1 files changed, 407 insertions, 0 deletions

diff --git a/drivers/net/ethernet/freescale/ucc_geth_ethtool.c b/drivers/net/ethernet/freescale/ucc_geth_ethtool.c
new file mode 100644
index 000000000..601beb93d
--- /dev/null
+++ b/drivers/net/ethernet/freescale/ucc_geth_ethtool.c
@@ -0,0 +1,407 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (c) 2007 Freescale Semiconductor, Inc. All rights reserved.
+ *
+ * Description: QE UCC Gigabit Ethernet Ethtool API Set
+ *
+ * Author: Li Yang <leoli@freescale.com>
+ *
+ * Limitation:
+ * Can only get/set settings of the first queue.
+ * Need to re-open the interface manually after changing some parameters.
+ */
+
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/stddef.h>
+#include <linux/interrupt.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/skbuff.h>
+#include <linux/spinlock.h>
+#include <linux/mm.h>
+#include <linux/delay.h>
+#include <linux/dma-mapping.h>
+#include <linux/ethtool.h>
+#include <linux/mii.h>
+#include <linux/phy.h>
+
+#include <asm/io.h>
+#include <asm/irq.h>
+#include <linux/uaccess.h>
+#include <asm/types.h>
+
+#include "ucc_geth.h"
+
+static const char hw_stat_gstrings[][ETH_GSTRING_LEN] = {
+	"tx-64-frames",
+	"tx-65-127-frames",
+	"tx-128-255-frames",
+	"rx-64-frames",
+	"rx-65-127-frames",
+	"rx-128-255-frames",
+	"tx-bytes-ok",
+	"tx-pause-frames",
+	"tx-multicast-frames",
+	"tx-broadcast-frames",
+	"rx-frames",
+	"rx-bytes-ok",
+	"rx-bytes-all",
+	"rx-multicast-frames",
+	"rx-broadcast-frames",
+	"stats-counter-carry",
+	"stats-counter-mask",
+	"rx-dropped-frames",
+};
+
+static const char tx_fw_stat_gstrings[][ETH_GSTRING_LEN] = {
+	"tx-single-collision",
+	"tx-multiple-collision",
+	"tx-late-collision",
+	"tx-aborted-frames",
+	"tx-lost-frames",
+	"tx-carrier-sense-errors",
+	"tx-frames-ok",
+	"tx-excessive-differ-frames",
+	"tx-256-511-frames",
+	"tx-512-1023-frames",
+	"tx-1024-1518-frames",
+	"tx-jumbo-frames",
+};
+
+static const char rx_fw_stat_gstrings[][ETH_GSTRING_LEN] = {
+	"rx-crc-errors",
+	"rx-alignment-errors",
+	"rx-in-range-length-errors",
+	"rx-out-of-range-length-errors",
+	"rx-too-long-frames",
+	"rx-runt",
+	"rx-very-long-event",
+	"rx-symbol-errors",
+	"rx-busy-drop-frames",
+	"reserved",
+	"reserved",
+	"rx-mismatch-drop-frames",
+	"rx-small-than-64",
+	"rx-256-511-frames",
+	"rx-512-1023-frames",
+	"rx-1024-1518-frames",
+	"rx-jumbo-frames",
+	"rx-mac-error-loss",
+	"rx-pause-frames",
+	"reserved",
+	"rx-vlan-removed",
+	"rx-vlan-replaced",
+	"rx-vlan-inserted",
+	"rx-ip-checksum-errors",
+};
+
+#define UEC_HW_STATS_LEN ARRAY_SIZE(hw_stat_gstrings)
+#define UEC_TX_FW_STATS_LEN ARRAY_SIZE(tx_fw_stat_gstrings)
+#define UEC_RX_FW_STATS_LEN ARRAY_SIZE(rx_fw_stat_gstrings)
+
+static int
+uec_get_ksettings(struct net_device *netdev, struct ethtool_link_ksettings *cmd)
+{
+	struct ucc_geth_private *ugeth = netdev_priv(netdev);
+	struct phy_device *phydev = ugeth->phydev;
