2 * r8169.c: RealTek 8169/8168/8101 ethernet driver.
4 * Copyright (c) 2002 ShuChen <shuchen@realtek.com.tw>
5 * Copyright (c) 2003 - 2007 Francois Romieu <romieu@fr.zoreil.com>
6 * Copyright (c) a lot of people too. Please respect their work.
8 * See MAINTAINERS file for support contact information.
11 #include <linux/module.h>
12 #include <linux/moduleparam.h>
13 #include <linux/pci.h>
14 #include <linux/netdevice.h>
15 #include <linux/etherdevice.h>
16 #include <linux/delay.h>
17 #include <linux/ethtool.h>
18 #include <linux/mii.h>
19 #include <linux/if_vlan.h>
20 #include <linux/crc32.h>
23 #include <linux/tcp.h>
24 #include <linux/init.h>
25 #include <linux/dma-mapping.h>
26 #include <linux/pm_runtime.h>
28 #include <asm/system.h>
32 #define RTL8169_VERSION "2.3LK-NAPI"
33 #define MODULENAME "r8169"
34 #define PFX MODULENAME ": "
37 #define assert(expr) \
39 printk( "Assertion failed! %s,%s,%s,line=%d\n", \
40 #expr,__FILE__,__func__,__LINE__); \
42 #define dprintk(fmt, args...) \
43 do { printk(KERN_DEBUG PFX fmt, ## args); } while (0)
45 #define assert(expr) do {} while (0)
46 #define dprintk(fmt, args...) do {} while (0)
47 #endif /* RTL8169_DEBUG */
49 #define R8169_MSG_DEFAULT \
50 (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_IFUP | NETIF_MSG_IFDOWN)
52 #define TX_BUFFS_AVAIL(tp) \
53 (tp->dirty_tx + NUM_TX_DESC - tp->cur_tx - 1)
55 /* Maximum number of multicast addresses to filter (vs. Rx-all-multicast).
56 The RTL chips use a 64 element hash table based on the Ethernet CRC. */
57 static const int multicast_filter_limit = 32;
59 /* MAC address length */
60 #define MAC_ADDR_LEN 6
62 #define MAX_READ_REQUEST_SHIFT 12
63 #define RX_FIFO_THRESH 7 /* 7 means NO threshold, Rx buffer level before first PCI xfer. */
64 #define RX_DMA_BURST 6 /* Maximum PCI burst, '6' is 1024 */
65 #define TX_DMA_BURST 6 /* Maximum PCI burst, '6' is 1024 */
66 #define EarlyTxThld 0x3F /* 0x3F means NO early transmit */
67 #define SafeMtu 0x1c20 /* ... actually life sucks beyond ~7k */
68 #define InterFrameGap 0x03 /* 3 means InterFrameGap = the shortest one */
70 #define R8169_REGS_SIZE 256
71 #define R8169_NAPI_WEIGHT 64
72 #define NUM_TX_DESC 64 /* Number of Tx descriptor registers */
73 #define NUM_RX_DESC 256 /* Number of Rx descriptor registers */
74 #define RX_BUF_SIZE 1536 /* Rx Buffer size */
75 #define R8169_TX_RING_BYTES (NUM_TX_DESC * sizeof(struct TxDesc))
76 #define R8169_RX_RING_BYTES (NUM_RX_DESC * sizeof(struct RxDesc))
78 #define RTL8169_TX_TIMEOUT (6*HZ)
79 #define RTL8169_PHY_TIMEOUT (10*HZ)
81 #define RTL_EEPROM_SIG cpu_to_le32(0x8129)
82 #define RTL_EEPROM_SIG_MASK cpu_to_le32(0xffff)
83 #define RTL_EEPROM_SIG_ADDR 0x0000
85 /* write/read MMIO register */
86 #define RTL_W8(reg, val8) writeb ((val8), ioaddr + (reg))
87 #define RTL_W16(reg, val16) writew ((val16), ioaddr + (reg))
88 #define RTL_W32(reg, val32) writel ((val32), ioaddr + (reg))
89 #define RTL_R8(reg) readb (ioaddr + (reg))
90 #define RTL_R16(reg) readw (ioaddr + (reg))
91 #define RTL_R32(reg) ((unsigned long) readl (ioaddr + (reg)))
94 RTL_GIGA_MAC_NONE = 0x00,
95 RTL_GIGA_MAC_VER_01 = 0x01, // 8169
96 RTL_GIGA_MAC_VER_02 = 0x02, // 8169S
97 RTL_GIGA_MAC_VER_03 = 0x03, // 8110S
98 RTL_GIGA_MAC_VER_04 = 0x04, // 8169SB
99 RTL_GIGA_MAC_VER_05 = 0x05, // 8110SCd
100 RTL_GIGA_MAC_VER_06 = 0x06, // 8110SCe
101 RTL_GIGA_MAC_VER_07 = 0x07, // 8102e
102 RTL_GIGA_MAC_VER_08 = 0x08, // 8102e
103 RTL_GIGA_MAC_VER_09 = 0x09, // 8102e
104 RTL_GIGA_MAC_VER_10 = 0x0a, // 8101e
105 RTL_GIGA_MAC_VER_11 = 0x0b, // 8168Bb
106 RTL_GIGA_MAC_VER_12 = 0x0c, // 8168Be
107 RTL_GIGA_MAC_VER_13 = 0x0d, // 8101Eb
108 RTL_GIGA_MAC_VER_14 = 0x0e, // 8101 ?
109 RTL_GIGA_MAC_VER_15 = 0x0f, // 8101 ?
110 RTL_GIGA_MAC_VER_16 = 0x11, // 8101Ec
111 RTL_GIGA_MAC_VER_17 = 0x10, // 8168Bf
112 RTL_GIGA_MAC_VER_18 = 0x12, // 8168CP
113 RTL_GIGA_MAC_VER_19 = 0x13, // 8168C
114 RTL_GIGA_MAC_VER_20 = 0x14, // 8168C
115 RTL_GIGA_MAC_VER_21 = 0x15, // 8168C
116 RTL_GIGA_MAC_VER_22 = 0x16, // 8168C
117 RTL_GIGA_MAC_VER_23 = 0x17, // 8168CP
118 RTL_GIGA_MAC_VER_24 = 0x18, // 8168CP
119 RTL_GIGA_MAC_VER_25 = 0x19, // 8168D
120 RTL_GIGA_MAC_VER_26 = 0x1a, // 8168D
121 RTL_GIGA_MAC_VER_27 = 0x1b // 8168DP
124 #define _R(NAME,MAC,MASK) \
125 { .name = NAME, .mac_version = MAC, .RxConfigMask = MASK }
127 static const struct {
130 u32 RxConfigMask; /* Clears the bits supported by this chip */
131 } rtl_chip_info[] = {
132 _R("RTL8169", RTL_GIGA_MAC_VER_01, 0xff7e1880), // 8169
133 _R("RTL8169s", RTL_GIGA_MAC_VER_02, 0xff7e1880), // 8169S
134 _R("RTL8110s", RTL_GIGA_MAC_VER_03, 0xff7e1880), // 8110S
135 _R("RTL8169sb/8110sb", RTL_GIGA_MAC_VER_04, 0xff7e1880), // 8169SB
136 _R("RTL8169sc/8110sc", RTL_GIGA_MAC_VER_05, 0xff7e1880), // 8110SCd
137 _R("RTL8169sc/8110sc", RTL_GIGA_MAC_VER_06, 0xff7e1880), // 8110SCe
138 _R("RTL8102e", RTL_GIGA_MAC_VER_07, 0xff7e1880), // PCI-E
139 _R("RTL8102e", RTL_GIGA_MAC_VER_08, 0xff7e1880), // PCI-E
140 _R("RTL8102e", RTL_GIGA_MAC_VER_09, 0xff7e1880), // PCI-E
141 _R("RTL8101e", RTL_GIGA_MAC_VER_10, 0xff7e1880), // PCI-E
142 _R("RTL8168b/8111b", RTL_GIGA_MAC_VER_11, 0xff7e1880), // PCI-E
143 _R("RTL8168b/8111b", RTL_GIGA_MAC_VER_12, 0xff7e1880), // PCI-E
144 _R("RTL8101e", RTL_GIGA_MAC_VER_13, 0xff7e1880), // PCI-E 8139
145 _R("RTL8100e", RTL_GIGA_MAC_VER_14, 0xff7e1880), // PCI-E 8139
146 _R("RTL8100e", RTL_GIGA_MAC_VER_15, 0xff7e1880), // PCI-E 8139
147 _R("RTL8168b/8111b", RTL_GIGA_MAC_VER_17, 0xff7e1880), // PCI-E
148 _R("RTL8101e", RTL_GIGA_MAC_VER_16, 0xff7e1880), // PCI-E
149 _R("RTL8168cp/8111cp", RTL_GIGA_MAC_VER_18, 0xff7e1880), // PCI-E
150 _R("RTL8168c/8111c", RTL_GIGA_MAC_VER_19, 0xff7e1880), // PCI-E
151 _R("RTL8168c/8111c", RTL_GIGA_MAC_VER_20, 0xff7e1880), // PCI-E
152 _R("RTL8168c/8111c", RTL_GIGA_MAC_VER_21, 0xff7e1880), // PCI-E
153 _R("RTL8168c/8111c", RTL_GIGA_MAC_VER_22, 0xff7e1880), // PCI-E
154 _R("RTL8168cp/8111cp", RTL_GIGA_MAC_VER_23, 0xff7e1880), // PCI-E
155 _R("RTL8168cp/8111cp", RTL_GIGA_MAC_VER_24, 0xff7e1880), // PCI-E
156 _R("RTL8168d/8111d", RTL_GIGA_MAC_VER_25, 0xff7e1880), // PCI-E
157 _R("RTL8168d/8111d", RTL_GIGA_MAC_VER_26, 0xff7e1880), // PCI-E
158 _R("RTL8168dp/8111dp", RTL_GIGA_MAC_VER_27, 0xff7e1880) // PCI-E
168 static void rtl_hw_start_8169(struct net_device *);
169 static void rtl_hw_start_8168(struct net_device *);
170 static void rtl_hw_start_8101(struct net_device *);
172 static DEFINE_PCI_DEVICE_TABLE(rtl8169_pci_tbl) = {
173 { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8129), 0, 0, RTL_CFG_0 },
174 { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8136), 0, 0, RTL_CFG_2 },
175 { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8167), 0, 0, RTL_CFG_0 },
176 { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8168), 0, 0, RTL_CFG_1 },
177 { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8169), 0, 0, RTL_CFG_0 },
178 { PCI_DEVICE(PCI_VENDOR_ID_DLINK, 0x4300), 0, 0, RTL_CFG_0 },
179 { PCI_DEVICE(PCI_VENDOR_ID_AT, 0xc107), 0, 0, RTL_CFG_0 },
180 { PCI_DEVICE(0x16ec, 0x0116), 0, 0, RTL_CFG_0 },
181 { PCI_VENDOR_ID_LINKSYS, 0x1032,
182 PCI_ANY_ID, 0x0024, 0, 0, RTL_CFG_0 },
184 PCI_ANY_ID, 0x2410, 0, 0, RTL_CFG_2 },
188 MODULE_DEVICE_TABLE(pci, rtl8169_pci_tbl);
191 * we set our copybreak very high so that we don't have
192 * to allocate 16k frames all the time (see note in
195 static int rx_copybreak = 16383;
202 MAC0 = 0, /* Ethernet hardware address. */
204 MAR0 = 8, /* Multicast filter. */
205 CounterAddrLow = 0x10,
206 CounterAddrHigh = 0x14,
207 TxDescStartAddrLow = 0x20,
208 TxDescStartAddrHigh = 0x24,
209 TxHDescStartAddrLow = 0x28,
210 TxHDescStartAddrHigh = 0x2c,
233 RxDescAddrLow = 0xe4,
234 RxDescAddrHigh = 0xe8,
237 FuncEventMask = 0xf4,
238 FuncPresetState = 0xf8,
239 FuncForceEvent = 0xfc,
242 enum rtl8110_registers {
248 enum rtl8168_8101_registers {
251 #define CSIAR_FLAG 0x80000000
252 #define CSIAR_WRITE_CMD 0x80000000
253 #define CSIAR_BYTE_ENABLE 0x0f
254 #define CSIAR_BYTE_ENABLE_SHIFT 12
255 #define CSIAR_ADDR_MASK 0x0fff
258 #define EPHYAR_FLAG 0x80000000
259 #define EPHYAR_WRITE_CMD 0x80000000
260 #define EPHYAR_REG_MASK 0x1f
261 #define EPHYAR_REG_SHIFT 16
262 #define EPHYAR_DATA_MASK 0xffff
264 #define FIX_NAK_1 (1 << 4)
265 #define FIX_NAK_2 (1 << 3)
267 #define EFUSEAR_FLAG 0x80000000
268 #define EFUSEAR_WRITE_CMD 0x80000000
269 #define EFUSEAR_READ_CMD 0x00000000
270 #define EFUSEAR_REG_MASK 0x03ff
271 #define EFUSEAR_REG_SHIFT 8
272 #define EFUSEAR_DATA_MASK 0xff
275 enum rtl_register_content {
276 /* InterruptStatusBits */
280 TxDescUnavail = 0x0080,
302 /* TXPoll register p.5 */
303 HPQ = 0x80, /* Poll cmd on the high prio queue */
304 NPQ = 0x40, /* Poll cmd on the low prio queue */
305 FSWInt = 0x01, /* Forced software interrupt */
309 Cfg9346_Unlock = 0xc0,
314 AcceptBroadcast = 0x08,
315 AcceptMulticast = 0x04,
317 AcceptAllPhys = 0x01,
324 TxInterFrameGapShift = 24,
325 TxDMAShift = 8, /* DMA burst value (0-7) is shift this many bits */
327 /* Config1 register p.24 */
330 MSIEnable = (1 << 5), /* Enable Message Signaled Interrupt */
331 Speed_down = (1 << 4),
335 PMEnable = (1 << 0), /* Power Management Enable */
337 /* Config2 register p. 25 */
338 PCI_Clock_66MHz = 0x01,
339 PCI_Clock_33MHz = 0x00,
341 /* Config3 register p.25 */
342 MagicPacket = (1 << 5), /* Wake up when receives a Magic Packet */
343 LinkUp = (1 << 4), /* Wake up when the cable connection is re-established */
344 Beacon_en = (1 << 0), /* 8168 only. Reserved in the 8168b */
346 /* Config5 register p.27 */
347 BWF = (1 << 6), /* Accept Broadcast wakeup frame */
348 MWF = (1 << 5), /* Accept Multicast wakeup frame */
349 UWF = (1 << 4), /* Accept Unicast wakeup frame */
350 LanWake = (1 << 1), /* LanWake enable/disable */
351 PMEStatus = (1 << 0), /* PME status can be reset by PCI RST# */
354 TBIReset = 0x80000000,
355 TBILoopback = 0x40000000,
356 TBINwEnable = 0x20000000,
357 TBINwRestart = 0x10000000,
358 TBILinkOk = 0x02000000,
359 TBINwComplete = 0x01000000,
362 EnableBist = (1 << 15), // 8168 8101
363 Mac_dbgo_oe = (1 << 14), // 8168 8101
364 Normal_mode = (1 << 13), // unused
365 Force_half_dup = (1 << 12), // 8168 8101
366 Force_rxflow_en = (1 << 11), // 8168 8101
367 Force_txflow_en = (1 << 10), // 8168 8101
368 Cxpl_dbg_sel = (1 << 9), // 8168 8101
369 ASF = (1 << 8), // 8168 8101
370 PktCntrDisable = (1 << 7), // 8168 8101
371 Mac_dbgo_sel = 0x001c, // 8168
376 INTT_0 = 0x0000, // 8168
377 INTT_1 = 0x0001, // 8168
378 INTT_2 = 0x0002, // 8168
379 INTT_3 = 0x0003, // 8168
381 /* rtl8169_PHYstatus */
392 TBILinkOK = 0x02000000,
394 /* DumpCounterCommand */
398 enum desc_status_bit {
399 DescOwn = (1 << 31), /* Descriptor is owned by NIC */
400 RingEnd = (1 << 30), /* End of descriptor ring */
401 FirstFrag = (1 << 29), /* First segment of a packet */
402 LastFrag = (1 << 28), /* Final segment of a packet */
405 LargeSend = (1 << 27), /* TCP Large Send Offload (TSO) */
406 MSSShift = 16, /* MSS value position */
407 MSSMask = 0xfff, /* MSS value + LargeSend bit: 12 bits */
408 IPCS = (1 << 18), /* Calculate IP checksum */
409 UDPCS = (1 << 17), /* Calculate UDP/IP checksum */
410 TCPCS = (1 << 16), /* Calculate TCP/IP checksum */
411 TxVlanTag = (1 << 17), /* Add VLAN tag */
414 PID1 = (1 << 18), /* Protocol ID bit 1/2 */
415 PID0 = (1 << 17), /* Protocol ID bit 2/2 */
417 #define RxProtoUDP (PID1)
418 #define RxProtoTCP (PID0)
419 #define RxProtoIP (PID1 | PID0)
420 #define RxProtoMask RxProtoIP
422 IPFail = (1 << 16), /* IP checksum failed */
423 UDPFail = (1 << 15), /* UDP/IP checksum failed */
424 TCPFail = (1 << 14), /* TCP/IP checksum failed */
425 RxVlanTag = (1 << 16), /* VLAN tag available */
428 #define RsvdMask 0x3fffc000
445 u8 __pad[sizeof(void *) - sizeof(u32)];
449 RTL_FEATURE_WOL = (1 << 0),
450 RTL_FEATURE_MSI = (1 << 1),
451 RTL_FEATURE_GMII = (1 << 2),
454 struct rtl8169_counters {
461 __le32 tx_one_collision;
462 __le32 tx_multi_collision;
470 struct rtl8169_private {
471 void __iomem *mmio_addr; /* memory map physical address */
472 struct pci_dev *pci_dev; /* Index of PCI device */
473 struct net_device *dev;
474 struct napi_struct napi;
475 spinlock_t lock; /* spin lock flag */
479 u32 cur_rx; /* Index into the Rx descriptor buffer of next Rx pkt. */
480 u32 cur_tx; /* Index into the Tx descriptor buffer of next Rx pkt. */
483 struct TxDesc *TxDescArray; /* 256-aligned Tx descriptor ring */
484 struct RxDesc *RxDescArray; /* 256-aligned Rx descriptor ring */
485 dma_addr_t TxPhyAddr;
486 dma_addr_t RxPhyAddr;
487 struct sk_buff *Rx_skbuff[NUM_RX_DESC]; /* Rx data buffers */
488 struct ring_info tx_skb[NUM_TX_DESC]; /* Tx data buffers */
