1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* Aquantia Corp. Aquantia AQtion USB to 5GbE Controller 3 * Copyright (C) 2003-2005 David Hollis <dhollis@davehollis.com> 4 * Copyright (C) 2005 Phil Chang <pchang23@sbcglobal.net> 5 * Copyright (C) 2002-2003 TiVo Inc. 6 * Copyright (C) 2017-2018 ASIX 7 * Copyright (C) 2018 Aquantia Corp. 8 */ 9 10 #include <linux/module.h> 11 #include <linux/netdevice.h> 12 #include <linux/ethtool.h> 13 #include <linux/mii.h> 14 #include <linux/usb.h> 15 #include <linux/crc32.h> 16 #include <linux/if_vlan.h> 17 #include <linux/usb/cdc.h> 18 #include <linux/usb/usbnet.h> 19 #include <linux/linkmode.h> 20 21 #include "aqc111.h" 22 23 #define DRIVER_NAME "aqc111" 24 25 static int aqc111_read_cmd_nopm(struct usbnet *dev, u8 cmd, u16 value, 26 u16 index, u16 size, void *data) 27 { 28 int ret; 29 30 ret = usbnet_read_cmd_nopm(dev, cmd, USB_DIR_IN | USB_TYPE_VENDOR | 31 USB_RECIP_DEVICE, value, index, data, size); 32 33 if (unlikely(ret < 0)) 34 netdev_warn(dev->net, 35 "Failed to read(0x%x) reg index 0x%04x: %d\n", 36 cmd, index, ret); 37 38 return ret; 39 } 40 41 static int aqc111_read_cmd(struct usbnet *dev, u8 cmd, u16 value, 42 u16 index, u16 size, void *data) 43 { 44 int ret; 45 46 ret = usbnet_read_cmd(dev, cmd, USB_DIR_IN | USB_TYPE_VENDOR | 47 USB_RECIP_DEVICE, value, index, data, size); 48 49 if (unlikely(ret < 0)) 50 netdev_warn(dev->net, 51 "Failed to read(0x%x) reg index 0x%04x: %d\n", 52 cmd, index, ret); 53 54 return ret; 55 } 56 57 static int aqc111_read16_cmd_nopm(struct usbnet *dev, u8 cmd, u16 value, 58 u16 index, u16 *data) 59 { 60 int ret = 0; 61 62 ret = aqc111_read_cmd_nopm(dev, cmd, value, index, sizeof(*data), data); 63 le16_to_cpus(data); 64 65 return ret; 66 } 67 68 static int aqc111_read16_cmd(struct usbnet *dev, u8 cmd, u16 value, 69 u16 index, u16 *data) 70 { 71 int ret = 0; 72 73 ret = aqc111_read_cmd(dev, cmd, value, index, sizeof(*data), data); 74 le16_to_cpus(data); 75 76 return ret; 77 } 78 79 static int __aqc111_write_cmd(struct usbnet *dev, u8 cmd, u8 reqtype, 80 u16 value, u16 index, u16 size, const void *data) 81 { 82 int err = -ENOMEM; 83 void *buf = NULL; 84 85 netdev_dbg(dev->net, 86 "%s cmd=%#x reqtype=%#x value=%#x index=%#x size=%d\n", 87 __func__, cmd, reqtype, value, index, size); 88 89 if (data) { 90 buf = kmemdup(data, size, GFP_KERNEL); 91 if (!buf) 92 goto out; 93 } 94 95 err = usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0), 96 cmd, reqtype, value, index, buf, size, 97 (cmd == AQ_PHY_POWER) ? AQ_USB_PHY_SET_TIMEOUT : 98 AQ_USB_SET_TIMEOUT); 99 100 if (unlikely(err < 0)) 101 netdev_warn(dev->net, 102 "Failed to write(0x%x) reg index 0x%04x: %d\n", 103 cmd, index, err); 104 kfree(buf); 105 106 out: 107 return err; 108 } 109 110 static int aqc111_write_cmd_nopm(struct usbnet *dev, u8 cmd, u16 value, 111 u16 index, u16 size, void *data) 112 { 113 int ret; 114 115 ret = __aqc111_write_cmd(dev, cmd, USB_DIR_OUT | USB_TYPE_VENDOR | 116 USB_RECIP_DEVICE, value, index, size, data); 117 118 return ret; 119 } 120 121 static int aqc111_write_cmd(struct usbnet *dev, u8 cmd, u16 value, 122 u16 index, u16 size, void *data) 123 { 124 int ret; 125 126 if (usb_autopm_get_interface(dev->intf) < 0) 127 return -ENODEV; 128 129 ret = __aqc111_write_cmd(dev, cmd, USB_DIR_OUT | USB_TYPE_VENDOR | 130 USB_RECIP_DEVICE, value, index, size, data); 131 132 usb_autopm_put_interface(dev->intf); 133 134 return ret; 135 } 136 137 static int aqc111_write16_cmd_nopm(struct usbnet *dev, u8 cmd, u16 value, 138 u16 index, u16 *data) 139 { 140 u16 tmp = *data; 141 142 cpu_to_le16s(&tmp); 143 144 return aqc111_write_cmd_nopm(dev, cmd, value, index, sizeof(tmp), &tmp); 145 } 146 147 static int aqc111_write16_cmd(struct usbnet *dev, u8 cmd, u16 value, 148 u16 index, u16 *data) 149 { 150 u16 tmp = *data; 151 152 cpu_to_le16s(&tmp); 153 154 return aqc111_write_cmd(dev, cmd, value, index, sizeof(tmp), &tmp); 155 } 156 157 static int aqc111_write32_cmd_nopm(struct usbnet *dev, u8 cmd, u16 value, 158 u16 index, u32 *data) 159 { 160 u32 tmp = *data; 161 162 cpu_to_le32s(&tmp); 163 164 return aqc111_write_cmd_nopm(dev, cmd, value, index, sizeof(tmp), &tmp); 165 } 166 167 static int aqc111_write32_cmd(struct usbnet *dev, u8 cmd, u16 value, 168 u16 index, u32 *data) 169 { 170 u32 tmp = *data; 171 172 cpu_to_le32s(&tmp); 173 174 return aqc111_write_cmd(dev, cmd, value, index, sizeof(tmp), &tmp); 175 } 176 177 static int aqc111_write_cmd_async(struct usbnet *dev, u8 cmd, u16 value, 178 u16 index, u16 size, void *data) 179 { 180 return usbnet_write_cmd_async(dev, cmd, USB_DIR_OUT | USB_TYPE_VENDOR | 181 USB_RECIP_DEVICE, value, index, data, 182 size); 183 } 184 185 static int aqc111_write16_cmd_async(struct usbnet *dev, u8 cmd, u16 value, 186 u16 index, u16 *data) 187 { 188 u16 tmp = *data; 189 190 cpu_to_le16s(&tmp); 191 192 return aqc111_write_cmd_async(dev, cmd, value, index, 193 sizeof(tmp), &tmp); 194 } 195 196 static void aqc111_get_drvinfo(struct net_device *net, 197 struct ethtool_drvinfo *info) 198 { 199 struct usbnet *dev = netdev_priv(net); 200 struct aqc111_data *aqc111_data = dev->driver_priv; 201 202 /* Inherit standard device info */ 203 usbnet_get_drvinfo(net, info); 204 strlcpy(info->driver, DRIVER_NAME, sizeof(info->driver)); 205 snprintf(info->fw_version, sizeof(info->fw_version), "%u.%u.