| // SPDX-License-Identifier: GPL-2.0-or-later |
| /* Applied Micro X-Gene SoC Ethernet Driver |
| * |
| * Copyright (c) 2014, Applied Micro Circuits Corporation |
| * Authors: Iyappan Subramanian <isubramanian@apm.com> |
| */ |
| |
| #include <linux/ethtool.h> |
| #include "xgene_enet_main.h" |
| |
| struct xgene_gstrings_stats { |
| char name[ETH_GSTRING_LEN]; |
| int offset; |
| u32 addr; |
| u32 mask; |
| }; |
| |
| #define XGENE_STAT(m) { #m, offsetof(struct rtnl_link_stats64, m) } |
| #define XGENE_EXTD_STAT(s, a, m) \ |
| { \ |
| .name = #s, \ |
| .addr = a ## _ADDR, \ |
| .mask = m \ |
| } |
| |
| static const struct xgene_gstrings_stats gstrings_stats[] = { |
| XGENE_STAT(rx_packets), |
| XGENE_STAT(tx_packets), |
| XGENE_STAT(rx_bytes), |
| XGENE_STAT(tx_bytes), |
| XGENE_STAT(rx_errors), |
| XGENE_STAT(tx_errors), |
| XGENE_STAT(rx_length_errors), |
| XGENE_STAT(rx_crc_errors), |
| XGENE_STAT(rx_frame_errors), |
| XGENE_STAT(rx_fifo_errors) |
| }; |
| |
| static const struct xgene_gstrings_stats gstrings_extd_stats[] = { |
| XGENE_EXTD_STAT(tx_rx_64b_frame_cntr, TR64, 31), |
| XGENE_EXTD_STAT(tx_rx_127b_frame_cntr, TR127, 31), |
| XGENE_EXTD_STAT(tx_rx_255b_frame_cntr, TR255, 31), |
| XGENE_EXTD_STAT(tx_rx_511b_frame_cntr, TR511, 31), |
| XGENE_EXTD_STAT(tx_rx_1023b_frame_cntr, TR1K, 31), |
| XGENE_EXTD_STAT(tx_rx_1518b_frame_cntr, TRMAX, 31), |
| XGENE_EXTD_STAT(tx_rx_1522b_frame_cntr, TRMGV, 31), |
| XGENE_EXTD_STAT(rx_fcs_error_cntr, RFCS, 16), |
| XGENE_EXTD_STAT(rx_multicast_pkt_cntr, RMCA, 31), |
| XGENE_EXTD_STAT(rx_broadcast_pkt_cntr, RBCA, 31), |
| XGENE_EXTD_STAT(rx_ctrl_frame_pkt_cntr, RXCF, 16), |
| XGENE_EXTD_STAT(rx_pause_frame_pkt_cntr, RXPF, 16), |
| XGENE_EXTD_STAT(rx_unk_opcode_cntr, RXUO, 16), |
| XGENE_EXTD_STAT(rx_align_err_cntr, RALN, 16), |
| XGENE_EXTD_STAT(rx_frame_len_err_cntr, RFLR, 16), |
| XGENE_EXTD_STAT(rx_frame_len_err_recov_cntr, DUMP, 0), |
| XGENE_EXTD_STAT(rx_code_err_cntr, RCDE, 16), |
| XGENE_EXTD_STAT(rx_carrier_sense_err_cntr, RCSE, 16), |
| XGENE_EXTD_STAT(rx_undersize_pkt_cntr, RUND, 16), |
| XGENE_EXTD_STAT(rx_oversize_pkt_cntr, ROVR, 16), |
| XGENE_EXTD_STAT(rx_fragments_cntr, RFRG, 16), |
| XGENE_EXTD_STAT(rx_jabber_cntr, RJBR, 16), |
| XGENE_EXTD_STAT(rx_jabber_recov_cntr, DUMP, 0), |
| XGENE_EXTD_STAT(rx_dropped_pkt_cntr, RDRP, 16), |
| XGENE_EXTD_STAT(rx_overrun_cntr, DUMP, 0), |
| XGENE_EXTD_STAT(tx_multicast_pkt_cntr, TMCA, 31), |
| XGENE_EXTD_STAT(tx_broadcast_pkt_cntr, TBCA, 31), |
| XGENE_EXTD_STAT(tx_pause_ctrl_frame_cntr, TXPF, 16), |
| XGENE_EXTD_STAT(tx_defer_pkt_cntr, TDFR, 31), |
| XGENE_EXTD_STAT(tx_excv_defer_pkt_cntr, TEDF, 31), |
| XGENE_EXTD_STAT(tx_single_col_pkt_cntr, TSCL, 31), |
| XGENE_EXTD_STAT(tx_multi_col_pkt_cntr, TMCL, 31), |
