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path: root/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch-ethtool.c
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Diffstat (limited to 'drivers/net/ethernet/freescale/dpaa2/dpaa2-switch-ethtool.c')
-rw-r--r--drivers/net/ethernet/freescale/dpaa2/dpaa2-switch-ethtool.c211
1 files changed, 211 insertions, 0 deletions
diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch-ethtool.c b/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch-ethtool.c
new file mode 100644
index 000000000..720c9230c
--- /dev/null
+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch-ethtool.c
@@ -0,0 +1,211 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * DPAA2 Ethernet Switch ethtool support
+ *
+ * Copyright 2014-2016 Freescale Semiconductor Inc.
+ * Copyright 2017-2018 NXP
+ *
+ */
+
+#include <linux/ethtool.h>
+
+#include "dpaa2-switch.h"
+
+static struct {
+ enum dpsw_counter id;
+ char name[ETH_GSTRING_LEN];
+} dpaa2_switch_ethtool_counters[] = {
+ {DPSW_CNT_ING_FRAME, "[hw] rx frames"},
+ {DPSW_CNT_ING_BYTE, "[hw] rx bytes"},
+ {DPSW_CNT_ING_FLTR_FRAME, "[hw] rx filtered frames"},
+ {DPSW_CNT_ING_FRAME_DISCARD, "[hw] rx discarded frames"},
+ {DPSW_CNT_ING_BCAST_FRAME, "[hw] rx bcast frames"},
+ {DPSW_CNT_ING_BCAST_BYTES, "[hw] rx bcast bytes"},
+ {DPSW_CNT_ING_MCAST_FRAME, "[hw] rx mcast frames"},
+ {DPSW_CNT_ING_MCAST_BYTE, "[hw] rx mcast bytes"},
+ {DPSW_CNT_EGR_FRAME, "[hw] tx frames"},
+ {DPSW_CNT_EGR_BYTE, "[hw] tx bytes"},
+ {DPSW_CNT_EGR_FRAME_DISCARD, "[hw] tx discarded frames"},
+ {DPSW_CNT_ING_NO_BUFF_DISCARD, "[hw] rx nobuffer discards"},
+};
+
+#define DPAA2_SWITCH_NUM_COUNTERS ARRAY_SIZE(dpaa2_switch_ethtool_counters)
+
+static void dpaa2_switch_get_drvinfo(struct net_device *netdev,
+ struct ethtool_drvinfo *drvinfo)
+{
+ struct ethsw_port_priv *port_priv = netdev_priv(netdev);
+ u16 version_major, version_minor;
+ int err;
+
+ strscpy(drvinfo->driver, KBUILD_MODNAME, sizeof(drvinfo->driver));
+
+ err = dpsw_get_api_version(port_priv->ethsw_data->mc_io, 0,
+ &version_major,
+ &version_minor);
+ if (err)
+ strscpy(drvinfo->fw_version, "N/A",
+ sizeof(drvinfo->fw_version));
+ else
+ snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
+ "%u.%u", version_major, version_minor);
+
+ strscpy(drvinfo->bus_info, dev_name(netdev->dev.parent->parent),
+ sizeof(drvinfo->bus_info));
+}
+
+static int
+dpaa2_switch_get_link_ksettings(struct net_device *netdev,
+ struct ethtool_link_ksettings *link_ksettings)
+{
+ struct ethsw_port_priv *port_priv = netdev_priv(netdev);
+ struct dpsw_link_state state = {0};
+ int err = 0;
+
+ if (dpaa2_switch_port_is_type_phy(port_priv))
+ return phylink_ethtool_ksettings_get(port_priv->mac->phylink,
+ link_ksettings);
+
+ err = dpsw_if_get_link_state(port_priv->ethsw_data->mc_io, 0,
+ port_priv->ethsw_data->dpsw_handle,
+ port_priv->idx,
+ &state);
+ if (err) {
+ netdev_err(netdev, "ERROR %d getting link state\n", err);
+ goto out;
+ }
+
+ /* At the moment, we have no way of interrogating the DPMAC
+ * from the DPSW side or there may not exist a DPMAC at all.
+ * Report only autoneg state, duplexity and speed.
