| /* |
| * 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> |
| |
| #define RTL8169_VERSION "2.3LK-NAPI" |
| #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__,__func__,__LINE__); \ |
| } |
| #define dprintk(fmt, args...) \ |
| do { printk(KERN_DEBUG PFX fmt, ## args); } while (0) |
| #else |
| #define assert(expr) do {} while (0) |
| #define dprintk(fmt, args...) do {} while (0) |
| #endif /* RTL8169_DEBUG */ |
| |
| #define R8169_MSG_DEFAULT \ |
| (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_IFUP | NETIF_MSG_IFDOWN) |
| |
| #define TX_BUFFS_AVAIL(tp) \ |
| (tp->dirty_tx + NUM_TX_DESC - tp->cur_tx - 1) |
| |
| /* Maximum number of multicast addresses to filter (vs. Rx-all-multicast). |
| The RTL chips use a 64 element hash table based on the Ethernet CRC. */ |
| static const int multicast_filter_limit = 32; |
| |
| /* MAC address length */ |
| #define MAC_ADDR_LEN 6 |
| |
| #define MAX_READ_REQUEST_SHIFT 12 |
| #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 SafeMtu 0x1c20 /* ... actually life sucks beyond ~7k */ |
| #define InterFrameGap 0x03 /* 3 means InterFrameGap = the shortest one */ |
| |
| #define R8169_REGS_SIZE 256 |
| #define R8169_NAPI_WEIGHT 64 |
| #define NUM_TX_DESC 64 /* Number of Tx descriptor registers */ |
| #define NUM_RX_DESC 256 /* Number of Rx descriptor registers */ |
| #define RX_BUF_SIZE 1536 /* Rx Buffer size */ |
| #define R8169_TX_RING_BYTES (NUM_TX_DESC * sizeof(struct TxDesc)) |
| #define R8169_RX_RING_BYTES (NUM_RX_DESC * sizeof(struct RxDesc)) |
| |
| #define RTL8169_TX_TIMEOUT (6*HZ) |
| #define RTL8169_PHY_TIMEOUT (10*HZ) |
| |
| #define RTL_EEPROM_SIG cpu_to_le32(0x8129) |
| #define RTL_EEPROM_SIG_MASK cpu_to_le32(0xffff) |
| #define RTL_EEPROM_SIG_ADDR 0x0000 |
| |
| /* write/read MMIO register */ |
| #define RTL_W8(reg, val8) writeb ((val8), ioaddr + (reg)) |
| #define RTL_W16(reg, val16) writew ((val16), ioaddr + (reg)) |
| #define RTL_W32(reg, val32) writel ((val32), ioaddr + (reg)) |
| #define RTL_R8(reg) readb (ioaddr + (reg)) |
| #define RTL_R16(reg) readw (ioaddr + (reg)) |
| #define RTL_R32(reg) ((unsigned long) readl (ioaddr + (reg))) |
| |
| enum mac_version { |
| RTL_GIGA_MAC_NONE = 0x00, |
| 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_07 = 0x07, // 8102e |
| RTL_GIGA_MAC_VER_08 = 0x08, // 8102e |
| RTL_GIGA_MAC_VER_09 = 0x09, // 8102e |
| RTL_GIGA_MAC_VER_10 = 0x0a, // 8101e |
| 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 |
| RTL_GIGA_MAC_VER_21 = 0x15, // 8168C |
| RTL_GIGA_MAC_VER_22 = 0x16, // 8168C |
| RTL_GIGA_MAC_VER_23 = 0x17, // 8168CP |
| RTL_GIGA_MAC_VER_24 = 0x18, // 8168CP |
| RTL_GIGA_MAC_VER_25 = 0x19 // 8168D |
| }; |
| |
| #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("RTL8102e", RTL_GIGA_MAC_VER_07, 0xff7e1880), // PCI-E |
| _R("RTL8102e", RTL_GIGA_MAC_VER_08, 0xff7e1880), // PCI-E |
| _R("RTL8102e", RTL_GIGA_MAC_VER_09, 0xff7e1880), // PCI-E |
| _R("RTL8101e", RTL_GIGA_MAC_VER_10, 0xff7e1880), // PCI-E |
| _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 |
| _R("RTL8168c/8111c", RTL_GIGA_MAC_VER_21, 0xff7e1880), // PCI-E |
| _R("RTL8168c/8111c", RTL_GIGA_MAC_VER_22, 0xff7e1880), // PCI-E |
| _R("RTL8168cp/8111cp", RTL_GIGA_MAC_VER_23, 0xff7e1880), // PCI-E |
| _R("RTL8168cp/8111cp", RTL_GIGA_MAC_VER_24, 0xff7e1880), // PCI-E |
| _R("RTL8168d/8111d", RTL_GIGA_MAC_VER_25, 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 }, |
| { 0x0001, 0x8168, |
| PCI_ANY_ID, 0x2410, 0, 0, RTL_CFG_2 }, |
| {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, |
| PHYstatus = 0x6c, |
| RxMaxSize = 0xda, |
| CPlusCmd = 0xe0, |
| IntrMitigate = 0xe2, |
| RxDescAddrLow = 0xe4, |
| RxDescAddrHigh = 0xe8, |
| EarlyTxThres = 0xec, |
| FuncEvent = 0xf0, |
| FuncEventMask = 0xf4, |
| FuncPresetState = 0xf8, |
| FuncForceEvent = 0xfc, |
| }; |
| |
| enum rtl8110_registers { |
| TBICSR = 0x64, |
| TBI_ANAR = 0x68, |
| TBI_LPAR = 0x6a, |
| }; |
| |
| enum rtl8168_8101_registers { |
| CSIDR = 0x64, |
| CSIAR = 0x68, |
| #define CSIAR_FLAG 0x80000000 |
| #define CSIAR_WRITE_CMD 0x80000000 |
| #define CSIAR_BYTE_ENABLE 0x0f |
| #define CSIAR_BYTE_ENABLE_SHIFT 12 |
| #define CSIAR_ADDR_MASK 0x0fff |
| |
| EPHYAR = 0x80, |
| #define EPHYAR_FLAG 0x80000000 |
| #define EPHYAR_WRITE_CMD 0x80000000 |
| #define EPHYAR_REG_MASK 0x1f |
| #define EPHYAR_REG_SHIFT 16 |
| #define EPHYAR_DATA_MASK 0xffff |
| DBG_REG = 0xd1, |
| #define FIX_NAK_1 (1 << 4) |
| #define FIX_NAK_2 (1 << 3) |
| }; |
| |
| 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 */ |
| LEDS1 = (1 << 7), |
| LEDS0 = (1 << 6), |
| MSIEnable = (1 << 5), /* Enable Message Signaled Interrupt */ |
| Speed_down = (1 << 4), |
| MEMMAP = (1 << 3), |
| IOMAP = (1 << 2), |
| VPD = (1 << 1), |
| 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 */ |
| Beacon_en = (1 << 0), /* 8168 only. Reserved in the 8168b */ |
| |
| /* Config5 register p.27 */ |
| BWF = (1 << 6), /* Accept Broadcast wakeup frame */ |
| MWF = (1 << 5), /* Accept Multicast wakeup frame */ |
| UWF = (1 << 4), /* Accept Unicast wakeup frame */ |
| LanWake = (1 << 1), /* LanWake enable/disable */ |
| PMEStatus = (1 << 0), /* PME status can be reset by PCI RST# */ |
| |
| /* TBICSR p.28 */ |
| TBIReset = 0x80000000, |
| TBILoopback = 0x40000000, |
| TBINwEnable = 0x20000000, |
| TBINwRestart = 0x10000000, |
| TBILinkOk = 0x02000000, |
| TBINwComplete = 0x01000000, |
| |
| /* CPlusCmd p.31 */ |
| EnableBist = (1 << 15), // 8168 8101 |
| Mac_dbgo_oe = (1 << 14), // 8168 8101 |
| Normal_mode = (1 << 13), // unused |
| Force_half_dup = (1 << 12), // 8168 8101 |
| Force_rxflow_en = (1 << 11), // 8168 8101 |
| Force_txflow_en = (1 << 10), // 8168 8101 |
| Cxpl_dbg_sel = (1 << 9), // 8168 8101 |
| ASF = (1 << 8), // 8168 8101 |
| PktCntrDisable = (1 << 7), // 8168 8101 |
| Mac_dbgo_sel = 0x001c, // 8168 |
| RxVlan = (1 << 6), |
| RxChkSum = (1 << 5), |
| PCIDAC = (1 << 4), |
| PCIMulRW = (1 << 3), |
| INTT_0 = 0x0000, // 8168 |
| INTT_1 = 0x0001, // 8168 |
| INTT_2 = 0x0002, // 8168 |
| INTT_3 = 0x0003, // 8168 |
| |
| /* rtl8169_PHYstatus */ |
| TBI_Enable = 0x80, |
| TxFlowCtrl = 0x40, |
| RxFlowCtrl = 0x20, |
| _1000bpsF = 0x10, |
