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r8169: 8168b Tx performance tweak
[linux-2.6/mini2440.git] / drivers / net / r8169.c
blobf929dbada84e90108d431a5b8affdf24812cf39e
1 /*
2 * r8169.c: RealTek 8169/8168/8101 ethernet driver.
3 *
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.
7 *
8 * See MAINTAINERS file for support contact information.
9 */
10
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>
21 #include <linux/in.h>
22 #include <linux/ip.h>
23 #include <linux/tcp.h>
24 #include <linux/init.h>
25 #include <linux/dma-mapping.h>
26
27 #include <asm/system.h>
28 #include <asm/io.h>
29 #include <asm/irq.h>
30
31 #define RTL8169_VERSION "2.3LK-NAPI"
32 #define MODULENAME "r8169"
33 #define PFX MODULENAME ": "
34
35 #ifdef RTL8169_DEBUG
36 #define assert(expr) \
37 if (!(expr)) { \
38 printk( "Assertion failed! %s,%s,%s,line=%d\n", \
39 #expr,__FILE__,__func__,__LINE__); \
40 }
41 #define dprintk(fmt, args...) \
42 do { printk(KERN_DEBUG PFX fmt, ## args); } while (0)
43 #else
44 #define assert(expr) do {} while (0)
45 #define dprintk(fmt, args...) do {} while (0)
46 #endif /* RTL8169_DEBUG */
47
48 #define R8169_MSG_DEFAULT \
49 (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_IFUP | NETIF_MSG_IFDOWN)
50
51 #define TX_BUFFS_AVAIL(tp) \
52 (tp->dirty_tx + NUM_TX_DESC - tp->cur_tx - 1)
53
54 /* Maximum events (Rx packets, etc.) to handle at each interrupt. */
55 static const int max_interrupt_work = 20;
56
57 /* Maximum number of multicast addresses to filter (vs. Rx-all-multicast).
58 The RTL chips use a 64 element hash table based on the Ethernet CRC. */
59 static const int multicast_filter_limit = 32;
60
61 /* MAC address length */
62 #define MAC_ADDR_LEN 6
63
64 #define MAX_READ_REQUEST_SHIFT 12
65 #define RX_FIFO_THRESH 7 /* 7 means NO threshold, Rx buffer level before first PCI xfer. */
66 #define RX_DMA_BURST 6 /* Maximum PCI burst, '6' is 1024 */
67 #define TX_DMA_BURST 6 /* Maximum PCI burst, '6' is 1024 */
68 #define EarlyTxThld 0x3F /* 0x3F means NO early transmit */
69 #define RxPacketMaxSize 0x3FE8 /* 16K - 1 - ETH_HLEN - VLAN - CRC... */
70 #define SafeMtu 0x1c20 /* ... actually life sucks beyond ~7k */
71 #define InterFrameGap 0x03 /* 3 means InterFrameGap = the shortest one */
72
73 #define R8169_REGS_SIZE 256
74 #define R8169_NAPI_WEIGHT 64
75 #define NUM_TX_DESC 64 /* Number of Tx descriptor registers */
76 #define NUM_RX_DESC 256 /* Number of Rx descriptor registers */
77 #define RX_BUF_SIZE 1536 /* Rx Buffer size */
78 #define R8169_TX_RING_BYTES (NUM_TX_DESC * sizeof(struct TxDesc))
79 #define R8169_RX_RING_BYTES (NUM_RX_DESC * sizeof(struct RxDesc))
80
81 #define RTL8169_TX_TIMEOUT (6*HZ)
82 #define RTL8169_PHY_TIMEOUT (10*HZ)
83
84 /* write/read MMIO register */
85 #define RTL_W8(reg, val8) writeb ((val8), ioaddr + (reg))
86 #define RTL_W16(reg, val16) writew ((val16), ioaddr + (reg))
87 #define RTL_W32(reg, val32) writel ((val32), ioaddr + (reg))
88 #define RTL_R8(reg) readb (ioaddr + (reg))
89 #define RTL_R16(reg) readw (ioaddr + (reg))
90 #define RTL_R32(reg) ((unsigned long) readl (ioaddr + (reg)))
91
92 enum mac_version {
93 RTL_GIGA_MAC_VER_01 = 0x01, // 8169
94 RTL_GIGA_MAC_VER_02 = 0x02, // 8169S
95 RTL_GIGA_MAC_VER_03 = 0x03, // 8110S
96 RTL_GIGA_MAC_VER_04 = 0x04, // 8169SB
97 RTL_GIGA_MAC_VER_05 = 0x05, // 8110SCd
98 RTL_GIGA_MAC_VER_06 = 0x06, // 8110SCe
99 RTL_GIGA_MAC_VER_07 = 0x07, // 8102e
100 RTL_GIGA_MAC_VER_08 = 0x08, // 8102e
101 RTL_GIGA_MAC_VER_09 = 0x09, // 8102e
102 RTL_GIGA_MAC_VER_10 = 0x0a, // 8101e
103 RTL_GIGA_MAC_VER_11 = 0x0b, // 8168Bb
104 RTL_GIGA_MAC_VER_12 = 0x0c, // 8168Be
105 RTL_GIGA_MAC_VER_13 = 0x0d, // 8101Eb
106 RTL_GIGA_MAC_VER_14 = 0x0e, // 8101 ?
107 RTL_GIGA_MAC_VER_15 = 0x0f, // 8101 ?
108 RTL_GIGA_MAC_VER_16 = 0x11, // 8101Ec
109 RTL_GIGA_MAC_VER_17 = 0x10, // 8168Bf
110 RTL_GIGA_MAC_VER_18 = 0x12, // 8168CP
111 RTL_GIGA_MAC_VER_19 = 0x13, // 8168C
112 RTL_GIGA_MAC_VER_20 = 0x14 // 8168C
113 };
114
115 #define _R(NAME,MAC,MASK) \
116 { .name = NAME, .mac_version = MAC, .RxConfigMask = MASK }
117
118 static const struct {
119 const char *name;
120 u8 mac_version;
121 u32 RxConfigMask; /* Clears the bits supported by this chip */
122 } rtl_chip_info[] = {
123 _R("RTL8169", RTL_GIGA_MAC_VER_01, 0xff7e1880), // 8169
124 _R("RTL8169s", RTL_GIGA_MAC_VER_02, 0xff7e1880), // 8169S
125 _R("RTL8110s", RTL_GIGA_MAC_VER_03, 0xff7e1880), // 8110S
126 _R("RTL8169sb/8110sb", RTL_GIGA_MAC_VER_04, 0xff7e1880), // 8169SB
127 _R("RTL8169sc/8110sc", RTL_GIGA_MAC_VER_05, 0xff7e1880), // 8110SCd
128 _R("RTL8169sc/8110sc", RTL_GIGA_MAC_VER_06, 0xff7e1880), // 8110SCe
129 _R("RTL8102e", RTL_GIGA_MAC_VER_07, 0xff7e1880), // PCI-E
130 _R("RTL8102e", RTL_GIGA_MAC_VER_08, 0xff7e1880), // PCI-E
131 _R("RTL8102e", RTL_GIGA_MAC_VER_09, 0xff7e1880), // PCI-E
132 _R("RTL8101e", RTL_GIGA_MAC_VER_10, 0xff7e1880), // PCI-E
133 _R("RTL8168b/8111b", RTL_GIGA_MAC_VER_11, 0xff7e1880), // PCI-E
134 _R("RTL8168b/8111b", RTL_GIGA_MAC_VER_12, 0xff7e1880), // PCI-E
135 _R("RTL8101e", RTL_GIGA_MAC_VER_13, 0xff7e1880), // PCI-E 8139
136 _R("RTL8100e", RTL_GIGA_MAC_VER_14, 0xff7e1880), // PCI-E 8139
137 _R("RTL8100e", RTL_GIGA_MAC_VER_15, 0xff7e1880), // PCI-E 8139
138 _R("RTL8168b/8111b", RTL_GIGA_MAC_VER_17, 0xff7e1880), // PCI-E
139 _R("RTL8101e", RTL_GIGA_MAC_VER_16, 0xff7e1880), // PCI-E
140 _R("RTL8168cp/8111cp", RTL_GIGA_MAC_VER_18, 0xff7e1880), // PCI-E
141 _R("RTL8168c/8111c", RTL_GIGA_MAC_VER_19, 0xff7e1880), // PCI-E
142 _R("RTL8168c/8111c", RTL_GIGA_MAC_VER_20, 0xff7e1880) // PCI-E
143 };
144 #undef _R
145
146 enum cfg_version {
147 RTL_CFG_0 = 0x00,
148 RTL_CFG_1,
149 RTL_CFG_2
150 };
151
152 static void rtl_hw_start_8169(struct net_device *);
153 static void rtl_hw_start_8168(struct net_device *);
154 static void rtl_hw_start_8101(struct net_device *);
155
156 static struct pci_device_id rtl8169_pci_tbl[] = {
157 { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8129), 0, 0, RTL_CFG_0 },
158 { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8136), 0, 0, RTL_CFG_2 },
159 { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8167), 0, 0, RTL_CFG_0 },
160 { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8168), 0, 0, RTL_CFG_1 },
161 { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8169), 0, 0, RTL_CFG_0 },
162 { PCI_DEVICE(PCI_VENDOR_ID_DLINK, 0x4300), 0, 0, RTL_CFG_0 },
163 { PCI_DEVICE(PCI_VENDOR_ID_AT, 0xc107), 0, 0, RTL_CFG_0 },
164 { PCI_DEVICE(0x16ec, 0x0116), 0, 0, RTL_CFG_0 },
165 { PCI_VENDOR_ID_LINKSYS, 0x1032,
166 PCI_ANY_ID, 0x0024, 0, 0, RTL_CFG_0 },
167 { 0x0001, 0x8168,
168 PCI_ANY_ID, 0x2410, 0, 0, RTL_CFG_2 },
169 {0,},
170 };
171
172 MODULE_DEVICE_TABLE(pci, rtl8169_pci_tbl);
173
174 static int rx_copybreak = 200;
175 static int use_dac;
176 static struct {
177 u32 msg_enable;
178 } debug = { -1 };
179
180 enum rtl_registers {
181 MAC0 = 0, /* Ethernet hardware address. */
182 MAC4 = 4,
183 MAR0 = 8, /* Multicast filter. */
184 CounterAddrLow = 0x10,
185 CounterAddrHigh = 0x14,
186 TxDescStartAddrLow = 0x20,
187 TxDescStartAddrHigh = 0x24,
188 TxHDescStartAddrLow = 0x28,
189 TxHDescStartAddrHigh = 0x2c,
190 FLASH = 0x30,
191 ERSR = 0x36,
192 ChipCmd = 0x37,
193 TxPoll = 0x38,
194 IntrMask = 0x3c,
195 IntrStatus = 0x3e,
196 TxConfig = 0x40,
197 RxConfig = 0x44,
198 RxMissed = 0x4c,
199 Cfg9346 = 0x50,
200 Config0 = 0x51,
201 Config1 = 0x52,
202 Config2 = 0x53,
203 Config3 = 0x54,
204 Config4 = 0x55,
205 Config5 = 0x56,
206 MultiIntr = 0x5c,
207 PHYAR = 0x60,
208 PHYstatus = 0x6c,
209 RxMaxSize = 0xda,
210 CPlusCmd = 0xe0,
211 IntrMitigate = 0xe2,
212 RxDescAddrLow = 0xe4,
213 RxDescAddrHigh = 0xe8,
214 EarlyTxThres = 0xec,
215 FuncEvent = 0xf0,
216 FuncEventMask = 0xf4,
217 FuncPresetState = 0xf8,
218 FuncForceEvent = 0xfc,
219 };
220
221 enum rtl8110_registers {
222 TBICSR = 0x64,
223 TBI_ANAR = 0x68,
224 TBI_LPAR = 0x6a,
225 };
226
227 enum rtl8168_8101_registers {
228 CSIDR = 0x64,
229 CSIAR = 0x68,
230 #define CSIAR_FLAG 0x80000000
231 #define CSIAR_WRITE_CMD 0x80000000
232 #define CSIAR_BYTE_ENABLE 0x0f
233 #define CSIAR_BYTE_ENABLE_SHIFT 12
234 #define CSIAR_ADDR_MASK 0x0fff
235
236 EPHYAR = 0x80,
237 #define EPHYAR_FLAG 0x80000000
238 #define EPHYAR_WRITE_CMD 0x80000000
239 #define EPHYAR_REG_MASK 0x1f
240 #define EPHYAR_REG_SHIFT 16
241 #define EPHYAR_DATA_MASK 0xffff
242 DBG_REG = 0xd1,
243 #define FIX_NAK_1 (1 << 4)
244 #define FIX_NAK_2 (1 << 3)
245 };
246
247 enum rtl_register_content {
248 /* InterruptStatusBits */
249 SYSErr = 0x8000,
250 PCSTimeout = 0x4000,
251 SWInt = 0x0100,
252 TxDescUnavail = 0x0080,
253 RxFIFOOver = 0x0040,
254 LinkChg = 0x0020,
255 RxOverflow = 0x0010,
256 TxErr = 0x0008,
257 TxOK = 0x0004,
258 RxErr = 0x0002,
259 RxOK = 0x0001,
260
261 /* RxStatusDesc */
262 RxFOVF = (1 << 23),
263 RxRWT = (1 << 22),
264 RxRES = (1 << 21),
265 RxRUNT = (1 << 20),
266 RxCRC = (1 << 19),
267
268 /* ChipCmdBits */
269 CmdReset = 0x10,
270 CmdRxEnb = 0x08,
271 CmdTxEnb = 0x04,
272 RxBufEmpty = 0x01,
273
274 /* TXPoll register p.5 */
275 HPQ = 0x80, /* Poll cmd on the high prio queue */
276 NPQ = 0x40, /* Poll cmd on the low prio queue */
277 FSWInt = 0x01, /* Forced software interrupt */
278
279 /* Cfg9346Bits */
280 Cfg9346_Lock = 0x00,
281 Cfg9346_Unlock = 0xc0,
282
283 /* rx_mode_bits */
284 AcceptErr = 0x20,
285 AcceptRunt = 0x10,
286 AcceptBroadcast = 0x08,
287 AcceptMulticast = 0x04,
288 AcceptMyPhys = 0x02,
289 AcceptAllPhys = 0x01,
290
291 /* RxConfigBits */
292 RxCfgFIFOShift = 13,
293 RxCfgDMAShift = 8,
294
295 /* TxConfigBits */
296 TxInterFrameGapShift = 24,
297 TxDMAShift = 8, /* DMA burst value (0-7) is shift this many bits */
298
299 /* Config1 register p.24 */
300 LEDS1 = (1 << 7),
301 LEDS0 = (1 << 6),
302 MSIEnable = (1 << 5), /* Enable Message Signaled Interrupt */
303 Speed_down = (1 << 4),
304 MEMMAP = (1 << 3),
305 IOMAP = (1 << 2),
306 VPD = (1 << 1),
307 PMEnable = (1 << 0), /* Power Management Enable */
308
309 /* Config2 register p. 25 */
310 PCI_Clock_66MHz = 0x01,
311 PCI_Clock_33MHz = 0x00,
312
313 /* Config3 register p.25 */
314 MagicPacket = (1 << 5), /* Wake up when receives a Magic Packet */
315 LinkUp = (1 << 4), /* Wake up when the cable connection is re-established */
316 Beacon_en = (1 << 0), /* 8168 only. Reserved in the 8168b */
317
318 /* Config5 register p.27 */
319 BWF = (1 << 6), /* Accept Broadcast wakeup frame */
320 MWF = (1 << 5), /* Accept Multicast wakeup frame */
321 UWF = (1 << 4), /* Accept Unicast wakeup frame */
322 LanWake = (1 << 1), /* LanWake enable/disable */
323 PMEStatus = (1 << 0), /* PME status can be reset by PCI RST# */
324
325 /* TBICSR p.28 */
326 TBIReset = 0x80000000,
327 TBILoopback = 0x40000000,
328 TBINwEnable = 0x20000000,
329 TBINwRestart = 0x10000000,
330 TBILinkOk = 0x02000000,
331 TBINwComplete = 0x01000000,
332
333 /* CPlusCmd p.31 */
334 EnableBist = (1 << 15), // 8168 8101
335 Mac_dbgo_oe = (1 << 14), // 8168 8101
336 Normal_mode = (1 << 13), // unused
337 Force_half_dup = (1 << 12), // 8168 8101
338 Force_rxflow_en = (1 << 11), // 8168 8101
339 Force_txflow_en = (1 << 10), // 8168 8101
340 Cxpl_dbg_sel = (1 << 9), // 8168 8101
341 ASF = (1 << 8), // 8168 8101
342 PktCntrDisable = (1 << 7), // 8168 8101
343 Mac_dbgo_sel = 0x001c, // 8168
344 RxVlan = (1 << 6),
345 RxChkSum = (1 << 5),
346 PCIDAC = (1 << 4),
347 PCIMulRW = (1 << 3),
348 INTT_0 = 0x0000, // 8168
349 INTT_1 = 0x0001, // 8168
350 INTT_2 = 0x0002, // 8168
351 INTT_3 = 0x0003, // 8168
352
353 /* rtl8169_PHYstatus */
354 TBI_Enable = 0x80,
355 TxFlowCtrl = 0x40,
356 RxFlowCtrl = 0x20,
357 _1000bpsF = 0x10,
358 _100bps = 0x08,
359 _10bps = 0x04,
360 LinkStatus = 0x02,
361 FullDup = 0x01,
362
363 /* _TBICSRBit */
364 TBILinkOK = 0x02000000,
365
366 /* DumpCounterCommand */
367 CounterDump = 0x8,
368 };
369
370 enum desc_status_bit {
371 DescOwn = (1 << 31), /* Descriptor is owned by NIC */
