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hayeswangac718b62013-05-02 16:01:25 +00001/*
hayeswangc7de7de2014-01-15 10:42:16 +08002 * Copyright (c) 2014 Realtek Semiconductor Corp. All rights reserved.
hayeswangac718b62013-05-02 16:01:25 +00003 *
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
hayeswangac718b62013-05-02 16:01:25 +000010#include <linux/signal.h>
11#include <linux/slab.h>
12#include <linux/module.h>
hayeswangac718b62013-05-02 16:01:25 +000013#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>
hayeswangebc2ec42013-08-14 20:54:38 +080021#include <linux/list.h>
hayeswang5bd23882013-08-14 20:54:39 +080022#include <linux/ip.h>
23#include <linux/ipv6.h>
hayeswang6128d1b2014-03-07 11:04:40 +080024#include <net/ip6_checksum.h>
hayeswang4c4a6b12014-09-25 20:54:00 +080025#include <uapi/linux/mdio.h>
26#include <linux/mdio.h>
hayeswangd9a28c52014-12-04 10:43:11 +080027#include <linux/usb/cdc.h>
hayeswang5ee3c602016-01-07 17:12:17 +080028#include <linux/suspend.h>
hayeswangac718b62013-05-02 16:01:25 +000029
hayeswangd0942472015-09-07 11:57:43 +080030/* Information for net-next */
31#define NETNEXT_VERSION "08"
32
33/* Information for net */
hayeswang5ee3c602016-01-07 17:12:17 +080034#define NET_VERSION "3"
hayeswangd0942472015-09-07 11:57:43 +080035
36#define DRIVER_VERSION "v1." NETNEXT_VERSION "." NET_VERSION
hayeswangac718b62013-05-02 16:01:25 +000037#define DRIVER_AUTHOR "Realtek linux nic maintainers <nic_swsd@realtek.com>"
hayeswang44d942a2014-01-15 10:42:14 +080038#define DRIVER_DESC "Realtek RTL8152/RTL8153 Based USB Ethernet Adapters"
hayeswangac718b62013-05-02 16:01:25 +000039#define MODULENAME "r8152"
40
41#define R8152_PHY_ID 32
42
43#define PLA_IDR 0xc000
44#define PLA_RCR 0xc010
45#define PLA_RMS 0xc016
46#define PLA_RXFIFO_CTRL0 0xc0a0
47#define PLA_RXFIFO_CTRL1 0xc0a4
48#define PLA_RXFIFO_CTRL2 0xc0a8
hayeswang65bab842015-02-12 16:20:46 +080049#define PLA_DMY_REG0 0xc0b0
hayeswangac718b62013-05-02 16:01:25 +000050#define PLA_FMC 0xc0b4
51#define PLA_CFG_WOL 0xc0b6
hayeswang43779f82014-01-02 11:25:10 +080052#define PLA_TEREDO_CFG 0xc0bc
hayeswangac718b62013-05-02 16:01:25 +000053#define PLA_MAR 0xcd00
hayeswang43779f82014-01-02 11:25:10 +080054#define PLA_BACKUP 0xd000
hayeswangac718b62013-05-02 16:01:25 +000055#define PAL_BDC_CR 0xd1a0
hayeswang43779f82014-01-02 11:25:10 +080056#define PLA_TEREDO_TIMER 0xd2cc
57#define PLA_REALWOW_TIMER 0xd2e8
hayeswangac718b62013-05-02 16:01:25 +000058#define PLA_LEDSEL 0xdd90
59#define PLA_LED_FEATURE 0xdd92
60#define PLA_PHYAR 0xde00
hayeswang43779f82014-01-02 11:25:10 +080061#define PLA_BOOT_CTRL 0xe004
hayeswangac718b62013-05-02 16:01:25 +000062#define PLA_GPHY_INTR_IMR 0xe022
63#define PLA_EEE_CR 0xe040
64#define PLA_EEEP_CR 0xe080
65#define PLA_MAC_PWR_CTRL 0xe0c0
hayeswang43779f82014-01-02 11:25:10 +080066#define PLA_MAC_PWR_CTRL2 0xe0ca
67#define PLA_MAC_PWR_CTRL3 0xe0cc
68#define PLA_MAC_PWR_CTRL4 0xe0ce
69#define PLA_WDT6_CTRL 0xe428
hayeswangac718b62013-05-02 16:01:25 +000070#define PLA_TCR0 0xe610
71#define PLA_TCR1 0xe612
hayeswang69b4b7a2014-07-10 10:58:54 +080072#define PLA_MTPS 0xe615
hayeswangac718b62013-05-02 16:01:25 +000073#define PLA_TXFIFO_CTRL 0xe618
hayeswang4f1d4d52014-03-11 16:24:19 +080074#define PLA_RSTTALLY 0xe800
hayeswangac718b62013-05-02 16:01:25 +000075#define PLA_CR 0xe813
76#define PLA_CRWECR 0xe81c
hayeswang21ff2e82014-02-18 21:49:06 +080077#define PLA_CONFIG12 0xe81e /* CONFIG1, CONFIG2 */
78#define PLA_CONFIG34 0xe820 /* CONFIG3, CONFIG4 */
hayeswangac718b62013-05-02 16:01:25 +000079#define PLA_CONFIG5 0xe822
80#define PLA_PHY_PWR 0xe84c
81#define PLA_OOB_CTRL 0xe84f
82#define PLA_CPCR 0xe854
83#define PLA_MISC_0 0xe858
84#define PLA_MISC_1 0xe85a
85#define PLA_OCP_GPHY_BASE 0xe86c
hayeswang4f1d4d52014-03-11 16:24:19 +080086#define PLA_TALLYCNT 0xe890
hayeswangac718b62013-05-02 16:01:25 +000087#define PLA_SFF_STS_7 0xe8de
88#define PLA_PHYSTATUS 0xe908
89#define PLA_BP_BA 0xfc26
90#define PLA_BP_0 0xfc28
91#define PLA_BP_1 0xfc2a
92#define PLA_BP_2 0xfc2c
93#define PLA_BP_3 0xfc2e
94#define PLA_BP_4 0xfc30
95#define PLA_BP_5 0xfc32
96#define PLA_BP_6 0xfc34
97#define PLA_BP_7 0xfc36
hayeswang43779f82014-01-02 11:25:10 +080098#define PLA_BP_EN 0xfc38
hayeswangac718b62013-05-02 16:01:25 +000099
hayeswang65bab842015-02-12 16:20:46 +0800100#define USB_USB2PHY 0xb41e
101#define USB_SSPHYLINK2 0xb428
hayeswang43779f82014-01-02 11:25:10 +0800102#define USB_U2P3_CTRL 0xb460
hayeswang65bab842015-02-12 16:20:46 +0800103#define USB_CSR_DUMMY1 0xb464
104#define USB_CSR_DUMMY2 0xb466
hayeswangac718b62013-05-02 16:01:25 +0000105#define USB_DEV_STAT 0xb808
hayeswang65bab842015-02-12 16:20:46 +0800106#define USB_CONNECT_TIMER 0xcbf8
107#define USB_BURST_SIZE 0xcfc0
hayeswangac718b62013-05-02 16:01:25 +0000108#define USB_USB_CTRL 0xd406
109#define USB_PHY_CTRL 0xd408
110#define USB_TX_AGG 0xd40a
111#define USB_RX_BUF_TH 0xd40c
112#define USB_USB_TIMER 0xd428
hayeswang464ec102015-02-12 14:33:46 +0800113#define USB_RX_EARLY_TIMEOUT 0xd42c
114#define USB_RX_EARLY_SIZE 0xd42e
hayeswangac718b62013-05-02 16:01:25 +0000115#define USB_PM_CTRL_STATUS 0xd432
116#define USB_TX_DMA 0xd434
hayeswang43779f82014-01-02 11:25:10 +0800117#define USB_TOLERANCE 0xd490
118#define USB_LPM_CTRL 0xd41a
hayeswangac718b62013-05-02 16:01:25 +0000119#define USB_UPS_CTRL 0xd800
hayeswang43779f82014-01-02 11:25:10 +0800120#define USB_MISC_0 0xd81a
121#define USB_POWER_CUT 0xd80a
122#define USB_AFE_CTRL2 0xd824
123#define USB_WDT11_CTRL 0xe43c
hayeswangac718b62013-05-02 16:01:25 +0000124#define USB_BP_BA 0xfc26
125#define USB_BP_0 0xfc28
126#define USB_BP_1 0xfc2a
127#define USB_BP_2 0xfc2c
128#define USB_BP_3 0xfc2e
129#define USB_BP_4 0xfc30
130#define USB_BP_5 0xfc32
131#define USB_BP_6 0xfc34
132#define USB_BP_7 0xfc36
hayeswang43779f82014-01-02 11:25:10 +0800133#define USB_BP_EN 0xfc38
hayeswangac718b62013-05-02 16:01:25 +0000134
135/* OCP Registers */
136#define OCP_ALDPS_CONFIG 0x2010
137#define OCP_EEE_CONFIG1 0x2080
138#define OCP_EEE_CONFIG2 0x2092
139#define OCP_EEE_CONFIG3 0x2094
hayeswangac244d32014-01-02 11:22:40 +0800140#define OCP_BASE_MII 0xa400
hayeswangac718b62013-05-02 16:01:25 +0000141#define OCP_EEE_AR 0xa41a
142#define OCP_EEE_DATA 0xa41c
hayeswang43779f82014-01-02 11:25:10 +0800143#define OCP_PHY_STATUS 0xa420
144#define OCP_POWER_CFG 0xa430
145#define OCP_EEE_CFG 0xa432
146#define OCP_SRAM_ADDR 0xa436
147#define OCP_SRAM_DATA 0xa438
148#define OCP_DOWN_SPEED 0xa442
hayeswangdf35d282014-09-25 20:54:02 +0800149#define OCP_EEE_ABLE 0xa5c4
hayeswang4c4a6b12014-09-25 20:54:00 +0800150#define OCP_EEE_ADV 0xa5d0
hayeswangdf35d282014-09-25 20:54:02 +0800151#define OCP_EEE_LPABLE 0xa5d2
hayeswang2dd49e02015-09-07 11:57:44 +0800152#define OCP_PHY_STATE 0xa708 /* nway state for 8153 */
hayeswang43779f82014-01-02 11:25:10 +0800153#define OCP_ADC_CFG 0xbc06
154
155/* SRAM Register */
156#define SRAM_LPF_CFG 0x8012
157#define SRAM_10M_AMP1 0x8080
158#define SRAM_10M_AMP2 0x8082
159#define SRAM_IMPEDANCE 0x8084
hayeswangac718b62013-05-02 16:01:25 +0000160
161/* PLA_RCR */
162#define RCR_AAP 0x00000001
163#define RCR_APM 0x00000002
164#define RCR_AM 0x00000004
165#define RCR_AB 0x00000008
166#define RCR_ACPT_ALL (RCR_AAP | RCR_APM | RCR_AM | RCR_AB)
167
168/* PLA_RXFIFO_CTRL0 */
169#define RXFIFO_THR1_NORMAL 0x00080002
170#define RXFIFO_THR1_OOB 0x01800003
171
172/* PLA_RXFIFO_CTRL1 */
173#define RXFIFO_THR2_FULL 0x00000060
174#define RXFIFO_THR2_HIGH 0x00000038
175#define RXFIFO_THR2_OOB 0x0000004a
hayeswang43779f82014-01-02 11:25:10 +0800176#define RXFIFO_THR2_NORMAL 0x00a0
hayeswangac718b62013-05-02 16:01:25 +0000177
178/* PLA_RXFIFO_CTRL2 */
179#define RXFIFO_THR3_FULL 0x00000078
180#define RXFIFO_THR3_HIGH 0x00000048
181#define RXFIFO_THR3_OOB 0x0000005a
hayeswang43779f82014-01-02 11:25:10 +0800182#define RXFIFO_THR3_NORMAL 0x0110
hayeswangac718b62013-05-02 16:01:25 +0000183
184/* PLA_TXFIFO_CTRL */
185#define TXFIFO_THR_NORMAL 0x00400008
hayeswang43779f82014-01-02 11:25:10 +0800186#define TXFIFO_THR_NORMAL2 0x01000008
hayeswangac718b62013-05-02 16:01:25 +0000187
hayeswang65bab842015-02-12 16:20:46 +0800188/* PLA_DMY_REG0 */
189#define ECM_ALDPS 0x0002
190
hayeswangac718b62013-05-02 16:01:25 +0000191/* PLA_FMC */
192#define FMC_FCR_MCU_EN 0x0001
193
194/* PLA_EEEP_CR */
195#define EEEP_CR_EEEP_TX 0x0002
196
hayeswang43779f82014-01-02 11:25:10 +0800197/* PLA_WDT6_CTRL */
198#define WDT6_SET_MODE 0x0010
199
hayeswangac718b62013-05-02 16:01:25 +0000200/* PLA_TCR0 */
201#define TCR0_TX_EMPTY 0x0800
202#define TCR0_AUTO_FIFO 0x0080
203
204/* PLA_TCR1 */
205#define VERSION_MASK 0x7cf0
206
hayeswang69b4b7a2014-07-10 10:58:54 +0800207/* PLA_MTPS */
208#define MTPS_JUMBO (12 * 1024 / 64)
209#define MTPS_DEFAULT (6 * 1024 / 64)
210
hayeswang4f1d4d52014-03-11 16:24:19 +0800211/* PLA_RSTTALLY */
212#define TALLY_RESET 0x0001
213
hayeswangac718b62013-05-02 16:01:25 +0000214/* PLA_CR */
215#define CR_RST 0x10
216#define CR_RE 0x08
217#define CR_TE 0x04
218
219/* PLA_CRWECR */
220#define CRWECR_NORAML 0x00
221#define CRWECR_CONFIG 0xc0
222
223/* PLA_OOB_CTRL */
224#define NOW_IS_OOB 0x80
225#define TXFIFO_EMPTY 0x20
226#define RXFIFO_EMPTY 0x10
227#define LINK_LIST_READY 0x02
228#define DIS_MCU_CLROOB 0x01
229#define FIFO_EMPTY (TXFIFO_EMPTY | RXFIFO_EMPTY)
230
231/* PLA_MISC_1 */
232#define RXDY_GATED_EN 0x0008
233
234/* PLA_SFF_STS_7 */
235#define RE_INIT_LL 0x8000
236#define MCU_BORW_EN 0x4000
237
238/* PLA_CPCR */
239#define CPCR_RX_VLAN 0x0040
240
241/* PLA_CFG_WOL */
242#define MAGIC_EN 0x0001
243
hayeswang43779f82014-01-02 11:25:10 +0800244/* PLA_TEREDO_CFG */
245#define TEREDO_SEL 0x8000
246#define TEREDO_WAKE_MASK 0x7f00
247#define TEREDO_RS_EVENT_MASK 0x00fe
248#define OOB_TEREDO_EN 0x0001
249
hayeswangac718b62013-05-02 16:01:25 +0000250/* PAL_BDC_CR */
251#define ALDPS_PROXY_MODE 0x0001
252
hayeswang21ff2e82014-02-18 21:49:06 +0800253/* PLA_CONFIG34 */
254#define LINK_ON_WAKE_EN 0x0010
255#define LINK_OFF_WAKE_EN 0x0008
256
hayeswangac718b62013-05-02 16:01:25 +0000257/* PLA_CONFIG5 */
hayeswang21ff2e82014-02-18 21:49:06 +0800258#define BWF_EN 0x0040
259#define MWF_EN 0x0020
260#define UWF_EN 0x0010
hayeswangac718b62013-05-02 16:01:25 +0000261#define LAN_WAKE_EN 0x0002
262
263/* PLA_LED_FEATURE */
264#define LED_MODE_MASK 0x0700
265
266/* PLA_PHY_PWR */
267#define TX_10M_IDLE_EN 0x0080
268#define PFM_PWM_SWITCH 0x0040
269
270/* PLA_MAC_PWR_CTRL */
271#define D3_CLK_GATED_EN 0x00004000
272#define MCU_CLK_RATIO 0x07010f07
273#define MCU_CLK_RATIO_MASK 0x0f0f0f0f
hayeswang43779f82014-01-02 11:25:10 +0800274#define ALDPS_SPDWN_RATIO 0x0f87
275
276/* PLA_MAC_PWR_CTRL2 */
277#define EEE_SPDWN_RATIO 0x8007
278
279/* PLA_MAC_PWR_CTRL3 */
280#define PKT_AVAIL_SPDWN_EN 0x0100
281#define SUSPEND_SPDWN_EN 0x0004
282#define U1U2_SPDWN_EN 0x0002
283#define L1_SPDWN_EN 0x0001
284
285/* PLA_MAC_PWR_CTRL4 */
286#define PWRSAVE_SPDWN_EN 0x1000
287#define RXDV_SPDWN_EN 0x0800
288#define TX10MIDLE_EN 0x0100
289#define TP100_SPDWN_EN 0x0020
290#define TP500_SPDWN_EN 0x0010
291#define TP1000_SPDWN_EN 0x0008
292#define EEE_SPDWN_EN 0x0001
hayeswangac718b62013-05-02 16:01:25 +0000293
294/* PLA_GPHY_INTR_IMR */
295#define GPHY_STS_MSK 0x0001
296#define SPEED_DOWN_MSK 0x0002
297#define SPDWN_RXDV_MSK 0x0004
298#define SPDWN_LINKCHG_MSK 0x0008
299
300/* PLA_PHYAR */
301#define PHYAR_FLAG 0x80000000
302
303/* PLA_EEE_CR */
304#define EEE_RX_EN 0x0001
305#define EEE_TX_EN 0x0002
306
hayeswang43779f82014-01-02 11:25:10 +0800307/* PLA_BOOT_CTRL */
308#define AUTOLOAD_DONE 0x0002
309
hayeswang65bab842015-02-12 16:20:46 +0800310/* USB_USB2PHY */
311#define USB2PHY_SUSPEND 0x0001
312#define USB2PHY_L1 0x0002
313
314/* USB_SSPHYLINK2 */
315#define pwd_dn_scale_mask 0x3ffe
316#define pwd_dn_scale(x) ((x) << 1)
317
318/* USB_CSR_DUMMY1 */
319#define DYNAMIC_BURST 0x0001
320
321/* USB_CSR_DUMMY2 */
322#define EP4_FULL_FC 0x0001
323
hayeswangac718b62013-05-02 16:01:25 +0000324/* USB_DEV_STAT */
325#define STAT_SPEED_MASK 0x0006
326#define STAT_SPEED_HIGH 0x0000
hayeswanga3cc4652014-07-24 16:37:43 +0800327#define STAT_SPEED_FULL 0x0002
hayeswangac718b62013-05-02 16:01:25 +0000328
329/* USB_TX_AGG */
330#define TX_AGG_MAX_THRESHOLD 0x03
331
332/* USB_RX_BUF_TH */
hayeswang43779f82014-01-02 11:25:10 +0800333#define RX_THR_SUPPER 0x0c350180
hayeswang8e1f51b2014-01-02 11:22:41 +0800334#define RX_THR_HIGH 0x7a120180
hayeswang43779f82014-01-02 11:25:10 +0800335#define RX_THR_SLOW 0xffff0180
hayeswangac718b62013-05-02 16:01:25 +0000336
337/* USB_TX_DMA */
338#define TEST_MODE_DISABLE 0x00000001
339#define TX_SIZE_ADJUST1 0x00000100
340
341/* USB_UPS_CTRL */
342#define POWER_CUT 0x0100
343
344/* USB_PM_CTRL_STATUS */
hayeswang8e1f51b2014-01-02 11:22:41 +0800345#define RESUME_INDICATE 0x0001
hayeswangac718b62013-05-02 16:01:25 +0000346
347/* USB_USB_CTRL */
348#define RX_AGG_DISABLE 0x0010
hayeswange90fba82015-07-31 11:23:39 +0800349#define RX_ZERO_EN 0x0080
hayeswangac718b62013-05-02 16:01:25 +0000350
hayeswang43779f82014-01-02 11:25:10 +0800351/* USB_U2P3_CTRL */
352#define U2P3_ENABLE 0x0001
353
354/* USB_POWER_CUT */
355#define PWR_EN 0x0001
356#define PHASE2_EN 0x0008
357
358/* USB_MISC_0 */
359#define PCUT_STATUS 0x0001
360
hayeswang464ec102015-02-12 14:33:46 +0800361/* USB_RX_EARLY_TIMEOUT */
362#define COALESCE_SUPER 85000U
363#define COALESCE_HIGH 250000U
364#define COALESCE_SLOW 524280U
hayeswang43779f82014-01-02 11:25:10 +0800365
366/* USB_WDT11_CTRL */
367#define TIMER11_EN 0x0001
368
369/* USB_LPM_CTRL */
hayeswang65bab842015-02-12 16:20:46 +0800370/* bit 4 ~ 5: fifo empty boundary */
371#define FIFO_EMPTY_1FB 0x30 /* 0x1fb * 64 = 32448 bytes */
372/* bit 2 ~ 3: LMP timer */
hayeswang43779f82014-01-02 11:25:10 +0800373#define LPM_TIMER_MASK 0x0c
374#define LPM_TIMER_500MS 0x04 /* 500 ms */
375#define LPM_TIMER_500US 0x0c /* 500 us */
hayeswang65bab842015-02-12 16:20:46 +0800376#define ROK_EXIT_LPM 0x02
hayeswang43779f82014-01-02 11:25:10 +0800377
378/* USB_AFE_CTRL2 */
379#define SEN_VAL_MASK 0xf800
380#define SEN_VAL_NORMAL 0xa000
381#define SEL_RXIDLE 0x0100
382
hayeswangac718b62013-05-02 16:01:25 +0000383/* OCP_ALDPS_CONFIG */
384#define ENPWRSAVE 0x8000
385#define ENPDNPS 0x0200
386#define LINKENA 0x0100
387#define DIS_SDSAVE 0x0010
388
hayeswang43779f82014-01-02 11:25:10 +0800389/* OCP_PHY_STATUS */
390#define PHY_STAT_MASK 0x0007
391#define PHY_STAT_LAN_ON 3
392#define PHY_STAT_PWRDN 5
393
394/* OCP_POWER_CFG */
395#define EEE_CLKDIV_EN 0x8000
396#define EN_ALDPS 0x0004
397#define EN_10M_PLLOFF 0x0001
398
hayeswangac718b62013-05-02 16:01:25 +0000399/* OCP_EEE_CONFIG1 */
400#define RG_TXLPI_MSK_HFDUP 0x8000
401#define RG_MATCLR_EN 0x4000
402#define EEE_10_CAP 0x2000
403#define EEE_NWAY_EN 0x1000
404#define TX_QUIET_EN 0x0200
405#define RX_QUIET_EN 0x0100
hayeswangd24f6132014-09-25 20:54:01 +0800406#define sd_rise_time_mask 0x0070
hayeswang4c4a6b12014-09-25 20:54:00 +0800407#define sd_rise_time(x) (min(x, 7) << 4) /* bit 4 ~ 6 */
hayeswangac718b62013-05-02 16:01:25 +0000408#define RG_RXLPI_MSK_HFDUP 0x0008
409#define SDFALLTIME 0x0007 /* bit 0 ~ 2 */
410
411/* OCP_EEE_CONFIG2 */
412#define RG_LPIHYS_NUM 0x7000 /* bit 12 ~ 15 */
413#define RG_DACQUIET_EN 0x0400
414#define RG_LDVQUIET_EN 0x0200
415#define RG_CKRSEL 0x0020
416#define RG_EEEPRG_EN 0x0010
417
418/* OCP_EEE_CONFIG3 */
hayeswangd24f6132014-09-25 20:54:01 +0800419#define fast_snr_mask 0xff80
hayeswang4c4a6b12014-09-25 20:54:00 +0800420#define fast_snr(x) (min(x, 0x1ff) << 7) /* bit 7 ~ 15 */
hayeswangac718b62013-05-02 16:01:25 +0000421#define RG_LFS_SEL 0x0060 /* bit 6 ~ 5 */
422#define MSK_PH 0x0006 /* bit 0 ~ 3 */
423
424/* OCP_EEE_AR */
425/* bit[15:14] function */
426#define FUN_ADDR 0x0000
427#define FUN_DATA 0x4000
428/* bit[4:0] device addr */
hayeswangac718b62013-05-02 16:01:25 +0000429
hayeswang43779f82014-01-02 11:25:10 +0800430/* OCP_EEE_CFG */
431#define CTAP_SHORT_EN 0x0040
432#define EEE10_EN 0x0010
433
434/* OCP_DOWN_SPEED */
435#define EN_10M_BGOFF 0x0080
436
hayeswang2dd49e02015-09-07 11:57:44 +0800437/* OCP_PHY_STATE */
438#define TXDIS_STATE 0x01
439#define ABD_STATE 0x02
440
hayeswang43779f82014-01-02 11:25:10 +0800441/* OCP_ADC_CFG */
442#define CKADSEL_L 0x0100
443#define ADC_EN 0x0080
444#define EN_EMI_L 0x0040
445
446/* SRAM_LPF_CFG */
447#define LPF_AUTO_TUNE 0x8000
448
449/* SRAM_10M_AMP1 */
450#define GDAC_IB_UPALL 0x0008
451
452/* SRAM_10M_AMP2 */
453#define AMP_DN 0x0200
454
455/* SRAM_IMPEDANCE */
456#define RX_DRIVING_MASK 0x6000
457
hayeswangac718b62013-05-02 16:01:25 +0000458enum rtl_register_content {
hayeswang43779f82014-01-02 11:25:10 +0800459 _1000bps = 0x10,
hayeswangac718b62013-05-02 16:01:25 +0000460 _100bps = 0x08,
461 _10bps = 0x04,
462 LINK_STATUS = 0x02,
463 FULL_DUP = 0x01,
464};
465
hayeswang1764bcd2014-08-28 10:24:18 +0800466#define RTL8152_MAX_TX 4
hayeswangebc2ec42013-08-14 20:54:38 +0800467#define RTL8152_MAX_RX 10
hayeswang40a82912013-08-14 20:54:40 +0800468#define INTBUFSIZE 2
hayeswang8e1f51b2014-01-02 11:22:41 +0800469#define CRC_SIZE 4
470#define TX_ALIGN 4
471#define RX_ALIGN 8
hayeswang40a82912013-08-14 20:54:40 +0800472
473#define INTR_LINK 0x0004
hayeswangebc2ec42013-08-14 20:54:38 +0800474
hayeswangac718b62013-05-02 16:01:25 +0000475#define RTL8152_REQT_READ 0xc0
476#define RTL8152_REQT_WRITE 0x40
477#define RTL8152_REQ_GET_REGS 0x05
478#define RTL8152_REQ_SET_REGS 0x05
479
480#define BYTE_EN_DWORD 0xff
481#define BYTE_EN_WORD 0x33
482#define BYTE_EN_BYTE 0x11
483#define BYTE_EN_SIX_BYTES 0x3f
484#define BYTE_EN_START_MASK 0x0f
485#define BYTE_EN_END_MASK 0xf0
486
hayeswang69b4b7a2014-07-10 10:58:54 +0800487#define RTL8153_MAX_PACKET 9216 /* 9K */
488#define RTL8153_MAX_MTU (RTL8153_MAX_PACKET - VLAN_ETH_HLEN - VLAN_HLEN)
hayeswangac718b62013-05-02 16:01:25 +0000489#define RTL8152_RMS (VLAN_ETH_FRAME_LEN + VLAN_HLEN)
hayeswang69b4b7a2014-07-10 10:58:54 +0800490#define RTL8153_RMS RTL8153_MAX_PACKET
hayeswangb8125402014-07-03 11:55:48 +0800491#define RTL8152_TX_TIMEOUT (5 * HZ)
hayeswangd823ab62015-01-12 12:06:23 +0800492#define RTL8152_NAPI_WEIGHT 64
hayeswangac718b62013-05-02 16:01:25 +0000493
494/* rtl8152 flags */
495enum rtl8152_flags {
496 RTL8152_UNPLUG = 0,
hayeswangac718b62013-05-02 16:01:25 +0000497 RTL8152_SET_RX_MODE,
hayeswang40a82912013-08-14 20:54:40 +0800498 WORK_ENABLE,
499 RTL8152_LINK_CHG,
hayeswang9a4be1b2014-02-18 21:49:07 +0800500 SELECTIVE_SUSPEND,
hayeswangaa66a5f2014-02-18 21:49:04 +0800501 PHY_RESET,
hayeswangd823ab62015-01-12 12:06:23 +0800502 SCHEDULE_NAPI,
hayeswangac718b62013-05-02 16:01:25 +0000503};
504
505/* Define these values to match your device */
506#define VENDOR_ID_REALTEK 0x0bda
hayeswang43779f82014-01-02 11:25:10 +0800507#define VENDOR_ID_SAMSUNG 0x04e8
Christian Hesse347eec32015-03-31 14:10:07 +0200508#define VENDOR_ID_LENOVO 0x17ef
Zheng Liud065c3c2015-07-07 13:54:12 -0700509#define VENDOR_ID_NVIDIA 0x0955
hayeswangac718b62013-05-02 16:01:25 +0000510
511#define MCU_TYPE_PLA 0x0100
512#define MCU_TYPE_USB 0x0000
513
hayeswang4f1d4d52014-03-11 16:24:19 +0800514struct tally_counter {
515 __le64 tx_packets;
516 __le64 rx_packets;
517 __le64 tx_errors;
518 __le32 rx_errors;
519 __le16 rx_missed;
520 __le16 align_errors;
521 __le32 tx_one_collision;
522 __le32 tx_multi_collision;
523 __le64 rx_unicast;
524 __le64 rx_broadcast;
525 __le32 rx_multicast;
526 __le16 tx_aborted;
hayeswangf37119c2014-10-28 14:05:51 +0800527 __le16 tx_underrun;
hayeswang4f1d4d52014-03-11 16:24:19 +0800528};
529
hayeswangac718b62013-05-02 16:01:25 +0000530struct rx_desc {
hayeswang500b6d72013-11-20 17:30:57 +0800531 __le32 opts1;
hayeswangac718b62013-05-02 16:01:25 +0000532#define RX_LEN_MASK 0x7fff
hayeswang565cab02014-03-07 11:04:38 +0800533
hayeswang500b6d72013-11-20 17:30:57 +0800534 __le32 opts2;
hayeswangf5aaaa62015-02-06 11:30:51 +0800535#define RD_UDP_CS BIT(23)
536#define RD_TCP_CS BIT(22)
537#define RD_IPV6_CS BIT(20)
538#define RD_IPV4_CS BIT(19)
hayeswang565cab02014-03-07 11:04:38 +0800539
hayeswang500b6d72013-11-20 17:30:57 +0800540 __le32 opts3;
hayeswangf5aaaa62015-02-06 11:30:51 +0800541#define IPF BIT(23) /* IP checksum fail */
542#define UDPF BIT(22) /* UDP checksum fail */
543#define TCPF BIT(21) /* TCP checksum fail */
544#define RX_VLAN_TAG BIT(16)
hayeswang565cab02014-03-07 11:04:38 +0800545
hayeswang500b6d72013-11-20 17:30:57 +0800546 __le32 opts4;
547 __le32 opts5;
548 __le32 opts6;
hayeswangac718b62013-05-02 16:01:25 +0000549};
550
551struct tx_desc {
hayeswang500b6d72013-11-20 17:30:57 +0800552 __le32 opts1;
hayeswangf5aaaa62015-02-06 11:30:51 +0800553#define TX_FS BIT(31) /* First segment of a packet */
554#define TX_LS BIT(30) /* Final segment of a packet */
555#define GTSENDV4 BIT(28)
556#define GTSENDV6 BIT(27)
hayeswang60c89072014-03-07 11:04:39 +0800557#define GTTCPHO_SHIFT 18
hayeswang6128d1b2014-03-07 11:04:40 +0800558#define GTTCPHO_MAX 0x7fU
hayeswang60c89072014-03-07 11:04:39 +0800559#define TX_LEN_MAX 0x3ffffU
hayeswang5bd23882013-08-14 20:54:39 +0800560
hayeswang500b6d72013-11-20 17:30:57 +0800561 __le32 opts2;
hayeswangf5aaaa62015-02-06 11:30:51 +0800562#define UDP_CS BIT(31) /* Calculate UDP/IP checksum */
563#define TCP_CS BIT(30) /* Calculate TCP/IP checksum */
564#define IPV4_CS BIT(29) /* Calculate IPv4 checksum */
565#define IPV6_CS BIT(28) /* Calculate IPv6 checksum */
hayeswang60c89072014-03-07 11:04:39 +0800566#define MSS_SHIFT 17
567#define MSS_MAX 0x7ffU
568#define TCPHO_SHIFT 17
hayeswang6128d1b2014-03-07 11:04:40 +0800569#define TCPHO_MAX 0x7ffU
hayeswangf5aaaa62015-02-06 11:30:51 +0800570#define TX_VLAN_TAG BIT(16)
hayeswangac718b62013-05-02 16:01:25 +0000571};
572
hayeswangdff4e8a2013-08-16 16:09:33 +0800573struct r8152;
574
hayeswangebc2ec42013-08-14 20:54:38 +0800575struct rx_agg {
576 struct list_head list;
577 struct urb *urb;
hayeswangdff4e8a2013-08-16 16:09:33 +0800578 struct r8152 *context;
hayeswangebc2ec42013-08-14 20:54:38 +0800579 void *buffer;
580 void *head;
581};
582
583struct tx_agg {
584 struct list_head list;
585 struct urb *urb;
hayeswangdff4e8a2013-08-16 16:09:33 +0800586 struct r8152 *context;
hayeswangebc2ec42013-08-14 20:54:38 +0800587 void *buffer;
588 void *head;
589 u32 skb_num;
590 u32 skb_len;
591};
592
hayeswangac718b62013-05-02 16:01:25 +0000593struct r8152 {
594 unsigned long flags;
595 struct usb_device *udev;
hayeswangd823ab62015-01-12 12:06:23 +0800596 struct napi_struct napi;
hayeswang40a82912013-08-14 20:54:40 +0800597 struct usb_interface *intf;
hayeswangac718b62013-05-02 16:01:25 +0000598 struct net_device *netdev;
hayeswang40a82912013-08-14 20:54:40 +0800599 struct urb *intr_urb;
hayeswangebc2ec42013-08-14 20:54:38 +0800600 struct tx_agg tx_info[RTL8152_MAX_TX];
601 struct rx_agg rx_info[RTL8152_MAX_RX];
602 struct list_head rx_done, tx_free;
hayeswangd823ab62015-01-12 12:06:23 +0800603 struct sk_buff_head tx_queue, rx_queue;
hayeswangebc2ec42013-08-14 20:54:38 +0800604 spinlock_t rx_lock, tx_lock;
hayeswanga028a9e2016-06-13 17:49:36 +0800605 struct delayed_work schedule, hw_phy_work;
hayeswangac718b62013-05-02 16:01:25 +0000606 struct mii_if_info mii;
hayeswangb5403272014-10-09 18:00:26 +0800607 struct mutex control; /* use for hw setting */
hayeswang5ee3c602016-01-07 17:12:17 +0800608#ifdef CONFIG_PM_SLEEP
609 struct notifier_block pm_notifier;
610#endif
hayeswangc81229c2014-01-02 11:22:42 +0800611
612 struct rtl_ops {
613 void (*init)(struct r8152 *);
614 int (*enable)(struct r8152 *);
615 void (*disable)(struct r8152 *);
hayeswang7e9da482014-02-18 21:49:05 +0800616 void (*up)(struct r8152 *);
hayeswangc81229c2014-01-02 11:22:42 +0800617 void (*down)(struct r8152 *);
618 void (*unload)(struct r8152 *);
hayeswangdf35d282014-09-25 20:54:02 +0800619 int (*eee_get)(struct r8152 *, struct ethtool_eee *);
620 int (*eee_set)(struct r8152 *, struct ethtool_eee *);
hayeswang2dd49e02015-09-07 11:57:44 +0800621 bool (*in_nway)(struct r8152 *);
hayeswanga028a9e2016-06-13 17:49:36 +0800622 void (*hw_phy_cfg)(struct r8152 *);
hayeswangc81229c2014-01-02 11:22:42 +0800623 } rtl_ops;
624
hayeswang40a82912013-08-14 20:54:40 +0800625 int intr_interval;
hayeswang21ff2e82014-02-18 21:49:06 +0800626 u32 saved_wolopts;
hayeswangac718b62013-05-02 16:01:25 +0000627 u32 msg_enable;
hayeswangdd1b1192013-11-20 17:30:56 +0800628 u32 tx_qlen;
hayeswang464ec102015-02-12 14:33:46 +0800629 u32 coalesce;
hayeswangac718b62013-05-02 16:01:25 +0000630 u16 ocp_base;
hayeswangaa7e26b2016-06-13 17:49:38 +0800631 u16 speed;
hayeswang40a82912013-08-14 20:54:40 +0800632 u8 *intr_buff;
hayeswangac718b62013-05-02 16:01:25 +0000633 u8 version;
hayeswangaa7e26b2016-06-13 17:49:38 +0800634 u8 duplex;
635 u8 autoneg;
hayeswangac718b62013-05-02 16:01:25 +0000636};
637
638enum rtl_version {
639 RTL_VER_UNKNOWN = 0,
640 RTL_VER_01,
hayeswang43779f82014-01-02 11:25:10 +0800641 RTL_VER_02,
642 RTL_VER_03,
643 RTL_VER_04,
644 RTL_VER_05,
hayeswangfb02eb42015-07-22 15:27:41 +0800645 RTL_VER_06,
hayeswang43779f82014-01-02 11:25:10 +0800646 RTL_VER_MAX
hayeswangac718b62013-05-02 16:01:25 +0000647};
648
hayeswang60c89072014-03-07 11:04:39 +0800649enum tx_csum_stat {
650 TX_CSUM_SUCCESS = 0,
651 TX_CSUM_TSO,
652 TX_CSUM_NONE
653};
654
hayeswangac718b62013-05-02 16:01:25 +0000655/* Maximum number of multicast addresses to filter (vs. Rx-all-multicast).
