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>
27 #include <asm/system.h>
31 #ifdef CONFIG_R8169_NAPI
32 #define NAPI_SUFFIX "-NAPI"
34 #define NAPI_SUFFIX ""
37 #define RTL8169_VERSION "2.2LK" NAPI_SUFFIX
38 #define MODULENAME "r8169"
39 #define PFX MODULENAME ": "
42 #define assert(expr) \
44 printk( "Assertion failed! %s,%s,%s,line=%d\n", \
45 #expr,__FILE__,__FUNCTION__,__LINE__); \
47 #define dprintk(fmt, args...) do { printk(PFX fmt, ## args); } while (0)
49 #define assert(expr) do {} while (0)
50 #define dprintk(fmt, args...) do {} while (0)
51 #endif /* RTL8169_DEBUG */
53 #define R8169_MSG_DEFAULT \
54 (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_IFUP | NETIF_MSG_IFDOWN)
56 #define TX_BUFFS_AVAIL(tp) \
57 (tp->dirty_tx + NUM_TX_DESC - tp->cur_tx - 1)
59 #ifdef CONFIG_R8169_NAPI
60 #define rtl8169_rx_skb netif_receive_skb
61 #define rtl8169_rx_hwaccel_skb vlan_hwaccel_receive_skb
62 #define rtl8169_rx_quota(count, quota) min(count, quota)
64 #define rtl8169_rx_skb netif_rx
65 #define rtl8169_rx_hwaccel_skb vlan_hwaccel_rx
66 #define rtl8169_rx_quota(count, quota) count
69 /* Maximum events (Rx packets, etc.) to handle at each interrupt. */
70 static const int max_interrupt_work
= 20;
72 /* Maximum number of multicast addresses to filter (vs. Rx-all-multicast).
73 The RTL chips use a 64 element hash table based on the Ethernet CRC. */
74 static const int multicast_filter_limit
= 32;
76 /* MAC address length */
77 #define MAC_ADDR_LEN 6
79 #define RX_FIFO_THRESH 7 /* 7 means NO threshold, Rx buffer level before first PCI xfer. */
80 #define RX_DMA_BURST 6 /* Maximum PCI burst, '6' is 1024 */
81 #define TX_DMA_BURST 6 /* Maximum PCI burst, '6' is 1024 */
82 #define EarlyTxThld 0x3F /* 0x3F means NO early transmit */
83 #define RxPacketMaxSize 0x3FE8 /* 16K - 1 - ETH_HLEN - VLAN - CRC... */
84 #define SafeMtu 0x1c20 /* ... actually life sucks beyond ~7k */
85 #define InterFrameGap 0x03 /* 3 means InterFrameGap = the shortest one */
87 #define R8169_REGS_SIZE 256
88 #define R8169_NAPI_WEIGHT 64
89 #define NUM_TX_DESC 64 /* Number of Tx descriptor registers */
90 #define NUM_RX_DESC 256 /* Number of Rx descriptor registers */
91 #define RX_BUF_SIZE 1536 /* Rx Buffer size */
92 #define R8169_TX_RING_BYTES (NUM_TX_DESC * sizeof(struct TxDesc))
93 #define R8169_RX_RING_BYTES (NUM_RX_DESC * sizeof(struct RxDesc))
95 #define RTL8169_TX_TIMEOUT (6*HZ)
96 #define RTL8169_PHY_TIMEOUT (10*HZ)
98 /* write/read MMIO register */
99 #define RTL_W8(reg, val8) writeb ((val8), ioaddr + (reg))
100 #define RTL_W16(reg, val16) writew ((val16), ioaddr + (reg))
101 #define RTL_W32(reg, val32) writel ((val32), ioaddr + (reg))
102 #define RTL_R8(reg) readb (ioaddr + (reg))
103 #define RTL_R16(reg) readw (ioaddr + (reg))
104 #define RTL_R32(reg) ((unsigned long) readl (ioaddr + (reg)))
107 RTL_GIGA_MAC_VER_01
= 0x01, // 8169
108 RTL_GIGA_MAC_VER_02
= 0x02, // 8169S
109 RTL_GIGA_MAC_VER_03
= 0x03, // 8110S
110 RTL_GIGA_MAC_VER_04
= 0x04, // 8169SB
111 RTL_GIGA_MAC_VER_05
= 0x05, // 8110SCd
112 RTL_GIGA_MAC_VER_06
= 0x06, // 8110SCe
113 RTL_GIGA_MAC_VER_11
= 0x0b, // 8168Bb
114 RTL_GIGA_MAC_VER_12
= 0x0c, // 8168Be 8168Bf
115 RTL_GIGA_MAC_VER_13
= 0x0d, // 8101Eb 8101Ec
116 RTL_GIGA_MAC_VER_14
= 0x0e, // 8101
117 RTL_GIGA_MAC_VER_15
= 0x0f // 8101
121 RTL_GIGA_PHY_VER_C
= 0x03, /* PHY Reg 0x03 bit0-3 == 0x0000 */
122 RTL_GIGA_PHY_VER_D
= 0x04, /* PHY Reg 0x03 bit0-3 == 0x0000 */
123 RTL_GIGA_PHY_VER_E
= 0x05, /* PHY Reg 0x03 bit0-3 == 0x0000 */
124 RTL_GIGA_PHY_VER_F
= 0x06, /* PHY Reg 0x03 bit0-3 == 0x0001 */
125 RTL_GIGA_PHY_VER_G
= 0x07, /* PHY Reg 0x03 bit0-3 == 0x0002 */
126 RTL_GIGA_PHY_VER_H
= 0x08, /* PHY Reg 0x03 bit0-3 == 0x0003 */
129 #define _R(NAME,MAC,MASK) \
130 { .name = NAME, .mac_version = MAC, .RxConfigMask = MASK }
132 static const struct {
135 u32 RxConfigMask
; /* Clears the bits supported by this chip */
136 } rtl_chip_info
[] = {
137 _R("RTL8169", RTL_GIGA_MAC_VER_01
, 0xff7e1880), // 8169
138 _R("RTL8169s", RTL_GIGA_MAC_VER_02
, 0xff7e1880), // 8169S
139 _R("RTL8110s", RTL_GIGA_MAC_VER_03
, 0xff7e1880), // 8110S
140 _R("RTL8169sb/8110sb", RTL_GIGA_MAC_VER_04
, 0xff7e1880), // 8169SB
141 _R("RTL8169sc/8110sc", RTL_GIGA_MAC_VER_05
, 0xff7e1880), // 8110SCd
142 _R("RTL8169sc/8110sc", RTL_GIGA_MAC_VER_06
, 0xff7e1880), // 8110SCe
143 _R("RTL8168b/8111b", RTL_GIGA_MAC_VER_11
, 0xff7e1880), // PCI-E
144 _R("RTL8168b/8111b", RTL_GIGA_MAC_VER_12
, 0xff7e1880), // PCI-E
145 _R("RTL8101e", RTL_GIGA_MAC_VER_13
, 0xff7e1880), // PCI-E 8139
146 _R("RTL8100e", RTL_GIGA_MAC_VER_14
, 0xff7e1880), // PCI-E 8139
147 _R("RTL8100e", RTL_GIGA_MAC_VER_15
, 0xff7e1880) // PCI-E 8139
157 static void rtl_hw_start_8169(struct net_device
*);
158 static void rtl_hw_start_8168(struct net_device
*);
159 static void rtl_hw_start_8101(struct net_device
*);
161 static struct pci_device_id rtl8169_pci_tbl
[] = {
162 { PCI_DEVICE(PCI_VENDOR_ID_REALTEK
, 0x8129), 0, 0, RTL_CFG_0
},
163 { PCI_DEVICE(PCI_VENDOR_ID_REALTEK
, 0x8136), 0, 0, RTL_CFG_2
},
164 { PCI_DEVICE(PCI_VENDOR_ID_REALTEK
, 0x8167), 0, 0, RTL_CFG_0
},
165 { PCI_DEVICE(PCI_VENDOR_ID_REALTEK
, 0x8168), 0, 0, RTL_CFG_1
},
166 { PCI_DEVICE(PCI_VENDOR_ID_REALTEK
, 0x8169), 0, 0, RTL_CFG_0
},
167 { PCI_DEVICE(PCI_VENDOR_ID_DLINK
, 0x4300), 0, 0, RTL_CFG_0
},
168 { PCI_DEVICE(0x1259, 0xc107), 0, 0, RTL_CFG_0
},
169 { PCI_DEVICE(0x16ec, 0x0116), 0, 0, RTL_CFG_0
},
170 { PCI_VENDOR_ID_LINKSYS
, 0x1032,
171 PCI_ANY_ID
, 0x0024, 0, 0, RTL_CFG_0
},
175 MODULE_DEVICE_TABLE(pci
, rtl8169_pci_tbl
);
177 static int rx_copybreak
= 200;
184 MAC0
= 0, /* Ethernet hardware address. */
186 MAR0
= 8, /* Multicast filter. */
187 CounterAddrLow
= 0x10,
188 CounterAddrHigh
= 0x14,
189 TxDescStartAddrLow
= 0x20,
190 TxDescStartAddrHigh
= 0x24,
191 TxHDescStartAddrLow
= 0x28,
192 TxHDescStartAddrHigh
= 0x2c,
218 RxDescAddrLow
= 0xe4,
219 RxDescAddrHigh
= 0xe8,
222 FuncEventMask
= 0xf4,
223 FuncPresetState
= 0xf8,
224 FuncForceEvent
= 0xfc,
227 enum rtl_register_content
{
228 /* InterruptStatusBits */
232 TxDescUnavail
= 0x0080,
254 /* TXPoll register p.5 */
255 HPQ
= 0x80, /* Poll cmd on the high prio queue */
256 NPQ
= 0x40, /* Poll cmd on the low prio queue */
257 FSWInt
= 0x01, /* Forced software interrupt */
261 Cfg9346_Unlock
= 0xc0,
266 AcceptBroadcast
= 0x08,
267 AcceptMulticast
= 0x04,
269 AcceptAllPhys
= 0x01,
276 TxInterFrameGapShift
= 24,
277 TxDMAShift
= 8, /* DMA burst value (0-7) is shift this many bits */
279 /* Config1 register p.24 */
280 PMEnable
= (1 << 0), /* Power Management Enable */
282 /* Config2 register p. 25 */
283 PCI_Clock_66MHz
= 0x01,
284 PCI_Clock_33MHz
= 0x00,
286 /* Config3 register p.25 */
287 MagicPacket
= (1 << 5), /* Wake up when receives a Magic Packet */
288 LinkUp
= (1 << 4), /* Wake up when the cable connection is re-established */
290 /* Config5 register p.27 */
291 BWF
= (1 << 6), /* Accept Broadcast wakeup frame */
292 MWF
= (1 << 5), /* Accept Multicast wakeup frame */
293 UWF
= (1 << 4), /* Accept Unicast wakeup frame */
294 LanWake
= (1 << 1), /* LanWake enable/disable */
295 PMEStatus
= (1 << 0), /* PME status can be reset by PCI RST# */
298 TBIReset
= 0x80000000,
299 TBILoopback
= 0x40000000,
300 TBINwEnable
= 0x20000000,
301 TBINwRestart
= 0x10000000,
302 TBILinkOk
= 0x02000000,
303 TBINwComplete
= 0x01000000,
306 PktCntrDisable
= (1 << 7), // 8168
311 INTT_0
= 0x0000, // 8168
312 INTT_1
= 0x0001, // 8168
313 INTT_2
= 0x0002, // 8168
314 INTT_3
= 0x0003, // 8168
316 /* rtl8169_PHYstatus */
327 TBILinkOK
= 0x02000000,
329 /* DumpCounterCommand */
333 enum desc_status_bit
{
334 DescOwn
= (1 << 31), /* Descriptor is owned by NIC */
335 RingEnd
= (1 << 30), /* End of descriptor ring */
336 FirstFrag
= (1 << 29), /* First segment of a packet */
337 LastFrag
= (1 << 28), /* Final segment of a packet */
340 LargeSend
= (1 << 27), /* TCP Large Send Offload (TSO) */
341 MSSShift
= 16, /* MSS value position */
342 MSSMask
= 0xfff, /* MSS value + LargeSend bit: 12 bits */
343 IPCS
= (1 << 18), /* Calculate IP checksum */
344 UDPCS
= (1 << 17), /* Calculate UDP/IP checksum */
345 TCPCS
= (1 << 16), /* Calculate TCP/IP checksum */
346 TxVlanTag
= (1 << 17), /* Add VLAN tag */
349 PID1
= (1 << 18), /* Protocol ID bit 1/2 */
350 PID0
= (1 << 17), /* Protocol ID bit 2/2 */
352 #define RxProtoUDP (PID1)
353 #define RxProtoTCP (PID0)
354 #define RxProtoIP (PID1 | PID0)
355 #define RxProtoMask RxProtoIP
357 IPFail
= (1 << 16), /* IP checksum failed */
358 UDPFail
= (1 << 15), /* UDP/IP checksum failed */
359 TCPFail
= (1 << 14), /* TCP/IP checksum failed */
360 RxVlanTag
= (1 << 16), /* VLAN tag available */
363 #define RsvdMask 0x3fffc000
380 u8 __pad
[sizeof(void *) - sizeof(u32
)];
383 struct rtl8169_private
{
384 void __iomem
*mmio_addr
; /* memory map physical address */
385 struct pci_dev
*pci_dev
; /* Index of PCI device */
386 struct net_device
*dev
;
387 struct net_device_stats stats
; /* statistics of net device */
388 spinlock_t lock
; /* spin lock flag */
393 u32 cur_rx
; /* Index into the Rx descriptor buffer of next Rx pkt. */
394 u32 cur_tx
; /* Index into the Tx descriptor buffer of next Rx pkt. */
397 struct TxDesc
*TxDescArray
; /* 256-aligned Tx descriptor ring */
398 struct RxDesc
*RxDescArray
; /* 256-aligned Rx descriptor ring */
399 dma_addr_t TxPhyAddr
;
400 dma_addr_t RxPhyAddr
;
401 struct sk_buff
*Rx_skbuff
[NUM_RX_DESC
]; /* Rx data buffers */
402 struct ring_info tx_skb
[NUM_TX_DESC
]; /* Tx data buffers */
405 struct timer_list timer
;
410 int phy_auto_nego_reg
;
411 int phy_1000_ctrl_reg
;
412 #ifdef CONFIG_R8169_VLAN
413 struct vlan_group
*vlgrp
;
415 int (*set_speed
)(struct net_device
*, u8 autoneg
, u16 speed
, u8 duplex
);
416 void (*get_settings
)(struct net_device
*, struct ethtool_cmd
*);
417 void (*phy_reset_enable
)(void __iomem
*);
418 void (*hw_start
)(struct net_device
*);
419 unsigned int (*phy_reset_pending
)(void __iomem
*);
420 unsigned int (*link_ok
)(void __iomem
*);
421 struct delayed_work task
;
422 unsigned wol_enabled
: 1;
425 MODULE_AUTHOR("Realtek and the Linux r8169 crew <netdev@vger.kernel.org>");
426 MODULE_DESCRIPTION("RealTek RTL-8169 Gigabit Ethernet driver");
427 module_param(rx_copybreak
, int, 0);
428 MODULE_PARM_DESC(rx_copybreak
, "Copy breakpoint for copy-only-tiny-frames");
429 module_param(use_dac
, int, 0);
430 MODULE_PARM_DESC(use_dac
, "Enable PCI DAC. Unsafe on 32 bit PCI slot.");
431 module_param_named(debug
, debug
.msg_enable
, int, 0);
432 MODULE_PARM_DESC(debug
, "Debug verbosity level (0=none, ..., 16=all)");
433 MODULE_LICENSE("GPL");
434 MODULE_VERSION(RTL8169_VERSION
);
436 static int rtl8169_open(struct net_device
*dev
);
437 static int rtl8169_start_xmit(struct sk_buff
*skb
, struct net_device
*dev
);
438 static irqreturn_t
rtl8169_interrupt(int irq
, void *dev_instance
);
439 static int rtl8169_init_ring(struct net_device
*dev
);
440 static void rtl_hw_start(struct net_device
*dev
);
441 static int rtl8169_close(struct net_device
*dev
);
442 static void rtl_set_rx_mode(struct net_device
*dev
);
443 static void rtl8169_tx_timeout(struct net_device
*dev
);
444 static struct net_device_stats
*rtl8169_get_stats(struct net_device
*dev
);
445 static int rtl8169_rx_interrupt(struct net_device
*, struct rtl8169_private
*,
447 static int rtl8169_change_mtu(struct net_device
*dev
, int new_mtu
);
448 static void rtl8169_down(struct net_device
*dev
);
449 static void rtl8169_rx_clear(struct rtl8169_private
*tp
);
451 #ifdef CONFIG_R8169_NAPI
452 static int rtl8169_poll(struct net_device
*dev
, int *budget
);
455 static const unsigned int rtl8169_rx_config
=
456 (RX_FIFO_THRESH
<< RxCfgFIFOShift
) | (RX_DMA_BURST
<< RxCfgDMAShift
);
458 static void mdio_write(void __iomem
*ioaddr
, int reg_addr
, int value
)
462 RTL_W32(PHYAR
, 0x80000000 | (reg_addr
& 0xFF) << 16 | value
);
464 for (i
= 20; i
> 0; i
--) {
466 * Check if the RTL8169 has completed writing to the specified
469 if (!(RTL_R32(PHYAR
) & 0x80000000))
475 static int mdio_read(void __iomem
*ioaddr
, int reg_addr
)
479 RTL_W32(PHYAR
, 0x0 | (reg_addr
& 0xFF) << 16);
481 for (i
= 20; i
> 0; i
--) {
483 * Check if the RTL8169 has completed retrieving data from
484 * the specified MII register.
