7da97ec96a
Realtek's r8168 driver version 8.003.00 adds new init sequences (they do not appear in version 8.002.00). Signed-off-by: Francois Romieu <romieu@fr.zoreil.com> Cc: Edward Hsu <edward_hsu@realtek.com.tw>
3219 lines
80 KiB
C
3219 lines
80 KiB
C
/*
|
|
* r8169.c: RealTek 8169/8168/8101 ethernet driver.
|
|
*
|
|
* Copyright (c) 2002 ShuChen <shuchen@realtek.com.tw>
|
|
* Copyright (c) 2003 - 2007 Francois Romieu <romieu@fr.zoreil.com>
|
|
* 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/dma-mapping.h>
|
|
|
|
#include <asm/system.h>
|
|
#include <asm/io.h>
|
|
#include <asm/irq.h>
|
|
|
|
#ifdef CONFIG_R8169_NAPI
|
|
#define NAPI_SUFFIX "-NAPI"
|
|
#else
|
|
#define NAPI_SUFFIX ""
|
|
#endif
|
|
|
|
#define RTL8169_VERSION "2.2LK" NAPI_SUFFIX
|
|
#define MODULENAME "r8169"
|
|
#define PFX MODULENAME ": "
|
|
|
|
#ifdef RTL8169_DEBUG
|
|
#define assert(expr) \
|
|
if (!(expr)) { \
|
|
printk( "Assertion failed! %s,%s,%s,line=%d\n", \
|
|
#expr,__FILE__,__FUNCTION__,__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_BUFFS_AVAIL(tp) \
|
|
(tp->dirty_tx + NUM_TX_DESC - tp->cur_tx - 1)
|
|
|
|
#ifdef CONFIG_R8169_NAPI
|
|
#define rtl8169_rx_skb netif_receive_skb
|
|
#define rtl8169_rx_hwaccel_skb vlan_hwaccel_receive_skb
|
|
#define rtl8169_rx_quota(count, quota) min(count, quota)
|
|
#else
|
|
#define rtl8169_rx_skb netif_rx
|
|
#define rtl8169_rx_hwaccel_skb vlan_hwaccel_rx
|
|
#define rtl8169_rx_quota(count, quota) count
|
|
#endif
|
|
|
|
/* Maximum events (Rx packets, etc.) to handle at each interrupt. */
|
|
static const int max_interrupt_work = 20;
|
|
|
|
/* 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;
|
|
|
|
/* MAC address length */
|
|
#define MAC_ADDR_LEN 6
|
|
|
|
#define RX_FIFO_THRESH 7 /* 7 means NO threshold, Rx buffer level before first PCI xfer. */
|
|
#define RX_DMA_BURST 6 /* Maximum PCI burst, '6' is 1024 */
|
|
#define TX_DMA_BURST 6 /* Maximum PCI burst, '6' is 1024 */
|
|
#define EarlyTxThld 0x3F /* 0x3F means NO early transmit */
|
|
#define RxPacketMaxSize 0x3FE8 /* 16K - 1 - ETH_HLEN - VLAN - CRC... */
|
|
#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)
|
|
|
|
/* 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) ((unsigned long) readl (ioaddr + (reg)))
|
|
|
|
enum mac_version {
|
|
RTL_GIGA_MAC_VER_01 = 0x01, // 8169
|
|
RTL_GIGA_MAC_VER_02 = 0x02, // 8169S
|
|
RTL_GIGA_MAC_VER_03 = 0x03, // 8110S
|
|
RTL_GIGA_MAC_VER_04 = 0x04, // 8169SB
|
|
RTL_GIGA_MAC_VER_05 = 0x05, // 8110SCd
|
|
RTL_GIGA_MAC_VER_06 = 0x06, // 8110SCe
|
|
RTL_GIGA_MAC_VER_11 = 0x0b, // 8168Bb
|
|
RTL_GIGA_MAC_VER_12 = 0x0c, // 8168Be
|
|
RTL_GIGA_MAC_VER_13 = 0x0d, // 8101Eb
|
|
RTL_GIGA_MAC_VER_14 = 0x0e, // 8101 ?
|
|
RTL_GIGA_MAC_VER_15 = 0x0f, // 8101 ?
|
|
RTL_GIGA_MAC_VER_16 = 0x11, // 8101Ec
|
|
RTL_GIGA_MAC_VER_17 = 0x10, // 8168Bf
|
|
RTL_GIGA_MAC_VER_18 = 0x12, // 8168CP
|
|
RTL_GIGA_MAC_VER_19 = 0x13, // 8168C
|
|
RTL_GIGA_MAC_VER_20 = 0x14 // 8168C
|
|
};
|
|
|
|
#define _R(NAME,MAC,MASK) \
|
|
{ .name = NAME, .mac_version = MAC, .RxConfigMask = MASK }
|
|
|
|
static const struct {
|
|
const char *name;
|
|
u8 mac_version;
|
|
u32 RxConfigMask; /* Clears the bits supported by this chip */
|
|
} rtl_chip_info[] = {
|
|
_R("RTL8169", RTL_GIGA_MAC_VER_01, 0xff7e1880), // 8169
|
|
_R("RTL8169s", RTL_GIGA_MAC_VER_02, 0xff7e1880), // 8169S
|
|
_R("RTL8110s", RTL_GIGA_MAC_VER_03, 0xff7e1880), // 8110S
|
|
_R("RTL8169sb/8110sb", RTL_GIGA_MAC_VER_04, 0xff7e1880), // 8169SB
|
|
_R("RTL8169sc/8110sc", RTL_GIGA_MAC_VER_05, 0xff7e1880), // 8110SCd
|
|
_R("RTL8169sc/8110sc", RTL_GIGA_MAC_VER_06, 0xff7e1880), // 8110SCe
|
|
_R("RTL8168b/8111b", RTL_GIGA_MAC_VER_11, 0xff7e1880), // PCI-E
|
|
_R("RTL8168b/8111b", RTL_GIGA_MAC_VER_12, 0xff7e1880), // PCI-E
|
|
_R("RTL8101e", RTL_GIGA_MAC_VER_13, 0xff7e1880), // PCI-E 8139
|
|
_R("RTL8100e", RTL_GIGA_MAC_VER_14, 0xff7e1880), // PCI-E 8139
|
|
_R("RTL8100e", RTL_GIGA_MAC_VER_15, 0xff7e1880), // PCI-E 8139
|
|
_R("RTL8168b/8111b", RTL_GIGA_MAC_VER_17, 0xff7e1880), // PCI-E
|
|
_R("RTL8101e", RTL_GIGA_MAC_VER_16, 0xff7e1880), // PCI-E
|
|
_R("RTL8168cp/8111cp", RTL_GIGA_MAC_VER_18, 0xff7e1880), // PCI-E
|
|
_R("RTL8168c/8111c", RTL_GIGA_MAC_VER_19, 0xff7e1880), // PCI-E
|
|
_R("RTL8168c/8111c", RTL_GIGA_MAC_VER_20, 0xff7e1880) // PCI-E
|
|
};
|
|
#undef _R
|
|
|
|
enum cfg_version {
|
|
RTL_CFG_0 = 0x00,
|
|
RTL_CFG_1,
|
|
RTL_CFG_2
|
|
};
|
|
|
|
static void rtl_hw_start_8169(struct net_device *);
|
|
static void rtl_hw_start_8168(struct net_device *);
|
|
static void rtl_hw_start_8101(struct net_device *);
|
|
|
|
static struct pci_device_id 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_DEVICE(PCI_VENDOR_ID_DLINK, 0x4300), 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 },
|
|
{0,},
|
|
};
|
|
|
|
MODULE_DEVICE_TABLE(pci, rtl8169_pci_tbl);
|
|
|
|
static int rx_copybreak = 200;
|
|
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,
|
|
RxConfig = 0x44,
|
|
RxMissed = 0x4c,
|
|
Cfg9346 = 0x50,
|
|
Config0 = 0x51,
|
|
Config1 = 0x52,
|
|
Config2 = 0x53,
|
|
Config3 = 0x54,
|
|
Config4 = 0x55,
|
|
Config5 = 0x56,
|
|
MultiIntr = 0x5c,
|
|
PHYAR = 0x60,
|
|
TBICSR = 0x64,
|
|
TBI_ANAR = 0x68,
|
|
TBI_LPAR = 0x6a,
|
|
PHYstatus = 0x6c,
|
|
RxMaxSize = 0xda,
|
|
CPlusCmd = 0xe0,
|
|
IntrMitigate = 0xe2,
|
|
RxDescAddrLow = 0xe4,
|
|
RxDescAddrHigh = 0xe8,
|
|
EarlyTxThres = 0xec,
|
|
FuncEvent = 0xf0,
|
|
FuncEventMask = 0xf4,
|
|
FuncPresetState = 0xf8,
|
|
FuncForceEvent = 0xfc,
|
|
};
|
|
|
|
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 */
|
|
RxFOVF = (1 << 23),
|
|
RxRWT = (1 << 22),
|
|
RxRES = (1 << 21),
|
|
RxRUNT = (1 << 20),
|
|
RxCRC = (1 << 19),
|
|
|
|
/* ChipCmdBits */
|
|
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,
|
|
|
|
/* RxConfigBits */
|
|
RxCfgFIFOShift = 13,
|
|
RxCfgDMAShift = 8,
|
|
|
|
/* TxConfigBits */
|
|
TxInterFrameGapShift = 24,
|
|
TxDMAShift = 8, /* DMA burst value (0-7) is shift this many bits */
|
|
|
|
/* Config1 register p.24 */
|
|
MSIEnable = (1 << 5), /* Enable Message Signaled Interrupt */
|
|
PMEnable = (1 << 0), /* Power Management Enable */
|
|
|
|
/* Config2 register p. 25 */
|
|
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 */
|
|
|
|
/* 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 */
|
|
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 */
|
|
PktCntrDisable = (1 << 7), // 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 desc_status_bit {
|
|
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 */
|
|
|
|
/* Tx private */
|
|
LargeSend = (1 << 27), /* TCP Large Send Offload (TSO) */
|
|
MSSShift = 16, /* MSS value position */
|
|
MSSMask = 0xfff, /* MSS value + LargeSend bit: 12 bits */
|
|
IPCS = (1 << 18), /* Calculate IP checksum */
|
|
UDPCS = (1 << 17), /* Calculate UDP/IP checksum */
|
|
TCPCS = (1 << 16), /* Calculate TCP/IP checksum */
|
|
TxVlanTag = (1 << 17), /* Add VLAN tag */
|
|
|
|
/* 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),
|
|
};
|
|
|
|
struct rtl8169_private {
|
|
void __iomem *mmio_addr; /* memory map physical address */
|
|
struct pci_dev *pci_dev; /* Index of PCI device */
|
|
struct net_device *dev;
|
|
struct napi_struct napi;
|
|
spinlock_t lock; /* spin lock flag */
|
|
u32 msg_enable;
|
|
int chipset;
|
|
int 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 TxDesc *TxDescArray; /* 256-aligned Tx descriptor ring */
|
|
struct RxDesc *RxDescArray; /* 256-aligned Rx descriptor ring */
|
|
dma_addr_t TxPhyAddr;
|
|
dma_addr_t RxPhyAddr;
|
|
struct sk_buff *Rx_skbuff[NUM_RX_DESC]; /* Rx data buffers */
|
|
struct ring_info tx_skb[NUM_TX_DESC]; /* Tx data buffers */
|
|
unsigned align;
|
|
unsigned rx_buf_sz;
|
|
struct timer_list timer;
|
|
u16 cp_cmd;
|
|
u16 intr_event;
|
|
u16 napi_event;
|
|
u16 intr_mask;
|
|
int phy_auto_nego_reg;
|
|
int phy_1000_ctrl_reg;
|
|
#ifdef CONFIG_R8169_VLAN
|
|
struct vlan_group *vlgrp;
|
|
#endif
|
|
int (*set_speed)(struct net_device *, u8 autoneg, u16 speed, u8 duplex);
|
|
void (*get_settings)(struct net_device *, struct ethtool_cmd *);
|
|
void (*phy_reset_enable)(void __iomem *);
|
|
void (*hw_start)(struct net_device *);
|
|
unsigned int (*phy_reset_pending)(void __iomem *);
|
|
unsigned int (*link_ok)(void __iomem *);
|
|
struct delayed_work task;
|
|
unsigned features;
|
|
};
|
|
|
|
MODULE_AUTHOR("Realtek and the Linux r8169 crew <netdev@vger.kernel.org>");
|
|
MODULE_DESCRIPTION("RealTek RTL-8169 Gigabit Ethernet driver");
|
|
module_param(rx_copybreak, int, 0);
|
|
MODULE_PARM_DESC(rx_copybreak, "Copy breakpoint for copy-only-tiny-frames");
|
|
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(RTL8169_VERSION);
|
|
|
|
static int rtl8169_open(struct net_device *dev);
|
|
static int rtl8169_start_xmit(struct sk_buff *skb, struct net_device *dev);
|
|
static irqreturn_t rtl8169_interrupt(int irq, void *dev_instance);
|
|
static int rtl8169_init_ring(struct net_device *dev);
|
|
static void rtl_hw_start(struct net_device *dev);
|
|
static int rtl8169_close(struct net_device *dev);
|
|
static void rtl_set_rx_mode(struct net_device *dev);
|
|
static void rtl8169_tx_timeout(struct net_device *dev);
|
|
static struct net_device_stats *rtl8169_get_stats(struct net_device *dev);
|
|
static int rtl8169_rx_interrupt(struct net_device *, struct rtl8169_private *,
|
|
void __iomem *, u32 budget);
|
|
static int rtl8169_change_mtu(struct net_device *dev, int new_mtu);
|
|
static void rtl8169_down(struct net_device *dev);
|
|
static void rtl8169_rx_clear(struct rtl8169_private *tp);
|
|
|
|
#ifdef CONFIG_R8169_NAPI
|
|
static int rtl8169_poll(struct napi_struct *napi, int budget);
|
|
#endif
|
|
|
|
static const unsigned int rtl8169_rx_config =
|
|
(RX_FIFO_THRESH << RxCfgFIFOShift) | (RX_DMA_BURST << RxCfgDMAShift);
|
|
|
|
static void mdio_write(void __iomem *ioaddr, int reg_addr, int value)
|
|
{
|
|
int i;
|
|
|
|
RTL_W32(PHYAR, 0x80000000 | (reg_addr & 0xFF) << 16 | value);
|
|
|
|
for (i = 20; i > 0; i--) {
|
|
/*
|
|
* Check if the RTL8169 has completed writing to the specified
|
|
* MII register.
|
|
*/
|
|
if (!(RTL_R32(PHYAR) & 0x80000000))
|
|
break;
|
|
udelay(25);
|
|
}
|
|
}
|
|
|
|
static int mdio_read(void __iomem *ioaddr, int reg_addr)
|
|
{
|
|
int i, value = -1;
|
|
|
|
RTL_W32(PHYAR, 0x0 | (reg_addr & 0xFF) << 16);
|
|
|
|
for (i = 20; i > 0; i--) {
|
|
/*
|
|
* Check if the RTL8169 has completed retrieving data from
|
|
* the specified MII register.
