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Re: bug: iwlwifi, aggregation, and mac80211's reorder buffer

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At the receiver (AP in this case) side, hacked from mac80211. The
following diff includes one more mac80211 fix I haven't yet sent to
the list.

Dan

diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index a6701ed..0467ec8 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -605,13 +605,14 @@ static void ieee80211_sta_reorder_release(struct
ieee80211                                continue;
                        }
                        if (!time_after(jiffies, tid_agg_rx->reorder_time[j] +
-                                       HT_RX_REORDER_BUF_TIMEOUT))
+                                       HT_RX_REORDER_BUF_TIMEOUT) && skipped)
                                goto set_release_timer;

-#ifdef CONFIG_MAC80211_HT_DEBUG
-                       if (net_ratelimit())
+#if 1
+//#ifdef CONFIG_MAC80211_HT_DEBUG
+//                     if (net_ratelimit())
                                wiphy_debug(hw->wiphy,
-                                           "release an RX reorder
frame due to +                                           "release an
RX reorder frame due to  #endif
                        ieee80211_release_reorder_frame(hw, tid_agg_rx, j);

@@ -680,6 +681,7 @@ static bool
ieee80211_sta_manage_reorder_buf(struct ieee8021         * size
release some previous frames to make room for this one.
         */
        if (!seq_less(mpdu_seq_num, head_seq_num + buf_size)) {
+               printk("New seq exceeds buffering window: %d, %d\n",
mpdu_seq_nu                head_seq_num =
seq_inc(seq_sub(mpdu_seq_num, buf_size));
                /* release stored frames up to new head to stack */
                ieee80211_release_reorder_frames(hw, tid_agg_rx, head_seq_num);


On Tue, Mar 15, 2011 at 11:29 AM, Johannes Berg
<johannes@xxxxxxxxxxxxxxxx> wrote:
> On Tue, 2011-03-15 at 11:16 -0700, Daniel Halperin wrote:
>
>> [341349.271337] New seq exceeds buffering window: 2797, 2766
>
> quick q (on the phone right now) - where's that message from?
>
> johannes
>
>
>
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