Commit bb4a7f0d authored Sep 12, 2005 by Roland Dreier

[PATCH] IB/mthca: assign ACK timeout field correctly

The hardware reads the ACK timeout field from the most significant 5
bits of struct mthca_qp_path's ackto field, not the least significant
bits. This fix has the driver put the timeout in the right place.
Without this, we get a timeout that is 2^8 times too small.

Signed-off-by: Roland Dreier <rolandd@cisco.com>

parent 51574e03

drivers/infiniband/hw/mthca/mthca_qp.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -687,7 +687,7 @@ int mthca_modify_qp(struct ib_qp ibqp, struct ib_qp_attr attr, int attr_mask)
		}

		if (attr_mask & IB_QP_TIMEOUT) {
		qp_context->pri_path.ackto = attr->timeout;
		qp_context->pri_path.ackto = attr->timeout << 3;
		qp_param->opt_param_mask \|= cpu_to_be32(MTHCA_QP_OPTPAR_ACK_TIMEOUT);
		}

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