1 /* 2 * Copyright (c) 2007 Freescale Semiconductor, Inc. All rights reserved. 3 * 4 * Description: QE UCC Gigabit Ethernet Ethtool API Set 5 * 6 * Author: Li Yang <leoli@freescale.com> 7 * 8 * Limitation: 9 * Can only get/set settings of the first queue. 10 * Need to re-open the interface manually after changing some parameters. 11 * 12 * This program is free software; you can redistribute it and/or modify it 13 * under the terms of the GNU General Public License as published by the 14 * Free Software Foundation; either version 2 of the License, or (at your 15 * option) any later version. 16 */ 17 18 #include <linux/kernel.h> 19 #include <linux/errno.h> 20 #include <linux/stddef.h> 21 #include <linux/interrupt.h> 22 #include <linux/netdevice.h> 23 #include <linux/etherdevice.h> 24 #include <linux/skbuff.h> 25 #include <linux/spinlock.h> 26 #include <linux/mm.h> 27 #include <linux/delay.h> 28 #include <linux/dma-mapping.h> 29 #include <linux/ethtool.h> 30 #include <linux/mii.h> 31 #include <linux/phy.h> 32 33 #include <asm/io.h> 34 #include <asm/irq.h> 35 #include <asm/uaccess.h> 36 #include <asm/types.h> 37 38 #include "ucc_geth.h" 39 40 static const char hw_stat_gstrings[][ETH_GSTRING_LEN] = { 41 "tx-64-frames", 42 "tx-65-127-frames", 43 "tx-128-255-frames", 44 "rx-64-frames", 45 "rx-65-127-frames", 46 "rx-128-255-frames", 47 "tx-bytes-ok", 48 "tx-pause-frames", 49 "tx-multicast-frames", 50 "tx-broadcast-frames", 51 "rx-frames", 52 "rx-bytes-ok", 53 "rx-bytes-all", 54 "rx-multicast-frames", 55 "rx-broadcast-frames", 56 "stats-counter-carry", 57 "stats-counter-mask", 58 "rx-dropped-frames", 59 }; 60 61 static const char tx_fw_stat_gstrings[][ETH_GSTRING_LEN] = { 62 "tx-single-collision", 63 "tx-multiple-collision", 64 "tx-late-collsion", 65 "tx-aborted-frames", 66 "tx-lost-frames", 67 "tx-carrier-sense-errors", 68 "tx-frames-ok", 69 "tx-excessive-differ-frames", 70 "tx-256-511-frames", 71 "tx-512-1023-frames", 72 "tx-1024-1518-frames", 73 "tx-jumbo-frames", 74 }; 75 76 static const char rx_fw_stat_gstrings[][ETH_GSTRING_LEN] = { 77 "rx-crc-errors", 78 "rx-alignment-errors", 79 "rx-in-range-length-errors", 80 "rx-out-of-range-length-errors", 81 "rx-too-long-frames", 82 "rx-runt", 83 "rx-very-long-event", 84 "rx-symbol-errors", 85 "rx-busy-drop-frames", 86 "reserved", 87 "reserved", 88 "rx-mismatch-drop-frames", 89 "rx-small-than-64", 90 "rx-256-511-frames", 91 "rx-512-1023-frames", 92 "rx-1024-1518-frames", 93 "rx-jumbo-frames", 94 "rx-mac-error-loss", 95 "rx-pause-frames", 96 "reserved", 97 "rx-vlan-removed", 98 "rx-vlan-replaced", 99 "rx-vlan-inserted", 100 "rx-ip-checksum-errors", 101 }; 102 103 #define UEC_HW_STATS_LEN ARRAY_SIZE(hw_stat_gstrings) 104 #define UEC_TX_FW_STATS_LEN ARRAY_SIZE(tx_fw_stat_gstrings) 105 #define UEC_RX_FW_STATS_LEN ARRAY_SIZE(rx_fw_stat_gstrings) 106 107 static int 108 uec_get_ksettings(struct net_device *netdev, struct ethtool_link_ksettings *cmd) 109 { 110 struct ucc_geth_private *ugeth = netdev_priv(netdev); 111 struct phy_device *phydev = ugeth->phydev; 112 113 if (!phydev) 114 return -ENODEV; 115 116 return phy_ethtool_ksettings_get(phydev, cmd); 117 } 118 119 static int 120 uec_set_ksettings(struct net_device *netdev, 121 const struct ethtool_link_ksettings *cmd) 122 { 123 struct ucc_geth_private *ugeth = netdev_priv(netdev); 124 struct phy_device *phydev = ugeth->phydev; 125 126 if (!phydev) 127 return -ENODEV; 128 129 return phy_ethtool_ksettings_set(phydev, cmd); 130 } 131 132 static void 133 uec_get_pauseparam(struct net_device *netdev, 134 struct ethtool_pauseparam *pause) 135 { 136 struct ucc_geth_private *ugeth = netdev_priv(netdev); 137 138 pause->autoneg = ugeth->phydev->autoneg; 139 140 if (ugeth->ug_info->receiveFlowControl) 141 pause->rx_pause = 1; 142 if (ugeth->ug_info->transmitFlowControl) 143 pause->tx_pause = 1; 144 } 145 146 static int 147 uec_set_pauseparam(struct net_device *netdev, 148 struct ethtool_pauseparam *pause) 149 { 150 struct ucc_geth_private *ugeth = netdev_priv(netdev); 151 int ret = 0; 152 153 ugeth->ug_info->receiveFlowControl = pause->rx_pause; 154 ugeth->ug_info->transmitFlowControl = pause->tx_pause; 155 156 if (ugeth->phydev->autoneg) { 157 if (netif_running(netdev)) { 158 /* FIXME: automatically restart */ 159 netdev_info(netdev, "Please re-open the interface\n"); 160 } 161 } else { 162 struct ucc_geth_info *ug_info = ugeth->ug_info; 163 164 ret = init_flow_control_params(ug_info->aufc, 165 ug_info->receiveFlowControl, 166 ug_info->transmitFlowControl, 167 ug_info->pausePeriod, 168 ug_info->extensionField, 169 &ugeth->uccf->uf_regs->upsmr, 170 &ugeth->ug_regs->uempr, 171 &ugeth->ug_regs->maccfg1); 172 } 173 174 return ret; 175 } 176 177 static uint32_t 178 uec_get_msglevel(struct net_device *netdev) 179 { 180 struct ucc_geth_private *ugeth = netdev_priv(netdev); 181 return ugeth->msg_enable; 182 } 183 184 static void 185 uec_set_msglevel(struct net_device *netdev, uint32_t data) 186 { 187 struct ucc_geth_private *ugeth = netdev_priv(netdev); 188 ugeth->msg_enable = data; 189 } 190 191 static int 192 uec_get_regs_len(struct net_device *netdev) 193 { 194 return sizeof(struct ucc_geth); 195 } 196 197 static void 198 uec_get_regs(struct net_device *netdev, 199 struct ethtool_regs *regs, void *p) 200 { 201 int i; 202 struct ucc_geth_private *ugeth = netdev_priv(netdev); 203 u32 __iomem *ug_regs = (u32 __iomem *)ugeth->ug_regs; 204 u32 *buff = p; 205 206 for (i = 0; i < sizeof(struct ucc_geth) / sizeof(u32); i++) 207 buff[i] = in_be32(&ug_regs[i]); 208 } 209 210 static void 211 uec_get_ringparam(struct net_device *netdev, 212 struct ethtool_ringparam *ring) 213 { 214 struct ucc_geth_private *ugeth = netdev_priv(netdev); 215 struct ucc_geth_info *ug_info = ugeth->ug_info; 216 int queue = 0; 217 218 ring->rx_max_pending = UCC_GETH_BD_RING_SIZE_MAX; 219 ring->rx_mini_max_pending = UCC_GETH_BD_RING_SIZE_MAX; 220 ring->rx_jumbo_max_pending = UCC_GETH_BD_RING_SIZE_MAX; 221 ring->tx_max_pending = UCC_GETH_BD_RING_SIZE_MAX; 222 223 ring->rx_pending = ug_info->bdRingLenRx[queue]; 224 ring->rx_mini_pending = ug_info->bdRingLenRx[queue]; 225 ring->rx_jumbo_pending = ug_info->bdRingLenRx[queue]; 226 ring->tx_pending = ug_info->bdRingLenTx[queue]; 227 } 228 229 static int 230 uec_set_ringparam(struct net_device *netdev, 231 struct ethtool_ringparam *ring) 232 { 233 struct ucc_geth_private *ugeth = netdev_priv(netdev); 234 struct ucc_geth_info *ug_info = ugeth->ug_info; 235 int queue = 0, ret = 0; 236 237 if (ring->rx_pending < UCC_GETH_RX_BD_RING_SIZE_MIN) { 238 netdev_info(netdev, "RxBD ring size must be no smaller than %d\n", 239 UCC_GETH_RX_BD_RING_SIZE_MIN); 240 return -EINVAL; 241 } 242 if (ring->rx_pending % UCC_GETH_RX_BD_RING_SIZE_ALIGNMENT) { 243 netdev_info(netdev, "RxBD ring size must be multiple of %d\n", 244 UCC_GETH_RX_BD_RING_SIZE_ALIGNMENT); 245 return -EINVAL; 246 } 247 if (ring->tx_pending < UCC_GETH_TX_BD_RING_SIZE_MIN) { 248 netdev_info(netdev, "TxBD ring size must be no smaller than %d\n", 249 UCC_GETH_TX_BD_RING_SIZE_MIN); 250 return -EINVAL; 251 } 252 253 ug_info->bdRingLenRx[queue] = ring->rx_pending; 254 ug_info->bdRingLenTx[queue] = ring->tx_pending; 255 256 if (netif_running(netdev)) { 257 /* FIXME: restart automatically */ 258 netdev_info(netdev, "Please re-open the interface\n"); 259 } 260 261 return ret; 262 } 263 264 static int uec_get_sset_count(struct net_device *netdev, int sset) 265 { 266 struct ucc_geth_private *ugeth = netdev_priv(netdev); 267 u32 stats_mode = ugeth->ug_info->statisticsMode; 268 int len = 0; 269 270 switch (sset) { 271 case ETH_SS_STATS: 272 if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_HARDWARE) 273 len += UEC_HW_STATS_LEN; 274 if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX) 275 len += UEC_TX_FW_STATS_LEN; 276 if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX) 277 len += UEC_RX_FW_STATS_LEN; 278 279 return len; 280 281 default: 282 return -EOPNOTSUPP; 283 } 284 } 285 286 static void uec_get_strings(struct net_device *netdev, u32 stringset, u8 *buf) 287 { 288 struct ucc_geth_private *ugeth = netdev_priv(netdev); 289 u32 stats_mode = ugeth->ug_info->statisticsMode; 290 291 if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_HARDWARE) { 292 memcpy(buf, hw_stat_gstrings, UEC_HW_STATS_LEN * 293 ETH_GSTRING_LEN); 294 buf += UEC_HW_STATS_LEN * ETH_GSTRING_LEN; 295 } 296 if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX) { 297 memcpy(buf, tx_fw_stat_gstrings, UEC_TX_FW_STATS_LEN * 298 ETH_GSTRING_LEN); 299 buf += UEC_TX_FW_STATS_LEN * ETH_GSTRING_LEN; 300 } 301 if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX) 302 memcpy(buf, rx_fw_stat_gstrings, UEC_RX_FW_STATS_LEN * 303 ETH_GSTRING_LEN); 304 } 305 306 static void uec_get_ethtool_stats(struct net_device *netdev, 307 struct ethtool_stats *stats, uint64_t *data) 308 { 309 struct ucc_geth_private *ugeth = netdev_priv(netdev); 310 u32 stats_mode = ugeth->ug_info->statisticsMode; 311 u32 __iomem *base; 312 int i, j = 0; 313 314 if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_HARDWARE) { 315 if (ugeth->ug_regs) 316 base = (u32 __iomem *)&ugeth->ug_regs->tx64; 317 else 318 base = NULL; 319 320 for (i = 0; i < UEC_HW_STATS_LEN; i++) 321 