+
+	if (!phydev)
+		return -ENODEV;
+
+	phy_ethtool_ksettings_get(phydev, cmd);
+
+	return 0;
+}
+
+static int
+uec_set_ksettings(struct net_device *netdev,
+		  const struct ethtool_link_ksettings *cmd)
+{
+	struct ucc_geth_private *ugeth = netdev_priv(netdev);
+	struct phy_device *phydev = ugeth->phydev;
+
+	if (!phydev)
+		return -ENODEV;
+
+	return phy_ethtool_ksettings_set(phydev, cmd);
+}
+
+static void
+uec_get_pauseparam(struct net_device *netdev,
+                     struct ethtool_pauseparam *pause)
+{
+	struct ucc_geth_private *ugeth = netdev_priv(netdev);
+
+	pause->autoneg = ugeth->phydev->autoneg;
+
+	if (ugeth->ug_info->receiveFlowControl)
+		pause->rx_pause = 1;
+	if (ugeth->ug_info->transmitFlowControl)
+		pause->tx_pause = 1;
+}
+
+static int
+uec_set_pauseparam(struct net_device *netdev,
+                     struct ethtool_pauseparam *pause)
+{
+	struct ucc_geth_private *ugeth = netdev_priv(netdev);
+	int ret = 0;
+
+	ugeth->ug_info->receiveFlowControl = pause->rx_pause;
+	ugeth->ug_info->transmitFlowControl = pause->tx_pause;
+
+	if (ugeth->phydev->autoneg) {
+		if (netif_running(netdev)) {
+			/* FIXME: automatically restart */
+			netdev_info(netdev, "Please re-open the interface\n");
+		}
+	} else {
+		struct ucc_geth_info *ug_info = ugeth->ug_info;
+
+		ret = init_flow_control_params(ug_info->aufc,
+					ug_info->receiveFlowControl,
+					ug_info->transmitFlowControl,
+					ug_info->pausePeriod,
+					ug_info->extensionField,
+					&ugeth->uccf->uf_regs->upsmr,
+					&ugeth->ug_regs->uempr,
+					&ugeth->ug_regs->maccfg1);
+	}
+
+	return ret;
+}
+
+static uint32_t
+uec_get_msglevel(struct net_device *netdev)
+{
+	struct ucc_geth_private *ugeth = netdev_priv(netdev);
+	return ugeth->msg_enable;
+}
+
+static void
+uec_set_msglevel(struct net_device *netdev, uint32_t data)
+{
+	struct ucc_geth_private *ugeth = netdev_priv(netdev);
+	ugeth->msg_enable = data;
+}
+
+static int
+uec_get_regs_len(struct net_device *netdev)
+{
+	return sizeof(struct ucc_geth);
+}
+
+static void
+uec_get_regs(struct net_device *netdev,
+               struct ethtool_regs *regs, void *p)
+{
+	int i;
+	struct ucc_geth_private *ugeth = netdev_priv(netdev);
+	u32 __iomem *ug_regs = (u32 __iomem *)ugeth->ug_regs;
+	u32 *buff = p;
+
+	for (i = 0; i < sizeof(struct ucc_geth) / sizeof(u32); i++)
+		buff[i] = in_be32(&ug_regs[i]);
+}
+
+static void
+uec_get_ringparam(struct net_device *netdev,
+		  struct ethtool_ringparam *ring,
+		  struct kernel_ethtool_ringparam *kernel_ring,
+		  struct netlink_ext_ack *extack)
+{
+	struct ucc_geth_private *ugeth = netdev_priv(netdev);
+	struct ucc_geth_info *ug_info = ugeth->ug_info;
+	int queue = 0;
+
+	ring->rx_max_pending = UCC_GETH_BD_RING_SIZE_MAX;
+	ring->rx_mini_max_pending = UCC_GETH_BD_RING_SIZE_MAX;
+	ring->rx_jumbo_max_pending = UCC_GETH_BD_RING_SIZE_MAX;
+	ring->tx_max_pending = UCC_GETH_BD_RING_SIZE_MAX;