656 * The RTL chips use a 64 element hash table based on the Ethernet CRC.
657 */
658static const int multicast_filter_limit = 32;
hayeswang52aec122014-09-02 10:27:52 +0800659static unsigned int agg_buf_sz = 16384;
hayeswangac718b62013-05-02 16:01:25 +0000660
hayeswang52aec122014-09-02 10:27:52 +0800661#define RTL_LIMITED_TSO_SIZE (agg_buf_sz - sizeof(struct tx_desc) - \
hayeswang60c89072014-03-07 11:04:39 +0800662 VLAN_ETH_HLEN - VLAN_HLEN)
663
hayeswangac718b62013-05-02 16:01:25 +0000664static
665int get_registers(struct r8152 *tp, u16 value, u16 index, u16 size, void *data)
666{
hayeswang31787f52013-07-31 17:21:25 +0800667 int ret;
668 void *tmp;
669
670 tmp = kmalloc(size, GFP_KERNEL);
671 if (!tmp)
672 return -ENOMEM;
673
674 ret = usb_control_msg(tp->udev, usb_rcvctrlpipe(tp->udev, 0),
hayeswangb209af92014-08-25 15:53:00 +0800675 RTL8152_REQ_GET_REGS, RTL8152_REQT_READ,
676 value, index, tmp, size, 500);
hayeswang31787f52013-07-31 17:21:25 +0800677
678 memcpy(data, tmp, size);
679 kfree(tmp);
680
681 return ret;
hayeswangac718b62013-05-02 16:01:25 +0000682}
683
684static
685int set_registers(struct r8152 *tp, u16 value, u16 index, u16 size, void *data)
686{
hayeswang31787f52013-07-31 17:21:25 +0800687 int ret;
688 void *tmp;
689
Benoit Tainec4438f02014-05-26 17:21:23 +0200690 tmp = kmemdup(data, size, GFP_KERNEL);
hayeswang31787f52013-07-31 17:21:25 +0800691 if (!tmp)
692 return -ENOMEM;
693
hayeswang31787f52013-07-31 17:21:25 +0800694 ret = usb_control_msg(tp->udev, usb_sndctrlpipe(tp->udev, 0),
hayeswangb209af92014-08-25 15:53:00 +0800695 RTL8152_REQ_SET_REGS, RTL8152_REQT_WRITE,
696 value, index, tmp, size, 500);
hayeswang31787f52013-07-31 17:21:25 +0800697
698 kfree(tmp);
hayeswangdb8515e2014-03-06 15:07:16 +0800699
hayeswang31787f52013-07-31 17:21:25 +0800700 return ret;
hayeswangac718b62013-05-02 16:01:25 +0000701}
702
703static int generic_ocp_read(struct r8152 *tp, u16 index, u16 size,
hayeswangb209af92014-08-25 15:53:00 +0800704 void *data, u16 type)
hayeswangac718b62013-05-02 16:01:25 +0000705{
hayeswang45f4a192014-01-06 17:08:41 +0800706 u16 limit = 64;
707 int ret = 0;
hayeswangac718b62013-05-02 16:01:25 +0000708
709 if (test_bit(RTL8152_UNPLUG, &tp->flags))
710 return -ENODEV;
711
712 /* both size and indix must be 4 bytes align */
713 if ((size & 3) || !size || (index & 3) || !data)
714 return -EPERM;
715
716 if ((u32)index + (u32)size > 0xffff)
717 return -EPERM;
718
719 while (size) {
720 if (size > limit) {
721 ret = get_registers(tp, index, type, limit, data);
722 if (ret < 0)
723 break;
724
725 index += limit;
726 data += limit;
727 size -= limit;
728 } else {
729 ret = get_registers(tp, index, type, size, data);
730 if (ret < 0)
731 break;
732
733 index += size;
734 data += size;
735 size = 0;
736 break;
737 }
738 }
739
hayeswang67610492014-10-30 11:46:40 +0800740 if (ret == -ENODEV)
741 set_bit(RTL8152_UNPLUG, &tp->flags);
742
hayeswangac718b62013-05-02 16:01:25 +0000743 return ret;
744}
745
746static int generic_ocp_write(struct r8152 *tp, u16 index, u16 byteen,
hayeswangb209af92014-08-25 15:53:00 +0800747 u16 size, void *data, u16 type)
hayeswangac718b62013-05-02 16:01:25 +0000748{
hayeswang45f4a192014-01-06 17:08:41 +0800749 int ret;
750 u16 byteen_start, byteen_end, byen;
751 u16 limit = 512;
hayeswangac718b62013-05-02 16:01:25 +0000752
753 if (test_bit(RTL8152_UNPLUG, &tp->flags))
754 return -ENODEV;
755
756 /* both size and indix must be 4 bytes align */
757 if ((size & 3) || !size || (index & 3) || !data)
758 return -EPERM;
759
760 if ((u32)index + (u32)size > 0xffff)
761 return -EPERM;
762
763 byteen_start = byteen & BYTE_EN_START_MASK;
764 byteen_end = byteen & BYTE_EN_END_MASK;
765
766 byen = byteen_start | (byteen_start << 4);
767 ret = set_registers(tp, index, type | byen, 4, data);
768 if (ret < 0)
769 goto error1;
770
771 index += 4;
772 data += 4;
773 size -= 4;
774
775 if (size) {
776 size -= 4;
777
778 while (size) {
779 if (size > limit) {
780 ret = set_registers(tp, index,
hayeswangb209af92014-08-25 15:53:00 +0800781 type | BYTE_EN_DWORD,
782 limit, data);
hayeswangac718b62013-05-02 16:01:25 +0000783 if (ret < 0)
784 goto error1;
785
786 index += limit;
787 data += limit;
788 size -= limit;
789 } else {
790 ret = set_registers(tp, index,
hayeswangb209af92014-08-25 15:53:00 +0800791 type | BYTE_EN_DWORD,
792 size, data);
hayeswangac718b62013-05-02 16:01:25 +0000793 if (ret < 0)
794 goto error1;
795
796 index += size;
797 data += size;
798 size = 0;
799 break;
800 }
801 }
802
803 byen = byteen_end | (byteen_end >> 4);
804 ret = set_registers(tp, index, type | byen, 4, data);
805 if (ret < 0)
806 goto error1;
807 }
808
809error1:
hayeswang67610492014-10-30 11:46:40 +0800810 if (ret == -ENODEV)
811 set_bit(RTL8152_UNPLUG, &tp->flags);
812
hayeswangac718b62013-05-02 16:01:25 +0000813 return ret;
814}
815
816static inline
817int pla_ocp_read(struct r8152 *tp, u16 index, u16 size, void *data)
818{
819 return generic_ocp_read(tp, index, size, data, MCU_TYPE_PLA);
820}
821
822static inline
823int pla_ocp_write(struct r8152 *tp, u16 index, u16 byteen, u16 size, void *data)
824{
825 return generic_ocp_write(tp, index, byteen, size, data, MCU_TYPE_PLA);
826}
827
828static inline
829int usb_ocp_read(struct r8152 *tp, u16 index, u16 size, void *data)
830{
831 return generic_ocp_read(tp, index, size, data, MCU_TYPE_USB);
832}
833
834static inline
835int usb_ocp_write(struct r8152 *tp, u16 index, u16 byteen, u16 size, void *data)
836{
837 return generic_ocp_write(tp, index, byteen, size, data, MCU_TYPE_USB);
838}
839
840static u32 ocp_read_dword(struct r8152 *tp, u16 type, u16 index)
841{
hayeswangc8826de2013-07-31 17:21:26 +0800842 __le32 data;
hayeswangac718b62013-05-02 16:01:25 +0000843
hayeswangc8826de2013-07-31 17:21:26 +0800844 generic_ocp_read(tp, index, sizeof(data), &data, type);
hayeswangac718b62013-05-02 16:01:25 +0000845
846 return __le32_to_cpu(data);
847}
848
849static void ocp_write_dword(struct r8152 *tp, u16 type, u16 index, u32 data)
850{
hayeswangc8826de2013-07-31 17:21:26 +0800851 __le32 tmp = __cpu_to_le32(data);
852
853 generic_ocp_write(tp, index, BYTE_EN_DWORD, sizeof(tmp), &tmp, type);
hayeswangac718b62013-05-02 16:01:25 +0000854}
855
856static u16 ocp_read_word(struct r8152 *tp, u16 type, u16 index)
857{
858 u32 data;
hayeswangc8826de2013-07-31 17:21:26 +0800859 __le32 tmp;
hayeswangac718b62013-05-02 16:01:25 +0000860 u8 shift = index & 2;
861
862 index &= ~3;
863
hayeswangc8826de2013-07-31 17:21:26 +0800864 generic_ocp_read(tp, index, sizeof(tmp), &tmp, type);
hayeswangac718b62013-05-02 16:01:25 +0000865
hayeswangc8826de2013-07-31 17:21:26 +0800866 data = __le32_to_cpu(tmp);
hayeswangac718b62013-05-02 16:01:25 +0000867 data >>= (shift * 8);
868 data &= 0xffff;
869
870 return (u16)data;
871}
872
873static void ocp_write_word(struct r8152 *tp, u16 type, u16 index, u32 data)
874{
hayeswangc8826de2013-07-31 17:21:26 +0800875 u32 mask = 0xffff;
876 __le32 tmp;
hayeswangac718b62013-05-02 16:01:25 +0000877 u16 byen = BYTE_EN_WORD;
878 u8 shift = index & 2;
879
880 data &= mask;
881
882 if (index & 2) {
883 byen <<= shift;
884 mask <<= (shift * 8);
885 data <<= (shift * 8);
886 index &= ~3;
887 }
888
hayeswangc8826de2013-07-31 17:21:26 +0800889 tmp = __cpu_to_le32(data);
hayeswangac718b62013-05-02 16:01:25 +0000890
hayeswangc8826de2013-07-31 17:21:26 +0800891 generic_ocp_write(tp, index, byen, sizeof(tmp), &tmp, type);
hayeswangac718b62013-05-02 16:01:25 +0000892}
893
894static u8 ocp_read_byte(struct r8152 *tp, u16 type, u16 index)
895{
896 u32 data;
hayeswangc8826de2013-07-31 17:21:26 +0800897 __le32 tmp;
hayeswangac718b62013-05-02 16:01:25 +0000898 u8 shift = index & 3;
899
900 index &= ~3;
901
hayeswangc8826de2013-07-31 17:21:26 +0800902 generic_ocp_read(tp, index, sizeof(tmp), &tmp, type);
hayeswangac718b62013-05-02 16:01:25 +0000903
hayeswangc8826de2013-07-31 17:21:26 +0800904 data = __le32_to_cpu(tmp);
hayeswangac718b62013-05-02 16:01:25 +0000905 data >>= (shift * 8);
906 data &= 0xff;
907
908 return (u8)data;
909}
910
911static void ocp_write_byte(struct r8152 *tp, u16 type, u16 index, u32 data)
912{
hayeswangc8826de2013-07-31 17:21:26 +0800913 u32 mask = 0xff;
914 __le32 tmp;
hayeswangac718b62013-05-02 16:01:25 +0000915 u16 byen = BYTE_EN_BYTE;
916 u8 shift = index & 3;
917
918 data &= mask;
919
920 if (index & 3) {
921 byen <<= shift;
922 mask <<= (shift * 8);
923 data <<= (shift * 8);
924 index &= ~3;
925 }
926
hayeswangc8826de2013-07-31 17:21:26 +0800927 tmp = __cpu_to_le32(data);
hayeswangac718b62013-05-02 16:01:25 +0000928
hayeswangc8826de2013-07-31 17:21:26 +0800929 generic_ocp_write(tp, index, byen, sizeof(tmp), &tmp, type);
hayeswangac718b62013-05-02 16:01:25 +0000930}
931
hayeswangac244d32014-01-02 11:22:40 +0800932static u16 ocp_reg_read(struct r8152 *tp, u16 addr)
933{
934 u16 ocp_base, ocp_index;
935
936 ocp_base = addr & 0xf000;
937 if (ocp_base != tp->ocp_base) {
938 ocp_write_word(tp, MCU_TYPE_PLA, PLA_OCP_GPHY_BASE, ocp_base);
939 tp->ocp_base = ocp_base;
940 }
941
942 ocp_index = (addr & 0x0fff) | 0xb000;
943 return ocp_read_word(tp, MCU_TYPE_PLA, ocp_index);
944}
945
hayeswange3fe0b12014-01-02 11:22:39 +0800946static void ocp_reg_write(struct r8152 *tp, u16 addr, u16 data)
947{
948 u16 ocp_base, ocp_index;
949
950 ocp_base = addr & 0xf000;
951 if (ocp_base != tp->ocp_base) {
952 ocp_write_word(tp, MCU_TYPE_PLA, PLA_OCP_GPHY_BASE, ocp_base);
953 tp->ocp_base = ocp_base;
954 }
955
956 ocp_index = (addr & 0x0fff) | 0xb000;
957 ocp_write_word(tp, MCU_TYPE_PLA, ocp_index, data);
958}
959
hayeswangac244d32014-01-02 11:22:40 +0800960static inline void r8152_mdio_write(struct r8152 *tp, u32 reg_addr, u32 value)
hayeswangac718b62013-05-02 16:01:25 +0000961{
hayeswangac244d32014-01-02 11:22:40 +0800962 ocp_reg_write(tp, OCP_BASE_MII + reg_addr * 2, value);
hayeswangac718b62013-05-02 16:01:25 +0000963}
964
hayeswangac244d32014-01-02 11:22:40 +0800965static inline int r8152_mdio_read(struct r8152 *tp, u32 reg_addr)
hayeswangac718b62013-05-02 16:01:25 +0000966{
hayeswangac244d32014-01-02 11:22:40 +0800967 return ocp_reg_read(tp, OCP_BASE_MII + reg_addr * 2);
hayeswangac718b62013-05-02 16:01:25 +0000968}
969
hayeswang43779f82014-01-02 11:25:10 +0800970static void sram_write(struct r8152 *tp, u16 addr, u16 data)
971{
972 ocp_reg_write(tp, OCP_SRAM_ADDR, addr);
973 ocp_reg_write(tp, OCP_SRAM_DATA, data);
974}
975
hayeswangac718b62013-05-02 16:01:25 +0000976static int read_mii_word(struct net_device *netdev, int phy_id, int reg)
977{
978 struct r8152 *tp = netdev_priv(netdev);
hayeswang9a4be1b2014-02-18 21:49:07 +0800979 int ret;
hayeswangac718b62013-05-02 16:01:25 +0000980
hayeswang68714382014-04-11 17:54:31 +0800981 if (test_bit(RTL8152_UNPLUG, &tp->flags))
982 return -ENODEV;
983
hayeswangac718b62013-05-02 16:01:25 +0000984 if (phy_id != R8152_PHY_ID)
985 return -EINVAL;
986
hayeswang9a4be1b2014-02-18 21:49:07 +0800987 ret = r8152_mdio_read(tp, reg);
988
hayeswang9a4be1b2014-02-18 21:49:07 +0800989 return ret;
hayeswangac718b62013-05-02 16:01:25 +0000990}
991
992static
993void write_mii_word(struct net_device *netdev, int phy_id, int reg, int val)
994{
995 struct r8152 *tp = netdev_priv(netdev);
996
hayeswang68714382014-04-11 17:54:31 +0800997 if (test_bit(RTL8152_UNPLUG, &tp->flags))
998 return;
999
hayeswangac718b62013-05-02 16:01:25 +00001000 if (phy_id != R8152_PHY_ID)
1001 return;
1002
1003 r8152_mdio_write(tp, reg, val);
1004}
1005
hayeswangb209af92014-08-25 15:53:00 +08001006static int
1007r8152_submit_rx(struct r8152 *tp, struct rx_agg *agg, gfp_t mem_flags);
hayeswangebc2ec42013-08-14 20:54:38 +08001008
hayeswang8ba789a2014-09-04 16:15:41 +08001009static int rtl8152_set_mac_address(struct net_device *netdev, void *p)
1010{
1011 struct r8152 *tp = netdev_priv(netdev);
1012 struct sockaddr *addr = p;
hayeswangea6a7112014-10-02 17:03:12 +08001013 int ret = -EADDRNOTAVAIL;
hayeswang8ba789a2014-09-04 16:15:41 +08001014
1015 if (!is_valid_ether_addr(addr->sa_data))
hayeswangea6a7112014-10-02 17:03:12 +08001016 goto out1;
1017
1018 ret = usb_autopm_get_interface(tp->intf);
1019 if (ret < 0)
1020 goto out1;
hayeswang8ba789a2014-09-04 16:15:41 +08001021
hayeswangb5403272014-10-09 18:00:26 +08001022 mutex_lock(&tp->control);
1023
hayeswang8ba789a2014-09-04 16:15:41 +08001024 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
1025
1026 ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CRWECR, CRWECR_CONFIG);
1027 pla_ocp_write(tp, PLA_IDR, BYTE_EN_SIX_BYTES, 8, addr->sa_data);
1028 ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CRWECR, CRWECR_NORAML);
1029
hayeswangb5403272014-10-09 18:00:26 +08001030 mutex_unlock(&tp->control);
1031
hayeswangea6a7112014-10-02 17:03:12 +08001032 usb_autopm_put_interface(tp->intf);
1033out1:
1034 return ret;
hayeswang8ba789a2014-09-04 16:15:41 +08001035}
1036
hayeswang179bb6d2014-09-04 16:15:42 +08001037static int set_ethernet_addr(struct r8152 *tp)
hayeswangac718b62013-05-02 16:01:25 +00001038{
1039 struct net_device *dev = tp->netdev;
hayeswang179bb6d2014-09-04 16:15:42 +08001040 struct sockaddr sa;
hayeswang8a91c822014-02-18 21:49:01 +08001041 int ret;
hayeswangac718b62013-05-02 16:01:25 +00001042
hayeswang8a91c822014-02-18 21:49:01 +08001043 if (tp->version == RTL_VER_01)
hayeswang179bb6d2014-09-04 16:15:42 +08001044 ret = pla_ocp_read(tp, PLA_IDR, 8, sa.sa_data);
hayeswang8a91c822014-02-18 21:49:01 +08001045 else
hayeswang179bb6d2014-09-04 16:15:42 +08001046 ret = pla_ocp_read(tp, PLA_BACKUP, 8, sa.sa_data);
hayeswang8a91c822014-02-18 21:49:01 +08001047
1048 if (ret < 0) {
hayeswang179bb6d2014-09-04 16:15:42 +08001049 netif_err(tp, probe, dev, "Get ether addr fail\n");
1050 } else if (!is_valid_ether_addr(sa.sa_data)) {
1051 netif_err(tp, probe, dev, "Invalid ether addr %pM\n",
1052 sa.sa_data);
1053 eth_hw_addr_random(dev);
1054 ether_addr_copy(sa.sa_data, dev->dev_addr);
1055 ret = rtl8152_set_mac_address(dev, &sa);
1056 netif_info(tp, probe, dev, "Random ether addr %pM\n",
1057 sa.sa_data);
hayeswang8a91c822014-02-18 21:49:01 +08001058 } else {
hayeswang179bb6d2014-09-04 16:15:42 +08001059 if (tp->version == RTL_VER_01)
1060 ether_addr_copy(dev->dev_addr, sa.sa_data);
1061 else
1062 ret = rtl8152_set_mac_address(dev, &sa);
hayeswangac718b62013-05-02 16:01:25 +00001063 }
hayeswang179bb6d2014-09-04 16:15:42 +08001064
1065 return ret;
hayeswangac718b62013-05-02 16:01:25 +00001066}
1067
hayeswangac718b62013-05-02 16:01:25 +00001068static void read_bulk_callback(struct urb *urb)
1069{
hayeswangac718b62013-05-02 16:01:25 +00001070 struct net_device *netdev;
hayeswangac718b62013-05-02 16:01:25 +00001071 int status = urb->status;
hayeswangebc2ec42013-08-14 20:54:38 +08001072 struct rx_agg *agg;
1073 struct r8152 *tp;
hayeswangac718b62013-05-02 16:01:25 +00001074
hayeswangebc2ec42013-08-14 20:54:38 +08001075 agg = urb->context;
1076 if (!agg)
1077 return;
1078
1079 tp = agg->context;
hayeswangac718b62013-05-02 16:01:25 +00001080 if (!tp)
1081 return;
hayeswangebc2ec42013-08-14 20:54:38 +08001082
hayeswangac718b62013-05-02 16:01:25 +00001083 if (test_bit(RTL8152_UNPLUG, &tp->flags))
1084 return;
hayeswangebc2ec42013-08-14 20:54:38 +08001085
1086 if (!test_bit(WORK_ENABLE, &tp->flags))
hayeswangac718b62013-05-02 16:01:25 +00001087 return;
1088
hayeswangebc2ec42013-08-14 20:54:38 +08001089 netdev = tp->netdev;
hayeswang7559fb2f2013-08-16 16:09:38 +08001090
1091 /* When link down, the driver would cancel all bulks. */
1092 /* This avoid the re-submitting bulk */
hayeswangebc2ec42013-08-14 20:54:38 +08001093 if (!netif_carrier_ok(netdev))
1094 return;
1095
hayeswang9a4be1b2014-02-18 21:49:07 +08001096 usb_mark_last_busy(tp->udev);
1097
hayeswangac718b62013-05-02 16:01:25 +00001098 switch (status) {
1099 case 0:
hayeswangebc2ec42013-08-14 20:54:38 +08001100 if (urb->actual_length < ETH_ZLEN)
1101 break;
1102
hayeswang2685d412014-03-07 11:04:34 +08001103 spin_lock(&tp->rx_lock);
hayeswangebc2ec42013-08-14 20:54:38 +08001104 list_add_tail(&agg->list, &tp->rx_done);
hayeswang2685d412014-03-07 11:04:34 +08001105 spin_unlock(&tp->rx_lock);
hayeswangd823ab62015-01-12 12:06:23 +08001106 napi_schedule(&tp->napi);
hayeswangebc2ec42013-08-14 20:54:38 +08001107 return;
hayeswangac718b62013-05-02 16:01:25 +00001108 case -ESHUTDOWN:
1109 set_bit(RTL8152_UNPLUG, &tp->flags);
1110 netif_device_detach(tp->netdev);
hayeswangebc2ec42013-08-14 20:54:38 +08001111 return;
hayeswangac718b62013-05-02 16:01:25 +00001112 case -ENOENT:
1113 return; /* the urb is in unlink state */
1114 case -ETIME:
Hayes Wang4a8deae2014-01-07 11:18:22 +08001115 if (net_ratelimit())
1116 netdev_warn(netdev, "maybe reset is needed?\n");
hayeswangebc2ec42013-08-14 20:54:38 +08001117 break;
hayeswangac718b62013-05-02 16:01:25 +00001118 default:
Hayes Wang4a8deae2014-01-07 11:18:22 +08001119 if (net_ratelimit())
1120 netdev_warn(netdev, "Rx status %d\n", status);
hayeswangebc2ec42013-08-14 20:54:38 +08001121 break;
hayeswangac718b62013-05-02 16:01:25 +00001122 }
1123
hayeswanga0fccd42014-11-20 10:29:05 +08001124 r8152_submit_rx(tp, agg, GFP_ATOMIC);
hayeswangac718b62013-05-02 16:01:25 +00001125}
1126
1127static void write_bulk_callback(struct urb *urb)
1128{
hayeswangebc2ec42013-08-14 20:54:38 +08001129 struct net_device_stats *stats;
hayeswangd104eaf2014-03-06 15:07:17 +08001130 struct net_device *netdev;
hayeswangebc2ec42013-08-14 20:54:38 +08001131 struct tx_agg *agg;
hayeswangac718b62013-05-02 16:01:25 +00001132 struct r8152 *tp;
1133 int status = urb->status;
1134
hayeswangebc2ec42013-08-14 20:54:38 +08001135 agg = urb->context;
1136 if (!agg)
1137 return;
1138
1139 tp = agg->context;
hayeswangac718b62013-05-02 16:01:25 +00001140 if (!tp)
1141 return;
hayeswangebc2ec42013-08-14 20:54:38 +08001142
hayeswangd104eaf2014-03-06 15:07:17 +08001143 netdev = tp->netdev;
hayeswang05e0f1a2014-03-06 15:07:18 +08001144 stats = &netdev->stats;
hayeswangebc2ec42013-08-14 20:54:38 +08001145 if (status) {
Hayes Wang4a8deae2014-01-07 11:18:22 +08001146 if (net_ratelimit())
hayeswangd104eaf2014-03-06 15:07:17 +08001147 netdev_warn(netdev, "Tx status %d\n", status);
hayeswangebc2ec42013-08-14 20:54:38 +08001148 stats->tx_errors += agg->skb_num;
1149 } else {
1150 stats->tx_packets += agg->skb_num;
1151 stats->tx_bytes += agg->skb_len;
1152 }
1153
hayeswang2685d412014-03-07 11:04:34 +08001154 spin_lock(&tp->tx_lock);
hayeswangebc2ec42013-08-14 20:54:38 +08001155 list_add_tail(&agg->list, &tp->tx_free);
hayeswang2685d412014-03-07 11:04:34 +08001156 spin_unlock(&tp->tx_lock);
hayeswangebc2ec42013-08-14 20:54:38 +08001157
hayeswang9a4be1b2014-02-18 21:49:07 +08001158 usb_autopm_put_interface_async(tp->intf);
1159
hayeswangd104eaf2014-03-06 15:07:17 +08001160 if (!netif_carrier_ok(netdev))
hayeswangac718b62013-05-02 16:01:25 +00001161 return;
hayeswangebc2ec42013-08-14 20:54:38 +08001162
1163 if (!test_bit(WORK_ENABLE, &tp->flags))
1164 return;
1165
1166 if (test_bit(RTL8152_UNPLUG, &tp->flags))
1167 return;
1168
1169 if (!skb_queue_empty(&tp->tx_queue))
hayeswangd823ab62015-01-12 12:06:23 +08001170 napi_schedule(&tp->napi);
hayeswangebc2ec42013-08-14 20:54:38 +08001171}
1172
hayeswang40a82912013-08-14 20:54:40 +08001173static void intr_callback(struct urb *urb)
1174{
1175 struct r8152 *tp;
hayeswang500b6d72013-11-20 17:30:57 +08001176 __le16 *d;
hayeswang40a82912013-08-14 20:54:40 +08001177 int status = urb->status;
1178 int res;
1179
1180 tp = urb->context;
1181 if (!tp)
1182 return;
1183
1184 if (!test_bit(WORK_ENABLE, &tp->flags))
1185 return;
1186
1187 if (test_bit(RTL8152_UNPLUG, &tp->flags))
1188 return;
1189
1190 switch (status) {
1191 case 0: /* success */
1192 break;
1193 case -ECONNRESET: /* unlink */
1194 case -ESHUTDOWN:
1195 netif_device_detach(tp->netdev);
1196 case -ENOENT:
hayeswangd59c8762014-10-31 13:35:57 +08001197 case -EPROTO:
1198 netif_info(tp, intr, tp->netdev,
1199 "Stop submitting intr, status %d\n", status);
hayeswang40a82912013-08-14 20:54:40 +08001200 return;
1201 case -EOVERFLOW:
1202 netif_info(tp, intr, tp->netdev, "intr status -EOVERFLOW\n");
1203 goto resubmit;
1204 /* -EPIPE: should clear the halt */
1205 default:
1206 netif_info(tp, intr, tp->netdev, "intr status %d\n", status);
1207 goto resubmit;
1208 }
1209
1210 d = urb->transfer_buffer;
1211 if (INTR_LINK & __le16_to_cpu(d[0])) {
hayeswang51d979f2015-02-06 11:30:47 +08001212 if (!netif_carrier_ok(tp->netdev)) {
hayeswang40a82912013-08-14 20:54:40 +08001213 set_bit(RTL8152_LINK_CHG, &tp->flags);
1214 schedule_delayed_work(&tp->schedule, 0);
1215 }
1216 } else {
