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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>
hayeswangebc2ec482013-08-14 20:54:38 +080021#include <linux/list.h>
hayeswang5bd23882013-08-14 20:54:39 +080022#include <linux/ip.h>
23#include <linux/ipv6.h>
hayeswang6128d1bb2014-03-07 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>
hayeswangac718b62013-05-02 16:01:25 +000028
hayeswangd0942472015-09-07 11:57:43 +080029/* Information for net-next */
30#define NETNEXT_VERSION "08"
31
32/* Information for net */
hayeswang2dd49e02015-09-07 11:57:44 +080033#define NET_VERSION "2"
hayeswangd0942472015-09-07 11:57:43 +080034
35#define DRIVER_VERSION "v1." NETNEXT_VERSION "." NET_VERSION
hayeswangac718b62013-05-02 16:01:25 +000036#define DRIVER_AUTHOR "Realtek linux nic maintainers <nic_swsd@realtek.com>"
hayeswang44d942a2014-01-15 10:42:14 +080037#define DRIVER_DESC "Realtek RTL8152/RTL8153 Based USB Ethernet Adapters"
hayeswangac718b62013-05-02 16:01:25 +000038#define MODULENAME "r8152"
39
40#define R8152_PHY_ID 32
41
42#define PLA_IDR 0xc000
43#define PLA_RCR 0xc010
44#define PLA_RMS 0xc016
45#define PLA_RXFIFO_CTRL0 0xc0a0
46#define PLA_RXFIFO_CTRL1 0xc0a4
47#define PLA_RXFIFO_CTRL2 0xc0a8
hayeswang65bab842015-02-12 16:20:46 +080048#define PLA_DMY_REG0 0xc0b0
hayeswangac718b62013-05-02 16:01:25 +000049#define PLA_FMC 0xc0b4
50#define PLA_CFG_WOL 0xc0b6
hayeswang43779f82014-01-02 11:25:10 +080051#define PLA_TEREDO_CFG 0xc0bc
hayeswangac718b62013-05-02 16:01:25 +000052#define PLA_MAR 0xcd00
hayeswang43779f82014-01-02 11:25:10 +080053#define PLA_BACKUP 0xd000
hayeswangac718b62013-05-02 16:01:25 +000054#define PAL_BDC_CR 0xd1a0
hayeswang43779f82014-01-02 11:25:10 +080055#define PLA_TEREDO_TIMER 0xd2cc
56#define PLA_REALWOW_TIMER 0xd2e8
hayeswangac718b62013-05-02 16:01:25 +000057#define PLA_LEDSEL 0xdd90
58#define PLA_LED_FEATURE 0xdd92
59#define PLA_PHYAR 0xde00
hayeswang43779f82014-01-02 11:25:10 +080060#define PLA_BOOT_CTRL 0xe004
hayeswangac718b62013-05-02 16:01:25 +000061#define PLA_GPHY_INTR_IMR 0xe022
62#define PLA_EEE_CR 0xe040
63#define PLA_EEEP_CR 0xe080
64#define PLA_MAC_PWR_CTRL 0xe0c0
hayeswang43779f82014-01-02 11:25:10 +080065#define PLA_MAC_PWR_CTRL2 0xe0ca
66#define PLA_MAC_PWR_CTRL3 0xe0cc
67#define PLA_MAC_PWR_CTRL4 0xe0ce
68#define PLA_WDT6_CTRL 0xe428
hayeswangac718b62013-05-02 16:01:25 +000069#define PLA_TCR0 0xe610
70#define PLA_TCR1 0xe612
hayeswang69b4b7a2014-07-10 10:58:54 +080071#define PLA_MTPS 0xe615
hayeswangac718b62013-05-02 16:01:25 +000072#define PLA_TXFIFO_CTRL 0xe618
hayeswang4f1d4d52014-03-11 16:24:19 +080073#define PLA_RSTTALLY 0xe800
hayeswangac718b62013-05-02 16:01:25 +000074#define PLA_CR 0xe813
75#define PLA_CRWECR 0xe81c
hayeswang21ff2e82014-02-18 21:49:06 +080076#define PLA_CONFIG12 0xe81e /* CONFIG1, CONFIG2 */
77#define PLA_CONFIG34 0xe820 /* CONFIG3, CONFIG4 */
hayeswangac718b62013-05-02 16:01:25 +000078#define PLA_CONFIG5 0xe822
79#define PLA_PHY_PWR 0xe84c
80#define PLA_OOB_CTRL 0xe84f
81#define PLA_CPCR 0xe854
82#define PLA_MISC_0 0xe858
83#define PLA_MISC_1 0xe85a
84#define PLA_OCP_GPHY_BASE 0xe86c
hayeswang4f1d4d52014-03-11 16:24:19 +080085#define PLA_TALLYCNT 0xe890
hayeswangac718b62013-05-02 16:01:25 +000086#define PLA_SFF_STS_7 0xe8de
87#define PLA_PHYSTATUS 0xe908
88#define PLA_BP_BA 0xfc26
89#define PLA_BP_0 0xfc28
90#define PLA_BP_1 0xfc2a
91#define PLA_BP_2 0xfc2c
92#define PLA_BP_3 0xfc2e
93#define PLA_BP_4 0xfc30
94#define PLA_BP_5 0xfc32
95#define PLA_BP_6 0xfc34
96#define PLA_BP_7 0xfc36
hayeswang43779f82014-01-02 11:25:10 +080097#define PLA_BP_EN 0xfc38
hayeswangac718b62013-05-02 16:01:25 +000098
hayeswang65bab842015-02-12 16:20:46 +080099#define USB_USB2PHY 0xb41e
100#define USB_SSPHYLINK2 0xb428
hayeswang43779f82014-01-02 11:25:10 +0800101#define USB_U2P3_CTRL 0xb460
hayeswang65bab842015-02-12 16:20:46 +0800102#define USB_CSR_DUMMY1 0xb464
103#define USB_CSR_DUMMY2 0xb466
hayeswangac718b62013-05-02 16:01:25 +0000104#define USB_DEV_STAT 0xb808
hayeswang65bab842015-02-12 16:20:46 +0800105#define USB_CONNECT_TIMER 0xcbf8
106#define USB_BURST_SIZE 0xcfc0
hayeswangac718b62013-05-02 16:01:25 +0000107#define USB_USB_CTRL 0xd406
108#define USB_PHY_CTRL 0xd408
109#define USB_TX_AGG 0xd40a
110#define USB_RX_BUF_TH 0xd40c
111#define USB_USB_TIMER 0xd428
hayeswang464ec102015-02-12 14:33:46 +0800112#define USB_RX_EARLY_TIMEOUT 0xd42c
113#define USB_RX_EARLY_SIZE 0xd42e
hayeswangac718b62013-05-02 16:01:25 +0000114#define USB_PM_CTRL_STATUS 0xd432
115#define USB_TX_DMA 0xd434
hayeswang43779f82014-01-02 11:25:10 +0800116#define USB_TOLERANCE 0xd490
117#define USB_LPM_CTRL 0xd41a
hayeswangac718b62013-05-02 16:01:25 +0000118#define USB_UPS_CTRL 0xd800
hayeswang43779f82014-01-02 11:25:10 +0800119#define USB_MISC_0 0xd81a
120#define USB_POWER_CUT 0xd80a
121#define USB_AFE_CTRL2 0xd824
122#define USB_WDT11_CTRL 0xe43c
hayeswangac718b62013-05-02 16:01:25 +0000123#define USB_BP_BA 0xfc26
124#define USB_BP_0 0xfc28
125#define USB_BP_1 0xfc2a
126#define USB_BP_2 0xfc2c
127#define USB_BP_3 0xfc2e
128#define USB_BP_4 0xfc30
129#define USB_BP_5 0xfc32
130#define USB_BP_6 0xfc34
131#define USB_BP_7 0xfc36
hayeswang43779f82014-01-02 11:25:10 +0800132#define USB_BP_EN 0xfc38
hayeswangac718b62013-05-02 16:01:25 +0000133
134/* OCP Registers */
135#define OCP_ALDPS_CONFIG 0x2010
136#define OCP_EEE_CONFIG1 0x2080
137#define OCP_EEE_CONFIG2 0x2092
138#define OCP_EEE_CONFIG3 0x2094
hayeswangac244d32014-01-02 11:22:40 +0800139#define OCP_BASE_MII 0xa400
hayeswangac718b62013-05-02 16:01:25 +0000140#define OCP_EEE_AR 0xa41a
141#define OCP_EEE_DATA 0xa41c
hayeswang43779f82014-01-02 11:25:10 +0800142#define OCP_PHY_STATUS 0xa420
143#define OCP_POWER_CFG 0xa430
144#define OCP_EEE_CFG 0xa432
145#define OCP_SRAM_ADDR 0xa436
146#define OCP_SRAM_DATA 0xa438
147#define OCP_DOWN_SPEED 0xa442
hayeswangdf35d282014-09-25 20:54:02 +0800148#define OCP_EEE_ABLE 0xa5c4
hayeswang4c4a6b12014-09-25 20:54:00 +0800149#define OCP_EEE_ADV 0xa5d0
hayeswangdf35d282014-09-25 20:54:02 +0800150#define OCP_EEE_LPABLE 0xa5d2
hayeswang2dd49e02015-09-07 11:57:44 +0800151#define OCP_PHY_STATE 0xa708 /* nway state for 8153 */
hayeswang43779f82014-01-02 11:25:10 +0800152#define OCP_ADC_CFG 0xbc06
153
154/* SRAM Register */
155#define SRAM_LPF_CFG 0x8012
156#define SRAM_10M_AMP1 0x8080
157#define SRAM_10M_AMP2 0x8082
158#define SRAM_IMPEDANCE 0x8084
hayeswangac718b62013-05-02 16:01:25 +0000159
160/* PLA_RCR */
161#define RCR_AAP 0x00000001
162#define RCR_APM 0x00000002
163#define RCR_AM 0x00000004
164#define RCR_AB 0x00000008
165#define RCR_ACPT_ALL (RCR_AAP | RCR_APM | RCR_AM | RCR_AB)
166
167/* PLA_RXFIFO_CTRL0 */
168#define RXFIFO_THR1_NORMAL 0x00080002
169#define RXFIFO_THR1_OOB 0x01800003
170
171/* PLA_RXFIFO_CTRL1 */
172#define RXFIFO_THR2_FULL 0x00000060
173#define RXFIFO_THR2_HIGH 0x00000038
174#define RXFIFO_THR2_OOB 0x0000004a
hayeswang43779f82014-01-02 11:25:10 +0800175#define RXFIFO_THR2_NORMAL 0x00a0
hayeswangac718b62013-05-02 16:01:25 +0000176
177/* PLA_RXFIFO_CTRL2 */
178#define RXFIFO_THR3_FULL 0x00000078
179#define RXFIFO_THR3_HIGH 0x00000048
180#define RXFIFO_THR3_OOB 0x0000005a
hayeswang43779f82014-01-02 11:25:10 +0800181#define RXFIFO_THR3_NORMAL 0x0110
hayeswangac718b62013-05-02 16:01:25 +0000182
183/* PLA_TXFIFO_CTRL */
184#define TXFIFO_THR_NORMAL 0x00400008
hayeswang43779f82014-01-02 11:25:10 +0800185#define TXFIFO_THR_NORMAL2 0x01000008
hayeswangac718b62013-05-02 16:01:25 +0000186
hayeswang65bab842015-02-12 16:20:46 +0800187/* PLA_DMY_REG0 */
188#define ECM_ALDPS 0x0002
189
hayeswangac718b62013-05-02 16:01:25 +0000190/* PLA_FMC */
191#define FMC_FCR_MCU_EN 0x0001
192
193/* PLA_EEEP_CR */
194#define EEEP_CR_EEEP_TX 0x0002
195
hayeswang43779f82014-01-02 11:25:10 +0800196/* PLA_WDT6_CTRL */
197#define WDT6_SET_MODE 0x0010
198
hayeswangac718b62013-05-02 16:01:25 +0000199/* PLA_TCR0 */
200#define TCR0_TX_EMPTY 0x0800
201#define TCR0_AUTO_FIFO 0x0080
202
203/* PLA_TCR1 */
204#define VERSION_MASK 0x7cf0
205
hayeswang69b4b7a2014-07-10 10:58:54 +0800206/* PLA_MTPS */
207#define MTPS_JUMBO (12 * 1024 / 64)
208#define MTPS_DEFAULT (6 * 1024 / 64)
209
hayeswang4f1d4d52014-03-11 16:24:19 +0800210/* PLA_RSTTALLY */
211#define TALLY_RESET 0x0001
212
hayeswangac718b62013-05-02 16:01:25 +0000213/* PLA_CR */
214#define CR_RST 0x10
215#define CR_RE 0x08
216#define CR_TE 0x04
217
218/* PLA_CRWECR */
219#define CRWECR_NORAML 0x00
220#define CRWECR_CONFIG 0xc0
221
222/* PLA_OOB_CTRL */
223#define NOW_IS_OOB 0x80
224#define TXFIFO_EMPTY 0x20
225#define RXFIFO_EMPTY 0x10
226#define LINK_LIST_READY 0x02
227#define DIS_MCU_CLROOB 0x01
228#define FIFO_EMPTY (TXFIFO_EMPTY | RXFIFO_EMPTY)
229
230/* PLA_MISC_1 */
231#define RXDY_GATED_EN 0x0008
232
233/* PLA_SFF_STS_7 */
234#define RE_INIT_LL 0x8000
235#define MCU_BORW_EN 0x4000
236
237/* PLA_CPCR */
238#define CPCR_RX_VLAN 0x0040
239
240/* PLA_CFG_WOL */
241#define MAGIC_EN 0x0001
242
hayeswang43779f82014-01-02 11:25:10 +0800243/* PLA_TEREDO_CFG */
244#define TEREDO_SEL 0x8000
245#define TEREDO_WAKE_MASK 0x7f00
246#define TEREDO_RS_EVENT_MASK 0x00fe
247#define OOB_TEREDO_EN 0x0001
248
hayeswangac718b62013-05-02 16:01:25 +0000249/* PAL_BDC_CR */
250#define ALDPS_PROXY_MODE 0x0001
251
hayeswang21ff2e82014-02-18 21:49:06 +0800252/* PLA_CONFIG34 */
253#define LINK_ON_WAKE_EN 0x0010
254#define LINK_OFF_WAKE_EN 0x0008
255
hayeswangac718b62013-05-02 16:01:25 +0000256/* PLA_CONFIG5 */
hayeswang21ff2e82014-02-18 21:49:06 +0800257#define BWF_EN 0x0040
258#define MWF_EN 0x0020
259#define UWF_EN 0x0010
hayeswangac718b62013-05-02 16:01:25 +0000260#define LAN_WAKE_EN 0x0002
261
262/* PLA_LED_FEATURE */
263#define LED_MODE_MASK 0x0700
264
265/* PLA_PHY_PWR */
266#define TX_10M_IDLE_EN 0x0080
267#define PFM_PWM_SWITCH 0x0040
268
269/* PLA_MAC_PWR_CTRL */
270#define D3_CLK_GATED_EN 0x00004000
271#define MCU_CLK_RATIO 0x07010f07
272#define MCU_CLK_RATIO_MASK 0x0f0f0f0f
hayeswang43779f82014-01-02 11:25:10 +0800273#define ALDPS_SPDWN_RATIO 0x0f87
274
275/* PLA_MAC_PWR_CTRL2 */
276#define EEE_SPDWN_RATIO 0x8007
277
278/* PLA_MAC_PWR_CTRL3 */
279#define PKT_AVAIL_SPDWN_EN 0x0100
280#define SUSPEND_SPDWN_EN 0x0004
281#define U1U2_SPDWN_EN 0x0002
282#define L1_SPDWN_EN 0x0001
283
284/* PLA_MAC_PWR_CTRL4 */
285#define PWRSAVE_SPDWN_EN 0x1000
286#define RXDV_SPDWN_EN 0x0800
287#define TX10MIDLE_EN 0x0100
288#define TP100_SPDWN_EN 0x0020
289#define TP500_SPDWN_EN 0x0010
290#define TP1000_SPDWN_EN 0x0008
291#define EEE_SPDWN_EN 0x0001
hayeswangac718b62013-05-02 16:01:25 +0000292
293/* PLA_GPHY_INTR_IMR */
294#define GPHY_STS_MSK 0x0001
295#define SPEED_DOWN_MSK 0x0002
296#define SPDWN_RXDV_MSK 0x0004
297#define SPDWN_LINKCHG_MSK 0x0008
298
299/* PLA_PHYAR */
300#define PHYAR_FLAG 0x80000000
301
302/* PLA_EEE_CR */
303#define EEE_RX_EN 0x0001
304#define EEE_TX_EN 0x0002
305
hayeswang43779f82014-01-02 11:25:10 +0800306/* PLA_BOOT_CTRL */
307#define AUTOLOAD_DONE 0x0002
308
hayeswang65bab842015-02-12 16:20:46 +0800309/* USB_USB2PHY */
310#define USB2PHY_SUSPEND 0x0001
311#define USB2PHY_L1 0x0002
312
313/* USB_SSPHYLINK2 */
314#define pwd_dn_scale_mask 0x3ffe
315#define pwd_dn_scale(x) ((x) << 1)
316
317/* USB_CSR_DUMMY1 */
318#define DYNAMIC_BURST 0x0001
319
320/* USB_CSR_DUMMY2 */
321#define EP4_FULL_FC 0x0001
322
hayeswangac718b62013-05-02 16:01:25 +0000323/* USB_DEV_STAT */
324#define STAT_SPEED_MASK 0x0006
325#define STAT_SPEED_HIGH 0x0000
hayeswanga3cc4652014-07-24 16:37:43 +0800326#define STAT_SPEED_FULL 0x0002
hayeswangac718b62013-05-02 16:01:25 +0000327
328/* USB_TX_AGG */
329#define TX_AGG_MAX_THRESHOLD 0x03
330
331/* USB_RX_BUF_TH */
hayeswang43779f82014-01-02 11:25:10 +0800332#define RX_THR_SUPPER 0x0c350180
hayeswang8e1f51b2014-01-02 11:22:41 +0800333#define RX_THR_HIGH 0x7a120180
hayeswang43779f82014-01-02 11:25:10 +0800334#define RX_THR_SLOW 0xffff0180
hayeswangac718b62013-05-02 16:01:25 +0000335
336/* USB_TX_DMA */
337#define TEST_MODE_DISABLE 0x00000001
338#define TX_SIZE_ADJUST1 0x00000100
339
340/* USB_UPS_CTRL */
341#define POWER_CUT 0x0100
342
343/* USB_PM_CTRL_STATUS */
hayeswang8e1f51b2014-01-02 11:22:41 +0800344#define RESUME_INDICATE 0x0001
hayeswangac718b62013-05-02 16:01:25 +0000345
346/* USB_USB_CTRL */
347#define RX_AGG_DISABLE 0x0010
hayeswange90fba82015-07-31 11:23:39 +0800348#define RX_ZERO_EN 0x0080
hayeswangac718b62013-05-02 16:01:25 +0000349
hayeswang43779f82014-01-02 11:25:10 +0800350/* USB_U2P3_CTRL */
351#define U2P3_ENABLE 0x0001
352
353/* USB_POWER_CUT */
354#define PWR_EN 0x0001
355#define PHASE2_EN 0x0008
356
357/* USB_MISC_0 */
358#define PCUT_STATUS 0x0001
359
hayeswang464ec102015-02-12 14:33:46 +0800360/* USB_RX_EARLY_TIMEOUT */
361#define COALESCE_SUPER 85000U
362#define COALESCE_HIGH 250000U
363#define COALESCE_SLOW 524280U
hayeswang43779f82014-01-02 11:25:10 +0800364
365/* USB_WDT11_CTRL */
366#define TIMER11_EN 0x0001
367
368/* USB_LPM_CTRL */
hayeswang65bab842015-02-12 16:20:46 +0800369/* bit 4 ~ 5: fifo empty boundary */
370#define FIFO_EMPTY_1FB 0x30 /* 0x1fb * 64 = 32448 bytes */
371/* bit 2 ~ 3: LMP timer */
hayeswang43779f82014-01-02 11:25:10 +0800372#define LPM_TIMER_MASK 0x0c
373#define LPM_TIMER_500MS 0x04 /* 500 ms */
374#define LPM_TIMER_500US 0x0c /* 500 us */
hayeswang65bab842015-02-12 16:20:46 +0800375#define ROK_EXIT_LPM 0x02
hayeswang43779f82014-01-02 11:25:10 +0800376
377/* USB_AFE_CTRL2 */
378#define SEN_VAL_MASK 0xf800
379#define SEN_VAL_NORMAL 0xa000
380#define SEL_RXIDLE 0x0100
381
hayeswangac718b62013-05-02 16:01:25 +0000382/* OCP_ALDPS_CONFIG */
383#define ENPWRSAVE 0x8000
384#define ENPDNPS 0x0200
385#define LINKENA 0x0100
386#define DIS_SDSAVE 0x0010
387
hayeswang43779f82014-01-02 11:25:10 +0800388/* OCP_PHY_STATUS */
389#define PHY_STAT_MASK 0x0007
390#define PHY_STAT_LAN_ON 3
391#define PHY_STAT_PWRDN 5
392
393/* OCP_POWER_CFG */
394#define EEE_CLKDIV_EN 0x8000
395#define EN_ALDPS 0x0004
396#define EN_10M_PLLOFF 0x0001
397
hayeswangac718b62013-05-02 16:01:25 +0000398/* OCP_EEE_CONFIG1 */
399#define RG_TXLPI_MSK_HFDUP 0x8000
400#define RG_MATCLR_EN 0x4000
401#define EEE_10_CAP 0x2000
402#define EEE_NWAY_EN 0x1000
403#define TX_QUIET_EN 0x0200
404#define RX_QUIET_EN 0x0100
hayeswangd24f6132014-09-25 20:54:01 +0800405#define sd_rise_time_mask 0x0070
hayeswang4c4a6b12014-09-25 20:54:00 +0800406#define sd_rise_time(x) (min(x, 7) << 4) /* bit 4 ~ 6 */
hayeswangac718b62013-05-02 16:01:25 +0000407#define RG_RXLPI_MSK_HFDUP 0x0008
408#define SDFALLTIME 0x0007 /* bit 0 ~ 2 */
409
410/* OCP_EEE_CONFIG2 */
411#define RG_LPIHYS_NUM 0x7000 /* bit 12 ~ 15 */
412#define RG_DACQUIET_EN 0x0400
413#define RG_LDVQUIET_EN 0x0200
414#define RG_CKRSEL 0x0020
415#define RG_EEEPRG_EN 0x0010
416
417/* OCP_EEE_CONFIG3 */
hayeswangd24f6132014-09-25 20:54:01 +0800418#define fast_snr_mask 0xff80
hayeswang4c4a6b12014-09-25 20:54:00 +0800419#define fast_snr(x) (min(x, 0x1ff) << 7) /* bit 7 ~ 15 */
hayeswangac718b62013-05-02 16:01:25 +0000420#define RG_LFS_SEL 0x0060 /* bit 6 ~ 5 */
421#define MSK_PH 0x0006 /* bit 0 ~ 3 */
422
423/* OCP_EEE_AR */
424/* bit[15:14] function */
425#define FUN_ADDR 0x0000
426#define FUN_DATA 0x4000
427/* bit[4:0] device addr */
hayeswangac718b62013-05-02 16:01:25 +0000428
hayeswang43779f82014-01-02 11:25:10 +0800429/* OCP_EEE_CFG */
430#define CTAP_SHORT_EN 0x0040
431#define EEE10_EN 0x0010
432
433/* OCP_DOWN_SPEED */
434#define EN_10M_BGOFF 0x0080
435
hayeswang2dd49e02015-09-07 11:57:44 +0800436/* OCP_PHY_STATE */
437#define TXDIS_STATE 0x01
438#define ABD_STATE 0x02
439
hayeswang43779f82014-01-02 11:25:10 +0800440/* OCP_ADC_CFG */
441#define CKADSEL_L 0x0100
442#define ADC_EN 0x0080
443#define EN_EMI_L 0x0040
444
445/* SRAM_LPF_CFG */
446#define LPF_AUTO_TUNE 0x8000
447
448/* SRAM_10M_AMP1 */
449#define GDAC_IB_UPALL 0x0008
450
451/* SRAM_10M_AMP2 */
452#define AMP_DN 0x0200
453
454/* SRAM_IMPEDANCE */
455#define RX_DRIVING_MASK 0x6000
456
hayeswangac718b62013-05-02 16:01:25 +0000457enum rtl_register_content {
hayeswang43779f82014-01-02 11:25:10 +0800458 _1000bps = 0x10,
hayeswangac718b62013-05-02 16:01:25 +0000459 _100bps = 0x08,
460 _10bps = 0x04,
461 LINK_STATUS = 0x02,
462 FULL_DUP = 0x01,
463};
464
hayeswang1764bcd2014-08-28 10:24:18 +0800465#define RTL8152_MAX_TX 4
hayeswangebc2ec482013-08-14 20:54:38 +0800466#define RTL8152_MAX_RX 10
hayeswang40a82912013-08-14 20:54:40 +0800467#define INTBUFSIZE 2
hayeswang8e1f51b2014-01-02 11:22:41 +0800468#define CRC_SIZE 4
469#define TX_ALIGN 4
470#define RX_ALIGN 8
hayeswang40a82912013-08-14 20:54:40 +0800471
472#define INTR_LINK 0x0004
hayeswangebc2ec482013-08-14 20:54:38 +0800473
hayeswangac718b62013-05-02 16:01:25 +0000474#define RTL8152_REQT_READ 0xc0
475#define RTL8152_REQT_WRITE 0x40
476#define RTL8152_REQ_GET_REGS 0x05
477#define RTL8152_REQ_SET_REGS 0x05
478
479#define BYTE_EN_DWORD 0xff
480#define BYTE_EN_WORD 0x33
481#define BYTE_EN_BYTE 0x11
482#define BYTE_EN_SIX_BYTES 0x3f
483#define BYTE_EN_START_MASK 0x0f
484#define BYTE_EN_END_MASK 0xf0
485
hayeswang69b4b7a2014-07-10 10:58:54 +0800486#define RTL8153_MAX_PACKET 9216 /* 9K */
487#define RTL8153_MAX_MTU (RTL8153_MAX_PACKET - VLAN_ETH_HLEN - VLAN_HLEN)
hayeswangac718b62013-05-02 16:01:25 +0000488#define RTL8152_RMS (VLAN_ETH_FRAME_LEN + VLAN_HLEN)
hayeswang69b4b7a2014-07-10 10:58:54 +0800489#define RTL8153_RMS RTL8153_MAX_PACKET
hayeswangb8125402014-07-03 11:55:48 +0800490#define RTL8152_TX_TIMEOUT (5 * HZ)
hayeswangd823ab62015-01-12 12:06:23 +0800491#define RTL8152_NAPI_WEIGHT 64
hayeswangac718b62013-05-02 16:01:25 +0000492
493/* rtl8152 flags */
494enum rtl8152_flags {
495 RTL8152_UNPLUG = 0,
hayeswangac718b62013-05-02 16:01:25 +0000496 RTL8152_SET_RX_MODE,
hayeswang40a82912013-08-14 20:54:40 +0800497 WORK_ENABLE,
498 RTL8152_LINK_CHG,
hayeswang9a4be1b2014-02-18 21:49:07 +0800499 SELECTIVE_SUSPEND,
hayeswangaa66a5f2014-02-18 21:49:04 +0800500 PHY_RESET,
hayeswangd823ab62015-01-12 12:06:23 +0800501 SCHEDULE_NAPI,
hayeswangac718b62013-05-02 16:01:25 +0000502};
503
504/* Define these values to match your device */
505#define VENDOR_ID_REALTEK 0x0bda
hayeswang43779f82014-01-02 11:25:10 +0800506#define VENDOR_ID_SAMSUNG 0x04e8
Christian Hesse347eec32015-03-31 14:10:07 +0200507#define VENDOR_ID_LENOVO 0x17ef
Zheng Liud065c3c12015-07-07 13:54:12 -0700508#define VENDOR_ID_NVIDIA 0x0955
hayeswangac718b62013-05-02 16:01:25 +0000509
510#define MCU_TYPE_PLA 0x0100
511#define MCU_TYPE_USB 0x0000
512
hayeswang4f1d4d52014-03-11 16:24:19 +0800513struct tally_counter {
514 __le64 tx_packets;
515 __le64 rx_packets;
516 __le64 tx_errors;
517 __le32 rx_errors;
518 __le16 rx_missed;
519 __le16 align_errors;
520 __le32 tx_one_collision;
521 __le32 tx_multi_collision;
522 __le64 rx_unicast;
523 __le64 rx_broadcast;
524 __le32 rx_multicast;
525 __le16 tx_aborted;
hayeswangf37119c2014-10-28 14:05:51 +0800526 __le16 tx_underrun;
hayeswang4f1d4d52014-03-11 16:24:19 +0800527};
528
hayeswangac718b62013-05-02 16:01:25 +0000529struct rx_desc {
hayeswang500b6d72013-11-20 17:30:57 +0800530 __le32 opts1;
hayeswangac718b62013-05-02 16:01:25 +0000531#define RX_LEN_MASK 0x7fff
hayeswang565cab02014-03-07 11:04:38 +0800532
hayeswang500b6d72013-11-20 17:30:57 +0800533 __le32 opts2;
hayeswangf5aaaa62015-02-06 11:30:51 +0800534#define RD_UDP_CS BIT(23)
535#define RD_TCP_CS BIT(22)
536#define RD_IPV6_CS BIT(20)
537#define RD_IPV4_CS BIT(19)
hayeswang565cab02014-03-07 11:04:38 +0800538
hayeswang500b6d72013-11-20 17:30:57 +0800539 __le32 opts3;
hayeswangf5aaaa62015-02-06 11:30:51 +0800540#define IPF BIT(23) /* IP checksum fail */
541#define UDPF BIT(22) /* UDP checksum fail */
542#define TCPF BIT(21) /* TCP checksum fail */
543#define RX_VLAN_TAG BIT(16)
hayeswang565cab02014-03-07 11:04:38 +0800544
hayeswang500b6d72013-11-20 17:30:57 +0800545 __le32 opts4;
546 __le32 opts5;
547 __le32 opts6;
hayeswangac718b62013-05-02 16:01:25 +0000548};
549
550struct tx_desc {
hayeswang500b6d72013-11-20 17:30:57 +0800551 __le32 opts1;
hayeswangf5aaaa62015-02-06 11:30:51 +0800552#define TX_FS BIT(31) /* First segment of a packet */
553#define TX_LS BIT(30) /* Final segment of a packet */
554#define GTSENDV4 BIT(28)
555#define GTSENDV6 BIT(27)
hayeswang60c89072014-03-07 11:04:39 +0800556#define GTTCPHO_SHIFT 18
hayeswang6128d1bb2014-03-07 11:04:40 +0800557#define GTTCPHO_MAX 0x7fU
hayeswang60c89072014-03-07 11:04:39 +0800558#define TX_LEN_MAX 0x3ffffU
hayeswang5bd23882013-08-14 20:54:39 +0800559
hayeswang500b6d72013-11-20 17:30:57 +0800560 __le32 opts2;
hayeswangf5aaaa62015-02-06 11:30:51 +0800561#define UDP_CS BIT(31) /* Calculate UDP/IP checksum */
562#define TCP_CS BIT(30) /* Calculate TCP/IP checksum */
563#define IPV4_CS BIT(29) /* Calculate IPv4 checksum */
564#define IPV6_CS BIT(28) /* Calculate IPv6 checksum */
hayeswang60c89072014-03-07 11:04:39 +0800565#define MSS_SHIFT 17
566#define MSS_MAX 0x7ffU
567#define TCPHO_SHIFT 17
hayeswang6128d1bb2014-03-07 11:04:40 +0800568#define TCPHO_MAX 0x7ffU
hayeswangf5aaaa62015-02-06 11:30:51 +0800569#define TX_VLAN_TAG BIT(16)
hayeswangac718b62013-05-02 16:01:25 +0000570};
571
hayeswangdff4e8a2013-08-16 16:09:33 +0800572struct r8152;
573
hayeswangebc2ec482013-08-14 20:54:38 +0800574struct rx_agg {
575 struct list_head list;
576 struct urb *urb;
hayeswangdff4e8a2013-08-16 16:09:33 +0800577 struct r8152 *context;
hayeswangebc2ec482013-08-14 20:54:38 +0800578 void *buffer;
579 void *head;
580};
581
582struct tx_agg {
583 struct list_head list;
584 struct urb *urb;
hayeswangdff4e8a2013-08-16 16:09:33 +0800585 struct r8152 *context;
hayeswangebc2ec482013-08-14 20:54:38 +0800586 void *buffer;
587 void *head;
588 u32 skb_num;
589 u32 skb_len;
590};
591
hayeswangac718b62013-05-02 16:01:25 +0000592struct r8152 {
593 unsigned long flags;
594 struct usb_device *udev;
hayeswangd823ab62015-01-12 12:06:23 +0800595 struct napi_struct napi;
hayeswang40a82912013-08-14 20:54:40 +0800596 struct usb_interface *intf;
hayeswangac718b62013-05-02 16:01:25 +0000597 struct net_device *netdev;
hayeswang40a82912013-08-14 20:54:40 +0800598 struct urb *intr_urb;
hayeswangebc2ec482013-08-14 20:54:38 +0800599 struct tx_agg tx_info[RTL8152_MAX_TX];
600 struct rx_agg rx_info[RTL8152_MAX_RX];
601 struct list_head rx_done, tx_free;
hayeswangd823ab62015-01-12 12:06:23 +0800602 struct sk_buff_head tx_queue, rx_queue;
hayeswangebc2ec482013-08-14 20:54:38 +0800603 spinlock_t rx_lock, tx_lock;
hayeswangac718b62013-05-02 16:01:25 +0000604 struct delayed_work schedule;
605 struct mii_if_info mii;
hayeswangb5403272014-10-09 18:00:26 +0800606 struct mutex control; /* use for hw setting */
hayeswangc81229c2014-01-02 11:22:42 +0800607
608 struct rtl_ops {
609 void (*init)(struct r8152 *);
610 int (*enable)(struct r8152 *);
611 void (*disable)(struct r8152 *);
hayeswang7e9da482014-02-18 21:49:05 +0800612 void (*up)(struct r8152 *);
hayeswangc81229c2014-01-02 11:22:42 +0800613 void (*down)(struct r8152 *);
614 void (*unload)(struct r8152 *);
hayeswangdf35d282014-09-25 20:54:02 +0800615 int (*eee_get)(struct r8152 *, struct ethtool_eee *);
616 int (*eee_set)(struct r8152 *, struct ethtool_eee *);
hayeswang2dd49e02015-09-07 11:57:44 +0800617 bool (*in_nway)(struct r8152 *);
hayeswangc81229c2014-01-02 11:22:42 +0800618 } rtl_ops;
619
hayeswang40a82912013-08-14 20:54:40 +0800620 int intr_interval;
hayeswang21ff2e82014-02-18 21:49:06 +0800621 u32 saved_wolopts;
hayeswangac718b62013-05-02 16:01:25 +0000622 u32 msg_enable;
hayeswangdd1b1192013-11-20 17:30:56 +0800623 u32 tx_qlen;
hayeswang464ec102015-02-12 14:33:46 +0800624 u32 coalesce;
hayeswangac718b62013-05-02 16:01:25 +0000625 u16 ocp_base;
hayeswang40a82912013-08-14 20:54:40 +0800626 u8 *intr_buff;
hayeswangac718b62013-05-02 16:01:25 +0000627 u8 version;
hayeswangac718b62013-05-02 16:01:25 +0000628};
629
630enum rtl_version {
631 RTL_VER_UNKNOWN = 0,
632 RTL_VER_01,
hayeswang43779f82014-01-02 11:25:10 +0800633 RTL_VER_02,
634 RTL_VER_03,
635 RTL_VER_04,
636 RTL_VER_05,
hayeswangfb02eb42015-07-22 15:27:41 +0800637 RTL_VER_06,
hayeswang43779f82014-01-02 11:25:10 +0800638 RTL_VER_MAX
hayeswangac718b62013-05-02 16:01:25 +0000639};
640
hayeswang60c89072014-03-07 11:04:39 +0800641enum tx_csum_stat {
642 TX_CSUM_SUCCESS = 0,
643 TX_CSUM_TSO,
644 TX_CSUM_NONE
645};
646
hayeswangac718b62013-05-02 16:01:25 +0000647/* Maximum number of multicast addresses to filter (vs. Rx-all-multicast).
