1 files changed, 464 insertions, 0 deletions
diff --git a/drivers/net/ethernet/broadcom/asp2/bcmasp_ethtool.c b/drivers/net/ethernet/broadcom/asp2/bcmasp_ethtool.c
new file mode 100644
index 000000000000..dd80ccfca19d
--- /dev/null
+++ b/drivers/net/ethernet/broadcom/asp2/bcmasp_ethtool.c
@@ -0,0 +1,464 @@
+// SPDX-License-Identifier: GPL-2.0
+#define pr_fmt(fmt)				"bcmasp_ethtool: " fmt
+
+#include <linux/unaligned.h>
+#include <linux/ethtool.h>
+#include <linux/netdevice.h>
+#include <linux/platform_device.h>
+
+#include "bcmasp.h"
+#include "bcmasp_intf_defs.h"
+
+enum bcmasp_stat_type {
+	BCMASP_STAT_RX_CTRL,
+	BCMASP_STAT_RX_CTRL_PER_INTF,
+	BCMASP_STAT_SOFT,
+};
+
+struct bcmasp_stats {
+	char stat_string[ETH_GSTRING_LEN];
+	enum bcmasp_stat_type type;
+	u32 reg_offset;
+};
+
+#define STAT_BCMASP_SOFT_MIB(str) { \
+	.stat_string = str, \
+	.type = BCMASP_STAT_SOFT, \
+}
+
+#define STAT_BCMASP_OFFSET(str, _type, offset) { \
+	.stat_string = str, \
+	.type = _type, \
+	.reg_offset = offset, \
+}
+
+#define STAT_BCMASP_RX_CTRL(str, offset) \
+	STAT_BCMASP_OFFSET(str, BCMASP_STAT_RX_CTRL, offset)
+#define STAT_BCMASP_RX_CTRL_PER_INTF(str, offset) \
+	STAT_BCMASP_OFFSET(str, BCMASP_STAT_RX_CTRL_PER_INTF, offset)
+
+/* Must match the order of struct bcmasp_mib_counters */
+static const struct bcmasp_stats bcmasp_gstrings_stats[] = {
+	/* ASP RX control */
+	STAT_BCMASP_RX_CTRL_PER_INTF("Frames From Unimac",
+				     ASP_RX_CTRL_UMAC_0_FRAME_COUNT),
+	STAT_BCMASP_RX_CTRL_PER_INTF("Frames From Port",
+				     ASP_RX_CTRL_FB_0_FRAME_COUNT),
+	STAT_BCMASP_RX_CTRL_PER_INTF("RX Buffer FIFO Depth",
+				     ASP_RX_CTRL_FB_RX_FIFO_DEPTH),
+	STAT_BCMASP_RX_CTRL("Frames Out(Buffer)",
+			    ASP_RX_CTRL_FB_OUT_FRAME_COUNT),
+	STAT_BCMASP_RX_CTRL("Frames Out(Filters)",
+			    ASP_RX_CTRL_FB_FILT_OUT_FRAME_COUNT),
+	/* Software maintained statistics */
+	STAT_BCMASP_SOFT_MIB("RX SKB Alloc Failed"),
+	STAT_BCMASP_SOFT_MIB("TX DMA Failed"),
+	STAT_BCMASP_SOFT_MIB("Multicast Filters Full"),
+	STAT_BCMASP_SOFT_MIB("Unicast Filters Full"),
+	STAT_BCMASP_SOFT_MIB("MDA Filters Combined"),
+	STAT_BCMASP_SOFT_MIB("Promisc Filter Set"),
+	STAT_BCMASP_SOFT_MIB("TX Realloc For Offload Failed"),
+	STAT_BCMASP_SOFT_MIB("Tx Timeout Count"),
+};
+
+#define BCMASP_STATS_LEN	ARRAY_SIZE(bcmasp_gstrings_stats)
+
+static int bcmasp_get_sset_count(struct net_device *dev, int string_set)
+{
+	switch (string_set) {
+	case ETH_SS_STATS:
+		return BCMASP_STATS_LEN;
+	default:
+		return -EOPNOTSUPP;
+	}
+}
+
+static void bcmasp_get_strings(struct net_device *dev, u32 stringset,
+			       u8 *data)
+{
+	const char *str;
+	unsigned int i;
+
+	switch (stringset) {
