Commit d7012467 authored Jun 04, 2016 by Eli Cohen Committed by Doug Ledford Jun 07, 2016

IB/core: Fix query port failure in RoCE



Currently ib_query_port always attempts to to read the subnet prefix by
calling ib_query_gid(). For RoCE/iWARP there is no subnet manager and no
subnet prefix. Fix this by querying GID[0] only for IB networks.

Fixes: fad61ad4 ('IB/core: Add subnet prefix to port info')
Signed-off-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Reviewed-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>

parent 495fbae6

drivers/infiniband/core/device.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -661,6 +661,9 @@ int ib_query_port(struct ib_device *device,
		if (err \|\| port_attr->subnet_prefix)
		return err;

		if (rdma_port_get_link_layer(device, port_num) != IB_LINK_LAYER_INFINIBAND)
		return 0;

		err = ib_query_gid(device, port_num, 0, &gid, NULL);
		if (err)
		return err;