Adding upstream version 5.10.209.upstream/5.10.209

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 799 insertions, 0 deletions

diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-ethtool.c b/drivers/net/ethernet/freescale/dpaa2/dpaa2-ethtool.c
new file mode 100644
index 000000000..f981a523e
--- /dev/null
+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-ethtool.c
@@ -0,0 +1,799 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
+/* Copyright 2014-2016 Freescale Semiconductor Inc.
+ * Copyright 2016 NXP
+ * Copyright 2020 NXP
+ */
+
+#include <linux/net_tstamp.h>
+#include <linux/nospec.h>
+
+#include "dpni.h"	/* DPNI_LINK_OPT_* */
+#include "dpaa2-eth.h"
+
+/* To be kept in sync with DPNI statistics */
+static char dpaa2_ethtool_stats[][ETH_GSTRING_LEN] = {
+	"[hw] rx frames",
+	"[hw] rx bytes",
+	"[hw] rx mcast frames",
+	"[hw] rx mcast bytes",
+	"[hw] rx bcast frames",
+	"[hw] rx bcast bytes",
+	"[hw] tx frames",
+	"[hw] tx bytes",
+	"[hw] tx mcast frames",
+	"[hw] tx mcast bytes",
+	"[hw] tx bcast frames",
+	"[hw] tx bcast bytes",
+	"[hw] rx filtered frames",
+	"[hw] rx discarded frames",
+	"[hw] rx nobuffer discards",
+	"[hw] tx discarded frames",
+	"[hw] tx confirmed frames",
+	"[hw] tx dequeued bytes",
+	"[hw] tx dequeued frames",
+	"[hw] tx rejected bytes",
+	"[hw] tx rejected frames",
+	"[hw] tx pending frames",
+};
+
+#define DPAA2_ETH_NUM_STATS	ARRAY_SIZE(dpaa2_ethtool_stats)
+
+static char dpaa2_ethtool_extras[][ETH_GSTRING_LEN] = {
+	/* per-cpu stats */
+	"[drv] tx conf frames",
+	"[drv] tx conf bytes",
+	"[drv] tx sg frames",
+	"[drv] tx sg bytes",
+	"[drv] rx sg frames",
+	"[drv] rx sg bytes",
+	"[drv] tx converted sg frames",
+	"[drv] tx converted sg bytes",
+	"[drv] enqueue portal busy",
+	/* Channel stats */
+	"[drv] dequeue portal busy",
+	"[drv] channel pull errors",
+	"[drv] cdan",
+	"[drv] xdp drop",
+	"[drv] xdp tx",
+	"[drv] xdp tx errors",
+	"[drv] xdp redirect",
+	/* FQ stats */
+	"[qbman] rx pending frames",
+	"[qbman] rx pending bytes",
+	"[qbman] tx conf pending frames",
+	"[qbman] tx conf pending bytes",
+	"[qbman] buffer count",
+};
+
+#define DPAA2_ETH_NUM_EXTRA_STATS	ARRAY_SIZE(dpaa2_ethtool_extras)
+
+static void dpaa2_eth_get_drvinfo(struct net_device *net_dev,
+				  struct ethtool_drvinfo *drvinfo)
+{
+	struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
+
+	strlcpy(drvinfo->driver, KBUILD_MODNAME, sizeof(drvinfo->driver));
+
+	snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
+		 "%u.%u", priv->dpni_ver_major, priv->dpni_ver_minor);
+
+	strlcpy(drvinfo->bus_info, dev_name(net_dev->dev.parent->parent),
+		sizeof(drvinfo->bus_info));
+}
+
+static int dpaa2_eth_nway_reset(struct net_device *net_dev)
+{
+	struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
+
+	if (priv->mac)
+		return phylink_ethtool_nway_reset(priv->mac->phylink);
+
+	return -EOPNOTSUPP;
+}
+
+static int
+dpaa2_eth_get_link_ksettings(struct net_device *net_dev,
+			     struct ethtool_link_ksettings *link_settings)
+{
+	struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
+
+	if (priv->mac)
+		return phylink_ethtool_ksettings_get(priv->mac->phylink,
+						     link_settings);
+
+	link_settings->base.autoneg = AUTONEG_DISABLE;
