--- a/NEWS Fri Jun 19 11:48:42 2009 +0000
+++ b/NEWS Fri Jun 19 11:54:46 2009 +0000
@@ -11,6 +11,7 @@
* Fixed seg_size parameter when processing an CoE Upload Segment Response.
* Added octet_string as an SDO data type.
* Minor: Fixed datagram clean up.
+* Added r8169 driver for kernel 2.6.24.
Changes in version 1.4.0:
--- a/configure.ac Fri Jun 19 11:48:42 2009 +0000
+++ b/configure.ac Fri Jun 19 11:54:46 2009 +0000
@@ -184,6 +184,61 @@
AC_SUBST(KERNEL_E1000,[$kernele1000])
#------------------------------------------------------------------------------
+# r8169 driver
+#------------------------------------------------------------------------------
+
+AC_ARG_ENABLE([r8169],
+ AS_HELP_STRING([--enable-r8169],
+ [Enable r8169 driver]),
+ [
+ case "${enableval}" in
+ yes) enable_r8169=1
+ ;;
+ no) enable_r8169=0
+ ;;
+ *) AC_MSG_ERROR([Invalid value for --enable-r8169])
+ ;;
+ esac
+ ],
+ [enable_r8169=0] # disabled by default
+)
+
+AM_CONDITIONAL(ENABLE_R8169, test "x$enable_r8169" = "x1")
+AC_SUBST(ENABLE_R8169,[$enable_r8169])
+
+AC_ARG_WITH([r8169-kernel],
+ AC_HELP_STRING(
+ [--with-r8169-kernel=<X.Y.Z>],
+ [r8169 kernel (only if differing)]
+ ),
+ [
+ kernel_r8169=[$withval]
+ ],
+ [
+ kernel_r8169=$linuxversion
+ ]
+)
+
+if test "x${enable_r8169}" = "x1"; then
+ AC_MSG_CHECKING([for kernel for r8169 driver])
+
+ kernels=`ls -1 ${srcdir}/devices/ | grep -oE "^r8169-.*-" | cut -d "-" -f 2 | uniq`
+ found=0
+ for k in $kernels; do
+ if test "$kernel_r8169" = "$k"; then
+ found=1
+ fi
+ done
+ if test $found -ne 1; then
+ AC_MSG_ERROR([kernel $kernel_r8169 not available for r8169 driver!])
+ fi
+
+ AC_MSG_RESULT([$kernel_r8169])
+fi
+
+AC_SUBST(KERNEL_R8169,[$kernel_r8169])
+
+#------------------------------------------------------------------------------
# RTAI path (optional)
#------------------------------------------------------------------------------
--- a/devices/Kbuild.in Fri Jun 19 11:48:42 2009 +0000
+++ b/devices/Kbuild.in Fri Jun 19 11:54:46 2009 +0000
@@ -43,4 +43,11 @@
obj-m += e1000/
endif
+ifeq (@ENABLE_R8169@,1)
+ EC_R8169_OBJ := r8169-@KERNEL_R8169@-ethercat.o
+ obj-m += ec_r8169.o
+ ec_r8169-objs := $(EC_R8169_OBJ)
+ CFLAGS_$(EC_R8169_OBJ) = -DSVNREV=$(REV)
+endif
+
#------------------------------------------------------------------------------
--- a/devices/Makefile.am Fri Jun 19 11:48:42 2009 +0000
+++ b/devices/Makefile.am Fri Jun 19 11:54:46 2009 +0000
@@ -60,6 +60,9 @@
if ENABLE_E1000
$(MAKE) -C e1000 modules_install
endif
+if ENABLE_R8169
+ cp $(srcdir)/ec_r8169.ko $(DESTDIR)$(LINUX_MOD_PATH)
+endif
clean-local:
$(MAKE) -C "$(LINUX_SOURCE_DIR)" M="@abs_srcdir@" clean
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/devices/r8169-2.6.24-ethercat.c Fri Jun 19 11:54:46 2009 +0000
@@ -0,0 +1,3314 @@
+/*
+ * 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.
+ *
+ * vim: noexpandtab
+ */
+
+#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>
+
+#include "../globals.h"
+#include "ecdev.h"
+
+#ifdef CONFIG_R8169_NAPI
+#define NAPI_SUFFIX "-NAPI"
+#else
+#define NAPI_SUFFIX ""
+#endif
+
+#define RTL8169_VERSION "2.2LK" NAPI_SUFFIX
+#define MODULENAME "ec_r8169"
+#define PFX MODULENAME ": "
+
+#ifdef RTL8169_DEBUG
+#define assert(expr) \
+ if (!(expr)) { \
+ printk( "Assertion failed! %s,%s,%s,line=%d\n", \
+ #expr,__FILE__,__FUNCTION__,__LINE__); \
+ }
+#define dprintk(fmt, args...) \
+ do { printk(KERN_DEBUG PFX fmt, ## args); } while (0)
+#else
+#define assert(expr) do {} while (0)
+#define dprintk(fmt, args...) do {} while (0)
+#endif /* RTL8169_DEBUG */
+
+#define R8169_MSG_DEFAULT \
+ (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_IFUP | NETIF_MSG_IFDOWN)
+
+#define TX_BUFFS_AVAIL(tp) \
+ (tp->dirty_tx + NUM_TX_DESC - tp->cur_tx - 1)
+
+#ifdef CONFIG_R8169_NAPI
+#define rtl8169_rx_skb netif_receive_skb
+#define rtl8169_rx_hwaccel_skb vlan_hwaccel_receive_skb
+#define rtl8169_rx_quota(count, quota) min(count, quota)
+#else
+#define rtl8169_rx_skb netif_rx
+#define rtl8169_rx_hwaccel_skb vlan_hwaccel_rx
+#define rtl8169_rx_quota(count, quota) count
+#endif
+
+/* Maximum events (Rx packets, etc.) to handle at each interrupt. */
+static const int max_interrupt_work = 20;
+
+/* Maximum number of multicast addresses to filter (vs. Rx-all-multicast).
+ The RTL chips use a 64 element hash table based on the Ethernet CRC. */
+static const int multicast_filter_limit = 32;
+
+/* MAC address length */
+#define MAC_ADDR_LEN 6
+
+#define RX_FIFO_THRESH 7 /* 7 means NO threshold, Rx buffer level before first PCI xfer. */
+#define RX_DMA_BURST 6 /* Maximum PCI burst, '6' is 1024 */
+#define TX_DMA_BURST 6 /* Maximum PCI burst, '6' is 1024 */
+#define EarlyTxThld 0x3F /* 0x3F means NO early transmit */
+#define RxPacketMaxSize 0x3FE8 /* 16K - 1 - ETH_HLEN - VLAN - CRC... */
+#define SafeMtu 0x1c20 /* ... actually life sucks beyond ~7k */
+#define InterFrameGap 0x03 /* 3 means InterFrameGap = the shortest one */
+
+#define R8169_REGS_SIZE 256
+#define R8169_NAPI_WEIGHT 64
+#define NUM_TX_DESC 64 /* Number of Tx descriptor registers */
+#define NUM_RX_DESC 256 /* Number of Rx descriptor registers */
+#define RX_BUF_SIZE 1536 /* Rx Buffer size */
+#define R8169_TX_RING_BYTES (NUM_TX_DESC * sizeof(struct TxDesc))
+#define R8169_RX_RING_BYTES (NUM_RX_DESC * sizeof(struct RxDesc))
+
+#define RTL8169_TX_TIMEOUT (6*HZ)
+#define RTL8169_PHY_TIMEOUT (10*HZ)
+
+/* write/read MMIO register */
+#define RTL_W8(reg, val8) writeb ((val8), ioaddr + (reg))
+#define RTL_W16(reg, val16) writew ((val16), ioaddr + (reg))
+#define RTL_W32(reg, val32) writel ((val32), ioaddr + (reg))
+#define RTL_R8(reg) readb (ioaddr + (reg))
+#define RTL_R16(reg) readw (ioaddr + (reg))
+#define RTL_R32(reg) ((unsigned long) readl (ioaddr + (reg)))
+
+enum mac_version {
+ RTL_GIGA_MAC_VER_01 = 0x01, // 8169
+ RTL_GIGA_MAC_VER_02 = 0x02, // 8169S
+ RTL_GIGA_MAC_VER_03 = 0x03, // 8110S
+ RTL_GIGA_MAC_VER_04 = 0x04, // 8169SB
+ RTL_GIGA_MAC_VER_05 = 0x05, // 8110SCd
+ RTL_GIGA_MAC_VER_06 = 0x06, // 8110SCe
+ RTL_GIGA_MAC_VER_11 = 0x0b, // 8168Bb
+ RTL_GIGA_MAC_VER_12 = 0x0c, // 8168Be
+ RTL_GIGA_MAC_VER_13 = 0x0d, // 8101Eb
+ RTL_GIGA_MAC_VER_14 = 0x0e, // 8101 ?
+ RTL_GIGA_MAC_VER_15 = 0x0f, // 8101 ?
+ RTL_GIGA_MAC_VER_16 = 0x11, // 8101Ec
+ RTL_GIGA_MAC_VER_17 = 0x10, // 8168Bf
+ RTL_GIGA_MAC_VER_18 = 0x12, // 8168CP
+ RTL_GIGA_MAC_VER_19 = 0x13, // 8168C
+ RTL_GIGA_MAC_VER_20 = 0x14 // 8168C
+};
+
+#define _R(NAME,MAC,MASK) \
+ { .name = NAME, .mac_version = MAC, .RxConfigMask = MASK }
+
+static const struct {
+ const char *name;
+ u8 mac_version;
+ u32 RxConfigMask; /* Clears the bits supported by this chip */
+} rtl_chip_info[] = {
+ _R("RTL8169", RTL_GIGA_MAC_VER_01, 0xff7e1880), // 8169
+ _R("RTL8169s", RTL_GIGA_MAC_VER_02, 0xff7e1880), // 8169S
+ _R("RTL8110s", RTL_GIGA_MAC_VER_03, 0xff7e1880), // 8110S
+ _R("RTL8169sb/8110sb", RTL_GIGA_MAC_VER_04, 0xff7e1880), // 8169SB
+ _R("RTL8169sc/8110sc", RTL_GIGA_MAC_VER_05, 0xff7e1880), // 8110SCd
+ _R("RTL8169sc/8110sc", RTL_GIGA_MAC_VER_06, 0xff7e1880), // 8110SCe
+ _R("RTL8168b/8111b", RTL_GIGA_MAC_VER_11, 0xff7e1880), // PCI-E
+ _R("RTL8168b/8111b", RTL_GIGA_MAC_VER_12, 0xff7e1880), // PCI-E
+ _R("RTL8101e", RTL_GIGA_MAC_VER_13, 0xff7e1880), // PCI-E 8139
+ _R("RTL8100e", RTL_GIGA_MAC_VER_14, 0xff7e1880), // PCI-E 8139
+ _R("RTL8100e", RTL_GIGA_MAC_VER_15, 0xff7e1880), // PCI-E 8139
+ _R("RTL8168b/8111b", RTL_GIGA_MAC_VER_17, 0xff7e1880), // PCI-E
+ _R("RTL8101e", RTL_GIGA_MAC_VER_16, 0xff7e1880), // PCI-E
+ _R("RTL8168cp/8111cp", RTL_GIGA_MAC_VER_18, 0xff7e1880), // PCI-E
+ _R("RTL8168c/8111c", RTL_GIGA_MAC_VER_19, 0xff7e1880), // PCI-E
+ _R("RTL8168c/8111c", RTL_GIGA_MAC_VER_20, 0xff7e1880) // PCI-E
+};
+#undef _R
+
+enum cfg_version {
+ RTL_CFG_0 = 0x00,
+ RTL_CFG_1,
+ RTL_CFG_2
+};
+
+static void rtl_hw_start_8169(struct net_device *);
+static void rtl_hw_start_8168(struct net_device *);
+static void rtl_hw_start_8101(struct net_device *);
+
+static struct pci_device_id rtl8169_pci_tbl[] = {
+ { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8129), 0, 0, RTL_CFG_0 },
+ { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8136), 0, 0, RTL_CFG_2 },
+ { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8167), 0, 0, RTL_CFG_0 },
+ { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8168), 0, 0, RTL_CFG_1 },
+ { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8169), 0, 0, RTL_CFG_0 },
+ { PCI_DEVICE(PCI_VENDOR_ID_DLINK, 0x4300), 0, 0, RTL_CFG_0 },
+ { PCI_DEVICE(PCI_VENDOR_ID_AT, 0xc107), 0, 0, RTL_CFG_0 },
+ { PCI_DEVICE(0x16ec, 0x0116), 0, 0, RTL_CFG_0 },
+ { PCI_VENDOR_ID_LINKSYS, 0x1032,
+ PCI_ANY_ID, 0x0024, 0, 0, RTL_CFG_0 },
+ { 0x0001, 0x8168,
+ PCI_ANY_ID, 0x2410, 0, 0, RTL_CFG_2 },
+ {0,},
+};
+
+/* prevent driver from being loaded automatically */
+//MODULE_DEVICE_TABLE(pci, rtl8169_pci_tbl);
+
+static int rx_copybreak = 200;
+static int use_dac;
+static struct {
+ u32 msg_enable;
+} debug = { -1 };
+
+enum rtl_registers {
+ MAC0 = 0, /* Ethernet hardware address. */
+ MAC4 = 4,
+ MAR0 = 8, /* Multicast filter. */
+ CounterAddrLow = 0x10,
+ CounterAddrHigh = 0x14,
+ TxDescStartAddrLow = 0x20,
+ TxDescStartAddrHigh = 0x24,
+ TxHDescStartAddrLow = 0x28,
+ TxHDescStartAddrHigh = 0x2c,
+ FLASH = 0x30,
+ ERSR = 0x36,
+ ChipCmd = 0x37,
+ TxPoll = 0x38,
+ IntrMask = 0x3c,
+ IntrStatus = 0x3e,
+ TxConfig = 0x40,
+ RxConfig = 0x44,
+ RxMissed = 0x4c,
+ Cfg9346 = 0x50,
+ Config0 = 0x51,
+ Config1 = 0x52,
+ Config2 = 0x53,
+ Config3 = 0x54,
+ Config4 = 0x55,
+ Config5 = 0x56,
+ MultiIntr = 0x5c,
+ PHYAR = 0x60,
+ TBICSR = 0x64,
+ TBI_ANAR = 0x68,
+ TBI_LPAR = 0x6a,
+ PHYstatus = 0x6c,
+ RxMaxSize = 0xda,
+ CPlusCmd = 0xe0,
+ IntrMitigate = 0xe2,
+ RxDescAddrLow = 0xe4,
+ RxDescAddrHigh = 0xe8,
+ EarlyTxThres = 0xec,
+ FuncEvent = 0xf0,
+ FuncEventMask = 0xf4,
+ FuncPresetState = 0xf8,
+ FuncForceEvent = 0xfc,
+};
+
+enum rtl_register_content {
+ /* InterruptStatusBits */
+ SYSErr = 0x8000,
+ PCSTimeout = 0x4000,
+ SWInt = 0x0100,
+ TxDescUnavail = 0x0080,
+ RxFIFOOver = 0x0040,
+ LinkChg = 0x0020,
+ RxOverflow = 0x0010,
+ TxErr = 0x0008,
+ TxOK = 0x0004,
+ RxErr = 0x0002,
+ RxOK = 0x0001,
+
+ /* RxStatusDesc */
+ RxFOVF = (1 << 23),
+ RxRWT = (1 << 22),
+ RxRES = (1 << 21),
+ RxRUNT = (1 << 20),
+ RxCRC = (1 << 19),
+
+ /* ChipCmdBits */
+ CmdReset = 0x10,
+ CmdRxEnb = 0x08,
+ CmdTxEnb = 0x04,
+ RxBufEmpty = 0x01,
+
+ /* TXPoll register p.5 */
+ HPQ = 0x80, /* Poll cmd on the high prio queue */
+ NPQ = 0x40, /* Poll cmd on the low prio queue */
+ FSWInt = 0x01, /* Forced software interrupt */
+
+ /* Cfg9346Bits */
+ Cfg9346_Lock = 0x00,
+ Cfg9346_Unlock = 0xc0,
+
+ /* rx_mode_bits */
+ AcceptErr = 0x20,
+ AcceptRunt = 0x10,
+ AcceptBroadcast = 0x08,
+ AcceptMulticast = 0x04,
+ AcceptMyPhys = 0x02,
+ AcceptAllPhys = 0x01,
+
+ /* RxConfigBits */
+ RxCfgFIFOShift = 13,
+ RxCfgDMAShift = 8,
+
+ /* TxConfigBits */
+ TxInterFrameGapShift = 24,
+ TxDMAShift = 8, /* DMA burst value (0-7) is shift this many bits */
+
+ /* Config1 register p.24 */
+ MSIEnable = (1 << 5), /* Enable Message Signaled Interrupt */
+ PMEnable = (1 << 0), /* Power Management Enable */
+
+ /* Config2 register p. 25 */
+ PCI_Clock_66MHz = 0x01,
+ PCI_Clock_33MHz = 0x00,
+
+ /* Config3 register p.25 */
+ MagicPacket = (1 << 5), /* Wake up when receives a Magic Packet */
+ LinkUp = (1 << 4), /* Wake up when the cable connection is re-established */
+
+ /* Config5 register p.27 */
+ BWF = (1 << 6), /* Accept Broadcast wakeup frame */
+ MWF = (1 << 5), /* Accept Multicast wakeup frame */
+ UWF = (1 << 4), /* Accept Unicast wakeup frame */
+ LanWake = (1 << 1), /* LanWake enable/disable */
+ PMEStatus = (1 << 0), /* PME status can be reset by PCI RST# */
+
+ /* TBICSR p.28 */
+ TBIReset = 0x80000000,
+ TBILoopback = 0x40000000,
+ TBINwEnable = 0x20000000,
+ TBINwRestart = 0x10000000,
+ TBILinkOk = 0x02000000,
+ TBINwComplete = 0x01000000,
+
+ /* CPlusCmd p.31 */
+ PktCntrDisable = (1 << 7), // 8168
+ RxVlan = (1 << 6),
+ RxChkSum = (1 << 5),
+ PCIDAC = (1 << 4),
+ PCIMulRW = (1 << 3),
+ INTT_0 = 0x0000, // 8168
+ INTT_1 = 0x0001, // 8168
+ INTT_2 = 0x0002, // 8168
+ INTT_3 = 0x0003, // 8168
+
+ /* rtl8169_PHYstatus */
+ TBI_Enable = 0x80,
+ TxFlowCtrl = 0x40,
+ RxFlowCtrl = 0x20,
+ _1000bpsF = 0x10,
+ _100bps = 0x08,
+ _10bps = 0x04,
+ LinkStatus = 0x02,
+ FullDup = 0x01,
+
+ /* _TBICSRBit */
+ TBILinkOK = 0x02000000,
+
+ /* DumpCounterCommand */
+ CounterDump = 0x8,
+};
+
+enum desc_status_bit {
+ DescOwn = (1 << 31), /* Descriptor is owned by NIC */
+ RingEnd = (1 << 30), /* End of descriptor ring */
+ FirstFrag = (1 << 29), /* First segment of a packet */
+ LastFrag = (1 << 28), /* Final segment of a packet */
+
+ /* Tx private */
+ LargeSend = (1 << 27), /* TCP Large Send Offload (TSO) */
+ MSSShift = 16, /* MSS value position */
+ MSSMask = 0xfff, /* MSS value + LargeSend bit: 12 bits */
+ IPCS = (1 << 18), /* Calculate IP checksum */
+ UDPCS = (1 << 17), /* Calculate UDP/IP checksum */
+ TCPCS = (1 << 16), /* Calculate TCP/IP checksum */
+ TxVlanTag = (1 << 17), /* Add VLAN tag */
+
+ /* Rx private */
+ PID1 = (1 << 18), /* Protocol ID bit 1/2 */
+ PID0 = (1 << 17), /* Protocol ID bit 2/2 */
+
+#define RxProtoUDP (PID1)
+#define RxProtoTCP (PID0)
+#define RxProtoIP (PID1 | PID0)
+#define RxProtoMask RxProtoIP
+
+ IPFail = (1 << 16), /* IP checksum failed */
+ UDPFail = (1 << 15), /* UDP/IP checksum failed */
+ TCPFail = (1 << 14), /* TCP/IP checksum failed */
+ RxVlanTag = (1 << 16), /* VLAN tag available */
+};
+
+#define RsvdMask 0x3fffc000
+
+struct TxDesc {
+ __le32 opts1;
+ __le32 opts2;
+ __le64 addr;
+};
+
+struct RxDesc {
+ __le32 opts1;
+ __le32 opts2;
+ __le64 addr;
+};
+
+struct ring_info {
+ struct sk_buff *skb;
+ u32 len;
+ u8 __pad[sizeof(void *) - sizeof(u32)];
+};
+
+enum features {
+ RTL_FEATURE_WOL = (1 << 0),
+ RTL_FEATURE_MSI = (1 << 1),
+};
+
+struct rtl8169_private {
+ void __iomem *mmio_addr; /* memory map physical address */
+ struct pci_dev *pci_dev; /* Index of PCI device */
+ struct net_device *dev;
+#ifdef CONFIG_R8169_NAPI
+ struct napi_struct napi;
+#endif
+ spinlock_t lock; /* spin lock flag */
+ u32 msg_enable;
+ int chipset;
+ int mac_version;
+ u32 cur_rx; /* Index into the Rx descriptor buffer of next Rx pkt. */
+ u32 cur_tx; /* Index into the Tx descriptor buffer of next Rx pkt. */
+ u32 dirty_rx;
+ u32 dirty_tx;
+ struct TxDesc *TxDescArray; /* 256-aligned Tx descriptor ring */
+ struct RxDesc *RxDescArray; /* 256-aligned Rx descriptor ring */
+ dma_addr_t TxPhyAddr;
+ dma_addr_t RxPhyAddr;
+ struct sk_buff *Rx_skbuff[NUM_RX_DESC]; /* Rx data buffers */
+ struct ring_info tx_skb[NUM_TX_DESC]; /* Tx data buffers */
+ unsigned align;
+ unsigned rx_buf_sz;
+ struct timer_list timer;
+ u16 cp_cmd;
+ u16 intr_event;
+ u16 napi_event;
+ u16 intr_mask;
+ int phy_auto_nego_reg;
+ int phy_1000_ctrl_reg;
+#ifdef CONFIG_R8169_VLAN
+ struct vlan_group *vlgrp;
+#endif
+ int (*set_speed)(struct net_device *, u8 autoneg, u16 speed, u8 duplex);
+ void (*get_settings)(struct net_device *, struct ethtool_cmd *);
+ void (*phy_reset_enable)(void __iomem *);
+ void (*hw_start)(struct net_device *);
+ unsigned int (*phy_reset_pending)(void __iomem *);
+ unsigned int (*link_ok)(void __iomem *);
+ struct delayed_work task;
+ unsigned features;
+
+ ec_device_t *ecdev;
+ unsigned long ec_watchdog_jiffies;
+};
+
+MODULE_AUTHOR("Florian Pose <fp@igh-essen.com>");
+MODULE_DESCRIPTION("EtherCAT-capable 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(EC_MASTER_VERSION);
+
+static int rtl8169_open(struct net_device *dev);
+static int rtl8169_start_xmit(struct sk_buff *skb, struct net_device *dev);
+static irqreturn_t rtl8169_interrupt(int irq, void *dev_instance);
+static int rtl8169_init_ring(struct net_device *dev);
+static void rtl_hw_start(struct net_device *dev);
+static int rtl8169_close(struct net_device *dev);
+static void rtl_set_rx_mode(struct net_device *dev);
+static void rtl8169_tx_timeout(struct net_device *dev);
+static struct net_device_stats *rtl8169_get_stats(struct net_device *dev);
+static int rtl8169_rx_interrupt(struct net_device *, struct rtl8169_private *,
+ void __iomem *, u32 budget);
+static int rtl8169_change_mtu(struct net_device *dev, int new_mtu);
+static void rtl8169_down(struct net_device *dev);
+static void rtl8169_rx_clear(struct rtl8169_private *tp);
+
+#ifdef CONFIG_R8169_NAPI
+static int rtl8169_poll(struct napi_struct *napi, int budget);
+#endif
+
+static const unsigned int rtl8169_rx_config =
+ (RX_FIFO_THRESH << RxCfgFIFOShift) | (RX_DMA_BURST << RxCfgDMAShift);
+
+static void mdio_write(void __iomem *ioaddr, int reg_addr, int value)
+{
+ int i;
+
+ RTL_W32(PHYAR, 0x80000000 | (reg_addr & 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 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;
+
+ if (tp->ecdev) {
+ ecdev_set_link(tp->ecdev, tp->link_ok(ioaddr) ? 1 : 0);
+ } else {
+ spin_lock_irqsave(&tp->lock, flags);
+ if (tp->link_ok(ioaddr)) {
+ netif_carrier_on(dev);
+ if (netif_msg_ifup(tp))
+ printk(KERN_INFO PFX "%s: link up\n", dev->name);
+ } else {
+ if (netif_msg_ifdown(tp))
+ printk(KERN_INFO PFX "%s: link down\n", dev->name);
+ netif_carrier_off(dev);
+ }
+ spin_unlock_irqrestore(&tp->lock, flags);
+ }
+}
+
+static void rtl8169_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->mmio_addr;
+ u8 options;
+
+ wol->wolopts = 0;
+
+#define WAKE_ANY (WAKE_PHY | WAKE_MAGIC | WAKE_UCAST | WAKE_BCAST | WAKE_MCAST)
+ wol->supported = WAKE_ANY;
+
+ spin_lock_irq(&tp->lock);
+
+ options = RTL_R8(Config1);
+ if (!(options & PMEnable))
+ goto out_unlock;
+
+ options = RTL_R8(Config3);
+ if (options & LinkUp)
+ wol->wolopts |= WAKE_PHY;
+ if (options & MagicPacket)
+ wol->wolopts |= WAKE_MAGIC;
+
+ options = RTL_R8(Config5);
+ if (options & UWF)
+ wol->wolopts |= WAKE_UCAST;
+ if (options & BWF)
+ wol->wolopts |= WAKE_BCAST;
+ if (options & MWF)
+ wol->wolopts |= WAKE_MCAST;
+
+out_unlock:
+ spin_unlock_irq(&tp->lock);
+}
+
+static int rtl8169_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->mmio_addr;
+ unsigned int i;
+ static struct {
+ u32 opt;
+ u16 reg;
+ u8 mask;
+ } cfg[] = {
+ { WAKE_ANY, Config1, PMEnable },
+ { WAKE_PHY, Config3, LinkUp },
+ { WAKE_MAGIC, Config3, MagicPacket },
+ { WAKE_UCAST, Config5, UWF },
+ { WAKE_BCAST, Config5, BWF },
+ { WAKE_MCAST, Config5, MWF },
+ { WAKE_ANY, Config5, LanWake }
+ };
+
+ spin_lock_irq(&tp->lock);
+
+ RTL_W8(Cfg9346, Cfg9346_Unlock);
+
+ for (i = 0; i < ARRAY_SIZE(cfg); i++) {
+ u8 options = RTL_R8(cfg[i].reg) & ~cfg[i].mask;
+ if (wol->wolopts & cfg[i].opt)
+ options |= cfg[i].mask;
+ RTL_W8(cfg[i].reg, options);
+ }
+
+ RTL_W8(Cfg9346, Cfg9346_Lock);
+
+ if (wol->wolopts)
+ tp->features |= RTL_FEATURE_WOL;
+ else
+ tp->features &= ~RTL_FEATURE_WOL;
+
+ spin_unlock_irq(&tp->lock);
+
+ return 0;
+}
+
+static void rtl8169_get_drvinfo(struct net_device *dev,
+ struct ethtool_drvinfo *info)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+
+ strcpy(info->driver, MODULENAME);
+ strcpy(info->version, RTL8169_VERSION);
+ strcpy(info->bus_info, pci_name(tp->pci_dev));
+}
+
+static int rtl8169_get_regs_len(struct net_device *dev)
+{
+ return R8169_REGS_SIZE;
+}
+
+static int rtl8169_set_speed_tbi(struct net_device *dev,
+ u8 autoneg, u16 speed, u8 duplex)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->mmio_addr;
+ int ret = 0;
+ u32 reg;
+
+ reg = RTL_R32(TBICSR);
+ if ((autoneg == AUTONEG_DISABLE) && (speed == SPEED_1000) &&
+ (duplex == DUPLEX_FULL)) {
+ RTL_W32(TBICSR, reg & ~(TBINwEnable | TBINwRestart));
+ } else if (autoneg == AUTONEG_ENABLE)
+ RTL_W32(TBICSR, reg | TBINwEnable | TBINwRestart);
+ else {
+ if (netif_msg_link(tp)) {
+ printk(KERN_WARNING "%s: "
+ "incorrect speed setting refused in TBI mode\n",
+ dev->name);
+ }
+ ret = -EOPNOTSUPP;
+ }
+
+ return ret;
+}
+
+static int rtl8169_set_speed_xmii(struct net_device *dev,
+ u8 autoneg, u16 speed, u8 duplex)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->mmio_addr;
+ int auto_nego, giga_ctrl;
+
+ auto_nego = mdio_read(ioaddr, MII_ADVERTISE);
+ auto_nego &= ~(ADVERTISE_10HALF | ADVERTISE_10FULL |
+ ADVERTISE_100HALF | ADVERTISE_100FULL);
+ giga_ctrl = mdio_read(ioaddr, MII_CTRL1000);
+ giga_ctrl &= ~(ADVERTISE_1000FULL | ADVERTISE_1000HALF);
+
+ if (autoneg == AUTONEG_ENABLE) {
+ auto_nego |= (ADVERTISE_10HALF | ADVERTISE_10FULL |
+ ADVERTISE_100HALF | ADVERTISE_100FULL);
+ giga_ctrl |= ADVERTISE_1000FULL | ADVERTISE_1000HALF;
+ } else {
+ if (speed == SPEED_10)
+ auto_nego |= ADVERTISE_10HALF | ADVERTISE_10FULL;
+ else if (speed == SPEED_100)
+ auto_nego |= ADVERTISE_100HALF | ADVERTISE_100FULL;
+ else if (speed == SPEED_1000)
+ giga_ctrl |= ADVERTISE_1000FULL | ADVERTISE_1000HALF;
+
+ if (duplex == DUPLEX_HALF)
+ auto_nego &= ~(ADVERTISE_10FULL | ADVERTISE_100FULL);
+
+ if (duplex == DUPLEX_FULL)
+ auto_nego &= ~(ADVERTISE_10HALF | ADVERTISE_100HALF);
+
+ /* This tweak comes straight from Realtek's driver. */
+ if ((speed == SPEED_100) && (duplex == DUPLEX_HALF) &&
+ ((tp->mac_version == RTL_GIGA_MAC_VER_13) ||
+ (tp->mac_version == RTL_GIGA_MAC_VER_16))) {
+ auto_nego = ADVERTISE_100HALF | ADVERTISE_CSMA;
+ }
+ }
+
+ /* The 8100e/8101e do Fast Ethernet only. */
+ if ((tp->mac_version == RTL_GIGA_MAC_VER_13) ||
+ (tp->mac_version == RTL_GIGA_MAC_VER_14) ||
+ (tp->mac_version == RTL_GIGA_MAC_VER_15) ||
+ (tp->mac_version == RTL_GIGA_MAC_VER_16)) {
+ if ((giga_ctrl & (ADVERTISE_1000FULL | ADVERTISE_1000HALF)) &&
+ netif_msg_link(tp)) {
+ printk(KERN_INFO "%s: PHY does not support 1000Mbps.\n",
+ dev->name);
+ }
+ giga_ctrl &= ~(ADVERTISE_1000FULL | ADVERTISE_1000HALF);
+ }
+
+ auto_nego |= ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM;
+
+ if ((tp->mac_version == RTL_GIGA_MAC_VER_12) ||
+ (tp->mac_version == RTL_GIGA_MAC_VER_17)) {
+ /* Vendor specific (0x1f) and reserved (0x0e) MII registers. */
+ mdio_write(ioaddr, 0x1f, 0x0000);
+ mdio_write(ioaddr, 0x0e, 0x0000);
+ }
+
+ tp->phy_auto_nego_reg = auto_nego;
+ tp->phy_1000_ctrl_reg = giga_ctrl;
+
+ mdio_write(ioaddr, MII_ADVERTISE, auto_nego);
+ mdio_write(ioaddr, MII_CTRL1000, giga_ctrl);
+ mdio_write(ioaddr, MII_BMCR, BMCR_ANENABLE | BMCR_ANRESTART);
+ return 0;
+}
+
+static int rtl8169_set_speed(struct net_device *dev,
+ u8 autoneg, u16 speed, u8 duplex)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ int ret;
+
+ ret = tp->set_speed(dev, autoneg, speed, duplex);
+
+ if (netif_running(dev) && (tp->phy_1000_ctrl_reg & ADVERTISE_1000FULL))
+ mod_timer(&tp->timer, jiffies + RTL8169_PHY_TIMEOUT);
+
+ return ret;
+}
+
+static int rtl8169_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ unsigned long flags;
+ int ret;
+
+ spin_lock_irqsave(&tp->lock, flags);
+ ret = rtl8169_set_speed(dev, cmd->autoneg, cmd->speed, cmd->duplex);
+ spin_unlock_irqrestore(&tp->lock, flags);
+
+ return ret;
+}
+
+static u32 rtl8169_get_rx_csum(struct net_device *dev)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+
+ return tp->cp_cmd & RxChkSum;
+}
+
+static int rtl8169_set_rx_csum(struct net_device *dev, u32 data)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->mmio_addr;
+ unsigned long flags;
+
+ spin_lock_irqsave(&tp->lock, flags);
+
+ if (data)
+ tp->cp_cmd |= RxChkSum;
+ else
+ tp->cp_cmd &= ~RxChkSum;
+
+ RTL_W16(CPlusCmd, tp->cp_cmd);
+ RTL_R16(CPlusCmd);
+
+ spin_unlock_irqrestore(&tp->lock, flags);
+
+ return 0;
+}
+
+#ifdef CONFIG_R8169_VLAN
+
+static inline u32 rtl8169_tx_vlan_tag(struct rtl8169_private *tp,
+ struct sk_buff *skb)
+{
+ return (tp->vlgrp && vlan_tx_tag_present(skb)) ?
