diff options
| author | Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com> | 2016-04-25 23:32:37 -0700 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2016-04-29 19:08:24 -0400 |
| commit | 78cbccd3bd683c295a44af8050797dc4a41376ff (patch) | |
| tree | 766b8fecf29ffa81b8daed44be0cbb9437c3e112 /drivers/scsi/aacraid/aacraid.h | |
| parent | eef76f16295d34d7fab6994b82dda60ce002f91d (diff) | |
| download | linux-78cbccd3bd683c295a44af8050797dc4a41376ff.tar.gz linux-78cbccd3bd683c295a44af8050797dc4a41376ff.tar.xz | |
aacraid: Fix for KDUMP driver hang
When KDUMP is triggered the driver first talks to the firmware in INTX
mode, but the adapter firmware is still in MSIX mode. Therefore the first
driver command hangs since the driver is waiting for an INTX response and
firmware gives a MSIX response. If when the OS is installed on a RAID
drive created by the adapter KDUMP will hang since the driver does not
receive a response in sync mode.
Fixed by: Change the firmware to INTX mode if it is in MSIX mode before
sending the first sync command.
Cc: stable@vger.kernel.org
Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/aacraid/aacraid.h')
| -rw-r--r-- | drivers/scsi/aacraid/aacraid.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/scsi/aacraid/aacraid.h b/drivers/scsi/aacraid/aacraid.h index b70f3eb323f7..0ba8f6118e75 100644 --- a/drivers/scsi/aacraid/aacraid.h +++ b/drivers/scsi/aacraid/aacraid.h @@ -29,6 +29,7 @@ enum { #define AAC_INT_MODE_MSI (1<<1) #define AAC_INT_MODE_AIF (1<<2) #define AAC_INT_MODE_SYNC (1<<3) +#define AAC_INT_MODE_MSIX (1<<16) #define AAC_INT_ENABLE_TYPE1_INTX 0xfffffffb #define AAC_INT_ENABLE_TYPE1_MSIX 0xfffffffa |