378 lines
11 KiB
C
378 lines
11 KiB
C
/* Applied Micro X-Gene SoC Ethernet Driver
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*
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* Copyright (c) 2014, Applied Micro Circuits Corporation
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* Authors: Iyappan Subramanian <isubramanian@apm.com>
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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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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <linux/ethtool.h>
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#include "xgene_enet_main.h"
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struct xgene_gstrings_stats {
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char name[ETH_GSTRING_LEN];
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int offset;
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u32 addr;
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u32 mask;
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};
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#define XGENE_STAT(m) { #m, offsetof(struct rtnl_link_stats64, m) }
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#define XGENE_EXTD_STAT(s, a, m) \
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{ \
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.name = #s, \
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.addr = a ## _ADDR, \
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.mask = m \
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}
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static const struct xgene_gstrings_stats gstrings_stats[] = {
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XGENE_STAT(rx_packets),
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XGENE_STAT(tx_packets),
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XGENE_STAT(rx_bytes),
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XGENE_STAT(tx_bytes),
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XGENE_STAT(rx_errors),
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XGENE_STAT(tx_errors),
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XGENE_STAT(rx_length_errors),
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XGENE_STAT(rx_crc_errors),
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XGENE_STAT(rx_frame_errors),
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XGENE_STAT(rx_fifo_errors)
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};
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static const struct xgene_gstrings_stats gstrings_extd_stats[] = {
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XGENE_EXTD_STAT(tx_rx_64b_frame_cntr, TR64, 31),
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XGENE_EXTD_STAT(tx_rx_127b_frame_cntr, TR127, 31),
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XGENE_EXTD_STAT(tx_rx_255b_frame_cntr, TR255, 31),
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XGENE_EXTD_STAT(tx_rx_511b_frame_cntr, TR511, 31),
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XGENE_EXTD_STAT(tx_rx_1023b_frame_cntr, TR1K, 31),
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XGENE_EXTD_STAT(tx_rx_1518b_frame_cntr, TRMAX, 31),
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XGENE_EXTD_STAT(tx_rx_1522b_frame_cntr, TRMGV, 31),
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XGENE_EXTD_STAT(rx_fcs_error_cntr, RFCS, 16),
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XGENE_EXTD_STAT(rx_multicast_pkt_cntr, RMCA, 31),
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XGENE_EXTD_STAT(rx_broadcast_pkt_cntr, RBCA, 31),
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XGENE_EXTD_STAT(rx_ctrl_frame_pkt_cntr, RXCF, 16),
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XGENE_EXTD_STAT(rx_pause_frame_pkt_cntr, RXPF, 16),
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XGENE_EXTD_STAT(rx_unk_opcode_cntr, RXUO, 16),
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XGENE_EXTD_STAT(rx_align_err_cntr, RALN, 16),
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XGENE_EXTD_STAT(rx_frame_len_err_cntr, RFLR, 16),
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XGENE_EXTD_STAT(rx_frame_len_err_recov_cntr, DUMP, 0),
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XGENE_EXTD_STAT(rx_code_err_cntr, RCDE, 16),
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XGENE_EXTD_STAT(rx_carrier_sense_err_cntr, RCSE, 16),
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XGENE_EXTD_STAT(rx_undersize_pkt_cntr, RUND, 16),
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XGENE_EXTD_STAT(rx_oversize_pkt_cntr, ROVR, 16),
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XGENE_EXTD_STAT(rx_fragments_cntr, RFRG, 16),
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XGENE_EXTD_STAT(rx_jabber_cntr, RJBR, 16),
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XGENE_EXTD_STAT(rx_jabber_recov_cntr, DUMP, 0),
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XGENE_EXTD_STAT(rx_dropped_pkt_cntr, RDRP, 16),
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XGENE_EXTD_STAT(rx_overrun_cntr, DUMP, 0),
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XGENE_EXTD_STAT(tx_multicast_pkt_cntr, TMCA, 31),
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XGENE_EXTD_STAT(tx_broadcast_pkt_cntr, TBCA, 31),
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XGENE_EXTD_STAT(tx_pause_ctrl_frame_cntr, TXPF, 16),
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XGENE_EXTD_STAT(tx_defer_pkt_cntr, TDFR, 31),
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XGENE_EXTD_STAT(tx_excv_defer_pkt_cntr, TEDF, 31),
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XGENE_EXTD_STAT(tx_single_col_pkt_cntr, TSCL, 31),
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XGENE_EXTD_STAT(tx_multi_col_pkt_cntr, TMCL, 31),
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XGENE_EXTD_STAT(tx_late_col_pkt_cntr, TLCL, 31),
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XGENE_EXTD_STAT(tx_excv_col_pkt_cntr, TXCL, 31),
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XGENE_EXTD_STAT(tx_total_col_cntr, TNCL, 31),
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XGENE_EXTD_STAT(tx_pause_frames_hnrd_cntr, TPFH, 16),
