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* Update PCI drivers to no longer look at the MEMIO-enabled bit in the PCIscottl2013-08-121-15/+1
| | | | | | | | | | | | | | | | | command register. The lazy BAR allocation code in FreeBSD sometimes disables this bit when it detects a range conflict, and will re-enable it on demand when a driver allocates the BAR. Thus, the bit is no longer a reliable indication of capability, and should not be checked. This results in the elimination of a lot of code from drivers, and also gives the opportunity to simplify a lot of drivers to use a helper API to set the busmaster enable bit. This changes fixes some recent reports of disk controllers and their associated drives/enclosures disappearing during boot. Submitted by: jhb Reviewed by: jfv, marius, achadd, achim MFC after: 1 day
* MFprojects/camlock r248982:mav2013-04-141-1/+1
| | | | | | | | Stop abusing xpt_periph in random plases that really have no periph related to CCB, for example, bus scanning. NULL value is fine in such cases and it is correctly logged in debug messages as "noperiph". If at some point we need some real XPT periphs (alike to pmpX now), quite likely they will be per-bus, and not a single global instance as xpt_periph now.
* Reform the busdma API so that new types may be added without modifyingkib2013-02-122-16/+11
| | | | | | | | | | | | | | | | | | | | | every architecture's busdma_machdep.c. It is done by unifying the bus_dmamap_load_buffer() routines so that they may be called from MI code. The MD busdma is then given a chance to do any final processing in the complete() callback. The cam changes unify the bus_dmamap_load* handling in cam drivers. The arm and mips implementations are updated to track virtual addresses for sync(). Previously this was done in a type specific way. Now it is done in a generic way by recording the list of virtuals in the map. Submitted by: jeff (sponsored by EMC/Isilon) Reviewed by: kan (previous version), scottl, mjacob (isp(4), no objections for target mode changes) Discussed with: ian (arm changes) Tested by: marius (sparc64), mips (jmallet), isci(4) on x86 (jharris), amd64 (Fabian Keil <freebsd-listen@fabiankeil.de>)
* Remove bogus break statements.kevlo2012-09-181-1/+0
| | | | Obtained from: DragonFly
* Convert a number of drivers to obtaining their parent DMA tag from theirscottl2012-03-121-1/+1
| | | | PCI device attachment.
* Add descriptor sense support to CAM, and honor sense residuals properly inken2011-10-031-3/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | CAM. Desriptor sense is a new sense data format that originated in SPC-3. Among other things, it allows for an 8-byte info field, which is necessary to pass back block numbers larger than 4 bytes. This change adds a number of new functions to scsi_all.c (and therefore libcam) that abstract out most access to sense data. This includes a bump of CAM_VERSION, because the CCB ABI has changed. Userland programs that use the CAM pass(4) driver will need to be recompiled. camcontrol.c: Change uses of scsi_extract_sense() to use scsi_extract_sense_len(). Use scsi_get_sks() instead of accessing sense key specific data directly. scsi_modes: Update the control mode page to the latest version (SPC-4). scsi_cmds.c, scsi_target.c: Change references to struct scsi_sense_data to struct scsi_sense_data_fixed. This should be changed to allow the user to specify fixed or descriptor sense, and then use scsi_set_sense_data() to build the sense data. ps3cdrom.c: Use scsi_set_sense_data() instead of setting sense data manually. cam_periph.c: Use scsi_extract_sense_len() instead of using scsi_extract_sense() or accessing sense data directly. cam_ccb.h: Bump the CAM_VERSION from 0x15 to 0x16. The change of struct scsi_sense_data from 32 to 252 bytes changes the size of struct ccb_scsiio, but not the size of union ccb. So the version must be bumped to prevent structure mis-matches. scsi_all.h: Lots of updated SCSI sense data and other structures. Add function prototypes for the new sense data functions. Take out the inline implementation of scsi_extract_sense(). It is now too large to put in a header file. Add macros to calculate whether fields are present and filled in fixed and descriptor sense data scsi_all.c: In scsi_op_desc(), allow the user to pass in NULL inquiry data, and we'll assume a direct access device in that case. Changed the SCSI RESERVED sense key name and description to COMPLETED, as it is now defined in the spec. Change the error recovery action for a number of read errors to prevent lots of retries when the drive has said that the block isn't accessible. This speeds up reconstruction of the block by any RAID software running on top of the drive (e.g. ZFS). In