r8152.c 98.2 KB
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/*
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 *  Copyright (c) 2014 Realtek Semiconductor Corp. All rights reserved.
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 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * version 2 as published by the Free Software Foundation.
 *
 */

#include <linux/signal.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/mii.h>
#include <linux/ethtool.h>
#include <linux/usb.h>
#include <linux/crc32.h>
#include <linux/if_vlan.h>
#include <linux/uaccess.h>
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#include <linux/list.h>
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#include <linux/ip.h>
#include <linux/ipv6.h>
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#include <net/ip6_checksum.h>
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#include <uapi/linux/mdio.h>
#include <linux/mdio.h>
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#include <linux/usb/cdc.h>
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#include <linux/suspend.h>
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/* Information for net-next */
#define NETNEXT_VERSION		"08"

/* Information for net */
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#define NET_VERSION		"4"
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#define DRIVER_VERSION		"v1." NETNEXT_VERSION "." NET_VERSION
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#define DRIVER_AUTHOR "Realtek linux nic maintainers <nic_swsd@realtek.com>"
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#define DRIVER_DESC "Realtek RTL8152/RTL8153 Based USB Ethernet Adapters"
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#define MODULENAME "r8152"

#define R8152_PHY_ID		32

#define PLA_IDR			0xc000
#define PLA_RCR			0xc010
#define PLA_RMS			0xc016
#define PLA_RXFIFO_CTRL0	0xc0a0
#define PLA_RXFIFO_CTRL1	0xc0a4
#define PLA_RXFIFO_CTRL2	0xc0a8
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#define PLA_DMY_REG0		0xc0b0
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#define PLA_FMC			0xc0b4
#define PLA_CFG_WOL		0xc0b6
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#define PLA_TEREDO_CFG		0xc0bc
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#define PLA_MAR			0xcd00
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#define PLA_BACKUP		0xd000
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#define PAL_BDC_CR		0xd1a0
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#define PLA_TEREDO_TIMER	0xd2cc
#define PLA_REALWOW_TIMER	0xd2e8
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#define PLA_LEDSEL		0xdd90
#define PLA_LED_FEATURE		0xdd92
#define PLA_PHYAR		0xde00
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#define PLA_BOOT_CTRL		0xe004
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#define PLA_GPHY_INTR_IMR	0xe022
#define PLA_EEE_CR		0xe040
#define PLA_EEEP_CR		0xe080
#define PLA_MAC_PWR_CTRL	0xe0c0
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#define PLA_MAC_PWR_CTRL2	0xe0ca
#define PLA_MAC_PWR_CTRL3	0xe0cc
#define PLA_MAC_PWR_CTRL4	0xe0ce
#define PLA_WDT6_CTRL		0xe428
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#define PLA_TCR0		0xe610
#define PLA_TCR1		0xe612
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#define PLA_MTPS		0xe615
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#define PLA_TXFIFO_CTRL		0xe618
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#define PLA_RSTTALLY		0xe800
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#define PLA_CR			0xe813
#define PLA_CRWECR		0xe81c
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#define PLA_CONFIG12		0xe81e	/* CONFIG1, CONFIG2 */
#define PLA_CONFIG34		0xe820	/* CONFIG3, CONFIG4 */
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#define PLA_CONFIG5		0xe822
#define PLA_PHY_PWR		0xe84c
#define PLA_OOB_CTRL		0xe84f
#define PLA_CPCR		0xe854
#define PLA_MISC_0		0xe858
#define PLA_MISC_1		0xe85a
#define PLA_OCP_GPHY_BASE	0xe86c
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#define PLA_TALLYCNT		0xe890
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#define PLA_SFF_STS_7		0xe8de
#define PLA_PHYSTATUS		0xe908
#define PLA_BP_BA		0xfc26
#define PLA_BP_0		0xfc28
#define PLA_BP_1		0xfc2a
#define PLA_BP_2		0xfc2c
#define PLA_BP_3		0xfc2e
#define PLA_BP_4		0xfc30
#define PLA_BP_5		0xfc32
#define PLA_BP_6		0xfc34
#define PLA_BP_7		0xfc36
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#define PLA_BP_EN		0xfc38
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#define USB_USB2PHY		0xb41e
#define USB_SSPHYLINK2		0xb428
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#define USB_U2P3_CTRL		0xb460
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#define USB_CSR_DUMMY1		0xb464
#define USB_CSR_DUMMY2		0xb466
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#define USB_DEV_STAT		0xb808
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#define USB_CONNECT_TIMER	0xcbf8
#define USB_BURST_SIZE		0xcfc0
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#define USB_USB_CTRL		0xd406
#define USB_PHY_CTRL		0xd408
#define USB_TX_AGG		0xd40a
#define USB_RX_BUF_TH		0xd40c
#define USB_USB_TIMER		0xd428
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#define USB_RX_EARLY_TIMEOUT	0xd42c
#define USB_RX_EARLY_SIZE	0xd42e
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#define USB_PM_CTRL_STATUS	0xd432
#define USB_TX_DMA		0xd434
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#define USB_TOLERANCE		0xd490
#define USB_LPM_CTRL		0xd41a
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#define USB_BMU_RESET		0xd4b0
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#define USB_UPS_CTRL		0xd800
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#define USB_MISC_0		0xd81a
#define USB_POWER_CUT		0xd80a
#define USB_AFE_CTRL2		0xd824
#define USB_WDT11_CTRL		0xe43c
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#define USB_BP_BA		0xfc26
#define USB_BP_0		0xfc28
#define USB_BP_1		0xfc2a
#define USB_BP_2		0xfc2c
#define USB_BP_3		0xfc2e
#define USB_BP_4		0xfc30
#define USB_BP_5		0xfc32
#define USB_BP_6		0xfc34
#define USB_BP_7		0xfc36
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#define USB_BP_EN		0xfc38
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/* OCP Registers */
#define OCP_ALDPS_CONFIG	0x2010
#define OCP_EEE_CONFIG1		0x2080
#define OCP_EEE_CONFIG2		0x2092
#define OCP_EEE_CONFIG3		0x2094
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#define OCP_BASE_MII		0xa400
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#define OCP_EEE_AR		0xa41a
#define OCP_EEE_DATA		0xa41c
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#define OCP_PHY_STATUS		0xa420
#define OCP_POWER_CFG		0xa430
#define OCP_EEE_CFG		0xa432
#define OCP_SRAM_ADDR		0xa436
#define OCP_SRAM_DATA		0xa438
#define OCP_DOWN_SPEED		0xa442
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#define OCP_EEE_ABLE		0xa5c4
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#define OCP_EEE_ADV		0xa5d0
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#define OCP_EEE_LPABLE		0xa5d2
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#define OCP_PHY_STATE		0xa708		/* nway state for 8153 */
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#define OCP_ADC_CFG		0xbc06

/* SRAM Register */
#define SRAM_LPF_CFG		0x8012
#define SRAM_10M_AMP1		0x8080
#define SRAM_10M_AMP2		0x8082
#define SRAM_IMPEDANCE		0x8084
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/* PLA_RCR */
#define RCR_AAP			0x00000001
#define RCR_APM			0x00000002
#define RCR_AM			0x00000004
#define RCR_AB			0x00000008
#define RCR_ACPT_ALL		(RCR_AAP | RCR_APM | RCR_AM | RCR_AB)

/* PLA_RXFIFO_CTRL0 */
#define RXFIFO_THR1_NORMAL	0x00080002
#define RXFIFO_THR1_OOB		0x01800003

/* PLA_RXFIFO_CTRL1 */
#define RXFIFO_THR2_FULL	0x00000060
#define RXFIFO_THR2_HIGH	0x00000038
#define RXFIFO_THR2_OOB		0x0000004a
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#define RXFIFO_THR2_NORMAL	0x00a0
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/* PLA_RXFIFO_CTRL2 */
#define RXFIFO_THR3_FULL	0x00000078
#define RXFIFO_THR3_HIGH	0x00000048
#define RXFIFO_THR3_OOB		0x0000005a
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#define RXFIFO_THR3_NORMAL	0x0110
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/* PLA_TXFIFO_CTRL */
#define TXFIFO_THR_NORMAL	0x00400008
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#define TXFIFO_THR_NORMAL2	0x01000008
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/* PLA_DMY_REG0 */
#define ECM_ALDPS		0x0002

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/* PLA_FMC */
#define FMC_FCR_MCU_EN		0x0001

/* PLA_EEEP_CR */
#define EEEP_CR_EEEP_TX		0x0002

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/* PLA_WDT6_CTRL */
#define WDT6_SET_MODE		0x0010

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/* PLA_TCR0 */
#define TCR0_TX_EMPTY		0x0800
#define TCR0_AUTO_FIFO		0x0080

/* PLA_TCR1 */
#define VERSION_MASK		0x7cf0

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/* PLA_MTPS */
#define MTPS_JUMBO		(12 * 1024 / 64)
#define MTPS_DEFAULT		(6 * 1024 / 64)

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/* PLA_RSTTALLY */
#define TALLY_RESET		0x0001

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/* PLA_CR */
#define CR_RST			0x10
#define CR_RE			0x08
#define CR_TE			0x04

/* PLA_CRWECR */
#define CRWECR_NORAML		0x00
#define CRWECR_CONFIG		0xc0

/* PLA_OOB_CTRL */
#define NOW_IS_OOB		0x80
#define TXFIFO_EMPTY		0x20
#define RXFIFO_EMPTY		0x10
#define LINK_LIST_READY		0x02
#define DIS_MCU_CLROOB		0x01
#define FIFO_EMPTY		(TXFIFO_EMPTY | RXFIFO_EMPTY)

/* PLA_MISC_1 */
#define RXDY_GATED_EN		0x0008

/* PLA_SFF_STS_7 */
#define RE_INIT_LL		0x8000
#define MCU_BORW_EN		0x4000

/* PLA_CPCR */
#define CPCR_RX_VLAN		0x0040

/* PLA_CFG_WOL */
#define MAGIC_EN		0x0001

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/* PLA_TEREDO_CFG */
#define TEREDO_SEL		0x8000
#define TEREDO_WAKE_MASK	0x7f00
#define TEREDO_RS_EVENT_MASK	0x00fe
#define OOB_TEREDO_EN		0x0001

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/* PAL_BDC_CR */
#define ALDPS_PROXY_MODE	0x0001

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/* PLA_CONFIG34 */
#define LINK_ON_WAKE_EN		0x0010
#define LINK_OFF_WAKE_EN	0x0008

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/* PLA_CONFIG5 */
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#define BWF_EN			0x0040
#define MWF_EN			0x0020
#define UWF_EN			0x0010
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#define LAN_WAKE_EN		0x0002

/* PLA_LED_FEATURE */
#define LED_MODE_MASK		0x0700

/* PLA_PHY_PWR */
#define TX_10M_IDLE_EN		0x0080
#define PFM_PWM_SWITCH		0x0040

/* PLA_MAC_PWR_CTRL */
#define D3_CLK_GATED_EN		0x00004000
#define MCU_CLK_RATIO		0x07010f07
#define MCU_CLK_RATIO_MASK	0x0f0f0f0f
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#define ALDPS_SPDWN_RATIO	0x0f87

/* PLA_MAC_PWR_CTRL2 */
#define EEE_SPDWN_RATIO		0x8007

/* PLA_MAC_PWR_CTRL3 */
#define PKT_AVAIL_SPDWN_EN	0x0100
#define SUSPEND_SPDWN_EN	0x0004
#define U1U2_SPDWN_EN		0x0002
#define L1_SPDWN_EN		0x0001

/* PLA_MAC_PWR_CTRL4 */
#define PWRSAVE_SPDWN_EN	0x1000
#define RXDV_SPDWN_EN		0x0800
#define TX10MIDLE_EN		0x0100
#define TP100_SPDWN_EN		0x0020
#define TP500_SPDWN_EN		0x0010
#define TP1000_SPDWN_EN		0x0008
#define EEE_SPDWN_EN		0x0001
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/* PLA_GPHY_INTR_IMR */
#define GPHY_STS_MSK		0x0001
#define SPEED_DOWN_MSK		0x0002
#define SPDWN_RXDV_MSK		0x0004
#define SPDWN_LINKCHG_MSK	0x0008

/* PLA_PHYAR */
#define PHYAR_FLAG		0x80000000

/* PLA_EEE_CR */
#define EEE_RX_EN		0x0001
#define EEE_TX_EN		0x0002

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/* PLA_BOOT_CTRL */
#define AUTOLOAD_DONE		0x0002

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/* USB_USB2PHY */
#define USB2PHY_SUSPEND		0x0001
#define USB2PHY_L1		0x0002

/* USB_SSPHYLINK2 */
#define pwd_dn_scale_mask	0x3ffe
#define pwd_dn_scale(x)		((x) << 1)

/* USB_CSR_DUMMY1 */
#define DYNAMIC_BURST		0x0001

/* USB_CSR_DUMMY2 */
#define EP4_FULL_FC		0x0001

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/* USB_DEV_STAT */
#define STAT_SPEED_MASK		0x0006
#define STAT_SPEED_HIGH		0x0000
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#define STAT_SPEED_FULL		0x0002
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/* USB_TX_AGG */
#define TX_AGG_MAX_THRESHOLD	0x03

/* USB_RX_BUF_TH */
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#define RX_THR_SUPPER		0x0c350180
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#define RX_THR_HIGH		0x7a120180
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#define RX_THR_SLOW		0xffff0180
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/* USB_TX_DMA */
#define TEST_MODE_DISABLE	0x00000001
#define TX_SIZE_ADJUST1		0x00000100

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/* USB_BMU_RESET */
#define BMU_RESET_EP_IN		0x01
#define BMU_RESET_EP_OUT	0x02

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/* USB_UPS_CTRL */
#define POWER_CUT		0x0100

/* USB_PM_CTRL_STATUS */
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#define RESUME_INDICATE		0x0001
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/* USB_USB_CTRL */
#define RX_AGG_DISABLE		0x0010
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#define RX_ZERO_EN		0x0080
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/* USB_U2P3_CTRL */
#define U2P3_ENABLE		0x0001

/* USB_POWER_CUT */
#define PWR_EN			0x0001
#define PHASE2_EN		0x0008

/* USB_MISC_0 */
#define PCUT_STATUS		0x0001

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/* USB_RX_EARLY_TIMEOUT */
#define COALESCE_SUPER		 85000U
#define COALESCE_HIGH		250000U
#define COALESCE_SLOW		524280U
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/* USB_WDT11_CTRL */
#define TIMER11_EN		0x0001

/* USB_LPM_CTRL */
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/* bit 4 ~ 5: fifo empty boundary */
#define FIFO_EMPTY_1FB		0x30	/* 0x1fb * 64 = 32448 bytes */
/* bit 2 ~ 3: LMP timer */
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#define LPM_TIMER_MASK		0x0c
#define LPM_TIMER_500MS		0x04	/* 500 ms */
#define LPM_TIMER_500US		0x0c	/* 500 us */
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#define ROK_EXIT_LPM		0x02
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/* USB_AFE_CTRL2 */
#define SEN_VAL_MASK		0xf800
#define SEN_VAL_NORMAL		0xa000
#define SEL_RXIDLE		0x0100

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/* OCP_ALDPS_CONFIG */
#define ENPWRSAVE		0x8000
#define ENPDNPS			0x0200
#define LINKENA			0x0100
#define DIS_SDSAVE		0x0010

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/* OCP_PHY_STATUS */
#define PHY_STAT_MASK		0x0007
#define PHY_STAT_LAN_ON		3
#define PHY_STAT_PWRDN		5

/* OCP_POWER_CFG */
#define EEE_CLKDIV_EN		0x8000
#define EN_ALDPS		0x0004
#define EN_10M_PLLOFF		0x0001

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/* OCP_EEE_CONFIG1 */
#define RG_TXLPI_MSK_HFDUP	0x8000
#define RG_MATCLR_EN		0x4000
#define EEE_10_CAP		0x2000
#define EEE_NWAY_EN		0x1000
#define TX_QUIET_EN		0x0200
#define RX_QUIET_EN		0x0100
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#define sd_rise_time_mask	0x0070
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#define sd_rise_time(x)		(min(x, 7) << 4)	/* bit 4 ~ 6 */
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#define RG_RXLPI_MSK_HFDUP	0x0008
#define SDFALLTIME		0x0007	/* bit 0 ~ 2 */

/* OCP_EEE_CONFIG2 */
#define RG_LPIHYS_NUM		0x7000	/* bit 12 ~ 15 */
#define RG_DACQUIET_EN		0x0400
#define RG_LDVQUIET_EN		0x0200
#define RG_CKRSEL		0x0020
#define RG_EEEPRG_EN		0x0010

/* OCP_EEE_CONFIG3 */
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#define fast_snr_mask		0xff80
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#define fast_snr(x)		(min(x, 0x1ff) << 7)	/* bit 7 ~ 15 */
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#define RG_LFS_SEL		0x0060	/* bit 6 ~ 5 */
#define MSK_PH			0x0006	/* bit 0 ~ 3 */

/* OCP_EEE_AR */
/* bit[15:14] function */
#define FUN_ADDR		0x0000
#define FUN_DATA		0x4000
/* bit[4:0] device addr */

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/* OCP_EEE_CFG */
#define CTAP_SHORT_EN		0x0040
#define EEE10_EN		0x0010

/* OCP_DOWN_SPEED */
#define EN_10M_BGOFF		0x0080

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/* OCP_PHY_STATE */
#define TXDIS_STATE		0x01
#define ABD_STATE		0x02

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/* OCP_ADC_CFG */
#define CKADSEL_L		0x0100
#define ADC_EN			0x0080
#define EN_EMI_L		0x0040

/* SRAM_LPF_CFG */
#define LPF_AUTO_TUNE		0x8000

/* SRAM_10M_AMP1 */
#define GDAC_IB_UPALL		0x0008

/* SRAM_10M_AMP2 */
#define AMP_DN			0x0200

/* SRAM_IMPEDANCE */
#define RX_DRIVING_MASK		0x6000

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enum rtl_register_content {
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	_1000bps	= 0x10,
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	_100bps		= 0x08,
	_10bps		= 0x04,
	LINK_STATUS	= 0x02,
	FULL_DUP	= 0x01,
};

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#define RTL8152_MAX_TX		4
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#define RTL8152_MAX_RX		10
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#define INTBUFSIZE		2
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#define CRC_SIZE		4
#define TX_ALIGN		4
#define RX_ALIGN		8
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#define INTR_LINK		0x0004
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#define RTL8152_REQT_READ	0xc0
#define RTL8152_REQT_WRITE	0x40
#define RTL8152_REQ_GET_REGS	0x05
#define RTL8152_REQ_SET_REGS	0x05

#define BYTE_EN_DWORD		0xff
#define BYTE_EN_WORD		0x33
#define BYTE_EN_BYTE		0x11
#define BYTE_EN_SIX_BYTES	0x3f
#define BYTE_EN_START_MASK	0x0f
#define BYTE_EN_END_MASK	0xf0

492 493
#define RTL8153_MAX_PACKET	9216 /* 9K */
#define RTL8153_MAX_MTU		(RTL8153_MAX_PACKET - VLAN_ETH_HLEN - VLAN_HLEN)
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#define RTL8152_RMS		(VLAN_ETH_FRAME_LEN + VLAN_HLEN)
495
#define RTL8153_RMS		RTL8153_MAX_PACKET
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#define RTL8152_TX_TIMEOUT	(5 * HZ)
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#define RTL8152_NAPI_WEIGHT	64
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/* rtl8152 flags */
enum rtl8152_flags {
	RTL8152_UNPLUG = 0,
	RTL8152_SET_RX_MODE,
503 504
	WORK_ENABLE,
	RTL8152_LINK_CHG,
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	SELECTIVE_SUSPEND,
506
	PHY_RESET,
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	SCHEDULE_NAPI,
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};

/* Define these values to match your device */
#define VENDOR_ID_REALTEK		0x0bda
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#define VENDOR_ID_SAMSUNG		0x04e8
513
#define VENDOR_ID_LENOVO		0x17ef
514
#define VENDOR_ID_NVIDIA		0x0955
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#define MCU_TYPE_PLA			0x0100
#define MCU_TYPE_USB			0x0000

519 520 521 522 523 524 525 526 527 528 529 530 531
struct tally_counter {
	__le64	tx_packets;
	__le64	rx_packets;
	__le64	tx_errors;
	__le32	rx_errors;
	__le16	rx_missed;
	__le16	align_errors;
	__le32	tx_one_collision;
	__le32	tx_multi_collision;
	__le64	rx_unicast;
	__le64	rx_broadcast;
	__le32	rx_multicast;
	__le16	tx_aborted;
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	__le16	tx_underrun;
533 534
};

