diff options
Diffstat (limited to 'drivers/infiniband/hw/mthca/mthca_qp.c')
| -rw-r--r-- | drivers/infiniband/hw/mthca/mthca_qp.c | 37 |
1 files changed, 18 insertions, 19 deletions
diff --git a/drivers/infiniband/hw/mthca/mthca_qp.c b/drivers/infiniband/hw/mthca/mthca_qp.c index 760c418d5bc..dd4e13303e9 100644 --- a/drivers/infiniband/hw/mthca/mthca_qp.c +++ b/drivers/infiniband/hw/mthca/mthca_qp.c @@ -730,15 +730,16 @@ int mthca_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, int attr_mask) } if (attr_mask & IB_QP_ACCESS_FLAGS) { + qp_context->params2 |= + cpu_to_be32(attr->qp_access_flags & IB_ACCESS_REMOTE_WRITE ? + MTHCA_QP_BIT_RWE : 0); + /* - * Only enable RDMA/atomics if we have responder - * resources set to a non-zero value. + * Only enable RDMA reads and atomics if we have + * responder resources set to a non-zero value. */ if (qp->resp_depth) { qp_context->params2 |= - cpu_to_be32(attr->qp_access_flags & IB_ACCESS_REMOTE_WRITE ? - MTHCA_QP_BIT_RWE : 0); - qp_context->params2 |= cpu_to_be32(attr->qp_access_flags & IB_ACCESS_REMOTE_READ ? MTHCA_QP_BIT_RRE : 0); qp_context->params2 |= @@ -759,31 +760,27 @@ int mthca_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, int attr_mask) if (qp->resp_depth && !attr->max_dest_rd_atomic) { /* * Lowering our responder resources to zero. - * Turn off RDMA/atomics as responder. - * (RWE/RRE/RAE in params2 already zero) + * Turn off reads RDMA and atomics as responder. + * (RRE/RAE in params2 already zero) */ - qp_param->opt_param_mask |= cpu_to_be32(MTHCA_QP_OPTPAR_RWE | - MTHCA_QP_OPTPAR_RRE | + qp_param->opt_param_mask |= cpu_to_be32(MTHCA_QP_OPTPAR_RRE | MTHCA_QP_OPTPAR_RAE); } if (!qp->resp_depth && attr->max_dest_rd_atomic) { /* * Increasing our responder resources from - * zero. Turn on RDMA/atomics as appropriate. + * zero. Turn on RDMA reads and atomics as + * appropriate. */ qp_context->params2 |= - cpu_to_be32(qp->atomic_rd_en & IB_ACCESS_REMOTE_WRITE ? - MTHCA_QP_BIT_RWE : 0); - qp_context->params2 |= cpu_to_be32(qp->atomic_rd_en & IB_ACCESS_REMOTE_READ ? MTHCA_QP_BIT_RRE : 0); qp_context->params2 |= cpu_to_be32(qp->atomic_rd_en & IB_ACCESS_REMOTE_ATOMIC ? MTHCA_QP_BIT_RAE : 0); - qp_param->opt_param_mask |= cpu_to_be32(MTHCA_QP_OPTPAR_RWE | - MTHCA_QP_OPTPAR_RRE | + qp_param->opt_param_mask |= cpu_to_be32(MTHCA_QP_OPTPAR_RRE | MTHCA_QP_OPTPAR_RAE); } @@ -921,10 +918,12 @@ static void mthca_adjust_qp_caps(struct mthca_dev *dev, else qp->max_inline_data = max_data_size - MTHCA_INLINE_HEADER_SIZE; - qp->sq.max_gs = max_data_size / sizeof (struct mthca_data_seg); - qp->rq.max_gs = (min(dev->limits.max_desc_sz, 1 << qp->rq.wqe_shift) - - sizeof (struct mthca_next_seg)) / - sizeof (struct mthca_data_seg); + qp->sq.max_gs = min_t(int, dev->limits.max_sg, + max_data_size / sizeof (struct mthca_data_seg)); + qp->rq.max_gs = min_t(int, dev->limits.max_sg, + (min(dev->limits.max_desc_sz, 1 << qp->rq.wqe_shift) - + sizeof (struct mthca_next_seg)) / + sizeof (struct mthca_data_seg)); } /* |