diff options
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/debug.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/debug.c | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath9k/debug.c b/drivers/net/wireless/ath/ath9k/debug.c index f9df82bdd213..086dee841622 100644 --- a/drivers/net/wireless/ath/ath9k/debug.c +++ b/drivers/net/wireless/ath/ath9k/debug.c @@ -558,6 +558,50 @@ static ssize_t read_file_xmit(struct file *file, char __user *user_buf, return retval; } +static ssize_t read_file_queues(struct file *file, char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct ath_softc *sc = file->private_data; + struct ath_txq *txq; + char *buf; + unsigned int len = 0, size = 1024; + ssize_t retval = 0; + int i; + char *qname[4] = {"VO", "VI", "BE", "BK"}; + + buf = kzalloc(size, GFP_KERNEL); + if (buf == NULL) + return -ENOMEM; + + for (i = 0; i < IEEE80211_NUM_ACS; i++) { + txq = sc->tx.txq_map[i]; + len += snprintf(buf + len, size - len, "(%s): ", qname[i]); + + ath_txq_lock(sc, txq); + + len += snprintf(buf + len, size - len, "%s: %d ", + "qnum", txq->axq_qnum); + len += snprintf(buf + len, size - len, "%s: %2d ", + "qdepth", txq->axq_depth); + len += snprintf(buf + len, size - len, "%s: %2d ", + "ampdu-depth", txq->axq_ampdu_depth); + len += snprintf(buf + len, size - len, "%s: %3d ", + "pending", txq->pending_frames); + len += snprintf(buf + len, size - len, "%s: %d\n", + "stopped", txq->stopped); + + ath_txq_unlock(sc, txq); + } + + if (len > size) + len = size; + + retval = simple_read_from_buffer(user_buf, count, ppos, buf, len); + kfree(buf); + + return retval; +} + static ssize_t read_file_stations(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { @@ -828,6 +872,13 @@ static const struct file_operations fops_xmit = { .llseek = default_llseek, }; +static const struct file_operations fops_queues = { + .read = read_file_queues, + .open = simple_open, + .owner = THIS_MODULE, + .llseek = default_llseek, +}; + static const struct file_operations fops_stations = { .read = read_file_stations, .open = simple_open, @@ -1553,6 +1604,8 @@ int ath9k_init_debug(struct ath_hw *ah) &fops_interrupt); debugfs_create_file("xmit", S_IRUSR, sc->debug.debugfs_phy, sc, &fops_xmit); + debugfs_create_file("queues", S_IRUSR, sc->debug.debugfs_phy, sc, + &fops_queues); debugfs_create_u32("qlen_bk", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy, &sc->tx.txq_max_pending[IEEE80211_AC_BK]); debugfs_create_u32("qlen_be", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy, |