| XGENE_EXTD_STAT(tx_late_col_pkt_cntr, TLCL, 31), |
| XGENE_EXTD_STAT(tx_excv_col_pkt_cntr, TXCL, 31), |
| XGENE_EXTD_STAT(tx_total_col_cntr, TNCL, 31), |
| XGENE_EXTD_STAT(tx_pause_frames_hnrd_cntr, TPFH, 16), |
| XGENE_EXTD_STAT(tx_drop_frame_cntr, TDRP, 16), |
| XGENE_EXTD_STAT(tx_jabber_frame_cntr, TJBR, 12), |
| XGENE_EXTD_STAT(tx_fcs_error_cntr, TFCS, 12), |
| XGENE_EXTD_STAT(tx_ctrl_frame_cntr, TXCF, 12), |
| XGENE_EXTD_STAT(tx_oversize_frame_cntr, TOVR, 12), |
| XGENE_EXTD_STAT(tx_undersize_frame_cntr, TUND, 12), |
| XGENE_EXTD_STAT(tx_fragments_cntr, TFRG, 12), |
| XGENE_EXTD_STAT(tx_underrun_cntr, DUMP, 0) |
| }; |
| |
| #define XGENE_STATS_LEN ARRAY_SIZE(gstrings_stats) |
| #define XGENE_EXTD_STATS_LEN ARRAY_SIZE(gstrings_extd_stats) |
| #define RFCS_IDX 7 |
| #define RALN_IDX 13 |
| #define RFLR_IDX 14 |
| #define FALSE_RFLR_IDX 15 |
| #define RUND_IDX 18 |
| #define FALSE_RJBR_IDX 22 |
| #define RX_OVERRUN_IDX 24 |
| #define TFCS_IDX 38 |
| #define TFRG_IDX 42 |
| #define TX_UNDERRUN_IDX 43 |
| |
| static void xgene_get_drvinfo(struct net_device *ndev, |
| struct ethtool_drvinfo *info) |
| { |
| struct xgene_enet_pdata *pdata = netdev_priv(ndev); |
| struct platform_device *pdev = pdata->pdev; |
| |
| strcpy(info->driver, "xgene_enet"); |
| strcpy(info->version, XGENE_DRV_VERSION); |
| snprintf(info->fw_version, ETHTOOL_FWVERS_LEN, "N/A"); |
| sprintf(info->bus_info, "%s", pdev->name); |
| } |
| |
| static int xgene_get_link_ksettings(struct net_device *ndev, |
| struct ethtool_link_ksettings *cmd) |
| { |
| struct xgene_enet_pdata *pdata = netdev_priv(ndev); |
| struct phy_device *phydev = ndev->phydev; |
| u32 supported; |
| |
| if (phy_interface_mode_is_rgmii(pdata->phy_mode)) { |
| if (phydev == NULL) |
| return -ENODEV; |
| |
| phy_ethtool_ksettings_get(phydev, cmd); |
| |
| return 0; |
| } else if (pdata->phy_mode == PHY_INTERFACE_MODE_SGMII) { |
| if (pdata->mdio_driver) { |
| if (!phydev) |
| return -ENODEV; |
| |
| phy_ethtool_ksettings_get(phydev, cmd); |
| |
| return 0; |
| } |
| |
| supported = SUPPORTED_1000baseT_Full | SUPPORTED_Autoneg | |
| SUPPORTED_MII; |
| ethtool_convert_legacy_u32_to_link_mode( |
| cmd->link_modes.supported, |
| supported); |
| ethtool_convert_legacy_u32_to_link_mode( |
| cmd->link_modes.advertising, |
| supported); |
| |
| cmd->base.speed = SPEED_1000; |
| cmd->base.duplex = DUPLEX_FULL; |
| cmd->base.port = PORT_MII; |
| cmd->base.autoneg = AUTONEG_ENABLE; |
| } else { |
| supported = SUPPORTED_10000baseT_Full | SUPPORTED_FIBRE; |
| ethtool_convert_legacy_u32_to_link_mode( |
| cmd->link_modes.supported, |
| supported); |
| ethtool_convert_legacy_u32_to_link_mode( |
| cmd->link_modes.advertising, |
| supported); |
| |
