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 phy_ethtool_ksettings_get(phydev, cmd); 135 136 return 0; 137 } else if (pdata->phy_mode == PHY_INTERFACE_MODE_SGMII) { 138 if (pdata->mdio_driver) { 139 if (!phydev) 140 return -ENODEV; 141 142 phy_ethtool_ksettings_get(phydev, cmd); 143 144 return 0; 145 } 146 147 supported = SUPPORTED_1000baseT_Full | SUPPORTED_Autoneg | 148 SUPPORTED_MII; 149 ethtool_convert_legacy_u32_to_link_mode( 150 cmd->link_modes.supported, 151 supported); 152 ethtool_convert_legacy_u32_to_link_mode( 153 cmd->link_modes.advertising, 154 supported); 155 156 cmd->base.speed = SPEED_1000; 157 cmd->base.duplex = DUPLEX_FULL; 158 cmd->base.port = PORT_MII; 159 cmd->base.autoneg = AUTONEG_ENABLE; 160 } else { 161 supported = SUPPORTED_10000baseT_Full | SUPPORTED_FIBRE; 162 ethtool_convert_legacy_u32_to_link_mode( 163 cmd->link_modes.supported, 164 supported); 165 ethtool_convert_legacy_u32_to_link_mode( 166 cmd->link_modes.advertising, 167 supported); 168 169 cmd->base.speed = SPEED_10000; 170 cmd->base.duplex = DUPLEX_FULL; 171 cmd->base.port = PORT_FIBRE; 172 cmd->base.autoneg = AUTONEG_DISABLE; 173 } 174 175 return 0; 176 } 177 178 static int xgene_set_link_ksettings(struct net_device *ndev, 179 const struct ethtool_link_ksettings *cmd) 180 { 181 struct xgene_enet_pdata *pdata = netdev_priv(ndev); 182 struct phy_device *phydev = ndev->phydev; 183 184 if (phy_interface_mode_is_rgmii(pdata->phy_mode)) { 185 if (!phydev) 186 return -ENODEV; 187 188 return phy_ethtool_ksettings_set(phydev, cmd); 189 } 190 191 if (pdata->phy_mode == PHY_INTERFACE_MODE_SGMII) { 192 if (pdata->mdio_driver) { 193 if (!phydev) 194 return -ENODEV; 195 196 return phy_ethtool_ksettings_set(phydev, cmd); 197 } 198 } 199 200 return -EINVAL; 201 } 202 203 static void xgene_get_strings(struct net_device *ndev, u32 stringset, u8 *data) 204 { 205 int i; 206 u8 *p = data; 207 208 if (stringset != ETH_SS_STATS) 209 return; 210 211 for (i = 0; i < XGENE_STATS_LEN; i++) { 212 memcpy(p, gstrings_stats[i].name, ETH_GSTRING_LEN); 213 p += ETH_GSTRING_LEN; 214 } 215 216 for (i = 0; i < XGENE_EXTD_STATS_LEN; i++) { 217 memcpy(p, gstrings_extd_stats[i].name, ETH_GSTRING_LEN); 218 p += ETH_GSTRING_LEN; 219 } 220 } 221 222 static int xgene_get_sset_count(struct net_device *ndev, int sset) 223 { 224 if (sset != ETH_SS_STATS) 225 return -EINVAL; 226 227 return XGENE_STATS_LEN + XGENE_EXTD_STATS_LEN; 228 } 229 230 static void xgene_get_extd_stats(struct xgene_enet_pdata *pdata) 231 { 232 u32 rx_drop, tx_drop; 233 u32 mask, tmp; 234 int i; 235 236 for (i = 0; i < XGENE_EXTD_STATS_LEN; i++) { 237 tmp = xgene_enet_rd_stat(pdata, gstrings_extd_stats[i].addr); 238 if (gstrings_extd_stats[i].mask) { 239 mask = GENMASK(gstrings_extd_stats[i].mask - 1, 0); 240 pdata->extd_stats[i] += (tmp & mask); 241 } 242 } 243 244 if (pdata->phy_mode == PHY_INTERFACE_MODE_XGMII) { 245 /* Errata 10GE_10 - SW should intepret RALN as 0 */ 246 pdata->extd_stats[RALN_IDX] = 0; 247 } else { 248 /* Errata ENET_15 - Fixes RFCS, RFLR, TFCS counter */ 249 pdata->extd_stats[RFCS_IDX] -= pdata->extd_stats[RALN_IDX]; 250 pdata->extd_stats[RFLR_IDX] -= pdata->extd_stats[RUND_IDX]; 251 pdata->extd_stats[TFCS_IDX] -= pdata->extd_stats[TFRG_IDX]; 