1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 3 * Copyright (c) 2007 Freescale Semiconductor, Inc. All rights reserved. 4 * 5 * Description: QE UCC Gigabit Ethernet Ethtool API Set 6 * 7 * Author: Li Yang <leoli@freescale.com> 8 * 9 * Limitation: 10 * Can only get/set settings of the first queue. 11 * Need to re-open the interface manually after changing some parameters. 12 */ 13 14 #include <linux/kernel.h> 15 #include <linux/errno.h> 16 #include <linux/stddef.h> 17 #include <linux/interrupt.h> 18 #include <linux/netdevice.h> 19 #include <linux/etherdevice.h> 20 #include <linux/skbuff.h> 21 #include <linux/spinlock.h> 22 #include <linux/mm.h> 23 #include <linux/delay.h> 24 #include <linux/dma-mapping.h> 25 #include <linux/ethtool.h> 26 #include <linux/mii.h> 27 #include <linux/phy.h> 28 29 #include <asm/io.h> 30 #include <asm/irq.h> 31 #include <linux/uaccess.h> 32 #include <asm/types.h> 33 34 #include "ucc_geth.h" 35 36 static const char hw_stat_gstrings[][ETH_GSTRING_LEN] = { 37 "tx-64-frames", 38 "tx-65-127-frames", 39 "tx-128-255-frames", 40 "rx-64-frames", 41 "rx-65-127-frames", 42 "rx-128-255-frames", 43 "tx-bytes-ok", 44 "tx-pause-frames", 45 "tx-multicast-frames", 46 "tx-broadcast-frames", 47 "rx-frames", 48 "rx-bytes-ok", 49 "rx-bytes-all", 50 "rx-multicast-frames", 51 "rx-broadcast-frames", 52 "stats-counter-carry", 53 "stats-counter-mask", 54 "rx-dropped-frames", 55 }; 56 57 static const char tx_fw_stat_gstrings[][ETH_GSTRING_LEN] = { 58 "tx-single-collision", 59 "tx-multiple-collision", 60 "tx-late-collision", 61 "tx-aborted-frames", 62 "tx-lost-frames", 63 "tx-carrier-sense-errors", 64 "tx-frames-ok", 65 "tx-excessive-differ-frames", 66 "tx-256-511-frames", 67 "tx-512-1023-frames", 68 "tx-1024-1518-frames", 69 "tx-jumbo-frames", 70 }; 71 72 static const char rx_fw_stat_gstrings[][ETH_GSTRING_LEN] = { 73 "rx-crc-errors", 74 "rx-alignment-errors", 75 "rx-in-range-length-errors", 76 "rx-out-of-range-length-errors", 77 "rx-too-long-frames", 78 "rx-runt", 79 "rx-very-long-event", 80 "rx-symbol-errors", 81 "rx-busy-drop-frames", 82 "reserved", 83 "reserved", 84 "rx-mismatch-drop-frames", 85 "rx-small-than-64", 86 "rx-256-511-frames", 87 "rx-512-1023-frames", 88 "rx-1024-1518-frames", 89 "rx-jumbo-frames", 90 "rx-mac-error-loss", 91 "rx-pause-frames", 92 "reserved", 93 "rx-vlan-removed", 94 "rx-vlan-replaced", 95 "rx-vlan-inserted", 96 "rx-ip-checksum-errors", 97 }; 98 99 #define UEC_HW_STATS_LEN ARRAY_SIZE(hw_stat_gstrings) 100 #define UEC_TX_FW_STATS_LEN ARRAY_SIZE(tx_fw_stat_gstrings) 101 #define UEC_RX_FW_STATS_LEN ARRAY_SIZE(rx_fw_stat_gstrings) 102 103 static int 104 uec_get_ksettings(struct net_device *netdev, struct ethtool_link_ksettings *cmd) 105 { 106 struct ucc_geth_private *ugeth = netdev_priv(netdev); 107 struct phy_device *phydev = ugeth->phydev; 108 109 if (!phydev) 110 return -ENODEV; 111 112 phy_ethtool_ksettings_get(phydev, cmd); 113 114 return 0; 115 } 116 117 static