648 * The RTL chips use a 64 element hash table based on the Ethernet CRC.
649 */
650static const int multicast_filter_limit = 32;
hayeswang52aec122014-09-02 10:27:52 +0800651static unsigned int agg_buf_sz = 16384;
hayeswangac718b62013-05-02 16:01:25 +0000652
hayeswang52aec122014-09-02 10:27:52 +0800653#define RTL_LIMITED_TSO_SIZE (agg_buf_sz - sizeof(struct tx_desc) - \
hayeswang60c89072014-03-07 11:04:39 +0800654 VLAN_ETH_HLEN - VLAN_HLEN)
655
hayeswangac718b62013-05-02 16:01:25 +0000656static
657int get_registers(struct r8152 *tp, u16 value, u16 index, u16 size, void *data)
658{
hayeswang31787f52013-07-31 17:21:25 +0800659 int ret;
660 void *tmp;
661
662 tmp = kmalloc(size, GFP_KERNEL);
663 if (!tmp)
664 return -ENOMEM;
665
666 ret = usb_control_msg(tp->udev, usb_rcvctrlpipe(tp->udev, 0),
hayeswangb209af92014-08-25 15:53:00 +0800667 RTL8152_REQ_GET_REGS, RTL8152_REQT_READ,
668 value, index, tmp, size, 500);
hayeswang31787f52013-07-31 17:21:25 +0800669
670 memcpy(data, tmp, size);
671 kfree(tmp);
672
673 return ret;
hayeswangac718b62013-05-02 16:01:25 +0000674}
675
676static
677int set_registers(struct r8152 *tp, u16 value, u16 index, u16 size, void *data)
678{
hayeswang31787f52013-07-31 17:21:25 +0800679 int ret;
680 void *tmp;
681
Benoit Tainec4438f02014-05-26 17:21:23 +0200682 tmp = kmemdup(data, size, GFP_KERNEL);
hayeswang31787f52013-07-31 17:21:25 +0800683 if (!tmp)
684 return -ENOMEM;
685
hayeswang31787f52013-07-31 17:21:25 +0800686 ret = usb_control_msg(tp->udev, usb_sndctrlpipe(tp->udev, 0),
hayeswangb209af92014-08-25 15:53:00 +0800687 RTL8152_REQ_SET_REGS, RTL8152_REQT_WRITE,
688 value, index, tmp, size, 500);
hayeswang31787f52013-07-31 17:21:25 +0800689
690 kfree(tmp);
hayeswangdb8515e2014-03-06 15:07:16 +0800691
hayeswang31787f52013-07-31 17:21:25 +0800692 return ret;
hayeswangac718b62013-05-02 16:01:25 +0000693}
694
695static int generic_ocp_read(struct r8152 *tp, u16 index, u16 size,
hayeswangb209af92014-08-25 15:53:00 +0800696 void *data, u16 type)
hayeswangac718b62013-05-02 16:01:25 +0000697{
hayeswang45f4a192014-01-06 17:08:41 +0800698 u16 limit = 64;
699 int ret = 0;
hayeswangac718b62013-05-02 16:01:25 +0000700
701 if (test_bit(RTL8152_UNPLUG, &tp->flags))
702 return -ENODEV;
703
704 /* both size and indix must be 4 bytes align */
705 if ((size & 3) || !size || (index & 3) || !data)
706 return -EPERM;
707
708 if ((u32)index + (u32)size > 0xffff)
709 return -EPERM;
710
711 while (size) {
712 if (size > limit) {
713 ret = get_registers(tp, index, type, limit, data);
714 if (ret < 0)
715 break;
716
717 index += limit;
718 data += limit;
719 size -= limit;
720 } else {
721 ret = get_registers(tp, index, type, size, data);
722 if (ret < 0)
723 break;
724
725 index += size;
726 data += size;
727 size = 0;
728 break;
729 }
730 }
731
hayeswang67610492014-10-30 11:46:40 +0800732 if (ret == -ENODEV)
733 set_bit(RTL8152_UNPLUG, &tp->flags);
734
hayeswangac718b62013-05-02 16:01:25 +0000735 return ret;
736}
737
738static int generic_ocp_write(struct r8152 *tp, u16 index, u16 byteen,
hayeswangb209af92014-08-25 15:53:00 +0800739 u16 size, void *data, u16 type)
hayeswangac718b62013-05-02 16:01:25 +0000740{
hayeswang45f4a192014-01-06 17:08:41 +0800741 int ret;
742 u16 byteen_start, byteen_end, byen;
743 u16 limit = 512;
hayeswangac718b62013-05-02 16:01:25 +0000744
745 if (test_bit(RTL8152_UNPLUG, &tp->flags))
746 return -ENODEV;
747
748 /* both size and indix must be 4 bytes align */
749 if ((size & 3) || !size || (index & 3) || !data)
750 return -EPERM;
751
752 if ((u32)index + (u32)size > 0xffff)
753 return -EPERM;
754
755 byteen_start = byteen & BYTE_EN_START_MASK;
756 byteen_end = byteen & BYTE_EN_END_MASK;
757
758 byen = byteen_start | (byteen_start << 4);
759 ret = set_registers(tp, index, type | byen, 4, data);
760 if (ret < 0)
761 goto error1;
762
763 index += 4;
764 data += 4;
765 size -= 4;
766
767 if (size) {
768 size -= 4;
769
770 while (size) {
771 if (size > limit) {
772 ret = set_registers(tp, index,
hayeswangb209af92014-08-25 15:53:00 +0800773 type | BYTE_EN_DWORD,
774 limit, data);
hayeswangac718b62013-05-02 16:01:25 +0000775 if (ret < 0)
776 goto error1;
777
778 index += limit;
779 data += limit;
780 size -= limit;
781 } else {
782 ret = set_registers(tp, index,
hayeswangb209af92014-08-25 15:53:00 +0800783 type | BYTE_EN_DWORD,
784 size, data);
hayeswangac718b62013-05-02 16:01:25 +0000785 if (ret < 0)
786 goto error1;
787
788 index += size;
789 data += size;
790 size = 0;
791 break;
792 }
793 }
794
795 byen = byteen_end | (byteen_end >> 4);
796 ret = set_registers(tp, index, type | byen, 4, data);
797 if (ret < 0)
798 goto error1;
799 }
800
801error1:
hayeswang67610492014-10-30 11:46:40 +0800802 if (ret == -ENODEV)
803 set_bit(RTL8152_UNPLUG, &tp->flags);
804
hayeswangac718b62013-05-02 16:01:25 +0000805 return ret;
806}
807
808static inline
809int pla_ocp_read(struct r8152 *tp, u16 index, u16 size, void *data)
810{
811 return generic_ocp_read(tp, index, size, data, MCU_TYPE_PLA);
812}
813
814static inline
815int pla_ocp_write(struct r8152 *tp, u16 index, u16 byteen, u16 size, void *data)
816{
817 return generic_ocp_write(tp, index, byteen, size, data, MCU_TYPE_PLA);
818}
819
820static inline
821int usb_ocp_read(struct r8152 *tp, u16 index, u16 size, void *data)
822{
823 return generic_ocp_read(tp, index, size, data, MCU_TYPE_USB);
824}
825
826static inline
827int usb_ocp_write(struct r8152 *tp, u16 index, u16 byteen, u16 size, void *data)
828{
829 return generic_ocp_write(tp, index, byteen, size, data, MCU_TYPE_USB);
830}
831
832static u32 ocp_read_dword(struct r8152 *tp, u16 type, u16 index)
833{
hayeswangc8826de2013-07-31 17:21:26 +0800834 __le32 data;
hayeswangac718b62013-05-02 16:01:25 +0000835
hayeswangc8826de2013-07-31 17:21:26 +0800836 generic_ocp_read(tp, index, sizeof(data), &data, type);
hayeswangac718b62013-05-02 16:01:25 +0000837
838 return __le32_to_cpu(data);
839}
840
841static void ocp_write_dword(struct r8152 *tp, u16 type, u16 index, u32 data)
842{
hayeswangc8826de2013-07-31 17:21:26 +0800843 __le32 tmp = __cpu_to_le32(data);
844
845 generic_ocp_write(tp, index, BYTE_EN_DWORD, sizeof(tmp), &tmp, type);
hayeswangac718b62013-05-02 16:01:25 +0000846}
847
848static u16 ocp_read_word(struct r8152 *tp, u16 type, u16 index)
849{
850 u32 data;
hayeswangc8826de2013-07-31 17:21:26 +0800851 __le32 tmp;
hayeswangac718b62013-05-02 16:01:25 +0000852 u8 shift = index & 2;
853
854 index &= ~3;
855
hayeswangc8826de2013-07-31 17:21:26 +0800856 generic_ocp_read(tp, index, sizeof(tmp), &tmp, type);
hayeswangac718b62013-05-02 16:01:25 +0000857
hayeswangc8826de2013-07-31 17:21:26 +0800858 data = __le32_to_cpu(tmp);
hayeswangac718b62013-05-02 16:01:25 +0000859 data >>= (shift * 8);
860 data &= 0xffff;
861
862 return (u16)data;
863}
864
865static void ocp_write_word(struct r8152 *tp, u16 type, u16 index, u32 data)
866{
hayeswangc8826de2013-07-31 17:21:26 +0800867 u32 mask = 0xffff;
868 __le32 tmp;
hayeswangac718b62013-05-02 16:01:25 +0000869 u16 byen = BYTE_EN_WORD;
870 u8 shift = index & 2;
871
872 data &= mask;
873
874 if (index & 2) {
875 byen <<= shift;
876 mask <<= (shift * 8);
877 data <<= (shift * 8);
878 index &= ~3;
879 }
880
hayeswangc8826de2013-07-31 17:21:26 +0800881 tmp = __cpu_to_le32(data);
hayeswangac718b62013-05-02 16:01:25 +0000882
hayeswangc8826de2013-07-31 17:21:26 +0800883 generic_ocp_write(tp, index, byen, sizeof(tmp), &tmp, type);
hayeswangac718b62013-05-02 16:01:25 +0000884}
885
886static u8 ocp_read_byte(struct r8152 *tp, u16 type, u16 index)
887{
888 u32 data;
hayeswangc8826de2013-07-31 17:21:26 +0800889 __le32 tmp;
hayeswangac718b62013-05-02 16:01:25 +0000890 u8 shift = index & 3;
891
892 index &= ~3;
893
hayeswangc8826de2013-07-31 17:21:26 +0800894 generic_ocp_read(tp, index, sizeof(tmp), &tmp, type);
hayeswangac718b62013-05-02 16:01:25 +0000895
hayeswangc8826de2013-07-31 17:21:26 +0800896 data = __le32_to_cpu(tmp);
hayeswangac718b62013-05-02 16:01:25 +0000897 data >>= (shift * 8);
898 data &= 0xff;
899
900 return (u8)data;
901}
902
903static void ocp_write_byte(struct r8152 *tp, u16 type, u16 index, u32 data)
904{
hayeswangc8826de2013-07-31 17:21:26 +0800905 u32 mask = 0xff;
906 __le32 tmp;
hayeswangac718b62013-05-02 16:01:25 +0000907 u16 byen = BYTE_EN_BYTE;
908 u8 shift = index & 3;
909
910 data &= mask;
911
912 if (index & 3) {
913 byen <<= shift;
914 mask <<= (shift * 8);
915 data <<= (shift * 8);
916 index &= ~3;
917 }
918
hayeswangc8826de2013-07-31 17:21:26 +0800919 tmp = __cpu_to_le32(data);
hayeswangac718b62013-05-02 16:01:25 +0000920
hayeswangc8826de2013-07-31 17:21:26 +0800921 generic_ocp_write(tp, index, byen, sizeof(tmp), &tmp, type);
hayeswangac718b62013-05-02 16:01:25 +0000922}
923
hayeswangac244d32014-01-02 11:22:40 +0800924static u16 ocp_reg_read(struct r8152 *tp, u16 addr)
925{
926 u16 ocp_base, ocp_index;
927
928 ocp_base = addr & 0xf000;
929 if (ocp_base != tp->ocp_base) {
930 ocp_write_word(tp, MCU_TYPE_PLA, PLA_OCP_GPHY_BASE, ocp_base);
931 tp->ocp_base = ocp_base;
932 }
933
934 ocp_index = (addr & 0x0fff) | 0xb000;
935 return ocp_read_word(tp, MCU_TYPE_PLA, ocp_index);
936}
937
hayeswange3fe0b12014-01-02 11:22:39 +0800938static void ocp_reg_write(struct r8152 *tp, u16 addr, u16 data)
939{
940 u16 ocp_base, ocp_index;
941
942 ocp_base = addr & 0xf000;
943 if (ocp_base != tp->ocp_base) {
944 ocp_write_word(tp, MCU_TYPE_PLA, PLA_OCP_GPHY_BASE, ocp_base);
945 tp->ocp_base = ocp_base;
946 }
947
948 ocp_index = (addr & 0x0fff) | 0xb000;
949 ocp_write_word(tp, MCU_TYPE_PLA, ocp_index, data);
950}
951
hayeswangac244d32014-01-02 11:22:40 +0800952static inline void r8152_mdio_write(struct r8152 *tp, u32 reg_addr, u32 value)
hayeswangac718b62013-05-02 16:01:25 +0000953{
hayeswangac244d32014-01-02 11:22:40 +0800954 ocp_reg_write(tp, OCP_BASE_MII + reg_addr * 2, value);
hayeswangac718b62013-05-02 16:01:25 +0000955}
956
hayeswangac244d32014-01-02 11:22:40 +0800957static inline int r8152_mdio_read(struct r8152 *tp, u32 reg_addr)
hayeswangac718b62013-05-02 16:01:25 +0000958{
hayeswangac244d32014-01-02 11:22:40 +0800959 return ocp_reg_read(tp, OCP_BASE_MII + reg_addr * 2);
hayeswangac718b62013-05-02 16:01:25 +0000960}
961
hayeswang43779f82014-01-02 11:25:10 +0800962static void sram_write(struct r8152 *tp, u16 addr, u16 data)
963{
964 ocp_reg_write(tp, OCP_SRAM_ADDR, addr);
965 ocp_reg_write(tp, OCP_SRAM_DATA, data);
966}
967
hayeswangac718b62013-05-02 16:01:25 +0000968static int read_mii_word(struct net_device *netdev, int phy_id, int reg)
969{
970 struct r8152 *tp = netdev_priv(netdev);
hayeswang9a4be1b2014-02-18 21:49:07 +0800971 int ret;
hayeswangac718b62013-05-02 16:01:25 +0000972
hayeswang68714382014-04-11 17:54:31 +0800973 if (test_bit(RTL8152_UNPLUG, &tp->flags))
974 return -ENODEV;
975
hayeswangac718b62013-05-02 16:01:25 +0000976 if (phy_id != R8152_PHY_ID)
977 return -EINVAL;
978
hayeswang9a4be1b2014-02-18 21:49:07 +0800979 ret = r8152_mdio_read(tp, reg);
980
hayeswang9a4be1b2014-02-18 21:49:07 +0800981 return ret;
hayeswangac718b62013-05-02 16:01:25 +0000982}
983
984static
985void write_mii_word(struct net_device *netdev, int phy_id, int reg, int val)
986{
987 struct r8152 *tp = netdev_priv(netdev);
988
hayeswang68714382014-04-11 17:54:31 +0800989 if (test_bit(RTL8152_UNPLUG, &tp->flags))
990 return;
991
hayeswangac718b62013-05-02 16:01:25 +0000992 if (phy_id != R8152_PHY_ID)
993 return;
994
995 r8152_mdio_write(tp, reg, val);
996}
997
hayeswangb209af92014-08-25 15:53:00 +0800998static int
999r8152_submit_rx(struct r8152 *tp, struct rx_agg *agg, gfp_t mem_flags);
hayeswangebc2ec482013-08-14 20:54:38 +08001000
hayeswang8ba789a2014-09-04 16:15:41 +08001001static int rtl8152_set_mac_address(struct net_device *netdev, void *p)
1002{
1003 struct r8152 *tp = netdev_priv(netdev);
1004 struct sockaddr *addr = p;
hayeswangea6a7112014-10-02 17:03:12 +08001005 int ret = -EADDRNOTAVAIL;
hayeswang8ba789a2014-09-04 16:15:41 +08001006
1007 if (!is_valid_ether_addr(addr->sa_data))
hayeswangea6a7112014-10-02 17:03:12 +08001008 goto out1;
1009
1010 ret = usb_autopm_get_interface(tp->intf);
1011 if (ret < 0)
1012 goto out1;
hayeswang8ba789a2014-09-04 16:15:41 +08001013
hayeswangb5403272014-10-09 18:00:26 +08001014 mutex_lock(&tp->control);
1015
hayeswang8ba789a2014-09-04 16:15:41 +08001016 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
1017
1018 ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CRWECR, CRWECR_CONFIG);
1019 pla_ocp_write(tp, PLA_IDR, BYTE_EN_SIX_BYTES, 8, addr->sa_data);
1020 ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CRWECR, CRWECR_NORAML);
1021
hayeswangb5403272014-10-09 18:00:26 +08001022 mutex_unlock(&tp->control);
1023
hayeswangea6a7112014-10-02 17:03:12 +08001024 usb_autopm_put_interface(tp->intf);
1025out1:
1026 return ret;
hayeswang8ba789a2014-09-04 16:15:41 +08001027}
1028
hayeswang179bb6d2014-09-04 16:15:42 +08001029static int set_ethernet_addr(struct r8152 *tp)
hayeswangac718b62013-05-02 16:01:25 +00001030{
1031 struct net_device *dev = tp->netdev;
hayeswang179bb6d2014-09-04 16:15:42 +08001032 struct sockaddr sa;
hayeswang8a91c822014-02-18 21:49:01 +08001033 int ret;
hayeswangac718b62013-05-02 16:01:25 +00001034
hayeswang8a91c822014-02-18 21:49:01 +08001035 if (tp->version == RTL_VER_01)
hayeswang179bb6d2014-09-04 16:15:42 +08001036 ret = pla_ocp_read(tp, PLA_IDR, 8, sa.sa_data);
hayeswang8a91c822014-02-18 21:49:01 +08001037 else
hayeswang179bb6d2014-09-04 16:15:42 +08001038 ret = pla_ocp_read(tp, PLA_BACKUP, 8, sa.sa_data);
hayeswang8a91c822014-02-18 21:49:01 +08001039
1040 if (ret < 0) {
hayeswang179bb6d2014-09-04 16:15:42 +08001041 netif_err(tp, probe, dev, "Get ether addr fail\n");
1042 } else if (!is_valid_ether_addr(sa.sa_data)) {
1043 netif_err(tp, probe, dev, "Invalid ether addr %pM\n",
1044 sa.sa_data);
1045 eth_hw_addr_random(dev);
1046 ether_addr_copy(sa.sa_data, dev->dev_addr);
1047 ret = rtl8152_set_mac_address(dev, &sa);
1048 netif_info(tp, probe, dev, "Random ether addr %pM\n",
1049 sa.sa_data);
hayeswang8a91c822014-02-18 21:49:01 +08001050 } else {
hayeswang179bb6d2014-09-04 16:15:42 +08001051 if (tp->version == RTL_VER_01)
1052 ether_addr_copy(dev->dev_addr, sa.sa_data);
1053 else
1054 ret = rtl8152_set_mac_address(dev, &sa);
hayeswangac718b62013-05-02 16:01:25 +00001055 }
hayeswang179bb6d2014-09-04 16:15:42 +08001056
1057 return ret;
hayeswangac718b62013-05-02 16:01:25 +00001058}
1059
hayeswangac718b62013-05-02 16:01:25 +00001060static void read_bulk_callback(struct urb *urb)
1061{
hayeswangac718b62013-05-02 16:01:25 +00001062 struct net_device *netdev;
hayeswangac718b62013-05-02 16:01:25 +00001063 int status = urb->status;
hayeswangebc2ec482013-08-14 20:54:38 +08001064 struct rx_agg *agg;
1065 struct r8152 *tp;
hayeswangac718b62013-05-02 16:01:25 +00001066
hayeswangebc2ec482013-08-14 20:54:38 +08001067 agg = urb->context;
1068 if (!agg)
1069 return;
1070
1071 tp = agg->context;
hayeswangac718b62013-05-02 16:01:25 +00001072 if (!tp)
1073 return;
hayeswangebc2ec482013-08-14 20:54:38 +08001074
hayeswangac718b62013-05-02 16:01:25 +00001075 if (test_bit(RTL8152_UNPLUG, &tp->flags))
1076 return;
hayeswangebc2ec482013-08-14 20:54:38 +08001077
1078 if (!test_bit(WORK_ENABLE, &tp->flags))
hayeswangac718b62013-05-02 16:01:25 +00001079 return;
1080
hayeswangebc2ec482013-08-14 20:54:38 +08001081 netdev = tp->netdev;
hayeswang7559fb2f2013-08-16 16:09:38 +08001082
1083 /* When link down, the driver would cancel all bulks. */
1084 /* This avoid the re-submitting bulk */
hayeswangebc2ec482013-08-14 20:54:38 +08001085 if (!netif_carrier_ok(netdev))
1086 return;
1087
hayeswang9a4be1b2014-02-18 21:49:07 +08001088 usb_mark_last_busy(tp->udev);
1089
hayeswangac718b62013-05-02 16:01:25 +00001090 switch (status) {
1091 case 0:
hayeswangebc2ec482013-08-14 20:54:38 +08001092 if (urb->actual_length < ETH_ZLEN)
1093 break;
1094
hayeswang2685d412014-03-07 11:04:34 +08001095 spin_lock(&tp->rx_lock);
hayeswangebc2ec482013-08-14 20:54:38 +08001096 list_add_tail(&agg->list, &tp->rx_done);
hayeswang2685d412014-03-07 11:04:34 +08001097 spin_unlock(&tp->rx_lock);
hayeswangd823ab62015-01-12 12:06:23 +08001098 napi_schedule(&tp->napi);
hayeswangebc2ec482013-08-14 20:54:38 +08001099 return;
hayeswangac718b62013-05-02 16:01:25 +00001100 case -ESHUTDOWN:
1101 set_bit(RTL8152_UNPLUG, &tp->flags);
1102 netif_device_detach(tp->netdev);
hayeswangebc2ec482013-08-14 20:54:38 +08001103 return;
hayeswangac718b62013-05-02 16:01:25 +00001104 case -ENOENT:
1105 return; /* the urb is in unlink state */
1106 case -ETIME:
Hayes Wang4a8deae2014-01-07 11:18:22 +08001107 if (net_ratelimit())
1108 netdev_warn(netdev, "maybe reset is needed?\n");
hayeswangebc2ec482013-08-14 20:54:38 +08001109 break;
hayeswangac718b62013-05-02 16:01:25 +00001110 default:
Hayes Wang4a8deae2014-01-07 11:18:22 +08001111 if (net_ratelimit())
1112 netdev_warn(netdev, "Rx status %d\n", status);
hayeswangebc2ec482013-08-14 20:54:38 +08001113 break;
hayeswangac718b62013-05-02 16:01:25 +00001114 }
1115
hayeswanga0fccd42014-11-20 10:29:05 +08001116 r8152_submit_rx(tp, agg, GFP_ATOMIC);
hayeswangac718b62013-05-02 16:01:25 +00001117}
1118
1119static void write_bulk_callback(struct urb *urb)
1120{
hayeswangebc2ec482013-08-14 20:54:38 +08001121 struct net_device_stats *stats;
hayeswangd104eaf2014-03-06 15:07:17 +08001122 struct net_device *netdev;
hayeswangebc2ec482013-08-14 20:54:38 +08001123 struct tx_agg *agg;
hayeswangac718b62013-05-02 16:01:25 +00001124 struct r8152 *tp;
1125 int status = urb->status;
1126
hayeswangebc2ec482013-08-14 20:54:38 +08001127 agg = urb->context;
1128 if (!agg)
1129 return;
1130
1131 tp = agg->context;
hayeswangac718b62013-05-02 16:01:25 +00001132 if (!tp)
1133 return;
hayeswangebc2ec482013-08-14 20:54:38 +08001134
hayeswangd104eaf2014-03-06 15:07:17 +08001135 netdev = tp->netdev;
hayeswang05e0f1a2014-03-06 15:07:18 +08001136 stats = &netdev->stats;
hayeswangebc2ec482013-08-14 20:54:38 +08001137 if (status) {
Hayes Wang4a8deae2014-01-07 11:18:22 +08001138 if (net_ratelimit())
hayeswangd104eaf2014-03-06 15:07:17 +08001139 netdev_warn(netdev, "Tx status %d\n", status);
hayeswangebc2ec482013-08-14 20:54:38 +08001140 stats->tx_errors += agg->skb_num;
1141 } else {
1142 stats->tx_packets += agg->skb_num;
1143 stats->tx_bytes += agg->skb_len;
1144 }
1145
hayeswang2685d412014-03-07 11:04:34 +08001146 spin_lock(&tp->tx_lock);
hayeswangebc2ec482013-08-14 20:54:38 +08001147 list_add_tail(&agg->list, &tp->tx_free);
hayeswang2685d412014-03-07 11:04:34 +08001148 spin_unlock(&tp->tx_lock);
hayeswangebc2ec482013-08-14 20:54:38 +08001149
hayeswang9a4be1b2014-02-18 21:49:07 +08001150 usb_autopm_put_interface_async(tp->intf);
1151
hayeswangd104eaf2014-03-06 15:07:17 +08001152 if (!netif_carrier_ok(netdev))
hayeswangac718b62013-05-02 16:01:25 +00001153 return;
hayeswangebc2ec482013-08-14 20:54:38 +08001154
1155 if (!test_bit(WORK_ENABLE, &tp->flags))
1156 return;
1157
1158 if (test_bit(RTL8152_UNPLUG, &tp->flags))
1159 return;
1160
1161 if (!skb_queue_empty(&tp->tx_queue))
hayeswangd823ab62015-01-12 12:06:23 +08001162 napi_schedule(&tp->napi);
hayeswangebc2ec482013-08-14 20:54:38 +08001163}
1164
hayeswang40a82912013-08-14 20:54:40 +08001165static void intr_callback(struct urb *urb)
1166{
1167 struct r8152 *tp;
hayeswang500b6d72013-11-20 17:30:57 +08001168 __le16 *d;
hayeswang40a82912013-08-14 20:54:40 +08001169 int status = urb->status;
1170 int res;
1171
1172 tp = urb->context;
1173 if (!tp)
1174 return;
1175
1176 if (!test_bit(WORK_ENABLE, &tp->flags))
1177 return;
1178
1179 if (test_bit(RTL8152_UNPLUG, &tp->flags))
1180 return;
1181
1182 switch (status) {
1183 case 0: /* success */
1184 break;
1185 case -ECONNRESET: /* unlink */
1186 case -ESHUTDOWN:
1187 netif_device_detach(tp->netdev);
1188 case -ENOENT:
hayeswangd59c8762014-10-31 13:35:57 +08001189 case -EPROTO:
1190 netif_info(tp, intr, tp->netdev,
1191 "Stop submitting intr, status %d\n", status);
hayeswang40a82912013-08-14 20:54:40 +08001192 return;
1193 case -EOVERFLOW:
1194 netif_info(tp, intr, tp->netdev, "intr status -EOVERFLOW\n");
1195 goto resubmit;
1196 /* -EPIPE: should clear the halt */
1197 default:
1198 netif_info(tp, intr, tp->netdev, "intr status %d\n", status);
1199 goto resubmit;