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XGENE_EXTD_STAT(tx_drop_frame_cntr, TDRP, 16),
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XGENE_EXTD_STAT(tx_jabber_frame_cntr, TJBR, 12),
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XGENE_EXTD_STAT(tx_fcs_error_cntr, TFCS, 12),
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XGENE_EXTD_STAT(tx_ctrl_frame_cntr, TXCF, 12),
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XGENE_EXTD_STAT(tx_oversize_frame_cntr, TOVR, 12),
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XGENE_EXTD_STAT(tx_undersize_frame_cntr, TUND, 12),
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XGENE_EXTD_STAT(tx_fragments_cntr, TFRG, 12),
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XGENE_EXTD_STAT(tx_underrun_cntr, DUMP, 0)
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};
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#define XGENE_STATS_LEN ARRAY_SIZE(gstrings_stats)
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#define XGENE_EXTD_STATS_LEN ARRAY_SIZE(gstrings_extd_stats)
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#define RFCS_IDX 7
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#define RALN_IDX 13
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#define RFLR_IDX 14
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#define FALSE_RFLR_IDX 15
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#define RUND_IDX 18
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#define FALSE_RJBR_IDX 22
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#define RX_OVERRUN_IDX 24
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#define TFCS_IDX 38
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#define TFRG_IDX 42
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#define TX_UNDERRUN_IDX 43
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static void xgene_get_drvinfo(struct net_device *ndev,
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struct ethtool_drvinfo *info)
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{
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struct xgene_enet_pdata *pdata = netdev_priv(ndev);
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struct platform_device *pdev = pdata->pdev;
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strcpy(info->driver, "xgene_enet");
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strcpy(info->version, XGENE_DRV_VERSION);
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snprintf(info->fw_version, ETHTOOL_FWVERS_LEN, "N/A");
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sprintf(info->bus_info, "%s", pdev->name);
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}
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static int xgene_get_link_ksettings(struct net_device *ndev,
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struct ethtool_link_ksettings *cmd)
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{
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struct xgene_enet_pdata *pdata = netdev_priv(ndev);
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struct phy_device *phydev = ndev->phydev;
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u32 supported;
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if (phy_interface_mode_is_rgmii(pdata->phy_mode)) {
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if (phydev == NULL)
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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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} else if (pdata->phy_mode == PHY_INTERFACE_MODE_SGMII) {
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if (pdata->mdio_driver) {
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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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supported = SUPPORTED_1000baseT_Full | SUPPORTED_Autoneg |
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SUPPORTED_MII;
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ethtool_convert_legacy_u32_to_link_mode(
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cmd->link_modes.supported,
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supported);
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ethtool_convert_legacy_u32_to_link_mode(
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cmd->link_modes.advertising,
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supported);
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cmd->base.speed = SPEED_1000;
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cmd->base.duplex = DUPLEX_FULL;
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cmd->base.port = PORT_MII;
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cmd->base.autoneg = AUTONEG_ENABLE;
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} else {
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supported = SUPPORTED_10000baseT_Full | SUPPORTED_FIBRE;
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ethtool_convert_legacy_u32_to_link_mode(
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cmd->link_modes.supported,
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supported);
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ethtool_convert_legacy_u32_to_link_mode(
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cmd->link_modes.advertising,
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supported);
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cmd->base.speed = SPEED_10000;
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cmd->base.duplex = DUPLEX_FULL;
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cmd->base.port = PORT_FIBRE;
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cmd->base.autoneg = AUTONEG_DISABLE;
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}
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return 0;
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}
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static int xgene_set_link_ksettings(struct net_device *ndev,
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const struct ethtool_link_ksettings *cmd)
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{
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struct xgene_enet_pdata *pdata = netdev_priv(ndev);
