linux-toradex.git/drivers/scsi/ipr.c, branch v3.18.13

ipr: wait for aborted command responses

2015-01-30T01:40:44+00:00

commit 6cdb08172bc89f0a39e1643c5e7eab362692fd1b upstream.

Fixes a race condition in abort handling that was injected
when multiple interrupt support was added. When only a single
interrupt is present, the adapter guarantees it will send
responses for aborted commands prior to the response for the
abort command itself. With multiple interrupts, these responses
generally come back on different interrupts, so we need to
ensure the abort thread waits until the aborted command is
complete so we don't perform a double completion. This race
condition was being hit frequently in environments which
were triggering command timeouts, which was resulting in
a double completion causing a kernel oops.

Signed-off-by: Brian King 
Reviewed-by: Wendy Xiong 
Tested-by: Wendy Xiong 
Signed-off-by: Christoph Hellwig 
Signed-off-by: Greg Kroah-Hartman

ipr: don't log error messages when applications issues illegal requests

2014-09-25T12:23:18+00:00

Failing Device information are logged when IOA firmware detected these
illegal request such as IOA firmware doesn't support inquiry with page
code 2. The patch fixes the issue.

Signed-off-by: Brian King 
Tested-by: Wen Xiong 
Signed-off-by: Christoph Hellwig

Merge branch 'for-3.15/core' of git://git.kernel.dk/linux-block

2014-04-02T02:19:15+00:00

Pull core block layer updates from Jens Axboe:
 "This is the pull request for the core block IO bits for the 3.15
  kernel.  It's a smaller round this time, it contains:

   - Various little blk-mq fixes and additions from Christoph and
     myself.

   - Cleanup of the IPI usage from the block layer, and associated
     helper code.  From Frederic Weisbecker and Jan Kara.

   - Duplicate code cleanup in bio-integrity from Gu Zheng.  This will
     give you a merge conflict, but that should be easy to resolve.

   - blk-mq notify spinlock fix for RT from Mike Galbraith.

   - A blktrace partial accounting bug fix from Roman Pen.

   - Missing REQ_SYNC detection fix for blk-mq from Shaohua Li"

* 'for-3.15/core' of git://git.kernel.dk/linux-block: (25 commits)
  blk-mq: add REQ_SYNC early
  rt,blk,mq: Make blk_mq_cpu_notify_lock a raw spinlock
  blk-mq: support partial I/O completions
  blk-mq: merge blk_mq_insert_request and blk_mq_run_request
  blk-mq: remove blk_mq_alloc_rq
  blk-mq: don't dump CPU -> hw queue map on driver load
  blk-mq: fix wrong usage of hctx->state vs hctx->flags
  blk-mq: allow blk_mq_init_commands() to return failure
  block: remove old blk_iopoll_enabled variable
  blktrace: fix accounting of partially completed requests
  smp: Rename __smp_call_function_single() to smp_call_function_single_async()
  smp: Remove wait argument from __smp_call_function_single()
  watchdog: Simplify a little the IPI call
  smp: Move __smp_call_function_single() below its safe version
  smp: Consolidate the various smp_call_function_single() declensions
  smp: Teach __smp_call_function_single() to check for offline cpus
  smp: Remove unused list_head from csd
  smp: Iterate functions through llist_for_each_entry_safe()
  block: Stop abusing rq->csd.list in blk-softirq
  block: Remove useless IPI struct initialization
  ...

[SCSI] ipr: Add new CCIN definition for Grand Canyon support

2014-03-19T22:04:42+00:00

Add the appropriate definition and table entry for new hardware support.

Signed-off-by: Wen Xiong 
Acked-by: Brian King 
Signed-off-by: James Bottomley

[SCSI] ipr: Format HCAM overlay ID 0x21

2014-03-19T22:04:42+00:00

This patch adds formatting error overlay 0x21 to improve debug capabilities.

[jejb: checkpatch fixes]
Signed-off-by: Wen Xiong 
Acked-by: Brian King 
Signed-off-by: James Bottomley

[SCSI] ipr: Use pci_enable_msi_range() and pci_enable_msix_range()

2014-03-19T22:04:41+00:00

As result deprecation of MSI-X/MSI enablement functions
pci_enable_msix() and pci_enable_msi_block() all drivers
using these two interfaces need to be updated to use the
new pci_enable_msi_range() and pci_enable_msix_range()
interfaces.

Signed-off-by: Alexander Gordeev 
Signed-off-by: Wen Xiong 
Acked-by: Brian King 
Signed-off-by: James Bottomley

[SCSI] ipr: Get rid of superfluous call to pci_disbale_msi/msix()

2014-03-19T22:04:40+00:00

There is no need to call pci_disable_msi() or pci_disable_msix()
in case the call to pci_enable_msi() or pci_enable_msix() failed.

Signed-off-by: Alexander Gordeev 
Signed-off-by: Wen Xiong 
Acked-by: Brian King 
Signed-off-by: James Bottomley

[SCSI] ipr: Handle early EEH

2014-03-19T22:04:39+00:00

If, when the ipr driver loads, the adapter is in an EEH error state,
it will currently oops and not be able to recover, as it attempts
to access memory that has not yet been allocated. We've seen this
occur in some kexec scenarios. The following patch fixes the oops
and also allows the driver to recover from these probe time EEH errors.

[jejb: checkpatch fix]
Signed-off-by: Wen Xiong 
Signed-off-by: Brian King 
Signed-off-by: James Bottomley

[SCSI] ipr: Add new CCIN definition for new hardware support

2014-03-19T22:04:39+00:00

Add the appropriate definition and table entry for new hardware support.

Signed-off-by: Wen Xiong 
Acked-by: Brian King 
Signed-off-by: James Bottomley

[SCSI] ipr: Remove extended delay bit on GSCSI reads/writes ops

2014-03-19T22:04:38+00:00

This patch removes extended delay bit on GSCSI reads/writes ops, the
performance will be significanly better.

Signed-off-by: Wen Xiong 
Acked-by: Brian King 
Signed-off-by: James Bottomley