|
|
*/
|
|
if (RTL_R32(PHYAR) & 0x80000000) {
|
|
value = (int) (RTL_R32(PHYAR) & 0xFFFF);
|
|
break;
|
|
}
|
|
udelay(25);
|
|
}
|
|
return value;
|
|
}
|
|
|
|
static void rtl8169_irq_mask_and_ack(void __iomem *ioaddr)
|
|
{
|
|
RTL_W16(IntrMask, 0x0000);
|
|
|
|
RTL_W16(IntrStatus, 0xffff);
|
|
}
|
|
|
|
static void rtl8169_asic_down(void __iomem *ioaddr)
|
|
{
|
|
RTL_W8(ChipCmd, 0x00);
|
|
rtl8169_irq_mask_and_ack(ioaddr);
|
|
RTL_R16(CPlusCmd);
|
|
}
|
|
|
|
static unsigned int rtl8169_tbi_reset_pending(void __iomem *ioaddr)
|
|
{
|
|
return RTL_R32(TBICSR) & TBIReset;
|
|
}
|
|
|
|
static unsigned int rtl8169_xmii_reset_pending(void __iomem *ioaddr)
|
|
{
|
|
return mdio_read(ioaddr, MII_BMCR) & BMCR_RESET;
|
|
}
|
|
|
|
static unsigned int rtl8169_tbi_link_ok(void __iomem *ioaddr)
|
|
{
|
|
return RTL_R32(TBICSR) & TBILinkOk;
|
|
}
|
|
|
|
static unsigned int rtl8169_xmii_link_ok(void __iomem *ioaddr)
|
|
{
|
|
return RTL_R8(PHYstatus) & LinkStatus;
|
|
}
|
|
|
|
static void rtl8169_tbi_reset_enable(void __iomem *ioaddr)
|
|
{
|
|
RTL_W32(TBICSR, RTL_R32(TBICSR) | TBIReset);
|
|
}
|
|
|
|
static void rtl8169_xmii_reset_enable(void __iomem *ioaddr)
|
|
{
|
|
unsigned int val;
|
|
|
|
val = mdio_read(ioaddr, MII_BMCR) | BMCR_RESET;
|
|
mdio_write(ioaddr, MII_BMCR, val & 0xffff);
|
|
}
|
|
|
|
static void rtl8169_check_link_status(struct net_device *dev,
|
|
struct rtl8169_private *tp,
|
|
void __iomem *ioaddr)
|
|
{
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&tp->lock, flags);
|
|
if (tp->link_ok(ioaddr)) {
|
|
netif_carrier_on(dev);
|
|
if (netif_msg_ifup(tp))
|
|
printk(KERN_INFO PFX "%s: link up\n", dev->name);
|
|
} else {
|
|
if (netif_msg_ifdown(tp))
|
|
printk(KERN_INFO PFX "%s: link down\n", dev->name);
|
|
netif_carrier_off(dev);
|
|
}
|
|
spin_unlock_irqrestore(&tp->lock, flags);
|
|
}
|
|
|
|
static void rtl8169_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
|
|
{
|
|
struct rtl8169_private *tp = netdev_priv(dev);
|
|
void __iomem *ioaddr = tp->mmio_addr;
|
|
u8 options;
|
|
|
|
wol->wolopts = 0;
|
|
|
|
#define WAKE_ANY (WAKE_PHY | WAKE_MAGIC | WAKE_UCAST | WAKE_BCAST | WAKE_MCAST)
|
|
wol->supported = WAKE_ANY;
|
|
|
|
spin_lock_irq(&tp->lock);
|
|
|
|
options = RTL_R8(Config1);
|
|
if (!(options & PMEnable))
|
|
goto out_unlock;
|
|
|
|
options = RTL_R8(Config3);
|
|
if (options & LinkUp)
|
|
wol->wolopts |= WAKE_PHY;
|
|
if (options & MagicPacket)
|
|
wol->wolopts |= WAKE_MAGIC;
|
|
|
|
options = RTL_R8(Config5);
|
|
if (options & UWF)
|
|
wol->wolopts |= WAKE_UCAST;
|
|
if (options & BWF)
|
|
wol->wolopts |= WAKE_BCAST;
|
|
if (options & MWF)
|
|
wol->wolopts |= WAKE_MCAST;
|
|
|
|
out_unlock:
|
|
spin_unlock_irq(&tp->lock);
|
|
}
|
|
|
|
static int rtl8169_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
|
|
{
|
|
struct rtl8169_private *tp = netdev_priv(dev);
|
|
void __iomem *ioaddr = tp->mmio_addr;
|
|
unsigned int i;
|
|
static struct {
|
|
u32 opt;
|
|
u16 reg;
|
|
u8 mask;
|
|
} cfg[] = {
|
|
{ WAKE_ANY, Config1, PMEnable },
|
|
{ WAKE_PHY, Config3, LinkUp },
|
|
{ WAKE_MAGIC, Config3, MagicPacket },
|
|
{ WAKE_UCAST, Config5, UWF },
|
|
{ WAKE_BCAST, Config5, BWF },
|
|
{ WAKE_MCAST, Config5, MWF },
|
|
{ WAKE_ANY, Config5, LanWake }
|
|
};
|
|
|
|
spin_lock_irq(&tp->lock);
|
|
|
|
RTL_W8(Cfg9346, Cfg9346_Unlock);
|
|
|
|
for (i = 0; i < ARRAY_SIZE(cfg); i++) {
|
|
u8 options = RTL_R8(cfg[i].reg) & ~cfg[i].mask;
|
|
if (wol->wolopts & cfg[i].opt)
|
|
options |= cfg[i].mask;
|
|
RTL_W8(cfg[i].reg, options);
|
|
}
|
|
|
|
RTL_W8(Cfg9346, Cfg9346_Lock);
|
|
|
|
if (wol->wolopts)
|
|
tp->features |= RTL_FEATURE_WOL;
|
|
else
|
|
tp->features &= ~RTL_FEATURE_WOL;
|
|
|
|
spin_unlock_irq(&tp->lock);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void rtl8169_get_drvinfo(struct net_device *dev,
|
|
struct ethtool_drvinfo *info)
|
|
{
|
|
struct rtl8169_private *tp = netdev_priv(dev);
|
|
|
|
strcpy(info->driver, MODULENAME);
|
|
strcpy(info->version, RTL8169_VERSION);
|
|
strcpy(info->bus_info, pci_name(tp->pci_dev));
|
|
}
|
|
|
|
static int rtl8169_get_regs_len(struct net_device *dev)
|
|
{
|
|
return R8169_REGS_SIZE;
|
|
}
|
|
|
|
static int rtl8169_set_speed_tbi(struct net_device *dev,
|
|
u8 autoneg, u16 speed, u8 duplex)
|
|
{
|
|
struct rtl8169_private *tp = netdev_priv(dev);
|
|
void __iomem *ioaddr = tp->mmio_addr;
|
|
int ret = 0;
|
|
u32 reg;
|
|
|
|
reg = RTL_R32(TBICSR);
|
|
if ((autoneg == AUTONEG_DISABLE) && (speed == SPEED_1000) &&
|
|
(duplex == DUPLEX_FULL)) {
|
|
RTL_W32(TBICSR, reg & ~(TBINwEnable | TBINwRestart));
|
|
} else if (autoneg == AUTONEG_ENABLE)
|
|
RTL_W32(TBICSR, reg | TBINwEnable | TBINwRestart);
|
|
else {
|
|
if (netif_msg_link(tp)) {
|
|
printk(KERN_WARNING "%s: "
|
|
"incorrect speed setting refused in TBI mode\n",
|
|
dev->name);
|
|
}
|
|
ret = -EOPNOTSUPP;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int rtl8169_set_speed_xmii(struct net_device *dev,
|
|
u8 autoneg, u16 speed, u8 duplex)
|
|
{
|
|
struct rtl8169_private *tp = netdev_priv(dev);
|
|
void __iomem *ioaddr = tp->mmio_addr;
|
|
int auto_nego, giga_ctrl;
|
|
|
|
auto_nego = mdio_read(ioaddr, MII_ADVERTISE);
|
|
auto_nego &= ~(ADVERTISE_10HALF | ADVERTISE_10FULL |
|
|
ADVERTISE_100HALF | ADVERTISE_100FULL);
|
|
giga_ctrl = mdio_read(ioaddr, MII_CTRL1000);
|
|
giga_ctrl &= ~(ADVERTISE_1000FULL | ADVERTISE_1000HALF);
|
|
|
|
if (autoneg == AUTONEG_ENABLE) {
|
|
auto_nego |= (ADVERTISE_10HALF | ADVERTISE_10FULL |
|
|
ADVERTISE_100HALF | ADVERTISE_100FULL);
|
|
giga_ctrl |= ADVERTISE_1000FULL | ADVERTISE_1000HALF;
|
|
} else {
|
|
if (speed == SPEED_10)
|
|
auto_nego |= ADVERTISE_10HALF | ADVERTISE_10FULL;
|
|
else if (speed == SPEED_100)
|
|
auto_nego |= ADVERTISE_100HALF | ADVERTISE_100FULL;
|
|
else if (speed == SPEED_1000)
|
|
giga_ctrl |= ADVERTISE_1000FULL | ADVERTISE_1000HALF;
|
|
|
|
if (duplex == DUPLEX_HALF)
|
|
auto_nego &= ~(ADVERTISE_10FULL | ADVERTISE_100FULL);
|
|
|
|
if (duplex == DUPLEX_FULL)
|
|
auto_nego &= ~(ADVERTISE_10HALF | ADVERTISE_100HALF);
|
|
|
|
/* This tweak comes straight from Realtek's driver. */
|
|
if ((speed == SPEED_100) && (duplex == DUPLEX_HALF) &&
|
|
((tp->mac_version == RTL_GIGA_MAC_VER_13) ||
|
|
(tp->mac_version == RTL_GIGA_MAC_VER_16))) {
|
|
auto_nego = ADVERTISE_100HALF | ADVERTISE_CSMA;
|
|
}
|
|
}
|
|
|
|
/* The 8100e/8101e do Fast Ethernet only. */
|
|
if ((tp->mac_version == RTL_GIGA_MAC_VER_13) ||
|
|
(tp->mac_version == RTL_GIGA_MAC_VER_14) ||
|
|
(tp->mac_version == RTL_GIGA_MAC_VER_15) ||
|
|
(tp->mac_version == RTL_GIGA_MAC_VER_16)) {
|
|
if ((giga_ctrl & (ADVERTISE_1000FULL | ADVERTISE_1000HALF)) &&
|
|
netif_msg_link(tp)) {
|
|
printk(KERN_INFO "%s: PHY does not support 1000Mbps.\n",
|
|
dev->name);
|
|
}
|
|
giga_ctrl &= ~(ADVERTISE_1000FULL | ADVERTISE_1000HALF);
|
|
}
|
|
|
|
auto_nego |= ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM;
|
|
|
|
if ((tp->mac_version == RTL_GIGA_MAC_VER_12) ||
|
|
(tp->mac_version == RTL_GIGA_MAC_VER_17)) {
|
|
/* Vendor specific (0x1f) and reserved (0x0e) MII registers. */
|
|
mdio_write(ioaddr, 0x1f, 0x0000);
|
|
mdio_write(ioaddr, 0x0e, 0x0000);
|
|
}
|
|
|
|
tp->phy_auto_nego_reg = auto_nego;
|
|
tp->phy_1000_ctrl_reg = giga_ctrl;
|
|
|
|
mdio_write(ioaddr, MII_ADVERTISE, auto_nego);
|
|
mdio_write(ioaddr, MII_CTRL1000, giga_ctrl);
|
|
mdio_write(ioaddr, MII_BMCR, BMCR_ANENABLE | BMCR_ANRESTART);
|
|
return 0;
|
|
}
|
|
|
|
static int rtl8169_set_speed(struct net_device *dev,
|
|
u8 autoneg, u16 speed, u8 duplex)
|
|
{
|
|
struct rtl8169_private *tp = netdev_priv(dev);
|
|
int ret;
|
|
|
|
ret = tp->set_speed(dev, autoneg, speed, duplex);
|
|
|
|
if (netif_running(dev) && (tp->phy_1000_ctrl_reg & ADVERTISE_1000FULL))
|
|
mod_timer(&tp->timer, jiffies + RTL8169_PHY_TIMEOUT);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int rtl8169_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
|
|
{
|
|
struct rtl8169_private *tp = netdev_priv(dev);
|
|
unsigned long flags;
|
|
int ret;
|
|
|
|
spin_lock_irqsave(&tp->lock, flags);
|
|
ret = rtl8169_set_speed(dev, cmd->autoneg, cmd->speed, cmd->duplex);
|
|
spin_unlock_irqrestore(&tp->lock, flags);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static u32 rtl8169_get_rx_csum(struct net_device *dev)
|
|
{
|
|
struct rtl8169_private *tp = netdev_priv(dev);
|
|
|
|
return tp->cp_cmd & RxChkSum;
|
|
}
|
|
|
|
static int rtl8169_set_rx_csum(struct net_device *dev, u32 data)
|
|
{
|
|
struct rtl8169_private *tp = netdev_priv(dev);
|
|
void __iomem *ioaddr = tp->mmio_addr;
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&tp->lock, flags);
|
|
|
|
if (data)
|
|
tp->cp_cmd |= RxChkSum;
|
|
else
|
|
tp->cp_cmd &= ~RxChkSum;
|
|
|
|
RTL_W16(CPlusCmd, tp->cp_cmd);
|
|
RTL_R16(CPlusCmd);
|
|
|
|
spin_unlock_irqrestore(&tp->lock, flags);
|
|
|
|
return 0;
|
|
}
|
|
|
|
#ifdef CONFIG_R8169_VLAN
|
|
|
|
static inline u32 rtl8169_tx_vlan_tag(struct rtl8169_private *tp,
|
|
struct sk_buff *skb)
|
|
{
|
|
return (tp->vlgrp && vlan_tx_tag_present(skb)) ?
|
|
TxVlanTag | swab16(vlan_tx_tag_get(skb)) : 0x00;
|
|
}
|
|
|
|
static void rtl8169_vlan_rx_register(struct net_device *dev,
|
|
struct vlan_group *grp)
|
|
{
|
|
struct rtl8169_private *tp = netdev_priv(dev);
|
|
void __iomem *ioaddr = tp->mmio_addr;
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&tp->lock, flags);
|
|
tp->vlgrp = grp;
|
|
if (tp->vlgrp)
|
|
tp->cp_cmd |= RxVlan;
|
|
else
|
|
tp->cp_cmd &= ~RxVlan;
|
|
RTL_W16(CPlusCmd, tp->cp_cmd);
|
|
RTL_R16(CPlusCmd);
|
|
spin_unlock_irqrestore(&tp->lock, flags);
|
|
}
|
|
|
|
static int rtl8169_rx_vlan_skb(struct rtl8169_private *tp, struct RxDesc *desc,
|
|
struct sk_buff *skb)
|
|
{
|
|
u32 opts2 = le32_to_cpu(desc->opts2);
|
|
int ret;
|
|
|
|
if (tp->vlgrp && (opts2 & RxVlanTag)) {
|
|
rtl8169_rx_hwaccel_skb(skb, tp->vlgrp, swab16(opts2 & 0xffff));
|
|
ret = 0;
|
|
} else
|
|
ret = -1;
|
|
desc->opts2 = 0;
|
|
return ret;
|
|
}
|
|
|
|
#else /* !CONFIG_R8169_VLAN */
|
|
|
|
static inline u32 rtl8169_tx_vlan_tag(struct rtl8169_private *tp,
|
|
struct sk_buff *skb)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static int rtl8169_rx_vlan_skb(struct rtl8169_private *tp, struct RxDesc *desc,
|
|
struct sk_buff *skb)
|
|
{
|
|
return -1;
|
|
}
|
|
|
|
#endif
|
|
|
|
static void rtl8169_gset_tbi(struct net_device *dev, struct ethtool_cmd *cmd)
|
|
{
|
|
struct rtl8169_private *tp = netdev_priv(dev);
|
|
void __iomem *ioaddr = tp->mmio_addr;
|
|
u32 status;
|
|
|
|
cmd->supported =
|
|
SUPPORTED_1000baseT_Full | SUPPORTED_Autoneg | SUPPORTED_FIBRE;
|
|
cmd->port = PORT_FIBRE;
|
|
cmd->transceiver = XCVR_INTERNAL;
|
|
|
|
status = RTL_R32(TBICSR);
|
|
cmd->advertising = (status & TBINwEnable) ? ADVERTISED_Autoneg : 0;
|
|
cmd->autoneg = !!(status & TBINwEnable);
|
|
|
|
cmd->speed = SPEED_1000;
|
|
cmd->duplex = DUPLEX_FULL; /* Always set */
|
|
}
|
|
|
|
static void rtl8169_gset_xmii(struct net_device *dev, struct ethtool_cmd *cmd)
|
|
{
|
|
struct rtl8169_private *tp = netdev_priv(dev);
|
|
void __iomem *ioaddr = tp->mmio_addr;
|
|
u8 status;
|
|
|
|
cmd->supported = SUPPORTED_10baseT_Half |
|
|
SUPPORTED_10baseT_Full |
|
|
SUPPORTED_100baseT_Half |
|
|
SUPPORTED_100baseT_Full |
|
|
SUPPORTED_1000baseT_Full |
|
|
SUPPORTED_Autoneg |
|
|
SUPPORTED_TP;
|
|
|
|
cmd->autoneg = 1;
|
|
cmd->advertising = ADVERTISED_TP | ADVERTISED_Autoneg;
|
|
|
|
if (tp->phy_auto_nego_reg & ADVERTISE_10HALF)
|
|
cmd->advertising |= ADVERTISED_10baseT_Half;
|
|
if (tp->phy_auto_nego_reg & ADVERTISE_10FULL)
|
|
cmd->advertising |= ADVERTISED_10baseT_Full;
|
|
if (tp->phy_auto_nego_reg & ADVERTISE_100HALF)
|
|
cmd->advertising |= ADVERTISED_100baseT_Half;
|
|
if (tp->phy_auto_nego_reg & ADVERTISE_100FULL)
|
|
cmd->advertising |= ADVERTISED_100baseT_Full;
|
|
if (tp->phy_1000_ctrl_reg & ADVERTISE_1000FULL)
|
|
cmd->advertising |= ADVERTISED_1000baseT_Full;
|
|
|
|
status = RTL_R8(PHYstatus);
|
|
|
|
if (status & _1000bpsF)
|
|
cmd->speed = SPEED_1000;
|
|
else if (status & _100bps)
|
|
cmd->speed = SPEED_100;
|
|
else if (status & _10bps)
|
|
cmd->speed = SPEED_10;
|
|
|
|
if (status & TxFlowCtrl)
|
|
cmd->advertising |= ADVERTISED_Asym_Pause;
|
|
if (status & RxFlowCtrl)
|
|
cmd->advertising |= ADVERTISED_Pause;
|
|
|
|
cmd->duplex = ((status & _1000bpsF) || (status & FullDup)) ?