491 struct timer_list timer;
496 int phy_1000_ctrl_reg;
497 #ifdef CONFIG_R8169_VLAN
498 struct vlan_group *vlgrp;
500 int (*set_speed)(struct net_device *, u8 autoneg, u16 speed, u8 duplex);
501 int (*get_settings)(struct net_device *, struct ethtool_cmd *);
502 void (*phy_reset_enable)(void __iomem *);
503 void (*hw_start)(struct net_device *);
504 unsigned int (*phy_reset_pending)(void __iomem *);
505 unsigned int (*link_ok)(void __iomem *);
506 int (*do_ioctl)(struct rtl8169_private *tp, struct mii_ioctl_data *data, int cmd);
508 struct delayed_work task;
511 struct mii_if_info mii;
512 struct rtl8169_counters counters;
516 MODULE_AUTHOR("Realtek and the Linux r8169 crew <netdev@vger.kernel.org>");
517 MODULE_DESCRIPTION("RealTek RTL-8169 Gigabit Ethernet driver");
518 module_param(rx_copybreak, int, 0);
519 MODULE_PARM_DESC(rx_copybreak, "Copy breakpoint for copy-only-tiny-frames");
520 module_param(use_dac, int, 0);
521 MODULE_PARM_DESC(use_dac, "Enable PCI DAC. Unsafe on 32 bit PCI slot.");
522 module_param_named(debug, debug.msg_enable, int, 0);
523 MODULE_PARM_DESC(debug, "Debug verbosity level (0=none, ..., 16=all)");
524 MODULE_LICENSE("GPL");
525 MODULE_VERSION(RTL8169_VERSION);
527 static int rtl8169_open(struct net_device *dev);
528 static netdev_tx_t rtl8169_start_xmit(struct sk_buff *skb,
529 struct net_device *dev);
530 static irqreturn_t rtl8169_interrupt(int irq, void *dev_instance);
531 static int rtl8169_init_ring(struct net_device *dev);
532 static void rtl_hw_start(struct net_device *dev);
533 static int rtl8169_close(struct net_device *dev);
534 static void rtl_set_rx_mode(struct net_device *dev);
535 static void rtl8169_tx_timeout(struct net_device *dev);
536 static struct net_device_stats *rtl8169_get_stats(struct net_device *dev);
537 static int rtl8169_rx_interrupt(struct net_device *, struct rtl8169_private *,
538 void __iomem *, u32 budget);
539 static int rtl8169_change_mtu(struct net_device *dev, int new_mtu);
540 static void rtl8169_down(struct net_device *dev);
541 static void rtl8169_rx_clear(struct rtl8169_private *tp);
542 static int rtl8169_poll(struct napi_struct *napi, int budget);
544 static const unsigned int rtl8169_rx_config =
545 (RX_FIFO_THRESH << RxCfgFIFOShift) | (RX_DMA_BURST << RxCfgDMAShift);
547 static void mdio_write(void __iomem *ioaddr, int reg_addr, int value)
551 RTL_W32(PHYAR, 0x80000000 | (reg_addr & 0x1f) << 16 | (value & 0xffff));
553 for (i = 20; i > 0; i--) {
555 * Check if the RTL8169 has completed writing to the specified
558 if (!(RTL_R32(PHYAR) & 0x80000000))
564 static int mdio_read(void __iomem *ioaddr, int reg_addr)
568 RTL_W32(PHYAR, 0x0 | (reg_addr & 0x1f) << 16);
570 for (i = 20; i > 0; i--) {
572 * Check if the RTL8169 has completed retrieving data from
573 * the specified MII register.
575 if (RTL_R32(PHYAR) & 0x80000000) {
576 value = RTL_R32(PHYAR) & 0xffff;
584 static void mdio_patch(void __iomem *ioaddr, int reg_addr, int value)
586 mdio_write(ioaddr, reg_addr, mdio_read(ioaddr, reg_addr) | value);
589 static void mdio_plus_minus(void __iomem *ioaddr, int reg_addr, int p, int m)
593 val = mdio_read(ioaddr, reg_addr);
594 mdio_write(ioaddr, reg_addr, (val | p) & ~m);
597 static void rtl_mdio_write(struct net_device *dev, int phy_id, int location,
600 struct rtl8169_private *tp = netdev_priv(dev);
601 void __iomem *ioaddr = tp->mmio_addr;
603 mdio_write(ioaddr, location, val);
606 static int rtl_mdio_read(struct net_device *dev, int phy_id, int location)
608 struct rtl8169_private *tp = netdev_priv(dev);
609 void __iomem *ioaddr = tp->mmio_addr;
611 return mdio_read(ioaddr, location);
614 static void rtl_ephy_write(void __iomem *ioaddr, int reg_addr, int value)
618 RTL_W32(EPHYAR, EPHYAR_WRITE_CMD | (value & EPHYAR_DATA_MASK) |
619 (reg_addr & EPHYAR_REG_MASK) << EPHYAR_REG_SHIFT);
621 for (i = 0; i < 100; i++) {
622 if (!(RTL_R32(EPHYAR) & EPHYAR_FLAG))
628 static u16 rtl_ephy_read(void __iomem *ioaddr, int reg_addr)
633 RTL_W32(EPHYAR, (reg_addr & EPHYAR_REG_MASK) << EPHYAR_REG_SHIFT);
635 for (i = 0; i < 100; i++) {
636 if (RTL_R32(EPHYAR) & EPHYAR_FLAG) {
637 value = RTL_R32(EPHYAR) & EPHYAR_DATA_MASK;
646 static void rtl_csi_write(void __iomem *ioaddr, int addr, int value)
650 RTL_W32(CSIDR, value);
651 RTL_W32(CSIAR, CSIAR_WRITE_CMD | (addr & CSIAR_ADDR_MASK) |
652 CSIAR_BYTE_ENABLE << CSIAR_BYTE_ENABLE_SHIFT);
654 for (i = 0; i < 100; i++) {
655 if (!(RTL_R32(CSIAR) & CSIAR_FLAG))
661 static u32 rtl_csi_read(void __iomem *ioaddr, int addr)
666 RTL_W32(CSIAR, (addr & CSIAR_ADDR_MASK) |
667 CSIAR_BYTE_ENABLE << CSIAR_BYTE_ENABLE_SHIFT);
669 for (i = 0; i < 100; i++) {
670 if (RTL_R32(CSIAR) & CSIAR_FLAG) {
671 value = RTL_R32(CSIDR);
680 static u8 rtl8168d_efuse_read(void __iomem *ioaddr, int reg_addr)
685 RTL_W32(EFUSEAR, (reg_addr & EFUSEAR_REG_MASK) << EFUSEAR_REG_SHIFT);
687 for (i = 0; i < 300; i++) {
688 if (RTL_R32(EFUSEAR) & EFUSEAR_FLAG) {
689 value = RTL_R32(EFUSEAR) & EFUSEAR_DATA_MASK;
698 static void rtl8169_irq_mask_and_ack(void __iomem *ioaddr)
700 RTL_W16(IntrMask, 0x0000);
702 RTL_W16(IntrStatus, 0xffff);
705 static void rtl8169_asic_down(void __iomem *ioaddr)
707 RTL_W8(ChipCmd, 0x00);
708 rtl8169_irq_mask_and_ack(ioaddr);
712 static unsigned int rtl8169_tbi_reset_pending(void __iomem *ioaddr)
714 return RTL_R32(TBICSR) & TBIReset;
717 static unsigned int rtl8169_xmii_reset_pending(void __iomem *ioaddr)
719 return mdio_read(ioaddr, MII_BMCR) & BMCR_RESET;
722 static unsigned int rtl8169_tbi_link_ok(void __iomem *ioaddr)
724 return RTL_R32(TBICSR) & TBILinkOk;
727 static unsigned int rtl8169_xmii_link_ok(void __iomem *ioaddr)
729 return RTL_R8(PHYstatus) & LinkStatus;
732 static void rtl8169_tbi_reset_enable(void __iomem *ioaddr)
734 RTL_W32(TBICSR, RTL_R32(TBICSR) | TBIReset);
737 static void rtl8169_xmii_reset_enable(void __iomem *ioaddr)
741 val = mdio_read(ioaddr, MII_BMCR) | BMCR_RESET;
742 mdio_write(ioaddr, MII_BMCR, val & 0xffff);
745 static void rtl8169_check_link_status(struct net_device *dev,
746 struct rtl8169_private *tp,
747 void __iomem *ioaddr)
751 spin_lock_irqsave(&tp->lock, flags);
752 if (tp->link_ok(ioaddr)) {
753 /* This is to cancel a scheduled suspend if there's one. */
754 pm_request_resume(&tp->pci_dev->dev);
755 netif_carrier_on(dev);
756 netif_info(tp, ifup, dev, "link up\n");
758 netif_carrier_off(dev);
759 netif_info(tp, ifdown, dev, "link down\n");
760 pm_schedule_suspend(&tp->pci_dev->dev, 100);
762 spin_unlock_irqrestore(&tp->lock, flags);
765 #define WAKE_ANY (WAKE_PHY | WAKE_MAGIC | WAKE_UCAST | WAKE_BCAST | WAKE_MCAST)
767 static u32 __rtl8169_get_wol(struct rtl8169_private *tp)
769 void __iomem *ioaddr = tp->mmio_addr;
773 options = RTL_R8(Config1);
774 if (!(options & PMEnable))
777 options = RTL_R8(Config3);
778 if (options & LinkUp)
780 if (options & MagicPacket)
781 wolopts |= WAKE_MAGIC;
783 options = RTL_R8(Config5);
785 wolopts |= WAKE_UCAST;
787 wolopts |= WAKE_BCAST;
789 wolopts |= WAKE_MCAST;
794 static void rtl8169_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
796 struct rtl8169_private *tp = netdev_priv(dev);
798 spin_lock_irq(&tp->lock);
800 wol->supported = WAKE_ANY;
801 wol->wolopts = __rtl8169_get_wol(tp);
803 spin_unlock_irq(&tp->lock);
806 static void __rtl8169_set_wol(struct rtl8169_private *tp, u32 wolopts)
808 void __iomem *ioaddr = tp->mmio_addr;
810 static const struct {
815 { WAKE_ANY, Config1, PMEnable },
816 { WAKE_PHY, Config3, LinkUp },
817 { WAKE_MAGIC, Config3, MagicPacket },
818 { WAKE_UCAST, Config5, UWF },
819 { WAKE_BCAST, Config5, BWF },
820 { WAKE_MCAST, Config5, MWF },
821 { WAKE_ANY, Config5, LanWake }
824 RTL_W8(Cfg9346, Cfg9346_Unlock);
826 for (i = 0; i < ARRAY_SIZE(cfg); i++) {
827 u8 options = RTL_R8(cfg[i].reg) & ~cfg[i].mask;
828 if (wolopts & cfg[i].opt)
829 options |= cfg[i].mask;
830 RTL_W8(cfg[i].reg, options);
833 RTL_W8(Cfg9346, Cfg9346_Lock);
836 static int rtl8169_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
838 struct rtl8169_private *tp = netdev_priv(dev);
840 spin_lock_irq(&tp->lock);
843 tp->features |= RTL_FEATURE_WOL;
845 tp->features &= ~RTL_FEATURE_WOL;
846 __rtl8169_set_wol(tp, wol->wolopts);
847 device_set_wakeup_enable(&tp->pci_dev->dev, wol->wolopts);
849 spin_unlock_irq(&tp->lock);
854 static void rtl8169_get_drvinfo(struct net_device *dev,
855 struct ethtool_drvinfo *info)
857 struct rtl8169_private *tp = netdev_priv(dev);
859 strcpy(info->driver, MODULENAME);
860 strcpy(info->version, RTL8169_VERSION);
861 strcpy(info->bus_info, pci_name(tp->pci_dev));
864 static int rtl8169_get_regs_len(struct net_device *dev)
866 return R8169_REGS_SIZE;
869 static int rtl8169_set_speed_tbi(struct net_device *dev,
870 u8 autoneg, u16 speed, u8 duplex)
872 struct rtl8169_private *tp = netdev_priv(dev);
873 void __iomem *ioaddr = tp->mmio_addr;
877 reg = RTL_R32(TBICSR);
878 if ((autoneg == AUTONEG_DISABLE) && (speed == SPEED_1000) &&
879 (duplex == DUPLEX_FULL)) {
880 RTL_W32(TBICSR, reg & ~(TBINwEnable | TBINwRestart));
881 } else if (autoneg == AUTONEG_ENABLE)
882 RTL_W32(TBICSR, reg | TBINwEnable | TBINwRestart);
884 netif_warn(tp, link, dev,
885 "incorrect speed setting refused in TBI mode\n");
892 static int rtl8169_set_speed_xmii(struct net_device *dev,
893 u8 autoneg, u16 speed, u8 duplex)
895 struct rtl8169_private *tp = netdev_priv(dev);
896 void __iomem *ioaddr = tp->mmio_addr;
899 if (autoneg == AUTONEG_ENABLE) {
902 auto_nego = mdio_read(ioaddr, MII_ADVERTISE);
903 auto_nego |= (ADVERTISE_10HALF | ADVERTISE_10FULL |
904 ADVERTISE_100HALF | ADVERTISE_100FULL);
905 auto_nego |= ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM;
907 giga_ctrl = mdio_read(ioaddr, MII_CTRL1000);
908 giga_ctrl &= ~(ADVERTISE_1000FULL | ADVERTISE_1000HALF);
910 /* The 8100e/8101e/8102e do Fast Ethernet only. */
911 if ((tp->mac_version != RTL_GIGA_MAC_VER_07) &&
912 (tp->mac_version != RTL_GIGA_MAC_VER_08) &&
913 (tp->mac_version != RTL_GIGA_MAC_VER_09) &&
914 (tp->mac_version != RTL_GIGA_MAC_VER_10) &&
915 (tp->mac_version != RTL_GIGA_MAC_VER_13) &&
916 (tp->mac_version != RTL_GIGA_MAC_VER_14) &&
917 (tp->mac_version != RTL_GIGA_MAC_VER_15) &&
918 (tp->mac_version != RTL_GIGA_MAC_VER_16)) {
919 giga_ctrl |= ADVERTISE_1000FULL | ADVERTISE_1000HALF;
921 netif_info(tp, link, dev,
922 "PHY does not support 1000Mbps\n");
925 bmcr = BMCR_ANENABLE | BMCR_ANRESTART;
927 if ((tp->mac_version == RTL_GIGA_MAC_VER_11) ||
928 (tp->mac_version == RTL_GIGA_MAC_VER_12) ||
929 (tp->mac_version >= RTL_GIGA_MAC_VER_17)) {
932 * Vendor specific (0x1f) and reserved (0x0e) MII
935 mdio_write(ioaddr, 0x1f, 0x0000);
936 mdio_write(ioaddr, 0x0e, 0x0000);
939 mdio_write(ioaddr, MII_ADVERTISE, auto_nego);
940 mdio_write(ioaddr, MII_CTRL1000, giga_ctrl);
944 if (speed == SPEED_10)
946 else if (speed == SPEED_100)
947 bmcr = BMCR_SPEED100;
951 if (duplex == DUPLEX_FULL)
952 bmcr |= BMCR_FULLDPLX;
954 mdio_write(ioaddr, 0x1f, 0x0000);
957 tp->phy_1000_ctrl_reg = giga_ctrl;
959 mdio_write(ioaddr, MII_BMCR, bmcr);
961 if ((tp->mac_version == RTL_GIGA_MAC_VER_02) ||
962 (tp->mac_version == RTL_GIGA_MAC_VER_03)) {
963 if ((speed == SPEED_100) && (autoneg != AUTONEG_ENABLE)) {
964 mdio_write(ioaddr, 0x17, 0x2138);
965 mdio_write(ioaddr, 0x0e, 0x0260);
967 mdio_write(ioaddr, 0x17, 0x2108);
968 mdio_write(ioaddr, 0x0e, 0x0000);
975 static int rtl8169_set_speed(struct net_device *dev,
976 u8 autoneg, u16 speed, u8 duplex)
978 struct rtl8169_private *tp = netdev_priv(dev);
981 ret = tp->set_speed(dev, autoneg, speed, duplex);
983 if (netif_running(dev) && (tp->phy_1000_ctrl_reg & ADVERTISE_1000FULL))
984 mod_timer(&tp->timer, jiffies + RTL8169_PHY_TIMEOUT);
989 static int rtl8169_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
991 struct rtl8169_private *tp = netdev_priv(dev);
995 spin_lock_irqsave(&tp->lock, flags);
996 ret = rtl8169_set_speed(dev, cmd->autoneg, cmd->speed, cmd->duplex);
997 spin_unlock_irqrestore(&tp->lock, flags);
1002 static u32 rtl8169_get_rx_csum(struct net_device *dev)
1004 struct rtl8169_private *tp = netdev_priv(dev);
1006 return tp->cp_cmd & RxChkSum;
1009 static int rtl8169_set_rx_csum(struct net_device *dev, u32 data)
1011 struct rtl8169_private *tp = netdev_priv(dev);
1012 void __iomem *ioaddr = tp->mmio_addr;
1013 unsigned long flags;
1015 spin_lock_irqsave(&tp->lock, flags);
1018 tp->cp_cmd |= RxChkSum;
1020 tp->cp_cmd &= ~RxChkSum;
1022 RTL_W16(CPlusCmd, tp->cp_cmd);
1025 spin_unlock_irqrestore(&tp->lock, flags);
1030 #ifdef CONFIG_R8169_VLAN
1032 static inline u32 rtl8169_tx_vlan_tag(struct rtl8169_private *tp,
1033 struct sk_buff *skb)
1035 return (tp->vlgrp && vlan_tx_tag_present(skb)) ?
