| /* |
| ========================================================================= |
| r8169.c: A RealTek RTL-8169 Gigabit Ethernet driver for Linux kernel 2.4.x. |
| -------------------------------------------------------------------- |
| |
| History: |
| Feb 4 2002 - created initially by ShuChen <shuchen@realtek.com.tw>. |
| May 20 2002 - Add link status force-mode and TBI mode support. |
| 2004 - Massive updates. See kernel SCM system for details. |
| ========================================================================= |
| 1. [DEPRECATED: use ethtool instead] The media can be forced in 5 modes. |
| Command: 'insmod r8169 media = SET_MEDIA' |
| Ex: 'insmod r8169 media = 0x04' will force PHY to operate in 100Mpbs Half-duplex. |
| |
| SET_MEDIA can be: |
| _10_Half = 0x01 |
| _10_Full = 0x02 |
| _100_Half = 0x04 |
| _100_Full = 0x08 |
| _1000_Full = 0x10 |
| |
| 2. Support TBI mode. |
| ========================================================================= |
| VERSION 1.1 <2002/10/4> |
| |
| The bit4:0 of MII register 4 is called "selector field", and have to be |
| 00001b to indicate support of IEEE std 802.3 during NWay process of |
| exchanging Link Code Word (FLP). |
| |
| VERSION 1.2 <2002/11/30> |
| |
| - Large style cleanup |
| - Use ether_crc in stock kernel (linux/crc32.h) |
| - Copy mc_filter setup code from 8139cp |
| (includes an optimization, and avoids set_bit use) |
| |
| VERSION 1.6LK <2004/04/14> |
| |
| - Merge of Realtek's version 1.6 |
| - Conversion to DMA API |
| - Suspend/resume |
| - Endianness |
| - Misc Rx/Tx bugs |
| |
| VERSION 2.2LK <2005/01/25> |
| |
| - RX csum, TX csum/SG, TSO |
| - VLAN |
| - baby (< 7200) Jumbo frames support |
| - Merge of Realtek's version 2.2 (new phy) |
| */ |
| |
| #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/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(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 |
| |
| /* media options */ |
| #define MAX_UNITS 8 |
| static int media[MAX_UNITS] = { -1, -1, -1, -1, -1, -1, -1, -1 }; |
| static int num_media = 0; |
| |
| /* 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_B = 0x00, |
| /* RTL_GIGA_MAC_VER_C = 0x03, */ |
| RTL_GIGA_MAC_VER_D = 0x01, |
| RTL_GIGA_MAC_VER_E = 0x02, |
| RTL_GIGA_MAC_VER_X = 0x04 /* Greater than RTL_GIGA_MAC_VER_E */ |
| }; |
| |
| enum phy_version { |
| RTL_GIGA_PHY_VER_C = 0x03, /* PHY Reg 0x03 bit0-3 == 0x0000 */ |
| RTL_GIGA_PHY_VER_D = 0x04, /* PHY Reg 0x03 bit0-3 == 0x0000 */ |
| RTL_GIGA_PHY_VER_E = 0x05, /* PHY Reg 0x03 bit0-3 == 0x0000 */ |
| RTL_GIGA_PHY_VER_F = 0x06, /* PHY Reg 0x03 bit0-3 == 0x0001 */ |
| RTL_GIGA_PHY_VER_G = 0x07, /* PHY Reg 0x03 bit0-3 == 0x0002 */ |
| RTL_GIGA_PHY_VER_H = 0x08, /* PHY Reg 0x03 bit0-3 == 0x0003 */ |
| }; |
| |
| |
| #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_B, 0xff7e1880), |
| _R("RTL8169s/8110s", RTL_GIGA_MAC_VER_D, 0xff7e1880), |
| _R("RTL8169s/8110s", RTL_GIGA_MAC_VER_E, 0xff7e1880), |
| _R("RTL8169s/8110s", RTL_GIGA_MAC_VER_X, 0xff7e1880), |
| }; |
| #undef _R |
| |
| static struct pci_device_id rtl8169_pci_tbl[] = { |
| { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8169), }, |
| { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8129), }, |
| { PCI_DEVICE(PCI_VENDOR_ID_DLINK, 0x4300), }, |
| { PCI_DEVICE(0x16ec, 0x0116), }, |
| { PCI_VENDOR_ID_LINKSYS, 0x1032, PCI_ANY_ID, 0x0024, }, |
| {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 RTL8169_registers { |
| MAC0 = 0, /* Ethernet hardware address. */ |
| 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 RTL8169_register_content { |
| /* InterruptStatusBits */ |
| SYSErr = 0x8000, |
| PCSTimeout = 0x4000, |
| SWInt = 0x0100, |
| TxDescUnavail = 0x80, |
| RxFIFOOver = 0x40, |
| LinkChg = 0x20, |
| RxOverflow = 0x10, |
| TxErr = 0x08, |
| TxOK = 0x04, |
| RxErr = 0x02, |
| RxOK = 0x01, |
| |
| /* 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, |
| |
| /* 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 */ |
| PMEnable = (1 << 0), /* Power Management Enable */ |
| |
| /* 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 */ |
| RxVlan = (1 << 6), |
| RxChkSum = (1 << 5), |
| PCIDAC = (1 << 4), |
| PCIMulRW = (1 << 3), |
| |
| /* rtl8169_PHYstatus */ |
| TBI_Enable = 0x80, |
| TxFlowCtrl = 0x40, |
| RxFlowCtrl = 0x20, |
| _1000bpsF = 0x10, |
| _100bps = 0x08, |