|
|
DUPLEX_FULL : DUPLEX_HALF;
|
|
}
|
|
|
|
static int rtl8169_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
|
|
{
|
|
struct rtl8169_private *tp = netdev_priv(dev);
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&tp->lock, flags);
|
|
|
|
tp->get_settings(dev, cmd);
|
|
|
|
spin_unlock_irqrestore(&tp->lock, flags);
|
|
return 0;
|
|
}
|
|
|
|
static void rtl8169_get_regs(struct net_device *dev, struct ethtool_regs *regs,
|
|
void *p)
|
|
{
|
|
struct rtl8169_private *tp = netdev_priv(dev);
|
|
unsigned long flags;
|
|
|
|
if (regs->len > R8169_REGS_SIZE)
|
|
regs->len = R8169_REGS_SIZE;
|
|
|
|
spin_lock_irqsave(&tp->lock, flags);
|
|
memcpy_fromio(p, tp->mmio_addr, regs->len);
|
|
spin_unlock_irqrestore(&tp->lock, flags);
|
|
}
|
|
|
|
static u32 rtl8169_get_msglevel(struct net_device *dev)
|
|
{
|
|
struct rtl8169_private *tp = netdev_priv(dev);
|
|
|
|
return tp->msg_enable;
|
|
}
|
|
|
|
static void rtl8169_set_msglevel(struct net_device *dev, u32 value)
|
|
{
|
|
struct rtl8169_private *tp = netdev_priv(dev);
|
|
|
|
tp->msg_enable = value;
|
|
}
|
|
|
|
static const char rtl8169_gstrings[][ETH_GSTRING_LEN] = {
|
|
"tx_packets",
|
|
"rx_packets",
|
|
"tx_errors",
|
|
"rx_errors",
|
|
"rx_missed",
|
|
"align_errors",
|
|
"tx_single_collisions",
|
|
"tx_multi_collisions",
|
|
"unicast",
|
|
"broadcast",
|
|
"multicast",
|
|
"tx_aborted",
|
|
"tx_underrun",
|
|
};
|
|
|
|
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;
|
|
};
|
|
|
|
static int rtl8169_get_sset_count(struct net_device *dev, int sset)
|
|
{
|
|
switch (sset) {
|
|
case ETH_SS_STATS:
|
|
return ARRAY_SIZE(rtl8169_gstrings);
|
|
default:
|
|
return -EOPNOTSUPP;
|
|
}
|
|
}
|
|
|
|
static void rtl8169_get_ethtool_stats(struct net_device *dev,
|
|
struct ethtool_stats *stats, u64 *data)
|
|
{
|
|
struct rtl8169_private *tp = netdev_priv(dev);
|
|
void __iomem *ioaddr = tp->mmio_addr;
|
|
struct rtl8169_counters *counters;
|
|
dma_addr_t paddr;
|
|
u32 cmd;
|
|
|
|
ASSERT_RTNL();
|
|
|
|
counters = pci_alloc_consistent(tp->pci_dev, sizeof(*counters), &paddr);
|
|
if (!counters)
|
|
return;
|
|
|
|
RTL_W32(CounterAddrHigh, (u64)paddr >> 32);
|
|
cmd = (u64)paddr & DMA_32BIT_MASK;
|
|
RTL_W32(CounterAddrLow, cmd);
|
|
RTL_W32(CounterAddrLow, cmd | CounterDump);
|
|
|
|
while (RTL_R32(CounterAddrLow) & CounterDump) {
|
|
if (msleep_interruptible(1))
|
|
break;
|
|
}
|
|
|
|
RTL_W32(CounterAddrLow, 0);
|
|
RTL_W32(CounterAddrHigh, 0);
|
|
|
|
data[0] = le64_to_cpu(counters->tx_packets);
|
|
data[1] = le64_to_cpu(counters->rx_packets);
|
|
data[2] = le64_to_cpu(counters->tx_errors);
|
|
data[3] = le32_to_cpu(counters->rx_errors);
|
|
data[4] = le16_to_cpu(counters->rx_missed);
|
|
data[5] = le16_to_cpu(counters->align_errors);
|
|
data[6] = le32_to_cpu(counters->tx_one_collision);
|
|
data[7] = le32_to_cpu(counters->tx_multi_collision);
|
|
data[8] = le64_to_cpu(counters->rx_unicast);
|
|
data[9] = le64_to_cpu(counters->rx_broadcast);
|
|
data[10] = le32_to_cpu(counters->rx_multicast);
|
|
data[11] = le16_to_cpu(counters->tx_aborted);
|
|
data[12] = le16_to_cpu(counters->tx_underun);
|
|
|
|
pci_free_consistent(tp->pci_dev, sizeof(*counters), counters, paddr);
|
|
}
|
|
|
|
static void rtl8169_get_strings(struct net_device *dev, u32 stringset, u8 *data)
|
|
{
|
|
switch(stringset) {
|
|
case ETH_SS_STATS:
|
|
memcpy(data, *rtl8169_gstrings, sizeof(rtl8169_gstrings));
|
|
break;
|
|
}
|
|
}
|
|
|
|
static const struct ethtool_ops rtl8169_ethtool_ops = {
|
|
.get_drvinfo = rtl8169_get_drvinfo,
|
|
.get_regs_len = rtl8169_get_regs_len,
|
|
.get_link = ethtool_op_get_link,
|
|
.get_settings = rtl8169_get_settings,
|
|
.set_settings = rtl8169_set_settings,
|
|
.get_msglevel = rtl8169_get_msglevel,
|
|
.set_msglevel = rtl8169_set_msglevel,
|
|
.get_rx_csum = rtl8169_get_rx_csum,
|
|
.set_rx_csum = rtl8169_set_rx_csum,
|
|
.set_tx_csum = ethtool_op_set_tx_csum,
|
|
.set_sg = ethtool_op_set_sg,
|
|
.set_tso = ethtool_op_set_tso,
|
|
.get_regs = rtl8169_get_regs,
|
|
.get_wol = rtl8169_get_wol,
|
|
.set_wol = rtl8169_set_wol,
|
|
.get_strings = rtl8169_get_strings,
|
|
.get_sset_count = rtl8169_get_sset_count,
|
|
.get_ethtool_stats = rtl8169_get_ethtool_stats,
|
|
};
|
|
|
|
static void rtl8169_write_gmii_reg_bit(void __iomem *ioaddr, int reg,
|
|
int bitnum, int bitval)
|
|
{
|
|
int val;
|
|
|
|
val = mdio_read(ioaddr, reg);
|
|
val = (bitval == 1) ?
|
|
val | (bitval << bitnum) : val & ~(0x0001 << bitnum);
|
|
mdio_write(ioaddr, reg, val & 0xffff);
|
|
}
|
|
|
|
static void rtl8169_get_mac_version(struct rtl8169_private *tp,
|
|
void __iomem *ioaddr)
|
|
{
|
|
/*
|
|
* The driver currently handles the 8168Bf and the 8168Be identically
|
|
* but they can be identified more specifically through the test below
|
|
* if needed:
|
|
*
|
|
* (RTL_R32(TxConfig) & 0x700000) == 0x500000 ? 8168Bf : 8168Be
|
|
*
|
|
* Same thing for the 8101Eb and the 8101Ec:
|
|
*
|
|
* (RTL_R32(TxConfig) & 0x700000) == 0x200000 ? 8101Eb : 8101Ec
|
|
*/
|
|
const struct {
|
|
u32 mask;
|
|
u32 val;
|
|
int mac_version;
|
|
} mac_info[] = {
|
|
/* 8168B family. */
|
|
{ 0x7c800000, 0x3c800000, RTL_GIGA_MAC_VER_18 },
|
|
{ 0x7cf00000, 0x3c000000, RTL_GIGA_MAC_VER_19 },
|
|
{ 0x7cf00000, 0x3c200000, RTL_GIGA_MAC_VER_20 },
|
|
{ 0x7c800000, 0x3c000000, RTL_GIGA_MAC_VER_20 },
|
|
|
|
/* 8168B family. */
|
|
{ 0x7cf00000, 0x38000000, RTL_GIGA_MAC_VER_12 },
|
|
{ 0x7cf00000, 0x38500000, RTL_GIGA_MAC_VER_17 },
|
|
{ 0x7c800000, 0x38000000, RTL_GIGA_MAC_VER_17 },
|
|
{ 0x7c800000, 0x30000000, RTL_GIGA_MAC_VER_11 },
|
|
|
|
/* 8101 family. */
|
|
{ 0x7cf00000, 0x34000000, RTL_GIGA_MAC_VER_13 },
|
|
{ 0x7cf00000, 0x34200000, RTL_GIGA_MAC_VER_16 },
|
|
{ 0x7c800000, 0x34000000, RTL_GIGA_MAC_VER_16 },
|
|
/* FIXME: where did these entries come from ? -- FR */
|
|
{ 0xfc800000, 0x38800000, RTL_GIGA_MAC_VER_15 },
|
|
{ 0xfc800000, 0x30800000, RTL_GIGA_MAC_VER_14 },
|
|
|
|
/* 8110 family. */
|
|
{ 0xfc800000, 0x98000000, RTL_GIGA_MAC_VER_06 },
|
|
{ 0xfc800000, 0x18000000, RTL_GIGA_MAC_VER_05 },
|
|
{ 0xfc800000, 0x10000000, RTL_GIGA_MAC_VER_04 },
|
|
{ 0xfc800000, 0x04000000, RTL_GIGA_MAC_VER_03 },
|
|
{ 0xfc800000, 0x00800000, RTL_GIGA_MAC_VER_02 },
|
|
{ 0xfc800000, 0x00000000, RTL_GIGA_MAC_VER_01 },
|
|
|
|
{ 0x00000000, 0x00000000, RTL_GIGA_MAC_VER_01 } /* Catch-all */
|
|
}, *p = mac_info;
|
|
u32 reg;
|
|
|
|
reg = RTL_R32(TxConfig);
|
|
while ((reg & p->mask) != p->val)
|
|
p++;
|
|
tp->mac_version = p->mac_version;
|
|
|
|
if (p->mask == 0x00000000) {
|
|
struct pci_dev *pdev = tp->pci_dev;
|
|
|
|
dev_info(&pdev->dev, "unknown MAC (%08x)\n", reg);
|
|
}
|
|
}
|
|
|
|
static void rtl8169_print_mac_version(struct rtl8169_private *tp)
|
|
{
|
|
dprintk("mac_version = 0x%02x\n", tp->mac_version);
|
|
}
|
|
|
|
struct phy_reg {
|
|
u16 reg;
|
|
u16 val;
|
|
};
|
|
|
|
static void rtl_phy_write(void __iomem *ioaddr, struct phy_reg *regs, int len)
|
|
{
|
|
while (len-- > 0) {
|
|
mdio_write(ioaddr, regs->reg, regs->val);
|
|
regs++;
|
|
}
|
|
}
|
|
|
|
static void rtl8169s_hw_phy_config(void __iomem *ioaddr)
|
|
{
|
|
struct {
|
|
u16 regs[5]; /* Beware of bit-sign propagation */
|
|
} phy_magic[5] = { {
|
|
{ 0x0000, //w 4 15 12 0
|
|
0x00a1, //w 3 15 0 00a1
|
|
0x0008, //w 2 15 0 0008
|
|
0x1020, //w 1 15 0 1020
|
|
0x1000 } },{ //w 0 15 0 1000
|
|
{ 0x7000, //w 4 15 12 7
|
|
0xff41, //w 3 15 0 ff41
|
|
0xde60, //w 2 15 0 de60
|
|
0x0140, //w 1 15 0 0140
|
|
0x0077 } },{ //w 0 15 0 0077
|
|
{ 0xa000, //w 4 15 12 a
|
|
0xdf01, //w 3 15 0 df01
|
|
0xdf20, //w 2 15 0 df20
|
|
0xff95, //w 1 15 0 ff95
|
|
0xfa00 } },{ //w 0 15 0 fa00
|
|
{ 0xb000, //w 4 15 12 b
|
|
0xff41, //w 3 15 0 ff41
|
|
0xde20, //w 2 15 0 de20
|
|
0x0140, //w 1 15 0 0140
|
|
0x00bb } },{ //w 0 15 0 00bb
|
|
{ 0xf000, //w 4 15 12 f
|
|
0xdf01, //w 3 15 0 df01
|
|
0xdf20, //w 2 15 0 df20
|
|
0xff95, //w 1 15 0 ff95
|
|
0xbf00 } //w 0 15 0 bf00
|
|
}
|
|
}, *p = phy_magic;
|
|
unsigned int i;
|
|
|
|
mdio_write(ioaddr, 0x1f, 0x0001); //w 31 2 0 1
|
|
mdio_write(ioaddr, 0x15, 0x1000); //w 21 15 0 1000
|
|
mdio_write(ioaddr, 0x18, 0x65c7); //w 24 15 0 65c7
|
|
rtl8169_write_gmii_reg_bit(ioaddr, 4, 11, 0); //w 4 11 11 0
|
|
|
|
for (i = 0; i < ARRAY_SIZE(phy_magic); i++, p++) {
|
|
int val, pos = 4;
|
|
|
|
val = (mdio_read(ioaddr, pos) & 0x0fff) | (p->regs[0] & 0xffff);
|
|
mdio_write(ioaddr, pos, val);
|
|
while (--pos >= 0)
|
|
mdio_write(ioaddr, pos, p->regs[4 - pos] & 0xffff);
|
|
rtl8169_write_gmii_reg_bit(ioaddr, 4, 11, 1); //w 4 11 11 1
|
|
rtl8169_write_gmii_reg_bit(ioaddr, 4, 11, 0); //w 4 11 11 0
|
|
}
|
|
mdio_write(ioaddr, 0x1f, 0x0000); //w 31 2 0 0
|
|
}
|
|
|
|
static void rtl8169sb_hw_phy_config(void __iomem *ioaddr)
|
|
{
|
|
struct phy_reg phy_reg_init[] = {
|
|
{ 0x1f, 0x0002 },
|
|
{ 0x01, 0x90d0 },
|
|
{ 0x1f, 0x0000 }
|
|
};
|
|
|
|
rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init));
|
|
}
|
|
static void rtl8168b_hw_phy_config(void __iomem *ioaddr)
|
|
{
|
|
struct phy_reg phy_reg_init[] = {
|
|
{ 0x1f, 0x0000 },
|
|
{ 0x10, 0xf41b },
|
|
{ 0x1f, 0x0000 }
|
|
};
|
|
|
|
rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init));
|
|
}
|
|
|
|
static void rtl8168cp_hw_phy_config(void __iomem *ioaddr)
|
|
{
|
|
struct phy_reg phy_reg_init[] = {
|
|
{ 0x1f, 0x0000 },
|
|
{ 0x1d, 0x0f00 },
|
|
{ 0x1f, 0x0002 },
|
|
{ 0x0c, 0x1ec8 },
|
|
{ 0x1f, 0x0000 }
|
|
};
|
|
|
|
rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init));
|
|
}
|
|
|
|
static void rtl8168c_hw_phy_config(void __iomem *ioaddr)
|
|
{
|
|
struct phy_reg phy_reg_init[] = {
|
|
{ 0x1f, 0x0001 },
|
|
{ 0x12, 0x2300 },
|
|
{ 0x1f, 0x0002 },
|
|
{ 0x00, 0x88d4 },
|
|
{ 0x01, 0x82b1 },
|
|
{ 0x03, 0x7002 },
|
|
{ 0x08, 0x9e30 },
|
|
{ 0x09, 0x01f0 },
|
|
{ 0x0a, 0x5500 },
|
|
{ 0x0c, 0x00c8 },
|
|
{ 0x1f, 0x0003 },
|
|
{ 0x12, 0xc096 },
|
|
{ 0x16, 0x000a },
|
|
{ 0x1f, 0x0000 }
|
|
};
|
|
|
|
rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init));
|
|
}
|
|
|
|
static void rtl8168cx_hw_phy_config(void __iomem *ioaddr)
|
|
{
|
|
struct phy_reg phy_reg_init[] = {
|
|
{ 0x1f, 0x0000 },
|
|
{ 0x12, 0x2300 },
|
|
{ 0x1f, 0x0003 },
|
|
{ 0x16, 0x0f0a },
|
|
{ 0x1f, 0x0000 },
|
|
{ 0x1f, 0x0002 },
|
|
{ 0x0c, 0x7eb8 },
|
|
{ 0x1f, 0x0000 }
|
|
};
|
|
|
|
rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init));
|
|
}
|
|
|
|
static void rtl_hw_phy_config(struct net_device *dev)
|
|
{
|
|
struct rtl8169_private *tp = netdev_priv(dev);
|
|
void __iomem *ioaddr = tp->mmio_addr;
|
|
|
|
rtl8169_print_mac_version(tp);
|
|
|
|
switch (tp->mac_version) {
|
|
case RTL_GIGA_MAC_VER_01:
|
|
break;
|
|
case RTL_GIGA_MAC_VER_02:
|
|
case RTL_GIGA_MAC_VER_03:
|
|
rtl8169s_hw_phy_config(ioaddr);
|
|
break;
|
|
case RTL_GIGA_MAC_VER_04:
|
|
rtl8169sb_hw_phy_config(ioaddr);
|
|
break;
|
|
case RTL_GIGA_MAC_VER_11:
|
|
case RTL_GIGA_MAC_VER_12:
|
|
case RTL_GIGA_MAC_VER_17:
|
|
rtl8168b_hw_phy_config(ioaddr);
|
|
break;
|
|
case RTL_GIGA_MAC_VER_18:
|
|
rtl8168cp_hw_phy_config(ioaddr);
|
|
break;
|
|
case RTL_GIGA_MAC_VER_19:
|
|
rtl8168c_hw_phy_config(ioaddr);
|
|
break;
|
|
case RTL_GIGA_MAC_VER_20:
|
|
rtl8168cx_hw_phy_config(ioaddr);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void rtl8169_phy_timer(unsigned long __opaque)
|
|
{
|
|
struct net_device *dev = (struct net_device *)__opaque;
|
|
struct rtl8169_private *tp = netdev_priv(dev);
|
|
struct timer_list *timer = &tp->timer;
|
|
void __iomem *ioaddr = tp->mmio_addr;
|
|
unsigned long timeout = RTL8169_PHY_TIMEOUT;
|
|
|
|
assert(tp->mac_version > RTL_GIGA_MAC_VER_01);
|
|
|
|
if (!(tp->phy_1000_ctrl_reg & ADVERTISE_1000FULL))
|
|
return;
|
|
|
|
spin_lock_irq(&tp->lock);
|
|
|
|
if (tp->phy_reset_pending(ioaddr)) {
|
|
/*
|
|
* A busy loop could burn quite a few cycles on nowadays CPU.
