qi-hardware/openwrt-xburst
1
0
Fork 0
mirror of git://projects.qi-hardware.com/openwrt-xburst.git synced 2025-04-21 12:27:27 +03:00
Code Activity

ar71xx: add NAPI statistics to the ag71xx driver

Browse Source 
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@19079 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
juhosg
2010-01-08 20:22:55 +00:00
parent b81c8b9002
commit c64ff4c0d6
3 changed files with 114 additions and 13 deletions
Download Patch File Download Diff File Expand all files Collapse all files

78
target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_debugfs.c
View File

@@ -71,8 +71,77 @@ static const struct file_operations ag71xx_fops_int_stats = {
.owner = THIS_MODULE
};
void ag71xx_debugfs_update_napi_stats(struct ag71xx *ag, int rx, int tx)
{
struct ag71xx_napi_stats *stats = &ag->debug.napi_stats;
if (rx) {
stats->rx_count++;
stats->rx_packets += rx;
if (rx <= AG71XX_NAPI_WEIGHT)
stats->rx[rx]++;
if (rx > stats->rx_packets_max)
stats->rx_packets_max = rx;
}
if (tx) {
stats->tx_count++;
stats->tx_packets += tx;
if (tx <= AG71XX_NAPI_WEIGHT)
stats->tx[tx]++;
if (tx > stats->tx_packets_max)
stats->tx_packets_max = tx;
}
}
static ssize_t read_file_napi_stats(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ag71xx *ag = file->private_data;
struct ag71xx_napi_stats *stats = &ag->debug.napi_stats;
char buf[2048];
unsigned int len = 0;
unsigned long rx_avg = 0;
unsigned long tx_avg = 0;
int i;
if (stats->rx_count)
rx_avg = stats->rx_packets / stats->rx_count;
if (stats->tx_count)
tx_avg = stats->tx_packets / stats->tx_count;
len += snprintf(buf + len, sizeof(buf) - len, "%3s %10s %10s\n",
"len", "rx", "tx");
for (i = 1; i <= AG71XX_NAPI_WEIGHT; i++)
len += snprintf(buf + len, sizeof(buf) - len,
"%3d: %10lu %10lu\n",
i, stats->rx[i], stats->tx[i]);
len += snprintf(buf + len, sizeof(buf) - len, "\n");
len += snprintf(buf + len, sizeof(buf) - len, "%3s: %10lu %10lu\n",
"sum", stats->rx_count, stats->tx_count);
len += snprintf(buf + len, sizeof(buf) - len, "%3s: %10lu %10lu\n",
"avg", rx_avg, tx_avg);
len += snprintf(buf + len, sizeof(buf) - len, "%3s: %10lu %10lu\n",
"max", stats->rx_packets_max, stats->tx_packets_max);
len += snprintf(buf + len, sizeof(buf) - len, "%3s: %10lu %10lu\n",
"pkt", stats->rx_packets, stats->tx_packets);
return simple_read_from_buffer(user_buf, count, ppos, buf, len);
}
static const struct file_operations ag71xx_fops_napi_stats = {
.open = ag71xx_debugfs_generic_open,
.read = read_file_napi_stats,
.owner = THIS_MODULE
};
void ag71xx_debugfs_exit(struct ag71xx *ag)
{
debugfs_remove(ag->debug.debugfs_napi_stats);
debugfs_remove(ag->debug.debugfs_int_stats);
debugfs_remove(ag->debug.debugfs_dir);
}
@@ -93,6 +162,15 @@ int ag71xx_debugfs_init(struct ag71xx *ag)
if (!ag->debug.debugfs_int_stats)
goto err;
ag->debug.debugfs_napi_stats =
debugfs_create_file("napi_stats",
S_IRUGO,
ag->debug.debugfs_dir,
ag,
&ag71xx_fops_napi_stats);
if (!ag->debug.debugfs_napi_stats)
goto err;
return 0;
err: