text: // SPDX-License-Identifier: GPL-2.0-only
  /*
   *  Copyright (c) 2014 Realtek Semiconductor Corp. All rights reserved.
   */
  
  #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>
  #include <linux/list.h>
  #include <linux/ip.h>
  #include <linux/ipv6.h>
  #include <net/ip6_checksum.h>
  #include <uapi/linux/mdio.h>
  #include <linux/mdio.h>
  #include <linux/usb/cdc.h>
  #include <linux/suspend.h>
  #include <linux/atomic.h>
  #include <linux/acpi.h>
  
  /* Information for net-next */
  #define NETNEXT_VERSION		"10"
  
  /* Information for net */
  #define NET_VERSION		"11"
  
  #define DRIVER_VERSION		"v1." NETNEXT_VERSION "." NET_VERSION
  #define DRIVER_AUTHOR "Realtek linux nic maintainers <nic_swsd@realtek.com>"
  #define DRIVER_DESC "Realtek RTL8152/RTL8153 Based USB Ethernet Adapters"
  #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
  #define PLA_DMY_REG0		0xc0b0
  #define PLA_FMC			0xc0b4
  #define PLA_CFG_WOL		0xc0b6
  #define PLA_TEREDO_CFG		0xc0bc
  #define PLA_TEREDO_WAKE_BASE	0xc0c4
  #define PLA_MAR			0xcd00
  #define PLA_BACKUP		0xd000
  #define PLA_BDC_CR		0xd1a0
  #define PLA_TEREDO_TIMER	0xd2cc
  #define PLA_REALWOW_TIMER	0xd2e8
  #define PLA_SUSPEND_FLAG	0xd38a
  #define PLA_INDICATE_FALG	0xd38c
  #define PLA_EXTRA_STATUS	0xd398
  #define PLA_EFUSE_DATA		0xdd00
  #define PLA_EFUSE_CMD		0xdd02
  #define PLA_LEDSEL		0xdd90
  #define PLA_LED_FEATURE		0xdd92
  #define PLA_PHYAR		0xde00
  #define PLA_BOOT_CTRL		0xe004
  #define PLA_LWAKE_CTRL_REG	0xe007
  #define PLA_GPHY_INTR_IMR	0xe022
  #define PLA_EEE_CR		0xe040
  #define PLA_EEEP_CR		0xe080
  #define PLA_MAC_PWR_CTRL	0xe0c0
  #define PLA_MAC_PWR_CTRL2	0xe0ca
  #define PLA_MAC_PWR_CTRL3	0xe0cc
  #define PLA_MAC_PWR_CTRL4	0xe0ce
  #define PLA_WDT6_CTRL		0xe428
  #define PLA_TCR0		0xe610
  #define PLA_TCR1		0xe612
  #define PLA_MTPS		0xe615
  #define PLA_TXFIFO_CTRL		0xe618
  #define PLA_RSTTALLY		0xe800
  #define PLA_CR			0xe813
  #define PLA_CRWECR		0xe81c
  #define PLA_CONFIG12		0xe81e	/* CONFIG1, CONFIG2 */
  #define PLA_CONFIG34		0xe820	/* CONFIG3, CONFIG4 */
  #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
  #define PLA_TALLYCNT		0xe890
  #define PLA_SFF_STS_7		0xe8de
  #define PLA_PHYSTATUS		0xe908
  #define PLA_CONFIG6		0xe90a /* CONFIG6 */
  #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
  #define PLA_BP_EN		0xfc38
  
  #define USB_USB2PHY		0xb41e
  #define USB_SSPHYLINK1		0xb426
  #define USB_SSPHYLINK2		0xb428
  #define USB_U2P3_CTRL		0xb460
  #define USB_CSR_DUMMY1		0xb464
  #define USB_CSR_DUMMY2		0xb466
  #define USB_DEV_STAT		0xb808
  #define USB_CONNECT_TIMER	0xcbf8
  #define USB_MSC_TIMER		0xcbfc
  #define USB_BURST_SIZE		0xcfc0
  #define USB_LPM_CONFIG		0xcfd8
  #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
  #define USB_RX_EARLY_TIMEOUT	0xd42c
  #define USB_RX_EARLY_SIZE	0xd42e
  #define USB_PM_CTRL_STATUS	0xd432	/* RTL8153A */
  #define USB_RX_EXTRA_AGGR_TMR	0xd432	/* RTL8153B */
  #define USB_TX_DMA		0xd434
  #define USB_UPT_RXDMA_OWN	0xd437
  #define USB_TOLERANCE		0xd490
  #define USB_LPM_CTRL		0xd41a
  #define USB_BMU_RESET		0xd4b0
  #define USB_U1U2_TIMER		0xd4da
  #define USB_UPS_CTRL		0xd800
  #define USB_POWER_CUT		0xd80a
  #define USB_MISC_0		0xd81a
  #define USB_MISC_1		0xd81f
  #define USB_AFE_CTRL2		0xd824
  #define USB_UPS_CFG		0xd842
  #define USB_UPS_FLAGS		0xd848
  #define USB_WDT11_CTRL		0xe43c
  #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
  #define USB_BP_EN		0xfc38
  #define USB_BP_8		0xfc38
  #define USB_BP_9		0xfc3a
  #define USB_BP_10		0xfc3c
  #define USB_BP_11		0xfc3e
  #define USB_BP_12		0xfc40
  #define USB_BP_13		0xfc42
  #define USB_BP_14		0xfc44
  #define USB_BP_15		0xfc46
  #define USB_BP2_EN		0xfc48
  
  /* OCP Registers */
  #define OCP_ALDPS_CONFIG	0x2010
  #define OCP_EEE_CONFIG1		0x2080
  #define OCP_EEE_CONFIG2		0x2092
  #define OCP_EEE_CONFIG3		0x2094
  #define OCP_BASE_MII		0xa400
  #define OCP_EEE_AR		0xa41a
  #define OCP_EEE_DATA		0xa41c
  #define OCP_PHY_STATUS		0xa420
  #define OCP_NCTL_CFG		0xa42c
  #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
  #define OCP_EEE_ABLE		0xa5c4
  #define OCP_EEE_ADV		0xa5d0
  #define OCP_EEE_LPABLE		0xa5d2
  #define OCP_PHY_STATE		0xa708		/* nway state for 8153 */
  #define OCP_PHY_PATCH_STAT	0xb800
  #define OCP_PHY_PATCH_CMD	0xb820
  #define OCP_ADC_IOFFSET		0xbcfc
  #define OCP_ADC_CFG		0xbc06
  #define OCP_SYSCLK_CFG		0xc416
  
  /* SRAM Register */
  #define SRAM_GREEN_CFG		0x8011
  #define SRAM_LPF_CFG		0x8012
  #define SRAM_10M_AMP1		0x8080
  #define SRAM_10M_AMP2		0x8082
  #define SRAM_IMPEDANCE		0x8084
  
  /* 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
  #define RXFIFO_THR2_NORMAL	0x00a0
  
  /* PLA_RXFIFO_CTRL2 */
  #define RXFIFO_THR3_FULL	0x00000078
  #define RXFIFO_THR3_HIGH	0x00000048
  #define RXFIFO_THR3_OOB		0x0000005a
  #define RXFIFO_THR3_NORMAL	0x0110
  
  /* PLA_TXFIFO_CTRL */
  #define TXFIFO_THR_NORMAL	0x00400008
  #define TXFIFO_THR_NORMAL2	0x01000008
  
  /* PLA_DMY_REG0 */
  #define ECM_ALDPS		0x0002
  
  /* PLA_FMC */
  #define FMC_FCR_MCU_EN		0x0001
  
  /* PLA_EEEP_CR */
  #define EEEP_CR_EEEP_TX		0x0002
  
  /* PLA_WDT6_CTRL */
  #define WDT6_SET_MODE		0x0010
  
  /* PLA_TCR0 */
  #define TCR0_TX_EMPTY		0x0800
  #define TCR0_AUTO_FIFO		0x0080
  
  /* PLA_TCR1 */
  #define VERSION_MASK		0x7cf0
  
  /* PLA_MTPS */
  #define MTPS_JUMBO		(12 * 1024 / 64)
  #define MTPS_DEFAULT		(6 * 1024 / 64)
  
  /* PLA_RSTTALLY */
  #define TALLY_RESET		0x0001
  
  /* 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
  
  /* PLA_TEREDO_CFG */
  #define TEREDO_SEL		0x8000
  #define TEREDO_WAKE_MASK	0x7f00
  #define TEREDO_RS_EVENT_MASK	0x00fe
  #define OOB_TEREDO_EN		0x0001
  
  /* PLA_BDC_CR */
  #define ALDPS_PROXY_MODE	0x0001
  
  /* PLA_EFUSE_CMD */
  #define EFUSE_READ_CMD		BIT(15)
  #define EFUSE_DATA_BIT16	BIT(7)
  
  /* PLA_CONFIG34 */
  #define LINK_ON_WAKE_EN		0x0010
  #define LINK_OFF_WAKE_EN	0x0008
  
  /* PLA_CONFIG6 */
  #define LANWAKE_CLR_EN		BIT(0)
  
  /* PLA_CONFIG5 */
  #define BWF_EN			0x0040
  #define MWF_EN			0x0020
  #define UWF_EN			0x0010
  #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
  #define TEST_IO_OFF		BIT(4)
  
  /* PLA_MAC_PWR_CTRL */
  #define D3_CLK_GATED_EN		0x00004000
  #define MCU_CLK_RATIO		0x07010f07
  #define MCU_CLK_RATIO_MASK	0x0f0f0f0f
  #define ALDPS_SPDWN_RATIO	0x0f87
  
  /* PLA_MAC_PWR_CTRL2 */
  #define EEE_SPDWN_RATIO		0x8007
  #define MAC_CLK_SPDWN_EN	BIT(15)
  
  /* PLA_MAC_PWR_CTRL3 */
  #define PLA_MCU_SPDWN_EN	BIT(14)
  #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
  
  /* 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
  
  /* PLA_BOOT_CTRL */
  #define AUTOLOAD_DONE		0x0002
  
  /* PLA_LWAKE_CTRL_REG */
  #define LANWAKE_PIN		BIT(7)
  
  /* PLA_SUSPEND_FLAG */
  #define LINK_CHG_EVENT		BIT(0)
  
  /* PLA_INDICATE_FALG */
  #define UPCOMING_RUNTIME_D3	BIT(0)
  
  /* PLA_EXTRA_STATUS */
  #define LINK_CHANGE_FLAG	BIT(8)
  
  /* USB_USB2PHY */
  #define USB2PHY_SUSPEND		0x0001
  #define USB2PHY_L1		0x0002
  
  /* USB_SSPHYLINK1 */
  #define DELAY_PHY_PWR_CHG	BIT(1)
  
  /* 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
  
  /* USB_DEV_STAT */
  #define STAT_SPEED_MASK		0x0006
  #define STAT_SPEED_HIGH		0x0000
  #define STAT_SPEED_FULL		0x0002
  
  /* USB_LPM_CONFIG */
  #define LPM_U1U2_EN		BIT(0)
  
  /* USB_TX_AGG */
  #define TX_AGG_MAX_THRESHOLD	0x03
  
  /* USB_RX_BUF_TH */
  #define RX_THR_SUPPER		0x0c350180
  #define RX_THR_HIGH		0x7a120180
  #define RX_THR_SLOW		0xffff0180
  #define RX_THR_B		0x00010001
  
  /* USB_TX_DMA */
  #define TEST_MODE_DISABLE	0x00000001
  #define TX_SIZE_ADJUST1		0x00000100
  
  /* USB_BMU_RESET */
  #define BMU_RESET_EP_IN		0x01
  #define BMU_RESET_EP_OUT	0x02
  
  /* USB_UPT_RXDMA_OWN */
  #define OWN_UPDATE		BIT(0)
  #define OWN_CLEAR		BIT(1)
  
  /* USB_UPS_CTRL */
  #define POWER_CUT		0x0100
  
  /* USB_PM_CTRL_STATUS */
  #define RESUME_INDICATE		0x0001
  
  /* USB_USB_CTRL */
  #define RX_AGG_DISABLE		0x0010
  #define RX_ZERO_EN		0x0080
  
  /* USB_U2P3_CTRL */
  #define U2P3_ENABLE		0x0001
  
  /* USB_POWER_CUT */
  #define PWR_EN			0x0001
  #define PHASE2_EN		0x0008
  #define UPS_EN			BIT(4)
  #define USP_PREWAKE		BIT(5)
  
  /* USB_MISC_0 */
  #define PCUT_STATUS		0x0001
  
  /* USB_RX_EARLY_TIMEOUT */
  #define COALESCE_SUPER		 85000U
  #define COALESCE_HIGH		250000U
  #define COALESCE_SLOW		524280U
  
  /* USB_WDT11_CTRL */
  #define TIMER11_EN		0x0001
  
  /* USB_LPM_CTRL */
  /* bit 4 ~ 5: fifo empty boundary */
  #define FIFO_EMPTY_1FB		0x30	/* 0x1fb * 64 = 32448 bytes */
  /* bit 2 ~ 3: LMP timer */
  #define LPM_TIMER_MASK		0x0c
  #define LPM_TIMER_500MS		0x04	/* 500 ms */
  #define LPM_TIMER_500US		0x0c	/* 500 us */
  #define ROK_EXIT_LPM		0x02
  
  /* USB_AFE_CTRL2 */
  #define SEN_VAL_MASK		0xf800
  #define SEN_VAL_NORMAL		0xa000
  #define SEL_RXIDLE		0x0100
  
  /* USB_UPS_CFG */
  #define SAW_CNT_1MS_MASK	0x0fff
  
  /* USB_UPS_FLAGS */
  #define UPS_FLAGS_R_TUNE		BIT(0)
  #define UPS_FLAGS_EN_10M_CKDIV		BIT(1)
  #define UPS_FLAGS_250M_CKDIV		BIT(2)
  #define UPS_FLAGS_EN_ALDPS		BIT(3)
  #define UPS_FLAGS_CTAP_SHORT_DIS	BIT(4)
  #define ups_flags_speed(x)		((x) << 16)
  #define UPS_FLAGS_EN_EEE		BIT(20)
  #define UPS_FLAGS_EN_500M_EEE		BIT(21)
  #define UPS_FLAGS_EN_EEE_CKDIV		BIT(22)
  #define UPS_FLAGS_EEE_PLLOFF_100	BIT(23)
  #define UPS_FLAGS_EEE_PLLOFF_GIGA	BIT(24)
  #define UPS_FLAGS_EEE_CMOD_LV_EN	BIT(25)
  #define UPS_FLAGS_EN_GREEN		BIT(26)
  #define UPS_FLAGS_EN_FLOW_CTR		BIT(27)
  
  enum spd_duplex {
  	NWAY_10M_HALF,
  	NWAY_10M_FULL,
  	NWAY_100M_HALF,
  	NWAY_100M_FULL,
  	NWAY_1000M_FULL,
  	FORCE_10M_HALF,
  	FORCE_10M_FULL,
  	FORCE_100M_HALF,
  	FORCE_100M_FULL,
  };
  
  /* OCP_ALDPS_CONFIG */
  #define ENPWRSAVE		0x8000
  #define ENPDNPS			0x0200
  #define LINKENA			0x0100
  #define DIS_SDSAVE		0x0010
  
  /* OCP_PHY_STATUS */
  #define PHY_STAT_MASK		0x0007
  #define PHY_STAT_EXT_INIT	2
  #define PHY_STAT_LAN_ON		3
  #define PHY_STAT_PWRDN		5
  
  /* OCP_NCTL_CFG */
  #define PGA_RETURN_EN		BIT(1)
  
  /* OCP_POWER_CFG */
  #define EEE_CLKDIV_EN		0x8000
  #define EN_ALDPS		0x0004
  #define EN_10M_PLLOFF		0x0001
  
  /* 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
  #define sd_rise_time_mask	0x0070
  #define sd_rise_time(x)		(min(x, 7) << 4)	/* bit 4 ~ 6 */
  #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 */
  #define fast_snr_mask		0xff80
  #define fast_snr(x)		(min(x, 0x1ff) << 7)	/* bit 7 ~ 15 */
  #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 */
  
  /* OCP_EEE_CFG */
  #define CTAP_SHORT_EN		0x0040
  #define EEE10_EN		0x0010
  
  /* OCP_DOWN_SPEED */
  #define EN_EEE_CMODE		BIT(14)
  #define EN_EEE_1000		BIT(13)
  #define EN_EEE_100		BIT(12)
  #define EN_10M_CLKDIV		BIT(11)
  #define EN_10M_BGOFF		0x0080
  
  /* OCP_PHY_STATE */
  #define TXDIS_STATE		0x01
  #define ABD_STATE		0x02
  
  /* OCP_PHY_PATCH_STAT */
  #define PATCH_READY		BIT(6)
  
  /* OCP_PHY_PATCH_CMD */
  #define PATCH_REQUEST		BIT(4)
  
  /* OCP_ADC_CFG */
  #define CKADSEL_L		0x0100
  #define ADC_EN			0x0080
  #define EN_EMI_L		0x0040
  
  /* OCP_SYSCLK_CFG */
  #define clk_div_expo(x)		(min(x, 5) << 8)
  
  /* SRAM_GREEN_CFG */
  #define GREEN_ETH_EN		BIT(15)
  #define R_TUNE_EN		BIT(11)
  
  /* 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
  
  /* MAC PASSTHRU */
  #define AD_MASK			0xfee0
  #define BND_MASK		0x0004
  #define BD_MASK			0x0001
  #define EFUSE			0xcfdb
  #define PASS_THRU_MASK		0x1
  
  enum rtl_register_content {
  	_1000bps	= 0x10,
  	_100bps		= 0x08,
  	_10bps		= 0x04,
  	LINK_STATUS	= 0x02,
  	FULL_DUP	= 0x01,
  };
  
  #define RTL8152_MAX_TX		4
  #define RTL8152_MAX_RX		10
  #define INTBUFSIZE		2
  #define TX_ALIGN		4
  #define RX_ALIGN		8
  
  #define RTL8152_RX_MAX_PENDING	4096
  #define RTL8152_RXFG_HEADSZ	256
  
  #define INTR_LINK		0x0004
  
  #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
  
  #define RTL8153_MAX_PACKET	9216 /* 9K */
  #define RTL8153_MAX_MTU		(RTL8153_MAX_PACKET - VLAN_ETH_HLEN - \
  				 ETH_FCS_LEN)
  #define RTL8152_RMS		(VLAN_ETH_FRAME_LEN + ETH_FCS_LEN)
  #define RTL8153_RMS		RTL8153_MAX_PACKET
  #define RTL8152_TX_TIMEOUT	(5 * HZ)
  #define RTL8152_NAPI_WEIGHT	64
  #define rx_reserved_size(x)	((x) + VLAN_ETH_HLEN + ETH_FCS_LEN + \
  				 sizeof(struct rx_desc) + RX_ALIGN)
  
  /* rtl8152 flags */
  enum rtl8152_flags {
  	RTL8152_UNPLUG = 0,
  	RTL8152_SET_RX_MODE,
  	WORK_ENABLE,
  	RTL8152_LINK_CHG,
  	SELECTIVE_SUSPEND,
  	PHY_RESET,
  	SCHEDULE_TASKLET,
  	GREEN_ETHERNET,
  	DELL_TB_RX_AGG_BUG,
  };
  