1036 TxVlanTag | swab16(vlan_tx_tag_get(skb)) : 0x00;
1039 static void rtl8169_vlan_rx_register(struct net_device *dev,
1040 struct vlan_group *grp)
1042 struct rtl8169_private *tp = netdev_priv(dev);
1043 void __iomem *ioaddr = tp->mmio_addr;
1044 unsigned long flags;
1046 spin_lock_irqsave(&tp->lock, flags);
1049 * Do not disable RxVlan on 8110SCd.
1051 if (tp->vlgrp || (tp->mac_version == RTL_GIGA_MAC_VER_05))
1052 tp->cp_cmd |= RxVlan;
1054 tp->cp_cmd &= ~RxVlan;
1055 RTL_W16(CPlusCmd, tp->cp_cmd);
1057 spin_unlock_irqrestore(&tp->lock, flags);
1060 static int rtl8169_rx_vlan_skb(struct rtl8169_private *tp, struct RxDesc *desc,
1061 struct sk_buff *skb, int polling)
1063 u32 opts2 = le32_to_cpu(desc->opts2);
1064 struct vlan_group *vlgrp = tp->vlgrp;
1067 if (vlgrp && (opts2 & RxVlanTag)) {
1068 __vlan_hwaccel_rx(skb, vlgrp, swab16(opts2 & 0xffff), polling);
1076 #else /* !CONFIG_R8169_VLAN */
1078 static inline u32 rtl8169_tx_vlan_tag(struct rtl8169_private *tp,
1079 struct sk_buff *skb)
1084 static int rtl8169_rx_vlan_skb(struct rtl8169_private *tp, struct RxDesc *desc,
1085 struct sk_buff *skb, int polling)
1092 static int rtl8169_gset_tbi(struct net_device *dev, struct ethtool_cmd *cmd)
1094 struct rtl8169_private *tp = netdev_priv(dev);
1095 void __iomem *ioaddr = tp->mmio_addr;
1099 SUPPORTED_1000baseT_Full | SUPPORTED_Autoneg | SUPPORTED_FIBRE;
1100 cmd->port = PORT_FIBRE;
1101 cmd->transceiver = XCVR_INTERNAL;
1103 status = RTL_R32(TBICSR);
1104 cmd->advertising = (status & TBINwEnable) ? ADVERTISED_Autoneg : 0;
1105 cmd->autoneg = !!(status & TBINwEnable);
1107 cmd->speed = SPEED_1000;
1108 cmd->duplex = DUPLEX_FULL; /* Always set */
1113 static int rtl8169_gset_xmii(struct net_device *dev, struct ethtool_cmd *cmd)
1115 struct rtl8169_private *tp = netdev_priv(dev);
1117 return mii_ethtool_gset(&tp->mii, cmd);
1120 static int rtl8169_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
1122 struct rtl8169_private *tp = netdev_priv(dev);
1123 unsigned long flags;
1126 spin_lock_irqsave(&tp->lock, flags);
1128 rc = tp->get_settings(dev, cmd);
1130 spin_unlock_irqrestore(&tp->lock, flags);
1134 static void rtl8169_get_regs(struct net_device *dev, struct ethtool_regs *regs,
1137 struct rtl8169_private *tp = netdev_priv(dev);
1138 unsigned long flags;
1140 if (regs->len > R8169_REGS_SIZE)
1141 regs->len = R8169_REGS_SIZE;
1143 spin_lock_irqsave(&tp->lock, flags);
1144 memcpy_fromio(p, tp->mmio_addr, regs->len);
1145 spin_unlock_irqrestore(&tp->lock, flags);
1148 static u32 rtl8169_get_msglevel(struct net_device *dev)
1150 struct rtl8169_private *tp = netdev_priv(dev);
1152 return tp->msg_enable;
1155 static void rtl8169_set_msglevel(struct net_device *dev, u32 value)
1157 struct rtl8169_private *tp = netdev_priv(dev);
1159 tp->msg_enable = value;
1162 static const char rtl8169_gstrings[][ETH_GSTRING_LEN] = {
1169 "tx_single_collisions",
1170 "tx_multi_collisions",
1178 static int rtl8169_get_sset_count(struct net_device *dev, int sset)
1182 return ARRAY_SIZE(rtl8169_gstrings);
1188 static void rtl8169_update_counters(struct net_device *dev)
1190 struct rtl8169_private *tp = netdev_priv(dev);
1191 void __iomem *ioaddr = tp->mmio_addr;
1192 struct rtl8169_counters *counters;
1198 * Some chips are unable to dump tally counters when the receiver
1201 if ((RTL_R8(ChipCmd) & CmdRxEnb) == 0)
1204 counters = pci_alloc_consistent(tp->pci_dev, sizeof(*counters), &paddr);
1208 RTL_W32(CounterAddrHigh, (u64)paddr >> 32);
1209 cmd = (u64)paddr & DMA_BIT_MASK(32);
1210 RTL_W32(CounterAddrLow, cmd);
1211 RTL_W32(CounterAddrLow, cmd | CounterDump);
1214 if ((RTL_R32(CounterAddrLow) & CounterDump) == 0) {
1215 /* copy updated counters */
1216 memcpy(&tp->counters, counters, sizeof(*counters));
1222 RTL_W32(CounterAddrLow, 0);
1223 RTL_W32(CounterAddrHigh, 0);
1225 pci_free_consistent(tp->pci_dev, sizeof(*counters), counters, paddr);
1228 static void rtl8169_get_ethtool_stats(struct net_device *dev,
1229 struct ethtool_stats *stats, u64 *data)
1231 struct rtl8169_private *tp = netdev_priv(dev);
1235 rtl8169_update_counters(dev);
1237 data[0] = le64_to_cpu(tp->counters.tx_packets);
1238 data[1] = le64_to_cpu(tp->counters.rx_packets);
1239 data[2] = le64_to_cpu(tp->counters.tx_errors);
1240 data[3] = le32_to_cpu(tp->counters.rx_errors);
1241 data[4] = le16_to_cpu(tp->counters.rx_missed);
1242 data[5] = le16_to_cpu(tp->counters.align_errors);
1243 data[6] = le32_to_cpu(tp->counters.tx_one_collision);
1244 data[7] = le32_to_cpu(tp->counters.tx_multi_collision);
1245 data[8] = le64_to_cpu(tp->counters.rx_unicast);
1246 data[9] = le64_to_cpu(tp->counters.rx_broadcast);
1247 data[10] = le32_to_cpu(tp->counters.rx_multicast);
1248 data[11] = le16_to_cpu(tp->counters.tx_aborted);
1249 data[12] = le16_to_cpu(tp->counters.tx_underun);
1252 static void rtl8169_get_strings(struct net_device *dev, u32 stringset, u8 *data)
1256 memcpy(data, *rtl8169_gstrings, sizeof(rtl8169_gstrings));
1261 static const struct ethtool_ops rtl8169_ethtool_ops = {
1262 .get_drvinfo = rtl8169_get_drvinfo,
1263 .get_regs_len = rtl8169_get_regs_len,
1264 .get_link = ethtool_op_get_link,
1265 .get_settings = rtl8169_get_settings,
1266 .set_settings = rtl8169_set_settings,
1267 .get_msglevel = rtl8169_get_msglevel,
1268 .set_msglevel = rtl8169_set_msglevel,
1269 .get_rx_csum = rtl8169_get_rx_csum,
1270 .set_rx_csum = rtl8169_set_rx_csum,
1271 .set_tx_csum = ethtool_op_set_tx_csum,
1272 .set_sg = ethtool_op_set_sg,
1273 .set_tso = ethtool_op_set_tso,
1274 .get_regs = rtl8169_get_regs,
1275 .get_wol = rtl8169_get_wol,
1276 .set_wol = rtl8169_set_wol,
1277 .get_strings = rtl8169_get_strings,
1278 .get_sset_count = rtl8169_get_sset_count,
1279 .get_ethtool_stats = rtl8169_get_ethtool_stats,
1282 static void rtl8169_get_mac_version(struct rtl8169_private *tp,
1283 void __iomem *ioaddr)
1286 * The driver currently handles the 8168Bf and the 8168Be identically
1287 * but they can be identified more specifically through the test below
1290 * (RTL_R32(TxConfig) & 0x700000) == 0x500000 ? 8168Bf : 8168Be
1292 * Same thing for the 8101Eb and the 8101Ec:
1294 * (RTL_R32(TxConfig) & 0x700000) == 0x200000 ? 8101Eb : 8101Ec
1296 static const struct {
1302 { 0x7cf00000, 0x28300000, RTL_GIGA_MAC_VER_26 },
1303 { 0x7cf00000, 0x28100000, RTL_GIGA_MAC_VER_25 },
1304 { 0x7c800000, 0x28800000, RTL_GIGA_MAC_VER_27 },
1305 { 0x7c800000, 0x28000000, RTL_GIGA_MAC_VER_26 },
1308 { 0x7cf00000, 0x3ca00000, RTL_GIGA_MAC_VER_24 },
1309 { 0x7cf00000, 0x3c900000, RTL_GIGA_MAC_VER_23 },
1310 { 0x7cf00000, 0x3c800000, RTL_GIGA_MAC_VER_18 },
1311 { 0x7c800000, 0x3c800000, RTL_GIGA_MAC_VER_24 },
1312 { 0x7cf00000, 0x3c000000, RTL_GIGA_MAC_VER_19 },
1313 { 0x7cf00000, 0x3c200000, RTL_GIGA_MAC_VER_20 },
1314 { 0x7cf00000, 0x3c300000, RTL_GIGA_MAC_VER_21 },
1315 { 0x7cf00000, 0x3c400000, RTL_GIGA_MAC_VER_22 },
1316 { 0x7c800000, 0x3c000000, RTL_GIGA_MAC_VER_22 },
1319 { 0x7cf00000, 0x38000000, RTL_GIGA_MAC_VER_12 },
1320 { 0x7cf00000, 0x38500000, RTL_GIGA_MAC_VER_17 },
1321 { 0x7c800000, 0x38000000, RTL_GIGA_MAC_VER_17 },
1322 { 0x7c800000, 0x30000000, RTL_GIGA_MAC_VER_11 },
1325 { 0x7cf00000, 0x34a00000, RTL_GIGA_MAC_VER_09 },
1326 { 0x7cf00000, 0x24a00000, RTL_GIGA_MAC_VER_09 },
1327 { 0x7cf00000, 0x34900000, RTL_GIGA_MAC_VER_08 },
1328 { 0x7cf00000, 0x24900000, RTL_GIGA_MAC_VER_08 },
1329 { 0x7cf00000, 0x34800000, RTL_GIGA_MAC_VER_07 },
1330 { 0x7cf00000, 0x24800000, RTL_GIGA_MAC_VER_07 },
1331 { 0x7cf00000, 0x34000000, RTL_GIGA_MAC_VER_13 },
1332 { 0x7cf00000, 0x34300000, RTL_GIGA_MAC_VER_10 },
1333 { 0x7cf00000, 0x34200000, RTL_GIGA_MAC_VER_16 },
1334 { 0x7c800000, 0x34800000, RTL_GIGA_MAC_VER_09 },
1335 { 0x7c800000, 0x24800000, RTL_GIGA_MAC_VER_09 },
1336 { 0x7c800000, 0x34000000, RTL_GIGA_MAC_VER_16 },
1337 /* FIXME: where did these entries come from ? -- FR */
1338 { 0xfc800000, 0x38800000, RTL_GIGA_MAC_VER_15 },
1339 { 0xfc800000, 0x30800000, RTL_GIGA_MAC_VER_14 },
1342 { 0xfc800000, 0x98000000, RTL_GIGA_MAC_VER_06 },
1343 { 0xfc800000, 0x18000000, RTL_GIGA_MAC_VER_05 },
1344 { 0xfc800000, 0x10000000, RTL_GIGA_MAC_VER_04 },
1345 { 0xfc800000, 0x04000000, RTL_GIGA_MAC_VER_03 },
1346 { 0xfc800000, 0x00800000, RTL_GIGA_MAC_VER_02 },
1347 { 0xfc800000, 0x00000000, RTL_GIGA_MAC_VER_01 },
1350 { 0x00000000, 0x00000000, RTL_GIGA_MAC_NONE }
1354 reg = RTL_R32(TxConfig);
1355 while ((reg & p->mask) != p->val)
1357 tp->mac_version = p->mac_version;
1360 static void rtl8169_print_mac_version(struct rtl8169_private *tp)
1362 dprintk("mac_version = 0x%02x\n", tp->mac_version);
1370 static void rtl_phy_write(void __iomem *ioaddr, const struct phy_reg *regs, int len)
1373 mdio_write(ioaddr, regs->reg, regs->val);
1378 static void rtl8169s_hw_phy_config(void __iomem *ioaddr)
1380 static const struct phy_reg phy_reg_init[] = {
1442 rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init));
1445 static void rtl8169sb_hw_phy_config(void __iomem *ioaddr)
1447 static const struct phy_reg phy_reg_init[] = {
1453 rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init));
1456 static void rtl8169scd_hw_phy_config_quirk(struct rtl8169_private *tp,
1457 void __iomem *ioaddr)
1459 struct pci_dev *pdev = tp->pci_dev;
1460 u16 vendor_id, device_id;
1462 pci_read_config_word(pdev, PCI_SUBSYSTEM_VENDOR_ID, &vendor_id);
1463 pci_read_config_word(pdev, PCI_SUBSYSTEM_ID, &device_id);
1465 if ((vendor_id != PCI_VENDOR_ID_GIGABYTE) || (device_id != 0xe000))
1468 mdio_write(ioaddr, 0x1f, 0x0001);
1469 mdio_write(ioaddr, 0x10, 0xf01b);
1470 mdio_write(ioaddr, 0x1f, 0x0000);
1473 static void rtl8169scd_hw_phy_config(struct rtl8169_private *tp,
1474 void __iomem *ioaddr)
1476 static const struct phy_reg phy_reg_init[] = {
1516 rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init));
1518 rtl8169scd_hw_phy_config_quirk(tp, ioaddr);
1521 static void rtl8169sce_hw_phy_config(void __iomem *ioaddr)