int 118 uec_set_ksettings(struct net_device *netdev, 119 const struct ethtool_link_ksettings *cmd) 120 { 121 struct ucc_geth_private *ugeth = netdev_priv(netdev); 122 struct phy_device *phydev = ugeth->phydev; 123 124 if (!phydev) 125 return -ENODEV; 126 127 return phy_ethtool_ksettings_set(phydev, cmd); 128 } 129 130 static void 131 uec_get_pauseparam(struct net_device *netdev, 132 struct ethtool_pauseparam *pause) 133 { 134 struct ucc_geth_private *ugeth = netdev_priv(netdev); 135 136 pause->autoneg = ugeth->phydev->autoneg; 137 138 if (ugeth->ug_info->receiveFlowControl) 139 pause->rx_pause = 1; 140 if (ugeth->ug_info->transmitFlowControl) 141 pause->tx_pause = 1; 142 } 143 144 static int 145 uec_set_pauseparam(struct net_device *netdev, 146 struct ethtool_pauseparam *pause) 147 { 148 struct ucc_geth_private *ugeth = netdev_priv(netdev); 149 int ret = 0; 150 151 ugeth->ug_info->receiveFlowControl = pause->rx_pause; 152 ugeth->ug_info->transmitFlowControl = pause->tx_pause; 153 154 if (ugeth->phydev->autoneg) { 155 if (netif_running(netdev)) { 156 /* FIXME: automatically restart */ 157 netdev_info(netdev, "Please re-open the interface\n"); 158 } 159 } else { 160 struct ucc_geth_info *ug_info = ugeth->ug_info; 161 162 ret = init_flow_control_params(ug_info->aufc, 163 ug_info->receiveFlowControl, 164 ug_info->transmitFlowControl, 165 ug_info->pausePeriod, 166 ug_info->extensionField, 167 &ugeth->uccf->uf_regs->upsmr, 168 &ugeth->ug_regs->uempr, 169 &ugeth->ug_regs->maccfg1); 170 } 171 172 return ret; 173 } 174 175 static uint32_t 176 uec_get_msglevel(struct net_device *netdev) 177 { 178 struct ucc_geth_private *ugeth = netdev_priv(netdev); 179 return ugeth->msg_enable; 180 } 181 182 static void 183 uec_set_msglevel(struct net_device *netdev, uint32_t data) 184 { 185 struct ucc_geth_private *ugeth = netdev_priv(netdev); 186 ugeth->msg_enable = data; 187 } 188 189 static int 190 uec_get_regs_len(struct net_device *netdev) 191 { 192 return sizeof(struct ucc_geth); 193 } 194 195 static void 196 uec_get_regs(struct net_device *netdev, 197 struct ethtool_regs *regs, void *p) 198 { 199 int i; 200 struct ucc_geth_private *ugeth = netdev_priv(netdev); 201 u32 __iomem *ug_regs = (u32 __iomem *)ugeth->ug_regs; 202 u32 *buff = p; 203 204 for (i = 0; i < sizeof(struct ucc_geth) / sizeof(u32); i++) 205 buff[i] = in_be32(&ug_regs[i]); 206 } 207 208 static void 209 uec_get_ringparam(struct net_device *netdev, 210 struct ethtool_ringparam *ring) 211 { 212 struct ucc_geth_private *ugeth = netdev_priv(netdev); 213 struct ucc_geth_info *ug_info = ugeth->ug_info; 214 int queue = 0; 215 216 ring->rx_max_pending = UCC_GETH_BD_RING_SIZE_MAX; 217 ring->rx_mini_max_pending = UCC_GETH_BD_RING_SIZE_MAX; 218 ring->rx_jumbo_max_pending = UCC_GETH_BD_RING_SIZE_MAX; 219 ring->tx_max_pending = UCC_GETH_BD_RING_SIZE_MAX; 220 221 ring->rx_pending = ug_info->bdRingLenRx[queue]; 222 ring->rx_mini_pending = ug_info->bdRingLenRx[queue]; 223 