Commit 4a5eccaa authored by Ben Greear's avatar Ben Greear Committed by Johannes Berg

mac80211: Show pending txqlen in debugfs.

Could be useful for debugging memory consumption issues,
and perhaps power-save as well.
Signed-off-by: default avatarBen Greear <greearb@candelatech.com>
Signed-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
parent 11197d00
...@@ -243,6 +243,31 @@ static ssize_t hwflags_read(struct file *file, char __user *user_buf, ...@@ -243,6 +243,31 @@ static ssize_t hwflags_read(struct file *file, char __user *user_buf,
return rv; return rv;
} }
static ssize_t misc_read(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ieee80211_local *local = file->private_data;
/* Max len of each line is 16 characters, plus 9 for 'pending:\n' */
size_t bufsz = IEEE80211_MAX_QUEUES * 16 + 9;
char *buf = kzalloc(bufsz, GFP_KERNEL);
char *pos = buf, *end = buf + bufsz - 1;
ssize_t rv;
int i;
int ln;
pos += scnprintf(pos, end - pos, "pending:\n");
for (i = 0; i < IEEE80211_MAX_QUEUES; i++) {
ln = skb_queue_len(&local->pending[i]);
pos += scnprintf(pos, end - pos, "[%i] %d\n",
i, ln);
}
rv = simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf));
kfree(buf);
return rv;
}
static ssize_t queues_read(struct file *file, char __user *user_buf, static ssize_t queues_read(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos) size_t count, loff_t *ppos)
{ {
...@@ -263,6 +288,7 @@ static ssize_t queues_read(struct file *file, char __user *user_buf, ...@@ -263,6 +288,7 @@ static ssize_t queues_read(struct file *file, char __user *user_buf,
DEBUGFS_READONLY_FILE_OPS(hwflags); DEBUGFS_READONLY_FILE_OPS(hwflags);
DEBUGFS_READONLY_FILE_OPS(queues); DEBUGFS_READONLY_FILE_OPS(queues);
DEBUGFS_READONLY_FILE_OPS(misc);
/* statistics stuff */ /* statistics stuff */
...@@ -331,6 +357,7 @@ void debugfs_hw_add(struct ieee80211_local *local) ...@@ -331,6 +357,7 @@ void debugfs_hw_add(struct ieee80211_local *local)
DEBUGFS_ADD(total_ps_buffered); DEBUGFS_ADD(total_ps_buffered);
DEBUGFS_ADD(wep_iv); DEBUGFS_ADD(wep_iv);
DEBUGFS_ADD(queues); DEBUGFS_ADD(queues);
DEBUGFS_ADD(misc);
#ifdef CONFIG_PM #ifdef CONFIG_PM
DEBUGFS_ADD_MODE(reset, 0200); DEBUGFS_ADD_MODE(reset, 0200);
#endif #endif
......
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