+	case ETH_SS_STATS:
+		for (i = 0; i < BCMASP_STATS_LEN; i++) {
+			str = bcmasp_gstrings_stats[i].stat_string;
+			ethtool_puts(&data, str);
+		}
+		break;
+	default:
+		return;
+	}
+}
+
+static void bcmasp_update_mib_counters(struct bcmasp_intf *intf)
+{
+	unsigned int i;
+
+	for (i = 0; i < BCMASP_STATS_LEN; i++) {
+		const struct bcmasp_stats *s;
+		u32 offset, val;
+		char *p;
+
+		s = &bcmasp_gstrings_stats[i];
+		offset = s->reg_offset;
+		switch (s->type) {
+		case BCMASP_STAT_SOFT:
+			continue;
+		case BCMASP_STAT_RX_CTRL:
+			val = rx_ctrl_core_rl(intf->parent, offset);
+			break;
+		case BCMASP_STAT_RX_CTRL_PER_INTF:
+			offset += sizeof(u32) * intf->port;
+			val = rx_ctrl_core_rl(intf->parent, offset);
+			break;
+		default:
+			continue;
+		}
+		p = (char *)(&intf->mib) + (i * sizeof(u32));
+		put_unaligned(val, (u32 *)p);
+	}
+}
+
+static void bcmasp_get_ethtool_stats(struct net_device *dev,
+				     struct ethtool_stats *stats,
+				     u64 *data)
+{
+	struct bcmasp_intf *intf = netdev_priv(dev);
+	unsigned int i;
+	char *p;
+
+	if (netif_running(dev))
+		bcmasp_update_mib_counters(intf);
+
+	for (i = 0; i < BCMASP_STATS_LEN; i++) {
+		p = (char *)(&intf->mib) + (i * sizeof(u32));
+		data[i] = *(u32 *)p;
+	}
+}
+
+static void bcmasp_get_drvinfo(struct net_device *dev,
+			       struct ethtool_drvinfo *info)
+{
+	strscpy(info->driver, "bcmasp", sizeof(info->driver));
+	strscpy(info->bus_info, dev_name(dev->dev.parent),
+		sizeof(info->bus_info));
+}
+
+static u32 bcmasp_get_msglevel(struct net_device *dev)
+{
+	struct bcmasp_intf *intf = netdev_priv(dev);
+
+	return intf->msg_enable;
+}
+
+static void bcmasp_set_msglevel(struct net_device *dev, u32 level)
+{
+	struct bcmasp_intf *intf = netdev_priv(dev);
+
+	intf->msg_enable = level;
+}
+
+#define BCMASP_SUPPORTED_WAKE   (WAKE_MAGIC | WAKE_MAGICSECURE | WAKE_FILTER)
+static void bcmasp_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
+{
+	struct bcmasp_intf *intf = netdev_priv(dev);
+	struct bcmasp_priv *priv = intf->parent;
+	struct device *kdev = &priv->pdev->dev;
+	u32 phy_wolopts = 0;
+
+	if (dev->phydev) {
+		phy_ethtool_get_wol(dev->phydev, wol);
+		phy_wolopts = wol->wolopts;
+	}
+
+	/* MAC is not wake-up capable, return what the PHY does */
+	if (!device_can_wakeup(kdev))
+		return;
+
+	/* Overlay MAC capabilities with that of the PHY queried before */
+	wol->supported |= BCMASP_SUPPORTED_WAKE;
+	wol->wolopts |= intf->wolopts;
+
+	/* Return the PHY configured magic password */
+	if (phy_wolopts & WAKE_MAGICSECURE)
+		return;
+
+	memset(wol->sopass, 0, sizeof(wol->sopass));
+
+	/* Otherwise the MAC one */
+	if (wol->wolopts & WAKE_MAGICSECURE)