  /* Define these values to match your device */
  #define VENDOR_ID_REALTEK		0x0bda
  #define VENDOR_ID_MICROSOFT		0x045e
  #define VENDOR_ID_SAMSUNG		0x04e8
  #define VENDOR_ID_LENOVO		0x17ef
  #define VENDOR_ID_LINKSYS		0x13b1
  #define VENDOR_ID_NVIDIA		0x0955
  #define VENDOR_ID_TPLINK		0x2357
  
  #define MCU_TYPE_PLA			0x0100
  #define MCU_TYPE_USB			0x0000
  
  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;
  	__le16	tx_underrun;
  };
  
  struct rx_desc {
  	__le32 opts1;
  #define RX_LEN_MASK			0x7fff
  
  	__le32 opts2;
  #define RD_UDP_CS			BIT(23)
  #define RD_TCP_CS			BIT(22)
  #define RD_IPV6_CS			BIT(20)
  #define RD_IPV4_CS			BIT(19)
  
  	__le32 opts3;
  #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)
  
  	__le32 opts4;
  	__le32 opts5;
  	__le32 opts6;
  };
  
  struct tx_desc {
  	__le32 opts1;
  #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)
  #define GTTCPHO_SHIFT		18
  #define GTTCPHO_MAX		0x7fU
  #define TX_LEN_MAX		0x3ffffU
  
  	__le32 opts2;
  #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 */
  #define MSS_SHIFT		17
  #define MSS_MAX			0x7ffU
  #define TCPHO_SHIFT		17
  #define TCPHO_MAX		0x7ffU
  #define TX_VLAN_TAG		BIT(16)
  };
  
  struct r8152;
  
  struct rx_agg {
  	struct list_head list, info_list;
  	struct urb *urb;
  	struct r8152 *context;
  	struct page *page;
  	void *buffer;
  };
  
  struct tx_agg {
  	struct list_head list;
  	struct urb *urb;
  	struct r8152 *context;
  	void *buffer;
  	void *head;
  	u32 skb_num;
  	u32 skb_len;
  };
  
  struct r8152 {
  	unsigned long flags;
  	struct usb_device *udev;
  	struct napi_struct napi;
  	struct usb_interface *intf;
  	struct net_device *netdev;
  	struct urb *intr_urb;
  	struct tx_agg tx_info[RTL8152_MAX_TX];
  	struct list_head rx_info, rx_used;
  	struct list_head rx_done, tx_free;
  	struct sk_buff_head tx_queue, rx_queue;
  	spinlock_t rx_lock, tx_lock;
  	struct delayed_work schedule, hw_phy_work;
  	struct mii_if_info mii;
  	struct mutex control;	/* use for hw setting */
  #ifdef CONFIG_PM_SLEEP
  	struct notifier_block pm_notifier;
  #endif
  	struct tasklet_struct tx_tl;
  
  	struct rtl_ops {
  		void (*init)(struct r8152 *);
  		int (*enable)(struct r8152 *);
  		void (*disable)(struct r8152 *);
  		void (*up)(struct r8152 *);
  		void (*down)(struct r8152 *);
  		void (*unload)(struct r8152 *);
  		int (*eee_get)(struct r8152 *, struct ethtool_eee *);
  		int (*eee_set)(struct r8152 *, struct ethtool_eee *);
  		bool (*in_nway)(struct r8152 *);
  		void (*hw_phy_cfg)(struct r8152 *);
  		void (*autosuspend_en)(struct r8152 *tp, bool enable);
  	} rtl_ops;
  
  	struct ups_info {
  		u32 _10m_ckdiv:1;
  		u32 _250m_ckdiv:1;
  		u32 aldps:1;
  		u32 lite_mode:2;
  		u32 speed_duplex:4;
  		u32 eee:1;
  		u32 eee_lite:1;
  		u32 eee_ckdiv:1;
  		u32 eee_plloff_100:1;
  		u32 eee_plloff_giga:1;
  		u32 eee_cmod_lv:1;
  		u32 green:1;
  		u32 flow_control:1;
  		u32 ctap_short_off:1;
  	} ups_info;
  
  	atomic_t rx_count;
  
  	bool eee_en;
  	int intr_interval;
  	u32 saved_wolopts;
  	u32 msg_enable;
  	u32 tx_qlen;
  	u32 coalesce;
  	u32 advertising;
  	u32 rx_buf_sz;
  	u32 rx_copybreak;
  	u32 rx_pending;
  
  	u16 ocp_base;
  	u16 speed;
  	u16 eee_adv;
  	u8 *intr_buff;
  	u8 version;
  	u8 duplex;
  	u8 autoneg;
  };
  
  enum rtl_version {
  	RTL_VER_UNKNOWN = 0,
  	RTL_VER_01,
  	RTL_VER_02,
  	RTL_VER_03,
  	RTL_VER_04,
  	RTL_VER_05,
  	RTL_VER_06,
  	RTL_VER_07,
  	RTL_VER_08,
  	RTL_VER_09,
  	RTL_VER_MAX
  };
  
  enum tx_csum_stat {
  	TX_CSUM_SUCCESS = 0,
  	TX_CSUM_TSO,
  	TX_CSUM_NONE
  };
  
  #define RTL_ADVERTISED_10_HALF			BIT(0)
  #define RTL_ADVERTISED_10_FULL			BIT(1)
  #define RTL_ADVERTISED_100_HALF			BIT(2)
  #define RTL_ADVERTISED_100_FULL			BIT(3)
  #define RTL_ADVERTISED_1000_HALF		BIT(4)
  #define RTL_ADVERTISED_1000_FULL		BIT(5)
  
  /* 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;
  static unsigned int agg_buf_sz = 16384;
  
  #define RTL_LIMITED_TSO_SIZE	(agg_buf_sz - sizeof(struct tx_desc) - \
  				 VLAN_ETH_HLEN - ETH_FCS_LEN)
  
  static
  int get_registers(struct r8152 *tp, u16 value, u16 index, u16 size, void *data)
  {
  	int ret;
  	void *tmp;
  
  	tmp = kmalloc(size, GFP_KERNEL);
  	if (!tmp)
  		return -ENOMEM;
  
  	ret = usb_control_msg(tp->udev, usb_rcvctrlpipe(tp->udev, 0),
  			      RTL8152_REQ_GET_REGS, RTL8152_REQT_READ,
  			      value, index, tmp, size, 500);
  	if (ret < 0)
  		memset(data, 0xff, size);
  	else
  		memcpy(data, tmp, size);
  
  	kfree(tmp);
  
  	return ret;
  }
  
  static
  int set_registers(struct r8152 *tp, u16 value, u16 index, u16 size, void *data)
  {
  	int ret;
  	void *tmp;
  
  	tmp = kmemdup(data, size, GFP_KERNEL);
  	if (!tmp)
  		return -ENOMEM;
  
  	ret = usb_control_msg(tp->udev, usb_sndctrlpipe(tp->udev, 0),
  			      RTL8152_REQ_SET_REGS, RTL8152_REQT_WRITE,
  			      value, index, tmp, size, 500);
  
  	kfree(tmp);
  
  	return ret;
  }
  
  static void rtl_set_unplug(struct r8152 *tp)
  {
  	if (tp->udev->state == USB_STATE_NOTATTACHED) {
  		set_bit(RTL8152_UNPLUG, &tp->flags);
  		smp_mb__after_atomic();
  	}
  }
  
  static int generic_ocp_read(struct r8152 *tp, u16 index, u16 size,
  			    void *data, u16 type)
  {
  	u16 limit = 64;
  	int ret = 0;
  
  	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;
  		}
  	}
  
  	if (ret == -ENODEV)
  		rtl_set_unplug(tp);
  
  	return ret;
  }
  
  static int generic_ocp_write(struct r8152 *tp, u16 index, u16 byteen,
  			     u16 size, void *data, u16 type)
  {
  	int ret;
  	u16 byteen_start, byteen_end, byen;
  	u16 limit = 512;
  
  	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,
  						    type | BYTE_EN_DWORD,
  						    limit, data);
  				if (ret < 0)
  					goto error1;
  
  				index += limit;
  				data += limit;
  				size -= limit;
  			} else {
  				ret = set_registers(tp, index,
  						    type | BYTE_EN_DWORD,
  						    size, data);
  				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:
  	if (ret == -ENODEV)
  		rtl_set_unplug(tp);
  
  	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_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)
  {
  	__le32 data;
  
  	generic_ocp_read(tp, index, sizeof(data), &data, type);
  
  	return __le32_to_cpu(data);
  }
  
  static void ocp_write_dword(struct r8152 *tp, u16 type, u16 index, u32 data)
  {
  	__le32 tmp = __cpu_to_le32(data);
  
  	generic_ocp_write(tp, index, BYTE_EN_DWORD, sizeof(tmp), &tmp, type);
  }
  
  static u16 ocp_read_word(struct r8152 *tp, u16 type, u16 index)
  {
  	u32 data;
  	__le32 tmp;
  	u16 byen = BYTE_EN_WORD;
  	u8 shift = index & 2;
  
  	index &= ~3;
  	byen <<= shift;
  
  	generic_ocp_read(tp, index, sizeof(tmp), &tmp, type | byen);
  
  	data = __le32_to_cpu(tmp);
  	data >>= (shift * 8);
  	data &= 0xffff;
  
  	return (u16)data;
  }
  
  static void ocp_write_word(struct r8152 *tp, u16 type, u16 index, u32 data)
  {
  	u32 mask = 0xffff;
  	__le32 tmp;
  	u16 byen = BYTE_EN_WORD;
  	u8 shift = index & 2;
  
  	data &= mask;
  
  	if (index & 2) {
  		byen <<= shift;
  		mask <<= (shift * 8);
  		data <<= (shift * 8);
  		index &= ~3;
  	}
  
  	tmp = __cpu_to_le32(data);
  
  	generic_ocp_write(tp, index, byen, sizeof(tmp), &tmp, type);
  }
  
  static u8 ocp_read_byte(struct r8152 *tp, u16 type, u16 index)
  {
  	u32 data;
  	__le32 tmp;
  	u8 shift = index & 3;
  
  	index &= ~3;
  
  	generic_ocp_read(tp, index, sizeof(tmp), &tmp, type);
  
  	data = __le32_to_cpu(tmp);
  	data >>= (shift * 8);
  	data &= 0xff;
  
  	return (u8)data;
  }
  
  static void ocp_write_byte(struct r8152 *tp, u16 type, u16 index, u32 data)
  {
  	u32 mask = 0xff;
  	__le32 tmp;
  	u16 byen = BYTE_EN_BYTE;
  	u8 shift = index & 3;
  
  	data &= mask;
  
  	if (index & 3) {
  		byen <<= shift;
  		mask <<= (shift * 8);
  		data <<= (shift * 8);
  		index &= ~3;
  	}
  
  	tmp = __cpu_to_le32(data);
  
  	generic_ocp_write(tp, index, byen, sizeof(tmp), &tmp, type);
  }
  
  static u16 ocp_reg_read(struct r8152 *tp, u16 addr)
  {
  	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;
  	return ocp_read_word(tp, MCU_TYPE_PLA, ocp_index);
  }
  
  static void ocp_reg_write(struct r8152 *tp, u16 addr, u16 data)
  {
  	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;
  	ocp_write_word(tp, MCU_TYPE_PLA, ocp_index, data);
  }
  
  static inline void r8152_mdio_write(struct r8152 *tp, u32 reg_addr, u32 value)
  {
  	ocp_reg_write(tp, OCP_BASE_MII + reg_addr * 2, value);
  }
  
  static inline int r8152_mdio_read(struct r8152 *tp, u32 reg_addr)
  {
  	return ocp_reg_read(tp, OCP_BASE_MII + reg_addr * 2);
  }
  
  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);
  }
  
  static u16 sram_read(struct r8152 *tp, u16 addr)
  {
  	ocp_reg_write(tp, OCP_SRAM_ADDR, addr);
  	return ocp_reg_read(tp, OCP_SRAM_DATA);
  }
  
  static int read_mii_word(struct net_device *netdev, int phy_id, int reg)
  {
  	struct r8152 *tp = netdev_priv(netdev);
  	int ret;
  
  	if (test_bit(RTL8152_UNPLUG, &tp->flags))
  		return -ENODEV;
  
  	if (phy_id != R8152_PHY_ID)
  		return -EINVAL;
  
  	ret = r8152_mdio_read(tp, reg);
  
  	return ret;
  }
  
  static
  void write_mii_word(struct net_device *netdev, int phy_id, int reg, int val)
  {
  	struct r8152 *tp = netdev_priv(netdev);
  
  	if (test_bit(RTL8152_UNPLUG, &tp->flags))
  		return;
  
  	if (phy_id != R8152_PHY_ID)
  		return;
  
  	r8152_mdio_write(tp, reg, val);
  }
  
  static int
  r8152_submit_rx(struct r8152 *tp, struct rx_agg *agg, gfp_t mem_flags);
  
  static int rtl8152_set_mac_address(struct net_device *netdev, void *p)
  {
  	struct r8152 *tp = netdev_priv(netdev);
  	struct sockaddr *addr = p;
  	int ret = -EADDRNOTAVAIL;
  
  	if (!is_valid_ether_addr(addr->sa_data))
  		goto out1;
  
  	ret = usb_autopm_get_interface(tp->intf);
  	if (ret < 0)
  		goto out1;
  
  	mutex_lock(&tp->control);
  
  	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);
  
  	mutex_unlock(&tp->control);
  
  	usb_autopm_put_interface(tp->intf);
  out1:
  	return ret;
  }
  
  /* Devices containing proper chips can support a persistent
   * host system provided MAC address.
   * Examples of this are Dell TB15 and Dell WD15 docks
   */
  static int vendor_mac_passthru_addr_read(struct r8152 *tp, struct sockaddr *sa)
  {
  	acpi_status status;
  	struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
  	union acpi_object *obj;
  	int ret = -EINVAL;
  	u32 ocp_data;
  	unsigned char buf[6];
  
  	/* test for -AD variant of RTL8153 */
  	ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_MISC_0);
  	if ((ocp_data & AD_MASK) == 0x1000) {
  		/* test for MAC address pass-through bit */
  		ocp_data = ocp_read_byte(tp, MCU_TYPE_USB, EFUSE);
  		if ((ocp_data & PASS_THRU_MASK) != 1) {
  			netif_dbg(tp, probe, tp->netdev,
  				  "No efuse for RTL8153-AD MAC pass through\n");
  			return -ENODEV;
  		}
  	} else {
  		/* test for RTL8153-BND and RTL8153-BD */
  		ocp_data = ocp_read_byte(tp, MCU_TYPE_USB, USB_MISC_1);
  		if ((ocp_data & BND_MASK) == 0 && (ocp_data & BD_MASK) == 0) {
  			netif_dbg(tp, probe, tp->netdev,
  				  "Invalid variant for MAC pass through\n");
  			return -ENODEV;
  		}
  	}
  
  	/* returns _AUXMAC_#AABBCCDDEEFF# */
  	status = acpi_evaluate_object(NULL, "\\_SB.AMAC", NULL, &buffer);
  	obj = (union acpi_object *)buffer.pointer;
  	if (!ACPI_SUCCESS(status))
  		return -ENODEV;
  	if (obj->type != ACPI_TYPE_BUFFER || obj->string.length != 0x17) {
  		netif_warn(tp, probe, tp->netdev,
  			   "Invalid buffer for pass-thru MAC addr: (%d, %d)\n",
  			   obj->type, obj->string.length);
  		goto amacout;
  	}
  	if (strncmp(obj->string.pointer, "_AUXMAC_#", 9) != 0 ||
  	    strncmp(obj->string.pointer + 0x15, "#", 1) != 0) {
  		netif_warn(tp, probe, tp->netdev,
  			   "Invalid header when reading pass-thru MAC addr\n");
  		goto amacout;
  	}
  	ret = hex2bin(buf, obj->string.pointer + 9, 6);
  	if (!(ret == 0 && is_valid_ether_addr(buf))) {
  		netif_warn(tp, probe, tp->netdev,
  			   "Invalid MAC for pass-thru MAC addr: %d, %pM\n",
  			   ret, buf);
  		ret = -EINVAL;
  		goto amacout;
  	}
  	memcpy(sa->sa_data, buf, 6);
  	netif_info(tp, probe, tp->netdev,
  		   "Using pass-thru MAC addr %pM\n", sa->sa_data);
  
  amacout:
  	kfree(obj);
  	return ret;
  }
  
  static int determine_ethernet_addr(struct r8152 *tp, struct sockaddr *sa)
  {
  	struct net_device *dev = tp->netdev;
  	int ret;
  
  	sa->sa_family = dev->type;
  
  	if (tp->version == RTL_VER_01) {
  		ret = pla_ocp_read(tp, PLA_IDR, 8, sa->sa_data);
  	} else {
  		/* if device doesn't support MAC pass through this will
  		 * be expected to be non-zero
  		 */
  		ret = vendor_mac_passthru_addr_read(tp, sa);
  		if (ret < 0)
  			ret = pla_ocp_read(tp, PLA_BACKUP, 8, sa->sa_data);
  	}
  
  	if (ret < 0) {
  		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);
  		netif_info(tp, probe, dev, "Random ether addr %pM\n",
  			   sa->sa_data);
  		return 0;
  	}
  
  	return ret;
  }
  
  static int set_ethernet_addr(struct r8152 *tp)
  {
  	struct net_device *dev = tp->netdev;
  	struct sockaddr sa;
  	int ret;
  
  	ret = determine_ethernet_addr(tp, &sa);
  	if (ret < 0)
  		return ret;
  
  	if (tp->version == RTL_VER_01)
  		ether_addr_copy(dev->dev_addr, sa.sa_data);
  	else
  		ret = rtl8152_set_mac_address(dev, &sa);
  
  	return ret;
  }
  
  static void read_bulk_callback(struct urb *urb)
  {
  	struct net_device *netdev;
  	int status = urb->status;
  	struct rx_agg *agg;
  	struct r8152 *tp;
  	unsigned long flags;
  
  	agg = urb->context;
  	if (!agg)
  		return;
  
  	tp = agg->context;
  	if (!tp)
  		return;
  
  	if (test_bit(RTL8152_UNPLUG, &tp->flags))
  		return;
  
  	if (!test_bit(WORK_ENABLE, &tp->flags))
  		return;
  
  	netdev = tp->netdev;
  
