IB/cm: Pass the sgid_attr through various events

Make the sgid_attr available along with path information to the event
consumer, this allows the consumer to keep using the same GID table entry
as the event is related to.

Signed-off-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>

drivers/infiniband/core/cm.c

@@ -3671,7 +3671,8 @@ error:	spin_unlock_irqrestore(&cm_id_priv->lock, flags);
 }
 EXPORT_SYMBOL(ib_send_cm_sidr_rep);
 
-static void cm_format_sidr_rep_event(struct cm_work *work)
+static void cm_format_sidr_rep_event(struct cm_work *work,
+				     const struct cm_id_private *cm_id_priv)
 {
 	struct cm_sidr_rep_msg *sidr_rep_msg;
 	struct ib_cm_sidr_rep_event_param *param;
@@ -3684,6 +3685,7 @@ static void cm_format_sidr_rep_event(struct cm_work *work)
 	param->qpn = be32_to_cpu(cm_sidr_rep_get_qpn(sidr_rep_msg));
 	param->info = &sidr_rep_msg->info;
 	param->info_len = sidr_rep_msg->info_length;
+	param->sgid_attr = cm_id_priv->av.ah_attr.grh.sgid_attr;
 	work->cm_event.private_data = &sidr_rep_msg->private_data;
 }
 
@@ -3707,7 +3709,7 @@ static int cm_sidr_rep_handler(struct cm_work *work)
 	ib_cancel_mad(cm_id_priv->av.port->mad_agent, cm_id_priv->msg);
 	spin_unlock_irq(&cm_id_priv->lock);
 
-	cm_format_sidr_rep_event(work);
+	cm_format_sidr_rep_event(work, cm_id_priv);
 	cm_process_work(cm_id_priv, work);
 	return 0;
 out:

drivers/infiniband/core/cma.c

@@ -3581,6 +3581,7 @@ static int cma_resolve_ib_udp(struct rdma_id_private *id_priv,
 	id_priv->cm_id.ib = id;
 
 	req.path = id_priv->id.route.path_rec;
+	req.sgid_attr = id_priv->id.route.addr.dev_addr.sgid_attr;
 	req.service_id = rdma_get_service_id(&id_priv->id, cma_dst_addr(id_priv));
 	req.timeout_ms = 1 << (CMA_CM_RESPONSE_TIMEOUT - 8);
 	req.max_cm_retries = CMA_MAX_CM_RETRIES;
@@ -3642,6 +3643,8 @@ static int cma_connect_ib(struct rdma_id_private *id_priv,
 	if (route->num_paths == 2)
 		req.alternate_path = &route->path_rec[1];
 
+	req.ppath_sgid_attr = id_priv->id.route.addr.dev_addr.sgid_attr;
+	/* Alternate path SGID attribute currently unsupported */
 	req.service_id = rdma_get_service_id(&id_priv->id, cma_dst_addr(id_priv));
 	req.qp_num = id_priv->qp_num;
 	req.qp_type = id_priv->id.qp_type;

include/rdma/ib_cm.h

@@ -246,6 +246,7 @@ struct ib_cm_sidr_rep_event_param {
 	u32			qkey;
 	u32			qpn;
 	void			*info;
+	const struct ib_gid_attr *sgid_attr;
 	u8			info_len;
 };
 
@@ -365,6 +366,7 @@ struct ib_cm_id *ib_cm_insert_listen(struct ib_device *device,
 struct ib_cm_req_param {
 	struct sa_path_rec	*primary_path;
 	struct sa_path_rec	*alternate_path;
+	const struct ib_gid_attr *ppath_sgid_attr;
 	__be64			service_id;
 	u32			qp_num;
 	enum ib_qp_type		qp_type;
@@ -566,6 +568,7 @@ int ib_send_cm_apr(struct ib_cm_id *cm_id,
 
 struct ib_cm_sidr_req_param {
 	struct sa_path_rec	*path;
+	const struct ib_gid_attr *sgid_attr;
 	__be64			service_id;
 	int			timeout_ms;
 	const void		*private_data;