+ TxVlanTag | swab16(vlan_tx_tag_get(skb)) : 0x00;
+}
+
+static void rtl8169_vlan_rx_register(struct net_device *dev,
+ struct vlan_group *grp)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->mmio_addr;
+ unsigned long flags;
+
+ spin_lock_irqsave(&tp->lock, flags);
+ tp->vlgrp = grp;
+ if (tp->vlgrp)
+ tp->cp_cmd |= RxVlan;
+ else
+ tp->cp_cmd &= ~RxVlan;
+ RTL_W16(CPlusCmd, tp->cp_cmd);
+ RTL_R16(CPlusCmd);
+ spin_unlock_irqrestore(&tp->lock, flags);
+}
+
+static int rtl8169_rx_vlan_skb(struct rtl8169_private *tp, struct RxDesc *desc,
+ struct sk_buff *skb)
+{
+ u32 opts2 = le32_to_cpu(desc->opts2);
+ int ret;
+
+ if (tp->vlgrp && (opts2 & RxVlanTag)) {
+ rtl8169_rx_hwaccel_skb(skb, tp->vlgrp, swab16(opts2 & 0xffff));
+ ret = 0;
+ } else
+ ret = -1;
+ desc->opts2 = 0;
+ return ret;
+}
+
+#else /* !CONFIG_R8169_VLAN */
+
+static inline u32 rtl8169_tx_vlan_tag(struct rtl8169_private *tp,
+ struct sk_buff *skb)
+{
+ return 0;
+}
+
+static int rtl8169_rx_vlan_skb(struct rtl8169_private *tp, struct RxDesc *desc,
+ struct sk_buff *skb)
+{
+ return -1;
+}
+
+#endif
+
+static void rtl8169_gset_tbi(struct net_device *dev, struct ethtool_cmd *cmd)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->mmio_addr;
+ u32 status;
+
+ cmd->supported =
+ SUPPORTED_1000baseT_Full | SUPPORTED_Autoneg | SUPPORTED_FIBRE;
+ cmd->port = PORT_FIBRE;
+ cmd->transceiver = XCVR_INTERNAL;
+
+ status = RTL_R32(TBICSR);
+ cmd->advertising = (status & TBINwEnable) ? ADVERTISED_Autoneg : 0;
+ cmd->autoneg = !!(status & TBINwEnable);
+
+ cmd->speed = SPEED_1000;
+ cmd->duplex = DUPLEX_FULL; /* Always set */
+}
+
+static void rtl8169_gset_xmii(struct net_device *dev, struct ethtool_cmd *cmd)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->mmio_addr;
+ u8 status;
+
+ cmd->supported = SUPPORTED_10baseT_Half |
+ SUPPORTED_10baseT_Full |
+ SUPPORTED_100baseT_Half |
+ SUPPORTED_100baseT_Full |
+ SUPPORTED_1000baseT_Full |
+ SUPPORTED_Autoneg |
+ SUPPORTED_TP;
+
+ cmd->autoneg = 1;
+ cmd->advertising = ADVERTISED_TP | ADVERTISED_Autoneg;
+
+ if (tp->phy_auto_nego_reg & ADVERTISE_10HALF)
+ cmd->advertising |= ADVERTISED_10baseT_Half;
+ if (tp->phy_auto_nego_reg & ADVERTISE_10FULL)
+ cmd->advertising |= ADVERTISED_10baseT_Full;
+ if (tp->phy_auto_nego_reg & ADVERTISE_100HALF)
+ cmd->advertising |= ADVERTISED_100baseT_Half;
+ if (tp->phy_auto_nego_reg & ADVERTISE_100FULL)
+ cmd->advertising |= ADVERTISED_100baseT_Full;
+ if (tp->phy_1000_ctrl_reg & ADVERTISE_1000FULL)
+ cmd->advertising |= ADVERTISED_1000baseT_Full;
+
+ status = RTL_R8(PHYstatus);
+
+ if (status & _1000bpsF)
+ cmd->speed = SPEED_1000;
+ else if (status & _100bps)
+ cmd->speed = SPEED_100;
+ else if (status & _10bps)
+ cmd->speed = SPEED_10;
+
+ if (status & TxFlowCtrl)
+ cmd->advertising |= ADVERTISED_Asym_Pause;
+ if (status & RxFlowCtrl)
+ cmd->advertising |= ADVERTISED_Pause;
+
+ cmd->duplex = ((status & _1000bpsF) || (status & FullDup)) ?
+ DUPLEX_FULL : DUPLEX_HALF;
+}
+
+static int rtl8169_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ unsigned long flags;
+
+ spin_lock_irqsave(&tp->lock, flags);
+
+ tp->get_settings(dev, cmd);
+
+ spin_unlock_irqrestore(&tp->lock, flags);
+ return 0;
+}
+
+static void rtl8169_get_regs(struct net_device *dev, struct ethtool_regs *regs,
+ void *p)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ unsigned long flags;
+
+ if (regs->len > R8169_REGS_SIZE)
+ regs->len = R8169_REGS_SIZE;
+
+ spin_lock_irqsave(&tp->lock, flags);
+ memcpy_fromio(p, tp->mmio_addr, regs->len);
+ spin_unlock_irqrestore(&tp->lock, flags);
+}
+
+static u32 rtl8169_get_msglevel(struct net_device *dev)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+
+ return tp->msg_enable;
+}
+
+static void rtl8169_set_msglevel(struct net_device *dev, u32 value)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+
+ tp->msg_enable = value;
+}
+
+static const char rtl8169_gstrings[][ETH_GSTRING_LEN] = {
+ "tx_packets",
+ "rx_packets",
+ "tx_errors",
+ "rx_errors",
+ "rx_missed",
+ "align_errors",
+ "tx_single_collisions",
+ "tx_multi_collisions",
+ "unicast",
+ "broadcast",
+ "multicast",
+ "tx_aborted",
+ "tx_underrun",
+};
+
+struct rtl8169_counters {
+ __le64 tx_packets;
+ __le64 rx_packets;
+ __le64 tx_errors;
+ __le32 rx_errors;
+ __le16 rx_missed;
+ __le16 align_errors;
+ __le32 tx_one_collision;
+ __le32 tx_multi_collision;
+ __le64 rx_unicast;
+ __le64 rx_broadcast;
+ __le32 rx_multicast;
+ __le16 tx_aborted;
+ __le16 tx_underun;
+};
+
+static int rtl8169_get_sset_count(struct net_device *dev, int sset)
+{
+ switch (sset) {
+ case ETH_SS_STATS:
+ return ARRAY_SIZE(rtl8169_gstrings);
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+static void rtl8169_get_ethtool_stats(struct net_device *dev,
+ struct ethtool_stats *stats, u64 *data)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->mmio_addr;
+ struct rtl8169_counters *counters;
+ dma_addr_t paddr;
+ u32 cmd;
+
+ ASSERT_RTNL();
+
+ counters = pci_alloc_consistent(tp->pci_dev, sizeof(*counters), &paddr);
+ if (!counters)
+ return;
+
+ RTL_W32(CounterAddrHigh, (u64)paddr >> 32);
+ cmd = (u64)paddr & DMA_32BIT_MASK;
+ RTL_W32(CounterAddrLow, cmd);
+ RTL_W32(CounterAddrLow, cmd | CounterDump);
+
+ while (RTL_R32(CounterAddrLow) & CounterDump) {
+ if (msleep_interruptible(1))
+ break;
+ }
+
+ RTL_W32(CounterAddrLow, 0);
+ RTL_W32(CounterAddrHigh, 0);
+
+ data[0] = le64_to_cpu(counters->tx_packets);
+ data[1] = le64_to_cpu(counters->rx_packets);
+ data[2] = le64_to_cpu(counters->tx_errors);
+ data[3] = le32_to_cpu(counters->rx_errors);
+ data[4] = le16_to_cpu(counters->rx_missed);
+ data[5] = le16_to_cpu(counters->align_errors);
+ data[6] = le32_to_cpu(counters->tx_one_collision);
+ data[7] = le32_to_cpu(counters->tx_multi_collision);
+ data[8] = le64_to_cpu(counters->rx_unicast);
+ data[9] = le64_to_cpu(counters->rx_broadcast);
+ data[10] = le32_to_cpu(counters->rx_multicast);
+ data[11] = le16_to_cpu(counters->tx_aborted);
+ data[12] = le16_to_cpu(counters->tx_underun);
+
+ pci_free_consistent(tp->pci_dev, sizeof(*counters), counters, paddr);
+}
+
+static void rtl8169_get_strings(struct net_device *dev, u32 stringset, u8 *data)
+{
+ switch(stringset) {
+ case ETH_SS_STATS:
+ memcpy(data, *rtl8169_gstrings, sizeof(rtl8169_gstrings));
+ break;
+ }
+}
+
+static const struct ethtool_ops rtl8169_ethtool_ops = {
+ .get_drvinfo = rtl8169_get_drvinfo,
+ .get_regs_len = rtl8169_get_regs_len,
+ .get_link = ethtool_op_get_link,
+ .get_settings = rtl8169_get_settings,
+ .set_settings = rtl8169_set_settings,
+ .get_msglevel = rtl8169_get_msglevel,
+ .set_msglevel = rtl8169_set_msglevel,
+ .get_rx_csum = rtl8169_get_rx_csum,
+ .set_rx_csum = rtl8169_set_rx_csum,
+ .set_tx_csum = ethtool_op_set_tx_csum,
+ .set_sg = ethtool_op_set_sg,
+ .set_tso = ethtool_op_set_tso,
+ .get_regs = rtl8169_get_regs,
+ .get_wol = rtl8169_get_wol,
+ .set_wol = rtl8169_set_wol,
+ .get_strings = rtl8169_get_strings,
+ .get_sset_count = rtl8169_get_sset_count,
+ .get_ethtool_stats = rtl8169_get_ethtool_stats,
+};
+
+static void rtl8169_write_gmii_reg_bit(void __iomem *ioaddr, int reg,
+ int bitnum, int bitval)
+{
+ int val;
+
+ val = mdio_read(ioaddr, reg);
+ val = (bitval == 1) ?
+ val | (bitval << bitnum) : val & ~(0x0001 << bitnum);
+ mdio_write(ioaddr, reg, val & 0xffff);
+}
+
+static void rtl8169_get_mac_version(struct rtl8169_private *tp,
+ void __iomem *ioaddr)
+{
+ /*
+ * The driver currently handles the 8168Bf and the 8168Be identically
+ * but they can be identified more specifically through the test below
+ * if needed:
+ *
+ * (RTL_R32(TxConfig) & 0x700000) == 0x500000 ? 8168Bf : 8168Be
+ *
+ * Same thing for the 8101Eb and the 8101Ec:
+ *
+ * (RTL_R32(TxConfig) & 0x700000) == 0x200000 ? 8101Eb : 8101Ec
+ */
+ const struct {
+ u32 mask;
+ u32 val;
+ int mac_version;
+ } mac_info[] = {
+ /* 8168B family. */
+ { 0x7c800000, 0x3c800000, RTL_GIGA_MAC_VER_18 },
+ { 0x7cf00000, 0x3c000000, RTL_GIGA_MAC_VER_19 },
+ { 0x7cf00000, 0x3c200000, RTL_GIGA_MAC_VER_20 },
+ { 0x7c800000, 0x3c000000, RTL_GIGA_MAC_VER_20 },
+
+ /* 8168B family. */
+ { 0x7cf00000, 0x38000000, RTL_GIGA_MAC_VER_12 },
+ { 0x7cf00000, 0x38500000, RTL_GIGA_MAC_VER_17 },
+ { 0x7c800000, 0x38000000, RTL_GIGA_MAC_VER_17 },
+ { 0x7c800000, 0x30000000, RTL_GIGA_MAC_VER_11 },
+
+ /* 8101 family. */
+ { 0x7cf00000, 0x34000000, RTL_GIGA_MAC_VER_13 },
+ { 0x7cf00000, 0x34200000, RTL_GIGA_MAC_VER_16 },
+ { 0x7c800000, 0x34000000, RTL_GIGA_MAC_VER_16 },
+ /* FIXME: where did these entries come from ? -- FR */
+ { 0xfc800000, 0x38800000, RTL_GIGA_MAC_VER_15 },
+ { 0xfc800000, 0x30800000, RTL_GIGA_MAC_VER_14 },
+
+ /* 8110 family. */
+ { 0xfc800000, 0x98000000, RTL_GIGA_MAC_VER_06 },
+ { 0xfc800000, 0x18000000, RTL_GIGA_MAC_VER_05 },
+ { 0xfc800000, 0x10000000, RTL_GIGA_MAC_VER_04 },
+ { 0xfc800000, 0x04000000, RTL_GIGA_MAC_VER_03 },
+ { 0xfc800000, 0x00800000, RTL_GIGA_MAC_VER_02 },
+ { 0xfc800000, 0x00000000, RTL_GIGA_MAC_VER_01 },
+
+ { 0x00000000, 0x00000000, RTL_GIGA_MAC_VER_01 } /* Catch-all */
+ }, *p = mac_info;
+ u32 reg;
+
+ reg = RTL_R32(TxConfig);
+ while ((reg & p->mask) != p->val)
+ p++;
+ tp->mac_version = p->mac_version;
+
+ if (p->mask == 0x00000000) {
+ struct pci_dev *pdev = tp->pci_dev;
+
+ dev_info(&pdev->dev, "unknown MAC (%08x)\n", reg);
+ }
+}
+
+static void rtl8169_print_mac_version(struct rtl8169_private *tp)
+{
+ dprintk("mac_version = 0x%02x\n", tp->mac_version);
+}
+
+struct phy_reg {
+ u16 reg;
+ u16 val;
+};
+
+static void rtl_phy_write(void __iomem *ioaddr, struct phy_reg *regs, int len)
+{
+ while (len-- > 0) {
+ mdio_write(ioaddr, regs->reg, regs->val);
+ regs++;
+ }
+}
+
+static void rtl8169s_hw_phy_config(void __iomem *ioaddr)
+{
+ struct {
+ u16 regs[5]; /* Beware of bit-sign propagation */
+ } phy_magic[5] = { {
+ { 0x0000, //w 4 15 12 0
+ 0x00a1, //w 3 15 0 00a1
+ 0x0008, //w 2 15 0 0008
+ 0x1020, //w 1 15 0 1020
+ 0x1000 } },{ //w 0 15 0 1000
+ { 0x7000, //w 4 15 12 7
+ 0xff41, //w 3 15 0 ff41
+ 0xde60, //w 2 15 0 de60
+ 0x0140, //w 1 15 0 0140
+ 0x0077 } },{ //w 0 15 0 0077
+ { 0xa000, //w 4 15 12 a
+ 0xdf01, //w 3 15 0 df01
+ 0xdf20, //w 2 15 0 df20
+ 0xff95, //w 1 15 0 ff95
+ 0xfa00 } },{ //w 0 15 0 fa00
+ { 0xb000, //w 4 15 12 b
+ 0xff41, //w 3 15 0 ff41
+ 0xde20, //w 2 15 0 de20
+ 0x0140, //w 1 15 0 0140
+ 0x00bb } },{ //w 0 15 0 00bb
+ { 0xf000, //w 4 15 12 f
+ 0xdf01, //w 3 15 0 df01
+ 0xdf20, //w 2 15 0 df20
+ 0xff95, //w 1 15 0 ff95
+ 0xbf00 } //w 0 15 0 bf00
+ }
+ }, *p = phy_magic;
+ unsigned int i;
+
+ mdio_write(ioaddr, 0x1f, 0x0001); //w 31 2 0 1
+ mdio_write(ioaddr, 0x15, 0x1000); //w 21 15 0 1000
+ mdio_write(ioaddr, 0x18, 0x65c7); //w 24 15 0 65c7
+ rtl8169_write_gmii_reg_bit(ioaddr, 4, 11, 0); //w 4 11 11 0
+
+ for (i = 0; i < ARRAY_SIZE(phy_magic); i++, p++) {
+ int val, pos = 4;
+
+ val = (mdio_read(ioaddr, pos) & 0x0fff) | (p->regs[0] & 0xffff);
+ mdio_write(ioaddr, pos, val);
+ while (--pos >= 0)
+ mdio_write(ioaddr, pos, p->regs[4 - pos] & 0xffff);
+ rtl8169_write_gmii_reg_bit(ioaddr, 4, 11, 1); //w 4 11 11 1
+ rtl8169_write_gmii_reg_bit(ioaddr, 4, 11, 0); //w 4 11 11 0
+ }
+ mdio_write(ioaddr, 0x1f, 0x0000); //w 31 2 0 0
+}
+
+static void rtl8169sb_hw_phy_config(void __iomem *ioaddr)
+{
+ struct phy_reg phy_reg_init[] = {
+ { 0x1f, 0x0002 },
+ { 0x01, 0x90d0 },
+ { 0x1f, 0x0000 }
+ };
+
+ rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init));
+}
+
+static void rtl8168cp_hw_phy_config(void __iomem *ioaddr)
+{
+ struct phy_reg phy_reg_init[] = {
+ { 0x1f, 0x0000 },
+ { 0x1d, 0x0f00 },
+ { 0x1f, 0x0002 },
+ { 0x0c, 0x1ec8 },
+ { 0x1f, 0x0000 }
+ };
+
+ rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init));
+}
+
+static void rtl8168c_hw_phy_config(void __iomem *ioaddr)
+{
+ struct phy_reg phy_reg_init[] = {
+ { 0x1f, 0x0001 },
+ { 0x12, 0x2300 },
+ { 0x1f, 0x0002 },
+ { 0x00, 0x88d4 },
+ { 0x01, 0x82b1 },
+ { 0x03, 0x7002 },
+ { 0x08, 0x9e30 },
+ { 0x09, 0x01f0 },
+ { 0x0a, 0x5500 },
+ { 0x0c, 0x00c8 },
+ { 0x1f, 0x0003 },
+ { 0x12, 0xc096 },
+ { 0x16, 0x000a },
+ { 0x1f, 0x0000 }
+ };
+
+ rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init));
+}
+
+static void rtl8168cx_hw_phy_config(void __iomem *ioaddr)
+{
+ struct phy_reg phy_reg_init[] = {
+ { 0x1f, 0x0000 },
+ { 0x12, 0x2300 },
+ { 0x1f, 0x0003 },
+ { 0x16, 0x0f0a },
+ { 0x1f, 0x0000 },
+ { 0x1f, 0x0002 },
+ { 0x0c, 0x7eb8 },
+ { 0x1f, 0x0000 }
+ };
+
+ rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init));
+}
+
+static void rtl_hw_phy_config(struct net_device *dev)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->mmio_addr;
+
+ rtl8169_print_mac_version(tp);
+
+ switch (tp->mac_version) {
+ case RTL_GIGA_MAC_VER_01:
+ break;
+ case RTL_GIGA_MAC_VER_02:
+ case RTL_GIGA_MAC_VER_03:
+ rtl8169s_hw_phy_config(ioaddr);
+ break;
+ case RTL_GIGA_MAC_VER_04:
+ rtl8169sb_hw_phy_config(ioaddr);
+ break;
+ case RTL_GIGA_MAC_VER_18:
+ rtl8168cp_hw_phy_config(ioaddr);
+ break;
+ case RTL_GIGA_MAC_VER_19:
+ rtl8168c_hw_phy_config(ioaddr);
+ break;
+ case RTL_GIGA_MAC_VER_20:
+ rtl8168cx_hw_phy_config(ioaddr);
+ break;
+ default:
+ break;
+ }
+}
+
+static void rtl8169_phy_timer(unsigned long __opaque)
+{
+ struct net_device *dev = (struct net_device *)__opaque;
+ struct rtl8169_private *tp = netdev_priv(dev);
+ struct timer_list *timer = &tp->timer;
+ void __iomem *ioaddr = tp->mmio_addr;
+ unsigned long timeout = RTL8169_PHY_TIMEOUT;
+
+ assert(tp->mac_version > RTL_GIGA_MAC_VER_01);
+
+ if (!(tp->phy_1000_ctrl_reg & ADVERTISE_1000FULL))
+ return;
+
+ if (!tp->ecdev)
+ 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:
+ if (!tp->ecdev)
+ mod_timer(timer, jiffies + timeout);
+out_unlock:
+ if (!tp->ecdev)
+ 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->ecdev || 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->ecdev || tp->mac_version <= RTL_GIGA_MAC_VER_01)
+ return;
+
+ mod_timer(timer, jiffies + RTL8169_PHY_TIMEOUT);
+}
+
+static void ec_poll(struct net_device *dev)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ struct pci_dev *pdev = tp->pci_dev;
+
+ rtl8169_interrupt(pdev->irq, dev);
+
+ if (jiffies - tp->ec_watchdog_jiffies >= 2 * HZ) {
+ rtl8169_phy_timer((unsigned long) dev);
+ tp->ec_watchdog_jiffies = jiffies;
+ }
+}
+
+#ifdef CONFIG_NET_POLL_CONTROLLER
+/*
+ * Polling 'interrupt' - used by things like netconsole to send skbs
+ * without having to re-enable interrupts. It's not called while
+ * the interrupt routine is executing.