1523 static const struct phy_reg phy_reg_init[] = {
1571 rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init));
1574 static void rtl8168bb_hw_phy_config(void __iomem *ioaddr)
1576 static const struct phy_reg phy_reg_init[] = {
1581 mdio_write(ioaddr, 0x1f, 0x0001);
1582 mdio_patch(ioaddr, 0x16, 1 << 0);
1584 rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init));
1587 static void rtl8168bef_hw_phy_config(void __iomem *ioaddr)
1589 static const struct phy_reg phy_reg_init[] = {
1595 rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init));
1598 static void rtl8168cp_1_hw_phy_config(void __iomem *ioaddr)
1600 static const struct phy_reg phy_reg_init[] = {
1608 rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init));
1611 static void rtl8168cp_2_hw_phy_config(void __iomem *ioaddr)
1613 static const struct phy_reg phy_reg_init[] = {
1619 mdio_write(ioaddr, 0x1f, 0x0000);
1620 mdio_patch(ioaddr, 0x14, 1 << 5);
1621 mdio_patch(ioaddr, 0x0d, 1 << 5);
1623 rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init));
1626 static void rtl8168c_1_hw_phy_config(void __iomem *ioaddr)
1628 static const struct phy_reg phy_reg_init[] = {
1648 rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init));
1650 mdio_patch(ioaddr, 0x14, 1 << 5);
1651 mdio_patch(ioaddr, 0x0d, 1 << 5);
1652 mdio_write(ioaddr, 0x1f, 0x0000);
1655 static void rtl8168c_2_hw_phy_config(void __iomem *ioaddr)
1657 static const struct phy_reg phy_reg_init[] = {
1675 rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init));
1677 mdio_patch(ioaddr, 0x16, 1 << 0);
1678 mdio_patch(ioaddr, 0x14, 1 << 5);
1679 mdio_patch(ioaddr, 0x0d, 1 << 5);
1680 mdio_write(ioaddr, 0x1f, 0x0000);
1683 static void rtl8168c_3_hw_phy_config(void __iomem *ioaddr)
1685 static const struct phy_reg phy_reg_init[] = {
1697 rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init));
1699 mdio_patch(ioaddr, 0x16, 1 << 0);
1700 mdio_patch(ioaddr, 0x14, 1 << 5);
1701 mdio_patch(ioaddr, 0x0d, 1 << 5);
1702 mdio_write(ioaddr, 0x1f, 0x0000);
1705 static void rtl8168c_4_hw_phy_config(void __iomem *ioaddr)
1707 rtl8168c_3_hw_phy_config(ioaddr);
1710 static void rtl8168d_1_hw_phy_config(void __iomem *ioaddr)
1712 static const struct phy_reg phy_reg_init_0[] = {
1731 static const struct phy_reg phy_reg_init_1[] = {
1738 static const struct phy_reg phy_reg_init_2[] = {
2094 rtl_phy_write(ioaddr, phy_reg_init_0, ARRAY_SIZE(phy_reg_init_0));
2096 mdio_write(ioaddr, 0x1f, 0x0002);
2097 mdio_plus_minus(ioaddr, 0x0b, 0x0010, 0x00ef);
2098 mdio_plus_minus(ioaddr, 0x0c, 0xa200, 0x5d00);
2100 rtl_phy_write(ioaddr, phy_reg_init_1, ARRAY_SIZE(phy_reg_init_1));
2102 if (rtl8168d_efuse_read(ioaddr, 0x01) == 0xb1) {
2103 static const struct phy_reg phy_reg_init[] = {
2113 rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init));
2115 val = mdio_read(ioaddr, 0x0d);
2117 if ((val & 0x00ff) != 0x006c) {
2118 static const u32 set[] = {
2119 0x0065, 0x0066, 0x0067, 0x0068,
2120 0x0069, 0x006a, 0x006b, 0x006c
2124 mdio_write(ioaddr, 0x1f, 0x0002);
2127 for (i = 0; i < ARRAY_SIZE(set); i++)
2128 mdio_write(ioaddr, 0x0d, val | set[i]);
2131 static const struct phy_reg phy_reg_init[] = {
2139 rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init));
2142 mdio_write(ioaddr, 0x1f, 0x0002);
2143 mdio_patch(ioaddr, 0x0d, 0x0300);
2144 mdio_patch(ioaddr, 0x0f, 0x0010);
2146 mdio_write(ioaddr, 0x1f, 0x0002);
2147 mdio_plus_minus(ioaddr, 0x02, 0x0100, 0x0600);
2148 mdio_plus_minus(ioaddr, 0x03, 0x0000, 0xe000);
2150 rtl_phy_write(ioaddr, phy_reg_init_2, ARRAY_SIZE(phy_reg_init_2));
2153 static void rtl8168d_2_hw_phy_config(void __iomem *ioaddr)
2155 static const struct phy_reg phy_reg_init_0[] = {
2180 static const struct phy_reg phy_reg_init_1[] = {
2493 rtl_phy_write(ioaddr, phy_reg_init_0, ARRAY_SIZE(phy_reg_init_0));
2495 if (rtl8168d_efuse_read(ioaddr, 0x01) == 0xb1) {
2496 static const struct phy_reg phy_reg_init[] = {
2507 rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init));
2509 val = mdio_read(ioaddr, 0x0d);
2510 if ((val & 0x00ff) != 0x006c) {
2512 0x0065, 0x0066, 0x0067, 0x0068,
2513 0x0069, 0x006a, 0x006b, 0x006c
2517 mdio_write(ioaddr, 0x1f, 0x0002);
2520 for (i = 0; i < ARRAY_SIZE(set); i++)
2521 mdio_write(ioaddr, 0x0d, val | set[i]);
2524 static const struct phy_reg phy_reg_init[] = {
2532 rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init));
2535 mdio_write(ioaddr, 0x1f, 0x0002);
2536 mdio_plus_minus(ioaddr, 0x02, 0x0100, 0x0600);
2537 mdio_plus_minus(ioaddr, 0x03, 0x0000, 0xe000);
2539 mdio_write(ioaddr, 0x1f, 0x0001);
2540 mdio_write(ioaddr, 0x17, 0x0cc0);
2542 mdio_write(ioaddr, 0x1f, 0x0002);
2543 mdio_patch(ioaddr, 0x0f, 0x0017);
2545 rtl_phy_write(ioaddr, phy_reg_init_1, ARRAY_SIZE(phy_reg_init_1));
2548 static void rtl8168d_3_hw_phy_config(void __iomem *ioaddr)
2550 static const struct phy_reg phy_reg_init[] = {
2606 rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init));
2609 static void rtl8102e_hw_phy_config(void __iomem *ioaddr)
2611 static const struct phy_reg phy_reg_init[] = {
2618 mdio_write(ioaddr, 0x1f, 0x0000);
2619 mdio_patch(ioaddr, 0x11, 1 << 12);
2620 mdio_patch(ioaddr, 0x19, 1 << 13);
2621 mdio_patch(ioaddr, 0x10, 1 << 15);
2623 rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init));
2626 static void rtl_hw_phy_config(struct net_device *dev)
2628 struct rtl8169_private *tp = netdev_priv(dev);
2629 void __iomem *ioaddr = tp->mmio_addr;
2631 rtl8169_print_mac_version(tp);
2633 switch (tp->mac_version) {
2634 case RTL_GIGA_MAC_VER_01:
2636 case RTL_GIGA_MAC_VER_02:
2637 case RTL_GIGA_MAC_VER_03:
2638 rtl8169s_hw_phy_config(ioaddr);
2640 case RTL_GIGA_MAC_VER_04:
2641 rtl8169sb_hw_phy_config(ioaddr);
2643 case RTL_GIGA_MAC_VER_05:
2644 rtl8169scd_hw_phy_config(tp, ioaddr);
2646 case RTL_GIGA_MAC_VER_06:
2647 rtl8169sce_hw_phy_config(ioaddr);
2649 case RTL_GIGA_MAC_VER_07:
2650 case RTL_GIGA_MAC_VER_08:
2651 case RTL_GIGA_MAC_VER_09:
2652 rtl8102e_hw_phy_config(ioaddr);
2654 case RTL_GIGA_MAC_VER_11:
2655 rtl8168bb_hw_phy_config(ioaddr);
2657 case RTL_GIGA_MAC_VER_12:
2658 rtl8168bef_hw_phy_config(ioaddr);
2660 case RTL_GIGA_MAC_VER_17:
2661 rtl8168bef_hw_phy_config(ioaddr);
2663 case RTL_GIGA_MAC_VER_18:
2664 rtl8168cp_1_hw_phy_config(ioaddr);
2666 case RTL_GIGA_MAC_VER_19:
2667 rtl8168c_1_hw_phy_config(ioaddr);
2669 case RTL_GIGA_MAC_VER_20:
2670 rtl8168c_2_hw_phy_config(ioaddr);
2672 case RTL_GIGA_MAC_VER_21:
2673 rtl8168c_3_hw_phy_config(ioaddr);
2675 case RTL_GIGA_MAC_VER_22:
2676 rtl8168c_4_hw_phy_config(ioaddr);
2678 case RTL_GIGA_MAC_VER_23:
2679 case RTL_GIGA_MAC_VER_24:
2680 rtl8168cp_2_hw_phy_config(ioaddr);
2682 case RTL_GIGA_MAC_VER_25:
2683 rtl8168d_1_hw_phy_config(ioaddr);
2685 case RTL_GIGA_MAC_VER_26:
2686 rtl8168d_2_hw_phy_config(ioaddr);
2688 case RTL_GIGA_MAC_VER_27:
2689 rtl8168d_3_hw_phy_config(ioaddr);
2697 static void rtl8169_phy_timer(unsigned long __opaque)
2699 struct net_device *dev = (struct net_device *)__opaque;
2700 struct rtl8169_private *tp = netdev_priv(dev);
2701 struct timer_list *timer = &tp->timer;
2702 void __iomem *ioaddr = tp->mmio_addr;
2703 unsigned long timeout = RTL8169_PHY_TIMEOUT;
2705 assert(tp->mac_version > RTL_GIGA_MAC_VER_01);
2707 if (!(tp->phy_1000_ctrl_reg & ADVERTISE_1000FULL))
2710 spin_lock_irq(&tp->lock);
2712 if (tp->phy_reset_pending(ioaddr)) {
2714 * A busy loop could burn quite a few cycles on nowadays CPU.
2715 * Let's delay the execution of the timer for a few ticks.
2721 if (tp->link_ok(ioaddr))
2724 netif_warn(tp, link, dev, "PHY reset until link up\n");
2726 tp->phy_reset_enable(ioaddr);
2729 mod_timer(timer, jiffies + timeout);
2731 spin_unlock_irq(&tp->lock);
2734 static inline void rtl8169_delete_timer(struct net_device *dev)
2736 struct rtl8169_private *tp = netdev_priv(dev);
2737 struct timer_list *timer = &tp->timer;
2739 if (tp->mac_version <= RTL_GIGA_MAC_VER_01)
2742 del_timer_sync(timer);
2745 static inline void rtl8169_request_timer(struct net_device *dev)
2747 struct rtl8169_private *tp = netdev_priv(dev);
2748 struct timer_list *timer = &tp->timer;
2750 if (tp->mac_version <= RTL_GIGA_MAC_VER_01)
2753 mod_timer(timer, jiffies + RTL8169_PHY_TIMEOUT);
2756 #ifdef CONFIG_NET_POLL_CONTROLLER
2758 * Polling 'interrupt' - used by things like netconsole to send skbs
2759 * without having to re-enable interrupts. It's not called while
2760 * the interrupt routine is executing.
2762 static void rtl8169_netpoll(struct net_device *dev)
2764 struct rtl8169_private *tp = netdev_priv(dev);
2765 struct pci_dev *pdev = tp->pci_dev;
2767 disable_irq(pdev->irq);
2768 rtl8169_interrupt(pdev->irq, dev);
2769 enable_irq(pdev->irq);
2773 static void rtl8169_release_board(struct pci_dev *pdev, struct net_device *dev,
2774 void __iomem *ioaddr)
2777 pci_release_regions(pdev);
2778 pci_disable_device(pdev);
2782 static void rtl8169_phy_reset(struct net_device *dev,
2783 struct rtl8169_private *tp)
2785 void __iomem *ioaddr = tp->mmio_addr;
2788 tp->phy_reset_enable(ioaddr);
2789 for (i = 0; i < 100; i++) {
2790 if (!tp->phy_reset_pending(ioaddr))
2794 netif_err(tp, link, dev, "PHY reset failed\n");
2797 static void rtl8169_init_phy(struct net_device *dev, struct rtl8169_private *tp)
2799 void __iomem *ioaddr = tp->mmio_addr;
2801 rtl_hw_phy_config(dev);
2803 if (tp->mac_version <= RTL_GIGA_MAC_VER_06) {
2804 dprintk("Set MAC Reg C+CR Offset 0x82h = 0x01h\n");
2808 pci_write_config_byte(tp->pci_dev, PCI_LATENCY_TIMER, 0x40);
2810 if (tp->mac_version <= RTL_GIGA_MAC_VER_06)
2811 pci_write_config_byte(tp->pci_dev, PCI_CACHE_LINE_SIZE, 0x08);
2813 if (tp->mac_version == RTL_GIGA_MAC_VER_02) {
2814 dprintk("Set MAC Reg C+CR Offset 0x82h = 0x01h\n");
2816 dprintk("Set PHY Reg 0x0bh = 0x00h\n");
2817 mdio_write(ioaddr, 0x0b, 0x0000); //w 0x0b 15 0 0
2820 rtl8169_phy_reset(dev, tp);
2823 * rtl8169_set_speed_xmii takes good care of the Fast Ethernet
2824 * only 8101. Don't panic.
