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linux/include/scsi/libsas.h

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[SCSI] aic94xx: new driver 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>
2006-08-29 09:22:51 -05:00
[SCSI] Add SATA support to libsas Hook the scsi_host_template functions in libsas to delegate functionality to libata when appropriate. Signed-off-by: Darrick J. Wong <djwong@us.ibm.com> Misc code changes and merge fixes and update for libata->drivers/ata move Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-08-10 19:19:47 -07:00
[SCSI] aic94xx: new driver 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>
2006-08-29 09:22:51 -05:00
cleanup asm/scatterlist.h includes Not architecture specific code should not #include <asm/scatterlist.h>. This patch therefore either replaces them with #include <linux/scatterlist.h> or simply removes them if they were unused. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-10-30 10:35:04 +01:00
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo <tj@kernel.org> Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
2010-03-24 17:04:11 +09:00
[SCSI] aic94xx: new driver 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>
2006-08-29 09:22:51 -05:00
[SCSI] libsas: suspend / resume support libsas power management routines to suspend and recover the sas domain based on a model where the lldd is allowed and expected to be "forgetful". sas_suspend_ha - disable event processing allowing the lldd to take down links without concern for causing hotplug events. Regardless of whether the lldd actually posts link down messages libsas notifies the lldd that all domain_devices are gone. sas_prep_resume_ha - on the way back up before the lldd starts link training clean out any spurious events that were generated on the way down, and re-enable event processing sas_resume_ha - after the lldd has started and decided that all phys have posted link-up events this routine is called to let libsas start it's own timeout of any phys that did not resume. After the timeout an lldd can cancel the phy teardown by posting a link-up event. Storage for ex_change_count (u16) and phy_change_count (u8) are changed to int so they can be set to -1 to indicate 'invalidated'. Signed-off-by: Dan Williams <dan.j.williams@intel.com> Reviewed-by: Jacek Danecki <jacek.danecki@intel.com> Tested-by: Maciej Patelczyk <maciej.patelczyk@intel.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-06-21 23:41:51 -07:00
[SCSI] aic94xx: new driver 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>
2006-08-29 09:22:51 -05:00
[SCSI] libsas: prevent domain rediscovery competing with ata error handling libata error handling provides for a timeout for link recovery. libsas must not rescan for previously known devices in this interval otherwise it may remove a device that is simply waiting for its link to recover. Let libata-eh make the determination of when the link is stable and prevent libsas (host workqueue) from taking action while this determination is pending. Using a mutex (ha->disco_mutex) to flush and disable revalidation while eh is running requires any discovery action that may block on eh be moved to its own context outside the lock. Probing ATA devices explicitly waits on ata-eh and the cache-flush-io issued during device removal may also pend awaiting eh completion. Essentially any rphy add/remove activity needs to run outside the lock. This adds two new cleanup states for sas_unregister_domain_devices() 'allocated-but-not-probed', and 'flagged-for-destruction'. In the 'allocated-but-not-probed' state dev->rphy points to a rphy that is known to have not been through a sas_rphy_add() event. At domain teardown check if this device is still pending probe and cleanup accordingly. Similarly if a device has already been queued for removal then sas_unregister_domain_devices has nothing to do. Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-11-17 17:59:51 -08:00
[SCSI] libsas: suspend / resume support libsas power management routines to suspend and recover the sas domain based on a model where the lldd is allowed and expected to be "forgetful". sas_suspend_ha - disable event processing allowing the lldd to take down links without concern for causing hotplug events. Regardless of whether the lldd actually posts link down messages libsas notifies the lldd that all domain_devices are gone. sas_prep_resume_ha - on the way back up before the lldd starts link training clean out any spurious events that were generated on the way down, and re-enable event processing sas_resume_ha - after the lldd has started and decided that all phys have posted link-up events this routine is called to let libsas start it's own timeout of any phys that did not resume. After the timeout an lldd can cancel the phy teardown by posting a link-up event. Storage for ex_change_count (u16) and phy_change_count (u8) are changed to int so they can be set to -1 to indicate 'invalidated'. Signed-off-by: Dan Williams <dan.j.williams@intel.com> Reviewed-by: Jacek Danecki <jacek.danecki@intel.com> Tested-by: Maciej Patelczyk <maciej.patelczyk@intel.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-06-21 23:41:51 -07:00
[SCSI] aic94xx: new driver 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>
2006-08-29 09:22:51 -05:00
[SCSI] sas: unify the pointlessly separated enums sas_dev_type and sas_device_type These enums have been separate since the dawn of SAS, mainly because the latter is a procotol only enum and the former includes additional state for libsas. The dichotomy causes endless confusion about which one you should use where and leads to pointless warnings like this: drivers/scsi/mvsas/mv_sas.c: In function 'mvs_update_phyinfo': drivers/scsi/mvsas/mv_sas.c:1162:34: warning: comparison between 'enum sas_device_type' and 'enum sas_dev_type' [-Wenum-compare] Fix by eliminating one of them. The one kept is effectively the sas.h one, but call it sas_device_type and make sure the enums are all properly namespaced with the SAS_ prefix. Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-05-07 14:44:06 -07:00
[SCSI] SAS: consolidate linkspeed definitions 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>
2006-09-06 17:36:13 -05:00
[SCSI] aic94xx: new driver 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>
2006-08-29 09:22:51 -05:00
[SCSI] libsas: Convert sas_proto users to sas_protocol sparse complains about the mixing of enums in libsas. Since the underlying numeric values of both enums are the same, combine them to get rid of the warning. Signed-off-by: Darrick J. Wong <djwong@us.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2007-11-05 11:51:17 -08:00
[SCSI] aic94xx: new driver 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>
2006-08-29 09:22:51 -05:00
[SCSI] libsas: suspend / resume support libsas power management routines to suspend and recover the sas domain based on a model where the lldd is allowed and expected to be "forgetful". sas_suspend_ha - disable event processing allowing the lldd to take down links without concern for causing hotplug events. Regardless of whether the lldd actually posts link down messages libsas notifies the lldd that all domain_devices are gone. sas_prep_resume_ha - on the way back up before the lldd starts link training clean out any spurious events that were generated on the way down, and re-enable event processing sas_resume_ha - after the lldd has started and decided that all phys have posted link-up events this routine is called to let libsas start it's own timeout of any phys that did not resume. After the timeout an lldd can cancel the phy teardown by posting a link-up event. Storage for ex_change_count (u16) and phy_change_count (u8) are changed to int so they can be set to -1 to indicate 'invalidated'. Signed-off-by: Dan Williams <dan.j.williams@intel.com> Reviewed-by: Jacek Danecki <jacek.danecki@intel.com> Tested-by: Maciej Patelczyk <maciej.patelczyk@intel.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-06-21 23:41:51 -07:00
[SCSI] aic94xx: new driver 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>
2006-08-29 09:22:51 -05:00
[SCSI] libsas: suspend / resume support libsas power management routines to suspend and recover the sas domain based on a model where the lldd is allowed and expected to be "forgetful". sas_suspend_ha - disable event processing allowing the lldd to take down links without concern for causing hotplug events. Regardless of whether the lldd actually posts link down messages libsas notifies the lldd that all domain_devices are gone. sas_prep_resume_ha - on the way back up before the lldd starts link training clean out any spurious events that were generated on the way down, and re-enable event processing sas_resume_ha - after the lldd has started and decided that all phys have posted link-up events this routine is called to let libsas start it's own timeout of any phys that did not resume. After the timeout an lldd can cancel the phy teardown by posting a link-up event. Storage for ex_change_count (u16) and phy_change_count (u8) are changed to int so they can be set to -1 to indicate 'invalidated'. Signed-off-by: Dan Williams <dan.j.williams@intel.com> Reviewed-by: Jacek Danecki <jacek.danecki@intel.com> Tested-by: Maciej Patelczyk <maciej.patelczyk@intel.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-06-21 23:41:51 -07:00
[SCSI] aic94xx: new driver 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>
2006-08-29 09:22:51 -05:00