hayeswang51d979f2015-02-06 11:30:47 +08001217 if (netif_carrier_ok(tp->netdev)) {
hayeswang40a82912013-08-14 20:54:40 +08001218 set_bit(RTL8152_LINK_CHG, &tp->flags);
1219 schedule_delayed_work(&tp->schedule, 0);
1220 }
1221 }
1222
1223resubmit:
1224 res = usb_submit_urb(urb, GFP_ATOMIC);
hayeswang67610492014-10-30 11:46:40 +08001225 if (res == -ENODEV) {
1226 set_bit(RTL8152_UNPLUG, &tp->flags);
hayeswang40a82912013-08-14 20:54:40 +08001227 netif_device_detach(tp->netdev);
hayeswang67610492014-10-30 11:46:40 +08001228 } else if (res) {
hayeswang40a82912013-08-14 20:54:40 +08001229 netif_err(tp, intr, tp->netdev,
Hayes Wang4a8deae2014-01-07 11:18:22 +08001230 "can't resubmit intr, status %d\n", res);
hayeswang67610492014-10-30 11:46:40 +08001231 }
hayeswang40a82912013-08-14 20:54:40 +08001232}
1233
hayeswangebc2ec42013-08-14 20:54:38 +08001234static inline void *rx_agg_align(void *data)
1235{
hayeswang8e1f51b2014-01-02 11:22:41 +08001236 return (void *)ALIGN((uintptr_t)data, RX_ALIGN);
hayeswangebc2ec42013-08-14 20:54:38 +08001237}
1238
1239static inline void *tx_agg_align(void *data)
1240{
hayeswang8e1f51b2014-01-02 11:22:41 +08001241 return (void *)ALIGN((uintptr_t)data, TX_ALIGN);
hayeswangebc2ec42013-08-14 20:54:38 +08001242}
1243
1244static void free_all_mem(struct r8152 *tp)
1245{
1246 int i;
1247
1248 for (i = 0; i < RTL8152_MAX_RX; i++) {
hayeswang9629e3c2014-01-15 10:42:15 +08001249 usb_free_urb(tp->rx_info[i].urb);
1250 tp->rx_info[i].urb = NULL;
hayeswangebc2ec42013-08-14 20:54:38 +08001251
hayeswang9629e3c2014-01-15 10:42:15 +08001252 kfree(tp->rx_info[i].buffer);
1253 tp->rx_info[i].buffer = NULL;
1254 tp->rx_info[i].head = NULL;
hayeswangebc2ec42013-08-14 20:54:38 +08001255 }
1256
1257 for (i = 0; i < RTL8152_MAX_TX; i++) {
hayeswang9629e3c2014-01-15 10:42:15 +08001258 usb_free_urb(tp->tx_info[i].urb);
1259 tp->tx_info[i].urb = NULL;
hayeswangebc2ec42013-08-14 20:54:38 +08001260
hayeswang9629e3c2014-01-15 10:42:15 +08001261 kfree(tp->tx_info[i].buffer);
1262 tp->tx_info[i].buffer = NULL;
1263 tp->tx_info[i].head = NULL;
hayeswangebc2ec42013-08-14 20:54:38 +08001264 }
hayeswang40a82912013-08-14 20:54:40 +08001265
hayeswang9629e3c2014-01-15 10:42:15 +08001266 usb_free_urb(tp->intr_urb);
1267 tp->intr_urb = NULL;
hayeswang40a82912013-08-14 20:54:40 +08001268
hayeswang9629e3c2014-01-15 10:42:15 +08001269 kfree(tp->intr_buff);
1270 tp->intr_buff = NULL;
hayeswangebc2ec42013-08-14 20:54:38 +08001271}
1272
1273static int alloc_all_mem(struct r8152 *tp)
1274{
1275 struct net_device *netdev = tp->netdev;
hayeswang40a82912013-08-14 20:54:40 +08001276 struct usb_interface *intf = tp->intf;
1277 struct usb_host_interface *alt = intf->cur_altsetting;
1278 struct usb_host_endpoint *ep_intr = alt->endpoint + 2;
hayeswangebc2ec42013-08-14 20:54:38 +08001279 struct urb *urb;
1280 int node, i;
1281 u8 *buf;
1282
1283 node = netdev->dev.parent ? dev_to_node(netdev->dev.parent) : -1;
1284
1285 spin_lock_init(&tp->rx_lock);
1286 spin_lock_init(&tp->tx_lock);
hayeswangebc2ec42013-08-14 20:54:38 +08001287 INIT_LIST_HEAD(&tp->tx_free);
1288 skb_queue_head_init(&tp->tx_queue);
hayeswangd823ab62015-01-12 12:06:23 +08001289 skb_queue_head_init(&tp->rx_queue);
hayeswangebc2ec42013-08-14 20:54:38 +08001290
1291 for (i = 0; i < RTL8152_MAX_RX; i++) {
hayeswang52aec122014-09-02 10:27:52 +08001292 buf = kmalloc_node(agg_buf_sz, GFP_KERNEL, node);
hayeswangebc2ec42013-08-14 20:54:38 +08001293 if (!buf)
1294 goto err1;
1295
1296 if (buf != rx_agg_align(buf)) {
1297 kfree(buf);
hayeswang52aec122014-09-02 10:27:52 +08001298 buf = kmalloc_node(agg_buf_sz + RX_ALIGN, GFP_KERNEL,
hayeswang8e1f51b2014-01-02 11:22:41 +08001299 node);
hayeswangebc2ec42013-08-14 20:54:38 +08001300 if (!buf)
1301 goto err1;
1302 }
1303
1304 urb = usb_alloc_urb(0, GFP_KERNEL);
1305 if (!urb) {
1306 kfree(buf);
1307 goto err1;
1308 }
1309
1310 INIT_LIST_HEAD(&tp->rx_info[i].list);
1311 tp->rx_info[i].context = tp;
1312 tp->rx_info[i].urb = urb;
1313 tp->rx_info[i].buffer = buf;
1314 tp->rx_info[i].head = rx_agg_align(buf);
1315 }
1316
1317 for (i = 0; i < RTL8152_MAX_TX; i++) {
hayeswang52aec122014-09-02 10:27:52 +08001318 buf = kmalloc_node(agg_buf_sz, GFP_KERNEL, node);
hayeswangebc2ec42013-08-14 20:54:38 +08001319 if (!buf)
1320 goto err1;
1321
1322 if (buf != tx_agg_align(buf)) {
1323 kfree(buf);
hayeswang52aec122014-09-02 10:27:52 +08001324 buf = kmalloc_node(agg_buf_sz + TX_ALIGN, GFP_KERNEL,
hayeswang8e1f51b2014-01-02 11:22:41 +08001325 node);
hayeswangebc2ec42013-08-14 20:54:38 +08001326 if (!buf)
1327 goto err1;
1328 }
1329
1330 urb = usb_alloc_urb(0, GFP_KERNEL);
1331 if (!urb) {
1332 kfree(buf);
1333 goto err1;
1334 }
1335
1336 INIT_LIST_HEAD(&tp->tx_info[i].list);
1337 tp->tx_info[i].context = tp;
1338 tp->tx_info[i].urb = urb;
1339 tp->tx_info[i].buffer = buf;
1340 tp->tx_info[i].head = tx_agg_align(buf);
1341
1342 list_add_tail(&tp->tx_info[i].list, &tp->tx_free);
1343 }
1344
hayeswang40a82912013-08-14 20:54:40 +08001345 tp->intr_urb = usb_alloc_urb(0, GFP_KERNEL);
1346 if (!tp->intr_urb)
1347 goto err1;
1348
1349 tp->intr_buff = kmalloc(INTBUFSIZE, GFP_KERNEL);
1350 if (!tp->intr_buff)
1351 goto err1;
1352
1353 tp->intr_interval = (int)ep_intr->desc.bInterval;
1354 usb_fill_int_urb(tp->intr_urb, tp->udev, usb_rcvintpipe(tp->udev, 3),
hayeswangb209af92014-08-25 15:53:00 +08001355 tp->intr_buff, INTBUFSIZE, intr_callback,
1356 tp, tp->intr_interval);
hayeswang40a82912013-08-14 20:54:40 +08001357
hayeswangebc2ec42013-08-14 20:54:38 +08001358 return 0;
1359
1360err1:
1361 free_all_mem(tp);
1362 return -ENOMEM;
1363}
1364
hayeswang0de98f62013-08-16 16:09:35 +08001365static struct tx_agg *r8152_get_tx_agg(struct r8152 *tp)
1366{
1367 struct tx_agg *agg = NULL;
1368 unsigned long flags;
1369
hayeswang21949ab2014-03-07 11:04:35 +08001370 if (list_empty(&tp->tx_free))
1371 return NULL;
1372
hayeswang0de98f62013-08-16 16:09:35 +08001373 spin_lock_irqsave(&tp->tx_lock, flags);
1374 if (!list_empty(&tp->tx_free)) {
1375 struct list_head *cursor;
1376
1377 cursor = tp->tx_free.next;
1378 list_del_init(cursor);
1379 agg = list_entry(cursor, struct tx_agg, list);
1380 }
1381 spin_unlock_irqrestore(&tp->tx_lock, flags);
1382
1383 return agg;
1384}
1385
hayeswangb209af92014-08-25 15:53:00 +08001386/* r8152_csum_workaround()
hayeswang6128d1b2014-03-07 11:04:40 +08001387 * The hw limites the value the transport offset. When the offset is out of the
1388 * range, calculate the checksum by sw.
1389 */
1390static void r8152_csum_workaround(struct r8152 *tp, struct sk_buff *skb,
1391 struct sk_buff_head *list)
1392{
1393 if (skb_shinfo(skb)->gso_size) {
1394 netdev_features_t features = tp->netdev->features;
1395 struct sk_buff_head seg_list;
1396 struct sk_buff *segs, *nskb;
1397
hayeswanga91d45f2014-07-11 16:48:27 +08001398 features &= ~(NETIF_F_SG | NETIF_F_IPV6_CSUM | NETIF_F_TSO6);
hayeswang6128d1b2014-03-07 11:04:40 +08001399 segs = skb_gso_segment(skb, features);
1400 if (IS_ERR(segs) || !segs)
1401 goto drop;
1402
1403 __skb_queue_head_init(&seg_list);
1404
1405 do {
1406 nskb = segs;
1407 segs = segs->next;
1408 nskb->next = NULL;
1409 __skb_queue_tail(&seg_list, nskb);
1410 } while (segs);
1411
1412 skb_queue_splice(&seg_list, list);
1413 dev_kfree_skb(skb);
1414 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
1415 if (skb_checksum_help(skb) < 0)
1416 goto drop;
1417
1418 __skb_queue_head(list, skb);
1419 } else {
1420 struct net_device_stats *stats;
1421
1422drop:
1423 stats = &tp->netdev->stats;
1424 stats->tx_dropped++;
1425 dev_kfree_skb(skb);
1426 }
1427}
1428
hayeswangb209af92014-08-25 15:53:00 +08001429/* msdn_giant_send_check()
hayeswang6128d1b2014-03-07 11:04:40 +08001430 * According to the document of microsoft, the TCP Pseudo Header excludes the
1431 * packet length for IPv6 TCP large packets.
1432 */
1433static int msdn_giant_send_check(struct sk_buff *skb)
1434{
1435 const struct ipv6hdr *ipv6h;
1436 struct tcphdr *th;
hayeswangfcb308d2014-03-11 10:20:32 +08001437 int ret;
1438
1439 ret = skb_cow_head(skb, 0);
1440 if (ret)
1441 return ret;
hayeswang6128d1b2014-03-07 11:04:40 +08001442
1443 ipv6h = ipv6_hdr(skb);
1444 th = tcp_hdr(skb);
1445
1446 th->check = 0;
1447 th->check = ~tcp_v6_check(0, &ipv6h->saddr, &ipv6h->daddr, 0);
1448
hayeswangfcb308d2014-03-11 10:20:32 +08001449 return ret;
hayeswang6128d1b2014-03-07 11:04:40 +08001450}
1451
hayeswangc5554292014-09-12 10:43:11 +08001452static inline void rtl_tx_vlan_tag(struct tx_desc *desc, struct sk_buff *skb)
1453{
Jiri Pirkodf8a39d2015-01-13 17:13:44 +01001454 if (skb_vlan_tag_present(skb)) {
hayeswangc5554292014-09-12 10:43:11 +08001455 u32 opts2;
1456
Jiri Pirkodf8a39d2015-01-13 17:13:44 +01001457 opts2 = TX_VLAN_TAG | swab16(skb_vlan_tag_get(skb));
hayeswangc5554292014-09-12 10:43:11 +08001458 desc->opts2 |= cpu_to_le32(opts2);
1459 }
1460}
1461
1462static inline void rtl_rx_vlan_tag(struct rx_desc *desc, struct sk_buff *skb)
1463{
1464 u32 opts2 = le32_to_cpu(desc->opts2);
1465
1466 if (opts2 & RX_VLAN_TAG)
1467 __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q),
1468 swab16(opts2 & 0xffff));
1469}
1470
hayeswang60c89072014-03-07 11:04:39 +08001471static int r8152_tx_csum(struct r8152 *tp, struct tx_desc *desc,
1472 struct sk_buff *skb, u32 len, u32 transport_offset)
1473{
1474 u32 mss = skb_shinfo(skb)->gso_size;
1475 u32 opts1, opts2 = 0;
1476 int ret = TX_CSUM_SUCCESS;
1477
1478 WARN_ON_ONCE(len > TX_LEN_MAX);
1479
1480 opts1 = len | TX_FS | TX_LS;
1481
1482 if (mss) {
hayeswang6128d1b2014-03-07 11:04:40 +08001483 if (transport_offset > GTTCPHO_MAX) {
1484 netif_warn(tp, tx_err, tp->netdev,
1485 "Invalid transport offset 0x%x for TSO\n",
1486 transport_offset);
1487 ret = TX_CSUM_TSO;
1488 goto unavailable;
1489 }
1490
hayeswang6e74d172015-02-06 11:30:50 +08001491 switch (vlan_get_protocol(skb)) {
hayeswang60c89072014-03-07 11:04:39 +08001492 case htons(ETH_P_IP):
1493 opts1 |= GTSENDV4;
1494 break;
1495
hayeswang6128d1b2014-03-07 11:04:40 +08001496 case htons(ETH_P_IPV6):
hayeswangfcb308d2014-03-11 10:20:32 +08001497 if (msdn_giant_send_check(skb)) {
1498 ret = TX_CSUM_TSO;
1499 goto unavailable;
1500 }
hayeswang6128d1b2014-03-07 11:04:40 +08001501 opts1 |= GTSENDV6;
hayeswang6128d1b2014-03-07 11:04:40 +08001502 break;
1503
hayeswang60c89072014-03-07 11:04:39 +08001504 default:
1505 WARN_ON_ONCE(1);
1506 break;
1507 }
1508
1509 opts1 |= transport_offset << GTTCPHO_SHIFT;
1510 opts2 |= min(mss, MSS_MAX) << MSS_SHIFT;
1511 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
hayeswang5bd23882013-08-14 20:54:39 +08001512 u8 ip_protocol;
hayeswang5bd23882013-08-14 20:54:39 +08001513
hayeswang6128d1b2014-03-07 11:04:40 +08001514 if (transport_offset > TCPHO_MAX) {
1515 netif_warn(tp, tx_err, tp->netdev,
1516 "Invalid transport offset 0x%x\n",
1517 transport_offset);
1518 ret = TX_CSUM_NONE;
1519 goto unavailable;
1520 }
1521
hayeswang6e74d172015-02-06 11:30:50 +08001522 switch (vlan_get_protocol(skb)) {
hayeswang5bd23882013-08-14 20:54:39 +08001523 case htons(ETH_P_IP):
1524 opts2 |= IPV4_CS;
1525 ip_protocol = ip_hdr(skb)->protocol;
1526 break;
1527
1528 case htons(ETH_P_IPV6):
1529 opts2 |= IPV6_CS;
1530 ip_protocol = ipv6_hdr(skb)->nexthdr;
1531 break;
1532
1533 default:
1534 ip_protocol = IPPROTO_RAW;
1535 break;
1536 }
1537
hayeswang60c89072014-03-07 11:04:39 +08001538 if (ip_protocol == IPPROTO_TCP)
hayeswang5bd23882013-08-14 20:54:39 +08001539 opts2 |= TCP_CS;
hayeswang60c89072014-03-07 11:04:39 +08001540 else if (ip_protocol == IPPROTO_UDP)
hayeswang5bd23882013-08-14 20:54:39 +08001541 opts2 |= UDP_CS;
hayeswang60c89072014-03-07 11:04:39 +08001542 else
hayeswang5bd23882013-08-14 20:54:39 +08001543 WARN_ON_ONCE(1);
hayeswang5bd23882013-08-14 20:54:39 +08001544
hayeswang60c89072014-03-07 11:04:39 +08001545 opts2 |= transport_offset << TCPHO_SHIFT;
hayeswang5bd23882013-08-14 20:54:39 +08001546 }
hayeswang60c89072014-03-07 11:04:39 +08001547
1548 desc->opts2 = cpu_to_le32(opts2);
1549 desc->opts1 = cpu_to_le32(opts1);
1550
hayeswang6128d1b2014-03-07 11:04:40 +08001551unavailable:
hayeswang60c89072014-03-07 11:04:39 +08001552 return ret;
hayeswang5bd23882013-08-14 20:54:39 +08001553}
1554
hayeswangb1379d92013-08-16 16:09:37 +08001555static int r8152_tx_agg_fill(struct r8152 *tp, struct tx_agg *agg)
1556{
hayeswangd84130a2014-02-18 21:49:02 +08001557 struct sk_buff_head skb_head, *tx_queue = &tp->tx_queue;
hayeswang9a4be1b2014-02-18 21:49:07 +08001558 int remain, ret;
hayeswangb1379d92013-08-16 16:09:37 +08001559 u8 *tx_data;
1560
hayeswangd84130a2014-02-18 21:49:02 +08001561 __skb_queue_head_init(&skb_head);
hayeswang0c3121f2014-03-07 11:04:36 +08001562 spin_lock(&tx_queue->lock);
hayeswangd84130a2014-02-18 21:49:02 +08001563 skb_queue_splice_init(tx_queue, &skb_head);
hayeswang0c3121f2014-03-07 11:04:36 +08001564 spin_unlock(&tx_queue->lock);
hayeswangd84130a2014-02-18 21:49:02 +08001565
hayeswangb1379d92013-08-16 16:09:37 +08001566 tx_data = agg->head;
hayeswangb209af92014-08-25 15:53:00 +08001567 agg->skb_num = 0;
1568 agg->skb_len = 0;
hayeswang52aec122014-09-02 10:27:52 +08001569 remain = agg_buf_sz;
hayeswangb1379d92013-08-16 16:09:37 +08001570
hayeswang7937f9e2013-11-20 17:30:54 +08001571 while (remain >= ETH_ZLEN + sizeof(struct tx_desc)) {
hayeswangb1379d92013-08-16 16:09:37 +08001572 struct tx_desc *tx_desc;
1573 struct sk_buff *skb;
1574 unsigned int len;
hayeswang60c89072014-03-07 11:04:39 +08001575 u32 offset;
hayeswangb1379d92013-08-16 16:09:37 +08001576
hayeswangd84130a2014-02-18 21:49:02 +08001577 skb = __skb_dequeue(&skb_head);
hayeswangb1379d92013-08-16 16:09:37 +08001578 if (!skb)
1579 break;
1580
hayeswang60c89072014-03-07 11:04:39 +08001581 len = skb->len + sizeof(*tx_desc);
1582
1583 if (len > remain) {
hayeswangd84130a2014-02-18 21:49:02 +08001584 __skb_queue_head(&skb_head, skb);
hayeswangb1379d92013-08-16 16:09:37 +08001585 break;
1586 }
1587
hayeswang7937f9e2013-11-20 17:30:54 +08001588 tx_data = tx_agg_align(tx_data);
hayeswangb1379d92013-08-16 16:09:37 +08001589 tx_desc = (struct tx_desc *)tx_data;
hayeswang60c89072014-03-07 11:04:39 +08001590
1591 offset = (u32)skb_transport_offset(skb);
1592
hayeswang6128d1b2014-03-07 11:04:40 +08001593 if (r8152_tx_csum(tp, tx_desc, skb, skb->len, offset)) {
1594 r8152_csum_workaround(tp, skb, &skb_head);
1595 continue;
1596 }
hayeswang60c89072014-03-07 11:04:39 +08001597
hayeswangc5554292014-09-12 10:43:11 +08001598 rtl_tx_vlan_tag(tx_desc, skb);
1599
hayeswangb1379d92013-08-16 16:09:37 +08001600 tx_data += sizeof(*tx_desc);
1601
hayeswang60c89072014-03-07 11:04:39 +08001602 len = skb->len;
1603 if (skb_copy_bits(skb, 0, tx_data, len) < 0) {
1604 struct net_device_stats *stats = &tp->netdev->stats;
1605
1606 stats->tx_dropped++;
1607 dev_kfree_skb_any(skb);
1608 tx_data -= sizeof(*tx_desc);
1609 continue;
1610 }
hayeswangb1379d92013-08-16 16:09:37 +08001611
hayeswang7937f9e2013-11-20 17:30:54 +08001612 tx_data += len;
hayeswang60c89072014-03-07 11:04:39 +08001613 agg->skb_len += len;
1614 agg->skb_num++;
1615
1616 dev_kfree_skb_any(skb);
1617
hayeswang52aec122014-09-02 10:27:52 +08001618 remain = agg_buf_sz - (int)(tx_agg_align(tx_data) - agg->head);
hayeswangb1379d92013-08-16 16:09:37 +08001619 }
1620
hayeswangd84130a2014-02-18 21:49:02 +08001621 if (!skb_queue_empty(&skb_head)) {
hayeswang0c3121f2014-03-07 11:04:36 +08001622 spin_lock(&tx_queue->lock);
hayeswangd84130a2014-02-18 21:49:02 +08001623 skb_queue_splice(&skb_head, tx_queue);
hayeswang0c3121f2014-03-07 11:04:36 +08001624 spin_unlock(&tx_queue->lock);
hayeswangd84130a2014-02-18 21:49:02 +08001625 }
1626
hayeswang0c3121f2014-03-07 11:04:36 +08001627 netif_tx_lock(tp->netdev);
hayeswangdd1b1192013-11-20 17:30:56 +08001628
1629 if (netif_queue_stopped(tp->netdev) &&
1630 skb_queue_len(&tp->tx_queue) < tp->tx_qlen)
1631 netif_wake_queue(tp->netdev);
1632
hayeswang0c3121f2014-03-07 11:04:36 +08001633 netif_tx_unlock(tp->netdev);
hayeswang9a4be1b2014-02-18 21:49:07 +08001634
hayeswang0c3121f2014-03-07 11:04:36 +08001635 ret = usb_autopm_get_interface_async(tp->intf);
hayeswang9a4be1b2014-02-18 21:49:07 +08001636 if (ret < 0)
1637 goto out_tx_fill;
hayeswangdd1b1192013-11-20 17:30:56 +08001638
hayeswangb1379d92013-08-16 16:09:37 +08001639 usb_fill_bulk_urb(agg->urb, tp->udev, usb_sndbulkpipe(tp->udev, 2),
1640 agg->head, (int)(tx_data - (u8 *)agg->head),
1641 (usb_complete_t)write_bulk_callback, agg);
1642
hayeswang0c3121f2014-03-07 11:04:36 +08001643 ret = usb_submit_urb(agg->urb, GFP_ATOMIC);
hayeswang9a4be1b2014-02-18 21:49:07 +08001644 if (ret < 0)
hayeswang0c3121f2014-03-07 11:04:36 +08001645 usb_autopm_put_interface_async(tp->intf);
hayeswang9a4be1b2014-02-18 21:49:07 +08001646
1647out_tx_fill:
1648 return ret;
hayeswangb1379d92013-08-16 16:09:37 +08001649}
1650
hayeswang565cab02014-03-07 11:04:38 +08001651static u8 r8152_rx_csum(struct r8152 *tp, struct rx_desc *rx_desc)
1652{
1653 u8 checksum = CHECKSUM_NONE;
1654 u32 opts2, opts3;
1655
1656 if (tp->version == RTL_VER_01)
1657 goto return_result;
1658
1659 opts2 = le32_to_cpu(rx_desc->opts2);
1660 opts3 = le32_to_cpu(rx_desc->opts3);
1661
1662 if (opts2 & RD_IPV4_CS) {
1663 if (opts3 & IPF)
1664 checksum = CHECKSUM_NONE;
1665 else if ((opts2 & RD_UDP_CS) && (opts3 & UDPF))
1666 checksum = CHECKSUM_NONE;
1667 else if ((opts2 & RD_TCP_CS) && (opts3 & TCPF))
1668 checksum = CHECKSUM_NONE;
1669 else
1670 checksum = CHECKSUM_UNNECESSARY;
hayeswang6128d1b2014-03-07 11:04:40 +08001671 } else if (RD_IPV6_CS) {
1672 if ((opts2 & RD_UDP_CS) && !(opts3 & UDPF))
1673 checksum = CHECKSUM_UNNECESSARY;
1674 else if ((opts2 & RD_TCP_CS) && !(opts3 & TCPF))
1675 checksum = CHECKSUM_UNNECESSARY;
hayeswang565cab02014-03-07 11:04:38 +08001676 }
1677
1678return_result:
1679 return checksum;
1680}
1681
hayeswangd823ab62015-01-12 12:06:23 +08001682static int rx_bottom(struct r8152 *tp, int budget)
hayeswangebc2ec42013-08-14 20:54:38 +08001683{
hayeswanga5a4f462013-08-16 16:09:34 +08001684 unsigned long flags;
hayeswangd84130a2014-02-18 21:49:02 +08001685 struct list_head *cursor, *next, rx_queue;
hayeswange1a2ca92015-02-06 11:30:45 +08001686 int ret = 0, work_done = 0;
hayeswangd823ab62015-01-12 12:06:23 +08001687
1688 if (!skb_queue_empty(&tp->rx_queue)) {
1689 while (work_done < budget) {
1690 struct sk_buff *skb = __skb_dequeue(&tp->rx_queue);
1691 struct net_device *netdev = tp->netdev;
1692 struct net_device_stats *stats = &netdev->stats;
1693 unsigned int pkt_len;
1694
1695 if (!skb)
1696 break;
1697
1698 pkt_len = skb->len;
1699 napi_gro_receive(&tp->napi, skb);
1700 work_done++;
1701 stats->rx_packets++;
1702 stats->rx_bytes += pkt_len;
1703 }
1704 }
hayeswangebc2ec42013-08-14 20:54:38 +08001705
hayeswangd84130a2014-02-18 21:49:02 +08001706 if (list_empty(&tp->rx_done))
hayeswangd823ab62015-01-12 12:06:23 +08001707 goto out1;
hayeswangd84130a2014-02-18 21:49:02 +08001708
1709 INIT_LIST_HEAD(&rx_queue);
hayeswanga5a4f462013-08-16 16:09:34 +08001710 spin_lock_irqsave(&tp->rx_lock, flags);
hayeswangd84130a2014-02-18 21:49:02 +08001711 list_splice_init(&tp->rx_done, &rx_queue);
1712 spin_unlock_irqrestore(&tp->rx_lock, flags);
1713
1714 list_for_each_safe(cursor, next, &rx_queue) {
hayeswang43a44782013-08-16 16:09:36 +08001715 struct rx_desc *rx_desc;
1716 struct rx_agg *agg;
hayeswang43a44782013-08-16 16:09:36 +08001717 int len_used = 0;
1718 struct urb *urb;
1719 u8 *rx_data;
hayeswang43a44782013-08-16 16:09:36 +08001720
hayeswangebc2ec42013-08-14 20:54:38 +08001721 list_del_init(cursor);
hayeswangebc2ec42013-08-14 20:54:38 +08001722
1723 agg = list_entry(cursor, struct rx_agg, list);
1724 urb = agg->urb;
hayeswang0de98f62013-08-16 16:09:35 +08001725 if (urb->actual_length < ETH_ZLEN)
1726 goto submit;
hayeswangebc2ec42013-08-14 20:54:38 +08001727
hayeswangebc2ec42013-08-14 20:54:38 +08001728 rx_desc = agg->head;
1729 rx_data = agg->head;
hayeswang7937f9e2013-11-20 17:30:54 +08001730 len_used += sizeof(struct rx_desc);
hayeswangebc2ec42013-08-14 20:54:38 +08001731
hayeswang7937f9e2013-11-20 17:30:54 +08001732 while (urb->actual_length > len_used) {
hayeswang43a44782013-08-16 16:09:36 +08001733 struct net_device *netdev = tp->netdev;
hayeswang05e0f1a2014-03-06 15:07:18 +08001734 struct net_device_stats *stats = &netdev->stats;
hayeswang7937f9e2013-11-20 17:30:54 +08001735 unsigned int pkt_len;
hayeswang43a44782013-08-16 16:09:36 +08001736 struct sk_buff *skb;
1737
hayeswang7937f9e2013-11-20 17:30:54 +08001738 pkt_len = le32_to_cpu(rx_desc->opts1) & RX_LEN_MASK;
hayeswangebc2ec42013-08-14 20:54:38 +08001739 if (pkt_len < ETH_ZLEN)
1740 break;
1741