486 if (RTL_R32(PHYAR
) & 0x80000000) {
487 value
= (int) (RTL_R32(PHYAR
) & 0xFFFF);
495 static void rtl8169_irq_mask_and_ack(void __iomem
*ioaddr
)
497 RTL_W16(IntrMask
, 0x0000);
499 RTL_W16(IntrStatus
, 0xffff);
502 static void rtl8169_asic_down(void __iomem
*ioaddr
)
504 RTL_W8(ChipCmd
, 0x00);
505 rtl8169_irq_mask_and_ack(ioaddr
);
509 static unsigned int rtl8169_tbi_reset_pending(void __iomem
*ioaddr
)
511 return RTL_R32(TBICSR
) & TBIReset
;
514 static unsigned int rtl8169_xmii_reset_pending(void __iomem
*ioaddr
)
516 return mdio_read(ioaddr
, MII_BMCR
) & BMCR_RESET
;
519 static unsigned int rtl8169_tbi_link_ok(void __iomem
*ioaddr
)
521 return RTL_R32(TBICSR
) & TBILinkOk
;
524 static unsigned int rtl8169_xmii_link_ok(void __iomem
*ioaddr
)
526 return RTL_R8(PHYstatus
) & LinkStatus
;
529 static void rtl8169_tbi_reset_enable(void __iomem
*ioaddr
)
531 RTL_W32(TBICSR
, RTL_R32(TBICSR
) | TBIReset
);
534 static void rtl8169_xmii_reset_enable(void __iomem
*ioaddr
)
538 val
= mdio_read(ioaddr
, MII_BMCR
) | BMCR_RESET
;
539 mdio_write(ioaddr
, MII_BMCR
, val
& 0xffff);
542 static void rtl8169_check_link_status(struct net_device
*dev
,
543 struct rtl8169_private
*tp
,
544 void __iomem
*ioaddr
)
548 spin_lock_irqsave(&tp
->lock
, flags
);
549 if (tp
->link_ok(ioaddr
)) {
550 netif_carrier_on(dev
);
551 if (netif_msg_ifup(tp
))
552 printk(KERN_INFO PFX
"%s: link up\n", dev
->name
);
554 if (netif_msg_ifdown(tp
))
555 printk(KERN_INFO PFX
"%s: link down\n", dev
->name
);
556 netif_carrier_off(dev
);
558 spin_unlock_irqrestore(&tp
->lock
, flags
);
561 static void rtl8169_get_wol(struct net_device
*dev
, struct ethtool_wolinfo
*wol
)
563 struct rtl8169_private
*tp
= netdev_priv(dev
);
564 void __iomem
*ioaddr
= tp
->mmio_addr
;
569 #define WAKE_ANY (WAKE_PHY | WAKE_MAGIC | WAKE_UCAST | WAKE_BCAST | WAKE_MCAST)
570 wol
->supported
= WAKE_ANY
;
572 spin_lock_irq(&tp
->lock
);
574 options
= RTL_R8(Config1
);
575 if (!(options
& PMEnable
))
578 options
= RTL_R8(Config3
);
579 if (options
& LinkUp
)
580 wol
->wolopts
|= WAKE_PHY
;
581 if (options
& MagicPacket
)
582 wol
->wolopts
|= WAKE_MAGIC
;
584 options
= RTL_R8(Config5
);
586 wol
->wolopts
|= WAKE_UCAST
;
588 wol
->wolopts
|= WAKE_BCAST
;
590 wol
->wolopts
|= WAKE_MCAST
;
593 spin_unlock_irq(&tp
->lock
);
596 static int rtl8169_set_wol(struct net_device
*dev
, struct ethtool_wolinfo
*wol
)
598 struct rtl8169_private
*tp
= netdev_priv(dev
);
599 void __iomem
*ioaddr
= tp
->mmio_addr
;
606 { WAKE_ANY
, Config1
, PMEnable
},
607 { WAKE_PHY
, Config3
, LinkUp
},
608 { WAKE_MAGIC
, Config3
, MagicPacket
},
609 { WAKE_UCAST
, Config5
, UWF
},
610 { WAKE_BCAST
, Config5
, BWF
},
611 { WAKE_MCAST
, Config5
, MWF
},
612 { WAKE_ANY
, Config5
, LanWake
}
615 spin_lock_irq(&tp
->lock
);
617 RTL_W8(Cfg9346
, Cfg9346_Unlock
);
619 for (i
= 0; i
< ARRAY_SIZE(cfg
); i
++) {
620 u8 options
= RTL_R8(cfg
[i
].reg
) & ~cfg
[i
].mask
;
621 if (wol
->wolopts
& cfg
[i
].opt
)
622 options
|= cfg
[i
].mask
;
623 RTL_W8(cfg
[i
].reg
, options
);
626 RTL_W8(Cfg9346
, Cfg9346_Lock
);
628 tp
->wol_enabled
= (wol
->wolopts
) ? 1 : 0;
630 spin_unlock_irq(&tp
->lock
);
635 static void rtl8169_get_drvinfo(struct net_device
*dev
,
636 struct ethtool_drvinfo
*info
)
638 struct rtl8169_private
*tp
= netdev_priv(dev
);
640 strcpy(info
->driver
, MODULENAME
);
641 strcpy(info
->version
, RTL8169_VERSION
);
642 strcpy(info
->bus_info
, pci_name(tp
->pci_dev
));
645 static int rtl8169_get_regs_len(struct net_device
*dev
)
647 return R8169_REGS_SIZE
;
650 static int rtl8169_set_speed_tbi(struct net_device
*dev
,
651 u8 autoneg
, u16 speed
, u8 duplex
)
653 struct rtl8169_private
*tp
= netdev_priv(dev
);
654 void __iomem
*ioaddr
= tp
->mmio_addr
;
658 reg
= RTL_R32(TBICSR
);
659 if ((autoneg
== AUTONEG_DISABLE
) && (speed
== SPEED_1000
) &&
660 (duplex
== DUPLEX_FULL
)) {
661 RTL_W32(TBICSR
, reg
& ~(TBINwEnable
| TBINwRestart
));
662 } else if (autoneg
== AUTONEG_ENABLE
)
663 RTL_W32(TBICSR
, reg
| TBINwEnable
| TBINwRestart
);
665 if (netif_msg_link(tp
)) {
666 printk(KERN_WARNING
"%s: "
667 "incorrect speed setting refused in TBI mode\n",
676 static int rtl8169_set_speed_xmii(struct net_device
*dev
,
677 u8 autoneg
, u16 speed
, u8 duplex
)
679 struct rtl8169_private
*tp
= netdev_priv(dev
);
680 void __iomem
*ioaddr
= tp
->mmio_addr
;
681 int auto_nego
, giga_ctrl
;
683 auto_nego
= mdio_read(ioaddr
, MII_ADVERTISE
);
684 auto_nego
&= ~(ADVERTISE_10HALF
| ADVERTISE_10FULL
|
685 ADVERTISE_100HALF
| ADVERTISE_100FULL
);
686 giga_ctrl
= mdio_read(ioaddr
, MII_CTRL1000
);
687 giga_ctrl
&= ~(ADVERTISE_1000FULL
| ADVERTISE_1000HALF
);
689 if (autoneg
== AUTONEG_ENABLE
) {
690 auto_nego
|= (ADVERTISE_10HALF
| ADVERTISE_10FULL
|
691 ADVERTISE_100HALF
| ADVERTISE_100FULL
);
692 giga_ctrl
|= ADVERTISE_1000FULL
| ADVERTISE_1000HALF
;
694 if (speed
== SPEED_10
)
695 auto_nego
|= ADVERTISE_10HALF
| ADVERTISE_10FULL
;
696 else if (speed
== SPEED_100
)
697 auto_nego
|= ADVERTISE_100HALF
| ADVERTISE_100FULL
;
698 else if (speed
== SPEED_1000
)
699 giga_ctrl
|= ADVERTISE_1000FULL
| ADVERTISE_1000HALF
;
701 if (duplex
== DUPLEX_HALF
)
702 auto_nego
&= ~(ADVERTISE_10FULL
| ADVERTISE_100FULL
);
704 if (duplex
== DUPLEX_FULL
)
705 auto_nego
&= ~(ADVERTISE_10HALF
| ADVERTISE_100HALF
);
707 /* This tweak comes straight from Realtek's driver. */
708 if ((speed
== SPEED_100
) && (duplex
== DUPLEX_HALF
) &&
709 (tp
->mac_version
== RTL_GIGA_MAC_VER_13
)) {
710 auto_nego
= ADVERTISE_100HALF
| ADVERTISE_CSMA
;
714 /* The 8100e/8101e do Fast Ethernet only. */
715 if ((tp
->mac_version
== RTL_GIGA_MAC_VER_13
) ||
716 (tp
->mac_version
== RTL_GIGA_MAC_VER_14
) ||
717 (tp
->mac_version
== RTL_GIGA_MAC_VER_15
)) {
718 if ((giga_ctrl
& (ADVERTISE_1000FULL
| ADVERTISE_1000HALF
)) &&
719 netif_msg_link(tp
)) {
720 printk(KERN_INFO
"%s: PHY does not support 1000Mbps.\n",
723 giga_ctrl
&= ~(ADVERTISE_1000FULL
| ADVERTISE_1000HALF
);
726 auto_nego
|= ADVERTISE_PAUSE_CAP
| ADVERTISE_PAUSE_ASYM
;
728 if (tp
->mac_version
== RTL_GIGA_MAC_VER_12
) {
729 /* Vendor specific (0x1f) and reserved (0x0e) MII registers. */
730 mdio_write(ioaddr
, 0x1f, 0x0000);
731 mdio_write(ioaddr
, 0x0e, 0x0000);
734 tp
->phy_auto_nego_reg
= auto_nego
;
735 tp
->phy_1000_ctrl_reg
= giga_ctrl
;
737 mdio_write(ioaddr
, MII_ADVERTISE
, auto_nego
);
738 mdio_write(ioaddr
, MII_CTRL1000
, giga_ctrl
);
739 mdio_write(ioaddr
, MII_BMCR
, BMCR_ANENABLE
| BMCR_ANRESTART
);
743 static int rtl8169_set_speed(struct net_device
*dev
,
744 u8 autoneg
, u16 speed
, u8 duplex
)
746 struct rtl8169_private
*tp
= netdev_priv(dev
);
749 ret
= tp
->set_speed(dev
, autoneg
, speed
, duplex
);
751 if (netif_running(dev
) && (tp
->phy_1000_ctrl_reg
& ADVERTISE_1000FULL
))
752 mod_timer(&tp
->timer
, jiffies
+ RTL8169_PHY_TIMEOUT
);
757 static int rtl8169_set_settings(struct net_device
*dev
, struct ethtool_cmd
*cmd
)
759 struct rtl8169_private
*tp
= netdev_priv(dev
);
763 spin_lock_irqsave(&tp
->lock
, flags
);
764 ret
= rtl8169_set_speed(dev
, cmd
->autoneg
, cmd
->speed
, cmd
->duplex
);
765 spin_unlock_irqrestore(&tp
->lock
, flags
);
770 static u32
rtl8169_get_rx_csum(struct net_device
*dev
)
772 struct rtl8169_private
*tp
= netdev_priv(dev
);
774 return tp
->cp_cmd
& RxChkSum
;
777 static int rtl8169_set_rx_csum(struct net_device
*dev
, u32 data
)
779 struct rtl8169_private
*tp
= netdev_priv(dev
);
780 void __iomem
*ioaddr
= tp
->mmio_addr
;
783 spin_lock_irqsave(&tp
->lock
, flags
);
786 tp
->cp_cmd
|= RxChkSum
;
788 tp
->cp_cmd
&= ~RxChkSum
;
790 RTL_W16(CPlusCmd
, tp
->cp_cmd
);
793 spin_unlock_irqrestore(&tp
->lock
, flags
);
798 #ifdef CONFIG_R8169_VLAN
800 static inline u32
rtl8169_tx_vlan_tag(struct rtl8169_private
*tp
,
803 return (tp
->vlgrp
&& vlan_tx_tag_present(skb
)) ?
