ath9k: add a patch to show excessive retry counts for single MPDUs

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@26711 3c298f89-4303-0410-b956-a3cf2f4a3e73

diff --git a/package/mac80211/patches/570-ath9k_debugfs_show_xretry.patch b/package/mac80211/patches/570-ath9k_debugfs_show_xretry.patch
new file mode 100644 (file)
index 0000000..858f279
--- /dev/null
+++ b/package/mac80211/patches/570-ath9k_debugfs_show_xretry.patch
@@ -0,0 +1,32 @@
+--- a/drivers/net/wireless/ath/ath9k/debug.c
++++ b/drivers/net/wireless/ath/ath9k/debug.c
+@@ -543,6 +543,7 @@ static ssize_t read_file_xmit(struct fil
+ 
+       PR("MPDUs Queued:    ", queued);
+       PR("MPDUs Completed: ", completed);
++      PR("MPDUs XRetried:  ", xretries);
+       PR("Aggregates:      ", a_aggr);
+       PR("AMPDUs Queued HW:", a_queued_hw);
+       PR("AMPDUs Queued SW:", a_queued_sw);
+@@ -798,7 +799,10 @@ void ath_debug_stat_tx(struct ath_softc 
+               else
+                       TX_STAT_INC(qnum, a_completed);
+       } else {
+-              TX_STAT_INC(qnum, completed);
++              if (bf_isxretried(bf))
++                      TX_STAT_INC(qnum, xretries);
++              else
++                      TX_STAT_INC(qnum, completed);
+       }
+ 
+       if (ts->ts_status & ATH9K_TXERR_FIFO)
+--- a/drivers/net/wireless/ath/ath9k/debug.h
++++ b/drivers/net/wireless/ath/ath9k/debug.h
+@@ -112,6 +112,7 @@ struct ath_tx_stats {
+       u32 tx_bytes_all;
+       u32 queued;
+       u32 completed;
++      u32 xretries;
+       u32 a_aggr;
+       u32 a_queued_hw;
+       u32 a_queued_sw;