diff options
Diffstat (limited to 'drivers/nvme')
| -rw-r--r-- | drivers/nvme/host/core.c | 5 | ||||
| -rw-r--r-- | drivers/nvme/host/fabrics.c | 14 | ||||
| -rw-r--r-- | drivers/nvme/host/fabrics.h | 6 | ||||
| -rw-r--r-- | drivers/nvme/host/tcp.c | 27 |
4 files changed, 50 insertions, 2 deletions
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c index e7441ccaa8db..bb8b242594f9 100644 --- a/drivers/nvme/host/core.c +++ b/drivers/nvme/host/core.c @@ -4134,6 +4134,11 @@ static int nvme_class_uevent(struct device *dev, struct kobj_uevent_env *env) ret = add_uevent_var(env, "NVME_HOST_TRADDR=%s", opts->host_traddr ?: "none"); + if (ret) + return ret; + + ret = add_uevent_var(env, "NVME_HOST_IFACE=%s", + opts->host_iface ?: "none"); } return ret; } diff --git a/drivers/nvme/host/fabrics.c b/drivers/nvme/host/fabrics.c index a2bb7fc63a73..76dc3eaf46f3 100644 --- a/drivers/nvme/host/fabrics.c +++ b/drivers/nvme/host/fabrics.c @@ -112,6 +112,9 @@ int nvmf_get_address(struct nvme_ctrl *ctrl, char *buf, int size) if (ctrl->opts->mask & NVMF_OPT_HOST_TRADDR) len += scnprintf(buf + len, size - len, "%shost_traddr=%s", (len) ? "," : "", ctrl->opts->host_traddr); + if (ctrl->opts->mask & NVMF_OPT_HOST_IFACE) + len += scnprintf(buf + len, size - len, "%shost_iface=%s", + (len) ? "," : "", ctrl->opts->host_iface); len += scnprintf(buf + len, size - len, "\n"); return len; @@ -545,6 +548,7 @@ static const match_table_t opt_tokens = { { NVMF_OPT_KATO, "keep_alive_tmo=%d" }, { NVMF_OPT_HOSTNQN, "hostnqn=%s" }, { NVMF_OPT_HOST_TRADDR, "host_traddr=%s" }, + { NVMF_OPT_HOST_IFACE, "host_iface=%s" }, { NVMF_OPT_HOST_ID, "hostid=%s" }, { NVMF_OPT_DUP_CONNECT, "duplicate_connect" }, { NVMF_OPT_DISABLE_SQFLOW, "disable_sqflow" }, @@ -754,6 +758,15 @@ static int nvmf_parse_options(struct nvmf_ctrl_options *opts, kfree(opts->host_traddr); opts->host_traddr = p; break; + case NVMF_OPT_HOST_IFACE: + p = match_strdup(args); + if (!p) { + ret = -ENOMEM; + goto out; + } + kfree(opts->host_iface); + opts->host_iface = p; + break; case NVMF_OPT_HOST_ID: p = match_strdup(args); if (!p) { @@ -938,6 +951,7 @@ void nvmf_free_options(struct nvmf_ctrl_options *opts) kfree(opts->trsvcid); kfree(opts->subsysnqn); kfree(opts->host_traddr); + kfree(opts->host_iface); kfree(opts); } EXPORT_SYMBOL_GPL(nvmf_free_options); diff --git a/drivers/nvme/host/fabrics.h b/drivers/nvme/host/fabrics.h index d7f7974dc208..c31dad69a773 100644 --- a/drivers/nvme/host/fabrics.h +++ b/drivers/nvme/host/fabrics.h @@ -66,6 +66,7 @@ enum { NVMF_OPT_NR_POLL_QUEUES = 1 << 18, NVMF_OPT_TOS = 1 << 19, NVMF_OPT_FAIL_FAST_TMO = 1 << 20, + NVMF_OPT_HOST_IFACE = 1 << 21, }; /** @@ -83,7 +84,9 @@ enum { * @trsvcid: The transport-specific TRSVCID field for a port on the * subsystem which is adding a controller. * @host_traddr: A transport-specific field identifying the NVME host port - * to use for the connection to the controller. + * to use for the connection to the controller. + * @host_iface: A transport-specific field identifying the NVME host + * interface to use for the connection to the controller. * @queue_size: Number of IO queue elements. * @nr_io_queues: Number of controller IO queues that will be established. * @reconnect_delay: Time between two consecutive reconnect attempts. @@ -108,6 +111,7 @@ struct nvmf_ctrl_options { char *traddr; char *trsvcid; char *host_traddr; + char *host_iface; size_t queue_size; unsigned int nr_io_queues; unsigned int reconnect_delay; diff --git a/drivers/nvme/host/tcp.c b/drivers/nvme/host/tcp.c index 34f4b3402f7c..5fc6c568c626 100644 --- a/drivers/nvme/host/tcp.c +++ b/drivers/nvme/host/tcp.c @@ -123,6 +123,7 @@ struct nvme_tcp_ctrl { struct blk_mq_tag_set admin_tag_set; struct sockaddr_storage addr; struct sockaddr_storage src_addr; + struct net_device *ndev; struct nvme_ctrl ctrl; struct work_struct err_work; @@ -1455,6 +1456,20 @@ static int nvme_tcp_alloc_queue(struct nvme_ctrl *nctrl, } } + if (nctrl->opts->mask & NVMF_OPT_HOST_IFACE) { + char *iface = nctrl->opts->host_iface; + sockptr_t optval = KERNEL_SOCKPTR(iface); + + ret = sock_setsockopt(queue->sock, SOL_SOCKET, SO_BINDTODEVICE, + optval, strlen(iface)); + if (ret) { + dev_err(nctrl->device, + "failed to bind to interface %s queue %d err %d\n", + iface, qid, ret); + goto err_sock; + } + } + queue->hdr_digest = nctrl->opts->hdr_digest; queue->data_digest = nctrl->opts->data_digest; if (queue->hdr_digest || queue->data_digest) { @@ -2515,6 +2530,16 @@ static struct nvme_ctrl *nvme_tcp_create_ctrl(struct device *dev, } } + if (opts->mask & NVMF_OPT_HOST_IFACE) { + ctrl->ndev = dev_get_by_name(&init_net, opts->host_iface); + if (!ctrl->ndev) { + pr_err("invalid interface passed: %s\n", + opts->host_iface); + ret = -ENODEV; + goto out_free_ctrl; + } + } + if (!opts->duplicate_connect && nvme_tcp_existing_controller(opts)) { ret = -EALREADY; goto out_free_ctrl; @@ -2571,7 +2596,7 @@ static struct nvmf_transport_ops nvme_tcp_transport = { NVMF_OPT_HOST_TRADDR | NVMF_OPT_CTRL_LOSS_TMO | NVMF_OPT_HDR_DIGEST | NVMF_OPT_DATA_DIGEST | NVMF_OPT_NR_WRITE_QUEUES | NVMF_OPT_NR_POLL_QUEUES | - NVMF_OPT_TOS, + NVMF_OPT_TOS | NVMF_OPT_HOST_IFACE, .create_ctrl = nvme_tcp_create_ctrl, }; |