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struct rx_desc {
536
	__le32 opts1;
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#define RX_LEN_MASK			0x7fff
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539
	__le32 opts2;
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#define RD_UDP_CS			BIT(23)
#define RD_TCP_CS			BIT(22)
#define RD_IPV6_CS			BIT(20)
#define RD_IPV4_CS			BIT(19)
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545
	__le32 opts3;
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#define IPF				BIT(23) /* IP checksum fail */
#define UDPF				BIT(22) /* UDP checksum fail */
#define TCPF				BIT(21) /* TCP checksum fail */
#define RX_VLAN_TAG			BIT(16)
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551 552 553
	__le32 opts4;
	__le32 opts5;
	__le32 opts6;
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};

struct tx_desc {
557
	__le32 opts1;
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#define TX_FS			BIT(31) /* First segment of a packet */
#define TX_LS			BIT(30) /* Final segment of a packet */
#define GTSENDV4		BIT(28)
#define GTSENDV6		BIT(27)
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#define GTTCPHO_SHIFT		18
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#define GTTCPHO_MAX		0x7fU
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#define TX_LEN_MAX		0x3ffffU
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566
	__le32 opts2;
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#define UDP_CS			BIT(31) /* Calculate UDP/IP checksum */
#define TCP_CS			BIT(30) /* Calculate TCP/IP checksum */
#define IPV4_CS			BIT(29) /* Calculate IPv4 checksum */
#define IPV6_CS			BIT(28) /* Calculate IPv6 checksum */
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#define MSS_SHIFT		17
#define MSS_MAX			0x7ffU
#define TCPHO_SHIFT		17
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#define TCPHO_MAX		0x7ffU
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#define TX_VLAN_TAG		BIT(16)
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};

578 579
struct r8152;

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struct rx_agg {
	struct list_head list;
	struct urb *urb;
583
	struct r8152 *context;
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	void *buffer;
	void *head;
};

struct tx_agg {
	struct list_head list;
	struct urb *urb;
591
	struct r8152 *context;
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	void *buffer;
	void *head;
	u32 skb_num;
	u32 skb_len;
};

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struct r8152 {
	unsigned long flags;
	struct usb_device *udev;
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	struct napi_struct napi;
602
	struct usb_interface *intf;
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	struct net_device *netdev;
604
	struct urb *intr_urb;
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	struct tx_agg tx_info[RTL8152_MAX_TX];
	struct rx_agg rx_info[RTL8152_MAX_RX];
	struct list_head rx_done, tx_free;
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	struct sk_buff_head tx_queue, rx_queue;
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	spinlock_t rx_lock, tx_lock;
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	struct delayed_work schedule;
	struct mii_if_info mii;
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	struct mutex control;	/* use for hw setting */
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#ifdef CONFIG_PM_SLEEP
	struct notifier_block pm_notifier;
#endif
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	struct rtl_ops {
		void (*init)(struct r8152 *);
		int (*enable)(struct r8152 *);
		void (*disable)(struct r8152 *);
621
		void (*up)(struct r8152 *);
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		void (*down)(struct r8152 *);
		void (*unload)(struct r8152 *);
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		int (*eee_get)(struct r8152 *, struct ethtool_eee *);
		int (*eee_set)(struct r8152 *, struct ethtool_eee *);
626
		bool (*in_nway)(struct r8152 *);
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	} rtl_ops;

629
	int intr_interval;
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	u32 saved_wolopts;
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	u32 msg_enable;
632
	u32 tx_qlen;
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	u32 coalesce;
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	u16 ocp_base;
635
	u8 *intr_buff;
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	u8 version;
};

enum rtl_version {
	RTL_VER_UNKNOWN = 0,
	RTL_VER_01,
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	RTL_VER_02,
	RTL_VER_03,
	RTL_VER_04,
	RTL_VER_05,
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	RTL_VER_06,
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	RTL_VER_MAX
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};

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enum tx_csum_stat {
	TX_CSUM_SUCCESS = 0,
	TX_CSUM_TSO,
	TX_CSUM_NONE
};

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/* Maximum number of multicast addresses to filter (vs. Rx-all-multicast).
 * The RTL chips use a 64 element hash table based on the Ethernet CRC.
 */
static const int multicast_filter_limit = 32;
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static unsigned int agg_buf_sz = 16384;
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661

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#define RTL_LIMITED_TSO_SIZE	(agg_buf_sz - sizeof(struct tx_desc) - \
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				 VLAN_ETH_HLEN - VLAN_HLEN)

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static
int get_registers(struct r8152 *tp, u16 value, u16 index, u16 size, void *data)
{
668 669 670 671 672 673 674 675
	int ret;
	void *tmp;

	tmp = kmalloc(size, GFP_KERNEL);
	if (!tmp)
		return -ENOMEM;

	ret = usb_control_msg(tp->udev, usb_rcvctrlpipe(tp->udev, 0),
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			      RTL8152_REQ_GET_REGS, RTL8152_REQT_READ,
			      value, index, tmp, size, 500);
678 679 680 681 682

	memcpy(data, tmp, size);
	kfree(tmp);

	return ret;
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}

static
int set_registers(struct r8152 *tp, u16 value, u16 index, u16 size, void *data)
{
688 689 690
	int ret;
	void *tmp;

691
	tmp = kmemdup(data, size, GFP_KERNEL);
692 693 694 695
	if (!tmp)
		return -ENOMEM;

	ret = usb_control_msg(tp->udev, usb_sndctrlpipe(tp->udev, 0),
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			      RTL8152_REQ_SET_REGS, RTL8152_REQT_WRITE,
			      value, index, tmp, size, 500);
698 699

	kfree(tmp);
700

701
	return ret;
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}

static int generic_ocp_read(struct r8152 *tp, u16 index, u16 size,
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			    void *data, u16 type)
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{
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	u16 limit = 64;
	int ret = 0;
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	if (test_bit(RTL8152_UNPLUG, &tp->flags))
		return -ENODEV;

	/* both size and indix must be 4 bytes align */
	if ((size & 3) || !size || (index & 3) || !data)
		return -EPERM;

	if ((u32)index + (u32)size > 0xffff)
		return -EPERM;

	while (size) {
		if (size > limit) {
			ret = get_registers(tp, index, type, limit, data);
			if (ret < 0)
				break;

			index += limit;
			data += limit;
			size -= limit;
		} else {
			ret = get_registers(tp, index, type, size, data);
			if (ret < 0)
				break;

			index += size;
			data += size;
			size = 0;
			break;
		}
	}

741 742 743
	if (ret == -ENODEV)
		set_bit(RTL8152_UNPLUG, &tp->flags);

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	return ret;
}

static int generic_ocp_write(struct r8152 *tp, u16 index, u16 byteen,
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			     u16 size, void *data, u16 type)
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{
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	int ret;
	u16 byteen_start, byteen_end, byen;
	u16 limit = 512;
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	if (test_bit(RTL8152_UNPLUG, &tp->flags))
		return -ENODEV;

	/* both size and indix must be 4 bytes align */
	if ((size & 3) || !size || (index & 3) || !data)
		return -EPERM;

	if ((u32)index + (u32)size > 0xffff)
		return -EPERM;

	byteen_start = byteen & BYTE_EN_START_MASK;
	byteen_end = byteen & BYTE_EN_END_MASK;

	byen = byteen_start | (byteen_start << 4);
	ret = set_registers(tp, index, type | byen, 4, data);
	if (ret < 0)
		goto error1;

	index += 4;
	data += 4;
	size -= 4;

	if (size) {
		size -= 4;

		while (size) {
			if (size > limit) {
				ret = set_registers(tp, index,
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						    type | BYTE_EN_DWORD,
						    limit, data);
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				if (ret < 0)
					goto error1;

				index += limit;
				data += limit;
				size -= limit;
			} else {
				ret = set_registers(tp, index,
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						    type | BYTE_EN_DWORD,
						    size, data);
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				if (ret < 0)
					goto error1;

				index += size;
				data += size;
				size = 0;
				break;
			}
		}

		byen = byteen_end | (byteen_end >> 4);
		ret = set_registers(tp, index, type | byen, 4, data);
		if (ret < 0)
			goto error1;
	}

error1:
811 812 813
	if (ret == -ENODEV)
		set_bit(RTL8152_UNPLUG, &tp->flags);

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	return ret;
}

static inline
int pla_ocp_read(struct r8152 *tp, u16 index, u16 size, void *data)
{
	return generic_ocp_read(tp, index, size, data, MCU_TYPE_PLA);
}

static inline
int pla_ocp_write(struct r8152 *tp, u16 index, u16 byteen, u16 size, void *data)
{
	return generic_ocp_write(tp, index, byteen, size, data, MCU_TYPE_PLA);
}

static inline
int usb_ocp_read(struct r8152 *tp, u16 index, u16 size, void *data)
{
	return generic_ocp_read(tp, index, size, data, MCU_TYPE_USB);
}

static inline
int usb_ocp_write(struct r8152 *tp, u16 index, u16 byteen, u16 size, void *data)
{
	return generic_ocp_write(tp, index, byteen, size, data, MCU_TYPE_USB);
}

static u32 ocp_read_dword(struct r8152 *tp, u16 type, u16 index)
{
843
	__le32 data;
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845
	generic_ocp_read(tp, index, sizeof(data), &data, type);
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	return __le32_to_cpu(data);
}

static void ocp_write_dword(struct r8152 *tp, u16 type, u16 index, u32 data)
{
852 853 854
	__le32 tmp = __cpu_to_le32(data);

	generic_ocp_write(tp, index, BYTE_EN_DWORD, sizeof(tmp), &tmp, type);
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}

static u16 ocp_read_word(struct r8152 *tp, u16 type, u16 index)
{
	u32 data;
860
	__le32 tmp;
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	u8 shift = index & 2;

	index &= ~3;

865
	generic_ocp_read(tp, index, sizeof(tmp), &tmp, type);
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867
	data = __le32_to_cpu(tmp);
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	data >>= (shift * 8);
	data &= 0xffff;

	return (u16)data;
}

static void ocp_write_word(struct r8152 *tp, u16 type, u16 index, u32 data)
{
876 877
	u32 mask = 0xffff;
	__le32 tmp;
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	u16 byen = BYTE_EN_WORD;
	u8 shift = index & 2;

	data &= mask;

	if (index & 2) {
		byen <<= shift;
		mask <<= (shift * 8);
		data <<= (shift * 8);
		index &= ~3;
	}

890
	tmp = __cpu_to_le32(data);
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892
	generic_ocp_write(tp, index, byen, sizeof(tmp), &tmp, type);
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}

static u8 ocp_read_byte(struct r8152 *tp, u16 type, u16 index)
{
	u32 data;
898
	__le32 tmp;
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	u8 shift = index & 3;

	index &= ~3;

903
	generic_ocp_read(tp, index, sizeof(tmp), &tmp, type);
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905
	data = __le32_to_cpu(tmp);
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	data >>= (shift * 8);
	data &= 0xff;

	return (u8)data;
}

static void ocp_write_byte(struct r8152 *tp, u16 type, u16 index, u32 data)
{
914 915
	u32 mask = 0xff;
	__le32 tmp;
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	u16 byen = BYTE_EN_BYTE;
	u8 shift = index & 3;

	data &= mask;

	if (index & 3) {
		byen <<= shift;
		mask <<= (shift * 8);
		data <<= (shift * 8);
		index &= ~3;
	}

928
	tmp = __cpu_to_le32(data);
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930
	generic_ocp_write(tp, index, byen, sizeof(tmp), &tmp, type);
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}

933
static u16 ocp_reg_read(struct r8152 *tp, u16 addr)
934 935 936 937 938 939 940 941 942 943
{
	u16 ocp_base, ocp_index;

	ocp_base = addr & 0xf000;
	if (ocp_base != tp->ocp_base) {
		ocp_write_word(tp, MCU_TYPE_PLA, PLA_OCP_GPHY_BASE, ocp_base);
		tp->ocp_base = ocp_base;
	}

	ocp_index = (addr & 0x0fff) | 0xb000;
944
	return ocp_read_word(tp, MCU_TYPE_PLA, ocp_index);
945 946
}

947
static void ocp_reg_write(struct r8152 *tp, u16 addr, u16 data)
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{
949
	u16 ocp_base, ocp_index;
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951 952 953 954
	ocp_base = addr & 0xf000;
	if (ocp_base != tp->ocp_base) {
		ocp_write_word(tp, MCU_TYPE_PLA, PLA_OCP_GPHY_BASE, ocp_base);
		tp->ocp_base = ocp_base;
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	}
956 957 958

	ocp_index = (addr & 0x0fff) | 0xb000;
	ocp_write_word(tp, MCU_TYPE_PLA, ocp_index, data);
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}

961
static inline void r8152_mdio_write(struct r8152 *tp, u32 reg_addr, u32 value)
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{
963 964
	ocp_reg_write(tp, OCP_BASE_MII + reg_addr * 2, value);
}
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966 967 968
static inline int r8152_mdio_read(struct r8152 *tp, u32 reg_addr)
{
	return ocp_reg_read(tp, OCP_BASE_MII + reg_addr * 2);
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}

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static void sram_write(struct r8152 *tp, u16 addr, u16 data)
{
	ocp_reg_write(tp, OCP_SRAM_ADDR, addr);
	ocp_reg_write(tp, OCP_SRAM_DATA, data);
}

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static int read_mii_word(struct net_device *netdev, int phy_id, int reg)
{
	struct r8152 *tp = netdev_priv(netdev);
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	int ret;
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	if (test_bit(RTL8152_UNPLUG, &tp->flags))
		return -ENODEV;

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	if (phy_id != R8152_PHY_ID)
		return -EINVAL;

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	ret = r8152_mdio_read(tp, reg);

	return ret;
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}

static
void write_mii_word(struct net_device *netdev, int phy_id, int reg, int val)
{
	struct r8152 *tp = netdev_priv(netdev);

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	if (test_bit(RTL8152_UNPLUG, &tp->flags))
		return;

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	if (phy_id != R8152_PHY_ID)
		return;

	r8152_mdio_write(tp, reg, val);
}

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static int
r8152_submit_rx(struct r8152 *tp, struct rx_agg *agg, gfp_t mem_flags);
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1010 1011 1012 1013
static int rtl8152_set_mac_address(struct net_device *netdev, void *p)
{
	struct r8152 *tp = netdev_priv(netdev);
	struct sockaddr *addr = p;
1014
	int ret = -EADDRNOTAVAIL;
1015 1016

	if (!is_valid_ether_addr(addr->sa_data))
1017 1018 1019 1020 1021
		goto out1;

	ret = usb_autopm_get_interface(tp->intf);
	if (ret < 0)
		goto out1;
1022

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	mutex_lock(&tp->control);

1025 1026 1027 1028 1029 1030
	memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);

	ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CRWECR, CRWECR_CONFIG);
	pla_ocp_write(tp, PLA_IDR, BYTE_EN_SIX_BYTES, 8, addr->sa_data);
	ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CRWECR, CRWECR_NORAML);

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	mutex_unlock(&tp->control);

1033 1034 1035
	usb_autopm_put_interface(tp->intf);
out1:
	return ret;
1036 1037
}

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static int set_ethernet_addr(struct r8152 *tp)
H
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{
	struct net_device *dev = tp->netdev;
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	struct sockaddr sa;
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	int ret;
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	if (tp->version == RTL_VER_01)
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		ret = pla_ocp_read(tp, PLA_IDR, 8, sa.sa_data);
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	else
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		ret = pla_ocp_read(tp, PLA_BACKUP, 8, sa.sa_data);
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	if (ret < 0) {
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		netif_err(tp, probe, dev, "Get ether addr fail\n");
	} else if (!is_valid_ether_addr(sa.sa_data)) {
		netif_err(tp, probe, dev, "Invalid ether addr %pM\n",
			  sa.sa_data);
		eth_hw_addr_random(dev);
		ether_addr_copy(sa.sa_data, dev->dev_addr);
		ret = rtl8152_set_mac_address(dev, &sa);
		netif_info(tp, probe, dev, "Random ether addr %pM\n",
			   sa.sa_data);
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	} else {
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		if (tp->version == RTL_VER_01)
			ether_addr_copy(dev->dev_addr, sa.sa_data);
		else
			ret = rtl8152_set_mac_address(dev, &sa);
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	}
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	return ret;
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}

static void read_bulk_callback(struct urb *urb)
{
	struct net_device *netdev;
	int status = urb->status;
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	struct rx_agg *agg;
	struct r8152 *tp;
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	agg = urb->context;
	if (!agg)
		return;

	tp = agg->context;
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	if (!tp)
		return;
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	if (test_bit(RTL8152_UNPLUG, &tp->flags))
		return;
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	if (!test_bit(WORK_ENABLE, &tp->flags))
		return;

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	netdev = tp->netdev;
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	/* When link down, the driver would cancel all bulks. */
	/* This avoid the re-submitting bulk */
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	if (!netif_carrier_ok(netdev))
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		return;

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	usb_mark_last_busy(tp->udev);

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	switch (status) {
	case 0:
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		if (urb->actual_length < ETH_ZLEN)
			break;

1104
		spin_lock(&tp->rx_lock);
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		list_add_tail(&agg->list, &tp->rx_done);
1106
		spin_unlock(&tp->rx_lock);
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		napi_schedule(&tp->napi);
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		return;
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	case -ESHUTDOWN:
		set_bit(RTL8152_UNPLUG, &tp->flags);
		netif_device_detach(tp->netdev);
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		return;
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	case -ENOENT:
		return;	/* the urb is in unlink state */
	case -ETIME:
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		if (net_ratelimit())
			netdev_warn(netdev, "maybe reset is needed?\n");
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		break;
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	default:
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		if (net_ratelimit())
			netdev_warn(netdev, "Rx status %d\n", status);
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		break;
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	}

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	r8152_submit_rx(tp, agg, GFP_ATOMIC);
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}

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static void write_bulk_callback(struct urb *urb)
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{
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1130
	struct net_device_stats *stats;
1131
	struct net_device *netdev;
H
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1132
	struct tx_agg *agg;
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1133
	struct r8152 *tp;
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	int status = urb->status;
H
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H
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	agg = urb->context;
	if (!agg)
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		return;

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	tp = agg->context;
	if (!tp)
		return;

1144
	netdev = tp->netdev;
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	stats = &netdev->stats;
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	if (status) {
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		if (net_ratelimit())
1148
			netdev_warn(netdev, "Tx status %d\n", status);
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		stats->tx_errors += agg->skb_num;
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	} else {
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		stats->tx_packets += agg->skb_num;
		stats->tx_bytes += agg->skb_len;
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	}

1155
	spin_lock(&tp->tx_lock);
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	list_add_tail(&agg->list, &tp->tx_free);
1157
	spin_unlock(&tp->tx_lock);
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1158

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	usb_autopm_put_interface_async(tp->intf);

1161
	if (!netif_carrier_ok(netdev))
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		return;

	if (!test_bit(WORK_ENABLE, &tp->flags))
		return;

	if (test_bit(RTL8152_UNPLUG, &tp->flags))
		return;

	if (!skb_queue_empty(&tp->tx_queue))
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		napi_schedule(&tp->napi);
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}

1174 1175 1176
static void intr_callback(struct urb *urb)
{
	struct r8152 *tp;
1177
	__le16 *d;
1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197
	int status = urb->status;
	int res;

	tp = urb->context;
	if (!tp)
		return;

	if (!test_bit(WORK_ENABLE, &tp->flags))
		return;

	if (test_bit(RTL8152_UNPLUG, &tp->flags))
		return;

	switch (status) {
	case 0:			/* success */
		break;
	case -ECONNRESET:	/* unlink */
	case -ESHUTDOWN:
		netif_device_detach(tp->netdev);
	case -ENOENT:
1198 1199 1200
	case -EPROTO:
		netif_info(tp, intr, tp->netdev,
			   "Stop submitting intr, status %d\n", status);
1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212
		return;
	case -EOVERFLOW:
		netif_info(tp, intr, tp->netdev, "intr status -EOVERFLOW\n");
		goto resubmit;
	/* -EPIPE:  should clear the halt */
	default:
		netif_info(tp, intr, tp->netdev, "intr status %d\n", status);
		goto resubmit;
	}

	d = urb->transfer_buffer;
	if (INTR_LINK & __le16_to_cpu(d[0])) {
1213
		if (!netif_carrier_ok(tp->netdev)) {
1214 1215 1216 1217
			set_bit(RTL8152_LINK_CHG, &tp->flags);
			schedule_delayed_work(&tp->schedule, 0);
		}
	} else {
1218
		if (netif_carrier_ok(tp->netdev)) {
1219 1220 1221 1222 1223 1224 1225
			set_bit(RTL8152_LINK_CHG, &tp->flags);
			schedule_delayed_work(&tp->schedule, 0);
		}
	}

resubmit:
	res = usb_submit_urb(urb, GFP_ATOMIC);
1226 1227
	if (res == -ENODEV) {
		set_bit(RTL8152_UNPLUG, &tp->flags);
1228
		netif_device_detach(tp->netdev);
1229
	} else if (res) {
1230
		netif_err(tp, intr, tp->netdev,
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			  "can't resubmit intr, status %d\n", res);
1232
	}
1233 1234
}