2826 rtl8169_set_speed(dev, AUTONEG_ENABLE, SPEED_1000, DUPLEX_FULL);
2828 if (RTL_R8(PHYstatus) & TBI_Enable)
2829 netif_info(tp, link, dev, "TBI auto-negotiating\n");
2832 static void rtl_rar_set(struct rtl8169_private *tp, u8 *addr)
2834 void __iomem *ioaddr = tp->mmio_addr;
2838 low = addr[0] | (addr[1] << 8) | (addr[2] << 16) | (addr[3] << 24);
2839 high = addr[4] | (addr[5] << 8);
2841 spin_lock_irq(&tp->lock);
2843 RTL_W8(Cfg9346, Cfg9346_Unlock);
2844 RTL_W32(MAC4, high);
2846 RTL_W8(Cfg9346, Cfg9346_Lock);
2848 spin_unlock_irq(&tp->lock);
2851 static int rtl_set_mac_address(struct net_device *dev, void *p)
2853 struct rtl8169_private *tp = netdev_priv(dev);
2854 struct sockaddr *addr = p;
2856 if (!is_valid_ether_addr(addr->sa_data))
2857 return -EADDRNOTAVAIL;
2859 memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
2861 rtl_rar_set(tp, dev->dev_addr);
2866 static int rtl8169_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
2868 struct rtl8169_private *tp = netdev_priv(dev);
2869 struct mii_ioctl_data *data = if_mii(ifr);
2871 return netif_running(dev) ? tp->do_ioctl(tp, data, cmd) : -ENODEV;
2874 static int rtl_xmii_ioctl(struct rtl8169_private *tp, struct mii_ioctl_data *data, int cmd)
2878 data->phy_id = 32; /* Internal PHY */
2882 data->val_out = mdio_read(tp->mmio_addr, data->reg_num & 0x1f);
2886 mdio_write(tp->mmio_addr, data->reg_num & 0x1f, data->val_in);
2892 static int rtl_tbi_ioctl(struct rtl8169_private *tp, struct mii_ioctl_data *data, int cmd)
2897 static const struct rtl_cfg_info {
2898 void (*hw_start)(struct net_device *);
2899 unsigned int region;
2905 } rtl_cfg_infos [] = {
2907 .hw_start = rtl_hw_start_8169,
2910 .intr_event = SYSErr | LinkChg | RxOverflow |
2911 RxFIFOOver | TxErr | TxOK | RxOK | RxErr,
2912 .napi_event = RxFIFOOver | TxErr | TxOK | RxOK | RxOverflow,
2913 .features = RTL_FEATURE_GMII,
2914 .default_ver = RTL_GIGA_MAC_VER_01,
2917 .hw_start = rtl_hw_start_8168,
2920 .intr_event = SYSErr | LinkChg | RxOverflow |
2921 TxErr | TxOK | RxOK | RxErr,
2922 .napi_event = TxErr | TxOK | RxOK | RxOverflow,
2923 .features = RTL_FEATURE_GMII | RTL_FEATURE_MSI,
2924 .default_ver = RTL_GIGA_MAC_VER_11,
2927 .hw_start = rtl_hw_start_8101,
2930 .intr_event = SYSErr | LinkChg | RxOverflow | PCSTimeout |
2931 RxFIFOOver | TxErr | TxOK | RxOK | RxErr,
2932 .napi_event = RxFIFOOver | TxErr | TxOK | RxOK | RxOverflow,
2933 .features = RTL_FEATURE_MSI,
2934 .default_ver = RTL_GIGA_MAC_VER_13,
2938 /* Cfg9346_Unlock assumed. */
2939 static unsigned rtl_try_msi(struct pci_dev *pdev, void __iomem *ioaddr,
2940 const struct rtl_cfg_info *cfg)
2945 cfg2 = RTL_R8(Config2) & ~MSIEnable;
2946 if (cfg->features & RTL_FEATURE_MSI) {
2947 if (pci_enable_msi(pdev)) {
2948 dev_info(&pdev->dev, "no MSI. Back to INTx.\n");
2951 msi = RTL_FEATURE_MSI;
2954 RTL_W8(Config2, cfg2);
2958 static void rtl_disable_msi(struct pci_dev *pdev, struct rtl8169_private *tp)
2960 if (tp->features & RTL_FEATURE_MSI) {
2961 pci_disable_msi(pdev);
2962 tp->features &= ~RTL_FEATURE_MSI;
2966 static const struct net_device_ops rtl8169_netdev_ops = {
2967 .ndo_open = rtl8169_open,
2968 .ndo_stop = rtl8169_close,
2969 .ndo_get_stats = rtl8169_get_stats,
2970 .ndo_start_xmit = rtl8169_start_xmit,
2971 .ndo_tx_timeout = rtl8169_tx_timeout,
2972 .ndo_validate_addr = eth_validate_addr,
2973 .ndo_change_mtu = rtl8169_change_mtu,
2974 .ndo_set_mac_address = rtl_set_mac_address,
2975 .ndo_do_ioctl = rtl8169_ioctl,
2976 .ndo_set_multicast_list = rtl_set_rx_mode,
2977 #ifdef CONFIG_R8169_VLAN
2978 .ndo_vlan_rx_register = rtl8169_vlan_rx_register,
2980 #ifdef CONFIG_NET_POLL_CONTROLLER
2981 .ndo_poll_controller = rtl8169_netpoll,
2986 static int __devinit
2987 rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
2989 const struct rtl_cfg_info *cfg = rtl_cfg_infos + ent->driver_data;
2990 const unsigned int region = cfg->region;
2991 struct rtl8169_private *tp;
2992 struct mii_if_info *mii;
2993 struct net_device *dev;
2994 void __iomem *ioaddr;
2998 if (netif_msg_drv(&debug)) {
2999 printk(KERN_INFO "%s Gigabit Ethernet driver %s loaded\n",
3000 MODULENAME, RTL8169_VERSION);
3003 dev = alloc_etherdev(sizeof (*tp));
3005 if (netif_msg_drv(&debug))
3006 dev_err(&pdev->dev, "unable to alloc new ethernet\n");
3011 SET_NETDEV_DEV(dev, &pdev->dev);
3012 dev->netdev_ops = &rtl8169_netdev_ops;
3013 tp = netdev_priv(dev);
3016 tp->msg_enable = netif_msg_init(debug.msg_enable, R8169_MSG_DEFAULT);
3020 mii->mdio_read = rtl_mdio_read;
3021 mii->mdio_write = rtl_mdio_write;
3022 mii->phy_id_mask = 0x1f;
3023 mii->reg_num_mask = 0x1f;
3024 mii->supports_gmii = !!(cfg->features & RTL_FEATURE_GMII);
3026 /* enable device (incl. PCI PM wakeup and hotplug setup) */
3027 rc = pci_enable_device(pdev);
3029 netif_err(tp, probe, dev, "enable failure\n");
3030 goto err_out_free_dev_1;
3033 rc = pci_set_mwi(pdev);
3035 goto err_out_disable_2;
3037 /* make sure PCI base addr 1 is MMIO */
3038 if (!(pci_resource_flags(pdev, region) & IORESOURCE_MEM)) {
3039 netif_err(tp, probe, dev,
3040 "region #%d not an MMIO resource, aborting\n",
3046 /* check for weird/broken PCI region reporting */
3047 if (pci_resource_len(pdev, region) < R8169_REGS_SIZE) {
3048 netif_err(tp, probe, dev,
3049 "Invalid PCI region size(s), aborting\n");
3054 rc = pci_request_regions(pdev, MODULENAME);
3056 netif_err(tp, probe, dev, "could not request regions\n");
3060 tp->cp_cmd = PCIMulRW | RxChkSum;
3062 if ((sizeof(dma_addr_t) > 4) &&
3063 !pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) && use_dac) {
3064 tp->cp_cmd |= PCIDAC;
3065 dev->features |= NETIF_F_HIGHDMA;
3067 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
3069 netif_err(tp, probe, dev, "DMA configuration failed\n");
3070 goto err_out_free_res_4;
3074 /* ioremap MMIO region */
3075 ioaddr = ioremap(pci_resource_start(pdev, region), R8169_REGS_SIZE);
3077 netif_err(tp, probe, dev, "cannot remap MMIO, aborting\n");
3079 goto err_out_free_res_4;
3082 tp->pcie_cap = pci_find_capability(pdev, PCI_CAP_ID_EXP);
3084 netif_info(tp, probe, dev, "no PCI Express capability\n");
3086 RTL_W16(IntrMask, 0x0000);
3088 /* Soft reset the chip. */
3089 RTL_W8(ChipCmd, CmdReset);
3091 /* Check that the chip has finished the reset. */
3092 for (i = 0; i < 100; i++) {
3093 if ((RTL_R8(ChipCmd) & CmdReset) == 0)
3095 msleep_interruptible(1);
3098 RTL_W16(IntrStatus, 0xffff);
3100 pci_set_master(pdev);
3102 /* Identify chip attached to board */
3103 rtl8169_get_mac_version(tp, ioaddr);
3105 /* Use appropriate default if unknown */
3106 if (tp->mac_version == RTL_GIGA_MAC_NONE) {
3107 netif_notice(tp, probe, dev,
3108 "unknown MAC, using family default\n");
3109 tp->mac_version = cfg->default_ver;
3112 rtl8169_print_mac_version(tp);
3114 for (i = 0; i < ARRAY_SIZE(rtl_chip_info); i++) {
3115 if (tp->mac_version == rtl_chip_info[i].mac_version)
3118 if (i == ARRAY_SIZE(rtl_chip_info)) {
3120 "driver bug, MAC version not found in rtl_chip_info\n");
3125 RTL_W8(Cfg9346, Cfg9346_Unlock);
3126 RTL_W8(Config1, RTL_R8(Config1) | PMEnable);
3127 RTL_W8(Config5, RTL_R8(Config5) & PMEStatus);
3128 if ((RTL_R8(Config3) & (LinkUp | MagicPacket)) != 0)
3129 tp->features |= RTL_FEATURE_WOL;
3130 if ((RTL_R8(Config5) & (UWF | BWF | MWF)) != 0)
3131 tp->features |= RTL_FEATURE_WOL;
3132 tp->features |= rtl_try_msi(pdev, ioaddr, cfg);
3133 RTL_W8(Cfg9346, Cfg9346_Lock);
3135 if ((tp->mac_version <= RTL_GIGA_MAC_VER_06) &&
3136 (RTL_R8(PHYstatus) & TBI_Enable)) {
3137 tp->set_speed = rtl8169_set_speed_tbi;
3138 tp->get_settings = rtl8169_gset_tbi;
3139 tp->phy_reset_enable = rtl8169_tbi_reset_enable;
3140 tp->phy_reset_pending = rtl8169_tbi_reset_pending;
3141 tp->link_ok = rtl8169_tbi_link_ok;
3142 tp->do_ioctl = rtl_tbi_ioctl;
3144 tp->phy_1000_ctrl_reg = ADVERTISE_1000FULL; /* Implied by TBI */
3146 tp->set_speed = rtl8169_set_speed_xmii;
3147 tp->get_settings = rtl8169_gset_xmii;
3148 tp->phy_reset_enable = rtl8169_xmii_reset_enable;
3149 tp->phy_reset_pending = rtl8169_xmii_reset_pending;
3150 tp->link_ok = rtl8169_xmii_link_ok;
3151 tp->do_ioctl = rtl_xmii_ioctl;
3154 spin_lock_init(&tp->lock);
3156 tp->mmio_addr = ioaddr;
3158 /* Get MAC address */
3159 for (i = 0; i < MAC_ADDR_LEN; i++)
3160 dev->dev_addr[i] = RTL_R8(MAC0 + i);
3161 memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len);
3163 SET_ETHTOOL_OPS(dev, &rtl8169_ethtool_ops);
3164 dev->watchdog_timeo = RTL8169_TX_TIMEOUT;
3165 dev->irq = pdev->irq;
3166 dev->base_addr = (unsigned long) ioaddr;
3168 netif_napi_add(dev, &tp->napi, rtl8169_poll, R8169_NAPI_WEIGHT);
3170 #ifdef CONFIG_R8169_VLAN
3171 dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
3174 tp->intr_mask = 0xffff;
3175 tp->align = cfg->align;
3176 tp->hw_start = cfg->hw_start;
3177 tp->intr_event = cfg->intr_event;
3178 tp->napi_event = cfg->napi_event;
3180 init_timer(&tp->timer);
3181 tp->timer.data = (unsigned long) dev;
3182 tp->timer.function = rtl8169_phy_timer;
3184 rc = register_netdev(dev);
3188 pci_set_drvdata(pdev, dev);
3190 netif_info(tp, probe, dev, "%s at 0x%lx, %pM, XID %08x IRQ %d\n",
3191 rtl_chip_info[tp->chipset].name,
3192 dev->base_addr, dev->dev_addr,
3193 (u32)(RTL_R32(TxConfig) & 0x9cf0f8ff), dev->irq);
3195 rtl8169_init_phy(dev, tp);
3198 * Pretend we are using VLANs; This bypasses a nasty bug where
3199 * Interrupts stop flowing on high load on 8110SCd controllers.
3201 if (tp->mac_version == RTL_GIGA_MAC_VER_05)
3202 RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) | RxVlan);
3204 device_set_wakeup_enable(&pdev->dev, tp->features & RTL_FEATURE_WOL);
3206 if (pci_dev_run_wake(pdev)) {
3207 pm_runtime_set_active(&pdev->dev);
3208 pm_runtime_enable(&pdev->dev);
3210 pm_runtime_idle(&pdev->dev);
3216 rtl_disable_msi(pdev, tp);
3219 pci_release_regions(pdev);
3221 pci_clear_mwi(pdev);
3223 pci_disable_device(pdev);
3229 static void __devexit rtl8169_remove_one(struct pci_dev *pdev)
3231 struct net_device *dev = pci_get_drvdata(pdev);
3232 struct rtl8169_private *tp = netdev_priv(dev);
3234 pm_runtime_get_sync(&pdev->dev);
3236 flush_scheduled_work();
3238 unregister_netdev(dev);
3240 if (pci_dev_run_wake(pdev)) {
3241 pm_runtime_disable(&pdev->dev);
3242 pm_runtime_set_suspended(&pdev->dev);
3244 pm_runtime_put_noidle(&pdev->dev);
3246 /* restore original MAC address */
3247 rtl_rar_set(tp, dev->perm_addr);
3249 rtl_disable_msi(pdev, tp);
3250 rtl8169_release_board(pdev, dev, tp->mmio_addr);
3251 pci_set_drvdata(pdev, NULL);
3254 static void rtl8169_set_rxbufsize(struct rtl8169_private *tp,
3257 unsigned int max_frame = mtu + VLAN_ETH_HLEN + ETH_FCS_LEN;
3259 if (max_frame != 16383)
3260 printk(KERN_WARNING PFX "WARNING! Changing of MTU on this "
3261 "NIC may lead to frame reception errors!\n");
3263 tp->rx_buf_sz = (max_frame > RX_BUF_SIZE) ? max_frame : RX_BUF_SIZE;
3266 static int rtl8169_open(struct net_device *dev)
3268 struct rtl8169_private *tp = netdev_priv(dev);
3269 struct pci_dev *pdev = tp->pci_dev;
3270 int retval = -ENOMEM;
3272 pm_runtime_get_sync(&pdev->dev);
3275 * Note that we use a magic value here, its wierd I know
3276 * its done because, some subset of rtl8169 hardware suffers from
3277 * a problem in which frames received that are longer than
3278 * the size set in RxMaxSize register return garbage sizes
3279 * when received. To avoid this we need to turn off filtering,
3280 * which is done by setting a value of 16383 in the RxMaxSize register
3281 * and allocating 16k frames to handle the largest possible rx value
3282 * thats what the magic math below does.
3284 rtl8169_set_rxbufsize(tp, 16383 - VLAN_ETH_HLEN - ETH_FCS_LEN);
3287 * Rx and Tx desscriptors needs 256 bytes alignment.
3288 * pci_alloc_consistent provides more.
3290 tp->TxDescArray = pci_alloc_consistent(pdev, R8169_TX_RING_BYTES,
3292 if (!tp->TxDescArray)
3293 goto err_pm_runtime_put;
3295 tp->RxDescArray = pci_alloc_consistent(pdev, R8169_RX_RING_BYTES,
3297 if (!tp->RxDescArray)
3300 retval = rtl8169_init_ring(dev);
3304 INIT_DELAYED_WORK(&tp->task, NULL);
3308 retval = request_irq(dev->irq, rtl8169_interrupt,
3309 (tp->features & RTL_FEATURE_MSI) ? 0 : IRQF_SHARED,
3312 goto err_release_ring_2;
3314 napi_enable(&tp->napi);
3318 rtl8169_request_timer(dev);
3320 tp->saved_wolopts = 0;
3321 pm_runtime_put_noidle(&pdev->dev);
3323 rtl8169_check_link_status(dev, tp, tp->mmio_addr);
3328 rtl8169_rx_clear(tp);
3330 pci_free_consistent(pdev, R8169_RX_RING_BYTES, tp->RxDescArray,
3332 tp->RxDescArray = NULL;
3334 pci_free_consistent(pdev, R8169_TX_RING_BYTES, tp->TxDescArray,
3336 tp->TxDescArray = NULL;
3338 pm_runtime_put_noidle(&pdev->dev);
3342 static void rtl8169_hw_reset(void __iomem *ioaddr)
3344 /* Disable interrupts */
3345 rtl8169_irq_mask_and_ack(ioaddr);
3347 /* Reset the chipset */
3348 RTL_W8(ChipCmd, CmdReset);
3354 static void rtl_set_rx_tx_config_registers(struct rtl8169_private *tp)
3356 void __iomem *ioaddr = tp->mmio_addr;
3357 u32 cfg = rtl8169_rx_config;
3359 cfg |= (RTL_R32(RxConfig) & rtl_chip_info[tp->chipset].RxConfigMask);
3360 RTL_W32(RxConfig, cfg);
3362 /* Set DMA burst size and Interframe Gap Time */
3363 RTL_W32(TxConfig, (TX_DMA_BURST << TxDMAShift) |
3364 (InterFrameGap << TxInterFrameGapShift));
3367 static void rtl_hw_start(struct net_device *dev)
3369 struct rtl8169_private *tp = netdev_priv(dev);
3370 void __iomem *ioaddr = tp->mmio_addr;
3373 /* Soft reset the chip. */
3374 RTL_W8(ChipCmd, CmdReset);
3376 /* Check that the chip has finished the reset. */
3377 for (i = 0; i < 100; i++) {
3378 if ((RTL_R8(ChipCmd) & CmdReset) == 0)
3380 msleep_interruptible(1);
3385 netif_start_queue(dev);
3389 static void rtl_set_rx_tx_desc_registers(struct rtl8169_private *tp,
3390 void __iomem *ioaddr)
3393 * Magic spell: some iop3xx ARM board needs the TxDescAddrHigh
3394 * register to be written before TxDescAddrLow to work.
3395 * Switching from MMIO to I/O access fixes the issue as well.
