layerscape: add patches-5.4
[openwrt/staging/wigyori.git] / target / linux / layerscape / patches-5.4 / 701-net-0181-staging-dpaa2-evb-Improve-ethtool-support.patch
diff --git a/target/linux/layerscape/patches-5.4/701-net-0181-staging-dpaa2-evb-Improve-ethtool-support.patch b/target/linux/layerscape/patches-5.4/701-net-0181-staging-dpaa2-evb-Improve-ethtool-support.patch
new file mode 100644 (file)
index 0000000..5a566ee
--- /dev/null
@@ -0,0 +1,153 @@
+From b505f9a736c3850aa1dfefd7a803d797c2233aab Mon Sep 17 00:00:00 2001
+From: Razvan Stefanescu <razvan.stefanescu@nxp.com>
+Date: Thu, 13 Apr 2017 13:10:34 +0300
+Subject: [PATCH] staging: dpaa2-evb: Improve ethtool support
+
+Improve ethtool support by adding ops for:
+- driver info
+- link status
+- auto-negotiation setting and result
+- speed setting and result
+
+Signed-off-by: Razvan Stefanescu <razvan.stefanescu@nxp.com>
+---
+ drivers/staging/fsl-dpaa2/evb/evb.c | 114 ++++++++++++++++++++++++++++++++++++
+ 1 file changed, 114 insertions(+)
+
+--- a/drivers/staging/fsl-dpaa2/evb/evb.c
++++ b/drivers/staging/fsl-dpaa2/evb/evb.c
+@@ -43,6 +43,8 @@
+ #include "dpdmux.h"
+ #include "dpdmux-cmd.h"
++static const char evb_drv_version[] = "0.1";
++
+ /* Minimal supported DPDMUX version */
+ #define DPDMUX_MIN_VER_MAJOR                  6
+ #define DPDMUX_MIN_VER_MINOR                  0
+@@ -860,6 +862,114 @@ static const struct net_device_ops evb_p
+       .ndo_change_mtu         = &evb_change_mtu,
+ };
++static void evb_get_drvinfo(struct net_device *netdev,
++                          struct ethtool_drvinfo *drvinfo)
++{
++      struct evb_port_priv *port_priv = netdev_priv(netdev);
++      u16 version_major, version_minor;
++      int err;
++
++      strlcpy(drvinfo->driver, KBUILD_MODNAME, sizeof(drvinfo->driver));
++      strlcpy(drvinfo->version, evb_drv_version, sizeof(drvinfo->version));
++
++      err = dpdmux_get_api_version(port_priv->evb_priv->mc_io, 0,
++                                   &version_major,
++                                   &version_minor);
++      if (err)
++              strlcpy(drvinfo->fw_version, "N/A",
++                      sizeof(drvinfo->fw_version));
++      else
++              snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
++                       "%u.%u", version_major, version_minor);
++
++      strlcpy(drvinfo->bus_info, dev_name(netdev->dev.parent->parent),
++              sizeof(drvinfo->bus_info));
++}
++
++static int evb_get_link_ksettings(struct net_device *netdev,
++                                struct ethtool_link_ksettings *link_settings)
++{
++      struct evb_port_priv *port_priv = netdev_priv(netdev);
++      struct dpdmux_link_state state = {0};
++      int err = 0;
++
++      err = dpdmux_if_get_link_state(port_priv->evb_priv->mc_io, 0,
++                                     port_priv->evb_priv->mux_handle,
++                                     port_priv->port_index,
++                                     &state);
++      if (err) {
++              netdev_err(netdev, "ERROR %d getting link state", err);
++              goto out;
++      }
++
++      /* At the moment, we have no way of interrogating the DPMAC
++       * from the DPDMUX side or there may not exist a DPMAC at all.
++       * Report only autoneg state, duplexity and speed.
++       */
++      if (state.options & DPDMUX_LINK_OPT_AUTONEG)
++              link_settings->base.autoneg = AUTONEG_ENABLE;
++      if (!(state.options & DPDMUX_LINK_OPT_HALF_DUPLEX))
++              link_settings->base.duplex = DUPLEX_FULL;
++      link_settings->base.speed = state.rate;
++
++out:
++      return err;
++}
++
++static int evb_set_link_ksettings(struct net_device *netdev,
++                                const struct ethtool_link_ksettings *link_settings)
++{
++      struct evb_port_priv *port_priv = netdev_priv(netdev);
++      struct dpdmux_link_state state = {0};
++      struct dpdmux_link_cfg cfg = {0};
++      int err = 0;
++
++      netdev_dbg(netdev, "Setting link parameters...");
++
++      err = dpdmux_if_get_link_state(port_priv->evb_priv->mc_io, 0,
++                                     port_priv->evb_priv->mux_handle,
++                                     port_priv->port_index,
++                                     &state);
++      if (err) {
++              netdev_err(netdev, "ERROR %d getting link state", err);
++              goto out;
++      }
++
++      /* Due to a temporary MC limitation, the DPDMUX port must be down
++       * in order to be able to change link settings. Taking steps to let
++       * the user know that.
++       */
++      if (netif_running(netdev)) {
++              netdev_info(netdev,
++                          "Sorry, interface must be brought down first.\n");
++              return -EACCES;
++      }
++
++      cfg.options = state.options;
++      cfg.rate = link_settings->base.speed;
++      if (link_settings->base.autoneg == AUTONEG_ENABLE)
++              cfg.options |= DPDMUX_LINK_OPT_AUTONEG;
++      else
++              cfg.options &= ~DPDMUX_LINK_OPT_AUTONEG;
++      if (link_settings->base.duplex == DUPLEX_HALF)
++              cfg.options |= DPDMUX_LINK_OPT_HALF_DUPLEX;
++      else
++              cfg.options &= ~DPDMUX_LINK_OPT_HALF_DUPLEX;
++
++      err = dpdmux_if_set_link_cfg(port_priv->evb_priv->mc_io, 0,
++                                   port_priv->evb_priv->mux_handle,
++                                   port_priv->port_index,
++                                   &cfg);
++      if (err)
++              /* ethtool will be loud enough if we return an error; no point
++               * in putting our own error message on the console by default
++               */
++              netdev_dbg(netdev, "ERROR %d setting link cfg", err);
++
++out:
++      return err;
++}
++
+ static struct {
+       enum dpdmux_counter_type id;
+       char name[ETH_GSTRING_LEN];
+@@ -923,6 +1033,10 @@ static void evb_ethtool_get_stats(struct
+ }
+ static const struct ethtool_ops evb_port_ethtool_ops = {
++      .get_drvinfo            = &evb_get_drvinfo,
++      .get_link               = &ethtool_op_get_link,
++      .get_link_ksettings     = &evb_get_link_ksettings,
++      .set_link_ksettings     = &evb_set_link_ksettings,
+       .get_strings            = &evb_ethtool_get_strings,
+       .get_ethtool_stats      = &evb_ethtool_get_stats,
+       .get_sset_count         = &evb_ethtool_get_sset_count,