+ */
+static void rtl8169_netpoll(struct net_device *dev)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ struct pci_dev *pdev = tp->pci_dev;
+
+ disable_irq(pdev->irq);
+ rtl8169_interrupt(pdev->irq, dev);
+ enable_irq(pdev->irq);
+}
+#endif
+
+static void rtl8169_release_board(struct pci_dev *pdev, struct net_device *dev,
+ void __iomem *ioaddr)
+{
+ iounmap(ioaddr);
+ pci_release_regions(pdev);
+ pci_disable_device(pdev);
+ free_netdev(dev);
+}
+
+static void rtl8169_phy_reset(struct net_device *dev,
+ struct rtl8169_private *tp)
+{
+ void __iomem *ioaddr = tp->mmio_addr;
+ unsigned int i;
+
+ tp->phy_reset_enable(ioaddr);
+ for (i = 0; i < 100; i++) {
+ if (!tp->phy_reset_pending(ioaddr))
+ return;
+ msleep(1);
+ }
+ if (netif_msg_link(tp))
+ printk(KERN_ERR "%s: PHY reset failed.\n", dev->name);
+}
+
+static void rtl8169_init_phy(struct net_device *dev, struct rtl8169_private *tp)
+{
+ void __iomem *ioaddr = tp->mmio_addr;
+
+ rtl_hw_phy_config(dev);
+
+ dprintk("Set MAC Reg C+CR Offset 0x82h = 0x01h\n");
+ RTL_W8(0x82, 0x01);
+
+ pci_write_config_byte(tp->pci_dev, PCI_LATENCY_TIMER, 0x40);
+
+ if (tp->mac_version <= RTL_GIGA_MAC_VER_06)
+ pci_write_config_byte(tp->pci_dev, PCI_CACHE_LINE_SIZE, 0x08);
+
+ if (tp->mac_version == RTL_GIGA_MAC_VER_02) {
+ dprintk("Set MAC Reg C+CR Offset 0x82h = 0x01h\n");
+ RTL_W8(0x82, 0x01);
+ dprintk("Set PHY Reg 0x0bh = 0x00h\n");
+ mdio_write(ioaddr, 0x0b, 0x0000); //w 0x0b 15 0 0
+ }
+
+ rtl8169_phy_reset(dev, tp);
+
+ /*
+ * rtl8169_set_speed_xmii takes good care of the Fast Ethernet
+ * only 8101. Don't panic.
+ */
+ rtl8169_set_speed(dev, AUTONEG_ENABLE, SPEED_1000, DUPLEX_FULL);
+
+ if ((RTL_R8(PHYstatus) & TBI_Enable) && netif_msg_link(tp))
+ printk(KERN_INFO PFX "%s: TBI auto-negotiating\n", dev->name);
+}
+
+static void rtl_rar_set(struct rtl8169_private *tp, u8 *addr)
+{
+ void __iomem *ioaddr = tp->mmio_addr;
+ u32 high;
+ u32 low;
+
+ low = addr[0] | (addr[1] << 8) | (addr[2] << 16) | (addr[3] << 24);
+ high = addr[4] | (addr[5] << 8);
+
+ spin_lock_irq(&tp->lock);
+
+ RTL_W8(Cfg9346, Cfg9346_Unlock);
+ RTL_W32(MAC0, low);
+ RTL_W32(MAC4, high);
+ RTL_W8(Cfg9346, Cfg9346_Lock);
+
+ spin_unlock_irq(&tp->lock);
+}
+
+static int rtl_set_mac_address(struct net_device *dev, void *p)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ struct sockaddr *addr = p;
+
+ if (!is_valid_ether_addr(addr->sa_data))
+ return -EADDRNOTAVAIL;
+
+ memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
+
+ rtl_rar_set(tp, dev->dev_addr);
+
+ return 0;
+}
+
+static int rtl8169_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ struct mii_ioctl_data *data = if_mii(ifr);
+
+ if (!netif_running(dev))
+ return -ENODEV;
+
+ switch (cmd) {
+ case SIOCGMIIPHY:
+ data->phy_id = 32; /* Internal PHY */
+ return 0;
+
+ case SIOCGMIIREG:
+ data->val_out = mdio_read(tp->mmio_addr, data->reg_num & 0x1f);
+ return 0;
+
+ case SIOCSMIIREG:
+ if (!capable(CAP_NET_ADMIN))
+ return -EPERM;
+ mdio_write(tp->mmio_addr, data->reg_num & 0x1f, data->val_in);
+ return 0;
+ }
+ return -EOPNOTSUPP;
+}
+
+static const struct rtl_cfg_info {
+ void (*hw_start)(struct net_device *);
+ unsigned int region;
+ unsigned int align;
+ u16 intr_event;
+ u16 napi_event;
+ unsigned msi;
+} rtl_cfg_infos [] = {
+ [RTL_CFG_0] = {
+ .hw_start = rtl_hw_start_8169,
+ .region = 1,
+ .align = 0,
+ .intr_event = SYSErr | LinkChg | RxOverflow |
+ RxFIFOOver | TxErr | TxOK | RxOK | RxErr,
+ .napi_event = RxFIFOOver | TxErr | TxOK | RxOK | RxOverflow,
+ .msi = 0
+ },
+ [RTL_CFG_1] = {
+ .hw_start = rtl_hw_start_8168,
+ .region = 2,
+ .align = 8,
+ .intr_event = SYSErr | LinkChg | RxOverflow |
+ TxErr | TxOK | RxOK | RxErr,
+ .napi_event = TxErr | TxOK | RxOK | RxOverflow,
+ .msi = RTL_FEATURE_MSI
+ },
+ [RTL_CFG_2] = {
+ .hw_start = rtl_hw_start_8101,
+ .region = 2,
+ .align = 8,
+ .intr_event = SYSErr | LinkChg | RxOverflow | PCSTimeout |
+ RxFIFOOver | TxErr | TxOK | RxOK | RxErr,
+ .napi_event = RxFIFOOver | TxErr | TxOK | RxOK | RxOverflow,
+ .msi = RTL_FEATURE_MSI
+ }
+};
+
+/* Cfg9346_Unlock assumed. */
+static unsigned rtl_try_msi(struct pci_dev *pdev, void __iomem *ioaddr,
+ const struct rtl_cfg_info *cfg)
+{
+ unsigned msi = 0;
+ u8 cfg2;
+
+ cfg2 = RTL_R8(Config2) & ~MSIEnable;
+ if (cfg->msi) {
+ if (pci_enable_msi(pdev)) {
+ dev_info(&pdev->dev, "no MSI. Back to INTx.\n");
+ } else {
+ cfg2 |= MSIEnable;
+ msi = RTL_FEATURE_MSI;
+ }
+ }
+ RTL_W8(Config2, cfg2);
+ return msi;
+}
+
+static void rtl_disable_msi(struct pci_dev *pdev, struct rtl8169_private *tp)
+{
+ if (tp->features & RTL_FEATURE_MSI) {
+ pci_disable_msi(pdev);
+ tp->features &= ~RTL_FEATURE_MSI;
+ }
+}
+
+static int __devinit
+rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
+{
+ const struct rtl_cfg_info *cfg = rtl_cfg_infos + ent->driver_data;
+ const unsigned int region = cfg->region;
+ struct rtl8169_private *tp;
+ struct net_device *dev;
+ void __iomem *ioaddr;
+ unsigned int i;
+ int rc;
+
+ if (netif_msg_drv(&debug)) {
+ printk(KERN_INFO "%s Gigabit Ethernet driver %s loaded\n",
+ MODULENAME, RTL8169_VERSION);
+ }
+
+ dev = alloc_etherdev(sizeof (*tp));
+ if (!dev) {
+ if (netif_msg_drv(&debug))
+ dev_err(&pdev->dev, "unable to alloc new ethernet\n");
+ rc = -ENOMEM;
+ goto out;
+ }
+
+ SET_NETDEV_DEV(dev, &pdev->dev);
+ tp = netdev_priv(dev);
+ tp->dev = dev;
+ tp->msg_enable = netif_msg_init(debug.msg_enable, R8169_MSG_DEFAULT);
+
+ /* enable device (incl. PCI PM wakeup and hotplug setup) */
+ rc = pci_enable_device(pdev);
+ if (rc < 0) {
+ if (netif_msg_probe(tp))
+ dev_err(&pdev->dev, "enable failure\n");
+ goto err_out_free_dev_1;
+ }
+
+ rc = pci_set_mwi(pdev);
+ if (rc < 0)
+ goto err_out_disable_2;
+
+ /* make sure PCI base addr 1 is MMIO */
+ if (!(pci_resource_flags(pdev, region) & IORESOURCE_MEM)) {
+ if (netif_msg_probe(tp)) {
+ dev_err(&pdev->dev,
+ "region #%d not an MMIO resource, aborting\n",
+ region);
+ }
+ rc = -ENODEV;
+ goto err_out_mwi_3;
+ }
+
+ /* check for weird/broken PCI region reporting */
+ if (pci_resource_len(pdev, region) < R8169_REGS_SIZE) {
+ if (netif_msg_probe(tp)) {
+ dev_err(&pdev->dev,
+ "Invalid PCI region size(s), aborting\n");
+ }
+ rc = -ENODEV;
+ goto err_out_mwi_3;
+ }
+
+ rc = pci_request_regions(pdev, MODULENAME);
+ if (rc < 0) {
+ if (netif_msg_probe(tp))
+ dev_err(&pdev->dev, "could not request regions.\n");
+ goto err_out_mwi_3;
+ }
+
+ tp->cp_cmd = PCIMulRW | RxChkSum;
+
+ if ((sizeof(dma_addr_t) > 4) &&
+ !pci_set_dma_mask(pdev, DMA_64BIT_MASK) && use_dac) {
+ tp->cp_cmd |= PCIDAC;
+ dev->features |= NETIF_F_HIGHDMA;
+ } else {
+ rc = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
+ if (rc < 0) {
+ if (netif_msg_probe(tp)) {
+ dev_err(&pdev->dev,
+ "DMA configuration failed.\n");
+ }
+ goto err_out_free_res_4;
+ }
+ }
+
+ pci_set_master(pdev);
+
+ /* ioremap MMIO region */
+ ioaddr = ioremap(pci_resource_start(pdev, region), R8169_REGS_SIZE);
+ if (!ioaddr) {
+ if (netif_msg_probe(tp))
+ dev_err(&pdev->dev, "cannot remap MMIO, aborting\n");
+ rc = -EIO;
+ goto err_out_free_res_4;
+ }
+
+ /* Unneeded ? Don't mess with Mrs. Murphy. */
+ rtl8169_irq_mask_and_ack(ioaddr);
+
+ /* Soft reset the chip. */
+ RTL_W8(ChipCmd, CmdReset);
+
+ /* Check that the chip has finished the reset. */
+ for (i = 0; i < 100; i++) {
+ if ((RTL_R8(ChipCmd) & CmdReset) == 0)
+ break;
+ msleep_interruptible(1);
+ }
+
+ /* Identify chip attached to board */
+ rtl8169_get_mac_version(tp, ioaddr);
+
+ rtl8169_print_mac_version(tp);
+
+ for (i = ARRAY_SIZE(rtl_chip_info) - 1; i >= 0; i--) {
+ if (tp->mac_version == rtl_chip_info[i].mac_version)
+ break;
+ }
+ if (i < 0) {
+ /* Unknown chip: assume array element #0, original RTL-8169 */
+ if (netif_msg_probe(tp)) {
+ dev_printk(KERN_DEBUG, &pdev->dev,
+ "unknown chip version, assuming %s\n",
+ rtl_chip_info[0].name);
+ }
+ i++;
+ }
+ tp->chipset = i;
+
+ RTL_W8(Cfg9346, Cfg9346_Unlock);
+ RTL_W8(Config1, RTL_R8(Config1) | PMEnable);
+ RTL_W8(Config5, RTL_R8(Config5) & PMEStatus);
+ tp->features |= rtl_try_msi(pdev, ioaddr, cfg);
+ RTL_W8(Cfg9346, Cfg9346_Lock);
+
+ if ((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->phy_1000_ctrl_reg = ADVERTISE_1000FULL; /* Implied by TBI */
+ } else {
+ tp->set_speed = rtl8169_set_speed_xmii;
+ tp->get_settings = rtl8169_gset_xmii;
+ tp->phy_reset_enable = rtl8169_xmii_reset_enable;
+ tp->phy_reset_pending = rtl8169_xmii_reset_pending;
+ tp->link_ok = rtl8169_xmii_link_ok;
+
+ dev->do_ioctl = rtl8169_ioctl;
+ }
+
+ /* Get MAC address. FIXME: read EEPROM */
+ for (i = 0; i < MAC_ADDR_LEN; i++)
+ dev->dev_addr[i] = RTL_R8(MAC0 + i);
+ memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len);
+
+ dev->open = rtl8169_open;
+ dev->hard_start_xmit = rtl8169_start_xmit;
+ dev->get_stats = rtl8169_get_stats;
+ SET_ETHTOOL_OPS(dev, &rtl8169_ethtool_ops);
+ dev->stop = rtl8169_close;
+ dev->tx_timeout = rtl8169_tx_timeout;
+ dev->set_multicast_list = rtl_set_rx_mode;
+ dev->watchdog_timeo = RTL8169_TX_TIMEOUT;
+ dev->irq = pdev->irq;
+ dev->base_addr = (unsigned long) ioaddr;
+ dev->change_mtu = rtl8169_change_mtu;
+ dev->set_mac_address = rtl_set_mac_address;
+
+#ifdef CONFIG_R8169_NAPI
+ netif_napi_add(dev, &tp->napi, rtl8169_poll, R8169_NAPI_WEIGHT);
+#endif
+
+#ifdef CONFIG_R8169_VLAN
+ dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
+ dev->vlan_rx_register = rtl8169_vlan_rx_register;
+#endif
+
+#ifdef CONFIG_NET_POLL_CONTROLLER
+ dev->poll_controller = rtl8169_netpoll;
+#endif
+
+ tp->intr_mask = 0xffff;
+ tp->pci_dev = pdev;
+ tp->mmio_addr = ioaddr;
+ tp->align = cfg->align;
+ tp->hw_start = cfg->hw_start;
+ tp->intr_event = cfg->intr_event;
+ tp->napi_event = cfg->napi_event;
+
+ init_timer(&tp->timer);
+ tp->timer.data = (unsigned long) dev;
+ tp->timer.function = rtl8169_phy_timer;
+
+ spin_lock_init(&tp->lock);
+
+ // offer device to EtherCAT master module
+ tp->ecdev = ecdev_offer(dev, ec_poll, THIS_MODULE);
+
+ if (!tp->ecdev) {
+ rc = register_netdev(dev);
+ if (rc < 0)
+ goto err_out_msi_5;
+ }
+
+ pci_set_drvdata(pdev, dev);
+
+ if (netif_msg_probe(tp)) {
+ u32 xid = RTL_R32(TxConfig) & 0x7cf0f8ff;
+
+ printk(KERN_INFO "%s: %s at 0x%lx, "
+ "%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x, "
+ "XID %08x IRQ %d\n",
+ dev->name,
+ rtl_chip_info[tp->chipset].name,
+ dev->base_addr,
+ dev->dev_addr[0], dev->dev_addr[1],
+ dev->dev_addr[2], dev->dev_addr[3],
+ dev->dev_addr[4], dev->dev_addr[5], xid, dev->irq);
+ }
+
+ rtl8169_init_phy(dev, tp);
+
+ if (tp->ecdev && ecdev_open(tp->ecdev)) {
+ ecdev_withdraw(tp->ecdev);
+ goto err_out_msi_5;
+ }
+
+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();
+
+ if (tp->ecdev) {
+ ecdev_close(tp->ecdev);
+ ecdev_withdraw(tp->ecdev);
+ } else {
+ 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();
+
+ if (!tp->ecdev) {
+ retval = request_irq(dev->irq, rtl8169_interrupt,
+ (tp->features & RTL_FEATURE_MSI) ? 0 : IRQF_SHARED,
+ dev->name, dev);
+ if (retval < 0)
+ goto err_release_ring_2;
+
+#ifdef CONFIG_R8169_NAPI
+ napi_enable(&tp->napi);
+#endif
+ }
+
+ rtl_hw_start(dev);
+
+ rtl8169_request_timer(dev);
+
+ rtl8169_check_link_status(dev, tp, tp->mmio_addr);
+out:
+ return retval;
+
+err_release_ring_2:
+ rtl8169_rx_clear(tp);
+err_free_rx_1:
+ pci_free_consistent(pdev, R8169_RX_RING_BYTES, tp->RxDescArray,
+ tp->RxPhyAddr);
+err_free_tx_0:
+ pci_free_consistent(pdev, R8169_TX_RING_BYTES, tp->TxDescArray,
+ tp->TxPhyAddr);
+ goto out;
+}
+
+static void rtl8169_hw_reset(void __iomem *ioaddr)
+{
+ /* Disable interrupts */
+ rtl8169_irq_mask_and_ack(ioaddr);
+
+ /* Reset the chipset */
+ RTL_W8(ChipCmd, CmdReset);
+
+ /* PCI commit */
+ RTL_R8(ChipCmd);
+}
+
+static void rtl_set_rx_tx_config_registers(struct rtl8169_private *tp)
+{
+ void __iomem *ioaddr = tp->mmio_addr;
+ u32 cfg = rtl8169_rx_config;
+
+ cfg |= (RTL_R32(RxConfig) & rtl_chip_info[tp->chipset].RxConfigMask);
+ RTL_W32(RxConfig, cfg);
+
+ /* Set DMA burst size and Interframe Gap Time */
+ RTL_W32(TxConfig, (TX_DMA_BURST << TxDMAShift) |
+ (InterFrameGap << TxInterFrameGapShift));
+}
+
+static void rtl_hw_start(struct net_device *dev)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->mmio_addr;
+ unsigned int i;
+
+ /* Soft reset the chip. */
+ RTL_W8(ChipCmd, CmdReset);
+
+ /* Check that the chip has finished the reset. */
+ for (i = 0; i < 100; i++) {
+ if ((RTL_R8(ChipCmd) & CmdReset) == 0)
+ break;
+ msleep_interruptible(1);
+ }
+
+ tp->hw_start(dev);
+
+ if (!tp->ecdev)
+ netif_start_queue(dev);
+}
+
+
+static void rtl_set_rx_tx_desc_registers(struct rtl8169_private *tp,
+ void __iomem *ioaddr)
+{
+ /*
+ * Magic spell: some iop3xx ARM board needs the TxDescAddrHigh
+ * register to be written before TxDescAddrLow to work.
+ * Switching from MMIO to I/O access fixes the issue as well.
+ */
+ RTL_W32(TxDescStartAddrHigh, ((u64) tp->TxPhyAddr) >> 32);
+ RTL_W32(TxDescStartAddrLow, ((u64) tp->TxPhyAddr) & DMA_32BIT_MASK);
+ RTL_W32(RxDescAddrHigh, ((u64) tp->RxPhyAddr) >> 32);
+ RTL_W32(RxDescAddrLow, ((u64) tp->RxPhyAddr) & DMA_32BIT_MASK);
+}
+
+static u16 rtl_rw_cpluscmd(void __iomem *ioaddr)
+{
+ u16 cmd;
+
+ cmd = RTL_R16(CPlusCmd);
+ RTL_W16(CPlusCmd, cmd);
+ return cmd;
+}
+
+static void rtl_set_rx_max_size(void __iomem *ioaddr)
+{
+ /* Low hurts. Let's disable the filtering. */
+ RTL_W16(RxMaxSize, 16383);
+}
+
+static void rtl8169_set_magic_reg(void __iomem *ioaddr, unsigned mac_version)
+{
+ struct {
+ u32 mac_version;
+ u32 clk;
+ u32 val;
+ } cfg2_info [] = {
+ { RTL_GIGA_MAC_VER_05, PCI_Clock_33MHz, 0x000fff00 }, // 8110SCd
+ { RTL_GIGA_MAC_VER_05, PCI_Clock_66MHz, 0x000fffff },
+ { RTL_GIGA_MAC_VER_06, PCI_Clock_33MHz, 0x00ffff00 }, // 8110SCe
+ { RTL_GIGA_MAC_VER_06, PCI_Clock_66MHz, 0x00ffffff }
+ }, *p = cfg2_info;
+ unsigned int i;
+ u32 clk;
+
+ clk = RTL_R8(Config2) & PCI_Clock_66MHz;
+ for (i = 0; i < ARRAY_SIZE(cfg2_info); i++, 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;
+
+ printk(KERN_INFO "%s\n", __func__);
+
+ if (tp->mac_version == RTL_GIGA_MAC_VER_05) {
+ RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) | PCIMulRW);
+ pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE, 0x08);
+ }
+
+ RTL_W8(Cfg9346, Cfg9346_Unlock);
+ if ((tp->mac_version == RTL_GIGA_MAC_VER_01) ||
+ (tp->mac_version == RTL_GIGA_MAC_VER_02) ||
+ (tp->mac_version == RTL_GIGA_MAC_VER_03) ||
+ (tp->mac_version == RTL_GIGA_MAC_VER_04))
+ RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb);
+
+ RTL_W8(EarlyTxThres, EarlyTxThld);
+
+ rtl_set_rx_max_size(ioaddr);
+
+ if ((tp->mac_version == RTL_GIGA_MAC_VER_01) ||
+ (tp->mac_version == RTL_GIGA_MAC_VER_02) ||
+ (tp->mac_version == RTL_GIGA_MAC_VER_03) ||
+ (tp->mac_version == RTL_GIGA_MAC_VER_04))
+ rtl_set_rx_tx_config_registers(tp);
+
+ tp->cp_cmd |= rtl_rw_cpluscmd(ioaddr) | PCIMulRW;
+
+ if ((tp->mac_version == RTL_GIGA_MAC_VER_02) ||
+ (tp->mac_version == RTL_GIGA_MAC_VER_03)) {
+ dprintk("Set MAC Reg C+CR Offset 0xE0. "
+ "Bit-3 and bit-14 MUST be 1\n");
+ tp->cp_cmd |= (1 << 14);
+ }
+
+ RTL_W16(CPlusCmd, tp->cp_cmd);
+
+ rtl8169_set_magic_reg(ioaddr, tp->mac_version);
+
+ /*
+ * Undocumented corner. Supposedly:
+ * (TxTimer << 12) | (TxPackets << 8) | (RxTimer << 4) | RxPackets
+ */
+ RTL_W16(IntrMitigate, 0x0000);
+
+ rtl_set_rx_tx_desc_registers(tp, ioaddr);
+
+ if ((tp->mac_version != RTL_GIGA_MAC_VER_01) &&
+ (tp->mac_version != RTL_GIGA_MAC_VER_02) &&
+ (tp->mac_version != RTL_GIGA_MAC_VER_03) &&
+ (tp->mac_version != RTL_GIGA_MAC_VER_04)) {
+ RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb);
+ rtl_set_rx_tx_config_registers(tp);
+ }
+
+ RTL_W8(Cfg9346, Cfg9346_Lock);
+
+ /* Initially a 10 us delay. Turned it into a PCI commit. - FR */
+ RTL_R8(IntrMask);
+
+ RTL_W32(RxMissed, 0);
+
+ rtl_set_rx_mode(dev);
+
+ /* no early-rx interrupts */
+ RTL_W16(MultiIntr, RTL_R16(MultiIntr) & 0xF000);
+
+ /* Enable all known interrupts by setting the interrupt mask. */
+ if (!tp->ecdev)
+ RTL_W16(IntrMask, tp->intr_event);
+}
+
+static void rtl_hw_start_8168(struct net_device *dev)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->mmio_addr;
+ struct pci_dev *pdev = tp->pci_dev;
+ u8 ctl;
+
+ RTL_W8(Cfg9346, Cfg9346_Unlock);
+
+ RTL_W8(EarlyTxThres, EarlyTxThld);
+
+ rtl_set_rx_max_size(ioaddr);
+
+ rtl_set_rx_tx_config_registers(tp);
+
+ tp->cp_cmd |= RTL_R16(CPlusCmd) | PktCntrDisable | INTT_1;
+
+ RTL_W16(CPlusCmd, tp->cp_cmd);
+
+ /* Tx performance tweak. */
+ pci_read_config_byte(pdev, 0x69, &ctl);
+ ctl = (ctl & ~0x70) | 0x50;
+ pci_write_config_byte(pdev, 0x69, ctl);
+
+ RTL_W16(IntrMitigate, 0x5151);
+
+ /* Work around for RxFIFO overflow. */
+ if (tp->mac_version == RTL_GIGA_MAC_VER_11) {
+ tp->intr_event |= RxFIFOOver | PCSTimeout;
+ tp->intr_event &= ~RxOverflow;
+ }
+
+ rtl_set_rx_tx_desc_registers(tp, ioaddr);
+
+ RTL_W8(Cfg9346, Cfg9346_Lock);
+
+ RTL_R8(IntrMask);
+
+ RTL_W32(RxMissed, 0);
+
+ rtl_set_rx_mode(dev);
+
+ RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb);
+
+ RTL_W16(MultiIntr, RTL_R16(MultiIntr) & 0xF000);
+
+ if (!tp->ecdev)
+ RTL_W16(IntrMask, tp->intr_event);
+}
+
+static void rtl_hw_start_8101(struct net_device *dev)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->mmio_addr;
+ struct pci_dev *pdev = tp->pci_dev;
+
+ if ((tp->mac_version == RTL_GIGA_MAC_VER_13) ||
+ (tp->mac_version == RTL_GIGA_MAC_VER_16)) {
+ pci_write_config_word(pdev, 0x68, 0x00);
+ pci_write_config_word(pdev, 0x69, 0x08);
+ }
+
+ RTL_W8(Cfg9346, Cfg9346_Unlock);
+
+ RTL_W8(EarlyTxThres, EarlyTxThld);
+
+ rtl_set_rx_max_size(ioaddr);
+
+ tp->cp_cmd |= rtl_rw_cpluscmd(ioaddr) | PCIMulRW;
+
+ RTL_W16(CPlusCmd, tp->cp_cmd);
+
+ RTL_W16(IntrMitigate, 0x0000);
+
+ rtl_set_rx_tx_desc_registers(tp, ioaddr);
+
+ RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb);
+ rtl_set_rx_tx_config_registers(tp);
+
+ RTL_W8(Cfg9346, Cfg9346_Lock);
+
+ RTL_R8(IntrMask);
+
+ RTL_W32(RxMissed, 0);
+
+ rtl_set_rx_mode(dev);
+
+ RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb);
+
+ RTL_W16(MultiIntr, RTL_R16(MultiIntr) & 0xf000);
+
+ if (!tp->ecdev)
+ RTL_W16(IntrMask, tp->intr_event);
+}
+
+static int rtl8169_change_mtu(struct net_device *dev, int new_mtu)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ int ret = 0;
+
+ if (new_mtu < ETH_ZLEN || new_mtu > SafeMtu)
+ return -EINVAL;
+
+ dev->mtu = new_mtu;
+
+ if (!netif_running(dev))
+ goto out;
+
+ rtl8169_down(dev);
+
+ rtl8169_set_rxbufsize(tp, dev);
+
+ ret = rtl8169_init_ring(dev);
+ if (ret < 0)
+ goto out;
+
+#ifdef CONFIG_R8169_NAPI
+ napi_enable(&tp->napi);
+#endif
+
+ rtl_hw_start(dev);
+
+ rtl8169_request_timer(dev);
+
+out:
+ return ret;
+}
+
+static inline void rtl8169_make_unusable_by_asic(struct RxDesc *desc)
+{
+ desc->addr = 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) {
+ if (!tp->ecdev)
+ dev_kfree_skb(skb);
+ tx_skb->skb = NULL;
+ }
+ tp->dev->stats.tx_dropped++;
+ }
+ }
+ tp->cur_tx = tp->dirty_tx = 0;
+}
+
+static void rtl8169_schedule_work(struct net_device *dev, work_func_t task)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+
+ PREPARE_DELAYED_WORK(&tp->task, task);
+ schedule_delayed_work(&tp->task, 4);
+}
+
+static void rtl8169_wait_for_quiescence(struct net_device *dev)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->mmio_addr;
+
+ synchronize_irq(dev->irq);
+
+ /* Wait for any pending NAPI task to complete */
+#ifdef CONFIG_R8169_NAPI
+ napi_disable(&tp->napi);
+#endif
+
+ rtl8169_irq_mask_and_ack(ioaddr);
+
+#ifdef CONFIG_R8169_NAPI
+ tp->intr_mask = 0xffff;
+ RTL_W16(IntrMask, tp->intr_event);
+ napi_enable(&tp->napi);
+#endif
+}
+
+static void rtl8169_reinit_task(struct work_struct *work)
+{
+ struct rtl8169_private *tp =
+ container_of(work, struct rtl8169_private, task.work);
+ struct net_device *dev = tp->dev;
+ int ret;
+
+ rtnl_lock();
+
+ if (!netif_running(dev))
+ goto out_unlock;
+
+ rtl8169_wait_for_quiescence(dev);
+ rtl8169_close(dev);
+
+ ret = rtl8169_open(dev);
+ if (unlikely(ret < 0)) {
+ if (net_ratelimit() && netif_msg_drv(tp)) {
+ printk(KERN_ERR PFX "%s: reinit failure (status = %d)."
