1 /* Applied Micro X-Gene SoC Ethernet Driver 2 * 3 * Copyright (c) 2014, Applied Micro Circuits Corporation 4 * Authors: Iyappan Subramanian <isubramanian@apm.com> 5 * 6 * This program is free software; you can redistribute it and/or modify it 7 * under the terms of the GNU General Public License as published by the 8 * Free Software Foundation; either version 2 of the License, or (at your 9 * option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program. If not, see <http://www.gnu.org/licenses/>. 18 */ 19 20 #include <linux/ethtool.h> 21 #include "xgene_enet_main.h" 22 23 struct xgene_gstrings_stats { 24 char name[ETH_GSTRING_LEN]; 25 int offset; 26 u32 addr; 27 u32 mask; 28 }; 29 30 #define XGENE_STAT(m) { #m, offsetof(struct rtnl_link_stats64, m) } 31 #define XGENE_EXTD_STAT(s, a, m) \ 32 { \ 33 .name = #s, \ 34 .addr = a ## _ADDR, \ 35 .mask = m \ 36 } 37 38 static const struct xgene_gstrings_stats gstrings_stats[] = { 39 XGENE_STAT(rx_packets), 40 XGENE_STAT(tx_packets), 41 XGENE_STAT(rx_bytes), 42 XGENE_STAT(tx_bytes), 43 XGENE_STAT(rx_errors), 44 XGENE_STAT(tx_errors), 45 XGENE_STAT(rx_length_errors), 46 XGENE_STAT(rx_crc_errors), 47 XGENE_STAT(rx_frame_errors), 48 XGENE_STAT(rx_fifo_errors) 49 }; 50 51 static const struct xgene_gstrings_stats gstrings_extd_stats[] = { 52 XGENE_EXTD_STAT(tx_rx_64b_frame_cntr, TR64, 31), 53 XGENE_EXTD_STAT(tx_rx_127b_frame_cntr, TR127, 31), 54 XGENE_EXTD_STAT(tx_rx_255b_frame_cntr, TR255, 31), 55 XGENE_EXTD_STAT(tx_rx_511b_frame_cntr, TR511, 31), 56 XGENE_EXTD_STAT(tx_rx_1023b_frame_cntr, TR1K, 31), 57 XGENE_EXTD_STAT(tx_rx_1518b_frame_cntr, TRMAX, 31), 58 XGENE_EXTD_STAT(tx_rx_1522b_frame_cntr, TRMGV, 31), 59 XGENE_EXTD_STAT(rx_fcs_error_cntr, RFCS, 16), 60 XGENE_EXTD_STAT(rx_multicast_pkt_cntr, RMCA, 31), 61 XGENE_EXTD_STAT(rx_broadcast_pkt_cntr, RBCA, 31), 62 XGENE_EXTD_STAT(rx_ctrl_frame_pkt_cntr, RXCF, 16), 63 XGENE_EXTD_STAT(rx_pause_frame_pkt_cntr, RXPF, 16), 64 XGENE_EXTD_STAT(rx_unk_opcode_cntr, RXUO, 16), 65 XGENE_EXTD_STAT(rx_align_err_cntr, RALN, 16), 66 XGENE_EXTD_STAT(rx_frame_len_err_cntr, RFLR, 16), 67 XGENE_EXTD_STAT(rx_frame_len_err_recov_cntr, DUMP, 0), 68 XGENE_EXTD_STAT(rx_code_err_cntr, RCDE, 16), 69 XGENE_EXTD_STAT(rx_carrier_sense_err_cntr, RCSE, 16), 70 XGENE_EXTD_STAT(rx_undersize_pkt_cntr, RUND, 16), 71 XGENE_EXTD_STAT(rx_oversize_pkt_cntr, ROVR, 16), 72 XGENE_EXTD_STAT(rx_fragments_cntr, RFRG, 16), 73 XGENE_EXTD_STAT(rx_jabber_cntr, RJBR, 16), 74 XGENE_EXTD_STAT(rx_jabber_recov_cntr, DUMP, 0), 75 XGENE_EXTD_STAT(rx_dropped_pkt_cntr, RDRP, 16), 76 XGENE_EXTD_STAT(rx_overrun_cntr, DUMP, 0), 77 XGENE_EXTD_STAT(tx_multicast_pkt_cntr, TMCA, 31), 78 XGENE_EXTD_STAT(tx_broadcast_pkt_cntr, TBCA, 31), 79 XGENE_EXTD_STAT(tx_pause_ctrl_frame_cntr, TXPF, 16), 80 XGENE_EXTD_STAT(tx_defer_pkt_cntr, TDFR, 31), 81 XGENE_EXTD_STAT(tx_excv_defer_pkt_cntr, TEDF, 31), 82 