1 /* 2 * Copyright (c) 2014 Realtek Semiconductor Corp. All rights reserved. 3 * 4 * This program is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU General Public License 6 * version 2 as published by the Free Software Foundation. 7 * 8 */ 9 10 #include <linux/signal.h> 11 #include <linux/slab.h> 12 #include <linux/module.h> 13 #include <linux/netdevice.h> 14 #include <linux/etherdevice.h> 15 #include <linux/mii.h> 16 #include <linux/ethtool.h> 17 #include <linux/usb.h> 18 #include <linux/crc32.h> 19 #include <linux/if_vlan.h> 20 #include <linux/uaccess.h> 21 #include <linux/list.h> 22 #include <linux/ip.h> 23 #include <linux/ipv6.h> 24 #include <net/ip6_checksum.h> 25 #include <uapi/linux/mdio.h> 26 #include <linux/mdio.h> 27 #include <linux/usb/cdc.h> 28 #include <linux/suspend.h> 29 #include <linux/acpi.h> 30 31 /* Information for net-next */ 32 #define NETNEXT_VERSION "09" 33 34 /* Information for net */ 35 #define NET_VERSION "9" 36 37 #define DRIVER_VERSION "v1." NETNEXT_VERSION "." NET_VERSION 38 #define DRIVER_AUTHOR "Realtek linux nic maintainers <nic_swsd@realtek.com>" 39 #define DRIVER_DESC "Realtek RTL8152/RTL8153 Based USB Ethernet Adapters" 40 #define MODULENAME "r8152" 41 42 #define R8152_PHY_ID 32 43 44 #define PLA_IDR 0xc000 45 #define PLA_RCR 0xc010 46 #define PLA_RMS 0xc016 47 #define PLA_RXFIFO_CTRL0 0xc0a0 48 #define PLA_RXFIFO_CTRL1 0xc0a4 49 #define PLA_RXFIFO_CTRL2 0xc0a8 50 #define PLA_DMY_REG0 0xc0b0 51 #define PLA_FMC 0xc0b4 52 #define PLA_CFG_WOL 0xc0b6 53 #define PLA_TEREDO_CFG 0xc0bc 54 #define PLA_TEREDO_WAKE_BASE 0xc0c4 55 #define PLA_MAR 0xcd00 56 #define PLA_BACKUP 0xd000 57 #define PAL_BDC_CR 0xd1a0 58 #define PLA_TEREDO_TIMER 0xd2cc 59 #define PLA_REALWOW_TIMER 0xd2e8 60 #define PLA_EFUSE_DATA 0xdd00 61 #define PLA_EFUSE_CMD 0xdd02 62 #define PLA_LEDSEL 0xdd90 63 #define PLA_LED_FEATURE 0xdd92 64 #define PLA_PHYAR 0xde00 65 #define PLA_BOOT_CTRL 0xe004 66 #define PLA_GPHY_INTR_IMR 0xe022 67 #define PLA_EEE_CR 0xe040 68 #define PLA_EEEP_CR 0xe080 69 #define PLA_MAC_PWR_CTRL 0xe0c0 70 #define PLA_MAC_PWR_CTRL2 0xe0ca 71 #define PLA_MAC_PWR_CTRL3 0xe0cc 72 #define PLA_MAC_PWR_CTRL4 0xe0ce 73 #define PLA_WDT6_CTRL 0xe428 74 #define PLA_TCR0 0xe610 75 #define PLA_TCR1 0xe612 76 #define PLA_MTPS 0xe615 77 #define PLA_TXFIFO_CTRL 0xe618 78 #define PLA_RSTTALLY 0xe800 79 #define PLA_CR 0xe813 80 #define PLA_CRWECR 0xe81c 81 #define PLA_CONFIG12 0xe81e /* CONFIG1, CONFIG2 */ 82 #define PLA_CONFIG34 0xe820 /* CONFIG3, CONFIG4 */ 83 #define PLA_CONFIG5 0xe822 84 #define PLA_PHY_PWR 0xe84c 85 #define PLA_OOB_CTRL 0xe84f 86 #define PLA_CPCR 0xe854 87 #define PLA_MISC_0 0xe858 88 #define PLA_MISC_1 0xe85a 89 #define PLA_OCP_GPHY_BASE 0xe86c 90 #define PLA_TALLYCNT 0xe890 91 #define PLA_SFF_STS_7 0xe8de 92 #define PLA_PHYSTATUS 0xe908 93 #define PLA_BP_BA 0xfc26 94 #define PLA_BP_0 0xfc28 95 #define PLA_BP_1 0xfc2a 96 #define PLA_BP_2 0xfc2c 97 #define PLA_BP_3 0xfc2e 98 #define PLA_BP_4 0xfc30 99 #define PLA_BP_5 0xfc32 100 #define PLA_BP_6 0xfc34 101 #define PLA_BP_7 0xfc36 102 #define PLA_BP_EN 0xfc38 103 104 #define USB_USB2PHY 0xb41e 105 #define USB_SSPHYLINK2 0xb428 106 #define USB_U2P3_CTRL 0xb460 107 #define USB_CSR_DUMMY1 0xb464 108 #define USB_CSR_DUMMY2 0xb466 109 #define USB_DEV_STAT 0xb808 110 #define USB_CONNECT_TIMER 0xcbf8 111 #define USB_MSC_TIMER 0xcbfc 112 #define USB_BURST_SIZE 0xcfc0 113 #define USB_LPM_CONFIG 0xcfd8 114 #define USB_USB_CTRL 0xd406 115 #define USB_PHY_CTRL 0xd408 116 #define USB_TX_AGG 0xd40a 117 #define USB_RX_BUF_TH 0xd40c 118 #define USB_USB_TIMER 0xd428 119 #define USB_RX_EARLY_TIMEOUT 0xd42c 120 #define USB_RX_EARLY_SIZE 0xd42e 121 #define USB_PM_CTRL_STATUS 0xd432 /* RTL8153A */ 122 #define USB_RX_EXTRA_AGGR_TMR 0xd432 /* RTL8153B */ 123 #define USB_TX_DMA 0xd434 124 #define USB_UPT_RXDMA_OWN 0xd437 125 #define USB_TOLERANCE 0xd490 126 #define USB_LPM_CTRL 0xd41a 127 #define USB_BMU_RESET 0xd4b0 128 #define USB_U1U2_TIMER 0xd4da 129 #define USB_UPS_CTRL 0xd800 130 #define USB_POWER_CUT 0xd80a 131 #define USB_MISC_0 0xd81a 132 #define USB_AFE_CTRL2 0xd824 133 #define USB_UPS_CFG 0xd842 134 #define USB_UPS_FLAGS 0xd848 135 #define USB_WDT11_CTRL 0xe43c 136 #define USB_BP_BA 0xfc26 137 #define USB_BP_0 0xfc28 138 #define USB_BP_1 0xfc2a 139 #define USB_BP_2 0xfc2c 140 #define USB_BP_3 0xfc2e 141 #define USB_BP_4 0xfc30 142 #define USB_BP_5 0xfc32 143 #define USB_BP_6 0xfc34 144 #define USB_BP_7 0xfc36 145 #define USB_BP_EN 0xfc38 146 #define USB_BP_8 0xfc38 147 #define USB_BP_9 0xfc3a 148 #define USB_BP_10 0xfc3c 149 #define USB_BP_11 0xfc3e 150 #define USB_BP_12 0xfc40 151 #define USB_BP_13 0xfc42 152 #define USB_BP_14 0xfc44 153 #define USB_BP_15 0xfc46 154 #define USB_BP2_EN 0xfc48 155 156 /* OCP Registers */ 157 #define OCP_ALDPS_CONFIG 0x2010 158 #define OCP_EEE_CONFIG1 0x2080 159 #define OCP_EEE_CONFIG2 0x2092 160 #define OCP_EEE_CONFIG3 0x2094 161 #define OCP_BASE_MII 0xa400 162 #define OCP_EEE_AR 0xa41a 163 #define OCP_EEE_DATA 0xa41c 164 #define OCP_PHY_STATUS 0xa420 165 #define OCP_NCTL_CFG 0xa42c 166 #define OCP_POWER_CFG 0xa430 167 #define OCP_EEE_CFG 0xa432 168 #define OCP_SRAM_ADDR 0xa436 169 #define OCP_SRAM_DATA 0xa438 170 #define OCP_DOWN_SPEED 0xa442 171 #define OCP_EEE_ABLE 0xa5c4 172 #define OCP_EEE_ADV 0xa5d0 173 #define OCP_EEE_LPABLE 0xa5d2 174 #define OCP_PHY_STATE 0xa708 /* nway state for 8153 */ 175 #define OCP_PHY_PATCH_STAT 0xb800 176 #define OCP_PHY_PATCH_CMD 0xb820 177 #define OCP_ADC_IOFFSET 0xbcfc 178 #define OCP_ADC_CFG 0xbc06 179 #define OCP_SYSCLK_CFG 0xc416 180 181 /* SRAM Register */ 182 #define SRAM_GREEN_CFG 0x8011 183 #define SRAM_LPF_CFG 0x8012 184 #define SRAM_10M_AMP1 0x8080 185 #define SRAM_10M_AMP2 0x8082 186 #define SRAM_IMPEDANCE 0x8084 187 188 /* PLA_RCR */ 189 #define RCR_AAP 0x00000001 190 #define RCR_APM 0x00000002 191 #define RCR_AM 0x00000004 192 #define RCR_AB 0x00000008 193 #define RCR_ACPT_ALL (RCR_AAP | RCR_APM | RCR_AM | RCR_AB) 194 195 /* PLA_RXFIFO_CTRL0 */ 196 #define RXFIFO_THR1_NORMAL 0x00080002 197 #define RXFIFO_THR1_OOB 0x01800003 198 199 /* PLA_RXFIFO_CTRL1 */ 200 #define RXFIFO_THR2_FULL 0x00000060 201 #define RXFIFO_THR2_HIGH 0x00000038 202 #define RXFIFO_THR2_OOB 0x0000004a 203 #define RXFIFO_THR2_NORMAL 0x00a0 204 205 /* PLA_RXFIFO_CTRL2 */ 206 #define RXFIFO_THR3_FULL 0x00000078 207 #define RXFIFO_THR3_HIGH 0x00000048 208 #define RXFIFO_THR3_OOB 0x0000005a 209 #define RXFIFO_THR3_NORMAL 0x0110 210 211 /* PLA_TXFIFO_CTRL */ 212 #define TXFIFO_THR_NORMAL 0x00400008 213 #define TXFIFO_THR_NORMAL2 0x01000008 214 215 /* PLA_DMY_REG0 */ 216 #define ECM_ALDPS 0x0002 217 218 /* PLA_FMC */ 219 #define FMC_FCR_MCU_EN 0x0001 220 221 /* PLA_EEEP_CR */ 222 #define EEEP_CR_EEEP_TX 0x0002 223 224 /* PLA_WDT6_CTRL */ 225 #define WDT6_SET_MODE 0x0010 226 227 /* PLA_TCR0 */ 228 #define TCR0_TX_EMPTY 0x0800 229 #define TCR0_AUTO_FIFO 0x0080 230 231 /* PLA_TCR1 */ 232 #define VERSION_MASK 0x7cf0 233 234 /* PLA_MTPS */ 235 #define MTPS_JUMBO (12 * 1024 / 64) 236 #define MTPS_DEFAULT (6 * 1024 / 64) 237 238 /* PLA_RSTTALLY */ 239 #define TALLY_RESET 0x0001 240 241 /* PLA_CR */ 242 #define CR_RST 0x10 243 #define CR_RE 0x08 244 #define CR_TE 0x04 245 246 /* PLA_CRWECR */ 247 #define CRWECR_NORAML 0x00 248 #define CRWECR_CONFIG 0xc0 249 250 /* PLA_OOB_CTRL */ 251 #define NOW_IS_OOB 0x80 252 #define TXFIFO_EMPTY 0x20 253 #define RXFIFO_EMPTY 0x10 254 #define LINK_LIST_READY 0x02 255 #define DIS_MCU_CLROOB 0x01 256 #define FIFO_EMPTY (TXFIFO_EMPTY | RXFIFO_EMPTY) 257 258 /* PLA_MISC_1 */ 259 #define RXDY_GATED_EN 0x0008 260 261 /* PLA_SFF_STS_7 */ 262 #define RE_INIT_LL 0x8000 263 #define MCU_BORW_EN 0x4000 264 265 /* PLA_CPCR */ 266 #define CPCR_RX_VLAN 0x0040 267 268 /* PLA_CFG_WOL */ 269 #define MAGIC_EN 0x0001 270 271 /* PLA_TEREDO_CFG */ 272 #define TEREDO_SEL 0x8000 273 #define TEREDO_WAKE_MASK 0x7f00 274 #define TEREDO_RS_EVENT_MASK 0x00fe 275 #define OOB_TEREDO_EN 0x0001 276 277 /* PAL_BDC_CR */ 278 #define ALDPS_PROXY_MODE 0x0001 279 280 /* PLA_EFUSE_CMD */ 281 #define EFUSE_READ_CMD BIT(15) 282 #define EFUSE_DATA_BIT16 BIT(7) 283 284 /* PLA_CONFIG34 */ 285 #define LINK_ON_WAKE_EN 0x0010 286 #define LINK_OFF_WAKE_EN 0x0008 287 288 /* PLA_CONFIG5 */ 289 #define BWF_EN 0x0040 290 #define MWF_EN 0x0020 291 #define UWF_EN 0x0010 292 #define LAN_WAKE_EN 0x0002 293 294 /* PLA_LED_FEATURE */ 295 #define LED_MODE_MASK 0x0700 296 297 /* PLA_PHY_PWR */ 298 #define TX_10M_IDLE_EN 0x0080 299 #define PFM_PWM_SWITCH 0x0040 300 301 /* PLA_MAC_PWR_CTRL */ 302 #define D3_CLK_GATED_EN 0x00004000 303 #define MCU_CLK_RATIO 0x07010f07 304 #define MCU_CLK_RATIO_MASK 0x0f0f0f0f 305 #define ALDPS_SPDWN_RATIO 0x0f87 306 307 /* PLA_MAC_PWR_CTRL2 */ 308 #define EEE_SPDWN_RATIO 0x8007 309 #define MAC_CLK_SPDWN_EN BIT(15) 310 311 /* PLA_MAC_PWR_CTRL3 */ 312 #define PKT_AVAIL_SPDWN_EN 0x0100 313 #define SUSPEND_SPDWN_EN 0x0004 314 #define U1U2_SPDWN_EN 0x0002 315 #define L1_SPDWN_EN 0x0001 316 317 /* PLA_MAC_PWR_CTRL4 */ 318 #define PWRSAVE_SPDWN_EN 0x1000 319 #define RXDV_SPDWN_EN 0x0800 320 #define TX10MIDLE_EN 0x0100 321 #define TP100_SPDWN_EN 0x0020 322 #define TP500_SPDWN_EN 0x0010 323 #define TP1000_SPDWN_EN 0x0008 324 #define EEE_SPDWN_EN 0x0001 325 326 /* PLA_GPHY_INTR_IMR */ 327 #define GPHY_STS_MSK 0x0001 328 #define SPEED_DOWN_MSK 0x0002 329 #define SPDWN_RXDV_MSK 0x0004 330 #define SPDWN_LINKCHG_MSK 0x0008 331 332 /* PLA_PHYAR */ 333 #define PHYAR_FLAG 0x80000000 334 335 /* PLA_EEE_CR */ 336 #define EEE_RX_EN 0x0001 337 #define EEE_TX_EN 0x0002 338 339 /* PLA_BOOT_CTRL */ 340 #define AUTOLOAD_DONE 0x0002 341 342 /* USB_USB2PHY */ 343 #define USB2PHY_SUSPEND 0x0001 344 #define USB2PHY_L1 0x0002 345 346 /* USB_SSPHYLINK2 */ 347 #define pwd_dn_scale_mask 0x3ffe 348 #define pwd_dn_scale(x) ((x) << 1) 349 350 /* USB_CSR_DUMMY1 */ 351 #define DYNAMIC_BURST 0x0001 352 353 /* USB_CSR_DUMMY2 */ 354 #define EP4_FULL_FC 0x0001 355 356 /* USB_DEV_STAT */ 357 #define STAT_SPEED_MASK 0x0006 358 #define STAT_SPEED_HIGH 0x0000 359 #define STAT_SPEED_FULL 0x0002 360 361 /* USB_LPM_CONFIG */ 362 #define LPM_U1U2_EN BIT(0) 363 364 /* USB_TX_AGG */ 365 #define TX_AGG_MAX_THRESHOLD 0x03 366 367 /* USB_RX_BUF_TH */ 368 #define RX_THR_SUPPER 0x0c350180 369 #define RX_THR_HIGH 0x7a120180 370 #define RX_THR_SLOW 0xffff0180 371 #define RX_THR_B 0x00010001 372 373 /* USB_TX_DMA */ 374 #define TEST_MODE_DISABLE 0x00000001 375 #define TX_SIZE_ADJUST1 0x00000100 376 377 /* USB_BMU_RESET */ 378 #define BMU_RESET_EP_IN 0x01 379 #define BMU_RESET_EP_OUT 0x02 380 381 /* USB_UPT_RXDMA_OWN */ 382 #define OWN_UPDATE BIT(0) 383 #define OWN_CLEAR BIT(1) 384 385 /* USB_UPS_CTRL */ 386 #define POWER_CUT 0x0100 387 388 /* USB_PM_CTRL_STATUS */ 389 #define RESUME_INDICATE 0x0001 390 391 /* USB_USB_CTRL */ 392 #define RX_AGG_DISABLE 0x0010 393 #define RX_ZERO_EN 0x0080 394 395 /* USB_U2P3_CTRL */ 396 #define U2P3_ENABLE 0x0001 397 398 /* USB_POWER_CUT */ 399 #define PWR_EN 0x0001 400 #define PHASE2_EN 0x0008 401 #define UPS_EN BIT(4) 402 #define USP_PREWAKE BIT(5) 403 404 /* USB_MISC_0 */ 405 #define PCUT_STATUS 0x0001 406 407 /* USB_RX_EARLY_TIMEOUT */ 408 #define COALESCE_SUPER 85000U 409 #define COALESCE_HIGH 250000U 410 #define COALESCE_SLOW 524280U 411 412 /* USB_WDT11_CTRL */ 413 #define TIMER11_EN 0x0001 414 415 /* USB_LPM_CTRL */ 416 /* bit 4 ~ 5: fifo empty boundary */ 417 #define FIFO_EMPTY_1FB 0x30 /* 0x1fb * 64 = 32448 bytes */ 418 /* bit 2 ~ 3: LMP timer */ 419 #define LPM_TIMER_MASK 0x0c 420 #define LPM_TIMER_500MS 0x04 /* 500 ms */ 421 #define LPM_TIMER_500US 0x0c /* 500 us */ 422 #define ROK_EXIT_LPM 0x02 423 424 /* USB_AFE_CTRL2 */ 425 #define SEN_VAL_MASK 0xf800 426 #define SEN_VAL_NORMAL 0xa000 427 #define SEL_RXIDLE 0x0100 428 429 /* USB_UPS_CFG */ 430 #define SAW_CNT_1MS_MASK 0x0fff 431 432 /* USB_UPS_FLAGS */ 433 #define UPS_FLAGS_R_TUNE BIT(0) 434 #define UPS_FLAGS_EN_10M_CKDIV BIT(1) 435 #define UPS_FLAGS_250M_CKDIV BIT(2) 436 #define UPS_FLAGS_EN_ALDPS BIT(3) 437 #define UPS_FLAGS_CTAP_SHORT_DIS BIT(4) 438 #define UPS_FLAGS_SPEED_MASK (0xf << 16) 439 #define ups_flags_speed(x) ((x) << 16) 440 #define UPS_FLAGS_EN_EEE BIT(20) 441 #define UPS_FLAGS_EN_500M_EEE BIT(21) 442 #define UPS_FLAGS_EN_EEE_CKDIV BIT(22) 443 #define UPS_FLAGS_EEE_PLLOFF_GIGA BIT(24) 444 #define UPS_FLAGS_EEE_CMOD_LV_EN BIT(25) 445 #define UPS_FLAGS_EN_GREEN BIT(26) 446 #define UPS_FLAGS_EN_FLOW_CTR BIT(27) 447 448 enum spd_duplex { 449 NWAY_10M_HALF = 1, 450 NWAY_10M_FULL, 451 NWAY_100M_HALF, 452 NWAY_100M_FULL, 453 NWAY_1000M_FULL, 454 FORCE_10M_HALF, 455 FORCE_10M_FULL, 456 FORCE_100M_HALF, 457 FORCE_100M_FULL, 458 }; 459 460 /* OCP_ALDPS_CONFIG */ 461 #define ENPWRSAVE 0x8000 462 #define ENPDNPS 0x0200 463 #define LINKENA 0x0100 464 #define DIS_SDSAVE 0x0010 465 466 /* OCP_PHY_STATUS */ 467 #define PHY_STAT_MASK 0x0007 468 #define PHY_STAT_EXT_INIT 2 469 #define PHY_STAT_LAN_ON 3 470 #define PHY_STAT_PWRDN 5 471 472 /* OCP_NCTL_CFG */ 473 #define PGA_RETURN_EN BIT(1) 474 475 /* OCP_POWER_CFG */ 476 #define EEE_CLKDIV_EN 0x8000 477 #define EN_ALDPS 0x0004 478 #define EN_10M_PLLOFF 0x0001 479 480 /* OCP_EEE_CONFIG1 */ 481 #define RG_TXLPI_MSK_HFDUP 0x8000 482 #define RG_MATCLR_EN 0x4000 483 #define EEE_10_CAP 0x2000 484 #define EEE_NWAY_EN 0x1000 485 #define TX_QUIET_EN 0x0200 486 #define RX_QUIET_EN 0x0100 487 #define sd_rise_time_mask 0x0070 488 #define sd_rise_time(x) (min(x, 7) << 4) /* bit 4 ~ 6 */ 489 #define RG_RXLPI_MSK_HFDUP 0x0008 490 #define SDFALLTIME 0x0007 /* bit 0 ~ 2 */ 491 492 /* OCP_EEE_CONFIG2 */ 493 #define RG_LPIHYS_NUM 0x7000 /* bit 12 ~ 15 */ 494 #define RG_DACQUIET_EN 0x0400 495 #define RG_LDVQUIET_EN 0x0200 496 #define RG_CKRSEL 0x0020 497 #define RG_EEEPRG_EN 0x0010 498 499 /* OCP_EEE_CONFIG3 */ 500 #define fast_snr_mask 0xff80 501 #define fast_snr(x) (min(x, 0x1ff) << 7) /* bit 7 ~ 15 */ 502 #define RG_LFS_SEL 0x0060 /* bit 6 ~ 5 */ 503 #define MSK_PH 0x0006 /* bit 0 ~ 3 */ 504 505 /* OCP_EEE_AR */ 506 /* bit[15:14] function */ 507 #define FUN_ADDR 0x0000 508 #define FUN_DATA 0x4000 509 /* bit[4:0] device addr */ 510 511 /* OCP_EEE_CFG */ 512 #define CTAP_SHORT_EN 0x0040 513 #define EEE10_EN 0x0010 514 515 /* OCP_DOWN_SPEED */ 516 #define EN_EEE_CMODE BIT(14) 517 #define EN_EEE_1000 BIT(13) 518 #define EN_EEE_100 BIT(12) 519 #define EN_10M_CLKDIV BIT(11) 520 #define EN_10M_BGOFF 0x0080 521 522 /* OCP_PHY_STATE */ 523 #define TXDIS_STATE 0x01 524 #define ABD_STATE 0x02 525 526 /* OCP_PHY_PATCH_STAT */ 527 #define PATCH_READY BIT(6) 528 529 /* OCP_PHY_PATCH_CMD */ 530 #define PATCH_REQUEST BIT(4) 531 532 /* OCP_ADC_CFG */ 533 #define CKADSEL_L 0x0100 534 #define ADC_EN 0x0080 535 #define EN_EMI_L 0x0040 536 537 /* OCP_SYSCLK_CFG */ 538 #define clk_div_expo(x) (min(x, 5) << 8) 539 540 /* SRAM_GREEN_CFG */ 541 #define GREEN_ETH_EN BIT(15) 542 #define R_TUNE_EN BIT(11) 543 544 /* SRAM_LPF_CFG */ 545 #define LPF_AUTO_TUNE 0x8000 546 547 /* SRAM_10M_AMP1 */ 548 #define GDAC_IB_UPALL 0x0008 549 550 /* SRAM_10M_AMP2 */ 551 #define AMP_DN 0x0200 552 553 /* SRAM_IMPEDANCE */ 554 #define RX_DRIVING_MASK 0x6000 555 556 /* MAC PASSTHRU */ 557 #define AD_MASK 0xfee0 558 #define EFUSE 0xcfdb 559 #define PASS_THRU_MASK 0x1 560 561 enum rtl_register_content { 562 _1000bps = 0x10, 563 _100bps = 0x08, 564 _10bps = 0x04, 565 LINK_STATUS = 0x02, 566 FULL_DUP = 0x01, 567 }; 568 569 #define RTL8152_MAX_TX 4 570 #define RTL8152_MAX_RX 10 571 #define INTBUFSIZE 2 572 #define TX_ALIGN 4 573 #define RX_ALIGN 8 574 575 #define INTR_LINK 0x0004 576 577 #define RTL8152_REQT_READ 0xc0 578 #define RTL8152_REQT_WRITE 0x40 579 #define RTL8152_REQ_GET_REGS 0x05 580 #define RTL8152_REQ_SET_REGS 0x05 581 582 #define BYTE_EN_DWORD 0xff 583 #define BYTE_EN_WORD 0x33 584 #define BYTE_EN_BYTE 0x11 585 #define BYTE_EN_SIX_BYTES 0x3f 586 #define BYTE_EN_START_MASK 0x0f 587 #define BYTE_EN_END_MASK 0xf0 588 589 #define RTL8153_MAX_PACKET 9216 /* 9K */ 590 #define RTL8153_MAX_MTU (RTL8153_MAX_PACKET - VLAN_ETH_HLEN - \ 591 ETH_FCS_LEN) 592 #define RTL8152_RMS (VLAN_ETH_FRAME_LEN + ETH_FCS_LEN) 593 #define RTL8153_RMS RTL8153_MAX_PACKET 594 #define RTL8152_TX_TIMEOUT (5 * HZ) 595 #define RTL8152_NAPI_WEIGHT 64 596 #define rx_reserved_size(x) ((x) + VLAN_ETH_HLEN + ETH_FCS_LEN + \ 597 sizeof(struct rx_desc) + RX_ALIGN) 598 599 /* rtl8152 flags */ 600 enum rtl8152_flags { 601 RTL8152_UNPLUG = 0, 602 RTL8152_SET_RX_MODE, 603 WORK_ENABLE, 604 RTL8152_LINK_CHG, 605 SELECTIVE_SUSPEND, 606 PHY_RESET, 607 SCHEDULE_NAPI, 608 GREEN_ETHERNET, 609 DELL_TB_RX_AGG_BUG, 610 }; 611 612 /* Define these values to match your device */ 613 #define VENDOR_ID_REALTEK 0x0bda 614 #define VENDOR_ID_MICROSOFT 0x045e 615 #define VENDOR_ID_SAMSUNG 0x04e8 616 #define VENDOR_ID_LENOVO 0x17ef 617 #define VENDOR_ID_LINKSYS 0x13b1 618 #define VENDOR_ID_NVIDIA 0x0955 619 #define VENDOR_ID_TPLINK 0x2357 620 621 #define MCU_TYPE_PLA 0x0100 622 #define MCU_TYPE_USB 0x0000 623 624 struct tally_counter { 625 __le64 tx_packets; 626 __le64 rx_packets; 627 __le64 tx_errors; 628 __le32 rx_errors; 629 __le16 rx_missed; 630 __le16 align_errors; 631 __le32 tx_one_collision; 632 __le32 tx_multi_collision; 633 __le64 rx_unicast; 634 __le64 rx_broadcast; 635 __le32 rx_multicast; 636 __le16 tx_aborted; 637 __le16 tx_underrun; 638 }; 639 640 struct rx_desc { 641 __le32 opts1; 642 #define RX_LEN_MASK 0x7fff 643 644 __le32 opts2; 645 #define RD_UDP_CS BIT(23) 646 #define RD_TCP_CS BIT(22) 647 #define RD_IPV6_CS BIT(20) 648 #define RD_IPV4_CS BIT(19) 649 650 __le32 opts3; 651 #define IPF BIT(23) /* IP checksum fail */ 652 #define UDPF BIT(22) /* UDP checksum fail */ 653 #define TCPF BIT(21) /* TCP checksum fail */ 654 #define RX_VLAN_TAG BIT(16) 655 656 __le32 opts4; 657 __le32 opts5; 658 __le32 opts6; 659 }; 660 661 struct tx_desc { 662 __le32 opts1; 663 #define TX_FS BIT(31) /* First segment of a packet */ 664 #define TX_LS BIT(30) /* Final segment of a packet */ 665 #define GTSENDV4 BIT(28) 666 #define GTSENDV6 BIT(27) 667 #define GTTCPHO_SHIFT 18 668 #define GTTCPHO_MAX 0x7fU 669 #define TX_LEN_MAX 0x3ffffU 670 671 __le32 opts2; 672 #define UDP_CS BIT(31) /* Calculate UDP/IP checksum */ 673 #define TCP_CS BIT(30) /* Calculate TCP/IP checksum */ 674 #define IPV4_CS BIT(29) /* Calculate IPv4 checksum */ 675 #define IPV6_CS BIT(28) /* Calculate IPv6 checksum */ 676 #define MSS_SHIFT 17 677 #define MSS_MAX 0x7ffU 678 #define TCPHO_SHIFT 17 679 #define TCPHO_MAX 0x7ffU 680 #define TX_VLAN_TAG BIT(16) 681 }; 682 683 struct r8152; 684 685 struct rx_agg { 686 struct list_head list; 687 struct urb *urb; 688 struct r8152 *context; 689 void *buffer; 690 void *head; 691 }; 692 693 struct tx_agg { 694 struct list_head list; 695 struct urb *urb; 696 struct r8152 *context; 697 void *buffer; 698 void *head; 699 u32 skb_num; 700 u32 skb_len; 701 }; 702 703 struct r8152 { 704 unsigned long flags; 705 struct usb_device *udev; 706 struct napi_struct napi; 707 struct usb_interface *intf; 708 struct net_device *netdev; 709 struct urb *intr_urb; 710 struct tx_agg tx_info[RTL8152_MAX_TX]; 711 struct rx_agg rx_info[RTL8152_MAX_RX]; 712 struct list_head rx_done, tx_free; 713 struct sk_buff_head tx_queue, rx_queue; 714 spinlock_t rx_lock, tx_lock; 715 struct delayed_work schedule, hw_phy_work; 716 struct mii_if_info mii; 717 struct mutex control; /* use for hw setting */ 718 #ifdef CONFIG_PM_SLEEP 719 struct notifier_block pm_notifier; 720 #endif 721 722 struct rtl_ops { 723 void (*init)(struct r8152 *); 724 int (*enable)(struct r8152 *); 725 void (*disable)(struct r8152 *); 726 void (*up)(struct r8152 *); 727 void (*down)(struct r8152 *); 728 void (*unload)(struct r8152 *); 729 int (*eee_get)(struct r8152 *, struct ethtool_eee *); 730 int (*eee_set)(struct r8152 *, struct ethtool_eee *); 731 bool (*in_nway)(struct r8152 *); 732 void (*hw_phy_cfg)(struct r8152 *); 733 void (*autosuspend_en)(struct r8152 *tp, bool enable); 734 } rtl_ops; 735 736 int intr_interval; 737 u32 saved_wolopts; 738 u32 msg_enable; 739 u32 tx_qlen; 740 u32 coalesce; 741 u16 ocp_base; 742 u16 speed; 743 u8 *intr_buff; 744 u8 version; 745 u8 duplex; 746 u8 autoneg; 747 }; 748 749 enum rtl_version { 750 RTL_VER_UNKNOWN = 0, 751 RTL_VER_01, 752 RTL_VER_02, 753 RTL_VER_03, 754 RTL_VER_04, 755 RTL_VER_05, 756 RTL_VER_06, 757 RTL_VER_07, 758 RTL_VER_08, 759 RTL_VER_09, 760 RTL_VER_MAX 761 }; 762 763 enum tx_csum_stat { 764 TX_CSUM_SUCCESS = 0, 765 TX_CSUM_TSO, 766 TX_CSUM_NONE 767 }; 768 769 /* Maximum number of multicast addresses to filter (vs. Rx-all-multicast). 