| cmd->base.speed = SPEED_10000; |
| cmd->base.duplex = DUPLEX_FULL; |
| cmd->base.port = PORT_FIBRE; |
| cmd->base.autoneg = AUTONEG_DISABLE; |
| } |
| |
| return 0; |
| } |
| |
| static int xgene_set_link_ksettings(struct net_device *ndev, |
| const struct ethtool_link_ksettings *cmd) |
| { |
| struct xgene_enet_pdata *pdata = netdev_priv(ndev); |
| struct phy_device *phydev = ndev->phydev; |
| |
| if (phy_interface_mode_is_rgmii(pdata->phy_mode)) { |
| if (!phydev) |
| return -ENODEV; |
| |
| return phy_ethtool_ksettings_set(phydev, cmd); |
| } |
| |
| if (pdata->phy_mode == PHY_INTERFACE_MODE_SGMII) { |
| if (pdata->mdio_driver) { |
| if (!phydev) |
| return -ENODEV; |
| |
| return phy_ethtool_ksettings_set(phydev, cmd); |
| } |
| } |
| |
| return -EINVAL; |
| } |
| |
| static void xgene_get_strings(struct net_device *ndev, u32 stringset, u8 *data) |
| { |
| int i; |
| u8 *p = data; |
| |
| if (stringset != ETH_SS_STATS) |
| return; |
| |
| for (i = 0; i < XGENE_STATS_LEN; i++) { |
| memcpy(p, gstrings_stats[i].name, ETH_GSTRING_LEN); |
| p += ETH_GSTRING_LEN; |
| } |
| |
| for (i = 0; i < XGENE_EXTD_STATS_LEN; i++) { |
| memcpy(p, gstrings_extd_stats[i].name, ETH_GSTRING_LEN); |
| p += ETH_GSTRING_LEN; |
| } |
| } |
| |
| static int xgene_get_sset_count(struct net_device *ndev, int sset) |
| { |
| if (sset != ETH_SS_STATS) |
| return -EINVAL; |
| |
| return XGENE_STATS_LEN + XGENE_EXTD_STATS_LEN; |
| } |
| |
| static void xgene_get_extd_stats(struct xgene_enet_pdata *pdata) |
| { |
| u32 rx_drop, tx_drop; |
| u32 mask, tmp; |
| int i; |
| |
| for (i = 0; i < XGENE_EXTD_STATS_LEN; i++) { |
| tmp = xgene_enet_rd_stat(pdata, gstrings_extd_stats[i].addr); |
| if (gstrings_extd_stats[i].mask) { |
| mask = GENMASK(gstrings_extd_stats[i].mask - 1, 0); |
| pdata->extd_stats[i] += (tmp & mask); |
| } |
| } |
| |
| if (pdata->phy_mode == PHY_INTERFACE_MODE_XGMII) { |
| /* Errata 10GE_10 - SW should intepret RALN as 0 */ |
| pdata->extd_stats[RALN_IDX] = 0; |
| } else { |
| /* Errata ENET_15 - Fixes RFCS, RFLR, TFCS counter */ |
| pdata->extd_stats[RFCS_IDX] -= pdata->extd_stats[RALN_IDX]; |
| pdata->extd_stats[RFLR_IDX] -= pdata->extd_stats[RUND_IDX]; |
| pdata->extd_stats[TFCS_IDX] -= pdata->extd_stats[TFRG_IDX]; |
| } |
| |
| pdata->mac_ops->get_drop_cnt(pdata, &rx_drop, &tx_drop); |
| pdata->extd_stats[RX_OVERRUN_IDX] += rx_drop; |
| pdata->extd_stats[TX_UNDERRUN_IDX] += tx_drop; |
| |
| /* Errata 10GE_8 - Update Frame recovered from Errata 10GE_8/ENET_11 */ |
| pdata->extd_stats[FALSE_RFLR_IDX] = pdata->false_rflr; |
| /* Errata ENET_15 - Jabber Frame recov'ed from Errata 10GE_10/ENET_15 */ |
| pdata->extd_stats[FALSE_RJBR_IDX] = pdata->vlan_rjbr; |
| } |
| |
| int xgene_extd_stats_init(struct xgene_enet_pdata *pdata) |
