1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* Applied Micro X-Gene SoC Ethernet Driver 3 * 4 * Copyright (c) 2014, Applied Micro Circuits Corporation 5 * Authors: Iyappan Subramanian <isubramanian@apm.com> 6 */ 7 8 #include <linux/ethtool.h> 9 #include "xgene_enet_main.h" 10 11 struct xgene_gstrings_stats { 12 char name[ETH_GSTRING_LEN]; 13 int offset; 14 u32 addr; 15 u32 mask; 16 }; 17 18 #define XGENE_STAT(m) { #m, offsetof(struct rtnl_link_stats64, m) } 19 #define XGENE_EXTD_STAT(s, a, m) \ 20 { \ 21 .name = #s, \ 22 .addr = a ## _ADDR, \ 23 .mask = m \ 24 } 25 26 static const struct xgene_gstrings_stats gstrings_stats[] = { 27 XGENE_STAT(rx_packets), 28 XGENE_STAT(tx_packets), 29 XGENE_STAT(rx_bytes), 30 XGENE_STAT(tx_bytes), 31 XGENE_STAT(rx_errors), 32 XGENE_STAT(tx_errors), 33 XGENE_STAT(rx_length_errors), 34 XGENE_STAT(rx_crc_errors), 35 XGENE_STAT(rx_frame_errors), 36 XGENE_STAT(rx_fifo_errors) 37 }; 38 39 static const struct xgene_gstrings_stats gstrings_extd_stats[] = { 40 XGENE_EXTD_STAT(tx_rx_64b_frame_cntr, TR64, 31), 41 XGENE_EXTD_STAT(tx_rx_127b_frame_cntr, TR127, 31), 42 XGENE_EXTD_STAT(tx_rx_255b_frame_cntr, TR255, 31), 43 XGENE_EXTD_STAT(tx_rx_511b_frame_cntr, TR511, 31), 44 XGENE_EXTD_STAT(tx_rx_1023b_frame_cntr, TR1K, 31), 45 XGENE_EXTD_STAT(tx_rx_1518b_frame_cntr, TRMAX, 31), 46 XGENE_EXTD_STAT(tx_rx_1522b_frame_cntr, TRMGV, 31), 47 XGENE_EXTD_STAT(rx_fcs_error_cntr, RFCS, 16), 48 XGENE_EXTD_STAT(rx_multicast_pkt_cntr, RMCA, 31), 49 XGENE_EXTD_STAT(rx_broadcast_pkt_cntr, RBCA, 31), 50 XGENE_EXTD_STAT(rx_ctrl_frame_pkt_cntr, RXCF, 16), 51 XGENE_EXTD_STAT(rx_pause_frame_pkt_cntr, RXPF, 16), 52 XGENE_EXTD_STAT(rx_unk_opcode_cntr, RXUO, 16), 53 XGENE_EXTD_STAT(rx_align_err_cntr, RALN, 16), 54 XGENE_EXTD_STAT(rx_frame_len_err_cntr, RFLR, 16), 55 XGENE_EXTD_STAT(rx_frame_len_err_recov_cntr, DUMP, 0), 56 XGENE_EXTD_STAT(rx_code_err_cntr, RCDE, 16), 57 XGENE_EXTD_STAT(rx_carrier_sense_err_cntr, RCSE, 16), 58 XGENE_EXTD_STAT(rx_undersize_pkt_cntr, RUND, 16), 59 XGENE_EXTD_STAT(rx_oversize_pkt_cntr, ROVR, 16), 60 XGENE_EXTD_STAT(rx_fragments_cntr, RFRG, 16), 61 XGENE_EXTD_STAT(rx_jabber_cntr, RJBR, 16), 62 XGENE_EXTD_STAT(rx_jabber_recov_cntr, DUMP, 0), 63 XGENE_EXTD_STAT(rx_dropped_pkt_cntr, RDRP, 16), 64 XGENE_EXTD_STAT(rx_overrun_cntr, DUMP, 0), 65 XGENE_EXTD_STAT(tx_multicast_pkt_cntr, TMCA, 31), 66 XGENE_EXTD_STAT(tx_broadcast_pkt_cntr, TBCA, 31), 67 XGENE_EXTD_STAT(tx_pause_ctrl_frame_cntr, TXPF, 16), 68 XGENE_EXTD_STAT(tx_defer_pkt_cntr, TDFR, 31), 69 XGENE_EXTD_STAT(tx_excv_defer_pkt_cntr, TEDF, 31), 70 XGENE_EXTD_STAT(tx_single_col_pkt_cntr, TSCL, 31), 71 XGENE_EXTD_STAT(tx_multi_col_pkt_cntr, TMCL, 31), 72 