|
|
* Let's delay the execution of the timer for a few ticks.
|
|
*/
|
|
timeout = HZ/10;
|
|
goto out_mod_timer;
|
|
}
|
|
|
|
if (tp->link_ok(ioaddr))
|
|
goto out_unlock;
|
|
|
|
if (netif_msg_link(tp))
|
|
printk(KERN_WARNING "%s: PHY reset until link up\n", dev->name);
|
|
|
|
tp->phy_reset_enable(ioaddr);
|
|
|
|
out_mod_timer:
|
|
mod_timer(timer, jiffies + timeout);
|
|
out_unlock:
|
|
spin_unlock_irq(&tp->lock);
|
|
}
|
|
|
|
static inline void rtl8169_delete_timer(struct net_device *dev)
|
|
{
|
|
struct rtl8169_private *tp = netdev_priv(dev);
|
|
struct timer_list *timer = &tp->timer;
|
|
|
|
if (tp->mac_version <= RTL_GIGA_MAC_VER_01)
|
|
return;
|
|
|
|
del_timer_sync(timer);
|
|
}
|
|
|
|
static inline void rtl8169_request_timer(struct net_device *dev)
|
|
{
|
|
struct rtl8169_private *tp = netdev_priv(dev);
|
|
struct timer_list *timer = &tp->timer;
|
|
|
|
if (tp->mac_version <= RTL_GIGA_MAC_VER_01)
|
|
return;
|
|
|
|
mod_timer(timer, jiffies + RTL8169_PHY_TIMEOUT);
|
|
}
|
|
|
|
#ifdef CONFIG_NET_POLL_CONTROLLER
|
|
/*
|
|
* Polling 'interrupt' - used by things like netconsole to send skbs
|
|
* without having to re-enable interrupts. It's not called while
|
|
* the interrupt routine is executing.
|
|
*/
|
|
static void rtl8169_netpoll(struct net_device *dev)
|
|
{
|
|
struct rtl8169_private *tp = netdev_priv(dev);
|
|
struct pci_dev *pdev = tp->pci_dev;
|
|
|
|
disable_irq(pdev->irq);
|
|
rtl8169_interrupt(pdev->irq, dev);
|
|
enable_irq(pdev->irq);
|
|
}
|
|
#endif
|
|
|
|
static void rtl8169_release_board(struct pci_dev *pdev, struct net_device *dev,
|
|
void __iomem *ioaddr)
|
|
{
|
|
iounmap(ioaddr);
|
|
pci_release_regions(pdev);
|
|
pci_disable_device(pdev);
|
|
free_netdev(dev);
|
|
}
|
|
|
|
static void rtl8169_phy_reset(struct net_device *dev,
|
|
struct rtl8169_private *tp)
|
|
{
|
|
void __iomem *ioaddr = tp->mmio_addr;
|
|
unsigned int i;
|
|
|
|
tp->phy_reset_enable(ioaddr);
|
|
for (i = 0; i < 100; i++) {
|
|
if (!tp->phy_reset_pending(ioaddr))
|
|
return;
|
|
msleep(1);
|
|
}
|
|
if (netif_msg_link(tp))
|
|
printk(KERN_ERR "%s: PHY reset failed.\n", dev->name);
|
|
}
|
|
|
|
static void rtl8169_init_phy(struct net_device *dev, struct rtl8169_private *tp)
|
|
{
|
|
void __iomem *ioaddr = tp->mmio_addr;
|
|
|
|
rtl_hw_phy_config(dev);
|
|
|
|
dprintk("Set MAC Reg C+CR Offset 0x82h = 0x01h\n");
|
|
RTL_W8(0x82, 0x01);
|
|
|
|
pci_write_config_byte(tp->pci_dev, PCI_LATENCY_TIMER, 0x40);
|
|
|
|
if (tp->mac_version <= RTL_GIGA_MAC_VER_06)
|
|
pci_write_config_byte(tp->pci_dev, PCI_CACHE_LINE_SIZE, 0x08);
|
|
|
|
if (tp->mac_version == RTL_GIGA_MAC_VER_02) {
|
|
dprintk("Set MAC Reg C+CR Offset 0x82h = 0x01h\n");
|
|
RTL_W8(0x82, 0x01);
|
|
dprintk("Set PHY Reg 0x0bh = 0x00h\n");
|
|
mdio_write(ioaddr, 0x0b, 0x0000); //w 0x0b 15 0 0
|
|
}
|
|
|
|
rtl8169_phy_reset(dev, tp);
|
|
|
|
/*
|
|
* rtl8169_set_speed_xmii takes good care of the Fast Ethernet
|
|
* only 8101. Don't panic.
|
|
*/
|
|
rtl8169_set_speed(dev, AUTONEG_ENABLE, SPEED_1000, DUPLEX_FULL);
|
|
|
|
if ((RTL_R8(PHYstatus) & TBI_Enable) && netif_msg_link(tp))
|
|
printk(KERN_INFO PFX "%s: TBI auto-negotiating\n", dev->name);
|
|
}
|
|
|
|
static void rtl_rar_set(struct rtl8169_private *tp, u8 *addr)
|
|
{
|
|
void __iomem *ioaddr = tp->mmio_addr;
|
|
u32 high;
|
|
u32 low;
|
|
|
|
low = addr[0] | (addr[1] << 8) | (addr[2] << 16) | (addr[3] << 24);
|
|
high = addr[4] | (addr[5] << 8);
|
|
|
|
spin_lock_irq(&tp->lock);
|
|
|
|
RTL_W8(Cfg9346, Cfg9346_Unlock);
|
|
RTL_W32(MAC0, low);
|
|
RTL_W32(MAC4, high);
|
|
RTL_W8(Cfg9346, Cfg9346_Lock);
|
|
|
|
spin_unlock_irq(&tp->lock);
|
|
}
|
|
|
|
static int rtl_set_mac_address(struct net_device *dev, void *p)
|
|
{
|
|
struct rtl8169_private *tp = netdev_priv(dev);
|
|
struct sockaddr *addr = p;
|
|
|
|
if (!is_valid_ether_addr(addr->sa_data))
|
|
return -EADDRNOTAVAIL;
|
|
|
|
memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
|
|
|
|
rtl_rar_set(tp, dev->dev_addr);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int rtl8169_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
|
|
{
|
|
struct rtl8169_private *tp = netdev_priv(dev);
|
|
struct mii_ioctl_data *data = if_mii(ifr);
|
|
|
|
if (!netif_running(dev))
|
|
return -ENODEV;
|
|
|
|
switch (cmd) {
|
|
case SIOCGMIIPHY:
|
|
data->phy_id = 32; /* Internal PHY */
|
|
return 0;
|
|
|
|
case SIOCGMIIREG:
|
|
data->val_out = mdio_read(tp->mmio_addr, data->reg_num & 0x1f);
|
|
return 0;
|
|
|
|
case SIOCSMIIREG:
|
|
if (!capable(CAP_NET_ADMIN))
|
|
return -EPERM;
|
|
mdio_write(tp->mmio_addr, data->reg_num & 0x1f, data->val_in);
|
|
return 0;
|
|
}
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
static const struct rtl_cfg_info {
|
|
void (*hw_start)(struct net_device *);
|
|
unsigned int region;
|
|
unsigned int align;
|
|
u16 intr_event;
|
|
u16 napi_event;
|
|
unsigned msi;
|
|
} rtl_cfg_infos [] = {
|
|
[RTL_CFG_0] = {
|
|
.hw_start = rtl_hw_start_8169,
|
|
.region = 1,
|
|
.align = 0,
|
|
.intr_event = SYSErr | LinkChg | RxOverflow |
|
|
RxFIFOOver | TxErr | TxOK | RxOK | RxErr,
|
|
.napi_event = RxFIFOOver | TxErr | TxOK | RxOK | RxOverflow,
|
|
.msi = 0
|
|
},
|
|
[RTL_CFG_1] = {
|
|
.hw_start = rtl_hw_start_8168,
|
|
.region = 2,
|
|
.align = 8,
|
|
.intr_event = SYSErr | LinkChg | RxOverflow |
|
|
TxErr | TxOK | RxOK | RxErr,
|
|
.napi_event = TxErr | TxOK | RxOK | RxOverflow,
|
|
.msi = RTL_FEATURE_MSI
|
|
},
|
|
[RTL_CFG_2] = {
|
|
.hw_start = rtl_hw_start_8101,
|
|
.region = 2,
|
|
.align = 8,
|
|
.intr_event = SYSErr | LinkChg | RxOverflow | PCSTimeout |
|
|
RxFIFOOver | TxErr | TxOK | RxOK | RxErr,
|
|
.napi_event = RxFIFOOver | TxErr | TxOK | RxOK | RxOverflow,
|
|
.msi = RTL_FEATURE_MSI
|
|
}
|
|
};
|
|
|
|
/* Cfg9346_Unlock assumed. */
|
|
static unsigned rtl_try_msi(struct pci_dev *pdev, void __iomem *ioaddr,
|
|
const struct rtl_cfg_info *cfg)
|
|
{
|
|
unsigned msi = 0;
|
|
u8 cfg2;
|
|
|
|
cfg2 = RTL_R8(Config2) & ~MSIEnable;
|
|
if (cfg->msi) {
|
|
if (pci_enable_msi(pdev)) {
|
|
dev_info(&pdev->dev, "no MSI. Back to INTx.\n");
|
|
} else {
|
|
cfg2 |= MSIEnable;
|
|
msi = RTL_FEATURE_MSI;
|
|
}
|
|
}
|
|
RTL_W8(Config2, cfg2);
|
|
return msi;
|
|
}
|
|
|
|
static void rtl_disable_msi(struct pci_dev *pdev, struct rtl8169_private *tp)
|
|
{
|
|
if (tp->features & RTL_FEATURE_MSI) {
|
|
pci_disable_msi(pdev);
|
|
tp->features &= ~RTL_FEATURE_MSI;
|
|
}
|
|
}
|
|
|
|
static int __devinit
|
|
rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
|
|
{
|
|
const struct rtl_cfg_info *cfg = rtl_cfg_infos + ent->driver_data;
|
|
const unsigned int region = cfg->region;
|
|
struct rtl8169_private *tp;
|
|
struct net_device *dev;
|
|
void __iomem *ioaddr;
|
|
unsigned int i;
|
|
int rc;
|
|
|
|
if (netif_msg_drv(&debug)) {
|
|
printk(KERN_INFO "%s Gigabit Ethernet driver %s loaded\n",
|
|
MODULENAME, RTL8169_VERSION);
|
|
}
|
|
|
|
dev = alloc_etherdev(sizeof (*tp));
|
|
if (!dev) {
|
|
if (netif_msg_drv(&debug))
|
|
dev_err(&pdev->dev, "unable to alloc new ethernet\n");
|
|
rc = -ENOMEM;
|
|
goto out;
|
|
}
|
|
|
|
SET_NETDEV_DEV(dev, &pdev->dev);
|
|
tp = netdev_priv(dev);
|
|
tp->dev = dev;
|
|
tp->msg_enable = netif_msg_init(debug.msg_enable, R8169_MSG_DEFAULT);
|
|
|
|
/* enable device (incl. PCI PM wakeup and hotplug setup) */
|
|
rc = pci_enable_device(pdev);
|
|
if (rc < 0) {
|
|
if (netif_msg_probe(tp))
|
|
dev_err(&pdev->dev, "enable failure\n");
|
|
goto err_out_free_dev_1;
|
|
}
|
|
|
|
rc = pci_set_mwi(pdev);
|
|
if (rc < 0)
|
|
goto err_out_disable_2;
|
|
|
|
/* make sure PCI base addr 1 is MMIO */
|
|
if (!(pci_resource_flags(pdev, region) & IORESOURCE_MEM)) {
|
|
if (netif_msg_probe(tp)) {
|
|
dev_err(&pdev->dev,
|
|
"region #%d not an MMIO resource, aborting\n",
|
|
region);
|
|
}
|
|
rc = -ENODEV;
|
|
goto err_out_mwi_3;
|
|
}
|
|
|
|
/* check for weird/broken PCI region reporting */
|
|
if (pci_resource_len(pdev, region) < R8169_REGS_SIZE) {
|
|
if (netif_msg_probe(tp)) {
|
|
dev_err(&pdev->dev,
|
|
"Invalid PCI region size(s), aborting\n");
|
|
}
|
|
rc = -ENODEV;
|
|
goto err_out_mwi_3;
|
|
}
|
|
|
|
rc = pci_request_regions(pdev, MODULENAME);
|
|
if (rc < 0) {
|
|
if (netif_msg_probe(tp))
|
|
dev_err(&pdev->dev, "could not request regions.\n");
|
|
goto err_out_mwi_3;
|
|
}
|
|
|
|