ring->rx_jumbo_pending = ug_info->bdRingLenRx[queue]; 224 ring->tx_pending = ug_info->bdRingLenTx[queue]; 225 } 226 227 static int 228 uec_set_ringparam(struct net_device *netdev, 229 struct ethtool_ringparam *ring) 230 { 231 struct ucc_geth_private *ugeth = netdev_priv(netdev); 232 struct ucc_geth_info *ug_info = ugeth->ug_info; 233 int queue = 0, ret = 0; 234 235 if (ring->rx_pending < UCC_GETH_RX_BD_RING_SIZE_MIN) { 236 netdev_info(netdev, "RxBD ring size must be no smaller than %d\n", 237 UCC_GETH_RX_BD_RING_SIZE_MIN); 238 return -EINVAL; 239 } 240 if (ring->rx_pending % UCC_GETH_RX_BD_RING_SIZE_ALIGNMENT) { 241 netdev_info(netdev, "RxBD ring size must be multiple of %d\n", 242 UCC_GETH_RX_BD_RING_SIZE_ALIGNMENT); 243 return -EINVAL; 244 } 245 if (ring->tx_pending < UCC_GETH_TX_BD_RING_SIZE_MIN) { 246 netdev_info(netdev, "TxBD ring size must be no smaller than %d\n", 247 UCC_GETH_TX_BD_RING_SIZE_MIN); 248 return -EINVAL; 249 } 250 251 if (netif_running(netdev)) 252 return -EBUSY; 253 254 ug_info->bdRingLenRx[queue] = ring->rx_pending; 255 ug_info->bdRingLenTx[queue] = ring->tx_pending; 256 257 return ret; 258 } 259 260 static int uec_get_sset_count(struct net_device *netdev, int sset) 261 { 262 struct ucc_geth_private *ugeth = netdev_priv(netdev); 263 u32 stats_mode = ugeth->ug_info->statisticsMode; 264 int len = 0; 265 266 switch (sset) { 267 case ETH_SS_STATS: 268 if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_HARDWARE) 269 len += UEC_HW_STATS_LEN; 270 if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX) 271 len += UEC_TX_FW_STATS_LEN; 272 if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX) 273 len += UEC_RX_FW_STATS_LEN; 274 275 return len; 276 277 default: 278 return -EOPNOTSUPP; 279 } 280 } 281 282 static void uec_get_strings(struct net_device *netdev, u32 stringset, u8 *buf) 283 { 284 struct ucc_geth_private *ugeth = netdev_priv(netdev); 285 u32 stats_mode = ugeth->ug_info->statisticsMode; 286 287 if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_HARDWARE) { 288 memcpy(buf, hw_stat_gstrings, UEC_HW_STATS_LEN * 289 ETH_GSTRING_LEN); 290 buf += UEC_HW_STATS_LEN * ETH_GSTRING_LEN; 291 } 292 if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX) { 293 memcpy(buf, tx_fw_stat_gstrings, UEC_TX_FW_STATS_LEN * 294 ETH_GSTRING_LEN); 295 buf += UEC_TX_FW_STATS_LEN * ETH_GSTRING_LEN; 296 } 297 if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX) 298 memcpy(buf, rx_fw_stat_gstrings, UEC_RX_FW_STATS_LEN * 299 ETH_GSTRING_LEN); 300 } 301 302 static void uec_get_ethtool_stats(struct net_device *netdev, 303 struct ethtool_stats *stats, uint64_t *data) 304 { 305 struct ucc_geth_private *ugeth = netdev_priv(netdev); 306 u32 stats_mode = ugeth->ug_info->statisticsMode; 307 u32 __iomem *base; 308 int i, j = 0; 309 310 if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_HARDWARE) { 311 if (ugeth->ug_regs) 312 base = (u32 __iomem *)&ugeth->ug_regs->tx64; 313 else 314 base = NULL; 315 