  	/* When link down, the driver would cancel all bulks. */
  	/* This avoid the re-submitting bulk */
  	if (!netif_carrier_ok(netdev))
  		return;
  
  	usb_mark_last_busy(tp->udev);
  
  	switch (status) {
  	case 0:
  		if (urb->actual_length < ETH_ZLEN)
  			break;
  
  		spin_lock_irqsave(&tp->rx_lock, flags);
  		list_add_tail(&agg->list, &tp->rx_done);
  		spin_unlock_irqrestore(&tp->rx_lock, flags);
  		napi_schedule(&tp->napi);
  		return;
  	case -ESHUTDOWN:
  		rtl_set_unplug(tp);
  		netif_device_detach(tp->netdev);
  		return;
  	case -ENOENT:
  		return;	/* the urb is in unlink state */
  	case -ETIME:
  		if (net_ratelimit())
  			netdev_warn(netdev, "maybe reset is needed?\n");
  		break;
  	default:
  		if (net_ratelimit())
  			netdev_warn(netdev, "Rx status %d\n", status);
  		break;
  	}
  
  	r8152_submit_rx(tp, agg, GFP_ATOMIC);
  }
  
  static void write_bulk_callback(struct urb *urb)
  {
  	struct net_device_stats *stats;
  	struct net_device *netdev;
  	struct tx_agg *agg;
  	struct r8152 *tp;
  	unsigned long flags;
  	int status = urb->status;
  
  	agg = urb->context;
  	if (!agg)
  		return;
  
  	tp = agg->context;
  	if (!tp)
  		return;
  
  	netdev = tp->netdev;
  	stats = &netdev->stats;
  	if (status) {
  		if (net_ratelimit())
  			netdev_warn(netdev, "Tx status %d\n", status);
  		stats->tx_errors += agg->skb_num;
  	} else {
  		stats->tx_packets += agg->skb_num;
  		stats->tx_bytes += agg->skb_len;
  	}
  
  	spin_lock_irqsave(&tp->tx_lock, flags);
  	list_add_tail(&agg->list, &tp->tx_free);
  	spin_unlock_irqrestore(&tp->tx_lock, flags);
  
  	usb_autopm_put_interface_async(tp->intf);
  
  	if (!netif_carrier_ok(netdev))
  		return;
  
  	if (!test_bit(WORK_ENABLE, &tp->flags))
  		return;
  
  	if (test_bit(RTL8152_UNPLUG, &tp->flags))
  		return;
  
  	if (!skb_queue_empty(&tp->tx_queue))
  		tasklet_schedule(&tp->tx_tl);
  }
  
  static void intr_callback(struct urb *urb)
  {
  	struct r8152 *tp;
  	__le16 *d;
  	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);
  		/* fall through */
  	case -ENOENT:
  	case -EPROTO:
  		netif_info(tp, intr, tp->netdev,
  			   "Stop submitting intr, status %d\n", status);
  		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])) {
  		if (!netif_carrier_ok(tp->netdev)) {
  			set_bit(RTL8152_LINK_CHG, &tp->flags);
  			schedule_delayed_work(&tp->schedule, 0);
  		}
  	} else {
  		if (netif_carrier_ok(tp->netdev)) {
  			netif_stop_queue(tp->netdev);
  			set_bit(RTL8152_LINK_CHG, &tp->flags);
  			schedule_delayed_work(&tp->schedule, 0);
  		}
  	}
  
  resubmit:
  	res = usb_submit_urb(urb, GFP_ATOMIC);
  	if (res == -ENODEV) {
  		rtl_set_unplug(tp);
  		netif_device_detach(tp->netdev);
  	} else if (res) {
  		netif_err(tp, intr, tp->netdev,
  			  "can't resubmit intr, status %d\n", res);
  	}
  }
  
  static inline void *rx_agg_align(void *data)
  {
  	return (void *)ALIGN((uintptr_t)data, RX_ALIGN);
  }
  
  static inline void *tx_agg_align(void *data)
  {
  	return (void *)ALIGN((uintptr_t)data, TX_ALIGN);
  }
  
  static void free_rx_agg(struct r8152 *tp, struct rx_agg *agg)
  {
  	list_del(&agg->info_list);
  
  	usb_free_urb(agg->urb);
  	put_page(agg->page);
  	kfree(agg);
  
  	atomic_dec(&tp->rx_count);
  }
  
  static struct rx_agg *alloc_rx_agg(struct r8152 *tp, gfp_t mflags)
  {
  	struct net_device *netdev = tp->netdev;
  	int node = netdev->dev.parent ? dev_to_node(netdev->dev.parent) : -1;
  	unsigned int order = get_order(tp->rx_buf_sz);
  	struct rx_agg *rx_agg;
  	unsigned long flags;
  
  	rx_agg = kmalloc_node(sizeof(*rx_agg), mflags, node);
  	if (!rx_agg)
  		return NULL;
  
  	rx_agg->page = alloc_pages(mflags | __GFP_COMP, order);
  	if (!rx_agg->page)
  		goto free_rx;
  
  	rx_agg->buffer = page_address(rx_agg->page);
  
  	rx_agg->urb = usb_alloc_urb(0, mflags);
  	if (!rx_agg->urb)
  		goto free_buf;
  
  	rx_agg->context = tp;
  
  	INIT_LIST_HEAD(&rx_agg->list);
  	INIT_LIST_HEAD(&rx_agg->info_list);
  	spin_lock_irqsave(&tp->rx_lock, flags);
  	list_add_tail(&rx_agg->info_list, &tp->rx_info);
  	spin_unlock_irqrestore(&tp->rx_lock, flags);
  
  	atomic_inc(&tp->rx_count);
  
  	return rx_agg;
  
  free_buf:
  	__free_pages(rx_agg->page, order);
  free_rx:
  	kfree(rx_agg);
  	return NULL;
  }
  
  static void free_all_mem(struct r8152 *tp)
  {
  	struct rx_agg *agg, *agg_next;
  	unsigned long flags;
  	int i;
  
  	spin_lock_irqsave(&tp->rx_lock, flags);
  
  	list_for_each_entry_safe(agg, agg_next, &tp->rx_info, info_list)
  		free_rx_agg(tp, agg);
  
  	spin_unlock_irqrestore(&tp->rx_lock, flags);
  
  	WARN_ON(atomic_read(&tp->rx_count));
  
  	for (i = 0; i < RTL8152_MAX_TX; i++) {
  		usb_free_urb(tp->tx_info[i].urb);
  		tp->tx_info[i].urb = NULL;
  
  		kfree(tp->tx_info[i].buffer);
  		tp->tx_info[i].buffer = NULL;
  		tp->tx_info[i].head = NULL;
  	}
  
  	usb_free_urb(tp->intr_urb);
  	tp->intr_urb = NULL;
  
  	kfree(tp->intr_buff);
  	tp->intr_buff = NULL;
  }
  
  static int alloc_all_mem(struct r8152 *tp)
  {
  	struct net_device *netdev = tp->netdev;
  	struct usb_interface *intf = tp->intf;
  	struct usb_host_interface *alt = intf->cur_altsetting;
  	struct usb_host_endpoint *ep_intr = alt->endpoint + 2;
  	int node, i;
  
  	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->rx_info);
  	INIT_LIST_HEAD(&tp->tx_free);
  	INIT_LIST_HEAD(&tp->rx_done);
  	skb_queue_head_init(&tp->tx_queue);
  	skb_queue_head_init(&tp->rx_queue);
  	atomic_set(&tp->rx_count, 0);
  
  	for (i = 0; i < RTL8152_MAX_RX; i++) {
  		if (!alloc_rx_agg(tp, GFP_KERNEL))
  			goto err1;
  	}
  
  	for (i = 0; i < RTL8152_MAX_TX; i++) {
  		struct urb *urb;
  		u8 *buf;
  
  		buf = kmalloc_node(agg_buf_sz, GFP_KERNEL, node);
  		if (!buf)
  			goto err1;
  
  		if (buf != tx_agg_align(buf)) {
  			kfree(buf);
  			buf = kmalloc_node(agg_buf_sz + TX_ALIGN, GFP_KERNEL,
  					   node);
  			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);
  	}
  
  	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),
  			 tp->intr_buff, INTBUFSIZE, intr_callback,
  			 tp, tp->intr_interval);
  
  	return 0;
  
  err1:
  	free_all_mem(tp);
  	return -ENOMEM;
  }
  
  static struct tx_agg *r8152_get_tx_agg(struct r8152 *tp)
  {
  	struct tx_agg *agg = NULL;
  	unsigned long flags;
  
  	if (list_empty(&tp->tx_free))
  		return NULL;
  
  	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;
  }
  
  /* r8152_csum_workaround()
   * 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;
  
  		features &= ~(NETIF_F_SG | NETIF_F_IPV6_CSUM | NETIF_F_TSO6);
  		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);
  	}
  }
  
  /* msdn_giant_send_check()
   * 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;
  	int ret;
  
  	ret = skb_cow_head(skb, 0);
  	if (ret)
  		return ret;
  
  	ipv6h = ipv6_hdr(skb);
  	th = tcp_hdr(skb);
  
  	th->check = 0;
  	th->check = ~tcp_v6_check(0, &ipv6h->saddr, &ipv6h->daddr, 0);
  
  	return ret;
  }
  
  static inline void rtl_tx_vlan_tag(struct tx_desc *desc, struct sk_buff *skb)
  {
  	if (skb_vlan_tag_present(skb)) {
  		u32 opts2;
  
  		opts2 = TX_VLAN_TAG | swab16(skb_vlan_tag_get(skb));
  		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));
  }
  
  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) {
  		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;
  		}
  
  		switch (vlan_get_protocol(skb)) {
  		case htons(ETH_P_IP):
  			opts1 |= GTSENDV4;
  			break;
  
  		case htons(ETH_P_IPV6):
  			if (msdn_giant_send_check(skb)) {
  				ret = TX_CSUM_TSO;
  				goto unavailable;
  			}
  			opts1 |= GTSENDV6;
  			break;
  
  		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;
  
  		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;
  		}
  
  		switch (vlan_get_protocol(skb)) {
  		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;
  		}
  
  		if (ip_protocol == IPPROTO_TCP)
  			opts2 |= TCP_CS;
  		else if (ip_protocol == IPPROTO_UDP)
  			opts2 |= UDP_CS;
  		else
  			WARN_ON_ONCE(1);
  
  		opts2 |= transport_offset << TCPHO_SHIFT;
  	}
  
  	desc->opts2 = cpu_to_le32(opts2);
  	desc->opts1 = cpu_to_le32(opts1);
  
  unavailable:
  	return ret;
  }
  
  static int r8152_tx_agg_fill(struct r8152 *tp, struct tx_agg *agg)
  {
  	struct sk_buff_head skb_head, *tx_queue = &tp->tx_queue;
  	int remain, ret;
  	u8 *tx_data;
  
  	__skb_queue_head_init(&skb_head);
  	spin_lock(&tx_queue->lock);
  	skb_queue_splice_init(tx_queue, &skb_head);
  	spin_unlock(&tx_queue->lock);
  
  	tx_data = agg->head;
  	agg->skb_num = 0;
  	agg->skb_len = 0;
  	remain = agg_buf_sz;
  
  	while (remain >= ETH_ZLEN + sizeof(struct tx_desc)) {
  		struct tx_desc *tx_desc;
  		struct sk_buff *skb;
  		unsigned int len;
  		u32 offset;
  
  		skb = __skb_dequeue(&skb_head);
  		if (!skb)
  			break;
  
  		len = skb->len + sizeof(*tx_desc);
  
  		if (len > remain) {
  			__skb_queue_head(&skb_head, skb);
  			break;
  		}
  
  		tx_data = tx_agg_align(tx_data);
  		tx_desc = (struct tx_desc *)tx_data;
  
  		offset = (u32)skb_transport_offset(skb);
  
  		if (r8152_tx_csum(tp, tx_desc, skb, skb->len, offset)) {
  			r8152_csum_workaround(tp, skb, &skb_head);
  			continue;
  		}
  
  		rtl_tx_vlan_tag(tx_desc, skb);
  
  		tx_data += sizeof(*tx_desc);
  
  		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;
  		agg->skb_len += len;
  		agg->skb_num += skb_shinfo(skb)->gso_segs ?: 1;
  
  		dev_kfree_skb_any(skb);
  
  		remain = agg_buf_sz - (int)(tx_agg_align(tx_data) - agg->head);
  
  		if (test_bit(DELL_TB_RX_AGG_BUG, &tp->flags))
  			break;
  	}
  
  	if (!skb_queue_empty(&skb_head)) {
  		spin_lock(&tx_queue->lock);
  		skb_queue_splice(&skb_head, tx_queue);
  		spin_unlock(&tx_queue->lock);
  	}
  
  	netif_tx_lock(tp->netdev);
  
  	if (netif_queue_stopped(tp->netdev) &&
  	    skb_queue_len(&tp->tx_queue) < tp->tx_qlen)
  		netif_wake_queue(tp->netdev);
  
  	netif_tx_unlock(tp->netdev);
  
  	ret = usb_autopm_get_interface_async(tp->intf);
  	if (ret < 0)
  		goto out_tx_fill;
  
  	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);
  
  	ret = usb_submit_urb(agg->urb, GFP_ATOMIC);
  	if (ret < 0)
  		usb_autopm_put_interface_async(tp->intf);
  
  out_tx_fill:
  	return ret;
  }
  
  static u8 r8152_rx_csum(struct r8152 *tp, struct rx_desc *rx_desc)
  {
  	u8 checksum = CHECKSUM_NONE;
  	u32 opts2, opts3;
  
  	if (!(tp->netdev->features & NETIF_F_RXCSUM))
  		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_UNNECESSARY;
  		else if ((opts2 & RD_TCP_CS) && !(opts3 & TCPF))
  			checksum = CHECKSUM_UNNECESSARY;
  	} else if (opts2 & RD_IPV6_CS) {
  		if ((opts2 & RD_UDP_CS) && !(opts3 & UDPF))
  			checksum = CHECKSUM_UNNECESSARY;
  		else if ((opts2 & RD_TCP_CS) && !(opts3 & TCPF))
  			checksum = CHECKSUM_UNNECESSARY;
  	}
  
  return_result:
  	return checksum;
  }
  
  static inline bool rx_count_exceed(struct r8152 *tp)
  {
  	return atomic_read(&tp->rx_count) > RTL8152_MAX_RX;
  }
  
  static inline int agg_offset(struct rx_agg *agg, void *addr)
  {
  	return (int)(addr - agg->buffer);
  }
  
  static struct rx_agg *rtl_get_free_rx(struct r8152 *tp, gfp_t mflags)
  {
  	struct rx_agg *agg, *agg_next, *agg_free = NULL;
  	unsigned long flags;
  
  	spin_lock_irqsave(&tp->rx_lock, flags);
  
  	list_for_each_entry_safe(agg, agg_next, &tp->rx_used, list) {
  		if (page_count(agg->page) == 1) {
  			if (!agg_free) {
  				list_del_init(&agg->list);
  				agg_free = agg;
  				continue;
  			}
  			if (rx_count_exceed(tp)) {
  				list_del_init(&agg->list);
  				free_rx_agg(tp, agg);
  			}
  			break;
  		}
  	}
  
  	spin_unlock_irqrestore(&tp->rx_lock, flags);
  
  	if (!agg_free && atomic_read(&tp->rx_count) < tp->rx_pending)
  		agg_free = alloc_rx_agg(tp, mflags);
  
  	return agg_free;
  }
  
  static int rx_bottom(struct r8152 *tp, int budget)
  {
  	unsigned long flags;
  	struct list_head *cursor, *next, rx_queue;
  	int ret = 0, work_done = 0;
  	struct napi_struct *napi = &tp->napi;
  
  	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(napi, skb);
  			work_done++;
  			stats->rx_packets++;
  			stats->rx_bytes += pkt_len;
  		}
  	}
  
  	if (list_empty(&tp->rx_done))
  		goto out1;
  
  	INIT_LIST_HEAD(&rx_queue);
  	spin_lock_irqsave(&tp->rx_lock, flags);
  	list_splice_init(&tp->rx_done, &rx_queue);
  	spin_unlock_irqrestore(&tp->rx_lock, flags);
  
  	list_for_each_safe(cursor, next, &rx_queue) {
  		struct rx_desc *rx_desc;
  		struct rx_agg *agg, *agg_free;
  		int len_used = 0;
  		struct urb *urb;
  		u8 *rx_data;
  
  		list_del_init(cursor);
  
  		agg = list_entry(cursor, struct rx_agg, list);
  		urb = agg->urb;
  		if (urb->actual_length < ETH_ZLEN)
  			goto submit;
  
  		agg_free = rtl_get_free_rx(tp, GFP_ATOMIC);
  
  		rx_desc = agg->buffer;
  		rx_data = agg->buffer;
  		len_used += sizeof(struct rx_desc);
  
  		while (urb->actual_length > len_used) {
  			struct net_device *netdev = tp->netdev;
  			struct net_device_stats *stats = &netdev->stats;
  			unsigned int pkt_len, rx_frag_head_sz;
  			struct sk_buff *skb;
  
  			/* limite the skb numbers for rx_queue */
  			if (unlikely(skb_queue_len(&tp->rx_queue) >= 1000))
  				break;
  
  			pkt_len = le32_to_cpu(rx_desc->opts1) & RX_LEN_MASK;
  			if (pkt_len < ETH_ZLEN)
  				break;
  
  			len_used += pkt_len;
  			if (urb->actual_length < len_used)
  				break;
  
  			pkt_len -= ETH_FCS_LEN;
  			rx_data += sizeof(struct rx_desc);
  
  			if (!agg_free || tp->rx_copybreak > pkt_len)
  				rx_frag_head_sz = pkt_len;
  			else
  				rx_frag_head_sz = tp->rx_copybreak;
  
  			skb = napi_alloc_skb(napi, rx_frag_head_sz);
  			if (!skb) {
  				stats->rx_dropped++;
  				goto find_next_rx;
  			}
  
  			skb->ip_summed = r8152_rx_csum(tp, rx_desc);
  			memcpy(skb->data, rx_data, rx_frag_head_sz);
  			skb_put(skb, rx_frag_head_sz);
  			pkt_len -= rx_frag_head_sz;
  			rx_data += rx_frag_head_sz;
  			if (pkt_len) {
  				skb_add_rx_frag(skb, 0, agg->page,
  						agg_offset(agg, rx_data),
  						pkt_len,
  						SKB_DATA_ALIGN(pkt_len));
  				get_page(agg->page);
  			}
  
  			skb->protocol = eth_type_trans(skb, netdev);
  			rtl_rx_vlan_tag(rx_desc, skb);
  			if (work_done < budget) {
  				work_done++;
  				stats->rx_packets++;
  				stats->rx_bytes += skb->len;
  				napi_gro_receive(napi, skb);
  			} else {
  				__skb_queue_tail(&tp->rx_queue, skb);
  			}
  
  find_next_rx:
  			rx_data = rx_agg_align(rx_data + pkt_len + ETH_FCS_LEN);
  			rx_desc = (struct rx_desc *)rx_data;
  			len_used = agg_offset(agg, rx_data);
  			len_used += sizeof(struct rx_desc);
  		}
  