372 RingEnd = (1 << 30), /* End of descriptor ring */
373 FirstFrag = (1 << 29), /* First segment of a packet */
374 LastFrag = (1 << 28), /* Final segment of a packet */
375
376 /* Tx private */
377 LargeSend = (1 << 27), /* TCP Large Send Offload (TSO) */
378 MSSShift = 16, /* MSS value position */
379 MSSMask = 0xfff, /* MSS value + LargeSend bit: 12 bits */
380 IPCS = (1 << 18), /* Calculate IP checksum */
381 UDPCS = (1 << 17), /* Calculate UDP/IP checksum */
382 TCPCS = (1 << 16), /* Calculate TCP/IP checksum */
383 TxVlanTag = (1 << 17), /* Add VLAN tag */
384
385 /* Rx private */
386 PID1 = (1 << 18), /* Protocol ID bit 1/2 */
387 PID0 = (1 << 17), /* Protocol ID bit 2/2 */
388
389 #define RxProtoUDP (PID1)
390 #define RxProtoTCP (PID0)
391 #define RxProtoIP (PID1 | PID0)
392 #define RxProtoMask RxProtoIP
393
394 IPFail = (1 << 16), /* IP checksum failed */
395 UDPFail = (1 << 15), /* UDP/IP checksum failed */
396 TCPFail = (1 << 14), /* TCP/IP checksum failed */
397 RxVlanTag = (1 << 16), /* VLAN tag available */
398 };
399
400 #define RsvdMask 0x3fffc000
401
402 struct TxDesc {
403 __le32 opts1;
404 __le32 opts2;
405 __le64 addr;
406 };
407
408 struct RxDesc {
409 __le32 opts1;
410 __le32 opts2;
411 __le64 addr;
412 };
413
414 struct ring_info {
415 struct sk_buff *skb;
416 u32 len;
417 u8 __pad[sizeof(void *) - sizeof(u32)];
418 };
419
420 enum features {
421 RTL_FEATURE_WOL = (1 << 0),
422 RTL_FEATURE_MSI = (1 << 1),
423 RTL_FEATURE_GMII = (1 << 2),
424 };
425
426 struct rtl8169_private {
427 void __iomem *mmio_addr; /* memory map physical address */
428 struct pci_dev *pci_dev; /* Index of PCI device */
429 struct net_device *dev;
430 struct napi_struct napi;
431 spinlock_t lock; /* spin lock flag */
432 u32 msg_enable;
433 int chipset;
434 int mac_version;
435 u32 cur_rx; /* Index into the Rx descriptor buffer of next Rx pkt. */
436 u32 cur_tx; /* Index into the Tx descriptor buffer of next Rx pkt. */
437 u32 dirty_rx;
438 u32 dirty_tx;
439 struct TxDesc *TxDescArray; /* 256-aligned Tx descriptor ring */
440 struct RxDesc *RxDescArray; /* 256-aligned Rx descriptor ring */
441 dma_addr_t TxPhyAddr;
442 dma_addr_t RxPhyAddr;
443 struct sk_buff *Rx_skbuff[NUM_RX_DESC]; /* Rx data buffers */
444 struct ring_info tx_skb[NUM_TX_DESC]; /* Tx data buffers */
445 unsigned align;
446 unsigned rx_buf_sz;
447 struct timer_list timer;
448 u16 cp_cmd;
449 u16 intr_event;
450 u16 napi_event;
451 u16 intr_mask;
452 int phy_auto_nego_reg;
453 int phy_1000_ctrl_reg;
454 #ifdef CONFIG_R8169_VLAN
455 struct vlan_group *vlgrp;
456 #endif
457 int (*set_speed)(struct net_device *, u8 autoneg, u16 speed, u8 duplex);
458 int (*get_settings)(struct net_device *, struct ethtool_cmd *);
459 void (*phy_reset_enable)(void __iomem *);
460 void (*hw_start)(struct net_device *);
461 unsigned int (*phy_reset_pending)(void __iomem *);
462 unsigned int (*link_ok)(void __iomem *);
463 int pcie_cap;
464 struct delayed_work task;
465 unsigned features;
466
467 struct mii_if_info mii;
468 };
469
470 MODULE_AUTHOR("Realtek and the Linux r8169 crew <netdev@vger.kernel.org>");
471 MODULE_DESCRIPTION("RealTek RTL-8169 Gigabit Ethernet driver");
472 module_param(rx_copybreak, int, 0);
473 MODULE_PARM_DESC(rx_copybreak, "Copy breakpoint for copy-only-tiny-frames");
474 module_param(use_dac, int, 0);
475 MODULE_PARM_DESC(use_dac, "Enable PCI DAC. Unsafe on 32 bit PCI slot.");
476 module_param_named(debug, debug.msg_enable, int, 0);
477 MODULE_PARM_DESC(debug, "Debug verbosity level (0=none, ..., 16=all)");
478 MODULE_LICENSE("GPL");
479 MODULE_VERSION(RTL8169_VERSION);
480
481 static int rtl8169_open(struct net_device *dev);
482 static int rtl8169_start_xmit(struct sk_buff *skb, struct net_device *dev);
483 static irqreturn_t rtl8169_interrupt(int irq, void *dev_instance);
484 static int rtl8169_init_ring(struct net_device *dev);
485 static void rtl_hw_start(struct net_device *dev);
486 static int rtl8169_close(struct net_device *dev);
487 static void rtl_set_rx_mode(struct net_device *dev);
488 static void rtl8169_tx_timeout(struct net_device *dev);
489 static struct net_device_stats *rtl8169_get_stats(struct net_device *dev);
490 static int rtl8169_rx_interrupt(struct net_device *, struct rtl8169_private *,
491 void __iomem *, u32 budget);
492 static int rtl8169_change_mtu(struct net_device *dev, int new_mtu);
493 static void rtl8169_down(struct net_device *dev);
494 static void rtl8169_rx_clear(struct rtl8169_private *tp);
495 static int rtl8169_poll(struct napi_struct *napi, int budget);
496
497 static const unsigned int rtl8169_rx_config =
498 (RX_FIFO_THRESH << RxCfgFIFOShift) | (RX_DMA_BURST << RxCfgDMAShift);
499
500 static void mdio_write(void __iomem *ioaddr, int reg_addr, int value)
501 {
502 int i;
503
504 RTL_W32(PHYAR, 0x80000000 | (reg_addr & 0x1f) << 16 | (value & 0xffff));
505
506 for (i = 20; i > 0; i--) {
507 /*
508 * Check if the RTL8169 has completed writing to the specified
509 * MII register.
510 */
511 if (!(RTL_R32(PHYAR) & 0x80000000))
512 break;
513 udelay(25);
514 }
515 }
516
517 static int mdio_read(void __iomem *ioaddr, int reg_addr)
518 {
519 int i, value = -1;
520
521 RTL_W32(PHYAR, 0x0 | (reg_addr & 0x1f) << 16);
522
523 for (i = 20; i > 0; i--) {
524 /*
525 * Check if the RTL8169 has completed retrieving data from
526 * the specified MII register.
527 */
528 if (RTL_R32(PHYAR) & 0x80000000) {
529 value = RTL_R32(PHYAR) & 0xffff;
530 break;
531 }
532 udelay(25);
533 }
534 return value;
535 }
536
537 static void mdio_patch(void __iomem *ioaddr, int reg_addr, int value)
538 {
539 mdio_write(ioaddr, reg_addr, mdio_read(ioaddr, reg_addr) | value);
540 }
541
542 static void rtl_mdio_write(struct net_device *dev, int phy_id, int location,
543 int val)
544 {
545 struct rtl8169_private *tp = netdev_priv(dev);
546 void __iomem *ioaddr = tp->mmio_addr;
547
548 mdio_write(ioaddr, location, val);
549 }
550
551 static int rtl_mdio_read(struct net_device *dev, int phy_id, int location)
552 {
553 struct rtl8169_private *tp = netdev_priv(dev);
554 void __iomem *ioaddr = tp->mmio_addr;
555
556 return mdio_read(ioaddr, location);
557 }
558
559 static void rtl_ephy_write(void __iomem *ioaddr, int reg_addr, int value)
560 {
561 unsigned int i;
562
563 RTL_W32(EPHYAR, EPHYAR_WRITE_CMD | (value & EPHYAR_DATA_MASK) |
564 (reg_addr & EPHYAR_REG_MASK) << EPHYAR_REG_SHIFT);
565
566 for (i = 0; i < 100; i++) {
567 if (!(RTL_R32(EPHYAR) & EPHYAR_FLAG))
568 break;
569 udelay(10);
570 }
571 }
572
573 static u16 rtl_ephy_read(void __iomem *ioaddr, int reg_addr)
574 {
575 u16 value = 0xffff;
576 unsigned int i;
577
578 RTL_W32(EPHYAR, (reg_addr & EPHYAR_REG_MASK) << EPHYAR_REG_SHIFT);
579
580 for (i = 0; i < 100; i++) {
581 if (RTL_R32(EPHYAR) & EPHYAR_FLAG) {
582 value = RTL_R32(EPHYAR) & EPHYAR_DATA_MASK;
583 break;
584 }
585 udelay(10);
586 }
587
588 return value;
589 }
590
591 static void rtl_csi_write(void __iomem *ioaddr, int addr, int value)
592 {
593 unsigned int i;
594
595 RTL_W32(CSIDR, value);
596 RTL_W32(CSIAR, CSIAR_WRITE_CMD | (addr & CSIAR_ADDR_MASK) |
597 CSIAR_BYTE_ENABLE << CSIAR_BYTE_ENABLE_SHIFT);
598
599 for (i = 0; i < 100; i++) {
600 if (!(RTL_R32(CSIAR) & CSIAR_FLAG))
601 break;
602 udelay(10);
603 }
604 }
605
606 static u32 rtl_csi_read(void __iomem *ioaddr, int addr)
607 {
608 u32 value = ~0x00;
609 unsigned int i;
610
611 RTL_W32(CSIAR, (addr & CSIAR_ADDR_MASK) |
612 CSIAR_BYTE_ENABLE << CSIAR_BYTE_ENABLE_SHIFT);
613
614 for (i = 0; i < 100; i++) {
615 if (RTL_R32(CSIAR) & CSIAR_FLAG) {
616 value = RTL_R32(CSIDR);
617 break;
618 }
619 udelay(10);
620 }
621
622 return value;
623 }
624
625 static void rtl8169_irq_mask_and_ack(void __iomem *ioaddr)
626 {
627 RTL_W16(IntrMask, 0x0000);
628
629 RTL_W16(IntrStatus, 0xffff);
630 }
631
632 static void rtl8169_asic_down(void __iomem *ioaddr)
633 {
634 RTL_W8(ChipCmd, 0x00);
635 rtl8169_irq_mask_and_ack(ioaddr);
636 RTL_R16(CPlusCmd);
637 }
638
639 static unsigned int rtl8169_tbi_reset_pending(void __iomem *ioaddr)
640 {
641 return RTL_R32(TBICSR) & TBIReset;
642 }
643
644 static unsigned int rtl8169_xmii_reset_pending(void __iomem *ioaddr)
645 {
646 return mdio_read(ioaddr, MII_BMCR) & BMCR_RESET;
647 }
648
649 static unsigned int rtl8169_tbi_link_ok(void __iomem *ioaddr)
650 {
651 return RTL_R32(TBICSR) & TBILinkOk;
652 }
653
654 static unsigned int rtl8169_xmii_link_ok(void __iomem *ioaddr)
655 {
656 return RTL_R8(PHYstatus) & LinkStatus;
657 }
658
659 static void rtl8169_tbi_reset_enable(void __iomem *ioaddr)
660 {
661 RTL_W32(TBICSR, RTL_R32(TBICSR) | TBIReset);
662 }
663
664 static void rtl8169_xmii_reset_enable(void __iomem *ioaddr)
665 {
666 unsigned int val;
667
668 val = mdio_read(ioaddr, MII_BMCR) | BMCR_RESET;
669 mdio_write(ioaddr, MII_BMCR, val & 0xffff);
670 }
671
672 static void rtl8169_check_link_status(struct net_device *dev,
673 struct rtl8169_private *tp,
674 void __iomem *ioaddr)
675 {
676 unsigned long flags;
677
678 spin_lock_irqsave(&tp->lock, flags);
679 if (tp->link_ok(ioaddr)) {
680 netif_carrier_on(dev);
681 if (netif_msg_ifup(tp))
682 printk(KERN_INFO PFX "%s: link up\n", dev->name);
683 } else {
684 if (netif_msg_ifdown(tp))
685 printk(KERN_INFO PFX "%s: link down\n", dev->name);
686 netif_carrier_off(dev);
687 }
688 spin_unlock_irqrestore(&tp->lock, flags);
689 }
690
691 static void rtl8169_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
692 {
693 struct rtl8169_private *tp = netdev_priv(dev);
694 void __iomem *ioaddr = tp->mmio_addr;
695 u8 options;
696
697 wol->wolopts = 0;
698
699 #define WAKE_ANY (WAKE_PHY | WAKE_MAGIC | WAKE_UCAST | WAKE_BCAST | WAKE_MCAST)
700 wol->supported = WAKE_ANY;
701
702 spin_lock_irq(&tp->lock);
703
704 options = RTL_R8(Config1);
705 if (!(options & PMEnable))
706 goto out_unlock;
707
708 options = RTL_R8(Config3);
709 if (options & LinkUp)
710 wol->wolopts |= WAKE_PHY;
711 if (options & MagicPacket)
712 wol->wolopts |= WAKE_MAGIC;
713
714 options = RTL_R8(Config5);
715 if (options & UWF)
716 wol->wolopts |= WAKE_UCAST;
717 if (options & BWF)
718 wol->wolopts |= WAKE_BCAST;
719 if (options & MWF)
720 wol->wolopts |= WAKE_MCAST;
721
722 out_unlock:
723 spin_unlock_irq(&tp->lock);
724 }
725
726 static int rtl8169_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
727 {
728 struct rtl8169_private *tp = netdev_priv(dev);
729 void __iomem *ioaddr = tp->mmio_addr;
730 unsigned int i;
731 static struct {
732 u32 opt;
733 u16 reg;
734 u8 mask;
735 } cfg[] = {
736 { WAKE_ANY, Config1, PMEnable },
737 { WAKE_PHY, Config3, LinkUp },
738 { WAKE_MAGIC, Config3, MagicPacket },
739 { WAKE_UCAST, Config5, UWF },
740 { WAKE_BCAST, Config5, BWF },
741 { WAKE_MCAST, Config5, MWF },
742 { WAKE_ANY, Config5, LanWake }
743 };
744
745 spin_lock_irq(&tp->lock);
746
747 RTL_W8(Cfg9346, Cfg9346_Unlock);
748
749 for (i = 0; i < ARRAY_SIZE(cfg); i++) {
750 u8 options = RTL_R8(cfg[i].reg) & ~cfg[i].mask;
751 if (wol->wolopts & cfg[i].opt)
752 options |= cfg[i].mask;
753 RTL_W8(cfg[i].reg, options);
754 }
755
756 RTL_W8(Cfg9346, Cfg9346_Lock);
757
758 if (wol->wolopts)
759 tp->features |= RTL_FEATURE_WOL;
760 else
761 tp->features &= ~RTL_FEATURE_WOL;
762 device_set_wakeup_enable(&tp->pci_dev->dev, wol->wolopts);
763
764 spin_unlock_irq(&tp->lock);
765
766 return 0;
767 }
768
769 static void rtl8169_get_drvinfo(struct net_device *dev,
770 struct ethtool_drvinfo *info)
771 {
772 struct rtl8169_private *tp = netdev_priv(dev);
773
774 strcpy(info->driver, MODULENAME);
775 strcpy(info->version, RTL8169_VERSION);
776 strcpy(info->bus_info, pci_name(tp->pci_dev));
777 }
778
779 static int rtl8169_get_regs_len(struct net_device *dev)
780 {
781 return R8169_REGS_SIZE;
782 }
783
784 static int rtl8169_set_speed_tbi(struct net_device *dev,
785 u8 autoneg, u16 speed, u8 duplex)
786 {
787 struct rtl8169_private *tp = netdev_priv(dev);
788 void __iomem *ioaddr = tp->mmio_addr;
