diff options
| author | Eli Cohen <eli@mellanox.co.il> | 2006-03-13 15:33:01 +0300 |
|---|---|---|
| committer | Roland Dreier <rolandd@cisco.com> | 2006-03-20 21:08:26 +0300 |
| commit | fd02e8038eb943755e8727a0ea193c037a51714f (patch) | |
| tree | 597dc0e67899c445ac85fc5b7ae8a151ca4491ee /drivers/infiniband/hw/mthca/mthca_srq.c | |
| parent | bfef73fa78ca1e56175dcbd33aa11de4764f85a5 (diff) | |
| download | linux-fd02e8038eb943755e8727a0ea193c037a51714f.tar.xz | |
IB/mthca: Query SRQ srq_limit fixes
Fix endianness handling of srq_limit: it is big-endian in the context
structure, so we need to swab it before returning it.
Also add support for srq_limit query for Tavor (non-MemFree) HCAs.
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 | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/drivers/infiniband/hw/mthca/mthca_srq.c b/drivers/infiniband/hw/mthca/mthca_srq.c index 96fcc64c61cd..47a6a754a591 100644 --- a/drivers/infiniband/hw/mthca/mthca_srq.c +++ b/drivers/infiniband/hw/mthca/mthca_srq.c @@ -49,7 +49,8 @@ struct mthca_tavor_srq_context { __be32 state_pd; __be32 lkey; __be32 uar; - __be32 wqe_cnt; + __be16 limit_watermark; + __be16 wqe_cnt; u32 reserved[2]; }; @@ -369,6 +370,7 @@ int mthca_query_srq(struct ib_srq *ibsrq, struct ib_srq_attr *srq_attr) struct mthca_srq *srq = to_msrq(ibsrq); struct mthca_mailbox *mailbox; struct mthca_arbel_srq_context *arbel_ctx; + struct mthca_tavor_srq_context *tavor_ctx; u8 status; int err; @@ -382,9 +384,11 @@ int mthca_query_srq(struct ib_srq *ibsrq, struct ib_srq_attr *srq_attr) 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->srq_limit = be16_to_cpu(arbel_ctx->limit_watermark); + } else { + tavor_ctx = mailbox->buf; + srq_attr->srq_limit = be16_to_cpu(tavor_ctx->limit_watermark); + } srq_attr->max_wr = (mthca_is_memfree(dev)) ? srq->max - 1 : srq->max; srq_attr->max_sge = srq->max_gs; |