+	if (!(priv->link_state.options & DPNI_LINK_OPT_HALF_DUPLEX))
+		link_settings->base.duplex = DUPLEX_FULL;
+	link_settings->base.speed = priv->link_state.rate;
+
+	return 0;
+}
+
+static int
+dpaa2_eth_set_link_ksettings(struct net_device *net_dev,
+			     const struct ethtool_link_ksettings *link_settings)
+{
+	struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
+
+	if (!priv->mac)
+		return -ENOTSUPP;
+
+	return phylink_ethtool_ksettings_set(priv->mac->phylink, link_settings);
+}
+
+static void dpaa2_eth_get_pauseparam(struct net_device *net_dev,
+				     struct ethtool_pauseparam *pause)
+{
+	struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
+	u64 link_options = priv->link_state.options;
+
+	if (priv->mac) {
+		phylink_ethtool_get_pauseparam(priv->mac->phylink, pause);
+		return;
+	}
+
+	pause->rx_pause = dpaa2_eth_rx_pause_enabled(link_options);
+	pause->tx_pause = dpaa2_eth_tx_pause_enabled(link_options);
+	pause->autoneg = AUTONEG_DISABLE;
+}
+
+static int dpaa2_eth_set_pauseparam(struct net_device *net_dev,
+				    struct ethtool_pauseparam *pause)
+{
+	struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
+	struct dpni_link_cfg cfg = {0};
+	int err;
+
+	if (!dpaa2_eth_has_pause_support(priv)) {
+		netdev_info(net_dev, "No pause frame support for DPNI version < %d.%d\n",
+			    DPNI_PAUSE_VER_MAJOR, DPNI_PAUSE_VER_MINOR);
+		return -EOPNOTSUPP;
+	}
+
+	if (priv->mac)
+		return phylink_ethtool_set_pauseparam(priv->mac->phylink,
+						      pause);
+	if (pause->autoneg)
+		return -EOPNOTSUPP;
+
+	cfg.rate = priv->link_state.rate;
+	cfg.options = priv->link_state.options;
+	if (pause->rx_pause)
+		cfg.options |= DPNI_LINK_OPT_PAUSE;
+	else
+		cfg.options &= ~DPNI_LINK_OPT_PAUSE;
+	if (!!pause->rx_pause ^ !!pause->tx_pause)
+		cfg.options |= DPNI_LINK_OPT_ASYM_PAUSE;
+	else
+		cfg.options &= ~DPNI_LINK_OPT_ASYM_PAUSE;
+
+	if (cfg.options == priv->link_state.options)
+		return 0;
+
+	err = dpni_set_link_cfg(priv->mc_io, 0, priv->mc_token, &cfg);
+	if (err) {
+		netdev_err(net_dev, "dpni_set_link_state failed\n");
+		return err;
+	}
+
+	priv->link_state.options = cfg.options;
+
+	return 0;
+}
+
+static void dpaa2_eth_get_strings(struct net_device *netdev, u32 stringset,
+				  u8 *data)
+{
+	struct dpaa2_eth_priv *priv = netdev_priv(netdev);
+	u8 *p = data;
+	int i;
+
+	switch (stringset) {
+	case ETH_SS_STATS:
+		for (i = 0; i < DPAA2_ETH_NUM_STATS; i++) {
+			strlcpy(p, dpaa2_ethtool_stats[i], ETH_GSTRING_LEN);
+			p += ETH_GSTRING_LEN;
+		}
+		for (i = 0; i < DPAA2_ETH_NUM_EXTRA_STATS; i++) {
+			strlcpy(p, dpaa2_ethtool_extras[i], ETH_GSTRING_LEN);
+			p += ETH_GSTRING_LEN;
+		}
+		if (priv->mac)
+			dpaa2_mac_get_strings(p);
+		break;
+	}
+}
+
+static int dpaa2_eth_get_sset_count(struct net_device *net_dev, int sset)
+{
+	int num_ss_stats = DPAA2_ETH_NUM_STATS + DPAA2_ETH_NUM_EXTRA_STATS;
+	struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
+
+	switch (sset) {
+	case ETH_SS_STATS: /* ethtool_get_stats(), ethtool_get_drvinfo() */
+		if (priv->mac)
+			num_ss_stats += dpaa2_mac_get_sset_count();
+		return num_ss_stats;
+	default:
+		return -EOPNOTSUPP;
+	}
+}
+
+/** Fill in hardware counters, as returned by MC.