3397 RTL_W32(TxDescStartAddrHigh, ((u64) tp->TxPhyAddr) >> 32);
3398 RTL_W32(TxDescStartAddrLow, ((u64) tp->TxPhyAddr) & DMA_BIT_MASK(32));
3399 RTL_W32(RxDescAddrHigh, ((u64) tp->RxPhyAddr) >> 32);
3400 RTL_W32(RxDescAddrLow, ((u64) tp->RxPhyAddr) & DMA_BIT_MASK(32));
3403 static u16 rtl_rw_cpluscmd(void __iomem *ioaddr)
3407 cmd = RTL_R16(CPlusCmd);
3408 RTL_W16(CPlusCmd, cmd);
3412 static void rtl_set_rx_max_size(void __iomem *ioaddr, unsigned int rx_buf_sz)
3414 /* Low hurts. Let's disable the filtering. */
3415 RTL_W16(RxMaxSize, rx_buf_sz + 1);
3418 static void rtl8169_set_magic_reg(void __iomem *ioaddr, unsigned mac_version)
3420 static const struct {
3425 { RTL_GIGA_MAC_VER_05, PCI_Clock_33MHz, 0x000fff00 }, // 8110SCd
3426 { RTL_GIGA_MAC_VER_05, PCI_Clock_66MHz, 0x000fffff },
3427 { RTL_GIGA_MAC_VER_06, PCI_Clock_33MHz, 0x00ffff00 }, // 8110SCe
3428 { RTL_GIGA_MAC_VER_06, PCI_Clock_66MHz, 0x00ffffff }
3433 clk = RTL_R8(Config2) & PCI_Clock_66MHz;
3434 for (i = 0; i < ARRAY_SIZE(cfg2_info); i++, p++) {
3435 if ((p->mac_version == mac_version) && (p->clk == clk)) {
3436 RTL_W32(0x7c, p->val);
3442 static void rtl_hw_start_8169(struct net_device *dev)
3444 struct rtl8169_private *tp = netdev_priv(dev);
3445 void __iomem *ioaddr = tp->mmio_addr;
3446 struct pci_dev *pdev = tp->pci_dev;
3448 if (tp->mac_version == RTL_GIGA_MAC_VER_05) {
3449 RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) | PCIMulRW);
3450 pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE, 0x08);
3453 RTL_W8(Cfg9346, Cfg9346_Unlock);
3454 if ((tp->mac_version == RTL_GIGA_MAC_VER_01) ||
3455 (tp->mac_version == RTL_GIGA_MAC_VER_02) ||
3456 (tp->mac_version == RTL_GIGA_MAC_VER_03) ||
3457 (tp->mac_version == RTL_GIGA_MAC_VER_04))
3458 RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb);
3460 RTL_W8(EarlyTxThres, EarlyTxThld);
3462 rtl_set_rx_max_size(ioaddr, tp->rx_buf_sz);
3464 if ((tp->mac_version == RTL_GIGA_MAC_VER_01) ||
3465 (tp->mac_version == RTL_GIGA_MAC_VER_02) ||
3466 (tp->mac_version == RTL_GIGA_MAC_VER_03) ||
3467 (tp->mac_version == RTL_GIGA_MAC_VER_04))
3468 rtl_set_rx_tx_config_registers(tp);
3470 tp->cp_cmd |= rtl_rw_cpluscmd(ioaddr) | PCIMulRW;
3472 if ((tp->mac_version == RTL_GIGA_MAC_VER_02) ||
3473 (tp->mac_version == RTL_GIGA_MAC_VER_03)) {
3474 dprintk("Set MAC Reg C+CR Offset 0xE0. "
3475 "Bit-3 and bit-14 MUST be 1\n");
3476 tp->cp_cmd |= (1 << 14);
3479 RTL_W16(CPlusCmd, tp->cp_cmd);
3481 rtl8169_set_magic_reg(ioaddr, tp->mac_version);
3484 * Undocumented corner. Supposedly:
3485 * (TxTimer << 12) | (TxPackets << 8) | (RxTimer << 4) | RxPackets
3487 RTL_W16(IntrMitigate, 0x0000);
3489 rtl_set_rx_tx_desc_registers(tp, ioaddr);
3491 if ((tp->mac_version != RTL_GIGA_MAC_VER_01) &&
3492 (tp->mac_version != RTL_GIGA_MAC_VER_02) &&
3493 (tp->mac_version != RTL_GIGA_MAC_VER_03) &&
3494 (tp->mac_version != RTL_GIGA_MAC_VER_04)) {
3495 RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb);
3496 rtl_set_rx_tx_config_registers(tp);
3499 RTL_W8(Cfg9346, Cfg9346_Lock);
3501 /* Initially a 10 us delay. Turned it into a PCI commit. - FR */
3504 RTL_W32(RxMissed, 0);
3506 rtl_set_rx_mode(dev);
3508 /* no early-rx interrupts */
3509 RTL_W16(MultiIntr, RTL_R16(MultiIntr) & 0xF000);
3511 /* Enable all known interrupts by setting the interrupt mask. */
3512 RTL_W16(IntrMask, tp->intr_event);
3515 static void rtl_tx_performance_tweak(struct pci_dev *pdev, u16 force)
3517 struct net_device *dev = pci_get_drvdata(pdev);
3518 struct rtl8169_private *tp = netdev_priv(dev);
3519 int cap = tp->pcie_cap;
3524 pci_read_config_word(pdev, cap + PCI_EXP_DEVCTL, &ctl);
3525 ctl = (ctl & ~PCI_EXP_DEVCTL_READRQ) | force;
3526 pci_write_config_word(pdev, cap + PCI_EXP_DEVCTL, ctl);
3530 static void rtl_csi_access_enable(void __iomem *ioaddr)
3534 csi = rtl_csi_read(ioaddr, 0x070c) & 0x00ffffff;
3535 rtl_csi_write(ioaddr, 0x070c, csi | 0x27000000);
3539 unsigned int offset;
3544 static void rtl_ephy_init(void __iomem *ioaddr, const struct ephy_info *e, int len)
3549 w = (rtl_ephy_read(ioaddr, e->offset) & ~e->mask) | e->bits;
3550 rtl_ephy_write(ioaddr, e->offset, w);
3555 static void rtl_disable_clock_request(struct pci_dev *pdev)
3557 struct net_device *dev = pci_get_drvdata(pdev);
3558 struct rtl8169_private *tp = netdev_priv(dev);
3559 int cap = tp->pcie_cap;
3564 pci_read_config_word(pdev, cap + PCI_EXP_LNKCTL, &ctl);
3565 ctl &= ~PCI_EXP_LNKCTL_CLKREQ_EN;
3566 pci_write_config_word(pdev, cap + PCI_EXP_LNKCTL, ctl);
3570 #define R8168_CPCMD_QUIRK_MASK (\
3581 static void rtl_hw_start_8168bb(void __iomem *ioaddr, struct pci_dev *pdev)
3583 RTL_W8(Config3, RTL_R8(Config3) & ~Beacon_en);
3585 RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) & ~R8168_CPCMD_QUIRK_MASK);
3587 rtl_tx_performance_tweak(pdev,
3588 (0x5 << MAX_READ_REQUEST_SHIFT) | PCI_EXP_DEVCTL_NOSNOOP_EN);
3591 static void rtl_hw_start_8168bef(void __iomem *ioaddr, struct pci_dev *pdev)
3593 rtl_hw_start_8168bb(ioaddr, pdev);
3595 RTL_W8(EarlyTxThres, EarlyTxThld);
3597 RTL_W8(Config4, RTL_R8(Config4) & ~(1 << 0));
3600 static void __rtl_hw_start_8168cp(void __iomem *ioaddr, struct pci_dev *pdev)
3602 RTL_W8(Config1, RTL_R8(Config1) | Speed_down);
3604 RTL_W8(Config3, RTL_R8(Config3) & ~Beacon_en);
3606 rtl_tx_performance_tweak(pdev, 0x5 << MAX_READ_REQUEST_SHIFT);
3608 rtl_disable_clock_request(pdev);
3610 RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) & ~R8168_CPCMD_QUIRK_MASK);
3613 static void rtl_hw_start_8168cp_1(void __iomem *ioaddr, struct pci_dev *pdev)
3615 static const struct ephy_info e_info_8168cp[] = {
3616 { 0x01, 0, 0x0001 },
3617 { 0x02, 0x0800, 0x1000 },
3618 { 0x03, 0, 0x0042 },
3619 { 0x06, 0x0080, 0x0000 },
3623 rtl_csi_access_enable(ioaddr);
3625 rtl_ephy_init(ioaddr, e_info_8168cp, ARRAY_SIZE(e_info_8168cp));
3627 __rtl_hw_start_8168cp(ioaddr, pdev);
3630 static void rtl_hw_start_8168cp_2(void __iomem *ioaddr, struct pci_dev *pdev)
3632 rtl_csi_access_enable(ioaddr);
3634 RTL_W8(Config3, RTL_R8(Config3) & ~Beacon_en);
3636 rtl_tx_performance_tweak(pdev, 0x5 << MAX_READ_REQUEST_SHIFT);
3638 RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) & ~R8168_CPCMD_QUIRK_MASK);
3641 static void rtl_hw_start_8168cp_3(void __iomem *ioaddr, struct pci_dev *pdev)
3643 rtl_csi_access_enable(ioaddr);
3645 RTL_W8(Config3, RTL_R8(Config3) & ~Beacon_en);
3648 RTL_W8(DBG_REG, 0x20);
3650 RTL_W8(EarlyTxThres, EarlyTxThld);
3652 rtl_tx_performance_tweak(pdev, 0x5 << MAX_READ_REQUEST_SHIFT);
3654 RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) & ~R8168_CPCMD_QUIRK_MASK);
3657 static void rtl_hw_start_8168c_1(void __iomem *ioaddr, struct pci_dev *pdev)
3659 static const struct ephy_info e_info_8168c_1[] = {
3660 { 0x02, 0x0800, 0x1000 },
3661 { 0x03, 0, 0x0002 },
3662 { 0x06, 0x0080, 0x0000 }
3665 rtl_csi_access_enable(ioaddr);
3667 RTL_W8(DBG_REG, 0x06 | FIX_NAK_1 | FIX_NAK_2);
3669 rtl_ephy_init(ioaddr, e_info_8168c_1, ARRAY_SIZE(e_info_8168c_1));
3671 __rtl_hw_start_8168cp(ioaddr, pdev);
3674 static void rtl_hw_start_8168c_2(void __iomem *ioaddr, struct pci_dev *pdev)
3676 static const struct ephy_info e_info_8168c_2[] = {
3677 { 0x01, 0, 0x0001 },
3678 { 0x03, 0x0400, 0x0220 }
3681 rtl_csi_access_enable(ioaddr);
3683 rtl_ephy_init(ioaddr, e_info_8168c_2, ARRAY_SIZE(e_info_8168c_2));
3685 __rtl_hw_start_8168cp(ioaddr, pdev);
3688 static void rtl_hw_start_8168c_3(void __iomem *ioaddr, struct pci_dev *pdev)
3690 rtl_hw_start_8168c_2(ioaddr, pdev);
3693 static void rtl_hw_start_8168c_4(void __iomem *ioaddr, struct pci_dev *pdev)
3695 rtl_csi_access_enable(ioaddr);
3697 __rtl_hw_start_8168cp(ioaddr, pdev);
3700 static void rtl_hw_start_8168d(void __iomem *ioaddr, struct pci_dev *pdev)
3702 rtl_csi_access_enable(ioaddr);
3704 rtl_disable_clock_request(pdev);
3706 RTL_W8(EarlyTxThres, EarlyTxThld);
3708 rtl_tx_performance_tweak(pdev, 0x5 << MAX_READ_REQUEST_SHIFT);
3710 RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) & ~R8168_CPCMD_QUIRK_MASK);
3713 static void rtl_hw_start_8168(struct net_device *dev)
3715 struct rtl8169_private *tp = netdev_priv(dev);
3716 void __iomem *ioaddr = tp->mmio_addr;
3717 struct pci_dev *pdev = tp->pci_dev;
3719 RTL_W8(Cfg9346, Cfg9346_Unlock);
3721 RTL_W8(EarlyTxThres, EarlyTxThld);
3723 rtl_set_rx_max_size(ioaddr, tp->rx_buf_sz);
3725 tp->cp_cmd |= RTL_R16(CPlusCmd) | PktCntrDisable | INTT_1;
3727 RTL_W16(CPlusCmd, tp->cp_cmd);
3729 RTL_W16(IntrMitigate, 0x5151);
3731 /* Work around for RxFIFO overflow. */
3732 if (tp->mac_version == RTL_GIGA_MAC_VER_11) {
3733 tp->intr_event |= RxFIFOOver | PCSTimeout;
3734 tp->intr_event &= ~RxOverflow;
3737 rtl_set_rx_tx_desc_registers(tp, ioaddr);
3739 rtl_set_rx_mode(dev);
3741 RTL_W32(TxConfig, (TX_DMA_BURST << TxDMAShift) |
3742 (InterFrameGap << TxInterFrameGapShift));
3746 switch (tp->mac_version) {
3747 case RTL_GIGA_MAC_VER_11:
3748 rtl_hw_start_8168bb(ioaddr, pdev);
3751 case RTL_GIGA_MAC_VER_12:
3752 case RTL_GIGA_MAC_VER_17:
3753 rtl_hw_start_8168bef(ioaddr, pdev);
3756 case RTL_GIGA_MAC_VER_18:
3757 rtl_hw_start_8168cp_1(ioaddr, pdev);
3760 case RTL_GIGA_MAC_VER_19:
3761 rtl_hw_start_8168c_1(ioaddr, pdev);
3764 case RTL_GIGA_MAC_VER_20:
3765 rtl_hw_start_8168c_2(ioaddr, pdev);
3768 case RTL_GIGA_MAC_VER_21:
3769 rtl_hw_start_8168c_3(ioaddr, pdev);
3772 case RTL_GIGA_MAC_VER_22:
3773 rtl_hw_start_8168c_4(ioaddr, pdev);
3776 case RTL_GIGA_MAC_VER_23:
3777 rtl_hw_start_8168cp_2(ioaddr, pdev);
3780 case RTL_GIGA_MAC_VER_24:
3781 rtl_hw_start_8168cp_3(ioaddr, pdev);
3784 case RTL_GIGA_MAC_VER_25:
3785 case RTL_GIGA_MAC_VER_26:
3786 case RTL_GIGA_MAC_VER_27:
3787 rtl_hw_start_8168d(ioaddr, pdev);
3791 printk(KERN_ERR PFX "%s: unknown chipset (mac_version = %d).\n",
3792 dev->name, tp->mac_version);
3796 RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb);
3798 RTL_W8(Cfg9346, Cfg9346_Lock);
3800 RTL_W16(MultiIntr, RTL_R16(MultiIntr) & 0xF000);
3802 RTL_W16(IntrMask, tp->intr_event);
3805 #define R810X_CPCMD_QUIRK_MASK (\
3817 static void rtl_hw_start_8102e_1(void __iomem *ioaddr, struct pci_dev *pdev)
3819 static const struct ephy_info e_info_8102e_1[] = {
3820 { 0x01, 0, 0x6e65 },
3821 { 0x02, 0, 0x091f },
3822 { 0x03, 0, 0xc2f9 },
3823 { 0x06, 0, 0xafb5 },
3824 { 0x07, 0, 0x0e00 },
3825 { 0x19, 0, 0xec80 },
3826 { 0x01, 0, 0x2e65 },
3831 rtl_csi_access_enable(ioaddr);
3833 RTL_W8(DBG_REG, FIX_NAK_1);
3835 rtl_tx_performance_tweak(pdev, 0x5 << MAX_READ_REQUEST_SHIFT);
3838 LEDS1 | LEDS0 | Speed_down | MEMMAP | IOMAP | VPD | PMEnable);
3839 RTL_W8(Config3, RTL_R8(Config3) & ~Beacon_en);
3841 cfg1 = RTL_R8(Config1);
3842 if ((cfg1 & LEDS0) && (cfg1 & LEDS1))
3843 RTL_W8(Config1, cfg1 & ~LEDS0);
3845 RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) & ~R810X_CPCMD_QUIRK_MASK);
3847 rtl_ephy_init(ioaddr, e_info_8102e_1, ARRAY_SIZE(e_info_8102e_1));
3850 static void rtl_hw_start_8102e_2(void __iomem *ioaddr, struct pci_dev *pdev)
3852 rtl_csi_access_enable(ioaddr);
3854 rtl_tx_performance_tweak(pdev, 0x5 << MAX_READ_REQUEST_SHIFT);
3856 RTL_W8(Config1, MEMMAP | IOMAP | VPD | PMEnable);
3857 RTL_W8(Config3, RTL_R8(Config3) & ~Beacon_en);
3859 RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) & ~R810X_CPCMD_QUIRK_MASK);
3862 static void rtl_hw_start_8102e_3(void __iomem *ioaddr, struct pci_dev *pdev)
3864 rtl_hw_start_8102e_2(ioaddr, pdev);
3866 rtl_ephy_write(ioaddr, 0x03, 0xc2f9);
3869 static void rtl_hw_start_8101(struct net_device *dev)
3871 struct rtl8169_private *tp = netdev_priv(dev);
3872 void __iomem *ioaddr = tp->mmio_addr;
3873 struct pci_dev *pdev = tp->pci_dev;
3875 if ((tp->mac_version == RTL_GIGA_MAC_VER_13) ||
3876 (tp->mac_version == RTL_GIGA_MAC_VER_16)) {
3877 int cap = tp->pcie_cap;
3880 pci_write_config_word(pdev, cap + PCI_EXP_DEVCTL,
3881 PCI_EXP_DEVCTL_NOSNOOP_EN);
3885 switch (tp->mac_version) {
3886 case RTL_GIGA_MAC_VER_07:
3887 rtl_hw_start_8102e_1(ioaddr, pdev);
3890 case RTL_GIGA_MAC_VER_08:
3891 rtl_hw_start_8102e_3(ioaddr, pdev);
3894 case RTL_GIGA_MAC_VER_09:
3895 rtl_hw_start_8102e_2(ioaddr, pdev);
3899 RTL_W8(Cfg9346, Cfg9346_Unlock);
3901 RTL_W8(EarlyTxThres, EarlyTxThld);
3903 rtl_set_rx_max_size(ioaddr, tp->rx_buf_sz);
3905 tp->cp_cmd |= rtl_rw_cpluscmd(ioaddr) | PCIMulRW;
3907 RTL_W16(CPlusCmd, tp->cp_cmd);
3909 RTL_W16(IntrMitigate, 0x0000);
3911 rtl_set_rx_tx_desc_registers(tp, ioaddr);
3913 RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb);
3914 rtl_set_rx_tx_config_registers(tp);
3916 RTL_W8(Cfg9346, Cfg9346_Lock);
3920 rtl_set_rx_mode(dev);
3922 RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb);
3924 RTL_W16(MultiIntr, RTL_R16(MultiIntr) & 0xf000);
3926 RTL_W16(IntrMask, tp->intr_event);
3929 static int rtl8169_change_mtu(struct net_device *dev, int new_mtu)
3931 struct rtl8169_private *tp = netdev_priv(dev);
3934 if (new_mtu < ETH_ZLEN || new_mtu > SafeMtu)
3939 if (!netif_running(dev))
3944 rtl8169_set_rxbufsize(tp, dev->mtu);
3946 ret = rtl8169_init_ring(dev);
3950 napi_enable(&tp->napi);
3954 rtl8169_request_timer(dev);
3960 static inline void rtl8169_make_unusable_by_asic(struct RxDesc *desc)
3962 desc->addr = cpu_to_le64(0x0badbadbadbadbadull);
3963 desc->opts1 &= ~cpu_to_le32(DescOwn | RsvdMask);
3966 static void rtl8169_free_rx_skb(struct rtl8169_private *tp,
3967 struct sk_buff **sk_buff, struct RxDesc *desc)
3969 struct pci_dev *pdev = tp->pci_dev;
3971 pci_unmap_single(pdev, le64_to_cpu(desc->addr), tp->rx_buf_sz,
3972 PCI_DMA_FROMDEVICE);
3973 dev_kfree_skb(*sk_buff);
3975 rtl8169_make_unusable_by_asic(desc);
3978 static inline void rtl8169_mark_to_asic(struct RxDesc *desc, u32 rx_buf_sz)
3980 u32 eor = le32_to_cpu(desc->opts1) & RingEnd;
3982 desc->opts1 = cpu_to_le32(DescOwn | eor | rx_buf_sz);
