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ath9k_htc: Add ethtool stats support.

Browse Source 
This provides some of the same info found in
the ath9k_htc debugfs through the standard ethtool stats API.

This logic is only supported when ath9k_htc debugfs kernel
feature is enabled, since that is the only time stats
are actually gathered.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Ben Greear 2013-06-19 14:02:15 -07:00 committed by John W. Linville
parent 156652bbed
commit 68185a4b37
4 changed files with 108 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/net/wireless/ath/ath9k/hif_usb.c
View File

@ -234,10 +234,15 @@ static inline void ath9k_skb_queue_complete(struct hif_device_usb *hif_dev,
struct sk_buff *skb;
while ((skb = __skb_dequeue(queue)) != NULL) {
#ifdef CONFIG_ATH9K_HTC_DEBUGFS
int ln = skb->len;
#endif
ath9k_htc_txcompletion_cb(hif_dev->htc_handle,
skb, txok);
if (txok)
if (txok) {
TX_STAT_INC(skb_success);
TX_STAT_ADD(skb_success_bytes, ln);
}
else
TX_STAT_INC(skb_failed);
}
@ -620,6 +625,7 @@ static void ath9k_hif_usb_rx_stream(struct hif_device_usb *hif_dev,
err:
for (i = 0; i < pool_index; i++) {
RX_STAT_ADD(skb_completed_bytes, skb_pool[i]->len);
ath9k_htc_rx_msg(hif_dev->htc_handle, skb_pool[i],
skb_pool[i]->len, USB_WLAN_RX_PIPE);
RX_STAT_INC(skb_completed);

14
drivers/net/wireless/ath/ath9k/htc.h
View File

@ -324,7 +324,9 @@ static inline struct ath9k_htc_tx_ctl *HTC_SKB_CB(struct sk_buff *skb)
#ifdef CONFIG_ATH9K_HTC_DEBUGFS
#define TX_STAT_INC(c) (hif_dev->htc_handle->drv_priv->debug.tx_stats.c++)
#define TX_STAT_ADD(c, a) (hif_dev->htc_handle->drv_priv->debug.tx_stats.c += a)
#define RX_STAT_INC(c) (hif_dev->htc_handle->drv_priv->debug.rx_stats.c++)
#define RX_STAT_ADD(c, a) (hif_dev->htc_handle->drv_priv->debug.rx_stats.c += a)
#define CAB_STAT_INC priv->debug.tx_stats.cab_queued++
#define TX_QSTAT_INC(q) (priv->debug.tx_stats.queue_stats[q]++)
@ -337,6 +339,7 @@ struct ath_tx_stats {
u32 buf_completed;
u32 skb_queued;
u32 skb_success;
u32 skb_success_bytes;
u32 skb_failed;
u32 cab_queued;
u32 queue_stats[IEEE80211_NUM_ACS];
@ -345,6 +348,7 @@ struct ath_tx_stats {
struct ath_rx_stats {
u32 skb_allocated;
u32 skb_completed;
u32 skb_completed_bytes;
u32 skb_dropped;
u32 err_crc;
u32 err_decrypt_crc;
@ -362,10 +366,20 @@ struct ath9k_debug {
struct ath_rx_stats rx_stats;
};
void ath9k_htc_get_et_strings(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
u32 sset, u8 *data);
int ath9k_htc_get_et_sset_count(struct ieee80211_hw *hw,
struct ieee80211_vif *vif, int sset);
void ath9k_htc_get_et_stats(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ethtool_stats *stats, u64 *data);
#else
#define TX_STAT_INC(c) do { } while (0)
#define TX_STAT_ADD(c, a) do { } while (0)
#define RX_STAT_INC(c) do { } while (0)
#define RX_STAT_ADD(c, a) do { } while (0)
#define CAB_STAT_INC do { } while (0)
#define TX_QSTAT_INC(c) do { } while (0)