789 int ret = 0;
790 u32 reg;
791
792 reg = RTL_R32(TBICSR);
793 if ((autoneg == AUTONEG_DISABLE) && (speed == SPEED_1000) &&
794 (duplex == DUPLEX_FULL)) {
795 RTL_W32(TBICSR, reg & ~(TBINwEnable | TBINwRestart));
796 } else if (autoneg == AUTONEG_ENABLE)
797 RTL_W32(TBICSR, reg | TBINwEnable | TBINwRestart);
798 else {
799 if (netif_msg_link(tp)) {
800 printk(KERN_WARNING "%s: "
801 "incorrect speed setting refused in TBI mode\n",
802 dev->name);
803 }
804 ret = -EOPNOTSUPP;
805 }
806
807 return ret;
808 }
809
810 static int rtl8169_set_speed_xmii(struct net_device *dev,
811 u8 autoneg, u16 speed, u8 duplex)
812 {
813 struct rtl8169_private *tp = netdev_priv(dev);
814 void __iomem *ioaddr = tp->mmio_addr;
815 int auto_nego, giga_ctrl;
816
817 auto_nego = mdio_read(ioaddr, MII_ADVERTISE);
818 auto_nego &= ~(ADVERTISE_10HALF | ADVERTISE_10FULL |
819 ADVERTISE_100HALF | ADVERTISE_100FULL);
820 giga_ctrl = mdio_read(ioaddr, MII_CTRL1000);
821 giga_ctrl &= ~(ADVERTISE_1000FULL | ADVERTISE_1000HALF);
822
823 if (autoneg == AUTONEG_ENABLE) {
824 auto_nego |= (ADVERTISE_10HALF | ADVERTISE_10FULL |
825 ADVERTISE_100HALF | ADVERTISE_100FULL);
826 giga_ctrl |= ADVERTISE_1000FULL | ADVERTISE_1000HALF;
827 } else {
828 if (speed == SPEED_10)
829 auto_nego |= ADVERTISE_10HALF | ADVERTISE_10FULL;
830 else if (speed == SPEED_100)
831 auto_nego |= ADVERTISE_100HALF | ADVERTISE_100FULL;
832 else if (speed == SPEED_1000)
833 giga_ctrl |= ADVERTISE_1000FULL | ADVERTISE_1000HALF;
834
835 if (duplex == DUPLEX_HALF)
836 auto_nego &= ~(ADVERTISE_10FULL | ADVERTISE_100FULL);
837
838 if (duplex == DUPLEX_FULL)
839 auto_nego &= ~(ADVERTISE_10HALF | ADVERTISE_100HALF);
840
841 /* This tweak comes straight from Realtek's driver. */
842 if ((speed == SPEED_100) && (duplex == DUPLEX_HALF) &&
843 ((tp->mac_version == RTL_GIGA_MAC_VER_13) ||
844 (tp->mac_version == RTL_GIGA_MAC_VER_16))) {
845 auto_nego = ADVERTISE_100HALF | ADVERTISE_CSMA;
846 }
847 }
848
849 /* The 8100e/8101e/8102e do Fast Ethernet only. */
850 if ((tp->mac_version == RTL_GIGA_MAC_VER_07) ||
851 (tp->mac_version == RTL_GIGA_MAC_VER_08) ||
852 (tp->mac_version == RTL_GIGA_MAC_VER_09) ||
853 (tp->mac_version == RTL_GIGA_MAC_VER_10) ||
854 (tp->mac_version == RTL_GIGA_MAC_VER_13) ||
855 (tp->mac_version == RTL_GIGA_MAC_VER_14) ||
856 (tp->mac_version == RTL_GIGA_MAC_VER_15) ||
857 (tp->mac_version == RTL_GIGA_MAC_VER_16)) {
858 if ((giga_ctrl & (ADVERTISE_1000FULL | ADVERTISE_1000HALF)) &&
859 netif_msg_link(tp)) {
860 printk(KERN_INFO "%s: PHY does not support 1000Mbps.\n",
861 dev->name);
862 }
863 giga_ctrl &= ~(ADVERTISE_1000FULL | ADVERTISE_1000HALF);
864 }
865
866 auto_nego |= ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM;
867
868 if ((tp->mac_version == RTL_GIGA_MAC_VER_11) ||
869 (tp->mac_version == RTL_GIGA_MAC_VER_12) ||
870 (tp->mac_version >= RTL_GIGA_MAC_VER_17)) {
871 /*
872 * Wake up the PHY.
873 * Vendor specific (0x1f) and reserved (0x0e) MII registers.
874 */
875 mdio_write(ioaddr, 0x1f, 0x0000);
876 mdio_write(ioaddr, 0x0e, 0x0000);
877 }
878
879 tp->phy_auto_nego_reg = auto_nego;
880 tp->phy_1000_ctrl_reg = giga_ctrl;
881
882 mdio_write(ioaddr, MII_ADVERTISE, auto_nego);
883 mdio_write(ioaddr, MII_CTRL1000, giga_ctrl);
884 mdio_write(ioaddr, MII_BMCR, BMCR_ANENABLE | BMCR_ANRESTART);
885 return 0;
886 }
887
888 static int rtl8169_set_speed(struct net_device *dev,
889 u8 autoneg, u16 speed, u8 duplex)
890 {
891 struct rtl8169_private *tp = netdev_priv(dev);
892 int ret;
893
894 ret = tp->set_speed(dev, autoneg, speed, duplex);
895
896 if (netif_running(dev) && (tp->phy_1000_ctrl_reg & ADVERTISE_1000FULL))
897 mod_timer(&tp->timer, jiffies + RTL8169_PHY_TIMEOUT);
898
899 return ret;
900 }
901
902 static int rtl8169_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
903 {
904 struct rtl8169_private *tp = netdev_priv(dev);
905 unsigned long flags;
906 int ret;
907
908 spin_lock_irqsave(&tp->lock, flags);
909 ret = rtl8169_set_speed(dev, cmd->autoneg, cmd->speed, cmd->duplex);
910 spin_unlock_irqrestore(&tp->lock, flags);
911
912 return ret;
913 }
914
915 static u32 rtl8169_get_rx_csum(struct net_device *dev)
916 {
917 struct rtl8169_private *tp = netdev_priv(dev);
918
919 return tp->cp_cmd & RxChkSum;
920 }
921
922 static int rtl8169_set_rx_csum(struct net_device *dev, u32 data)
923 {
924 struct rtl8169_private *tp = netdev_priv(dev);
925 void __iomem *ioaddr = tp->mmio_addr;
926 unsigned long flags;
927
928 spin_lock_irqsave(&tp->lock, flags);
929
930 if (data)
931 tp->cp_cmd |= RxChkSum;
932 else
933 tp->cp_cmd &= ~RxChkSum;
934
935 RTL_W16(CPlusCmd, tp->cp_cmd);
936 RTL_R16(CPlusCmd);
937
938 spin_unlock_irqrestore(&tp->lock, flags);
939
940 return 0;
941 }
942
943 #ifdef CONFIG_R8169_VLAN
944
945 static inline u32 rtl8169_tx_vlan_tag(struct rtl8169_private *tp,
946 struct sk_buff *skb)
947 {
948 return (tp->vlgrp && vlan_tx_tag_present(skb)) ?
949 TxVlanTag | swab16(vlan_tx_tag_get(skb)) : 0x00;
950 }
951
952 static void rtl8169_vlan_rx_register(struct net_device *dev,
953 struct vlan_group *grp)
954 {
955 struct rtl8169_private *tp = netdev_priv(dev);
956 void __iomem *ioaddr = tp->mmio_addr;
957 unsigned long flags;
958
959 spin_lock_irqsave(&tp->lock, flags);
960 tp->vlgrp = grp;
961 if (tp->vlgrp)
962 tp->cp_cmd |= RxVlan;
963 else
964 tp->cp_cmd &= ~RxVlan;
965 RTL_W16(CPlusCmd, tp->cp_cmd);
966 RTL_R16(CPlusCmd);
967 spin_unlock_irqrestore(&tp->lock, flags);
968 }
969
970 static int rtl8169_rx_vlan_skb(struct rtl8169_private *tp, struct RxDesc *desc,
971 struct sk_buff *skb)
972 {
973 u32 opts2 = le32_to_cpu(desc->opts2);
974 struct vlan_group *vlgrp = tp->vlgrp;
975 int ret;
976
977 if (vlgrp && (opts2 & RxVlanTag)) {
978 vlan_hwaccel_receive_skb(skb, vlgrp, swab16(opts2 & 0xffff));
979 ret = 0;
980 } else
981 ret = -1;
982 desc->opts2 = 0;
983 return ret;
984 }
985
986 #else /* !CONFIG_R8169_VLAN */
987
988 static inline u32 rtl8169_tx_vlan_tag(struct rtl8169_private *tp,
989 struct sk_buff *skb)
990 {
991 return 0;
992 }
993
994 static int rtl8169_rx_vlan_skb(struct rtl8169_private *tp, struct RxDesc *desc,
995 struct sk_buff *skb)
996 {
997 return -1;
998 }
999
1000 #endif
1001
1002 static int rtl8169_gset_tbi(struct net_device *dev, struct ethtool_cmd *cmd)
1003 {
1004 struct rtl8169_private *tp = netdev_priv(dev);
1005 void __iomem *ioaddr = tp->mmio_addr;
1006 u32 status;
1007
1008 cmd->supported =
1009 SUPPORTED_1000baseT_Full | SUPPORTED_Autoneg | SUPPORTED_FIBRE;
1010 cmd->port = PORT_FIBRE;
1011 cmd->transceiver = XCVR_INTERNAL;
1012
1013 status = RTL_R32(TBICSR);
1014 cmd->advertising = (status & TBINwEnable) ? ADVERTISED_Autoneg : 0;
1015 cmd->autoneg = !!(status & TBINwEnable);
1016
1017 cmd->speed = SPEED_1000;
1018 cmd->duplex = DUPLEX_FULL; /* Always set */
1019
1020 return 0;
1021 }
1022
1023 static int rtl8169_gset_xmii(struct net_device *dev, struct ethtool_cmd *cmd)
1024 {
1025 struct rtl8169_private *tp = netdev_priv(dev);
1026
1027 return mii_ethtool_gset(&tp->mii, cmd);
1028 }
1029
1030 static int rtl8169_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
1031 {
1032 struct rtl8169_private *tp = netdev_priv(dev);
1033 unsigned long flags;
1034 int rc;
1035
1036 spin_lock_irqsave(&tp->lock, flags);
1037
1038 rc = tp->get_settings(dev, cmd);
1039
1040 spin_unlock_irqrestore(&tp->lock, flags);
1041 return rc;
1042 }
1043
1044 static void rtl8169_get_regs(struct net_device *dev, struct ethtool_regs *regs,
1045 void *p)
1046 {
1047 struct rtl8169_private *tp = netdev_priv(dev);
1048 unsigned long flags;
1049
1050 if (regs->len > R8169_REGS_SIZE)
1051 regs->len = R8169_REGS_SIZE;
1052
1053 spin_lock_irqsave(&tp->lock, flags);
1054 memcpy_fromio(p, tp->mmio_addr, regs->len);
1055 spin_unlock_irqrestore(&tp->lock, flags);
1056 }
1057
1058 static u32 rtl8169_get_msglevel(struct net_device *dev)
1059 {
1060 struct rtl8169_private *tp = netdev_priv(dev);
1061
1062 return tp->msg_enable;
1063 }
1064
1065 static void rtl8169_set_msglevel(struct net_device *dev, u32 value)
1066 {
1067 struct rtl8169_private *tp = netdev_priv(dev);
1068
1069 tp->msg_enable = value;
1070 }
1071
1072 static const char rtl8169_gstrings[][ETH_GSTRING_LEN] = {
1073 "tx_packets",
1074 "rx_packets",
1075 "tx_errors",
1076 "rx_errors",
1077 "rx_missed",
1078 "align_errors",
1079 "tx_single_collisions",
1080 "tx_multi_collisions",
1081 "unicast",
1082 "broadcast",
1083 "multicast",
1084 "tx_aborted",
1085 "tx_underrun",
1086 };
1087
1088 struct rtl8169_counters {
1089 __le64 tx_packets;
1090 __le64 rx_packets;
1091 __le64 tx_errors;
1092 __le32 rx_errors;
1093 __le16 rx_missed;
1094 __le16 align_errors;
1095 __le32 tx_one_collision;
1096 __le32 tx_multi_collision;
1097 __le64 rx_unicast;
1098 __le64 rx_broadcast;
1099 __le32 rx_multicast;
1100 __le16 tx_aborted;
1101 __le16 tx_underun;
1102 };
1103
1104 static int rtl8169_get_sset_count(struct net_device *dev, int sset)
1105 {
1106 switch (sset) {
1107 case ETH_SS_STATS:
1108 return ARRAY_SIZE(rtl8169_gstrings);
1109 default:
1110 return -EOPNOTSUPP;
1111 }
1112 }
1113
1114 static void rtl8169_get_ethtool_stats(struct net_device *dev,
1115 struct ethtool_stats *stats, u64 *data)
1116 {
1117 struct rtl8169_private *tp = netdev_priv(dev);
1118 void __iomem *ioaddr = tp->mmio_addr;
1119 struct rtl8169_counters *counters;
1120 dma_addr_t paddr;
1121 u32 cmd;
1122
1123 ASSERT_RTNL();
1124
1125 counters = pci_alloc_consistent(tp->pci_dev, sizeof(*counters), &paddr);
1126 if (!counters)
1127 return;
1128
1129 RTL_W32(CounterAddrHigh, (u64)paddr >> 32);
1130 cmd = (u64)paddr & DMA_32BIT_MASK;
1131 RTL_W32(CounterAddrLow, cmd);
1132 RTL_W32(CounterAddrLow, cmd | CounterDump);
1133
1134 while (RTL_R32(CounterAddrLow) & CounterDump) {
1135 if (msleep_interruptible(1))
1136 break;
1137 }
1138
1139 RTL_W32(CounterAddrLow, 0);
1140 RTL_W32(CounterAddrHigh, 0);
1141
1142 data[0] = le64_to_cpu(counters->tx_packets);
1143 data[1] = le64_to_cpu(counters->rx_packets);
1144 data[2] = le64_to_cpu(counters->tx_errors);
1145 data[3] = le32_to_cpu(counters->rx_errors);
1146 data[4] = le16_to_cpu(counters->rx_missed);
1147 data[5] = le16_to_cpu(counters->align_errors);
1148 data[6] = le32_to_cpu(counters->tx_one_collision);
1149 data[7] = le32_to_cpu(counters->tx_multi_collision);
1150 data[8] = le64_to_cpu(counters->rx_unicast);
1151 data[9] = le64_to_cpu(counters->rx_broadcast);
1152 data[10] = le32_to_cpu(counters->rx_multicast);
1153 data[11] = le16_to_cpu(counters->tx_aborted);
1154 data[12] = le16_to_cpu(counters->tx_underun);
1155
1156 pci_free_consistent(tp->pci_dev, sizeof(*counters), counters, paddr);
1157 }
1158
1159 static void rtl8169_get_strings(struct net_device *dev, u32 stringset, u8 *data)
1160 {
1161 switch(stringset) {
1162 case ETH_SS_STATS:
1163 memcpy(data, *rtl8169_gstrings, sizeof(rtl8169_gstrings));
1164 break;
1165 }
1166 }
1167
1168 static const struct ethtool_ops rtl8169_ethtool_ops = {
1169 .get_drvinfo = rtl8169_get_drvinfo,
1170 .get_regs_len = rtl8169_get_regs_len,
1171 .get_link = ethtool_op_get_link,
1172 .get_settings = rtl8169_get_settings,
1173 .set_settings = rtl8169_set_settings,
1174 .get_msglevel = rtl8169_get_msglevel,
1175 .set_msglevel = rtl8169_set_msglevel,
1176 .get_rx_csum = rtl8169_get_rx_csum,
1177 .set_rx_csum = rtl8169_set_rx_csum,
1178 .set_tx_csum = ethtool_op_set_tx_csum,
1179 .set_sg = ethtool_op_set_sg,
1180 .set_tso = ethtool_op_set_tso,
1181 .get_regs = rtl8169_get_regs,
1182 .get_wol = rtl8169_get_wol,
1183 .set_wol = rtl8169_set_wol,
1184 .get_strings = rtl8169_get_strings,
1185 .get_sset_count = rtl8169_get_sset_count,
1186 .get_ethtool_stats = rtl8169_get_ethtool_stats,
1187 };
1188
1189 static void rtl8169_write_gmii_reg_bit(void __iomem *ioaddr, int reg,
1190 int bitnum, int bitval)
1191 {
1192 int val;
1193
1194 val = mdio_read(ioaddr, reg);
1195 val = (bitval == 1) ?
