printk(INFO_LEAD "Data Overrun during SEND_SENSE operation.\n", - p->host_no, CTL_OF_SCB(scb)); - } - break; - - case WIDE_RESIDUE: - { - unsigned char resid_sgcnt, index; - unsigned char scb_index = aic_inb(p, SCB_TAG); - unsigned int cur_addr, resid_dcnt; - unsigned int native_addr, native_length, sg_addr; - int i; - - if(scb_index > p->scb_data->numscbs) - { - printk(WARN_LEAD "invalid scb_index during WIDE_RESIDUE.\n", - p->host_no, -1, -1, -1); - /* - * XXX: Add error handling here - */ - break; - } - scb = p->scb_data->scb_array[scb_index]; - if(!(scb->flags & SCB_ACTIVE) || (scb->cmd == NULL)) - { - printk(WARN_LEAD "invalid scb during WIDE_RESIDUE flags:0x%x " - "scb->cmd:0x%lx\n", p->host_no, CTL_OF_SCB(scb), - scb->flags, (unsigned long)scb->cmd); - break; - } - if(aic7xxx_verbose & VERBOSE_MINOR_ERROR) - printk(INFO_LEAD "Got WIDE_RESIDUE message, patching up data " - "pointer.\n", p->host_no, CTL_OF_SCB(scb)); - - /* - * We have a valid scb to use on this WIDE_RESIDUE message, so - * we need to walk the sg list looking for this particular sg - * segment, then see if we happen to be at the very beginning of - * the segment. If we are, then we have to back things up to - * the previous segment. If not, then we simply need to remove - * one byte from this segments address and add one to the byte - * count. - */ - cur_addr = aic_inb(p, SHADDR) | (aic_inb(p, SHADDR + 1) << 8) | - (aic_inb(p, SHADDR + 2) << 16) | (aic_inb(p, SHADDR + 3) << 24); - sg_addr = aic_inb(p, SG_COUNT + 1) | (aic_inb(p, SG_COUNT + 2) << 8) | - (aic_inb(p, SG_COUNT + 3) << 16) | (aic_inb(p, SG_COUNT + 4) << 24); - resid_sgcnt = aic_inb(p, SCB_RESID_SGCNT); - resid_dcnt = aic_inb(p, SCB_RESID_DCNT) | - (aic_inb(p, SCB_RESID_DCNT + 1) << 8) | - (aic_inb(p, SCB_RESID_DCNT + 2) << 16); - index = scb->sg_count - ((resid_sgcnt) ? resid_sgcnt : 1); - native_addr = le32_to_cpu(scb->sg_list[index].address); - native_length = le32_to_cpu(scb->sg_list[index].length); - /* - * If resid_dcnt == native_length, then we just loaded this SG - * segment and we need to back it up one... - */ - if(resid_dcnt == native_length) - { - if(index == 0) - { - /* - * Oops, this isn't right, we can't back up to before the - * beginning. This must be a bogus message, ignore it. - */ - break; - } - resid_dcnt = 1; - resid_sgcnt += 1; - native_addr = le32_to_cpu(scb->sg_list[index - 1].address); - native_length = le32_to_cpu(scb->sg_list[index - 1].length); - cur_addr = native_addr + (native_length - 1); - sg_addr -= sizeof(struct hw_scatterlist); - } - else - { - /* - * resid_dcnt != native_length, so we are in the middle of a SG - * element. Back it up one byte and leave the rest alone. - */ - resid_dcnt += 1; - cur_addr -= 1; - } - - /* - * Output the new addresses and counts to the right places on the - * card. - */ - aic_outb(p, resid_sgcnt, SG_COUNT); - aic_outb(p, resid_sgcnt, SCB_RESID_SGCNT); - aic_outb(p, sg_addr & 0xff, SG_COUNT + 1); - aic_outb(p, (sg_addr >> 8) & 0xff, SG_COUNT + 2); - aic_outb(p, (sg_addr >> 16) & 0xff, SG_COUNT + 3); - aic_outb(p, (sg_addr >> 24) & 0xff, SG_COUNT + 4); - aic_outb(p, resid_dcnt & 0xff, SCB_RESID_DCNT); - aic_outb(p, (resid_dcnt >> 8) & 0xff, SCB_RESID_DCNT + 1); - aic_outb(p, (resid_dcnt >> 16) & 0xff, SCB_RESID_DCNT + 2); - - /* - * The sequencer actually wants to find the new address - * in the SHADDR register set. On the Ultra2 and later controllers - * this register set is readonly. In order to get the right number - * into the register, you actually have to enter it in HADDR and then - * use the PRELOADEN bit of DFCNTRL to drop it through from the - * HADDR register to the SHADDR register. On non-Ultra2 controllers, - * we simply write it direct. - */ - if(p->features & AHC_ULTRA2) - { - /* - * We might as well be accurate and drop both the resid_dcnt and - * cur_addr into HCNT and HADDR and have both of them drop - * through to the shadow layer together. - */ - aic_outb(p, resid_dcnt & 0xff, HCNT); - aic_outb(p, (resid_dcnt >> 8) & 0xff, HCNT + 1); - aic_outb(p, (resid_dcnt >> 16) & 0xff, HCNT + 2); - aic_outb(p, cur_addr & 0xff, HADDR); - aic_outb(p, (cur_addr >> 8) & 0xff, HADDR + 1); - aic_outb(p, (cur_addr >> 16) & 0xff, HADDR + 2); - aic_outb(p, (cur_addr >> 24) & 0xff, HADDR + 3); - aic_outb(p, aic_inb(p, DMAPARAMS) | PRELOADEN, DFCNTRL); - udelay(1); - aic_outb(p, aic_inb(p, DMAPARAMS) & ~(SCSIEN|HDMAEN), DFCNTRL); - i=0; - while(((aic_inb(p, DFCNTRL) & (SCSIEN|HDMAEN)) != 0) && (i++ < 1000)) - { - udelay(1); - } - } - else - { - aic_outb(p, cur_addr & 0xff, SHADDR); - aic_outb(p, (cur_addr >> 8) & 0xff, SHADDR + 1); - aic_outb(p, (cur_addr >> 16) & 0xff, SHADDR + 2); - aic_outb(p, (cur_addr >> 24) & 0xff, SHADDR + 3); - } - } - break; - - case SEQ_SG_FIXUP: - { - unsigned char scb_index, tmp; - int sg_addr, sg_length; - - scb_index = aic_inb(p, SCB_TAG); - - if(scb_index > p->scb_data->numscbs) - { - printk(WARN_LEAD "invalid scb_index during SEQ_SG_FIXUP.\n", - p->host_no, -1, -1, -1); - printk(INFO_LEAD "SCSISIGI 0x%x, SEQADDR 0x%x, SSTAT0 0x%x, SSTAT1 " - "0x%x\n", p->host_no, -1, -1, -1, - aic_inb(p, SCSISIGI), - aic_inb(p, SEQADDR0) | (aic_inb(p, SEQADDR1) << 8), - aic_inb(p, SSTAT0), aic_inb(p, SSTAT1)); - printk(INFO_LEAD "SG_CACHEPTR 0x%x, SSTAT2 0x%x, STCNT 0x%x\n", - p->host_no, -1, -1, -1, aic_inb(p, SG_CACHEPTR), - aic_inb(p, SSTAT2), aic_inb(p, STCNT + 2) << 16 | - aic_inb(p, STCNT + 1) << 8 | aic_inb(p, STCNT)); - /* - * XXX: Add error handling here - */ - break; - } - scb = p->scb_data->scb_array[scb_index]; - if(!(scb->flags & SCB_ACTIVE) || (scb->cmd == NULL)) - { - printk(WARN_LEAD "invalid scb during SEQ_SG_FIXUP flags:0x%x " - "scb->cmd:0x%p\n", p->host_no, CTL_OF_SCB(scb), - scb->flags, scb->cmd); - printk(INFO_LEAD "SCSISIGI 0x%x, SEQADDR 0x%x, SSTAT0 0x%x, SSTAT1 " - "0x%x\n", p->host_no, CTL_OF_SCB(scb), - aic_inb(p, SCSISIGI), - aic_inb(p, SEQADDR0) | (aic_inb(p, SEQADDR1) << 8), - aic_inb(p, SSTAT0), aic_inb(p, SSTAT1)); - printk(INFO_LEAD "SG_CACHEPTR 0x%x, SSTAT2 0x%x, STCNT 0x%x\n", - p->host_no, CTL_OF_SCB(scb), aic_inb(p, SG_CACHEPTR), - aic_inb(p, SSTAT2), aic_inb(p, STCNT + 2) << 16 | - aic_inb(p, STCNT + 1) << 8 | aic_inb(p, STCNT)); - break; - } - if(aic7xxx_verbose & VERBOSE_MINOR_ERROR) - printk(INFO_LEAD "Fixing up SG address for sequencer.\n", p->host_no, - CTL_OF_SCB(scb)); - /* - * Advance the SG pointer to the next element in the list - */ - tmp = aic_inb(p, SG_NEXT); - tmp += SG_SIZEOF; - aic_outb(p, tmp, SG_NEXT); - if( tmp < SG_SIZEOF ) - aic_outb(p, aic_inb(p, SG_NEXT + 1) + 1, SG_NEXT + 1); - tmp = aic_inb(p, SG_COUNT) - 1; - aic_outb(p, tmp, SG_COUNT); - sg_addr = le32_to_cpu(scb->sg_list[scb->sg_count - tmp].address); - sg_length = le32_to_cpu(scb->sg_list[scb->sg_count - tmp].length); - /* - * Now stuff the element we just advanced past down onto the - * card so it can be stored in the residual area. - */ - aic_outb(p, sg_addr & 0xff, HADDR); - aic_outb(p, (sg_addr >> 8) & 0xff, HADDR + 1); - aic_outb(p, (sg_addr >> 16) & 0xff, HADDR + 2); - aic_outb(p, (sg_addr >> 24) & 0xff, HADDR + 3); - aic_outb(p, sg_length & 0xff, HCNT); - aic_outb(p, (sg_length >> 8) & 0xff, HCNT + 1); - aic_outb(p, (sg_length >> 16) & 0xff, HCNT + 2); - aic_outb(p, (tmp << 2) | ((tmp == 1) ? LAST_SEG : 0), SG_CACHEPTR); - aic_outb(p, aic_inb(p, DMAPARAMS), DFCNTRL); - while(aic_inb(p, SSTAT0) & SDONE) udelay(1); - while(aic_inb(p, DFCNTRL) & (HDMAEN|SCSIEN)) aic_outb(p, 0, DFCNTRL); - } - break; - -#ifdef AIC7XXX_NOT_YET - case TRACEPOINT2: - { - printk(INFO_LEAD "Tracepoint #2 reached.\n", p->host_no, - channel, target, lun); - } - break; - - /* XXX Fill these in later */ - case MSG_BUFFER_BUSY: - printk("aic7xxx: Message buffer busy.\n"); - break; - case MSGIN_PHASEMIS: - printk("aic7xxx: Message-in phasemis.\n"); - break; -#endif - - default: /* unknown */ - printk(WARN_LEAD "Unknown SEQINT, INTSTAT 0x%x, SCSISIGI 0x%x.\n", - p->host_no, channel, target, lun, intstat, - aic_inb(p, SCSISIGI)); - break; - } - - /* - * Clear the sequencer interrupt and unpause the sequencer. - */ - unpause_sequencer(p, /* unpause always */ TRUE); -} - -/*+F************************************************************************* - * Function: - * aic7xxx_parse_msg - * - * Description: - * Parses incoming messages into actions on behalf of - * aic7xxx_handle_reqinit - *_F*************************************************************************/ -static int -aic7xxx_parse_msg(struct aic7xxx_host *p, struct aic7xxx_scb *scb) -{ - int reject, reply, done; - unsigned char target_scsirate, tindex; - unsigned short target_mask; - unsigned char target, channel, lun; - unsigned char bus_width, new_bus_width; - unsigned char trans_options, new_trans_options; - unsigned int period, new_period, offset, new_offset, maxsync; - struct aic7xxx_syncrate *syncrate; - struct aic_dev_data *aic_dev; - - target = scb->cmd->device->id; - channel = scb->cmd->device->channel; - lun = scb->cmd->device->lun; - reply = reject = done = FALSE; - tindex = TARGET_INDEX(scb->cmd); - aic_dev = AIC_DEV(scb->cmd); - target_scsirate = aic_inb(p, TARG_SCSIRATE + tindex); - target_mask = (0x01 << tindex); - - /* - * Parse as much of the message as is available, - * rejecting it if we don't support it. When - * the entire message is available and has been - * handled, return TRUE indicating that we have - * parsed an entire message. - */ - - if (p->msg_buf[0] != MSG_EXTENDED) - { - reject = TRUE; - } - - /* - * Even if we are an Ultra3 card, don't allow Ultra3 sync rates when - * using the SDTR messages. We need the PPR messages to enable the - * higher speeds that include things like Dual Edge clocking. - */ - if (p->features & AHC_ULTRA2) - { - if ( (aic_inb(p, SBLKCTL) & ENAB40) && - !(aic_inb(p, SSTAT2) & EXP_ACTIVE) ) - { - if (p->features & AHC_ULTRA3) - maxsync = AHC_SYNCRATE_ULTRA3; - else - maxsync = AHC_SYNCRATE_ULTRA2; - } - else - { - maxsync = AHC_SYNCRATE_ULTRA; - } - } - else if (p->features & AHC_ULTRA) - { - maxsync = AHC_SYNCRATE_ULTRA; - } - else - { - maxsync = AHC_SYNCRATE_FAST; - } - - /* - * Just accept the length byte outright and perform - * more checking once we know the message type. - */ - - if ( !reject && (p->msg_len > 2) ) - { - switch(p->msg_buf[2]) - { - case MSG_EXT_SDTR: - { - - if (p->msg_buf[1] != MSG_EXT_SDTR_LEN) - { - reject = TRUE; - break; - } - - if (p->msg_len < (MSG_EXT_SDTR_LEN + 2)) - { - break; - } - - period = new_period = p->msg_buf[3]; - offset = new_offset = p->msg_buf[4]; - trans_options = new_trans_options = 0; - bus_width = new_bus_width = target_scsirate & WIDEXFER; - - /* - * If our current max syncrate is in the Ultra3 range, bump it back - * down to Ultra2 since we can't negotiate DT transfers using SDTR - */ - if(maxsync == AHC_SYNCRATE_ULTRA3) - maxsync = AHC_SYNCRATE_ULTRA2; - - /* - * We might have a device that is starting negotiation with us - * before we can start up negotiation with it....be prepared to - * have a device ask for a higher speed then we want to give it - * in that case - */ - if ( (scb->flags & (SCB_MSGOUT_SENT|SCB_MSGOUT_SDTR)) != - (SCB_MSGOUT_SENT|SCB_MSGOUT_SDTR) ) - { - if (!(aic_dev->flags & DEVICE_DTR_SCANNED)) - { - /* - * We shouldn't get here unless this is a narrow drive, wide - * devices should trigger this same section of code in the WDTR - * handler first instead. - */ - aic_dev->goal.width = MSG_EXT_WDTR_BUS_8_BIT; - aic_dev->goal.options = 0; - if(p->user[tindex].offset) - { - aic_dev->needsdtr_copy = 1; - aic_dev->goal.period = max_t(unsigned char, 10,p->user[tindex].period); - if(p->features & AHC_ULTRA2) - { - aic_dev->goal.offset = MAX_OFFSET_ULTRA2; - } - else - { - aic_dev->goal.offset = MAX_OFFSET_8BIT; - } - } - else - { - aic_dev->needsdtr_copy = 0; - aic_dev->goal.period = 255; - aic_dev->goal.offset = 0; - } - aic_dev->flags |= DEVICE_DTR_SCANNED | DEVICE_PRINT_DTR; - } - else if (aic_dev->needsdtr_copy == 0) - { - /* - * This is a preemptive message from the target, we've already - * scanned this target and set our options for it, and we - * don't need a SDTR with this target (for whatever reason), - * so reject this incoming SDTR - */ - reject = TRUE; - break; - } - - /* The device is sending this message first and we have to reply */ - reply = TRUE; - - if (aic7xxx_verbose & VERBOSE_NEGOTIATION2) - { - printk(INFO_LEAD "Received pre-emptive SDTR message from " - "target.\n", p->host_no, CTL_OF_SCB(scb)); - } - /* - * Validate the values the device passed to us against our SEEPROM - * settings. We don't have to do this if we aren't replying since - * the device isn't allowed to send values greater than the ones - * we first sent to it. - */ - new_period = max_t(unsigned int, period, aic_dev->goal.period); - new_offset = min_t(unsigned int, offset, aic_dev->goal.offset); - } - - /* - * Use our new_period, new_offset, bus_width, and card options - * to determine the actual syncrate settings - */ - syncrate = aic7xxx_find_syncrate(p, &new_period, maxsync, - &trans_options); - aic7xxx_validate_offset(p, syncrate, &new_offset, bus_width); - - /* - * Did we drop to async? If so, send a reply regardless of whether - * or not we initiated this negotiation. - */ - if ((new_offset == 0) && (new_offset != offset)) - { - aic_dev->needsdtr_copy = 0; - reply = TRUE; - } - - /* - * Did we start this, if not, or if we went too low and had to - * go async, then send an SDTR back to the target - */ - if(reply) - { - /* when sending a reply, make sure that the goal settings are - * updated along with current and active since the code that - * will actually build the message for the sequencer uses the - * goal settings as its guidelines. - */ - aic7xxx_set_syncrate(p, syncrate, target, channel, new_period, - new_offset, trans_options, - AHC_TRANS_GOAL|AHC_TRANS_ACTIVE|AHC_TRANS_CUR, - aic_dev); - scb->flags &= ~SCB_MSGOUT_BITS; - scb->flags |= SCB_MSGOUT_SDTR; - aic_outb(p, HOST_MSG, MSG_OUT); - aic_outb(p, aic_inb(p, SCSISIGO) | ATNO, SCSISIGO); - } - else - { - aic7xxx_set_syncrate(p, syncrate, target, channel, new_period, - new_offset, trans_options, - AHC_TRANS_ACTIVE|AHC_TRANS_CUR, aic_dev); - aic_dev->needsdtr = 0; - } - done = TRUE; - break; - } - case MSG_EXT_WDTR: - { - - if (p->msg_buf[1] != MSG_EXT_WDTR_LEN) - { - reject = TRUE; - break; - } - - if (p->msg_len < (MSG_EXT_WDTR_LEN + 2)) - { - break; - } - - bus_width = new_bus_width = p->msg_buf[3]; - - if ( (scb->flags & (SCB_MSGOUT_SENT|SCB_MSGOUT_WDTR)) == - (SCB_MSGOUT_SENT|SCB_MSGOUT_WDTR) ) - { - switch(bus_width) - { - default: - { - reject = TRUE; - if ( (aic7xxx_verbose & VERBOSE_NEGOTIATION2) && - ((aic_dev->flags & DEVICE_PRINT_DTR) || - (aic7xxx_verbose > 0xffff)) ) - { - printk(INFO_LEAD "Requesting %d bit transfers, rejecting.\n", - p->host_no, CTL_OF_SCB(scb), 8 * (0x01 << bus_width)); - } - } /* We fall through on purpose */ - case MSG_EXT_WDTR_BUS_8_BIT: - { - aic_dev->goal.width = MSG_EXT_WDTR_BUS_8_BIT; - aic_dev->needwdtr_copy &= ~target_mask; - break; - } - case MSG_EXT_WDTR_BUS_16_BIT: - { - break; - } - } - aic_dev->needwdtr = 0; - aic7xxx_set_width(p, target, channel, lun, new_bus_width, - AHC_TRANS_ACTIVE|AHC_TRANS_CUR, aic_dev); - } - else - { - if ( !(aic_dev->flags & DEVICE_DTR_SCANNED) ) - { - /* - * Well, we now know the WDTR and SYNC caps of this device since - * it contacted us first, mark it as such and copy the user stuff - * over to the goal stuff. - */ - if( (p->features & AHC_WIDE) && p->user[tindex].width ) - { - aic_dev->goal.width = MSG_EXT_WDTR_BUS_16_BIT; - aic_dev->needwdtr_copy = 1; - } - - /* - * Devices that support DT transfers don't start WDTR requests - */ - aic_dev->goal.options = 0; - - if(p->user[tindex].offset) - { - aic_dev->needsdtr_copy = 1; - aic_dev->goal.period = max_t(unsigned char, 10, p->user[tindex].period); - if(p->features & AHC_ULTRA2) - { - aic_dev->goal.offset = MAX_OFFSET_ULTRA2; - } - else if( aic_dev->goal.width ) - { - aic_dev->goal.offset = MAX_OFFSET_16BIT; - } - else - { - aic_dev->goal.offset = MAX_OFFSET_8BIT; - } - } else { - aic_dev->needsdtr_copy = 0; - aic_dev->goal.period = 255; - aic_dev->goal.offset = 0; - } - - aic_dev->flags |= DEVICE_DTR_SCANNED | DEVICE_PRINT_DTR; - } - else if (aic_dev->needwdtr_copy == 0) - { - /* - * This is a preemptive message from the target, we've already - * scanned this target and set our options for it, and we - * don't need a WDTR with this target (for whatever reason), - * so reject this incoming WDTR - */ - reject = TRUE; - break; - } - - /* The device is sending this message first and we have to reply */ - reply = TRUE; - - if (aic7xxx_verbose & VERBOSE_NEGOTIATION2) - { - printk(INFO_LEAD "Received pre-emptive WDTR message from " - "target.\n", p->host_no, CTL_OF_SCB(scb)); - } - switch(bus_width) - { - case MSG_EXT_WDTR_BUS_16_BIT: - { - if ( (p->features & AHC_WIDE) && - (aic_dev->goal.width == MSG_EXT_WDTR_BUS_16_BIT) ) - { - new_bus_width = MSG_EXT_WDTR_BUS_16_BIT; - break; - } - } /* Fall through if we aren't a wide card */ - default: - case MSG_EXT_WDTR_BUS_8_BIT: - { - aic_dev->needwdtr_copy = 0; - new_bus_width = MSG_EXT_WDTR_BUS_8_BIT; - break; - } - } - scb->flags &= ~SCB_MSGOUT_BITS; - scb->flags |= SCB_MSGOUT_WDTR; - aic_dev->needwdtr = 0; - if(aic_dev->dtr_pending == 0) - { - /* there is no other command with SCB_DTR_SCB already set that will - * trigger the release of the dtr_pending bit. Both set the bit - * and set scb->flags |= SCB_DTR_SCB - */ - aic_dev->dtr_pending = 1; - scb->flags |= SCB_DTR_SCB; - } - aic_outb(p, HOST_MSG, MSG_OUT); - aic_outb(p, aic_inb(p, SCSISIGO) | ATNO, SCSISIGO); - /* when sending a reply, make sure that the goal settings are - * updated along with current and active since the code that - * will actually build the message for the sequencer uses the - * goal settings as its guidelines. - */ - aic7xxx_set_width(p, target, channel, lun, new_bus_width, - AHC_TRANS_GOAL|AHC_TRANS_ACTIVE|AHC_TRANS_CUR, - aic_dev); - } - - /* - * By virtue of the SCSI spec, a WDTR message negates any existing - * SDTR negotiations. So, even if needsdtr isn't marked for this - * device, we still have to do a new SDTR message if the device - * supports SDTR at all. Therefore, we check needsdtr_copy instead - * of needstr. - */ - aic7xxx_set_syncrate(p, NULL, target, channel, 0, 0, 0, - AHC_TRANS_ACTIVE|AHC_TRANS_CUR|AHC_TRANS_QUITE, - aic_dev); - aic_dev->needsdtr = aic_dev->needsdtr_copy; - done = TRUE; - break; - } - case MSG_EXT_PPR: - { - - if (p->msg_buf[1] != MSG_EXT_PPR_LEN) - { - reject = TRUE; - break; - } - - if (p->msg_len < (MSG_EXT_PPR_LEN + 2)) - { - break; - } - - period = new_period = p->msg_buf[3]; - offset = new_offset = p->msg_buf[5]; - bus_width = new_bus_width = p->msg_buf[6]; - trans_options = new_trans_options = p->msg_buf[7] & 0xf; - - if(aic7xxx_verbose & VERBOSE_NEGOTIATION2) - { - printk(INFO_LEAD "Parsing PPR message (%d/%d/%d/%d)\n", - p->host_no, CTL_OF_SCB(scb), period, offset, bus_width, - trans_options); - } - - /* - * We might have a device that is starting negotiation with us - * before we can start up negotiation with it....be prepared to - * have a device ask for a higher speed then we want to give it - * in that case - */ - if ( (scb->flags & (SCB_MSGOUT_SENT|SCB_MSGOUT_PPR)) != - (SCB_MSGOUT_SENT|SCB_MSGOUT_PPR) ) - { - /* Have we scanned the device yet? */ - if (!(aic_dev->flags & DEVICE_DTR_SCANNED)) - { - /* The device is electing to use PPR messages, so we will too until - * we know better */ - aic_dev->needppr = aic_dev->needppr_copy = 1; - aic_dev->needsdtr = aic_dev->needsdtr_copy = 0; - aic_dev->needwdtr = aic_dev->needwdtr_copy = 0; - - /* We know the device is SCSI-3 compliant due to PPR */ - aic_dev->flags |= DEVICE_SCSI_3; - - /* - * Not only is the device starting this up, but it also hasn't - * been scanned yet, so this would likely be our TUR or our - * INQUIRY command at scan time, so we need to use the - * settings from the SEEPROM if they existed. Of course, even - * if we didn't find a SEEPROM, we stuffed default values into - * the user settings anyway, so use those in all cases. - */ - aic_dev->goal.width = p->user[tindex].width; - if(p->user[tindex].offset) - { - aic_dev->goal.period = p->user[tindex].period; - aic_dev->goal.options = p->user[tindex].options; - if(p->features & AHC_ULTRA2) - { - aic_dev->goal.offset = MAX_OFFSET_ULTRA2; - } - else if( aic_dev->goal.width && - (bus_width == MSG_EXT_WDTR_BUS_16_BIT) && - p->features & AHC_WIDE ) - { - aic_dev->goal.offset = MAX_OFFSET_16BIT; - } - else - { - aic_dev->goal.offset = MAX_OFFSET_8BIT; - } - } - else - { - aic_dev->goal.period = 255; - aic_dev->goal.offset = 0; - aic_dev->goal.options = 0; - } - aic_dev->flags |= DEVICE_DTR_SCANNED | DEVICE_PRINT_DTR; - } - else if (aic_dev->needppr_copy == 0) - { - /* - * This is a preemptive message from the target, we've already - * scanned this target and set our options for it, and we - * don't need a PPR with this target (for whatever reason), - * so reject this incoming PPR - */ - reject = TRUE; - break; - } - - /* The device is sending this message first and we have to reply */ - reply = TRUE; - - if (aic7xxx_verbose & VERBOSE_NEGOTIATION2) - { - printk(INFO_LEAD "Received pre-emptive PPR message from " - "target.\n", p->host_no, CTL_OF_SCB(scb)); - } - - } - - switch(bus_width) - { - case MSG_EXT_WDTR_BUS_16_BIT: - { - if ( (aic_dev->goal.width == MSG_EXT_WDTR_BUS_16_BIT) && - p->features & AHC_WIDE) - { - break; - } - } - default: - { - if ( (aic7xxx_verbose & VERBOSE_NEGOTIATION2) && - ((aic_dev->flags & DEVICE_PRINT_DTR) || - (aic7xxx_verbose > 0xffff)) ) - { - reply = TRUE; - printk(INFO_LEAD "Requesting %d bit transfers, rejecting.\n", - p->host_no, CTL_OF_SCB(scb), 8 * (0x01 << bus_width)); - } - } /* We fall through on purpose */ - case MSG_EXT_WDTR_BUS_8_BIT: - { - /* - * According to the spec, if we aren't wide, we also can't be - * Dual Edge so clear the options byte - */ - new_trans_options = 0; - new_bus_width = MSG_EXT_WDTR_BUS_8_BIT; - break; - } - } - - if(reply) - { - /* when sending a reply, make sure that the goal settings are - * updated along with current and active since the code that - * will actually build the message for the sequencer uses the - * goal settings as its guidelines. - */ - aic7xxx_set_width(p, target, channel, lun, new_bus_width, - AHC_TRANS_GOAL|AHC_TRANS_ACTIVE|AHC_TRANS_CUR, - aic_dev); - syncrate = aic7xxx_find_syncrate(p, &new_period, maxsync, - &new_trans_options); - aic7xxx_validate_offset(p, syncrate, &new_offset, new_bus_width); - aic7xxx_set_syncrate(p, syncrate, target, channel, new_period, - new_offset, new_trans_options, - AHC_TRANS_GOAL|AHC_TRANS_ACTIVE|AHC_TRANS_CUR, - aic_dev); - } - else - { - aic7xxx_set_width(p, target, channel, lun, new_bus_width, - AHC_TRANS_ACTIVE|AHC_TRANS_CUR, aic_dev); - syncrate = aic7xxx_find_syncrate(p, &new_period, maxsync, - &new_trans_options); - aic7xxx_validate_offset(p, syncrate, &new_offset, new_bus_width); - aic7xxx_set_syncrate(p, syncrate, target, channel, new_period, - new_offset, new_trans_options, - AHC_TRANS_ACTIVE|AHC_TRANS_CUR, aic_dev); - } - - /* - * As it turns out, if we don't *have* to have PPR messages, then - * configure ourselves not to use them since that makes some - * external drive chassis work (those chassis can't parse PPR - * messages and they mangle the SCSI bus until you send a WDTR - * and SDTR that they can understand). - */ - if(new_trans_options == 0) - { - aic_dev->needppr = aic_dev->needppr_copy = 0; - if(new_offset) - { - aic_dev->needsdtr = aic_dev->needsdtr_copy = 1; - } - if (new_bus_width) - { - aic_dev->needwdtr = aic_dev->needwdtr_copy = 1; - } - } - - if((new_offset == 0) && (offset != 0)) - { - /* - * Oops, the syncrate went to low for this card and we fell off - * to async (should never happen with a device that uses PPR - * messages, but have to be complete) - */ - reply = TRUE; - } - - if(reply) - { - scb->flags &= ~SCB_MSGOUT_BITS; - scb->flags |= SCB_MSGOUT_PPR; - aic_outb(p, HOST_MSG, MSG_OUT); - aic_outb(p, aic_inb(p, SCSISIGO) | ATNO, SCSISIGO); - } - else - { - aic_dev->needppr = 0; - } - done = TRUE; - break; - } - default: - { - reject = TRUE; - break; - } - } /* end of switch(p->msg_type) */ - } /* end of if (!reject && (p->msg_len > 2)) */ - - if (!reply && reject) - { - aic_outb(p, MSG_MESSAGE_REJECT, MSG_OUT); - aic_outb(p, aic_inb(p, SCSISIGO) | ATNO, SCSISIGO); - done = TRUE; - } - return(done); -} - - -/*+F************************************************************************* - * Function: - * aic7xxx_handle_reqinit - * - * Description: - * Interrupt handler for REQINIT interrupts (used to transfer messages to - * and from devices). - *_F*************************************************************************/ -static void -aic7xxx_handle_reqinit(struct aic7xxx_host *p, struct aic7xxx_scb *scb) -{ - unsigned char lastbyte; - unsigned char phasemis; - int done = FALSE; - - switch(p->msg_type) - { - case MSG_TYPE_INITIATOR_MSGOUT: - { - if (p->msg_len == 0) - panic("aic7xxx: REQINIT with no active message!\n"); - - lastbyte = (p->msg_index == (p->msg_len - 1)); - phasemis = ( aic_inb(p, SCSISIGI) & PHASE_MASK) != P_MESGOUT; - - if (lastbyte || phasemis) - { - /* Time to end the message */ - p->msg_len = 0; - p->msg_type = MSG_TYPE_NONE; - /* - * NOTE-TO-MYSELF: If you clear the REQINIT after you - * disable REQINITs, then cases of REJECT_MSG stop working - * and hang the bus - */ - aic_outb(p, aic_inb(p, SIMODE1) & ~ENREQINIT, SIMODE1); - aic_outb(p, CLRSCSIINT, CLRINT); - p->flags &= ~AHC_HANDLING_REQINITS; - - if (phasemis == 0) - { - aic_outb(p, p->msg_buf[p->msg_index], SINDEX); - aic_outb(p, 0, RETURN_1); -#ifdef AIC7XXX_VERBOSE_DEBUGGING - if (aic7xxx_verbose > 0xffff) - printk(INFO_LEAD "Completed sending of REQINIT message.\n", - p->host_no, CTL_OF_SCB(scb)); -#endif - } - else - { - aic_outb(p, MSGOUT_PHASEMIS, RETURN_1); -#ifdef AIC7XXX_VERBOSE_DEBUGGING - if (aic7xxx_verbose > 0xffff) - printk(INFO_LEAD "PHASEMIS while sending REQINIT message.\n", - p->host_no, CTL_OF_SCB(scb)); -#endif - } - unpause_sequencer(p, TRUE); - } - else - { - /* - * Present the byte on the bus (clearing REQINIT) but don't - * unpause the sequencer. - */ - aic_outb(p, CLRREQINIT, CLRSINT1); - aic_outb(p, CLRSCSIINT, CLRINT); - aic_outb(p, p->msg_buf[p->msg_index++], SCSIDATL); - } - break; - } - case MSG_TYPE_INITIATOR_MSGIN: - { - phasemis = ( aic_inb(p, SCSISIGI) & PHASE_MASK ) != P_MESGIN; - - if (phasemis == 0) - { - p->msg_len++; - /* Pull the byte in without acking it */ - p->msg_buf[p->msg_index] = aic_inb(p, SCSIBUSL); - done = aic7xxx_parse_msg(p, scb); - /* Ack the byte */ - aic_outb(p, CLRREQINIT, CLRSINT1); - aic_outb(p, CLRSCSIINT, CLRINT); - aic_inb(p, SCSIDATL); - p->msg_index++; - } - if (phasemis || done) - { -#ifdef AIC7XXX_VERBOSE_DEBUGGING - if (aic7xxx_verbose > 0xffff) - { - if (phasemis) - printk(INFO_LEAD "PHASEMIS while receiving REQINIT message.\n", - p->host_no, CTL_OF_SCB(scb)); - else - printk(INFO_LEAD "Completed receipt of REQINIT message.\n", - p->host_no, CTL_OF_SCB(scb)); - } -#endif - /* Time to end our message session */ - p->msg_len = 0; - p->msg_type = MSG_TYPE_NONE; - aic_outb(p, aic_inb(p, SIMODE1) & ~ENREQINIT, SIMODE1); - aic_outb(p, CLRSCSIINT, CLRINT); - p->flags &= ~AHC_HANDLING_REQINITS; - unpause_sequencer(p, TRUE); - } - break; - } - default: - { - panic("aic7xxx: Unknown REQINIT message type.\n"); - break; - } - } /* End of switch(p->msg_type) */ -} - -/*+F************************************************************************* - * Function: - * aic7xxx_handle_scsiint - * - * Description: - * Interrupt handler for SCSI interrupts (SCSIINT). - *-F*************************************************************************/ -static void -aic7xxx_handle_scsiint(struct aic7xxx_host *p, unsigned char intstat) -{ - unsigned char scb_index; - unsigned char status; - struct aic7xxx_scb *scb; - struct aic_dev_data *aic_dev; - - scb_index = aic_inb(p, SCB_TAG); - status = aic_inb(p, SSTAT1); - - if (scb_index < p->scb_data->numscbs) - { - scb = p->scb_data->scb_array[scb_index]; - if ((scb->flags & SCB_ACTIVE) == 0) - { - scb = NULL; - } - } - else - { - scb = NULL; - } - - - if ((status & SCSIRSTI) != 0) - { - int channel; - - if ( (p->chip & AHC_CHIPID_MASK) == AHC_AIC7770 ) - channel = (aic_inb(p, SBLKCTL) & SELBUSB) >> 3; - else - channel = 0; - - if (aic7xxx_verbose & VERBOSE_RESET) - printk(WARN_LEAD "Someone else reset the channel!!\n", - p->host_no, channel, -1, -1); - if (aic7xxx_panic_on_abort) - aic7xxx_panic_abort(p, NULL); - /* - * Go through and abort all commands for the channel, but do not - * reset the channel again. - */ - aic7xxx_reset_channel(p, channel, /* Initiate Reset */ FALSE); - aic7xxx_run_done_queue(p, TRUE); - scb = NULL; - } - else if ( ((status & BUSFREE) != 0) && ((status & SELTO) == 0) ) - { - /* - * First look at what phase we were last in. If it's message-out, - * chances are pretty good that the bus free was in response to - * one of our abort requests. - */ - unsigned char lastphase = aic_inb(p, LASTPHASE); - unsigned char saved_tcl = aic_inb(p, SAVED_TCL); - unsigned char target = (saved_tcl >> 4) & 0x0F; - int channel; - int printerror = TRUE; - - if ( (p->chip & AHC_CHIPID_MASK) == AHC_AIC7770 ) - channel = (aic_inb(p, SBLKCTL) & SELBUSB) >> 3; - else - channel = 0; - - aic_outb(p, aic_inb(p, SCSISEQ) & (ENSELI|ENRSELI|ENAUTOATNP), - SCSISEQ); - if (lastphase == P_MESGOUT) - { - unsigned char message; - - message = aic_inb(p, SINDEX); - - if ((message == MSG_ABORT) || (message == MSG_ABORT_TAG)) - { - if (aic7xxx_verbose & VERBOSE_ABORT_PROCESS) - printk(INFO_LEAD "SCB %d abort delivered.\n", p->host_no, - CTL_OF_SCB(scb), scb->hscb->tag); - aic7xxx_reset_device(p, target, channel, ALL_LUNS, - (message == MSG_ABORT) ? SCB_LIST_NULL : scb->hscb->tag ); - aic7xxx_run_done_queue(p, TRUE); - scb = NULL; - printerror = 0; - } - else if (message == MSG_BUS_DEV_RESET) - { - aic7xxx_handle_device_reset(p, target, channel); - scb = NULL; - printerror = 0; - } - } - if ( (scb != NULL) && (scb->flags & SCB_DTR_SCB) ) - { - /* - * Hmmm...error during a negotiation command. Either we have a - * borken bus, or the device doesn't like our negotiation message. - * Since we check the INQUIRY data of a device before sending it - * negotiation messages, assume the bus is borken for whatever - * reason. Complete the command. - */ - printerror = 0; - aic7xxx_reset_device(p, target, channel, ALL_LUNS, scb->hscb->tag); - aic7xxx_run_done_queue(p, TRUE); - scb = NULL; - } - if (printerror != 0) - { - if (scb != NULL) - { - unsigned char tag; - - if ((scb->hscb->control & TAG_ENB) != 0) - { - tag = scb->hscb->tag; - } - else - { - tag = SCB_LIST_NULL; - } - aic7xxx_reset_device(p, target, channel, ALL_LUNS, tag); - aic7xxx_run_done_queue(p, TRUE); - } - else - { - aic7xxx_reset_device(p, target, channel, ALL_LUNS, SCB_LIST_NULL); - aic7xxx_run_done_queue(p, TRUE); - } - printk(INFO_LEAD "Unexpected busfree, LASTPHASE = 0x%x, " - "SEQADDR = 0x%x\n", p->host_no, channel, target, -1, lastphase, - (aic_inb(p, SEQADDR1) << 8) | aic_inb(p, SEQADDR0)); - scb = NULL; - } - aic_outb(p, MSG_NOOP, MSG_OUT); - aic_outb(p, aic_inb(p, SIMODE1) & ~(ENBUSFREE|ENREQINIT), - SIMODE1); - p->flags &= ~AHC_HANDLING_REQINITS; - aic_outb(p, CLRBUSFREE, CLRSINT1); - aic_outb(p, CLRSCSIINT, CLRINT); - restart_sequencer(p); - unpause_sequencer(p, TRUE); - } - else if ((status & SELTO) != 0) - { - unsigned char scbptr; - unsigned char nextscb; - struct scsi_cmnd *cmd; - - scbptr = aic_inb(p, WAITING_SCBH); - if (scbptr > p->scb_data->maxhscbs) - { - /* - * I'm still trying to track down exactly how this happens, but until - * I find it, this code will make sure we aren't passing bogus values - * into the SCBPTR register, even if that register will just wrap - * things around, we still don't like having out of range variables. - * - * NOTE: Don't check the aic7xxx_verbose variable, I want this message - * to always be displayed. - */ - printk(INFO_LEAD "Invalid WAITING_SCBH value %d, improvising.\n", - p->host_no, -1, -1, -1, scbptr); - if (p->scb_data->maxhscbs > 4) - scbptr &= (p->scb_data->maxhscbs - 1); - else - scbptr &= 0x03; - } - aic_outb(p, scbptr, SCBPTR); - scb_index = aic_inb(p, SCB_TAG); - - scb = NULL; - if (scb_index < p->scb_data->numscbs) - { - scb = p->scb_data->scb_array[scb_index]; - if ((scb->flags & SCB_ACTIVE) == 0) - { - scb = NULL; - } - } - if (scb == NULL) - { - printk(WARN_LEAD "Referenced SCB %d not valid during SELTO.\n", - p->host_no, -1, -1, -1, scb_index); - printk(KERN_WARNING " SCSISEQ = 0x%x SEQADDR = 0x%x SSTAT0 = 0x%x " - "SSTAT1 = 0x%x\n", aic_inb(p, SCSISEQ), - aic_inb(p, SEQADDR0) | (aic_inb(p, SEQADDR1) << 8), - aic_inb(p, SSTAT0), aic_inb(p, SSTAT1)); - if (aic7xxx_panic_on_abort) - aic7xxx_panic_abort(p, NULL); - } - else - { - cmd = scb->cmd; - cmd->result = (DID_TIME_OUT << 16); - - /* - * Clear out this hardware SCB - */ - aic_outb(p, 0, SCB_CONTROL); - - /* - * Clear out a few values in the card that are in an undetermined - * state. - */ - aic_outb(p, MSG_NOOP, MSG_OUT); - - /* - * Shift the waiting for selection queue forward - */ - nextscb = aic_inb(p, SCB_NEXT); - aic_outb(p, nextscb, WAITING_SCBH); - - /* - * Put this SCB back on the free list. - */ - aic7xxx_add_curscb_to_free_list(p); -#ifdef AIC7XXX_VERBOSE_DEBUGGING - if (aic7xxx_verbose > 0xffff) - printk(INFO_LEAD "Selection Timeout.\n", p->host_no, CTL_OF_SCB(scb)); -#endif - if (scb->flags & SCB_QUEUED_ABORT) - { - /* - * We know that this particular SCB had to be the queued abort since - * the disconnected SCB would have gotten a reconnect instead. - * What we need to do then is to let the command timeout again so - * we get a reset since this abort just failed. - */ - cmd->result = 0; - scb = NULL; - } - } - /* - * Keep the sequencer from trying to restart any selections - */ - aic_outb(p, aic_inb(p, SCSISEQ) & ~ENSELO, SCSISEQ); - /* - * Make sure the data bits on the bus are released - * Don't do this on 7770 chipsets, it makes them give us - * a BRKADDRINT and kills the card. - */ - if( (p->chip & ~AHC_CHIPID_MASK) == AHC_PCI ) - aic_outb(p, 0, SCSIBUSL); - - /* - * Delay for the selection timeout delay period then stop the selection - */ - udelay(301); - aic_outb(p, CLRSELINGO, CLRSINT0); - /* - * Clear out all the interrupt status bits - */ - aic_outb(p, aic_inb(p, SIMODE1) & ~(ENREQINIT|ENBUSFREE), SIMODE1); - p->flags &= ~AHC_HANDLING_REQINITS; - aic_outb(p, CLRSELTIMEO | CLRBUSFREE, CLRSINT1); - aic_outb(p, CLRSCSIINT, CLRINT); - /* - * Restarting the sequencer will stop the selection and make sure devices - * are allowed to reselect in. - */ - restart_sequencer(p); - unpause_sequencer(p, TRUE); - } - else if (scb == NULL) - { - printk(WARN_LEAD "aic7xxx_isr - referenced scb not valid " - "during scsiint 0x%x scb(%d)\n" - " SIMODE0 0x%x, SIMODE1 0x%x, SSTAT0 0x%x, SEQADDR 0x%x\n", - p->host_no, -1, -1, -1, status, scb_index, aic_inb(p, SIMODE0), - aic_inb(p, SIMODE1), aic_inb(p, SSTAT0), - (aic_inb(p, SEQADDR1) << 8) | aic_inb(p, SEQADDR0)); - /* - * Turn off the interrupt and set status to zero, so that it - * falls through the rest of the SCSIINT code. - */ - aic_outb(p, status, CLRSINT1); - aic_outb(p, CLRSCSIINT, CLRINT); - unpause_sequencer(p, /* unpause always */ TRUE); - scb = NULL; - } - else if (status & SCSIPERR) - { - /* - * Determine the bus phase and queue an appropriate message. - */ - char *phase; - struct scsi_cmnd *cmd; - unsigned char mesg_out = MSG_NOOP; - unsigned char lastphase = aic_inb(p, LASTPHASE); - unsigned char sstat2 = aic_inb(p, SSTAT2); - - cmd = scb->cmd; - switch (lastphase) - { - case P_DATAOUT: - phase = "Data-Out"; - break; - case P_DATAIN: - phase = "Data-In"; - mesg_out = MSG_INITIATOR_DET_ERR; - break; - case P_COMMAND: - phase = "Command"; - break; - case P_MESGOUT: - phase = "Message-Out"; - break; - case P_STATUS: - phase = "Status"; - mesg_out = MSG_INITIATOR_DET_ERR; - break; - case P_MESGIN: - phase = "Message-In"; - mesg_out = MSG_PARITY_ERROR; - break; - default: - phase = "unknown"; - break; - } - - /* - * A parity error has occurred during a data - * transfer phase. Flag it and continue. - */ - if( (p->features & AHC_ULTRA3) && - (aic_inb(p, SCSIRATE) & AHC_SYNCRATE_CRC) && - (lastphase == P_DATAIN) ) - { - printk(WARN_LEAD "CRC error during %s phase.\n", - p->host_no, CTL_OF_SCB(scb), phase); - if(sstat2 & CRCVALERR) - { - printk(WARN_LEAD " CRC error in intermediate CRC packet.