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* [PATCH] slab: remove kmem_cache_tChristoph Lameter2006-12-071-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Replace all uses of kmem_cache_t with struct kmem_cache. The patch was generated using the following script: #!/bin/sh # # Replace one string by another in all the kernel sources. # set -e for file in `find * -name "*.c" -o -name "*.h"|xargs grep -l $1`; do quilt add $file sed -e "1,\$s/$1/$2/g" $file >/tmp/$$ mv /tmp/$$ $file quilt refresh done The script was run like this sh replace kmem_cache_t "struct kmem_cache" Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Actually update the fixed up compile failures.David Howells2006-12-061-1/+1
| | | | Signed-Off-By: David Howells <dhowells@redhat.com>
* Merge branch 'master' of ↵David Howells2006-12-068-23/+288
|\ | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 Conflicts: drivers/pcmcia/ds.c Fix up merge failures with Linus's head and fix new compile failures. Signed-Off-By: David Howells <dhowells@redhat.com>
| * Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6Linus Torvalds2006-12-058-23/+288
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (73 commits) [SCSI] aic79xx: Add ASC-29320LPE ids to driver [SCSI] stex: version update [SCSI] stex: change wait loop code [SCSI] stex: add new device type support [SCSI] stex: update device id info [SCSI] stex: adjust default queue length [SCSI] stex: add value check in hard reset routine [SCSI] stex: fix controller_info command handling [SCSI] stex: fix biosparam calculation [SCSI] megaraid: fix MMIO casts [SCSI] tgt: fix undefined flush_dcache_page() problem [SCSI] libsas: better error handling in sas_expander.c [SCSI] lpfc 8.1.11 : Change version number to 8.1.11 [SCSI] lpfc 8.1.11 : Misc Fixes [SCSI] lpfc 8.1.11 : Add soft_wwnn sysfs attribute, rename soft_wwn_enable [SCSI] lpfc 8.1.11 : Removed decoding of PCI Subsystem Id [SCSI] lpfc 8.1.11 : Add MSI (Message Signalled Interrupts) support [SCSI] lpfc 8.1.11 : Adjust LOG_FCP logging [SCSI] lpfc 8.1.11 : Fix Memory leaks [SCSI] lpfc 8.1.11 : Fix lpfc_multi_ring_support ...
| | * [SCSI] scsi tgt: SCSI RDMA Protocol library functionsFUJITA Tomonori2006-12-031-0/+77
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | libsrp provides helper functions for SRP target drivers. Some SRP target drivers would be out of drivers/scsi/ so we added an entry for libsrp in drivers/scsi/Kconfig. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: Santiago Leon <santil@us.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| | * [SCSI] scsi tgt: scsi target user and kernel communication interfaceFUJITA Tomonori2006-11-251-0/+90
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The user-space daemon and tgt kernel module need bi-directional kernel/user high-performance interface, however, mainline provides no standard interface like that. This patch adds shared memory interface between kernel and user spaces like some other drivers do by using own character device. The user-space daemon and tgt kernel module creates shared memory via mmap and use it like ring buffer. poll (kernel to user) and write (user to kernel) system calls are used for notification. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| | * [SCSI] scsi tgt: scsi target lib functionalityFUJITA Tomonori2006-11-251-0/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The core scsi target lib functions. TODO: - mv md/dm-bio-list.h to linux/bio-list.h so md and us do not have to do that weird include. - convert scsi_tgt_cmd's work struct to James's execute code. And try to kill our scsi_tgt_cmd. - add host state checking. We do refcouting so hotplug is partially supported, but we need to add state checking to make it easier on the LLD. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| | * [SCSI] export scsi-ml functions needed by tgt_scsi_lib and its LLDsFUJITA Tomonori2006-11-252-0/+53