1196 val | (bitval << bitnum) : val & ~(0x0001 << bitnum);
1197 mdio_write(ioaddr, reg, val & 0xffff);
1198 }
1199
1200 static void rtl8169_get_mac_version(struct rtl8169_private *tp,
1201 void __iomem *ioaddr)
1202 {
1203 /*
1204 * The driver currently handles the 8168Bf and the 8168Be identically
1205 * but they can be identified more specifically through the test below
1206 * if needed:
1207 *
1208 * (RTL_R32(TxConfig) & 0x700000) == 0x500000 ? 8168Bf : 8168Be
1209 *
1210 * Same thing for the 8101Eb and the 8101Ec:
1211 *
1212 * (RTL_R32(TxConfig) & 0x700000) == 0x200000 ? 8101Eb : 8101Ec
1213 */
1214 const struct {
1215 u32 mask;
1216 u32 val;
1217 int mac_version;
1218 } mac_info[] = {
1219 /* 8168B family. */
1220 { 0x7c800000, 0x3c800000, RTL_GIGA_MAC_VER_18 },
1221 { 0x7cf00000, 0x3c000000, RTL_GIGA_MAC_VER_19 },
1222 { 0x7cf00000, 0x3c200000, RTL_GIGA_MAC_VER_20 },
1223 { 0x7c800000, 0x3c000000, RTL_GIGA_MAC_VER_20 },
1224
1225 /* 8168B family. */
1226 { 0x7cf00000, 0x38000000, RTL_GIGA_MAC_VER_12 },
1227 { 0x7cf00000, 0x38500000, RTL_GIGA_MAC_VER_17 },
1228 { 0x7c800000, 0x38000000, RTL_GIGA_MAC_VER_17 },
1229 { 0x7c800000, 0x30000000, RTL_GIGA_MAC_VER_11 },
1230
1231 /* 8101 family. */
1232 { 0x7cf00000, 0x34a00000, RTL_GIGA_MAC_VER_09 },
1233 { 0x7cf00000, 0x24a00000, RTL_GIGA_MAC_VER_09 },
1234 { 0x7cf00000, 0x34900000, RTL_GIGA_MAC_VER_08 },
1235 { 0x7cf00000, 0x24900000, RTL_GIGA_MAC_VER_08 },
1236 { 0x7cf00000, 0x34800000, RTL_GIGA_MAC_VER_07 },
1237 { 0x7cf00000, 0x24800000, RTL_GIGA_MAC_VER_07 },
1238 { 0x7cf00000, 0x34000000, RTL_GIGA_MAC_VER_13 },
1239 { 0x7cf00000, 0x34300000, RTL_GIGA_MAC_VER_10 },
1240 { 0x7cf00000, 0x34200000, RTL_GIGA_MAC_VER_16 },
1241 { 0x7c800000, 0x34800000, RTL_GIGA_MAC_VER_09 },
1242 { 0x7c800000, 0x24800000, RTL_GIGA_MAC_VER_09 },
1243 { 0x7c800000, 0x34000000, RTL_GIGA_MAC_VER_16 },
1244 /* FIXME: where did these entries come from ? -- FR */
1245 { 0xfc800000, 0x38800000, RTL_GIGA_MAC_VER_15 },
1246 { 0xfc800000, 0x30800000, RTL_GIGA_MAC_VER_14 },
1247
1248 /* 8110 family. */
1249 { 0xfc800000, 0x98000000, RTL_GIGA_MAC_VER_06 },
1250 { 0xfc800000, 0x18000000, RTL_GIGA_MAC_VER_05 },
1251 { 0xfc800000, 0x10000000, RTL_GIGA_MAC_VER_04 },
1252 { 0xfc800000, 0x04000000, RTL_GIGA_MAC_VER_03 },
1253 { 0xfc800000, 0x00800000, RTL_GIGA_MAC_VER_02 },
1254 { 0xfc800000, 0x00000000, RTL_GIGA_MAC_VER_01 },
1255
1256 { 0x00000000, 0x00000000, RTL_GIGA_MAC_VER_01 } /* Catch-all */
1257 }, *p = mac_info;
1258 u32 reg;
1259
1260 reg = RTL_R32(TxConfig);
1261 while ((reg & p->mask) != p->val)
1262 p++;
1263 tp->mac_version = p->mac_version;
1264
1265 if (p->mask == 0x00000000) {
1266 struct pci_dev *pdev = tp->pci_dev;
1267
1268 dev_info(&pdev->dev, "unknown MAC (%08x)\n", reg);
1269 }
1270 }
1271
1272 static void rtl8169_print_mac_version(struct rtl8169_private *tp)
1273 {
1274 dprintk("mac_version = 0x%02x\n", tp->mac_version);
1275 }
1276
1277 struct phy_reg {
1278 u16 reg;
1279 u16 val;
1280 };
1281
1282 static void rtl_phy_write(void __iomem *ioaddr, struct phy_reg *regs, int len)
1283 {
1284 while (len-- > 0) {
1285 mdio_write(ioaddr, regs->reg, regs->val);
1286 regs++;
1287 }
1288 }
1289
1290 static void rtl8169s_hw_phy_config(void __iomem *ioaddr)
1291 {
1292 struct {
1293 u16 regs[5]; /* Beware of bit-sign propagation */
1294 } phy_magic[5] = { {
1295 { 0x0000, //w 4 15 12 0
1296 0x00a1, //w 3 15 0 00a1
1297 0x0008, //w 2 15 0 0008
1298 0x1020, //w 1 15 0 1020
1299 0x1000 } },{ //w 0 15 0 1000
1300 { 0x7000, //w 4 15 12 7
1301 0xff41, //w 3 15 0 ff41
1302 0xde60, //w 2 15 0 de60
1303 0x0140, //w 1 15 0 0140
1304 0x0077 } },{ //w 0 15 0 0077
1305 { 0xa000, //w 4 15 12 a
1306 0xdf01, //w 3 15 0 df01
1307 0xdf20, //w 2 15 0 df20
1308 0xff95, //w 1 15 0 ff95
1309 0xfa00 } },{ //w 0 15 0 fa00
1310 { 0xb000, //w 4 15 12 b
1311 0xff41, //w 3 15 0 ff41
1312 0xde20, //w 2 15 0 de20
1313 0x0140, //w 1 15 0 0140
1314 0x00bb } },{ //w 0 15 0 00bb
1315 { 0xf000, //w 4 15 12 f
1316 0xdf01, //w 3 15 0 df01
1317 0xdf20, //w 2 15 0 df20
1318 0xff95, //w 1 15 0 ff95
1319 0xbf00 } //w 0 15 0 bf00
1320 }
1321 }, *p = phy_magic;
1322 unsigned int i;
1323
1324 mdio_write(ioaddr, 0x1f, 0x0001); //w 31 2 0 1
1325 mdio_write(ioaddr, 0x15, 0x1000); //w 21 15 0 1000
1326 mdio_write(ioaddr, 0x18, 0x65c7); //w 24 15 0 65c7
1327 rtl8169_write_gmii_reg_bit(ioaddr, 4, 11, 0); //w 4 11 11 0
1328
1329 for (i = 0; i < ARRAY_SIZE(phy_magic); i++, p++) {
1330 int val, pos = 4;
1331
1332 val = (mdio_read(ioaddr, pos) & 0x0fff) | (p->regs[0] & 0xffff);
1333 mdio_write(ioaddr, pos, val);
1334 while (--pos >= 0)
1335 mdio_write(ioaddr, pos, p->regs[4 - pos] & 0xffff);
1336 rtl8169_write_gmii_reg_bit(ioaddr, 4, 11, 1); //w 4 11 11 1
1337 rtl8169_write_gmii_reg_bit(ioaddr, 4, 11, 0); //w 4 11 11 0
1338 }
1339 mdio_write(ioaddr, 0x1f, 0x0000); //w 31 2 0 0
1340 }
1341
1342 static void rtl8169sb_hw_phy_config(void __iomem *ioaddr)
1343 {
1344 struct phy_reg phy_reg_init[] = {
1345 { 0x1f, 0x0002 },
1346 { 0x01, 0x90d0 },
1347 { 0x1f, 0x0000 }
1348 };
1349
1350 rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init));
1351 }
1352
1353 static void rtl8168bb_hw_phy_config(void __iomem *ioaddr)
1354 {
1355 struct phy_reg phy_reg_init[] = {
1356 { 0x10, 0xf41b },
1357 { 0x1f, 0x0000 }
1358 };
1359
1360 mdio_write(ioaddr, 0x1f, 0x0001);
1361 mdio_patch(ioaddr, 0x16, 1 << 0);
1362
1363 rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init));
1364 }
1365
1366 static void rtl8168bef_hw_phy_config(void __iomem *ioaddr)
1367 {
1368 struct phy_reg phy_reg_init[] = {
1369 { 0x1f, 0x0001 },
1370 { 0x10, 0xf41b },
1371 { 0x1f, 0x0000 }
1372 };
1373
1374 rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init));
1375 }
1376
1377 static void rtl8168cp_hw_phy_config(void __iomem *ioaddr)
1378 {
1379 struct phy_reg phy_reg_init[] = {
1380 { 0x1f, 0x0000 },
1381 { 0x1d, 0x0f00 },
1382 { 0x1f, 0x0002 },
1383 { 0x0c, 0x1ec8 },
1384 { 0x1f, 0x0000 }
1385 };
1386
1387 rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init));
1388 }
1389
1390 static void rtl8168c_1_hw_phy_config(void __iomem *ioaddr)
1391 {
1392 struct phy_reg phy_reg_init[] = {
1393 { 0x1f, 0x0001 },
1394 { 0x12, 0x2300 },
1395 { 0x1f, 0x0002 },
1396 { 0x00, 0x88d4 },
1397 { 0x01, 0x82b1 },
1398 { 0x03, 0x7002 },
1399 { 0x08, 0x9e30 },
1400 { 0x09, 0x01f0 },
1401 { 0x0a, 0x5500 },
1402 { 0x0c, 0x00c8 },
1403 { 0x1f, 0x0003 },
1404 { 0x12, 0xc096 },
1405 { 0x16, 0x000a },
1406 { 0x1f, 0x0000 },
1407 { 0x1f, 0x0000 },
1408 { 0x09, 0x2000 },
1409 { 0x09, 0x0000 }
1410 };
1411
1412 rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init));
1413
1414 mdio_patch(ioaddr, 0x14, 1 << 5);
1415 mdio_patch(ioaddr, 0x0d, 1 << 5);
1416 mdio_write(ioaddr, 0x1f, 0x0000);
1417 }
1418
1419 static void rtl8168c_2_hw_phy_config(void __iomem *ioaddr)
1420 {
1421 struct phy_reg phy_reg_init[] = {
1422 { 0x1f, 0x0001 },
1423 { 0x12, 0x2300 },
1424 { 0x03, 0x802f },
1425 { 0x02, 0x4f02 },
1426 { 0x01, 0x0409 },
1427 { 0x00, 0xf099 },
1428 { 0x04, 0x9800 },
1429 { 0x04, 0x9000 },
1430 { 0x1d, 0x3d98 },
1431 { 0x1f, 0x0002 },
1432 { 0x0c, 0x7eb8 },
1433 { 0x06, 0x0761 },
1434 { 0x1f, 0x0003 },
1435 { 0x16, 0x0f0a },
1436 { 0x1f, 0x0000 }
1437 };
1438
1439 rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init));
1440
1441 mdio_patch(ioaddr, 0x16, 1 << 0);
1442 mdio_patch(ioaddr, 0x14, 1 << 5);
1443 mdio_patch(ioaddr, 0x0d, 1 << 5);
1444 mdio_write(ioaddr, 0x1f, 0x0000);
1445 }
1446
1447 static void rtl8102e_hw_phy_config(void __iomem *ioaddr)
1448 {
1449 struct phy_reg phy_reg_init[] = {
1450 { 0x1f, 0x0003 },
1451 { 0x08, 0x441d },
1452 { 0x01, 0x9100 },
1453 { 0x1f, 0x0000 }
1454 };
1455
1456 mdio_write(ioaddr, 0x1f, 0x0000);
1457 mdio_patch(ioaddr, 0x11, 1 << 12);
1458 mdio_patch(ioaddr, 0x19, 1 << 13);
1459
1460 rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init));
1461 }
1462
1463 static void rtl_hw_phy_config(struct net_device *dev)
1464 {
1465 struct rtl8169_private *tp = netdev_priv(dev);
1466 void __iomem *ioaddr = tp->mmio_addr;
1467
1468 rtl8169_print_mac_version(tp);
1469
1470 switch (tp->mac_version) {
1471 case RTL_GIGA_MAC_VER_01:
1472 break;
1473 case RTL_GIGA_MAC_VER_02:
1474 case RTL_GIGA_MAC_VER_03:
1475 rtl8169s_hw_phy_config(ioaddr);
1476 break;
1477 case RTL_GIGA_MAC_VER_04:
1478 rtl8169sb_hw_phy_config(ioaddr);
1479 break;
1480 case RTL_GIGA_MAC_VER_07:
1481 case RTL_GIGA_MAC_VER_08:
1482 case RTL_GIGA_MAC_VER_09:
1483 rtl8102e_hw_phy_config(ioaddr);
1484 break;
1485 case RTL_GIGA_MAC_VER_11:
1486 rtl8168bb_hw_phy_config(ioaddr);
1487 break;
1488 case RTL_GIGA_MAC_VER_12:
1489 rtl8168bef_hw_phy_config(ioaddr);
1490 break;
1491 case RTL_GIGA_MAC_VER_17:
1492 rtl8168bef_hw_phy_config(ioaddr);
1493 break;
1494 case RTL_GIGA_MAC_VER_18:
1495 rtl8168cp_hw_phy_config(ioaddr);
1496 break;
1497 case RTL_GIGA_MAC_VER_19:
1498 rtl8168c_1_hw_phy_config(ioaddr);
1499 break;
1500 case RTL_GIGA_MAC_VER_20:
1501 rtl8168c_2_hw_phy_config(ioaddr);
1502 break;
1503 default:
1504 break;
1505 }
1506 }
1507
1508 static void rtl8169_phy_timer(unsigned long __opaque)
1509 {
1510 struct net_device *dev = (struct net_device *)__opaque;
1511 struct rtl8169_private *tp = netdev_priv(dev);
1512 struct timer_list *timer = &tp->timer;
1513 void __iomem *ioaddr = tp->mmio_addr;
1514 unsigned long timeout = RTL8169_PHY_TIMEOUT;
1515
1516 assert(tp->mac_version > RTL_GIGA_MAC_VER_01);
1517
1518 if (!(tp->phy_1000_ctrl_reg & ADVERTISE_1000FULL))
1519 return;
1520
1521 spin_lock_irq(&tp->lock);
1522
1523 if (tp->phy_reset_pending(ioaddr)) {
1524 /*
1525 * A busy loop could burn quite a few cycles on nowadays CPU.
