410 lines
11 KiB
C
410 lines
11 KiB
C
/*
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* Copyright (c) 2007 Freescale Semiconductor, Inc. All rights reserved.
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*
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* Description: QE UCC Gigabit Ethernet Ethtool API Set
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*
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* Author: Li Yang <leoli@freescale.com>
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*
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* Limitation:
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* Can only get/set settings of the first queue.
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* Need to re-open the interface manually after changing some parameters.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*/
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#include <linux/kernel.h>
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#include <linux/errno.h>
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#include <linux/stddef.h>
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#include <linux/interrupt.h>
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#include <linux/netdevice.h>
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#include <linux/etherdevice.h>
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#include <linux/skbuff.h>
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#include <linux/spinlock.h>
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#include <linux/mm.h>
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#include <linux/delay.h>
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#include <linux/dma-mapping.h>
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#include <linux/ethtool.h>
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#include <linux/mii.h>
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#include <linux/phy.h>
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#include <asm/io.h>
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#include <asm/irq.h>
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#include <linux/uaccess.h>
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#include <asm/types.h>
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#include "ucc_geth.h"
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static const char hw_stat_gstrings[][ETH_GSTRING_LEN] = {
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"tx-64-frames",
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"tx-65-127-frames",
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"tx-128-255-frames",
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"rx-64-frames",
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"rx-65-127-frames",
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"rx-128-255-frames",
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"tx-bytes-ok",
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"tx-pause-frames",
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"tx-multicast-frames",
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"tx-broadcast-frames",
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"rx-frames",
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"rx-bytes-ok",
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"rx-bytes-all",
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"rx-multicast-frames",
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"rx-broadcast-frames",
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"stats-counter-carry",
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"stats-counter-mask",
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"rx-dropped-frames",
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};
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static const char tx_fw_stat_gstrings[][ETH_GSTRING_LEN] = {
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"tx-single-collision",
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"tx-multiple-collision",
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"tx-late-collision",
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"tx-aborted-frames",
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"tx-lost-frames",
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"tx-carrier-sense-errors",
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"tx-frames-ok",
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"tx-excessive-differ-frames",
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"tx-256-511-frames",
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"tx-512-1023-frames",
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"tx-1024-1518-frames",
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"tx-jumbo-frames",
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};
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static const char rx_fw_stat_gstrings[][ETH_GSTRING_LEN] = {
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"rx-crc-errors",
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"rx-alignment-errors",
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"rx-in-range-length-errors",
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"rx-out-of-range-length-errors",
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"rx-too-long-frames",
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"rx-runt",
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"rx-very-long-event",
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"rx-symbol-errors",
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"rx-busy-drop-frames",
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"reserved",
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"reserved",
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"rx-mismatch-drop-frames",
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"rx-small-than-64",
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"rx-256-511-frames",
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"rx-512-1023-frames",
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"rx-1024-1518-frames",
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"rx-jumbo-frames",
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"rx-mac-error-loss",
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"rx-pause-frames",
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"reserved",
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"rx-vlan-removed",
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"rx-vlan-replaced",
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"rx-vlan-inserted",
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"rx-ip-checksum-errors",
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};
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#define UEC_HW_STATS_LEN ARRAY_SIZE(hw_stat_gstrings)
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#define UEC_TX_FW_STATS_LEN ARRAY_SIZE(tx_fw_stat_gstrings)
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#define UEC_RX_FW_STATS_LEN ARRAY_SIZE(rx_fw_stat_gstrings)
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static int
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uec_get_ksettings(struct net_device *netdev, struct ethtool_link_ksettings *cmd)
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{
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struct ucc_geth_private *ugeth = netdev_priv(netdev);
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struct phy_device *phydev = ugeth->phydev;
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if (!phydev)
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return -ENODEV;
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phy_ethtool_ksettings_get(phydev, cmd);
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return 0;
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}
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static int
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uec_set_ksettings(struct net_device *netdev,
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const struct ethtool_link_ksettings *cmd)
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{
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struct ucc_geth_private *ugeth = netdev_priv(netdev);
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struct phy_device *phydev = ugeth->phydev;
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if (!phydev)
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return -ENODEV;
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return phy_ethtool_ksettings_set(phydev, cmd);
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}
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static void
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uec_get_pauseparam(struct net_device *netdev,
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struct ethtool_pauseparam *pause)
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{
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struct ucc_geth_private *ugeth = netdev_priv(netdev);
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pause->autoneg = ugeth->phydev->autoneg;
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if (ugeth->ug_info->receiveFlowControl)
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pause->rx_pause = 1;
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if (ugeth->ug_info->transmitFlowControl)
