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_settings(struct net_device *netdev, struct ethtool_cmd *ecmd) 109 { 110 struct ucc_geth_private *ugeth = netdev_priv(netdev); 111 struct phy_device *phydev = ugeth->phydev; 112 struct ucc_geth_info *ug_info = ugeth->ug_info; 113 114 if (!phydev) 115 return -ENODEV; 116 117 ecmd->maxtxpkt = 1; 118 ecmd->maxrxpkt = ug_info->interruptcoalescingmaxvalue[0]; 119 120 return phy_ethtool_gset(phydev, ecmd); 121 } 122 123 static int 124 uec_set_settings(struct net_device *netdev, struct ethtool_cmd *ecmd) 125 { 126 struct ucc_geth_private *ugeth = netdev_priv(netdev); 127 struct phy_device *phydev = ugeth->phydev; 128 129 if (!phydev) 130 return -ENODEV; 131 132 return phy_ethtool_sset(phydev, ecmd); 133 } 134 135 static void 136 uec_get_pauseparam(struct net_device *netdev, 137 struct ethtool_pauseparam *pause) 138 { 139 struct ucc_geth_private *ugeth = netdev_priv(netdev); 140 141 pause->autoneg = ugeth->phydev->autoneg; 142 143 if (ugeth->ug_info->receiveFlowControl) 144 pause->rx_pause = 1; 145 if (ugeth->ug_info->transmitFlowControl) 146 pause->tx_pause = 1; 147 } 148 149 static int 150 uec_set_pauseparam(struct net_device *netdev, 151 struct ethtool_pauseparam *pause) 152 { 153 struct ucc_geth_private *ugeth = netdev_priv(netdev); 154 int ret = 0; 155 156 ugeth->ug_info->receiveFlowControl = pause->rx_pause; 157 ugeth->ug_info->transmitFlowControl = pause->tx_pause; 158 159 if (ugeth->phydev->autoneg) { 160 if (netif_running(netdev)) { 161 /* FIXME: automatically restart */ 162 netdev_info(netdev, "Please re-open the interface\n"); 163 } 164 } else { 165 struct ucc_geth_info *ug_info = ugeth->ug_info; 166 167 ret = init_flow_control_params(ug_info->aufc, 168 ug_info->receiveFlowControl, 169 ug_info->transmitFlowControl, 170 ug_info->pausePeriod, 171 ug_info->extensionField, 172 &ugeth->uccf->uf_regs->upsmr, 173 &ugeth->ug_regs->uempr, 174 &ugeth->ug_regs->maccfg1); 175 } 176 177 return ret; 178 } 179 180 static uint32_t 181 uec_get_msglevel(struct net_device *netdev) 182 { 183 struct ucc_geth_private *ugeth = netdev_priv(netdev); 184 return ugeth->msg_enable; 185 } 186 187 static void 188 uec_set_msglevel(struct net_device *netdev, uint32_t data) 189 { 190 struct ucc_geth_private *ugeth = netdev_priv(netdev); 191 ugeth->msg_enable = data; 192 } 193 194 static int 195 uec_get_regs_len(struct net_device *netdev) 196 { 197 return sizeof(struct ucc_geth); 198 } 199 200 static void 201 uec_get_regs(struct net_device *netdev, 202 struct ethtool_regs *regs, void *p) 203 { 204 int i; 205 struct ucc_geth_private *ugeth = netdev_priv(netdev); 206 u32 __iomem *ug_regs = (u32 __iomem *)ugeth->ug_regs; 207 u32 *buff = p; 208 209 for (i = 0; i < sizeof(struct ucc_geth) / sizeof(u32); i++) 210 buff[i] = in_be32(&ug_regs[i]); 211 } 212 213 static void 214 uec_get_ringparam(struct net_device *netdev, 215 struct ethtool_ringparam *ring) 216 { 217 struct ucc_geth_private *ugeth = netdev_priv(netdev); 218 struct ucc_geth_info *ug_info = ugeth->ug_info; 219 int queue = 0; 220 221 ring->rx_max_pending = UCC_GETH_BD_RING_SIZE_MAX; 222 ring->rx_mini_max_pending = UCC_GETH_BD_RING_SIZE_MAX; 223 ring->rx_jumbo_max_pending = UCC_GETH_BD_RING_SIZE_MAX; 224 ring->tx_max_pending = UCC_GETH_BD_RING_SIZE_MAX; 225 226 ring->rx_pending = ug_info->bdRingLenRx[queue]; 227 ring->rx_mini_pending = ug_info->bdRingLenRx[queue]; 228 ring->rx_jumbo_pending = ug_info->bdRingLenRx[queue]; 229 ring->tx_pending = ug_info->bdRingLenTx[queue]; 230 } 231 232 static int 233 uec_set_ringparam(struct net_device *netdev, 234 struct ethtool_ringparam *ring) 235 { 236 struct ucc_geth_private *ugeth = netdev_priv(netdev); 237 struct ucc_geth_info *ug_info = ugeth->ug_info; 238 int queue = 0, ret = 0; 239 240 if (ring->rx_pending < UCC_GETH_RX_BD_RING_SIZE_MIN) { 241 netdev_info(netdev, "RxBD ring size must be no smaller than %d\n", 242 UCC_GETH_RX_BD_RING_SIZE_MIN); 243 return -EINVAL; 244 } 245 if (ring->rx_pending % UCC_GETH_RX_BD_RING_SIZE_ALIGNMENT) { 246 netdev_info(netdev, "RxBD ring size must be multiple of %d\n", 247 UCC_GETH_RX_BD_RING_SIZE_ALIGNMENT); 248 return -EINVAL; 249 } 250 if (ring->tx_pending < UCC_GETH_TX_BD_RING_SIZE_MIN) { 251 netdev_info(netdev, "TxBD ring size must be no smaller than %d\n", 252 UCC_GETH_TX_BD_RING_SIZE_MIN); 253 return -EINVAL; 254 } 255 256 ug_info->bdRingLenRx[queue] = ring->rx_pending; 257 ug_info->bdRingLenTx[queue] = ring->tx_pending; 258 259 if (netif_running(netdev)) { 260 /* FIXME: restart automatically */ 261 netdev_info(netdev, "Please re-open the interface\n"); 262 } 263 264 return ret; 265 } 266 267 static int uec_get_sset_count(struct net_device *netdev, int sset) 268 { 269 struct ucc_geth_private *ugeth = netdev_priv(netdev); 270 u32 stats_mode = ugeth->ug_info->statisticsMode; 271 int len = 0; 272 273 switch (sset) { 274 case ETH_SS_STATS: 275 if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_HARDWARE) 276 len += UEC_HW_STATS_LEN; 277 if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX) 278 len += UEC_TX_FW_STATS_LEN; 279 if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX) 280 len += UEC_RX_FW_STATS_LEN; 281 282 return len; 283 284 default: 285 return -EOPNOTSUPP; 286 } 287 } 288 289 static void uec_get_strings(struct net_device *netdev, u32 stringset, u8 *buf) 290 { 291 struct ucc_geth_private *ugeth = netdev_priv(netdev); 292 u32 stats_mode = ugeth->ug_info->statisticsMode; 293 294 if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_HARDWARE) { 295 memcpy(buf, hw_stat_gstrings, UEC_HW_STATS_LEN * 296 ETH_GSTRING_LEN); 297 buf += UEC_HW_STATS_LEN * ETH_GSTRING_LEN; 298 } 299 if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX) { 300 memcpy(buf, tx_fw_stat_gstrings, UEC_TX_FW_STATS_LEN * 301 ETH_GSTRING_LEN); 302 buf += UEC_TX_FW_STATS_LEN * ETH_GSTRING_LEN; 303 } 304 if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX) 305 memcpy(buf, rx_fw_stat_gstrings, UEC_RX_FW_STATS_LEN * 306 ETH_GSTRING_LEN); 307 } 308 309 static void uec_get_ethtool_stats(struct net_device *netdev, 310 struct ethtool_stats *stats, uint64_t *data) 311 { 312 struct ucc_geth_private *ugeth = netdev_priv(netdev); 313 u32 stats_mode = ugeth->ug_info->statisticsMode; 314 u32 __iomem *base; 315 int i, j = 0; 316 317 if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_HARDWARE) { 318 if (ugeth->ug_regs) 319 base = (u32 __iomem *)&ugeth->ug_regs->tx64; 320 else 