linux-stable.git/drivers/scsi/aacraid/src.c, branch linux-4.6.y

aacraid: Fix RRQ overload

2016-02-24T02:27:02+00:00

The driver utilizes an array of atomic variables to keep track of IO
submissions to each vector. To submit an IO multiple threads iterate
through the array to find a vector which has empty slots to send an
IO. The reading and updating of the variable is not atomic, causing race
conditions when a thread uses a full vector to submit an IO.

Fixed by mapping each FIB to a vector, the submission path then uses
said vector to submit IO thereby removing the possibly of a race
condition.The vector assignment is started from 1 since vector 0 is
reserved for the use of AIF management FIBS.If the number of MSIx
vectors is 1 (MSI or INTx mode) then all the fibs are allocated to
vector 0.

Fixes: 495c0217 "aacraid: MSI-x support"
Cc: stable@vger.kernel.org # v4.1

Signed-off-by: Raghava Aditya Renukunta 
Reviewed-by: Johannes Thumshirn 
Reviewed-by: Tomas Henzl 
Signed-off-by: Martin K. Petersen

aacraid: Reset irq affinity hints

2015-11-10T00:06:38+00:00

Reset irq affinity hints before releasing IRQ.
Removed duplicate code of IRQ acquire/release.

Reviewed-by: Tomas Henzl 
Reviewed-by: Murthy Bhat 
Reviewed-by: Karthikeya Sunkesula 
Signed-off-by: Mahesh Rajashekhara 
Signed-off-by: James Bottomley

aacraid: Enable 64bit write to controller register

2015-11-10T00:01:29+00:00

If writeq() not supported, then do atomic two 32bit write

Reviewed-by: Tomas Henzl 
Reviewed-by: Murthy Bhat 
Reviewed-by: Karthikeya Sunkesula 
Signed-off-by: Mahesh Rajashekhara 
Signed-off-by: James Bottomley

aacraid: Change interrupt mode to MSI for Series 6

2015-11-10T00:00:29+00:00

This change always sets MSI interrupt mode for series-6 controller.

Reviewed-by: Tomas Henzl 
Reviewed-by: Murthy Bhat 
Reviewed-by: Karthikeya Sunkesula 
Signed-off-by: Mahesh Rajashekhara 
Signed-off-by: James Bottomley

aacraid: Add Power Management support

2015-11-09T23:59:18+00:00

* .suspend() and .resume() routines implemented in the driver
* aac_release_resources() initiates firmware shutdown
* aac_acquire_resources re-initializes the host interface

Reviewed-by: Tomas Henzl 
Reviewed-by: Murthy Bhat 
Reviewed-by: Karthikeya Sunkesula 
Signed-off-by: Mahesh Rajashekhara 
Signed-off-by: James Bottomley

aacraid: aac_src_intr_message() can be static

2015-05-25T15:46:25+00:00

Signed-off-by: Fengguang Wu 
Acked-by: Mahesh Rajashekhara 
Signed-off-by: James Bottomley

aacraid: performance improvement changes

2015-04-09T23:55:21+00:00

Signed-off-by: Mahesh Rajashekhara 
Reviewed-by: Hannes Reinecke 
Reviewed-by: Murthy Bhat 
Signed-off-by: James Bottomley

aacraid: IOP RESET command handling changes

2015-04-09T23:53:37+00:00

This patch fixes the IOP_RESET issue. Sending IOP_RESET command need to wait
for only 10 sec instead of 5 minutes in case of firmware does not response
IOP_RESET command.  Disable interrupt before setup interrupt routine to
prevent spurious interrupts.

Signed-off-by: Mahesh Rajashekhara 
Reviewed-by: Hannes Reinecke 
Reviewed-by: Murthy Bhat 
Signed-off-by: James Bottomley

aacraid: MSI-x support

2015-04-09T23:48:15+00:00

Signed-off-by: Mahesh Rajashekhara 
Reviewed-by: Hannes Reinecke 
Reviewed-by: Murthy Bhat 
Signed-off-by: James Bottomley

[SCSI] remove deprecated IRQF_DISABLED from SCSI

2014-03-19T22:04:44+00:00

It's a NOOP since 2.6.35 and it will be removed one day.

[jejb: remove from missed arm scsi drivers]
Signed-off-by: Michael Opdenacker 
Signed-off-by: James Bottomley