3985 static inline void rtl8169_map_to_asic(struct RxDesc *desc, dma_addr_t mapping,
3988 desc->addr = cpu_to_le64(mapping);
3990 rtl8169_mark_to_asic(desc, rx_buf_sz);
3993 static struct sk_buff *rtl8169_alloc_rx_skb(struct pci_dev *pdev,
3994 struct net_device *dev,
3995 struct RxDesc *desc, int rx_buf_sz,
3998 struct sk_buff *skb;
4002 pad = align ? align : NET_IP_ALIGN;
4004 skb = netdev_alloc_skb(dev, rx_buf_sz + pad);
4008 skb_reserve(skb, align ? ((pad - 1) & (unsigned long)skb->data) : pad);
4010 mapping = pci_map_single(pdev, skb->data, rx_buf_sz,
4011 PCI_DMA_FROMDEVICE);
4013 rtl8169_map_to_asic(desc, mapping, rx_buf_sz);
4018 rtl8169_make_unusable_by_asic(desc);
4022 static void rtl8169_rx_clear(struct rtl8169_private *tp)
4026 for (i = 0; i < NUM_RX_DESC; i++) {
4027 if (tp->Rx_skbuff[i]) {
4028 rtl8169_free_rx_skb(tp, tp->Rx_skbuff + i,
4029 tp->RxDescArray + i);
4034 static u32 rtl8169_rx_fill(struct rtl8169_private *tp, struct net_device *dev,
4039 for (cur = start; end - cur != 0; cur++) {
4040 struct sk_buff *skb;
4041 unsigned int i = cur % NUM_RX_DESC;
4043 WARN_ON((s32)(end - cur) < 0);
4045 if (tp->Rx_skbuff[i])
4048 skb = rtl8169_alloc_rx_skb(tp->pci_dev, dev,
4049 tp->RxDescArray + i,
4050 tp->rx_buf_sz, tp->align);
4054 tp->Rx_skbuff[i] = skb;
4059 static inline void rtl8169_mark_as_last_descriptor(struct RxDesc *desc)
4061 desc->opts1 |= cpu_to_le32(RingEnd);
4064 static void rtl8169_init_ring_indexes(struct rtl8169_private *tp)
4066 tp->dirty_tx = tp->dirty_rx = tp->cur_tx = tp->cur_rx = 0;
4069 static int rtl8169_init_ring(struct net_device *dev)
4071 struct rtl8169_private *tp = netdev_priv(dev);
4073 rtl8169_init_ring_indexes(tp);
4075 memset(tp->tx_skb, 0x0, NUM_TX_DESC * sizeof(struct ring_info));
4076 memset(tp->Rx_skbuff, 0x0, NUM_RX_DESC * sizeof(struct sk_buff *));
4078 if (rtl8169_rx_fill(tp, dev, 0, NUM_RX_DESC) != NUM_RX_DESC)
4081 rtl8169_mark_as_last_descriptor(tp->RxDescArray + NUM_RX_DESC - 1);
4086 rtl8169_rx_clear(tp);
4090 static void rtl8169_unmap_tx_skb(struct pci_dev *pdev, struct ring_info *tx_skb,
4091 struct TxDesc *desc)
4093 unsigned int len = tx_skb->len;
4095 pci_unmap_single(pdev, le64_to_cpu(desc->addr), len, PCI_DMA_TODEVICE);
4102 static void rtl8169_tx_clear(struct rtl8169_private *tp)
4106 for (i = tp->dirty_tx; i < tp->dirty_tx + NUM_TX_DESC; i++) {
4107 unsigned int entry = i % NUM_TX_DESC;
4108 struct ring_info *tx_skb = tp->tx_skb + entry;
4109 unsigned int len = tx_skb->len;
4112 struct sk_buff *skb = tx_skb->skb;
4114 rtl8169_unmap_tx_skb(tp->pci_dev, tx_skb,
4115 tp->TxDescArray + entry);
4120 tp->dev->stats.tx_dropped++;
4123 tp->cur_tx = tp->dirty_tx = 0;
4126 static void rtl8169_schedule_work(struct net_device *dev, work_func_t task)
4128 struct rtl8169_private *tp = netdev_priv(dev);
4130 PREPARE_DELAYED_WORK(&tp->task, task);
4131 schedule_delayed_work(&tp->task, 4);
4134 static void rtl8169_wait_for_quiescence(struct net_device *dev)
4136 struct rtl8169_private *tp = netdev_priv(dev);
4137 void __iomem *ioaddr = tp->mmio_addr;
4139 synchronize_irq(dev->irq);
4141 /* Wait for any pending NAPI task to complete */
4142 napi_disable(&tp->napi);
4144 rtl8169_irq_mask_and_ack(ioaddr);
4146 tp->intr_mask = 0xffff;
4147 RTL_W16(IntrMask, tp->intr_event);
4148 napi_enable(&tp->napi);
4151 static void rtl8169_reinit_task(struct work_struct *work)
4153 struct rtl8169_private *tp =
4154 container_of(work, struct rtl8169_private, task.work);
4155 struct net_device *dev = tp->dev;
4160 if (!netif_running(dev))
4163 rtl8169_wait_for_quiescence(dev);
4166 ret = rtl8169_open(dev);
4167 if (unlikely(ret < 0)) {
4168 if (net_ratelimit())
4169 netif_err(tp, drv, dev,
4170 "reinit failure (status = %d). Rescheduling\n",
4172 rtl8169_schedule_work(dev, rtl8169_reinit_task);
4179 static void rtl8169_reset_task(struct work_struct *work)
4181 struct rtl8169_private *tp =
4182 container_of(work, struct rtl8169_private, task.work);
4183 struct net_device *dev = tp->dev;
4187 if (!netif_running(dev))
4190 rtl8169_wait_for_quiescence(dev);
4192 rtl8169_rx_interrupt(dev, tp, tp->mmio_addr, ~(u32)0);
4193 rtl8169_tx_clear(tp);
4195 if (tp->dirty_rx == tp->cur_rx) {
4196 rtl8169_init_ring_indexes(tp);
4198 netif_wake_queue(dev);
4199 rtl8169_check_link_status(dev, tp, tp->mmio_addr);
4201 if (net_ratelimit())
4202 netif_emerg(tp, intr, dev, "Rx buffers shortage\n");
4203 rtl8169_schedule_work(dev, rtl8169_reset_task);
4210 static void rtl8169_tx_timeout(struct net_device *dev)
4212 struct rtl8169_private *tp = netdev_priv(dev);
4214 rtl8169_hw_reset(tp->mmio_addr);
4216 /* Let's wait a bit while any (async) irq lands on */
4217 rtl8169_schedule_work(dev, rtl8169_reset_task);
4220 static int rtl8169_xmit_frags(struct rtl8169_private *tp, struct sk_buff *skb,
4223 struct skb_shared_info *info = skb_shinfo(skb);
4224 unsigned int cur_frag, entry;
4225 struct TxDesc * uninitialized_var(txd);
4228 for (cur_frag = 0; cur_frag < info->nr_frags; cur_frag++) {
4229 skb_frag_t *frag = info->frags + cur_frag;
4234 entry = (entry + 1) % NUM_TX_DESC;
4236 txd = tp->TxDescArray + entry;
4238 addr = ((void *) page_address(frag->page)) + frag->page_offset;
4239 mapping = pci_map_single(tp->pci_dev, addr, len, PCI_DMA_TODEVICE);
4241 /* anti gcc 2.95.3 bugware (sic) */
4242 status = opts1 | len | (RingEnd * !((entry + 1) % NUM_TX_DESC));
4244 txd->opts1 = cpu_to_le32(status);
4245 txd->addr = cpu_to_le64(mapping);
4247 tp->tx_skb[entry].len = len;
4251 tp->tx_skb[entry].skb = skb;
4252 txd->opts1 |= cpu_to_le32(LastFrag);
4258 static inline u32 rtl8169_tso_csum(struct sk_buff *skb, struct net_device *dev)
4260 if (dev->features & NETIF_F_TSO) {
4261 u32 mss = skb_shinfo(skb)->gso_size;
4264 return LargeSend | ((mss & MSSMask) << MSSShift);
4266 if (skb->ip_summed == CHECKSUM_PARTIAL) {
4267 const struct iphdr *ip = ip_hdr(skb);
4269 if (ip->protocol == IPPROTO_TCP)
4270 return IPCS | TCPCS;
4271 else if (ip->protocol == IPPROTO_UDP)
4272 return IPCS | UDPCS;
4273 WARN_ON(1); /* we need a WARN() */
4278 static netdev_tx_t rtl8169_start_xmit(struct sk_buff *skb,
4279 struct net_device *dev)
4281 struct rtl8169_private *tp = netdev_priv(dev);
4282 unsigned int frags, entry = tp->cur_tx % NUM_TX_DESC;
4283 struct TxDesc *txd = tp->TxDescArray + entry;
4284 void __iomem *ioaddr = tp->mmio_addr;
4289 if (unlikely(TX_BUFFS_AVAIL(tp) < skb_shinfo(skb)->nr_frags)) {
4290 netif_err(tp, drv, dev, "BUG! Tx Ring full when queue awake!\n");
4294 if (unlikely(le32_to_cpu(txd->opts1) & DescOwn))
4297 opts1 = DescOwn | rtl8169_tso_csum(skb, dev);
4299 frags = rtl8169_xmit_frags(tp, skb, opts1);
4301 len = skb_headlen(skb);
4305 opts1 |= FirstFrag | LastFrag;
4306 tp->tx_skb[entry].skb = skb;
4309 mapping = pci_map_single(tp->pci_dev, skb->data, len, PCI_DMA_TODEVICE);
4311 tp->tx_skb[entry].len = len;
4312 txd->addr = cpu_to_le64(mapping);
4313 txd->opts2 = cpu_to_le32(rtl8169_tx_vlan_tag(tp, skb));
4317 /* anti gcc 2.95.3 bugware (sic) */
4318 status = opts1 | len | (RingEnd * !((entry + 1) % NUM_TX_DESC));
4319 txd->opts1 = cpu_to_le32(status);
4321 tp->cur_tx += frags + 1;
4325 RTL_W8(TxPoll, NPQ); /* set polling bit */
4327 if (TX_BUFFS_AVAIL(tp) < MAX_SKB_FRAGS) {
4328 netif_stop_queue(dev);
4330 if (TX_BUFFS_AVAIL(tp) >= MAX_SKB_FRAGS)
4331 netif_wake_queue(dev);
4334 return NETDEV_TX_OK;
4337 netif_stop_queue(dev);
4338 dev->stats.tx_dropped++;
4339 return NETDEV_TX_BUSY;
4342 static void rtl8169_pcierr_interrupt(struct net_device *dev)
4344 struct rtl8169_private *tp = netdev_priv(dev);
4345 struct pci_dev *pdev = tp->pci_dev;
4346 void __iomem *ioaddr = tp->mmio_addr;
4347 u16 pci_status, pci_cmd;
4349 pci_read_config_word(pdev, PCI_COMMAND, &pci_cmd);
4350 pci_read_config_word(pdev, PCI_STATUS, &pci_status);
4352 netif_err(tp, intr, dev, "PCI error (cmd = 0x%04x, status = 0x%04x)\n",
4353 pci_cmd, pci_status);
4356 * The recovery sequence below admits a very elaborated explanation:
4357 * - it seems to work;
4358 * - I did not see what else could be done;
4359 * - it makes iop3xx happy.
4361 * Feel free to adjust to your needs.
4363 if (pdev->broken_parity_status)
4364 pci_cmd &= ~PCI_COMMAND_PARITY;
4366 pci_cmd |= PCI_COMMAND_SERR | PCI_COMMAND_PARITY;
4368 pci_write_config_word(pdev, PCI_COMMAND, pci_cmd);
4370 pci_write_config_word(pdev, PCI_STATUS,
4371 pci_status & (PCI_STATUS_DETECTED_PARITY |
4372 PCI_STATUS_SIG_SYSTEM_ERROR | PCI_STATUS_REC_MASTER_ABORT |
4373 PCI_STATUS_REC_TARGET_ABORT | PCI_STATUS_SIG_TARGET_ABORT));
4375 /* The infamous DAC f*ckup only happens at boot time */
4376 if ((tp->cp_cmd & PCIDAC) && !tp->dirty_rx && !tp->cur_rx) {
4377 netif_info(tp, intr, dev, "disabling PCI DAC\n");
4378 tp->cp_cmd &= ~PCIDAC;
4379 RTL_W16(CPlusCmd, tp->cp_cmd);
4380 dev->features &= ~NETIF_F_HIGHDMA;
4383 rtl8169_hw_reset(ioaddr);
4385 rtl8169_schedule_work(dev, rtl8169_reinit_task);
4388 static void rtl8169_tx_interrupt(struct net_device *dev,
4389 struct rtl8169_private *tp,
4390 void __iomem *ioaddr)
4392 unsigned int dirty_tx, tx_left;
4394 dirty_tx = tp->dirty_tx;
4396 tx_left = tp->cur_tx - dirty_tx;
4398 while (tx_left > 0) {
4399 unsigned int entry = dirty_tx % NUM_TX_DESC;
4400 struct ring_info *tx_skb = tp->tx_skb + entry;
4401 u32 len = tx_skb->len;
4405 status = le32_to_cpu(tp->TxDescArray[entry].opts1);
4406 if (status & DescOwn)
4409 dev->stats.tx_bytes += len;
4410 dev->stats.tx_packets++;
4412 rtl8169_unmap_tx_skb(tp->pci_dev, tx_skb, tp->TxDescArray + entry);
4414 if (status & LastFrag) {
4415 dev_kfree_skb(tx_skb->skb);
4422 if (tp->dirty_tx != dirty_tx) {
4423 tp->dirty_tx = dirty_tx;
4425 if (netif_queue_stopped(dev) &&
4426 (TX_BUFFS_AVAIL(tp) >= MAX_SKB_FRAGS)) {
4427 netif_wake_queue(dev);
4430 * 8168 hack: TxPoll requests are lost when the Tx packets are
4431 * too close. Let's kick an extra TxPoll request when a burst
4432 * of start_xmit activity is detected (if it is not detected,
4433 * it is slow enough). -- FR
4436 if (tp->cur_tx != dirty_tx)
4437 RTL_W8(TxPoll, NPQ);
4441 static inline int rtl8169_fragmented_frame(u32 status)
4443 return (status & (FirstFrag | LastFrag)) != (FirstFrag | LastFrag);
4446 static inline void rtl8169_rx_csum(struct sk_buff *skb, struct RxDesc *desc)
4448 u32 opts1 = le32_to_cpu(desc->opts1);
4449 u32 status = opts1 & RxProtoMask;
4451 if (((status == RxProtoTCP) && !(opts1 & TCPFail)) ||
4452 ((status == RxProtoUDP) && !(opts1 & UDPFail)) ||
4453 ((status == RxProtoIP) && !(opts1 & IPFail)))
4454 skb->ip_summed = CHECKSUM_UNNECESSARY;
4456 skb->ip_summed = CHECKSUM_NONE;
4459 static inline bool rtl8169_try_rx_copy(struct sk_buff **sk_buff,
4460 struct rtl8169_private *tp, int pkt_size,
4463 struct sk_buff *skb;
4466 if (pkt_size >= rx_copybreak)
4469 skb = netdev_alloc_skb_ip_align(tp->dev, pkt_size);
4473 pci_dma_sync_single_for_cpu(tp->pci_dev, addr, pkt_size,
4474 PCI_DMA_FROMDEVICE);
4475 skb_copy_from_linear_data(*sk_buff, skb->data, pkt_size);
4483 * Warning : rtl8169_rx_interrupt() might be called :
4484 * 1) from NAPI (softirq) context
4485 * (polling = 1 : we should call netif_receive_skb())
4486 * 2) from process context (rtl8169_reset_task())
4487 * (polling = 0 : we must call netif_rx() instead)
4489 static int rtl8169_rx_interrupt(struct net_device *dev,
4490 struct rtl8169_private *tp,
4491 void __iomem *ioaddr, u32 budget)
4493 unsigned int cur_rx, rx_left;
4494 unsigned int delta, count;
4495 int polling = (budget != ~(u32)0) ? 1 : 0;
4497 cur_rx = tp->cur_rx;
4498 rx_left = NUM_RX_DESC + tp->dirty_rx - cur_rx;
4499 rx_left = min(rx_left, budget);
4501 for (; rx_left > 0; rx_left--, cur_rx++) {
4502 unsigned int entry = cur_rx % NUM_RX_DESC;
4503 struct RxDesc *desc = tp->RxDescArray + entry;
4507 status = le32_to_cpu(desc->opts1);
4509 if (status & DescOwn)
4511 if (unlikely(status & RxRES)) {
4512 netif_info(tp, rx_err, dev, "Rx ERROR. status = %08x\n",
4514 dev->stats.rx_errors++;
4515 if (status & (RxRWT | RxRUNT))
4516 dev->stats.rx_length_errors++;
4518 dev->stats.rx_crc_errors++;
4519 if (status & RxFOVF) {
4520 rtl8169_schedule_work(dev, rtl8169_reset_task);
4521 dev->stats.rx_fifo_errors++;
4523 rtl8169_mark_to_asic(desc, tp->rx_buf_sz);
4525 struct sk_buff *skb = tp->Rx_skbuff[entry];
4526 dma_addr_t addr = le64_to_cpu(desc->addr);
4527 int pkt_size = (status & 0x00001FFF) - 4;
4528 struct pci_dev *pdev = tp->pci_dev;
4531 * The driver does not support incoming fragmented
4532 * frames. They are seen as a symptom of over-mtu
4535 if (unlikely(rtl8169_fragmented_frame(status))) {
4536 dev->stats.rx_dropped++;
4537 dev->stats.rx_length_errors++;
4538 rtl8169_mark_to_asic(desc, tp->rx_buf_sz);
4542 rtl8169_rx_csum(skb, desc);
4544 if (rtl8169_try_rx_copy(&skb, tp, pkt_size, addr)) {
4545 pci_dma_sync_single_for_device(pdev, addr,
4546 pkt_size, PCI_DMA_FROMDEVICE);
4547 rtl8169_mark_to_asic(desc, tp->rx_buf_sz);
4549 pci_unmap_single(pdev, addr, tp->rx_buf_sz,
4550 PCI_DMA_FROMDEVICE);
4551 tp->Rx_skbuff[entry] = NULL;
4554 skb_put(skb, pkt_size);
4555 skb->protocol = eth_type_trans(skb, dev);
4557 if (rtl8169_rx_vlan_skb(tp, desc, skb, polling) < 0) {
4558 if (likely(polling))
4559 netif_receive_skb(skb);
4564 dev->stats.rx_bytes += pkt_size;
4565 dev->stats.rx_packets++;
4568 /* Work around for AMD plateform. */
4569 if ((desc->opts2 & cpu_to_le32(0xfffe000)) &&
4570 (tp->mac_version == RTL_GIGA_MAC_VER_05)) {
4576 count = cur_rx - tp->cur_rx;
4577 tp->cur_rx = cur_rx;
4579 delta = rtl8169_rx_fill(tp, dev, tp->dirty_rx, tp->cur_rx);
4580 if (!delta && count)
4581 netif_info(tp, intr, dev, "no Rx buffer allocated\n");
4582 tp->dirty_rx += delta;
4585 * FIXME: until there is periodic timer to try and refill the ring,
4586 * a temporary shortage may definitely kill the Rx process.