[SCSI] libsas: Allow expander T-T attachments Allow expander table-to-table attachments for expanders that support it. Signed-off-by: Luben Tuikov <ltuikov@yahoo.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-09-22 09:41:36 -07:00
[SCSI] aic94xx: new driver 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>
2006-08-29 09:22:51 -05:00
[SCSI] libsas: Allow expander T-T attachments Allow expander table-to-table attachments for expanders that support it. Signed-off-by: Luben Tuikov <ltuikov@yahoo.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-09-22 09:41:36 -07:00
[SCSI] aic94xx: new driver 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>
2006-08-29 09:22:51 -05:00
[SCSI] libsas: add mutex for SMP task execution SAS does not tag SMP requests, and at least one lldd (isci) does not permit more than one in-flight request at a time. [jejb: fix sas_init_dev tab issues while we're at it] Signed-off-by: Jeff Skirvin <jeffrey.d.skirvin@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-11-16 09:44:13 +00:00
[SCSI] aic94xx: new driver 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>
2006-08-29 09:22:51 -05:00
[SCSI] libsas: fix taskfile corruption in sas_ata_qc_fill_rtf fill_result_tf() grabs the taskfile flags from the originating qc which sas_ata_qc_fill_rtf() promptly overwrites. The presence of an ata_taskfile in the sata_device makes it tempting to just copy the full contents in sas_ata_qc_fill_rtf(). However, libata really only wants the fis contents and expects the other portions of the taskfile to not be touched by ->qc_fill_rtf. To that end store a fis buffer in the sata_device and use ata_tf_from_fis() like every other ->qc_fill_rtf() implementation. Cc: <stable@vger.kernel.org> Reported-by: Praveen Murali <pmurali@logicube.com> Tested-by: Praveen Murali <pmurali@logicube.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-06-22 10:52:34 -07:00
[SCSI] aic94xx: new driver 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>
2006-08-29 09:22:51 -05:00
libsas: use ata_dev_classify() Use the ata device class from libata in libsas instead of checking the supported command set and switch to using ata_dev_classify() instead of our own method. Cc: Tejun Heo <tj@kernel.org> Cc: Dan Williams <dan.j.williams@intel.com> Acked-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Tejun Heo <tj@kernel.org>
2014-11-05 13:08:20 +01:00
[SCSI] Add SATA support to libsas Hook the scsi_host_template functions in libsas to delegate functionality to libata when appropriate. Signed-off-by: Darrick J. Wong <djwong@us.ibm.com> Misc code changes and merge fixes and update for libata->drivers/ata move Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-08-10 19:19:47 -07:00
scsi: libsas: align sata_device's rps_resp on a cacheline commit c2e8fbf908afd81ad502b567a6639598f92c9b9d upstream. The rps_resp buffer in ata_device is a DMA target, but it isn't explicitly cacheline aligned. Due to this, adjacent fields can be overwritten with stale data from memory on non-coherent architectures. As a result, the kernel is sometimes unable to communicate with an SATA device behind a SAS expander. Fix this by ensuring that the rps_resp buffer is cacheline aligned. This issue is similar to that fixed by Commit 84bda12af31f93 ("libata: align ap->sector_buf") and Commit 4ee34ea3a12396f35b26 ("libata: Align ata_device's id on a cacheline"). Signed-off-by: Huacai Chen <chenhc@lemote.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-21 14:23:39 +01:00
[SCSI] libsas: fix taskfile corruption in sas_ata_qc_fill_rtf fill_result_tf() grabs the taskfile flags from the originating qc which sas_ata_qc_fill_rtf() promptly overwrites. The presence of an ata_taskfile in the sata_device makes it tempting to just copy the full contents in sas_ata_qc_fill_rtf(). However, libata really only wants the fis contents and expects the other portions of the taskfile to not be touched by ->qc_fill_rtf. To that end store a fis buffer in the sata_device and use ata_tf_from_fis() like every other ->qc_fill_rtf() implementation. Cc: <stable@vger.kernel.org> Reported-by: Praveen Murali <pmurali@logicube.com> Tested-by: Praveen Murali <pmurali@logicube.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-06-22 10:52:34 -07:00
[SCSI] aic94xx: new driver 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>
2006-08-29 09:22:51 -05:00
[SCSI] libsas: enforce eh strategy handlers only in eh context The strategy handlers may be called in places that are problematic for libsas (i.e. sata resets outside of domain revalidation filtering / libata link recovery), or problematic for userspace (non-blocking ioctl to sleeping reset functions). However, these routines are also called for eh escalations and recovery of scsi_eh_prep_cmnd(), so permit them as long as we are running in the host's error handler, otherwise arrange for them to be triggered in eh_context. Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-06-21 23:30:48 -07:00
[SCSI] libsas: convert dev->gone to flags In preparation for adding tracking of another device state "destroy". Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-01-07 08:52:39 +00:00
[SCSI] libsas: suspend / resume support libsas power management routines to suspend and recover the sas domain based on a model where the lldd is allowed and expected to be "forgetful". sas_suspend_ha - disable event processing allowing the lldd to take down links without concern for causing hotplug events. Regardless of whether the lldd actually posts link down messages libsas notifies the lldd that all domain_devices are gone. sas_prep_resume_ha - on the way back up before the lldd starts link training clean out any spurious events that were generated on the way down, and re-enable event processing sas_resume_ha - after the lldd has started and decided that all phys have posted link-up events this routine is called to let libsas start it's own timeout of any phys that did not resume. After the timeout an lldd can cancel the phy teardown by posting a link-up event. Storage for ex_change_count (u16) and phy_change_count (u8) are changed to int so they can be set to -1 to indicate 'invalidated'. Signed-off-by: Dan Williams <dan.j.williams@intel.com> Reviewed-by: Jacek Danecki <jacek.danecki@intel.com> Tested-by: Maciej Patelczyk <maciej.patelczyk@intel.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-06-21 23:41:51 -07:00
[SCSI] libsas: prevent domain rediscovery competing with ata error handling libata error handling provides for a timeout for link recovery. libsas must not rescan for previously known devices in this interval otherwise it may remove a device that is simply waiting for its link to recover. Let libata-eh make the determination of when the link is stable and prevent libsas (host workqueue) from taking action while this determination is pending. Using a mutex (ha->disco_mutex) to flush and disable revalidation while eh is running requires any discovery action that may block on eh be moved to its own context outside the lock. Probing ATA devices explicitly waits on ata-eh and the cache-flush-io issued during device removal may also pend awaiting eh completion. Essentially any rphy add/remove activity needs to run outside the lock. This adds two new cleanup states for sas_unregister_domain_devices() 'allocated-but-not-probed', and 'flagged-for-destruction'. In the 'allocated-but-not-probed' state dev->rphy points to a rphy that is known to have not been through a sas_rphy_add() event. At domain teardown check if this device is still pending probe and cleanup accordingly. Similarly if a device has already been queued for removal then sas_unregister_domain_devices has nothing to do. Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-11-17 17:59:51 -08:00
[SCSI] libata, libsas: introduce sched_eh and end_eh port ops When managing shost->host_eh_scheduled libata assumes that there is a 1:1 shost-to-ata_port relationship. libsas creates a 1:N relationship so it needs to manage host_eh_scheduled cumulatively at the host level. The sched_eh and end_eh port port ops allow libsas to track when domain devices enter/leave the "eh-pending" state under ha->lock (previously named ha->state_lock, but it is no longer just a lock for ha->state changes). Since host_eh_scheduled indicates eh without backing commands pinning the device it can be deallocated at any time. Move the taking of the domain_device reference under the port_lock to guarantee that the ata_port stays around for the duration of eh. Reviewed-by: Jacek Danecki <jacek.danecki@intel.com> Acked-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-06-21 23:25:27 -07:00
[SCSI] libsas: enforce eh strategy handlers only in eh context The strategy handlers may be called in places that are problematic for libsas (i.e. sata resets outside of domain revalidation filtering / libata link recovery), or problematic for userspace (non-blocking ioctl to sleeping reset functions). However, these routines are also called for eh escalations and recovery of scsi_eh_prep_cmnd(), so permit them as long as we are running in the host's error handler, otherwise arrange for them to be triggered in eh_context. Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-06-21 23:30:48 -07:00
[SCSI] libsas: convert dev->gone to flags In preparation for adding tracking of another device state "destroy". Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-01-07 08:52:39 +00:00
[SCSI] aic94xx: new driver 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>
2006-08-29 09:22:51 -05:00
