diff options
| author | Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com> | 2017-05-10 18:39:37 +0200 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2017-06-13 02:47:59 +0200 |
| commit | d58129c96b3cde4821763b08b5f1bba17f031138 (patch) | |
| tree | a834256035fb0b311288d0032d63ba24bd28b4d9 /drivers/scsi/aacraid/aacraid.h | |
| parent | scsi: aacraid: Fix DMAR issues with iommu=pt (diff) | |
| download | linux-d58129c96b3cde4821763b08b5f1bba17f031138.tar.xz linux-d58129c96b3cde4821763b08b5f1bba17f031138.zip | |
scsi: aacraid: Added 32 and 64 queue depth for arc natives
The qd for ARC Native disks is calculated by dividing the max IO 1024
by the number of disks or 256 which ever is lower. This causes poor
disk IO performance.
The fix is set the qd based on the type of disk (SAS - 64 and SATA -
32).
Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Reviewed-by: David Carroll <david.carroll@microsemi.com>
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 d281492009fb..cb7d69939a34 100644 --- a/drivers/scsi/aacraid/aacraid.h +++ b/drivers/scsi/aacraid/aacraid.h @@ -415,6 +415,7 @@ struct aac_ciss_identify_pd { * These macros convert from physical channels to virtual channels */ #define CONTAINER_CHANNEL (0) +#define NATIVE_CHANNEL (1) #define CONTAINER_TO_CHANNEL(cont) (CONTAINER_CHANNEL) #define CONTAINER_TO_ID(cont) (cont) #define CONTAINER_TO_LUN(cont) (0) |