770 * The RTL chips use a 64 element hash table based on the Ethernet CRC. 771 */ 772 static const int multicast_filter_limit = 32; 773 static unsigned int agg_buf_sz = 16384; 774 775 #define RTL_LIMITED_TSO_SIZE (agg_buf_sz - sizeof(struct tx_desc) - \ 776 VLAN_ETH_HLEN - ETH_FCS_LEN) 777 778 static 779 int get_registers(struct r8152 *tp, u16 value, u16 index, u16 size, void *data) 780 { 781 int ret; 782 void *tmp; 783 784 tmp = kmalloc(size, GFP_KERNEL); 785 if (!tmp) 786 return -ENOMEM; 787 788 ret = usb_control_msg(tp->udev, usb_rcvctrlpipe(tp->udev, 0), 789 RTL8152_REQ_GET_REGS, RTL8152_REQT_READ, 790 value, index, tmp, size, 500); 791 792 memcpy(data, tmp, size); 793 kfree(tmp); 794 795 return ret; 796 } 797 798 static 799 int set_registers(struct r8152 *tp, u16 value, u16 index, u16 size, void *data) 800 { 801 int ret; 802 void *tmp; 803 804 tmp = kmemdup(data, size, GFP_KERNEL); 805 if (!tmp) 806 return -ENOMEM; 807 808 ret = usb_control_msg(tp->udev, usb_sndctrlpipe(tp->udev, 0), 809 RTL8152_REQ_SET_REGS, RTL8152_REQT_WRITE, 810 value, index, tmp, size, 500); 811 812 kfree(tmp); 813 814 return ret; 815 } 816 817 static int generic_ocp_read(struct r8152 *tp, u16 index, u16 size, 818 void *data, u16 type) 819 { 820 u16 limit = 64; 821 int ret = 0; 822 823 if (test_bit(RTL8152_UNPLUG, &tp->flags)) 824 return -ENODEV; 825 826 /* both size and indix must be 4 bytes align */ 827 if ((size & 3) || !size || (index & 3) || !data) 828 return -EPERM; 829 830 if ((u32)index + (u32)size > 0xffff) 831 return -EPERM; 832 833 while (size) { 834 if (size > limit) { 835 ret = get_registers(tp, index, type, limit, data); 836 if (ret < 0) 837 break; 838 839 index += limit; 840 data += limit; 841 size -= limit; 842 } else { 843 ret = get_registers(tp, index, type, size, data); 844 if (ret < 0) 845 break; 846 847 index += size; 848 data += size; 849 size = 0; 850 break; 851 } 852 } 853 854 if (ret == -ENODEV) 855 set_bit(RTL8152_UNPLUG, &tp->flags); 856 857 return ret; 858 } 859 860 static int generic_ocp_write(struct r8152 *tp, u16 index, u16 byteen, 861 u16 size, void *data, u16 type) 862 { 863 int ret; 864 u16 byteen_start, byteen_end, byen; 865 u16 limit = 512; 866 867 if (test_bit(RTL8152_UNPLUG, &tp->flags)) 868 return -ENODEV; 869 870 /* both size and indix must be 4 bytes align */ 871 if ((size & 3) || !size || (index & 3) || !data) 872 return -EPERM; 873 874 if ((u32)index + (u32)size > 0xffff) 875 return -EPERM; 876 877 byteen_start = byteen & BYTE_EN_START_MASK; 878 byteen_end = byteen & BYTE_EN_END_MASK; 879 880 byen = byteen_start | (byteen_start << 4); 881 ret = set_registers(tp, index, type | byen, 4, data); 882 if (ret < 0) 883 goto error1; 884 885 index += 4; 886 data += 4; 887 size -= 4; 888 889 if (size) { 890 size -= 4; 891 892 while (size) { 893 if (size > limit) { 894 ret = set_registers(tp, index, 895 type | BYTE_EN_DWORD, 896 limit, data); 897 if (ret < 0) 898 goto error1; 899 900 index += limit; 901 data += limit; 902 size -= limit; 903 } else { 904 ret = set_registers(tp, index, 905 type | BYTE_EN_DWORD, 906 size, data); 907 if (ret < 0) 908 goto error1; 909 910 index += size; 911 data += size; 912 size = 0; 913 break; 914 } 915 } 916 917 byen = byteen_end | (byteen_end >> 4); 918 ret = set_registers(tp, index, type | byen, 4, data); 919 if (ret < 0) 920 goto error1; 921 } 922 923 error1: 924 if (ret == -ENODEV) 925 set_bit(RTL8152_UNPLUG, &tp->flags); 926 927 return ret; 928 } 929 930 static inline 931 int pla_ocp_read(struct r8152 *tp, u16 index, u16 size, void *data) 932 { 933 return generic_ocp_read(tp, index, size, data, MCU_TYPE_PLA); 934 } 935 936 static inline 937 int pla_ocp_write(struct r8152 *tp, u16 index, u16 byteen, u16 size, void *data) 938 { 939 return generic_ocp_write(tp, index, byteen, size, data, MCU_TYPE_PLA); 940 } 941 942 static inline 943 int usb_ocp_write(struct r8152 *tp, u16 index, u16 byteen, u16 size, void *data) 944 { 945 return generic_ocp_write(tp, index, byteen, size, data, MCU_TYPE_USB); 946 } 947 948 static u32 ocp_read_dword(struct r8152 *tp, u16 type, u16 index) 949 { 950 __le32 data; 951 952 generic_ocp_read(tp, index, sizeof(data), &data, type); 953 954 return __le32_to_cpu(data); 955 } 956 957 static void ocp_write_dword(struct r8152 *tp, u16 type, u16 index, u32 data) 958 { 959 __le32 tmp = __cpu_to_le32(data); 960 961 generic_ocp_write(tp, index, BYTE_EN_DWORD, sizeof(tmp), &tmp, type); 962 } 963 964 static u16 ocp_read_word(struct r8152 *tp, u16 type, u16 index) 965 { 966 u32 data; 967 __le32 tmp; 968 u16 byen = BYTE_EN_WORD; 969 u8 shift = index & 2; 970 971 index &= ~3; 972 byen <<= shift; 973 974 generic_ocp_read(tp, index, sizeof(tmp), &tmp, type | byen); 975 976 data = __le32_to_cpu(tmp); 977 data >>= (shift * 8); 978 data &= 0xffff; 979 980 return (u16)data; 981 } 982 983 static void ocp_write_word(struct r8152 *tp, u16 type, u16 index, u32 data) 984 { 985 u32 mask = 0xffff; 986 __le32 tmp; 987 u16 byen = BYTE_EN_WORD; 988 u8 shift = index & 2; 989 990 data &= mask; 991 992 if (index & 2) { 993 byen <<= shift; 994 mask <<= (shift * 8); 995 data <<= (shift * 8); 996 index &= ~3; 997 } 998 999 tmp = __cpu_to_le32(data); 1000 1001 generic_ocp_write(tp, index, byen, sizeof(tmp), &tmp, type); 1002 } 1003 1004 static u8 ocp_read_byte(struct r8152 *tp, u16 type, u16 index) 1005 { 1006 u32 data; 1007 __le32 tmp; 1008 u8 shift = index & 3; 1009 1010 index &= ~3; 1011 1012 generic_ocp_read(tp, index, sizeof(tmp), &tmp, type); 1013 1014 data = __le32_to_cpu(tmp); 1015 data >>= (shift * 8); 1016 data &= 0xff; 1017 1018 return (u8)data; 1019 } 1020 1021 static void ocp_write_byte(struct r8152 *tp, u16 type, u16 index, u32 data) 1022 { 1023 u32 mask = 0xff; 1024 __le32 tmp; 1025 u16 byen = BYTE_EN_BYTE; 1026 u8 shift = index & 3; 1027 1028 data &= mask; 1029 1030 if (index & 3) { 1031 byen <<= shift; 1032 mask <<= (shift * 8); 1033 data <<= (shift * 8); 1034 index &= ~3; 1035 } 1036 1037 tmp = __cpu_to_le32(data); 1038 1039 generic_ocp_write(tp, index, byen, sizeof(tmp), &tmp, type); 1040 } 1041 1042 static u16 ocp_reg_read(struct r8152 *tp, u16 addr) 1043 { 1044 u16 ocp_base, ocp_index; 1045 1046 ocp_base = addr & 0xf000; 1047 if (ocp_base != tp->ocp_base) { 1048 ocp_write_word(tp, MCU_TYPE_PLA, PLA_OCP_GPHY_BASE, ocp_base); 1049 tp->ocp_base = ocp_base; 1050 } 1051 1052 ocp_index = (addr & 0x0fff) | 0xb000; 1053 return ocp_read_word(tp, MCU_TYPE_PLA, ocp_index); 1054 } 1055 1056 static void ocp_reg_write(struct r8152 *tp, u16 addr, u16 data) 1057 { 1058 u16 ocp_base, ocp_index; 1059 1060 ocp_base = addr & 0xf000; 1061 if (ocp_base != tp->ocp_base) { 1062 ocp_write_word(tp, MCU_TYPE_PLA, PLA_OCP_GPHY_BASE, ocp_base); 1063 tp->ocp_base = ocp_base; 1064 } 1065 1066 ocp_index = (addr & 0x0fff) | 0xb000; 1067 ocp_write_word(tp, MCU_TYPE_PLA, ocp_index, data); 1068 } 1069 1070 static inline void r8152_mdio_write(struct r8152 *tp, u32 reg_addr, u32 value) 1071 { 1072 ocp_reg_write(tp, OCP_BASE_MII + reg_addr * 2, value); 1073 } 1074 1075 static inline int r8152_mdio_read(struct r8152 *tp, u32 reg_addr) 1076 { 1077 return ocp_reg_read(tp, OCP_BASE_MII + reg_addr * 2); 1078 } 1079 1080 static void sram_write(struct r8152 *tp, u16 addr, u16 data) 1081 { 1082 ocp_reg_write(tp, OCP_SRAM_ADDR, addr); 1083 ocp_reg_write(tp, OCP_SRAM_DATA, data); 1084 } 1085 1086 static u16 sram_read(struct r8152 *tp, u16 addr) 1087 { 1088 ocp_reg_write(tp, OCP_SRAM_ADDR, addr); 1089 return ocp_reg_read(tp, OCP_SRAM_DATA); 1090 } 1091 1092 static int read_mii_word(struct net_device *netdev, int phy_id, int reg) 1093 { 1094 struct r8152 *tp = netdev_priv(netdev); 1095 int ret; 1096 1097 if (test_bit(RTL8152_UNPLUG, &tp->flags)) 1098 return -ENODEV; 1099 1100 if (phy_id != R8152_PHY_ID) 1101 return -EINVAL; 1102 1103 ret = r8152_mdio_read(tp, reg); 1104 1105 return ret; 1106 } 1107 1108 static 1109 void write_mii_word(struct net_device *netdev, int phy_id, int reg, int val) 1110 { 1111 struct r8152 *tp = netdev_priv(netdev); 1112 1113 if (test_bit(RTL8152_UNPLUG, &tp->flags)) 1114 return; 1115 1116 if (phy_id != R8152_PHY_ID) 1117 return; 1118 1119 r8152_mdio_write(tp, reg, val); 1120 } 1121 1122 static int 1123 r8152_submit_rx(struct r8152 *tp, struct rx_agg *agg, gfp_t mem_flags); 1124 1125 static int rtl8152_set_mac_address(struct net_device *netdev, void *p) 1126 { 1127 struct r8152 *tp = netdev_priv(netdev); 1128 struct sockaddr *addr = p; 1129 int ret = -EADDRNOTAVAIL; 1130 1131 if (!is_valid_ether_addr(addr->sa_data)) 1132 goto out1; 1133 1134 ret = usb_autopm_get_interface(tp->intf); 1135 if (ret < 0) 1136 goto out1; 1137 1138 mutex_lock(&tp->control); 1139 1140 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len); 1141 1142 ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CRWECR, CRWECR_CONFIG); 1143 pla_ocp_write(tp, PLA_IDR, BYTE_EN_SIX_BYTES, 8, addr->sa_data); 1144 ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CRWECR, CRWECR_NORAML); 1145 1146 mutex_unlock(&tp->control); 1147 1148 usb_autopm_put_interface(tp->intf); 1149 out1: 1150 return ret; 1151 } 1152 1153 /* Devices containing RTL8153-AD can support a persistent 1154 * host system provided MAC address. 1155 * Examples of this are Dell TB15 and Dell WD15 docks 1156 */ 1157 static int vendor_mac_passthru_addr_read(struct r8152 *tp, struct sockaddr *sa) 1158 { 1159 acpi_status status; 1160 struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; 1161 union acpi_object *obj; 1162 int ret = -EINVAL; 1163 u32 ocp_data; 1164 unsigned char buf[6]; 1165 1166 /* test for -AD variant of RTL8153 */ 1167 ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_MISC_0); 1168 if ((ocp_data & AD_MASK) != 0x1000) 1169 return -ENODEV; 1170 1171 /* test for MAC address pass-through bit */ 1172 ocp_data = ocp_read_byte(tp, MCU_TYPE_USB, EFUSE); 1173 if ((ocp_data & PASS_THRU_MASK) != 1) 1174 return -ENODEV; 1175 1176 /* returns _AUXMAC_#AABBCCDDEEFF# */ 1177 status = acpi_evaluate_object(NULL, "\\_SB.AMAC", NULL, &buffer); 1178 obj = (union acpi_object *)buffer.pointer; 1179 if (!ACPI_SUCCESS(status)) 1180 return -ENODEV; 1181 if (obj->type != ACPI_TYPE_BUFFER || obj->string.length != 0x17) { 1182 netif_warn(tp, probe, tp->netdev, 1183 "Invalid buffer for pass-thru MAC addr: (%d, %d)\n", 1184 obj->type, obj->string.length); 1185 goto amacout; 1186 } 1187 if (strncmp(obj->string.pointer, "_AUXMAC_#", 9) != 0 || 1188 strncmp(obj->string.pointer + 0x15, "#", 1) != 0) { 1189 netif_warn(tp, probe, tp->netdev, 1190 "Invalid header when reading pass-thru MAC addr\n"); 1191 goto amacout; 1192 } 1193 ret = hex2bin(buf, obj->string.pointer + 9, 6); 1194 if (!(ret == 0 && is_valid_ether_addr(buf))) { 1195 netif_warn(tp, probe, tp->netdev, 1196 "Invalid MAC for pass-thru MAC addr: %d, %pM\n", 1197 ret, buf); 1198 ret = -EINVAL; 1199 goto amacout; 1200 } 1201 memcpy(sa->sa_data, buf, 6); 1202 ether_addr_copy(tp->netdev->dev_addr, sa->sa_data); 1203 netif_info(tp, probe, tp->netdev, 1204 "Using pass-thru MAC addr %pM\n", sa->sa_data); 1205 1206 amacout: 1207 kfree(obj); 1208 return ret; 1209 } 1210 1211 static int set_ethernet_addr(struct r8152 *tp) 1212 { 1213 struct net_device *dev = tp->netdev; 1214 struct sockaddr sa; 1215 int ret; 1216 1217 if (tp->version == RTL_VER_01) { 1218 ret = pla_ocp_read(tp, PLA_IDR, 8, sa.sa_data); 1219 } else { 1220 /* if this is not an RTL8153-AD, no eFuse mac pass thru set, 1221 * or system doesn't provide valid _SB.AMAC this will be 1222 * be expected to non-zero 1223 */ 1224 ret = vendor_mac_passthru_addr_read(tp, &sa); 1225 if (ret < 0) 1226 ret = pla_ocp_read(tp, PLA_BACKUP, 8, sa.sa_data); 1227 } 1228 1229 if (ret < 0) { 1230 netif_err(tp, probe, dev, "Get ether addr fail\n"); 1231 } else if (!is_valid_ether_addr(sa.sa_data)) { 1232 netif_err(tp, probe, dev, "Invalid ether addr %pM\n", 1233 sa.sa_data); 1234 eth_hw_addr_random(dev); 1235 ether_addr_copy(sa.sa_data, dev->dev_addr); 1236 ret = rtl8152_set_mac_address(dev, &sa); 1237 netif_info(tp, probe, dev, "Random ether addr %pM\n", 1238 sa.sa_data); 1239 } else { 1240 if (tp->version == RTL_VER_01) 1241 ether_addr_copy(dev->dev_addr, sa.sa_data); 1242 else 1243 ret = rtl8152_set_mac_address(dev, &sa); 1244 } 1245 1246 return ret; 1247 } 1248 1249 static void read_bulk_callback(struct urb *urb) 1250 { 1251 struct net_device *netdev; 1252 int status = urb->status; 1253 struct rx_agg *agg; 1254 struct r8152 *tp; 1255 1256 agg = urb->context; 1257 if (!agg) 1258 return; 1259 1260 tp = agg->context; 1261 if (!tp) 1262 return; 1263 1264 if (test_bit(RTL8152_UNPLUG, &tp->flags)) 1265 return; 1266 1267 if (!test_bit(WORK_ENABLE, &tp->flags)) 1268 return; 1269 1270 netdev = tp->netdev; 1271 1272 /* When link down, the driver would cancel all bulks. */ 1273 /* This avoid the re-submitting bulk */ 1274 if (!netif_carrier_ok(netdev)) 1275 return; 1276 1277 usb_mark_last_busy(tp->udev); 1278 1279 switch (status) { 1280 case 0: 1281 if (urb->actual_length < ETH_ZLEN) 1282 break; 1283 1284 spin_lock(&tp->rx_lock); 1285 list_add_tail(&agg->list, &tp->rx_done); 1286 spin_unlock(&tp->rx_lock); 1287 napi_schedule(&tp->napi); 1288 return; 1289 case -ESHUTDOWN: 1290 set_bit(RTL8152_UNPLUG, &tp->flags); 1291 netif_device_detach(tp->netdev); 1292 return; 1293 case -ENOENT: 1294 return; /* the urb is in unlink state */ 1295 case -ETIME: 1296 if (net_ratelimit()) 1297 netdev_warn(netdev, "maybe reset is needed?