[SCSI] libsas: fix timeout vs completion race Until we have told the lldd to forget a task a timed out operation can return from the hardware at any time. Since completion frees the task we need to make sure that no tasks run their normal completion handler once eh has decided to manage the task. Similar to ata_scsi_cmd_error_handler() freeze completions to let eh judge the outcome of the race. Task collector mode is problematic because it presents a situation where a task can be timed out and aborted before the lldd has even seen it. For this case we need to guarantee that a task that an lldd has been told to forget does not get queued after the lldd says "never seen it". With sas_scsi_timed_out we achieve this with the ->task_queue_flush mutex, rather than adding more time. Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-11-28 11:29:20 -08:00
[SCSI] sas: unify the pointlessly separated enums sas_dev_type and sas_device_type These enums have been separate since the dawn of SAS, mainly because the latter is a procotol only enum and the former includes additional state for libsas. The dichotomy causes endless confusion about which one you should use where and leads to pointless warnings like this: drivers/scsi/mvsas/mv_sas.c: In function 'mvs_update_phyinfo': drivers/scsi/mvsas/mv_sas.c:1162:34: warning: comparison between 'enum sas_device_type' and 'enum sas_dev_type' [-Wenum-compare] Fix by eliminating one of them. The one kept is effectively the sas.h one, but call it sas_device_type and make sure the enums are all properly namespaced with the SAS_ prefix. Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-05-07 14:44:06 -07:00
[SCSI] aic94xx: new driver 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>
2006-08-29 09:22:51 -05:00
[SCSI] SAS: consolidate linkspeed definitions 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>
2006-09-06 17:36:13 -05:00
[SCSI] aic94xx: new driver 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>
2006-08-29 09:22:51 -05:00
[SCSI] libsas: fix sas_find_local_phy(), take phy references In the direct-attached case this routine returns the phy on which this device was first discovered. Which is broken if we want to support wide-targets, as this phy reference can become stale even though the port is still active. In the expander-attached case this routine tries to lookup the phy by scanning the attached sas addresses of the parent expander, and BUG_ONs if it can't find it. However since eh and the libsas workqueue run independently we can still be attempting device recovery via eh after libsas has recorded the device as detached. This is even easier to hit now that eh is blocked while device domain rediscovery takes place, and that libata is fed more timed out commands increasing the chances that it will try to recover the ata device. Arrange for dev->phy to always point to a last known good phy, it may be stale after the port is torn down, but it will catch up for wide port reconfigurations, and never be NULL. Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-12-21 21:33:17 -08:00
[SCSI] aic94xx: new driver 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>
2006-08-29 09:22:51 -05:00
[SCSI] libsas: prevent domain rediscovery competing with ata error handling libata error handling provides for a timeout for link recovery. libsas must not rescan for previously known devices in this interval otherwise it may remove a device that is simply waiting for its link to recover. Let libata-eh make the determination of when the link is stable and prevent libsas (host workqueue) from taking action while this determination is pending. Using a mutex (ha->disco_mutex) to flush and disable revalidation while eh is running requires any discovery action that may block on eh be moved to its own context outside the lock. Probing ATA devices explicitly waits on ata-eh and the cache-flush-io issued during device removal may also pend awaiting eh completion. Essentially any rphy add/remove activity needs to run outside the lock. This adds two new cleanup states for sas_unregister_domain_devices() 'allocated-but-not-probed', and 'flagged-for-destruction'. In the 'allocated-but-not-probed' state dev->rphy points to a rphy that is known to have not been through a sas_rphy_add() event. At domain teardown check if this device is still pending probe and cleanup accordingly. Similarly if a device has already been queued for removal then sas_unregister_domain_devices has nothing to do. Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-11-17 17:59:51 -08:00
[SCSI] aic94xx: new driver 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>
2006-08-29 09:22:51 -05:00
[SCSI] libsas: Convert sas_proto users to sas_protocol sparse complains about the mixing of enums in libsas. Since the underlying numeric values of both enums are the same, combine them to get rid of the warning. Signed-off-by: Darrick J. Wong <djwong@us.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2007-11-05 11:51:17 -08:00
[SCSI] aic94xx: new driver 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>
2006-08-29 09:22:51 -05:00
[SCSI] libsas: enforce eh strategy handlers only in eh context The strategy handlers may be called in places that are problematic for libsas (i.e. sata resets outside of domain revalidation filtering / libata link recovery), or problematic for userspace (non-blocking ioctl to sleeping reset functions). However, these routines are also called for eh escalations and recovery of scsi_eh_prep_cmnd(), so permit them as long as we are running in the host's error handler, otherwise arrange for them to be triggered in eh_context. Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-06-21 23:30:48 -07:00
[SCSI] aic94xx: new driver 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>
2006-08-29 09:22:51 -05:00
[SCSI] libsas: convert dev->gone to flags In preparation for adding tracking of another device state "destroy". Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-01-07 08:52:39 +00:00
[SCSI] libsas: fix domain_device leak Arrange for the deallocation of a struct domain_device object when it no longer has: 1/ any children 2/ references by any scsi_targets 3/ references by a lldd The comment about domain_device lifetime in Documentation/scsi/libsas.txt is stale as it appears mainline never had a version of a struct domain_device that was registered as a kobject. We now manage domain_device reference counts on behalf of external agents. Reviewed-by: Jack Wang <jack_wang@usish.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-11-17 17:59:47 -08:00
[SCSI] aic94xx: new driver 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>
2006-08-29 09:22:51 -05:00
[SCSI] libsas: introduce sas_work to fix sas_drain_work vs sas_queue_work When requeuing work to a draining workqueue the last work instance may not be idle, so sas_queue_work() must not touch work->entry. Introduce sas_work with a drain_node list_head to have a private list for collecting work deferred due to drain collision. Fixes reports like: BUG: unable to handle kernel NULL pointer dereference at (null) IP: [<ffffffff810410d4>] process_one_work+0x2e/0x338 Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-03-09 11:00:06 -08:00
WorkStruct: make allyesconfig Fix up for make allyesconfig. Signed-Off-By: David Howells <dhowells@redhat.com>
2006-11-22 14:57:56 +00:00
[SCSI] libsas: introduce sas_work to fix sas_drain_work vs sas_queue_work When requeuing work to a draining workqueue the last work instance may not be idle, so sas_queue_work() must not touch work->entry. Introduce sas_work with a drain_node list_head to have a private list for collecting work deferred due to drain collision. Fixes reports like: BUG: unable to handle kernel NULL pointer dereference at (null) IP: [<ffffffff810410d4>] process_one_work+0x2e/0x338 Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-03-09 11:00:06 -08:00
WorkStruct: make allyesconfig Fix up for make allyesconfig. Signed-Off-By: David Howells <dhowells@redhat.com>
2006-11-22 14:57:56 +00:00
[SCSI] libsas: introduce sas_work to fix sas_drain_work vs sas_queue_work When requeuing work to a draining workqueue the last work instance may not be idle, so sas_queue_work() must not touch work->entry. Introduce sas_work with a drain_node list_head to have a private list for collecting work deferred due to drain collision. Fixes reports like: BUG: unable to handle kernel NULL pointer dereference at (null) IP: [<ffffffff810410d4>] process_one_work+0x2e/0x338 Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-03-09 11:00:06 -08:00
[SCSI] aic94xx: new driver 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>
2006-08-29 09:22:51 -05:00
WorkStruct: make allyesconfig Fix up for make allyesconfig. Signed-Off-By: David Howells <dhowells@redhat.com>
2006-11-22 14:57:56 +00:00
[SCSI] aic94xx: new driver 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>
2006-08-29 09:22:51 -05:00
