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authorJavier Cardona <javier@cozybit.com>2011-09-06 13:05:21 -0700
committerJohn W. Linville <linville@tuxdriver.com>2011-09-14 13:56:17 -0400
commitcfee66b0f9891fc2b79a238e737308a2732365d2 (patch)
tree61eaebffc363a5eb28cf0712a74a8628704f1254 /net/mac80211/rx.c
parent2157fdd6ae3f760a95c5c50072a1b4ac656eb9f5 (diff)
mac80211: Stop forwarding mesh traffic when tx queues are full
Tx flow control for non-mesh modes of operation only needs to act on the net device queues: when the hardware queues are full we stop accepting traffic from the net device. In mesh, however, we also need to stop forwarding traffic. This patch checks the hardware queues before attempting to forward a mesh frame. Signed-off-by: Javier Cardona <javier@cozybit.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/rx.c')
-rw-r--r--net/mac80211/rx.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index d479d48e8d18..811e3ade8c74 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -1844,6 +1844,12 @@ ieee80211_rx_h_mesh_fwding(struct ieee80211_rx_data *rx)
/* illegal frame */
return RX_DROP_MONITOR;
+ if (ieee80211_queue_stopped(&local->hw, skb_get_queue_mapping(skb))) {
+ IEEE80211_IFSTA_MESH_CTR_INC(&sdata->u.mesh,
+ dropped_frames_congestion);
+ return RX_DROP_MONITOR;
+ }
+
if (mesh_hdr->flags & MESH_FLAGS_AE) {
struct mesh_path *mppath;
char *proxied_addr;