RDMA/iwcm: Set initiator depth and responder resources to device max values
authorSteve Wise <swise@opengridcomputing.com>
Mon, 29 Oct 2007 16:34:05 +0000 (11:34 -0500)
committerRoland Dreier <rolandd@cisco.com>
Fri, 25 Jan 2008 22:15:25 +0000 (14:15 -0800)
Set the initiator depth and responder resources to the device max
values for new connect request events in the iWARP connection manager.

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
drivers/infiniband/core/cma.c

index 0751697ef984a87e7f688238a10760127fd7383f..5a80e74731c86bda3bd9d10d13dc288f54d4e16f 100644 (file)
@@ -1262,6 +1262,7 @@ static int iw_conn_req_handler(struct iw_cm_id *cm_id,
        struct net_device *dev = NULL;
        struct rdma_cm_event event;
        int ret;
+       struct ib_device_attr attr;
 
        listen_id = cm_id->context;
        if (cma_disable_remove(listen_id, CMA_LISTEN))
@@ -1311,10 +1312,19 @@ static int iw_conn_req_handler(struct iw_cm_id *cm_id,
        sin = (struct sockaddr_in *) &new_cm_id->route.addr.dst_addr;
        *sin = iw_event->remote_addr;
 
+       ret = ib_query_device(conn_id->id.device, &attr);
+       if (ret) {
+               cma_enable_remove(conn_id);
+               rdma_destroy_id(new_cm_id);
+               goto out;
+       }
+
        memset(&event, 0, sizeof event);
        event.event = RDMA_CM_EVENT_CONNECT_REQUEST;
        event.param.conn.private_data = iw_event->private_data;
        event.param.conn.private_data_len = iw_event->private_data_len;
+       event.param.conn.initiator_depth = attr.max_qp_init_rd_atom;
+       event.param.conn.responder_resources = attr.max_qp_rd_atom;
        ret = conn_id->id.event_handler(&conn_id->id, &event);
        if (ret) {
                /* User wants to destroy the CM ID */