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static inline void *rx_agg_align(void *data)
{
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	return (void *)ALIGN((uintptr_t)data, RX_ALIGN);
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}

static inline void *tx_agg_align(void *data)
{
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	return (void *)ALIGN((uintptr_t)data, TX_ALIGN);
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}

static void free_all_mem(struct r8152 *tp)
{
	int i;

	for (i = 0; i < RTL8152_MAX_RX; i++) {
1250 1251
		usb_free_urb(tp->rx_info[i].urb);
		tp->rx_info[i].urb = NULL;
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1253 1254 1255
		kfree(tp->rx_info[i].buffer);
		tp->rx_info[i].buffer = NULL;
		tp->rx_info[i].head = NULL;
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	}

	for (i = 0; i < RTL8152_MAX_TX; i++) {
1259 1260
		usb_free_urb(tp->tx_info[i].urb);
		tp->tx_info[i].urb = NULL;
H
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1262 1263 1264
		kfree(tp->tx_info[i].buffer);
		tp->tx_info[i].buffer = NULL;
		tp->tx_info[i].head = NULL;
H
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	}
1266

1267 1268
	usb_free_urb(tp->intr_urb);
	tp->intr_urb = NULL;
1269

1270 1271
	kfree(tp->intr_buff);
	tp->intr_buff = NULL;
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}

static int alloc_all_mem(struct r8152 *tp)
{
	struct net_device *netdev = tp->netdev;
1277 1278 1279
	struct usb_interface *intf = tp->intf;
	struct usb_host_interface *alt = intf->cur_altsetting;
	struct usb_host_endpoint *ep_intr = alt->endpoint + 2;
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	struct urb *urb;
	int node, i;
	u8 *buf;

	node = netdev->dev.parent ? dev_to_node(netdev->dev.parent) : -1;

	spin_lock_init(&tp->rx_lock);
	spin_lock_init(&tp->tx_lock);
	INIT_LIST_HEAD(&tp->tx_free);
	skb_queue_head_init(&tp->tx_queue);
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	skb_queue_head_init(&tp->rx_queue);
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	for (i = 0; i < RTL8152_MAX_RX; i++) {
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		buf = kmalloc_node(agg_buf_sz, GFP_KERNEL, node);
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		if (!buf)
			goto err1;

		if (buf != rx_agg_align(buf)) {
			kfree(buf);
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			buf = kmalloc_node(agg_buf_sz + RX_ALIGN, GFP_KERNEL,
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					   node);
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			if (!buf)
				goto err1;
		}

		urb = usb_alloc_urb(0, GFP_KERNEL);
		if (!urb) {
			kfree(buf);
			goto err1;
		}

		INIT_LIST_HEAD(&tp->rx_info[i].list);
		tp->rx_info[i].context = tp;
		tp->rx_info[i].urb = urb;
		tp->rx_info[i].buffer = buf;
		tp->rx_info[i].head = rx_agg_align(buf);
	}

	for (i = 0; i < RTL8152_MAX_TX; i++) {
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		buf = kmalloc_node(agg_buf_sz, GFP_KERNEL, node);
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		if (!buf)
			goto err1;

		if (buf != tx_agg_align(buf)) {
			kfree(buf);
H
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			buf = kmalloc_node(agg_buf_sz + TX_ALIGN, GFP_KERNEL,
H
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					   node);
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			if (!buf)
				goto err1;
		}

		urb = usb_alloc_urb(0, GFP_KERNEL);
		if (!urb) {
			kfree(buf);
			goto err1;
		}

		INIT_LIST_HEAD(&tp->tx_info[i].list);
		tp->tx_info[i].context = tp;
		tp->tx_info[i].urb = urb;
		tp->tx_info[i].buffer = buf;
		tp->tx_info[i].head = tx_agg_align(buf);

		list_add_tail(&tp->tx_info[i].list, &tp->tx_free);
	}

1346 1347 1348 1349 1350 1351 1352 1353 1354 1355
	tp->intr_urb = usb_alloc_urb(0, GFP_KERNEL);
	if (!tp->intr_urb)
		goto err1;

	tp->intr_buff = kmalloc(INTBUFSIZE, GFP_KERNEL);
	if (!tp->intr_buff)
		goto err1;

	tp->intr_interval = (int)ep_intr->desc.bInterval;
	usb_fill_int_urb(tp->intr_urb, tp->udev, usb_rcvintpipe(tp->udev, 3),
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			 tp->intr_buff, INTBUFSIZE, intr_callback,
			 tp, tp->intr_interval);
1358

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	return 0;

err1:
	free_all_mem(tp);
	return -ENOMEM;
}

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static struct tx_agg *r8152_get_tx_agg(struct r8152 *tp)
{
	struct tx_agg *agg = NULL;
	unsigned long flags;

1371 1372 1373
	if (list_empty(&tp->tx_free))
		return NULL;

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	spin_lock_irqsave(&tp->tx_lock, flags);
	if (!list_empty(&tp->tx_free)) {
		struct list_head *cursor;

		cursor = tp->tx_free.next;
		list_del_init(cursor);
		agg = list_entry(cursor, struct tx_agg, list);
	}
	spin_unlock_irqrestore(&tp->tx_lock, flags);

	return agg;
}

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/* r8152_csum_workaround()
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1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398
 * The hw limites the value the transport offset. When the offset is out of the
 * range, calculate the checksum by sw.
 */
static void r8152_csum_workaround(struct r8152 *tp, struct sk_buff *skb,
				  struct sk_buff_head *list)
{
	if (skb_shinfo(skb)->gso_size) {
		netdev_features_t features = tp->netdev->features;
		struct sk_buff_head seg_list;
		struct sk_buff *segs, *nskb;

1399
		features &= ~(NETIF_F_SG | NETIF_F_IPV6_CSUM | NETIF_F_TSO6);
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		segs = skb_gso_segment(skb, features);
		if (IS_ERR(segs) || !segs)
			goto drop;

		__skb_queue_head_init(&seg_list);

		do {
			nskb = segs;
			segs = segs->next;
			nskb->next = NULL;
			__skb_queue_tail(&seg_list, nskb);
		} while (segs);

		skb_queue_splice(&seg_list, list);
		dev_kfree_skb(skb);
	} else if (skb->ip_summed == CHECKSUM_PARTIAL) {
		if (skb_checksum_help(skb) < 0)
			goto drop;

		__skb_queue_head(list, skb);
	} else {
		struct net_device_stats *stats;

drop:
		stats = &tp->netdev->stats;
		stats->tx_dropped++;
		dev_kfree_skb(skb);
	}
}

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/* msdn_giant_send_check()
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1431 1432 1433 1434 1435 1436 1437
 * According to the document of microsoft, the TCP Pseudo Header excludes the
 * packet length for IPv6 TCP large packets.
 */
static int msdn_giant_send_check(struct sk_buff *skb)
{
	const struct ipv6hdr *ipv6h;
	struct tcphdr *th;
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	int ret;

	ret = skb_cow_head(skb, 0);
	if (ret)
		return ret;
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	ipv6h = ipv6_hdr(skb);
	th = tcp_hdr(skb);

	th->check = 0;
	th->check = ~tcp_v6_check(0, &ipv6h->saddr, &ipv6h->daddr, 0);

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	return ret;
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}

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static inline void rtl_tx_vlan_tag(struct tx_desc *desc, struct sk_buff *skb)
{
1455
	if (skb_vlan_tag_present(skb)) {
H
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1456 1457
		u32 opts2;

1458
		opts2 = TX_VLAN_TAG | swab16(skb_vlan_tag_get(skb));
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		desc->opts2 |= cpu_to_le32(opts2);
	}
}

static inline void rtl_rx_vlan_tag(struct rx_desc *desc, struct sk_buff *skb)
{
	u32 opts2 = le32_to_cpu(desc->opts2);

	if (opts2 & RX_VLAN_TAG)
		__vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q),
				       swab16(opts2 & 0xffff));
}

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static int r8152_tx_csum(struct r8152 *tp, struct tx_desc *desc,
			 struct sk_buff *skb, u32 len, u32 transport_offset)
{
	u32 mss = skb_shinfo(skb)->gso_size;
	u32 opts1, opts2 = 0;
	int ret = TX_CSUM_SUCCESS;

	WARN_ON_ONCE(len > TX_LEN_MAX);

	opts1 = len | TX_FS | TX_LS;

	if (mss) {
H
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1484 1485 1486 1487 1488 1489 1490 1491
		if (transport_offset > GTTCPHO_MAX) {
			netif_warn(tp, tx_err, tp->netdev,
				   "Invalid transport offset 0x%x for TSO\n",
				   transport_offset);
			ret = TX_CSUM_TSO;
			goto unavailable;
		}

1492
		switch (vlan_get_protocol(skb)) {
H
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1493 1494 1495 1496
		case htons(ETH_P_IP):
			opts1 |= GTSENDV4;
			break;

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1497
		case htons(ETH_P_IPV6):
H
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1498 1499 1500 1501
			if (msdn_giant_send_check(skb)) {
				ret = TX_CSUM_TSO;
				goto unavailable;
			}
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1502 1503 1504
			opts1 |= GTSENDV6;
			break;

H
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1505 1506 1507 1508 1509 1510 1511 1512 1513
		default:
			WARN_ON_ONCE(1);
			break;
		}

		opts1 |= transport_offset << GTTCPHO_SHIFT;
		opts2 |= min(mss, MSS_MAX) << MSS_SHIFT;
	} else if (skb->ip_summed == CHECKSUM_PARTIAL) {
		u8 ip_protocol;
H
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1514

H
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1515 1516 1517 1518 1519 1520 1521 1522
		if (transport_offset > TCPHO_MAX) {
			netif_warn(tp, tx_err, tp->netdev,
				   "Invalid transport offset 0x%x\n",
				   transport_offset);
			ret = TX_CSUM_NONE;
			goto unavailable;
		}

1523
		switch (vlan_get_protocol(skb)) {
H
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1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538
		case htons(ETH_P_IP):
			opts2 |= IPV4_CS;
			ip_protocol = ip_hdr(skb)->protocol;
			break;

		case htons(ETH_P_IPV6):
			opts2 |= IPV6_CS;
			ip_protocol = ipv6_hdr(skb)->nexthdr;
			break;

		default:
			ip_protocol = IPPROTO_RAW;
			break;
		}

H
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1539
		if (ip_protocol == IPPROTO_TCP)
H
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1540
			opts2 |= TCP_CS;
H
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1541
		else if (ip_protocol == IPPROTO_UDP)
H
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1542
			opts2 |= UDP_CS;
H
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1543
		else
H
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1544 1545
			WARN_ON_ONCE(1);

H
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1546
		opts2 |= transport_offset << TCPHO_SHIFT;
H
hayeswang 已提交
1547
	}
H
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1548 1549 1550 1551

	desc->opts2 = cpu_to_le32(opts2);
	desc->opts1 = cpu_to_le32(opts1);

H
hayeswang 已提交
1552
unavailable:
H
hayeswang 已提交
1553
	return ret;
H
hayeswang 已提交
1554 1555
}

H
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1556 1557
static int r8152_tx_agg_fill(struct r8152 *tp, struct tx_agg *agg)
{
1558
	struct sk_buff_head skb_head, *tx_queue = &tp->tx_queue;
H
hayeswang 已提交
1559
	int remain, ret;
H
hayeswang 已提交
1560 1561
	u8 *tx_data;

1562
	__skb_queue_head_init(&skb_head);
1563
	spin_lock(&tx_queue->lock);
1564
	skb_queue_splice_init(tx_queue, &skb_head);
1565
	spin_unlock(&tx_queue->lock);
1566

H
hayeswang 已提交
1567
	tx_data = agg->head;
H
hayeswang 已提交
1568 1569
	agg->skb_num = 0;
	agg->skb_len = 0;
H
hayeswang 已提交
1570
	remain = agg_buf_sz;
H
hayeswang 已提交
1571

H
hayeswang 已提交
1572
	while (remain >= ETH_ZLEN + sizeof(struct tx_desc)) {
H
hayeswang 已提交
1573 1574 1575
		struct tx_desc *tx_desc;
		struct sk_buff *skb;
		unsigned int len;
H
hayeswang 已提交
1576
		u32 offset;
H
hayeswang 已提交
1577

1578
		skb = __skb_dequeue(&skb_head);
H
hayeswang 已提交
1579 1580 1581
		if (!skb)
			break;

H
hayeswang 已提交
1582 1583 1584
		len = skb->len + sizeof(*tx_desc);

		if (len > remain) {
1585
			__skb_queue_head(&skb_head, skb);
H
hayeswang 已提交
1586 1587 1588
			break;
		}

H
hayeswang 已提交
1589
		tx_data = tx_agg_align(tx_data);
H
hayeswang 已提交
1590
		tx_desc = (struct tx_desc *)tx_data;
H
hayeswang 已提交
1591 1592 1593

		offset = (u32)skb_transport_offset(skb);

H
hayeswang 已提交
1594 1595 1596 1597
		if (r8152_tx_csum(tp, tx_desc, skb, skb->len, offset)) {
			r8152_csum_workaround(tp, skb, &skb_head);
			continue;
		}
H
hayeswang 已提交
1598

H
hayeswang 已提交
1599 1600
		rtl_tx_vlan_tag(tx_desc, skb);

H
hayeswang 已提交
1601 1602
		tx_data += sizeof(*tx_desc);

H
hayeswang 已提交
1603 1604 1605 1606 1607 1608 1609 1610 1611 1612 1613
		len = skb->len;
		if (skb_copy_bits(skb, 0, tx_data, len) < 0) {
			struct net_device_stats *stats = &tp->netdev->stats;

			stats->tx_dropped++;
			dev_kfree_skb_any(skb);
			tx_data -= sizeof(*tx_desc);
			continue;
		}

		tx_data += len;
H
hayeswang 已提交
1614
		agg->skb_len += len;
H
hayeswang 已提交
1615 1616
		agg->skb_num++;

H
hayeswang 已提交
1617 1618
		dev_kfree_skb_any(skb);

H
hayeswang 已提交
1619
		remain = agg_buf_sz - (int)(tx_agg_align(tx_data) - agg->head);
H
hayeswang 已提交
1620 1621
	}

1622
	if (!skb_queue_empty(&skb_head)) {
1623
		spin_lock(&tx_queue->lock);
1624
		skb_queue_splice(&skb_head, tx_queue);
1625
		spin_unlock(&tx_queue->lock);
1626 1627
	}

1628
	netif_tx_lock(tp->netdev);
1629 1630 1631 1632 1633

	if (netif_queue_stopped(tp->netdev) &&
	    skb_queue_len(&tp->tx_queue) < tp->tx_qlen)
		netif_wake_queue(tp->netdev);

1634
	netif_tx_unlock(tp->netdev);
H
hayeswang 已提交
1635

1636
	ret = usb_autopm_get_interface_async(tp->intf);
H
hayeswang 已提交
1637 1638
	if (ret < 0)
		goto out_tx_fill;
1639

H
hayeswang 已提交
1640 1641 1642 1643
	usb_fill_bulk_urb(agg->urb, tp->udev, usb_sndbulkpipe(tp->udev, 2),
			  agg->head, (int)(tx_data - (u8 *)agg->head),
			  (usb_complete_t)write_bulk_callback, agg);

1644
	ret = usb_submit_urb(agg->urb, GFP_ATOMIC);
H
hayeswang 已提交
1645
	if (ret < 0)
1646
		usb_autopm_put_interface_async(tp->intf);
H
hayeswang 已提交
1647 1648 1649

out_tx_fill:
	return ret;
H
hayeswang 已提交
1650 1651
}

H
hayeswang 已提交
1652 1653 1654 1655 1656 1657 1658 1659 1660 1661 1662 1663 1664 1665 1666 1667 1668 1669 1670 1671
static u8 r8152_rx_csum(struct r8152 *tp, struct rx_desc *rx_desc)
{
	u8 checksum = CHECKSUM_NONE;
	u32 opts2, opts3;

	if (tp->version == RTL_VER_01)
		goto return_result;

	opts2 = le32_to_cpu(rx_desc->opts2);
	opts3 = le32_to_cpu(rx_desc->opts3);

	if (opts2 & RD_IPV4_CS) {
		if (opts3 & IPF)
			checksum = CHECKSUM_NONE;
		else if ((opts2 & RD_UDP_CS) && (opts3 & UDPF))
			checksum = CHECKSUM_NONE;
		else if ((opts2 & RD_TCP_CS) && (opts3 & TCPF))
			checksum = CHECKSUM_NONE;
		else
			checksum = CHECKSUM_UNNECESSARY;
H
hayeswang 已提交
1672 1673 1674 1675 1676
	} else if (RD_IPV6_CS) {
		if ((opts2 & RD_UDP_CS) && !(opts3 & UDPF))
			checksum = CHECKSUM_UNNECESSARY;
		else if ((opts2 & RD_TCP_CS) && !(opts3 & TCPF))
			checksum = CHECKSUM_UNNECESSARY;
H
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1677 1678 1679 1680 1681 1682
	}

return_result:
	return checksum;
}

H
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1683
static int rx_bottom(struct r8152 *tp, int budget)
H
hayeswang 已提交
1684
{
H
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1685
	unsigned long flags;
1686
	struct list_head *cursor, *next, rx_queue;
H
hayeswang 已提交
1687
	int ret = 0, work_done = 0;
H
hayeswang 已提交
1688 1689 1690 1691 1692 1693 1694 1695 1696 1697 1698 1699 1700 1701 1702 1703 1704 1705

	if (!skb_queue_empty(&tp->rx_queue)) {
		while (work_done < budget) {
			struct sk_buff *skb = __skb_dequeue(&tp->rx_queue);
			struct net_device *netdev = tp->netdev;
			struct net_device_stats *stats = &netdev->stats;
			unsigned int pkt_len;

			if (!skb)
				break;

			pkt_len = skb->len;
			napi_gro_receive(&tp->napi, skb);
			work_done++;
			stats->rx_packets++;
			stats->rx_bytes += pkt_len;
		}
	}
H
hayeswang 已提交
1706

1707
	if (list_empty(&tp->rx_done))
H
hayeswang 已提交
1708
		goto out1;
1709 1710

	INIT_LIST_HEAD(&rx_queue);
H
hayeswang 已提交
1711
	spin_lock_irqsave(&tp->rx_lock, flags);
1712 1713 1714 1715
	list_splice_init(&tp->rx_done, &rx_queue);
	spin_unlock_irqrestore(&tp->rx_lock, flags);

	list_for_each_safe(cursor, next, &rx_queue) {
1716 1717 1718 1719 1720 1721
		struct rx_desc *rx_desc;
		struct rx_agg *agg;
		int len_used = 0;
		struct urb *urb;
		u8 *rx_data;

H
hayeswang 已提交
1722 1723 1724 1725
		list_del_init(cursor);

		agg = list_entry(cursor, struct rx_agg, list);
		urb = agg->urb;
H
hayeswang 已提交
1726 1727
		if (urb->actual_length < ETH_ZLEN)
			goto submit;
H
hayeswang 已提交
1728 1729 1730

		rx_desc = agg->head;
		rx_data = agg->head;
H
hayeswang 已提交
1731
		len_used += sizeof(struct rx_desc);
H
hayeswang 已提交
1732

H
hayeswang 已提交
1733
		while (urb->actual_length > len_used) {
1734
			struct net_device *netdev = tp->netdev;
H
hayeswang 已提交
1735
			struct net_device_stats *stats = &netdev->stats;
H
hayeswang 已提交
1736
			unsigned int pkt_len;
1737 1738
			struct sk_buff *skb;

H
hayeswang 已提交
1739
			pkt_len = le32_to_cpu(rx_desc->opts1) & RX_LEN_MASK;
H
hayeswang 已提交
1740 1741 1742
			if (pkt_len < ETH_ZLEN)
				break;

H
hayeswang 已提交
1743 1744 1745 1746
			len_used += pkt_len;
			if (urb->actual_length < len_used)
				break;

H
hayeswang 已提交
1747
			pkt_len -= CRC_SIZE;
H
hayeswang 已提交
1748 1749 1750 1751 1752
			rx_data += sizeof(struct rx_desc);

			skb = netdev_alloc_skb_ip_align(netdev, pkt_len);
			if (!skb) {
				stats->rx_dropped++;
1753
				goto find_next_rx;
H
hayeswang 已提交
1754
			}
H
hayeswang 已提交
1755 1756

			skb->ip_summed = r8152_rx_csum(tp, rx_desc);
H
hayeswang 已提交
1757 1758 1759
			memcpy(skb->data, rx_data, pkt_len);
			skb_put(skb, pkt_len);
			skb->protocol = eth_type_trans(skb, netdev);
H
hayeswang 已提交
1760
			rtl_rx_vlan_tag(rx_desc, skb);
H
hayeswang 已提交
1761 1762 1763 1764 1765 1766 1767 1768
			if (work_done < budget) {
				napi_gro_receive(&tp->napi, skb);
				work_done++;
				stats->rx_packets++;
				stats->rx_bytes += pkt_len;
			} else {
				__skb_queue_tail(&tp->rx_queue, skb);
			}
H
hayeswang 已提交
1769

1770
find_next_rx:
H
hayeswang 已提交
1771
			rx_data = rx_agg_align(rx_data + pkt_len + CRC_SIZE);
H
hayeswang 已提交
1772 1773
			rx_desc = (struct rx_desc *)rx_data;
			len_used = (int)(rx_data - (u8 *)agg->head);
H
hayeswang 已提交
1774
			len_used += sizeof(struct rx_desc);
H
hayeswang 已提交
1775 1776
		}