+		memcpy(wol->sopass, intf->sopass, sizeof(intf->sopass));
+}
+
+static int bcmasp_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
+{
+	struct bcmasp_intf *intf = netdev_priv(dev);
+	struct bcmasp_priv *priv = intf->parent;
+	struct device *kdev = &priv->pdev->dev;
+	int ret = 0;
+
+	/* Try Wake-on-LAN from the PHY first */
+	if (dev->phydev) {
+		ret = phy_ethtool_set_wol(dev->phydev, wol);
+		if (ret != -EOPNOTSUPP && wol->wolopts)
+			return ret;
+	}
+
+	if (!device_can_wakeup(kdev))
+		return -EOPNOTSUPP;
+
+	if (wol->wolopts & ~BCMASP_SUPPORTED_WAKE)
+		return -EINVAL;
+
+	/* Interface Specific */
+	intf->wolopts = wol->wolopts;
+	if (intf->wolopts & WAKE_MAGICSECURE)
+		memcpy(intf->sopass, wol->sopass, sizeof(wol->sopass));
+
+	mutex_lock(&priv->wol_lock);
+	bcmasp_enable_wol(intf, !!intf->wolopts);
+	mutex_unlock(&priv->wol_lock);
+
+	return 0;
+}
+
+static int bcmasp_flow_insert(struct net_device *dev, struct ethtool_rxnfc *cmd)
+{
+	struct bcmasp_intf *intf = netdev_priv(dev);
+	struct bcmasp_net_filter *nfilter;
+	u32 loc = cmd->fs.location;
+	bool wake = false;
+
+	if (cmd->fs.ring_cookie == RX_CLS_FLOW_WAKE)
+		wake = true;
+
+	/* Currently only supports WAKE filters */
+	if (!wake)
+		return -EOPNOTSUPP;
+
+	switch (cmd->fs.flow_type & ~(FLOW_EXT | FLOW_MAC_EXT)) {
+	case ETHER_FLOW:
+	case IP_USER_FLOW:
+	case TCP_V4_FLOW:
+	case UDP_V4_FLOW:
+	case TCP_V6_FLOW:
+	case UDP_V6_FLOW:
+		break;
+	default:
+		return -EOPNOTSUPP;
+	}
+
+	/* Check if filter already exists */
+	if (bcmasp_netfilt_check_dup(intf, &cmd->fs))
+		return -EINVAL;
+
+	nfilter = bcmasp_netfilt_get_init(intf, loc, wake, true);
+	if (IS_ERR(nfilter))
+		return PTR_ERR(nfilter);
+
+	/* Return the location where we did insert the filter */
+	cmd->fs.location = nfilter->hw_index;
+	memcpy(&nfilter->fs, &cmd->fs, sizeof(struct ethtool_rx_flow_spec));
+
+	/* Since we only support wake filters, defer register programming till
+	 * suspend time.
+	 */
+	return 0;
+}
+
+static int bcmasp_flow_delete(struct net_device *dev, struct ethtool_rxnfc *cmd)
+{
+	struct bcmasp_intf *intf = netdev_priv(dev);
+	struct bcmasp_net_filter *nfilter;
+
+	nfilter = bcmasp_netfilt_get_init(intf, cmd->fs.location, false, false);
+	if (IS_ERR(nfilter))
+		return PTR_ERR(nfilter);
+
+	bcmasp_netfilt_release(intf, nfilter);
+
+	return 0;
+}
+
+static int bcmasp_flow_get(struct bcmasp_intf *intf, struct ethtool_rxnfc *cmd)
+{
+	struct bcmasp_net_filter *nfilter;
+
+	nfilter = bcmasp_netfilt_get_init(intf, cmd->fs.location, false, false);
+	if (IS_ERR(nfilter))
+		return PTR_ERR(nfilter);
+
+	memcpy(&cmd->fs, &nfilter->fs, sizeof(nfilter->fs));
+
+	cmd->data = intf->parent->num_net_filters;
+
+	return 0;