+ " Rescheduling.\n", dev->name, ret);
+ }
+ rtl8169_schedule_work(dev, rtl8169_reinit_task);
+ }
+
+out_unlock:
+ rtnl_unlock();
+}
+
+static void rtl8169_reset_task(struct work_struct *work)
+{
+ struct rtl8169_private *tp =
+ container_of(work, struct rtl8169_private, task.work);
+ struct net_device *dev = tp->dev;
+
+ rtnl_lock();
+
+ if (!netif_running(dev))
+ goto out_unlock;
+
+ rtl8169_wait_for_quiescence(dev);
+
+ rtl8169_rx_interrupt(dev, tp, tp->mmio_addr, ~(u32)0);
+ rtl8169_tx_clear(tp);
+
+ if (tp->dirty_rx == tp->cur_rx) {
+ rtl8169_init_ring_indexes(tp);
+ rtl_hw_start(dev);
+ netif_wake_queue(dev);
+ rtl8169_check_link_status(dev, tp, tp->mmio_addr);
+ } else {
+ if (net_ratelimit() && netif_msg_intr(tp)) {
+ printk(KERN_EMERG PFX "%s: Rx buffers shortage\n",
+ dev->name);
+ }
+ rtl8169_schedule_work(dev, rtl8169_reset_task);
+ }
+
+out_unlock:
+ rtnl_unlock();
+}
+
+static void rtl8169_tx_timeout(struct net_device *dev)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+
+ if (tp->ecdev)
+ return;
+
+ rtl8169_hw_reset(tp->mmio_addr);
+
+ /* Let's wait a bit while any (async) irq lands on */
+ rtl8169_schedule_work(dev, rtl8169_reset_task);
+}
+
+static int rtl8169_xmit_frags(struct rtl8169_private *tp, struct sk_buff *skb,
+ u32 opts1)
+{
+ struct skb_shared_info *info = skb_shinfo(skb);
+ unsigned int cur_frag, entry;
+ struct TxDesc * uninitialized_var(txd);
+
+ entry = tp->cur_tx;
+ for (cur_frag = 0; cur_frag < info->nr_frags; cur_frag++) {
+ skb_frag_t *frag = info->frags + cur_frag;
+ dma_addr_t mapping;
+ u32 status, len;
+ void *addr;
+
+ entry = (entry + 1) % NUM_TX_DESC;
+
+ txd = tp->TxDescArray + entry;
+ len = frag->size;
+ addr = ((void *) page_address(frag->page)) + frag->page_offset;
+ mapping = pci_map_single(tp->pci_dev, addr, len, PCI_DMA_TODEVICE);
+
+ /* anti gcc 2.95.3 bugware (sic) */
+ status = opts1 | len | (RingEnd * !((entry + 1) % NUM_TX_DESC));
+
+ txd->opts1 = cpu_to_le32(status);
+ txd->addr = cpu_to_le64(mapping);
+
+ tp->tx_skb[entry].len = len;
+ }
+
+ if (cur_frag) {
+ tp->tx_skb[entry].skb = skb;
+ txd->opts1 |= cpu_to_le32(LastFrag);
+ }
+
+ return cur_frag;
+}
+
+static inline u32 rtl8169_tso_csum(struct sk_buff *skb, struct net_device *dev)
+{
+ if (dev->features & NETIF_F_TSO) {
+ u32 mss = skb_shinfo(skb)->gso_size;
+
+ if (mss)
+ return LargeSend | ((mss & MSSMask) << MSSShift);
+ }
+ if (skb->ip_summed == CHECKSUM_PARTIAL) {
+ const struct iphdr *ip = ip_hdr(skb);
+
+ if (ip->protocol == IPPROTO_TCP)
+ return IPCS | TCPCS;
+ else if (ip->protocol == IPPROTO_UDP)
+ return IPCS | UDPCS;
+ WARN_ON(1); /* we need a WARN() */
+ }
+ return 0;
+}
+
+static int rtl8169_start_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ unsigned int frags, entry = tp->cur_tx % NUM_TX_DESC;
+ struct TxDesc *txd = tp->TxDescArray + entry;
+ void __iomem *ioaddr = tp->mmio_addr;
+ dma_addr_t mapping;
+ u32 status, len;
+ u32 opts1;
+ int ret = NETDEV_TX_OK;
+
+ if (unlikely(TX_BUFFS_AVAIL(tp) < skb_shinfo(skb)->nr_frags)) {
+ if (netif_msg_drv(tp)) {
+ printk(KERN_ERR
+ "%s: BUG! Tx Ring full when queue awake!\n",
+ dev->name);
+ }
+ goto err_stop;
+ }
+
+ if (unlikely(le32_to_cpu(txd->opts1) & DescOwn))
+ goto err_stop;
+
+ opts1 = DescOwn | rtl8169_tso_csum(skb, dev);
+
+ frags = rtl8169_xmit_frags(tp, skb, opts1);
+ if (frags) {
+ len = skb_headlen(skb);
+ opts1 |= FirstFrag;
+ } else {
+ len = skb->len;
+
+ if (unlikely(len < ETH_ZLEN)) {
+ if (skb_padto(skb, ETH_ZLEN))
+ goto err_update_stats;
+ len = ETH_ZLEN;
+ }
+
+ opts1 |= FirstFrag | LastFrag;
+ tp->tx_skb[entry].skb = skb;
+ }
+
+ mapping = pci_map_single(tp->pci_dev, skb->data, len, PCI_DMA_TODEVICE);
+
+ tp->tx_skb[entry].len = len;
+ txd->addr = cpu_to_le64(mapping);
+ txd->opts2 = cpu_to_le32(rtl8169_tx_vlan_tag(tp, skb));
+
+ wmb();
+
+ /* anti gcc 2.95.3 bugware (sic) */
+ status = opts1 | len | (RingEnd * !((entry + 1) % NUM_TX_DESC));
+ txd->opts1 = cpu_to_le32(status);
+
+ dev->trans_start = jiffies;
+
+ tp->cur_tx += frags + 1;
+
+ smp_wmb();
+
+ RTL_W8(TxPoll, NPQ); /* set polling bit */
+
+ if (!tp->ecdev) {
+ if (TX_BUFFS_AVAIL(tp) < MAX_SKB_FRAGS) {
+ netif_stop_queue(dev);
+ smp_rmb();
+ if (TX_BUFFS_AVAIL(tp) >= MAX_SKB_FRAGS)
+ netif_wake_queue(dev);
+ }
+ }
+
+out:
+ return ret;
+
+err_stop:
+ if (!tp->ecdev)
+ netif_stop_queue(dev);
+ ret = NETDEV_TX_BUSY;
+err_update_stats:
+ dev->stats.tx_dropped++;
+ goto out;
+}
+
+static void rtl8169_pcierr_interrupt(struct net_device *dev)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ struct pci_dev *pdev = tp->pci_dev;
+ void __iomem *ioaddr = tp->mmio_addr;
+ u16 pci_status, pci_cmd;
+
+ pci_read_config_word(pdev, PCI_COMMAND, &pci_cmd);
+ pci_read_config_word(pdev, PCI_STATUS, &pci_status);
+
+ if (netif_msg_intr(tp)) {
+ printk(KERN_ERR
+ "%s: PCI error (cmd = 0x%04x, status = 0x%04x).\n",
+ dev->name, pci_cmd, pci_status);
+ }
+
+ /*
+ * The recovery sequence below admits a very elaborated explanation:
+ * - it seems to work;
+ * - I did not see what else could be done;
+ * - it makes iop3xx happy.
+ *
+ * Feel free to adjust to your needs.
+ */
+ if (pdev->broken_parity_status)
+ pci_cmd &= ~PCI_COMMAND_PARITY;
+ else
+ pci_cmd |= PCI_COMMAND_SERR | PCI_COMMAND_PARITY;
+
+ pci_write_config_word(pdev, PCI_COMMAND, pci_cmd);
+
+ pci_write_config_word(pdev, PCI_STATUS,
+ pci_status & (PCI_STATUS_DETECTED_PARITY |
+ PCI_STATUS_SIG_SYSTEM_ERROR | PCI_STATUS_REC_MASTER_ABORT |
+ PCI_STATUS_REC_TARGET_ABORT | PCI_STATUS_SIG_TARGET_ABORT));
+
+ /* The infamous DAC f*ckup only happens at boot time */
+ if ((tp->cp_cmd & PCIDAC) && !tp->dirty_rx && !tp->cur_rx) {
+ if (netif_msg_intr(tp))
+ printk(KERN_INFO "%s: disabling PCI DAC.\n", dev->name);
+ tp->cp_cmd &= ~PCIDAC;
+ RTL_W16(CPlusCmd, tp->cp_cmd);
+ dev->features &= ~NETIF_F_HIGHDMA;
+ }
+
+ rtl8169_hw_reset(ioaddr);
+
+ rtl8169_schedule_work(dev, rtl8169_reinit_task);
+}
+
+static void rtl8169_tx_interrupt(struct net_device *dev,
+ struct rtl8169_private *tp,
+ void __iomem *ioaddr)
+{
+ unsigned int dirty_tx, tx_left;
+
+ dirty_tx = tp->dirty_tx;
+ smp_rmb();
+ tx_left = tp->cur_tx - dirty_tx;
+
+ while (tx_left > 0) {
+ unsigned int entry = dirty_tx % NUM_TX_DESC;
+ struct ring_info *tx_skb = tp->tx_skb + entry;
+ u32 len = tx_skb->len;
+ u32 status;
+
+ rmb();
+ status = le32_to_cpu(tp->TxDescArray[entry].opts1);
+ if (status & DescOwn)
+ break;
+
+ dev->stats.tx_bytes += len;
+ dev->stats.tx_packets++;
+
+ rtl8169_unmap_tx_skb(tp->pci_dev, tx_skb, tp->TxDescArray + entry);
+
+ if (status & LastFrag) {
+ if (!tp->ecdev)
+ dev_kfree_skb_irq(tx_skb->skb);
+ tx_skb->skb = NULL;
+ }
+ dirty_tx++;
+ tx_left--;
+ }
+
+ if (tp->dirty_tx != dirty_tx) {
+ tp->dirty_tx = dirty_tx;
+ smp_wmb();
+ if (!tp->ecdev && netif_queue_stopped(dev) &&
+ (TX_BUFFS_AVAIL(tp) >= MAX_SKB_FRAGS)) {
+ netif_wake_queue(dev);
+ }
+ /*
+ * 8168 hack: TxPoll requests are lost when the Tx packets are
+ * too close. Let's kick an extra TxPoll request when a burst
+ * of start_xmit activity is detected (if it is not detected,
+ * it is slow enough). -- FR
+ */
+ smp_rmb();
+ if (tp->cur_tx != dirty_tx)
+ RTL_W8(TxPoll, NPQ);
+ }
+}
+
+static inline int rtl8169_fragmented_frame(u32 status)
+{
+ return (status & (FirstFrag | LastFrag)) != (FirstFrag | LastFrag);
+}
+
+static inline void rtl8169_rx_csum(struct sk_buff *skb, struct RxDesc *desc)
+{
+ u32 opts1 = le32_to_cpu(desc->opts1);
+ u32 status = opts1 & RxProtoMask;
+
+ if (((status == RxProtoTCP) && !(opts1 & TCPFail)) ||
+ ((status == RxProtoUDP) && !(opts1 & UDPFail)) ||
+ ((status == RxProtoIP) && !(opts1 & IPFail)))
+ skb->ip_summed = CHECKSUM_UNNECESSARY;
+ else
+ skb->ip_summed = CHECKSUM_NONE;
+}
+
+static inline bool rtl8169_try_rx_copy(struct sk_buff **sk_buff,
+ struct rtl8169_private *tp, int pkt_size,
+ dma_addr_t addr)
+{
+ struct sk_buff *skb;
+ bool done = false;
+
+ if (pkt_size >= rx_copybreak)
+ goto out;
+
+ skb = netdev_alloc_skb(tp->dev, pkt_size + NET_IP_ALIGN);
+ if (!skb)
+ goto out;
+
+ pci_dma_sync_single_for_cpu(tp->pci_dev, addr, pkt_size,
+ PCI_DMA_FROMDEVICE);
+ skb_reserve(skb, NET_IP_ALIGN);
+ skb_copy_from_linear_data(*sk_buff, skb->data, pkt_size);
+ *sk_buff = skb;
+ done = true;
+out:
+ return done;
+}
+
+static int rtl8169_rx_interrupt(struct net_device *dev,
+ struct rtl8169_private *tp,
+ void __iomem *ioaddr, u32 budget)
+{
+ unsigned int cur_rx, rx_left;
+ unsigned int delta, count;
+
+ cur_rx = tp->cur_rx;
+ rx_left = NUM_RX_DESC + tp->dirty_rx - cur_rx;
+ rx_left = rtl8169_rx_quota(rx_left, budget);
+
+ for (; rx_left > 0; rx_left--, cur_rx++) {
+ unsigned int entry = cur_rx % NUM_RX_DESC;
+ struct RxDesc *desc = tp->RxDescArray + entry;
+ u32 status;
+
+ rmb();
+ status = le32_to_cpu(desc->opts1);
+
+ if (status & DescOwn)
+ break;
+ if (unlikely(status & RxRES)) {
+ if (netif_msg_rx_err(tp)) {
+ printk(KERN_INFO
+ "%s: Rx ERROR. status = %08x\n",
+ dev->name, status);
+ }
+ dev->stats.rx_errors++;
+ if (status & (RxRWT | RxRUNT))
+ dev->stats.rx_length_errors++;
+ if (status & RxCRC)
+ dev->stats.rx_crc_errors++;
+ if (status & RxFOVF) {
+ if (!tp->ecdev)
+ 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 (tp->ecdev) {
+ pci_dma_sync_single_for_cpu(pdev, addr, pkt_size,
+ PCI_DMA_FROMDEVICE);
+
+ ecdev_receive(tp->ecdev, skb->data, pkt_size);
+
+ pci_dma_sync_single_for_device(pdev, addr,
+ pkt_size, PCI_DMA_FROMDEVICE);
+ rtl8169_mark_to_asic(desc, tp->rx_buf_sz);
+
+ // No need to detect link status as
+ // long as frames are received: Reset watchdog.
+ tp->ec_watchdog_jiffies = jiffies;
+ } else {
+ if (rtl8169_try_rx_copy(&skb, tp, pkt_size, addr)) {
+ pci_dma_sync_single_for_device(pdev, addr,
+ pkt_size, PCI_DMA_FROMDEVICE);
+ rtl8169_mark_to_asic(desc, tp->rx_buf_sz);
+ } else {
+ pci_unmap_single(pdev, addr, pkt_size,
+ PCI_DMA_FROMDEVICE);
+ tp->Rx_skbuff[entry] = NULL;
+ }
+
+ skb_put(skb, pkt_size);
+ skb->protocol = eth_type_trans(skb, dev);
+
+ if (rtl8169_rx_vlan_skb(tp, desc, skb) < 0)
+ rtl8169_rx_skb(skb);
+ }
+
+ dev->last_rx = jiffies;
+ dev->stats.rx_bytes += pkt_size;
+ dev->stats.rx_packets++;
+ }
+
+ /* Work around for AMD plateform. */
+ if ((desc->opts2 & 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;
+
+ if (tp->ecdev) {
+ /* descriptors are cleaned up immediately. */
+ tp->dirty_rx = tp->cur_rx;
+ } else {
+ delta = rtl8169_rx_fill(tp, dev, tp->dirty_rx, tp->cur_rx);
+ if (!delta && count && netif_msg_intr(tp))
+ printk(KERN_INFO "%s: no Rx buffer allocated\n", dev->name);
+ tp->dirty_rx += delta;
+
+ /*
+ * FIXME: until there is periodic timer to try and refill the ring,
+ * a temporary shortage may definitely kill the Rx process.
+ * - disable the asic to try and avoid an overflow and kick it again
+ * after refill ?
+ * - how do others driver handle this condition (Uh oh...).
+ */
+ if ((tp->dirty_rx + NUM_RX_DESC == tp->cur_rx) && netif_msg_intr(tp))
+ printk(KERN_EMERG "%s: Rx buffers exhausted\n", dev->name);
+ }
+
+ return count;
+}
+
+static irqreturn_t rtl8169_interrupt(int irq, void *dev_instance)
+{
+ struct net_device *dev = dev_instance;
+ struct rtl8169_private *tp = netdev_priv(dev);
+ int boguscnt = max_interrupt_work;
+ void __iomem *ioaddr = tp->mmio_addr;
+ int status;
+ int handled = 0;
+
+ do {
+ status = RTL_R16(IntrStatus);
+
+ /* hotplug/major error/no more work/shared irq */
+ if ((status == 0xFFFF) || !status)
+ break;
+
+ handled = 1;
+
+ if (unlikely(!tp->ecdev && !netif_running(dev))) {
+ rtl8169_asic_down(ioaddr);
+ goto out;
+ }
+
+ status &= tp->intr_mask;
+ RTL_W16(IntrStatus,
+ (status & RxFIFOOver) ? (status | RxOverflow) : status);
+
+ if (!(status & tp->intr_event))
+ break;
+
+ /* Work around for rx fifo overflow */
+ if (!tp->ecdev && unlikely(status & RxFIFOOver) &&
+ (tp->mac_version == RTL_GIGA_MAC_VER_11)) {
+ netif_stop_queue(dev);
+ rtl8169_tx_timeout(dev);
+ break;
+ }
+
+ if (unlikely(!tp->ecdev && (status & SYSErr))) {
+ rtl8169_pcierr_interrupt(dev);
+ break;
+ }
+
+ if (status & LinkChg)
+ rtl8169_check_link_status(dev, tp, ioaddr);
+
+#ifdef CONFIG_R8169_NAPI
+ if (tp->ecdev) {
+ /* Rx interrupt */
+ if (status & (RxOK | RxOverflow | RxFIFOOver))
+ rtl8169_rx_interrupt(dev, tp, ioaddr, ~(u32)0);
+
+ /* Tx interrupt */
+ if (status & (TxOK | TxErr))
+ rtl8169_tx_interrupt(dev, tp, ioaddr);
+
+ } else if (status & tp->napi_event) {
+ RTL_W16(IntrMask, tp->intr_event & ~tp->napi_event);
+ tp->intr_mask = ~tp->napi_event;
+
+ if (likely(netif_rx_schedule_prep(dev, &tp->napi)))
+ __netif_rx_schedule(dev, &tp->napi);
+ else if (netif_msg_intr(tp)) {
+ printk(KERN_INFO "%s: interrupt %04x in poll\n",
+ dev->name, status);
+ }
+ }
+ break;
+#else
+ /* Rx interrupt */
+ if (status & (RxOK | RxOverflow | RxFIFOOver))
+ rtl8169_rx_interrupt(dev, tp, ioaddr, ~(u32)0);
+
+ /* Tx interrupt */
+ if (status & (TxOK | TxErr))
+ rtl8169_tx_interrupt(dev, tp, ioaddr);
+#endif
+
+ boguscnt--;
+ } while (boguscnt > 0);
+
+ if (!tp->ecdev) {
+ if (boguscnt <= 0) {
+ if (netif_msg_intr(tp) && net_ratelimit() ) {
+ printk(KERN_WARNING
+ "%s: Too much work at interrupt!\n", dev->name);
+ }
+ /* Clear all interrupt sources. */
+ RTL_W16(IntrStatus, 0xffff);
+ }
+ }
+out:
+ return IRQ_RETVAL(handled);
+}
+
+#ifdef CONFIG_R8169_NAPI
+static int rtl8169_poll(struct napi_struct *napi, int budget)
+{
+ struct rtl8169_private *tp = container_of(napi, struct rtl8169_private, napi);
+ struct net_device *dev = tp->dev;
+ void __iomem *ioaddr = tp->mmio_addr;
+ int work_done;
+
+ work_done = rtl8169_rx_interrupt(dev, tp, ioaddr, (u32) budget);
+ rtl8169_tx_interrupt(dev, tp, ioaddr);
+
+ if (work_done < budget) {
+ netif_rx_complete(dev, napi);
+ tp->intr_mask = 0xffff;
+ /*
+ * 20040426: the barrier is not strictly required but the
+ * behavior of the irq handler could be less predictable
+ * without it. Btw, the lack of flush for the posted pci
+ * write is safe - FR
+ */
+ smp_wmb();
+ RTL_W16(IntrMask, tp->intr_event);
+ }
+
+ return work_done;
+}
+#endif
+
+static void rtl8169_down(struct net_device *dev)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->mmio_addr;
+ unsigned int intrmask;
+
+ rtl8169_delete_timer(dev);
+
+ if (!tp->ecdev) {
+ netif_stop_queue(dev);
+
+#ifdef CONFIG_R8169_NAPI
+ napi_disable(&tp->napi);
+#endif
+ }
+
+core_down:
+ if (!tp->ecdev)
+ spin_lock_irq(&tp->lock);
+
+ rtl8169_asic_down(ioaddr);
+
+ /* Update the error counts. */
+ dev->stats.rx_missed_errors += RTL_R32(RxMissed);
+ RTL_W32(RxMissed, 0);
+
+ if (!tp->ecdev)
+ spin_unlock_irq(&tp->lock);
+
+ if (!tp->ecdev)
+ 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;
+
+ rtl8169_down(dev);
+
+ if (!tp->ecdev)
+ free_irq(dev->irq, dev);
+
+ pci_free_consistent(pdev, R8169_RX_RING_BYTES, tp->RxDescArray,
+ tp->RxPhyAddr);
+ pci_free_consistent(pdev, R8169_TX_RING_BYTES, tp->TxDescArray,
+ tp->TxPhyAddr);
+ tp->TxDescArray = NULL;
+ tp->RxDescArray = NULL;
+
+ return 0;
+}
+
+static void rtl_set_rx_mode(struct net_device *dev)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->mmio_addr;
+ unsigned long flags;
+ u32 mc_filter[2]; /* Multicast hash filter */
+ int rx_mode;
+ u32 tmp = 0;
+
+ if (dev->flags & IFF_PROMISC) {
+ /* Unconditionally log net taps. */
+ if (netif_msg_link(tp)) {
+ printk(KERN_NOTICE "%s: Promiscuous mode enabled.\n",
+ dev->name);
+ }
+ rx_mode =
+ AcceptBroadcast | AcceptMulticast | AcceptMyPhys |
+ AcceptAllPhys;
+ mc_filter[1] = mc_filter[0] = 0xffffffff;
+ } else if ((dev->mc_count > multicast_filter_limit)
+ || (dev->flags & IFF_ALLMULTI)) {
+ /* Too many to filter perfectly -- accept all multicasts. */
+ rx_mode = AcceptBroadcast | AcceptMulticast | AcceptMyPhys;
+ mc_filter[1] = mc_filter[0] = 0xffffffff;
+ } else {
+ struct dev_mc_list *mclist;
+ unsigned int i;
+
+ rx_mode = AcceptBroadcast | AcceptMyPhys;
+ mc_filter[1] = mc_filter[0] = 0;
+ for (i = 0, mclist = dev->mc_list; mclist && i < dev->mc_count;
+ i++, mclist = mclist->next) {
+ int bit_nr = ether_crc(ETH_ALEN, mclist->dmi_addr) >> 26;
+ mc_filter[bit_nr >> 5] |= 1 << (bit_nr & 31);
+ rx_mode |= AcceptMulticast;
+ }
+ }
+
+ spin_lock_irqsave(&tp->lock, flags);
+
+ tmp = rtl8169_rx_config | rx_mode |
+ (RTL_R32(RxConfig) & rtl_chip_info[tp->chipset].RxConfigMask);
+
+ if ((tp->mac_version == RTL_GIGA_MAC_VER_11) ||
+ (tp->mac_version == RTL_GIGA_MAC_VER_12) ||
+ (tp->mac_version == RTL_GIGA_MAC_VER_13) ||
+ (tp->mac_version == RTL_GIGA_MAC_VER_14) ||
+ (tp->mac_version == RTL_GIGA_MAC_VER_15) ||
+ (tp->mac_version == RTL_GIGA_MAC_VER_16) ||
+ (tp->mac_version == RTL_GIGA_MAC_VER_17)) {
+ mc_filter[0] = 0xffffffff;
+ mc_filter[1] = 0xffffffff;
+ }
+
+ RTL_W32(MAR0 + 0, mc_filter[0]);
+ RTL_W32(MAR0 + 4, mc_filter[1]);
+
+ RTL_W32(RxConfig, tmp);
+
+ spin_unlock_irqrestore(&tp->lock, flags);
+}
+
+/**
+ * rtl8169_get_stats - Get rtl8169 read/write statistics
+ * @dev: The Ethernet Device to get statistics for
+ *
+ * Get TX/RX statistics for rtl8169
+ */
+static struct net_device_stats *rtl8169_get_stats(struct net_device *dev)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->mmio_addr;
+ unsigned long flags;
+
+ if (netif_running(dev)) {
+ spin_lock_irqsave(&tp->lock, flags);
+ dev->stats.rx_missed_errors += RTL_R32(RxMissed);
+ RTL_W32(RxMissed, 0);
+ spin_unlock_irqrestore(&tp->lock, flags);
+ }
+
+ return &dev->stats;
+}
+
+#ifdef CONFIG_PM
+
+static int rtl8169_suspend(struct pci_dev *pdev, pm_message_t state)
+{
+ struct net_device *dev = pci_get_drvdata(pdev);
+ struct rtl8169_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->mmio_addr;
+
+ if (tp->ecdev)
+ return;
+
+ if (!netif_running(dev))
+ goto out_pci_suspend;
+
+ netif_device_detach(dev);
+ netif_stop_queue(dev);
+
+ spin_lock_irq(&tp->lock);
+
+ rtl8169_asic_down(ioaddr);
+
+ dev->stats.rx_missed_errors += RTL_R32(RxMissed);
+ RTL_W32(RxMissed, 0);
+
+ spin_unlock_irq(&tp->lock);
+
+out_pci_suspend:
+ pci_save_state(pdev);
+ pci_enable_wake(pdev, pci_choose_state(pdev, state),
+ (tp->features & RTL_FEATURE_WOL) ? 1 : 0);
+ pci_set_power_state(pdev, pci_choose_state(pdev, state));
+
+ return 0;
+}
+
+static int rtl8169_resume(struct pci_dev *pdev)
+{
+ struct net_device *dev = pci_get_drvdata(pdev);
+ struct rtl8169_private *tp = netdev_priv(dev);
+
+ if (tp->ecdev)
+ return;
+
+ pci_set_power_state(pdev, PCI_D0);
+ pci_restore_state(pdev);
+ pci_enable_wake(pdev, PCI_D0, 0);
+
+ if (!netif_running(dev))
+ goto out;
+
+ netif_device_attach(dev);
+
+ rtl8169_schedule_work(dev, rtl8169_reset_task);
+out:
+ return 0;
+}
+
+#endif /* CONFIG_PM */
+
+static struct pci_driver rtl8169_pci_driver = {
+ .name = MODULENAME,
+ .id_table = rtl8169_pci_tbl,
+ .probe = rtl8169_init_one,
+ .remove = __devexit_p(rtl8169_remove_one),
+#ifdef CONFIG_PM
+ .suspend = rtl8169_suspend,
+ .resume = rtl8169_resume,
+#endif
+};
+
+static int __init rtl8169_init_module(void)
+{
+ return pci_register_driver(&rtl8169_pci_driver);
+}
+
+static void __exit rtl8169_cleanup_module(void)
+{
+ pci_unregister_driver(&rtl8169_pci_driver);
+}
+
+module_init(rtl8169_init_module);
+module_exit(rtl8169_cleanup_module);
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/devices/r8169-2.6.24-orig.c Fri Jun 19 11:54:46 2009 +0000
@@ -0,0 +1,3209 @@
+/*
+ * r8169.c: RealTek 8169/8168/8101 ethernet driver.
