target/linux/layerscape/patches-5.4/701-net-0033-sdk_dpaa-adapt-to-the-new-API-for-MTU-changes.patch

   1 From 828ec34f1fade88f1e751b7000959aaddfe44e5c Mon Sep 17 00:00:00 2001
   2 From: Camelia Groza <camelia.groza@nxp.com>
   3 Date: Thu, 21 Sep 2017 10:50:57 +0300
   4 Subject: [PATCH] sdk_dpaa: adapt to the new API for MTU changes
   5
   6 Signed-off-by: Camelia Groza <camelia.groza@nxp.com>
   7 ---
   8  drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth.c | 14 +++++++++++-
   9  .../ethernet/freescale/sdk_dpaa/dpaa_eth_common.c  | 25 ----------------------
  10  .../ethernet/freescale/sdk_dpaa/dpaa_eth_common.h  |  1 -
  11  3 files changed, 13 insertions(+), 27 deletions(-)
  12
  13 --- a/drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth.c
  14 +++ b/drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth.c
  15 @@ -681,7 +681,6 @@ static const struct net_device_ops dpa_p
  16  #ifdef CONFIG_FSL_DPAA_ETH_USE_NDO_SELECT_QUEUE
  17         .ndo_select_queue = dpa_select_queue,
  18  #endif
  19 -       .ndo_change_mtu = dpa_change_mtu,
  20         .ndo_set_rx_mode = dpa_set_rx_mode,
  21         .ndo_init = dpa_ndo_init,
  22         .ndo_set_features = dpa_set_features,
  23 @@ -758,6 +757,19 @@ static int dpa_private_netdev_init(struc
  24         net_dev->mem_start = priv->mac_dev->res->start;
  25         net_dev->mem_end = priv->mac_dev->res->end;
  26
  27 +       /* Configure the maximum MTU according to the FMan's MAXFRM */
  28 +       net_dev->min_mtu = ETH_MIN_MTU;
  29 +       net_dev->max_mtu = dpa_get_max_mtu();
  30 +
  31 +#ifndef CONFIG_PPC
  32 +       /* Due to the A010022 FMan errata, we can not use contig frames larger
  33 +        * than 4K, nor S/G frames. We need to prevent the user from setting a
  34 +        * large MTU.
  35 +        */
  36 +       if (unlikely(dpaa_errata_a010022))
  37 +               net_dev->max_mtu = DPA_BP_RAW_SIZE;
  38 +#endif
  39 +
  40         net_dev->hw_features |= (NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
  41                 NETIF_F_LLTX);
  42
  43 --- a/drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth_common.c
  44 +++ b/drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth_common.c
  45 @@ -261,31 +261,6 @@ dpa_get_stats64(struct net_device *net_d
  46  }
  47  EXPORT_SYMBOL(dpa_get_stats64);
  48
  49 -int dpa_change_mtu(struct net_device *net_dev, int new_mtu)
  50 -{
  51 -       int max_mtu = dpa_get_max_mtu();
  52 -
  53 -#ifndef CONFIG_PPC
  54 -       /* Due to the A010022 FMan errata, we can not use contig frames larger
  55 -        * than 4K, nor S/G frames. We need to prevent the user from setting a
  56 -        * large MTU.
  57 -        */
  58 -       if (unlikely(dpaa_errata_a010022))
  59 -               max_mtu = DPA_BP_RAW_SIZE;
  60 -#endif
  61 -
  62 -       /* Make sure we don't exceed the Ethernet controller's MAXFRM */
  63 -       if (new_mtu < 68 || new_mtu > max_mtu) {
  64 -               netdev_err(net_dev, "Invalid L3 mtu %d (must be between %d and %d).\n",
  65 -                               new_mtu, 68, max_mtu);
  66 -               return -EINVAL;
  67 -       }
  68 -       net_dev->mtu = new_mtu;
  69 -
  70 -       return 0;
  71 -}
  72 -EXPORT_SYMBOL(dpa_change_mtu);
  73 -
  74  /* .ndo_init callback */
  75  int dpa_ndo_init(struct net_device *net_dev)
  76  {
  77 --- a/drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth_common.h
  78 +++ b/drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth_common.h
  79 @@ -143,7 +143,6 @@ void __cold dpa_timeout(struct net_devic
  80  void __cold
  81  dpa_get_stats64(struct net_device *net_dev,
  82                 struct rtnl_link_stats64 *stats);
  83 -int dpa_change_mtu(struct net_device *net_dev, int new_mtu);
  84  int dpa_ndo_init(struct net_device *net_dev);
  85  int dpa_set_features(struct net_device *dev, netdev_features_t features);
  86  netdev_features_t dpa_fix_features(struct net_device *dev,