--- /dev/null
+/*
+ * 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.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#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 <asm/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-collsion",
+ "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_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)
+{
+ struct ucc_geth_private *ugeth = netdev_priv(netdev);
+ struct phy_device *phydev = ugeth->phydev;
+ struct ucc_geth_info *ug_info = ugeth->ug_info;
+
+ if (!phydev)
+ return -ENODEV;
+
+ ecmd->maxtxpkt = 1;
+ ecmd->maxrxpkt = ug_info->interruptcoalescingmaxvalue[0];
+
+ return phy_ethtool_gset(phydev, ecmd);
+}
+
+static int
+uec_set_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)
+{
+ struct ucc_geth_private *ugeth = netdev_priv(netdev);
+ struct phy_device *phydev = ugeth->phydev;
+
+ if (!phydev)
+ return -ENODEV;
+
+ return phy_ethtool_sset(phydev, ecmd);
+}
+
+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 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 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;
+ }
+
+ ug_info->bdRingLenRx[queue] = ring->rx_pending;
+ ug_info->bdRingLenTx[queue] = ring->tx_pending;
+
+ if (netif_running(netdev)) {
+ /* FIXME: restart automatically */
+ netdev_info(netdev, "Please re-open the interface\n");
+ }
+
+ 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;
+ }
+}
+
+static int uec_nway_reset(struct net_device *netdev)
+{
+ struct ucc_geth_private *ugeth = netdev_priv(netdev);
+
+ return phy_start_aneg(ugeth->phydev);
+}
+
+/* Report driver information */
+static void
+uec_get_drvinfo(struct net_device *netdev,
+ struct ethtool_drvinfo *drvinfo)
+{
+ strlcpy(drvinfo->driver, DRV_NAME, sizeof(drvinfo->driver));
+ strlcpy(drvinfo->version, DRV_VERSION, sizeof(drvinfo->version));
+ strlcpy(drvinfo->fw_version, "N/A", sizeof(drvinfo->fw_version));
+ strlcpy(drvinfo->bus_info, "QUICC ENGINE", sizeof(drvinfo->bus_info));
+ drvinfo->eedump_len = 0;
+ drvinfo->regdump_len = uec_get_regs_len(netdev);
+}
+
+#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_settings = uec_get_settings,
+ .set_settings = uec_set_settings,
+ .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 = uec_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,
+};
+
+void uec_set_ethtool_ops(struct net_device *netdev)
+{
+ netdev->ethtool_ops = &uec_ethtool_ops;
+}
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