diff options
Diffstat (limited to 'drivers/infiniband/ulp/srp/ib_srp.h')
| -rw-r--r-- | drivers/infiniband/ulp/srp/ib_srp.h | 46 |
1 files changed, 25 insertions, 21 deletions
diff --git a/drivers/infiniband/ulp/srp/ib_srp.h b/drivers/infiniband/ulp/srp/ib_srp.h index ed0dce9e479f..9dc6fc3fd894 100644 --- a/drivers/infiniband/ulp/srp/ib_srp.h +++ b/drivers/infiniband/ulp/srp/ib_srp.h @@ -59,16 +59,15 @@ enum { SRP_RQ_SHIFT = 6, SRP_RQ_SIZE = 1 << SRP_RQ_SHIFT, - SRP_RQ_MASK = SRP_RQ_SIZE - 1, SRP_SQ_SIZE = SRP_RQ_SIZE, - SRP_SQ_MASK = SRP_SQ_SIZE - 1, SRP_RSP_SQ_SIZE = 1, SRP_REQ_SQ_SIZE = SRP_SQ_SIZE - SRP_RSP_SQ_SIZE, SRP_TSK_MGMT_SQ_SIZE = 1, SRP_CMD_SQ_SIZE = SRP_REQ_SQ_SIZE - SRP_TSK_MGMT_SQ_SIZE, - SRP_TAG_TSK_MGMT = 1 << (SRP_RQ_SHIFT + 1), + SRP_TAG_NO_REQ = ~0U, + SRP_TAG_TSK_MGMT = 1U << 31, SRP_FMR_SIZE = 256, SRP_FMR_POOL_SIZE = 1024, @@ -113,15 +112,29 @@ struct srp_request { struct list_head list; struct scsi_cmnd *scmnd; struct srp_iu *cmd; - struct srp_iu *tsk_mgmt; struct ib_pool_fmr *fmr; - struct completion done; short index; - u8 cmd_done; - u8 tsk_status; }; struct srp_target_port { + /* These are RW in the hot path, and commonly used together */ + struct list_head free_tx; + struct list_head free_reqs; + spinlock_t lock; + s32 req_lim; + + /* These are read-only in the hot path */ + struct ib_cq *send_cq ____cacheline_aligned_in_smp; + struct ib_cq *recv_cq; + struct ib_qp *qp; + u32 lkey; + u32 rkey; + enum srp_target_state state; + + /* Everything above this point is used in the hot path of + * command processing. Try to keep them packed into cachelines. + */ + __be64 id_ext; __be64 ioc_guid; __be64 service_id; @@ -138,24 +151,13 @@ struct srp_target_port { int path_query_id; struct ib_cm_id *cm_id; - struct ib_cq *recv_cq; - struct ib_cq *send_cq; - struct ib_qp *qp; int max_ti_iu_len; - s32 req_lim; int zero_req_lim; - unsigned rx_head; - struct srp_iu *rx_ring[SRP_RQ_SIZE]; - - unsigned tx_head; - unsigned tx_tail; struct srp_iu *tx_ring[SRP_SQ_SIZE]; - - struct list_head free_reqs; - struct list_head req_queue; + struct srp_iu *rx_ring[SRP_RQ_SIZE]; struct srp_request req_ring[SRP_CMD_SQ_SIZE]; struct work_struct work; @@ -163,16 +165,18 @@ struct srp_target_port { struct list_head list; struct completion done; int status; - enum srp_target_state state; int qp_in_error; + + struct completion tsk_mgmt_done; + u8 tsk_mgmt_status; }; struct srp_iu { + struct list_head list; u64 dma; void *buf; size_t size; enum dma_data_direction direction; - enum srp_iu_type type; }; #endif /* IB_SRP_H */ |