mirror of https://gitee.com/openkylin/linux.git
98 lines
2.9 KiB
C
98 lines
2.9 KiB
C
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/*
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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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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_atx_ac *ac;
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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, acno;
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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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"%2s%7s\n", "AC", "SCHED");
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for (acno = 0, ac = &an->ac[acno];
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acno < IEEE80211_NUM_ACS; acno++, ac++) {
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txq = ac->txq;
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ath_txq_lock(sc, txq);
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len += scnprintf(buf + len, size - len,
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"%2d%7d\n",
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acno, ac->sched);
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ath_txq_unlock(sc, txq);
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}
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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, tid = &an->tid[tidno];
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tidno < IEEE80211_NUM_TIDS; tidno++, tid++) {
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txq = tid->ac->txq;
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ath_txq_lock(sc, txq);
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len += scnprintf(buf + len, size - len,
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"%3d%11d%10d%10d%10d%10d%9d%6d%8d\n",
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tid->tidno, tid->seq_start, tid->seq_next,
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tid->baw_size, tid->baw_head, tid->baw_tail,
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tid->bar_index, tid->sched, tid->paused);
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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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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", S_IRUGO, dir, an, &fops_node_aggr);
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}
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