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r8169-3.8-ethercat.c
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r8169-3.8-ethercat.c
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/*
* r8169.c: RealTek 8169/8168/8101 ethernet driver.
*
* Copyright (c) 2002 ShuChen <[email protected]>
* Copyright (c) 2003 - 2007 Francois Romieu <[email protected]>
* Copyright (c) a lot of people too. Please respect their work.
*
* See MAINTAINERS file for support contact information.
*/
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/pci.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/delay.h>
#include <linux/ethtool.h>
#include <linux/mii.h>
#include <linux/if_vlan.h>
#include <linux/crc32.h>
#include <linux/in.h>
#include <linux/ip.h>
#include <linux/tcp.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/dma-mapping.h>
#include <linux/pm_runtime.h>
#include <linux/firmware.h>
#include <linux/pci-aspm.h>
#include <linux/prefetch.h>
#include <asm/io.h>
#include <asm/irq.h>
#include "../globals.h"
#include "ecdev.h"
#define RTL8169_VERSION "2.3LK-NAPI"
#define MODULENAME "ec_r8169"
#define PFX MODULENAME ": "
#define FIRMWARE_8168D_1 "rtl_nic/rtl8168d-1.fw"
#define FIRMWARE_8168D_2 "rtl_nic/rtl8168d-2.fw"
#define FIRMWARE_8168E_1 "rtl_nic/rtl8168e-1.fw"
#define FIRMWARE_8168E_2 "rtl_nic/rtl8168e-2.fw"
#define FIRMWARE_8168E_3 "rtl_nic/rtl8168e-3.fw"
#define FIRMWARE_8168F_1 "rtl_nic/rtl8168f-1.fw"
#define FIRMWARE_8168F_2 "rtl_nic/rtl8168f-2.fw"
#define FIRMWARE_8105E_1 "rtl_nic/rtl8105e-1.fw"
#define FIRMWARE_8402_1 "rtl_nic/rtl8402-1.fw"
#define FIRMWARE_8411_1 "rtl_nic/rtl8411-1.fw"
#define FIRMWARE_8106E_1 "rtl_nic/rtl8106e-1.fw"
#define FIRMWARE_8168G_1 "rtl_nic/rtl8168g-1.fw"
#ifdef RTL8169_DEBUG
#define assert(expr) \
if (!(expr)) { \
printk( "Assertion failed! %s,%s,%s,line=%d\n", \
#expr,__FILE__,__func__,__LINE__); \
}
#define dprintk(fmt, args...) \
do { printk(KERN_DEBUG PFX fmt, ## args); } while (0)
#else
#define assert(expr) do {} while (0)
#define dprintk(fmt, args...) do {} while (0)
#endif /* RTL8169_DEBUG */
#define R8169_MSG_DEFAULT \
(NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_IFUP | NETIF_MSG_IFDOWN)
#define TX_SLOTS_AVAIL(tp) \
(tp->dirty_tx + NUM_TX_DESC - tp->cur_tx)
/* A skbuff with nr_frags needs nr_frags+1 entries in the tx queue */
#define TX_FRAGS_READY_FOR(tp,nr_frags) \
(TX_SLOTS_AVAIL(tp) >= (nr_frags + 1))
/* 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;
#define MAX_READ_REQUEST_SHIFT 12
#define TX_DMA_BURST 7 /* Maximum PCI burst, '7' is unlimited */
#define SafeMtu 0x1c20 /* ... actually life sucks beyond ~7k */
#define InterFrameGap 0x03 /* 3 means InterFrameGap = the shortest one */
#define R8169_REGS_SIZE 256
#define R8169_NAPI_WEIGHT 64
#define NUM_TX_DESC 64 /* Number of Tx descriptor registers */
#define NUM_RX_DESC 256 /* Number of Rx descriptor registers */
#define RX_BUF_SIZE 1536 /* Rx Buffer size */
#define R8169_TX_RING_BYTES (NUM_TX_DESC * sizeof(struct TxDesc))
#define R8169_RX_RING_BYTES (NUM_RX_DESC * sizeof(struct RxDesc))
#define RTL8169_TX_TIMEOUT (6*HZ)
#define RTL8169_PHY_TIMEOUT (10*HZ)
#define RTL_EEPROM_SIG cpu_to_le32(0x8129)
#define RTL_EEPROM_SIG_MASK cpu_to_le32(0xffff)