tp->cp_cmd = PCIMulRW | RxChkSum;
|
|
|
|
if ((sizeof(dma_addr_t) > 4) &&
|
|
!pci_set_dma_mask(pdev, DMA_64BIT_MASK) && use_dac) {
|
|
tp->cp_cmd |= PCIDAC;
|
|
dev->features |= NETIF_F_HIGHDMA;
|
|
} else {
|
|
rc = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
|
|
if (rc < 0) {
|
|
if (netif_msg_probe(tp)) {
|
|
dev_err(&pdev->dev,
|
|
"DMA configuration failed.\n");
|
|
}
|
|
goto err_out_free_res_4;
|
|
}
|
|
}
|
|
|
|
pci_set_master(pdev);
|
|
|
|
/* ioremap MMIO region */
|
|
ioaddr = ioremap(pci_resource_start(pdev, region), R8169_REGS_SIZE);
|
|
if (!ioaddr) {
|
|
if (netif_msg_probe(tp))
|
|
dev_err(&pdev->dev, "cannot remap MMIO, aborting\n");
|
|
rc = -EIO;
|
|
goto err_out_free_res_4;
|
|
}
|
|
|
|
/* Unneeded ? Don't mess with Mrs. Murphy. */
|
|
rtl8169_irq_mask_and_ack(ioaddr);
|
|
|
|
/* Soft reset the chip. */
|
|
RTL_W8(ChipCmd, CmdReset);
|
|
|
|
/* Check that the chip has finished the reset. */
|
|
for (i = 0; i < 100; i++) {
|
|
if ((RTL_R8(ChipCmd) & CmdReset) == 0)
|
|
break;
|
|
msleep_interruptible(1);
|
|
}
|
|
|
|
/* Identify chip attached to board */
|
|
rtl8169_get_mac_version(tp, ioaddr);
|
|
|
|
rtl8169_print_mac_version(tp);
|
|
|
|
for (i = ARRAY_SIZE(rtl_chip_info) - 1; i >= 0; i--) {
|
|
if (tp->mac_version == rtl_chip_info[i].mac_version)
|
|
break;
|
|
}
|
|
if (i < 0) {
|
|
/* Unknown chip: assume array element #0, original RTL-8169 */
|
|
if (netif_msg_probe(tp)) {
|
|
dev_printk(KERN_DEBUG, &pdev->dev,
|
|
"unknown chip version, assuming %s\n",
|
|
rtl_chip_info[0].name);
|
|
}
|
|
i++;
|
|
}
|
|
tp->chipset = i;
|
|
|
|
RTL_W8(Cfg9346, Cfg9346_Unlock);
|
|
RTL_W8(Config1, RTL_R8(Config1) | PMEnable);
|
|
RTL_W8(Config5, RTL_R8(Config5) & PMEStatus);
|
|
tp->features |= rtl_try_msi(pdev, ioaddr, cfg);
|
|
RTL_W8(Cfg9346, Cfg9346_Lock);
|
|
|
|
if (RTL_R8(PHYstatus) & TBI_Enable) {
|
|
tp->set_speed = rtl8169_set_speed_tbi;
|
|
tp->get_settings = rtl8169_gset_tbi;
|
|
tp->phy_reset_enable = rtl8169_tbi_reset_enable;
|
|
tp->phy_reset_pending = rtl8169_tbi_reset_pending;
|
|
tp->link_ok = rtl8169_tbi_link_ok;
|
|
|
|
tp->phy_1000_ctrl_reg = ADVERTISE_1000FULL; /* Implied by TBI */
|
|
} else {
|
|
tp->set_speed = rtl8169_set_speed_xmii;
|
|
tp->get_settings = rtl8169_gset_xmii;
|
|
tp->phy_reset_enable = rtl8169_xmii_reset_enable;
|
|
tp->phy_reset_pending = rtl8169_xmii_reset_pending;
|
|
tp->link_ok = rtl8169_xmii_link_ok;
|
|
|
|
dev->do_ioctl = rtl8169_ioctl;
|
|
}
|
|
|
|
/* Get MAC address. FIXME: read EEPROM */
|
|
for (i = 0; i < MAC_ADDR_LEN; i++)
|
|
dev->dev_addr[i] = RTL_R8(MAC0 + i);
|
|
memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len);
|
|
|
|
dev->open = rtl8169_open;
|
|
dev->hard_start_xmit = rtl8169_start_xmit;
|
|
dev->get_stats = rtl8169_get_stats;
|
|
SET_ETHTOOL_OPS(dev, &rtl8169_ethtool_ops);
|
|
dev->stop = rtl8169_close;
|
|
dev->tx_timeout = rtl8169_tx_timeout;
|
|
dev->set_multicast_list = rtl_set_rx_mode;
|
|
dev->watchdog_timeo = RTL8169_TX_TIMEOUT;
|
|
dev->irq = pdev->irq;
|
|
dev->base_addr = (unsigned long) ioaddr;
|
|
dev->change_mtu = rtl8169_change_mtu;
|
|
dev->set_mac_address = rtl_set_mac_address;
|
|
|
|
#ifdef CONFIG_R8169_NAPI
|
|
netif_napi_add(dev, &tp->napi, rtl8169_poll, R8169_NAPI_WEIGHT);
|
|
#endif
|
|
|
|
#ifdef CONFIG_R8169_VLAN
|
|
dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
|
|
dev->vlan_rx_register = rtl8169_vlan_rx_register;
|
|
#endif
|
|
|
|
#ifdef CONFIG_NET_POLL_CONTROLLER
|
|
dev->poll_controller = rtl8169_netpoll;
|
|
#endif
|
|
|
|
tp->intr_mask = 0xffff;
|
|
tp->pci_dev = pdev;
|
|
tp->mmio_addr = ioaddr;
|
|
tp->align = cfg->align;
|
|
tp->hw_start = cfg->hw_start;
|
|
tp->intr_event = cfg->intr_event;
|
|
tp->napi_event = cfg->napi_event;
|
|
|
|
init_timer(&tp->timer);
|
|
tp->timer.data = (unsigned long) dev;
|
|
tp->timer.function = rtl8169_phy_timer;
|
|
|
|
spin_lock_init(&tp->lock);
|
|
|
|
rc = register_netdev(dev);
|
|
if (rc < 0)
|
|
goto err_out_msi_5;
|
|
|
|
pci_set_drvdata(pdev, dev);
|
|
|
|
if (netif_msg_probe(tp)) {
|
|
u32 xid = RTL_R32(TxConfig) & 0x7cf0f8ff;
|
|
|
|
printk(KERN_INFO "%s: %s at 0x%lx, "
|
|
"%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x, "
|
|
"XID %08x IRQ %d\n",
|
|
dev->name,
|
|
rtl_chip_info[tp->chipset].name,
|
|
dev->base_addr,
|
|
dev->dev_addr[0], dev->dev_addr[1],
|
|
dev->dev_addr[2], dev->dev_addr[3],
|
|
dev->dev_addr[4], dev->dev_addr[5], xid, dev->irq);
|
|
}
|
|
|
|
rtl8169_init_phy(dev, tp);
|
|
|
|
out:
|
|
return rc;
|
|
|
|
err_out_msi_5:
|
|
rtl_disable_msi(pdev, tp);
|
|
iounmap(ioaddr);
|
|
err_out_free_res_4:
|
|
pci_release_regions(pdev);
|
|
err_out_mwi_3:
|
|
pci_clear_mwi(pdev);
|
|
err_out_disable_2:
|
|
pci_disable_device(pdev);
|
|
err_out_free_dev_1:
|
|
free_netdev(dev);
|
|
goto out;
|
|
}
|
|
|
|
static void __devexit rtl8169_remove_one(struct pci_dev *pdev)
|
|
{
|
|
struct net_device *dev = pci_get_drvdata(pdev);
|
|
struct rtl8169_private *tp = netdev_priv(dev);
|
|
|
|
flush_scheduled_work();
|
|
|
|
unregister_netdev(dev);
|
|
rtl_disable_msi(pdev, tp);
|
|
rtl8169_release_board(pdev, dev, tp->mmio_addr);
|
|
pci_set_drvdata(pdev, NULL);
|
|
}
|
|
|
|
static void rtl8169_set_rxbufsize(struct rtl8169_private *tp,
|
|
struct net_device *dev)
|
|
{
|
|
unsigned int mtu = dev->mtu;
|
|
|
|
tp->rx_buf_sz = (mtu > RX_BUF_SIZE) ? mtu + ETH_HLEN + 8 : RX_BUF_SIZE;
|
|
}
|
|
|
|
static int rtl8169_open(struct net_device *dev)
|
|
{
|
|
struct rtl8169_private *tp = netdev_priv(dev);
|
|
struct pci_dev *pdev = tp->pci_dev;
|
|
int retval = -ENOMEM;
|
|
|
|
|
|
rtl8169_set_rxbufsize(tp, dev);
|
|
|
|
/*
|
|
* Rx and Tx desscriptors needs 256 bytes alignment.
|
|
* pci_alloc_consistent provides more.
|
|
*/
|
|
tp->TxDescArray = pci_alloc_consistent(pdev, R8169_TX_RING_BYTES,
|
|
&tp->TxPhyAddr);
|
|
if (!tp->TxDescArray)
|
|
goto out;
|
|
|
|
tp->RxDescArray = pci_alloc_consistent(pdev, R8169_RX_RING_BYTES,
|
|
&tp->RxPhyAddr);
|
|
if (!tp->RxDescArray)
|
|
goto err_free_tx_0;
|
|
|
|
retval = rtl8169_init_ring(dev);
|
|
if (retval < 0)
|
|
goto err_free_rx_1;
|
|
|
|
INIT_DELAYED_WORK(&tp->task, NULL);
|
|
|
|
smp_mb();
|
|
|
|
retval = request_irq(dev->irq, rtl8169_interrupt,
|
|
(tp->features & RTL_FEATURE_MSI) ? 0 : IRQF_SHARED,
|
|
dev->name, dev);
|
|
if (retval < 0)
|
|
goto err_release_ring_2;
|
|
|
|
#ifdef CONFIG_R8169_NAPI
|
|
napi_enable(&tp->napi);
|
|
#endif
|
|
|
|
rtl_hw_start(dev);
|
|
|
|
rtl8169_request_timer(dev);
|
|
|
|
rtl8169_check_link_status(dev, tp, tp->mmio_addr);
|
|
out:
|
|
return retval;
|
|
|
|
err_release_ring_2:
|
|
rtl8169_rx_clear(tp);
|
|
err_free_rx_1:
|
|
pci_free_consistent(pdev, R8169_RX_RING_BYTES, tp->RxDescArray,
|
|
tp->RxPhyAddr);
|
|
err_free_tx_0:
|
|
pci_free_consistent(pdev, R8169_TX_RING_BYTES, tp->TxDescArray,
|
|
tp->TxPhyAddr);
|
|
goto out;
|
|
}
|
|
|
|
static void rtl8169_hw_reset(void __iomem *ioaddr)
|
|
{
|
|
/* Disable interrupts */
|
|
rtl8169_irq_mask_and_ack(ioaddr);
|
|
|
|
/* Reset the chipset */
|
|
RTL_W8(ChipCmd, CmdReset);
|
|
|
|
/* PCI commit */
|
|
RTL_R8(ChipCmd);
|
|
}
|
|
|
|
static void rtl_set_rx_tx_config_registers(struct rtl8169_private *tp)
|
|
{
|
|
void __iomem *ioaddr = tp->mmio_addr;
|
|
u32 cfg = rtl8169_rx_config;
|
|
|
|
cfg |= (RTL_R32(RxConfig) & rtl_chip_info[tp->chipset].RxConfigMask);
|
|
RTL_W32(RxConfig, cfg);
|
|
|
|
/* Set DMA burst size and Interframe Gap Time */
|
|
RTL_W32(TxConfig, (TX_DMA_BURST << TxDMAShift) |
|
|
(InterFrameGap << TxInterFrameGapShift));
|
|
}
|
|
|
|
static void rtl_hw_start(struct net_device *dev)
|
|
{
|
|
struct rtl8169_private *tp = netdev_priv(dev);
|
|
void __iomem *ioaddr = tp->mmio_addr;
|
|
unsigned int i;
|
|
|
|
/* Soft reset the chip. */
|
|
RTL_W8(ChipCmd, CmdReset);
|
|
|
|
/* Check that the chip has finished the reset. */
|
|
for (i = 0; i < 100; i++) {
|
|
if ((RTL_R8(ChipCmd) & CmdReset) == 0)
|
|
break;
|
|
msleep_interruptible(1);
|
|
}
|
|
|
|
tp->hw_start(dev);
|
|
|
|
netif_start_queue(dev);
|
|
}
|
|
|
|
|
|
static void rtl_set_rx_tx_desc_registers(struct rtl8169_private *tp,
|
|
void __iomem *ioaddr)
|
|
{
|
|
/*
|
|
* Magic spell: some iop3xx ARM board needs the TxDescAddrHigh
|
|
* register to be written before TxDescAddrLow to work.
|
|
* Switching from MMIO to I/O access fixes the issue as well.