804 TxVlanTag
| swab16(vlan_tx_tag_get(skb
)) : 0x00;
807 static void rtl8169_vlan_rx_register(struct net_device
*dev
,
808 struct vlan_group
*grp
)
810 struct rtl8169_private
*tp
= netdev_priv(dev
);
811 void __iomem
*ioaddr
= tp
->mmio_addr
;
814 spin_lock_irqsave(&tp
->lock
, flags
);
817 tp
->cp_cmd
|= RxVlan
;
819 tp
->cp_cmd
&= ~RxVlan
;
820 RTL_W16(CPlusCmd
, tp
->cp_cmd
);
822 spin_unlock_irqrestore(&tp
->lock
, flags
);
825 static int rtl8169_rx_vlan_skb(struct rtl8169_private
*tp
, struct RxDesc
*desc
,
828 u32 opts2
= le32_to_cpu(desc
->opts2
);
831 if (tp
->vlgrp
&& (opts2
& RxVlanTag
)) {
832 rtl8169_rx_hwaccel_skb(skb
, tp
->vlgrp
, swab16(opts2
& 0xffff));
840 #else /* !CONFIG_R8169_VLAN */
842 static inline u32
rtl8169_tx_vlan_tag(struct rtl8169_private
*tp
,
848 static int rtl8169_rx_vlan_skb(struct rtl8169_private
*tp
, struct RxDesc
*desc
,
856 static void rtl8169_gset_tbi(struct net_device
*dev
, struct ethtool_cmd
*cmd
)
858 struct rtl8169_private
*tp
= netdev_priv(dev
);
859 void __iomem
*ioaddr
= tp
->mmio_addr
;
863 SUPPORTED_1000baseT_Full
| SUPPORTED_Autoneg
| SUPPORTED_FIBRE
;
864 cmd
->port
= PORT_FIBRE
;
865 cmd
->transceiver
= XCVR_INTERNAL
;
867 status
= RTL_R32(TBICSR
);
868 cmd
->advertising
= (status
& TBINwEnable
) ? ADVERTISED_Autoneg
: 0;
869 cmd
->autoneg
= !!(status
& TBINwEnable
);
871 cmd
->speed
= SPEED_1000
;
872 cmd
->duplex
= DUPLEX_FULL
; /* Always set */
875 static void rtl8169_gset_xmii(struct net_device
*dev
, struct ethtool_cmd
*cmd
)
877 struct rtl8169_private
*tp
= netdev_priv(dev
);
878 void __iomem
*ioaddr
= tp
->mmio_addr
;
881 cmd
->supported
= SUPPORTED_10baseT_Half
|
882 SUPPORTED_10baseT_Full
|
883 SUPPORTED_100baseT_Half
|
884 SUPPORTED_100baseT_Full
|
885 SUPPORTED_1000baseT_Full
|
890 cmd
->advertising
= ADVERTISED_TP
| ADVERTISED_Autoneg
;
892 if (tp
->phy_auto_nego_reg
& ADVERTISE_10HALF
)
893 cmd
->advertising
|= ADVERTISED_10baseT_Half
;
894 if (tp
->phy_auto_nego_reg
& ADVERTISE_10FULL
)
895 cmd
->advertising
|= ADVERTISED_10baseT_Full
;
896 if (tp
->phy_auto_nego_reg
& ADVERTISE_100HALF
)
897 cmd
->advertising
|= ADVERTISED_100baseT_Half
;
898 if (tp
->phy_auto_nego_reg
& ADVERTISE_100FULL
)
899 cmd
->advertising
|= ADVERTISED_100baseT_Full
;
900 if (tp
->phy_1000_ctrl_reg
& ADVERTISE_1000FULL
)
901 cmd
->advertising
|= ADVERTISED_1000baseT_Full
;
903 status
= RTL_R8(PHYstatus
);
905 if (status
& _1000bpsF
)
906 cmd
->speed
= SPEED_1000
;
907 else if (status
& _100bps
)
908 cmd
->speed
= SPEED_100
;
909 else if (status
& _10bps
)
910 cmd
->speed
= SPEED_10
;
912 if (status
& TxFlowCtrl
)
913 cmd
->advertising
|= ADVERTISED_Asym_Pause
;
914 if (status
& RxFlowCtrl
)
915 cmd
->advertising
|= ADVERTISED_Pause
;
917 cmd
->duplex
= ((status
& _1000bpsF
) || (status
& FullDup
)) ?
918 DUPLEX_FULL
: DUPLEX_HALF
;
921 static int rtl8169_get_settings(struct net_device
*dev
, struct ethtool_cmd
*cmd
)
923 struct rtl8169_private
*tp
= netdev_priv(dev
);
926 spin_lock_irqsave(&tp
->lock
, flags
);
928 tp
->get_settings(dev
, cmd
);
930 spin_unlock_irqrestore(&tp
->lock
, flags
);
934 static void rtl8169_get_regs(struct net_device
*dev
, struct ethtool_regs
*regs
,
937 struct rtl8169_private
*tp
= netdev_priv(dev
);
940 if (regs
->len
> R8169_REGS_SIZE
)
941 regs
->len
= R8169_REGS_SIZE
;
943 spin_lock_irqsave(&tp
->lock
, flags
);
944 memcpy_fromio(p
, tp
->mmio_addr
, regs
->len
);
945 spin_unlock_irqrestore(&tp
->lock
, flags
);
948 static u32
rtl8169_get_msglevel(struct net_device
*dev
)
950 struct rtl8169_private
*tp
= netdev_priv(dev
);
952 return tp
->msg_enable
;
955 static void rtl8169_set_msglevel(struct net_device
*dev
, u32 value
)
957 struct rtl8169_private
*tp
= netdev_priv(dev
);
959 tp
->msg_enable
= value
;
962 static const char rtl8169_gstrings
[][ETH_GSTRING_LEN
] = {
969 "tx_single_collisions",
970 "tx_multi_collisions",
978 struct rtl8169_counters
{
985 u32 tx_one_collision
;
986 u32 tx_multi_collision
;
994 static int rtl8169_get_stats_count(struct net_device
*dev
)
996 return ARRAY_SIZE(rtl8169_gstrings
);
999 static void rtl8169_get_ethtool_stats(struct net_device
*dev
,
1000 struct ethtool_stats
*stats
, u64
*data
)
1002 struct rtl8169_private
*tp
= netdev_priv(dev
);
1003 void __iomem
*ioaddr
= tp
->mmio_addr
;
1004 struct rtl8169_counters
*counters
;
1010 counters
= pci_alloc_consistent(tp
->pci_dev
, sizeof(*counters
), &paddr
);
1014 RTL_W32(CounterAddrHigh
, (u64
)paddr
>> 32);
1015 cmd
= (u64
)paddr
& DMA_32BIT_MASK
;
1016 RTL_W32(CounterAddrLow
, cmd
);
1017 RTL_W32(CounterAddrLow
, cmd
| CounterDump
);
1019 while (RTL_R32(CounterAddrLow
) & CounterDump
) {
1020 if (msleep_interruptible(1))
1024 RTL_W32(CounterAddrLow
, 0);
1025 RTL_W32(CounterAddrHigh
, 0);
1027 data
[0] = le64_to_cpu(counters
->tx_packets
);
1028 data
[1] = le64_to_cpu(counters
->rx_packets
);
1029 data
[2] = le64_to_cpu(counters
->tx_errors
);
1030 data
[3] = le32_to_cpu(counters
->rx_errors
);
1031 data
[4] = le16_to_cpu(counters
->rx_missed
);
1032 data
[5] = le16_to_cpu(counters
->align_errors
);
1033 data
[6] = le32_to_cpu(counters
->tx_one_collision
);
1034 data
[7] = le32_to_cpu(counters
->tx_multi_collision
);
1035 data
[8] = le64_to_cpu(counters
->rx_unicast
);
1036 data
[9] = le64_to_cpu(counters
->rx_broadcast
);
1037 data
[10] = le32_to_cpu(counters
->rx_multicast
);
1038 data
[11] = le16_to_cpu(counters
->tx_aborted
);
1039 data
[12] = le16_to_cpu(counters
->tx_underun
);
1041 pci_free_consistent(tp
->pci_dev
, sizeof(*counters
), counters
, paddr
);
1044 static void rtl8169_get_strings(struct net_device
*dev
, u32 stringset
, u8
*data
)
1048 memcpy(data
, *rtl8169_gstrings
, sizeof(rtl8169_gstrings
));
1053 static const struct ethtool_ops rtl8169_ethtool_ops
= {
1054 .get_drvinfo
= rtl8169_get_drvinfo
,
1055 .get_regs_len
= rtl8169_get_regs_len
,
1056 .get_link
= ethtool_op_get_link
,
1057 .get_settings
= rtl8169_get_settings
,
1058 .set_settings
= rtl8169_set_settings
,
1059 .get_msglevel
= rtl8169_get_msglevel
,
1060 .set_msglevel
= rtl8169_set_msglevel
,
1061 .get_rx_csum
= rtl8169_get_rx_csum
,
1062 .set_rx_csum
= rtl8169_set_rx_csum
,
1063 .get_tx_csum
= ethtool_op_get_tx_csum
,
1064 .set_tx_csum
= ethtool_op_set_tx_csum
,
1065 .get_sg
= ethtool_op_get_sg
,
1066 .set_sg
= ethtool_op_set_sg
,
1067 .get_tso
= ethtool_op_get_tso
,
1068 .set_tso
= ethtool_op_set_tso
,
1069 .get_regs
= rtl8169_get_regs
,
1070 .get_wol
= rtl8169_get_wol
,
1071 .set_wol
= rtl8169_set_wol
,
1072 .get_strings
= rtl8169_get_strings
,
1073 .get_stats_count
= rtl8169_get_stats_count
,
1074 .get_ethtool_stats
= rtl8169_get_ethtool_stats
,
1077 static void rtl8169_write_gmii_reg_bit(void __iomem
*ioaddr
, int reg
,
1078 int bitnum
, int bitval
)
1082 val
= mdio_read(ioaddr
, reg
);
1083 val
= (bitval
== 1) ?