#define RTL_EEPROM_SIG_ADDR 0x0000
/* write/read MMIO register */
#define RTL_W8(reg, val8) writeb ((val8), ioaddr + (reg))
#define RTL_W16(reg, val16) writew ((val16), ioaddr + (reg))
#define RTL_W32(reg, val32) writel ((val32), ioaddr + (reg))
#define RTL_R8(reg) readb (ioaddr + (reg))
#define RTL_R16(reg) readw (ioaddr + (reg))
#define RTL_R32(reg) readl (ioaddr + (reg))
enum mac_version {
RTL_GIGA_MAC_VER_01 = 0,
RTL_GIGA_MAC_VER_02,
RTL_GIGA_MAC_VER_03,
RTL_GIGA_MAC_VER_04,
RTL_GIGA_MAC_VER_05,
RTL_GIGA_MAC_VER_06,
RTL_GIGA_MAC_VER_07,
RTL_GIGA_MAC_VER_08,
RTL_GIGA_MAC_VER_09,
RTL_GIGA_MAC_VER_10,
RTL_GIGA_MAC_VER_11,
RTL_GIGA_MAC_VER_12,
RTL_GIGA_MAC_VER_13,
RTL_GIGA_MAC_VER_14,
RTL_GIGA_MAC_VER_15,
RTL_GIGA_MAC_VER_16,
RTL_GIGA_MAC_VER_17,
RTL_GIGA_MAC_VER_18,
RTL_GIGA_MAC_VER_19,
RTL_GIGA_MAC_VER_20,
RTL_GIGA_MAC_VER_21,
RTL_GIGA_MAC_VER_22,
RTL_GIGA_MAC_VER_23,
RTL_GIGA_MAC_VER_24,
RTL_GIGA_MAC_VER_25,
RTL_GIGA_MAC_VER_26,
RTL_GIGA_MAC_VER_27,
RTL_GIGA_MAC_VER_28,
RTL_GIGA_MAC_VER_29,
RTL_GIGA_MAC_VER_30,
RTL_GIGA_MAC_VER_31,
RTL_GIGA_MAC_VER_32,
RTL_GIGA_MAC_VER_33,
RTL_GIGA_MAC_VER_34,
RTL_GIGA_MAC_VER_35,
RTL_GIGA_MAC_VER_36,
RTL_GIGA_MAC_VER_37,
RTL_GIGA_MAC_VER_38,
RTL_GIGA_MAC_VER_39,
RTL_GIGA_MAC_VER_40,
RTL_GIGA_MAC_VER_41,
RTL_GIGA_MAC_NONE = 0xff,
};
enum rtl_tx_desc_version {
RTL_TD_0 = 0,
RTL_TD_1 = 1,
};
#define JUMBO_1K ETH_DATA_LEN
#define JUMBO_4K (4*1024 - ETH_HLEN - 2)
#define JUMBO_6K (6*1024 - ETH_HLEN - 2)
#define JUMBO_7K (7*1024 - ETH_HLEN - 2)
#define JUMBO_9K (9*1024 - ETH_HLEN - 2)
#define _R(NAME,TD,FW,SZ,B) { \
.name = NAME, \
.txd_version = TD, \
.fw_name = FW, \
.jumbo_max = SZ, \
.jumbo_tx_csum = B \
}
static const struct {
const char *name;
enum rtl_tx_desc_version txd_version;
const char *fw_name;
u16 jumbo_max;
bool jumbo_tx_csum;
} rtl_chip_infos[] = {
/* PCI devices. */
[RTL_GIGA_MAC_VER_01] =
_R("RTL8169", RTL_TD_0, NULL, JUMBO_7K, true),
[RTL_GIGA_MAC_VER_02] =
_R("RTL8169s", RTL_TD_0, NULL, JUMBO_7K, true),
[RTL_GIGA_MAC_VER_03] =
_R("RTL8110s", RTL_TD_0, NULL, JUMBO_7K, true),
[RTL_GIGA_MAC_VER_04] =
_R("RTL8169sb/8110sb", RTL_TD_0, NULL, JUMBO_7K, true),
[RTL_GIGA_MAC_VER_05] =
_R("RTL8169sc/8110sc", RTL_TD_0, NULL, JUMBO_7K, true),
[RTL_GIGA_MAC_VER_06] =
_R("RTL8169sc/8110sc", RTL_TD_0, NULL, JUMBO_7K, true),
/* PCI-E devices. */
[RTL_GIGA_MAC_VER_07] =
_R("RTL8102e", RTL_TD_1, NULL, JUMBO_1K, true),
[RTL_GIGA_MAC_VER_08] =
_R("RTL8102e", RTL_TD_1, NULL, JUMBO_1K, true),
[RTL_GIGA_MAC_VER_09] =
_R("RTL8102e", RTL_TD_1, NULL, JUMBO_1K, true),
[RTL_GIGA_MAC_VER_10] =
_R("RTL8101e", RTL_TD_0, NULL, JUMBO_1K, true),
[RTL_GIGA_MAC_VER_11] =
_R("RTL8168b/8111b", RTL_TD_0, NULL, JUMBO_4K, false),
[RTL_GIGA_MAC_VER_12] =
_R("RTL8168b/8111b", RTL_TD_0, NULL, JUMBO_4K, false),
[RTL_GIGA_MAC_VER_13] =
_R("RTL8101e", RTL_TD_0, NULL, JUMBO_1K, true),
[RTL_GIGA_MAC_VER_14] =
_R("RTL8100e", RTL_TD_0, NULL, JUMBO_1K, true),
[RTL_GIGA_MAC_VER_15] =
_R("RTL8100e", RTL_TD_0, NULL, JUMBO_1K, true),
[RTL_GIGA_MAC_VER_16] =
_R("RTL8101e", RTL_TD_0, NULL, JUMBO_1K, true),
[RTL_GIGA_MAC_VER_17] =
_R("RTL8168b/8111b", RTL_TD_1, NULL, JUMBO_4K, false),
[RTL_GIGA_MAC_VER_18] =
_R("RTL8168cp/8111cp", RTL_TD_1, NULL, JUMBO_6K, false),
