linux-stable.git/drivers/scsi, branch v3.14.49

qla2xxx: Mark port lost when we receive an RSCN for it.

2015-08-03T16:29:59+00:00

commit ef86cb2059a14b4024c7320999ee58e938873032 upstream.

Signed-off-by: Chad Dupuis 
Signed-off-by: Saurav Kashyap 
Signed-off-by: Christoph Hellwig 
Cc: Himanshu Madhani 
Signed-off-by: Greg Kroah-Hartman

scsi_transport_srp: Fix a race condition

2015-08-03T16:29:51+00:00

commit 535fb906225fb7436cb658144d0c0cea14a26f3e upstream.

Avoid that srp_terminate_io() can get invoked while srp_queuecommand()
is in progress. This patch avoids that an I/O timeout can trigger the
following kernel warning:

WARNING: at drivers/infiniband/ulp/srp/ib_srp.c:1447 srp_terminate_io+0xef/0x100 [ib_srp]()
Call Trace:
 [] dump_stack+0x4e/0x68
 [] warn_slowpath_common+0x81/0xa0
 [] warn_slowpath_null+0x1a/0x20
 [] srp_terminate_io+0xef/0x100 [ib_srp]
 [] __rport_fail_io_fast+0xba/0xc0 [scsi_transport_srp]
 [] rport_fast_io_fail_timedout+0xe0/0xf0 [scsi_transport_srp]
 [] process_one_work+0x1db/0x780
 [] worker_thread+0x11b/0x450
 [] kthread+0xe4/0x100
 [] ret_from_fork+0x7c/0xb0

See also patch "scsi_transport_srp: Add transport layer error
handling" (commit ID 29c17324803c).

Signed-off-by: Bart Van Assche 
Cc: James Bottomley 
Cc: Sagi Grimberg 
Cc: Sebastian Parschauer 
Signed-off-by: Doug Ledford 
Signed-off-by: Greg Kroah-Hartman

scsi_transport_srp: Introduce srp_wait_for_queuecommand()

2015-08-03T16:29:51+00:00

commit be34c62ddf39d1931780b07a6f4241393e4ba2ee upstream.

Introduce the helper function srp_wait_for_queuecommand().
Move the definition of scsi_request_fn_active(). Add a comment
above srp_wait_for_queuecommand() that support for scsi-mq needs
to be added.

This patch does not change any functionality. A second call to
srp_wait_for_queuecommand() will be introduced in the next patch.

Signed-off-by: Bart Van Assche 
Cc: James Bottomley 
Cc: Sagi Grimberg 
Cc: Sebastian Parschauer 
Signed-off-by: Doug Ledford 
Signed-off-by: Greg Kroah-Hartman

ipr: Increase default adapter init stage change timeout

2015-08-03T16:29:50+00:00

commit 45c44b5ff9caa743ed9c2bfd44307c536c9caf1e upstream.

Increase the default init stage change timeout from 15 seconds to 30 seconds.
This resolves issues we have seen with some adapters not transitioning
to the first init stage within 15 seconds, which results in adapter
initialization failures.

Signed-off-by: Brian King 
Signed-off-by: James Bottomley 
Signed-off-by: Greg Kroah-Hartman

hpsa: add missing pci_set_master in kdump path

2015-07-04T02:49:05+00:00

commit 859c75aba20264d87dd026bab0d0ca3bff385955 upstream.

Add a call to pci_set_master(...)  missing in the previous
patch "hpsa: refine the pci enable/disable handling".
Found thanks to Rob Elliot.

Signed-off-by: Tomas Henzl 
Reviewed-by: Robert Elliott 
Tested-by: Robert Elliott 
Signed-off-by: Christoph Hellwig 
Signed-off-by: Greg Kroah-Hartman

hpsa: refine the pci enable/disable handling

2015-07-04T02:49:05+00:00

commit 132aa220b45d60e9b20def1e9d8be9422eed9616 upstream.

When a second(kdump) kernel starts and the hard reset method is used
the driver calls pci_disable_device without previously enabling it,
so the kernel shows a warning -
[   16.876248] WARNING: at drivers/pci/pci.c:1431 pci_disable_device+0x84/0x90()
[   16.882686] Device hpsa
disabling already-disabled device
...
This patch fixes it, in addition to this I tried to balance also some other pairs
of enable/disable device in the driver.
Unfortunately I wasn't able to verify the functionality for the case of a sw reset,
because of a lack of proper hw.