1084 val
| (bitval
<< bitnum
) : val
& ~(0x0001 << bitnum
);
1085 mdio_write(ioaddr
, reg
, val
& 0xffff);
1088 static void rtl8169_get_mac_version(struct rtl8169_private
*tp
,
1089 void __iomem
*ioaddr
)
1092 * The driver currently handles the 8168Bf and the 8168Be identically
1093 * but they can be identified more specifically through the test below
1096 * (RTL_R32(TxConfig) & 0x700000) == 0x500000 ? 8168Bf : 8168Be
1098 * Same thing for the 8101Eb and the 8101Ec:
1100 * (RTL_R32(TxConfig) & 0x700000) == 0x200000 ? 8101Eb : 8101Ec
1106 { 0x38800000, RTL_GIGA_MAC_VER_15
},
1107 { 0x38000000, RTL_GIGA_MAC_VER_12
},
1108 { 0x34000000, RTL_GIGA_MAC_VER_13
},
1109 { 0x30800000, RTL_GIGA_MAC_VER_14
},
1110 { 0x30000000, RTL_GIGA_MAC_VER_11
},
1111 { 0x98000000, RTL_GIGA_MAC_VER_06
},
1112 { 0x18000000, RTL_GIGA_MAC_VER_05
},
1113 { 0x10000000, RTL_GIGA_MAC_VER_04
},
1114 { 0x04000000, RTL_GIGA_MAC_VER_03
},
1115 { 0x00800000, RTL_GIGA_MAC_VER_02
},
1116 { 0x00000000, RTL_GIGA_MAC_VER_01
} /* Catch-all */
1120 reg
= RTL_R32(TxConfig
) & 0xfc800000;
1121 while ((reg
& p
->mask
) != p
->mask
)
1123 tp
->mac_version
= p
->mac_version
;
1126 static void rtl8169_print_mac_version(struct rtl8169_private
*tp
)
1128 dprintk("mac_version = 0x%02x\n", tp
->mac_version
);
1131 static void rtl8169_get_phy_version(struct rtl8169_private
*tp
,
1132 void __iomem
*ioaddr
)
1139 { 0x000f, 0x0002, RTL_GIGA_PHY_VER_G
},
1140 { 0x000f, 0x0001, RTL_GIGA_PHY_VER_F
},
1141 { 0x000f, 0x0000, RTL_GIGA_PHY_VER_E
},
1142 { 0x0000, 0x0000, RTL_GIGA_PHY_VER_D
} /* Catch-all */
1146 reg
= mdio_read(ioaddr
, MII_PHYSID2
) & 0xffff;
1147 while ((reg
& p
->mask
) != p
->set
)
1149 tp
->phy_version
= p
->phy_version
;
1152 static void rtl8169_print_phy_version(struct rtl8169_private
*tp
)
1159 { RTL_GIGA_PHY_VER_G
, "RTL_GIGA_PHY_VER_G", 0x0002 },
1160 { RTL_GIGA_PHY_VER_F
, "RTL_GIGA_PHY_VER_F", 0x0001 },
1161 { RTL_GIGA_PHY_VER_E
, "RTL_GIGA_PHY_VER_E", 0x0000 },
1162 { RTL_GIGA_PHY_VER_D
, "RTL_GIGA_PHY_VER_D", 0x0000 },
1166 for (p
= phy_print
; p
->msg
; p
++) {
1167 if (tp
->phy_version
== p
->version
) {
1168 dprintk("phy_version == %s (%04x)\n", p
->msg
, p
->reg
);
1172 dprintk("phy_version == Unknown\n");
1175 static void rtl8169_hw_phy_config(struct net_device
*dev
)
1177 struct rtl8169_private
*tp
= netdev_priv(dev
);
1178 void __iomem
*ioaddr
= tp
->mmio_addr
;
1180 u16 regs
[5]; /* Beware of bit-sign propagation */
1181 } phy_magic
[5] = { {
1182 { 0x0000, //w 4 15 12 0
1183 0x00a1, //w 3 15 0 00a1
1184 0x0008, //w 2 15 0 0008
1185 0x1020, //w 1 15 0 1020
1186 0x1000 } },{ //w 0 15 0 1000
1187 { 0x7000, //w 4 15 12 7
1188 0xff41, //w 3 15 0 ff41
1189 0xde60, //w 2 15 0 de60
1190 0x0140, //w 1 15 0 0140
1191 0x0077 } },{ //w 0 15 0 0077
1192 { 0xa000, //w 4 15 12 a
1193 0xdf01, //w 3 15 0 df01
1194 0xdf20, //w 2 15 0 df20
1195 0xff95, //w 1 15 0 ff95
1196 0xfa00 } },{ //w 0 15 0 fa00
1197 { 0xb000, //w 4 15 12 b
1198 0xff41, //w 3 15 0 ff41
1199 0xde20, //w 2 15 0 de20
1200 0x0140, //w 1 15 0 0140
1201 0x00bb } },{ //w 0 15 0 00bb
1202 { 0xf000, //w 4 15 12 f
1203 0xdf01, //w 3 15 0 df01
1204 0xdf20, //w 2 15 0 df20
1205 0xff95, //w 1 15 0 ff95
1206 0xbf00 } //w 0 15 0 bf00
1211 rtl8169_print_mac_version(tp
);
1212 rtl8169_print_phy_version(tp
);
1214 if (tp
->mac_version
<= RTL_GIGA_MAC_VER_01
)
1216 if (tp
->phy_version
>= RTL_GIGA_PHY_VER_H
)
1219 dprintk("MAC version != 0 && PHY version == 0 or 1\n");
1220 dprintk("Do final_reg2.cfg\n");
1224 if (tp
->mac_version
== RTL_GIGA_MAC_VER_04
) {
1225 mdio_write(ioaddr
, 31, 0x0002);
1226 mdio_write(ioaddr
, 1, 0x90d0);
1227 mdio_write(ioaddr
, 31, 0x0000);
1231 if ((tp
->mac_version
!= RTL_GIGA_MAC_VER_02
) &&
1232 (tp
->mac_version
!= RTL_GIGA_MAC_VER_03
))
1235 mdio_write(ioaddr
, 31, 0x0001); //w 31 2 0 1
1236 mdio_write(ioaddr
, 21, 0x1000); //w 21 15 0 1000
1237 mdio_write(ioaddr
, 24, 0x65c7); //w 24 15 0 65c7
1238 rtl8169_write_gmii_reg_bit(ioaddr
, 4, 11, 0); //w 4 11 11 0
1240 for (i
= 0; i
< ARRAY_SIZE(phy_magic
); i
++, p
++) {
1243 val
= (mdio_read(ioaddr
, pos
) & 0x0fff) | (p
->regs
[0] & 0xffff);
1244 mdio_write(ioaddr
, pos
, val
);
1246 mdio_write(ioaddr
, pos
, p
->regs
[4 - pos
] & 0xffff);
1247 rtl8169_write_gmii_reg_bit(ioaddr
, 4, 11, 1); //w 4 11 11 1
1248 rtl8169_write_gmii_reg_bit(ioaddr
, 4, 11, 0); //w 4 11 11 0
1250 mdio_write(ioaddr
, 31, 0x0000); //w 31 2 0 0
1253 static void rtl8169_phy_timer(unsigned long __opaque
)
1255 struct net_device
*dev
= (struct net_device
*)__opaque
;
1256 struct rtl8169_private
*tp
= netdev_priv(dev
);
1257 struct timer_list
*timer
= &tp
->timer
;
1258 void __iomem
*ioaddr
= tp
->mmio_addr
;
1259 unsigned long timeout
= RTL8169_PHY_TIMEOUT
;
1261 assert(tp
->mac_version
> RTL_GIGA_MAC_VER_01
);
1262 assert(tp
->phy_version
< RTL_GIGA_PHY_VER_H
);
1264 if (!(tp
->phy_1000_ctrl_reg
& ADVERTISE_1000FULL
))
1267 spin_lock_irq(&tp
->lock
);
1269 if (tp
->phy_reset_pending(ioaddr
)) {
1271 * A busy loop could burn quite a few cycles on nowadays CPU.
1272 * Let's delay the execution of the timer for a few ticks.
1278 if (tp
->link_ok(ioaddr
))
1281 if (netif_msg_link(tp
))
1282 printk(KERN_WARNING
"%s: PHY reset until link up\n", dev
->name
);
1284 tp
->phy_reset_enable(ioaddr
);
1287 mod_timer(timer
, jiffies
+ timeout
);
1289 spin_unlock_irq(&tp
->lock
);
1292 static inline void rtl8169_delete_timer(struct net_device
*dev
)
1294 struct rtl8169_private
*tp
= netdev_priv(dev
);
1295 struct timer_list
*timer
= &tp
->timer
;
1297 if ((tp
->mac_version
<= RTL_GIGA_MAC_VER_01
) ||
1298 (tp
->phy_version
>= RTL_GIGA_PHY_VER_H
))
1301 del_timer_sync(timer
);
1304 static inline void rtl8169_request_timer(struct net_device
*dev
)
1306 struct rtl8169_private
*tp
= netdev_priv(dev
);
1307 struct timer_list
*timer
= &tp
->timer
;
1309 if ((tp
->mac_version
<= RTL_GIGA_MAC_VER_01
) ||
1310 (tp
->phy_version
>= RTL_GIGA_PHY_VER_H
))
1313 mod_timer(timer
, jiffies
+ RTL8169_PHY_TIMEOUT
);
1316 #ifdef CONFIG_NET_POLL_CONTROLLER
1318 * Polling 'interrupt' - used by things like netconsole to send skbs
1319 * without having to re-enable interrupts. It's not called while
1320 * the interrupt routine is executing.
1322 static void rtl8169_netpoll(struct net_device
*dev
)
1324 struct rtl8169_private
*tp
= netdev_priv(dev
);
1325 struct pci_dev
*pdev
= tp
->pci_dev
;
1327 disable_irq(pdev
->irq
);
1328 rtl8169_interrupt(pdev
->irq
, dev
);
1329 enable_irq(pdev
->irq
);
1333 static void rtl8169_release_board(struct pci_dev
*pdev
, struct net_device
*dev
,
1334 void __iomem
*ioaddr
)
1337 pci_release_regions(pdev
);
1338 pci_disable_device(pdev
);
1342 static void rtl8169_phy_reset(struct net_device
*dev
,
1343 struct rtl8169_private
*tp
)
1345 void __iomem
*ioaddr
= tp
->mmio_addr
;
1348 tp
->phy_reset_enable(ioaddr
);
1349 for (i
= 0; i
< 100; i
++) {
1350 if (!tp
->phy_reset_pending(ioaddr
))
1354 if (netif_msg_link(tp
))
1355 printk(KERN_ERR
"%s: PHY reset failed.\n", dev
->name
);
1358 static void rtl8169_init_phy(struct net_device
*dev
, struct rtl8169_private
*tp
)
1360 void __iomem
*ioaddr
= tp
->mmio_addr
;
1362 rtl8169_hw_phy_config(dev
);
1364 dprintk("Set MAC Reg C+CR Offset 0x82h = 0x01h\n");
1367 pci_write_config_byte(tp
->pci_dev
, PCI_LATENCY_TIMER
, 0x40);
1369 if (tp
->mac_version
<= RTL_GIGA_MAC_VER_06
)
1370 pci_write_config_byte(tp
->pci_dev
, PCI_CACHE_LINE_SIZE
, 0x08);
1372 if (tp
->mac_version
== RTL_GIGA_MAC_VER_02
) {
1373 dprintk("Set MAC Reg C+CR Offset 0x82h = 0x01h\n");
1375 dprintk("Set PHY Reg 0x0bh = 0x00h\n");
1376 mdio_write(ioaddr
, 0x0b, 0x0000); //w 0x0b 15 0 0
1379 rtl8169_phy_reset(dev
, tp
);
1382 * rtl8169_set_speed_xmii takes good care of the Fast Ethernet
1383 * only 8101. Don't panic.