[RTL_GIGA_MAC_VER_19] =
_R("RTL8168c/8111c", RTL_TD_1, NULL, JUMBO_6K, false),
[RTL_GIGA_MAC_VER_20] =
_R("RTL8168c/8111c", RTL_TD_1, NULL, JUMBO_6K, false),
[RTL_GIGA_MAC_VER_21] =
_R("RTL8168c/8111c", RTL_TD_1, NULL, JUMBO_6K, false),
[RTL_GIGA_MAC_VER_22] =
_R("RTL8168c/8111c", RTL_TD_1, NULL, JUMBO_6K, false),
[RTL_GIGA_MAC_VER_23] =
_R("RTL8168cp/8111cp", RTL_TD_1, NULL, JUMBO_6K, false),
[RTL_GIGA_MAC_VER_24] =
_R("RTL8168cp/8111cp", RTL_TD_1, NULL, JUMBO_6K, false),
[RTL_GIGA_MAC_VER_25] =
_R("RTL8168d/8111d", RTL_TD_1, FIRMWARE_8168D_1,
JUMBO_9K, false),
[RTL_GIGA_MAC_VER_26] =
_R("RTL8168d/8111d", RTL_TD_1, FIRMWARE_8168D_2,
JUMBO_9K, false),
[RTL_GIGA_MAC_VER_27] =
_R("RTL8168dp/8111dp", RTL_TD_1, NULL, JUMBO_9K, false),
[RTL_GIGA_MAC_VER_28] =
_R("RTL8168dp/8111dp", RTL_TD_1, NULL, JUMBO_9K, false),
[RTL_GIGA_MAC_VER_29] =
_R("RTL8105e", RTL_TD_1, FIRMWARE_8105E_1,
JUMBO_1K, true),
[RTL_GIGA_MAC_VER_30] =
_R("RTL8105e", RTL_TD_1, FIRMWARE_8105E_1,
JUMBO_1K, true),
[RTL_GIGA_MAC_VER_31] =
_R("RTL8168dp/8111dp", RTL_TD_1, NULL, JUMBO_9K, false),
[RTL_GIGA_MAC_VER_32] =
_R("RTL8168e/8111e", RTL_TD_1, FIRMWARE_8168E_1,
JUMBO_9K, false),
[RTL_GIGA_MAC_VER_33] =
_R("RTL8168e/8111e", RTL_TD_1, FIRMWARE_8168E_2,
JUMBO_9K, false),
[RTL_GIGA_MAC_VER_34] =
_R("RTL8168evl/8111evl",RTL_TD_1, FIRMWARE_8168E_3,
JUMBO_9K, false),
[RTL_GIGA_MAC_VER_35] =
_R("RTL8168f/8111f", RTL_TD_1, FIRMWARE_8168F_1,
JUMBO_9K, false),
[RTL_GIGA_MAC_VER_36] =
_R("RTL8168f/8111f", RTL_TD_1, FIRMWARE_8168F_2,
JUMBO_9K, false),
[RTL_GIGA_MAC_VER_37] =
_R("RTL8402", RTL_TD_1, FIRMWARE_8402_1,
JUMBO_1K, true),
[RTL_GIGA_MAC_VER_38] =
_R("RTL8411", RTL_TD_1, FIRMWARE_8411_1,
JUMBO_9K, false),
[RTL_GIGA_MAC_VER_39] =
_R("RTL8106e", RTL_TD_1, FIRMWARE_8106E_1,
JUMBO_1K, true),
[RTL_GIGA_MAC_VER_40] =
_R("RTL8168g/8111g", RTL_TD_1, FIRMWARE_8168G_1,
JUMBO_9K, false),
[RTL_GIGA_MAC_VER_41] =
_R("RTL8168g/8111g", RTL_TD_1, NULL, JUMBO_9K, false),
};
#undef _R
enum cfg_version {
RTL_CFG_0 = 0x00,
RTL_CFG_1,
RTL_CFG_2
};
static DEFINE_PCI_DEVICE_TABLE(rtl8169_pci_tbl) = {
{ PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8129), 0, 0, RTL_CFG_0 },
{ PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8136), 0, 0, RTL_CFG_2 },
{ PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8167), 0, 0, RTL_CFG_0 },
{ PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8168), 0, 0, RTL_CFG_1 },
{ PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8169), 0, 0, RTL_CFG_0 },
{ PCI_VENDOR_ID_DLINK, 0x4300,
PCI_VENDOR_ID_DLINK, 0x4b10, 0, 0, RTL_CFG_1 },
{ PCI_DEVICE(PCI_VENDOR_ID_DLINK, 0x4300), 0, 0, RTL_CFG_0 },
{ PCI_DEVICE(PCI_VENDOR_ID_DLINK, 0x4302), 0, 0, RTL_CFG_0 },
{ PCI_DEVICE(PCI_VENDOR_ID_AT, 0xc107), 0, 0, RTL_CFG_0 },
{ PCI_DEVICE(0x16ec, 0x0116), 0, 0, RTL_CFG_0 },
{ PCI_VENDOR_ID_LINKSYS, 0x1032,
PCI_ANY_ID, 0x0024, 0, 0, RTL_CFG_0 },
{ 0x0001, 0x8168,
PCI_ANY_ID, 0x2410, 0, 0, RTL_CFG_2 },
{0,},
};
/* prevent driver from being loaded automatically */
//MODULE_DEVICE_TABLE(pci, rtl8169_pci_tbl);
static int rx_buf_sz = 16383;
static int use_dac;
static struct {
u32 msg_enable;
} debug = { -1 };
enum rtl_registers {
MAC0 = 0, /* Ethernet hardware address. */
MAC4 = 4,