+ */
+static void dpaa2_eth_get_ethtool_stats(struct net_device *net_dev,
+					struct ethtool_stats *stats,
+					u64 *data)
+{
+	int i = 0;
+	int j, k, err;
+	int num_cnt;
+	union dpni_statistics dpni_stats;
+	u32 fcnt, bcnt;
+	u32 fcnt_rx_total = 0, fcnt_tx_total = 0;
+	u32 bcnt_rx_total = 0, bcnt_tx_total = 0;
+	u32 buf_cnt;
+	struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
+	struct dpaa2_eth_drv_stats *extras;
+	struct dpaa2_eth_ch_stats *ch_stats;
+	int dpni_stats_page_size[DPNI_STATISTICS_CNT] = {
+		sizeof(dpni_stats.page_0),
+		sizeof(dpni_stats.page_1),
+		sizeof(dpni_stats.page_2),
+		sizeof(dpni_stats.page_3),
+		sizeof(dpni_stats.page_4),
+		sizeof(dpni_stats.page_5),
+		sizeof(dpni_stats.page_6),
+	};
+
+	memset(data, 0,
+	       sizeof(u64) * (DPAA2_ETH_NUM_STATS + DPAA2_ETH_NUM_EXTRA_STATS));
+
+	/* Print standard counters, from DPNI statistics */
+	for (j = 0; j <= 6; j++) {
+		/* We're not interested in pages 4 & 5 for now */
+		if (j == 4 || j == 5)
+			continue;
+		err = dpni_get_statistics(priv->mc_io, 0, priv->mc_token,
+					  j, &dpni_stats);
+		if (err == -EINVAL)
+			/* Older firmware versions don't support all pages */
+			memset(&dpni_stats, 0, sizeof(dpni_stats));
+		else if (err)
+			netdev_warn(net_dev, "dpni_get_stats(%d) failed\n", j);
+
+		num_cnt = dpni_stats_page_size[j] / sizeof(u64);
+		for (k = 0; k < num_cnt; k++)
+			*(data + i++) = dpni_stats.raw.counter[k];
+	}
+
+	/* Print per-cpu extra stats */
+	for_each_online_cpu(k) {
+		extras = per_cpu_ptr(priv->percpu_extras, k);
+		for (j = 0; j < sizeof(*extras) / sizeof(__u64); j++)
+			*((__u64 *)data + i + j) += *((__u64 *)extras + j);
+	}
+	i += j;
+
+	/* Per-channel stats */
+	for (k = 0; k < priv->num_channels; k++) {
+		ch_stats = &priv->channel[k]->stats;
+		for (j = 0; j < sizeof(*ch_stats) / sizeof(__u64) - 1; j++)
+			*((__u64 *)data + i + j) += *((__u64 *)ch_stats + j);
+	}
+	i += j;
+
+	for (j = 0; j < priv->num_fqs; j++) {
+		/* Print FQ instantaneous counts */
+		err = dpaa2_io_query_fq_count(NULL, priv->fq[j].fqid,
+					      &fcnt, &bcnt);
+		if (err) {
+			netdev_warn(net_dev, "FQ query error %d", err);
+			return;
+		}
+
+		if (priv->fq[j].type == DPAA2_TX_CONF_FQ) {
+			fcnt_tx_total += fcnt;
+			bcnt_tx_total += bcnt;
+		} else {
+			fcnt_rx_total += fcnt;
+			bcnt_rx_total += bcnt;
+		}
+	}
+
+	*(data + i++) = fcnt_rx_total;
+	*(data + i++) = bcnt_rx_total;
+	*(data + i++) = fcnt_tx_total;
+	*(data + i++) = bcnt_tx_total;
+
+	err = dpaa2_io_query_bp_count(NULL, priv->bpid, &buf_cnt);
+	if (err) {
+		netdev_warn(net_dev, "Buffer count query error %d\n", err);
+		return;
+	}