scsi_sense_desc(), allow for invalid sense key numbers. This allows calling this routine without checking the input values first. Change scsi_error_action() to use scsi_extract_sense_len(), and handle things when invalid asc/ascq values are encountered. Add a new routine, scsi_desc_iterate(), that will call the supplied function for every descriptor in descriptor format sense data. Add scsi_set_sense_data(), and scsi_set_sense_data_va(), which build descriptor and fixed format sense data. They currently default to fixed format sense data. Add a number of scsi_get_*() functions, which get different types of sense data fields from either fixed or descriptor format sense data, if the data is present. Add a number of scsi_*_sbuf() functions, which print formatted versions of various sense data fields. These functions work for either fixed or descriptor sense. Add a number of scsi_sense_*_sbuf() functions, which have a standard calling interface and print the indicated field. These functions take descriptors only. Add scsi_sense_desc_sbuf(), which will print a formatted version of the given sense descriptor. Pull out a majority of the scsi_sense_sbuf() function and put it into scsi_sense_only_sbuf(). This allows callers that don't use struct ccb_scsiio to easily utilize the printing routines. Revamp that function to handle descriptor sense and use the new sense fetching and printing routines. Move scsi_extract_sense() into scsi_all.c, and implement it in terms of the new function, scsi_extract_sense_len(). The _len() version takes a length (which should be the sense length - residual) and can indicate which fields are present and valid in the sense data. Add a couple of new scsi_get_*() routines to get the sense key, asc, and ascq only. mly.c: Rename struct scsi_sense_data to struct scsi_sense_data_fixed. sbp_targ.c: Use the new sense fetching routines to get sense data instead of accessing it directly. sbp.c: Change the firewire/SCSI sense data transformation code to use struct scsi_sense_data_fixed instead of struct scsi_sense_data. This should be changed later to use scsi_set_sense_data(). ciss.c: Calculate the sense residual properly. Use scsi_get_sense_key() to fetch the sense key. mps_sas.c, mpt_cam.c: Set the sense residual properly. iir.c: Use scsi_set_sense_data() instead of building sense data by hand. iscsi_subr.c: Use scsi_extract_sense_len() instead of grabbing sense data directly. umass.c: Use scsi_set_sense_data() to build sense data. Grab the sense key using scsi_get_sense_key(). Calculate the sense residual properly. isp_freebsd.h: Use scsi_get_*() routines to grab asc, ascq, and sense key values. Calculate and set the sense residual. MFC after: 3 days Sponsored by: Spectra Logic Corporation
* MFp4: Large set of CAM inprovements.mav2010-01-281-17/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Unify bus reset/probe sequence. Whenever bus attached at boot or later, CAM will automatically reset and scan it. It allows to remove duplicate code from many drivers. - Any bus, attached before CAM completed it's boot-time initialization, will equally join to the process, delaying boot if needed. - New kern.cam.boot_delay loader tunable should help controllers that are still unable to register their buses in time (such as slow USB/ PCCard/ CardBus devices), by adding one more event to wait on boot. - To allow synchronization between different CAM levels, concept of requests priorities was extended. Priorities now split between several "run levels". Device can be freezed at specified level, allowing higher priority requests to pass. For example, no payload requests allowed, until PMP driver enable port. ATA XPT negotiate transfer parameters, periph driver configure caching and so on. - Frozen requests are no more counted by request allocation scheduler. It fixes deadlocks, when frozen low priority payload requests occupying slots, required by higher levels to manage theit execution. - Two last changes were holding proper ATA reinitialization and error recovery implementation. Now it is done: SATA controllers and Port Multipliers now implement automatic hot-plug and should correctly recover from timeouts and bus resets. - Improve SCSI error recovery for devices on buses without automatic sense reporting, such as ATAPI or USB. For example, it allows CAM to wait, while CD drive loads disk, instead of immediately return error status. - Decapitalize diagnostic messages and make them more readable and sensible. - Teach PMP driver to limit maximum speed on fan-out ports. - Make boot wait for PMP scan completes, and make rescan more reliable. - Fix pass driver, to return CCB to user level in case of error. - Increase number of retries in cd driver, as device may return several UAs.