| _10bps = 0x04, |
| LinkStatus = 0x02, |
| FullDup = 0x01, |
| |
| /* GIGABIT_PHY_registers */ |
| PHY_CTRL_REG = 0, |
| PHY_STAT_REG = 1, |
| PHY_AUTO_NEGO_REG = 4, |
| PHY_1000_CTRL_REG = 9, |
| |
| /* GIGABIT_PHY_REG_BIT */ |
| PHY_Restart_Auto_Nego = 0x0200, |
| PHY_Enable_Auto_Nego = 0x1000, |
| |
| /* PHY_STAT_REG = 1 */ |
| PHY_Auto_Neco_Comp = 0x0020, |
| |
| /* PHY_AUTO_NEGO_REG = 4 */ |
| PHY_Cap_10_Half = 0x0020, |
| PHY_Cap_10_Full = 0x0040, |
| PHY_Cap_100_Half = 0x0080, |
| PHY_Cap_100_Full = 0x0100, |
| |
| /* PHY_1000_CTRL_REG = 9 */ |
| PHY_Cap_1000_Full = 0x0200, |
| |
| PHY_Cap_Null = 0x0, |
| |
| /* _MediaType */ |
| _10_Half = 0x01, |
| _10_Full = 0x02, |
| _100_Half = 0x04, |
| _100_Full = 0x08, |
| _1000_Full = 0x10, |
| |
| /* _TBICSRBit */ |
| TBILinkOK = 0x02000000, |
| |
| /* DumpCounterCommand */ |
| CounterDump = 0x8, |
| }; |
| |
| enum _DescStatusBit { |
| 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 { |
| u32 opts1; |
| u32 opts2; |
| u64 addr; |
| }; |
| |
| struct RxDesc { |
| u32 opts1; |
| u32 opts2; |
| u64 addr; |
| }; |
| |
| struct ring_info { |
| struct sk_buff *skb; |
| u32 len; |
| u8 __pad[sizeof(void *) - sizeof(u32)]; |
| }; |
| |
| struct rtl8169_private { |
| void __iomem *mmio_addr; /* memory map physical address */ |
| struct pci_dev *pci_dev; /* Index of PCI device */ |
| struct net_device_stats stats; /* statistics of net device */ |
| spinlock_t lock; /* spin lock flag */ |
| u32 msg_enable; |
| int chipset; |
| int mac_version; |
| int phy_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 rx_buf_sz; |
| struct timer_list timer; |
| u16 cp_cmd; |
| 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 *); |
| unsigned int (*phy_reset_pending)(void __iomem *); |
| unsigned int (*link_ok)(void __iomem *); |
| struct work_struct task; |
| unsigned wol_enabled : 1; |
| }; |
| |
| MODULE_AUTHOR("Realtek and the Linux r8169 crew <netdev@vger.kernel.org>"); |
| MODULE_DESCRIPTION("RealTek RTL-8169 Gigabit Ethernet driver"); |
| module_param_array(media, int, &num_media, 0); |
| MODULE_PARM_DESC(media, "force phy operation. Deprecated by ethtool (8)."); |
| 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, |
| struct pt_regs *regs); |
| static int rtl8169_init_ring(struct net_device *dev); |
| static void rtl8169_hw_start(struct net_device *dev); |
| static int rtl8169_close(struct net_device *dev); |
| static void rtl8169_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 *); |
| static int rtl8169_change_mtu(struct net_device *dev, int new_mtu); |
| static void rtl8169_down(struct net_device *dev); |
| |
| #ifdef CONFIG_R8169_NAPI |
| static int rtl8169_poll(struct net_device *dev, int *budget); |
| #endif |
| |
| static const u16 rtl8169_intr_mask = |
| SYSErr | LinkChg | RxOverflow | RxFIFOOver | TxErr | TxOK | RxErr | RxOK; |
| static const u16 rtl8169_napi_event = |
| RxOK | RxOverflow | RxFIFOOver | TxOK | TxErr; |
| static const unsigned int rtl8169_rx_config = |
| (RX_FIFO_THRESH << RxCfgFIFOShift) | (RX_DMA_BURST << RxCfgDMAShift); |
| |
| #define PHY_Cap_10_Half_Or_Less PHY_Cap_10_Half |
| #define PHY_Cap_10_Full_Or_Less PHY_Cap_10_Full | PHY_Cap_10_Half_Or_Less |
| #define PHY_Cap_100_Half_Or_Less PHY_Cap_100_Half | PHY_Cap_10_Full_Or_Less |
| #define PHY_Cap_100_Full_Or_Less PHY_Cap_100_Full | PHY_Cap_100_Half_Or_Less |
| |
| static void mdio_write(void __iomem *ioaddr, int RegAddr, int value) |
| { |
| int i; |
| |
| RTL_W32(PHYAR, 0x80000000 | (RegAddr & 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 RegAddr) |
| { |
| int i, value = -1; |
| |
| RTL_W32(PHYAR, 0x0 | (RegAddr & 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, 0) & 0x8000; |
| } |
| |
| 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, PHY_CTRL_REG) | 0x8000) & 0xffff; |
| mdio_write(ioaddr, PHY_CTRL_REG, val); |
| } |
| |
| 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_link_option(int idx, u8 *autoneg, u16 *speed, u8 *duplex) |
| { |
| struct { |
| u16 speed; |
| u8 duplex; |
| u8 autoneg; |
| u8 media; |
| } link_settings[] = { |
| { SPEED_10, DUPLEX_HALF, AUTONEG_DISABLE, _10_Half }, |
| { SPEED_10, DUPLEX_FULL, AUTONEG_DISABLE, _10_Full }, |
| { SPEED_100, DUPLEX_HALF, AUTONEG_DISABLE, _100_Half }, |
| { SPEED_100, DUPLEX_FULL, AUTONEG_DISABLE, _100_Full }, |