XGENE_EXTD_STAT(tx_single_col_pkt_cntr, TSCL, 31), 83 XGENE_EXTD_STAT(tx_multi_col_pkt_cntr, TMCL, 31), 84 XGENE_EXTD_STAT(tx_late_col_pkt_cntr, TLCL, 31), 85 XGENE_EXTD_STAT(tx_excv_col_pkt_cntr, TXCL, 31), 86 XGENE_EXTD_STAT(tx_total_col_cntr, TNCL, 31), 87 XGENE_EXTD_STAT(tx_pause_frames_hnrd_cntr, TPFH, 16), 88 XGENE_EXTD_STAT(tx_drop_frame_cntr, TDRP, 16), 89 XGENE_EXTD_STAT(tx_jabber_frame_cntr, TJBR, 12), 90 XGENE_EXTD_STAT(tx_fcs_error_cntr, TFCS, 12), 91 XGENE_EXTD_STAT(tx_ctrl_frame_cntr, TXCF, 12), 92 XGENE_EXTD_STAT(tx_oversize_frame_cntr, TOVR, 12), 93 XGENE_EXTD_STAT(tx_undersize_frame_cntr, TUND, 12), 94 XGENE_EXTD_STAT(tx_fragments_cntr, TFRG, 12), 95 XGENE_EXTD_STAT(tx_underrun_cntr, DUMP, 0) 96 }; 97 98 #define XGENE_STATS_LEN ARRAY_SIZE(gstrings_stats) 99 #define XGENE_EXTD_STATS_LEN ARRAY_SIZE(gstrings_extd_stats) 100 #define RFCS_IDX 7 101 #define RALN_IDX 13 102 #define RFLR_IDX 14 103 #define FALSE_RFLR_IDX 15 104 #define RUND_IDX 18 105 #define FALSE_RJBR_IDX 22 106 #define RX_OVERRUN_IDX 24 107 #define TFCS_IDX 38 108 #define TFRG_IDX 42 109 #define TX_UNDERRUN_IDX 43 110 111 static void xgene_get_drvinfo(struct net_device *ndev, 112 struct ethtool_drvinfo *info) 113 { 114 struct xgene_enet_pdata *pdata = netdev_priv(ndev); 115 struct platform_device *pdev = pdata->pdev; 116 117 strcpy(info->driver, "xgene_enet"); 118 strcpy(info->version, XGENE_DRV_VERSION); 119 snprintf(info->fw_version, ETHTOOL_FWVERS_LEN, "N/A"); 120 sprintf(info->bus_info, "%s", pdev->name); 121 } 122 123 static int xgene_get_link_ksettings(struct net_device *ndev, 124 struct ethtool_link_ksettings *cmd) 125 { 126 struct xgene_enet_pdata *pdata = netdev_priv(ndev); 127 struct phy_device *phydev = ndev->phydev; 128 u32 supported; 129 130 if (phy_interface_mode_is_rgmii(pdata->phy_mode)) { 131 if (phydev == NULL) 132 return -ENODEV; 133 134 return phy_ethtool_ksettings_get(phydev, cmd); 135 } else if (pdata->phy_mode == PHY_INTERFACE_MODE_SGMII) { 136 if (pdata->mdio_driver) { 137 if (!phydev) 138 return -ENODEV; 139 140 return phy_ethtool_ksettings_get(phydev, cmd); 141 } 142 143 supported = SUPPORTED_1000baseT_Full | SUPPORTED_Autoneg | 144 SUPPORTED_MII; 145 ethtool_convert_legacy_u32_to_link_mode( 146 cmd->link_modes.supported, 147 supported); 148 ethtool_convert_legacy_u32_to_link_mode( 149 cmd->link_modes.advertising, 150 supported); 151 152 cmd->base.speed = SPEED_1000; 153 cmd->base.duplex = DUPLEX_FULL; 154 cmd->base.port = PORT_MII; 155 cmd->base.autoneg = AUTONEG_ENABLE; 156 } else { 157 supported = SUPPORTED_10000baseT_Full | SUPPORTED_FIBRE; 158 ethtool_convert_legacy_u32_to_link_mode( 159 cmd->link_modes.supported, 160 supported); 161 ethtool_convert_legacy_u32_to_link_mode( 162 cmd->link_modes.advertising, 163 supported); 164 165 cmd->base.speed = SPEED_10000; 166 cmd->base.duplex = DUPLEX_FULL; 167 cmd->base.port = PORT_FIBRE; 168 cmd->base.autoneg = AUTONEG_DISABLE; 