+	*(data + i++) = buf_cnt;
+
+	if (priv->mac)
+		dpaa2_mac_get_ethtool_stats(priv->mac, data + i);
+}
+
+static int dpaa2_eth_prep_eth_rule(struct ethhdr *eth_value, struct ethhdr *eth_mask,
+				   void *key, void *mask, u64 *fields)
+{
+	int off;
+
+	if (eth_mask->h_proto) {
+		off = dpaa2_eth_cls_fld_off(NET_PROT_ETH, NH_FLD_ETH_TYPE);
+		*(__be16 *)(key + off) = eth_value->h_proto;
+		*(__be16 *)(mask + off) = eth_mask->h_proto;
+		*fields |= DPAA2_ETH_DIST_ETHTYPE;
+	}
+
+	if (!is_zero_ether_addr(eth_mask->h_source)) {
+		off = dpaa2_eth_cls_fld_off(NET_PROT_ETH, NH_FLD_ETH_SA);
+		ether_addr_copy(key + off, eth_value->h_source);
+		ether_addr_copy(mask + off, eth_mask->h_source);
+		*fields |= DPAA2_ETH_DIST_ETHSRC;
+	}
+
+	if (!is_zero_ether_addr(eth_mask->h_dest)) {
+		off = dpaa2_eth_cls_fld_off(NET_PROT_ETH, NH_FLD_ETH_DA);
+		ether_addr_copy(key + off, eth_value->h_dest);
+		ether_addr_copy(mask + off, eth_mask->h_dest);
+		*fields |= DPAA2_ETH_DIST_ETHDST;
+	}
+
+	return 0;
+}
+
+static int dpaa2_eth_prep_uip_rule(struct ethtool_usrip4_spec *uip_value,
+				   struct ethtool_usrip4_spec *uip_mask,
+				   void *key, void *mask, u64 *fields)
+{
+	int off;
+	u32 tmp_value, tmp_mask;
+
+	if (uip_mask->tos || uip_mask->ip_ver)
+		return -EOPNOTSUPP;
+
+	if (uip_mask->ip4src) {
+		off = dpaa2_eth_cls_fld_off(NET_PROT_IP, NH_FLD_IP_SRC);
+		*(__be32 *)(key + off) = uip_value->ip4src;
+		*(__be32 *)(mask + off) = uip_mask->ip4src;
+		*fields |= DPAA2_ETH_DIST_IPSRC;
+	}
+
+	if (uip_mask->ip4dst) {
+		off = dpaa2_eth_cls_fld_off(NET_PROT_IP, NH_FLD_IP_DST);
+		*(__be32 *)(key + off) = uip_value->ip4dst;
+		*(__be32 *)(mask + off) = uip_mask->ip4dst;
+		*fields |= DPAA2_ETH_DIST_IPDST;
+	}
+
+	if (uip_mask->proto) {
+		off = dpaa2_eth_cls_fld_off(NET_PROT_IP, NH_FLD_IP_PROTO);
+		*(u8 *)(key + off) = uip_value->proto;
+		*(u8 *)(mask + off) = uip_mask->proto;
+		*fields |= DPAA2_ETH_DIST_IPPROTO;
+	}
+
+	if (uip_mask->l4_4_bytes) {
+		tmp_value = be32_to_cpu(uip_value->l4_4_bytes);
+		tmp_mask = be32_to_cpu(uip_mask->l4_4_bytes);
+
+		off = dpaa2_eth_cls_fld_off(NET_PROT_UDP, NH_FLD_UDP_PORT_SRC);
+		*(__be16 *)(key + off) = htons(tmp_value >> 16);
+		*(__be16 *)(mask + off) = htons(tmp_mask >> 16);
+		*fields |= DPAA2_ETH_DIST_L4SRC;
+
+		off = dpaa2_eth_cls_fld_off(NET_PROT_UDP, NH_FLD_UDP_PORT_DST);
+		*(__be16 *)(key + off) = htons(tmp_value & 0xFFFF);
+		*(__be16 *)(mask + off) = htons(tmp_mask & 0xFFFF);
+		*fields |= DPAA2_ETH_DIST_L4DST;
+	}
+
+	/* Only apply the rule for IPv4 frames */
+	off = dpaa2_eth_cls_fld_off(NET_PROT_ETH, NH_FLD_ETH_TYPE);
+	*(__be16 *)(key + off) = htons(ETH_P_IP);
