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254 lines
6.4 KiB
254 lines
6.4 KiB
/* |
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* Copyright (c) 2013 Qualcomm Atheros, Inc. |
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* |
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* Permission to use, copy, modify, and/or distribute this software for any |
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* purpose with or without fee is hereby granted, provided that the above |
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* copyright notice and this permission notice appear in all copies. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
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*/ |
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#include "ath9k.h" |
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/*************/ |
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/* node_aggr */ |
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/*************/ |
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static ssize_t read_file_node_aggr(struct file *file, char __user *user_buf, |
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size_t count, loff_t *ppos) |
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{ |
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struct ath_node *an = file->private_data; |
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struct ath_softc *sc = an->sc; |
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struct ath_atx_tid *tid; |
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struct ath_txq *txq; |
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u32 len = 0, size = 4096; |
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char *buf; |
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size_t retval; |
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int tidno; |
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buf = kzalloc(size, GFP_KERNEL); |
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if (buf == NULL) |
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return -ENOMEM; |
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if (!an->sta->ht_cap.ht_supported) { |
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len = scnprintf(buf, size, "%s\n", |
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"HT not supported"); |
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goto exit; |
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} |
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len = scnprintf(buf, size, "Max-AMPDU: %d\n", |
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an->maxampdu); |
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len += scnprintf(buf + len, size - len, "MPDU Density: %d\n\n", |
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an->mpdudensity); |
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len += scnprintf(buf + len, size - len, |
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"\n%3s%11s%10s%10s%10s%10s%9s%6s%8s\n", |
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"TID", "SEQ_START", "SEQ_NEXT", "BAW_SIZE", |
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"BAW_HEAD", "BAW_TAIL", "BAR_IDX", "SCHED", "PAUSED"); |
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for (tidno = 0; tidno < IEEE80211_NUM_TIDS; tidno++) { |
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tid = ath_node_to_tid(an, tidno); |
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txq = tid->txq; |
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ath_txq_lock(sc, txq); |
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if (tid->active) { |
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len += scnprintf(buf + len, size - len, |
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"%3d%11d%10d%10d%10d%10d%9d%6d\n", |
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tid->tidno, |
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tid->seq_start, |
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tid->seq_next, |
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tid->baw_size, |
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tid->baw_head, |
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tid->baw_tail, |
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tid->bar_index, |
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!list_empty(&tid->list)); |
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} |
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ath_txq_unlock(sc, txq); |
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} |
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exit: |
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retval = simple_read_from_buffer(user_buf, count, ppos, buf, len); |
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kfree(buf); |
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return retval; |
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} |
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static const struct file_operations fops_node_aggr = { |
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.read = read_file_node_aggr, |
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.open = simple_open, |
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.owner = THIS_MODULE, |
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.llseek = default_llseek, |
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}; |
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/*************/ |
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/* node_recv */ |
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/*************/ |
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void ath_debug_rate_stats(struct ath_softc *sc, |
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struct ath_rx_status *rs, |
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struct sk_buff *skb) |
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{ |
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struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; |
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struct ath_hw *ah = sc->sc_ah; |
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struct ieee80211_rx_status *rxs; |
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struct ath_rx_rate_stats *rstats; |
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struct ieee80211_sta *sta; |
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struct ath_node *an; |
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if (!ieee80211_is_data(hdr->frame_control)) |
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return; |
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rcu_read_lock(); |
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sta = ieee80211_find_sta_by_ifaddr(sc->hw, hdr->addr2, NULL); |
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if (!sta) |
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goto exit; |
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an = (struct ath_node *) sta->drv_priv; |
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rstats = &an->rx_rate_stats; |
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rxs = IEEE80211_SKB_RXCB(skb); |
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if (IS_HT_RATE(rs->rs_rate)) { |
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if (rxs->rate_idx >= ARRAY_SIZE(rstats->ht_stats)) |
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goto exit; |
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if (rxs->bw == RATE_INFO_BW_40) |
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rstats->ht_stats[rxs->rate_idx].ht40_cnt++; |
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else |
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rstats->ht_stats[rxs->rate_idx].ht20_cnt++; |
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if (rxs->enc_flags & RX_ENC_FLAG_SHORT_GI) |
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rstats->ht_stats[rxs->rate_idx].sgi_cnt++; |
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else |
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rstats->ht_stats[rxs->rate_idx].lgi_cnt++; |
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goto exit; |
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} |
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if (IS_CCK_RATE(rs->rs_rate)) { |