[SCSI] libsas: prevent domain rediscovery competing with ata error handling libata error handling provides for a timeout for link recovery. libsas must not rescan for previously known devices in this interval otherwise it may remove a device that is simply waiting for its link to recover. Let libata-eh make the determination of when the link is stable and prevent libsas (host workqueue) from taking action while this determination is pending. Using a mutex (ha->disco_mutex) to flush and disable revalidation while eh is running requires any discovery action that may block on eh be moved to its own context outside the lock. Probing ATA devices explicitly waits on ata-eh and the cache-flush-io issued during device removal may also pend awaiting eh completion. Essentially any rphy add/remove activity needs to run outside the lock. This adds two new cleanup states for sas_unregister_domain_devices() 'allocated-but-not-probed', and 'flagged-for-destruction'. In the 'allocated-but-not-probed' state dev->rphy points to a rphy that is known to have not been through a sas_rphy_add() event. At domain teardown check if this device is still pending probe and cleanup accordingly. Similarly if a device has already been queued for removal then sas_unregister_domain_devices has nothing to do. Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-11-17 17:59:51 -08:00
[SCSI] SAS: consolidate linkspeed definitions 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>
2006-09-06 17:36:13 -05:00
[SCSI] aic94xx: new driver 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>
2006-08-29 09:22:51 -05:00
[SCSI] libsas: introduce sas_work to fix sas_drain_work vs sas_queue_work When requeuing work to a draining workqueue the last work instance may not be idle, so sas_queue_work() must not touch work->entry. Introduce sas_work with a drain_node list_head to have a private list for collecting work deferred due to drain collision. Fixes reports like: BUG: unable to handle kernel NULL pointer dereference at (null) IP: [<ffffffff810410d4>] process_one_work+0x2e/0x338 Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-03-09 11:00:06 -08:00
[SCSI] libsas: suspend / resume support libsas power management routines to suspend and recover the sas domain based on a model where the lldd is allowed and expected to be "forgetful". sas_suspend_ha - disable event processing allowing the lldd to take down links without concern for causing hotplug events. Regardless of whether the lldd actually posts link down messages libsas notifies the lldd that all domain_devices are gone. sas_prep_resume_ha - on the way back up before the lldd starts link training clean out any spurious events that were generated on the way down, and re-enable event processing sas_resume_ha - after the lldd has started and decided that all phys have posted link-up events this routine is called to let libsas start it's own timeout of any phys that did not resume. After the timeout an lldd can cancel the phy teardown by posting a link-up event. Storage for ex_change_count (u16) and phy_change_count (u8) are changed to int so they can be set to -1 to indicate 'invalidated'. Signed-off-by: Dan Williams <dan.j.williams@intel.com> Reviewed-by: Jacek Danecki <jacek.danecki@intel.com> Tested-by: Maciej Patelczyk <maciej.patelczyk@intel.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-06-21 23:41:51 -07:00
[SCSI] aic94xx: new driver 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>
2006-08-29 09:22:51 -05:00
[SCSI] libsas: Convert sas_proto users to sas_protocol sparse complains about the mixing of enums in libsas. Since the underlying numeric values of both enums are the same, combine them to get rid of the warning. Signed-off-by: Darrick J. Wong <djwong@us.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2007-11-05 11:51:17 -08:00
[SCSI] aic94xx: new driver 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>
2006-08-29 09:22:51 -05:00
WorkStruct: make allyesconfig Fix up for make allyesconfig. Signed-Off-By: David Howells <dhowells@redhat.com>
2006-11-22 14:57:56 +00:00
[SCSI] libsas: introduce sas_work to fix sas_drain_work vs sas_queue_work When requeuing work to a draining workqueue the last work instance may not be idle, so sas_queue_work() must not touch work->entry. Introduce sas_work with a drain_node list_head to have a private list for collecting work deferred due to drain collision. Fixes reports like: BUG: unable to handle kernel NULL pointer dereference at (null) IP: [<ffffffff810410d4>] process_one_work+0x2e/0x338 Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-03-09 11:00:06 -08:00
WorkStruct: make allyesconfig Fix up for make allyesconfig. Signed-Off-By: David Howells <dhowells@redhat.com>
2006-11-22 14:57:56 +00:00
[SCSI] libsas: introduce sas_work to fix sas_drain_work vs sas_queue_work When requeuing work to a draining workqueue the last work instance may not be idle, so sas_queue_work() must not touch work->entry. Introduce sas_work with a drain_node list_head to have a private list for collecting work deferred due to drain collision. Fixes reports like: BUG: unable to handle kernel NULL pointer dereference at (null) IP: [<ffffffff810410d4>] process_one_work+0x2e/0x338 Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-03-09 11:00:06 -08:00
[SCSI] aic94xx: new driver 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>
2006-08-29 09:22:51 -05:00
WorkStruct: make allyesconfig Fix up for make allyesconfig. Signed-Off-By: David Howells <dhowells@redhat.com>
2006-11-22 14:57:56 +00:00
[SCSI] aic94xx: new driver 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>
2006-08-29 09:22:51 -05:00
[SCSI] libsas: suspend / resume support libsas power management routines to suspend and recover the sas domain based on a model where the lldd is allowed and expected to be "forgetful". sas_suspend_ha - disable event processing allowing the lldd to take down links without concern for causing hotplug events. Regardless of whether the lldd actually posts link down messages libsas notifies the lldd that all domain_devices are gone. sas_prep_resume_ha - on the way back up before the lldd starts link training clean out any spurious events that were generated on the way down, and re-enable event processing sas_resume_ha - after the lldd has started and decided that all phys have posted link-up events this routine is called to let libsas start it's own timeout of any phys that did not resume. After the timeout an lldd can cancel the phy teardown by posting a link-up event. Storage for ex_change_count (u16) and phy_change_count (u8) are changed to int so they can be set to -1 to indicate 'invalidated'. Signed-off-by: Dan Williams <dan.j.williams@intel.com> Reviewed-by: Jacek Danecki <jacek.danecki@intel.com> Tested-by: Maciej Patelczyk <maciej.patelczyk@intel.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-06-21 23:41:51 -07:00
[SCSI] aic94xx: new driver 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>
2006-08-29 09:22:51 -05:00
[SCSI] libsas: Convert sas_proto users to sas_protocol sparse complains about the mixing of enums in libsas. Since the underlying numeric values of both enums are the same, combine them to get rid of the warning. Signed-off-by: Darrick J. Wong <djwong@us.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2007-11-05 11:51:17 -08:00
[SCSI] aic94xx: new driver 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>
2006-08-29 09:22:51 -05:00
[SCSI] SAS: consolidate linkspeed definitions 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>
2006-09-06 17:36:13 -05:00
[SCSI] aic94xx: new driver 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>
2006-08-29 09:22:51 -05:00
WorkStruct: make allyesconfig Fix up for make allyesconfig. Signed-Off-By: David Howells <dhowells@redhat.com>
2006-11-22 14:57:56 +00:00
[SCSI] libsas: introduce sas_work to fix sas_drain_work vs sas_queue_work When requeuing work to a draining workqueue the last work instance may not be idle, so sas_queue_work() must not touch work->entry. Introduce sas_work with a drain_node list_head to have a private list for collecting work deferred due to drain collision. Fixes reports like: BUG: unable to handle kernel NULL pointer dereference at (null) IP: [<ffffffff810410d4>] process_one_work+0x2e/0x338 Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-03-09 11:00:06 -08:00
WorkStruct: make allyesconfig Fix up for make allyesconfig. Signed-Off-By: David Howells <dhowells@redhat.com>
2006-11-22 14:57:56 +00:00
[SCSI] libsas: introduce sas_work to fix sas_drain_work vs sas_queue_work When requeuing work to a draining workqueue the last work instance may not be idle, so sas_queue_work() must not touch work->entry. Introduce sas_work with a drain_node list_head to have a private list for collecting work deferred due to drain collision. Fixes reports like: BUG: unable to handle kernel NULL pointer dereference at (null) IP: [<ffffffff810410d4>] process_one_work+0x2e/0x338 Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-03-09 11:00:06 -08:00
[SCSI] libsas: Add SAS_HA state flags to avoid queueing events while unloading Track sas_ha_struct state so that we ignore events that come in while we're shutting things down. Signed-off-by: Malahal Naineni <malahal@us.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-01-11 14:15:43 -08:00
[SCSI] libsas: introduce sas_drain_work() When an lldd invokes ->notify_port_event() it can trigger a chain of libsas events to: 1/ form the port and find the direct attached device 2/ if the attached device is an expander perform domain discovery A call to flush_workqueue() will only flush the initial port formation work. Currently libsas users need to call scsi_flush_work() up to the max depth of chain (which will grow from 2 to 3 when ata discovery is moved to its own discovery event). Instead of open coding multiple calls switch to use drain_workqueue() to flush sas work. drain_workqueue() does not handle new work submitted during the drain so libsas needs a bit of infrastructure to hold off unchained work submissions while a drain is in flight. A lldd ->notify() event is considered 'unchained' while a sas_discover_event() is 'chained'. As Tejun notes: "For now, I think it would be best to add private wrapper in libsas to support deferring unchained work items while draining." Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-12-19 16:42:34 -08:00