1200 }
1201
1202 d = urb->transfer_buffer;
1203 if (INTR_LINK & __le16_to_cpu(d[0])) {
hayeswang51d979f2015-02-06 11:30:47 +08001204 if (!netif_carrier_ok(tp->netdev)) {
hayeswang40a82912013-08-14 20:54:40 +08001205 set_bit(RTL8152_LINK_CHG, &tp->flags);
1206 schedule_delayed_work(&tp->schedule, 0);
1207 }
1208 } else {
hayeswang51d979f2015-02-06 11:30:47 +08001209 if (netif_carrier_ok(tp->netdev)) {
hayeswang40a82912013-08-14 20:54:40 +08001210 set_bit(RTL8152_LINK_CHG, &tp->flags);
1211 schedule_delayed_work(&tp->schedule, 0);
1212 }
1213 }
1214
1215resubmit:
1216 res = usb_submit_urb(urb, GFP_ATOMIC);
hayeswang67610492014-10-30 11:46:40 +08001217 if (res == -ENODEV) {
1218 set_bit(RTL8152_UNPLUG, &tp->flags);
hayeswang40a82912013-08-14 20:54:40 +08001219 netif_device_detach(tp->netdev);
hayeswang67610492014-10-30 11:46:40 +08001220 } else if (res) {
hayeswang40a82912013-08-14 20:54:40 +08001221 netif_err(tp, intr, tp->netdev,
Hayes Wang4a8deae2014-01-07 11:18:22 +08001222 "can't resubmit intr, status %d\n", res);
hayeswang67610492014-10-30 11:46:40 +08001223 }
hayeswang40a82912013-08-14 20:54:40 +08001224}
1225
hayeswangebc2ec482013-08-14 20:54:38 +08001226static inline void *rx_agg_align(void *data)
1227{
hayeswang8e1f51b2014-01-02 11:22:41 +08001228 return (void *)ALIGN((uintptr_t)data, RX_ALIGN);
hayeswangebc2ec482013-08-14 20:54:38 +08001229}
1230
1231static inline void *tx_agg_align(void *data)
1232{
hayeswang8e1f51b2014-01-02 11:22:41 +08001233 return (void *)ALIGN((uintptr_t)data, TX_ALIGN);
hayeswangebc2ec482013-08-14 20:54:38 +08001234}
1235
1236static void free_all_mem(struct r8152 *tp)
1237{
1238 int i;
1239
1240 for (i = 0; i < RTL8152_MAX_RX; i++) {
hayeswang9629e3c2014-01-15 10:42:15 +08001241 usb_free_urb(tp->rx_info[i].urb);
1242 tp->rx_info[i].urb = NULL;
hayeswangebc2ec482013-08-14 20:54:38 +08001243
hayeswang9629e3c2014-01-15 10:42:15 +08001244 kfree(tp->rx_info[i].buffer);
1245 tp->rx_info[i].buffer = NULL;
1246 tp->rx_info[i].head = NULL;
hayeswangebc2ec482013-08-14 20:54:38 +08001247 }
1248
1249 for (i = 0; i < RTL8152_MAX_TX; i++) {
hayeswang9629e3c2014-01-15 10:42:15 +08001250 usb_free_urb(tp->tx_info[i].urb);
1251 tp->tx_info[i].urb = NULL;
hayeswangebc2ec482013-08-14 20:54:38 +08001252
hayeswang9629e3c2014-01-15 10:42:15 +08001253 kfree(tp->tx_info[i].buffer);
1254 tp->tx_info[i].buffer = NULL;
1255 tp->tx_info[i].head = NULL;
hayeswangebc2ec482013-08-14 20:54:38 +08001256 }
hayeswang40a82912013-08-14 20:54:40 +08001257
hayeswang9629e3c2014-01-15 10:42:15 +08001258 usb_free_urb(tp->intr_urb);
1259 tp->intr_urb = NULL;
hayeswang40a82912013-08-14 20:54:40 +08001260
hayeswang9629e3c2014-01-15 10:42:15 +08001261 kfree(tp->intr_buff);
1262 tp->intr_buff = NULL;
hayeswangebc2ec482013-08-14 20:54:38 +08001263}
1264
1265static int alloc_all_mem(struct r8152 *tp)
1266{
1267 struct net_device *netdev = tp->netdev;
hayeswang40a82912013-08-14 20:54:40 +08001268 struct usb_interface *intf = tp->intf;
1269 struct usb_host_interface *alt = intf->cur_altsetting;
1270 struct usb_host_endpoint *ep_intr = alt->endpoint + 2;
hayeswangebc2ec482013-08-14 20:54:38 +08001271 struct urb *urb;
1272 int node, i;
1273 u8 *buf;
1274
1275 node = netdev->dev.parent ? dev_to_node(netdev->dev.parent) : -1;
1276
1277 spin_lock_init(&tp->rx_lock);
1278 spin_lock_init(&tp->tx_lock);
hayeswangebc2ec482013-08-14 20:54:38 +08001279 INIT_LIST_HEAD(&tp->tx_free);
1280 skb_queue_head_init(&tp->tx_queue);
hayeswangd823ab62015-01-12 12:06:23 +08001281 skb_queue_head_init(&tp->rx_queue);
hayeswangebc2ec482013-08-14 20:54:38 +08001282
1283 for (i = 0; i < RTL8152_MAX_RX; i++) {
hayeswang52aec122014-09-02 10:27:52 +08001284 buf = kmalloc_node(agg_buf_sz, GFP_KERNEL, node);
hayeswangebc2ec482013-08-14 20:54:38 +08001285 if (!buf)
1286 goto err1;
1287
1288 if (buf != rx_agg_align(buf)) {
1289 kfree(buf);
hayeswang52aec122014-09-02 10:27:52 +08001290 buf = kmalloc_node(agg_buf_sz + RX_ALIGN, GFP_KERNEL,
hayeswang8e1f51b2014-01-02 11:22:41 +08001291 node);
hayeswangebc2ec482013-08-14 20:54:38 +08001292 if (!buf)
1293 goto err1;
1294 }
1295
1296 urb = usb_alloc_urb(0, GFP_KERNEL);
1297 if (!urb) {
1298 kfree(buf);
1299 goto err1;
1300 }
1301
1302 INIT_LIST_HEAD(&tp->rx_info[i].list);
1303 tp->rx_info[i].context = tp;
1304 tp->rx_info[i].urb = urb;
1305 tp->rx_info[i].buffer = buf;
1306 tp->rx_info[i].head = rx_agg_align(buf);
1307 }
1308
1309 for (i = 0; i < RTL8152_MAX_TX; i++) {
hayeswang52aec122014-09-02 10:27:52 +08001310 buf = kmalloc_node(agg_buf_sz, GFP_KERNEL, node);
hayeswangebc2ec482013-08-14 20:54:38 +08001311 if (!buf)
1312 goto err1;
1313
1314 if (buf != tx_agg_align(buf)) {
1315 kfree(buf);
hayeswang52aec122014-09-02 10:27:52 +08001316 buf = kmalloc_node(agg_buf_sz + TX_ALIGN, GFP_KERNEL,
hayeswang8e1f51b2014-01-02 11:22:41 +08001317 node);
hayeswangebc2ec482013-08-14 20:54:38 +08001318 if (!buf)
1319 goto err1;
1320 }
1321
1322 urb = usb_alloc_urb(0, GFP_KERNEL);
1323 if (!urb) {
1324 kfree(buf);
1325 goto err1;
1326 }
1327
1328 INIT_LIST_HEAD(&tp->tx_info[i].list);
1329 tp->tx_info[i].context = tp;
1330 tp->tx_info[i].urb = urb;
1331 tp->tx_info[i].buffer = buf;
1332 tp->tx_info[i].head = tx_agg_align(buf);
1333
1334 list_add_tail(&tp->tx_info[i].list, &tp->tx_free);
1335 }
1336
hayeswang40a82912013-08-14 20:54:40 +08001337 tp->intr_urb = usb_alloc_urb(0, GFP_KERNEL);
1338 if (!tp->intr_urb)
1339 goto err1;
1340
1341 tp->intr_buff = kmalloc(INTBUFSIZE, GFP_KERNEL);
1342 if (!tp->intr_buff)
1343 goto err1;
1344
1345 tp->intr_interval = (int)ep_intr->desc.bInterval;
1346 usb_fill_int_urb(tp->intr_urb, tp->udev, usb_rcvintpipe(tp->udev, 3),
hayeswangb209af92014-08-25 15:53:00 +08001347 tp->intr_buff, INTBUFSIZE, intr_callback,
1348 tp, tp->intr_interval);
hayeswang40a82912013-08-14 20:54:40 +08001349
hayeswangebc2ec482013-08-14 20:54:38 +08001350 return 0;
1351
1352err1:
1353 free_all_mem(tp);
1354 return -ENOMEM;
1355}
1356
hayeswang0de98f62013-08-16 16:09:35 +08001357static struct tx_agg *r8152_get_tx_agg(struct r8152 *tp)
1358{
1359 struct tx_agg *agg = NULL;
1360 unsigned long flags;
1361
hayeswang21949ab2014-03-07 11:04:35 +08001362 if (list_empty(&tp->tx_free))
1363 return NULL;
1364
hayeswang0de98f62013-08-16 16:09:35 +08001365 spin_lock_irqsave(&tp->tx_lock, flags);
1366 if (!list_empty(&tp->tx_free)) {
1367 struct list_head *cursor;
1368
1369 cursor = tp->tx_free.next;
1370 list_del_init(cursor);
1371 agg = list_entry(cursor, struct tx_agg, list);
1372 }
1373 spin_unlock_irqrestore(&tp->tx_lock, flags);
1374
1375 return agg;
1376}
1377
hayeswangb209af92014-08-25 15:53:00 +08001378/* r8152_csum_workaround()
hayeswang6128d1bb2014-03-07 11:04:40 +08001379 * The hw limites the value the transport offset. When the offset is out of the
1380 * range, calculate the checksum by sw.
1381 */
1382static void r8152_csum_workaround(struct r8152 *tp, struct sk_buff *skb,
1383 struct sk_buff_head *list)
1384{
1385 if (skb_shinfo(skb)->gso_size) {
1386 netdev_features_t features = tp->netdev->features;
1387 struct sk_buff_head seg_list;
1388 struct sk_buff *segs, *nskb;
1389
hayeswanga91d45f2014-07-11 16:48:27 +08001390 features &= ~(NETIF_F_SG | NETIF_F_IPV6_CSUM | NETIF_F_TSO6);
hayeswang6128d1bb2014-03-07 11:04:40 +08001391 segs = skb_gso_segment(skb, features);
1392 if (IS_ERR(segs) || !segs)
1393 goto drop;
1394
1395 __skb_queue_head_init(&seg_list);
1396
1397 do {
1398 nskb = segs;
1399 segs = segs->next;
1400 nskb->next = NULL;
1401 __skb_queue_tail(&seg_list, nskb);
1402 } while (segs);
1403
1404 skb_queue_splice(&seg_list, list);
1405 dev_kfree_skb(skb);
1406 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
1407 if (skb_checksum_help(skb) < 0)
1408 goto drop;
1409
1410 __skb_queue_head(list, skb);
1411 } else {
1412 struct net_device_stats *stats;
1413
1414drop:
1415 stats = &tp->netdev->stats;
1416 stats->tx_dropped++;
1417 dev_kfree_skb(skb);
1418 }
1419}
1420
hayeswangb209af92014-08-25 15:53:00 +08001421/* msdn_giant_send_check()
hayeswang6128d1bb2014-03-07 11:04:40 +08001422 * According to the document of microsoft, the TCP Pseudo Header excludes the
1423 * packet length for IPv6 TCP large packets.
1424 */
1425static int msdn_giant_send_check(struct sk_buff *skb)
1426{
1427 const struct ipv6hdr *ipv6h;
1428 struct tcphdr *th;
hayeswangfcb308d2014-03-11 10:20:32 +08001429 int ret;
1430
1431 ret = skb_cow_head(skb, 0);
1432 if (ret)
1433 return ret;
hayeswang6128d1bb2014-03-07 11:04:40 +08001434
1435 ipv6h = ipv6_hdr(skb);
1436 th = tcp_hdr(skb);
1437
1438 th->check = 0;
1439 th->check = ~tcp_v6_check(0, &ipv6h->saddr, &ipv6h->daddr, 0);
1440
hayeswangfcb308d2014-03-11 10:20:32 +08001441 return ret;
hayeswang6128d1bb2014-03-07 11:04:40 +08001442}
1443
hayeswangc5554292014-09-12 10:43:11 +08001444static inline void rtl_tx_vlan_tag(struct tx_desc *desc, struct sk_buff *skb)
1445{
Jiri Pirkodf8a39d2015-01-13 17:13:44 +01001446 if (skb_vlan_tag_present(skb)) {
hayeswangc5554292014-09-12 10:43:11 +08001447 u32 opts2;
1448
Jiri Pirkodf8a39d2015-01-13 17:13:44 +01001449 opts2 = TX_VLAN_TAG | swab16(skb_vlan_tag_get(skb));
hayeswangc5554292014-09-12 10:43:11 +08001450 desc->opts2 |= cpu_to_le32(opts2);
1451 }
1452}
1453
1454static inline void rtl_rx_vlan_tag(struct rx_desc *desc, struct sk_buff *skb)
1455{
1456 u32 opts2 = le32_to_cpu(desc->opts2);
1457
1458 if (opts2 & RX_VLAN_TAG)
1459 __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q),
1460 swab16(opts2 & 0xffff));
1461}
1462
hayeswang60c89072014-03-07 11:04:39 +08001463static int r8152_tx_csum(struct r8152 *tp, struct tx_desc *desc,
1464 struct sk_buff *skb, u32 len, u32 transport_offset)
1465{
1466 u32 mss = skb_shinfo(skb)->gso_size;
1467 u32 opts1, opts2 = 0;
1468 int ret = TX_CSUM_SUCCESS;
1469
1470 WARN_ON_ONCE(len > TX_LEN_MAX);
1471
1472 opts1 = len | TX_FS | TX_LS;
1473
1474 if (mss) {
hayeswang6128d1bb2014-03-07 11:04:40 +08001475 if (transport_offset > GTTCPHO_MAX) {
1476 netif_warn(tp, tx_err, tp->netdev,
1477 "Invalid transport offset 0x%x for TSO\n",
1478 transport_offset);
1479 ret = TX_CSUM_TSO;
1480 goto unavailable;
1481 }
1482
hayeswang6e74d172015-02-06 11:30:50 +08001483 switch (vlan_get_protocol(skb)) {
hayeswang60c89072014-03-07 11:04:39 +08001484 case htons(ETH_P_IP):
1485 opts1 |= GTSENDV4;
1486 break;
1487
hayeswang6128d1bb2014-03-07 11:04:40 +08001488 case htons(ETH_P_IPV6):
hayeswangfcb308d2014-03-11 10:20:32 +08001489 if (msdn_giant_send_check(skb)) {
1490 ret = TX_CSUM_TSO;
1491 goto unavailable;
1492 }
hayeswang6128d1bb2014-03-07 11:04:40 +08001493 opts1 |= GTSENDV6;
hayeswang6128d1bb2014-03-07 11:04:40 +08001494 break;
1495
hayeswang60c89072014-03-07 11:04:39 +08001496 default:
1497 WARN_ON_ONCE(1);
1498 break;
1499 }
1500
1501 opts1 |= transport_offset << GTTCPHO_SHIFT;
1502 opts2 |= min(mss, MSS_MAX) << MSS_SHIFT;
1503 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
hayeswang5bd23882013-08-14 20:54:39 +08001504 u8 ip_protocol;
hayeswang5bd23882013-08-14 20:54:39 +08001505
hayeswang6128d1bb2014-03-07 11:04:40 +08001506 if (transport_offset > TCPHO_MAX) {
1507 netif_warn(tp, tx_err, tp->netdev,
1508 "Invalid transport offset 0x%x\n",
1509 transport_offset);
1510 ret = TX_CSUM_NONE;
1511 goto unavailable;
1512 }
1513
hayeswang6e74d172015-02-06 11:30:50 +08001514 switch (vlan_get_protocol(skb)) {
hayeswang5bd23882013-08-14 20:54:39 +08001515 case htons(ETH_P_IP):
1516 opts2 |= IPV4_CS;
1517 ip_protocol = ip_hdr(skb)->protocol;
1518 break;
1519
1520 case htons(ETH_P_IPV6):
1521 opts2 |= IPV6_CS;
1522 ip_protocol = ipv6_hdr(skb)->nexthdr;
1523 break;
1524
1525 default:
1526 ip_protocol = IPPROTO_RAW;
1527 break;
1528 }
1529
hayeswang60c89072014-03-07 11:04:39 +08001530 if (ip_protocol == IPPROTO_TCP)
hayeswang5bd23882013-08-14 20:54:39 +08001531 opts2 |= TCP_CS;
hayeswang60c89072014-03-07 11:04:39 +08001532 else if (ip_protocol == IPPROTO_UDP)
hayeswang5bd23882013-08-14 20:54:39 +08001533 opts2 |= UDP_CS;
hayeswang60c89072014-03-07 11:04:39 +08001534 else
hayeswang5bd23882013-08-14 20:54:39 +08001535 WARN_ON_ONCE(1);
hayeswang5bd23882013-08-14 20:54:39 +08001536
hayeswang60c89072014-03-07 11:04:39 +08001537 opts2 |= transport_offset << TCPHO_SHIFT;
hayeswang5bd23882013-08-14 20:54:39 +08001538 }
hayeswang60c89072014-03-07 11:04:39 +08001539
1540 desc->opts2 = cpu_to_le32(opts2);
1541 desc->opts1 = cpu_to_le32(opts1);
1542
hayeswang6128d1bb2014-03-07 11:04:40 +08001543unavailable:
hayeswang60c89072014-03-07 11:04:39 +08001544 return ret;
hayeswang5bd23882013-08-14 20:54:39 +08001545}
1546
hayeswangb1379d92013-08-16 16:09:37 +08001547static int r8152_tx_agg_fill(struct r8152 *tp, struct tx_agg *agg)
1548{
hayeswangd84130a2014-02-18 21:49:02 +08001549 struct sk_buff_head skb_head, *tx_queue = &tp->tx_queue;
hayeswang9a4be1b2014-02-18 21:49:07 +08001550 int remain, ret;
hayeswangb1379d92013-08-16 16:09:37 +08001551 u8 *tx_data;
1552
hayeswangd84130a2014-02-18 21:49:02 +08001553 __skb_queue_head_init(&skb_head);
hayeswang0c3121f2014-03-07 11:04:36 +08001554 spin_lock(&tx_queue->lock);
hayeswangd84130a2014-02-18 21:49:02 +08001555 skb_queue_splice_init(tx_queue, &skb_head);
hayeswang0c3121f2014-03-07 11:04:36 +08001556 spin_unlock(&tx_queue->lock);
hayeswangd84130a2014-02-18 21:49:02 +08001557
hayeswangb1379d92013-08-16 16:09:37 +08001558 tx_data = agg->head;
hayeswangb209af92014-08-25 15:53:00 +08001559 agg->skb_num = 0;
1560 agg->skb_len = 0;
hayeswang52aec122014-09-02 10:27:52 +08001561 remain = agg_buf_sz;
hayeswangb1379d92013-08-16 16:09:37 +08001562
hayeswang7937f9e2013-11-20 17:30:54 +08001563 while (remain >= ETH_ZLEN + sizeof(struct tx_desc)) {
hayeswangb1379d92013-08-16 16:09:37 +08001564 struct tx_desc *tx_desc;
1565 struct sk_buff *skb;
1566 unsigned int len;
hayeswang60c89072014-03-07 11:04:39 +08001567 u32 offset;
hayeswangb1379d92013-08-16 16:09:37 +08001568
hayeswangd84130a2014-02-18 21:49:02 +08001569 skb = __skb_dequeue(&skb_head);
hayeswangb1379d92013-08-16 16:09:37 +08001570 if (!skb)
1571 break;
1572
hayeswang60c89072014-03-07 11:04:39 +08001573 len = skb->len + sizeof(*tx_desc);
1574
1575 if (len > remain) {
hayeswangd84130a2014-02-18 21:49:02 +08001576 __skb_queue_head(&skb_head, skb);
hayeswangb1379d92013-08-16 16:09:37 +08001577 break;
1578 }
1579
hayeswang7937f9e2013-11-20 17:30:54 +08001580 tx_data = tx_agg_align(tx_data);
hayeswangb1379d92013-08-16 16:09:37 +08001581 tx_desc = (struct tx_desc *)tx_data;
hayeswang60c89072014-03-07 11:04:39 +08001582
1583 offset = (u32)skb_transport_offset(skb);
1584
hayeswang6128d1bb2014-03-07 11:04:40 +08001585 if (r8152_tx_csum(tp, tx_desc, skb, skb->len, offset)) {
1586 r8152_csum_workaround(tp, skb, &skb_head);
1587 continue;
1588 }
hayeswang60c89072014-03-07 11:04:39 +08001589
hayeswangc5554292014-09-12 10:43:11 +08001590 rtl_tx_vlan_tag(tx_desc, skb);
1591
hayeswangb1379d92013-08-16 16:09:37 +08001592 tx_data += sizeof(*tx_desc);
1593
hayeswang60c89072014-03-07 11:04:39 +08001594 len = skb->len;
1595 if (skb_copy_bits(skb, 0, tx_data, len) < 0) {
1596 struct net_device_stats *stats = &tp->netdev->stats;
1597
1598 stats->tx_dropped++;
1599 dev_kfree_skb_any(skb);
1600 tx_data -= sizeof(*tx_desc);
1601 continue;
1602 }
hayeswangb1379d92013-08-16 16:09:37 +08001603
hayeswang7937f9e2013-11-20 17:30:54 +08001604 tx_data += len;
hayeswang60c89072014-03-07 11:04:39 +08001605 agg->skb_len += len;
1606 agg->skb_num++;
1607
1608 dev_kfree_skb_any(skb);
1609
hayeswang52aec122014-09-02 10:27:52 +08001610 remain = agg_buf_sz - (int)(tx_agg_align(tx_data) - agg->head);
hayeswangb1379d92013-08-16 16:09:37 +08001611 }
1612
hayeswangd84130a2014-02-18 21:49:02 +08001613 if (!skb_queue_empty(&skb_head)) {
hayeswang0c3121f2014-03-07 11:04:36 +08001614 spin_lock(&tx_queue->lock);
hayeswangd84130a2014-02-18 21:49:02 +08001615 skb_queue_splice(&skb_head, tx_queue);
hayeswang0c3121f2014-03-07 11:04:36 +08001616 spin_unlock(&tx_queue->lock);
hayeswangd84130a2014-02-18 21:49:02 +08001617 }
1618
hayeswang0c3121f2014-03-07 11:04:36 +08001619 netif_tx_lock(tp->netdev);
hayeswangdd1b1192013-11-20 17:30:56 +08001620
1621 if (netif_queue_stopped(tp->netdev) &&
1622 skb_queue_len(&tp->tx_queue) < tp->tx_qlen)
1623 netif_wake_queue(tp->netdev);
1624
hayeswang0c3121f2014-03-07 11:04:36 +08001625 netif_tx_unlock(tp->netdev);
hayeswang9a4be1b2014-02-18 21:49:07 +08001626
hayeswang0c3121f2014-03-07 11:04:36 +08001627 ret = usb_autopm_get_interface_async(tp->intf);
hayeswang9a4be1b2014-02-18 21:49:07 +08001628 if (ret < 0)
1629 goto out_tx_fill;
hayeswangdd1b1192013-11-20 17:30:56 +08001630
hayeswangb1379d92013-08-16 16:09:37 +08001631 usb_fill_bulk_urb(agg->urb, tp->udev, usb_sndbulkpipe(tp->udev, 2),
1632 agg->head, (int)(tx_data - (u8 *)agg->head),
1633 (usb_complete_t)write_bulk_callback, agg);
1634
hayeswang0c3121f2014-03-07 11:04:36 +08001635 ret = usb_submit_urb(agg->urb, GFP_ATOMIC);
hayeswang9a4be1b2014-02-18 21:49:07 +08001636 if (ret < 0)
hayeswang0c3121f2014-03-07 11:04:36 +08001637 usb_autopm_put_interface_async(tp->intf);
hayeswang9a4be1b2014-02-18 21:49:07 +08001638
1639out_tx_fill:
1640 return ret;
hayeswangb1379d92013-08-16 16:09:37 +08001641}
1642
hayeswang565cab02014-03-07 11:04:38 +08001643static u8 r8152_rx_csum(struct r8152 *tp, struct rx_desc *rx_desc)
1644{
1645 u8 checksum = CHECKSUM_NONE;
1646 u32 opts2, opts3;
1647
1648 if (tp->version == RTL_VER_01)
1649 goto return_result;
1650
1651 opts2 = le32_to_cpu(rx_desc->opts2);
1652 opts3 = le32_to_cpu(rx_desc->opts3);
1653
1654 if (opts2 & RD_IPV4_CS) {
1655 if (opts3 & IPF)
1656 checksum = CHECKSUM_NONE;
1657 else if ((opts2 & RD_UDP_CS) && (opts3 & UDPF))
1658 checksum = CHECKSUM_NONE;
1659 else if ((opts2 & RD_TCP_CS) && (opts3 & TCPF))
1660 checksum = CHECKSUM_NONE;
1661 else
1662 checksum = CHECKSUM_UNNECESSARY;
hayeswang6128d1bb2014-03-07 11:04:40 +08001663 } else if (RD_IPV6_CS) {
1664 if ((opts2 & RD_UDP_CS) && !(opts3 & UDPF))
1665 checksum = CHECKSUM_UNNECESSARY;
1666 else if ((opts2 & RD_TCP_CS) && !(opts3 & TCPF))
1667 checksum = CHECKSUM_UNNECESSARY;
hayeswang565cab02014-03-07 11:04:38 +08001668 }
1669
1670return_result:
1671 return checksum;
1672}
1673
hayeswangd823ab62015-01-12 12:06:23 +08001674static int rx_bottom(struct r8152 *tp, int budget)
hayeswangebc2ec482013-08-14 20:54:38 +08001675{
hayeswanga5a4f462013-08-16 16:09:34 +08001676 unsigned long flags;
hayeswangd84130a2014-02-18 21:49:02 +08001677 struct list_head *cursor, *next, rx_queue;
hayeswange1a2ca92015-02-06 11:30:45 +08001678 int ret = 0, work_done = 0;
hayeswangd823ab62015-01-12 12:06:23 +08001679
1680 if (!skb_queue_empty(&tp->rx_queue)) {
1681 while (work_done < budget) {
1682 struct sk_buff *skb = __skb_dequeue(&tp->rx_queue);
1683 struct net_device *netdev = tp->netdev;
1684 struct net_device_stats *stats = &netdev->stats;
1685 unsigned int pkt_len;
1686
1687 if (!skb)
1688 break;
1689
1690 pkt_len = skb->len;
1691 napi_gro_receive(&tp->napi, skb);
1692 work_done++;
1693 stats->rx_packets++;
1694 stats->rx_bytes += pkt_len;
1695 }
1696 }
hayeswangebc2ec482013-08-14 20:54:38 +08001697
hayeswangd84130a2014-02-18 21:49:02 +08001698 if (list_empty(&tp->rx_done))
hayeswangd823ab62015-01-12 12:06:23 +08001699 goto out1;
hayeswangd84130a2014-02-18 21:49:02 +08001700
1701 INIT_LIST_HEAD(&rx_queue);
hayeswanga5a4f462013-08-16 16:09:34 +08001702 spin_lock_irqsave(&tp->rx_lock, flags);
hayeswangd84130a2014-02-18 21:49:02 +08001703 list_splice_init(&tp->rx_done, &rx_queue);
1704 spin_unlock_irqrestore(&tp->rx_lock, flags);
1705
1706 list_for_each_safe(cursor, next, &rx_queue) {
hayeswang43a44782013-08-16 16:09:36 +08001707 struct rx_desc *rx_desc;
1708 struct rx_agg *agg;
hayeswang43a44782013-08-16 16:09:36 +08001709 int len_used = 0;
1710 struct urb *urb;
1711 u8 *rx_data;
hayeswang43a44782013-08-16 16:09:36 +08001712
hayeswangebc2ec482013-08-14 20:54:38 +08001713 list_del_init(cursor);
hayeswangebc2ec482013-08-14 20:54:38 +08001714
1715 agg = list_entry(cursor, struct rx_agg, list);
1716 urb = agg->urb;
hayeswang0de98f62013-08-16 16:09:35 +08001717 if (urb->actual_length < ETH_ZLEN)
1718 goto submit;
hayeswangebc2ec482013-08-14 20:54:38 +08001719
hayeswangebc2ec482013-08-14 20:54:38 +08001720 rx_desc = agg->head;
1721 rx_data = agg->head;