\n", - p->host_no, CTL_OF_SCB(scb)); - } - if(sstat2 & CRCENDERR) - { - printk(WARN_LEAD " CRC error in ending CRC packet.\n", - p->host_no, CTL_OF_SCB(scb)); - } - if(sstat2 & CRCREQERR) - { - printk(WARN_LEAD " Target incorrectly requested a CRC packet.\n", - p->host_no, CTL_OF_SCB(scb)); - } - if(sstat2 & DUAL_EDGE_ERROR) - { - printk(WARN_LEAD " Dual Edge transmission error.\n", - p->host_no, CTL_OF_SCB(scb)); - } - } - else if( (lastphase == P_MESGOUT) && - (scb->flags & SCB_MSGOUT_PPR) ) - { - /* - * As per the draft specs, any device capable of supporting any of - * the option values other than 0 are not allowed to reject the - * PPR message. Instead, they must negotiate out what they do - * support instead of rejecting our offering or else they cause - * a parity error during msg_out phase to signal that they don't - * like our settings. - */ - aic_dev = AIC_DEV(scb->cmd); - aic_dev->needppr = aic_dev->needppr_copy = 0; - aic7xxx_set_width(p, scb->cmd->device->id, scb->cmd->device->channel, scb->cmd->device->lun, - MSG_EXT_WDTR_BUS_8_BIT, - (AHC_TRANS_ACTIVE|AHC_TRANS_CUR|AHC_TRANS_QUITE), - aic_dev); - aic7xxx_set_syncrate(p, NULL, scb->cmd->device->id, scb->cmd->device->channel, 0, 0, - 0, AHC_TRANS_ACTIVE|AHC_TRANS_CUR|AHC_TRANS_QUITE, - aic_dev); - aic_dev->goal.options = 0; - scb->flags &= ~SCB_MSGOUT_BITS; - if(aic7xxx_verbose & VERBOSE_NEGOTIATION2) - { - printk(INFO_LEAD "parity error during PPR message, reverting " - "to WDTR/SDTR\n", p->host_no, CTL_OF_SCB(scb)); - } - if ( aic_dev->goal.width ) - { - aic_dev->needwdtr = aic_dev->needwdtr_copy = 1; - } - if ( aic_dev->goal.offset ) - { - if( aic_dev->goal.period <= 9 ) - { - aic_dev->goal.period = 10; - } - aic_dev->needsdtr = aic_dev->needsdtr_copy = 1; - } - scb = NULL; - } - - /* - * We've set the hardware to assert ATN if we get a parity - * error on "in" phases, so all we need to do is stuff the - * message buffer with the appropriate message. "In" phases - * have set mesg_out to something other than MSG_NOP. - */ - if (mesg_out != MSG_NOOP) - { - aic_outb(p, mesg_out, MSG_OUT); - aic_outb(p, aic_inb(p, SCSISIGI) | ATNO, SCSISIGO); - scb = NULL; - } - aic_outb(p, CLRSCSIPERR, CLRSINT1); - aic_outb(p, CLRSCSIINT, CLRINT); - unpause_sequencer(p, /* unpause_always */ TRUE); - } - else if ( (status & REQINIT) && - (p->flags & AHC_HANDLING_REQINITS) ) - { -#ifdef AIC7XXX_VERBOSE_DEBUGGING - if (aic7xxx_verbose > 0xffff) - printk(INFO_LEAD "Handling REQINIT, SSTAT1=0x%x.\n", p->host_no, - CTL_OF_SCB(scb), aic_inb(p, SSTAT1)); -#endif - aic7xxx_handle_reqinit(p, scb); - return; - } - else - { - /* - * We don't know what's going on. Turn off the - * interrupt source and try to continue. - */ - if (aic7xxx_verbose & VERBOSE_SCSIINT) - printk(INFO_LEAD "Unknown SCSIINT status, SSTAT1(0x%x).\n", - p->host_no, -1, -1, -1, status); - aic_outb(p, status, CLRSINT1); - aic_outb(p, CLRSCSIINT, CLRINT); - unpause_sequencer(p, /* unpause always */ TRUE); - scb = NULL; - } - if (scb != NULL) - { - aic7xxx_done(p, scb); - } -} - -#ifdef AIC7XXX_VERBOSE_DEBUGGING -static void -aic7xxx_check_scbs(struct aic7xxx_host *p, char *buffer) -{ - unsigned char saved_scbptr, free_scbh, dis_scbh, wait_scbh, temp; - int i, bogus, lost; - static unsigned char scb_status[AIC7XXX_MAXSCB]; - -#define SCB_NO_LIST 0 -#define SCB_FREE_LIST 1 -#define SCB_WAITING_LIST 2 -#define SCB_DISCONNECTED_LIST 4 -#define SCB_CURRENTLY_ACTIVE 8 - - /* - * Note, these checks will fail on a regular basis once the machine moves - * beyond the bus scan phase. The problem is race conditions concerning - * the scbs and where they are linked in. When you have 30 or so commands - * outstanding on the bus, and run this twice with every interrupt, the - * chances get pretty good that you'll catch the sequencer with an SCB - * only partially linked in. Therefore, once we pass the scan phase - * of the bus, we really should disable this function. - */ - bogus = FALSE; - memset(&scb_status[0], 0, sizeof(scb_status)); - pause_sequencer(p); - saved_scbptr = aic_inb(p, SCBPTR); - if (saved_scbptr >= p->scb_data->maxhscbs) - { - printk("Bogus SCBPTR %d\n", saved_scbptr); - bogus = TRUE; - } - scb_status[saved_scbptr] = SCB_CURRENTLY_ACTIVE; - free_scbh = aic_inb(p, FREE_SCBH); - if ( (free_scbh != SCB_LIST_NULL) && - (free_scbh >= p->scb_data->maxhscbs) ) - { - printk("Bogus FREE_SCBH %d\n", free_scbh); - bogus = TRUE; - } - else - { - temp = free_scbh; - while( (temp != SCB_LIST_NULL) && (temp < p->scb_data->maxhscbs) ) - { - if(scb_status[temp] & 0x07) - { - printk("HSCB %d on multiple lists, status 0x%02x", temp, - scb_status[temp] | SCB_FREE_LIST); - bogus = TRUE; - } - scb_status[temp] |= SCB_FREE_LIST; - aic_outb(p, temp, SCBPTR); - temp = aic_inb(p, SCB_NEXT); - } - } - - dis_scbh = aic_inb(p, DISCONNECTED_SCBH); - if ( (dis_scbh != SCB_LIST_NULL) && - (dis_scbh >= p->scb_data->maxhscbs) ) - { - printk("Bogus DISCONNECTED_SCBH %d\n", dis_scbh); - bogus = TRUE; - } - else - { - temp = dis_scbh; - while( (temp != SCB_LIST_NULL) && (temp < p->scb_data->maxhscbs) ) - { - if(scb_status[temp] & 0x07) - { - printk("HSCB %d on multiple lists, status 0x%02x", temp, - scb_status[temp] | SCB_DISCONNECTED_LIST); - bogus = TRUE; - } - scb_status[temp] |= SCB_DISCONNECTED_LIST; - aic_outb(p, temp, SCBPTR); - temp = aic_inb(p, SCB_NEXT); - } - } - - wait_scbh = aic_inb(p, WAITING_SCBH); - if ( (wait_scbh != SCB_LIST_NULL) && - (wait_scbh >= p->scb_data->maxhscbs) ) - { - printk("Bogus WAITING_SCBH %d\n", wait_scbh); - bogus = TRUE; - } - else - { - temp = wait_scbh; - while( (temp != SCB_LIST_NULL) && (temp < p->scb_data->maxhscbs) ) - { - if(scb_status[temp] & 0x07) - { - printk("HSCB %d on multiple lists, status 0x%02x", temp, - scb_status[temp] | SCB_WAITING_LIST); - bogus = TRUE; - } - scb_status[temp] |= SCB_WAITING_LIST; - aic_outb(p, temp, SCBPTR); - temp = aic_inb(p, SCB_NEXT); - } - } - - lost=0; - for(i=0; i < p->scb_data->maxhscbs; i++) - { - aic_outb(p, i, SCBPTR); - temp = aic_inb(p, SCB_NEXT); - if ( ((temp != SCB_LIST_NULL) && - (temp >= p->scb_data->maxhscbs)) ) - { - printk("HSCB %d bad, SCB_NEXT invalid(%d).\n", i, temp); - bogus = TRUE; - } - if ( temp == i ) - { - printk("HSCB %d bad, SCB_NEXT points to self.\n", i); - bogus = TRUE; - } - if (scb_status[i] == 0) - lost++; - if (lost > 1) - { - printk("Too many lost scbs.\n"); - bogus=TRUE; - } - } - aic_outb(p, saved_scbptr, SCBPTR); - unpause_sequencer(p, FALSE); - if (bogus) - { - printk("Bogus parameters found in card SCB array structures.\n"); - printk("%s\n", buffer); - aic7xxx_panic_abort(p, NULL); - } - return; -} -#endif - - -/*+F************************************************************************* - * Function: - * aic7xxx_handle_command_completion_intr - * - * Description: - * SCSI command completion interrupt handler. - *-F*************************************************************************/ -static void -aic7xxx_handle_command_completion_intr(struct aic7xxx_host *p) -{ - struct aic7xxx_scb *scb = NULL; - struct aic_dev_data *aic_dev; - struct scsi_cmnd *cmd; - unsigned char scb_index, tindex; - -#ifdef AIC7XXX_VERBOSE_DEBUGGING - if( (p->isr_count < 16) && (aic7xxx_verbose > 0xffff) ) - printk(INFO_LEAD "Command Complete Int.\n", p->host_no, -1, -1, -1); -#endif - - /* - * Read the INTSTAT location after clearing the CMDINT bit. This forces - * any posted PCI writes to flush to memory. Gerard Roudier suggested - * this fix to the possible race of clearing the CMDINT bit but not - * having all command bytes flushed onto the qoutfifo. - */ - aic_outb(p, CLRCMDINT, CLRINT); - aic_inb(p, INTSTAT); - /* - * The sequencer will continue running when it - * issues this interrupt. There may be >1 commands - * finished, so loop until we've processed them all. - */ - - while (p->qoutfifo[p->qoutfifonext] != SCB_LIST_NULL) - { - scb_index = p->qoutfifo[p->qoutfifonext]; - p->qoutfifo[p->qoutfifonext++] = SCB_LIST_NULL; - if ( scb_index >= p->scb_data->numscbs ) - { - printk(WARN_LEAD "CMDCMPLT with invalid SCB index %d\n", p->host_no, - -1, -1, -1, scb_index); - continue; - } - scb = p->scb_data->scb_array[scb_index]; - if (!(scb->flags & SCB_ACTIVE) || (scb->cmd == NULL)) - { - printk(WARN_LEAD "CMDCMPLT without command for SCB %d, SCB flags " - "0x%x, cmd 0x%lx\n", p->host_no, -1, -1, -1, scb_index, scb->flags, - (unsigned long) scb->cmd); - continue; - } - tindex = TARGET_INDEX(scb->cmd); - aic_dev = AIC_DEV(scb->cmd); - if (scb->flags & SCB_QUEUED_ABORT) - { - pause_sequencer(p); - if ( ((aic_inb(p, LASTPHASE) & PHASE_MASK) != P_BUSFREE) && - (aic_inb(p, SCB_TAG) == scb->hscb->tag) ) - { - unpause_sequencer(p, FALSE); - continue; - } - aic7xxx_reset_device(p, scb->cmd->device->id, scb->cmd->device->channel, - scb->cmd->device->lun, scb->hscb->tag); - scb->flags &= ~(SCB_QUEUED_FOR_DONE | SCB_RESET | SCB_ABORT | - SCB_QUEUED_ABORT); - unpause_sequencer(p, FALSE); - } - else if (scb->flags & SCB_ABORT) - { - /* - * We started to abort this, but it completed on us, let it - * through as successful - */ - scb->flags &= ~(SCB_ABORT|SCB_RESET); - } - else if (scb->flags & SCB_SENSE) - { - char *buffer = &scb->cmd->sense_buffer[0]; - - if (buffer[12] == 0x47 || buffer[12] == 0x54) - { - /* - * Signal that we need to re-negotiate things. - */ - aic_dev->needppr = aic_dev->needppr_copy; - aic_dev->needsdtr = aic_dev->needsdtr_copy; - aic_dev->needwdtr = aic_dev->needwdtr_copy; - } - } - cmd = scb->cmd; - if (scb->hscb->residual_SG_segment_count != 0) - { - aic7xxx_calculate_residual(p, scb); - } - cmd->result |= (aic7xxx_error(cmd) << 16); - aic7xxx_done(p, scb); - } -} - -/*+F************************************************************************* - * Function: - * aic7xxx_isr - * - * Description: - * SCSI controller interrupt handler. - *-F*************************************************************************/ -static void -aic7xxx_isr(void *dev_id) -{ - struct aic7xxx_host *p; - unsigned char intstat; - - p = dev_id; - - /* - * Just a few sanity checks. Make sure that we have an int pending. - * Also, if PCI, then we are going to check for a PCI bus error status - * should we get too many spurious interrupts. - */ - if (!((intstat = aic_inb(p, INTSTAT)) & INT_PEND)) - { -#ifdef CONFIG_PCI - if ( (p->chip & AHC_PCI) && (p->spurious_int > 500) && - !(p->flags & AHC_HANDLING_REQINITS) ) - { - if ( aic_inb(p, ERROR) & PCIERRSTAT ) - { - aic7xxx_pci_intr(p); - } - p->spurious_int = 0; - } - else if ( !(p->flags & AHC_HANDLING_REQINITS) ) - { - p->spurious_int++; - } -#endif - return; - } - - p->spurious_int = 0; - - /* - * Keep track of interrupts for /proc/scsi - */ - p->isr_count++; - -#ifdef AIC7XXX_VERBOSE_DEBUGGING - if ( (p->isr_count < 16) && (aic7xxx_verbose > 0xffff) && - (aic7xxx_panic_on_abort) && (p->flags & AHC_PAGESCBS) ) - aic7xxx_check_scbs(p, "Bogus settings at start of interrupt."); -#endif - - /* - * Handle all the interrupt sources - especially for SCSI - * interrupts, we won't get a second chance at them. - */ - if (intstat & CMDCMPLT) - { - aic7xxx_handle_command_completion_intr(p); - } - - if (intstat & BRKADRINT) - { - int i; - unsigned char errno = aic_inb(p, ERROR); - - printk(KERN_ERR "(scsi%d) BRKADRINT error(0x%x):\n", p->host_no, errno); - for (i = 0; i < ARRAY_SIZE(hard_error); i++) - { - if (errno & hard_error[i].errno) - { - printk(KERN_ERR " %s\n", hard_error[i].errmesg); - } - } - printk(KERN_ERR "(scsi%d) SEQADDR=0x%x\n", p->host_no, - (((aic_inb(p, SEQADDR1) << 8) & 0x100) | aic_inb(p, SEQADDR0))); - if (aic7xxx_panic_on_abort) - aic7xxx_panic_abort(p, NULL); -#ifdef CONFIG_PCI - if (errno & PCIERRSTAT) - aic7xxx_pci_intr(p); -#endif - if (errno & (SQPARERR | ILLOPCODE | ILLSADDR)) - { - panic("aic7xxx: unrecoverable BRKADRINT.\n"); - } - if (errno & ILLHADDR) - { - printk(KERN_ERR "(scsi%d) BUG! Driver accessed chip without first " - "pausing controller!\n", p->host_no); - } -#ifdef AIC7XXX_VERBOSE_DEBUGGING - if (errno & DPARERR) - { - if (aic_inb(p, DMAPARAMS) & DIRECTION) - printk("(scsi%d) while DMAing SCB from host to card.\n", p->host_no); - else - printk("(scsi%d) while DMAing SCB from card to host.\n", p->host_no); - } -#endif - aic_outb(p, CLRPARERR | CLRBRKADRINT, CLRINT); - unpause_sequencer(p, FALSE); - } - - if (intstat & SEQINT) - { - /* - * Read the CCSCBCTL register to work around a bug in the Ultra2 cards - */ - if(p->features & AHC_ULTRA2) - { - aic_inb(p, CCSCBCTL); - } - aic7xxx_handle_seqint(p, intstat); - } - - if (intstat & SCSIINT) - { - aic7xxx_handle_scsiint(p, intstat); - } - -#ifdef AIC7XXX_VERBOSE_DEBUGGING - if ( (p->isr_count < 16) && (aic7xxx_verbose > 0xffff) && - (aic7xxx_panic_on_abort) && (p->flags & AHC_PAGESCBS) ) - aic7xxx_check_scbs(p, "Bogus settings at end of interrupt."); -#endif - -} - -/*+F************************************************************************* - * Function: - * do_aic7xxx_isr - * - * Description: - * This is a gross hack to solve a problem in linux kernels 2.1.85 and - * above. Please, children, do not try this at home, and if you ever see - * anything like it, please inform the Gross Hack Police immediately - *-F*************************************************************************/ -static irqreturn_t -do_aic7xxx_isr(int irq, void *dev_id) -{ - unsigned long cpu_flags; - struct aic7xxx_host *p; - - p = dev_id; - if(!p) - return IRQ_NONE; - spin_lock_irqsave(p->host->host_lock, cpu_flags); - p->flags |= AHC_IN_ISR; - do - { - aic7xxx_isr(dev_id); - } while ( (aic_inb(p, INTSTAT) & INT_PEND) ); - aic7xxx_done_cmds_complete(p); - aic7xxx_run_waiting_queues(p); - p->flags &= ~AHC_IN_ISR; - spin_unlock_irqrestore(p->host->host_lock, cpu_flags); - - return IRQ_HANDLED; -} - -/*+F************************************************************************* - * Function: - * aic7xxx_init_transinfo - * - * Description: - * Set up the initial aic_dev values from the BIOS settings and from - * INQUIRY results - *-F*************************************************************************/ -static void -aic7xxx_init_transinfo(struct aic7xxx_host *p, struct aic_dev_data *aic_dev) -{ - struct scsi_device *sdpnt = aic_dev->SDptr; - unsigned char tindex; - - tindex = sdpnt->id | (sdpnt->channel << 3); - if (!(aic_dev->flags & DEVICE_DTR_SCANNED)) - { - aic_dev->flags |= DEVICE_DTR_SCANNED; - - if ( sdpnt->wdtr && (p->features & AHC_WIDE) ) - { - aic_dev->needwdtr = aic_dev->needwdtr_copy = 1; - aic_dev->goal.width = p->user[tindex].width; - } - else - { - aic_dev->needwdtr = aic_dev->needwdtr_copy = 0; - pause_sequencer(p); - aic7xxx_set_width(p, sdpnt->id, sdpnt->channel, sdpnt->lun, - MSG_EXT_WDTR_BUS_8_BIT, (AHC_TRANS_ACTIVE | - AHC_TRANS_GOAL | - AHC_TRANS_CUR), aic_dev ); - unpause_sequencer(p, FALSE); - } - if ( sdpnt->sdtr && p->user[tindex].offset ) - { - aic_dev->goal.period = p->user[tindex].period; - aic_dev->goal.options = p->user[tindex].options; - if (p->features & AHC_ULTRA2) - aic_dev->goal.offset = MAX_OFFSET_ULTRA2; - else if (aic_dev->goal.width == MSG_EXT_WDTR_BUS_16_BIT) - aic_dev->goal.offset = MAX_OFFSET_16BIT; - else - aic_dev->goal.offset = MAX_OFFSET_8BIT; - if ( sdpnt->ppr && p->user[tindex].period <= 9 && - p->user[tindex].options ) - { - aic_dev->needppr = aic_dev->needppr_copy = 1; - aic_dev->needsdtr = aic_dev->needsdtr_copy = 0; - aic_dev->needwdtr = aic_dev->needwdtr_copy = 0; - aic_dev->flags |= DEVICE_SCSI_3; - } - else - { - aic_dev->needsdtr = aic_dev->needsdtr_copy = 1; - aic_dev->goal.period = max_t(unsigned char, 10, aic_dev->goal.period); - aic_dev->goal.options = 0; - } - } - else - { - aic_dev->needsdtr = aic_dev->needsdtr_copy = 0; - aic_dev->goal.period = 255; - aic_dev->goal.offset = 0; - aic_dev->goal.options = 0; - } - aic_dev->flags |= DEVICE_PRINT_DTR; - } -} - -/*+F************************************************************************* - * Function: - * aic7xxx_slave_alloc - * - * Description: - * Set up the initial aic_dev struct pointers - *-F*************************************************************************/ -static int -aic7xxx_slave_alloc(struct scsi_device *SDptr) -{ - struct aic7xxx_host *p = (struct aic7xxx_host *)SDptr->host->hostdata; - struct aic_dev_data *aic_dev; - - aic_dev = kmalloc(sizeof(struct aic_dev_data), GFP_KERNEL); - if(!aic_dev) - return 1; - /* - * Check to see if channel was scanned. - */ - - if (!(p->flags & AHC_A_SCANNED) && (SDptr->channel == 0)) - { - if (aic7xxx_verbose & VERBOSE_PROBE2) - printk(INFO_LEAD "Scanning channel for devices.\n", - p->host_no, 0, -1, -1); - p->flags |= AHC_A_SCANNED; - } - else - { - if (!(p->flags & AHC_B_SCANNED) && (SDptr->channel == 1)) - { - if (aic7xxx_verbose & VERBOSE_PROBE2) - printk(INFO_LEAD "Scanning channel for devices.\n", - p->host_no, 1, -1, -1); - p->flags |= AHC_B_SCANNED; - } - } - - memset(aic_dev, 0, sizeof(struct aic_dev_data)); - SDptr->hostdata = aic_dev; - aic_dev->SDptr = SDptr; - aic_dev->max_q_depth = 1; - aic_dev->temp_q_depth = 1; - scbq_init(&aic_dev->delayed_scbs); - INIT_LIST_HEAD(&aic_dev->list); - list_add_tail(&aic_dev->list, &p->aic_devs); - return 0; -} - -/*+F************************************************************************* - * Function: - * aic7xxx_device_queue_depth - * - * Description: - * Determines the queue depth for a given device. There are two ways - * a queue depth can be obtained for a tagged queueing device. One - * way is the default queue depth which is determined by whether - * aic7xxx_default_queue_depth. The other is by the aic7xxx_tag_info - * array. - * - * If tagged queueing isn't supported on the device, then we set the - * depth to p->host->hostt->cmd_per_lun for internal driver queueing. - * as the default queue depth. Otherwise, we use either 4 or 8 as the - * default queue depth (dependent on the number of hardware SCBs). - * The other way we determine queue depth is through the use of the - * aic7xxx_tag_info array which is enabled by defining - * AIC7XXX_TAGGED_QUEUEING_BY_DEVICE. This array can be initialized - * with queue depths for individual devices. It also allows tagged - * queueing to be [en|dis]abled for a specific adapter. - *-F*************************************************************************/ -static void -aic7xxx_device_queue_depth(struct aic7xxx_host *p, struct scsi_device *device) -{ - int tag_enabled = FALSE; - struct aic_dev_data *aic_dev = device->hostdata; - unsigned char tindex; - - tindex = device->id | (device->channel << 3); - - if (device->simple_tags) - return; // We've already enabled this device - - if (device->tagged_supported) - { - tag_enabled = TRUE; - - if (!(p->discenable & (1 << tindex))) - { - if (aic7xxx_verbose & VERBOSE_NEGOTIATION2) - printk(INFO_LEAD "Disconnection disabled, unable to " - "enable tagged queueing.\n", - p->host_no, device->channel, device->id, device->lun); - tag_enabled = FALSE; - } - else - { - if (p->instance >= ARRAY_SIZE(aic7xxx_tag_info)) - { - static int print_warning = TRUE; - if(print_warning) - { - printk(KERN_INFO "aic7xxx: WARNING, insufficient tag_info instances for" - " installed controllers.\n"); - printk(KERN_INFO "aic7xxx: Please update the aic7xxx_tag_info array in" - " the aic7xxx.c source file.\n"); - print_warning = FALSE; - } - aic_dev->max_q_depth = aic_dev->temp_q_depth = - aic7xxx_default_queue_depth; - } - else - { - - if (aic7xxx_tag_info[p->instance].tag_commands[tindex] == 255) - { - tag_enabled = FALSE; - } - else if (aic7xxx_tag_info[p->instance].tag_commands[tindex] == 0) - { - aic_dev->max_q_depth = aic_dev->temp_q_depth = - aic7xxx_default_queue_depth; - } - else - { - aic_dev->max_q_depth = aic_dev->temp_q_depth = - aic7xxx_tag_info[p->instance].tag_commands[tindex]; - } - } - } - } - if (tag_enabled) - { - if (aic7xxx_verbose & VERBOSE_NEGOTIATION2) - { - printk(INFO_LEAD "Tagged queuing enabled, queue depth %d.\n", - p->host_no, device->channel, device->id, - device->lun, aic_dev->max_q_depth); - } - scsi_adjust_queue_depth(device, MSG_ORDERED_TAG, aic_dev->max_q_depth); - } - else - { - if (aic7xxx_verbose & VERBOSE_NEGOTIATION2) - { - printk(INFO_LEAD "Tagged queuing disabled, queue depth %d.\n", - p->host_no, device->channel, device->id, - device->lun, device->host->cmd_per_lun); - } - scsi_adjust_queue_depth(device, 0, device->host->cmd_per_lun); - } - return; -} - -/*+F************************************************************************* - * Function: - * aic7xxx_slave_destroy - * - * Description: - * prepare for this device to go away - *-F*************************************************************************/ -static void -aic7xxx_slave_destroy(struct scsi_device *SDptr) -{ - struct aic_dev_data *aic_dev = SDptr->hostdata; - - list_del(&aic_dev->list); - SDptr->hostdata = NULL; - kfree(aic_dev); - return; -} - -/*+F************************************************************************* - * Function: - * aic7xxx_slave_configure - * - * Description: - * Configure the device we are attaching to the controller. This is - * where we get to do things like scan the INQUIRY data, set queue - * depths, allocate command structs, etc. - *-F*************************************************************************/ -static int -aic7xxx_slave_configure(struct scsi_device *SDptr) -{ - struct aic7xxx_host *p = (struct aic7xxx_host *) SDptr->host->hostdata; - struct aic_dev_data *aic_dev; - int scbnum; - - aic_dev = (struct aic_dev_data *)SDptr->hostdata; - - aic7xxx_init_transinfo(p, aic_dev); - aic7xxx_device_queue_depth(p, SDptr); - if(list_empty(&aic_dev->list)) - list_add_tail(&aic_dev->list, &p->aic_devs); - - scbnum = 0; - list_for_each_entry(aic_dev, &p->aic_devs, list) { - scbnum += aic_dev->max_q_depth; - } - while (scbnum > p->scb_data->numscbs) - { - /* - * Pre-allocate the needed SCBs to get around the possibility of having - * to allocate some when memory is more or less exhausted and we need - * the SCB in order to perform a swap operation (possible deadlock) - */ - if ( aic7xxx_allocate_scb(p) == 0 ) - break; - } - - - return(0); -} - -/*+F************************************************************************* - * Function: - * aic7xxx_probe - * - * Description: - * Probing for EISA boards: it looks like the first two bytes - * are a manufacturer code - three characters, five bits each: - * - * BYTE 0 BYTE 1 BYTE 2 BYTE 3 - * ?1111122 22233333 PPPPPPPP RRRRRRRR - * - * The characters are baselined off ASCII '@', so add that value - * to each to get the real ASCII code for it. The next two bytes - * appear to be a product and revision number, probably vendor- - * specific. This is what is being searched for at each port, - * and what should probably correspond to the ID= field in the - * ECU's .cfg file for the card - if your card is not detected, - * make sure your signature is listed in the array. - * - * The fourth byte's lowest bit seems to be an enabled/disabled - * flag (rest of the bits are reserved?). - * - * NOTE: This function is only needed on Intel and Alpha platforms, - * the other platforms we support don't have EISA/VLB busses. So, - * we #ifdef this entire function to avoid compiler warnings about - * an unused function. - *-F*************************************************************************/ -#if defined(__i386__) || defined(__alpha__) -static int -aic7xxx_probe(int slot, int base, ahc_flag_type *flags) -{ - int i; - unsigned char buf[4]; - - static struct { - int n; - unsigned char signature[sizeof(buf)]; - ahc_chip type; - int bios_disabled; - } AIC7xxx[] = { - { 4, { 0x04, 0x90, 0x77, 0x70 }, - AHC_AIC7770|AHC_EISA, FALSE }, /* mb 7770 */ - { 4, { 0x04, 0x90, 0x77, 0x71 }, - AHC_AIC7770|AHC_EISA, FALSE }, /* host adapter 274x */ - { 4, { 0x04, 0x90, 0x77, 0x56 }, - AHC_AIC7770|AHC_VL, FALSE }, /* 284x BIOS enabled */ - { 4, { 0x04, 0x90, 0x77, 0x57 }, - AHC_AIC7770|AHC_VL, TRUE } /* 284x BIOS disabled */ - }; - - /* - * The VL-bus cards need to be primed by - * writing before a signature check. - */ - for (i = 0; i < sizeof(buf); i++) - { - outb(0x80 + i, base); - buf[i] = inb(base + i); - } - - for (i = 0; i < ARRAY_SIZE(AIC7xxx); i++) - { - /* - * Signature match on enabled card? - */ - if (!memcmp(buf, AIC7xxx[i].signature, AIC7xxx[i].n)) - { - if (inb(base + 4) & 1) - { - if (AIC7xxx[i].bios_disabled) - { - *flags |= AHC_USEDEFAULTS; - } - else - { - *flags |= AHC_BIOS_ENABLED; - } - return (i); - } - - printk("aic7xxx: <Adaptec 7770 SCSI Host Adapter> " - "disabled at slot %d, ignored.\n", slot); - } - } - - return (-1); -} -#endif /* (__i386__) || (__alpha__) */ - - -/*+F************************************************************************* - * Function: - * read_2840_seeprom - * - * Description: - * Reads the 2840 serial EEPROM and returns 1 if successful and 0 if - * not successful. - * - * See read_seeprom (for the 2940) for the instruction set of the 93C46 - * chip. - * - * The 2840 interface to the 93C46 serial EEPROM is through the - * STATUS_2840 and SEECTL_2840 registers. The CS_2840, CK_2840, and - * DO_2840 bits of the SEECTL_2840 register are connected to the chip - * select, clock, and data out lines respectively of the serial EEPROM. - * The DI_2840 bit of the STATUS_2840 is connected to the data in line - * of the serial EEPROM. The EEPROM_TF bit of STATUS_2840 register is - * useful in that it gives us an 800 nsec timer. After a read from the - * SEECTL_2840 register the timing flag is cleared and goes high 800 nsec - * later. - *-F*************************************************************************/ -static int -read_284x_seeprom(struct aic7xxx_host *p, struct seeprom_config *sc) -{ - int i = 0, k = 0; - unsigned char temp; - unsigned short checksum = 0; - unsigned short *seeprom = (unsigned short *) sc; - struct seeprom_cmd { - unsigned char len; - unsigned char bits[3]; - }; - struct seeprom_cmd seeprom_read = {3, {1, 1, 0}}; - -#define CLOCK_PULSE(p) \ - while ((aic_inb(p, STATUS_2840) & EEPROM_TF) == 0) \ - { \ - ; /* Do nothing */ \ - } \ - (void) aic_inb(p, SEECTL_2840); - - /* - * Read the first 32 registers of the seeprom. For the 2840, - * the 93C46 SEEPROM is a 1024-bit device with 64 16-bit registers - * but only the first 32 are used by Adaptec BIOS. The loop - * will range from 0 to 31. - */ - for (k = 0; k < (sizeof(*sc) / 2); k++) - { - /* - * Send chip select for one clock cycle. - */ - aic_outb(p, CK_2840 | CS_2840, SEECTL_2840); - CLOCK_PULSE(p); - - /* - * Now we're ready to send the read command followed by the - * address of the 16-bit register we want to read. - */ - for (i = 0; i < seeprom_read.len; i++) - { - temp = CS_2840 | seeprom_read.bits[i]; - aic_outb(p, temp, SEECTL_2840); - CLOCK_PULSE(p); - temp = temp ^ CK_2840; - aic_outb(p, temp, SEECTL_2840); - CLOCK_PULSE(p); - } - /* - * Send the 6 bit address (MSB first, LSB last). - */ - for (i = 5; i >= 0; i--) - { - temp = k; - temp = (temp >> i) & 1; /* Mask out all but lower bit. */ - temp = CS_2840 | temp; - aic_outb(p, temp, SEECTL_2840); - CLOCK_PULSE(p); - temp = temp ^ CK_2840; - aic_outb(p, temp, SEECTL_2840); - CLOCK_PULSE(p); - } - - /* - * Now read the 16 bit register. An initial 0 precedes the - * register contents which begins with bit 15 (MSB) and ends - * with bit 0 (LSB). The initial 0 will be shifted off the - * top of our word as we let the loop run from 0 to 16. - */ - for (i = 0; i <= 16; i++) - { - temp = CS_2840; - aic_outb(p, temp, SEECTL_2840); - CLOCK_PULSE(p); - temp = temp ^ CK_2840; - seeprom[k] = (seeprom[k] << 1) | (aic_inb(p, STATUS_2840) & DI_2840); - aic_outb(p, temp, SEECTL_2840); - CLOCK_PULSE(p); - } - /* - * The serial EEPROM has a checksum in the last word. Keep a - * running checksum for all words read except for the last - * word. We'll verify the checksum after all words have been - * read. - */ - if (k < (sizeof(*sc) / 2) - 1) - { - checksum = checksum + seeprom[k]; - } - - /* - * Reset the chip select for the next command cycle. - */ - aic_outb(p, 0, SEECTL_2840); - CLOCK_PULSE(p); - aic_outb(p, CK_2840, SEECTL_2840); - CLOCK_PULSE(p); - aic_outb(p, 0, SEECTL_2840); - CLOCK_PULSE(p); - } - -#if 0 - printk("Computed checksum 0x%x, checksum read 0x%x\n", checksum, sc->checksum); - printk("Serial EEPROM:"); - for (k = 0; k < (sizeof(*sc) / 2); k++) - { - if (((k % 8) == 0) && (k != 0)) - { - printk("\n "); - } - printk(" 0x%x", seeprom[k]); - } - printk("\n"); -#endif - - if (checksum != sc->checksum) - { - printk("aic7xxx: SEEPROM checksum error, ignoring SEEPROM settings.\n"); - return (0); - } - - return (1); -#undef CLOCK_PULSE -} - -#define CLOCK_PULSE(p) \ - do { \ - int limit = 0; \ - do { \ - mb(); \ - pause_sequencer(p); /* This is just to generate some PCI */ \ - /* traffic so the PCI read is flushed */ \ - /* it shouldn't be needed, but some */ \ - /* chipsets do indeed appear to need */ \ - /* something to force PCI reads to get */ \ - /* flushed */ \ - udelay(1); /* Do nothing */ \ - } while (((aic_inb(p, SEECTL) & SEERDY) == 0) && (++limit < 1000)); \ - } while(0) - -/*+F************************************************************************* - * Function: - * acquire_seeprom - * - * Description: - * Acquires access to the memory port on PCI controllers. - *-F*************************************************************************/ -static int -acquire_seeprom(struct aic7xxx_host *p) -{ - - /* - * Request access of the memory port. When access is - * granted, SEERDY will go high. We use a 1 second - * timeout which should be near 1 second more than - * is needed. Reason: after the 7870 chip reset, there - * should be no contention. - */ - aic_outb(p, SEEMS, SEECTL); - CLOCK_PULSE(p); - if ((aic_inb(p, SEECTL) & SEERDY) == 0) - { - aic_outb(p, 0, SEECTL); - return (0); - } - return (1); -} - -/*+F************************************************************************* - * Function: - * release_seeprom - * - * Description: - * Releases access to the memory port on PCI controllers. - *-F*************************************************************************/ -static void -release_seeprom(struct aic7xxx_host *p) -{ - /* - * Make sure the SEEPROM is ready before we release it. - */ - CLOCK_PULSE(p); - aic_outb(p, 0, SEECTL); -} - -/*+F************************************************************************* - * Function: - * read_seeprom - * - * Description: - * Reads the serial EEPROM and returns 1 if successful and 0 if - * not successful. - * - * The instruction set of the 93C46/56/66 chips is as follows: - * - * Start OP - * Function Bit Code Address Data Description - * ------------------------------------------------------------------- - * READ 1 10 A5 - A0 Reads data stored in memory, - * starting at specified address - * EWEN 1 00 11XXXX Write enable must precede - * all programming modes - * ERASE 1 11 A5 - A0 Erase register A5A4A3A2A1A0 - * WRITE 1 01 A5 - A0 D15 - D0 Writes register - * ERAL 1 00 10XXXX Erase all registers - * WRAL 1 00 01XXXX D15 - D0 Writes to all registers - * EWDS 1 00 00XXXX Disables all programming - * instructions - * *Note: A value of X for address is a don't care condition. - * *Note: The 93C56 and 93C66 have 8 address bits. - * - * - * The 93C46 has a four wire interface: clock, chip select, data in, and - * data out. In order to perform one of the above functions, you need - * to enable the chip select for a clock period (typically a minimum of - * 1 usec, with the clock high and low a minimum of 750 and 250 nsec - * respectively. While the chip select remains high, you can clock in - * the instructions (above) starting with the start bit, followed by the - * OP code, Address, and Data (if needed). For the READ instruction, the - * requested 16-bit register contents is read from the data out line but - * is preceded by an initial zero (leading 0, followed by 16-bits, MSB - * first). The clock cycling from low to high initiates the next data - * bit to be sent from the chip. - * - * The 78xx interface to the 93C46 serial EEPROM is through the SEECTL - * register. After successful arbitration for the memory port, the - * SEECS bit of the SEECTL register is connected to the chip select. - * The SEECK, SEEDO, and SEEDI are connected to the clock, data out, - * and data in lines respectively. The SEERDY bit of SEECTL is useful - * in that it gives us an 800 nsec timer. After a write to the SEECTL - * register, the SEERDY goes high 800 nsec later. The one exception - * to this is when we first request access to the memory port. The - * SEERDY goes high to signify that access has been granted and, for - * this case, has no implied timing. - *-F*************************************************************************/ -static int -read_seeprom(struct aic7xxx_host *p, int offset, - unsigned short *scarray, unsigned int len, seeprom_chip_type chip) -{ - int i = 0, k; - unsigned char temp; - unsigned short checksum = 0; - struct seeprom_cmd { - unsigned char len; - unsigned char bits[3]; - }; - struct seeprom_cmd seeprom_read = {3, {1, 1, 0}}; - - /* - * Request access of the memory port. - */ - if (acquire_seeprom(p) == 0) - { - return (0); - } - - /* - * Read 'len' registers of the seeprom. For the 7870, the 93C46 - * SEEPROM is a 1024-bit device with 64 16-bit registers but only - * the first 32 are used by Adaptec BIOS. Some adapters use the - * 93C56 SEEPROM which is a 2048-bit device. The loop will range - * from 0 to 'len' - 1. - */ - for (k = 0; k < len; k++) - { - /* - * Send chip select for one clock cycle. - */ - aic_outb(p, SEEMS | SEECK | SEECS, SEECTL); - CLOCK_PULSE(p); - - /* - * Now we're ready to send the read command followed by the - * address of the 16-bit register we want to read. - */ - for (i = 0; i < seeprom_read.len; i++) - { - temp = SEEMS | SEECS | (seeprom_read.bits[i] << 1); - aic_outb(p, temp, SEECTL); - CLOCK_PULSE(p); - temp = temp ^ SEECK; - aic_outb(p, temp, SEECTL); - CLOCK_PULSE(p); - } - /* - * Send the 6 or 8 bit address (MSB first, LSB last). - */ - for (i = ((int) chip - 1); i >= 0; i--) - { - temp = k + offset; - temp = (temp >> i) & 1; /* Mask out all but lower bit. */ - temp = SEEMS | SEECS | (temp << 1); - aic_outb(p, temp, SEECTL); - CLOCK_PULSE(p); - temp = temp ^ SEECK; - aic_outb(p, temp, SEECTL); - CLOCK_PULSE(p); - } - - /* - * Now read the 16 bit register. An initial 0 precedes the - * register contents which begins with bit 15 (MSB) and ends - * with bit 0 (LSB). The initial 0 will be shifted off the - * top of our word as we let the loop run from 0 to 16. - */ - for (i = 0; i <= 16; i++) - { - temp = SEEMS | SEECS; - aic_outb(p, temp, SEECTL); - CLOCK_PULSE(p); - temp = temp ^ SEECK; - scarray[k] = (scarray[k] << 1) | (aic_inb(p, SEECTL) & SEEDI); - aic_outb(p, temp, SEECTL); - CLOCK_PULSE(p); - } - - /* - * The serial EEPROM should have a checksum in the last word. - * Keep a running checksum for all words read except for the - * last word. We'll verify the checksum after all words have - * been read. - */ - if (k < (len - 1)) - { - checksum = checksum + scarray[k]; - } - - /* - * Reset the chip select for the next command cycle. - */ - aic_outb(p, SEEMS, SEECTL); - CLOCK_PULSE(p); - aic_outb(p, SEEMS | SEECK, SEECTL); - CLOCK_PULSE(p); - aic_outb(p, SEEMS, SEECTL); - CLOCK_PULSE(p); - } - - /* - * Release access to the memory port and the serial EEPROM. - */ - release_seeprom(p); - -#if 0 - printk("Computed checksum 0x%x, checksum read 0x%x\n", - checksum, scarray[len - 1]); - printk("Serial EEPROM:"); - for (k = 0; k < len; k++) - { - if (((k % 8) == 0) && (k != 0)) - { - printk("\n "); - } - printk(" 0x%x", scarray[k]); - } - printk("\n"); -#endif - if ( (checksum != scarray[len - 1]) || (checksum == 0) ) - { - return (0); - } - - return (1); -} - -/*+F************************************************************************* - * Function: - * read_brdctl - * - * Description: - * Reads the BRDCTL register. - *-F*************************************************************************/ -static unsigned char -read_brdctl(struct aic7xxx_host *p) -{ - unsigned char brdctl, value; - - /* - * Make sure the SEEPROM is ready before we access it - */ - CLOCK_PULSE(p); - if (p->features & AHC_ULTRA2) - { - brdctl = BRDRW_ULTRA2; - aic_outb(p, brdctl, BRDCTL); - CLOCK_PULSE(p); - value = aic_inb(p, BRDCTL); - CLOCK_PULSE(p); - return(value); - } - brdctl = BRDRW; - if ( !