+ *
+ * Copyright (c) 2002 ShuChen <shuchen@realtek.com.tw>
+ * Copyright (c) 2003 - 2007 Francois Romieu <romieu@fr.zoreil.com>
+ * Copyright (c) a lot of people too. Please respect their work.
+ *
+ * See MAINTAINERS file for support contact information.
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/pci.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/delay.h>
+#include <linux/ethtool.h>
+#include <linux/mii.h>
+#include <linux/if_vlan.h>
+#include <linux/crc32.h>
+#include <linux/in.h>
+#include <linux/ip.h>
+#include <linux/tcp.h>
+#include <linux/init.h>
+#include <linux/dma-mapping.h>
+
+#include <asm/system.h>
+#include <asm/io.h>
+#include <asm/irq.h>
+
+#ifdef CONFIG_R8169_NAPI
+#define NAPI_SUFFIX "-NAPI"
+#else
+#define NAPI_SUFFIX ""
+#endif
+
+#define RTL8169_VERSION "2.2LK" NAPI_SUFFIX
+#define MODULENAME "r8169"
+#define PFX MODULENAME ": "
+
+#ifdef RTL8169_DEBUG
+#define assert(expr) \
+ if (!(expr)) { \
+ printk( "Assertion failed! %s,%s,%s,line=%d\n", \
+ #expr,__FILE__,__FUNCTION__,__LINE__); \
+ }
+#define dprintk(fmt, args...) \
+ do { printk(KERN_DEBUG PFX fmt, ## args); } while (0)
+#else
+#define assert(expr) do {} while (0)
+#define dprintk(fmt, args...) do {} while (0)
+#endif /* RTL8169_DEBUG */
+
+#define R8169_MSG_DEFAULT \
+ (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_IFUP | NETIF_MSG_IFDOWN)
+
+#define TX_BUFFS_AVAIL(tp) \
+ (tp->dirty_tx + NUM_TX_DESC - tp->cur_tx - 1)
+
+#ifdef CONFIG_R8169_NAPI
+#define rtl8169_rx_skb netif_receive_skb
+#define rtl8169_rx_hwaccel_skb vlan_hwaccel_receive_skb
+#define rtl8169_rx_quota(count, quota) min(count, quota)
+#else
+#define rtl8169_rx_skb netif_rx
+#define rtl8169_rx_hwaccel_skb vlan_hwaccel_rx
+#define rtl8169_rx_quota(count, quota) count
+#endif
+
+/* Maximum events (Rx packets, etc.) to handle at each interrupt. */
+static const int max_interrupt_work = 20;
+
+/* Maximum number of multicast addresses to filter (vs. Rx-all-multicast).
+ The RTL chips use a 64 element hash table based on the Ethernet CRC. */
+static const int multicast_filter_limit = 32;
+
+/* MAC address length */
+#define MAC_ADDR_LEN 6
+
+#define RX_FIFO_THRESH 7 /* 7 means NO threshold, Rx buffer level before first PCI xfer. */
+#define RX_DMA_BURST 6 /* Maximum PCI burst, '6' is 1024 */
+#define TX_DMA_BURST 6 /* Maximum PCI burst, '6' is 1024 */
+#define EarlyTxThld 0x3F /* 0x3F means NO early transmit */
+#define RxPacketMaxSize 0x3FE8 /* 16K - 1 - ETH_HLEN - VLAN - CRC... */
+#define SafeMtu 0x1c20 /* ... actually life sucks beyond ~7k */
+#define InterFrameGap 0x03 /* 3 means InterFrameGap = the shortest one */
+
+#define R8169_REGS_SIZE 256
+#define R8169_NAPI_WEIGHT 64
+#define NUM_TX_DESC 64 /* Number of Tx descriptor registers */
+#define NUM_RX_DESC 256 /* Number of Rx descriptor registers */
+#define RX_BUF_SIZE 1536 /* Rx Buffer size */
+#define R8169_TX_RING_BYTES (NUM_TX_DESC * sizeof(struct TxDesc))
+#define R8169_RX_RING_BYTES (NUM_RX_DESC * sizeof(struct RxDesc))
+
+#define RTL8169_TX_TIMEOUT (6*HZ)
+#define RTL8169_PHY_TIMEOUT (10*HZ)
+
+/* write/read MMIO register */
+#define RTL_W8(reg, val8) writeb ((val8), ioaddr + (reg))
+#define RTL_W16(reg, val16) writew ((val16), ioaddr + (reg))
+#define RTL_W32(reg, val32) writel ((val32), ioaddr + (reg))
+#define RTL_R8(reg) readb (ioaddr + (reg))
+#define RTL_R16(reg) readw (ioaddr + (reg))
+#define RTL_R32(reg) ((unsigned long) readl (ioaddr + (reg)))
+
+enum mac_version {
+ RTL_GIGA_MAC_VER_01 = 0x01, // 8169
+ RTL_GIGA_MAC_VER_02 = 0x02, // 8169S
+ RTL_GIGA_MAC_VER_03 = 0x03, // 8110S
+ RTL_GIGA_MAC_VER_04 = 0x04, // 8169SB
+ RTL_GIGA_MAC_VER_05 = 0x05, // 8110SCd
+ RTL_GIGA_MAC_VER_06 = 0x06, // 8110SCe
+ RTL_GIGA_MAC_VER_11 = 0x0b, // 8168Bb
+ RTL_GIGA_MAC_VER_12 = 0x0c, // 8168Be
+ RTL_GIGA_MAC_VER_13 = 0x0d, // 8101Eb
+ RTL_GIGA_MAC_VER_14 = 0x0e, // 8101 ?
+ RTL_GIGA_MAC_VER_15 = 0x0f, // 8101 ?
+ RTL_GIGA_MAC_VER_16 = 0x11, // 8101Ec
+ RTL_GIGA_MAC_VER_17 = 0x10, // 8168Bf
+ RTL_GIGA_MAC_VER_18 = 0x12, // 8168CP
+ RTL_GIGA_MAC_VER_19 = 0x13, // 8168C
+ RTL_GIGA_MAC_VER_20 = 0x14 // 8168C
+};
+
+#define _R(NAME,MAC,MASK) \
+ { .name = NAME, .mac_version = MAC, .RxConfigMask = MASK }
+
+static const struct {
+ const char *name;
+ u8 mac_version;
+ u32 RxConfigMask; /* Clears the bits supported by this chip */
+} rtl_chip_info[] = {
+ _R("RTL8169", RTL_GIGA_MAC_VER_01, 0xff7e1880), // 8169
+ _R("RTL8169s", RTL_GIGA_MAC_VER_02, 0xff7e1880), // 8169S
+ _R("RTL8110s", RTL_GIGA_MAC_VER_03, 0xff7e1880), // 8110S
+ _R("RTL8169sb/8110sb", RTL_GIGA_MAC_VER_04, 0xff7e1880), // 8169SB
+ _R("RTL8169sc/8110sc", RTL_GIGA_MAC_VER_05, 0xff7e1880), // 8110SCd
+ _R("RTL8169sc/8110sc", RTL_GIGA_MAC_VER_06, 0xff7e1880), // 8110SCe
+ _R("RTL8168b/8111b", RTL_GIGA_MAC_VER_11, 0xff7e1880), // PCI-E
+ _R("RTL8168b/8111b", RTL_GIGA_MAC_VER_12, 0xff7e1880), // PCI-E
+ _R("RTL8101e", RTL_GIGA_MAC_VER_13, 0xff7e1880), // PCI-E 8139
+ _R("RTL8100e", RTL_GIGA_MAC_VER_14, 0xff7e1880), // PCI-E 8139
+ _R("RTL8100e", RTL_GIGA_MAC_VER_15, 0xff7e1880), // PCI-E 8139
+ _R("RTL8168b/8111b", RTL_GIGA_MAC_VER_17, 0xff7e1880), // PCI-E
+ _R("RTL8101e", RTL_GIGA_MAC_VER_16, 0xff7e1880), // PCI-E
+ _R("RTL8168cp/8111cp", RTL_GIGA_MAC_VER_18, 0xff7e1880), // PCI-E
+ _R("RTL8168c/8111c", RTL_GIGA_MAC_VER_19, 0xff7e1880), // PCI-E
+ _R("RTL8168c/8111c", RTL_GIGA_MAC_VER_20, 0xff7e1880) // PCI-E
+};
+#undef _R
+
+enum cfg_version {
+ RTL_CFG_0 = 0x00,
+ RTL_CFG_1,
+ RTL_CFG_2
+};
+
+static void rtl_hw_start_8169(struct net_device *);
+static void rtl_hw_start_8168(struct net_device *);
+static void rtl_hw_start_8101(struct net_device *);
+
+static struct pci_device_id rtl8169_pci_tbl[] = {
+ { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8129), 0, 0, RTL_CFG_0 },
+ { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8136), 0, 0, RTL_CFG_2 },
+ { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8167), 0, 0, RTL_CFG_0 },
+ { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8168), 0, 0, RTL_CFG_1 },
+ { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8169), 0, 0, RTL_CFG_0 },
+ { PCI_DEVICE(PCI_VENDOR_ID_DLINK, 0x4300), 0, 0, RTL_CFG_0 },
+ { PCI_DEVICE(PCI_VENDOR_ID_AT, 0xc107), 0, 0, RTL_CFG_0 },
+ { PCI_DEVICE(0x16ec, 0x0116), 0, 0, RTL_CFG_0 },
+ { PCI_VENDOR_ID_LINKSYS, 0x1032,
+ PCI_ANY_ID, 0x0024, 0, 0, RTL_CFG_0 },
+ { 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,
+ TBICSR = 0x64,
+ TBI_ANAR = 0x68,
+ TBI_LPAR = 0x6a,
+ PHYstatus = 0x6c,
+ RxMaxSize = 0xda,
+ CPlusCmd = 0xe0,
+ IntrMitigate = 0xe2,
+ RxDescAddrLow = 0xe4,
+ RxDescAddrHigh = 0xe8,
+ EarlyTxThres = 0xec,
+ FuncEvent = 0xf0,
+ FuncEventMask = 0xf4,
+ FuncPresetState = 0xf8,
+ FuncForceEvent = 0xfc,
+};
+
+enum rtl_register_content {
+ /* InterruptStatusBits */
+ SYSErr = 0x8000,
+ PCSTimeout = 0x4000,
+ SWInt = 0x0100,
+ TxDescUnavail = 0x0080,
+ RxFIFOOver = 0x0040,
+ LinkChg = 0x0020,
+ RxOverflow = 0x0010,
+ TxErr = 0x0008,
+ TxOK = 0x0004,
+ RxErr = 0x0002,
+ RxOK = 0x0001,
+
+ /* RxStatusDesc */
+ RxFOVF = (1 << 23),
+ RxRWT = (1 << 22),
+ RxRES = (1 << 21),
+ RxRUNT = (1 << 20),
+ RxCRC = (1 << 19),
+
+ /* ChipCmdBits */
+ CmdReset = 0x10,
+ CmdRxEnb = 0x08,
+ CmdTxEnb = 0x04,
+ RxBufEmpty = 0x01,
+
+ /* TXPoll register p.5 */
+ HPQ = 0x80, /* Poll cmd on the high prio queue */
+ NPQ = 0x40, /* Poll cmd on the low prio queue */
+ FSWInt = 0x01, /* Forced software interrupt */
+
+ /* Cfg9346Bits */
+ Cfg9346_Lock = 0x00,
+ Cfg9346_Unlock = 0xc0,
+
+ /* rx_mode_bits */
+ AcceptErr = 0x20,
+ AcceptRunt = 0x10,
+ AcceptBroadcast = 0x08,
+ AcceptMulticast = 0x04,
+ AcceptMyPhys = 0x02,
+ AcceptAllPhys = 0x01,
+
+ /* RxConfigBits */
+ RxCfgFIFOShift = 13,
+ RxCfgDMAShift = 8,
+
+ /* TxConfigBits */
+ TxInterFrameGapShift = 24,
+ TxDMAShift = 8, /* DMA burst value (0-7) is shift this many bits */
+
+ /* Config1 register p.24 */
+ MSIEnable = (1 << 5), /* Enable Message Signaled Interrupt */
+ PMEnable = (1 << 0), /* Power Management Enable */
+
+ /* Config2 register p. 25 */
+ PCI_Clock_66MHz = 0x01,
+ PCI_Clock_33MHz = 0x00,
+
+ /* Config3 register p.25 */
+ MagicPacket = (1 << 5), /* Wake up when receives a Magic Packet */
+ LinkUp = (1 << 4), /* Wake up when the cable connection is re-established */
+
+ /* Config5 register p.27 */
+ BWF = (1 << 6), /* Accept Broadcast wakeup frame */
+ MWF = (1 << 5), /* Accept Multicast wakeup frame */
+ UWF = (1 << 4), /* Accept Unicast wakeup frame */
+ LanWake = (1 << 1), /* LanWake enable/disable */
+ PMEStatus = (1 << 0), /* PME status can be reset by PCI RST# */
+
+ /* TBICSR p.28 */
+ TBIReset = 0x80000000,
+ TBILoopback = 0x40000000,
+ TBINwEnable = 0x20000000,
+ TBINwRestart = 0x10000000,
+ TBILinkOk = 0x02000000,
+ TBINwComplete = 0x01000000,
+
+ /* CPlusCmd p.31 */
+ PktCntrDisable = (1 << 7), // 8168
+ RxVlan = (1 << 6),
+ RxChkSum = (1 << 5),
+ PCIDAC = (1 << 4),
+ PCIMulRW = (1 << 3),
+ INTT_0 = 0x0000, // 8168
+ INTT_1 = 0x0001, // 8168
+ INTT_2 = 0x0002, // 8168
+ INTT_3 = 0x0003, // 8168
+
+ /* rtl8169_PHYstatus */
+ TBI_Enable = 0x80,
+ TxFlowCtrl = 0x40,
+ RxFlowCtrl = 0x20,
+ _1000bpsF = 0x10,
+ _100bps = 0x08,
+ _10bps = 0x04,
+ LinkStatus = 0x02,
+ FullDup = 0x01,
+
+ /* _TBICSRBit */
+ TBILinkOK = 0x02000000,
+
+ /* DumpCounterCommand */
+ CounterDump = 0x8,
+};
+
+enum desc_status_bit {
+ DescOwn = (1 << 31), /* Descriptor is owned by NIC */
+ RingEnd = (1 << 30), /* End of descriptor ring */
+ FirstFrag = (1 << 29), /* First segment of a packet */
+ LastFrag = (1 << 28), /* Final segment of a packet */
+
+ /* Tx private */
+ LargeSend = (1 << 27), /* TCP Large Send Offload (TSO) */
+ MSSShift = 16, /* MSS value position */
+ MSSMask = 0xfff, /* MSS value + LargeSend bit: 12 bits */
+ IPCS = (1 << 18), /* Calculate IP checksum */
+ UDPCS = (1 << 17), /* Calculate UDP/IP checksum */
+ TCPCS = (1 << 16), /* Calculate TCP/IP checksum */
+ TxVlanTag = (1 << 17), /* Add VLAN tag */
+
+ /* Rx private */
+ PID1 = (1 << 18), /* Protocol ID bit 1/2 */
+ PID0 = (1 << 17), /* Protocol ID bit 2/2 */
+
+#define RxProtoUDP (PID1)
+#define RxProtoTCP (PID0)
+#define RxProtoIP (PID1 | PID0)
+#define RxProtoMask RxProtoIP
+
+ IPFail = (1 << 16), /* IP checksum failed */
+ UDPFail = (1 << 15), /* UDP/IP checksum failed */
+ TCPFail = (1 << 14), /* TCP/IP checksum failed */
+ RxVlanTag = (1 << 16), /* VLAN tag available */
+};
+
+#define RsvdMask 0x3fffc000
+
+struct TxDesc {
+ __le32 opts1;
+ __le32 opts2;
+ __le64 addr;
+};
+
+struct RxDesc {
+ __le32 opts1;
+ __le32 opts2;
+ __le64 addr;
+};
+
+struct ring_info {
+ struct sk_buff *skb;
+ u32 len;
+ u8 __pad[sizeof(void *) - sizeof(u32)];
+};
+
+enum features {
+ RTL_FEATURE_WOL = (1 << 0),
+ RTL_FEATURE_MSI = (1 << 1),
+};
+
+struct rtl8169_private {
+ void __iomem *mmio_addr; /* memory map physical address */
+ struct pci_dev *pci_dev; /* Index of PCI device */
+ struct net_device *dev;
+#ifdef CONFIG_R8169_NAPI
+ struct napi_struct napi;
+#endif
+ spinlock_t lock; /* spin lock flag */
+ u32 msg_enable;
+ int chipset;
+ int mac_version;
+ u32 cur_rx; /* Index into the Rx descriptor buffer of next Rx pkt. */
+ u32 cur_tx; /* Index into the Tx descriptor buffer of next Rx pkt. */
+ u32 dirty_rx;
+ u32 dirty_tx;
+ struct TxDesc *TxDescArray; /* 256-aligned Tx descriptor ring */
+ struct RxDesc *RxDescArray; /* 256-aligned Rx descriptor ring */
+ dma_addr_t TxPhyAddr;
+ dma_addr_t RxPhyAddr;
+ struct sk_buff *Rx_skbuff[NUM_RX_DESC]; /* Rx data buffers */
+ struct ring_info tx_skb[NUM_TX_DESC]; /* Tx data buffers */
+ unsigned align;
+ unsigned rx_buf_sz;
+ struct timer_list timer;
+ u16 cp_cmd;
+ u16 intr_event;
+ u16 napi_event;
+ u16 intr_mask;
+ int phy_auto_nego_reg;
+ int phy_1000_ctrl_reg;
+#ifdef CONFIG_R8169_VLAN
+ struct vlan_group *vlgrp;
+#endif
+ int (*set_speed)(struct net_device *, u8 autoneg, u16 speed, u8 duplex);
+ void (*get_settings)(struct net_device *, struct ethtool_cmd *);
+ void (*phy_reset_enable)(void __iomem *);
+ void (*hw_start)(struct net_device *);
+ unsigned int (*phy_reset_pending)(void __iomem *);
+ unsigned int (*link_ok)(void __iomem *);
+ struct delayed_work task;
+ unsigned features;
+};
+
+MODULE_AUTHOR("Realtek and the Linux r8169 crew <netdev@vger.kernel.org>");
+MODULE_DESCRIPTION("RealTek RTL-8169 Gigabit Ethernet driver");
+module_param(rx_copybreak, int, 0);
+MODULE_PARM_DESC(rx_copybreak, "Copy breakpoint for copy-only-tiny-frames");
+module_param(use_dac, int, 0);
+MODULE_PARM_DESC(use_dac, "Enable PCI DAC. Unsafe on 32 bit PCI slot.");
+module_param_named(debug, debug.msg_enable, int, 0);
+MODULE_PARM_DESC(debug, "Debug verbosity level (0=none, ..., 16=all)");
+MODULE_LICENSE("GPL");
+MODULE_VERSION(RTL8169_VERSION);
+
+static int rtl8169_open(struct net_device *dev);
+static int rtl8169_start_xmit(struct sk_buff *skb, struct net_device *dev);
+static irqreturn_t rtl8169_interrupt(int irq, void *dev_instance);
+static int rtl8169_init_ring(struct net_device *dev);
+static void rtl_hw_start(struct net_device *dev);
+static int rtl8169_close(struct net_device *dev);
+static void rtl_set_rx_mode(struct net_device *dev);
+static void rtl8169_tx_timeout(struct net_device *dev);
+static struct net_device_stats *rtl8169_get_stats(struct net_device *dev);
+static int rtl8169_rx_interrupt(struct net_device *, struct rtl8169_private *,
+ void __iomem *, u32 budget);
+static int rtl8169_change_mtu(struct net_device *dev, int new_mtu);
+static void rtl8169_down(struct net_device *dev);
+static void rtl8169_rx_clear(struct rtl8169_private *tp);
+
+#ifdef CONFIG_R8169_NAPI
+static int rtl8169_poll(struct napi_struct *napi, int budget);
+#endif
+
+static const unsigned int rtl8169_rx_config =
+ (RX_FIFO_THRESH << RxCfgFIFOShift) | (RX_DMA_BURST << RxCfgDMAShift);
+
+static void mdio_write(void __iomem *ioaddr, int reg_addr, int value)
+{
+ int i;
+
+ RTL_W32(PHYAR, 0x80000000 | (reg_addr & 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 rtl8169_irq_mask_and_ack(void __iomem *ioaddr)
+{
+ RTL_W16(IntrMask, 0x0000);
+
+ RTL_W16(IntrStatus, 0xffff);
+}
+
+static void rtl8169_asic_down(void __iomem *ioaddr)
+{
+ RTL_W8(ChipCmd, 0x00);
+ rtl8169_irq_mask_and_ack(ioaddr);
+ RTL_R16(CPlusCmd);
+}
+
+static unsigned int rtl8169_tbi_reset_pending(void __iomem *ioaddr)
+{
+ return RTL_R32(TBICSR) & TBIReset;
+}
+
+static unsigned int rtl8169_xmii_reset_pending(void __iomem *ioaddr)
+{
+ return mdio_read(ioaddr, MII_BMCR) & BMCR_RESET;
+}
+
+static unsigned int rtl8169_tbi_link_ok(void __iomem *ioaddr)
+{
+ return RTL_R32(TBICSR) & TBILinkOk;
+}
+
+static unsigned int rtl8169_xmii_link_ok(void __iomem *ioaddr)
+{
+ return RTL_R8(PHYstatus) & LinkStatus;
+}
+
+static void rtl8169_tbi_reset_enable(void __iomem *ioaddr)
+{
+ RTL_W32(TBICSR, RTL_R32(TBICSR) | TBIReset);
+}
+
+static void rtl8169_xmii_reset_enable(void __iomem *ioaddr)
+{
+ unsigned int val;
+
+ val = mdio_read(ioaddr, MII_BMCR) | BMCR_RESET;
+ mdio_write(ioaddr, MII_BMCR, val & 0xffff);
+}
+
+static void rtl8169_check_link_status(struct net_device *dev,
+ struct rtl8169_private *tp,
+ void __iomem *ioaddr)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&tp->lock, flags);
+ if (tp->link_ok(ioaddr)) {
+ netif_carrier_on(dev);
+ if (netif_msg_ifup(tp))
+ printk(KERN_INFO PFX "%s: link up\n", dev->name);
+ } else {
+ if (netif_msg_ifdown(tp))
+ printk(KERN_INFO PFX "%s: link down\n", dev->name);
+ netif_carrier_off(dev);
+ }
+ spin_unlock_irqrestore(&tp->lock, flags);
+}
+
+static void rtl8169_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->mmio_addr;
+ u8 options;
+
+ wol->wolopts = 0;
+
+#define WAKE_ANY (WAKE_PHY | WAKE_MAGIC | WAKE_UCAST | WAKE_BCAST | WAKE_MCAST)
+ wol->supported = WAKE_ANY;
+
+ spin_lock_irq(&tp->lock);
+
+ options = RTL_R8(Config1);
+ if (!(options & PMEnable))
+ goto out_unlock;
+
+ options = RTL_R8(Config3);
+ if (options & LinkUp)
+ wol->wolopts |= WAKE_PHY;
+ if (options & MagicPacket)
+ wol->wolopts |= WAKE_MAGIC;
+
+ options = RTL_R8(Config5);
+ if (options & UWF)
+ wol->wolopts |= WAKE_UCAST;
+ if (options & BWF)
+ wol->wolopts |= WAKE_BCAST;
+ if (options & MWF)
+ wol->wolopts |= WAKE_MCAST;
+
+out_unlock:
+ spin_unlock_irq(&tp->lock);
+}
+
+static int rtl8169_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->mmio_addr;
+ unsigned int i;
+ static struct {
+ u32 opt;
+ u16 reg;
+ u8 mask;
+ } cfg[] = {
+ { WAKE_ANY, Config1, PMEnable },
+ { WAKE_PHY, Config3, LinkUp },
+ { WAKE_MAGIC, Config3, MagicPacket },
+ { WAKE_UCAST, Config5, UWF },
+ { WAKE_BCAST, Config5, BWF },
+ { WAKE_MCAST, Config5, MWF },
+ { WAKE_ANY, Config5, LanWake }
+ };
+
+ spin_lock_irq(&tp->lock);
+
+ RTL_W8(Cfg9346, Cfg9346_Unlock);
+
+ for (i = 0; i < ARRAY_SIZE(cfg); i++) {
+ u8 options = RTL_R8(cfg[i].reg) & ~cfg[i].mask;
+ if (wol->wolopts & cfg[i].opt)
+ options |= cfg[i].mask;
+ RTL_W8(cfg[i].reg, options);
+ }
+
+ RTL_W8(Cfg9346, Cfg9346_Lock);
+
+ if (wol->wolopts)
+ tp->features |= RTL_FEATURE_WOL;
+ else
+ tp->features &= ~RTL_FEATURE_WOL;
+
+ spin_unlock_irq(&tp->lock);
+
+ return 0;
+}
+
+static void rtl8169_get_drvinfo(struct net_device *dev,
+ struct ethtool_drvinfo *info)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+
+ strcpy(info->driver, MODULENAME);
+ strcpy(info->version, RTL8169_VERSION);
+ strcpy(info->bus_info, pci_name(tp->pci_dev));
+}
+
+static int rtl8169_get_regs_len(struct net_device *dev)
+{
+ return R8169_REGS_SIZE;
+}
+
+static int rtl8169_set_speed_tbi(struct net_device *dev,
+ u8 autoneg, u16 speed, u8 duplex)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->mmio_addr;
+ int ret = 0;
+ u32 reg;
+
+ reg = RTL_R32(TBICSR);
+ if ((autoneg == AUTONEG_DISABLE) && (speed == SPEED_1000) &&
+ (duplex == DUPLEX_FULL)) {
+ RTL_W32(TBICSR, reg & ~(TBINwEnable | TBINwRestart));
+ } else if (autoneg == AUTONEG_ENABLE)
+ RTL_W32(TBICSR, reg | TBINwEnable | TBINwRestart);
+ else {
+ if (netif_msg_link(tp)) {
+ printk(KERN_WARNING "%s: "
+ "incorrect speed setting refused in TBI mode\n",
+ dev->name);
+ }
+ ret = -EOPNOTSUPP;
+ }
+
+ return ret;
+}
+
+static int rtl8169_set_speed_xmii(struct net_device *dev,
+ u8 autoneg, u16 speed, u8 duplex)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->mmio_addr;
+ int auto_nego, giga_ctrl;
+
+ auto_nego = mdio_read(ioaddr, MII_ADVERTISE);
+ auto_nego &= ~(ADVERTISE_10HALF | ADVERTISE_10FULL |
+ ADVERTISE_100HALF | ADVERTISE_100FULL);
+ giga_ctrl = mdio_read(ioaddr, MII_CTRL1000);
+ giga_ctrl &= ~(ADVERTISE_1000FULL | ADVERTISE_1000HALF);
+
+ if (autoneg == AUTONEG_ENABLE) {
+ auto_nego |= (ADVERTISE_10HALF | ADVERTISE_10FULL |
+ ADVERTISE_100HALF | ADVERTISE_100FULL);
+ giga_ctrl |= ADVERTISE_1000FULL | ADVERTISE_1000HALF;
+ } else {
+ if (speed == SPEED_10)
+ auto_nego |= ADVERTISE_10HALF | ADVERTISE_10FULL;
+ else if (speed == SPEED_100)
+ auto_nego |= ADVERTISE_100HALF | ADVERTISE_100FULL;
+ else if (speed == SPEED_1000)
+ giga_ctrl |= ADVERTISE_1000FULL | ADVERTISE_1000HALF;
+
+ if (duplex == DUPLEX_HALF)
+ auto_nego &= ~(ADVERTISE_10FULL | ADVERTISE_100FULL);
+
+ if (duplex == DUPLEX_FULL)
+ auto_nego &= ~(ADVERTISE_10HALF | ADVERTISE_100HALF);
+
+ /* This tweak comes straight from Realtek's driver. */
+ if ((speed == SPEED_100) && (duplex == DUPLEX_HALF) &&
+ ((tp->mac_version == RTL_GIGA_MAC_VER_13) ||
+ (tp->mac_version == RTL_GIGA_MAC_VER_16))) {
+ auto_nego = ADVERTISE_100HALF | ADVERTISE_CSMA;
+ }
+ }
+
+ /* The 8100e/8101e do Fast Ethernet only. */
+ if ((tp->mac_version == RTL_GIGA_MAC_VER_13) ||
+ (tp->mac_version == RTL_GIGA_MAC_VER_14) ||
+ (tp->mac_version == RTL_GIGA_MAC_VER_15) ||
+ (tp->mac_version == RTL_GIGA_MAC_VER_16)) {
+ if ((giga_ctrl & (ADVERTISE_1000FULL | ADVERTISE_1000HALF)) &&
+ netif_msg_link(tp)) {
+ printk(KERN_INFO "%s: PHY does not support 1000Mbps.\n",
+ dev->name);
+ }
+ giga_ctrl &= ~(ADVERTISE_1000FULL | ADVERTISE_1000HALF);
+ }
+
+ auto_nego |= ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM;
+
+ if ((tp->mac_version == RTL_GIGA_MAC_VER_12) ||
+ (tp->mac_version == RTL_GIGA_MAC_VER_17)) {
+ /* Vendor specific (0x1f) and reserved (0x0e) MII registers. */
+ mdio_write(ioaddr, 0x1f, 0x0000);
+ mdio_write(ioaddr, 0x0e, 0x0000);
+ }
+
+ tp->phy_auto_nego_reg = auto_nego;
+ tp->phy_1000_ctrl_reg = giga_ctrl;
+
+ mdio_write(ioaddr, MII_ADVERTISE, auto_nego);
+ mdio_write(ioaddr, MII_CTRL1000, giga_ctrl);
+ mdio_write(ioaddr, MII_BMCR, BMCR_ANENABLE | BMCR_ANRESTART);
+ return 0;
+}
+
+static int rtl8169_set_speed(struct net_device *dev,
+ u8 autoneg, u16 speed, u8 duplex)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ int ret;
+
+ ret = tp->set_speed(dev, autoneg, speed, duplex);
+
+ if (netif_running(dev) && (tp->phy_1000_ctrl_reg & ADVERTISE_1000FULL))
+ mod_timer(&tp->timer, jiffies + RTL8169_PHY_TIMEOUT);
+
+ return ret;
+}
+
+static int rtl8169_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ unsigned long flags;
+ int ret;
+
+ spin_lock_irqsave(&tp->lock, flags);
+ ret = rtl8169_set_speed(dev, cmd->autoneg, cmd->speed, cmd->duplex);
+ spin_unlock_irqrestore(&tp->lock, flags);
+
+ return ret;
+}
+
+static u32 rtl8169_get_rx_csum(struct net_device *dev)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+
+ return tp->cp_cmd & RxChkSum;
+}
+
+static int rtl8169_set_rx_csum(struct net_device *dev, u32 data)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->mmio_addr;
+ unsigned long flags;
+
+ spin_lock_irqsave(&tp->lock, flags);
+
+ if (data)
+ tp->cp_cmd |= RxChkSum;
+ else
+ tp->cp_cmd &= ~RxChkSum;
+
+ RTL_W16(CPlusCmd, tp->cp_cmd);
+ RTL_R16(CPlusCmd);
+
+ spin_unlock_irqrestore(&tp->lock, flags);
+
+ return 0;
+}
+
+#ifdef CONFIG_R8169_VLAN
+
+static inline u32 rtl8169_tx_vlan_tag(struct rtl8169_private *tp,
+ struct sk_buff *skb)
+{
+ return (tp->vlgrp && vlan_tx_tag_present(skb)) ?