hayeswang7937f9e2013-11-20 17:30:54 +08001722 len_used += sizeof(struct rx_desc);
hayeswangebc2ec482013-08-14 20:54:38 +08001723
hayeswang7937f9e2013-11-20 17:30:54 +08001724 while (urb->actual_length > len_used) {
hayeswang43a44782013-08-16 16:09:36 +08001725 struct net_device *netdev = tp->netdev;
hayeswang05e0f1a2014-03-06 15:07:18 +08001726 struct net_device_stats *stats = &netdev->stats;
hayeswang7937f9e2013-11-20 17:30:54 +08001727 unsigned int pkt_len;
hayeswang43a44782013-08-16 16:09:36 +08001728 struct sk_buff *skb;
1729
hayeswang7937f9e2013-11-20 17:30:54 +08001730 pkt_len = le32_to_cpu(rx_desc->opts1) & RX_LEN_MASK;
hayeswangebc2ec482013-08-14 20:54:38 +08001731 if (pkt_len < ETH_ZLEN)
1732 break;
1733
hayeswang7937f9e2013-11-20 17:30:54 +08001734 len_used += pkt_len;
1735 if (urb->actual_length < len_used)
1736 break;
1737
hayeswang8e1f51b2014-01-02 11:22:41 +08001738 pkt_len -= CRC_SIZE;
hayeswangebc2ec482013-08-14 20:54:38 +08001739 rx_data += sizeof(struct rx_desc);
1740
1741 skb = netdev_alloc_skb_ip_align(netdev, pkt_len);
1742 if (!skb) {
1743 stats->rx_dropped++;
hayeswang5e2f7482014-03-07 11:04:37 +08001744 goto find_next_rx;
hayeswangebc2ec482013-08-14 20:54:38 +08001745 }
hayeswang565cab02014-03-07 11:04:38 +08001746
1747 skb->ip_summed = r8152_rx_csum(tp, rx_desc);
hayeswangebc2ec482013-08-14 20:54:38 +08001748 memcpy(skb->data, rx_data, pkt_len);
1749 skb_put(skb, pkt_len);
1750 skb->protocol = eth_type_trans(skb, netdev);
hayeswangc5554292014-09-12 10:43:11 +08001751 rtl_rx_vlan_tag(rx_desc, skb);
hayeswangd823ab62015-01-12 12:06:23 +08001752 if (work_done < budget) {
1753 napi_gro_receive(&tp->napi, skb);
1754 work_done++;
1755 stats->rx_packets++;
1756 stats->rx_bytes += pkt_len;
1757 } else {
1758 __skb_queue_tail(&tp->rx_queue, skb);
1759 }
hayeswangebc2ec482013-08-14 20:54:38 +08001760
hayeswang5e2f7482014-03-07 11:04:37 +08001761find_next_rx:
hayeswang8e1f51b2014-01-02 11:22:41 +08001762 rx_data = rx_agg_align(rx_data + pkt_len + CRC_SIZE);
hayeswangebc2ec482013-08-14 20:54:38 +08001763 rx_desc = (struct rx_desc *)rx_data;
hayeswangebc2ec482013-08-14 20:54:38 +08001764 len_used = (int)(rx_data - (u8 *)agg->head);
hayeswang7937f9e2013-11-20 17:30:54 +08001765 len_used += sizeof(struct rx_desc);
hayeswangebc2ec482013-08-14 20:54:38 +08001766 }
1767
hayeswang0de98f62013-08-16 16:09:35 +08001768submit:
hayeswange1a2ca92015-02-06 11:30:45 +08001769 if (!ret) {
1770 ret = r8152_submit_rx(tp, agg, GFP_ATOMIC);
1771 } else {
1772 urb->actual_length = 0;
1773 list_add_tail(&agg->list, next);
1774 }
1775 }
1776
1777 if (!list_empty(&rx_queue)) {
1778 spin_lock_irqsave(&tp->rx_lock, flags);
1779 list_splice_tail(&rx_queue, &tp->rx_done);
1780 spin_unlock_irqrestore(&tp->rx_lock, flags);
hayeswangebc2ec482013-08-14 20:54:38 +08001781 }
hayeswangd823ab62015-01-12 12:06:23 +08001782
1783out1:
1784 return work_done;
hayeswangebc2ec482013-08-14 20:54:38 +08001785}
1786
1787static void tx_bottom(struct r8152 *tp)
1788{
hayeswangebc2ec482013-08-14 20:54:38 +08001789 int res;
1790
hayeswangb1379d92013-08-16 16:09:37 +08001791 do {
1792 struct tx_agg *agg;
hayeswangebc2ec482013-08-14 20:54:38 +08001793
hayeswangb1379d92013-08-16 16:09:37 +08001794 if (skb_queue_empty(&tp->tx_queue))
hayeswangebc2ec482013-08-14 20:54:38 +08001795 break;
1796
hayeswangb1379d92013-08-16 16:09:37 +08001797 agg = r8152_get_tx_agg(tp);
1798 if (!agg)
hayeswangebc2ec482013-08-14 20:54:38 +08001799 break;
hayeswangb1379d92013-08-16 16:09:37 +08001800
1801 res = r8152_tx_agg_fill(tp, agg);
1802 if (res) {
hayeswang05e0f1a2014-03-06 15:07:18 +08001803 struct net_device *netdev = tp->netdev;
hayeswangb1379d92013-08-16 16:09:37 +08001804
1805 if (res == -ENODEV) {
hayeswang67610492014-10-30 11:46:40 +08001806 set_bit(RTL8152_UNPLUG, &tp->flags);
hayeswangb1379d92013-08-16 16:09:37 +08001807 netif_device_detach(netdev);
1808 } else {
hayeswang05e0f1a2014-03-06 15:07:18 +08001809 struct net_device_stats *stats = &netdev->stats;
1810 unsigned long flags;
1811
hayeswangb1379d92013-08-16 16:09:37 +08001812 netif_warn(tp, tx_err, netdev,
1813 "failed tx_urb %d\n", res);
1814 stats->tx_dropped += agg->skb_num;
hayeswangdb8515e2014-03-06 15:07:16 +08001815
hayeswangb1379d92013-08-16 16:09:37 +08001816 spin_lock_irqsave(&tp->tx_lock, flags);
1817 list_add_tail(&agg->list, &tp->tx_free);
1818 spin_unlock_irqrestore(&tp->tx_lock, flags);
1819 }
hayeswangebc2ec482013-08-14 20:54:38 +08001820 }
hayeswangb1379d92013-08-16 16:09:37 +08001821 } while (res == 0);
hayeswangebc2ec482013-08-14 20:54:38 +08001822}
1823
hayeswangd823ab62015-01-12 12:06:23 +08001824static void bottom_half(struct r8152 *tp)
hayeswangebc2ec482013-08-14 20:54:38 +08001825{
hayeswangebc2ec482013-08-14 20:54:38 +08001826 if (test_bit(RTL8152_UNPLUG, &tp->flags))
1827 return;
1828
1829 if (!test_bit(WORK_ENABLE, &tp->flags))
1830 return;
1831
hayeswang7559fb2f2013-08-16 16:09:38 +08001832 /* When link down, the driver would cancel all bulks. */
1833 /* This avoid the re-submitting bulk */
hayeswangebc2ec482013-08-14 20:54:38 +08001834 if (!netif_carrier_ok(tp->netdev))
1835 return;
1836
hayeswangd823ab62015-01-12 12:06:23 +08001837 clear_bit(SCHEDULE_NAPI, &tp->flags);
hayeswang9451a112014-11-12 10:05:04 +08001838
hayeswang0c3121f2014-03-07 11:04:36 +08001839 tx_bottom(tp);
hayeswangebc2ec482013-08-14 20:54:38 +08001840}
1841
hayeswangd823ab62015-01-12 12:06:23 +08001842static int r8152_poll(struct napi_struct *napi, int budget)
1843{
1844 struct r8152 *tp = container_of(napi, struct r8152, napi);
1845 int work_done;
1846
1847 work_done = rx_bottom(tp, budget);
1848 bottom_half(tp);
1849
1850 if (work_done < budget) {
1851 napi_complete(napi);
1852 if (!list_empty(&tp->rx_done))
1853 napi_schedule(napi);
1854 }
1855
1856 return work_done;
1857}
1858
hayeswangebc2ec482013-08-14 20:54:38 +08001859static
1860int r8152_submit_rx(struct r8152 *tp, struct rx_agg *agg, gfp_t mem_flags)
1861{
hayeswanga0fccd42014-11-20 10:29:05 +08001862 int ret;
1863
hayeswangef827a52015-01-09 10:26:36 +08001864 /* The rx would be stopped, so skip submitting */
1865 if (test_bit(RTL8152_UNPLUG, &tp->flags) ||
1866 !test_bit(WORK_ENABLE, &tp->flags) || !netif_carrier_ok(tp->netdev))
1867 return 0;
1868
hayeswangebc2ec482013-08-14 20:54:38 +08001869 usb_fill_bulk_urb(agg->urb, tp->udev, usb_rcvbulkpipe(tp->udev, 1),
hayeswang52aec122014-09-02 10:27:52 +08001870 agg->head, agg_buf_sz,
hayeswangb209af92014-08-25 15:53:00 +08001871 (usb_complete_t)read_bulk_callback, agg);
hayeswangebc2ec482013-08-14 20:54:38 +08001872
hayeswanga0fccd42014-11-20 10:29:05 +08001873 ret = usb_submit_urb(agg->urb, mem_flags);
1874 if (ret == -ENODEV) {
1875 set_bit(RTL8152_UNPLUG, &tp->flags);
1876 netif_device_detach(tp->netdev);
1877 } else if (ret) {
1878 struct urb *urb = agg->urb;
1879 unsigned long flags;
1880
1881 urb->actual_length = 0;
1882 spin_lock_irqsave(&tp->rx_lock, flags);
1883 list_add_tail(&agg->list, &tp->rx_done);
1884 spin_unlock_irqrestore(&tp->rx_lock, flags);
hayeswangd823ab62015-01-12 12:06:23 +08001885
1886 netif_err(tp, rx_err, tp->netdev,
1887 "Couldn't submit rx[%p], ret = %d\n", agg, ret);
1888
1889 napi_schedule(&tp->napi);
hayeswanga0fccd42014-11-20 10:29:05 +08001890 }
1891
1892 return ret;
hayeswangac718b62013-05-02 16:01:25 +00001893}
1894
hayeswang00a5e362014-02-18 21:48:59 +08001895static void rtl_drop_queued_tx(struct r8152 *tp)
1896{
1897 struct net_device_stats *stats = &tp->netdev->stats;
hayeswangd84130a2014-02-18 21:49:02 +08001898 struct sk_buff_head skb_head, *tx_queue = &tp->tx_queue;
hayeswang00a5e362014-02-18 21:48:59 +08001899 struct sk_buff *skb;
1900
hayeswangd84130a2014-02-18 21:49:02 +08001901 if (skb_queue_empty(tx_queue))
1902 return;
1903
1904 __skb_queue_head_init(&skb_head);
hayeswang2685d412014-03-07 11:04:34 +08001905 spin_lock_bh(&tx_queue->lock);
hayeswangd84130a2014-02-18 21:49:02 +08001906 skb_queue_splice_init(tx_queue, &skb_head);
hayeswang2685d412014-03-07 11:04:34 +08001907 spin_unlock_bh(&tx_queue->lock);
hayeswangd84130a2014-02-18 21:49:02 +08001908
1909 while ((skb = __skb_dequeue(&skb_head))) {
hayeswang00a5e362014-02-18 21:48:59 +08001910 dev_kfree_skb(skb);
1911 stats->tx_dropped++;
1912 }
1913}
1914
hayeswangac718b62013-05-02 16:01:25 +00001915static void rtl8152_tx_timeout(struct net_device *netdev)
1916{
1917 struct r8152 *tp = netdev_priv(netdev);
hayeswangebc2ec482013-08-14 20:54:38 +08001918
Hayes Wang4a8deae2014-01-07 11:18:22 +08001919 netif_warn(tp, tx_err, netdev, "Tx timeout\n");
hayeswang37608f32015-07-29 20:39:09 +08001920
1921 usb_queue_reset_device(tp->intf);
hayeswangac718b62013-05-02 16:01:25 +00001922}
1923
1924static void rtl8152_set_rx_mode(struct net_device *netdev)
1925{
1926 struct r8152 *tp = netdev_priv(netdev);
1927
hayeswang51d979f2015-02-06 11:30:47 +08001928 if (netif_carrier_ok(netdev)) {
hayeswangac718b62013-05-02 16:01:25 +00001929 set_bit(RTL8152_SET_RX_MODE, &tp->flags);
hayeswang40a82912013-08-14 20:54:40 +08001930 schedule_delayed_work(&tp->schedule, 0);
1931 }
hayeswangac718b62013-05-02 16:01:25 +00001932}
1933
1934static void _rtl8152_set_rx_mode(struct net_device *netdev)
1935{
1936 struct r8152 *tp = netdev_priv(netdev);
hayeswang31787f52013-07-31 17:21:25 +08001937 u32 mc_filter[2]; /* Multicast hash filter */
1938 __le32 tmp[2];
hayeswangac718b62013-05-02 16:01:25 +00001939 u32 ocp_data;
1940
hayeswangac718b62013-05-02 16:01:25 +00001941 netif_stop_queue(netdev);
1942 ocp_data = ocp_read_dword(tp, MCU_TYPE_PLA, PLA_RCR);
1943 ocp_data &= ~RCR_ACPT_ALL;
1944 ocp_data |= RCR_AB | RCR_APM;
1945
1946 if (netdev->flags & IFF_PROMISC) {
1947 /* Unconditionally log net taps. */
1948 netif_notice(tp, link, netdev, "Promiscuous mode enabled\n");
1949 ocp_data |= RCR_AM | RCR_AAP;
hayeswangb209af92014-08-25 15:53:00 +08001950 mc_filter[1] = 0xffffffff;
1951 mc_filter[0] = 0xffffffff;
hayeswangac718b62013-05-02 16:01:25 +00001952 } else if ((netdev_mc_count(netdev) > multicast_filter_limit) ||
1953 (netdev->flags & IFF_ALLMULTI)) {
1954 /* Too many to filter perfectly -- accept all multicasts. */
1955 ocp_data |= RCR_AM;
hayeswangb209af92014-08-25 15:53:00 +08001956 mc_filter[1] = 0xffffffff;
1957 mc_filter[0] = 0xffffffff;
hayeswangac718b62013-05-02 16:01:25 +00001958 } else {
1959 struct netdev_hw_addr *ha;
1960
hayeswangb209af92014-08-25 15:53:00 +08001961 mc_filter[1] = 0;
1962 mc_filter[0] = 0;
hayeswangac718b62013-05-02 16:01:25 +00001963 netdev_for_each_mc_addr(ha, netdev) {
1964 int bit_nr = ether_crc(ETH_ALEN, ha->addr) >> 26;
hayeswangb209af92014-08-25 15:53:00 +08001965
hayeswangac718b62013-05-02 16:01:25 +00001966 mc_filter[bit_nr >> 5] |= 1 << (bit_nr & 31);
1967 ocp_data |= RCR_AM;
1968 }
1969 }
1970
hayeswang31787f52013-07-31 17:21:25 +08001971 tmp[0] = __cpu_to_le32(swab32(mc_filter[1]));
1972 tmp[1] = __cpu_to_le32(swab32(mc_filter[0]));
hayeswangac718b62013-05-02 16:01:25 +00001973
hayeswang31787f52013-07-31 17:21:25 +08001974 pla_ocp_write(tp, PLA_MAR, BYTE_EN_DWORD, sizeof(tmp), tmp);
hayeswangac718b62013-05-02 16:01:25 +00001975 ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RCR, ocp_data);
1976 netif_wake_queue(netdev);
hayeswangac718b62013-05-02 16:01:25 +00001977}
1978
hayeswanga5e31252015-01-06 17:41:58 +08001979static netdev_features_t
1980rtl8152_features_check(struct sk_buff *skb, struct net_device *dev,
1981 netdev_features_t features)
1982{
1983 u32 mss = skb_shinfo(skb)->gso_size;
1984 int max_offset = mss ? GTTCPHO_MAX : TCPHO_MAX;
1985 int offset = skb_transport_offset(skb);
1986
1987 if ((mss || skb->ip_summed == CHECKSUM_PARTIAL) && offset > max_offset)
Tom Herberta1882222015-12-14 11:19:43 -08001988 features &= ~(NETIF_F_CSUM_MASK | NETIF_F_GSO_MASK);
hayeswanga5e31252015-01-06 17:41:58 +08001989 else if ((skb->len + sizeof(struct tx_desc)) > agg_buf_sz)
1990 features &= ~NETIF_F_GSO_MASK;
1991
1992 return features;
1993}
1994
hayeswangac718b62013-05-02 16:01:25 +00001995static netdev_tx_t rtl8152_start_xmit(struct sk_buff *skb,
hayeswangb209af92014-08-25 15:53:00 +08001996 struct net_device *netdev)
hayeswangac718b62013-05-02 16:01:25 +00001997{
1998 struct r8152 *tp = netdev_priv(netdev);
hayeswangac718b62013-05-02 16:01:25 +00001999
hayeswangac718b62013-05-02 16:01:25 +00002000 skb_tx_timestamp(skb);
hayeswangebc2ec482013-08-14 20:54:38 +08002001
hayeswang61598782013-11-20 17:30:55 +08002002 skb_queue_tail(&tp->tx_queue, skb);
hayeswangebc2ec482013-08-14 20:54:38 +08002003
hayeswang0c3121f2014-03-07 11:04:36 +08002004 if (!list_empty(&tp->tx_free)) {
2005 if (test_bit(SELECTIVE_SUSPEND, &tp->flags)) {
hayeswangd823ab62015-01-12 12:06:23 +08002006 set_bit(SCHEDULE_NAPI, &tp->flags);
hayeswang0c3121f2014-03-07 11:04:36 +08002007 schedule_delayed_work(&tp->schedule, 0);
2008 } else {
2009 usb_mark_last_busy(tp->udev);
hayeswangd823ab62015-01-12 12:06:23 +08002010 napi_schedule(&tp->napi);
hayeswang0c3121f2014-03-07 11:04:36 +08002011 }
hayeswangb209af92014-08-25 15:53:00 +08002012 } else if (skb_queue_len(&tp->tx_queue) > tp->tx_qlen) {
hayeswangdd1b1192013-11-20 17:30:56 +08002013 netif_stop_queue(netdev);
hayeswangb209af92014-08-25 15:53:00 +08002014 }
hayeswangdd1b1192013-11-20 17:30:56 +08002015
hayeswangac718b62013-05-02 16:01:25 +00002016 return NETDEV_TX_OK;
2017}
2018
2019static void r8152b_reset_packet_filter(struct r8152 *tp)
2020{
2021 u32 ocp_data;
2022
2023 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_FMC);
2024 ocp_data &= ~FMC_FCR_MCU_EN;
2025 ocp_write_word(tp, MCU_TYPE_PLA, PLA_FMC, ocp_data);
2026 ocp_data |= FMC_FCR_MCU_EN;
2027 ocp_write_word(tp, MCU_TYPE_PLA, PLA_FMC, ocp_data);
2028}
2029
2030static void rtl8152_nic_reset(struct r8152 *tp)
2031{
2032 int i;
2033
2034 ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CR, CR_RST);
2035
2036 for (i = 0; i < 1000; i++) {
2037 if (!(ocp_read_byte(tp, MCU_TYPE_PLA, PLA_CR) & CR_RST))
2038 break;
hayeswangb209af92014-08-25 15:53:00 +08002039 usleep_range(100, 400);
hayeswangac718b62013-05-02 16:01:25 +00002040 }
2041}
2042
hayeswangdd1b1192013-11-20 17:30:56 +08002043static void set_tx_qlen(struct r8152 *tp)
2044{
2045 struct net_device *netdev = tp->netdev;
2046
hayeswang52aec122014-09-02 10:27:52 +08002047 tp->tx_qlen = agg_buf_sz / (netdev->mtu + VLAN_ETH_HLEN + VLAN_HLEN +
2048 sizeof(struct tx_desc));
hayeswangdd1b1192013-11-20 17:30:56 +08002049}
2050
hayeswangac718b62013-05-02 16:01:25 +00002051static inline u8 rtl8152_get_speed(struct r8152 *tp)
2052{
2053 return ocp_read_byte(tp, MCU_TYPE_PLA, PLA_PHYSTATUS);
2054}
2055
hayeswang507605a2014-01-02 11:22:43 +08002056static void rtl_set_eee_plus(struct r8152 *tp)
hayeswangac718b62013-05-02 16:01:25 +00002057{
hayeswangebc2ec482013-08-14 20:54:38 +08002058 u32 ocp_data;
hayeswangac718b62013-05-02 16:01:25 +00002059 u8 speed;
2060
2061 speed = rtl8152_get_speed(tp);
hayeswangebc2ec482013-08-14 20:54:38 +08002062 if (speed & _10bps) {
hayeswangac718b62013-05-02 16:01:25 +00002063 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_EEEP_CR);
hayeswangebc2ec482013-08-14 20:54:38 +08002064 ocp_data |= EEEP_CR_EEEP_TX;
hayeswangac718b62013-05-02 16:01:25 +00002065 ocp_write_word(tp, MCU_TYPE_PLA, PLA_EEEP_CR, ocp_data);
2066 } else {
2067 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_EEEP_CR);
hayeswangebc2ec482013-08-14 20:54:38 +08002068 ocp_data &= ~EEEP_CR_EEEP_TX;
hayeswangac718b62013-05-02 16:01:25 +00002069 ocp_write_word(tp, MCU_TYPE_PLA, PLA_EEEP_CR, ocp_data);
2070 }
hayeswang507605a2014-01-02 11:22:43 +08002071}
2072
hayeswang00a5e362014-02-18 21:48:59 +08002073static void rxdy_gated_en(struct r8152 *tp, bool enable)
2074{
2075 u32 ocp_data;
2076
2077 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_MISC_1);
2078 if (enable)
2079 ocp_data |= RXDY_GATED_EN;
2080 else
2081 ocp_data &= ~RXDY_GATED_EN;
2082 ocp_write_word(tp, MCU_TYPE_PLA, PLA_MISC_1, ocp_data);
2083}
2084
hayeswang445f7f42014-09-23 16:31:47 +08002085static int rtl_start_rx(struct r8152 *tp)
2086{
2087 int i, ret = 0;
2088
2089 INIT_LIST_HEAD(&tp->rx_done);
2090 for (i = 0; i < RTL8152_MAX_RX; i++) {
2091 INIT_LIST_HEAD(&tp->rx_info[i].list);
2092 ret = r8152_submit_rx(tp, &tp->rx_info[i], GFP_KERNEL);
2093 if (ret)
2094 break;
2095 }
2096
hayeswang7bcf4f62014-11-20 10:29:06 +08002097 if (ret && ++i < RTL8152_MAX_RX) {
2098 struct list_head rx_queue;
2099 unsigned long flags;
2100
2101 INIT_LIST_HEAD(&rx_queue);
2102
2103 do {
2104 struct rx_agg *agg = &tp->rx_info[i++];
2105 struct urb *urb = agg->urb;
2106
2107 urb->actual_length = 0;
2108 list_add_tail(&agg->list, &rx_queue);
2109 } while (i < RTL8152_MAX_RX);
2110
2111 spin_lock_irqsave(&tp->rx_lock, flags);
2112 list_splice_tail(&rx_queue, &tp->rx_done);
2113 spin_unlock_irqrestore(&tp->rx_lock, flags);
2114 }
2115
hayeswang445f7f42014-09-23 16:31:47 +08002116 return ret;
2117}
2118
2119static int rtl_stop_rx(struct r8152 *tp)
2120{
2121 int i;
2122
2123 for (i = 0; i < RTL8152_MAX_RX; i++)
2124 usb_kill_urb(tp->rx_info[i].urb);
2125
hayeswangd823ab62015-01-12 12:06:23 +08002126 while (!skb_queue_empty(&tp->rx_queue))
2127 dev_kfree_skb(__skb_dequeue(&tp->rx_queue));
2128
hayeswang445f7f42014-09-23 16:31:47 +08002129 return 0;
2130}
2131
hayeswang507605a2014-01-02 11:22:43 +08002132static int rtl_enable(struct r8152 *tp)
2133{
2134 u32 ocp_data;
hayeswangac718b62013-05-02 16:01:25 +00002135
2136 r8152b_reset_packet_filter(tp);
2137
2138 ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_CR);
2139 ocp_data |= CR_RE | CR_TE;
2140 ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CR, ocp_data);
2141
hayeswang00a5e362014-02-18 21:48:59 +08002142 rxdy_gated_en(tp, false);
hayeswangac718b62013-05-02 16:01:25 +00002143
hayeswangaa2e0922015-01-09 10:26:35 +08002144 return 0;
hayeswangac718b62013-05-02 16:01:25 +00002145}
2146
hayeswang507605a2014-01-02 11:22:43 +08002147static int rtl8152_enable(struct r8152 *tp)
2148{
hayeswang68714382014-04-11 17:54:31 +08002149 if (test_bit(RTL8152_UNPLUG, &tp->flags))
2150 return -ENODEV;
2151
hayeswang507605a2014-01-02 11:22:43 +08002152 set_tx_qlen(tp);
2153 rtl_set_eee_plus(tp);
2154
2155 return rtl_enable(tp);
2156}
2157
hayeswang464ec102015-02-12 14:33:46 +08002158static void r8153_set_rx_early_timeout(struct r8152 *tp)
hayeswang43779f82014-01-02 11:25:10 +08002159{
hayeswang464ec102015-02-12 14:33:46 +08002160 u32 ocp_data = tp->coalesce / 8;
hayeswang43779f82014-01-02 11:25:10 +08002161
hayeswang464ec102015-02-12 14:33:46 +08002162 ocp_write_word(tp, MCU_TYPE_USB, USB_RX_EARLY_TIMEOUT, ocp_data);
2163}
2164
2165static void r8153_set_rx_early_size(struct r8152 *tp)
2166{
2167 u32 mtu = tp->netdev->mtu;
2168 u32 ocp_data = (agg_buf_sz - mtu - VLAN_ETH_HLEN - VLAN_HLEN) / 4;
2169
2170 ocp_write_word(tp, MCU_TYPE_USB, USB_RX_EARLY_SIZE, ocp_data);
hayeswang43779f82014-01-02 11:25:10 +08002171}
2172
2173static int rtl8153_enable(struct r8152 *tp)
2174{
hayeswang68714382014-04-11 17:54:31 +08002175 if (test_bit(RTL8152_UNPLUG, &tp->flags))
2176 return -ENODEV;
2177
hayeswangb2143962015-07-24 13:54:23 +08002178 usb_disable_lpm(tp->udev);
hayeswang43779f82014-01-02 11:25:10 +08002179 set_tx_qlen(tp);
2180 rtl_set_eee_plus(tp);
hayeswang464ec102015-02-12 14:33:46 +08002181 r8153_set_rx_early_timeout(tp);
2182 r8153_set_rx_early_size(tp);
hayeswang43779f82014-01-02 11:25:10 +08002183
2184 return rtl_enable(tp);
2185}
2186
hayeswangd70b1132014-09-19 15:17:18 +08002187static void rtl_disable(struct r8152 *tp)
hayeswangac718b62013-05-02 16:01:25 +00002188{
hayeswangebc2ec482013-08-14 20:54:38 +08002189 u32 ocp_data;
2190 int i;
hayeswangac718b62013-05-02 16:01:25 +00002191
hayeswang68714382014-04-11 17:54:31 +08002192 if (test_bit(RTL8152_UNPLUG, &tp->flags)) {
2193 rtl_drop_queued_tx(tp);
2194 return;
2195 }
2196
hayeswangac718b62013-05-02 16:01:25 +00002197 ocp_data = ocp_read_dword(tp, MCU_TYPE_PLA, PLA_RCR);
2198 ocp_data &= ~RCR_ACPT_ALL;
2199 ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RCR, ocp_data);
2200
hayeswang00a5e362014-02-18 21:48:59 +08002201 rtl_drop_queued_tx(tp);
hayeswangebc2ec482013-08-14 20:54:38 +08002202
2203 for (i = 0; i < RTL8152_MAX_TX; i++)
2204 usb_kill_urb(tp->tx_info[i].urb);