((p->chip & AHC_CHIPID_MASK) == AHC_AIC7895) || - (p->flags & AHC_CHNLB) ) - { - brdctl |= BRDCS; - } - aic_outb(p, brdctl, BRDCTL); - CLOCK_PULSE(p); - value = aic_inb(p, BRDCTL); - CLOCK_PULSE(p); - aic_outb(p, 0, BRDCTL); - CLOCK_PULSE(p); - return (value); -} - -/*+F************************************************************************* - * Function: - * write_brdctl - * - * Description: - * Writes a value to the BRDCTL register. - *-F*************************************************************************/ -static void -write_brdctl(struct aic7xxx_host *p, unsigned char value) -{ - unsigned char brdctl; - - /* - * Make sure the SEEPROM is ready before we access it - */ - CLOCK_PULSE(p); - if (p->features & AHC_ULTRA2) - { - brdctl = value; - aic_outb(p, brdctl, BRDCTL); - CLOCK_PULSE(p); - brdctl |= BRDSTB_ULTRA2; - aic_outb(p, brdctl, BRDCTL); - CLOCK_PULSE(p); - brdctl &= ~BRDSTB_ULTRA2; - aic_outb(p, brdctl, BRDCTL); - CLOCK_PULSE(p); - read_brdctl(p); - CLOCK_PULSE(p); - } - else - { - brdctl = BRDSTB; - if ( !((p->chip & AHC_CHIPID_MASK) == AHC_AIC7895) || - (p->flags & AHC_CHNLB) ) - { - brdctl |= BRDCS; - } - brdctl = BRDSTB | BRDCS; - aic_outb(p, brdctl, BRDCTL); - CLOCK_PULSE(p); - brdctl |= value; - aic_outb(p, brdctl, BRDCTL); - CLOCK_PULSE(p); - brdctl &= ~BRDSTB; - aic_outb(p, brdctl, BRDCTL); - CLOCK_PULSE(p); - brdctl &= ~BRDCS; - aic_outb(p, brdctl, BRDCTL); - CLOCK_PULSE(p); - } -} - -/*+F************************************************************************* - * Function: - * aic785x_cable_detect - * - * Description: - * Detect the cables that are present on aic785x class controller chips - *-F*************************************************************************/ -static void -aic785x_cable_detect(struct aic7xxx_host *p, int *int_50, - int *ext_present, int *eeprom) -{ - unsigned char brdctl; - - aic_outb(p, BRDRW | BRDCS, BRDCTL); - CLOCK_PULSE(p); - aic_outb(p, 0, BRDCTL); - CLOCK_PULSE(p); - brdctl = aic_inb(p, BRDCTL); - CLOCK_PULSE(p); - *int_50 = !(brdctl & BRDDAT5); - *ext_present = !(brdctl & BRDDAT6); - *eeprom = (aic_inb(p, SPIOCAP) & EEPROM); -} - -#undef CLOCK_PULSE - -/*+F************************************************************************* - * Function: - * aic2940_uwpro_cable_detect - * - * Description: - * Detect the cables that are present on the 2940-UWPro cards - * - * NOTE: This function assumes the SEEPROM will have already been acquired - * prior to invocation of this function. - *-F*************************************************************************/ -static void -aic2940_uwpro_wide_cable_detect(struct aic7xxx_host *p, int *int_68, - int *ext_68, int *eeprom) -{ - unsigned char brdctl; - - /* - * First read the status of our cables. Set the rom bank to - * 0 since the bank setting serves as a multiplexor for the - * cable detection logic. BRDDAT5 controls the bank switch. - */ - write_brdctl(p, 0); - - /* - * Now we read the state of the internal 68 connector. BRDDAT6 - * is don't care, BRDDAT7 is internal 68. The cable is - * present if the bit is 0 - */ - brdctl = read_brdctl(p); - *int_68 = !(brdctl & BRDDAT7); - - /* - * Set the bank bit in brdctl and then read the external cable state - * and the EEPROM status - */ - write_brdctl(p, BRDDAT5); - brdctl = read_brdctl(p); - - *ext_68 = !(brdctl & BRDDAT6); - *eeprom = !(brdctl & BRDDAT7); - - /* - * We're done, the calling function will release the SEEPROM for us - */ -} - -/*+F************************************************************************* - * Function: - * aic787x_cable_detect - * - * Description: - * Detect the cables that are present on aic787x class controller chips - * - * NOTE: This function assumes the SEEPROM will have already been acquired - * prior to invocation of this function. - *-F*************************************************************************/ -static void -aic787x_cable_detect(struct aic7xxx_host *p, int *int_50, int *int_68, - int *ext_present, int *eeprom) -{ - unsigned char brdctl; - - /* - * First read the status of our cables. Set the rom bank to - * 0 since the bank setting serves as a multiplexor for the - * cable detection logic. BRDDAT5 controls the bank switch. - */ - write_brdctl(p, 0); - - /* - * Now we read the state of the two internal connectors. BRDDAT6 - * is internal 50, BRDDAT7 is internal 68. For each, the cable is - * present if the bit is 0 - */ - brdctl = read_brdctl(p); - *int_50 = !(brdctl & BRDDAT6); - *int_68 = !(brdctl & BRDDAT7); - - /* - * Set the bank bit in brdctl and then read the external cable state - * and the EEPROM status - */ - write_brdctl(p, BRDDAT5); - brdctl = read_brdctl(p); - - *ext_present = !(brdctl & BRDDAT6); - *eeprom = !(brdctl & BRDDAT7); - - /* - * We're done, the calling function will release the SEEPROM for us - */ -} - -/*+F************************************************************************* - * Function: - * aic787x_ultra2_term_detect - * - * Description: - * Detect the termination settings present on ultra2 class controllers - * - * NOTE: This function assumes the SEEPROM will have already been acquired - * prior to invocation of this function. - *-F*************************************************************************/ -static void -aic7xxx_ultra2_term_detect(struct aic7xxx_host *p, int *enableSE_low, - int *enableSE_high, int *enableLVD_low, - int *enableLVD_high, int *eprom_present) -{ - unsigned char brdctl; - - brdctl = read_brdctl(p); - - *eprom_present = (brdctl & BRDDAT7); - *enableSE_high = (brdctl & BRDDAT6); - *enableSE_low = (brdctl & BRDDAT5); - *enableLVD_high = (brdctl & BRDDAT4); - *enableLVD_low = (brdctl & BRDDAT3); -} - -/*+F************************************************************************* - * Function: - * configure_termination - * - * Description: - * Configures the termination settings on PCI adapters that have - * SEEPROMs available. - *-F*************************************************************************/ -static void -configure_termination(struct aic7xxx_host *p) -{ - int internal50_present = 0; - int internal68_present = 0; - int external_present = 0; - int eprom_present = 0; - int enableSE_low = 0; - int enableSE_high = 0; - int enableLVD_low = 0; - int enableLVD_high = 0; - unsigned char brddat = 0; - unsigned char max_target = 0; - unsigned char sxfrctl1 = aic_inb(p, SXFRCTL1); - - if (acquire_seeprom(p)) - { - if (p->features & (AHC_WIDE|AHC_TWIN)) - max_target = 16; - else - max_target = 8; - aic_outb(p, SEEMS | SEECS, SEECTL); - sxfrctl1 &= ~STPWEN; - /* - * The termination/cable detection logic is split into three distinct - * groups. Ultra2 and later controllers, 2940UW-Pro controllers, and - * older 7850, 7860, 7870, 7880, and 7895 controllers. Each has its - * own unique way of detecting their cables and writing the results - * back to the card. - */ - if (p->features & AHC_ULTRA2) - { - /* - * As long as user hasn't overridden term settings, always check the - * cable detection logic - */ - if (aic7xxx_override_term == -1) - { - aic7xxx_ultra2_term_detect(p, &enableSE_low, &enableSE_high, - &enableLVD_low, &enableLVD_high, - &eprom_present); - } - - /* - * If the user is overriding settings, then they have been preserved - * to here as fake adapter_control entries. Parse them and allow - * them to override the detected settings (if we even did detection). - */ - if (!(p->adapter_control & CFSEAUTOTERM)) - { - enableSE_low = (p->adapter_control & CFSTERM); - enableSE_high = (p->adapter_control & CFWSTERM); - } - if (!(p->adapter_control & CFAUTOTERM)) - { - enableLVD_low = enableLVD_high = (p->adapter_control & CFLVDSTERM); - } - - /* - * Now take those settings that we have and translate them into the - * values that must be written into the registers. - * - * Flash Enable = BRDDAT7 - * Secondary High Term Enable = BRDDAT6 - * Secondary Low Term Enable = BRDDAT5 - * LVD/Primary High Term Enable = BRDDAT4 - * LVD/Primary Low Term Enable = STPWEN bit in SXFRCTL1 - */ - if (enableLVD_low != 0) - { - sxfrctl1 |= STPWEN; - p->flags |= AHC_TERM_ENB_LVD; - if (aic7xxx_verbose & VERBOSE_PROBE2) - printk(KERN_INFO "(scsi%d) LVD/Primary Low byte termination " - "Enabled\n", p->host_no); - } - - if (enableLVD_high != 0) - { - brddat |= BRDDAT4; - if (aic7xxx_verbose & VERBOSE_PROBE2) - printk(KERN_INFO "(scsi%d) LVD/Primary High byte termination " - "Enabled\n", p->host_no); - } - - if (enableSE_low != 0) - { - brddat |= BRDDAT5; - if (aic7xxx_verbose & VERBOSE_PROBE2) - printk(KERN_INFO "(scsi%d) Secondary Low byte termination " - "Enabled\n", p->host_no); - } - - if (enableSE_high != 0) - { - brddat |= BRDDAT6; - if (aic7xxx_verbose & VERBOSE_PROBE2) - printk(KERN_INFO "(scsi%d) Secondary High byte termination " - "Enabled\n", p->host_no); - } - } - else if (p->features & AHC_NEW_AUTOTERM) - { - /* - * The 50 pin connector termination is controlled by STPWEN in the - * SXFRCTL1 register. Since the Adaptec docs typically say the - * controller is not allowed to be in the middle of a cable and - * this is the only connection on that stub of the bus, there is - * no need to even check for narrow termination, it's simply - * always on. - */ - sxfrctl1 |= STPWEN; - if (aic7xxx_verbose & VERBOSE_PROBE2) - printk(KERN_INFO "(scsi%d) Narrow channel termination Enabled\n", - p->host_no); - - if (p->adapter_control & CFAUTOTERM) - { - aic2940_uwpro_wide_cable_detect(p, &internal68_present, - &external_present, - &eprom_present); - printk(KERN_INFO "(scsi%d) Cables present (Int-50 %s, Int-68 %s, " - "Ext-68 %s)\n", p->host_no, - "Don't Care", - internal68_present ? "YES" : "NO", - external_present ? "YES" : "NO"); - if (aic7xxx_verbose & VERBOSE_PROBE2) - printk(KERN_INFO "(scsi%d) EEPROM %s present.\n", p->host_no, - eprom_present ? "is" : "is not"); - if (internal68_present && external_present) - { - brddat = 0; - p->flags &= ~AHC_TERM_ENB_SE_HIGH; - if (aic7xxx_verbose & VERBOSE_PROBE2) - printk(KERN_INFO "(scsi%d) Wide channel termination Disabled\n", - p->host_no); - } - else - { - brddat = BRDDAT6; - p->flags |= AHC_TERM_ENB_SE_HIGH; - if (aic7xxx_verbose & VERBOSE_PROBE2) - printk(KERN_INFO "(scsi%d) Wide channel termination Enabled\n", - p->host_no); - } - } - else - { - /* - * The termination of the Wide channel is done more like normal - * though, and the setting of this termination is done by writing - * either a 0 or 1 to BRDDAT6 of the BRDDAT register - */ - if (p->adapter_control & CFWSTERM) - { - brddat = BRDDAT6; - p->flags |= AHC_TERM_ENB_SE_HIGH; - if (aic7xxx_verbose & VERBOSE_PROBE2) - printk(KERN_INFO "(scsi%d) Wide channel termination Enabled\n", - p->host_no); - } - else - { - brddat = 0; - } - } - } - else - { - if (p->adapter_control & CFAUTOTERM) - { - if (p->flags & AHC_MOTHERBOARD) - { - printk(KERN_INFO "(scsi%d) Warning - detected auto-termination\n", - p->host_no); - printk(KERN_INFO "(scsi%d) Please verify driver detected settings " - "are correct.\n", p->host_no); - printk(KERN_INFO "(scsi%d) If not, then please properly set the " - "device termination\n", p->host_no); - printk(KERN_INFO "(scsi%d) in the Adaptec SCSI BIOS by hitting " - "CTRL-A when prompted\n", p->host_no); - printk(KERN_INFO "(scsi%d) during machine bootup.\n", p->host_no); - } - /* Configure auto termination. */ - - if ( (p->chip & AHC_CHIPID_MASK) >= AHC_AIC7870 ) - { - aic787x_cable_detect(p, &internal50_present, &internal68_present, - &external_present, &eprom_present); - } - else - { - aic785x_cable_detect(p, &internal50_present, &external_present, - &eprom_present); - } - - if (max_target <= 8) - internal68_present = 0; - - if (max_target > 8) - { - printk(KERN_INFO "(scsi%d) Cables present (Int-50 %s, Int-68 %s, " - "Ext-68 %s)\n", p->host_no, - internal50_present ? "YES" : "NO", - internal68_present ? "YES" : "NO", - external_present ? "YES" : "NO"); - } - else - { - printk(KERN_INFO "(scsi%d) Cables present (Int-50 %s, Ext-50 %s)\n", - p->host_no, - internal50_present ? "YES" : "NO", - external_present ? "YES" : "NO"); - } - if (aic7xxx_verbose & VERBOSE_PROBE2) - printk(KERN_INFO "(scsi%d) EEPROM %s present.\n", p->host_no, - eprom_present ? "is" : "is not"); - - /* - * Now set the termination based on what we found. BRDDAT6 - * controls wide termination enable. - * Flash Enable = BRDDAT7 - * SE High Term Enable = BRDDAT6 - */ - if (internal50_present && internal68_present && external_present) - { - printk(KERN_INFO "(scsi%d) Illegal cable configuration!! Only two\n", - p->host_no); - printk(KERN_INFO "(scsi%d) connectors on the SCSI controller may be " - "in use at a time!\n", p->host_no); - /* - * Force termination (low and high byte) on. This is safer than - * leaving it completely off, especially since this message comes - * most often from motherboard controllers that don't even have 3 - * connectors, but instead are failing the cable detection. - */ - internal50_present = external_present = 0; - enableSE_high = enableSE_low = 1; - } - - if ((max_target > 8) && - ((external_present == 0) || (internal68_present == 0)) ) - { - brddat |= BRDDAT6; - p->flags |= AHC_TERM_ENB_SE_HIGH; - if (aic7xxx_verbose & VERBOSE_PROBE2) - printk(KERN_INFO "(scsi%d) SE High byte termination Enabled\n", - p->host_no); - } - - if ( ((internal50_present ? 1 : 0) + - (internal68_present ? 1 : 0) + - (external_present ? 1 : 0)) <= 1 ) - { - sxfrctl1 |= STPWEN; - p->flags |= AHC_TERM_ENB_SE_LOW; - if (aic7xxx_verbose & VERBOSE_PROBE2) - printk(KERN_INFO "(scsi%d) SE Low byte termination Enabled\n", - p->host_no); - } - } - else /* p->adapter_control & CFAUTOTERM */ - { - if (p->adapter_control & CFSTERM) - { - sxfrctl1 |= STPWEN; - if (aic7xxx_verbose & VERBOSE_PROBE2) - printk(KERN_INFO "(scsi%d) SE Low byte termination Enabled\n", - p->host_no); - } - - if (p->adapter_control & CFWSTERM) - { - brddat |= BRDDAT6; - if (aic7xxx_verbose & VERBOSE_PROBE2) - printk(KERN_INFO "(scsi%d) SE High byte termination Enabled\n", - p->host_no); - } - } - } - - aic_outb(p, sxfrctl1, SXFRCTL1); - write_brdctl(p, brddat); - release_seeprom(p); - } -} - -/*+F************************************************************************* - * Function: - * detect_maxscb - * - * Description: - * Detects the maximum number of SCBs for the controller and returns - * the count and a mask in p (p->maxscbs, p->qcntmask). - *-F*************************************************************************/ -static void -detect_maxscb(struct aic7xxx_host *p) -{ - int i; - - /* - * It's possible that we've already done this for multichannel - * adapters. - */ - if (p->scb_data->maxhscbs == 0) - { - /* - * We haven't initialized the SCB settings yet. Walk the SCBs to - * determince how many there are. - */ - aic_outb(p, 0, FREE_SCBH); - - for (i = 0; i < AIC7XXX_MAXSCB; i++) - { - aic_outb(p, i, SCBPTR); - aic_outb(p, i, SCB_CONTROL); - if (aic_inb(p, SCB_CONTROL) != i) - break; - aic_outb(p, 0, SCBPTR); - if (aic_inb(p, SCB_CONTROL) != 0) - break; - - aic_outb(p, i, SCBPTR); - aic_outb(p, 0, SCB_CONTROL); /* Clear the control byte. */ - aic_outb(p, i + 1, SCB_NEXT); /* Set the next pointer. */ - aic_outb(p, SCB_LIST_NULL, SCB_TAG); /* Make the tag invalid. */ - aic_outb(p, SCB_LIST_NULL, SCB_BUSYTARGETS); /* no busy untagged */ - aic_outb(p, SCB_LIST_NULL, SCB_BUSYTARGETS+1);/* targets active yet */ - aic_outb(p, SCB_LIST_NULL, SCB_BUSYTARGETS+2); - aic_outb(p, SCB_LIST_NULL, SCB_BUSYTARGETS+3); - } - - /* Make sure the last SCB terminates the free list. */ - aic_outb(p, i - 1, SCBPTR); - aic_outb(p, SCB_LIST_NULL, SCB_NEXT); - - /* Ensure we clear the first (0) SCBs control byte. */ - aic_outb(p, 0, SCBPTR); - aic_outb(p, 0, SCB_CONTROL); - - p->scb_data->maxhscbs = i; - /* - * Use direct indexing instead for speed - */ - if ( i == AIC7XXX_MAXSCB ) - p->flags &= ~AHC_PAGESCBS; - } - -} - -/*+F************************************************************************* - * Function: - * aic7xxx_register - * - * Description: - * Register a Adaptec aic7xxx chip SCSI controller with the kernel. - *-F*************************************************************************/ -static int -aic7xxx_register(struct scsi_host_template *template, struct aic7xxx_host *p, - int reset_delay) -{ - int i, result; - int max_targets; - int found = 1; - unsigned char term, scsi_conf; - struct Scsi_Host *host; - - host = p->host; - - p->scb_data->maxscbs = AIC7XXX_MAXSCB; - host->can_queue = AIC7XXX_MAXSCB; - host->cmd_per_lun = 3; - host->sg_tablesize = AIC7XXX_MAX_SG; - host->this_id = p->scsi_id; - host->io_port = p->base; - host->n_io_port = 0xFF; - host->base = p->mbase; - host->irq = p->irq; - if (p->features & AHC_WIDE) - { - host->max_id = 16; - } - if (p->features & AHC_TWIN) - { - host->max_channel = 1; - } - - p->host = host; - p->host_no = host->host_no; - host->unique_id = p->instance; - p->isr_count = 0; - p->next = NULL; - p->completeq.head = NULL; - p->completeq.tail = NULL; - scbq_init(&p->scb_data->free_scbs); - scbq_init(&p->waiting_scbs); - INIT_LIST_HEAD(&p->aic_devs); - - /* - * We currently have no commands of any type - */ - p->qinfifonext = 0; - p->qoutfifonext = 0; - - printk(KERN_INFO "(scsi%d) <%s> found at ", p->host_no, - board_names[p->board_name_index]); - switch(p->chip) - { - case (AHC_AIC7770|AHC_EISA): - printk("EISA slot %d\n", p->pci_device_fn); - break; - case (AHC_AIC7770|AHC_VL): - printk("VLB slot %d\n", p->pci_device_fn); - break; - default: - printk("PCI %d/%d/%d\n", p->pci_bus, PCI_SLOT(p->pci_device_fn), - PCI_FUNC(p->pci_device_fn)); - break; - } - if (p->features & AHC_TWIN) - { - printk(KERN_INFO "(scsi%d) Twin Channel, A SCSI ID %d, B SCSI ID %d, ", - p->host_no, p->scsi_id, p->scsi_id_b); - } - else - { - char *channel; - - channel = ""; - - if ((p->flags & AHC_MULTI_CHANNEL) != 0) - { - channel = " A"; - - if ( (p->flags & (AHC_CHNLB|AHC_CHNLC)) != 0 ) - { - channel = (p->flags & AHC_CHNLB) ? " B" : " C"; - } - } - if (p->features & AHC_WIDE) - { - printk(KERN_INFO "(scsi%d) Wide ", p->host_no); - } - else - { - printk(KERN_INFO "(scsi%d) Narrow ", p->host_no); - } - printk("Channel%s, SCSI ID=%d, ", channel, p->scsi_id); - } - aic_outb(p, 0, SEQ_FLAGS); - - detect_maxscb(p); - - printk("%d/%d SCBs\n", p->scb_data->maxhscbs, p->scb_data->maxscbs); - if (aic7xxx_verbose & VERBOSE_PROBE2) - { - printk(KERN_INFO "(scsi%d) BIOS %sabled, IO Port 0x%lx, IRQ %d\n", - p->host_no, (p->flags & AHC_BIOS_ENABLED) ? "en" : "dis", - p->base, p->irq); - printk(KERN_INFO "(scsi%d) IO Memory at 0x%lx, MMAP Memory at %p\n", - p->host_no, p->mbase, p->maddr); - } - -#ifdef CONFIG_PCI - /* - * Now that we know our instance number, we can set the flags we need to - * force termination if need be. - */ - if (aic7xxx_stpwlev != -1) - { - /* - * This option only applies to PCI controllers. - */ - if ( (p->chip & ~AHC_CHIPID_MASK) == AHC_PCI) - { - unsigned char devconfig; - - pci_read_config_byte(p->pdev, DEVCONFIG, &devconfig); - if ( (aic7xxx_stpwlev >> p->instance) & 0x01 ) - { - devconfig |= STPWLEVEL; - if (aic7xxx_verbose & VERBOSE_PROBE2) - printk("(scsi%d) Force setting STPWLEVEL bit\n", p->host_no); - } - else - { - devconfig &= ~STPWLEVEL; - if (aic7xxx_verbose & VERBOSE_PROBE2) - printk("(scsi%d) Force clearing STPWLEVEL bit\n", p->host_no); - } - pci_write_config_byte(p->pdev, DEVCONFIG, devconfig); - } - } -#endif - - /* - * That took care of devconfig and stpwlev, now for the actual termination - * settings. - */ - if (aic7xxx_override_term != -1) - { - /* - * Again, this only applies to PCI controllers. We don't have problems - * with the termination on 274x controllers to the best of my knowledge. - */ - if ( (p->chip & ~AHC_CHIPID_MASK) == AHC_PCI) - { - unsigned char term_override; - - term_override = ( (aic7xxx_override_term >> (p->instance * 4)) & 0x0f); - p->adapter_control &= - ~(CFSTERM|CFWSTERM|CFLVDSTERM|CFAUTOTERM|CFSEAUTOTERM); - if ( (p->features & AHC_ULTRA2) && (term_override & 0x0c) ) - { - p->adapter_control |= CFLVDSTERM; - } - if (term_override & 0x02) - { - p->adapter_control |= CFWSTERM; - } - if (term_override & 0x01) - { - p->adapter_control |= CFSTERM; - } - } - } - - if ( (p->flags & AHC_SEEPROM_FOUND) || (aic7xxx_override_term != -1) ) - { - if (p->features & AHC_SPIOCAP) - { - if ( aic_inb(p, SPIOCAP) & SSPIOCPS ) - /* - * Update the settings in sxfrctl1 to match the termination - * settings. - */ - configure_termination(p); - } - else if ((p->chip & AHC_CHIPID_MASK) >= AHC_AIC7870) - { - configure_termination(p); - } - } - - /* - * Set the SCSI Id, SXFRCTL0, SXFRCTL1, and SIMODE1, for both channels - */ - if (p->features & AHC_TWIN) - { - /* Select channel B */ - aic_outb(p, aic_inb(p, SBLKCTL) | SELBUSB, SBLKCTL); - - if ((p->flags & AHC_SEEPROM_FOUND) || (aic7xxx_override_term != -1)) - term = (aic_inb(p, SXFRCTL1) & STPWEN); - else - term = ((p->flags & AHC_TERM_ENB_B) ? STPWEN : 0); - - aic_outb(p, p->scsi_id_b, SCSIID); - scsi_conf = aic_inb(p, SCSICONF + 1); - aic_outb(p, DFON | SPIOEN, SXFRCTL0); - aic_outb(p, (scsi_conf & ENSPCHK) | aic7xxx_seltime | term | - ENSTIMER | ACTNEGEN, SXFRCTL1); - aic_outb(p, 0, SIMODE0); - aic_outb(p, ENSELTIMO | ENSCSIRST | ENSCSIPERR, SIMODE1); - aic_outb(p, 0, SCSIRATE); - - /* Select channel A */ - aic_outb(p, aic_inb(p, SBLKCTL) & ~SELBUSB, SBLKCTL); - } - - if (p->features & AHC_ULTRA2) - { - aic_outb(p, p->scsi_id, SCSIID_ULTRA2); - } - else - { - aic_outb(p, p->scsi_id, SCSIID); - } - if ((p->flags & AHC_SEEPROM_FOUND) || (aic7xxx_override_term != -1)) - term = (aic_inb(p, SXFRCTL1) & STPWEN); - else - term = ((p->flags & (AHC_TERM_ENB_A|AHC_TERM_ENB_LVD)) ? STPWEN : 0); - scsi_conf = aic_inb(p, SCSICONF); - aic_outb(p, DFON | SPIOEN, SXFRCTL0); - aic_outb(p, (scsi_conf & ENSPCHK) | aic7xxx_seltime | term | - ENSTIMER | ACTNEGEN, SXFRCTL1); - aic_outb(p, 0, SIMODE0); - /* - * If we are a cardbus adapter then don't enable SCSI reset detection. - * We shouldn't likely be sharing SCSI busses with someone else, and - * if we don't have a cable currently plugged into the controller then - * we won't have a power source for the SCSI termination, which means - * we'll see infinite incoming bus resets. - */ - if(p->flags & AHC_NO_STPWEN) - aic_outb(p, ENSELTIMO | ENSCSIPERR, SIMODE1); - else - aic_outb(p, ENSELTIMO | ENSCSIRST | ENSCSIPERR, SIMODE1); - aic_outb(p, 0, SCSIRATE); - if ( p->features & AHC_ULTRA2) - aic_outb(p, 0, SCSIOFFSET); - - /* - * Look at the information that board initialization or the board - * BIOS has left us. In the lower four bits of each target's - * scratch space any value other than 0 indicates that we should - * initiate synchronous transfers. If it's zero, the user or the - * BIOS has decided to disable synchronous negotiation to that - * target so we don't activate the needsdtr flag. - */ - if ((p->features & (AHC_TWIN|AHC_WIDE)) == 0) - { - max_targets = 8; - } - else - { - max_targets = 16; - } - - if (!(aic7xxx_no_reset)) - { - /* - * If we reset the bus, then clear the transfer settings, else leave - * them be. - */ - aic_outb(p, 0, ULTRA_ENB); - aic_outb(p, 0, ULTRA_ENB + 1); - p->ultraenb = 0; - } - - /* - * Allocate enough hardware scbs to handle the maximum number of - * concurrent transactions we can have. We have to make sure that - * the allocated memory is contiguous memory. The Linux kmalloc - * routine should only allocate contiguous memory, but note that - * this could be a problem if kmalloc() is changed. - */ - { - size_t array_size; - unsigned int hscb_physaddr; - - array_size = p->scb_data->maxscbs * sizeof(struct aic7xxx_hwscb); - if (p->scb_data->hscbs == NULL) - { - /* pci_alloc_consistent enforces the alignment already and - * clears the area as well. - */ - p->scb_data->hscbs = pci_alloc_consistent(p->pdev, array_size, - &p->scb_data->hscbs_dma); - /* We have to use pci_free_consistent, not kfree */ - p->scb_data->hscb_kmalloc_ptr = NULL; - p->scb_data->hscbs_dma_len = array_size; - } - if (p->scb_data->hscbs == NULL) - { - printk("(scsi%d) Unable to allocate hardware SCB array; " - "failing detection.\n", p->host_no); - aic_outb(p, 0, SIMODE1); - p->irq = 0; - return(0); - } - - hscb_physaddr = p->scb_data->hscbs_dma; - aic_outb(p, hscb_physaddr & 0xFF, HSCB_ADDR); - aic_outb(p, (hscb_physaddr >> 8) & 0xFF, HSCB_ADDR + 1); - aic_outb(p, (hscb_physaddr >> 16) & 0xFF, HSCB_ADDR + 2); - aic_outb(p, (hscb_physaddr >> 24) & 0xFF, HSCB_ADDR + 3); - - /* Set up the fifo areas at the same time */ - p->untagged_scbs = pci_alloc_consistent(p->pdev, 3*256, &p->fifo_dma); - if (p->untagged_scbs == NULL) - { - printk("(scsi%d) Unable to allocate hardware FIFO arrays; " - "failing detection.\n", p->host_no); - p->irq = 0; - return(0); - } - - p->qoutfifo = p->untagged_scbs + 256; - p->qinfifo = p->qoutfifo + 256; - for (i = 0; i < 256; i++) - { - p->untagged_scbs[i] = SCB_LIST_NULL; - p->qinfifo[i] = SCB_LIST_NULL; - p->qoutfifo[i] = SCB_LIST_NULL; - } - - hscb_physaddr = p->fifo_dma; - aic_outb(p, hscb_physaddr & 0xFF, SCBID_ADDR); - aic_outb(p, (hscb_physaddr >> 8) & 0xFF, SCBID_ADDR + 1); - aic_outb(p, (hscb_physaddr >> 16) & 0xFF, SCBID_ADDR + 2); - aic_outb(p, (hscb_physaddr >> 24) & 0xFF, SCBID_ADDR + 3); - } - - /* The Q-FIFOs we just set up are all empty */ - aic_outb(p, 0, QINPOS); - aic_outb(p, 0, KERNEL_QINPOS); - aic_outb(p, 0, QOUTPOS); - - if(p->features & AHC_QUEUE_REGS) - { - aic_outb(p, SCB_QSIZE_256, QOFF_CTLSTA); - aic_outb(p, 0, SDSCB_QOFF); - aic_outb(p, 0, SNSCB_QOFF); - aic_outb(p, 0, HNSCB_QOFF); - } - - /* - * We don't have any waiting selections or disconnected SCBs. - */ - aic_outb(p, SCB_LIST_NULL, WAITING_SCBH); - aic_outb(p, SCB_LIST_NULL, DISCONNECTED_SCBH); - - /* - * Message out buffer starts empty - */ - aic_outb(p, MSG_NOOP, MSG_OUT); - aic_outb(p, MSG_NOOP, LAST_MSG); - - /* - * Set all the other asundry items that haven't been set yet. - * This includes just dumping init values to a lot of registers simply - * to make sure they've been touched and are ready for use parity wise - * speaking. - */ - aic_outb(p, 0, TMODE_CMDADDR); - aic_outb(p, 0, TMODE_CMDADDR + 1); - aic_outb(p, 0, TMODE_CMDADDR + 2); - aic_outb(p, 0, TMODE_CMDADDR + 3); - aic_outb(p, 0, TMODE_CMDADDR_NEXT); - - /* - * Link us into the list of valid hosts - */ - p->next = first_aic7xxx; - first_aic7xxx = p; - - /* - * Allocate the first set of scbs for this controller. This is to stream- - * line code elsewhere in the driver. If we have to check for the existence - * of scbs in certain code sections, it slows things down. However, as - * soon as we register the IRQ for this card, we could get an interrupt that - * includes possibly the SCSI_RSTI interrupt. If we catch that interrupt - * then we are likely to segfault if we don't have at least one chunk of - * SCBs allocated or add checks all through the reset code to make sure - * that the SCBs have been allocated which is an invalid running condition - * and therefore I think it's preferable to simply pre-allocate the first - * chunk of SCBs. - */ - aic7xxx_allocate_scb(p); - - /* - * Load the sequencer program, then re-enable the board - - * resetting the AIC-7770 disables it, leaving the lights - * on with nobody home. - */ - aic7xxx_loadseq(p); - - /* - * Make sure the AUTOFLUSHDIS bit is *not* set in the SBLKCTL register - */ - aic_outb(p, aic_inb(p, SBLKCTL) & ~AUTOFLUSHDIS, SBLKCTL); - - if ( (p->chip & AHC_CHIPID_MASK) == AHC_AIC7770 ) - { - aic_outb(p, ENABLE, BCTL); /* Enable the boards BUS drivers. */ - } - - if ( !(aic7xxx_no_reset) ) - { - if (p->features & AHC_TWIN) - { - if (aic7xxx_verbose & VERBOSE_PROBE2) - printk(KERN_INFO "(scsi%d) Resetting channel B\n", p->host_no); - aic_outb(p, aic_inb(p, SBLKCTL) | SELBUSB, SBLKCTL); - aic7xxx_reset_current_bus(p); - aic_outb(p, aic_inb(p, SBLKCTL) & ~SELBUSB, SBLKCTL); - } - /* Reset SCSI bus A. */ - if (aic7xxx_verbose & VERBOSE_PROBE2) - { /* In case we are a 3940, 3985, or 7895, print the right channel */ - char *channel = ""; - if (p->flags & AHC_MULTI_CHANNEL) - { - channel = " A"; - if (p->flags & (AHC_CHNLB|AHC_CHNLC)) - channel = (p->flags & AHC_CHNLB) ? " B" : " C"; - } - printk(KERN_INFO "(scsi%d) Resetting channel%s\n", p->host_no, channel); - } - - aic7xxx_reset_current_bus(p); - - } - else - { - if (!reset_delay) - { - printk(KERN_INFO "(scsi%d) Not resetting SCSI bus. Note: Don't use " - "the no_reset\n", p->host_no); - printk(KERN_INFO "(scsi%d) option unless you have a verifiable need " - "for it.\n", p->host_no); - } - } - - /* - * Register IRQ with the kernel. Only allow sharing IRQs with - * PCI devices. - */ - if (!(p->chip & AHC_PCI)) - { - result = (request_irq(p->irq, do_aic7xxx_isr, 0, "aic7xxx", p)); - } - else - { - result = (request_irq(p->irq, do_aic7xxx_isr, IRQF_SHARED, - "aic7xxx", p)); - if (result < 0) - { - result = (request_irq(p->irq, do_aic7xxx_isr, IRQF_DISABLED | IRQF_SHARED, - "aic7xxx", p)); - } - } - if (result < 0) - { - printk(KERN_WARNING "(scsi%d) Couldn't register IRQ %d, ignoring " - "controller.\n", p->host_no, p->irq); - aic_outb(p, 0, SIMODE1); - p->irq = 0; - return (0); - } - - if(aic_inb(p, INTSTAT) & INT_PEND) - printk(INFO_LEAD "spurious interrupt during configuration, cleared.\n", - p->host_no, -1, -1 , -1); - aic7xxx_clear_intstat(p); - - unpause_sequencer(p, /* unpause_always */ TRUE); - - return (found); -} - -/*+F************************************************************************* - * Function: - * aic7xxx_chip_reset - * - * Description: - * Perform a chip reset on the aic7xxx SCSI controller. The controller - * is paused upon return. - *-F*************************************************************************/ -static int -aic7xxx_chip_reset(struct aic7xxx_host *p) -{ - unsigned char sblkctl; - int wait; - - /* - * For some 274x boards, we must clear the CHIPRST bit and pause - * the sequencer. For some reason, this makes the driver work. - */ - aic_outb(p, PAUSE | CHIPRST, HCNTRL); - - /* - * In the future, we may call this function as a last resort for - * error handling. Let's be nice and not do any unnecessary delays. - */ - wait = 1000; /* 1 msec (1000 * 1 msec) */ - while (--wait && !(aic_inb(p, HCNTRL) & CHIPRSTACK)) - { - udelay(1); /* 1 usec */ - } - - pause_sequencer(p); - - sblkctl = aic_inb(p, SBLKCTL) & (SELBUSB|SELWIDE); - if (p->chip & AHC_PCI) - sblkctl &= ~SELBUSB; - switch( sblkctl ) - { - case 0: /* normal narrow card */ - break; - case 2: /* Wide card */ - p->features |= AHC_WIDE; - break; - case 8: /* Twin card */ - p->features |= AHC_TWIN; - p->flags |= AHC_MULTI_CHANNEL; - break; - default: /* hmmm...we don't know what this is */ - printk(KERN_WARNING "aic7xxx: Unsupported adapter type %d, ignoring.\n", - aic_inb(p, SBLKCTL) & 0x0a); - return(-1); - } - return(0); -} - -/*+F************************************************************************* - * Function: - * aic7xxx_alloc - * - * Description: - * Allocate and initialize a host structure. Returns NULL upon error - * and a pointer to a aic7xxx_host struct upon success. - *-F*************************************************************************/ -static struct aic7xxx_host * -aic7xxx_alloc(struct scsi_host_template *sht, struct aic7xxx_host *temp) -{ - struct aic7xxx_host *p = NULL; - struct Scsi_Host *host; - - /* - * Allocate a storage area by registering us with the mid-level - * SCSI layer. - */ - host = scsi_register(sht, sizeof(struct aic7xxx_host)); - - if (host != NULL) - { - p = (struct aic7xxx_host *) host->hostdata; - memset(p, 0, sizeof(struct aic7xxx_host)); - *p = *temp; - p->host = host; - - p->scb_data = kzalloc(sizeof(scb_data_type), GFP_ATOMIC); - if (p->scb_data) - { - scbq_init (&p->scb_data->free_scbs); - } - else - { - /* - * For some reason we don't have enough memory. Free the - * allocated memory for the aic7xxx_host struct, and return NULL. - */ - release_region(p->base, MAXREG - MINREG); - scsi_unregister(host); - return(NULL); - } - p->host_no = host->host_no; - } - return (p); -} - -/*+F************************************************************************* - * Function: - * aic7xxx_free - * - * Description: - * Frees and releases all resources associated with an instance of - * the driver (struct aic7xxx_host *). - *-F*************************************************************************/ -static void -aic7xxx_free(struct aic7xxx_host *p) -{ - int i; - - /* - * Free the allocated hardware SCB space. - */ - if (p->scb_data != NULL) - { - struct aic7xxx_scb_dma *scb_dma = NULL; - if (p->scb_data->hscbs != NULL) - { - pci_free_consistent(p->pdev, p->scb_data->hscbs_dma_len, - p->scb_data->hscbs, p->scb_data->hscbs_dma); - p->scb_data->hscbs = p->scb_data->hscb_kmalloc_ptr = NULL; - } - /* - * Free the driver SCBs. These were allocated on an as-need - * basis. We allocated these in groups depending on how many - * we could fit into a given amount of RAM. The tail SCB for - * these allocations has a pointer to the alloced area. - */ - for (i = 0; i < p->scb_data->numscbs; i++) - { - if (p->scb_data->scb_array[i]->scb_dma != scb_dma) - { - scb_dma = p->scb_data->scb_array[i]->scb_dma; - pci_free_consistent(p->pdev, scb_dma->dma_len, - (void *)((unsigned long)scb_dma->dma_address - - scb_dma->dma_offset), - scb_dma->dma_address); - } - kfree(p->scb_data->scb_array[i]->kmalloc_ptr); - p->scb_data->scb_array[i] = NULL; - } - - /* - * Free the SCB data area. - */ - kfree(p->scb_data); - } - - pci_free_consistent(p->pdev, 3*256, (void *)p->untagged_scbs, p->fifo_dma); -} - -/*+F************************************************************************* - * Function: - * aic7xxx_load_seeprom - * - * Description: - * Load the seeprom and configure adapter and target settings. - * Returns 1 if the load was successful and 0 otherwise. - *-F*************************************************************************/ -static void -aic7xxx_load_seeprom(struct aic7xxx_host *p, unsigned char *sxfrctl1) -{ - int have_seeprom = 0; - int i, max_targets, mask; - unsigned char scsirate, scsi_conf; - unsigned short scarray[128]; - struct seeprom_config *sc = (struct seeprom_config *) scarray; - - if (aic7xxx_verbose & VERBOSE_PROBE2) - { - printk(KERN_INFO "aic7xxx: Loading serial EEPROM..."); - } - switch (p->chip) - { - case (AHC_AIC7770|AHC_EISA): /* None of these adapters have seeproms. */ - if (aic_inb(p, SCSICONF) & TERM_ENB) - p->flags |= AHC_TERM_ENB_A; - if ( (p->features & AHC_TWIN) && (aic_inb(p, SCSICONF + 1) & TERM_ENB) ) - p->flags |= AHC_TERM_ENB_B; - break; - - case (AHC_AIC7770|AHC_VL): - have_seeprom = read_284x_seeprom(p, (struct seeprom_config *) scarray); - break; - - default: - have_seeprom = read_seeprom(p, (p->flags & (AHC_CHNLB|AHC_CHNLC)), - scarray, p->sc_size, p->sc_type); - if (!have_seeprom) - { - if(p->sc_type == C46) - have_seeprom = read_seeprom(p, (p->flags & (AHC_CHNLB|AHC_CHNLC)), - scarray, p->sc_size, C56_66); - else - have_seeprom = read_seeprom(p, (p->flags & (AHC_CHNLB|AHC_CHNLC)), - scarray, p->sc_size, C46); - } - if (!have_seeprom) - { - p->sc_size = 128; - have_seeprom = read_seeprom(p, 4*(p->flags & (AHC_CHNLB|AHC_CHNLC)), - scarray, p->sc_size, p->sc_type); - if (!have_seeprom) - { - if(p->sc_type == C46) - have_seeprom = read_seeprom(p, 4*(p->flags & (AHC_CHNLB|AHC_CHNLC)), - scarray, p->sc_size, C56_66); - else - have_seeprom = read_seeprom(p, 4*(p->flags & (AHC_CHNLB|AHC_CHNLC)), - scarray, p->sc_size, C46); - } - } - break; - } - - if (!have_seeprom) - { - if (aic7xxx_verbose & VERBOSE_PROBE2) - { - printk("\naic7xxx: No SEEPROM available.\n"); - } - p->flags |= AHC_NEWEEPROM_FMT; - if (aic_inb(p, SCSISEQ) == 0) - { - p->flags |= AHC_USEDEFAULTS; - p->flags &= ~AHC_BIOS_ENABLED; - p->scsi_id = p->scsi_id_b = 7; - *sxfrctl1 |= STPWEN; - if (aic7xxx_verbose & VERBOSE_PROBE2) - { - printk("aic7xxx: Using default values.\n"); - } - } - else if (aic7xxx_verbose & VERBOSE_PROBE2) - { - printk("aic7xxx: Using leftover BIOS values.\n"); - } - if ( ((p->chip & ~AHC_CHIPID_MASK) == AHC_PCI) && (*sxfrctl1 & STPWEN) ) - { - p->flags |= AHC_TERM_ENB_SE_LOW | AHC_TERM_ENB_SE_HIGH; - sc->adapter_control &= ~CFAUTOTERM; - sc->adapter_control |= CFSTERM | CFWSTERM | CFLVDSTERM; - } - if (aic7xxx_extended) - p->flags |= (AHC_EXTEND_TRANS_A | AHC_EXTEND_TRANS_B); - else - p->flags &= ~(AHC_EXTEND_TRANS_A | AHC_EXTEND_TRANS_B); - } - else - { - if (aic7xxx_verbose & VERBOSE_PROBE2) - { - printk("done\n"); - } - - /* - * Note things in our flags - */ - p->flags |= AHC_SEEPROM_FOUND; - - /* - * Update the settings in sxfrctl1 to match the termination settings. - */ - *sxfrctl1 = 0; - - /* - * Get our SCSI ID from the SEEPROM setting... - */ - p->scsi_id = (sc->brtime_id & CFSCSIID); - - /* - * First process the settings that are different between the VLB - * and PCI adapter seeproms. - */ - if ((p->chip & AHC_CHIPID_MASK) == AHC_AIC7770) - { - /* VLB adapter seeproms */ - if (sc->bios_control & CF284XEXTEND) - p->flags |= AHC_EXTEND_TRANS_A; - - if (sc->adapter_control & CF284XSTERM) - { - *sxfrctl1 |= STPWEN; - p->flags |= AHC_TERM_ENB_SE_LOW | AHC_TERM_ENB_SE_HIGH; - } - } - else - { - /* PCI adapter seeproms */ - if (sc->bios_control & CFEXTEND) - p->flags |= AHC_EXTEND_TRANS_A; - if (sc->bios_control & CFBIOSEN) - p->flags |= AHC_BIOS_ENABLED; - else - p->flags &= ~AHC_BIOS_ENABLED; - - if (sc->adapter_control & CFSTERM) - { - *sxfrctl1 |= STPWEN; - p->flags |= AHC_TERM_ENB_SE_LOW | AHC_TERM_ENB_SE_HIGH; - } - } - memcpy(&p->sc, sc, sizeof(struct seeprom_config)); - } - - p->discenable = 0; - - /* - * Limit to 16 targets just in case. The 2842 for one is known to - * blow the max_targets setting, future cards might also. - */ - max_targets = ((p->features & (AHC_TWIN | AHC_WIDE)) ? 