hayeswang7937f9e2013-11-20 17:30:54 +08001742 len_used += pkt_len;
1743 if (urb->actual_length < len_used)
1744 break;
1745
hayeswang8e1f51b2014-01-02 11:22:41 +08001746 pkt_len -= CRC_SIZE;
hayeswangebc2ec42013-08-14 20:54:38 +08001747 rx_data += sizeof(struct rx_desc);
1748
hayeswangc8d83962016-06-08 14:52:33 +08001749 skb = napi_alloc_skb(&tp->napi, pkt_len);
hayeswangebc2ec42013-08-14 20:54:38 +08001750 if (!skb) {
1751 stats->rx_dropped++;
hayeswang5e2f7482014-03-07 11:04:37 +08001752 goto find_next_rx;
hayeswangebc2ec42013-08-14 20:54:38 +08001753 }
hayeswang565cab02014-03-07 11:04:38 +08001754
1755 skb->ip_summed = r8152_rx_csum(tp, rx_desc);
hayeswangebc2ec42013-08-14 20:54:38 +08001756 memcpy(skb->data, rx_data, pkt_len);
1757 skb_put(skb, pkt_len);
1758 skb->protocol = eth_type_trans(skb, netdev);
hayeswangc5554292014-09-12 10:43:11 +08001759 rtl_rx_vlan_tag(rx_desc, skb);
hayeswangd823ab62015-01-12 12:06:23 +08001760 if (work_done < budget) {
1761 napi_gro_receive(&tp->napi, skb);
1762 work_done++;
1763 stats->rx_packets++;
1764 stats->rx_bytes += pkt_len;
1765 } else {
1766 __skb_queue_tail(&tp->rx_queue, skb);
1767 }
hayeswangebc2ec42013-08-14 20:54:38 +08001768
hayeswang5e2f7482014-03-07 11:04:37 +08001769find_next_rx:
hayeswang8e1f51b2014-01-02 11:22:41 +08001770 rx_data = rx_agg_align(rx_data + pkt_len + CRC_SIZE);
hayeswangebc2ec42013-08-14 20:54:38 +08001771 rx_desc = (struct rx_desc *)rx_data;
hayeswangebc2ec42013-08-14 20:54:38 +08001772 len_used = (int)(rx_data - (u8 *)agg->head);
hayeswang7937f9e2013-11-20 17:30:54 +08001773 len_used += sizeof(struct rx_desc);
hayeswangebc2ec42013-08-14 20:54:38 +08001774 }
1775
hayeswang0de98f62013-08-16 16:09:35 +08001776submit:
hayeswange1a2ca92015-02-06 11:30:45 +08001777 if (!ret) {
1778 ret = r8152_submit_rx(tp, agg, GFP_ATOMIC);
1779 } else {
1780 urb->actual_length = 0;
1781 list_add_tail(&agg->list, next);
1782 }
1783 }
1784
1785 if (!list_empty(&rx_queue)) {
1786 spin_lock_irqsave(&tp->rx_lock, flags);
1787 list_splice_tail(&rx_queue, &tp->rx_done);
1788 spin_unlock_irqrestore(&tp->rx_lock, flags);
hayeswangebc2ec42013-08-14 20:54:38 +08001789 }
hayeswangd823ab62015-01-12 12:06:23 +08001790
1791out1:
1792 return work_done;
hayeswangebc2ec42013-08-14 20:54:38 +08001793}
1794
1795static void tx_bottom(struct r8152 *tp)
1796{
hayeswangebc2ec42013-08-14 20:54:38 +08001797 int res;
1798
hayeswangb1379d92013-08-16 16:09:37 +08001799 do {
1800 struct tx_agg *agg;
hayeswangebc2ec42013-08-14 20:54:38 +08001801
hayeswangb1379d92013-08-16 16:09:37 +08001802 if (skb_queue_empty(&tp->tx_queue))
hayeswangebc2ec42013-08-14 20:54:38 +08001803 break;
1804
hayeswangb1379d92013-08-16 16:09:37 +08001805 agg = r8152_get_tx_agg(tp);
1806 if (!agg)
hayeswangebc2ec42013-08-14 20:54:38 +08001807 break;
hayeswangb1379d92013-08-16 16:09:37 +08001808
1809 res = r8152_tx_agg_fill(tp, agg);
1810 if (res) {
hayeswang05e0f1a2014-03-06 15:07:18 +08001811 struct net_device *netdev = tp->netdev;
hayeswangb1379d92013-08-16 16:09:37 +08001812
1813 if (res == -ENODEV) {
hayeswang67610492014-10-30 11:46:40 +08001814 set_bit(RTL8152_UNPLUG, &tp->flags);
hayeswangb1379d92013-08-16 16:09:37 +08001815 netif_device_detach(netdev);
1816 } else {
hayeswang05e0f1a2014-03-06 15:07:18 +08001817 struct net_device_stats *stats = &netdev->stats;
1818 unsigned long flags;
1819
hayeswangb1379d92013-08-16 16:09:37 +08001820 netif_warn(tp, tx_err, netdev,
1821 "failed tx_urb %d\n", res);
1822 stats->tx_dropped += agg->skb_num;
hayeswangdb8515e2014-03-06 15:07:16 +08001823
hayeswangb1379d92013-08-16 16:09:37 +08001824 spin_lock_irqsave(&tp->tx_lock, flags);
1825 list_add_tail(&agg->list, &tp->tx_free);
1826 spin_unlock_irqrestore(&tp->tx_lock, flags);
1827 }
hayeswangebc2ec42013-08-14 20:54:38 +08001828 }
hayeswangb1379d92013-08-16 16:09:37 +08001829 } while (res == 0);
hayeswangebc2ec42013-08-14 20:54:38 +08001830}
1831
hayeswangd823ab62015-01-12 12:06:23 +08001832static void bottom_half(struct r8152 *tp)
hayeswangebc2ec42013-08-14 20:54:38 +08001833{
hayeswangebc2ec42013-08-14 20:54:38 +08001834 if (test_bit(RTL8152_UNPLUG, &tp->flags))
1835 return;
1836
1837 if (!test_bit(WORK_ENABLE, &tp->flags))
1838 return;
1839
hayeswang7559fb2f2013-08-16 16:09:38 +08001840 /* When link down, the driver would cancel all bulks. */
1841 /* This avoid the re-submitting bulk */
hayeswangebc2ec42013-08-14 20:54:38 +08001842 if (!netif_carrier_ok(tp->netdev))
1843 return;
1844
hayeswangd823ab62015-01-12 12:06:23 +08001845 clear_bit(SCHEDULE_NAPI, &tp->flags);
hayeswang9451a112014-11-12 10:05:04 +08001846
hayeswang0c3121f2014-03-07 11:04:36 +08001847 tx_bottom(tp);
hayeswangebc2ec42013-08-14 20:54:38 +08001848}
1849
hayeswangd823ab62015-01-12 12:06:23 +08001850static int r8152_poll(struct napi_struct *napi, int budget)
1851{
1852 struct r8152 *tp = container_of(napi, struct r8152, napi);
1853 int work_done;
1854
1855 work_done = rx_bottom(tp, budget);
1856 bottom_half(tp);
1857
1858 if (work_done < budget) {
1859 napi_complete(napi);
1860 if (!list_empty(&tp->rx_done))
1861 napi_schedule(napi);
1862 }
1863
1864 return work_done;
1865}
1866
hayeswangebc2ec42013-08-14 20:54:38 +08001867static
1868int r8152_submit_rx(struct r8152 *tp, struct rx_agg *agg, gfp_t mem_flags)
1869{
hayeswanga0fccd42014-11-20 10:29:05 +08001870 int ret;
1871
hayeswangef827a52015-01-09 10:26:36 +08001872 /* The rx would be stopped, so skip submitting */
1873 if (test_bit(RTL8152_UNPLUG, &tp->flags) ||
1874 !test_bit(WORK_ENABLE, &tp->flags) || !netif_carrier_ok(tp->netdev))
1875 return 0;
1876
hayeswangebc2ec42013-08-14 20:54:38 +08001877 usb_fill_bulk_urb(agg->urb, tp->udev, usb_rcvbulkpipe(tp->udev, 1),
hayeswang52aec122014-09-02 10:27:52 +08001878 agg->head, agg_buf_sz,
hayeswangb209af92014-08-25 15:53:00 +08001879 (usb_complete_t)read_bulk_callback, agg);
hayeswangebc2ec42013-08-14 20:54:38 +08001880
hayeswanga0fccd42014-11-20 10:29:05 +08001881 ret = usb_submit_urb(agg->urb, mem_flags);
1882 if (ret == -ENODEV) {
1883 set_bit(RTL8152_UNPLUG, &tp->flags);
1884 netif_device_detach(tp->netdev);
1885 } else if (ret) {
1886 struct urb *urb = agg->urb;
1887 unsigned long flags;
1888
1889 urb->actual_length = 0;
1890 spin_lock_irqsave(&tp->rx_lock, flags);
1891 list_add_tail(&agg->list, &tp->rx_done);
1892 spin_unlock_irqrestore(&tp->rx_lock, flags);
hayeswangd823ab62015-01-12 12:06:23 +08001893
1894 netif_err(tp, rx_err, tp->netdev,
1895 "Couldn't submit rx[%p], ret = %d\n", agg, ret);
1896
1897 napi_schedule(&tp->napi);
hayeswanga0fccd42014-11-20 10:29:05 +08001898 }
1899
1900 return ret;
hayeswangac718b62013-05-02 16:01:25 +00001901}
1902
hayeswang00a5e362014-02-18 21:48:59 +08001903static void rtl_drop_queued_tx(struct r8152 *tp)
1904{
1905 struct net_device_stats *stats = &tp->netdev->stats;
hayeswangd84130a2014-02-18 21:49:02 +08001906 struct sk_buff_head skb_head, *tx_queue = &tp->tx_queue;
hayeswang00a5e362014-02-18 21:48:59 +08001907 struct sk_buff *skb;
1908
hayeswangd84130a2014-02-18 21:49:02 +08001909 if (skb_queue_empty(tx_queue))
1910 return;
1911
1912 __skb_queue_head_init(&skb_head);
hayeswang2685d412014-03-07 11:04:34 +08001913 spin_lock_bh(&tx_queue->lock);
hayeswangd84130a2014-02-18 21:49:02 +08001914 skb_queue_splice_init(tx_queue, &skb_head);
hayeswang2685d412014-03-07 11:04:34 +08001915 spin_unlock_bh(&tx_queue->lock);
hayeswangd84130a2014-02-18 21:49:02 +08001916
1917 while ((skb = __skb_dequeue(&skb_head))) {
hayeswang00a5e362014-02-18 21:48:59 +08001918 dev_kfree_skb(skb);
1919 stats->tx_dropped++;
1920 }
1921}
1922
hayeswangac718b62013-05-02 16:01:25 +00001923static void rtl8152_tx_timeout(struct net_device *netdev)
1924{
1925 struct r8152 *tp = netdev_priv(netdev);
hayeswangebc2ec42013-08-14 20:54:38 +08001926
Hayes Wang4a8deae2014-01-07 11:18:22 +08001927 netif_warn(tp, tx_err, netdev, "Tx timeout\n");
hayeswang37608f32015-07-29 20:39:09 +08001928
1929 usb_queue_reset_device(tp->intf);
hayeswangac718b62013-05-02 16:01:25 +00001930}
1931
1932static void rtl8152_set_rx_mode(struct net_device *netdev)
1933{
1934 struct r8152 *tp = netdev_priv(netdev);
1935
hayeswang51d979f2015-02-06 11:30:47 +08001936 if (netif_carrier_ok(netdev)) {
hayeswangac718b62013-05-02 16:01:25 +00001937 set_bit(RTL8152_SET_RX_MODE, &tp->flags);
hayeswang40a82912013-08-14 20:54:40 +08001938 schedule_delayed_work(&tp->schedule, 0);
1939 }
hayeswangac718b62013-05-02 16:01:25 +00001940}
1941
1942static void _rtl8152_set_rx_mode(struct net_device *netdev)
1943{
1944 struct r8152 *tp = netdev_priv(netdev);
hayeswang31787f52013-07-31 17:21:25 +08001945 u32 mc_filter[2]; /* Multicast hash filter */
1946 __le32 tmp[2];
hayeswangac718b62013-05-02 16:01:25 +00001947 u32 ocp_data;
1948
hayeswangac718b62013-05-02 16:01:25 +00001949 netif_stop_queue(netdev);
1950 ocp_data = ocp_read_dword(tp, MCU_TYPE_PLA, PLA_RCR);
1951 ocp_data &= ~RCR_ACPT_ALL;
1952 ocp_data |= RCR_AB | RCR_APM;
1953
1954 if (netdev->flags & IFF_PROMISC) {
1955 /* Unconditionally log net taps. */
1956 netif_notice(tp, link, netdev, "Promiscuous mode enabled\n");
1957 ocp_data |= RCR_AM | RCR_AAP;
hayeswangb209af92014-08-25 15:53:00 +08001958 mc_filter[1] = 0xffffffff;
1959 mc_filter[0] = 0xffffffff;
hayeswangac718b62013-05-02 16:01:25 +00001960 } else if ((netdev_mc_count(netdev) > multicast_filter_limit) ||
1961 (netdev->flags & IFF_ALLMULTI)) {
1962 /* Too many to filter perfectly -- accept all multicasts. */
1963 ocp_data |= RCR_AM;
hayeswangb209af92014-08-25 15:53:00 +08001964 mc_filter[1] = 0xffffffff;
1965 mc_filter[0] = 0xffffffff;
hayeswangac718b62013-05-02 16:01:25 +00001966 } else {
1967 struct netdev_hw_addr *ha;
1968
hayeswangb209af92014-08-25 15:53:00 +08001969 mc_filter[1] = 0;
1970 mc_filter[0] = 0;
hayeswangac718b62013-05-02 16:01:25 +00001971 netdev_for_each_mc_addr(ha, netdev) {
1972 int bit_nr = ether_crc(ETH_ALEN, ha->addr) >> 26;
hayeswangb209af92014-08-25 15:53:00 +08001973
hayeswangac718b62013-05-02 16:01:25 +00001974 mc_filter[bit_nr >> 5] |= 1 << (bit_nr & 31);
1975 ocp_data |= RCR_AM;
1976 }
1977 }
1978
hayeswang31787f52013-07-31 17:21:25 +08001979 tmp[0] = __cpu_to_le32(swab32(mc_filter[1]));
1980 tmp[1] = __cpu_to_le32(swab32(mc_filter[0]));
hayeswangac718b62013-05-02 16:01:25 +00001981
hayeswang31787f52013-07-31 17:21:25 +08001982 pla_ocp_write(tp, PLA_MAR, BYTE_EN_DWORD, sizeof(tmp), tmp);
hayeswangac718b62013-05-02 16:01:25 +00001983 ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RCR, ocp_data);
1984 netif_wake_queue(netdev);
hayeswangac718b62013-05-02 16:01:25 +00001985}
1986
hayeswanga5e31252015-01-06 17:41:58 +08001987static netdev_features_t
1988rtl8152_features_check(struct sk_buff *skb, struct net_device *dev,
1989 netdev_features_t features)
1990{
1991 u32 mss = skb_shinfo(skb)->gso_size;
1992 int max_offset = mss ? GTTCPHO_MAX : TCPHO_MAX;
1993 int offset = skb_transport_offset(skb);
1994
1995 if ((mss || skb->ip_summed == CHECKSUM_PARTIAL) && offset > max_offset)
Tom Herberta1882222015-12-14 11:19:43 -08001996 features &= ~(NETIF_F_CSUM_MASK | NETIF_F_GSO_MASK);
hayeswanga5e31252015-01-06 17:41:58 +08001997 else if ((skb->len + sizeof(struct tx_desc)) > agg_buf_sz)
1998 features &= ~NETIF_F_GSO_MASK;
1999
2000 return features;
2001}
2002
hayeswangac718b62013-05-02 16:01:25 +00002003static netdev_tx_t rtl8152_start_xmit(struct sk_buff *skb,
hayeswangb209af92014-08-25 15:53:00 +08002004 struct net_device *netdev)
hayeswangac718b62013-05-02 16:01:25 +00002005{
2006 struct r8152 *tp = netdev_priv(netdev);
hayeswangac718b62013-05-02 16:01:25 +00002007
hayeswangac718b62013-05-02 16:01:25 +00002008 skb_tx_timestamp(skb);
hayeswangebc2ec42013-08-14 20:54:38 +08002009
hayeswang61598782013-11-20 17:30:55 +08002010 skb_queue_tail(&tp->tx_queue, skb);
hayeswangebc2ec42013-08-14 20:54:38 +08002011
hayeswang0c3121f2014-03-07 11:04:36 +08002012 if (!list_empty(&tp->tx_free)) {
2013 if (test_bit(SELECTIVE_SUSPEND, &tp->flags)) {
hayeswangd823ab62015-01-12 12:06:23 +08002014 set_bit(SCHEDULE_NAPI, &tp->flags);
hayeswang0c3121f2014-03-07 11:04:36 +08002015 schedule_delayed_work(&tp->schedule, 0);
2016 } else {
2017 usb_mark_last_busy(tp->udev);
hayeswangd823ab62015-01-12 12:06:23 +08002018 napi_schedule(&tp->napi);
hayeswang0c3121f2014-03-07 11:04:36 +08002019 }
hayeswangb209af92014-08-25 15:53:00 +08002020 } else if (skb_queue_len(&tp->tx_queue) > tp->tx_qlen) {
hayeswangdd1b1192013-11-20 17:30:56 +08002021 netif_stop_queue(netdev);
hayeswangb209af92014-08-25 15:53:00 +08002022 }
hayeswangdd1b1192013-11-20 17:30:56 +08002023
hayeswangac718b62013-05-02 16:01:25 +00002024 return NETDEV_TX_OK;
2025}
2026
2027static void r8152b_reset_packet_filter(struct r8152 *tp)
2028{
2029 u32 ocp_data;
2030
2031 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_FMC);
2032 ocp_data &= ~FMC_FCR_MCU_EN;
2033 ocp_write_word(tp, MCU_TYPE_PLA, PLA_FMC, ocp_data);
2034 ocp_data |= FMC_FCR_MCU_EN;
2035 ocp_write_word(tp, MCU_TYPE_PLA, PLA_FMC, ocp_data);
2036}
2037
2038static void rtl8152_nic_reset(struct r8152 *tp)
2039{
2040 int i;
2041
2042 ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CR, CR_RST);
2043
2044 for (i = 0; i < 1000; i++) {
2045 if (!(ocp_read_byte(tp, MCU_TYPE_PLA, PLA_CR) & CR_RST))
2046 break;
hayeswangb209af92014-08-25 15:53:00 +08002047 usleep_range(100, 400);
hayeswangac718b62013-05-02 16:01:25 +00002048 }
2049}
2050
hayeswangdd1b1192013-11-20 17:30:56 +08002051static void set_tx_qlen(struct r8152 *tp)
2052{
2053 struct net_device *netdev = tp->netdev;
2054
hayeswang52aec122014-09-02 10:27:52 +08002055 tp->tx_qlen = agg_buf_sz / (netdev->mtu + VLAN_ETH_HLEN + VLAN_HLEN +
2056 sizeof(struct tx_desc));
hayeswangdd1b1192013-11-20 17:30:56 +08002057}
2058
hayeswangac718b62013-05-02 16:01:25 +00002059static inline u8 rtl8152_get_speed(struct r8152 *tp)
2060{
2061 return ocp_read_byte(tp, MCU_TYPE_PLA, PLA_PHYSTATUS);
2062}
2063
hayeswang507605a2014-01-02 11:22:43 +08002064static void rtl_set_eee_plus(struct r8152 *tp)
hayeswangac718b62013-05-02 16:01:25 +00002065{
hayeswangebc2ec42013-08-14 20:54:38 +08002066 u32 ocp_data;
hayeswangac718b62013-05-02 16:01:25 +00002067 u8 speed;
2068
2069 speed = rtl8152_get_speed(tp);
hayeswangebc2ec42013-08-14 20:54:38 +08002070 if (speed & _10bps) {
hayeswangac718b62013-05-02 16:01:25 +00002071 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_EEEP_CR);
hayeswangebc2ec42013-08-14 20:54:38 +08002072 ocp_data |= EEEP_CR_EEEP_TX;
hayeswangac718b62013-05-02 16:01:25 +00002073 ocp_write_word(tp, MCU_TYPE_PLA, PLA_EEEP_CR, ocp_data);
2074 } else {
2075 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_EEEP_CR);
hayeswangebc2ec42013-08-14 20:54:38 +08002076 ocp_data &= ~EEEP_CR_EEEP_TX;
hayeswangac718b62013-05-02 16:01:25 +00002077 ocp_write_word(tp, MCU_TYPE_PLA, PLA_EEEP_CR, ocp_data);
2078 }
hayeswang507605a2014-01-02 11:22:43 +08002079}
2080
hayeswang00a5e362014-02-18 21:48:59 +08002081static void rxdy_gated_en(struct r8152 *tp, bool enable)
2082{
2083 u32 ocp_data;
2084
2085 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_MISC_1);
2086 if (enable)
2087 ocp_data |= RXDY_GATED_EN;
2088 else
2089 ocp_data &= ~RXDY_GATED_EN;
2090 ocp_write_word(tp, MCU_TYPE_PLA, PLA_MISC_1, ocp_data);
2091}
2092
hayeswang445f7f42014-09-23 16:31:47 +08002093static int rtl_start_rx(struct r8152 *tp)
2094{
2095 int i, ret = 0;
2096
2097 INIT_LIST_HEAD(&tp->rx_done);
2098 for (i = 0; i < RTL8152_MAX_RX; i++) {
2099 INIT_LIST_HEAD(&tp->rx_info[i].list);
2100 ret = r8152_submit_rx(tp, &tp->rx_info[i], GFP_KERNEL);
2101 if (ret)
2102 break;
2103 }
2104
hayeswang7bcf4f62014-11-20 10:29:06 +08002105 if (ret && ++i < RTL8152_MAX_RX) {
2106 struct list_head rx_queue;
2107 unsigned long flags;
2108
2109 INIT_LIST_HEAD(&rx_queue);
2110
2111 do {
2112 struct rx_agg *agg = &tp->rx_info[i++];
2113 struct urb *urb = agg->urb;
2114
2115 urb->actual_length = 0;
2116 list_add_tail(&agg->list, &rx_queue);
2117 } while (i < RTL8152_MAX_RX);
2118
2119 spin_lock_irqsave(&tp->rx_lock, flags);
2120 list_splice_tail(&rx_queue, &tp->rx_done);
2121 spin_unlock_irqrestore(&tp->rx_lock, flags);
2122 }
2123
hayeswang445f7f42014-09-23 16:31:47 +08002124 return ret;
2125}
2126
2127static int rtl_stop_rx(struct r8152 *tp)
2128{
2129 int i;
2130
2131 for (i = 0; i < RTL8152_MAX_RX; i++)
2132 usb_kill_urb(tp->rx_info[i].urb);
2133
hayeswangd823ab62015-01-12 12:06:23 +08002134 while (!skb_queue_empty(&tp->rx_queue))
2135 dev_kfree_skb(__skb_dequeue(&tp->rx_queue));
2136
hayeswang445f7f42014-09-23 16:31:47 +08002137 return 0;
2138}
2139
hayeswang507605a2014-01-02 11:22:43 +08002140static int rtl_enable(struct r8152 *tp)
2141{
2142 u32 ocp_data;
hayeswangac718b62013-05-02 16:01:25 +00002143
2144 r8152b_reset_packet_filter(tp);
2145
2146 ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_CR);
2147 ocp_data |= CR_RE | CR_TE;
2148 ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CR, ocp_data);
2149
hayeswang00a5e362014-02-18 21:48:59 +08002150 rxdy_gated_en(tp, false);
hayeswangac718b62013-05-02 16:01:25 +00002151
hayeswangaa2e0922015-01-09 10:26:35 +08002152 return 0;
hayeswangac718b62013-05-02 16:01:25 +00002153}
2154
hayeswang507605a2014-01-02 11:22:43 +08002155static int rtl8152_enable(struct r8152 *tp)
2156{
hayeswang68714382014-04-11 17:54:31 +08002157 if (test_bit(RTL8152_UNPLUG, &tp->flags))
2158 return -ENODEV;
2159
hayeswang507605a2014-01-02 11:22:43 +08002160 set_tx_qlen(tp);
2161 rtl_set_eee_plus(tp);
2162
2163 return rtl_enable(tp);
2164}
2165
hayeswang464ec102015-02-12 14:33:46 +08002166static void r8153_set_rx_early_timeout(struct r8152 *tp)
hayeswang43779f82014-01-02 11:25:10 +08002167{
hayeswang464ec102015-02-12 14:33:46 +08002168 u32 ocp_data = tp->coalesce / 8;
hayeswang43779f82014-01-02 11:25:10 +08002169
hayeswang464ec102015-02-12 14:33:46 +08002170 ocp_write_word(tp, MCU_TYPE_USB, USB_RX_EARLY_TIMEOUT, ocp_data);
2171}
2172
2173static void r8153_set_rx_early_size(struct r8152 *tp)
2174{
2175 u32 mtu = tp->netdev->mtu;
2176 u32 ocp_data = (agg_buf_sz - mtu - VLAN_ETH_HLEN - VLAN_HLEN) / 4;
2177
2178 ocp_write_word(tp, MCU_TYPE_USB, USB_RX_EARLY_SIZE, ocp_data);
hayeswang43779f82014-01-02 11:25:10 +08002179}
2180
2181static int rtl8153_enable(struct r8152 *tp)
2182{
hayeswang68714382014-04-11 17:54:31 +08002183 if (test_bit(RTL8152_UNPLUG, &tp->flags))
2184 return -ENODEV;
2185
hayeswangb2143962015-07-24 13:54:23 +08002186 usb_disable_lpm(tp->udev);
hayeswang43779f82014-01-02 11:25:10 +08002187 set_tx_qlen(tp);
2188 rtl_set_eee_plus(tp);
hayeswang464ec102015-02-12 14:33:46 +08002189 r8153_set_rx_early_timeout(tp);
2190 r8153_set_rx_early_size(tp);
hayeswang43779f82014-01-02 11:25:10 +08002191
2192 return rtl_enable(tp);
2193}
2194
hayeswangd70b1132014-09-19 15:17:18 +08002195static void rtl_disable(struct r8152 *tp)
hayeswangac718b62013-05-02 16:01:25 +00002196{
hayeswangebc2ec42013-08-14 20:54:38 +08002197 u32 ocp_data;
2198 int i;
hayeswangac718b62013-05-02 16:01:25 +00002199
hayeswang68714382014-04-11 17:54:31 +08002200 if (test_bit(RTL8152_UNPLUG, &tp->flags)) {
2201 rtl_drop_queued_tx(tp);
2202 return;
2203 }
2204
hayeswangac718b62013-05-02 16:01:25 +00002205 ocp_data = ocp_read_dword(tp, MCU_TYPE_PLA, PLA_RCR);
2206 ocp_data &= ~RCR_ACPT_ALL;
2207 ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RCR, ocp_data);
2208
hayeswang00a5e362014-02-18 21:48:59 +08002209 rtl_drop_queued_tx(tp);
hayeswangebc2ec42013-08-14 20:54:38 +08002210
2211 for (i = 0; i < RTL8152_MAX_TX; i++)
2212 usb_kill_urb(tp->tx_info[i].urb);
hayeswangac718b62013-05-02 16:01:25 +00002213
hayeswang00a5e362014-02-18 21:48:59 +08002214 rxdy_gated_en(tp, true);
hayeswangac718b62013-05-02 16:01:25 +00002215
2216 for (i = 0; i < 1000; i++) {
2217 ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
2218 if ((ocp_data & FIFO_EMPTY) == FIFO_EMPTY)
2219 break;
hayeswang8ddfa072014-09-09 11:40:28 +08002220 usleep_range(1000, 2000);
hayeswangac718b62013-05-02 16:01:25 +00002221 }
2222
2223 for (i = 0; i < 1000; i++) {
2224 if (ocp_read_word(tp, MCU_TYPE_PLA, PLA_TCR0) & TCR0_TX_EMPTY)
2225 break;
hayeswang8ddfa072014-09-09 11:40:28 +08002226 usleep_range(1000, 2000);
hayeswangac718b62013-05-02 16:01:25 +00002227 }
2228
hayeswang445f7f42014-09-23 16:31:47 +08002229 rtl_stop_rx(tp);
hayeswangac718b62013-05-02 16:01:25 +00002230
2231 rtl8152_nic_reset(tp);
2232}
2233
hayeswang00a5e362014-02-18 21:48:59 +08002234static void r8152_power_cut_en(struct r8152 *tp, bool enable)
2235{
2236 u32 ocp_data;
2237
2238 ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_UPS_CTRL);
2239 if (enable)