1526 * Let's delay the execution of the timer for a few ticks.
1527 */
1528 timeout = HZ/10;
1529 goto out_mod_timer;
1530 }
1531
1532 if (tp->link_ok(ioaddr))
1533 goto out_unlock;
1534
1535 if (netif_msg_link(tp))
1536 printk(KERN_WARNING "%s: PHY reset until link up\n", dev->name);
1537
1538 tp->phy_reset_enable(ioaddr);
1539
1540 out_mod_timer:
1541 mod_timer(timer, jiffies + timeout);
1542 out_unlock:
1543 spin_unlock_irq(&tp->lock);
1544 }
1545
1546 static inline void rtl8169_delete_timer(struct net_device *dev)
1547 {
1548 struct rtl8169_private *tp = netdev_priv(dev);
1549 struct timer_list *timer = &tp->timer;
1550
1551 if (tp->mac_version <= RTL_GIGA_MAC_VER_01)
1552 return;
1553
1554 del_timer_sync(timer);
1555 }
1556
1557 static inline void rtl8169_request_timer(struct net_device *dev)
1558 {
1559 struct rtl8169_private *tp = netdev_priv(dev);
1560 struct timer_list *timer = &tp->timer;
1561
1562 if (tp->mac_version <= RTL_GIGA_MAC_VER_01)
1563 return;
1564
1565 mod_timer(timer, jiffies + RTL8169_PHY_TIMEOUT);
1566 }
1567
1568 #ifdef CONFIG_NET_POLL_CONTROLLER
1569 /*
1570 * Polling 'interrupt' - used by things like netconsole to send skbs
1571 * without having to re-enable interrupts. It's not called while
1572 * the interrupt routine is executing.
1573 */
1574 static void rtl8169_netpoll(struct net_device *dev)
1575 {
1576 struct rtl8169_private *tp = netdev_priv(dev);
1577 struct pci_dev *pdev = tp->pci_dev;
1578
1579 disable_irq(pdev->irq);
1580 rtl8169_interrupt(pdev->irq, dev);
1581 enable_irq(pdev->irq);
1582 }
1583 #endif
1584
1585 static void rtl8169_release_board(struct pci_dev *pdev, struct net_device *dev,
1586 void __iomem *ioaddr)
1587 {
1588 iounmap(ioaddr);
1589 pci_release_regions(pdev);
1590 pci_disable_device(pdev);
1591 free_netdev(dev);
1592 }
1593
1594 static void rtl8169_phy_reset(struct net_device *dev,
1595 struct rtl8169_private *tp)
1596 {
1597 void __iomem *ioaddr = tp->mmio_addr;
1598 unsigned int i;
1599
1600 tp->phy_reset_enable(ioaddr);
1601 for (i = 0; i < 100; i++) {
1602 if (!tp->phy_reset_pending(ioaddr))
1603 return;
1604 msleep(1);
1605 }
1606 if (netif_msg_link(tp))
1607 printk(KERN_ERR "%s: PHY reset failed.\n", dev->name);
1608 }
1609
1610 static void rtl8169_init_phy(struct net_device *dev, struct rtl8169_private *tp)
1611 {
1612 void __iomem *ioaddr = tp->mmio_addr;
1613
1614 rtl_hw_phy_config(dev);
1615
1616 if (tp->mac_version <= RTL_GIGA_MAC_VER_06) {
1617 dprintk("Set MAC Reg C+CR Offset 0x82h = 0x01h\n");
1618 RTL_W8(0x82, 0x01);
1619 }
1620
1621 pci_write_config_byte(tp->pci_dev, PCI_LATENCY_TIMER, 0x40);
1622
1623 if (tp->mac_version <= RTL_GIGA_MAC_VER_06)
1624 pci_write_config_byte(tp->pci_dev, PCI_CACHE_LINE_SIZE, 0x08);
1625
1626 if (tp->mac_version == RTL_GIGA_MAC_VER_02) {
1627 dprintk("Set MAC Reg C+CR Offset 0x82h = 0x01h\n");
1628 RTL_W8(0x82, 0x01);
1629 dprintk("Set PHY Reg 0x0bh = 0x00h\n");
1630 mdio_write(ioaddr, 0x0b, 0x0000); //w 0x0b 15 0 0
1631 }
1632
1633 rtl8169_phy_reset(dev, tp);
1634
1635 /*
1636 * rtl8169_set_speed_xmii takes good care of the Fast Ethernet
1637 * only 8101. Don't panic.
1638 */
1639 rtl8169_set_speed(dev, AUTONEG_ENABLE, SPEED_1000, DUPLEX_FULL);
1640
1641 if ((RTL_R8(PHYstatus) & TBI_Enable) && netif_msg_link(tp))
1642 printk(KERN_INFO PFX "%s: TBI auto-negotiating\n", dev->name);
1643 }
1644
1645 static void rtl_rar_set(struct rtl8169_private *tp, u8 *addr)
1646 {
1647 void __iomem *ioaddr = tp->mmio_addr;
1648 u32 high;
1649 u32 low;
1650
1651 low = addr[0] | (addr[1] << 8) | (addr[2] << 16) | (addr[3] << 24);
1652 high = addr[4] | (addr[5] << 8);
1653
1654 spin_lock_irq(&tp->lock);
1655
1656 RTL_W8(Cfg9346, Cfg9346_Unlock);
1657 RTL_W32(MAC0, low);
1658 RTL_W32(MAC4, high);
1659 RTL_W8(Cfg9346, Cfg9346_Lock);
1660
1661 spin_unlock_irq(&tp->lock);
1662 }
1663
1664 static int rtl_set_mac_address(struct net_device *dev, void *p)
1665 {
1666 struct rtl8169_private *tp = netdev_priv(dev);
1667 struct sockaddr *addr = p;
1668
1669 if (!is_valid_ether_addr(addr->sa_data))
1670 return -EADDRNOTAVAIL;
1671
1672 memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
1673
1674 rtl_rar_set(tp, dev->dev_addr);
1675
1676 return 0;
1677 }
1678
1679 static int rtl8169_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
1680 {
1681 struct rtl8169_private *tp = netdev_priv(dev);
1682 struct mii_ioctl_data *data = if_mii(ifr);
1683
1684 if (!netif_running(dev))
1685 return -ENODEV;
1686
1687 switch (cmd) {
1688 case SIOCGMIIPHY:
1689 data->phy_id = 32; /* Internal PHY */
1690 return 0;
1691
1692 case SIOCGMIIREG:
1693 data->val_out = mdio_read(tp->mmio_addr, data->reg_num & 0x1f);
1694 return 0;
1695
1696 case SIOCSMIIREG:
1697 if (!capable(CAP_NET_ADMIN))
1698 return -EPERM;
1699 mdio_write(tp->mmio_addr, data->reg_num & 0x1f, data->val_in);
1700 return 0;
1701 }
1702 return -EOPNOTSUPP;
1703 }
1704
1705 static const struct rtl_cfg_info {
1706 void (*hw_start)(struct net_device *);
1707 unsigned int region;
1708 unsigned int align;
1709 u16 intr_event;
1710 u16 napi_event;
1711 unsigned features;
1712 } rtl_cfg_infos [] = {
1713 [RTL_CFG_0] = {
1714 .hw_start = rtl_hw_start_8169,
1715 .region = 1,
1716 .align = 0,
1717 .intr_event = SYSErr | LinkChg | RxOverflow |
1718 RxFIFOOver | TxErr | TxOK | RxOK | RxErr,
1719 .napi_event = RxFIFOOver | TxErr | TxOK | RxOK | RxOverflow,
1720 .features = RTL_FEATURE_GMII
1721 },
1722 [RTL_CFG_1] = {
1723 .hw_start = rtl_hw_start_8168,
1724 .region = 2,
1725 .align = 8,
1726 .intr_event = SYSErr | LinkChg | RxOverflow |
1727 TxErr | TxOK | RxOK | RxErr,
1728 .napi_event = TxErr | TxOK | RxOK | RxOverflow,
1729 .features = RTL_FEATURE_GMII | RTL_FEATURE_MSI
1730 },
1731 [RTL_CFG_2] = {
1732 .hw_start = rtl_hw_start_8101,
1733 .region = 2,
1734 .align = 8,
1735 .intr_event = SYSErr | LinkChg | RxOverflow | PCSTimeout |
1736 RxFIFOOver | TxErr | TxOK | RxOK | RxErr,
1737 .napi_event = RxFIFOOver | TxErr | TxOK | RxOK | RxOverflow,
1738 .features = RTL_FEATURE_MSI
1739 }
1740 };
1741
1742 /* Cfg9346_Unlock assumed. */
1743 static unsigned rtl_try_msi(struct pci_dev *pdev, void __iomem *ioaddr,
1744 const struct rtl_cfg_info *cfg)
1745 {
1746 unsigned msi = 0;
1747 u8 cfg2;
1748
1749 cfg2 = RTL_R8(Config2) & ~MSIEnable;
1750 if (cfg->features & RTL_FEATURE_MSI) {
1751 if (pci_enable_msi(pdev)) {
1752 dev_info(&pdev->dev, "no MSI. Back to INTx.\n");
1753 } else {
1754 cfg2 |= MSIEnable;
1755 msi = RTL_FEATURE_MSI;
1756 }
1757 }
1758 RTL_W8(Config2, cfg2);
1759 return msi;
1760 }
1761
1762 static void rtl_disable_msi(struct pci_dev *pdev, struct rtl8169_private *tp)
1763 {
1764 if (tp->features & RTL_FEATURE_MSI) {
1765 pci_disable_msi(pdev);
1766 tp->features &= ~RTL_FEATURE_MSI;
1767 }
1768 }
1769
1770 static int rtl_eeprom_read(struct pci_dev *pdev, int cap, int addr, __le32 *val)
1771 {
1772 int ret, count = 100;
1773 u16 status = 0;
1774 u32 value;
1775
1776 ret = pci_write_config_word(pdev, cap + PCI_VPD_ADDR, addr);
1777 if (ret < 0)
1778 return ret;
1779
1780 do {
1781 udelay(10);
1782 ret = pci_read_config_word(pdev, cap + PCI_VPD_ADDR, &status);
1783 if (ret < 0)
1784 return ret;
1785 } while (!(status & PCI_VPD_ADDR_F) && --count);
1786
1787 if (!(status & PCI_VPD_ADDR_F))
1788 return -ETIMEDOUT;
1789
1790 ret = pci_read_config_dword(pdev, cap + PCI_VPD_DATA, &value);
1791 if (ret < 0)
1792 return ret;
1793
1794 *val = cpu_to_le32(value);
1795
1796 return 0;
1797 }
1798
1799 static void rtl_init_mac_address(struct rtl8169_private *tp,
1800 void __iomem *ioaddr)
1801 {
1802 struct pci_dev *pdev = tp->pci_dev;
1803 u8 cfg1;
1804 int vpd_cap;
1805 u8 mac[8];
1806 DECLARE_MAC_BUF(buf);
1807
1808 cfg1 = RTL_R8(Config1);
1809 if (!(cfg1 & VPD)) {
1810 dprintk("VPD access not enabled, enabling\n");
1811 RTL_W8(Cfg9346, Cfg9346_Unlock);
1812 RTL_W8(Config1, cfg1 | VPD);
1813 RTL_W8(Cfg9346, Cfg9346_Lock);
1814 }
1815
1816 vpd_cap = pci_find_capability(pdev, PCI_CAP_ID_VPD);
1817 if (!vpd_cap)
1818 return;
1819
1820 /* MAC address is stored in EEPROM at offset 0x0e
1821 * Realtek says: "The VPD address does not have to be a DWORD-aligned
1822 * address as defined in the PCI 2.2 Specifications, but the VPD data
1823 * is always consecutive 4-byte data starting from the VPD address
1824 * specified."
