From 8ebe5077e37a0cb0da527e397460188e6bfdd3ee Mon Sep 17 00:00:00 2001 From: Eli Cohen Date: Mon, 13 Feb 2006 16:40:21 -0800 Subject: IB/mthca: Support for query QP and SRQ Implement the query_qp and query_srq methods in mthca. Signed-off-by: Eli Cohen Signed-off-by: Roland Dreier --- drivers/infiniband/hw/mthca/mthca_srq.c | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) (limited to 'drivers/infiniband/hw/mthca/mthca_srq.c') diff --git a/drivers/infiniband/hw/mthca/mthca_srq.c b/drivers/infiniband/hw/mthca/mthca_srq.c index f1a1da147d0..deb526ce013 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) { -- cgit v1.2.3