ath9k: do a chip reset if noise floor calibration fails, should improve stability

[openwrt/svn-archive/archive.git] / package / kernel / mac80211 / patches / 564-ath9k_cleanup_reset_debug.patch

diff --git a/package/kernel/mac80211/patches/564-ath9k_cleanup_reset_debug.patch b/package/kernel/mac80211/patches/564-ath9k_cleanup_reset_debug.patch
new file mode 100644 (file)
index 0000000..c636c5a
--- /dev/null
+++ b/package/kernel/mac80211/patches/564-ath9k_cleanup_reset_debug.patch
@@ -0,0 +1,60 @@
+--- a/drivers/net/wireless/ath/ath9k/debug.c
++++ b/drivers/net/wireless/ath/ath9k/debug.c
+@@ -846,36 +846,30 @@ static ssize_t read_file_reset(struct fi
+                              size_t count, loff_t *ppos)
+ {
+       struct ath_softc *sc = file->private_data;
++      static const char * const reset_cause[__RESET_TYPE_MAX] = {
++              [RESET_TYPE_BB_HANG] = "Baseband Hang",
++              [RESET_TYPE_BB_WATCHDOG] = "Baseband Watchdog",
++              [RESET_TYPE_FATAL_INT] = "Fatal HW Error",
++              [RESET_TYPE_TX_ERROR] = "TX HW error",
++              [RESET_TYPE_TX_GTT] = "Transmit timeout",
++              [RESET_TYPE_TX_HANG] = "TX Path Hang",
++              [RESET_TYPE_PLL_HANG] = "PLL RX Hang",
++              [RESET_TYPE_MAC_HANG] = "MAC Hang",
++              [RESET_TYPE_BEACON_STUCK] = "Stuck Beacon",
++              [RESET_TYPE_MCI] = "MCI Reset",
++      };
+       char buf[512];
+       unsigned int len = 0;
++      int i;
+ 
+-      len += scnprintf(buf + len, sizeof(buf) - len,
+-                       "%17s: %2d\n", "Baseband Hang",
+-                       sc->debug.stats.reset[RESET_TYPE_BB_HANG]);
+-      len += scnprintf(buf + len, sizeof(buf) - len,
+-                       "%17s: %2d\n", "Baseband Watchdog",
+-                       sc->debug.stats.reset[RESET_TYPE_BB_WATCHDOG]);
+-      len += scnprintf(buf + len, sizeof(buf) - len,
+-                       "%17s: %2d\n", "Fatal HW Error",
+-                       sc->debug.stats.reset[RESET_TYPE_FATAL_INT]);
+-      len += scnprintf(buf + len, sizeof(buf) - len,
+-                       "%17s: %2d\n", "TX HW error",
+-                       sc->debug.stats.reset[RESET_TYPE_TX_ERROR]);
+-      len += scnprintf(buf + len, sizeof(buf) - len,
+-                       "%17s: %2d\n", "TX Path Hang",
+-                       sc->debug.stats.reset[RESET_TYPE_TX_HANG]);
+-      len += scnprintf(buf + len, sizeof(buf) - len,
+-                       "%17s: %2d\n", "PLL RX Hang",
+-                       sc->debug.stats.reset[RESET_TYPE_PLL_HANG]);
+-      len += scnprintf(buf + len, sizeof(buf) - len,
+-                       "%17s: %2d\n", "MAC Hang",
+-                       sc->debug.stats.reset[RESET_TYPE_MAC_HANG]);
+-      len += scnprintf(buf + len, sizeof(buf) - len,
+-                       "%17s: %2d\n", "Stuck Beacon",
+-                       sc->debug.stats.reset[RESET_TYPE_BEACON_STUCK]);
+-      len += scnprintf(buf + len, sizeof(buf) - len,
+-                       "%17s: %2d\n", "MCI Reset",
+-                       sc->debug.stats.reset[RESET_TYPE_MCI]);
++      for (i = 0; i < ARRAY_SIZE(reset_cause); i++) {
++              if (!reset_cause[i])
++                  continue;
++
++              len += scnprintf(buf + len, sizeof(buf) - len,
++                               "%17s: %2d\n", reset_cause[i],
++                               sc->debug.stats.reset[i]);
++      }
+ 
+       if (len > sizeof(buf))
+               len = sizeof(buf);