%u", 206 aqc111_data->fw_ver.major, 207 aqc111_data->fw_ver.minor, 208 aqc111_data->fw_ver.rev); 209 info->eedump_len = 0x00; 210 info->regdump_len = 0x00; 211 } 212 213 static void aqc111_get_wol(struct net_device *net, 214 struct ethtool_wolinfo *wolinfo) 215 { 216 struct usbnet *dev = netdev_priv(net); 217 struct aqc111_data *aqc111_data = dev->driver_priv; 218 219 wolinfo->supported = WAKE_MAGIC; 220 wolinfo->wolopts = 0; 221 222 if (aqc111_data->wol_flags & AQ_WOL_FLAG_MP) 223 wolinfo->wolopts |= WAKE_MAGIC; 224 } 225 226 static int aqc111_set_wol(struct net_device *net, 227 struct ethtool_wolinfo *wolinfo) 228 { 229 struct usbnet *dev = netdev_priv(net); 230 struct aqc111_data *aqc111_data = dev->driver_priv; 231 232 if (wolinfo->wolopts & ~WAKE_MAGIC) 233 return -EINVAL; 234 235 aqc111_data->wol_flags = 0; 236 if (wolinfo->wolopts & WAKE_MAGIC) 237 aqc111_data->wol_flags |= AQ_WOL_FLAG_MP; 238 239 return 0; 240 } 241 242 static void aqc111_speed_to_link_mode(u32 speed, 243 struct ethtool_link_ksettings *elk) 244 { 245 switch (speed) { 246 case SPEED_5000: 247 ethtool_link_ksettings_add_link_mode(elk, advertising, 248 5000baseT_Full); 249 break; 250 case SPEED_2500: 251 ethtool_link_ksettings_add_link_mode(elk, advertising, 252 2500baseT_Full); 253 break; 254 case SPEED_1000: 255 ethtool_link_ksettings_add_link_mode(elk, advertising, 256 1000baseT_Full); 257 break; 258 case SPEED_100: 259 ethtool_link_ksettings_add_link_mode(elk, advertising, 260 100baseT_Full); 261 break; 262 } 263 } 264 265 static int aqc111_get_link_ksettings(struct net_device *net, 266 struct ethtool_link_ksettings *elk) 267 { 268 struct usbnet *dev = netdev_priv(net); 269 struct aqc111_data *aqc111_data = dev->driver_priv; 270 enum usb_device_speed usb_speed = dev->udev->speed; 271 u32 speed = SPEED_UNKNOWN; 272 273 ethtool_link_ksettings_zero_link_mode(elk, supported); 274 ethtool_link_ksettings_add_link_mode(elk, supported, 275 100baseT_Full); 276 ethtool_link_ksettings_add_link_mode(elk, supported, 277 1000baseT_Full); 278 if (usb_speed == USB_SPEED_SUPER) { 279 ethtool_link_ksettings_add_link_mode(elk, supported, 280 2500baseT_Full); 281 ethtool_link_ksettings_add_link_mode(elk, supported, 282 5000baseT_Full); 283 } 284 ethtool_link_ksettings_add_link_mode(elk, supported, TP); 285 ethtool_link_ksettings_add_link_mode(elk, supported, Autoneg); 286 287 elk->base.port = PORT_TP; 288 elk->base.transceiver = XCVR_INTERNAL; 289 290 elk->base.mdio_support = 0x00; /*Not supported*/ 291 292 if (aqc111_data->autoneg) 293 linkmode_copy(elk->link_modes.advertising, 294 elk->link_modes.supported); 295 else 296 aqc111_speed_to_link_mode(aqc111_data->advertised_speed, elk); 297 298 elk->base.autoneg = aqc111_data->autoneg; 299 300 switch (aqc111_data->link_speed) { 301 case AQ_INT_SPEED_5G: 302 speed = SPEED_5000; 303 break; 304 case AQ_INT_SPEED_2_5G: 305 speed = SPEED_2500; 306 break; 307 case AQ_INT_SPEED_1G: 308 speed = SPEED_1000; 309 break; 310 case AQ_INT_SPEED_100M: 311 speed = SPEED_100; 312 break; 313 } 314 elk->base.duplex = DUPLEX_FULL; 315 elk->base.speed = speed; 316 317 return 0; 318 } 319 320 static void aqc111_set_phy_speed(struct usbnet *dev, u8 autoneg, u16 speed) 321 { 322 struct aqc111_data *aqc111_data = dev->driver_priv; 323 324 aqc111_data->phy_cfg &= ~AQ_ADV_MASK; 325 aqc111_data->phy_cfg |= AQ_PAUSE; 326 aqc111_data->phy_cfg |= AQ_ASYM_PAUSE; 327 aqc111_data->phy_cfg |= AQ_DOWNSHIFT; 328 aqc111_data->phy_cfg &= ~AQ_DSH_RETRIES_MASK; 329 aqc111_data->phy_cfg |= (3 << AQ_DSH_RETRIES_SHIFT) & 330 AQ_DSH_RETRIES_MASK; 331 332 if (autoneg == AUTONEG_ENABLE) { 333 switch (speed) { 334 case SPEED_5000: 335 aqc111_data->phy_cfg |= AQ_ADV_5G; 336 /* fall-through */ 337 case SPEED_2500: 338 aqc111_data->phy_cfg |= AQ_ADV_2G5; 339 /* fall-through */ 340 case SPEED_1000: 341 aqc111_data->phy_cfg |= AQ_ADV_1G; 342 /* fall-through */ 343 case SPEED_100: 344 aqc111_data->phy_cfg |= AQ_ADV_100M; 345 /* fall-through */ 346 } 347 } else { 348 switch (speed) { 349 case SPEED_5000: 350 aqc111_data->phy_cfg |= AQ_ADV_5G; 351 break; 352 case SPEED_2500: 353 aqc111_data->phy_cfg |= AQ_ADV_2G5; 354 break; 355 case SPEED_1000: 356 aqc111_data->phy_cfg |= AQ_ADV_1G; 357 break; 358 case SPEED_100: 359 aqc111_data->phy_cfg |= AQ_ADV_100M; 360 break; 361 } 362 } 363 364 aqc111_write32_cmd(dev, AQ_PHY_OPS, 0, 0, &aqc111_data->phy_cfg); 365 } 366 367 static int aqc111_set_link_ksettings(struct net_device *net, 368 const struct ethtool_link_ksettings *elk) 369 { 370 struct usbnet *dev = netdev_priv(net); 371 struct aqc111_data *aqc111_data = dev->driver_priv; 372 enum usb_device_speed usb_speed = dev->udev->speed; 373 u8 autoneg = elk->base.autoneg; 374 u32 speed = elk->base.speed; 375 376 if (autoneg == AUTONEG_ENABLE) { 377 if (aqc111_data->autoneg != AUTONEG_ENABLE) { 378 aqc111_data->autoneg = AUTONEG_ENABLE; 379 aqc111_data->advertised_speed = 380 (usb_speed == USB_SPEED_SUPER) ? 