H
hayeswang 已提交
1777
submit:
H
hayeswang 已提交
1778 1779 1780 1781 1782 1783 1784 1785 1786 1787 1788 1789
		if (!ret) {
			ret = r8152_submit_rx(tp, agg, GFP_ATOMIC);
		} else {
			urb->actual_length = 0;
			list_add_tail(&agg->list, next);
		}
	}

	if (!list_empty(&rx_queue)) {
		spin_lock_irqsave(&tp->rx_lock, flags);
		list_splice_tail(&rx_queue, &tp->rx_done);
		spin_unlock_irqrestore(&tp->rx_lock, flags);
H
hayeswang 已提交
1790
	}
H
hayeswang 已提交
1791 1792 1793

out1:
	return work_done;
H
hayeswang 已提交
1794 1795 1796 1797 1798 1799
}

static void tx_bottom(struct r8152 *tp)
{
	int res;

H
hayeswang 已提交
1800 1801
	do {
		struct tx_agg *agg;
H
hayeswang 已提交
1802

H
hayeswang 已提交
1803
		if (skb_queue_empty(&tp->tx_queue))
H
hayeswang 已提交
1804 1805
			break;

H
hayeswang 已提交
1806 1807
		agg = r8152_get_tx_agg(tp);
		if (!agg)
H
hayeswang 已提交
1808 1809
			break;

H
hayeswang 已提交
1810 1811
		res = r8152_tx_agg_fill(tp, agg);
		if (res) {
H
hayeswang 已提交
1812
			struct net_device *netdev = tp->netdev;
H
hayeswang 已提交
1813

H
hayeswang 已提交
1814
			if (res == -ENODEV) {
1815
				set_bit(RTL8152_UNPLUG, &tp->flags);
H
hayeswang 已提交
1816 1817
				netif_device_detach(netdev);
			} else {
H
hayeswang 已提交
1818 1819 1820
				struct net_device_stats *stats = &netdev->stats;
				unsigned long flags;

H
hayeswang 已提交
1821 1822 1823
				netif_warn(tp, tx_err, netdev,
					   "failed tx_urb %d\n", res);
				stats->tx_dropped += agg->skb_num;
1824

H
hayeswang 已提交
1825 1826 1827 1828
				spin_lock_irqsave(&tp->tx_lock, flags);
				list_add_tail(&agg->list, &tp->tx_free);
				spin_unlock_irqrestore(&tp->tx_lock, flags);
			}
H
hayeswang 已提交
1829
		}
H
hayeswang 已提交
1830
	} while (res == 0);
H
hayeswang 已提交
1831 1832
}

H
hayeswang 已提交
1833
static void bottom_half(struct r8152 *tp)
H
hayeswang 已提交
1834
{
H
hayeswang 已提交
1835 1836 1837 1838
	if (test_bit(RTL8152_UNPLUG, &tp->flags))
		return;

	if (!test_bit(WORK_ENABLE, &tp->flags))
H
hayeswang 已提交
1839
		return;
H
hayeswang 已提交
1840

H
hayeswang 已提交
1841 1842
	/* When link down, the driver would cancel all bulks. */
	/* This avoid the re-submitting bulk */
H
hayeswang 已提交
1843
	if (!netif_carrier_ok(tp->netdev))
H
hayeswang 已提交
1844
		return;
H
hayeswang 已提交
1845

H
hayeswang 已提交
1846
	clear_bit(SCHEDULE_NAPI, &tp->flags);
1847

1848
	tx_bottom(tp);
H
hayeswang 已提交
1849 1850
}

H
hayeswang 已提交
1851 1852 1853 1854 1855 1856 1857 1858 1859 1860 1861 1862 1863 1864 1865 1866 1867
static int r8152_poll(struct napi_struct *napi, int budget)
{
	struct r8152 *tp = container_of(napi, struct r8152, napi);
	int work_done;

	work_done = rx_bottom(tp, budget);
	bottom_half(tp);

	if (work_done < budget) {
		napi_complete(napi);
		if (!list_empty(&tp->rx_done))
			napi_schedule(napi);
	}

	return work_done;
}

H
hayeswang 已提交
1868 1869 1870
static
int r8152_submit_rx(struct r8152 *tp, struct rx_agg *agg, gfp_t mem_flags)
{
H
hayeswang 已提交
1871 1872
	int ret;

1873 1874 1875 1876 1877
	/* The rx would be stopped, so skip submitting */
	if (test_bit(RTL8152_UNPLUG, &tp->flags) ||
	    !test_bit(WORK_ENABLE, &tp->flags) || !netif_carrier_ok(tp->netdev))
		return 0;

H
hayeswang 已提交
1878
	usb_fill_bulk_urb(agg->urb, tp->udev, usb_rcvbulkpipe(tp->udev, 1),
H
hayeswang 已提交
1879
			  agg->head, agg_buf_sz,
H
hayeswang 已提交
1880
			  (usb_complete_t)read_bulk_callback, agg);
H
hayeswang 已提交
1881

H
hayeswang 已提交
1882 1883 1884 1885 1886 1887 1888 1889 1890 1891 1892 1893
	ret = usb_submit_urb(agg->urb, mem_flags);
	if (ret == -ENODEV) {
		set_bit(RTL8152_UNPLUG, &tp->flags);
		netif_device_detach(tp->netdev);
	} else if (ret) {
		struct urb *urb = agg->urb;
		unsigned long flags;

		urb->actual_length = 0;
		spin_lock_irqsave(&tp->rx_lock, flags);
		list_add_tail(&agg->list, &tp->rx_done);
		spin_unlock_irqrestore(&tp->rx_lock, flags);
H
hayeswang 已提交
1894 1895 1896 1897 1898

		netif_err(tp, rx_err, tp->netdev,
			  "Couldn't submit rx[%p], ret = %d\n", agg, ret);

		napi_schedule(&tp->napi);
H
hayeswang 已提交
1899 1900 1901
	}

	return ret;
H
hayeswang 已提交
1902 1903
}

H
hayeswang 已提交
1904 1905 1906
static void rtl_drop_queued_tx(struct r8152 *tp)
{
	struct net_device_stats *stats = &tp->netdev->stats;
1907
	struct sk_buff_head skb_head, *tx_queue = &tp->tx_queue;
H
hayeswang 已提交
1908 1909
	struct sk_buff *skb;

1910 1911 1912 1913
	if (skb_queue_empty(tx_queue))
		return;

	__skb_queue_head_init(&skb_head);
1914
	spin_lock_bh(&tx_queue->lock);
1915
	skb_queue_splice_init(tx_queue, &skb_head);
1916
	spin_unlock_bh(&tx_queue->lock);
1917 1918

	while ((skb = __skb_dequeue(&skb_head))) {
H
hayeswang 已提交
1919 1920 1921 1922 1923
		dev_kfree_skb(skb);
		stats->tx_dropped++;
	}
}

H
hayeswang 已提交
1924 1925 1926
static void rtl8152_tx_timeout(struct net_device *netdev)
{
	struct r8152 *tp = netdev_priv(netdev);
H
hayeswang 已提交
1927

H
Hayes Wang 已提交
1928
	netif_warn(tp, tx_err, netdev, "Tx timeout\n");
H
hayeswang 已提交
1929 1930

	usb_queue_reset_device(tp->intf);
H
hayeswang 已提交
1931 1932 1933 1934 1935 1936
}

static void rtl8152_set_rx_mode(struct net_device *netdev)
{
	struct r8152 *tp = netdev_priv(netdev);

1937
	if (netif_carrier_ok(netdev)) {
H
hayeswang 已提交
1938
		set_bit(RTL8152_SET_RX_MODE, &tp->flags);
1939 1940
		schedule_delayed_work(&tp->schedule, 0);
	}
H
hayeswang 已提交
1941 1942 1943 1944 1945
}

static void _rtl8152_set_rx_mode(struct net_device *netdev)
{
	struct r8152 *tp = netdev_priv(netdev);
1946 1947
	u32 mc_filter[2];	/* Multicast hash filter */
	__le32 tmp[2];
H
hayeswang 已提交
1948 1949 1950 1951 1952 1953 1954 1955 1956 1957 1958
	u32 ocp_data;

	netif_stop_queue(netdev);
	ocp_data = ocp_read_dword(tp, MCU_TYPE_PLA, PLA_RCR);
	ocp_data &= ~RCR_ACPT_ALL;
	ocp_data |= RCR_AB | RCR_APM;

	if (netdev->flags & IFF_PROMISC) {
		/* Unconditionally log net taps. */
		netif_notice(tp, link, netdev, "Promiscuous mode enabled\n");
		ocp_data |= RCR_AM | RCR_AAP;
H
hayeswang 已提交
1959 1960
		mc_filter[1] = 0xffffffff;
		mc_filter[0] = 0xffffffff;
H
hayeswang 已提交
1961 1962 1963 1964
	} else if ((netdev_mc_count(netdev) > multicast_filter_limit) ||
		   (netdev->flags & IFF_ALLMULTI)) {
		/* Too many to filter perfectly -- accept all multicasts. */
		ocp_data |= RCR_AM;
H
hayeswang 已提交
1965 1966
		mc_filter[1] = 0xffffffff;
		mc_filter[0] = 0xffffffff;
H
hayeswang 已提交
1967 1968 1969
	} else {
		struct netdev_hw_addr *ha;

H
hayeswang 已提交
1970 1971
		mc_filter[1] = 0;
		mc_filter[0] = 0;
H
hayeswang 已提交
1972 1973
		netdev_for_each_mc_addr(ha, netdev) {
			int bit_nr = ether_crc(ETH_ALEN, ha->addr) >> 26;
H
hayeswang 已提交
1974

H
hayeswang 已提交
1975 1976 1977 1978 1979
			mc_filter[bit_nr >> 5] |= 1 << (bit_nr & 31);
			ocp_data |= RCR_AM;
		}
	}

1980 1981
	tmp[0] = __cpu_to_le32(swab32(mc_filter[1]));
	tmp[1] = __cpu_to_le32(swab32(mc_filter[0]));
H
hayeswang 已提交
1982

1983
	pla_ocp_write(tp, PLA_MAR, BYTE_EN_DWORD, sizeof(tmp), tmp);
H
hayeswang 已提交
1984 1985 1986 1987
	ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RCR, ocp_data);
	netif_wake_queue(netdev);
}

H
hayeswang 已提交
1988 1989 1990 1991 1992 1993 1994 1995 1996
static netdev_features_t
rtl8152_features_check(struct sk_buff *skb, struct net_device *dev,
		       netdev_features_t features)
{
	u32 mss = skb_shinfo(skb)->gso_size;
	int max_offset = mss ? GTTCPHO_MAX : TCPHO_MAX;
	int offset = skb_transport_offset(skb);

	if ((mss || skb->ip_summed == CHECKSUM_PARTIAL) && offset > max_offset)
1997
		features &= ~(NETIF_F_CSUM_MASK | NETIF_F_GSO_MASK);
H
hayeswang 已提交
1998 1999 2000 2001 2002 2003
	else if ((skb->len + sizeof(struct tx_desc)) > agg_buf_sz)
		features &= ~NETIF_F_GSO_MASK;

	return features;
}

H
hayeswang 已提交
2004
static netdev_tx_t rtl8152_start_xmit(struct sk_buff *skb,
H
hayeswang 已提交
2005
				      struct net_device *netdev)
H
hayeswang 已提交
2006 2007 2008
{
	struct r8152 *tp = netdev_priv(netdev);

H
hayeswang 已提交
2009
	skb_tx_timestamp(skb);
H
hayeswang 已提交
2010

H
hayeswang 已提交
2011
	skb_queue_tail(&tp->tx_queue, skb);
H
hayeswang 已提交
2012

2013 2014
	if (!list_empty(&tp->tx_free)) {
		if (test_bit(SELECTIVE_SUSPEND, &tp->flags)) {
H
hayeswang 已提交
2015
			set_bit(SCHEDULE_NAPI, &tp->flags);
2016 2017 2018
			schedule_delayed_work(&tp->schedule, 0);
		} else {
			usb_mark_last_busy(tp->udev);
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			napi_schedule(&tp->napi);
2020
		}
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	} else if (skb_queue_len(&tp->tx_queue) > tp->tx_qlen) {
2022
		netif_stop_queue(netdev);
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	}
2024

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	return NETDEV_TX_OK;
}

static void r8152b_reset_packet_filter(struct r8152 *tp)
{
	u32	ocp_data;

	ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_FMC);
	ocp_data &= ~FMC_FCR_MCU_EN;
	ocp_write_word(tp, MCU_TYPE_PLA, PLA_FMC, ocp_data);
	ocp_data |= FMC_FCR_MCU_EN;
	ocp_write_word(tp, MCU_TYPE_PLA, PLA_FMC, ocp_data);
}

static void rtl8152_nic_reset(struct r8152 *tp)
{
	int	i;

	ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CR, CR_RST);

	for (i = 0; i < 1000; i++) {
		if (!(ocp_read_byte(tp, MCU_TYPE_PLA, PLA_CR) & CR_RST))
			break;
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		usleep_range(100, 400);
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	}
}

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static void set_tx_qlen(struct r8152 *tp)
{
	struct net_device *netdev = tp->netdev;

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	tp->tx_qlen = agg_buf_sz / (netdev->mtu + VLAN_ETH_HLEN + VLAN_HLEN +
				    sizeof(struct tx_desc));
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}

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static inline u8 rtl8152_get_speed(struct r8152 *tp)
{
	return ocp_read_byte(tp, MCU_TYPE_PLA, PLA_PHYSTATUS);
}

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static void rtl_set_eee_plus(struct r8152 *tp)
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{
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	u32 ocp_data;
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	u8 speed;

	speed = rtl8152_get_speed(tp);
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	if (speed & _10bps) {
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		ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_EEEP_CR);
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		ocp_data |= EEEP_CR_EEEP_TX;
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		ocp_write_word(tp, MCU_TYPE_PLA, PLA_EEEP_CR, ocp_data);
	} else {
		ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_EEEP_CR);
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		ocp_data &= ~EEEP_CR_EEEP_TX;
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		ocp_write_word(tp, MCU_TYPE_PLA, PLA_EEEP_CR, ocp_data);
	}
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}

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static void rxdy_gated_en(struct r8152 *tp, bool enable)
{
	u32 ocp_data;

	ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_MISC_1);
	if (enable)
		ocp_data |= RXDY_GATED_EN;
	else
		ocp_data &= ~RXDY_GATED_EN;
	ocp_write_word(tp, MCU_TYPE_PLA, PLA_MISC_1, ocp_data);
}

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static int rtl_start_rx(struct r8152 *tp)
{
	int i, ret = 0;

	INIT_LIST_HEAD(&tp->rx_done);
	for (i = 0; i < RTL8152_MAX_RX; i++) {
		INIT_LIST_HEAD(&tp->rx_info[i].list);
		ret = r8152_submit_rx(tp, &tp->rx_info[i], GFP_KERNEL);
		if (ret)
			break;
	}

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	if (ret && ++i < RTL8152_MAX_RX) {
		struct list_head rx_queue;
		unsigned long flags;

		INIT_LIST_HEAD(&rx_queue);

		do {
			struct rx_agg *agg = &tp->rx_info[i++];
			struct urb *urb = agg->urb;

			urb->actual_length = 0;
			list_add_tail(&agg->list, &rx_queue);
		} while (i < RTL8152_MAX_RX);

		spin_lock_irqsave(&tp->rx_lock, flags);
		list_splice_tail(&rx_queue, &tp->rx_done);
		spin_unlock_irqrestore(&tp->rx_lock, flags);
	}

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	return ret;
}

static int rtl_stop_rx(struct r8152 *tp)
{
	int i;

	for (i = 0; i < RTL8152_MAX_RX; i++)
		usb_kill_urb(tp->rx_info[i].urb);

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	while (!skb_queue_empty(&tp->rx_queue))
		dev_kfree_skb(__skb_dequeue(&tp->rx_queue));

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	return 0;
}

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static int rtl_enable(struct r8152 *tp)
{
	u32 ocp_data;
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	r8152b_reset_packet_filter(tp);

	ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_CR);
	ocp_data |= CR_RE | CR_TE;
	ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CR, ocp_data);

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	rxdy_gated_en(tp, false);
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	return 0;
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}

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static int rtl8152_enable(struct r8152 *tp)
{
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	if (test_bit(RTL8152_UNPLUG, &tp->flags))
		return -ENODEV;

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	set_tx_qlen(tp);
	rtl_set_eee_plus(tp);

	return rtl_enable(tp);
}

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static void r8153_set_rx_early_timeout(struct r8152 *tp)
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{
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	u32 ocp_data = tp->coalesce / 8;
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	ocp_write_word(tp, MCU_TYPE_USB, USB_RX_EARLY_TIMEOUT, ocp_data);
}

static void r8153_set_rx_early_size(struct r8152 *tp)
{
	u32 mtu = tp->netdev->mtu;
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	u32 ocp_data = (agg_buf_sz - mtu - VLAN_ETH_HLEN - VLAN_HLEN) / 8;
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	ocp_write_word(tp, MCU_TYPE_USB, USB_RX_EARLY_SIZE, ocp_data);
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}

static int rtl8153_enable(struct r8152 *tp)
{
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	if (test_bit(RTL8152_UNPLUG, &tp->flags))
		return -ENODEV;

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	usb_disable_lpm(tp->udev);
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	set_tx_qlen(tp);
	rtl_set_eee_plus(tp);
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	r8153_set_rx_early_timeout(tp);
	r8153_set_rx_early_size(tp);
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	return rtl_enable(tp);
}

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static void rtl_disable(struct r8152 *tp)
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{
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	u32 ocp_data;
	int i;
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	if (test_bit(RTL8152_UNPLUG, &tp->flags)) {
		rtl_drop_queued_tx(tp);
		return;
	}

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	ocp_data = ocp_read_dword(tp, MCU_TYPE_PLA, PLA_RCR);
	ocp_data &= ~RCR_ACPT_ALL;
	ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RCR, ocp_data);

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	rtl_drop_queued_tx(tp);
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	for (i = 0; i < RTL8152_MAX_TX; i++)
		usb_kill_urb(tp->tx_info[i].urb);
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	rxdy_gated_en(tp, true);
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	for (i = 0; i < 1000; i++) {
		ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
		if ((ocp_data & FIFO_EMPTY) == FIFO_EMPTY)
			break;
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		usleep_range(1000, 2000);
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	}

	for (i = 0; i < 1000; i++) {
		if (ocp_read_word(tp, MCU_TYPE_PLA, PLA_TCR0) & TCR0_TX_EMPTY)
			break;
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		usleep_range(1000, 2000);
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	}

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	rtl_stop_rx(tp);
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	rtl8152_nic_reset(tp);
}

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static void r8152_power_cut_en(struct r8152 *tp, bool enable)
{
	u32 ocp_data;

	ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_UPS_CTRL);
	if (enable)
		ocp_data |= POWER_CUT;
	else
		ocp_data &= ~POWER_CUT;
	ocp_write_word(tp, MCU_TYPE_USB, USB_UPS_CTRL, ocp_data);

	ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_PM_CTRL_STATUS);
	ocp_data &= ~RESUME_INDICATE;
	ocp_write_word(tp, MCU_TYPE_USB, USB_PM_CTRL_STATUS, ocp_data);
}

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static void rtl_rx_vlan_en(struct r8152 *tp, bool enable)
{
	u32 ocp_data;

	ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_CPCR);
	if (enable)
		ocp_data |= CPCR_RX_VLAN;
	else
		ocp_data &= ~CPCR_RX_VLAN;
	ocp_write_word(tp, MCU_TYPE_PLA, PLA_CPCR, ocp_data);
}

static int rtl8152_set_features(struct net_device *dev,
				netdev_features_t features)
{
	netdev_features_t changed = features ^ dev->features;
	struct r8152 *tp = netdev_priv(dev);
2268 2269 2270 2271 2272
	int ret;

	ret = usb_autopm_get_interface(tp->intf);
	if (ret < 0)
		goto out;
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	mutex_lock(&tp->control);

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	if (changed & NETIF_F_HW_VLAN_CTAG_RX) {
		if (features & NETIF_F_HW_VLAN_CTAG_RX)
			rtl_rx_vlan_en(tp, true);
		else
			rtl_rx_vlan_en(tp, false);
	}

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	mutex_unlock(&tp->control);

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	usb_autopm_put_interface(tp->intf);

out:
	return ret;
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}

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#define WAKE_ANY (WAKE_PHY | WAKE_MAGIC | WAKE_UCAST | WAKE_BCAST | WAKE_MCAST)

static u32 __rtl_get_wol(struct r8152 *tp)
{
	u32 ocp_data;
	u32 wolopts = 0;

	ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_CONFIG5);
	if (!(ocp_data & LAN_WAKE_EN))
		return 0;

	ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_CONFIG34);
	if (ocp_data & LINK_ON_WAKE_EN)
		wolopts |= WAKE_PHY;

	ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_CONFIG5);
	if (ocp_data & UWF_EN)
		wolopts |= WAKE_UCAST;
	if (ocp_data & BWF_EN)
		wolopts |= WAKE_BCAST;
	if (ocp_data & MWF_EN)
		wolopts |= WAKE_MCAST;

	ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_CFG_WOL);
	if (ocp_data & MAGIC_EN)
		wolopts |= WAKE_MAGIC;

	return wolopts;
}

static void __rtl_set_wol(struct r8152 *tp, u32 wolopts)
{
	u32 ocp_data;

	ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CRWECR, CRWECR_CONFIG);

	ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_CONFIG34);
	ocp_data &= ~LINK_ON_WAKE_EN;
	if (wolopts & WAKE_PHY)
		ocp_data |= LINK_ON_WAKE_EN;
	ocp_write_word(tp, MCU_TYPE_PLA, PLA_CONFIG34, ocp_data);

	ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_CONFIG5);
	ocp_data &= ~(UWF_EN | BWF_EN | MWF_EN | LAN_WAKE_EN);
	if (wolopts & WAKE_UCAST)
		ocp_data |= UWF_EN;
	if (wolopts & WAKE_BCAST)
		ocp_data |= BWF_EN;
	if (wolopts & WAKE_MCAST)
		ocp_data |= MWF_EN;
	if (wolopts & WAKE_ANY)
		ocp_data |= LAN_WAKE_EN;
	ocp_write_word(tp, MCU_TYPE_PLA, PLA_CONFIG5, ocp_data);

	ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CRWECR, CRWECR_NORAML);

	ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_CFG_WOL);
	ocp_data &= ~MAGIC_EN;
	if (wolopts & WAKE_MAGIC)
		ocp_data |= MAGIC_EN;
	ocp_write_word(tp, MCU_TYPE_PLA, PLA_CFG_WOL, ocp_data);

	if (wolopts & WAKE_ANY)
		device_set_wakeup_enable(&tp->udev->dev, true);
	else
		device_set_wakeup_enable(&tp->udev->dev, false);
}

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static void r8153_u1u2en(struct r8152 *tp, bool enable)
{
	u8 u1u2[8];

	if (enable)
		memset(u1u2, 0xff, sizeof(u1u2));
	else
		memset(u1u2, 0x00, sizeof(u1u2));

	usb_ocp_write(tp, USB_TOLERANCE, BYTE_EN_SIX_BYTES, sizeof(u1u2), u1u2);
}

static void r8153_u2p3en(struct r8152 *tp, bool enable)
{
	u32 ocp_data;

	ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_U2P3_CTRL);
	if (enable && tp->version != RTL_VER_03 && tp->version != RTL_VER_04)
		ocp_data |= U2P3_ENABLE;
	else
		ocp_data &= ~U2P3_ENABLE;
	ocp_write_word(tp, MCU_TYPE_USB, USB_U2P3_CTRL, ocp_data);
}

static void r8153_power_cut_en(struct r8152 *tp, bool enable)
{
	u32 ocp_data;

	ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_POWER_CUT);
	if (enable)
		ocp_data |= PWR_EN | PHASE2_EN;
	else
		ocp_data &= ~(PWR_EN | PHASE2_EN);
	ocp_write_word(tp, MCU_TYPE_USB, USB_POWER_CUT, ocp_data);

	ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_MISC_0);
	ocp_data &= ~PCUT_STATUS;
	ocp_write_word(tp, MCU_TYPE_USB, USB_MISC_0, ocp_data);
}

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static bool rtl_can_wakeup(struct r8152 *tp)
{
	struct usb_device *udev = tp->udev;

	return (udev->actconfig->desc.bmAttributes & USB_CONFIG_ATT_WAKEUP);
}

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static void rtl_runtime_suspend_enable(struct r8152 *tp, bool enable)
{
	if (enable) {
		u32 ocp_data;

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		r8153_u1u2en(tp, false);
		r8153_u2p3en(tp, false);

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		__rtl_set_wol(tp, WAKE_ANY);

		ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CRWECR, CRWECR_CONFIG);

		ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_CONFIG34);
		ocp_data |= LINK_OFF_WAKE_EN;
		ocp_write_word(tp, MCU_TYPE_PLA, PLA_CONFIG34, ocp_data);

		ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CRWECR, CRWECR_NORAML);
	} else {
		__rtl_set_wol(tp, tp->saved_wolopts);
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		r8153_u2p3en(tp, true);
		r8153_u1u2en(tp, true);
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	}
}

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static void rtl_phy_reset(struct r8152 *tp)
{
	u16 data;
	int i;

	data = r8152_mdio_read(tp, MII_BMCR);

	/* don't reset again before the previous one complete */
	if (data & BMCR_RESET)
		return;

	data |= BMCR_RESET;
	r8152_mdio_write(tp, MII_BMCR, data);

	for (i = 0; i < 50; i++) {
		msleep(20);
		if ((r8152_mdio_read(tp, MII_BMCR) & BMCR_RESET) == 0)
			break;
	}
}

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static void r8153_teredo_off(struct r8152 *tp)
{
	u32 ocp_data;

	ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_TEREDO_CFG);
	ocp_data &= ~(TEREDO_SEL | TEREDO_RS_EVENT_MASK | OOB_TEREDO_EN);
	ocp_write_word(tp, MCU_TYPE_PLA, PLA_TEREDO_CFG, ocp_data);

	ocp_write_word(tp, MCU_TYPE_PLA, PLA_WDT6_CTRL, WDT6_SET_MODE);
	ocp_write_word(tp, MCU_TYPE_PLA, PLA_REALWOW_TIMER, 0);
	ocp_write_dword(tp, MCU_TYPE_PLA, PLA_TEREDO_TIMER, 0);
}

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static void rtl_reset_bmu(struct r8152 *tp)
{
	u32 ocp_data;

	ocp_data = ocp_read_byte(tp, MCU_TYPE_USB, USB_BMU_RESET);
	ocp_data &= ~(BMU_RESET_EP_IN | BMU_RESET_EP_OUT);
	ocp_write_byte(tp, MCU_TYPE_USB, USB_BMU_RESET, ocp_data);
	ocp_data |= BMU_RESET_EP_IN | BMU_RESET_EP_OUT;
	ocp_write_byte(tp, MCU_TYPE_USB, USB_BMU_RESET, ocp_data);
}

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static void r8152_aldps_en(struct r8152 *tp, bool enable)
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{
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	if (enable) {
		ocp_reg_write(tp, OCP_ALDPS_CONFIG, ENPWRSAVE | ENPDNPS |
						    LINKENA | DIS_SDSAVE);
	} else {
		ocp_reg_write(tp, OCP_ALDPS_CONFIG, ENPDNPS | LINKENA |
						    DIS_SDSAVE);
		msleep(20);
	}
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}

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static void rtl8152_disable(struct r8152 *tp)
{
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	r8152_aldps_en(tp, false);
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	rtl_disable(tp);
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	r8152_aldps_en(tp, true);
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}

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static void r8152b_hw_phy_cfg(struct r8152 *tp)
{
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	u16 data;

	data = r8152_mdio_read(tp, MII_BMCR);
	if (data & BMCR_PDOWN) {
		data &= ~BMCR_PDOWN;
		r8152_mdio_write(tp, MII_BMCR, data);
	}

2504
	set_bit(PHY_RESET, &tp->flags);
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}

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static void r8152b_exit_oob(struct r8152 *tp)
{
2509 2510
	u32 ocp_data;
	int i;
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	ocp_data = ocp_read_dword(tp, MCU_TYPE_PLA, PLA_RCR);
	ocp_data &= ~RCR_ACPT_ALL;
	ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RCR, ocp_data);

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	rxdy_gated_en(tp, true);
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2517
	r8153_teredo_off(tp);
2518
	r8152b_hw_phy_cfg(tp);
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2519 2520 2521 2522 2523 2524 2525 2526 2527 2528 2529 2530 2531 2532 2533 2534

	ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CRWECR, CRWECR_NORAML);
	ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CR, 0x00);

	ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
	ocp_data &= ~NOW_IS_OOB;
	ocp_write_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL, ocp_data);

	ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7);
	ocp_data &= ~MCU_BORW_EN;
	ocp_write_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7, ocp_data);

	for (i = 0; i < 1000; i++) {
		ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
		if (ocp_data & LINK_LIST_READY)
			break;
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		usleep_range(1000, 2000);
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	}

	ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7);
	ocp_data |= RE_INIT_LL;
	ocp_write_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7, ocp_data);

	for (i = 0; i < 1000; i++) {
		ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
		if (ocp_data & LINK_LIST_READY)
			break;
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		usleep_range(1000, 2000);
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	}

	rtl8152_nic_reset(tp);

	/* rx share fifo credit full threshold */
	ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL0, RXFIFO_THR1_NORMAL);

2554 2555
	if (tp->udev->speed == USB_SPEED_FULL ||
	    tp->udev->speed == USB_SPEED_LOW) {
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		/* rx share fifo credit near full threshold */
		ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL1,
				RXFIFO_THR2_FULL);
		ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL2,
				RXFIFO_THR3_FULL);
	} else {
		/* rx share fifo credit near full threshold */
		ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL1,
				RXFIFO_THR2_HIGH);
		ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL2,
				RXFIFO_THR3_HIGH);
	}

	/* TX share fifo free credit full threshold */
	ocp_write_dword(tp, MCU_TYPE_PLA, PLA_TXFIFO_CTRL, TXFIFO_THR_NORMAL);

	ocp_write_byte(tp, MCU_TYPE_USB, USB_TX_AGG, TX_AGG_MAX_THRESHOLD);
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	ocp_write_dword(tp, MCU_TYPE_USB, USB_RX_BUF_TH, RX_THR_HIGH);
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	ocp_write_dword(tp, MCU_TYPE_USB, USB_TX_DMA,
			TEST_MODE_DISABLE | TX_SIZE_ADJUST1);

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	rtl_rx_vlan_en(tp, tp->netdev->features & NETIF_F_HW_VLAN_CTAG_RX);
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	ocp_write_word(tp, MCU_TYPE_PLA, PLA_RMS, RTL8152_RMS);

	ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_TCR0);
	ocp_data |= TCR0_AUTO_FIFO;
	ocp_write_word(tp, MCU_TYPE_PLA, PLA_TCR0, ocp_data);
}

static void r8152b_enter_oob(struct r8152 *tp)
{
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	u32 ocp_data;
	int i;
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	ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
	ocp_data &= ~NOW_IS_OOB;
	ocp_write_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL, ocp_data);

	ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL0, RXFIFO_THR1_OOB);
	ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL1, RXFIFO_THR2_OOB);
	ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL2, RXFIFO_THR3_OOB);

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	rtl_disable(tp);
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	for (i = 0; i < 1000; i++) {
		ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
		if (ocp_data & LINK_LIST_READY)
			break;
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		usleep_range(1000, 2000);
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	}

	ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7);
	ocp_data |= RE_INIT_LL;
	ocp_write_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7, ocp_data);

	for (i = 0; i < 1000; i++) {
		ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
		if (ocp_data & LINK_LIST_READY)
			break;
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2616
		usleep_range(1000, 2000);
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2617 2618 2619 2620
	}

	ocp_write_word(tp, MCU_TYPE_PLA, PLA_RMS, RTL8152_RMS);

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2621
	rtl_rx_vlan_en(tp, true);
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	ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PAL_BDC_CR);
	ocp_data |= ALDPS_PROXY_MODE;
	ocp_write_word(tp, MCU_TYPE_PLA, PAL_BDC_CR, ocp_data);

	ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
	ocp_data |= NOW_IS_OOB | DIS_MCU_CLROOB;
	ocp_write_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL, ocp_data);

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	rxdy_gated_en(tp, false);
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2632 2633 2634 2635 2636 2637

	ocp_data = ocp_read_dword(tp, MCU_TYPE_PLA, PLA_RCR);
	ocp_data |= RCR_APM | RCR_AM | RCR_AB;
	ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RCR, ocp_data);
}

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static void r8153_hw_phy_cfg(struct r8152 *tp)
{
	u32 ocp_data;
	u16 data;

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	if (tp->version == RTL_VER_03 || tp->version == RTL_VER_04 ||
	    tp->version == RTL_VER_05)
		ocp_reg_write(tp, OCP_ADC_CFG, CKADSEL_L | ADC_EN | EN_EMI_L);

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	data = r8152_mdio_read(tp, MII_BMCR);
	if (data & BMCR_PDOWN) {
		data &= ~BMCR_PDOWN;
		r8152_mdio_write(tp, MII_BMCR, data);
	}
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	if (tp->version == RTL_VER_03) {
		data = ocp_reg_read(tp, OCP_EEE_CFG);
		data &= ~CTAP_SHORT_EN;
		ocp_reg_write(tp, OCP_EEE_CFG, data);
	}

	data = ocp_reg_read(tp, OCP_POWER_CFG);
	data |= EEE_CLKDIV_EN;
	ocp_reg_write(tp, OCP_POWER_CFG, data);

	data = ocp_reg_read(tp, OCP_DOWN_SPEED);
	data |= EN_10M_BGOFF;
	ocp_reg_write(tp, OCP_DOWN_SPEED, data);
	data = ocp_reg_read(tp, OCP_POWER_CFG);
	data |= EN_10M_PLLOFF;
	ocp_reg_write(tp, OCP_POWER_CFG, data);
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	sram_write(tp, SRAM_IMPEDANCE, 0x0b13);
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2670 2671 2672 2673 2674

	ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_PHY_PWR);
	ocp_data |= PFM_PWM_SWITCH;
	ocp_write_word(tp, MCU_TYPE_PLA, PLA_PHY_PWR, ocp_data);

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	/* Enable LPF corner auto tune */
	sram_write(tp, SRAM_LPF_CFG, 0xf70f);
H
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2677

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2678 2679 2680
	/* Adjust 10M Amplitude */
	sram_write(tp, SRAM_10M_AMP1, 0x00af);
	sram_write(tp, SRAM_10M_AMP2, 0x0208);
2681 2682

	set_bit(PHY_RESET, &tp->flags);
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}

static void r8153_first_init(struct r8152 *tp)
{
	u32 ocp_data;
	int i;

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2690
	rxdy_gated_en(tp, true);
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	r8153_teredo_off(tp);

	ocp_data = ocp_read_dword(tp, MCU_TYPE_PLA, PLA_RCR);
	ocp_data &= ~RCR_ACPT_ALL;
	ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RCR, ocp_data);

	r8153_hw_phy_cfg(tp);

	rtl8152_nic_reset(tp);
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2700
	rtl_reset_bmu(tp);
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	ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
	ocp_data &= ~NOW_IS_OOB;
	ocp_write_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL, ocp_data);

	ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7);
	ocp_data &= ~MCU_BORW_EN;
	ocp_write_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7, ocp_data);

	for (i = 0; i < 1000; i++) {
		ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
		if (ocp_data & LINK_LIST_READY)
			break;
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		usleep_range(1000, 2000);
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	}

	ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7);
	ocp_data |= RE_INIT_LL;
	ocp_write_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7, ocp_data);

	for (i = 0; i < 1000; i++) {
		ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
		if (ocp_data & LINK_LIST_READY)
			break;
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2725
		usleep_range(1000, 2000);
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	}

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2728
	rtl_rx_vlan_en(tp, tp->netdev->features & NETIF_F_HW_VLAN_CTAG_RX);
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2730 2731
	ocp_write_word(tp, MCU_TYPE_PLA, PLA_RMS, RTL8153_RMS);
	ocp_write_byte(tp, MCU_TYPE_PLA, PLA_MTPS, MTPS_JUMBO);
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	ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_TCR0);
	ocp_data |= TCR0_AUTO_FIFO;
	ocp_write_word(tp, MCU_TYPE_PLA, PLA_TCR0, ocp_data);

	rtl8152_nic_reset(tp);

	/* rx share fifo credit full threshold */
	ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL0, RXFIFO_THR1_NORMAL);
	ocp_write_word(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL1, RXFIFO_THR2_NORMAL);
	ocp_write_word(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL2, RXFIFO_THR3_NORMAL);
	/* TX share fifo free credit full threshold */
	ocp_write_dword(tp, MCU_TYPE_PLA, PLA_TXFIFO_CTRL, TXFIFO_THR_NORMAL2);

2746
	/* rx aggregation */
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	ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_USB_CTRL);
2748
	ocp_data &= ~(RX_AGG_DISABLE | RX_ZERO_EN);
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2749 2750 2751 2752 2753 2754 2755 2756 2757 2758 2759 2760
	ocp_write_word(tp, MCU_TYPE_USB, USB_USB_CTRL, ocp_data);
}

static void r8153_enter_oob(struct r8152 *tp)
{
	u32 ocp_data;
	int i;

	ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
	ocp_data &= ~NOW_IS_OOB;
	ocp_write_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL, ocp_data);

H
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2761
	rtl_disable(tp);
H
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2762
	rtl_reset_bmu(tp);
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2763 2764 2765 2766 2767

	for (i = 0; i < 1000; i++) {
		ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
		if (ocp_data & LINK_LIST_READY)
			break;
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2768
		usleep_range(1000, 2000);
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2769 2770 2771 2772 2773 2774 2775 2776 2777 2778
	}

	ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7);
	ocp_data |= RE_INIT_LL;
	ocp_write_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7, ocp_data);

	for (i = 0; i < 1000; i++) {
		ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
		if (ocp_data & LINK_LIST_READY)
			break;
H
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2779
		usleep_range(1000, 2000);
H
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2780 2781
	}

2782
	ocp_write_word(tp, MCU_TYPE_PLA, PLA_RMS, RTL8153_RMS);
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	ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_TEREDO_CFG);
	ocp_data &= ~TEREDO_WAKE_MASK;
	ocp_write_word(tp, MCU_TYPE_PLA, PLA_TEREDO_CFG, ocp_data);

H
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	rtl_rx_vlan_en(tp, true);
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	ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PAL_BDC_CR);
	ocp_data |= ALDPS_PROXY_MODE;
	ocp_write_word(tp, MCU_TYPE_PLA, PAL_BDC_CR, ocp_data);

	ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
	ocp_data |= NOW_IS_OOB | DIS_MCU_CLROOB;
	ocp_write_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL, ocp_data);

H
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2798
	rxdy_gated_en(tp, false);
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2799 2800 2801 2802 2803 2804

	ocp_data = ocp_read_dword(tp, MCU_TYPE_PLA, PLA_RCR);
	ocp_data |= RCR_APM | RCR_AM | RCR_AB;
	ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RCR, ocp_data);
}

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static void r8153_aldps_en(struct r8152 *tp, bool enable)
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2806 2807 2808 2809
{
	u16 data;

	data = ocp_reg_read(tp, OCP_POWER_CFG);
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	if (enable) {
		data |= EN_ALDPS;
		ocp_reg_write(tp, OCP_POWER_CFG, data);
	} else {
		data &= ~EN_ALDPS;
		ocp_reg_write(tp, OCP_POWER_CFG, data);
		msleep(20);
	}
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}

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2820 2821
static void rtl8153_disable(struct r8152 *tp)
{
H
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2822
	r8153_aldps_en(tp, false);
H
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2823
	rtl_disable(tp);
H
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2824
	rtl_reset_bmu(tp);
H
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2825
	r8153_aldps_en(tp, true);
H
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2826
	usb_enable_lpm(tp->udev);
H
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2827 2828
}

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static int rtl8152_set_speed(struct r8152 *tp, u8 autoneg, u16 speed, u8 duplex)
{
H
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2831
	u16 bmcr, anar, gbcr;
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	int ret = 0;

	cancel_delayed_work_sync(&tp->schedule);
	anar = r8152_mdio_read(tp, MII_ADVERTISE);
	anar &= ~(ADVERTISE_10HALF | ADVERTISE_10FULL |
		  ADVERTISE_100HALF | ADVERTISE_100FULL);
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	if (tp->mii.supports_gmii) {
		gbcr = r8152_mdio_read(tp, MII_CTRL1000);
		gbcr &= ~(ADVERTISE_1000FULL | ADVERTISE_1000HALF);
	} else {
		gbcr = 0;
	}
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	if (autoneg == AUTONEG_DISABLE) {
		if (speed == SPEED_10) {
			bmcr = 0;
			anar |= ADVERTISE_10HALF | ADVERTISE_10FULL;
		} else if (speed == SPEED_100) {
			bmcr = BMCR_SPEED100;
			anar |= ADVERTISE_100HALF | ADVERTISE_100FULL;
H
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		} else if (speed == SPEED_1000 && tp->mii.supports_gmii) {
			bmcr = BMCR_SPEED1000;
			gbcr |= ADVERTISE_1000FULL | ADVERTISE_1000HALF;
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		} else {
			ret = -EINVAL;
			goto out;
		}

		if (duplex == DUPLEX_FULL)
			bmcr |= BMCR_FULLDPLX;
	} else {
		if (speed == SPEED_10) {
			if (duplex == DUPLEX_FULL)
				anar |= ADVERTISE_10HALF | ADVERTISE_10FULL;
			else
				anar |= ADVERTISE_10HALF;
		} else if (speed == SPEED_100) {
			if (duplex == DUPLEX_FULL) {
				anar |= ADVERTISE_10HALF | ADVERTISE_10FULL;
				anar |= ADVERTISE_100HALF | ADVERTISE_100FULL;
			} else {
				anar |= ADVERTISE_10HALF;
				anar |= ADVERTISE_100HALF;
			}
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		} else if (speed == SPEED_1000 && tp->mii.supports_gmii) {
			if (duplex == DUPLEX_FULL) {
				anar |= ADVERTISE_10HALF | ADVERTISE_10FULL;
				anar |= ADVERTISE_100HALF | ADVERTISE_100FULL;
				gbcr |= ADVERTISE_1000FULL | ADVERTISE_1000HALF;
			} else {
				anar |= ADVERTISE_10HALF;
				anar |= ADVERTISE_100HALF;
				gbcr |= ADVERTISE_1000HALF;
			}
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		} else {
			ret = -EINVAL;
			goto out;
		}

		bmcr = BMCR_ANENABLE | BMCR_ANRESTART;
	}

2894 2895 2896
	if (test_bit(PHY_RESET, &tp->flags))
		bmcr |= BMCR_RESET;

