This is a note to let you know that I've just added the patch titled
SCSI: mpt2sas: Fix for issue - Unable to boot from the drive connected to
HBA
to the 3.0-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:
scsi-mpt2sas-fix-for-issue-unable-to-boot-from-the-drive-connected-to-hba.patch
and it can be found in the queue-3.0 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From 10cce6d8b5af0b32bc4254ae4a28423a74c0921c Mon Sep 17 00:00:00 2001
From: "[email protected]" <[email protected]>
Date: Wed, 22 Aug 2012 16:55:13 +0530
Subject: SCSI: mpt2sas: Fix for issue - Unable to boot from the drive connected
to HBA
From: "[email protected]" <[email protected]>
commit 10cce6d8b5af0b32bc4254ae4a28423a74c0921c upstream.
This patch checks whether HBA is SAS2008 B0 controller.
if it is a SAS2008 B0 controller then it use IO-APIC interrupt instead of MSIX,
as SAS2008 B0 controller doesn't support MSIX interrupts.
[jejb: fix whitespace problems]
Signed-off-by: Sreekanth Reddy <[email protected]>
Signed-off-by: James Bottomley <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/scsi/mpt2sas/mpt2sas_base.c | 7 +++++++
1 file changed, 7 insertions(+)
--- a/drivers/scsi/mpt2sas/mpt2sas_base.c
+++ b/drivers/scsi/mpt2sas/mpt2sas_base.c
@@ -1097,6 +1097,13 @@ _base_check_enable_msix(struct MPT2SAS_A
u16 message_control;
+ /* Check whether controller SAS2008 B0 controller,
+ if it is SAS2008 B0 controller use IO-APIC instead of MSIX */
+ if (ioc->pdev->device == MPI2_MFGPAGE_DEVID_SAS2008 &&
+ ioc->pdev->revision == 0x01) {
+ return -EINVAL;
+ }
+
base = pci_find_capability(ioc->pdev, PCI_CAP_ID_MSIX);
if (!base) {
dfailprintk(ioc, printk(MPT2SAS_INFO_FMT "msix not "
Patches currently in stable-queue which might be from [email protected]
are
queue-3.0/scsi-mpt2sas-fix-for-issue-unable-to-boot-from-the-drive-connected-to-hba.patch
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