| _100bps = 0x08, |
| _10bps = 0x04, |
| LinkStatus = 0x02, |
| FullDup = 0x01, |
| |
| /* _TBICSRBit */ |
| TBILinkOK = 0x02000000, |
| |
| /* DumpCounterCommand */ |
| CounterDump = 0x8, |
| }; |
| |
| enum 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), |
| RTL_FEATURE_GMII = (1 << 2), |
| }; |
| |
| struct rtl8169_counters { |
| __le64 tx_packets; |
| __le64 rx_packets; |
| __le64 tx_errors; |
| __le32 rx_errors; |
| __le16 rx_missed; |
| __le16 align_errors; |
| __le32 tx_one_collision; |
| __le32 tx_multi_collision; |
| __le64 rx_unicast; |
| __le64 rx_broadcast; |
| __le32 rx_multicast; |
| __le16 tx_aborted; |
| __le16 tx_underun; |
| }; |
| |
| 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_1000_ctrl_reg; |
| #ifdef CONFIG_R8169_VLAN |
| struct vlan_group *vlgrp; |
| #endif |
| int (*set_speed)(struct net_device *, u8 autoneg, u16 speed, u8 duplex); |
| int (*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 *); |
| int (*do_ioctl)(struct rtl8169_private *tp, struct mii_ioctl_data *data, int cmd); |
| int pcie_cap; |
| struct delayed_work task; |
| unsigned features; |
| |
| struct mii_if_info mii; |
| struct rtl8169_counters counters; |
| }; |
| |
| 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 netdev_tx_t 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); |
| static int rtl8169_poll(struct napi_struct *napi, int budget); |
| |
| 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 & 0x1f) << 16 | (value & 0xffff)); |
| |
| 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 & 0x1f) << 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 = RTL_R32(PHYAR) & 0xffff; |
| break; |
| } |
| udelay(25); |
| } |
| return value; |
| } |
| |
| static void mdio_patch(void __iomem *ioaddr, int reg_addr, int value) |
| { |
| mdio_write(ioaddr, reg_addr, mdio_read(ioaddr, reg_addr) | value); |
| } |
| |
| static void rtl_mdio_write(struct net_device *dev, int phy_id, int location, |
| int val) |
| { |
| struct rtl8169_private *tp = netdev_priv(dev); |
| void __iomem *ioaddr = tp->mmio_addr; |
| |
| mdio_write(ioaddr, location, val); |
| } |
| |
| static int rtl_mdio_read(struct net_device *dev, int phy_id, int location) |
| { |
| struct rtl8169_private *tp = netdev_priv(dev); |
| void __iomem *ioaddr = tp->mmio_addr; |
| |
| return mdio_read(ioaddr, location); |
| } |
| |
| static void rtl_ephy_write(void __iomem *ioaddr, int reg_addr, int value) |
| { |
| unsigned int i; |
| |
| RTL_W32(EPHYAR, EPHYAR_WRITE_CMD | (value & EPHYAR_DATA_MASK) | |
| (reg_addr & EPHYAR_REG_MASK) << EPHYAR_REG_SHIFT); |
| |
| for (i = 0; i < 100; i++) { |
| if (!(RTL_R32(EPHYAR) & EPHYAR_FLAG)) |
| break; |
| udelay(10); |
| } |
| } |
| |
| static u16 rtl_ephy_read(void __iomem *ioaddr, int reg_addr) |
| { |
| u16 value = 0xffff; |
| unsigned int i; |
| |
| RTL_W32(EPHYAR, (reg_addr & EPHYAR_REG_MASK) << EPHYAR_REG_SHIFT); |
| |
| for (i = 0; i < 100; i++) { |
| if (RTL_R32(EPHYAR) & EPHYAR_FLAG) { |
| value = RTL_R32(EPHYAR) & EPHYAR_DATA_MASK; |
| break; |
| } |
| udelay(10); |
| } |
| |
| return value; |
| } |
| |
| static void rtl_csi_write(void __iomem *ioaddr, int addr, int value) |
| { |
| unsigned int i; |
| |
| RTL_W32(CSIDR, value); |
| RTL_W32(CSIAR, CSIAR_WRITE_CMD | (addr & CSIAR_ADDR_MASK) | |
| CSIAR_BYTE_ENABLE << CSIAR_BYTE_ENABLE_SHIFT); |
| |
| for (i = 0; i < 100; i++) { |
| if (!(RTL_R32(CSIAR) & CSIAR_FLAG)) |
| break; |
| udelay(10); |
| } |
| } |
| |
| static u32 rtl_csi_read(void __iomem *ioaddr, int addr) |
| { |
| u32 value = ~0x00; |
| unsigned int i; |
| |
| RTL_W32(CSIAR, (addr & CSIAR_ADDR_MASK) | |
| CSIAR_BYTE_ENABLE << CSIAR_BYTE_ENABLE_SHIFT); |
| |
| for (i = 0; i < 100; i++) { |
| if (RTL_R32(CSIAR) & CSIAR_FLAG) { |
| value = RTL_R32(CSIDR); |
| break; |
| } |
| udelay(10); |
| } |
| |
| 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; |
| device_set_wakeup_enable(&tp->pci_dev->dev, wol->wolopts); |
| |
| 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 giga_ctrl, bmcr; |
| |
| if (autoneg == AUTONEG_ENABLE) { |
| int auto_nego; |
| |
| auto_nego = mdio_read(ioaddr, MII_ADVERTISE); |
| auto_nego |= (ADVERTISE_10HALF | ADVERTISE_10FULL | |
| ADVERTISE_100HALF | ADVERTISE_100FULL); |
| auto_nego |= ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM; |
| |
| giga_ctrl = mdio_read(ioaddr, MII_CTRL1000); |
| giga_ctrl &= ~(ADVERTISE_1000FULL | ADVERTISE_1000HALF); |
| |
| /* The 8100e/8101e/8102e do Fast Ethernet only. */ |
| if ((tp->mac_version != RTL_GIGA_MAC_VER_07) && |
| (tp->mac_version != RTL_GIGA_MAC_VER_08) && |
| (tp->mac_version != RTL_GIGA_MAC_VER_09) && |
| (tp->mac_version != RTL_GIGA_MAC_VER_10) && |
| (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)) { |
| giga_ctrl |= ADVERTISE_1000FULL | ADVERTISE_1000HALF; |
| } else if (netif_msg_link(tp)) { |
| printk(KERN_INFO "%s: PHY does not support 1000Mbps.\n", |
| dev->name); |
| } |
| |
| bmcr = BMCR_ANENABLE | BMCR_ANRESTART; |
| |
| if ((tp->mac_version == RTL_GIGA_MAC_VER_11) || |
| (tp->mac_version == RTL_GIGA_MAC_VER_12) || |
| (tp->mac_version >= RTL_GIGA_MAC_VER_17)) { |
| /* |
| * Wake up the PHY. |
| * Vendor specific (0x1f) and reserved (0x0e) MII |
| * registers. |
| */ |
| mdio_write(ioaddr, 0x1f, 0x0000); |
| mdio_write(ioaddr, 0x0e, 0x0000); |
| } |
| |
| mdio_write(ioaddr, MII_ADVERTISE, auto_nego); |
| mdio_write(ioaddr, MII_CTRL1000, giga_ctrl); |
| } else { |
| giga_ctrl = 0; |
| |
| if (speed == SPEED_10) |
| bmcr = 0; |
| else if (speed == SPEED_100) |
| bmcr = BMCR_SPEED100; |
| else |
| return -EINVAL; |
| |
| if (duplex == DUPLEX_FULL) |
| bmcr |= BMCR_FULLDPLX; |
| |
| mdio_write(ioaddr, 0x1f, 0x0000); |
| } |
| |
| tp->phy_1000_ctrl_reg = giga_ctrl; |
| |
| mdio_write(ioaddr, MII_BMCR, bmcr); |
| |
| if ((tp->mac_version == RTL_GIGA_MAC_VER_02) || |
| (tp->mac_version == RTL_GIGA_MAC_VER_03)) { |
| if ((speed == SPEED_100) && (autoneg != AUTONEG_ENABLE)) { |
| mdio_write(ioaddr, 0x17, 0x2138); |
| mdio_write(ioaddr, 0x0e, 0x0260); |
| } else { |
| mdio_write(ioaddr, 0x17, 0x2108); |
| mdio_write(ioaddr, 0x0e, 0x0000); |
| } |
| } |
| |
| 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); |