\n"); 1298 break; 1299 default: 1300 if (net_ratelimit()) 1301 netdev_warn(netdev, "Rx status %d\n", status); 1302 break; 1303 } 1304 1305 r8152_submit_rx(tp, agg, GFP_ATOMIC); 1306 } 1307 1308 static void write_bulk_callback(struct urb *urb) 1309 { 1310 struct net_device_stats *stats; 1311 struct net_device *netdev; 1312 struct tx_agg *agg; 1313 struct r8152 *tp; 1314 int status = urb->status; 1315 1316 agg = urb->context; 1317 if (!agg) 1318 return; 1319 1320 tp = agg->context; 1321 if (!tp) 1322 return; 1323 1324 netdev = tp->netdev; 1325 stats = &netdev->stats; 1326 if (status) { 1327 if (net_ratelimit()) 1328 netdev_warn(netdev, "Tx status %d\n", status); 1329 stats->tx_errors += agg->skb_num; 1330 } else { 1331 stats->tx_packets += agg->skb_num; 1332 stats->tx_bytes += agg->skb_len; 1333 } 1334 1335 spin_lock(&tp->tx_lock); 1336 list_add_tail(&agg->list, &tp->tx_free); 1337 spin_unlock(&tp->tx_lock); 1338 1339 usb_autopm_put_interface_async(tp->intf); 1340 1341 if (!netif_carrier_ok(netdev)) 1342 return; 1343 1344 if (!test_bit(WORK_ENABLE, &tp->flags)) 1345 return; 1346 1347 if (test_bit(RTL8152_UNPLUG, &tp->flags)) 1348 return; 1349 1350 if (!skb_queue_empty(&tp->tx_queue)) 1351 napi_schedule(&tp->napi); 1352 } 1353 1354 static void intr_callback(struct urb *urb) 1355 { 1356 struct r8152 *tp; 1357 __le16 *d; 1358 int status = urb->status; 1359 int res; 1360 1361 tp = urb->context; 1362 if (!tp) 1363 return; 1364 1365 if (!test_bit(WORK_ENABLE, &tp->flags)) 1366 return; 1367 1368 if (test_bit(RTL8152_UNPLUG, &tp->flags)) 1369 return; 1370 1371 switch (status) { 1372 case 0: /* success */ 1373 break; 1374 case -ECONNRESET: /* unlink */ 1375 case -ESHUTDOWN: 1376 netif_device_detach(tp->netdev); 1377 case -ENOENT: 1378 case -EPROTO: 1379 netif_info(tp, intr, tp->netdev, 1380 "Stop submitting intr, status %d\n", status); 1381 return; 1382 case -EOVERFLOW: 1383 netif_info(tp, intr, tp->netdev, "intr status -EOVERFLOW\n"); 1384 goto resubmit; 1385 /* -EPIPE: should clear the halt */ 1386 default: 1387 netif_info(tp, intr, tp->netdev, "intr status %d\n", status); 1388 goto resubmit; 1389 } 1390 1391 d = urb->transfer_buffer; 1392 if (INTR_LINK & __le16_to_cpu(d[0])) { 1393 if (!netif_carrier_ok(tp->netdev)) { 1394 set_bit(RTL8152_LINK_CHG, &tp->flags); 1395 schedule_delayed_work(&tp->schedule, 0); 1396 } 1397 } else { 1398 if (netif_carrier_ok(tp->netdev)) { 1399 netif_stop_queue(tp->netdev); 1400 set_bit(RTL8152_LINK_CHG, &tp->flags); 1401 schedule_delayed_work(&tp->schedule, 0); 1402 } 1403 } 1404 1405 resubmit: 1406 res = usb_submit_urb(urb, GFP_ATOMIC); 1407 if (res == -ENODEV) { 1408 set_bit(RTL8152_UNPLUG, &tp->flags); 1409 netif_device_detach(tp->netdev); 1410 } else if (res) { 1411 netif_err(tp, intr, tp->netdev, 1412 "can't resubmit intr, status %d\n", res); 1413 } 1414 } 1415 1416 static inline void *rx_agg_align(void *data) 1417 { 1418 return (void *)ALIGN((uintptr_t)data, RX_ALIGN); 1419 } 1420 1421 static inline void *tx_agg_align(void *data) 1422 { 1423 return (void *)ALIGN((uintptr_t)data, TX_ALIGN); 1424 } 1425 1426 static void free_all_mem(struct r8152 *tp) 1427 { 1428 int i; 1429 1430 for (i = 0; i < RTL8152_MAX_RX; i++) { 1431 usb_free_urb(tp->rx_info[i].urb); 1432 tp->rx_info[i].urb = NULL; 1433 1434 kfree(tp->rx_info[i].buffer); 1435 tp->rx_info[i].buffer = NULL; 1436 tp->rx_info[i].head = NULL; 1437 } 1438 1439 for (i = 0; i < RTL8152_MAX_TX; i++) { 1440 usb_free_urb(tp->tx_info[i].urb); 1441 tp->tx_info[i].urb = NULL; 1442 1443 kfree(tp->tx_info[i].buffer); 1444 tp->tx_info[i].buffer = NULL; 1445 tp->tx_info[i].head = NULL; 1446 } 1447 1448 usb_free_urb(tp->intr_urb); 1449 tp->intr_urb = NULL; 1450 1451 kfree(tp->intr_buff); 1452 tp->intr_buff = NULL; 1453 } 1454 1455 static int alloc_all_mem(struct r8152 *tp) 1456 { 1457 struct net_device *netdev = tp->netdev; 1458 struct usb_interface *intf = tp->intf; 1459 struct usb_host_interface *alt = intf->cur_altsetting; 1460 struct usb_host_endpoint *ep_intr = alt->endpoint + 2; 1461 struct urb *urb; 1462 int node, i; 1463 u8 *buf; 1464 1465 node = netdev->dev.parent ? dev_to_node(netdev->dev.parent) : -1; 1466 1467 spin_lock_init(&tp->rx_lock); 1468 spin_lock_init(&tp->tx_lock); 1469 INIT_LIST_HEAD(&tp->tx_free); 1470 INIT_LIST_HEAD(&tp->rx_done); 1471 skb_queue_head_init(&tp->tx_queue); 1472 skb_queue_head_init(&tp->rx_queue); 1473 1474 for (i = 0; i < RTL8152_MAX_RX; i++) { 1475 buf = kmalloc_node(agg_buf_sz, GFP_KERNEL, node); 1476 if (!buf) 1477 goto err1; 1478 1479 if (buf != rx_agg_align(buf)) { 1480 kfree(buf); 1481 buf = kmalloc_node(agg_buf_sz + RX_ALIGN, GFP_KERNEL, 1482 node); 1483 if (!buf) 1484 goto err1; 1485 } 1486 1487 urb = usb_alloc_urb(0, GFP_KERNEL); 1488 if (!urb) { 1489 kfree(buf); 1490 goto err1; 1491 } 1492 1493 INIT_LIST_HEAD(&tp->rx_info[i].list); 1494 tp->rx_info[i].context = tp; 1495 tp->rx_info[i].urb = urb; 1496 tp->rx_info[i].buffer = buf; 1497 tp->rx_info[i].head = rx_agg_align(buf); 1498 } 1499 1500 for (i = 0; i < RTL8152_MAX_TX; i++) { 1501 buf = kmalloc_node(agg_buf_sz, GFP_KERNEL, node); 1502 if (!buf) 1503 goto err1; 1504 1505 if (buf != tx_agg_align(buf)) { 1506 kfree(buf); 1507 buf = kmalloc_node(agg_buf_sz + TX_ALIGN, GFP_KERNEL, 1508 node); 1509 if (!buf) 1510 goto err1; 1511 } 1512 1513 urb = usb_alloc_urb(0, GFP_KERNEL); 1514 if (!urb) { 1515 kfree(buf); 1516 goto err1; 1517 } 1518 1519 INIT_LIST_HEAD(&tp->tx_info[i].list); 1520 tp->tx_info[i].context = tp; 1521 tp->tx_info[i].urb = urb; 1522 tp->tx_info[i].buffer = buf; 1523 tp->tx_info[i].head = tx_agg_align(buf); 1524 1525 list_add_tail(&tp->tx_info[i].list, &tp->tx_free); 1526 } 1527 1528 tp->intr_urb = usb_alloc_urb(0, GFP_KERNEL); 1529 if (!tp->intr_urb) 1530 goto err1; 1531 1532 tp->intr_buff = kmalloc(INTBUFSIZE, GFP_KERNEL); 1533 if (!tp->intr_buff) 1534 goto err1; 1535 1536 tp->intr_interval = (int)ep_intr->desc.bInterval; 1537 usb_fill_int_urb(tp->intr_urb, tp->udev, usb_rcvintpipe(tp->udev, 3), 1538 tp->intr_buff, INTBUFSIZE, intr_callback, 1539 tp, tp->intr_interval); 1540 1541 return 0; 1542 1543 err1: 1544 free_all_mem(tp); 1545 return -ENOMEM; 1546 } 1547 1548 static struct tx_agg *r8152_get_tx_agg(struct r8152 *tp) 1549 { 1550 struct tx_agg *agg = NULL; 1551 unsigned long flags; 1552 1553 if (list_empty(&tp->tx_free)) 1554 return NULL; 1555 1556 spin_lock_irqsave(&tp->tx_lock, flags); 1557 if (!list_empty(&tp->tx_free)) { 1558 struct list_head *cursor; 1559 1560 cursor = tp->tx_free.next; 1561 list_del_init(cursor); 1562 agg = list_entry(cursor, struct tx_agg, list); 1563 } 1564 spin_unlock_irqrestore(&tp->tx_lock, flags); 1565 1566 return agg; 1567 } 1568 1569 /* r8152_csum_workaround() 1570 * The hw limites the value the transport offset. When the offset is out of the 1571 * range, calculate the checksum by sw. 1572 */ 1573 static void r8152_csum_workaround(struct r8152 *tp, struct sk_buff *skb, 1574 struct sk_buff_head *list) 1575 { 1576 if (skb_shinfo(skb)->gso_size) { 1577 netdev_features_t features = tp->netdev->features; 1578 struct sk_buff_head seg_list; 1579 struct sk_buff *segs, *nskb; 1580 1581 features &= ~(NETIF_F_SG | NETIF_F_IPV6_CSUM | NETIF_F_TSO6); 1582 segs = skb_gso_segment(skb, features); 1583 if (IS_ERR(segs) || !segs) 1584 goto drop; 1585 1586 __skb_queue_head_init(&seg_list); 1587 1588 do { 1589 nskb = segs; 1590 segs = segs->next; 1591 nskb->next = NULL; 1592 __skb_queue_tail(&seg_list, nskb); 1593 } while (segs); 1594 1595 skb_queue_splice(&seg_list, list); 1596 dev_kfree_skb(skb); 1597 } else if (skb->ip_summed == CHECKSUM_PARTIAL) { 1598 if (skb_checksum_help(skb) < 0) 1599 goto drop; 1600 1601 __skb_queue_head(list, skb); 1602 } else { 1603 struct net_device_stats *stats; 1604 1605 drop: 1606 stats = &tp->netdev->stats; 1607 stats->tx_dropped++; 1608 dev_kfree_skb(skb); 1609 } 1610 } 1611 1612 /* msdn_giant_send_check() 1613 * According to the document of microsoft, the TCP Pseudo Header excludes the 1614 * packet length for IPv6 TCP large packets. 1615 */ 1616 static int msdn_giant_send_check(struct sk_buff *skb) 1617 { 1618 const struct ipv6hdr *ipv6h; 1619 struct tcphdr *th; 1620 int ret; 1621 1622 ret = skb_cow_head(skb, 0); 1623 if (ret) 1624 return ret; 1625 1626 ipv6h = ipv6_hdr(skb); 1627 th = tcp_hdr(skb); 1628 1629 th->check = 0; 1630 th->check = ~tcp_v6_check(0, &ipv6h->saddr, &ipv6h->daddr, 0); 1631 1632 return ret; 1633 } 1634 1635 static inline void rtl_tx_vlan_tag(struct tx_desc *desc, struct sk_buff *skb) 1636 { 1637 if (skb_vlan_tag_present(skb)) { 1638 u32 opts2; 1639 1640 opts2 = TX_VLAN_TAG | swab16(skb_vlan_tag_get(skb)); 1641 desc->opts2 |= cpu_to_le32(opts2); 1642 } 1643 } 1644 1645 static inline void rtl_rx_vlan_tag(struct rx_desc *desc, struct sk_buff *skb) 1646 { 1647 u32 opts2 = le32_to_cpu(desc->opts2); 1648 1649 if (opts2 & RX_VLAN_TAG) 1650 __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), 1651 swab16(opts2 & 0xffff)); 1652 } 1653 1654 static int r8152_tx_csum(struct r8152 *tp, struct tx_desc *desc, 1655 struct sk_buff *skb, u32 len, u32 transport_offset) 1656 { 1657 u32 mss = skb_shinfo(skb)->gso_size; 1658 u32 opts1, opts2 = 0; 1659 int ret = TX_CSUM_SUCCESS; 1660 1661 WARN_ON_ONCE(len > TX_LEN_MAX); 1662 1663 opts1 = len | TX_FS | TX_LS; 1664 1665 if (mss) { 1666 if (transport_offset > GTTCPHO_MAX) { 1667 netif_warn(tp, tx_err, tp->netdev, 1668 "Invalid transport offset 0x%x for TSO\n", 1669 transport_offset); 1670 ret = TX_CSUM_TSO; 1671 goto unavailable; 1672 } 1673 1674 switch (vlan_get_protocol(skb)) { 1675 case htons(ETH_P_IP): 1676 opts1 |= GTSENDV4; 1677 break; 1678 1679 case htons(ETH_P_IPV6): 1680 if (msdn_giant_send_check(skb)) { 1681 ret = TX_CSUM_TSO; 1682 goto unavailable; 1683 } 1684 opts1 |= GTSENDV6; 1685 break; 1686 1687 default: 1688 WARN_ON_ONCE(1); 1689 break; 1690 } 1691 1692 opts1 |= transport_offset << GTTCPHO_SHIFT; 1693 opts2 |= min(mss, MSS_MAX) << MSS_SHIFT; 1694 } else if (skb->ip_summed == CHECKSUM_PARTIAL) { 1695 u8 ip_protocol; 1696 1697 if (transport_offset > TCPHO_MAX) { 1698 netif_warn(tp, tx_err, tp->netdev, 1699 "Invalid transport offset 0x%x\n", 1700 transport_offset); 1701 ret = TX_CSUM_NONE; 1702 goto unavailable; 1703 } 1704 1705 switch (vlan_get_protocol(skb)) { 1706 case htons(ETH_P_IP): 1707 opts2 |= IPV4_CS; 1708 ip_protocol = ip_hdr(skb)->protocol; 1709 break; 1710 1711 case htons(ETH_P_IPV6): 1712 opts2 |= IPV6_CS; 1713 ip_protocol = ipv6_hdr(skb)->nexthdr; 1714 break; 1715 1716 default: 1717 ip_protocol = IPPROTO_RAW; 1718 break; 1719 } 1720 1721 if (ip_protocol == IPPROTO_TCP) 1722 opts2 |= TCP_CS; 1723 else if (ip_protocol == IPPROTO_UDP) 1724 opts2 |= UDP_CS; 1725 else 1726 WARN_ON_ONCE(1); 1727 1728 opts2 |= transport_offset << TCPHO_SHIFT; 1729 } 1730 1731 desc->opts2 = cpu_to_le32(opts2); 1732 desc->opts1 = cpu_to_le32(opts1); 1733 1734 unavailable: 1735 return ret; 1736 } 1737 1738 static int r8152_tx_agg_fill(struct r8152 *tp, struct tx_agg *agg) 1739 { 1740 struct sk_buff_head skb_head, *tx_queue = &tp->tx_queue; 1741 int remain, ret; 1742 u8 *tx_data; 1743 1744 __skb_queue_head_init(&skb_head); 1745 spin_lock(&tx_queue->lock); 1746 skb_queue_splice_init(tx_queue, &skb_head); 1747 spin_unlock(&tx_queue->lock); 1748 1749 tx_data = agg->head; 1750 agg->skb_num = 0; 1751 agg->skb_len = 0; 1752 remain = agg_buf_sz; 1753 1754 while (remain >= ETH_ZLEN + sizeof(struct tx_desc)) { 1755 struct tx_desc *tx_desc; 1756 struct sk_buff *skb; 1757 unsigned int len; 1758 u32 offset; 1759 1760 skb = __skb_dequeue(&skb_head); 1761 if (!skb) 1762 break; 1763 1764 len = skb->len + sizeof(*tx_desc); 1765 1766 if (len > remain) { 1767 __skb_queue_head(&skb_head, skb); 1768 break; 1769 } 1770 1771 tx_data = tx_agg_align(tx_data); 1772 tx_desc = (struct tx_desc *)tx_data; 1773 1774 offset = (u32)skb_transport_offset(skb); 1775 1776 if (r8152_tx_csum(tp, tx_desc, skb, skb->len, offset)) { 1777 r8152_csum_workaround(tp, skb, &skb_head); 1778 continue; 1779 } 1780 1781 rtl_tx_vlan_tag(tx_desc, skb); 1782 1783 tx_data += sizeof(*tx_desc); 1784 1785 len = skb->len; 1786 if (skb_copy_bits(skb, 0, tx_data, len) < 0) { 1787 struct net_device_stats *stats = &tp->netdev->stats; 1788 1789 stats->tx_dropped++; 1790 dev_kfree_skb_any(skb); 1791 tx_data -= sizeof(*tx_desc); 1792 continue; 1793 } 1794 1795 tx_data += len; 1796 agg->skb_len += len; 1797 agg->skb_num += skb_shinfo(skb)->gso_segs ?: 1; 1798 1799 dev_kfree_skb_any(skb); 1800 1801 remain = agg_buf_sz - (int)(tx_agg_align(tx_data) - agg->head); 1802 1803 if (test_bit(DELL_TB_RX_AGG_BUG, &tp->flags)) 1804 break; 1805 } 1806 1807 if (!skb_queue_empty(&skb_head)) { 1808 spin_lock(&tx_queue->lock); 1809 skb_queue_splice(&skb_head, tx_queue); 1810 spin_unlock(&tx_queue->lock); 1811 } 1812 1813 netif_tx_lock(tp->netdev); 1814 1815 if (netif_queue_stopped(tp->netdev) && 1816 skb_queue_len(&tp->tx_queue) < tp->tx_qlen) 1817 netif_wake_queue(tp->netdev); 1818 1819 netif_tx_unlock(tp->netdev); 1820 1821 ret = usb_autopm_get_interface_async(tp->intf); 1822 if (ret < 0) 1823 goto out_tx_fill; 1824 1825 usb_fill_bulk_urb(agg->urb, tp->udev, usb_sndbulkpipe(tp->udev, 2), 1826 agg->head, (int)(tx_data - (u8 *)agg->head), 1827 (usb_complete_t)write_bulk_callback, agg); 1828 1829 ret = usb_submit_urb(agg->urb, GFP_ATOMIC); 1830 if (ret < 0) 1831 usb_autopm_put_interface_async(tp->intf); 1832 1833 out_tx_fill: 1834 return ret; 1835 } 1836 1837 static u8 r8152_rx_csum(struct r8152 *tp, struct rx_desc *rx_desc) 1838 { 1839 u8 checksum = CHECKSUM_NONE; 1840 u32 opts2, opts3; 1841 1842 if (!(tp->netdev->features & NETIF_F_RXCSUM)) 1843 goto return_result; 1844 1845 opts2 = le32_to_cpu(rx_desc->opts2); 1846 opts3 = le32_to_cpu(rx_desc->opts3); 1847 1848 if (opts2 & RD_IPV4_CS) { 1849 if (opts3 & IPF) 1850 checksum = CHECKSUM_NONE; 1851 else if ((opts2 & RD_UDP_CS) && !(opts3 & UDPF)) 1852 checksum = CHECKSUM_UNNECESSARY; 1853 else if ((opts2 & RD_TCP_CS) && !(opts3 & TCPF)) 1854 checksum = CHECKSUM_UNNECESSARY; 1855 } else if (opts2 & RD_IPV6_CS) { 1856 if ((opts2 & RD_UDP_CS) && !(opts3 & UDPF)) 1857 checksum = CHECKSUM_UNNECESSARY; 1858 else if ((opts2 & RD_TCP_CS) && !(opts3 & TCPF)) 1859 checksum = CHECKSUM_UNNECESSARY; 1860 } 1861 1862 return_result: 1863 return checksum; 1864 } 1865 1866 static int rx_bottom(struct r8152 *tp, int budget) 1867 { 1868 unsigned long flags; 1869 struct list_head *cursor, *next, rx_queue; 1870 int ret = 0, work_done = 0; 1871 struct napi_struct *napi = &tp->napi; 1872 1873 if (!skb_queue_empty(&tp->rx_queue)) { 1874 while (work_done < budget) { 1875 struct sk_buff *skb = __skb_dequeue(&tp->rx_queue); 1876 struct net_device *netdev = tp->netdev; 1877 struct net_device_stats *stats = &netdev->stats; 1878 unsigned int pkt_len; 1879 1880 if (!skb) 1881 break; 1882 1883 pkt_len = skb->len; 1884 napi_gro_receive(napi, skb); 1885 work_done++; 1886 stats->rx_packets++; 1887 stats->rx_bytes += pkt_len; 1888 } 1889 } 1890 1891 if (list_empty(&tp->rx_done)) 1892 goto out1; 1893 1894 INIT_LIST_HEAD(&rx_queue); 1895 spin_lock_irqsave(&tp->rx_lock, flags); 1896 list_splice_init(&tp->rx_done, &rx_queue); 1897 spin_unlock_irqrestore(&tp->rx_lock, flags); 1898 1899 list_for_each_safe(cursor, next, &rx_queue) { 1900 struct rx_desc *rx_desc; 1901 struct rx_agg *agg; 1902 int len_used = 0; 1903 struct urb *urb; 1904 u8 *rx_data; 1905 1906 list_del_init(cursor); 1907 1908 agg = list_entry(cursor, struct rx_agg, list); 1909 urb = agg->urb; 1910 if (urb->actual_length < ETH_ZLEN) 1911 goto submit; 1912 1913 rx_desc = agg->head; 1914 rx_data = agg->head; 1915 len_used += sizeof(struct rx_desc); 1916 1917 while (urb->actual_length > len_used) { 1918 struct net_device *netdev = tp->netdev; 1919 struct net_device_stats *stats = &netdev->stats; 1920 unsigned int pkt_len; 1921 struct sk_buff *skb; 1922 1923 /* limite the skb numbers for rx_queue */ 1924 if (unlikely(skb_queue_len(&tp->rx_queue) >= 1000)) 1925 break; 1926 1927 pkt_len = le32_to_cpu(rx_desc->opts1) & RX_LEN_MASK; 1928 if (pkt_len < ETH_ZLEN) 1929 break; 1930 1931 len_used += pkt_len; 1932 if (urb->actual_length < len_used) 1933 break; 1934 1935 pkt_len -= ETH_FCS_LEN; 1936 rx_data += sizeof(struct rx_desc); 1937 1938 skb = napi_alloc_skb(napi, pkt_len); 1939 if (!skb) { 1940 stats->rx_dropped++; 1941 goto find_next_rx; 1942 } 1943 1944 skb->ip_summed = r8152_rx_csum(tp, rx_desc); 1945 memcpy(skb->data, rx_data, pkt_len); 1946 skb_put(skb, pkt_len); 1947 skb->protocol = eth_type_trans(skb, netdev); 1948 rtl_rx_vlan_tag(rx_desc, skb); 1949 if (work_done < budget) { 1950 napi_gro_receive(napi, skb); 1951 work_done++; 1952 stats->rx_packets++; 1953 stats->rx_bytes += pkt_len; 1954 } else { 1955 __skb_queue_tail(&tp->rx_queue, skb); 1956 } 1957 1958 find_next_rx: 1959 rx_data = rx_agg_align(rx_data + pkt_len + ETH_FCS_LEN); 1960 rx_desc = (struct rx_desc *)rx_data; 1961 len_used = (int)(rx_data - (u8 *)agg->head); 1962 len_used += sizeof(struct rx_desc); 1963 } 1964 1965 submit: 1966 if (!ret) { 1967 ret = r8152_submit_rx(tp, agg, GFP_ATOMIC); 1968 } else { 1969 urb->actual_length = 0; 1970 list_add_tail(&agg->list, next); 1971 } 1972 } 1973 1974 if (!list_empty(&rx_queue)) { 1975 spin_lock_irqsave(&tp->rx_lock, flags); 1976 list_splice_tail(&rx_queue, &tp->rx_done); 1977 spin_unlock_irqrestore(&tp->rx_lock, flags); 1978 } 1979 1980 out1: 1981 return work_done; 1982 } 1983 1984 static void tx_bottom(struct r8152 *tp) 1985 { 1986 int res; 1987 1988 do { 1989 struct tx_agg *agg; 1990 1991 if (skb_queue_empty(&tp->tx_queue)) 1992 break; 1993 1994 agg = r8152_get_tx_agg(tp); 1995 if (!agg) 1996 break; 1997 1998 res = r8152_tx_agg_fill(tp, agg); 1999 if (res) { 2000 struct net_device *netdev = tp->netdev; 2001 2002 if (res == -ENODEV) { 2003 set_bit(RTL8152_UNPLUG, &tp->flags); 2004 netif_device_detach(netdev); 2005 } else { 2006 struct net_device_stats *stats = &netdev->stats; 2007 unsigned long flags; 2008 2009 netif_warn(tp, tx_err, netdev, 2010 "failed tx_urb %d\n", res); 2011 stats->tx_dropped += agg->skb_num; 2012 2013 spin_lock_irqsave(&tp->tx_lock, flags); 2014 list_add_tail(&agg->list, &tp->tx_free); 2015 spin_unlock_irqrestore(&tp->tx_lock, flags); 2016 } 2017 } 2018 } while (res == 0); 2019 } 2020 2021 static void bottom_half(struct r8152 *tp) 2022 { 2023 if (test_bit(RTL8152_UNPLUG, &tp->flags)) 2024 return; 2025 2026 if (!test_bit(WORK_ENABLE, &tp->flags)) 2027 return; 2028 2029 /* When link down, the driver would cancel all bulks. */ 2030 /* This avoid the re-submitting bulk */ 2031 if (!netif_carrier_ok(tp->netdev)) 2032 return; 2033 2034 clear_bit(SCHEDULE_NAPI, &tp->flags); 2035 2036 tx_bottom(tp); 2037 } 2038 2039 static int r8152_poll(struct napi_struct *napi, int budget) 2040 { 2041 struct r8152 *tp = container_of(napi, struct r8152, napi); 2042 int work_done; 2043 2044 work_done = rx_bottom(tp, budget); 2045 bottom_half(tp); 2046 2047 if (work_done < budget) { 2048 if (!napi_complete_done(napi, work_done)) 2049 goto out; 2050 if (!list_empty(&tp->rx_done)) 2051 napi_schedule(napi); 2052 else if (!skb_queue_empty(&tp->tx_queue) && 2053 !list_empty(&tp->tx_free)) 2054 napi_schedule(napi); 2055 } 2056 2057 out: 2058 return work_done; 2059 } 2060 2061 static 2062 int r8152_submit_rx(struct r8152 *tp, struct rx_agg *agg, gfp_t mem_flags) 2063 { 2064 int ret; 2065 2066 /* The rx would be stopped, so skip submitting */ 2067 if (test_bit(RTL8152_UNPLUG, &tp->flags) || 2068 !test_bit(WORK_ENABLE, &tp->flags) || !netif_carrier_ok(tp->netdev)) 2069 return 0; 2070 2071 usb_fill_bulk_urb(agg->urb, tp->udev, usb_rcvbulkpipe(tp->udev, 1), 2072 agg->head, agg_buf_sz, 2073 (usb_complete_t)read_bulk_callback, agg); 2074 2075 ret = usb_submit_urb(agg->urb, mem_flags); 2076 if (ret == -ENODEV) { 2077 set_bit(RTL8152_UNPLUG, &tp->flags); 2078 netif_device_detach(tp->netdev); 2079 } else if (ret) { 2080 struct urb *urb = agg->urb; 2081 unsigned long flags; 2082 2083 urb->actual_length = 0; 2084 spin_lock_irqsave(&tp->rx_lock, flags); 2085 list_add_tail(&agg->list, &tp->rx_done); 2086 spin_unlock_irqrestore(&tp->rx_lock, flags); 2087 2088 netif_err(tp, rx_err, tp->netdev, 2089 "Couldn't submit rx[%p], ret = %d\n", agg, ret); 2090 2091 napi_schedule(&tp->napi); 2092 } 2093 2094 return ret; 2095 } 2096 2097 static void rtl_drop_queued_tx(struct r8152 *tp) 2098 { 2099 struct net_device_stats *stats = &tp->netdev->stats; 2100 struct sk_buff_head skb_head, *tx_queue = &tp->tx_queue; 2101 struct sk_buff *skb; 2102 2103 if (skb_queue_empty(tx_queue)) 2104 return; 2105 2106 __skb_queue_head_init(&skb_head); 2107 spin_lock_bh(&tx_queue->lock); 2108 