16 : 8); - - if (have_seeprom) - { - for (i = 0; i < max_targets; i++) - { - if( ((p->features & AHC_ULTRA) && - !(sc->adapter_control & CFULTRAEN) && - (sc->device_flags[i] & CFSYNCHISULTRA)) || - (sc->device_flags[i] & CFNEWULTRAFORMAT) ) - { - p->flags |= AHC_NEWEEPROM_FMT; - break; - } - } - } - - for (i = 0; i < max_targets; i++) - { - mask = (0x01 << i); - if (!have_seeprom) - { - if (aic_inb(p, SCSISEQ) != 0) - { - /* - * OK...the BIOS set things up and left behind the settings we need. - * Just make our sc->device_flags[i] entry match what the card has - * set for this device. - */ - p->discenable = - ~(aic_inb(p, DISC_DSB) | (aic_inb(p, DISC_DSB + 1) << 8) ); - p->ultraenb = - (aic_inb(p, ULTRA_ENB) | (aic_inb(p, ULTRA_ENB + 1) << 8) ); - sc->device_flags[i] = (p->discenable & mask) ? CFDISC : 0; - if (aic_inb(p, TARG_SCSIRATE + i) & WIDEXFER) - sc->device_flags[i] |= CFWIDEB; - if (p->features & AHC_ULTRA2) - { - if (aic_inb(p, TARG_OFFSET + i)) - { - sc->device_flags[i] |= CFSYNCH; - sc->device_flags[i] |= (aic_inb(p, TARG_SCSIRATE + i) & 0x07); - if ( (aic_inb(p, TARG_SCSIRATE + i) & 0x18) == 0x18 ) - sc->device_flags[i] |= CFSYNCHISULTRA; - } - } - else - { - if (aic_inb(p, TARG_SCSIRATE + i) & ~WIDEXFER) - { - sc->device_flags[i] |= CFSYNCH; - if (p->features & AHC_ULTRA) - sc->device_flags[i] |= ((p->ultraenb & mask) ? - CFSYNCHISULTRA : 0); - } - } - } - else - { - /* - * Assume the BIOS has NOT been run on this card and nothing between - * the card and the devices is configured yet. - */ - sc->device_flags[i] = CFDISC; - if (p->features & AHC_WIDE) - sc->device_flags[i] |= CFWIDEB; - if (p->features & AHC_ULTRA3) - sc->device_flags[i] |= 2; - else if (p->features & AHC_ULTRA2) - sc->device_flags[i] |= 3; - else if (p->features & AHC_ULTRA) - sc->device_flags[i] |= CFSYNCHISULTRA; - sc->device_flags[i] |= CFSYNCH; - aic_outb(p, 0, TARG_SCSIRATE + i); - if (p->features & AHC_ULTRA2) - aic_outb(p, 0, TARG_OFFSET + i); - } - } - if (sc->device_flags[i] & CFDISC) - { - p->discenable |= mask; - } - if (p->flags & AHC_NEWEEPROM_FMT) - { - if ( !(p->features & AHC_ULTRA2) ) - { - /* - * I know of two different Ultra BIOSes that do this differently. - * One on the Gigabyte 6BXU mb that wants flags[i] & CFXFER to - * be == to 0x03 and SYNCHISULTRA to be true to mean 40MByte/s - * while on the IBM Netfinity 5000 they want the same thing - * to be something else, while flags[i] & CFXFER == 0x03 and - * SYNCHISULTRA false should be 40MByte/s. So, we set both to - * 40MByte/s and the lower speeds be damned. People will have - * to select around the conversely mapped lower speeds in order - * to select lower speeds on these boards. - */ - if ( (sc->device_flags[i] & CFNEWULTRAFORMAT) && - ((sc->device_flags[i] & CFXFER) == 0x03) ) - { - sc->device_flags[i] &= ~CFXFER; - sc->device_flags[i] |= CFSYNCHISULTRA; - } - if (sc->device_flags[i] & CFSYNCHISULTRA) - { - p->ultraenb |= mask; - } - } - else if ( !(sc->device_flags[i] & CFNEWULTRAFORMAT) && - (p->features & AHC_ULTRA2) && - (sc->device_flags[i] & CFSYNCHISULTRA) ) - { - p->ultraenb |= mask; - } - } - else if (sc->adapter_control & CFULTRAEN) - { - p->ultraenb |= mask; - } - if ( (sc->device_flags[i] & CFSYNCH) == 0) - { - sc->device_flags[i] &= ~CFXFER; - p->ultraenb &= ~mask; - p->user[i].offset = 0; - p->user[i].period = 0; - p->user[i].options = 0; - } - else - { - if (p->features & AHC_ULTRA3) - { - p->user[i].offset = MAX_OFFSET_ULTRA2; - if( (sc->device_flags[i] & CFXFER) < 0x03 ) - { - scsirate = (sc->device_flags[i] & CFXFER); - p->user[i].options = MSG_EXT_PPR_OPTION_DT_CRC; - } - else - { - scsirate = (sc->device_flags[i] & CFXFER) | - ((p->ultraenb & mask) ? 0x18 : 0x10); - p->user[i].options = 0; - } - p->user[i].period = aic7xxx_find_period(p, scsirate, - AHC_SYNCRATE_ULTRA3); - } - else if (p->features & AHC_ULTRA2) - { - p->user[i].offset = MAX_OFFSET_ULTRA2; - scsirate = (sc->device_flags[i] & CFXFER) | - ((p->ultraenb & mask) ? 0x18 : 0x10); - p->user[i].options = 0; - p->user[i].period = aic7xxx_find_period(p, scsirate, - AHC_SYNCRATE_ULTRA2); - } - else - { - scsirate = (sc->device_flags[i] & CFXFER) << 4; - p->user[i].options = 0; - p->user[i].offset = MAX_OFFSET_8BIT; - if (p->features & AHC_ULTRA) - { - short ultraenb; - ultraenb = aic_inb(p, ULTRA_ENB) | - (aic_inb(p, ULTRA_ENB + 1) << 8); - p->user[i].period = aic7xxx_find_period(p, scsirate, - (p->ultraenb & mask) ? - AHC_SYNCRATE_ULTRA : - AHC_SYNCRATE_FAST); - } - else - p->user[i].period = aic7xxx_find_period(p, scsirate, - AHC_SYNCRATE_FAST); - } - } - if ( (sc->device_flags[i] & CFWIDEB) && (p->features & AHC_WIDE) ) - { - p->user[i].width = MSG_EXT_WDTR_BUS_16_BIT; - } - else - { - p->user[i].width = MSG_EXT_WDTR_BUS_8_BIT; - } - } - aic_outb(p, ~(p->discenable & 0xFF), DISC_DSB); - aic_outb(p, ~((p->discenable >> 8) & 0xFF), DISC_DSB + 1); - - /* - * We set the p->ultraenb from the SEEPROM to begin with, but now we make - * it match what is already down in the card. If we are doing a reset - * on the card then this will get put back to a default state anyway. - * This allows us to not have to pre-emptively negotiate when using the - * no_reset option. - */ - if (p->features & AHC_ULTRA) - p->ultraenb = aic_inb(p, ULTRA_ENB) | (aic_inb(p, ULTRA_ENB + 1) << 8); - - - scsi_conf = (p->scsi_id & HSCSIID); - - if(have_seeprom) - { - p->adapter_control = sc->adapter_control; - p->bios_control = sc->bios_control; - - switch (p->chip & AHC_CHIPID_MASK) - { - case AHC_AIC7895: - case AHC_AIC7896: - case AHC_AIC7899: - if (p->adapter_control & CFBPRIMARY) - p->flags |= AHC_CHANNEL_B_PRIMARY; - default: - break; - } - - if (sc->adapter_control & CFSPARITY) - scsi_conf |= ENSPCHK; - } - else - { - scsi_conf |= ENSPCHK | RESET_SCSI; - } - - /* - * Only set the SCSICONF and SCSICONF + 1 registers if we are a PCI card. - * The 2842 and 2742 cards already have these registers set and we don't - * want to muck with them since we don't set all the bits they do. - */ - if ( (p->chip & ~AHC_CHIPID_MASK) == AHC_PCI ) - { - /* Set the host ID */ - aic_outb(p, scsi_conf, SCSICONF); - /* In case we are a wide card */ - aic_outb(p, p->scsi_id, SCSICONF + 1); - } -} - -/*+F************************************************************************* - * Function: - * aic7xxx_configure_bugs - * - * Description: - * Take the card passed in and set the appropriate bug flags based upon - * the card model. Also make any changes needed to device registers or - * PCI registers while we are here. - *-F*************************************************************************/ -static void -aic7xxx_configure_bugs(struct aic7xxx_host *p) -{ - unsigned short tmp_word; - - switch(p->chip & AHC_CHIPID_MASK) - { - case AHC_AIC7860: - p->bugs |= AHC_BUG_PCI_2_1_RETRY; - /* fall through */ - case AHC_AIC7850: - case AHC_AIC7870: - p->bugs |= AHC_BUG_TMODE_WIDEODD | AHC_BUG_CACHETHEN | AHC_BUG_PCI_MWI; - break; - case AHC_AIC7880: - p->bugs |= AHC_BUG_TMODE_WIDEODD | AHC_BUG_PCI_2_1_RETRY | - AHC_BUG_CACHETHEN | AHC_BUG_PCI_MWI; - break; - case AHC_AIC7890: - p->bugs |= AHC_BUG_AUTOFLUSH | AHC_BUG_CACHETHEN; - break; - case AHC_AIC7892: - p->bugs |= AHC_BUG_SCBCHAN_UPLOAD; - break; - case AHC_AIC7895: - p->bugs |= AHC_BUG_TMODE_WIDEODD | AHC_BUG_PCI_2_1_RETRY | - AHC_BUG_CACHETHEN | AHC_BUG_PCI_MWI; - break; - case AHC_AIC7896: - p->bugs |= AHC_BUG_CACHETHEN_DIS; - break; - case AHC_AIC7899: - p->bugs |= AHC_BUG_SCBCHAN_UPLOAD; - break; - default: - /* Nothing to do */ - break; - } - - /* - * Now handle the bugs that require PCI register or card register tweaks - */ - pci_read_config_word(p->pdev, PCI_COMMAND, &tmp_word); - if(p->bugs & AHC_BUG_PCI_MWI) - { - tmp_word &= ~PCI_COMMAND_INVALIDATE; - } - else - { - tmp_word |= PCI_COMMAND_INVALIDATE; - } - pci_write_config_word(p->pdev, PCI_COMMAND, tmp_word); - - if(p->bugs & AHC_BUG_CACHETHEN) - { - aic_outb(p, aic_inb(p, DSCOMMAND0) & ~CACHETHEN, DSCOMMAND0); - } - else if (p->bugs & AHC_BUG_CACHETHEN_DIS) - { - aic_outb(p, aic_inb(p, DSCOMMAND0) | CACHETHEN, DSCOMMAND0); - } - - return; -} - - -/*+F************************************************************************* - * Function: - * aic7xxx_detect - * - * Description: - * Try to detect and register an Adaptec 7770 or 7870 SCSI controller. - * - * XXX - This should really be called aic7xxx_probe(). A sequence of - * probe(), attach()/detach(), and init() makes more sense than - * one do-it-all function. This may be useful when (and if) the - * mid-level SCSI code is overhauled. - *-F*************************************************************************/ -static int -aic7xxx_detect(struct scsi_host_template *template) -{ - struct aic7xxx_host *temp_p = NULL; - struct aic7xxx_host *current_p = NULL; - struct aic7xxx_host *list_p = NULL; - int found = 0; -#if defined(__i386__) || defined(__alpha__) - ahc_flag_type flags = 0; - int type; -#endif - unsigned char sxfrctl1; -#if defined(__i386__) || defined(__alpha__) - unsigned char hcntrl, hostconf; - unsigned int slot, base; -#endif - -#ifdef MODULE - /* - * If we are called as a module, the aic7xxx pointer may not be null - * and it would point to our bootup string, just like on the lilo - * command line. IF not NULL, then process this config string with - * aic7xxx_setup - */ - if(aic7xxx) - aic7xxx_setup(aic7xxx); -#endif - - template->proc_name = "aic7xxx"; - template->sg_tablesize = AIC7XXX_MAX_SG; - - -#ifdef CONFIG_PCI - /* - * PCI-bus probe. - */ - { - static struct - { - unsigned short vendor_id; - unsigned short device_id; - ahc_chip chip; - ahc_flag_type flags; - ahc_feature features; - int board_name_index; - unsigned short seeprom_size; - unsigned short seeprom_type; - } const aic_pdevs[] = { - {PCI_VENDOR_ID_ADAPTEC, PCI_DEVICE_ID_ADAPTEC_7810, AHC_NONE, - AHC_FNONE, AHC_FENONE, 1, - 32, C46 }, - {PCI_VENDOR_ID_ADAPTEC, PCI_DEVICE_ID_ADAPTEC_7850, AHC_AIC7850, - AHC_PAGESCBS, AHC_AIC7850_FE, 5, - 32, C46 }, - {PCI_VENDOR_ID_ADAPTEC, PCI_DEVICE_ID_ADAPTEC_7855, AHC_AIC7850, - AHC_PAGESCBS, AHC_AIC7850_FE, 6, - 32, C46 }, - {PCI_VENDOR_ID_ADAPTEC, PCI_DEVICE_ID_ADAPTEC_7821, AHC_AIC7860, - AHC_PAGESCBS | AHC_NEWEEPROM_FMT | AHC_BIOS_ENABLED, - AHC_AIC7860_FE, 7, - 32, C46 }, - {PCI_VENDOR_ID_ADAPTEC, PCI_DEVICE_ID_ADAPTEC_3860, AHC_AIC7860, - AHC_PAGESCBS | AHC_NEWEEPROM_FMT | AHC_BIOS_ENABLED, - AHC_AIC7860_FE, 7, - 32, C46 }, - {PCI_VENDOR_ID_ADAPTEC, PCI_DEVICE_ID_ADAPTEC_38602, AHC_AIC7860, - AHC_PAGESCBS | AHC_NEWEEPROM_FMT | AHC_BIOS_ENABLED, - AHC_AIC7860_FE, 7, - 32, C46 }, - {PCI_VENDOR_ID_ADAPTEC, PCI_DEVICE_ID_ADAPTEC_38602, AHC_AIC7860, - AHC_PAGESCBS | AHC_NEWEEPROM_FMT | AHC_BIOS_ENABLED, - AHC_AIC7860_FE, 7, - 32, C46 }, - {PCI_VENDOR_ID_ADAPTEC, PCI_DEVICE_ID_ADAPTEC_7860, AHC_AIC7860, - AHC_PAGESCBS | AHC_NEWEEPROM_FMT | AHC_BIOS_ENABLED | AHC_MOTHERBOARD, - AHC_AIC7860_FE, 7, - 32, C46 }, - {PCI_VENDOR_ID_ADAPTEC, PCI_DEVICE_ID_ADAPTEC_7861, AHC_AIC7860, - AHC_PAGESCBS | AHC_NEWEEPROM_FMT | AHC_BIOS_ENABLED, - AHC_AIC7860_FE, 8, - 32, C46 }, - {PCI_VENDOR_ID_ADAPTEC, PCI_DEVICE_ID_ADAPTEC_7870, AHC_AIC7870, - AHC_PAGESCBS | AHC_BIOS_ENABLED | AHC_MOTHERBOARD, - AHC_AIC7870_FE, 9, - 32, C46 }, - {PCI_VENDOR_ID_ADAPTEC, PCI_DEVICE_ID_ADAPTEC_7871, AHC_AIC7870, - AHC_PAGESCBS | AHC_BIOS_ENABLED, AHC_AIC7870_FE, 10, - 32, C46 }, - {PCI_VENDOR_ID_ADAPTEC, PCI_DEVICE_ID_ADAPTEC_7872, AHC_AIC7870, - AHC_PAGESCBS | AHC_BIOS_ENABLED | AHC_MULTI_CHANNEL, - AHC_AIC7870_FE, 11, - 32, C56_66 }, - {PCI_VENDOR_ID_ADAPTEC, PCI_DEVICE_ID_ADAPTEC_7873, AHC_AIC7870, - AHC_PAGESCBS | AHC_BIOS_ENABLED | AHC_MULTI_CHANNEL, - AHC_AIC7870_FE, 12, - 32, C56_66 }, - {PCI_VENDOR_ID_ADAPTEC, PCI_DEVICE_ID_ADAPTEC_7874, AHC_AIC7870, - AHC_PAGESCBS | AHC_BIOS_ENABLED, AHC_AIC7870_FE, 13, - 32, C46 }, - {PCI_VENDOR_ID_ADAPTEC, PCI_DEVICE_ID_ADAPTEC_7880, AHC_AIC7880, - AHC_PAGESCBS | AHC_BIOS_ENABLED | AHC_MOTHERBOARD, - AHC_AIC7880_FE, 14, - 32, C46 }, - {PCI_VENDOR_ID_ADAPTEC, PCI_DEVICE_ID_ADAPTEC_7881, AHC_AIC7880, - AHC_PAGESCBS | AHC_BIOS_ENABLED, AHC_AIC7880_FE, 15, - 32, C46 }, - {PCI_VENDOR_ID_ADAPTEC, PCI_DEVICE_ID_ADAPTEC_7882, AHC_AIC7880, - AHC_PAGESCBS | AHC_BIOS_ENABLED | AHC_MULTI_CHANNEL, - AHC_AIC7880_FE, 16, - 32, C56_66 }, - {PCI_VENDOR_ID_ADAPTEC, PCI_DEVICE_ID_ADAPTEC_7883, AHC_AIC7880, - AHC_PAGESCBS | AHC_BIOS_ENABLED | AHC_MULTI_CHANNEL, - AHC_AIC7880_FE, 17, - 32, C56_66 }, - {PCI_VENDOR_ID_ADAPTEC, PCI_DEVICE_ID_ADAPTEC_7884, AHC_AIC7880, - AHC_PAGESCBS | AHC_BIOS_ENABLED, AHC_AIC7880_FE, 18, - 32, C46 }, - {PCI_VENDOR_ID_ADAPTEC, PCI_DEVICE_ID_ADAPTEC_7885, AHC_AIC7880, - AHC_PAGESCBS | AHC_BIOS_ENABLED, AHC_AIC7880_FE, 18, - 32, C46 }, - {PCI_VENDOR_ID_ADAPTEC, PCI_DEVICE_ID_ADAPTEC_7886, AHC_AIC7880, - AHC_PAGESCBS | AHC_BIOS_ENABLED, AHC_AIC7880_FE, 18, - 32, C46 }, - {PCI_VENDOR_ID_ADAPTEC, PCI_DEVICE_ID_ADAPTEC_7887, AHC_AIC7880, - AHC_PAGESCBS | AHC_BIOS_ENABLED, AHC_AIC7880_FE | AHC_NEW_AUTOTERM, 19, - 32, C46 }, - {PCI_VENDOR_ID_ADAPTEC, PCI_DEVICE_ID_ADAPTEC_7888, AHC_AIC7880, - AHC_PAGESCBS | AHC_BIOS_ENABLED, AHC_AIC7880_FE, 18, - 32, C46 }, - {PCI_VENDOR_ID_ADAPTEC, PCI_DEVICE_ID_ADAPTEC_7895, AHC_AIC7895, - AHC_PAGESCBS | AHC_NEWEEPROM_FMT | AHC_BIOS_ENABLED | AHC_MULTI_CHANNEL, - AHC_AIC7895_FE, 20, - 32, C56_66 }, - {PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_7890, AHC_AIC7890, - AHC_PAGESCBS | AHC_NEWEEPROM_FMT | AHC_BIOS_ENABLED, - AHC_AIC7890_FE, 21, - 32, C46 }, - {PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_7890B, AHC_AIC7890, - AHC_PAGESCBS | AHC_NEWEEPROM_FMT | AHC_BIOS_ENABLED, - AHC_AIC7890_FE, 21, - 32, C46 }, - {PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_2930U2, AHC_AIC7890, - AHC_PAGESCBS | AHC_NEWEEPROM_FMT | AHC_BIOS_ENABLED, - AHC_AIC7890_FE, 22, - 32, C46 }, - {PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_2940U2, AHC_AIC7890, - AHC_PAGESCBS | AHC_NEWEEPROM_FMT | AHC_BIOS_ENABLED, - AHC_AIC7890_FE, 23, - 32, C46 }, - {PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_7896, AHC_AIC7896, - AHC_PAGESCBS | AHC_NEWEEPROM_FMT | AHC_BIOS_ENABLED | AHC_MULTI_CHANNEL, - AHC_AIC7896_FE, 24, - 32, C56_66 }, - {PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_3940U2, AHC_AIC7896, - AHC_PAGESCBS | AHC_NEWEEPROM_FMT | AHC_BIOS_ENABLED | AHC_MULTI_CHANNEL, - AHC_AIC7896_FE, 25, - 32, C56_66 }, - {PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_3950U2D, AHC_AIC7896, - AHC_PAGESCBS | AHC_NEWEEPROM_FMT | AHC_BIOS_ENABLED | AHC_MULTI_CHANNEL, - AHC_AIC7896_FE, 26, - 32, C56_66 }, - {PCI_VENDOR_ID_ADAPTEC, PCI_DEVICE_ID_ADAPTEC_1480A, AHC_AIC7860, - AHC_PAGESCBS | AHC_NEWEEPROM_FMT | AHC_BIOS_ENABLED | AHC_NO_STPWEN, - AHC_AIC7860_FE, 27, - 32, C46 }, - {PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_7892A, AHC_AIC7892, - AHC_PAGESCBS | AHC_NEWEEPROM_FMT | AHC_BIOS_ENABLED, - AHC_AIC7892_FE, 28, - 32, C46 }, - {PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_7892B, AHC_AIC7892, - AHC_PAGESCBS | AHC_NEWEEPROM_FMT | AHC_BIOS_ENABLED, - AHC_AIC7892_FE, 28, - 32, C46 }, - {PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_7892D, AHC_AIC7892, - AHC_PAGESCBS | AHC_NEWEEPROM_FMT | AHC_BIOS_ENABLED, - AHC_AIC7892_FE, 28, - 32, C46 }, - {PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_7892P, AHC_AIC7892, - AHC_PAGESCBS | AHC_NEWEEPROM_FMT | AHC_BIOS_ENABLED, - AHC_AIC7892_FE, 28, - 32, C46 }, - {PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_7899A, AHC_AIC7899, - AHC_PAGESCBS | AHC_NEWEEPROM_FMT | AHC_BIOS_ENABLED | AHC_MULTI_CHANNEL, - AHC_AIC7899_FE, 29, - 32, C56_66 }, - {PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_7899B, AHC_AIC7899, - AHC_PAGESCBS | AHC_NEWEEPROM_FMT | AHC_BIOS_ENABLED | AHC_MULTI_CHANNEL, - AHC_AIC7899_FE, 29, - 32, C56_66 }, - {PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_7899D, AHC_AIC7899, - AHC_PAGESCBS | AHC_NEWEEPROM_FMT | AHC_BIOS_ENABLED | AHC_MULTI_CHANNEL, - AHC_AIC7899_FE, 29, - 32, C56_66 }, - {PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_7899P, AHC_AIC7899, - AHC_PAGESCBS | AHC_NEWEEPROM_FMT | AHC_BIOS_ENABLED | AHC_MULTI_CHANNEL, - AHC_AIC7899_FE, 29, - 32, C56_66 }, - }; - - unsigned short command; - unsigned int devconfig, i, oldverbose; - struct pci_dev *pdev = NULL; - - for (i = 0; i < ARRAY_SIZE(aic_pdevs); i++) - { - pdev = NULL; - while ((pdev = pci_get_device(aic_pdevs[i].vendor_id, - aic_pdevs[i].device_id, - pdev))) { - if (pci_enable_device(pdev)) - continue; - if ( i == 0 ) /* We found one, but it's the 7810 RAID cont. */ - { - if (aic7xxx_verbose & (VERBOSE_PROBE|VERBOSE_PROBE2)) - { - printk(KERN_INFO "aic7xxx: The 7810 RAID controller is not " - "supported by\n"); - printk(KERN_INFO " this driver, we are ignoring it.\n"); - } - } - else if ( (temp_p = kzalloc(sizeof(struct aic7xxx_host), - GFP_ATOMIC)) != NULL ) - { - temp_p->chip = aic_pdevs[i].chip | AHC_PCI; - temp_p->flags = aic_pdevs[i].flags; - temp_p->features = aic_pdevs[i].features; - temp_p->board_name_index = aic_pdevs[i].board_name_index; - temp_p->sc_size = aic_pdevs[i].seeprom_size; - temp_p->sc_type = aic_pdevs[i].seeprom_type; - - /* - * Read sundry information from PCI BIOS. - */ - temp_p->irq = pdev->irq; - temp_p->pdev = pdev; - temp_p->pci_bus = pdev->bus->number; - temp_p->pci_device_fn = pdev->devfn; - temp_p->base = pci_resource_start(pdev, 0); - temp_p->mbase = pci_resource_start(pdev, 1); - current_p = list_p; - while(current_p && temp_p) - { - if ( ((current_p->pci_bus == temp_p->pci_bus) && - (current_p->pci_device_fn == temp_p->pci_device_fn)) || - (temp_p->base && (current_p->base == temp_p->base)) || - (temp_p->mbase && (current_p->mbase == temp_p->mbase)) ) - { - /* duplicate PCI entry, skip it */ - kfree(temp_p); - temp_p = NULL; - continue; - } - current_p = current_p->next; - } - if(pci_request_regions(temp_p->pdev, "aic7xxx")) - { - printk("aic7xxx: <%s> at PCI %d/%d/%d\n", - board_names[aic_pdevs[i].board_name_index], - temp_p->pci_bus, - PCI_SLOT(temp_p->pci_device_fn), - PCI_FUNC(temp_p->pci_device_fn)); - printk("aic7xxx: I/O ports already in use, ignoring.\n"); - kfree(temp_p); - continue; - } - - if (aic7xxx_verbose & VERBOSE_PROBE2) - printk("aic7xxx: <%s> at PCI %d/%d\n", - board_names[aic_pdevs[i].board_name_index], - PCI_SLOT(pdev->devfn), - PCI_FUNC(pdev->devfn)); - pci_read_config_word(pdev, PCI_COMMAND, &command); - if (aic7xxx_verbose & VERBOSE_PROBE2) - { - printk("aic7xxx: Initial PCI_COMMAND value was 0x%x\n", - (int)command); - } -#ifdef AIC7XXX_STRICT_PCI_SETUP - command |= PCI_COMMAND_SERR | PCI_COMMAND_PARITY | - PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY | PCI_COMMAND_IO; -#else - command |= PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY | PCI_COMMAND_IO; -#endif - command &= ~PCI_COMMAND_INVALIDATE; - if (aic7xxx_pci_parity == 0) - command &= ~(PCI_COMMAND_SERR | PCI_COMMAND_PARITY); - pci_write_config_word(pdev, PCI_COMMAND, command); -#ifdef AIC7XXX_STRICT_PCI_SETUP - pci_read_config_dword(pdev, DEVCONFIG, &devconfig); - if (aic7xxx_verbose & VERBOSE_PROBE2) - { - printk("aic7xxx: Initial DEVCONFIG value was 0x%x\n", devconfig); - } - devconfig |= 0x80000040; - pci_write_config_dword(pdev, DEVCONFIG, devconfig); -#endif /* AIC7XXX_STRICT_PCI_SETUP */ - - temp_p->unpause = INTEN; - temp_p->pause = temp_p->unpause | PAUSE; - if ( ((temp_p->base == 0) && - (temp_p->mbase == 0)) || - (temp_p->irq == 0) ) - { - printk("aic7xxx: <%s> at PCI %d/%d/%d\n", - board_names[aic_pdevs[i].board_name_index], - temp_p->pci_bus, - PCI_SLOT(temp_p->pci_device_fn), - PCI_FUNC(temp_p->pci_device_fn)); - printk("aic7xxx: Controller disabled by BIOS, ignoring.\n"); - goto skip_pci_controller; - } - -#ifdef MMAPIO - if ( !(temp_p->base) || !(temp_p->flags & AHC_MULTI_CHANNEL) || - ((temp_p->chip != (AHC_AIC7870 | AHC_PCI)) && - (temp_p->chip != (AHC_AIC7880 | AHC_PCI))) ) - { - temp_p->maddr = ioremap_nocache(temp_p->mbase, 256); - if(temp_p->maddr) - { - /* - * We need to check the I/O with the MMAPed address. Some machines - * simply fail to work with MMAPed I/O and certain controllers. - */ - if(aic_inb(temp_p, HCNTRL) == 0xff) - { - /* - * OK.....we failed our test....go back to programmed I/O - */ - printk(KERN_INFO "aic7xxx: <%s> at PCI %d/%d/%d\n", - board_names[aic_pdevs[i].board_name_index], - temp_p->pci_bus, - PCI_SLOT(temp_p->pci_device_fn), - PCI_FUNC(temp_p->pci_device_fn)); - printk(KERN_INFO "aic7xxx: MMAPed I/O failed, reverting to " - "Programmed I/O.\n"); - iounmap(temp_p->maddr); - temp_p->maddr = NULL; - if(temp_p->base == 0) - { - printk("aic7xxx: <%s> at PCI %d/%d/%d\n", - board_names[aic_pdevs[i].board_name_index], - temp_p->pci_bus, - PCI_SLOT(temp_p->pci_device_fn), - PCI_FUNC(temp_p->pci_device_fn)); - printk("aic7xxx: Controller disabled by BIOS, ignoring.\n"); - goto skip_pci_controller; - } - } - } - } -#endif - - /* - * We HAVE to make sure the first pause_sequencer() and all other - * subsequent I/O that isn't PCI config space I/O takes place - * after the MMAPed I/O region is configured and tested. The - * problem is the PowerPC architecture that doesn't support - * programmed I/O at all, so we have to have the MMAP I/O set up - * for this pause to even work on those machines. - */ - pause_sequencer(temp_p); - - /* - * Clear out any pending PCI error status messages. Also set - * verbose to 0 so that we don't emit strange PCI error messages - * while cleaning out the current status bits. - */ - oldverbose = aic7xxx_verbose; - aic7xxx_verbose = 0; - aic7xxx_pci_intr(temp_p); - aic7xxx_verbose = oldverbose; - - temp_p->bios_address = 0; - - /* - * Remember how the card was setup in case there is no seeprom. - */ - if (temp_p->features & AHC_ULTRA2) - temp_p->scsi_id = aic_inb(temp_p, SCSIID_ULTRA2) & OID; - else - temp_p->scsi_id = aic_inb(temp_p, SCSIID) & OID; - /* - * Get current termination setting - */ - sxfrctl1 = aic_inb(temp_p, SXFRCTL1); - - if (aic7xxx_chip_reset(temp_p) == -1) - { - goto skip_pci_controller; - } - /* - * Very quickly put the term setting back into the register since - * the chip reset may cause odd things to happen. This is to keep - * LVD busses with lots of drives from draining the power out of - * the diffsense line before we get around to running the - * configure_termination() function. Also restore the STPWLEVEL - * bit of DEVCONFIG - */ - aic_outb(temp_p, sxfrctl1, SXFRCTL1); - pci_write_config_dword(temp_p->pdev, DEVCONFIG, devconfig); - sxfrctl1 &= STPWEN; - - /* - * We need to set the CHNL? assignments before loading the SEEPROM - * The 3940 and 3985 cards (original stuff, not any of the later - * stuff) are 7870 and 7880 class chips. The Ultra2 stuff falls - * under 7896 and 7897. The 7895 is in a class by itself :) - */ - switch (temp_p->chip & AHC_CHIPID_MASK) - { - case AHC_AIC7870: /* 3840 / 3985 */ - case AHC_AIC7880: /* 3840 UW / 3985 UW */ - if(temp_p->flags & AHC_MULTI_CHANNEL) - { - switch(PCI_SLOT(temp_p->pci_device_fn)) - { - case 5: - temp_p->flags |= AHC_CHNLB; - break; - case 8: - temp_p->flags |= AHC_CHNLB; - break; - case 12: - temp_p->flags |= AHC_CHNLC; - break; - default: - break; - } - } - break; - - case AHC_AIC7895: /* 7895 */ - case AHC_AIC7896: /* 7896/7 */ - case AHC_AIC7899: /* 7899 */ - if (PCI_FUNC(pdev->devfn) != 0) - { - temp_p->flags |= AHC_CHNLB; - } - /* - * The 7895 is the only chipset that sets the SCBSIZE32 param - * in the DEVCONFIG register. The Ultra2 chipsets use - * the DSCOMMAND0 register instead. - */ - if ((temp_p->chip & AHC_CHIPID_MASK) == AHC_AIC7895) - { - pci_read_config_dword(pdev, DEVCONFIG, &devconfig); - devconfig |= SCBSIZE32; - pci_write_config_dword(pdev, DEVCONFIG, devconfig); - } - break; - default: - break; - } - - /* - * Loading of the SEEPROM needs to come after we've set the flags - * to indicate possible CHNLB and CHNLC assigments. Otherwise, - * on 394x and 398x cards we'll end up reading the wrong settings - * for channels B and C - */ - switch (temp_p->chip & AHC_CHIPID_MASK) - { - case AHC_AIC7892: - case AHC_AIC7899: - aic_outb(temp_p, 0, SCAMCTL); - /* - * Switch to the alt mode of the chip... - */ - aic_outb(temp_p, aic_inb(temp_p, SFUNCT) | ALT_MODE, SFUNCT); - /* - * Set our options...the last two items set our CRC after x byte - * count in target mode... - */ - aic_outb(temp_p, AUTO_MSGOUT_DE | DIS_MSGIN_DUALEDGE, OPTIONMODE); - aic_outb(temp_p, 0x00, 0x0b); - aic_outb(temp_p, 0x10, 0x0a); - /* - * switch back to normal mode... - */ - aic_outb(temp_p, aic_inb(temp_p, SFUNCT) & ~ALT_MODE, SFUNCT); - aic_outb(temp_p, CRCVALCHKEN | CRCENDCHKEN | CRCREQCHKEN | - TARGCRCENDEN | TARGCRCCNTEN, - CRCCONTROL1); - aic_outb(temp_p, ((aic_inb(temp_p, DSCOMMAND0) | USCBSIZE32 | - MPARCKEN | CIOPARCKEN | CACHETHEN) & - ~DPARCKEN), DSCOMMAND0); - aic7xxx_load_seeprom(temp_p, &sxfrctl1); - break; - case AHC_AIC7890: - case AHC_AIC7896: - aic_outb(temp_p, 0, SCAMCTL); - aic_outb(temp_p, (aic_inb(temp_p, DSCOMMAND0) | - CACHETHEN | MPARCKEN | USCBSIZE32 | - CIOPARCKEN) & ~DPARCKEN, DSCOMMAND0); - aic7xxx_load_seeprom(temp_p, &sxfrctl1); - break; - case AHC_AIC7850: - case AHC_AIC7860: - /* - * Set the DSCOMMAND0 register on these cards different from - * on the 789x cards. Also, read the SEEPROM as well. - */ - aic_outb(temp_p, (aic_inb(temp_p, DSCOMMAND0) | - CACHETHEN | MPARCKEN) & ~DPARCKEN, - DSCOMMAND0); - /* FALLTHROUGH */ - default: - aic7xxx_load_seeprom(temp_p, &sxfrctl1); - break; - case AHC_AIC7880: - /* - * Check the rev of the chipset before we change DSCOMMAND0 - */ - pci_read_config_dword(pdev, DEVCONFIG, &devconfig); - if ((devconfig & 0xff) >= 1) - { - aic_outb(temp_p, (aic_inb(temp_p, DSCOMMAND0) | - CACHETHEN | MPARCKEN) & ~DPARCKEN, - DSCOMMAND0); - } - aic7xxx_load_seeprom(temp_p, &sxfrctl1); - break; - } - - - /* - * and then we need another switch based on the type in order to - * make sure the channel B primary flag is set properly on 7895 - * controllers....Arrrgggghhh!!! We also have to catch the fact - * that when you disable the BIOS on the 7895 on the Intel DK440LX - * motherboard, and possibly others, it only sets the BIOS disabled - * bit on the A channel...I think I'm starting to lean towards - * going postal.... - */ - switch(temp_p->chip & AHC_CHIPID_MASK) - { - case AHC_AIC7895: - case AHC_AIC7896: - case AHC_AIC7899: - current_p = list_p; - while(current_p != NULL) - { - if ( (current_p->pci_bus == temp_p->pci_bus) && - (PCI_SLOT(current_p->pci_device_fn) == - PCI_SLOT(temp_p->pci_device_fn)) ) - { - if ( PCI_FUNC(current_p->pci_device_fn) == 0 ) - { - temp_p->flags |= - (current_p->flags & AHC_CHANNEL_B_PRIMARY); - temp_p->flags &= ~(AHC_BIOS_ENABLED|AHC_USEDEFAULTS); - temp_p->flags |= - (current_p->flags & (AHC_BIOS_ENABLED|AHC_USEDEFAULTS)); - } - else - { - current_p->flags |= - (temp_p->flags & AHC_CHANNEL_B_PRIMARY); - current_p->flags &= ~(AHC_BIOS_ENABLED|AHC_USEDEFAULTS); - current_p->flags |= - (temp_p->flags & (AHC_BIOS_ENABLED|AHC_USEDEFAULTS)); - } - } - current_p = current_p->next; - } - break; - default: - break; - } - - /* - * We only support external SCB RAM on the 7895/6/7 chipsets. - * We could support it on the 7890/1 easy enough, but I don't - * know of any 7890/1 based cards that have it. I do know - * of 7895/6/7 cards that have it and they work properly. - */ - switch(temp_p->chip & AHC_CHIPID_MASK) - { - default: - break; - case AHC_AIC7895: - case AHC_AIC7896: - case AHC_AIC7899: - pci_read_config_dword(pdev, DEVCONFIG, &devconfig); - if (temp_p->features & AHC_ULTRA2) - { - if ( (aic_inb(temp_p, DSCOMMAND0) & RAMPSM_ULTRA2) && - (aic7xxx_scbram) ) - { - aic_outb(temp_p, - aic_inb(temp_p, DSCOMMAND0) & ~SCBRAMSEL_ULTRA2, - DSCOMMAND0); - temp_p->flags |= AHC_EXTERNAL_SRAM; - devconfig |= EXTSCBPEN; - } - else if (aic_inb(temp_p, DSCOMMAND0) & RAMPSM_ULTRA2) - { - printk(KERN_INFO "aic7xxx: <%s> at PCI %d/%d/%d\n", - board_names[aic_pdevs[i].board_name_index], - temp_p->pci_bus, - PCI_SLOT(temp_p->pci_device_fn), - PCI_FUNC(temp_p->pci_device_fn)); - printk("aic7xxx: external SCB RAM detected, " - "but not enabled\n"); - } - } - else - { - if ((devconfig & RAMPSM) && (aic7xxx_scbram)) - { - devconfig &= ~SCBRAMSEL; - devconfig |= EXTSCBPEN; - temp_p->flags |= AHC_EXTERNAL_SRAM; - } - else if (devconfig & RAMPSM) - { - printk(KERN_INFO "aic7xxx: <%s> at PCI %d/%d/%d\n", - board_names[aic_pdevs[i].board_name_index], - temp_p->pci_bus, - PCI_SLOT(temp_p->pci_device_fn), - PCI_FUNC(temp_p->pci_device_fn)); - printk("aic7xxx: external SCB RAM detected, " - "but not enabled\n"); - } - } - pci_write_config_dword(pdev, DEVCONFIG, devconfig); - if ( (temp_p->flags & AHC_EXTERNAL_SRAM) && - (temp_p->flags & AHC_CHNLB) ) - aic_outb(temp_p, 1, CCSCBBADDR); - break; - } - - /* - * Take the LED out of diagnostic mode - */ - aic_outb(temp_p, - (aic_inb(temp_p, SBLKCTL) & ~(DIAGLEDEN | DIAGLEDON)), - SBLKCTL); - - /* - * We don't know where this is set in the SEEPROM or by the - * BIOS, so we default to 100%. On Ultra2 controllers, use 75% - * instead. - */ - if (temp_p->features & AHC_ULTRA2) - { - aic_outb(temp_p, RD_DFTHRSH_MAX | WR_DFTHRSH_MAX, DFF_THRSH); - } - else - { - aic_outb(temp_p, DFTHRSH_100, DSPCISTATUS); - } - - /* - * Call our function to fixup any bugs that exist on this chipset. - * This may muck with PCI settings and other device settings, so - * make sure it's after all the other PCI and device register - * tweaks so it can back out bad settings on specific broken cards. - */ - aic7xxx_configure_bugs(temp_p); - - /* Hold a pci device reference */ - pci_dev_get(temp_p->pdev); - - if ( list_p == NULL ) - { - list_p = current_p = temp_p; - } - else - { - current_p = list_p; - while(current_p->next != NULL) - current_p = current_p->next; - current_p->next = temp_p; - } - temp_p->next = NULL; - found++; - continue; -skip_pci_controller: -#ifdef CONFIG_PCI - pci_release_regions(temp_p->pdev); -#endif - kfree(temp_p); - } /* Found an Adaptec PCI device. */ - else /* Well, we found one, but we couldn't get any memory */ - { - printk("aic7xxx: Found <%s>\n", - board_names[aic_pdevs[i].board_name_index]); - printk(KERN_INFO "aic7xxx: Unable to allocate device memory, " - "skipping.\n"); - } - } /* while(pdev=....) */ - } /* for PCI_DEVICES */ - } -#endif /* CONFIG_PCI */ - -#if defined(__i386__) || defined(__alpha__) - /* - * EISA/VL-bus card signature probe. - */ - slot = MINSLOT; - while ( (slot <= MAXSLOT) && - !(aic7xxx_no_probe) ) - { - base = SLOTBASE(slot) + MINREG; - - if (!request_region(base, MAXREG - MINREG, "aic7xxx")) - { - /* - * Some other driver has staked a - * claim to this i/o region already. - */ - slot++; - continue; /* back to the beginning of the for loop */ - } - flags = 0; - type = aic7xxx_probe(slot, base + AHC_HID0, &flags); - if (type == -1) - { - release_region(base, MAXREG - MINREG); - slot++; - continue; - } - temp_p = kmalloc(sizeof(struct aic7xxx_host), GFP_ATOMIC); - if (temp_p == NULL) - { - printk(KERN_WARNING "aic7xxx: Unable to allocate device space.\n"); - release_region(base, MAXREG - MINREG); - slot++; - continue; /* back to the beginning of the while loop */ - } - - /* - * Pause the card preserving the IRQ type. Allow the operator - * to override the IRQ trigger. - */ - if (aic7xxx_irq_trigger == 1) - hcntrl = IRQMS; /* Level */ - else if (aic7xxx_irq_trigger == 0) - hcntrl = 0; /* Edge */ - else - hcntrl = inb(base + HCNTRL) & IRQMS; /* Default */ - memset(temp_p, 0, sizeof(struct aic7xxx_host)); - temp_p->unpause = hcntrl | INTEN; - temp_p->pause = hcntrl | PAUSE | INTEN; - temp_p->base = base; - temp_p->mbase = 0; - temp_p->maddr = NULL; - temp_p->pci_bus = 0; - temp_p->pci_device_fn = slot; - aic_outb(temp_p, hcntrl | PAUSE, HCNTRL); - while( (aic_inb(temp_p, HCNTRL) & PAUSE) == 0 ) ; - if (aic7xxx_chip_reset(temp_p) == -1) - temp_p->irq = 0; - else - temp_p->irq = aic_inb(temp_p, INTDEF) & 0x0F; - temp_p->flags |= AHC_PAGESCBS; - - switch (temp_p->irq) - { - case 9: - case 10: - case 11: - case 12: - case 14: - case 15: - break; - - default: - printk(KERN_WARNING "aic7xxx: Host adapter uses unsupported IRQ " - "level %d, ignoring.\n", temp_p->irq); - kfree(temp_p); - release_region(base, MAXREG - MINREG); - slot++; - continue; /* back to the beginning of the while loop */ - } - - /* - * We are committed now, everything has been checked and this card - * has been found, now we just set it up - */ - - /* - * Insert our new struct into the list at the end - */ - if (list_p == NULL) - { - list_p = current_p = temp_p; - } - else - { - current_p = list_p; - while (current_p->next != NULL) - current_p = current_p->next; - current_p->next = temp_p; - } - - switch (type) - { - case 0: - temp_p->board_name_index = 2; - if (aic7xxx_verbose & VERBOSE_PROBE2) - printk("aic7xxx: <%s> at EISA %d\n", - board_names[2], slot); - /* FALLTHROUGH */ - case 1: - { - temp_p->chip = AHC_AIC7770 | AHC_EISA; - temp_p->features |= AHC_AIC7770_FE; - temp_p->bios_control = aic_inb(temp_p, HA_274_BIOSCTRL); - - /* - * Get the primary channel information. Right now we don't - * do anything with this, but someday we will be able to inform - * the mid-level SCSI code which channel is primary. - */ - if (temp_p->board_name_index == 0) - { - temp_p->board_name_index = 3; - if (aic7xxx_verbose & VERBOSE_PROBE2) - printk("aic7xxx: <%s> at EISA %d\n", - board_names[3], slot); - } - if (temp_p->bios_control & CHANNEL_B_PRIMARY) - { - temp_p->flags |= AHC_CHANNEL_B_PRIMARY; - } - - if ((temp_p->bios_control & BIOSMODE) == BIOSDISABLED) - { - temp_p->flags &= ~AHC_BIOS_ENABLED; - } - else - { - temp_p->flags &= ~AHC_USEDEFAULTS; - temp_p->flags |= AHC_BIOS_ENABLED; - if ( (temp_p->bios_control & 0x20) == 0 ) - { - temp_p->bios_address = 0xcc000; - temp_p->bios_address += (0x4000 * (temp_p->bios_control & 0x07)); - } - else - { - temp_p->bios_address = 0xd0000; - temp_p->bios_address += (0x8000 * (temp_p->bios_control & 0x06)); - } - } - temp_p->adapter_control = aic_inb(temp_p, SCSICONF) << 8; - temp_p->adapter_control |= aic_inb(temp_p, SCSICONF + 1); - if (temp_p->features & AHC_WIDE) - { - temp_p->scsi_id = temp_p->adapter_control & HWSCSIID; - temp_p->scsi_id_b = temp_p->scsi_id; - } - else - { - temp_p->scsi_id = (temp_p->adapter_control >> 8) & HSCSIID; - temp_p->scsi_id_b = temp_p->adapter_control & HSCSIID; - } - aic7xxx_load_seeprom(temp_p, &sxfrctl1); - break; - } - - case 2: - case 3: - temp_p->chip = AHC_AIC7770 | AHC_VL; - temp_p->features |= AHC_AIC7770_FE; - if (type == 2) - temp_p->flags |= AHC_BIOS_ENABLED; - else - temp_p->flags &= ~AHC_BIOS_ENABLED; - if (aic_inb(temp_p, SCSICONF) & TERM_ENB) - sxfrctl1 = STPWEN; - aic7xxx_load_seeprom(temp_p, &sxfrctl1); - temp_p->board_name_index = 4; - if (aic7xxx_verbose & VERBOSE_PROBE2) - printk("aic7xxx: <%s> at VLB %d\n", - board_names[2], slot); - switch( aic_inb(temp_p, STATUS_2840) & BIOS_SEL ) - { - case 0x00: - temp_p->bios_address = 0xe0000; - break; - case 0x20: - temp_p->bios_address = 0xc8000; - break; - case 0x40: - temp_p->bios_address = 0xd0000; - break; - case 0x60: - temp_p->bios_address = 0xd8000; - break; - default: - break; /* can't get here */ - } - break; - - default: /* Won't get here. */ - break; - } - if (aic7xxx_verbose & VERBOSE_PROBE2) - { - printk(KERN_INFO "aic7xxx: BIOS %sabled, IO Port 0x%lx, IRQ %d (%s)\n", - (temp_p->flags & AHC_USEDEFAULTS) ? "dis" : "en", temp_p->base, - temp_p->irq, - (temp_p->pause & IRQMS) ? "level sensitive" : "edge triggered"); - printk(KERN_INFO "aic7xxx: Extended translation %sabled.