hayeswangac718b62013-05-02 16:01:25 +00002205
hayeswang00a5e362014-02-18 21:48:59 +08002206 rxdy_gated_en(tp, true);
hayeswangac718b62013-05-02 16:01:25 +00002207
2208 for (i = 0; i < 1000; i++) {
2209 ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
2210 if ((ocp_data & FIFO_EMPTY) == FIFO_EMPTY)
2211 break;
hayeswang8ddfa072014-09-09 11:40:28 +08002212 usleep_range(1000, 2000);
hayeswangac718b62013-05-02 16:01:25 +00002213 }
2214
2215 for (i = 0; i < 1000; i++) {
2216 if (ocp_read_word(tp, MCU_TYPE_PLA, PLA_TCR0) & TCR0_TX_EMPTY)
2217 break;
hayeswang8ddfa072014-09-09 11:40:28 +08002218 usleep_range(1000, 2000);
hayeswangac718b62013-05-02 16:01:25 +00002219 }
2220
hayeswang445f7f42014-09-23 16:31:47 +08002221 rtl_stop_rx(tp);
hayeswangac718b62013-05-02 16:01:25 +00002222
2223 rtl8152_nic_reset(tp);
2224}
2225
hayeswang00a5e362014-02-18 21:48:59 +08002226static void r8152_power_cut_en(struct r8152 *tp, bool enable)
2227{
2228 u32 ocp_data;
2229
2230 ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_UPS_CTRL);
2231 if (enable)
2232 ocp_data |= POWER_CUT;
2233 else
2234 ocp_data &= ~POWER_CUT;
2235 ocp_write_word(tp, MCU_TYPE_USB, USB_UPS_CTRL, ocp_data);
2236
2237 ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_PM_CTRL_STATUS);
2238 ocp_data &= ~RESUME_INDICATE;
2239 ocp_write_word(tp, MCU_TYPE_USB, USB_PM_CTRL_STATUS, ocp_data);
hayeswang00a5e362014-02-18 21:48:59 +08002240}
2241
hayeswangc5554292014-09-12 10:43:11 +08002242static void rtl_rx_vlan_en(struct r8152 *tp, bool enable)
2243{
2244 u32 ocp_data;
2245
2246 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_CPCR);
2247 if (enable)
2248 ocp_data |= CPCR_RX_VLAN;
2249 else
2250 ocp_data &= ~CPCR_RX_VLAN;
2251 ocp_write_word(tp, MCU_TYPE_PLA, PLA_CPCR, ocp_data);
2252}
2253
2254static int rtl8152_set_features(struct net_device *dev,
2255 netdev_features_t features)
2256{
2257 netdev_features_t changed = features ^ dev->features;
2258 struct r8152 *tp = netdev_priv(dev);
hayeswang405f8a02014-10-09 18:00:24 +08002259 int ret;
2260
2261 ret = usb_autopm_get_interface(tp->intf);
2262 if (ret < 0)
2263 goto out;
hayeswangc5554292014-09-12 10:43:11 +08002264
hayeswangb5403272014-10-09 18:00:26 +08002265 mutex_lock(&tp->control);
2266
hayeswangc5554292014-09-12 10:43:11 +08002267 if (changed & NETIF_F_HW_VLAN_CTAG_RX) {
2268 if (features & NETIF_F_HW_VLAN_CTAG_RX)
2269 rtl_rx_vlan_en(tp, true);
2270 else
2271 rtl_rx_vlan_en(tp, false);
2272 }
2273
hayeswangb5403272014-10-09 18:00:26 +08002274 mutex_unlock(&tp->control);
2275
hayeswang405f8a02014-10-09 18:00:24 +08002276 usb_autopm_put_interface(tp->intf);
2277
2278out:
2279 return ret;
hayeswangc5554292014-09-12 10:43:11 +08002280}
2281
hayeswang21ff2e82014-02-18 21:49:06 +08002282#define WAKE_ANY (WAKE_PHY | WAKE_MAGIC | WAKE_UCAST | WAKE_BCAST | WAKE_MCAST)
2283
2284static u32 __rtl_get_wol(struct r8152 *tp)
2285{
2286 u32 ocp_data;
2287 u32 wolopts = 0;
2288
2289 ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_CONFIG5);
2290 if (!(ocp_data & LAN_WAKE_EN))
2291 return 0;
2292
2293 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_CONFIG34);
2294 if (ocp_data & LINK_ON_WAKE_EN)
2295 wolopts |= WAKE_PHY;
2296
2297 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_CONFIG5);
2298 if (ocp_data & UWF_EN)
2299 wolopts |= WAKE_UCAST;
2300 if (ocp_data & BWF_EN)
2301 wolopts |= WAKE_BCAST;
2302 if (ocp_data & MWF_EN)
2303 wolopts |= WAKE_MCAST;
2304
2305 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_CFG_WOL);
2306 if (ocp_data & MAGIC_EN)
2307 wolopts |= WAKE_MAGIC;
2308
2309 return wolopts;
2310}
2311
2312static void __rtl_set_wol(struct r8152 *tp, u32 wolopts)
2313{
2314 u32 ocp_data;
2315
2316 ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CRWECR, CRWECR_CONFIG);
2317
2318 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_CONFIG34);
2319 ocp_data &= ~LINK_ON_WAKE_EN;
2320 if (wolopts & WAKE_PHY)
2321 ocp_data |= LINK_ON_WAKE_EN;
2322 ocp_write_word(tp, MCU_TYPE_PLA, PLA_CONFIG34, ocp_data);
2323
2324 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_CONFIG5);
2325 ocp_data &= ~(UWF_EN | BWF_EN | MWF_EN | LAN_WAKE_EN);
2326 if (wolopts & WAKE_UCAST)
2327 ocp_data |= UWF_EN;
2328 if (wolopts & WAKE_BCAST)
2329 ocp_data |= BWF_EN;
2330 if (wolopts & WAKE_MCAST)
2331 ocp_data |= MWF_EN;
2332 if (wolopts & WAKE_ANY)
2333 ocp_data |= LAN_WAKE_EN;
2334 ocp_write_word(tp, MCU_TYPE_PLA, PLA_CONFIG5, ocp_data);
2335
2336 ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CRWECR, CRWECR_NORAML);
2337
2338 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_CFG_WOL);
2339 ocp_data &= ~MAGIC_EN;
2340 if (wolopts & WAKE_MAGIC)
2341 ocp_data |= MAGIC_EN;
2342 ocp_write_word(tp, MCU_TYPE_PLA, PLA_CFG_WOL, ocp_data);
2343
2344 if (wolopts & WAKE_ANY)
2345 device_set_wakeup_enable(&tp->udev->dev, true);
2346 else
2347 device_set_wakeup_enable(&tp->udev->dev, false);
2348}
2349
hayeswangb2143962015-07-24 13:54:23 +08002350static void r8153_u1u2en(struct r8152 *tp, bool enable)
2351{
2352 u8 u1u2[8];
2353
2354 if (enable)
2355 memset(u1u2, 0xff, sizeof(u1u2));
2356 else
2357 memset(u1u2, 0x00, sizeof(u1u2));
2358
2359 usb_ocp_write(tp, USB_TOLERANCE, BYTE_EN_SIX_BYTES, sizeof(u1u2), u1u2);
2360}
2361
2362static void r8153_u2p3en(struct r8152 *tp, bool enable)
2363{
2364 u32 ocp_data;
2365
2366 ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_U2P3_CTRL);
2367 if (enable && tp->version != RTL_VER_03 && tp->version != RTL_VER_04)
2368 ocp_data |= U2P3_ENABLE;
2369 else
2370 ocp_data &= ~U2P3_ENABLE;
2371 ocp_write_word(tp, MCU_TYPE_USB, USB_U2P3_CTRL, ocp_data);
2372}
2373
2374static void r8153_power_cut_en(struct r8152 *tp, bool enable)
2375{
2376 u32 ocp_data;
2377
2378 ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_POWER_CUT);
2379 if (enable)
2380 ocp_data |= PWR_EN | PHASE2_EN;
2381 else
2382 ocp_data &= ~(PWR_EN | PHASE2_EN);
2383 ocp_write_word(tp, MCU_TYPE_USB, USB_POWER_CUT, ocp_data);
2384
2385 ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_MISC_0);
2386 ocp_data &= ~PCUT_STATUS;
2387 ocp_write_word(tp, MCU_TYPE_USB, USB_MISC_0, ocp_data);
2388}
2389
hayeswang7daed8d2015-07-24 13:54:24 +08002390static bool rtl_can_wakeup(struct r8152 *tp)
2391{
2392 struct usb_device *udev = tp->udev;
2393
2394 return (udev->actconfig->desc.bmAttributes & USB_CONFIG_ATT_WAKEUP);
2395}
2396
hayeswang9a4be1b2014-02-18 21:49:07 +08002397static void rtl_runtime_suspend_enable(struct r8152 *tp, bool enable)
2398{
2399 if (enable) {
2400 u32 ocp_data;
2401
hayeswangb2143962015-07-24 13:54:23 +08002402 r8153_u1u2en(tp, false);
2403 r8153_u2p3en(tp, false);
2404
hayeswang9a4be1b2014-02-18 21:49:07 +08002405 __rtl_set_wol(tp, WAKE_ANY);
2406
2407 ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CRWECR, CRWECR_CONFIG);
2408
2409 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_CONFIG34);
2410 ocp_data |= LINK_OFF_WAKE_EN;
2411 ocp_write_word(tp, MCU_TYPE_PLA, PLA_CONFIG34, ocp_data);
2412
2413 ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CRWECR, CRWECR_NORAML);
2414 } else {
2415 __rtl_set_wol(tp, tp->saved_wolopts);
hayeswangb2143962015-07-24 13:54:23 +08002416 r8153_u2p3en(tp, true);
2417 r8153_u1u2en(tp, true);
hayeswang9a4be1b2014-02-18 21:49:07 +08002418 }
2419}
2420
hayeswangaa66a5f2014-02-18 21:49:04 +08002421static void rtl_phy_reset(struct r8152 *tp)
2422{
2423 u16 data;
2424 int i;
2425
hayeswangaa66a5f2014-02-18 21:49:04 +08002426 data = r8152_mdio_read(tp, MII_BMCR);
2427
2428 /* don't reset again before the previous one complete */
2429 if (data & BMCR_RESET)
2430 return;
2431
2432 data |= BMCR_RESET;
2433 r8152_mdio_write(tp, MII_BMCR, data);
2434
2435 for (i = 0; i < 50; i++) {
2436 msleep(20);
2437 if ((r8152_mdio_read(tp, MII_BMCR) & BMCR_RESET) == 0)
2438 break;
2439 }
2440}
2441
hayeswang43499682014-02-18 21:48:58 +08002442static void r8153_teredo_off(struct r8152 *tp)
2443{
2444 u32 ocp_data;
2445
2446 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_TEREDO_CFG);
2447 ocp_data &= ~(TEREDO_SEL | TEREDO_RS_EVENT_MASK | OOB_TEREDO_EN);
2448 ocp_write_word(tp, MCU_TYPE_PLA, PLA_TEREDO_CFG, ocp_data);
2449
2450 ocp_write_word(tp, MCU_TYPE_PLA, PLA_WDT6_CTRL, WDT6_SET_MODE);
2451 ocp_write_word(tp, MCU_TYPE_PLA, PLA_REALWOW_TIMER, 0);
2452 ocp_write_dword(tp, MCU_TYPE_PLA, PLA_TEREDO_TIMER, 0);
2453}
2454
hayeswangcda9fb02016-01-07 17:51:12 +08002455static void r8152_aldps_en(struct r8152 *tp, bool enable)
hayeswang43499682014-02-18 21:48:58 +08002456{
hayeswangcda9fb02016-01-07 17:51:12 +08002457 if (enable) {
2458 ocp_reg_write(tp, OCP_ALDPS_CONFIG, ENPWRSAVE | ENPDNPS |
2459 LINKENA | DIS_SDSAVE);
2460 } else {
2461 ocp_reg_write(tp, OCP_ALDPS_CONFIG, ENPDNPS | LINKENA |
2462 DIS_SDSAVE);
2463 msleep(20);
2464 }
hayeswang43499682014-02-18 21:48:58 +08002465}
2466
hayeswangd70b1132014-09-19 15:17:18 +08002467static void rtl8152_disable(struct r8152 *tp)
2468{
hayeswangcda9fb02016-01-07 17:51:12 +08002469 r8152_aldps_en(tp, false);
hayeswangd70b1132014-09-19 15:17:18 +08002470 rtl_disable(tp);
hayeswangcda9fb02016-01-07 17:51:12 +08002471 r8152_aldps_en(tp, true);
hayeswangd70b1132014-09-19 15:17:18 +08002472}
2473
hayeswang43499682014-02-18 21:48:58 +08002474static void r8152b_hw_phy_cfg(struct r8152 *tp)
2475{
hayeswangf0cbe0a2014-02-18 21:49:03 +08002476 u16 data;
2477
2478 data = r8152_mdio_read(tp, MII_BMCR);
2479 if (data & BMCR_PDOWN) {
2480 data &= ~BMCR_PDOWN;
2481 r8152_mdio_write(tp, MII_BMCR, data);
2482 }
2483
hayeswangaa66a5f2014-02-18 21:49:04 +08002484 set_bit(PHY_RESET, &tp->flags);
hayeswang43499682014-02-18 21:48:58 +08002485}
2486
hayeswangac718b62013-05-02 16:01:25 +00002487static void r8152b_exit_oob(struct r8152 *tp)
2488{
hayeswangdb8515e2014-03-06 15:07:16 +08002489 u32 ocp_data;
2490 int i;
hayeswangac718b62013-05-02 16:01:25 +00002491
2492 ocp_data = ocp_read_dword(tp, MCU_TYPE_PLA, PLA_RCR);
2493 ocp_data &= ~RCR_ACPT_ALL;
2494 ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RCR, ocp_data);
2495
hayeswang00a5e362014-02-18 21:48:59 +08002496 rxdy_gated_en(tp, true);
hayeswangda9bd112014-02-18 21:49:08 +08002497 r8153_teredo_off(tp);
hayeswang7e9da482014-02-18 21:49:05 +08002498 r8152b_hw_phy_cfg(tp);
hayeswangac718b62013-05-02 16:01:25 +00002499
2500 ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CRWECR, CRWECR_NORAML);
2501 ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CR, 0x00);
2502
2503 ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
2504 ocp_data &= ~NOW_IS_OOB;
2505 ocp_write_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL, ocp_data);
2506
2507 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7);
2508 ocp_data &= ~MCU_BORW_EN;
2509 ocp_write_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7, ocp_data);
2510
2511 for (i = 0; i < 1000; i++) {
2512 ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
2513 if (ocp_data & LINK_LIST_READY)
2514 break;
hayeswang8ddfa072014-09-09 11:40:28 +08002515 usleep_range(1000, 2000);
hayeswangac718b62013-05-02 16:01:25 +00002516 }
2517
2518 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7);
2519 ocp_data |= RE_INIT_LL;
2520 ocp_write_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7, ocp_data);
2521
2522 for (i = 0; i < 1000; i++) {
2523 ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
2524 if (ocp_data & LINK_LIST_READY)
2525 break;
hayeswang8ddfa072014-09-09 11:40:28 +08002526 usleep_range(1000, 2000);
hayeswangac718b62013-05-02 16:01:25 +00002527 }
2528
2529 rtl8152_nic_reset(tp);
2530
2531 /* rx share fifo credit full threshold */
2532 ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL0, RXFIFO_THR1_NORMAL);
2533
hayeswanga3cc4652014-07-24 16:37:43 +08002534 if (tp->udev->speed == USB_SPEED_FULL ||
2535 tp->udev->speed == USB_SPEED_LOW) {
hayeswangac718b62013-05-02 16:01:25 +00002536 /* rx share fifo credit near full threshold */
2537 ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL1,
2538 RXFIFO_THR2_FULL);
2539 ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL2,
2540 RXFIFO_THR3_FULL);
2541 } else {
2542 /* rx share fifo credit near full threshold */
2543 ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL1,
2544 RXFIFO_THR2_HIGH);
2545 ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL2,
2546 RXFIFO_THR3_HIGH);
2547 }
2548
2549 /* TX share fifo free credit full threshold */
2550 ocp_write_dword(tp, MCU_TYPE_PLA, PLA_TXFIFO_CTRL, TXFIFO_THR_NORMAL);
2551
2552 ocp_write_byte(tp, MCU_TYPE_USB, USB_TX_AGG, TX_AGG_MAX_THRESHOLD);
hayeswang8e1f51b2014-01-02 11:22:41 +08002553 ocp_write_dword(tp, MCU_TYPE_USB, USB_RX_BUF_TH, RX_THR_HIGH);
hayeswangac718b62013-05-02 16:01:25 +00002554 ocp_write_dword(tp, MCU_TYPE_USB, USB_TX_DMA,
2555 TEST_MODE_DISABLE | TX_SIZE_ADJUST1);
2556
hayeswangc5554292014-09-12 10:43:11 +08002557 rtl_rx_vlan_en(tp, tp->netdev->features & NETIF_F_HW_VLAN_CTAG_RX);
hayeswangac718b62013-05-02 16:01:25 +00002558
2559 ocp_write_word(tp, MCU_TYPE_PLA, PLA_RMS, RTL8152_RMS);
2560
2561 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_TCR0);
2562 ocp_data |= TCR0_AUTO_FIFO;
2563 ocp_write_word(tp, MCU_TYPE_PLA, PLA_TCR0, ocp_data);
2564}
2565
2566static void r8152b_enter_oob(struct r8152 *tp)
2567{
hayeswang45f4a192014-01-06 17:08:41 +08002568 u32 ocp_data;
2569 int i;
hayeswangac718b62013-05-02 16:01:25 +00002570
2571 ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
2572 ocp_data &= ~NOW_IS_OOB;
2573 ocp_write_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL, ocp_data);
2574
2575 ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL0, RXFIFO_THR1_OOB);
2576 ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL1, RXFIFO_THR2_OOB);
2577 ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL2, RXFIFO_THR3_OOB);
2578
hayeswangd70b1132014-09-19 15:17:18 +08002579 rtl_disable(tp);
hayeswangac718b62013-05-02 16:01:25 +00002580
2581 for (i = 0; i < 1000; i++) {
2582 ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
2583 if (ocp_data & LINK_LIST_READY)
2584 break;
hayeswang8ddfa072014-09-09 11:40:28 +08002585 usleep_range(1000, 2000);
hayeswangac718b62013-05-02 16:01:25 +00002586 }
2587
2588 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7);
2589 ocp_data |= RE_INIT_LL;
2590 ocp_write_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7, ocp_data);
2591
2592 for (i = 0; i < 1000; i++) {
2593 ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
2594 if (ocp_data & LINK_LIST_READY)
2595 break;
hayeswang8ddfa072014-09-09 11:40:28 +08002596 usleep_range(1000, 2000);
hayeswangac718b62013-05-02 16:01:25 +00002597 }
2598
2599 ocp_write_word(tp, MCU_TYPE_PLA, PLA_RMS, RTL8152_RMS);
2600
hayeswangc5554292014-09-12 10:43:11 +08002601 rtl_rx_vlan_en(tp, true);
hayeswangac718b62013-05-02 16:01:25 +00002602
2603 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PAL_BDC_CR);
2604 ocp_data |= ALDPS_PROXY_MODE;
2605 ocp_write_word(tp, MCU_TYPE_PLA, PAL_BDC_CR, ocp_data);
2606
2607 ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
2608 ocp_data |= NOW_IS_OOB | DIS_MCU_CLROOB;
2609 ocp_write_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL, ocp_data);
2610
hayeswang00a5e362014-02-18 21:48:59 +08002611 rxdy_gated_en(tp, false);
hayeswangac718b62013-05-02 16:01:25 +00002612
2613 ocp_data = ocp_read_dword(tp, MCU_TYPE_PLA, PLA_RCR);
2614 ocp_data |= RCR_APM | RCR_AM | RCR_AB;
2615 ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RCR, ocp_data);
2616}
2617
hayeswang43779f82014-01-02 11:25:10 +08002618static void r8153_hw_phy_cfg(struct r8152 *tp)
2619{
2620 u32 ocp_data;
2621 u16 data;
2622
hayeswangfb02eb42015-07-22 15:27:41 +08002623 if (tp->version == RTL_VER_03 || tp->version == RTL_VER_04 ||
2624 tp->version == RTL_VER_05)
2625 ocp_reg_write(tp, OCP_ADC_CFG, CKADSEL_L | ADC_EN | EN_EMI_L);
2626
hayeswangf0cbe0a2014-02-18 21:49:03 +08002627 data = r8152_mdio_read(tp, MII_BMCR);
2628 if (data & BMCR_PDOWN) {
2629 data &= ~BMCR_PDOWN;
2630 r8152_mdio_write(tp, MII_BMCR, data);
2631 }
hayeswang43779f82014-01-02 11:25:10 +08002632
2633 if (tp->version == RTL_VER_03) {
2634 data = ocp_reg_read(tp, OCP_EEE_CFG);
2635 data &= ~CTAP_SHORT_EN;
2636 ocp_reg_write(tp, OCP_EEE_CFG, data);
2637 }
2638
2639 data = ocp_reg_read(tp, OCP_POWER_CFG);
2640 data |= EEE_CLKDIV_EN;
2641 ocp_reg_write(tp, OCP_POWER_CFG, data);
2642
2643 data = ocp_reg_read(tp, OCP_DOWN_SPEED);
2644 data |= EN_10M_BGOFF;
2645 ocp_reg_write(tp, OCP_DOWN_SPEED, data);
2646 data = ocp_reg_read(tp, OCP_POWER_CFG);
2647 data |= EN_10M_PLLOFF;
2648 ocp_reg_write(tp, OCP_POWER_CFG, data);
hayeswangb4d99de2015-01-19 17:02:46 +08002649 sram_write(tp, SRAM_IMPEDANCE, 0x0b13);
hayeswang43779f82014-01-02 11:25:10 +08002650
2651 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_PHY_PWR);
2652 ocp_data |= PFM_PWM_SWITCH;
2653 ocp_write_word(tp, MCU_TYPE_PLA, PLA_PHY_PWR, ocp_data);
2654
hayeswangb4d99de2015-01-19 17:02:46 +08002655 /* Enable LPF corner auto tune */
2656 sram_write(tp, SRAM_LPF_CFG, 0xf70f);
hayeswang43779f82014-01-02 11:25:10 +08002657
hayeswangb4d99de2015-01-19 17:02:46 +08002658 /* Adjust 10M Amplitude */
2659 sram_write(tp, SRAM_10M_AMP1, 0x00af);
2660 sram_write(tp, SRAM_10M_AMP2, 0x0208);
hayeswangaa66a5f2014-02-18 21:49:04 +08002661
2662 set_bit(PHY_RESET, &tp->flags);
hayeswang43779f82014-01-02 11:25:10 +08002663}
2664
hayeswang43779f82014-01-02 11:25:10 +08002665static void r8153_first_init(struct r8152 *tp)
2666{
2667 u32 ocp_data;
2668 int i;
2669
hayeswang00a5e362014-02-18 21:48:59 +08002670 rxdy_gated_en(tp, true);
hayeswang43779f82014-01-02 11:25:10 +08002671 r8153_teredo_off(tp);
2672
2673 ocp_data = ocp_read_dword(tp, MCU_TYPE_PLA, PLA_RCR);
2674 ocp_data &= ~RCR_ACPT_ALL;
2675 ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RCR, ocp_data);
2676
2677 r8153_hw_phy_cfg(tp);
2678
2679 rtl8152_nic_reset(tp);
2680
2681 ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
2682 ocp_data &= ~NOW_IS_OOB;
2683 ocp_write_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL, ocp_data);
2684
2685 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7);
2686 ocp_data &= ~MCU_BORW_EN;
2687 ocp_write_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7, ocp_data);
2688
2689 for (i = 0; i < 1000; i++) {
2690 ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
2691 if (ocp_data & LINK_LIST_READY)
2692 break;
hayeswang8ddfa072014-09-09 11:40:28 +08002693 usleep_range(1000, 2000);
hayeswang43779f82014-01-02 11:25:10 +08002694 }
2695
2696 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7);
2697 ocp_data |= RE_INIT_LL;
2698 ocp_write_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7, ocp_data);
2699
2700 for (i = 0; i < 1000; i++) {
2701 ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
2702 if (ocp_data & LINK_LIST_READY)
2703 break;
hayeswang8ddfa072014-09-09 11:40:28 +08002704 usleep_range(1000, 2000);
hayeswang43779f82014-01-02 11:25:10 +08002705 }
2706
hayeswangc5554292014-09-12 10:43:11 +08002707 rtl_rx_vlan_en(tp, tp->netdev->features & NETIF_F_HW_VLAN_CTAG_RX);
hayeswang43779f82014-01-02 11:25:10 +08002708
hayeswang69b4b7a2014-07-10 10:58:54 +08002709 ocp_write_word(tp, MCU_TYPE_PLA, PLA_RMS, RTL8153_RMS);
2710 ocp_write_byte(tp, MCU_TYPE_PLA, PLA_MTPS, MTPS_JUMBO);
hayeswang43779f82014-01-02 11:25:10 +08002711
2712 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_TCR0);
2713 ocp_data |= TCR0_AUTO_FIFO;
2714 ocp_write_word(tp, MCU_TYPE_PLA, PLA_TCR0, ocp_data);
2715
2716 rtl8152_nic_reset(tp);
2717
2718 /* rx share fifo credit full threshold */
2719 ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL0, RXFIFO_THR1_NORMAL);
2720 ocp_write_word(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL1, RXFIFO_THR2_NORMAL);
2721 ocp_write_word(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL2, RXFIFO_THR3_NORMAL);
2722 /* TX share fifo free credit full threshold */
2723 ocp_write_dword(tp, MCU_TYPE_PLA, PLA_TXFIFO_CTRL, TXFIFO_THR_NORMAL2);
2724
hayeswang9629e3c2014-01-15 10:42:15 +08002725 /* rx aggregation */
hayeswang43779f82014-01-02 11:25:10 +08002726 ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_USB_CTRL);
hayeswange90fba82015-07-31 11:23:39 +08002727 ocp_data &= ~(RX_AGG_DISABLE | RX_ZERO_EN);
