Commit Graph

32 Commits

Author SHA1 Message Date
Greg Kroah-Hartman 6f03979051 Drivers: scsi: remove __dev* attributes.
CONFIG_HOTPLUG is going away as an option.  As a result, the __dev*
markings need to be removed.

This change removes the use of __devinit, __devexit_p, __devinitdata,
__devinitconst, and __devexit from these drivers.

Based on patches originally written by Bill Pemberton, but redone by me
in order to handle some of the coding style issues better, by hand.

Cc: Bill Pemberton <wfp5p@virginia.edu>
Cc: Adam Radford <linuxraid@lsi.com>
Cc: "James E.J. Bottomley" <JBottomley@parallels.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-03 15:57:01 -08:00
Jianpeng Ma 95ab000388 [SCSI] mvsas: Fix oops when ata commond timeout.
Kernel message follows:

[  511.712011] sd 11:0:0:0: [sdf] command ffff8800a4e81400 timed out
[  511.712022] sas: Enter sas_scsi_recover_host busy: 1 failed: 1
[  511.712024] sas: trying to find task 0xffff8800a4d24c80
[  511.712026] sas: sas_scsi_find_task: aborting task 0xffff8800a4d24c80
[  511.712029] drivers/scsi/mvsas/mv_sas.c 1631:mvs_abort_task()
mvi=ffff8800b5300000 task=ffff8800a4d24c80 slot=ffff8800b5325038
slot_idx=x0
[  511.712035] BUG: unable to handle kernel NULL pointer dereference at
0000000000000058
[  511.712040] IP: [<ffffffff815f8c0c>] _raw_spin_lock_irqsave+0xc/0x30
[  511.712047] PGD 0
[  511.712049] Oops: 0002 [#1] SMP
[  511.712052] Modules linked in: mvsas libsas scsi_transport_sas
raid456 async_pq async_xor xor async_memcpy async_raid6_recov raid6_pq
async_tx [last unloaded: mvsas]
[  511.712062] CPU 3
[  511.712066] Pid: 7322, comm: scsi_eh_11 Not tainted 3.5.0+ #106 To Be
Filled By O.E.M. To Be Filled By O.E.M./To be filled by O.E.M.
[  511.712068] RIP: 0010:[<ffffffff815f8c0c>]  [<ffffffff815f8c0c>]
_raw_spin_lock_irqsave+0xc/0x30
[  511.712073] RSP: 0018:ffff880098d3bcb0  EFLAGS: 00010086
[  511.712074] RAX: 0000000000000286 RBX: 0000000000000058 RCX:
00000000000000c3
[  511.712076] RDX: 0000000000000100 RSI: 0000000000000046 RDI:
0000000000000058
[  511.712078] RBP: ffff880098d3bcb0 R08: 000000000000000a R09:
0000000000000000
[  511.712080] R10: 00000000000004e8 R11: 00000000000004e7 R12:
ffff8800a4d24c80
[  511.712082] R13: 0000000000000050 R14: ffff8800b5325038 R15:
ffff8800a4eafe00
[  511.712084] FS:  0000000000000000(0000) GS:ffff8800bdb80000(0000)
knlGS:0000000000000000
[  511.712086] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[  511.712088] CR2: 0000000000000058 CR3: 00000000a4ce6000 CR4:
00000000000407e0
[  511.712090] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
0000000000000000
[  511.712091] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7:
0000000000000400
[  511.712093] Process scsi_eh_11 (pid: 7322, threadinfo
ffff880098d3a000, task ffff8800a61dde40)
[  511.712095] Stack:
[  511.712096]  ffff880098d3bce0 ffffffff81060683 ffff880000000000
0000000000000000
[  511.712099]  ffff8800a4d24c80 ffff8800b5300000 ffff880098d3bcf0
ffffffffa0076a88
[  511.712102]  ffff880098d3bd50 ffffffffa0079bb5 ffff880000000000
ffff880000000018
[  511.712106] Call Trace:
[  511.712110]  [<ffffffff81060683>] complete+0x23/0x60
[  511.712115]  [<ffffffffa0076a88>] mvs_tmf_timedout+0x18/0x20 [mvsas]
[  511.712119]  [<ffffffffa0079bb5>] mvs_slot_complete+0x765/0x7d0
[mvsas]
[  511.712125]  [<ffffffffa005a17d>] sas_scsi_recover_host+0x55d/0xdb0
[libsas]
[  511.712128]  [<ffffffff8106d600>] ? idle_balance+0xe0/0x130
[  511.712133]  [<ffffffff813b150c>] scsi_error_handler+0xcc/0x470
[  511.712136]  [<ffffffff815f7ad0>] ? __schedule+0x370/0x730
[  511.712139]  [<ffffffff8105f728>] ? __wake_up_common+0x58/0x90
[  511.712142]  [<ffffffff813b1440>] ? scsi_eh_get_sense+0x110/0x110
[  511.712146]  [<ffffffff810571be>] kthread+0x8e/0xa0
[  511.712150]  [<ffffffff816015f4>] kernel_thread_helper+0x4/0x10
[  511.712153]  [<ffffffff81057130>] ? flush_kthread_work+0x120/0x120
[  511.712156]  [<ffffffff816015f0>] ? gs_change+0xb/0xb
[  511.712157] Code: 8a 00 01 00 00 89 d0 f0 66 0f b1 0f 66 39 d0 0f 94
c0 0f b6 c0 5d c3 0f 1f 84 00 00 00 00 00 55 48 89 e5 9c 58 fa ba 00 01
00 00 <f0> 66 0f c1 17 0f b6 ce 38 d1 74 11 0f 1f 84 00 00 00 00 00 f3
[  511.712191] RIP  [<ffffffff815f8c0c>] _raw_spin_lock_irqsave+0xc/0x30
[  511.712194]  RSP <ffff880098d3bcb0>
[  511.712196] CR2: 0000000000000058
[  511.712198] ---[ end trace a781c7b1e65db92c ]---

