static int rtnet_stats_show(struct xnvfile_regular_iterator *it, void *data)
{
struct net_device_stats *stats;
struct rtnet_device *rtdev;
if (it->pos == 0) {
xnvfile_printf(it, "Inter-| Receive "
" | Transmit\n");
xnvfile_printf(it, " face |bytes packets errs drop fifo frame "
"compressed multicast|bytes packets errs "
"drop fifo colls carrier compressed\n");
return 0;
}
rtdev = __rtdev_get_by_index(it->pos);
if (rtdev == NULL)
return VFILE_SEQ_SKIP;
if (rtdev->get_stats == NULL) {
xnvfile_printf(it, "%6s: No statistics available.\n", rtdev->name);
return 0;
}
stats = rtdev->get_stats(rtdev);
xnvfile_printf(it,
"%6s:%8lu %7lu %4lu %4lu %4lu %5lu %10lu %9lu "
"%8lu %7lu %4lu %4lu %4lu %5lu %7lu %10lu\n",
rtdev->name, stats->rx_bytes, stats->rx_packets,
stats->rx_errors,
stats->rx_dropped + stats->rx_missed_errors,
stats->rx_fifo_errors,
stats->rx_length_errors + stats->rx_over_errors +
stats->rx_crc_errors + stats->rx_frame_errors,
stats->rx_compressed, stats->multicast,
stats->tx_bytes, stats->tx_packets,
stats->tx_errors, stats->tx_dropped,
stats->tx_fifo_errors, stats->collisions,
stats->tx_carrier_errors +
stats->tx_aborted_errors +
stats->tx_window_errors +
stats->tx_heartbeat_errors,
stats->tx_compressed);
return 0;
}
/***
* rtdev_get_by_index - find and lock a rtnet_device by its ifindex
* @ifindex: index of device
*/
struct rtnet_device *rtdev_get_by_index(int ifindex)
{
struct rtnet_device *rtdev;
unsigned long flags;
if ((ifindex <= 0) || (ifindex > MAX_RT_DEVICES))
return NULL;
rtos_spin_lock_irqsave(&rtnet_devices_rt_lock, flags);
rtdev = __rtdev_get_by_index(ifindex);
if (rtdev != NULL)
atomic_inc(&rtdev->refcount);
rtos_spin_unlock_irqrestore(&rtnet_devices_rt_lock, flags);
return rtdev;
}
static int rtnet_devices_show(struct xnvfile_regular_iterator *it, void *data)
{
struct rtnet_device *rtdev;
if (data == NULL) {
xnvfile_printf(it, "Index\tName\t\tFlags\n");
return 0;
}
rtdev = __rtdev_get_by_index(it->pos);
if (rtdev == NULL)
return VFILE_SEQ_SKIP;
xnvfile_printf(it, "%d\t%-15s %s%s%s%s\n",
rtdev->ifindex, rtdev->name,
(rtdev->flags & IFF_UP) ? "UP" : "DOWN",
(rtdev->flags & IFF_BROADCAST) ? " BROADCAST" : "",
(rtdev->flags & IFF_LOOPBACK) ? " LOOPBACK" : "",
(rtdev->flags & IFF_PROMISC) ? " PROMISC" : "");
return 0;
}