hayeswang43779f82014-01-02 11:25:10 +08002728 ocp_write_word(tp, MCU_TYPE_USB, USB_USB_CTRL, ocp_data);
2729}
2730
2731static void r8153_enter_oob(struct r8152 *tp)
2732{
2733 u32 ocp_data;
2734 int i;
2735
2736 ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
2737 ocp_data &= ~NOW_IS_OOB;
2738 ocp_write_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL, ocp_data);
2739
hayeswangd70b1132014-09-19 15:17:18 +08002740 rtl_disable(tp);
hayeswang43779f82014-01-02 11:25:10 +08002741
2742 for (i = 0; i < 1000; i++) {
2743 ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
2744 if (ocp_data & LINK_LIST_READY)
2745 break;
hayeswang8ddfa072014-09-09 11:40:28 +08002746 usleep_range(1000, 2000);
hayeswang43779f82014-01-02 11:25:10 +08002747 }
2748
2749 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7);
2750 ocp_data |= RE_INIT_LL;
2751 ocp_write_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7, ocp_data);
2752
2753 for (i = 0; i < 1000; i++) {
2754 ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
2755 if (ocp_data & LINK_LIST_READY)
2756 break;
hayeswang8ddfa072014-09-09 11:40:28 +08002757 usleep_range(1000, 2000);
hayeswang43779f82014-01-02 11:25:10 +08002758 }
2759
hayeswang69b4b7a2014-07-10 10:58:54 +08002760 ocp_write_word(tp, MCU_TYPE_PLA, PLA_RMS, RTL8153_RMS);
hayeswang43779f82014-01-02 11:25:10 +08002761
hayeswang43779f82014-01-02 11:25:10 +08002762 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_TEREDO_CFG);
2763 ocp_data &= ~TEREDO_WAKE_MASK;
2764 ocp_write_word(tp, MCU_TYPE_PLA, PLA_TEREDO_CFG, ocp_data);
2765
hayeswangc5554292014-09-12 10:43:11 +08002766 rtl_rx_vlan_en(tp, true);
hayeswang43779f82014-01-02 11:25:10 +08002767
2768 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PAL_BDC_CR);
2769 ocp_data |= ALDPS_PROXY_MODE;
2770 ocp_write_word(tp, MCU_TYPE_PLA, PAL_BDC_CR, ocp_data);
2771
2772 ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
2773 ocp_data |= NOW_IS_OOB | DIS_MCU_CLROOB;
2774 ocp_write_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL, ocp_data);
2775
hayeswang00a5e362014-02-18 21:48:59 +08002776 rxdy_gated_en(tp, false);
hayeswang43779f82014-01-02 11:25:10 +08002777
2778 ocp_data = ocp_read_dword(tp, MCU_TYPE_PLA, PLA_RCR);
2779 ocp_data |= RCR_APM | RCR_AM | RCR_AB;
2780 ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RCR, ocp_data);
2781}
2782
hayeswangcda9fb02016-01-07 17:51:12 +08002783static void r8153_aldps_en(struct r8152 *tp, bool enable)
hayeswang43779f82014-01-02 11:25:10 +08002784{
2785 u16 data;
2786
2787 data = ocp_reg_read(tp, OCP_POWER_CFG);
hayeswangcda9fb02016-01-07 17:51:12 +08002788 if (enable) {
2789 data |= EN_ALDPS;
2790 ocp_reg_write(tp, OCP_POWER_CFG, data);
2791 } else {
2792 data &= ~EN_ALDPS;
2793 ocp_reg_write(tp, OCP_POWER_CFG, data);
2794 msleep(20);
2795 }
hayeswang43779f82014-01-02 11:25:10 +08002796}
2797
hayeswangd70b1132014-09-19 15:17:18 +08002798static void rtl8153_disable(struct r8152 *tp)
2799{
hayeswangcda9fb02016-01-07 17:51:12 +08002800 r8153_aldps_en(tp, false);
hayeswangd70b1132014-09-19 15:17:18 +08002801 rtl_disable(tp);
hayeswangcda9fb02016-01-07 17:51:12 +08002802 r8153_aldps_en(tp, true);
hayeswangb2143962015-07-24 13:54:23 +08002803 usb_enable_lpm(tp->udev);
hayeswangd70b1132014-09-19 15:17:18 +08002804}
2805
hayeswangac718b62013-05-02 16:01:25 +00002806static int rtl8152_set_speed(struct r8152 *tp, u8 autoneg, u16 speed, u8 duplex)
2807{
hayeswang43779f82014-01-02 11:25:10 +08002808 u16 bmcr, anar, gbcr;
hayeswangac718b62013-05-02 16:01:25 +00002809 int ret = 0;
2810
2811 cancel_delayed_work_sync(&tp->schedule);
2812 anar = r8152_mdio_read(tp, MII_ADVERTISE);
2813 anar &= ~(ADVERTISE_10HALF | ADVERTISE_10FULL |
2814 ADVERTISE_100HALF | ADVERTISE_100FULL);
hayeswang43779f82014-01-02 11:25:10 +08002815 if (tp->mii.supports_gmii) {
2816 gbcr = r8152_mdio_read(tp, MII_CTRL1000);
2817 gbcr &= ~(ADVERTISE_1000FULL | ADVERTISE_1000HALF);
2818 } else {
2819 gbcr = 0;
2820 }
hayeswangac718b62013-05-02 16:01:25 +00002821
2822 if (autoneg == AUTONEG_DISABLE) {
2823 if (speed == SPEED_10) {
2824 bmcr = 0;
2825 anar |= ADVERTISE_10HALF | ADVERTISE_10FULL;
2826 } else if (speed == SPEED_100) {
2827 bmcr = BMCR_SPEED100;
2828 anar |= ADVERTISE_100HALF | ADVERTISE_100FULL;
hayeswang43779f82014-01-02 11:25:10 +08002829 } else if (speed == SPEED_1000 && tp->mii.supports_gmii) {
2830 bmcr = BMCR_SPEED1000;
2831 gbcr |= ADVERTISE_1000FULL | ADVERTISE_1000HALF;
hayeswangac718b62013-05-02 16:01:25 +00002832 } else {
2833 ret = -EINVAL;
2834 goto out;
2835 }
2836
2837 if (duplex == DUPLEX_FULL)
2838 bmcr |= BMCR_FULLDPLX;
2839 } else {
2840 if (speed == SPEED_10) {
2841 if (duplex == DUPLEX_FULL)
2842 anar |= ADVERTISE_10HALF | ADVERTISE_10FULL;
2843 else
2844 anar |= ADVERTISE_10HALF;
2845 } else if (speed == SPEED_100) {
2846 if (duplex == DUPLEX_FULL) {
2847 anar |= ADVERTISE_10HALF | ADVERTISE_10FULL;
2848 anar |= ADVERTISE_100HALF | ADVERTISE_100FULL;
2849 } else {
2850 anar |= ADVERTISE_10HALF;
2851 anar |= ADVERTISE_100HALF;
2852 }
hayeswang43779f82014-01-02 11:25:10 +08002853 } else if (speed == SPEED_1000 && tp->mii.supports_gmii) {
2854 if (duplex == DUPLEX_FULL) {
2855 anar |= ADVERTISE_10HALF | ADVERTISE_10FULL;
2856 anar |= ADVERTISE_100HALF | ADVERTISE_100FULL;
2857 gbcr |= ADVERTISE_1000FULL | ADVERTISE_1000HALF;
2858 } else {
2859 anar |= ADVERTISE_10HALF;
2860 anar |= ADVERTISE_100HALF;
2861 gbcr |= ADVERTISE_1000HALF;
2862 }
hayeswangac718b62013-05-02 16:01:25 +00002863 } else {
2864 ret = -EINVAL;
2865 goto out;
2866 }
2867
2868 bmcr = BMCR_ANENABLE | BMCR_ANRESTART;
2869 }
2870
hayeswangaa66a5f2014-02-18 21:49:04 +08002871 if (test_bit(PHY_RESET, &tp->flags))
2872 bmcr |= BMCR_RESET;
2873
hayeswang43779f82014-01-02 11:25:10 +08002874 if (tp->mii.supports_gmii)
2875 r8152_mdio_write(tp, MII_CTRL1000, gbcr);
2876
hayeswangac718b62013-05-02 16:01:25 +00002877 r8152_mdio_write(tp, MII_ADVERTISE, anar);
2878 r8152_mdio_write(tp, MII_BMCR, bmcr);
2879
hayeswang216a8342016-01-07 17:51:11 +08002880 if (test_and_clear_bit(PHY_RESET, &tp->flags)) {
hayeswangaa66a5f2014-02-18 21:49:04 +08002881 int i;
2882
hayeswangaa66a5f2014-02-18 21:49:04 +08002883 for (i = 0; i < 50; i++) {
2884 msleep(20);
2885 if ((r8152_mdio_read(tp, MII_BMCR) & BMCR_RESET) == 0)
2886 break;
2887 }
2888 }
2889
hayeswangac718b62013-05-02 16:01:25 +00002890out:
hayeswangac718b62013-05-02 16:01:25 +00002891 return ret;
2892}
2893
hayeswangd70b1132014-09-19 15:17:18 +08002894static void rtl8152_up(struct r8152 *tp)
2895{
2896 if (test_bit(RTL8152_UNPLUG, &tp->flags))
2897 return;
2898
hayeswangcda9fb02016-01-07 17:51:12 +08002899 r8152_aldps_en(tp, false);
hayeswangd70b1132014-09-19 15:17:18 +08002900 r8152b_exit_oob(tp);
hayeswangcda9fb02016-01-07 17:51:12 +08002901 r8152_aldps_en(tp, true);
hayeswangd70b1132014-09-19 15:17:18 +08002902}
2903
hayeswangac718b62013-05-02 16:01:25 +00002904static void rtl8152_down(struct r8152 *tp)
2905{
hayeswang68714382014-04-11 17:54:31 +08002906 if (test_bit(RTL8152_UNPLUG, &tp->flags)) {
2907 rtl_drop_queued_tx(tp);
2908 return;
2909 }
2910
hayeswang00a5e362014-02-18 21:48:59 +08002911 r8152_power_cut_en(tp, false);
hayeswangcda9fb02016-01-07 17:51:12 +08002912 r8152_aldps_en(tp, false);
hayeswangac718b62013-05-02 16:01:25 +00002913 r8152b_enter_oob(tp);
hayeswangcda9fb02016-01-07 17:51:12 +08002914 r8152_aldps_en(tp, true);
hayeswangac718b62013-05-02 16:01:25 +00002915}
2916
hayeswangd70b1132014-09-19 15:17:18 +08002917static void rtl8153_up(struct r8152 *tp)
2918{
2919 if (test_bit(RTL8152_UNPLUG, &tp->flags))
2920 return;
2921
hayeswangb2143962015-07-24 13:54:23 +08002922 r8153_u1u2en(tp, false);
hayeswangcda9fb02016-01-07 17:51:12 +08002923 r8153_aldps_en(tp, false);
hayeswangd70b1132014-09-19 15:17:18 +08002924 r8153_first_init(tp);
hayeswangcda9fb02016-01-07 17:51:12 +08002925 r8153_aldps_en(tp, true);
hayeswangb2143962015-07-24 13:54:23 +08002926 r8153_u2p3en(tp, true);
2927 r8153_u1u2en(tp, true);
2928 usb_enable_lpm(tp->udev);
hayeswangd70b1132014-09-19 15:17:18 +08002929}
2930
hayeswang43779f82014-01-02 11:25:10 +08002931static void rtl8153_down(struct r8152 *tp)
2932{
hayeswang68714382014-04-11 17:54:31 +08002933 if (test_bit(RTL8152_UNPLUG, &tp->flags)) {
2934 rtl_drop_queued_tx(tp);
2935 return;
2936 }
2937
hayeswangb9702722014-02-18 21:49:00 +08002938 r8153_u1u2en(tp, false);
hayeswangb2143962015-07-24 13:54:23 +08002939 r8153_u2p3en(tp, false);
hayeswangb9702722014-02-18 21:49:00 +08002940 r8153_power_cut_en(tp, false);
hayeswangcda9fb02016-01-07 17:51:12 +08002941 r8153_aldps_en(tp, false);
hayeswang43779f82014-01-02 11:25:10 +08002942 r8153_enter_oob(tp);
hayeswangcda9fb02016-01-07 17:51:12 +08002943 r8153_aldps_en(tp, true);
hayeswang43779f82014-01-02 11:25:10 +08002944}
2945
hayeswang2dd49e02015-09-07 11:57:44 +08002946static bool rtl8152_in_nway(struct r8152 *tp)
2947{
2948 u16 nway_state;
2949
2950 ocp_write_word(tp, MCU_TYPE_PLA, PLA_OCP_GPHY_BASE, 0x2000);
2951 tp->ocp_base = 0x2000;
2952 ocp_write_byte(tp, MCU_TYPE_PLA, 0xb014, 0x4c); /* phy state */
2953 nway_state = ocp_read_word(tp, MCU_TYPE_PLA, 0xb01a);
2954
2955 /* bit 15: TXDIS_STATE, bit 14: ABD_STATE */
2956 if (nway_state & 0xc000)
2957 return false;
2958 else
2959 return true;
2960}
2961
2962static bool rtl8153_in_nway(struct r8152 *tp)
2963{
2964 u16 phy_state = ocp_reg_read(tp, OCP_PHY_STATE) & 0xff;
2965
2966 if (phy_state == TXDIS_STATE || phy_state == ABD_STATE)
2967 return false;
2968 else
2969 return true;
2970}
2971
hayeswangac718b62013-05-02 16:01:25 +00002972static void set_carrier(struct r8152 *tp)
2973{
2974 struct net_device *netdev = tp->netdev;
2975 u8 speed;
2976
2977 speed = rtl8152_get_speed(tp);
2978
2979 if (speed & LINK_STATUS) {
hayeswang51d979f2015-02-06 11:30:47 +08002980 if (!netif_carrier_ok(netdev)) {
hayeswangc81229c2014-01-02 11:22:42 +08002981 tp->rtl_ops.enable(tp);
hayeswangac718b62013-05-02 16:01:25 +00002982 set_bit(RTL8152_SET_RX_MODE, &tp->flags);
hayeswang41cec842015-07-24 13:54:25 +08002983 napi_disable(&tp->napi);
hayeswangac718b62013-05-02 16:01:25 +00002984 netif_carrier_on(netdev);
hayeswangaa2e0922015-01-09 10:26:35 +08002985 rtl_start_rx(tp);
hayeswang41cec842015-07-24 13:54:25 +08002986 napi_enable(&tp->napi);
hayeswangac718b62013-05-02 16:01:25 +00002987 }
2988 } else {
hayeswang51d979f2015-02-06 11:30:47 +08002989 if (netif_carrier_ok(netdev)) {
hayeswangac718b62013-05-02 16:01:25 +00002990 netif_carrier_off(netdev);
hayeswangd823ab62015-01-12 12:06:23 +08002991 napi_disable(&tp->napi);
hayeswangc81229c2014-01-02 11:22:42 +08002992 tp->rtl_ops.disable(tp);
hayeswangd823ab62015-01-12 12:06:23 +08002993 napi_enable(&tp->napi);
hayeswangac718b62013-05-02 16:01:25 +00002994 }
2995 }
hayeswangac718b62013-05-02 16:01:25 +00002996}
2997
2998static void rtl_work_func_t(struct work_struct *work)
2999{
3000 struct r8152 *tp = container_of(work, struct r8152, schedule.work);
3001
hayeswanga1f83fe2014-11-12 10:05:05 +08003002 /* If the device is unplugged or !netif_running(), the workqueue
3003 * doesn't need to wake the device, and could return directly.
3004 */
3005 if (test_bit(RTL8152_UNPLUG, &tp->flags) || !netif_running(tp->netdev))
3006 return;
3007
hayeswang9a4be1b2014-02-18 21:49:07 +08003008 if (usb_autopm_get_interface(tp->intf) < 0)
3009 return;
3010
hayeswangac718b62013-05-02 16:01:25 +00003011 if (!test_bit(WORK_ENABLE, &tp->flags))
3012 goto out1;
3013
hayeswangb5403272014-10-09 18:00:26 +08003014 if (!mutex_trylock(&tp->control)) {
3015 schedule_delayed_work(&tp->schedule, 0);
3016 goto out1;
3017 }
3018
hayeswang216a8342016-01-07 17:51:11 +08003019 if (test_and_clear_bit(RTL8152_LINK_CHG, &tp->flags))
hayeswang40a82912013-08-14 20:54:40 +08003020 set_carrier(tp);
hayeswangac718b62013-05-02 16:01:25 +00003021
hayeswang216a8342016-01-07 17:51:11 +08003022 if (test_and_clear_bit(RTL8152_SET_RX_MODE, &tp->flags))
hayeswangac718b62013-05-02 16:01:25 +00003023 _rtl8152_set_rx_mode(tp->netdev);
3024
hayeswangd823ab62015-01-12 12:06:23 +08003025 /* don't schedule napi before linking */
hayeswang216a8342016-01-07 17:51:11 +08003026 if (test_and_clear_bit(SCHEDULE_NAPI, &tp->flags) &&
3027 netif_carrier_ok(tp->netdev))
hayeswangd823ab62015-01-12 12:06:23 +08003028 napi_schedule(&tp->napi);
hayeswangaa66a5f2014-02-18 21:49:04 +08003029
hayeswang216a8342016-01-07 17:51:11 +08003030 if (test_and_clear_bit(PHY_RESET, &tp->flags))
hayeswangaa66a5f2014-02-18 21:49:04 +08003031 rtl_phy_reset(tp);
3032
hayeswangb5403272014-10-09 18:00:26 +08003033 mutex_unlock(&tp->control);
3034
hayeswangac718b62013-05-02 16:01:25 +00003035out1:
hayeswang9a4be1b2014-02-18 21:49:07 +08003036 usb_autopm_put_interface(tp->intf);
hayeswangac718b62013-05-02 16:01:25 +00003037}
3038
3039static int rtl8152_open(struct net_device *netdev)
3040{
3041 struct r8152 *tp = netdev_priv(netdev);
3042 int res = 0;
3043
hayeswang7e9da482014-02-18 21:49:05 +08003044 res = alloc_all_mem(tp);
3045 if (res)
3046 goto out;
3047
hayeswang51d979f2015-02-06 11:30:47 +08003048 netif_carrier_off(netdev);
hayeswangf4c74762014-10-29 11:12:16 +08003049
hayeswang9a4be1b2014-02-18 21:49:07 +08003050 res = usb_autopm_get_interface(tp->intf);
3051 if (res < 0) {
3052 free_all_mem(tp);
3053 goto out;
3054 }
3055
hayeswangb5403272014-10-09 18:00:26 +08003056 mutex_lock(&tp->control);
3057
hayeswang7e9da482014-02-18 21:49:05 +08003058 tp->rtl_ops.up(tp);
3059
hayeswang43779f82014-01-02 11:25:10 +08003060 rtl8152_set_speed(tp, AUTONEG_ENABLE,
3061 tp->mii.supports_gmii ? SPEED_1000 : SPEED_100,
3062 DUPLEX_FULL);
hayeswang40a82912013-08-14 20:54:40 +08003063 netif_carrier_off(netdev);
hayeswangac718b62013-05-02 16:01:25 +00003064 netif_start_queue(netdev);
3065 set_bit(WORK_ENABLE, &tp->flags);
hayeswangdb8515e2014-03-06 15:07:16 +08003066
hayeswang3d55f442014-02-06 11:55:48 +08003067 res = usb_submit_urb(tp->intr_urb, GFP_KERNEL);
3068 if (res) {
3069 if (res == -ENODEV)
3070 netif_device_detach(tp->netdev);
3071 netif_warn(tp, ifup, netdev, "intr_urb submit failed: %d\n",
3072 res);
hayeswang7e9da482014-02-18 21:49:05 +08003073 free_all_mem(tp);
hayeswang93ffbea2014-11-05 10:17:02 +08003074 } else {
hayeswangd823ab62015-01-12 12:06:23 +08003075 napi_enable(&tp->napi);
hayeswang3d55f442014-02-06 11:55:48 +08003076 }
3077
hayeswangb5403272014-10-09 18:00:26 +08003078 mutex_unlock(&tp->control);
3079
hayeswang9a4be1b2014-02-18 21:49:07 +08003080 usb_autopm_put_interface(tp->intf);
hayeswangac718b62013-05-02 16:01:25 +00003081
hayeswang7e9da482014-02-18 21:49:05 +08003082out:
hayeswangac718b62013-05-02 16:01:25 +00003083 return res;
3084}
3085
3086static int rtl8152_close(struct net_device *netdev)
3087{
3088 struct r8152 *tp = netdev_priv(netdev);
3089 int res = 0;
3090
hayeswangd823ab62015-01-12 12:06:23 +08003091 napi_disable(&tp->napi);
hayeswangac718b62013-05-02 16:01:25 +00003092 clear_bit(WORK_ENABLE, &tp->flags);
hayeswang3d55f442014-02-06 11:55:48 +08003093 usb_kill_urb(tp->intr_urb);
hayeswangac718b62013-05-02 16:01:25 +00003094 cancel_delayed_work_sync(&tp->schedule);
3095 netif_stop_queue(netdev);
hayeswang9a4be1b2014-02-18 21:49:07 +08003096
3097 res = usb_autopm_get_interface(tp->intf);
hayeswang53543db2015-02-06 11:30:48 +08003098 if (res < 0 || test_bit(RTL8152_UNPLUG, &tp->flags)) {
hayeswang9a4be1b2014-02-18 21:49:07 +08003099 rtl_drop_queued_tx(tp);
hayeswangd823ab62015-01-12 12:06:23 +08003100 rtl_stop_rx(tp);
hayeswang9a4be1b2014-02-18 21:49:07 +08003101 } else {
hayeswangb5403272014-10-09 18:00:26 +08003102 mutex_lock(&tp->control);
3103
hayeswang9a4be1b2014-02-18 21:49:07 +08003104 tp->rtl_ops.down(tp);
hayeswangb5403272014-10-09 18:00:26 +08003105
3106 mutex_unlock(&tp->control);
3107
hayeswang9a4be1b2014-02-18 21:49:07 +08003108 usb_autopm_put_interface(tp->intf);
3109 }
hayeswangac718b62013-05-02 16:01:25 +00003110
hayeswang7e9da482014-02-18 21:49:05 +08003111 free_all_mem(tp);
3112
hayeswangac718b62013-05-02 16:01:25 +00003113 return res;
3114}
3115
hayeswangd24f6132014-09-25 20:54:01 +08003116static inline void r8152_mmd_indirect(struct r8152 *tp, u16 dev, u16 reg)
hayeswangac718b62013-05-02 16:01:25 +00003117{
hayeswangd24f6132014-09-25 20:54:01 +08003118 ocp_reg_write(tp, OCP_EEE_AR, FUN_ADDR | dev);
3119 ocp_reg_write(tp, OCP_EEE_DATA, reg);
3120 ocp_reg_write(tp, OCP_EEE_AR, FUN_DATA | dev);
3121}
3122
3123static u16 r8152_mmd_read(struct r8152 *tp, u16 dev, u16 reg)
3124{
3125 u16 data;
3126
3127 r8152_mmd_indirect(tp, dev, reg);
3128 data = ocp_reg_read(tp, OCP_EEE_DATA);
3129 ocp_reg_write(tp, OCP_EEE_AR, 0x0000);
3130
3131 return data;
3132}
3133
3134static void r8152_mmd_write(struct r8152 *tp, u16 dev, u16 reg, u16 data)
3135{
3136 r8152_mmd_indirect(tp, dev, reg);
3137 ocp_reg_write(tp, OCP_EEE_DATA, data);
3138 ocp_reg_write(tp, OCP_EEE_AR, 0x0000);
3139}
3140
3141static void r8152_eee_en(struct r8152 *tp, bool enable)
3142{
3143 u16 config1, config2, config3;
hayeswang45f4a192014-01-06 17:08:41 +08003144 u32 ocp_data;
hayeswangac718b62013-05-02 16:01:25 +00003145
3146 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_EEE_CR);
hayeswangd24f6132014-09-25 20:54:01 +08003147 config1 = ocp_reg_read(tp, OCP_EEE_CONFIG1) & ~sd_rise_time_mask;
3148 config2 = ocp_reg_read(tp, OCP_EEE_CONFIG2);
3149 config3 = ocp_reg_read(tp, OCP_EEE_CONFIG3) & ~fast_snr_mask;
3150
3151 if (enable) {
3152 ocp_data |= EEE_RX_EN | EEE_TX_EN;
3153 config1 |= EEE_10_CAP | EEE_NWAY_EN | TX_QUIET_EN | RX_QUIET_EN;
3154 config1 |= sd_rise_time(1);
3155 config2 |= RG_DACQUIET_EN | RG_LDVQUIET_EN;
3156 config3 |= fast_snr(42);
3157 } else {
3158 ocp_data &= ~(EEE_RX_EN | EEE_TX_EN);
3159 config1 &= ~(EEE_10_CAP | EEE_NWAY_EN | TX_QUIET_EN |
3160 RX_QUIET_EN);
3161 config1 |= sd_rise_time(7);
3162 config2 &= ~(RG_DACQUIET_EN | RG_LDVQUIET_EN);
3163 config3 |= fast_snr(511);
3164 }
3165
hayeswangac718b62013-05-02 16:01:25 +00003166 ocp_write_word(tp, MCU_TYPE_PLA, PLA_EEE_CR, ocp_data);
hayeswangd24f6132014-09-25 20:54:01 +08003167 ocp_reg_write(tp, OCP_EEE_CONFIG1, config1);
3168 ocp_reg_write(tp, OCP_EEE_CONFIG2, config2);
3169 ocp_reg_write(tp, OCP_EEE_CONFIG3, config3);
3170}
3171
3172static void r8152b_enable_eee(struct r8152 *tp)
3173{
3174 r8152_eee_en(tp, true);
3175 r8152_mmd_write(tp, MDIO_MMD_AN, MDIO_AN_EEE_ADV, MDIO_EEE_100TX);
3176}
3177
3178static void r8153_eee_en(struct r8152 *tp, bool enable)
3179{
3180 u32 ocp_data;
3181 u16 config;
3182
3183 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_EEE_CR);
3184 config = ocp_reg_read(tp, OCP_EEE_CFG);
3185
3186 if (enable) {
3187 ocp_data |= EEE_RX_EN | EEE_TX_EN;
3188 config |= EEE10_EN;
3189 } else {
3190 ocp_data &= ~(EEE_RX_EN | EEE_TX_EN);
3191 config &= ~EEE10_EN;
3192 }
3193
3194 ocp_write_word(tp, MCU_TYPE_PLA, PLA_EEE_CR, ocp_data);
3195 ocp_reg_write(tp, OCP_EEE_CFG, config);
hayeswangac718b62013-05-02 16:01:25 +00003196}
3197
hayeswang43779f82014-01-02 11:25:10 +08003198static void r8153_enable_eee(struct r8152 *tp)
3199{
hayeswangd24f6132014-09-25 20:54:01 +08003200 r8153_eee_en(tp, true);
3201 ocp_reg_write(tp, OCP_EEE_ADV, MDIO_EEE_1000T | MDIO_EEE_100TX);
hayeswang43779f82014-01-02 11:25:10 +08003202}
3203
hayeswangac718b62013-05-02 16:01:25 +00003204static void r8152b_enable_fc(struct r8152 *tp)
3205{
3206 u16 anar;
3207
3208 anar = r8152_mdio_read(tp, MII_ADVERTISE);
3209 anar |= ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM;
3210 r8152_mdio_write(tp, MII_ADVERTISE, anar);
3211}
3212
hayeswang4f1d4d52014-03-11 16:24:19 +08003213static void rtl_tally_reset(struct r8152 *tp)
3214{
3215 u32 ocp_data;
3216
3217 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_RSTTALLY);
3218 ocp_data |= TALLY_RESET;
3219 ocp_write_word(tp, MCU_TYPE_PLA, PLA_RSTTALLY, ocp_data);
3220}
3221
hayeswangac718b62013-05-02 16:01:25 +00003222static void r8152b_init(struct r8152 *tp)
3223{
hayeswangebc2ec482013-08-14 20:54:38 +08003224 u32 ocp_data;
hayeswangac718b62013-05-02 16:01:25 +00003225
hayeswang68714382014-04-11 17:54:31 +08003226 if (test_bit(RTL8152_UNPLUG, &tp->flags))
3227 return;
3228
hayeswangcda9fb02016-01-07 17:51:12 +08003229 r8152_aldps_en(tp, false);
hayeswangd70b1132014-09-19 15:17:18 +08003230
hayeswangac718b62013-05-02 16:01:25 +00003231 if (tp->version == RTL_VER_01) {
