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