1825 */
1826 if (rtl_eeprom_read(pdev, vpd_cap, 0x000e, (__le32*)&mac[0]) < 0 ||
1827 rtl_eeprom_read(pdev, vpd_cap, 0x0012, (__le32*)&mac[4]) < 0) {
1828 dprintk("Reading MAC address from EEPROM failed\n");
1829 return;
1830 }
1831
1832 dprintk("MAC address found in EEPROM: %s\n", print_mac(buf, mac));
1833
1834 /* Write MAC address */
1835 rtl_rar_set(tp, mac);
1836 }
1837
1838 static int __devinit
1839 rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
1840 {
1841 const struct rtl_cfg_info *cfg = rtl_cfg_infos + ent->driver_data;
1842 const unsigned int region = cfg->region;
1843 struct rtl8169_private *tp;
1844 struct mii_if_info *mii;
1845 struct net_device *dev;
1846 void __iomem *ioaddr;
1847 unsigned int i;
1848 int rc;
1849
1850 if (netif_msg_drv(&debug)) {
1851 printk(KERN_INFO "%s Gigabit Ethernet driver %s loaded\n",
1852 MODULENAME, RTL8169_VERSION);
1853 }
1854
1855 dev = alloc_etherdev(sizeof (*tp));
1856 if (!dev) {
1857 if (netif_msg_drv(&debug))
1858 dev_err(&pdev->dev, "unable to alloc new ethernet\n");
1859 rc = -ENOMEM;
1860 goto out;
1861 }
1862
1863 SET_NETDEV_DEV(dev, &pdev->dev);
1864 tp = netdev_priv(dev);
1865 tp->dev = dev;
1866 tp->pci_dev = pdev;
1867 tp->msg_enable = netif_msg_init(debug.msg_enable, R8169_MSG_DEFAULT);
1868
1869 mii = &tp->mii;
1870 mii->dev = dev;
1871 mii->mdio_read = rtl_mdio_read;
1872 mii->mdio_write = rtl_mdio_write;
1873 mii->phy_id_mask = 0x1f;
1874 mii->reg_num_mask = 0x1f;
1875 mii->supports_gmii = !!(cfg->features & RTL_FEATURE_GMII);
1876
1877 /* enable device (incl. PCI PM wakeup and hotplug setup) */
1878 rc = pci_enable_device(pdev);
1879 if (rc < 0) {
1880 if (netif_msg_probe(tp))
1881 dev_err(&pdev->dev, "enable failure\n");
1882 goto err_out_free_dev_1;
1883 }
1884
1885 rc = pci_set_mwi(pdev);
1886 if (rc < 0)
1887 goto err_out_disable_2;
1888
1889 /* make sure PCI base addr 1 is MMIO */
1890 if (!(pci_resource_flags(pdev, region) & IORESOURCE_MEM)) {
1891 if (netif_msg_probe(tp)) {
1892 dev_err(&pdev->dev,
1893 "region #%d not an MMIO resource, aborting\n",
1894 region);
1895 }
1896 rc = -ENODEV;
1897 goto err_out_mwi_3;
1898 }
1899
1900 /* check for weird/broken PCI region reporting */
1901 if (pci_resource_len(pdev, region) < R8169_REGS_SIZE) {
1902 if (netif_msg_probe(tp)) {
1903 dev_err(&pdev->dev,
1904 "Invalid PCI region size(s), aborting\n");
1905 }
1906 rc = -ENODEV;
1907 goto err_out_mwi_3;
1908 }
1909
1910 rc = pci_request_regions(pdev, MODULENAME);
1911 if (rc < 0) {
1912 if (netif_msg_probe(tp))
1913 dev_err(&pdev->dev, "could not request regions.\n");
1914 goto err_out_mwi_3;
1915 }
1916
1917 tp->cp_cmd = PCIMulRW | RxChkSum;
1918
1919 if ((sizeof(dma_addr_t) > 4) &&
1920 !pci_set_dma_mask(pdev, DMA_64BIT_MASK) && use_dac) {
1921 tp->cp_cmd |= PCIDAC;
1922 dev->features |= NETIF_F_HIGHDMA;
1923 } else {
1924 rc = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
1925 if (rc < 0) {
1926 if (netif_msg_probe(tp)) {
1927 dev_err(&pdev->dev,
1928 "DMA configuration failed.\n");
1929 }
1930 goto err_out_free_res_4;
1931 }
1932 }
1933
1934 pci_set_master(pdev);
1935
1936 /* ioremap MMIO region */
1937 ioaddr = ioremap(pci_resource_start(pdev, region), R8169_REGS_SIZE);
1938 if (!ioaddr) {
1939 if (netif_msg_probe(tp))
1940 dev_err(&pdev->dev, "cannot remap MMIO, aborting\n");
1941 rc = -EIO;
1942 goto err_out_free_res_4;
1943 }
1944
1945 tp->pcie_cap = pci_find_capability(pdev, PCI_CAP_ID_EXP);
1946 if (!tp->pcie_cap && netif_msg_probe(tp))
1947 dev_info(&pdev->dev, "no PCI Express capability\n");
1948
1949 /* Unneeded ? Don't mess with Mrs. Murphy. */
1950 rtl8169_irq_mask_and_ack(ioaddr);
1951
1952 /* Soft reset the chip. */
1953 RTL_W8(ChipCmd, CmdReset);
1954
1955 /* Check that the chip has finished the reset. */
1956 for (i = 0; i < 100; i++) {
1957 if ((RTL_R8(ChipCmd) & CmdReset) == 0)
1958 break;
1959 msleep_interruptible(1);
1960 }
1961
1962 /* Identify chip attached to board */
1963 rtl8169_get_mac_version(tp, ioaddr);
1964
1965 rtl8169_print_mac_version(tp);
1966
1967 for (i = 0; i < ARRAY_SIZE(rtl_chip_info); i++) {
1968 if (tp->mac_version == rtl_chip_info[i].mac_version)
1969 break;
1970 }
1971 if (i == ARRAY_SIZE(rtl_chip_info)) {
1972 /* Unknown chip: assume array element #0, original RTL-8169 */
1973 if (netif_msg_probe(tp)) {
1974 dev_printk(KERN_DEBUG, &pdev->dev,
1975 "unknown chip version, assuming %s\n",
1976 rtl_chip_info[0].name);
1977 }
1978 i = 0;
1979 }
1980 tp->chipset = i;
1981
1982 RTL_W8(Cfg9346, Cfg9346_Unlock);
1983 RTL_W8(Config1, RTL_R8(Config1) | PMEnable);
1984 RTL_W8(Config5, RTL_R8(Config5) & PMEStatus);
1985 if ((RTL_R8(Config3) & (LinkUp | MagicPacket)) != 0)
1986 tp->features |= RTL_FEATURE_WOL;
1987 if ((RTL_R8(Config5) & (UWF | BWF | MWF)) != 0)
1988 tp->features |= RTL_FEATURE_WOL;
1989 tp->features |= rtl_try_msi(pdev, ioaddr, cfg);
1990 RTL_W8(Cfg9346, Cfg9346_Lock);
1991
1992 if ((tp->mac_version <= RTL_GIGA_MAC_VER_06) &&
1993 (RTL_R8(PHYstatus) & TBI_Enable)) {
1994 tp->set_speed = rtl8169_set_speed_tbi;
1995 tp->get_settings = rtl8169_gset_tbi;
1996 tp->phy_reset_enable = rtl8169_tbi_reset_enable;
1997 tp->phy_reset_pending = rtl8169_tbi_reset_pending;
1998 tp->link_ok = rtl8169_tbi_link_ok;
1999
2000 tp->phy_1000_ctrl_reg = ADVERTISE_1000FULL; /* Implied by TBI */
2001 } else {
2002 tp->set_speed = rtl8169_set_speed_xmii;
2003 tp->get_settings = rtl8169_gset_xmii;
2004 tp->phy_reset_enable = rtl8169_xmii_reset_enable;
2005 tp->phy_reset_pending = rtl8169_xmii_reset_pending;
2006 tp->link_ok = rtl8169_xmii_link_ok;
2007
2008 dev->do_ioctl = rtl8169_ioctl;
2009 }
2010
2011 spin_lock_init(&tp->lock);
2012
2013 rtl_init_mac_address(tp, ioaddr);
2014
2015 /* Get MAC address */
2016 for (i = 0; i < MAC_ADDR_LEN; i++)
2017 dev->dev_addr[i] = RTL_R8(MAC0 + i);
2018 memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len);
2019
2020 dev->open = rtl8169_open;
2021 dev->hard_start_xmit = rtl8169_start_xmit;
2022 dev->get_stats = rtl8169_get_stats;
2023 SET_ETHTOOL_OPS(dev, &rtl8169_ethtool_ops);
2024 dev->stop = rtl8169_close;
2025 dev->tx_timeout = rtl8169_tx_timeout;
2026 dev->set_multicast_list = rtl_set_rx_mode;
2027 dev->watchdog_timeo = RTL8169_TX_TIMEOUT;
2028 dev->irq = pdev->irq;
2029 dev->base_addr = (unsigned long) ioaddr;
2030 dev->change_mtu = rtl8169_change_mtu;
2031 dev->set_mac_address = rtl_set_mac_address;
2032
2033 netif_napi_add(dev, &tp->napi, rtl8169_poll, R8169_NAPI_WEIGHT);
2034
2035 #ifdef CONFIG_R8169_VLAN
2036 dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
2037 dev->vlan_rx_register = rtl8169_vlan_rx_register;
2038 #endif
2039
2040 #ifdef CONFIG_NET_POLL_CONTROLLER
2041 dev->poll_controller = rtl8169_netpoll;
2042 #endif
2043
2044 tp->intr_mask = 0xffff;
2045 tp->mmio_addr = ioaddr;
2046 tp->align = cfg->align;
2047 tp->hw_start = cfg->hw_start;
2048 tp->intr_event = cfg->intr_event;
2049 tp->napi_event = cfg->napi_event;
2050
2051 init_timer(&tp->timer);
2052 tp->timer.data = (unsigned long) dev;
2053 tp->timer.function = rtl8169_phy_timer;
2054
2055 rc = register_netdev(dev);
2056 if (rc < 0)
2057 goto err_out_msi_5;
2058
2059 pci_set_drvdata(pdev, dev);
2060
2061 if (netif_msg_probe(tp)) {
2062 u32 xid = RTL_R32(TxConfig) & 0x7cf0f8ff;
2063
2064 printk(KERN_INFO "%s: %s at 0x%lx, "
2065 "%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x, "
2066 "XID %08x IRQ %d\n",
2067 dev->name,
2068 rtl_chip_info[tp->chipset].name,
2069 dev->base_addr,
2070 dev->dev_addr[0], dev->dev_addr[1],
2071 dev->dev_addr[2], dev->dev_addr[3],
2072 dev->dev_addr[4], dev->dev_addr[5], xid, dev->irq);
2073 }
2074
2075 rtl8169_init_phy(dev, tp);
2076 device_set_wakeup_enable(&pdev->dev, tp->features & RTL_FEATURE_WOL);
2077
2078 out:
2079 return rc;
2080
2081 err_out_msi_5:
2082 rtl_disable_msi(pdev, tp);
2083 iounmap(ioaddr);
2084 err_out_free_res_4:
2085 pci_release_regions(pdev);
2086 err_out_mwi_3:
2087 pci_clear_mwi(pdev);
2088 err_out_disable_2:
2089 pci_disable_device(pdev);
2090 err_out_free_dev_1:
2091 free_netdev(dev);
2092 goto out;
2093 }
2094
2095 static void __devexit rtl8169_remove_one(struct pci_dev *pdev)
2096 {
2097 struct net_device *dev = pci_get_drvdata(pdev);
2098 struct rtl8169_private *tp = netdev_priv(dev);
2099
2100 flush_scheduled_work();
2101
2102 unregister_netdev(dev);
2103 rtl_disable_msi(pdev, tp);
2104 rtl8169_release_board(pdev, dev, tp->mmio_addr);
2105 pci_set_drvdata(pdev, NULL);
2106 }
2107
2108 static void rtl8169_set_rxbufsize(struct rtl8169_private *tp,
2109 struct net_device *dev)
2110 {
2111 unsigned int mtu = dev->mtu;
2112
2113 tp->rx_buf_sz = (mtu > RX_BUF_SIZE) ? mtu + ETH_HLEN + 8 : RX_BUF_SIZE;
2114 }
2115
2116 static int rtl8169_open(struct net_device *dev)
2117 {
2118 struct rtl8169_private *tp = netdev_priv(dev);
2119 struct pci_dev *pdev = tp->pci_dev;
2120 int retval = -ENOMEM;
2121
2122
2123 rtl8169_set_rxbufsize(tp, dev);
2124
2125 /*
2126 * Rx and Tx desscriptors needs 256 bytes alignment.
2127 * pci_alloc_consistent provides more.
2128 */
2129 tp->TxDescArray = pci_alloc_consistent(pdev, R8169_TX_RING_BYTES,
2130 &tp->TxPhyAddr);
2131 if (!tp->TxDescArray)
2132 goto out;
2133
2134 tp->RxDescArray = pci_alloc_consistent(pdev, R8169_RX_RING_BYTES,
2135 &tp->RxPhyAddr);
2136 if (!tp->RxDescArray)
2137 goto err_free_tx_0;
2138
2139 retval = rtl8169_init_ring(dev);
2140 if (retval < 0)
2141 goto err_free_rx_1;
2142
2143 INIT_DELAYED_WORK(&tp->task, NULL);
2144
2145 smp_mb();
2146
2147 retval = request_irq(dev->irq, rtl8169_interrupt,
2148 (tp->features & RTL_FEATURE_MSI) ? 0 : IRQF_SHARED,
2149 dev->name, dev);
2150 if (retval < 0)
2151 goto err_release_ring_2;
2152
2153 napi_enable(&tp->napi);
2154
2155 rtl_hw_start(dev);
2156
2157 rtl8169_request_timer(dev);
2158
2159 rtl8169_check_link_status(dev, tp, tp->mmio_addr);
2160 out:
2161 return retval;
2162
2163 err_release_ring_2:
2164 rtl8169_rx_clear(tp);
2165 err_free_rx_1:
2166 pci_free_consistent(pdev, R8169_RX_RING_BYTES, tp->RxDescArray,
2167 tp->RxPhyAddr);
2168 err_free_tx_0:
2169 pci_free_consistent(pdev, R8169_TX_RING_BYTES, tp->TxDescArray,
2170 tp->TxPhyAddr);
2171 goto out;
2172 }
2173
2174 static void rtl8169_hw_reset(void __iomem *ioaddr)
2175 {
2176 /* Disable interrupts */
2177 rtl8169_irq_mask_and_ack(ioaddr);
2178
2179 /* Reset the chipset */
2180 RTL_W8(ChipCmd, CmdReset);
2181
2182 /* PCI commit */
2183 RTL_R8(ChipCmd);
2184 }
2185
2186 static void rtl_set_rx_tx_config_registers(struct rtl8169_private *tp)
2187 {
2188 void __iomem *ioaddr = tp->mmio_addr;
2189 u32 cfg = rtl8169_rx_config;
2190
2191 cfg |= (RTL_R32(RxConfig) & rtl_chip_info[tp->chipset].RxConfigMask);
2192 RTL_W32(RxConfig, cfg);
2193
2194 /* Set DMA burst size and Interframe Gap Time */
2195 RTL_W32(TxConfig, (TX_DMA_BURST << TxDMAShift) |
2196 (InterFrameGap << TxInterFrameGapShift));
2197 }
2198
2199 static void rtl_hw_start(struct net_device *dev)
2200 {
2201 struct rtl8169_private *tp = netdev_priv(dev);
2202 void __iomem *ioaddr = tp->mmio_addr;
2203 unsigned int i;
2204
2205 /* Soft reset the chip. */
2206 RTL_W8(ChipCmd, CmdReset);
2207
2208 /* Check that the chip has finished the reset. */
2209 for (i = 0; i < 100; i++) {
2210 if ((RTL_R8(ChipCmd) & CmdReset) == 0)
2211 break;
2212 msleep_interruptible(1);
2213 }
2214
2215 tp->hw_start(dev);
2216
2217 netif_start_queue(dev);
2218 }
2219
2220
2221 static void rtl_set_rx_tx_desc_registers(struct rtl8169_private *tp,
2222 void __iomem *ioaddr)
2223 {
2224 /*
2225 * Magic spell: some iop3xx ARM board needs the TxDescAddrHigh
2226 * register to be written before TxDescAddrLow to work.
2227 * Switching from MMIO to I/O access fixes the issue as well.
