Patch "aacraid: Set correct msix count for EEH recovery" has been added to the 4.4-stable tree

This is a note to let you know that I've just added the patch titled

aacraid: Set correct msix count for EEH recovery

to the 4.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
aacraid-set-correct-msix-count-for-eeh-recovery.patch
and it can be found in the queue-4.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Raghava Aditya Renukunta <[email protected]>
Date: Wed, 3 Feb 2016 15:06:03 -0800
Subject: aacraid: Set correct msix count for EEH recovery

From: Raghava Aditya Renukunta <[email protected]>

commit ecc479e00db8eb110b200afe1effcb3df20ca7ae upstream.

During EEH recovery number of online CPU's might change thereby changing the number of MSIx vectors. Since each fib is allocated to a vector, changes in the number of vectors causes fib to be sent thru invalid vectors.In addition the correct number of MSIx vectors is not updated in the INIT struct sent to the controller, when it is reinitialized.

Fixed by reassigning vectors to fibs based on the updated number of MSIx vectors and updating the INIT structure before sending to controller.

---
 drivers/scsi/aacraid/linit.c |   12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

@@ -1404,8 +1404,18 @@ static int aac_acquire_resources(struct
 
 	aac_adapter_enable_int(dev);
 
-	if (!dev->sync_mode)
+	/*max msix may change  after EEH
+	 * Re-assign vectors to fibs
+	 */
+	aac_fib_vector_assign(dev);
+
+	if (!dev->sync_mode) {
+		/* After EEH recovery or suspend resume, max_msix count
+		 * may change, therfore updating in init as well.
+		 */
 		aac_adapter_start(dev);
+		dev->init->Sa_MSIXVectors = cpu_to_le32(dev->max_msix);
+	}
 	return 0;
 
 error_iounmap:

Patches currently in stable-queue which might be from [email protected] are

queue-4.4/aacraid-fix-memory-leak-in-aac_fib_map_free.patch queue-4.4/aacraid-fix-rrq-overload.patch queue-4.4/aacraid-set-correct-msix-count-for-eeh-recovery.patch