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if (rxs->enc_flags & RX_ENC_FLAG_SHORTPRE) |
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rstats->cck_stats[rxs->rate_idx].cck_sp_cnt++; |
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else |
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rstats->cck_stats[rxs->rate_idx].cck_lp_cnt++; |
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goto exit; |
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} |
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if (IS_OFDM_RATE(rs->rs_rate)) { |
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if (ah->curchan->chan->band == NL80211_BAND_2GHZ) |
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rstats->ofdm_stats[rxs->rate_idx - 4].ofdm_cnt++; |
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else |
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rstats->ofdm_stats[rxs->rate_idx].ofdm_cnt++; |
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} |
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exit: |
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rcu_read_unlock(); |
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} |
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#define PRINT_CCK_RATE(str, i, sp) \ |
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do { \ |
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len += scnprintf(buf + len, size - len, \ |
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"%11s : %10u\n", \ |
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str, \ |
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(sp) ? rstats->cck_stats[i].cck_sp_cnt : \ |
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rstats->cck_stats[i].cck_lp_cnt); \ |
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} while (0) |
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#define PRINT_OFDM_RATE(str, i) \ |
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do { \ |
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len += scnprintf(buf + len, size - len, \ |
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"%11s : %10u\n", \ |
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str, \ |
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rstats->ofdm_stats[i].ofdm_cnt); \ |
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} while (0) |
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static ssize_t read_file_node_recv(struct file *file, char __user *user_buf, |
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size_t count, loff_t *ppos) |
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{ |
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struct ath_node *an = file->private_data; |
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struct ath_softc *sc = an->sc; |
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struct ath_hw *ah = sc->sc_ah; |
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struct ath_rx_rate_stats *rstats; |
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struct ieee80211_sta *sta = an->sta; |
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enum nl80211_band band; |
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u32 len = 0, size = 4096; |
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char *buf; |
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size_t retval; |
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int i; |
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buf = kzalloc(size, GFP_KERNEL); |
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if (buf == NULL) |
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return -ENOMEM; |
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band = ah->curchan->chan->band; |
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rstats = &an->rx_rate_stats; |
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if (!sta->ht_cap.ht_supported) |
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goto legacy; |
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len += scnprintf(buf + len, size - len, |
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"%24s%10s%10s%10s\n", |
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"HT20", "HT40", "SGI", "LGI"); |
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for (i = 0; i < 24; i++) { |
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len += scnprintf(buf + len, size - len, |
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"%8s%3u : %10u%10u%10u%10u\n", |
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"MCS", i, |
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rstats->ht_stats[i].ht20_cnt, |
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rstats->ht_stats[i].ht40_cnt, |
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rstats->ht_stats[i].sgi_cnt, |
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rstats->ht_stats[i].lgi_cnt); |
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} |
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len += scnprintf(buf + len, size - len, "\n"); |
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legacy: |
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if (band == NL80211_BAND_2GHZ) { |
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PRINT_CCK_RATE("CCK-1M/LP", 0, false); |
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PRINT_CCK_RATE("CCK-2M/LP", 1, false); |
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PRINT_CCK_RATE("CCK-5.5M/LP", 2, false); |
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PRINT_CCK_RATE("CCK-11M/LP", 3, false); |
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PRINT_CCK_RATE("CCK-2M/SP", 1, true); |
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PRINT_CCK_RATE("CCK-5.5M/SP", 2, true); |
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PRINT_CCK_RATE("CCK-11M/SP", 3, true); |
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} |
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PRINT_OFDM_RATE("OFDM-6M", 0); |
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PRINT_OFDM_RATE("OFDM-9M", 1); |
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PRINT_OFDM_RATE("OFDM-12M", 2); |
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PRINT_OFDM_RATE("OFDM-18M", 3); |
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PRINT_OFDM_RATE("OFDM-24M", 4); |
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PRINT_OFDM_RATE("OFDM-36M", 5); |
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PRINT_OFDM_RATE("OFDM-48M", 6); |
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PRINT_OFDM_RATE("OFDM-54M", 7); |
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retval = simple_read_from_buffer(user_buf, count, ppos, buf, len); |
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kfree(buf); |
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return retval; |
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} |
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#undef PRINT_OFDM_RATE |
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#undef PRINT_CCK_RATE |
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static const struct file_operations fops_node_recv = { |
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.read = read_file_node_recv, |
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.open = simple_open, |
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.owner = THIS_MODULE, |
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.llseek = default_llseek, |
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}; |
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void ath9k_sta_add_debugfs(struct ieee80211_hw *hw, |
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struct ieee80211_vif *vif, |
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struct ieee80211_sta *sta, |
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struct dentry *dir) |
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{ |
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struct ath_node *an = (struct ath_node *)sta->drv_priv; |
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debugfs_create_file("node_aggr", 0444, dir, an, &fops_node_aggr); |
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debugfs_create_file("node_recv", 0444, dir, an, &fops_node_recv); |
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}
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