+	*(__be16 *)(mask + off) = htons(0xFFFF);
+	*fields |= DPAA2_ETH_DIST_ETHTYPE;
+
+	return 0;
+}
+
+static int dpaa2_eth_prep_l4_rule(struct ethtool_tcpip4_spec *l4_value,
+				  struct ethtool_tcpip4_spec *l4_mask,
+				  void *key, void *mask, u8 l4_proto, u64 *fields)
+{
+	int off;
+
+	if (l4_mask->tos)
+		return -EOPNOTSUPP;
+
+	if (l4_mask->ip4src) {
+		off = dpaa2_eth_cls_fld_off(NET_PROT_IP, NH_FLD_IP_SRC);
+		*(__be32 *)(key + off) = l4_value->ip4src;
+		*(__be32 *)(mask + off) = l4_mask->ip4src;
+		*fields |= DPAA2_ETH_DIST_IPSRC;
+	}
+
+	if (l4_mask->ip4dst) {
+		off = dpaa2_eth_cls_fld_off(NET_PROT_IP, NH_FLD_IP_DST);
+		*(__be32 *)(key + off) = l4_value->ip4dst;
+		*(__be32 *)(mask + off) = l4_mask->ip4dst;
+		*fields |= DPAA2_ETH_DIST_IPDST;
+	}
+
+	if (l4_mask->psrc) {
+		off = dpaa2_eth_cls_fld_off(NET_PROT_UDP, NH_FLD_UDP_PORT_SRC);
+		*(__be16 *)(key + off) = l4_value->psrc;
+		*(__be16 *)(mask + off) = l4_mask->psrc;
+		*fields |= DPAA2_ETH_DIST_L4SRC;
+	}
+
+	if (l4_mask->pdst) {
+		off = dpaa2_eth_cls_fld_off(NET_PROT_UDP, NH_FLD_UDP_PORT_DST);
+		*(__be16 *)(key + off) = l4_value->pdst;
+		*(__be16 *)(mask + off) = l4_mask->pdst;
+		*fields |= DPAA2_ETH_DIST_L4DST;
+	}
+
+	/* Only apply the rule for IPv4 frames with the specified L4 proto */
+	off = dpaa2_eth_cls_fld_off(NET_PROT_ETH, NH_FLD_ETH_TYPE);
+	*(__be16 *)(key + off) = htons(ETH_P_IP);
+	*(__be16 *)(mask + off) = htons(0xFFFF);
+	*fields |= DPAA2_ETH_DIST_ETHTYPE;
+
+	off = dpaa2_eth_cls_fld_off(NET_PROT_IP, NH_FLD_IP_PROTO);
+	*(u8 *)(key + off) = l4_proto;
+	*(u8 *)(mask + off) = 0xFF;
+	*fields |= DPAA2_ETH_DIST_IPPROTO;
+
+	return 0;
+}
+
+static int dpaa2_eth_prep_ext_rule(struct ethtool_flow_ext *ext_value,
+				   struct ethtool_flow_ext *ext_mask,
+				   void *key, void *mask, u64 *fields)
+{
+	int off;
+
+	if (ext_mask->vlan_etype)
+		return -EOPNOTSUPP;
+
+	if (ext_mask->vlan_tci) {
+		off = dpaa2_eth_cls_fld_off(NET_PROT_VLAN, NH_FLD_VLAN_TCI);
+		*(__be16 *)(key + off) = ext_value->vlan_tci;
+		*(__be16 *)(mask + off) = ext_mask->vlan_tci;
+		*fields |= DPAA2_ETH_DIST_VLAN;
+	}
+
+	return 0;
+}
+
+static int dpaa2_eth_prep_mac_ext_rule(struct ethtool_flow_ext *ext_value,
+				       struct ethtool_flow_ext *ext_mask,
+				       void *key, void *mask, u64 *fields)
+{
+	int off;
+
+	if (!is_zero_ether_addr(ext_mask->h_dest)) {
+		off = dpaa2_eth_cls_fld_off(NET_PROT_ETH, NH_FLD_ETH_DA);
+		ether_addr_copy(key + off, ext_value->h_dest);
+		ether_addr_copy(mask + off, ext_mask->h_dest);
+		*fields |= DPAA2_ETH_DIST_ETHDST;
+	}
+
+	return 0;
+}
+
+static int dpaa2_eth_prep_cls_rule(struct ethtool_rx_flow_spec *fs, void *key,