+ */
+ if (state.options & DPSW_LINK_OPT_AUTONEG)
+ link_ksettings->base.autoneg = AUTONEG_ENABLE;
+ if (!(state.options & DPSW_LINK_OPT_HALF_DUPLEX))
+ link_ksettings->base.duplex = DUPLEX_FULL;
+ link_ksettings->base.speed = state.rate;
+
+out:
+ return err;
+}
+
+static int
+dpaa2_switch_set_link_ksettings(struct net_device *netdev,
+ const struct ethtool_link_ksettings *link_ksettings)
+{
+ struct ethsw_port_priv *port_priv = netdev_priv(netdev);
+ struct ethsw_core *ethsw = port_priv->ethsw_data;
+ struct dpsw_link_cfg cfg = {0};
+ bool if_running;
+ int err = 0, ret;
+
+ if (dpaa2_switch_port_is_type_phy(port_priv))
+ return phylink_ethtool_ksettings_set(port_priv->mac->phylink,
+ link_ksettings);
+
+ /* Interface needs to be down to change link settings */
+ if_running = netif_running(netdev);
+ if (if_running) {
+ err = dpsw_if_disable(ethsw->mc_io, 0,
+ ethsw->dpsw_handle,
+ port_priv->idx);
+ if (err) {
+ netdev_err(netdev, "dpsw_if_disable err %d\n", err);
+ return err;
+ }
+ }
+
+ cfg.rate = link_ksettings->base.speed;
+ if (link_ksettings->base.autoneg == AUTONEG_ENABLE)
+ cfg.options |= DPSW_LINK_OPT_AUTONEG;
+ else
+ cfg.options &= ~DPSW_LINK_OPT_AUTONEG;
+ if (link_ksettings->base.duplex == DUPLEX_HALF)
+ cfg.options |= DPSW_LINK_OPT_HALF_DUPLEX;
+ else
+ cfg.options &= ~DPSW_LINK_OPT_HALF_DUPLEX;
+
+ err = dpsw_if_set_link_cfg(port_priv->ethsw_data->mc_io, 0,
+ port_priv->ethsw_data->dpsw_handle,
+ port_priv->idx,
+ &cfg);
+
+ if (if_running) {
+ ret = dpsw_if_enable(ethsw->mc_io, 0,
+ ethsw->dpsw_handle,
+ port_priv->idx);
+ if (ret) {
+ netdev_err(netdev, "dpsw_if_enable err %d\n", ret);
+ return ret;
+ }
+ }
+ return err;
+}
+
+static int
+dpaa2_switch_ethtool_get_sset_count(struct net_device *netdev, int sset)
+{
+ struct ethsw_port_priv *port_priv = netdev_priv(netdev);
+ int num_ss_stats = DPAA2_SWITCH_NUM_COUNTERS;
+
+ switch (sset) {
+ case ETH_SS_STATS:
+ if (port_priv->mac)
+ num_ss_stats += dpaa2_mac_get_sset_count();
+ return num_ss_stats;
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+static void dpaa2_switch_ethtool_get_strings(struct net_device *netdev,
+ u32 stringset, u8 *data)
+{
+ struct ethsw_port_priv *port_priv = netdev_priv(netdev);
+ u8 *p = data;
+ int i;
+
+ switch (stringset) {
+ case ETH_SS_STATS:
+ for (i = 0; i < DPAA2_SWITCH_NUM_COUNTERS; i++) {
+ memcpy(p, dpaa2_switch_ethtool_counters[i].name,
+ ETH_GSTRING_LEN);
+ p += ETH_GSTRING_LEN;
+ }
+ if (port_priv->mac)
+ dpaa2_mac_get_strings(p);
+ break;
+ }
+}
+
+static void dpaa2_switch_ethtool_get_stats(struct net_device *netdev,
+ struct ethtool_stats *stats,
+ u64 *data)
+{
+ struct ethsw_port_priv *port_priv = netdev_priv(netdev);
+ int i, err;
+
+ for (i = 0; i < DPAA2_SWITCH_NUM_COUNTERS; i++) {
+ err = dpsw_if_get_counter(port_priv->ethsw_data->mc_io, 0,
+ port_priv->ethsw_data->dpsw_handle,
+ port_priv->idx,
+ dpaa2_switch_ethtool_counters[i].id,
+ &data[i]);
+ if (err)
+ netdev_err(netdev, "dpsw_if_get_counter[%s] err %d\n",
+ dpaa2_switch_ethtool_counters[i].name, err);
+ }
+
+ if (port_priv->mac)
+ dpaa2_mac_get_ethtool_stats(port_priv->mac, data + i);
+}
+
+const struct ethtool_ops dpaa2_switch_port_ethtool_ops = {
+ .get_drvinfo = dpaa2_switch_get_drvinfo,
+ .get_link = ethtool_op_get_link,
+ .get_link_ksettings = dpaa2_switch_get_link_ksettings,
+ .set_link_ksettings = dpaa2_switch_set_link_ksettings,
+ .get_strings = dpaa2_switch_ethtool_get_strings,
+ .get_ethtool_stats = dpaa2_switch_ethtool_get_stats,
+ .get_sset_count = dpaa2_switch_ethtool_get_sset_count,
+};