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[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>
This commit is contained in:
Roland Dreier 2005-09-12 14:08:51 -07:00
parent 51574e0398
commit bb4a7f0da7
1 changed files with 1 additions and 1 deletions
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2
drivers/infiniband/hw/mthca/mthca_qp.c
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@ -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) { 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); qp_param->opt_param_mask |= cpu_to_be32(MTHCA_QP_OPTPAR_ACK_TIMEOUT);
} }