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch contains the needed changes to the scsi-ml for the target mode support. Note, per the last review we moved almost all the fields we added to the scsi_cmnd to our internal data structure which we are going to try and kill off when we can replace it with support from other parts of the kernel. The one field we left on was the offset variable. This is needed to handle the case where the target gets request that is so large that it cannot execute it in one dma operation. So max_secotors or a segment limit may limit the size of the transfer. In this case our tgt core code will break up the command into managable transfers and send them to the LLD one at a time. The offset is then used to tell the LLD where in the command we are at. Is there another field on the scsi_cmd for that? Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| | * [SCSI] Make scsi_scan_host work for drivers which find their own targetsMatthew Wilcox2006-11-221-0/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If a driver can find its own targets, it can now fill in scan_finished and (optionally) scan_start in the scsi_host_template. Then, when it calls scsi_scan_host(), it will be called back (from a thread if asynchronous discovery is enabled), first to start the scan, and then at intervals to check if the scan is completed. Also make scsi_prep_async_scan and scsi_finish_async_scan static. Signed-off-by: Matthew Wilcox <matthew@wil.cx> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| | * Merge ../scsi-rc-fixes-2.6James Bottomley2006-11-223-8/+4
| | |\
| | * | [PATCH] aic94xx: handle REQ_DEVICE_RESETDarrick J. Wong2006-11-222-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch implements a REQ_DEVICE_RESET handler for the aic94xx driver. Like the earlier REQ_TASK_ABORT patch, this patch defers the device reset to the Scsi_Host's workqueue, which has the added benefit of ensuring that the device reset does not happen at the same time that the abort tmfs are being processed. After the phy reset, the busted drive should go away and be re-detected later, which is indeed what I've seen on both a x260 and a x206m. Signed-off-by: Darrick J. Wong <djwong@us.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| | * | [SCSI] kill scsi_assign_lockChristoph Hellwig2006-11-151-5/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | scsi_assign_lock has been unused for a long time and is a bad idea in general, so kill it. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| | * | [SCSI] libsas: add sas_abort_taskDarrick J. Wong2006-11-151-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds an external function, sas_abort_task, to enable LLDDs to abort sas_tasks. It also adds a work_struct so that the actual work of aborting a task can be shifted from tasklet context (in the LLDD) onto the scsi_host's workqueue. Signed-off-by: Darrick J. Wong <djwong@us.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| | * | [SCSI] libsas: modify error handler to use scsi_eh_* functionsDarrick J. Wong2006-11-151-3/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds an EH done queue to sas_ha, converts the error handling strategy function and the sas_scsi_task_done functions in libsas to use the scsi_eh_* commands for error'd commands, and adds checks for the INITIATOR_ABORTED flag so that we do the right thing if a sas_task has been aborted by the initiator. Signed-off-by: Darrick J. Wong <djwong@us.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| | * | [SCSI] Add ability to scan scsi busses asynchronouslyMatthew Wilcox2006-10-112-15/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since it often takes around 20-30 seconds to scan a scsi bus, it's highly advantageous to do this in parallel with other things. The bulk of this patch is ensuring that devices don't change numbering, and that all devices are discovered prior to trying to start init. For those who build SCSI as modules, there's a new scsi_wait_scan module that will ensure all bus scans are finished. This patch only handles drivers which call scsi_scan_host. Fibre Channel, SAS, SATA, USB and Firewire all need additional work. Signed-off-by: Matthew Wilcox <matthew@wil.cx> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* | | | Merge branch 'master' of ↵David Howells2006-12-051-0/+2
|\ \ \ \ | |/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 Conflicts: drivers/ata/libata-scsi.c include/linux/libata.h Futher merge of Linus's head and compilation fixups. Signed-Off-By: David Howells <dhowells@redhat.com>