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pause->tx_pause = 1;
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}
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static int
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uec_set_pauseparam(struct net_device *netdev,
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struct ethtool_pauseparam *pause)
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{
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struct ucc_geth_private *ugeth = netdev_priv(netdev);
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int ret = 0;
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ugeth->ug_info->receiveFlowControl = pause->rx_pause;
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ugeth->ug_info->transmitFlowControl = pause->tx_pause;
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if (ugeth->phydev->autoneg) {
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if (netif_running(netdev)) {
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/* FIXME: automatically restart */
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netdev_info(netdev, "Please re-open the interface\n");
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}
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} else {
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struct ucc_geth_info *ug_info = ugeth->ug_info;
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ret = init_flow_control_params(ug_info->aufc,
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ug_info->receiveFlowControl,
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ug_info->transmitFlowControl,
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ug_info->pausePeriod,
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ug_info->extensionField,
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&ugeth->uccf->uf_regs->upsmr,
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&ugeth->ug_regs->uempr,
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&ugeth->ug_regs->maccfg1);
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}
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return ret;
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}
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static uint32_t
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uec_get_msglevel(struct net_device *netdev)
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{
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struct ucc_geth_private *ugeth = netdev_priv(netdev);
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return ugeth->msg_enable;
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}
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static void
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uec_set_msglevel(struct net_device *netdev, uint32_t data)
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{
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struct ucc_geth_private *ugeth = netdev_priv(netdev);
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ugeth->msg_enable = data;
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}
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static int
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uec_get_regs_len(struct net_device *netdev)
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{
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return sizeof(struct ucc_geth);
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}
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static void
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uec_get_regs(struct net_device *netdev,
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struct ethtool_regs *regs, void *p)
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{
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int i;
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struct ucc_geth_private *ugeth = netdev_priv(netdev);
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u32 __iomem *ug_regs = (u32 __iomem *)ugeth->ug_regs;
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u32 *buff = p;
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for (i = 0; i < sizeof(struct ucc_geth) / sizeof(u32); i++)
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buff[i] = in_be32(&ug_regs[i]);
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}
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static void
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uec_get_ringparam(struct net_device *netdev,
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struct ethtool_ringparam *ring)
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{
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struct ucc_geth_private *ugeth = netdev_priv(netdev);
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struct ucc_geth_info *ug_info = ugeth->ug_info;
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int queue = 0;
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ring->rx_max_pending = UCC_GETH_BD_RING_SIZE_MAX;
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ring->rx_mini_max_pending = UCC_GETH_BD_RING_SIZE_MAX;
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ring->rx_jumbo_max_pending = UCC_GETH_BD_RING_SIZE_MAX;
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ring->tx_max_pending = UCC_GETH_BD_RING_SIZE_MAX;
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ring->rx_pending = ug_info->bdRingLenRx[queue];
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ring->rx_mini_pending = ug_info->bdRingLenRx[queue];
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ring->rx_jumbo_pending = ug_info->bdRingLenRx[queue];
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ring->tx_pending = ug_info->bdRingLenTx[queue];
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}
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static int
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uec_set_ringparam(struct net_device *netdev,
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struct ethtool_ringparam *ring)
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{
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struct ucc_geth_private *ugeth = netdev_priv(netdev);
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struct ucc_geth_info *ug_info = ugeth->ug_info;
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int queue = 0, ret = 0;
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if (ring->rx_pending < UCC_GETH_RX_BD_RING_SIZE_MIN) {
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netdev_info(netdev, "RxBD ring size must be no smaller than %d\n",
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UCC_GETH_RX_BD_RING_SIZE_MIN);
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return -EINVAL;
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}
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if (ring->rx_pending % UCC_GETH_RX_BD_RING_SIZE_ALIGNMENT) {
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netdev_info(netdev, "RxBD ring size must be multiple of %d\n",
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UCC_GETH_RX_BD_RING_SIZE_ALIGNMENT);
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return -EINVAL;
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}
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if (ring->tx_pending < UCC_GETH_TX_BD_RING_SIZE_MIN) {
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netdev_info(netdev, "TxBD ring size must be no smaller than %d\n",
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UCC_GETH_TX_BD_RING_SIZE_MIN);
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return -EINVAL;
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}
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if (netif_running(netdev))
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return -EBUSY;
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ug_info->bdRingLenRx[queue] = ring->rx_pending;
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ug_info->bdRingLenTx[queue] = ring->tx_pending;
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return ret;
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}
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static int uec_get_sset_count(struct net_device *netdev, int sset)
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{
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struct ucc_geth_private *ugeth = netdev_priv(netdev);
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u32 stats_mode = ugeth->ug_info->statisticsMode;
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int len = 0;
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switch (sset) {
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case ETH_SS_STATS:
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if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_HARDWARE)
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len += UEC_HW_STATS_LEN;
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if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX)
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len += UEC_TX_FW_STATS_LEN;
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if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX)
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len += UEC_RX_FW_STATS_LEN;
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return len;
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default:
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return -EOPNOTSUPP;
