97fb5e8d9b
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 and only version 2 as published by the free software foundation this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 294 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Alexios Zavras <alexios.zavras@intel.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190529141900.825281744@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
284 lines
6.2 KiB
C
284 lines
6.2 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/* Copyright (c) 2016, The Linux Foundation. All rights reserved.
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*/
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#include <linux/ethtool.h>
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#include <linux/phy.h>
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#include "emac.h"
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static const char * const emac_ethtool_stat_strings[] = {
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"rx_ok",
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"rx_bcast",
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"rx_mcast",
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"rx_pause",
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"rx_ctrl",
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"rx_fcs_err",
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"rx_len_err",
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"rx_byte_cnt",
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"rx_runt",
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"rx_frag",
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"rx_sz_64",
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"rx_sz_65_127",
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"rx_sz_128_255",
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"rx_sz_256_511",
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"rx_sz_512_1023",
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"rx_sz_1024_1518",
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"rx_sz_1519_max",
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"rx_sz_ov",
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"rx_rxf_ov",
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"rx_align_err",
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"rx_bcast_byte_cnt",
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"rx_mcast_byte_cnt",
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"rx_err_addr",
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"rx_crc_align",
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"rx_jabbers",
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"tx_ok",
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"tx_bcast",
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"tx_mcast",
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"tx_pause",
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"tx_exc_defer",
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"tx_ctrl",
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"tx_defer",
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"tx_byte_cnt",
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"tx_sz_64",
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"tx_sz_65_127",
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"tx_sz_128_255",
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"tx_sz_256_511",
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"tx_sz_512_1023",
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"tx_sz_1024_1518",
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"tx_sz_1519_max",
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"tx_1_col",
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"tx_2_col",
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"tx_late_col",
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"tx_abort_col",
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"tx_underrun",
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"tx_rd_eop",
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"tx_len_err",
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"tx_trunc",
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"tx_bcast_byte",
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"tx_mcast_byte",
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"tx_col",
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};
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#define EMAC_STATS_LEN ARRAY_SIZE(emac_ethtool_stat_strings)
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static u32 emac_get_msglevel(struct net_device *netdev)
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{
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struct emac_adapter *adpt = netdev_priv(netdev);
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return adpt->msg_enable;
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}
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static void emac_set_msglevel(struct net_device *netdev, u32 data)
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{
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struct emac_adapter *adpt = netdev_priv(netdev);
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adpt->msg_enable = data;
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}
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static int emac_get_sset_count(struct net_device *netdev, int sset)
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{
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switch (sset) {
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case ETH_SS_PRIV_FLAGS:
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return 1;
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case ETH_SS_STATS:
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return EMAC_STATS_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 emac_get_strings(struct net_device *netdev, u32 stringset, u8 *data)
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{
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unsigned int i;
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switch (stringset) {
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case ETH_SS_PRIV_FLAGS:
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strcpy(data, "single-pause-mode");
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break;
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case ETH_SS_STATS:
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for (i = 0; i < EMAC_STATS_LEN; i++) {
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strlcpy(data, emac_ethtool_stat_strings[i],
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ETH_GSTRING_LEN);
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data += ETH_GSTRING_LEN;
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}
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break;
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}
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}
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static void emac_get_ethtool_stats(struct net_device *netdev,
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struct ethtool_stats *stats,
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u64 *data)
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{
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struct emac_adapter *adpt = netdev_priv(netdev);
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spin_lock(&adpt->stats.lock);
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emac_update_hw_stats(adpt);
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memcpy(data, &adpt->stats, EMAC_STATS_LEN * sizeof(u64));
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spin_unlock(&adpt->stats.lock);
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}
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static int emac_nway_reset(struct net_device *netdev)
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{
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struct phy_device *phydev = netdev->phydev;
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if (!phydev)
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return -ENODEV;
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return genphy_restart_aneg(phydev);
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}
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static void emac_get_ringparam(struct net_device *netdev,
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struct ethtool_ringparam *ring)
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{
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struct emac_adapter *adpt = netdev_priv(netdev);
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ring->rx_max_pending = EMAC_MAX_RX_DESCS;
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ring->tx_max_pending = EMAC_MAX_TX_DESCS;
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ring->rx_pending = adpt->rx_desc_cnt;
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ring->tx_pending = adpt->tx_desc_cnt;
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}
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static int emac_set_ringparam(struct net_device *netdev,
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struct ethtool_ringparam *ring)
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{
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struct emac_adapter *adpt = netdev_priv(netdev);
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/* We don't have separate queues/rings for small/large frames, so
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* reject any attempt to specify those values separately.