2240 ocp_data |= POWER_CUT;
2241 else
2242 ocp_data &= ~POWER_CUT;
2243 ocp_write_word(tp, MCU_TYPE_USB, USB_UPS_CTRL, ocp_data);
2244
2245 ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_PM_CTRL_STATUS);
2246 ocp_data &= ~RESUME_INDICATE;
2247 ocp_write_word(tp, MCU_TYPE_USB, USB_PM_CTRL_STATUS, ocp_data);
hayeswang00a5e362014-02-18 21:48:59 +08002248}
2249
hayeswangc5554292014-09-12 10:43:11 +08002250static void rtl_rx_vlan_en(struct r8152 *tp, bool enable)
2251{
2252 u32 ocp_data;
2253
2254 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_CPCR);
2255 if (enable)
2256 ocp_data |= CPCR_RX_VLAN;
2257 else
2258 ocp_data &= ~CPCR_RX_VLAN;
2259 ocp_write_word(tp, MCU_TYPE_PLA, PLA_CPCR, ocp_data);
2260}
2261
2262static int rtl8152_set_features(struct net_device *dev,
2263 netdev_features_t features)
2264{
2265 netdev_features_t changed = features ^ dev->features;
2266 struct r8152 *tp = netdev_priv(dev);
hayeswang405f8a02014-10-09 18:00:24 +08002267 int ret;
2268
2269 ret = usb_autopm_get_interface(tp->intf);
2270 if (ret < 0)
2271 goto out;
hayeswangc5554292014-09-12 10:43:11 +08002272
hayeswangb5403272014-10-09 18:00:26 +08002273 mutex_lock(&tp->control);
2274
hayeswangc5554292014-09-12 10:43:11 +08002275 if (changed & NETIF_F_HW_VLAN_CTAG_RX) {
2276 if (features & NETIF_F_HW_VLAN_CTAG_RX)
2277 rtl_rx_vlan_en(tp, true);
2278 else
2279 rtl_rx_vlan_en(tp, false);
2280 }
2281
hayeswangb5403272014-10-09 18:00:26 +08002282 mutex_unlock(&tp->control);
2283
hayeswang405f8a02014-10-09 18:00:24 +08002284 usb_autopm_put_interface(tp->intf);
2285
2286out:
2287 return ret;
hayeswangc5554292014-09-12 10:43:11 +08002288}
2289
hayeswang21ff2e82014-02-18 21:49:06 +08002290#define WAKE_ANY (WAKE_PHY | WAKE_MAGIC | WAKE_UCAST | WAKE_BCAST | WAKE_MCAST)
2291
2292static u32 __rtl_get_wol(struct r8152 *tp)
2293{
2294 u32 ocp_data;
2295 u32 wolopts = 0;
2296
2297 ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_CONFIG5);
2298 if (!(ocp_data & LAN_WAKE_EN))
2299 return 0;
2300
2301 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_CONFIG34);
2302 if (ocp_data & LINK_ON_WAKE_EN)
2303 wolopts |= WAKE_PHY;
2304
2305 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_CONFIG5);
2306 if (ocp_data & UWF_EN)
2307 wolopts |= WAKE_UCAST;
2308 if (ocp_data & BWF_EN)
2309 wolopts |= WAKE_BCAST;
2310 if (ocp_data & MWF_EN)
2311 wolopts |= WAKE_MCAST;
2312
2313 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_CFG_WOL);
2314 if (ocp_data & MAGIC_EN)
2315 wolopts |= WAKE_MAGIC;
2316
2317 return wolopts;
2318}
2319
2320static void __rtl_set_wol(struct r8152 *tp, u32 wolopts)
2321{
2322 u32 ocp_data;
2323
2324 ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CRWECR, CRWECR_CONFIG);
2325
2326 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_CONFIG34);
2327 ocp_data &= ~LINK_ON_WAKE_EN;
2328 if (wolopts & WAKE_PHY)
2329 ocp_data |= LINK_ON_WAKE_EN;
2330 ocp_write_word(tp, MCU_TYPE_PLA, PLA_CONFIG34, ocp_data);
2331
2332 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_CONFIG5);
2333 ocp_data &= ~(UWF_EN | BWF_EN | MWF_EN | LAN_WAKE_EN);
2334 if (wolopts & WAKE_UCAST)
2335 ocp_data |= UWF_EN;
2336 if (wolopts & WAKE_BCAST)
2337 ocp_data |= BWF_EN;
2338 if (wolopts & WAKE_MCAST)
2339 ocp_data |= MWF_EN;
2340 if (wolopts & WAKE_ANY)
2341 ocp_data |= LAN_WAKE_EN;
2342 ocp_write_word(tp, MCU_TYPE_PLA, PLA_CONFIG5, ocp_data);
2343
2344 ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CRWECR, CRWECR_NORAML);
2345
2346 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_CFG_WOL);
2347 ocp_data &= ~MAGIC_EN;
2348 if (wolopts & WAKE_MAGIC)
2349 ocp_data |= MAGIC_EN;
2350 ocp_write_word(tp, MCU_TYPE_PLA, PLA_CFG_WOL, ocp_data);
2351
2352 if (wolopts & WAKE_ANY)
2353 device_set_wakeup_enable(&tp->udev->dev, true);
2354 else
2355 device_set_wakeup_enable(&tp->udev->dev, false);
2356}
2357
hayeswangb2143962015-07-24 13:54:23 +08002358static void r8153_u1u2en(struct r8152 *tp, bool enable)
2359{
2360 u8 u1u2[8];
2361
2362 if (enable)
2363 memset(u1u2, 0xff, sizeof(u1u2));
2364 else
2365 memset(u1u2, 0x00, sizeof(u1u2));
2366
2367 usb_ocp_write(tp, USB_TOLERANCE, BYTE_EN_SIX_BYTES, sizeof(u1u2), u1u2);
2368}
2369
2370static void r8153_u2p3en(struct r8152 *tp, bool enable)
2371{
2372 u32 ocp_data;
2373
2374 ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_U2P3_CTRL);
2375 if (enable && tp->version != RTL_VER_03 && tp->version != RTL_VER_04)
2376 ocp_data |= U2P3_ENABLE;
2377 else
2378 ocp_data &= ~U2P3_ENABLE;
2379 ocp_write_word(tp, MCU_TYPE_USB, USB_U2P3_CTRL, ocp_data);
2380}
2381
2382static void r8153_power_cut_en(struct r8152 *tp, bool enable)
2383{
2384 u32 ocp_data;
2385
2386 ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_POWER_CUT);
2387 if (enable)
2388 ocp_data |= PWR_EN | PHASE2_EN;
2389 else
2390 ocp_data &= ~(PWR_EN | PHASE2_EN);
2391 ocp_write_word(tp, MCU_TYPE_USB, USB_POWER_CUT, ocp_data);
2392
2393 ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_MISC_0);
2394 ocp_data &= ~PCUT_STATUS;
2395 ocp_write_word(tp, MCU_TYPE_USB, USB_MISC_0, ocp_data);
2396}
2397
hayeswang7daed8d2015-07-24 13:54:24 +08002398static bool rtl_can_wakeup(struct r8152 *tp)
2399{
2400 struct usb_device *udev = tp->udev;
2401
2402 return (udev->actconfig->desc.bmAttributes & USB_CONFIG_ATT_WAKEUP);
2403}
2404
hayeswang9a4be1b2014-02-18 21:49:07 +08002405static void rtl_runtime_suspend_enable(struct r8152 *tp, bool enable)
2406{
2407 if (enable) {
2408 u32 ocp_data;
2409
hayeswangb2143962015-07-24 13:54:23 +08002410 r8153_u1u2en(tp, false);
2411 r8153_u2p3en(tp, false);
2412
hayeswang9a4be1b2014-02-18 21:49:07 +08002413 __rtl_set_wol(tp, WAKE_ANY);
2414
2415 ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CRWECR, CRWECR_CONFIG);
2416
2417 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_CONFIG34);
2418 ocp_data |= LINK_OFF_WAKE_EN;
2419 ocp_write_word(tp, MCU_TYPE_PLA, PLA_CONFIG34, ocp_data);
2420
2421 ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CRWECR, CRWECR_NORAML);
2422 } else {
2423 __rtl_set_wol(tp, tp->saved_wolopts);
hayeswangb2143962015-07-24 13:54:23 +08002424 r8153_u2p3en(tp, true);
2425 r8153_u1u2en(tp, true);
hayeswang9a4be1b2014-02-18 21:49:07 +08002426 }
2427}
2428
hayeswangaa66a5f2014-02-18 21:49:04 +08002429static void rtl_phy_reset(struct r8152 *tp)
2430{
2431 u16 data;
2432 int i;
2433
hayeswangaa66a5f2014-02-18 21:49:04 +08002434 data = r8152_mdio_read(tp, MII_BMCR);
2435
2436 /* don't reset again before the previous one complete */
2437 if (data & BMCR_RESET)
2438 return;
2439
2440 data |= BMCR_RESET;
2441 r8152_mdio_write(tp, MII_BMCR, data);
2442
2443 for (i = 0; i < 50; i++) {
2444 msleep(20);
2445 if ((r8152_mdio_read(tp, MII_BMCR) & BMCR_RESET) == 0)
2446 break;
2447 }
2448}
2449
hayeswang43499682014-02-18 21:48:58 +08002450static void r8153_teredo_off(struct r8152 *tp)
2451{
2452 u32 ocp_data;
2453
2454 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_TEREDO_CFG);
2455 ocp_data &= ~(TEREDO_SEL | TEREDO_RS_EVENT_MASK | OOB_TEREDO_EN);
2456 ocp_write_word(tp, MCU_TYPE_PLA, PLA_TEREDO_CFG, ocp_data);
2457
2458 ocp_write_word(tp, MCU_TYPE_PLA, PLA_WDT6_CTRL, WDT6_SET_MODE);
2459 ocp_write_word(tp, MCU_TYPE_PLA, PLA_REALWOW_TIMER, 0);
2460 ocp_write_dword(tp, MCU_TYPE_PLA, PLA_TEREDO_TIMER, 0);
2461}
2462
hayeswangcda9fb02016-01-07 17:51:12 +08002463static void r8152_aldps_en(struct r8152 *tp, bool enable)
hayeswang43499682014-02-18 21:48:58 +08002464{
hayeswangcda9fb02016-01-07 17:51:12 +08002465 if (enable) {
2466 ocp_reg_write(tp, OCP_ALDPS_CONFIG, ENPWRSAVE | ENPDNPS |
2467 LINKENA | DIS_SDSAVE);
2468 } else {
2469 ocp_reg_write(tp, OCP_ALDPS_CONFIG, ENPDNPS | LINKENA |
2470 DIS_SDSAVE);
2471 msleep(20);
2472 }
hayeswang43499682014-02-18 21:48:58 +08002473}
2474
hayeswangd70b1132014-09-19 15:17:18 +08002475static void rtl8152_disable(struct r8152 *tp)
2476{
hayeswangcda9fb02016-01-07 17:51:12 +08002477 r8152_aldps_en(tp, false);
hayeswangd70b1132014-09-19 15:17:18 +08002478 rtl_disable(tp);
hayeswangcda9fb02016-01-07 17:51:12 +08002479 r8152_aldps_en(tp, true);
hayeswangd70b1132014-09-19 15:17:18 +08002480}
2481
hayeswang43499682014-02-18 21:48:58 +08002482static void r8152b_hw_phy_cfg(struct r8152 *tp)
2483{
hayeswangf0cbe0a2014-02-18 21:49:03 +08002484 u16 data;
2485
2486 data = r8152_mdio_read(tp, MII_BMCR);
2487 if (data & BMCR_PDOWN) {
2488 data &= ~BMCR_PDOWN;
2489 r8152_mdio_write(tp, MII_BMCR, data);
2490 }
2491
hayeswangaa66a5f2014-02-18 21:49:04 +08002492 set_bit(PHY_RESET, &tp->flags);
hayeswang43499682014-02-18 21:48:58 +08002493}
2494
hayeswangac718b62013-05-02 16:01:25 +00002495static void r8152b_exit_oob(struct r8152 *tp)
2496{
hayeswangdb8515e2014-03-06 15:07:16 +08002497 u32 ocp_data;
2498 int i;
hayeswangac718b62013-05-02 16:01:25 +00002499
2500 ocp_data = ocp_read_dword(tp, MCU_TYPE_PLA, PLA_RCR);
2501 ocp_data &= ~RCR_ACPT_ALL;
2502 ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RCR, ocp_data);
2503
hayeswang00a5e362014-02-18 21:48:59 +08002504 rxdy_gated_en(tp, true);
hayeswangda9bd112014-02-18 21:49:08 +08002505 r8153_teredo_off(tp);
hayeswangac718b62013-05-02 16:01:25 +00002506 ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CRWECR, CRWECR_NORAML);
2507 ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CR, 0x00);
2508
2509 ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
2510 ocp_data &= ~NOW_IS_OOB;
2511 ocp_write_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL, ocp_data);
2512
2513 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7);
2514 ocp_data &= ~MCU_BORW_EN;
2515 ocp_write_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7, ocp_data);
2516
2517 for (i = 0; i < 1000; i++) {
2518 ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
2519 if (ocp_data & LINK_LIST_READY)
2520 break;
hayeswang8ddfa072014-09-09 11:40:28 +08002521 usleep_range(1000, 2000);
hayeswangac718b62013-05-02 16:01:25 +00002522 }
2523
2524 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7);
2525 ocp_data |= RE_INIT_LL;
2526 ocp_write_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7, ocp_data);
2527
2528 for (i = 0; i < 1000; i++) {
2529 ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
2530 if (ocp_data & LINK_LIST_READY)
2531 break;
hayeswang8ddfa072014-09-09 11:40:28 +08002532 usleep_range(1000, 2000);
hayeswangac718b62013-05-02 16:01:25 +00002533 }
2534
2535 rtl8152_nic_reset(tp);
2536
2537 /* rx share fifo credit full threshold */
2538 ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL0, RXFIFO_THR1_NORMAL);
2539
hayeswanga3cc4652014-07-24 16:37:43 +08002540 if (tp->udev->speed == USB_SPEED_FULL ||
2541 tp->udev->speed == USB_SPEED_LOW) {
hayeswangac718b62013-05-02 16:01:25 +00002542 /* rx share fifo credit near full threshold */
2543 ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL1,
2544 RXFIFO_THR2_FULL);
2545 ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL2,
2546 RXFIFO_THR3_FULL);
2547 } else {
2548 /* rx share fifo credit near full threshold */
2549 ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL1,
2550 RXFIFO_THR2_HIGH);
2551 ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL2,
2552 RXFIFO_THR3_HIGH);
2553 }
2554
2555 /* TX share fifo free credit full threshold */
2556 ocp_write_dword(tp, MCU_TYPE_PLA, PLA_TXFIFO_CTRL, TXFIFO_THR_NORMAL);
2557
2558 ocp_write_byte(tp, MCU_TYPE_USB, USB_TX_AGG, TX_AGG_MAX_THRESHOLD);
hayeswang8e1f51b2014-01-02 11:22:41 +08002559 ocp_write_dword(tp, MCU_TYPE_USB, USB_RX_BUF_TH, RX_THR_HIGH);
hayeswangac718b62013-05-02 16:01:25 +00002560 ocp_write_dword(tp, MCU_TYPE_USB, USB_TX_DMA,
2561 TEST_MODE_DISABLE | TX_SIZE_ADJUST1);
2562
hayeswangc5554292014-09-12 10:43:11 +08002563 rtl_rx_vlan_en(tp, tp->netdev->features & NETIF_F_HW_VLAN_CTAG_RX);
hayeswangac718b62013-05-02 16:01:25 +00002564
2565 ocp_write_word(tp, MCU_TYPE_PLA, PLA_RMS, RTL8152_RMS);
2566
2567 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_TCR0);
2568 ocp_data |= TCR0_AUTO_FIFO;
2569 ocp_write_word(tp, MCU_TYPE_PLA, PLA_TCR0, ocp_data);
2570}
2571
2572static void r8152b_enter_oob(struct r8152 *tp)
2573{
hayeswang45f4a192014-01-06 17:08:41 +08002574 u32 ocp_data;
2575 int i;
hayeswangac718b62013-05-02 16:01:25 +00002576
2577 ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
2578 ocp_data &= ~NOW_IS_OOB;
2579 ocp_write_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL, ocp_data);
2580
2581 ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL0, RXFIFO_THR1_OOB);
2582 ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL1, RXFIFO_THR2_OOB);
2583 ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL2, RXFIFO_THR3_OOB);
2584
hayeswangd70b1132014-09-19 15:17:18 +08002585 rtl_disable(tp);
hayeswangac718b62013-05-02 16:01:25 +00002586
2587 for (i = 0; i < 1000; i++) {
2588 ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
2589 if (ocp_data & LINK_LIST_READY)
2590 break;
hayeswang8ddfa072014-09-09 11:40:28 +08002591 usleep_range(1000, 2000);
hayeswangac718b62013-05-02 16:01:25 +00002592 }
2593
2594 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7);
2595 ocp_data |= RE_INIT_LL;
2596 ocp_write_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7, ocp_data);
2597
2598 for (i = 0; i < 1000; i++) {
2599 ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
2600 if (ocp_data & LINK_LIST_READY)
2601 break;
hayeswang8ddfa072014-09-09 11:40:28 +08002602 usleep_range(1000, 2000);
hayeswangac718b62013-05-02 16:01:25 +00002603 }
2604
2605 ocp_write_word(tp, MCU_TYPE_PLA, PLA_RMS, RTL8152_RMS);
2606
hayeswangc5554292014-09-12 10:43:11 +08002607 rtl_rx_vlan_en(tp, true);
hayeswangac718b62013-05-02 16:01:25 +00002608
2609 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PAL_BDC_CR);
2610 ocp_data |= ALDPS_PROXY_MODE;
2611 ocp_write_word(tp, MCU_TYPE_PLA, PAL_BDC_CR, ocp_data);
2612
2613 ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
2614 ocp_data |= NOW_IS_OOB | DIS_MCU_CLROOB;
2615 ocp_write_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL, ocp_data);
2616
hayeswang00a5e362014-02-18 21:48:59 +08002617 rxdy_gated_en(tp, false);
hayeswangac718b62013-05-02 16:01:25 +00002618
2619 ocp_data = ocp_read_dword(tp, MCU_TYPE_PLA, PLA_RCR);
2620 ocp_data |= RCR_APM | RCR_AM | RCR_AB;
2621 ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RCR, ocp_data);
2622}
2623
hayeswang43779f82014-01-02 11:25:10 +08002624static void r8153_hw_phy_cfg(struct r8152 *tp)
2625{
2626 u32 ocp_data;
2627 u16 data;
2628
hayeswangfb02eb42015-07-22 15:27:41 +08002629 if (tp->version == RTL_VER_03 || tp->version == RTL_VER_04 ||
2630 tp->version == RTL_VER_05)
2631 ocp_reg_write(tp, OCP_ADC_CFG, CKADSEL_L | ADC_EN | EN_EMI_L);
2632
hayeswangf0cbe0a2014-02-18 21:49:03 +08002633 data = r8152_mdio_read(tp, MII_BMCR);
2634 if (data & BMCR_PDOWN) {
2635 data &= ~BMCR_PDOWN;
2636 r8152_mdio_write(tp, MII_BMCR, data);
2637 }
hayeswang43779f82014-01-02 11:25:10 +08002638
2639 if (tp->version == RTL_VER_03) {
2640 data = ocp_reg_read(tp, OCP_EEE_CFG);
2641 data &= ~CTAP_SHORT_EN;
2642 ocp_reg_write(tp, OCP_EEE_CFG, data);
2643 }
2644
2645 data = ocp_reg_read(tp, OCP_POWER_CFG);
2646 data |= EEE_CLKDIV_EN;
2647 ocp_reg_write(tp, OCP_POWER_CFG, data);
2648
2649 data = ocp_reg_read(tp, OCP_DOWN_SPEED);
2650 data |= EN_10M_BGOFF;
2651 ocp_reg_write(tp, OCP_DOWN_SPEED, data);
2652 data = ocp_reg_read(tp, OCP_POWER_CFG);
2653 data |= EN_10M_PLLOFF;
2654 ocp_reg_write(tp, OCP_POWER_CFG, data);
hayeswangb4d99de2015-01-19 17:02:46 +08002655 sram_write(tp, SRAM_IMPEDANCE, 0x0b13);
hayeswang43779f82014-01-02 11:25:10 +08002656
2657 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_PHY_PWR);
2658 ocp_data |= PFM_PWM_SWITCH;
2659 ocp_write_word(tp, MCU_TYPE_PLA, PLA_PHY_PWR, ocp_data);
2660
hayeswangb4d99de2015-01-19 17:02:46 +08002661 /* Enable LPF corner auto tune */
2662 sram_write(tp, SRAM_LPF_CFG, 0xf70f);
hayeswang43779f82014-01-02 11:25:10 +08002663
hayeswangb4d99de2015-01-19 17:02:46 +08002664 /* Adjust 10M Amplitude */
2665 sram_write(tp, SRAM_10M_AMP1, 0x00af);
2666 sram_write(tp, SRAM_10M_AMP2, 0x0208);
hayeswangaa66a5f2014-02-18 21:49:04 +08002667
2668 set_bit(PHY_RESET, &tp->flags);
hayeswang43779f82014-01-02 11:25:10 +08002669}
2670
hayeswang43779f82014-01-02 11:25:10 +08002671static void r8153_first_init(struct r8152 *tp)
2672{
2673 u32 ocp_data;
2674 int i;
2675
hayeswang00a5e362014-02-18 21:48:59 +08002676 rxdy_gated_en(tp, true);
hayeswang43779f82014-01-02 11:25:10 +08002677 r8153_teredo_off(tp);
2678
2679 ocp_data = ocp_read_dword(tp, MCU_TYPE_PLA, PLA_RCR);
2680 ocp_data &= ~RCR_ACPT_ALL;
2681 ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RCR, ocp_data);
2682
hayeswang43779f82014-01-02 11:25:10 +08002683 rtl8152_nic_reset(tp);
2684
2685 ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
2686 ocp_data &= ~NOW_IS_OOB;
2687 ocp_write_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL, ocp_data);
2688
2689 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7);
2690 ocp_data &= ~MCU_BORW_EN;
2691 ocp_write_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7, ocp_data);
2692
2693 for (i = 0; i < 1000; i++) {
2694 ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
2695 if (ocp_data & LINK_LIST_READY)
2696 break;
hayeswang8ddfa072014-09-09 11:40:28 +08002697 usleep_range(1000, 2000);
hayeswang43779f82014-01-02 11:25:10 +08002698 }
2699
2700 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7);
2701 ocp_data |= RE_INIT_LL;
2702 ocp_write_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7, ocp_data);
2703
2704 for (i = 0; i < 1000; i++) {
2705 ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
2706 if (ocp_data & LINK_LIST_READY)
2707 break;
hayeswang8ddfa072014-09-09 11:40:28 +08002708 usleep_range(1000, 2000);
hayeswang43779f82014-01-02 11:25:10 +08002709 }
2710
hayeswangc5554292014-09-12 10:43:11 +08002711 rtl_rx_vlan_en(tp, tp->netdev->features & NETIF_F_HW_VLAN_CTAG_RX);
hayeswang43779f82014-01-02 11:25:10 +08002712
hayeswang69b4b7a2014-07-10 10:58:54 +08002713 ocp_write_word(tp, MCU_TYPE_PLA, PLA_RMS, RTL8153_RMS);
2714 ocp_write_byte(tp, MCU_TYPE_PLA, PLA_MTPS, MTPS_JUMBO);
hayeswang43779f82014-01-02 11:25:10 +08002715
2716 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_TCR0);
2717 ocp_data |= TCR0_AUTO_FIFO;
2718 ocp_write_word(tp, MCU_TYPE_PLA, PLA_TCR0, ocp_data);
2719
2720 rtl8152_nic_reset(tp);
2721
2722 /* rx share fifo credit full threshold */
2723 ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL0, RXFIFO_THR1_NORMAL);
2724 ocp_write_word(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL1, RXFIFO_THR2_NORMAL);
2725 ocp_write_word(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL2, RXFIFO_THR3_NORMAL);
2726 /* TX share fifo free credit full threshold */
2727 ocp_write_dword(tp, MCU_TYPE_PLA, PLA_TXFIFO_CTRL, TXFIFO_THR_NORMAL2);
2728
hayeswang9629e3c2014-01-15 10:42:15 +08002729 /* rx aggregation */
hayeswang43779f82014-01-02 11:25:10 +08002730 ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_USB_CTRL);
hayeswange90fba82015-07-31 11:23:39 +08002731 ocp_data &= ~(RX_AGG_DISABLE | RX_ZERO_EN);
hayeswang43779f82014-01-02 11:25:10 +08002732 ocp_write_word(tp, MCU_TYPE_USB, USB_USB_CTRL, ocp_data);
2733}
2734
2735static void r8153_enter_oob(struct r8152 *tp)
2736{
2737 u32 ocp_data;
2738 int i;
2739
2740 ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
2741 ocp_data &= ~NOW_IS_OOB;
2742 ocp_write_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL, ocp_data);
2743
hayeswangd70b1132014-09-19 15:17:18 +08002744 rtl_disable(tp);
hayeswang43779f82014-01-02 11:25:10 +08002745
2746 for (i = 0; i < 1000; i++) {
2747 ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
2748 if (ocp_data & LINK_LIST_READY)
2749 break;
hayeswang8ddfa072014-09-09 11:40:28 +08002750 usleep_range(1000, 2000);
hayeswang43779f82014-01-02 11:25:10 +08002751 }
2752
2753 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7);
2754 ocp_data |= RE_INIT_LL;
2755 ocp_write_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7, ocp_data);
2756
2757 for (i = 0; i < 1000; i++) {
2758 ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
2759 if (ocp_data & LINK_LIST_READY)
2760 break;
hayeswang8ddfa072014-09-09 11:40:28 +08002761 usleep_range(1000, 2000);
hayeswang43779f82014-01-02 11:25:10 +08002762 }
2763
hayeswang69b4b7a2014-07-10 10:58:54 +08002764 ocp_write_word(tp, MCU_TYPE_PLA, PLA_RMS, RTL8153_RMS);
hayeswang43779f82014-01-02 11:25:10 +08002765
hayeswang43779f82014-01-02 11:25:10 +08002766 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_TEREDO_CFG);
2767 ocp_data &= ~TEREDO_WAKE_MASK;