  		WARN_ON(!agg_free && page_count(agg->page) > 1);
  
  		if (agg_free) {
  			spin_lock_irqsave(&tp->rx_lock, flags);
  			if (page_count(agg->page) == 1) {
  				list_add(&agg_free->list, &tp->rx_used);
  			} else {
  				list_add_tail(&agg->list, &tp->rx_used);
  				agg = agg_free;
  				urb = agg->urb;
  			}
  			spin_unlock_irqrestore(&tp->rx_lock, flags);
  		}
  
  submit:
  		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);
  	}
  
  out1:
  	return work_done;
  }
  
  static void tx_bottom(struct r8152 *tp)
  {
  	int res;
  
  	do {
  		struct tx_agg *agg;
  
  		if (skb_queue_empty(&tp->tx_queue))
  			break;
  
  		agg = r8152_get_tx_agg(tp);
  		if (!agg)
  			break;
  
  		res = r8152_tx_agg_fill(tp, agg);
  		if (res) {
  			struct net_device *netdev = tp->netdev;
  
  			if (res == -ENODEV) {
  				rtl_set_unplug(tp);
  				netif_device_detach(netdev);
  			} else {
  				struct net_device_stats *stats = &netdev->stats;
  				unsigned long flags;
  
  				netif_warn(tp, tx_err, netdev,
  					   "failed tx_urb %d\n", res);
  				stats->tx_dropped += agg->skb_num;
  
  				spin_lock_irqsave(&tp->tx_lock, flags);
  				list_add_tail(&agg->list, &tp->tx_free);
  				spin_unlock_irqrestore(&tp->tx_lock, flags);
  			}
  		}
  	} while (res == 0);
  }
  
  static void bottom_half(unsigned long data)
  {
  	struct r8152 *tp;
  
  	tp = (struct r8152 *)data;
  
  	if (test_bit(RTL8152_UNPLUG, &tp->flags))
  		return;
  
  	if (!test_bit(WORK_ENABLE, &tp->flags))
  		return;
  
  	/* When link down, the driver would cancel all bulks. */
  	/* This avoid the re-submitting bulk */
  	if (!netif_carrier_ok(tp->netdev))
  		return;
  
  	clear_bit(SCHEDULE_TASKLET, &tp->flags);
  
  	tx_bottom(tp);
  }
  
  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);
  
  	if (work_done < budget) {
  		if (!napi_complete_done(napi, work_done))
  			goto out;
  		if (!list_empty(&tp->rx_done))
  			napi_schedule(napi);
  	}
  
  out:
  	return work_done;
  }
  
  static
  int r8152_submit_rx(struct r8152 *tp, struct rx_agg *agg, gfp_t mem_flags)
  {
  	int ret;
  
  	/* 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;
  
  	usb_fill_bulk_urb(agg->urb, tp->udev, usb_rcvbulkpipe(tp->udev, 1),
  			  agg->buffer, tp->rx_buf_sz,
  			  (usb_complete_t)read_bulk_callback, agg);
  
  	ret = usb_submit_urb(agg->urb, mem_flags);
  	if (ret == -ENODEV) {
  		rtl_set_unplug(tp);
  		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);
  
  		netif_err(tp, rx_err, tp->netdev,
  			  "Couldn't submit rx[%p], ret = %d\n", agg, ret);
  
  		napi_schedule(&tp->napi);
  	}
  
  	return ret;
  }
  
  static void rtl_drop_queued_tx(struct r8152 *tp)
  {
  	struct net_device_stats *stats = &tp->netdev->stats;
  	struct sk_buff_head skb_head, *tx_queue = &tp->tx_queue;
  	struct sk_buff *skb;
  
  	if (skb_queue_empty(tx_queue))
  		return;
  
  	__skb_queue_head_init(&skb_head);
  	spin_lock_bh(&tx_queue->lock);
  	skb_queue_splice_init(tx_queue, &skb_head);
  	spin_unlock_bh(&tx_queue->lock);
  
  	while ((skb = __skb_dequeue(&skb_head))) {
  		dev_kfree_skb(skb);
  		stats->tx_dropped++;
  	}
  }
  
  static void rtl8152_tx_timeout(struct net_device *netdev)
  {
  	struct r8152 *tp = netdev_priv(netdev);
  
  	netif_warn(tp, tx_err, netdev, "Tx timeout\n");
  
  	usb_queue_reset_device(tp->intf);
  }
  
  static void rtl8152_set_rx_mode(struct net_device *netdev)
  {
  	struct r8152 *tp = netdev_priv(netdev);
  
  	if (netif_carrier_ok(netdev)) {
  		set_bit(RTL8152_SET_RX_MODE, &tp->flags);
  		schedule_delayed_work(&tp->schedule, 0);
  	}
  }
  
  static void _rtl8152_set_rx_mode(struct net_device *netdev)
  {
  	struct r8152 *tp = netdev_priv(netdev);
  	u32 mc_filter[2];	/* Multicast hash filter */
  	__le32 tmp[2];
  	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;
  		mc_filter[1] = 0xffffffff;
  		mc_filter[0] = 0xffffffff;
  	} 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;
  		mc_filter[1] = 0xffffffff;
  		mc_filter[0] = 0xffffffff;
  	} else {
  		struct netdev_hw_addr *ha;
  
  		mc_filter[1] = 0;
  		mc_filter[0] = 0;
  		netdev_for_each_mc_addr(ha, netdev) {
  			int bit_nr = ether_crc(ETH_ALEN, ha->addr) >> 26;
  
  			mc_filter[bit_nr >> 5] |= 1 << (bit_nr & 31);
  			ocp_data |= RCR_AM;
  		}
  	}
  
  	tmp[0] = __cpu_to_le32(swab32(mc_filter[1]));
  	tmp[1] = __cpu_to_le32(swab32(mc_filter[0]));
  
  	pla_ocp_write(tp, PLA_MAR, BYTE_EN_DWORD, sizeof(tmp), tmp);
  	ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RCR, ocp_data);
  	netif_wake_queue(netdev);
  }
  
  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)
  		features &= ~(NETIF_F_CSUM_MASK | NETIF_F_GSO_MASK);
  	else if ((skb->len + sizeof(struct tx_desc)) > agg_buf_sz)
  		features &= ~NETIF_F_GSO_MASK;
  
  	return features;
  }
  
  static netdev_tx_t rtl8152_start_xmit(struct sk_buff *skb,
  				      struct net_device *netdev)
  {
  	struct r8152 *tp = netdev_priv(netdev);
  
  	skb_tx_timestamp(skb);
  
  	skb_queue_tail(&tp->tx_queue, skb);
  
  	if (!list_empty(&tp->tx_free)) {
  		if (test_bit(SELECTIVE_SUSPEND, &tp->flags)) {
  			set_bit(SCHEDULE_TASKLET, &tp->flags);
  			schedule_delayed_work(&tp->schedule, 0);
  		} else {
  			usb_mark_last_busy(tp->udev);
  			tasklet_schedule(&tp->tx_tl);
  		}
  	} else if (skb_queue_len(&tp->tx_queue) > tp->tx_qlen) {
  		netif_stop_queue(netdev);
  	}
  
  	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;
  		usleep_range(100, 400);
  	}
  }
  
  static void set_tx_qlen(struct r8152 *tp)
  {
  	struct net_device *netdev = tp->netdev;
  
  	tp->tx_qlen = agg_buf_sz / (netdev->mtu + VLAN_ETH_HLEN + ETH_FCS_LEN +
  				    sizeof(struct tx_desc));
  }
  
  static inline u8 rtl8152_get_speed(struct r8152 *tp)
  {
  	return ocp_read_byte(tp, MCU_TYPE_PLA, PLA_PHYSTATUS);
  }
  
  static void rtl_set_eee_plus(struct r8152 *tp)
  {
  	u32 ocp_data;
  	u8 speed;
  
  	speed = rtl8152_get_speed(tp);
  	if (speed & _10bps) {
  		ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_EEEP_CR);
  		ocp_data |= EEEP_CR_EEEP_TX;
  		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);
  		ocp_data &= ~EEEP_CR_EEEP_TX;
  		ocp_write_word(tp, MCU_TYPE_PLA, PLA_EEEP_CR, ocp_data);
  	}
  }
  
  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);
  }
  
  static int rtl_start_rx(struct r8152 *tp)
  {
  	struct rx_agg *agg, *agg_next;
  	struct list_head tmp_list;
  	unsigned long flags;
  	int ret = 0, i = 0;
  
  	INIT_LIST_HEAD(&tmp_list);
  
  	spin_lock_irqsave(&tp->rx_lock, flags);
  
  	INIT_LIST_HEAD(&tp->rx_done);
  	INIT_LIST_HEAD(&tp->rx_used);
  
  	list_splice_init(&tp->rx_info, &tmp_list);
  
  	spin_unlock_irqrestore(&tp->rx_lock, flags);
  
  	list_for_each_entry_safe(agg, agg_next, &tmp_list, info_list) {
  		INIT_LIST_HEAD(&agg->list);
  
  		/* Only RTL8152_MAX_RX rx_agg need to be submitted. */
  		if (++i > RTL8152_MAX_RX) {
  			spin_lock_irqsave(&tp->rx_lock, flags);
  			list_add_tail(&agg->list, &tp->rx_used);
  			spin_unlock_irqrestore(&tp->rx_lock, flags);
  		} else if (unlikely(ret < 0)) {
  			spin_lock_irqsave(&tp->rx_lock, flags);
  			list_add_tail(&agg->list, &tp->rx_done);
  			spin_unlock_irqrestore(&tp->rx_lock, flags);
  		} else {
  			ret = r8152_submit_rx(tp, agg, GFP_KERNEL);
  		}
  	}
  
  	spin_lock_irqsave(&tp->rx_lock, flags);
  	WARN_ON(!list_empty(&tp->rx_info));
  	list_splice(&tmp_list, &tp->rx_info);
  	spin_unlock_irqrestore(&tp->rx_lock, flags);
  
  	return ret;
  }
  
  static int rtl_stop_rx(struct r8152 *tp)
  {
  	struct rx_agg *agg, *agg_next;
  	struct list_head tmp_list;
  	unsigned long flags;
  
  	INIT_LIST_HEAD(&tmp_list);
  
  	/* The usb_kill_urb() couldn't be used in atomic.
  	 * Therefore, move the list of rx_info to a tmp one.
  	 * Then, list_for_each_entry_safe could be used without
  	 * spin lock.
  	 */
  
  	spin_lock_irqsave(&tp->rx_lock, flags);
  	list_splice_init(&tp->rx_info, &tmp_list);
  	spin_unlock_irqrestore(&tp->rx_lock, flags);
  
  	list_for_each_entry_safe(agg, agg_next, &tmp_list, info_list) {
  		/* At least RTL8152_MAX_RX rx_agg have the page_count being
  		 * equal to 1, so the other ones could be freed safely.
  		 */
  		if (page_count(agg->page) > 1)
  			free_rx_agg(tp, agg);
  		else
  			usb_kill_urb(agg->urb);
  	}
  
  	/* Move back the list of temp to the rx_info */
  	spin_lock_irqsave(&tp->rx_lock, flags);
  	WARN_ON(!list_empty(&tp->rx_info));
  	list_splice(&tmp_list, &tp->rx_info);
  	spin_unlock_irqrestore(&tp->rx_lock, flags);
  
  	while (!skb_queue_empty(&tp->rx_queue))
  		dev_kfree_skb(__skb_dequeue(&tp->rx_queue));
  
  	return 0;
  }
  
  static inline void r8153b_rx_agg_chg_indicate(struct r8152 *tp)
  {
  	ocp_write_byte(tp, MCU_TYPE_USB, USB_UPT_RXDMA_OWN,
  		       OWN_UPDATE | OWN_CLEAR);
  }
  
  static int rtl_enable(struct r8152 *tp)
  {
  	u32 ocp_data;
  
  	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);
  
  	switch (tp->version) {
  	case RTL_VER_08:
  	case RTL_VER_09:
  		r8153b_rx_agg_chg_indicate(tp);
  		break;
  	default:
  		break;
  	}
  
  	rxdy_gated_en(tp, false);
  
  	return 0;
  }
  
  static int rtl8152_enable(struct r8152 *tp)
  {
  	if (test_bit(RTL8152_UNPLUG, &tp->flags))
  		return -ENODEV;
  
  	set_tx_qlen(tp);
  	rtl_set_eee_plus(tp);
  
  	return rtl_enable(tp);
  }
  
  static void r8153_set_rx_early_timeout(struct r8152 *tp)
  {
  	u32 ocp_data = tp->coalesce / 8;
  
  	switch (tp->version) {
  	case RTL_VER_03:
  	case RTL_VER_04:
  	case RTL_VER_05:
  	case RTL_VER_06:
  		ocp_write_word(tp, MCU_TYPE_USB, USB_RX_EARLY_TIMEOUT,
  			       ocp_data);
  		break;
  
  	case RTL_VER_08:
  	case RTL_VER_09:
  		/* The RTL8153B uses USB_RX_EXTRA_AGGR_TMR for rx timeout
  		 * primarily. For USB_RX_EARLY_TIMEOUT, we fix it to 128ns.
  		 */
  		ocp_write_word(tp, MCU_TYPE_USB, USB_RX_EARLY_TIMEOUT,
  			       128 / 8);
  		ocp_write_word(tp, MCU_TYPE_USB, USB_RX_EXTRA_AGGR_TMR,
  			       ocp_data);
  		break;
  
  	default:
  		break;
  	}
  }
  
  static void r8153_set_rx_early_size(struct r8152 *tp)
  {
  	u32 ocp_data = tp->rx_buf_sz - rx_reserved_size(tp->netdev->mtu);
  
  	switch (tp->version) {
  	case RTL_VER_03:
  	case RTL_VER_04:
  	case RTL_VER_05:
  	case RTL_VER_06:
  		ocp_write_word(tp, MCU_TYPE_USB, USB_RX_EARLY_SIZE,
  			       ocp_data / 4);
  		break;
  	case RTL_VER_08:
  	case RTL_VER_09:
  		ocp_write_word(tp, MCU_TYPE_USB, USB_RX_EARLY_SIZE,
  			       ocp_data / 8);
  		break;
  	default:
  		WARN_ON_ONCE(1);
  		break;
  	}
  }
  
  static int rtl8153_enable(struct r8152 *tp)
  {
  	if (test_bit(RTL8152_UNPLUG, &tp->flags))
  		return -ENODEV;
  
  	set_tx_qlen(tp);
  	rtl_set_eee_plus(tp);
  	r8153_set_rx_early_timeout(tp);
  	r8153_set_rx_early_size(tp);
  
  	return rtl_enable(tp);
  }
  
  static void rtl_disable(struct r8152 *tp)
  {
  	u32 ocp_data;
  	int i;
  
  	if (test_bit(RTL8152_UNPLUG, &tp->flags)) {
  		rtl_drop_queued_tx(tp);
  		return;
  	}
  
  	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);
  
  	rtl_drop_queued_tx(tp);
  
  	for (i = 0; i < RTL8152_MAX_TX; i++)
  		usb_kill_urb(tp->tx_info[i].urb);
  
  	rxdy_gated_en(tp, true);
  
  	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;
  		usleep_range(1000, 2000);
  	}
  
  	for (i = 0; i < 1000; i++) {
  		if (ocp_read_word(tp, MCU_TYPE_PLA, PLA_TCR0) & TCR0_TX_EMPTY)
  			break;
  		usleep_range(1000, 2000);
  	}
  
  	rtl_stop_rx(tp);
  
  	rtl8152_nic_reset(tp);
  }
  
  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);
  }
  
  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);
  	int ret;
  
  	ret = usb_autopm_get_interface(tp->intf);
  	if (ret < 0)
  		goto out;
  
  	mutex_lock(&tp->control);
  
  	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);
  	}
  
  	mutex_unlock(&tp->control);
  
  	usb_autopm_put_interface(tp->intf);
  
  out:
  	return ret;
  }
  
  #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_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);
  	if (wolopts & WAKE_UCAST)
  		ocp_data |= UWF_EN;
  	if (wolopts & WAKE_BCAST)
  		ocp_data |= BWF_EN;
  	if (wolopts & WAKE_MCAST)
  		ocp_data |= MWF_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);
  }
  
  static void r8153_mac_clk_spd(struct r8152 *tp, bool enable)
  {
  	/* MAC clock speed down */
  	if (enable) {
  		ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL,
  			       ALDPS_SPDWN_RATIO);
  		ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL2,
  			       EEE_SPDWN_RATIO);
  		ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL3,
  			       PKT_AVAIL_SPDWN_EN | SUSPEND_SPDWN_EN |
  			       U1U2_SPDWN_EN | L1_SPDWN_EN);
  		ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL4,
  			       PWRSAVE_SPDWN_EN | RXDV_SPDWN_EN | TX10MIDLE_EN |
  			       TP100_SPDWN_EN | TP500_SPDWN_EN | EEE_SPDWN_EN |
  			       TP1000_SPDWN_EN);
  	} else {
  		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);
  	}
  }
  
  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 r8153b_u1u2en(struct r8152 *tp, bool enable)
  {
  	u32 ocp_data;
  