+}
+
+static int bcmasp_set_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd)
+{
+	struct bcmasp_intf *intf = netdev_priv(dev);
+	int ret = -EOPNOTSUPP;
+
+	mutex_lock(&intf->parent->net_lock);
+
+	switch (cmd->cmd) {
+	case ETHTOOL_SRXCLSRLINS:
+		ret = bcmasp_flow_insert(dev, cmd);
+		break;
+	case ETHTOOL_SRXCLSRLDEL:
+		ret = bcmasp_flow_delete(dev, cmd);
+		break;
+	default:
+		break;
+	}
+
+	mutex_unlock(&intf->parent->net_lock);
+
+	return ret;
+}
+
+static int bcmasp_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd,
+			    u32 *rule_locs)
+{
+	struct bcmasp_intf *intf = netdev_priv(dev);
+	int err = 0;
+
+	mutex_lock(&intf->parent->net_lock);
+
+	switch (cmd->cmd) {
+	case ETHTOOL_GRXCLSRLCNT:
+		cmd->rule_cnt = bcmasp_netfilt_get_active(intf);
+		/* We support specifying rule locations */
+		cmd->data |= RX_CLS_LOC_SPECIAL;
+		break;
+	case ETHTOOL_GRXCLSRULE:
+		err = bcmasp_flow_get(intf, cmd);
+		break;
+	case ETHTOOL_GRXCLSRLALL:
+		err = bcmasp_netfilt_get_all_active(intf, rule_locs, &cmd->rule_cnt);
+		cmd->data = intf->parent->num_net_filters;
+		break;
+	default:
+		err = -EOPNOTSUPP;
+		break;
+	}
+
+	mutex_unlock(&intf->parent->net_lock);
+
+	return err;
+}
+
+static int bcmasp_get_eee(struct net_device *dev, struct ethtool_keee *e)
+{
+	if (!dev->phydev)
+		return -ENODEV;
+
+	return phy_ethtool_get_eee(dev->phydev, e);
+}
+
+static int bcmasp_set_eee(struct net_device *dev, struct ethtool_keee *e)
+{
+	if (!dev->phydev)
+		return -ENODEV;
+
+	return phy_ethtool_set_eee(dev->phydev, e);
+}
+
+static void bcmasp_get_eth_mac_stats(struct net_device *dev,
+				     struct ethtool_eth_mac_stats *mac_stats)
+{
+	struct bcmasp_intf *intf = netdev_priv(dev);
+
+	mac_stats->FramesTransmittedOK = umac_rl(intf, UMC_GTPOK);
+	mac_stats->SingleCollisionFrames = umac_rl(intf, UMC_GTSCL);
+	mac_stats->MultipleCollisionFrames = umac_rl(intf, UMC_GTMCL);
+	mac_stats->FramesReceivedOK = umac_rl(intf, UMC_GRPOK);
+	mac_stats->FrameCheckSequenceErrors = umac_rl(intf, UMC_GRFCS);
+	mac_stats->AlignmentErrors = umac_rl(intf, UMC_GRALN);
+	mac_stats->OctetsTransmittedOK = umac_rl(intf, UMC_GTBYT);
+	mac_stats->FramesWithDeferredXmissions = umac_rl(intf, UMC_GTDRF);
+	mac_stats->LateCollisions = umac_rl(intf, UMC_GTLCL);
+	mac_stats->FramesAbortedDueToXSColls = umac_rl(intf, UMC_GTXCL);
+	mac_stats->OctetsReceivedOK = umac_rl(intf, UMC_GRBYT);
+	mac_stats->MulticastFramesXmittedOK = umac_rl(intf, UMC_GTMCA);
+	mac_stats->BroadcastFramesXmittedOK = umac_rl(intf, UMC_GTBCA);
+	mac_stats->FramesWithExcessiveDeferral = umac_rl(intf, UMC_GTEDF);
+	mac_stats->MulticastFramesReceivedOK = umac_rl(intf, UMC_GRMCA);
