From: Sagi Grimberg Date: Thu, 9 Jan 2014 16:40:50 +0000 (+0200) Subject: IB/isert: Avoid frwr notation, user fastreg X-Git-Tag: v3.14-rc1~17^2~12 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=a3a5a82627492c8947d8866ddf421e9248088466;p=karo-tx-linux.git IB/isert: Avoid frwr notation, user fastreg Use fast registration lingo. fast registration will also incorporate signature/DIF registration. Signed-off-by: Sagi Grimberg Signed-off-by: Nicholas Bellinger --- diff --git a/drivers/infiniband/ulp/isert/ib_isert.c b/drivers/infiniband/ulp/isert/ib_isert.c index 3dd24272b1cd..295d2be6874c 100644 --- a/drivers/infiniband/ulp/isert/ib_isert.c +++ b/drivers/infiniband/ulp/isert/ib_isert.c @@ -47,10 +47,10 @@ static int isert_map_rdma(struct iscsi_conn *conn, struct iscsi_cmd *cmd, struct isert_rdma_wr *wr); static void -isert_unreg_rdma_frwr(struct isert_cmd *isert_cmd, struct isert_conn *isert_conn); +isert_unreg_rdma(struct isert_cmd *isert_cmd, struct isert_conn *isert_conn); static int -isert_reg_rdma_frwr(struct iscsi_conn *conn, struct iscsi_cmd *cmd, - struct isert_rdma_wr *wr); +isert_reg_rdma(struct iscsi_conn *conn, struct iscsi_cmd *cmd, + struct isert_rdma_wr *wr); static void isert_qp_event_callback(struct ib_event *e, void *context) @@ -225,11 +225,11 @@ isert_create_device_ib_res(struct isert_device *device) /* asign function handlers */ if (dev_attr->device_cap_flags & IB_DEVICE_MEM_MGT_EXTENSIONS) { - device->use_frwr = 1; - device->reg_rdma_mem = isert_reg_rdma_frwr; - device->unreg_rdma_mem = isert_unreg_rdma_frwr; + device->use_fastreg = 1; + device->reg_rdma_mem = isert_reg_rdma; + device->unreg_rdma_mem = isert_unreg_rdma; } else { - device->use_frwr = 0; + device->use_fastreg = 0; device->reg_rdma_mem = isert_map_rdma; device->unreg_rdma_mem = isert_unmap_cmd; } @@ -237,9 +237,10 @@ isert_create_device_ib_res(struct isert_device *device) device->cqs_used = min_t(int, num_online_cpus(), device->ib_device->num_comp_vectors); device->cqs_used = min(ISERT_MAX_CQ, device->cqs_used); - pr_debug("Using %d CQs, device %s supports %d vectors support FRWR %d\n", + pr_debug("Using %d CQs, device %s supports %d vectors support " + "Fast registration %d\n", device->cqs_used, device->ib_device->name, - device->ib_device->num_comp_vectors, device->use_frwr); + device->ib_device->num_comp_vectors, device->use_fastreg); device->cq_desc = kzalloc(sizeof(struct isert_cq_desc) * device->cqs_used, GFP_KERNEL); if (!device->cq_desc) { @@ -367,18 +368,18 @@ isert_device_find_by_ib_dev(struct rdma_cm_id *cma_id) } static void -isert_conn_free_frwr_pool(struct isert_conn *isert_conn) +isert_conn_free_fastreg_pool(struct isert_conn *isert_conn) { struct fast_reg_descriptor *fr_desc, *tmp; int i = 0; - if (list_empty(&isert_conn->conn_frwr_pool)) + if (list_empty(&isert_conn->conn_fr_pool)) return; - pr_debug("Freeing conn %p frwr pool", isert_conn); + pr_debug("Freeing conn %p fastreg