1 files changed, 31 insertions, 5 deletions

diff --git a/drivers/nvme/host/tcp.c b/drivers/nvme/host/tcp.c
index 0222e23f5936..8cb15ee5b249 100644
--- a/drivers/nvme/host/tcp.c
+++ b/drivers/nvme/host/tcp.c
@@ -943,7 +943,6 @@ static int nvme_tcp_try_send_data(struct nvme_tcp_request *req)
 		if (ret <= 0)
 			return ret;
 
-		nvme_tcp_advance_req(req, ret);
 		if (queue->data_digest)
 			nvme_tcp_ddgst_update(queue->snd_hash, page,
 					offset, ret);
@@ -960,6 +959,7 @@ static int nvme_tcp_try_send_data(struct nvme_tcp_request *req)
 			}
 			return 1;
 		}
+		nvme_tcp_advance_req(req, ret);
 	}
 	return -EAGAIN;
 }
@@ -1140,7 +1140,8 @@ static void nvme_tcp_io_work(struct work_struct *w)
 				pending = true;
 			else if (unlikely(result < 0))
 				break;
-		}
+		} else
+			pending = !llist_empty(&queue->req_list);
 
 		result = nvme_tcp_try_recv(queue);
 		if (result > 0)
@@ -1454,6 +1455,20 @@ 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) {
@@ -1558,7 +1573,7 @@ static int nvme_tcp_start_queue(struct nvme_ctrl *nctrl, int idx)
 	int ret;
 
 	if (idx)
-		ret = nvmf_connect_io_queue(nctrl, idx, false);
+		ret = nvmf_connect_io_queue(nctrl, idx);
 	else
 		ret = nvmf_connect_admin_queue(nctrl);
 
@@ -1972,11 +1987,13 @@ static int nvme_tcp_setup_ctrl(struct nvme_ctrl *ctrl, bool new)
 		return ret;
 
 	if (ctrl->icdoff) {
+		ret = -EOPNOTSUPP;
 		dev_err(ctrl->device, "icdoff is not supported!\n");
 		goto destroy_admin;
 	}
 
-	if (!(ctrl->sgls & ((1 << 0) | (1 << 1)))) {
+	if (!nvme_ctrl_sgl_supported(ctrl)) {
+		ret = -EOPNOTSUPP;
 		dev_err(ctrl->device, "Mandatory sgls are not supported!\n");
 		goto destroy_admin;
 	}
@@ -2514,6 +2531,15 @@ static struct nvme_ctrl *nvme_tcp_create_ctrl(struct device *dev,
 		}
 	}
 
+	if (opts->mask & NVMF_OPT_HOST_IFACE) {
+		if (!__dev_get_by_name(&init_net, opts->host_iface)) {
+			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;
@@ -2570,7 +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,
 };