[SCSI] libsas: prevent domain rediscovery competing with ata error handling libata error handling provides for a timeout for link recovery. libsas must not rescan for previously known devices in this interval otherwise it may remove a device that is simply waiting for its link to recover. Let libata-eh make the determination of when the link is stable and prevent libsas (host workqueue) from taking action while this determination is pending. Using a mutex (ha->disco_mutex) to flush and disable revalidation while eh is running requires any discovery action that may block on eh be moved to its own context outside the lock. Probing ATA devices explicitly waits on ata-eh and the cache-flush-io issued during device removal may also pend awaiting eh completion. Essentially any rphy add/remove activity needs to run outside the lock. This adds two new cleanup states for sas_unregister_domain_devices() 'allocated-but-not-probed', and 'flagged-for-destruction'. In the 'allocated-but-not-probed' state dev->rphy points to a rphy that is known to have not been through a sas_rphy_add() event. At domain teardown check if this device is still pending probe and cleanup accordingly. Similarly if a device has already been queued for removal then sas_unregister_domain_devices has nothing to do. Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-11-17 17:59:51 -08:00
[SCSI] libsas: fix timeout vs completion race Until we have told the lldd to forget a task a timed out operation can return from the hardware at any time. Since completion frees the task we need to make sure that no tasks run their normal completion handler once eh has decided to manage the task. Similar to ata_scsi_cmd_error_handler() freeze completions to let eh judge the outcome of the race. Task collector mode is problematic because it presents a situation where a task can be timed out and aborted before the lldd has even seen it. For this case we need to guarantee that a task that an lldd has been told to forget does not get queued after the lldd says "never seen it". With sas_scsi_timed_out we achieve this with the ->task_queue_flush mutex, rather than adding more time. Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-11-28 11:29:20 -08:00
[SCSI] libsas: Add SAS_HA state flags to avoid queueing events while unloading Track sas_ha_struct state so that we ignore events that come in while we're shutting things down. Signed-off-by: Malahal Naineni <malahal@us.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-01-11 14:15:43 -08:00
[SCSI] aic94xx: new driver 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>
2006-08-29 09:22:51 -05:00
WorkStruct: make allyesconfig Fix up for make allyesconfig. Signed-Off-By: David Howells <dhowells@redhat.com>
2006-11-22 14:57:56 +00:00
[SCSI] aic94xx: new driver 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>
2006-08-29 09:22:51 -05:00
[SCSI] libsas: introduce sas_drain_work() When an lldd invokes ->notify_port_event() it can trigger a chain of libsas events to: 1/ form the port and find the direct attached device 2/ if the attached device is an expander perform domain discovery A call to flush_workqueue() will only flush the initial port formation work. Currently libsas users need to call scsi_flush_work() up to the max depth of chain (which will grow from 2 to 3 when ata discovery is moved to its own discovery event). Instead of open coding multiple calls switch to use drain_workqueue() to flush sas work. drain_workqueue() does not handle new work submitted during the drain so libsas needs a bit of infrastructure to hold off unchained work submissions while a drain is in flight. A lldd ->notify() event is considered 'unchained' while a sas_discover_event() is 'chained'. As Tejun notes: "For now, I think it would be best to add private wrapper in libsas to support deferring unchained work items while draining." Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-12-19 16:42:34 -08:00
[SCSI] libsas: convert ha->state to flags In preparation for adding new states (SAS_HA_DRAINING, SAS_HA_FROZEN), convert ha->state into a set of flags. Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-12-19 17:02:25 -08:00
[SCSI] libata, libsas: introduce sched_eh and end_eh port ops When managing shost->host_eh_scheduled libata assumes that there is a 1:1 shost-to-ata_port relationship. libsas creates a 1:N relationship so it needs to manage host_eh_scheduled cumulatively at the host level. The sched_eh and end_eh port port ops allow libsas to track when domain devices enter/leave the "eh-pending" state under ha->lock (previously named ha->state_lock, but it is no longer just a lock for ha->state changes). Since host_eh_scheduled indicates eh without backing commands pinning the device it can be deallocated at any time. Move the taking of the domain_device reference under the port_lock to guarantee that the ata_port stays around for the duration of eh. Reviewed-by: Jacek Danecki <jacek.danecki@intel.com> Acked-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-06-21 23:25:27 -07:00
[SCSI] libsas: enforce eh strategy handlers only in eh context The strategy handlers may be called in places that are problematic for libsas (i.e. sata resets outside of domain revalidation filtering / libata link recovery), or problematic for userspace (non-blocking ioctl to sleeping reset functions). However, these routines are also called for eh escalations and recovery of scsi_eh_prep_cmnd(), so permit them as long as we are running in the host's error handler, otherwise arrange for them to be triggered in eh_context. Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-06-21 23:30:48 -07:00
[SCSI] libsas: Add SAS_HA state flags to avoid queueing events while unloading Track sas_ha_struct state so that we ignore events that come in while we're shutting things down. Signed-off-by: Malahal Naineni <malahal@us.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-01-11 14:15:43 -08:00
[SCSI] libsas: prevent domain rediscovery competing with ata error handling libata error handling provides for a timeout for link recovery. libsas must not rescan for previously known devices in this interval otherwise it may remove a device that is simply waiting for its link to recover. Let libata-eh make the determination of when the link is stable and prevent libsas (host workqueue) from taking action while this determination is pending. Using a mutex (ha->disco_mutex) to flush and disable revalidation while eh is running requires any discovery action that may block on eh be moved to its own context outside the lock. Probing ATA devices explicitly waits on ata-eh and the cache-flush-io issued during device removal may also pend awaiting eh completion. Essentially any rphy add/remove activity needs to run outside the lock. This adds two new cleanup states for sas_unregister_domain_devices() 'allocated-but-not-probed', and 'flagged-for-destruction'. In the 'allocated-but-not-probed' state dev->rphy points to a rphy that is known to have not been through a sas_rphy_add() event. At domain teardown check if this device is still pending probe and cleanup accordingly. Similarly if a device has already been queued for removal then sas_unregister_domain_devices has nothing to do. Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-11-17 17:59:51 -08:00
[SCSI] aic94xx: new driver 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>
2006-08-29 09:22:51 -05:00
[SCSI] libsas: Remove PCI dependencies Eliminate unnecessary PCI dependencies in libsas. It should use generic DMA and struct device like other subsystems. Signed-off-by: Jeff Garzik <jeff@garzik.org> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-07-26 09:28:37 -04:00
[SCSI] aic94xx: new driver 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>
2006-08-29 09:22:51 -05:00
[SCSI] libsas: fix definition of wideport, include local sas address To date libsas has only looked at the attached sas address when determining the formation of wide ports. The specification and some hardware expects that phys with different addresses will not form a wide port unless the local peer phys also match each other. Introduce a flag to select stricter behavior at sas_register_ha() time. The flag can be dropped once it is known that all libsas users expect the same behavior. Current drivers just initialize this field to zero and get the traditional behavior. Reported-by: Patrick Thomson <patrick.s.thomson@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-10-01 13:55:52 -07:00
[SCSI] aic94xx: new driver 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>
2006-08-29 09:22:51 -05:00
scsi: sas: scsi_queue_work can fail, so make callers aware libsas uses scsi_queue_work() to queue its internal event notifications. scsi_queue_work() can return -EINVAL if the work queue doesn't exist and it does call queue_work() which can return false if the work is already queued. Make the SAS event code capable of returning errors up to the caller, which is handy when changing to dynamically allocated work in libsas as well, as discussed here: https://lkml.org/lkml/2017/6/14/121. [mkp: fixed typo] Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-06-14 13:52:43 +02:00
[SCSI] aic94xx: new driver 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>
2006-08-29 09:22:51 -05:00
[SCSI] libsas: modify error handler to use scsi_eh_* functions 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>