316 for (i = 0; i < UEC_HW_STATS_LEN; i++) 317 data[j++] = base ? in_be32(&base[i]) : 0; 318 } 319 if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX) { 320 base = (u32 __iomem *)ugeth->p_tx_fw_statistics_pram; 321 for (i = 0; i < UEC_TX_FW_STATS_LEN; i++) 322 data[j++] = base ? in_be32(&base[i]) : 0; 323 } 324 if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX) { 325 base = (u32 __iomem *)ugeth->p_rx_fw_statistics_pram; 326 for (i = 0; i < UEC_RX_FW_STATS_LEN; i++) 327 data[j++] = base ? in_be32(&base[i]) : 0; 328 } 329 } 330 331 /* Report driver information */ 332 static void 333 uec_get_drvinfo(struct net_device *netdev, 334 struct ethtool_drvinfo *drvinfo) 335 { 336 strlcpy(drvinfo->driver, DRV_NAME, sizeof(drvinfo->driver)); 337 strlcpy(drvinfo->version, DRV_VERSION, sizeof(drvinfo->version)); 338 strlcpy(drvinfo->fw_version, "N/A", sizeof(drvinfo->fw_version)); 339 strlcpy(drvinfo->bus_info, "QUICC ENGINE", sizeof(drvinfo->bus_info)); 340 } 341 342 #ifdef CONFIG_PM 343 344 static void uec_get_wol(struct net_device *netdev, struct ethtool_wolinfo *wol) 345 { 346 struct ucc_geth_private *ugeth = netdev_priv(netdev); 347 struct phy_device *phydev = ugeth->phydev; 348 349 if (phydev && phydev->irq) 350 wol->supported |= WAKE_PHY; 351 if (qe_alive_during_sleep()) 352 wol->supported |= WAKE_MAGIC; 353 354 wol->wolopts = ugeth->wol_en; 355 } 356 357 static int uec_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol) 358 { 359 struct ucc_geth_private *ugeth = netdev_priv(netdev); 360 struct phy_device *phydev = ugeth->phydev; 361 362 if (wol->wolopts & ~(WAKE_PHY | WAKE_MAGIC)) 363 return -EINVAL; 364 else if (wol->wolopts & WAKE_PHY && (!phydev || !phydev->irq)) 365 return -EINVAL; 366 else if (wol->wolopts & WAKE_MAGIC && !qe_alive_during_sleep()) 367 return -EINVAL; 368 369 ugeth->wol_en = wol->wolopts; 370 device_set_wakeup_enable(&netdev->dev, ugeth->wol_en); 371 372 return 0; 373 } 374 375 #else 376 #define uec_get_wol NULL 377 #define uec_set_wol NULL 378 #endif /* CONFIG_PM */ 379 380 static const struct ethtool_ops uec_ethtool_ops = { 381 .get_drvinfo = uec_get_drvinfo, 382 .get_regs_len = uec_get_regs_len, 383 .get_regs = uec_get_regs, 384 .get_msglevel = uec_get_msglevel, 385 .set_msglevel = uec_set_msglevel, 386 .nway_reset = phy_ethtool_nway_reset, 387 .get_link = ethtool_op_get_link, 388 .get_ringparam = uec_get_ringparam, 389 .set_ringparam = uec_set_ringparam, 390 .get_pauseparam = uec_get_pauseparam, 391 .set_pauseparam = uec_set_pauseparam, 392 .get_sset_count = uec_get_sset_count, 393 .get_strings = uec_get_strings, 394 .get_ethtool_stats = uec_get_ethtool_stats, 395 .get_wol = uec_get_wol, 396 .set_wol = uec_set_wol, 397 .get_ts_info = ethtool_op_get_ts_info, 398 .get_link_ksettings = uec_get_ksettings, 399 .set_link_ksettings = uec_set_ksettings, 400 }; 401 402 void uec_set_ethtool_ops(struct net_device *netdev) 403 { 404 netdev->ethtool_ops = &uec_ethtool_ops; 405 } 406