linux-toradex.git/drivers/scsi/aacraid/src.c, branch v4.4.129

scsi: aacraid: Reorder Adapter status check

2017-03-12T05:37:26+00:00

commit c421530bf848604e97d0785a03b3fe2c62775083 upstream.

The driver currently checks the SELF_TEST_FAILED first and then
KERNEL_PANIC next. Under error conditions(boot code failure) both
SELF_TEST_FAILED and KERNEL_PANIC can be set at the same time.

The driver has the capability to reset the controller on an KERNEL_PANIC,
but not on SELF_TEST_FAILED.

Fixed by first checking KERNEL_PANIC and then the others.

Fixes: e8b12f0fb835223752 ([SCSI] aacraid: Add new code for PMC-Sierra's SRC base controller family)
Signed-off-by: Raghava Aditya Renukunta 
Reviewed-by: David Carroll 
Reviewed-by: Johannes Thumshirn 
Signed-off-by: Martin K. Petersen 
Signed-off-by: Greg Kroah-Hartman

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