381 SPEED_5000 : SPEED_1000; 382 aqc111_set_phy_speed(dev, aqc111_data->autoneg, 383 aqc111_data->advertised_speed); 384 } 385 } else { 386 if (speed != SPEED_100 && 387 speed != SPEED_1000 && 388 speed != SPEED_2500 && 389 speed != SPEED_5000 && 390 speed != SPEED_UNKNOWN) 391 return -EINVAL; 392 393 if (elk->base.duplex != DUPLEX_FULL) 394 return -EINVAL; 395 396 if (usb_speed != USB_SPEED_SUPER && speed > SPEED_1000) 397 return -EINVAL; 398 399 aqc111_data->autoneg = AUTONEG_DISABLE; 400 if (speed != SPEED_UNKNOWN) 401 aqc111_data->advertised_speed = speed; 402 403 aqc111_set_phy_speed(dev, aqc111_data->autoneg, 404 aqc111_data->advertised_speed); 405 } 406 407 return 0; 408 } 409 410 static const struct ethtool_ops aqc111_ethtool_ops = { 411 .get_drvinfo = aqc111_get_drvinfo, 412 .get_wol = aqc111_get_wol, 413 .set_wol = aqc111_set_wol, 414 .get_msglevel = usbnet_get_msglevel, 415 .set_msglevel = usbnet_set_msglevel, 416 .get_link = ethtool_op_get_link, 417 .get_link_ksettings = aqc111_get_link_ksettings, 418 .set_link_ksettings = aqc111_set_link_ksettings 419 }; 420 421 static int aqc111_change_mtu(struct net_device *net, int new_mtu) 422 { 423 struct usbnet *dev = netdev_priv(net); 424 u16 reg16 = 0; 425 u8 buf[5]; 426 427 net->mtu = new_mtu; 428 dev->hard_mtu = net->mtu + net->hard_header_len; 429 430 aqc111_read16_cmd(dev, AQ_ACCESS_MAC, SFR_MEDIUM_STATUS_MODE, 431 2, ®16); 432 if (net->mtu > 1500) 433 reg16 |= SFR_MEDIUM_JUMBO_EN; 434 else 435 reg16 &= ~SFR_MEDIUM_JUMBO_EN; 436 437 aqc111_write16_cmd(dev, AQ_ACCESS_MAC, SFR_MEDIUM_STATUS_MODE, 438 2, ®16); 439 440 if (dev->net->mtu > 12500 && dev->net->mtu <= 16334) { 441 memcpy(buf, &AQC111_BULKIN_SIZE[2], 5); 442 /* RX bulk configuration */ 443 aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_RX_BULKIN_QCTRL, 444 5, 5, buf); 445 } 446 447 /* Set high low water level */ 448 if (dev->net->mtu <= 4500) 449 reg16 = 0x0810; 450 else if (dev->net->mtu <= 9500) 451 reg16 = 0x1020; 452 else if (dev->net->mtu <= 12500) 453 reg16 = 0x1420; 454 else if (dev->net->mtu <= 16334) 455 reg16 = 0x1A20; 456 else 457 return 0; 458 459 aqc111_write16_cmd(dev, AQ_ACCESS_MAC, SFR_PAUSE_WATERLVL_LOW, 460 2, ®16); 461 462 return 0; 463 } 464 465 static int aqc111_set_mac_addr(struct net_device *net, void *p) 466 { 467 struct usbnet *dev = netdev_priv(net); 468 int ret = 0; 469 470 ret = eth_mac_addr(net, p); 471 if (ret < 0) 472 return ret; 473 474 /* Set the MAC address */ 475 return aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_NODE_ID, ETH_ALEN, 476 ETH_ALEN, net->dev_addr); 477 } 478 479 static int aqc111_vlan_rx_kill_vid(struct net_device *net, 480 __be16 proto, u16 vid) 481 { 482 struct usbnet *dev = netdev_priv(net); 483 u8 vlan_ctrl = 0; 484 u16 reg16 = 0; 485 u8 reg8 = 0; 486 487 aqc111_read_cmd(dev, AQ_ACCESS_MAC, SFR_VLAN_ID_CONTROL, 1, 1, ®8); 488 vlan_ctrl = reg8; 489 490 /* Address */ 491 reg8 = (vid / 16); 492 aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_VLAN_ID_ADDRESS, 1, 1, ®8); 493 /* Data */ 494 reg8 = vlan_ctrl | SFR_VLAN_CONTROL_RD; 495 aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_VLAN_ID_CONTROL, 1, 1, ®8); 496 aqc111_read16_cmd(dev, AQ_ACCESS_MAC, SFR_VLAN_ID_DATA0, 2, ®16); 497 reg16 &= ~(1 << (vid % 16)); 498 aqc111_write16_cmd(dev, AQ_ACCESS_MAC, SFR_VLAN_ID_DATA0, 2, ®16); 499 reg8 = vlan_ctrl | SFR_VLAN_CONTROL_WE; 500 aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_VLAN_ID_CONTROL, 1, 1, ®8); 501 502 return 0; 503 } 504 505 static int aqc111_vlan_rx_add_vid(struct net_device *net, __be16 proto, u16 vid) 506 { 507 struct usbnet *dev = netdev_priv(net); 508 u8 vlan_ctrl = 0; 509 u16 reg16 = 0; 510 u8 reg8 = 0; 511 512 aqc111_read_cmd(dev, AQ_ACCESS_MAC, SFR_VLAN_ID_CONTROL, 1, 1, ®8); 513 vlan_ctrl = reg8; 514 515 /* Address */ 516 reg8 = (vid / 16); 517 aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_VLAN_ID_ADDRESS, 1, 1, ®8); 518 /* Data */ 519 reg8 = vlan_ctrl | SFR_VLAN_CONTROL_RD; 520 aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_VLAN_ID_CONTROL, 1, 1, ®8); 521 aqc111_read16_cmd(dev, AQ_ACCESS_MAC, SFR_VLAN_ID_DATA0, 2, ®16); 522 reg16 |= (1 << (vid % 16)); 523 aqc111_write16_cmd(dev, AQ_ACCESS_MAC, SFR_VLAN_ID_DATA0, 2, ®16); 524 reg8 = vlan_ctrl | SFR_VLAN_CONTROL_WE; 525 aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_VLAN_ID_CONTROL, 1, 1, ®8); 526 527 return 0; 528 } 529 530 static void aqc111_set_rx_mode(struct net_device *net) 531 { 532 struct usbnet *dev = netdev_priv(net); 533 struct aqc111_data *aqc111_data = dev->driver_priv; 534 int mc_count = 0; 535 536 mc_count = netdev_mc_count(net); 537 538 aqc111_data->rxctl &= ~(SFR_RX_CTL_PRO | SFR_RX_CTL_AMALL | 539 SFR_RX_CTL_AM); 540 541 if (net->flags & IFF_PROMISC) { 542 aqc111_data->rxctl |= SFR_RX_CTL_PRO; 543 } else if ((net->flags & IFF_ALLMULTI) || mc_count > AQ_MAX_MCAST) { 544 aqc111_data->rxctl |= SFR_RX_CTL_AMALL; 545 } else if (!netdev_mc_empty(net)) { 546 u8 m_filter[AQ_MCAST_FILTER_SIZE] = { 0 }; 547 struct netdev_hw_addr *ha = NULL; 548 u32 crc_bits = 0; 549 550 netdev_for_each_mc_addr(ha, net) { 551 crc_bits = ether_crc(ETH_ALEN, ha->addr) >> 26; 552 m_filter[crc_bits >> 3] |= BIT(crc_bits & 7); 553 } 554 555 aqc111_write_cmd_async(dev, AQ_ACCESS_MAC, 556 SFR_MULTI_FILTER_ARRY, 557 AQ_MCAST_FILTER_SIZE, 558 AQ_MCAST_FILTER_SIZE, m_filter); 559 560 aqc111_data->rxctl |= SFR_RX_CTL_AM; 561 } 562 563 aqc111_write16_cmd_async(dev, AQ_ACCESS_MAC, SFR_RX_CTL, 564 2, &aqc111_data->rxctl); 565 } 566 567 static int aqc111_set_features(struct net_device *net, 568 netdev_features_t features) 569 { 570 struct usbnet *dev = netdev_priv(net); 571 struct aqc111_data *aqc111_data = dev->driver_priv; 572 netdev_features_t changed = net->features ^ features; 573 u16 reg16 = 0; 574 u8 reg8 = 0; 575 576 if (changed & NETIF_F_IP_CSUM) { 577 aqc111_read_cmd(dev, AQ_ACCESS_MAC, SFR_TXCOE_CTL, 1, 1, ®8); 578 reg8 ^= SFR_TXCOE_TCP | SFR_TXCOE_UDP; 579 aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_TXCOE_CTL, 580 1, 1, ®8); 581 } 582 583 if (changed & NETIF_F_IPV6_CSUM) { 584 aqc111_read_cmd(dev, AQ_ACCESS_MAC, SFR_TXCOE_CTL, 1, 1, ®8); 585 reg8 ^= SFR_TXCOE_TCPV6 | SFR_TXCOE_UDPV6; 586 aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_TXCOE_CTL, 587 1, 1, ®8); 588 } 589 590 if (changed & NETIF_F_RXCSUM) { 591 aqc111_read_cmd(dev, AQ_ACCESS_MAC, SFR_RXCOE_CTL, 1, 1, ®8); 592 if (features & NETIF_F_RXCSUM) { 593 aqc111_data->rx_checksum = 1; 594 reg8 &= ~(SFR_RXCOE_IP | SFR_RXCOE_TCP | SFR_RXCOE_UDP | 595 SFR_RXCOE_TCPV6 | SFR_RXCOE_UDPV6); 596 } else { 597 aqc111_data->rx_checksum = 0; 598 reg8 |= SFR_RXCOE_IP | SFR_RXCOE_TCP | SFR_RXCOE_UDP | 599 SFR_RXCOE_TCPV6 | SFR_RXCOE_UDPV6; 600 } 601 602 aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_RXCOE_CTL, 603 1, 1, ®8); 604 } 605 if (changed & NETIF_F_HW_VLAN_CTAG_FILTER) { 606 if (features & NETIF_F_HW_VLAN_CTAG_FILTER) { 607 u16 i = 0; 608 609 for (i = 0; i < 256; i++) { 610 /* Address */ 611 reg8 = i; 612 aqc111_write_cmd(dev, AQ_ACCESS_MAC, 613 SFR_VLAN_ID_ADDRESS, 614 1, 1, ®8); 615 /* Data */ 616 aqc111_write16_cmd(dev, AQ_ACCESS_MAC, 617 SFR_VLAN_ID_DATA0, 618 2, ®16); 619 reg8 = SFR_VLAN_CONTROL_WE; 620 aqc111_write_cmd(dev, AQ_ACCESS_MAC, 621 SFR_VLAN_ID_CONTROL, 622 1, 1, ®8); 623 } 624 aqc111_read_cmd(dev, AQ_ACCESS_MAC, SFR_VLAN_ID_CONTROL, 625 1, 1, ®8); 626 reg8 |= SFR_VLAN_CONTROL_VFE; 627 aqc111_write_cmd(dev, AQ_ACCESS_MAC, 628 SFR_VLAN_ID_CONTROL, 1, 1, ®8); 629 } else { 630 aqc111_read_cmd(dev, AQ_ACCESS_MAC, SFR_VLAN_ID_CONTROL, 631 1, 1, ®8); 632 reg8 &= ~SFR_VLAN_CONTROL_VFE; 633 aqc111_write_cmd(dev, AQ_ACCESS_MAC, 634 SFR_VLAN_ID_CONTROL, 1, 1, ®8); 635 } 636 } 637 638 return 0; 639 } 640 641 static const struct net_device_ops aqc111_netdev_ops = { 642 .ndo_open = usbnet_open, 643 .ndo_stop = usbnet_stop, 644 .ndo_start_xmit = usbnet_start_xmit, 645 .ndo_tx_timeout = usbnet_tx_timeout, 646 .ndo_get_stats64 = usbnet_get_stats64, 647 .ndo_change_mtu = aqc111_change_mtu, 648 .ndo_set_mac_address = aqc111_set_mac_addr, 649 .ndo_validate_addr = eth_validate_addr, 650 .ndo_vlan_rx_add_vid = aqc111_vlan_rx_add_vid, 651 .ndo_vlan_rx_kill_vid = aqc111_vlan_rx_kill_vid, 652 .ndo_set_rx_mode = aqc111_set_rx_mode, 653 .ndo_set_features = aqc111_set_features, 654 }; 655 656 static int aqc111_read_perm_mac(struct usbnet *dev) 657 { 658 u8 buf[ETH_ALEN]; 659 int ret; 660 661 ret = aqc111_read_cmd(dev, AQ_FLASH_PARAMETERS, 0, 0, ETH_ALEN, buf); 662 if (ret < 0) 663 goto out; 664 665 ether_addr_copy(dev->net->perm_addr, buf); 666 667 return 0; 668 out: 669 return ret; 670 } 671 672 static void aqc111_read_fw_version(struct usbnet *dev, 673 struct aqc111_data *aqc111_data) 674 { 675 aqc111_read_cmd(dev, AQ_ACCESS_MAC, AQ_FW_VER_MAJOR, 676 1, 1, &aqc111_data->fw_ver.major); 677 aqc111_read_cmd(dev, AQ_ACCESS_MAC, AQ_FW_VER_MINOR, 678 1, 1, &aqc111_data->fw_ver.minor); 679 aqc111_read_cmd(dev, AQ_ACCESS_MAC, AQ_FW_VER_REV, 680 1, 1, &aqc111_data->fw_ver.rev); 681 682 if (aqc111_data->fw_ver.major & 0x80) 683 aqc111_data->fw_ver.major &= ~0x80; 684 } 685 686 static int aqc111_bind(struct usbnet *dev, struct usb_interface *intf) 687 { 688 struct usb_device *udev = interface_to_usbdev(intf); 689 enum usb_device_speed usb_speed = udev->speed; 690 struct aqc111_data *aqc111_data; 691 int ret; 692 693 /* Check if vendor configuration */ 694 if (udev->actconfig->desc.bConfigurationValue != 1) { 695 usb_driver_set_configuration(udev, 1); 696 return -ENODEV; 697 } 698 699 usb_reset_configuration(dev->udev); 700 701 ret = usbnet_get_endpoints(dev, intf); 702 if (ret < 0) { 703 netdev_dbg(dev->net, "usbnet_get_endpoints failed"); 704 return ret; 705 } 706 707 aqc111_data = kzalloc(sizeof(*aqc111_data), GFP_KERNEL); 708 if (!aqc111_data) 709 return -ENOMEM; 710 711 /* store aqc111_data pointer in device data field */ 712 dev->driver_priv = aqc111_data; 713 714 /* Init the MAC address */ 715 ret = aqc111_read_perm_mac(dev); 716 if (ret) 717 goto out; 718 719 ether_addr_copy(dev->net->dev_addr, dev->net->perm_addr); 720 721 /* Set Rx urb size */ 722 dev->rx_urb_size = URB_SIZE; 723 724 /* Set TX needed headroom & tailroom */ 725 dev->net->needed_headroom += sizeof(u64); 726 dev->net->needed_tailroom += sizeof(u64); 727 728 dev->net->max_mtu = 16334; 729 730 dev->net->netdev_ops = &aqc111_netdev_ops; 731 dev->net->ethtool_ops = &aqc111_ethtool_ops; 732 733 if (usb_device_no_sg_constraint(dev->udev)) 734 dev->can_dma_sg = 1; 735 736 dev->net->hw_features |= AQ_SUPPORT_HW_FEATURE; 737 dev->net->features |= AQ_SUPPORT_FEATURE; 738 dev->net->vlan_features |= AQ_SUPPORT_VLAN_FEATURE; 739 740 netif_set_gso_max_size(dev->net, 65535); 741 742 aqc111_read_fw_version(dev, aqc111_data); 743 aqc111_data->autoneg = AUTONEG_ENABLE; 744 aqc111_data->advertised_speed = (usb_speed == USB_SPEED_SUPER) ? 