| * | | [PATCH] severing module.h->sched.hAl Viro2006-12-041-0/+2
| | | | | | | | | | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | | | Merge branch 'master' of ↵David Howells2006-12-051-0/+1
|\ \ \ \ | |/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 Conflicts: drivers/infiniband/core/iwcm.c drivers/net/chelsio/cxgb2.c drivers/net/wireless/bcm43xx/bcm43xx_main.c drivers/net/wireless/prism54/islpci_eth.c drivers/usb/core/hub.h drivers/usb/input/hid-core.c net/core/netpoll.c Fix up merge failures with Linus's head and fix new compilation failures. Signed-Off-By: David Howells <dhowells@redhat.com>
| * | | [PATCH] add missing libsas include to fix s390 compilation.Dave Jones2006-11-281-0/+1
| | |/ | |/| | | | | | | | | | | | | | | | | | | include/scsi/libsas.h:479: error: field 'smp_req' has incomplete type include/scsi/libsas.h:480: error: field 'smp_resp' has incomplete type Signed-off-by: Dave Jones <davej@redhat.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | WorkStruct: make allyesconfigDavid Howells2006-11-223-7/+22
|/ / | | | | | | | | | | Fix up for make allyesconfig. Signed-Off-By: David Howells <dhowells@redhat.com>
* | [SCSI] replace u8 and u32 with __u8 and __u32 in scsi.h for user spaceFUJITA Tomonori2006-10-251-1/+1
| | | | | | | | | | | | Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* | [SCSI] scsi_debug: support REPORT TARGET PORT GROUPSHannes Reinecke2006-10-251-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | This patch adds support for REPORT TARGET PORT GROUPS. This is used eg for the multipathing priority callout to determine the path priority. With this patch multipath-tools can use the existing mpath_prio_alua callout to exercise the path priority grouping. Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Douglas Gilbert <dougg@torque.net> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* | [SCSI] libiscsi: fix oops in connection create failure pathMike Christie2006-10-251-3/+0
| | | | | | | | | | | | | | | | | | | | | | If connection creation fails we end up calling list_del on a invalid struct. This then causes an oops. We are not acutally using the lists (old MCS code we thought might be useful elsewhere) so this patch just removes that code. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* | [SCSI] iscsi class: fix slab corruption during restartMike Christie2006-10-251-4/+0
|/ | | | | | | | | | | | | | | | | The transport class recv mempools are causing slab corruption. We could hack around netlink's lack of mempool support like dm, but it is just too ulgy (dm's hack is ugly enough :) when you need to support broadcast. This patch removes the recv pools. We have not used them even when we were allocting 20 MB per session and the system only had 64 MBs. And we have no pools on the send side and have been ok there. When Peter's work gets merged we can use that since the network guys are in favor of that approach and are not going to add mempools everywhere. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6Linus Torvalds2006-10-041-40/+21
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (54 commits) [SCSI] Initial Commit of qla4xxx [SCSI] raid class: handle component-add errors [SCSI] SCSI megaraid_sas: handle thrown errors [SCSI] SCSI aic94xx: handle sysfs errors [SCSI] SCSI st: fix error handling in module init, sysfs [SCSI] SCSI sd: fix module init/exit error handling [SCSI] SCSI osst: add error handling to module init, sysfs [SCSI] scsi: remove hosts.h [SCSI] scsi: Scsi_Cmnd convertion in aic7xxx_old.c [SCSI] megaraid_sas: sets ioctl timeout and updates version,changelog [SCSI] megaraid_sas: adds tasklet for cmd completion [SCSI] megaraid_sas: prints pending cmds before setting hw_crit_error [SCSI] megaraid_sas: function pointer for disable interrupt [SCSI] megaraid_sas: frame count optimization [SCSI] megaraid_sas: FW transition and q size changes [SCSI] qla2xxx: Update version number to 8.01.07-k2. [SCSI] qla2xxx: Stall mid-layer error handlers while rport is blocked. [SCSI] qla2xxx: Add MODULE_FIRMWARE tags. [SCSI] qla2xxx: Add support for host port state FC transport attribute. [SCSI] qla2xxx: Add support for fabric name FC transport attribute. ...