1385 rtl8169_set_speed(dev
, AUTONEG_ENABLE
, SPEED_1000
, DUPLEX_FULL
);
1387 if ((RTL_R8(PHYstatus
) & TBI_Enable
) && netif_msg_link(tp
))
1388 printk(KERN_INFO PFX
"%s: TBI auto-negotiating\n", dev
->name
);
1391 static void rtl_rar_set(struct rtl8169_private
*tp
, u8
*addr
)
1393 void __iomem
*ioaddr
= tp
->mmio_addr
;
1397 low
= addr
[0] | (addr
[1] << 8) | (addr
[2] << 16) | (addr
[3] << 24);
1398 high
= addr
[4] | (addr
[5] << 8);
1400 spin_lock_irq(&tp
->lock
);
1402 RTL_W8(Cfg9346
, Cfg9346_Unlock
);
1404 RTL_W32(MAC4
, high
);
1405 RTL_W8(Cfg9346
, Cfg9346_Lock
);
1407 spin_unlock_irq(&tp
->lock
);
1410 static int rtl_set_mac_address(struct net_device
*dev
, void *p
)
1412 struct rtl8169_private
*tp
= netdev_priv(dev
);
1413 struct sockaddr
*addr
= p
;
1415 if (!is_valid_ether_addr(addr
->sa_data
))
1416 return -EADDRNOTAVAIL
;
1418 memcpy(dev
->dev_addr
, addr
->sa_data
, dev
->addr_len
);
1420 rtl_rar_set(tp
, dev
->dev_addr
);
1425 static int rtl8169_ioctl(struct net_device
*dev
, struct ifreq
*ifr
, int cmd
)
1427 struct rtl8169_private
*tp
= netdev_priv(dev
);
1428 struct mii_ioctl_data
*data
= if_mii(ifr
);
1430 if (!netif_running(dev
))
1435 data
->phy_id
= 32; /* Internal PHY */
1439 data
->val_out
= mdio_read(tp
->mmio_addr
, data
->reg_num
& 0x1f);
1443 if (!capable(CAP_NET_ADMIN
))
1445 mdio_write(tp
->mmio_addr
, data
->reg_num
& 0x1f, data
->val_in
);
1451 static const struct rtl_cfg_info
{
1452 void (*hw_start
)(struct net_device
*);
1453 unsigned int region
;
1457 } rtl_cfg_infos
[] = {
1459 .hw_start
= rtl_hw_start_8169
,
1462 .intr_event
= SYSErr
| LinkChg
| RxOverflow
|
1463 RxFIFOOver
| TxErr
| TxOK
| RxOK
| RxErr
,
1464 .napi_event
= RxFIFOOver
| TxErr
| TxOK
| RxOK
| RxOverflow
1467 .hw_start
= rtl_hw_start_8168
,
1470 .intr_event
= SYSErr
| LinkChg
| RxOverflow
|
1471 TxErr
| TxOK
| RxOK
| RxErr
,
1472 .napi_event
= TxErr
| TxOK
| RxOK
| RxOverflow
1475 .hw_start
= rtl_hw_start_8101
,
1478 .intr_event
= SYSErr
| LinkChg
| RxOverflow
| PCSTimeout
|
1479 RxFIFOOver
| TxErr
| TxOK
| RxOK
| RxErr
,
1480 .napi_event
= RxFIFOOver
| TxErr
| TxOK
| RxOK
| RxOverflow
1484 static int __devinit
1485 rtl8169_init_one(struct pci_dev
*pdev
, const struct pci_device_id
*ent
)
1487 const struct rtl_cfg_info
*cfg
= rtl_cfg_infos
+ ent
->driver_data
;
1488 const unsigned int region
= cfg
->region
;
1489 struct rtl8169_private
*tp
;
1490 struct net_device
*dev
;
1491 void __iomem
*ioaddr
;
1495 if (netif_msg_drv(&debug
)) {
1496 printk(KERN_INFO
"%s Gigabit Ethernet driver %s loaded\n",
1497 MODULENAME
, RTL8169_VERSION
);
1500 dev
= alloc_etherdev(sizeof (*tp
));
1502 if (netif_msg_drv(&debug
))
1503 dev_err(&pdev
->dev
, "unable to alloc new ethernet\n");
1508 SET_MODULE_OWNER(dev
);
1509 SET_NETDEV_DEV(dev
, &pdev
->dev
);
1510 tp
= netdev_priv(dev
);
1512 tp
->msg_enable
= netif_msg_init(debug
.msg_enable
, R8169_MSG_DEFAULT
);
1514 /* enable device (incl. PCI PM wakeup and hotplug setup) */
1515 rc
= pci_enable_device(pdev
);
1517 if (netif_msg_probe(tp
))
1518 dev_err(&pdev
->dev
, "enable failure\n");
1519 goto err_out_free_dev_1
;
1522 rc
= pci_set_mwi(pdev
);
1524 goto err_out_disable_2
;
1526 /* make sure PCI base addr 1 is MMIO */
1527 if (!(pci_resource_flags(pdev
, region
) & IORESOURCE_MEM
)) {
1528 if (netif_msg_probe(tp
)) {
1530 "region #%d not an MMIO resource, aborting\n",
1537 /* check for weird/broken PCI region reporting */
1538 if (pci_resource_len(pdev
, region
) < R8169_REGS_SIZE
) {
1539 if (netif_msg_probe(tp
)) {
1541 "Invalid PCI region size(s), aborting\n");
1547 rc
= pci_request_regions(pdev
, MODULENAME
);
1549 if (netif_msg_probe(tp
))
1550 dev_err(&pdev
->dev
, "could not request regions.\n");
1554 tp
->cp_cmd
= PCIMulRW
| RxChkSum
;
1556 if ((sizeof(dma_addr_t
) > 4) &&
1557 !pci_set_dma_mask(pdev
, DMA_64BIT_MASK
) && use_dac
) {
1558 tp
->cp_cmd
|= PCIDAC
;
1559 dev
->features
|= NETIF_F_HIGHDMA
;
1561 rc
= pci_set_dma_mask(pdev
, DMA_32BIT_MASK
);
1563 if (netif_msg_probe(tp
)) {
1565 "DMA configuration failed.\n");
1567 goto err_out_free_res_4
;
1571 pci_set_master(pdev
);
1573 /* ioremap MMIO region */
1574 ioaddr
= ioremap(pci_resource_start(pdev
, region
), R8169_REGS_SIZE
);
1576 if (netif_msg_probe(tp
))
1577 dev_err(&pdev
->dev
, "cannot remap MMIO, aborting\n");
1579 goto err_out_free_res_4
;
1582 /* Unneeded ? Don't mess with Mrs. Murphy. */
1583 rtl8169_irq_mask_and_ack(ioaddr
);
1585 /* Soft reset the chip. */
1586 RTL_W8(ChipCmd
, CmdReset
);
1588 /* Check that the chip has finished the reset. */
1589 for (i
= 0; i
< 100; i
++) {
1590 if ((RTL_R8(ChipCmd
) & CmdReset
) == 0)
1592 msleep_interruptible(1);
1595 /* Identify chip attached to board */
1596 rtl8169_get_mac_version(tp
, ioaddr
);
1597 rtl8169_get_phy_version(tp
, ioaddr
);
1599 rtl8169_print_mac_version(tp
);
1600 rtl8169_print_phy_version(tp
);
1602 for (i
= ARRAY_SIZE(rtl_chip_info
) - 1; i
>= 0; i
--) {
1603 if (tp
->mac_version
== rtl_chip_info
[i
].mac_version
)
1607 /* Unknown chip: assume array element #0, original RTL-8169 */
1608 if (netif_msg_probe(tp
)) {
1609 dev_printk(KERN_DEBUG
, &pdev
->dev
,
1610 "unknown chip version, assuming %s\n",
1611 rtl_chip_info
[0].name
);
1617 RTL_W8(Cfg9346
, Cfg9346_Unlock
);
1618 RTL_W8(Config1
, RTL_R8(Config1
) | PMEnable
);
1619 RTL_W8(Config5
, RTL_R8(Config5
) & PMEStatus
);
1620 RTL_W8(Cfg9346
, Cfg9346_Lock
);
1622 if (RTL_R8(PHYstatus
) & TBI_Enable
) {
1623 tp
->set_speed
= rtl8169_set_speed_tbi
;
1624 tp
->get_settings
= rtl8169_gset_tbi
;
1625 tp
->phy_reset_enable
= rtl8169_tbi_reset_enable
;
1626 tp
->phy_reset_pending
= rtl8169_tbi_reset_pending
;
1627 tp
->link_ok
= rtl8169_tbi_link_ok
;
1629 tp
->phy_1000_ctrl_reg
= ADVERTISE_1000FULL
; /* Implied by TBI */
1631 tp
->set_speed
= rtl8169_set_speed_xmii
;
1632 tp
->get_settings
= rtl8169_gset_xmii
;
1633 tp
->phy_reset_enable
= rtl8169_xmii_reset_enable
;
1634 tp
->phy_reset_pending
= rtl8169_xmii_reset_pending
;
1635 tp
->link_ok
= rtl8169_xmii_link_ok
;
1637 dev
->do_ioctl
= rtl8169_ioctl
;
1640 /* Get MAC address. FIXME: read EEPROM */
1641 for (i
= 0; i
< MAC_ADDR_LEN
; i
++)
1642 dev
->dev_addr
[i
] = RTL_R8(MAC0
+ i
);
1643 memcpy(dev
->perm_addr
, dev
->dev_addr
, dev
->addr_len
);
1645 dev
->open
= rtl8169_open
;
1646 dev
->hard_start_xmit
= rtl8169_start_xmit
;
1647 dev
->get_stats
= rtl8169_get_stats
;
1648 SET_ETHTOOL_OPS(dev
, &rtl8169_ethtool_ops
);
1649 dev
->stop
= rtl8169_close
;
1650 dev
->tx_timeout
= rtl8169_tx_timeout
;
1651 dev
->set_multicast_list
= rtl_set_rx_mode
;
1652 dev
->watchdog_timeo
= RTL8169_TX_TIMEOUT
;
1653 dev
->irq
= pdev
->irq
;
1654 dev
->base_addr
= (unsigned long) ioaddr
;
1655 dev
->change_mtu
= rtl8169_change_mtu
;
1656 dev
->set_mac_address
= rtl_set_mac_address
;
1658 #ifdef CONFIG_R8169_NAPI
1659 dev
->poll
= rtl8169_poll
;
1660 dev
->weight
= R8169_NAPI_WEIGHT
;
1663 #ifdef CONFIG_R8169_VLAN
1664 dev
->features
|= NETIF_F_HW_VLAN_TX
| NETIF_F_HW_VLAN_RX
;
1665 dev
->vlan_rx_register
= rtl8169_vlan_rx_register
;
1668 #ifdef CONFIG_NET_POLL_CONTROLLER
1669 dev
->poll_controller
= rtl8169_netpoll
;
1672 tp
->intr_mask
= 0xffff;
1674 tp
->mmio_addr
= ioaddr
;
1675 tp
->align
= cfg
->align
;
1676 tp
->hw_start
= cfg
->hw_start
;
1677 tp
->intr_event
= cfg
->intr_event
;
1678 tp
->napi_event
= cfg
->napi_event
;
1680 init_timer(&tp
->timer
);
1681 tp
->timer
.data
= (unsigned long) dev
;
1682 tp
->timer
.function
= rtl8169_phy_timer
;
1684 spin_lock_init(&tp
->lock
);
1686 rc
= register_netdev(dev
);
1688 goto err_out_unmap_5
;
1690 pci_set_drvdata(pdev
, dev
);
1692 if (netif_msg_probe(tp
)) {
1693 u32 xid
= RTL_R32(TxConfig
) & 0x7cf0f8ff;
1695 printk(KERN_INFO
"%s: %s at 0x%lx, "
1696 "%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x, "
1697 "XID %08x IRQ %d\n",
1699 rtl_chip_info
[tp
->chipset
].name
,
1701 dev
->dev_addr
[0], dev
->dev_addr
[1],
1702 dev
->dev_addr
[2], dev
->dev_addr
[3],
1703 dev
->dev_addr
[4], dev
->dev_addr
[5], xid
, dev
->irq
);
1706 rtl8169_init_phy(dev
, tp
);
1714 pci_release_regions(pdev
);
1716 pci_clear_mwi(pdev
);
1718 pci_disable_device(pdev
);
1724 static void __devexit
rtl8169_remove_one(struct pci_dev
*pdev
)
1726 struct net_device
*dev
= pci_get_drvdata(pdev
);
1727 struct rtl8169_private
*tp
= netdev_priv(dev
);
1729 flush_scheduled_work();
1731 unregister_netdev(dev
);
1732 rtl8169_release_board(pdev
, dev
, tp
->mmio_addr
);
1733 pci_set_drvdata(pdev
, NULL
);
1736 static void rtl8169_set_rxbufsize(struct rtl8169_private
*tp
,
1737 struct net_device
*dev
)
1739 unsigned int mtu
= dev
->mtu
;
1741 tp
->rx_buf_sz
= (mtu
> RX_BUF_SIZE
) ? mtu
+ ETH_HLEN
+ 8 : RX_BUF_SIZE
;
1744 static int rtl8169_open(struct net_device
*dev
)
1746 struct rtl8169_private
*tp
= netdev_priv(dev
);
1747 struct pci_dev
*pdev
= tp
->pci_dev
;
1748 int retval
= -ENOMEM
;
1751 rtl8169_set_rxbufsize(tp
, dev
);
1754 * Rx and Tx desscriptors needs 256 bytes alignment.
1755 * pci_alloc_consistent provides more.
1757 tp
->TxDescArray
= pci_alloc_consistent(pdev
, R8169_TX_RING_BYTES
,
1759 if (!tp
->TxDescArray
)
1762 tp
->RxDescArray
= pci_alloc_consistent(pdev
, R8169_RX_RING_BYTES
,
1764 if (!tp
->RxDescArray
)
1767 retval
= rtl8169_init_ring(dev
);
1771 INIT_DELAYED_WORK(&tp
->task
, NULL
);
1775 retval
= request_irq(dev
->irq
, rtl8169_interrupt
, IRQF_SHARED
,
1778 goto err_release_ring_2
;
1782 rtl8169_request_timer(dev
);
1784 rtl8169_check_link_status(dev
, tp
, tp
->mmio_addr
);
1789 rtl8169_rx_clear(tp
);
1791 pci_free_consistent(pdev
, R8169_RX_RING_BYTES
, tp
->RxDescArray
,
1794 pci_free_consistent(pdev
, R8169_TX_RING_BYTES
, tp
->TxDescArray
,
1799 static void rtl8169_hw_reset(void __iomem
*ioaddr
)
1801 /* Disable interrupts */
1802 rtl8169_irq_mask_and_ack(ioaddr
);
1804 /* Reset the chipset */
1805 RTL_W8(ChipCmd
, CmdReset
);
1811 static void rtl_set_rx_tx_config_registers(struct rtl8169_private
*tp
)
1813 void __iomem
*ioaddr
= tp
->mmio_addr
;
1814 u32 cfg
= rtl8169_rx_config
;
1816 cfg
|= (RTL_R32(RxConfig
) & rtl_chip_info
[tp
->chipset
].RxConfigMask
);
1817 RTL_W32(RxConfig
, cfg
);
1819 /* Set DMA burst size and Interframe Gap Time */
1820 RTL_W32(TxConfig
, (TX_DMA_BURST
<< TxDMAShift
) |
1821 (InterFrameGap
<< TxInterFrameGapShift
));
1824 static void rtl_hw_start(struct net_device
*dev
)
1826 struct rtl8169_private
*tp
= netdev_priv(dev
);
1827 void __iomem
*ioaddr
= tp
->mmio_addr
;
1830 /* Soft reset the chip. */
1831 RTL_W8(ChipCmd
, CmdReset
);
1833 /* Check that the chip has finished the reset. */
1834 for (i
= 0; i
< 100; i
++) {
1835 if ((RTL_R8(ChipCmd
) & CmdReset
) == 0)
1837 msleep_interruptible(1);
1842 netif_start_queue(dev
);
1846 static void rtl_set_rx_tx_desc_registers(struct rtl8169_private
*tp
,
1847 void __iomem
*ioaddr
)
1850 * Magic spell: some iop3xx ARM board needs the TxDescAddrHigh
1851 * register to be written before TxDescAddrLow to work.
1852 * Switching from MMIO to I/O access fixes the issue as well.
