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Commit 593e4d4a authored by Joachim Fenkes's avatar Joachim Fenkes Committed by Roland Dreier
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IB/ehca: Use default value for Local CA ACK Delay if FW returns 0 



Some firmware versions report a Local CA ACK Delay of 0.  In that
case, return a more sensible default value of 12 (-> 16 msec) instead.

Signed-off-by: default avatarJoachim Fenkes <fenkes@de.ibm.com>
Signed-off-by: default avatarRoland Dreier <rolandd@cisco.com>
parent 5b673b71

drivers/infiniband/hw/ehca/ehca_hca.c

+3 −1
Original line number Original line Diff line number Diff line
@@ -114,7 +114,9 @@ int ehca_query_device(struct ib_device *ibdev, struct ib_device_attr *props) 
	}

	}





	props->max_pkeys           = 16;

	props->max_pkeys           = 16;

	props->local_ca_ack_delay  = min_t(u8, rblock->local_ca_ack_delay, 255);

	/* Some FW versions say 0 here; insert sensible value in that case */

	props->local_ca_ack_delay  = rblock->local_ca_ack_delay ?

		min_t(u8, rblock->local_ca_ack_delay, 255) : 12;

	props->max_raw_ipv6_qp     = limit_uint(rblock->max_raw_ipv6_qp);

	props->max_raw_ipv6_qp     = limit_uint(rblock->max_raw_ipv6_qp);

	props->max_raw_ethy_qp     = limit_uint(rblock->max_raw_ethy_qp);

	props->max_raw_ethy_qp     = limit_uint(rblock->max_raw_ethy_qp);

	props->max_mcast_grp       = limit_uint(rblock->max_mcast_grp);

	props->max_mcast_grp       = limit_uint(rblock->max_mcast_grp);