Signed-off-by: Jianpeng Ma <majianpeng@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-09-14 14:48:32 +01:00
Dan Carpenter cca85013ef [SCSI] mvsas: remove unused variable in mvs_task_exec()
We don't use "dev" any more after 07ec747a5f ("libsas: remove
ata_port.lock management duties from lldds") and it causes a compile
warning.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Xiangliang Yu <yuxiangl@marvell.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-07-20 08:58:54 +01:00
Dan Williams f0bf750c2d [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>
2012-07-20 08:58:54 +01:00
Linus Torvalds 424a6f6ef9 SCSI updates on 20120319
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6

SCSI updates from James Bottomley:
 "The update includes the usual assortment of driver updates (lpfc,
  qla2xxx, qla4xxx, bfa, bnx2fc, bnx2i, isci, fcoe, hpsa) plus a huge
  amount of infrastructure work in the SAS library and transport class
  as well as an iSCSI update.  There's also a new SCSI based virtio
  driver."

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (177 commits)
  [SCSI] qla4xxx: Update driver version to 5.02.00-k15
  [SCSI] qla4xxx: trivial cleanup
  [SCSI] qla4xxx: Fix sparse warning
  [SCSI] qla4xxx: Add support for multiple session per host.
  [SCSI] qla4xxx: Export CHAP index as sysfs attribute
  [SCSI] scsi_transport: Export CHAP index as sysfs attribute
  [SCSI] qla4xxx: Add support to display CHAP list and delete CHAP entry
  [SCSI] iscsi_transport: Add support to display CHAP list and delete CHAP entry
  [SCSI] pm8001: fix endian issue with code optimization.
  [SCSI] pm8001: Fix possible racing condition.
  [SCSI] pm8001: Fix bogus interrupt state flag issue.
  [SCSI] ipr: update PCI ID definitions for new adapters
  [SCSI] qla2xxx: handle default case in qla2x00_request_firmware()
  [SCSI] isci: improvements in driver unloading routine
  [SCSI] isci: improve phy event warnings
  [SCSI] isci: debug, provide state-enum-to-string conversions
  [SCSI] scsi_transport_sas: 'enable' phys on reset
  [SCSI] libsas: don't recover end devices attached to disabled phys
  [SCSI] libsas: fixup target_port_protocols for expanders that don't report sata
  [SCSI] libsas: set attached device type and target protocols for local phys
  ...
2012-03-22 12:55:29 -07:00
Cong Wang 77dfce076c scsi: remove the second argument of k[un]map_atomic()
Signed-off-by: Cong Wang <amwang@redhat.com>
2012-03-20 21:48:19 +08:00
Dan Williams f41a0c441c [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>
2012-02-29 13:01:06 -06:00
Dan Williams 312d3e5611 [SCSI] libsas: remove ata_port.lock management duties from lldds
Each libsas driver (mvsas, pm8001, and isci) has invented a different
method for managing the ap->lock.  The lock is held by the ata
->queuecommand() path.  mvsas drops it prior to acquiring any internal
locks which allows it to hold its internal lock across calls to
task->task_done().  This capability is important as it is the only way
the driver can flush task->task_done() instances to guarantee that it no
longer has any in-flight references to a domain_device at
->lldd_dev_gone() time.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-02-19 13:50:12 -06:00
Dan Williams b1124cd3ec [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>
2012-02-19 13:48:51 -06:00
Dan Williams ac013ed1cb [SCSI] isci: export phy events via ->lldd_control_phy()
Allow the sas-transport-class to update events for local phys via a new
PHY_FUNC_GET_EVENTS command to ->lldd_control_phy().  Fixup drivers that
are not prepared for new enum phy_func values, and unify
->lldd_control_phy() error codes.