+
+	ring->rx_pending = ug_info->bdRingLenRx[queue];
+	ring->rx_mini_pending = ug_info->bdRingLenRx[queue];
+	ring->rx_jumbo_pending = ug_info->bdRingLenRx[queue];
+	ring->tx_pending = ug_info->bdRingLenTx[queue];
+}
+
+static int
+uec_set_ringparam(struct net_device *netdev,
+		  struct ethtool_ringparam *ring,
+		  struct kernel_ethtool_ringparam *kernel_ring,
+		  struct netlink_ext_ack *extack)
+{
+	struct ucc_geth_private *ugeth = netdev_priv(netdev);
+	struct ucc_geth_info *ug_info = ugeth->ug_info;
+	int queue = 0, ret = 0;
+
+	if (ring->rx_pending < UCC_GETH_RX_BD_RING_SIZE_MIN) {
+		netdev_info(netdev, "RxBD ring size must be no smaller than %d\n",
+			    UCC_GETH_RX_BD_RING_SIZE_MIN);
+		return -EINVAL;
+	}
+	if (ring->rx_pending % UCC_GETH_RX_BD_RING_SIZE_ALIGNMENT) {
+		netdev_info(netdev, "RxBD ring size must be multiple of %d\n",
+			    UCC_GETH_RX_BD_RING_SIZE_ALIGNMENT);
+		return -EINVAL;
+	}
+	if (ring->tx_pending < UCC_GETH_TX_BD_RING_SIZE_MIN) {
+		netdev_info(netdev, "TxBD ring size must be no smaller than %d\n",
+			    UCC_GETH_TX_BD_RING_SIZE_MIN);
+		return -EINVAL;
+	}
+
+	if (netif_running(netdev))
+		return -EBUSY;
+
+	ug_info->bdRingLenRx[queue] = ring->rx_pending;
+	ug_info->bdRingLenTx[queue] = ring->tx_pending;
+
+	return ret;
+}
+
+static int uec_get_sset_count(struct net_device *netdev, int sset)
+{
+	struct ucc_geth_private *ugeth = netdev_priv(netdev);
+	u32 stats_mode = ugeth->ug_info->statisticsMode;
+	int len = 0;
+
+	switch (sset) {
+	case ETH_SS_STATS:
+		if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_HARDWARE)
+			len += UEC_HW_STATS_LEN;
+		if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX)
+			len += UEC_TX_FW_STATS_LEN;
+		if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX)
+			len += UEC_RX_FW_STATS_LEN;
+
+		return len;
+
+	default:
+		return -EOPNOTSUPP;
+	}
+}
+
+static void uec_get_strings(struct net_device *netdev, u32 stringset, u8 *buf)
+{
+	struct ucc_geth_private *ugeth = netdev_priv(netdev);
+	u32 stats_mode = ugeth->ug_info->statisticsMode;
+
+	if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_HARDWARE) {
+		memcpy(buf, hw_stat_gstrings, UEC_HW_STATS_LEN *
+			       	ETH_GSTRING_LEN);
+		buf += UEC_HW_STATS_LEN * ETH_GSTRING_LEN;
+	}
+	if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX) {
+		memcpy(buf, tx_fw_stat_gstrings, UEC_TX_FW_STATS_LEN *
+			       	ETH_GSTRING_LEN);
+		buf += UEC_TX_FW_STATS_LEN * ETH_GSTRING_LEN;
+	}
+	if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX)
+		memcpy(buf, rx_fw_stat_gstrings, UEC_RX_FW_STATS_LEN *
+			       	ETH_GSTRING_LEN);
+}
+
+static void uec_get_ethtool_stats(struct net_device *netdev,
+		struct ethtool_stats *stats, uint64_t *data)
+{
+	struct ucc_geth_private *ugeth = netdev_priv(netdev);
+	u32 stats_mode = ugeth->ug_info->statisticsMode;
+	u32 __iomem *base;
+	int i, j = 0;
+
+	if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_HARDWARE) {