MAR0 = 8, /* Multicast filter. */
CounterAddrLow = 0x10,
CounterAddrHigh = 0x14,
TxDescStartAddrLow = 0x20,
TxDescStartAddrHigh = 0x24,
TxHDescStartAddrLow = 0x28,
TxHDescStartAddrHigh = 0x2c,
FLASH = 0x30,
ERSR = 0x36,
ChipCmd = 0x37,
TxPoll = 0x38,
IntrMask = 0x3c,
IntrStatus = 0x3e,
TxConfig = 0x40,
#define TXCFG_AUTO_FIFO (1 << 7) /* 8111e-vl */
#define TXCFG_EMPTY (1 << 11) /* 8111e-vl */
RxConfig = 0x44,
#define RX128_INT_EN (1 << 15) /* 8111c and later */
#define RX_MULTI_EN (1 << 14) /* 8111c only */
#define RXCFG_FIFO_SHIFT 13
/* No threshold before first PCI xfer */
#define RX_FIFO_THRESH (7 << RXCFG_FIFO_SHIFT)
#define RXCFG_DMA_SHIFT 8
/* Unlimited maximum PCI burst. */
#define RX_DMA_BURST (7 << RXCFG_DMA_SHIFT)
RxMissed = 0x4c,
Cfg9346 = 0x50,
Config0 = 0x51,
Config1 = 0x52,
Config2 = 0x53,
#define PME_SIGNAL (1 << 5) /* 8168c and later */
Config3 = 0x54,
Config4 = 0x55,
Config5 = 0x56,
MultiIntr = 0x5c,
PHYAR = 0x60,
PHYstatus = 0x6c,
RxMaxSize = 0xda,
CPlusCmd = 0xe0,
IntrMitigate = 0xe2,
RxDescAddrLow = 0xe4,
RxDescAddrHigh = 0xe8,
EarlyTxThres = 0xec, /* 8169. Unit of 32 bytes. */
#define NoEarlyTx 0x3f /* Max value : no early transmit. */
MaxTxPacketSize = 0xec, /* 8101/8168. Unit of 128 bytes. */
#define TxPacketMax (8064 >> 7)
#define EarlySize 0x27
FuncEvent = 0xf0,
FuncEventMask = 0xf4,
FuncPresetState = 0xf8,
FuncForceEvent = 0xfc,
};
enum rtl8110_registers {
TBICSR = 0x64,
TBI_ANAR = 0x68,
TBI_LPAR = 0x6a,
};
enum rtl8168_8101_registers {
CSIDR = 0x64,
CSIAR = 0x68,
#define CSIAR_FLAG 0x80000000
#define CSIAR_WRITE_CMD 0x80000000
#define CSIAR_BYTE_ENABLE 0x0f
#define CSIAR_BYTE_ENABLE_SHIFT 12
#define CSIAR_ADDR_MASK 0x0fff
#define CSIAR_FUNC_CARD 0x00000000
#define CSIAR_FUNC_SDIO 0x00010000
#define CSIAR_FUNC_NIC 0x00020000
PMCH = 0x6f,
EPHYAR = 0x80,
#define EPHYAR_FLAG 0x80000000
#define EPHYAR_WRITE_CMD 0x80000000
#define EPHYAR_REG_MASK 0x1f
#define EPHYAR_REG_SHIFT 16
#define EPHYAR_DATA_MASK 0xffff
DLLPR = 0xd0,
#define PFM_EN (1 << 6)
DBG_REG = 0xd1,
#define FIX_NAK_1 (1 << 4)
#define FIX_NAK_2 (1 << 3)
TWSI = 0xd2,
MCU = 0xd3,
#define NOW_IS_OOB (1 << 7)
#define TX_EMPTY (1 << 5)
#define RX_EMPTY (1 << 4)
#define RXTX_EMPTY (TX_EMPTY | RX_EMPTY)
#define EN_NDP (1 << 3)
#define EN_OOB_RESET (1 << 2)
#define LINK_LIST_RDY (1 << 1)
EFUSEAR = 0xdc,
#define EFUSEAR_FLAG 0x80000000
#define EFUSEAR_WRITE_CMD 0x80000000
#define EFUSEAR_READ_CMD 0x00000000
#define EFUSEAR_REG_MASK 0x03ff
#define EFUSEAR_REG_SHIFT 8
#define EFUSEAR_DATA_MASK 0xff
};
enum rtl8168_registers {
LED_FREQ = 0x1a,
EEE_LED = 0x1b,
ERIDR = 0x70,
ERIAR = 0x74,
#define ERIAR_FLAG 0x80000000
#define ERIAR_WRITE_CMD 0x80000000
#define ERIAR_READ_CMD 0x00000000
#define ERIAR_ADDR_BYTE_ALIGN 4
#define ERIAR_TYPE_SHIFT 16
#define ERIAR_EXGMAC (0x00 << ERIAR_TYPE_SHIFT)
#define ERIAR_MSIX (0x01 << ERIAR_TYPE_SHIFT)
#define ERIAR_ASF (0x02 << ERIAR_TYPE_SHIFT)
#define ERIAR_MASK_SHIFT 12
#define ERIAR_MASK_0001 (0x1 << ERIAR_MASK_SHIFT)
#define ERIAR_MASK_0011 (0x3 << ERIAR_MASK_SHIFT)
#define ERIAR_MASK_0101 (0x5 << ERIAR_MASK_SHIFT)
#define ERIAR_MASK_1111 (0xf << ERIAR_MASK_SHIFT)
EPHY_RXER_NUM = 0x7c,
OCPDR = 0xb0, /* OCP GPHY access */
#define OCPDR_WRITE_CMD 0x80000000
#define OCPDR_READ_CMD 0x00000000
#define OCPDR_REG_MASK 0x7f
#define OCPDR_GPHY_REG_SHIFT 16
#define OCPDR_DATA_MASK 0xffff
OCPAR = 0xb4,
#define OCPAR_FLAG 0x80000000
#define OCPAR_GPHY_WRITE_CMD 0x8000f060
#define OCPAR_GPHY_READ_CMD 0x0000f060
GPHY_OCP = 0xb8,
RDSAR1 = 0xd0, /* 8168c only. Undocumented on 8168dp */
MISC = 0xf0, /* 8168e only. */
#define TXPLA_RST (1 << 29)
#define DISABLE_LAN_EN (1 << 23) /* Enable GPIO pin */
#define PWM_EN (1 << 22)
#define RXDV_GATED_EN (1 << 19)
#define EARLY_TALLY_EN (1 << 16)
};
enum rtl_register_content {
/* InterruptStatusBits */
SYSErr = 0x8000,
PCSTimeout = 0x4000,
SWInt = 0x0100,
TxDescUnavail = 0x0080,
RxFIFOOver = 0x0040,
LinkChg = 0x0020,
RxOverflow = 0x0010,
TxErr = 0x0008,
TxOK = 0x0004,
RxErr = 0x0002,
RxOK = 0x0001,
/* RxStatusDesc */
RxBOVF = (1 << 24),
RxFOVF = (1 << 23),
RxRWT = (1 << 22),
RxRES = (1 << 21),
RxRUNT = (1 << 20),
RxCRC = (1 << 19),
/* ChipCmdBits */
StopReq = 0x80,
CmdReset = 0x10,
CmdRxEnb = 0x08,
CmdTxEnb = 0x04,
RxBufEmpty = 0x01,
/* TXPoll register p.5 */
HPQ = 0x80, /* Poll cmd on the high prio queue */
NPQ = 0x40, /* Poll cmd on the low prio queue */
FSWInt = 0x01, /* Forced software interrupt */
/* Cfg9346Bits */
Cfg9346_Lock = 0x00,
Cfg9346_Unlock = 0xc0,
/* rx_mode_bits */
AcceptErr = 0x20,
AcceptRunt = 0x10,
AcceptBroadcast = 0x08,
AcceptMulticast = 0x04,
AcceptMyPhys = 0x02,
AcceptAllPhys = 0x01,
#define RX_CONFIG_ACCEPT_MASK 0x3f
/* TxConfigBits */
TxInterFrameGapShift = 24,
TxDMAShift = 8, /* DMA burst value (0-7) is shift this many bits */
/* Config1 register p.24 */
LEDS1 = (1 << 7),
LEDS0 = (1 << 6),
Speed_down = (1 << 4),
MEMMAP = (1 << 3),
IOMAP = (1 << 2),
VPD = (1 << 1),
PMEnable = (1 << 0), /* Power Management Enable */
/* Config2 register p. 25 */
MSIEnable = (1 << 5), /* 8169 only. Reserved in the 8168. */
PCI_Clock_66MHz = 0x01,
PCI_Clock_33MHz = 0x00,
/* Config3 register p.25 */
MagicPacket = (1 << 5), /* Wake up when receives a Magic Packet */
LinkUp = (1 << 4), /* Wake up when the cable connection is re-established */
Jumbo_En0 = (1 << 2), /* 8168 only. Reserved in the 8168b */
Beacon_en = (1 << 0), /* 8168 only. Reserved in the 8168b */
/* Config4 register */
Jumbo_En1 = (1 << 1), /* 8168 only. Reserved in the 8168b */
/* Config5 register p.27 */
BWF = (1 << 6), /* Accept Broadcast wakeup frame */
MWF = (1 << 5), /* Accept Multicast wakeup frame */
UWF = (1 << 4), /* Accept Unicast wakeup frame */
Spi_en = (1 << 3),
LanWake = (1 << 1), /* LanWake enable/disable */
PMEStatus = (1 << 0), /* PME status can be reset by PCI RST# */
/* TBICSR p.28 */
TBIReset = 0x80000000,
TBILoopback = 0x40000000,
TBINwEnable = 0x20000000,
TBINwRestart = 0x10000000,
TBILinkOk = 0x02000000,
TBINwComplete = 0x01000000,
/* CPlusCmd p.31 */
EnableBist = (1 << 15), // 8168 8101
Mac_dbgo_oe = (1 << 14), // 8168 8101
Normal_mode = (1 << 13), // unused
Force_half_dup = (1 << 12), // 8168 8101
Force_rxflow_en = (1 << 11), // 8168 8101
Force_txflow_en = (1 << 10), // 8168 8101
Cxpl_dbg_sel = (1 << 9), // 8168 8101
ASF = (1 << 8), // 8168 8101
PktCntrDisable = (1 << 7), // 8168 8101
Mac_dbgo_sel = 0x001c, // 8168
RxVlan = (1 << 6),
RxChkSum = (1 << 5),
PCIDAC = (1 << 4),
PCIMulRW = (1 << 3),
INTT_0 = 0x0000, // 8168
INTT_1 = 0x0001, // 8168
INTT_2 = 0x0002, // 8168
INTT_3 = 0x0003, // 8168
/* rtl8169_PHYstatus */
TBI_Enable = 0x80,
TxFlowCtrl = 0x40,
RxFlowCtrl = 0x20,
_1000bpsF = 0x10,
_100bps = 0x08,
_10bps = 0x04,
LinkStatus = 0x02,
FullDup = 0x01,
/* _TBICSRBit */
TBILinkOK = 0x02000000,
/* DumpCounterCommand */
CounterDump = 0x8,
};
enum rtl_desc_bit {
/* First doubleword. */
DescOwn = (1 << 31), /* Descriptor is owned by NIC */
RingEnd = (1 << 30), /* End of descriptor ring */
FirstFrag = (1 << 29), /* First segment of a packet */
LastFrag = (1 << 28), /* Final segment of a packet */
};
/* Generic case. */
enum rtl_tx_desc_bit {
/* First doubleword. */
TD_LSO = (1 << 27), /* Large Send Offload */
#define TD_MSS_MAX 0x07ffu /* MSS value */
/* Second doubleword. */
TxVlanTag = (1 << 17), /* Add VLAN tag */
};
/* 8169, 8168b and 810x except 8102e. */
enum rtl_tx_desc_bit_0 {
/* First doubleword. */
#define TD0_MSS_SHIFT 16 /* MSS position (11 bits) */
TD0_TCP_CS = (1 << 16), /* Calculate TCP/IP checksum */
TD0_UDP_CS = (1 << 17), /* Calculate UDP/IP checksum */
TD0_IP_CS = (1 << 18), /* Calculate IP checksum */
};
/* 8102e, 8168c and beyond. */
enum rtl_tx_desc_bit_1 {
/* Second doubleword. */
#define TD1_MSS_SHIFT 18 /* MSS position (11 bits) */
TD1_IP_CS = (1 << 29), /* Calculate IP checksum */
TD1_TCP_CS = (1 << 30), /* Calculate TCP/IP checksum */
TD1_UDP_CS = (1 << 31), /* Calculate UDP/IP checksum */
};
static const struct rtl_tx_desc_info {
struct {
u32 udp;
u32 tcp;
} checksum;
u16 mss_shift;
u16 opts_offset;
} tx_desc_info [] = {
[RTL_TD_0] = {
.checksum = {
.udp = TD0_IP_CS | TD0_UDP_CS,
.tcp = TD0_IP_CS | TD0_TCP_CS
},
.mss_shift = TD0_MSS_SHIFT,
.opts_offset = 0
},
[RTL_TD_1] = {
.checksum = {
.udp = TD1_IP_CS | TD1_UDP_CS,
.tcp = TD1_IP_CS | TD1_TCP_CS
},
.mss_shift = TD1_MSS_SHIFT,
.opts_offset = 1
}
};
enum rtl_rx_desc_bit {
/* Rx private */
PID1 = (1 << 18), /* Protocol ID bit 1/2 */
PID0 = (1 << 17), /* Protocol ID bit 2/2 */
#define RxProtoUDP (PID1)
#define RxProtoTCP (PID0)
#define RxProtoIP (PID1 | PID0)
#define RxProtoMask RxProtoIP
IPFail = (1 << 16), /* IP checksum failed */
UDPFail = (1 << 15), /* UDP/IP checksum failed */
TCPFail = (1 << 14), /* TCP/IP checksum failed */
RxVlanTag = (1 << 16), /* VLAN tag available */
};
#define RsvdMask 0x3fffc000
struct TxDesc {
__le32 opts1;
__le32 opts2;
__le64 addr;
};
struct RxDesc {
__le32 opts1;
__le32 opts2;
__le64 addr;
};
struct ring_info {
struct sk_buff *skb;
u32 len;
u8 __pad[sizeof(void *) - sizeof(u32)];
};
enum features {
RTL_FEATURE_WOL = (1 << 0),
RTL_FEATURE_MSI = (1 << 1),
RTL_FEATURE_GMII = (1 << 2),
};
struct rtl8169_counters {
__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_underun;
};
enum rtl_flag {
RTL_FLAG_TASK_ENABLED,
RTL_FLAG_TASK_SLOW_PENDING,
RTL_FLAG_TASK_RESET_PENDING,
RTL_FLAG_TASK_PHY_PENDING,
RTL_FLAG_MAX
};
struct rtl8169_stats {
u64 packets;
u64 bytes;
struct u64_stats_sync syncp;
};
struct rtl8169_private {
void __iomem *mmio_addr; /* memory map physical address */
struct pci_dev *pci_dev;
struct net_device *dev;
struct napi_struct napi;
u32 msg_enable;
u16 txd_version;
u16 mac_version;
u32 cur_rx; /* Index into the Rx descriptor buffer of next Rx pkt. */
u32 cur_tx; /* Index into the Tx descriptor buffer of next Rx pkt. */
u32 dirty_rx;
u32 dirty_tx;
struct rtl8169_stats rx_stats;
struct rtl8169_stats tx_stats;
struct TxDesc *TxDescArray; /* 256-aligned Tx descriptor ring */
struct RxDesc *RxDescArray; /* 256-aligned Rx descriptor ring */
dma_addr_t TxPhyAddr;
dma_addr_t RxPhyAddr;
void *Rx_databuff[NUM_RX_DESC]; /* Rx data buffers */
struct ring_info tx_skb[NUM_TX_DESC]; /* Tx data buffers */
struct timer_list timer;
u16 cp_cmd;
u16 event_slow;
struct mdio_ops {
void (*write)(struct rtl8169_private *, int, int);
int (*read)(struct rtl8169_private *, int);
} mdio_ops;
struct pll_power_ops {
void (*down)(struct rtl8169_private *);
void (*up)(struct rtl8169_private *);
} pll_power_ops;
struct jumbo_ops {
void (*enable)(struct rtl8169_private *);
void (*disable)(struct rtl8169_private *);
} jumbo_ops;
struct csi_ops {
void (*write)(struct rtl8169_private *, int, int);
u32 (*read)(struct rtl8169_private *, int);
} csi_ops;
int (*set_speed)(struct net_device *, u8 aneg, u16 sp, u8 dpx, u32 adv);
int (*get_settings)(struct net_device *, struct ethtool_cmd *);
void (*phy_reset_enable)(struct rtl8169_private *tp);
void (*hw_start)(struct net_device *);
unsigned int (*phy_reset_pending)(struct rtl8169_private *tp);
unsigned int (*link_ok)(void __iomem *);
int (*do_ioctl)(struct rtl8169_private *tp, struct mii_ioctl_data *data, int cmd);
struct {
DECLARE_BITMAP(flags, RTL_FLAG_MAX);
struct mutex mutex;
struct work_struct work;
} wk;
unsigned features;
struct mii_if_info mii;
struct rtl8169_counters counters;
u32 saved_wolopts;
u32 opts1_mask;
struct rtl_fw {
const struct firmware *fw;
#define RTL_VER_SIZE 32
char version[RTL_VER_SIZE];
struct rtl_fw_phy_action {
__le32 *code;
size_t size;
} phy_action;
} *rtl_fw;
#define RTL_FIRMWARE_UNKNOWN ERR_PTR(-EAGAIN)
ec_device_t *ecdev;
unsigned long ec_watchdog_jiffies;
u32 ocp_base;
};
MODULE_AUTHOR("Realtek and the Linux r8169 crew <[email protected]>");
MODULE_DESCRIPTION("RealTek RTL-8169 Gigabit Ethernet driver (EtherCAT)");
module_param(use_dac, int, 0);
MODULE_PARM_DESC(use_dac, "Enable PCI DAC. Unsafe on 32 bit PCI slot.");
module_param_named(debug, debug.msg_enable, int, 0);
MODULE_PARM_DESC(debug, "Debug verbosity level (0=none, ..., 16=all)");
MODULE_LICENSE("GPL");
MODULE_VERSION(EC_MASTER_VERSION);
MODULE_FIRMWARE(FIRMWARE_8168D_1);
MODULE_FIRMWARE(FIRMWARE_8168D_2);
MODULE_FIRMWARE(FIRMWARE_8168E_1);
MODULE_FIRMWARE(FIRMWARE_8168E_2);
MODULE_FIRMWARE(FIRMWARE_8168E_3);
MODULE_FIRMWARE(FIRMWARE_8105E_1);
MODULE_FIRMWARE(FIRMWARE_8168F_1);
MODULE_FIRMWARE(FIRMWARE_8168F_2);
MODULE_FIRMWARE(FIRMWARE_8402_1);
MODULE_FIRMWARE(FIRMWARE_8411_1);
MODULE_FIRMWARE(FIRMWARE_8106E_1);
MODULE_FIRMWARE(FIRMWARE_8168G_1);
static void rtl_lock_work(struct rtl8169_private *tp)
{
mutex_lock(&tp->wk.mutex);
}
static void rtl_unlock_work(struct rtl8169_private *tp)
{
mutex_unlock(&tp->wk.mutex);
}
static void rtl_tx_performance_tweak(struct pci_dev *pdev, u16 force)
{
pcie_capability_clear_and_set_word(pdev, PCI_EXP_DEVCTL,
PCI_EXP_DEVCTL_READRQ, force);
}
struct rtl_cond {
bool (*check)(struct rtl8169_private *);
const char *msg;
};
