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Release 4.11 drivers/net/wireless/ath/ath9k/debug_sta.c

/*
 * Copyright (c) 2013 Qualcomm Atheros, Inc.
 *
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#include "ath9k.h"

/*************/
/* node_aggr */
/*************/


static ssize_t read_file_node_aggr(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct ath_node *an = file->private_data; struct ath_softc *sc = an->sc; struct ath_atx_tid *tid; struct ath_txq *txq; u32 len = 0, size = 4096; char *buf; size_t retval; int tidno; buf = kzalloc(size, GFP_KERNEL); if (buf == NULL) return -ENOMEM; if (!an->sta->ht_cap.ht_supported) { len = scnprintf(buf, size, "%s\n", "HT not supported"); goto exit; } len = scnprintf(buf, size, "Max-AMPDU: %d\n", an->maxampdu); len += scnprintf(buf + len, size - len, "MPDU Density: %d\n\n", an->mpdudensity); len += scnprintf(buf + len, size - len, "\n%3s%11s%10s%10s%10s%10s%9s%6s%8s\n", "TID", "SEQ_START", "SEQ_NEXT", "BAW_SIZE", "BAW_HEAD", "BAW_TAIL", "BAR_IDX", "SCHED", "PAUSED"); for (tidno = 0; tidno < IEEE80211_NUM_TIDS; tidno++) { tid = ath_node_to_tid(an, tidno); txq = tid->txq; ath_txq_lock(sc, txq); if (tid->active) { len += scnprintf(buf + len, size - len, "%3d%11d%10d%10d%10d%10d%9d%6d\n", tid->tidno, tid->seq_start, tid->seq_next, tid->baw_size, tid->baw_head, tid->baw_tail, tid->bar_index, !list_empty(&tid->list)); } ath_txq_unlock(sc, txq); } exit: retval = simple_read_from_buffer(user_buf, count, ppos, buf, len); kfree(buf); return retval; }

Contributors

PersonTokensPropCommitsCommitProp
Sujith Manoharan29894.90%240.00%
Toke Höiland-Jörgensen92.87%120.00%
Felix Fietkau72.23%240.00%
Total314100.00%5100.00%

static const struct file_operations fops_node_aggr = { .read = read_file_node_aggr, .open = simple_open, .owner = THIS_MODULE, .llseek = default_llseek, }; /*************/ /* node_recv */ /*************/
void ath_debug_rate_stats(struct ath_softc *sc, struct ath_rx_status *rs, struct sk_buff *skb) { struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; struct ath_hw *ah = sc->sc_ah; struct ieee80211_rx_status *rxs; struct ath_rx_rate_stats *rstats; struct ieee80211_sta *sta; struct ath_node *an; if (!ieee80211_is_data(hdr->frame_control)) return; rcu_read_lock(); sta = ieee80211_find_sta_by_ifaddr(sc->hw, hdr->addr2, NULL); if (!sta) goto exit; an = (struct ath_node *) sta->drv_priv; rstats = &an->rx_rate_stats; rxs = IEEE80211_SKB_RXCB(skb); if (IS_HT_RATE(rs->rs_rate)) { if (rxs->rate_idx >= ARRAY_SIZE(rstats->ht_stats)) goto exit; if (rxs->flag & RX_FLAG_40MHZ) rstats->ht_stats[rxs->rate_idx].ht40_cnt++; else rstats->ht_stats[rxs->rate_idx].ht20_cnt++; if (rxs->flag & RX_FLAG_SHORT_GI) rstats->ht_stats[rxs->rate_idx].sgi_cnt++; else rstats->ht_stats[rxs->rate_idx].lgi_cnt++; goto exit; } if (IS_CCK_RATE(rs->rs_rate)) { if (rxs->flag & RX_FLAG_SHORTPRE) rstats->cck_stats[rxs->rate_idx].cck_sp_cnt++; else rstats->cck_stats[rxs->rate_idx].cck_lp_cnt++; goto exit; } if (IS_OFDM_RATE(rs->rs_rate)) { if (ah->curchan->chan->band == NL80211_BAND_2GHZ) rstats->ofdm_stats[rxs->rate_idx - 4].ofdm_cnt++; else rstats->ofdm_stats[rxs->rate_idx].ofdm_cnt++; } exit: rcu_read_unlock(); }

Contributors

PersonTokensPropCommitsCommitProp
Sujith Manoharan32299.69%375.00%
Johannes Berg10.31%125.00%
Total323100.00%4100.00%