252 } 253 254 pdata->mac_ops->get_drop_cnt(pdata, &rx_drop, &tx_drop); 255 pdata->extd_stats[RX_OVERRUN_IDX] += rx_drop; 256 pdata->extd_stats[TX_UNDERRUN_IDX] += tx_drop; 257 258 /* Errata 10GE_8 - Update Frame recovered from Errata 10GE_8/ENET_11 */ 259 pdata->extd_stats[FALSE_RFLR_IDX] = pdata->false_rflr; 260 /* Errata ENET_15 - Jabber Frame recov'ed from Errata 10GE_10/ENET_15 */ 261 pdata->extd_stats[FALSE_RJBR_IDX] = pdata->vlan_rjbr; 262 } 263 264 int xgene_extd_stats_init(struct xgene_enet_pdata *pdata) 265 { 266 pdata->extd_stats = devm_kmalloc_array(&pdata->pdev->dev, 267 XGENE_EXTD_STATS_LEN, sizeof(u64), GFP_KERNEL); 268 if (!pdata->extd_stats) 269 return -ENOMEM; 270 271 xgene_get_extd_stats(pdata); 272 memset(pdata->extd_stats, 0, XGENE_EXTD_STATS_LEN * sizeof(u64)); 273 274 return 0; 275 } 276 277 static void xgene_get_ethtool_stats(struct net_device *ndev, 278 struct ethtool_stats *dummy, 279 u64 *data) 280 { 281 struct xgene_enet_pdata *pdata = netdev_priv(ndev); 282 struct rtnl_link_stats64 stats; 283 int i; 284 285 dev_get_stats(ndev, &stats); 286 for (i = 0; i < XGENE_STATS_LEN; i++) 287 data[i] = *(u64 *)((char *)&stats + gstrings_stats[i].offset); 288 289 xgene_get_extd_stats(pdata); 290 for (i = 0; i < XGENE_EXTD_STATS_LEN; i++) 291 data[i + XGENE_STATS_LEN] = pdata->extd_stats[i]; 292 } 293 294 static void xgene_get_pauseparam(struct net_device *ndev, 295 struct ethtool_pauseparam *pp) 296 { 297 struct xgene_enet_pdata *pdata = netdev_priv(ndev); 298 299 pp->autoneg = pdata->pause_autoneg; 300 pp->tx_pause = pdata->tx_pause; 301 pp->rx_pause = pdata->rx_pause; 302 } 303 304 static int xgene_set_pauseparam(struct net_device *ndev, 305 struct ethtool_pauseparam *pp) 306 { 307 struct xgene_enet_pdata *pdata = netdev_priv(ndev); 308 struct phy_device *phydev = ndev->phydev; 309 310 if (phy_interface_mode_is_rgmii(pdata->phy_mode) || 311 pdata->phy_mode == PHY_INTERFACE_MODE_SGMII) { 312 if (!phydev) 313 return -EINVAL; 314 315 if (!phy_validate_pause(phydev, pp)) 316 return -EINVAL; 317 318 pdata->pause_autoneg = pp->autoneg; 319 pdata->tx_pause = pp->tx_pause; 320 pdata->rx_pause = pp->rx_pause; 321 322 phy_set_asym_pause(phydev, pp->rx_pause, pp->tx_pause); 323 324 if (!pp->autoneg) { 325 pdata->mac_ops->flowctl_tx(pdata, pdata->tx_pause); 326 pdata->mac_ops->flowctl_rx(pdata, pdata->rx_pause); 327 } 328 } else { 329 if (pp->autoneg) 330 return -EINVAL; 331 332 pdata->tx_pause = pp->tx_pause; 333 pdata->rx_pause = pp->rx_pause; 334 335 pdata->mac_ops->flowctl_tx(pdata, pdata->tx_pause); 336 pdata->mac_ops->flowctl_rx(pdata, pdata->rx_pause); 337 } 338 339 return 0; 340 } 341 342 static const struct ethtool_ops xgene_ethtool_ops = { 343 .get_drvinfo = xgene_get_drvinfo, 344 .get_link = ethtool_op_get_link, 345 .get_strings = xgene_get_strings, 346 .get_sset_count = xgene_get_sset_count, 347 .get_ethtool_stats = xgene_get_ethtool_stats, 348 .get_link_ksettings = xgene_get_link_ksettings, 349 .set_link_ksettings = xgene_set_link_ksettings, 350 .get_pauseparam = xgene_get_pauseparam, 351 .set_pauseparam = xgene_set_pauseparam 352 }; 353 354 void xgene_enet_set_ethtool_ops(struct net_device *ndev) 355 { 356 ndev->ethtool_ops = &xgene_ethtool_ops; 357 } 358