diff options
50 files changed, 1687 insertions, 2273 deletions
diff --git a/Documentation/target/tcm_mod_builder.py b/Documentation/target/tcm_mod_builder.py index 2b47704f75cb..2ba71cea0172 100755 --- a/Documentation/target/tcm_mod_builder.py +++ b/Documentation/target/tcm_mod_builder.py @@ -237,8 +237,7 @@ def tcm_mod_build_configfs(proto_ident, fabric_mod_dir_var, fabric_mod_name): buf += "#include \"" + fabric_mod_name + "_base.h\"\n" buf += "#include \"" + fabric_mod_name + "_fabric.h\"\n\n" - buf += "/* Local pointer to allocated TCM configfs fabric module */\n" - buf += "struct target_fabric_configfs *" + fabric_mod_name + "_fabric_configfs;\n\n" + buf += "static const struct target_core_fabric_ops " + fabric_mod_name + "_ops;\n\n" buf += "static struct se_node_acl *" + fabric_mod_name + "_make_nodeacl(\n" buf += " struct se_portal_group *se_tpg,\n" @@ -309,8 +308,8 @@ def tcm_mod_build_configfs(proto_ident, fabric_mod_dir_var, fabric_mod_name): buf += " }\n" buf += " tpg->" + fabric_mod_port + " = " + fabric_mod_port + ";\n" buf += " tpg->" + fabric_mod_port + "_tpgt = tpgt;\n\n" - buf += " ret = core_tpg_register(&" + fabric_mod_name + "_fabric_configfs->tf_ops, wwn,\n" - buf += " &tpg->se_tpg, (void *)tpg,\n" + buf += " ret = core_tpg_register(&" + fabric_mod_name + "_ops, wwn,\n" + buf += " &tpg->se_tpg, tpg,\n" buf += " TRANSPORT_TPG_TYPE_NORMAL);\n" buf += " if (ret < 0) {\n" buf += " kfree(tpg);\n" @@ -370,7 +369,10 @@ def tcm_mod_build_configfs(proto_ident, fabric_mod_dir_var, fabric_mod_name): buf += " NULL,\n" buf += "};\n\n" - buf += "static struct target_core_fabric_ops " + fabric_mod_name + "_ops = {\n" + buf += "static const struct target_core_fabric_ops " + fabric_mod_name + "_ops = {\n" + buf += " .module = THIS_MODULE,\n" + buf += " .name = " + fabric_mod_name + ",\n" + buf += " .get_fabric_proto_ident = " + fabric_mod_name + "_get_fabric_proto_ident,\n" buf += " .get_fabric_name = " + fabric_mod_name + "_get_fabric_name,\n" buf += " .get_fabric_proto_ident = " + fabric_mod_name + "_get_fabric_proto_ident,\n" buf += " .tpg_get_wwn = " + fabric_mod_name + "_get_fabric_wwn,\n" @@ -413,75 +415,18 @@ def tcm_mod_build_configfs(proto_ident, fabric_mod_dir_var, fabric_mod_name): buf += " .fabric_drop_np = NULL,\n" buf += " .fabric_make_nodeacl = " + fabric_mod_name + "_make_nodeacl,\n" buf += " .fabric_drop_nodeacl = " + fabric_mod_name + "_drop_nodeacl,\n" - buf += "};\n\n" - - buf += "static int " + fabric_mod_name + "_register_configfs(void)\n" - buf += "{\n" - buf += " struct target_fabric_configfs *fabric;\n" - buf += " int ret;\n\n" - buf += " printk(KERN_INFO \"" + fabric_mod_name.upper() + " fabric module %s on %s/%s\"\n" - buf += " \" on \"UTS_RELEASE\"\\n\"," + fabric_mod_name.upper() + "_VERSION, utsname()->sysname,\n" - buf += " utsname()->machine);\n" - buf += " /*\n" - buf += " * Register the top level struct config_item_type with TCM core\n" - buf += " */\n" - buf += " fabric = target_fabric_configfs_init(THIS_MODULE, \"" + fabric_mod_name + "\");\n" - buf += " if (IS_ERR(fabric)) {\n" - buf += " printk(KERN_ERR \"target_fabric_configfs_init() failed\\n\");\n" - buf += " return PTR_ERR(fabric);\n" - buf += " }\n" - buf += " /*\n" - buf += " * Setup fabric->tf_ops from our local " + fabric_mod_name + "_ops\n" - buf += " */\n" - buf += " fabric->tf_ops = " + fabric_mod_name + "_ops;\n" - buf += " /*\n" - buf += " * Setup default attribute lists for various fabric->tf_cit_tmpl\n" - buf += " */\n" - buf += " fabric->tf_cit_tmpl.tfc_wwn_cit.ct_attrs = " + fabric_mod_name + "_wwn_attrs;\n" - buf += " fabric->tf_cit_tmpl.tfc_tpg_base_cit.ct_attrs = NULL;\n" - buf += " fabric->tf_cit_tmpl.tfc_tpg_attrib_cit.ct_attrs = NULL;\n" - buf += " fabric->tf_cit_tmpl.tfc_tpg_param_cit.ct_attrs = NULL;\n" - buf += " fabric->tf_cit_tmpl.tfc_tpg_np_base_cit.ct_attrs = NULL;\n" - buf += " fabric->tf_cit_tmpl.tfc_tpg_nacl_base_cit.ct_attrs = NULL;\n" - buf += " fabric->tf_cit_tmpl.tfc_tpg_nacl_attrib_cit.ct_attrs = NULL;\n" - buf += " fabric->tf_cit_tmpl.tfc_tpg_nacl_auth_cit.ct_attrs = NULL;\n" - buf += " fabric->tf_cit_tmpl.tfc_tpg_nacl_param_cit.ct_attrs = NULL;\n" - buf += " /*\n" - buf += " * Register the fabric for use within TCM\n" - buf += " */\n" - buf += " ret = target_fabric_configfs_register(fabric);\n" - buf += " if (ret < 0) {\n" - buf += " printk(KERN_ERR \"target_fabric_configfs_register() failed\"\n" - buf += " \" for " + fabric_mod_name.upper() + "\\n\");\n" - buf += " return ret;\n" - buf += " }\n" - buf += " /*\n" - buf += " * Setup our local pointer to *fabric\n" - buf += " */\n" - buf += " " + fabric_mod_name + "_fabric_configfs = fabric;\n" - buf += " printk(KERN_INFO \"" + fabric_mod_name.upper() + "[0] - Set fabric -> " + fabric_mod_name + "_fabric_configfs\\n\");\n" - buf += " return 0;\n" - buf += "};\n\n" - buf += "static void __exit " + fabric_mod_name + "_deregister_configfs(void)\n" - buf += "{\n" - buf += " if (!" + fabric_mod_name + "_fabric_configfs)\n" - buf += " return;\n\n" - buf += " target_fabric_configfs_deregister(" + fabric_mod_name + "_fabric_configfs);\n" - buf += " " + fabric_mod_name + "_fabric_configfs = NULL;\n" - buf += " printk(KERN_INFO \"" + fabric_mod_name.upper() + "[0] - Cleared " + fabric_mod_name + "_fabric_configfs\\n\");\n" + buf += "\n" + buf += " .tfc_wwn_attrs = " + fabric_mod_name + "_wwn_attrs;\n" buf += "};\n\n" buf += "static int __init " + fabric_mod_name + "_init(void)\n" buf += "{\n" - buf += " int ret;\n\n" - buf += " ret = " + fabric_mod_name + "_register_configfs();\n" - buf += " if (ret < 0)\n" - buf += " return ret;\n\n" - buf += " return 0;\n" + buf += " return target_register_template(" + fabric_mod_name + "_ops);\n" buf += "};\n\n" + buf += "static void __exit " + fabric_mod_name + "_exit(void)\n" buf += "{\n" - buf += " " + fabric_mod_name + "_deregister_configfs();\n" + buf += " target_unregister_template(" + fabric_mod_name + "_ops);\n" buf += "};\n\n" buf += "MODULE_DESCRIPTION(\"" + fabric_mod_name.upper() + " series fabric driver\");\n" diff --git a/Documentation/target/tcmu-design.txt b/Documentation/target/tcmu-design.txt index 5518465290bf..43e94ea6d2ca 100644 --- a/Documentation/target/tcmu-design.txt +++ b/Documentation/target/tcmu-design.txt @@ -138,27 +138,40 @@ signals the kernel