| { SPEED_1000, DUPLEX_FULL, AUTONEG_DISABLE, _1000_Full }, |
| /* Make TBI happy */ |
| { SPEED_1000, DUPLEX_FULL, AUTONEG_ENABLE, 0xff } |
| }, *p; |
| unsigned char option; |
| |
| option = ((idx < MAX_UNITS) && (idx >= 0)) ? media[idx] : 0xff; |
| |
| if ((option != 0xff) && !idx && netif_msg_drv(&debug)) |
| printk(KERN_WARNING PFX "media option is deprecated.\n"); |
| |
| for (p = link_settings; p->media != 0xff; p++) { |
| if (p->media == option) |
| break; |
| } |
| *autoneg = p->autoneg; |
| *speed = p->speed; |
| *duplex = p->duplex; |
| } |
| |
| 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; |
| 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); |
| |
| tp->wol_enabled = (wol->wolopts) ? 1 : 0; |
| |
| 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, PHY_AUTO_NEGO_REG); |
| auto_nego &= ~(PHY_Cap_10_Half | PHY_Cap_10_Full | |
| PHY_Cap_100_Half | PHY_Cap_100_Full); |
| giga_ctrl = mdio_read(ioaddr, PHY_1000_CTRL_REG); |
| giga_ctrl &= ~(PHY_Cap_1000_Full | PHY_Cap_Null); |
| |
| if (autoneg == AUTONEG_ENABLE) { |
| auto_nego |= (PHY_Cap_10_Half | PHY_Cap_10_Full | |
| PHY_Cap_100_Half | PHY_Cap_100_Full); |
| giga_ctrl |= PHY_Cap_1000_Full; |
| } else { |
| if (speed == SPEED_10) |
| auto_nego |= PHY_Cap_10_Half | PHY_Cap_10_Full; |
| else if (speed == SPEED_100) |
| auto_nego |= PHY_Cap_100_Half | PHY_Cap_100_Full; |
| else if (speed == SPEED_1000) |
| giga_ctrl |= PHY_Cap_1000_Full; |
| |
| if (duplex == DUPLEX_HALF) |
| auto_nego &= ~(PHY_Cap_10_Full | PHY_Cap_100_Full); |
| |
| if (duplex == DUPLEX_FULL) |
| auto_nego &= ~(PHY_Cap_10_Half | PHY_Cap_100_Half); |
| } |
| |
| auto_nego |= ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM; |
| |
| tp->phy_auto_nego_reg = auto_nego; |
| tp->phy_1000_ctrl_reg = giga_ctrl; |
| |
| mdio_write(ioaddr, PHY_AUTO_NEGO_REG, auto_nego); |
| mdio_write(ioaddr, PHY_1000_CTRL_REG, giga_ctrl); |
| mdio_write(ioaddr, PHY_CTRL_REG, PHY_Enable_Auto_Nego | |
| PHY_Restart_Auto_Nego); |
| 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 & PHY_Cap_1000_Full)) |
| 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 void rtl8169_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) |
| { |
| struct rtl8169_private *tp = netdev_priv(dev); |
| unsigned long flags; |
| |
| spin_lock_irqsave(&tp->lock, flags); |
| if (tp->vlgrp) |
| tp->vlgrp->vlan_devices[vid] = NULL; |
| 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 & PHY_Cap_10_Half) |
| cmd->advertising |= ADVERTISED_10baseT_Half; |
| if (tp->phy_auto_nego_reg & PHY_Cap_10_Full) |
| cmd->advertising |= ADVERTISED_10baseT_Full; |
| if (tp->phy_auto_nego_reg & PHY_Cap_100_Half) |
| cmd->advertising |= ADVERTISED_100baseT_Half; |
| if (tp->phy_auto_nego_reg & PHY_Cap_100_Full) |
| cmd->advertising |= ADVERTISED_100baseT_Full; |
| if (tp->phy_1000_ctrl_reg & PHY_Cap_1000_Full) |
| 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 { |
| u64 tx_packets; |
| u64 rx_packets; |
| u64 tx_errors; |
| u32 rx_errors; |
| u16 rx_missed; |
| u16 align_errors; |
| u32 tx_one_collision; |
| u32 tx_multi_collision; |
| u64 rx_unicast; |
| u64 rx_broadcast; |
| u32 rx_multicast; |
| u16 tx_aborted; |
| u16 tx_underun; |
| }; |
| |
| static int rtl8169_get_stats_count(struct net_device *dev) |
| { |
| return ARRAY_SIZE(rtl8169_gstrings); |
| } |
| |
| 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 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, |
| .get_tx_csum = ethtool_op_get_tx_csum, |
| .set_tx_csum = ethtool_op_set_tx_csum, |
| .get_sg = ethtool_op_get_sg, |
| .set_sg = ethtool_op_set_sg, |
| .get_tso = ethtool_op_get_tso, |
| .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_stats_count = rtl8169_get_stats_count, |
| .get_ethtool_stats = rtl8169_get_ethtool_stats, |
| .get_perm_addr = ethtool_op_get_perm_addr, |
| }; |
| |
| 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) |
| { |
| const struct { |
| u32 mask; |
| int mac_version; |
| } mac_info[] = { |
| { 0x1 << 28, RTL_GIGA_MAC_VER_X }, |
| { 0x1 << 26, RTL_GIGA_MAC_VER_E }, |
| { 0x1 << 23, RTL_GIGA_MAC_VER_D }, |
| { 0x00000000, RTL_GIGA_MAC_VER_B } /* Catch-all */ |
| }, *p = mac_info; |
| u32 reg; |
| |
| reg = RTL_R32(TxConfig) & 0x7c800000; |
| while ((reg & p->mask) != p->mask) |
| p++; |
| tp->mac_version = p->mac_version; |
| } |
| |
| static void rtl8169_print_mac_version(struct rtl8169_private *tp) |
