linux-toradex.git/drivers/scsi/ibmvscsi, branch v3.10.78

ibmvscsi: Add memory barriers for send / receive

2014-07-09T18:13:59+00:00

commit 7114aae02742d6b5c5a0d39a41deb61d415d3717 upstream.

Add a memory barrier prior to sending a new command to the VIOS
to ensure the VIOS does not receive stale data in the command buffer.
Also add a memory barrier when processing the CRQ for completed commands.

Signed-off-by: Brian King 
Acked-by: Nathan Fontenot 
Signed-off-by: Christoph Hellwig 
Signed-off-by: Greg Kroah-Hartman

ibmvscsi: Abort init sequence during error recovery

2014-07-09T18:13:59+00:00

commit 9ee755974bea2f9880e517ec985dc9dede1b3a36 upstream.

If a CRQ reset is triggered for some reason while in the middle
of performing VSCSI adapter initialization, we don't want to
call the done function for the initialization MAD commands as
this will only result in two threads attempting initialization
at the same time, resulting in failures.

Signed-off-by: Brian King 
Acked-by: Nathan Fontenot 
Signed-off-by: Christoph Hellwig 
Signed-off-by: Greg Kroah-Hartman

[SCSI] ibmvfc: Driver version 1.0.11

2013-05-02T18:58:18+00:00

Signed-off-by: Brian King 
Acked-by: Robert Jennings 
Signed-off-by: James Bottomley

[SCSI] ibmvfc: Suppress ABTS if target gone

2013-05-02T18:57:51+00:00

Adds support for a new VIOS feature that allows ibmvfc to
optimize terminate_rport_io by telling the VIOS the target
is no longer accessible on the fabric and that it should
not send an ABTS out on the fabric to the device.

Signed-off-by: Brian King 
Acked-by: Robert Jennings 
Signed-off-by: James Bottomley

[SCSI] ibmvfc: Send cancel when link is down

2013-05-02T18:57:24+00:00

If attempting to abort requests due to a fail fail timeout
or error handling while the link is down, we cannot send
an abort out on the fabric. We can, however, send a cancel
to the VIOS. This fixes ibmvfc to send a cancel in this
case to prevent error handling from failing and/or
escalating.

Signed-off-by: Brian King 
Acked-by: Robert Jennings 
Signed-off-by: James Bottomley

[SCSI] ibmvfc: Support FAST_IO_FAIL in EH handlers

2013-05-02T18:55:14+00:00

Adds support for receiving FAST_IO_FAIL from fc_block_scsi_eh
when in error recovery. This fixes cases of devices being
taken offline when they are no longer accessible on the fabric,
preventing them from coming back online when the fabric recovers.

Signed-off-by: Brian King 
Acked-by: Robert Jennings 
Signed-off-by: James Bottomley

[SCSI] ibmvfc: Properly set cancel flags when cancelling abort

2013-05-02T18:50:23+00:00

The flags on a cancel operation are intended to indicate what,
if any, TMF will follow the cancel request. This fixes a case
where we were incorrectly setting the abort task set flag on
the cancel flag when we were cancelling an abort task set.

Signed-off-by: Brian King 
Acked-by: Robert Jennings 
Signed-off-by: James Bottomley

[SCSI] ibmvscsi: Fix slave_configure deadlock

2013-04-06T10:35:51+00:00

No locks should be held when calling scsi_adjust_queue_depth
so drop the lock in slave_configure prior to calling it.

Signed-off-by: Brian King 
Acked-by: Robert Jennings 
Signed-off-by: James Bottomley

Drivers: scsi: remove __dev* attributes.

2013-01-03T23:57:01+00:00

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 
Cc: Adam Radford 
Cc: "James E.J. Bottomley" 
Signed-off-by: Greg Kroah-Hartman

[SCSI] ibmvscsi: Fix host config length field overflow

2012-09-24T08:11:09+00:00

The length field in the host config packet is only 16-bit long, so
passing it 0x10000 (64K which is our standard PAGE_SIZE) doesn't
work and result in an empty config from the server.

Signed-off-by: Benjamin Herrenschmidt 
Cc: 
Acked-by: Robert Jennings 
Signed-off-by: James Bottomley