  	ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_LPM_CONFIG);
  	if (enable)
  		ocp_data |= LPM_U1U2_EN;
  	else
  		ocp_data &= ~LPM_U1U2_EN;
  
  	ocp_write_word(tp, MCU_TYPE_USB, USB_LPM_CONFIG, ocp_data);
  }
  
  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)
  		ocp_data |= U2P3_ENABLE;
  	else
  		ocp_data &= ~U2P3_ENABLE;
  	ocp_write_word(tp, MCU_TYPE_USB, USB_U2P3_CTRL, ocp_data);
  }
  
  static void r8153b_ups_flags(struct r8152 *tp)
  {
  	u32 ups_flags = 0;
  
  	if (tp->ups_info.green)
  		ups_flags |= UPS_FLAGS_EN_GREEN;
  
  	if (tp->ups_info.aldps)
  		ups_flags |= UPS_FLAGS_EN_ALDPS;
  
  	if (tp->ups_info.eee)
  		ups_flags |= UPS_FLAGS_EN_EEE;
  
  	if (tp->ups_info.flow_control)
  		ups_flags |= UPS_FLAGS_EN_FLOW_CTR;
  
  	if (tp->ups_info.eee_ckdiv)
  		ups_flags |= UPS_FLAGS_EN_EEE_CKDIV;
  
  	if (tp->ups_info.eee_cmod_lv)
  		ups_flags |= UPS_FLAGS_EEE_CMOD_LV_EN;
  
  	if (tp->ups_info._10m_ckdiv)
  		ups_flags |= UPS_FLAGS_EN_10M_CKDIV;
  
  	if (tp->ups_info.eee_plloff_100)
  		ups_flags |= UPS_FLAGS_EEE_PLLOFF_100;
  
  	if (tp->ups_info.eee_plloff_giga)
  		ups_flags |= UPS_FLAGS_EEE_PLLOFF_GIGA;
  
  	if (tp->ups_info._250m_ckdiv)
  		ups_flags |= UPS_FLAGS_250M_CKDIV;
  
  	if (tp->ups_info.ctap_short_off)
  		ups_flags |= UPS_FLAGS_CTAP_SHORT_DIS;
  
  	switch (tp->ups_info.speed_duplex) {
  	case NWAY_10M_HALF:
  		ups_flags |= ups_flags_speed(1);
  		break;
  	case NWAY_10M_FULL:
  		ups_flags |= ups_flags_speed(2);
  		break;
  	case NWAY_100M_HALF:
  		ups_flags |= ups_flags_speed(3);
  		break;
  	case NWAY_100M_FULL:
  		ups_flags |= ups_flags_speed(4);
  		break;
  	case NWAY_1000M_FULL:
  		ups_flags |= ups_flags_speed(5);
  		break;
  	case FORCE_10M_HALF:
  		ups_flags |= ups_flags_speed(6);
  		break;
  	case FORCE_10M_FULL:
  		ups_flags |= ups_flags_speed(7);
  		break;
  	case FORCE_100M_HALF:
  		ups_flags |= ups_flags_speed(8);
  		break;
  	case FORCE_100M_FULL:
  		ups_flags |= ups_flags_speed(9);
  		break;
  	default:
  		break;
  	}
  
  	ocp_write_dword(tp, MCU_TYPE_USB, USB_UPS_FLAGS, ups_flags);
  }
  
  static void r8153b_green_en(struct r8152 *tp, bool enable)
  {
  	u16 data;
  
  	if (enable) {
  		sram_write(tp, 0x8045, 0);	/* 10M abiq&ldvbias */
  		sram_write(tp, 0x804d, 0x1222);	/* 100M short abiq&ldvbias */
  		sram_write(tp, 0x805d, 0x0022);	/* 1000M short abiq&ldvbias */
  	} else {
  		sram_write(tp, 0x8045, 0x2444);	/* 10M abiq&ldvbias */
  		sram_write(tp, 0x804d, 0x2444);	/* 100M short abiq&ldvbias */
  		sram_write(tp, 0x805d, 0x2444);	/* 1000M short abiq&ldvbias */
  	}
  
  	data = sram_read(tp, SRAM_GREEN_CFG);
  	data |= GREEN_ETH_EN;
  	sram_write(tp, SRAM_GREEN_CFG, data);
  
  	tp->ups_info.green = enable;
  }
  
  static u16 r8153_phy_status(struct r8152 *tp, u16 desired)
  {
  	u16 data;
  	int i;
  
  	for (i = 0; i < 500; i++) {
  		data = ocp_reg_read(tp, OCP_PHY_STATUS);
  		data &= PHY_STAT_MASK;
  		if (desired) {
  			if (data == desired)
  				break;
  		} else if (data == PHY_STAT_LAN_ON || data == PHY_STAT_PWRDN ||
  			   data == PHY_STAT_EXT_INIT) {
  			break;
  		}
  
  		msleep(20);
  		if (test_bit(RTL8152_UNPLUG, &tp->flags))
  			break;
  	}
  
  	return data;
  }
  
  static void r8153b_ups_en(struct r8152 *tp, bool enable)
  {
  	u32 ocp_data = ocp_read_byte(tp, MCU_TYPE_USB, USB_POWER_CUT);
  
  	if (enable) {
  		r8153b_ups_flags(tp);
  
  		ocp_data |= UPS_EN | USP_PREWAKE | PHASE2_EN;
  		ocp_write_byte(tp, MCU_TYPE_USB, USB_POWER_CUT, ocp_data);
  
  		ocp_data = ocp_read_byte(tp, MCU_TYPE_USB, 0xcfff);
  		ocp_data |= BIT(0);
  		ocp_write_byte(tp, MCU_TYPE_USB, 0xcfff, ocp_data);
  	} else {
  		u16 data;
  
  		ocp_data &= ~(UPS_EN | USP_PREWAKE);
  		ocp_write_byte(tp, MCU_TYPE_USB, USB_POWER_CUT, ocp_data);
  
  		ocp_data = ocp_read_byte(tp, MCU_TYPE_USB, 0xcfff);
  		ocp_data &= ~BIT(0);
  		ocp_write_byte(tp, MCU_TYPE_USB, 0xcfff, 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);
  
  		data = r8153_phy_status(tp, 0);
  
  		switch (data) {
  		case PHY_STAT_PWRDN:
  		case PHY_STAT_EXT_INIT:
  			r8153b_green_en(tp,
  					test_bit(GREEN_ETHERNET, &tp->flags));
  
  			data = r8152_mdio_read(tp, MII_BMCR);
  			data &= ~BMCR_PDOWN;
  			data |= BMCR_RESET;
  			r8152_mdio_write(tp, MII_BMCR, data);
  
  			data = r8153_phy_status(tp, PHY_STAT_LAN_ON);
  			/* fall through */
  
  		default:
  			if (data != PHY_STAT_LAN_ON)
  				netif_warn(tp, link, tp->netdev,
  					   "PHY not ready");
  			break;
  		}
  	}
  }
  
  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);
  }
  
  static void r8153b_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;
  	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);
  }
  
  static void r8153_queue_wake(struct r8152 *tp, bool enable)
  {
  	u32 ocp_data;
  
  	ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_INDICATE_FALG);
  	if (enable)
  		ocp_data |= UPCOMING_RUNTIME_D3;
  	else
  		ocp_data &= ~UPCOMING_RUNTIME_D3;
  	ocp_write_byte(tp, MCU_TYPE_PLA, PLA_INDICATE_FALG, ocp_data);
  
  	ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_SUSPEND_FLAG);
  	ocp_data &= ~LINK_CHG_EVENT;
  	ocp_write_byte(tp, MCU_TYPE_PLA, PLA_SUSPEND_FLAG, ocp_data);
  
  	ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_EXTRA_STATUS);
  	ocp_data &= ~LINK_CHANGE_FLAG;
  	ocp_write_word(tp, MCU_TYPE_PLA, PLA_EXTRA_STATUS, ocp_data);
  }
  
  static bool rtl_can_wakeup(struct r8152 *tp)
  {
  	struct usb_device *udev = tp->udev;
  
  	return (udev->actconfig->desc.bmAttributes & USB_CONFIG_ATT_WAKEUP);
  }
  
  static void rtl_runtime_suspend_enable(struct r8152 *tp, bool enable)
  {
  	if (enable) {
  		u32 ocp_data;
  
  		__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 {
  		u32 ocp_data;
  
  		__rtl_set_wol(tp, tp->saved_wolopts);
  
  		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);
  	}
  }
  
  static void rtl8153_runtime_enable(struct r8152 *tp, bool enable)
  {
  	if (enable) {
  		r8153_u1u2en(tp, false);
  		r8153_u2p3en(tp, false);
  		r8153_mac_clk_spd(tp, true);
  		rtl_runtime_suspend_enable(tp, true);
  	} else {
  		rtl_runtime_suspend_enable(tp, false);
  		r8153_mac_clk_spd(tp, false);
  
  		switch (tp->version) {
  		case RTL_VER_03:
  		case RTL_VER_04:
  			break;
  		case RTL_VER_05:
  		case RTL_VER_06:
  		default:
  			r8153_u2p3en(tp, true);
  			break;
  		}
  
  		r8153_u1u2en(tp, true);
  	}
  }
  
  static void rtl8153b_runtime_enable(struct r8152 *tp, bool enable)
  {
  	if (enable) {
  		r8153_queue_wake(tp, true);
  		r8153b_u1u2en(tp, false);
  		r8153_u2p3en(tp, false);
  		rtl_runtime_suspend_enable(tp, true);
  		r8153b_ups_en(tp, true);
  	} else {
  		r8153b_ups_en(tp, false);
  		r8153_queue_wake(tp, false);
  		rtl_runtime_suspend_enable(tp, false);
  		r8153b_u1u2en(tp, true);
  	}
  }
  
  static void r8153_teredo_off(struct r8152 *tp)
  {
  	u32 ocp_data;
  
  	switch (tp->version) {
  	case RTL_VER_01:
  	case RTL_VER_02:
  	case RTL_VER_03:
  	case RTL_VER_04:
  	case RTL_VER_05:
  	case RTL_VER_06:
  	case RTL_VER_07:
  		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);
  		break;
  
  	case RTL_VER_08:
  	case RTL_VER_09:
  		/* The bit 0 ~ 7 are relative with teredo settings. They are
  		 * W1C (write 1 to clear), so set all 1 to disable it.
  		 */
  		ocp_write_byte(tp, MCU_TYPE_PLA, PLA_TEREDO_CFG, 0xff);
  		break;
  
  	default:
  		break;
  	}
  
  	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);
  }
  
  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);
  }
  
  static void r8152_aldps_en(struct r8152 *tp, bool enable)
  {
  	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);
  	}
  }
  
  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)
  {
  	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;
  	u32 ocp_data;
  
  	ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_EEE_CR);
  	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);
  	}
  
  	ocp_write_word(tp, MCU_TYPE_PLA, PLA_EEE_CR, ocp_data);
  	ocp_reg_write(tp, OCP_EEE_CONFIG1, config1);
  	ocp_reg_write(tp, OCP_EEE_CONFIG2, config2);
  	ocp_reg_write(tp, OCP_EEE_CONFIG3, config3);
  }
  
  static void r8153_eee_en(struct r8152 *tp, bool enable)
  {
  	u32 ocp_data;
  	u16 config;
  
  	ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_EEE_CR);
  	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;
  	}
  
  	ocp_write_word(tp, MCU_TYPE_PLA, PLA_EEE_CR, ocp_data);
  	ocp_reg_write(tp, OCP_EEE_CFG, config);
  
  	tp->ups_info.eee = enable;
  }
  
  static void rtl_eee_enable(struct r8152 *tp, bool enable)
  {
  	switch (tp->version) {
  	case RTL_VER_01:
  	case RTL_VER_02:
  	case RTL_VER_07:
  		if (enable) {
  			r8152_eee_en(tp, true);
  			r8152_mmd_write(tp, MDIO_MMD_AN, MDIO_AN_EEE_ADV,
  					tp->eee_adv);
  		} else {
  			r8152_eee_en(tp, false);
  			r8152_mmd_write(tp, MDIO_MMD_AN, MDIO_AN_EEE_ADV, 0);
  		}
  		break;
  	case RTL_VER_03:
  	case RTL_VER_04:
  	case RTL_VER_05:
  	case RTL_VER_06:
  	case RTL_VER_08:
  	case RTL_VER_09:
  		if (enable) {
  			r8153_eee_en(tp, true);
  			ocp_reg_write(tp, OCP_EEE_ADV, tp->eee_adv);
  		} else {
  			r8153_eee_en(tp, false);
  			ocp_reg_write(tp, OCP_EEE_ADV, 0);
  		}
  		break;
  	default:
  		break;
  	}
  }
  
  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);
  
  	tp->ups_info.flow_control = true;
  }
  
  static void rtl8152_disable(struct r8152 *tp)
  {
  	r8152_aldps_en(tp, false);
  	rtl_disable(tp);
  	r8152_aldps_en(tp, true);
  }
  
  static void r8152b_hw_phy_cfg(struct r8152 *tp)
  {
  	rtl_eee_enable(tp, tp->eee_en);
  	r8152_aldps_en(tp, true);
  	r8152b_enable_fc(tp);
  
  	set_bit(PHY_RESET, &tp->flags);
  }
  
  static void r8152b_exit_oob(struct r8152 *tp)
  {
  	u32 ocp_data;
  	int i;
  
  	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);
  
  	rxdy_gated_en(tp, true);
  	r8153_teredo_off(tp);
  	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;
  		usleep_range(1000, 2000);
  	}
  
  	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;
  		usleep_range(1000, 2000);
  	}
  
  	rtl8152_nic_reset(tp);
  
  	/* rx share fifo credit full threshold */
  	ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL0, RXFIFO_THR1_NORMAL);
  
  	if (tp->udev->speed == USB_SPEED_FULL ||
  	    tp->udev->speed == USB_SPEED_LOW) {
  		/* 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);
  	ocp_write_dword(tp, MCU_TYPE_USB, USB_RX_BUF_TH, RX_THR_HIGH);
  	ocp_write_dword(tp, MCU_TYPE_USB, USB_TX_DMA,
  			TEST_MODE_DISABLE | TX_SIZE_ADJUST1);
  
  	rtl_rx_vlan_en(tp, tp->netdev->features & NETIF_F_HW_VLAN_CTAG_RX);
  
  	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)
  {
  	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);
  
  	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);
  
  	rtl_disable(tp);
  
  	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;
  		usleep_range(1000, 2000);
  	}
  
  	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;
  		usleep_range(1000, 2000);
  	}
  
  	ocp_write_word(tp, MCU_TYPE_PLA, PLA_RMS, RTL8152_RMS);
  
  	rtl_rx_vlan_en(tp, true);
  
  	ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_BDC_CR);
  	ocp_data |= ALDPS_PROXY_MODE;
  	ocp_write_word(tp, MCU_TYPE_PLA, PLA_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);
  
  	rxdy_gated_en(tp, false);
  
  	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);
  }
  
  static int r8153_patch_request(struct r8152 *tp, bool request)
  {
  	u16 data;
  	int i;
  
  	data = ocp_reg_read(tp, OCP_PHY_PATCH_CMD);
  	if (request)
  		data |= PATCH_REQUEST;
  	else
  		data &= ~PATCH_REQUEST;
  	ocp_reg_write(tp, OCP_PHY_PATCH_CMD, data);
  
  	for (i = 0; request && i < 5000; i++) {
  		usleep_range(1000, 2000);
  		if (ocp_reg_read(tp, OCP_PHY_PATCH_STAT) & PATCH_READY)
  			break;
  	}
  
  	if (request && !(ocp_reg_read(tp, OCP_PHY_PATCH_STAT) & PATCH_READY)) {
  		netif_err(tp, drv, tp->netdev, "patch request fail\n");
  		r8153_patch_request(tp, false);
  		return -ETIME;
  	} else {
  		return 0;
  	}
  }
  
  static void r8153_aldps_en(struct r8152 *tp, bool enable)
  {
  	u16 data;
  
  	data = ocp_reg_read(tp, OCP_POWER_CFG);
  	if (enable) {
  		data |= EN_ALDPS;
  		ocp_reg_write(tp, OCP_POWER_CFG, data);
  	} else {
  		int i;
  
  		data &= ~EN_ALDPS;
  		ocp_reg_write(tp, OCP_POWER_CFG, data);
  		for (i = 0; i < 20; i++) {
  			usleep_range(1000, 2000);
  			if (ocp_read_word(tp, MCU_TYPE_PLA, 0xe000) & 0x0100)
  				break;
  		}
  	}
  
  	tp->ups_info.aldps = enable;
  }
  
  static void r8153_hw_phy_cfg(struct r8152 *tp)
  {
  	u32 ocp_data;
  	u16 data;
  
  	/* disable ALDPS before updating the PHY parameters */
  	r8153_aldps_en(tp, false);
  
  	/* disable EEE before updating the PHY parameters */
  	rtl_eee_enable(tp, false);
  
  	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);
  	sram_write(tp, SRAM_IMPEDANCE, 0x0b13);
  
  	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);
  
  	/* Enable LPF corner auto tune */
  	sram_write(tp, SRAM_LPF_CFG, 0xf70f);
  
  	/* Adjust 10M Amplitude */
  	sram_write(tp, SRAM_10M_AMP1, 0x00af);
  	sram_write(tp, SRAM_10M_AMP2, 0x0208);
  
  	if (tp->eee_en)
  		rtl_eee_enable(tp, true);
  
  	r8153_aldps_en(tp, true);
  	r8152b_enable_fc(tp);
  
  	switch (tp->version) {
  	case RTL_VER_03:
  	case RTL_VER_04:
  		break;
  	case RTL_VER_05:
  	case RTL_VER_06:
  	default:
  		r8153_u2p3en(tp, true);
  		break;
  	}
  
  	set_bit(PHY_RESET, &tp->flags);
  }
  
  static u32 r8152_efuse_read(struct r8152 *tp, u8 addr)
  {
  	u32 ocp_data;
  
  	ocp_write_word(tp, MCU_TYPE_PLA, PLA_EFUSE_CMD, EFUSE_READ_CMD | addr);
  	ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_EFUSE_CMD);
  	ocp_data = (ocp_data & EFUSE_DATA_BIT16) << 9;	/* data of bit16 */
  	ocp_data |= ocp_read_word(tp, MCU_TYPE_PLA, PLA_EFUSE_DATA);
  
  	return ocp_data;
  }
  
  static void r8153b_hw_phy_cfg(struct r8152 *tp)
  {
  	u32 ocp_data;
  	u16 data;
  
  	/* disable ALDPS before updating the PHY parameters */
  	r8153_aldps_en(tp, false);
  
  	/* disable EEE before updating the PHY parameters */
  	rtl_eee_enable(tp, false);
  
  	r8153b_green_en(tp, test_bit(GREEN_ETHERNET, &tp->flags));
  
  	data = sram_read(tp, SRAM_GREEN_CFG);
  	data |= R_TUNE_EN;
  	sram_write(tp, SRAM_GREEN_CFG, data);
  	data = ocp_reg_read(tp, OCP_NCTL_CFG);
  	data |= PGA_RETURN_EN;
  	ocp_reg_write(tp, OCP_NCTL_CFG, data);
  
  	/* ADC Bias Calibration:
  	 * read efuse offset 0x7d to get a 17-bit data. Remove the dummy/fake
  	 * bit (bit3) to rebuild the real 16-bit data. Write the data to the
  	 * ADC ioffset.
  	 */
  	ocp_data = r8152_efuse_read(tp, 0x7d);
  	data = (u16)(((ocp_data & 0x1fff0) >> 1) | (ocp_data & 0x7));
  	if (data != 0xffff)
  		ocp_reg_write(tp, OCP_ADC_IOFFSET, data);
  
  	/* ups mode tx-link-pulse timing adjustment:
  	 * rg_saw_cnt = OCP reg 0xC426 Bit[13:0]
  	 * swr_cnt_1ms_ini = 16000000 / rg_saw_cnt
  	 */
  	ocp_data = ocp_reg_read(tp, 0xc426);
  	ocp_data &= 0x3fff;
  	if (ocp_data) {
  		u32 swr_cnt_1ms_ini;
  
  		swr_cnt_1ms_ini = (16000000 / ocp_data) & SAW_CNT_1MS_MASK;
  		ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_UPS_CFG);
  		ocp_data = (ocp_data & ~SAW_CNT_1MS_MASK) | swr_cnt_1ms_ini;
  		ocp_write_word(tp, MCU_TYPE_USB, USB_UPS_CFG, ocp_data);
  	}
  
  	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);
  
  	/* Advnace EEE */
  	if (!r8153_patch_request(tp, true)) {
  		data = ocp_reg_read(tp, OCP_POWER_CFG);
  		data |= EEE_CLKDIV_EN;
  		ocp_reg_write(tp, OCP_POWER_CFG, data);
  		tp->ups_info.eee_ckdiv = true;
  
  		data = ocp_reg_read(tp, OCP_DOWN_SPEED);
  		data |= EN_EEE_CMODE | EN_EEE_1000 | EN_10M_CLKDIV;
  		ocp_reg_write(tp, OCP_DOWN_SPEED, data);
  		tp->ups_info.eee_cmod_lv = true;
  		tp->ups_info._10m_ckdiv = true;
  		tp->ups_info.eee_plloff_giga = true;
  
  		ocp_reg_write(tp, OCP_SYSCLK_CFG, 0);
  		ocp_reg_write(tp, OCP_SYSCLK_CFG, clk_div_expo(5));
  		tp->ups_info._250m_ckdiv = true;
  
  		r8153_patch_request(tp, false);
  	}
  
  	if (tp->eee_en)
  		rtl_eee_enable(tp, true);
  
  	r8153_aldps_en(tp, true);
  	r8152b_enable_fc(tp);
  
  	set_bit(PHY_RESET, &tp->flags);
  }
  
  static void r8153_first_init(struct r8152 *tp)
  {
  	u32 ocp_data;
  	int i;
  
  	r8153_mac_clk_spd(tp, false);
  	rxdy_gated_en(tp, true);
  	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);
  
  	rtl8152_nic_reset(tp);
  	rtl_reset_bmu(tp);
  
