diff options
| -rw-r--r-- | fs/ksmbd/transport_rdma.c | 102 |
1 files changed, 59 insertions, 43 deletions
diff --git a/fs/ksmbd/transport_rdma.c b/fs/ksmbd/transport_rdma.c index f89b64e27836..0fd706d01790 100644 --- a/fs/ksmbd/transport_rdma.c +++ b/fs/ksmbd/transport_rdma.c @@ -568,6 +568,7 @@ static void recv_done(struct ib_cq *cq, struct ib_wc *wc) } t->negotiation_requested = true; t->full_packet_received = true; + enqueue_reassembly(t, recvmsg, 0); wake_up_interruptible(&t->wait_status); break; case SMB_DIRECT_MSG_DATA_TRANSFER: { @@ -1594,19 +1595,13 @@ static int smb_direct_accept_client(struct smb_direct_transport *t) pr_err("error at rdma_accept: %d\n", ret); return ret; } - - wait_event_interruptible(t->wait_status, - t->status != SMB_DIRECT_CS_NEW); - if (t->status != SMB_DIRECT_CS_CONNECTED) - return -ENOTCONN; return 0; } -static int smb_direct_negotiate(struct smb_direct_transport *t) +static int smb_direct_prepare_negotiation(struct smb_direct_transport *t) { int ret; struct smb_direct_recvmsg *recvmsg; - struct smb_direct_negotiate_req *req; recvmsg = get_free_recvmsg(t); if (!recvmsg) @@ -1616,44 +1611,20 @@ static int smb_direct_negotiate(struct smb_direct_transport *t) ret = smb_direct_post_recv(t, recvmsg); if (ret) { pr_err("Can't post recv: %d\n", ret); - goto out; + goto out_err; } t->negotiation_requested = false; ret = smb_direct_accept_client(t); if (ret) { pr_err("Can't accept client\n"); - goto out; + goto out_err; } smb_direct_post_recv_credits(&t->post_recv_credits_work.work); - - ksmbd_debug(RDMA, "Waiting for SMB_DIRECT negotiate request\n"); - ret = wait_event_interruptible_timeout(t->wait_status, - t->negotiation_requested || - t->status == SMB_DIRECT_CS_DISCONNECTED, - SMB_DIRECT_NEGOTIATE_TIMEOUT * HZ); - if (ret <= 0 || t->status == SMB_DIRECT_CS_DISCONNECTED) { - ret = ret < 0 ? ret : -ETIMEDOUT; - goto out; - } - - ret = smb_direct_check_recvmsg(recvmsg); - if (ret == -ECONNABORTED) - goto out; - - req = (struct smb_direct_negotiate_req *)recvmsg->packet; - t->max_recv_size = min_t(int, t->max_recv_size, - le32_to_cpu(req->preferred_send_size)); - t->max_send_size = min_t(int, t->max_send_size, - le32_to_cpu(req->max_receive_size)); - t->max_fragmented_send_size = - le32_to_cpu(req->max_fragmented_size); - - ret = smb_direct_send_negotiate_response(t, ret); -out: - if (recvmsg) - put_recvmsg(t, recvmsg); + return 0; +out_err: + put_recvmsg(t, recvmsg); return ret; } @@ -1890,6 +1861,47 @@ err: static int smb_direct_prepare(struct ksmbd_transport *t) { struct smb_direct_transport *st = smb_trans_direct_transfort(t); + struct smb_direct_recvmsg *recvmsg; + struct smb_direct_negotiate_req *req; + int ret; + + ksmbd_debug(RDMA, "Waiting for SMB_DIRECT negotiate request\n"); + ret = wait_event_interruptible_timeout(st->wait_status, + st->negotiation_requested || + st->status == SMB_DIRECT_CS_DISCONNECTED, + SMB_DIRECT_NEGOTIATE_TIMEOUT * HZ); + if (ret <= 0 || st->status == SMB_DIRECT_CS_DISCONNECTED) + return ret < 0 ? ret : -ETIMEDOUT; + + recvmsg = get_first_reassembly(st); + if (!recvmsg) + return -ECONNABORTED; + + ret = smb_direct_check_recvmsg(recvmsg); + if (ret == -ECONNABORTED) + goto out; + + req = (struct smb_direct_negotiate_req *)recvmsg->packet; + st->max_recv_size = min_t(int, st->max_recv_size, + le32_to_cpu(req->preferred_send_size)); + st->max_send_size = min_t(int, st->max_send_size, + le32_to_cpu(req->max_receive_size)); + st->max_fragmented_send_size = + le32_to_cpu(req->max_fragmented_size); + + ret = smb_direct_send_negotiate_response(st, ret); +out: + spin_lock_irq(&st->reassembly_queue_lock); + st->reassembly_queue_length--; + list_del(&recvmsg->list); + spin_unlock_irq(&st->reassembly_queue_lock); + put_recvmsg(st, recvmsg); + + return ret; +} + +static int smb_direct_connect(struct smb_direct_transport *st) +{ int ret; struct ib_qp_cap qp_cap; @@ -1911,13 +1923,11 @@ static int smb_direct_prepare(struct ksmbd_transport *t) return ret; } - ret = smb_direct_negotiate(st); + ret = smb_direct_prepare_negotiation(st); if (ret) { pr_err("Can't negotiate: %d\n", ret); return ret; } - - st->status = SMB_DIRECT_CS_CONNECTED; return 0; } @@ -1933,6 +1943,7 @@ static bool rdma_frwr_is_supported(struct ib_device_attr *attrs) static int smb_direct_handle_connect_request(struct rdma_cm_id *new_cm_id) { struct smb_direct_transport *t; + int ret; if (!rdma_frwr_is_supported(&new_cm_id->device->attrs)) { ksmbd_debug(RDMA, @@ -1945,18 +1956,23 @@ static int smb_direct_handle_connect_request(struct rdma_cm_id *new_cm_id) if (!t) return -ENOMEM; + ret = smb_direct_connect(t); + if (ret) + goto out_err; + KSMBD_TRANS(t)->handler = kthread_run(ksmbd_conn_handler_loop, KSMBD_TRANS(t)->conn, "ksmbd:r%u", smb_direct_port); if (IS_ERR(KSMBD_TRANS(t)->handler)) { - int ret = PTR_ERR(KSMBD_TRANS(t)->handler); - + ret = PTR_ERR(KSMBD_TRANS(t)->handler); pr_err("Can't start thread\n"); - free_transport(t); - return ret; + goto out_err; } return 0; +out_err: + free_transport(t); + return ret; } static int smb_direct_listen_handler(struct rdma_cm_id *cm_id, |