* Spell "Hz" correctly wherever it is user-visible.gavin2010-01-121-1/+1
| | | | | | | PR: bin/142566 Submitted by: N.J. Mann njm njm.me.uk Approved by: ed (mentor) MFC after: 2 weeks
* Put mly_timeout() under MLY_DEBUG, so that newer GCC versions don'ttrasz2010-01-081-1/+3
| | | | | | complain about unused static function. Reviewed by: scottl
* Convert mlx(4) and mly(4) to si_drv1 instead of dev2unit().ed2009-04-181-5/+3
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* Replace all calls to minor() with dev2unit().ed2008-09-271-2/+2
| | | | | | | | | | | | | | | After I removed all the unit2minor()/minor2unit() calls from the kernel yesterday, I realised calling minor() everywhere is quite confusing. Character devices now only have the ability to store a unit number, not a minor number. Remove the confusion by using dev2unit() everywhere. This commit could also be considered as a bug fix. A lot of drivers call minor(), while they should actually be calling dev2unit(). In -CURRENT this isn't a problem, but it turns out we never had any problem reports related to that issue in the past. I suspect not many people connect more than 256 pieces of the same hardware. Reviewed by: kib
* Prepare for future integration between CAM and newbus. xpt_bus_registerscottl2007-06-171-2/+2
| | | | | | | now takes a device_t to be the parent of the bus that is being created. Most SIMs have been updated with a reasonable argument, but a few exceptions just pass NULL for now. This argument isn't used yet and the newbus integration likely won't be ready until after 7.0-RELEASE.
* Remove Giant from CAM. Drivers (SIMs) now register a mutex that CAM willscottl2007-04-151-0/+2
| | | | | | | | | | | use to synchornize and protect all data objects that are used for that SIM. Drivers that are not yet MPSAFE register Giant and operate as usual. RIght now, no drivers are MPSAFE, though a few will be changed in the coming week as this work settles down. The driver API has changed, so all CAM drivers will need to be recompiled. The userland API has not changed, so tools like camcontrol do not need to be recompiled.
* o break newbus api: add a new argument of type driver_filter_t topiso2007-02-231-1/+1
| | | | | | | | | | | | | bus_setup_intr() o add an int return code to all fast handlers o retire INTR_FAST/IH_FAST For more info: http://docs.freebsd.org/cgi/getmsg.cgi?fetch=465712+0+current/freebsd-current Reviewed by: many Approved by: re@
* Add MODULE_DEPENDS for cam, pci, mca, eisa and isa where needed.mjacob2006-12-111-0/+2
| | | | | PR: 106543 MFC after: 3 days
* 2nd and final commit that moves us to CAM_NEW_TRAN_CODEmjacob2006-11-021-54/+0
| | | | | | as the default. Reviewed by multitudes.
* The first of 3 major steps to move the CAM layer forward to usingmjacob2006-10-311-1/+66
| | | | | | | | | | | | | | | | | | | | | the CAM_NEW_TRAN_CODE that has been in the tree for some years now. This first step consists solely of adding to or correcting CAM_NEW_TRAN_CODE pieces in the kernel source tree such that a both a GENERIC (at least on i386) and a LINT build with CAM_NEW_TRAN_CODE as an option will compile correctly and run (at least with some the h/w I have). After a short settle time, the other pieces (making CAM_NEW_TRAN_CODE the default and updating libcam and camcontrol) will be brought in. This will be an incompatible change in that the size of structures related to XPT_PATH_INQ and XPT_{GET,SET}_TRAN_SETTINGS change in both size and content. However, basic system operation and basic system utilities work well enough with this change. Reviewed by: freebsd-scsi and specific stakeholders
* Retire the last of the FreeBSD 4.x compat code from the mly driver.scottl2005-08-082-15/+1
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* Remove bus_{mem,p}io.h and related code for a micro-optimization on i386nyan2005-05-291-1/+0
| | | | | | and amd64. The optimization is a trivial on recent machines. Reviewed by: -arch (imp, marcel, dfr)
* Use BUS_PROBE_DEFAULT for pci probe return valueimp2005-03-051-5/+1
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* Do the dreaded s/dev_t/struct cdev */phk2004-06-162-4/+4
| | | | Bump __FreeBSD_version accordingly.
