diff options
| author |   Eli Cohen <eli@mellanox.co.il> | 2006-02-13 16:40:21 -0800 |
|---|---|---|
| committer |   Roland Dreier <rolandd@cisco.com> | 2006-03-20 10:08:15 -0800 |
| commit | 8ebe5077e37a0cb0da527e397460188e6bfdd3ee (patch) | |
| tree | 401491fb7a94516dfbeeee027d8eeb294117cb5b /drivers/infiniband/hw/mthca/mthca_srq.c | |
| parent | IB/uverbs: Support for query SRQ from userspace (diff) | |
| download | linux-dev-8ebe5077e37a0cb0da527e397460188e6bfdd3ee.tar.xz linux-dev-8ebe5077e37a0cb0da527e397460188e6bfdd3ee.zip | |
IB/mthca: Support for query QP and SRQ
Implement the query_qp and query_srq methods in mthca.
Signed-off-by: Eli Cohen <eli@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/infiniband/hw/mthca/mthca_srq.c')
| -rw-r--r-- | drivers/infiniband/hw/mthca/mthca_srq.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/mthca/mthca_srq.c b/drivers/infiniband/hw/mthca/mthca_srq.c index f1a1da147d0b..deb526ce013d 100644 --- a/drivers/infiniband/hw/mthca/mthca_srq.c +++ b/drivers/infiniband/hw/mthca/mthca_srq.c @@ -360,6 +360,38 @@ int mthca_modify_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr, return 0; } +int mthca_query_srq(struct ib_srq *ibsrq, struct ib_srq_attr *srq_attr) +{ + struct mthca_dev *dev = to_mdev(ibsrq->device); + struct mthca_srq *srq = to_msrq(ibsrq); + struct mthca_mailbox *mailbox; + struct mthca_arbel_srq_context *arbel_ctx; + u8 status; + int err; + + mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL); + if (IS_ERR(mailbox)) + return PTR_ERR(mailbox); + + err = mthca_QUERY_SRQ(dev, srq->srqn, mailbox, &status); + if (err) + goto out; + + if (mthca_is_memfree(dev)) { + arbel_ctx = mailbox->buf; + srq_attr->srq_limit = arbel_ctx->limit_watermark; + } else + srq_attr->srq_limit = 0; + + srq_attr->max_wr = srq->max; + srq_attr->max_sge = srq->max_gs; + +out: + mthca_free_mailbox(dev, mailbox); + + return err; +} + void mthca_srq_event(struct mthca_dev *dev, u32 srqn, enum ib_event_type event_type) { |