diff options
| author | Michael S. Tsirkin <mst@mellanox.co.il> | 2006-10-09 18:06:32 +0200 |
|---|---|---|
| committer | Roland Dreier <rolandd@cisco.com> | 2006-10-10 12:50:38 -0700 |
| commit | 2cbe19d48af198f0070470a2d836828de24fe163 (patch) | |
| tree | 4e6c27a49dc2aa5a4cf3c026b8cdcbfe9b15be72 /drivers/infiniband | |
| parent | 73fbe8be73512b8a3ffa3d20c9d7f531af99679c (diff) | |
| download | op-kernel-dev-2cbe19d48af198f0070470a2d836828de24fe163.zip op-kernel-dev-2cbe19d48af198f0070470a2d836828de24fe163.tar.gz | |
IB/mthca: Fix off-by-one in mthca SRQ creation
All HCAs (not just mem-free) need a spare SRQ entry, so bump srq->max
by 1 in all cases.
Noted by Jack Morgenstein <jackm@mellanox.co.il>
Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/infiniband')
| -rw-r--r-- | drivers/infiniband/hw/mthca/mthca_srq.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/infiniband/hw/mthca/mthca_srq.c b/drivers/infiniband/hw/mthca/mthca_srq.c index 0f316c8..92a72f5 100644 --- a/drivers/infiniband/hw/mthca/mthca_srq.c +++ b/drivers/infiniband/hw/mthca/mthca_srq.c @@ -201,6 +201,8 @@ int mthca_alloc_srq(struct mthca_dev *dev, struct mthca_pd *pd, if (mthca_is_memfree(dev)) srq->max = roundup_pow_of_two(srq->max + 1); + else + srq->max = srq->max + 1; ds = max(64UL, roundup_pow_of_two(sizeof (struct mthca_next_seg) + @@ -277,7 +279,7 @@ int mthca_alloc_srq(struct mthca_dev *dev, struct mthca_pd *pd, srq->first_free = 0; srq->last_free = srq->max - 1; - attr->max_wr = (mthca_is_memfree(dev)) ? srq->max - 1 : srq->max; + attr->max_wr = srq->max - 1; attr->max_sge = srq->max_gs; return 0; @@ -413,7 +415,7 @@ int mthca_query_srq(struct ib_srq *ibsrq, struct ib_srq_attr *srq_attr) 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_wr = srq->max - 1; srq_attr->max_sge = srq->max_gs; out: |