  	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;
  		usleep_range(1000, 2000);
  	}
  
  	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;
  		usleep_range(1000, 2000);
  	}
  
  	rtl_rx_vlan_en(tp, tp->netdev->features & NETIF_F_HW_VLAN_CTAG_RX);
  
  	ocp_data = tp->netdev->mtu + VLAN_ETH_HLEN + ETH_FCS_LEN;
  	ocp_write_word(tp, MCU_TYPE_PLA, PLA_RMS, ocp_data);
  	ocp_write_byte(tp, MCU_TYPE_PLA, PLA_MTPS, MTPS_JUMBO);
  
  	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);
  }
  
  static void r8153_enter_oob(struct r8152 *tp)
  {
  	u32 ocp_data;
  	int i;
  
  	r8153_mac_clk_spd(tp, true);
  
  	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);
  
  	rtl_disable(tp);
  	rtl_reset_bmu(tp);
  
  	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;
  		usleep_range(1000, 2000);
  	}
  
  	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;
  		usleep_range(1000, 2000);
  	}
  
  	ocp_data = tp->netdev->mtu + VLAN_ETH_HLEN + ETH_FCS_LEN;
  	ocp_write_word(tp, MCU_TYPE_PLA, PLA_RMS, ocp_data);
  
  	switch (tp->version) {
  	case RTL_VER_03:
  	case RTL_VER_04:
  	case RTL_VER_05:
  	case RTL_VER_06:
  		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);
  		break;
  
  	case RTL_VER_08:
  	case RTL_VER_09:
  		/* Clear teredo wake event. bit[15:8] is the teredo wakeup
  		 * type. Set it to zero. bits[7:0] are the W1C bits about
  		 * the events. Set them to all 1 to clear them.
  		 */
  		ocp_write_word(tp, MCU_TYPE_PLA, PLA_TEREDO_WAKE_BASE, 0x00ff);
  		break;
  
  	default:
  		break;
  	}
  
  	rtl_rx_vlan_en(tp, true);
  
  	ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_BDC_CR);
  	ocp_data |= ALDPS_PROXY_MODE;
  	ocp_write_word(tp, MCU_TYPE_PLA, PLA_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);
  
  	rxdy_gated_en(tp, false);
  
  	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);
  }
  
  static void rtl8153_disable(struct r8152 *tp)
  {
  	r8153_aldps_en(tp, false);
  	rtl_disable(tp);
  	rtl_reset_bmu(tp);
  	r8153_aldps_en(tp, true);
  }
  
  static int rtl8152_set_speed(struct r8152 *tp, u8 autoneg, u32 speed, u8 duplex,
  			     u32 advertising)
  {
  	u16 bmcr;
  	int ret = 0;
  
  	if (autoneg == AUTONEG_DISABLE) {
  		if (duplex != DUPLEX_HALF && duplex != DUPLEX_FULL)
  			return -EINVAL;
  
  		switch (speed) {
  		case SPEED_10:
  			bmcr = BMCR_SPEED10;
  			if (duplex == DUPLEX_FULL) {
  				bmcr |= BMCR_FULLDPLX;
  				tp->ups_info.speed_duplex = FORCE_10M_FULL;
  			} else {
  				tp->ups_info.speed_duplex = FORCE_10M_HALF;
  			}
  			break;
  		case SPEED_100:
  			bmcr = BMCR_SPEED100;
  			if (duplex == DUPLEX_FULL) {
  				bmcr |= BMCR_FULLDPLX;
  				tp->ups_info.speed_duplex = FORCE_100M_FULL;
  			} else {
  				tp->ups_info.speed_duplex = FORCE_100M_HALF;
  			}
  			break;
  		case SPEED_1000:
  			if (tp->mii.supports_gmii) {
  				bmcr = BMCR_SPEED1000 | BMCR_FULLDPLX;
  				tp->ups_info.speed_duplex = NWAY_1000M_FULL;
  				break;
  			}
  			/* fall through */
  		default:
  			ret = -EINVAL;
  			goto out;
  		}
  
  		if (duplex == DUPLEX_FULL)
  			tp->mii.full_duplex = 1;
  		else
  			tp->mii.full_duplex = 0;
  
  		tp->mii.force_media = 1;
  	} else {
  		u16 anar, tmp1;
  		u32 support;
  
  		support = RTL_ADVERTISED_10_HALF | RTL_ADVERTISED_10_FULL |
  			  RTL_ADVERTISED_100_HALF | RTL_ADVERTISED_100_FULL;
  
  		if (tp->mii.supports_gmii)
  			support |= RTL_ADVERTISED_1000_FULL;
  
  		if (!(advertising & support))
  			return -EINVAL;
  
  		anar = r8152_mdio_read(tp, MII_ADVERTISE);
  		tmp1 = anar & ~(ADVERTISE_10HALF | ADVERTISE_10FULL |
  				ADVERTISE_100HALF | ADVERTISE_100FULL);
  		if (advertising & RTL_ADVERTISED_10_HALF) {
  			tmp1 |= ADVERTISE_10HALF;
  			tp->ups_info.speed_duplex = NWAY_10M_HALF;
  		}
  		if (advertising & RTL_ADVERTISED_10_FULL) {
  			tmp1 |= ADVERTISE_10FULL;
  			tp->ups_info.speed_duplex = NWAY_10M_FULL;
  		}
  
  		if (advertising & RTL_ADVERTISED_100_HALF) {
  			tmp1 |= ADVERTISE_100HALF;
  			tp->ups_info.speed_duplex = NWAY_100M_HALF;
  		}
  		if (advertising & RTL_ADVERTISED_100_FULL) {
  			tmp1 |= ADVERTISE_100FULL;
  			tp->ups_info.speed_duplex = NWAY_100M_FULL;
  		}
  
  		if (anar != tmp1) {
  			r8152_mdio_write(tp, MII_ADVERTISE, tmp1);
  			tp->mii.advertising = tmp1;
  		}
  
  		if (tp->mii.supports_gmii) {
  			u16 gbcr;
  
  			gbcr = r8152_mdio_read(tp, MII_CTRL1000);
  			tmp1 = gbcr & ~(ADVERTISE_1000FULL |
  					ADVERTISE_1000HALF);
  
  			if (advertising & RTL_ADVERTISED_1000_FULL) {
  				tmp1 |= ADVERTISE_1000FULL;
  				tp->ups_info.speed_duplex = NWAY_1000M_FULL;
  			}
  
  			if (gbcr != tmp1)
  				r8152_mdio_write(tp, MII_CTRL1000, tmp1);
  		}
  
  		bmcr = BMCR_ANENABLE | BMCR_ANRESTART;
  
  		tp->mii.force_media = 0;
  	}
  
  	if (test_and_clear_bit(PHY_RESET, &tp->flags))
  		bmcr |= BMCR_RESET;
  
  	r8152_mdio_write(tp, MII_BMCR, bmcr);
  
  	if (bmcr & BMCR_RESET) {
  		int i;
  
  		for (i = 0; i < 50; i++) {
  			msleep(20);
  			if ((r8152_mdio_read(tp, MII_BMCR) & BMCR_RESET) == 0)
  				break;
  		}
  	}
  
  out:
  	return ret;
  }
  
  static void rtl8152_up(struct r8152 *tp)
  {
  	if (test_bit(RTL8152_UNPLUG, &tp->flags))
  		return;
  
  	r8152_aldps_en(tp, false);
  	r8152b_exit_oob(tp);
  	r8152_aldps_en(tp, true);
  }
  
  static void rtl8152_down(struct r8152 *tp)
  {
  	if (test_bit(RTL8152_UNPLUG, &tp->flags)) {
  		rtl_drop_queued_tx(tp);
  		return;
  	}
  
  	r8152_power_cut_en(tp, false);
  	r8152_aldps_en(tp, false);
  	r8152b_enter_oob(tp);
  	r8152_aldps_en(tp, true);
  }
  
  static void rtl8153_up(struct r8152 *tp)
  {
  	u32 ocp_data;
  
  	if (test_bit(RTL8152_UNPLUG, &tp->flags))
  		return;
  
  	r8153_u1u2en(tp, false);
  	r8153_u2p3en(tp, false);
  	r8153_aldps_en(tp, false);
  	r8153_first_init(tp);
  
  	ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_CONFIG6);
  	ocp_data |= LANWAKE_CLR_EN;
  	ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CONFIG6, ocp_data);
  
  	ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_LWAKE_CTRL_REG);
  	ocp_data &= ~LANWAKE_PIN;
  	ocp_write_byte(tp, MCU_TYPE_PLA, PLA_LWAKE_CTRL_REG, ocp_data);
  
  	ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_SSPHYLINK1);
  	ocp_data &= ~DELAY_PHY_PWR_CHG;
  	ocp_write_word(tp, MCU_TYPE_USB, USB_SSPHYLINK1, ocp_data);
  
  	r8153_aldps_en(tp, true);
  
  	switch (tp->version) {
  	case RTL_VER_03:
  	case RTL_VER_04:
  		break;
  	case RTL_VER_05:
  	case RTL_VER_06:
  	default:
  		r8153_u2p3en(tp, true);
  		break;
  	}
  
  	r8153_u1u2en(tp, true);
  }
  
  static void rtl8153_down(struct r8152 *tp)
  {
  	u32 ocp_data;
  
  	if (test_bit(RTL8152_UNPLUG, &tp->flags)) {
  		rtl_drop_queued_tx(tp);
  		return;
  	}
  
  	ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_CONFIG6);
  	ocp_data &= ~LANWAKE_CLR_EN;
  	ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CONFIG6, ocp_data);
  
  	r8153_u1u2en(tp, false);
  	r8153_u2p3en(tp, false);
  	r8153_power_cut_en(tp, false);
  	r8153_aldps_en(tp, false);
  	r8153_enter_oob(tp);
  	r8153_aldps_en(tp, true);
  }
  
  static void rtl8153b_up(struct r8152 *tp)
  {
  	u32 ocp_data;
  
  	if (test_bit(RTL8152_UNPLUG, &tp->flags))
  		return;
  
  	r8153b_u1u2en(tp, false);
  	r8153_u2p3en(tp, false);
  	r8153_aldps_en(tp, false);
  
  	r8153_first_init(tp);
  	ocp_write_dword(tp, MCU_TYPE_USB, USB_RX_BUF_TH, RX_THR_B);
  
  	ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL3);
  	ocp_data &= ~PLA_MCU_SPDWN_EN;
  	ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL3, ocp_data);
  
  	r8153_aldps_en(tp, true);
  	r8153b_u1u2en(tp, true);
  }
  
  static void rtl8153b_down(struct r8152 *tp)
  {
  	u32 ocp_data;
  
  	if (test_bit(RTL8152_UNPLUG, &tp->flags)) {
  		rtl_drop_queued_tx(tp);
  		return;
  	}
  
  	ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL3);
  	ocp_data |= PLA_MCU_SPDWN_EN;
  	ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL3, ocp_data);
  
  	r8153b_u1u2en(tp, false);
  	r8153_u2p3en(tp, false);
  	r8153b_power_cut_en(tp, false);
  	r8153_aldps_en(tp, false);
  	r8153_enter_oob(tp);
  	r8153_aldps_en(tp, true);
  }
  
  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;
  }
  
  static void set_carrier(struct r8152 *tp)
  {
  	struct net_device *netdev = tp->netdev;
  	struct napi_struct *napi = &tp->napi;
  	u8 speed;
  
  	speed = rtl8152_get_speed(tp);
  
  	if (speed & LINK_STATUS) {
  		if (!netif_carrier_ok(netdev)) {
  			tp->rtl_ops.enable(tp);
  			netif_stop_queue(netdev);
  			napi_disable(napi);
  			netif_carrier_on(netdev);
  			rtl_start_rx(tp);
  			clear_bit(RTL8152_SET_RX_MODE, &tp->flags);
  			_rtl8152_set_rx_mode(netdev);
  			napi_enable(&tp->napi);
  			netif_wake_queue(netdev);
  			netif_info(tp, link, netdev, "carrier on\n");
  		} else if (netif_queue_stopped(netdev) &&
  			   skb_queue_len(&tp->tx_queue) < tp->tx_qlen) {
  			netif_wake_queue(netdev);
  		}
  	} else {
  		if (netif_carrier_ok(netdev)) {
  			netif_carrier_off(netdev);
  			tasklet_disable(&tp->tx_tl);
  			napi_disable(napi);
  			tp->rtl_ops.disable(tp);
  			napi_enable(napi);
  			tasklet_enable(&tp->tx_tl);
  			netif_info(tp, link, netdev, "carrier off\n");
  		}
  	}
  }
  
  static void rtl_work_func_t(struct work_struct *work)
  {
  	struct r8152 *tp = container_of(work, struct r8152, schedule.work);
  
  	/* 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;
  
  	if (usb_autopm_get_interface(tp->intf) < 0)
  		return;
  
  	if (!test_bit(WORK_ENABLE, &tp->flags))
  		goto out1;
  
  	if (!mutex_trylock(&tp->control)) {
  		schedule_delayed_work(&tp->schedule, 0);
  		goto out1;
  	}
  
  	if (test_and_clear_bit(RTL8152_LINK_CHG, &tp->flags))
  		set_carrier(tp);
  
  	if (test_and_clear_bit(RTL8152_SET_RX_MODE, &tp->flags))
  		_rtl8152_set_rx_mode(tp->netdev);
  
  	/* don't schedule tasket before linking */
  	if (test_and_clear_bit(SCHEDULE_TASKLET, &tp->flags) &&
  	    netif_carrier_ok(tp->netdev))
  		tasklet_schedule(&tp->tx_tl);
  
  	mutex_unlock(&tp->control);
  
  out1:
  	usb_autopm_put_interface(tp->intf);
  }
  
  static void rtl_hw_phy_work_func_t(struct work_struct *work)
  {
  	struct r8152 *tp = container_of(work, struct r8152, hw_phy_work.work);
  
  	if (test_bit(RTL8152_UNPLUG, &tp->flags))
  		return;
  
  	if (usb_autopm_get_interface(tp->intf) < 0)
  		return;
  
  	mutex_lock(&tp->control);
  
  	tp->rtl_ops.hw_phy_cfg(tp);
  
  	rtl8152_set_speed(tp, tp->autoneg, tp->speed, tp->duplex,
  			  tp->advertising);
  
  	mutex_unlock(&tp->control);
  
  	usb_autopm_put_interface(tp->intf);
  }
  
  #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
  
  static int rtl8152_open(struct net_device *netdev)
  {
  	struct r8152 *tp = netdev_priv(netdev);
  	int res = 0;
  
  	res = alloc_all_mem(tp);
  	if (res)
  		goto out;
  
  	res = usb_autopm_get_interface(tp->intf);
  	if (res < 0)
  		goto out_free;
  
  	mutex_lock(&tp->control);
  
  	tp->rtl_ops.up(tp);
  
  	netif_carrier_off(netdev);
  	netif_start_queue(netdev);
  	set_bit(WORK_ENABLE, &tp->flags);
  
  	res = usb_submit_urb(tp->intr_urb, GFP_KERNEL);
  	if (res) {
  		if (res == -ENODEV)
  			netif_device_detach(tp->netdev);
  		netif_warn(tp, ifup, netdev, "intr_urb submit failed: %d\n",
  			   res);
  		goto out_unlock;
  	}
  	napi_enable(&tp->napi);
  	tasklet_enable(&tp->tx_tl);
  
  	mutex_unlock(&tp->control);
  
  	usb_autopm_put_interface(tp->intf);
  #ifdef CONFIG_PM_SLEEP
  	tp->pm_notifier.notifier_call = rtl_notifier;
  	register_pm_notifier(&tp->pm_notifier);
  #endif
  	return 0;
  
  out_unlock:
  	mutex_unlock(&tp->control);
  	usb_autopm_put_interface(tp->intf);
  out_free:
  	free_all_mem(tp);
  out:
  	return res;
  }
  
  static int rtl8152_close(struct net_device *netdev)
  {
  	struct r8152 *tp = netdev_priv(netdev);
  	int res = 0;
  
  #ifdef CONFIG_PM_SLEEP
  	unregister_pm_notifier(&tp->pm_notifier);
  #endif
  	tasklet_disable(&tp->tx_tl);
  	clear_bit(WORK_ENABLE, &tp->flags);
  	usb_kill_urb(tp->intr_urb);
  	cancel_delayed_work_sync(&tp->schedule);
  	napi_disable(&tp->napi);
  	netif_stop_queue(netdev);
  
  	res = usb_autopm_get_interface(tp->intf);
  	if (res < 0 || test_bit(RTL8152_UNPLUG, &tp->flags)) {
  		rtl_drop_queued_tx(tp);
  		rtl_stop_rx(tp);
  	} else {
  		mutex_lock(&tp->control);
  
  		tp->rtl_ops.down(tp);
  
  		mutex_unlock(&tp->control);
  
  		usb_autopm_put_interface(tp->intf);
  	}
  
  	free_all_mem(tp);
  
  	return res;
  }
  
  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);
  }
  
  static void r8152b_init(struct r8152 *tp)
  {
  	u32 ocp_data;
  	u16 data;
  
  	if (test_bit(RTL8152_UNPLUG, &tp->flags))
  		return;
  
  	data = r8152_mdio_read(tp, MII_BMCR);
  	if (data & BMCR_PDOWN) {
  		data &= ~BMCR_PDOWN;
  		r8152_mdio_write(tp, MII_BMCR, data);
  	}
  
  	r8152_aldps_en(tp, false);
  
  	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);
  	}
  
  	r8152_power_cut_en(tp, false);
  
  	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);
  
  	rtl_tally_reset(tp);
  
  	/* enable rx aggregation */
  	ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_USB_CTRL);
  	ocp_data &= ~(RX_AGG_DISABLE | RX_ZERO_EN);
  	ocp_write_word(tp, MCU_TYPE_USB, USB_USB_CTRL, ocp_data);
  }
  
  static void r8153_init(struct r8152 *tp)
  {
  	u32 ocp_data;
  	u16 data;
  	int i;
  
  	if (test_bit(RTL8152_UNPLUG, &tp->flags))
  		return;
  
  	r8153_u1u2en(tp, false);
  
  	for (i = 0; i < 500; i++) {
  		if (ocp_read_word(tp, MCU_TYPE_PLA, PLA_BOOT_CTRL) &
  		    AUTOLOAD_DONE)
  			break;
  
  		msleep(20);
  		if (test_bit(RTL8152_UNPLUG, &tp->flags))
  			break;
  	}
  
  	data = r8153_phy_status(tp, 0);
  
  	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);
  
  	data = r8152_mdio_read(tp, MII_BMCR);
  	if (data & BMCR_PDOWN) {
  		data &= ~BMCR_PDOWN;
  		r8152_mdio_write(tp, MII_BMCR, data);
  	}
  
  	data = r8153_phy_status(tp, PHY_STAT_LAN_ON);
  
  	r8153_u2p3en(tp, false);
  
  	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);
  
  		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) {
  		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);
  