+	mac_stats->BroadcastFramesReceivedOK = umac_rl(intf, UMC_GRBCA);
+}
+
+static const struct ethtool_rmon_hist_range bcmasp_rmon_ranges[] = {
+	{    0,   64},
+	{   65,  127},
+	{  128,  255},
+	{  256,  511},
+	{  512, 1023},
+	{ 1024, 1518},
+	{ 1519, 1522},
+	{}
+};
+
+static void bcmasp_get_rmon_stats(struct net_device *dev,
+				  struct ethtool_rmon_stats *rmon_stats,
+				  const struct ethtool_rmon_hist_range **ranges)
+{
+	struct bcmasp_intf *intf = netdev_priv(dev);
+
+	*ranges = bcmasp_rmon_ranges;
+
+	rmon_stats->undersize_pkts = umac_rl(intf, UMC_RRUND);
+	rmon_stats->oversize_pkts = umac_rl(intf, UMC_GROVR);
+	rmon_stats->fragments = umac_rl(intf, UMC_RRFRG);
+	rmon_stats->jabbers = umac_rl(intf, UMC_GRJBR);
+
+	rmon_stats->hist[0] = umac_rl(intf, UMC_GR64);
+	rmon_stats->hist[1] = umac_rl(intf, UMC_GR127);
+	rmon_stats->hist[2] = umac_rl(intf, UMC_GR255);
+	rmon_stats->hist[3] = umac_rl(intf, UMC_GR511);
+	rmon_stats->hist[4] = umac_rl(intf, UMC_GR1023);
+	rmon_stats->hist[5] = umac_rl(intf, UMC_GR1518);
+	rmon_stats->hist[6] = umac_rl(intf, UMC_GRMGV);
+
+	rmon_stats->hist_tx[0] = umac_rl(intf, UMC_TR64);
+	rmon_stats->hist_tx[1] = umac_rl(intf, UMC_TR127);
+	rmon_stats->hist_tx[2] = umac_rl(intf, UMC_TR255);
+	rmon_stats->hist_tx[3] = umac_rl(intf, UMC_TR511);
+	rmon_stats->hist_tx[4] = umac_rl(intf, UMC_TR1023);
+	rmon_stats->hist_tx[5] = umac_rl(intf, UMC_TR1518);
+	rmon_stats->hist_tx[6] = umac_rl(intf, UMC_TRMGV);
+}
+
+static void bcmasp_get_eth_ctrl_stats(struct net_device *dev,
+				      struct ethtool_eth_ctrl_stats *ctrl_stats)
+{
+	struct bcmasp_intf *intf = netdev_priv(dev);
+
+	ctrl_stats->MACControlFramesTransmitted = umac_rl(intf, UMC_GTXCF);
+	ctrl_stats->MACControlFramesReceived = umac_rl(intf, UMC_GRXCF);
+	ctrl_stats->UnsupportedOpcodesReceived = umac_rl(intf, UMC_GRXUO);
+}
+
+const struct ethtool_ops bcmasp_ethtool_ops = {
+	.get_drvinfo		= bcmasp_get_drvinfo,
+	.get_link		= ethtool_op_get_link,
+	.get_link_ksettings	= phy_ethtool_get_link_ksettings,
+	.set_link_ksettings	= phy_ethtool_set_link_ksettings,
+	.get_msglevel		= bcmasp_get_msglevel,
+	.set_msglevel		= bcmasp_set_msglevel,
+	.get_wol		= bcmasp_get_wol,
+	.set_wol		= bcmasp_set_wol,
+	.get_rxnfc		= bcmasp_get_rxnfc,
+	.set_rxnfc		= bcmasp_set_rxnfc,
+	.set_eee		= bcmasp_set_eee,
+	.get_eee		= bcmasp_get_eee,
+	.get_eth_mac_stats	= bcmasp_get_eth_mac_stats,
+	.get_rmon_stats		= bcmasp_get_rmon_stats,
+	.get_eth_ctrl_stats	= bcmasp_get_eth_ctrl_stats,
+	.get_strings		= bcmasp_get_strings,
+	.get_ethtool_stats	= bcmasp_get_ethtool_stats,
+	.get_sset_count		= bcmasp_get_sset_count,
+	.get_ts_info		= ethtool_op_get_ts_info,
+	.nway_reset		= phy_ethtool_nway_reset,
+};