| { |
| struct { |
| int version; |
| char *msg; |
| } mac_print[] = { |
| { RTL_GIGA_MAC_VER_E, "RTL_GIGA_MAC_VER_E" }, |
| { RTL_GIGA_MAC_VER_D, "RTL_GIGA_MAC_VER_D" }, |
| { RTL_GIGA_MAC_VER_B, "RTL_GIGA_MAC_VER_B" }, |
| { 0, NULL } |
| }, *p; |
| |
| for (p = mac_print; p->msg; p++) { |
| if (tp->mac_version == p->version) { |
| dprintk("mac_version == %s (%04d)\n", p->msg, |
| p->version); |
| return; |
| } |
| } |
| dprintk("mac_version == Unknown\n"); |
| } |
| |
| static void rtl8169_get_phy_version(struct rtl8169_private *tp, void __iomem *ioaddr) |
| { |
| const struct { |
| u16 mask; |
| u16 set; |
| int phy_version; |
| } phy_info[] = { |
| { 0x000f, 0x0002, RTL_GIGA_PHY_VER_G }, |
| { 0x000f, 0x0001, RTL_GIGA_PHY_VER_F }, |
| { 0x000f, 0x0000, RTL_GIGA_PHY_VER_E }, |
| { 0x0000, 0x0000, RTL_GIGA_PHY_VER_D } /* Catch-all */ |
| }, *p = phy_info; |
| u16 reg; |
| |
| reg = mdio_read(ioaddr, 3) & 0xffff; |
| while ((reg & p->mask) != p->set) |
| p++; |
| tp->phy_version = p->phy_version; |
| } |
| |
| static void rtl8169_print_phy_version(struct rtl8169_private *tp) |
| { |
| struct { |
| int version; |
| char *msg; |
| u32 reg; |
| } phy_print[] = { |
| { RTL_GIGA_PHY_VER_G, "RTL_GIGA_PHY_VER_G", 0x0002 }, |
| { RTL_GIGA_PHY_VER_F, "RTL_GIGA_PHY_VER_F", 0x0001 }, |
| { RTL_GIGA_PHY_VER_E, "RTL_GIGA_PHY_VER_E", 0x0000 }, |
| { RTL_GIGA_PHY_VER_D, "RTL_GIGA_PHY_VER_D", 0x0000 }, |
| { 0, NULL, 0x0000 } |
| }, *p; |
| |
| for (p = phy_print; p->msg; p++) { |
| if (tp->phy_version == p->version) { |
| dprintk("phy_version == %s (%04x)\n", p->msg, p->reg); |
| return; |
| } |
| } |
| dprintk("phy_version == Unknown\n"); |
| } |
| |
| static void rtl8169_hw_phy_config(struct net_device *dev) |
| { |
| struct rtl8169_private *tp = netdev_priv(dev); |
| void __iomem *ioaddr = tp->mmio_addr; |
| 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; |
| int i; |
| |
| rtl8169_print_mac_version(tp); |
| rtl8169_print_phy_version(tp); |
| |
| if (tp->mac_version <= RTL_GIGA_MAC_VER_B) |
| return; |
| if (tp->phy_version >= RTL_GIGA_PHY_VER_H) |
| return; |
| |
| dprintk("MAC version != 0 && PHY version == 0 or 1\n"); |
| dprintk("Do final_reg2.cfg\n"); |
| |
| /* Shazam ! */ |
| |
| if (tp->mac_version == RTL_GIGA_MAC_VER_X) { |
| mdio_write(ioaddr, 31, 0x0001); |
| mdio_write(ioaddr, 9, 0x273a); |
| mdio_write(ioaddr, 14, 0x7bfb); |
| mdio_write(ioaddr, 27, 0x841e); |
| |
| mdio_write(ioaddr, 31, 0x0002); |
| mdio_write(ioaddr, 1, 0x90d0); |
| mdio_write(ioaddr, 31, 0x0000); |
| return; |
| } |
| |
| /* phy config for RTL8169s mac_version C chip */ |
| mdio_write(ioaddr, 31, 0x0001); //w 31 2 0 1 |
| mdio_write(ioaddr, 21, 0x1000); //w 21 15 0 1000 |
| mdio_write(ioaddr, 24, 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, 31, 0x0000); //w 31 2 0 0 |
| } |
| |
| 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_B); |
| assert(tp->phy_version < RTL_GIGA_PHY_VER_H); |
| |
| if (!(tp->phy_1000_ctrl_reg & PHY_Cap_1000_Full)) |
| 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_B) || |
| (tp->phy_version >= RTL_GIGA_PHY_VER_H)) |
| 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_B) || |
| (tp->phy_version >= RTL_GIGA_PHY_VER_H)) |
| return; |
| |
| init_timer(timer); |
| timer->expires = jiffies + RTL8169_PHY_TIMEOUT; |
| timer->data = (unsigned long)(dev); |
| timer->function = rtl8169_phy_timer; |
| add_timer(timer); |
| } |
| |
| #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, NULL); |
| enable_irq(pdev->irq); |
| } |
| #endif |
| |
| static void __rtl8169_set_mac_addr(struct net_device *dev, void __iomem *ioaddr) |
| { |
| unsigned int i, j; |
| |
| RTL_W8(Cfg9346, Cfg9346_Unlock); |
| for (i = 0; i < 2; i++) { |
| __le32 l = 0; |
| |
| for (j = 0; j < 4; j++) { |
| l <<= 8; |
| l |= dev->dev_addr[4*i + j]; |
| } |
| RTL_W32(MAC0 + 4*i, cpu_to_be32(l)); |
| } |
| RTL_W8(Cfg9346, Cfg9346_Lock); |
| } |
| |
| static int rtl8169_set_mac_addr(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 -EINVAL; |
| |
| memcpy(dev->dev_addr, addr->sa_data, dev->addr_len); |
| |
| if (netif_running(dev)) { |
| spin_lock_irq(&tp->lock); |
| __rtl8169_set_mac_addr(dev, tp->mmio_addr); |
| spin_unlock_irq(&tp->lock); |
| } |
| return 0; |
| } |
| |
| 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_init_phy(struct net_device *dev, struct rtl8169_private *tp) |
