diff options
| author |   Roland Dreier <rolandd@cisco.com> | 2006-02-03 14:53:28 -0800 |
|---|---|---|
| committer | Roland Dreier <rolandd@cisco.com> | 2006-03-20 10:08:12 -0800 |
| commit | 3fa1fa3e809dc009a080ca9f052cee2e17836c63 (patch) | |
| tree | 471bc486f70e8cd4d3950b0ff256f12db057b951 /drivers/infiniband/hw/mthca/mthca_qp.c | |
| parent | IB/mad: Simplify SMI by eliminating smi_check_local_dr_smp() (diff) | |
| download | linux-dev-3fa1fa3e809dc009a080ca9f052cee2e17836c63.tar.xz linux-dev-3fa1fa3e809dc009a080ca9f052cee2e17836c63.zip | |
IB/mthca: Generate SQ drained events when requested
Add low-level driver support to ib_mthca so that consumers can request
a "send queue drained" event be generated when a transiton to the SQD
state completes.
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/infiniband/hw/mthca/mthca_qp.c')
| -rw-r--r-- | drivers/infiniband/hw/mthca/mthca_qp.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/mthca/mthca_qp.c b/drivers/infiniband/hw/mthca/mthca_qp.c index bdba39a8d9f9..97f5303d2c02 100644 --- a/drivers/infiniband/hw/mthca/mthca_qp.c +++ b/drivers/infiniband/hw/mthca/mthca_qp.c @@ -415,6 +415,12 @@ static const struct { }, [IB_QPS_SQD] = { .trans = MTHCA_TRANS_RTS2SQD, + .opt_param = { + [UD] = IB_QP_EN_SQD_ASYNC_NOTIFY, + [UC] = IB_QP_EN_SQD_ASYNC_NOTIFY, + [RC] = IB_QP_EN_SQD_ASYNC_NOTIFY, + [MLX] = IB_QP_EN_SQD_ASYNC_NOTIFY + } }, }, [IB_QPS_SQD] = { @@ -577,6 +583,7 @@ int mthca_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, int attr_mask) struct mthca_qp_param *qp_param; struct mthca_qp_context *qp_context; u32 req_param, opt_param; + u32 sqd_event = 0; u8 status; int err; @@ -841,8 +848,13 @@ int mthca_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, int attr_mask) qp_context->srqn = cpu_to_be32(1 << 24 | to_msrq(ibqp->srq)->srqn); + if (cur_state == IB_QPS_RTS && new_state == IB_QPS_SQD && + attr_mask & IB_QP_EN_SQD_ASYNC_NOTIFY && + attr->en_sqd_async_notify) + sqd_event = 1 << 31; + err = mthca_MODIFY_QP(dev, state_table[cur_state][new_state].trans, - qp->qpn, 0, mailbox, 0, &status); + qp->qpn, 0, mailbox, sqd_event, &status); if (status) { mthca_warn(dev, "modify QP %d returned status %02x.\n", state_table[cur_state][new_state].trans, status); |