1854 RTL_W32(TxDescStartAddrHigh
, ((u64
) tp
->TxPhyAddr
) >> 32);
1855 RTL_W32(TxDescStartAddrLow
, ((u64
) tp
->TxPhyAddr
) & DMA_32BIT_MASK
);
1856 RTL_W32(RxDescAddrHigh
, ((u64
) tp
->RxPhyAddr
) >> 32);
1857 RTL_W32(RxDescAddrLow
, ((u64
) tp
->RxPhyAddr
) & DMA_32BIT_MASK
);
1860 static u16
rtl_rw_cpluscmd(void __iomem
*ioaddr
)
1864 cmd
= RTL_R16(CPlusCmd
);
1865 RTL_W16(CPlusCmd
, cmd
);
1869 static void rtl_set_rx_max_size(void __iomem
*ioaddr
)
1871 /* Low hurts. Let's disable the filtering. */
1872 RTL_W16(RxMaxSize
, 16383);
1875 static void rtl8169_set_magic_reg(void __iomem
*ioaddr
, unsigned mac_version
)
1882 { RTL_GIGA_MAC_VER_05
, PCI_Clock_33MHz
, 0x000fff00 }, // 8110SCd
1883 { RTL_GIGA_MAC_VER_05
, PCI_Clock_66MHz
, 0x000fffff },
1884 { RTL_GIGA_MAC_VER_06
, PCI_Clock_33MHz
, 0x00ffff00 }, // 8110SCe
1885 { RTL_GIGA_MAC_VER_06
, PCI_Clock_66MHz
, 0x00ffffff }
1890 clk
= RTL_R8(Config2
) & PCI_Clock_66MHz
;
1891 for (i
= 0; i
< ARRAY_SIZE(cfg2_info
); i
++) {
1892 if ((p
->mac_version
== mac_version
) && (p
->clk
== clk
)) {
1893 RTL_W32(0x7c, p
->val
);
1899 static void rtl_hw_start_8169(struct net_device
*dev
)
1901 struct rtl8169_private
*tp
= netdev_priv(dev
);
1902 void __iomem
*ioaddr
= tp
->mmio_addr
;
1903 struct pci_dev
*pdev
= tp
->pci_dev
;
1905 if (tp
->mac_version
== RTL_GIGA_MAC_VER_05
) {
1906 RTL_W16(CPlusCmd
, RTL_R16(CPlusCmd
) | PCIMulRW
);
1907 pci_write_config_byte(pdev
, PCI_CACHE_LINE_SIZE
, 0x08);
1910 RTL_W8(Cfg9346
, Cfg9346_Unlock
);
1911 if ((tp
->mac_version
== RTL_GIGA_MAC_VER_01
) ||
1912 (tp
->mac_version
== RTL_GIGA_MAC_VER_02
) ||
1913 (tp
->mac_version
== RTL_GIGA_MAC_VER_03
) ||
1914 (tp
->mac_version
== RTL_GIGA_MAC_VER_04
))
1915 RTL_W8(ChipCmd
, CmdTxEnb
| CmdRxEnb
);
1917 RTL_W8(EarlyTxThres
, EarlyTxThld
);
1919 rtl_set_rx_max_size(ioaddr
);
1921 rtl_set_rx_tx_config_registers(tp
);
1923 tp
->cp_cmd
|= rtl_rw_cpluscmd(ioaddr
) | PCIMulRW
;
1925 if ((tp
->mac_version
== RTL_GIGA_MAC_VER_02
) ||
1926 (tp
->mac_version
== RTL_GIGA_MAC_VER_03
)) {
1927 dprintk(KERN_INFO PFX
"Set MAC Reg C+CR Offset 0xE0. "
1928 "Bit-3 and bit-14 MUST be 1\n");
1929 tp
->cp_cmd
|= (1 << 14);
1932 RTL_W16(CPlusCmd
, tp
->cp_cmd
);
1934 rtl8169_set_magic_reg(ioaddr
, tp
->mac_version
);
1937 * Undocumented corner. Supposedly:
1938 * (TxTimer << 12) | (TxPackets << 8) | (RxTimer << 4) | RxPackets
1940 RTL_W16(IntrMitigate
, 0x0000);
1942 rtl_set_rx_tx_desc_registers(tp
, ioaddr
);
1944 RTL_W8(Cfg9346
, Cfg9346_Lock
);
1946 /* Initially a 10 us delay. Turned it into a PCI commit. - FR */
1949 RTL_W32(RxMissed
, 0);
1951 rtl_set_rx_mode(dev
);
1953 /* no early-rx interrupts */
1954 RTL_W16(MultiIntr
, RTL_R16(MultiIntr
) & 0xF000);
1956 /* Enable all known interrupts by setting the interrupt mask. */
1957 RTL_W16(IntrMask
, tp
->intr_event
);
1959 RTL_W8(ChipCmd
, CmdTxEnb
| CmdRxEnb
);
1962 static void rtl_hw_start_8168(struct net_device
*dev
)
1964 struct rtl8169_private
*tp
= netdev_priv(dev
);
1965 void __iomem
*ioaddr
= tp
->mmio_addr
;
1966 struct pci_dev
*pdev
= tp
->pci_dev
;
1969 RTL_W8(Cfg9346
, Cfg9346_Unlock
);
1971 RTL_W8(EarlyTxThres
, EarlyTxThld
);
1973 rtl_set_rx_max_size(ioaddr
);
1975 rtl_set_rx_tx_config_registers(tp
);
1977 tp
->cp_cmd
|= RTL_R16(CPlusCmd
) | PktCntrDisable
| INTT_1
;
1979 RTL_W16(CPlusCmd
, tp
->cp_cmd
);
1981 /* Tx performance tweak. */
1982 pci_read_config_byte(pdev
, 0x69, &ctl
);
1983 ctl
= (ctl
& ~0x70) | 0x50;
1984 pci_write_config_byte(pdev
, 0x69, ctl
);
1986 RTL_W16(IntrMitigate
, 0x5151);
1988 /* Work around for RxFIFO overflow. */
1989 if (tp
->mac_version
== RTL_GIGA_MAC_VER_11
) {
1990 tp
->intr_event
|= RxFIFOOver
| PCSTimeout
;
1991 tp
->intr_event
&= ~RxOverflow
;
1994 rtl_set_rx_tx_desc_registers(tp
, ioaddr
);
1996 RTL_W8(Cfg9346
, Cfg9346_Lock
);
2000 RTL_W32(RxMissed
, 0);
2002 rtl_set_rx_mode(dev
);
2004 RTL_W8(ChipCmd
, CmdTxEnb
| CmdRxEnb
);
2006 RTL_W16(MultiIntr
, RTL_R16(MultiIntr
) & 0xF000);
2008 RTL_W16(IntrMask
, tp
->intr_event
);
2011 static void rtl_hw_start_8101(struct net_device
*dev
)
2013 struct rtl8169_private
*tp
= netdev_priv(dev
);
2014 void __iomem
*ioaddr
= tp
->mmio_addr
;
2015 struct pci_dev
*pdev
= tp
->pci_dev
;
2017 if (tp
->mac_version
== RTL_GIGA_MAC_VER_13
) {
2018 pci_write_config_word(pdev
, 0x68, 0x00);
2019 pci_write_config_word(pdev
, 0x69, 0x08);
2022 RTL_W8(Cfg9346
, Cfg9346_Unlock
);
2024 RTL_W8(EarlyTxThres
, EarlyTxThld
);
2026 rtl_set_rx_max_size(ioaddr
);
2028 tp
->cp_cmd
|= rtl_rw_cpluscmd(ioaddr
) | PCIMulRW
;
2030 RTL_W16(CPlusCmd
, tp
->cp_cmd
);
2032 RTL_W16(IntrMitigate
, 0x0000);
2034 rtl_set_rx_tx_desc_registers(tp
, ioaddr
);
2036 RTL_W8(ChipCmd
, CmdTxEnb
| CmdRxEnb
);
2037 rtl_set_rx_tx_config_registers(tp
);
2039 RTL_W8(Cfg9346
, Cfg9346_Lock
);
2043 RTL_W32(RxMissed
, 0);
2045 rtl_set_rx_mode(dev
);
2047 RTL_W8(ChipCmd
, CmdTxEnb
| CmdRxEnb
);
2049 RTL_W16(MultiIntr
, RTL_R16(MultiIntr
) & 0xf000);
2051 RTL_W16(IntrMask
, tp
->intr_event
);
2054 static int rtl8169_change_mtu(struct net_device
*dev
, int new_mtu
)
2056 struct rtl8169_private
*tp
= netdev_priv(dev
);
2059 if (new_mtu
< ETH_ZLEN
|| new_mtu
> SafeMtu
)
2064 if (!netif_running(dev
))
2069 rtl8169_set_rxbufsize(tp
, dev
);
2071 ret
= rtl8169_init_ring(dev
);
2075 netif_poll_enable(dev
);
2079 rtl8169_request_timer(dev
);
2085 static inline void rtl8169_make_unusable_by_asic(struct RxDesc
*desc
)
2087 desc
->addr
= 0x0badbadbadbadbadull
;
2088 desc
->opts1
&= ~cpu_to_le32(DescOwn
| RsvdMask
);
2091 static void rtl8169_free_rx_skb(struct rtl8169_private
*tp
,
2092 struct sk_buff
**sk_buff
, struct RxDesc
*desc
)
2094 struct pci_dev
*pdev
= tp
->pci_dev
;
2096 pci_unmap_single(pdev
, le64_to_cpu(desc
->addr
), tp
->rx_buf_sz
,
2097 PCI_DMA_FROMDEVICE
);
2098 dev_kfree_skb(*sk_buff
);
2100 rtl8169_make_unusable_by_asic(desc
);
2103 static inline void rtl8169_mark_to_asic(struct RxDesc
*desc
, u32 rx_buf_sz
)
2105 u32 eor
= le32_to_cpu(desc
->opts1
) & RingEnd
;
2107 desc
->opts1
= cpu_to_le32(DescOwn
| eor
| rx_buf_sz
);
2110 static inline void rtl8169_map_to_asic(struct RxDesc
*desc
, dma_addr_t mapping
,
2113 desc
->addr
= cpu_to_le64(mapping
);
2115 rtl8169_mark_to_asic(desc
, rx_buf_sz
);
2118 static struct sk_buff
*rtl8169_alloc_rx_skb(struct pci_dev
*pdev
,
2119 struct net_device
*dev
,
2120 struct RxDesc
*desc
, int rx_buf_sz
,
2123 struct sk_buff
*skb
;
2127 pad
= align
? align
: NET_IP_ALIGN
;
2129 skb
= netdev_alloc_skb(dev
, rx_buf_sz
+ pad
);
2133 skb_reserve(skb
, align
? ((pad
- 1) & (unsigned long)skb
->data
) : pad
);
2135 mapping
= pci_map_single(pdev
, skb
->data
, rx_buf_sz
,
2136 PCI_DMA_FROMDEVICE
);
2138 rtl8169_map_to_asic(desc
, mapping
, rx_buf_sz
);
2143 rtl8169_make_unusable_by_asic(desc
);
2147 static void rtl8169_rx_clear(struct rtl8169_private
*tp
)
2151 for (i
= 0; i
< NUM_RX_DESC
; i
++) {
2152 if (tp
->Rx_skbuff
[i
]) {
2153 rtl8169_free_rx_skb(tp
, tp
->Rx_skbuff
+ i
,
2154 tp
->RxDescArray
+ i
);
2159 static u32
rtl8169_rx_fill(struct rtl8169_private
*tp
, struct net_device
*dev
,
2164 for (cur
= start
; end
- cur
!= 0; cur
++) {
2165 struct sk_buff
*skb
;
2166 unsigned int i
= cur
% NUM_RX_DESC
;
2168 WARN_ON((s32
)(end
- cur
) < 0);
2170 if (tp
->Rx_skbuff
[i
])
2173 skb
= rtl8169_alloc_rx_skb(tp
->pci_dev
, dev
,
2174 tp
->RxDescArray
+ i
,
2175 tp
->rx_buf_sz
, tp
->align
);
2179 tp
->Rx_skbuff
[i
] = skb
;
2184 static inline void rtl8169_mark_as_last_descriptor(struct RxDesc
*desc
)
2186 desc
->opts1
|= cpu_to_le32(RingEnd
);
2189 static void rtl8169_init_ring_indexes(struct rtl8169_private
*tp
)
2191 tp
->dirty_tx
= tp
->dirty_rx
= tp
->cur_tx
= tp
->cur_rx
= 0;
2194 static int rtl8169_init_ring(struct net_device
*dev
)
2196 struct rtl8169_private
*tp
= netdev_priv(dev
);
2198 rtl8169_init_ring_indexes(tp
);
2200 memset(tp
->tx_skb
, 0x0, NUM_TX_DESC
* sizeof(struct ring_info
));
2201 memset(tp
->Rx_skbuff
, 0x0, NUM_RX_DESC
* sizeof(struct sk_buff
*));
2203 if (rtl8169_rx_fill(tp
, dev
, 0, NUM_RX_DESC
) != NUM_RX_DESC
)
2206 rtl8169_mark_as_last_descriptor(tp
->RxDescArray
+ NUM_RX_DESC
- 1);
2211 rtl8169_rx_clear(tp
);
2215 static void rtl8169_unmap_tx_skb(struct pci_dev
*pdev
, struct ring_info
*tx_skb
,
2216 struct TxDesc
*desc
)
2218 unsigned int len
= tx_skb
->len
;
2220 pci_unmap_single(pdev
, le64_to_cpu(desc
->addr
), len
, PCI_DMA_TODEVICE
);
2227 static void rtl8169_tx_clear(struct rtl8169_private
*tp
)
2231 for (i
= tp
->dirty_tx
; i
< tp
->dirty_tx
+ NUM_TX_DESC
; i
++) {
2232 unsigned int entry
= i
% NUM_TX_DESC
;
2233 struct ring_info
*tx_skb
= tp
->tx_skb
+ entry
;
2234 unsigned int len
= tx_skb
->len
;
2237 struct sk_buff
*skb
= tx_skb
->skb
;
2239 rtl8169_unmap_tx_skb(tp
->pci_dev
, tx_skb
,
2240 tp
->TxDescArray
+ entry
);
2245 tp
->stats
.tx_dropped
++;
2248 tp
->cur_tx
= tp
->dirty_tx
= 0;
2251 static void rtl8169_schedule_work(struct net_device
*dev
, work_func_t task
)
2253 struct rtl8169_private
*tp
= netdev_priv(dev
);
2255 PREPARE_DELAYED_WORK(&tp
->task
, task
);
2256 schedule_delayed_work(&tp
->task
, 4);
2259 static void rtl8169_wait_for_quiescence(struct net_device
*dev
)
2261 struct rtl8169_private
*tp
= netdev_priv(dev
);
2262 void __iomem
*ioaddr
= tp
->mmio_addr
;
2264 synchronize_irq(dev
->irq
);
2266 /* Wait for any pending NAPI task to complete */
2267 netif_poll_disable(dev
);
2269 rtl8169_irq_mask_and_ack(ioaddr
);
2271 netif_poll_enable(dev
);
2274 static void rtl8169_reinit_task(struct work_struct
*work
)
2276 struct rtl8169_private
*tp
=
2277 container_of(work
, struct rtl8169_private
, task
.work
);
2278 struct net_device
*dev
= tp
->dev
;
2283 if (!netif_running(dev
))
2286 rtl8169_wait_for_quiescence(dev
);
2289 ret
= rtl8169_open(dev
);
2290 if (unlikely(ret
< 0)) {
2291 if (net_ratelimit() && netif_msg_drv(tp
)) {
2292 printk(PFX KERN_ERR
"%s: reinit failure (status = %d)."