These are the SAS defined phy events that are reported in a
smp-report-phy-error-log command:
 * /sys/class/sas_phy/<phyX>/invalid_dword_count
 * /sys/class/sas_phy/<phyX>/running_disparity_error_count
 * /sys/class/sas_phy/<phyX>/loss_of_dword_sync_count
 * /sys/class/sas_phy/<phyX>/phy_reset_problem_count

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-10-02 13:24:26 -05:00
Xiangliang Yu 477f6d190b [SCSI] mvsas: fixed some disk spin up issue
spin up issue: some direct attached SAS device can't spin up

Signed-off-by: Xiangliang Yu <yuxiangl@marvell.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-10-02 13:12:13 -05:00
Xiangliang Yu 6ceae7c623 [SCSI] mvsas: fix expander link error
Expanders fail to link when the phy rates are mismatched.

Signed-off-by: Xiangliang Yu <yuxiangl@marvell.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-10-02 13:09:18 -05:00
Dan Williams e211e2c7b6 [SCSI] mvsas: remove mvs_slave_{alloc|configure}
libsas now handles:
1/ limiting ata scanning to lun0
2/ maximizing the queue_depth of sas devices (up to 256, mvsas only
   supports 64)
3/ changes to /sys/block/<sdX>/device/queue_depth for ata devices

Acked-by: Xiangliang Yu <yuxiangl@marvell.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-10-02 12:39:48 -05:00
Dan Williams 4fcf812ca3 [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>
2011-08-27 08:35:13 -06:00
Xiangliang Yu e144f7ef49 [SCSI] mvsas: update comments
Remove obsolete comments and add new comments

Signed-off-by: Xiangliang Yu <yuxiangl@marvell.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-07-26 10:39:09 +04:00
Xiangliang Yu 84fbd0cea1 [SCSI] mvsas: misc improvements
Change code to match HBA datasheet.
Change code to make it readable.
Add support big endian for mvs_prd_imt.
Add cpu_to_le32 and cpu_to_le64 to use on addr.
Add scan_finished for structure mvs_prv_info.

Signed-off-by: Xiangliang Yu <yuxiangl@marvell.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-07-26 10:38:01 +04:00
Xiangliang Yu a4632aae8b [SCSI] mvsas: Add new macros and functions
Add new macros: MVS_SOFT_RESET, MVS_HARD_RESET, MVS_PHY_TUNE,
	MVS_COMMAND_ACTIVE, EXP_BRCT_CHG, MVS_MAX_SG
Add new member sg_width in struct mvs_chip_info
Use macros rather than magic number
Add new functions: mvs_fill_ssp_resp_iu, mvs_set_sense,
	mvs_94xx_clear_srs_irq, mvs_94xx_phy_set_link_rate

Signed-off-by: Xiangliang Yu <yuxiangl@marvell.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-07-26 10:36:11 +04:00
Xiangliang Yu b89e8f539f [SCSI] mvsas: Remove unused macros, variables and functions
Remove unused macros: VSR_PHY_VS0, VSR_PHY_VS1, MVS_SLOTS,
	MVS_CAN_QUEUE, MVS_MSI, SG_MX, _MV_DUMP, MV_DISABLE_NCQ
Remove unused variables for mvs_info: irq, exp_req, cmd_size
Remove unused functions: mvs_get_sas_addr, mvs_hexdump,
	mvs_hba_sb_dump, mvs_hab_memory_dump, mvs_hba_cq_dump

Signed-off-by: Xiangliang Yu <yuxiangl@marvell.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-07-26 10:35:36 +04:00
Xiangliang Yu 8882f08132 [SCSI] mvsas: fix 94xx hotplug issue
Fix 94xx A0/B0 revision hotplug issue.
Remove unused macro: DISABLE_HOTPLUG_DMA_FIX

Signed-off-by: Xiangliang Yu <yuxiangl@marvell.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-07-26 10:34:13 +04:00
Xiangliang Yu 534ff10104 [SCSI] mvsas: Add support for Non specific NCQ error interrupt
Signed-off-by: Xiangliang Yu <yuxiangl@marvell.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-07-26 10:25:02 +04:00
Xiangliang Yu 0b15fb1fdf [SCSI] mvsas: add support for Task collector mode and fixed relative bugs
1. Add support for Task collector mode.
2. Fixed relative collector mode bug:
   - I/O failed when disks is on two ports
   - system hang when hotplug disk
   - system hang when unplug disk during run IO
3. Unlock ap->lock within .lldd_execute_task for direct mode to
   improve performance

Signed-off-by: Xiangliang Yu <yuxiangl@marvell.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-01 12:08:03 -05:00
James Bottomley df64d3caab [SCSI] Unify SAM_ and SAM_STAT_ macros
We have two separate definitions for identical constants with nearly the
same name.  One comes from the generic headers in scsi.h; the other is
an enum in libsas.h ... it's causing confusion about which one is
correct (fortunately they both are).

