diff options
| author | sumit.saxena@avagotech.com <sumit.saxena@avagotech.com> | 2015-08-31 14:53:31 +0300 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2015-10-29 07:25:31 +0300 |
| commit | bd5f9484262a13397a0725f4a43f7baaa3341125 (patch) | |
| tree | b18335af8cef203a733a43a0905571bb7f9f3276 /drivers/scsi/megaraid/megaraid_sas_fusion.h | |
| parent | 4dbbe3cec443f0c6867e7ef549704966fbd6f48b (diff) | |
| download | linux-bd5f9484262a13397a0725f4a43f7baaa3341125.tar.xz | |
megaraid_sas: Support for max_io_size 1MB
Driver will expose max sge = 256 (earlier it was 64) if firmware
supports extended IO size (1M).
Signed-off-by: Sumit Saxena <sumit.saxena@avagotech.com>
Signed-off-by: Kashyap Desai <kashyap.desai@avagotech.com>
Reviewed-by: Martin Petersen <martin.petersen@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/megaraid/megaraid_sas_fusion.h')
| -rw-r--r-- | drivers/scsi/megaraid/megaraid_sas_fusion.h | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/scsi/megaraid/megaraid_sas_fusion.h b/drivers/scsi/megaraid/megaraid_sas_fusion.h index 41f3d8b6dc63..7d89c1c950bd 100644 --- a/drivers/scsi/megaraid/megaraid_sas_fusion.h +++ b/drivers/scsi/megaraid/megaraid_sas_fusion.h @@ -35,8 +35,13 @@ #define _MEGARAID_SAS_FUSION_H_ /* Fusion defines */ -#define MEGASAS_MAX_SZ_CHAIN_FRAME 1024 +#define MEGASAS_CHAIN_FRAME_SZ_MIN 1024 #define MFI_FUSION_ENABLE_INTERRUPT_MASK (0x00000009) +#define MEGASAS_MAX_CHAIN_SHIFT 5 +#define MEGASAS_MAX_CHAIN_SIZE_UNITS_MASK 0x400000 +#define MEGASAS_MAX_CHAIN_SIZE_MASK 0x3E0 +#define MEGASAS_256K_IO 128 +#define MEGASAS_1MB_IO (MEGASAS_256K_IO * 4) #define MEGA_MPI2_RAID_DEFAULT_IO_FRAME_SIZE 256 #define MEGASAS_MPI2_FUNCTION_PASSTHRU_IO_REQUEST 0xF0 #define MEGASAS_MPI2_FUNCTION_LD_IO_REQUEST 0xF1 @@ -119,7 +124,8 @@ struct RAID_CONTEXT { __le16 configSeqNum; u8 spanArm; u8 priority; - u8 resvd2[2]; + u8 numSGEExt; + u8 resvd2; }; #define RAID_CTX_SPANARM_ARM_SHIFT (0) |