+ TxVlanTag | swab16(vlan_tx_tag_get(skb)) : 0x00;
+}
+
+static void rtl8169_vlan_rx_register(struct net_device *dev,
+ struct vlan_group *grp)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->mmio_addr;
+ unsigned long flags;
+
+ spin_lock_irqsave(&tp->lock, flags);
+ tp->vlgrp = grp;
+ if (tp->vlgrp)
+ tp->cp_cmd |= RxVlan;
+ else
+ tp->cp_cmd &= ~RxVlan;
+ RTL_W16(CPlusCmd, tp->cp_cmd);
+ RTL_R16(CPlusCmd);
+ spin_unlock_irqrestore(&tp->lock, flags);
+}
+
+static int rtl8169_rx_vlan_skb(struct rtl8169_private *tp, struct RxDesc *desc,
+ struct sk_buff *skb)
+{
+ u32 opts2 = le32_to_cpu(desc->opts2);
+ int ret;
+
+ if (tp->vlgrp && (opts2 & RxVlanTag)) {
+ rtl8169_rx_hwaccel_skb(skb, tp->vlgrp, swab16(opts2 & 0xffff));
+ ret = 0;
+ } else
+ ret = -1;
+ desc->opts2 = 0;
+ return ret;
+}
+
+#else /* !CONFIG_R8169_VLAN */
+
+static inline u32 rtl8169_tx_vlan_tag(struct rtl8169_private *tp,
+ struct sk_buff *skb)
+{
+ return 0;
+}
+
+static int rtl8169_rx_vlan_skb(struct rtl8169_private *tp, struct RxDesc *desc,
+ struct sk_buff *skb)
+{
+ return -1;
+}
+
+#endif
+
+static void rtl8169_gset_tbi(struct net_device *dev, struct ethtool_cmd *cmd)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->mmio_addr;
+ u32 status;
+
+ cmd->supported =
+ SUPPORTED_1000baseT_Full | SUPPORTED_Autoneg | SUPPORTED_FIBRE;
+ cmd->port = PORT_FIBRE;
+ cmd->transceiver = XCVR_INTERNAL;
+
+ status = RTL_R32(TBICSR);
+ cmd->advertising = (status & TBINwEnable) ? ADVERTISED_Autoneg : 0;
+ cmd->autoneg = !!(status & TBINwEnable);
+
+ cmd->speed = SPEED_1000;
+ cmd->duplex = DUPLEX_FULL; /* Always set */
+}
+
+static void rtl8169_gset_xmii(struct net_device *dev, struct ethtool_cmd *cmd)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->mmio_addr;
+ u8 status;
+
+ cmd->supported = SUPPORTED_10baseT_Half |
+ SUPPORTED_10baseT_Full |
+ SUPPORTED_100baseT_Half |
+ SUPPORTED_100baseT_Full |
+ SUPPORTED_1000baseT_Full |
+ SUPPORTED_Autoneg |
+ SUPPORTED_TP;
+
+ cmd->autoneg = 1;
+ cmd->advertising = ADVERTISED_TP | ADVERTISED_Autoneg;
+
+ if (tp->phy_auto_nego_reg & ADVERTISE_10HALF)
+ cmd->advertising |= ADVERTISED_10baseT_Half;
+ if (tp->phy_auto_nego_reg & ADVERTISE_10FULL)
+ cmd->advertising |= ADVERTISED_10baseT_Full;
+ if (tp->phy_auto_nego_reg & ADVERTISE_100HALF)
+ cmd->advertising |= ADVERTISED_100baseT_Half;
+ if (tp->phy_auto_nego_reg & ADVERTISE_100FULL)
+ cmd->advertising |= ADVERTISED_100baseT_Full;
+ if (tp->phy_1000_ctrl_reg & ADVERTISE_1000FULL)
+ cmd->advertising |= ADVERTISED_1000baseT_Full;
+
+ status = RTL_R8(PHYstatus);
+
+ if (status & _1000bpsF)
+ cmd->speed = SPEED_1000;
+ else if (status & _100bps)
+ cmd->speed = SPEED_100;
+ else if (status & _10bps)
+ cmd->speed = SPEED_10;
+
+ if (status & TxFlowCtrl)
+ cmd->advertising |= ADVERTISED_Asym_Pause;
+ if (status & RxFlowCtrl)
+ cmd->advertising |= ADVERTISED_Pause;
+
+ cmd->duplex = ((status & _1000bpsF) || (status & FullDup)) ?
+ DUPLEX_FULL : DUPLEX_HALF;
+}
+
+static int rtl8169_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ unsigned long flags;
+
+ spin_lock_irqsave(&tp->lock, flags);
+
+ tp->get_settings(dev, cmd);
+
+ spin_unlock_irqrestore(&tp->lock, flags);
+ return 0;
+}
+
+static void rtl8169_get_regs(struct net_device *dev, struct ethtool_regs *regs,
+ void *p)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ unsigned long flags;
+
+ if (regs->len > R8169_REGS_SIZE)
+ regs->len = R8169_REGS_SIZE;
+
+ spin_lock_irqsave(&tp->lock, flags);
+ memcpy_fromio(p, tp->mmio_addr, regs->len);
+ spin_unlock_irqrestore(&tp->lock, flags);
+}
+
+static u32 rtl8169_get_msglevel(struct net_device *dev)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+
+ return tp->msg_enable;
+}
+
+static void rtl8169_set_msglevel(struct net_device *dev, u32 value)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+
+ tp->msg_enable = value;
+}
+
+static const char rtl8169_gstrings[][ETH_GSTRING_LEN] = {
+ "tx_packets",
+ "rx_packets",
+ "tx_errors",
+ "rx_errors",
+ "rx_missed",
+ "align_errors",
+ "tx_single_collisions",
+ "tx_multi_collisions",
+ "unicast",
+ "broadcast",
+ "multicast",
+ "tx_aborted",
+ "tx_underrun",
+};
+
+struct rtl8169_counters {
+ __le64 tx_packets;
+ __le64 rx_packets;
+ __le64 tx_errors;
+ __le32 rx_errors;
+ __le16 rx_missed;
+ __le16 align_errors;
+ __le32 tx_one_collision;
+ __le32 tx_multi_collision;
+ __le64 rx_unicast;
+ __le64 rx_broadcast;
+ __le32 rx_multicast;
+ __le16 tx_aborted;
+ __le16 tx_underun;
+};
+
+static int rtl8169_get_sset_count(struct net_device *dev, int sset)
+{
+ switch (sset) {
+ case ETH_SS_STATS:
+ return ARRAY_SIZE(rtl8169_gstrings);
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+static void rtl8169_get_ethtool_stats(struct net_device *dev,
+ struct ethtool_stats *stats, u64 *data)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->mmio_addr;
+ struct rtl8169_counters *counters;
+ dma_addr_t paddr;
+ u32 cmd;
+
+ ASSERT_RTNL();
+
+ counters = pci_alloc_consistent(tp->pci_dev, sizeof(*counters), &paddr);
+ if (!counters)
+ return;
+
+ RTL_W32(CounterAddrHigh, (u64)paddr >> 32);
+ cmd = (u64)paddr & DMA_32BIT_MASK;
+ RTL_W32(CounterAddrLow, cmd);
+ RTL_W32(CounterAddrLow, cmd | CounterDump);
+
+ while (RTL_R32(CounterAddrLow) & CounterDump) {
+ if (msleep_interruptible(1))
+ break;
+ }
+
+ RTL_W32(CounterAddrLow, 0);
+ RTL_W32(CounterAddrHigh, 0);
+
+ data[0] = le64_to_cpu(counters->tx_packets);
+ data[1] = le64_to_cpu(counters->rx_packets);
+ data[2] = le64_to_cpu(counters->tx_errors);
+ data[3] = le32_to_cpu(counters->rx_errors);
+ data[4] = le16_to_cpu(counters->rx_missed);
+ data[5] = le16_to_cpu(counters->align_errors);
+ data[6] = le32_to_cpu(counters->tx_one_collision);
+ data[7] = le32_to_cpu(counters->tx_multi_collision);
+ data[8] = le64_to_cpu(counters->rx_unicast);
+ data[9] = le64_to_cpu(counters->rx_broadcast);
+ data[10] = le32_to_cpu(counters->rx_multicast);
+ data[11] = le16_to_cpu(counters->tx_aborted);
+ data[12] = le16_to_cpu(counters->tx_underun);
+
+ pci_free_consistent(tp->pci_dev, sizeof(*counters), counters, paddr);
+}
+
+static void rtl8169_get_strings(struct net_device *dev, u32 stringset, u8 *data)
+{
+ switch(stringset) {
+ case ETH_SS_STATS:
+ memcpy(data, *rtl8169_gstrings, sizeof(rtl8169_gstrings));
+ break;
+ }
+}
+
+static const struct ethtool_ops rtl8169_ethtool_ops = {
+ .get_drvinfo = rtl8169_get_drvinfo,
+ .get_regs_len = rtl8169_get_regs_len,
+ .get_link = ethtool_op_get_link,
+ .get_settings = rtl8169_get_settings,
+ .set_settings = rtl8169_set_settings,
+ .get_msglevel = rtl8169_get_msglevel,
+ .set_msglevel = rtl8169_set_msglevel,
+ .get_rx_csum = rtl8169_get_rx_csum,
+ .set_rx_csum = rtl8169_set_rx_csum,
+ .set_tx_csum = ethtool_op_set_tx_csum,
+ .set_sg = ethtool_op_set_sg,
+ .set_tso = ethtool_op_set_tso,
+ .get_regs = rtl8169_get_regs,
+ .get_wol = rtl8169_get_wol,
+ .set_wol = rtl8169_set_wol,
+ .get_strings = rtl8169_get_strings,
+ .get_sset_count = rtl8169_get_sset_count,
+ .get_ethtool_stats = rtl8169_get_ethtool_stats,
+};
+
+static void rtl8169_write_gmii_reg_bit(void __iomem *ioaddr, int reg,
+ int bitnum, int bitval)
+{
+ int val;
+
+ val = mdio_read(ioaddr, reg);
+ val = (bitval == 1) ?
+ val | (bitval << bitnum) : val & ~(0x0001 << bitnum);
+ mdio_write(ioaddr, reg, val & 0xffff);
+}
+
+static void rtl8169_get_mac_version(struct rtl8169_private *tp,
+ void __iomem *ioaddr)
+{
+ /*
+ * The driver currently handles the 8168Bf and the 8168Be identically
+ * but they can be identified more specifically through the test below
+ * if needed:
+ *
+ * (RTL_R32(TxConfig) & 0x700000) == 0x500000 ? 8168Bf : 8168Be
+ *
+ * Same thing for the 8101Eb and the 8101Ec:
+ *
+ * (RTL_R32(TxConfig) & 0x700000) == 0x200000 ? 8101Eb : 8101Ec
+ */
+ const struct {
+ u32 mask;
+ u32 val;
+ int mac_version;
+ } mac_info[] = {
+ /* 8168B family. */
+ { 0x7c800000, 0x3c800000, RTL_GIGA_MAC_VER_18 },
+ { 0x7cf00000, 0x3c000000, RTL_GIGA_MAC_VER_19 },
+ { 0x7cf00000, 0x3c200000, RTL_GIGA_MAC_VER_20 },
+ { 0x7c800000, 0x3c000000, RTL_GIGA_MAC_VER_20 },
+
+ /* 8168B family. */
+ { 0x7cf00000, 0x38000000, RTL_GIGA_MAC_VER_12 },
+ { 0x7cf00000, 0x38500000, RTL_GIGA_MAC_VER_17 },
+ { 0x7c800000, 0x38000000, RTL_GIGA_MAC_VER_17 },
+ { 0x7c800000, 0x30000000, RTL_GIGA_MAC_VER_11 },
+
+ /* 8101 family. */
+ { 0x7cf00000, 0x34000000, RTL_GIGA_MAC_VER_13 },
+ { 0x7cf00000, 0x34200000, RTL_GIGA_MAC_VER_16 },
+ { 0x7c800000, 0x34000000, RTL_GIGA_MAC_VER_16 },
+ /* FIXME: where did these entries come from ? -- FR */
+ { 0xfc800000, 0x38800000, RTL_GIGA_MAC_VER_15 },
+ { 0xfc800000, 0x30800000, RTL_GIGA_MAC_VER_14 },
+
+ /* 8110 family. */
+ { 0xfc800000, 0x98000000, RTL_GIGA_MAC_VER_06 },
+ { 0xfc800000, 0x18000000, RTL_GIGA_MAC_VER_05 },
+ { 0xfc800000, 0x10000000, RTL_GIGA_MAC_VER_04 },
+ { 0xfc800000, 0x04000000, RTL_GIGA_MAC_VER_03 },
+ { 0xfc800000, 0x00800000, RTL_GIGA_MAC_VER_02 },
+ { 0xfc800000, 0x00000000, RTL_GIGA_MAC_VER_01 },
+
+ { 0x00000000, 0x00000000, RTL_GIGA_MAC_VER_01 } /* Catch-all */
+ }, *p = mac_info;
+ u32 reg;
+
+ reg = RTL_R32(TxConfig);
+ while ((reg & p->mask) != p->val)
+ p++;
+ tp->mac_version = p->mac_version;
+
+ if (p->mask == 0x00000000) {
+ struct pci_dev *pdev = tp->pci_dev;
+
+ dev_info(&pdev->dev, "unknown MAC (%08x)\n", reg);
+ }
+}
+
+static void rtl8169_print_mac_version(struct rtl8169_private *tp)
+{
+ dprintk("mac_version = 0x%02x\n", tp->mac_version);
+}
+
+struct phy_reg {
+ u16 reg;
+ u16 val;
+};
+
+static void rtl_phy_write(void __iomem *ioaddr, struct phy_reg *regs, int len)
+{
+ while (len-- > 0) {
+ mdio_write(ioaddr, regs->reg, regs->val);
+ regs++;
+ }
+}
+
+static void rtl8169s_hw_phy_config(void __iomem *ioaddr)
+{
+ struct {
+ u16 regs[5]; /* Beware of bit-sign propagation */
+ } phy_magic[5] = { {
+ { 0x0000, //w 4 15 12 0
+ 0x00a1, //w 3 15 0 00a1
+ 0x0008, //w 2 15 0 0008
+ 0x1020, //w 1 15 0 1020
+ 0x1000 } },{ //w 0 15 0 1000
+ { 0x7000, //w 4 15 12 7
+ 0xff41, //w 3 15 0 ff41
+ 0xde60, //w 2 15 0 de60
+ 0x0140, //w 1 15 0 0140
+ 0x0077 } },{ //w 0 15 0 0077
+ { 0xa000, //w 4 15 12 a
+ 0xdf01, //w 3 15 0 df01
+ 0xdf20, //w 2 15 0 df20
+ 0xff95, //w 1 15 0 ff95
+ 0xfa00 } },{ //w 0 15 0 fa00
+ { 0xb000, //w 4 15 12 b
+ 0xff41, //w 3 15 0 ff41
+ 0xde20, //w 2 15 0 de20
+ 0x0140, //w 1 15 0 0140
+ 0x00bb } },{ //w 0 15 0 00bb
+ { 0xf000, //w 4 15 12 f
+ 0xdf01, //w 3 15 0 df01
+ 0xdf20, //w 2 15 0 df20
+ 0xff95, //w 1 15 0 ff95
+ 0xbf00 } //w 0 15 0 bf00
+ }
+ }, *p = phy_magic;
+ unsigned int i;
+
+ mdio_write(ioaddr, 0x1f, 0x0001); //w 31 2 0 1
+ mdio_write(ioaddr, 0x15, 0x1000); //w 21 15 0 1000
+ mdio_write(ioaddr, 0x18, 0x65c7); //w 24 15 0 65c7
+ rtl8169_write_gmii_reg_bit(ioaddr, 4, 11, 0); //w 4 11 11 0
+
+ for (i = 0; i < ARRAY_SIZE(phy_magic); i++, p++) {
+ int val, pos = 4;
+
+ val = (mdio_read(ioaddr, pos) & 0x0fff) | (p->regs[0] & 0xffff);
+ mdio_write(ioaddr, pos, val);
+ while (--pos >= 0)
+ mdio_write(ioaddr, pos, p->regs[4 - pos] & 0xffff);
+ rtl8169_write_gmii_reg_bit(ioaddr, 4, 11, 1); //w 4 11 11 1
+ rtl8169_write_gmii_reg_bit(ioaddr, 4, 11, 0); //w 4 11 11 0
+ }
+ mdio_write(ioaddr, 0x1f, 0x0000); //w 31 2 0 0
+}
+
+static void rtl8169sb_hw_phy_config(void __iomem *ioaddr)
+{
+ struct phy_reg phy_reg_init[] = {
+ { 0x1f, 0x0002 },
+ { 0x01, 0x90d0 },
+ { 0x1f, 0x0000 }
+ };
+
+ rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init));
+}
+
+static void rtl8168cp_hw_phy_config(void __iomem *ioaddr)
+{
+ struct phy_reg phy_reg_init[] = {
+ { 0x1f, 0x0000 },
+ { 0x1d, 0x0f00 },
+ { 0x1f, 0x0002 },
+ { 0x0c, 0x1ec8 },
+ { 0x1f, 0x0000 }
+ };
+
+ rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init));
+}
+
+static void rtl8168c_hw_phy_config(void __iomem *ioaddr)
+{
+ struct phy_reg phy_reg_init[] = {
+ { 0x1f, 0x0001 },
+ { 0x12, 0x2300 },
+ { 0x1f, 0x0002 },
+ { 0x00, 0x88d4 },
+ { 0x01, 0x82b1 },
+ { 0x03, 0x7002 },
+ { 0x08, 0x9e30 },
+ { 0x09, 0x01f0 },
+ { 0x0a, 0x5500 },
+ { 0x0c, 0x00c8 },
+ { 0x1f, 0x0003 },
+ { 0x12, 0xc096 },
+ { 0x16, 0x000a },
+ { 0x1f, 0x0000 }
+ };
+
+ rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init));
+}
+
+static void rtl8168cx_hw_phy_config(void __iomem *ioaddr)
+{
+ struct phy_reg phy_reg_init[] = {
+ { 0x1f, 0x0000 },
+ { 0x12, 0x2300 },
+ { 0x1f, 0x0003 },
+ { 0x16, 0x0f0a },
+ { 0x1f, 0x0000 },
+ { 0x1f, 0x0002 },
+ { 0x0c, 0x7eb8 },
+ { 0x1f, 0x0000 }
+ };
+
+ rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init));
+}
+
+static void rtl_hw_phy_config(struct net_device *dev)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->mmio_addr;
+
+ rtl8169_print_mac_version(tp);
+
+ switch (tp->mac_version) {
+ case RTL_GIGA_MAC_VER_01:
+ break;
+ case RTL_GIGA_MAC_VER_02:
+ case RTL_GIGA_MAC_VER_03:
+ rtl8169s_hw_phy_config(ioaddr);
+ break;
+ case RTL_GIGA_MAC_VER_04:
+ rtl8169sb_hw_phy_config(ioaddr);
+ break;
+ case RTL_GIGA_MAC_VER_18:
+ rtl8168cp_hw_phy_config(ioaddr);
+ break;
+ case RTL_GIGA_MAC_VER_19:
+ rtl8168c_hw_phy_config(ioaddr);
+ break;
+ case RTL_GIGA_MAC_VER_20:
+ rtl8168cx_hw_phy_config(ioaddr);
+ break;
+ default:
+ break;
+ }
+}
+
+static void rtl8169_phy_timer(unsigned long __opaque)
+{
+ struct net_device *dev = (struct net_device *)__opaque;
+ struct rtl8169_private *tp = netdev_priv(dev);
+ struct timer_list *timer = &tp->timer;
+ void __iomem *ioaddr = tp->mmio_addr;
+ unsigned long timeout = RTL8169_PHY_TIMEOUT;
+
+ assert(tp->mac_version > RTL_GIGA_MAC_VER_01);
+
+ if (!(tp->phy_1000_ctrl_reg & ADVERTISE_1000FULL))
+ return;
+
+ spin_lock_irq(&tp->lock);
+
+ if (tp->phy_reset_pending(ioaddr)) {
+ /*
+ * A busy loop could burn quite a few cycles on nowadays CPU.
+ * Let's delay the execution of the timer for a few ticks.
+ */
+ timeout = HZ/10;
+ goto out_mod_timer;
+ }
+
+ if (tp->link_ok(ioaddr))
+ goto out_unlock;
+
+ if (netif_msg_link(tp))
+ printk(KERN_WARNING "%s: PHY reset until link up\n", dev->name);
+
+ tp->phy_reset_enable(ioaddr);
+
+out_mod_timer:
+ mod_timer(timer, jiffies + timeout);
+out_unlock:
+ spin_unlock_irq(&tp->lock);
+}
+
+static inline void rtl8169_delete_timer(struct net_device *dev)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ struct timer_list *timer = &tp->timer;
+
+ if (tp->mac_version <= RTL_GIGA_MAC_VER_01)
+ return;
+
+ del_timer_sync(timer);
+}
+
+static inline void rtl8169_request_timer(struct net_device *dev)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ struct timer_list *timer = &tp->timer;
+
+ if (tp->mac_version <= RTL_GIGA_MAC_VER_01)
+ return;
+
+ mod_timer(timer, jiffies + RTL8169_PHY_TIMEOUT);
+}
+
+#ifdef CONFIG_NET_POLL_CONTROLLER
+/*
+ * Polling 'interrupt' - used by things like netconsole to send skbs
+ * without having to re-enable interrupts. It's not called while
+ * the interrupt routine is executing.
