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| author | sreekanth.reddy@lsi.com <sreekanth.reddy@lsi.com> | 2012-08-22 16:55:13 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-10-02 10:30:07 -0700 |
| commit | d39bdd32d086d55a4adf228a0af2874ee489cd61 (patch) | |
| tree | 4b7fc91b19af3c4a7bbaaf2b76ef10011f390786 /drivers/scsi | |
| parent | c68f32825bc8c3e046493262422e134a03adb6c6 (diff) | |
| download | lwn-d39bdd32d086d55a4adf228a0af2874ee489cd61.tar.gz lwn-d39bdd32d086d55a4adf228a0af2874ee489cd61.zip | |
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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/scsi')
| -rw-r--r-- | drivers/scsi/mpt2sas/mpt2sas_base.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/scsi/mpt2sas/mpt2sas_base.c b/drivers/scsi/mpt2sas/mpt2sas_base.c index c4cef569540b..db793621c403 100644 --- a/drivers/scsi/mpt2sas/mpt2sas_base.c +++ b/drivers/scsi/mpt2sas/mpt2sas_base.c @@ -1202,6 +1202,13 @@ _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 " |