target/linux/generic/pending-4.4/070-v4.8-0003-bgmac-Maintain-some-netdev-statistics.patch

   1 From 6d490f62a4c7f11c552591bdd08eda3636aa0db9 Mon Sep 17 00:00:00 2001
   2 From: Florian Fainelli <f.fainelli@gmail.com>
   3 Date: Tue, 7 Jun 2016 15:06:15 -0700
   4 Subject: [PATCH 3/3] bgmac: Maintain some netdev statistics
   5
   6 Add a few netdev statistics to report transmitted and received bytes and
   7 packets and a few obvious errors.
   8
   9 Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
  10 Signed-off-by: David S. Miller <davem@davemloft.net>
  11 ---
  12  drivers/net/ethernet/broadcom/bgmac.c | 10 ++++++++++
  13  1 file changed, 10 insertions(+)
  14
  15 --- a/drivers/net/ethernet/broadcom/bgmac.c
  16 +++ b/drivers/net/ethernet/broadcom/bgmac.c
  17 @@ -246,6 +246,8 @@ err_dma_head:
  18
  19  err_drop:
  20         dev_kfree_skb(skb);
  21 +       net_dev->stats.tx_dropped++;
  22 +       net_dev->stats.tx_errors++;
  23         return NETDEV_TX_OK;
  24  }
  25
  26 @@ -285,6 +287,8 @@ static void bgmac_dma_tx_free(struct bgm
  27                                        DMA_TO_DEVICE);
  28
  29                 if (slot->skb) {
  30 +                       bgmac->net_dev->stats.tx_bytes += slot->skb->len;
  31 +                       bgmac->net_dev->stats.tx_packets++;
  32                         bytes_compl += slot->skb->len;
  33                         pkts_compl++;
  34
  35 @@ -468,6 +472,7 @@ static int bgmac_dma_rx_read(struct bgma
  36                                 bgmac_err(bgmac, "Found poisoned packet at slot %d, DMA issue!\n",
  37                                           ring->start);
  38                                 put_page(virt_to_head_page(buf));
  39 +                               bgmac->net_dev->stats.rx_errors++;
  40                                 break;
  41                         }
  42
  43 @@ -475,6 +480,8 @@ static int bgmac_dma_rx_read(struct bgma
  44                                 bgmac_err(bgmac, "Found oversized packet at slot %d, DMA issue!\n",
  45                                           ring->start);
  46                                 put_page(virt_to_head_page(buf));
  47 +                               bgmac->net_dev->stats.rx_length_errors++;
  48 +                               bgmac->net_dev->stats.rx_errors++;
  49                                 break;
  50                         }
  51
  52 @@ -485,6 +492,7 @@ static int bgmac_dma_rx_read(struct bgma
  53                         if (unlikely(!skb)) {
  54                                 bgmac_err(bgmac, "build_skb failed\n");
  55                                 put_page(virt_to_head_page(buf));
  56 +                               bgmac->net_dev->stats.rx_errors++;
  57                                 break;
  58                         }
  59                         skb_put(skb, BGMAC_RX_FRAME_OFFSET +
  60 @@ -494,6 +502,8 @@ static int bgmac_dma_rx_read(struct bgma
  61
  62                         skb_checksum_none_assert(skb);
  63                         skb->protocol = eth_type_trans(skb, bgmac->net_dev);
  64 +                       bgmac->net_dev->stats.rx_bytes += len;
  65 +                       bgmac->net_dev->stats.rx_packets++;
  66                         napi_gro_receive(&bgmac->napi, skb);
  67                         handled++;
  68                 } while (0);