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 setttings 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/init.h> 20#include <linux/errno.h> 21#include <linux/stddef.h> 22#include <linux/interrupt.h> 23#include <linux/netdevice.h> 24#include <linux/etherdevice.h> 25#include <linux/skbuff.h> 26#include <linux/spinlock.h> 27#include <linux/mm.h> 28#include <linux/delay.h> 29#include <linux/dma-mapping.h> 30#include <linux/ethtool.h> 31#include <linux/mii.h> 32#include <linux/phy.h> 33 34#include <asm/io.h> 35#include <asm/irq.h> 36#include <asm/uaccess.h> 37#include <asm/types.h> 38 39#include "ucc_geth.h" 40 41static char hw_stat_gstrings[][ETH_GSTRING_LEN] = { 42 "tx-64-frames", 43 "tx-65-127-frames", 44 "tx-128-255-frames", 45 "rx-64-frames", 46 "rx-65-127-frames", 47 "rx-128-255-frames", 48 "tx-bytes-ok", 49 "tx-pause-frames", 50 "tx-multicast-frames", 51 "tx-broadcast-frames", 52 "rx-frames", 53 "rx-bytes-ok", 54 "rx-bytes-all", 55 "rx-multicast-frames", 56 "rx-broadcast-frames", 57 "stats-counter-carry", 58 "stats-counter-mask", 59 "rx-dropped-frames", 60}; 61 62static char tx_fw_stat_gstrings[][ETH_GSTRING_LEN] = { 63 "tx-single-collision", 64 "tx-multiple-collision", 65 "tx-late-collsion", 66 "tx-aborted-frames", 67 "tx-lost-frames", 68 "tx-carrier-sense-errors", 69 "tx-frames-ok", 70 "tx-excessive-differ-frames", 71 "tx-256-511-frames", 72 "tx-512-1023-frames", 73 "tx-1024-1518-frames", 74 "tx-jumbo-frames", 75}; 76 77static char rx_fw_stat_gstrings[][ETH_GSTRING_LEN] = { 78 "rx-crc-errors", 79 "rx-alignment-errors", 80 "rx-in-range-length-errors", 81 "rx-out-of-range-length-errors", 82 "rx-too-long-frames", 83 "rx-runt", 84 "rx-very-long-event", 85 "rx-symbol-errors", 86 "rx-busy-drop-frames", 87 "reserved", 88 "reserved", 89 "rx-mismatch-drop-frames", 90 "rx-small-than-64", 91 "rx-256-511-frames", 92 "rx-512-1023-frames", 93 "rx-1024-1518-frames", 94 "rx-jumbo-frames", 95 "rx-mac-error-loss", 96 "rx-pause-frames", 97 "reserved", 98 "rx-vlan-removed", 99 "rx-vlan-replaced", 100 "rx-vlan-inserted", 101 "rx-ip-checksum-errors", 102}; 103 104#define UEC_HW_STATS_LEN ARRAY_SIZE(hw_stat_gstrings) 105#define UEC_TX_FW_STATS_LEN ARRAY_SIZE(tx_fw_stat_gstrings) 106#define UEC_RX_FW_STATS_LEN ARRAY_SIZE(rx_fw_stat_gstrings) 107 108static int 109uec_get_settings(struct net_device *netdev, struct ethtool_cmd *ecmd) 110{ 111 struct ucc_geth_private *ugeth = netdev_priv(netdev); 112 struct phy_device *phydev = ugeth->phydev; 113 struct ucc_geth_info *ug_info = ugeth->ug_info; 114 115 if (!phydev) 116 return -ENODEV; 117 118 ecmd->maxtxpkt = 1; 119 ecmd->maxrxpkt = ug_info->interruptcoalescingmaxvalue[0]; 120 121 return phy_ethtool_gset(phydev, ecmd); 122} 123 124static int 125uec_set_settings(struct net_device *netdev, struct ethtool_cmd *ecmd) 126{ 127 struct ucc_geth_private *ugeth = netdev_priv(netdev); 128 struct phy_device *phydev = ugeth->phydev; 129 130 if (!phydev) 131 return -ENODEV; 132 133 return phy_ethtool_sset(phydev, ecmd); 134} 135 136static void 137uec_get_pauseparam(struct net_device *netdev, 138 struct ethtool_pauseparam *pause) 139{ 140 struct ucc_geth_private *ugeth = netdev_priv(netdev); 141 142 pause->autoneg = ugeth->phydev->autoneg; 143 144 if (ugeth->ug_info->receiveFlowControl) 145 pause->rx_pause = 1; 146 if (ugeth->ug_info->transmitFlowControl) 147 pause->tx_pause = 1; 148} 149 150static int 151uec_set_pauseparam(struct net_device *netdev, 152 struct ethtool_pauseparam *pause) 153{ 154 struct ucc_geth_private *ugeth = netdev_priv(netdev); 155 int ret = 0; 156 157 ugeth->ug_info->receiveFlowControl = pause->rx_pause; 158 ugeth->ug_info->transmitFlowControl = pause->tx_pause; 159 160 if (ugeth->phydev->autoneg) { 161 if (netif_running(netdev)) { 162 printk(KERN_INFO 163 "Please re-open the interface.\n"); 164 } 165 } else { 166 struct ucc_geth_info *ug_info = ugeth->ug_info; 167 168 ret = init_flow_control_params(ug_info->aufc, 169 ug_info->receiveFlowControl, 170 ug_info->transmitFlowControl, 171 ug_info->pausePeriod, 172 ug_info->extensionField, 173 &ugeth->uccf->uf_regs->upsmr, 174 &ugeth->ug_regs->uempr, 175 &ugeth->ug_regs->maccfg1); 176 } 177 178 return ret; 179} 180 181static uint32_t 182uec_get_msglevel(struct net_device *netdev) 183{ 184 struct ucc_geth_private *ugeth = netdev_priv(netdev); 185 return ugeth->msg_enable; 186} 187 188static void 189uec_set_msglevel(struct net_device *netdev, uint32_t data) 190{ 191 struct ucc_geth_private *ugeth = netdev_priv(netdev); 192 ugeth->msg_enable = data; 193} 194 195static int 196uec_get_regs_len(struct net_device *netdev) 197{ 198 return sizeof(struct ucc_geth); 199} 200 201static void 202uec_get_regs(struct net_device *netdev, 203 struct ethtool_regs *regs, void *p) 204{ 205 int i; 206 struct ucc_geth_private *ugeth = netdev_priv(netdev); 207 u32 __iomem *ug_regs = (u32 __iomem *)ugeth->ug_regs; 208 u32 *buff = p; 209 210 for (i = 0; i < sizeof(struct ucc_geth) / sizeof(u32); i++) 211 buff[i] = in_be32(&ug_regs[i]); 212} 213 214static void 215uec_get_ringparam(struct net_device *netdev, 216 struct ethtool_ringparam *ring) 217{ 218 struct ucc_geth_private *ugeth = netdev_priv(netdev); 219 struct ucc_geth_info *ug_info = ugeth->ug_info; 220 int queue = 0; 221 222 ring->rx_max_pending = UCC_GETH_BD_RING_SIZE_MAX; 223 ring->rx_mini_max_pending = UCC_GETH_BD_RING_SIZE_MAX; 224 ring->rx_jumbo_max_pending = UCC_GETH_BD_RING_SIZE_MAX; 225 ring->tx_max_pending = UCC_GETH_BD_RING_SIZE_MAX; 226 227 ring->rx_pending = ug_info->bdRingLenRx[queue]; 228 ring->rx_mini_pending = ug_info->bdRingLenRx[queue]; 229 ring->rx_jumbo_pending = ug_info->bdRingLenRx[queue]; 230 ring->tx_pending = ug_info->bdRingLenTx[queue]; 231} 232 233static int 234uec_set_ringparam(struct net_device *netdev, 235 struct ethtool_ringparam *ring) 236{ 237 struct ucc_geth_private *ugeth = netdev_priv(netdev); 238 struct ucc_geth_info *ug_info = ugeth->ug_info; 239 int queue = 0, ret = 0; 240 241 if (ring->rx_pending < UCC_GETH_RX_BD_RING_SIZE_MIN) { 242 printk("%s: RxBD ring size must be no smaller than %d.