2228 */
2229 RTL_W32(TxDescStartAddrHigh, ((u64) tp->TxPhyAddr) >> 32);
2230 RTL_W32(TxDescStartAddrLow, ((u64) tp->TxPhyAddr) & DMA_32BIT_MASK);
2231 RTL_W32(RxDescAddrHigh, ((u64) tp->RxPhyAddr) >> 32);
2232 RTL_W32(RxDescAddrLow, ((u64) tp->RxPhyAddr) & DMA_32BIT_MASK);
2233 }
2234
2235 static u16 rtl_rw_cpluscmd(void __iomem *ioaddr)
2236 {
2237 u16 cmd;
2238
2239 cmd = RTL_R16(CPlusCmd);
2240 RTL_W16(CPlusCmd, cmd);
2241 return cmd;
2242 }
2243
2244 static void rtl_set_rx_max_size(void __iomem *ioaddr)
2245 {
2246 /* Low hurts. Let's disable the filtering. */
2247 RTL_W16(RxMaxSize, 16383);
2248 }
2249
2250 static void rtl8169_set_magic_reg(void __iomem *ioaddr, unsigned mac_version)
2251 {
2252 struct {
2253 u32 mac_version;
2254 u32 clk;
2255 u32 val;
2256 } cfg2_info [] = {
2257 { RTL_GIGA_MAC_VER_05, PCI_Clock_33MHz, 0x000fff00 }, // 8110SCd
2258 { RTL_GIGA_MAC_VER_05, PCI_Clock_66MHz, 0x000fffff },
2259 { RTL_GIGA_MAC_VER_06, PCI_Clock_33MHz, 0x00ffff00 }, // 8110SCe
2260 { RTL_GIGA_MAC_VER_06, PCI_Clock_66MHz, 0x00ffffff }
2261 }, *p = cfg2_info;
2262 unsigned int i;
2263 u32 clk;
2264
2265 clk = RTL_R8(Config2) & PCI_Clock_66MHz;
2266 for (i = 0; i < ARRAY_SIZE(cfg2_info); i++, p++) {
2267 if ((p->mac_version == mac_version) && (p->clk == clk)) {
2268 RTL_W32(0x7c, p->val);
2269 break;
2270 }
2271 }
2272 }
2273
2274 static void rtl_hw_start_8169(struct net_device *dev)
2275 {
2276 struct rtl8169_private *tp = netdev_priv(dev);
2277 void __iomem *ioaddr = tp->mmio_addr;
2278 struct pci_dev *pdev = tp->pci_dev;
2279
2280 if (tp->mac_version == RTL_GIGA_MAC_VER_05) {
2281 RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) | PCIMulRW);
2282 pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE, 0x08);
2283 }
2284
2285 RTL_W8(Cfg9346, Cfg9346_Unlock);
2286 if ((tp->mac_version == RTL_GIGA_MAC_VER_01) ||
2287 (tp->mac_version == RTL_GIGA_MAC_VER_02) ||
2288 (tp->mac_version == RTL_GIGA_MAC_VER_03) ||
2289 (tp->mac_version == RTL_GIGA_MAC_VER_04))
2290 RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb);
2291
2292 RTL_W8(EarlyTxThres, EarlyTxThld);
2293
2294 rtl_set_rx_max_size(ioaddr);
2295
2296 if ((tp->mac_version == RTL_GIGA_MAC_VER_01) ||
2297 (tp->mac_version == RTL_GIGA_MAC_VER_02) ||
2298 (tp->mac_version == RTL_GIGA_MAC_VER_03) ||
2299 (tp->mac_version == RTL_GIGA_MAC_VER_04))
2300 rtl_set_rx_tx_config_registers(tp);
2301
2302 tp->cp_cmd |= rtl_rw_cpluscmd(ioaddr) | PCIMulRW;
2303
2304 if ((tp->mac_version == RTL_GIGA_MAC_VER_02) ||
2305 (tp->mac_version == RTL_GIGA_MAC_VER_03)) {
2306 dprintk("Set MAC Reg C+CR Offset 0xE0. "
2307 "Bit-3 and bit-14 MUST be 1\n");
2308 tp->cp_cmd |= (1 << 14);
2309 }
2310
2311 RTL_W16(CPlusCmd, tp->cp_cmd);
2312
2313 rtl8169_set_magic_reg(ioaddr, tp->mac_version);
2314
2315 /*
2316 * Undocumented corner. Supposedly:
2317 * (TxTimer << 12) | (TxPackets << 8) | (RxTimer << 4) | RxPackets
2318 */
2319 RTL_W16(IntrMitigate, 0x0000);
2320
2321 rtl_set_rx_tx_desc_registers(tp, ioaddr);
2322
2323 if ((tp->mac_version != RTL_GIGA_MAC_VER_01) &&
2324 (tp->mac_version != RTL_GIGA_MAC_VER_02) &&
2325 (tp->mac_version != RTL_GIGA_MAC_VER_03) &&
2326 (tp->mac_version != RTL_GIGA_MAC_VER_04)) {
2327 RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb);
2328 rtl_set_rx_tx_config_registers(tp);
2329 }
2330
2331 RTL_W8(Cfg9346, Cfg9346_Lock);
2332
2333 /* Initially a 10 us delay. Turned it into a PCI commit. - FR */
2334 RTL_R8(IntrMask);
2335
2336 RTL_W32(RxMissed, 0);
2337
2338 rtl_set_rx_mode(dev);
2339
2340 /* no early-rx interrupts */
2341 RTL_W16(MultiIntr, RTL_R16(MultiIntr) & 0xF000);
2342
2343 /* Enable all known interrupts by setting the interrupt mask. */
2344 RTL_W16(IntrMask, tp->intr_event);
2345 }
2346
2347 static void rtl_tx_performance_tweak(struct pci_dev *pdev, u16 force)
2348 {
2349 struct net_device *dev = pci_get_drvdata(pdev);
2350 struct rtl8169_private *tp = netdev_priv(dev);
2351 int cap = tp->pcie_cap;
2352
2353 if (cap) {
2354 u16 ctl;
2355
2356 pci_read_config_word(pdev, cap + PCI_EXP_DEVCTL, &ctl);
2357 ctl = (ctl & ~PCI_EXP_DEVCTL_READRQ) | force;
2358 pci_write_config_word(pdev, cap + PCI_EXP_DEVCTL, ctl);
2359 }
2360 }
2361
2362 static void rtl_csi_access_enable(void __iomem *ioaddr)
2363 {
2364 u32 csi;
2365
2366 csi = rtl_csi_read(ioaddr, 0x070c) & 0x00ffffff;
2367 rtl_csi_write(ioaddr, 0x070c, csi | 0x27000000);
2368 }
2369
2370 struct ephy_info {
2371 unsigned int offset;
2372 u16 mask;
2373 u16 bits;
2374 };
2375
2376 static void rtl_ephy_init(void __iomem *ioaddr, struct ephy_info *e, int len)
2377 {
2378 u16 w;
2379
2380 while (len-- > 0) {
2381 w = (rtl_ephy_read(ioaddr, e->offset) & ~e->mask) | e->bits;
2382 rtl_ephy_write(ioaddr, e->offset, w);
2383 e++;
2384 }
2385 }
2386
2387 static void rtl_hw_start_8168bb(void __iomem *ioaddr, struct pci_dev *pdev)
2388 {
2389 rtl_tx_performance_tweak(pdev,
2390 (0x5 << MAX_READ_REQUEST_SHIFT) | PCI_EXP_DEVCTL_NOSNOOP_EN);
2391 }
2392
2393 static void rtl_hw_start_8168bef(void __iomem *ioaddr, struct pci_dev *pdev)
2394 {
2395 rtl_hw_start_8168bb(ioaddr, pdev);
2396 }
2397
2398 static void __rtl_hw_start_8168cp(void __iomem *ioaddr, struct pci_dev *pdev)
2399 {
2400 rtl_tx_performance_tweak(pdev, 0x5 << MAX_READ_REQUEST_SHIFT);
2401 }
2402
2403 static void rtl_hw_start_8168cp(void __iomem *ioaddr, struct pci_dev *pdev)
2404 {
2405 __rtl_hw_start_8168cp(ioaddr, pdev);
2406 }
2407
2408 static void rtl_hw_start_8168c_1(void __iomem *ioaddr, struct pci_dev *pdev)
2409 {
2410 __rtl_hw_start_8168cp(ioaddr, pdev);
2411 }
2412
2413 static void rtl_hw_start_8168c_2(void __iomem *ioaddr, struct pci_dev *pdev)
2414 {
2415 __rtl_hw_start_8168cp(ioaddr, pdev);
2416 }
2417
2418 static void rtl_hw_start_8168(struct net_device *dev)
2419 {
2420 struct rtl8169_private *tp = netdev_priv(dev);
2421 void __iomem *ioaddr = tp->mmio_addr;
2422 struct pci_dev *pdev = tp->pci_dev;
2423
2424 RTL_W8(Cfg9346, Cfg9346_Unlock);
2425
2426 RTL_W8(EarlyTxThres, EarlyTxThld);
2427
2428 rtl_set_rx_max_size(ioaddr);
2429
2430 tp->cp_cmd |= RTL_R16(CPlusCmd) | PktCntrDisable | INTT_1;
2431
2432 RTL_W16(CPlusCmd, tp->cp_cmd);
2433
2434 RTL_W16(IntrMitigate, 0x5151);
2435
2436 /* Work around for RxFIFO overflow. */
2437 if (tp->mac_version == RTL_GIGA_MAC_VER_11) {
2438 tp->intr_event |= RxFIFOOver | PCSTimeout;
2439 tp->intr_event &= ~RxOverflow;
2440 }
2441
2442 rtl_set_rx_tx_desc_registers(tp, ioaddr);
2443
2444 rtl_set_rx_mode(dev);
2445
2446 RTL_W32(TxConfig, (TX_DMA_BURST << TxDMAShift) |
2447 (InterFrameGap << TxInterFrameGapShift));
2448
2449 RTL_R8(IntrMask);
2450
2451 switch (tp->mac_version) {
2452 case RTL_GIGA_MAC_VER_11:
2453 rtl_hw_start_8168bb(ioaddr, pdev);
2454 break;
2455
2456 case RTL_GIGA_MAC_VER_12:
2457 case RTL_GIGA_MAC_VER_17:
2458 rtl_hw_start_8168bef(ioaddr, pdev);
2459 break;
2460
2461 case RTL_GIGA_MAC_VER_18:
2462 rtl_hw_start_8168cp(ioaddr, pdev);
2463 break;
2464
2465 case RTL_GIGA_MAC_VER_19:
2466 rtl_hw_start_8168c_1(ioaddr, pdev);
2467 break;
2468
2469 case RTL_GIGA_MAC_VER_20:
2470 rtl_hw_start_8168c_2(ioaddr, pdev);
2471 break;
2472
2473 default:
2474 printk(KERN_ERR PFX "%s: unknown chipset (mac_version = %d).\n",
2475 dev->name, tp->mac_version);
2476 break;
2477 }
2478
2479 RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb);
2480
2481 RTL_W8(Cfg9346, Cfg9346_Lock);
2482
2483 RTL_W16(MultiIntr, RTL_R16(MultiIntr) & 0xF000);
2484
2485 RTL_W16(IntrMask, tp->intr_event);
2486 }
2487
2488 #define R810X_CPCMD_QUIRK_MASK (\
2489 EnableBist | \
2490 Mac_dbgo_oe | \
2491 Force_half_dup | \
2492 Force_half_dup | \
2493 Force_txflow_en | \
2494 Cxpl_dbg_sel | \
2495 ASF | \
2496 PktCntrDisable | \
2497 PCIDAC | \
2498 PCIMulRW)
2499
2500 static void rtl_hw_start_8102e_1(void __iomem *ioaddr, struct pci_dev *pdev)
2501 {
2502 static struct ephy_info e_info_8102e_1[] = {
2503 { 0x01, 0, 0x6e65 },
2504 { 0x02, 0, 0x091f },
2505 { 0x03, 0, 0xc2f9 },
2506 { 0x06, 0, 0xafb5 },
2507 { 0x07, 0, 0x0e00 },
2508 { 0x19, 0, 0xec80 },
2509 { 0x01, 0, 0x2e65 },
2510 { 0x01, 0, 0x6e65 }
2511 };
2512 u8 cfg1;
2513
2514 rtl_csi_access_enable(ioaddr);
2515
2516 RTL_W8(DBG_REG, FIX_NAK_1);
2517
2518 rtl_tx_performance_tweak(pdev, 0x5 << MAX_READ_REQUEST_SHIFT);
2519
2520 RTL_W8(Config1,
2521 LEDS1 | LEDS0 | Speed_down | MEMMAP | IOMAP | VPD | PMEnable);
2522 RTL_W8(Config3, RTL_R8(Config3) & ~Beacon_en);
2523
2524 cfg1 = RTL_R8(Config1);
2525 if ((cfg1 & LEDS0) && (cfg1 & LEDS1))
2526 RTL_W8(Config1, cfg1 & ~LEDS0);
2527
2528 RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) & ~R810X_CPCMD_QUIRK_MASK);
2529
2530 rtl_ephy_init(ioaddr, e_info_8102e_1, ARRAY_SIZE(e_info_8102e_1));
2531 }
2532
2533 static void rtl_hw_start_8102e_2(void __iomem *ioaddr, struct pci_dev *pdev)
2534 {
2535 rtl_csi_access_enable(ioaddr);
2536
2537 rtl_tx_performance_tweak(pdev, 0x5 << MAX_READ_REQUEST_SHIFT);
2538
2539 RTL_W8(Config1, MEMMAP | IOMAP | VPD | PMEnable);
2540 RTL_W8(Config3, RTL_R8(Config3) & ~Beacon_en);
2541
2542 RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) & ~R810X_CPCMD_QUIRK_MASK);
2543 }
2544
2545 static void rtl_hw_start_8102e_3(void __iomem *ioaddr, struct pci_dev *pdev)
2546 {
2547 rtl_hw_start_8102e_2(ioaddr, pdev);
2548
2549 rtl_ephy_write(ioaddr, 0x03, 0xc2f9);
2550 }
2551
2552 static void rtl_hw_start_8101(struct net_device *dev)
2553 {
2554 struct rtl8169_private *tp = netdev_priv(dev);
2555 void __iomem *ioaddr = tp->mmio_addr;
2556 struct pci_dev *pdev = tp->pci_dev;
2557
2558 if ((tp->mac_version == RTL_GIGA_MAC_VER_13) ||
2559 (tp->mac_version == RTL_GIGA_MAC_VER_16)) {
2560 int cap = tp->pcie_cap;
2561
2562 if (cap) {
2563 pci_write_config_word(pdev, cap + PCI_EXP_DEVCTL,
2564 PCI_EXP_DEVCTL_NOSNOOP_EN);
2565 }
2566 }
2567
2568 switch (tp->mac_version) {
2569 case RTL_GIGA_MAC_VER_07:
2570 rtl_hw_start_8102e_1(ioaddr, pdev);
2571 break;
2572
2573 case RTL_GIGA_MAC_VER_08:
2574 rtl_hw_start_8102e_3(ioaddr, pdev);
2575 break;
2576
2577 case RTL_GIGA_MAC_VER_09:
2578 rtl_hw_start_8102e_2(ioaddr, pdev);
2579 break;
2580 }
2581
2582 RTL_W8(Cfg9346, Cfg9346_Unlock);
2583
2584 RTL_W8(EarlyTxThres, EarlyTxThld);
2585
2586 rtl_set_rx_max_size(ioaddr);
2587
2588 tp->cp_cmd |= rtl_rw_cpluscmd(ioaddr) | PCIMulRW;
2589
2590 RTL_W16(CPlusCmd, tp->cp_cmd);
2591
2592 RTL_W16(IntrMitigate, 0x0000);
2593
2594 rtl_set_rx_tx_desc_registers(tp, ioaddr);
2595
2596 RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb);
2597 rtl_set_rx_tx_config_registers(tp);
2598
2599 RTL_W8(Cfg9346, Cfg9346_Lock);
2600
2601 RTL_R8(IntrMask);
2602
2603 rtl_set_rx_mode(dev);
2604
2605 RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb);
2606
2607 RTL_W16(MultiIntr, RTL_R16(MultiIntr) & 0xf000);
2608
2609 RTL_W16(IntrMask, tp->intr_event);
2610 }
2611
2612 static int rtl8169_change_mtu(struct net_device *dev, int new_mtu)
2613 {
2614 struct rtl8169_private *tp = netdev_priv(dev);