pool", isert_conn); list_for_each_entry_safe(fr_desc, tmp, - &isert_conn->conn_frwr_pool, list) { + &isert_conn->conn_fr_pool, list) { list_del(&fr_desc->list); ib_free_fast_reg_page_list(fr_desc->data_frpl); ib_dereg_mr(fr_desc->data_mr); @@ -386,20 +387,20 @@ isert_conn_free_frwr_pool(struct isert_conn *isert_conn) ++i; } - if (i < isert_conn->conn_frwr_pool_size) + if (i < isert_conn->conn_fr_pool_size) pr_warn("Pool still has %d regions registered\n", - isert_conn->conn_frwr_pool_size - i); + isert_conn->conn_fr_pool_size - i); } static int -isert_conn_create_frwr_pool(struct isert_conn *isert_conn) +isert_conn_create_fastreg_pool(struct isert_conn *isert_conn) { struct fast_reg_descriptor *fr_desc; struct isert_device *device = isert_conn->conn_device; int i, ret; - INIT_LIST_HEAD(&isert_conn->conn_frwr_pool); - isert_conn->conn_frwr_pool_size = 0; + INIT_LIST_HEAD(&isert_conn->conn_fr_pool); + isert_conn->conn_fr_pool_size = 0; for (i = 0; i < ISCSI_DEF_XMIT_CMDS_MAX; i++) { fr_desc = kzalloc(sizeof(*fr_desc), GFP_KERNEL); if (!fr_desc) { @@ -431,17 +432,17 @@ isert_conn_create_frwr_pool(struct isert_conn *isert_conn) fr_desc, fr_desc->data_frpl->page_list); fr_desc->valid = true; - list_add_tail(&fr_desc->list, &isert_conn->conn_frwr_pool); - isert_conn->conn_frwr_pool_size++; + list_add_tail(&fr_desc->list, &isert_conn->conn_fr_pool); + isert_conn->conn_fr_pool_size++; } - pr_debug("Creating conn %p frwr pool size=%d", - isert_conn, isert_conn->conn_frwr_pool_size); + pr_debug("Creating conn %p fastreg pool size=%d", + isert_conn, isert_conn->conn_fr_pool_size); return 0; err: - isert_conn_free_frwr_pool(isert_conn); + isert_conn_free_fastreg_pool(isert_conn); return ret; } @@ -544,11 +545,12 @@ isert_connect_request(struct rdma_cm_id *cma_id, struct rdma_cm_event *event) goto out_mr; } - if (device->use_frwr) { - ret = isert_conn_create_frwr_pool(isert_conn); + if (device->use_fastreg) { + ret = isert_conn_create_fastreg_pool(isert_conn); if (ret) { - pr_err("Conn: %p failed to create frwr_pool\n", isert_conn); - goto out_frwr; + pr_err("Conn: %p failed to create fastreg pool\n", + isert_conn); + goto out_fastreg; } } @@ -565,9 +567,9 @@ isert_connect_request(struct rdma_cm_id *cma_id, struct rdma_cm_event *event) return 0; out_conn_dev: - if (device->use_frwr) - isert_conn_free_frwr_pool(isert_conn); -out_frwr: + if (device->use_fastreg) + isert_conn_free_fastreg_pool(isert_conn); +out_fastreg: ib_dereg_mr(isert_conn->conn_mr); out_mr: ib_dealloc_pd(isert_conn->conn_pd); @@ -595,8 +597,8 @@ isert_connect_release(struct isert_conn *isert_conn) pr_debug("Entering isert_connect_release(): >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>\n"); - if (device && device->use_frwr) - isert_conn_free_frwr_pool(isert_conn); + if (device && device->use_fastreg) + isert_conn_free_fastreg_pool(isert_conn); if (isert_conn->conn_qp) { cq_index = ((struct isert_cq_desc *) @@ -1394,25 +1396,25 @@ isert_unmap_cmd(struct isert_cmd *isert_cmd, struct isert_conn *isert_conn) } static void -isert_unreg_rdma_frwr(struct isert_cmd *isert_cmd, struct isert_conn *isert_conn) +isert_unreg_rdma(struct isert_cmd *isert_cmd, struct isert_conn *isert_conn) { struct isert_rdma_wr *wr = &isert_cmd->rdma_wr; struct ib_device *ib_dev = isert_conn->conn_cm_id->device; LIST_HEAD(unmap_list); - pr_debug("unreg_frwr_cmd: %p\n", isert_cmd); + pr_debug("unreg_fastreg_cmd: %p\n", isert_cmd); if (wr->fr_desc) { - pr_debug("unreg_frwr_cmd: %p free fr_desc %p\n", + pr_debug("unreg_fastreg_cmd: %p free fr_desc %p\n", isert_cmd, wr->fr_desc); spin_lock_bh(&isert_conn->conn_lock); - list_add_tail(&wr->fr_desc->list, &isert_conn->conn_frwr_pool); + list_add_tail(&wr->fr_desc->list, &isert_conn->conn_fr_pool); spin_unlock_bh(&isert_conn->conn_lock); wr->fr_desc = NULL; } if (wr->sge) { - pr_debug("unreg_frwr_cmd: %p unmap_sg op\n", isert_cmd); + pr_debug("unreg_fastreg_cmd: %p unmap_sg op\n", isert_cmd); ib_dma_unmap_sg(ib_dev, wr->sge, wr->num_sge, (wr->iser_ib_op == ISER_IB_RDMA_WRITE) ? DMA_TO_DEVICE : DMA_FROM_DEVICE); @@ -2224,8 +2226,8 @@ isert_fast_reg_mr(struct fast_reg_descriptor *fr_desc, } static int -isert_reg_rdma_frwr(struct iscsi_conn *conn, struct iscsi_cmd *cmd, - struct isert_rdma_wr *wr) +isert_reg_rdma(struct iscsi_conn *conn, struct iscsi_cmd *cmd, + struct isert_rdma_wr *wr) { struct se_cmd *se_cmd = &cmd->se_cmd; struct isert_cmd *isert_cmd = iscsit_priv_cmd(cmd); @@ -2303,7 +2305,7 @@ isert_reg_rdma_frwr(struct iscsi_conn *conn, struct iscsi_cmd *cmd, wr->fr_desc = NULL; } else { spin_lock_irqsave(&isert_conn->conn_lock, flags); - fr_desc = list_first_entry(&isert_conn->conn_frwr_pool, + fr_desc = list_first_entry(&isert_conn->conn_fr_pool, struct fast_reg_descriptor, list); list_del(&fr_desc->list); spin_unlock_irqrestore(&isert_conn->conn_lock, flags); @@ -2312,7 +2314,7 @@ isert_reg_rdma_frwr(struct iscsi_conn *conn, struct iscsi_cmd *cmd, ret = isert_fast_reg_mr(fr_desc, isert_cmd, isert_conn, ib_sge, offset, data_len); if (ret) { - list_add_tail(&fr_desc->list, &isert_conn->conn_frwr_pool); + list_add_tail(&fr_desc->list, &isert_conn->conn_fr_pool); goto unmap_sg; } } diff --git a/drivers/infiniband/ulp/isert/ib_isert.h b/drivers/infiniband/ulp/isert/ib_isert.h index dec74d4c4bad..708a069002f3 100644 --- a/drivers/infiniband/ulp/isert/ib_isert.h +++ b/drivers/infiniband/ulp/isert/ib_isert.h @@ -119,9 +119,9 @@ struct isert_conn { wait_queue_head_t conn_wait; wait_queue_head_t conn_wait_comp_err; struct kref conn_kref; - struct list_head conn_frwr_pool; - int conn_frwr_pool_size; - /* lock to protect frwr_pool */ + struct list_head conn_fr_pool; + int conn_fr_pool_size; + /* lock to protect fastreg pool */ spinlock_t conn_lock; #define ISERT_COMP_BATCH_COUNT 8 int conn_comp_batch; @@ -139,7 +139,7 @@ struct isert_cq_desc { }; struct isert_device { - int use_frwr; + int use_fastreg; int cqs_used; int refcount; int cq_active_qps[ISERT_MAX_CQ];