| { |
| void __iomem *ioaddr = tp->mmio_addr; |
| static int board_idx = -1; |
| u8 autoneg, duplex; |
| u16 speed; |
| |
| board_idx++; |
| |
| rtl8169_hw_phy_config(dev); |
| |
| dprintk("Set MAC Reg C+CR Offset 0x82h = 0x01h\n"); |
| RTL_W8(0x82, 0x01); |
| |
| if (tp->mac_version < RTL_GIGA_MAC_VER_E) { |
| dprintk("Set PCI Latency=0x40\n"); |
| pci_write_config_byte(tp->pci_dev, PCI_LATENCY_TIMER, 0x40); |
| } |
| |
| if (tp->mac_version == RTL_GIGA_MAC_VER_D) { |
| 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_link_option(board_idx, &autoneg, &speed, &duplex); |
| |
| rtl8169_set_speed(dev, autoneg, speed, duplex); |
| |
| if ((RTL_R8(PHYstatus) & TBI_Enable) && netif_msg_link(tp)) |
| printk(KERN_INFO PFX "%s: TBI auto-negotiating\n", dev->name); |
| } |
| |
| static int __devinit |
| rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) |
| { |
| struct rtl8169_private *tp; |
| struct net_device *dev; |
| void __iomem *ioaddr; |
| unsigned int i, pm_cap; |
| 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_MODULE_OWNER(dev); |
| SET_NETDEV_DEV(dev, &pdev->dev); |
| tp = netdev_priv(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; |
| |
| /* save power state before pci_enable_device overwrites it */ |
| pm_cap = pci_find_capability(pdev, PCI_CAP_ID_PM); |
| if (pm_cap) { |
| u16 pwr_command, acpi_idle_state; |
| |
| pci_read_config_word(pdev, pm_cap + PCI_PM_CTRL, &pwr_command); |
| acpi_idle_state = pwr_command & PCI_PM_CTRL_STATE_MASK; |
| } else { |
| if (netif_msg_probe(tp)) { |
| dev_err(&pdev->dev, |
| "PowerManagement capability not found.\n"); |
| } |
| } |
| |
| /* make sure PCI base addr 1 is MMIO */ |
| if (!(pci_resource_flags(pdev, 1) & IORESOURCE_MEM)) { |
| if (netif_msg_probe(tp)) { |
| dev_err(&pdev->dev, |
| "region #1 not an MMIO resource, aborting\n"); |
| } |
| rc = -ENODEV; |
| goto err_out_mwi_3; |
| } |
| |
| /* check for weird/broken PCI region reporting */ |
| if (pci_resource_len(pdev, 1) < 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, 1), 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 = 1000; i > 0; i--) { |
| if ((RTL_R8(ChipCmd) & CmdReset) == 0) |
| break; |
| udelay(10); |
| } |
| |
| /* Identify chip attached to board */ |
| rtl8169_get_mac_version(tp, ioaddr); |
| rtl8169_get_phy_version(tp, ioaddr); |
| |
| rtl8169_print_mac_version(tp); |
| rtl8169_print_phy_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); |
| 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 = PHY_Cap_1000_Full; /* 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; |
| } |
| |
| /* 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 = rtl8169_set_rx_mode; |
| dev->set_mac_address = rtl8169_set_mac_addr; |
| dev->watchdog_timeo = RTL8169_TX_TIMEOUT; |
| dev->irq = pdev->irq; |
| dev->base_addr = (unsigned long) ioaddr; |
| dev->change_mtu = rtl8169_change_mtu; |
| |
| #ifdef CONFIG_R8169_NAPI |
| dev->poll = rtl8169_poll; |
| dev->weight = 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; |
| dev->vlan_rx_kill_vid = rtl8169_vlan_rx_kill_vid; |
| #endif |
| |
| #ifdef CONFIG_NET_POLL_CONTROLLER |
| dev->poll_controller = rtl8169_netpoll; |
| #endif |
| |
| tp->intr_mask = 0xffff; |
| tp->pci_dev = pdev; |
| tp->mmio_addr = ioaddr; |
| |
| spin_lock_init(&tp->lock); |
| |
| rc = register_netdev(dev); |
| if (rc < 0) |
| goto err_out_unmap_5; |
| |
| if (netif_msg_probe(tp)) { |
| printk(KERN_DEBUG "%s: Identified chip type is '%s'.\n", |
| dev->name, rtl_chip_info[tp->chipset].name); |
| } |
| |
| pci_set_drvdata(pdev, dev); |
| |
| if (netif_msg_probe(tp)) { |
| printk(KERN_INFO "%s: %s at 0x%lx, " |
| "%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x, " |
| "IRQ %d\n", |
| dev->name, |
| rtl_chip_info[ent->driver_data].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], dev->irq); |
| } |
| |
| rtl8169_init_phy(dev, tp); |
| |
| out: |
| return rc; |
| |
| err_out_unmap_5: |
| 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); |
| |
| assert(dev != NULL); |
| assert(tp != NULL); |
| |
| unregister_netdev(dev); |
| 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; |
| |
| rtl8169_set_rxbufsize(tp, dev); |
| |
| retval = |
| request_irq(dev->irq, rtl8169_interrupt, IRQF_SHARED, dev->name, dev); |
| if (retval < 0) |
| goto out; |
| |