+		if (ugeth->ug_regs)
+			base = (u32 __iomem *)&ugeth->ug_regs->tx64;
+		else
+			base = NULL;
+
+		for (i = 0; i < UEC_HW_STATS_LEN; i++)
+			data[j++] = base ? in_be32(&base[i]) : 0;
+	}
+	if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX) {
+		base = (u32 __iomem *)ugeth->p_tx_fw_statistics_pram;
+		for (i = 0; i < UEC_TX_FW_STATS_LEN; i++)
+			data[j++] = base ? in_be32(&base[i]) : 0;
+	}
+	if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX) {
+		base = (u32 __iomem *)ugeth->p_rx_fw_statistics_pram;
+		for (i = 0; i < UEC_RX_FW_STATS_LEN; i++)
+			data[j++] = base ? in_be32(&base[i]) : 0;
+	}
+}
+
+/* Report driver information */
+static void
+uec_get_drvinfo(struct net_device *netdev,
+                       struct ethtool_drvinfo *drvinfo)
+{
+	strscpy(drvinfo->driver, DRV_NAME, sizeof(drvinfo->driver));
+	strscpy(drvinfo->bus_info, "QUICC ENGINE", sizeof(drvinfo->bus_info));
+}
+
+#ifdef CONFIG_PM
+
+static void uec_get_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
+{
+	struct ucc_geth_private *ugeth = netdev_priv(netdev);
+	struct phy_device *phydev = ugeth->phydev;
+
+	if (phydev && phydev->irq)
+		wol->supported |= WAKE_PHY;
+	if (qe_alive_during_sleep())
+		wol->supported |= WAKE_MAGIC;
+
+	wol->wolopts = ugeth->wol_en;
+}
+
+static int uec_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
+{
+	struct ucc_geth_private *ugeth = netdev_priv(netdev);
+	struct phy_device *phydev = ugeth->phydev;
+
+	if (wol->wolopts & ~(WAKE_PHY | WAKE_MAGIC))
+		return -EINVAL;
+	else if (wol->wolopts & WAKE_PHY && (!phydev || !phydev->irq))
+		return -EINVAL;
+	else if (wol->wolopts & WAKE_MAGIC && !qe_alive_during_sleep())
+		return -EINVAL;
+
+	ugeth->wol_en = wol->wolopts;
+	device_set_wakeup_enable(&netdev->dev, ugeth->wol_en);
+
+	return 0;
+}
+
+#else
+#define uec_get_wol NULL
+#define uec_set_wol NULL
+#endif /* CONFIG_PM */
+
+static const struct ethtool_ops uec_ethtool_ops = {
+	.get_drvinfo            = uec_get_drvinfo,
+	.get_regs_len           = uec_get_regs_len,
+	.get_regs               = uec_get_regs,
+	.get_msglevel           = uec_get_msglevel,
+	.set_msglevel           = uec_set_msglevel,
+	.nway_reset             = phy_ethtool_nway_reset,
+	.get_link               = ethtool_op_get_link,
+	.get_ringparam          = uec_get_ringparam,
+	.set_ringparam          = uec_set_ringparam,
+	.get_pauseparam         = uec_get_pauseparam,
+	.set_pauseparam         = uec_set_pauseparam,
+	.get_sset_count		= uec_get_sset_count,
+	.get_strings            = uec_get_strings,
+	.get_ethtool_stats      = uec_get_ethtool_stats,
+	.get_wol		= uec_get_wol,
+	.set_wol		= uec_set_wol,
+	.get_ts_info		= ethtool_op_get_ts_info,
+	.get_link_ksettings	= uec_get_ksettings,
+	.set_link_ksettings	= uec_set_ksettings,
+};
+
+void uec_set_ethtool_ops(struct net_device *netdev)
+{
+	netdev->ethtool_ops = &uec_ethtool_ops;
+}