  	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);
  
  	ocp_data = FIFO_EMPTY_1FB | ROK_EXIT_LPM;
  	if (tp->version == RTL_VER_04 && tp->udev->speed < USB_SPEED_SUPER)
  		ocp_data |= LPM_TIMER_500MS;
  	else
  		ocp_data |= LPM_TIMER_500US;
  	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);
  
  	ocp_write_word(tp, MCU_TYPE_USB, USB_CONNECT_TIMER, 0x0001);
  
  	r8153_power_cut_en(tp, false);
  	r8153_u1u2en(tp, true);
  	r8153_mac_clk_spd(tp, false);
  	usb_enable_lpm(tp->udev);
  
  	ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_CONFIG6);
  	ocp_data |= LANWAKE_CLR_EN;
  	ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CONFIG6, ocp_data);
  
  	ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_LWAKE_CTRL_REG);
  	ocp_data &= ~LANWAKE_PIN;
  	ocp_write_byte(tp, MCU_TYPE_PLA, PLA_LWAKE_CTRL_REG, ocp_data);
  
  	/* rx aggregation */
  	ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_USB_CTRL);
  	ocp_data &= ~(RX_AGG_DISABLE | RX_ZERO_EN);
  	if (test_bit(DELL_TB_RX_AGG_BUG, &tp->flags))
  		ocp_data |= RX_AGG_DISABLE;
  
  	ocp_write_word(tp, MCU_TYPE_USB, USB_USB_CTRL, ocp_data);
  
  	rtl_tally_reset(tp);
  
  	switch (tp->udev->speed) {
  	case USB_SPEED_SUPER:
  	case USB_SPEED_SUPER_PLUS:
  		tp->coalesce = COALESCE_SUPER;
  		break;
  	case USB_SPEED_HIGH:
  		tp->coalesce = COALESCE_HIGH;
  		break;
  	default:
  		tp->coalesce = COALESCE_SLOW;
  		break;
  	}
  }
  
  static void r8153b_init(struct r8152 *tp)
  {
  	u32 ocp_data;
  	u16 data;
  	int i;
  
  	if (test_bit(RTL8152_UNPLUG, &tp->flags))
  		return;
  
  	r8153b_u1u2en(tp, false);
  
  	for (i = 0; i < 500; i++) {
  		if (ocp_read_word(tp, MCU_TYPE_PLA, PLA_BOOT_CTRL) &
  		    AUTOLOAD_DONE)
  			break;
  
  		msleep(20);
  		if (test_bit(RTL8152_UNPLUG, &tp->flags))
  			break;
  	}
  
  	data = r8153_phy_status(tp, 0);
  
  	data = r8152_mdio_read(tp, MII_BMCR);
  	if (data & BMCR_PDOWN) {
  		data &= ~BMCR_PDOWN;
  		r8152_mdio_write(tp, MII_BMCR, data);
  	}
  
  	data = r8153_phy_status(tp, PHY_STAT_LAN_ON);
  
  	r8153_u2p3en(tp, false);
  
  	/* MSC timer = 0xfff * 8ms = 32760 ms */
  	ocp_write_word(tp, MCU_TYPE_USB, USB_MSC_TIMER, 0x0fff);
  
  	/* U1/U2/L1 idle timer. 500 us */
  	ocp_write_word(tp, MCU_TYPE_USB, USB_U1U2_TIMER, 500);
  
  	r8153b_power_cut_en(tp, false);
  	r8153b_ups_en(tp, false);
  	r8153_queue_wake(tp, false);
  	rtl_runtime_suspend_enable(tp, false);
  	r8153b_u1u2en(tp, true);
  	usb_enable_lpm(tp->udev);
  
  	/* MAC clock speed down */
  	ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL2);
  	ocp_data |= MAC_CLK_SPDWN_EN;
  	ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL2, ocp_data);
  
  	ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL3);
  	ocp_data &= ~PLA_MCU_SPDWN_EN;
  	ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL3, ocp_data);
  
  	if (tp->version == RTL_VER_09) {
  		/* Disable Test IO for 32QFN */
  		if (ocp_read_byte(tp, MCU_TYPE_PLA, 0xdc00) & BIT(5)) {
  			ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_PHY_PWR);
  			ocp_data |= TEST_IO_OFF;
  			ocp_write_word(tp, MCU_TYPE_PLA, PLA_PHY_PWR, ocp_data);
  		}
  	}
  
  	set_bit(GREEN_ETHERNET, &tp->flags);
  
  	/* rx aggregation */
  	ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_USB_CTRL);
  	ocp_data &= ~(RX_AGG_DISABLE | RX_ZERO_EN);
  	ocp_write_word(tp, MCU_TYPE_USB, USB_USB_CTRL, ocp_data);
  
  	rtl_tally_reset(tp);
  
  	tp->coalesce = 15000;	/* 15 us */
  }
  
  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;
  
  	netif_stop_queue(netdev);
  	tasklet_disable(&tp->tx_tl);
  	clear_bit(WORK_ENABLE, &tp->flags);
  	usb_kill_urb(tp->intr_urb);
  	cancel_delayed_work_sync(&tp->schedule);
  	napi_disable(&tp->napi);
  	if (netif_carrier_ok(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;
  	struct sockaddr sa;
  
  	if (!tp)
  		return 0;
  
  	/* reset the MAC adddress in case of policy change */
  	if (determine_ethernet_addr(tp, &sa) >= 0) {
  		rtnl_lock();
  		dev_set_mac_address (tp->netdev, &sa, NULL);
  		rtnl_unlock();
  	}
  
  	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);
  		rtl_start_rx(tp);
  		_rtl8152_set_rx_mode(netdev);
  		mutex_unlock(&tp->control);
  	}
  
  	napi_enable(&tp->napi);
  	tasklet_enable(&tp->tx_tl);
  	netif_wake_queue(netdev);
  	usb_submit_urb(tp->intr_urb, GFP_KERNEL);
  
  	if (!list_empty(&tp->rx_done))
  		napi_schedule(&tp->napi);
  
  	return 0;
  }
  
  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 if (!skb_queue_empty(&tp->tx_queue))
  		return true;
  	else
  		return false;
  }
  
  static int rtl8152_runtime_resume(struct r8152 *tp)
  {
  	struct net_device *netdev = tp->netdev;
  
  	if (netif_running(netdev) && netdev->flags & IFF_UP) {
  		struct napi_struct *napi = &tp->napi;
  
  		tp->rtl_ops.autosuspend_en(tp, false);
  		napi_disable(napi);
  		set_bit(WORK_ENABLE, &tp->flags);
  
  		if (netif_carrier_ok(netdev)) {
  			if (rtl8152_get_speed(tp) & LINK_STATUS) {
  				rtl_start_rx(tp);
  			} else {
  				netif_carrier_off(netdev);
  				tp->rtl_ops.disable(tp);
  				netif_info(tp, link, netdev, "linking down\n");
  			}
  		}
  
  		napi_enable(napi);
  		clear_bit(SELECTIVE_SUSPEND, &tp->flags);
  		smp_mb__after_atomic();
  
  		if (!list_empty(&tp->rx_done))
  			napi_schedule(&tp->napi);
  
  		usb_submit_urb(tp->intr_urb, GFP_NOIO);
  	} else {
  		if (netdev->flags & IFF_UP)
  			tp->rtl_ops.autosuspend_en(tp, false);
  
  		clear_bit(SELECTIVE_SUSPEND, &tp->flags);
  	}
  
  	return 0;
  }
  
  static int rtl8152_system_resume(struct r8152 *tp)
  {
  	struct net_device *netdev = tp->netdev;
  
  	netif_device_attach(netdev);
  
  	if (netif_running(netdev) && (netdev->flags & IFF_UP)) {
  		tp->rtl_ops.up(tp);
  		netif_carrier_off(netdev);
  		set_bit(WORK_ENABLE, &tp->flags);
  		usb_submit_urb(tp->intr_urb, GFP_NOIO);
  	}
  
  	return 0;
  }
  
  static int rtl8152_runtime_suspend(struct r8152 *tp)
  {
  	struct net_device *netdev = tp->netdev;
  	int ret = 0;
  
  	set_bit(SELECTIVE_SUSPEND, &tp->flags);
  	smp_mb__after_atomic();
  
  	if (netif_running(netdev) && test_bit(WORK_ENABLE, &tp->flags)) {
  		u32 rcr = 0;
  
  		if (netif_carrier_ok(netdev)) {
  			u32 ocp_data;
  
  			rcr = ocp_read_dword(tp, MCU_TYPE_PLA, PLA_RCR);
  			ocp_data = rcr & ~RCR_ACPT_ALL;
  			ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RCR, ocp_data);
  			rxdy_gated_en(tp, true);
  			ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA,
  						 PLA_OOB_CTRL);
  			if (!(ocp_data & RXFIFO_EMPTY)) {
  				rxdy_gated_en(tp, false);
  				ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RCR, rcr);
  				clear_bit(SELECTIVE_SUSPEND, &tp->flags);
  				smp_mb__after_atomic();
  				ret = -EBUSY;
  				goto out1;
  			}
  		}
  
  		clear_bit(WORK_ENABLE, &tp->flags);
  		usb_kill_urb(tp->intr_urb);
  
  		tp->rtl_ops.autosuspend_en(tp, true);
  
  		if (netif_carrier_ok(netdev)) {
  			struct napi_struct *napi = &tp->napi;
  
  			napi_disable(napi);
  			rtl_stop_rx(tp);
  			rxdy_gated_en(tp, false);
  			ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RCR, rcr);
  			napi_enable(napi);
  		}
  
  		if (delay_autosuspend(tp)) {
  			rtl8152_runtime_resume(tp);
  			ret = -EBUSY;
  		}
  	}
  
  out1:
  	return ret;
  }
  
  static int rtl8152_system_suspend(struct r8152 *tp)
  {
  	struct net_device *netdev = tp->netdev;
  
  	netif_device_detach(netdev);
  
  	if (netif_running(netdev) && test_bit(WORK_ENABLE, &tp->flags)) {
  		struct napi_struct *napi = &tp->napi;
  
  		clear_bit(WORK_ENABLE, &tp->flags);
  		usb_kill_urb(tp->intr_urb);
  		tasklet_disable(&tp->tx_tl);
  		napi_disable(napi);
  		cancel_delayed_work_sync(&tp->schedule);
  		tp->rtl_ops.down(tp);
  		napi_enable(napi);
  		tasklet_enable(&tp->tx_tl);
  	}
  
  	return 0;
  }
  
  static int rtl8152_suspend(struct usb_interface *intf, pm_message_t message)
  {
  	struct r8152 *tp = usb_get_intfdata(intf);
  	int ret;
  
  	mutex_lock(&tp->control);
  
  	if (PMSG_IS_AUTO(message))
  		ret = rtl8152_runtime_suspend(tp);
  	else
  		ret = rtl8152_system_suspend(tp);
  
  	mutex_unlock(&tp->control);
  
  	return ret;
  }
  
  static int rtl8152_resume(struct usb_interface *intf)
  {
  	struct r8152 *tp = usb_get_intfdata(intf);
  	int ret;
  
  	mutex_lock(&tp->control);
  
  	if (test_bit(SELECTIVE_SUSPEND, &tp->flags))
  		ret = rtl8152_runtime_resume(tp);
  	else
  		ret = rtl8152_system_resume(tp);
  
  	mutex_unlock(&tp->control);
  
  	return ret;
  }
  
  static int rtl8152_reset_resume(struct usb_interface *intf)
  {
  	struct r8152 *tp = usb_get_intfdata(intf);
  
  	clear_bit(SELECTIVE_SUSPEND, &tp->flags);
  	tp->rtl_ops.init(tp);
  	queue_delayed_work(system_long_wq, &tp->hw_phy_work, 0);
  	set_ethernet_addr(tp);
  	return rtl8152_resume(intf);
  }
  
  static void rtl8152_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
  {
  	struct r8152 *tp = netdev_priv(dev);
  
  	if (usb_autopm_get_interface(tp->intf) < 0)
  		return;
  
  	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);
  	}
  
  	usb_autopm_put_interface(tp->intf);
  }
  
  static int rtl8152_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
  {
  	struct r8152 *tp = netdev_priv(dev);
  	int ret;
  
  	if (!rtl_can_wakeup(tp))
  		return -EOPNOTSUPP;
  
  	if (wol->wolopts & ~WAKE_ANY)
  		return -EINVAL;
  
  	ret = usb_autopm_get_interface(tp->intf);
  	if (ret < 0)
  		goto out_set_wol;
  
  	mutex_lock(&tp->control);
  
  	__rtl_set_wol(tp, wol->wolopts);
  	tp->saved_wolopts = wol->wolopts & WAKE_ANY;
  
  	mutex_unlock(&tp->control);
  
  	usb_autopm_put_interface(tp->intf);
  
  out_set_wol:
  	return ret;
  }
  
  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;
  }
  
  static void rtl8152_get_drvinfo(struct net_device *netdev,
  				struct ethtool_drvinfo *info)
  {
  	struct r8152 *tp = netdev_priv(netdev);
  
  	strlcpy(info->driver, MODULENAME, sizeof(info->driver));
  	strlcpy(info->version, DRIVER_VERSION, sizeof(info->version));
  	usb_make_path(tp->udev, info->bus_info, sizeof(info->bus_info));
  }
  
  static
  int rtl8152_get_link_ksettings(struct net_device *netdev,
  			       struct ethtool_link_ksettings *cmd)
  {
  	struct r8152 *tp = netdev_priv(netdev);
  	int ret;
  
  	if (!tp->mii.mdio_read)
  		return -EOPNOTSUPP;
  
  	ret = usb_autopm_get_interface(tp->intf);
  	if (ret < 0)
  		goto out;
  
  	mutex_lock(&tp->control);
  
  	mii_ethtool_get_link_ksettings(&tp->mii, cmd);
  
  	mutex_unlock(&tp->control);
  
  	usb_autopm_put_interface(tp->intf);
  
  out:
  	return ret;
  }
  
  static int rtl8152_set_link_ksettings(struct net_device *dev,
  				      const struct ethtool_link_ksettings *cmd)
  {
  	struct r8152 *tp = netdev_priv(dev);
  	u32 advertising = 0;
  	int ret;
  
  	ret = usb_autopm_get_interface(tp->intf);
  	if (ret < 0)
  		goto out;
  
  	if (test_bit(ETHTOOL_LINK_MODE_10baseT_Half_BIT,
  		     cmd->link_modes.advertising))
  		advertising |= RTL_ADVERTISED_10_HALF;
  
  	if (test_bit(ETHTOOL_LINK_MODE_10baseT_Full_BIT,
  		     cmd->link_modes.advertising))
  		advertising |= RTL_ADVERTISED_10_FULL;
  
  	if (test_bit(ETHTOOL_LINK_MODE_100baseT_Half_BIT,
  		     cmd->link_modes.advertising))
  		advertising |= RTL_ADVERTISED_100_HALF;
  
  	if (test_bit(ETHTOOL_LINK_MODE_100baseT_Full_BIT,
  		     cmd->link_modes.advertising))
  		advertising |= RTL_ADVERTISED_100_FULL;
  
  	if (test_bit(ETHTOOL_LINK_MODE_1000baseT_Half_BIT,
  		     cmd->link_modes.advertising))
  		advertising |= RTL_ADVERTISED_1000_HALF;
  
  	if (test_bit(ETHTOOL_LINK_MODE_1000baseT_Full_BIT,
  		     cmd->link_modes.advertising))
  		advertising |= RTL_ADVERTISED_1000_FULL;
  
  	mutex_lock(&tp->control);
  
  	ret = rtl8152_set_speed(tp, cmd->base.autoneg, cmd->base.speed,
  				cmd->base.duplex, advertising);
  	if (!ret) {
  		tp->autoneg = cmd->base.autoneg;
  		tp->speed = cmd->base.speed;
  		tp->duplex = cmd->base.duplex;
  		tp->advertising = advertising;
  	}
  
  	mutex_unlock(&tp->control);
  
  	usb_autopm_put_interface(tp->intf);
  
  out:
  	return ret;
  }
  
  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;
  
  	if (usb_autopm_get_interface(tp->intf) < 0)
  		return;
  
  	generic_ocp_read(tp, PLA_TALLYCNT, sizeof(tally), &tally, MCU_TYPE_PLA);
  
  	usb_autopm_put_interface(tp->intf);
  
  	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);
  	data[12] = le16_to_cpu(tally.tx_underrun);
  }
  
  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;
  	}
  }
  
  static int r8152_get_eee(struct r8152 *tp, struct ethtool_eee *eee)
  {
  	u32 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);
  
  	eee->eee_enabled = tp->eee_en;
  	eee->eee_active = !!(supported & adv & lp);
  	eee->supported = supported;
  	eee->advertised = tp->eee_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);
  
  	tp->eee_en = eee->eee_enabled;
  	tp->eee_adv = val;
  
  	rtl_eee_enable(tp, tp->eee_en);
  
  	return 0;
  }
  
  static int r8153_get_eee(struct r8152 *tp, struct ethtool_eee *eee)
  {
  	u32 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);
  
  	eee->eee_enabled = tp->eee_en;
  	eee->eee_active = !!(supported & adv & lp);
  	eee->supported = supported;
  	eee->advertised = tp->eee_adv;
  	eee->lp_advertised = lp;
  
  	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;
  
  	mutex_lock(&tp->control);
  
  	ret = tp->rtl_ops.eee_get(tp, edata);
  
  	mutex_unlock(&tp->control);
  