| struct vlan_group *vlgrp = tp->vlgrp; |
| int ret; |
| |
| if (vlgrp && (opts2 & RxVlanTag)) { |
| vlan_hwaccel_receive_skb(skb, 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 int 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 */ |
| |
| return 0; |
| } |
| |
| static int rtl8169_gset_xmii(struct net_device *dev, struct ethtool_cmd *cmd) |
| { |
| struct rtl8169_private *tp = netdev_priv(dev); |
| |
| return mii_ethtool_gset(&tp->mii, cmd); |
| } |
| |
| static int rtl8169_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) |
| { |
| struct rtl8169_private *tp = netdev_priv(dev); |
| unsigned long flags; |
| int rc; |
| |
| spin_lock_irqsave(&tp->lock, flags); |
| |
| rc = tp->get_settings(dev, cmd); |
| |
| spin_unlock_irqrestore(&tp->lock, flags); |
| return rc; |
| } |
| |
| 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", |
| }; |
| |
| 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_update_counters(struct net_device *dev) |
| { |
| struct rtl8169_private *tp = netdev_priv(dev); |
| void __iomem *ioaddr = tp->mmio_addr; |
| struct rtl8169_counters *counters; |
| dma_addr_t paddr; |
| u32 cmd; |
| int wait = 1000; |
| |
| /* |
| * Some chips are unable to dump tally counters when the receiver |
| * is disabled. |
| */ |
| if ((RTL_R8(ChipCmd) & CmdRxEnb) == 0) |
| return; |
| |
| counters = pci_alloc_consistent(tp->pci_dev, sizeof(*counters), &paddr); |
| if (!counters) |
| return; |
| |
| RTL_W32(CounterAddrHigh, (u64)paddr >> 32); |
| cmd = (u64)paddr & DMA_BIT_MASK(32); |
| RTL_W32(CounterAddrLow, cmd); |
| RTL_W32(CounterAddrLow, cmd | CounterDump); |
| |
| while (wait--) { |
| if ((RTL_R32(CounterAddrLow) & CounterDump) == 0) { |
| /* copy updated counters */ |
| memcpy(&tp->counters, counters, sizeof(*counters)); |
| break; |
| } |
| udelay(10); |
| } |
| |
| RTL_W32(CounterAddrLow, 0); |
| RTL_W32(CounterAddrHigh, 0); |
| |
| pci_free_consistent(tp->pci_dev, sizeof(*counters), counters, paddr); |
| } |
| |
| static void rtl8169_get_ethtool_stats(struct net_device *dev, |
| struct ethtool_stats *stats, u64 *data) |
| { |
| struct rtl8169_private *tp = netdev_priv(dev); |
| |
| ASSERT_RTNL(); |
| |
| rtl8169_update_counters(dev); |
| |
| data[0] = le64_to_cpu(tp->counters.tx_packets); |
| data[1] = le64_to_cpu(tp->counters.rx_packets); |
| data[2] = le64_to_cpu(tp->counters.tx_errors); |
| data[3] = le32_to_cpu(tp->counters.rx_errors); |
| data[4] = le16_to_cpu(tp->counters.rx_missed); |
| data[5] = le16_to_cpu(tp->counters.align_errors); |
| data[6] = le32_to_cpu(tp->counters.tx_one_collision); |
| data[7] = le32_to_cpu(tp->counters.tx_multi_collision); |
| data[8] = le64_to_cpu(tp->counters.rx_unicast); |
| data[9] = le64_to_cpu(tp->counters.rx_broadcast); |
| data[10] = le32_to_cpu(tp->counters.rx_multicast); |
| data[11] = le16_to_cpu(tp->counters.tx_aborted); |
| data[12] = le16_to_cpu(tp->counters.tx_underun); |
| } |
| |
| 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_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[] = { |
| /* 8168D family. */ |
| { 0x7c800000, 0x28000000, RTL_GIGA_MAC_VER_25 }, |
| |
| /* 8168C family. */ |
| { 0x7cf00000, 0x3ca00000, RTL_GIGA_MAC_VER_24 }, |
| { 0x7cf00000, 0x3c900000, RTL_GIGA_MAC_VER_23 }, |
| { 0x7cf00000, 0x3c800000, RTL_GIGA_MAC_VER_18 }, |
| { 0x7c800000, 0x3c800000, RTL_GIGA_MAC_VER_24 }, |
| { 0x7cf00000, 0x3c000000, RTL_GIGA_MAC_VER_19 }, |
| { 0x7cf00000, 0x3c200000, RTL_GIGA_MAC_VER_20 }, |
| { 0x7cf00000, 0x3c300000, RTL_GIGA_MAC_VER_21 }, |
| { 0x7cf00000, 0x3c400000, RTL_GIGA_MAC_VER_22 }, |
| { 0x7c800000, 0x3c000000, RTL_GIGA_MAC_VER_22 }, |
| |
| /* 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, 0x34a00000, RTL_GIGA_MAC_VER_09 }, |
| { 0x7cf00000, 0x24a00000, RTL_GIGA_MAC_VER_09 }, |
| { 0x7cf00000, 0x34900000, RTL_GIGA_MAC_VER_08 }, |
| { 0x7cf00000, 0x24900000, RTL_GIGA_MAC_VER_08 }, |
| { 0x7cf00000, 0x34800000, RTL_GIGA_MAC_VER_07 }, |
| { 0x7cf00000, 0x24800000, RTL_GIGA_MAC_VER_07 }, |
| { 0x7cf00000, 0x34000000, RTL_GIGA_MAC_VER_13 }, |
| { 0x7cf00000, 0x34300000, RTL_GIGA_MAC_VER_10 }, |
| { 0x7cf00000, 0x34200000, RTL_GIGA_MAC_VER_16 }, |
| { 0x7c800000, 0x34800000, RTL_GIGA_MAC_VER_09 }, |
| { 0x7c800000, 0x24800000, RTL_GIGA_MAC_VER_09 }, |
| { 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 }, |
| |
| /* Catch-all */ |
| { 0x00000000, 0x00000000, RTL_GIGA_MAC_NONE } |
| }, *p = mac_info; |
| u32 reg; |
| |
| reg = RTL_R32(TxConfig); |
| while ((reg & p->mask) != p->val) |
| p++; |
| tp->mac_version = p->mac_version; |
| } |
| |
| 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 phy_reg phy_reg_init[] = { |
| { 0x1f, 0x0001 }, |
| { 0x06, 0x006e }, |
| { 0x08, 0x0708 }, |
| { 0x15, 0x4000 }, |
| { 0x18, 0x65c7 }, |
| |
| { 0x1f, 0x0001 }, |
| { 0x03, 0x00a1 }, |
| { 0x02, 0x0008 }, |
| { 0x01, 0x0120 }, |
| { 0x00, 0x1000 }, |
| { 0x04, 0x0800 }, |
| { 0x04, 0x0000 }, |
| |
| { 0x03, 0xff41 }, |
| { 0x02, 0xdf60 }, |
| { 0x01, 0x0140 }, |
| { 0x00, 0x0077 }, |
| { 0x04, 0x7800 }, |
| { 0x04, 0x7000 }, |
| |
| { 0x03, 0x802f }, |
| { 0x02, 0x4f02 }, |
| { 0x01, 0x0409 }, |
| { 0x00, 0xf0f9 }, |
| { 0x04, 0x9800 }, |
| { 0x04, 0x9000 }, |
| |
| { 0x03, 0xdf01 }, |
| { 0x02, 0xdf20 }, |
| { 0x01, 0xff95 }, |
| { 0x00, 0xba00 }, |
| { 0x04, 0xa800 }, |
| { 0x04, 0xa000 }, |
| |
| { 0x03, 0xff41 }, |
| { 0x02, 0xdf20 }, |
| { 0x01, 0x0140 }, |
| { 0x00, 0x00bb }, |
| { 0x04, 0xb800 }, |
| { 0x04, 0xb000 }, |
| |
| { 0x03, 0xdf41 }, |
| { 0x02, 0xdc60 }, |
| { 0x01, 0x6340 }, |
| { 0x00, 0x007d }, |
| { 0x04, 0xd800 }, |
| { 0x04, 0xd000 }, |
| |
| { 0x03, 0xdf01 }, |
| { 0x02, 0xdf20 }, |
| { 0x01, 0x100a }, |
| { 0x00, 0xa0ff }, |
| { 0x04, 0xf800 }, |
| { 0x04, 0xf000 }, |
| |
| { 0x1f, 0x0000 }, |
| { 0x0b, 0x0000 }, |
| { 0x00, 0x9200 } |
| }; |
| |
| rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init)); |
| } |
| |
| 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 rtl8169scd_hw_phy_config_quirk(struct rtl8169_private *tp, |
| void __iomem *ioaddr) |
| { |
| struct pci_dev *pdev = tp->pci_dev; |
| u16 vendor_id, device_id; |
| |
| pci_read_config_word(pdev, PCI_SUBSYSTEM_VENDOR_ID, &vendor_id); |