\n", - (temp_p->flags & AHC_EXTEND_TRANS_A) ? "en" : "dis"); - } - - /* - * All the 7770 based chipsets have this bug - */ - temp_p->bugs |= AHC_BUG_TMODE_WIDEODD; - - /* - * Set the FIFO threshold and the bus off time. - */ - hostconf = aic_inb(temp_p, HOSTCONF); - aic_outb(temp_p, hostconf & DFTHRSH, BUSSPD); - aic_outb(temp_p, (hostconf << 2) & BOFF, BUSTIME); - slot++; - found++; - } - -#endif /* defined(__i386__) || defined(__alpha__) */ - - /* - * Now, we re-order the probed devices by BIOS address and BUS class. - * In general, we follow this algorithm to make the adapters show up - * in the same order under linux that the computer finds them. - * 1: All VLB/EISA cards with BIOS_ENABLED first, according to BIOS - * address, going from lowest to highest. - * 2: All PCI controllers with BIOS_ENABLED next, according to BIOS - * address, going from lowest to highest. - * 3: Remaining VLB/EISA controllers going in slot order. - * 4: Remaining PCI controllers, going in PCI device order (reversible) - */ - - { - struct aic7xxx_host *sort_list[4] = { NULL, NULL, NULL, NULL }; - struct aic7xxx_host *vlb, *pci; - struct aic7xxx_host *prev_p; - struct aic7xxx_host *p; - unsigned char left; - - prev_p = vlb = pci = NULL; - - temp_p = list_p; - while (temp_p != NULL) - { - switch(temp_p->chip & ~AHC_CHIPID_MASK) - { - case AHC_EISA: - case AHC_VL: - { - p = temp_p; - if (p->flags & AHC_BIOS_ENABLED) - vlb = sort_list[0]; - else - vlb = sort_list[2]; - - if (vlb == NULL) - { - vlb = temp_p; - temp_p = temp_p->next; - vlb->next = NULL; - } - else - { - current_p = vlb; - prev_p = NULL; - while ( (current_p != NULL) && - (current_p->bios_address < temp_p->bios_address)) - { - prev_p = current_p; - current_p = current_p->next; - } - if (prev_p != NULL) - { - prev_p->next = temp_p; - temp_p = temp_p->next; - prev_p->next->next = current_p; - } - else - { - vlb = temp_p; - temp_p = temp_p->next; - vlb->next = current_p; - } - } - - if (p->flags & AHC_BIOS_ENABLED) - sort_list[0] = vlb; - else - sort_list[2] = vlb; - - break; - } - default: /* All PCI controllers fall through to default */ - { - - p = temp_p; - if (p->flags & AHC_BIOS_ENABLED) - pci = sort_list[1]; - else - pci = sort_list[3]; - - if (pci == NULL) - { - pci = temp_p; - temp_p = temp_p->next; - pci->next = NULL; - } - else - { - current_p = pci; - prev_p = NULL; - if (!aic7xxx_reverse_scan) - { - while ( (current_p != NULL) && - ( (PCI_SLOT(current_p->pci_device_fn) | - (current_p->pci_bus << 8)) < - (PCI_SLOT(temp_p->pci_device_fn) | - (temp_p->pci_bus << 8)) ) ) - { - prev_p = current_p; - current_p = current_p->next; - } - } - else - { - while ( (current_p != NULL) && - ( (PCI_SLOT(current_p->pci_device_fn) | - (current_p->pci_bus << 8)) > - (PCI_SLOT(temp_p->pci_device_fn) | - (temp_p->pci_bus << 8)) ) ) - { - prev_p = current_p; - current_p = current_p->next; - } - } - /* - * Are we dealing with a 7895/6/7/9 where we need to sort the - * channels as well, if so, the bios_address values should - * be the same - */ - if ( (current_p) && (temp_p->flags & AHC_MULTI_CHANNEL) && - (temp_p->pci_bus == current_p->pci_bus) && - (PCI_SLOT(temp_p->pci_device_fn) == - PCI_SLOT(current_p->pci_device_fn)) ) - { - if (temp_p->flags & AHC_CHNLB) - { - if ( !(temp_p->flags & AHC_CHANNEL_B_PRIMARY) ) - { - prev_p = current_p; - current_p = current_p->next; - } - } - else - { - if (temp_p->flags & AHC_CHANNEL_B_PRIMARY) - { - prev_p = current_p; - current_p = current_p->next; - } - } - } - if (prev_p != NULL) - { - prev_p->next = temp_p; - temp_p = temp_p->next; - prev_p->next->next = current_p; - } - else - { - pci = temp_p; - temp_p = temp_p->next; - pci->next = current_p; - } - } - - if (p->flags & AHC_BIOS_ENABLED) - sort_list[1] = pci; - else - sort_list[3] = pci; - - break; - } - } /* End of switch(temp_p->type) */ - } /* End of while (temp_p != NULL) */ - /* - * At this point, the cards have been broken into 4 sorted lists, now - * we run through the lists in order and register each controller - */ - { - int i; - - left = found; - for (i=0; i<ARRAY_SIZE(sort_list); i++) - { - temp_p = sort_list[i]; - while(temp_p != NULL) - { - template->name = board_names[temp_p->board_name_index]; - p = aic7xxx_alloc(template, temp_p); - if (p != NULL) - { - p->instance = found - left; - if (aic7xxx_register(template, p, (--left)) == 0) - { - found--; - aic7xxx_release(p->host); - scsi_unregister(p->host); - } - else if (aic7xxx_dump_card) - { - pause_sequencer(p); - aic7xxx_print_card(p); - aic7xxx_print_scratch_ram(p); - unpause_sequencer(p, TRUE); - } - } - current_p = temp_p; - temp_p = (struct aic7xxx_host *)temp_p->next; - kfree(current_p); - } - } - } - } - return (found); -} - -/*+F************************************************************************* - * Function: - * aic7xxx_buildscb - * - * Description: - * Build a SCB. - *-F*************************************************************************/ -static void aic7xxx_buildscb(struct aic7xxx_host *p, struct scsi_cmnd *cmd, - struct aic7xxx_scb *scb) -{ - unsigned short mask; - struct aic7xxx_hwscb *hscb; - struct aic_dev_data *aic_dev = cmd->device->hostdata; - struct scsi_device *sdptr = cmd->device; - unsigned char tindex = TARGET_INDEX(cmd); - int use_sg; - - mask = (0x01 << tindex); - hscb = scb->hscb; - - /* - * Setup the control byte if we need negotiation and have not - * already requested it. - */ - hscb->control = 0; - scb->tag_action = 0; - - if (p->discenable & mask) - { - hscb->control |= DISCENB; - /* We always force TEST_UNIT_READY to untagged */ - if (cmd->cmnd[0] != TEST_UNIT_READY && sdptr->simple_tags) - { - hscb->control |= MSG_SIMPLE_Q_TAG; - scb->tag_action = MSG_SIMPLE_Q_TAG; - } - } - if ( !(aic_dev->dtr_pending) && - (aic_dev->needppr || aic_dev->needwdtr || aic_dev->needsdtr) && - (aic_dev->flags & DEVICE_DTR_SCANNED) ) - { - aic_dev->dtr_pending = 1; - scb->tag_action = 0; - hscb->control &= DISCENB; - hscb->control |= MK_MESSAGE; - if(aic_dev->needppr) - { - scb->flags |= SCB_MSGOUT_PPR; - } - else if(aic_dev->needwdtr) - { - scb->flags |= SCB_MSGOUT_WDTR; - } - else if(aic_dev->needsdtr) - { - scb->flags |= SCB_MSGOUT_SDTR; - } - scb->flags |= SCB_DTR_SCB; - } - hscb->target_channel_lun = ((cmd->device->id << 4) & 0xF0) | - ((cmd->device->channel & 0x01) << 3) | (cmd->device->lun & 0x07); - - /* - * The interpretation of request_buffer and request_bufflen - * changes depending on whether or not use_sg is zero; a - * non-zero use_sg indicates the number of elements in the - * scatter-gather array. - */ - - /* - * XXX - this relies on the host data being stored in a - * little-endian format. - */ - hscb->SCSI_cmd_length = cmd->cmd_len; - memcpy(scb->cmnd, cmd->cmnd, cmd->cmd_len); - hscb->SCSI_cmd_pointer = cpu_to_le32(SCB_DMA_ADDR(scb, scb->cmnd)); - - use_sg = scsi_dma_map(cmd); - BUG_ON(use_sg < 0); - - if (use_sg) { - struct scatterlist *sg; /* Must be mid-level SCSI code scatterlist */ - - /* - * We must build an SG list in adapter format, as the kernel's SG list - * cannot be used directly because of data field size (__alpha__) - * differences and the kernel SG list uses virtual addresses where - * we need physical addresses. - */ - int i; - - scb->sg_length = 0; - - - /* - * Copy the segments into the SG array. NOTE!!! - We used to - * have the first entry both in the data_pointer area and the first - * SG element. That has changed somewhat. We still have the first - * entry in both places, but now we download the address of - * scb->sg_list[1] instead of 0 to the sg pointer in the hscb. - */ - scsi_for_each_sg(cmd, sg, use_sg, i) { - unsigned int len = sg_dma_len(sg); - scb->sg_list[i].address = cpu_to_le32(sg_dma_address(sg)); - scb->sg_list[i].length = cpu_to_le32(len); - scb->sg_length += len; - } - /* Copy the first SG into the data pointer area. */ - hscb->data_pointer = scb->sg_list[0].address; - hscb->data_count = scb->sg_list[0].length; - scb->sg_count = i; - hscb->SG_segment_count = i; - hscb->SG_list_pointer = cpu_to_le32(SCB_DMA_ADDR(scb, &scb->sg_list[1])); - } else { - scb->sg_count = 0; - scb->sg_length = 0; - hscb->SG_segment_count = 0; - hscb->SG_list_pointer = 0; - hscb->data_count = 0; - hscb->data_pointer = 0; - } -} - -/*+F************************************************************************* - * Function: - * aic7xxx_queue - * - * Description: - * Queue a SCB to the controller. - *-F*************************************************************************/ -static int aic7xxx_queue_lck(struct scsi_cmnd *cmd, void (*fn)(struct scsi_cmnd *)) -{ - struct aic7xxx_host *p; - struct aic7xxx_scb *scb; - struct aic_dev_data *aic_dev; - - p = (struct aic7xxx_host *) cmd->device->host->hostdata; - - aic_dev = cmd->device->hostdata; -#ifdef AIC7XXX_VERBOSE_DEBUGGING - if (aic_dev->active_cmds > aic_dev->max_q_depth) - { - printk(WARN_LEAD "Commands queued exceeds queue " - "depth, active=%d\n", - p->host_no, CTL_OF_CMD(cmd), - aic_dev->active_cmds); - } -#endif - - scb = scbq_remove_head(&p->scb_data->free_scbs); - if (scb == NULL) - { - aic7xxx_allocate_scb(p); - scb = scbq_remove_head(&p->scb_data->free_scbs); - if(scb == NULL) - { - printk(WARN_LEAD "Couldn't get a free SCB.\n", p->host_no, - CTL_OF_CMD(cmd)); - return 1; - } - } - scb->cmd = cmd; - - /* - * Make sure the scsi_cmnd pointer is saved, the struct it points to - * is set up properly, and the parity error flag is reset, then send - * the SCB to the sequencer and watch the fun begin. - */ - aic7xxx_position(cmd) = scb->hscb->tag; - cmd->scsi_done = fn; - cmd->result = DID_OK; - aic7xxx_error(cmd) = DID_OK; - aic7xxx_status(cmd) = 0; - cmd->host_scribble = NULL; - - /* - * Construct the SCB beforehand, so the sequencer is - * paused a minimal amount of time. - */ - aic7xxx_buildscb(p, cmd, scb); - - scb->flags |= SCB_ACTIVE | SCB_WAITINGQ; - - scbq_insert_tail(&p->waiting_scbs, scb); - aic7xxx_run_waiting_queues(p); - return (0); -} - -static DEF_SCSI_QCMD(aic7xxx_queue) - -/*+F************************************************************************* - * Function: - * aic7xxx_bus_device_reset - * - * Description: - * Abort or reset the current SCSI command(s). If the scb has not - * previously been aborted, then we attempt to send a BUS_DEVICE_RESET - * message to the target. If the scb has previously been unsuccessfully - * aborted, then we will reset the channel and have all devices renegotiate. - * Returns an enumerated type that indicates the status of the operation. - *-F*************************************************************************/ -static int __aic7xxx_bus_device_reset(struct scsi_cmnd *cmd) -{ - struct aic7xxx_host *p; - struct aic7xxx_scb *scb; - struct aic7xxx_hwscb *hscb; - int channel; - unsigned char saved_scbptr, lastphase; - unsigned char hscb_index; - int disconnected; - struct aic_dev_data *aic_dev; - - if(cmd == NULL) - { - printk(KERN_ERR "aic7xxx_bus_device_reset: called with NULL cmd!\n"); - return FAILED; - } - p = (struct aic7xxx_host *)cmd->device->host->hostdata; - aic_dev = AIC_DEV(cmd); - if(aic7xxx_position(cmd) < p->scb_data->numscbs) - scb = (p->scb_data->scb_array[aic7xxx_position(cmd)]); - else - return FAILED; - - hscb = scb->hscb; - - aic7xxx_isr(p); - aic7xxx_done_cmds_complete(p); - /* If the command was already complete or just completed, then we didn't - * do a reset, return FAILED */ - if(!(scb->flags & SCB_ACTIVE)) - return FAILED; - - pause_sequencer(p); - lastphase = aic_inb(p, LASTPHASE); - if (aic7xxx_verbose & VERBOSE_RESET_PROCESS) - { - printk(INFO_LEAD "Bus Device reset, scb flags 0x%x, ", - p->host_no, CTL_OF_SCB(scb), scb->flags); - switch (lastphase) - { - case P_DATAOUT: - printk("Data-Out phase\n"); - break; - case P_DATAIN: - printk("Data-In phase\n"); - break; - case P_COMMAND: - printk("Command phase\n"); - break; - case P_MESGOUT: - printk("Message-Out phase\n"); - break; - case P_STATUS: - printk("Status phase\n"); - break; - case P_MESGIN: - printk("Message-In phase\n"); - break; - default: - /* - * We're not in a valid phase, so assume we're idle. - */ - printk("while idle, LASTPHASE = 0x%x\n", lastphase); - break; - } - printk(INFO_LEAD "SCSISIGI 0x%x, SEQADDR 0x%x, SSTAT0 0x%x, SSTAT1 " - "0x%x\n", p->host_no, CTL_OF_SCB(scb), - aic_inb(p, SCSISIGI), - aic_inb(p, SEQADDR0) | (aic_inb(p, SEQADDR1) << 8), - aic_inb(p, SSTAT0), aic_inb(p, SSTAT1)); - printk(INFO_LEAD "SG_CACHEPTR 0x%x, SSTAT2 0x%x, STCNT 0x%x\n", p->host_no, - CTL_OF_SCB(scb), - (p->features & AHC_ULTRA2) ? aic_inb(p, SG_CACHEPTR) : 0, - aic_inb(p, SSTAT2), - aic_inb(p, STCNT + 2) << 16 | aic_inb(p, STCNT + 1) << 8 | - aic_inb(p, STCNT)); - } - - channel = cmd->device->channel; - - /* - * Send a Device Reset Message: - * The target that is holding up the bus may not be the same as - * the one that triggered this timeout (different commands have - * different timeout lengths). Our strategy here is to queue an - * abort message to the timed out target if it is disconnected. - * Otherwise, if we have an active target we stuff the message buffer - * with an abort message and assert ATN in the hopes that the target - * will let go of the bus and go to the mesgout phase. If this - * fails, we'll get another timeout a few seconds later which will - * attempt a bus reset. - */ - saved_scbptr = aic_inb(p, SCBPTR); - disconnected = FALSE; - - if (lastphase != P_BUSFREE) - { - if (aic_inb(p, SCB_TAG) >= p->scb_data->numscbs) - { - printk(WARN_LEAD "Invalid SCB ID %d is active, " - "SCB flags = 0x%x.\n", p->host_no, - CTL_OF_CMD(cmd), scb->hscb->tag, scb->flags); - unpause_sequencer(p, FALSE); - return FAILED; - } - if (scb->hscb->tag == aic_inb(p, SCB_TAG)) - { - if ( (lastphase == P_MESGOUT) || (lastphase == P_MESGIN) ) - { - printk(WARN_LEAD "Device reset, Message buffer " - "in use\n", p->host_no, CTL_OF_SCB(scb)); - unpause_sequencer(p, FALSE); - return FAILED; - } - - if (aic7xxx_verbose & VERBOSE_RESET_PROCESS) - printk(INFO_LEAD "Device reset message in " - "message buffer\n", p->host_no, CTL_OF_SCB(scb)); - scb->flags |= SCB_RESET | SCB_DEVICE_RESET; - aic7xxx_error(cmd) = DID_RESET; - aic_dev->flags |= BUS_DEVICE_RESET_PENDING; - /* Send the abort message to the active SCB. */ - aic_outb(p, HOST_MSG, MSG_OUT); - aic_outb(p, lastphase | ATNO, SCSISIGO); - unpause_sequencer(p, FALSE); - spin_unlock_irq(p->host->host_lock); - ssleep(1); - spin_lock_irq(p->host->host_lock); - if(aic_dev->flags & BUS_DEVICE_RESET_PENDING) - return FAILED; - else - return SUCCESS; - } - } /* if (last_phase != P_BUSFREE).....indicates we are idle and can work */ - /* - * Simply set the MK_MESSAGE flag and the SEQINT handler will do - * the rest on a reconnect/connect. - */ - scb->hscb->control |= MK_MESSAGE; - scb->flags |= SCB_RESET | SCB_DEVICE_RESET; - aic_dev->flags |= BUS_DEVICE_RESET_PENDING; - /* - * Check to see if the command is on the qinfifo. If it is, then we will - * not need to queue the command again since the card should start it soon - */ - if (aic7xxx_search_qinfifo(p, cmd->device->channel, cmd->device->id, cmd->device->lun, hscb->tag, - 0, TRUE, NULL) == 0) - { - disconnected = TRUE; - if ((hscb_index = aic7xxx_find_scb(p, scb)) != SCB_LIST_NULL) - { - unsigned char scb_control; - - aic_outb(p, hscb_index, SCBPTR); - scb_control = aic_inb(p, SCB_CONTROL); - /* - * If the DISCONNECTED bit is not set in SCB_CONTROL, then we are - * actually on the waiting list, not disconnected, and we don't - * need to requeue the command. - */ - disconnected = (scb_control & DISCONNECTED); - aic_outb(p, scb_control | MK_MESSAGE, SCB_CONTROL); - } - if (disconnected) - { - /* - * Actually requeue this SCB in case we can select the - * device before it reconnects. This can result in the command - * being on the qinfifo twice, but we don't care because it will - * all get cleaned up if/when the reset takes place. - */ - if (aic7xxx_verbose & VERBOSE_RESET_PROCESS) - printk(INFO_LEAD "Queueing device reset command.\n", p->host_no, - CTL_OF_SCB(scb)); - p->qinfifo[p->qinfifonext++] = scb->hscb->tag; - if (p->features & AHC_QUEUE_REGS) - aic_outb(p, p->qinfifonext, HNSCB_QOFF); - else - aic_outb(p, p->qinfifonext, KERNEL_QINPOS); - scb->flags |= SCB_QUEUED_ABORT; - } - } - aic_outb(p, saved_scbptr, SCBPTR); - unpause_sequencer(p, FALSE); - spin_unlock_irq(p->host->host_lock); - msleep(1000/4); - spin_lock_irq(p->host->host_lock); - if(aic_dev->flags & BUS_DEVICE_RESET_PENDING) - return FAILED; - else - return SUCCESS; -} - -static int aic7xxx_bus_device_reset(struct scsi_cmnd *cmd) -{ - int rc; - - spin_lock_irq(cmd->device->host->host_lock); - rc = __aic7xxx_bus_device_reset(cmd); - spin_unlock_irq(cmd->device->host->host_lock); - - return rc; -} - - -/*+F************************************************************************* - * Function: - * aic7xxx_panic_abort - * - * Description: - * Abort the current SCSI command(s). - *-F*************************************************************************/ -static void aic7xxx_panic_abort(struct aic7xxx_host *p, struct scsi_cmnd *cmd) -{ - - printk("aic7xxx driver version %s\n", AIC7XXX_C_VERSION); - printk("Controller type:\n %s\n", board_names[p->board_name_index]); - printk("p->flags=0x%lx, p->chip=0x%x, p->features=0x%x, " - "sequencer %s paused\n", - p->flags, p->chip, p->features, - (aic_inb(p, HCNTRL) & PAUSE) ? "is" : "isn't" ); - pause_sequencer(p); - disable_irq(p->irq); - aic7xxx_print_card(p); - aic7xxx_print_scratch_ram(p); - spin_unlock_irq(p->host->host_lock); - for(;;) barrier(); -} - -/*+F************************************************************************* - * Function: - * aic7xxx_abort - * - * Description: - * Abort the current SCSI command(s). - *-F*************************************************************************/ -static int __aic7xxx_abort(struct scsi_cmnd *cmd) -{ - struct aic7xxx_scb *scb = NULL; - struct aic7xxx_host *p; - int found=0, disconnected; - unsigned char saved_hscbptr, hscbptr, scb_control; - struct aic_dev_data *aic_dev; - - if(cmd == NULL) - { - printk(KERN_ERR "aic7xxx_abort: called with NULL cmd!\n"); - return FAILED; - } - p = (struct aic7xxx_host *)cmd->device->host->hostdata; - aic_dev = AIC_DEV(cmd); - if(aic7xxx_position(cmd) < p->scb_data->numscbs) - scb = (p->scb_data->scb_array[aic7xxx_position(cmd)]); - else - return FAILED; - - aic7xxx_isr(p); - aic7xxx_done_cmds_complete(p); - /* If the command was already complete or just completed, then we didn't - * do a reset, return FAILED */ - if(!(scb->flags & SCB_ACTIVE)) - return FAILED; - - pause_sequencer(p); - - /* - * I added a new config option to the driver: "panic_on_abort" that will - * cause the driver to panic and the machine to stop on the first abort - * or reset call into the driver. At that point, it prints out a lot of - * useful information for me which I can then use to try and debug the - * problem. Simply enable the boot time prompt in order to activate this - * code. - */ - if (aic7xxx_panic_on_abort) - aic7xxx_panic_abort(p, cmd); - - if (aic7xxx_verbose & VERBOSE_ABORT) - { - printk(INFO_LEAD "Aborting scb %d, flags 0x%x, SEQADDR 0x%x, LASTPHASE " - "0x%x\n", - p->host_no, CTL_OF_SCB(scb), scb->hscb->tag, scb->flags, - aic_inb(p, SEQADDR0) | (aic_inb(p, SEQADDR1) << 8), - aic_inb(p, LASTPHASE)); - printk(INFO_LEAD "SG_CACHEPTR 0x%x, SG_COUNT %d, SCSISIGI 0x%x\n", - p->host_no, CTL_OF_SCB(scb), (p->features & AHC_ULTRA2) ? - aic_inb(p, SG_CACHEPTR) : 0, aic_inb(p, SG_COUNT), - aic_inb(p, SCSISIGI)); - printk(INFO_LEAD "SSTAT0 0x%x, SSTAT1 0x%x, SSTAT2 0x%x\n", - p->host_no, CTL_OF_SCB(scb), aic_inb(p, SSTAT0), - aic_inb(p, SSTAT1), aic_inb(p, SSTAT2)); - } - - if (scb->flags & SCB_WAITINGQ) - { - if (aic7xxx_verbose & VERBOSE_ABORT_PROCESS) - printk(INFO_LEAD "SCB found on waiting list and " - "aborted.\n", p->host_no, CTL_OF_SCB(scb)); - scbq_remove(&p->waiting_scbs, scb); - scbq_remove(&aic_dev->delayed_scbs, scb); - aic_dev->active_cmds++; - p->activescbs++; - scb->flags &= ~(SCB_WAITINGQ | SCB_ACTIVE); - scb->flags |= SCB_ABORT | SCB_QUEUED_FOR_DONE; - goto success; - } - -/* - * We just checked the waiting_q, now for the QINFIFO - */ - if ( ((found = aic7xxx_search_qinfifo(p, cmd->device->id, cmd->device->channel, - cmd->device->lun, scb->hscb->tag, SCB_ABORT | SCB_QUEUED_FOR_DONE, - FALSE, NULL)) != 0) && - (aic7xxx_verbose & VERBOSE_ABORT_PROCESS)) - { - printk(INFO_LEAD "SCB found in QINFIFO and aborted.\n", p->host_no, - CTL_OF_SCB(scb)); - goto success; - } - -/* - * QINFIFO, waitingq, completeq done. Next, check WAITING_SCB list in card - */ - - saved_hscbptr = aic_inb(p, SCBPTR); - if ((hscbptr = aic7xxx_find_scb(p, scb)) != SCB_LIST_NULL) - { - aic_outb(p, hscbptr, SCBPTR); - scb_control = aic_inb(p, SCB_CONTROL); - disconnected = scb_control & DISCONNECTED; - /* - * If the DISCONNECTED bit is not set in SCB_CONTROL, then we are - * either currently active or on the waiting list. - */ - if(!disconnected && aic_inb(p, LASTPHASE) == P_BUSFREE) { - if (aic7xxx_verbose & VERBOSE_ABORT_PROCESS) - printk(INFO_LEAD "SCB found on hardware waiting" - " list and aborted.\n", p->host_no, CTL_OF_SCB(scb)); - /* If we are the only waiting command, stop the selection engine */ - if (aic_inb(p, WAITING_SCBH) == hscbptr && aic_inb(p, SCB_NEXT) == - SCB_LIST_NULL) - { - aic_outb(p, aic_inb(p, SCSISEQ) & ~ENSELO, SCSISEQ); - aic_outb(p, CLRSELTIMEO, CLRSINT1); - aic_outb(p, SCB_LIST_NULL, WAITING_SCBH); - } - else - { - unsigned char prev, next; - prev = SCB_LIST_NULL; - next = aic_inb(p, WAITING_SCBH); - while(next != SCB_LIST_NULL) - { - aic_outb(p, next, SCBPTR); - if (next == hscbptr) - { - next = aic_inb(p, SCB_NEXT); - if (prev != SCB_LIST_NULL) - { - aic_outb(p, prev, SCBPTR); - aic_outb(p, next, SCB_NEXT); - } - else - aic_outb(p, next, WAITING_SCBH); - aic_outb(p, hscbptr, SCBPTR); - next = SCB_LIST_NULL; - } - else - { - prev = next; - next = aic_inb(p, SCB_NEXT); - } - } - } - aic_outb(p, SCB_LIST_NULL, SCB_TAG); - aic_outb(p, 0, SCB_CONTROL); - aic7xxx_add_curscb_to_free_list(p); - scb->flags = SCB_ABORT | SCB_QUEUED_FOR_DONE; - goto success; - } - else if (!disconnected) - { - /* - * We are the currently active command - */ - if((aic_inb(p, LASTPHASE) == P_MESGIN) || - (aic_inb(p, LASTPHASE) == P_MESGOUT)) - { - /* - * Message buffer busy, unable to abort - */ - printk(INFO_LEAD "message buffer busy, unable to abort.\n", - p->host_no, CTL_OF_SCB(scb)); - unpause_sequencer(p, FALSE); - return FAILED; - } - /* Fallthrough to below, set ATNO after we set SCB_CONTROL */ - } - aic_outb(p, scb_control | MK_MESSAGE, SCB_CONTROL); - if(!disconnected) - { - aic_outb(p, HOST_MSG, MSG_OUT); - aic_outb(p, aic_inb(p, SCSISIGI) | ATNO, SCSISIGO); - } - aic_outb(p, saved_hscbptr, SCBPTR); - } - else - { - /* - * The scb isn't in the card at all and it is active and it isn't in - * any of the queues, so it must be disconnected and paged out. Fall - * through to the code below. - */ - disconnected = 1; - } - - p->flags |= AHC_ABORT_PENDING; - scb->flags |= SCB_QUEUED_ABORT | SCB_ABORT | SCB_RECOVERY_SCB; - scb->hscb->control |= MK_MESSAGE; - if(disconnected) - { - if (aic7xxx_verbose & VERBOSE_ABORT_PROCESS) - printk(INFO_LEAD "SCB disconnected. Queueing Abort" - " SCB.\n", p->host_no, CTL_OF_SCB(scb)); - p->qinfifo[p->qinfifonext++] = scb->hscb->tag; - if (p->features & AHC_QUEUE_REGS) - aic_outb(p, p->qinfifonext, HNSCB_QOFF); - else - aic_outb(p, p->qinfifonext, KERNEL_QINPOS); - } - unpause_sequencer(p, FALSE); - spin_unlock_irq(p->host->host_lock); - msleep(1000/4); - spin_lock_irq(p->host->host_lock); - if (p->flags & AHC_ABORT_PENDING) - { - if (aic7xxx_verbose & VERBOSE_ABORT_RETURN) - printk(INFO_LEAD "Abort never delivered, returning FAILED\n", p->host_no, - CTL_OF_CMD(cmd)); - p->flags &= ~AHC_ABORT_PENDING; - return FAILED; - } - if (aic7xxx_verbose & VERBOSE_ABORT_RETURN) - printk(INFO_LEAD "Abort successful.\n", p->host_no, CTL_OF_CMD(cmd)); - return SUCCESS; - -success: - if (aic7xxx_verbose & VERBOSE_ABORT_RETURN) - printk(INFO_LEAD "Abort successful.\n", p->host_no, CTL_OF_CMD(cmd)); - aic7xxx_run_done_queue(p, TRUE); - unpause_sequencer(p, FALSE); - return SUCCESS; -} - -static int aic7xxx_abort(struct scsi_cmnd *cmd) -{ - int rc; - - spin_lock_irq(cmd->device->host->host_lock); - rc = __aic7xxx_abort(cmd); - spin_unlock_irq(cmd->device->host->host_lock); - - return rc; -} - - -/*+F************************************************************************* - * Function: - * aic7xxx_reset - * - * Description: - * Resetting the bus always succeeds - is has to, otherwise the - * kernel will panic! Try a surgical technique - sending a BUS - * DEVICE RESET message - on the offending target before pulling - * the SCSI bus reset line. - *-F*************************************************************************/ -static int aic7xxx_reset(struct scsi_cmnd *cmd) -{ - struct aic7xxx_scb *scb; - struct aic7xxx_host *p; - struct aic_dev_data *aic_dev; - - p = (struct aic7xxx_host *) cmd->device->host->hostdata; - spin_lock_irq(p->host->host_lock); - - aic_dev = AIC_DEV(cmd); - if(aic7xxx_position(cmd) < p->scb_data->numscbs) - { - scb = (p->scb_data->scb_array[aic7xxx_position(cmd)]); - if (scb->cmd != cmd) - scb = NULL; - } - else - { - scb = NULL; - } - - /* - * I added a new config option to the driver: "panic_on_abort" that will - * cause the driver to panic and the machine to stop on the first abort - * or reset call into the driver. At that point, it prints out a lot of - * useful information for me which I can then use to try and debug the - * problem. Simply enable the boot time prompt in order to activate this - * code. - */ - if (aic7xxx_panic_on_abort) - aic7xxx_panic_abort(p, cmd); - - pause_sequencer(p); - - while((aic_inb(p, INTSTAT) & INT_PEND) && !(p->flags & AHC_IN_ISR)) - { - aic7xxx_isr(p); - pause_sequencer(p); - } - aic7xxx_done_cmds_complete(p); - - if(scb && (scb->cmd == NULL)) - { - /* - * We just completed the command when we ran the isr stuff, so we no - * longer have it. - */ - unpause_sequencer(p, FALSE); - spin_unlock_irq(p->host->host_lock); - return SUCCESS; - } - -/* - * By this point, we want to already know what we are going to do and - * only have the following code implement our course of action. - */ - aic7xxx_reset_channel(p, cmd->device->channel, TRUE); - if (p->features & AHC_TWIN) - { - aic7xxx_reset_channel(p, cmd->device->channel ^ 0x01, TRUE); - restart_sequencer(p); - } - aic_outb(p, aic_inb(p, SIMODE1) & ~(ENREQINIT|ENBUSFREE), SIMODE1); - aic7xxx_clear_intstat(p); - p->flags &= ~AHC_HANDLING_REQINITS; - p->msg_type = MSG_TYPE_NONE; - p->msg_index = 0; - p->msg_len = 0; - aic7xxx_run_done_queue(p, TRUE); - unpause_sequencer(p, FALSE); - spin_unlock_irq(p->host->host_lock); - ssleep(2); - return SUCCESS; -} - -/*+F************************************************************************* - * Function: - * aic7xxx_biosparam - * - * Description: - * Return the disk geometry for the given SCSI device. - * - * Note: - * This function is broken for today's really large drives and needs - * fixed. - *-F*************************************************************************/ -static int -aic7xxx_biosparam(struct scsi_device *sdev, struct block_device *bdev, - sector_t capacity, int geom[]) -{ - sector_t heads, sectors, cylinders; - int ret; - struct aic7xxx_host *p; - unsigned char *buf; - - p = (struct aic7xxx_host *) sdev->host->hostdata; - buf = scsi_bios_ptable(bdev); - - if ( buf ) - { - ret = scsi_partsize(buf, capacity, &geom[2], &geom[0], &geom[1]); - kfree(buf); - if ( ret != -1 ) - return(ret); - } - - heads = 64; - sectors = 32; - cylinders = capacity >> 11; - - if ((p->flags & AHC_EXTEND_TRANS_A) && (cylinders > 1024)) - { - heads = 255; - sectors = 63; - cylinders = capacity >> 14; - if(capacity > (65535 * heads * sectors)) - cylinders = 65535; - else - cylinders = ((unsigned int)capacity) / (unsigned int)(heads * sectors); - } - - geom[0] = (int)heads; - geom[1] = (int)sectors; - geom[2] = (int)cylinders; - - return (0); -} - -/*+F************************************************************************* - * Function: - * aic7xxx_release - * - * Description: - * Free the passed in Scsi_Host memory structures prior to unloading the - * module. - *-F*************************************************************************/ -static int -aic7xxx_release(struct Scsi_Host *host) -{ - struct aic7xxx_host *p = (struct aic7xxx_host *) host->hostdata; - struct aic7xxx_host *next, *prev; - - if(p->irq) - free_irq(p->irq, p); -#ifdef MMAPIO - if(p->maddr) - { - iounmap(p->maddr); - } -#endif /* MMAPIO */ - if(!p->pdev) - release_region(p->base, MAXREG - MINREG); -#ifdef CONFIG_PCI - else { - pci_release_regions(p->pdev); - pci_dev_put(p->pdev); - } -#endif - prev = NULL; - next = first_aic7xxx; - while(next != NULL) - { - if(next == p) - { - if(prev == NULL) - first_aic7xxx = next->next; - else - prev->next = next->next; - } - else - { - prev = next; - } - next = next->next; - } - aic7xxx_free(p); - return(0); -} - -/*+F************************************************************************* - * Function: - * aic7xxx_print_card - * - * Description: - * Print out all of the control registers on the card - * - * NOTE: This function is not yet safe for use on the VLB and EISA - * controllers, so it isn't used on those controllers at all. - *-F*************************************************************************/ -static void -aic7xxx_print_card(struct aic7xxx_host *p) -{ - int i, j, k, chip; - static struct register_ranges { - int num_ranges; - int range_val[32]; - } cards_ds[] = { - { 0, {0,} }, /* none */ - {10, {0x00, 0x05, 0x08, 0x11, 0x18, 0x19, 0x1f, 0x1f, 0x60, 0x60, /*7771*/ - 0x62, 0x66, 0x80, 0x8e, 0x90, 0x95, 0x97, 0x97, 0x9b, 0x9f} }, - { 9, {0x00, 0x05, 0x08, 0x11, 0x18, 0x1f, 0x60, 0x60, 0x62, 0x66, /*7850*/ - 0x80, 0x8e, 0x90, 0x95, 0x97, 0x97, 0x9a, 0x9f} }, - { 9, {0x00, 0x05, 0x08, 0x11, 0x18, 0x1f, 0x60, 0x60, 0x62, 0x66, /*7860*/ - 0x80, 0x8e, 0x90, 0x95, 0x97, 0x97, 0x9a, 0x9f} }, - {10, {0x00, 0x05, 0x08, 0x11, 0x18, 0x19, 0x1c, 0x1f, 0x60, 0x60, /*7870*/ - 0x62, 0x66, 0x80, 0x8e, 0x90, 0x95, 0x97, 0x97, 0x9a, 0x9f} }, - {10, {0x00, 0x05, 0x08, 0x11, 0x18, 0x1a, 0x1c, 0x1f, 0x60, 0x60, /*7880*/ - 0x62, 0x66, 0x80, 0x8e, 0x90, 0x95, 0x97, 0x97, 0x9a, 0x9f} }, - {16, {0x00, 0x05, 0x08, 0x11, 0x18, 0x1f, 0x60, 0x60, 0x62, 0x66, /*7890*/ - 0x84, 0x8e, 0x90, 0x95, 0x97, 0x97, 0x9a, 0x9a, 0x9f, 0x9f, - 0xe0, 0xf1, 0xf4, 0xf4, 0xf6, 0xf6, 0xf8, 0xf8, 0xfa, 0xfc, - 0xfe, 0xff} }, - {12, {0x00, 0x05, 0x08, 0x11, 0x18, 0x19, 0x1b, 0x1f, 0x60, 0x60, /*7895*/ - 0x62, 0x66, 0x80, 0x8e, 0x90, 0x95, 0x97, 0x97, 0x9a, 0x9a, - 0x9f, 0x9f, 0xe0, 0xf1} }, - {16, {0x00, 0x05, 0x08, 0x11, 0x18, 0x1f, 0x60, 0x60, 0x62, 0x66, /*7896*/ - 0x84, 0x8e, 0x90, 0x95, 0x97, 0x97, 0x9a, 0x9a, 0x9f, 0x9f, - 0xe0, 0xf1, 0xf4, 0xf4, 0xf6, 0xf6, 0xf8, 0xf8, 0xfa, 0xfc, - 0xfe, 0xff} }, - {12, {0x00, 0x05, 0x08, 0x11, 0x18, 0x1f, 0x60, 0x60, 0x62, 0x66, /*7892*/ - 0x84, 0x8e, 0x90, 0x95, 0x97, 0x97, 0x9a, 0x9a, 0x9c, 0x9f, - 0xe0, 0xf1, 0xf4, 0xfc} }, - {12, {0x00, 0x05, 0x08, 0x11, 0x18, 0x1f, 0x60, 0x60, 0x62, 0x66, /*7899*/ - 0x84, 0x8e, 0x90, 0x95, 0x97, 0x97, 0x9a, 0x9a, 0x9c, 0x9f, - 0xe0, 0xf1, 0xf4, 0xfc} }, - }; - chip = p->chip & AHC_CHIPID_MASK; - printk("%s at ", - board_names[p->board_name_index]); - switch(p->chip & ~AHC_CHIPID_MASK) - { - case AHC_VL: - printk("VLB Slot %d.\n", p->pci_device_fn); - break; - case AHC_EISA: - printk("EISA Slot %d.\n", p->pci_device_fn); - break; - case AHC_PCI: - default: - printk("PCI %d/%d/%d.\n", p->pci_bus, PCI_SLOT(p->pci_device_fn), - PCI_FUNC(p->pci_device_fn)); - break; - } - - /* - * the registers on the card.... - */ - printk("Card Dump:\n"); - k = 0; - for(i=0; i<cards_ds[chip].num_ranges; i++) - { - for(j = cards_ds[chip].range_val[ i * 2 ]; - j <= cards_ds[chip].range_val[ i * 2 + 1 ] ; - j++) - { - printk("%02x:%02x ", j, aic_inb(p, j)); - if(++k == 13) - { - printk("\n"); - k=0; - } - } - } - if(k != 0) - printk("\n"); - - /* - * If this was an Ultra2 controller, then we just hosed the card in terms - * of the QUEUE REGS. This function is only called at init time or by - * the panic_abort function, so it's safe to assume a generic init time - * setting here - */ - - if(p->features & AHC_QUEUE_REGS) - { - aic_outb(p, 0, SDSCB_QOFF); - aic_outb(p, 0, SNSCB_QOFF); - aic_outb(p, 0, HNSCB_QOFF); - } - -} - -/*+F************************************************************************* - * Function: - * aic7xxx_print_scratch_ram - * - * Description: - * Print out the scratch RAM values on the card. - *-F*************************************************************************/ -static void -aic7xxx_print_scratch_ram(struct aic7xxx_host *p) -{ - int i, k; - - k = 0; - printk("Scratch RAM:\n"); - for(i = SRAM_BASE; i < SEQCTL; i++) - { - printk("%02x:%02x ", i, aic_inb(p, i)); - if(++k == 13) - { - printk("\n"); - k=0; - } - } - if (p->features & AHC_MORE_SRAM) - { - for(i = TARG_OFFSET; i < 0x80; i++) - { - printk("%02x:%02x ", i, aic_inb(p, i)); - if(++k == 13) - { - printk("\n"); - k=0; - } - } - } - printk("\n"); -} - - -#include "aic7xxx_old/aic7xxx_proc.c" - -MODULE_LICENSE("Dual BSD/GPL"); -MODULE_VERSION(AIC7XXX_H_VERSION); - - -static struct scsi_host_template driver_template = { - .show_info = aic7xxx_show_info, - .detect = aic7xxx_detect, - .release = aic7xxx_release, - .info = aic7xxx_info, - .queuecommand = aic7xxx_queue, - .slave_alloc = aic7xxx_slave_alloc, - .slave_configure = aic7xxx_slave_configure, - .slave_destroy = aic7xxx_slave_destroy, - .bios_param = aic7xxx_biosparam, - .eh_abort_handler = aic7xxx_abort, - .eh_device_reset_handler = aic7xxx_bus_device_reset, - .eh_host_reset_handler = aic7xxx_reset, - .can_queue = 255, - .this_id = -1, - .max_sectors = 2048, - .cmd_per_lun = 3, - .use_clustering = ENABLE_CLUSTERING, -}; - -#include "scsi_module.c" - -/* - * Overrides for Emacs so that we almost follow Linus's tabbing style. - * Emacs will notice this stuff at the end of the file and automatically - * adjust the settings for this buffer only. This must remain at the end - * of the file. - * --------------------------------------------------------------------------- - * Local variables: - * c-indent-level: 2 - * c-brace-imaginary-offset: 0 - * c-brace-offset: -2 - * c-argdecl-indent: 2 - * c-label-offset: -2 - * c-continued-statement-offset: 2 - * c-continued-brace-offset: 0 - * indent-tabs-mode: nil - * tab-width: 8 - * End: - */ diff --git a/drivers/scsi/aic7xxx_old/aic7xxx.h b/drivers/scsi/aic7xxx_old/aic7xxx.h deleted file mode 100644 index 0116c81..0000000 --- a/drivers/scsi/aic7xxx_old/aic7xxx.h +++ /dev/null @@ -1,28 +0,0 @@ -/*+M************************************************************************* - * Adaptec AIC7xxx device driver for Linux. - * - * Copyright (c) 1994 John Aycock - * The University of Calgary Department of Computer Science. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2, or (at your option) - * any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; see the file COPYING. If not, write to - * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. - * - * $Id: aic7xxx.h,v 3.2 1996/07/23 03:37:26 deang Exp $ - *-M*************************************************************************/ -#ifndef _aic7xxx_h -#define _aic7xxx_h - -#define AIC7XXX_H_VERSION "5.2.0" - -#endif /* _aic7xxx_h */ diff --git a/drivers/scsi/aic7xxx_old/aic7xxx.reg b/drivers/scsi/aic7xxx_old/aic7xxx.reg deleted file mode 100644 index f67b4bc..0000000 --- a/drivers/scsi/aic7xxx_old/aic7xxx.reg +++ /dev/null @@ -1,1401 +0,0 @@ -/* - * Aic7xxx register and scratch ram definitions. - * - * Copyright (c) 1994-1998 Justin Gibbs. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification, immediately at the beginning of the file. - * 2. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * Where this Software is combined with software released under the terms of - * the GNU General Public License ("GPL") and the terms of the GPL would require the - * combined work to also be released under the terms of the GPL, the terms - * and conditions of this License will apply in addition to those of the - * GPL with the exception of any terms or conditions of this License that - * conflict with, or are expressly prohibited by, the GPL. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR - * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $Id: aic7xxx.reg,v 1.4 1997/06/27 19:38:39 gibbs Exp $ - */ - -/* - * This file is processed by the aic7xxx_asm utility for use in assembling - * firmware for the aic7xxx family of SCSI host adapters as well as to generate - * a C header file for use in the kernel portion of the Aic7xxx driver. - * - * All page numbers refer to the Adaptec AIC-7770 Data Book available from - * Adaptec's Technical Documents Department 1-800-934-2766 - */ - -/* - * SCSI Sequence Control (p. 3-11). - * Each bit, when set starts a specific SCSI sequence on the bus - */ -register SCSISEQ { - address 0x000 - access_mode RW - bit TEMODE 0x80 - bit ENSELO 0x40 - bit ENSELI 0x20 - bit ENRSELI 0x10 - bit ENAUTOATNO 0x08 - bit ENAUTOATNI 0x04 - bit ENAUTOATNP 0x02 - bit SCSIRSTO 0x01 -} - -/* - * SCSI Transfer Control 0 Register (pp. 3-13). - * Controls the SCSI module data path. - */ -register SXFRCTL0 { - address 0x001 - access_mode RW - bit DFON 0x80 - bit DFPEXP 0x40 - bit FAST20 0x20 - bit CLRSTCNT 0x10 - bit SPIOEN 0x08 - bit SCAMEN 0x04 - bit CLRCHN 0x02 -} - -/* - * SCSI Transfer Control 1 Register (pp. 3-14,15). - * Controls the SCSI module data path. - */ -register SXFRCTL1 { - address 0x002 - access_mode RW - bit BITBUCKET 0x80 - bit SWRAPEN 0x40 - bit ENSPCHK 0x20 - mask STIMESEL 0x18 - bit ENSTIMER 0x04 - bit ACTNEGEN 0x02 - bit STPWEN 0x01 /* Powered Termination */ -} - -/* - * SCSI Control Signal Read Register (p. 3-15). - * Reads the actual state of the SCSI bus pins - */ -register SCSISIGI { - address 0x003 - access_mode RO - bit CDI 0x80 - bit IOI 0x40 - bit MSGI 0x20 - bit ATNI 0x10 - bit SELI 0x08 - bit BSYI 0x04 - bit REQI 0x02 - bit ACKI 0x01 -/* - * Possible phases in SCSISIGI - */ - mask PHASE_MASK CDI|IOI|MSGI - mask P_DATAOUT 0x00 - mask P_DATAIN IOI - mask P_COMMAND CDI - mask P_MESGOUT CDI|MSGI - mask P_STATUS CDI|IOI - mask P_MESGIN CDI|IOI|MSGI -} - -/* - * SCSI Control Signal Write Register (p. 3-16). - * Writing to this register modifies the control signals on the bus. Only - * those signals that are allowed in the current mode (Initiator/Target) are - * asserted. - */ -register SCSISIGO { - address 0x003 - access_mode WO - bit CDO 0x80 - bit IOO 0x40 - bit MSGO 0x20 - bit ATNO 0x10 - bit SELO 0x08 - bit BSYO 0x04 - bit REQO 0x02 - bit ACKO 0x01 -/* - * Possible phases to write into SCSISIG0 - */ - mask PHASE_MASK CDI|IOI|MSGI - mask P_DATAOUT 0x00 - mask P_DATAIN IOI - mask P_COMMAND CDI - mask P_MESGOUT CDI|MSGI - mask P_STATUS CDI|IOI - mask P_MESGIN CDI|IOI|MSGI -} - -/* - * SCSI Rate Control (p. 3-17). - * Contents of this register determine the Synchronous SCSI data transfer - * rate and the maximum synchronous Req/Ack offset. An offset of 0 in the - * SOFS (3:0) bits disables synchronous data transfers. Any offset value - * greater than 0 enables synchronous transfers. - */ -register SCSIRATE { - address 0x004 - access_mode RW - bit WIDEXFER 0x80 /* Wide transfer control */ - mask SXFR 0x70 /* Sync transfer rate */ - mask SXFR_ULTRA2 0x7f /* Sync transfer rate */ - mask SOFS 0x0f /* Sync offset */ -} - -/* - * SCSI ID (p. 3-18). - * Contains the ID of the board and the current target on the - * selected channel. - */ -register SCSIID { - address 0x005 - access_mode RW - mask TID 0xf0 /* Target ID mask */ - mask OID 0x0f /* Our ID mask */ - /* - * SCSI Maximum Offset (p. 4-61 aic7890/91 Data Book) - * The aic7890/91 allow an offset of up to 127 transfers in both wide - * and narrow mode. - */ - alias SCSIOFFSET - mask SOFS_ULTRA2 0x7f /* Sync offset U2 chips */ -} - -/* - * SCSI Latched Data (p. 3-19). - * Read/Write latches used to transfer data on the SCSI bus during - * Automatic or Manual PIO mode. SCSIDATH can be used for the - * upper byte of a 16bit wide asynchronouse data phase transfer. - */ -register SCSIDATL { - address 0x006 - access_mode RW -} - -register SCSIDATH { - address 0x007 - access_mode RW -} - -/* - * SCSI Transfer Count (pp. 3-19,20) - * These registers count down the number of bytes transferred - * across the SCSI bus. The counter is decremented only once - * the data has been safely transferred. SDONE in SSTAT0 is - * set when STCNT goes to 0 - */ -register STCNT { - address 0x008 - size 3 - access_mode RW -} - -/* - * Option Mode Register (Alternate Mode) (p. 5-198) - * This register is used to set certain options on Ultra3 based chips. - * The chip must be in alternate mode (bit ALT_MODE in SFUNCT must be set) - */ -register OPTIONMODE { - address 0x008 - access_mode RW - bit AUTORATEEN 0x80 - bit AUTOACKEN 0x40 - bit ATNMGMNTEN 0x20 - bit BUSFREEREV 0x10 - bit EXPPHASEDIS 0x08 - bit SCSIDATL_IMGEN 0x04 - bit AUTO_MSGOUT_DE 0x02 - bit DIS_MSGIN_DUALEDGE 0x01 -} - - -/* - * Clear SCSI Interrupt 0 (p. 3-20) - * Writing a 1 to a bit clears the associated SCSI Interrupt in SSTAT0. - */ -register CLRSINT0 { - address 0x00b - access_mode WO - bit CLRSELDO 0x40 - bit CLRSELDI 0x20 - bit CLRSELINGO 0x10 - bit CLRSWRAP 0x08 - bit CLRSPIORDY 0x02 -} - -/* - * SCSI Status 0 (p. 3-21) - * Contains one set of SCSI Interrupt codes - * These are most likely of interest to the sequencer - */ -register SSTAT0 { - address 0x00b - access_mode RO - bit TARGET 0x80 /* Board acting as target */ - bit SELDO 0x40 /* Selection Done */ - bit SELDI 0x20 /* Board has been selected */ - bit SELINGO 0x10 /* Selection In Progress */ - bit SWRAP 0x08 /* 24bit counter wrap */ - bit IOERR 0x08 /* LVD Tranceiver mode changed */ - bit SDONE 0x04 /* STCNT = 0x000000 */ - bit SPIORDY 0x02 /* SCSI PIO Ready */ - bit DMADONE 0x01 /* DMA transfer completed */ -} - -/* - * Clear SCSI Interrupt 1 (p. 3-23) - * Writing a 1 to a bit clears the associated SCSI Interrupt in SSTAT1. - */ -register CLRSINT1 { - address 0x00c - access_mode WO - bit CLRSELTIMEO 0x80 - bit CLRATNO 0x40 - bit CLRSCSIRSTI 0x20 - bit CLRBUSFREE 0x08 - bit CLRSCSIPERR 0x04 - bit CLRPHASECHG 0x02 - bit CLRREQINIT 0x01 -} - -/* - * SCSI Status 1 (p. 3-24) - */ -register SSTAT1 { - address 0x00c - access_mode RO - bit SELTO 0x80 - bit ATNTARG 0x40 - bit SCSIRSTI 0x20 - bit PHASEMIS 0x10 - bit BUSFREE 0x08 - bit SCSIPERR 0x04 - bit PHASECHG 0x02 - bit REQINIT 0x01 -} - -/* - * SCSI Status 2 (pp. 3-25,26) - */ -register SSTAT2 { - address 0x00d - access_mode RO - bit OVERRUN 0x80 - bit SHVALID 0x40 - bit WIDE_RES 0x20 - bit EXP_ACTIVE 0x10 /* SCSI Expander Active */ - bit CRCVALERR 0x08 /* CRC Value Error */ - bit CRCENDERR 0x04 /* CRC End Error */ - bit CRCREQERR 0x02 /* CRC REQ Error */ - bit DUAL_EDGE_ERROR 0x01 /* Invalid pins for Dual Edge phase */ - mask SFCNT 0x1f -} - -/* - * SCSI Status 3 (p. 3-26) - */ -register SSTAT3 { - address 0x00e - access_mode RO - mask SCSICNT 0xf0 - mask OFFCNT 0x0f -} - -/* - * SCSI ID for the aic7890/91 chips - */ -register SCSIID_ULTRA2 { - address 0x00f - access_mode RW - mask TID 0xf0 /* Target ID mask */ - mask OID 0x0f /* Our ID mask */ -} - -/* - * SCSI Interrupt Mode 1 (p. 3-28) - * Setting any bit will enable the corresponding function - * in SIMODE0 to interrupt via the IRQ pin. - */ -register SIMODE0 { - address 0x010 - access_mode RW - bit ENSELDO 0x40 - bit ENSELDI 0x20 - bit ENSELINGO 0x10 - bit ENSWRAP 0x08 - bit ENIOERR 0x08 /* LVD Tranceiver mode changes */ - bit ENSDONE 0x04 - bit ENSPIORDY 0x02 - bit ENDMADONE 0x01 -} - -/* - * SCSI Interrupt Mode 1 (pp. 3-28,29) - * Setting any bit will enable the corresponding function - * in SIMODE1 to interrupt via the IRQ pin. - */ -register SIMODE1 { - address 0x011 - access_mode RW - bit ENSELTIMO 0x80 - bit ENATNTARG 0x40 - bit ENSCSIRST 0x20 - bit ENPHASEMIS 0x10 - bit ENBUSFREE 0x08 - bit ENSCSIPERR 0x04 - bit ENPHASECHG 0x02 - bit ENREQINIT 0x01 -} - -/* - * SCSI Data Bus (High) (p. 3-29) - * This register reads data on the SCSI Data bus directly. - */ -register SCSIBUSL { - address 0x012 - access_mode RO -} - -register SCSIBUSH { - address 0x013 - access_mode RO -} - -/* - * SCSI/Host Address (p. 3-30) - * These registers hold the host address for the byte about to be - * transferred on the SCSI bus. They are counted up in the same - * manner as STCNT is counted down. SHADDR should always be used - * to determine the address of the last byte transferred since HADDR - * can be skewed by write ahead. - */ -register SHADDR { - address 0x014 - size 4 - access_mode RO -} - -/* - * Selection Timeout Timer (p. 3-30) - */ -register SELTIMER { - address 0x018 - access_mode RW - bit STAGE6 0x20 - bit STAGE5 0x10 - bit STAGE4 0x08 - bit STAGE3 0x04 - bit STAGE2 0x02 - bit STAGE1 0x01 -} - -/* - * Selection/Reselection ID (p. 3-31) - * Upper four bits are the device id. The ONEBIT is set when the re/selecting - * device did not set its own ID. - */ -register SELID { - address 0x019 - access_mode RW - mask SELID_MASK 0xf0 - bit ONEBIT 0x08 -} - -/* - * Serial Port I/O Cabability register (p. 4-95 aic7860 Data Book) - * Indicates if external logic has been attached to the chip to - * perform the tasks of accessing a serial eeprom, testing termination - * strength, and performing cable detection. On the aic7860, most of - * these features are handled on chip, but on the aic7855 an attached - * aic3800 does the grunt work. - */ -register SPIOCAP { - address 0x01b - access_mode RW - bit SOFT1 0x80 - bit SOFT0 0x40 - bit SOFTCMDEN 0x20 - bit HAS_BRDCTL 0x10 /* External Board control */ - bit SEEPROM 0x08 /* External serial eeprom logic */ - bit EEPROM 0x04 /* Writable external BIOS ROM */ - bit ROM 0x02 /* Logic for accessing external ROM */ - bit SSPIOCPS 0x01 /* Termination and cable detection */ -} - -/* - * SCSI Block Control (p. 3-32) - * Controls Bus type and channel selection. In a twin channel configuration - * addresses 0x00-0x1e are gated to the appropriate channel based on this - * register. SELWIDE allows for the coexistence of 8bit and 16bit devices - * on a wide bus. - */ -register SBLKCTL { - address 0x01f - access_mode RW - bit DIAGLEDEN 0x80 /* Aic78X0 only */ - bit DIAGLEDON 0x40 /* Aic78X0 only */ - bit AUTOFLUSHDIS 0x20 - bit SELBUSB 0x08 - bit ENAB40 0x08 /* LVD transceiver active */ - bit ENAB20 0x04 /* SE/HVD transceiver active */ - bit SELWIDE 0x02 - bit XCVR 0x01 /* External transceiver active */ -} - -/* - * Sequencer Control (p. 3-33) - * Error detection mode and speed configuration - */ -register SEQCTL { - address 0x060 - access_mode RW - bit PERRORDIS 0x80 - bit PAUSEDIS 0x40 - bit FAILDIS 0x20 - bit FASTMODE 0x10 - bit BRKADRINTEN 0x08 - bit STEP 0x04 - bit SEQRESET 0x02 - bit LOADRAM 0x01 -} - -/* - * Sequencer RAM Data (p. 3-34) - * Single byte window into the Scratch Ram area starting at the address - * specified by SEQADDR0 and SEQADDR1. To write a full word, simply write - * four bytes in succession. The SEQADDRs will increment after the most - * significant byte is written - */ -register SEQRAM { - address 0x061 - access_mode RW -} - -/* - * Sequencer Address Registers (p. 3-35) - * Only the first bit of SEQADDR1 holds addressing information - */ -register SEQADDR0 { - address 0x062 - access_mode RW -} - -register SEQADDR1 { - address 0x063 - access_mode RW - mask SEQADDR1_MASK 0x01 -} - -/* - * Accumulator - * We cheat by passing arguments in the Accumulator up to the kernel driver - */ -register ACCUM { - address 0x064 - access_mode RW - accumulator -} - -register SINDEX { - address 0x065 - access_mode RW - sindex -} - -register DINDEX { - address 0x066 - access_mode RW -} - -register ALLONES { - address 0x069 - access_mode RO - allones -} - -register ALLZEROS { - address 0x06a - access_mode RO - allzeros -} - -register NONE { - address 0x06a - access_mode WO - none -} - -register FLAGS { - address 0x06b - access_mode RO - bit ZERO 0x02 - bit CARRY 0x01 -} - -register SINDIR { - address 0x06c - access_mode RO -} - -register DINDIR { - address 0x06d - access_mode WO -} - -register FUNCTION1 { - address 0x06e - access_mode RW -} - -register STACK { - address 0x06f - access_mode RO -} - -/* - * Board Control (p. 3-43) - */ -register BCTL { - address 0x084 - access_mode RW - bit ACE 0x08 - bit ENABLE 0x01 -} - -register DSCOMMAND0 { - address 0x084 - access_mode RW - bit CACHETHEN 0x80 - bit DPARCKEN 0x40 - bit MPARCKEN 0x20 - bit EXTREQLCK 0x10 - bit INTSCBRAMSEL 0x08 - bit RAMPS 0x04 - bit USCBSIZE32 0x02 - bit CIOPARCKEN 0x01 -} - -/* - * On the aic78X0 chips, Board Control is replaced by the DSCommand - * register (p. 4-64) - */ -register DSCOMMAND { - address 0x084 - access_mode RW - bit CACHETHEN 0x80 /* Cache Threshold enable */ - bit DPARCKEN 0x40 /* Data Parity Check Enable */ - bit MPARCKEN 0x20 /* Memory Parity Check Enable */ - bit EXTREQLCK 0x10 /* External Request Lock */ -} - -/* - * Bus On/Off Time (p. 3-44) - */ -register BUSTIME { - address 0x085 - access_mode RW - mask BOFF 0xf0 - mask BON 0x0f -} - -/* - * Bus Speed (p. 3-45) - */ -register BUSSPD { - address 0x086 - access_mode RW - mask DFTHRSH 0xc0 - mask STBOFF 0x38 - mask STBON 0x07 - mask DFTHRSH_100 0xc0 -} - -/* - * Host Control (p. 3-47) R/W - * Overall host control of the device. - */ -register HCNTRL { - address 0x087 - access_mode RW - bit POWRDN 0x40 - bit SWINT 0x10 - bit IRQMS 0x08 - bit PAUSE 0x04 - bit INTEN 0x02 - bit CHIPRST 0x01 - bit CHIPRSTACK 0x01 -} - -/* - * Host Address (p. 3-48) - * This register contains the address of the byte about - * to be transferred across the host bus. - */ -register HADDR { - address 0x088 - size 4 - access_mode RW -} - -register HCNT { - address 0x08c - size 3 - access_mode RW -} - -/* - * SCB Pointer (p. 3-49) - * Gate one of the four SCBs into the SCBARRAY window. - */ -register SCBPTR { - address 0x090 - access_mode RW -} - -/* - * Interrupt Status (p. 3-50) - * Status for system interrupts - */ -register INTSTAT { - address 0x091 - access_mode RW - bit BRKADRINT 0x08 - bit SCSIINT 0x04 - bit CMDCMPLT 0x02 - bit SEQINT 0x01 - mask BAD_PHASE SEQINT /* unknown scsi bus phase */ - mask SEND_REJECT 0x10|SEQINT /* sending a message reject */ - mask NO_IDENT 0x20|SEQINT /* no IDENTIFY after reconnect*/ - mask NO_MATCH 0x30|SEQINT /* no cmd match for reconnect */ - mask EXTENDED_MSG 0x40|SEQINT /* Extended message received */ - mask WIDE_RESIDUE 0x50|SEQINT /* need kernel to back up */ - /* the SG array for us */ - mask REJECT_MSG 0x60|SEQINT /* Reject message received */ - mask BAD_STATUS 0x70|SEQINT /* Bad status from target */ - mask RESIDUAL 0x80|SEQINT /* Residual byte count != 0 */ - mask AWAITING_MSG 0xa0|SEQINT /* - * Kernel requested to specify - * a message to this target - * (command was null), so tell - * it that it can fill the - * message buffer. - */ - mask SEQ_SG_FIXUP 0xb0|SEQINT /* need help with fixing up - * the sg array pointer after - * a phasemis with no valid - * sg elements in the shadow - * pipeline. - */ - mask TRACEPOINT2 0xc0|SEQINT - mask MSGIN_PHASEMIS 0xd0|SEQINT /* - * Target changed phase on us - * when we were expecting - * another msgin byte. - */ - mask DATA_OVERRUN 0xe0|SEQINT /* - * Target attempted to write - * beyond the bounds of its - * command. - */ - - mask SEQINT_MASK 0xf0|SEQINT /* SEQINT Status Codes */ - mask INT_PEND (BRKADRINT|SEQINT|SCSIINT|CMDCMPLT) -} - -/* - * Hard Error (p. 3-53) - * Reporting of catastrophic errors. You usually cannot recover from - * these without a full board reset. - */ -register ERROR { - address 0x092 - access_mode RO - bit CIOPARERR 0x80 /* Ultra2 only */ - bit PCIERRSTAT 0x40 /* PCI only */ - bit MPARERR 0x20 /* PCI only */ - bit DPARERR 0x10 /* PCI only */ - bit SQPARERR 0x08 - bit ILLOPCODE 0x04 - bit ILLSADDR 0x02 - bit DSCTMOUT 0x02 /* Ultra3 only */ - bit ILLHADDR 0x01 -} - -/* - * Clear Interrupt Status (p. 3-52) - */ -register CLRINT { - address 0x092 - access_mode WO - bit CLRPARERR 0x10 /* PCI only */ - bit CLRBRKADRINT 0x08 - bit CLRSCSIINT 0x04 - bit CLRCMDINT 0x02 - bit CLRSEQINT 0x01 -} - -register DFCNTRL { - address 0x093 - access_mode RW - bit PRELOADEN 0x80 /* aic7890 only */ - bit WIDEODD 0x40 - bit SCSIEN 0x20 - bit SDMAEN 0x10 - bit SDMAENACK 0x10 - bit HDMAEN 0x08 - bit HDMAENACK 0x08 - bit DIRECTION 0x04 - bit FIFOFLUSH 0x02 - bit FIFORESET 0x01 -} - -register DFSTATUS { - address 0x094 - access_mode RO - bit PRELOAD_AVAIL 0x80 - bit DWORDEMP 0x20 - bit MREQPEND 0x10 - bit HDONE 0x08 - bit DFTHRESH 0x04 - bit FIFOFULL 0x02 - bit FIFOEMP 0x01 -} - -register DFDAT { - address 0x099 - access_mode RW -} - -/* - * SCB Auto Increment (p. 3-59) - * Byte offset into the SCB Array and an optional bit to allow auto - * incrementing of the address during download and upload operations - */ -register SCBCNT { - address 0x09a - access_mode RW - bit SCBAUTO 0x80 - mask SCBCNT_MASK 0x1f -} - -/* - * Queue In FIFO (p. 3-60) - * Input queue for queued SCBs (commands that the seqencer has yet to start) - */ -register QINFIFO { - address 0x09b - access_mode RW -} - -/* - * Queue In Count (p. 3-60) - * Number of queued SCBs - */ -register QINCNT { - address 0x09c - access_mode RO -} - -/* - * SCSIDATL IMAGE Register (p. 5-104) - * Write to this register also go to SCSIDATL but this register will preserve - * the data for later reading as long as the SCSIDATL_IMGEN bit in the - * OPTIONMODE register is set. - */ -register SCSIDATL_IMG { - address 0x09c - access_mode RW -} - -/* - * Queue Out FIFO (p. 3-61) - * Queue of SCBs that have completed and await the host - */ -register QOUTFIFO { - address 0x09d - access_mode WO -} - -/* - * CRC Control 1 Register (p. 5-105) - * Control bits for the Ultra 160/m CRC facilities - */ -register CRCCONTROL1 { - address 0x09d - access_mode RW - bit CRCONSEEN 0x80 /* CRC ON Single Edge ENable */ - bit CRCVALCHKEN 0x40 /* CRC Value Check Enable */ - bit CRCENDCHKEN 0x20 /* CRC End Check Enable */ - bit CRCREQCHKEN 0x10 - bit TARGCRCENDEN 0x08 /* Enable End CRC transfer when target */ - bit TARGCRCCNTEN 0x04 /* Enable CRC transfer when target */ -} - -/* - * Queue Out Count (p. 3-61) - * Number of queued SCBs in the Out FIFO - */ -register QOUTCNT { - address 0x09e - access_mode RO -} - -/* - * SCSI Phase Register (p. 5-106) - * Current bus phase - */ -register SCSIPHASE { - address 0x09e - access_mode RO - bit SP_STATUS 0x20 - bit SP_COMMAND 0x10 - bit SP_MSG_IN 0x08 - bit SP_MSG_OUT 0x04 - bit SP_DATA_IN 0x02 - bit SP_DATA_OUT 0x01 -} - -/* - * Special Function - */ -register SFUNCT { - address 0x09f - access_mode RW - bit ALT_MODE 0x80 -} - -/* - * SCB Definition (p. 5-4) - */ -scb { - address 0x0a0 - SCB_CONTROL { - size 1 - bit MK_MESSAGE 0x80 - bit DISCENB 0x40 - bit TAG_ENB 0x20 - bit DISCONNECTED 0x04 - mask SCB_TAG_TYPE 0x03 - } - SCB_TCL { - size 1 - bit SELBUSB 0x08 - mask TID 0xf0 - mask LID 0x07 - } - SCB_TARGET_STATUS { - size 1 - } - SCB_SGCOUNT { - size 1 - } - SCB_SGPTR { - size 4 - } - SCB_RESID_SGCNT { - size 1 - } - SCB_RESID_DCNT { - size 3 - } - SCB_DATAPTR { - size 4 - } - SCB_DATACNT { - /* - * Really only 3 bytes, but padded to make - * the kernel's job easier. - */ - size 4 - } - SCB_CMDPTR { - size 4 - } - SCB_CMDLEN { - size 1 - } - SCB_TAG { - size 1 - } - SCB_NEXT { - size 1 - } - SCB_PREV { - size 1 - } - SCB_BUSYTARGETS { - size 4 - } -} - -const SG_SIZEOF 0x08 /* sizeof(struct ahc_dma) */ - -/* --------------------- AHA-2840-only definitions -------------------- */ - -register SEECTL_2840 { - address 0x0c0 - access_mode RW - bit CS_2840 0x04 - bit CK_2840 0x02 - bit DO_2840 0x01 -} - -register STATUS_2840 { - address 0x0c1 - access_mode RW - bit EEPROM_TF 0x80 - mask BIOS_SEL 0x60 - mask ADSEL 0x1e - bit DI_2840 0x01 -} - -/* --------------------- AIC-7870-only definitions -------------------- */ - -register DSPCISTATUS { - address 0x086 - mask DFTHRSH_100 0xc0 -} - -register CCHADDR { - address 0x0E0 - size 8 -} - -register CCHCNT { - address 0x0E8 -} - -register CCSGRAM { - address 0x0E9 -} - -register CCSGADDR { - address 0x0EA -} - -register CCSGCTL { - address 0x0EB - bit CCSGDONE 0x80 - bit CCSGEN 0x08 - bit FLAG 0x02 - bit CCSGRESET 0x01 -} - -register CCSCBCNT { - address 0xEF -} - -register CCSCBCTL { - address 0x0EE - bit CCSCBDONE 0x80 - bit ARRDONE 0x40 /* SCB Array prefetch done */ - bit CCARREN 0x10 - bit CCSCBEN 0x08 - bit CCSCBDIR 0x04 - bit CCSCBRESET 0x01 -} - -register CCSCBADDR { - address 0x0ED -} - -register CCSCBRAM { - address 0xEC -} - -register CCSCBPTR { - address 0x0F1 -} - -register HNSCB_QOFF { - address 0x0F4 -} - -register HESCB_QOFF { - address 0x0F5 -} - -register SNSCB_QOFF { - address 0x0F6 -} - -register SESCB_QOFF { - address 0x0F7 -} - -register SDSCB_QOFF { - address 0x0F8 -} - -register QOFF_CTLSTA { - address 0x0FA - bit ESTABLISH_SCB_AVAIL 0x80 - bit SCB_AVAIL 0x40 - bit SNSCB_ROLLOVER 0x20 - bit SDSCB_ROLLOVER 0x10 - bit SESCB_ROLLOVER 0x08 - mask SCB_QSIZE 0x07 - mask SCB_QSIZE_256 0x06 -} - -register DFF_THRSH { - address 0x0FB - mask WR_DFTHRSH 0x70 - mask RD_DFTHRSH 0x07 - mask RD_DFTHRSH_MIN 0x00 - mask RD_DFTHRSH_25 0x01 - mask RD_DFTHRSH_50 0x02 - mask RD_DFTHRSH_63 0x03 - mask RD_DFTHRSH_75 0x04 - mask RD_DFTHRSH_85 0x05 - mask RD_DFTHRSH_90 0x06 - mask RD_DFTHRSH_MAX 0x07 - mask WR_DFTHRSH_MIN 0x00 - mask WR_DFTHRSH_25 0x10 - mask WR_DFTHRSH_50 0x20 - mask WR_DFTHRSH_63 0x30 - mask WR_DFTHRSH_75 0x40 - mask WR_DFTHRSH_85 0x50 - mask WR_DFTHRSH_90 0x60 - mask WR_DFTHRSH_MAX 0x70 -} - -register SG_CACHEPTR { - access_mode RW - address 0x0fc - mask SG_USER_DATA 0xfc - bit LAST_SEG 0x02 - bit LAST_SEG_DONE 0x01 -} - -register BRDCTL { - address 0x01d - bit BRDDAT7 0x80 - bit BRDDAT6 0x40 - bit BRDDAT5 0x20 - bit BRDSTB 0x10 - bit BRDCS 0x08 - bit BRDRW 0x04 - bit BRDCTL1 0x02 - bit BRDCTL0 0x01 - /* 7890 Definitions */ - bit BRDDAT4 0x10 - bit BRDDAT3 0x08 - bit BRDDAT2 0x04 - bit BRDRW_ULTRA2 0x02 - bit BRDSTB_ULTRA2 0x01 -} - -/* - * Serial EEPROM Control (p. 4-92 in 7870 Databook) - * Controls the reading and writing of an external serial 1-bit - * EEPROM Device. In order to access the serial EEPROM, you must - * first set the SEEMS bit that generates a request to the memory - * port for access to the serial EEPROM device. When the memory - * port is not busy servicing another request, it reconfigures - * to allow access to the serial EEPROM. When this happens, SEERDY - * gets set high to verify that the memory port access has been - * granted. - * - * After successful arbitration for the memory port, the SEECS bit of - * the SEECTL register is connected to the chip select. The SEECK, - * SEEDO, and SEEDI are connected to the clock, data out, and data in - * lines respectively. The SEERDY bit of SEECTL is useful in that it - * gives us an 800 nsec timer. After a write to the SEECTL register, - * the SEERDY goes high 800 nsec later. The one exception to this is - * when we first request access to the memory port. The SEERDY goes - * high to signify that access has been granted and, for this case, has - * no implied timing. - * - * See 93cx6.c for detailed information on the protocol necessary to - * read the serial EEPROM. - */ -register SEECTL { - address 0x01e - bit EXTARBACK 0x80 - bit EXTARBREQ 0x40 - bit SEEMS 0x20 - bit SEERDY 0x10 - bit SEECS 0x08 - bit SEECK 0x04 - bit SEEDO 0x02 - bit SEEDI 0x01 -} -/* ---------------------- Scratch RAM Offsets ------------------------- */ -/* These offsets are either to values that are initialized by the board's - * BIOS or are specified by the sequencer code. - * - * The host adapter card (at least the BIOS) uses 20-2f for SCSI - * device information, 32-33 and 5a-5f as well. As it turns out, the - * BIOS trashes 20-2f, writing the synchronous negotiation results - * on top of the BIOS values, so we re-use those for our per-target - * scratchspace (actually a value that can be copied directly into - * SCSIRATE). The kernel driver will enable synchronous negotiation - * for all targets that have a value other than 0 in the lower four - * bits of the target scratch space. This should work regardless of - * whether the bios has been installed. - */ - -scratch_ram { - address 0x020 - - /* - * 1 byte per target starting at this address for configuration values - */ - TARG_SCSIRATE { - size 16 - } - /* - * Bit vector of targets that have ULTRA enabled. - */ - ULTRA_ENB { - size 2 - } - /* - * Bit vector of targets that have disconnection disabled. - */ - DISC_DSB { - size 2 - } - /* - * Single byte buffer used to designate the type or message - * to send to a target. - */ - MSG_OUT { - size 1 - } - /* Parameters for DMA Logic */ - DMAPARAMS { - size 1 - bit PRELOADEN 0x80 - bit WIDEODD 0x40 - bit SCSIEN 0x20 - bit SDMAEN 0x10 - bit SDMAENACK 0x10 - bit HDMAEN 0x08 - bit HDMAENACK 0x08 - bit DIRECTION 0x04 - bit FIFOFLUSH 0x02 - bit FIFORESET 0x01 - } - SEQ_FLAGS { - size 1 - bit IDENTIFY_SEEN 0x80 - bit SCBPTR_VALID 0x20 - bit DPHASE 0x10 - bit AMTARGET 0x08 - bit WIDE_BUS 0x02 - bit TWIN_BUS 0x01 - } - /* - * Temporary storage for the - * target/channel/lun of a - * reconnecting target - */ - SAVED_TCL { - size 1 - } - /* Working value of the number of SG segments left */ - SG_COUNT { - size 1 - } - /* Working value of SG pointer */ - SG_NEXT { - size 4 - } - /* - * The last bus phase as seen by the sequencer. - */ - LASTPHASE { - size 1 - bit CDI 0x80 - bit IOI 0x40 - bit MSGI 0x20 - mask PHASE_MASK CDI|IOI|MSGI - mask P_DATAOUT 0x00 - mask P_DATAIN IOI - mask P_COMMAND CDI - mask P_MESGOUT CDI|MSGI - mask P_STATUS CDI|IOI - mask P_MESGIN CDI|IOI|MSGI - mask P_BUSFREE 0x01 - } - /* - * head of list of SCBs awaiting - * selection - */ - WAITING_SCBH { - size 1 - } - /* - * head of list of SCBs that are - * disconnected. Used for SCB - * paging. - */ - DISCONNECTED_SCBH { - size 1 - } - /* - * head of list of SCBs that are - * not in use. Used for SCB paging. - */ - FREE_SCBH { - size 1 - } - /* - * Address of the hardware scb array in the host. - */ - HSCB_ADDR { - size 4 - } - /* - * Address of the 256 byte array storing the SCBID of outstanding - * untagged SCBs indexed by TCL. - */ - SCBID_ADDR { - size 4 - } - /* - * Address of the array of command descriptors used to store - * information about incoming selections. - */ - TMODE_CMDADDR { - size 4 - } - KERNEL_QINPOS { - size 1 - } - QINPOS { - size 1 - } - QOUTPOS { - size 1 - } - /* - * Offset into the command descriptor array for the next - * available desciptor to use. - */ - TMODE_CMDADDR_NEXT { - size 1 - } - ARG_1 { - size 1 - mask SEND_MSG 0x80 - mask SEND_SENSE 0x40 - mask SEND_REJ 0x20 - mask MSGOUT_PHASEMIS 0x10 - alias RETURN_1 - } - ARG_2 { - size 1 - alias RETURN_2 - } - - /* - * Snapshot of MSG_OUT taken after each message is sent. - */ - LAST_MSG { - size 1 - } - - /* - * Number of times we have filled the CCSGRAM with prefetched - * SG elements. - */ - PREFETCH_CNT { - size 1 - } - - - /* - * These are reserved registers in the card's scratch ram. Some of - * the values are specified in the AHA2742 technical reference manual - * and are initialized by the BIOS at boot time. - */ - SCSICONF { - address 0x05a - size 1 - bit TERM_ENB 0x80 - bit RESET_SCSI 0x40 - mask HSCSIID 0x07 /* our SCSI ID */ - mask HWSCSIID 0x0f /* our SCSI ID if Wide Bus */ - } - HOSTCONF { - address 0x05d - size 1 - } - HA_274_BIOSCTRL { - address 0x05f - size 1 - mask BIOSMODE 0x30 - mask BIOSDISABLED 0x30 - bit CHANNEL_B_PRIMARY 0x08 - } - /* - * Per target SCSI offset values for Ultra2 controllers. - */ - TARG_OFFSET { - address 0x070 - size 16 - } -} - -const SCB_LIST_NULL 0xff - -const CCSGADDR_MAX 0x80 -const CCSGRAM_MAXSEGS 16 - -/* Offsets into the SCBID array where different data is stored */ -const UNTAGGEDSCB_OFFSET 0 -const QOUTFIFO_OFFSET 1 -const QINFIFO_OFFSET 2 - -/* WDTR Message values */ -const BUS_8_BIT 0x00 -const BUS_16_BIT 0x01 -const BUS_32_BIT 0x02 - -/* Offset maximums */ -const MAX_OFFSET_8BIT 0x0f -const MAX_OFFSET_16BIT 0x08 -const MAX_OFFSET_ULTRA2 0x7f -const HOST_MSG 0xff - -/* Target mode command processing constants */ -const CMD_GROUP_CODE_SHIFT 0x05 -const CMD_GROUP0_BYTE_DELTA -4 -const CMD_GROUP2_BYTE_DELTA -6 -const CMD_GROUP4_BYTE_DELTA 4 -const CMD_GROUP5_BYTE_DELTA 11 - -/* - * Downloaded (kernel inserted) constants - */ - -/* - * Number of command descriptors in the command descriptor array. - */ -const TMODE_NUMCMDS download diff --git a/drivers/scsi/aic7xxx_old/aic7xxx.seq b/drivers/scsi/aic7xxx_old/aic7xxx.seq deleted file mode 100644 index dc3bb81..0000000 --- a/drivers/scsi/aic7xxx_old/aic7xxx.seq +++ /dev/null @@ -1,1539 +0,0 @@ -/* - * Adaptec 274x/284x/294x device driver firmware for Linux and FreeBSD. - * - * Copyright (c) 1994-1999 Justin Gibbs. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification, immediately at the beginning of the file. - * 2. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * Where this Software is combined with software released under the terms of - * the GNU General Public License (GPL) and the terms of the GPL would require the - * combined work to also be released under the terms of the GPL, the terms - * and conditions of this License will apply in addition to those of the - * GPL with the exception of any terms or conditions of this License that - * conflict with, or are expressly prohibited by, the GPL. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR - * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $Id: aic7xxx.seq,v 1.77 1998/06/28 02:58:57 gibbs Exp $ - */ - -#include "aic7xxx.reg" -#include "scsi_message.h" - -/* - * A few words on the waiting SCB list: - * After starting the selection hardware, we check for reconnecting targets - * as well as for our selection to complete just in case the reselection wins - * bus arbitration. The problem with this is that we must keep track of the - * SCB that we've already pulled from the QINFIFO and started the selection - * on just in case the reselection wins so that we can retry the selection at - * a later time. This problem cannot be resolved by holding a single entry - * in scratch ram since a reconnecting target can request sense and this will - * create yet another SCB waiting for selection. The solution used here is to - * use byte 27 of the SCB as a pseudo-next pointer and to thread a list - * of SCBs that are awaiting selection. Since 0-0xfe are valid SCB indexes, - * SCB_LIST_NULL is 0xff which is out of range. An entry is also added to - * this list every time a request sense occurs or after completing a non-tagged - * command for which a second SCB has been queued. The sequencer will - * automatically consume the entries. - */ - -reset: - clr SCSISIGO; /* De-assert BSY */ - and SXFRCTL1, ~BITBUCKET; - /* Always allow reselection */ - mvi SCSISEQ, ENRSELI|ENAUTOATNP; - - if ((p->features & AHC_CMD_CHAN) != 0) { - /* Ensure that no DMA operations are in progress */ - clr CCSGCTL; - clr CCSCBCTL; - } - - call clear_target_state; -poll_for_work: - and SXFRCTL0, ~SPIOEN; - if ((p->features & AHC_QUEUE_REGS) == 0) { - mov A, QINPOS; - } -poll_for_work_loop: - if ((p->features & AHC_QUEUE_REGS) == 0) { - and SEQCTL, ~PAUSEDIS; - } - test SSTAT0, SELDO|SELDI jnz selection; - test SCSISEQ, ENSELO jnz poll_for_work; - if ((p->features & AHC_TWIN) != 0) { - /* - * Twin channel devices cannot handle things like SELTO - * interrupts on the "background" channel. So, if we - * are selecting, keep polling the current channel util - * either a selection or reselection occurs. - */ - xor SBLKCTL,SELBUSB; /* Toggle to the other bus */ - test SSTAT0, SELDO|SELDI jnz selection; - test SCSISEQ, ENSELO jnz poll_for_work; - xor SBLKCTL,SELBUSB; /* Toggle back */ - } - cmp WAITING_SCBH,SCB_LIST_NULL jne start_waiting; -test_queue: - /* Has the driver posted any work for us? */ - if ((p->features & AHC_QUEUE_REGS) != 0) { - test QOFF_CTLSTA, SCB_AVAIL jz poll_for_work_loop; - mov NONE, SNSCB_QOFF; - inc QINPOS; - } else { - or SEQCTL, PAUSEDIS; - cmp KERNEL_QINPOS, A je poll_for_work_loop; - inc QINPOS; - and SEQCTL, ~PAUSEDIS; - } - -/* - * We have at least one queued SCB now and we don't have any - * SCBs in the list of SCBs awaiting selection. If we have - * any SCBs available for use, pull the tag from the QINFIFO - * and get to work on it. - */ - if ((p->flags & AHC_PAGESCBS) != 0) { - mov ALLZEROS call get_free_or_disc_scb; - } - -dequeue_scb: - add A, -1, QINPOS; - mvi QINFIFO_OFFSET call fetch_byte; - - if ((p->flags & AHC_PAGESCBS) == 0) { - /* In the non-paging case, the SCBID == hardware SCB index */ - mov SCBPTR, RETURN_2; - } -dma_queued_scb: -/* - * DMA the SCB from host ram into the current SCB location. - */ - mvi DMAPARAMS, HDMAEN|DIRECTION|FIFORESET; - mov RETURN_2 call dma_scb; - -/* - * Preset the residual fields in case we never go through a data phase. - * This isn't done by the host so we can avoid a DMA to clear these - * fields for the normal case of I/O that completes without underrun - * or overrun conditions. - */ - if ((p->features & AHC_CMD_CHAN) != 0) { - bmov SCB_RESID_DCNT, SCB_DATACNT, 3; - } else { - mov SCB_RESID_DCNT[0],SCB_DATACNT[0]; - mov SCB_RESID_DCNT[1],SCB_DATACNT[1]; - mov SCB_RESID_DCNT[2],SCB_DATACNT[2]; - } - mov SCB_RESID_SGCNT, SCB_SGCOUNT; - -start_scb: - /* - * Place us on the waiting list in case our selection - * doesn't win during bus arbitration. - */ - mov SCB_NEXT,WAITING_SCBH; - mov WAITING_SCBH, SCBPTR; -start_waiting: - /* - * Pull the first entry off of the waiting SCB list. - */ - mov SCBPTR, WAITING_SCBH; - call start_selection; - jmp poll_for_work; - -start_selection: - if ((p->features & AHC_TWIN) != 0) { - and SINDEX,~SELBUSB,SBLKCTL;/* Clear channel select bit */ - and A,SELBUSB,SCB_TCL; /* Get new channel bit */ - or SINDEX,A; - mov SBLKCTL,SINDEX; /* select channel */ - } -initialize_scsiid: - if ((p->features & AHC_ULTRA2) != 0) { - and A, TID, SCB_TCL; /* Get target ID */ - and SCSIID_ULTRA2, OID; /* Clear old target */ - or SCSIID_ULTRA2, A; - } else { - and A, TID, SCB_TCL; /* Get target ID */ - and SCSIID, OID; /* Clear old target */ - or SCSIID, A; - } - mov SCSIDATL, ALLZEROS; /* clear out the latched */ - /* data register, this */ - /* fixes a bug on some */ - /* controllers where the */ - /* last byte written to */ - /* this register can leak */ - /* onto the data bus at */ - /* bad times, such as during */ - /* selection timeouts */ - mvi SCSISEQ, ENSELO|ENAUTOATNO|ENRSELI|ENAUTOATNP ret; - -/* - * Initialize Ultra mode setting and clear the SCSI channel. - * SINDEX should contain any additional bit's the client wants - * set in SXFRCTL0. - */ -initialize_channel: - or SXFRCTL0, CLRSTCNT|CLRCHN, SINDEX; - if ((p->features & AHC_ULTRA) != 0) { -ultra: - mvi SINDEX, ULTRA_ENB+1; - test SAVED_TCL, 0x80 jnz ultra_2; /* Target ID > 7 */ - dec SINDEX; -ultra_2: - mov FUNCTION1,SAVED_TCL; - mov A,FUNCTION1; - test SINDIR, A jz ndx_dtr; - or SXFRCTL0, FAST20; - } -/* - * Initialize SCSIRATE with the appropriate value for this target. - * The SCSIRATE settings for each target are stored in an array - * based at TARG_SCSIRATE. - */ -ndx_dtr: - shr A,4,SAVED_TCL; - if ((p->features & AHC_TWIN) != 0) { - test SBLKCTL,SELBUSB jz ndx_dtr_2; - or SAVED_TCL, SELBUSB; - or A,0x08; /* Channel B entries add 8 */ -ndx_dtr_2: - } - - if ((p->features & AHC_ULTRA2) != 0) { - add SINDEX, TARG_OFFSET, A; - mov SCSIOFFSET, SINDIR; - } - - add SINDEX,TARG_SCSIRATE,A; - mov SCSIRATE,SINDIR ret; - - -selection: - test SSTAT0,SELDO jnz select_out; -/* - * Reselection has been initiated by a target. Make a note that we've been - * reselected, but haven't seen an IDENTIFY message from the target yet. - */ -initiator_reselect: - mvi CLRSINT0, CLRSELDI; - /* XXX test for and handle ONE BIT condition */ - and SAVED_TCL, SELID_MASK, SELID; - mvi CLRSINT1,CLRBUSFREE; - or SIMODE1, ENBUSFREE; /* - * We aren't expecting a - * bus free, so interrupt - * the kernel driver if it - * happens. - */ - mvi SPIOEN call initialize_channel; - mvi MSG_OUT, MSG_NOOP; /* No message to send */ - jmp ITloop; - -/* - * After the selection, remove this SCB from the "waiting SCB" - * list. This is achieved by simply moving our "next" pointer into - * WAITING_SCBH. Our next pointer will be set to null the next time this - * SCB is used, so don't bother with it now. - */ -select_out: - /* Turn off the selection hardware */ - mvi SCSISEQ, ENRSELI|ENAUTOATNP; /* - * ATN on parity errors - * for "in" phases - */ - mvi CLRSINT0, CLRSELDO; - mov SCBPTR, WAITING_SCBH; - mov WAITING_SCBH,SCB_NEXT; - mov SAVED_TCL, SCB_TCL; - mvi CLRSINT1,CLRBUSFREE; - or SIMODE1, ENBUSFREE; /* - * We aren't expecting a - * bus free, so interrupt - * the kernel driver if it - * happens. - */ - mvi SPIOEN call initialize_channel; -/* - * As soon as we get a successful selection, the target should go - * into the message out phase since we have ATN asserted. - */ - mvi MSG_OUT, MSG_IDENTIFYFLAG; - or SEQ_FLAGS, IDENTIFY_SEEN; - -/* - * Main loop for information transfer phases. Wait for the target - * to assert REQ before checking MSG, C/D and I/O for the bus phase. - */ -ITloop: - call phase_lock; - - mov A, LASTPHASE; - - test A, ~P_DATAIN jz p_data; - cmp A,P_COMMAND je p_command; - cmp A,P_MESGOUT je p_mesgout; - cmp A,P_STATUS je p_status; - cmp A,P_MESGIN je p_mesgin; - - mvi INTSTAT,BAD_PHASE; /* unknown phase - signal driver */ - jmp ITloop; /* Try reading the bus again. */ - -await_busfree: - and SIMODE1, ~ENBUSFREE; - call