745 SPEED_5000 : SPEED_1000; 746 747 return 0; 748 749 out: 750 kfree(aqc111_data); 751 return ret; 752 } 753 754 static void aqc111_unbind(struct usbnet *dev, struct usb_interface *intf) 755 { 756 struct aqc111_data *aqc111_data = dev->driver_priv; 757 u16 reg16; 758 759 /* Force bz */ 760 reg16 = SFR_PHYPWR_RSTCTL_BZ; 761 aqc111_write16_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_PHYPWR_RSTCTL, 762 2, ®16); 763 reg16 = 0; 764 aqc111_write16_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_PHYPWR_RSTCTL, 765 2, ®16); 766 767 /* Power down ethernet PHY */ 768 aqc111_data->phy_cfg &= ~AQ_ADV_MASK; 769 aqc111_data->phy_cfg |= AQ_LOW_POWER; 770 aqc111_data->phy_cfg &= ~AQ_PHY_POWER_EN; 771 aqc111_write32_cmd_nopm(dev, AQ_PHY_OPS, 0, 0, 772 &aqc111_data->phy_cfg); 773 774 kfree(aqc111_data); 775 } 776 777 static void aqc111_status(struct usbnet *dev, struct urb *urb) 778 { 779 struct aqc111_data *aqc111_data = dev->driver_priv; 780 u64 *event_data = NULL; 781 int link = 0; 782 783 if (urb->actual_length < sizeof(*event_data)) 784 return; 785 786 event_data = urb->transfer_buffer; 787 le64_to_cpus(event_data); 788 789 if (*event_data & AQ_LS_MASK) 790 link = 1; 791 else 792 link = 0; 793 794 aqc111_data->link_speed = (*event_data & AQ_SPEED_MASK) >> 795 AQ_SPEED_SHIFT; 796 aqc111_data->link = link; 797 798 if (netif_carrier_ok(dev->net) != link) 799 usbnet_defer_kevent(dev, EVENT_LINK_RESET); 800 } 801 802 static void aqc111_configure_rx(struct usbnet *dev, 803 struct aqc111_data *aqc111_data) 804 { 805 enum usb_device_speed usb_speed = dev->udev->speed; 806 u16 link_speed = 0, usb_host = 0; 807 u8 buf[5] = { 0 }; 808 u8 queue_num = 0; 809 u16 reg16 = 0; 810 u8 reg8 = 0; 811 812 buf[0] = 0x00; 813 buf[1] = 0xF8; 814 buf[2] = 0x07; 815 switch (aqc111_data->link_speed) { 816 case AQ_INT_SPEED_5G: 817 link_speed = 5000; 818 reg8 = 0x05; 819 reg16 = 0x001F; 820 break; 821 case AQ_INT_SPEED_2_5G: 822 link_speed = 2500; 823 reg16 = 0x003F; 824 break; 825 case AQ_INT_SPEED_1G: 826 link_speed = 1000; 827 reg16 = 0x009F; 828 break; 829 case AQ_INT_SPEED_100M: 830 link_speed = 100; 831 queue_num = 1; 832 reg16 = 0x063F; 833 buf[1] = 0xFB; 834 buf[2] = 0x4; 835 break; 836 } 837 838 aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_INTER_PACKET_GAP_0, 839 1, 1, ®8); 840 841 aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_TX_PAUSE_RESEND_T, 3, 3, buf); 842 843 switch (usb_speed) { 844 case USB_SPEED_SUPER: 845 usb_host = 3; 846 break; 847 case USB_SPEED_HIGH: 848 usb_host = 2; 849 break; 850 case USB_SPEED_FULL: 851 case USB_SPEED_LOW: 852 usb_host = 1; 853 queue_num = 0; 854 break; 855 default: 856 usb_host = 0; 857 break; 858 } 859 860 if (dev->net->mtu > 12500 && dev->net->mtu <= 16334) 861 queue_num = 2; /* For Jumbo packet 16KB */ 862 863 memcpy(buf, &AQC111_BULKIN_SIZE[queue_num], 5); 864 /* RX bulk configuration */ 865 aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_RX_BULKIN_QCTRL, 5, 5, buf); 866 867 /* Set high low water level */ 868 if (dev->net->mtu <= 4500) 869 reg16 = 0x0810; 870 else if (dev->net->mtu <= 9500) 871 reg16 = 0x1020; 872 else if (dev->net->mtu <= 12500) 873 reg16 = 0x1420; 874 else if (dev->net->mtu <= 16334) 875 reg16 = 0x1A20; 876 877 aqc111_write16_cmd(dev, AQ_ACCESS_MAC, SFR_PAUSE_WATERLVL_LOW, 878 2, ®16); 879 netdev_info(dev->net, "Link Speed %d, USB %d", link_speed, usb_host); 880 } 881 882 static void aqc111_configure_csum_offload(struct usbnet *dev) 883 { 884 u8 reg8 = 0; 885 886 if (dev->net->features & NETIF_F_RXCSUM) { 887 reg8 |= SFR_RXCOE_IP | SFR_RXCOE_TCP | SFR_RXCOE_UDP | 888 SFR_RXCOE_TCPV6 | SFR_RXCOE_UDPV6; 889 } 890 aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_RXCOE_CTL, 1, 1, ®8); 891 892 reg8 = 0; 893 if (dev->net->features & NETIF_F_IP_CSUM) 894 reg8 |= SFR_TXCOE_IP | SFR_TXCOE_TCP | SFR_TXCOE_UDP; 895 896 if (dev->net->features & NETIF_F_IPV6_CSUM) 897 reg8 |= SFR_TXCOE_TCPV6 | SFR_TXCOE_UDPV6; 898 899 aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_TXCOE_CTL, 1, 1, ®8); 900 } 901 902 static int aqc111_link_reset(struct usbnet *dev) 903 { 904 struct aqc111_data *aqc111_data = dev->driver_priv; 905 u16 reg16 = 0; 906 u8 reg8 = 0; 907 908 if (aqc111_data->link == 1) { /* Link up */ 909 aqc111_configure_rx(dev, aqc111_data); 910 911 /* Vlan Tag Filter */ 912 reg8 = SFR_VLAN_CONTROL_VSO; 913 if (dev->net->features & NETIF_F_HW_VLAN_CTAG_FILTER) 914 reg8 |= SFR_VLAN_CONTROL_VFE; 915 916 aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_VLAN_ID_CONTROL, 917 1, 1, ®8); 918 919 reg8 = 0x0; 920 aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_BMRX_DMA_CONTROL, 921 1, 1, ®8); 922 923 aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_BMTX_DMA_CONTROL, 924 1, 1, ®8); 925 926 aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_ARC_CTRL, 1, 1, ®8); 927 928 reg16 = SFR_RX_CTL_IPE | SFR_RX_CTL_AB; 929 aqc111_data->rxctl = reg16; 930 aqc111_write16_cmd(dev, AQ_ACCESS_MAC, SFR_RX_CTL, 2, ®16); 931 932 reg8 = SFR_RX_PATH_READY; 933 aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_ETH_MAC_PATH, 934 1, 1, ®8); 935 936 reg8 = SFR_BULK_OUT_EFF_EN; 937 aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_BULK_OUT_CTRL, 938 1, 1, ®8); 939 940 reg16 = 0; 941 aqc111_write16_cmd(dev, AQ_ACCESS_MAC, SFR_MEDIUM_STATUS_MODE, 942 2, ®16); 943 944 reg16 = SFR_MEDIUM_XGMIIMODE | SFR_MEDIUM_FULL_DUPLEX; 945 aqc111_write16_cmd(dev, AQ_ACCESS_MAC, SFR_MEDIUM_STATUS_MODE, 946 2, ®16); 947 948 aqc111_configure_csum_offload(dev); 949 950 aqc111_set_rx_mode(dev->net); 951 952 aqc111_read16_cmd(dev, AQ_ACCESS_MAC, SFR_MEDIUM_STATUS_MODE, 953 2, ®16); 954 955 if (dev->net->mtu > 1500) 956 reg16 |= SFR_MEDIUM_JUMBO_EN; 957 958 reg16 |= SFR_MEDIUM_RECEIVE_EN | SFR_MEDIUM_RXFLOW_CTRLEN | 959 SFR_MEDIUM_TXFLOW_CTRLEN; 960 aqc111_write16_cmd(dev, AQ_ACCESS_MAC, SFR_MEDIUM_STATUS_MODE, 961 2, ®16); 962 963 aqc111_data->rxctl |= SFR_RX_CTL_START; 964 aqc111_write16_cmd(dev, AQ_ACCESS_MAC, SFR_RX_CTL, 965 2, &aqc111_data->rxctl); 966 967 netif_carrier_on(dev->net); 968 } else { 969 aqc111_read16_cmd(dev, AQ_ACCESS_MAC, SFR_MEDIUM_STATUS_MODE, 