XGENE_EXTD_STAT(tx_late_col_pkt_cntr, TLCL, 31), 73 XGENE_EXTD_STAT(tx_excv_col_pkt_cntr, TXCL, 31), 74 XGENE_EXTD_STAT(tx_total_col_cntr, TNCL, 31), 75 XGENE_EXTD_STAT(tx_pause_frames_hnrd_cntr, TPFH, 16), 76 XGENE_EXTD_STAT(tx_drop_frame_cntr, TDRP, 16), 77 XGENE_EXTD_STAT(tx_jabber_frame_cntr, TJBR, 12), 78 XGENE_EXTD_STAT(tx_fcs_error_cntr, TFCS, 12), 79 XGENE_EXTD_STAT(tx_ctrl_frame_cntr, TXCF, 12), 80 XGENE_EXTD_STAT(tx_oversize_frame_cntr, TOVR, 12), 81 XGENE_EXTD_STAT(tx_undersize_frame_cntr, TUND, 12), 82 XGENE_EXTD_STAT(tx_fragments_cntr, TFRG, 12), 83 XGENE_EXTD_STAT(tx_underrun_cntr, DUMP, 0) 84 }; 85 86 #define XGENE_STATS_LEN ARRAY_SIZE(gstrings_stats) 87 #define XGENE_EXTD_STATS_LEN ARRAY_SIZE(gstrings_extd_stats) 88 #define RFCS_IDX 7 89 #define RALN_IDX 13 90 #define RFLR_IDX 14 91 #define FALSE_RFLR_IDX 15 92 #define RUND_IDX 18 93 #define FALSE_RJBR_IDX 22 94 #define RX_OVERRUN_IDX 24 95 #define TFCS_IDX 38 96 #define TFRG_IDX 42 97 #define TX_UNDERRUN_IDX 43 98 99 static void xgene_get_drvinfo(struct net_device *ndev, 100 struct ethtool_drvinfo *info) 101 { 102 struct xgene_enet_pdata *pdata = netdev_priv(ndev); 103 struct platform_device *pdev = pdata->pdev; 104 105 strcpy(info->driver, "xgene_enet"); 106 sprintf(info->bus_info, "%s", pdev->name); 107 } 108 109 static int xgene_get_link_ksettings(struct net_device *ndev, 110 struct ethtool_link_ksettings *cmd) 111 { 112 struct xgene_enet_pdata *pdata = netdev_priv(ndev); 113 struct phy_device *phydev = ndev->phydev; 114 u32 supported; 115 116 if (phy_interface_mode_is_rgmii(pdata->phy_mode)) { 117 if (phydev == NULL) 118 return -ENODEV; 119 120 phy_ethtool_ksettings_get(phydev, cmd); 121 122 return 0; 123 } else if (pdata->phy_mode == PHY_INTERFACE_MODE_SGMII) { 124 if (pdata->mdio_driver) { 125 if (!phydev) 126 return -ENODEV; 127 128 phy_ethtool_ksettings_get(phydev, cmd); 129 130 return 0; 131 } 132 133 supported = SUPPORTED_1000baseT_Full | SUPPORTED_Autoneg | 134 SUPPORTED_MII; 135 ethtool_convert_legacy_u32_to_link_mode( 136 cmd->link_modes.supported, 137 supported); 138 ethtool_convert_legacy_u32_to_link_mode( 139 cmd->link_modes.advertising, 140 supported); 141 142 cmd->base.speed = SPEED_1000; 143 cmd->base.duplex = DUPLEX_FULL; 144 cmd->base.port = PORT_MII; 145 cmd->base.autoneg = AUTONEG_ENABLE; 146 } else { 147 supported = SUPPORTED_10000baseT_Full | SUPPORTED_FIBRE; 148 ethtool_convert_legacy_u32_to_link_mode( 149 cmd->link_modes.supported, 150 supported); 151 ethtool_convert_legacy_u32_to_link_mode( 152 cmd->link_modes.advertising, 153 supported); 154 155 cmd->base.speed = SPEED_10000; 156 cmd->base.duplex = DUPLEX_FULL; 157 cmd->base.port = PORT_FIBRE; 158 