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 struct kernel_ethtool_ringparam *kernel_ring, 212 struct netlink_ext_ack *extack) 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 struct kernel_ethtool_ringparam *kernel_ring, 233 struct netlink_ext_ack *extack) 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 strscpy(drvinfo->driver, DRV_NAME, sizeof(drvinfo->driver)); 341 strscpy(drvinfo->bus_info, "QUICC ENGINE", sizeof(drvinfo->bus_info)); 342 } 343 344 #ifdef CONFIG_PM 345 346 static void uec_get_wol(struct net_device *netdev, struct ethtool_wolinfo *wol) 347 { 348 struct ucc_geth_private *ugeth = netdev_priv(netdev); 349 struct phy_device *phydev = ugeth->phydev; 350 351 if (phydev && phydev->irq) 352 wol->supported |= WAKE_PHY; 353 if (qe_alive_during_sleep()) 354 wol->supported |= WAKE_MAGIC; 355 356 wol->wolopts = ugeth->wol_en; 357 } 358 359 static int uec_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol) 360 { 361 struct ucc_geth_private *ugeth = netdev_priv(netdev); 362 struct phy_device *phydev = ugeth->phydev; 363 364 if (wol->wolopts & ~(WAKE_PHY | WAKE_MAGIC)) 365 return -EINVAL; 366 else if (wol->wolopts & WAKE_PHY && (!phydev || !phydev->irq)) 367 return -EINVAL; 368 else if (wol->wolopts & WAKE_MAGIC && !qe_alive_during_sleep()) 369 return -EINVAL; 370 371 ugeth->wol_en = wol->wolopts; 372 device_set_wakeup_enable(&netdev->dev, ugeth->wol_en); 373 374 return 0; 375 } 376 377 #else 378 #define uec_get_wol NULL 379 #define uec_set_wol NULL 380 #endif /* CONFIG_PM */ 381 382 static const struct ethtool_ops uec_ethtool_ops = { 383 .get_drvinfo = uec_get_drvinfo, 384 .get_regs_len = uec_get_regs_len, 385 .get_regs = uec_get_regs, 386 .get_msglevel = uec_get_msglevel, 387 .set_msglevel = uec_set_msglevel, 388 .nway_reset = phy_ethtool_nway_reset, 389 .get_link = ethtool_op_get_link, 390 .get_ringparam = uec_get_ringparam, 391 .set_ringparam = uec_set_ringparam, 392 .get_pauseparam = uec_get_pauseparam, 393 .set_pauseparam = uec_set_pauseparam, 394 .get_sset_count = uec_get_sset_count, 395 .get_strings = uec_get_strings, 396 .get_ethtool_stats = uec_get_ethtool_stats, 397 .get_wol = uec_get_wol, 398 .set_wol = uec_set_wol, 399 .get_ts_info = ethtool_op_get_ts_info, 400 .get_link_ksettings = uec_get_ksettings, 401 .set_link_ksettings = uec_set_ksettings, 402 }; 403 404 void uec_set_ethtool_ops(struct net_device *netdev) 405 { 406 netdev->ethtool_ops = &uec_ethtool_ops; 407 } 408