970 2, ®16); 971 reg16 &= ~SFR_MEDIUM_RECEIVE_EN; 972 aqc111_write16_cmd(dev, AQ_ACCESS_MAC, SFR_MEDIUM_STATUS_MODE, 973 2, ®16); 974 975 aqc111_data->rxctl &= ~SFR_RX_CTL_START; 976 aqc111_write16_cmd(dev, AQ_ACCESS_MAC, SFR_RX_CTL, 977 2, &aqc111_data->rxctl); 978 979 reg8 = SFR_BULK_OUT_FLUSH_EN | SFR_BULK_OUT_EFF_EN; 980 aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_BULK_OUT_CTRL, 981 1, 1, ®8); 982 reg8 = SFR_BULK_OUT_EFF_EN; 983 aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_BULK_OUT_CTRL, 984 1, 1, ®8); 985 986 netif_carrier_off(dev->net); 987 } 988 return 0; 989 } 990 991 static int aqc111_reset(struct usbnet *dev) 992 { 993 struct aqc111_data *aqc111_data = dev->driver_priv; 994 u8 reg8 = 0; 995 996 dev->rx_urb_size = URB_SIZE; 997 998 if (usb_device_no_sg_constraint(dev->udev)) 999 dev->can_dma_sg = 1; 1000 1001 dev->net->hw_features |= AQ_SUPPORT_HW_FEATURE; 1002 dev->net->features |= AQ_SUPPORT_FEATURE; 1003 dev->net->vlan_features |= AQ_SUPPORT_VLAN_FEATURE; 1004 1005 /* Power up ethernet PHY */ 1006 aqc111_data->phy_cfg = AQ_PHY_POWER_EN; 1007 aqc111_write32_cmd(dev, AQ_PHY_OPS, 0, 0, 1008 &aqc111_data->phy_cfg); 1009 1010 /* Set the MAC address */ 1011 aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_NODE_ID, ETH_ALEN, 1012 ETH_ALEN, dev->net->dev_addr); 1013 1014 reg8 = 0xFF; 1015 aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_BM_INT_MASK, 1, 1, ®8); 1016 1017 reg8 = 0x0; 1018 aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_SWP_CTRL, 1, 1, ®8); 1019 1020 aqc111_read_cmd(dev, AQ_ACCESS_MAC, SFR_MONITOR_MODE, 1, 1, ®8); 1021 reg8 &= ~(SFR_MONITOR_MODE_EPHYRW | SFR_MONITOR_MODE_RWLC | 1022 SFR_MONITOR_MODE_RWMP | SFR_MONITOR_MODE_RWWF | 1023 SFR_MONITOR_MODE_RW_FLAG); 1024 aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_MONITOR_MODE, 1, 1, ®8); 1025 1026 netif_carrier_off(dev->net); 1027 1028 /* Phy advertise */ 1029 aqc111_set_phy_speed(dev, aqc111_data->autoneg, 1030 aqc111_data->advertised_speed); 1031 1032 return 0; 1033 } 1034 1035 static int aqc111_stop(struct usbnet *dev) 1036 { 1037 struct aqc111_data *aqc111_data = dev->driver_priv; 1038 u16 reg16 = 0; 1039 1040 aqc111_read16_cmd(dev, AQ_ACCESS_MAC, SFR_MEDIUM_STATUS_MODE, 1041 2, ®16); 1042 reg16 &= ~SFR_MEDIUM_RECEIVE_EN; 1043 aqc111_write16_cmd(dev, AQ_ACCESS_MAC, SFR_MEDIUM_STATUS_MODE, 1044 2, ®16); 1045 reg16 = 0; 1046 aqc111_write16_cmd(dev, AQ_ACCESS_MAC, SFR_RX_CTL, 2, ®16); 1047 1048 /* Put PHY to low power*/ 1049 aqc111_data->phy_cfg |= AQ_LOW_POWER; 1050 aqc111_write32_cmd(dev, AQ_PHY_OPS, 0, 0, 1051 &aqc111_data->phy_cfg); 1052 1053 netif_carrier_off(dev->net); 1054 1055 return 0; 1056 } 1057 1058 static void aqc111_rx_checksum(struct sk_buff *skb, u64 pkt_desc) 1059 { 1060 u32 pkt_type = 0; 1061 1062 skb->ip_summed = CHECKSUM_NONE; 1063 /* checksum error bit is set */ 1064 if (pkt_desc & AQ_RX_PD_L4_ERR || pkt_desc & AQ_RX_PD_L3_ERR) 1065 return; 1066 1067 pkt_type = pkt_desc & AQ_RX_PD_L4_TYPE_MASK; 1068 /* It must be a TCP or UDP packet with a valid checksum */ 1069 if (pkt_type == AQ_RX_PD_L4_TCP || pkt_type == AQ_RX_PD_L4_UDP) 1070 skb->ip_summed = CHECKSUM_UNNECESSARY; 1071 } 1072 1073 static int aqc111_rx_fixup(struct usbnet *dev, struct sk_buff *skb) 1074 { 1075 struct aqc111_data *aqc111_data = dev->driver_priv; 1076 struct sk_buff *new_skb = NULL; 1077 u32 pkt_total_offset = 0; 1078 u64 *pkt_desc_ptr = NULL; 1079 u32 start_of_descs = 0; 1080 u32 desc_offset = 0; /*RX Header Offset*/ 1081 u16 pkt_count = 0; 1082 u64 desc_hdr = 0; 1083 u16 vlan_tag = 0; 1084 u32 skb_len = 0; 1085 1086 if (!skb) 1087 goto err; 1088 1089 if (skb->len == 0) 1090 goto err; 1091 1092 skb_len = skb->len; 1093 /* RX Descriptor Header */ 1094 skb_trim(skb, skb->len - sizeof(desc_hdr)); 1095 desc_hdr = le64_to_cpup((u64 *)skb_tail_pointer(skb)); 1096 1097 /* Check these packets */ 1098 desc_offset = (desc_hdr & AQ_RX_DH_DESC_OFFSET_MASK) >> 1099 AQ_RX_DH_DESC_OFFSET_SHIFT; 1100 pkt_count = desc_hdr & AQ_RX_DH_PKT_CNT_MASK; 1101 start_of_descs = skb_len - ((pkt_count + 1) * sizeof(desc_hdr)); 1102 1103 /* self check descs position */ 1104 if (start_of_descs != desc_offset) 1105 goto err; 1106 1107 /* self check desc_offset from header*/ 1108 if (desc_offset >= skb_len) 1109 goto err; 1110 1111 if (pkt_count == 0) 1112 goto err; 1113 1114 /* Get the first RX packet descriptor */ 1115 pkt_desc_ptr = (u64 *)(skb->data + desc_offset); 1116 1117 while (pkt_count--) { 1118 u64 pkt_desc = le64_to_cpup(pkt_desc_ptr); 1119 u32 pkt_len_with_padd = 0; 1120 u32 pkt_len = 0; 1121 1122 pkt_len = (u32)((pkt_desc & AQ_RX_PD_LEN_MASK) >> 1123 AQ_RX_PD_LEN_SHIFT); 1124 pkt_len_with_padd = ((pkt_len + 7) & 0x7FFF8); 1125 1126 pkt_total_offset += pkt_len_with_padd; 1127 if (pkt_total_offset > desc_offset || 1128 (pkt_count == 0 && pkt_total_offset != desc_offset)) { 1129 goto err; 1130 } 1131 1132 if (pkt_desc & AQ_RX_PD_DROP || 1133 !