+				   void *mask, u64 *fields)
+{
+	int err;
+
+	switch (fs->flow_type & 0xFF) {
+	case ETHER_FLOW:
+		err = dpaa2_eth_prep_eth_rule(&fs->h_u.ether_spec, &fs->m_u.ether_spec,
+					      key, mask, fields);
+		break;
+	case IP_USER_FLOW:
+		err = dpaa2_eth_prep_uip_rule(&fs->h_u.usr_ip4_spec,
+					      &fs->m_u.usr_ip4_spec, key, mask, fields);
+		break;
+	case TCP_V4_FLOW:
+		err = dpaa2_eth_prep_l4_rule(&fs->h_u.tcp_ip4_spec, &fs->m_u.tcp_ip4_spec,
+					     key, mask, IPPROTO_TCP, fields);
+		break;
+	case UDP_V4_FLOW:
+		err = dpaa2_eth_prep_l4_rule(&fs->h_u.udp_ip4_spec, &fs->m_u.udp_ip4_spec,
+					     key, mask, IPPROTO_UDP, fields);
+		break;
+	case SCTP_V4_FLOW:
+		err = dpaa2_eth_prep_l4_rule(&fs->h_u.sctp_ip4_spec,
+					     &fs->m_u.sctp_ip4_spec, key, mask,
+					     IPPROTO_SCTP, fields);
+		break;
+	default:
+		return -EOPNOTSUPP;
+	}
+
+	if (err)
+		return err;
+
+	if (fs->flow_type & FLOW_EXT) {
+		err = dpaa2_eth_prep_ext_rule(&fs->h_ext, &fs->m_ext, key, mask, fields);
+		if (err)
+			return err;
+	}
+
+	if (fs->flow_type & FLOW_MAC_EXT) {
+		err = dpaa2_eth_prep_mac_ext_rule(&fs->h_ext, &fs->m_ext, key,
+						  mask, fields);
+		if (err)
+			return err;
+	}
+
+	return 0;
+}
+
+static int dpaa2_eth_do_cls_rule(struct net_device *net_dev,
+				 struct ethtool_rx_flow_spec *fs,
+				 bool add)
+{
+	struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
+	struct device *dev = net_dev->dev.parent;
+	struct dpni_rule_cfg rule_cfg = { 0 };
+	struct dpni_fs_action_cfg fs_act = { 0 };
+	dma_addr_t key_iova;
+	u64 fields = 0;
+	void *key_buf;
+	int i, err;
+
+	if (fs->ring_cookie != RX_CLS_FLOW_DISC &&
+	    fs->ring_cookie >= dpaa2_eth_queue_count(priv))
+		return -EINVAL;
+
+	rule_cfg.key_size = dpaa2_eth_cls_key_size(DPAA2_ETH_DIST_ALL);
+
+	/* allocate twice the key size, for the actual key and for mask */
+	key_buf = kzalloc(rule_cfg.key_size * 2, GFP_KERNEL);
+	if (!key_buf)
+		return -ENOMEM;
+
+	/* Fill the key and mask memory areas */
+	err = dpaa2_eth_prep_cls_rule(fs, key_buf, key_buf + rule_cfg.key_size, &fields);
+	if (err)
+		goto free_mem;
+
+	if (!dpaa2_eth_fs_mask_enabled(priv)) {
+		/* Masking allows us to configure a maximal key during init and
+		 * use it for all flow steering rules. Without it, we include
+		 * in the key only the fields actually used, so we need to
+		 * extract the others from the final key buffer.
+		 *
+		 * Program the FS key if needed, or return error if previously
+		 * set key can't be used for the current rule. User needs to
+		 * delete existing rules in this case to allow for the new one.