|
|
*/
|
|
RTL_W32(TxDescStartAddrHigh, ((u64) tp->TxPhyAddr) >> 32);
|
|
RTL_W32(TxDescStartAddrLow, ((u64) tp->TxPhyAddr) & DMA_32BIT_MASK);
|
|
RTL_W32(RxDescAddrHigh, ((u64) tp->RxPhyAddr) >> 32);
|
|
RTL_W32(RxDescAddrLow, ((u64) tp->RxPhyAddr) & DMA_32BIT_MASK);
|
|
}
|
|
|
|
static u16 rtl_rw_cpluscmd(void __iomem *ioaddr)
|
|
{
|
|
u16 cmd;
|
|
|
|
cmd = RTL_R16(CPlusCmd);
|
|
RTL_W16(CPlusCmd, cmd);
|
|
return cmd;
|
|
}
|
|
|
|
static void rtl_set_rx_max_size(void __iomem *ioaddr)
|
|
{
|
|
/* Low hurts. Let's disable the filtering. */
|
|
RTL_W16(RxMaxSize, 16383);
|
|
}
|
|
|
|
static void rtl8169_set_magic_reg(void __iomem *ioaddr, unsigned mac_version)
|
|
{
|
|
struct {
|
|
u32 mac_version;
|
|
u32 clk;
|
|
u32 val;
|
|
} cfg2_info [] = {
|
|
{ RTL_GIGA_MAC_VER_05, PCI_Clock_33MHz, 0x000fff00 }, // 8110SCd
|
|
{ RTL_GIGA_MAC_VER_05, PCI_Clock_66MHz, 0x000fffff },
|
|
{ RTL_GIGA_MAC_VER_06, PCI_Clock_33MHz, 0x00ffff00 }, // 8110SCe
|
|
{ RTL_GIGA_MAC_VER_06, PCI_Clock_66MHz, 0x00ffffff }
|
|
}, *p = cfg2_info;
|
|
unsigned int i;
|
|
u32 clk;
|
|
|
|
clk = RTL_R8(Config2) & PCI_Clock_66MHz;
|
|
for (i = 0; i < ARRAY_SIZE(cfg2_info); i++) {
|
|
if ((p->mac_version == mac_version) && (p->clk == clk)) {
|
|
RTL_W32(0x7c, p->val);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void rtl_hw_start_8169(struct net_device *dev)
|
|
{
|
|
struct rtl8169_private *tp = netdev_priv(dev);
|
|
void __iomem *ioaddr = tp->mmio_addr;
|
|
struct pci_dev *pdev = tp->pci_dev;
|
|
|
|
if (tp->mac_version == RTL_GIGA_MAC_VER_05) {
|
|
RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) | PCIMulRW);
|
|
pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE, 0x08);
|
|
}
|
|
|
|
RTL_W8(Cfg9346, Cfg9346_Unlock);
|
|
if ((tp->mac_version == RTL_GIGA_MAC_VER_01) ||
|
|
(tp->mac_version == RTL_GIGA_MAC_VER_02) ||
|
|
(tp->mac_version == RTL_GIGA_MAC_VER_03) ||
|
|
(tp->mac_version == RTL_GIGA_MAC_VER_04))
|
|
RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb);
|
|
|
|
RTL_W8(EarlyTxThres, EarlyTxThld);
|
|
|
|
rtl_set_rx_max_size(ioaddr);
|
|
|
|
if ((tp->mac_version == RTL_GIGA_MAC_VER_01) ||
|
|
(tp->mac_version == RTL_GIGA_MAC_VER_02) ||
|
|
(tp->mac_version == RTL_GIGA_MAC_VER_03) ||
|
|
(tp->mac_version == RTL_GIGA_MAC_VER_04))
|
|
rtl_set_rx_tx_config_registers(tp);
|
|
|
|
tp->cp_cmd |= rtl_rw_cpluscmd(ioaddr) | PCIMulRW;
|
|
|
|
if ((tp->mac_version == RTL_GIGA_MAC_VER_02) ||
|
|
(tp->mac_version == RTL_GIGA_MAC_VER_03)) {
|
|
dprintk("Set MAC Reg C+CR Offset 0xE0. "
|
|
"Bit-3 and bit-14 MUST be 1\n");
|
|
tp->cp_cmd |= (1 << 14);
|
|
}
|
|
|
|
RTL_W16(CPlusCmd, tp->cp_cmd);
|
|
|
|
rtl8169_set_magic_reg(ioaddr, tp->mac_version);
|
|
|
|
/*
|
|
* Undocumented corner. Supposedly:
|
|
* (TxTimer << 12) | (TxPackets << 8) | (RxTimer << 4) | RxPackets
|
|
*/
|
|
RTL_W16(IntrMitigate, 0x0000);
|
|
|
|
rtl_set_rx_tx_desc_registers(tp, ioaddr);
|
|
|
|
if ((tp->mac_version != RTL_GIGA_MAC_VER_01) &&
|
|
(tp->mac_version != RTL_GIGA_MAC_VER_02) &&
|
|
(tp->mac_version != RTL_GIGA_MAC_VER_03) &&
|
|
(tp->mac_version != RTL_GIGA_MAC_VER_04)) {
|
|
RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb);
|
|
rtl_set_rx_tx_config_registers(tp);
|
|
}
|
|
|
|
RTL_W8(Cfg9346, Cfg9346_Lock);
|
|
|
|
/* Initially a 10 us delay. Turned it into a PCI commit. - FR */
|
|
RTL_R8(IntrMask);
|
|
|
|
RTL_W32(RxMissed, 0);
|
|
|
|
rtl_set_rx_mode(dev);
|
|
|
|
/* no early-rx interrupts */
|
|
RTL_W16(MultiIntr, RTL_R16(MultiIntr) & 0xF000);
|
|
|
|
/* Enable all known interrupts by setting the interrupt mask. */
|
|
RTL_W16(IntrMask, tp->intr_event);
|
|
}
|
|
|
|
static void rtl_hw_start_8168(struct net_device *dev)
|
|
{
|
|
struct rtl8169_private *tp = netdev_priv(dev);
|
|
void __iomem *ioaddr = tp->mmio_addr;
|
|
struct pci_dev *pdev = tp->pci_dev;
|
|
u8 ctl;
|
|
|
|
RTL_W8(Cfg9346, Cfg9346_Unlock);
|
|
|
|
RTL_W8(EarlyTxThres, EarlyTxThld);
|
|
|
|
rtl_set_rx_max_size(ioaddr);
|
|
|
|
rtl_set_rx_tx_config_registers(tp);
|
|
|
|
tp->cp_cmd |= RTL_R16(CPlusCmd) | PktCntrDisable | INTT_1;
|
|
|
|
RTL_W16(CPlusCmd, tp->cp_cmd);
|
|
|
|
/* Tx performance tweak. */
|
|
pci_read_config_byte(pdev, 0x69, &ctl);
|
|
ctl = (ctl & ~0x70) | 0x50;
|
|
pci_write_config_byte(pdev, 0x69, ctl);
|
|
|
|
RTL_W16(IntrMitigate, 0x5151);
|
|
|
|
/* Work around for RxFIFO overflow. */
|
|
if (tp->mac_version == RTL_GIGA_MAC_VER_11) {
|
|
tp->intr_event |= RxFIFOOver | PCSTimeout;
|
|
tp->intr_event &= ~RxOverflow;
|
|
}
|
|
|
|
rtl_set_rx_tx_desc_registers(tp, ioaddr);
|
|
|
|
RTL_W8(Cfg9346, Cfg9346_Lock);
|
|
|
|
RTL_R8(IntrMask);
|
|
|
|
RTL_W32(RxMissed, 0);
|
|
|
|
rtl_set_rx_mode(dev);
|
|
|
|
RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb);
|
|
|
|
RTL_W16(MultiIntr, RTL_R16(MultiIntr) & 0xF000);
|
|
|
|
RTL_W16(IntrMask, tp->intr_event);
|
|
}
|
|
|
|
static void rtl_hw_start_8101(struct net_device *dev)
|
|
{
|
|
struct rtl8169_private *tp = netdev_priv(dev);
|
|
void __iomem *ioaddr = tp->mmio_addr;
|
|
struct pci_dev *pdev = tp->pci_dev;
|
|
|
|
if ((tp->mac_version == RTL_GIGA_MAC_VER_13) ||
|
|
(tp->mac_version == RTL_GIGA_MAC_VER_16)) {
|
|
pci_write_config_word(pdev, 0x68, 0x00);
|
|
pci_write_config_word(pdev, 0x69, 0x08);
|
|
}
|
|
|
|
RTL_W8(Cfg9346, Cfg9346_Unlock);
|
|
|
|
RTL_W8(EarlyTxThres, EarlyTxThld);
|
|
|
|
rtl_set_rx_max_size(ioaddr);
|
|
|
|
tp->cp_cmd |= rtl_rw_cpluscmd(ioaddr) | PCIMulRW;
|
|
|
|
RTL_W16(CPlusCmd, tp->cp_cmd);
|
|
|
|
RTL_W16(IntrMitigate, 0x0000);
|
|
|
|
rtl_set_rx_tx_desc_registers(tp, ioaddr);
|
|
|
|
RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb);
|
|
rtl_set_rx_tx_config_registers(tp);
|
|
|
|
RTL_W8(Cfg9346, Cfg9346_Lock);
|
|
|
|
RTL_R8(IntrMask);
|
|
|
|
RTL_W32(RxMissed, 0);
|
|
|
|
rtl_set_rx_mode(dev);
|
|
|
|
RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb);
|
|
|
|
RTL_W16(MultiIntr, RTL_R16(MultiIntr) & 0xf000);
|
|
|
|
RTL_W16(IntrMask, tp->intr_event);
|
|
}
|
|
|
|
static int rtl8169_change_mtu(struct net_device *dev, int new_mtu)
|
|
{
|
|
struct rtl8169_private *tp = netdev_priv(dev);
|
|
int ret = 0;
|
|
|
|
if (new_mtu < ETH_ZLEN || new_mtu > SafeMtu)
|
|
return -EINVAL;
|
|
|
|
dev->mtu = new_mtu;
|
|
|
|
if (!netif_running(dev))
|
|
goto out;
|
|
|
|
rtl8169_down(dev);
|
|
|
|
rtl8169_set_rxbufsize(tp, dev);
|
|
|
|
ret = rtl8169_init_ring(dev);
|
|
if (ret < 0)
|
|
goto out;
|
|
|
|
#ifdef CONFIG_R8169_NAPI
|
|
napi_enable(&tp->napi);
|
|
#endif
|
|
|
|
rtl_hw_start(dev);
|
|
|
|
rtl8169_request_timer(dev);
|
|
|
|
out:
|
|
return ret;
|
|
}
|
|
|
|
static inline void rtl8169_make_unusable_by_asic(struct RxDesc *desc)
|
|
{
|
|
desc->addr = 0x0badbadbadbadbadull;
|
|
desc->opts1 &= ~cpu_to_le32(DescOwn | RsvdMask);
|
|
}
|
|
|
|
static void rtl8169_free_rx_skb(struct rtl8169_private *tp,
|
|
struct sk_buff **sk_buff, struct RxDesc *desc)
|
|
{
|
|
struct pci_dev *pdev = tp->pci_dev;
|
|
|
|
pci_unmap_single(pdev, le64_to_cpu(desc->addr), tp->rx_buf_sz,
|
|
PCI_DMA_FROMDEVICE);
|
|
dev_kfree_skb(*sk_buff);
|
|
*sk_buff = NULL;
|
|
rtl8169_make_unusable_by_asic(desc);
|
|
}
|
|
|
|
static inline void rtl8169_mark_to_asic(struct RxDesc *desc, u32 rx_buf_sz)
|
|
{
|
|
u32 eor = le32_to_cpu(desc->opts1) & RingEnd;
|
|
|
|
desc->opts1 = cpu_to_le32(DescOwn | eor | rx_buf_sz);
|
|
}
|
|
|
|
static inline void rtl8169_map_to_asic(struct RxDesc *desc, dma_addr_t mapping,
|
|
u32 rx_buf_sz)
|
|
{
|
|
desc->addr = cpu_to_le64(mapping);
|
|
wmb();
|
|
rtl8169_mark_to_asic(desc, rx_buf_sz);
|
|
}
|
|
|
|
static struct sk_buff *rtl8169_alloc_rx_skb(struct pci_dev *pdev,
|
|
struct net_device *dev,
|
|
struct RxDesc *desc, int rx_buf_sz,
|
|
unsigned int align)
|
|
{
|
|
struct sk_buff *skb;
|
|
dma_addr_t mapping;
|
|
unsigned int pad;
|
|
|
|
pad = align ? align : NET_IP_ALIGN;
|
|
|
|
skb = netdev_alloc_skb(dev, rx_buf_sz + pad);
|
|
if (!skb)
|
|
goto err_out;
|
|
|
|
skb_reserve(skb, align ? ((pad - 1) & (unsigned long)skb->data) : pad);
|
|
|
|
mapping = pci_map_single(pdev, skb->data, rx_buf_sz,
|
|
PCI_DMA_FROMDEVICE);
|
|
|
|
rtl8169_map_to_asic(desc, mapping, rx_buf_sz);
|
|
out:
|
|
return skb;
|
|
|
|
err_out:
|
|
rtl8169_make_unusable_by_asic(desc);
|
|
goto out;
|
|
}
|
|
|
|
static void rtl8169_rx_clear(struct rtl8169_private *tp)
|
|
{
|
|
unsigned int i;
|
|
|
|
for (i = 0; i < NUM_RX_DESC; i++) {
|
|
if (tp->Rx_skbuff[i]) {
|
|
rtl8169_free_rx_skb(tp, tp->Rx_skbuff + i,
|
|
tp->RxDescArray + i);
|
|
}
|
|
}
|
|
}
|
|
|
|
static u32 rtl8169_rx_fill(struct rtl8169_private *tp, struct net_device *dev,
|
|
u32 start, u32 end)
|
|
{
|
|
u32 cur;
|
|
|
|
for (cur = start; end - cur != 0; cur++) {
|
|
struct sk_buff *skb;
|
|
unsigned int i = cur % NUM_RX_DESC;
|
|
|
|
WARN_ON((s32)(end - cur) < 0);
|
|
|
|
if (tp->Rx_skbuff[i])
|
|
continue;
|
|
|
|
skb = rtl8169_alloc_rx_skb(tp->pci_dev, dev,
|
|
tp->RxDescArray + i,
|
|
tp->rx_buf_sz, tp->align);
|
|
if (!skb)
|
|
break;
|
|
|
|
tp->Rx_skbuff[i] = skb;
|
|
}
|
|
return cur - start;
|
|
}
|
|
|
|
static inline void rtl8169_mark_as_last_descriptor(struct RxDesc *desc)
|
|
{
|
|
desc->opts1 |= cpu_to_le32(RingEnd);
|
|
}
|
|
|
|
static void rtl8169_init_ring_indexes(struct rtl8169_private *tp)
|
|
{
|
|
tp->dirty_tx = tp->dirty_rx = tp->cur_tx = tp->cur_rx = 0;
|
|
}
|
|
|
|
static int rtl8169_init_ring(struct net_device *dev)
|
|
{
|
|
struct rtl8169_private *tp = netdev_priv(dev);
|
|
|
|
rtl8169_init_ring_indexes(tp);
|
|
|
|
memset(tp->tx_skb, 0x0, NUM_TX_DESC * sizeof(struct ring_info));
|
|
memset(tp->Rx_skbuff, 0x0, NUM_RX_DESC * sizeof(struct sk_buff *));
|
|
|
|
if (rtl8169_rx_fill(tp, dev, 0, NUM_RX_DESC) != NUM_RX_DESC)
|
|
goto err_out;
|
|
|
|
rtl8169_mark_as_last_descriptor(tp->RxDescArray + NUM_RX_DESC - 1);
|
|
|
|
return 0;
|
|
|
|
err_out:
|
|
rtl8169_rx_clear(tp);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
static void rtl8169_unmap_tx_skb(struct pci_dev *pdev, struct ring_info *tx_skb,
|
|
struct TxDesc *desc)
|
|
{
|
|
unsigned int len = tx_skb->len;
|
|
|
|
pci_unmap_single(pdev, le64_to_cpu(desc->addr), len, PCI_DMA_TODEVICE);
|
|
desc->opts1 = 0x00;
|
|
desc->opts2 = 0x00;
|
|
desc->addr = 0x00;
|
|
tx_skb->len = 0;
|
|
}
|
|
|
|
static void rtl8169_tx_clear(struct rtl8169_private *tp)
|
|
{
|
|
unsigned int i;
|
|
|
|
for (i = tp->dirty_tx; i < tp->dirty_tx + NUM_TX_DESC; i++) {
|
|
unsigned int entry = i % NUM_TX_DESC;
|
|
struct ring_info *tx_skb = tp->tx_skb + entry;
|
|
unsigned int len = tx_skb->len;
|
|
|
|
if (len) {
|
|
struct sk_buff *skb = tx_skb->skb;
|
|
|
|
rtl8169_unmap_tx_skb(tp->pci_dev, tx_skb,
|
|
tp->TxDescArray + entry);
|
|
if (skb) {
|
|
dev_kfree_skb(skb);
|
|
tx_skb->skb = NULL;
|
|
}
|
|
tp->dev->stats.tx_dropped++;
|
|
}
|
|
}
|
|
tp->cur_tx = tp->dirty_tx = 0;
|
|
}
|
|
|
|
static void rtl8169_schedule_work(struct net_device *dev, work_func_t task)
|
|
{
|
|
struct rtl8169_private *tp = netdev_priv(dev);
|
|
|
|
PREPARE_DELAYED_WORK(&tp->task, task);
|
|
schedule_delayed_work(&tp->task, 4);
|
|
}
|
|
|
|
static void rtl8169_wait_for_quiescence(struct net_device *dev)
|
|
{
|
|
struct rtl8169_private *tp = netdev_priv(dev);
|
|
void __iomem *ioaddr = tp->mmio_addr;
|
|
|
|
synchronize_irq(dev->irq);
|
|
|
|
/* Wait for any pending NAPI task to complete */
|
|
#ifdef CONFIG_R8169_NAPI
|
|
napi_disable(&tp->napi);
|
|
#endif
|
|
|
|
rtl8169_irq_mask_and_ack(ioaddr);
|
|
|
|
#ifdef CONFIG_R8169_NAPI
|
|
napi_enable(&tp->napi);
|
|
#endif
|
|
}
|
|
|
|
static void rtl8169_reinit_task(struct work_struct *work)
|
|
{
|
|
struct rtl8169_private *tp =
|
|
container_of(work, struct rtl8169_private, task.work);
|
|
struct net_device *dev = tp->dev;
|
|
int ret;
|
|
|
|
rtnl_lock();
|
|
|
|
if (!netif_running(dev))
|
|
goto out_unlock;
|
|
|
|
rtl8169_wait_for_quiescence(dev);
|
|
rtl8169_close(dev);
|
|
|
|
ret = rtl8169_open(dev);
|
|
if (unlikely(ret < 0)) {
|
|
if (net_ratelimit() && netif_msg_drv(tp)) {
|
|
printk(KERN_ERR PFX "%s: reinit failure (status = %d)."