2768 ocp_write_word(tp, MCU_TYPE_PLA, PLA_TEREDO_CFG, ocp_data);
2769
hayeswangc5554292014-09-12 10:43:11 +08002770 rtl_rx_vlan_en(tp, true);
hayeswang43779f82014-01-02 11:25:10 +08002771
2772 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PAL_BDC_CR);
2773 ocp_data |= ALDPS_PROXY_MODE;
2774 ocp_write_word(tp, MCU_TYPE_PLA, PAL_BDC_CR, ocp_data);
2775
2776 ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
2777 ocp_data |= NOW_IS_OOB | DIS_MCU_CLROOB;
2778 ocp_write_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL, ocp_data);
2779
hayeswang00a5e362014-02-18 21:48:59 +08002780 rxdy_gated_en(tp, false);
hayeswang43779f82014-01-02 11:25:10 +08002781
2782 ocp_data = ocp_read_dword(tp, MCU_TYPE_PLA, PLA_RCR);
2783 ocp_data |= RCR_APM | RCR_AM | RCR_AB;
2784 ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RCR, ocp_data);
2785}
2786
hayeswangcda9fb02016-01-07 17:51:12 +08002787static void r8153_aldps_en(struct r8152 *tp, bool enable)
hayeswang43779f82014-01-02 11:25:10 +08002788{
2789 u16 data;
2790
2791 data = ocp_reg_read(tp, OCP_POWER_CFG);
hayeswangcda9fb02016-01-07 17:51:12 +08002792 if (enable) {
2793 data |= EN_ALDPS;
2794 ocp_reg_write(tp, OCP_POWER_CFG, data);
2795 } else {
2796 data &= ~EN_ALDPS;
2797 ocp_reg_write(tp, OCP_POWER_CFG, data);
2798 msleep(20);
2799 }
hayeswang43779f82014-01-02 11:25:10 +08002800}
2801
hayeswangd70b1132014-09-19 15:17:18 +08002802static void rtl8153_disable(struct r8152 *tp)
2803{
hayeswangcda9fb02016-01-07 17:51:12 +08002804 r8153_aldps_en(tp, false);
hayeswangd70b1132014-09-19 15:17:18 +08002805 rtl_disable(tp);
hayeswangcda9fb02016-01-07 17:51:12 +08002806 r8153_aldps_en(tp, true);
hayeswangb2143962015-07-24 13:54:23 +08002807 usb_enable_lpm(tp->udev);
hayeswangd70b1132014-09-19 15:17:18 +08002808}
2809
hayeswangac718b62013-05-02 16:01:25 +00002810static int rtl8152_set_speed(struct r8152 *tp, u8 autoneg, u16 speed, u8 duplex)
2811{
hayeswang43779f82014-01-02 11:25:10 +08002812 u16 bmcr, anar, gbcr;
hayeswangac718b62013-05-02 16:01:25 +00002813 int ret = 0;
2814
2815 cancel_delayed_work_sync(&tp->schedule);
2816 anar = r8152_mdio_read(tp, MII_ADVERTISE);
2817 anar &= ~(ADVERTISE_10HALF | ADVERTISE_10FULL |
2818 ADVERTISE_100HALF | ADVERTISE_100FULL);
hayeswang43779f82014-01-02 11:25:10 +08002819 if (tp->mii.supports_gmii) {
2820 gbcr = r8152_mdio_read(tp, MII_CTRL1000);
2821 gbcr &= ~(ADVERTISE_1000FULL | ADVERTISE_1000HALF);
2822 } else {
2823 gbcr = 0;
2824 }
hayeswangac718b62013-05-02 16:01:25 +00002825
2826 if (autoneg == AUTONEG_DISABLE) {
2827 if (speed == SPEED_10) {
2828 bmcr = 0;
2829 anar |= ADVERTISE_10HALF | ADVERTISE_10FULL;
2830 } else if (speed == SPEED_100) {
2831 bmcr = BMCR_SPEED100;
2832 anar |= ADVERTISE_100HALF | ADVERTISE_100FULL;
hayeswang43779f82014-01-02 11:25:10 +08002833 } else if (speed == SPEED_1000 && tp->mii.supports_gmii) {
2834 bmcr = BMCR_SPEED1000;
2835 gbcr |= ADVERTISE_1000FULL | ADVERTISE_1000HALF;
hayeswangac718b62013-05-02 16:01:25 +00002836 } else {
2837 ret = -EINVAL;
2838 goto out;
2839 }
2840
2841 if (duplex == DUPLEX_FULL)
2842 bmcr |= BMCR_FULLDPLX;
2843 } else {
2844 if (speed == SPEED_10) {
2845 if (duplex == DUPLEX_FULL)
2846 anar |= ADVERTISE_10HALF | ADVERTISE_10FULL;
2847 else
2848 anar |= ADVERTISE_10HALF;
2849 } else if (speed == SPEED_100) {
2850 if (duplex == DUPLEX_FULL) {
2851 anar |= ADVERTISE_10HALF | ADVERTISE_10FULL;
2852 anar |= ADVERTISE_100HALF | ADVERTISE_100FULL;
2853 } else {
2854 anar |= ADVERTISE_10HALF;
2855 anar |= ADVERTISE_100HALF;
2856 }
hayeswang43779f82014-01-02 11:25:10 +08002857 } else if (speed == SPEED_1000 && tp->mii.supports_gmii) {
2858 if (duplex == DUPLEX_FULL) {
2859 anar |= ADVERTISE_10HALF | ADVERTISE_10FULL;
2860 anar |= ADVERTISE_100HALF | ADVERTISE_100FULL;
2861 gbcr |= ADVERTISE_1000FULL | ADVERTISE_1000HALF;
2862 } else {
2863 anar |= ADVERTISE_10HALF;
2864 anar |= ADVERTISE_100HALF;
2865 gbcr |= ADVERTISE_1000HALF;
2866 }
hayeswangac718b62013-05-02 16:01:25 +00002867 } else {
2868 ret = -EINVAL;
2869 goto out;
2870 }
2871
2872 bmcr = BMCR_ANENABLE | BMCR_ANRESTART;
2873 }
2874
hayeswangaa66a5f2014-02-18 21:49:04 +08002875 if (test_bit(PHY_RESET, &tp->flags))
2876 bmcr |= BMCR_RESET;
2877
hayeswang43779f82014-01-02 11:25:10 +08002878 if (tp->mii.supports_gmii)
2879 r8152_mdio_write(tp, MII_CTRL1000, gbcr);
2880
hayeswangac718b62013-05-02 16:01:25 +00002881 r8152_mdio_write(tp, MII_ADVERTISE, anar);
2882 r8152_mdio_write(tp, MII_BMCR, bmcr);
2883
hayeswang216a8342016-01-07 17:51:11 +08002884 if (test_and_clear_bit(PHY_RESET, &tp->flags)) {
hayeswangaa66a5f2014-02-18 21:49:04 +08002885 int i;
2886
hayeswangaa66a5f2014-02-18 21:49:04 +08002887 for (i = 0; i < 50; i++) {
2888 msleep(20);
2889 if ((r8152_mdio_read(tp, MII_BMCR) & BMCR_RESET) == 0)
2890 break;
2891 }
2892 }
2893
hayeswangac718b62013-05-02 16:01:25 +00002894out:
hayeswangac718b62013-05-02 16:01:25 +00002895 return ret;
2896}
2897
hayeswangd70b1132014-09-19 15:17:18 +08002898static void rtl8152_up(struct r8152 *tp)
2899{
2900 if (test_bit(RTL8152_UNPLUG, &tp->flags))
2901 return;
2902
hayeswangcda9fb02016-01-07 17:51:12 +08002903 r8152_aldps_en(tp, false);
hayeswangd70b1132014-09-19 15:17:18 +08002904 r8152b_exit_oob(tp);
hayeswangcda9fb02016-01-07 17:51:12 +08002905 r8152_aldps_en(tp, true);
hayeswangd70b1132014-09-19 15:17:18 +08002906}
2907
hayeswangac718b62013-05-02 16:01:25 +00002908static void rtl8152_down(struct r8152 *tp)
2909{
hayeswang68714382014-04-11 17:54:31 +08002910 if (test_bit(RTL8152_UNPLUG, &tp->flags)) {
2911 rtl_drop_queued_tx(tp);
2912 return;
2913 }
2914
hayeswang00a5e362014-02-18 21:48:59 +08002915 r8152_power_cut_en(tp, false);
hayeswangcda9fb02016-01-07 17:51:12 +08002916 r8152_aldps_en(tp, false);
hayeswangac718b62013-05-02 16:01:25 +00002917 r8152b_enter_oob(tp);
hayeswangcda9fb02016-01-07 17:51:12 +08002918 r8152_aldps_en(tp, true);
hayeswangac718b62013-05-02 16:01:25 +00002919}
2920
hayeswangd70b1132014-09-19 15:17:18 +08002921static void rtl8153_up(struct r8152 *tp)
2922{
2923 if (test_bit(RTL8152_UNPLUG, &tp->flags))
2924 return;
2925
hayeswangb2143962015-07-24 13:54:23 +08002926 r8153_u1u2en(tp, false);
hayeswangcda9fb02016-01-07 17:51:12 +08002927 r8153_aldps_en(tp, false);
hayeswangd70b1132014-09-19 15:17:18 +08002928 r8153_first_init(tp);
hayeswangcda9fb02016-01-07 17:51:12 +08002929 r8153_aldps_en(tp, true);
hayeswangb2143962015-07-24 13:54:23 +08002930 r8153_u2p3en(tp, true);
2931 r8153_u1u2en(tp, true);
2932 usb_enable_lpm(tp->udev);
hayeswangd70b1132014-09-19 15:17:18 +08002933}
2934
hayeswang43779f82014-01-02 11:25:10 +08002935static void rtl8153_down(struct r8152 *tp)
2936{
hayeswang68714382014-04-11 17:54:31 +08002937 if (test_bit(RTL8152_UNPLUG, &tp->flags)) {
2938 rtl_drop_queued_tx(tp);
2939 return;
2940 }
2941
hayeswangb9702722014-02-18 21:49:00 +08002942 r8153_u1u2en(tp, false);
hayeswangb2143962015-07-24 13:54:23 +08002943 r8153_u2p3en(tp, false);
hayeswangb9702722014-02-18 21:49:00 +08002944 r8153_power_cut_en(tp, false);
hayeswangcda9fb02016-01-07 17:51:12 +08002945 r8153_aldps_en(tp, false);
hayeswang43779f82014-01-02 11:25:10 +08002946 r8153_enter_oob(tp);
hayeswangcda9fb02016-01-07 17:51:12 +08002947 r8153_aldps_en(tp, true);
hayeswang43779f82014-01-02 11:25:10 +08002948}
2949
hayeswang2dd49e02015-09-07 11:57:44 +08002950static bool rtl8152_in_nway(struct r8152 *tp)
2951{
2952 u16 nway_state;
2953
2954 ocp_write_word(tp, MCU_TYPE_PLA, PLA_OCP_GPHY_BASE, 0x2000);
2955 tp->ocp_base = 0x2000;
2956 ocp_write_byte(tp, MCU_TYPE_PLA, 0xb014, 0x4c); /* phy state */
2957 nway_state = ocp_read_word(tp, MCU_TYPE_PLA, 0xb01a);
2958
2959 /* bit 15: TXDIS_STATE, bit 14: ABD_STATE */
2960 if (nway_state & 0xc000)
2961 return false;
2962 else
2963 return true;
2964}
2965
2966static bool rtl8153_in_nway(struct r8152 *tp)
2967{
2968 u16 phy_state = ocp_reg_read(tp, OCP_PHY_STATE) & 0xff;
2969
2970 if (phy_state == TXDIS_STATE || phy_state == ABD_STATE)
2971 return false;
2972 else
2973 return true;
2974}
2975
hayeswangac718b62013-05-02 16:01:25 +00002976static void set_carrier(struct r8152 *tp)
2977{
2978 struct net_device *netdev = tp->netdev;
2979 u8 speed;
2980
2981 speed = rtl8152_get_speed(tp);
2982
2983 if (speed & LINK_STATUS) {
hayeswang51d979f2015-02-06 11:30:47 +08002984 if (!netif_carrier_ok(netdev)) {
hayeswangc81229c2014-01-02 11:22:42 +08002985 tp->rtl_ops.enable(tp);
hayeswangac718b62013-05-02 16:01:25 +00002986 set_bit(RTL8152_SET_RX_MODE, &tp->flags);
hayeswang41cec842015-07-24 13:54:25 +08002987 napi_disable(&tp->napi);
hayeswangac718b62013-05-02 16:01:25 +00002988 netif_carrier_on(netdev);
hayeswangaa2e0922015-01-09 10:26:35 +08002989 rtl_start_rx(tp);
hayeswang41cec842015-07-24 13:54:25 +08002990 napi_enable(&tp->napi);
hayeswangac718b62013-05-02 16:01:25 +00002991 }
2992 } else {
hayeswang51d979f2015-02-06 11:30:47 +08002993 if (netif_carrier_ok(netdev)) {
hayeswangac718b62013-05-02 16:01:25 +00002994 netif_carrier_off(netdev);
hayeswangd823ab62015-01-12 12:06:23 +08002995 napi_disable(&tp->napi);
hayeswangc81229c2014-01-02 11:22:42 +08002996 tp->rtl_ops.disable(tp);
hayeswangd823ab62015-01-12 12:06:23 +08002997 napi_enable(&tp->napi);
hayeswangac718b62013-05-02 16:01:25 +00002998 }
2999 }
hayeswangac718b62013-05-02 16:01:25 +00003000}
3001
3002static void rtl_work_func_t(struct work_struct *work)
3003{
3004 struct r8152 *tp = container_of(work, struct r8152, schedule.work);
3005
hayeswanga1f83fe2014-11-12 10:05:05 +08003006 /* If the device is unplugged or !netif_running(), the workqueue
3007 * doesn't need to wake the device, and could return directly.
3008 */
3009 if (test_bit(RTL8152_UNPLUG, &tp->flags) || !netif_running(tp->netdev))
3010 return;
3011
hayeswang9a4be1b2014-02-18 21:49:07 +08003012 if (usb_autopm_get_interface(tp->intf) < 0)
3013 return;
3014
hayeswangac718b62013-05-02 16:01:25 +00003015 if (!test_bit(WORK_ENABLE, &tp->flags))
3016 goto out1;
3017
hayeswangb5403272014-10-09 18:00:26 +08003018 if (!mutex_trylock(&tp->control)) {
3019 schedule_delayed_work(&tp->schedule, 0);
3020 goto out1;
3021 }
3022
hayeswang216a8342016-01-07 17:51:11 +08003023 if (test_and_clear_bit(RTL8152_LINK_CHG, &tp->flags))
hayeswang40a82912013-08-14 20:54:40 +08003024 set_carrier(tp);
hayeswangac718b62013-05-02 16:01:25 +00003025
hayeswang216a8342016-01-07 17:51:11 +08003026 if (test_and_clear_bit(RTL8152_SET_RX_MODE, &tp->flags))
hayeswangac718b62013-05-02 16:01:25 +00003027 _rtl8152_set_rx_mode(tp->netdev);
3028
hayeswangd823ab62015-01-12 12:06:23 +08003029 /* don't schedule napi before linking */
hayeswang216a8342016-01-07 17:51:11 +08003030 if (test_and_clear_bit(SCHEDULE_NAPI, &tp->flags) &&
3031 netif_carrier_ok(tp->netdev))
hayeswangd823ab62015-01-12 12:06:23 +08003032 napi_schedule(&tp->napi);
hayeswangaa66a5f2014-02-18 21:49:04 +08003033
hayeswang216a8342016-01-07 17:51:11 +08003034 if (test_and_clear_bit(PHY_RESET, &tp->flags))
hayeswangaa66a5f2014-02-18 21:49:04 +08003035 rtl_phy_reset(tp);
3036
hayeswangb5403272014-10-09 18:00:26 +08003037 mutex_unlock(&tp->control);
3038
hayeswangac718b62013-05-02 16:01:25 +00003039out1:
hayeswang9a4be1b2014-02-18 21:49:07 +08003040 usb_autopm_put_interface(tp->intf);
hayeswangac718b62013-05-02 16:01:25 +00003041}
3042
hayeswanga028a9e2016-06-13 17:49:36 +08003043static void rtl_hw_phy_work_func_t(struct work_struct *work)
3044{
3045 struct r8152 *tp = container_of(work, struct r8152, hw_phy_work.work);
3046
3047 if (test_bit(RTL8152_UNPLUG, &tp->flags))
3048 return;
3049
3050 if (usb_autopm_get_interface(tp->intf) < 0)
3051 return;
3052
3053 mutex_lock(&tp->control);
3054
3055 tp->rtl_ops.hw_phy_cfg(tp);
3056
hayeswangaa7e26b2016-06-13 17:49:38 +08003057 rtl8152_set_speed(tp, tp->autoneg, tp->speed, tp->duplex);
hayeswang9d21c0d2016-06-13 17:49:37 +08003058
hayeswanga028a9e2016-06-13 17:49:36 +08003059 mutex_unlock(&tp->control);
3060
3061 usb_autopm_put_interface(tp->intf);
3062}
3063
hayeswang5ee3c602016-01-07 17:12:17 +08003064#ifdef CONFIG_PM_SLEEP
3065static int rtl_notifier(struct notifier_block *nb, unsigned long action,
3066 void *data)
3067{
3068 struct r8152 *tp = container_of(nb, struct r8152, pm_notifier);
3069
3070 switch (action) {
3071 case PM_HIBERNATION_PREPARE:
3072 case PM_SUSPEND_PREPARE:
3073 usb_autopm_get_interface(tp->intf);
3074 break;
3075
3076 case PM_POST_HIBERNATION:
3077 case PM_POST_SUSPEND:
3078 usb_autopm_put_interface(tp->intf);
3079 break;
3080
3081 case PM_POST_RESTORE:
3082 case PM_RESTORE_PREPARE:
3083 default:
3084 break;
3085 }
3086
3087 return NOTIFY_DONE;
3088}
3089#endif
3090
hayeswangac718b62013-05-02 16:01:25 +00003091static int rtl8152_open(struct net_device *netdev)
3092{
3093 struct r8152 *tp = netdev_priv(netdev);
3094 int res = 0;
3095
hayeswang7e9da482014-02-18 21:49:05 +08003096 res = alloc_all_mem(tp);
3097 if (res)
3098 goto out;
3099
hayeswang51d979f2015-02-06 11:30:47 +08003100 netif_carrier_off(netdev);
hayeswangf4c74762014-10-29 11:12:16 +08003101
hayeswang9a4be1b2014-02-18 21:49:07 +08003102 res = usb_autopm_get_interface(tp->intf);
3103 if (res < 0) {
3104 free_all_mem(tp);
3105 goto out;
3106 }
3107
hayeswangb5403272014-10-09 18:00:26 +08003108 mutex_lock(&tp->control);
3109
hayeswang7e9da482014-02-18 21:49:05 +08003110 tp->rtl_ops.up(tp);
3111
hayeswang40a82912013-08-14 20:54:40 +08003112 netif_carrier_off(netdev);
hayeswangac718b62013-05-02 16:01:25 +00003113 netif_start_queue(netdev);
3114 set_bit(WORK_ENABLE, &tp->flags);
hayeswangdb8515e2014-03-06 15:07:16 +08003115
hayeswang3d55f442014-02-06 11:55:48 +08003116 res = usb_submit_urb(tp->intr_urb, GFP_KERNEL);
3117 if (res) {
3118 if (res == -ENODEV)
3119 netif_device_detach(tp->netdev);
3120 netif_warn(tp, ifup, netdev, "intr_urb submit failed: %d\n",
3121 res);
hayeswang7e9da482014-02-18 21:49:05 +08003122 free_all_mem(tp);
hayeswang93ffbea2014-11-05 10:17:02 +08003123 } else {
hayeswangd823ab62015-01-12 12:06:23 +08003124 napi_enable(&tp->napi);
hayeswang3d55f442014-02-06 11:55:48 +08003125 }
3126
hayeswangb5403272014-10-09 18:00:26 +08003127 mutex_unlock(&tp->control);
3128
hayeswang9a4be1b2014-02-18 21:49:07 +08003129 usb_autopm_put_interface(tp->intf);
hayeswang5ee3c602016-01-07 17:12:17 +08003130#ifdef CONFIG_PM_SLEEP
3131 tp->pm_notifier.notifier_call = rtl_notifier;
3132 register_pm_notifier(&tp->pm_notifier);
3133#endif
hayeswangac718b62013-05-02 16:01:25 +00003134
hayeswang7e9da482014-02-18 21:49:05 +08003135out:
hayeswangac718b62013-05-02 16:01:25 +00003136 return res;
3137}
3138
3139static int rtl8152_close(struct net_device *netdev)
3140{
3141 struct r8152 *tp = netdev_priv(netdev);
3142 int res = 0;
3143
hayeswang5ee3c602016-01-07 17:12:17 +08003144#ifdef CONFIG_PM_SLEEP
3145 unregister_pm_notifier(&tp->pm_notifier);
3146#endif
hayeswangd823ab62015-01-12 12:06:23 +08003147 napi_disable(&tp->napi);
hayeswangac718b62013-05-02 16:01:25 +00003148 clear_bit(WORK_ENABLE, &tp->flags);
hayeswang3d55f442014-02-06 11:55:48 +08003149 usb_kill_urb(tp->intr_urb);
hayeswangac718b62013-05-02 16:01:25 +00003150 cancel_delayed_work_sync(&tp->schedule);
3151 netif_stop_queue(netdev);
hayeswang9a4be1b2014-02-18 21:49:07 +08003152
3153 res = usb_autopm_get_interface(tp->intf);
hayeswang53543db2015-02-06 11:30:48 +08003154 if (res < 0 || test_bit(RTL8152_UNPLUG, &tp->flags)) {
hayeswang9a4be1b2014-02-18 21:49:07 +08003155 rtl_drop_queued_tx(tp);
hayeswangd823ab62015-01-12 12:06:23 +08003156 rtl_stop_rx(tp);
hayeswang9a4be1b2014-02-18 21:49:07 +08003157 } else {
hayeswangb5403272014-10-09 18:00:26 +08003158 mutex_lock(&tp->control);
3159
hayeswang9a4be1b2014-02-18 21:49:07 +08003160 tp->rtl_ops.down(tp);
hayeswangb5403272014-10-09 18:00:26 +08003161
3162 mutex_unlock(&tp->control);
3163
hayeswang9a4be1b2014-02-18 21:49:07 +08003164 usb_autopm_put_interface(tp->intf);
3165 }
hayeswangac718b62013-05-02 16:01:25 +00003166
hayeswang7e9da482014-02-18 21:49:05 +08003167 free_all_mem(tp);
3168
hayeswangac718b62013-05-02 16:01:25 +00003169 return res;
3170}
3171
hayeswangd24f6132014-09-25 20:54:01 +08003172static inline void r8152_mmd_indirect(struct r8152 *tp, u16 dev, u16 reg)
hayeswangac718b62013-05-02 16:01:25 +00003173{
hayeswangd24f6132014-09-25 20:54:01 +08003174 ocp_reg_write(tp, OCP_EEE_AR, FUN_ADDR | dev);
3175 ocp_reg_write(tp, OCP_EEE_DATA, reg);
3176 ocp_reg_write(tp, OCP_EEE_AR, FUN_DATA | dev);
3177}
3178
3179static u16 r8152_mmd_read(struct r8152 *tp, u16 dev, u16 reg)
3180{
3181 u16 data;
3182
3183 r8152_mmd_indirect(tp, dev, reg);
3184 data = ocp_reg_read(tp, OCP_EEE_DATA);
3185 ocp_reg_write(tp, OCP_EEE_AR, 0x0000);
3186
3187 return data;
3188}
3189
3190static void r8152_mmd_write(struct r8152 *tp, u16 dev, u16 reg, u16 data)
3191{
3192 r8152_mmd_indirect(tp, dev, reg);
3193 ocp_reg_write(tp, OCP_EEE_DATA, data);
3194 ocp_reg_write(tp, OCP_EEE_AR, 0x0000);
3195}
3196
3197static void r8152_eee_en(struct r8152 *tp, bool enable)
3198{
3199 u16 config1, config2, config3;
hayeswang45f4a192014-01-06 17:08:41 +08003200 u32 ocp_data;
hayeswangac718b62013-05-02 16:01:25 +00003201
3202 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_EEE_CR);
hayeswangd24f6132014-09-25 20:54:01 +08003203 config1 = ocp_reg_read(tp, OCP_EEE_CONFIG1) & ~sd_rise_time_mask;
3204 config2 = ocp_reg_read(tp, OCP_EEE_CONFIG2);
3205 config3 = ocp_reg_read(tp, OCP_EEE_CONFIG3) & ~fast_snr_mask;
3206
3207 if (enable) {
3208 ocp_data |= EEE_RX_EN | EEE_TX_EN;
3209 config1 |= EEE_10_CAP | EEE_NWAY_EN | TX_QUIET_EN | RX_QUIET_EN;
3210 config1 |= sd_rise_time(1);
3211 config2 |= RG_DACQUIET_EN | RG_LDVQUIET_EN;
3212 config3 |= fast_snr(42);
3213 } else {
3214 ocp_data &= ~(EEE_RX_EN | EEE_TX_EN);
3215 config1 &= ~(EEE_10_CAP | EEE_NWAY_EN | TX_QUIET_EN |
3216 RX_QUIET_EN);
3217 config1 |= sd_rise_time(7);
3218 config2 &= ~(RG_DACQUIET_EN | RG_LDVQUIET_EN);
3219 config3 |= fast_snr(511);
3220 }
3221
hayeswangac718b62013-05-02 16:01:25 +00003222 ocp_write_word(tp, MCU_TYPE_PLA, PLA_EEE_CR, ocp_data);
hayeswangd24f6132014-09-25 20:54:01 +08003223 ocp_reg_write(tp, OCP_EEE_CONFIG1, config1);
3224 ocp_reg_write(tp, OCP_EEE_CONFIG2, config2);
3225 ocp_reg_write(tp, OCP_EEE_CONFIG3, config3);
3226}
3227
3228static void r8152b_enable_eee(struct r8152 *tp)
3229{
3230 r8152_eee_en(tp, true);
3231 r8152_mmd_write(tp, MDIO_MMD_AN, MDIO_AN_EEE_ADV, MDIO_EEE_100TX);
3232}
3233
3234static void r8153_eee_en(struct r8152 *tp, bool enable)
3235{
3236 u32 ocp_data;
3237 u16 config;
3238
3239 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_EEE_CR);
3240 config = ocp_reg_read(tp, OCP_EEE_CFG);
3241
3242 if (enable) {
3243 ocp_data |= EEE_RX_EN | EEE_TX_EN;
3244 config |= EEE10_EN;
3245 } else {
3246 ocp_data &= ~(EEE_RX_EN | EEE_TX_EN);
3247 config &= ~EEE10_EN;
3248 }
3249
3250 ocp_write_word(tp, MCU_TYPE_PLA, PLA_EEE_CR, ocp_data);
3251 ocp_reg_write(tp, OCP_EEE_CFG, config);
hayeswangac718b62013-05-02 16:01:25 +00003252}
3253
hayeswang43779f82014-01-02 11:25:10 +08003254static void r8153_enable_eee(struct r8152 *tp)
3255{
hayeswangd24f6132014-09-25 20:54:01 +08003256 r8153_eee_en(tp, true);
3257 ocp_reg_write(tp, OCP_EEE_ADV, MDIO_EEE_1000T | MDIO_EEE_100TX);
hayeswang43779f82014-01-02 11:25:10 +08003258}
3259
hayeswangac718b62013-05-02 16:01:25 +00003260static void r8152b_enable_fc(struct r8152 *tp)
3261{
3262 u16 anar;
3263
3264 anar = r8152_mdio_read(tp, MII_ADVERTISE);
3265 anar |= ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM;
3266 r8152_mdio_write(tp, MII_ADVERTISE, anar);
3267}
3268
hayeswang4f1d4d52014-03-11 16:24:19 +08003269static void rtl_tally_reset(struct r8152 *tp)
3270{
3271 u32 ocp_data;
3272
3273 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_RSTTALLY);
3274 ocp_data |= TALLY_RESET;
3275 ocp_write_word(tp, MCU_TYPE_PLA, PLA_RSTTALLY, ocp_data);
3276}
3277
hayeswangac718b62013-05-02 16:01:25 +00003278static void r8152b_init(struct r8152 *tp)
3279{
hayeswangebc2ec42013-08-14 20:54:38 +08003280 u32 ocp_data;
hayeswangac718b62013-05-02 16:01:25 +00003281
hayeswang68714382014-04-11 17:54:31 +08003282 if (test_bit(RTL8152_UNPLUG, &tp->flags))
3283 return;
3284
hayeswangcda9fb02016-01-07 17:51:12 +08003285 r8152_aldps_en(tp, false);
hayeswangd70b1132014-09-19 15:17:18 +08003286
hayeswangac718b62013-05-02 16:01:25 +00003287 if (tp->version == RTL_VER_01) {
3288 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_LED_FEATURE);
3289 ocp_data &= ~LED_MODE_MASK;
3290 ocp_write_word(tp, MCU_TYPE_PLA, PLA_LED_FEATURE, ocp_data);
3291 }
3292
hayeswang00a5e362014-02-18 21:48:59 +08003293 r8152_power_cut_en(tp, false);