2006-10-30 15:18:39 -08:00
[SCSI] libsas: let libata handle command timeouts libsas-eh if it successfully aborts an ata command will hide the timeout condition (AC_ERR_TIMEOUT) from libata. The command likely completes with the all-zero task->task_status it started with. Instead, interpret a TMF_RESP_FUNC_COMPLETE as the end of the sas_task but keep the scmd around for libata-eh to handle. Tested-by: Andrzej Jakowski <andrzej.jakowski@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-11-29 12:08:50 -08:00
[SCSI] aic94xx: new driver 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>
2006-08-29 09:22:51 -05:00
[SCSI] isci: atapi support Based on original implementation from Jiangbi Liu and Maciej Trela. ATAPI transfers happen in two-to-three stages. The two stage atapi commands are those that include a dma data transfer. The data transfer portion of these operations is handled by the hardware packet-dma acceleration. The three-stage commands do not have a data transfer and are handled without hardware assistance in raw frame mode. stage1: transmit host-to-device fis to notify the device of an incoming atapi cdb. Upon reception of the pio-setup-fis repost the task_context to perform the dma transfer of the cdb+data (go to stage3), or repost the task_context to transmit the cdb as a raw frame (go to stage 2). stage2: wait for hardware notification of the cdb transmission and then go to stage 3. stage3: wait for the arrival of the terminating device-to-host fis and terminate the command. To keep the implementation simple we only support ATAPI packet-dma protocol (for commands with data) to avoid needing to handle the data transfer manually (like we do for SATA-PIO). This may affect compatibility for a small number of devices (see ATA_HORKAGE_ATAPI_MOD16_DMA). If the data-transfer underruns, or encounters an error the device-to-host fis is expected to arrive in the unsolicited frame queue to pass to libata for disposition. However, in the DONE_UNEXP_FIS (data underrun) case it appears we need to craft a response. In the DONE_REG_ERR case we do receive the UF and propagate it to libsas. Signed-off-by: Maciej Trela <maciej.trela@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-09-30 18:52:19 -07:00
[SCSI] aic94xx: new driver 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>
2006-08-29 09:22:51 -05:00
[SCSI] SAS: consolidate linkspeed definitions 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>
2006-09-06 17:36:13 -05:00
[SCSI] aic94xx: new driver 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>
2006-08-29 09:22:51 -05:00
[SCSI] libsas: sgpio write support Add SFF-8485 v0.7 / SAS-1 smp-write-gpio register support to libsas. Defer SAS-2 support unless/until it defines an sgpio interface. Minimum implementation needed to get the lights blinking. try_test_sas_gpio_gp_bit() provides a common method to parse the incoming write data (raw bitstream), and the to_sas_gpio_gp_bit() helper routine can be used as a basis for the set/clear operations for the 'read' implementation. Host implementations parse as many bits (ODx.[012]) as are locally supported and report the number of registers successfully written. If the submitted data overruns the internal number of registers available report the write as a success with the number of bytes remaining reported in ->resid_len. Example (assuming an active backplane) set the "identify" pattern for the first 21 devices: smp_write_gpio --count=2 --data=92,49,24,92,24,92,49,24 -t 4 --index=1 /dev/bsg/sas_hostX Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-09-01 21:18:20 -07:00
[SCSI] libsas: fix sas_find_local_phy(), take phy references In the direct-attached case this routine returns the phy on which this device was first discovered. Which is broken if we want to support wide-targets, as this phy reference can become stale even though the port is still active. In the expander-attached case this routine tries to lookup the phy by scanning the attached sas addresses of the parent expander, and BUG_ONs if it can't find it. However since eh and the libsas workqueue run independently we can still be attempting device recovery via eh after libsas has recorded the device as detached. This is even easier to hit now that eh is blocked while device domain rediscovery takes place, and that libata is fed more timed out commands increasing the chances that it will try to recover the ata device. Arrange for dev->phy to always point to a last known good phy, it may be stale after the port is torn down, but it will catch up for wide port reconfigurations, and never be NULL. Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-12-21 21:33:17 -08:00
[SCSI] libsas: fix try_test_sas_gpio_gp_bit() build error If the user has disabled CONFIG_SCSI_SAS_HOST_SMP then libsas drivers will not be receiving smp-gpio frames and do not need this lookup code. Reported-by: Randy Dunlap <rdunlap@xenotime.net> Tested-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-09-23 16:43:45 -07:00
[SCSI] libsas: sgpio write support Add SFF-8485 v0.7 / SAS-1 smp-write-gpio register support to libsas. Defer SAS-2 support unless/until it defines an sgpio interface. Minimum implementation needed to get the lights blinking. try_test_sas_gpio_gp_bit() provides a common method to parse the incoming write data (raw bitstream), and the to_sas_gpio_gp_bit() helper routine can be used as a basis for the set/clear operations for the 'read' implementation. Host implementations parse as many bits (ODx.[012]) as are locally supported and report the number of registers successfully written. If the submitted data overruns the internal number of registers available report the write as a success with the number of bytes remaining reported in ->resid_len. Example (assuming an active backplane) set the "identify" pattern for the first 21 devices: smp_write_gpio --count=2 --data=92,49,24,92,24,92,49,24 -t 4 --index=1 /dev/bsg/sas_hostX Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-09-01 21:18:20 -07:00
[SCSI] libsas: fix try_test_sas_gpio_gp_bit() build error If the user has disabled CONFIG_SCSI_SAS_HOST_SMP then libsas drivers will not be receiving smp-gpio frames and do not need this lookup code. Reported-by: Randy Dunlap <rdunlap@xenotime.net> Tested-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-09-23 16:43:45 -07:00
[SCSI] libsas: sgpio write support Add SFF-8485 v0.7 / SAS-1 smp-write-gpio register support to libsas. Defer SAS-2 support unless/until it defines an sgpio interface. Minimum implementation needed to get the lights blinking. try_test_sas_gpio_gp_bit() provides a common method to parse the incoming write data (raw bitstream), and the to_sas_gpio_gp_bit() helper routine can be used as a basis for the set/clear operations for the 'read' implementation. Host implementations parse as many bits (ODx.[012]) as are locally supported and report the number of registers successfully written. If the submitted data overruns the internal number of registers available report the write as a success with the number of bytes remaining reported in ->resid_len. Example (assuming an active backplane) set the "identify" pattern for the first 21 devices: smp_write_gpio --count=2 --data=92,49,24,92,24,92,49,24 -t 4 --index=1 /dev/bsg/sas_hostX Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-09-01 21:18:20 -07:00
[SCSI] aic94xx: new driver 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>
2006-08-29 09:22:51 -05:00
[SCSI] libsas: prevent double completion of scmds from eh We invoke task->task_done() to free the task in the eh case, but at this point we are prepared for scsi_eh_flush_done_q() to finish off the scmd. Introduce sas_end_task() to capture the final response status from the lldd and free the task. Also take the opportunity to kill this warning. drivers/scsi/libsas/sas_scsi_host.c: In function ‘sas_end_task’: drivers/scsi/libsas/sas_scsi_host.c:102:3: warning: case value ‘2’ not in enumerated type ‘enum exec_status’ [-Wswitch] Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-12-06 23:24:42 -08:00
[SCSI] aic94xx: new driver 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>
2006-08-29 09:22:51 -05:00
[SCSI] libsas: fix taskfile corruption in sas_ata_qc_fill_rtf fill_result_tf() grabs the taskfile flags from the originating qc which sas_ata_qc_fill_rtf() promptly overwrites. The presence of an ata_taskfile in the sata_device makes it tempting to just copy the full contents in sas_ata_qc_fill_rtf(). However, libata really only wants the fis contents and expects the other portions of the taskfile to not be touched by ->qc_fill_rtf. To that end store a fis buffer in the sata_device and use ata_tf_from_fis() like every other ->qc_fill_rtf() implementation. Cc: <stable@vger.kernel.org> Reported-by: Praveen Murali <pmurali@logicube.com> Tested-by: Praveen Murali <pmurali@logicube.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-06-22 10:52:34 -07:00
[SCSI] aic94xx: new driver 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>
2006-08-29 09:22:51 -05:00
[SCSI] libsas: implement > 16 byte CDB support Remove the arbitrary expectation in libsas that all SCSI commands are 16 bytes or less. Instead do all copies via cmd->cmd_len (and use a pointer to this in the libsas task instead of a copy). Note that this still doesn't enable > 16 byte CDB support in the underlying drivers because their internal format has to be fixed and the wire format of > 16 byte CDBs according to the SAS spec is different. the libsas drivers (isci, aic94xx, mvsas and pm8xxx are all updated for this change. Cc: Lukasz Dorau <lukasz.dorau@intel.com> Cc: Maciej Patelczyk <maciej.patelczyk@intel.com> Cc: Dave Jiang <dave.jiang@intel.com> Cc: Jack Wang <xjtuwjp@gmail.com> Cc: Lindar Liu <lindar_liu@usish.com> Cc: Xiangliang Yu <yuxiangl@marvell.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-05-07 15:38:18 -07:00