| { |
| pdata->extd_stats = devm_kmalloc_array(&pdata->pdev->dev, |
| XGENE_EXTD_STATS_LEN, sizeof(u64), GFP_KERNEL); |
| if (!pdata->extd_stats) |
| return -ENOMEM; |
| |
| xgene_get_extd_stats(pdata); |
| memset(pdata->extd_stats, 0, XGENE_EXTD_STATS_LEN * sizeof(u64)); |
| |
| return 0; |
| } |
| |
| static void xgene_get_ethtool_stats(struct net_device *ndev, |
| struct ethtool_stats *dummy, |
| u64 *data) |
| { |
| struct xgene_enet_pdata *pdata = netdev_priv(ndev); |
| struct rtnl_link_stats64 stats; |
| int i; |
| |
| dev_get_stats(ndev, &stats); |
| for (i = 0; i < XGENE_STATS_LEN; i++) |
| data[i] = *(u64 *)((char *)&stats + gstrings_stats[i].offset); |
| |
| xgene_get_extd_stats(pdata); |
| for (i = 0; i < XGENE_EXTD_STATS_LEN; i++) |
| data[i + XGENE_STATS_LEN] = pdata->extd_stats[i]; |
| } |
| |
| static void xgene_get_pauseparam(struct net_device *ndev, |
| struct ethtool_pauseparam *pp) |
| { |
| struct xgene_enet_pdata *pdata = netdev_priv(ndev); |
| |
| pp->autoneg = pdata->pause_autoneg; |
| pp->tx_pause = pdata->tx_pause; |
| pp->rx_pause = pdata->rx_pause; |
| } |
| |
| static int xgene_set_pauseparam(struct net_device *ndev, |
| struct ethtool_pauseparam *pp) |
| { |
| struct xgene_enet_pdata *pdata = netdev_priv(ndev); |
| struct phy_device *phydev = ndev->phydev; |
| |
| if (phy_interface_mode_is_rgmii(pdata->phy_mode) || |
| pdata->phy_mode == PHY_INTERFACE_MODE_SGMII) { |
| if (!phydev) |
| return -EINVAL; |
| |
| if (!phy_validate_pause(phydev, pp)) |
| return -EINVAL; |
| |
| pdata->pause_autoneg = pp->autoneg; |
| pdata->tx_pause = pp->tx_pause; |
| pdata->rx_pause = pp->rx_pause; |
| |
| phy_set_asym_pause(phydev, pp->rx_pause, pp->tx_pause); |
| |
| if (!pp->autoneg) { |
| pdata->mac_ops->flowctl_tx(pdata, pdata->tx_pause); |
| pdata->mac_ops->flowctl_rx(pdata, pdata->rx_pause); |
| } |
| } else { |
| if (pp->autoneg) |
| return -EINVAL; |
| |
| pdata->tx_pause = pp->tx_pause; |
| pdata->rx_pause = pp->rx_pause; |
| |
| pdata->mac_ops->flowctl_tx(pdata, pdata->tx_pause); |
| pdata->mac_ops->flowctl_rx(pdata, pdata->rx_pause); |
| } |
| |
| return 0; |
| } |
| |
| static const struct ethtool_ops xgene_ethtool_ops = { |
| .get_drvinfo = xgene_get_drvinfo, |
| .get_link = ethtool_op_get_link, |
| .get_strings = xgene_get_strings, |
| .get_sset_count = xgene_get_sset_count, |
| .get_ethtool_stats = xgene_get_ethtool_stats, |
| .get_link_ksettings = xgene_get_link_ksettings, |
| .set_link_ksettings = xgene_set_link_ksettings, |
| .get_pauseparam = xgene_get_pauseparam, |
| .set_pauseparam = xgene_set_pauseparam |
| }; |
| |
| void xgene_enet_set_ethtool_ops(struct net_device *ndev) |
| { |
| ndev->ethtool_ops = &xgene_ethtool_ops; |
| } |