| pci_read_config_word(pdev, PCI_SUBSYSTEM_ID, &device_id); |
| |
| if ((vendor_id != PCI_VENDOR_ID_GIGABYTE) || (device_id != 0xe000)) |
| return; |
| |
| mdio_write(ioaddr, 0x1f, 0x0001); |
| mdio_write(ioaddr, 0x10, 0xf01b); |
| mdio_write(ioaddr, 0x1f, 0x0000); |
| } |
| |
| static void rtl8169scd_hw_phy_config(struct rtl8169_private *tp, |
| void __iomem *ioaddr) |
| { |
| struct phy_reg phy_reg_init[] = { |
| { 0x1f, 0x0001 }, |
| { 0x04, 0x0000 }, |
| { 0x03, 0x00a1 }, |
| { 0x02, 0x0008 }, |
| { 0x01, 0x0120 }, |
| { 0x00, 0x1000 }, |
| { 0x04, 0x0800 }, |
| { 0x04, 0x9000 }, |
| { 0x03, 0x802f }, |
| { 0x02, 0x4f02 }, |
| { 0x01, 0x0409 }, |
| { 0x00, 0xf099 }, |
| { 0x04, 0x9800 }, |
| { 0x04, 0xa000 }, |
| { 0x03, 0xdf01 }, |
| { 0x02, 0xdf20 }, |
| { 0x01, 0xff95 }, |
| { 0x00, 0xba00 }, |
| { 0x04, 0xa800 }, |
| { 0x04, 0xf000 }, |
| { 0x03, 0xdf01 }, |
| { 0x02, 0xdf20 }, |
| { 0x01, 0x101a }, |
| { 0x00, 0xa0ff }, |
| { 0x04, 0xf800 }, |
| { 0x04, 0x0000 }, |
| { 0x1f, 0x0000 }, |
| |
| { 0x1f, 0x0001 }, |
| { 0x10, 0xf41b }, |
| { 0x14, 0xfb54 }, |
| { 0x18, 0xf5c7 }, |
| { 0x1f, 0x0000 }, |
| |
| { 0x1f, 0x0001 }, |
| { 0x17, 0x0cc0 }, |
| { 0x1f, 0x0000 } |
| }; |
| |
| rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init)); |
| |
| rtl8169scd_hw_phy_config_quirk(tp, ioaddr); |
| } |
| |
| static void rtl8169sce_hw_phy_config(void __iomem *ioaddr) |
| { |
| struct phy_reg phy_reg_init[] = { |
| { 0x1f, 0x0001 }, |
| { 0x04, 0x0000 }, |
| { 0x03, 0x00a1 }, |
| { 0x02, 0x0008 }, |
| { 0x01, 0x0120 }, |
| { 0x00, 0x1000 }, |
| { 0x04, 0x0800 }, |
| { 0x04, 0x9000 }, |
| { 0x03, 0x802f }, |
| { 0x02, 0x4f02 }, |
| { 0x01, 0x0409 }, |
| { 0x00, 0xf099 }, |
| { 0x04, 0x9800 }, |
| { 0x04, 0xa000 }, |
| { 0x03, 0xdf01 }, |
| { 0x02, 0xdf20 }, |
| { 0x01, 0xff95 }, |
| { 0x00, 0xba00 }, |
| { 0x04, 0xa800 }, |
| { 0x04, 0xf000 }, |
| { 0x03, 0xdf01 }, |
| { 0x02, 0xdf20 }, |
| { 0x01, 0x101a }, |
| { 0x00, 0xa0ff }, |
| { 0x04, 0xf800 }, |
| { 0x04, 0x0000 }, |
| { 0x1f, 0x0000 }, |
| |
| { 0x1f, 0x0001 }, |
| { 0x0b, 0x8480 }, |
| { 0x1f, 0x0000 }, |
| |
| { 0x1f, 0x0001 }, |
| { 0x18, 0x67c7 }, |
| { 0x04, 0x2000 }, |
| { 0x03, 0x002f }, |
| { 0x02, 0x4360 }, |
| { 0x01, 0x0109 }, |
| { 0x00, 0x3022 }, |
| { 0x04, 0x2800 }, |
| { 0x1f, 0x0000 }, |
| |
| { 0x1f, 0x0001 }, |
| { 0x17, 0x0cc0 }, |
| { 0x1f, 0x0000 } |
| }; |
| |
| rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init)); |
| } |
| |
| static void rtl8168bb_hw_phy_config(void __iomem *ioaddr) |
| { |
| struct phy_reg phy_reg_init[] = { |
| { 0x10, 0xf41b }, |
| { 0x1f, 0x0000 } |
| }; |
| |
| mdio_write(ioaddr, 0x1f, 0x0001); |
| mdio_patch(ioaddr, 0x16, 1 << 0); |
| |
| rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init)); |
| } |
| |
| static void rtl8168bef_hw_phy_config(void __iomem *ioaddr) |
| { |
| struct phy_reg phy_reg_init[] = { |
| { 0x1f, 0x0001 }, |
| { 0x10, 0xf41b }, |
| { 0x1f, 0x0000 } |
| }; |
| |
| rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init)); |
| } |
| |
| static void rtl8168cp_1_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 rtl8168cp_2_hw_phy_config(void __iomem *ioaddr) |
| { |
| struct phy_reg phy_reg_init[] = { |
| { 0x1f, 0x0001 }, |
| { 0x1d, 0x3d98 }, |
| { 0x1f, 0x0000 } |
| }; |
| |
| mdio_write(ioaddr, 0x1f, 0x0000); |
| mdio_patch(ioaddr, 0x14, 1 << 5); |
| mdio_patch(ioaddr, 0x0d, 1 << 5); |
| |
| rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init)); |
| } |
| |
| static void rtl8168c_1_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 }, |
| { 0x1f, 0x0000 }, |
| { 0x09, 0x2000 }, |
| { 0x09, 0x0000 } |
| }; |
| |
| rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init)); |
| |
| mdio_patch(ioaddr, 0x14, 1 << 5); |
| mdio_patch(ioaddr, 0x0d, 1 << 5); |
| mdio_write(ioaddr, 0x1f, 0x0000); |
| } |
| |
| static void rtl8168c_2_hw_phy_config(void __iomem *ioaddr) |
| { |
| struct phy_reg phy_reg_init[] = { |
| { 0x1f, 0x0001 }, |
| { 0x12, 0x2300 }, |
| { 0x03, 0x802f }, |
| { 0x02, 0x4f02 }, |
| { 0x01, 0x0409 }, |
| { 0x00, 0xf099 }, |
| { 0x04, 0x9800 }, |
| { 0x04, 0x9000 }, |
| { 0x1d, 0x3d98 }, |
| { 0x1f, 0x0002 }, |
| { 0x0c, 0x7eb8 }, |
| { 0x06, 0x0761 }, |
| { 0x1f, 0x0003 }, |
| { 0x16, 0x0f0a }, |
| { 0x1f, 0x0000 } |
| }; |
| |
| rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init)); |
| |
| mdio_patch(ioaddr, 0x16, 1 << 0); |
| mdio_patch(ioaddr, 0x14, 1 << 5); |
| mdio_patch(ioaddr, 0x0d, 1 << 5); |
| mdio_write(ioaddr, 0x1f, 0x0000); |
| } |
| |
| static void rtl8168c_3_hw_phy_config(void __iomem *ioaddr) |
| { |
| struct phy_reg phy_reg_init[] = { |
| { 0x1f, 0x0001 }, |
| { 0x12, 0x2300 }, |
| { 0x1d, 0x3d98 }, |
| { 0x1f, 0x0002 }, |
| { 0x0c, 0x7eb8 }, |
| { 0x06, 0x5461 }, |
| { 0x1f, 0x0003 }, |
| { 0x16, 0x0f0a }, |
| { 0x1f, 0x0000 } |
| }; |
| |
| rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init)); |
| |
| mdio_patch(ioaddr, 0x16, 1 << 0); |
| mdio_patch(ioaddr, 0x14, 1 << 5); |
| mdio_patch(ioaddr, 0x0d, 1 << 5); |
| mdio_write(ioaddr, 0x1f, 0x0000); |
| } |
| |
| static void rtl8168c_4_hw_phy_config(void __iomem *ioaddr) |
| { |
| rtl8168c_3_hw_phy_config(ioaddr); |
| } |
| |
| static void rtl8168d_hw_phy_config(void __iomem *ioaddr) |
| { |
| struct phy_reg phy_reg_init_0[] = { |
| { 0x1f, 0x0001 }, |
| { 0x09, 0x2770 }, |
| { 0x08, 0x04d0 }, |
| { 0x0b, 0xad15 }, |
| { 0x0c, 0x5bf0 }, |
| { 0x1c, 0xf101 }, |
| { 0x1f, 0x0003 }, |
| { 0x14, 0x94d7 }, |
| { 0x12, 0xf4d6 }, |
| { 0x09, 0xca0f }, |
| { 0x1f, 0x0002 }, |
| { 0x0b, 0x0b10 }, |
| { 0x0c, 0xd1f7 }, |
| { 0x1f, 0x0002 }, |
| { 0x06, 0x5461 }, |
| { 0x1f, 0x0002 }, |
| { 0x05, 0x6662 }, |
| { 0x1f, 0x0000 }, |
| { 0x14, 0x0060 }, |
| { 0x1f, 0x0000 }, |
| { 0x0d, 0xf8a0 }, |
| { 0x1f, 0x0005 }, |
| { 0x05, 0xffc2 } |
| }; |
| |
| rtl_phy_write(ioaddr, phy_reg_init_0, ARRAY_SIZE(phy_reg_init_0)); |
| |
| if (mdio_read(ioaddr, 0x06) == 0xc400) { |
| struct phy_reg phy_reg_init_1[] = { |
| { 0x1f, 0x0005 }, |
| { 0x01, 0x0300 }, |
| { 0x1f, 0x0000 }, |
| { 0x11, 0x401c }, |
| { 0x16, 0x4100 }, |
| { 0x1f, 0x0005 }, |
| { 0x07, 0x0010 }, |
| { 0x05, 0x83dc }, |