* Convert callers to the new bus_alloc_resource_any(9) API.njl2004-03-171-4/+4
| | | | | Submitted by: Mark Santcroos <marks@ripe.net> Reviewed by: imp, dfr, bde
* Device megapatch 4/6:phk2004-02-211-1/+2
| | | | | | | | Introduce d_version field in struct cdevsw, this must always be initialized to D_VERSION. Flip sense of D_NOGIANT flag to D_NEEDGIANT, this involves removing four D_NOGIANT flags and adding 145 D_NEEDGIANT flags.
* Device megapatch 1/6:phk2004-02-211-2/+0
| | | | | | | Free approx 86 major numbers with a mostly automatically generated patch. A number of strategic drivers have been left behind by caution, and a few because they still (ab)use their major number.
* Fixed a memory leak.ru2004-01-181-0/+1
| | | | Reported by: Stanford Metacompilation research group
* Use PCIR_BAR(x) instead of PCIR_MAPS.jhb2003-09-021-1/+1
| | | | | Glanced over by: imp, gibbs Tested by: i386 LINT
* Prefer new location of pci include files (which have only been in theimp2003-08-221-2/+2
| | | | | tree for two or more years now), except in a few places where there's code to be compatible with older versions of FreeBSD.
* Don't provide mutexes for static busdma allocations.scottl2003-08-111-19/+22
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* Mega busdma API commit.scottl2003-07-011-0/+10
| | | | | | | | | | | | | | | | | | | | | | | | Add two new arguments to bus_dma_tag_create(): lockfunc and lockfuncarg. Lockfunc allows a driver to provide a function for managing its locking semantics while using busdma. At the moment, this is used for the asynchronous busdma_swi and callback mechanism. Two lockfunc implementations are provided: busdma_lock_mutex() performs standard mutex operations on the mutex that is specified from lockfuncarg. dftl_lock() is a panic implementation and is defaulted to when NULL, NULL are passed to bus_dma_tag_create(). The only time that NULL, NULL should ever be used is when the driver ensures that bus_dmamap_load() will not be deferred. Drivers that do not provide their own locking can pass busdma_lock_mutex,&Giant args in order to preserve the former behaviour. sparc64 and powerpc do not provide real busdma_swi functions, so this is largely a noop on those platforms. The busdma_swi on is64 is not properly locked yet, so warnings will be emitted on this platform when busdma callback deferrals happen. If anyone gets panics or warnings from dflt_lock() being called, please let me know right away. Reviewed by: tmm, gibbs
* Centralize the devstat handling for all GEOM disk device driversphk2003-03-081-1/+0
| | | | | | | | in geom_disk.c. As a side effect this makes a lot of #include <sys/devicestat.h> lines not needed and some biofinish() calls can be reduced to biodone() again.
* Gigacommit to improve device-driver source compatibility betweenphk2003-03-031-13/+5
| | | | | | | | | | | | | branches: Initialize struct cdevsw using C99 sparse initializtion and remove all initializations to default values. This patch is automatically generated and has been tested by compiling LINT with all the fields in struct cdevsw in reverse order on alpha, sparc64 and i386. Approved by: re(scottl)
* Use canonical name for cdevsw initialization.phk2003-03-021-13/+13
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* Introduce a new taskqueue that runs completely free of Giant, and inscottl2003-02-261-1/+1
| | | | | | | turns runs its tasks free of Giant too. It is intended that as drivers become locked down, they will move out of the old, Giant-bound taskqueue and into this new one. The old taskqueue has been renamed to taskqueue_swi_giant, and the new one keeps the name taskqueue_swi.