skb_queue_splice_init(tx_queue, &skb_head); 2109 spin_unlock_bh(&tx_queue->lock); 2110 2111 while ((skb = __skb_dequeue(&skb_head))) { 2112 dev_kfree_skb(skb); 2113 stats->tx_dropped++; 2114 } 2115 } 2116 2117 static void rtl8152_tx_timeout(struct net_device *netdev) 2118 { 2119 struct r8152 *tp = netdev_priv(netdev); 2120 2121 netif_warn(tp, tx_err, netdev, "Tx timeout\n"); 2122 2123 usb_queue_reset_device(tp->intf); 2124 } 2125 2126 static void rtl8152_set_rx_mode(struct net_device *netdev) 2127 { 2128 struct r8152 *tp = netdev_priv(netdev); 2129 2130 if (netif_carrier_ok(netdev)) { 2131 set_bit(RTL8152_SET_RX_MODE, &tp->flags); 2132 schedule_delayed_work(&tp->schedule, 0); 2133 } 2134 } 2135 2136 static void _rtl8152_set_rx_mode(struct net_device *netdev) 2137 { 2138 struct r8152 *tp = netdev_priv(netdev); 2139 u32 mc_filter[2]; /* Multicast hash filter */ 2140 __le32 tmp[2]; 2141 u32 ocp_data; 2142 2143 netif_stop_queue(netdev); 2144 ocp_data = ocp_read_dword(tp, MCU_TYPE_PLA, PLA_RCR); 2145 ocp_data &= ~RCR_ACPT_ALL; 2146 ocp_data |= RCR_AB | RCR_APM; 2147 2148 if (netdev->flags & IFF_PROMISC) { 2149 /* Unconditionally log net taps. */ 2150 netif_notice(tp, link, netdev, "Promiscuous mode enabled\n"); 2151 ocp_data |= RCR_AM | RCR_AAP; 2152 mc_filter[1] = 0xffffffff; 2153 mc_filter[0] = 0xffffffff; 2154 } else if ((netdev_mc_count(netdev) > multicast_filter_limit) || 2155 (netdev->flags & IFF_ALLMULTI)) { 2156 /* Too many to filter perfectly -- accept all multicasts. */ 2157 ocp_data |= RCR_AM; 2158 mc_filter[1] = 0xffffffff; 2159 mc_filter[0] = 0xffffffff; 2160 } else { 2161 struct netdev_hw_addr *ha; 2162 2163 mc_filter[1] = 0; 2164 mc_filter[0] = 0; 2165 netdev_for_each_mc_addr(ha, netdev) { 2166 int bit_nr = ether_crc(ETH_ALEN, ha->addr) >> 26; 2167 2168 mc_filter[bit_nr >> 5] |= 1 << (bit_nr & 31); 2169 ocp_data |= RCR_AM; 2170 } 2171 } 2172 2173 tmp[0] = __cpu_to_le32(swab32(mc_filter[1])); 2174 tmp[1] = __cpu_to_le32(swab32(mc_filter[0])); 2175 2176 pla_ocp_write(tp, PLA_MAR, BYTE_EN_DWORD, sizeof(tmp), tmp); 2177 ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RCR, ocp_data); 2178 netif_wake_queue(netdev); 2179 } 2180 2181 static netdev_features_t 2182 rtl8152_features_check(struct sk_buff *skb, struct net_device *dev, 2183 netdev_features_t features) 2184 { 2185 u32 mss = skb_shinfo(skb)->gso_size; 2186 int max_offset = mss ? GTTCPHO_MAX : TCPHO_MAX; 2187 int offset = skb_transport_offset(skb); 2188 2189 if ((mss || skb->ip_summed == CHECKSUM_PARTIAL) && offset > max_offset) 2190 features &= ~(NETIF_F_CSUM_MASK | NETIF_F_GSO_MASK); 2191 else if ((skb->len + sizeof(struct tx_desc)) > agg_buf_sz) 2192 features &= ~NETIF_F_GSO_MASK; 2193 2194 return features; 2195 } 2196 2197 static netdev_tx_t rtl8152_start_xmit(struct sk_buff *skb, 2198 struct net_device *netdev) 2199 { 2200 struct r8152 *tp = netdev_priv(netdev); 2201 2202 skb_tx_timestamp(skb); 2203 2204 skb_queue_tail(&tp->tx_queue, skb); 2205 2206 if (!list_empty(&tp->tx_free)) { 2207 if (test_bit(SELECTIVE_SUSPEND, &tp->flags)) { 2208 set_bit(SCHEDULE_NAPI, &tp->flags); 2209 schedule_delayed_work(&tp->schedule, 0); 2210 } else { 2211 usb_mark_last_busy(tp->udev); 2212 napi_schedule(&tp->napi); 2213 } 2214 } else if (skb_queue_len(&tp->tx_queue) > tp->tx_qlen) { 2215 netif_stop_queue(netdev); 2216 } 2217 2218 return NETDEV_TX_OK; 2219 } 2220 2221 static void r8152b_reset_packet_filter(struct r8152 *tp) 2222 { 2223 u32 ocp_data; 2224 2225 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_FMC); 2226 ocp_data &= ~FMC_FCR_MCU_EN; 2227 ocp_write_word(tp, MCU_TYPE_PLA, PLA_FMC, ocp_data); 2228 ocp_data |= FMC_FCR_MCU_EN; 2229 ocp_write_word(tp, MCU_TYPE_PLA, PLA_FMC, ocp_data); 2230 } 2231 2232 static void rtl8152_nic_reset(struct r8152 *tp) 2233 { 2234 int i; 2235 2236 ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CR, CR_RST); 2237 2238 for (i = 0; i < 1000; i++) { 2239 if (!(ocp_read_byte(tp, MCU_TYPE_PLA, PLA_CR) & CR_RST)) 2240 break; 2241 usleep_range(100, 400); 2242 } 2243 } 2244 2245 static void set_tx_qlen(struct r8152 *tp) 2246 { 2247 struct net_device *netdev = tp->netdev; 2248 2249 tp->tx_qlen = agg_buf_sz / (netdev->mtu + VLAN_ETH_HLEN + ETH_FCS_LEN + 2250 sizeof(struct tx_desc)); 2251 } 2252 2253 static inline u8 rtl8152_get_speed(struct r8152 *tp) 2254 { 2255 return ocp_read_byte(tp, MCU_TYPE_PLA, PLA_PHYSTATUS); 2256 } 2257 2258 static void rtl_set_eee_plus(struct r8152 *tp) 2259 { 2260 u32 ocp_data; 2261 u8 speed; 2262 2263 speed = rtl8152_get_speed(tp); 2264 if (speed & _10bps) { 2265 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_EEEP_CR); 2266 ocp_data |= EEEP_CR_EEEP_TX; 2267 ocp_write_word(tp, MCU_TYPE_PLA, PLA_EEEP_CR, ocp_data); 2268 } else { 2269 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_EEEP_CR); 2270 ocp_data &= ~EEEP_CR_EEEP_TX; 2271 ocp_write_word(tp, MCU_TYPE_PLA, PLA_EEEP_CR, ocp_data); 2272 } 2273 } 2274 2275 static void rxdy_gated_en(struct r8152 *tp, bool enable) 2276 { 2277 u32 ocp_data; 2278 2279 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_MISC_1); 2280 if (enable) 2281 ocp_data |= RXDY_GATED_EN; 2282 else 2283 ocp_data &= ~RXDY_GATED_EN; 2284 ocp_write_word(tp, MCU_TYPE_PLA, PLA_MISC_1, ocp_data); 2285 } 2286 2287 static int rtl_start_rx(struct r8152 *tp) 2288 { 2289 int i, ret = 0; 2290 2291 INIT_LIST_HEAD(&tp->rx_done); 2292 for (i = 0; i < RTL8152_MAX_RX; i++) { 2293 INIT_LIST_HEAD(&tp->rx_info[i].list); 2294 ret = r8152_submit_rx(tp, &tp->rx_info[i], GFP_KERNEL); 2295 if (ret) 2296 break; 2297 } 2298 2299 if (ret && ++i < RTL8152_MAX_RX) { 2300 struct list_head rx_queue; 2301 unsigned long flags; 2302 2303 INIT_LIST_HEAD(&rx_queue); 2304 2305 do { 2306 struct rx_agg *agg = &tp->rx_info[i++]; 2307 struct urb *urb = agg->urb; 2308 2309 urb->actual_length = 0; 2310 list_add_tail(&agg->list, &rx_queue); 2311 } while (i < RTL8152_MAX_RX); 2312 2313 spin_lock_irqsave(&tp->rx_lock, flags); 2314 list_splice_tail(&rx_queue, &tp->rx_done); 2315 spin_unlock_irqrestore(&tp->rx_lock, flags); 2316 } 2317 2318 return ret; 2319 } 2320 2321 static int rtl_stop_rx(struct r8152 *tp) 2322 { 2323 int i; 2324 2325 for (i = 0; i < RTL8152_MAX_RX; i++) 2326 usb_kill_urb(tp->rx_info[i].urb); 2327 2328 while (!skb_queue_empty(&tp->rx_queue)) 2329 dev_kfree_skb(__skb_dequeue(&tp->rx_queue)); 2330 2331 return 0; 2332 } 2333 2334 static int rtl_enable(struct r8152 *tp) 2335 { 2336 u32 ocp_data; 2337 2338 r8152b_reset_packet_filter(tp); 2339 2340 ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_CR); 2341 ocp_data |= CR_RE | CR_TE; 2342 ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CR, ocp_data); 2343 2344 rxdy_gated_en(tp, false); 2345 2346 return 0; 2347 } 2348 2349 static int rtl8152_enable(struct r8152 *tp) 2350 { 2351 if (test_bit(RTL8152_UNPLUG, &tp->flags)) 2352 return -ENODEV; 2353 2354 set_tx_qlen(tp); 2355 rtl_set_eee_plus(tp); 2356 2357 return rtl_enable(tp); 2358 } 2359 2360 static inline void r8153b_rx_agg_chg_indicate(struct r8152 *tp) 2361 { 2362 ocp_write_byte(tp, MCU_TYPE_USB, USB_UPT_RXDMA_OWN, 2363 OWN_UPDATE | OWN_CLEAR); 2364 } 2365 2366 static void r8153_set_rx_early_timeout(struct r8152 *tp) 2367 { 2368 u32 ocp_data = tp->coalesce / 8; 2369 2370 switch (tp->version) { 2371 case RTL_VER_03: 2372 case RTL_VER_04: 2373 case RTL_VER_05: 2374 case RTL_VER_06: 2375 ocp_write_word(tp, MCU_TYPE_USB, USB_RX_EARLY_TIMEOUT, 2376 ocp_data); 2377 break; 2378 2379 case RTL_VER_08: 2380 case RTL_VER_09: 2381 /* The RTL8153B uses USB_RX_EXTRA_AGGR_TMR for rx timeout 2382 * primarily. For USB_RX_EARLY_TIMEOUT, we fix it to 128ns. 2383 */ 2384 ocp_write_word(tp, MCU_TYPE_USB, USB_RX_EARLY_TIMEOUT, 2385 128 / 8); 2386 ocp_write_word(tp, MCU_TYPE_USB, USB_RX_EXTRA_AGGR_TMR, 2387 ocp_data); 2388 r8153b_rx_agg_chg_indicate(tp); 2389 break; 2390 2391 default: 2392 break; 2393 } 2394 } 2395 2396 static void r8153_set_rx_early_size(struct r8152 *tp) 2397 { 2398 u32 ocp_data = agg_buf_sz - rx_reserved_size(tp->netdev->mtu); 2399 2400 switch (tp->version) { 2401 case RTL_VER_03: 2402 case RTL_VER_04: 2403 case RTL_VER_05: 2404 case RTL_VER_06: 2405 ocp_write_word(tp, MCU_TYPE_USB, USB_RX_EARLY_SIZE, 2406 ocp_data / 4); 2407 break; 2408 case RTL_VER_08: 2409 case RTL_VER_09: 2410 ocp_write_word(tp, MCU_TYPE_USB, USB_RX_EARLY_SIZE, 2411 ocp_data / 8); 2412 r8153b_rx_agg_chg_indicate(tp); 2413 break; 2414 default: 2415 WARN_ON_ONCE(1); 2416 break; 2417 } 2418 } 2419 2420 static int rtl8153_enable(struct r8152 *tp) 2421 { 2422 if (test_bit(RTL8152_UNPLUG, &tp->flags)) 2423 return -ENODEV; 2424 2425 set_tx_qlen(tp); 2426 rtl_set_eee_plus(tp); 2427 r8153_set_rx_early_timeout(tp); 2428 r8153_set_rx_early_size(tp); 2429 2430 return rtl_enable(tp); 2431 } 2432 2433 static void rtl_disable(struct r8152 *tp) 2434 { 2435 u32 ocp_data; 2436 int i; 2437 2438 if (test_bit(RTL8152_UNPLUG, &tp->flags)) { 2439 rtl_drop_queued_tx(tp); 2440 return; 2441 } 2442 2443 ocp_data = ocp_read_dword(tp, MCU_TYPE_PLA, PLA_RCR); 2444 ocp_data &= ~RCR_ACPT_ALL; 2445 ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RCR, ocp_data); 2446 2447 rtl_drop_queued_tx(tp); 2448 2449 for (i = 0; i < RTL8152_MAX_TX; i++) 2450 usb_kill_urb(tp->tx_info[i].urb); 2451 2452 rxdy_gated_en(tp, true); 2453 2454 for (i = 0; i < 1000; i++) { 2455 ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL); 2456 if ((ocp_data & FIFO_EMPTY) == FIFO_EMPTY) 2457 break; 2458 usleep_range(1000, 2000); 2459 } 2460 2461 for (i = 0; i < 1000; i++) { 2462 if (ocp_read_word(tp, MCU_TYPE_PLA, PLA_TCR0) & TCR0_TX_EMPTY) 2463 break; 2464 usleep_range(1000, 2000); 2465 } 2466 2467 rtl_stop_rx(tp); 2468 2469 rtl8152_nic_reset(tp); 2470 } 2471 2472 static void r8152_power_cut_en(struct r8152 *tp, bool enable) 2473 { 2474 u32 ocp_data; 2475 2476 ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_UPS_CTRL); 2477 if (enable) 2478 ocp_data |= POWER_CUT; 2479 else 2480 ocp_data &= ~POWER_CUT; 2481 ocp_write_word(tp, MCU_TYPE_USB, USB_UPS_CTRL, ocp_data); 2482 2483 ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_PM_CTRL_STATUS); 2484 ocp_data &= ~RESUME_INDICATE; 2485 ocp_write_word(tp, MCU_TYPE_USB, USB_PM_CTRL_STATUS, ocp_data); 2486 } 2487 2488 static void rtl_rx_vlan_en(struct r8152 *tp, bool enable) 2489 { 2490 u32 ocp_data; 2491 2492 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_CPCR); 2493 if (enable) 2494 ocp_data |= CPCR_RX_VLAN; 2495 else 2496 ocp_data &= ~CPCR_RX_VLAN; 2497 ocp_write_word(tp, MCU_TYPE_PLA, PLA_CPCR, ocp_data); 2498 } 2499 2500 static int rtl8152_set_features(struct net_device *dev, 2501 netdev_features_t features) 2502 { 2503 netdev_features_t changed = features ^ dev->features; 2504 struct r8152 *tp = netdev_priv(dev); 2505 int ret; 2506 2507 ret = usb_autopm_get_interface(tp->intf); 2508 if (ret < 0) 2509 goto out; 2510 2511 mutex_lock(&tp->control); 2512 2513 if (changed & NETIF_F_HW_VLAN_CTAG_RX) { 2514 if (features & NETIF_F_HW_VLAN_CTAG_RX) 2515 rtl_rx_vlan_en(tp, true); 2516 else 2517 rtl_rx_vlan_en(tp, false); 2518 } 2519 2520 mutex_unlock(&tp->control); 2521 2522 usb_autopm_put_interface(tp->intf); 2523 2524 out: 2525 return ret; 2526 } 2527 2528 #define WAKE_ANY (WAKE_PHY | WAKE_MAGIC | WAKE_UCAST | WAKE_BCAST | WAKE_MCAST) 2529 2530 static u32 __rtl_get_wol(struct r8152 *tp) 2531 { 2532 u32 ocp_data; 2533 u32 wolopts = 0; 2534 2535 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_CONFIG34); 2536 if (ocp_data & LINK_ON_WAKE_EN) 2537 wolopts |= WAKE_PHY; 2538 2539 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_CONFIG5); 2540 if (ocp_data & UWF_EN) 2541 wolopts |= WAKE_UCAST; 2542 if (ocp_data & BWF_EN) 2543 wolopts |= WAKE_BCAST; 2544 if (ocp_data & MWF_EN) 2545 wolopts |= WAKE_MCAST; 2546 2547 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_CFG_WOL); 2548 if (ocp_data & MAGIC_EN) 2549 wolopts |= WAKE_MAGIC; 2550 2551 return wolopts; 2552 } 2553 2554 static void __rtl_set_wol(struct r8152 *tp, u32 wolopts) 2555 { 2556 u32 ocp_data; 2557 2558 ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CRWECR, CRWECR_CONFIG); 2559 2560 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_CONFIG34); 2561 ocp_data &= ~LINK_ON_WAKE_EN; 2562 if (wolopts & WAKE_PHY) 2563 ocp_data |= LINK_ON_WAKE_EN; 2564 ocp_write_word(tp, MCU_TYPE_PLA, PLA_CONFIG34, ocp_data); 2565 2566 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_CONFIG5); 2567 ocp_data &= ~(UWF_EN | BWF_EN | MWF_EN); 2568 if (wolopts & WAKE_UCAST) 2569 ocp_data |= UWF_EN; 2570 if (wolopts & WAKE_BCAST) 2571 ocp_data |= BWF_EN; 2572 if (wolopts & WAKE_MCAST) 2573 ocp_data |= MWF_EN; 2574 ocp_write_word(tp, MCU_TYPE_PLA, PLA_CONFIG5, ocp_data); 2575 2576 ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CRWECR, CRWECR_NORAML); 2577 2578 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_CFG_WOL); 2579 ocp_data &= ~MAGIC_EN; 2580 if (wolopts & WAKE_MAGIC) 2581 ocp_data |= MAGIC_EN; 2582 ocp_write_word(tp, MCU_TYPE_PLA, PLA_CFG_WOL, ocp_data); 2583 2584 if (wolopts & WAKE_ANY) 2585 device_set_wakeup_enable(&tp->udev->dev, true); 2586 else 2587 device_set_wakeup_enable(&tp->udev->dev, false); 2588 } 2589 2590 static void r8153_mac_clk_spd(struct r8152 *tp, bool enable) 2591 { 2592 /* MAC clock speed down */ 2593 if (enable) { 2594 ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL, 2595 ALDPS_SPDWN_RATIO); 2596 ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL2, 2597 EEE_SPDWN_RATIO); 2598 ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL3, 2599 PKT_AVAIL_SPDWN_EN | SUSPEND_SPDWN_EN | 2600 U1U2_SPDWN_EN | L1_SPDWN_EN); 2601 ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL4, 2602 PWRSAVE_SPDWN_EN | RXDV_SPDWN_EN | TX10MIDLE_EN | 2603 TP100_SPDWN_EN | TP500_SPDWN_EN | EEE_SPDWN_EN | 2604 TP1000_SPDWN_EN); 2605 } else { 2606 ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL, 0); 2607 ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL2, 0); 2608 ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL3, 0); 2609 ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL4, 0); 2610 } 2611 } 2612 2613 static void r8153_u1u2en(struct r8152 *tp, bool enable) 2614 { 2615 u8 u1u2[8]; 2616 2617 if (enable) 2618 memset(u1u2, 0xff, sizeof(u1u2)); 2619 else 2620 memset(u1u2, 0x00, sizeof(u1u2)); 2621 2622 usb_ocp_write(tp, USB_TOLERANCE, BYTE_EN_SIX_BYTES, sizeof(u1u2), u1u2); 2623 } 2624 2625 static void r8153b_u1u2en(struct r8152 *tp, bool enable) 2626 { 2627 u32 ocp_data; 2628 2629 ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_LPM_CONFIG); 2630 if (enable) 2631 ocp_data |= LPM_U1U2_EN; 2632 else 2633 ocp_data &= ~LPM_U1U2_EN; 2634 2635 ocp_write_word(tp, MCU_TYPE_USB, USB_LPM_CONFIG, ocp_data); 2636 } 2637 2638 static void r8153_u2p3en(struct r8152 *tp, bool enable) 2639 { 2640 u32 ocp_data; 2641 2642 ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_U2P3_CTRL); 2643 if (enable) 2644 ocp_data |= U2P3_ENABLE; 2645 else 2646 ocp_data &= ~U2P3_ENABLE; 2647 ocp_write_word(tp, MCU_TYPE_USB, USB_U2P3_CTRL, ocp_data); 2648 } 2649 2650 static void r8153b_ups_flags_w1w0(struct r8152 *tp, u32 set, u32 clear) 2651 { 2652 u32 ocp_data; 2653 2654 ocp_data = ocp_read_dword(tp, MCU_TYPE_USB, USB_UPS_FLAGS); 2655 ocp_data &= ~clear; 2656 ocp_data |= set; 2657 ocp_write_dword(tp, MCU_TYPE_USB, USB_UPS_FLAGS, ocp_data); 2658 } 2659 2660 static void r8153b_green_en(struct r8152 *tp, bool enable) 2661 { 2662 u16 data; 2663 2664 if (enable) { 2665 sram_write(tp, 0x8045, 0); /* 10M abiq&ldvbias */ 2666 sram_write(tp, 0x804d, 0x1222); /* 100M short abiq&ldvbias */ 2667 sram_write(tp, 0x805d, 0x0022); /* 1000M short abiq&ldvbias */ 2668 } else { 2669 sram_write(tp, 0x8045, 0x2444); /* 10M abiq&ldvbias */ 2670 sram_write(tp, 0x804d, 0x2444); /* 100M short abiq&ldvbias */ 2671 sram_write(tp, 0x805d, 0x2444); /* 1000M short abiq&ldvbias */ 2672 } 2673 2674 data = sram_read(tp, SRAM_GREEN_CFG); 2675 data |= GREEN_ETH_EN; 2676 sram_write(tp, SRAM_GREEN_CFG, data); 2677 2678 r8153b_ups_flags_w1w0(tp, UPS_FLAGS_EN_GREEN, 0); 2679 } 2680 2681 static u16 r8153_phy_status(struct r8152 *tp, u16 desired) 2682 { 2683 u16 data; 2684 int i; 2685 2686 for (i = 0; i < 500; i++) { 2687 data = ocp_reg_read(tp, OCP_PHY_STATUS); 2688 data &= PHY_STAT_MASK; 2689 if (desired) { 2690 if (data == desired) 2691 break; 2692 } else if (data == PHY_STAT_LAN_ON || data == PHY_STAT_PWRDN || 2693 data == PHY_STAT_EXT_INIT) { 2694 break; 2695 } 2696 2697 msleep(20); 2698 } 2699 2700 return data; 2701 } 2702 2703 static void r8153b_ups_en(struct r8152 *tp, bool enable) 2704 { 2705 u32 ocp_data = ocp_read_byte(tp, MCU_TYPE_USB, USB_POWER_CUT); 2706 2707 if (enable) { 2708 ocp_data |= UPS_EN | USP_PREWAKE | PHASE2_EN; 2709 ocp_write_byte(tp, MCU_TYPE_USB, USB_POWER_CUT, ocp_data); 2710 2711 ocp_data = ocp_read_byte(tp, MCU_TYPE_USB, 0xcfff); 2712 ocp_data |= BIT(0); 2713 ocp_write_byte(tp, MCU_TYPE_USB, 0xcfff, ocp_data); 2714 } else { 2715 u16 data; 2716 2717 ocp_data &= ~(UPS_EN | USP_PREWAKE); 2718 ocp_write_byte(tp, MCU_TYPE_USB, USB_POWER_CUT, ocp_data); 2719 2720 ocp_data = ocp_read_byte(tp, MCU_TYPE_USB, 0xcfff); 2721 ocp_data &= ~BIT(0); 2722 ocp_write_byte(tp, MCU_TYPE_USB, 0xcfff, ocp_data); 2723 2724 ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_MISC_0); 2725 ocp_data &= ~PCUT_STATUS; 2726 ocp_write_word(tp, MCU_TYPE_USB, USB_MISC_0, ocp_data); 2727 2728 data = r8153_phy_status(tp, 0); 2729 2730 switch (data) { 2731 case PHY_STAT_PWRDN: 2732 case PHY_STAT_EXT_INIT: 2733 r8153b_green_en(tp, 2734 test_bit(GREEN_ETHERNET, &tp->flags)); 2735 2736 data = r8152_mdio_read(tp, MII_BMCR); 2737 data &= ~BMCR_PDOWN; 2738 data |= BMCR_RESET; 2739 r8152_mdio_write(tp, MII_BMCR, data); 2740 2741 data = r8153_phy_status(tp, PHY_STAT_LAN_ON); 2742 2743 default: 2744 if (data != PHY_STAT_LAN_ON) 2745 netif_warn(tp, link, tp->netdev, 2746 "PHY not ready"); 2747 break; 2748 } 2749 } 2750 } 2751 2752 static void r8153_power_cut_en(struct r8152 *tp, bool enable) 2753 { 2754 u32 ocp_data; 2755 2756 ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_POWER_CUT); 2757 if (enable) 2758 ocp_data |= PWR_EN | PHASE2_EN; 2759 else 2760 ocp_data &= ~(PWR_EN | PHASE2_EN); 2761 ocp_write_word(tp, MCU_TYPE_USB, USB_POWER_CUT, ocp_data); 