[SCSI] aic94xx: new driver 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>
2006-08-29 09:22:51 -05:00
[SCSI] libsas: Convert sas_proto users to sas_protocol sparse complains about the mixing of enums in libsas. Since the underlying numeric values of both enums are the same, combine them to get rid of the warning. Signed-off-by: Darrick J. Wong <djwong@us.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2007-11-05 11:51:17 -08:00
[SCSI] aic94xx: new driver 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>
2006-08-29 09:22:51 -05:00
[SCSI] libsas: trim sas_task of slow path infrastructure The timer and the completion are only used for slow path tasks (smp, and lldd tmfs), yet we incur the allocation space and cpu setup time for every fast path task. Cc: Xiangliang Yu <yuxiangl@marvell.com> Acked-by: Jack Wang <jack_wang@usish.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-06-21 23:36:30 -07:00
[SCSI] libsas: add sas_abort_task 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>
2006-10-30 15:18:50 -08:00
[SCSI] libsas: trim sas_task of slow path infrastructure The timer and the completion are only used for slow path tasks (smp, and lldd tmfs), yet we incur the allocation space and cpu setup time for every fast path task. Cc: Xiangliang Yu <yuxiangl@marvell.com> Acked-by: Jack Wang <jack_wang@usish.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-06-21 23:36:30 -07:00
[SCSI] aic94xx: new driver 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>
2006-08-29 09:22:51 -05:00
[SCSI] libsas: modify error handler to use scsi_eh_* functions 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>
2006-10-30 15:18:39 -08:00
[SCSI] libsas: Enable the EH strategy handler to reset a phy after a command When a SAS LLDD needs to request a device port reset, it needs to have all commands aborted before it can reset the port. Since commands are put on the EH's list in the order that they were queued, the LLDD can set a "need reset" flag in the last task to be aborted so that the EH can reset the port after all commands are aborted. Signed-off-by: Darrick J. Wong <djwong@us.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-01-11 14:15:17 -08:00
[SCSI] libsas: Don't give scsi_cmnds to the EH if they never made it to the SAS LLDD or have already returned On a system with many SAS targets, it appears possible that a scsi_cmnd can time out without ever making it to the SAS LLDD or at the same time that a completion is occurring. In both of these cases, telling the LLDD to abort the sas_task makes no sense because the LLDD won't know about the sas_task; what we really want to do is to increase the timer. Note that this involves creating another sas_task bit to indicate whether or not the task has been sent to the LLDD; I could have implemented this by slightly redefining SAS_TASK_STATE_PENDING, but this way seems cleaner. This second version amends the aic94xx portion to set the TASK_AT_INITIATOR flag for all sas_tasks that were passed to lldd_execute_task. Signed-off-by: Darrick J. Wong <djwong@us.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-01-11 14:14:55 -08:00
[SCSI] aic94xx: new driver 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>
2006-08-29 09:22:51 -05:00
[SCSI] libsas: export sas_alloc_task() Now that isci has added a 3rd open coded user of this functionality just share the libsas version. Acked-by: Jack Wang <jack_wang@usish.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-07-29 17:26:39 -07:00
[SCSI] libsas: trim sas_task of slow path infrastructure The timer and the completion are only used for slow path tasks (smp, and lldd tmfs), yet we incur the allocation space and cpu setup time for every fast path task. Cc: Xiangliang Yu <yuxiangl@marvell.com> Acked-by: Jack Wang <jack_wang@usish.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-06-21 23:36:30 -07:00
[SCSI] libsas: export sas_alloc_task() Now that isci has added a 3rd open coded user of this functionality just share the libsas version. Acked-by: Jack Wang <jack_wang@usish.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-07-29 17:26:39 -07:00
[SCSI] aic94xx: new driver 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>
2006-08-29 09:22:51 -05:00
libsas: remove task_collector mode The task_collector mode (or "latency_injector", (C) Dan Willians) is an optional I/O path in libsas that queues up scsi commands instead of directly sending it to the hardware. It generall increases latencies to in the optiomal case slightly reduce mmio traffic to the hardware. Only the obsolete aic94xx driver and the mvsas driver allowed to use it without recompiling the kernel, and most drivers didn't support it at all. Remove the giant blob of code to allow better optimizations for scsi-mq in the future. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Hannes Reinecke <hare@suse.de> Acked-by: Dan Williams <dan.j.williams@intel.com>
2014-11-05 10:36:28 +01:00
[SCSI] aic94xx: new driver 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>
2006-08-29 09:22:51 -05:00
[SCSI] libsas: poll for ata device readiness after reset Use ata_wait_after_reset() to poll for link recovery after a reset. This combined with sas_ha->eh_mutex prevents expander rediscovery from probing phys in an intermediate state. Local discovery does not have a mechanism to filter link status changes during this timeout, so it remains the responsibility of lldds to prevent premature port teardown. Although once all lldd's support ->lldd_ata_check_ready() that could be used as a gate to local port teardown. The signature fis is re-transmitted when the link comes back so we should be revalidating the ata device class, but that is left to a future patch. Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-11-17 17:59:54 -08:00
[SCSI] libsas: use ->set_dmamode to notify lldds of NCQ parameters sas_discover_sata() notifies lldds of sata devices twice. Once to allow the 'identify' to be sent, and a second time to allow aic94xx (the only libsas driver that cares about sata_dev.identify) to setup NCQ parameters before the device becomes known to the midlayer. Replace this double notification and intervening 'identify' with an explicit ->lldd_ata_set_dmamode notification. With this change all ata internal commands are issued by libata, so we no longer need sas_issue_ata_cmd(). The data from the identify command only needs to be cached in one location so ata_device.id replaces domain_device.sata_dev.identify. Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-11-17 17:59:52 -08:00
[SCSI] aic94xx: new driver 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>
2006-08-29 09:22:51 -05:00
[SCSI] aci94xx: implement link rate setting 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>
2006-09-06 19:28:07 -05:00
[SCSI] libsas: sgpio write support Add SFF-8485 v0.7 / SAS-1 smp-write-gpio register support to libsas. Defer SAS-2 support unless/until it defines an sgpio interface. Minimum implementation needed to get the lights blinking. try_test_sas_gpio_gp_bit() provides a common method to parse the incoming write data (raw bitstream), and the to_sas_gpio_gp_bit() helper routine can be used as a basis for the set/clear operations for the 'read' implementation. Host implementations parse as many bits (ODx.[012]) as are locally supported and report the number of registers successfully written. If the submitted data overruns the internal number of registers available report the write as a success with the number of bytes remaining reported in ->resid_len. Example (assuming an active backplane) set the "identify" pattern for the first 21 devices: smp_write_gpio --count=2 --data=92,49,24,92,24,92,49,24 -t 4 --index=1 /dev/bsg/sas_hostX Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-09-01 21:18:20 -07:00
[SCSI] aic94xx: new driver 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>
2006-08-29 09:22:51 -05:00
[SCSI] libsas: suspend / resume support libsas power management routines to suspend and recover the sas domain based on a model where the lldd is allowed and expected to be "forgetful". sas_suspend_ha - disable event processing allowing the lldd to take down links without concern for causing hotplug events. Regardless of whether the lldd actually posts link down messages libsas notifies the lldd that all domain_devices are gone. sas_prep_resume_ha - on the way back up before the lldd starts link training clean out any spurious events that were generated on the way down, and re-enable event processing sas_resume_ha - after the lldd has started and decided that all phys have posted link-up events this routine is called to let libsas start it's own timeout of any phys that did not resume. After the timeout an lldd can cancel the phy teardown by posting a link-up event. Storage for ex_change_count (u16) and phy_change_count (u8) are changed to int so they can be set to -1 to indicate 'invalidated'. Signed-off-by: Dan Williams <dan.j.williams@intel.com> Reviewed-by: Jacek Danecki <jacek.danecki@intel.com> Tested-by: Maciej Patelczyk <maciej.patelczyk@intel.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-06-21 23:41:51 -07:00
[SCSI] aic94xx: new driver 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>