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	if (tp->mii.supports_gmii)
		r8152_mdio_write(tp, MII_CTRL1000, gbcr);

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	r8152_mdio_write(tp, MII_ADVERTISE, anar);
	r8152_mdio_write(tp, MII_BMCR, bmcr);

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	if (test_and_clear_bit(PHY_RESET, &tp->flags)) {
2904 2905 2906 2907 2908 2909 2910 2911 2912
		int i;

		for (i = 0; i < 50; i++) {
			msleep(20);
			if ((r8152_mdio_read(tp, MII_BMCR) & BMCR_RESET) == 0)
				break;
		}
	}

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out:
	return ret;
}

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static void rtl8152_up(struct r8152 *tp)
{
	if (test_bit(RTL8152_UNPLUG, &tp->flags))
		return;

H
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2922
	r8152_aldps_en(tp, false);
H
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2923
	r8152b_exit_oob(tp);
H
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2924
	r8152_aldps_en(tp, true);
H
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2925 2926
}

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2927 2928
static void rtl8152_down(struct r8152 *tp)
{
H
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2929 2930 2931 2932 2933
	if (test_bit(RTL8152_UNPLUG, &tp->flags)) {
		rtl_drop_queued_tx(tp);
		return;
	}

H
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2934
	r8152_power_cut_en(tp, false);
H
hayeswang 已提交
2935
	r8152_aldps_en(tp, false);
H
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2936
	r8152b_enter_oob(tp);
H
hayeswang 已提交
2937
	r8152_aldps_en(tp, true);
H
hayeswang 已提交
2938 2939
}

H
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2940 2941 2942 2943 2944
static void rtl8153_up(struct r8152 *tp)
{
	if (test_bit(RTL8152_UNPLUG, &tp->flags))
		return;

H
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2945
	r8153_u1u2en(tp, false);
H
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2946
	r8153_aldps_en(tp, false);
H
hayeswang 已提交
2947
	r8153_first_init(tp);
H
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2948
	r8153_aldps_en(tp, true);
H
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2949 2950 2951
	r8153_u2p3en(tp, true);
	r8153_u1u2en(tp, true);
	usb_enable_lpm(tp->udev);
H
hayeswang 已提交
2952 2953
}

H
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2954 2955
static void rtl8153_down(struct r8152 *tp)
{
H
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2956 2957 2958 2959 2960
	if (test_bit(RTL8152_UNPLUG, &tp->flags)) {
		rtl_drop_queued_tx(tp);
		return;
	}

2961
	r8153_u1u2en(tp, false);
H
hayeswang 已提交
2962
	r8153_u2p3en(tp, false);
2963
	r8153_power_cut_en(tp, false);
H
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2964
	r8153_aldps_en(tp, false);
H
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2965
	r8153_enter_oob(tp);
H
hayeswang 已提交
2966
	r8153_aldps_en(tp, true);
H
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2967 2968
}

2969 2970 2971 2972 2973 2974 2975 2976 2977 2978 2979 2980 2981 2982 2983 2984 2985 2986 2987 2988 2989 2990 2991 2992 2993 2994
static bool rtl8152_in_nway(struct r8152 *tp)
{
	u16 nway_state;

	ocp_write_word(tp, MCU_TYPE_PLA, PLA_OCP_GPHY_BASE, 0x2000);
	tp->ocp_base = 0x2000;
	ocp_write_byte(tp, MCU_TYPE_PLA, 0xb014, 0x4c);		/* phy state */
	nway_state = ocp_read_word(tp, MCU_TYPE_PLA, 0xb01a);

	/* bit 15: TXDIS_STATE, bit 14: ABD_STATE */
	if (nway_state & 0xc000)
		return false;
	else
		return true;
}

static bool rtl8153_in_nway(struct r8152 *tp)
{
	u16 phy_state = ocp_reg_read(tp, OCP_PHY_STATE) & 0xff;

	if (phy_state == TXDIS_STATE || phy_state == ABD_STATE)
		return false;
	else
		return true;
}

H
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2995 2996 2997 2998 2999 3000 3001 3002
static void set_carrier(struct r8152 *tp)
{
	struct net_device *netdev = tp->netdev;
	u8 speed;

	speed = rtl8152_get_speed(tp);

	if (speed & LINK_STATUS) {
3003
		if (!netif_carrier_ok(netdev)) {
H
hayeswang 已提交
3004
			tp->rtl_ops.enable(tp);
H
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3005
			set_bit(RTL8152_SET_RX_MODE, &tp->flags);
3006
			napi_disable(&tp->napi);
H
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3007
			netif_carrier_on(netdev);
3008
			rtl_start_rx(tp);
3009
			napi_enable(&tp->napi);
H
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3010 3011
		}
	} else {
3012
		if (netif_carrier_ok(netdev)) {
H
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3013
			netif_carrier_off(netdev);
H
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3014
			napi_disable(&tp->napi);
H
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3015
			tp->rtl_ops.disable(tp);
H
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3016
			napi_enable(&tp->napi);
H
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3017 3018 3019 3020 3021 3022 3023 3024
		}
	}
}

static void rtl_work_func_t(struct work_struct *work)
{
	struct r8152 *tp = container_of(work, struct r8152, schedule.work);

3025 3026 3027 3028 3029 3030
	/* If the device is unplugged or !netif_running(), the workqueue
	 * doesn't need to wake the device, and could return directly.
	 */
	if (test_bit(RTL8152_UNPLUG, &tp->flags) || !netif_running(tp->netdev))
		return;

H
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3031 3032 3033
	if (usb_autopm_get_interface(tp->intf) < 0)
		return;

H
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3034 3035 3036
	if (!test_bit(WORK_ENABLE, &tp->flags))
		goto out1;

H
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3037 3038 3039 3040 3041
	if (!mutex_trylock(&tp->control)) {
		schedule_delayed_work(&tp->schedule, 0);
		goto out1;
	}

H
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3042
	if (test_and_clear_bit(RTL8152_LINK_CHG, &tp->flags))
3043
		set_carrier(tp);
H
hayeswang 已提交
3044

H
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3045
	if (test_and_clear_bit(RTL8152_SET_RX_MODE, &tp->flags))
H
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3046 3047
		_rtl8152_set_rx_mode(tp->netdev);

H
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3048
	/* don't schedule napi before linking */
H
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3049 3050
	if (test_and_clear_bit(SCHEDULE_NAPI, &tp->flags) &&
	    netif_carrier_ok(tp->netdev))
H
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3051
		napi_schedule(&tp->napi);
3052

H
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3053
	if (test_and_clear_bit(PHY_RESET, &tp->flags))
3054 3055
		rtl_phy_reset(tp);

H
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3056 3057
	mutex_unlock(&tp->control);

H
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3058
out1:
H
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3059
	usb_autopm_put_interface(tp->intf);
H
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3060 3061
}

H
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3062 3063 3064 3065 3066 3067 3068 3069 3070 3071 3072 3073 3074 3075 3076 3077 3078 3079 3080 3081 3082 3083 3084 3085 3086 3087 3088
#ifdef CONFIG_PM_SLEEP
static int rtl_notifier(struct notifier_block *nb, unsigned long action,
			void *data)
{
	struct r8152 *tp = container_of(nb, struct r8152, pm_notifier);

	switch (action) {
	case PM_HIBERNATION_PREPARE:
	case PM_SUSPEND_PREPARE:
		usb_autopm_get_interface(tp->intf);
		break;

	case PM_POST_HIBERNATION:
	case PM_POST_SUSPEND:
		usb_autopm_put_interface(tp->intf);
		break;

	case PM_POST_RESTORE:
	case PM_RESTORE_PREPARE:
	default:
		break;
	}

	return NOTIFY_DONE;
}
#endif

H
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3089 3090 3091 3092 3093
static int rtl8152_open(struct net_device *netdev)
{
	struct r8152 *tp = netdev_priv(netdev);
	int res = 0;

3094 3095 3096 3097
	res = alloc_all_mem(tp);
	if (res)
		goto out;

3098
	netif_carrier_off(netdev);
3099

H
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3100 3101 3102 3103 3104 3105
	res = usb_autopm_get_interface(tp->intf);
	if (res < 0) {
		free_all_mem(tp);
		goto out;
	}

H
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3106 3107
	mutex_lock(&tp->control);

3108 3109
	tp->rtl_ops.up(tp);

3110 3111 3112 3113 3114 3115
	rtl8152_set_speed(tp, AUTONEG_ENABLE,
			  tp->mii.supports_gmii ? SPEED_1000 : SPEED_100,
			  DUPLEX_FULL);
	netif_carrier_off(netdev);
	netif_start_queue(netdev);
	set_bit(WORK_ENABLE, &tp->flags);
3116

3117 3118 3119 3120
	res = usb_submit_urb(tp->intr_urb, GFP_KERNEL);
	if (res) {
		if (res == -ENODEV)
			netif_device_detach(tp->netdev);
H
Hayes Wang 已提交
3121 3122
		netif_warn(tp, ifup, netdev, "intr_urb submit failed: %d\n",
			   res);
3123
		free_all_mem(tp);
H
hayeswang 已提交
3124
	} else {
H
hayeswang 已提交
3125
		napi_enable(&tp->napi);
H
hayeswang 已提交
3126 3127
	}

H
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3128 3129
	mutex_unlock(&tp->control);

H
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3130
	usb_autopm_put_interface(tp->intf);
H
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3131 3132 3133 3134
#ifdef CONFIG_PM_SLEEP
	tp->pm_notifier.notifier_call = rtl_notifier;
	register_pm_notifier(&tp->pm_notifier);
#endif
H
hayeswang 已提交
3135

3136
out:
H
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3137 3138 3139 3140 3141 3142 3143 3144
	return res;
}

static int rtl8152_close(struct net_device *netdev)
{
	struct r8152 *tp = netdev_priv(netdev);
	int res = 0;

H
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3145 3146 3147
#ifdef CONFIG_PM_SLEEP
	unregister_pm_notifier(&tp->pm_notifier);
#endif
H
hayeswang 已提交
3148
	napi_disable(&tp->napi);
H
hayeswang 已提交
3149
	clear_bit(WORK_ENABLE, &tp->flags);
3150
	usb_kill_urb(tp->intr_urb);
H
hayeswang 已提交
3151 3152
	cancel_delayed_work_sync(&tp->schedule);
	netif_stop_queue(netdev);
H
hayeswang 已提交
3153 3154

	res = usb_autopm_get_interface(tp->intf);
3155
	if (res < 0 || test_bit(RTL8152_UNPLUG, &tp->flags)) {
H
hayeswang 已提交
3156
		rtl_drop_queued_tx(tp);
H
hayeswang 已提交
3157
		rtl_stop_rx(tp);
H
hayeswang 已提交
3158
	} else {
H
hayeswang 已提交
3159 3160
		mutex_lock(&tp->control);

H
hayeswang 已提交
3161
		tp->rtl_ops.down(tp);
H
hayeswang 已提交
3162 3163 3164

		mutex_unlock(&tp->control);

H
hayeswang 已提交
3165 3166
		usb_autopm_put_interface(tp->intf);
	}
H
hayeswang 已提交
3167

3168 3169
	free_all_mem(tp);

H
hayeswang 已提交
3170 3171 3172
	return res;
}

H
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3173 3174 3175 3176 3177 3178 3179 3180 3181 3182 3183 3184 3185 3186 3187 3188 3189 3190 3191
static inline void r8152_mmd_indirect(struct r8152 *tp, u16 dev, u16 reg)
{
	ocp_reg_write(tp, OCP_EEE_AR, FUN_ADDR | dev);
	ocp_reg_write(tp, OCP_EEE_DATA, reg);
	ocp_reg_write(tp, OCP_EEE_AR, FUN_DATA | dev);
}

static u16 r8152_mmd_read(struct r8152 *tp, u16 dev, u16 reg)
{
	u16 data;

	r8152_mmd_indirect(tp, dev, reg);
	data = ocp_reg_read(tp, OCP_EEE_DATA);
	ocp_reg_write(tp, OCP_EEE_AR, 0x0000);

	return data;
}

static void r8152_mmd_write(struct r8152 *tp, u16 dev, u16 reg, u16 data)
H
hayeswang 已提交
3192
{
H
hayeswang 已提交
3193 3194 3195 3196 3197 3198 3199 3200
	r8152_mmd_indirect(tp, dev, reg);
	ocp_reg_write(tp, OCP_EEE_DATA, data);
	ocp_reg_write(tp, OCP_EEE_AR, 0x0000);
}

static void r8152_eee_en(struct r8152 *tp, bool enable)
{
	u16 config1, config2, config3;
H
hayeswang 已提交
3201
	u32 ocp_data;
H
hayeswang 已提交
3202 3203

	ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_EEE_CR);
H
hayeswang 已提交
3204 3205 3206 3207 3208 3209 3210 3211 3212 3213 3214 3215 3216 3217 3218 3219 3220 3221 3222
	config1 = ocp_reg_read(tp, OCP_EEE_CONFIG1) & ~sd_rise_time_mask;
	config2 = ocp_reg_read(tp, OCP_EEE_CONFIG2);
	config3 = ocp_reg_read(tp, OCP_EEE_CONFIG3) & ~fast_snr_mask;

	if (enable) {
		ocp_data |= EEE_RX_EN | EEE_TX_EN;
		config1 |= EEE_10_CAP | EEE_NWAY_EN | TX_QUIET_EN | RX_QUIET_EN;
		config1 |= sd_rise_time(1);
		config2 |= RG_DACQUIET_EN | RG_LDVQUIET_EN;
		config3 |= fast_snr(42);
	} else {
		ocp_data &= ~(EEE_RX_EN | EEE_TX_EN);
		config1 &= ~(EEE_10_CAP | EEE_NWAY_EN | TX_QUIET_EN |
			     RX_QUIET_EN);
		config1 |= sd_rise_time(7);
		config2 &= ~(RG_DACQUIET_EN | RG_LDVQUIET_EN);
		config3 |= fast_snr(511);
	}

H
hayeswang 已提交
3223
	ocp_write_word(tp, MCU_TYPE_PLA, PLA_EEE_CR, ocp_data);
H
hayeswang 已提交
3224 3225 3226
	ocp_reg_write(tp, OCP_EEE_CONFIG1, config1);
	ocp_reg_write(tp, OCP_EEE_CONFIG2, config2);
	ocp_reg_write(tp, OCP_EEE_CONFIG3, config3);
H
hayeswang 已提交
3227 3228
}

H
hayeswang 已提交
3229 3230 3231 3232 3233 3234 3235
static void r8152b_enable_eee(struct r8152 *tp)
{
	r8152_eee_en(tp, true);
	r8152_mmd_write(tp, MDIO_MMD_AN, MDIO_AN_EEE_ADV, MDIO_EEE_100TX);
}

static void r8153_eee_en(struct r8152 *tp, bool enable)
H
hayeswang 已提交
3236 3237
{
	u32 ocp_data;
H
hayeswang 已提交
3238
	u16 config;
H
hayeswang 已提交
3239 3240

	ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_EEE_CR);
H
hayeswang 已提交
3241 3242 3243 3244 3245 3246 3247 3248 3249 3250
	config = ocp_reg_read(tp, OCP_EEE_CFG);

	if (enable) {
		ocp_data |= EEE_RX_EN | EEE_TX_EN;
		config |= EEE10_EN;
	} else {
		ocp_data &= ~(EEE_RX_EN | EEE_TX_EN);
		config &= ~EEE10_EN;
	}

H
hayeswang 已提交
3251
	ocp_write_word(tp, MCU_TYPE_PLA, PLA_EEE_CR, ocp_data);
H
hayeswang 已提交
3252 3253 3254 3255 3256 3257 3258
	ocp_reg_write(tp, OCP_EEE_CFG, config);
}

static void r8153_enable_eee(struct r8152 *tp)
{
	r8153_eee_en(tp, true);
	ocp_reg_write(tp, OCP_EEE_ADV, MDIO_EEE_1000T | MDIO_EEE_100TX);
H
hayeswang 已提交
3259 3260
}

H
hayeswang 已提交
3261 3262 3263 3264 3265 3266 3267 3268 3269
static void r8152b_enable_fc(struct r8152 *tp)
{
	u16 anar;

	anar = r8152_mdio_read(tp, MII_ADVERTISE);
	anar |= ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM;
	r8152_mdio_write(tp, MII_ADVERTISE, anar);
}

3270 3271 3272 3273 3274 3275 3276 3277 3278
static void rtl_tally_reset(struct r8152 *tp)
{
	u32 ocp_data;

	ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_RSTTALLY);
	ocp_data |= TALLY_RESET;
	ocp_write_word(tp, MCU_TYPE_PLA, PLA_RSTTALLY, ocp_data);
}

H
hayeswang 已提交
3279 3280
static void r8152b_init(struct r8152 *tp)
{
H
hayeswang 已提交
3281
	u32 ocp_data;
H
hayeswang 已提交
3282

H
hayeswang 已提交
3283 3284 3285
	if (test_bit(RTL8152_UNPLUG, &tp->flags))
		return;

H
hayeswang 已提交
3286
	r8152_aldps_en(tp, false);
H
hayeswang 已提交
3287

H
hayeswang 已提交
3288 3289 3290 3291 3292 3293
	if (tp->version == RTL_VER_01) {
		ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_LED_FEATURE);
		ocp_data &= ~LED_MODE_MASK;
		ocp_write_word(tp, MCU_TYPE_PLA, PLA_LED_FEATURE, ocp_data);
	}

H
hayeswang 已提交
3294
	r8152_power_cut_en(tp, false);
H
hayeswang 已提交
3295 3296 3297 3298 3299 3300 3301 3302 3303 3304 3305 3306 3307

	ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_PHY_PWR);
	ocp_data |= TX_10M_IDLE_EN | PFM_PWM_SWITCH;
	ocp_write_word(tp, MCU_TYPE_PLA, PLA_PHY_PWR, ocp_data);
	ocp_data = ocp_read_dword(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL);
	ocp_data &= ~MCU_CLK_RATIO_MASK;
	ocp_data |= MCU_CLK_RATIO | D3_CLK_GATED_EN;
	ocp_write_dword(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL, ocp_data);
	ocp_data = GPHY_STS_MSK | SPEED_DOWN_MSK |
		   SPDWN_RXDV_MSK | SPDWN_LINKCHG_MSK;
	ocp_write_word(tp, MCU_TYPE_PLA, PLA_GPHY_INTR_IMR, ocp_data);

	r8152b_enable_eee(tp);
H
hayeswang 已提交
3308
	r8152_aldps_en(tp, true);
H
hayeswang 已提交
3309
	r8152b_enable_fc(tp);
3310
	rtl_tally_reset(tp);
H
hayeswang 已提交
3311

H
hayeswang 已提交
3312
	/* enable rx aggregation */
H
hayeswang 已提交
3313
	ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_USB_CTRL);
3314
	ocp_data &= ~(RX_AGG_DISABLE | RX_ZERO_EN);
H
hayeswang 已提交
3315 3316 3317
	ocp_write_word(tp, MCU_TYPE_USB, USB_USB_CTRL, ocp_data);
}

H
hayeswang 已提交
3318 3319 3320 3321 3322
static void r8153_init(struct r8152 *tp)
{
	u32 ocp_data;
	int i;

H
hayeswang 已提交
3323 3324 3325
	if (test_bit(RTL8152_UNPLUG, &tp->flags))
		return;

H
hayeswang 已提交
3326
	r8153_aldps_en(tp, false);
3327
	r8153_u1u2en(tp, false);
H
hayeswang 已提交
3328 3329 3330 3331 3332 3333 3334 3335 3336 3337 3338 3339 3340 3341 3342

	for (i = 0; i < 500; i++) {
		if (ocp_read_word(tp, MCU_TYPE_PLA, PLA_BOOT_CTRL) &
		    AUTOLOAD_DONE)
			break;
		msleep(20);
	}

	for (i = 0; i < 500; i++) {
		ocp_data = ocp_reg_read(tp, OCP_PHY_STATUS) & PHY_STAT_MASK;
		if (ocp_data == PHY_STAT_LAN_ON || ocp_data == PHY_STAT_PWRDN)
			break;
		msleep(20);
	}