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*/
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if (ring->rx_mini_pending || ring->rx_jumbo_pending)
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return -EINVAL;
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adpt->tx_desc_cnt =
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clamp_val(ring->tx_pending, EMAC_MIN_TX_DESCS, EMAC_MAX_TX_DESCS);
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adpt->rx_desc_cnt =
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clamp_val(ring->rx_pending, EMAC_MIN_RX_DESCS, EMAC_MAX_RX_DESCS);
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if (netif_running(netdev))
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return emac_reinit_locked(adpt);
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return 0;
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}
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static void emac_get_pauseparam(struct net_device *netdev,
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struct ethtool_pauseparam *pause)
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{
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struct emac_adapter *adpt = netdev_priv(netdev);
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pause->autoneg = adpt->automatic ? AUTONEG_ENABLE : AUTONEG_DISABLE;
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pause->rx_pause = adpt->rx_flow_control ? 1 : 0;
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pause->tx_pause = adpt->tx_flow_control ? 1 : 0;
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}
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static int emac_set_pauseparam(struct net_device *netdev,
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struct ethtool_pauseparam *pause)
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{
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struct emac_adapter *adpt = netdev_priv(netdev);
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adpt->automatic = pause->autoneg == AUTONEG_ENABLE;
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adpt->rx_flow_control = pause->rx_pause != 0;
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adpt->tx_flow_control = pause->tx_pause != 0;
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if (netif_running(netdev))
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return emac_reinit_locked(adpt);
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return 0;
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}
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/* Selected registers that might want to track during runtime. */
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static const u16 emac_regs[] = {
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EMAC_DMA_MAS_CTRL,
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EMAC_MAC_CTRL,
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EMAC_TXQ_CTRL_0,
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EMAC_RXQ_CTRL_0,
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EMAC_DMA_CTRL,
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EMAC_INT_MASK,
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EMAC_AXI_MAST_CTRL,
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EMAC_CORE_HW_VERSION,
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EMAC_MISC_CTRL,
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};
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/* Every time emac_regs[] above is changed, increase this version number. */
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#define EMAC_REGS_VERSION 0
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#define EMAC_MAX_REG_SIZE ARRAY_SIZE(emac_regs)
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static void emac_get_regs(struct net_device *netdev,
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struct ethtool_regs *regs, void *buff)
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{
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struct emac_adapter *adpt = netdev_priv(netdev);
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u32 *val = buff;
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unsigned int i;
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regs->version = EMAC_REGS_VERSION;
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regs->len = EMAC_MAX_REG_SIZE * sizeof(u32);
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for (i = 0; i < EMAC_MAX_REG_SIZE; i++)
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val[i] = readl(adpt->base + emac_regs[i]);
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}
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static int emac_get_regs_len(struct net_device *netdev)
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{
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return EMAC_MAX_REG_SIZE * sizeof(u32);
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}
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#define EMAC_PRIV_ENABLE_SINGLE_PAUSE BIT(0)
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static int emac_set_priv_flags(struct net_device *netdev, u32 flags)
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{
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struct emac_adapter *adpt = netdev_priv(netdev);
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adpt->single_pause_mode = !!(flags & EMAC_PRIV_ENABLE_SINGLE_PAUSE);
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if (netif_running(netdev))
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return emac_reinit_locked(adpt);
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return 0;
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}
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static u32 emac_get_priv_flags(struct net_device *netdev)
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{
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struct emac_adapter *adpt = netdev_priv(netdev);
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return adpt->single_pause_mode ? EMAC_PRIV_ENABLE_SINGLE_PAUSE : 0;
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}
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static const struct ethtool_ops emac_ethtool_ops = {
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.get_link_ksettings = phy_ethtool_get_link_ksettings,
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.set_link_ksettings = phy_ethtool_set_link_ksettings,
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.get_msglevel = emac_get_msglevel,
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.set_msglevel = emac_set_msglevel,
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.get_sset_count = emac_get_sset_count,
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.get_strings = emac_get_strings,
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.get_ethtool_stats = emac_get_ethtool_stats,
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.get_ringparam = emac_get_ringparam,
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.set_ringparam = emac_set_ringparam,
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.get_pauseparam = emac_get_pauseparam,
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.set_pauseparam = emac_set_pauseparam,
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.nway_reset = emac_nway_reset,
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.get_link = ethtool_op_get_link,
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.get_regs_len = emac_get_regs_len,
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.get_regs = emac_get_regs,
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.set_priv_flags = emac_set_priv_flags,
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.get_priv_flags = emac_get_priv_flags,
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};
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void emac_set_ethtool_ops(struct net_device *netdev)
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{
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netdev->ethtool_ops = &emac_ethtool_ops;
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}
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