124 lines
3.9 KiB
Diff
124 lines
3.9 KiB
Diff
--- a/drivers/net/wireless/ath/ath9k/debug.h
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+++ b/drivers/net/wireless/ath/ath9k/debug.h
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@@ -25,8 +25,10 @@ struct ath_buf;
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#ifdef CONFIG_ATH9K_DEBUGFS
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#define TX_STAT_INC(q, c) sc->debug.stats.txstats[q].c++
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+#define RESET_STAT_INC(sc, type) sc->debug.stats.reset[type]++
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#else
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#define TX_STAT_INC(q, c) do { } while (0)
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+#define RESET_STAT_INC(sc, type) do { } while (0)
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#endif
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#ifdef CONFIG_ATH9K_DEBUGFS
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@@ -171,10 +173,21 @@ struct ath_rx_stats {
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u8 rs_antenna;
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};
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+enum ath_reset_type {
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+ RESET_TYPE_BB_HANG,
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+ RESET_TYPE_BB_WATCHDOG,
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+ RESET_TYPE_FATAL_INT,
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+ RESET_TYPE_TX_ERROR,
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+ RESET_TYPE_TX_HANG,
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+ RESET_TYPE_PLL_HANG,
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+ __RESET_TYPE_MAX
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+};
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+
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struct ath_stats {
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struct ath_interrupt_stats istats;
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struct ath_tx_stats txstats[ATH9K_NUM_TX_QUEUES];
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struct ath_rx_stats rxstats;
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+ u32 reset[__RESET_TYPE_MAX];
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};
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#define ATH_DBG_MAX_SAMPLES 10
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--- a/drivers/net/wireless/ath/ath9k/main.c
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+++ b/drivers/net/wireless/ath/ath9k/main.c
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@@ -679,6 +679,16 @@ void ath9k_tasklet(unsigned long data)
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if ((status & ATH9K_INT_FATAL) ||
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(status & ATH9K_INT_BB_WATCHDOG)) {
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+#ifdef CONFIG_ATH9K_DEBUGFS
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+ enum ath_reset_type type;
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+
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+ if (status & ATH9K_INT_FATAL)
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+ type = RESET_TYPE_FATAL_INT;
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+ else
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+ type = RESET_TYPE_BB_WATCHDOG;
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+
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+ RESET_STAT_INC(sc, type);
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+#endif
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ieee80211_queue_work(sc->hw, &sc->hw_reset_work);
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goto out;
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}
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@@ -995,8 +1005,10 @@ void ath_hw_check(struct work_struct *wo
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ath_dbg(common, ATH_DBG_RESET, "Possible baseband hang, "
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"busy=%d (try %d)\n", busy, sc->hw_busy_count + 1);
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if (busy >= 99) {
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- if (++sc->hw_busy_count >= 3)
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+ if (++sc->hw_busy_count >= 3) {
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+ RESET_STAT_INC(sc, RESET_TYPE_BB_HANG);
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ieee80211_queue_work(sc->hw, &sc->hw_reset_work);
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+ }
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} else if (busy >= 0)
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sc->hw_busy_count = 0;
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@@ -1016,6 +1028,7 @@ static void ath_hw_pll_rx_hang_check(str
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/* Rx is hung for more than 500ms. Reset it */
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ath_dbg(common, ATH_DBG_RESET,
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"Possible RX hang, resetting");
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+ RESET_STAT_INC(sc, RESET_TYPE_PLL_HANG);
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ieee80211_queue_work(sc->hw, &sc->hw_reset_work);
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count = 0;
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}
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--- a/drivers/net/wireless/ath/ath9k/xmit.c
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+++ b/drivers/net/wireless/ath/ath9k/xmit.c
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@@ -587,8 +587,10 @@ static void ath_tx_complete_aggr(struct
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rcu_read_unlock();
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- if (needreset)
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+ if (needreset) {
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+ RESET_STAT_INC(sc, RESET_TYPE_TX_ERROR);
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ieee80211_queue_work(sc->hw, &sc->hw_reset_work);
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+ }
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}
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static bool ath_lookup_legacy(struct ath_buf *bf)
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@@ -2270,6 +2272,7 @@ static void ath_tx_complete_poll_work(st
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if (needreset) {
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ath_dbg(ath9k_hw_common(sc->sc_ah), ATH_DBG_RESET,
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"tx hung, resetting the chip\n");
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+ RESET_STAT_INC(sc, RESET_TYPE_TX_HANG);
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ieee80211_queue_work(sc->hw, &sc->hw_reset_work);
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}
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--- a/drivers/net/wireless/ath/ath9k/debug.c
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+++ b/drivers/net/wireless/ath/ath9k/debug.c
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@@ -523,9 +523,22 @@ static ssize_t read_file_wiphy(struct fi
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if (tmp & ATH9K_RX_FILTER_PHYRADAR)
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len += snprintf(buf + len, sizeof(buf) - len, " PHYRADAR");
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if (tmp & ATH9K_RX_FILTER_MCAST_BCAST_ALL)
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- len += snprintf(buf + len, sizeof(buf) - len, " MCAST_BCAST_ALL\n");
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- else
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- len += snprintf(buf + len, sizeof(buf) - len, "\n");
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+ len += snprintf(buf + len, sizeof(buf) - len, " MCAST_BCAST_ALL");
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+
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+ len += snprintf(buf + len, sizeof(buf) - len,
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+ "\n\nReset causes:\n"
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+ " baseband hang: %d\n"
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+ " baseband watchdog: %d\n"
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+ " fatal hardware error interrupt: %d\n"
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+ " tx hardware error: %d\n"
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+ " tx path hang: %d\n"
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+ " pll rx hang: %d\n",
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+ sc->debug.stats.reset[RESET_TYPE_BB_HANG],
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+ sc->debug.stats.reset[RESET_TYPE_BB_WATCHDOG],
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+ sc->debug.stats.reset[RESET_TYPE_FATAL_INT],
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+ sc->debug.stats.reset[RESET_TYPE_TX_ERROR],
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+ sc->debug.stats.reset[RESET_TYPE_TX_HANG],
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+ sc->debug.stats.reset[RESET_TYPE_PLL_HANG]);
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if (len > sizeof(buf))
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len = sizeof(buf);
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