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}
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}
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static void uec_get_strings(struct net_device *netdev, u32 stringset, u8 *buf)
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{
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struct ucc_geth_private *ugeth = netdev_priv(netdev);
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u32 stats_mode = ugeth->ug_info->statisticsMode;
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if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_HARDWARE) {
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memcpy(buf, hw_stat_gstrings, UEC_HW_STATS_LEN *
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ETH_GSTRING_LEN);
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buf += UEC_HW_STATS_LEN * ETH_GSTRING_LEN;
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}
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if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX) {
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memcpy(buf, tx_fw_stat_gstrings, UEC_TX_FW_STATS_LEN *
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ETH_GSTRING_LEN);
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buf += UEC_TX_FW_STATS_LEN * ETH_GSTRING_LEN;
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}
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if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX)
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memcpy(buf, rx_fw_stat_gstrings, UEC_RX_FW_STATS_LEN *
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ETH_GSTRING_LEN);
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}
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static void uec_get_ethtool_stats(struct net_device *netdev,
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struct ethtool_stats *stats, uint64_t *data)
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{
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struct ucc_geth_private *ugeth = netdev_priv(netdev);
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u32 stats_mode = ugeth->ug_info->statisticsMode;
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u32 __iomem *base;
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int i, j = 0;
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if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_HARDWARE) {
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if (ugeth->ug_regs)
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base = (u32 __iomem *)&ugeth->ug_regs->tx64;
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else
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base = NULL;
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for (i = 0; i < UEC_HW_STATS_LEN; i++)
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data[j++] = base ? in_be32(&base[i]) : 0;
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}
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if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX) {
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base = (u32 __iomem *)ugeth->p_tx_fw_statistics_pram;
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for (i = 0; i < UEC_TX_FW_STATS_LEN; i++)
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data[j++] = base ? in_be32(&base[i]) : 0;
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}
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if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX) {
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base = (u32 __iomem *)ugeth->p_rx_fw_statistics_pram;
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for (i = 0; i < UEC_RX_FW_STATS_LEN; i++)
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data[j++] = base ? in_be32(&base[i]) : 0;
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}
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}
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/* Report driver information */
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static void
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uec_get_drvinfo(struct net_device *netdev,
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struct ethtool_drvinfo *drvinfo)
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{
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strlcpy(drvinfo->driver, DRV_NAME, sizeof(drvinfo->driver));
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strlcpy(drvinfo->version, DRV_VERSION, sizeof(drvinfo->version));
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strlcpy(drvinfo->fw_version, "N/A", sizeof(drvinfo->fw_version));
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strlcpy(drvinfo->bus_info, "QUICC ENGINE", sizeof(drvinfo->bus_info));
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}
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#ifdef CONFIG_PM
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static void uec_get_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
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{
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struct ucc_geth_private *ugeth = netdev_priv(netdev);
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struct phy_device *phydev = ugeth->phydev;
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if (phydev && phydev->irq)
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wol->supported |= WAKE_PHY;
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if (qe_alive_during_sleep())
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wol->supported |= WAKE_MAGIC;
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wol->wolopts = ugeth->wol_en;
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}
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static int uec_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
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{
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struct ucc_geth_private *ugeth = netdev_priv(netdev);
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struct phy_device *phydev = ugeth->phydev;
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if (wol->wolopts & ~(WAKE_PHY | WAKE_MAGIC))
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return -EINVAL;
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else if (wol->wolopts & WAKE_PHY && (!phydev || !phydev->irq))
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return -EINVAL;
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else if (wol->wolopts & WAKE_MAGIC && !qe_alive_during_sleep())
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return -EINVAL;
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ugeth->wol_en = wol->wolopts;
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device_set_wakeup_enable(&netdev->dev, ugeth->wol_en);
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return 0;
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}
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#else
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#define uec_get_wol NULL
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#define uec_set_wol NULL
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#endif /* CONFIG_PM */
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static const struct ethtool_ops uec_ethtool_ops = {
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.get_drvinfo = uec_get_drvinfo,
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.get_regs_len = uec_get_regs_len,
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.get_regs = uec_get_regs,
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.get_msglevel = uec_get_msglevel,
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.set_msglevel = uec_set_msglevel,
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.nway_reset = phy_ethtool_nway_reset,
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.get_link = ethtool_op_get_link,
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.get_ringparam = uec_get_ringparam,
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.set_ringparam = uec_set_ringparam,
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.get_pauseparam = uec_get_pauseparam,
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.set_pauseparam = uec_set_pauseparam,
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.get_sset_count = uec_get_sset_count,
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.get_strings = uec_get_strings,
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.get_ethtool_stats = uec_get_ethtool_stats,
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.get_wol = uec_get_wol,
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.set_wol = uec_set_wol,
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.get_ts_info = ethtool_op_get_ts_info,
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.get_link_ksettings = uec_get_ksettings,
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.set_link_ksettings = uec_set_ksettings,
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};
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void uec_set_ethtool_ops(struct net_device *netdev)
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{
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netdev->ethtool_ops = &uec_ethtool_ops;
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}
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