(pkt_desc & AQ_RX_PD_RX_OK) || 1134 pkt_len > (dev->hard_mtu + AQ_RX_HW_PAD)) { 1135 skb_pull(skb, pkt_len_with_padd); 1136 /* Next RX Packet Descriptor */ 1137 pkt_desc_ptr++; 1138 continue; 1139 } 1140 1141 /* Clone SKB */ 1142 new_skb = skb_clone(skb, GFP_ATOMIC); 1143 1144 if (!new_skb) 1145 goto err; 1146 1147 new_skb->len = pkt_len; 1148 skb_pull(new_skb, AQ_RX_HW_PAD); 1149 skb_set_tail_pointer(new_skb, new_skb->len); 1150 1151 new_skb->truesize = SKB_TRUESIZE(new_skb->len); 1152 if (aqc111_data->rx_checksum) 1153 aqc111_rx_checksum(new_skb, pkt_desc); 1154 1155 if (pkt_desc & AQ_RX_PD_VLAN) { 1156 vlan_tag = pkt_desc >> AQ_RX_PD_VLAN_SHIFT; 1157 __vlan_hwaccel_put_tag(new_skb, htons(ETH_P_8021Q), 1158 vlan_tag & VLAN_VID_MASK); 1159 } 1160 1161 usbnet_skb_return(dev, new_skb); 1162 if (pkt_count == 0) 1163 break; 1164 1165 skb_pull(skb, pkt_len_with_padd); 1166 1167 /* Next RX Packet Header */ 1168 pkt_desc_ptr++; 1169 1170 new_skb = NULL; 1171 } 1172 1173 return 1; 1174 1175 err: 1176 return 0; 1177 } 1178 1179 static struct sk_buff *aqc111_tx_fixup(struct usbnet *dev, struct sk_buff *skb, 1180 gfp_t flags) 1181 { 1182 int frame_size = dev->maxpacket; 1183 struct sk_buff *new_skb = NULL; 1184 u64 *tx_desc_ptr = NULL; 1185 int padding_size = 0; 1186 int headroom = 0; 1187 int tailroom = 0; 1188 u64 tx_desc = 0; 1189 u16 tci = 0; 1190 1191 /*Length of actual data*/ 1192 tx_desc |= skb->len & AQ_TX_DESC_LEN_MASK; 1193 1194 /* TSO MSS */ 1195 tx_desc |= ((u64)(skb_shinfo(skb)->gso_size & AQ_TX_DESC_MSS_MASK)) << 1196 AQ_TX_DESC_MSS_SHIFT; 1197 1198 headroom = (skb->len + sizeof(tx_desc)) % 8; 1199 if (headroom != 0) 1200 padding_size = 8 - headroom; 1201 1202 if (((skb->len + sizeof(tx_desc) + padding_size) % frame_size) == 0) { 1203 padding_size += 8; 1204 tx_desc |= AQ_TX_DESC_DROP_PADD; 1205 } 1206 1207 /* Vlan Tag */ 1208 if (vlan_get_tag(skb, &tci) >= 0) { 1209 tx_desc |= AQ_TX_DESC_VLAN; 1210 tx_desc |= ((u64)tci & AQ_TX_DESC_VLAN_MASK) << 1211 AQ_TX_DESC_VLAN_SHIFT; 1212 } 1213 1214 if (!dev->can_dma_sg && (dev->net->features & NETIF_F_SG) && 1215 skb_linearize(skb)) 1216 return NULL; 1217 1218 headroom = skb_headroom(skb); 1219 tailroom = skb_tailroom(skb); 1220 1221 if (!(headroom >= sizeof(tx_desc) && tailroom >= padding_size)) { 1222 new_skb = skb_copy_expand(skb, sizeof(tx_desc), 1223 padding_size, flags); 1224 dev_kfree_skb_any(skb); 1225 skb = new_skb; 1226 if (!skb) 1227 return NULL; 1228 } 1229 if (padding_size != 0) 1230 skb_put_zero(skb, padding_size); 1231 /* Copy TX header */ 1232 tx_desc_ptr = skb_push(skb, sizeof(tx_desc)); 1233 *tx_desc_ptr = cpu_to_le64(tx_desc); 1234 1235 usbnet_set_skb_tx_stats(skb, 1, 0); 1236 1237 return skb; 1238 } 1239 1240 static const struct driver_info aqc111_info = { 1241 .description = "Aquantia AQtion USB to 5GbE Controller", 1242 .bind = aqc111_bind, 1243 .unbind = aqc111_unbind, 1244 .status = aqc111_status, 1245 .link_reset = aqc111_link_reset, 1246 .reset = aqc111_reset, 1247 .stop = aqc111_stop, 1248 .flags = FLAG_ETHER | FLAG_FRAMING_AX | 1249 FLAG_AVOID_UNLINK_URBS | FLAG_MULTI_PACKET, 1250 .rx_fixup = aqc111_rx_fixup, 1251 .tx_fixup = aqc111_tx_fixup, 1252 }; 1253 1254 #define ASIX111_DESC \ 1255 "ASIX USB 3.1 Gen1 to 5G Multi-Gigabit Ethernet Adapter" 1256 1257 static const struct driver_info asix111_info = { 1258 .description = ASIX111_DESC, 1259 .bind = aqc111_bind, 1260 .unbind = aqc111_unbind, 1261 .status = aqc111_status, 1262 .link_reset = aqc111_link_reset, 1263 .reset = aqc111_reset, 1264 .stop = aqc111_stop, 1265 .flags = FLAG_ETHER | FLAG_FRAMING_AX | 1266 FLAG_AVOID_UNLINK_URBS | FLAG_MULTI_PACKET, 1267 .rx_fixup = aqc111_rx_fixup, 1268 .tx_fixup = aqc111_tx_fixup, 1269 }; 1270 1271 #undef ASIX111_DESC 1272 1273 #define ASIX112_DESC \ 1274 "ASIX USB 3.1 Gen1 to 2.5G Multi-Gigabit Ethernet Adapter" 1275 1276 static const struct driver_info asix112_info = { 1277 .description = ASIX112_DESC, 1278 .bind = aqc111_bind, 1279 .unbind = aqc111_unbind, 1280 .status = aqc111_status, 1281 .link_reset = aqc111_link_reset, 1282 .reset = aqc111_reset, 1283 .stop = aqc111_stop, 1284 .flags = FLAG_ETHER | FLAG_FRAMING_AX | 1285 FLAG_AVOID_UNLINK_URBS | FLAG_MULTI_PACKET, 1286 .rx_fixup = aqc111_rx_fixup, 1287 .tx_fixup = aqc111_tx_fixup, 1288 }; 1289 1290 #undef ASIX112_DESC 1291 1292 static const struct driver_info trendnet_info = { 1293 .description = "USB-C 3.1 to 5GBASE-T Ethernet Adapter", 1294 .bind = aqc111_bind, 1295 .unbind = aqc111_unbind, 1296 .status = aqc111_status, 1297 .link_reset = aqc111_link_reset, 1298 .reset = aqc111_reset, 1299 .stop = aqc111_stop, 1300 .flags = FLAG_ETHER | FLAG_FRAMING_AX | 1301 FLAG_AVOID_UNLINK_URBS | FLAG_MULTI_PACKET, 1302 .rx_fixup = aqc111_rx_fixup, 1303 .tx_fixup = aqc111_tx_fixup, 1304 }; 1305 1306 static const struct driver_info qnap_info = { 1307 .description = "QNAP QNA-UC5G1T USB to 5GbE Adapter", 1308 .bind = aqc111_bind, 1309 .unbind = aqc111_unbind, 1310 .status = aqc111_status, 1311 .link_reset = aqc111_link_reset, 1312 .reset = aqc111_reset, 1313 .stop = aqc111_stop, 1314 .flags = FLAG_ETHER | FLAG_FRAMING_AX | 1315 FLAG_AVOID_UNLINK_URBS | FLAG_MULTI_PACKET, 1316 .rx_fixup = aqc111_rx_fixup, 1317 .tx_fixup = aqc111_tx_fixup, 1318 }; 1319 1320 static int aqc111_suspend(struct usb_interface *intf, pm_message_t message) 1321 { 1322 struct usbnet *dev = usb_get_intfdata(intf); 1323 struct aqc111_data *aqc111_data = dev->driver_priv; 1324 u16 temp_rx_ctrl = 0x00; 1325 u16 reg16; 1326 u8 reg8; 1327 1328 usbnet_suspend(intf, message); 1329 1330 aqc111_read16_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_RX_CTL, 2, ®16); 1331 temp_rx_ctrl = reg16; 1332 /* Stop RX operations*/ 1333 reg16 &= ~SFR_RX_CTL_START; 1334 aqc111_write16_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_RX_CTL, 2, ®16); 1335 /* Force bz */ 1336 aqc111_read16_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_PHYPWR_RSTCTL, 1337 2, ®16); 1338 reg16 |= SFR_PHYPWR_RSTCTL_BZ; 1339 aqc111_write16_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_PHYPWR_RSTCTL, 1340 2, ®16); 1341 1342 reg8 = SFR_BULK_OUT_EFF_EN; 1343 aqc111_write_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_BULK_OUT_CTRL, 1344 1, 1, ®8); 1345 1346 temp_rx_ctrl &= ~(SFR_RX_CTL_START | SFR_RX_CTL_RF_WAK | 1347 SFR_RX_CTL_AP | SFR_RX_CTL_AM); 1348 aqc111_write16_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_RX_CTL, 1349 2, &temp_rx_ctrl); 1350 1351 reg8 = 0x00; 1352 aqc111_write_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_ETH_MAC_PATH, 1353 1, 1, ®8); 1354 1355 if (aqc111_data->wol_flags) { 1356 struct aqc111_wol_cfg wol_cfg; 1357 1358 memset(&wol_cfg, 0, sizeof(struct aqc111_wol_cfg)); 1359 1360 aqc111_data->phy_cfg |= AQ_WOL; 1361 ether_addr_copy(wol_cfg.hw_addr, dev->net->dev_addr); 1362 wol_cfg.flags = aqc111_data->wol_flags; 1363 1364 temp_rx_ctrl |= (SFR_RX_CTL_AB | SFR_RX_CTL_START); 1365 aqc111_write16_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_RX_CTL, 1366 2, &temp_rx_ctrl); 1367 reg8 = 0x00; 1368 aqc111_write_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_BM_INT_MASK, 1369 1, 1, ®8); 1370 reg8 = SFR_BMRX_DMA_EN; 1371 aqc111_write_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_BMRX_DMA_CONTROL, 1372 1, 1, ®8); 1373 reg8 = SFR_RX_PATH_READY; 1374 aqc111_write_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_ETH_MAC_PATH, 1375 1, 1, ®8); 1376 reg8 = 0x07; 1377 aqc111_write_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_RX_BULKIN_QCTRL, 1378 1, 1, ®8); 1379 reg8 = 0x00; 1380 aqc111_write_cmd_nopm(dev, AQ_ACCESS_MAC, 1381 SFR_RX_BULKIN_QTIMR_LOW, 1, 1, ®8); 1382 aqc111_write_cmd_nopm(dev, AQ_ACCESS_MAC, 1383 SFR_RX_BULKIN_QTIMR_HIGH, 1, 1, ®8); 1384 reg8 = 0xFF; 1385 aqc111_write_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_RX_BULKIN_QSIZE, 1386 1, 1, ®8); 1387 aqc111_write_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_RX_BULKIN_QIFG, 1388 1, 1, ®8); 1389 1390 aqc111_read16_cmd_nopm(dev, AQ_ACCESS_MAC, 1391 SFR_MEDIUM_STATUS_MODE, 2, ®16); 1392 reg16 |= SFR_MEDIUM_RECEIVE_EN; 1393 aqc111_write16_cmd_nopm(dev, AQ_ACCESS_MAC, 1394 SFR_MEDIUM_STATUS_MODE, 2, ®16); 1395 1396 aqc111_write_cmd(dev, AQ_WOL_CFG, 0, 0, 1397 WOL_CFG_SIZE, &wol_cfg); 1398 aqc111_write32_cmd(dev, AQ_PHY_OPS, 0, 0, 1399 &aqc111_data->phy_cfg); 1400 } else { 1401 aqc111_data->phy_cfg |= AQ_LOW_POWER; 1402 aqc111_write32_cmd(dev, AQ_PHY_OPS, 0, 0, 1403 &aqc111_data->phy_cfg); 1404 1405 /* Disable RX path */ 1406 aqc111_read16_cmd_nopm(dev, AQ_ACCESS_MAC, 1407 SFR_MEDIUM_STATUS_MODE, 2, ®16); 1408 reg16 &= ~SFR_MEDIUM_RECEIVE_EN; 1409 aqc111_write16_cmd_nopm(dev, AQ_ACCESS_MAC, 1410 SFR_MEDIUM_STATUS_MODE, 2, ®16); 1411 } 1412 1413 return 0; 1414 } 1415 1416 static int aqc111_resume(struct usb_interface *intf) 1417 { 1418 struct usbnet *dev = usb_get_intfdata(intf); 1419 struct aqc111_data *aqc111_data = dev->driver_priv; 1420 u16 reg16; 1421 u8 reg8; 1422 1423 netif_carrier_off(dev->net); 1424 1425 /* Power up ethernet PHY */ 1426 aqc111_data->phy_cfg |= AQ_PHY_POWER_EN; 1427 aqc111_data->phy_cfg &= ~AQ_LOW_POWER; 1428 aqc111_data->phy_cfg &= ~AQ_WOL; 1429 1430 reg8 = 0xFF; 1431 aqc111_write_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_BM_INT_MASK, 1432 1, 1, ®8); 1433 /* Configure RX control register => start operation */ 1434 reg16 = aqc111_data->rxctl; 1435 reg16 &= ~SFR_RX_CTL_START; 1436 aqc111_write16_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_RX_CTL, 2, ®16); 1437 1438 reg16 |= SFR_RX_CTL_START; 1439 aqc111_write16_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_RX_CTL, 2, ®16); 1440 1441 aqc111_set_phy_speed(dev, aqc111_data->autoneg, 1442 aqc111_data->advertised_speed); 1443 1444 aqc111_read16_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_MEDIUM_STATUS_MODE, 1445 2, ®16); 1446 reg16 |= SFR_MEDIUM_RECEIVE_EN; 1447 aqc111_write16_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_MEDIUM_STATUS_MODE, 1448 2, ®16); 1449 reg8 = SFR_RX_PATH_READY; 1450 aqc111_write_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_ETH_MAC_PATH, 1451 1, 1, ®8); 1452 reg8 = 0x0; 1453 aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_BMRX_DMA_CONTROL, 1, 1, ®8); 1454 1455 return usbnet_resume(intf); 1456 } 1457 1458 #define AQC111_USB_ETH_DEV(vid, pid, table) \ 1459 USB_DEVICE_INTERFACE_CLASS((vid), (pid), USB_CLASS_VENDOR_SPEC), \ 1460 .driver_info = (unsigned long)&(table) \ 1461 }, \ 1462 { \ 1463 USB_DEVICE_AND_INTERFACE_INFO((vid), (pid), \ 1464 USB_CLASS_COMM, \ 1465 USB_CDC_SUBCLASS_ETHERNET, \ 1466 USB_CDC_PROTO_NONE), \ 1467 .driver_info = (unsigned long)&(table), 1468 1469 static const struct usb_device_id products[] = { 1470 {AQC111_USB_ETH_DEV(0x2eca, 0xc101, aqc111_info)}, 1471 {AQC111_USB_ETH_DEV(0x0b95, 0x2790, asix111_info)}, 1472 {AQC111_USB_ETH_DEV(0x0b95, 0x2791, asix112_info)}, 1473 {AQC111_USB_ETH_DEV(0x20f4, 0xe05a, trendnet_info)}, 1474 {AQC111_USB_ETH_DEV(0x1c04, 0x0015, qnap_info)}, 1475 { },/* END */ 1476 }; 1477 MODULE_DEVICE_TABLE(usb, products); 1478 1479 static struct usb_driver aq_driver = { 1480 .name = "aqc111", 1481 .id_table = products, 1482 .probe = usbnet_probe, 1483 .suspend = aqc111_suspend, 1484 .resume = aqc111_resume, 1485 .disconnect = usbnet_disconnect, 1486 }; 1487 1488 module_usb_driver(aq_driver); 1489 1490 MODULE_DESCRIPTION("Aquantia AQtion USB to 5/2.5GbE Controllers"); 1491 MODULE_LICENSE("GPL"); 1492