| From: "sreekanth.reddy@lsi.com" <sreekanth.reddy@lsi.com> |
| Date: Wed, 22 Aug 2012 16:55:13 +0530 |
| Subject: [SCSI] mpt2sas: Fix for issue - Unable to boot from the drive |
| connected to HBA |
| |
| 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 <sreekanth.reddy@lsi.com> |
| Signed-off-by: James Bottomley <JBottomley@Parallels.com> |
| Signed-off-by: Ben Hutchings <ben@decadent.org.uk> |
| --- |
| drivers/scsi/mpt2sas/mpt2sas_base.c | 7 +++++++ |
| 1 file changed, 7 insertions(+) |
| |
| diff --git a/drivers/scsi/mpt2sas/mpt2sas_base.c b/drivers/scsi/mpt2sas/mpt2sas_base.c |
| index b25757d..9d5a56c 100644 |
| --- a/drivers/scsi/mpt2sas/mpt2sas_base.c |
| +++ b/drivers/scsi/mpt2sas/mpt2sas_base.c |
| @@ -1209,6 +1209,13 @@ _base_check_enable_msix(struct MPT2SAS_ADAPTER *ioc) |
| 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 " |