via a 4-byte write(). When cmd_head equals cmd_tail, the ring is empty -- no commands are currently waiting to be processed by userspace. -TCMU commands start with a common header containing "len_op", a 32-bit -value that stores the length, as well as the opcode in the lowest -unused bits. Currently only two opcodes are defined, TCMU_OP_PAD and -TCMU_OP_CMD. When userspace encounters a command with PAD opcode, it -should skip ahead by the bytes in "length". (The kernel inserts PAD -entries to ensure each CMD entry fits contigously into the circular -buffer.) - -When userspace handles a CMD, it finds the SCSI CDB (Command Data -Block) via tcmu_cmd_entry.req.cdb_off. This is an offset from the -start of the overall shared memory region, not the entry. The data -in/out buffers are accessible via tht req.iov[] array. Note that -each iov.iov_base is also an offset from the start of the region. - -TCMU currently does not support BIDI operations. +TCMU commands are 8-byte aligned. They start with a common header +containing "len_op", a 32-bit value that stores the length, as well as +the opcode in the lowest unused bits. It also contains cmd_id and +flags fields for setting by the kernel (kflags) and userspace +(uflags). + +Currently only two opcodes are defined, TCMU_OP_CMD and TCMU_OP_PAD. + +When the opcode is CMD, the entry in the command ring is a struct +tcmu_cmd_entry. Userspace finds the SCSI CDB (Command Data Block) via +tcmu_cmd_entry.req.cdb_off. This is an offset from the start of the +overall shared memory region, not the entry. The data in/out buffers +are accessible via tht req.iov[] array. iov_cnt contains the number of +entries in iov[] needed to describe either the Data-In or Data-Out +buffers. For bidirectional commands, iov_cnt specifies how many iovec +entries cover the Data-Out area, and iov_bidi_count specifies how many +iovec entries immediately after that in iov[] cover the Data-In +area. Just like other fields, iov.iov_base is an offset from the start +of the region. When completing a command, userspace sets rsp.scsi_status, and rsp.sense_buffer if necessary. Userspace then increments mailbox.cmd_tail by entry.hdr.length (mod cmdr_size) and signals the kernel via the UIO method, a 4-byte write to the file descriptor. +When the opcode is PAD, userspace only updates cmd_tail as above -- +it's a no-op. (The kernel inserts PAD entries to ensure each CMD entry +is contiguous within the command ring.) + +More opcodes may be added in the future. If userspace encounters an +opcode it does not handle, it must set UNKNOWN_OP bit (bit 0) in +hdr.uflags, update cmd_tail, and proceed with processing additional +commands, if any. + The Data Area: This is shared-memory space after the command ring. The organization diff --git a/drivers/infiniband/ulp/isert/ib_isert.c b/drivers/infiniband/ulp/isert/ib_isert.c index 075b19cc78e8..327529ee85eb 100644 --- a/drivers/infiniband/ulp/isert/ib_isert.c +++ b/drivers/infiniband/ulp/isert/ib_isert.c @@ -76,12 +76,12 @@ isert_prot_cmd(struct isert_conn *conn, struct se_cmd *cmd) static void isert_qp_event_callback(struct ib_event *e, void *context) { - struct isert_conn *isert_conn = (struct isert_conn *)context; + struct isert_conn *isert_conn = context; isert_err("conn %p event: %d\n", isert_conn, e->event); switch (e->event) { case IB_EVENT_COMM_EST: - rdma_notify(isert_conn->conn_cm_id, IB_EVENT_COMM_EST); + rdma_notify(isert_conn->cm_id, IB_EVENT_COMM_EST); break; case IB_EVENT_QP_LAST_WQE_REACHED: isert_warn("Reached TX IB_EVENT_QP_LAST_WQE_REACHED\n"); @@ -107,13 +107,12 @@ isert_query_device(struct ib_device *ib_dev, struct ib_device_attr *devattr) return 0; } -static int -isert_conn_setup_qp(struct isert_conn *isert_conn, struct rdma_cm_id *cma_id) +static struct isert_comp * +isert_comp_get(struct isert_conn *isert_conn) { - struct isert_device *device = isert_conn->conn_device; - struct ib_qp_init_attr attr; + struct isert_device *device = isert_conn->device; struct isert_comp *comp; - int ret, i, min = 0; + int i, min = 0; mutex_lock(&device_list_mutex); for (i = 0; i < device->comps_used; i++) @@ -122,9 +121,30 @@ isert_conn_setup_qp(struct isert_conn *isert_conn, struct rdma_cm_id *cma_id) min = i; comp = &device->comps[min]; comp->active_qps++; + mutex_unlock(&device_list_mutex); + isert_info("conn %p, using comp %p min_index: %d\n", isert_conn, comp, min); + + return comp; +} + +static void +isert_comp_put(struct isert_comp *comp) +{ + mutex_lock(&device_list_mutex); + comp->active_qps--; mutex_unlock(&device_list_mutex); +} + +static struct ib_qp * +isert_create_qp(struct isert_conn *isert_conn, + struct isert_comp *comp, + struct rdma_cm_id *cma_id) +{ + struct isert_device *device = isert_conn->device; + struct ib_qp_init_attr attr; + int ret; memset(&attr, 0, sizeof(struct ib_qp_init_attr)); attr.event_handler = isert_qp_event_callback; @@ -149,19 +169,31 @@ isert_conn_setup_qp(struct isert_conn *isert_conn, struct rdma_cm_id *cma_id) if (device->pi_capable) attr.create_flags |= IB_QP_CREATE_SIGNATURE_EN; - ret = rdma_create_qp(cma_id, isert_conn->conn_pd, &attr); + ret = rdma_create_qp(cma_id, device->pd, &attr); if (ret) { isert_err("rdma_create_qp failed for cma_id %d\n", ret); + return ERR_PTR(ret); + } + + return cma_id->qp; +} + +static int +isert_conn_setup_qp(struct isert_conn *isert_conn, struct rdma_cm_id *cma_id) +{ + struct isert_comp *comp; + int ret; + + comp = isert_comp_get(isert_conn); + isert_conn->qp = isert_create_qp(isert_conn, comp, cma_id); + if (IS_ERR(isert_conn->qp)) { + ret = PTR_ERR(isert_conn->qp); goto err; } - isert_conn->conn_qp = cma_id->qp; return 0; err: - mutex_lock(&device_list_mutex); - comp->active_qps--; - mutex_unlock(&device_list_mutex); - + isert_comp_put(comp); return ret; } @@ -174,18 +206,19 @@ isert_cq_event_callback(struct ib_event *e, void *context) static int isert_alloc_rx_descriptors(struct isert_conn *isert_conn) { - struct ib_device *ib_dev = isert_conn->conn_cm_id->device; + struct isert_device *device = isert_conn->device; + struct ib_device *ib_dev = device->ib_device; struct iser_rx_desc *rx_desc; struct ib_sge *rx_sg; u64 dma_addr; int i, j; - isert_conn->conn_rx_descs = kzalloc(ISERT_QP_MAX_RECV_DTOS * + isert_conn->rx_descs = kzalloc(ISERT_QP_MAX_RECV_DTOS * sizeof(struct iser_rx_desc), GFP_KERNEL); - if (!isert_conn->conn_rx_descs) + if (!isert_conn->rx_descs) goto fail; - rx_desc = isert_conn->conn_rx_descs; + rx_desc = isert_conn->rx_descs; for (i = 0; i < ISERT_QP_MAX_RECV_DTOS; i++, rx_desc++) { dma_addr = ib_dma_map_single(ib_dev, (void *)rx_desc, @@ -198,21 +231,21 @@ isert_alloc_rx_descriptors(struct isert_conn *isert_conn) rx_sg = &rx_desc->rx_sg; rx_sg->addr = rx_desc->dma_addr; rx_sg->length = ISER_RX_PAYLOAD_SIZE; - rx_sg->lkey = isert_conn->conn_mr->lkey; + rx_sg->lkey = device->mr->lkey; } - isert_conn->conn_rx_desc_head = 0; + isert_conn->rx_desc_head = 0; return 0; dma_map_fail: - rx_desc = isert_conn->conn_rx_descs; + rx_desc = isert_conn->rx_descs; for (j = 0; j < i; j++, rx_desc++) { ib_dma_unmap_single(ib_dev, rx_desc->dma_addr, ISER_RX_PAYLOAD_SIZE, DMA_FROM_DEVICE); } - kfree(isert_conn->conn_rx_descs); - isert_conn->conn_rx_descs = NULL; + kfree(isert_conn->rx_descs); + isert_conn->rx_descs = NULL; fail: isert_err("conn %p failed to allocate rx descriptors\n", isert_conn); @@ -222,59 +255,51 @@ fail: static void isert_free_rx_descriptors(struct isert_conn *isert_conn) { - struct ib_device *ib_dev = isert_conn->conn_cm_id->device; + struct ib_device *ib_dev = isert_conn->device->ib_device; struct iser_rx_desc *rx_desc; int i; - if (!isert_conn->conn_rx_descs) + if (!isert_conn->rx_descs) return; - rx_desc = isert_conn->conn_rx_descs; + rx_desc = isert_conn->rx_descs; for (i = 0; i < ISERT_QP_MAX_RECV_DTOS; i++, rx_desc++) { ib_dma_unmap_single(ib_dev, rx_desc->dma_addr, ISER_RX_PAYLOAD_SIZE, DMA_FROM_DEVICE); } - kfree(isert_conn->conn_rx_descs); - isert_conn->conn_rx_descs = NULL; + kfree(isert_conn->rx_descs); + isert_conn->rx_descs = NULL; } static void isert_cq_work(struct work_struct *); static void isert_cq_callback(struct ib_cq *, void *); -static int -isert_create_device_ib_res(struct isert_device *device) +static void +isert_free_comps(struct isert_device *device) { - struct ib_device *ib_dev = device->ib_device; - struct ib_device_attr *dev_attr; - int ret = 0, i; - int max_cqe; - - dev_attr = &device->dev_attr; - ret = isert_query_device(ib_dev, dev_attr); - if (ret) - return ret; + int i; - max_cqe = min(ISER_MAX_CQ_LEN, dev_attr->max_cqe); + for (i = 0; i < device->comps_used; i++) { + struct isert_comp *comp = &device->comps[i]; - /* asign function handlers */ - if (dev_attr->device_cap_flags & IB_DEVICE_MEM_MGT_EXTENSIONS && - dev_attr->device_cap_flags & IB_DEVICE_SIGNATURE_HANDOVER) { - device->use_fastreg = 1; - device->reg_rdma_mem = isert_reg_rdma; - device->unreg_rdma_mem = isert_unreg_rdma; - } else { - device->use_fastreg = 0; - device->reg_rdma_mem = isert_map_rdma; - device->unreg_rdma_mem = isert_unmap_cmd; + if (comp->cq) { + cancel_work_sync(&comp->work); + ib_destroy_cq(comp->cq); + } } + kfree(device->comps); +} - /* Check signature cap */ - device->pi_capable = dev_attr->device_cap_flags & - IB_DEVICE_SIGNATURE_HANDOVER ? true : false; +static int +isert_alloc_comps(struct isert_device *device, + struct ib_device_attr *attr) +{ + int i, max_cqe, ret = 0; device->comps_used = min(ISERT_MAX_CQ, min_t(int, num_online_cpus(), - device->ib_device->num_comp_vectors)); + device->ib_device->num_comp_vectors)); + isert_info("Using %d CQs, %s supports %d vectors support " "Fast registration %d pi_capable %d\n", device->comps_used, device->ib_device->name, @@ -288,6 +313,8 @@ isert_create_device_ib_res(struct isert_device *device) return -ENOMEM; } + max_cqe = min(ISER_MAX_CQ_LEN, attr->max_cqe); + for (i = 0; i < device->comps_used; i++) { struct isert_comp *comp = &device->comps[i]; @@ -299,6 +326,7 @@ isert_create_device_ib_res(struct isert_device *device) (void *)comp, max_cqe, i); if (IS_ERR(comp->cq)) { + isert_err("Unable to allocate cq\n"); ret = PTR_ERR(comp->cq); comp->cq = NULL; goto out_cq; @@ -310,40 +338,79 @@ isert_create_device_ib_res(struct isert_device *device) } return 0; - out_cq: - for (i = 0; i < device->comps_used; i++) { - struct isert_comp *comp = &device->comps[i]; + isert_free_comps(device); + return ret; +} - if (comp->cq) { - cancel_work_sync(&comp->work); - ib_destroy_cq(comp->cq); - } +static int +isert_create_device_ib_res(struct isert_device *device) +{ + struct ib_device_attr *dev_attr; + int ret; + + dev_attr = &device->dev_attr; + ret = isert_query_device(device->ib_device, dev_attr); + if (ret) + return ret; + + /* asign function handlers */ + if (dev_attr->device_cap_flags & IB_DEVICE_MEM_MGT_EXTENSIONS && + dev_attr->device_cap_flags & IB_DEVICE_SIGNATURE_HANDOVER) { + device->use_fastreg = 1; + device->reg_rdma_mem = isert_reg_rdma; + device->unreg_rdma_mem = isert_unreg_rdma; + } else { + device->use_fastreg = 0; + device->reg_rdma_mem = isert_map_rdma; + device->unreg_rdma_mem = isert_unmap_cmd; } - kfree(device->comps); + ret = isert_alloc_comps(device, dev_attr); + if (ret) + return ret; + + device->pd = ib_alloc_pd(device->ib_device); + if (IS_ERR(device->pd)) { + ret = PTR_ERR(device->pd); + isert_err("failed to allocate pd, device %p, ret=%d\n", + device, ret); + goto out_cq; + } + + device->mr = ib_get_dma_mr(device->pd, IB_ACCESS_LOCAL_WRITE); + if (IS_ERR(device->mr)) { + ret = PTR_ERR(device->mr); + isert_err("failed to create dma mr, device %p, ret=%d\n", + device, ret); + goto out_mr; + } + + /* Check signature cap */ + device->pi_capable = dev_attr->device_cap_flags & + IB_DEVICE_SIGNATURE_HANDOVER ? true : false; + + return 0; + +out_mr: + ib_dealloc_pd(device->pd); +out_cq: + isert_free_comps(device); return ret; } static void isert_free_device_ib_res(struct isert_device *device) { - int i; - isert_info("device %p\n", device); - for (i = 0; i < device->comps_used; i++) { - struct isert_comp *comp = &device->comps[i]; - - cancel_work_sync(&comp->work); - ib_destroy_cq(comp->cq); - comp->cq = NULL; - } - kfree(device->comps); + ib_dereg_mr(device->mr); + ib_dealloc_pd(device->pd); + isert_free_comps(device); } static void -isert_device_try_release(struct isert_device *device) +isert_device_put(struct isert_device *device) { mutex_lock(&device_list_mutex); device->refcount--; @@ -357,7 +424,7 @@ isert_device_try_release(struct isert_device *device) } static struct isert_device * -isert_device_find_by_ib_dev(struct rdma_cm_id *cma_id) +isert_device_get(struct rdma_cm_id *cma_id) { struct isert_device *device; int ret; @@ -404,13 +471,13 @@ 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_fr_pool)) + if (list_empty(&isert_conn->fr_pool)) return; isert_info("Freeing conn %p fastreg pool", isert_conn); list_for_each_entry_safe(fr_desc, tmp, - &isert_conn->conn_fr_pool, list) { + &isert_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); @@ -424,9 +491,9 @@ isert_conn_free_fastreg_pool(struct isert_conn *isert_conn) ++i; } - if (i < isert_conn->conn_fr_pool_size) + if (i < isert_conn->fr_pool_size) isert_warn("Pool still has %d regions registered\n", - isert_conn->conn_fr_pool_size - i); + isert_conn->fr_pool_size - i); } static int @@ -526,7 +593,7 @@ static int isert_conn_create_fastreg_pool(struct isert_conn *isert_conn) { struct fast_reg_descriptor *fr_desc; - struct isert_device *device = isert_conn->conn_device; + struct isert_device *device = isert_conn->device; struct se_session *se_sess = isert_conn->conn->sess->se_sess; struct se_node_acl *se_nacl = se_sess->se_node_acl; int i, ret, tag_num; @@ -537,7 +604,7 @@ isert_conn_create_fastreg_pool(struct isert_conn *isert_conn) tag_num = max_t(u32, ISCSIT_MIN_TAGS, se_nacl->queue_depth); tag_num = (tag_num * 2) + ISCSIT_EXTRA_TAGS; - isert_conn->conn_fr_pool_size = 0; + isert_conn->fr_pool_size = 0; for (i = 0; i < tag_num; i++) { fr_desc = kzalloc(sizeof(*fr_desc), GFP_KERNEL); if (!fr_desc) { @@ -547,7 +614,7 @@ isert_conn_create_fastreg_pool(struct isert_conn *isert_conn) } ret = isert_create_fr_desc(device->ib_device, - isert_conn->conn_pd, fr_desc); + device->pd, fr_desc); if (ret) { isert_err("Failed to create fastreg descriptor err=%d\n", ret); @@ -555,12 +622,12 @@ isert_conn_create_fastreg_pool(struct isert_conn *isert_conn) goto err; } - list_add_tail(&fr_desc->list, &isert_conn->conn_fr_pool); - isert_conn->conn_fr_pool_size++; + list_add_tail(&fr_desc->list, &isert_conn->fr_pool); + isert_conn->fr_pool_size++; } isert_dbg("Creating conn %p fastreg pool size=%d", - isert_conn, isert_conn->conn_fr_pool_size); + isert_conn, isert_conn->fr_pool_size); return 0; @@ -569,55 +636,50 @@ err: return ret; } -static int -isert_connect_request(struct rdma_cm_id *cma_id, struct rdma_cm_event *event) +static void +isert_init_conn(struct isert_conn *isert_conn) { - struct isert_np *isert_np = cma_id->context; - struct iscsi_np *np = isert_np->np; - struct isert_conn *isert_conn; - struct isert_device *device; - struct ib_device *ib_dev = cma_id->device; - int ret = 0; - - spin_lock_bh(&np->np_thread_lock); - if (!np->enabled) { - spin_unlock_bh(&np->np_thread_lock); - isert_dbg("iscsi_np is not enabled, reject connect request\n"); - return rdma_reject(cma_id, NULL, 0); - } - spin_unlock_bh(&np->np_thread_lock); - - isert_dbg("cma_id: %p, portal: %p\n", - cma_id, cma_id->context); - - isert_conn = kzalloc(sizeof(struct isert_conn), GFP_KERNEL); - if (!isert_conn) { - isert_err("Unable to allocate isert_conn\n"); - return -ENOMEM; - } isert_conn->state = ISER_CONN_INIT; - INIT_LIST_HEAD(&isert_conn->conn_accept_node); - init_completion(&isert_conn->conn_login_comp); |