cmd->base.autoneg = AUTONEG_DISABLE; 159 } 160 161 return 0; 162 } 163 164 static int xgene_set_link_ksettings(struct net_device *ndev, 165 const struct ethtool_link_ksettings *cmd) 166 { 167 struct xgene_enet_pdata *pdata = netdev_priv(ndev); 168 struct phy_device *phydev = ndev->phydev; 169 170 if (phy_interface_mode_is_rgmii(pdata->phy_mode)) { 171 if (!phydev) 172 return -ENODEV; 173 174 return phy_ethtool_ksettings_set(phydev, cmd); 175 } 176 177 if (pdata->phy_mode == PHY_INTERFACE_MODE_SGMII) { 178 if (pdata->mdio_driver) { 179 if (!phydev) 180 return -ENODEV; 181 182 return phy_ethtool_ksettings_set(phydev, cmd); 183 } 184 } 185 186 return -EINVAL; 187 } 188 189 static void xgene_get_strings(struct net_device *ndev, u32 stringset, u8 *data) 190 { 191 int i; 192 u8 *p = data; 193 194 if (stringset != ETH_SS_STATS) 195 return; 196 197 for (i = 0; i < XGENE_STATS_LEN; i++) { 198 memcpy(p, gstrings_stats[i].name, ETH_GSTRING_LEN); 199 p += ETH_GSTRING_LEN; 200 } 201 202 for (i = 0; i < XGENE_EXTD_STATS_LEN; i++) { 203 memcpy(p, gstrings_extd_stats[i].name, ETH_GSTRING_LEN); 204 p += ETH_GSTRING_LEN; 205 } 206 } 207 208 static int xgene_get_sset_count(struct net_device *ndev, int sset) 209 { 210 if (sset != ETH_SS_STATS) 211 return -EINVAL; 212 213 return XGENE_STATS_LEN + XGENE_EXTD_STATS_LEN; 214 } 215 216 static void xgene_get_extd_stats(struct xgene_enet_pdata *pdata) 217 { 218 u32 rx_drop, tx_drop; 219 u32 mask, tmp; 220 int i; 221 222 for (i = 0; i < XGENE_EXTD_STATS_LEN; i++) { 223 tmp = xgene_enet_rd_stat(pdata, gstrings_extd_stats[i].addr); 224 if (gstrings_extd_stats[i].mask) { 225 mask = GENMASK(gstrings_extd_stats[i].mask - 1, 0); 226 pdata->extd_stats[i] += (tmp & mask); 227 } 228 } 229 230 if (pdata->phy_mode == PHY_INTERFACE_MODE_XGMII) { 231 /* Errata 10GE_10 - SW should intepret RALN as 0 */ 232 pdata->extd_stats[RALN_IDX] = 0; 233 } else { 234 /* Errata ENET_15 - Fixes RFCS, RFLR, TFCS counter */ 235 pdata->extd_stats[RFCS_IDX] -= pdata->extd_stats[RALN_IDX]; 236 pdata->extd_stats[RFLR_IDX] -= pdata->extd_stats[RUND_IDX]; 237 pdata->extd_stats[TFCS_IDX] -= pdata->extd_stats[TFRG_IDX]; 238 } 239 240 pdata->mac_ops->get_drop_cnt(pdata, &rx_drop, &tx_drop); 241 pdata->extd_stats[RX_OVERRUN_IDX] += rx_drop; 242 pdata->extd_stats[TX_UNDERRUN_IDX] += tx_drop; 243 244 /* Errata 10GE_8 - Update Frame recovered from Errata 10GE_8/ENET_11 */ 245 pdata->extd_stats[FALSE_RFLR_IDX] = pdata->false_rflr; 246 /* Errata ENET_15 - Jabber Frame recov'ed from Errata 10GE_10/ENET_15 */ 247 pdata->extd_stats[FALSE_RJBR_IDX] = pdata->vlan_rjbr; 248 } 249 250 int xgene_extd_stats_init(struct xgene_enet_pdata *pdata) 251 { 252 pdata->extd_stats = devm_kmalloc_array(&pdata->pdev->dev, 253 XGENE_EXTD_STATS_LEN, sizeof(u64), GFP_KERNEL); 254 if (!pdata->extd_stats) 255 return -ENOMEM; 256 257 xgene_get_extd_stats(pdata); 258 memset(pdata->extd_stats, 0, XGENE_EXTD_STATS_LEN * sizeof(u64)); 259 260 return 0; 261 } 262 263 static void xgene_get_ethtool_stats(struct net_device *ndev, 264 struct ethtool_stats *dummy, 265 u64 *data) 266 { 267 struct xgene_enet_pdata *pdata = netdev_priv(ndev); 268 struct rtnl_link_stats64 stats; 269 int i; 270 271 dev_get_stats(ndev, &stats); 272 for (i = 0; i < XGENE_STATS_LEN; i++) 273 data[i] = *(u64 *)((char *)&stats + gstrings_stats[i].offset); 274 275 xgene_get_extd_stats(pdata); 276 for (i = 0; i < XGENE_EXTD_STATS_LEN; i++) 277 data[i + XGENE_STATS_LEN] = pdata->extd_stats[i]; 278 } 279 280 static void xgene_get_pauseparam(struct net_device *ndev, 281 struct ethtool_pauseparam *pp) 282 { 283 struct xgene_enet_pdata *pdata = netdev_priv(ndev); 284 285 pp->autoneg = pdata->pause_autoneg; 286 pp->tx_pause = pdata->tx_pause; 287 pp->rx_pause = pdata->rx_pause; 288 } 289 290 static int xgene_set_pauseparam(struct net_device *ndev, 291 struct ethtool_pauseparam *pp) 292 { 293 struct xgene_enet_pdata *pdata = netdev_priv(ndev); 294 struct phy_device *phydev = ndev->phydev; 295 296 if (phy_interface_mode_is_rgmii(pdata->phy_mode) || 297 pdata->phy_mode == PHY_INTERFACE_MODE_SGMII) { 298 if (!phydev) 299 return -EINVAL; 300 301 if (!phy_validate_pause(phydev, pp)) 302 return -EINVAL; 303 304 pdata->pause_autoneg = pp->autoneg; 305 pdata->tx_pause = pp->tx_pause; 306 pdata->rx_pause = pp->rx_pause; 307 308 phy_set_asym_pause(phydev, pp->rx_pause, pp->tx_pause); 309 310 if (!pp->autoneg) { 311 pdata->mac_ops->flowctl_tx(pdata, pdata->tx_pause); 312 pdata->mac_ops->flowctl_rx(pdata, pdata->rx_pause); 313 } 314 } else { 315 if (pp->autoneg) 316 return -EINVAL; 317 318 pdata->tx_pause = pp->tx_pause; 319 pdata->rx_pause = pp->rx_pause; 320 321 pdata->mac_ops->flowctl_tx(pdata, pdata->tx_pause); 322 pdata->mac_ops->flowctl_rx(pdata, pdata->rx_pause); 323 } 324 325 return 0; 326 } 327 328 static const struct ethtool_ops xgene_ethtool_ops = { 329 .get_drvinfo = xgene_get_drvinfo, 330 .get_link = ethtool_op_get_link, 331 .get_strings = xgene_get_strings, 332 .get_sset_count = xgene_get_sset_count, 333 .get_ethtool_stats = xgene_get_ethtool_stats, 334 .get_link_ksettings = xgene_get_link_ksettings, 335 .set_link_ksettings = xgene_set_link_ksettings, 336 .get_pauseparam = xgene_get_pauseparam, 337 .set_pauseparam = xgene_set_pauseparam 338 }; 339 340 void xgene_enet_set_ethtool_ops(struct net_device *ndev) 341 { 342 ndev->ethtool_ops = &xgene_ethtool_ops; 343 } 344