| * [SCSI] scsi: device_reprobe() can failAndrew Morton2006-09-271-2/+2
| | | | | | | | | | | | | | | | device_reprobe() should return an error code. When it does so, scsi_device_reprobe() should propagate it back. Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * [SCSI] sg: fixes for large page_sizeDouglas Gilbert2006-09-261-40/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This sg driver patch addresses the problem with larger page sizes reported by Brian King in this post: http://marc.theaimsgroup.com/?l=linux-scsi&m=115867718623631&w=2 Some other related matters are also addressed. Some of these prevent oopses when the SG_SCATTER_SZ or scatter_elem_sz are set to inappropriate values. The scatter_elem_sz has been tested up to 4 MB which should make the largest data transfer with one SCSI command, 32 MB less one block, achievable with a relatively small number of elements in the scatter gather list. ChangeLog: - add scatter_elem_sz boot time parameter and sysfs module parameter that is initialized to SG_SCATTER_SZ - the driver will then adjust scatter_elem_sz to be the max(given(scatter_elem_sz), PAGE_SIZE) It will also round it up, if necessary, to be a power of two - clean up sg.h header, correct bad urls and some statements that are no longer valid - make the def_reserved_size sysfs module attribute writable Signed-off-by: Douglas Gilbert <dougg@torque.net> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* | [PATCH] helper function for retrieving scsi_cmd given host based block layer tagDavid C Somayajulu2006-10-041-0/+20
| | | | | | | | | | | | | | | | | | | | This was necessitated by the need for a function to get back to a scsi_cmnd, when an hba the posts its (corresponding) completion interrupt with a block layer tag as its reference. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: David Somayajulu <david.somayajulu@qlogic.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* | [PATCH] scsi: device_reprobe() can failAndrew Morton2006-09-301-2/+2
| | | | | | | | | | | | | | | | | | | | device_reprobe() should return an error code. When it does so, scsi_device_reprobe() should propagate it back. Acked-by: Jeff Garzik <jeff@garzik.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] BLOCK: Make it possible to disable the block layer [try #6]David Howells2006-09-301-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make it possible to disable the block layer. Not all embedded devices require it, some can make do with just JFFS2, NFS, ramfs, etc - none of which require the block layer to be present. This patch does the following: (*) Introduces CONFIG_BLOCK to disable the block layer, buffering and blockdev support. (*) Adds dependencies on CONFIG_BLOCK to any configuration item that controls an item that uses the block layer. This includes: (*) Block I/O tracing. (*) Disk partition code. (*) All filesystems that are block based, eg: Ext3, ReiserFS, ISOFS. (*) The SCSI layer. As far as I can tell, even SCSI chardevs use the block layer to do scheduling. Some drivers that use SCSI facilities - such as USB storage - end up disabled indirectly from this. (*) Various block-based device drivers, such as IDE and the old CDROM drivers. (*) MTD blockdev handling and FTL. (*) JFFS - which uses set_bdev_super(), something it could avoid doing by taking a leaf out of JFFS2's book. (*) Makes most of the contents of linux/blkdev.h, linux/buffer_head.h and linux/elevator.h contingent on CONFIG_BLOCK being set. sector_div() is, however, still used in places, and so is still available. (*) Also made contingent are the contents of linux/mpage.h, linux/genhd.h and parts of linux/fs.h. (*) Makes a number of files in fs/ contingent on CONFIG_BLOCK. (*) Makes mm/bounce.c (bounce buffering) contingent on CONFIG_BLOCK. (*) set_page_dirty() doesn't call __set_page_dirty_buffers() if CONFIG_BLOCK is not enabled. (*) fs/no-block.c is created to hold out-of-line stubs and things that are required when CONFIG_BLOCK is not set: (*) Default blockdev file operations (to give error ENODEV on opening). (*) Makes some /proc changes: (*) /proc/devices does not list any blockdevs. (*) /proc/diskstats and /proc/partitions are contingent on CONFIG_BLOCK. (*) Makes some compat ioctl handling contingent on CONFIG_BLOCK. (*) If CONFIG_BLOCK is not defined, makes sys_quotactl() return -ENODEV if given command other than Q_SYNC or if a special device is specified. (*) In init/do_mounts.c, no reference is made to the blockdev routines if CONFIG_BLOCK is not defined. This does not prohibit NFS roots or JFFS2. (*) The bdflush, ioprio_set and ioprio_get syscalls can now be absent (return error ENOSYS by way of cond_syscall if so). (*) The seclvl_bd_claim() and seclvl_bd_release() security calls do nothing if CONFIG_BLOCK is not set, since they can't then happen. Signed-Off-By: David Howells <dhowells@redhat.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