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struct phy_device *phydev = ndev->phydev;
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if (phy_interface_mode_is_rgmii(pdata->phy_mode)) {
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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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if (pdata->phy_mode == PHY_INTERFACE_MODE_SGMII) {
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if (pdata->mdio_driver) {
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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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}
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return -EINVAL;
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}
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static void xgene_get_strings(struct net_device *ndev, u32 stringset, u8 *data)
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{
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int i;
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u8 *p = data;
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if (stringset != ETH_SS_STATS)
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return;
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for (i = 0; i < XGENE_STATS_LEN; i++) {
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memcpy(p, gstrings_stats[i].name, ETH_GSTRING_LEN);
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p += ETH_GSTRING_LEN;
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}
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for (i = 0; i < XGENE_EXTD_STATS_LEN; i++) {
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memcpy(p, gstrings_extd_stats[i].name, ETH_GSTRING_LEN);
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p += ETH_GSTRING_LEN;
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}
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}
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static int xgene_get_sset_count(struct net_device *ndev, int sset)
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{
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if (sset != ETH_SS_STATS)
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return -EINVAL;
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return XGENE_STATS_LEN + XGENE_EXTD_STATS_LEN;
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}
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static void xgene_get_extd_stats(struct xgene_enet_pdata *pdata)
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{
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u32 rx_drop, tx_drop;
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u32 mask, tmp;
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int i;
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for (i = 0; i < XGENE_EXTD_STATS_LEN; i++) {
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tmp = xgene_enet_rd_stat(pdata, gstrings_extd_stats[i].addr);
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if (gstrings_extd_stats[i].mask) {
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mask = GENMASK(gstrings_extd_stats[i].mask - 1, 0);
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pdata->extd_stats[i] += (tmp & mask);
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}
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}
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if (pdata->phy_mode == PHY_INTERFACE_MODE_XGMII) {
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/* Errata 10GE_10 - SW should intepret RALN as 0 */
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pdata->extd_stats[RALN_IDX] = 0;
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} else {
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/* Errata ENET_15 - Fixes RFCS, RFLR, TFCS counter */
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pdata->extd_stats[RFCS_IDX] -= pdata->extd_stats[RALN_IDX];
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pdata->extd_stats[RFLR_IDX] -= pdata->extd_stats[RUND_IDX];
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pdata->extd_stats[TFCS_IDX] -= pdata->extd_stats[TFRG_IDX];
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}
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pdata->mac_ops->get_drop_cnt(pdata, &rx_drop, &tx_drop);
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pdata->extd_stats[RX_OVERRUN_IDX] += rx_drop;
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pdata->extd_stats[TX_UNDERRUN_IDX] += tx_drop;
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/* Errata 10GE_8 - Update Frame recovered from Errata 10GE_8/ENET_11 */
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pdata->extd_stats[FALSE_RFLR_IDX] = pdata->false_rflr;
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/* Errata ENET_15 - Jabber Frame recov'ed from Errata 10GE_10/ENET_15 */
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pdata->extd_stats[FALSE_RJBR_IDX] = pdata->vlan_rjbr;
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}
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int xgene_extd_stats_init(struct xgene_enet_pdata *pdata)
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{
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pdata->extd_stats = devm_kmalloc_array(&pdata->pdev->dev,
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XGENE_EXTD_STATS_LEN, sizeof(u64), GFP_KERNEL);
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if (!pdata->extd_stats)
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return -ENOMEM;
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xgene_get_extd_stats(pdata);
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memset(pdata->extd_stats, 0, XGENE_EXTD_STATS_LEN * sizeof(u64));
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return 0;
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}
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static void xgene_get_ethtool_stats(struct net_device *ndev,
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struct ethtool_stats *dummy,
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u64 *data)
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{
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struct xgene_enet_pdata *pdata = netdev_priv(ndev);