169 } 170 171 return 0; 172 } 173 174 static int xgene_set_link_ksettings(struct net_device *ndev, 175 const struct ethtool_link_ksettings *cmd) 176 { 177 struct xgene_enet_pdata *pdata = netdev_priv(ndev); 178 struct phy_device *phydev = ndev->phydev; 179 180 if (phy_interface_mode_is_rgmii(pdata->phy_mode)) { 181 if (!phydev) 182 return -ENODEV; 183 184 return phy_ethtool_ksettings_set(phydev, cmd); 185 } 186 187 if (pdata->phy_mode == PHY_INTERFACE_MODE_SGMII) { 188 if (pdata->mdio_driver) { 189 if (!phydev) 190 return -ENODEV; 191 192 return phy_ethtool_ksettings_set(phydev, cmd); 193 } 194 } 195 196 return -EINVAL; 197 } 198 199 static void xgene_get_strings(struct net_device *ndev, u32 stringset, u8 *data) 200 { 201 int i; 202 u8 *p = data; 203 204 if (stringset != ETH_SS_STATS) 205 return; 206 207 for (i = 0; i < XGENE_STATS_LEN; i++) { 208 memcpy(p, gstrings_stats[i].name, ETH_GSTRING_LEN); 209 p += ETH_GSTRING_LEN; 210 } 211 212 for (i = 0; i < XGENE_EXTD_STATS_LEN; i++) { 213 memcpy(p, gstrings_extd_stats[i].name, ETH_GSTRING_LEN); 214 p += ETH_GSTRING_LEN; 215 } 216 } 217 218 static int xgene_get_sset_count(struct net_device *ndev, int sset) 219 { 220 if (sset != ETH_SS_STATS) 221 return -EINVAL; 222 223 return XGENE_STATS_LEN + XGENE_EXTD_STATS_LEN; 224 } 225 226 static void xgene_get_extd_stats(struct xgene_enet_pdata *pdata) 227 { 228 u32 rx_drop, tx_drop; 229 u32 mask, tmp; 230 int i; 231 232 for (i = 0; i < XGENE_EXTD_STATS_LEN; i++) { 233 tmp = xgene_enet_rd_stat(pdata, gstrings_extd_stats[i].addr); 234 if (gstrings_extd_stats[i].mask) { 235 mask = GENMASK(gstrings_extd_stats[i].mask - 1, 0); 236 pdata->extd_stats[i] += (tmp & mask); 237 } 238 } 239 240 if (pdata->phy_mode == PHY_INTERFACE_MODE_XGMII) { 241 /* Errata 10GE_10 - SW should intepret RALN as 0 */ 242 pdata->extd_stats[RALN_IDX] = 0; 243 } else { 244 /* Errata ENET_15 - Fixes RFCS, RFLR, TFCS counter */ 245 pdata->extd_stats[RFCS_IDX] -= pdata->extd_stats[RALN_IDX]; 246 pdata->extd_stats[RFLR_IDX] -= pdata->extd_stats[RUND_IDX]; 247 pdata->extd_stats[TFCS_IDX] -= pdata->extd_stats[TFRG_IDX]; 248 } 249 250 pdata->mac_ops->get_drop_cnt(pdata, &rx_drop, &tx_drop); 251 pdata->extd_stats[RX_OVERRUN_IDX] += rx_drop; 252 pdata->extd_stats[TX_UNDERRUN_IDX] += tx_drop; 253 254 /* Errata 10GE_8 - Update Frame recovered from Errata 10GE_8/ENET_11 */ 255 pdata->extd_stats[FALSE_RFLR_IDX] = pdata->false_rflr; 256 /* Errata ENET_15 - Jabber Frame recov'ed from Errata 10GE_10/ENET_15 */ 257 pdata->extd_stats[FALSE_RJBR_IDX] = pdata->vlan_rjbr; 258 } 259 260 int xgene_extd_stats_init(struct xgene_enet_pdata *pdata) 261 { 262 pdata->extd_stats = devm_kmalloc_array(&pdata->pdev->dev, 263 XGENE_EXTD_STATS_LEN, sizeof(u64), GFP_KERNEL); 264 if (!pdata->extd_stats) 265 return -ENOMEM; 266 267 xgene_get_extd_stats(pdata); 268 memset(pdata->extd_stats, 0, XGENE_EXTD_STATS_LEN * sizeof(u64)); 