2 * Copyright (c) 2013 Qualcomm Atheros, Inc.
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
23 static ssize_t read_file_node_aggr(struct file *file, char __user *user_buf,
24 size_t count, loff_t *ppos)
26 struct ath_node *an = file->private_data;
27 struct ath_softc *sc = an->sc;
28 struct ath_atx_tid *tid;
29 struct ath_atx_ac *ac;
31 u32 len = 0, size = 4096;
36 buf = kzalloc(size, GFP_KERNEL);
40 if (!an->sta->ht_cap.ht_supported) {
41 len = scnprintf(buf, size, "%s\n",
46 len = scnprintf(buf, size, "Max-AMPDU: %d\n",
48 len += scnprintf(buf + len, size - len, "MPDU Density: %d\n\n",
51 len += scnprintf(buf + len, size - len,
52 "%2s%7s\n", "AC", "SCHED");
54 for (acno = 0, ac = &an->ac[acno];
55 acno < IEEE80211_NUM_ACS; acno++, ac++) {
57 ath_txq_lock(sc, txq);
58 len += scnprintf(buf + len, size - len,
61 ath_txq_unlock(sc, txq);
64 len += scnprintf(buf + len, size - len,
65 "\n%3s%11s%10s%10s%10s%10s%9s%6s%8s\n",
66 "TID", "SEQ_START", "SEQ_NEXT", "BAW_SIZE",
67 "BAW_HEAD", "BAW_TAIL", "BAR_IDX", "SCHED", "PAUSED");
69 for (tidno = 0, tid = &an->tid[tidno];
70 tidno < IEEE80211_NUM_TIDS; tidno++, tid++) {
72 ath_txq_lock(sc, txq);
74 len += scnprintf(buf + len, size - len,
75 "%3d%11d%10d%10d%10d%10d%9d%6d%8d\n",
86 ath_txq_unlock(sc, txq);
89 retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
95 static const struct file_operations fops_node_aggr = {
96 .read = read_file_node_aggr,
99 .llseek = default_llseek,
106 void ath_debug_rate_stats(struct ath_softc *sc,
107 struct ath_rx_status *rs,
110 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
111 struct ath_hw *ah = sc->sc_ah;
112 struct ieee80211_rx_status *rxs;
113 struct ath_rx_rate_stats *rstats;
114 struct ieee80211_sta *sta;
117 if (!ieee80211_is_data(hdr->frame_control))
122 sta = ieee80211_find_sta_by_ifaddr(sc->hw, hdr->addr2, NULL);
126 an = (struct ath_node *) sta->drv_priv;
127 rstats = &an->rx_rate_stats;
128 rxs = IEEE80211_SKB_RXCB(skb);
130 if (IS_HT_RATE(rs->rs_rate)) {
131 if (rxs->rate_idx >= ARRAY_SIZE(rstats->ht_stats))
134 if (rxs->flag & RX_FLAG_40MHZ)
135 rstats->ht_stats[rxs->rate_idx].ht40_cnt++;
137 rstats->ht_stats[rxs->rate_idx].ht20_cnt++;
139 if (rxs->flag & RX_FLAG_SHORT_GI)
140 rstats->ht_stats[rxs->rate_idx].sgi_cnt++;
142 rstats->ht_stats[rxs->rate_idx].lgi_cnt++;
147 if (IS_CCK_RATE(rs->rs_rate)) {
148 if (rxs->flag & RX_FLAG_SHORTPRE)
149 rstats->cck_stats[rxs->rate_idx].cck_sp_cnt++;
151 rstats->cck_stats[rxs->rate_idx].cck_lp_cnt++;
156 if (IS_OFDM_RATE(rs->rs_rate)) {
157 if (ah->curchan->chan->band == IEEE80211_BAND_2GHZ)
158 rstats->ofdm_stats[rxs->rate_idx - 4].ofdm_cnt++;
160 rstats->ofdm_stats[rxs->rate_idx].ofdm_cnt++;
166 #define PRINT_CCK_RATE(str, i, sp) \
168 len += scnprintf(buf + len, size - len, \
171 (sp) ? rstats->cck_stats[i].cck_sp_cnt : \
172 rstats->cck_stats[i].cck_lp_cnt); \
175 #define PRINT_OFDM_RATE(str, i) \
177 len += scnprintf(buf + len, size - len, \
180 rstats->ofdm_stats[i].ofdm_cnt); \
183 static ssize_t read_file_node_recv(struct file *file, char __user *user_buf,
184 size_t count, loff_t *ppos)
186 struct ath_node *an = file->private_data;
187 struct ath_softc *sc = an->sc;
188 struct ath_hw *ah = sc->sc_ah;
189 struct ath_rx_rate_stats *rstats;
190 struct ieee80211_sta *sta = an->sta;
191 enum ieee80211_band band;
192 u32 len = 0, size = 4096;
197 buf = kzalloc(size, GFP_KERNEL);
201 band = ah->curchan->chan->band;
202 rstats = &an->rx_rate_stats;
204 if (!sta->ht_cap.ht_supported)
207 len += scnprintf(buf + len, size - len,
208 "%24s%10s%10s%10s\n",
209 "HT20", "HT40", "SGI", "LGI");
211 for (i = 0; i < 24; i++) {
212 len += scnprintf(buf + len, size - len,
213 "%8s%3u : %10u%10u%10u%10u\n",
215 rstats->ht_stats[i].ht20_cnt,
216 rstats->ht_stats[i].ht40_cnt,
217 rstats->ht_stats[i].sgi_cnt,
218 rstats->ht_stats[i].lgi_cnt);
221 len += scnprintf(buf + len, size - len, "\n");
224 if (band == IEEE80211_BAND_2GHZ) {
225 PRINT_CCK_RATE("CCK-1M/LP", 0, false);
226 PRINT_CCK_RATE("CCK-2M/LP", 1, false);
227 PRINT_CCK_RATE("CCK-5.5M/LP", 2, false);
228 PRINT_CCK_RATE("CCK-11M/LP", 3, false);
230 PRINT_CCK_RATE("CCK-2M/SP", 1, true);
231 PRINT_CCK_RATE("CCK-5.5M/SP", 2, true);
232 PRINT_CCK_RATE("CCK-11M/SP", 3, true);
235 PRINT_OFDM_RATE("OFDM-6M", 0);
236 PRINT_OFDM_RATE("OFDM-9M", 1);
237 PRINT_OFDM_RATE("OFDM-12M", 2);
238 PRINT_OFDM_RATE("OFDM-18M", 3);
239 PRINT_OFDM_RATE("OFDM-24M", 4);
240 PRINT_OFDM_RATE("OFDM-36M", 5);
241 PRINT_OFDM_RATE("OFDM-48M", 6);
242 PRINT_OFDM_RATE("OFDM-54M", 7);
244 retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
250 #undef PRINT_OFDM_RATE
251 #undef PRINT_CCK_RATE
253 static const struct file_operations fops_node_recv = {
254 .read = read_file_node_recv,
256 .owner = THIS_MODULE,
257 .llseek = default_llseek,
260 void ath9k_sta_add_debugfs(struct ieee80211_hw *hw,
261 struct ieee80211_vif *vif,
262 struct ieee80211_sta *sta,
265 struct ath_node *an = (struct ath_node *)sta->drv_priv;
267 debugfs_create_file("node_aggr", S_IRUGO, dir, an, &fops_node_aggr);
268 debugfs_create_file("node_recv", S_IRUGO, dir, an, &fops_node_recv);