* | [PATCH] Split struct request ->flags into two partsJens Axboe2006-09-301-1/+1
|/ | | | | | | | | | Right now ->flags is a bit of a mess: some are request types, and others are just modifiers. Clean this up by splitting it into ->cmd_type and ->cmd_flags. This allows introduction of generic Linux block message types, useful for sending generic Linux commands to block devices. Signed-off-by: Jens Axboe <axboe@suse.de>
* [PATCH] SCSI gfp_t annotationsAl Viro2006-09-241-2/+2
| | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [SCSI] SPI transport class: misc DV fixesJames Bottomley2006-09-231-1/+2
| | | | | | | | | | Key more of the domain validation settings off the inquiry data from the disk (in particular, don't try IU or DT unless the disk claims to support them. Also add a new dv_in_progress flag to prevent recursive DV. Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* Merge mulgrave-w:git/scsi-misc-2.6James Bottomley2006-09-2311-48/+1543
|\ | | | | | | | | | | | | | | | | | | | | | | Conflicts: drivers/scsi/iscsi_tcp.c drivers/scsi/iscsi_tcp.h Pretty horrible merge between crypto hash consolidation and crypto_digest_...->crypto_hash_... conversion Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * [SCSI] aci94xx: implement link rate settingJames Bottomley2006-09-072-1/+2
| | | | | | | | | | | | | | | | | | This patch implements the ability to set the minimum and maximum linkrates for both libsas (for expanders) and aic94xx (for the host phys). It also tidies up the setting of the hardware min and max to make sure they're updated when the expander emits a change broadcast. Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * [SCSI] scsi_transport_sas: make minimum and maximum linkrate settable quantitiesJames Bottomley2006-09-071-0/+6
| | | | | | | | | | | | | | | | According to SPEC, the minimum_linkrate and maximum_linkrate should be settable by the user. This patch introduces a callback that allows the sas class to pass these settings on to the driver. Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * [SCSI] SAS: consolidate linkspeed definitionsJames Bottomley2006-09-073-30/+24
| | | | | | | | | | | | | | | | | | | | At the moment we have two separate linkspeed enumerations covering roughly the same values. This patch consolidates on a single one enum sas_linkspeed in scsi_transport_sas.h and uses it everywhere in the aic94xx driver. Eventually I'll get around to removing the duplicated fields in asd_sas_phy and sas_phy ... Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * [SCSI] FC transport: Add dev_loss_tmo callbacks, and new fast_io_fail_tmo w/ ↵James Smart2006-09-041-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | callback This patch adds the following functionality to the FC transport: - dev_loss_tmo LLDD callback : Called to essentially confirm the deletion of an rport. Thus, it is called whenever the dev_loss_tmo fires, or when the rport is deleted due to other circumstances (module unload, etc). It is expected that the callback will initiate the termination of any outstanding i/o on the rport. - fast_io_fail_tmo and LLD callback: There are some cases where it may take a long while to truly determine device loss, but the system is in a multipathing configuration that if the i/o was failed quickly (faster than dev_loss_tmo), it could be redirected to a different path and completed sooner. Many thanks to Mike Reed who cleaned up the initial RFC in support of this post. The original RFC is at: http://marc.theaimsgroup.com/?l=linux-scsi&m=115505981027246&w=2 Signed-off-by: James Smart <James.Smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * [SCSI] SCSI & FC transport: extend event vendor id's to 64bitsJames Smart2006-09-023-5/+6
| | | | | | | | | | | | | | | | | | | | | | During discussions with Mike Christie, I became convinced that we needed a larger vendor id. This patch extends the id from 32 to 64 bits. This applies on top of the prior patches that add SCSI transport events via netlink. Signed-off-by: James Smart <James.Smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * [SCSI] SCSI and FC Transport: add netlink support for posting of transport ↵James Smart2006-09-023-0/+191
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | events This patch formally adds support for the posting of FC events via netlink. It is a followup to the original RFC at: http://marc.theaimsgroup.com/?l=linux-scsi&m=114530667923464&w=2 and the initial posting at: http://marc.theaimsgroup.com/?l=linux-scsi&m=115507374832500&w=2 The patch has been updated to optimize the send path, per the discussions in the initial posting. Per discussions at the Storage Summit and at OLS, we are to use netlink for async events from transports. Also per discussions, to avoid a netlink protocol per transport, I've create a single NETLINK_SCSITRANSPORT protocol, which can then be used by all transports. This patch: - Creates new files scsi_netlink.c and scsi_netlink.h, which contains the single and shared definitions for the SCSI Transport. It is tied into the base SCSI subsystem intialization. Contains a single interface routine, scsi_send_transport_event(), for a transport to send an event (via multicast to a protocol specific group). - Creates a new scsi_netlink_fc.h file, which contains the FC netlink event messages - Adds 3 new routines to the fc transport: fc_get_event_number() - to get a FC event # fc_host_post_event() - to send a simple FC event (32 bits of data) fc_host_post_vendor_event() - to send a Vendor unique event, with arbitrary amounts of data. Note: the separation of event number allows for a LLD to send a standard event, followed by vendor-specific data for the event. Note: This patch assumes 2 prior fc transport patches have been installed: http://marc.theaimsgroup.com/?l=linux-scsi&m=115555807316329&w=2 http://marc.theaimsgroup.com/?l=linux-scsi&m=115581614930261&w=2 Sorry - next time I'll do something like making these individual patches of the same posting when I know they'll be posted closely together. Signed-off-by: James Smart <James.Smart@emulex.com> Tidy up configuration not to make SCSI always select NET Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * [SCSI] add failure return to scsi_init_shared_tag_map()James Bottomley2006-09-021-1/+2
| | | | | | | | | | | | And use it in the stex driver. Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * [SCSI] add refcouting around ctask usage in main IO patchMike Christie2006-09-021-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It is possible that a ctask could be completing and getting cleaned up at the same time, we are finishing up the last data transfer. This could then result in the data transfer code using stale or invalid values. This patch adds a refcount to the ctask. When the count goes to zero then we know the transmit thread and recv thread or softirq are not touching it and we can safely release it. The eh should not need to grab a reference because it only cleans up a task if it has both the xmit mutex and recv lock (or recv side suspended). Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * [SCSI] libiscsi, iscsi_tcp, iscsi_iser: check that burst lengths are valid.Mike Christie2006-09-021-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | iSCSI RFC states that the first burst length must be smaller than the max burst length. We currently assume targets will be good, but that may not be the case, so this patch adds a check. This patch also moves the unsol data out offset to the lib so the LLDs do not have to track it. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * [SCSI] add shared tag map helpersJames Bottomley2006-08-312-1/+20
| | | | | | | | | | | | | | | | | | This patch adds support for sharing tag maps at the host level (i.e. either every queue [LUN] has its own tag map or there's a single one for the entire host). This formulation is primarily intended to help single issue queue hardware, like the aic7xxx Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * [SCSI] aic94xx: new driverJames Bottomley2006-08-293-0/+1277
