Commit d7012467 authored by Eli Cohen's avatar Eli Cohen Committed by Doug Ledford

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: default avatarEli Cohen <eli@mellanox.com>
Signed-off-by: default avatarLeon Romanovsky <leon@kernel.org>
Reviewed-by: default avatarSteve Wise <swise@opengridcomputing.com>
Signed-off-by: default avatarDoug Ledford <dledford@redhat.com>
parent 495fbae6
...@@ -661,6 +661,9 @@ int ib_query_port(struct ib_device *device, ...@@ -661,6 +661,9 @@ int ib_query_port(struct ib_device *device,
if (err || port_attr->subnet_prefix) if (err || port_attr->subnet_prefix)
return err; 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); err = ib_query_gid(device, port_num, 0, &gid, NULL);
if (err) if (err)
return err; return err;
......
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