hayeswangac718b62013-05-02 16:01:25 +00003294
hayeswangac718b62013-05-02 16:01:25 +00003295 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_PHY_PWR);
3296 ocp_data |= TX_10M_IDLE_EN | PFM_PWM_SWITCH;
3297 ocp_write_word(tp, MCU_TYPE_PLA, PLA_PHY_PWR, ocp_data);
3298 ocp_data = ocp_read_dword(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL);
3299 ocp_data &= ~MCU_CLK_RATIO_MASK;
3300 ocp_data |= MCU_CLK_RATIO | D3_CLK_GATED_EN;
3301 ocp_write_dword(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL, ocp_data);
3302 ocp_data = GPHY_STS_MSK | SPEED_DOWN_MSK |
3303 SPDWN_RXDV_MSK | SPDWN_LINKCHG_MSK;
3304 ocp_write_word(tp, MCU_TYPE_PLA, PLA_GPHY_INTR_IMR, ocp_data);
3305
3306 r8152b_enable_eee(tp);
hayeswangcda9fb02016-01-07 17:51:12 +08003307 r8152_aldps_en(tp, true);
hayeswangac718b62013-05-02 16:01:25 +00003308 r8152b_enable_fc(tp);
hayeswang4f1d4d52014-03-11 16:24:19 +08003309 rtl_tally_reset(tp);
hayeswangac718b62013-05-02 16:01:25 +00003310
hayeswangebc2ec42013-08-14 20:54:38 +08003311 /* enable rx aggregation */
hayeswangac718b62013-05-02 16:01:25 +00003312 ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_USB_CTRL);
hayeswange90fba82015-07-31 11:23:39 +08003313 ocp_data &= ~(RX_AGG_DISABLE | RX_ZERO_EN);
hayeswangac718b62013-05-02 16:01:25 +00003314 ocp_write_word(tp, MCU_TYPE_USB, USB_USB_CTRL, ocp_data);
3315}
3316
hayeswang43779f82014-01-02 11:25:10 +08003317static void r8153_init(struct r8152 *tp)
3318{
3319 u32 ocp_data;
3320 int i;
3321
hayeswang68714382014-04-11 17:54:31 +08003322 if (test_bit(RTL8152_UNPLUG, &tp->flags))
3323 return;
3324
hayeswangcda9fb02016-01-07 17:51:12 +08003325 r8153_aldps_en(tp, false);
hayeswangb9702722014-02-18 21:49:00 +08003326 r8153_u1u2en(tp, false);
hayeswang43779f82014-01-02 11:25:10 +08003327
3328 for (i = 0; i < 500; i++) {
3329 if (ocp_read_word(tp, MCU_TYPE_PLA, PLA_BOOT_CTRL) &
3330 AUTOLOAD_DONE)
3331 break;
3332 msleep(20);
3333 }
3334
3335 for (i = 0; i < 500; i++) {
3336 ocp_data = ocp_reg_read(tp, OCP_PHY_STATUS) & PHY_STAT_MASK;
3337 if (ocp_data == PHY_STAT_LAN_ON || ocp_data == PHY_STAT_PWRDN)
3338 break;
3339 msleep(20);
3340 }
3341
hayeswangb2143962015-07-24 13:54:23 +08003342 usb_disable_lpm(tp->udev);
hayeswangb9702722014-02-18 21:49:00 +08003343 r8153_u2p3en(tp, false);
hayeswang43779f82014-01-02 11:25:10 +08003344
hayeswang65bab842015-02-12 16:20:46 +08003345 if (tp->version == RTL_VER_04) {
3346 ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_SSPHYLINK2);
3347 ocp_data &= ~pwd_dn_scale_mask;
3348 ocp_data |= pwd_dn_scale(96);
3349 ocp_write_word(tp, MCU_TYPE_USB, USB_SSPHYLINK2, ocp_data);
3350
3351 ocp_data = ocp_read_byte(tp, MCU_TYPE_USB, USB_USB2PHY);
3352 ocp_data |= USB2PHY_L1 | USB2PHY_SUSPEND;
3353 ocp_write_byte(tp, MCU_TYPE_USB, USB_USB2PHY, ocp_data);
3354 } else if (tp->version == RTL_VER_05) {
3355 ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_DMY_REG0);
3356 ocp_data &= ~ECM_ALDPS;
3357 ocp_write_byte(tp, MCU_TYPE_PLA, PLA_DMY_REG0, ocp_data);
3358
3359 ocp_data = ocp_read_byte(tp, MCU_TYPE_USB, USB_CSR_DUMMY1);
3360 if (ocp_read_word(tp, MCU_TYPE_USB, USB_BURST_SIZE) == 0)
3361 ocp_data &= ~DYNAMIC_BURST;
3362 else
3363 ocp_data |= DYNAMIC_BURST;
3364 ocp_write_byte(tp, MCU_TYPE_USB, USB_CSR_DUMMY1, ocp_data);
hayeswangfb02eb42015-07-22 15:27:41 +08003365 } else if (tp->version == RTL_VER_06) {
3366 ocp_data = ocp_read_byte(tp, MCU_TYPE_USB, USB_CSR_DUMMY1);
3367 if (ocp_read_word(tp, MCU_TYPE_USB, USB_BURST_SIZE) == 0)
3368 ocp_data &= ~DYNAMIC_BURST;
3369 else
3370 ocp_data |= DYNAMIC_BURST;
3371 ocp_write_byte(tp, MCU_TYPE_USB, USB_CSR_DUMMY1, ocp_data);
hayeswang65bab842015-02-12 16:20:46 +08003372 }
3373
3374 ocp_data = ocp_read_byte(tp, MCU_TYPE_USB, USB_CSR_DUMMY2);
3375 ocp_data |= EP4_FULL_FC;
3376 ocp_write_byte(tp, MCU_TYPE_USB, USB_CSR_DUMMY2, ocp_data);
3377
hayeswang43779f82014-01-02 11:25:10 +08003378 ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_WDT11_CTRL);
3379 ocp_data &= ~TIMER11_EN;
3380 ocp_write_word(tp, MCU_TYPE_USB, USB_WDT11_CTRL, ocp_data);
3381
hayeswang43779f82014-01-02 11:25:10 +08003382 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_LED_FEATURE);
3383 ocp_data &= ~LED_MODE_MASK;
3384 ocp_write_word(tp, MCU_TYPE_PLA, PLA_LED_FEATURE, ocp_data);
3385
hayeswang65bab842015-02-12 16:20:46 +08003386 ocp_data = FIFO_EMPTY_1FB | ROK_EXIT_LPM;
Oliver Neukum2b84af94a2016-05-02 13:06:14 +02003387 if (tp->version == RTL_VER_04 && tp->udev->speed < USB_SPEED_SUPER)
hayeswang43779f82014-01-02 11:25:10 +08003388 ocp_data |= LPM_TIMER_500MS;
hayeswang34203e22015-02-06 11:30:46 +08003389 else
3390 ocp_data |= LPM_TIMER_500US;
hayeswang43779f82014-01-02 11:25:10 +08003391 ocp_write_byte(tp, MCU_TYPE_USB, USB_LPM_CTRL, ocp_data);
3392
3393 ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_AFE_CTRL2);
3394 ocp_data &= ~SEN_VAL_MASK;
3395 ocp_data |= SEN_VAL_NORMAL | SEL_RXIDLE;
3396 ocp_write_word(tp, MCU_TYPE_USB, USB_AFE_CTRL2, ocp_data);
3397
hayeswang65bab842015-02-12 16:20:46 +08003398 ocp_write_word(tp, MCU_TYPE_USB, USB_CONNECT_TIMER, 0x0001);
3399
hayeswangb9702722014-02-18 21:49:00 +08003400 r8153_power_cut_en(tp, false);
3401 r8153_u1u2en(tp, true);
hayeswang43779f82014-01-02 11:25:10 +08003402
hayeswang43779f82014-01-02 11:25:10 +08003403 ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL, ALDPS_SPDWN_RATIO);
3404 ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL2, EEE_SPDWN_RATIO);
3405 ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL3,
3406 PKT_AVAIL_SPDWN_EN | SUSPEND_SPDWN_EN |
3407 U1U2_SPDWN_EN | L1_SPDWN_EN);
3408 ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL4,
3409 PWRSAVE_SPDWN_EN | RXDV_SPDWN_EN | TX10MIDLE_EN |
3410 TP100_SPDWN_EN | TP500_SPDWN_EN | TP1000_SPDWN_EN |
3411 EEE_SPDWN_EN);
3412
3413 r8153_enable_eee(tp);
hayeswangcda9fb02016-01-07 17:51:12 +08003414 r8153_aldps_en(tp, true);
hayeswang43779f82014-01-02 11:25:10 +08003415 r8152b_enable_fc(tp);
hayeswang4f1d4d52014-03-11 16:24:19 +08003416 rtl_tally_reset(tp);
hayeswangb2143962015-07-24 13:54:23 +08003417 r8153_u2p3en(tp, true);
hayeswang43779f82014-01-02 11:25:10 +08003418}
3419
hayeswange5011392015-07-29 20:39:08 +08003420static int rtl8152_pre_reset(struct usb_interface *intf)
3421{
3422 struct r8152 *tp = usb_get_intfdata(intf);
3423 struct net_device *netdev;
3424
3425 if (!tp)
3426 return 0;
3427
3428 netdev = tp->netdev;
3429 if (!netif_running(netdev))
3430 return 0;
3431
3432 napi_disable(&tp->napi);
3433 clear_bit(WORK_ENABLE, &tp->flags);
3434 usb_kill_urb(tp->intr_urb);
3435 cancel_delayed_work_sync(&tp->schedule);
3436 if (netif_carrier_ok(netdev)) {
3437 netif_stop_queue(netdev);
3438 mutex_lock(&tp->control);
3439 tp->rtl_ops.disable(tp);
3440 mutex_unlock(&tp->control);
3441 }
3442
3443 return 0;
3444}
3445
3446static int rtl8152_post_reset(struct usb_interface *intf)
3447{
3448 struct r8152 *tp = usb_get_intfdata(intf);
3449 struct net_device *netdev;
3450
3451 if (!tp)
3452 return 0;
3453
3454 netdev = tp->netdev;
3455 if (!netif_running(netdev))
3456 return 0;
3457
3458 set_bit(WORK_ENABLE, &tp->flags);
3459 if (netif_carrier_ok(netdev)) {
3460 mutex_lock(&tp->control);
3461 tp->rtl_ops.enable(tp);
3462 rtl8152_set_rx_mode(netdev);
3463 mutex_unlock(&tp->control);
3464 netif_wake_queue(netdev);
3465 }
3466
3467 napi_enable(&tp->napi);
3468
3469 return 0;
hayeswangac718b62013-05-02 16:01:25 +00003470}
3471
hayeswang2dd49e02015-09-07 11:57:44 +08003472static bool delay_autosuspend(struct r8152 *tp)
3473{
3474 bool sw_linking = !!netif_carrier_ok(tp->netdev);
3475 bool hw_linking = !!(rtl8152_get_speed(tp) & LINK_STATUS);
3476
3477 /* This means a linking change occurs and the driver doesn't detect it,
3478 * yet. If the driver has disabled tx/rx and hw is linking on, the
3479 * device wouldn't wake up by receiving any packet.
3480 */
3481 if (work_busy(&tp->schedule.work) || sw_linking != hw_linking)
3482 return true;
3483
3484 /* If the linking down is occurred by nway, the device may miss the
3485 * linking change event. And it wouldn't wake when linking on.
3486 */
3487 if (!sw_linking && tp->rtl_ops.in_nway(tp))
3488 return true;
3489 else
3490 return false;
3491}
3492
hayeswangac718b62013-05-02 16:01:25 +00003493static int rtl8152_suspend(struct usb_interface *intf, pm_message_t message)
3494{
3495 struct r8152 *tp = usb_get_intfdata(intf);
hayeswang6cc69f22014-10-17 16:55:08 +08003496 struct net_device *netdev = tp->netdev;
3497 int ret = 0;
hayeswangac718b62013-05-02 16:01:25 +00003498
hayeswangb5403272014-10-09 18:00:26 +08003499 mutex_lock(&tp->control);
3500
hayeswang6cc69f22014-10-17 16:55:08 +08003501 if (PMSG_IS_AUTO(message)) {
hayeswang2dd49e02015-09-07 11:57:44 +08003502 if (netif_running(netdev) && delay_autosuspend(tp)) {
hayeswang6cc69f22014-10-17 16:55:08 +08003503 ret = -EBUSY;
3504 goto out1;
3505 }
hayeswangac718b62013-05-02 16:01:25 +00003506
hayeswang6cc69f22014-10-17 16:55:08 +08003507 set_bit(SELECTIVE_SUSPEND, &tp->flags);
3508 } else {
3509 netif_device_detach(netdev);
3510 }
3511
hayeswange3bd1a82014-10-29 11:12:17 +08003512 if (netif_running(netdev) && test_bit(WORK_ENABLE, &tp->flags)) {
hayeswangac718b62013-05-02 16:01:25 +00003513 clear_bit(WORK_ENABLE, &tp->flags);
hayeswang40a82912013-08-14 20:54:40 +08003514 usb_kill_urb(tp->intr_urb);
hayeswangd823ab62015-01-12 12:06:23 +08003515 napi_disable(&tp->napi);
hayeswang9a4be1b2014-02-18 21:49:07 +08003516 if (test_bit(SELECTIVE_SUSPEND, &tp->flags)) {
hayeswang445f7f42014-09-23 16:31:47 +08003517 rtl_stop_rx(tp);
hayeswang9a4be1b2014-02-18 21:49:07 +08003518 rtl_runtime_suspend_enable(tp, true);
3519 } else {
hayeswang6cc69f22014-10-17 16:55:08 +08003520 cancel_delayed_work_sync(&tp->schedule);
hayeswang9a4be1b2014-02-18 21:49:07 +08003521 tp->rtl_ops.down(tp);
hayeswang9a4be1b2014-02-18 21:49:07 +08003522 }
hayeswangd823ab62015-01-12 12:06:23 +08003523 napi_enable(&tp->napi);
hayeswangac718b62013-05-02 16:01:25 +00003524 }
hayeswang6cc69f22014-10-17 16:55:08 +08003525out1:
hayeswangb5403272014-10-09 18:00:26 +08003526 mutex_unlock(&tp->control);
3527
hayeswang6cc69f22014-10-17 16:55:08 +08003528 return ret;
hayeswangac718b62013-05-02 16:01:25 +00003529}
3530
3531static int rtl8152_resume(struct usb_interface *intf)
3532{
3533 struct r8152 *tp = usb_get_intfdata(intf);
3534
hayeswangb5403272014-10-09 18:00:26 +08003535 mutex_lock(&tp->control);
3536
hayeswang9a4be1b2014-02-18 21:49:07 +08003537 if (!test_bit(SELECTIVE_SUSPEND, &tp->flags)) {
3538 tp->rtl_ops.init(tp);
hayeswanga028a9e2016-06-13 17:49:36 +08003539 queue_delayed_work(system_long_wq, &tp->hw_phy_work, 0);
hayeswang9a4be1b2014-02-18 21:49:07 +08003540 netif_device_attach(tp->netdev);
3541 }
3542
Peter Wu90186af2015-12-08 12:17:42 +01003543 if (netif_running(tp->netdev) && tp->netdev->flags & IFF_UP) {
hayeswang9a4be1b2014-02-18 21:49:07 +08003544 if (test_bit(SELECTIVE_SUSPEND, &tp->flags)) {
3545 rtl_runtime_suspend_enable(tp, false);
3546 clear_bit(SELECTIVE_SUSPEND, &tp->flags);
hayeswang41cec842015-07-24 13:54:25 +08003547 napi_disable(&tp->napi);
hayeswang445f7f42014-09-23 16:31:47 +08003548 set_bit(WORK_ENABLE, &tp->flags);
hayeswang51d979f2015-02-06 11:30:47 +08003549 if (netif_carrier_ok(tp->netdev))
hayeswang445f7f42014-09-23 16:31:47 +08003550 rtl_start_rx(tp);
hayeswang41cec842015-07-24 13:54:25 +08003551 napi_enable(&tp->napi);
hayeswang9a4be1b2014-02-18 21:49:07 +08003552 } else {
3553 tp->rtl_ops.up(tp);
hayeswang445f7f42014-09-23 16:31:47 +08003554 netif_carrier_off(tp->netdev);
3555 set_bit(WORK_ENABLE, &tp->flags);
hayeswang9a4be1b2014-02-18 21:49:07 +08003556 }
hayeswang40a82912013-08-14 20:54:40 +08003557 usb_submit_urb(tp->intr_urb, GFP_KERNEL);
hayeswang923e1ee2014-10-29 11:12:15 +08003558 } else if (test_bit(SELECTIVE_SUSPEND, &tp->flags)) {
Peter Wu90186af2015-12-08 12:17:42 +01003559 if (tp->netdev->flags & IFF_UP)
3560 rtl_runtime_suspend_enable(tp, false);
hayeswang923e1ee2014-10-29 11:12:15 +08003561 clear_bit(SELECTIVE_SUSPEND, &tp->flags);
hayeswangac718b62013-05-02 16:01:25 +00003562 }
3563
hayeswangb5403272014-10-09 18:00:26 +08003564 mutex_unlock(&tp->control);
3565
hayeswangac718b62013-05-02 16:01:25 +00003566 return 0;
3567}
3568
hayeswang7ec25412016-01-04 14:38:46 +08003569static int rtl8152_reset_resume(struct usb_interface *intf)
3570{
3571 struct r8152 *tp = usb_get_intfdata(intf);
3572
3573 clear_bit(SELECTIVE_SUSPEND, &tp->flags);
3574 return rtl8152_resume(intf);
3575}
3576
hayeswang21ff2e82014-02-18 21:49:06 +08003577static void rtl8152_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
3578{
3579 struct r8152 *tp = netdev_priv(dev);
3580
hayeswang9a4be1b2014-02-18 21:49:07 +08003581 if (usb_autopm_get_interface(tp->intf) < 0)
3582 return;
3583
hayeswang7daed8d2015-07-24 13:54:24 +08003584 if (!rtl_can_wakeup(tp)) {
3585 wol->supported = 0;
3586 wol->wolopts = 0;
3587 } else {
3588 mutex_lock(&tp->control);
3589 wol->supported = WAKE_ANY;
3590 wol->wolopts = __rtl_get_wol(tp);
3591 mutex_unlock(&tp->control);
3592 }
hayeswangb5403272014-10-09 18:00:26 +08003593
hayeswang9a4be1b2014-02-18 21:49:07 +08003594 usb_autopm_put_interface(tp->intf);
hayeswang21ff2e82014-02-18 21:49:06 +08003595}
3596
3597static int rtl8152_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
3598{
3599 struct r8152 *tp = netdev_priv(dev);
hayeswang9a4be1b2014-02-18 21:49:07 +08003600 int ret;
3601
hayeswang7daed8d2015-07-24 13:54:24 +08003602 if (!rtl_can_wakeup(tp))
3603 return -EOPNOTSUPP;
3604
hayeswang9a4be1b2014-02-18 21:49:07 +08003605 ret = usb_autopm_get_interface(tp->intf);
3606 if (ret < 0)
3607 goto out_set_wol;
hayeswang21ff2e82014-02-18 21:49:06 +08003608
hayeswangb5403272014-10-09 18:00:26 +08003609 mutex_lock(&tp->control);
3610
hayeswang21ff2e82014-02-18 21:49:06 +08003611 __rtl_set_wol(tp, wol->wolopts);
3612 tp->saved_wolopts = wol->wolopts & WAKE_ANY;
3613
hayeswangb5403272014-10-09 18:00:26 +08003614 mutex_unlock(&tp->control);
3615
hayeswang9a4be1b2014-02-18 21:49:07 +08003616 usb_autopm_put_interface(tp->intf);
3617
3618out_set_wol:
3619 return ret;
hayeswang21ff2e82014-02-18 21:49:06 +08003620}
3621
hayeswanga5ec27c2014-02-18 21:49:11 +08003622static u32 rtl8152_get_msglevel(struct net_device *dev)
3623{
3624 struct r8152 *tp = netdev_priv(dev);
3625
3626 return tp->msg_enable;
3627}
3628
3629static void rtl8152_set_msglevel(struct net_device *dev, u32 value)
3630{
3631 struct r8152 *tp = netdev_priv(dev);
3632
3633 tp->msg_enable = value;
3634}
3635
hayeswangac718b62013-05-02 16:01:25 +00003636static void rtl8152_get_drvinfo(struct net_device *netdev,
3637 struct ethtool_drvinfo *info)
3638{
3639 struct r8152 *tp = netdev_priv(netdev);
3640
hayeswangb0b46c72014-08-26 10:08:23 +08003641 strlcpy(info->driver, MODULENAME, sizeof(info->driver));
3642 strlcpy(info->version, DRIVER_VERSION, sizeof(info->version));
hayeswangac718b62013-05-02 16:01:25 +00003643 usb_make_path(tp->udev, info->bus_info, sizeof(info->bus_info));
3644}
3645
3646static
3647int rtl8152_get_settings(struct net_device *netdev, struct ethtool_cmd *cmd)
3648{
3649 struct r8152 *tp = netdev_priv(netdev);
hayeswang8d4a4d72014-10-09 18:00:25 +08003650 int ret;
hayeswangac718b62013-05-02 16:01:25 +00003651
3652 if (!tp->mii.mdio_read)
3653 return -EOPNOTSUPP;
3654
hayeswang8d4a4d72014-10-09 18:00:25 +08003655 ret = usb_autopm_get_interface(tp->intf);
3656 if (ret < 0)
3657 goto out;
3658
hayeswangb5403272014-10-09 18:00:26 +08003659 mutex_lock(&tp->control);
3660
hayeswang8d4a4d72014-10-09 18:00:25 +08003661 ret = mii_ethtool_gset(&tp->mii, cmd);
3662
hayeswangb5403272014-10-09 18:00:26 +08003663 mutex_unlock(&tp->control);
3664
hayeswang8d4a4d72014-10-09 18:00:25 +08003665 usb_autopm_put_interface(tp->intf);
3666
3667out:
3668 return ret;
hayeswangac718b62013-05-02 16:01:25 +00003669}
3670
3671static int rtl8152_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
3672{
3673 struct r8152 *tp = netdev_priv(dev);
hayeswang9a4be1b2014-02-18 21:49:07 +08003674 int ret;
hayeswangac718b62013-05-02 16:01:25 +00003675
hayeswang9a4be1b2014-02-18 21:49:07 +08003676 ret = usb_autopm_get_interface(tp->intf);
3677 if (ret < 0)
3678 goto out;
3679
hayeswangb5403272014-10-09 18:00:26 +08003680 mutex_lock(&tp->control);
3681
hayeswang9a4be1b2014-02-18 21:49:07 +08003682 ret = rtl8152_set_speed(tp, cmd->autoneg, cmd->speed, cmd->duplex);
hayeswangaa7e26b2016-06-13 17:49:38 +08003683 if (!ret) {
3684 tp->autoneg = cmd->autoneg;
3685 tp->speed = cmd->speed;
3686 tp->duplex = cmd->duplex;
3687 }
hayeswang9a4be1b2014-02-18 21:49:07 +08003688
hayeswangb5403272014-10-09 18:00:26 +08003689 mutex_unlock(&tp->control);
3690
hayeswang9a4be1b2014-02-18 21:49:07 +08003691 usb_autopm_put_interface(tp->intf);
3692
3693out:
3694 return ret;
hayeswangac718b62013-05-02 16:01:25 +00003695}
3696
hayeswang4f1d4d52014-03-11 16:24:19 +08003697static const char rtl8152_gstrings[][ETH_GSTRING_LEN] = {
3698 "tx_packets",
3699 "rx_packets",
3700 "tx_errors",
3701 "rx_errors",
3702 "rx_missed",
3703 "align_errors",
3704 "tx_single_collisions",
3705 "tx_multi_collisions",
3706 "rx_unicast",
3707 "rx_broadcast",
3708 "rx_multicast",
3709 "tx_aborted",
3710 "tx_underrun",
3711};
3712
3713static int rtl8152_get_sset_count(struct net_device *dev, int sset)
3714{
3715 switch (sset) {
3716 case ETH_SS_STATS:
3717 return ARRAY_SIZE(rtl8152_gstrings);
3718 default:
3719 return -EOPNOTSUPP;
3720 }
3721}
3722
3723static void rtl8152_get_ethtool_stats(struct net_device *dev,
3724 struct ethtool_stats *stats, u64 *data)
3725{
3726 struct r8152 *tp = netdev_priv(dev);
3727 struct tally_counter tally;
3728
hayeswang0b030242014-07-08 14:49:28 +08003729 if (usb_autopm_get_interface(tp->intf) < 0)
3730 return;
3731
hayeswang4f1d4d52014-03-11 16:24:19 +08003732 generic_ocp_read(tp, PLA_TALLYCNT, sizeof(tally), &tally, MCU_TYPE_PLA);
3733
hayeswang0b030242014-07-08 14:49:28 +08003734 usb_autopm_put_interface(tp->intf);
3735
hayeswang4f1d4d52014-03-11 16:24:19 +08003736 data[0] = le64_to_cpu(tally.tx_packets);
3737 data[1] = le64_to_cpu(tally.rx_packets);
3738 data[2] = le64_to_cpu(tally.tx_errors);
3739 data[3] = le32_to_cpu(tally.rx_errors);
3740 data[4] = le16_to_cpu(tally.rx_missed);
3741 data[5] = le16_to_cpu(tally.align_errors);
3742 data[6] = le32_to_cpu(tally.tx_one_collision);
3743 data[7] = le32_to_cpu(tally.tx_multi_collision);
3744 data[8] = le64_to_cpu(tally.rx_unicast);
3745 data[9] = le64_to_cpu(tally.rx_broadcast);
3746 data[10] = le32_to_cpu(tally.rx_multicast);
3747 data[11] = le16_to_cpu(tally.tx_aborted);
hayeswangf37119c2014-10-28 14:05:51 +08003748 data[12] = le16_to_cpu(tally.tx_underrun);
hayeswang4f1d4d52014-03-11 16:24:19 +08003749}
3750
3751static void rtl8152_get_strings(struct net_device *dev, u32 stringset, u8 *data)
3752{
3753 switch (stringset) {
3754 case ETH_SS_STATS:
3755 memcpy(data, *rtl8152_gstrings, sizeof(rtl8152_gstrings));
3756 break;
3757 }
3758}
3759
hayeswangdf35d282014-09-25 20:54:02 +08003760static int r8152_get_eee(struct r8152 *tp, struct ethtool_eee *eee)
3761{
3762 u32 ocp_data, lp, adv, supported = 0;
3763 u16 val;
3764
3765 val = r8152_mmd_read(tp, MDIO_MMD_PCS, MDIO_PCS_EEE_ABLE);
3766 supported = mmd_eee_cap_to_ethtool_sup_t(val);
3767
3768 val = r8152_mmd_read(tp, MDIO_MMD_AN, MDIO_AN_EEE_ADV);
3769 adv = mmd_eee_adv_to_ethtool_adv_t(val);
3770
3771 val = r8152_mmd_read(tp, MDIO_MMD_AN, MDIO_AN_EEE_LPABLE);
3772 lp = mmd_eee_adv_to_ethtool_adv_t(val);
3773
3774 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_EEE_CR);
3775 ocp_data &= EEE_RX_EN | EEE_TX_EN;
3776
3777 eee->eee_enabled = !!ocp_data;
3778 eee->eee_active = !!(supported & adv & lp);
3779 eee->supported = supported;
3780 eee->advertised = adv;
3781 eee->lp_advertised = lp;
3782
3783 return 0;
3784}
3785
3786static int r8152_set_eee(struct r8152 *tp, struct ethtool_eee *eee)
3787{
3788 u16 val = ethtool_adv_to_mmd_eee_adv_t(eee->advertised);
3789
3790 r8152_eee_en(tp, eee->eee_enabled);
3791
3792 if (!eee->eee_enabled)
3793 val = 0;
3794
3795 r8152_mmd_write(tp, MDIO_MMD_AN, MDIO_AN_EEE_ADV, val);
3796
3797 return 0;
3798}
3799
3800static int r8153_get_eee(struct r8152 *tp, struct ethtool_eee *eee)
3801{
3802 u32 ocp_data, lp, adv, supported = 0;
3803 u16 val;
3804
3805 val = ocp_reg_read(tp, OCP_EEE_ABLE);
3806 supported = mmd_eee_cap_to_ethtool_sup_t(val);
3807
3808 val = ocp_reg_read(tp, OCP_EEE_ADV);
3809 adv = mmd_eee_adv_to_ethtool_adv_t(val);
3810
3811 val = ocp_reg_read(tp, OCP_EEE_LPABLE);
3812 lp = mmd_eee_adv_to_ethtool_adv_t(val);
3813