| retval = -ENOMEM; |
| |
| /* |
| * 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 err_free_irq; |
| |
| tp->RxDescArray = pci_alloc_consistent(pdev, R8169_RX_RING_BYTES, |
| &tp->RxPhyAddr); |
| if (!tp->RxDescArray) |
| goto err_free_tx; |
| |
| retval = rtl8169_init_ring(dev); |
| if (retval < 0) |
| goto err_free_rx; |
| |
| INIT_WORK(&tp->task, NULL, dev); |
| |
| rtl8169_hw_start(dev); |
| |
| rtl8169_request_timer(dev); |
| |
| rtl8169_check_link_status(dev, tp, tp->mmio_addr); |
| out: |
| return retval; |
| |
| err_free_rx: |
| pci_free_consistent(pdev, R8169_RX_RING_BYTES, tp->RxDescArray, |
| tp->RxPhyAddr); |
| err_free_tx: |
| pci_free_consistent(pdev, R8169_TX_RING_BYTES, tp->TxDescArray, |
| tp->TxPhyAddr); |
| err_free_irq: |
| free_irq(dev->irq, dev); |
| 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 |
| rtl8169_hw_start(struct net_device *dev) |
| { |
| struct rtl8169_private *tp = netdev_priv(dev); |
| void __iomem *ioaddr = tp->mmio_addr; |
| u32 i; |
| |
| /* Soft reset the chip. */ |
| RTL_W8(ChipCmd, CmdReset); |
| |
| /* Check that the chip has finished the reset. */ |
| for (i = 1000; i > 0; i--) { |
| if ((RTL_R8(ChipCmd) & CmdReset) == 0) |
| break; |
| udelay(10); |
| } |
| |
| RTL_W8(Cfg9346, Cfg9346_Unlock); |
| RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb); |
| RTL_W8(EarlyTxThres, EarlyTxThld); |
| |
| /* Low hurts. Let's disable the filtering. */ |
| RTL_W16(RxMaxSize, 16383); |
| |
| /* Set Rx Config register */ |
| i = rtl8169_rx_config | |
| (RTL_R32(RxConfig) & rtl_chip_info[tp->chipset].RxConfigMask); |
| RTL_W32(RxConfig, i); |
| |
| /* Set DMA burst size and Interframe Gap Time */ |
| RTL_W32(TxConfig, |
| (TX_DMA_BURST << TxDMAShift) | (InterFrameGap << |
| TxInterFrameGapShift)); |
| tp->cp_cmd |= RTL_R16(CPlusCmd); |
| RTL_W16(CPlusCmd, tp->cp_cmd); |
| |
| if ((tp->mac_version == RTL_GIGA_MAC_VER_D) || |
| (tp->mac_version == RTL_GIGA_MAC_VER_E)) { |
| dprintk(KERN_INFO PFX "Set MAC Reg C+CR Offset 0xE0. " |
| "Bit-3 and bit-14 MUST be 1\n"); |
| tp->cp_cmd |= (1 << 14) | PCIMulRW; |
| RTL_W16(CPlusCmd, tp->cp_cmd); |
| } |
| |
| /* |
| * Undocumented corner. Supposedly: |
| * (TxTimer << 12) | (TxPackets << 8) | (RxTimer << 4) | RxPackets |
| */ |
| RTL_W16(IntrMitigate, 0x0000); |
| |
| RTL_W32(TxDescStartAddrLow, ((u64) tp->TxPhyAddr & DMA_32BIT_MASK)); |
| RTL_W32(TxDescStartAddrHigh, ((u64) tp->TxPhyAddr >> 32)); |
| RTL_W32(RxDescAddrLow, ((u64) tp->RxPhyAddr & DMA_32BIT_MASK)); |
| RTL_W32(RxDescAddrHigh, ((u64) tp->RxPhyAddr >> 32)); |
| RTL_W8(Cfg9346, Cfg9346_Lock); |
| udelay(10); |
| |
| RTL_W32(RxMissed, 0); |
| |
| rtl8169_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, rtl8169_intr_mask); |
| |
| __rtl8169_set_mac_addr(dev, ioaddr); |
| |
| netif_start_queue(dev); |
| } |
| |
| 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; |
| |
| netif_poll_enable(dev); |
| |
| rtl8169_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 int rtl8169_alloc_rx_skb(struct pci_dev *pdev, struct sk_buff **sk_buff, |
| struct RxDesc *desc, int rx_buf_sz) |
| { |
| struct sk_buff *skb; |
| dma_addr_t mapping; |
| int ret = 0; |
| |
| skb = dev_alloc_skb(rx_buf_sz + NET_IP_ALIGN); |
| if (!skb) |
| goto err_out; |
| |
| skb_reserve(skb, NET_IP_ALIGN); |
| *sk_buff = skb; |
| |
| mapping = pci_map_single(pdev, skb->data, rx_buf_sz, |
| PCI_DMA_FROMDEVICE); |
| |
| rtl8169_map_to_asic(desc, mapping, rx_buf_sz); |
| |
| out: |
| return ret; |
| |
| err_out: |
| ret = -ENOMEM; |
| rtl8169_make_unusable_by_asic(desc); |
| goto out; |
| } |
| |
| static void rtl8169_rx_clear(struct rtl8169_private *tp) |
| { |
| 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++) { |
| int ret, i = cur % NUM_RX_DESC; |
| |
| if (tp->Rx_skbuff[i]) |
| continue; |
| |
| ret = rtl8169_alloc_rx_skb(tp->pci_dev, tp->Rx_skbuff + i, |
| tp->RxDescArray + i, tp->rx_buf_sz); |
| if (ret < 0) |
| break; |
| } |
| 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->stats.tx_dropped++; |
| } |
| } |
| tp->cur_tx = tp->dirty_tx = 0; |
| } |
| |
| static void rtl8169_schedule_work(struct net_device *dev, void (*task)(void *)) |
| { |
| struct rtl8169_private *tp = netdev_priv(dev); |
| |
| PREPARE_WORK(&tp->task, task, dev); |
| 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 */ |
| netif_poll_disable(dev); |