Signed-off-by: Tomas Henzl 
Reviewed-by: Stephen M. Cameron 
Signed-off-by: Christoph Hellwig 
Signed-off-by: Greg Kroah-Hartman

lpfc: Add iotag memory barrier

2015-06-29T19:25:37+00:00

commit 27f344eb15dd0da80ebec80c7245e8c85043f841 upstream.

Add a memory barrier to ensure the valid bit is read before
any of the cqe payload is read. This fixes an issue seen
on Power where the cqe payload was getting loaded before
the valid bit. When this occurred, we saw an iotag out of
range error when a command completed, but since the iotag
looked invalid the command didn't get completed to scsi core.
Later we hit the command timeout, attempted to abort the command,
then waited for the aborted command to get returned. Since the
adapter already returned the command, we timeout waiting,
and end up escalating EEH all the way to host reset. This
patch fixes this issue.

Signed-off-by: Brian King 
Signed-off-by: James Smart 
Signed-off-by: Christoph Hellwig 
Signed-off-by: Greg Kroah-Hartman

sd: Disable support for 256 byte/sector disks

2015-06-06T15:19:39+00:00

commit 74856fbf441929918c49ff262ace9835048e4e6a upstream.

256 bytes per sector support has been broken since 2.6.X,
and no-one stepped up to fix this.
So disable support for it.

Signed-off-by: Mark Hounschell 
Signed-off-by: Hannes Reinecke 
Signed-off-by: James Bottomley 
Signed-off-by: Greg Kroah-Hartman

storvsc: Set the SRB flags correctly when no data transfer is needed

2015-06-06T15:19:39+00:00

commit dc45708ca9988656d706940df5fd102672c5de92 upstream.

Set the SRB flags correctly when there is no data transfer.  Without this
change some IHV drivers will fail valid commands such as TEST_UNIT_READY.

Signed-off-by: K. Y. Srinivasan 
Reviewed-by: Long Li 
Signed-off-by: James Bottomley 
Signed-off-by: Greg Kroah-Hartman

qla2xxx: remove redundant declaration in 'qla_gbl.h'

2015-06-06T15:19:31+00:00

commit 9493c2422cae272d6f1f567cbb424195defe4176 upstream.

Remove 2 redundant extern inline functions: qla8044_set_qsnt_ready() and
qla8044_need_reset_handler(). At present, within upstream next kernel
source code, they are only used within "drivers/scsi/qla2xxx/qla_nx2.c".

The related error and warnings (with allmodconfig under tile):

    CC [M]  drivers/scsi/qla2xxx/qla_nx2.o
  drivers/scsi/qla2xxx/qla_nx2.c:1633:1: error: static declaration of 'qla8044_need_reset_handler' follows non-static declaration
   qla8044_need_reset_handler(struct scsi_qla_host *vha)
   ^
  In file included from drivers/scsi/qla2xxx/qla_def.h:3706:0,
                   from drivers/scsi/qla2xxx/qla_nx2.c:11:
  drivers/scsi/qla2xxx/qla_gbl.h:756:20: note: previous declaration of 'qla8044_need_reset_handler' was here
   extern inline void qla8044_need_reset_handler(struct scsi_qla_host *vha);
                      ^
  drivers/scsi/qla2xxx/qla_gbl.h:756:20: warning: inline function 'qla8044_need_reset_handler' declared but never defined
  make[3]: *** [drivers/scsi/qla2xxx/qla_nx2.o] Error 1
  make[2]: *** [drivers/scsi/qla2xxx] Error 2
  make[1]: *** [drivers/scsi] Error 2
  make: *** [drivers] Error 2

    CC [M]  drivers/scsi/qla2xxx/qla_tmpl.o
  In file included from drivers/scsi/qla2xxx/qla_def.h:3706:0,
                   from drivers/scsi/qla2xxx/qla_tmpl.c:7:
  drivers/scsi/qla2xxx/qla_gbl.h:755:20: warning: inline function 'qla8044_set_qsnt_ready' declared but never defined
   extern inline void qla8044_set_qsnt_ready(struct scsi_qla_host *vha);
                    ^

Signed-off-by: Chen Gang 
Acked-by: Saurav Kashyap 
Signed-off-by: Christoph Hellwig 
Signed-off-by: Greg Kroah-Hartman