#define PRINT_CCK_RATE(str, i, sp) \ do { \ len += scnprintf(buf + len, size - len, \ "%11s : %10u\n", \ str, \ (sp) ? rstats->cck_stats[i].cck_sp_cnt : \ rstats->cck_stats[i].cck_lp_cnt); \ } while (0) #define PRINT_OFDM_RATE(str, i) \ do { \ len += scnprintf(buf + len, size - len, \ "%11s : %10u\n", \ str, \ rstats->ofdm_stats[i].ofdm_cnt); \ } while (0)
static ssize_t read_file_node_recv(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct ath_node *an = file->private_data; struct ath_softc *sc = an->sc; struct ath_hw *ah = sc->sc_ah; struct ath_rx_rate_stats *rstats; struct ieee80211_sta *sta = an->sta; enum nl80211_band band; u32 len = 0, size = 4096; char *buf; size_t retval; int i; buf = kzalloc(size, GFP_KERNEL); if (buf == NULL) return -ENOMEM; band = ah->curchan->chan->band; rstats = &an->rx_rate_stats; if (!sta->ht_cap.ht_supported) goto legacy; len += scnprintf(buf + len, size - len, "%24s%10s%10s%10s\n", "HT20", "HT40", "SGI", "LGI"); for (i = 0; i < 24; i++) { len += scnprintf(buf + len, size - len, "%8s%3u : %10u%10u%10u%10u\n", "MCS", i, rstats->ht_stats[i].ht20_cnt, rstats->ht_stats[i].ht40_cnt, rstats->ht_stats[i].sgi_cnt, rstats->ht_stats[i].lgi_cnt); } len += scnprintf(buf + len, size - len, "\n"); legacy: if (band == NL80211_BAND_2GHZ) { PRINT_CCK_RATE("CCK-1M/LP", 0, false); PRINT_CCK_RATE("CCK-2M/LP", 1, false); PRINT_CCK_RATE("CCK-5.5M/LP", 2, false); PRINT_CCK_RATE("CCK-11M/LP", 3, false); PRINT_CCK_RATE("CCK-2M/SP", 1, true); PRINT_CCK_RATE("CCK-5.5M/SP", 2, true); PRINT_CCK_RATE("CCK-11M/SP", 3, true); } PRINT_OFDM_RATE("OFDM-6M", 0); PRINT_OFDM_RATE("OFDM-9M", 1); PRINT_OFDM_RATE("OFDM-12M", 2); PRINT_OFDM_RATE("OFDM-18M", 3); PRINT_OFDM_RATE("OFDM-24M", 4); PRINT_OFDM_RATE("OFDM-36M", 5); PRINT_OFDM_RATE("OFDM-48M", 6); PRINT_OFDM_RATE("OFDM-54M", 7); retval = simple_read_from_buffer(user_buf, count, ppos, buf, len); kfree(buf); return retval; }

Contributors

PersonTokensPropCommitsCommitProp
Sujith Manoharan39399.49%150.00%
Johannes Berg20.51%150.00%
Total395100.00%2100.00%

#undef PRINT_OFDM_RATE #undef PRINT_CCK_RATE static const struct file_operations fops_node_recv = { .read = read_file_node_recv, .open = simple_open, .owner = THIS_MODULE, .llseek = default_llseek, };
void ath_debug_airtime(struct ath_softc *sc, struct ath_node *an, u32 rx, u32 tx) { struct ath_airtime_stats *astats = &an->airtime_stats; astats->rx_airtime += rx; astats->tx_airtime += tx; }

Contributors

PersonTokensPropCommitsCommitProp
Toke Höiland-Jörgensen43100.00%1100.00%
Total43100.00%1100.00%


static ssize_t read_airtime(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct ath_node *an = file->private_data; struct ath_airtime_stats *astats; static const char *qname[4] = { "VO", "VI", "BE", "BK" }; u32 len = 0, size = 256; char *buf; size_t retval; int i; buf = kzalloc(size, GFP_KERNEL); if (buf == NULL) return -ENOMEM; astats = &an->airtime_stats; len += scnprintf(buf + len, size - len, "RX: %u us\n", astats->rx_airtime); len += scnprintf(buf + len, size - len, "TX: %u us\n", astats->tx_airtime); len += scnprintf(buf + len, size - len, "Deficit: "); for (i = 0; i < 4; i++) len += scnprintf(buf+len, size - len, "%s: %lld us ", qname[i], an->airtime_deficit[i]); if (len < size) buf[len++] = '\n'; retval = simple_read_from_buffer(user_buf, count, ppos, buf, len); kfree(buf); return retval; }

Contributors

PersonTokensPropCommitsCommitProp
Toke Höiland-Jörgensen231100.00%1100.00%
Total231100.00%1100.00%

static const struct file_operations fops_airtime = { .read = read_airtime, .open = simple_open, .owner = THIS_MODULE, .llseek = default_llseek, };
void ath9k_sta_add_debugfs(struct ieee80211_hw *hw, struct ieee80211_vif *vif, struct ieee80211_sta *sta, struct dentry *dir) { struct ath_node *an = (struct ath_node *)sta->drv_priv; debugfs_create_file("node_aggr", S_IRUGO, dir, an, &fops_node_aggr); debugfs_create_file("node_recv", S_IRUGO, dir, an, &fops_node_recv); debugfs_create_file("airtime", S_IRUGO, dir, an, &fops_airtime); }

Contributors

PersonTokensPropCommitsCommitProp
Sujith Manoharan6782.72%266.67%
Toke Höiland-Jörgensen1417.28%133.33%
Total81100.00%3100.00%


Overall Contributors

PersonTokensPropCommitsCommitProp
Sujith Manoharan117477.80%444.44%
Toke Höiland-Jörgensen32521.54%222.22%
Felix Fietkau70.46%222.22%
Johannes Berg30.20%111.11%
Total1509100.00%9100.00%
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