diff options
Diffstat (limited to 'drivers/infiniband/ulp/iser/iscsi_iser.h')
| -rw-r--r-- | drivers/infiniband/ulp/iser/iscsi_iser.h | 21 |
1 files changed, 15 insertions, 6 deletions
diff --git a/drivers/infiniband/ulp/iser/iscsi_iser.h b/drivers/infiniband/ulp/iser/iscsi_iser.h index fee8829053e0..d2fc55a15e95 100644 --- a/drivers/infiniband/ulp/iser/iscsi_iser.h +++ b/drivers/infiniband/ulp/iser/iscsi_iser.h @@ -102,7 +102,13 @@ /* support up to 512KB in one RDMA */ #define ISCSI_ISER_SG_TABLESIZE (0x80000 >> SHIFT_4K) -#define ISER_DEF_CMD_PER_LUN ISCSI_DEF_XMIT_CMDS_MAX +#define ISER_DEF_XMIT_CMDS_DEFAULT 512 +#if ISCSI_DEF_XMIT_CMDS_MAX > ISER_DEF_XMIT_CMDS_DEFAULT + #define ISER_DEF_XMIT_CMDS_MAX ISCSI_DEF_XMIT_CMDS_MAX +#else + #define ISER_DEF_XMIT_CMDS_MAX ISER_DEF_XMIT_CMDS_DEFAULT +#endif +#define ISER_DEF_CMD_PER_LUN ISER_DEF_XMIT_CMDS_MAX /* QP settings */ /* Maximal bounds on received asynchronous PDUs */ @@ -111,9 +117,9 @@ #define ISER_MAX_TX_MISC_PDUS 6 /* NOOP_OUT(2), TEXT(1), * * SCSI_TMFUNC(2), LOGOUT(1) */ -#define ISER_QP_MAX_RECV_DTOS (ISCSI_DEF_XMIT_CMDS_MAX) +#define ISER_QP_MAX_RECV_DTOS (ISER_DEF_XMIT_CMDS_MAX) -#define ISER_MIN_POSTED_RX (ISCSI_DEF_XMIT_CMDS_MAX >> 2) +#define ISER_MIN_POSTED_RX (ISER_DEF_XMIT_CMDS_MAX >> 2) /* the max TX (send) WR supported by the iSER QP is defined by * * max_send_wr = T * (1 + D) + C ; D is how many inflight dataouts we expect * @@ -123,7 +129,7 @@ #define ISER_INFLIGHT_DATAOUTS 8 -#define ISER_QP_MAX_REQ_DTOS (ISCSI_DEF_XMIT_CMDS_MAX * \ +#define ISER_QP_MAX_REQ_DTOS (ISER_DEF_XMIT_CMDS_MAX * \ (1 + ISER_INFLIGHT_DATAOUTS) + \ ISER_MAX_TX_MISC_PDUS + \ ISER_MAX_RX_MISC_PDUS) @@ -272,6 +278,9 @@ struct iser_conn { struct ib_qp *qp; /* QP */ struct ib_fmr_pool *fmr_pool; /* pool of IB FMRs */ wait_queue_head_t wait; /* waitq for conn/disconn */ + unsigned qp_max_recv_dtos; /* num of rx buffers */ + unsigned qp_max_recv_dtos_mask; /* above minus 1 */ + unsigned min_posted_rx; /* qp_max_recv_dtos >> 2 */ int post_recv_buf_count; /* posted rx count */ atomic_t post_send_buf_count; /* posted tx count */ char name[ISER_OBJECT_NAME_SIZE]; @@ -394,7 +403,7 @@ int iser_dma_map_task_data(struct iscsi_iser_task *iser_task, void iser_dma_unmap_task_data(struct iscsi_iser_task *iser_task); int iser_initialize_task_headers(struct iscsi_task *task, struct iser_tx_desc *tx_desc); -int iser_alloc_rx_descriptors(struct iser_conn *ib_conn); -int iser_create_fmr_pool(struct iser_conn *ib_conn); +int iser_alloc_rx_descriptors(struct iser_conn *ib_conn, struct iscsi_session *session); +int iser_create_fmr_pool(struct iser_conn *ib_conn, unsigned cmds_max); void iser_free_fmr_pool(struct iser_conn *ib_conn); #endif |