2762 2763 ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_MISC_0); 2764 ocp_data &= ~PCUT_STATUS; 2765 ocp_write_word(tp, MCU_TYPE_USB, USB_MISC_0, ocp_data); 2766 } 2767 2768 static void r8153b_power_cut_en(struct r8152 *tp, bool enable) 2769 { 2770 u32 ocp_data; 2771 2772 ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_POWER_CUT); 2773 if (enable) 2774 ocp_data |= PWR_EN | PHASE2_EN; 2775 else 2776 ocp_data &= ~PWR_EN; 2777 ocp_write_word(tp, MCU_TYPE_USB, USB_POWER_CUT, ocp_data); 2778 2779 ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_MISC_0); 2780 ocp_data &= ~PCUT_STATUS; 2781 ocp_write_word(tp, MCU_TYPE_USB, USB_MISC_0, ocp_data); 2782 } 2783 2784 static void r8153b_queue_wake(struct r8152 *tp, bool enable) 2785 { 2786 u32 ocp_data; 2787 2788 ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, 0xd38a); 2789 if (enable) 2790 ocp_data |= BIT(0); 2791 else 2792 ocp_data &= ~BIT(0); 2793 ocp_write_byte(tp, MCU_TYPE_PLA, 0xd38a, ocp_data); 2794 2795 ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, 0xd38c); 2796 ocp_data &= ~BIT(0); 2797 ocp_write_byte(tp, MCU_TYPE_PLA, 0xd38c, ocp_data); 2798 } 2799 2800 static bool rtl_can_wakeup(struct r8152 *tp) 2801 { 2802 struct usb_device *udev = tp->udev; 2803 2804 return (udev->actconfig->desc.bmAttributes & USB_CONFIG_ATT_WAKEUP); 2805 } 2806 2807 static void rtl_runtime_suspend_enable(struct r8152 *tp, bool enable) 2808 { 2809 if (enable) { 2810 u32 ocp_data; 2811 2812 __rtl_set_wol(tp, WAKE_ANY); 2813 2814 ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CRWECR, CRWECR_CONFIG); 2815 2816 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_CONFIG34); 2817 ocp_data |= LINK_OFF_WAKE_EN; 2818 ocp_write_word(tp, MCU_TYPE_PLA, PLA_CONFIG34, ocp_data); 2819 2820 ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CRWECR, CRWECR_NORAML); 2821 } else { 2822 u32 ocp_data; 2823 2824 __rtl_set_wol(tp, tp->saved_wolopts); 2825 2826 ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CRWECR, CRWECR_CONFIG); 2827 2828 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_CONFIG34); 2829 ocp_data &= ~LINK_OFF_WAKE_EN; 2830 ocp_write_word(tp, MCU_TYPE_PLA, PLA_CONFIG34, ocp_data); 2831 2832 ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CRWECR, CRWECR_NORAML); 2833 } 2834 } 2835 2836 static void rtl8153_runtime_enable(struct r8152 *tp, bool enable) 2837 { 2838 if (enable) { 2839 r8153_u1u2en(tp, false); 2840 r8153_u2p3en(tp, false); 2841 r8153_mac_clk_spd(tp, true); 2842 rtl_runtime_suspend_enable(tp, true); 2843 } else { 2844 rtl_runtime_suspend_enable(tp, false); 2845 r8153_mac_clk_spd(tp, false); 2846 2847 switch (tp->version) { 2848 case RTL_VER_03: 2849 case RTL_VER_04: 2850 break; 2851 case RTL_VER_05: 2852 case RTL_VER_06: 2853 default: 2854 r8153_u2p3en(tp, true); 2855 break; 2856 } 2857 2858 r8153_u1u2en(tp, true); 2859 } 2860 } 2861 2862 static void rtl8153b_runtime_enable(struct r8152 *tp, bool enable) 2863 { 2864 if (enable) { 2865 r8153b_queue_wake(tp, true); 2866 r8153b_u1u2en(tp, false); 2867 r8153_u2p3en(tp, false); 2868 rtl_runtime_suspend_enable(tp, true); 2869 r8153b_ups_en(tp, true); 2870 } else { 2871 r8153b_ups_en(tp, false); 2872 r8153b_queue_wake(tp, false); 2873 rtl_runtime_suspend_enable(tp, false); 2874 r8153_u2p3en(tp, true); 2875 r8153b_u1u2en(tp, true); 2876 } 2877 } 2878 2879 static void r8153_teredo_off(struct r8152 *tp) 2880 { 2881 u32 ocp_data; 2882 2883 switch (tp->version) { 2884 case RTL_VER_01: 2885 case RTL_VER_02: 2886 case RTL_VER_03: 2887 case RTL_VER_04: 2888 case RTL_VER_05: 2889 case RTL_VER_06: 2890 case RTL_VER_07: 2891 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_TEREDO_CFG); 2892 ocp_data &= ~(TEREDO_SEL | TEREDO_RS_EVENT_MASK | 2893 OOB_TEREDO_EN); 2894 ocp_write_word(tp, MCU_TYPE_PLA, PLA_TEREDO_CFG, ocp_data); 2895 break; 2896 2897 case RTL_VER_08: 2898 case RTL_VER_09: 2899 /* The bit 0 ~ 7 are relative with teredo settings. They are 2900 * W1C (write 1 to clear), so set all 1 to disable it. 2901 */ 2902 ocp_write_byte(tp, MCU_TYPE_PLA, PLA_TEREDO_CFG, 0xff); 2903 break; 2904 2905 default: 2906 break; 2907 } 2908 2909 ocp_write_word(tp, MCU_TYPE_PLA, PLA_WDT6_CTRL, WDT6_SET_MODE); 2910 ocp_write_word(tp, MCU_TYPE_PLA, PLA_REALWOW_TIMER, 0); 2911 ocp_write_dword(tp, MCU_TYPE_PLA, PLA_TEREDO_TIMER, 0); 2912 } 2913 2914 static void rtl_reset_bmu(struct r8152 *tp) 2915 { 2916 u32 ocp_data; 2917 2918 ocp_data = ocp_read_byte(tp, MCU_TYPE_USB, USB_BMU_RESET); 2919 ocp_data &= ~(BMU_RESET_EP_IN | BMU_RESET_EP_OUT); 2920 ocp_write_byte(tp, MCU_TYPE_USB, USB_BMU_RESET, ocp_data); 2921 ocp_data |= BMU_RESET_EP_IN | BMU_RESET_EP_OUT; 2922 ocp_write_byte(tp, MCU_TYPE_USB, USB_BMU_RESET, ocp_data); 2923 } 2924 2925 static void r8152_aldps_en(struct r8152 *tp, bool enable) 2926 { 2927 if (enable) { 2928 ocp_reg_write(tp, OCP_ALDPS_CONFIG, ENPWRSAVE | ENPDNPS | 2929 LINKENA | DIS_SDSAVE); 2930 } else { 2931 ocp_reg_write(tp, OCP_ALDPS_CONFIG, ENPDNPS | LINKENA | 2932 DIS_SDSAVE); 2933 msleep(20); 2934 } 2935 } 2936 2937 static inline void r8152_mmd_indirect(struct r8152 *tp, u16 dev, u16 reg) 2938 { 2939 ocp_reg_write(tp, OCP_EEE_AR, FUN_ADDR | dev); 2940 ocp_reg_write(tp, OCP_EEE_DATA, reg); 2941 ocp_reg_write(tp, OCP_EEE_AR, FUN_DATA | dev); 2942 } 2943 2944 static u16 r8152_mmd_read(struct r8152 *tp, u16 dev, u16 reg) 2945 { 2946 u16 data; 2947 2948 r8152_mmd_indirect(tp, dev, reg); 2949 data = ocp_reg_read(tp, OCP_EEE_DATA); 2950 ocp_reg_write(tp, OCP_EEE_AR, 0x0000); 2951 2952 return data; 2953 } 2954 2955 static void r8152_mmd_write(struct r8152 *tp, u16 dev, u16 reg, u16 data) 2956 { 2957 r8152_mmd_indirect(tp, dev, reg); 2958 ocp_reg_write(tp, OCP_EEE_DATA, data); 2959 ocp_reg_write(tp, OCP_EEE_AR, 0x0000); 2960 } 2961 2962 static void r8152_eee_en(struct r8152 *tp, bool enable) 2963 { 2964 u16 config1, config2, config3; 2965 u32 ocp_data; 2966 2967 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_EEE_CR); 2968 config1 = ocp_reg_read(tp, OCP_EEE_CONFIG1) & ~sd_rise_time_mask; 2969 config2 = ocp_reg_read(tp, OCP_EEE_CONFIG2); 2970 config3 = ocp_reg_read(tp, OCP_EEE_CONFIG3) & ~fast_snr_mask; 2971 2972 if (enable) { 2973 ocp_data |= EEE_RX_EN | EEE_TX_EN; 2974 config1 |= EEE_10_CAP | EEE_NWAY_EN | TX_QUIET_EN | RX_QUIET_EN; 2975 config1 |= sd_rise_time(1); 2976 config2 |= RG_DACQUIET_EN | RG_LDVQUIET_EN; 2977 config3 |= fast_snr(42); 2978 } else { 2979 ocp_data &= ~(EEE_RX_EN | EEE_TX_EN); 2980 config1 &= ~(EEE_10_CAP | EEE_NWAY_EN | TX_QUIET_EN | 2981 RX_QUIET_EN); 2982 config1 |= sd_rise_time(7); 2983 config2 &= ~(RG_DACQUIET_EN | RG_LDVQUIET_EN); 2984 config3 |= fast_snr(511); 2985 } 2986 2987 ocp_write_word(tp, MCU_TYPE_PLA, PLA_EEE_CR, ocp_data); 2988 ocp_reg_write(tp, OCP_EEE_CONFIG1, config1); 2989 ocp_reg_write(tp, OCP_EEE_CONFIG2, config2); 2990 ocp_reg_write(tp, OCP_EEE_CONFIG3, config3); 2991 } 2992 2993 static void r8152b_enable_eee(struct r8152 *tp) 2994 { 2995 r8152_eee_en(tp, true); 2996 r8152_mmd_write(tp, MDIO_MMD_AN, MDIO_AN_EEE_ADV, MDIO_EEE_100TX); 2997 } 2998 2999 static void r8152b_enable_fc(struct r8152 *tp) 3000 { 3001 u16 anar; 3002 3003 anar = r8152_mdio_read(tp, MII_ADVERTISE); 3004 anar |= ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM; 3005 r8152_mdio_write(tp, MII_ADVERTISE, anar); 3006 } 3007 3008 static void rtl8152_disable(struct r8152 *tp) 3009 { 3010 r8152_aldps_en(tp, false); 3011 rtl_disable(tp); 3012 r8152_aldps_en(tp, true); 3013 } 3014 3015 static void r8152b_hw_phy_cfg(struct r8152 *tp) 3016 { 3017 r8152b_enable_eee(tp); 3018 r8152_aldps_en(tp, true); 3019 r8152b_enable_fc(tp); 3020 3021 set_bit(PHY_RESET, &tp->flags); 3022 } 3023 3024 static void r8152b_exit_oob(struct r8152 *tp) 3025 { 3026 u32 ocp_data; 3027 int i; 3028 3029 ocp_data = ocp_read_dword(tp, MCU_TYPE_PLA, PLA_RCR); 3030 ocp_data &= ~RCR_ACPT_ALL; 3031 ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RCR, ocp_data); 3032 3033 rxdy_gated_en(tp, true); 3034 r8153_teredo_off(tp); 3035 ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CRWECR, CRWECR_NORAML); 3036 ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CR, 0x00); 3037 3038 ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL); 3039 ocp_data &= ~NOW_IS_OOB; 3040 ocp_write_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL, ocp_data); 3041 3042 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7); 3043 ocp_data &= ~MCU_BORW_EN; 3044 ocp_write_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7, ocp_data); 3045 3046 for (i = 0; i < 1000; i++) { 3047 ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL); 3048 if (ocp_data & LINK_LIST_READY) 3049 break; 3050 usleep_range(1000, 2000); 3051 } 3052 3053 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7); 3054 ocp_data |= RE_INIT_LL; 3055 ocp_write_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7, ocp_data); 3056 3057 for (i = 0; i < 1000; i++) { 3058 ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL); 3059 if (ocp_data & LINK_LIST_READY) 3060 break; 3061 usleep_range(1000, 2000); 3062 } 3063 3064 rtl8152_nic_reset(tp); 3065 3066 /* rx share fifo credit full threshold */ 3067 ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL0, RXFIFO_THR1_NORMAL); 3068 3069 if (tp->udev->speed == USB_SPEED_FULL || 3070 tp->udev->speed == USB_SPEED_LOW) { 3071 /* rx share fifo credit near full threshold */ 3072 ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL1, 3073 RXFIFO_THR2_FULL); 3074 ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL2, 3075 RXFIFO_THR3_FULL); 3076 } else { 3077 /* rx share fifo credit near full threshold */ 3078 ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL1, 3079 RXFIFO_THR2_HIGH); 3080 ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL2, 3081 RXFIFO_THR3_HIGH); 3082 } 3083 3084 /* TX share fifo free credit full threshold */ 3085 ocp_write_dword(tp, MCU_TYPE_PLA, PLA_TXFIFO_CTRL, TXFIFO_THR_NORMAL); 3086 3087 ocp_write_byte(tp, MCU_TYPE_USB, USB_TX_AGG, TX_AGG_MAX_THRESHOLD); 3088 ocp_write_dword(tp, MCU_TYPE_USB, USB_RX_BUF_TH, RX_THR_HIGH); 3089 ocp_write_dword(tp, MCU_TYPE_USB, USB_TX_DMA, 3090 TEST_MODE_DISABLE | TX_SIZE_ADJUST1); 3091 3092 rtl_rx_vlan_en(tp, tp->netdev->features & NETIF_F_HW_VLAN_CTAG_RX); 3093 3094 ocp_write_word(tp, MCU_TYPE_PLA, PLA_RMS, RTL8152_RMS); 3095 3096 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_TCR0); 3097 ocp_data |= TCR0_AUTO_FIFO; 3098 ocp_write_word(tp, MCU_TYPE_PLA, PLA_TCR0, ocp_data); 3099 } 3100 3101 static void r8152b_enter_oob(struct r8152 *tp) 3102 { 3103 u32 ocp_data; 3104 int i; 3105 3106 ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL); 3107 ocp_data &= ~NOW_IS_OOB; 3108 ocp_write_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL, ocp_data); 3109 3110 ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL0, RXFIFO_THR1_OOB); 3111 ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL1, RXFIFO_THR2_OOB); 3112 ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL2, RXFIFO_THR3_OOB); 3113 3114 rtl_disable(tp); 3115 3116 for (i = 0; i < 1000; i++) { 3117 ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL); 3118 if (ocp_data & LINK_LIST_READY) 3119 break; 3120 usleep_range(1000, 2000); 3121 } 3122 3123 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7); 3124 ocp_data |= RE_INIT_LL; 3125 ocp_write_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7, ocp_data); 3126 3127 for (i = 0; i < 1000; i++) { 3128 ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL); 3129 if (ocp_data & LINK_LIST_READY) 3130 break; 3131 usleep_range(1000, 2000); 3132 } 3133 3134 ocp_write_word(tp, MCU_TYPE_PLA, PLA_RMS, RTL8152_RMS); 3135 3136 rtl_rx_vlan_en(tp, true); 3137 3138 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PAL_BDC_CR); 3139 ocp_data |= ALDPS_PROXY_MODE; 3140 ocp_write_word(tp, MCU_TYPE_PLA, PAL_BDC_CR, ocp_data); 3141 3142 ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL); 3143 ocp_data |= NOW_IS_OOB | DIS_MCU_CLROOB; 3144 ocp_write_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL, ocp_data); 3145 3146 rxdy_gated_en(tp, false); 3147 3148 ocp_data = ocp_read_dword(tp, MCU_TYPE_PLA, PLA_RCR); 3149 ocp_data |= RCR_APM | RCR_AM | RCR_AB; 3150 ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RCR, ocp_data); 3151 } 3152 3153 static int r8153_patch_request(struct r8152 *tp, bool request) 3154 { 3155 u16 data; 3156 int i; 3157 3158 data = ocp_reg_read(tp, OCP_PHY_PATCH_CMD); 3159 if (request) 3160 data |= PATCH_REQUEST; 3161 else 3162 data &= ~PATCH_REQUEST; 3163 ocp_reg_write(tp, OCP_PHY_PATCH_CMD, data); 3164 3165 for (i = 0; request && i < 5000; i++) { 3166 usleep_range(1000, 2000); 3167 if (ocp_reg_read(tp, OCP_PHY_PATCH_STAT) & PATCH_READY) 3168 break; 3169 } 3170 3171 if (request && !(ocp_reg_read(tp, OCP_PHY_PATCH_STAT) & PATCH_READY)) { 3172 netif_err(tp, drv, tp->netdev, "patch request fail\n"); 3173 r8153_patch_request(tp, false); 3174 return -ETIME; 3175 } else { 3176 return 0; 3177 } 3178 } 3179 3180 static void r8153_aldps_en(struct r8152 *tp, bool enable) 3181 { 3182 u16 data; 3183 3184 data = ocp_reg_read(tp, OCP_POWER_CFG); 3185 if (enable) { 3186 data |= EN_ALDPS; 3187 ocp_reg_write(tp, OCP_POWER_CFG, data); 3188 } else { 3189 int i; 3190 3191 data &= ~EN_ALDPS; 3192 ocp_reg_write(tp, OCP_POWER_CFG, data); 3193 for (i = 0; i < 20; i++) { 3194 usleep_range(1000, 2000); 3195 if (ocp_read_word(tp, MCU_TYPE_PLA, 0xe000) & 0x0100) 3196 break; 3197 } 3198 } 3199 } 3200 3201 static void r8153b_aldps_en(struct r8152 *tp, bool enable) 3202 { 3203 r8153_aldps_en(tp, enable); 3204 3205 if (enable) 3206 r8153b_ups_flags_w1w0(tp, UPS_FLAGS_EN_ALDPS, 0); 3207 else 3208 r8153b_ups_flags_w1w0(tp, 0, UPS_FLAGS_EN_ALDPS); 3209 } 3210 3211 static void r8153_eee_en(struct r8152 *tp, bool enable) 3212 { 3213 u32 ocp_data; 3214 u16 config; 3215 3216 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_EEE_CR); 3217 config = ocp_reg_read(tp, OCP_EEE_CFG); 3218 3219 if (enable) { 3220 ocp_data |= EEE_RX_EN | EEE_TX_EN; 3221 config |= EEE10_EN; 3222 } else { 3223 ocp_data &= ~(EEE_RX_EN | EEE_TX_EN); 3224 config &= ~EEE10_EN; 3225 } 3226 3227 ocp_write_word(tp, MCU_TYPE_PLA, PLA_EEE_CR, ocp_data); 3228 ocp_reg_write(tp, OCP_EEE_CFG, config); 3229 } 3230 3231 static void r8153b_eee_en(struct r8152 *tp, bool enable) 3232 { 3233 r8153_eee_en(tp, enable); 3234 3235 if (enable) 3236 r8153b_ups_flags_w1w0(tp, UPS_FLAGS_EN_EEE, 0); 3237 else 3238 r8153b_ups_flags_w1w0(tp, 0, UPS_FLAGS_EN_EEE); 3239 } 3240 3241 static void r8153b_enable_fc(struct r8152 *tp) 3242 { 3243 r8152b_enable_fc(tp); 3244 r8153b_ups_flags_w1w0(tp, UPS_FLAGS_EN_FLOW_CTR, 0); 3245 } 3246 3247 static void r8153_hw_phy_cfg(struct r8152 *tp) 3248 { 3249 u32 ocp_data; 3250 u16 data; 3251 3252 /* disable ALDPS before updating the PHY parameters */ 3253 r8153_aldps_en(tp, false); 3254 3255 /* disable EEE before updating the PHY parameters */ 3256 r8153_eee_en(tp, false); 3257 ocp_reg_write(tp, OCP_EEE_ADV, 0); 3258 3259 if (tp->version == RTL_VER_03) { 3260 data = ocp_reg_read(tp, OCP_EEE_CFG); 3261 data &= ~CTAP_SHORT_EN; 3262 ocp_reg_write(tp, OCP_EEE_CFG, data); 3263 } 3264 3265 data = ocp_reg_read(tp, OCP_POWER_CFG); 3266 data |= EEE_CLKDIV_EN; 3267 ocp_reg_write(tp, OCP_POWER_CFG, data); 3268 3269 data = ocp_reg_read(tp, OCP_DOWN_SPEED); 3270 data |= EN_10M_BGOFF; 3271 ocp_reg_write(tp, OCP_DOWN_SPEED, data); 3272 data = ocp_reg_read(tp, OCP_POWER_CFG); 3273 data |= EN_10M_PLLOFF; 3274 ocp_reg_write(tp, OCP_POWER_CFG, data); 3275 sram_write(tp, SRAM_IMPEDANCE, 0x0b13); 3276 3277 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_PHY_PWR); 3278 ocp_data |= PFM_PWM_SWITCH; 3279 ocp_write_word(tp, MCU_TYPE_PLA, PLA_PHY_PWR, ocp_data); 3280 3281 /* Enable LPF corner auto tune */ 3282 sram_write(tp, SRAM_LPF_CFG, 0xf70f); 3283 3284 /* Adjust 10M Amplitude */ 3285 sram_write(tp, SRAM_10M_AMP1, 0x00af); 3286 sram_write(tp, SRAM_10M_AMP2, 0x0208); 3287 3288 r8153_eee_en(tp, true); 3289 ocp_reg_write(tp, OCP_EEE_ADV, MDIO_EEE_1000T | MDIO_EEE_100TX); 3290 3291 r8153_aldps_en(tp, true); 3292 r8152b_enable_fc(tp); 3293 3294 switch (tp->version) { 3295 case RTL_VER_03: 3296 case RTL_VER_04: 3297 break; 3298 case RTL_VER_05: 3299 case RTL_VER_06: 3300 default: 3301 r8153_u2p3en(tp, true); 3302 break; 3303 } 3304 3305 set_bit(PHY_RESET, &tp->flags); 3306 } 3307 3308 static u32 r8152_efuse_read(struct r8152 *tp, u8 addr) 3309 { 3310 u32 ocp_data; 3311 3312 ocp_write_word(tp, MCU_TYPE_PLA, PLA_EFUSE_CMD, EFUSE_READ_CMD | addr); 3313 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_EFUSE_CMD); 3314 ocp_data = (ocp_data & EFUSE_DATA_BIT16) << 9; /* data of bit16 */ 3315 ocp_data |= ocp_read_word(tp, MCU_TYPE_PLA, PLA_EFUSE_DATA); 3316 3317 return ocp_data; 3318 } 3319 3320 static void r8153b_hw_phy_cfg(struct r8152 *tp) 3321 { 3322 u32 ocp_data, ups_flags = 0; 3323 u16 data; 3324 3325 /* disable ALDPS before updating the PHY parameters */ 3326 r8153b_aldps_en(tp, false); 3327 3328 /* disable EEE before updating the PHY parameters */ 3329 r8153b_eee_en(tp, false); 3330 ocp_reg_write(tp, OCP_EEE_ADV, 0); 3331 3332 r8153b_green_en(tp, test_bit(GREEN_ETHERNET, &tp->flags)); 3333 3334 data = sram_read(tp, SRAM_GREEN_CFG); 3335 data |= R_TUNE_EN; 3336 sram_write(tp, SRAM_GREEN_CFG, data); 3337 data = ocp_reg_read(tp, OCP_NCTL_CFG); 3338 data |= PGA_RETURN_EN; 3339 ocp_reg_write(tp, OCP_NCTL_CFG, data); 3340 3341 /* ADC Bias Calibration: 3342 * read efuse offset 0x7d to get a 17-bit data. Remove the dummy/fake 3343 * bit (bit3) to rebuild the real 16-bit data. Write the data to the 3344 * ADC ioffset. 