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Commit 47645d8d authored by Sean Hefty's avatar Sean Hefty Committed by Roland Dreier
Browse files

IB/core: Set hop limit in ib_init_ah_from_wc correctly 



The hop_limit value in the ah_attr should be 0xFF, not the value read
from the received GRH (which should be 0).  See 13.5.4.4 in the 1.2 IB
spec.

Signed-off-by: default avatarSean Hefty <sean.hefty@intel.com>
Signed-off-by: default avatarRoland Dreier <rolandd@cisco.com>
parent aaf1aef5

drivers/infiniband/core/verbs.c

+1 −1
Original line number Diff line number Diff line
@@ -167,7 +167,7 @@ int ib_init_ah_from_wc(struct ib_device *device, u8 port_num, struct ib_wc *wc, 
		ah_attr->grh.sgid_index = (u8) gid_index;

		flow_class = be32_to_cpu(grh->version_tclass_flow);

		ah_attr->grh.flow_label = flow_class & 0xFFFFF;

		ah_attr->grh.hop_limit = grh->hop_limit;

		ah_attr->grh.hop_limit = 0xFF;

		ah_attr->grh.traffic_class = (flow_class >> 20) & 0xFF;

	}

	return 0;