ath9k: Support ethtool getstats api.
This returns many of the values that formerly could only be obtained from debugfs. This should be an improvement when trying to access these counters programatically. Currently this support is only enabled when DEBUGFS is enabled because otherwise these stats are not accumulated. Signed-off-by: Ben Greear <greearb@candelatech.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Ben Greear
John W. Linville
parent
499f42bb03
commit
b90bd9d14f
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@ -2389,6 +2389,134 @@ static int ath9k_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant)
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return 0;
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}
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#ifdef CONFIG_ATH9K_DEBUGFS
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/* Ethtool support for get-stats */
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#define AMKSTR(nm) #nm "_BE", #nm "_BK", #nm "_VI", #nm "_VO"
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static const char ath9k_gstrings_stats[][ETH_GSTRING_LEN] = {
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"tx_pkts_nic",
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"tx_bytes_nic",
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"rx_pkts_nic",
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"rx_bytes_nic",
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AMKSTR(d_tx_pkts),
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AMKSTR(d_tx_bytes),
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AMKSTR(d_tx_mpdus_queued),
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AMKSTR(d_tx_mpdus_completed),
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AMKSTR(d_tx_mpdu_xretries),
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AMKSTR(d_tx_aggregates),
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AMKSTR(d_tx_ampdus_queued_hw),
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AMKSTR(d_tx_ampdus_queued_sw),
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AMKSTR(d_tx_ampdus_completed),
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AMKSTR(d_tx_ampdu_retries),
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AMKSTR(d_tx_ampdu_xretries),
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AMKSTR(d_tx_fifo_underrun),
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AMKSTR(d_tx_op_exceeded),
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AMKSTR(d_tx_timer_expiry),
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AMKSTR(d_tx_desc_cfg_err),
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AMKSTR(d_tx_data_underrun),
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AMKSTR(d_tx_delim_underrun),
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"d_rx_decrypt_crc_err",
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"d_rx_phy_err",
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"d_rx_mic_err",
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"d_rx_pre_delim_crc_err",
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"d_rx_post_delim_crc_err",
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"d_rx_decrypt_busy_err",
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"d_rx_phyerr_radar",
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"d_rx_phyerr_ofdm_timing",
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"d_rx_phyerr_cck_timing",
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};
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#define ATH9K_SSTATS_LEN ARRAY_SIZE(ath9k_gstrings_stats)
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static void ath9k_get_et_strings(struct ieee80211_hw *hw,
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struct ieee80211_vif *vif,
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u32 sset, u8 *data)
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{
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if (sset == ETH_SS_STATS)
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memcpy(data, *ath9k_gstrings_stats,
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sizeof(ath9k_gstrings_stats));
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}
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static int ath9k_get_et_sset_count(struct ieee80211_hw *hw,
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struct ieee80211_vif *vif, int sset)
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{
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if (sset == ETH_SS_STATS)
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return ATH9K_SSTATS_LEN;
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return 0;
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}
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#define PR_QNUM(_n) (sc->tx.txq_map[_n]->axq_qnum)
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#define AWDATA(elem) \
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do { \
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data[i++] = sc->debug.stats.txstats[PR_QNUM(WME_AC_BE)].elem; \
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data[i++] = sc->debug.stats.txstats[PR_QNUM(WME_AC_BK)].elem; \
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data[i++] = sc->debug.stats.txstats[PR_QNUM(WME_AC_VI)].elem; \
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data[i++] = sc->debug.stats.txstats[PR_QNUM(WME_AC_VO)].elem; \
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} while (0)
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#define AWDATA_RX(elem) \
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do { \
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data[i++] = sc->debug.stats.rxstats.elem; \
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} while (0)
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static void ath9k_get_et_stats(struct ieee80211_hw *hw,
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struct ieee80211_vif *vif,
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struct ethtool_stats *stats, u64 *data)
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{
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struct ath_softc *sc = hw->priv;
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int i = 0;
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data[i++] = (sc->debug.stats.txstats[PR_QNUM(WME_AC_BE)].tx_pkts_all +
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sc->debug.stats.txstats[PR_QNUM(WME_AC_BK)].tx_pkts_all +
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sc->debug.stats.txstats[PR_QNUM(WME_AC_VI)].tx_pkts_all +
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sc->debug.stats.txstats[PR_QNUM(WME_AC_VO)].tx_pkts_all);
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data[i++] = (sc->debug.stats.txstats[PR_QNUM(WME_AC_BE)].tx_bytes_all +
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sc->debug.stats.txstats[PR_QNUM(WME_AC_BK)].tx_bytes_all +
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sc->debug.stats.txstats[PR_QNUM(WME_AC_VI)].tx_bytes_all +
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sc->debug.stats.txstats[PR_QNUM(WME_AC_VO)].tx_bytes_all);
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AWDATA_RX(rx_pkts_all);
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AWDATA_RX(rx_bytes_all);
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AWDATA(tx_pkts_all);
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AWDATA(tx_bytes_all);
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AWDATA(queued);
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AWDATA(completed);
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AWDATA(xretries);
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AWDATA(a_aggr);
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AWDATA(a_queued_hw);
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AWDATA(a_queued_sw);
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AWDATA(a_completed);
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AWDATA(a_retries);
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AWDATA(a_xretries);
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AWDATA(fifo_underrun);
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AWDATA(xtxop);
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AWDATA(timer_exp);
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AWDATA(desc_cfg_err);
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AWDATA(data_underrun);
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AWDATA(delim_underrun);
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AWDATA_RX(decrypt_crc_err);
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AWDATA_RX(phy_err);
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AWDATA_RX(mic_err);
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AWDATA_RX(pre_delim_crc_err);
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AWDATA_RX(post_delim_crc_err);
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AWDATA_RX(decrypt_busy_err);
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AWDATA_RX(phy_err_stats[ATH9K_PHYERR_RADAR]);
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AWDATA_RX(phy_err_stats[ATH9K_PHYERR_OFDM_TIMING]);
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AWDATA_RX(phy_err_stats[ATH9K_PHYERR_CCK_TIMING]);
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WARN_ON(i != ATH9K_SSTATS_LEN);
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}
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/* End of ethtool get-stats functions */
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#endif
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struct ieee80211_ops ath9k_ops = {
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.tx = ath9k_tx,
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.start = ath9k_start,
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@ -2417,4 +2545,10 @@ struct ieee80211_ops ath9k_ops = {
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.get_stats = ath9k_get_stats,
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.set_antenna = ath9k_set_antenna,
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.get_antenna = ath9k_get_antenna,
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#ifdef CONFIG_ATH9K_DEBUGFS
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.get_et_sset_count = ath9k_get_et_sset_count,
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.get_et_stats = ath9k_get_et_stats,
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.get_et_strings = ath9k_get_et_strings,
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#endif
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};
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