3345 */ 3346 ocp_data = r8152_efuse_read(tp, 0x7d); 3347 data = (u16)(((ocp_data & 0x1fff0) >> 1) | (ocp_data & 0x7)); 3348 if (data != 0xffff) 3349 ocp_reg_write(tp, OCP_ADC_IOFFSET, data); 3350 3351 /* ups mode tx-link-pulse timing adjustment: 3352 * rg_saw_cnt = OCP reg 0xC426 Bit[13:0] 3353 * swr_cnt_1ms_ini = 16000000 / rg_saw_cnt 3354 */ 3355 ocp_data = ocp_reg_read(tp, 0xc426); 3356 ocp_data &= 0x3fff; 3357 if (ocp_data) { 3358 u32 swr_cnt_1ms_ini; 3359 3360 swr_cnt_1ms_ini = (16000000 / ocp_data) & SAW_CNT_1MS_MASK; 3361 ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_UPS_CFG); 3362 ocp_data = (ocp_data & ~SAW_CNT_1MS_MASK) | swr_cnt_1ms_ini; 3363 ocp_write_word(tp, MCU_TYPE_USB, USB_UPS_CFG, ocp_data); 3364 } 3365 3366 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_PHY_PWR); 3367 ocp_data |= PFM_PWM_SWITCH; 3368 ocp_write_word(tp, MCU_TYPE_PLA, PLA_PHY_PWR, ocp_data); 3369 3370 /* Advnace EEE */ 3371 if (!r8153_patch_request(tp, true)) { 3372 data = ocp_reg_read(tp, OCP_POWER_CFG); 3373 data |= EEE_CLKDIV_EN; 3374 ocp_reg_write(tp, OCP_POWER_CFG, data); 3375 3376 data = ocp_reg_read(tp, OCP_DOWN_SPEED); 3377 data |= EN_EEE_CMODE | EN_EEE_1000 | EN_10M_CLKDIV; 3378 ocp_reg_write(tp, OCP_DOWN_SPEED, data); 3379 3380 ocp_reg_write(tp, OCP_SYSCLK_CFG, 0); 3381 ocp_reg_write(tp, OCP_SYSCLK_CFG, clk_div_expo(5)); 3382 3383 ups_flags |= UPS_FLAGS_EN_10M_CKDIV | UPS_FLAGS_250M_CKDIV | 3384 UPS_FLAGS_EN_EEE_CKDIV | UPS_FLAGS_EEE_CMOD_LV_EN | 3385 UPS_FLAGS_EEE_PLLOFF_GIGA; 3386 3387 r8153_patch_request(tp, false); 3388 } 3389 3390 r8153b_ups_flags_w1w0(tp, ups_flags, 0); 3391 3392 r8153b_eee_en(tp, true); 3393 ocp_reg_write(tp, OCP_EEE_ADV, MDIO_EEE_1000T | MDIO_EEE_100TX); 3394 3395 r8153b_aldps_en(tp, true); 3396 r8153b_enable_fc(tp); 3397 r8153_u2p3en(tp, true); 3398 3399 set_bit(PHY_RESET, &tp->flags); 3400 } 3401 3402 static void r8153_first_init(struct r8152 *tp) 3403 { 3404 u32 ocp_data; 3405 int i; 3406 3407 r8153_mac_clk_spd(tp, false); 3408 rxdy_gated_en(tp, true); 3409 r8153_teredo_off(tp); 3410 3411 ocp_data = ocp_read_dword(tp, MCU_TYPE_PLA, PLA_RCR); 3412 ocp_data &= ~RCR_ACPT_ALL; 3413 ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RCR, ocp_data); 3414 3415 rtl8152_nic_reset(tp); 3416 rtl_reset_bmu(tp); 3417 3418 ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL); 3419 ocp_data &= ~NOW_IS_OOB; 3420 ocp_write_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL, ocp_data); 3421 3422 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7); 3423 ocp_data &= ~MCU_BORW_EN; 3424 ocp_write_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7, ocp_data); 3425 3426 for (i = 0; i < 1000; i++) { 3427 ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL); 3428 if (ocp_data & LINK_LIST_READY) 3429 break; 3430 usleep_range(1000, 2000); 3431 } 3432 3433 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7); 3434 ocp_data |= RE_INIT_LL; 3435 ocp_write_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7, ocp_data); 3436 3437 for (i = 0; i < 1000; i++) { 3438 ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL); 3439 if (ocp_data & LINK_LIST_READY) 3440 break; 3441 usleep_range(1000, 2000); 3442 } 3443 3444 rtl_rx_vlan_en(tp, tp->netdev->features & NETIF_F_HW_VLAN_CTAG_RX); 3445 3446 ocp_data = tp->netdev->mtu + VLAN_ETH_HLEN + ETH_FCS_LEN; 3447 ocp_write_word(tp, MCU_TYPE_PLA, PLA_RMS, ocp_data); 3448 ocp_write_byte(tp, MCU_TYPE_PLA, PLA_MTPS, MTPS_JUMBO); 3449 3450 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_TCR0); 3451 ocp_data |= TCR0_AUTO_FIFO; 3452 ocp_write_word(tp, MCU_TYPE_PLA, PLA_TCR0, ocp_data); 3453 3454 rtl8152_nic_reset(tp); 3455 3456 /* rx share fifo credit full threshold */ 3457 ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL0, RXFIFO_THR1_NORMAL); 3458 ocp_write_word(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL1, RXFIFO_THR2_NORMAL); 3459 ocp_write_word(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL2, RXFIFO_THR3_NORMAL); 3460 /* TX share fifo free credit full threshold */ 3461 ocp_write_dword(tp, MCU_TYPE_PLA, PLA_TXFIFO_CTRL, TXFIFO_THR_NORMAL2); 3462 } 3463 3464 static void r8153_enter_oob(struct r8152 *tp) 3465 { 3466 u32 ocp_data; 3467 int i; 3468 3469 r8153_mac_clk_spd(tp, true); 3470 3471 ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL); 3472 ocp_data &= ~NOW_IS_OOB; 3473 ocp_write_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL, ocp_data); 3474 3475 rtl_disable(tp); 3476 rtl_reset_bmu(tp); 3477 3478 for (i = 0; i < 1000; i++) { 3479 ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL); 3480 if (ocp_data & LINK_LIST_READY) 3481 break; 3482 usleep_range(1000, 2000); 3483 } 3484 3485 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7); 3486 ocp_data |= RE_INIT_LL; 3487 ocp_write_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7, ocp_data); 3488 3489 for (i = 0; i < 1000; i++) { 3490 ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL); 3491 if (ocp_data & LINK_LIST_READY) 3492 break; 3493 usleep_range(1000, 2000); 3494 } 3495 3496 ocp_data = tp->netdev->mtu + VLAN_ETH_HLEN + ETH_FCS_LEN; 3497 ocp_write_word(tp, MCU_TYPE_PLA, PLA_RMS, ocp_data); 3498 3499 switch (tp->version) { 3500 case RTL_VER_03: 3501 case RTL_VER_04: 3502 case RTL_VER_05: 3503 case RTL_VER_06: 3504 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_TEREDO_CFG); 3505 ocp_data &= ~TEREDO_WAKE_MASK; 3506 ocp_write_word(tp, MCU_TYPE_PLA, PLA_TEREDO_CFG, ocp_data); 3507 break; 3508 3509 case RTL_VER_08: 3510 case RTL_VER_09: 3511 /* Clear teredo wake event. bit[15:8] is the teredo wakeup 3512 * type. Set it to zero. bits[7:0] are the W1C bits about 3513 * the events. Set them to all 1 to clear them. 3514 */ 3515 ocp_write_word(tp, MCU_TYPE_PLA, PLA_TEREDO_WAKE_BASE, 0x00ff); 3516 break; 3517 3518 default: 3519 break; 3520 } 3521 3522 rtl_rx_vlan_en(tp, true); 3523 3524 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PAL_BDC_CR); 3525 ocp_data |= ALDPS_PROXY_MODE; 3526 ocp_write_word(tp, MCU_TYPE_PLA, PAL_BDC_CR, ocp_data); 3527 3528 ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL); 3529 ocp_data |= NOW_IS_OOB | DIS_MCU_CLROOB; 3530 ocp_write_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL, ocp_data); 3531 3532 rxdy_gated_en(tp, false); 3533 3534 ocp_data = ocp_read_dword(tp, MCU_TYPE_PLA, PLA_RCR); 3535 ocp_data |= RCR_APM | RCR_AM | RCR_AB; 3536 ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RCR, ocp_data); 3537 } 3538 3539 static void rtl8153_disable(struct r8152 *tp) 3540 { 3541 r8153_aldps_en(tp, false); 3542 rtl_disable(tp); 3543 rtl_reset_bmu(tp); 3544 r8153_aldps_en(tp, true); 3545 } 3546 3547 static void rtl8153b_disable(struct r8152 *tp) 3548 { 3549 r8153b_aldps_en(tp, false); 3550 rtl_disable(tp); 3551 rtl_reset_bmu(tp); 3552 r8153b_aldps_en(tp, true); 3553 } 3554 3555 static int rtl8152_set_speed(struct r8152 *tp, u8 autoneg, u16 speed, u8 duplex) 3556 { 3557 u16 bmcr, anar, gbcr; 3558 enum spd_duplex speed_duplex; 3559 int ret = 0; 3560 3561 anar = r8152_mdio_read(tp, MII_ADVERTISE); 3562 anar &= ~(ADVERTISE_10HALF | ADVERTISE_10FULL | 3563 ADVERTISE_100HALF | ADVERTISE_100FULL); 3564 if (tp->mii.supports_gmii) { 3565 gbcr = r8152_mdio_read(tp, MII_CTRL1000); 3566 gbcr &= ~(ADVERTISE_1000FULL | ADVERTISE_1000HALF); 3567 } else { 3568 gbcr = 0; 3569 } 3570 3571 if (autoneg == AUTONEG_DISABLE) { 3572 if (speed == SPEED_10) { 3573 bmcr = 0; 3574 anar |= ADVERTISE_10HALF | ADVERTISE_10FULL; 3575 speed_duplex = FORCE_10M_HALF; 3576 } else if (speed == SPEED_100) { 3577 bmcr = BMCR_SPEED100; 3578 anar |= ADVERTISE_100HALF | ADVERTISE_100FULL; 3579 speed_duplex = FORCE_100M_HALF; 3580 } else if (speed == SPEED_1000 && tp->mii.supports_gmii) { 3581 bmcr = BMCR_SPEED1000; 3582 gbcr |= ADVERTISE_1000FULL | ADVERTISE_1000HALF; 3583 speed_duplex = NWAY_1000M_FULL; 3584 } else { 3585 ret = -EINVAL; 3586 goto out; 3587 } 3588 3589 if (duplex == DUPLEX_FULL) { 3590 bmcr |= BMCR_FULLDPLX; 3591 if (speed != SPEED_1000) 3592 speed_duplex++; 3593 } 3594 } else { 3595 if (speed == SPEED_10) { 3596 if (duplex == DUPLEX_FULL) { 3597 anar |= ADVERTISE_10HALF | ADVERTISE_10FULL; 3598 speed_duplex = NWAY_10M_FULL; 3599 } else { 3600 anar |= ADVERTISE_10HALF; 3601 speed_duplex = NWAY_10M_HALF; 3602 } 3603 } else if (speed == SPEED_100) { 3604 if (duplex == DUPLEX_FULL) { 3605 anar |= ADVERTISE_10HALF | ADVERTISE_10FULL; 3606 anar |= ADVERTISE_100HALF | ADVERTISE_100FULL; 3607 speed_duplex = NWAY_100M_FULL; 3608 } else { 3609 anar |= ADVERTISE_10HALF; 3610 anar |= ADVERTISE_100HALF; 3611 speed_duplex = NWAY_100M_HALF; 3612 } 3613 } else if (speed == SPEED_1000 && tp->mii.supports_gmii) { 3614 if (duplex == DUPLEX_FULL) { 3615 anar |= ADVERTISE_10HALF | ADVERTISE_10FULL; 3616 anar |= ADVERTISE_100HALF | ADVERTISE_100FULL; 3617 gbcr |= ADVERTISE_1000FULL | ADVERTISE_1000HALF; 3618 } else { 3619 anar |= ADVERTISE_10HALF; 3620 anar |= ADVERTISE_100HALF; 3621 gbcr |= ADVERTISE_1000HALF; 3622 } 3623 speed_duplex = NWAY_1000M_FULL; 3624 } else { 3625 ret = -EINVAL; 3626 goto out; 3627 } 3628 3629 bmcr = BMCR_ANENABLE | BMCR_ANRESTART; 3630 } 3631 3632 if (test_and_clear_bit(PHY_RESET, &tp->flags)) 3633 bmcr |= BMCR_RESET; 3634 3635 if (tp->mii.supports_gmii) 3636 r8152_mdio_write(tp, MII_CTRL1000, gbcr); 3637 3638 r8152_mdio_write(tp, MII_ADVERTISE, anar); 3639 r8152_mdio_write(tp, MII_BMCR, bmcr); 3640 3641 switch (tp->version) { 3642 case RTL_VER_08: 3643 case RTL_VER_09: 3644 r8153b_ups_flags_w1w0(tp, ups_flags_speed(speed_duplex), 3645 UPS_FLAGS_SPEED_MASK); 3646 break; 3647 3648 default: 3649 break; 3650 } 3651 3652 if (bmcr & BMCR_RESET) { 3653 int i; 3654 3655 for (i = 0; i < 50; i++) { 3656 msleep(20); 3657 if ((r8152_mdio_read(tp, MII_BMCR) & BMCR_RESET) == 0) 3658 break; 3659 } 3660 } 3661 3662 out: 3663 return ret; 3664 } 3665 3666 static void rtl8152_up(struct r8152 *tp) 3667 { 3668 if (test_bit(RTL8152_UNPLUG, &tp->flags)) 3669 return; 3670 3671 r8152_aldps_en(tp, false); 3672 r8152b_exit_oob(tp); 3673 r8152_aldps_en(tp, true); 3674 } 3675 3676 static void rtl8152_down(struct r8152 *tp) 3677 { 3678 if (test_bit(RTL8152_UNPLUG, &tp->flags)) { 3679 rtl_drop_queued_tx(tp); 3680 return; 3681 } 3682 3683 r8152_power_cut_en(tp, false); 3684 r8152_aldps_en(tp, false); 3685 r8152b_enter_oob(tp); 3686 r8152_aldps_en(tp, true); 3687 } 3688 3689 static void rtl8153_up(struct r8152 *tp) 3690 { 3691 if (test_bit(RTL8152_UNPLUG, &tp->flags)) 3692 return; 3693 3694 r8153_u1u2en(tp, false); 3695 r8153_u2p3en(tp, false); 3696 r8153_aldps_en(tp, false); 3697 r8153_first_init(tp); 3698 r8153_aldps_en(tp, true); 3699 3700 switch (tp->version) { 3701 case RTL_VER_03: 3702 case RTL_VER_04: 3703 break; 3704 case RTL_VER_05: 3705 case RTL_VER_06: 3706 default: 3707 r8153_u2p3en(tp, true); 3708 break; 3709 } 3710 3711 r8153_u1u2en(tp, true); 3712 } 3713 3714 static void rtl8153_down(struct r8152 *tp) 3715 { 3716 if (test_bit(RTL8152_UNPLUG, &tp->flags)) { 3717 rtl_drop_queued_tx(tp); 3718 return; 3719 } 3720 3721 r8153_u1u2en(tp, false); 3722 r8153_u2p3en(tp, false); 3723 r8153_power_cut_en(tp, false); 3724 r8153_aldps_en(tp, false); 3725 r8153_enter_oob(tp); 3726 r8153_aldps_en(tp, true); 3727 } 3728 3729 static void rtl8153b_up(struct r8152 *tp) 3730 { 3731 if (test_bit(RTL8152_UNPLUG, &tp->flags)) 3732 return; 3733 3734 r8153b_u1u2en(tp, false); 3735 r8153_u2p3en(tp, false); 3736 r8153b_aldps_en(tp, false); 3737 3738 r8153_first_init(tp); 3739 ocp_write_dword(tp, MCU_TYPE_USB, USB_RX_BUF_TH, RX_THR_B); 3740 3741 r8153b_aldps_en(tp, true); 3742 r8153_u2p3en(tp, true); 3743 r8153b_u1u2en(tp, true); 3744 } 3745 3746 static void rtl8153b_down(struct r8152 *tp) 3747 { 3748 if (test_bit(RTL8152_UNPLUG, &tp->flags)) { 3749 rtl_drop_queued_tx(tp); 3750 return; 3751 } 3752 3753 r8153b_u1u2en(tp, false); 3754 r8153_u2p3en(tp, false); 3755 r8153b_power_cut_en(tp, false); 3756 r8153b_aldps_en(tp, false); 3757 r8153_enter_oob(tp); 3758 r8153b_aldps_en(tp, true); 3759 } 3760 3761 static bool rtl8152_in_nway(struct r8152 *tp) 3762 { 3763 u16 nway_state; 3764 3765 ocp_write_word(tp, MCU_TYPE_PLA, PLA_OCP_GPHY_BASE, 0x2000); 3766 tp->ocp_base = 0x2000; 3767 ocp_write_byte(tp, MCU_TYPE_PLA, 0xb014, 0x4c); /* phy state */ 3768 nway_state = ocp_read_word(tp, MCU_TYPE_PLA, 0xb01a); 3769 3770 /* bit 15: TXDIS_STATE, bit 14: ABD_STATE */ 3771 if (nway_state & 0xc000) 3772 return false; 3773 else 3774 return true; 3775 } 3776 3777 static bool rtl8153_in_nway(struct r8152 *tp) 3778 { 3779 u16 phy_state = ocp_reg_read(tp, OCP_PHY_STATE) & 0xff; 3780 3781 if (phy_state == TXDIS_STATE || phy_state == ABD_STATE) 3782 return false; 3783 else 3784 return true; 3785 } 3786 3787 static void set_carrier(struct r8152 *tp) 3788 { 3789 struct net_device *netdev = tp->netdev; 3790 struct napi_struct *napi = &tp->napi; 3791 u8 speed; 3792 3793 speed = rtl8152_get_speed(tp); 3794 3795 if (speed & LINK_STATUS) { 3796 if (!netif_carrier_ok(netdev)) { 3797 tp->rtl_ops.enable(tp); 3798 netif_stop_queue(netdev); 3799 napi_disable(napi); 3800 netif_carrier_on(netdev); 3801 rtl_start_rx(tp); 3802 clear_bit(RTL8152_SET_RX_MODE, &tp->flags); 3803 _rtl8152_set_rx_mode(netdev); 3804 napi_enable(&tp->napi); 3805 netif_wake_queue(netdev); 3806 netif_info(tp, link, netdev, "carrier on\n"); 3807 } else if (netif_queue_stopped(netdev) && 3808 skb_queue_len(&tp->tx_queue) < tp->tx_qlen) { 3809 netif_wake_queue(netdev); 3810 } 3811 } else { 3812 if (netif_carrier_ok(netdev)) { 3813 netif_carrier_off(netdev); 3814 napi_disable(napi); 3815 tp->rtl_ops.disable(tp); 3816 napi_enable(napi); 3817 netif_info(tp, link, netdev, "carrier off\n"); 3818 } 3819 } 3820 } 3821 3822 static void rtl_work_func_t(struct work_struct *work) 3823 { 3824 struct r8152 *tp = container_of(work, struct r8152, schedule.work); 3825 3826 /* If the device is unplugged or !netif_running(), the workqueue 3827 * doesn't need to wake the device, and could return directly. 3828 */ 3829 if (test_bit(RTL8152_UNPLUG, &tp->flags) || !netif_running(tp->netdev)) 3830 return; 3831 3832 if (usb_autopm_get_interface(tp->intf) < 0) 3833 return; 3834 3835 if (!test_bit(WORK_ENABLE, &tp->flags)) 3836 goto out1; 3837 3838 if (!mutex_trylock(&tp->control)) { 3839 schedule_delayed_work(&tp->schedule, 0); 3840 goto out1; 3841 } 3842 3843 if (test_and_clear_bit(RTL8152_LINK_CHG, &tp->flags)) 3844 set_carrier(tp); 3845 3846 if (test_and_clear_bit(RTL8152_SET_RX_MODE, &tp->flags)) 3847 _rtl8152_set_rx_mode(tp->netdev); 3848 3849 /* don't schedule napi before linking */ 3850 if (test_and_clear_bit(SCHEDULE_NAPI, &tp->flags) && 3851 netif_carrier_ok(tp->netdev)) 3852 napi_schedule(&tp->napi); 3853 3854 mutex_unlock(&tp->control); 3855 3856 out1: 3857 usb_autopm_put_interface(tp->intf); 3858 } 3859 3860 static void rtl_hw_phy_work_func_t(struct work_struct *work) 3861 { 3862 struct r8152 *tp = container_of(work, struct r8152, hw_phy_work.work); 3863 3864 if (test_bit(RTL8152_UNPLUG, &tp->flags)) 3865 return; 3866 3867 if (usb_autopm_get_interface(tp->intf) < 0) 3868 return; 3869 3870 mutex_lock(&tp->control); 3871 3872 tp->rtl_ops.hw_phy_cfg(tp); 3873 3874 rtl8152_set_speed(tp, tp->autoneg, tp->speed, tp->duplex); 3875 3876 mutex_unlock(&tp->control); 3877 3878 usb_autopm_put_interface(tp->intf); 3879 } 3880 3881 #ifdef CONFIG_PM_SLEEP 3882 static int rtl_notifier(struct notifier_block *nb, unsigned long action, 3883 void *data) 3884 { 3885 struct r8152 *tp = container_of(nb, struct r8152, pm_notifier); 3886 3887 switch (action) { 3888 case PM_HIBERNATION_PREPARE: 3889 case PM_SUSPEND_PREPARE: 3890 usb_autopm_get_interface(tp->intf); 3891 break; 3892 3893 case PM_POST_HIBERNATION: 3894 case PM_POST_SUSPEND: 3895 usb_autopm_put_interface(tp->intf); 3896 break; 3897 3898 case PM_POST_RESTORE: 3899 case PM_RESTORE_PREPARE: 3900 default: 3901 break; 3902 } 3903 3904 return NOTIFY_DONE; 3905 } 3906 #endif 3907 3908 static int rtl8152_open(struct net_device *netdev) 3909 { 3910 struct r8152 *tp = netdev_priv(netdev); 3911 int res = 0; 3912 3913 res = alloc_all_mem(tp); 3914 if (res) 3915 goto out; 3916 3917 res = usb_autopm_get_interface(tp->intf); 3918 if (res < 0) 3919 goto out_free; 3920 3921 mutex_lock(&tp->control); 3922 3923 tp->rtl_ops.up(tp); 3924 3925 netif_carrier_off(netdev); 3926 netif_start_queue(netdev); 3927 set_bit(WORK_ENABLE, &tp->flags); 3928 3929 res = usb_submit_urb(tp->intr_urb, GFP_KERNEL); 3930 if (res) { 3931 if (res == -ENODEV) 3932 netif_device_detach(tp->netdev); 3933 netif_warn(tp, ifup, netdev, "intr_urb submit failed: %d\n", 3934 res); 3935 goto out_unlock; 3936 } 3937 napi_enable(&tp->napi); 3938 3939 mutex_unlock(&tp->control); 3940 3941 usb_autopm_put_interface(tp->intf); 3942 #ifdef CONFIG_PM_SLEEP 3943 tp->pm_notifier.notifier_call = rtl_notifier; 3944 register_pm_notifier(&tp->pm_notifier); 3945 #endif 3946 return 0; 3947 3948 out_unlock: 3949 mutex_unlock(&tp->control); 3950 usb_autopm_put_interface(tp->intf); 3951 out_free: 3952 free_all_mem(tp); 3953 out: 3954 return res; 3955 } 3956 3957 static int rtl8152_close(struct net_device *netdev) 3958 { 3959 struct r8152 *tp = netdev_priv(netdev); 3960 int res = 0; 3961 3962 #ifdef CONFIG_PM_SLEEP 3963 unregister_pm_notifier(&tp->pm_notifier); 3964 #endif 3965 if (!test_bit(RTL8152_UNPLUG, &tp->flags)) 3966 napi_disable(&tp->napi); 3967 clear_bit(WORK_ENABLE, &tp->flags); 3968 usb_kill_urb(tp->intr_urb); 3969 cancel_delayed_work_sync(&tp->schedule); 3970 netif_stop_queue(netdev); 3971 3972 res = usb_autopm_get_interface(tp->intf); 3973 if (res < 0 || test_bit(RTL8152_UNPLUG, &tp->flags)) { 3974 rtl_drop_queued_tx(tp); 3975 rtl_stop_rx(tp); 3976 } else { 3977 mutex_lock(&tp->control); 3978 3979 tp->rtl_ops.down(tp); 3980 3981 mutex_unlock(&tp->control); 3982 3983 usb_autopm_put_interface(tp->intf); 3984 } 3985 3986 free_all_mem(tp); 3987 3988 return res; 3989 } 3990 3991 static void rtl_tally_reset(struct r8152 *tp) 3992 { 3993 u32 ocp_data; 3994 3995 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_RSTTALLY); 3996 ocp_data |= TALLY_RESET; 3997 ocp_write_word(tp, MCU_TYPE_PLA, PLA_RSTTALLY, ocp_data); 3998 } 3999 4000 static void r8152b_init(struct r8152 *tp) 4001 { 4002 u32 ocp_data; 4003 u16 data; 4004 4005 if (test_bit(RTL8152_UNPLUG, &tp->flags)) 4006 return; 4007 4008 data = r8152_mdio_read(tp, MII_BMCR); 4009 if (data & BMCR_PDOWN) { 4010 data &= ~BMCR_PDOWN; 4011 r8152_mdio_write(tp, MII_BMCR, data); 4012 } 4013 4014 r8152_aldps_en(tp, false); 4015 4016 if (tp->version == RTL_VER_01) { 4017 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_LED_FEATURE); 4018 ocp_data &= ~LED_MODE_MASK; 4019 ocp_write_word(tp, MCU_TYPE_PLA, PLA_LED_FEATURE, ocp_data); 4020 } 4021 4022 r8152_power_cut_en(tp, false); 4023 4024 