| { 0x06, 0x087d }, |
| { 0x05, 0x8300 }, |
| { 0x06, 0x0101 }, |
| { 0x06, 0x05f8 }, |
| { 0x06, 0xf9fa }, |
| { 0x06, 0xfbef }, |
| { 0x06, 0x79e2 }, |
| { 0x06, 0x835f }, |
| { 0x06, 0xe0f8 }, |
| { 0x06, 0x9ae1 }, |
| { 0x06, 0xf89b }, |
| { 0x06, 0xef31 }, |
| { 0x06, 0x3b65 }, |
| { 0x06, 0xaa07 }, |
| { 0x06, 0x81e4 }, |
| { 0x06, 0xf89a }, |
| { 0x06, 0xe5f8 }, |
| { 0x06, 0x9baf }, |
| { 0x06, 0x06ae }, |
| { 0x05, 0x83dc }, |
| { 0x06, 0x8300 }, |
| }; |
| |
| rtl_phy_write(ioaddr, phy_reg_init_1, |
| ARRAY_SIZE(phy_reg_init_1)); |
| } |
| |
| mdio_write(ioaddr, 0x1f, 0x0000); |
| } |
| |
| static void rtl8102e_hw_phy_config(void __iomem *ioaddr) |
| { |
| struct phy_reg phy_reg_init[] = { |
| { 0x1f, 0x0003 }, |
| { 0x08, 0x441d }, |
| { 0x01, 0x9100 }, |
| { 0x1f, 0x0000 } |
| }; |
| |
| mdio_write(ioaddr, 0x1f, 0x0000); |
| mdio_patch(ioaddr, 0x11, 1 << 12); |
| mdio_patch(ioaddr, 0x19, 1 << 13); |
| mdio_patch(ioaddr, 0x10, 1 << 15); |
| |
| 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_05: |
| rtl8169scd_hw_phy_config(tp, ioaddr); |
| break; |
| case RTL_GIGA_MAC_VER_06: |
| rtl8169sce_hw_phy_config(ioaddr); |
| break; |
| case RTL_GIGA_MAC_VER_07: |
| case RTL_GIGA_MAC_VER_08: |
| case RTL_GIGA_MAC_VER_09: |
| rtl8102e_hw_phy_config(ioaddr); |
| break; |
| case RTL_GIGA_MAC_VER_11: |
| rtl8168bb_hw_phy_config(ioaddr); |
| break; |
| case RTL_GIGA_MAC_VER_12: |
| rtl8168bef_hw_phy_config(ioaddr); |
| break; |
| case RTL_GIGA_MAC_VER_17: |
| rtl8168bef_hw_phy_config(ioaddr); |
| break; |
| case RTL_GIGA_MAC_VER_18: |
| rtl8168cp_1_hw_phy_config(ioaddr); |
| break; |
| case RTL_GIGA_MAC_VER_19: |
| rtl8168c_1_hw_phy_config(ioaddr); |
| break; |
| case RTL_GIGA_MAC_VER_20: |
| rtl8168c_2_hw_phy_config(ioaddr); |
| break; |
| case RTL_GIGA_MAC_VER_21: |
| rtl8168c_3_hw_phy_config(ioaddr); |
| break; |
| case RTL_GIGA_MAC_VER_22: |
| rtl8168c_4_hw_phy_config(ioaddr); |
| break; |
| case RTL_GIGA_MAC_VER_23: |
| case RTL_GIGA_MAC_VER_24: |
| rtl8168cp_2_hw_phy_config(ioaddr); |
| break; |
| case RTL_GIGA_MAC_VER_25: |
| rtl8168d_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); |
| |
| if (tp->mac_version <= RTL_GIGA_MAC_VER_06) { |
| 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); |
| |
| return netif_running(dev) ? tp->do_ioctl(tp, data, cmd) : -ENODEV; |
| } |
| |
| static int rtl_xmii_ioctl(struct rtl8169_private *tp, struct mii_ioctl_data *data, int cmd) |
| { |
| 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 int rtl_tbi_ioctl(struct rtl8169_private *tp, struct mii_ioctl_data *data, int cmd) |
| { |
| 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 features; |
| u8 default_ver; |
| } 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, |
| .features = RTL_FEATURE_GMII, |
| .default_ver = RTL_GIGA_MAC_VER_01, |
| }, |
| [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, |
| .features = RTL_FEATURE_GMII | RTL_FEATURE_MSI, |
| .default_ver = RTL_GIGA_MAC_VER_11, |
| }, |
| [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, |
| .features = RTL_FEATURE_MSI, |
| .default_ver = RTL_GIGA_MAC_VER_13, |
| } |
| }; |
| |
| /* 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->features & RTL_FEATURE_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 const struct net_device_ops rtl8169_netdev_ops = { |
| .ndo_open = rtl8169_open, |
| .ndo_stop = rtl8169_close, |
| .ndo_get_stats = rtl8169_get_stats, |
| .ndo_start_xmit = rtl8169_start_xmit, |
| .ndo_tx_timeout = rtl8169_tx_timeout, |
| .ndo_validate_addr = eth_validate_addr, |
| .ndo_change_mtu = rtl8169_change_mtu, |
| .ndo_set_mac_address = rtl_set_mac_address, |
| .ndo_do_ioctl = rtl8169_ioctl, |
| .ndo_set_multicast_list = rtl_set_rx_mode, |
| #ifdef CONFIG_R8169_VLAN |
| .ndo_vlan_rx_register = rtl8169_vlan_rx_register, |
| #endif |
| #ifdef CONFIG_NET_POLL_CONTROLLER |
| .ndo_poll_controller = rtl8169_netpoll, |
| #endif |
| |
| }; |
| |
| 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 mii_if_info *mii; |
| 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); |
| dev->netdev_ops = &rtl8169_netdev_ops; |
| tp = netdev_priv(dev); |
| tp->dev = dev; |
| tp->pci_dev = pdev; |
| tp->msg_enable = netif_msg_init(debug.msg_enable, R8169_MSG_DEFAULT); |
| |
| mii = &tp->mii; |
| mii->dev = dev; |
| mii->mdio_read = rtl_mdio_read; |
| mii->mdio_write = rtl_mdio_write; |
| mii->phy_id_mask = 0x1f; |
| mii->reg_num_mask = 0x1f; |
| mii->supports_gmii = !!(cfg->features & RTL_FEATURE_GMII); |
| |
| /* 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_BIT_MASK(64)) && use_dac) { |
| tp->cp_cmd |= PCIDAC; |
| dev->features |= NETIF_F_HIGHDMA; |
| } else { |
| rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); |
| if (rc < 0) { |
| if (netif_msg_probe(tp)) { |
| dev_err(&pdev->dev, |
| "DMA configuration failed.\n"); |
| } |
| goto err_out_free_res_4; |
| } |
| } |
| |
| /* 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; |
| } |
| |
| tp->pcie_cap = pci_find_capability(pdev, PCI_CAP_ID_EXP); |
| if (!tp->pcie_cap && netif_msg_probe(tp)) |
| dev_info(&pdev->dev, "no PCI Express capability\n"); |
| |
| RTL_W16(IntrMask, 0x0000); |
| |
| /* 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); |
| } |
| |
| RTL_W16(IntrStatus, 0xffff); |
| |
| pci_set_master(pdev); |
| |
| /* Identify chip attached to board */ |
| rtl8169_get_mac_version(tp, ioaddr); |
| |
| /* Use appropriate default if unknown */ |
| if (tp->mac_version == RTL_GIGA_MAC_NONE) { |
| if (netif_msg_probe(tp)) { |
| dev_notice(&pdev->dev, |
| "unknown MAC, using family default\n"); |
| } |
| tp->mac_version = cfg->default_ver; |
| } |
| |
| rtl8169_print_mac_version(tp); |
| |
| for (i = 0; i < ARRAY_SIZE(rtl_chip_info); i++) { |
| if (tp->mac_version == rtl_chip_info[i].mac_version) |
| break; |
| } |
| if (i == ARRAY_SIZE(rtl_chip_info)) { |
| dev_err(&pdev->dev, |
| "driver bug, MAC version not found in rtl_chip_info\n"); |
| goto err_out_msi_5; |
| } |
| tp->chipset = i; |
| |
| RTL_W8(Cfg9346, Cfg9346_Unlock); |
| RTL_W8(Config1, RTL_R8(Config1) | PMEnable); |
| RTL_W8(Config5, RTL_R8(Config5) & PMEStatus); |
| if ((RTL_R8(Config3) & (LinkUp | MagicPacket)) != 0) |