| |
| rtl8169_irq_mask_and_ack(ioaddr); |
| |
| netif_poll_enable(dev); |
| } |
| |
| static void rtl8169_reinit_task(void *_data) |
| { |
| struct net_device *dev = _data; |
| int ret; |
| |
| if (netif_running(dev)) { |
| rtl8169_wait_for_quiescence(dev); |
| rtl8169_close(dev); |
| } |
| |
| ret = rtl8169_open(dev); |
| if (unlikely(ret < 0)) { |
| if (net_ratelimit()) { |
| struct rtl8169_private *tp = netdev_priv(dev); |
| |
| if (netif_msg_drv(tp)) { |
| printk(PFX KERN_ERR |
| "%s: reinit failure (status = %d)." |
| " Rescheduling.\n", dev->name, ret); |
| } |
| } |
| rtl8169_schedule_work(dev, rtl8169_reinit_task); |
| } |
| } |
| |
| static void rtl8169_reset_task(void *_data) |
| { |
| struct net_device *dev = _data; |
| struct rtl8169_private *tp = netdev_priv(dev); |
| |
| if (!netif_running(dev)) |
| return; |
| |
| rtl8169_wait_for_quiescence(dev); |
| |
| rtl8169_rx_interrupt(dev, tp, tp->mmio_addr); |
| rtl8169_tx_clear(tp); |
| |
| if (tp->dirty_rx == tp->cur_rx) { |
| rtl8169_init_ring_indexes(tp); |
| rtl8169_hw_start(dev); |
| netif_wake_queue(dev); |
| } else { |
| if (net_ratelimit()) { |
| struct rtl8169_private *tp = netdev_priv(dev); |
| |
| if (netif_msg_intr(tp)) { |
| printk(PFX KERN_EMERG |
| "%s: Rx buffers shortage\n", dev->name); |
| } |
| } |
| rtl8169_schedule_work(dev, rtl8169_reset_task); |
| } |
| } |
| |
| 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 *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_HW) { |
| const struct iphdr *ip = skb->nh.iph; |
| |
| 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 = 0; |
| |
| 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, 0x40); /* 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 = 1; |
| err_update_stats: |
| tp->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. |
| * |
| * Feel free to adjust to your needs. |
| */ |
| pci_write_config_word(pdev, PCI_COMMAND, |
| pci_cmd | PCI_COMMAND_SERR | PCI_COMMAND_PARITY); |
| |
| 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_schedule_work(dev, rtl8169_reinit_task); |
| } |
| |
| rtl8169_hw_reset(ioaddr); |
| } |
| |
| static void |
| rtl8169_tx_interrupt(struct net_device *dev, struct rtl8169_private *tp, |
| void __iomem *ioaddr) |
| { |
| unsigned int dirty_tx, tx_left; |
| |
| assert(dev != NULL); |
| assert(tp != NULL); |
| assert(ioaddr != NULL); |
| |
| 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; |
| |
| tp->stats.tx_bytes += len; |
| tp->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); |
| } |
| } |
| } |
| |
| 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 int rtl8169_try_rx_copy(struct sk_buff **sk_buff, int pkt_size, |
| struct RxDesc *desc, int rx_buf_sz) |
| { |
| int ret = -1; |
| |
| if (pkt_size < rx_copybreak) { |
| struct sk_buff *skb; |
| |
| skb = dev_alloc_skb(pkt_size + NET_IP_ALIGN); |
| if (skb) { |
| skb_reserve(skb, NET_IP_ALIGN); |
| eth_copy_and_sum(skb, sk_buff[0]->data, pkt_size, 0); |
| *sk_buff = skb; |
| rtl8169_mark_to_asic(desc, rx_buf_sz); |
| ret = 0; |
| } |
| } |
| return ret; |
| } |
| |
| static int |
| rtl8169_rx_interrupt(struct net_device *dev, struct rtl8169_private *tp, |
| void __iomem *ioaddr) |
| { |
| unsigned int cur_rx, rx_left; |
| unsigned int delta, count; |
| |
| assert(dev != NULL); |
| assert(tp != NULL); |
| assert(ioaddr != NULL); |
| |
| cur_rx = tp->cur_rx; |
| rx_left = NUM_RX_DESC + tp->dirty_rx - cur_rx; |
| rx_left = rtl8169_rx_quota(rx_left, (u32) dev->quota); |
| |
| 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); |
| } |
| tp->stats.rx_errors++; |
| if (status & (RxRWT | RxRUNT)) |
| tp->stats.rx_length_errors++; |
| if (status & RxCRC) |
| tp->stats.rx_crc_errors++; |
| if (status & RxFOVF) { |
| rtl8169_schedule_work(dev, rtl8169_reset_task); |
| tp->stats.rx_fifo_errors++; |
| } |
| rtl8169_mark_to_asic(desc, tp->rx_buf_sz); |
| } else { |
| struct sk_buff *skb = tp->Rx_skbuff[entry]; |
| int pkt_size = (status & 0x00001FFF) - 4; |
| void (*pci_action)(struct pci_dev *, dma_addr_t, |
| size_t, int) = pci_dma_sync_single_for_device; |
| |
| /* |
| * 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))) { |
| tp->stats.rx_dropped++; |
| tp->stats.rx_length_errors++; |
| rtl8169_mark_to_asic(desc, tp->rx_buf_sz); |
| continue; |
| } |
| |
| rtl8169_rx_csum(skb, desc); |
| |
| pci_dma_sync_single_for_cpu(tp->pci_dev, |