3814 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_EEE_CR);
3815 ocp_data &= EEE_RX_EN | EEE_TX_EN;
3816
3817 eee->eee_enabled = !!ocp_data;
3818 eee->eee_active = !!(supported & adv & lp);
3819 eee->supported = supported;
3820 eee->advertised = adv;
3821 eee->lp_advertised = lp;
3822
3823 return 0;
3824}
3825
3826static int r8153_set_eee(struct r8152 *tp, struct ethtool_eee *eee)
3827{
3828 u16 val = ethtool_adv_to_mmd_eee_adv_t(eee->advertised);
3829
3830 r8153_eee_en(tp, eee->eee_enabled);
3831
3832 if (!eee->eee_enabled)
3833 val = 0;
3834
3835 ocp_reg_write(tp, OCP_EEE_ADV, val);
3836
3837 return 0;
3838}
3839
3840static int
3841rtl_ethtool_get_eee(struct net_device *net, struct ethtool_eee *edata)
3842{
3843 struct r8152 *tp = netdev_priv(net);
3844 int ret;
3845
3846 ret = usb_autopm_get_interface(tp->intf);
3847 if (ret < 0)
3848 goto out;
3849
hayeswangb5403272014-10-09 18:00:26 +08003850 mutex_lock(&tp->control);
3851
hayeswangdf35d282014-09-25 20:54:02 +08003852 ret = tp->rtl_ops.eee_get(tp, edata);
3853
hayeswangb5403272014-10-09 18:00:26 +08003854 mutex_unlock(&tp->control);
3855
hayeswangdf35d282014-09-25 20:54:02 +08003856 usb_autopm_put_interface(tp->intf);
3857
3858out:
3859 return ret;
3860}
3861
3862static int
3863rtl_ethtool_set_eee(struct net_device *net, struct ethtool_eee *edata)
3864{
3865 struct r8152 *tp = netdev_priv(net);
3866 int ret;
3867
3868 ret = usb_autopm_get_interface(tp->intf);
3869 if (ret < 0)
3870 goto out;
3871
hayeswangb5403272014-10-09 18:00:26 +08003872 mutex_lock(&tp->control);
3873
hayeswangdf35d282014-09-25 20:54:02 +08003874 ret = tp->rtl_ops.eee_set(tp, edata);
hayeswang9d31a7b2014-10-06 10:36:04 +08003875 if (!ret)
3876 ret = mii_nway_restart(&tp->mii);
hayeswangdf35d282014-09-25 20:54:02 +08003877
hayeswangb5403272014-10-09 18:00:26 +08003878 mutex_unlock(&tp->control);
3879
hayeswangdf35d282014-09-25 20:54:02 +08003880 usb_autopm_put_interface(tp->intf);
3881
3882out:
3883 return ret;
3884}
3885
hayeswang8884f502014-10-28 14:05:52 +08003886static int rtl8152_nway_reset(struct net_device *dev)
3887{
3888 struct r8152 *tp = netdev_priv(dev);
3889 int ret;
3890
3891 ret = usb_autopm_get_interface(tp->intf);
3892 if (ret < 0)
3893 goto out;
3894
3895 mutex_lock(&tp->control);
3896
3897 ret = mii_nway_restart(&tp->mii);
3898
3899 mutex_unlock(&tp->control);
3900
3901 usb_autopm_put_interface(tp->intf);
3902
3903out:
3904 return ret;
3905}
3906
hayeswangefb3dd82015-02-12 14:33:48 +08003907static int rtl8152_get_coalesce(struct net_device *netdev,
3908 struct ethtool_coalesce *coalesce)
3909{
3910 struct r8152 *tp = netdev_priv(netdev);
3911
3912 switch (tp->version) {
3913 case RTL_VER_01:
3914 case RTL_VER_02:
3915 return -EOPNOTSUPP;
3916 default:
3917 break;
3918 }
3919
3920 coalesce->rx_coalesce_usecs = tp->coalesce;
3921
3922 return 0;
3923}
3924
3925static int rtl8152_set_coalesce(struct net_device *netdev,
3926 struct ethtool_coalesce *coalesce)
3927{
3928 struct r8152 *tp = netdev_priv(netdev);
3929 int ret;
3930
3931 switch (tp->version) {
3932 case RTL_VER_01:
3933 case RTL_VER_02:
3934 return -EOPNOTSUPP;
3935 default:
3936 break;
3937 }
3938
3939 if (coalesce->rx_coalesce_usecs > COALESCE_SLOW)
3940 return -EINVAL;
3941
3942 ret = usb_autopm_get_interface(tp->intf);
3943 if (ret < 0)
3944 return ret;
3945
3946 mutex_lock(&tp->control);
3947
3948 if (tp->coalesce != coalesce->rx_coalesce_usecs) {
3949 tp->coalesce = coalesce->rx_coalesce_usecs;
3950
3951 if (netif_running(tp->netdev) && netif_carrier_ok(netdev))
3952 r8153_set_rx_early_timeout(tp);
3953 }
3954
3955 mutex_unlock(&tp->control);
3956
3957 usb_autopm_put_interface(tp->intf);
3958
3959 return ret;
3960}
3961
hayeswangac718b62013-05-02 16:01:25 +00003962static struct ethtool_ops ops = {
3963 .get_drvinfo = rtl8152_get_drvinfo,
3964 .get_settings = rtl8152_get_settings,
3965 .set_settings = rtl8152_set_settings,
3966 .get_link = ethtool_op_get_link,
hayeswang8884f502014-10-28 14:05:52 +08003967 .nway_reset = rtl8152_nway_reset,
hayeswanga5ec27c2014-02-18 21:49:11 +08003968 .get_msglevel = rtl8152_get_msglevel,
3969 .set_msglevel = rtl8152_set_msglevel,
hayeswang21ff2e82014-02-18 21:49:06 +08003970 .get_wol = rtl8152_get_wol,
3971 .set_wol = rtl8152_set_wol,
hayeswang4f1d4d52014-03-11 16:24:19 +08003972 .get_strings = rtl8152_get_strings,
3973 .get_sset_count = rtl8152_get_sset_count,
3974 .get_ethtool_stats = rtl8152_get_ethtool_stats,
hayeswangefb3dd82015-02-12 14:33:48 +08003975 .get_coalesce = rtl8152_get_coalesce,
3976 .set_coalesce = rtl8152_set_coalesce,
hayeswangdf35d282014-09-25 20:54:02 +08003977 .get_eee = rtl_ethtool_get_eee,
3978 .set_eee = rtl_ethtool_set_eee,
hayeswangac718b62013-05-02 16:01:25 +00003979};
3980
3981static int rtl8152_ioctl(struct net_device *netdev, struct ifreq *rq, int cmd)
3982{
3983 struct r8152 *tp = netdev_priv(netdev);
3984 struct mii_ioctl_data *data = if_mii(rq);
hayeswang9a4be1b2014-02-18 21:49:07 +08003985 int res;
3986
hayeswang68714382014-04-11 17:54:31 +08003987 if (test_bit(RTL8152_UNPLUG, &tp->flags))
3988 return -ENODEV;
3989
hayeswang9a4be1b2014-02-18 21:49:07 +08003990 res = usb_autopm_get_interface(tp->intf);
3991 if (res < 0)
3992 goto out;
hayeswangac718b62013-05-02 16:01:25 +00003993
3994 switch (cmd) {
3995 case SIOCGMIIPHY:
3996 data->phy_id = R8152_PHY_ID; /* Internal PHY */
3997 break;
3998
3999 case SIOCGMIIREG:
hayeswangb5403272014-10-09 18:00:26 +08004000 mutex_lock(&tp->control);
hayeswangac718b62013-05-02 16:01:25 +00004001 data->val_out = r8152_mdio_read(tp, data->reg_num);
hayeswangb5403272014-10-09 18:00:26 +08004002 mutex_unlock(&tp->control);
hayeswangac718b62013-05-02 16:01:25 +00004003 break;
4004
4005 case SIOCSMIIREG:
4006 if (!capable(CAP_NET_ADMIN)) {
4007 res = -EPERM;
4008 break;
4009 }
hayeswangb5403272014-10-09 18:00:26 +08004010 mutex_lock(&tp->control);
hayeswangac718b62013-05-02 16:01:25 +00004011 r8152_mdio_write(tp, data->reg_num, data->val_in);
hayeswangb5403272014-10-09 18:00:26 +08004012 mutex_unlock(&tp->control);
hayeswangac718b62013-05-02 16:01:25 +00004013 break;
4014
4015 default:
4016 res = -EOPNOTSUPP;
4017 }
4018
hayeswang9a4be1b2014-02-18 21:49:07 +08004019 usb_autopm_put_interface(tp->intf);
4020
4021out:
hayeswangac718b62013-05-02 16:01:25 +00004022 return res;
4023}
4024
hayeswang69b4b7a2014-07-10 10:58:54 +08004025static int rtl8152_change_mtu(struct net_device *dev, int new_mtu)
4026{
4027 struct r8152 *tp = netdev_priv(dev);
hayeswang396e2e22015-02-12 14:33:47 +08004028 int ret;
hayeswang69b4b7a2014-07-10 10:58:54 +08004029
4030 switch (tp->version) {
4031 case RTL_VER_01:
4032 case RTL_VER_02:
4033 return eth_change_mtu(dev, new_mtu);
4034 default:
4035 break;
4036 }
4037
4038 if (new_mtu < 68 || new_mtu > RTL8153_MAX_MTU)
4039 return -EINVAL;
4040
hayeswang396e2e22015-02-12 14:33:47 +08004041 ret = usb_autopm_get_interface(tp->intf);
4042 if (ret < 0)
4043 return ret;
4044
4045 mutex_lock(&tp->control);
4046
hayeswang69b4b7a2014-07-10 10:58:54 +08004047 dev->mtu = new_mtu;
4048
hayeswang396e2e22015-02-12 14:33:47 +08004049 if (netif_running(dev) && netif_carrier_ok(dev))
4050 r8153_set_rx_early_size(tp);
4051
4052 mutex_unlock(&tp->control);
4053
4054 usb_autopm_put_interface(tp->intf);
4055
4056 return ret;
hayeswang69b4b7a2014-07-10 10:58:54 +08004057}
4058
hayeswangac718b62013-05-02 16:01:25 +00004059static const struct net_device_ops rtl8152_netdev_ops = {
4060 .ndo_open = rtl8152_open,
4061 .ndo_stop = rtl8152_close,
4062 .ndo_do_ioctl = rtl8152_ioctl,
4063 .ndo_start_xmit = rtl8152_start_xmit,
4064 .ndo_tx_timeout = rtl8152_tx_timeout,
hayeswangc5554292014-09-12 10:43:11 +08004065 .ndo_set_features = rtl8152_set_features,
hayeswangac718b62013-05-02 16:01:25 +00004066 .ndo_set_rx_mode = rtl8152_set_rx_mode,
4067 .ndo_set_mac_address = rtl8152_set_mac_address,
hayeswang69b4b7a2014-07-10 10:58:54 +08004068 .ndo_change_mtu = rtl8152_change_mtu,
hayeswangac718b62013-05-02 16:01:25 +00004069 .ndo_validate_addr = eth_validate_addr,
hayeswanga5e31252015-01-06 17:41:58 +08004070 .ndo_features_check = rtl8152_features_check,
hayeswangac718b62013-05-02 16:01:25 +00004071};
4072
4073static void r8152b_get_version(struct r8152 *tp)
4074{
4075 u32 ocp_data;
4076 u16 version;
4077
4078 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_TCR1);
4079 version = (u16)(ocp_data & VERSION_MASK);
4080
4081 switch (version) {
4082 case 0x4c00:
4083 tp->version = RTL_VER_01;
4084 break;
4085 case 0x4c10:
4086 tp->version = RTL_VER_02;
4087 break;
hayeswang43779f82014-01-02 11:25:10 +08004088 case 0x5c00:
4089 tp->version = RTL_VER_03;
4090 tp->mii.supports_gmii = 1;
4091 break;
4092 case 0x5c10:
4093 tp->version = RTL_VER_04;
4094 tp->mii.supports_gmii = 1;
4095 break;
4096 case 0x5c20:
4097 tp->version = RTL_VER_05;
4098 tp->mii.supports_gmii = 1;
4099 break;
hayeswangfb02eb42015-07-22 15:27:41 +08004100 case 0x5c30:
4101 tp->version = RTL_VER_06;
4102 tp->mii.supports_gmii = 1;
4103 break;
hayeswangac718b62013-05-02 16:01:25 +00004104 default:
4105 netif_info(tp, probe, tp->netdev,
4106 "Unknown version 0x%04x\n", version);
4107 break;
4108 }
4109}
4110
hayeswange3fe0b12014-01-02 11:22:39 +08004111static void rtl8152_unload(struct r8152 *tp)
4112{
hayeswang68714382014-04-11 17:54:31 +08004113 if (test_bit(RTL8152_UNPLUG, &tp->flags))
4114 return;
4115
hayeswang00a5e362014-02-18 21:48:59 +08004116 if (tp->version != RTL_VER_01)
4117 r8152_power_cut_en(tp, true);
hayeswange3fe0b12014-01-02 11:22:39 +08004118}
4119
hayeswang43779f82014-01-02 11:25:10 +08004120static void rtl8153_unload(struct r8152 *tp)
4121{
hayeswang68714382014-04-11 17:54:31 +08004122 if (test_bit(RTL8152_UNPLUG, &tp->flags))
4123 return;
4124
hayeswang49be1722014-10-01 13:25:11 +08004125 r8153_power_cut_en(tp, false);
hayeswang43779f82014-01-02 11:25:10 +08004126}
4127
hayeswang55b65472014-11-06 12:47:39 +08004128static int rtl_ops_init(struct r8152 *tp)
hayeswangc81229c2014-01-02 11:22:42 +08004129{
4130 struct rtl_ops *ops = &tp->rtl_ops;
hayeswang55b65472014-11-06 12:47:39 +08004131 int ret = 0;
hayeswangc81229c2014-01-02 11:22:42 +08004132
hayeswang55b65472014-11-06 12:47:39 +08004133 switch (tp->version) {
4134 case RTL_VER_01:
4135 case RTL_VER_02:
4136 ops->init = r8152b_init;
4137 ops->enable = rtl8152_enable;
4138 ops->disable = rtl8152_disable;
4139 ops->up = rtl8152_up;
4140 ops->down = rtl8152_down;
4141 ops->unload = rtl8152_unload;
4142 ops->eee_get = r8152_get_eee;
4143 ops->eee_set = r8152_set_eee;
hayeswang2dd49e02015-09-07 11:57:44 +08004144 ops->in_nway = rtl8152_in_nway;
hayeswanga028a9e2016-06-13 17:49:36 +08004145 ops->hw_phy_cfg = r8152b_hw_phy_cfg;
hayeswang43779f82014-01-02 11:25:10 +08004146 break;
4147
hayeswang55b65472014-11-06 12:47:39 +08004148 case RTL_VER_03:
4149 case RTL_VER_04:
4150 case RTL_VER_05:
hayeswangfb02eb42015-07-22 15:27:41 +08004151 case RTL_VER_06:
hayeswang55b65472014-11-06 12:47:39 +08004152 ops->init = r8153_init;
4153 ops->enable = rtl8153_enable;
4154 ops->disable = rtl8153_disable;
4155 ops->up = rtl8153_up;
4156 ops->down = rtl8153_down;
4157 ops->unload = rtl8153_unload;
4158 ops->eee_get = r8153_get_eee;
4159 ops->eee_set = r8153_set_eee;
hayeswang2dd49e02015-09-07 11:57:44 +08004160 ops->in_nway = rtl8153_in_nway;
hayeswanga028a9e2016-06-13 17:49:36 +08004161 ops->hw_phy_cfg = r8153_hw_phy_cfg;
hayeswangc81229c2014-01-02 11:22:42 +08004162 break;
4163
4164 default:
hayeswang55b65472014-11-06 12:47:39 +08004165 ret = -ENODEV;
4166 netif_err(tp, probe, tp->netdev, "Unknown Device\n");
hayeswangc81229c2014-01-02 11:22:42 +08004167 break;
4168 }
4169
4170 return ret;
4171}
4172
hayeswangac718b62013-05-02 16:01:25 +00004173static int rtl8152_probe(struct usb_interface *intf,
4174 const struct usb_device_id *id)
4175{
4176 struct usb_device *udev = interface_to_usbdev(intf);
4177 struct r8152 *tp;
4178 struct net_device *netdev;
hayeswangebc2ec42013-08-14 20:54:38 +08004179 int ret;
hayeswangac718b62013-05-02 16:01:25 +00004180
hayeswang10c32712014-03-04 20:47:48 +08004181 if (udev->actconfig->desc.bConfigurationValue != 1) {
4182 usb_driver_set_configuration(udev, 1);
4183 return -ENODEV;
4184 }
4185
4186 usb_reset_device(udev);
hayeswangac718b62013-05-02 16:01:25 +00004187 netdev = alloc_etherdev(sizeof(struct r8152));
4188 if (!netdev) {
Hayes Wang4a8deae2014-01-07 11:18:22 +08004189 dev_err(&intf->dev, "Out of memory\n");
hayeswangac718b62013-05-02 16:01:25 +00004190 return -ENOMEM;
4191 }
4192
hayeswangebc2ec42013-08-14 20:54:38 +08004193 SET_NETDEV_DEV(netdev, &intf->dev);
hayeswangac718b62013-05-02 16:01:25 +00004194 tp = netdev_priv(netdev);
4195 tp->msg_enable = 0x7FFF;
4196
hayeswange3ad4122014-01-06 17:08:42 +08004197 tp->udev = udev;
4198 tp->netdev = netdev;
4199 tp->intf = intf;
4200
hayeswang82cf94c2014-11-06 12:47:38 +08004201 r8152b_get_version(tp);
hayeswang55b65472014-11-06 12:47:39 +08004202 ret = rtl_ops_init(tp);
hayeswang31ca1de2014-01-06 17:08:43 +08004203 if (ret)
4204 goto out;
hayeswangc81229c2014-01-02 11:22:42 +08004205
hayeswangb5403272014-10-09 18:00:26 +08004206 mutex_init(&tp->control);
hayeswangac718b62013-05-02 16:01:25 +00004207 INIT_DELAYED_WORK(&tp->schedule, rtl_work_func_t);
hayeswanga028a9e2016-06-13 17:49:36 +08004208 INIT_DELAYED_WORK(&tp->hw_phy_work, rtl_hw_phy_work_func_t);
hayeswangac718b62013-05-02 16:01:25 +00004209
hayeswangac718b62013-05-02 16:01:25 +00004210 netdev->netdev_ops = &rtl8152_netdev_ops;
4211 netdev->watchdog_timeo = RTL8152_TX_TIMEOUT;
hayeswang5bd23882013-08-14 20:54:39 +08004212
hayeswang60c89072014-03-07 11:04:39 +08004213 netdev->features |= NETIF_F_RXCSUM | NETIF_F_IP_CSUM | NETIF_F_SG |
hayeswang6128d1b2014-03-07 11:04:40 +08004214 NETIF_F_TSO | NETIF_F_FRAGLIST | NETIF_F_IPV6_CSUM |
hayeswangc5554292014-09-12 10:43:11 +08004215 NETIF_F_TSO6 | NETIF_F_HW_VLAN_CTAG_RX |
4216 NETIF_F_HW_VLAN_CTAG_TX;
hayeswang60c89072014-03-07 11:04:39 +08004217 netdev->hw_features = NETIF_F_RXCSUM | NETIF_F_IP_CSUM | NETIF_F_SG |
hayeswang6128d1b2014-03-07 11:04:40 +08004218 NETIF_F_TSO | NETIF_F_FRAGLIST |
hayeswangc5554292014-09-12 10:43:11 +08004219 NETIF_F_IPV6_CSUM | NETIF_F_TSO6 |
hayeswangccc39fa2015-02-06 11:30:49 +08004220 NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HW_VLAN_CTAG_TX;
hayeswangc5554292014-09-12 10:43:11 +08004221 netdev->vlan_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO |
4222 NETIF_F_HIGHDMA | NETIF_F_FRAGLIST |
4223 NETIF_F_IPV6_CSUM | NETIF_F_TSO6;
hayeswangdb8515e2014-03-06 15:07:16 +08004224
Wilfried Klaebe7ad24ea2014-05-11 00:12:32 +00004225 netdev->ethtool_ops = &ops;
hayeswang60c89072014-03-07 11:04:39 +08004226 netif_set_gso_max_size(netdev, RTL_LIMITED_TSO_SIZE);
hayeswangac718b62013-05-02 16:01:25 +00004227
4228 tp->mii.dev = netdev;
4229 tp->mii.mdio_read = read_mii_word;
4230 tp->mii.mdio_write = write_mii_word;
4231 tp->mii.phy_id_mask = 0x3f;
4232 tp->mii.reg_num_mask = 0x1f;
4233 tp->mii.phy_id = R8152_PHY_ID;
hayeswangac718b62013-05-02 16:01:25 +00004234
hayeswang464ec102015-02-12 14:33:46 +08004235 switch (udev->speed) {
4236 case USB_SPEED_SUPER:
Oliver Neukum2b84af94a2016-05-02 13:06:14 +02004237 case USB_SPEED_SUPER_PLUS:
hayeswang464ec102015-02-12 14:33:46 +08004238 tp->coalesce = COALESCE_SUPER;
4239 break;
4240 case USB_SPEED_HIGH:
4241 tp->coalesce = COALESCE_HIGH;
4242 break;
4243 default:
4244 tp->coalesce = COALESCE_SLOW;
4245 break;
4246 }
4247
hayeswangaa7e26b2016-06-13 17:49:38 +08004248 tp->autoneg = AUTONEG_ENABLE;
4249 tp->speed = tp->mii.supports_gmii ? SPEED_1000 : SPEED_100;
4250 tp->duplex = DUPLEX_FULL;
4251
hayeswang9a4be1b2014-02-18 21:49:07 +08004252 intf->needs_remote_wakeup = 1;
4253
hayeswangc81229c2014-01-02 11:22:42 +08004254 tp->rtl_ops.init(tp);
hayeswanga028a9e2016-06-13 17:49:36 +08004255 queue_delayed_work(system_long_wq, &tp->hw_phy_work, 0);
hayeswangac718b62013-05-02 16:01:25 +00004256 set_ethernet_addr(tp);
4257
hayeswangac718b62013-05-02 16:01:25 +00004258 usb_set_intfdata(intf, tp);
hayeswangd823ab62015-01-12 12:06:23 +08004259 netif_napi_add(netdev, &tp->napi, r8152_poll, RTL8152_NAPI_WEIGHT);
hayeswangac718b62013-05-02 16:01:25 +00004260
hayeswangebc2ec42013-08-14 20:54:38 +08004261 ret = register_netdev(netdev);
4262 if (ret != 0) {
Hayes Wang4a8deae2014-01-07 11:18:22 +08004263 netif_err(tp, probe, netdev, "couldn't register the device\n");
hayeswangebc2ec42013-08-14 20:54:38 +08004264 goto out1;
hayeswangac718b62013-05-02 16:01:25 +00004265 }
4266
hayeswang7daed8d2015-07-24 13:54:24 +08004267 if (!rtl_can_wakeup(tp))
4268 __rtl_set_wol(tp, 0);
4269
hayeswang21ff2e82014-02-18 21:49:06 +08004270 tp->saved_wolopts = __rtl_get_wol(tp);
4271 if (tp->saved_wolopts)
4272 device_set_wakeup_enable(&udev->dev, true);
4273 else
4274 device_set_wakeup_enable(&udev->dev, false);
4275
Hayes Wang4a8deae2014-01-07 11:18:22 +08004276 netif_info(tp, probe, netdev, "%s\n", DRIVER_VERSION);
hayeswangac718b62013-05-02 16:01:25 +00004277
4278 return 0;
4279
hayeswangac718b62013-05-02 16:01:25 +00004280out1:
hayeswangd823ab62015-01-12 12:06:23 +08004281 netif_napi_del(&tp->napi);
hayeswangebc2ec42013-08-14 20:54:38 +08004282 usb_set_intfdata(intf, NULL);
hayeswangac718b62013-05-02 16:01:25 +00004283out:
4284 free_netdev(netdev);
hayeswangebc2ec42013-08-14 20:54:38 +08004285 return ret;
hayeswangac718b62013-05-02 16:01:25 +00004286}
4287
hayeswangac718b62013-05-02 16:01:25 +00004288static void rtl8152_disconnect(struct usb_interface *intf)
4289{
4290 struct r8152 *tp = usb_get_intfdata(intf);
4291
4292 usb_set_intfdata(intf, NULL);
4293 if (tp) {
hayeswangf561de32014-09-30 16:48:01 +08004294 struct usb_device *udev = tp->udev;
4295
4296 if (udev->state == USB_STATE_NOTATTACHED)
4297 set_bit(RTL8152_UNPLUG, &tp->flags);
4298
hayeswangd823ab62015-01-12 12:06:23 +08004299 netif_napi_del(&tp->napi);
hayeswangac718b62013-05-02 16:01:25 +00004300 unregister_netdev(tp->netdev);
hayeswanga028a9e2016-06-13 17:49:36 +08004301 cancel_delayed_work_sync(&tp->hw_phy_work);
hayeswangc81229c2014-01-02 11:22:42 +08004302 tp->rtl_ops.unload(tp);
hayeswangac718b62013-05-02 16:01:25 +00004303 free_netdev(tp->netdev);
4304 }
4305}
4306
hayeswangd9a28c52014-12-04 10:43:11 +08004307#define REALTEK_USB_DEVICE(vend, prod) \
4308 .match_flags = USB_DEVICE_ID_MATCH_DEVICE | \
4309 USB_DEVICE_ID_MATCH_INT_CLASS, \
4310 .idVendor = (vend), \
4311 .idProduct = (prod), \
4312 .bInterfaceClass = USB_CLASS_VENDOR_SPEC \
4313}, \
4314{ \
4315 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO | \
4316 USB_DEVICE_ID_MATCH_DEVICE, \
4317 .idVendor = (vend), \
4318 .idProduct = (prod), \
4319 .bInterfaceClass = USB_CLASS_COMM, \
4320 .bInterfaceSubClass = USB_CDC_SUBCLASS_ETHERNET, \
4321 .bInterfaceProtocol = USB_CDC_PROTO_NONE
4322
hayeswangac718b62013-05-02 16:01:25 +00004323/* table of devices that work with this driver */
4324static struct usb_device_id rtl8152_table[] = {
hayeswangd9a28c52014-12-04 10:43:11 +08004325 {REALTEK_USB_DEVICE(VENDOR_ID_REALTEK, 0x8152)},
4326 {REALTEK_USB_DEVICE(VENDOR_ID_REALTEK, 0x8153)},
4327 {REALTEK_USB_DEVICE(VENDOR_ID_SAMSUNG, 0xa101)},
Christian Hesse347eec32015-03-31 14:10:07 +02004328 {REALTEK_USB_DEVICE(VENDOR_ID_LENOVO, 0x7205)},
Vasily Titskiy1006da12015-05-06 10:31:21 -04004329 {REALTEK_USB_DEVICE(VENDOR_ID_LENOVO, 0x304f)},
Zheng Liud065c3c2015-07-07 13:54:12 -07004330 {REALTEK_USB_DEVICE(VENDOR_ID_NVIDIA, 0x09ff)},
hayeswangac718b62013-05-02 16:01:25 +00004331 {}
4332};
4333
4334MODULE_DEVICE_TABLE(usb, rtl8152_table);
4335
4336static struct usb_driver rtl8152_driver = {
4337 .name = MODULENAME,
hayeswangebc2ec42013-08-14 20:54:38 +08004338 .id_table = rtl8152_table,
hayeswangac718b62013-05-02 16:01:25 +00004339 .probe = rtl8152_probe,
4340 .disconnect = rtl8152_disconnect,
hayeswangac718b62013-05-02 16:01:25 +00004341 .suspend = rtl8152_suspend,
hayeswangebc2ec42013-08-14 20:54:38 +08004342 .resume = rtl8152_resume,
hayeswang7ec25412016-01-04 14:38:46 +08004343 .reset_resume = rtl8152_reset_resume,
hayeswange5011392015-07-29 20:39:08 +08004344 .pre_reset = rtl8152_pre_reset,
4345 .post_reset = rtl8152_post_reset,
hayeswang9a4be1b2014-02-18 21:49:07 +08004346 .supports_autosuspend = 1,
hayeswanga6347822014-02-18 21:49:10 +08004347 .disable_hub_initiated_lpm = 1,
hayeswangac718b62013-05-02 16:01:25 +00004348};
4349
Sachin Kamatb4236daa2013-05-16 17:48:08 +00004350module_usb_driver(rtl8152_driver);
hayeswangac718b62013-05-02 16:01:25 +00004351
4352MODULE_AUTHOR(DRIVER_AUTHOR);
4353MODULE_DESCRIPTION(DRIVER_DESC);
4354MODULE_LICENSE("GPL");