diff options
Diffstat (limited to 'drivers/infiniband/ulp/rtrs/rtrs-pri.h')
| -rw-r--r-- | drivers/infiniband/ulp/rtrs/rtrs-pri.h | 38 |
1 files changed, 19 insertions, 19 deletions
diff --git a/drivers/infiniband/ulp/rtrs/rtrs-pri.h b/drivers/infiniband/ulp/rtrs/rtrs-pri.h index 78eac9a4f703..a2420eecaf5a 100644 --- a/drivers/infiniband/ulp/rtrs/rtrs-pri.h +++ b/drivers/infiniband/ulp/rtrs/rtrs-pri.h @@ -23,6 +23,16 @@ #define RTRS_PROTO_VER_STRING __stringify(RTRS_PROTO_VER_MAJOR) "." \ __stringify(RTRS_PROTO_VER_MINOR) +/* + * Max IB immediate data size is 2^28 (MAX_IMM_PAYL_BITS) + * and the minimum chunk size is 4096 (2^12). + * So the maximum sess_queue_depth is 65535 (2^16 - 1) in theory + * since queue_depth in rtrs_msg_conn_rsp is defined as le16. + * Therefore the pratical max value of sess_queue_depth is + * somewhere between 1 and 65535 and it depends on the system. + */ +#define MAX_SESS_QUEUE_DEPTH 65535 + enum rtrs_imm_const { MAX_IMM_TYPE_BITS = 4, MAX_IMM_TYPE_MASK = ((1 << MAX_IMM_TYPE_BITS) - 1), @@ -46,16 +56,6 @@ enum { MAX_PATHS_NUM = 128, - /* - * Max IB immediate data size is 2^28 (MAX_IMM_PAYL_BITS) - * and the minimum chunk size is 4096 (2^12). - * So the maximum sess_queue_depth is 65536 (2^16) in theory. - * But mempool_create, create_qp and ib_post_send fail with - * "cannot allocate memory" error if sess_queue_depth is too big. - * Therefore the pratical max value of sess_queue_depth is - * somewhere between 1 and 65534 and it depends on the system. - */ - MAX_SESS_QUEUE_DEPTH = 65535, MIN_CHUNK_SIZE = 8192, RTRS_HB_INTERVAL_MS = 5000, @@ -90,7 +90,7 @@ struct rtrs_ib_dev { }; struct rtrs_con { - struct rtrs_sess *sess; + struct rtrs_path *path; struct ib_qp *qp; struct ib_cq *cq; struct rdma_cm_id *cm_id; @@ -100,7 +100,7 @@ struct rtrs_con { atomic_t sq_wr_avail; }; -struct rtrs_sess { +struct rtrs_path { struct list_head entry; struct sockaddr_storage dst_addr; struct sockaddr_storage src_addr; @@ -229,11 +229,11 @@ struct rtrs_msg_conn_rsp { /** * struct rtrs_msg_info_req * @type: @RTRS_MSG_INFO_REQ - * @sessname: Session name chosen by client + * @pathname: Path name chosen by client */ struct rtrs_msg_info_req { __le16 type; - u8 sessname[NAME_MAX]; + u8 pathname[NAME_MAX]; u8 reserved[15]; }; @@ -313,19 +313,19 @@ int rtrs_iu_post_rdma_write_imm(struct rtrs_con *con, struct rtrs_iu *iu, int rtrs_post_recv_empty(struct rtrs_con *con, struct ib_cqe *cqe); -int rtrs_cq_qp_create(struct rtrs_sess *sess, struct rtrs_con *con, +int rtrs_cq_qp_create(struct rtrs_path *path, struct rtrs_con *con, u32 max_send_sge, int cq_vector, int nr_cqe, u32 max_send_wr, u32 max_recv_wr, enum ib_poll_context poll_ctx); void rtrs_cq_qp_destroy(struct rtrs_con *con); -void rtrs_init_hb(struct rtrs_sess *sess, struct ib_cqe *cqe, +void rtrs_init_hb(struct rtrs_path *path, struct ib_cqe *cqe, unsigned int interval_ms, unsigned int missed_max, void (*err_handler)(struct rtrs_con *con), struct workqueue_struct *wq); -void rtrs_start_hb(struct rtrs_sess *sess); -void rtrs_stop_hb(struct rtrs_sess *sess); -void rtrs_send_hb_ack(struct rtrs_sess *sess); +void rtrs_start_hb(struct rtrs_path *path); +void rtrs_stop_hb(struct rtrs_path *path); +void rtrs_send_hb_ack(struct rtrs_path *path); void rtrs_rdma_dev_pd_init(enum ib_pd_flags pd_flags, struct rtrs_rdma_dev_pd *pool); |