81
drivers/net/wireless/ath/ath9k/htc_drv_debug.c
View File

@ -902,6 +902,87 @@ static const struct file_operations fops_modal_eeprom = {
.llseek = default_llseek,
};
/* Ethtool support for get-stats */
#define AMKSTR(nm) #nm "_BE", #nm "_BK", #nm "_VI", #nm "_VO"
static const char ath9k_htc_gstrings_stats[][ETH_GSTRING_LEN] = {
"tx_pkts_nic",
"tx_bytes_nic",
"rx_pkts_nic",
"rx_bytes_nic",
AMKSTR(d_tx_pkts),
"d_rx_crc_err",
"d_rx_decrypt_crc_err",
"d_rx_phy_err",
"d_rx_mic_err",
"d_rx_pre_delim_crc_err",
"d_rx_post_delim_crc_err",
"d_rx_decrypt_busy_err",
"d_rx_phyerr_radar",
"d_rx_phyerr_ofdm_timing",
"d_rx_phyerr_cck_timing",
};
#define ATH9K_HTC_SSTATS_LEN ARRAY_SIZE(ath9k_htc_gstrings_stats)
void ath9k_htc_get_et_strings(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
u32 sset, u8 *data)
{
if (sset == ETH_SS_STATS)
memcpy(data, *ath9k_htc_gstrings_stats,
sizeof(ath9k_htc_gstrings_stats));
}
int ath9k_htc_get_et_sset_count(struct ieee80211_hw *hw,
struct ieee80211_vif *vif, int sset)
{
if (sset == ETH_SS_STATS)
return ATH9K_HTC_SSTATS_LEN;
return 0;
}
#define STXBASE priv->debug.tx_stats
#define SRXBASE priv->debug.rx_stats
#define ASTXQ(a) \
data[i++] = STXBASE.a[IEEE80211_AC_BE]; \
data[i++] = STXBASE.a[IEEE80211_AC_BK]; \
data[i++] = STXBASE.a[IEEE80211_AC_VI]; \
data[i++] = STXBASE.a[IEEE80211_AC_VO]
void ath9k_htc_get_et_stats(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ethtool_stats *stats, u64 *data)
{
struct ath9k_htc_priv *priv = hw->priv;
int i = 0;
data[i++] = STXBASE.skb_success;
data[i++] = STXBASE.skb_success_bytes;
data[i++] = SRXBASE.skb_completed;
data[i++] = SRXBASE.skb_completed_bytes;
ASTXQ(queue_stats);
data[i++] = SRXBASE.err_crc;
data[i++] = SRXBASE.err_decrypt_crc;
data[i++] = SRXBASE.err_phy;
data[i++] = SRXBASE.err_mic;
data[i++] = SRXBASE.err_pre_delim;
data[i++] = SRXBASE.err_post_delim;
data[i++] = SRXBASE.err_decrypt_busy;
data[i++] = SRXBASE.err_phy_stats[ATH9K_PHYERR_RADAR];
data[i++] = SRXBASE.err_phy_stats[ATH9K_PHYERR_OFDM_TIMING];
data[i++] = SRXBASE.err_phy_stats[ATH9K_PHYERR_CCK_TIMING];
WARN_ON(i != ATH9K_HTC_SSTATS_LEN);
}
int ath9k_htc_init_debug(struct ath_hw *ah)
{
struct ath_common *common = ath9k_hw_common(ah);

6
drivers/net/wireless/ath/ath9k/htc_drv_main.c
View File

@ -1837,4 +1837,10 @@ struct ieee80211_ops ath9k_htc_ops = {
.set_bitrate_mask = ath9k_htc_set_bitrate_mask,
.get_stats = ath9k_htc_get_stats,
.get_antenna = ath9k_htc_get_antenna,
#ifdef CONFIG_ATH9K_HTC_DEBUGFS
.get_et_sset_count = ath9k_htc_get_et_sset_count,
.get_et_stats = ath9k_htc_get_et_stats,
.get_et_strings = ath9k_htc_get_et_strings,
#endif
};