| tp->features |= RTL_FEATURE_WOL; |
| if ((RTL_R8(Config5) & (UWF | BWF | MWF)) != 0) |
| tp->features |= RTL_FEATURE_WOL; |
| tp->features |= rtl_try_msi(pdev, ioaddr, cfg); |
| RTL_W8(Cfg9346, Cfg9346_Lock); |
| |
| if ((tp->mac_version <= RTL_GIGA_MAC_VER_06) && |
| (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->do_ioctl = rtl_tbi_ioctl; |
| |
| 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; |
| tp->do_ioctl = rtl_xmii_ioctl; |
| } |
| |
| spin_lock_init(&tp->lock); |
| |
| tp->mmio_addr = ioaddr; |
| |
| /* Get MAC address */ |
| 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); |
| |
| SET_ETHTOOL_OPS(dev, &rtl8169_ethtool_ops); |
| dev->watchdog_timeo = RTL8169_TX_TIMEOUT; |
| dev->irq = pdev->irq; |
| dev->base_addr = (unsigned long) ioaddr; |
| |
| netif_napi_add(dev, &tp->napi, rtl8169_poll, R8169_NAPI_WEIGHT); |
| |
| #ifdef CONFIG_R8169_VLAN |
| dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX; |
| #endif |
| |
| tp->intr_mask = 0xffff; |
| 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; |
| |
| 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) & 0x9cf0f8ff; |
| |
| 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); |
| device_set_wakeup_enable(&pdev->dev, tp->features & RTL_FEATURE_WOL); |
| |
| 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; |
| |
| napi_enable(&tp->napi); |
| |
| 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_BIT_MASK(32)); |
| RTL_W32(RxDescAddrHigh, ((u64) tp->RxPhyAddr) >> 32); |
| RTL_W32(RxDescAddrLow, ((u64) tp->RxPhyAddr) & DMA_BIT_MASK(32)); |
| } |
| |
| 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, unsigned int rx_buf_sz) |
| { |
| /* Low hurts. Let's disable the filtering. */ |
| RTL_W16(RxMaxSize, rx_buf_sz); |
| } |
| |
| 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++, p++) { |
| 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, tp->rx_buf_sz); |
| |
| 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_tx_performance_tweak(struct pci_dev *pdev, u16 force) |
| { |
| struct net_device *dev = pci_get_drvdata(pdev); |
| struct rtl8169_private *tp = netdev_priv(dev); |
| int cap = tp->pcie_cap; |
| |
| if (cap) { |
| u16 ctl; |
| |
| pci_read_config_word(pdev, cap + PCI_EXP_DEVCTL, &ctl); |
| ctl = (ctl & ~PCI_EXP_DEVCTL_READRQ) | force; |
| pci_write_config_word(pdev, cap + PCI_EXP_DEVCTL, ctl); |
| } |
| } |
| |
| static void rtl_csi_access_enable(void __iomem *ioaddr) |
| { |
| u32 csi; |
| |
| csi = rtl_csi_read(ioaddr, 0x070c) & 0x00ffffff; |
| rtl_csi_write(ioaddr, 0x070c, csi | 0x27000000); |
| } |
| |
| struct ephy_info { |
| unsigned int offset; |
| u16 mask; |
| u16 bits; |
| }; |
| |
| static void rtl_ephy_init(void __iomem *ioaddr, struct ephy_info *e, int len) |
| { |
| u16 w; |
| |
| while (len-- > 0) { |
| w = (rtl_ephy_read(ioaddr, e->offset) & ~e->mask) | e->bits; |
| rtl_ephy_write(ioaddr, e->offset, w); |
| e++; |
| } |
| } |
| |
| static void rtl_disable_clock_request(struct pci_dev *pdev) |
| { |
| struct net_device *dev = pci_get_drvdata(pdev); |
| struct rtl8169_private *tp = netdev_priv(dev); |
| int cap = tp->pcie_cap; |
| |
| if (cap) { |
| u16 ctl; |
| |
| pci_read_config_word(pdev, cap + PCI_EXP_LNKCTL, &ctl); |
| ctl &= ~PCI_EXP_LNKCTL_CLKREQ_EN; |
| pci_write_config_word(pdev, cap + PCI_EXP_LNKCTL, ctl); |
| } |
| } |
| |
| #define R8168_CPCMD_QUIRK_MASK (\ |
| EnableBist | \ |
| Mac_dbgo_oe | \ |
| Force_half_dup | \ |
| Force_rxflow_en | \ |
| Force_txflow_en | \ |
| Cxpl_dbg_sel | \ |
| ASF | \ |
| PktCntrDisable | \ |
| Mac_dbgo_sel) |
| |
| static void rtl_hw_start_8168bb(void __iomem *ioaddr, struct pci_dev *pdev) |
| { |
| RTL_W8(Config3, RTL_R8(Config3) & ~Beacon_en); |
| |
| RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) & ~R8168_CPCMD_QUIRK_MASK); |
| |
| rtl_tx_performance_tweak(pdev, |
| (0x5 << MAX_READ_REQUEST_SHIFT) | PCI_EXP_DEVCTL_NOSNOOP_EN); |
| } |
| |
| static void rtl_hw_start_8168bef(void __iomem *ioaddr, struct pci_dev *pdev) |
| { |
| rtl_hw_start_8168bb(ioaddr, pdev); |
| |
| RTL_W8(EarlyTxThres, EarlyTxThld); |
| |
| RTL_W8(Config4, RTL_R8(Config4) & ~(1 << 0)); |
| } |
| |
| static void __rtl_hw_start_8168cp(void __iomem *ioaddr, struct pci_dev *pdev) |
| { |
| RTL_W8(Config1, RTL_R8(Config1) | Speed_down); |
| |
| RTL_W8(Config3, RTL_R8(Config3) & ~Beacon_en); |
| |
| rtl_tx_performance_tweak(pdev, 0x5 << MAX_READ_REQUEST_SHIFT); |
| |
| rtl_disable_clock_request(pdev); |
| |
| RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) & ~R8168_CPCMD_QUIRK_MASK); |
| } |
| |
| static void rtl_hw_start_8168cp_1(void __iomem *ioaddr, struct pci_dev *pdev) |
| { |
| static struct ephy_info e_info_8168cp[] = { |
| { 0x01, 0, 0x0001 }, |
| { 0x02, 0x0800, 0x1000 }, |
| { 0x03, 0, 0x0042 }, |
| { 0x06, 0x0080, 0x0000 }, |
| { 0x07, 0, 0x2000 } |
| }; |
| |
| rtl_csi_access_enable(ioaddr); |
| |
| rtl_ephy_init(ioaddr, e_info_8168cp, ARRAY_SIZE(e_info_8168cp)); |
| |
| __rtl_hw_start_8168cp(ioaddr, pdev); |
| } |
| |
| static void rtl_hw_start_8168cp_2(void __iomem *ioaddr, struct pci_dev *pdev) |
| { |
| rtl_csi_access_enable(ioaddr); |
| |
| RTL_W8(Config3, RTL_R8(Config3) & ~Beacon_en); |
| |
| rtl_tx_performance_tweak(pdev, 0x5 << MAX_READ_REQUEST_SHIFT); |
| |
| RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) & ~R8168_CPCMD_QUIRK_MASK); |
| } |
| |
| static void rtl_hw_start_8168cp_3(void __iomem *ioaddr, struct pci_dev *pdev) |
| { |
| rtl_csi_access_enable(ioaddr); |
| |
| RTL_W8(Config3, RTL_R8(Config3) & ~Beacon_en); |
| |
| /* Magic. */ |
| RTL_W8(DBG_REG, 0x20); |
| |
| RTL_W8(EarlyTxThres, EarlyTxThld); |
| |
| rtl_tx_performance_tweak(pdev, 0x5 << MAX_READ_REQUEST_SHIFT); |
| |
| RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) & ~R8168_CPCMD_QUIRK_MASK); |
| } |
| |
| static void rtl_hw_start_8168c_1(void __iomem *ioaddr, struct pci_dev *pdev) |
| { |
| static struct ephy_info e_info_8168c_1[] = { |
| { 0x02, 0x0800, 0x1000 }, |
| { 0x03, 0, 0x0002 }, |
| { 0x06, 0x0080, 0x0000 } |
| }; |
| |
| rtl_csi_access_enable(ioaddr); |
| |
| RTL_W8(DBG_REG, 0x06 | FIX_NAK_1 | FIX_NAK_2); |
| |