H
hayeswang 已提交
3343
	usb_disable_lpm(tp->udev);
3344
	r8153_u2p3en(tp, false);
H
hayeswang 已提交
3345

H
hayeswang 已提交
3346 3347 3348 3349 3350 3351 3352 3353 3354 3355 3356 3357 3358 3359
	if (tp->version == RTL_VER_04) {
		ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_SSPHYLINK2);
		ocp_data &= ~pwd_dn_scale_mask;
		ocp_data |= pwd_dn_scale(96);
		ocp_write_word(tp, MCU_TYPE_USB, USB_SSPHYLINK2, ocp_data);

		ocp_data = ocp_read_byte(tp, MCU_TYPE_USB, USB_USB2PHY);
		ocp_data |= USB2PHY_L1 | USB2PHY_SUSPEND;
		ocp_write_byte(tp, MCU_TYPE_USB, USB_USB2PHY, ocp_data);
	} else if (tp->version == RTL_VER_05) {
		ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_DMY_REG0);
		ocp_data &= ~ECM_ALDPS;
		ocp_write_byte(tp, MCU_TYPE_PLA, PLA_DMY_REG0, ocp_data);

H
hayeswang 已提交
3360 3361 3362 3363 3364 3365 3366
		ocp_data = ocp_read_byte(tp, MCU_TYPE_USB, USB_CSR_DUMMY1);
		if (ocp_read_word(tp, MCU_TYPE_USB, USB_BURST_SIZE) == 0)
			ocp_data &= ~DYNAMIC_BURST;
		else
			ocp_data |= DYNAMIC_BURST;
		ocp_write_byte(tp, MCU_TYPE_USB, USB_CSR_DUMMY1, ocp_data);
	} else if (tp->version == RTL_VER_06) {
H
hayeswang 已提交
3367 3368 3369 3370 3371 3372 3373 3374 3375 3376 3377 3378
		ocp_data = ocp_read_byte(tp, MCU_TYPE_USB, USB_CSR_DUMMY1);
		if (ocp_read_word(tp, MCU_TYPE_USB, USB_BURST_SIZE) == 0)
			ocp_data &= ~DYNAMIC_BURST;
		else
			ocp_data |= DYNAMIC_BURST;
		ocp_write_byte(tp, MCU_TYPE_USB, USB_CSR_DUMMY1, ocp_data);
	}

	ocp_data = ocp_read_byte(tp, MCU_TYPE_USB, USB_CSR_DUMMY2);
	ocp_data |= EP4_FULL_FC;
	ocp_write_byte(tp, MCU_TYPE_USB, USB_CSR_DUMMY2, ocp_data);

H
hayeswang 已提交
3379 3380 3381 3382 3383 3384 3385 3386
	ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_WDT11_CTRL);
	ocp_data &= ~TIMER11_EN;
	ocp_write_word(tp, MCU_TYPE_USB, USB_WDT11_CTRL, ocp_data);

	ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_LED_FEATURE);
	ocp_data &= ~LED_MODE_MASK;
	ocp_write_word(tp, MCU_TYPE_PLA, PLA_LED_FEATURE, ocp_data);

H
hayeswang 已提交
3387
	ocp_data = FIFO_EMPTY_1FB | ROK_EXIT_LPM;
O
Oliver Neukum 已提交
3388
	if (tp->version == RTL_VER_04 && tp->udev->speed < USB_SPEED_SUPER)
H
hayeswang 已提交
3389
		ocp_data |= LPM_TIMER_500MS;
H
hayeswang 已提交
3390 3391
	else
		ocp_data |= LPM_TIMER_500US;
H
hayeswang 已提交
3392 3393 3394 3395 3396 3397 3398
	ocp_write_byte(tp, MCU_TYPE_USB, USB_LPM_CTRL, ocp_data);

	ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_AFE_CTRL2);
	ocp_data &= ~SEN_VAL_MASK;
	ocp_data |= SEN_VAL_NORMAL | SEL_RXIDLE;
	ocp_write_word(tp, MCU_TYPE_USB, USB_AFE_CTRL2, ocp_data);

H
hayeswang 已提交
3399 3400
	ocp_write_word(tp, MCU_TYPE_USB, USB_CONNECT_TIMER, 0x0001);

3401 3402
	r8153_power_cut_en(tp, false);
	r8153_u1u2en(tp, true);
H
hayeswang 已提交
3403

H
hayeswang 已提交
3404 3405 3406 3407 3408
	/* MAC clock speed down */
	ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL, 0);
	ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL2, 0);
	ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL3, 0);
	ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL4, 0);
H
hayeswang 已提交
3409 3410

	r8153_enable_eee(tp);
H
hayeswang 已提交
3411
	r8153_aldps_en(tp, true);
H
hayeswang 已提交
3412
	r8152b_enable_fc(tp);
3413
	rtl_tally_reset(tp);
H
hayeswang 已提交
3414
	r8153_u2p3en(tp, true);
H
hayeswang 已提交
3415 3416
}

H
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3417 3418 3419 3420 3421 3422 3423 3424 3425 3426 3427 3428 3429 3430 3431 3432 3433 3434 3435 3436 3437 3438 3439 3440 3441 3442 3443 3444 3445 3446 3447 3448 3449 3450 3451 3452 3453 3454 3455 3456 3457 3458 3459 3460 3461 3462 3463 3464 3465 3466
static int rtl8152_pre_reset(struct usb_interface *intf)
{
	struct r8152 *tp = usb_get_intfdata(intf);
	struct net_device *netdev;

	if (!tp)
		return 0;

	netdev = tp->netdev;
	if (!netif_running(netdev))
		return 0;

	napi_disable(&tp->napi);
	clear_bit(WORK_ENABLE, &tp->flags);
	usb_kill_urb(tp->intr_urb);
	cancel_delayed_work_sync(&tp->schedule);
	if (netif_carrier_ok(netdev)) {
		netif_stop_queue(netdev);
		mutex_lock(&tp->control);
		tp->rtl_ops.disable(tp);
		mutex_unlock(&tp->control);
	}

	return 0;
}

static int rtl8152_post_reset(struct usb_interface *intf)
{
	struct r8152 *tp = usb_get_intfdata(intf);
	struct net_device *netdev;

	if (!tp)
		return 0;

	netdev = tp->netdev;
	if (!netif_running(netdev))
		return 0;

	set_bit(WORK_ENABLE, &tp->flags);
	if (netif_carrier_ok(netdev)) {
		mutex_lock(&tp->control);
		tp->rtl_ops.enable(tp);
		rtl8152_set_rx_mode(netdev);
		mutex_unlock(&tp->control);
		netif_wake_queue(netdev);
	}

	napi_enable(&tp->napi);

	return 0;
H
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3467 3468
}

3469 3470 3471 3472 3473 3474 3475 3476 3477 3478 3479 3480 3481 3482 3483 3484 3485 3486 3487 3488 3489
static bool delay_autosuspend(struct r8152 *tp)
{
	bool sw_linking = !!netif_carrier_ok(tp->netdev);
	bool hw_linking = !!(rtl8152_get_speed(tp) & LINK_STATUS);

	/* This means a linking change occurs and the driver doesn't detect it,
	 * yet. If the driver has disabled tx/rx and hw is linking on, the
	 * device wouldn't wake up by receiving any packet.
	 */
	if (work_busy(&tp->schedule.work) || sw_linking != hw_linking)
		return true;

	/* If the linking down is occurred by nway, the device may miss the
	 * linking change event. And it wouldn't wake when linking on.
	 */
	if (!sw_linking && tp->rtl_ops.in_nway(tp))
		return true;
	else
		return false;
}

H
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3490 3491 3492
static int rtl8152_suspend(struct usb_interface *intf, pm_message_t message)
{
	struct r8152 *tp = usb_get_intfdata(intf);
3493 3494
	struct net_device *netdev = tp->netdev;
	int ret = 0;
H
hayeswang 已提交
3495

H
hayeswang 已提交
3496 3497
	mutex_lock(&tp->control);

3498
	if (PMSG_IS_AUTO(message)) {
3499
		if (netif_running(netdev) && delay_autosuspend(tp)) {
3500 3501 3502 3503
			ret = -EBUSY;
			goto out1;
		}

H
hayeswang 已提交
3504
		set_bit(SELECTIVE_SUSPEND, &tp->flags);
3505 3506 3507
	} else {
		netif_device_detach(netdev);
	}
H
hayeswang 已提交
3508

3509
	if (netif_running(netdev) && test_bit(WORK_ENABLE, &tp->flags)) {
H
hayeswang 已提交
3510
		clear_bit(WORK_ENABLE, &tp->flags);
3511
		usb_kill_urb(tp->intr_urb);
H
hayeswang 已提交
3512
		napi_disable(&tp->napi);
H
hayeswang 已提交
3513
		if (test_bit(SELECTIVE_SUSPEND, &tp->flags)) {
3514
			rtl_stop_rx(tp);
H
hayeswang 已提交
3515 3516
			rtl_runtime_suspend_enable(tp, true);
		} else {
3517
			cancel_delayed_work_sync(&tp->schedule);
H
hayeswang 已提交
3518 3519
			tp->rtl_ops.down(tp);
		}
H
hayeswang 已提交
3520
		napi_enable(&tp->napi);
H
hayeswang 已提交
3521
	}
3522
out1:
H
hayeswang 已提交
3523 3524
	mutex_unlock(&tp->control);

3525
	return ret;
H
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3526 3527 3528 3529 3530 3531
}

static int rtl8152_resume(struct usb_interface *intf)
{
	struct r8152 *tp = usb_get_intfdata(intf);

H
hayeswang 已提交
3532 3533
	mutex_lock(&tp->control);

H
hayeswang 已提交
3534 3535 3536 3537 3538
	if (!test_bit(SELECTIVE_SUSPEND, &tp->flags)) {
		tp->rtl_ops.init(tp);
		netif_device_attach(tp->netdev);
	}

3539
	if (netif_running(tp->netdev) && tp->netdev->flags & IFF_UP) {
H
hayeswang 已提交
3540 3541 3542
		if (test_bit(SELECTIVE_SUSPEND, &tp->flags)) {
			rtl_runtime_suspend_enable(tp, false);
			clear_bit(SELECTIVE_SUSPEND, &tp->flags);
3543
			napi_disable(&tp->napi);
3544
			set_bit(WORK_ENABLE, &tp->flags);
3545
			if (netif_carrier_ok(tp->netdev))
3546
				rtl_start_rx(tp);
3547
			napi_enable(&tp->napi);
H
hayeswang 已提交
3548 3549 3550
		} else {
			tp->rtl_ops.up(tp);
			rtl8152_set_speed(tp, AUTONEG_ENABLE,
H
hayeswang 已提交
3551 3552 3553
					  tp->mii.supports_gmii ?
					  SPEED_1000 : SPEED_100,
					  DUPLEX_FULL);
3554 3555
			netif_carrier_off(tp->netdev);
			set_bit(WORK_ENABLE, &tp->flags);
H
hayeswang 已提交
3556
		}
3557
		usb_submit_urb(tp->intr_urb, GFP_KERNEL);
3558
	} else if (test_bit(SELECTIVE_SUSPEND, &tp->flags)) {
3559 3560
		if (tp->netdev->flags & IFF_UP)
			rtl_runtime_suspend_enable(tp, false);
3561
		clear_bit(SELECTIVE_SUSPEND, &tp->flags);
H
hayeswang 已提交
3562 3563
	}

H
hayeswang 已提交
3564 3565
	mutex_unlock(&tp->control);

H
hayeswang 已提交
3566 3567 3568
	return 0;
}

H
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3569 3570 3571 3572 3573 3574 3575 3576
static int rtl8152_reset_resume(struct usb_interface *intf)
{
	struct r8152 *tp = usb_get_intfdata(intf);

	clear_bit(SELECTIVE_SUSPEND, &tp->flags);
	return rtl8152_resume(intf);
}

H
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3577 3578 3579 3580
static void rtl8152_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
{
	struct r8152 *tp = netdev_priv(dev);

H
hayeswang 已提交
3581 3582 3583
	if (usb_autopm_get_interface(tp->intf) < 0)
		return;

H
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3584 3585 3586 3587 3588 3589 3590 3591 3592
	if (!rtl_can_wakeup(tp)) {
		wol->supported = 0;
		wol->wolopts = 0;
	} else {
		mutex_lock(&tp->control);
		wol->supported = WAKE_ANY;
		wol->wolopts = __rtl_get_wol(tp);
		mutex_unlock(&tp->control);
	}
H
hayeswang 已提交
3593

H
hayeswang 已提交
3594
	usb_autopm_put_interface(tp->intf);
H
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3595 3596 3597 3598 3599
}

static int rtl8152_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
{
	struct r8152 *tp = netdev_priv(dev);
H
hayeswang 已提交
3600 3601
	int ret;

H
hayeswang 已提交
3602 3603 3604
	if (!rtl_can_wakeup(tp))
		return -EOPNOTSUPP;

H
hayeswang 已提交
3605 3606 3607
	ret = usb_autopm_get_interface(tp->intf);
	if (ret < 0)
		goto out_set_wol;
H
hayeswang 已提交
3608

H
hayeswang 已提交
3609 3610
	mutex_lock(&tp->control);

H
hayeswang 已提交
3611 3612 3613
	__rtl_set_wol(tp, wol->wolopts);
	tp->saved_wolopts = wol->wolopts & WAKE_ANY;

H
hayeswang 已提交
3614 3615
	mutex_unlock(&tp->control);

H
hayeswang 已提交
3616 3617 3618 3619
	usb_autopm_put_interface(tp->intf);

out_set_wol:
	return ret;
H
hayeswang 已提交
3620 3621
}

3622 3623 3624 3625 3626 3627 3628 3629 3630 3631 3632 3633 3634 3635
static u32 rtl8152_get_msglevel(struct net_device *dev)
{
	struct r8152 *tp = netdev_priv(dev);

	return tp->msg_enable;
}

static void rtl8152_set_msglevel(struct net_device *dev, u32 value)
{
	struct r8152 *tp = netdev_priv(dev);

	tp->msg_enable = value;
}

H
hayeswang 已提交
3636 3637 3638 3639 3640
static void rtl8152_get_drvinfo(struct net_device *netdev,
				struct ethtool_drvinfo *info)
{
	struct r8152 *tp = netdev_priv(netdev);

H
hayeswang 已提交
3641 3642
	strlcpy(info->driver, MODULENAME, sizeof(info->driver));
	strlcpy(info->version, DRIVER_VERSION, sizeof(info->version));
H
hayeswang 已提交
3643 3644 3645 3646 3647 3648 3649
	usb_make_path(tp->udev, info->bus_info, sizeof(info->bus_info));
}

static
int rtl8152_get_settings(struct net_device *netdev, struct ethtool_cmd *cmd)
{
	struct r8152 *tp = netdev_priv(netdev);
H
hayeswang 已提交
3650
	int ret;
H
hayeswang 已提交
3651 3652 3653 3654

	if (!tp->mii.mdio_read)
		return -EOPNOTSUPP;

H
hayeswang 已提交
3655 3656 3657 3658
	ret = usb_autopm_get_interface(tp->intf);
	if (ret < 0)
		goto out;

H
hayeswang 已提交
3659 3660
	mutex_lock(&tp->control);

H
hayeswang 已提交
3661 3662
	ret = mii_ethtool_gset(&tp->mii, cmd);

H
hayeswang 已提交
3663 3664
	mutex_unlock(&tp->control);

H
hayeswang 已提交
3665 3666 3667 3668
	usb_autopm_put_interface(tp->intf);

out:
	return ret;
H
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3669 3670 3671 3672 3673
}

static int rtl8152_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
{
	struct r8152 *tp = netdev_priv(dev);
H
hayeswang 已提交
3674 3675 3676 3677 3678
	int ret;

	ret = usb_autopm_get_interface(tp->intf);
	if (ret < 0)
		goto out;
H
hayeswang 已提交
3679

H
hayeswang 已提交
3680 3681
	mutex_lock(&tp->control);

H
hayeswang 已提交
3682 3683
	ret = rtl8152_set_speed(tp, cmd->autoneg, cmd->speed, cmd->duplex);

H
hayeswang 已提交
3684 3685
	mutex_unlock(&tp->control);

H
hayeswang 已提交
3686 3687 3688 3689
	usb_autopm_put_interface(tp->intf);

out:
	return ret;
H
hayeswang 已提交
3690 3691
}

3692 3693 3694 3695 3696 3697 3698 3699 3700 3701 3702 3703 3704 3705 3706 3707 3708 3709 3710 3711 3712 3713 3714 3715 3716 3717 3718 3719 3720 3721 3722 3723
static const char rtl8152_gstrings[][ETH_GSTRING_LEN] = {
	"tx_packets",
	"rx_packets",
	"tx_errors",
	"rx_errors",
	"rx_missed",
	"align_errors",
	"tx_single_collisions",
	"tx_multi_collisions",
	"rx_unicast",
	"rx_broadcast",
	"rx_multicast",
	"tx_aborted",
	"tx_underrun",
};

static int rtl8152_get_sset_count(struct net_device *dev, int sset)
{
	switch (sset) {
	case ETH_SS_STATS:
		return ARRAY_SIZE(rtl8152_gstrings);
	default:
		return -EOPNOTSUPP;
	}
}

static void rtl8152_get_ethtool_stats(struct net_device *dev,
				      struct ethtool_stats *stats, u64 *data)
{
	struct r8152 *tp = netdev_priv(dev);
	struct tally_counter tally;

3724 3725 3726
	if (usb_autopm_get_interface(tp->intf) < 0)
		return;

3727 3728
	generic_ocp_read(tp, PLA_TALLYCNT, sizeof(tally), &tally, MCU_TYPE_PLA);

3729 3730
	usb_autopm_put_interface(tp->intf);

3731 3732 3733 3734 3735 3736 3737 3738 3739 3740 3741 3742
	data[0] = le64_to_cpu(tally.tx_packets);
	data[1] = le64_to_cpu(tally.rx_packets);
	data[2] = le64_to_cpu(tally.tx_errors);
	data[3] = le32_to_cpu(tally.rx_errors);
	data[4] = le16_to_cpu(tally.rx_missed);
	data[5] = le16_to_cpu(tally.align_errors);
	data[6] = le32_to_cpu(tally.tx_one_collision);
	data[7] = le32_to_cpu(tally.tx_multi_collision);
	data[8] = le64_to_cpu(tally.rx_unicast);
	data[9] = le64_to_cpu(tally.rx_broadcast);
	data[10] = le32_to_cpu(tally.rx_multicast);
	data[11] = le16_to_cpu(tally.tx_aborted);
H
hayeswang 已提交
3743
	data[12] = le16_to_cpu(tally.tx_underrun);
3744 3745 3746 3747 3748 3749 3750 3751 3752 3753 3754
}

static void rtl8152_get_strings(struct net_device *dev, u32 stringset, u8 *data)
{
	switch (stringset) {
	case ETH_SS_STATS:
		memcpy(data, *rtl8152_gstrings, sizeof(rtl8152_gstrings));
		break;
	}
}

H
hayeswang 已提交
3755 3756 3757 3758 3759 3760 3761 3762 3763 3764 3765 3766 3767 3768 3769 3770 3771 3772 3773 3774 3775 3776 3777 3778 3779 3780 3781 3782 3783 3784 3785 3786 3787 3788 3789 3790 3791 3792 3793 3794 3795 3796 3797 3798 3799 3800 3801 3802 3803 3804 3805 3806 3807 3808 3809 3810 3811 3812 3813 3814 3815 3816 3817 3818 3819 3820 3821 3822 3823 3824 3825 3826 3827 3828 3829 3830 3831 3832 3833 3834 3835 3836 3837 3838 3839 3840 3841 3842 3843 3844
static int r8152_get_eee(struct r8152 *tp, struct ethtool_eee *eee)
{
	u32 ocp_data, lp, adv, supported = 0;
	u16 val;

	val = r8152_mmd_read(tp, MDIO_MMD_PCS, MDIO_PCS_EEE_ABLE);
	supported = mmd_eee_cap_to_ethtool_sup_t(val);

	val = r8152_mmd_read(tp, MDIO_MMD_AN, MDIO_AN_EEE_ADV);
	adv = mmd_eee_adv_to_ethtool_adv_t(val);

	val = r8152_mmd_read(tp, MDIO_MMD_AN, MDIO_AN_EEE_LPABLE);
	lp = mmd_eee_adv_to_ethtool_adv_t(val);

	ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_EEE_CR);
	ocp_data &= EEE_RX_EN | EEE_TX_EN;

	eee->eee_enabled = !!ocp_data;
	eee->eee_active = !!(supported & adv & lp);
	eee->supported = supported;
	eee->advertised = adv;
	eee->lp_advertised = lp;

	return 0;
}

static int r8152_set_eee(struct r8152 *tp, struct ethtool_eee *eee)
{
	u16 val = ethtool_adv_to_mmd_eee_adv_t(eee->advertised);

	r8152_eee_en(tp, eee->eee_enabled);

	if (!eee->eee_enabled)
		val = 0;

	r8152_mmd_write(tp, MDIO_MMD_AN, MDIO_AN_EEE_ADV, val);

	return 0;
}

static int r8153_get_eee(struct r8152 *tp, struct ethtool_eee *eee)
{
	u32 ocp_data, lp, adv, supported = 0;
	u16 val;

	val = ocp_reg_read(tp, OCP_EEE_ABLE);
	supported = mmd_eee_cap_to_ethtool_sup_t(val);

	val = ocp_reg_read(tp, OCP_EEE_ADV);
	adv = mmd_eee_adv_to_ethtool_adv_t(val);

	val = ocp_reg_read(tp, OCP_EEE_LPABLE);
	lp = mmd_eee_adv_to_ethtool_adv_t(val);

	ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_EEE_CR);
	ocp_data &= EEE_RX_EN | EEE_TX_EN;

	eee->eee_enabled = !!ocp_data;
	eee->eee_active = !!(supported & adv & lp);
	eee->supported = supported;
	eee->advertised = adv;
	eee->lp_advertised = lp;

	return 0;
}

static int r8153_set_eee(struct r8152 *tp, struct ethtool_eee *eee)
{
	u16 val = ethtool_adv_to_mmd_eee_adv_t(eee->advertised);

	r8153_eee_en(tp, eee->eee_enabled);

	if (!eee->eee_enabled)
		val = 0;

	ocp_reg_write(tp, OCP_EEE_ADV, val);

	return 0;
}

static int
rtl_ethtool_get_eee(struct net_device *net, struct ethtool_eee *edata)
{
	struct r8152 *tp = netdev_priv(net);
	int ret;

	ret = usb_autopm_get_interface(tp->intf);
	if (ret < 0)
		goto out;

H
hayeswang 已提交
3845 3846
	mutex_lock(&tp->control);

H
hayeswang 已提交
3847 3848
	ret = tp->rtl_ops.eee_get(tp, edata);

H
hayeswang 已提交
3849 3850
	mutex_unlock(&tp->control);

H
hayeswang 已提交
3851 3852 3853 3854 3855 3856 3857 3858 3859 3860 3861 3862 3863 3864 3865 3866
	usb_autopm_put_interface(tp->intf);

out:
	return ret;
}

static int
rtl_ethtool_set_eee(struct net_device *net, struct ethtool_eee *edata)
{
	struct r8152 *tp = netdev_priv(net);
	int ret;

	ret = usb_autopm_get_interface(tp->intf);
	if (ret < 0)
		goto out;

H
hayeswang 已提交
3867 3868
	mutex_lock(&tp->control);

H
hayeswang 已提交
3869
	ret = tp->rtl_ops.eee_set(tp, edata);
H
hayeswang 已提交
3870 3871
	if (!ret)
		ret = mii_nway_restart(&tp->mii);
H
hayeswang 已提交
3872

H
hayeswang 已提交
3873 3874
	mutex_unlock(&tp->control);

H
hayeswang 已提交
3875 3876 3877 3878 3879 3880
	usb_autopm_put_interface(tp->intf);

out:
	return ret;
}

H
hayeswang 已提交
3881 3882 3883 3884 3885 3886 3887 3888 3889 3890 3891 3892 3893 3894 3895 3896 3897 3898 3899 3900 3901
static int rtl8152_nway_reset(struct net_device *dev)
{
	struct r8152 *tp = netdev_priv(dev);
	int ret;

	ret = usb_autopm_get_interface(tp->intf);
	if (ret < 0)
		goto out;

	mutex_lock(&tp->control);

	ret = mii_nway_restart(&tp->mii);

	mutex_unlock(&tp->control);

	usb_autopm_put_interface(tp->intf);

out:
	return ret;
}

H
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3902 3903 3904 3905 3906 3907 3908 3909 3910 3911 3912 3913 3914 3915 3916 3917 3918 3919 3920 3921 3922 3923 3924 3925 3926 3927 3928 3929 3930 3931 3932 3933 3934 3935 3936 3937 3938 3939 3940 3941 3942 3943 3944 3945 3946 3947 3948 3949 3950 3951 3952 3953 3954 3955 3956
static int rtl8152_get_coalesce(struct net_device *netdev,
				struct ethtool_coalesce *coalesce)
{
	struct r8152 *tp = netdev_priv(netdev);

	switch (tp->version) {
	case RTL_VER_01:
	case RTL_VER_02:
		return -EOPNOTSUPP;
	default:
		break;
	}

	coalesce->rx_coalesce_usecs = tp->coalesce;

	return 0;
}

static int rtl8152_set_coalesce(struct net_device *netdev,
				struct ethtool_coalesce *coalesce)
{
	struct r8152 *tp = netdev_priv(netdev);
	int ret;

	switch (tp->version) {
	case RTL_VER_01:
	case RTL_VER_02:
		return -EOPNOTSUPP;
	default:
		break;
	}

	if (coalesce->rx_coalesce_usecs > COALESCE_SLOW)
		return -EINVAL;

	ret = usb_autopm_get_interface(tp->intf);
	if (ret < 0)
		return ret;

	mutex_lock(&tp->control);

	if (tp->coalesce != coalesce->rx_coalesce_usecs) {
		tp->coalesce = coalesce->rx_coalesce_usecs;

		if (netif_running(tp->netdev) && netif_carrier_ok(netdev))
			r8153_set_rx_early_timeout(tp);
	}

	mutex_unlock(&tp->control);

	usb_autopm_put_interface(tp->intf);

	return ret;
}

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3957 3958 3959 3960 3961
static struct ethtool_ops ops = {
	.get_drvinfo = rtl8152_get_drvinfo,
	.get_settings = rtl8152_get_settings,
	.set_settings = rtl8152_set_settings,
	.get_link = ethtool_op_get_link,
H
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3962
	.nway_reset = rtl8152_nway_reset,
3963 3964
	.get_msglevel = rtl8152_get_msglevel,
	.set_msglevel = rtl8152_set_msglevel,
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3965 3966
	.get_wol = rtl8152_get_wol,
	.set_wol = rtl8152_set_wol,
3967 3968 3969
	.get_strings = rtl8152_get_strings,
	.get_sset_count = rtl8152_get_sset_count,
	.get_ethtool_stats = rtl8152_get_ethtool_stats,
H
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3970 3971
	.get_coalesce = rtl8152_get_coalesce,
	.set_coalesce = rtl8152_set_coalesce,
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3972 3973
	.get_eee = rtl_ethtool_get_eee,
	.set_eee = rtl_ethtool_set_eee,
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3974 3975 3976 3977 3978 3979
};

static int rtl8152_ioctl(struct net_device *netdev, struct ifreq *rq, int cmd)
{
	struct r8152 *tp = netdev_priv(netdev);
	struct mii_ioctl_data *data = if_mii(rq);
H
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3980 3981
	int res;

H
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3982 3983 3984
	if (test_bit(RTL8152_UNPLUG, &tp->flags))
		return -ENODEV;

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3985 3986 3987
	res = usb_autopm_get_interface(tp->intf);
	if (res < 0)
		goto out;
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3988 3989 3990 3991 3992 3993 3994

	switch (cmd) {
	case SIOCGMIIPHY:
		data->phy_id = R8152_PHY_ID; /* Internal PHY */
		break;

	case SIOCGMIIREG:
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3995
		mutex_lock(&tp->control);
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3996
		data->val_out = r8152_mdio_read(tp, data->reg_num);
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3997
		mutex_unlock(&tp->control);
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		break;

	case SIOCSMIIREG:
		if (!capable(CAP_NET_ADMIN)) {
			res = -EPERM;
			break;
		}
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4005
		mutex_lock(&tp->control);
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4006
		r8152_mdio_write(tp, data->reg_num, data->val_in);
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4007
		mutex_unlock(&tp->control);
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4008 4009 4010 4011 4012 4013
		break;

	default:
		res = -EOPNOTSUPP;
	}

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4014 4015 4016
	usb_autopm_put_interface(tp->intf);

out:
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4017 4018 4019
	return res;
}

4020 4021 4022
static int rtl8152_change_mtu(struct net_device *dev, int new_mtu)
{
	struct r8152 *tp = netdev_priv(dev);
4023
	int ret;
4024 4025 4026 4027 4028 4029 4030 4031 4032 4033 4034 4035

	switch (tp->version) {
	case RTL_VER_01:
	case RTL_VER_02:
		return eth_change_mtu(dev, new_mtu);
	default:
		break;
	}

	if (new_mtu < 68 || new_mtu > RTL8153_MAX_MTU)
		return -EINVAL;

4036 4037 4038 4039 4040 4041
	ret = usb_autopm_get_interface(tp->intf);
	if (ret < 0)
		return ret;

	mutex_lock(&tp->control);

4042 4043
	dev->mtu = new_mtu;

4044 4045 4046 4047 4048 4049 4050 4051
	if (netif_running(dev) && netif_carrier_ok(dev))
		r8153_set_rx_early_size(tp);

	mutex_unlock(&tp->control);

	usb_autopm_put_interface(tp->intf);

	return ret;
4052 4053
}

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4054 4055 4056 4057 4058 4059
static const struct net_device_ops rtl8152_netdev_ops = {
	.ndo_open		= rtl8152_open,
	.ndo_stop		= rtl8152_close,
	.ndo_do_ioctl		= rtl8152_ioctl,
	.ndo_start_xmit		= rtl8152_start_xmit,
	.ndo_tx_timeout		= rtl8152_tx_timeout,
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4060
	.ndo_set_features	= rtl8152_set_features,
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4061 4062
	.ndo_set_rx_mode	= rtl8152_set_rx_mode,
	.ndo_set_mac_address	= rtl8152_set_mac_address,
4063
	.ndo_change_mtu		= rtl8152_change_mtu,
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4064
	.ndo_validate_addr	= eth_validate_addr,
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4065
	.ndo_features_check	= rtl8152_features_check,
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4066 4067 4068 4069 4070 4071 4072 4073 4074 4075 4076 4077 4078 4079 4080 4081 4082
};

static void r8152b_get_version(struct r8152 *tp)
{
	u32	ocp_data;
	u16	version;

	ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_TCR1);
	version = (u16)(ocp_data & VERSION_MASK);

	switch (version) {
	case 0x4c00:
		tp->version = RTL_VER_01;
		break;
	case 0x4c10:
		tp->version = RTL_VER_02;
		break;
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	case 0x5c00:
		tp->version = RTL_VER_03;
		tp->mii.supports_gmii = 1;
		break;
	case 0x5c10:
		tp->version = RTL_VER_04;
		tp->mii.supports_gmii = 1;
		break;
	case 0x5c20:
		tp->version = RTL_VER_05;
		tp->mii.supports_gmii = 1;
		break;
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	case 0x5c30:
		tp->version = RTL_VER_06;
		tp->mii.supports_gmii = 1;
		break;
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	default:
		netif_info(tp, probe, tp->netdev,
			   "Unknown version 0x%04x\n", version);
		break;
	}
}

4106 4107
static void rtl8152_unload(struct r8152 *tp)
{
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	if (test_bit(RTL8152_UNPLUG, &tp->flags))
		return;

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4111 4112
	if (tp->version != RTL_VER_01)
		r8152_power_cut_en(tp, true);
4113 4114
}

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4115 4116
static void rtl8153_unload(struct r8152 *tp)
{
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4117 4118 4119
	if (test_bit(RTL8152_UNPLUG, &tp->flags))
		return;

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4120
	r8153_power_cut_en(tp, false);
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4121 4122
}

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4123
static int rtl_ops_init(struct r8152 *tp)
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4124 4125
{
	struct rtl_ops *ops = &tp->rtl_ops;
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	int ret = 0;

	switch (tp->version) {
	case RTL_VER_01:
	case RTL_VER_02:
		ops->init		= r8152b_init;
		ops->enable		= rtl8152_enable;
		ops->disable		= rtl8152_disable;
		ops->up			= rtl8152_up;
		ops->down		= rtl8152_down;
		ops->unload		= rtl8152_unload;
		ops->eee_get		= r8152_get_eee;
		ops->eee_set		= r8152_set_eee;
4139
		ops->in_nway		= rtl8152_in_nway;
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		break;

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4142 4143 4144
	case RTL_VER_03:
	case RTL_VER_04:
	case RTL_VER_05:
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4145
	case RTL_VER_06:
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4146 4147 4148 4149 4150 4151 4152 4153
		ops->init		= r8153_init;
		ops->enable		= rtl8153_enable;
		ops->disable		= rtl8153_disable;
		ops->up			= rtl8153_up;
		ops->down		= rtl8153_down;
		ops->unload		= rtl8153_unload;
		ops->eee_get		= r8153_get_eee;
		ops->eee_set		= r8153_set_eee;
4154
		ops->in_nway		= rtl8153_in_nway;
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4155 4156 4157
		break;

	default:
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4158 4159
		ret = -ENODEV;
		netif_err(tp, probe, tp->netdev, "Unknown Device\n");
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4160 4161 4162 4163 4164 4165
		break;
	}

	return ret;
}

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4166 4167 4168 4169 4170 4171
static int rtl8152_probe(struct usb_interface *intf,
			 const struct usb_device_id *id)
{
	struct usb_device *udev = interface_to_usbdev(intf);
	struct r8152 *tp;
	struct net_device *netdev;
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4172
	int ret;
H
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4173

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4174 4175 4176 4177 4178 4179
	if (udev->actconfig->desc.bConfigurationValue != 1) {
		usb_driver_set_configuration(udev, 1);
		return -ENODEV;
	}

	usb_reset_device(udev);
H
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4180 4181
	netdev = alloc_etherdev(sizeof(struct r8152));
	if (!netdev) {
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4182
		dev_err(&intf->dev, "Out of memory\n");
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4183 4184 4185
		return -ENOMEM;
	}

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4186
	SET_NETDEV_DEV(netdev, &intf->dev);
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4187 4188 4189
	tp = netdev_priv(netdev);
	tp->msg_enable = 0x7FFF;

4190 4191 4192 4193
	tp->udev = udev;
	tp->netdev = netdev;
	tp->intf = intf;

H
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4194
	r8152b_get_version(tp);
H
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4195
	ret = rtl_ops_init(tp);
4196 4197
	if (ret)
		goto out;
H
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4198

H
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4199
	mutex_init(&tp->control);
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4200 4201 4202 4203
	INIT_DELAYED_WORK(&tp->schedule, rtl_work_func_t);

	netdev->netdev_ops = &rtl8152_netdev_ops;
	netdev->watchdog_timeo = RTL8152_TX_TIMEOUT;
H
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4204

H
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4205
	netdev->features |= NETIF_F_RXCSUM | NETIF_F_IP_CSUM | NETIF_F_SG |
H
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4206
			    NETIF_F_TSO | NETIF_F_FRAGLIST | NETIF_F_IPV6_CSUM |
H
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4207 4208
			    NETIF_F_TSO6 | NETIF_F_HW_VLAN_CTAG_RX |
			    NETIF_F_HW_VLAN_CTAG_TX;
H
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4209
	netdev->hw_features = NETIF_F_RXCSUM | NETIF_F_IP_CSUM | NETIF_F_SG |
H
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4210
			      NETIF_F_TSO | NETIF_F_FRAGLIST |
H
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4211
			      NETIF_F_IPV6_CSUM | NETIF_F_TSO6 |
4212
			      NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HW_VLAN_CTAG_TX;
H
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4213 4214 4215
	netdev->vlan_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO |
				NETIF_F_HIGHDMA | NETIF_F_FRAGLIST |
				NETIF_F_IPV6_CSUM | NETIF_F_TSO6;
4216

4217
	netdev->ethtool_ops = &ops;
H
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4218
	netif_set_gso_max_size(netdev, RTL_LIMITED_TSO_SIZE);
H
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4219 4220 4221 4222 4223 4224 4225 4226

	tp->mii.dev = netdev;
	tp->mii.mdio_read = read_mii_word;
	tp->mii.mdio_write = write_mii_word;
	tp->mii.phy_id_mask = 0x3f;
	tp->mii.reg_num_mask = 0x1f;
	tp->mii.phy_id = R8152_PHY_ID;

H
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4227 4228
	switch (udev->speed) {
	case USB_SPEED_SUPER:
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4229
	case USB_SPEED_SUPER_PLUS:
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4230 4231 4232 4233 4234 4235 4236 4237 4238 4239
		tp->coalesce = COALESCE_SUPER;
		break;
	case USB_SPEED_HIGH:
		tp->coalesce = COALESCE_HIGH;
		break;
	default:
		tp->coalesce = COALESCE_SLOW;
		break;
	}

H
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4240 4241
	intf->needs_remote_wakeup = 1;

H
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4242
	tp->rtl_ops.init(tp);
H
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4243 4244 4245
	set_ethernet_addr(tp);

	usb_set_intfdata(intf, tp);
H
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4246
	netif_napi_add(netdev, &tp->napi, r8152_poll, RTL8152_NAPI_WEIGHT);
H
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4247

H
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4248 4249
	ret = register_netdev(netdev);
	if (ret != 0) {
H
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4250
		netif_err(tp, probe, netdev, "couldn't register the device\n");
H
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4251
		goto out1;
H
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4252 4253
	}

H
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4254 4255 4256
	if (!rtl_can_wakeup(tp))
		__rtl_set_wol(tp, 0);

H
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4257 4258 4259 4260 4261 4262
	tp->saved_wolopts = __rtl_get_wol(tp);
	if (tp->saved_wolopts)
		device_set_wakeup_enable(&udev->dev, true);
	else
		device_set_wakeup_enable(&udev->dev, false);

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	netif_info(tp, probe, netdev, "%s\n", DRIVER_VERSION);
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4264 4265 4266 4267

	return 0;

out1:
H
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4268
	netif_napi_del(&tp->napi);
H
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4269
	usb_set_intfdata(intf, NULL);
H
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4270 4271
out:
	free_netdev(netdev);
H
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4272
	return ret;
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4273 4274 4275 4276 4277 4278 4279 4280
}

static void rtl8152_disconnect(struct usb_interface *intf)
{
	struct r8152 *tp = usb_get_intfdata(intf);

	usb_set_intfdata(intf, NULL);
	if (tp) {
H
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4281 4282 4283 4284 4285
		struct usb_device *udev = tp->udev;

		if (udev->state == USB_STATE_NOTATTACHED)
			set_bit(RTL8152_UNPLUG, &tp->flags);

H
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4286
		netif_napi_del(&tp->napi);
H
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4287
		unregister_netdev(tp->netdev);
H
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4288
		tp->rtl_ops.unload(tp);
H
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4289 4290 4291 4292
		free_netdev(tp->netdev);
	}
}

H
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4293 4294 4295 4296 4297 4298 4299 4300 4301 4302 4303 4304 4305 4306 4307 4308
#define REALTEK_USB_DEVICE(vend, prod)	\
	.match_flags = USB_DEVICE_ID_MATCH_DEVICE | \
		       USB_DEVICE_ID_MATCH_INT_CLASS, \
	.idVendor = (vend), \
	.idProduct = (prod), \
	.bInterfaceClass = USB_CLASS_VENDOR_SPEC \
}, \
{ \
	.match_flags = USB_DEVICE_ID_MATCH_INT_INFO | \
		       USB_DEVICE_ID_MATCH_DEVICE, \
	.idVendor = (vend), \
	.idProduct = (prod), \
	.bInterfaceClass = USB_CLASS_COMM, \
	.bInterfaceSubClass = USB_CDC_SUBCLASS_ETHERNET, \
	.bInterfaceProtocol = USB_CDC_PROTO_NONE

H
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4309 4310
/* table of devices that work with this driver */
static struct usb_device_id rtl8152_table[] = {
H
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4311 4312 4313
	{REALTEK_USB_DEVICE(VENDOR_ID_REALTEK, 0x8152)},
	{REALTEK_USB_DEVICE(VENDOR_ID_REALTEK, 0x8153)},
	{REALTEK_USB_DEVICE(VENDOR_ID_SAMSUNG, 0xa101)},
4314
	{REALTEK_USB_DEVICE(VENDOR_ID_LENOVO,  0x7205)},
4315
	{REALTEK_USB_DEVICE(VENDOR_ID_LENOVO,  0x304f)},
4316
	{REALTEK_USB_DEVICE(VENDOR_ID_NVIDIA,  0x09ff)},
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4317 4318 4319 4320 4321 4322 4323
	{}
};

MODULE_DEVICE_TABLE(usb, rtl8152_table);

static struct usb_driver rtl8152_driver = {
	.name =		MODULENAME,
H
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4324
	.id_table =	rtl8152_table,
H
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4325 4326 4327
	.probe =	rtl8152_probe,
	.disconnect =	rtl8152_disconnect,
	.suspend =	rtl8152_suspend,
H
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4328
	.resume =	rtl8152_resume,
H
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4329
	.reset_resume =	rtl8152_reset_resume,
H
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4330 4331
	.pre_reset =	rtl8152_pre_reset,
	.post_reset =	rtl8152_post_reset,
H
hayeswang 已提交
4332
	.supports_autosuspend = 1,
H
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4333
	.disable_hub_initiated_lpm = 1,
H
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4334 4335
};

4336
module_usb_driver(rtl8152_driver);
H
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4337 4338 4339 4340

MODULE_AUTHOR(DRIVER_AUTHOR);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");