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IB/cma: Fix RDMA port validation for iWarp

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commit 649367735ee5dedb128d9fac0b86ba7e0fe7ae3b upstream.

cma_validate_port wrongly assumed that Ethernet devices are RoCE
devices and thus their ndev should be matched in the GID table.
This broke the iWarp support. Fixing that matching the ndev only if
we work on a RoCE port.

Cc: <stable@vger.kernel.org> # 4.4.x-
Fixes: abae1b71dd37 ('IB/cma: cma_validate_port should verify the port
		     and netdevice')
Reported-by: Hariprasad Shenai <hariprasad@chelsio.com>
Tested-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: Matan Barak <matanb@mellanox.com>
Reviewed-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Matan Barak 2016-01-07 11:19:29 +02:00 committed by Greg Kroah-Hartman
parent 996c591227
commit 9315bf18be
1 changed files with 1 additions and 1 deletions
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2
drivers/infiniband/core/cma.c
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@ -453,7 +453,7 @@ static inline int cma_validate_port(struct ib_device *device, u8 port,
if ((dev_type != ARPHRD_INFINIBAND) && rdma_protocol_ib(device, port))
return ret;
if (dev_type == ARPHRD_ETHER)
if (dev_type == ARPHRD_ETHER && rdma_protocol_roce(device, port))
ndev = dev_get_by_index(&init_net, bound_if_index);
ret = ib_find_cached_gid_by_port(device, gid, port, ndev, NULL);