clear_target_state; - mov NONE, SCSIDATL; /* Ack the last byte */ - and SXFRCTL0, ~SPIOEN; - test SSTAT1,REQINIT|BUSFREE jz .; - test SSTAT1, BUSFREE jnz poll_for_work; - mvi INTSTAT, BAD_PHASE; - -clear_target_state: - /* - * We assume that the kernel driver may reset us - * at any time, even in the middle of a DMA, so - * clear DFCNTRL too. - */ - clr DFCNTRL; - - /* - * We don't know the target we will connect to, - * so default to narrow transfers to avoid - * parity problems. - */ - if ((p->features & AHC_ULTRA2) != 0) { - bmov SCSIRATE, ALLZEROS, 2; - } else { - clr SCSIRATE; - and SXFRCTL0, ~(FAST20); - } - mvi LASTPHASE, P_BUSFREE; - /* clear target specific flags */ - clr SEQ_FLAGS ret; - - -data_phase_reinit: -/* - * If we re-enter the data phase after going through another phase, the - * STCNT may have been cleared, so restore it from the residual field. - * On Ultra2, we have to put it into the HCNT field because we have to - * drop the data down into the shadow layer via the preload ability. - */ - if ((p->features & AHC_ULTRA2) != 0) { - bmov HADDR, SHADDR, 4; - bmov HCNT, SCB_RESID_DCNT, 3; - } - if ((p->chip & AHC_CHIPID_MASK) == AHC_AIC7895) { - bmov STCNT, SCB_RESID_DCNT, 3; - } - if ((p->features & AHC_CMD_CHAN) == 0) { - mvi DINDEX, STCNT; - mvi SCB_RESID_DCNT call bcopy_3; - } - jmp data_phase_loop; -p_data: - if ((p->features & AHC_ULTRA2) != 0) { - mvi DMAPARAMS, PRELOADEN|SCSIEN|HDMAEN; - } else { - mvi DMAPARAMS, WIDEODD|SCSIEN|SDMAEN|HDMAEN|FIFORESET; - } - test LASTPHASE, IOI jnz . + 2; - or DMAPARAMS, DIRECTION; - call assert; /* - * Ensure entering a data - * phase is okay - seen identify, etc. - */ - if ((p->features & AHC_CMD_CHAN) != 0) { - mvi CCSGADDR, CCSGADDR_MAX; - } - - test SEQ_FLAGS, DPHASE jnz data_phase_reinit; - or SEQ_FLAGS, DPHASE; /* we've seen a data phase */ - /* - * Initialize the DMA address and counter from the SCB. - * Also set SG_COUNT and SG_NEXT in memory since we cannot - * modify the values in the SCB itself until we see a - * save data pointers message. - */ - if ((p->features & AHC_CMD_CHAN) != 0) { - bmov HADDR, SCB_DATAPTR, 7; - bmov SG_COUNT, SCB_SGCOUNT, 5; - if ((p->features & AHC_ULTRA2) == 0) { - bmov STCNT, HCNT, 3; - } - } else { - mvi DINDEX, HADDR; - mvi SCB_DATAPTR call bcopy_7; - call set_stcnt_from_hcnt; - mvi DINDEX, SG_COUNT; - mvi SCB_SGCOUNT call bcopy_5; - } -data_phase_loop: - /* Guard against overruns */ - test SG_COUNT, 0xff jnz data_phase_inbounds; -/* - * Turn on 'Bit Bucket' mode, set the transfer count to - * 16meg and let the target run until it changes phase. - * When the transfer completes, notify the host that we - * had an overrun. - */ - or SXFRCTL1,BITBUCKET; - and DMAPARAMS, ~(HDMAEN|SDMAEN); - if ((p->features & AHC_ULTRA2) != 0) { - bmov HCNT, ALLONES, 3; - } - if ((p->chip & AHC_CHIPID_MASK) == AHC_AIC7895) { - bmov STCNT, ALLONES, 3; - } - if ((p->features & AHC_CMD_CHAN) == 0) { - mvi STCNT[0], 0xFF; - mvi STCNT[1], 0xFF; - mvi STCNT[2], 0xFF; - } - -data_phase_inbounds: -/* If we are the last SG block, tell the hardware. */ - if ((p->features & AHC_ULTRA2) != 0) { - shl A, 2, SG_COUNT; - cmp SG_COUNT,0x01 jne data_phase_wideodd; - or A, LAST_SEG; - } else { - cmp SG_COUNT,0x01 jne data_phase_wideodd; - and DMAPARAMS, ~WIDEODD; - } -data_phase_wideodd: - if ((p->features & AHC_ULTRA2) != 0) { - mov SG_CACHEPTR, A; - mov DFCNTRL, DMAPARAMS; /* start the operation */ - test SXFRCTL1, BITBUCKET jnz data_phase_overrun; -u2_preload_wait: - test SSTAT1, PHASEMIS jnz u2_phasemis; - test DFSTATUS, PRELOAD_AVAIL jz u2_preload_wait; - } else { - mov DMAPARAMS call dma; -data_phase_dma_done: -/* Go tell the host about any overruns */ - test SXFRCTL1,BITBUCKET jnz data_phase_overrun; - -/* Exit if we had an underrun. dma clears SINDEX in this case. */ - test SINDEX,0xff jz data_phase_finish; - } -/* - * Advance the scatter-gather pointers - */ -sg_advance: - if ((p->features & AHC_ULTRA2) != 0) { - cmp SG_COUNT, 0x01 je u2_data_phase_finish; - } else { - dec SG_COUNT; - test SG_COUNT, 0xff jz data_phase_finish; - } - - if ((p->features & AHC_CMD_CHAN) != 0) { - - /* - * Do we have any prefetch left??? - */ - cmp CCSGADDR, CCSGADDR_MAX jne prefetch_avail; - - /* - * Fetch MIN(CCSGADDR_MAX, (SG_COUNT * 8)) bytes. - */ - add A, -(CCSGRAM_MAXSEGS + 1), SG_COUNT; - mvi A, CCSGADDR_MAX; - jc . + 2; - shl A, 3, SG_COUNT; - mov CCHCNT, A; - bmov CCHADDR, SG_NEXT, 4; - mvi CCSGCTL, CCSGEN|CCSGRESET; - test CCSGCTL, CCSGDONE jz .; - and CCSGCTL, ~CCSGEN; - test CCSGCTL, CCSGEN jnz .; - mvi CCSGCTL, CCSGRESET; -prefetch_avail: - bmov HADDR, CCSGRAM, 8; - if ((p->features & AHC_ULTRA2) == 0) { - bmov STCNT, HCNT, 3; - } else { - dec SG_COUNT; - } - } else { - mvi DINDEX, HADDR; - mvi SG_NEXT call bcopy_4; - - mvi HCNT[0],SG_SIZEOF; - clr HCNT[1]; - clr HCNT[2]; - - or DFCNTRL, HDMAEN|DIRECTION|FIFORESET; - - call dma_finish; - -/* - * Copy data from FIFO into SCB data pointer and data count. - * This assumes that the SG segments are of the form: - * struct ahc_dma_seg { - * u_int32_t addr; four bytes, little-endian order - * u_int32_t len; four bytes, little endian order - * }; - */ - mvi DINDEX, HADDR; - call dfdat_in_7; - call set_stcnt_from_hcnt; - } -/* Advance the SG pointer */ - clr A; /* add sizeof(struct scatter) */ - add SG_NEXT[0],SG_SIZEOF; - adc SG_NEXT[1],A; - - if ((p->features & AHC_ULTRA2) != 0) { - jmp data_phase_loop; - } else { - test SSTAT1, REQINIT jz .; - test SSTAT1,PHASEMIS jz data_phase_loop; - } - - -/* - * We've loaded all of our segments into the preload layer. Now, we simply - * have to wait for it to finish or for us to get a phasemis. And, since - * we'll get a phasemis if we do finish, all we really need to do is wait - * for a phasemis then check if we did actually complete all the segments. - */ - if ((p->features & AHC_ULTRA2) != 0) { -u2_data_phase_finish: - test SSTAT1, PHASEMIS jnz u2_phasemis; - test SG_CACHEPTR, LAST_SEG_DONE jz u2_data_phase_finish; - clr SG_COUNT; - test SSTAT1, REQINIT jz .; - test SSTAT1, PHASEMIS jz data_phase_loop; -u2_phasemis: - call ultra2_dmafinish; - test SG_CACHEPTR, LAST_SEG_DONE jnz data_phase_finish; - test SSTAT2, SHVALID jnz u2_fixup_residual; - mvi INTSTAT, SEQ_SG_FIXUP; - jmp data_phase_finish; -u2_fixup_residual: - shr ARG_1, 2, SG_CACHEPTR; -u2_phasemis_loop: - and A, 0x3f, SG_COUNT; - cmp ARG_1, A je data_phase_finish; -/* - * Subtract SG_SIZEOF from the SG_NEXT pointer and add 1 to the SG_COUNT - */ - clr A; - add SG_NEXT[0], -SG_SIZEOF; - adc SG_NEXT[1], 0xff; - inc SG_COUNT; - jmp u2_phasemis_loop; - } - -data_phase_finish: -/* - * After a DMA finishes, save the SG and STCNT residuals back into the SCB - * We use STCNT instead of HCNT, since it's a reflection of how many bytes - * were transferred on the SCSI (as opposed to the host) bus. - */ - if ((p->features & AHC_CMD_CHAN) != 0) { - bmov SCB_RESID_DCNT, STCNT, 3; - mov SCB_RESID_SGCNT, SG_COUNT; - if ((p->features & AHC_ULTRA2) != 0) { - or SXFRCTL0, CLRSTCNT|CLRCHN; - } - } else { - mov SCB_RESID_DCNT[0],STCNT[0]; - mov SCB_RESID_DCNT[1],STCNT[1]; - mov SCB_RESID_DCNT[2],STCNT[2]; - mov SCB_RESID_SGCNT, SG_COUNT; - } - - jmp ITloop; - -data_phase_overrun: -/* - * Turn off BITBUCKET mode and notify the host - */ - if ((p->features & AHC_ULTRA2) != 0) { -/* - * Wait for the target to quit transferring data on the SCSI bus - */ - test SSTAT1, PHASEMIS jz .; - call ultra2_dmafinish; - } - and SXFRCTL1, ~BITBUCKET; - mvi INTSTAT,DATA_OVERRUN; - jmp ITloop; - - - - -/* - * Actually turn off the DMA hardware, save our current position into the - * proper residual variables, wait for the next REQ signal, then jump to - * the ITloop. Jumping to the ITloop ensures that if we happen to get - * brought into the data phase again (or are still in it after our last - * segment) that we will properly signal an overrun to the kernel. - */ - if ((p->features & AHC_ULTRA2) != 0) { -ultra2_dmafinish: - test DFCNTRL, DIRECTION jnz ultra2_dmahalt; - and DFCNTRL, ~SCSIEN; - test DFCNTRL, SCSIEN jnz .; - if ((p->bugs & AHC_BUG_AUTOFLUSH) != 0) { - or DFCNTRL, FIFOFLUSH; - } -ultra2_dmafifoflush: - if ((p->bugs & AHC_BUG_AUTOFLUSH) != 0) { - /* - * hardware bug alert! This needless set of jumps - * works around a glitch in the silicon. When the - * PCI DMA fifo goes empty, but there is still SCSI - * data to be flushed into the PCI DMA fifo (and from - * there on into main memory), the FIFOEMP bit will - * come on between the time when the PCI DMA buffer - * went empty and the next bit of data is copied from - * the SCSI fifo into the PCI fifo. It should only - * come on when both FIFOs (meaning the entire FIFO - * chain) are empty. Since it can take up to 4 cycles - * for new data to be copied from the SCSI fifo into - * the PCI fifo, testing for FIFOEMP status for 4 - * extra times gives the needed time for any - * remaining SCSI fifo data to be put in the PCI fifo - * before we declare it *truly* empty. - */ - test DFSTATUS, FIFOEMP jz ultra2_dmafifoflush; - test DFSTATUS, FIFOEMP jz ultra2_dmafifoflush; - test DFSTATUS, FIFOEMP jz ultra2_dmafifoflush; - test DFSTATUS, FIFOEMP jz ultra2_dmafifoflush; - } - test DFSTATUS, FIFOEMP jz ultra2_dmafifoflush; - test DFSTATUS, MREQPEND jnz .; -ultra2_dmahalt: - and DFCNTRL, ~(HDMAEN|SCSIEN); - test DFCNTRL, (HDMAEN|SCSIEN) jnz .; - ret; - } - -/* - * Command phase. Set up the DMA registers and let 'er rip. - */ -p_command: - call assert; - -/* - * Load HADDR and HCNT. - */ - if ((p->features & AHC_CMD_CHAN) != 0) { - bmov HADDR, SCB_CMDPTR, 5; - bmov HCNT[1], ALLZEROS, 2; - if ((p->features & AHC_ULTRA2) == 0) { - bmov STCNT, HCNT, 3; - } - } else { - mvi DINDEX, HADDR; - mvi SCB_CMDPTR call bcopy_5; - clr HCNT[1]; - clr HCNT[2]; - call set_stcnt_from_hcnt; - } - - if ((p->features & AHC_ULTRA2) == 0) { - mvi (SCSIEN|SDMAEN|HDMAEN|DIRECTION|FIFORESET) call dma; - } else { - mvi DFCNTRL, (PRELOADEN|SCSIEN|HDMAEN|DIRECTION); - test SSTAT0, SDONE jnz .; -p_command_dma_loop: - test SSTAT0, SDONE jnz p_command_ultra2_dma_done; - test SSTAT1,PHASEMIS jz p_command_dma_loop; /* ie. underrun */ -p_command_ultra2_dma_done: - test SCSISIGI, REQI jz p_command_ultra2_shutdown; - test SSTAT1, (PHASEMIS|REQINIT) jz p_command_ultra2_dma_done; -p_command_ultra2_shutdown: - and DFCNTRL, ~(HDMAEN|SCSIEN); - test DFCNTRL, (HDMAEN|SCSIEN) jnz .; - or SXFRCTL0, CLRSTCNT|CLRCHN; - } - jmp ITloop; - -/* - * Status phase. Wait for the data byte to appear, then read it - * and store it into the SCB. - */ -p_status: - call assert; - - mov SCB_TARGET_STATUS, SCSIDATL; - jmp ITloop; - -/* - * Message out phase. If MSG_OUT is 0x80, build I full indentify message - * sequence and send it to the target. In addition, if the MK_MESSAGE bit - * is set in the SCB_CONTROL byte, interrupt the host and allow it to send - * it's own message. - * - * If MSG_OUT is == HOST_MSG, also interrupt the host and take a message. - * This is done to allow the host to send messages outside of an identify - * sequence while protecting the seqencer from testing the MK_MESSAGE bit - * on an SCB that might not be for the current nexus. (For example, a - * BDR message in response to a bad reselection would leave us pointed to - * an SCB that doesn't have anything to do with the current target). - * Otherwise, treat MSG_OUT as a 1 byte message to send (abort, abort tag, - * bus device reset). - * - * When there are no messages to send, MSG_OUT should be set to MSG_NOOP, - * in case the target decides to put us in this phase for some strange - * reason. - */ -p_mesgout_retry: - or SCSISIGO,ATNO,LASTPHASE;/* turn on ATN for the retry */ -p_mesgout: - mov SINDEX, MSG_OUT; - cmp SINDEX, MSG_IDENTIFYFLAG jne p_mesgout_from_host; -p_mesgout_identify: - if ((p->features & AHC_WIDE) != 0) { - and SINDEX,0xf,SCB_TCL; /* lun */ - } else { - and SINDEX,0x7,SCB_TCL; /* lun */ - } - and A,DISCENB,SCB_CONTROL; /* mask off disconnect privilege */ - or SINDEX,A; /* or in disconnect privilege */ - or SINDEX,MSG_IDENTIFYFLAG; -p_mesgout_mk_message: - test SCB_CONTROL,MK_MESSAGE jz p_mesgout_tag; - mov SCSIDATL, SINDEX; /* Send the last byte */ - jmp p_mesgout_from_host + 1;/* Skip HOST_MSG test */ -/* - * Send a tag message if TAG_ENB is set in the SCB control block. - * Use SCB_TAG (the position in the kernel's SCB array) as the tag value. - */ -p_mesgout_tag: - test SCB_CONTROL,TAG_ENB jz p_mesgout_onebyte; - mov SCSIDATL, SINDEX; /* Send the identify message */ - call phase_lock; - cmp LASTPHASE, P_MESGOUT jne p_mesgout_done; - and SCSIDATL,TAG_ENB|SCB_TAG_TYPE,SCB_CONTROL; - call phase_lock; - cmp LASTPHASE, P_MESGOUT jne p_mesgout_done; - mov SCB_TAG jmp p_mesgout_onebyte; -/* - * Interrupt the driver, and allow it to send a message - * if it asks. - */ -p_mesgout_from_host: - cmp SINDEX, HOST_MSG jne p_mesgout_onebyte; - mvi INTSTAT,AWAITING_MSG; - nop; - /* - * Did the host detect a phase change? - */ - cmp RETURN_1, MSGOUT_PHASEMIS je p_mesgout_done; - -p_mesgout_onebyte: - mvi CLRSINT1, CLRATNO; - mov SCSIDATL, SINDEX; - -/* - * If the next bus phase after ATN drops is a message out, it means - * that the target is requesting that the last message(s) be resent. - */ - call phase_lock; - cmp LASTPHASE, P_MESGOUT je p_mesgout_retry; - -p_mesgout_done: - mvi CLRSINT1,CLRATNO; /* Be sure to turn ATNO off */ - mov LAST_MSG, MSG_OUT; - cmp MSG_OUT, MSG_IDENTIFYFLAG jne . + 2; - and SCB_CONTROL, ~MK_MESSAGE; - mvi MSG_OUT, MSG_NOOP; /* No message left */ - jmp ITloop; - -/* - * Message in phase. Bytes are read using Automatic PIO mode. - */ -p_mesgin: - mvi ACCUM call inb_first; /* read the 1st message byte */ - - test A,MSG_IDENTIFYFLAG jnz mesgin_identify; - cmp A,MSG_DISCONNECT je mesgin_disconnect; - cmp A,MSG_SAVEDATAPOINTER je mesgin_sdptrs; - cmp ALLZEROS,A je mesgin_complete; - cmp A,MSG_RESTOREPOINTERS je mesgin_rdptrs; - cmp A,MSG_EXTENDED je mesgin_extended; - cmp A,MSG_MESSAGE_REJECT je mesgin_reject; - cmp A,MSG_NOOP je mesgin_done; - cmp A,MSG_IGN_WIDE_RESIDUE je mesgin_wide_residue; - -rej_mesgin: -/* - * We have no idea what this message in is, so we issue a message reject - * and hope for the best. In any case, rejection should be a rare - * occurrence - signal the driver when it happens. - */ - mvi INTSTAT,SEND_REJECT; /* let driver know */ - - mvi MSG_MESSAGE_REJECT call mk_mesg; - -mesgin_done: - mov NONE,SCSIDATL; /*dummy read from latch to ACK*/ - jmp ITloop; - - -mesgin_complete: -/* - * We got a "command complete" message, so put the SCB_TAG into the QOUTFIFO, - * and trigger a completion interrupt. Before doing so, check to see if there - * is a residual or the status byte is something other than STATUS_GOOD (0). - * In either of these conditions, we upload the SCB back to the host so it can - * process this information. In the case of a non zero status byte, we - * additionally interrupt the kernel driver synchronously, allowing it to - * decide if sense should be retrieved. If the kernel driver wishes to request - * sense, it will fill the kernel SCB with a request sense command and set - * RETURN_1 to SEND_SENSE. If RETURN_1 is set to SEND_SENSE we redownload - * the SCB, and process it as the next command by adding it to the waiting list. - * If the kernel driver does not wish to request sense, it need only clear - * RETURN_1, and the command is allowed to complete normally. We don't bother - * to post to the QOUTFIFO in the error cases since it would require extra - * work in the kernel driver to ensure that the entry was removed before the - * command complete code tried processing it. - */ - -/* - * First check for residuals - */ - test SCB_RESID_SGCNT,0xff jnz upload_scb; - test SCB_TARGET_STATUS,0xff jz complete; /* Good Status? */ -upload_scb: - mvi DMAPARAMS, FIFORESET; - mov SCB_TAG call dma_scb; -check_status: - test SCB_TARGET_STATUS,0xff jz complete; /* Just a residual? */ - mvi INTSTAT,BAD_STATUS; /* let driver know */ - nop; - cmp RETURN_1, SEND_SENSE jne complete; - /* This SCB becomes the next to execute as it will retrieve sense */ - mvi DMAPARAMS, HDMAEN|DIRECTION|FIFORESET; - mov SCB_TAG call dma_scb; -add_to_waiting_list: - mov SCB_NEXT,WAITING_SCBH; - mov WAITING_SCBH, SCBPTR; - /* - * Prepare our selection hardware before the busfree so we have a - * high probability of winning arbitration. - */ - call start_selection; - jmp await_busfree; - -complete: - /* If we are untagged, clear our address up in host ram */ - test SCB_CONTROL, TAG_ENB jnz complete_post; - mov A, SAVED_TCL; - mvi UNTAGGEDSCB_OFFSET call post_byte_setup; - mvi SCB_LIST_NULL call post_byte; - -complete_post: - /* Post the SCB and issue an interrupt */ - if ((p->features & AHC_QUEUE_REGS) != 0) { - mov A, SDSCB_QOFF; - } else { - mov A, QOUTPOS; - } - mvi QOUTFIFO_OFFSET call post_byte_setup; - mov SCB_TAG call post_byte; - if ((p->features & AHC_QUEUE_REGS) == 0) { - inc QOUTPOS; - } - mvi INTSTAT,CMDCMPLT; - -add_to_free_list: - call add_scb_to_free_list; - jmp await_busfree; - -/* - * Is it an extended message? Copy the message to our message buffer and - * notify the host. The host will tell us whether to reject this message, - * respond to it with the message that the host placed in our message buffer, - * or simply to do nothing. - */ -mesgin_extended: - mvi INTSTAT,EXTENDED_MSG; /* let driver know */ - jmp ITloop; - -/* - * Is it a disconnect message? Set a flag in the SCB to remind us - * and await the bus going free. - */ -mesgin_disconnect: - or SCB_CONTROL,DISCONNECTED; - call add_scb_to_disc_list; - jmp await_busfree; - -/* - * Save data pointers message: - * Copying RAM values back to SCB, for Save Data Pointers message, but - * only if we've actually been into a data phase to change them. This - * protects against bogus data in scratch ram and the residual counts - * since they are only initialized when we go into data_in or data_out. - */ -mesgin_sdptrs: - test SEQ_FLAGS, DPHASE jz mesgin_done; - /* - * The SCB SGPTR becomes the next one we'll download, - * and the SCB DATAPTR becomes the current SHADDR. - * Use the residual number since STCNT is corrupted by - * any message transfer. - */ - if ((p->features & AHC_CMD_CHAN) != 0) { - bmov SCB_SGCOUNT, SG_COUNT, 5; - bmov SCB_DATAPTR, SHADDR, 4; - bmov SCB_DATACNT, SCB_RESID_DCNT, 3; - } else { - mvi DINDEX, SCB_SGCOUNT; - mvi SG_COUNT call bcopy_5; - mvi DINDEX, SCB_DATAPTR; - mvi SHADDR call bcopy_4; - mvi SCB_RESID_DCNT call bcopy_3; - } - jmp mesgin_done; - -/* - * Restore pointers message? Data pointers are recopied from the - * SCB anytime we enter a data phase for the first time, so all - * we need to do is clear the DPHASE flag and let the data phase - * code do the rest. - */ -mesgin_rdptrs: - and SEQ_FLAGS, ~DPHASE; /* - * We'll reload them - * the next time through - * the dataphase. - */ - jmp mesgin_done; - -/* - * Identify message? For a reconnecting target, this tells us the lun - * that the reconnection is for - find the correct SCB and switch to it, - * clearing the "disconnected" bit so we don't "find" it by accident later. - */ -mesgin_identify: - - if ((p->features & AHC_WIDE) != 0) { - and A,0x0f; /* lun in lower four bits */ - } else { - and A,0x07; /* lun in lower three bits */ - } - or SAVED_TCL,A; /* SAVED_TCL should be complete now */ - - mvi ARG_2, SCB_LIST_NULL; /* SCBID of prev SCB in disc List */ - call get_untagged_SCBID; - cmp ARG_1, SCB_LIST_NULL je snoop_tag; - if ((p->flags & AHC_PAGESCBS) != 0) { - test SEQ_FLAGS, SCBPTR_VALID jz use_retrieveSCB; - } - /* - * If the SCB was found in the disconnected list (as is - * always the case in non-paging scenarios), SCBPTR is already - * set to the correct SCB. So, simply setup the SCB and get - * on with things. - */ - mov SCBPTR call rem_scb_from_disc_list; - jmp setup_SCB; -/* - * Here we "snoop" the bus looking for a SIMPLE QUEUE TAG message. - * If we get one, we use the tag returned to find the proper - * SCB. With SCB paging, this requires using search for both tagged - * and non-tagged transactions since the SCB may exist in any slot. - * If we're not using SCB paging, we can use the tag as the direct - * index to the SCB. - */ -snoop_tag: - mov NONE,SCSIDATL; /* ACK Identify MSG */ -snoop_tag_loop: - call phase_lock; - cmp LASTPHASE, P_MESGIN jne not_found; - cmp SCSIBUSL,MSG_SIMPLE_Q_TAG jne not_found; -get_tag: - mvi ARG_1 call inb_next; /* tag value */ - -use_retrieveSCB: - call retrieveSCB; -setup_SCB: - mov A, SAVED_TCL; - cmp SCB_TCL, A jne not_found_cleanup_scb; - test SCB_CONTROL,DISCONNECTED jz not_found_cleanup_scb; - and SCB_CONTROL,~DISCONNECTED; - or SEQ_FLAGS,IDENTIFY_SEEN; /* make note of IDENTIFY */ - /* See if the host wants to send a message upon reconnection */ - test SCB_CONTROL, MK_MESSAGE jz mesgin_done; - and SCB_CONTROL, ~MK_MESSAGE; - mvi HOST_MSG call mk_mesg; - jmp mesgin_done; - -not_found_cleanup_scb: - test SCB_CONTROL, DISCONNECTED jz . + 3; - call add_scb_to_disc_list; - jmp not_found; - call add_scb_to_free_list; -not_found: - mvi INTSTAT, NO_MATCH; - mvi MSG_BUS_DEV_RESET call mk_mesg; - jmp mesgin_done; - -/* - * Message reject? Let the kernel driver handle this. If we have an - * outstanding WDTR or SDTR negotiation, assume that it's a response from - * the target selecting 8bit or asynchronous transfer, otherwise just ignore - * it since we have no clue what it pertains to. - */ -mesgin_reject: - mvi INTSTAT, REJECT_MSG; - jmp mesgin_done; - -/* - * Wide Residue. We handle the simple cases, but pass of the one hard case - * to the kernel (when the residue byte happened to cause us to advance our - * sg element array, so we know have to back that advance out). - */ -mesgin_wide_residue: - mvi ARG_1 call inb_next; /* ACK the wide_residue and get */ - /* the size byte */ -/* - * In order for this to be reliable, we have to do all sorts of horrible - * magic in terms of resetting the datafifo and reloading the shadow layer - * with the correct new values (so that a subsequent save data pointers - * message will do the right thing). We let the kernel do that work. - */ - mvi INTSTAT, WIDE_RESIDUE; - jmp mesgin_done; - -/* - * [ ADD MORE MESSAGE HANDLING HERE ] - */ - -/* - * Locking the driver out, build a one-byte message passed in SINDEX - * if there is no active message already. SINDEX is returned intact. - */ -mk_mesg: - or SCSISIGO,ATNO,LASTPHASE;/* turn on ATNO */ - mov MSG_OUT,SINDEX ret; - -/* - * Functions to read data in Automatic PIO mode. - * - * According to Adaptec's documentation, an ACK is not sent on input from - * the target until SCSIDATL is read from. So we wait until SCSIDATL is - * latched (the usual way), then read the data byte directly off the bus - * using SCSIBUSL. When we have pulled the ATN line, or we just want to - * acknowledge the byte, then we do a dummy read from SCISDATL. The SCSI - * spec guarantees that the target will hold the data byte on the bus until - * we send our ACK. - * - * The assumption here is that these are called in a particular sequence, - * and that REQ is already set when inb_first is called. inb_{first,next} - * use the same calling convention as inb. - */ - -inb_next: - mov NONE,SCSIDATL; /*dummy read from latch to ACK*/ -inb_next_wait: - /* - * If there is a parity error, wait for the kernel to - * see the interrupt and prepare our message response - * before continuing. - */ - test SSTAT1, REQINIT jz inb_next_wait; - test SSTAT1, SCSIPERR jnz .; - and LASTPHASE, PHASE_MASK, SCSISIGI; - cmp LASTPHASE, P_MESGIN jne mesgin_phasemis; -inb_first: - mov DINDEX,SINDEX; - mov DINDIR,SCSIBUSL ret; /*read byte directly from bus*/ -inb_last: - mov NONE,SCSIDATL ret; /*dummy read from latch to ACK*/ - - -mesgin_phasemis: -/* - * We expected to receive another byte, but the target changed phase - */ - mvi INTSTAT, MSGIN_PHASEMIS; - jmp ITloop; - -/* - * DMA data transfer. HADDR and HCNT must be loaded first, and - * SINDEX should contain the value to load DFCNTRL with - 0x3d for - * host->scsi, or 0x39 for scsi->host. The SCSI channel is cleared - * during initialization. - */ -if ((p->features & AHC_ULTRA2) == 0) { -dma: - mov DFCNTRL,SINDEX; -dma_loop: - test SSTAT0,DMADONE jnz dma_dmadone; - test SSTAT1,PHASEMIS jz dma_loop; /* ie. underrun */ -dma_phasemis: - test SSTAT0,SDONE jnz dma_checkfifo; - mov SINDEX,ALLZEROS; /* Notify caller of phasemiss */ - -/* - * We will be "done" DMAing when the transfer count goes to zero, or - * the target changes the phase (in light of this, it makes sense that - * the DMA circuitry doesn't ACK when PHASEMIS is active). If we are - * doing a SCSI->Host transfer, the data FIFO should be flushed auto- - * magically on STCNT=0 or a phase change, so just wait for FIFO empty - * status. - */ -dma_checkfifo: - test DFCNTRL,DIRECTION jnz dma_fifoempty; -dma_fifoflush: - test DFSTATUS,FIFOEMP jz dma_fifoflush; - -dma_fifoempty: - /* Don't clobber an inprogress host data transfer */ - test DFSTATUS, MREQPEND jnz dma_fifoempty; -/* - * Now shut the DMA enables off and make sure that the DMA enables are - * actually off first lest we get an ILLSADDR. - */ -dma_dmadone: - cmp LASTPHASE, P_COMMAND je dma_await_nreq; - test SCSIRATE, 0x0f jnz dma_shutdown; -dma_await_nreq: - test SCSISIGI, REQI jz dma_shutdown; - test SSTAT1, (PHASEMIS|REQINIT) jz dma_await_nreq; -dma_shutdown: - and DFCNTRL, ~(SCSIEN|SDMAEN|HDMAEN); -dma_halt: - /* - * Some revisions of the aic7880 have a problem where, if the - * data fifo is full, but the PCI input latch is not empty, - * HDMAEN cannot be cleared. The fix used here is to attempt - * to drain the data fifo until there is space for the input - * latch to drain and HDMAEN de-asserts. - */ - if ((p->bugs & AHC_BUG_PCI_2_1_RETRY) != 0) { - mov NONE, DFDAT; - } - test DFCNTRL, (SCSIEN|SDMAEN|HDMAEN) jnz dma_halt; -} -return: - ret; - -/* - * Assert that if we've been reselected, then we've seen an IDENTIFY - * message. - */ -assert: - test SEQ_FLAGS,IDENTIFY_SEEN jnz return; /* seen IDENTIFY? */ - - mvi INTSTAT,NO_IDENT ret; /* no - tell the kernel */ - -/* - * Locate a disconnected SCB either by SAVED_TCL (ARG_1 is SCB_LIST_NULL) - * or by the SCBID ARG_1. The search begins at the SCB index passed in - * via SINDEX which is an SCB that must be on the disconnected list. If - * the SCB cannot be found, SINDEX will be SCB_LIST_NULL, otherwise, SCBPTR - * is set to the proper SCB. - */ -findSCB: - mov SCBPTR,SINDEX; /* Initialize SCBPTR */ - cmp ARG_1, SCB_LIST_NULL jne findSCB_by_SCBID; - mov A, SAVED_TCL; - mvi SCB_TCL jmp findSCB_loop; /* &SCB_TCL -> SINDEX */ -findSCB_by_SCBID: - mov A, ARG_1; /* Tag passed in ARG_1 */ - mvi SCB_TAG jmp findSCB_loop; /* &SCB_TAG -> SINDEX */ -findSCB_next: - mov ARG_2, SCBPTR; - cmp SCB_NEXT, SCB_LIST_NULL je notFound; - mov SCBPTR,SCB_NEXT; - dec SINDEX; /* Last comparison moved us too far */ -findSCB_loop: - cmp SINDIR, A jne findSCB_next; - mov SINDEX, SCBPTR ret; -notFound: - mvi SINDEX, SCB_LIST_NULL ret; - -/* - * Retrieve an SCB by SCBID first searching the disconnected list falling - * back to DMA'ing the SCB down from the host. This routine assumes that - * ARG_1 is the SCBID of interest and that SINDEX is the position in the - * disconnected list to start the search from. If SINDEX is SCB_LIST_NULL, - * we go directly to the host for the SCB. - */ -retrieveSCB: - test SEQ_FLAGS, SCBPTR_VALID jz retrieve_from_host; - mov SCBPTR call findSCB; /* Continue the search */ - cmp SINDEX, SCB_LIST_NULL je retrieve_from_host; - -/* - * This routine expects SINDEX to contain the index of the SCB to be - * removed, SCBPTR to be pointing to that SCB, and ARG_2 to be the - * SCBID of the SCB just previous to this one in the list or SCB_LIST_NULL - * if it is at the head. - */ -rem_scb_from_disc_list: -/* Remove this SCB from the disconnection list */ - cmp ARG_2, SCB_LIST_NULL je rHead; - mov DINDEX, SCB_NEXT; - mov SCBPTR, ARG_2; - mov SCB_NEXT, DINDEX; - mov SCBPTR, SINDEX ret; -rHead: - mov DISCONNECTED_SCBH,SCB_NEXT ret; - -retrieve_from_host: -/* - * We didn't find it. Pull an SCB and DMA down the one we want. - * We should never get here in the non-paging case. - */ - mov ALLZEROS call get_free_or_disc_scb; - mvi DMAPARAMS, HDMAEN|DIRECTION|FIFORESET; - /* Jump instead of call as we want to return anyway */ - mov ARG_1 jmp dma_scb; - -/* - * Determine whether a target is using tagged or non-tagged transactions - * by first looking for a matching transaction based on the TCL and if - * that fails, looking up this device in the host's untagged SCB array. - * The TCL to search for is assumed to be in SAVED_TCL. The value is - * returned in ARG_1 (SCB_LIST_NULL for tagged, SCBID for non-tagged). - * The SCBPTR_VALID bit is set in SEQ_FLAGS if we found the information - * in an SCB instead of having to go to the host. - */ -get_untagged_SCBID: - cmp DISCONNECTED_SCBH, SCB_LIST_NULL je get_SCBID_from_host; - mvi ARG_1, SCB_LIST_NULL; - mov DISCONNECTED_SCBH call findSCB; - cmp SINDEX, SCB_LIST_NULL je get_SCBID_from_host; - or SEQ_FLAGS, SCBPTR_VALID;/* Was in disconnected list */ - test SCB_CONTROL, TAG_ENB jnz . + 2; - mov ARG_1, SCB_TAG ret; - mvi ARG_1, SCB_LIST_NULL ret; - -/* - * Fetch a byte from host memory given an index of (A + (256 * SINDEX)) - * and a base address of SCBID_ADDR. The byte is returned in RETURN_2. - */ -fetch_byte: - mov ARG_2, SINDEX; - if ((p->features & AHC_CMD_CHAN) != 0) { - mvi DINDEX, CCHADDR; - mvi SCBID_ADDR call set_1byte_addr; - mvi CCHCNT, 1; - mvi CCSGCTL, CCSGEN|CCSGRESET; - test CCSGCTL, CCSGDONE jz .; - mvi CCSGCTL, CCSGRESET; - bmov RETURN_2, CCSGRAM, 1 ret; - } else { - mvi DINDEX, HADDR; - mvi SCBID_ADDR call set_1byte_addr; - mvi HCNT[0], 1; - clr HCNT[1]; - clr HCNT[2]; - mvi DFCNTRL, HDMAEN|DIRECTION|FIFORESET; - call dma_finish; - mov RETURN_2, DFDAT ret; - } - -/* - * Prepare the hardware to post a byte to host memory given an - * index of (A + (256 * SINDEX)) and a base address of SCBID_ADDR. - */ -post_byte_setup: - mov ARG_2, SINDEX; - if ((p->features & AHC_CMD_CHAN) != 0) { - mvi DINDEX, CCHADDR; - mvi SCBID_ADDR call set_1byte_addr; - mvi CCHCNT, 1; - mvi CCSCBCTL, CCSCBRESET ret; - } else { - mvi DINDEX, HADDR; - mvi SCBID_ADDR call set_1byte_addr; - mvi HCNT[0], 1; - clr HCNT[1]; - clr HCNT[2]; - mvi DFCNTRL, FIFORESET ret; - } - -post_byte: - if ((p->features & AHC_CMD_CHAN) != 0) { - bmov CCSCBRAM, SINDEX, 1; - or CCSCBCTL, CCSCBEN|CCSCBRESET; - test CCSCBCTL, CCSCBDONE jz .; - clr CCSCBCTL ret; - } else { - mov DFDAT, SINDEX; - or DFCNTRL, HDMAEN|FIFOFLUSH; - jmp dma_finish; - } - -get_SCBID_from_host: - mov A, SAVED_TCL; - mvi UNTAGGEDSCB_OFFSET call fetch_byte; - mov RETURN_1, RETURN_2 ret; - -phase_lock: - test SSTAT1, REQINIT jz phase_lock; - test SSTAT1, SCSIPERR jnz phase_lock; - and SCSISIGO, PHASE_MASK, SCSISIGI; - and LASTPHASE, PHASE_MASK, SCSISIGI ret; - -if ((p->features & AHC_CMD_CHAN) == 0) { -set_stcnt_from_hcnt: - mov STCNT[0], HCNT[0]; - mov STCNT[1], HCNT[1]; - mov STCNT[2], HCNT[2] ret; - -bcopy_7: - mov DINDIR, SINDIR; - mov DINDIR, SINDIR; -bcopy_5: - mov DINDIR, SINDIR; -bcopy_4: - mov DINDIR, SINDIR; -bcopy_3: - mov DINDIR, SINDIR; - mov DINDIR, SINDIR; - mov DINDIR, SINDIR ret; -} - -/* - * Setup addr assuming that A is an index into - * an array of 32byte objects, SINDEX contains - * the base address of that array, and DINDEX - * contains the base address of the location - * to store the indexed address. - */ -set_32byte_addr: - shr ARG_2, 3, A; - shl A, 5; -/* - * Setup addr assuming that A + (ARG_1 * 256) is an - * index into an array of 1byte objects, SINDEX contains - * the base address of that array, and DINDEX contains - * the base address of the location to store the computed - * address. - */ -set_1byte_addr: - add DINDIR, A, SINDIR; - mov A, ARG_2; - adc DINDIR, A, SINDIR; - clr A; - adc DINDIR, A, SINDIR; - adc DINDIR, A, SINDIR ret; - -/* - * Either post or fetch and SCB from host memory based on the - * DIRECTION bit in DMAPARAMS. The host SCB index is in SINDEX. - */ -dma_scb: - mov A, SINDEX; - if ((p->features & AHC_CMD_CHAN) != 0) { - mvi DINDEX, CCHADDR; - mvi HSCB_ADDR call set_32byte_addr; - mov CCSCBPTR, SCBPTR; - mvi CCHCNT, 32; - test DMAPARAMS, DIRECTION jz dma_scb_tohost; - mvi CCSCBCTL, CCARREN|CCSCBEN|CCSCBDIR|CCSCBRESET; - cmp CCSCBCTL, CCSCBDONE|ARRDONE|CCARREN|CCSCBEN|CCSCBDIR jne .; - jmp dma_scb_finish; -dma_scb_tohost: - if ((p->features & AHC_ULTRA2) == 0) { - mvi CCSCBCTL, CCSCBRESET; - bmov CCSCBRAM, SCB_CONTROL, 32; - or CCSCBCTL, CCSCBEN|CCSCBRESET; - test CCSCBCTL, CCSCBDONE jz .; - } - if ((p->features & AHC_ULTRA2) != 0) { - if ((p->bugs & AHC_BUG_SCBCHAN_UPLOAD) != 0) { - mvi CCSCBCTL, CCARREN|CCSCBRESET; - cmp CCSCBCTL, ARRDONE|CCARREN jne .; - mvi CCHCNT, 32; - mvi CCSCBCTL, CCSCBEN|CCSCBRESET; - cmp CCSCBCTL, CCSCBDONE|CCSCBEN jne .; - } else { - mvi CCSCBCTL, CCARREN|CCSCBEN|CCSCBRESET; - cmp CCSCBCTL, CCSCBDONE|ARRDONE|CCARREN|CCSCBEN jne .; - } - } -dma_scb_finish: - clr CCSCBCTL; - test CCSCBCTL, CCARREN|CCSCBEN jnz .; - ret; - } - if ((p->features & AHC_CMD_CHAN) == 0) { - mvi DINDEX, HADDR; - mvi HSCB_ADDR call set_32byte_addr; - mvi HCNT[0], 32; - clr HCNT[1]; - clr HCNT[2]; - mov DFCNTRL, DMAPARAMS; - test DMAPARAMS, DIRECTION jnz dma_scb_fromhost; - /* Fill it with the SCB data */ -copy_scb_tofifo: - mvi SINDEX, SCB_CONTROL; - add A, 32, SINDEX; -copy_scb_tofifo_loop: - mov DFDAT,SINDIR; - mov DFDAT,SINDIR; - mov DFDAT,SINDIR; - mov DFDAT,SINDIR; - mov DFDAT,SINDIR; - mov DFDAT,SINDIR; - mov DFDAT,SINDIR; - mov DFDAT,SINDIR; - cmp SINDEX, A jne copy_scb_tofifo_loop; - or DFCNTRL, HDMAEN|FIFOFLUSH; - jmp dma_finish; -dma_scb_fromhost: - mvi DINDEX, SCB_CONTROL; - if ((p->bugs & AHC_BUG_PCI_2_1_RETRY) != 0) { - /* - * Set the A to -24. It it hits 0, then we let - * our code fall through to dfdat_in_8 to complete - * the last of the copy. - * - * Also, things happen 8 bytes at a time in this - * case, so we may need to drain the fifo at most - * 3 times to keep things flowing - */ - mvi A, -24; -dma_scb_hang_fifo: - /* Wait for the first bit of data to hit the fifo */ - test DFSTATUS, FIFOEMP jnz .; -dma_scb_hang_wait: - /* OK, now they've started to transfer into the fifo, - * so wait for them to stop trying to transfer any - * more data. - */ - test DFSTATUS, MREQPEND jnz .; - /* - * OK, they started, then they stopped, now see if they - * managed to complete the job before stopping. Try - * it multiple times to give the chip a few cycles to - * set the flag if it did complete. - */ - test DFSTATUS, HDONE jnz dma_scb_hang_dma_done; - test DFSTATUS, HDONE jnz dma_scb_hang_dma_done; - test DFSTATUS, HDONE jnz dma_scb_hang_dma_done; - /* - * Too bad, the chip didn't complete the DMA, but there - * aren't any more memory requests pending, so that - * means it stopped part way through and hung. That's - * our bug, so now we drain what data there is in the - * fifo in order to get things going again. - */ -dma_scb_hang_empty_fifo: - call dfdat_in_8; - add A, 8; - add SINDEX, A, HCNT; - /* - * If there are another 8 bytes of data waiting in the - * fifo, then the carry bit will be set as a result - * of the above add command (unless A is non-negative, - * in which case the carry bit won't be set). - */ - jc dma_scb_hang_empty_fifo; - /* - * We've emptied the fifo now, but we wouldn't have got - * here if the memory transfer hadn't stopped part way - * through, so go back up to the beginning of the - * loop and start over. When it succeeds in getting - * all the data down, HDONE will be set and we'll - * jump to the code just below here. - */ - jmp dma_scb_hang_fifo; -dma_scb_hang_dma_done: - and DFCNTRL, ~HDMAEN; - test DFCNTRL, HDMAEN jnz .; - call dfdat_in_8; - add A, 8; - cmp A, 8 jne . - 2; - ret; - } else { - call dma_finish; - call dfdat_in_8; - call dfdat_in_8; - call dfdat_in_8; - } -dfdat_in_8: - mov DINDIR,DFDAT; -dfdat_in_7: - mov DINDIR,DFDAT; - mov DINDIR,DFDAT; - mov DINDIR,DFDAT; - mov DINDIR,DFDAT; - mov DINDIR,DFDAT; - mov DINDIR,DFDAT; - mov DINDIR,DFDAT ret; - } - - -/* - * Wait for DMA from host memory to data FIFO to complete, then disable - * DMA and wait for it to acknowledge that it's off. - */ -if ((p->features & AHC_CMD_CHAN) == 0) { -dma_finish: - test DFSTATUS,HDONE jz dma_finish; - /* Turn off DMA */ - and DFCNTRL, ~HDMAEN; - test DFCNTRL, HDMAEN jnz .; - ret; -} - -add_scb_to_free_list: - if ((p->flags & AHC_PAGESCBS) != 0) { - mov SCB_NEXT, FREE_SCBH; - mov FREE_SCBH, SCBPTR; - } - mvi SCB_TAG, SCB_LIST_NULL ret; - -if ((p->flags & AHC_PAGESCBS) != 0) { -get_free_or_disc_scb: - cmp FREE_SCBH, SCB_LIST_NULL jne dequeue_free_scb; - cmp DISCONNECTED_SCBH, SCB_LIST_NULL jne dequeue_disc_scb; -return_error: - mvi SINDEX, SCB_LIST_NULL ret; -dequeue_disc_scb: - mov SCBPTR, DISCONNECTED_SCBH; -dma_up_scb: - mvi DMAPARAMS, FIFORESET; - mov SCB_TAG call dma_scb; -unlink_disc_scb: - mov DISCONNECTED_SCBH, SCB_NEXT ret; -dequeue_free_scb: - mov SCBPTR, FREE_SCBH; - mov FREE_SCBH, SCB_NEXT ret; -} - -add_scb_to_disc_list: -/* - * Link this SCB into the DISCONNECTED list. This list holds the - * candidates for paging out an SCB if one is needed for a new command. - * Modifying the disconnected list is a critical(pause dissabled) section. - */ - mov SCB_NEXT, DISCONNECTED_SCBH; - mov DISCONNECTED_SCBH, SCBPTR ret; diff --git a/drivers/scsi/aic7xxx_old/aic7xxx_proc.c b/drivers/scsi/aic7xxx_old/aic7xxx_proc.c deleted file mode 100644 index 976f45c..0000000 --- a/drivers/scsi/aic7xxx_old/aic7xxx_proc.c +++ /dev/null @@ -1,270 +0,0 @@ -/*+M************************************************************************* - * Adaptec AIC7xxx device driver proc support for Linux. - * - * Copyright (c) 1995, 1996 Dean W. Gehnert - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2, or (at your option) - * any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; see the file COPYING. If not, write to - * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. - * - * ---------------------------------------------------------------- - * o Modified from the EATA-DMA /proc support. - * o Additional support for device block statistics provided by - * Matthew Jacob. - * o Correction of overflow by Heinz Mauelshagen - * o Adittional corrections by Doug Ledford - * - * Dean W. Gehnert, deang@teleport.com, 05/01/96 - * - * $Id: aic7xxx_proc.c,v 4.1 1997/06/97 08:23:42 deang Exp $ - *-M*************************************************************************/ - - -#define HDRB \ -" 0 - 4K 4 - 16K 16 - 64K 64 - 256K 256K - 1M 1M+" - - -/*+F************************************************************************* - * Function: - * aic7xxx_show_info - * - * Description: - * Return information to handle /proc support for the driver. - *-F*************************************************************************/ -int -aic7xxx_show_info(struct seq_file *m, struct Scsi_Host *HBAptr) -{ - struct aic7xxx_host *p; - struct aic_dev_data *aic_dev; - struct scsi_device *sdptr; - unsigned char i; - unsigned char tindex; - - for(p=first_aic7xxx; p && p->host != HBAptr; p=p->next) - ; - - if (!p) - { - seq_printf(m, "Can't find adapter for host number %d\n", HBAptr->host_no); - return 0; - } - - p = (struct aic7xxx_host *) HBAptr->hostdata; - - seq_printf(m, "Adaptec AIC7xxx driver version: "); - seq_printf(m, "%s/", AIC7XXX_C_VERSION); - seq_printf(m, "%s", AIC7XXX_H_VERSION); - seq_printf(m, "\n"); - seq_printf(m, "Adapter Configuration:\n"); - seq_printf(m, " SCSI Adapter: %s\n", - board_names[p->board_name_index]); - if (p->flags & AHC_TWIN) - seq_printf(m, " Twin Channel Controller "); - else - { - char *channel = ""; - char *ultra = ""; - char *wide = "Narrow "; - if (p->flags & AHC_MULTI_CHANNEL) - { - channel = " Channel A"; - if (p->flags & (AHC_CHNLB|AHC_CHNLC)) - channel = (p->flags & AHC_CHNLB) ? " Channel B" : " Channel C"; - } - if (p->features & AHC_WIDE) - wide = "Wide "; - if (p->features & AHC_ULTRA3) - { - switch(p->chip & AHC_CHIPID_MASK) - { - case AHC_AIC7892: - case AHC_AIC7899: - ultra = "Ultra-160/m LVD/SE "; - break; - default: - ultra = "Ultra-3 LVD/SE "; - break; - } - } - else if (p->features & AHC_ULTRA2) - ultra = "Ultra-2 LVD/SE "; - else if (p->features & AHC_ULTRA) - ultra = "Ultra "; - seq_printf(m, " %s%sController%s ", - ultra, wide, channel); - } - switch(p->chip & ~AHC_CHIPID_MASK) - { - case AHC_VL: - seq_printf(m, "at VLB slot %d\n", p->pci_device_fn); - break; - case AHC_EISA: - seq_printf(m, "at EISA slot %d\n", p->pci_device_fn); - break; - default: - seq_printf(m, "at PCI %d/%d/%d\n", p->pci_bus, - PCI_SLOT(p->pci_device_fn), PCI_FUNC(p->pci_device_fn)); - break; - } - if( !