\n", 243 netdev->name, UCC_GETH_RX_BD_RING_SIZE_MIN); 244 return -EINVAL; 245 } 246 if (ring->rx_pending % UCC_GETH_RX_BD_RING_SIZE_ALIGNMENT) { 247 printk("%s: RxBD ring size must be multiple of %d.\n", 248 netdev->name, UCC_GETH_RX_BD_RING_SIZE_ALIGNMENT); 249 return -EINVAL; 250 } 251 if (ring->tx_pending < UCC_GETH_TX_BD_RING_SIZE_MIN) { 252 printk("%s: TxBD ring size must be no smaller than %d.\n", 253 netdev->name, UCC_GETH_TX_BD_RING_SIZE_MIN); 254 return -EINVAL; 255 } 256 257 ug_info->bdRingLenRx[queue] = ring->rx_pending; 258 ug_info->bdRingLenTx[queue] = ring->tx_pending; 259 260 if (netif_running(netdev)) { 261 printk(KERN_INFO 262 "Please re-open the interface.\n"); 263 } 264 265 return ret; 266} 267 268static int uec_get_sset_count(struct net_device *netdev, int sset) 269{ 270 struct ucc_geth_private *ugeth = netdev_priv(netdev); 271 u32 stats_mode = ugeth->ug_info->statisticsMode; 272 int len = 0; 273 274 switch (sset) { 275 case ETH_SS_STATS: 276 if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_HARDWARE) 277 len += UEC_HW_STATS_LEN; 278 if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX) 279 len += UEC_TX_FW_STATS_LEN; 280 if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX) 281 len += UEC_RX_FW_STATS_LEN; 282 283 return len; 284 285 default: 286 return -EOPNOTSUPP; 287 } 288} 289 290static void uec_get_strings(struct net_device *netdev, u32 stringset, u8 *buf) 291{ 292 struct ucc_geth_private *ugeth = netdev_priv(netdev); 293 u32 stats_mode = ugeth->ug_info->statisticsMode; 294 295 if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_HARDWARE) { 296 memcpy(buf, hw_stat_gstrings, UEC_HW_STATS_LEN * 297 ETH_GSTRING_LEN); 298 buf += UEC_HW_STATS_LEN * ETH_GSTRING_LEN; 299 } 300 if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX) { 301 memcpy(buf, tx_fw_stat_gstrings, UEC_TX_FW_STATS_LEN * 302 ETH_GSTRING_LEN); 303 buf += UEC_TX_FW_STATS_LEN * ETH_GSTRING_LEN; 304 } 305 if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX) 306 memcpy(buf, rx_fw_stat_gstrings, UEC_RX_FW_STATS_LEN * 307 ETH_GSTRING_LEN); 308} 309 310static void uec_get_ethtool_stats(struct net_device *netdev, 311 struct ethtool_stats *stats, uint64_t *data) 312{ 313 struct ucc_geth_private *ugeth = netdev_priv(netdev); 314 u32 stats_mode = ugeth->ug_info->statisticsMode; 315 u32 __iomem *base; 316 int i, j = 0; 317 318 if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_HARDWARE) { 319 if (ugeth->ug_regs) 320 base = (u32 __iomem *)&ugeth->ug_regs->tx64; 321 else 322 base = NULL; 323 324 for (i = 0; i < UEC_HW_STATS_LEN; i++) 325 data[j++] = base ? in_be32(&base[i]) : 0; 326 } 327 if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX) { 328 base = (u32 __iomem *)ugeth->p_tx_fw_statistics_pram; 329 for (i = 0; i < UEC_TX_FW_STATS_LEN; i++) 330 data[j++] = base ? in_be32(&base[i]) : 0; 331 } 332 if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX) { 333 base = (u32 __iomem *)ugeth->p_rx_fw_statistics_pram; 334 for (i = 0; i < UEC_RX_FW_STATS_LEN; i++) 335 data[j++] = base ? in_be32(&base[i]) : 0; 336 } 337} 338 339static int uec_nway_reset(struct net_device *netdev) 340{ 341 struct ucc_geth_private *ugeth = netdev_priv(netdev); 342 343 return phy_start_aneg(ugeth->phydev); 344} 345 346/* Report driver information */ 347static void 348uec_get_drvinfo(struct net_device *netdev, 349 struct ethtool_drvinfo *drvinfo) 350{ 351 strncpy(drvinfo->driver, DRV_NAME, 32); 352 strncpy(drvinfo->version, DRV_VERSION, 32); 353 strncpy(drvinfo->fw_version, "N/A", 32); 354 strncpy(drvinfo->bus_info, "QUICC ENGINE", 32); 355 drvinfo->eedump_len = 0; 356 drvinfo->regdump_len = uec_get_regs_len(netdev); 357} 358 359#ifdef CONFIG_PM 360 361static void uec_get_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 (phydev && phydev->irq) 367 wol->supported |= WAKE_PHY; 368 if (qe_alive_during_sleep()) 369 wol->supported |= WAKE_MAGIC; 370 371 wol->wolopts = ugeth->wol_en; 372} 373 374static int uec_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol) 375{ 376 struct ucc_geth_private *ugeth = netdev_priv(netdev); 377 struct phy_device *phydev = ugeth->phydev; 378 379 if (wol->wolopts & ~(WAKE_PHY | WAKE_MAGIC)) 380 return -EINVAL; 381 else if (wol->wolopts & WAKE_PHY && (!phydev || !phydev->irq)) 382 return -EINVAL; 383 else if (wol->wolopts & WAKE_MAGIC && !qe_alive_during_sleep()) 384 return -EINVAL; 385 386 ugeth->wol_en = wol->wolopts; 387 device_set_wakeup_enable(&netdev->dev, ugeth->wol_en); 388 389 return 0; 390} 391 392#else 393#define uec_get_wol NULL 394#define uec_set_wol NULL 395#endif /* CONFIG_PM */ 396 397static const struct ethtool_ops uec_ethtool_ops = { 398 .get_settings = uec_get_settings, 399 .set_settings = uec_set_settings, 400 .get_drvinfo = uec_get_drvinfo, 401 .get_regs_len = uec_get_regs_len, 402 .get_regs = uec_get_regs, 403 .get_msglevel = uec_get_msglevel, 404 .set_msglevel = uec_set_msglevel, 405 .nway_reset = uec_nway_reset, 406 .get_link = ethtool_op_get_link, 407 .get_ringparam = uec_get_ringparam, 408 .set_ringparam = uec_set_ringparam, 409 .get_pauseparam = uec_get_pauseparam, 410 .set_pauseparam = uec_set_pauseparam, 411 .set_sg = ethtool_op_set_sg, 412 .get_sset_count = uec_get_sset_count, 413 .get_strings = uec_get_strings, 414 .get_ethtool_stats = uec_get_ethtool_stats, 415 .get_wol = uec_get_wol, 416 .set_wol = uec_set_wol, 417}; 418 419void uec_set_ethtool_ops(struct net_device *netdev) 420{ 421 SET_ETHTOOL_OPS(netdev, &uec_ethtool_ops); 422} 423