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_PHY_PWR); 4025 ocp_data |= TX_10M_IDLE_EN | PFM_PWM_SWITCH; 4026 ocp_write_word(tp, MCU_TYPE_PLA, PLA_PHY_PWR, ocp_data); 4027 ocp_data = ocp_read_dword(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL); 4028 ocp_data &= ~MCU_CLK_RATIO_MASK; 4029 ocp_data |= MCU_CLK_RATIO | D3_CLK_GATED_EN; 4030 ocp_write_dword(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL, ocp_data); 4031 ocp_data = GPHY_STS_MSK | SPEED_DOWN_MSK | 4032 SPDWN_RXDV_MSK | SPDWN_LINKCHG_MSK; 4033 ocp_write_word(tp, MCU_TYPE_PLA, PLA_GPHY_INTR_IMR, ocp_data); 4034 4035 rtl_tally_reset(tp); 4036 4037 /* enable rx aggregation */ 4038 ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_USB_CTRL); 4039 ocp_data &= ~(RX_AGG_DISABLE | RX_ZERO_EN); 4040 ocp_write_word(tp, MCU_TYPE_USB, USB_USB_CTRL, ocp_data); 4041 } 4042 4043 static void r8153_init(struct r8152 *tp) 4044 { 4045 u32 ocp_data; 4046 u16 data; 4047 int i; 4048 4049 if (test_bit(RTL8152_UNPLUG, &tp->flags)) 4050 return; 4051 4052 r8153_u1u2en(tp, false); 4053 4054 for (i = 0; i < 500; i++) { 4055 if (ocp_read_word(tp, MCU_TYPE_PLA, PLA_BOOT_CTRL) & 4056 AUTOLOAD_DONE) 4057 break; 4058 msleep(20); 4059 } 4060 4061 data = r8153_phy_status(tp, 0); 4062 4063 if (tp->version == RTL_VER_03 || tp->version == RTL_VER_04 || 4064 tp->version == RTL_VER_05) 4065 ocp_reg_write(tp, OCP_ADC_CFG, CKADSEL_L | ADC_EN | EN_EMI_L); 4066 4067 data = r8152_mdio_read(tp, MII_BMCR); 4068 if (data & BMCR_PDOWN) { 4069 data &= ~BMCR_PDOWN; 4070 r8152_mdio_write(tp, MII_BMCR, data); 4071 } 4072 4073 data = r8153_phy_status(tp, PHY_STAT_LAN_ON); 4074 4075 r8153_u2p3en(tp, false); 4076 4077 if (tp->version == RTL_VER_04) { 4078 ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_SSPHYLINK2); 4079 ocp_data &= ~pwd_dn_scale_mask; 4080 ocp_data |= pwd_dn_scale(96); 4081 ocp_write_word(tp, MCU_TYPE_USB, USB_SSPHYLINK2, ocp_data); 4082 4083 ocp_data = ocp_read_byte(tp, MCU_TYPE_USB, USB_USB2PHY); 4084 ocp_data |= USB2PHY_L1 | USB2PHY_SUSPEND; 4085 ocp_write_byte(tp, MCU_TYPE_USB, USB_USB2PHY, ocp_data); 4086 } else if (tp->version == RTL_VER_05) { 4087 ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_DMY_REG0); 4088 ocp_data &= ~ECM_ALDPS; 4089 ocp_write_byte(tp, MCU_TYPE_PLA, PLA_DMY_REG0, ocp_data); 4090 4091 ocp_data = ocp_read_byte(tp, MCU_TYPE_USB, USB_CSR_DUMMY1); 4092 if (ocp_read_word(tp, MCU_TYPE_USB, USB_BURST_SIZE) == 0) 4093 ocp_data &= ~DYNAMIC_BURST; 4094 else 4095 ocp_data |= DYNAMIC_BURST; 4096 ocp_write_byte(tp, MCU_TYPE_USB, USB_CSR_DUMMY1, ocp_data); 4097 } else if (tp->version == RTL_VER_06) { 4098 ocp_data = ocp_read_byte(tp, MCU_TYPE_USB, USB_CSR_DUMMY1); 4099 if (ocp_read_word(tp, MCU_TYPE_USB, USB_BURST_SIZE) == 0) 4100 ocp_data &= ~DYNAMIC_BURST; 4101 else 4102 ocp_data |= DYNAMIC_BURST; 4103 ocp_write_byte(tp, MCU_TYPE_USB, USB_CSR_DUMMY1, ocp_data); 4104 } 4105 4106 ocp_data = ocp_read_byte(tp, MCU_TYPE_USB, USB_CSR_DUMMY2); 4107 ocp_data |= EP4_FULL_FC; 4108 ocp_write_byte(tp, MCU_TYPE_USB, USB_CSR_DUMMY2, ocp_data); 4109 4110 ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_WDT11_CTRL); 4111 ocp_data &= ~TIMER11_EN; 4112 ocp_write_word(tp, MCU_TYPE_USB, USB_WDT11_CTRL, ocp_data); 4113 4114 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_LED_FEATURE); 4115 ocp_data &= ~LED_MODE_MASK; 4116 ocp_write_word(tp, MCU_TYPE_PLA, PLA_LED_FEATURE, ocp_data); 4117 4118 ocp_data = FIFO_EMPTY_1FB | ROK_EXIT_LPM; 4119 if (tp->version == RTL_VER_04 && tp->udev->speed < USB_SPEED_SUPER) 4120 ocp_data |= LPM_TIMER_500MS; 4121 else 4122 ocp_data |= LPM_TIMER_500US; 4123 ocp_write_byte(tp, MCU_TYPE_USB, USB_LPM_CTRL, ocp_data); 4124 4125 ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_AFE_CTRL2); 4126 ocp_data &= ~SEN_VAL_MASK; 4127 ocp_data |= SEN_VAL_NORMAL | SEL_RXIDLE; 4128 ocp_write_word(tp, MCU_TYPE_USB, USB_AFE_CTRL2, ocp_data); 4129 4130 ocp_write_word(tp, MCU_TYPE_USB, USB_CONNECT_TIMER, 0x0001); 4131 4132 r8153_power_cut_en(tp, false); 4133 r8153_u1u2en(tp, true); 4134 r8153_mac_clk_spd(tp, false); 4135 usb_enable_lpm(tp->udev); 4136 4137 /* rx aggregation */ 4138 ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_USB_CTRL); 4139 ocp_data &= ~(RX_AGG_DISABLE | RX_ZERO_EN); 4140 if (test_bit(DELL_TB_RX_AGG_BUG, &tp->flags)) 4141 ocp_data |= RX_AGG_DISABLE; 4142 4143 ocp_write_word(tp, MCU_TYPE_USB, USB_USB_CTRL, ocp_data); 4144 4145 rtl_tally_reset(tp); 4146 4147 switch (tp->udev->speed) { 4148 case USB_SPEED_SUPER: 4149 case USB_SPEED_SUPER_PLUS: 4150 tp->coalesce = COALESCE_SUPER; 4151 break; 4152 case USB_SPEED_HIGH: 4153 tp->coalesce = COALESCE_HIGH; 4154 break; 4155 default: 4156 tp->coalesce = COALESCE_SLOW; 4157 break; 4158 } 4159 } 4160 4161 static void r8153b_init(struct r8152 *tp) 4162 { 4163 u32 ocp_data; 4164 u16 data; 4165 int i; 4166 4167 if (test_bit(RTL8152_UNPLUG, &tp->flags)) 4168 return; 4169 4170 r8153b_u1u2en(tp, false); 4171 4172 for (i = 0; i < 500; i++) { 4173 if (ocp_read_word(tp, MCU_TYPE_PLA, PLA_BOOT_CTRL) & 4174 AUTOLOAD_DONE) 4175 break; 4176 msleep(20); 4177 } 4178 4179 data = r8153_phy_status(tp, 0); 4180 4181 data = r8152_mdio_read(tp, MII_BMCR); 4182 if (data & BMCR_PDOWN) { 4183 data &= ~BMCR_PDOWN; 4184 r8152_mdio_write(tp, MII_BMCR, data); 4185 } 4186 4187 data = r8153_phy_status(tp, PHY_STAT_LAN_ON); 4188 4189 r8153_u2p3en(tp, false); 4190 4191 /* MSC timer = 0xfff * 8ms = 32760 ms */ 4192 ocp_write_word(tp, MCU_TYPE_USB, USB_MSC_TIMER, 0x0fff); 4193 4194 /* U1/U2/L1 idle timer. 500 us */ 4195 ocp_write_word(tp, MCU_TYPE_USB, USB_U1U2_TIMER, 500); 4196 4197 r8153b_power_cut_en(tp, false); 4198 r8153b_ups_en(tp, false); 4199 r8153b_queue_wake(tp, false); 4200 rtl_runtime_suspend_enable(tp, false); 4201 r8153b_u1u2en(tp, true); 4202 usb_enable_lpm(tp->udev); 4203 4204 /* MAC clock speed down */ 4205 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL2); 4206 ocp_data |= MAC_CLK_SPDWN_EN; 4207 ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL2, ocp_data); 4208 4209 set_bit(GREEN_ETHERNET, &tp->flags); 4210 4211 /* rx aggregation */ 4212 ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_USB_CTRL); 4213 ocp_data &= ~(RX_AGG_DISABLE | RX_ZERO_EN); 4214 ocp_write_word(tp, MCU_TYPE_USB, USB_USB_CTRL, ocp_data); 4215 4216 rtl_tally_reset(tp); 4217 4218 tp->coalesce = 15000; /* 15 us */ 4219 } 4220 4221 static int rtl8152_pre_reset(struct usb_interface *intf) 4222 { 4223 struct r8152 *tp = usb_get_intfdata(intf); 4224 struct net_device *netdev; 4225 4226 if (!tp) 4227 return 0; 4228 4229 netdev = tp->netdev; 4230 if (!netif_running(netdev)) 4231 return 0; 4232 4233 netif_stop_queue(netdev); 4234 napi_disable(&tp->napi); 4235 clear_bit(WORK_ENABLE, &tp->flags); 4236 usb_kill_urb(tp->intr_urb); 4237 cancel_delayed_work_sync(&tp->schedule); 4238 if (netif_carrier_ok(netdev)) { 4239 mutex_lock(&tp->control); 4240 tp->rtl_ops.disable(tp); 4241 mutex_unlock(&tp->control); 4242 } 4243 4244 return 0; 4245 } 4246 4247 static int rtl8152_post_reset(struct usb_interface *intf) 4248 { 4249 struct r8152 *tp = usb_get_intfdata(intf); 4250 struct net_device *netdev; 4251 4252 if (!tp) 4253 return 0; 4254 4255 netdev = tp->netdev; 4256 if (!netif_running(netdev)) 4257 return 0; 4258 4259 set_bit(WORK_ENABLE, &tp->flags); 4260 if (netif_carrier_ok(netdev)) { 4261 mutex_lock(&tp->control); 4262 tp->rtl_ops.enable(tp); 4263 rtl_start_rx(tp); 4264 _rtl8152_set_rx_mode(netdev); 4265 mutex_unlock(&tp->control); 4266 } 4267 4268 napi_enable(&tp->napi); 4269 netif_wake_queue(netdev); 4270 usb_submit_urb(tp->intr_urb, GFP_KERNEL); 4271 4272 if (!list_empty(&tp->rx_done)) 4273 napi_schedule(&tp->napi); 4274 4275 return 0; 4276 } 4277 4278 static bool delay_autosuspend(struct r8152 *tp) 4279 { 4280 bool sw_linking = !!netif_carrier_ok(tp->netdev); 4281 bool hw_linking = !!(rtl8152_get_speed(tp) & LINK_STATUS); 4282 4283 /* This means a linking change occurs and the driver doesn't detect it, 4284 * yet. If the driver has disabled tx/rx and hw is linking on, the 4285 * device wouldn't wake up by receiving any packet. 4286 */ 4287 if (work_busy(&tp->schedule.work) || sw_linking != hw_linking) 4288 return true; 4289 4290 /* If the linking down is occurred by nway, the device may miss the 4291 * linking change event. And it wouldn't wake when linking on. 4292 */ 4293 if (!sw_linking && tp->rtl_ops.in_nway(tp)) 4294 return true; 4295 else if (!skb_queue_empty(&tp->tx_queue)) 4296 return true; 4297 else 4298 return false; 4299 } 4300 4301 static int rtl8152_runtime_resume(struct r8152 *tp) 4302 { 4303 struct net_device *netdev = tp->netdev; 4304 4305 if (netif_running(netdev) && netdev->flags & IFF_UP) { 4306 struct napi_struct *napi = &tp->napi; 4307 4308 tp->rtl_ops.autosuspend_en(tp, false); 4309 napi_disable(napi); 4310 set_bit(WORK_ENABLE, &tp->flags); 4311 4312 if (netif_carrier_ok(netdev)) { 4313 if (rtl8152_get_speed(tp) & LINK_STATUS) { 4314 rtl_start_rx(tp); 4315 } else { 4316 netif_carrier_off(netdev); 4317 tp->rtl_ops.disable(tp); 4318 netif_info(tp, link, netdev, "linking down\n"); 4319 } 4320 } 4321 4322 napi_enable(napi); 4323 clear_bit(SELECTIVE_SUSPEND, &tp->flags); 4324 smp_mb__after_atomic(); 4325 4326 if (!list_empty(&tp->rx_done)) 4327 napi_schedule(&tp->napi); 4328 4329 usb_submit_urb(tp->intr_urb, GFP_NOIO); 4330 } else { 4331 if (netdev->flags & IFF_UP) 4332 tp->rtl_ops.autosuspend_en(tp, false); 4333 4334 clear_bit(SELECTIVE_SUSPEND, &tp->flags); 4335 } 4336 4337 return 0; 4338 } 4339 4340 static int rtl8152_system_resume(struct r8152 *tp) 4341 { 4342 struct net_device *netdev = tp->netdev; 4343 4344 netif_device_attach(netdev); 4345 4346 if (netif_running(netdev) && netdev->flags & IFF_UP) { 4347 tp->rtl_ops.up(tp); 4348 netif_carrier_off(netdev); 4349 set_bit(WORK_ENABLE, &tp->flags); 4350 usb_submit_urb(tp->intr_urb, GFP_NOIO); 4351 } 4352 4353 return 0; 4354 } 4355 4356 static int rtl8152_runtime_suspend(struct r8152 *tp) 4357 { 4358 struct net_device *netdev = tp->netdev; 4359 int ret = 0; 4360 4361 set_bit(SELECTIVE_SUSPEND, &tp->flags); 4362 smp_mb__after_atomic(); 4363 4364 if (netif_running(netdev) && test_bit(WORK_ENABLE, &tp->flags)) { 4365 u32 rcr = 0; 4366 4367 if (netif_carrier_ok(netdev)) { 4368 u32 ocp_data; 4369 4370 rcr = ocp_read_dword(tp, MCU_TYPE_PLA, PLA_RCR); 4371 ocp_data = rcr & ~RCR_ACPT_ALL; 4372 ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RCR, ocp_data); 4373 rxdy_gated_en(tp, true); 4374 ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, 4375 PLA_OOB_CTRL); 4376 if (!(ocp_data & RXFIFO_EMPTY)) { 4377 rxdy_gated_en(tp, false); 4378 ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RCR, rcr); 4379 clear_bit(SELECTIVE_SUSPEND, &tp->flags); 4380 smp_mb__after_atomic(); 4381 ret = -EBUSY; 4382 goto out1; 4383 } 4384 } 4385 4386 clear_bit(WORK_ENABLE, &tp->flags); 4387 usb_kill_urb(tp->intr_urb); 4388 4389 tp->rtl_ops.autosuspend_en(tp, true); 4390 4391 if (netif_carrier_ok(netdev)) { 4392 struct napi_struct *napi = &tp->napi; 4393 4394 napi_disable(napi); 4395 rtl_stop_rx(tp); 4396 rxdy_gated_en(tp, false); 4397 ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RCR, rcr); 4398 napi_enable(napi); 4399 } 4400 4401 if (delay_autosuspend(tp)) { 4402 rtl8152_runtime_resume(tp); 4403 ret = -EBUSY; 4404 } 4405 } 4406 4407 out1: 4408 return ret; 4409 } 4410 4411 static int rtl8152_system_suspend(struct r8152 *tp) 4412 { 4413 struct net_device *netdev = tp->netdev; 4414 int ret = 0; 4415 4416 netif_device_detach(netdev); 4417 4418 if (netif_running(netdev) && test_bit(WORK_ENABLE, &tp->flags)) { 4419 struct napi_struct *napi = &tp->napi; 4420 4421 clear_bit(WORK_ENABLE, &tp->flags); 4422 usb_kill_urb(tp->intr_urb); 4423 napi_disable(napi); 4424 cancel_delayed_work_sync(&tp->schedule); 4425 tp->rtl_ops.down(tp); 4426 napi_enable(napi); 4427 } 4428 4429 return ret; 4430 } 4431 4432 static int rtl8152_suspend(struct usb_interface *intf, pm_message_t message) 4433 { 4434 struct r8152 *tp = usb_get_intfdata(intf); 4435 int ret; 4436 4437 mutex_lock(&tp->control); 4438 4439 if (PMSG_IS_AUTO(message)) 4440 ret = rtl8152_runtime_suspend(tp); 4441 else 4442 ret = rtl8152_system_suspend(tp); 4443 4444 mutex_unlock(&tp->control); 4445 4446 return ret; 4447 } 4448 4449 static int rtl8152_resume(struct usb_interface *intf) 4450 { 4451 struct r8152 *tp = usb_get_intfdata(intf); 4452 int ret; 4453 4454 mutex_lock(&tp->control); 4455 4456 if (test_bit(SELECTIVE_SUSPEND, &tp->flags)) 4457 ret = rtl8152_runtime_resume(tp); 4458 else 4459 ret = rtl8152_system_resume(tp); 4460 4461 mutex_unlock(&tp->control); 4462 4463 return ret; 4464 } 4465 4466 static int rtl8152_reset_resume(struct usb_interface *intf) 4467 { 4468 struct r8152 *tp = usb_get_intfdata(intf); 4469 4470 clear_bit(SELECTIVE_SUSPEND, &tp->flags); 4471 mutex_lock(&tp->control); 4472 tp->rtl_ops.init(tp); 4473 queue_delayed_work(system_long_wq, &tp->hw_phy_work, 0); 4474 mutex_unlock(&tp->control); 4475 return rtl8152_resume(intf); 4476 } 4477 4478 static void rtl8152_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol) 4479 { 4480 struct r8152 *tp = netdev_priv(dev); 4481 4482 if (usb_autopm_get_interface(tp->intf) < 0) 4483 return; 4484 4485 if (!rtl_can_wakeup(tp)) { 4486 wol->supported = 0; 4487 wol->wolopts = 0; 4488 } else { 4489 mutex_lock(&tp->control); 4490 wol->supported = WAKE_ANY; 4491 wol->wolopts = __rtl_get_wol(tp); 4492 mutex_unlock(&tp->control); 4493 } 4494 4495 usb_autopm_put_interface(tp->intf); 4496 } 4497 4498 static int rtl8152_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) 4499 { 4500 struct r8152 *tp = netdev_priv(dev); 4501 int ret; 4502 4503 if (!rtl_can_wakeup(tp)) 4504 return -EOPNOTSUPP; 4505 4506 ret = usb_autopm_get_interface(tp->intf); 4507 if (ret < 0) 4508 goto out_set_wol; 4509 4510 mutex_lock(&tp->control); 4511 4512 __rtl_set_wol(tp, wol->wolopts); 4513 tp->saved_wolopts = wol->wolopts & WAKE_ANY; 4514 4515 mutex_unlock(&tp->control); 4516 4517 usb_autopm_put_interface(tp->intf); 4518 4519 out_set_wol: 4520 return ret; 4521 } 4522 4523 static u32 rtl8152_get_msglevel(struct net_device *dev) 4524 { 4525 struct r8152 *tp = netdev_priv(dev); 4526 4527 return tp->msg_enable; 4528 } 4529 4530 static void rtl8152_set_msglevel(struct net_device *dev, u32 value) 4531 { 4532 struct r8152 *tp = netdev_priv(dev); 4533 4534 tp->msg_enable = value; 4535 } 4536 4537 static void rtl8152_get_drvinfo(struct net_device *netdev, 4538 struct ethtool_drvinfo *info) 4539 { 4540 struct r8152 *tp = netdev_priv(netdev); 4541 4542 strlcpy(info->driver, MODULENAME, sizeof(info->driver)); 4543 strlcpy(info->version, DRIVER_VERSION, sizeof(info->version)); 4544 usb_make_path(tp->udev, info->bus_info, sizeof(info->bus_info)); 4545 } 4546 4547 static 4548 int rtl8152_get_link_ksettings(struct net_device *netdev, 4549 struct ethtool_link_ksettings *cmd) 4550 { 4551 struct r8152 *tp = netdev_priv(netdev); 4552 int ret; 4553 4554 if (!tp->mii.mdio_read) 4555 return -EOPNOTSUPP; 4556 4557 ret = usb_autopm_get_interface(tp->intf); 4558 if (ret < 0) 4559 goto out; 4560 4561 mutex_lock(&tp->control); 4562 4563 mii_ethtool_get_link_ksettings(&tp->mii, cmd); 4564 4565 mutex_unlock(&tp->control); 4566 4567 usb_autopm_put_interface(tp->intf); 4568 4569 out: 4570 return ret; 4571 } 4572 4573 static int rtl8152_set_link_ksettings(struct net_device *dev, 4574 const struct ethtool_link_ksettings *cmd) 4575 { 4576 struct r8152 *tp = netdev_priv(dev); 4577 int ret; 4578 4579 ret = usb_autopm_get_interface(tp->intf); 4580 if (ret < 0) 4581 goto out; 4582 4583 mutex_lock(&tp->control); 4584 4585 ret = rtl8152_set_speed(tp, cmd->base.autoneg, cmd->base.speed, 4586 cmd->base.duplex); 4587 if (!ret) { 4588 tp->autoneg = cmd->base.autoneg; 4589 tp->speed = cmd->base.speed; 4590 tp->duplex = cmd->base.duplex; 4591 } 4592 4593 mutex_unlock(&tp->control); 4594 4595 usb_autopm_put_interface(tp->intf); 4596 4597 out: 4598 return ret; 4599 } 4600 4601 static const char rtl8152_gstrings[][ETH_GSTRING_LEN] = { 4602 "tx_packets", 4603 "rx_packets", 4604 "tx_errors", 4605 "rx_errors", 4606 "rx_missed", 4607 "align_errors", 4608 "tx_single_collisions", 4609 "tx_multi_collisions", 4610 "rx_unicast", 4611 "rx_broadcast", 4612 "rx_multicast", 4613 "tx_aborted", 4614 "tx_underrun", 4615 }; 4616 4617 static int rtl8152_get_sset_count(struct net_device *dev, int sset) 4618 { 4619 switch (sset) { 4620 case ETH_SS_STATS: 4621 return ARRAY_SIZE(rtl8152_gstrings); 4622 default: 4623 return -EOPNOTSUPP; 4624 } 4625 } 4626 4627 static void rtl8152_get_ethtool_stats(struct net_device *dev, 4628 struct ethtool_stats *stats, u64 *data) 4629 { 4630 struct r8152 *tp = netdev_priv(dev); 4631 struct tally_counter tally; 4632 4633 if (usb_autopm_get_interface(tp->intf) < 0) 4634 return; 4635 4636 generic_ocp_read(tp, PLA_TALLYCNT, sizeof(tally), &tally, MCU_TYPE_PLA); 4637 4638 usb_autopm_put_interface(tp->intf); 4639 4640 data[0] = le64_to_cpu(tally.tx_packets); 4641 data[1] = le64_to_cpu(tally.rx_packets); 4642 data[2] = le64_to_cpu(tally.tx_errors); 4643 data[3] = le32_to_cpu(tally.rx_errors); 4644 data[4] = le16_to_cpu(tally.rx_missed); 4645 data[5] = le16_to_cpu(tally.align_errors); 4646 data[6] = le32_to_cpu(tally.tx_one_collision); 4647 data[7] = le32_to_cpu(tally.tx_multi_collision); 4648 data[8] = le64_to_cpu(tally.rx_unicast); 4649 data[9] = le64_to_cpu(tally.rx_broadcast); 4650 data[10] = le32_to_cpu(tally.rx_multicast); 4651 data[11] = le16_to_cpu(tally.tx_aborted); 4652 data[12] = le16_to_cpu(tally.tx_underrun); 4653 } 4654 4655 static void rtl8152_get_strings(struct net_device *dev, u32 stringset, u8 *data) 4656 { 4657 switch (stringset) { 4658 case ETH_SS_STATS: 4659 memcpy(data, *rtl8152_gstrings, sizeof(rtl8152_gstrings)); 4660 break; 4661 } 4662 } 4663 4664 static int r8152_get_eee(struct r8152 *tp, struct ethtool_eee *eee) 4665 { 4666 u32 ocp_data, lp, adv, supported = 0; 4667 u16 val; 4668 4669 val = r8152_mmd_read(tp, MDIO_MMD_PCS, MDIO_PCS_EEE_ABLE); 4670 supported = mmd_eee_cap_to_ethtool_sup_t(val); 4671 4672 val = r8152_mmd_read(tp, MDIO_MMD_AN, MDIO_AN_EEE_ADV); 4673 adv = mmd_eee_adv_to_ethtool_adv_t(val); 4674 4675 val = r8152_mmd_read(tp, MDIO_MMD_AN, MDIO_AN_EEE_LPABLE); 4676 lp = mmd_eee_adv_to_ethtool_adv_t(val); 4677 4678 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_EEE_CR); 4679 ocp_data &= EEE_RX_EN | EEE_TX_EN; 4680 4681 eee->eee_enabled = !!ocp_data; 4682 eee->eee_active = !!