| le64_to_cpu(desc->addr), tp->rx_buf_sz, |
| PCI_DMA_FROMDEVICE); |
| |
| if (rtl8169_try_rx_copy(&skb, pkt_size, desc, |
| tp->rx_buf_sz)) { |
| pci_action = pci_unmap_single; |
| tp->Rx_skbuff[entry] = NULL; |
| } |
| |
| pci_action(tp->pci_dev, le64_to_cpu(desc->addr), |
| tp->rx_buf_sz, PCI_DMA_FROMDEVICE); |
| |
| skb->dev = dev; |
| 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; |
| tp->stats.rx_bytes += pkt_size; |
| tp->stats.rx_packets++; |
| } |
| } |
| |
| 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; |
| } |
| |
| /* The interrupt handler does all of the Rx thread work and cleans up after the Tx thread. */ |
| static irqreturn_t |
| rtl8169_interrupt(int irq, void *dev_instance, struct pt_regs *regs) |
| { |
| struct net_device *dev = (struct net_device *) 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 & rtl8169_intr_mask)) |
| break; |
| |
| if (unlikely(status & SYSErr)) { |
| rtl8169_pcierr_interrupt(dev); |
| break; |
| } |
| |
| if (status & LinkChg) |
| rtl8169_check_link_status(dev, tp, ioaddr); |
| |
| #ifdef CONFIG_R8169_NAPI |
| RTL_W16(IntrMask, rtl8169_intr_mask & ~rtl8169_napi_event); |
| tp->intr_mask = ~rtl8169_napi_event; |
| |
| if (likely(netif_rx_schedule_prep(dev))) |
| __netif_rx_schedule(dev); |
| else if (netif_msg_intr(tp)) { |
| printk(KERN_INFO "%s: interrupt %04x taken in poll\n", |
| dev->name, status); |
| } |
| break; |
| #else |
| /* Rx interrupt */ |
| if (status & (RxOK | RxOverflow | RxFIFOOver)) { |
| rtl8169_rx_interrupt(dev, tp, ioaddr); |
| } |
| /* 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 net_device *dev, int *budget) |
| { |
| unsigned int work_done, work_to_do = min(*budget, dev->quota); |
| struct rtl8169_private *tp = netdev_priv(dev); |
| void __iomem *ioaddr = tp->mmio_addr; |
| |
| work_done = rtl8169_rx_interrupt(dev, tp, ioaddr); |
| rtl8169_tx_interrupt(dev, tp, ioaddr); |
| |
| *budget -= work_done; |
| dev->quota -= work_done; |
| |
| if (work_done < work_to_do) { |
| netif_rx_complete(dev); |
| 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, rtl8169_intr_mask); |
| } |
| |
| return (work_done >= work_to_do); |
| } |
| #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; |
| |
| rtl8169_delete_timer(dev); |
| |
| netif_stop_queue(dev); |
| |
| flush_scheduled_work(); |
| |
| core_down: |
| spin_lock_irq(&tp->lock); |
| |
| rtl8169_asic_down(ioaddr); |
| |
| /* Update the error counts. */ |
| tp->stats.rx_missed_errors += RTL_R32(RxMissed); |
| RTL_W32(RxMissed, 0); |
| |
| spin_unlock_irq(&tp->lock); |
| |
| synchronize_irq(dev->irq); |
| |
| if (!poll_locked) { |
| netif_poll_disable(dev); |
| 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. |
| */ |
| if (RTL_R16(IntrMask)) |
| 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); |
| |
| netif_poll_enable(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 |
| rtl8169_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 i, 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; |
| 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); |
| |
| RTL_W32(RxConfig, tmp); |
| RTL_W32(MAR0 + 0, mc_filter[0]); |
| RTL_W32(MAR0 + 4, mc_filter[1]); |
| |
| 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); |
| tp->stats.rx_missed_errors += RTL_R32(RxMissed); |
| RTL_W32(RxMissed, 0); |
| spin_unlock_irqrestore(&tp->lock, flags); |
| } |
| |
| return &tp->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; |
| |
| netif_device_detach(dev); |
| netif_stop_queue(dev); |
| |
| spin_lock_irq(&tp->lock); |
| |
| rtl8169_asic_down(ioaddr); |
| |
| tp->stats.rx_missed_errors += RTL_R32(RxMissed); |
| RTL_W32(RxMissed, 0); |
| |
| spin_unlock_irq(&tp->lock); |
| |
| pci_save_state(pdev); |
| pci_enable_wake(pdev, pci_choose_state(pdev, state), tp->wol_enabled); |
| pci_set_power_state(pdev, pci_choose_state(pdev, state)); |
| out: |
| return 0; |
| } |
| |
| static int rtl8169_resume(struct pci_dev *pdev) |
| { |
| struct net_device *dev = pci_get_drvdata(pdev); |
| |
| if (!netif_running(dev)) |
| goto out; |
| |
| netif_device_attach(dev); |
| |
| pci_set_power_state(pdev, PCI_D0); |
| pci_restore_state(pdev); |
| pci_enable_wake(pdev, PCI_D0, 0); |
| |
| 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_module_init(&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); |