321 base = NULL; 322 323 for (i = 0; i < UEC_HW_STATS_LEN; i++) 324 data[j++] = base ? in_be32(&base[i]) : 0; 325 } 326 if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX) { 327 base = (u32 __iomem *)ugeth->p_tx_fw_statistics_pram; 328 for (i = 0; i < UEC_TX_FW_STATS_LEN; i++) 329 data[j++] = base ? in_be32(&base[i]) : 0; 330 } 331 if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX) { 332 base = (u32 __iomem *)ugeth->p_rx_fw_statistics_pram; 333 for (i = 0; i < UEC_RX_FW_STATS_LEN; i++) 334 data[j++] = base ? in_be32(&base[i]) : 0; 335 } 336 } 337 338 static int uec_nway_reset(struct net_device *netdev) 339 { 340 struct ucc_geth_private *ugeth = netdev_priv(netdev); 341 342 return phy_start_aneg(ugeth->phydev); 343 } 344 345 /* Report driver information */ 346 static void 347 uec_get_drvinfo(struct net_device *netdev, 348 struct ethtool_drvinfo *drvinfo) 349 { 350 strlcpy(drvinfo->driver, DRV_NAME, sizeof(drvinfo->driver)); 351 strlcpy(drvinfo->version, DRV_VERSION, sizeof(drvinfo->version)); 352 strlcpy(drvinfo->fw_version, "N/A", sizeof(drvinfo->fw_version)); 353 strlcpy(drvinfo->bus_info, "QUICC ENGINE", sizeof(drvinfo->bus_info)); 354 drvinfo->eedump_len = 0; 355 drvinfo->regdump_len = uec_get_regs_len(netdev); 356 } 357 358 #ifdef CONFIG_PM 359 360 static void uec_get_wol(struct net_device *netdev, struct ethtool_wolinfo *wol) 361 { 362 struct ucc_geth_private *ugeth = netdev_priv(netdev); 363 struct phy_device *phydev = ugeth->phydev; 364 365 if (phydev && phydev->irq) 366 wol->supported |= WAKE_PHY; 367 if (qe_alive_during_sleep()) 368 wol->supported |= WAKE_MAGIC; 369 370 wol->wolopts = ugeth->wol_en; 371 } 372 373 static int uec_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol) 374 { 375 struct ucc_geth_private *ugeth = netdev_priv(netdev); 376 struct phy_device *phydev = ugeth->phydev; 377 378 if (wol->wolopts & ~(WAKE_PHY | WAKE_MAGIC)) 379 return -EINVAL; 380 else if (wol->wolopts & WAKE_PHY && (!phydev || !phydev->irq)) 381 return -EINVAL; 382 else if (wol->wolopts & WAKE_MAGIC && !qe_alive_during_sleep()) 383 return -EINVAL; 384 385 ugeth->wol_en = wol->wolopts; 386 device_set_wakeup_enable(&netdev->dev, ugeth->wol_en); 387 388 return 0; 389 } 390 391 #else 392 #define uec_get_wol NULL 393 #define uec_set_wol NULL 394 #endif /* CONFIG_PM */ 395 396 static const struct ethtool_ops uec_ethtool_ops = { 397 .get_settings = uec_get_settings, 398 .set_settings = uec_set_settings, 399 .get_drvinfo = uec_get_drvinfo, 400 .get_regs_len = uec_get_regs_len, 401 .get_regs = uec_get_regs, 402 .get_msglevel = uec_get_msglevel, 403 .set_msglevel = uec_set_msglevel, 404 .nway_reset = uec_nway_reset, 405 .get_link = ethtool_op_get_link, 406 .get_ringparam = uec_get_ringparam, 407 .set_ringparam = uec_set_ringparam, 408 .get_pauseparam = uec_get_pauseparam, 409 .set_pauseparam = uec_set_pauseparam, 410 .get_sset_count = uec_get_sset_count, 411 .get_strings = uec_get_strings, 412 .get_ethtool_stats = uec_get_ethtool_stats, 413 .get_wol = uec_get_wol, 414 .set_wol = uec_set_wol, 415 .get_ts_info = ethtool_op_get_ts_info, 416 }; 417 418 void uec_set_ethtool_ops(struct net_device *netdev) 419 { 420 netdev->ethtool_ops = &uec_ethtool_ops; 421 } 422