2006-08-29 09:22:51 -05:00
[SCSI] libsas: Add a sysfs knob to enable/disable a phy This patch lets a user arbitrarily enable or disable a phy via sysfs. Potential applications include shutting down a phy to replace one lane of wide port, and (more importantly) providing a method for the libata SATL to control the phy. Signed-off-by: Darrick J. Wong <djwong@us.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-01-11 14:14:57 -08:00
[PATCH] aic94xx: handle REQ_DEVICE_RESET 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>
2006-11-07 17:28:55 -08:00
SCSI host lock push-down Move the mid-layer's ->queuecommand() invocation from being locked with the host lock to being unlocked to facilitate speeding up the critical path for drivers who don't need this lock taken anyway. The patch below presents a simple SCSI host lock push-down as an equivalent transformation. No locking or other behavior should change with this patch. All existing bugs and locking orders are preserved. Additionally, add one parameter to queuecommand, struct Scsi_Host * and remove one parameter from queuecommand, void (*done)(struct scsi_cmnd *) Scsi_Host* is a convenient pointer that most host drivers need anyway, and 'done' is redundant to struct scsi_cmnd->scsi_done. Minimal code disturbance was attempted with this change. Most drivers needed only two one-line modifications for their host lock push-down. Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Acked-by: James Bottomley <James.Bottomley@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-11-16 02:10:29 -05:00
[SCSI] aic94xx: new driver 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>
2006-08-29 09:22:51 -05:00
scsi: drop reason argument from ->change_queue_depth Drop the now unused reason argument from the ->change_queue_depth method. Also add a return value to scsi_adjust_queue_depth, and rename it to scsi_change_queue_depth now that it can be used as the default ->change_queue_depth implementation. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Mike Christie <michaelc@cs.wisc.edu> Reviewed-by: Hannes Reinecke <hare@suse.de>
2014-11-13 15:08:42 +01:00
[SCSI] aic94xx: new driver 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>
2006-08-29 09:22:51 -05:00
[SCSI] libsas: mark all domain devices gone if root port disappears If the top level expander is hot removed, mark all child devices as gone before unregistration to short circuit futile recovery. Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-01-10 14:39:13 -08:00
[SCSI] aic94xx: new driver 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>
2006-08-29 09:22:51 -05:00
[SCSI] libsas: fix port->dev_list locking port->dev_list maintains a list of devices attached to a given sas root port. It needs to be mutated under a lock as contexts outside of the single-threaded-libsas-workqueue access the list via sas_find_dev_by_rphy(). Fixup locations where the list was being mutated without a lock. This is a follow-up to commit 5911e963 "[SCSI] libsas: remove expander from dev list on error", where Luben noted [1]: > 2/ We have unlocked list manipulations in sas_ex_discover_end_dev(), > sas_unregister_common_dev(), and sas_ex_discover_end_dev() Yes, I can see that and that is very unfortunate. [1]: http://marc.info/?l=linux-scsi&m=131480962006471&w=2 Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-09-21 22:05:34 -07:00
[SCSI] aic94xx: new driver 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>
2006-08-29 09:22:51 -05:00
[SCSI] libsas: Delay issuing ABORT TASK TMF until the error handler sas_task_abort() should simply abort the upper-level SCSI command and wait until the error handler to send the actual ABORT TASK command. By deferring things to the EH we simplify the concurrency coordination and eliminate some race conditions. Note that sas_task_abort has a few hooks to handle libsas internal commands properly too. Also rename do_sas_task_abort to __sas_task_abort just in case we really want to abort the task *right now* and we don't have a scsi_cmnd attached to the command. This is a hook for libata internal commands to abort. Signed-off-by: Darrick J. Wong <djwong@us.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-01-11 14:15:20 -08:00
[SCSI] libsas: add sas_eh_abort_handler When recovering failed eh-cmnds let the lldd attempt an abort via scsi_abort_eh_cmnd before escalating. Reviewed-by: Jacek Danecki <jacek.danecki@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-06-21 23:30:53 -07:00
[SCSI] libsas: Handle SCSI commands that complete with failure codes This patch moves the code that handles SAS failures out of the main EH function and into a separate function. It also detects commands that have no sas_task (i.e. they completed, but with error data) and sends them into scsi_error for processing. This allows us to handle SCSI errors (and enables auto-spinup as a side effect) instead of dropping them on the floor and falling into an infinite loop. It also requires the implementation of a device reset function, which the SAS failure code has been modified to employ for REQ_DEVICE_RESET. Signed-off-by: Darrick J. Wong <djwong@us.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-01-26 14:08:52 -08:00
scsi: libsas: move bus_reset_handler() to target_reset_handler() The bus reset handler is calling I_T Nexus reset, which logically is a target reset as it need to specify both the initiator and the target. So move it to target reset. Signed-off-by: Hannes Reinecke <hare@suse.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-25 13:57:02 +02:00
[SCSI] libsas: add sas_abort_task 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>
2006-10-30 15:18:50 -08:00
[SCSI] Add SATA support to libsas Hook the scsi_host_template functions in libsas to delegate functionality to libata when appropriate. Signed-off-by: Darrick J. Wong <djwong@us.ibm.com> Misc code changes and merge fixes and update for libata->drivers/ata move Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-08-10 19:19:47 -07:00
[SCSI] libsas: introduce sas_drain_work() When an lldd invokes ->notify_port_event() it can trigger a chain of libsas events to: 1/ form the port and find the direct attached device 2/ if the attached device is an expander perform domain discovery A call to flush_workqueue() will only flush the initial port formation work. Currently libsas users need to call scsi_flush_work() up to the max depth of chain (which will grow from 2 to 3 when ata discovery is moved to its own discovery event). Instead of open coding multiple calls switch to use drain_workqueue() to flush sas work. drain_workqueue() does not handle new work submitted during the drain so libsas needs a bit of infrastructure to hold off unchained work submissions while a drain is in flight. A lldd ->notify() event is considered 'unchained' while a sas_discover_event() is 'chained'. As Tejun notes: "For now, I think it would be best to add private wrapper in libsas to support deferring unchained work items while draining." Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-12-19 16:42:34 -08:00
[SCSI] Add SATA support to libsas Hook the scsi_host_template functions in libsas to delegate functionality to libata when appropriate. Signed-off-by: Darrick J. Wong <djwong@us.ibm.com> Misc code changes and merge fixes and update for libata->drivers/ata move Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-08-10 19:19:47 -07:00
[SCSI] libsas: abstract STP task status into a function Break out the frame processor for STP tasks from aic94xx so they can be shared by other SAS HBA's Original patch from Jeff Garzik <jeff@garzik.org> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-18 10:47:01 -06:00
[SCSI] libsas: fix sas_find_local_phy(), take phy references In the direct-attached case this routine returns the phy on which this device was first discovered. Which is broken if we want to support wide-targets, as this phy reference can become stale even though the port is still active. In the expander-attached case this routine tries to lookup the phy by scanning the attached sas addresses of the parent expander, and BUG_ONs if it can't find it. However since eh and the libsas workqueue run independently we can still be attempting device recovery via eh after libsas has recorded the device as detached. This is even easier to hit now that eh is blocked while device domain rediscovery takes place, and that libata is fed more timed out commands increasing the chances that it will try to recover the ata device. Arrange for dev->phy to always point to a last known good phy, it may be stale after the port is torn down, but it will catch up for wide port reconfigurations, and never be NULL. Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-12-21 21:33:17 -08:00
[SCSI] libsas: abstract STP task status into a function Break out the frame processor for STP tasks from aic94xx so they can be shared by other SAS HBA's Original patch from Jeff Garzik <jeff@garzik.org> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-18 10:47:01 -06:00
[SCSI] libsas: Provide a transport-level facility to request SAS addrs Provide a facility to use the request_firmware() interface to get a SAS address from userspace. This can be used by SAS LLDDs that cannot obtain the address from the host adapter. Signed-off-by: Darrick J. Wong <djwong@us.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-02-19 10:49:40 -08:00
[SCSI] aic94xx: new driver 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>
2006-08-29 09:22:51 -05:00