diff options
| author | Dotan Barak <dotanb@mellanox.co.il> | 2006-07-13 12:05:49 +0400 |
|---|---|---|
| committer | Roland Dreier <rolandd@cisco.com> | 2006-07-24 18:20:32 +0400 |
| commit | 1252c517cf3df240ae51946a096035765dfd2e6d (patch) | |
| tree | 87b37913a8bfebdfef3c2ff15d625e1d863bd5b6 /drivers | |
| parent | 43db2bc04409b1e1b74f9768e3284cec18a87d0b (diff) | |
| download | linux-1252c517cf3df240ae51946a096035765dfd2e6d.tar.xz | |
IB/mthca: Fix SRQ limit event range check
Mem-free HCAs always keep one spare SRQ WQE, so the SRQ limit cannot
be set beyond srq->max - 1.
Signed-off-by: Dotan Barak <dotanb@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')
| -rw-r--r-- | drivers/infiniband/hw/mthca/mthca_srq.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/mthca/mthca_srq.c b/drivers/infiniband/hw/mthca/mthca_srq.c index fab417c5cf43..b60a9d79ae54 100644 --- a/drivers/infiniband/hw/mthca/mthca_srq.c +++ b/drivers/infiniband/hw/mthca/mthca_srq.c @@ -370,7 +370,8 @@ int mthca_modify_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr, return -EINVAL; if (attr_mask & IB_SRQ_LIMIT) { - if (attr->srq_limit > srq->max) + u32 max_wr = mthca_is_memfree(dev) ? srq->max - 1 : srq->max; + if (attr->srq_limit > max_wr) return -EINVAL; mutex_lock(&srq->mutex); |