RDMA/cma: Add ability to specify type of service

[deliverable/linux.git] / drivers / infiniband / core / cma.c

diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c
index 32a0e66d2a235215bece711619ae36003660142d..19c9172f0cdc8b2fd442d086c40a11aba7ab0e59 100644 (file)
--- a/drivers/infiniband/core/cma.c
+++ b/drivers/infiniband/core/cma.c
@@ -138,6 +138,7 @@ struct rdma_id_private {
        u32                     qkey;
        u32                     qp_num;
        u8                      srq;
+       u8                      tos;
 };
 
 struct cma_multicast {
@@ -573,7 +574,7 @@ int rdma_init_qp_attr(struct rdma_cm_id *id, struct ib_qp_attr *qp_attr,
                break;
        case RDMA_TRANSPORT_IWARP:
                if (!id_priv->cm_id.iw) {
-                       qp_attr->qp_access_flags = IB_ACCESS_LOCAL_WRITE;
+                       qp_attr->qp_access_flags = 0;
                        *qp_attr_mask = IB_QP_STATE | IB_QP_ACCESS_FLAGS;
                } else
                        ret = iw_cm_init_qp_attr(id_priv->cm_id.iw, qp_attr,
@@ -1474,6 +1475,15 @@ err:
 }
 EXPORT_SYMBOL(rdma_listen);
 
+void rdma_set_service_type(struct rdma_cm_id *id, int tos)
+{
+       struct rdma_id_private *id_priv;
+
+       id_priv = container_of(id, struct rdma_id_private, id);
+       id_priv->tos = (u8) tos;
+}
+EXPORT_SYMBOL(rdma_set_service_type);
+
 static void cma_query_handler(int status, struct ib_sa_path_rec *path_rec,
                              void *context)
 {
@@ -1498,23 +1508,37 @@ static void cma_query_handler(int status, struct ib_sa_path_rec *path_rec,
 static int cma_query_ib_route(struct rdma_id_private *id_priv, int timeout_ms,
                              struct cma_work *work)
 {
-       struct rdma_dev_addr *addr = &id_priv->id.route.addr.dev_addr;
+       struct rdma_addr *addr = &id_priv->id.route.addr;
        struct ib_sa_path_rec path_rec;
+       ib_sa_comp_mask comp_mask;
+       struct sockaddr_in6 *sin6;
 
        memset(&path_rec, 0, sizeof path_rec);
-       ib_addr_get_sgid(addr, &path_rec.sgid);
-       ib_addr_get_dgid(addr, &path_rec.dgid);
-       path_rec.pkey = cpu_to_be16(ib_addr_get_pkey(addr));
+       ib_addr_get_sgid(&addr->dev_addr, &path_rec.sgid);
+       ib_addr_get_dgid(&addr->dev_addr, &path_rec.dgid);
+       path_rec.pkey = cpu_to_be16(ib_addr_get_pkey(&addr->dev_addr));
        path_rec.numb_path = 1;
        path_rec.reversible = 1;
+       path_rec.service_id = cma_get_service_id(id_priv->id.ps, &addr->dst_addr);
+
+       comp_mask = IB_SA_PATH_REC_DGID | IB_SA_PATH_REC_SGID |
+                   IB_SA_PATH_REC_PKEY | IB_SA_PATH_REC_NUMB_PATH |
+                   IB_SA_PATH_REC_REVERSIBLE | IB_SA_PATH_REC_SERVICE_ID;
+
+       if (addr->src_addr.sa_family == AF_INET) {
+               path_rec.qos_class = cpu_to_be16((u16) id_priv->tos);
+               comp_mask |= IB_SA_PATH_REC_QOS_CLASS;
+       } else {
+               sin6 = (struct sockaddr_in6 *) &addr->src_addr;
+               path_rec.traffic_class = (u8) (be32_to_cpu(sin6->sin6_flowinfo) >> 20);
+               comp_mask |= IB_SA_PATH_REC_TRAFFIC_CLASS;
+       }
 
        id_priv->query_id = ib_sa_path_rec_get(&sa_client, id_priv->id.device,
-                               id_priv->id.port_num, &path_rec,
-                               IB_SA_PATH_REC_DGID | IB_SA_PATH_REC_SGID |
-                               IB_SA_PATH_REC_PKEY | IB_SA_PATH_REC_NUMB_PATH |
-                               IB_SA_PATH_REC_REVERSIBLE,
-                               timeout_ms, GFP_KERNEL,
-                               cma_query_handler, work, &id_priv->query);
+                                              id_priv->id.port_num, &path_rec,
+                                              comp_mask, timeout_ms,
+                                              GFP_KERNEL, cma_query_handler,
+                                              work, &id_priv->query);
 
        return (id_priv->query_id < 0) ? id_priv->query_id : 0;
 }
@@ -2326,7 +2350,6 @@ static int cma_accept_ib(struct rdma_id_private *id_priv,
        rep.private_data_len = conn_param->private_data_len;
        rep.responder_resources = conn_param->responder_resources;
        rep.initiator_depth = conn_param->initiator_depth;
-       rep.target_ack_delay = CMA_CM_RESPONSE_TIMEOUT;
        rep.failover_accepted = 0;
        rep.flow_control = conn_param->flow_control;
        rep.rnr_retry_count = conn_param->rnr_retry_count;