4587 * - disable the asic to try and avoid an overflow and kick it again
4589 * - how do others driver handle this condition (Uh oh...).
4591 if (tp->dirty_rx + NUM_RX_DESC == tp->cur_rx)
4592 netif_emerg(tp, intr, dev, "Rx buffers exhausted\n");
4597 static irqreturn_t rtl8169_interrupt(int irq, void *dev_instance)
4599 struct net_device *dev = dev_instance;
4600 struct rtl8169_private *tp = netdev_priv(dev);
4601 void __iomem *ioaddr = tp->mmio_addr;
4605 /* loop handling interrupts until we have no new ones or
4606 * we hit a invalid/hotplug case.
4608 status = RTL_R16(IntrStatus);
4609 while (status && status != 0xffff) {
4612 /* Handle all of the error cases first. These will reset
4613 * the chip, so just exit the loop.
4615 if (unlikely(!netif_running(dev))) {
4616 rtl8169_asic_down(ioaddr);
4620 /* Work around for rx fifo overflow */
4621 if (unlikely(status & RxFIFOOver) &&
4622 (tp->mac_version == RTL_GIGA_MAC_VER_11)) {
4623 netif_stop_queue(dev);
4624 rtl8169_tx_timeout(dev);
4628 if (unlikely(status & SYSErr)) {
4629 rtl8169_pcierr_interrupt(dev);
4633 if (status & LinkChg)
4634 rtl8169_check_link_status(dev, tp, ioaddr);
4636 /* We need to see the lastest version of tp->intr_mask to
4637 * avoid ignoring an MSI interrupt and having to wait for
4638 * another event which may never come.
4641 if (status & tp->intr_mask & tp->napi_event) {
4642 RTL_W16(IntrMask, tp->intr_event & ~tp->napi_event);
4643 tp->intr_mask = ~tp->napi_event;
4645 if (likely(napi_schedule_prep(&tp->napi)))
4646 __napi_schedule(&tp->napi);
4648 netif_info(tp, intr, dev,
4649 "interrupt %04x in poll\n", status);
4652 /* We only get a new MSI interrupt when all active irq
4653 * sources on the chip have been acknowledged. So, ack
4654 * everything we've seen and check if new sources have become
4655 * active to avoid blocking all interrupts from the chip.
4658 (status & RxFIFOOver) ? (status | RxOverflow) : status);
4659 status = RTL_R16(IntrStatus);
4662 return IRQ_RETVAL(handled);
4665 static int rtl8169_poll(struct napi_struct *napi, int budget)
4667 struct rtl8169_private *tp = container_of(napi, struct rtl8169_private, napi);
4668 struct net_device *dev = tp->dev;
4669 void __iomem *ioaddr = tp->mmio_addr;
4672 work_done = rtl8169_rx_interrupt(dev, tp, ioaddr, (u32) budget);
4673 rtl8169_tx_interrupt(dev, tp, ioaddr);
4675 if (work_done < budget) {
4676 napi_complete(napi);
4678 /* We need for force the visibility of tp->intr_mask
4679 * for other CPUs, as we can loose an MSI interrupt
4680 * and potentially wait for a retransmit timeout if we don't.
4681 * The posted write to IntrMask is safe, as it will
4682 * eventually make it to the chip and we won't loose anything
4685 tp->intr_mask = 0xffff;
4687 RTL_W16(IntrMask, tp->intr_event);
4693 static void rtl8169_rx_missed(struct net_device *dev, void __iomem *ioaddr)
4695 struct rtl8169_private *tp = netdev_priv(dev);
4697 if (tp->mac_version > RTL_GIGA_MAC_VER_06)
4700 dev->stats.rx_missed_errors += (RTL_R32(RxMissed) & 0xffffff);
4701 RTL_W32(RxMissed, 0);
4704 static void rtl8169_down(struct net_device *dev)
4706 struct rtl8169_private *tp = netdev_priv(dev);
4707 void __iomem *ioaddr = tp->mmio_addr;
4708 unsigned int intrmask;
4710 rtl8169_delete_timer(dev);
4712 netif_stop_queue(dev);
4714 napi_disable(&tp->napi);
4717 spin_lock_irq(&tp->lock);
4719 rtl8169_asic_down(ioaddr);
4721 rtl8169_rx_missed(dev, ioaddr);
4723 spin_unlock_irq(&tp->lock);
4725 synchronize_irq(dev->irq);
4727 /* Give a racing hard_start_xmit a few cycles to complete. */
4728 synchronize_sched(); /* FIXME: should this be synchronize_irq()? */
4731 * And now for the 50k$ question: are IRQ disabled or not ?
4733 * Two paths lead here:
4735 * -> netif_running() is available to sync the current code and the
4736 * IRQ handler. See rtl8169_interrupt for details.
4737 * 2) dev->change_mtu
4738 * -> rtl8169_poll can not be issued again and re-enable the
4739 * interruptions. Let's simply issue the IRQ down sequence again.
4741 * No loop if hotpluged or major error (0xffff).
4743 intrmask = RTL_R16(IntrMask);
4744 if (intrmask && (intrmask != 0xffff))
4747 rtl8169_tx_clear(tp);
4749 rtl8169_rx_clear(tp);
4752 static int rtl8169_close(struct net_device *dev)
4754 struct rtl8169_private *tp = netdev_priv(dev);
4755 struct pci_dev *pdev = tp->pci_dev;
4757 pm_runtime_get_sync(&pdev->dev);
4759 /* update counters before going down */
4760 rtl8169_update_counters(dev);
4764 free_irq(dev->irq, dev);
4766 pci_free_consistent(pdev, R8169_RX_RING_BYTES, tp->RxDescArray,
4768 pci_free_consistent(pdev, R8169_TX_RING_BYTES, tp->TxDescArray,
4770 tp->TxDescArray = NULL;
4771 tp->RxDescArray = NULL;
4773 pm_runtime_put_sync(&pdev->dev);
4778 static void rtl_set_rx_mode(struct net_device *dev)
4780 struct rtl8169_private *tp = netdev_priv(dev);
4781 void __iomem *ioaddr = tp->mmio_addr;
4782 unsigned long flags;
4783 u32 mc_filter[2]; /* Multicast hash filter */
4787 if (dev->flags & IFF_PROMISC) {
4788 /* Unconditionally log net taps. */
4789 netif_notice(tp, link, dev, "Promiscuous mode enabled\n");
4791 AcceptBroadcast | AcceptMulticast | AcceptMyPhys |
4793 mc_filter[1] = mc_filter[0] = 0xffffffff;
4794 } else if ((netdev_mc_count(dev) > multicast_filter_limit) ||
4795 (dev->flags & IFF_ALLMULTI)) {
4796 /* Too many to filter perfectly -- accept all multicasts. */
4797 rx_mode = AcceptBroadcast | AcceptMulticast | AcceptMyPhys;
4798 mc_filter[1] = mc_filter[0] = 0xffffffff;
4800 struct netdev_hw_addr *ha;
4802 rx_mode = AcceptBroadcast | AcceptMyPhys;
4803 mc_filter[1] = mc_filter[0] = 0;
4804 netdev_for_each_mc_addr(ha, dev) {
4805 int bit_nr = ether_crc(ETH_ALEN, ha->addr) >> 26;
4806 mc_filter[bit_nr >> 5] |= 1 << (bit_nr & 31);
4807 rx_mode |= AcceptMulticast;
4811 spin_lock_irqsave(&tp->lock, flags);
4813 tmp = rtl8169_rx_config | rx_mode |
4814 (RTL_R32(RxConfig) & rtl_chip_info[tp->chipset].RxConfigMask);
4816 if (tp->mac_version > RTL_GIGA_MAC_VER_06) {
4817 u32 data = mc_filter[0];
4819 mc_filter[0] = swab32(mc_filter[1]);
4820 mc_filter[1] = swab32(data);
4823 RTL_W32(MAR0 + 4, mc_filter[1]);
4824 RTL_W32(MAR0 + 0, mc_filter[0]);
4826 RTL_W32(RxConfig, tmp);
4828 spin_unlock_irqrestore(&tp->lock, flags);
4832 * rtl8169_get_stats - Get rtl8169 read/write statistics
4833 * @dev: The Ethernet Device to get statistics for
4835 * Get TX/RX statistics for rtl8169
4837 static struct net_device_stats *rtl8169_get_stats(struct net_device *dev)
4839 struct rtl8169_private *tp = netdev_priv(dev);
4840 void __iomem *ioaddr = tp->mmio_addr;
4841 unsigned long flags;
4843 if (netif_running(dev)) {
4844 spin_lock_irqsave(&tp->lock, flags);
4845 rtl8169_rx_missed(dev, ioaddr);
4846 spin_unlock_irqrestore(&tp->lock, flags);
4852 static void rtl8169_net_suspend(struct net_device *dev)
4854 if (!netif_running(dev))
4857 netif_device_detach(dev);
4858 netif_stop_queue(dev);
4863 static int rtl8169_suspend(struct device *device)
4865 struct pci_dev *pdev = to_pci_dev(device);
4866 struct net_device *dev = pci_get_drvdata(pdev);
4868 rtl8169_net_suspend(dev);
4873 static void __rtl8169_resume(struct net_device *dev)
4875 netif_device_attach(dev);
4876 rtl8169_schedule_work(dev, rtl8169_reset_task);
4879 static int rtl8169_resume(struct device *device)
4881 struct pci_dev *pdev = to_pci_dev(device);
4882 struct net_device *dev = pci_get_drvdata(pdev);
4884 if (netif_running(dev))
4885 __rtl8169_resume(dev);
4890 static int rtl8169_runtime_suspend(struct device *device)
4892 struct pci_dev *pdev = to_pci_dev(device);
4893 struct net_device *dev = pci_get_drvdata(pdev);
4894 struct rtl8169_private *tp = netdev_priv(dev);
4896 if (!tp->TxDescArray)
4899 spin_lock_irq(&tp->lock);
4900 tp->saved_wolopts = __rtl8169_get_wol(tp);
4901 __rtl8169_set_wol(tp, WAKE_ANY);
4902 spin_unlock_irq(&tp->lock);
4904 rtl8169_net_suspend(dev);
4909 static int rtl8169_runtime_resume(struct device *device)
4911 struct pci_dev *pdev = to_pci_dev(device);
4912 struct net_device *dev = pci_get_drvdata(pdev);
4913 struct rtl8169_private *tp = netdev_priv(dev);
4915 if (!tp->TxDescArray)
4918 spin_lock_irq(&tp->lock);
4919 __rtl8169_set_wol(tp, tp->saved_wolopts);
4920 tp->saved_wolopts = 0;
4921 spin_unlock_irq(&tp->lock);
4923 __rtl8169_resume(dev);
4928 static int rtl8169_runtime_idle(struct device *device)
4930 struct pci_dev *pdev = to_pci_dev(device);
4931 struct net_device *dev = pci_get_drvdata(pdev);
4932 struct rtl8169_private *tp = netdev_priv(dev);
4934 if (!tp->TxDescArray)
4937 rtl8169_check_link_status(dev, tp, tp->mmio_addr);
4941 static const struct dev_pm_ops rtl8169_pm_ops = {
4942 .suspend = rtl8169_suspend,
4943 .resume = rtl8169_resume,
4944 .freeze = rtl8169_suspend,
4945 .thaw = rtl8169_resume,
4946 .poweroff = rtl8169_suspend,
4947 .restore = rtl8169_resume,
4948 .runtime_suspend = rtl8169_runtime_suspend,
4949 .runtime_resume = rtl8169_runtime_resume,
4950 .runtime_idle = rtl8169_runtime_idle,
4953 #define RTL8169_PM_OPS (&rtl8169_pm_ops)
4955 #else /* !CONFIG_PM */
4957 #define RTL8169_PM_OPS NULL
4959 #endif /* !CONFIG_PM */
4961 static void rtl_shutdown(struct pci_dev *pdev)
4963 struct net_device *dev = pci_get_drvdata(pdev);
4964 struct rtl8169_private *tp = netdev_priv(dev);
4965 void __iomem *ioaddr = tp->mmio_addr;
4967 rtl8169_net_suspend(dev);
4969 /* restore original MAC address */
4970 rtl_rar_set(tp, dev->perm_addr);
4972 spin_lock_irq(&tp->lock);
4974 rtl8169_asic_down(ioaddr);
4976 spin_unlock_irq(&tp->lock);
4978 if (system_state == SYSTEM_POWER_OFF) {
4979 /* WoL fails with some 8168 when the receiver is disabled. */
4980 if (tp->features & RTL_FEATURE_WOL) {
4981 pci_clear_master(pdev);
4983 RTL_W8(ChipCmd, CmdRxEnb);
4988 pci_wake_from_d3(pdev, true);
4989 pci_set_power_state(pdev, PCI_D3hot);
4993 static struct pci_driver rtl8169_pci_driver = {
4995 .id_table = rtl8169_pci_tbl,
4996 .probe = rtl8169_init_one,
4997 .remove = __devexit_p(rtl8169_remove_one),
4998 .shutdown = rtl_shutdown,
4999 .driver.pm = RTL8169_PM_OPS,
5002 static int __init rtl8169_init_module(void)
5004 return pci_register_driver(&rtl8169_pci_driver);
5007 static void __exit rtl8169_cleanup_module(void)
5009 pci_unregister_driver(&rtl8169_pci_driver);
5012 module_init(rtl8169_init_module);
5013 module_exit(rtl8169_cleanup_module);