(p->maddr) ) - { - seq_printf(m, " Programmed I/O Base: %lx\n", p->base); - } - else - { - seq_printf(m, " PCI MMAPed I/O Base: 0x%lx\n", p->mbase); - } - if( (p->chip & (AHC_VL | AHC_EISA)) ) - { - seq_printf(m, " BIOS Memory Address: 0x%08x\n", p->bios_address); - } - seq_printf(m, " Adapter SEEPROM Config: %s\n", - (p->flags & AHC_SEEPROM_FOUND) ? "SEEPROM found and used." : - ((p->flags & AHC_USEDEFAULTS) ? "SEEPROM not found, using defaults." : - "SEEPROM not found, using leftover BIOS values.") ); - seq_printf(m, " Adaptec SCSI BIOS: %s\n", - (p->flags & AHC_BIOS_ENABLED) ? "Enabled" : "Disabled"); - seq_printf(m, " IRQ: %d\n", HBAptr->irq); - seq_printf(m, " SCBs: Active %d, Max Active %d,\n", - p->activescbs, p->max_activescbs); - seq_printf(m, " Allocated %d, HW %d, " - "Page %d\n", p->scb_data->numscbs, p->scb_data->maxhscbs, - p->scb_data->maxscbs); - if (p->flags & AHC_EXTERNAL_SRAM) - seq_printf(m, " Using External SCB SRAM\n"); - seq_printf(m, " Interrupts: %ld", p->isr_count); - if (p->chip & AHC_EISA) - { - seq_printf(m, " %s\n", - (p->pause & IRQMS) ? "(Level Sensitive)" : "(Edge Triggered)"); - } - else - { - seq_printf(m, "\n"); - } - seq_printf(m, " BIOS Control Word: 0x%04x\n", - p->bios_control); - seq_printf(m, " Adapter Control Word: 0x%04x\n", - p->adapter_control); - seq_printf(m, " Extended Translation: %sabled\n", - (p->flags & AHC_EXTEND_TRANS_A) ? "En" : "Dis"); - seq_printf(m, "Disconnect Enable Flags: 0x%04x\n", p->discenable); - if (p->features & (AHC_ULTRA | AHC_ULTRA2)) - { - seq_printf(m, " Ultra Enable Flags: 0x%04x\n", p->ultraenb); - } - seq_printf(m, "Default Tag Queue Depth: %d\n", aic7xxx_default_queue_depth); - seq_printf(m, " Tagged Queue By Device array for aic7xxx host " - "instance %d:\n", p->instance); - seq_printf(m, " {"); - for(i=0; i < (MAX_TARGETS - 1); i++) - seq_printf(m, "%d,",aic7xxx_tag_info[p->instance].tag_commands[i]); - seq_printf(m, "%d}\n",aic7xxx_tag_info[p->instance].tag_commands[i]); - - seq_printf(m, "\n"); - seq_printf(m, "Statistics:\n\n"); - list_for_each_entry(aic_dev, &p->aic_devs, list) - { - sdptr = aic_dev->SDptr; - tindex = sdptr->channel << 3 | sdptr->id; - seq_printf(m, "(scsi%d:%d:%d:%d)\n", - p->host_no, sdptr->channel, sdptr->id, sdptr->lun); - seq_printf(m, " Device using %s/%s", - (aic_dev->cur.width == MSG_EXT_WDTR_BUS_16_BIT) ? - "Wide" : "Narrow", - (aic_dev->cur.offset != 0) ? - "Sync transfers at " : "Async transfers.\n" ); - if (aic_dev->cur.offset != 0) - { - struct aic7xxx_syncrate *sync_rate; - unsigned char options = aic_dev->cur.options; - int period = aic_dev->cur.period; - int rate = (aic_dev->cur.width == - MSG_EXT_WDTR_BUS_16_BIT) ? 1 : 0; - - sync_rate = aic7xxx_find_syncrate(p, &period, 0, &options); - if (sync_rate != NULL) - { - seq_printf(m, "%s MByte/sec, offset %d\n", - sync_rate->rate[rate], - aic_dev->cur.offset ); - } - else - { - seq_printf(m, "3.3 MByte/sec, offset %d\n", - aic_dev->cur.offset ); - } - } - seq_printf(m, " Transinfo settings: "); - seq_printf(m, "current(%d/%d/%d/%d), ", - aic_dev->cur.period, - aic_dev->cur.offset, - aic_dev->cur.width, - aic_dev->cur.options); - seq_printf(m, "goal(%d/%d/%d/%d), ", - aic_dev->goal.period, - aic_dev->goal.offset, - aic_dev->goal.width, - aic_dev->goal.options); - seq_printf(m, "user(%d/%d/%d/%d)\n", - p->user[tindex].period, - p->user[tindex].offset, - p->user[tindex].width, - p->user[tindex].options); - if(sdptr->simple_tags) - { - seq_printf(m, " Tagged Command Queueing Enabled, Ordered Tags %s, Depth %d/%d\n", sdptr->ordered_tags ? "Enabled" : "Disabled", sdptr->queue_depth, aic_dev->max_q_depth); - } - if(aic_dev->barrier_total) - seq_printf(m, " Total transfers %ld:\n (%ld/%ld/%ld/%ld reads/writes/REQ_BARRIER/Ordered Tags)\n", - aic_dev->r_total+aic_dev->w_total, aic_dev->r_total, aic_dev->w_total, - aic_dev->barrier_total, aic_dev->ordered_total); - else - seq_printf(m, " Total transfers %ld:\n (%ld/%ld reads/writes)\n", - aic_dev->r_total+aic_dev->w_total, aic_dev->r_total, aic_dev->w_total); - seq_printf(m, "%s\n", HDRB); - seq_printf(m, " Reads:"); - for (i = 0; i < ARRAY_SIZE(aic_dev->r_bins); i++) - { - seq_printf(m, " %10ld", aic_dev->r_bins[i]); - } - seq_printf(m, "\n"); - seq_printf(m, " Writes:"); - for (i = 0; i < ARRAY_SIZE(aic_dev->w_bins); i++) - { - seq_printf(m, " %10ld", aic_dev->w_bins[i]); - } - seq_printf(m, "\n"); - seq_printf(m, "\n\n"); - } - return 0; -} - -/* - * Overrides for Emacs so that we follow Linus's tabbing style. - * Emacs will notice this stuff at the end of the file and automatically - * adjust the settings for this buffer only. This must remain at the end - * of the file. - * --------------------------------------------------------------------------- - * Local variables: - * c-indent-level: 2 - * c-brace-imaginary-offset: 0 - * c-brace-offset: -2 - * c-argdecl-indent: 2 - * c-label-offset: -2 - * c-continued-statement-offset: 2 - * c-continued-brace-offset: 0 - * indent-tabs-mode: nil - * tab-width: 8 - * End: - */ diff --git a/drivers/scsi/aic7xxx_old/aic7xxx_reg.h b/drivers/scsi/aic7xxx_old/aic7xxx_reg.h deleted file mode 100644 index 27f2334..0000000 --- a/drivers/scsi/aic7xxx_old/aic7xxx_reg.h +++ /dev/null @@ -1,629 +0,0 @@ -/* - * DO NOT EDIT - This file is automatically generated. - */ - -#define SCSISEQ 0x00 -#define TEMODE 0x80 -#define ENSELO 0x40 -#define ENSELI 0x20 -#define ENRSELI 0x10 -#define ENAUTOATNO 0x08 -#define ENAUTOATNI 0x04 -#define ENAUTOATNP 0x02 -#define SCSIRSTO 0x01 - -#define SXFRCTL0 0x01 -#define DFON 0x80 -#define DFPEXP 0x40 -#define FAST20 0x20 -#define CLRSTCNT 0x10 -#define SPIOEN 0x08 -#define SCAMEN 0x04 -#define CLRCHN 0x02 - -#define SXFRCTL1 0x02 -#define BITBUCKET 0x80 -#define SWRAPEN 0x40 -#define ENSPCHK 0x20 -#define STIMESEL 0x18 -#define ENSTIMER 0x04 -#define ACTNEGEN 0x02 -#define STPWEN 0x01 - -#define SCSISIGO 0x03 -#define CDO 0x80 -#define IOO 0x40 -#define MSGO 0x20 -#define ATNO 0x10 -#define SELO 0x08 -#define BSYO 0x04 -#define REQO 0x02 -#define ACKO 0x01 - -#define SCSISIGI 0x03 -#define ATNI 0x10 -#define SELI 0x08 -#define BSYI 0x04 -#define REQI 0x02 -#define ACKI 0x01 - -#define SCSIRATE 0x04 -#define WIDEXFER 0x80 -#define SXFR_ULTRA2 0x7f -#define SXFR 0x70 -#define SOFS 0x0f - -#define SCSIID 0x05 -#define SCSIOFFSET 0x05 -#define SOFS_ULTRA2 0x7f - -#define SCSIDATL 0x06 - -#define SCSIDATH 0x07 - -#define STCNT 0x08 - -#define OPTIONMODE 0x08 -#define AUTORATEEN 0x80 -#define AUTOACKEN 0x40 -#define ATNMGMNTEN 0x20 -#define BUSFREEREV 0x10 -#define EXPPHASEDIS 0x08 -#define SCSIDATL_IMGEN 0x04 -#define AUTO_MSGOUT_DE 0x02 -#define DIS_MSGIN_DUALEDGE 0x01 - -#define CLRSINT0 0x0b -#define CLRSELDO 0x40 -#define CLRSELDI 0x20 -#define CLRSELINGO 0x10 -#define CLRSWRAP 0x08 -#define CLRSPIORDY 0x02 - -#define SSTAT0 0x0b -#define TARGET 0x80 -#define SELDO 0x40 -#define SELDI 0x20 -#define SELINGO 0x10 -#define IOERR 0x08 -#define SWRAP 0x08 -#define SDONE 0x04 -#define SPIORDY 0x02 -#define DMADONE 0x01 - -#define CLRSINT1 0x0c -#define CLRSELTIMEO 0x80 -#define CLRATNO 0x40 -#define CLRSCSIRSTI 0x20 -#define CLRBUSFREE 0x08 -#define CLRSCSIPERR 0x04 -#define CLRPHASECHG 0x02 -#define CLRREQINIT 0x01 - -#define SSTAT1 0x0c -#define SELTO 0x80 -#define ATNTARG 0x40 -#define SCSIRSTI 0x20 -#define PHASEMIS 0x10 -#define BUSFREE 0x08 -#define SCSIPERR 0x04 -#define PHASECHG 0x02 -#define REQINIT 0x01 - -#define SSTAT2 0x0d -#define OVERRUN 0x80 -#define SHVALID 0x40 -#define WIDE_RES 0x20 -#define SFCNT 0x1f -#define EXP_ACTIVE 0x10 -#define CRCVALERR 0x08 -#define CRCENDERR 0x04 -#define CRCREQERR 0x02 -#define DUAL_EDGE_ERROR 0x01 - -#define SSTAT3 0x0e -#define SCSICNT 0xf0 -#define OFFCNT 0x0f - -#define SCSIID_ULTRA2 0x0f -#define OID 0x0f - -#define SIMODE0 0x10 -#define ENSELDO 0x40 -#define ENSELDI 0x20 -#define ENSELINGO 0x10 -#define ENIOERR 0x08 -#define ENSWRAP 0x08 -#define ENSDONE 0x04 -#define ENSPIORDY 0x02 -#define ENDMADONE 0x01 - -#define SIMODE1 0x11 -#define ENSELTIMO 0x80 -#define ENATNTARG 0x40 -#define ENSCSIRST 0x20 -#define ENPHASEMIS 0x10 -#define ENBUSFREE 0x08 -#define ENSCSIPERR 0x04 -#define ENPHASECHG 0x02 -#define ENREQINIT 0x01 - -#define SCSIBUSL 0x12 - -#define SCSIBUSH 0x13 - -#define SHADDR 0x14 - -#define SELTIMER 0x18 -#define STAGE6 0x20 -#define STAGE5 0x10 -#define STAGE4 0x08 -#define STAGE3 0x04 -#define STAGE2 0x02 -#define STAGE1 0x01 - -#define SELID 0x19 -#define SELID_MASK 0xf0 -#define ONEBIT 0x08 - -#define SPIOCAP 0x1b -#define SOFT1 0x80 -#define SOFT0 0x40 -#define SOFTCMDEN 0x20 -#define HAS_BRDCTL 0x10 -#define SEEPROM 0x08 -#define EEPROM 0x04 -#define ROM 0x02 -#define SSPIOCPS 0x01 - -#define BRDCTL 0x1d -#define BRDDAT7 0x80 -#define BRDDAT6 0x40 -#define BRDDAT5 0x20 -#define BRDDAT4 0x10 -#define BRDSTB 0x10 -#define BRDCS 0x08 -#define BRDDAT3 0x08 -#define BRDDAT2 0x04 -#define BRDRW 0x04 -#define BRDRW_ULTRA2 0x02 -#define BRDCTL1 0x02 -#define BRDSTB_ULTRA2 0x01 -#define BRDCTL0 0x01 - -#define SEECTL 0x1e -#define EXTARBACK 0x80 -#define EXTARBREQ 0x40 -#define SEEMS 0x20 -#define SEERDY 0x10 -#define SEECS 0x08 -#define SEECK 0x04 -#define SEEDO 0x02 -#define SEEDI 0x01 - -#define SBLKCTL 0x1f -#define DIAGLEDEN 0x80 -#define DIAGLEDON 0x40 -#define AUTOFLUSHDIS 0x20 -#define ENAB40 0x08 -#define ENAB20 0x04 -#define SELWIDE 0x02 -#define XCVR 0x01 - -#define SRAM_BASE 0x20 - -#define TARG_SCSIRATE 0x20 - -#define ULTRA_ENB 0x30 - -#define DISC_DSB 0x32 - -#define MSG_OUT 0x34 - -#define DMAPARAMS 0x35 -#define PRELOADEN 0x80 -#define WIDEODD 0x40 -#define SCSIEN 0x20 -#define SDMAENACK 0x10 -#define SDMAEN 0x10 -#define HDMAEN 0x08 -#define HDMAENACK 0x08 -#define DIRECTION 0x04 -#define FIFOFLUSH 0x02 -#define FIFORESET 0x01 - -#define SEQ_FLAGS 0x36 -#define IDENTIFY_SEEN 0x80 -#define SCBPTR_VALID 0x20 -#define DPHASE 0x10 -#define AMTARGET 0x08 -#define WIDE_BUS 0x02 -#define TWIN_BUS 0x01 - -#define SAVED_TCL 0x37 - -#define SG_COUNT 0x38 - -#define SG_NEXT 0x39 - -#define LASTPHASE 0x3d -#define P_MESGIN 0xe0 -#define PHASE_MASK 0xe0 -#define P_STATUS 0xc0 -#define P_MESGOUT 0xa0 -#define P_COMMAND 0x80 -#define CDI 0x80 -#define IOI 0x40 -#define P_DATAIN 0x40 -#define MSGI 0x20 -#define P_BUSFREE 0x01 -#define P_DATAOUT 0x00 - -#define WAITING_SCBH 0x3e - -#define DISCONNECTED_SCBH 0x3f - -#define FREE_SCBH 0x40 - -#define HSCB_ADDR 0x41 - -#define SCBID_ADDR 0x45 - -#define TMODE_CMDADDR 0x49 - -#define KERNEL_QINPOS 0x4d - -#define QINPOS 0x4e - -#define QOUTPOS 0x4f - -#define TMODE_CMDADDR_NEXT 0x50 - -#define ARG_1 0x51 -#define RETURN_1 0x51 -#define SEND_MSG 0x80 -#define SEND_SENSE 0x40 -#define SEND_REJ 0x20 -#define MSGOUT_PHASEMIS 0x10 - -#define ARG_2 0x52 -#define RETURN_2 0x52 - -#define LAST_MSG 0x53 - -#define PREFETCH_CNT 0x54 - -#define SCSICONF 0x5a -#define TERM_ENB 0x80 -#define RESET_SCSI 0x40 -#define HWSCSIID 0x0f -#define HSCSIID 0x07 - -#define HOSTCONF 0x5d - -#define HA_274_BIOSCTRL 0x5f -#define BIOSMODE 0x30 -#define BIOSDISABLED 0x30 -#define CHANNEL_B_PRIMARY 0x08 - -#define SEQCTL 0x60 -#define PERRORDIS 0x80 -#define PAUSEDIS 0x40 -#define FAILDIS 0x20 -#define FASTMODE 0x10 -#define BRKADRINTEN 0x08 -#define STEP 0x04 -#define SEQRESET 0x02 -#define LOADRAM 0x01 - -#define SEQRAM 0x61 - -#define SEQADDR0 0x62 - -#define SEQADDR1 0x63 -#define SEQADDR1_MASK 0x01 - -#define ACCUM 0x64 - -#define SINDEX 0x65 - -#define DINDEX 0x66 - -#define ALLONES 0x69 - -#define ALLZEROS 0x6a - -#define NONE 0x6a - -#define FLAGS 0x6b -#define ZERO 0x02 -#define CARRY 0x01 - -#define SINDIR 0x6c - -#define DINDIR 0x6d - -#define FUNCTION1 0x6e - -#define STACK 0x6f - -#define TARG_OFFSET 0x70 - -#define BCTL 0x84 -#define ACE 0x08 -#define ENABLE 0x01 - -#define DSCOMMAND0 0x84 -#define INTSCBRAMSEL 0x08 -#define RAMPS 0x04 -#define USCBSIZE32 0x02 -#define CIOPARCKEN 0x01 - -#define DSCOMMAND 0x84 -#define CACHETHEN 0x80 -#define DPARCKEN 0x40 -#define MPARCKEN 0x20 -#define EXTREQLCK 0x10 - -#define BUSTIME 0x85 -#define BOFF 0xf0 -#define BON 0x0f - -#define BUSSPD 0x86 -#define DFTHRSH 0xc0 -#define STBOFF 0x38 -#define STBON 0x07 - -#define DSPCISTATUS 0x86 -#define DFTHRSH_100 0xc0 - -#define HCNTRL 0x87 -#define POWRDN 0x40 -#define SWINT 0x10 -#define IRQMS 0x08 -#define PAUSE 0x04 -#define INTEN 0x02 -#define CHIPRST 0x01 -#define CHIPRSTACK 0x01 - -#define HADDR 0x88 - -#define HCNT 0x8c - -#define SCBPTR 0x90 - -#define INTSTAT 0x91 -#define SEQINT_MASK 0xf1 -#define DATA_OVERRUN 0xe1 -#define MSGIN_PHASEMIS 0xd1 -#define TRACEPOINT2 0xc1 -#define SEQ_SG_FIXUP 0xb1 -#define AWAITING_MSG 0xa1 -#define RESIDUAL 0x81 -#define BAD_STATUS 0x71 -#define REJECT_MSG 0x61 -#define WIDE_RESIDUE 0x51 -#define EXTENDED_MSG 0x41 -#define NO_MATCH 0x31 -#define NO_IDENT 0x21 -#define SEND_REJECT 0x11 -#define INT_PEND 0x0f -#define BRKADRINT 0x08 -#define SCSIINT 0x04 -#define CMDCMPLT 0x02 -#define BAD_PHASE 0x01 -#define SEQINT 0x01 - -#define CLRINT 0x92 -#define CLRPARERR 0x10 -#define CLRBRKADRINT 0x08 -#define CLRSCSIINT 0x04 -#define CLRCMDINT 0x02 -#define CLRSEQINT 0x01 - -#define ERROR 0x92 -#define CIOPARERR 0x80 -#define PCIERRSTAT 0x40 -#define MPARERR 0x20 -#define DPARERR 0x10 -#define SQPARERR 0x08 -#define ILLOPCODE 0x04 -#define DSCTMOUT 0x02 -#define ILLSADDR 0x02 -#define ILLHADDR 0x01 - -#define DFCNTRL 0x93 - -#define DFSTATUS 0x94 -#define PRELOAD_AVAIL 0x80 -#define DWORDEMP 0x20 -#define MREQPEND 0x10 -#define HDONE 0x08 -#define DFTHRESH 0x04 -#define FIFOFULL 0x02 -#define FIFOEMP 0x01 - -#define DFDAT 0x99 - -#define SCBCNT 0x9a -#define SCBAUTO 0x80 -#define SCBCNT_MASK 0x1f - -#define QINFIFO 0x9b - -#define QINCNT 0x9c - -#define SCSIDATL_IMG 0x9c - -#define QOUTFIFO 0x9d - -#define CRCCONTROL1 0x9d -#define CRCONSEEN 0x80 -#define CRCVALCHKEN 0x40 -#define CRCENDCHKEN 0x20 -#define CRCREQCHKEN 0x10 -#define TARGCRCENDEN 0x08 -#define TARGCRCCNTEN 0x04 - -#define SCSIPHASE 0x9e -#define SP_STATUS 0x20 -#define SP_COMMAND 0x10 -#define SP_MSG_IN 0x08 -#define SP_MSG_OUT 0x04 -#define SP_DATA_IN 0x02 -#define SP_DATA_OUT 0x01 - -#define QOUTCNT 0x9e - -#define SFUNCT 0x9f -#define ALT_MODE 0x80 - -#define SCB_CONTROL 0xa0 -#define MK_MESSAGE 0x80 -#define DISCENB 0x40 -#define TAG_ENB 0x20 -#define DISCONNECTED 0x04 -#define SCB_TAG_TYPE 0x03 - -#define SCB_BASE 0xa0 - -#define SCB_TCL 0xa1 -#define TID 0xf0 -#define SELBUSB 0x08 -#define LID 0x07 - -#define SCB_TARGET_STATUS 0xa2 - -#define SCB_SGCOUNT 0xa3 - -#define SCB_SGPTR 0xa4 - -#define SCB_RESID_SGCNT 0xa8 - -#define SCB_RESID_DCNT 0xa9 - -#define SCB_DATAPTR 0xac - -#define SCB_DATACNT 0xb0 - -#define SCB_CMDPTR 0xb4 - -#define SCB_CMDLEN 0xb8 - -#define SCB_TAG 0xb9 - -#define SCB_NEXT 0xba - -#define SCB_PREV 0xbb - -#define SCB_BUSYTARGETS 0xbc - -#define SEECTL_2840 0xc0 -#define CS_2840 0x04 -#define CK_2840 0x02 -#define DO_2840 0x01 - -#define STATUS_2840 0xc1 -#define EEPROM_TF 0x80 -#define BIOS_SEL 0x60 -#define ADSEL 0x1e -#define DI_2840 0x01 - -#define CCHADDR 0xe0 - -#define CCHCNT 0xe8 - -#define CCSGRAM 0xe9 - -#define CCSGADDR 0xea - -#define CCSGCTL 0xeb -#define CCSGDONE 0x80 -#define CCSGEN 0x08 -#define FLAG 0x02 -#define CCSGRESET 0x01 - -#define CCSCBRAM 0xec - -#define CCSCBADDR 0xed - -#define CCSCBCTL 0xee -#define CCSCBDONE 0x80 -#define ARRDONE 0x40 -#define CCARREN 0x10 -#define CCSCBEN 0x08 -#define CCSCBDIR 0x04 -#define CCSCBRESET 0x01 - -#define CCSCBCNT 0xef - -#define CCSCBPTR 0xf1 - -#define HNSCB_QOFF 0xf4 - -#define HESCB_QOFF 0xf5 - -#define SNSCB_QOFF 0xf6 - -#define SESCB_QOFF 0xf7 - -#define SDSCB_QOFF 0xf8 - -#define QOFF_CTLSTA 0xfa -#define ESTABLISH_SCB_AVAIL 0x80 -#define SCB_AVAIL 0x40 -#define SNSCB_ROLLOVER 0x20 -#define SDSCB_ROLLOVER 0x10 -#define SESCB_ROLLOVER 0x08 -#define SCB_QSIZE 0x07 -#define SCB_QSIZE_256 0x06 - -#define DFF_THRSH 0xfb -#define WR_DFTHRSH 0x70 -#define WR_DFTHRSH_MAX 0x70 -#define WR_DFTHRSH_90 0x60 -#define WR_DFTHRSH_85 0x50 -#define WR_DFTHRSH_75 0x40 -#define WR_DFTHRSH_63 0x30 -#define WR_DFTHRSH_50 0x20 -#define WR_DFTHRSH_25 0x10 -#define RD_DFTHRSH_MAX 0x07 -#define RD_DFTHRSH 0x07 -#define RD_DFTHRSH_90 0x06 -#define RD_DFTHRSH_85 0x05 -#define RD_DFTHRSH_75 0x04 -#define RD_DFTHRSH_63 0x03 -#define RD_DFTHRSH_50 0x02 -#define RD_DFTHRSH_25 0x01 -#define WR_DFTHRSH_MIN 0x00 -#define RD_DFTHRSH_MIN 0x00 - -#define SG_CACHEPTR 0xfc -#define SG_USER_DATA 0xfc -#define LAST_SEG 0x02 -#define LAST_SEG_DONE 0x01 - - -#define CMD_GROUP2_BYTE_DELTA 0xfa -#define MAX_OFFSET_8BIT 0x0f -#define BUS_16_BIT 0x01 -#define QINFIFO_OFFSET 0x02 -#define CMD_GROUP5_BYTE_DELTA 0x0b -#define CMD_GROUP_CODE_SHIFT 0x05 -#define MAX_OFFSET_ULTRA2 0x7f -#define MAX_OFFSET_16BIT 0x08 -#define BUS_8_BIT 0x00 -#define QOUTFIFO_OFFSET 0x01 -#define UNTAGGEDSCB_OFFSET 0x00 -#define CCSGRAM_MAXSEGS 0x10 -#define SCB_LIST_NULL 0xff -#define SG_SIZEOF 0x08 -#define CMD_GROUP4_BYTE_DELTA 0x04 -#define CMD_GROUP0_BYTE_DELTA 0xfc -#define HOST_MSG 0xff -#define BUS_32_BIT 0x02 -#define CCSGADDR_MAX 0x80 - - -/* Downloaded Constant Definitions */ -#define TMODE_NUMCMDS 0x00 diff --git a/drivers/scsi/aic7xxx_old/aic7xxx_seq.c b/drivers/scsi/aic7xxx_old/aic7xxx_seq.c deleted file mode 100644 index e1bc140..0000000 --- a/drivers/scsi/aic7xxx_old/aic7xxx_seq.c +++ /dev/null @@ -1,817 +0,0 @@ -/* - * DO NOT EDIT - This file is automatically generated. - */ -static unsigned char seqprog[] = { - 0xff, 0x6a, 0x06, 0x08, - 0x7f, 0x02, 0x04, 0x08, - 0x12, 0x6a, 0x00, 0x00, - 0xff, 0x6a, 0xd6, 0x09, - 0xff, 0x6a, 0xdc, 0x09, - 0x00, 0x65, 0xca, 0x58, - 0xf7, 0x01, 0x02, 0x08, - 0xff, 0x4e, 0xc8, 0x08, - 0xbf, 0x60, 0xc0, 0x08, - 0x60, 0x0b, 0x86, 0x68, - 0x40, 0x00, 0x0c, 0x68, - 0x08, 0x1f, 0x3e, 0x10, - 0x60, 0x0b, 0x86, 0x68, - 0x40, 0x00, 0x0c, 0x68, - 0x08, 0x1f, 0x3e, 0x10, - 0xff, 0x3e, 0x48, 0x60, - 0x40, 0xfa, 0x10, 0x78, - 0xff, 0xf6, 0xd4, 0x08, - 0x01, 0x4e, 0x9c, 0x18, - 0x40, 0x60, 0xc0, 0x00, - 0x00, 0x4d, 0x10, 0x70, - 0x01, 0x4e, 0x9c, 0x18, - 0xbf, 0x60, 0xc0, 0x08, - 0x00, 0x6a, 0x86, 0x5c, - 0xff, 0x4e, 0xc8, 0x18, - 0x02, 0x6a, 0x70, 0x5b, - 0xff, 0x52, 0x20, 0x09, - 0x0d, 0x6a, 0x6a, 0x00, - 0x00, 0x52, 0xe6, 0x5b, - 0x03, 0xb0, 0x52, 0x31, - 0xff, 0xb0, 0x52, 0x09, - 0xff, 0xb1, 0x54, 0x09, - 0xff, 0xb2, 0x56, 0x09, - 0xff, 0xa3, 0x50, 0x09, - 0xff, 0x3e, 0x74, 0x09, - 0xff, 0x90, 0x7c, 0x08, - 0xff, 0x3e, 0x20, 0x09, - 0x00, 0x65, 0x4e, 0x58, - 0x00, 0x65, 0x0c, 0x40, - 0xf7, 0x1f, 0xca, 0x08, - 0x08, 0xa1, 0xc8, 0x08, - 0x00, 0x65, 0xca, 0x00, - 0xff, 0x65, 0x3e, 0x08, - 0xf0, 0xa1, 0xc8, 0x08, - 0x0f, 0x0f, 0x1e, 0x08, - 0x00, 0x0f, 0x1e, 0x00, - 0xf0, 0xa1, 0xc8, 0x08, - 0x0f, 0x05, 0x0a, 0x08, - 0x00, 0x05, 0x0a, 0x00, - 0xff, 0x6a, 0x0c, 0x08, - 0x5a, 0x6a, 0x00, 0x04, - 0x12, 0x65, 0x02, 0x00, - 0x31, 0x6a, 0xca, 0x00, - 0x80, 0x37, 0x6e, 0x68, - 0xff, 0x65, 0xca, 0x18, - 0xff, 0x37, 0xdc, 0x08, - 0xff, 0x6e, 0xc8, 0x08, - 0x00, 0x6c, 0x76, 0x78, - 0x20, 0x01, 0x02, 0x00, - 0x4c, 0x37, 0xc8, 0x28, - 0x08, 0x1f, 0x7e, 0x78, - 0x08, 0x37, 0x6e, 0x00, - 0x08, 0x64, 0xc8, 0x00, - 0x70, 0x64, 0xca, 0x18, - 0xff, 0x6c, 0x0a, 0x08, - 0x20, 0x64, 0xca, 0x18, - 0xff, 0x6c, 0x08, 0x0c, - 0x40, 0x0b, 0x96, 0x68, - 0x20, 0x6a, 0x16, 0x00, - 0xf0, 0x19, 0x6e, 0x08, - 0x08, 0x6a, 0x18, 0x00, - 0x08, 0x11, 0x22, 0x00, - 0x08, 0x6a, 0x66, 0x58, - 0x08, 0x6a, 0x68, 0x00, - 0x00, 0x65, 0xaa, 0x40, - 0x12, 0x6a, 0x00, 0x00, - 0x40, 0x6a, 0x16, 0x00, - 0xff, 0x3e, 0x20, 0x09, - 0xff, 0xba, 0x7c, 0x08, - 0xff, 0xa1, 0x6e, 0x08, - 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0x20, 0xa0, 0xd8, 0x31, - 0x09, 0xee, 0xdc, 0x01, - 0x80, 0xee, 0xfe, 0x7b, - 0x11, 0x6a, 0xdc, 0x01, - 0x50, 0xee, 0x02, 0x64, - 0x20, 0x6a, 0xd0, 0x01, - 0x09, 0x6a, 0xdc, 0x01, - 0x88, 0xee, 0x08, 0x64, - 0x19, 0x6a, 0xdc, 0x01, - 0xd8, 0xee, 0x0c, 0x64, - 0xff, 0x6a, 0xdc, 0x09, - 0x18, 0xee, 0x10, 0x6c, - 0xff, 0x6a, 0xd4, 0x0c, - 0x88, 0x6a, 0xcc, 0x00, - 0x41, 0x6a, 0xd6, 0x5b, - 0x20, 0x6a, 0x18, 0x01, - 0xff, 0x6a, 0x1a, 0x09, - 0xff, 0x6a, 0x1c, 0x09, - 0xff, 0x35, 0x26, 0x09, - 0x04, 0x35, 0x3c, 0x6c, - 0xa0, 0x6a, 0xca, 0x00, - 0x20, 0x65, 0xc8, 0x18, - 0xff, 0x6c, 0x32, 0x09, - 0xff, 0x6c, 0x32, 0x09, - 0xff, 0x6c, 0x32, 0x09, - 0xff, 0x6c, 0x32, 0x09, - 0xff, 0x6c, 0x32, 0x09, - 0xff, 0x6c, 0x32, 0x09, - 0xff, 0x6c, 0x32, 0x09, - 0xff, 0x6c, 0x32, 0x09, - 0x00, 0x65, 0x26, 0x64, - 0x0a, 0x93, 0x26, 0x01, - 0x00, 0x65, 0x78, 0x44, - 0xa0, 0x6a, 0xcc, 0x00, - 0xe8, 0x6a, 0xc8, 0x00, - 0x01, 0x94, 0x40, 0x6c, - 0x10, 0x94, 0x42, 0x6c, - 0x08, 0x94, 0x54, 0x6c, - 0x08, 0x94, 0x54, 0x6c, - 0x08, 0x94, 0x54, 0x6c, - 0x00, 0x65, 0x68, 0x5c, - 0x08, 0x64, 0xc8, 0x18, - 0x00, 0x8c, 0xca, 0x18, - 0x00, 0x65, 0x4a, 0x4c, - 0x00, 0x65, 0x40, 0x44, - 0xf7, 0x93, 0x26, 0x09, - 0x08, 0x93, 0x56, 0x6c, - 0x00, 0x65, 0x68, 0x5c, - 0x08, 0x64, 0xc8, 0x18, - 0x08, 0x64, 0x58, 0x64, - 0xff, 0x6a, 0xd4, 0x0c, - 0x00, 0x65, 0x78, 0x5c, - 0x00, 0x65, 0x68, 0x5c, - 0x00, 0x65, 0x68, 0x5c, - 0x00, 0x65, 0x68, 0x5c, - 0xff, 0x99, 0xda, 0x08, - 0xff, 0x99, 0xda, 0x08, - 0xff, 0x99, 0xda, 0x08, - 0xff, 0x99, 0xda, 0x08, - 0xff, 0x99, 0xda, 0x08, - 0xff, 0x99, 0xda, 0x08, - 0xff, 0x99, 0xda, 0x08, - 0xff, 0x99, 0xda, 0x0c, - 0x08, 0x94, 0x78, 0x7c, - 0xf7, 0x93, 0x26, 0x09, - 0x08, 0x93, 0x7c, 0x6c, - 0xff, 0x6a, 0xd4, 0x0c, - 0xff, 0x40, 0x74, 0x09, - 0xff, 0x90, 0x80, 0x08, - 0xff, 0x6a, 0x72, 0x05, - 0xff, 0x40, 0x94, 0x64, - 0xff, 0x3f, 0x8c, 0x64, - 0xff, 0x6a, 0xca, 0x04, - 0xff, 0x3f, 0x20, 0x09, - 0x01, 0x6a, 0x6a, 0x00, - 0x00, 0xb9, 0xe6, 0x5b, - 0xff, 0xba, 0x7e, 0x0c, - 0xff, 0x40, 0x20, 0x09, - 0xff, 0xba, 0x80, 0x0c, - 0xff, 0x3f, 0x74, 0x09, - 0xff, 0x90, 0x7e, 0x0c, -}; - -static int aic7xxx_patch15_func(struct aic7xxx_host *p); - -static int -aic7xxx_patch15_func(struct aic7xxx_host *p) -{ - return ((p->bugs & AHC_BUG_SCBCHAN_UPLOAD) != 0); -} - -static int aic7xxx_patch14_func(struct aic7xxx_host *p); - -static int -aic7xxx_patch14_func(struct aic7xxx_host *p) -{ - return ((p->bugs & AHC_BUG_PCI_2_1_RETRY) != 0); -} - -static int aic7xxx_patch13_func(struct aic7xxx_host *p); - -static int -aic7xxx_patch13_func(struct aic7xxx_host *p) -{ - return ((p->features & AHC_WIDE) != 0); -} - -static int aic7xxx_patch12_func(struct aic7xxx_host *p); - -static int -aic7xxx_patch12_func(struct aic7xxx_host *p) -{ - return ((p->bugs & AHC_BUG_AUTOFLUSH) != 0); -} - -static int aic7xxx_patch11_func(struct aic7xxx_host *p); - -static int -aic7xxx_patch11_func(struct aic7xxx_host *p) -{ - return ((p->features & AHC_ULTRA2) == 0); -} - -static int aic7xxx_patch10_func(struct aic7xxx_host *p); - -static int -aic7xxx_patch10_func(struct aic7xxx_host *p) -{ - return ((p->features & AHC_CMD_CHAN) == 0); -} - -static int aic7xxx_patch9_func(struct aic7xxx_host *p); - -static int -aic7xxx_patch9_func(struct aic7xxx_host *p) -{ - return ((p->chip & AHC_CHIPID_MASK) == AHC_AIC7895); -} - -static int aic7xxx_patch8_func(struct aic7xxx_host *p); - -static int -aic7xxx_patch8_func(struct aic7xxx_host *p) -{ - return ((p->features & AHC_ULTRA) != 0); -} - -static int aic7xxx_patch7_func(struct aic7xxx_host *p); - -static int -aic7xxx_patch7_func(struct aic7xxx_host *p) -{ - return ((p->features & AHC_ULTRA2) != 0); -} - -static int aic7xxx_patch6_func(struct aic7xxx_host *p); - -static int -aic7xxx_patch6_func(struct aic7xxx_host *p) -{ - return ((p->flags & AHC_PAGESCBS) == 0); -} - -static int aic7xxx_patch5_func(struct aic7xxx_host *p); - -static int -aic7xxx_patch5_func(struct aic7xxx_host *p) -{ - return ((p->flags & AHC_PAGESCBS) != 0); -} - -static int aic7xxx_patch4_func(struct aic7xxx_host *p); - -static int -aic7xxx_patch4_func(struct aic7xxx_host *p) -{ - return ((p->features & AHC_QUEUE_REGS) != 0); -} - -static int aic7xxx_patch3_func(struct aic7xxx_host *p); - -static int -aic7xxx_patch3_func(struct aic7xxx_host *p) -{ - return ((p->features & AHC_TWIN) != 0); -} - -static int aic7xxx_patch2_func(struct aic7xxx_host *p); - -static int -aic7xxx_patch2_func(struct aic7xxx_host *p) -{ - return ((p->features & AHC_QUEUE_REGS) == 0); -} - -static int aic7xxx_patch1_func(struct aic7xxx_host *p); - -static int -aic7xxx_patch1_func(struct aic7xxx_host *p) -{ - return ((p->features & AHC_CMD_CHAN) != 0); -} - -static int aic7xxx_patch0_func(struct aic7xxx_host *p); - -static int -aic7xxx_patch0_func(struct aic7xxx_host *p) -{ - return (0); -} - -struct sequencer_patch { - int (*patch_func)(struct aic7xxx_host *); - unsigned int begin :10, - skip_instr :10, - skip_patch :12; -} sequencer_patches[] = { - { aic7xxx_patch1_func, 3, 2, 1 }, - { aic7xxx_patch2_func, 7, 1, 1 }, - { aic7xxx_patch2_func, 8, 1, 1 }, - { aic7xxx_patch3_func, 11, 4, 1 }, - { aic7xxx_patch4_func, 16, 3, 2 }, - { aic7xxx_patch0_func, 19, 4, 1 }, - { aic7xxx_patch5_func, 23, 1, 1 }, - { aic7xxx_patch6_func, 26, 1, 1 }, - { aic7xxx_patch1_func, 29, 1, 2 }, - { aic7xxx_patch0_func, 30, 3, 1 }, - { aic7xxx_patch3_func, 39, 4, 1 }, - { aic7xxx_patch7_func, 43, 3, 2 }, - { aic7xxx_patch0_func, 46, 3, 1 }, - { aic7xxx_patch8_func, 52, 7, 1 }, - { aic7xxx_patch3_func, 60, 3, 1 }, - { aic7xxx_patch7_func, 63, 2, 1 }, - { aic7xxx_patch7_func, 102, 1, 2 }, - { aic7xxx_patch0_func, 103, 2, 1 }, - { aic7xxx_patch7_func, 107, 2, 1 }, - { aic7xxx_patch9_func, 109, 1, 1 }, - { aic7xxx_patch10_func, 110, 2, 1 }, - { aic7xxx_patch7_func, 113, 1, 2 }, - { aic7xxx_patch0_func, 114, 1, 1 }, - { aic7xxx_patch1_func, 118, 1, 1 }, - { aic7xxx_patch1_func, 121, 3, 3 }, - { aic7xxx_patch11_func, 123, 1, 1 }, - { aic7xxx_patch0_func, 124, 5, 1 }, - { aic7xxx_patch7_func, 132, 1, 1 }, - { aic7xxx_patch9_func, 133, 1, 1 }, - { aic7xxx_patch10_func, 134, 3, 1 }, - { aic7xxx_patch7_func, 137, 3, 2 }, - { aic7xxx_patch0_func, 140, 2, 1 }, - { aic7xxx_patch7_func, 142, 5, 2 }, - { aic7xxx_patch0_func, 147, 3, 1 }, - { aic7xxx_patch7_func, 150, 1, 2 }, - { aic7xxx_patch0_func, 151, 2, 1 }, - { aic7xxx_patch1_func, 153, 15, 4 }, - { aic7xxx_patch11_func, 166, 1, 2 }, - { aic7xxx_patch0_func, 167, 1, 1 }, - { aic7xxx_patch0_func, 168, 10, 1 }, - { aic7xxx_patch7_func, 181, 1, 2 }, - { aic7xxx_patch0_func, 182, 2, 1 }, - { aic7xxx_patch7_func, 184, 18, 1 }, - { aic7xxx_patch1_func, 202, 3, 3 }, - { aic7xxx_patch7_func, 204, 1, 1 }, - { aic7xxx_patch0_func, 205, 4, 1 }, - { aic7xxx_patch7_func, 210, 2, 1 }, - { aic7xxx_patch7_func, 215, 13, 3 }, - { aic7xxx_patch12_func, 218, 1, 1 }, - { aic7xxx_patch12_func, 219, 4, 1 }, - { aic7xxx_patch1_func, 229, 3, 3 }, - { aic7xxx_patch11_func, 231, 1, 1 }, - { aic7xxx_patch0_func, 232, 5, 1 }, - { aic7xxx_patch11_func, 237, 1, 2 }, - { aic7xxx_patch0_func, 238, 9, 1 }, - { aic7xxx_patch13_func, 254, 1, 2 }, - { aic7xxx_patch0_func, 255, 1, 1 }, - { aic7xxx_patch4_func, 316, 1, 2 }, - { aic7xxx_patch0_func, 317, 1, 1 }, - { aic7xxx_patch2_func, 320, 1, 1 }, - { aic7xxx_patch1_func, 330, 3, 2 }, - { aic7xxx_patch0_func, 333, 5, 1 }, - { aic7xxx_patch13_func, 341, 1, 2 }, - { aic7xxx_patch0_func, 342, 1, 1 }, - { aic7xxx_patch5_func, 347, 1, 1 }, - { aic7xxx_patch11_func, 389, 15, 2 }, - { aic7xxx_patch14_func, 402, 1, 1 }, - { aic7xxx_patch1_func, 441, 7, 2 }, - { aic7xxx_patch0_func, 448, 8, 1 }, - { aic7xxx_patch1_func, 457, 4, 2 }, - { aic7xxx_patch0_func, 461, 6, 1 }, - { aic7xxx_patch1_func, 467, 4, 2 }, - { aic7xxx_patch0_func, 471, 3, 1 }, - { aic7xxx_patch10_func, 481, 10, 1 }, - { aic7xxx_patch1_func, 500, 22, 5 }, - { aic7xxx_patch11_func, 508, 4, 1 }, - { aic7xxx_patch7_func, 512, 7, 3 }, - { aic7xxx_patch15_func, 512, 5, 2 }, - { aic7xxx_patch0_func, 517, 2, 1 }, - { aic7xxx_patch10_func, 522, 50, 3 }, - { aic7xxx_patch14_func, 543, 17, 2 }, - { aic7xxx_patch0_func, 560, 4, 1 }, - { aic7xxx_patch10_func, 572, 4, 1 }, - { aic7xxx_patch5_func, 576, 2, 1 }, - { aic7xxx_patch5_func, 579, 9, 1 }, - -}; diff --git a/drivers/scsi/aic7xxx_old/scsi_message.h b/drivers/scsi/aic7xxx_old/scsi_message.h deleted file mode 100644 index a79f89c..0000000 --- a/drivers/scsi/aic7xxx_old/scsi_message.h +++ /dev/null @@ -1,49 +0,0 @@ -/* Messages (1 byte) */ /* I/T (M)andatory or (O)ptional */ -#define MSG_CMDCOMPLETE 0x00 /* M/M */ -#define MSG_EXTENDED 0x01 /* O/O */ -#define MSG_SAVEDATAPOINTER 0x02 /* O/O */ -#define MSG_RESTOREPOINTERS 0x03 /* O/O */ -#define MSG_DISCONNECT 0x04 /* O/O */ -#define MSG_INITIATOR_DET_ERR 0x05 /* M/M */ -#define MSG_ABORT 0x06 /* O/M */ -#define MSG_MESSAGE_REJECT 0x07 /* M/M */ -#define MSG_NOOP 0x08 /* M/M */ -#define MSG_PARITY_ERROR 0x09 /* M/M */ -#define MSG_LINK_CMD_COMPLETE 0x0a /* O/O */ -#define MSG_LINK_CMD_COMPLETEF 0x0b /* O/O */ -#define MSG_BUS_DEV_RESET 0x0c /* O/M */ -#define MSG_ABORT_TAG 0x0d /* O/O */ -#define MSG_CLEAR_QUEUE 0x0e /* O/O */ -#define MSG_INIT_RECOVERY 0x0f /* O/O */ -#define MSG_REL_RECOVERY 0x10 /* O/O */ -#define MSG_TERM_IO_PROC 0x11 /* O/O */ - -/* Messages (2 byte) */ -#define MSG_SIMPLE_Q_TAG 0x20 /* O/O */ -#define MSG_HEAD_OF_Q_TAG 0x21 /* O/O */ -#define MSG_ORDERED_Q_TAG 0x22 /* O/O */ -#define MSG_IGN_WIDE_RESIDUE 0x23 /* O/O */ - -/* Identify message */ /* M/M */ -#define MSG_IDENTIFYFLAG 0x80 -#define MSG_IDENTIFY_DISCFLAG 0x40 -#define MSG_IDENTIFY(lun, disc) (((disc) ? 0xc0 : MSG_IDENTIFYFLAG) | (lun)) -#define MSG_ISIDENTIFY(m) ((m) & MSG_IDENTIFYFLAG) - -/* Extended messages (opcode and length) */ -#define MSG_EXT_SDTR 0x01 -#define MSG_EXT_SDTR_LEN 0x03 - -#define MSG_EXT_WDTR 0x03 -#define MSG_EXT_WDTR_LEN 0x02 -#define MSG_EXT_WDTR_BUS_8_BIT 0x00 -#define MSG_EXT_WDTR_BUS_16_BIT 0x01 -#define MSG_EXT_WDTR_BUS_32_BIT 0x02 - -#define MSG_EXT_PPR 0x04 -#define MSG_EXT_PPR_LEN 0x06 -#define MSG_EXT_PPR_OPTION_ST 0x00 -#define MSG_EXT_PPR_OPTION_DT_CRC 0x02 -#define MSG_EXT_PPR_OPTION_DT_UNITS 0x03 -#define MSG_EXT_PPR_OPTION_DT_CRC_QUICK 0x04 -#define MSG_EXT_PPR_OPTION_DT_UNITS_QUICK 0x05 diff --git a/drivers/scsi/aic7xxx_old/sequencer.h b/drivers/scsi/aic7xxx_old/sequencer.h deleted file mode 100644 index ee66855..0000000 --- a/drivers/scsi/aic7xxx_old/sequencer.h +++ /dev/null @@ -1,135 +0,0 @@ -/* - * Instruction formats for the sequencer program downloaded to - * Aic7xxx SCSI host adapters - * - * Copyright (c) 1997, 1998 Justin T. Gibbs. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification, immediately at the beginning of the file. - * 2. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * Where this Software is combined with software released under the terms of - * the GNU General Public License ("GPL") and the terms of the GPL would require the - * combined work to also be released under the terms of the GPL, the terms - * and conditions of this License will apply in addition to those of the - * GPL with the exception of any terms or conditions of this License that - * conflict with, or are expressly prohibited by, the GPL. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR - * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $Id: sequencer.h,v 1.3 1997/09/27 19:37:31 gibbs Exp $ - */ - -#ifdef __LITTLE_ENDIAN_BITFIELD -struct ins_format1 { - unsigned int - immediate : 8, - source : 9, - destination : 9, - ret : 1, - opcode : 4, - parity : 1; -}; - -struct ins_format2 { - unsigned int - shift_control : 8, - source : 9, - destination : 9, - ret : 1, - opcode : 4, - parity : 1; -}; - -struct ins_format3 { - unsigned int - immediate : 8, - source : 9, - address : 10, - opcode : 4, - parity : 1; -}; -#elif defined(__BIG_ENDIAN_BITFIELD) -struct ins_format1 { - unsigned int - parity : 1, - opcode : 4, - ret : 1, - destination : 9, - source : 9, - immediate : 8; -}; - -struct ins_format2 { - unsigned int - parity : 1, - opcode : 4, - ret : 1, - destination : 9, - source : 9, - shift_control : 8; -}; - -struct ins_format3 { - unsigned int - parity : 1, - opcode : 4, - address : 10, - source : 9, - immediate : 8; -}; -#endif - -union ins_formats { - struct ins_format1 format1; - struct ins_format2 format2; - struct ins_format3 format3; - unsigned char bytes[4]; - unsigned int integer; -}; -struct instruction { - union ins_formats format; - unsigned int srcline; - struct symbol *patch_label; - struct { - struct instruction *stqe_next; - } links; -}; - -#define AIC_OP_OR 0x0 -#define AIC_OP_AND 0x1 -#define AIC_OP_XOR 0x2 -#define AIC_OP_ADD 0x3 -#define AIC_OP_ADC 0x4 -#define AIC_OP_ROL 0x5 -#define AIC_OP_BMOV 0x6 - -#define AIC_OP_JMP 0x8 -#define AIC_OP_JC 0x9 -#define AIC_OP_JNC 0xa -#define AIC_OP_CALL 0xb -#define AIC_OP_JNE 0xc -#define AIC_OP_JNZ 0xd -#define AIC_OP_JE 0xe -#define AIC_OP_JZ 0xf - -/* Pseudo Ops */ -#define AIC_OP_SHL 0x10 -#define AIC_OP_SHR 0x20 -#define AIC_OP_ROR 0x30 |
