diff options
| author | Shivasharan S <shivasharan.srikanteshwara@broadcom.com> | 2017-02-10 00:59:12 -0800 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2017-02-13 07:26:22 -0500 |
| commit | 33203bc4d61b33f1f7bb736eac0c6fdd20b92397 (patch) | |
| tree | 116b7774c708ece4fdcc28071363520297fe8a32 /drivers/scsi/megaraid/megaraid_sas_fusion.h | |
| parent | 96188a89cc6d5ad3a0a5b7a6c4abc9f4a6de7678 (diff) | |
scsi: megaraid_sas: NVME fast path io support
This patch provide true fast path IO support. Driver creates PRP for
NVME drives and send Fast Path for performance. Certain h/w requirement
needs to be taken care in driver.
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.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 | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/drivers/scsi/megaraid/megaraid_sas_fusion.h b/drivers/scsi/megaraid/megaraid_sas_fusion.h index 9d02967b7857..c606ca000596 100644 --- a/drivers/scsi/megaraid/megaraid_sas_fusion.h +++ b/drivers/scsi/megaraid/megaraid_sas_fusion.h @@ -702,7 +702,7 @@ struct MPI2_IOC_INIT_REQUEST { struct MR_DEV_HANDLE_INFO { __le16 curDevHdl; u8 validHandles; - u8 reserved; + u8 interfaceType; __le16 devHandle[2]; }; @@ -914,6 +914,7 @@ struct IO_REQUEST_INFO { u16 ldTgtId; u8 isRead; __le16 devHandle; + u8 pd_interface; u64 pdBlock; u8 fpOkForIo; u8 IoforUnevenSpan; @@ -1025,6 +1026,16 @@ struct MR_FW_RAID_MAP_DYNAMIC { #define IEEE_SGE_FLAGS_CHAIN_ELEMENT (0x80) #define IEEE_SGE_FLAGS_END_OF_LIST (0x40) +#define MPI2_SGE_FLAGS_SHIFT (0x02) +#define IEEE_SGE_FLAGS_FORMAT_MASK (0xC0) +#define IEEE_SGE_FLAGS_FORMAT_IEEE (0x00) +#define IEEE_SGE_FLAGS_FORMAT_NVME (0x02) + +#define MPI26_IEEE_SGE_FLAGS_NSF_MASK (0x1C) +#define MPI26_IEEE_SGE_FLAGS_NSF_MPI_IEEE (0x00) +#define MPI26_IEEE_SGE_FLAGS_NSF_NVME_PRP (0x08) +#define MPI26_IEEE_SGE_FLAGS_NSF_NVME_SGL (0x10) + struct megasas_register_set; struct megasas_instance; @@ -1061,6 +1072,7 @@ struct megasas_cmd_fusion { u32 index; u8 pd_r1_lb; struct completion done; + u8 pd_interface; u16 r1_alt_dev_handle; /* raid 1/10 only*/ bool cmd_completed; /* raid 1/10 fp writes status holder */ |