--- /dev/null
+/*
+ * 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_atx_ac *ac;
+ struct ath_txq *txq;
+ u32 len = 0, size = 4096;
+ char *buf;
+ size_t retval;
+ int tidno, acno;
+
+ 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,
+ "%2s%7s\n", "AC", "SCHED");
+
+ for (acno = 0, ac = &an->ac[acno];
+ acno < IEEE80211_NUM_ACS; acno++, ac++) {
+ txq = ac->txq;
+ ath_txq_lock(sc, txq);
+ len += scnprintf(buf + len, size - len,
+ "%2d%7d\n",
+ acno, ac->sched);
+ ath_txq_unlock(sc, txq);
+ }
+
+ 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, tid = &an->tid[tidno];
+ tidno < IEEE80211_NUM_TIDS; tidno++, tid++) {
+ txq = tid->ac->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,
+ tid->sched);
+ }
+ ath_txq_unlock(sc, txq);
+ }
+exit:
+ retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
+ kfree(buf);
+
+ return retval;
+}
+
+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 == IEEE80211_BAND_2GHZ)
+ rstats->ofdm_stats[rxs->rate_idx - 4].ofdm_cnt++;
+ else
+ rstats->ofdm_stats[rxs->rate_idx].ofdm_cnt++;
+ }
+exit:
+ rcu_read_unlock();
+}
+
+#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 ieee80211_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 == IEEE80211_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;
+}
+
+#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 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);
+}
Code Review / kvmfornfv.git / blobdiff