  	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;
  
  	mutex_lock(&tp->control);
  
  	ret = tp->rtl_ops.eee_set(tp, edata);
  	if (!ret)
  		ret = mii_nway_restart(&tp->mii);
  
  	mutex_unlock(&tp->control);
  
  	usb_autopm_put_interface(tp->intf);
  
  out:
  	return ret;
  }
  
  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;
  }
  
  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:
  	case RTL_VER_07:
  		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:
  	case RTL_VER_07:
  		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(netdev) && netif_carrier_ok(netdev)) {
  			netif_stop_queue(netdev);
  			napi_disable(&tp->napi);
  			tp->rtl_ops.disable(tp);
  			tp->rtl_ops.enable(tp);
  			rtl_start_rx(tp);
  			clear_bit(RTL8152_SET_RX_MODE, &tp->flags);
  			_rtl8152_set_rx_mode(netdev);
  			napi_enable(&tp->napi);
  			netif_wake_queue(netdev);
  		}
  	}
  
  	mutex_unlock(&tp->control);
  
  	usb_autopm_put_interface(tp->intf);
  
  	return ret;
  }
  
  static int rtl8152_get_tunable(struct net_device *netdev,
  			       const struct ethtool_tunable *tunable, void *d)
  {
  	struct r8152 *tp = netdev_priv(netdev);
  
  	switch (tunable->id) {
  	case ETHTOOL_RX_COPYBREAK:
  		*(u32 *)d = tp->rx_copybreak;
  		break;
  	default:
  		return -EOPNOTSUPP;
  	}
  
  	return 0;
  }
  
  static int rtl8152_set_tunable(struct net_device *netdev,
  			       const struct ethtool_tunable *tunable,
  			       const void *d)
  {
  	struct r8152 *tp = netdev_priv(netdev);
  	u32 val;
  
  	switch (tunable->id) {
  	case ETHTOOL_RX_COPYBREAK:
  		val = *(u32 *)d;
  		if (val < ETH_ZLEN) {
  			netif_err(tp, rx_err, netdev,
  				  "Invalid rx copy break value\n");
  			return -EINVAL;
  		}
  
  		if (tp->rx_copybreak != val) {
  			if (netdev->flags & IFF_UP) {
  				mutex_lock(&tp->control);
  				napi_disable(&tp->napi);
  				tp->rx_copybreak = val;
  				napi_enable(&tp->napi);
  				mutex_unlock(&tp->control);
  			} else {
  				tp->rx_copybreak = val;
  			}
  		}
  		break;
  	default:
  		return -EOPNOTSUPP;
  	}
  
  	return 0;
  }
  
  static void rtl8152_get_ringparam(struct net_device *netdev,
  				  struct ethtool_ringparam *ring)
  {
  	struct r8152 *tp = netdev_priv(netdev);
  
  	ring->rx_max_pending = RTL8152_RX_MAX_PENDING;
  	ring->rx_pending = tp->rx_pending;
  }
  
  static int rtl8152_set_ringparam(struct net_device *netdev,
  				 struct ethtool_ringparam *ring)
  {
  	struct r8152 *tp = netdev_priv(netdev);
  
  	if (ring->rx_pending < (RTL8152_MAX_RX * 2))
  		return -EINVAL;
  
  	if (tp->rx_pending != ring->rx_pending) {
  		if (netdev->flags & IFF_UP) {
  			mutex_lock(&tp->control);
  			napi_disable(&tp->napi);
  			tp->rx_pending = ring->rx_pending;
  			napi_enable(&tp->napi);
  			mutex_unlock(&tp->control);
  		} else {
  			tp->rx_pending = ring->rx_pending;
  		}
  	}
  
  	return 0;
  }
  
  static const struct ethtool_ops ops = {
  	.get_drvinfo = rtl8152_get_drvinfo,
  	.get_link = ethtool_op_get_link,
  	.nway_reset = rtl8152_nway_reset,
  	.get_msglevel = rtl8152_get_msglevel,
  	.set_msglevel = rtl8152_set_msglevel,
  	.get_wol = rtl8152_get_wol,
  	.set_wol = rtl8152_set_wol,
  	.get_strings = rtl8152_get_strings,
  	.get_sset_count = rtl8152_get_sset_count,
  	.get_ethtool_stats = rtl8152_get_ethtool_stats,
  	.get_coalesce = rtl8152_get_coalesce,
  	.set_coalesce = rtl8152_set_coalesce,
  	.get_eee = rtl_ethtool_get_eee,
  	.set_eee = rtl_ethtool_set_eee,
  	.get_link_ksettings = rtl8152_get_link_ksettings,
  	.set_link_ksettings = rtl8152_set_link_ksettings,
  	.get_tunable = rtl8152_get_tunable,
  	.set_tunable = rtl8152_set_tunable,
  	.get_ringparam = rtl8152_get_ringparam,
  	.set_ringparam = rtl8152_set_ringparam,
  };
  
  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);
  	int res;
  
  	if (test_bit(RTL8152_UNPLUG, &tp->flags))
  		return -ENODEV;
  
  	res = usb_autopm_get_interface(tp->intf);
  	if (res < 0)
  		goto out;
  
  	switch (cmd) {
  	case SIOCGMIIPHY:
  		data->phy_id = R8152_PHY_ID; /* Internal PHY */
  		break;
  
  	case SIOCGMIIREG:
  		mutex_lock(&tp->control);
  		data->val_out = r8152_mdio_read(tp, data->reg_num);
  		mutex_unlock(&tp->control);
  		break;
  
  	case SIOCSMIIREG:
  		if (!capable(CAP_NET_ADMIN)) {
  			res = -EPERM;
  			break;
  		}
  		mutex_lock(&tp->control);
  		r8152_mdio_write(tp, data->reg_num, data->val_in);
  		mutex_unlock(&tp->control);
  		break;
  
  	default:
  		res = -EOPNOTSUPP;
  	}
  
  	usb_autopm_put_interface(tp->intf);
  
  out:
  	return res;
  }
  
  static int rtl8152_change_mtu(struct net_device *dev, int new_mtu)
  {
  	struct r8152 *tp = netdev_priv(dev);
  	int ret;
  
  	switch (tp->version) {
  	case RTL_VER_01:
  	case RTL_VER_02:
  	case RTL_VER_07:
  		dev->mtu = new_mtu;
  		return 0;
  	default:
  		break;
  	}
  
  	ret = usb_autopm_get_interface(tp->intf);
  	if (ret < 0)
  		return ret;
  
  	mutex_lock(&tp->control);
  
  	dev->mtu = new_mtu;
  
  	if (netif_running(dev)) {
  		u32 rms = new_mtu + VLAN_ETH_HLEN + ETH_FCS_LEN;
  
  		ocp_write_word(tp, MCU_TYPE_PLA, PLA_RMS, rms);
  
  		if (netif_carrier_ok(dev))
  			r8153_set_rx_early_size(tp);
  	}
  
  	mutex_unlock(&tp->control);
  
  	usb_autopm_put_interface(tp->intf);
  
  	return ret;
  }
  
  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,
  	.ndo_set_features	= rtl8152_set_features,
  	.ndo_set_rx_mode	= rtl8152_set_rx_mode,
  	.ndo_set_mac_address	= rtl8152_set_mac_address,
  	.ndo_change_mtu		= rtl8152_change_mtu,
  	.ndo_validate_addr	= eth_validate_addr,
  	.ndo_features_check	= rtl8152_features_check,
  };
  
  static void rtl8152_unload(struct r8152 *tp)
  {
  	if (test_bit(RTL8152_UNPLUG, &tp->flags))
  		return;
  
  	if (tp->version != RTL_VER_01)
  		r8152_power_cut_en(tp, true);
  }
  
  static void rtl8153_unload(struct r8152 *tp)
  {
  	if (test_bit(RTL8152_UNPLUG, &tp->flags))
  		return;
  
  	r8153_power_cut_en(tp, false);
  }
  
  static void rtl8153b_unload(struct r8152 *tp)
  {
  	if (test_bit(RTL8152_UNPLUG, &tp->flags))
  		return;
  
  	r8153b_power_cut_en(tp, false);
  }
  
  static int rtl_ops_init(struct r8152 *tp)
  {
  	struct rtl_ops *ops = &tp->rtl_ops;
  	int ret = 0;
  
  	switch (tp->version) {
  	case RTL_VER_01:
  	case RTL_VER_02:
  	case RTL_VER_07:
  		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;
  		ops->in_nway		= rtl8152_in_nway;
  		ops->hw_phy_cfg		= r8152b_hw_phy_cfg;
  		ops->autosuspend_en	= rtl_runtime_suspend_enable;
  		tp->rx_buf_sz		= 16 * 1024;
  		tp->eee_en		= true;
  		tp->eee_adv		= MDIO_EEE_100TX;
  		break;
  
  	case RTL_VER_03:
  	case RTL_VER_04:
  	case RTL_VER_05:
  	case RTL_VER_06:
  		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		= r8152_set_eee;
  		ops->in_nway		= rtl8153_in_nway;
  		ops->hw_phy_cfg		= r8153_hw_phy_cfg;
  		ops->autosuspend_en	= rtl8153_runtime_enable;
  		tp->rx_buf_sz		= 32 * 1024;
  		tp->eee_en		= true;
  		tp->eee_adv		= MDIO_EEE_1000T | MDIO_EEE_100TX;
  		break;
  
  	case RTL_VER_08:
  	case RTL_VER_09:
  		ops->init		= r8153b_init;
  		ops->enable		= rtl8153_enable;
  		ops->disable		= rtl8153_disable;
  		ops->up			= rtl8153b_up;
  		ops->down		= rtl8153b_down;
  		ops->unload		= rtl8153b_unload;
  		ops->eee_get		= r8153_get_eee;
  		ops->eee_set		= r8152_set_eee;
  		ops->in_nway		= rtl8153_in_nway;
  		ops->hw_phy_cfg		= r8153b_hw_phy_cfg;
  		ops->autosuspend_en	= rtl8153b_runtime_enable;
  		tp->rx_buf_sz		= 32 * 1024;
  		tp->eee_en		= true;
  		tp->eee_adv		= MDIO_EEE_1000T | MDIO_EEE_100TX;
  		break;
  
  	default:
  		ret = -ENODEV;
  		netif_err(tp, probe, tp->netdev, "Unknown Device\n");
  		break;
  	}
  
  	return ret;
  }
  
  static u8 rtl_get_version(struct usb_interface *intf)
  {
  	struct usb_device *udev = interface_to_usbdev(intf);
  	u32 ocp_data = 0;
  	__le32 *tmp;
  	u8 version;
  	int ret;
  
  	tmp = kmalloc(sizeof(*tmp), GFP_KERNEL);
  	if (!tmp)
  		return 0;
  
  	ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
  			      RTL8152_REQ_GET_REGS, RTL8152_REQT_READ,
  			      PLA_TCR0, MCU_TYPE_PLA, tmp, sizeof(*tmp), 500);
  	if (ret > 0)
  		ocp_data = (__le32_to_cpu(*tmp) >> 16) & VERSION_MASK;
  
  	kfree(tmp);
  
  	switch (ocp_data) {
  	case 0x4c00:
  		version = RTL_VER_01;
  		break;
  	case 0x4c10:
  		version = RTL_VER_02;
  		break;
  	case 0x5c00:
  		version = RTL_VER_03;
  		break;
  	case 0x5c10:
  		version = RTL_VER_04;
  		break;
  	case 0x5c20:
  		version = RTL_VER_05;
  		break;
  	case 0x5c30:
  		version = RTL_VER_06;
  		break;
  	case 0x4800:
  		version = RTL_VER_07;
  		break;
  	case 0x6000:
  		version = RTL_VER_08;
  		break;
  	case 0x6010:
  		version = RTL_VER_09;
  		break;
  	default:
  		version = RTL_VER_UNKNOWN;
  		dev_info(&intf->dev, "Unknown version 0x%04x\n", ocp_data);
  		break;
  	}
  
  	dev_dbg(&intf->dev, "Detected version 0x%04x\n", version);
  
  	return version;
  }
  
  static int rtl8152_probe(struct usb_interface *intf,
  			 const struct usb_device_id *id)
  {
  	struct usb_device *udev = interface_to_usbdev(intf);
  	u8 version = rtl_get_version(intf);
  	struct r8152 *tp;
  	struct net_device *netdev;
  	int ret;
  
  	if (version == RTL_VER_UNKNOWN)
  		return -ENODEV;
  
  	if (udev->actconfig->desc.bConfigurationValue != 1) {
  		usb_driver_set_configuration(udev, 1);
  		return -ENODEV;
  	}
  
  	if (intf->cur_altsetting->desc.bNumEndpoints < 3)
  		return -ENODEV;
  
  	usb_reset_device(udev);
  	netdev = alloc_etherdev(sizeof(struct r8152));
  	if (!netdev) {
  		dev_err(&intf->dev, "Out of memory\n");
  		return -ENOMEM;
  	}
  
  	SET_NETDEV_DEV(netdev, &intf->dev);
  	tp = netdev_priv(netdev);
  	tp->msg_enable = 0x7FFF;
  
  	tp->udev = udev;
  	tp->netdev = netdev;
  	tp->intf = intf;
  	tp->version = version;
  
  	switch (version) {
  	case RTL_VER_01:
  	case RTL_VER_02:
  	case RTL_VER_07:
  		tp->mii.supports_gmii = 0;
  		break;
  	default:
  		tp->mii.supports_gmii = 1;
  		break;
  	}
  
  	ret = rtl_ops_init(tp);
  	if (ret)
  		goto out;
  
  	mutex_init(&tp->control);
  	INIT_DELAYED_WORK(&tp->schedule, rtl_work_func_t);
  	INIT_DELAYED_WORK(&tp->hw_phy_work, rtl_hw_phy_work_func_t);
  	tasklet_init(&tp->tx_tl, bottom_half, (unsigned long)tp);
  	tasklet_disable(&tp->tx_tl);
  
  	netdev->netdev_ops = &rtl8152_netdev_ops;
  	netdev->watchdog_timeo = RTL8152_TX_TIMEOUT;
  
  	netdev->features |= NETIF_F_RXCSUM | NETIF_F_IP_CSUM | NETIF_F_SG |
  			    NETIF_F_TSO | NETIF_F_FRAGLIST | NETIF_F_IPV6_CSUM |
  			    NETIF_F_TSO6 | NETIF_F_HW_VLAN_CTAG_RX |
  			    NETIF_F_HW_VLAN_CTAG_TX;
  	netdev->hw_features = NETIF_F_RXCSUM | NETIF_F_IP_CSUM | NETIF_F_SG |
  			      NETIF_F_TSO | NETIF_F_FRAGLIST |
  			      NETIF_F_IPV6_CSUM | NETIF_F_TSO6 |
  			      NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HW_VLAN_CTAG_TX;
  	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;
  
  	if (tp->version == RTL_VER_01) {
  		netdev->features &= ~NETIF_F_RXCSUM;
  		netdev->hw_features &= ~NETIF_F_RXCSUM;
  	}
  
  	if (le16_to_cpu(udev->descriptor.bcdDevice) == 0x3011 && udev->serial &&
  	    (!strcmp(udev->serial, "000001000000") || !strcmp(udev->serial, "000002000000"))) {
  		dev_info(&udev->dev, "Dell TB16 Dock, disable RX aggregation");
  		set_bit(DELL_TB_RX_AGG_BUG, &tp->flags);
  	}
  
  	netdev->ethtool_ops = &ops;
  	netif_set_gso_max_size(netdev, RTL_LIMITED_TSO_SIZE);
  
  	/* MTU range: 68 - 1500 or 9194 */
  	netdev->min_mtu = ETH_MIN_MTU;
  	switch (tp->version) {
  	case RTL_VER_01:
  	case RTL_VER_02:
  		netdev->max_mtu = ETH_DATA_LEN;
  		break;
  	default:
  		netdev->max_mtu = RTL8153_MAX_MTU;
  		break;
  	}
  
  	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;
  
  	tp->autoneg = AUTONEG_ENABLE;
  	tp->speed = SPEED_100;
  	tp->advertising = RTL_ADVERTISED_10_HALF | RTL_ADVERTISED_10_FULL |
  			  RTL_ADVERTISED_100_HALF | RTL_ADVERTISED_100_FULL;
  	if (tp->mii.supports_gmii) {
  		tp->speed = SPEED_1000;
  		tp->advertising |= RTL_ADVERTISED_1000_FULL;
  	}
  	tp->duplex = DUPLEX_FULL;
  
  	tp->rx_copybreak = RTL8152_RXFG_HEADSZ;
  	tp->rx_pending = 10 * RTL8152_MAX_RX;
  
  	intf->needs_remote_wakeup = 1;
  
  	if (!rtl_can_wakeup(tp))
  		__rtl_set_wol(tp, 0);
  	else
  		tp->saved_wolopts = __rtl_get_wol(tp);
  
  	tp->rtl_ops.init(tp);
  	queue_delayed_work(system_long_wq, &tp->hw_phy_work, 0);
  	set_ethernet_addr(tp);
  
  	usb_set_intfdata(intf, tp);
  	netif_napi_add(netdev, &tp->napi, r8152_poll, RTL8152_NAPI_WEIGHT);
  
  	ret = register_netdev(netdev);
  	if (ret != 0) {
  		netif_err(tp, probe, netdev, "couldn't register the device\n");
  		goto out1;
  	}
  
  	if (tp->saved_wolopts)
  		device_set_wakeup_enable(&udev->dev, true);
  	else
  		device_set_wakeup_enable(&udev->dev, false);
  
  	netif_info(tp, probe, netdev, "%s\n", DRIVER_VERSION);
  
  	return 0;
  
  out1:
  	tasklet_kill(&tp->tx_tl);
  	usb_set_intfdata(intf, NULL);
  out:
  	free_netdev(netdev);
  	return ret;
  }
  
  static void rtl8152_disconnect(struct usb_interface *intf)
  {
  	struct r8152 *tp = usb_get_intfdata(intf);
  
  	usb_set_intfdata(intf, NULL);
  	if (tp) {
  		rtl_set_unplug(tp);
  
  		unregister_netdev(tp->netdev);
  		tasklet_kill(&tp->tx_tl);
  		cancel_delayed_work_sync(&tp->hw_phy_work);
  		tp->rtl_ops.unload(tp);
  		free_netdev(tp->netdev);
  	}
  }
  
  #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
  
  /* table of devices that work with this driver */
  static const struct usb_device_id rtl8152_table[] = {
  	{REALTEK_USB_DEVICE(VENDOR_ID_REALTEK, 0x8050)},
  	{REALTEK_USB_DEVICE(VENDOR_ID_REALTEK, 0x8152)},
  	{REALTEK_USB_DEVICE(VENDOR_ID_REALTEK, 0x8153)},
  	{REALTEK_USB_DEVICE(VENDOR_ID_MICROSOFT, 0x07ab)},
  	{REALTEK_USB_DEVICE(VENDOR_ID_MICROSOFT, 0x07c6)},
  	{REALTEK_USB_DEVICE(VENDOR_ID_SAMSUNG, 0xa101)},
  	{REALTEK_USB_DEVICE(VENDOR_ID_LENOVO,  0x304f)},
  	{REALTEK_USB_DEVICE(VENDOR_ID_LENOVO,  0x3062)},
  	{REALTEK_USB_DEVICE(VENDOR_ID_LENOVO,  0x3069)},
  	{REALTEK_USB_DEVICE(VENDOR_ID_LENOVO,  0x7205)},
  	{REALTEK_USB_DEVICE(VENDOR_ID_LENOVO,  0x720c)},
  	{REALTEK_USB_DEVICE(VENDOR_ID_LENOVO,  0x7214)},
  	{REALTEK_USB_DEVICE(VENDOR_ID_LENOVO,  0xa387)},
  	{REALTEK_USB_DEVICE(VENDOR_ID_LINKSYS, 0x0041)},
  	{REALTEK_USB_DEVICE(VENDOR_ID_NVIDIA,  0x09ff)},
  	{REALTEK_USB_DEVICE(VENDOR_ID_TPLINK,  0x0601)},
  	{}
  };
  
  MODULE_DEVICE_TABLE(usb, rtl8152_table);
  
  static struct usb_driver rtl8152_driver = {
  	.name =		MODULENAME,
  	.id_table =	rtl8152_table,
  	.probe =	rtl8152_probe,
  	.disconnect =	rtl8152_disconnect,
  	.suspend =	rtl8152_suspend,
  	.resume =	rtl8152_resume,
  	.reset_resume =	rtl8152_reset_resume,
  	.pre_reset =	rtl8152_pre_reset,
  	.post_reset =	rtl8152_post_reset,
  	.supports_autosuspend = 1,
  	.disable_hub_initiated_lpm = 1,
  };
  
  module_usb_driver(rtl8152_driver);
  
  MODULE_AUTHOR(DRIVER_AUTHOR);
  MODULE_DESCRIPTION(DRIVER_DESC);
  MODULE_LICENSE("GPL");
  MODULE_VERSION(DRIVER_VERSION);
  