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 <linux/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-collision", 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 phy_ethtool_ksettings_get(phydev, cmd); 117 118 return 0; 119 } 120 121 static int 122 uec_set_ksettings(struct net_device *netdev, 123 const struct ethtool_link_ksettings *cmd) 124 { 125 struct ucc_geth_private *ugeth = netdev_priv(netdev); 126 struct phy_device *phydev = ugeth->phydev; 127 128 if (!phydev) 129 return -ENODEV; 130 131 return phy_ethtool_ksettings_set(phydev, cmd); 132 } 133 134 static void 135 uec_get_pauseparam(struct net_device *netdev, 136 struct ethtool_pauseparam *pause) 137 { 138 struct ucc_geth_private *ugeth = netdev_priv(netdev); 139 140 pause->autoneg = ugeth->phydev->autoneg; 141 142 if (ugeth->ug_info->receiveFlowControl) 143 pause->rx_pause = 1; 144 if (ugeth->ug_info->transmitFlowControl) 145 pause->tx_pause = 1; 146 } 147 148 static int 149 uec_set_pauseparam(struct net_device *netdev, 150 struct ethtool_pauseparam *pause) 151 { 152 struct ucc_geth_private *ugeth = netdev_priv(netdev); 153 int ret = 0; 154 155 ugeth->ug_info->receiveFlowControl = pause->rx_pause; 156 ugeth->ug_info->transmitFlowControl = pause->tx_pause; 157 158 if (ugeth->phydev->autoneg) { 159 if (netif_running(netdev)) { 160 /* FIXME: automatically restart */ 161 netdev_info(netdev, "Please re-open the interface\n"); 162 } 163 } else { 164 struct ucc_geth_info *ug_info = ugeth->ug_info; 165 166 ret = init_flow_control_params(ug_info->aufc, 167 ug_info->receiveFlowControl, 168 ug_info->transmitFlowControl, 169 ug_info->pausePeriod, 170 ug_info->extensionField, 171 &ugeth->uccf->uf_regs->upsmr, 172 &ugeth->ug_regs->uempr, 173 &ugeth->ug_regs->maccfg1); 174 } 175 176 return ret; 177 } 178 179 static uint32_t 180 uec_get_msglevel(struct net_device *netdev) 181 { 182 struct ucc_geth_private *ugeth = netdev_priv(netdev); 183 return ugeth->msg_enable; 184 } 185 186 static void 187 uec_set_msglevel(struct net_device *netdev, uint32_t data) 188 { 189 struct ucc_geth_private *ugeth = netdev_priv(netdev); 190 ugeth->msg_enable = data; 191 } 192 193 static int 194 uec_get_regs_len(struct net_device *netdev) 195 { 196 return sizeof(struct ucc_geth); 197 } 198 199 static void 200 uec_get_regs(struct net_device *netdev, 201 struct ethtool_regs *regs, void *p) 202 { 203 int i; 204 struct ucc_geth_private *ugeth = netdev_priv(netdev); 205 u32 __iomem *ug_regs = (u32 __iomem *)ugeth->ug_regs; 206 u32 *buff = p; 207 208 for (i = 0; i < sizeof(struct ucc_geth) / sizeof(u32); i++) 209 buff[i] = in_be32(&ug_regs[i]); 210 } 211 212 static void 213 uec_get_ringparam(struct net_device *netdev, 214 struct ethtool_ringparam *ring) 215 { 216 struct ucc_geth_private *ugeth = netdev_priv(netdev); 217 struct ucc_geth_info *ug_info = ugeth->ug_info; 218 int queue = 0; 219 220 ring->rx_max_pending = UCC_GETH_BD_RING_SIZE_MAX; 221 ring->rx_mini_max_pending = UCC_GETH_BD_RING_SIZE_MAX; 222 ring->rx_jumbo_max_pending = UCC_GETH_BD_RING_SIZE_MAX; 223 ring->tx_max_pending = UCC_GETH_BD_RING_SIZE_MAX; 224 225 ring->rx_pending = ug_info->bdRingLenRx[queue]; 226 ring->rx_mini_pending = ug_info->bdRingLenRx[queue]; 227 ring->rx_jumbo_pending = ug_info->bdRingLenRx[queue]; 228 ring->tx_pending = ug_info->bdRingLenTx[queue]; 229 } 230 231 static int 232 uec_set_ringparam(struct net_device *netdev, 