(supported & adv & lp); 4683 eee->supported = supported; 4684 eee->advertised = adv; 4685 eee->lp_advertised = lp; 4686 4687 return 0; 4688 } 4689 4690 static int r8152_set_eee(struct r8152 *tp, struct ethtool_eee *eee) 4691 { 4692 u16 val = ethtool_adv_to_mmd_eee_adv_t(eee->advertised); 4693 4694 r8152_eee_en(tp, eee->eee_enabled); 4695 4696 if (!eee->eee_enabled) 4697 val = 0; 4698 4699 r8152_mmd_write(tp, MDIO_MMD_AN, MDIO_AN_EEE_ADV, val); 4700 4701 return 0; 4702 } 4703 4704 static int r8153_get_eee(struct r8152 *tp, struct ethtool_eee *eee) 4705 { 4706 u32 ocp_data, lp, adv, supported = 0; 4707 u16 val; 4708 4709 val = ocp_reg_read(tp, OCP_EEE_ABLE); 4710 supported = mmd_eee_cap_to_ethtool_sup_t(val); 4711 4712 val = ocp_reg_read(tp, OCP_EEE_ADV); 4713 adv = mmd_eee_adv_to_ethtool_adv_t(val); 4714 4715 val = ocp_reg_read(tp, OCP_EEE_LPABLE); 4716 lp = mmd_eee_adv_to_ethtool_adv_t(val); 4717 4718 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_EEE_CR); 4719 ocp_data &= EEE_RX_EN | EEE_TX_EN; 4720 4721 eee->eee_enabled = !!ocp_data; 4722 eee->eee_active = !!(supported & adv & lp); 4723 eee->supported = supported; 4724 eee->advertised = adv; 4725 eee->lp_advertised = lp; 4726 4727 return 0; 4728 } 4729 4730 static int r8153_set_eee(struct r8152 *tp, struct ethtool_eee *eee) 4731 { 4732 u16 val = ethtool_adv_to_mmd_eee_adv_t(eee->advertised); 4733 4734 r8153_eee_en(tp, eee->eee_enabled); 4735 4736 if (!eee->eee_enabled) 4737 val = 0; 4738 4739 ocp_reg_write(tp, OCP_EEE_ADV, val); 4740 4741 return 0; 4742 } 4743 4744 static int r8153b_set_eee(struct r8152 *tp, struct ethtool_eee *eee) 4745 { 4746 u16 val = ethtool_adv_to_mmd_eee_adv_t(eee->advertised); 4747 4748 r8153b_eee_en(tp, eee->eee_enabled); 4749 4750 if (!eee->eee_enabled) 4751 val = 0; 4752 4753 ocp_reg_write(tp, OCP_EEE_ADV, val); 4754 4755 return 0; 4756 } 4757 4758 static int 4759 rtl_ethtool_get_eee(struct net_device *net, struct ethtool_eee *edata) 4760 { 4761 struct r8152 *tp = netdev_priv(net); 4762 int ret; 4763 4764 ret = usb_autopm_get_interface(tp->intf); 4765 if (ret < 0) 4766 goto out; 4767 4768 mutex_lock(&tp->control); 4769 4770 ret = tp->rtl_ops.eee_get(tp, edata); 4771 4772 mutex_unlock(&tp->control); 4773 4774 usb_autopm_put_interface(tp->intf); 4775 4776 out: 4777 return ret; 4778 } 4779 4780 static int 4781 rtl_ethtool_set_eee(struct net_device *net, struct ethtool_eee *edata) 4782 { 4783 struct r8152 *tp = netdev_priv(net); 4784 int ret; 4785 4786 ret = usb_autopm_get_interface(tp->intf); 4787 if (ret < 0) 4788 goto out; 4789 4790 mutex_lock(&tp->control); 4791 4792 ret = tp->rtl_ops.eee_set(tp, edata); 4793 if (!ret) 4794 ret = mii_nway_restart(&tp->mii); 4795 4796 mutex_unlock(&tp->control); 4797 4798 usb_autopm_put_interface(tp->intf); 4799 4800 out: 4801 return ret; 4802 } 4803 4804 static int rtl8152_nway_reset(struct net_device *dev) 4805 { 4806 struct r8152 *tp = netdev_priv(dev); 4807 int ret; 4808 4809 ret = usb_autopm_get_interface(tp->intf); 4810 if (ret < 0) 4811 goto out; 4812 4813 mutex_lock(&tp->control); 4814 4815 ret = mii_nway_restart(&tp->mii); 4816 4817 mutex_unlock(&tp->control); 4818 4819 usb_autopm_put_interface(tp->intf); 4820 4821 out: 4822 return ret; 4823 } 4824 4825 static int rtl8152_get_coalesce(struct net_device *netdev, 4826 struct ethtool_coalesce *coalesce) 4827 { 4828 struct r8152 *tp = netdev_priv(netdev); 4829 4830 switch (tp->version) { 4831 case RTL_VER_01: 4832 case RTL_VER_02: 4833 case RTL_VER_07: 4834 return -EOPNOTSUPP; 4835 default: 4836 break; 4837 } 4838 4839 coalesce->rx_coalesce_usecs = tp->coalesce; 4840 4841 return 0; 4842 } 4843 4844 static int rtl8152_set_coalesce(struct net_device *netdev, 4845 struct ethtool_coalesce *coalesce) 4846 { 4847 struct r8152 *tp = netdev_priv(netdev); 4848 int ret; 4849 4850 switch (tp->version) { 4851 case RTL_VER_01: 4852 case RTL_VER_02: 4853 case RTL_VER_07: 4854 return -EOPNOTSUPP; 4855 default: 4856 break; 4857 } 4858 4859 if (coalesce->rx_coalesce_usecs > COALESCE_SLOW) 4860 return -EINVAL; 4861 4862 ret = usb_autopm_get_interface(tp->intf); 4863 if (ret < 0) 4864 return ret; 4865 4866 mutex_lock(&tp->control); 4867 4868 if (tp->coalesce != coalesce->rx_coalesce_usecs) { 4869 tp->coalesce = coalesce->rx_coalesce_usecs; 4870 4871 if (netif_running(tp->netdev) && netif_carrier_ok(netdev)) 4872 r8153_set_rx_early_timeout(tp); 4873 } 4874 4875 mutex_unlock(&tp->control); 4876 4877 usb_autopm_put_interface(tp->intf); 4878 4879 return ret; 4880 } 4881 4882 static const struct ethtool_ops ops = { 4883 .get_drvinfo = rtl8152_get_drvinfo, 4884 .get_link = ethtool_op_get_link, 4885 .nway_reset = rtl8152_nway_reset, 4886 .get_msglevel = rtl8152_get_msglevel, 4887 .set_msglevel = rtl8152_set_msglevel, 4888 .get_wol = rtl8152_get_wol, 4889 .set_wol = rtl8152_set_wol, 4890 .get_strings = rtl8152_get_strings, 4891 .get_sset_count = rtl8152_get_sset_count, 4892 .get_ethtool_stats = rtl8152_get_ethtool_stats, 4893 .get_coalesce = rtl8152_get_coalesce, 4894 .set_coalesce = rtl8152_set_coalesce, 4895 .get_eee = rtl_ethtool_get_eee, 4896 .set_eee = rtl_ethtool_set_eee, 4897 .get_link_ksettings = rtl8152_get_link_ksettings, 4898 .set_link_ksettings = rtl8152_set_link_ksettings, 4899 }; 4900 4901 static int rtl8152_ioctl(struct net_device *netdev, struct ifreq *rq, int cmd) 4902 { 4903 struct r8152 *tp = netdev_priv(netdev); 4904 struct mii_ioctl_data *data = if_mii(rq); 4905 int res; 4906 4907 if (test_bit(RTL8152_UNPLUG, &tp->flags)) 4908 return -ENODEV; 4909 4910 res = usb_autopm_get_interface(tp->intf); 4911 if (res < 0) 4912 goto out; 4913 4914 switch (cmd) { 4915 case SIOCGMIIPHY: 4916 data->phy_id = R8152_PHY_ID; /* Internal PHY */ 4917 break; 4918 4919 case SIOCGMIIREG: 4920 mutex_lock(&tp->control); 4921 data->val_out = r8152_mdio_read(tp, data->reg_num); 4922 mutex_unlock(&tp->control); 4923 break; 4924 4925 case SIOCSMIIREG: 4926 if (!capable(CAP_NET_ADMIN)) { 4927 res = -EPERM; 4928 break; 4929 } 4930 mutex_lock(&tp->control); 4931 r8152_mdio_write(tp, data->reg_num, data->val_in); 4932 mutex_unlock(&tp->control); 4933 break; 4934 4935 default: 4936 res = -EOPNOTSUPP; 4937 } 4938 4939 usb_autopm_put_interface(tp->intf); 4940 4941 out: 4942 return res; 4943 } 4944 4945 static int rtl8152_change_mtu(struct net_device *dev, int new_mtu) 4946 { 4947 struct r8152 *tp = netdev_priv(dev); 4948 int ret; 4949 4950 switch (tp->version) { 4951 case RTL_VER_01: 4952 case RTL_VER_02: 4953 case RTL_VER_07: 4954 dev->mtu = new_mtu; 4955 return 0; 4956 default: 4957 break; 4958 } 4959 4960 ret = usb_autopm_get_interface(tp->intf); 4961 if (ret < 0) 4962 return ret; 4963 4964 mutex_lock(&tp->control); 4965 4966 dev->mtu = new_mtu; 4967 4968 if (netif_running(dev)) { 4969 u32 rms = new_mtu + VLAN_ETH_HLEN + ETH_FCS_LEN; 4970 4971 ocp_write_word(tp, MCU_TYPE_PLA, PLA_RMS, rms); 4972 4973 if (netif_carrier_ok(dev)) 4974 r8153_set_rx_early_size(tp); 4975 } 4976 4977 mutex_unlock(&tp->control); 4978 4979 usb_autopm_put_interface(tp->intf); 4980 4981 return ret; 4982 } 4983 4984 static const struct net_device_ops rtl8152_netdev_ops = { 4985 .ndo_open = rtl8152_open, 4986 .ndo_stop = rtl8152_close, 4987 .ndo_do_ioctl = rtl8152_ioctl, 4988 .ndo_start_xmit = rtl8152_start_xmit, 4989 .ndo_tx_timeout = rtl8152_tx_timeout, 4990 .ndo_set_features = rtl8152_set_features, 4991 .ndo_set_rx_mode = rtl8152_set_rx_mode, 4992 .ndo_set_mac_address = rtl8152_set_mac_address, 4993 .ndo_change_mtu = rtl8152_change_mtu, 4994 .ndo_validate_addr = eth_validate_addr, 4995 .ndo_features_check = rtl8152_features_check, 4996 }; 4997 4998 static void rtl8152_unload(struct r8152 *tp) 4999 { 5000 if (test_bit(RTL8152_UNPLUG, &tp->flags)) 5001 return; 5002 5003 if (tp->version != RTL_VER_01) 5004 r8152_power_cut_en(tp, true); 5005 } 5006 5007 static void rtl8153_unload(struct r8152 *tp) 5008 { 5009 if (test_bit(RTL8152_UNPLUG, &tp->flags)) 5010 return; 5011 5012 r8153_power_cut_en(tp, false); 5013 } 5014 5015 static void rtl8153b_unload(struct r8152 *tp) 5016 { 5017 if (test_bit(RTL8152_UNPLUG, &tp->flags)) 5018 return; 5019 5020 r8153b_power_cut_en(tp, false); 5021 } 5022 5023 static int rtl_ops_init(struct r8152 *tp) 5024 { 5025 struct rtl_ops *ops = &tp->rtl_ops; 5026 int ret = 0; 5027 5028 switch (tp->version) { 5029 case RTL_VER_01: 5030 case RTL_VER_02: 5031 case RTL_VER_07: 5032 ops->init = r8152b_init; 5033 ops->enable = rtl8152_enable; 5034 ops->disable = rtl8152_disable; 5035 ops->up = rtl8152_up; 5036 ops->down = rtl8152_down; 5037 ops->unload = rtl8152_unload; 5038 ops->eee_get = r8152_get_eee; 5039 ops->eee_set = r8152_set_eee; 5040 ops->in_nway = rtl8152_in_nway; 5041 ops->hw_phy_cfg = r8152b_hw_phy_cfg; 5042 ops->autosuspend_en = rtl_runtime_suspend_enable; 5043 break; 5044 5045 case RTL_VER_03: 5046 case RTL_VER_04: 5047 case RTL_VER_05: 5048 case RTL_VER_06: 5049 ops->init = r8153_init; 5050 ops->enable = rtl8153_enable; 5051 ops->disable = rtl8153_disable; 5052 ops->up = rtl8153_up; 5053 ops->down = rtl8153_down; 5054 ops->unload = rtl8153_unload; 5055 ops->eee_get = r8153_get_eee; 5056 ops->eee_set = r8153_set_eee; 5057 ops->in_nway = rtl8153_in_nway; 5058 ops->hw_phy_cfg = r8153_hw_phy_cfg; 5059 ops->autosuspend_en = rtl8153_runtime_enable; 5060 break; 5061 5062 case RTL_VER_08: 5063 case RTL_VER_09: 5064 ops->init = r8153b_init; 5065 ops->enable = rtl8153_enable; 5066 ops->disable = rtl8153b_disable; 5067 ops->up = rtl8153b_up; 5068 ops->down = rtl8153b_down; 5069 ops->unload = rtl8153b_unload; 5070 ops->eee_get = r8153_get_eee; 5071 ops->eee_set = r8153b_set_eee; 5072 ops->in_nway = rtl8153_in_nway; 5073 ops->hw_phy_cfg = r8153b_hw_phy_cfg; 5074 ops->autosuspend_en = rtl8153b_runtime_enable; 5075 break; 5076 5077 default: 5078 ret = -ENODEV; 5079 netif_err(tp, probe, tp->netdev, "Unknown Device\n"); 5080 break; 5081 } 5082 5083 return ret; 5084 } 5085 5086 static u8 rtl_get_version(struct usb_interface *intf) 5087 { 5088 struct usb_device *udev = interface_to_usbdev(intf); 5089 u32 ocp_data = 0; 5090 __le32 *tmp; 5091 u8 version; 5092 int ret; 5093 5094 tmp = kmalloc(sizeof(*tmp), GFP_KERNEL); 5095 if (!tmp) 5096 return 0; 5097 5098 ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 5099 RTL8152_REQ_GET_REGS, RTL8152_REQT_READ, 5100 PLA_TCR0, MCU_TYPE_PLA, tmp, sizeof(*tmp), 500); 5101 if (ret > 0) 5102 ocp_data = (__le32_to_cpu(*tmp) >> 16) & VERSION_MASK; 5103 5104 kfree(tmp); 5105 5106 switch (ocp_data) { 5107 case 0x4c00: 5108 version = RTL_VER_01; 5109 break; 5110 case 0x4c10: 5111 version = RTL_VER_02; 5112 break; 5113 case 0x5c00: 5114 version = RTL_VER_03; 5115 break; 5116 case 0x5c10: 5117 version = RTL_VER_04; 5118 break; 5119 case 0x5c20: 5120 version = RTL_VER_05; 5121 break; 5122 case 0x5c30: 5123 version = RTL_VER_06; 5124 break; 5125 case 0x4800: 5126 version = RTL_VER_07; 5127 break; 5128 case 0x6000: 5129 version = RTL_VER_08; 5130 break; 5131 case 0x6010: 5132 version = RTL_VER_09; 5133 break; 5134 default: 5135 version = RTL_VER_UNKNOWN; 5136 dev_info(&intf->dev, "Unknown version 0x%04x\n", ocp_data); 5137 break; 5138 } 5139 5140 dev_dbg(&intf->dev, "Detected version 0x%04x\n", version); 5141 5142 return version; 5143 } 5144 5145 static int rtl8152_probe(struct usb_interface *intf, 5146 const struct usb_device_id *id) 5147 { 5148 struct usb_device *udev = interface_to_usbdev(intf); 5149 u8 version = rtl_get_version(intf); 5150 struct r8152 *tp; 5151 struct net_device *netdev; 5152 int ret; 5153 5154 if (version == RTL_VER_UNKNOWN) 5155 return -ENODEV; 5156 5157 if (udev->actconfig->desc.bConfigurationValue != 1) { 5158 usb_driver_set_configuration(udev, 1); 5159 return -ENODEV; 5160 } 5161 5162 usb_reset_device(udev); 5163 netdev = alloc_etherdev(sizeof(struct r8152)); 5164 if (!netdev) { 5165 dev_err(&intf->dev, "Out of memory\n"); 5166 return -ENOMEM; 5167 } 5168 5169 SET_NETDEV_DEV(netdev, &intf->dev); 5170 tp = netdev_priv(netdev); 5171 tp->msg_enable = 0x7FFF; 5172 5173 tp->udev = udev; 5174 tp->netdev = netdev; 5175 tp->intf = intf; 5176 tp->version = version; 5177 5178 switch (version) { 5179 case RTL_VER_01: 5180 case RTL_VER_02: 5181 case RTL_VER_07: 5182 tp->mii.supports_gmii = 0; 5183 break; 5184 default: 5185 tp->mii.supports_gmii = 1; 5186 break; 5187 } 5188 5189 ret = rtl_ops_init(tp); 5190 if (ret) 5191 goto out; 5192 5193 mutex_init(&tp->control); 5194 INIT_DELAYED_WORK(&tp->schedule, rtl_work_func_t); 5195 INIT_DELAYED_WORK(&tp->hw_phy_work, rtl_hw_phy_work_func_t); 5196 5197 netdev->netdev_ops = &rtl8152_netdev_ops; 5198 netdev->watchdog_timeo = RTL8152_TX_TIMEOUT; 5199 5200 netdev->features |= NETIF_F_RXCSUM | NETIF_F_IP_CSUM | NETIF_F_SG | 5201 NETIF_F_TSO | NETIF_F_FRAGLIST | NETIF_F_IPV6_CSUM | 5202 NETIF_F_TSO6 | NETIF_F_HW_VLAN_CTAG_RX | 5203 NETIF_F_HW_VLAN_CTAG_TX; 5204 netdev->hw_features = NETIF_F_RXCSUM | NETIF_F_IP_CSUM | NETIF_F_SG | 5205 NETIF_F_TSO | NETIF_F_FRAGLIST | 5206 NETIF_F_IPV6_CSUM | NETIF_F_TSO6 | 5207 NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HW_VLAN_CTAG_TX; 5208 netdev->vlan_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO | 5209 NETIF_F_HIGHDMA | NETIF_F_FRAGLIST | 5210 NETIF_F_IPV6_CSUM | NETIF_F_TSO6; 5211 5212 if (tp->version == RTL_VER_01) { 5213 netdev->features &= ~NETIF_F_RXCSUM; 5214 netdev->hw_features &= ~NETIF_F_RXCSUM; 5215 } 5216 5217 if (le16_to_cpu(udev->descriptor.bcdDevice) == 0x3011 && 5218 udev->serial && !strcmp(udev->serial, "000001000000")) { 5219 dev_info(&udev->dev, "Dell TB16 Dock, disable RX aggregation"); 5220 set_bit(DELL_TB_RX_AGG_BUG, &tp->flags); 5221 } 5222 5223 netdev->ethtool_ops = &ops; 5224 netif_set_gso_max_size(netdev, RTL_LIMITED_TSO_SIZE); 5225 5226 /* MTU range: 68 - 1500 or 9194 */ 5227 netdev->min_mtu = ETH_MIN_MTU; 5228 switch (tp->version) { 5229 case RTL_VER_01: 5230 case RTL_VER_02: 5231 netdev->max_mtu = ETH_DATA_LEN; 5232 break; 5233 default: 5234 netdev->max_mtu = RTL8153_MAX_MTU; 5235 break; 5236 } 5237 5238 tp->mii.dev = netdev; 5239 tp->mii.mdio_read = read_mii_word; 5240 tp->mii.mdio_write = write_mii_word; 5241 tp->mii.phy_id_mask = 0x3f; 5242 tp->mii.reg_num_mask = 0x1f; 5243 tp->mii.phy_id = R8152_PHY_ID; 5244 5245 tp->autoneg = AUTONEG_ENABLE; 5246 tp->speed = tp->mii.supports_gmii ? SPEED_1000 : SPEED_100; 5247 tp->duplex = DUPLEX_FULL; 5248 5249 intf->needs_remote_wakeup = 1; 5250 5251 tp->rtl_ops.init(tp); 5252 queue_delayed_work(system_long_wq, &tp->hw_phy_work, 0); 5253 set_ethernet_addr(tp); 5254 5255 usb_set_intfdata(intf, tp); 5256 netif_napi_add(netdev, &tp->napi, r8152_poll, RTL8152_NAPI_WEIGHT); 5257 5258 ret = register_netdev(netdev); 5259 if (ret != 0) { 5260 netif_err(tp, probe, netdev, "couldn't register the device\n"); 5261 goto out1; 5262 } 5263 5264 if (!rtl_can_wakeup(tp)) 5265 __rtl_set_wol(tp, 0); 5266 5267 tp->saved_wolopts = __rtl_get_wol(tp); 5268 if (tp->saved_wolopts) 5269 device_set_wakeup_enable(&udev->dev, true); 5270 else 5271 device_set_wakeup_enable(&udev->dev, false); 5272 5273 netif_info(tp, probe, netdev, "%s\n", DRIVER_VERSION); 5274 5275 return 0; 5276 5277 out1: 5278 netif_napi_del(&tp->napi); 5279 usb_set_intfdata(intf, NULL); 5280 out: 5281 free_netdev(netdev); 5282 return ret; 5283 } 5284 5285 static void rtl8152_disconnect(struct usb_interface *intf) 5286 { 5287 struct r8152 *tp = usb_get_intfdata(intf); 5288 5289 usb_set_intfdata(intf, NULL); 5290 if (tp) { 5291 struct usb_device *udev = tp->udev; 5292 5293 if (udev->state == USB_STATE_NOTATTACHED) 5294 set_bit(RTL8152_UNPLUG, &tp->flags); 5295 5296 netif_napi_del(&tp->napi); 5297 unregister_netdev(tp->netdev); 5298 cancel_delayed_work_sync(&tp->hw_phy_work); 5299 tp->rtl_ops.unload(tp); 5300 free_netdev(tp->netdev); 5301 } 5302 } 5303 5304 #define REALTEK_USB_DEVICE(vend, prod) \ 5305 .match_flags = USB_DEVICE_ID_MATCH_DEVICE | \ 5306 USB_DEVICE_ID_MATCH_INT_CLASS, \ 5307 .idVendor = (vend), \ 5308 .idProduct = (prod), \ 5309 .bInterfaceClass = USB_CLASS_VENDOR_SPEC \ 5310 }, \ 5311 { \ 5312 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO | \ 5313 USB_DEVICE_ID_MATCH_DEVICE, \ 5314 .idVendor = (vend), \ 5315 .idProduct = (prod), \ 5316 .bInterfaceClass = USB_CLASS_COMM, \ 5317 .bInterfaceSubClass = USB_CDC_SUBCLASS_ETHERNET, \ 5318 .bInterfaceProtocol = USB_CDC_PROTO_NONE 5319 5320 /* table of devices that work with this driver */ 5321 static const struct usb_device_id rtl8152_table[] = { 5322 {REALTEK_USB_DEVICE(VENDOR_ID_REALTEK, 0x8050)}, 5323 {REALTEK_USB_DEVICE(VENDOR_ID_REALTEK, 0x8152)}, 5324 {REALTEK_USB_DEVICE(VENDOR_ID_REALTEK, 0x8153)}, 5325 {REALTEK_USB_DEVICE(VENDOR_ID_MICROSOFT, 0x07ab)}, 5326 {REALTEK_USB_DEVICE(VENDOR_ID_MICROSOFT, 0x07c6)}, 5327 {REALTEK_USB_DEVICE(VENDOR_ID_SAMSUNG, 0xa101)}, 5328 {REALTEK_USB_DEVICE(VENDOR_ID_LENOVO, 0x304f)}, 5329 {REALTEK_USB_DEVICE(VENDOR_ID_LENOVO, 0x3062)}, 5330 {REALTEK_USB_DEVICE(VENDOR_ID_LENOVO, 0x3069)}, 5331 {REALTEK_USB_DEVICE(VENDOR_ID_LENOVO, 0x7205)}, 5332 {REALTEK_USB_DEVICE(VENDOR_ID_LENOVO, 0x720c)}, 5333 {REALTEK_USB_DEVICE(VENDOR_ID_LENOVO, 0x7214)}, 5334 {REALTEK_USB_DEVICE(VENDOR_ID_LINKSYS, 0x0041)}, 5335 {REALTEK_USB_DEVICE(VENDOR_ID_NVIDIA, 0x09ff)}, 5336 {REALTEK_USB_DEVICE(VENDOR_ID_TPLINK, 0x0601)}, 5337 {} 5338 }; 5339 5340 MODULE_DEVICE_TABLE(usb, rtl8152_table); 5341 5342 static struct usb_driver rtl8152_driver = { 5343 .name = MODULENAME, 5344 .id_table = rtl8152_table, 5345 .probe = rtl8152_probe, 5346 .disconnect = rtl8152_disconnect, 5347 .suspend = rtl8152_suspend, 5348 .resume = rtl8152_resume, 5349 .reset_resume = rtl8152_reset_resume, 5350 .pre_reset = rtl8152_pre_reset, 5351 .post_reset = rtl8152_post_reset, 5352 .supports_autosuspend = 1, 5353 .disable_hub_initiated_lpm = 1, 5354 }; 5355 5356 module_usb_driver(rtl8152_driver); 5357 5358 MODULE_AUTHOR(DRIVER_AUTHOR); 5359 MODULE_DESCRIPTION(DRIVER_DESC); 5360 MODULE_LICENSE("GPL"); 5361 MODULE_VERSION(DRIVER_VERSION); 5362