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Commit 10cce6d8 authored by sreekanth.reddy@lsi.com's avatar sreekanth.reddy@lsi.com Committed by James Bottomley
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[SCSI] mpt2sas: Fix for issue - Unable to boot from the drive connected to HBA 



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: default avatarSreekanth Reddy <sreekanth.reddy@lsi.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: default avatarJames Bottomley <JBottomley@Parallels.com>
parent d6532207

drivers/scsi/mpt2sas/mpt2sas_base.c

+7 −0
Original line number Diff line number Diff line
@@ -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 "