2293 " Rescheduling.\n", dev
->name
, ret
);
2295 rtl8169_schedule_work(dev
, rtl8169_reinit_task
);
2302 static void rtl8169_reset_task(struct work_struct
*work
)
2304 struct rtl8169_private
*tp
=
2305 container_of(work
, struct rtl8169_private
, task
.work
);
2306 struct net_device
*dev
= tp
->dev
;
2310 if (!netif_running(dev
))
2313 rtl8169_wait_for_quiescence(dev
);
2315 rtl8169_rx_interrupt(dev
, tp
, tp
->mmio_addr
);
2316 rtl8169_tx_clear(tp
);
2318 if (tp
->dirty_rx
== tp
->cur_rx
) {
2319 rtl8169_init_ring_indexes(tp
);
2321 netif_wake_queue(dev
);
2323 if (net_ratelimit() && netif_msg_intr(tp
)) {
2324 printk(PFX KERN_EMERG
"%s: Rx buffers shortage\n",
2327 rtl8169_schedule_work(dev
, rtl8169_reset_task
);
2334 static void rtl8169_tx_timeout(struct net_device
*dev
)
2336 struct rtl8169_private
*tp
= netdev_priv(dev
);
2338 rtl8169_hw_reset(tp
->mmio_addr
);
2340 /* Let's wait a bit while any (async) irq lands on */
2341 rtl8169_schedule_work(dev
, rtl8169_reset_task
);
2344 static int rtl8169_xmit_frags(struct rtl8169_private
*tp
, struct sk_buff
*skb
,
2347 struct skb_shared_info
*info
= skb_shinfo(skb
);
2348 unsigned int cur_frag
, entry
;
2349 struct TxDesc
* uninitialized_var(txd
);
2352 for (cur_frag
= 0; cur_frag
< info
->nr_frags
; cur_frag
++) {
2353 skb_frag_t
*frag
= info
->frags
+ cur_frag
;
2358 entry
= (entry
+ 1) % NUM_TX_DESC
;
2360 txd
= tp
->TxDescArray
+ entry
;
2362 addr
= ((void *) page_address(frag
->page
)) + frag
->page_offset
;
2363 mapping
= pci_map_single(tp
->pci_dev
, addr
, len
, PCI_DMA_TODEVICE
);
2365 /* anti gcc 2.95.3 bugware (sic) */
2366 status
= opts1
| len
| (RingEnd
* !((entry
+ 1) % NUM_TX_DESC
));
2368 txd
->opts1
= cpu_to_le32(status
);
2369 txd
->addr
= cpu_to_le64(mapping
);
2371 tp
->tx_skb
[entry
].len
= len
;
2375 tp
->tx_skb
[entry
].skb
= skb
;
2376 txd
->opts1
|= cpu_to_le32(LastFrag
);
2382 static inline u32
rtl8169_tso_csum(struct sk_buff
*skb
, struct net_device
*dev
)
2384 if (dev
->features
& NETIF_F_TSO
) {
2385 u32 mss
= skb_shinfo(skb
)->gso_size
;
2388 return LargeSend
| ((mss
& MSSMask
) << MSSShift
);
2390 if (skb
->ip_summed
== CHECKSUM_PARTIAL
) {
2391 const struct iphdr
*ip
= ip_hdr(skb
);
2393 if (ip
->protocol
== IPPROTO_TCP
)
2394 return IPCS
| TCPCS
;
2395 else if (ip
->protocol
== IPPROTO_UDP
)
2396 return IPCS
| UDPCS
;
2397 WARN_ON(1); /* we need a WARN() */
2402 static int rtl8169_start_xmit(struct sk_buff
*skb
, struct net_device
*dev
)
2404 struct rtl8169_private
*tp
= netdev_priv(dev
);
2405 unsigned int frags
, entry
= tp
->cur_tx
% NUM_TX_DESC
;
2406 struct TxDesc
*txd
= tp
->TxDescArray
+ entry
;
2407 void __iomem
*ioaddr
= tp
->mmio_addr
;
2411 int ret
= NETDEV_TX_OK
;
2413 if (unlikely(TX_BUFFS_AVAIL(tp
) < skb_shinfo(skb
)->nr_frags
)) {
2414 if (netif_msg_drv(tp
)) {
2416 "%s: BUG! Tx Ring full when queue awake!\n",
2422 if (unlikely(le32_to_cpu(txd
->opts1
) & DescOwn
))
2425 opts1
= DescOwn
| rtl8169_tso_csum(skb
, dev
);
2427 frags
= rtl8169_xmit_frags(tp
, skb
, opts1
);
2429 len
= skb_headlen(skb
);
2434 if (unlikely(len
< ETH_ZLEN
)) {
2435 if (skb_padto(skb
, ETH_ZLEN
))
2436 goto err_update_stats
;
2440 opts1
|= FirstFrag
| LastFrag
;
2441 tp
->tx_skb
[entry
].skb
= skb
;
2444 mapping
= pci_map_single(tp
->pci_dev
, skb
->data
, len
, PCI_DMA_TODEVICE
);
2446 tp
->tx_skb
[entry
].len
= len
;
2447 txd
->addr
= cpu_to_le64(mapping
);
2448 txd
->opts2
= cpu_to_le32(rtl8169_tx_vlan_tag(tp
, skb
));
2452 /* anti gcc 2.95.3 bugware (sic) */
2453 status
= opts1
| len
| (RingEnd
* !((entry
+ 1) % NUM_TX_DESC
));
2454 txd
->opts1
= cpu_to_le32(status
);
2456 dev
->trans_start
= jiffies
;
2458 tp
->cur_tx
+= frags
+ 1;
2462 RTL_W8(TxPoll
, NPQ
); /* set polling bit */
2464 if (TX_BUFFS_AVAIL(tp
) < MAX_SKB_FRAGS
) {
2465 netif_stop_queue(dev
);
2467 if (TX_BUFFS_AVAIL(tp
) >= MAX_SKB_FRAGS
)
2468 netif_wake_queue(dev
);
2475 netif_stop_queue(dev
);
2476 ret
= NETDEV_TX_BUSY
;
2478 tp
->stats
.tx_dropped
++;
2482 static void rtl8169_pcierr_interrupt(struct net_device
*dev
)
2484 struct rtl8169_private
*tp
= netdev_priv(dev
);
2485 struct pci_dev
*pdev
= tp
->pci_dev
;
2486 void __iomem
*ioaddr
= tp
->mmio_addr
;
2487 u16 pci_status
, pci_cmd
;
2489 pci_read_config_word(pdev
, PCI_COMMAND
, &pci_cmd
);
2490 pci_read_config_word(pdev
, PCI_STATUS
, &pci_status
);
2492 if (netif_msg_intr(tp
)) {
2494 "%s: PCI error (cmd = 0x%04x, status = 0x%04x).\n",
2495 dev
->name
, pci_cmd
, pci_status
);
2499 * The recovery sequence below admits a very elaborated explanation:
2500 * - it seems to work;
2501 * - I did not see what else could be done;
2502 * - it makes iop3xx happy.
2504 * Feel free to adjust to your needs.
2506 if (pdev
->broken_parity_status
)
2507 pci_cmd
&= ~PCI_COMMAND_PARITY
;
2509 pci_cmd
|= PCI_COMMAND_SERR
| PCI_COMMAND_PARITY
;
2511 pci_write_config_word(pdev
, PCI_COMMAND
, pci_cmd
);
2513 pci_write_config_word(pdev
, PCI_STATUS
,
2514 pci_status
& (PCI_STATUS_DETECTED_PARITY
|
2515 PCI_STATUS_SIG_SYSTEM_ERROR
| PCI_STATUS_REC_MASTER_ABORT
|
2516 PCI_STATUS_REC_TARGET_ABORT
| PCI_STATUS_SIG_TARGET_ABORT
));
2518 /* The infamous DAC f*ckup only happens at boot time */
2519 if ((tp
->cp_cmd
& PCIDAC
) && !tp
->dirty_rx
&& !tp
->cur_rx
) {
2520 if (netif_msg_intr(tp
))
2521 printk(KERN_INFO
"%s: disabling PCI DAC.\n", dev
->name
);
2522 tp
->cp_cmd
&= ~PCIDAC
;
2523 RTL_W16(CPlusCmd
, tp
->cp_cmd
);
2524 dev
->features
&= ~NETIF_F_HIGHDMA
;
2527 rtl8169_hw_reset(ioaddr
);
2529 rtl8169_schedule_work(dev
, rtl8169_reinit_task
);
2532 static void rtl8169_tx_interrupt(struct net_device
*dev
,
2533 struct rtl8169_private
*tp
,
2534 void __iomem
*ioaddr
)
2536 unsigned int dirty_tx
, tx_left
;
2538 dirty_tx
= tp
->dirty_tx
;
2540 tx_left
= tp
->cur_tx
- dirty_tx
;
2542 while (tx_left
> 0) {
2543 unsigned int entry
= dirty_tx
% NUM_TX_DESC
;
2544 struct ring_info
*tx_skb
= tp
->tx_skb
+ entry
;
2545 u32 len
= tx_skb
->len
;
2549 status
= le32_to_cpu(tp
->TxDescArray
[entry
].opts1
);
2550 if (status
& DescOwn
)
2553 tp
->stats
.tx_bytes
+= len
;
2554 tp
->stats
.tx_packets
++;
2556 rtl8169_unmap_tx_skb(tp
->pci_dev
, tx_skb
, tp
->TxDescArray
+ entry
);
2558 if (status
& LastFrag
) {
2559 dev_kfree_skb_irq(tx_skb
->skb
);
2566 if (tp
->dirty_tx
!= dirty_tx
) {
2567 tp
->dirty_tx
= dirty_tx
;
2569 if (netif_queue_stopped(dev
) &&
2570 (TX_BUFFS_AVAIL(tp
) >= MAX_SKB_FRAGS
)) {
2571 netif_wake_queue(dev
);
2574 * 8168 hack: TxPoll requests are lost when the Tx packets are
2575 * too close. Let's kick an extra TxPoll request when a burst
2576 * of start_xmit activity is detected (if it is not detected,
2577 * it is slow enough). -- FR
2580 if (tp
->cur_tx
!= dirty_tx
)
2581 RTL_W8(TxPoll
, NPQ
);
2585 static inline int rtl8169_fragmented_frame(u32 status
)
2587 return (status
& (FirstFrag
| LastFrag
)) != (FirstFrag
| LastFrag
);
2590 static inline void rtl8169_rx_csum(struct sk_buff
*skb
, struct RxDesc
*desc
)
2592 u32 opts1
= le32_to_cpu(desc
->opts1
);
2593 u32 status
= opts1
& RxProtoMask
;
2595 if (((status
== RxProtoTCP
) && !(opts1
& TCPFail
)) ||
2596 ((status
== RxProtoUDP
) && !(opts1
& UDPFail
)) ||
2597 ((status
== RxProtoIP
) && !(opts1
& IPFail
)))
2598 skb
->ip_summed
= CHECKSUM_UNNECESSARY
;
2600 skb
->ip_summed
= CHECKSUM_NONE
;
2603 static inline bool rtl8169_try_rx_copy(struct sk_buff
**sk_buff
,
2604 struct rtl8169_private
*tp
, int pkt_size
,
2607 struct sk_buff
*skb
;
2610 if (pkt_size
>= rx_copybreak
)
2613 skb
= netdev_alloc_skb(tp
->dev
, pkt_size
+ NET_IP_ALIGN
);
2617 pci_dma_sync_single_for_cpu(tp
->pci_dev
, addr
, pkt_size
,
2618 PCI_DMA_FROMDEVICE
);
2619 skb_reserve(skb
, NET_IP_ALIGN
);
2620 skb_copy_from_linear_data(*sk_buff
, skb
->data
, pkt_size
);
2627 static int rtl8169_rx_interrupt(struct net_device
*dev
,
2628 struct rtl8169_private
*tp
,
2629 void __iomem
*ioaddr
)
2631 unsigned int cur_rx
, rx_left
;
2632 unsigned int delta
, count
;
2634 cur_rx
= tp
->cur_rx
;
2635 rx_left
= NUM_RX_DESC
+ tp
->dirty_rx
- cur_rx
;
2636 rx_left
= rtl8169_rx_quota(rx_left
, (u32
) dev
->quota
);
2638 for (; rx_left
> 0; rx_left
--, cur_rx
++) {
2639 unsigned int entry
= cur_rx
% NUM_RX_DESC
;
2640 struct RxDesc
*desc
= tp
->RxDescArray
+ entry
;
2644 status
= le32_to_cpu(desc
->opts1
);
2646 if (status
& DescOwn
)
2648 if (unlikely(status
& RxRES
)) {
2649 if (netif_msg_rx_err(tp
)) {
2651 "%s: Rx ERROR. status = %08x\n",
2654 tp
->stats
.rx_errors
++;
2655 if (status
& (RxRWT
| RxRUNT
))
2656 tp
->stats
.rx_length_errors
++;
2658 tp
->stats
.rx_crc_errors
++;
2659 if (status
& RxFOVF
) {
2660 rtl8169_schedule_work(dev
, rtl8169_reset_task
);
2661 tp
->stats
.rx_fifo_errors
++;
2663 rtl8169_mark_to_asic(desc
, tp
->rx_buf_sz
);
2665 struct sk_buff
*skb
= tp
->Rx_skbuff
[entry
];
2666 dma_addr_t addr
= le64_to_cpu(desc
->addr
);
2667 int pkt_size
= (status
& 0x00001FFF) - 4;
2668 struct pci_dev
*pdev
= tp
->pci_dev
;
2671 * The driver does not support incoming fragmented
2672 * frames. They are seen as a symptom of over-mtu
2675 if (unlikely(rtl8169_fragmented_frame(status
))) {
2676 tp
->stats
.rx_dropped
++;
2677 tp
->stats
.rx_length_errors
++;
2678 rtl8169_mark_to_asic(desc
, tp
->rx_buf_sz
);
2682 rtl8169_rx_csum(skb
, desc
);
2684 if (rtl8169_try_rx_copy(&skb
, tp
, pkt_size
, addr
)) {
2685 pci_dma_sync_single_for_device(pdev
, addr
,
2686 pkt_size
, PCI_DMA_FROMDEVICE
);
2687 rtl8169_mark_to_asic(desc
, tp
->rx_buf_sz
);
2689 pci_unmap_single(pdev
, addr
, pkt_size
,
2690 PCI_DMA_FROMDEVICE
);
2691 tp
->Rx_skbuff
[entry
] = NULL
;
2694 skb_put(skb
, pkt_size
);
2695 skb
->protocol
= eth_type_trans(skb
, dev
);
2697 if (rtl8169_rx_vlan_skb(tp
, desc
, skb
) < 0)
2698 rtl8169_rx_skb(skb
);
2700 dev
->last_rx
= jiffies
;
2701 tp
->stats
.rx_bytes
+= pkt_size
;
2702 tp
->stats
.rx_packets
++;
2705 /* Work around for AMD plateform. */
2706 if ((desc
->opts2
& 0xfffe000) &&
2707 (tp
->mac_version
== RTL_GIGA_MAC_VER_05
)) {
2713 count
= cur_rx
- tp
->cur_rx
;
2714 tp
->cur_rx
= cur_rx
;
2716 delta
= rtl8169_rx_fill(tp
, dev
, tp
->dirty_rx
, tp
->cur_rx
);
2717 if (!delta
&& count
&& netif_msg_intr(tp
))
2718 printk(KERN_INFO
"%s: no Rx buffer allocated\n", dev
->name
);
2719 tp
->dirty_rx
+= delta
;
2722 * FIXME: until there is periodic timer to try and refill the ring,
2723 * a temporary shortage may definitely kill the Rx process.