static void rtl_udelay(unsigned int d)
{
udelay(d);
}
static bool rtl_loop_wait(struct rtl8169_private *tp, const struct rtl_cond *c,
void (*delay)(unsigned int), unsigned int d, int n,
bool high)
{
int i;
for (i = 0; i < n; i++) {
delay(d);
if (c->check(tp) == high)
return true;
}
netif_err(tp, drv, tp->dev, "%s == %d (loop: %d, delay: %d).\n",
c->msg, !high, n, d);
return false;
}
static bool rtl_udelay_loop_wait_high(struct rtl8169_private *tp,
const struct rtl_cond *c,
unsigned int d, int n)
{
return rtl_loop_wait(tp, c, rtl_udelay, d, n, true);
}
static bool rtl_udelay_loop_wait_low(struct rtl8169_private *tp,
const struct rtl_cond *c,
unsigned int d, int n)
{
return rtl_loop_wait(tp, c, rtl_udelay, d, n, false);
}
static bool rtl_msleep_loop_wait_high(struct rtl8169_private *tp,
const struct rtl_cond *c,
unsigned int d, int n)
{
return rtl_loop_wait(tp, c, msleep, d, n, true);
}
static bool rtl_msleep_loop_wait_low(struct rtl8169_private *tp,
const struct rtl_cond *c,
unsigned int d, int n)
{
return rtl_loop_wait(tp, c, msleep, d, n, false);
}
#define DECLARE_RTL_COND(name) \
static bool name ## _check(struct rtl8169_private *); \
\
static const struct rtl_cond name = { \
.check = name ## _check, \
.msg = #name \
}; \
\
static bool name ## _check(struct rtl8169_private *tp)
DECLARE_RTL_COND(rtl_ocpar_cond)
{
void __iomem *ioaddr = tp->mmio_addr;
return RTL_R32(OCPAR) & OCPAR_FLAG;
}
static u32 ocp_read(struct rtl8169_private *tp, u8 mask, u16 reg)
{
void __iomem *ioaddr = tp->mmio_addr;
RTL_W32(OCPAR, ((u32)mask & 0x0f) << 12 | (reg & 0x0fff));
return rtl_udelay_loop_wait_high(tp, &rtl_ocpar_cond, 100, 20) ?
RTL_R32(OCPDR) : ~0;
}
static void ocp_write(struct rtl8169_private *tp, u8 mask, u16 reg, u32 data)
{
void __iomem *ioaddr = tp->mmio_addr;
RTL_W32(OCPDR, data);
RTL_W32(OCPAR, OCPAR_FLAG | ((u32)mask & 0x0f) << 12 | (reg & 0x0fff));
rtl_udelay_loop_wait_low(tp, &rtl_ocpar_cond, 100, 20);
}
DECLARE_RTL_COND(rtl_eriar_cond)
{
void __iomem *ioaddr = tp->mmio_addr;
return RTL_R32(ERIAR) & ERIAR_FLAG;
}
static void rtl8168_oob_notify(struct rtl8169_private *tp, u8 cmd)
{
void __iomem *ioaddr = tp->mmio_addr;
RTL_W8(ERIDR, cmd);
RTL_W32(ERIAR, 0x800010e8);
msleep(2);
if (!rtl_udelay_loop_wait_low(tp, &rtl_eriar_cond, 100, 5))
return;
ocp_write(tp, 0x1, 0x30, 0x00000001);
}
#define OOB_CMD_RESET 0x00
#define OOB_CMD_DRIVER_START 0x05
#define OOB_CMD_DRIVER_STOP 0x06
static u16 rtl8168_get_ocp_reg(struct rtl8169_private *tp)
{
return (tp->mac_version == RTL_GIGA_MAC_VER_31) ? 0xb8 : 0x10;
}
DECLARE_RTL_COND(rtl_ocp_read_cond)
{
u16 reg;
reg = rtl8168_get_ocp_reg(tp);
return ocp_read(tp, 0x0f, reg) & 0x00000800;
}
static void rtl8168_driver_start(struct rtl8169_private *tp)
{
rtl8168_oob_notify(tp, OOB_CMD_DRIVER_START);
rtl_msleep_loop_wait_high(tp, &rtl_ocp_read_cond, 10, 10);
}
static void rtl8168_driver_stop(struct rtl8169_private *tp)
{
rtl8168_oob_notify(tp, OOB_CMD_DRIVER_STOP);
rtl_msleep_loop_wait_low(tp, &rtl_ocp_read_cond, 10, 10);
}
static int r8168dp_check_dash(struct rtl8169_private *tp)
{
u16 reg = rtl8168_get_ocp_reg(tp);
return (ocp_read(tp, 0x0f, reg) & 0x00008000) ? 1 : 0;
}
static bool rtl_ocp_reg_failure(struct rtl8169_private *tp, u32 reg)
{