|
|
" Rescheduling.\n", dev->name, ret);
|
|
}
|
|
rtl8169_schedule_work(dev, rtl8169_reinit_task);
|
|
}
|
|
|
|
out_unlock:
|
|
rtnl_unlock();
|
|
}
|
|
|
|
static void rtl8169_reset_task(struct work_struct *work)
|
|
{
|
|
struct rtl8169_private *tp =
|
|
container_of(work, struct rtl8169_private, task.work);
|
|
struct net_device *dev = tp->dev;
|
|
|
|
rtnl_lock();
|
|
|
|
if (!netif_running(dev))
|
|
goto out_unlock;
|
|
|
|
rtl8169_wait_for_quiescence(dev);
|
|
|
|
rtl8169_rx_interrupt(dev, tp, tp->mmio_addr, ~(u32)0);
|
|
rtl8169_tx_clear(tp);
|
|
|
|
if (tp->dirty_rx == tp->cur_rx) {
|
|
rtl8169_init_ring_indexes(tp);
|
|
rtl_hw_start(dev);
|
|
netif_wake_queue(dev);
|
|
rtl8169_check_link_status(dev, tp, tp->mmio_addr);
|
|
} else {
|
|
if (net_ratelimit() && netif_msg_intr(tp)) {
|
|
printk(KERN_EMERG PFX "%s: Rx buffers shortage\n",
|
|
dev->name);
|
|
}
|
|
rtl8169_schedule_work(dev, rtl8169_reset_task);
|
|
}
|
|
|
|
out_unlock:
|
|
rtnl_unlock();
|
|
}
|
|
|
|
static void rtl8169_tx_timeout(struct net_device *dev)
|
|
{
|
|
struct rtl8169_private *tp = netdev_priv(dev);
|
|
|
|
rtl8169_hw_reset(tp->mmio_addr);
|
|
|
|
/* Let's wait a bit while any (async) irq lands on */
|
|
rtl8169_schedule_work(dev, rtl8169_reset_task);
|
|
}
|
|
|
|
static int rtl8169_xmit_frags(struct rtl8169_private *tp, struct sk_buff *skb,
|
|
u32 opts1)
|
|
{
|
|
struct skb_shared_info *info = skb_shinfo(skb);
|
|
unsigned int cur_frag, entry;
|
|
struct TxDesc * uninitialized_var(txd);
|
|
|
|
entry = tp->cur_tx;
|
|
for (cur_frag = 0; cur_frag < info->nr_frags; cur_frag++) {
|
|
skb_frag_t *frag = info->frags + cur_frag;
|
|
dma_addr_t mapping;
|
|
u32 status, len;
|
|
void *addr;
|
|
|
|
entry = (entry + 1) % NUM_TX_DESC;
|
|
|
|
txd = tp->TxDescArray + entry;
|
|
len = frag->size;
|
|
addr = ((void *) page_address(frag->page)) + frag->page_offset;
|
|
mapping = pci_map_single(tp->pci_dev, addr, len, PCI_DMA_TODEVICE);
|
|
|
|
/* anti gcc 2.95.3 bugware (sic) */
|
|
status = opts1 | len | (RingEnd * !((entry + 1) % NUM_TX_DESC));
|
|
|
|
txd->opts1 = cpu_to_le32(status);
|
|
txd->addr = cpu_to_le64(mapping);
|
|
|
|
tp->tx_skb[entry].len = len;
|
|
}
|
|
|
|
if (cur_frag) {
|
|
tp->tx_skb[entry].skb = skb;
|
|
txd->opts1 |= cpu_to_le32(LastFrag);
|
|
}
|
|
|
|
return cur_frag;
|
|
}
|
|
|
|
static inline u32 rtl8169_tso_csum(struct sk_buff *skb, struct net_device *dev)
|
|
{
|
|
if (dev->features & NETIF_F_TSO) {
|
|
u32 mss = skb_shinfo(skb)->gso_size;
|
|
|
|
if (mss)
|
|
return LargeSend | ((mss & MSSMask) << MSSShift);
|
|
}
|
|
if (skb->ip_summed == CHECKSUM_PARTIAL) {
|
|
const struct iphdr *ip = ip_hdr(skb);
|
|
|
|
if (ip->protocol == IPPROTO_TCP)
|
|
return IPCS | TCPCS;
|
|
else if (ip->protocol == IPPROTO_UDP)
|
|
return IPCS | UDPCS;
|
|
WARN_ON(1); /* we need a WARN() */
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int rtl8169_start_xmit(struct sk_buff *skb, struct net_device *dev)
|
|
{
|
|
struct rtl8169_private *tp = netdev_priv(dev);
|
|
unsigned int frags, entry = tp->cur_tx % NUM_TX_DESC;
|
|
struct TxDesc *txd = tp->TxDescArray + entry;
|
|
void __iomem *ioaddr = tp->mmio_addr;
|
|
dma_addr_t mapping;
|
|
u32 status, len;
|
|
u32 opts1;
|
|
int ret = NETDEV_TX_OK;
|
|
|
|
if (unlikely(TX_BUFFS_AVAIL(tp) < skb_shinfo(skb)->nr_frags)) {
|
|
if (netif_msg_drv(tp)) {
|
|
printk(KERN_ERR
|
|
"%s: BUG! Tx Ring full when queue awake!\n",
|
|
dev->name);
|
|
}
|
|
goto err_stop;
|
|
}
|
|
|
|
if (unlikely(le32_to_cpu(txd->opts1) & DescOwn))
|
|
goto err_stop;
|
|
|
|
opts1 = DescOwn | rtl8169_tso_csum(skb, dev);
|
|
|
|
frags = rtl8169_xmit_frags(tp, skb, opts1);
|
|
if (frags) {
|
|
len = skb_headlen(skb);
|
|
opts1 |= FirstFrag;
|
|
} else {
|
|
len = skb->len;
|
|
|
|
if (unlikely(len < ETH_ZLEN)) {
|
|
if (skb_padto(skb, ETH_ZLEN))
|
|
goto err_update_stats;
|
|
len = ETH_ZLEN;
|
|
}
|
|
|
|
opts1 |= FirstFrag | LastFrag;
|
|
tp->tx_skb[entry].skb = skb;
|
|
}
|
|
|
|
mapping = pci_map_single(tp->pci_dev, skb->data, len, PCI_DMA_TODEVICE);
|
|
|
|
tp->tx_skb[entry].len = len;
|
|
txd->addr = cpu_to_le64(mapping);
|
|
txd->opts2 = cpu_to_le32(rtl8169_tx_vlan_tag(tp, skb));
|
|
|
|
wmb();
|
|
|
|
/* anti gcc 2.95.3 bugware (sic) */
|
|
status = opts1 | len | (RingEnd * !((entry + 1) % NUM_TX_DESC));
|
|
txd->opts1 = cpu_to_le32(status);
|
|
|
|
dev->trans_start = jiffies;
|
|
|
|
tp->cur_tx += frags + 1;
|
|
|
|
smp_wmb();
|
|
|
|
RTL_W8(TxPoll, NPQ); /* set polling bit */
|
|
|
|
if (TX_BUFFS_AVAIL(tp) < MAX_SKB_FRAGS) {
|
|
netif_stop_queue(dev);
|
|
smp_rmb();
|
|
if (TX_BUFFS_AVAIL(tp) >= MAX_SKB_FRAGS)
|
|
netif_wake_queue(dev);
|
|
}
|
|
|
|
out:
|
|
return ret;
|
|
|
|
err_stop:
|
|
netif_stop_queue(dev);
|
|
ret = NETDEV_TX_BUSY;
|
|
err_update_stats:
|
|
dev->stats.tx_dropped++;
|
|
goto out;
|
|
}
|
|
|
|
static void rtl8169_pcierr_interrupt(struct net_device *dev)
|
|
{
|
|
struct rtl8169_private *tp = netdev_priv(dev);
|
|
struct pci_dev *pdev = tp->pci_dev;
|
|
void __iomem *ioaddr = tp->mmio_addr;
|
|
u16 pci_status, pci_cmd;
|
|
|
|
pci_read_config_word(pdev, PCI_COMMAND, &pci_cmd);
|
|
pci_read_config_word(pdev, PCI_STATUS, &pci_status);
|
|
|
|
if (netif_msg_intr(tp)) {
|
|
printk(KERN_ERR
|
|
"%s: PCI error (cmd = 0x%04x, status = 0x%04x).\n",
|
|
dev->name, pci_cmd, pci_status);
|
|
}
|
|
|
|
/*
|
|
* The recovery sequence below admits a very elaborated explanation:
|
|
* - it seems to work;
|
|
* - I did not see what else could be done;
|
|
* - it makes iop3xx happy.
|
|
*
|
|
* Feel free to adjust to your needs.
|
|
*/
|
|
if (pdev->broken_parity_status)
|
|
pci_cmd &= ~PCI_COMMAND_PARITY;
|
|
else
|
|
pci_cmd |= PCI_COMMAND_SERR | PCI_COMMAND_PARITY;
|
|
|
|
pci_write_config_word(pdev, PCI_COMMAND, pci_cmd);
|
|
|
|
pci_write_config_word(pdev, PCI_STATUS,
|
|
pci_status & (PCI_STATUS_DETECTED_PARITY |
|
|
PCI_STATUS_SIG_SYSTEM_ERROR | PCI_STATUS_REC_MASTER_ABORT |
|
|
PCI_STATUS_REC_TARGET_ABORT | PCI_STATUS_SIG_TARGET_ABORT));
|
|
|
|
/* The infamous DAC f*ckup only happens at boot time */
|
|
if ((tp->cp_cmd & PCIDAC) && !tp->dirty_rx && !tp->cur_rx) {
|
|
if (netif_msg_intr(tp))
|
|
printk(KERN_INFO "%s: disabling PCI DAC.\n", dev->name);
|
|
tp->cp_cmd &= ~PCIDAC;
|
|
RTL_W16(CPlusCmd, tp->cp_cmd);
|
|
dev->features &= ~NETIF_F_HIGHDMA;
|
|
}
|
|
|
|
rtl8169_hw_reset(ioaddr);
|
|
|
|
rtl8169_schedule_work(dev, rtl8169_reinit_task);
|
|
}
|
|
|
|
static void rtl8169_tx_interrupt(struct net_device *dev,
|
|
struct rtl8169_private *tp,
|
|
void __iomem *ioaddr)
|
|
{
|
|
unsigned int dirty_tx, tx_left;
|
|
|
|
dirty_tx = tp->dirty_tx;
|
|
smp_rmb();
|
|
tx_left = tp->cur_tx - dirty_tx;
|
|
|
|
while (tx_left > 0) {
|
|
unsigned int entry = dirty_tx % NUM_TX_DESC;
|
|
struct ring_info *tx_skb = tp->tx_skb + entry;
|
|
u32 len = tx_skb->len;
|
|
u32 status;
|
|
|
|
rmb();
|
|
status = le32_to_cpu(tp->TxDescArray[entry].opts1);
|
|
if (status & DescOwn)
|
|
break;
|
|
|
|
dev->stats.tx_bytes += len;
|
|
dev->stats.tx_packets++;
|
|
|
|
rtl8169_unmap_tx_skb(tp->pci_dev, tx_skb, tp->TxDescArray + entry);
|
|
|
|
if (status & LastFrag) {
|
|
dev_kfree_skb_irq(tx_skb->skb);
|
|
tx_skb->skb = NULL;
|
|
}
|
|
dirty_tx++;
|
|
tx_left--;
|
|
}
|
|
|
|
if (tp->dirty_tx != dirty_tx) {
|
|
tp->dirty_tx = dirty_tx;
|
|
smp_wmb();
|
|
if (netif_queue_stopped(dev) &&
|
|
(TX_BUFFS_AVAIL(tp) >= MAX_SKB_FRAGS)) {
|
|
netif_wake_queue(dev);
|
|
}
|
|
/*
|
|
* 8168 hack: TxPoll requests are lost when the Tx packets are
|
|
* too close. Let's kick an extra TxPoll request when a burst
|
|
* of start_xmit activity is detected (if it is not detected,
|
|
* it is slow enough). -- FR
|
|
*/
|
|
smp_rmb();
|
|
if (tp->cur_tx != dirty_tx)
|
|
RTL_W8(TxPoll, NPQ);
|
|
}
|
|
}
|
|
|
|
static inline int rtl8169_fragmented_frame(u32 status)
|
|
{
|
|
return (status & (FirstFrag | LastFrag)) != (FirstFrag | LastFrag);
|
|
}
|
|
|
|
static inline void rtl8169_rx_csum(struct sk_buff *skb, struct RxDesc *desc)
|
|
{
|
|
u32 opts1 = le32_to_cpu(desc->opts1);
|
|
u32 status = opts1 & RxProtoMask;
|
|
|
|
if (((status == RxProtoTCP) && !(opts1 & TCPFail)) ||
|
|
((status == RxProtoUDP) && !(opts1 & UDPFail)) ||
|
|
((status == RxProtoIP) && !(opts1 & IPFail)))
|
|
skb->ip_summed = CHECKSUM_UNNECESSARY;
|
|
else
|
|
skb->ip_summed = CHECKSUM_NONE;
|
|
}
|
|
|
|
static inline bool rtl8169_try_rx_copy(struct sk_buff **sk_buff,
|
|
struct rtl8169_private *tp, int pkt_size,
|
|
dma_addr_t addr)
|
|
{
|
|
struct sk_buff *skb;
|
|
bool done = false;
|
|
|
|
if (pkt_size >= rx_copybreak)
|
|
goto out;
|
|
|
|
skb = netdev_alloc_skb(tp->dev, pkt_size + NET_IP_ALIGN);
|
|
if (!skb)
|
|
goto out;
|
|
|
|
pci_dma_sync_single_for_cpu(tp->pci_dev, addr, pkt_size,
|
|
PCI_DMA_FROMDEVICE);
|
|
skb_reserve(skb, NET_IP_ALIGN);
|
|
skb_copy_from_linear_data(*sk_buff, skb->data, pkt_size);
|
|
*sk_buff = skb;
|
|
done = true;
|
|
out:
|
|
return done;
|
|
}
|
|
|
|
static int rtl8169_rx_interrupt(struct net_device *dev,
|
|
struct rtl8169_private *tp,
|
|
void __iomem *ioaddr, u32 budget)
|
|
{
|
|
unsigned int cur_rx, rx_left;
|
|
unsigned int delta, count;
|
|
|
|
cur_rx = tp->cur_rx;
|
|
rx_left = NUM_RX_DESC + tp->dirty_rx - cur_rx;
|
|
rx_left = rtl8169_rx_quota(rx_left, budget);
|
|
|
|
for (; rx_left > 0; rx_left--, cur_rx++) {
|
|
unsigned int entry = cur_rx % NUM_RX_DESC;
|
|
struct RxDesc *desc = tp->RxDescArray + entry;
|
|
u32 status;
|
|
|
|
rmb();
|
|
status = le32_to_cpu(desc->opts1);
|
|
|
|
if (status & DescOwn)
|
|
break;
|
|
if (unlikely(status & RxRES)) {
|
|
if (netif_msg_rx_err(tp)) {
|
|
printk(KERN_INFO
|
|
"%s: Rx ERROR. status = %08x\n",
|
|
dev->name, status);
|
|
}
|
|
dev->stats.rx_errors++;
|
|
if (status & (RxRWT | RxRUNT))
|
|
dev->stats.rx_length_errors++;
|
|
if (status & RxCRC)
|
|
dev->stats.rx_crc_errors++;
|
|
if (status & RxFOVF) {
|
|
rtl8169_schedule_work(dev, rtl8169_reset_task);
|
|
dev->stats.rx_fifo_errors++;
|
|
}
|
|
rtl8169_mark_to_asic(desc, tp->rx_buf_sz);
|
|
} else {
|
|
struct sk_buff *skb = tp->Rx_skbuff[entry];
|
|
dma_addr_t addr = le64_to_cpu(desc->addr);
|
|
int pkt_size = (status & 0x00001FFF) - 4;
|
|
struct pci_dev *pdev = tp->pci_dev;
|
|
|
|
/*
|
|
* The driver does not support incoming fragmented
|
|
* frames. They are seen as a symptom of over-mtu
|
|
* sized frames.
