target/linux/layerscape/patches-5.4/701-net-0101-sdk_dpaa-add-the-get_ts_info-interface-for-ethtool.patch

   1 From 0ade532080c8cc777cd2af78b11040a353b89880 Mon Sep 17 00:00:00 2001
   2 From: Yangbo Lu <yangbo.lu@nxp.com>
   3 Date: Thu, 1 Nov 2018 10:34:52 +0800
   4 Subject: [PATCH] sdk_dpaa: add the get_ts_info interface for ethtool
   5
   6 Added the get_ts_info interface for ethtool to check
   7 the timestamping capability.
   8
   9 Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
  10 ---
  11  .../net/ethernet/freescale/sdk_dpaa/dpaa_ethtool.c | 45 ++++++++++++++++++++++
  12  1 file changed, 45 insertions(+)
  13
  14 --- a/drivers/net/ethernet/freescale/sdk_dpaa/dpaa_ethtool.c
  15 +++ b/drivers/net/ethernet/freescale/sdk_dpaa/dpaa_ethtool.c
  16 @@ -39,6 +39,9 @@
  17  #endif
  18
  19  #include <linux/string.h>
  20 +#include <linux/of_platform.h>
  21 +#include <linux/net_tstamp.h>
  22 +#include <linux/fsl/ptp_qoriq.h>
  23
  24  #include "dpaa_eth.h"
  25  #include "mac.h"                /* struct mac_device */
  26 @@ -519,6 +522,47 @@ static void dpa_get_strings(struct net_d
  27         memcpy(strings, dpa_stats_global, size);
  28  }
  29
  30 +static int dpaa_get_ts_info(struct net_device *net_dev,
  31 +                           struct ethtool_ts_info *info)
  32 +{
  33 +       struct dpa_priv_s *priv = netdev_priv(net_dev);
  34 +       struct device *dev = priv->mac_dev->dev;
  35 +       struct device_node *mac_node = dev->of_node;
  36 +       struct device_node *fman_node = NULL, *ptp_node = NULL;
  37 +       struct platform_device *ptp_dev = NULL;
  38 +       struct qoriq_ptp *ptp = NULL;
  39 +
  40 +       info->phc_index = -1;
  41 +
  42 +       fman_node = of_get_parent(mac_node);
  43 +       if (fman_node)
  44 +               ptp_node = of_parse_phandle(fman_node, "ptimer-handle", 0);
  45 +
  46 +       if (ptp_node)
  47 +               ptp_dev = of_find_device_by_node(ptp_node);
  48 +
  49 +       if (ptp_dev)
  50 +               ptp = platform_get_drvdata(ptp_dev);
  51 +
  52 +       if (ptp)
  53 +               info->phc_index = ptp->phc_index;
  54 +
  55 +#ifdef CONFIG_FSL_DPAA_TS
  56 +       info->so_timestamping = SOF_TIMESTAMPING_TX_HARDWARE |
  57 +                               SOF_TIMESTAMPING_RX_HARDWARE |
  58 +                               SOF_TIMESTAMPING_RAW_HARDWARE;
  59 +       info->tx_types = (1 << HWTSTAMP_TX_OFF) |
  60 +                        (1 << HWTSTAMP_TX_ON);
  61 +       info->rx_filters = (1 << HWTSTAMP_FILTER_NONE) |
  62 +                          (1 << HWTSTAMP_FILTER_ALL);
  63 +#else
  64 +       info->so_timestamping = SOF_TIMESTAMPING_RX_SOFTWARE |
  65 +                               SOF_TIMESTAMPING_SOFTWARE;
  66 +#endif
  67 +
  68 +       return 0;
  69 +}
  70 +
  71  const struct ethtool_ops dpa_ethtool_ops = {
  72         .get_link_ksettings = dpa_get_ksettings,
  73         .set_link_ksettings = dpa_set_ksettings,
  74 @@ -539,4 +583,5 @@ const struct ethtool_ops dpa_ethtool_ops
  75         .get_wol = dpa_get_wol,
  76         .set_wol = dpa_set_wol,
  77  #endif
  78 +       .get_ts_info = dpaa_get_ts_info,
  79  };