+ */
+static void rtl8169_netpoll(struct net_device *dev)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ struct pci_dev *pdev = tp->pci_dev;
+
+ disable_irq(pdev->irq);
+ rtl8169_interrupt(pdev->irq, dev);
+ enable_irq(pdev->irq);
+}
+#endif
+
+static void rtl8169_release_board(struct pci_dev *pdev, struct net_device *dev,
+ void __iomem *ioaddr)
+{
+ iounmap(ioaddr);
+ pci_release_regions(pdev);
+ pci_disable_device(pdev);
+ free_netdev(dev);
+}
+
+static void rtl8169_phy_reset(struct net_device *dev,
+ struct rtl8169_private *tp)
+{
+ void __iomem *ioaddr = tp->mmio_addr;
+ unsigned int i;
+
+ tp->phy_reset_enable(ioaddr);
+ for (i = 0; i < 100; i++) {
+ if (!tp->phy_reset_pending(ioaddr))
+ return;
+ msleep(1);
+ }
+ if (netif_msg_link(tp))
+ printk(KERN_ERR "%s: PHY reset failed.\n", dev->name);
+}
+
+static void rtl8169_init_phy(struct net_device *dev, struct rtl8169_private *tp)
+{
+ void __iomem *ioaddr = tp->mmio_addr;
+
+ rtl_hw_phy_config(dev);
+
+ dprintk("Set MAC Reg C+CR Offset 0x82h = 0x01h\n");
+ RTL_W8(0x82, 0x01);
+
+ pci_write_config_byte(tp->pci_dev, PCI_LATENCY_TIMER, 0x40);
+
+ if (tp->mac_version <= RTL_GIGA_MAC_VER_06)
+ pci_write_config_byte(tp->pci_dev, PCI_CACHE_LINE_SIZE, 0x08);
+
+ if (tp->mac_version == RTL_GIGA_MAC_VER_02) {
+ dprintk("Set MAC Reg C+CR Offset 0x82h = 0x01h\n");
+ RTL_W8(0x82, 0x01);
+ dprintk("Set PHY Reg 0x0bh = 0x00h\n");
+ mdio_write(ioaddr, 0x0b, 0x0000); //w 0x0b 15 0 0
+ }
+
+ rtl8169_phy_reset(dev, tp);
+
+ /*
+ * rtl8169_set_speed_xmii takes good care of the Fast Ethernet
+ * only 8101. Don't panic.
+ */
+ rtl8169_set_speed(dev, AUTONEG_ENABLE, SPEED_1000, DUPLEX_FULL);
+
+ if ((RTL_R8(PHYstatus) & TBI_Enable) && netif_msg_link(tp))
+ printk(KERN_INFO PFX "%s: TBI auto-negotiating\n", dev->name);
+}
+
+static void rtl_rar_set(struct rtl8169_private *tp, u8 *addr)
+{
+ void __iomem *ioaddr = tp->mmio_addr;
+ u32 high;
+ u32 low;
+
+ low = addr[0] | (addr[1] << 8) | (addr[2] << 16) | (addr[3] << 24);
+ high = addr[4] | (addr[5] << 8);
+
+ spin_lock_irq(&tp->lock);
+
+ RTL_W8(Cfg9346, Cfg9346_Unlock);
+ RTL_W32(MAC0, low);
+ RTL_W32(MAC4, high);
+ RTL_W8(Cfg9346, Cfg9346_Lock);
+
+ spin_unlock_irq(&tp->lock);
+}
+
+static int rtl_set_mac_address(struct net_device *dev, void *p)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ struct sockaddr *addr = p;
+
+ if (!is_valid_ether_addr(addr->sa_data))
+ return -EADDRNOTAVAIL;
+
+ memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
+
+ rtl_rar_set(tp, dev->dev_addr);
+
+ return 0;
+}
+
+static int rtl8169_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ struct mii_ioctl_data *data = if_mii(ifr);
+
+ if (!netif_running(dev))
+ return -ENODEV;
+
+ switch (cmd) {
+ case SIOCGMIIPHY:
+ data->phy_id = 32; /* Internal PHY */
+ return 0;
+
+ case SIOCGMIIREG:
+ data->val_out = mdio_read(tp->mmio_addr, data->reg_num & 0x1f);
+ return 0;
+
+ case SIOCSMIIREG:
+ if (!capable(CAP_NET_ADMIN))
+ return -EPERM;
+ mdio_write(tp->mmio_addr, data->reg_num & 0x1f, data->val_in);
+ return 0;
+ }
+ return -EOPNOTSUPP;
+}
+
+static const struct rtl_cfg_info {
+ void (*hw_start)(struct net_device *);
+ unsigned int region;
+ unsigned int align;
+ u16 intr_event;
+ u16 napi_event;
+ unsigned msi;
+} rtl_cfg_infos [] = {
+ [RTL_CFG_0] = {
+ .hw_start = rtl_hw_start_8169,
+ .region = 1,
+ .align = 0,
+ .intr_event = SYSErr | LinkChg | RxOverflow |
+ RxFIFOOver | TxErr | TxOK | RxOK | RxErr,
+ .napi_event = RxFIFOOver | TxErr | TxOK | RxOK | RxOverflow,
+ .msi = 0
+ },
+ [RTL_CFG_1] = {
+ .hw_start = rtl_hw_start_8168,
+ .region = 2,
+ .align = 8,
+ .intr_event = SYSErr | LinkChg | RxOverflow |
+ TxErr | TxOK | RxOK | RxErr,
+ .napi_event = TxErr | TxOK | RxOK | RxOverflow,
+ .msi = RTL_FEATURE_MSI
+ },
+ [RTL_CFG_2] = {
+ .hw_start = rtl_hw_start_8101,
+ .region = 2,
+ .align = 8,
+ .intr_event = SYSErr | LinkChg | RxOverflow | PCSTimeout |
+ RxFIFOOver | TxErr | TxOK | RxOK | RxErr,
+ .napi_event = RxFIFOOver | TxErr | TxOK | RxOK | RxOverflow,
+ .msi = RTL_FEATURE_MSI
+ }
+};
+
+/* Cfg9346_Unlock assumed. */
+static unsigned rtl_try_msi(struct pci_dev *pdev, void __iomem *ioaddr,
+ const struct rtl_cfg_info *cfg)
+{
+ unsigned msi = 0;
+ u8 cfg2;
+
+ cfg2 = RTL_R8(Config2) & ~MSIEnable;
+ if (cfg->msi) {
+ if (pci_enable_msi(pdev)) {
+ dev_info(&pdev->dev, "no MSI. Back to INTx.\n");
+ } else {
+ cfg2 |= MSIEnable;
+ msi = RTL_FEATURE_MSI;
+ }
+ }
+ RTL_W8(Config2, cfg2);
+ return msi;
+}
+
+static void rtl_disable_msi(struct pci_dev *pdev, struct rtl8169_private *tp)
+{
+ if (tp->features & RTL_FEATURE_MSI) {
+ pci_disable_msi(pdev);
+ tp->features &= ~RTL_FEATURE_MSI;
+ }
+}
+
+static int __devinit
+rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
+{
+ const struct rtl_cfg_info *cfg = rtl_cfg_infos + ent->driver_data;
+ const unsigned int region = cfg->region;
+ struct rtl8169_private *tp;
+ struct net_device *dev;
+ void __iomem *ioaddr;
+ unsigned int i;
+ int rc;
+
+ if (netif_msg_drv(&debug)) {
+ printk(KERN_INFO "%s Gigabit Ethernet driver %s loaded\n",
+ MODULENAME, RTL8169_VERSION);
+ }
+
+ dev = alloc_etherdev(sizeof (*tp));
+ if (!dev) {
+ if (netif_msg_drv(&debug))
+ dev_err(&pdev->dev, "unable to alloc new ethernet\n");
+ rc = -ENOMEM;
+ goto out;
+ }
+
+ SET_NETDEV_DEV(dev, &pdev->dev);
+ tp = netdev_priv(dev);
+ tp->dev = dev;
+ tp->msg_enable = netif_msg_init(debug.msg_enable, R8169_MSG_DEFAULT);
+
+ /* enable device (incl. PCI PM wakeup and hotplug setup) */
+ rc = pci_enable_device(pdev);
+ if (rc < 0) {
+ if (netif_msg_probe(tp))
+ dev_err(&pdev->dev, "enable failure\n");
+ goto err_out_free_dev_1;
+ }
+
+ rc = pci_set_mwi(pdev);
+ if (rc < 0)
+ goto err_out_disable_2;
+
+ /* make sure PCI base addr 1 is MMIO */
+ if (!(pci_resource_flags(pdev, region) & IORESOURCE_MEM)) {
+ if (netif_msg_probe(tp)) {
+ dev_err(&pdev->dev,
+ "region #%d not an MMIO resource, aborting\n",
+ region);
+ }
+ rc = -ENODEV;
+ goto err_out_mwi_3;
+ }
+
+ /* check for weird/broken PCI region reporting */
+ if (pci_resource_len(pdev, region) < R8169_REGS_SIZE) {
+ if (netif_msg_probe(tp)) {
+ dev_err(&pdev->dev,
+ "Invalid PCI region size(s), aborting\n");
+ }
+ rc = -ENODEV;
+ goto err_out_mwi_3;
+ }
+
+ rc = pci_request_regions(pdev, MODULENAME);
+ if (rc < 0) {
+ if (netif_msg_probe(tp))
+ dev_err(&pdev->dev, "could not request regions.\n");
+ goto err_out_mwi_3;
+ }
+
+ tp->cp_cmd = PCIMulRW | RxChkSum;
+
+ if ((sizeof(dma_addr_t) > 4) &&
+ !pci_set_dma_mask(pdev, DMA_64BIT_MASK) && use_dac) {
+ tp->cp_cmd |= PCIDAC;
+ dev->features |= NETIF_F_HIGHDMA;
+ } else {
+ rc = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
+ if (rc < 0) {
+ if (netif_msg_probe(tp)) {
+ dev_err(&pdev->dev,
+ "DMA configuration failed.\n");
+ }
+ goto err_out_free_res_4;
+ }
+ }
+
+ pci_set_master(pdev);
+
+ /* ioremap MMIO region */
+ ioaddr = ioremap(pci_resource_start(pdev, region), R8169_REGS_SIZE);
+ if (!ioaddr) {
+ if (netif_msg_probe(tp))
+ dev_err(&pdev->dev, "cannot remap MMIO, aborting\n");
+ rc = -EIO;
+ goto err_out_free_res_4;
+ }
+
+ /* Unneeded ? Don't mess with Mrs. Murphy. */
+ rtl8169_irq_mask_and_ack(ioaddr);
+
+ /* Soft reset the chip. */
+ RTL_W8(ChipCmd, CmdReset);
+
+ /* Check that the chip has finished the reset. */
+ for (i = 0; i < 100; i++) {
+ if ((RTL_R8(ChipCmd) & CmdReset) == 0)
+ break;
+ msleep_interruptible(1);
+ }
+
+ /* Identify chip attached to board */
+ rtl8169_get_mac_version(tp, ioaddr);
+
+ rtl8169_print_mac_version(tp);
+
+ for (i = ARRAY_SIZE(rtl_chip_info) - 1; i >= 0; i--) {
+ if (tp->mac_version == rtl_chip_info[i].mac_version)
+ break;
+ }
+ if (i < 0) {
+ /* Unknown chip: assume array element #0, original RTL-8169 */
+ if (netif_msg_probe(tp)) {
+ dev_printk(KERN_DEBUG, &pdev->dev,
+ "unknown chip version, assuming %s\n",
+ rtl_chip_info[0].name);
+ }
+ i++;
+ }
+ tp->chipset = i;
+
+ RTL_W8(Cfg9346, Cfg9346_Unlock);
+ RTL_W8(Config1, RTL_R8(Config1) | PMEnable);
+ RTL_W8(Config5, RTL_R8(Config5) & PMEStatus);
+ tp->features |= rtl_try_msi(pdev, ioaddr, cfg);
+ RTL_W8(Cfg9346, Cfg9346_Lock);
+
+ if ((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->phy_1000_ctrl_reg = ADVERTISE_1000FULL; /* Implied by TBI */
+ } else {
+ tp->set_speed = rtl8169_set_speed_xmii;
+ tp->get_settings = rtl8169_gset_xmii;
+ tp->phy_reset_enable = rtl8169_xmii_reset_enable;
+ tp->phy_reset_pending = rtl8169_xmii_reset_pending;
+ tp->link_ok = rtl8169_xmii_link_ok;
+
+ dev->do_ioctl = rtl8169_ioctl;
+ }
+
+ /* Get MAC address. FIXME: read EEPROM */
+ for (i = 0; i < MAC_ADDR_LEN; i++)
+ dev->dev_addr[i] = RTL_R8(MAC0 + i);
+ memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len);
+
+ dev->open = rtl8169_open;
+ dev->hard_start_xmit = rtl8169_start_xmit;
+ dev->get_stats = rtl8169_get_stats;
+ SET_ETHTOOL_OPS(dev, &rtl8169_ethtool_ops);
+ dev->stop = rtl8169_close;
+ dev->tx_timeout = rtl8169_tx_timeout;
+ dev->set_multicast_list = rtl_set_rx_mode;
+ dev->watchdog_timeo = RTL8169_TX_TIMEOUT;
+ dev->irq = pdev->irq;
+ dev->base_addr = (unsigned long) ioaddr;
+ dev->change_mtu = rtl8169_change_mtu;
+ dev->set_mac_address = rtl_set_mac_address;
+
+#ifdef CONFIG_R8169_NAPI
+ netif_napi_add(dev, &tp->napi, rtl8169_poll, R8169_NAPI_WEIGHT);
+#endif
+
+#ifdef CONFIG_R8169_VLAN
+ dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
+ dev->vlan_rx_register = rtl8169_vlan_rx_register;
+#endif
+
+#ifdef CONFIG_NET_POLL_CONTROLLER
+ dev->poll_controller = rtl8169_netpoll;
+#endif
+
+ tp->intr_mask = 0xffff;
+ tp->pci_dev = pdev;
+ tp->mmio_addr = ioaddr;
+ tp->align = cfg->align;
+ tp->hw_start = cfg->hw_start;
+ tp->intr_event = cfg->intr_event;
+ tp->napi_event = cfg->napi_event;
+
+ init_timer(&tp->timer);
+ tp->timer.data = (unsigned long) dev;
+ tp->timer.function = rtl8169_phy_timer;
+
+ spin_lock_init(&tp->lock);
+
+ rc = register_netdev(dev);
+ if (rc < 0)
+ goto err_out_msi_5;
+
+ pci_set_drvdata(pdev, dev);
+
+ if (netif_msg_probe(tp)) {
+ u32 xid = RTL_R32(TxConfig) & 0x7cf0f8ff;
+
+ printk(KERN_INFO "%s: %s at 0x%lx, "
+ "%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x, "
+ "XID %08x IRQ %d\n",
+ dev->name,
+ rtl_chip_info[tp->chipset].name,
+ dev->base_addr,
+ dev->dev_addr[0], dev->dev_addr[1],
+ dev->dev_addr[2], dev->dev_addr[3],
+ dev->dev_addr[4], dev->dev_addr[5], xid, dev->irq);
+ }
+
+ rtl8169_init_phy(dev, tp);
+
+out:
+ return rc;
+
+err_out_msi_5:
+ rtl_disable_msi(pdev, tp);
+ iounmap(ioaddr);
+err_out_free_res_4:
+ pci_release_regions(pdev);
+err_out_mwi_3:
+ pci_clear_mwi(pdev);
+err_out_disable_2:
+ pci_disable_device(pdev);
+err_out_free_dev_1:
+ free_netdev(dev);
+ goto out;
+}
+
+static void __devexit rtl8169_remove_one(struct pci_dev *pdev)
+{
+ struct net_device *dev = pci_get_drvdata(pdev);
+ struct rtl8169_private *tp = netdev_priv(dev);
+
+ flush_scheduled_work();
+
+ unregister_netdev(dev);
+ rtl_disable_msi(pdev, tp);
+ rtl8169_release_board(pdev, dev, tp->mmio_addr);
+ pci_set_drvdata(pdev, NULL);
+}
+
+static void rtl8169_set_rxbufsize(struct rtl8169_private *tp,
+ struct net_device *dev)
+{
+ unsigned int mtu = dev->mtu;
+
+ tp->rx_buf_sz = (mtu > RX_BUF_SIZE) ? mtu + ETH_HLEN + 8 : RX_BUF_SIZE;
+}
+
+static int rtl8169_open(struct net_device *dev)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ struct pci_dev *pdev = tp->pci_dev;
+ int retval = -ENOMEM;
+
+
+ rtl8169_set_rxbufsize(tp, dev);
+
+ /*
+ * Rx and Tx desscriptors needs 256 bytes alignment.
+ * pci_alloc_consistent provides more.
+ */
+ tp->TxDescArray = pci_alloc_consistent(pdev, R8169_TX_RING_BYTES,
+ &tp->TxPhyAddr);
+ if (!tp->TxDescArray)
+ goto out;
+
+ tp->RxDescArray = pci_alloc_consistent(pdev, R8169_RX_RING_BYTES,
+ &tp->RxPhyAddr);
+ if (!tp->RxDescArray)
+ goto err_free_tx_0;
+
+ retval = rtl8169_init_ring(dev);
+ if (retval < 0)
+ goto err_free_rx_1;
+
+ INIT_DELAYED_WORK(&tp->task, NULL);
+
+ smp_mb();
+
+ retval = request_irq(dev->irq, rtl8169_interrupt,
+ (tp->features & RTL_FEATURE_MSI) ? 0 : IRQF_SHARED,
+ dev->name, dev);
+ if (retval < 0)
+ goto err_release_ring_2;
+
+#ifdef CONFIG_R8169_NAPI
+ napi_enable(&tp->napi);
+#endif
+
+ rtl_hw_start(dev);
+
+ rtl8169_request_timer(dev);
+
+ rtl8169_check_link_status(dev, tp, tp->mmio_addr);
+out:
+ return retval;
+
+err_release_ring_2:
+ rtl8169_rx_clear(tp);
+err_free_rx_1:
+ pci_free_consistent(pdev, R8169_RX_RING_BYTES, tp->RxDescArray,
+ tp->RxPhyAddr);
+err_free_tx_0:
+ pci_free_consistent(pdev, R8169_TX_RING_BYTES, tp->TxDescArray,
+ tp->TxPhyAddr);
+ goto out;
+}
+
+static void rtl8169_hw_reset(void __iomem *ioaddr)
+{
+ /* Disable interrupts */
+ rtl8169_irq_mask_and_ack(ioaddr);
+
+ /* Reset the chipset */
+ RTL_W8(ChipCmd, CmdReset);
+
+ /* PCI commit */
+ RTL_R8(ChipCmd);
+}
+
+static void rtl_set_rx_tx_config_registers(struct rtl8169_private *tp)
+{
+ void __iomem *ioaddr = tp->mmio_addr;
+ u32 cfg = rtl8169_rx_config;
+
+ cfg |= (RTL_R32(RxConfig) & rtl_chip_info[tp->chipset].RxConfigMask);
+ RTL_W32(RxConfig, cfg);
+
+ /* Set DMA burst size and Interframe Gap Time */
+ RTL_W32(TxConfig, (TX_DMA_BURST << TxDMAShift) |
+ (InterFrameGap << TxInterFrameGapShift));
+}
+
+static void rtl_hw_start(struct net_device *dev)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->mmio_addr;
+ unsigned int i;
+
+ /* Soft reset the chip. */
+ RTL_W8(ChipCmd, CmdReset);
+
+ /* Check that the chip has finished the reset. */
+ for (i = 0; i < 100; i++) {
+ if ((RTL_R8(ChipCmd) & CmdReset) == 0)
+ break;
+ msleep_interruptible(1);
+ }
+
+ tp->hw_start(dev);
+
+ netif_start_queue(dev);
+}
+
+
+static void rtl_set_rx_tx_desc_registers(struct rtl8169_private *tp,
+ void __iomem *ioaddr)
+{
+ /*
+ * Magic spell: some iop3xx ARM board needs the TxDescAddrHigh
+ * register to be written before TxDescAddrLow to work.
+ * Switching from MMIO to I/O access fixes the issue as well.
+ */
+ RTL_W32(TxDescStartAddrHigh, ((u64) tp->TxPhyAddr) >> 32);
+ RTL_W32(TxDescStartAddrLow, ((u64) tp->TxPhyAddr) & DMA_32BIT_MASK);
+ RTL_W32(RxDescAddrHigh, ((u64) tp->RxPhyAddr) >> 32);
+ RTL_W32(RxDescAddrLow, ((u64) tp->RxPhyAddr) & DMA_32BIT_MASK);
+}
+
+static u16 rtl_rw_cpluscmd(void __iomem *ioaddr)
+{
+ u16 cmd;
+
+ cmd = RTL_R16(CPlusCmd);
+ RTL_W16(CPlusCmd, cmd);
+ return cmd;
+}
+
+static void rtl_set_rx_max_size(void __iomem *ioaddr)
+{
+ /* Low hurts. Let's disable the filtering. */
+ RTL_W16(RxMaxSize, 16383);
+}
+
+static void rtl8169_set_magic_reg(void __iomem *ioaddr, unsigned mac_version)
+{
+ struct {
+ u32 mac_version;
+ u32 clk;
+ u32 val;
+ } cfg2_info [] = {
+ { RTL_GIGA_MAC_VER_05, PCI_Clock_33MHz, 0x000fff00 }, // 8110SCd
+ { RTL_GIGA_MAC_VER_05, PCI_Clock_66MHz, 0x000fffff },
+ { RTL_GIGA_MAC_VER_06, PCI_Clock_33MHz, 0x00ffff00 }, // 8110SCe
+ { RTL_GIGA_MAC_VER_06, PCI_Clock_66MHz, 0x00ffffff }
+ }, *p = cfg2_info;
+ unsigned int i;
+ u32 clk;
+
+ clk = RTL_R8(Config2) & PCI_Clock_66MHz;
+ for (i = 0; i < ARRAY_SIZE(cfg2_info); i++, 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);
+
+ if ((tp->mac_version == RTL_GIGA_MAC_VER_01) ||
+ (tp->mac_version == RTL_GIGA_MAC_VER_02) ||
+ (tp->mac_version == RTL_GIGA_MAC_VER_03) ||
+ (tp->mac_version == RTL_GIGA_MAC_VER_04))
+ rtl_set_rx_tx_config_registers(tp);
+
+ tp->cp_cmd |= rtl_rw_cpluscmd(ioaddr) | PCIMulRW;
+
+ if ((tp->mac_version == RTL_GIGA_MAC_VER_02) ||
+ (tp->mac_version == RTL_GIGA_MAC_VER_03)) {
+ dprintk("Set MAC Reg C+CR Offset 0xE0. "
+ "Bit-3 and bit-14 MUST be 1\n");
+ tp->cp_cmd |= (1 << 14);
+ }
+
+ RTL_W16(CPlusCmd, tp->cp_cmd);
+
+ rtl8169_set_magic_reg(ioaddr, tp->mac_version);
+
+ /*
+ * Undocumented corner. Supposedly:
+ * (TxTimer << 12) | (TxPackets << 8) | (RxTimer << 4) | RxPackets
+ */
+ RTL_W16(IntrMitigate, 0x0000);
+
+ rtl_set_rx_tx_desc_registers(tp, ioaddr);
+
+ if ((tp->mac_version != RTL_GIGA_MAC_VER_01) &&
+ (tp->mac_version != RTL_GIGA_MAC_VER_02) &&
+ (tp->mac_version != RTL_GIGA_MAC_VER_03) &&
+ (tp->mac_version != RTL_GIGA_MAC_VER_04)) {
+ RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb);
+ rtl_set_rx_tx_config_registers(tp);
+ }
+
+ RTL_W8(Cfg9346, Cfg9346_Lock);
+
+ /* Initially a 10 us delay. Turned it into a PCI commit. - FR */
+ RTL_R8(IntrMask);
+
+ RTL_W32(RxMissed, 0);
+
+ rtl_set_rx_mode(dev);
+
+ /* no early-rx interrupts */
+ RTL_W16(MultiIntr, RTL_R16(MultiIntr) & 0xF000);
+
+ /* Enable all known interrupts by setting the interrupt mask. */
+ RTL_W16(IntrMask, tp->intr_event);
+}
+
+static void rtl_hw_start_8168(struct net_device *dev)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->mmio_addr;
+ struct pci_dev *pdev = tp->pci_dev;
+ u8 ctl;
+
+ RTL_W8(Cfg9346, Cfg9346_Unlock);
+
+ RTL_W8(EarlyTxThres, EarlyTxThld);
+
+ rtl_set_rx_max_size(ioaddr);
+
+ rtl_set_rx_tx_config_registers(tp);
+
+ tp->cp_cmd |= RTL_R16(CPlusCmd) | PktCntrDisable | INTT_1;
+
+ RTL_W16(CPlusCmd, tp->cp_cmd);
+
+ /* Tx performance tweak. */
+ pci_read_config_byte(pdev, 0x69, &ctl);
+ ctl = (ctl & ~0x70) | 0x50;
+ pci_write_config_byte(pdev, 0x69, ctl);
+
+ RTL_W16(IntrMitigate, 0x5151);
+
+ /* Work around for RxFIFO overflow. */
+ if (tp->mac_version == RTL_GIGA_MAC_VER_11) {
+ tp->intr_event |= RxFIFOOver | PCSTimeout;
+ tp->intr_event &= ~RxOverflow;
+ }
+
+ rtl_set_rx_tx_desc_registers(tp, ioaddr);
+
+ RTL_W8(Cfg9346, Cfg9346_Lock);
+
+ RTL_R8(IntrMask);
+
+ RTL_W32(RxMissed, 0);
+
+ rtl_set_rx_mode(dev);
+
+ RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb);
+
+ RTL_W16(MultiIntr, RTL_R16(MultiIntr) & 0xF000);
+
+ RTL_W16(IntrMask, tp->intr_event);
+}
+
+static void rtl_hw_start_8101(struct net_device *dev)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->mmio_addr;
+ struct pci_dev *pdev = tp->pci_dev;
+
+ if ((tp->mac_version == RTL_GIGA_MAC_VER_13) ||
+ (tp->mac_version == RTL_GIGA_MAC_VER_16)) {
+ pci_write_config_word(pdev, 0x68, 0x00);
+ pci_write_config_word(pdev, 0x69, 0x08);
+ }
+
+ RTL_W8(Cfg9346, Cfg9346_Unlock);
+
+ RTL_W8(EarlyTxThres, EarlyTxThld);
+
+ rtl_set_rx_max_size(ioaddr);
+
+ tp->cp_cmd |= rtl_rw_cpluscmd(ioaddr) | PCIMulRW;
+
+ RTL_W16(CPlusCmd, tp->cp_cmd);
+
+ RTL_W16(IntrMitigate, 0x0000);
+
+ rtl_set_rx_tx_desc_registers(tp, ioaddr);
+
+ RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb);
+ rtl_set_rx_tx_config_registers(tp);
+
+ RTL_W8(Cfg9346, Cfg9346_Lock);
+
+ RTL_R8(IntrMask);
+
+ RTL_W32(RxMissed, 0);
+
+ rtl_set_rx_mode(dev);
+
+ RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb);
+
+ RTL_W16(MultiIntr, RTL_R16(MultiIntr) & 0xf000);
+
+ RTL_W16(IntrMask, tp->intr_event);
+}
+
+static int rtl8169_change_mtu(struct net_device *dev, int new_mtu)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ int ret = 0;
+
+ if (new_mtu < ETH_ZLEN || new_mtu > SafeMtu)
+ return -EINVAL;
+
+ dev->mtu = new_mtu;
+
+ if (!netif_running(dev))
+ goto out;
+
+ rtl8169_down(dev);
+
+ rtl8169_set_rxbufsize(tp, dev);
+
+ ret = rtl8169_init_ring(dev);
+ if (ret < 0)
+ goto out;
+
+#ifdef CONFIG_R8169_NAPI
+ napi_enable(&tp->napi);
+#endif
+
+ rtl_hw_start(dev);
+
+ rtl8169_request_timer(dev);
+
+out:
+ return ret;
+}
+
+static inline void rtl8169_make_unusable_by_asic(struct RxDesc *desc)
+{
+ desc->addr = 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 */
+#ifdef CONFIG_R8169_NAPI
+ napi_disable(&tp->napi);
+#endif
+
+ rtl8169_irq_mask_and_ack(ioaddr);
+
+#ifdef CONFIG_R8169_NAPI
+ tp->intr_mask = 0xffff;
+ RTL_W16(IntrMask, tp->intr_event);
+ napi_enable(&tp->napi);
+#endif
+}
+
+static void rtl8169_reinit_task(struct work_struct *work)
+{
+ struct rtl8169_private *tp =
+ container_of(work, struct rtl8169_private, task.work);
+ struct net_device *dev = tp->dev;
+ int ret;
+
+ rtnl_lock();
+
+ if (!netif_running(dev))
+ goto out_unlock;
+
+ rtl8169_wait_for_quiescence(dev);
+ rtl8169_close(dev);
+
+ ret = rtl8169_open(dev);
+ if (unlikely(ret < 0)) {
+ if (net_ratelimit() && netif_msg_drv(tp)) {
+ printk(KERN_ERR PFX "%s: reinit failure (status = %d)."