Fix this by eliminating the libsas.h duplicate

Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-07-28 09:07:49 -05:00
Jiri Slaby 24ae163ed3 [SCSI] mvsas: fix potential NULL dereference
Stanse found that in mvs_abort_task, mvi_dev is dereferenced earlier
than tested for being NULL. Move the assignment below the test.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-07-27 12:03:53 -05:00
Srinivas 9dc9fd9484 [SCSI] mvsas: fix hot plug handling and IO issues
This patch adds a bunch of fixes

1. Reduce sg table size to 64 (SG_MX) instead of default SG_ALL
2. clear task lists on phy down events
3. release all tasks on port deformation
4. release current task for device gone notification
5. Add sata abort handing
6. Add 10ms delay to each port reset (currently done serially and with
   interrupts disabled)

[jejb: whitespace fixes and clean ups plus added description
       added dummy 94xx_clear_srs_irq function just to prevent the
       mismatch in the mvs_dispatch structure killing 94xx cards]
Signed-off-by: Srinivas <satyasrinivasp@hcl.in>
Cc: Andy Yan <ayan@marvell.com>
Cc: qswang@marvell.com
Cc: jfeng@marvell.com
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-04-11 14:44:01 -05:00
Andy Yan f9da3be5af [SCSI] mvsas: remove all the casts from void * or to void *
Signed-off-by: Ying Chu <jasonchu@marvell.com>
Signed-off-by: Andy Yan <ayan@marvell.com>
Signed-off-by: Ke Wei <kewei@marvell.com
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2009-05-23 15:44:13 -05:00
Andy Yan 9870d9a242 [SCSI] mvsas: performance improvement using domain_device->lldd_dev
Using sticky field to improve retrieve performance by eliminating some
lookups in . Remove some spurious casts.

Signed-off-by: Ying Chu <jasonchu@marvell.com>
Signed-off-by: Andy Yan <ayan@marvell.com>
Signed-off-by: Ke Wei <kewei@marvell.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2009-05-23 15:44:08 -05:00
Andy Yan 0f980a8716 [SCSI] mvsas: bug fix, null pointer may be used
Null pointer check to avoid corruption.

Signed-off-by: Ying Chu <jasonchu@marvell.com>
Signed-off-by: Andy Yan <ayan@marvell.com>
Signed-off-by: Ke Wei <kewei@marvell.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2009-05-23 15:44:08 -05:00
Andy Yan 0b84b7094e [SCSI] mvsas: bug fix of dead lock
TMF task should be issued with Interrupt Disabled, or Deadlock may take place.
Clean-up unused parameters and conditonal lock.

Signed-off-by: Ying Chu <jasonchu@marvell.com>
Signed-off-by: Andy Yan <ayan@marvell.com>
Signed-off-by: Ke Wei <kewei@marvell.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2009-05-23 15:44:07 -05:00
Andy Yan 2b288133ab [SCSI] mvsas: bug fix with setting task management frame type
Correct frame type setting according to parameter.

Signed-off-by: Ying Chu <jasonchu@marvell.com>
Signed-off-by: Andy Yan <ayan@marvell.com>
Signed-off-by: Ke Wei <kewei@marvell.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2009-05-23 15:44:07 -05:00
Andy Yan 20b09c2992 [SCSI] mvsas: add support for 94xx; layout change; bug fixes
This version contains following main changes
  - Switch to new layout to support more types of ASIC.
  - SSP TMF supported and related Error Handing enhanced.
  - Support flash feature with delay 2*HZ when PHY changed.
  - Support Marvell 94xx series ASIC for 6G SAS/SATA, which has 2
88SE64xx chips but any different register description.
  - Support SPI flash for HBA-related configuration info.
  - Other patch enhanced from kernel side such as increasing PHY type

[jejb: fold back in DMA_BIT_MASK changes]
Signed-off-by: Ying Chu <jasonchu@marvell.com>
Signed-off-by: Andy Yan <ayan@marvell.com>
Signed-off-by: Ke Wei <kewei@marvell.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2009-05-20 17:21:12 -05:00
Jeff Garzik dd4969a892 [SCSI] mvsas: split driver into multiple files
Split mvsas driver into multiple source codes, based on the split
and function distribution found in Marvell's mvsas update.

Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2009-05-20 17:21:12 -05:00
Jeff Garzik 2ad52f473b [SCSI] mvsas: move into new directory drivers/scsi/mvsas/
Zero functional changes, just file movement.

This commit prepares for the upcoming integration of the
Marvell-provided driver update that splits the driver into support
for both 64xx and 94xx chip families.

Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2009-05-20 17:21:12 -05:00