233 struct ethtool_ringparam *ring) 234 { 235 struct ucc_geth_private *ugeth = netdev_priv(netdev); 236 struct ucc_geth_info *ug_info = ugeth->ug_info; 237 int queue = 0, ret = 0; 238 239 if (ring->rx_pending < UCC_GETH_RX_BD_RING_SIZE_MIN) { 240 netdev_info(netdev, "RxBD ring size must be no smaller than %d\n", 241 UCC_GETH_RX_BD_RING_SIZE_MIN); 242 return -EINVAL; 243 } 244 if (ring->rx_pending % UCC_GETH_RX_BD_RING_SIZE_ALIGNMENT) { 245 netdev_info(netdev, "RxBD ring size must be multiple of %d\n", 246 UCC_GETH_RX_BD_RING_SIZE_ALIGNMENT); 247 return -EINVAL; 248 } 249 if (ring->tx_pending < UCC_GETH_TX_BD_RING_SIZE_MIN) { 250 netdev_info(netdev, "TxBD ring size must be no smaller than %d\n", 251 UCC_GETH_TX_BD_RING_SIZE_MIN); 252 return -EINVAL; 253 } 254 255 if (netif_running(netdev)) 256 return -EBUSY; 257 258 ug_info->bdRingLenRx[queue] = ring->rx_pending; 259 ug_info->bdRingLenTx[queue] = ring->tx_pending; 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 /* Report driver information */ 336 static void 337 uec_get_drvinfo(struct net_device *netdev, 338 struct ethtool_drvinfo *drvinfo) 339 { 340 strlcpy(drvinfo->driver, DRV_NAME, sizeof(drvinfo->driver)); 341 strlcpy(drvinfo->version, DRV_VERSION, sizeof(drvinfo->version)); 342 strlcpy(drvinfo->fw_version, "N/A", sizeof(drvinfo->fw_version)); 343 strlcpy(drvinfo->bus_info, "QUICC ENGINE", sizeof(drvinfo->bus_info)); 344 } 345 346 #ifdef CONFIG_PM 347 348 static void uec_get_wol(struct net_device *netdev, struct ethtool_wolinfo *wol) 349 { 350 struct ucc_geth_private *ugeth = netdev_priv(netdev); 351 struct phy_device *phydev = ugeth->phydev; 352 353 if (phydev && phydev->irq) 354 wol->supported |= WAKE_PHY; 355 if (qe_alive_during_sleep()) 356 wol->supported |= WAKE_MAGIC; 357 358 wol->wolopts = ugeth->wol_en; 359 } 360 361 static int uec_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol) 362 { 363 struct ucc_geth_private *ugeth = netdev_priv(netdev); 364 struct phy_device *phydev = ugeth->phydev; 365 366 if (wol->wolopts & ~(WAKE_PHY | WAKE_MAGIC)) 367 return -EINVAL; 368 else if (wol->wolopts & WAKE_PHY && (!phydev || !phydev->irq)) 369 return -EINVAL; 370 else if (wol->wolopts & WAKE_MAGIC && !qe_alive_during_sleep()) 371 return -EINVAL; 372 373 ugeth->wol_en = wol->wolopts; 374 device_set_wakeup_enable(&netdev->dev, ugeth->wol_en); 375 376 return 0; 377 } 378 379 #else 380 #define uec_get_wol NULL 381 #define uec_set_wol NULL 382 #endif /* CONFIG_PM */ 383 384 static const struct ethtool_ops uec_ethtool_ops = { 385 .get_drvinfo = uec_get_drvinfo, 386 .get_regs_len = uec_get_regs_len, 387 .get_regs = uec_get_regs, 388 .get_msglevel = uec_get_msglevel, 389 .set_msglevel = uec_set_msglevel, 390 .nway_reset = phy_ethtool_nway_reset, 391 .get_link = ethtool_op_get_link, 392 .get_ringparam = uec_get_ringparam, 393 .set_ringparam = uec_set_ringparam, 394 .get_pauseparam = uec_get_pauseparam, 395 .set_pauseparam = uec_set_pauseparam, 396 .get_sset_count = uec_get_sset_count, 397 .get_strings = uec_get_strings, 398 .get_ethtool_stats = uec_get_ethtool_stats, 399 .get_wol = uec_get_wol, 400 .set_wol = uec_set_wol, 401 .get_ts_info = ethtool_op_get_ts_info, 402 .get_link_ksettings = uec_get_ksettings, 403 .set_link_ksettings = uec_set_ksettings, 404 }; 405 406 void uec_set_ethtool_ops(struct net_device *netdev) 407 { 408 netdev->ethtool_ops = &uec_ethtool_ops; 409 } 410