3232 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_LED_FEATURE);
3233 ocp_data &= ~LED_MODE_MASK;
3234 ocp_write_word(tp, MCU_TYPE_PLA, PLA_LED_FEATURE, ocp_data);
3235 }
3236
hayeswang00a5e362014-02-18 21:48:59 +08003237 r8152_power_cut_en(tp, false);
hayeswangac718b62013-05-02 16:01:25 +00003238
hayeswangac718b62013-05-02 16:01:25 +00003239 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_PHY_PWR);
3240 ocp_data |= TX_10M_IDLE_EN | PFM_PWM_SWITCH;
3241 ocp_write_word(tp, MCU_TYPE_PLA, PLA_PHY_PWR, ocp_data);
3242 ocp_data = ocp_read_dword(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL);
3243 ocp_data &= ~MCU_CLK_RATIO_MASK;
3244 ocp_data |= MCU_CLK_RATIO | D3_CLK_GATED_EN;
3245 ocp_write_dword(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL, ocp_data);
3246 ocp_data = GPHY_STS_MSK | SPEED_DOWN_MSK |
3247 SPDWN_RXDV_MSK | SPDWN_LINKCHG_MSK;
3248 ocp_write_word(tp, MCU_TYPE_PLA, PLA_GPHY_INTR_IMR, ocp_data);
3249
3250 r8152b_enable_eee(tp);
hayeswangcda9fb02016-01-07 17:51:12 +08003251 r8152_aldps_en(tp, true);
hayeswangac718b62013-05-02 16:01:25 +00003252 r8152b_enable_fc(tp);
hayeswang4f1d4d52014-03-11 16:24:19 +08003253 rtl_tally_reset(tp);
hayeswangac718b62013-05-02 16:01:25 +00003254
hayeswangebc2ec482013-08-14 20:54:38 +08003255 /* enable rx aggregation */
hayeswangac718b62013-05-02 16:01:25 +00003256 ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_USB_CTRL);
hayeswange90fba82015-07-31 11:23:39 +08003257 ocp_data &= ~(RX_AGG_DISABLE | RX_ZERO_EN);
hayeswangac718b62013-05-02 16:01:25 +00003258 ocp_write_word(tp, MCU_TYPE_USB, USB_USB_CTRL, ocp_data);
3259}
3260
hayeswang43779f82014-01-02 11:25:10 +08003261static void r8153_init(struct r8152 *tp)
3262{
3263 u32 ocp_data;
3264 int i;
3265
hayeswang68714382014-04-11 17:54:31 +08003266 if (test_bit(RTL8152_UNPLUG, &tp->flags))
3267 return;
3268
hayeswangcda9fb02016-01-07 17:51:12 +08003269 r8153_aldps_en(tp, false);
hayeswangb9702722014-02-18 21:49:00 +08003270 r8153_u1u2en(tp, false);
hayeswang43779f82014-01-02 11:25:10 +08003271
3272 for (i = 0; i < 500; i++) {
3273 if (ocp_read_word(tp, MCU_TYPE_PLA, PLA_BOOT_CTRL) &
3274 AUTOLOAD_DONE)
3275 break;
3276 msleep(20);
3277 }
3278
3279 for (i = 0; i < 500; i++) {
3280 ocp_data = ocp_reg_read(tp, OCP_PHY_STATUS) & PHY_STAT_MASK;
3281 if (ocp_data == PHY_STAT_LAN_ON || ocp_data == PHY_STAT_PWRDN)
3282 break;
3283 msleep(20);
3284 }
3285
hayeswangb2143962015-07-24 13:54:23 +08003286 usb_disable_lpm(tp->udev);
hayeswangb9702722014-02-18 21:49:00 +08003287 r8153_u2p3en(tp, false);
hayeswang43779f82014-01-02 11:25:10 +08003288
hayeswang65bab842015-02-12 16:20:46 +08003289 if (tp->version == RTL_VER_04) {
3290 ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_SSPHYLINK2);
3291 ocp_data &= ~pwd_dn_scale_mask;
3292 ocp_data |= pwd_dn_scale(96);
3293 ocp_write_word(tp, MCU_TYPE_USB, USB_SSPHYLINK2, ocp_data);
3294
3295 ocp_data = ocp_read_byte(tp, MCU_TYPE_USB, USB_USB2PHY);
3296 ocp_data |= USB2PHY_L1 | USB2PHY_SUSPEND;
3297 ocp_write_byte(tp, MCU_TYPE_USB, USB_USB2PHY, ocp_data);
3298 } else if (tp->version == RTL_VER_05) {
3299 ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_DMY_REG0);
3300 ocp_data &= ~ECM_ALDPS;
3301 ocp_write_byte(tp, MCU_TYPE_PLA, PLA_DMY_REG0, ocp_data);
3302
3303 ocp_data = ocp_read_byte(tp, MCU_TYPE_USB, USB_CSR_DUMMY1);
3304 if (ocp_read_word(tp, MCU_TYPE_USB, USB_BURST_SIZE) == 0)
3305 ocp_data &= ~DYNAMIC_BURST;
3306 else
3307 ocp_data |= DYNAMIC_BURST;
3308 ocp_write_byte(tp, MCU_TYPE_USB, USB_CSR_DUMMY1, ocp_data);
hayeswangfb02eb42015-07-22 15:27:41 +08003309 } else if (tp->version == RTL_VER_06) {
3310 ocp_data = ocp_read_byte(tp, MCU_TYPE_USB, USB_CSR_DUMMY1);
3311 if (ocp_read_word(tp, MCU_TYPE_USB, USB_BURST_SIZE) == 0)
3312 ocp_data &= ~DYNAMIC_BURST;
3313 else
3314 ocp_data |= DYNAMIC_BURST;
3315 ocp_write_byte(tp, MCU_TYPE_USB, USB_CSR_DUMMY1, ocp_data);
hayeswang65bab842015-02-12 16:20:46 +08003316 }
3317
3318 ocp_data = ocp_read_byte(tp, MCU_TYPE_USB, USB_CSR_DUMMY2);
3319 ocp_data |= EP4_FULL_FC;
3320 ocp_write_byte(tp, MCU_TYPE_USB, USB_CSR_DUMMY2, ocp_data);
3321
hayeswang43779f82014-01-02 11:25:10 +08003322 ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_WDT11_CTRL);
3323 ocp_data &= ~TIMER11_EN;
3324 ocp_write_word(tp, MCU_TYPE_USB, USB_WDT11_CTRL, ocp_data);
3325
hayeswang43779f82014-01-02 11:25:10 +08003326 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_LED_FEATURE);
3327 ocp_data &= ~LED_MODE_MASK;
3328 ocp_write_word(tp, MCU_TYPE_PLA, PLA_LED_FEATURE, ocp_data);
3329
hayeswang65bab842015-02-12 16:20:46 +08003330 ocp_data = FIFO_EMPTY_1FB | ROK_EXIT_LPM;
hayeswang34203e22015-02-06 11:30:46 +08003331 if (tp->version == RTL_VER_04 && tp->udev->speed != USB_SPEED_SUPER)
hayeswang43779f82014-01-02 11:25:10 +08003332 ocp_data |= LPM_TIMER_500MS;
hayeswang34203e22015-02-06 11:30:46 +08003333 else
3334 ocp_data |= LPM_TIMER_500US;
hayeswang43779f82014-01-02 11:25:10 +08003335 ocp_write_byte(tp, MCU_TYPE_USB, USB_LPM_CTRL, ocp_data);
3336
3337 ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_AFE_CTRL2);
3338 ocp_data &= ~SEN_VAL_MASK;
3339 ocp_data |= SEN_VAL_NORMAL | SEL_RXIDLE;
3340 ocp_write_word(tp, MCU_TYPE_USB, USB_AFE_CTRL2, ocp_data);
3341
hayeswang65bab842015-02-12 16:20:46 +08003342 ocp_write_word(tp, MCU_TYPE_USB, USB_CONNECT_TIMER, 0x0001);
3343
hayeswangb9702722014-02-18 21:49:00 +08003344 r8153_power_cut_en(tp, false);
3345 r8153_u1u2en(tp, true);
hayeswang43779f82014-01-02 11:25:10 +08003346
hayeswang43779f82014-01-02 11:25:10 +08003347 ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL, ALDPS_SPDWN_RATIO);
3348 ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL2, EEE_SPDWN_RATIO);
3349 ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL3,
3350 PKT_AVAIL_SPDWN_EN | SUSPEND_SPDWN_EN |
3351 U1U2_SPDWN_EN | L1_SPDWN_EN);
3352 ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL4,
3353 PWRSAVE_SPDWN_EN | RXDV_SPDWN_EN | TX10MIDLE_EN |
3354 TP100_SPDWN_EN | TP500_SPDWN_EN | TP1000_SPDWN_EN |
3355 EEE_SPDWN_EN);
3356
3357 r8153_enable_eee(tp);
hayeswangcda9fb02016-01-07 17:51:12 +08003358 r8153_aldps_en(tp, true);
hayeswang43779f82014-01-02 11:25:10 +08003359 r8152b_enable_fc(tp);
hayeswang4f1d4d52014-03-11 16:24:19 +08003360 rtl_tally_reset(tp);
hayeswangb2143962015-07-24 13:54:23 +08003361 r8153_u2p3en(tp, true);
hayeswang43779f82014-01-02 11:25:10 +08003362}
3363
hayeswange5011392015-07-29 20:39:08 +08003364static int rtl8152_pre_reset(struct usb_interface *intf)
3365{
3366 struct r8152 *tp = usb_get_intfdata(intf);
3367 struct net_device *netdev;
3368
3369 if (!tp)
3370 return 0;
3371
3372 netdev = tp->netdev;
3373 if (!netif_running(netdev))
3374 return 0;
3375
3376 napi_disable(&tp->napi);
3377 clear_bit(WORK_ENABLE, &tp->flags);
3378 usb_kill_urb(tp->intr_urb);
3379 cancel_delayed_work_sync(&tp->schedule);
3380 if (netif_carrier_ok(netdev)) {
3381 netif_stop_queue(netdev);
3382 mutex_lock(&tp->control);
3383 tp->rtl_ops.disable(tp);
3384 mutex_unlock(&tp->control);
3385 }
3386
3387 return 0;
3388}
3389
3390static int rtl8152_post_reset(struct usb_interface *intf)
3391{
3392 struct r8152 *tp = usb_get_intfdata(intf);
3393 struct net_device *netdev;
3394
3395 if (!tp)
3396 return 0;
3397
3398 netdev = tp->netdev;
3399 if (!netif_running(netdev))
3400 return 0;
3401
3402 set_bit(WORK_ENABLE, &tp->flags);
3403 if (netif_carrier_ok(netdev)) {
3404 mutex_lock(&tp->control);
3405 tp->rtl_ops.enable(tp);
3406 rtl8152_set_rx_mode(netdev);
3407 mutex_unlock(&tp->control);
3408 netif_wake_queue(netdev);
3409 }
3410
3411 napi_enable(&tp->napi);
3412
3413 return 0;
hayeswangac718b62013-05-02 16:01:25 +00003414}
3415
hayeswang2dd49e02015-09-07 11:57:44 +08003416static bool delay_autosuspend(struct r8152 *tp)
3417{
3418 bool sw_linking = !!netif_carrier_ok(tp->netdev);
3419 bool hw_linking = !!(rtl8152_get_speed(tp) & LINK_STATUS);
3420
3421 /* This means a linking change occurs and the driver doesn't detect it,
3422 * yet. If the driver has disabled tx/rx and hw is linking on, the
3423 * device wouldn't wake up by receiving any packet.
3424 */
3425 if (work_busy(&tp->schedule.work) || sw_linking != hw_linking)
3426 return true;
3427
3428 /* If the linking down is occurred by nway, the device may miss the
3429 * linking change event. And it wouldn't wake when linking on.
3430 */
3431 if (!sw_linking && tp->rtl_ops.in_nway(tp))
3432 return true;
3433 else
3434 return false;
3435}
3436
hayeswangac718b62013-05-02 16:01:25 +00003437static int rtl8152_suspend(struct usb_interface *intf, pm_message_t message)
3438{
3439 struct r8152 *tp = usb_get_intfdata(intf);
hayeswang6cc69f22014-10-17 16:55:08 +08003440 struct net_device *netdev = tp->netdev;
3441 int ret = 0;
hayeswangac718b62013-05-02 16:01:25 +00003442
hayeswangb5403272014-10-09 18:00:26 +08003443 mutex_lock(&tp->control);
3444
hayeswang6cc69f22014-10-17 16:55:08 +08003445 if (PMSG_IS_AUTO(message)) {
hayeswang2dd49e02015-09-07 11:57:44 +08003446 if (netif_running(netdev) && delay_autosuspend(tp)) {
hayeswang6cc69f22014-10-17 16:55:08 +08003447 ret = -EBUSY;
3448 goto out1;
3449 }
hayeswangac718b62013-05-02 16:01:25 +00003450
hayeswang6cc69f22014-10-17 16:55:08 +08003451 set_bit(SELECTIVE_SUSPEND, &tp->flags);
3452 } else {
3453 netif_device_detach(netdev);
3454 }
3455
hayeswange3bd1a82014-10-29 11:12:17 +08003456 if (netif_running(netdev) && test_bit(WORK_ENABLE, &tp->flags)) {
hayeswangac718b62013-05-02 16:01:25 +00003457 clear_bit(WORK_ENABLE, &tp->flags);
hayeswang40a82912013-08-14 20:54:40 +08003458 usb_kill_urb(tp->intr_urb);
hayeswangd823ab62015-01-12 12:06:23 +08003459 napi_disable(&tp->napi);
hayeswang9a4be1b2014-02-18 21:49:07 +08003460 if (test_bit(SELECTIVE_SUSPEND, &tp->flags)) {
hayeswang445f7f42014-09-23 16:31:47 +08003461 rtl_stop_rx(tp);
hayeswang9a4be1b2014-02-18 21:49:07 +08003462 rtl_runtime_suspend_enable(tp, true);
3463 } else {
hayeswang6cc69f22014-10-17 16:55:08 +08003464 cancel_delayed_work_sync(&tp->schedule);
hayeswang9a4be1b2014-02-18 21:49:07 +08003465 tp->rtl_ops.down(tp);
hayeswang9a4be1b2014-02-18 21:49:07 +08003466 }
hayeswangd823ab62015-01-12 12:06:23 +08003467 napi_enable(&tp->napi);
hayeswangac718b62013-05-02 16:01:25 +00003468 }
hayeswang6cc69f22014-10-17 16:55:08 +08003469out1:
hayeswangb5403272014-10-09 18:00:26 +08003470 mutex_unlock(&tp->control);
3471
hayeswang6cc69f22014-10-17 16:55:08 +08003472 return ret;
hayeswangac718b62013-05-02 16:01:25 +00003473}
3474
3475static int rtl8152_resume(struct usb_interface *intf)
3476{
3477 struct r8152 *tp = usb_get_intfdata(intf);
3478
hayeswangb5403272014-10-09 18:00:26 +08003479 mutex_lock(&tp->control);
3480
hayeswang9a4be1b2014-02-18 21:49:07 +08003481 if (!test_bit(SELECTIVE_SUSPEND, &tp->flags)) {
3482 tp->rtl_ops.init(tp);
3483 netif_device_attach(tp->netdev);
3484 }
3485
Peter Wu90186af2015-12-08 12:17:42 +01003486 if (netif_running(tp->netdev) && tp->netdev->flags & IFF_UP) {
hayeswang9a4be1b2014-02-18 21:49:07 +08003487 if (test_bit(SELECTIVE_SUSPEND, &tp->flags)) {
3488 rtl_runtime_suspend_enable(tp, false);
3489 clear_bit(SELECTIVE_SUSPEND, &tp->flags);
hayeswang41cec842015-07-24 13:54:25 +08003490 napi_disable(&tp->napi);
hayeswang445f7f42014-09-23 16:31:47 +08003491 set_bit(WORK_ENABLE, &tp->flags);
hayeswang51d979f2015-02-06 11:30:47 +08003492 if (netif_carrier_ok(tp->netdev))
hayeswang445f7f42014-09-23 16:31:47 +08003493 rtl_start_rx(tp);
hayeswang41cec842015-07-24 13:54:25 +08003494 napi_enable(&tp->napi);
hayeswang9a4be1b2014-02-18 21:49:07 +08003495 } else {
3496 tp->rtl_ops.up(tp);
3497 rtl8152_set_speed(tp, AUTONEG_ENABLE,
hayeswangb209af92014-08-25 15:53:00 +08003498 tp->mii.supports_gmii ?
3499 SPEED_1000 : SPEED_100,
3500 DUPLEX_FULL);
hayeswang445f7f42014-09-23 16:31:47 +08003501 netif_carrier_off(tp->netdev);
3502 set_bit(WORK_ENABLE, &tp->flags);
hayeswang9a4be1b2014-02-18 21:49:07 +08003503 }
hayeswang40a82912013-08-14 20:54:40 +08003504 usb_submit_urb(tp->intr_urb, GFP_KERNEL);
hayeswang923e1ee2014-10-29 11:12:15 +08003505 } else if (test_bit(SELECTIVE_SUSPEND, &tp->flags)) {
Peter Wu90186af2015-12-08 12:17:42 +01003506 if (tp->netdev->flags & IFF_UP)
3507 rtl_runtime_suspend_enable(tp, false);
hayeswang923e1ee2014-10-29 11:12:15 +08003508 clear_bit(SELECTIVE_SUSPEND, &tp->flags);
hayeswangac718b62013-05-02 16:01:25 +00003509 }
3510
hayeswangb5403272014-10-09 18:00:26 +08003511 mutex_unlock(&tp->control);
3512
hayeswangac718b62013-05-02 16:01:25 +00003513 return 0;
3514}
3515
hayeswang7ec25412016-01-04 14:38:46 +08003516static int rtl8152_reset_resume(struct usb_interface *intf)
3517{
3518 struct r8152 *tp = usb_get_intfdata(intf);
3519
3520 clear_bit(SELECTIVE_SUSPEND, &tp->flags);
3521 return rtl8152_resume(intf);
3522}
3523
hayeswang21ff2e82014-02-18 21:49:06 +08003524static void rtl8152_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
3525{
3526 struct r8152 *tp = netdev_priv(dev);
3527
hayeswang9a4be1b2014-02-18 21:49:07 +08003528 if (usb_autopm_get_interface(tp->intf) < 0)
3529 return;
3530
hayeswang7daed8d2015-07-24 13:54:24 +08003531 if (!rtl_can_wakeup(tp)) {
3532 wol->supported = 0;
3533 wol->wolopts = 0;
3534 } else {
3535 mutex_lock(&tp->control);
3536 wol->supported = WAKE_ANY;
3537 wol->wolopts = __rtl_get_wol(tp);
3538 mutex_unlock(&tp->control);
3539 }
hayeswangb5403272014-10-09 18:00:26 +08003540
hayeswang9a4be1b2014-02-18 21:49:07 +08003541 usb_autopm_put_interface(tp->intf);
hayeswang21ff2e82014-02-18 21:49:06 +08003542}
3543
3544static int rtl8152_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
3545{
3546 struct r8152 *tp = netdev_priv(dev);
hayeswang9a4be1b2014-02-18 21:49:07 +08003547 int ret;
3548
hayeswang7daed8d2015-07-24 13:54:24 +08003549 if (!rtl_can_wakeup(tp))
3550 return -EOPNOTSUPP;
3551
hayeswang9a4be1b2014-02-18 21:49:07 +08003552 ret = usb_autopm_get_interface(tp->intf);
3553 if (ret < 0)
3554 goto out_set_wol;
hayeswang21ff2e82014-02-18 21:49:06 +08003555
hayeswangb5403272014-10-09 18:00:26 +08003556 mutex_lock(&tp->control);
3557
hayeswang21ff2e82014-02-18 21:49:06 +08003558 __rtl_set_wol(tp, wol->wolopts);
3559 tp->saved_wolopts = wol->wolopts & WAKE_ANY;
3560
hayeswangb5403272014-10-09 18:00:26 +08003561 mutex_unlock(&tp->control);
3562
hayeswang9a4be1b2014-02-18 21:49:07 +08003563 usb_autopm_put_interface(tp->intf);
3564
3565out_set_wol:
3566 return ret;
hayeswang21ff2e82014-02-18 21:49:06 +08003567}
3568
hayeswanga5ec27c2014-02-18 21:49:11 +08003569static u32 rtl8152_get_msglevel(struct net_device *dev)
3570{
3571 struct r8152 *tp = netdev_priv(dev);
3572
3573 return tp->msg_enable;
3574}
3575
3576static void rtl8152_set_msglevel(struct net_device *dev, u32 value)
3577{
3578 struct r8152 *tp = netdev_priv(dev);
3579
3580 tp->msg_enable = value;
3581}
3582
hayeswangac718b62013-05-02 16:01:25 +00003583static void rtl8152_get_drvinfo(struct net_device *netdev,
3584 struct ethtool_drvinfo *info)
3585{
3586 struct r8152 *tp = netdev_priv(netdev);
3587
hayeswangb0b46c72014-08-26 10:08:23 +08003588 strlcpy(info->driver, MODULENAME, sizeof(info->driver));
3589 strlcpy(info->version, DRIVER_VERSION, sizeof(info->version));
hayeswangac718b62013-05-02 16:01:25 +00003590 usb_make_path(tp->udev, info->bus_info, sizeof(info->bus_info));
3591}
3592
3593static
3594int rtl8152_get_settings(struct net_device *netdev, struct ethtool_cmd *cmd)
3595{
3596 struct r8152 *tp = netdev_priv(netdev);
hayeswang8d4a4d72014-10-09 18:00:25 +08003597 int ret;
hayeswangac718b62013-05-02 16:01:25 +00003598
3599 if (!tp->mii.mdio_read)
3600 return -EOPNOTSUPP;
3601
hayeswang8d4a4d72014-10-09 18:00:25 +08003602 ret = usb_autopm_get_interface(tp->intf);
3603 if (ret < 0)
3604 goto out;
3605
hayeswangb5403272014-10-09 18:00:26 +08003606 mutex_lock(&tp->control);
3607
hayeswang8d4a4d72014-10-09 18:00:25 +08003608 ret = mii_ethtool_gset(&tp->mii, cmd);
3609
hayeswangb5403272014-10-09 18:00:26 +08003610 mutex_unlock(&tp->control);
3611
hayeswang8d4a4d72014-10-09 18:00:25 +08003612 usb_autopm_put_interface(tp->intf);
3613
3614out:
3615 return ret;
hayeswangac718b62013-05-02 16:01:25 +00003616}
3617
3618static int rtl8152_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
3619{
3620 struct r8152 *tp = netdev_priv(dev);
hayeswang9a4be1b2014-02-18 21:49:07 +08003621 int ret;
hayeswangac718b62013-05-02 16:01:25 +00003622
hayeswang9a4be1b2014-02-18 21:49:07 +08003623 ret = usb_autopm_get_interface(tp->intf);
3624 if (ret < 0)
3625 goto out;
3626
hayeswangb5403272014-10-09 18:00:26 +08003627 mutex_lock(&tp->control);
3628
hayeswang9a4be1b2014-02-18 21:49:07 +08003629 ret = rtl8152_set_speed(tp, cmd->autoneg, cmd->speed, cmd->duplex);
3630
hayeswangb5403272014-10-09 18:00:26 +08003631 mutex_unlock(&tp->control);
3632
hayeswang9a4be1b2014-02-18 21:49:07 +08003633 usb_autopm_put_interface(tp->intf);
3634
3635out:
3636 return ret;
hayeswangac718b62013-05-02 16:01:25 +00003637}
3638
hayeswang4f1d4d52014-03-11 16:24:19 +08003639static const char rtl8152_gstrings[][ETH_GSTRING_LEN] = {
3640 "tx_packets",
3641 "rx_packets",
3642 "tx_errors",
3643 "rx_errors",
3644 "rx_missed",
3645 "align_errors",
3646 "tx_single_collisions",
3647 "tx_multi_collisions",
3648 "rx_unicast",
3649 "rx_broadcast",
3650 "rx_multicast",
3651 "tx_aborted",
3652 "tx_underrun",
3653};
3654
3655static int rtl8152_get_sset_count(struct net_device *dev, int sset)
3656{
3657 switch (sset) {
3658 case ETH_SS_STATS:
3659 return ARRAY_SIZE(rtl8152_gstrings);
3660 default:
3661 return -EOPNOTSUPP;
3662 }
3663}
3664
3665static void rtl8152_get_ethtool_stats(struct net_device *dev,
3666 struct ethtool_stats *stats, u64 *data)
3667{
3668 struct r8152 *tp = netdev_priv(dev);
3669 struct tally_counter tally;
3670
hayeswang0b030242014-07-08 14:49:28 +08003671 if (usb_autopm_get_interface(tp->intf) < 0)
3672 return;
3673
hayeswang4f1d4d52014-03-11 16:24:19 +08003674 generic_ocp_read(tp, PLA_TALLYCNT, sizeof(tally), &tally, MCU_TYPE_PLA);
3675
hayeswang0b030242014-07-08 14:49:28 +08003676 usb_autopm_put_interface(tp->intf);
3677
hayeswang4f1d4d52014-03-11 16:24:19 +08003678 data[0] = le64_to_cpu(tally.tx_packets);
3679 data[1] = le64_to_cpu(tally.rx_packets);
3680 data[2] = le64_to_cpu(tally.tx_errors);
3681 data[3] = le32_to_cpu(tally.rx_errors);
3682 data[4] = le16_to_cpu(tally.rx_missed);
3683 data[5] = le16_to_cpu(tally.align_errors);
3684 data[6] = le32_to_cpu(tally.tx_one_collision);
3685 data[7] = le32_to_cpu(tally.tx_multi_collision);
3686 data[8] = le64_to_cpu(tally.rx_unicast);
3687 data[9] = le64_to_cpu(tally.rx_broadcast);
3688 data[10] = le32_to_cpu(tally.rx_multicast);
3689 data[11] = le16_to_cpu(tally.tx_aborted);
hayeswangf37119c2014-10-28 14:05:51 +08003690 data[12] = le16_to_cpu(tally.tx_underrun);
hayeswang4f1d4d52014-03-11 16:24:19 +08003691}
3692
3693static void rtl8152_get_strings(struct net_device *dev, u32 stringset, u8 *data)
3694{
3695 switch (stringset) {
3696 case ETH_SS_STATS:
3697 memcpy(data, *rtl8152_gstrings, sizeof(rtl8152_gstrings));
3698 break;
3699 }
3700}
3701
hayeswangdf35d282014-09-25 20:54:02 +08003702static int r8152_get_eee(struct r8152 *tp, struct ethtool_eee *eee)
3703{
3704 u32 ocp_data, lp, adv, supported = 0;
3705 u16 val;
3706
3707 val = r8152_mmd_read(tp, MDIO_MMD_PCS, MDIO_PCS_EEE_ABLE);
3708 supported = mmd_eee_cap_to_ethtool_sup_t(val);
3709
3710 val = r8152_mmd_read(tp, MDIO_MMD_AN, MDIO_AN_EEE_ADV);
3711 adv = mmd_eee_adv_to_ethtool_adv_t(val);
3712
3713 val = r8152_mmd_read(tp, MDIO_MMD_AN, MDIO_AN_EEE_LPABLE);
3714 lp = mmd_eee_adv_to_ethtool_adv_t(val);
3715
3716 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_EEE_CR);
3717 ocp_data &= EEE_RX_EN | EEE_TX_EN;
3718
3719 eee->eee_enabled = !!ocp_data;
3720 eee->eee_active = !!(supported & adv & lp);
3721 eee->supported = supported;
3722 eee->advertised = adv;
3723 eee->lp_advertised = lp;
3724
3725 return 0;
3726}
3727
3728static int r8152_set_eee(struct r8152 *tp, struct ethtool_eee *eee)
3729{
3730 u16 val = ethtool_adv_to_mmd_eee_adv_t(eee->advertised);
3731
3732 r8152_eee_en(tp, eee->eee_enabled);
3733
3734 if (!eee->eee_enabled)
3735 val = 0;
3736
3737 r8152_mmd_write(tp, MDIO_MMD_AN, MDIO_AN_EEE_ADV, val);
3738