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struct rtnl_link_stats64 stats;
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int i;
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dev_get_stats(ndev, &stats);
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for (i = 0; i < XGENE_STATS_LEN; i++)
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data[i] = *(u64 *)((char *)&stats + gstrings_stats[i].offset);
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xgene_get_extd_stats(pdata);
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for (i = 0; i < XGENE_EXTD_STATS_LEN; i++)
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data[i + XGENE_STATS_LEN] = pdata->extd_stats[i];
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}
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static void xgene_get_pauseparam(struct net_device *ndev,
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struct ethtool_pauseparam *pp)
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{
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struct xgene_enet_pdata *pdata = netdev_priv(ndev);
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pp->autoneg = pdata->pause_autoneg;
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pp->tx_pause = pdata->tx_pause;
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pp->rx_pause = pdata->rx_pause;
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}
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static int xgene_set_pauseparam(struct net_device *ndev,
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struct ethtool_pauseparam *pp)
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{
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struct xgene_enet_pdata *pdata = netdev_priv(ndev);
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struct phy_device *phydev = ndev->phydev;
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u32 oldadv, newadv;
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if (phy_interface_mode_is_rgmii(pdata->phy_mode) ||
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pdata->phy_mode == PHY_INTERFACE_MODE_SGMII) {
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if (!phydev)
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return -EINVAL;
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if (!(phydev->supported & SUPPORTED_Pause) ||
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(!(phydev->supported & SUPPORTED_Asym_Pause) &&
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pp->rx_pause != pp->tx_pause))
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return -EINVAL;
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pdata->pause_autoneg = pp->autoneg;
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pdata->tx_pause = pp->tx_pause;
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pdata->rx_pause = pp->rx_pause;
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oldadv = phydev->advertising;
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newadv = oldadv & ~(ADVERTISED_Pause | ADVERTISED_Asym_Pause);
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if (pp->rx_pause)
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newadv |= ADVERTISED_Pause | ADVERTISED_Asym_Pause;
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if (pp->tx_pause)
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newadv ^= ADVERTISED_Asym_Pause;
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if (oldadv ^ newadv) {
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phydev->advertising = newadv;
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if (phydev->autoneg)
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return phy_start_aneg(phydev);
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if (!pp->autoneg) {
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pdata->mac_ops->flowctl_tx(pdata,
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pdata->tx_pause);
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pdata->mac_ops->flowctl_rx(pdata,
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pdata->rx_pause);
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}
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}
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} else {
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if (pp->autoneg)
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return -EINVAL;
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pdata->tx_pause = pp->tx_pause;
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pdata->rx_pause = pp->rx_pause;
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pdata->mac_ops->flowctl_tx(pdata, pdata->tx_pause);
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pdata->mac_ops->flowctl_rx(pdata, pdata->rx_pause);
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}
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return 0;
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}
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static const struct ethtool_ops xgene_ethtool_ops = {
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.get_drvinfo = xgene_get_drvinfo,
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.get_link = ethtool_op_get_link,
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.get_strings = xgene_get_strings,
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.get_sset_count = xgene_get_sset_count,
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.get_ethtool_stats = xgene_get_ethtool_stats,
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.get_link_ksettings = xgene_get_link_ksettings,
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.set_link_ksettings = xgene_set_link_ksettings,
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.get_pauseparam = xgene_get_pauseparam,
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.set_pauseparam = xgene_set_pauseparam
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};
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void xgene_enet_set_ethtool_ops(struct net_device *ndev)
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{
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ndev->ethtool_ops = &xgene_ethtool_ops;
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}
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