2724 * - disable the asic to try and avoid an overflow and kick it again
2726 * - how do others driver handle this condition (Uh oh...).
2728 if ((tp
->dirty_rx
+ NUM_RX_DESC
== tp
->cur_rx
) && netif_msg_intr(tp
))
2729 printk(KERN_EMERG
"%s: Rx buffers exhausted\n", dev
->name
);
2734 static irqreturn_t
rtl8169_interrupt(int irq
, void *dev_instance
)
2736 struct net_device
*dev
= dev_instance
;
2737 struct rtl8169_private
*tp
= netdev_priv(dev
);
2738 int boguscnt
= max_interrupt_work
;
2739 void __iomem
*ioaddr
= tp
->mmio_addr
;
2744 status
= RTL_R16(IntrStatus
);
2746 /* hotplug/major error/no more work/shared irq */
2747 if ((status
== 0xFFFF) || !status
)
2752 if (unlikely(!netif_running(dev
))) {
2753 rtl8169_asic_down(ioaddr
);
2757 status
&= tp
->intr_mask
;
2759 (status
& RxFIFOOver
) ? (status
| RxOverflow
) : status
);
2761 if (!(status
& tp
->intr_event
))
2764 /* Work around for rx fifo overflow */
2765 if (unlikely(status
& RxFIFOOver
) &&
2766 (tp
->mac_version
== RTL_GIGA_MAC_VER_11
)) {
2767 netif_stop_queue(dev
);
2768 rtl8169_tx_timeout(dev
);
2772 if (unlikely(status
& SYSErr
)) {
2773 rtl8169_pcierr_interrupt(dev
);
2777 if (status
& LinkChg
)
2778 rtl8169_check_link_status(dev
, tp
, ioaddr
);
2780 #ifdef CONFIG_R8169_NAPI
2781 if (status
& tp
->napi_event
) {
2782 RTL_W16(IntrMask
, tp
->intr_event
& ~tp
->napi_event
);
2783 tp
->intr_mask
= ~tp
->napi_event
;
2785 if (likely(netif_rx_schedule_prep(dev
)))
2786 __netif_rx_schedule(dev
);
2787 else if (netif_msg_intr(tp
)) {
2788 printk(KERN_INFO
"%s: interrupt %04x in poll\n",
2795 if (status
& (RxOK
| RxOverflow
| RxFIFOOver
))
2796 rtl8169_rx_interrupt(dev
, tp
, ioaddr
);
2799 if (status
& (TxOK
| TxErr
))
2800 rtl8169_tx_interrupt(dev
, tp
, ioaddr
);
2804 } while (boguscnt
> 0);
2806 if (boguscnt
<= 0) {
2807 if (netif_msg_intr(tp
) && net_ratelimit() ) {
2809 "%s: Too much work at interrupt!\n", dev
->name
);
2811 /* Clear all interrupt sources. */
2812 RTL_W16(IntrStatus
, 0xffff);
2815 return IRQ_RETVAL(handled
);
2818 #ifdef CONFIG_R8169_NAPI
2819 static int rtl8169_poll(struct net_device
*dev
, int *budget
)
2821 unsigned int work_done
, work_to_do
= min(*budget
, dev
->quota
);
2822 struct rtl8169_private
*tp
= netdev_priv(dev
);
2823 void __iomem
*ioaddr
= tp
->mmio_addr
;
2825 work_done
= rtl8169_rx_interrupt(dev
, tp
, ioaddr
);
2826 rtl8169_tx_interrupt(dev
, tp
, ioaddr
);
2828 *budget
-= work_done
;
2829 dev
->quota
-= work_done
;
2831 if (work_done
< work_to_do
) {
2832 netif_rx_complete(dev
);
2833 tp
->intr_mask
= 0xffff;
2835 * 20040426: the barrier is not strictly required but the
2836 * behavior of the irq handler could be less predictable
2837 * without it. Btw, the lack of flush for the posted pci
2838 * write is safe - FR
2841 RTL_W16(IntrMask
, tp
->intr_event
);
2844 return (work_done
>= work_to_do
);
2848 static void rtl8169_down(struct net_device
*dev
)
2850 struct rtl8169_private
*tp
= netdev_priv(dev
);
2851 void __iomem
*ioaddr
= tp
->mmio_addr
;
2852 unsigned int poll_locked
= 0;
2853 unsigned int intrmask
;
2855 rtl8169_delete_timer(dev
);
2857 netif_stop_queue(dev
);
2860 spin_lock_irq(&tp
->lock
);
2862 rtl8169_asic_down(ioaddr
);
2864 /* Update the error counts. */
2865 tp
->stats
.rx_missed_errors
+= RTL_R32(RxMissed
);
2866 RTL_W32(RxMissed
, 0);
2868 spin_unlock_irq(&tp
->lock
);
2870 synchronize_irq(dev
->irq
);
2873 netif_poll_disable(dev
);
2877 /* Give a racing hard_start_xmit a few cycles to complete. */
2878 synchronize_sched(); /* FIXME: should this be synchronize_irq()? */
2881 * And now for the 50k$ question: are IRQ disabled or not ?
2883 * Two paths lead here:
2885 * -> netif_running() is available to sync the current code and the
2886 * IRQ handler. See rtl8169_interrupt for details.
2887 * 2) dev->change_mtu
2888 * -> rtl8169_poll can not be issued again and re-enable the
2889 * interruptions. Let's simply issue the IRQ down sequence again.
2891 * No loop if hotpluged or major error (0xffff).
2893 intrmask
= RTL_R16(IntrMask
);
2894 if (intrmask
&& (intrmask
!= 0xffff))
2897 rtl8169_tx_clear(tp
);
2899 rtl8169_rx_clear(tp
);
2902 static int rtl8169_close(struct net_device
*dev
)
2904 struct rtl8169_private
*tp
= netdev_priv(dev
);
2905 struct pci_dev
*pdev
= tp
->pci_dev
;
2909 free_irq(dev
->irq
, dev
);
2911 netif_poll_enable(dev
);
2913 pci_free_consistent(pdev
, R8169_RX_RING_BYTES
, tp
->RxDescArray
,
2915 pci_free_consistent(pdev
, R8169_TX_RING_BYTES
, tp
->TxDescArray
,
2917 tp
->TxDescArray
= NULL
;
2918 tp
->RxDescArray
= NULL
;
2923 static void rtl_set_rx_mode(struct net_device
*dev
)
2925 struct rtl8169_private
*tp
= netdev_priv(dev
);
2926 void __iomem
*ioaddr
= tp
->mmio_addr
;
2927 unsigned long flags
;
2928 u32 mc_filter
[2]; /* Multicast hash filter */
2932 if (dev
->flags
& IFF_PROMISC
) {
2933 /* Unconditionally log net taps. */
2934 if (netif_msg_link(tp
)) {
2935 printk(KERN_NOTICE
"%s: Promiscuous mode enabled.\n",
2939 AcceptBroadcast
| AcceptMulticast
| AcceptMyPhys
|
2941 mc_filter
[1] = mc_filter
[0] = 0xffffffff;
2942 } else if ((dev
->mc_count
> multicast_filter_limit
)
2943 || (dev
->flags
& IFF_ALLMULTI
)) {
2944 /* Too many to filter perfectly -- accept all multicasts. */
2945 rx_mode
= AcceptBroadcast
| AcceptMulticast
| AcceptMyPhys
;
2946 mc_filter
[1] = mc_filter
[0] = 0xffffffff;
2948 struct dev_mc_list
*mclist
;
2951 rx_mode
= AcceptBroadcast
| AcceptMyPhys
;
2952 mc_filter
[1] = mc_filter
[0] = 0;
2953 for (i
= 0, mclist
= dev
->mc_list
; mclist
&& i
< dev
->mc_count
;
2954 i
++, mclist
= mclist
->next
) {
2955 int bit_nr
= ether_crc(ETH_ALEN
, mclist
->dmi_addr
) >> 26;
2956 mc_filter
[bit_nr
>> 5] |= 1 << (bit_nr
& 31);
2957 rx_mode
|= AcceptMulticast
;
2961 spin_lock_irqsave(&tp
->lock
, flags
);
2963 tmp
= rtl8169_rx_config
| rx_mode
|
2964 (RTL_R32(RxConfig
) & rtl_chip_info
[tp
->chipset
].RxConfigMask
);
2966 if ((tp
->mac_version
== RTL_GIGA_MAC_VER_11
) ||
2967 (tp
->mac_version
== RTL_GIGA_MAC_VER_12
) ||
2968 (tp
->mac_version
== RTL_GIGA_MAC_VER_13
) ||
2969 (tp
->mac_version
== RTL_GIGA_MAC_VER_14
) ||
2970 (tp
->mac_version
== RTL_GIGA_MAC_VER_15
)) {
2971 mc_filter
[0] = 0xffffffff;
2972 mc_filter
[1] = 0xffffffff;
2975 RTL_W32(MAR0
+ 0, mc_filter
[0]);
2976 RTL_W32(MAR0
+ 4, mc_filter
[1]);
2978 RTL_W32(RxConfig
, tmp
);
2980 spin_unlock_irqrestore(&tp
->lock
, flags
);
2984 * rtl8169_get_stats - Get rtl8169 read/write statistics
2985 * @dev: The Ethernet Device to get statistics for
2987 * Get TX/RX statistics for rtl8169
2989 static struct net_device_stats
*rtl8169_get_stats(struct net_device
*dev
)
2991 struct rtl8169_private
*tp
= netdev_priv(dev
);
2992 void __iomem
*ioaddr
= tp
->mmio_addr
;
2993 unsigned long flags
;
2995 if (netif_running(dev
)) {
2996 spin_lock_irqsave(&tp
->lock
, flags
);
2997 tp
->stats
.rx_missed_errors
+= RTL_R32(RxMissed
);
2998 RTL_W32(RxMissed
, 0);
2999 spin_unlock_irqrestore(&tp
->lock
, flags
);
3007 static int rtl8169_suspend(struct pci_dev
*pdev
, pm_message_t state
)
3009 struct net_device
*dev
= pci_get_drvdata(pdev
);
3010 struct rtl8169_private
*tp
= netdev_priv(dev
);
3011 void __iomem
*ioaddr
= tp
->mmio_addr
;
3013 if (!netif_running(dev
))
3014 goto out_pci_suspend
;
3016 netif_device_detach(dev
);
3017 netif_stop_queue(dev
);
3019 spin_lock_irq(&tp
->lock
);
3021 rtl8169_asic_down(ioaddr
);
3023 tp
->stats
.rx_missed_errors
+= RTL_R32(RxMissed
);
3024 RTL_W32(RxMissed
, 0);
3026 spin_unlock_irq(&tp
->lock
);
3029 pci_save_state(pdev
);
3030 pci_enable_wake(pdev
, pci_choose_state(pdev
, state
), tp
->wol_enabled
);
3031 pci_set_power_state(pdev
, pci_choose_state(pdev
, state
));
3036 static int rtl8169_resume(struct pci_dev
*pdev
)
3038 struct net_device
*dev
= pci_get_drvdata(pdev
);
3040 pci_set_power_state(pdev
, PCI_D0
);
3041 pci_restore_state(pdev
);
3042 pci_enable_wake(pdev
, PCI_D0
, 0);
3044 if (!netif_running(dev
))
3047 netif_device_attach(dev
);
3049 rtl8169_schedule_work(dev
, rtl8169_reset_task
);
3054 #endif /* CONFIG_PM */
3056 static struct pci_driver rtl8169_pci_driver
= {
3058 .id_table
= rtl8169_pci_tbl
,
3059 .probe
= rtl8169_init_one
,
3060 .remove
= __devexit_p(rtl8169_remove_one
),
3062 .suspend
= rtl8169_suspend
,
3063 .resume
= rtl8169_resume
,
3067 static int __init
rtl8169_init_module(void)
3069 return pci_register_driver(&rtl8169_pci_driver
);
3072 static void __exit
rtl8169_cleanup_module(void)
3074 pci_unregister_driver(&rtl8169_pci_driver
);
3077 module_init(rtl8169_init_module
);
3078 module_exit(rtl8169_cleanup_module
);