diff options
| author | Jack Morgenstein <jackm@mellanox.co.il> | 2005-12-15 19:59:01 -0800 |
|---|---|---|
| committer | Roland Dreier <rolandd@cisco.com> | 2005-12-15 19:59:01 -0800 |
| commit | c4342d8a4d95e18b957b898dbf5bfce28fca2780 (patch) | |
| tree | fbaaaa50351a71f03b013b86ba32ef01bea19472 /drivers/infiniband | |
| parent | d1646f86a2a05a956adbb163c81a81bd621f055e (diff) | |
| download | blackbird-op-linux-c4342d8a4d95e18b957b898dbf5bfce28fca2780.tar.gz blackbird-op-linux-c4342d8a4d95e18b957b898dbf5bfce28fca2780.zip | |
IB/mthca: Fix corner cases in max_rd_atomic value handling in modify QP
sae and sre bits should only be set when setting sra_max. Further, in
the old code, if the caller specifies max_rd_atomic = 0, the sre and
sae bits are still set, with the result that the QP ends up with
max_rd_atomic = 1 in effect.
Signed-off-by: Jack Morgenstein <jackm@mellanox.co.il>
Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/infiniband')
| -rw-r--r-- | drivers/infiniband/hw/mthca/mthca_qp.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/infiniband/hw/mthca/mthca_qp.c b/drivers/infiniband/hw/mthca/mthca_qp.c index e826c9ff5d70..d786ef443614 100644 --- a/drivers/infiniband/hw/mthca/mthca_qp.c +++ b/drivers/infiniband/hw/mthca/mthca_qp.c @@ -747,9 +747,7 @@ int mthca_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, int attr_mask) qp_context->wqe_lkey = cpu_to_be32(qp->mr.ibmr.lkey); qp_context->params1 = cpu_to_be32((MTHCA_ACK_REQ_FREQ << 28) | (MTHCA_FLIGHT_LIMIT << 24) | - MTHCA_QP_BIT_SRE | - MTHCA_QP_BIT_SWE | - MTHCA_QP_BIT_SAE); + MTHCA_QP_BIT_SWE); if (qp->sq_policy == IB_SIGNAL_ALL_WR) qp_context->params1 |= cpu_to_be32(MTHCA_QP_BIT_SSC); if (attr_mask & IB_QP_RETRY_CNT) { @@ -758,9 +756,13 @@ int mthca_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, int attr_mask) } if (attr_mask & IB_QP_MAX_QP_RD_ATOMIC) { - if (attr->max_rd_atomic) + if (attr->max_rd_atomic) { + qp_context->params1 |= + cpu_to_be32(MTHCA_QP_BIT_SRE | + MTHCA_QP_BIT_SAE); qp_context->params1 |= cpu_to_be32(fls(attr->max_rd_atomic - 1) << 21); + } qp_param->opt_param_mask |= cpu_to_be32(MTHCA_QP_OPTPAR_SRA_MAX); } |