+ " Rescheduling.\n", dev->name, ret);
+ }
+ rtl8169_schedule_work(dev, rtl8169_reinit_task);
+ }
+
+out_unlock:
+ rtnl_unlock();
+}
+
+static void rtl8169_reset_task(struct work_struct *work)
+{
+ struct rtl8169_private *tp =
+ container_of(work, struct rtl8169_private, task.work);
+ struct net_device *dev = tp->dev;
+
+ rtnl_lock();
+
+ if (!netif_running(dev))
+ goto out_unlock;
+
+ rtl8169_wait_for_quiescence(dev);
+
+ rtl8169_rx_interrupt(dev, tp, tp->mmio_addr, ~(u32)0);
+ rtl8169_tx_clear(tp);
+
+ if (tp->dirty_rx == tp->cur_rx) {
+ rtl8169_init_ring_indexes(tp);
+ rtl_hw_start(dev);
+ netif_wake_queue(dev);
+ rtl8169_check_link_status(dev, tp, tp->mmio_addr);
+ } else {
+ if (net_ratelimit() && netif_msg_intr(tp)) {
+ printk(KERN_EMERG PFX "%s: Rx buffers shortage\n",
+ dev->name);
+ }
+ rtl8169_schedule_work(dev, rtl8169_reset_task);
+ }
+
+out_unlock:
+ rtnl_unlock();
+}
+
+static void rtl8169_tx_timeout(struct net_device *dev)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+
+ rtl8169_hw_reset(tp->mmio_addr);
+
+ /* Let's wait a bit while any (async) irq lands on */
+ rtl8169_schedule_work(dev, rtl8169_reset_task);
+}
+
+static int rtl8169_xmit_frags(struct rtl8169_private *tp, struct sk_buff *skb,
+ u32 opts1)
+{
+ struct skb_shared_info *info = skb_shinfo(skb);
+ unsigned int cur_frag, entry;
+ struct TxDesc * uninitialized_var(txd);
+
+ entry = tp->cur_tx;
+ for (cur_frag = 0; cur_frag < info->nr_frags; cur_frag++) {
+ skb_frag_t *frag = info->frags + cur_frag;
+ dma_addr_t mapping;
+ u32 status, len;
+ void *addr;
+
+ entry = (entry + 1) % NUM_TX_DESC;
+
+ txd = tp->TxDescArray + entry;
+ len = frag->size;
+ addr = ((void *) page_address(frag->page)) + frag->page_offset;
+ mapping = pci_map_single(tp->pci_dev, addr, len, PCI_DMA_TODEVICE);
+
+ /* anti gcc 2.95.3 bugware (sic) */
+ status = opts1 | len | (RingEnd * !((entry + 1) % NUM_TX_DESC));
+
+ txd->opts1 = cpu_to_le32(status);
+ txd->addr = cpu_to_le64(mapping);
+
+ tp->tx_skb[entry].len = len;
+ }
+
+ if (cur_frag) {
+ tp->tx_skb[entry].skb = skb;
+ txd->opts1 |= cpu_to_le32(LastFrag);
+ }
+
+ return cur_frag;
+}
+
+static inline u32 rtl8169_tso_csum(struct sk_buff *skb, struct net_device *dev)
+{
+ if (dev->features & NETIF_F_TSO) {
+ u32 mss = skb_shinfo(skb)->gso_size;
+
+ if (mss)
+ return LargeSend | ((mss & MSSMask) << MSSShift);
+ }
+ if (skb->ip_summed == CHECKSUM_PARTIAL) {
+ const struct iphdr *ip = ip_hdr(skb);
+
+ if (ip->protocol == IPPROTO_TCP)
+ return IPCS | TCPCS;
+ else if (ip->protocol == IPPROTO_UDP)
+ return IPCS | UDPCS;
+ WARN_ON(1); /* we need a WARN() */
+ }
+ return 0;
+}
+
+static int rtl8169_start_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ unsigned int frags, entry = tp->cur_tx % NUM_TX_DESC;
+ struct TxDesc *txd = tp->TxDescArray + entry;
+ void __iomem *ioaddr = tp->mmio_addr;
+ dma_addr_t mapping;
+ u32 status, len;
+ u32 opts1;
+ int ret = NETDEV_TX_OK;
+
+ if (unlikely(TX_BUFFS_AVAIL(tp) < skb_shinfo(skb)->nr_frags)) {
+ if (netif_msg_drv(tp)) {
+ printk(KERN_ERR
+ "%s: BUG! Tx Ring full when queue awake!\n",
+ dev->name);
+ }
+ goto err_stop;
+ }
+
+ if (unlikely(le32_to_cpu(txd->opts1) & DescOwn))
+ goto err_stop;
+
+ opts1 = DescOwn | rtl8169_tso_csum(skb, dev);
+
+ frags = rtl8169_xmit_frags(tp, skb, opts1);
+ if (frags) {
+ len = skb_headlen(skb);
+ opts1 |= FirstFrag;
+ } else {
+ len = skb->len;
+
+ if (unlikely(len < ETH_ZLEN)) {
+ if (skb_padto(skb, ETH_ZLEN))
+ goto err_update_stats;
+ len = ETH_ZLEN;
+ }
+
+ opts1 |= FirstFrag | LastFrag;
+ tp->tx_skb[entry].skb = skb;
+ }
+
+ mapping = pci_map_single(tp->pci_dev, skb->data, len, PCI_DMA_TODEVICE);
+
+ tp->tx_skb[entry].len = len;
+ txd->addr = cpu_to_le64(mapping);
+ txd->opts2 = cpu_to_le32(rtl8169_tx_vlan_tag(tp, skb));
+
+ wmb();
+
+ /* anti gcc 2.95.3 bugware (sic) */
+ status = opts1 | len | (RingEnd * !((entry + 1) % NUM_TX_DESC));
+ txd->opts1 = cpu_to_le32(status);
+
+ dev->trans_start = jiffies;
+
+ tp->cur_tx += frags + 1;
+
+ smp_wmb();
+
+ RTL_W8(TxPoll, NPQ); /* set polling bit */
+
+ if (TX_BUFFS_AVAIL(tp) < MAX_SKB_FRAGS) {
+ netif_stop_queue(dev);
+ smp_rmb();
+ if (TX_BUFFS_AVAIL(tp) >= MAX_SKB_FRAGS)
+ netif_wake_queue(dev);
+ }
+
+out:
+ return ret;
+
+err_stop:
+ netif_stop_queue(dev);
+ ret = NETDEV_TX_BUSY;
+err_update_stats:
+ dev->stats.tx_dropped++;
+ goto out;
+}
+
+static void rtl8169_pcierr_interrupt(struct net_device *dev)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ struct pci_dev *pdev = tp->pci_dev;
+ void __iomem *ioaddr = tp->mmio_addr;
+ u16 pci_status, pci_cmd;
+
+ pci_read_config_word(pdev, PCI_COMMAND, &pci_cmd);
+ pci_read_config_word(pdev, PCI_STATUS, &pci_status);
+
+ if (netif_msg_intr(tp)) {
+ printk(KERN_ERR
+ "%s: PCI error (cmd = 0x%04x, status = 0x%04x).\n",
+ dev->name, pci_cmd, pci_status);
+ }
+
+ /*
+ * The recovery sequence below admits a very elaborated explanation:
+ * - it seems to work;
+ * - I did not see what else could be done;
+ * - it makes iop3xx happy.
+ *
+ * Feel free to adjust to your needs.
+ */
+ if (pdev->broken_parity_status)
+ pci_cmd &= ~PCI_COMMAND_PARITY;
+ else
+ pci_cmd |= PCI_COMMAND_SERR | PCI_COMMAND_PARITY;
+
+ pci_write_config_word(pdev, PCI_COMMAND, pci_cmd);
+
+ pci_write_config_word(pdev, PCI_STATUS,
+ pci_status & (PCI_STATUS_DETECTED_PARITY |
+ PCI_STATUS_SIG_SYSTEM_ERROR | PCI_STATUS_REC_MASTER_ABORT |
+ PCI_STATUS_REC_TARGET_ABORT | PCI_STATUS_SIG_TARGET_ABORT));
+
+ /* The infamous DAC f*ckup only happens at boot time */
+ if ((tp->cp_cmd & PCIDAC) && !tp->dirty_rx && !tp->cur_rx) {
+ if (netif_msg_intr(tp))
+ printk(KERN_INFO "%s: disabling PCI DAC.\n", dev->name);
+ tp->cp_cmd &= ~PCIDAC;
+ RTL_W16(CPlusCmd, tp->cp_cmd);
+ dev->features &= ~NETIF_F_HIGHDMA;
+ }
+
+ rtl8169_hw_reset(ioaddr);
+
+ rtl8169_schedule_work(dev, rtl8169_reinit_task);
+}
+
+static void rtl8169_tx_interrupt(struct net_device *dev,
+ struct rtl8169_private *tp,
+ void __iomem *ioaddr)
+{
+ unsigned int dirty_tx, tx_left;
+
+ dirty_tx = tp->dirty_tx;
+ smp_rmb();
+ tx_left = tp->cur_tx - dirty_tx;
+
+ while (tx_left > 0) {
+ unsigned int entry = dirty_tx % NUM_TX_DESC;
+ struct ring_info *tx_skb = tp->tx_skb + entry;
+ u32 len = tx_skb->len;
+ u32 status;
+
+ rmb();
+ status = le32_to_cpu(tp->TxDescArray[entry].opts1);
+ if (status & DescOwn)
+ break;
+
+ dev->stats.tx_bytes += len;
+ dev->stats.tx_packets++;
+
+ rtl8169_unmap_tx_skb(tp->pci_dev, tx_skb, tp->TxDescArray + entry);
+
+ if (status & LastFrag) {
+ dev_kfree_skb_irq(tx_skb->skb);
+ tx_skb->skb = NULL;
+ }
+ dirty_tx++;
+ tx_left--;
+ }
+
+ if (tp->dirty_tx != dirty_tx) {
+ tp->dirty_tx = dirty_tx;
+ smp_wmb();
+ if (netif_queue_stopped(dev) &&
+ (TX_BUFFS_AVAIL(tp) >= MAX_SKB_FRAGS)) {
+ netif_wake_queue(dev);
+ }
+ /*
+ * 8168 hack: TxPoll requests are lost when the Tx packets are
+ * too close. Let's kick an extra TxPoll request when a burst
+ * of start_xmit activity is detected (if it is not detected,
+ * it is slow enough). -- FR
+ */
+ smp_rmb();
+ if (tp->cur_tx != dirty_tx)
+ RTL_W8(TxPoll, NPQ);
+ }
+}
+
+static inline int rtl8169_fragmented_frame(u32 status)
+{
+ return (status & (FirstFrag | LastFrag)) != (FirstFrag | LastFrag);
+}
+
+static inline void rtl8169_rx_csum(struct sk_buff *skb, struct RxDesc *desc)
+{
+ u32 opts1 = le32_to_cpu(desc->opts1);
+ u32 status = opts1 & RxProtoMask;
+
+ if (((status == RxProtoTCP) && !(opts1 & TCPFail)) ||
+ ((status == RxProtoUDP) && !(opts1 & UDPFail)) ||
+ ((status == RxProtoIP) && !(opts1 & IPFail)))
+ skb->ip_summed = CHECKSUM_UNNECESSARY;
+ else
+ skb->ip_summed = CHECKSUM_NONE;
+}
+
+static inline bool rtl8169_try_rx_copy(struct sk_buff **sk_buff,
+ struct rtl8169_private *tp, int pkt_size,
+ dma_addr_t addr)
+{
+ struct sk_buff *skb;
+ bool done = false;
+
+ if (pkt_size >= rx_copybreak)
+ goto out;
+
+ skb = netdev_alloc_skb(tp->dev, pkt_size + NET_IP_ALIGN);
+ if (!skb)
+ goto out;
+
+ pci_dma_sync_single_for_cpu(tp->pci_dev, addr, pkt_size,
+ PCI_DMA_FROMDEVICE);
+ skb_reserve(skb, NET_IP_ALIGN);
+ skb_copy_from_linear_data(*sk_buff, skb->data, pkt_size);
+ *sk_buff = skb;
+ done = true;
+out:
+ return done;
+}
+
+static int rtl8169_rx_interrupt(struct net_device *dev,
+ struct rtl8169_private *tp,
+ void __iomem *ioaddr, u32 budget)
+{
+ unsigned int cur_rx, rx_left;
+ unsigned int delta, count;
+
+ cur_rx = tp->cur_rx;
+ rx_left = NUM_RX_DESC + tp->dirty_rx - cur_rx;
+ rx_left = rtl8169_rx_quota(rx_left, budget);
+
+ for (; rx_left > 0; rx_left--, cur_rx++) {
+ unsigned int entry = cur_rx % NUM_RX_DESC;
+ struct RxDesc *desc = tp->RxDescArray + entry;
+ u32 status;
+
+ rmb();
+ status = le32_to_cpu(desc->opts1);
+
+ if (status & DescOwn)
+ break;
+ if (unlikely(status & RxRES)) {
+ if (netif_msg_rx_err(tp)) {
+ printk(KERN_INFO
+ "%s: Rx ERROR. status = %08x\n",
+ dev->name, status);
+ }
+ dev->stats.rx_errors++;
+ if (status & (RxRWT | RxRUNT))
+ dev->stats.rx_length_errors++;
+ if (status & RxCRC)
+ dev->stats.rx_crc_errors++;
+ if (status & RxFOVF) {
+ rtl8169_schedule_work(dev, rtl8169_reset_task);
+ dev->stats.rx_fifo_errors++;
+ }
+ rtl8169_mark_to_asic(desc, tp->rx_buf_sz);
+ } else {
+ struct sk_buff *skb = tp->Rx_skbuff[entry];
+ dma_addr_t addr = le64_to_cpu(desc->addr);
+ int pkt_size = (status & 0x00001FFF) - 4;
+ struct pci_dev *pdev = tp->pci_dev;
+
+ /*
+ * The driver does not support incoming fragmented
+ * frames. They are seen as a symptom of over-mtu
+ * sized frames.
+ */
+ if (unlikely(rtl8169_fragmented_frame(status))) {
+ dev->stats.rx_dropped++;
+ dev->stats.rx_length_errors++;
+ rtl8169_mark_to_asic(desc, tp->rx_buf_sz);
+ continue;
+ }
+
+ rtl8169_rx_csum(skb, desc);
+
+ if (rtl8169_try_rx_copy(&skb, tp, pkt_size, addr)) {
+ pci_dma_sync_single_for_device(pdev, addr,
+ pkt_size, PCI_DMA_FROMDEVICE);
+ rtl8169_mark_to_asic(desc, tp->rx_buf_sz);
+ } else {
+ pci_unmap_single(pdev, addr, pkt_size,
+ PCI_DMA_FROMDEVICE);
+ tp->Rx_skbuff[entry] = NULL;
+ }
+
+ skb_put(skb, pkt_size);
+ skb->protocol = eth_type_trans(skb, dev);
+
+ if (rtl8169_rx_vlan_skb(tp, desc, skb) < 0)
+ rtl8169_rx_skb(skb);
+
+ dev->last_rx = jiffies;
+ dev->stats.rx_bytes += pkt_size;
+ dev->stats.rx_packets++;
+ }
+
+ /* Work around for AMD plateform. */
+ if ((desc->opts2 & 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);
+ int boguscnt = max_interrupt_work;
+ void __iomem *ioaddr = tp->mmio_addr;
+ int status;
+ int handled = 0;
+
+ do {
+ status = RTL_R16(IntrStatus);
+
+ /* hotplug/major error/no more work/shared irq */
+ if ((status == 0xFFFF) || !status)
+ break;
+
+ handled = 1;
+
+ if (unlikely(!netif_running(dev))) {
+ rtl8169_asic_down(ioaddr);
+ goto out;
+ }
+
+ status &= tp->intr_mask;
+ RTL_W16(IntrStatus,
+ (status & RxFIFOOver) ? (status | RxOverflow) : status);
+
+ if (!(status & tp->intr_event))
+ break;
+
+ /* Work around for rx fifo overflow */
+ if (unlikely(status & RxFIFOOver) &&
+ (tp->mac_version == RTL_GIGA_MAC_VER_11)) {
+ netif_stop_queue(dev);
+ rtl8169_tx_timeout(dev);
+ break;
+ }
+
+ if (unlikely(status & SYSErr)) {
+ rtl8169_pcierr_interrupt(dev);
+ break;
+ }
+
+ if (status & LinkChg)
+ rtl8169_check_link_status(dev, tp, ioaddr);
+
+#ifdef CONFIG_R8169_NAPI
+ if (status & tp->napi_event) {
+ RTL_W16(IntrMask, tp->intr_event & ~tp->napi_event);
+ tp->intr_mask = ~tp->napi_event;
+
+ if (likely(netif_rx_schedule_prep(dev, &tp->napi)))
+ __netif_rx_schedule(dev, &tp->napi);
+ else if (netif_msg_intr(tp)) {
+ printk(KERN_INFO "%s: interrupt %04x in poll\n",
+ dev->name, status);
+ }
+ }
+ break;
+#else
+ /* Rx interrupt */
+ if (status & (RxOK | RxOverflow | RxFIFOOver))
+ rtl8169_rx_interrupt(dev, tp, ioaddr, ~(u32)0);
+
+ /* Tx interrupt */
+ if (status & (TxOK | TxErr))
+ rtl8169_tx_interrupt(dev, tp, ioaddr);
+#endif
+
+ boguscnt--;
+ } while (boguscnt > 0);
+
+ if (boguscnt <= 0) {
+ if (netif_msg_intr(tp) && net_ratelimit() ) {
+ printk(KERN_WARNING
+ "%s: Too much work at interrupt!\n", dev->name);
+ }
+ /* Clear all interrupt sources. */
+ RTL_W16(IntrStatus, 0xffff);
+ }
+out:
+ return IRQ_RETVAL(handled);
+}
+
+#ifdef CONFIG_R8169_NAPI
+static int rtl8169_poll(struct napi_struct *napi, int budget)
+{
+ struct rtl8169_private *tp = container_of(napi, struct rtl8169_private, napi);
+ struct net_device *dev = tp->dev;
+ void __iomem *ioaddr = tp->mmio_addr;
+ int work_done;
+
+ work_done = rtl8169_rx_interrupt(dev, tp, ioaddr, (u32) budget);
+ rtl8169_tx_interrupt(dev, tp, ioaddr);
+
+ if (work_done < budget) {
+ netif_rx_complete(dev, napi);
+ tp->intr_mask = 0xffff;
+ /*
+ * 20040426: the barrier is not strictly required but the
+ * behavior of the irq handler could be less predictable
+ * without it. Btw, the lack of flush for the posted pci
+ * write is safe - FR
+ */
+ smp_wmb();
+ RTL_W16(IntrMask, tp->intr_event);
+ }
+
+ return work_done;
+}
+#endif
+
+static void rtl8169_down(struct net_device *dev)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->mmio_addr;
+ unsigned int intrmask;
+
+ rtl8169_delete_timer(dev);
+
+ netif_stop_queue(dev);
+
+#ifdef CONFIG_R8169_NAPI
+ napi_disable(&tp->napi);
+#endif
+
+core_down:
+ spin_lock_irq(&tp->lock);
+
+ rtl8169_asic_down(ioaddr);
+
+ /* Update the error counts. */
+ dev->stats.rx_missed_errors += RTL_R32(RxMissed);
+ RTL_W32(RxMissed, 0);
+
+ spin_unlock_irq(&tp->lock);
+
+ synchronize_irq(dev->irq);
+
+ /* Give a racing hard_start_xmit a few cycles to complete. */
+ synchronize_sched(); /* FIXME: should this be synchronize_irq()? */
+
+ /*
+ * And now for the 50k$ question: are IRQ disabled or not ?
+ *
+ * Two paths lead here:
+ * 1) dev->close
+ * -> netif_running() is available to sync the current code and the
+ * IRQ handler. See rtl8169_interrupt for details.
+ * 2) dev->change_mtu
+ * -> rtl8169_poll can not be issued again and re-enable the
+ * interruptions. Let's simply issue the IRQ down sequence again.
+ *
+ * No loop if hotpluged or major error (0xffff).
+ */
+ intrmask = RTL_R16(IntrMask);
+ if (intrmask && (intrmask != 0xffff))
+ goto core_down;
+
+ rtl8169_tx_clear(tp);
+
+ rtl8169_rx_clear(tp);
+}
+
+static int rtl8169_close(struct net_device *dev)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ struct pci_dev *pdev = tp->pci_dev;
+
+ rtl8169_down(dev);
+
+ free_irq(dev->irq, dev);
+
+ pci_free_consistent(pdev, R8169_RX_RING_BYTES, tp->RxDescArray,
+ tp->RxPhyAddr);
+ pci_free_consistent(pdev, R8169_TX_RING_BYTES, tp->TxDescArray,
+ tp->TxPhyAddr);
+ tp->TxDescArray = NULL;
+ tp->RxDescArray = NULL;
+
+ return 0;
+}
+
+static void rtl_set_rx_mode(struct net_device *dev)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->mmio_addr;
+ unsigned long flags;
+ u32 mc_filter[2]; /* Multicast hash filter */
+ int rx_mode;
+ u32 tmp = 0;
+
+ if (dev->flags & IFF_PROMISC) {
+ /* Unconditionally log net taps. */
+ if (netif_msg_link(tp)) {
+ printk(KERN_NOTICE "%s: Promiscuous mode enabled.\n",
+ dev->name);
+ }
+ rx_mode =
+ AcceptBroadcast | AcceptMulticast | AcceptMyPhys |
+ AcceptAllPhys;
+ mc_filter[1] = mc_filter[0] = 0xffffffff;
+ } else if ((dev->mc_count > multicast_filter_limit)
+ || (dev->flags & IFF_ALLMULTI)) {
+ /* Too many to filter perfectly -- accept all multicasts. */
+ rx_mode = AcceptBroadcast | AcceptMulticast | AcceptMyPhys;
+ mc_filter[1] = mc_filter[0] = 0xffffffff;
+ } else {
+ struct dev_mc_list *mclist;
+ unsigned int i;
+
+ rx_mode = AcceptBroadcast | AcceptMyPhys;
+ mc_filter[1] = mc_filter[0] = 0;
+ for (i = 0, mclist = dev->mc_list; mclist && i < dev->mc_count;
+ i++, mclist = mclist->next) {
+ int bit_nr = ether_crc(ETH_ALEN, mclist->dmi_addr) >> 26;
+ mc_filter[bit_nr >> 5] |= 1 << (bit_nr & 31);
+ rx_mode |= AcceptMulticast;
+ }
+ }
+
+ spin_lock_irqsave(&tp->lock, flags);
+
+ tmp = rtl8169_rx_config | rx_mode |
+ (RTL_R32(RxConfig) & rtl_chip_info[tp->chipset].RxConfigMask);
+
+ if ((tp->mac_version == RTL_GIGA_MAC_VER_11) ||
+ (tp->mac_version == RTL_GIGA_MAC_VER_12) ||
+ (tp->mac_version == RTL_GIGA_MAC_VER_13) ||
+ (tp->mac_version == RTL_GIGA_MAC_VER_14) ||
+ (tp->mac_version == RTL_GIGA_MAC_VER_15) ||
+ (tp->mac_version == RTL_GIGA_MAC_VER_16) ||
+ (tp->mac_version == RTL_GIGA_MAC_VER_17)) {
+ mc_filter[0] = 0xffffffff;
+ mc_filter[1] = 0xffffffff;
+ }
+
+ RTL_W32(MAR0 + 0, mc_filter[0]);
+ RTL_W32(MAR0 + 4, mc_filter[1]);
+
+ RTL_W32(RxConfig, tmp);
+
+ spin_unlock_irqrestore(&tp->lock, flags);
+}
+
+/**
+ * rtl8169_get_stats - Get rtl8169 read/write statistics
+ * @dev: The Ethernet Device to get statistics for
+ *
+ * Get TX/RX statistics for rtl8169
+ */
+static struct net_device_stats *rtl8169_get_stats(struct net_device *dev)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->mmio_addr;
+ unsigned long flags;
+
+ if (netif_running(dev)) {
+ spin_lock_irqsave(&tp->lock, flags);
+ dev->stats.rx_missed_errors += RTL_R32(RxMissed);
+ RTL_W32(RxMissed, 0);
+ spin_unlock_irqrestore(&tp->lock, flags);
+ }
+
+ return &dev->stats;
+}
+
+#ifdef CONFIG_PM
+
+static int rtl8169_suspend(struct pci_dev *pdev, pm_message_t state)
+{
+ struct net_device *dev = pci_get_drvdata(pdev);
+ struct rtl8169_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->mmio_addr;
+
+ if (!netif_running(dev))
+ goto out_pci_suspend;
+
+ netif_device_detach(dev);
+ netif_stop_queue(dev);
+
+ spin_lock_irq(&tp->lock);
+
+ rtl8169_asic_down(ioaddr);
+
+ dev->stats.rx_missed_errors += RTL_R32(RxMissed);
+ RTL_W32(RxMissed, 0);
+
+ spin_unlock_irq(&tp->lock);
+
+out_pci_suspend:
+ pci_save_state(pdev);
+ pci_enable_wake(pdev, pci_choose_state(pdev, state),
+ (tp->features & RTL_FEATURE_WOL) ? 1 : 0);
+ pci_set_power_state(pdev, pci_choose_state(pdev, state));
+
+ return 0;
+}
+
+static int rtl8169_resume(struct pci_dev *pdev)
+{
+ struct net_device *dev = pci_get_drvdata(pdev);
+
+ pci_set_power_state(pdev, PCI_D0);
+ pci_restore_state(pdev);
+ pci_enable_wake(pdev, PCI_D0, 0);
+
+ if (!netif_running(dev))
+ goto out;
+
+ netif_device_attach(dev);
+
+ rtl8169_schedule_work(dev, rtl8169_reset_task);
+out:
+ return 0;
+}
+
+#endif /* CONFIG_PM */
+
+static struct pci_driver rtl8169_pci_driver = {
+ .name = MODULENAME,
+ .id_table = rtl8169_pci_tbl,
+ .probe = rtl8169_init_one,
+ .remove = __devexit_p(rtl8169_remove_one),
+#ifdef CONFIG_PM
+ .suspend = rtl8169_suspend,
+ .resume = rtl8169_resume,
+#endif
+};
+
+static int __init rtl8169_init_module(void)
+{
+ return pci_register_driver(&rtl8169_pci_driver);
+}
+
+static void __exit rtl8169_cleanup_module(void)
+{
+ pci_unregister_driver(&rtl8169_pci_driver);
+}
+
+module_init(rtl8169_init_module);
+module_exit(rtl8169_cleanup_module);