269 270 return 0; 271 } 272 273 static void xgene_get_ethtool_stats(struct net_device *ndev, 274 struct ethtool_stats *dummy, 275 u64 *data) 276 { 277 struct xgene_enet_pdata *pdata = netdev_priv(ndev); 278 struct rtnl_link_stats64 stats; 279 int i; 280 281 dev_get_stats(ndev, &stats); 282 for (i = 0; i < XGENE_STATS_LEN; i++) 283 data[i] = *(u64 *)((char *)&stats + gstrings_stats[i].offset); 284 285 xgene_get_extd_stats(pdata); 286 for (i = 0; i < XGENE_EXTD_STATS_LEN; i++) 287 data[i + XGENE_STATS_LEN] = pdata->extd_stats[i]; 288 } 289 290 static void xgene_get_pauseparam(struct net_device *ndev, 291 struct ethtool_pauseparam *pp) 292 { 293 struct xgene_enet_pdata *pdata = netdev_priv(ndev); 294 295 pp->autoneg = pdata->pause_autoneg; 296 pp->tx_pause = pdata->tx_pause; 297 pp->rx_pause = pdata->rx_pause; 298 } 299 300 static int xgene_set_pauseparam(struct net_device *ndev, 301 struct ethtool_pauseparam *pp) 302 { 303 struct xgene_enet_pdata *pdata = netdev_priv(ndev); 304 struct phy_device *phydev = ndev->phydev; 305 u32 oldadv, newadv; 306 307 if (phy_interface_mode_is_rgmii(pdata->phy_mode) || 308 pdata->phy_mode == PHY_INTERFACE_MODE_SGMII) { 309 if (!phydev) 310 return -EINVAL; 311 312 if (!(phydev->supported & SUPPORTED_Pause) || 313 (!(phydev->supported & SUPPORTED_Asym_Pause) && 314 pp->rx_pause != pp->tx_pause)) 315 return -EINVAL; 316 317 pdata->pause_autoneg = pp->autoneg; 318 pdata->tx_pause = pp->tx_pause; 319 pdata->rx_pause = pp->rx_pause; 320 321 oldadv = phydev->advertising; 322 newadv = oldadv & ~(ADVERTISED_Pause | ADVERTISED_Asym_Pause); 323 324 if (pp->rx_pause) 325 newadv |= ADVERTISED_Pause | ADVERTISED_Asym_Pause; 326 327 if (pp->tx_pause) 328 newadv ^= ADVERTISED_Asym_Pause; 329 330 if (oldadv ^ newadv) { 331 phydev->advertising = newadv; 332 333 if (phydev->autoneg) 334 return phy_start_aneg(phydev); 335 336 if (!pp->autoneg) { 337 pdata->mac_ops->flowctl_tx(pdata, 338 pdata->tx_pause); 339 pdata->mac_ops->flowctl_rx(pdata, 340 pdata->rx_pause); 341 } 342 } 343 344 } else { 345 if (pp->autoneg) 346 return -EINVAL; 347 348 pdata->tx_pause = pp->tx_pause; 349 pdata->rx_pause = pp->rx_pause; 350 351 pdata->mac_ops->flowctl_tx(pdata, pdata->tx_pause); 352 pdata->mac_ops->flowctl_rx(pdata, pdata->rx_pause); 353 } 354 355 return 0; 356 } 357 358 static const struct ethtool_ops xgene_ethtool_ops = { 359 .get_drvinfo = xgene_get_drvinfo, 360 .get_link = ethtool_op_get_link, 361 .get_strings = xgene_get_strings, 362 .get_sset_count = xgene_get_sset_count, 363 .get_ethtool_stats = xgene_get_ethtool_stats, 364 .get_link_ksettings = xgene_get_link_ksettings, 365 .set_link_ksettings = xgene_set_link_ksettings, 366 .get_pauseparam = xgene_get_pauseparam, 367 .set_pauseparam = xgene_set_pauseparam 368 }; 369 370 void xgene_enet_set_ethtool_ops(struct net_device *ndev) 371 { 372 ndev->ethtool_ops = &xgene_ethtool_ops; 373 } 374