James/Linux-scsi, The following patch for megaraid_sas calls tasklet_schedule() even if outbound_intr_status == 0 for MFI based boards in MSI-X mode. Signed-off-by: Adam Radford <aradford@xxxxxxxxx> diff -Naur scsi-misc-2.6/drivers/scsi/megaraid/megaraid_sas_base.c scsi-misc-2.6.new/drivers/scsi/megaraid/megaraid_sas_base.c --- scsi-misc-2.6/drivers/scsi/megaraid/megaraid_sas_base.c 2011-02-24 18:40:57.489181971 -0800 +++ scsi-misc-2.6.new/drivers/scsi/megaraid/megaraid_sas_base.c 2011-02-24 18:42:34.277276308 -0800 @@ -2503,7 +2503,9 @@ if ((mfiStatus = instance->instancet->clear_intr( instance->reg_set) ) == 0) { - return IRQ_NONE; + /* Hardware may not set outbound_intr_status in MSI-X mode */ + if (!instance->msi_flag) + return IRQ_NONE; } instance->mfiStatus = mfiStatus;
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megaraid_sas.patch4
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