| rtl_ephy_init(ioaddr, e_info_8168c_1, ARRAY_SIZE(e_info_8168c_1)); |
| |
| __rtl_hw_start_8168cp(ioaddr, pdev); |
| } |
| |
| static void rtl_hw_start_8168c_2(void __iomem *ioaddr, struct pci_dev *pdev) |
| { |
| static struct ephy_info e_info_8168c_2[] = { |
| { 0x01, 0, 0x0001 }, |
| { 0x03, 0x0400, 0x0220 } |
| }; |
| |
| rtl_csi_access_enable(ioaddr); |
| |
| rtl_ephy_init(ioaddr, e_info_8168c_2, ARRAY_SIZE(e_info_8168c_2)); |
| |
| __rtl_hw_start_8168cp(ioaddr, pdev); |
| } |
| |
| static void rtl_hw_start_8168c_3(void __iomem *ioaddr, struct pci_dev *pdev) |
| { |
| rtl_hw_start_8168c_2(ioaddr, pdev); |
| } |
| |
| static void rtl_hw_start_8168c_4(void __iomem *ioaddr, struct pci_dev *pdev) |
| { |
| rtl_csi_access_enable(ioaddr); |
| |
| __rtl_hw_start_8168cp(ioaddr, pdev); |
| } |
| |
| static void rtl_hw_start_8168d(void __iomem *ioaddr, struct pci_dev *pdev) |
| { |
| rtl_csi_access_enable(ioaddr); |
| |
| rtl_disable_clock_request(pdev); |
| |
| RTL_W8(EarlyTxThres, EarlyTxThld); |
| |
| rtl_tx_performance_tweak(pdev, 0x5 << MAX_READ_REQUEST_SHIFT); |
| |
| RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) & ~R8168_CPCMD_QUIRK_MASK); |
| } |
| |
| 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; |
| |
| RTL_W8(Cfg9346, Cfg9346_Unlock); |
| |
| RTL_W8(EarlyTxThres, EarlyTxThld); |
| |
| rtl_set_rx_max_size(ioaddr, tp->rx_buf_sz); |
| |
| tp->cp_cmd |= RTL_R16(CPlusCmd) | PktCntrDisable | INTT_1; |
| |
| RTL_W16(CPlusCmd, tp->cp_cmd); |
| |
| 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_set_rx_mode(dev); |
| |
| RTL_W32(TxConfig, (TX_DMA_BURST << TxDMAShift) | |
| (InterFrameGap << TxInterFrameGapShift)); |
| |
| RTL_R8(IntrMask); |
| |
| switch (tp->mac_version) { |
| case RTL_GIGA_MAC_VER_11: |
| rtl_hw_start_8168bb(ioaddr, pdev); |
| break; |
| |
| case RTL_GIGA_MAC_VER_12: |
| case RTL_GIGA_MAC_VER_17: |
| rtl_hw_start_8168bef(ioaddr, pdev); |
| break; |
| |
| case RTL_GIGA_MAC_VER_18: |
| rtl_hw_start_8168cp_1(ioaddr, pdev); |
| break; |
| |
| case RTL_GIGA_MAC_VER_19: |
| rtl_hw_start_8168c_1(ioaddr, pdev); |
| break; |
| |
| case RTL_GIGA_MAC_VER_20: |
| rtl_hw_start_8168c_2(ioaddr, pdev); |
| break; |
| |
| case RTL_GIGA_MAC_VER_21: |
| rtl_hw_start_8168c_3(ioaddr, pdev); |
| break; |
| |
| case RTL_GIGA_MAC_VER_22: |
| rtl_hw_start_8168c_4(ioaddr, pdev); |
| break; |
| |
| case RTL_GIGA_MAC_VER_23: |
| rtl_hw_start_8168cp_2(ioaddr, pdev); |
| break; |
| |
| case RTL_GIGA_MAC_VER_24: |
| rtl_hw_start_8168cp_3(ioaddr, pdev); |
| break; |
| |
| case RTL_GIGA_MAC_VER_25: |
| rtl_hw_start_8168d(ioaddr, pdev); |
| break; |
| |
| default: |
| printk(KERN_ERR PFX "%s: unknown chipset (mac_version = %d).\n", |
| dev->name, tp->mac_version); |
| break; |
| } |
| |
| RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb); |
| |
| RTL_W8(Cfg9346, Cfg9346_Lock); |
| |
| RTL_W16(MultiIntr, RTL_R16(MultiIntr) & 0xF000); |
| |
| RTL_W16(IntrMask, tp->intr_event); |
| } |
| |
| #define R810X_CPCMD_QUIRK_MASK (\ |
| EnableBist | \ |
| Mac_dbgo_oe | \ |
| Force_half_dup | \ |
| Force_rxflow_en | \ |
| Force_txflow_en | \ |
| Cxpl_dbg_sel | \ |
| ASF | \ |
| PktCntrDisable | \ |
| PCIDAC | \ |
| PCIMulRW) |
| |
| static void rtl_hw_start_8102e_1(void __iomem *ioaddr, struct pci_dev *pdev) |
| { |
| static struct ephy_info e_info_8102e_1[] = { |
| { 0x01, 0, 0x6e65 }, |
| { 0x02, 0, 0x091f }, |
| { 0x03, 0, 0xc2f9 }, |
| { 0x06, 0, 0xafb5 }, |
| { 0x07, 0, 0x0e00 }, |
| { 0x19, 0, 0xec80 }, |
| { 0x01, 0, 0x2e65 }, |
| { 0x01, 0, 0x6e65 } |
| }; |
| u8 cfg1; |
| |
| rtl_csi_access_enable(ioaddr); |
| |
| RTL_W8(DBG_REG, FIX_NAK_1); |
| |
| rtl_tx_performance_tweak(pdev, 0x5 << MAX_READ_REQUEST_SHIFT); |
| |
| RTL_W8(Config1, |
| LEDS1 | LEDS0 | Speed_down | MEMMAP | IOMAP | VPD | PMEnable); |
| RTL_W8(Config3, RTL_R8(Config3) & ~Beacon_en); |
| |
| cfg1 = RTL_R8(Config1); |
| if ((cfg1 & LEDS0) && (cfg1 & LEDS1)) |
| RTL_W8(Config1, cfg1 & ~LEDS0); |
| |
| RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) & ~R810X_CPCMD_QUIRK_MASK); |
| |
| rtl_ephy_init(ioaddr, e_info_8102e_1, ARRAY_SIZE(e_info_8102e_1)); |
| } |
| |
| static void rtl_hw_start_8102e_2(void __iomem *ioaddr, struct pci_dev *pdev) |
| { |
| rtl_csi_access_enable(ioaddr); |
| |
| rtl_tx_performance_tweak(pdev, 0x5 << MAX_READ_REQUEST_SHIFT); |
| |
| RTL_W8(Config1, MEMMAP | IOMAP | VPD | PMEnable); |
| RTL_W8(Config3, RTL_R8(Config3) & ~Beacon_en); |
| |
| RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) & ~R810X_CPCMD_QUIRK_MASK); |
| } |
| |
| static void rtl_hw_start_8102e_3(void __iomem *ioaddr, struct pci_dev *pdev) |
| { |
| rtl_hw_start_8102e_2(ioaddr, pdev); |
| |
| rtl_ephy_write(ioaddr, 0x03, 0xc2f9); |
| } |
| |
| 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)) { |
| int cap = tp->pcie_cap; |
| |
| if (cap) { |
| pci_write_config_word(pdev, cap + PCI_EXP_DEVCTL, |
| PCI_EXP_DEVCTL_NOSNOOP_EN); |
| } |
| } |
| |
| switch (tp->mac_version) { |
| case RTL_GIGA_MAC_VER_07: |
| rtl_hw_start_8102e_1(ioaddr, pdev); |
| break; |
| |
| case RTL_GIGA_MAC_VER_08: |
| rtl_hw_start_8102e_3(ioaddr, pdev); |
| break; |
| |
| case RTL_GIGA_MAC_VER_09: |
| rtl_hw_start_8102e_2(ioaddr, pdev); |
| break; |
| } |
| |
| RTL_W8(Cfg9346, Cfg9346_Unlock); |
| |
| RTL_W8(EarlyTxThres, EarlyTxThld); |
| |
| rtl_set_rx_max_size(ioaddr, tp->rx_buf_sz); |
| |
| 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_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; |
| |
| napi_enable(&tp->napi); |
| |
| rtl_hw_start(dev); |
| |
| rtl8169_request_timer(dev); |
| |
| out: |
| return ret; |
| } |
| |
| static inline void rtl8169_make_unusable_by_asic(struct RxDesc *desc) |
| { |
| desc->addr = cpu_to_le64(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 */ |
| napi_disable(&tp->napi); |
| |
| rtl8169_irq_mask_and_ack(ioaddr); |
| |
| tp->intr_mask = 0xffff; |
| RTL_W16(IntrMask, tp->intr_event); |
| napi_enable(&tp->napi); |
| } |
| |
| 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 netdev_tx_t 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; |
| |
| 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; |
| 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); |