3739 return 0;
3740}
3741
3742static int r8153_get_eee(struct r8152 *tp, struct ethtool_eee *eee)
3743{
3744 u32 ocp_data, lp, adv, supported = 0;
3745 u16 val;
3746
3747 val = ocp_reg_read(tp, OCP_EEE_ABLE);
3748 supported = mmd_eee_cap_to_ethtool_sup_t(val);
3749
3750 val = ocp_reg_read(tp, OCP_EEE_ADV);
3751 adv = mmd_eee_adv_to_ethtool_adv_t(val);
3752
3753 val = ocp_reg_read(tp, OCP_EEE_LPABLE);
3754 lp = mmd_eee_adv_to_ethtool_adv_t(val);
3755
3756 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_EEE_CR);
3757 ocp_data &= EEE_RX_EN | EEE_TX_EN;
3758
3759 eee->eee_enabled = !!ocp_data;
3760 eee->eee_active = !!(supported & adv & lp);
3761 eee->supported = supported;
3762 eee->advertised = adv;
3763 eee->lp_advertised = lp;
3764
3765 return 0;
3766}
3767
3768static int r8153_set_eee(struct r8152 *tp, struct ethtool_eee *eee)
3769{
3770 u16 val = ethtool_adv_to_mmd_eee_adv_t(eee->advertised);
3771
3772 r8153_eee_en(tp, eee->eee_enabled);
3773
3774 if (!eee->eee_enabled)
3775 val = 0;
3776
3777 ocp_reg_write(tp, OCP_EEE_ADV, val);
3778
3779 return 0;
3780}
3781
3782static int
3783rtl_ethtool_get_eee(struct net_device *net, struct ethtool_eee *edata)
3784{
3785 struct r8152 *tp = netdev_priv(net);
3786 int ret;
3787
3788 ret = usb_autopm_get_interface(tp->intf);
3789 if (ret < 0)
3790 goto out;
3791
hayeswangb5403272014-10-09 18:00:26 +08003792 mutex_lock(&tp->control);
3793
hayeswangdf35d282014-09-25 20:54:02 +08003794 ret = tp->rtl_ops.eee_get(tp, edata);
3795
hayeswangb5403272014-10-09 18:00:26 +08003796 mutex_unlock(&tp->control);
3797
hayeswangdf35d282014-09-25 20:54:02 +08003798 usb_autopm_put_interface(tp->intf);
3799
3800out:
3801 return ret;
3802}
3803
3804static int
3805rtl_ethtool_set_eee(struct net_device *net, struct ethtool_eee *edata)
3806{
3807 struct r8152 *tp = netdev_priv(net);
3808 int ret;
3809
3810 ret = usb_autopm_get_interface(tp->intf);
3811 if (ret < 0)
3812 goto out;
3813
hayeswangb5403272014-10-09 18:00:26 +08003814 mutex_lock(&tp->control);
3815
hayeswangdf35d282014-09-25 20:54:02 +08003816 ret = tp->rtl_ops.eee_set(tp, edata);
hayeswang9d31a7b2014-10-06 10:36:04 +08003817 if (!ret)
3818 ret = mii_nway_restart(&tp->mii);
hayeswangdf35d282014-09-25 20:54:02 +08003819
hayeswangb5403272014-10-09 18:00:26 +08003820 mutex_unlock(&tp->control);
3821
hayeswangdf35d282014-09-25 20:54:02 +08003822 usb_autopm_put_interface(tp->intf);
3823
3824out:
3825 return ret;
3826}
3827
hayeswang8884f502014-10-28 14:05:52 +08003828static int rtl8152_nway_reset(struct net_device *dev)
3829{
3830 struct r8152 *tp = netdev_priv(dev);
3831 int ret;
3832
3833 ret = usb_autopm_get_interface(tp->intf);
3834 if (ret < 0)
3835 goto out;
3836
3837 mutex_lock(&tp->control);
3838
3839 ret = mii_nway_restart(&tp->mii);
3840
3841 mutex_unlock(&tp->control);
3842
3843 usb_autopm_put_interface(tp->intf);
3844
3845out:
3846 return ret;
3847}
3848
hayeswangefb3dd82015-02-12 14:33:48 +08003849static int rtl8152_get_coalesce(struct net_device *netdev,
3850 struct ethtool_coalesce *coalesce)
3851{
3852 struct r8152 *tp = netdev_priv(netdev);
3853
3854 switch (tp->version) {
3855 case RTL_VER_01:
3856 case RTL_VER_02:
3857 return -EOPNOTSUPP;
3858 default:
3859 break;
3860 }
3861
3862 coalesce->rx_coalesce_usecs = tp->coalesce;
3863
3864 return 0;
3865}
3866
3867static int rtl8152_set_coalesce(struct net_device *netdev,
3868 struct ethtool_coalesce *coalesce)
3869{
3870 struct r8152 *tp = netdev_priv(netdev);
3871 int ret;
3872
3873 switch (tp->version) {
3874 case RTL_VER_01:
3875 case RTL_VER_02:
3876 return -EOPNOTSUPP;
3877 default:
3878 break;
3879 }
3880
3881 if (coalesce->rx_coalesce_usecs > COALESCE_SLOW)
3882 return -EINVAL;
3883
3884 ret = usb_autopm_get_interface(tp->intf);
3885 if (ret < 0)
3886 return ret;
3887
3888 mutex_lock(&tp->control);
3889
3890 if (tp->coalesce != coalesce->rx_coalesce_usecs) {
3891 tp->coalesce = coalesce->rx_coalesce_usecs;
3892
3893 if (netif_running(tp->netdev) && netif_carrier_ok(netdev))
3894 r8153_set_rx_early_timeout(tp);
3895 }
3896
3897 mutex_unlock(&tp->control);
3898
3899 usb_autopm_put_interface(tp->intf);
3900
3901 return ret;
3902}
3903
hayeswangac718b62013-05-02 16:01:25 +00003904static struct ethtool_ops ops = {
3905 .get_drvinfo = rtl8152_get_drvinfo,
3906 .get_settings = rtl8152_get_settings,
3907 .set_settings = rtl8152_set_settings,
3908 .get_link = ethtool_op_get_link,
hayeswang8884f502014-10-28 14:05:52 +08003909 .nway_reset = rtl8152_nway_reset,
hayeswanga5ec27c2014-02-18 21:49:11 +08003910 .get_msglevel = rtl8152_get_msglevel,
3911 .set_msglevel = rtl8152_set_msglevel,
hayeswang21ff2e82014-02-18 21:49:06 +08003912 .get_wol = rtl8152_get_wol,
3913 .set_wol = rtl8152_set_wol,
hayeswang4f1d4d52014-03-11 16:24:19 +08003914 .get_strings = rtl8152_get_strings,
3915 .get_sset_count = rtl8152_get_sset_count,
3916 .get_ethtool_stats = rtl8152_get_ethtool_stats,
hayeswangefb3dd82015-02-12 14:33:48 +08003917 .get_coalesce = rtl8152_get_coalesce,
3918 .set_coalesce = rtl8152_set_coalesce,
hayeswangdf35d282014-09-25 20:54:02 +08003919 .get_eee = rtl_ethtool_get_eee,
3920 .set_eee = rtl_ethtool_set_eee,
hayeswangac718b62013-05-02 16:01:25 +00003921};
3922
3923static int rtl8152_ioctl(struct net_device *netdev, struct ifreq *rq, int cmd)
3924{
3925 struct r8152 *tp = netdev_priv(netdev);
3926 struct mii_ioctl_data *data = if_mii(rq);
hayeswang9a4be1b2014-02-18 21:49:07 +08003927 int res;
3928
hayeswang68714382014-04-11 17:54:31 +08003929 if (test_bit(RTL8152_UNPLUG, &tp->flags))
3930 return -ENODEV;
3931
hayeswang9a4be1b2014-02-18 21:49:07 +08003932 res = usb_autopm_get_interface(tp->intf);
3933 if (res < 0)
3934 goto out;
hayeswangac718b62013-05-02 16:01:25 +00003935
3936 switch (cmd) {
3937 case SIOCGMIIPHY:
3938 data->phy_id = R8152_PHY_ID; /* Internal PHY */
3939 break;
3940
3941 case SIOCGMIIREG:
hayeswangb5403272014-10-09 18:00:26 +08003942 mutex_lock(&tp->control);
hayeswangac718b62013-05-02 16:01:25 +00003943 data->val_out = r8152_mdio_read(tp, data->reg_num);
hayeswangb5403272014-10-09 18:00:26 +08003944 mutex_unlock(&tp->control);
hayeswangac718b62013-05-02 16:01:25 +00003945 break;
3946
3947 case SIOCSMIIREG:
3948 if (!capable(CAP_NET_ADMIN)) {
3949 res = -EPERM;
3950 break;
3951 }
hayeswangb5403272014-10-09 18:00:26 +08003952 mutex_lock(&tp->control);
hayeswangac718b62013-05-02 16:01:25 +00003953 r8152_mdio_write(tp, data->reg_num, data->val_in);
hayeswangb5403272014-10-09 18:00:26 +08003954 mutex_unlock(&tp->control);
hayeswangac718b62013-05-02 16:01:25 +00003955 break;
3956
3957 default:
3958 res = -EOPNOTSUPP;
3959 }
3960
hayeswang9a4be1b2014-02-18 21:49:07 +08003961 usb_autopm_put_interface(tp->intf);
3962
3963out:
hayeswangac718b62013-05-02 16:01:25 +00003964 return res;
3965}
3966
hayeswang69b4b7a2014-07-10 10:58:54 +08003967static int rtl8152_change_mtu(struct net_device *dev, int new_mtu)
3968{
3969 struct r8152 *tp = netdev_priv(dev);
hayeswang396e2e22015-02-12 14:33:47 +08003970 int ret;
hayeswang69b4b7a2014-07-10 10:58:54 +08003971
3972 switch (tp->version) {
3973 case RTL_VER_01:
3974 case RTL_VER_02:
3975 return eth_change_mtu(dev, new_mtu);
3976 default:
3977 break;
3978 }
3979
3980 if (new_mtu < 68 || new_mtu > RTL8153_MAX_MTU)
3981 return -EINVAL;
3982
hayeswang396e2e22015-02-12 14:33:47 +08003983 ret = usb_autopm_get_interface(tp->intf);
3984 if (ret < 0)
3985 return ret;
3986
3987 mutex_lock(&tp->control);
3988
hayeswang69b4b7a2014-07-10 10:58:54 +08003989 dev->mtu = new_mtu;
3990
hayeswang396e2e22015-02-12 14:33:47 +08003991 if (netif_running(dev) && netif_carrier_ok(dev))
3992 r8153_set_rx_early_size(tp);
3993
3994 mutex_unlock(&tp->control);
3995
3996 usb_autopm_put_interface(tp->intf);
3997
3998 return ret;
hayeswang69b4b7a2014-07-10 10:58:54 +08003999}
4000
hayeswangac718b62013-05-02 16:01:25 +00004001static const struct net_device_ops rtl8152_netdev_ops = {
4002 .ndo_open = rtl8152_open,
4003 .ndo_stop = rtl8152_close,
4004 .ndo_do_ioctl = rtl8152_ioctl,
4005 .ndo_start_xmit = rtl8152_start_xmit,
4006 .ndo_tx_timeout = rtl8152_tx_timeout,
hayeswangc5554292014-09-12 10:43:11 +08004007 .ndo_set_features = rtl8152_set_features,
hayeswangac718b62013-05-02 16:01:25 +00004008 .ndo_set_rx_mode = rtl8152_set_rx_mode,
4009 .ndo_set_mac_address = rtl8152_set_mac_address,
hayeswang69b4b7a2014-07-10 10:58:54 +08004010 .ndo_change_mtu = rtl8152_change_mtu,
hayeswangac718b62013-05-02 16:01:25 +00004011 .ndo_validate_addr = eth_validate_addr,
hayeswanga5e31252015-01-06 17:41:58 +08004012 .ndo_features_check = rtl8152_features_check,
hayeswangac718b62013-05-02 16:01:25 +00004013};
4014
4015static void r8152b_get_version(struct r8152 *tp)
4016{
4017 u32 ocp_data;
4018 u16 version;
4019
4020 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_TCR1);
4021 version = (u16)(ocp_data & VERSION_MASK);
4022
4023 switch (version) {
4024 case 0x4c00:
4025 tp->version = RTL_VER_01;
4026 break;
4027 case 0x4c10:
4028 tp->version = RTL_VER_02;
4029 break;
hayeswang43779f82014-01-02 11:25:10 +08004030 case 0x5c00:
4031 tp->version = RTL_VER_03;
4032 tp->mii.supports_gmii = 1;
4033 break;
4034 case 0x5c10:
4035 tp->version = RTL_VER_04;
4036 tp->mii.supports_gmii = 1;
4037 break;
4038 case 0x5c20:
4039 tp->version = RTL_VER_05;
4040 tp->mii.supports_gmii = 1;
4041 break;
hayeswangfb02eb42015-07-22 15:27:41 +08004042 case 0x5c30:
4043 tp->version = RTL_VER_06;
4044 tp->mii.supports_gmii = 1;
4045 break;
hayeswangac718b62013-05-02 16:01:25 +00004046 default:
4047 netif_info(tp, probe, tp->netdev,
4048 "Unknown version 0x%04x\n", version);
4049 break;
4050 }
4051}
4052
hayeswange3fe0b12014-01-02 11:22:39 +08004053static void rtl8152_unload(struct r8152 *tp)
4054{
hayeswang68714382014-04-11 17:54:31 +08004055 if (test_bit(RTL8152_UNPLUG, &tp->flags))
4056 return;
4057
hayeswang00a5e362014-02-18 21:48:59 +08004058 if (tp->version != RTL_VER_01)
4059 r8152_power_cut_en(tp, true);
hayeswange3fe0b12014-01-02 11:22:39 +08004060}
4061
hayeswang43779f82014-01-02 11:25:10 +08004062static void rtl8153_unload(struct r8152 *tp)
4063{
hayeswang68714382014-04-11 17:54:31 +08004064 if (test_bit(RTL8152_UNPLUG, &tp->flags))
4065 return;
4066
hayeswang49be1722014-10-01 13:25:11 +08004067 r8153_power_cut_en(tp, false);
hayeswang43779f82014-01-02 11:25:10 +08004068}
4069
hayeswang55b65472014-11-06 12:47:39 +08004070static int rtl_ops_init(struct r8152 *tp)
hayeswangc81229c2014-01-02 11:22:42 +08004071{
4072 struct rtl_ops *ops = &tp->rtl_ops;
hayeswang55b65472014-11-06 12:47:39 +08004073 int ret = 0;
hayeswangc81229c2014-01-02 11:22:42 +08004074
hayeswang55b65472014-11-06 12:47:39 +08004075 switch (tp->version) {
4076 case RTL_VER_01:
4077 case RTL_VER_02:
4078 ops->init = r8152b_init;
4079 ops->enable = rtl8152_enable;
4080 ops->disable = rtl8152_disable;
4081 ops->up = rtl8152_up;
4082 ops->down = rtl8152_down;
4083 ops->unload = rtl8152_unload;
4084 ops->eee_get = r8152_get_eee;
4085 ops->eee_set = r8152_set_eee;
hayeswang2dd49e02015-09-07 11:57:44 +08004086 ops->in_nway = rtl8152_in_nway;
hayeswang43779f82014-01-02 11:25:10 +08004087 break;
4088
hayeswang55b65472014-11-06 12:47:39 +08004089 case RTL_VER_03:
4090 case RTL_VER_04:
4091 case RTL_VER_05:
hayeswangfb02eb42015-07-22 15:27:41 +08004092 case RTL_VER_06:
hayeswang55b65472014-11-06 12:47:39 +08004093 ops->init = r8153_init;
4094 ops->enable = rtl8153_enable;
4095 ops->disable = rtl8153_disable;
4096 ops->up = rtl8153_up;
4097 ops->down = rtl8153_down;
4098 ops->unload = rtl8153_unload;
4099 ops->eee_get = r8153_get_eee;
4100 ops->eee_set = r8153_set_eee;
hayeswang2dd49e02015-09-07 11:57:44 +08004101 ops->in_nway = rtl8153_in_nway;
hayeswangc81229c2014-01-02 11:22:42 +08004102 break;
4103
4104 default:
hayeswang55b65472014-11-06 12:47:39 +08004105 ret = -ENODEV;
4106 netif_err(tp, probe, tp->netdev, "Unknown Device\n");
hayeswangc81229c2014-01-02 11:22:42 +08004107 break;
4108 }
4109
4110 return ret;
4111}
4112
hayeswangac718b62013-05-02 16:01:25 +00004113static int rtl8152_probe(struct usb_interface *intf,
4114 const struct usb_device_id *id)
4115{
4116 struct usb_device *udev = interface_to_usbdev(intf);
4117 struct r8152 *tp;
4118 struct net_device *netdev;
hayeswangebc2ec482013-08-14 20:54:38 +08004119 int ret;
hayeswangac718b62013-05-02 16:01:25 +00004120
hayeswang10c32712014-03-04 20:47:48 +08004121 if (udev->actconfig->desc.bConfigurationValue != 1) {
4122 usb_driver_set_configuration(udev, 1);
4123 return -ENODEV;
4124 }
4125
4126 usb_reset_device(udev);
hayeswangac718b62013-05-02 16:01:25 +00004127 netdev = alloc_etherdev(sizeof(struct r8152));
4128 if (!netdev) {
Hayes Wang4a8deae2014-01-07 11:18:22 +08004129 dev_err(&intf->dev, "Out of memory\n");
hayeswangac718b62013-05-02 16:01:25 +00004130 return -ENOMEM;
4131 }
4132
hayeswangebc2ec482013-08-14 20:54:38 +08004133 SET_NETDEV_DEV(netdev, &intf->dev);
hayeswangac718b62013-05-02 16:01:25 +00004134 tp = netdev_priv(netdev);
4135 tp->msg_enable = 0x7FFF;
4136
hayeswange3ad4122014-01-06 17:08:42 +08004137 tp->udev = udev;
4138 tp->netdev = netdev;
4139 tp->intf = intf;
4140
hayeswang82cf94c2014-11-06 12:47:38 +08004141 r8152b_get_version(tp);
hayeswang55b65472014-11-06 12:47:39 +08004142 ret = rtl_ops_init(tp);
hayeswang31ca1de2014-01-06 17:08:43 +08004143 if (ret)
4144 goto out;
hayeswangc81229c2014-01-02 11:22:42 +08004145
hayeswangb5403272014-10-09 18:00:26 +08004146 mutex_init(&tp->control);
hayeswangac718b62013-05-02 16:01:25 +00004147 INIT_DELAYED_WORK(&tp->schedule, rtl_work_func_t);
4148
hayeswangac718b62013-05-02 16:01:25 +00004149 netdev->netdev_ops = &rtl8152_netdev_ops;
4150 netdev->watchdog_timeo = RTL8152_TX_TIMEOUT;
hayeswang5bd23882013-08-14 20:54:39 +08004151
hayeswang60c89072014-03-07 11:04:39 +08004152 netdev->features |= NETIF_F_RXCSUM | NETIF_F_IP_CSUM | NETIF_F_SG |
hayeswang6128d1bb2014-03-07 11:04:40 +08004153 NETIF_F_TSO | NETIF_F_FRAGLIST | NETIF_F_IPV6_CSUM |
hayeswangc5554292014-09-12 10:43:11 +08004154 NETIF_F_TSO6 | NETIF_F_HW_VLAN_CTAG_RX |
4155 NETIF_F_HW_VLAN_CTAG_TX;
hayeswang60c89072014-03-07 11:04:39 +08004156 netdev->hw_features = NETIF_F_RXCSUM | NETIF_F_IP_CSUM | NETIF_F_SG |
hayeswang6128d1bb2014-03-07 11:04:40 +08004157 NETIF_F_TSO | NETIF_F_FRAGLIST |
hayeswangc5554292014-09-12 10:43:11 +08004158 NETIF_F_IPV6_CSUM | NETIF_F_TSO6 |
hayeswangccc39fa2015-02-06 11:30:49 +08004159 NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HW_VLAN_CTAG_TX;
hayeswangc5554292014-09-12 10:43:11 +08004160 netdev->vlan_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO |
4161 NETIF_F_HIGHDMA | NETIF_F_FRAGLIST |
4162 NETIF_F_IPV6_CSUM | NETIF_F_TSO6;
hayeswangdb8515e2014-03-06 15:07:16 +08004163
Wilfried Klaebe7ad24ea2014-05-11 00:12:32 +00004164 netdev->ethtool_ops = &ops;
hayeswang60c89072014-03-07 11:04:39 +08004165 netif_set_gso_max_size(netdev, RTL_LIMITED_TSO_SIZE);
hayeswangac718b62013-05-02 16:01:25 +00004166
4167 tp->mii.dev = netdev;
4168 tp->mii.mdio_read = read_mii_word;
4169 tp->mii.mdio_write = write_mii_word;
4170 tp->mii.phy_id_mask = 0x3f;
4171 tp->mii.reg_num_mask = 0x1f;
4172 tp->mii.phy_id = R8152_PHY_ID;
hayeswangac718b62013-05-02 16:01:25 +00004173
hayeswang464ec102015-02-12 14:33:46 +08004174 switch (udev->speed) {
4175 case USB_SPEED_SUPER:
4176 tp->coalesce = COALESCE_SUPER;
4177 break;
4178 case USB_SPEED_HIGH:
4179 tp->coalesce = COALESCE_HIGH;
4180 break;
4181 default:
4182 tp->coalesce = COALESCE_SLOW;
4183 break;
4184 }
4185
hayeswang9a4be1b2014-02-18 21:49:07 +08004186 intf->needs_remote_wakeup = 1;
4187
hayeswangc81229c2014-01-02 11:22:42 +08004188 tp->rtl_ops.init(tp);
hayeswangac718b62013-05-02 16:01:25 +00004189 set_ethernet_addr(tp);
4190
hayeswangac718b62013-05-02 16:01:25 +00004191 usb_set_intfdata(intf, tp);
hayeswangd823ab62015-01-12 12:06:23 +08004192 netif_napi_add(netdev, &tp->napi, r8152_poll, RTL8152_NAPI_WEIGHT);
hayeswangac718b62013-05-02 16:01:25 +00004193
hayeswangebc2ec482013-08-14 20:54:38 +08004194 ret = register_netdev(netdev);
4195 if (ret != 0) {
Hayes Wang4a8deae2014-01-07 11:18:22 +08004196 netif_err(tp, probe, netdev, "couldn't register the device\n");
hayeswangebc2ec482013-08-14 20:54:38 +08004197 goto out1;
hayeswangac718b62013-05-02 16:01:25 +00004198 }
4199
hayeswang7daed8d2015-07-24 13:54:24 +08004200 if (!rtl_can_wakeup(tp))
4201 __rtl_set_wol(tp, 0);
4202
hayeswang21ff2e82014-02-18 21:49:06 +08004203 tp->saved_wolopts = __rtl_get_wol(tp);
4204 if (tp->saved_wolopts)
4205 device_set_wakeup_enable(&udev->dev, true);
4206 else
4207 device_set_wakeup_enable(&udev->dev, false);
4208
Hayes Wang4a8deae2014-01-07 11:18:22 +08004209 netif_info(tp, probe, netdev, "%s\n", DRIVER_VERSION);
hayeswangac718b62013-05-02 16:01:25 +00004210
4211 return 0;
4212
hayeswangac718b62013-05-02 16:01:25 +00004213out1:
hayeswangd823ab62015-01-12 12:06:23 +08004214 netif_napi_del(&tp->napi);
hayeswangebc2ec482013-08-14 20:54:38 +08004215 usb_set_intfdata(intf, NULL);
hayeswangac718b62013-05-02 16:01:25 +00004216out:
4217 free_netdev(netdev);
hayeswangebc2ec482013-08-14 20:54:38 +08004218 return ret;
hayeswangac718b62013-05-02 16:01:25 +00004219}
4220
hayeswangac718b62013-05-02 16:01:25 +00004221static void rtl8152_disconnect(struct usb_interface *intf)
4222{
4223 struct r8152 *tp = usb_get_intfdata(intf);
4224
4225 usb_set_intfdata(intf, NULL);
4226 if (tp) {
hayeswangf561de32014-09-30 16:48:01 +08004227 struct usb_device *udev = tp->udev;
4228
4229 if (udev->state == USB_STATE_NOTATTACHED)
4230 set_bit(RTL8152_UNPLUG, &tp->flags);
4231
hayeswangd823ab62015-01-12 12:06:23 +08004232 netif_napi_del(&tp->napi);
hayeswangac718b62013-05-02 16:01:25 +00004233 unregister_netdev(tp->netdev);
hayeswangc81229c2014-01-02 11:22:42 +08004234 tp->rtl_ops.unload(tp);
hayeswangac718b62013-05-02 16:01:25 +00004235 free_netdev(tp->netdev);
4236 }
4237}
4238
hayeswangd9a28c52014-12-04 10:43:11 +08004239#define REALTEK_USB_DEVICE(vend, prod) \
4240 .match_flags = USB_DEVICE_ID_MATCH_DEVICE | \
4241 USB_DEVICE_ID_MATCH_INT_CLASS, \
4242 .idVendor = (vend), \
4243 .idProduct = (prod), \
4244 .bInterfaceClass = USB_CLASS_VENDOR_SPEC \
4245}, \
4246{ \
4247 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO | \
4248 USB_DEVICE_ID_MATCH_DEVICE, \
4249 .idVendor = (vend), \
4250 .idProduct = (prod), \
4251 .bInterfaceClass = USB_CLASS_COMM, \
4252 .bInterfaceSubClass = USB_CDC_SUBCLASS_ETHERNET, \
4253 .bInterfaceProtocol = USB_CDC_PROTO_NONE
4254
hayeswangac718b62013-05-02 16:01:25 +00004255/* table of devices that work with this driver */
4256static struct usb_device_id rtl8152_table[] = {
hayeswangd9a28c52014-12-04 10:43:11 +08004257 {REALTEK_USB_DEVICE(VENDOR_ID_REALTEK, 0x8152)},
4258 {REALTEK_USB_DEVICE(VENDOR_ID_REALTEK, 0x8153)},
4259 {REALTEK_USB_DEVICE(VENDOR_ID_SAMSUNG, 0xa101)},
Christian Hesse347eec32015-03-31 14:10:07 +02004260 {REALTEK_USB_DEVICE(VENDOR_ID_LENOVO, 0x7205)},
Vasily Titskiy1006da12015-05-06 10:31:21 -04004261 {REALTEK_USB_DEVICE(VENDOR_ID_LENOVO, 0x304f)},
Zheng Liud065c3c12015-07-07 13:54:12 -07004262 {REALTEK_USB_DEVICE(VENDOR_ID_NVIDIA, 0x09ff)},
hayeswangac718b62013-05-02 16:01:25 +00004263 {}
4264};
4265
4266MODULE_DEVICE_TABLE(usb, rtl8152_table);
4267
4268static struct usb_driver rtl8152_driver = {
4269 .name = MODULENAME,
hayeswangebc2ec482013-08-14 20:54:38 +08004270 .id_table = rtl8152_table,
hayeswangac718b62013-05-02 16:01:25 +00004271 .probe = rtl8152_probe,
4272 .disconnect = rtl8152_disconnect,
hayeswangac718b62013-05-02 16:01:25 +00004273 .suspend = rtl8152_suspend,
hayeswangebc2ec482013-08-14 20:54:38 +08004274 .resume = rtl8152_resume,
hayeswang7ec25412016-01-04 14:38:46 +08004275 .reset_resume = rtl8152_reset_resume,
hayeswange5011392015-07-29 20:39:08 +08004276 .pre_reset = rtl8152_pre_reset,
4277 .post_reset = rtl8152_post_reset,
hayeswang9a4be1b2014-02-18 21:49:07 +08004278 .supports_autosuspend = 1,
hayeswanga6347822014-02-18 21:49:10 +08004279 .disable_hub_initiated_lpm = 1,
hayeswangac718b62013-05-02 16:01:25 +00004280};
4281
Sachin Kamatb4236daa2013-05-16 17:48:08 +00004282module_usb_driver(rtl8152_driver);
hayeswangac718b62013-05-02 16:01:25 +00004283
4284MODULE_AUTHOR(DRIVER_AUTHOR);
4285MODULE_DESCRIPTION(DRIVER_DESC);
4286MODULE_LICENSE("GPL");