static struct dentry *ag71xx_debugfs_root;
-int ag71xx_debugfs_root_init(void)
+static int ag71xx_debugfs_generic_open(struct inode *inode, struct file *file)
{
- if (ag71xx_debugfs_root)
- return -EBUSY;
+ file->private_data = inode->i_private;
+ return 0;
+}
- ag71xx_debugfs_root = debugfs_create_dir(KBUILD_MODNAME, NULL);
- if (!ag71xx_debugfs_root)
- return -ENOENT;
+void ag71xx_debugfs_update_int_stats(struct ag71xx *ag, u32 status)
+{
+ if (status)
+ ag->debug.int_stats.total++;
+ if (status & AG71XX_INT_TX_PS)
+ ag->debug.int_stats.tx_ps++;
+ if (status & AG71XX_INT_TX_UR)
+ ag->debug.int_stats.tx_ur++;
+ if (status & AG71XX_INT_TX_BE)
+ ag->debug.int_stats.tx_be++;
+ if (status & AG71XX_INT_RX_PR)
+ ag->debug.int_stats.rx_pr++;
+ if (status & AG71XX_INT_RX_OF)
+ ag->debug.int_stats.rx_of++;
+ if (status & AG71XX_INT_RX_BE)
+ ag->debug.int_stats.rx_be++;
+}
- return 0;
+static ssize_t read_file_int_stats(struct file *file, char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+#define PR_INT_STAT(_label, _field) \
+ len += snprintf(buf + len, sizeof(buf) - len, \
+ "%20s: %10lu\n", _label, ag->debug.int_stats._field);
+
+ struct ag71xx *ag = file->private_data;
+ char buf[256];
+ unsigned int len = 0;
+
+ PR_INT_STAT("TX Packet Sent", tx_ps);
+ PR_INT_STAT("TX Underrun", tx_ur);
+ PR_INT_STAT("TX Bus Error", tx_be);
+ PR_INT_STAT("RX Packet Received", rx_pr);
+ PR_INT_STAT("RX Overflow", rx_of);
+ PR_INT_STAT("RX Bus Error", rx_be);
+ len += snprintf(buf + len, sizeof(buf) - len, "\n");
+ PR_INT_STAT("Total", total);
+
+ return simple_read_from_buffer(user_buf, count, ppos, buf, len);
+#undef PR_INT_STAT
}
-void ag71xx_debugfs_root_exit(void)
+static const struct file_operations ag71xx_fops_int_stats = {
+ .open = ag71xx_debugfs_generic_open,
+ .read = read_file_int_stats,
+ .owner = THIS_MODULE
+};
+
+void ag71xx_debugfs_update_napi_stats(struct ag71xx *ag, int rx, int tx)
{
- debugfs_remove(ag71xx_debugfs_root);
- ag71xx_debugfs_root = NULL;
+ 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);
}
if (!ag->debug.debugfs_dir)
goto err;
+ ag->debug.debugfs_int_stats =
+ debugfs_create_file("int_stats",
+ S_IRUGO,
+ ag->debug.debugfs_dir,
+ ag,
+ &ag71xx_fops_int_stats);
+ 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:
ag71xx_debugfs_exit(ag);
return -ENOMEM;
}
+
+int ag71xx_debugfs_root_init(void)
+{
+ if (ag71xx_debugfs_root)
+ return -EBUSY;
+
+ ag71xx_debugfs_root = debugfs_create_dir(KBUILD_MODNAME, NULL);
+ if (!ag71xx_debugfs_root)
+ return -ENOENT;
+
+ return 0;
+}
+
+void ag71xx_debugfs_root_exit(void)
+{
+ debugfs_remove(ag71xx_debugfs_root);
+ ag71xx_debugfs_root = NULL;
+}
projects / openwrt.git / blobdiff