* Back out M_* changes, per decision of the TRB.imp2003-02-191-1/+1
| | | | Approved by: trb
* Fixup printf format.alfred2003-02-111-1/+1
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* Terminate 'e' event messages with a newline.scottl2003-02-111-0/+1
| | | | PR: 33202
* Fix the mly driver! If card resources became unavailable, the driver wouldscottl2003-02-062-0/+48
| | | | | | | | | | | | correctly tell CAM to requeue the command and then freeze it's queue. The problem was that when resources became available again, it wouldn't tell CAM to unfreeze it's queue, so no more commands would ever be delivered. This is simialr to the bug that was fixed in the cciss driver last year. This is a bug in 4-STABLE also, but is probably masked by the OS being fast enough to drain the completion queue before it fills up. Also add some diagnostics avaialble when compiled with MLY_DEBUG. Thanks very much to LSI Corp for donating equipment to track this down, and Vaidus Damosevicius for pestering me long enough to get it fixed.
* Remove M_TRYWAIT/M_WAITOK/M_WAIT. Callers should use 0.alfred2003-01-211-1/+1
| | | | Merge M_NOWAIT/M_DONTWAIT into a single flag M_NOWAIT.
* Destroy the management device when detaching the driver.scottl2003-01-081-0/+3
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* Pass correct parameters to bus_space_barrier() instead of 0mux2002-11-141-2/+4
| | | | so that this code compiles on alpha.
* Be consistent about functions being static.phk2002-10-161-8/+8
| | | | Spotted by: FlexeLint.
* use __packed.alfred2002-09-231-43/+43
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* Replace (ab)uses of "NULL" where "0" is really meant.archie2002-08-221-2/+2
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* Rework the kernel environment subsystem. We now convert the staticmux2002-04-171-1/+1
| | | | | | | | | | | | | | | | | environment needed at boot time to a dynamic subsystem when VM is up. The dynamic kernel environment is protected by an sx lock. This adds some new functions to manipulate the kernel environment : freeenv(), setenv(), unsetenv() and testenv(). freeenv() has to be called after every getenv() when you have finished using the string. testenv() only tests if an environment variable is present, and doesn't require a freeenv() call. setenv() and unsetenv() are self explanatory. The kenv(2) syscall exports these new functionalities to userland, mainly for kenv(1). Reviewed by: peter
* Fix warnings (comment out unused tables that are taking space in thepeter2002-02-271-0/+4
| | | | kernel)
* Update to C99, s/__FUNCTION__/__func__/,obrien2001-12-101-2/+2
| | | | also don't use ANSI string concatenation.
* - Change the taskqueue locking to protect the necessary parts of a taskjhb2001-10-261-4/+0
| | | | | | | | while it is on a queue with the queue lock and remove the per-task locks. - Remove TASK_DESTROY now that it is no longer needed. - Go back to inlining TASK_INIT now that it is short again. Inspired by: dfr
* Add locking to taskqueues. There is one mutex per task, one mutex perjhb2001-10-261-0/+4
| | | | | | | | queue, and a mutex to protect the global list of taskqueues. The only visible change is that a TASK_DESTROY() macro has been added to mirror the TASK_INIT() macro to destroy a task before it is free'd. Submitted by: Andrew Reiter <awr@watson.org>
* Fix reversed virtual/physical bus check, whoops!msmith2001-10-221-1/+1
| | | | Submitted by: HIROSHI OOTA <oota@LSi.nec.co.jp>
* KSE Milestone 2julian2001-09-121-3/+4
| | | | | | | | | | | | | | Note ALL MODULES MUST BE RECOMPILED make the kernel aware that there are smaller units of scheduling than the process. (but only allow one thread per process at this time). This is functionally equivalent to teh previousl -current except that there is a thread associated with each process. Sorry john! (your next MFC will be a doosie!) Reviewed by: peter@freebsd.org, dillon@freebsd.org X-MFC after: ha ha ha ha
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