[PATCH] IB/ipath: enforce device resource limits

These limits are somewhat artificial in that we don't actually have any
device limits.  However, the verbs layer expects that such limits exist
and are enforced, so we make up arbitrary (but sensible) limits.

Signed-off-by: Robert Walsh <robert.walsh@qlogic.com>
Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com>
Cc: "Michael S. Tsirkin" <mst@mellanox.co.il>
Cc: Roland Dreier <rolandd@cisco.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 4 insertions, 2 deletions

diff --git a/drivers/infiniband/hw/ipath/ipath_qp.c b/drivers/infiniband/hw/ipath/ipath_qp.c
index fd4d55bdee78..83b9a6a5e2c6 100644
--- a/drivers/infiniband/hw/ipath/ipath_qp.c
+++ b/drivers/infiniband/hw/ipath/ipath_qp.c
@@ -661,8 +661,10 @@ struct ib_qp *ipath_create_qp(struct ib_pd *ibpd,
         size_t sz;
         struct ib_qp *ret;
 
-        if (init_attr->cap.max_send_sge > 255 ||
-            init_attr->cap.max_recv_sge > 255) {
+        if (init_attr->cap.max_send_sge > ib_ipath_max_sges ||
+            init_attr->cap.max_recv_sge > ib_ipath_max_sges ||
+            init_attr->cap.max_send_wr > ib_ipath_max_qp_wrs ||
+            init_attr->cap.max_recv_wr > ib_ipath_max_qp_wrs) {
                 ret = ERR_PTR(-ENOMEM);
                 goto bail;
         }