| |
| 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 NETDEV_TX_OK; |
| |
| err_stop: |
| netif_stop_queue(dev); |
| dev->stats.tx_dropped++; |
| return NETDEV_TX_BUSY; |
| } |
| |
| 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(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 = min(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, tp->rx_buf_sz, |
| 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) |
| netif_receive_skb(skb); |
| |
| dev->stats.rx_bytes += pkt_size; |
| dev->stats.rx_packets++; |
| } |
| |
| /* Work around for AMD plateform. */ |
| if ((desc->opts2 & cpu_to_le32(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); |
| void __iomem *ioaddr = tp->mmio_addr; |
| int handled = 0; |
| int status; |
| |
| /* loop handling interrupts until we have no new ones or |
| * we hit a invalid/hotplug case. |
| */ |
| status = RTL_R16(IntrStatus); |
| while (status && status != 0xffff) { |
| handled = 1; |
| |
| /* Handle all of the error cases first. These will reset |
| * the chip, so just exit the loop. |
| */ |
| if (unlikely(!netif_running(dev))) { |
| rtl8169_asic_down(ioaddr); |
| 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); |
| |
| /* We need to see the lastest version of tp->intr_mask to |
| * avoid ignoring an MSI interrupt and having to wait for |
| * another event which may never come. |
| */ |
| smp_rmb(); |
| if (status & tp->intr_mask & tp->napi_event) { |
| RTL_W16(IntrMask, tp->intr_event & ~tp->napi_event); |
| tp->intr_mask = ~tp->napi_event; |
| |
| if (likely(napi_schedule_prep(&tp->napi))) |
| __napi_schedule(&tp->napi); |
| else if (netif_msg_intr(tp)) { |
| printk(KERN_INFO "%s: interrupt %04x in poll\n", |
| dev->name, status); |
| } |
| } |
| |
| /* We only get a new MSI interrupt when all active irq |
| * sources on the chip have been acknowledged. So, ack |
| * everything we've seen and check if new sources have become |
| * active to avoid blocking all interrupts from the chip. |
| */ |
| RTL_W16(IntrStatus, |
| (status & RxFIFOOver) ? (status | RxOverflow) : status); |
| status = RTL_R16(IntrStatus); |
| } |
| |
| return IRQ_RETVAL(handled); |
| } |
| |
| 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) { |
| napi_complete(napi); |
| |
| /* We need for force the visibility of tp->intr_mask |
| * for other CPUs, as we can loose an MSI interrupt |
| * and potentially wait for a retransmit timeout if we don't. |
| * The posted write to IntrMask is safe, as it will |
| * eventually make it to the chip and we won't loose anything |
| * until it does. |
| */ |
| tp->intr_mask = 0xffff; |
| smp_wmb(); |
| RTL_W16(IntrMask, tp->intr_event); |
| } |
| |
| return work_done; |
| } |
| |
| static void rtl8169_rx_missed(struct net_device *dev, void __iomem *ioaddr) |
| { |
| struct rtl8169_private *tp = netdev_priv(dev); |
| |
| if (tp->mac_version > RTL_GIGA_MAC_VER_06) |
| return; |
| |
| dev->stats.rx_missed_errors += (RTL_R32(RxMissed) & 0xffffff); |
| RTL_W32(RxMissed, 0); |
| } |
| |
| static void rtl8169_down(struct net_device *dev) |
| { |
| struct rtl8169_private *tp = netdev_priv(dev); |
| void __iomem *ioaddr = tp->mmio_addr; |
| unsigned int intrmask; |
| |
| rtl8169_delete_timer(dev); |
| |
| netif_stop_queue(dev); |
| |
| napi_disable(&tp->napi); |
| |
| core_down: |
| spin_lock_irq(&tp->lock); |
| |
| rtl8169_asic_down(ioaddr); |
| |
| rtl8169_rx_missed(dev, ioaddr); |
| |
| spin_unlock_irq(&tp->lock); |
| |
| synchronize_irq(dev->irq); |
| |
| /* 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; |
| |
| /* update counters before going down */ |
| rtl8169_update_counters(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_06) { |
| u32 data = mc_filter[0]; |
| |
| mc_filter[0] = swab32(mc_filter[1]); |
| mc_filter[1] = swab32(data); |
| } |
| |
| 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); |
| rtl8169_rx_missed(dev, ioaddr); |
| spin_unlock_irqrestore(&tp->lock, flags); |
| } |
| |
| return &dev->stats; |
| } |
| |
| static void rtl8169_net_suspend(struct net_device *dev) |
| { |
| if (!netif_running(dev)) |
| return; |
| |
| netif_device_detach(dev); |
| netif_stop_queue(dev); |
| } |
| |
| #ifdef CONFIG_PM |
| |
| static int rtl8169_suspend(struct device *device) |
| { |
| struct pci_dev *pdev = to_pci_dev(device); |
| struct net_device *dev = pci_get_drvdata(pdev); |
| |
| rtl8169_net_suspend(dev); |
| |
| return 0; |
| } |
| |
| static int rtl8169_resume(struct device *device) |
| { |
| struct pci_dev *pdev = to_pci_dev(device); |
| struct net_device *dev = pci_get_drvdata(pdev); |
| |
| if (!netif_running(dev)) |
| goto out; |
| |
| netif_device_attach(dev); |
| |
| rtl8169_schedule_work(dev, rtl8169_reset_task); |
| out: |
| return 0; |
| } |
| |
| static struct dev_pm_ops rtl8169_pm_ops = { |
| .suspend = rtl8169_suspend, |
| .resume = rtl8169_resume, |
| .freeze = rtl8169_suspend, |
| .thaw = rtl8169_resume, |
| .poweroff = rtl8169_suspend, |
| .restore = rtl8169_resume, |
| }; |
| |
| #define RTL8169_PM_OPS (&rtl8169_pm_ops) |
| |
| #else /* !CONFIG_PM */ |
| |
| #define RTL8169_PM_OPS NULL |
| |
| #endif /* !CONFIG_PM */ |
| |
| static void rtl_shutdown(struct pci_dev *pdev) |
| { |
| struct net_device *dev = pci_get_drvdata(pdev); |
| struct rtl8169_private *tp = netdev_priv(dev); |
| void __iomem *ioaddr = tp->mmio_addr; |
| |
| rtl8169_net_suspend(dev); |
| |
| spin_lock_irq(&tp->lock); |
| |
| rtl8169_asic_down(ioaddr); |
| |
| spin_unlock_irq(&tp->lock); |
| |
| if (system_state == SYSTEM_POWER_OFF) { |
| /* WoL fails with some 8168 when the receiver is disabled. */ |
| if (tp->features & RTL_FEATURE_WOL) { |
| pci_clear_master(pdev); |
| |
| RTL_W8(ChipCmd, CmdRxEnb); |
| /* PCI commit */ |
| RTL_R8(ChipCmd); |
| } |
| |
| pci_wake_from_d3(pdev, true); |
| pci_set_power_state(pdev, PCI_D3hot); |
| } |
| } |
| |
| static struct pci_driver rtl8169_pci_driver = { |
| .name = MODULENAME, |
| .id_table = rtl8169_pci_tbl, |
| .probe = rtl8169_init_one, |
| .remove = __devexit_p(rtl8169_remove_one), |
| .shutdown = rtl_shutdown, |
| .driver.pm = RTL8169_PM_OPS, |
| }; |
| |
| 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); |