data[j++] = base ? in_be32(&base[i]) : 0; 322 } 323 if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX) { 324 base = (u32 __iomem *)ugeth->p_tx_fw_statistics_pram; 325 for (i = 0; i < UEC_TX_FW_STATS_LEN; i++) 326 data[j++] = base ? in_be32(&base[i]) : 0; 327 } 328 if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX) { 329 base = (u32 __iomem *)ugeth->p_rx_fw_statistics_pram; 330 for (i = 0; i < UEC_RX_FW_STATS_LEN; i++) 331 data[j++] = base ? in_be32(&base[i]) : 0; 332 } 333 } 334 335 static int uec_nway_reset(struct net_device *netdev) 336 { 337 struct ucc_geth_private *ugeth = netdev_priv(netdev); 338 339 return phy_start_aneg(ugeth->phydev); 340 } 341 342 /* Report driver information */ 343 static void 344 uec_get_drvinfo(struct net_device *netdev, 345 struct ethtool_drvinfo *drvinfo) 346 { 347 strlcpy(drvinfo->driver, DRV_NAME, sizeof(drvinfo->driver)); 348 strlcpy(drvinfo->version, DRV_VERSION, sizeof(drvinfo->version)); 349 strlcpy(drvinfo->fw_version, "N/A", sizeof(drvinfo->fw_version)); 350 strlcpy(drvinfo->bus_info, "QUICC ENGINE", sizeof(drvinfo->bus_info)); 351 } 352 353 #ifdef CONFIG_PM 354 355 static void uec_get_wol(struct net_device *netdev, struct ethtool_wolinfo *wol) 356 { 357 struct ucc_geth_private *ugeth = netdev_priv(netdev); 358 struct phy_device *phydev = ugeth->phydev; 359 360 if (phydev && phydev->irq) 361 wol->supported |= WAKE_PHY; 362 if (qe_alive_during_sleep()) 363 wol->supported |= WAKE_MAGIC; 364 365 wol->wolopts = ugeth->wol_en; 366 } 367 368 static int uec_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol) 369 { 370 struct ucc_geth_private *ugeth = netdev_priv(netdev); 371 struct phy_device *phydev = ugeth->phydev; 372 373 if (wol->wolopts & ~(WAKE_PHY | WAKE_MAGIC)) 374 return -EINVAL; 375 else if (wol->wolopts & WAKE_PHY && (!phydev || !phydev->irq)) 376 return -EINVAL; 377 else if (wol->wolopts & WAKE_MAGIC && !qe_alive_during_sleep()) 378 return -EINVAL; 379 380 ugeth->wol_en = wol->wolopts; 381 device_set_wakeup_enable(&netdev->dev, ugeth->wol_en); 382 383 return 0; 384 } 385 386 #else 387 #define uec_get_wol NULL 388 #define uec_set_wol NULL 389 #endif /* CONFIG_PM */ 390 391 static const struct ethtool_ops uec_ethtool_ops = { 392 .get_drvinfo = uec_get_drvinfo, 393 .get_regs_len = uec_get_regs_len, 394 .get_regs = uec_get_regs, 395 .get_msglevel = uec_get_msglevel, 396 .set_msglevel = uec_set_msglevel, 397 .nway_reset = uec_nway_reset, 398 .get_link = ethtool_op_get_link, 399 .get_ringparam = uec_get_ringparam, 400 .set_ringparam = uec_set_ringparam, 401 .get_pauseparam = uec_get_pauseparam, 402 .set_pauseparam = uec_set_pauseparam, 403 .get_sset_count = uec_get_sset_count, 404 .get_strings = uec_get_strings, 405 .get_ethtool_stats = uec_get_ethtool_stats, 406 .get_wol = uec_get_wol, 407 .set_wol = uec_set_wol, 408 .get_ts_info = ethtool_op_get_ts_info, 409 .get_link_ksettings = uec_get_ksettings, 410 .set_link_ksettings = uec_set_ksettings, 411 }; 412 413 void uec_set_ethtool_ops(struct net_device *netdev) 414 { 415 netdev->ethtool_ops = &uec_ethtool_ops; 416 } 417