BMC/Intel-BMC/linux.git/drivers/scsi/aacraid/src.c, branch dev-4.4

aacraid: Fix RRQ overload

2016-04-12T16:08:38+00:00

commit 3f4ce057d51a9c0ed9b01ba693df685d230ffcae upstream. 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" Signed-off-by: Raghava Aditya Renukunta Reviewed-by: Johannes Thumshirn Reviewed-by: Tomas Henzl Signed-off-by: Martin K. Petersen Signed-off-by: Greg Kroah-Hartman

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