|
|
*/
|
|
if (unlikely(rtl8169_fragmented_frame(status))) {
|
|
dev->stats.rx_dropped++;
|
|
dev->stats.rx_length_errors++;
|
|
rtl8169_mark_to_asic(desc, tp->rx_buf_sz);
|
|
continue;
|
|
}
|
|
|
|
rtl8169_rx_csum(skb, desc);
|
|
|
|
if (rtl8169_try_rx_copy(&skb, tp, pkt_size, addr)) {
|
|
pci_dma_sync_single_for_device(pdev, addr,
|
|
pkt_size, PCI_DMA_FROMDEVICE);
|
|
rtl8169_mark_to_asic(desc, tp->rx_buf_sz);
|
|
} else {
|
|
pci_unmap_single(pdev, addr, pkt_size,
|
|
PCI_DMA_FROMDEVICE);
|
|
tp->Rx_skbuff[entry] = NULL;
|
|
}
|
|
|
|
skb_put(skb, pkt_size);
|
|
skb->protocol = eth_type_trans(skb, dev);
|
|
|
|
if (rtl8169_rx_vlan_skb(tp, desc, skb) < 0)
|
|
rtl8169_rx_skb(skb);
|
|
|
|
dev->last_rx = jiffies;
|
|
dev->stats.rx_bytes += pkt_size;
|
|
dev->stats.rx_packets++;
|
|
}
|
|
|
|
/* Work around for AMD plateform. */
|
|
if ((desc->opts2 & 0xfffe000) &&
|
|
(tp->mac_version == RTL_GIGA_MAC_VER_05)) {
|
|
desc->opts2 = 0;
|
|
cur_rx++;
|
|
}
|
|
}
|
|
|
|
count = cur_rx - tp->cur_rx;
|
|
tp->cur_rx = cur_rx;
|
|
|
|
delta = rtl8169_rx_fill(tp, dev, tp->dirty_rx, tp->cur_rx);
|
|
if (!delta && count && netif_msg_intr(tp))
|
|
printk(KERN_INFO "%s: no Rx buffer allocated\n", dev->name);
|
|
tp->dirty_rx += delta;
|
|
|
|
/*
|
|
* FIXME: until there is periodic timer to try and refill the ring,
|
|
* a temporary shortage may definitely kill the Rx process.
|
|
* - disable the asic to try and avoid an overflow and kick it again
|
|
* after refill ?
|
|
* - how do others driver handle this condition (Uh oh...).
|
|
*/
|
|
if ((tp->dirty_rx + NUM_RX_DESC == tp->cur_rx) && netif_msg_intr(tp))
|
|
printk(KERN_EMERG "%s: Rx buffers exhausted\n", dev->name);
|
|
|
|
return count;
|
|
}
|
|
|
|
static irqreturn_t rtl8169_interrupt(int irq, void *dev_instance)
|
|
{
|
|
struct net_device *dev = dev_instance;
|
|
struct rtl8169_private *tp = netdev_priv(dev);
|
|
int boguscnt = max_interrupt_work;
|
|
void __iomem *ioaddr = tp->mmio_addr;
|
|
int status;
|
|
int handled = 0;
|
|
|
|
do {
|
|
status = RTL_R16(IntrStatus);
|
|
|
|
/* hotplug/major error/no more work/shared irq */
|
|
if ((status == 0xFFFF) || !status)
|
|
break;
|
|
|
|
handled = 1;
|
|
|
|
if (unlikely(!netif_running(dev))) {
|
|
rtl8169_asic_down(ioaddr);
|
|
goto out;
|
|
}
|
|
|
|
status &= tp->intr_mask;
|
|
RTL_W16(IntrStatus,
|
|
(status & RxFIFOOver) ? (status | RxOverflow) : status);
|
|
|
|
if (!(status & tp->intr_event))
|
|
break;
|
|
|
|
/* Work around for rx fifo overflow */
|
|
if (unlikely(status & RxFIFOOver) &&
|
|
(tp->mac_version == RTL_GIGA_MAC_VER_11)) {
|
|
netif_stop_queue(dev);
|
|
rtl8169_tx_timeout(dev);
|
|
break;
|
|
}
|
|
|
|
if (unlikely(status & SYSErr)) {
|
|
rtl8169_pcierr_interrupt(dev);
|
|
break;
|
|
}
|
|
|
|
if (status & LinkChg)
|
|
rtl8169_check_link_status(dev, tp, ioaddr);
|
|
|
|
#ifdef CONFIG_R8169_NAPI
|
|
if (status & tp->napi_event) {
|
|
RTL_W16(IntrMask, tp->intr_event & ~tp->napi_event);
|
|
tp->intr_mask = ~tp->napi_event;
|
|
|
|
if (likely(netif_rx_schedule_prep(dev, &tp->napi)))
|
|
__netif_rx_schedule(dev, &tp->napi);
|
|
else if (netif_msg_intr(tp)) {
|
|
printk(KERN_INFO "%s: interrupt %04x in poll\n",
|
|
dev->name, status);
|
|
}
|
|
}
|
|
break;
|
|
#else
|
|
/* Rx interrupt */
|
|
if (status & (RxOK | RxOverflow | RxFIFOOver))
|
|
rtl8169_rx_interrupt(dev, tp, ioaddr, ~(u32)0);
|
|
|
|
/* Tx interrupt */
|
|
if (status & (TxOK | TxErr))
|
|
rtl8169_tx_interrupt(dev, tp, ioaddr);
|
|
#endif
|
|
|
|
boguscnt--;
|
|
} while (boguscnt > 0);
|
|
|
|
if (boguscnt <= 0) {
|
|
if (netif_msg_intr(tp) && net_ratelimit() ) {
|
|
printk(KERN_WARNING
|
|
"%s: Too much work at interrupt!\n", dev->name);
|
|
}
|
|
/* Clear all interrupt sources. */
|
|
RTL_W16(IntrStatus, 0xffff);
|
|
}
|
|
out:
|
|
return IRQ_RETVAL(handled);
|
|
}
|
|
|
|
#ifdef CONFIG_R8169_NAPI
|
|
static int rtl8169_poll(struct napi_struct *napi, int budget)
|
|
{
|
|
struct rtl8169_private *tp = container_of(napi, struct rtl8169_private, napi);
|
|
struct net_device *dev = tp->dev;
|
|
void __iomem *ioaddr = tp->mmio_addr;
|
|
int work_done;
|
|
|
|
work_done = rtl8169_rx_interrupt(dev, tp, ioaddr, (u32) budget);
|
|
rtl8169_tx_interrupt(dev, tp, ioaddr);
|
|
|
|
if (work_done < budget) {
|
|
netif_rx_complete(dev, napi);
|
|
tp->intr_mask = 0xffff;
|
|
/*
|
|
* 20040426: the barrier is not strictly required but the
|
|
* behavior of the irq handler could be less predictable
|
|
* without it. Btw, the lack of flush for the posted pci
|
|
* write is safe - FR
|
|
*/
|
|
smp_wmb();
|
|
RTL_W16(IntrMask, tp->intr_event);
|
|
}
|
|
|
|
return work_done;
|
|
}
|
|
#endif
|
|
|
|
static void rtl8169_down(struct net_device *dev)
|
|
{
|
|
struct rtl8169_private *tp = netdev_priv(dev);
|
|
void __iomem *ioaddr = tp->mmio_addr;
|
|
unsigned int poll_locked = 0;
|
|
unsigned int intrmask;
|
|
|
|
rtl8169_delete_timer(dev);
|
|
|
|
netif_stop_queue(dev);
|
|
|
|
core_down:
|
|
spin_lock_irq(&tp->lock);
|
|
|
|
rtl8169_asic_down(ioaddr);
|
|
|
|
/* Update the error counts. */
|
|
dev->stats.rx_missed_errors += RTL_R32(RxMissed);
|
|
RTL_W32(RxMissed, 0);
|
|
|
|
spin_unlock_irq(&tp->lock);
|
|
|
|
synchronize_irq(dev->irq);
|
|
|
|
if (!poll_locked) {
|
|
napi_disable(&tp->napi);
|
|
poll_locked++;
|
|
}
|
|
|
|
/* Give a racing hard_start_xmit a few cycles to complete. */
|
|
synchronize_sched(); /* FIXME: should this be synchronize_irq()? */
|
|
|
|
/*
|
|
* And now for the 50k$ question: are IRQ disabled or not ?
|
|
*
|
|
* Two paths lead here:
|
|
* 1) dev->close
|
|
* -> netif_running() is available to sync the current code and the
|
|
* IRQ handler. See rtl8169_interrupt for details.
|
|
* 2) dev->change_mtu
|
|
* -> rtl8169_poll can not be issued again and re-enable the
|
|
* interruptions. Let's simply issue the IRQ down sequence again.
|
|
*
|
|
* No loop if hotpluged or major error (0xffff).
|
|
*/
|
|
intrmask = RTL_R16(IntrMask);
|
|
if (intrmask && (intrmask != 0xffff))
|
|
goto core_down;
|
|
|
|
rtl8169_tx_clear(tp);
|
|
|
|
rtl8169_rx_clear(tp);
|
|
}
|
|
|
|
static int rtl8169_close(struct net_device *dev)
|
|
{
|
|
struct rtl8169_private *tp = netdev_priv(dev);
|
|
struct pci_dev *pdev = tp->pci_dev;
|
|
|
|
rtl8169_down(dev);
|
|
|
|
free_irq(dev->irq, dev);
|
|
|
|
pci_free_consistent(pdev, R8169_RX_RING_BYTES, tp->RxDescArray,
|
|
tp->RxPhyAddr);
|
|
pci_free_consistent(pdev, R8169_TX_RING_BYTES, tp->TxDescArray,
|
|
tp->TxPhyAddr);
|
|
tp->TxDescArray = NULL;
|
|
tp->RxDescArray = NULL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void rtl_set_rx_mode(struct net_device *dev)
|
|
{
|
|
struct rtl8169_private *tp = netdev_priv(dev);
|
|
void __iomem *ioaddr = tp->mmio_addr;
|
|
unsigned long flags;
|
|
u32 mc_filter[2]; /* Multicast hash filter */
|
|
int rx_mode;
|
|
u32 tmp = 0;
|
|
|
|
if (dev->flags & IFF_PROMISC) {
|
|
/* Unconditionally log net taps. */
|
|
if (netif_msg_link(tp)) {
|
|
printk(KERN_NOTICE "%s: Promiscuous mode enabled.\n",
|
|
dev->name);
|
|
}
|
|
rx_mode =
|
|
AcceptBroadcast | AcceptMulticast | AcceptMyPhys |
|
|
AcceptAllPhys;
|
|
mc_filter[1] = mc_filter[0] = 0xffffffff;
|
|
} else if ((dev->mc_count > multicast_filter_limit)
|
|
|| (dev->flags & IFF_ALLMULTI)) {
|
|
/* Too many to filter perfectly -- accept all multicasts. */
|
|
rx_mode = AcceptBroadcast | AcceptMulticast | AcceptMyPhys;
|
|
mc_filter[1] = mc_filter[0] = 0xffffffff;
|
|
} else {
|
|
struct dev_mc_list *mclist;
|
|
unsigned int i;
|
|
|
|
rx_mode = AcceptBroadcast | AcceptMyPhys;
|
|
mc_filter[1] = mc_filter[0] = 0;
|
|
for (i = 0, mclist = dev->mc_list; mclist && i < dev->mc_count;
|
|
i++, mclist = mclist->next) {
|
|
int bit_nr = ether_crc(ETH_ALEN, mclist->dmi_addr) >> 26;
|
|
mc_filter[bit_nr >> 5] |= 1 << (bit_nr & 31);
|
|
rx_mode |= AcceptMulticast;
|
|
}
|
|
}
|
|
|
|
spin_lock_irqsave(&tp->lock, flags);
|
|
|
|
tmp = rtl8169_rx_config | rx_mode |
|
|
(RTL_R32(RxConfig) & rtl_chip_info[tp->chipset].RxConfigMask);
|
|
|
|
if ((tp->mac_version == RTL_GIGA_MAC_VER_11) ||
|
|
(tp->mac_version == RTL_GIGA_MAC_VER_12) ||
|
|
(tp->mac_version == RTL_GIGA_MAC_VER_13) ||
|
|
(tp->mac_version == RTL_GIGA_MAC_VER_14) ||
|
|
(tp->mac_version == RTL_GIGA_MAC_VER_15) ||
|
|
(tp->mac_version == RTL_GIGA_MAC_VER_16) ||
|
|
(tp->mac_version == RTL_GIGA_MAC_VER_17)) {
|
|
mc_filter[0] = 0xffffffff;
|
|
mc_filter[1] = 0xffffffff;
|
|
}
|
|
|
|
RTL_W32(MAR0 + 0, mc_filter[0]);
|
|
RTL_W32(MAR0 + 4, mc_filter[1]);
|
|
|
|
RTL_W32(RxConfig, tmp);
|
|
|
|
spin_unlock_irqrestore(&tp->lock, flags);
|
|
}
|
|
|
|
/**
|
|
* rtl8169_get_stats - Get rtl8169 read/write statistics
|
|
* @dev: The Ethernet Device to get statistics for
|
|
*
|
|
* Get TX/RX statistics for rtl8169
|
|
*/
|
|
static struct net_device_stats *rtl8169_get_stats(struct net_device *dev)
|
|
{
|
|
struct rtl8169_private *tp = netdev_priv(dev);
|
|
void __iomem *ioaddr = tp->mmio_addr;
|
|
unsigned long flags;
|
|
|
|
if (netif_running(dev)) {
|
|
spin_lock_irqsave(&tp->lock, flags);
|
|
dev->stats.rx_missed_errors += RTL_R32(RxMissed);
|
|
RTL_W32(RxMissed, 0);
|
|
spin_unlock_irqrestore(&tp->lock, flags);
|
|
}
|
|
|
|
return &dev->stats;
|
|
}
|
|
|
|
#ifdef CONFIG_PM
|
|
|
|
static int rtl8169_suspend(struct pci_dev *pdev, pm_message_t state)
|
|
{
|
|
struct net_device *dev = pci_get_drvdata(pdev);
|
|
struct rtl8169_private *tp = netdev_priv(dev);
|
|
void __iomem *ioaddr = tp->mmio_addr;
|
|
|
|
if (!netif_running(dev))
|
|
goto out_pci_suspend;
|
|
|
|
netif_device_detach(dev);
|
|
netif_stop_queue(dev);
|
|
|
|
spin_lock_irq(&tp->lock);
|
|
|
|
rtl8169_asic_down(ioaddr);
|
|
|
|
dev->stats.rx_missed_errors += RTL_R32(RxMissed);
|
|
RTL_W32(RxMissed, 0);
|
|
|
|
spin_unlock_irq(&tp->lock);
|
|
|
|
out_pci_suspend:
|
|
pci_save_state(pdev);
|
|
pci_enable_wake(pdev, pci_choose_state(pdev, state),
|
|
(tp->features & RTL_FEATURE_WOL) ? 1 : 0);
|
|
pci_set_power_state(pdev, pci_choose_state(pdev, state));
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int rtl8169_resume(struct pci_dev *pdev)
|
|
{
|
|
struct net_device *dev = pci_get_drvdata(pdev);
|
|
|
|
pci_set_power_state(pdev, PCI_D0);
|
|
pci_restore_state(pdev);
|
|
pci_enable_wake(pdev, PCI_D0, 0);
|
|
|
|
if (!netif_running(dev))
|
|
goto out;
|
|
|
|
netif_device_attach(dev);
|
|
|
|
rtl8169_schedule_work(dev, rtl8169_reset_task);
|
|
out:
|
|
return 0;
|
|
}
|
|
|
|
#endif /* CONFIG_PM */
|
|
|
|
static struct pci_driver rtl8169_pci_driver = {
|
|
.name = MODULENAME,
|
|
.id_table = rtl8169_pci_tbl,
|
|
.probe = rtl8169_init_one,
|
|
.remove = __devexit_p(rtl8169_remove_one),
|
|
#ifdef CONFIG_PM
|
|
.suspend = rtl8169_suspend,
|
|
.resume = rtl8169_resume,
|
|
#endif
|
|
};
|
|
|
|
static int __init rtl8169_init_module(void)
|
|
{
|
|
return pci_register_driver(&rtl8169_pci_driver);
|
|
}
|
|
|
|
static void __exit rtl8169_cleanup_module(void)
|
|
{
|
|
pci_unregister_driver(&rtl8169_pci_driver);
|
|
}
|
|
|
|
module_init(rtl8169_init_module);
|
|
module_exit(rtl8169_cleanup_module);
|