+		 */
+		if (!priv->rx_cls_fields) {
+			err = dpaa2_eth_set_cls(net_dev, fields);
+			if (err)
+				goto free_mem;
+
+			priv->rx_cls_fields = fields;
+		} else if (priv->rx_cls_fields != fields) {
+			netdev_err(net_dev, "No support for multiple FS keys, need to delete existing rules\n");
+			err = -EOPNOTSUPP;
+			goto free_mem;
+		}
+
+		dpaa2_eth_cls_trim_rule(key_buf, fields);
+		rule_cfg.key_size = dpaa2_eth_cls_key_size(fields);
+	}
+
+	key_iova = dma_map_single(dev, key_buf, rule_cfg.key_size * 2,
+				  DMA_TO_DEVICE);
+	if (dma_mapping_error(dev, key_iova)) {
+		err = -ENOMEM;
+		goto free_mem;
+	}
+
+	rule_cfg.key_iova = key_iova;
+	if (dpaa2_eth_fs_mask_enabled(priv))
+		rule_cfg.mask_iova = key_iova + rule_cfg.key_size;
+
+	if (add) {
+		if (fs->ring_cookie == RX_CLS_FLOW_DISC)
+			fs_act.options |= DPNI_FS_OPT_DISCARD;
+		else
+			fs_act.flow_id = fs->ring_cookie;
+	}
+	for (i = 0; i < dpaa2_eth_tc_count(priv); i++) {
+		if (add)
+			err = dpni_add_fs_entry(priv->mc_io, 0, priv->mc_token,
+						i, fs->location, &rule_cfg,
+						&fs_act);
+		else
+			err = dpni_remove_fs_entry(priv->mc_io, 0,
+						   priv->mc_token, i,
+						   &rule_cfg);
+		if (err || priv->dpni_attrs.options & DPNI_OPT_SHARED_FS)
+			break;
+	}
+
+	dma_unmap_single(dev, key_iova, rule_cfg.key_size * 2, DMA_TO_DEVICE);
+
+free_mem:
+	kfree(key_buf);
+
+	return err;
+}
+
+static int dpaa2_eth_num_cls_rules(struct dpaa2_eth_priv *priv)
+{
+	int i, rules = 0;
+
+	for (i = 0; i < dpaa2_eth_fs_count(priv); i++)
+		if (priv->cls_rules[i].in_use)
+			rules++;
+
+	return rules;
+}
+
+static int dpaa2_eth_update_cls_rule(struct net_device *net_dev,
+				     struct ethtool_rx_flow_spec *new_fs,
+				     unsigned int location)
+{
+	struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
+	struct dpaa2_eth_cls_rule *rule;
+	int err = -EINVAL;
+
+	if (!priv->rx_cls_enabled)
+		return -EOPNOTSUPP;
+
+	if (location >= dpaa2_eth_fs_count(priv))
+		return -EINVAL;
+
+	rule = &priv->cls_rules[location];
+
+	/* If a rule is present at the specified location, delete it. */
+	if (rule->in_use) {
+		err = dpaa2_eth_do_cls_rule(net_dev, &rule->fs, false);
+		if (err)
+			return err;
+
+		rule->in_use = 0;
+
+		if (!dpaa2_eth_fs_mask_enabled(priv) &&
+		    !dpaa2_eth_num_cls_rules(priv))
+			priv->rx_cls_fields = 0;
+	}
+
+	/* If no new entry to add, return here */
+	if (!new_fs)
+		return err;
+
+	err = dpaa2_eth_do_cls_rule(net_dev, new_fs, true);
+	if (err)
+		return err;
+
+	rule->in_use = 1;
+	rule->fs = *new_fs;
+
+	return 0;
+}
+
+static int dpaa2_eth_get_rxnfc(struct net_device *net_dev,
+			       struct ethtool_rxnfc *rxnfc, u32 *rule_locs)
+{
+	struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
+	int max_rules = dpaa2_eth_fs_count(priv);
+	int i, j = 0;
+
+	switch (rxnfc->cmd) {
+	case ETHTOOL_GRXFH:
+		/* we purposely ignore cmd->flow_type for now, because the
+		 * classifier only supports a single set of fields for all
+		 * protocols
+		 */
+		rxnfc->data = priv->rx_hash_fields;
+		break;
+	case ETHTOOL_GRXRINGS:
+		rxnfc->data = dpaa2_eth_queue_count(priv);
+		break;
+	case ETHTOOL_GRXCLSRLCNT:
+		rxnfc->rule_cnt = 0;
+		rxnfc->rule_cnt = dpaa2_eth_num_cls_rules(priv);
+		rxnfc->data = max_rules;
+		break;
+	case ETHTOOL_GRXCLSRULE:
+		if (rxnfc->fs.location >= max_rules)
+			return -EINVAL;
+		rxnfc->fs.location = array_index_nospec(rxnfc->fs.location,
+							max_rules);
+		if (!priv->cls_rules[rxnfc->fs.location].in_use)
+			return -EINVAL;
+		rxnfc->fs = priv->cls_rules[rxnfc->fs.location].fs;
+		break;
+	case ETHTOOL_GRXCLSRLALL:
+		for (i = 0; i < max_rules; i++) {
+			if (!priv->cls_rules[i].in_use)
+				continue;
+			if (j == rxnfc->rule_cnt)
+				return -EMSGSIZE;
+			rule_locs[j++] = i;
+		}
+		rxnfc->rule_cnt = j;
+		rxnfc->data = max_rules;
+		break;
+	default:
+		return -EOPNOTSUPP;
+	}
+
+	return 0;
+}
+
+static int dpaa2_eth_set_rxnfc(struct net_device *net_dev,
+			       struct ethtool_rxnfc *rxnfc)
+{
+	int err = 0;
+
+	switch (rxnfc->cmd) {
+	case ETHTOOL_SRXFH:
+		if ((rxnfc->data & DPAA2_RXH_SUPPORTED) != rxnfc->data)
+			return -EOPNOTSUPP;
+		err = dpaa2_eth_set_hash(net_dev, rxnfc->data);
+		break;
+	case ETHTOOL_SRXCLSRLINS:
+		err = dpaa2_eth_update_cls_rule(net_dev, &rxnfc->fs, rxnfc->fs.location);
+		break;
+	case ETHTOOL_SRXCLSRLDEL:
+		err = dpaa2_eth_update_cls_rule(net_dev, NULL, rxnfc->fs.location);
+		break;
+	default:
+		err = -EOPNOTSUPP;
+	}
+
+	return err;
+}
+
+int dpaa2_phc_index = -1;
+EXPORT_SYMBOL(dpaa2_phc_index);
+
+static int dpaa2_eth_get_ts_info(struct net_device *dev,
+				 struct ethtool_ts_info *info)
+{
+	if (!dpaa2_ptp)
+		return ethtool_op_get_ts_info(dev, info);
+
+	info->so_timestamping = SOF_TIMESTAMPING_TX_HARDWARE |
+				SOF_TIMESTAMPING_RX_HARDWARE |
+				SOF_TIMESTAMPING_RAW_HARDWARE;
+
+	info->phc_index = dpaa2_phc_index;
+
+	info->tx_types = (1 << HWTSTAMP_TX_OFF) |
+			 (1 << HWTSTAMP_TX_ON) |
+			 (1 << HWTSTAMP_TX_ONESTEP_SYNC);
+
+	info->rx_filters = (1 << HWTSTAMP_FILTER_NONE) |
+			   (1 << HWTSTAMP_FILTER_ALL);
+	return 0;
+}
+
+const struct ethtool_ops dpaa2_ethtool_ops = {
+	.get_drvinfo = dpaa2_eth_get_drvinfo,
+	.nway_reset = dpaa2_eth_nway_reset,
+	.get_link = ethtool_op_get_link,
+	.get_link_ksettings = dpaa2_eth_get_link_ksettings,
+	.set_link_ksettings = dpaa2_eth_set_link_ksettings,
+	.get_pauseparam = dpaa2_eth_get_pauseparam,
+	.set_pauseparam = dpaa2_eth_set_pauseparam,
+	.get_sset_count = dpaa2_eth_get_sset_count,
+	.get_ethtool_stats = dpaa2_eth_get_ethtool_stats,
+	.get_strings = dpaa2_eth_get_strings,
+	.get_rxnfc = dpaa2_eth_get_rxnfc,
+	.set_rxnfc = dpaa2_eth_set_rxnfc,
+	.get_ts_info = dpaa2_eth_get_ts_info,
+};