Messages in this thread Patch in this message | | | Subject | [PATCH 02/10] IB/mthca: assign ACK timeout field correctly | Date | Tue, 20 Sep 2005 15:08:10 -0700 | From | Roland Dreier <> |
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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>
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drivers/infiniband/hw/mthca/mthca_qp.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-)
6fd9dccd77024ea85b65aa3e8f1cce22caa0d578 diff --git a/drivers/infiniband/hw/mthca/mthca_qp.c b/drivers/infiniband/hw/mthca/mthca_qp.c --- a/drivers/infiniband/hw/mthca/mthca_qp.c +++ b/drivers/infiniband/hw/mthca/mthca_qp.c @@ -687,7 +687,7 @@ int mthca_modify_qp(struct ib_qp *ibqp, } 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); } - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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