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is the end point of the separate aic94xx driver based on the original driver and transport class from Luben Tuikov <ltuikov@yahoo.com> The log of the separate development is: Alexis Bruemmer: o aic94xx: fix hotplug/unplug for expanderless systems o aic94xx: disable split completion timer/setting by default o aic94xx: wide port off expander support o aic94xx: remove various inline functions o aic94xx: use bitops o aic94xx: remove queue comment o aic94xx: remove sas_common.c o aic94xx: sas remove depot's o aic94xx: use available list_for_each_entry_safe_reverse() o aic94xx: sas header file merge James Bottomley: o aic94xx: fix TF_TMF_NO_CTX processing o aic94xx: convert to request_firmware interface o aic94xx: fix hotplug/unplug o aic94xx: add link error counts to the expander phys o aic94xx: add transport class phy reset capability o aic94xx: remove local_attached flag o Remove README o Fixup Makefile variable for libsas rename o Rename sas->libsas o aic94xx: correct return code for sas_discover_event o aic94xx: use parent backlink port o aic94xx: remove channel abstraction o aic94xx: fix routing algorithms o aic94xx: add backlink port o aic94xx: fix cascaded expander properties o aic94xx: fix sleep under lock o aic94xx: fix panic on module removal in complex topology o aic94xx: make use of the new sas_port o rename sas_port to asd_sas_port o Fix for eh_strategy_handler move o aic94xx: move entirely over to correct transport class formulation o remove last vestages of sas_rphy_alloc() o update for eh_timed_out move o Preliminary expander support for aic94xx o sas: remove event thread o minor warning cleanups o remove last vestiges of id mapping arrays o Further updates o Convert aic94xx over entirely to the transport class end device and o update aic94xx/sas to use the new sas transport class end device o [PATCH] aic94xx: attaching to the sas transport class o Add missing completion removal from prior patch o [PATCH] aic94xx: attaching to the sas transport class o Build fixes from akpm Jeff Garzik: o [scsi aic94xx] Remove ->owner from PCI info table Luben Tuikov: o initial aic94xx driver Mike Anderson: o aic94xx: fix panic on module insertion o aic94xx: stub out SATA_DEV case o aic94xx: compile warning cleanups o aic94xx: sas_alloc_task o aic94xx: ref count update o aic94xx nexus loss time value o [PATCH] aic94xx: driver assertion in non-x86 BIOS env Randy Dunlap: o libsas: externs not needed Robert Tarte: o aic94xx: sequence patch - fixes SATA support Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * [SCSI] scsi_transport_sas: remove local_attached flagJames Bottomley2006-08-271-3/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This flag denotes local attachment of the phy. There are two problems with it: 1) It's actually redundant ... you can get the same information simply by seeing whether a host is the phys parent 2) we condition a lot of phy parameters on it on the false assumption that we can only control local phys. I'm wiring up phy resets in the aic94xx now, and it will be able to reset non-local phys as well. I fixed 2) by moving the local check into the reset and stats function of the mptsas, since that seems to be the only HBA that can't (currently) control non-local phys. Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * Merge ../linux-2.6James Bottomley2006-08-272-5/+18
| |\
| * | [SCSI] fc transport: add fc_host system_hostname attribute and u64_to_wwn()James Smart2006-08-191-11/+27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch updates the fc transport for the following: - Addition of a new attribute "system_hostname" which can be used to set the fully qualified hostname that the fc_host is attached to. The fc_host can then register this string as the FDMI-based host name attribute. Note: for NPIV, a fc_host could be associated with a system which is not the local system. - Add the inline function u64_to_wwn(), which is the inverse of the existing wwn_to_u64() function. - Slight reorg, just to keep dynamic attributes with each other, etc Signed-off-by: James Smart <James.Smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * | [SCSI] fc transport: convert fc_host symbolic_name attribute to a dynamic ↵James Smart2006-08-191-1/+2
| | | | | | | | | | | | | | | | | | attribute Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * | [SCSI] Improve inquiry printingMatthew Wilcox2006-08-061-7/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Replace scsi_device_types array API with scsi_device_type function API. Gets rid of a lot of common code, as well as being easier to use. - Add the new device types in SPC4 r05a, and rename some of the older ones. - Reformat the printing of inquiry data; now fits on one line and includes PQ. I think I've addressed all the feedback from the previous versions. My current test box prints: scsi 2:0:1:0: Direct access HP 18.2G ATLAS10K3_18_SCA HP05 PQ: 0 ANSI: 2 Signed-off-by: Matthew Wilcox <matthew@wil.cx> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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