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| 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.h | |
| parent | 96188a89cc6d5ad3a0a5b7a6c4abc9f4a6de7678 (diff) | |
| download | op-kernel-dev-33203bc4d61b33f1f7bb736eac0c6fdd20b92397.zip op-kernel-dev-33203bc4d61b33f1f7bb736eac0c6fdd20b92397.tar.gz | |
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.h')
| -rw-r--r-- | drivers/scsi/megaraid/megaraid_sas.h | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/scsi/megaraid/megaraid_sas.h b/drivers/scsi/megaraid/megaraid_sas.h index a45ff10..075e2e9 100644 --- a/drivers/scsi/megaraid/megaraid_sas.h +++ b/drivers/scsi/megaraid/megaraid_sas.h @@ -2172,6 +2172,11 @@ struct megasas_instance { atomic_t fw_outstanding; atomic_t ldio_outstanding; atomic_t fw_reset_no_pci_access; + atomic_t ieee_sgl; + atomic_t prp_sgl; + atomic_t sge_holes_type1; + atomic_t sge_holes_type2; + atomic_t sge_holes_type3; struct megasas_instance_template *instancet; struct tasklet_struct isr_tasklet; @@ -2443,7 +2448,9 @@ __le16 MR_PdDevHandleGet(u32 pd, struct MR_DRV_RAID_MAP_ALL *map); u16 MR_GetLDTgtId(u32 ld, struct MR_DRV_RAID_MAP_ALL *map); __le16 get_updated_dev_handle(struct megasas_instance *instance, - struct LD_LOAD_BALANCE_INFO *lbInfo, struct IO_REQUEST_INFO *in_info); + struct LD_LOAD_BALANCE_INFO *lbInfo, + struct IO_REQUEST_INFO *in_info, + struct MR_DRV_RAID_MAP_ALL *drv_map); void mr_update_load_balance_params(struct MR_DRV_RAID_MAP_ALL *map, struct LD_LOAD_BALANCE_INFO *lbInfo); int megasas_get_ctrl_info(struct megasas_instance *instance); @@ -2472,4 +2479,5 @@ void megasas_update_sdev_properties(struct scsi_device *sdev); int megasas_reset_fusion(struct Scsi_Host *shost, int reason); int megasas_task_abort_fusion(struct scsi_cmnd *scmd); int megasas_reset_target_fusion(struct scsi_cmnd *scmd); +u32 mega_mod64(u64 dividend, u32 divisor); #endif /*LSI_MEGARAID_SAS_H */ |
