summaryrefslogtreecommitdiffstats
path: root/drivers/net/cxgb3/cxgb3_offload.c
diff options
context:
space:
mode:
authorDivy Le Ray <divy@chelsio.com>2007-03-31 00:23:13 -0700
committerJeff Garzik <jeff@garzik.org>2007-04-03 22:31:09 -0400
commit9f238486f5438b2e44f760b11fa3a08714c1ddb6 (patch)
tree4db457aaedba5c4af8f6b397ef34dcc46462bf7b /drivers/net/cxgb3/cxgb3_offload.c
parent59117d3f4e3f5a7980353d2f476e516c758ce921 (diff)
cxgb3 - Safeguard TCAM size usage
Ensure that the TCAM active region size is at least 16. Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/net/cxgb3/cxgb3_offload.c')
-rw-r--r--drivers/net/cxgb3/cxgb3_offload.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/net/cxgb3/cxgb3_offload.c b/drivers/net/cxgb3/cxgb3_offload.c
index f6ed033efb5..eed7a48e311 100644
--- a/drivers/net/cxgb3/cxgb3_offload.c
+++ b/drivers/net/cxgb3/cxgb3_offload.c
@@ -553,7 +553,9 @@ int cxgb3_alloc_atid(struct t3cdev *tdev, struct cxgb3_client *client,
struct tid_info *t = &(T3C_DATA(tdev))->tid_maps;
spin_lock_bh(&t->atid_lock);
- if (t->afree) {
+ if (t->afree &&
+ t->atids_in_use + atomic_read(&t->tids_in_use) + MC5_MIN_TIDS <=
+ t->ntids) {
union active_open_entry *p = t->afree;
atid = (p - t->atid_tab) + t->atid_base;