tools/net/ynl/samples/ethtool.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 #include <stdio.h>
   3 #include <string.h>
   4
   5 #include <ynl.h>
   6
   7 #include <net/if.h>
   8
   9 #include "ethtool-user.h"
  10
  11 int main(int argc, char **argv)
  12 {
  13         struct ethtool_channels_get_req_dump creq = {};
  14         struct ethtool_rings_get_req_dump rreq = {};
  15         struct ethtool_channels_get_list *channels;
  16         struct ethtool_rings_get_list *rings;
  17         struct ynl_sock *ys;
  18
  19         ys = ynl_sock_create(&ynl_ethtool_family, NULL);
  20         if (!ys)
  21                 return 1;
  22
  23         creq._present.header = 1; /* ethtool needs an empty nest, sigh */
  24         channels = ethtool_channels_get_dump(ys, &creq);
  25         if (!channels)
  26                 goto err_close;
  27
  28         printf("Channels:\n");
  29         ynl_dump_foreach(channels, dev) {
  30                 printf("  %8s: ", dev->header.dev_name);
  31                 if (dev->_present.rx_count)
  32                         printf("rx %d ", dev->rx_count);
  33                 if (dev->_present.tx_count)
  34                         printf("tx %d ", dev->tx_count);
  35                 if (dev->_present.combined_count)
  36                         printf("combined %d ", dev->combined_count);
  37                 printf("\n");
  38         }
  39         ethtool_channels_get_list_free(channels);
  40
  41         rreq._present.header = 1; /* ethtool needs an empty nest.. */
  42         rings = ethtool_rings_get_dump(ys, &rreq);
  43         if (!rings)
  44                 goto err_close;
  45
  46         printf("Rings:\n");
  47         ynl_dump_foreach(rings, dev) {
  48                 printf("  %8s: ", dev->header.dev_name);
  49                 if (dev->_present.rx)
  50                         printf("rx %d ", dev->rx);
  51                 if (dev->_present.tx)
  52                         printf("tx %d ", dev->tx);
  53                 printf("\n");
  54         }
  55         ethtool_rings_get_list_free(rings);
  56
  57         ynl_sock_destroy(ys);
  58
  59         return 0;
  60
  61 err_close:
  62         fprintf(stderr, "YNL (%d): %s\n", ys->err.code, ys->err.msg);
  63         ynl_sock_destroy(ys);
  64         return 2;
  65 }