2615 int ret = 0;
2616
2617 if (new_mtu < ETH_ZLEN || new_mtu > SafeMtu)
2618 return -EINVAL;
2619
2620 dev->mtu = new_mtu;
2621
2622 if (!netif_running(dev))
2623 goto out;
2624
2625 rtl8169_down(dev);
2626
2627 rtl8169_set_rxbufsize(tp, dev);
2628
2629 ret = rtl8169_init_ring(dev);
2630 if (ret < 0)
2631 goto out;
2632
2633 napi_enable(&tp->napi);
2634
2635 rtl_hw_start(dev);
2636
2637 rtl8169_request_timer(dev);
2638
2639 out:
2640 return ret;
2641 }
2642
2643 static inline void rtl8169_make_unusable_by_asic(struct RxDesc *desc)
2644 {
2645 desc->addr = cpu_to_le64(0x0badbadbadbadbadull);
2646 desc->opts1 &= ~cpu_to_le32(DescOwn | RsvdMask);
2647 }
2648
2649 static void rtl8169_free_rx_skb(struct rtl8169_private *tp,
2650 struct sk_buff **sk_buff, struct RxDesc *desc)
2651 {
2652 struct pci_dev *pdev = tp->pci_dev;
2653
2654 pci_unmap_single(pdev, le64_to_cpu(desc->addr), tp->rx_buf_sz,
2655 PCI_DMA_FROMDEVICE);
2656 dev_kfree_skb(*sk_buff);
2657 *sk_buff = NULL;
2658 rtl8169_make_unusable_by_asic(desc);
2659 }
2660
2661 static inline void rtl8169_mark_to_asic(struct RxDesc *desc, u32 rx_buf_sz)
2662 {
2663 u32 eor = le32_to_cpu(desc->opts1) & RingEnd;
2664
2665 desc->opts1 = cpu_to_le32(DescOwn | eor | rx_buf_sz);
2666 }
2667
2668 static inline void rtl8169_map_to_asic(struct RxDesc *desc, dma_addr_t mapping,
2669 u32 rx_buf_sz)
2670 {
2671 desc->addr = cpu_to_le64(mapping);
2672 wmb();
2673 rtl8169_mark_to_asic(desc, rx_buf_sz);
2674 }
2675
2676 static struct sk_buff *rtl8169_alloc_rx_skb(struct pci_dev *pdev,
2677 struct net_device *dev,
2678 struct RxDesc *desc, int rx_buf_sz,
2679 unsigned int align)
2680 {
2681 struct sk_buff *skb;
2682 dma_addr_t mapping;
2683 unsigned int pad;
2684
2685 pad = align ? align : NET_IP_ALIGN;
2686
2687 skb = netdev_alloc_skb(dev, rx_buf_sz + pad);
2688 if (!skb)
2689 goto err_out;
2690
2691 skb_reserve(skb, align ? ((pad - 1) & (unsigned long)skb->data) : pad);
2692
2693 mapping = pci_map_single(pdev, skb->data, rx_buf_sz,
2694 PCI_DMA_FROMDEVICE);
2695
2696 rtl8169_map_to_asic(desc, mapping, rx_buf_sz);
2697 out:
2698 return skb;
2699
2700 err_out:
2701 rtl8169_make_unusable_by_asic(desc);
2702 goto out;
2703 }
2704
2705 static void rtl8169_rx_clear(struct rtl8169_private *tp)
2706 {
2707 unsigned int i;
2708
2709 for (i = 0; i < NUM_RX_DESC; i++) {
2710 if (tp->Rx_skbuff[i]) {
2711 rtl8169_free_rx_skb(tp, tp->Rx_skbuff + i,
2712 tp->RxDescArray + i);
2713 }
2714 }
2715 }
2716
2717 static u32 rtl8169_rx_fill(struct rtl8169_private *tp, struct net_device *dev,
2718 u32 start, u32 end)
2719 {
2720 u32 cur;
2721
2722 for (cur = start; end - cur != 0; cur++) {
2723 struct sk_buff *skb;
2724 unsigned int i = cur % NUM_RX_DESC;
2725
2726 WARN_ON((s32)(end - cur) < 0);
2727
2728 if (tp->Rx_skbuff[i])
2729 continue;
2730
2731 skb = rtl8169_alloc_rx_skb(tp->pci_dev, dev,
2732 tp->RxDescArray + i,
2733 tp->rx_buf_sz, tp->align);
2734 if (!skb)
2735 break;
2736
2737 tp->Rx_skbuff[i] = skb;
2738 }
2739 return cur - start;
2740 }
2741
2742 static inline void rtl8169_mark_as_last_descriptor(struct RxDesc *desc)
2743 {
2744 desc->opts1 |= cpu_to_le32(RingEnd);
2745 }
2746
2747 static void rtl8169_init_ring_indexes(struct rtl8169_private *tp)
2748 {
2749 tp->dirty_tx = tp->dirty_rx = tp->cur_tx = tp->cur_rx = 0;
2750 }
2751
2752 static int rtl8169_init_ring(struct net_device *dev)
2753 {
2754 struct rtl8169_private *tp = netdev_priv(dev);
2755
2756 rtl8169_init_ring_indexes(tp);
2757
2758 memset(tp->tx_skb, 0x0, NUM_TX_DESC * sizeof(struct ring_info));
2759 memset(tp->Rx_skbuff, 0x0, NUM_RX_DESC * sizeof(struct sk_buff *));
2760
2761 if (rtl8169_rx_fill(tp, dev, 0, NUM_RX_DESC) != NUM_RX_DESC)
2762 goto err_out;
2763
2764 rtl8169_mark_as_last_descriptor(tp->RxDescArray + NUM_RX_DESC - 1);
2765
2766 return 0;
2767
2768 err_out:
2769 rtl8169_rx_clear(tp);
2770 return -ENOMEM;
2771 }
2772
2773 static void rtl8169_unmap_tx_skb(struct pci_dev *pdev, struct ring_info *tx_skb,
2774 struct TxDesc *desc)
2775 {
2776 unsigned int len = tx_skb->len;
2777
2778 pci_unmap_single(pdev, le64_to_cpu(desc->addr), len, PCI_DMA_TODEVICE);
2779 desc->opts1 = 0x00;
2780 desc->opts2 = 0x00;
2781 desc->addr = 0x00;
2782 tx_skb->len = 0;
2783 }
2784
2785 static void rtl8169_tx_clear(struct rtl8169_private *tp)
2786 {
2787 unsigned int i;
2788
2789 for (i = tp->dirty_tx; i < tp->dirty_tx + NUM_TX_DESC; i++) {
2790 unsigned int entry = i % NUM_TX_DESC;
2791 struct ring_info *tx_skb = tp->tx_skb + entry;
2792 unsigned int len = tx_skb->len;
2793
2794 if (len) {
2795 struct sk_buff *skb = tx_skb->skb;
2796
2797 rtl8169_unmap_tx_skb(tp->pci_dev, tx_skb,
2798 tp->TxDescArray + entry);
2799 if (skb) {
2800 dev_kfree_skb(skb);
2801 tx_skb->skb = NULL;
2802 }
2803 tp->dev->stats.tx_dropped++;
2804 }
2805 }
2806 tp->cur_tx = tp->dirty_tx = 0;
2807 }
2808
2809 static void rtl8169_schedule_work(struct net_device *dev, work_func_t task)
2810 {
2811 struct rtl8169_private *tp = netdev_priv(dev);
2812
2813 PREPARE_DELAYED_WORK(&tp->task, task);
2814 schedule_delayed_work(&tp->task, 4);
2815 }
2816
2817 static void rtl8169_wait_for_quiescence(struct net_device *dev)
2818 {
2819 struct rtl8169_private *tp = netdev_priv(dev);
2820 void __iomem *ioaddr = tp->mmio_addr;
2821
2822 synchronize_irq(dev->irq);
2823
2824 /* Wait for any pending NAPI task to complete */
2825 napi_disable(&tp->napi);
2826
2827 rtl8169_irq_mask_and_ack(ioaddr);
2828
2829 tp->intr_mask = 0xffff;
2830 RTL_W16(IntrMask, tp->intr_event);
2831 napi_enable(&tp->napi);
2832 }
2833
2834 static void rtl8169_reinit_task(struct work_struct *work)
2835 {
2836 struct rtl8169_private *tp =
2837 container_of(work, struct rtl8169_private, task.work);
2838 struct net_device *dev = tp->dev;
2839 int ret;
2840
2841 rtnl_lock();
2842
2843 if (!netif_running(dev))
2844 goto out_unlock;
2845
2846 rtl8169_wait_for_quiescence(dev);
2847 rtl8169_close(dev);
2848
2849 ret = rtl8169_open(dev);
2850 if (unlikely(ret < 0)) {
2851 if (net_ratelimit() && netif_msg_drv(tp)) {
2852 printk(KERN_ERR PFX "%s: reinit failure (status = %d)."
2853 " Rescheduling.\n", dev->name, ret);
2854 }
2855 rtl8169_schedule_work(dev, rtl8169_reinit_task);
2856 }
2857
2858 out_unlock:
2859 rtnl_unlock();
2860 }
2861
2862 static void rtl8169_reset_task(struct work_struct *work)
2863 {
2864 struct rtl8169_private *tp =
2865 container_of(work, struct rtl8169_private, task.work);
2866 struct net_device *dev = tp->dev;
2867
2868 rtnl_lock();
2869
2870 if (!netif_running(dev))
2871 goto out_unlock;
2872
2873 rtl8169_wait_for_quiescence(dev);
2874
2875 rtl8169_rx_interrupt(dev, tp, tp->mmio_addr, ~(u32)0);
2876 rtl8169_tx_clear(tp);
2877
2878 if (tp->dirty_rx == tp->cur_rx) {
2879 rtl8169_init_ring_indexes(tp);
2880 rtl_hw_start(dev);
2881 netif_wake_queue(dev);
2882 rtl8169_check_link_status(dev, tp, tp->mmio_addr);
2883 } else {
2884 if (net_ratelimit() && netif_msg_intr(tp)) {
2885 printk(KERN_EMERG PFX "%s: Rx buffers shortage\n",
2886 dev->name);
2887 }
2888 rtl8169_schedule_work(dev, rtl8169_reset_task);
2889 }
2890
2891 out_unlock:
2892 rtnl_unlock();
2893 }
2894
2895 static void rtl8169_tx_timeout(struct net_device *dev)
2896 {
2897 struct rtl8169_private *tp = netdev_priv(dev);
2898
2899 rtl8169_hw_reset(tp->mmio_addr);
2900
2901 /* Let's wait a bit while any (async) irq lands on */
2902 rtl8169_schedule_work(dev, rtl8169_reset_task);
2903 }
2904
2905 static int rtl8169_xmit_frags(struct rtl8169_private *tp, struct sk_buff *skb,
2906 u32 opts1)
2907 {
2908 struct skb_shared_info *info = skb_shinfo(skb);
2909 unsigned int cur_frag, entry;
2910 struct TxDesc * uninitialized_var(txd);
2911
2912 entry = tp->cur_tx;
2913 for (cur_frag = 0; cur_frag < info->nr_frags; cur_frag++) {
2914 skb_frag_t *frag = info->frags + cur_frag;
2915 dma_addr_t mapping;
2916 u32 status, len;
2917 void *addr;
2918
2919 entry = (entry + 1) % NUM_TX_DESC;
2920
2921 txd = tp->TxDescArray + entry;
2922 len = frag->size;
2923 addr = ((void *) page_address(frag->page)) + frag->page_offset;
2924 mapping = pci_map_single(tp->pci_dev, addr, len, PCI_DMA_TODEVICE);
2925
2926 /* anti gcc 2.95.3 bugware (sic) */
2927 status = opts1 | len | (RingEnd * !((entry + 1) % NUM_TX_DESC));
2928
2929 txd->opts1 = cpu_to_le32(status);
2930 txd->addr = cpu_to_le64(mapping);
2931
2932 tp->tx_skb[entry].len = len;
2933 }
2934
2935 if (cur_frag) {
2936 tp->tx_skb[entry].skb = skb;
2937 txd->opts1 |= cpu_to_le32(LastFrag);
2938 }
2939
2940 return cur_frag;
2941 }
2942
2943 static inline u32 rtl8169_tso_csum(struct sk_buff *skb, struct net_device *dev)
2944 {
2945 if (dev->features & NETIF_F_TSO) {
2946 u32 mss = skb_shinfo(skb)->gso_size;
2947
2948 if (mss)
2949 return LargeSend | ((mss & MSSMask) << MSSShift);
2950 }
2951 if (skb->ip_summed == CHECKSUM_PARTIAL) {
2952 const struct iphdr *ip = ip_hdr(skb);
2953
2954 if (ip->protocol == IPPROTO_TCP)
2955 return IPCS | TCPCS;
2956 else if (ip->protocol == IPPROTO_UDP)
2957 return IPCS | UDPCS;
2958 WARN_ON(1); /* we need a WARN() */
2959 }
2960 return 0;
2961 }
2962
2963 static int rtl8169_start_xmit(struct sk_buff *skb, struct net_device *dev)
2964 {
2965 struct rtl8169_private *tp = netdev_priv(dev);
2966 unsigned int frags, entry = tp->cur_tx % NUM_TX_DESC;
2967 struct TxDesc *txd = tp->TxDescArray + entry;
2968 void __iomem *ioaddr = tp->mmio_addr;
2969 dma_addr_t mapping;
2970 u32 status, len;
2971 u32 opts1;
2972 int ret = NETDEV_TX_OK;
2973
2974 if (unlikely(TX_BUFFS_AVAIL(tp) < skb_shinfo(skb)->nr_frags)) {
2975 if (netif_msg_drv(tp)) {
2976 printk(KERN_ERR
2977 "%s: BUG! Tx Ring full when queue awake!\n",
2978 dev->name);
2979 }
2980 goto err_stop;
2981 }
2982
2983 if (unlikely(le32_to_cpu(txd->opts1) & DescOwn))
2984 goto err_stop;
2985
2986 opts1 = DescOwn | rtl8169_tso_csum(skb, dev);
2987
2988 frags = rtl8169_xmit_frags(tp, skb, opts1);
2989 if (frags) {
2990 len = skb_headlen(skb);
2991 opts1 |= FirstFrag;
2992 } else {
2993 len = skb->len;
2994
2995 if (unlikely(len < ETH_ZLEN)) {
2996 if (skb_padto(skb, ETH_ZLEN))
2997 goto err_update_stats;
2998 len = ETH_ZLEN;
2999 }
3000
3001 opts1 |= FirstFrag | LastFrag;
3002 tp->tx_skb[entry].skb = skb;
3003 }
3004
3005 mapping = pci_map_single(tp->pci_dev, skb->data, len, PCI_DMA_TODEVICE);
3006
3007 tp->tx_skb[entry].len = len;
3008 txd->addr = cpu_to_le64(mapping);
3009 txd->opts2 = cpu_to_le32(rtl8169_tx_vlan_tag(tp, skb));
3010
3011 wmb();
3012
3013 /* anti gcc 2.95.3 bugware (sic) */
3014 status = opts1 | len | (RingEnd * !((entry + 1) % NUM_TX_DESC));
3015 txd->opts1 = cpu_to_le32(status);
3016
3017 dev->trans_start = jiffies;
3018
3019 tp->cur_tx += frags + 1;
3020
3021 smp_wmb();
3022
3023 RTL_W8(TxPoll, NPQ); /* set polling bit */
3024
3025 if (TX_BUFFS_AVAIL(tp) < MAX_SKB_FRAGS) {
3026 netif_stop_queue(dev);
3027 smp_rmb();
3028 if (TX_BUFFS_AVAIL(tp) >= MAX_SKB_FRAGS)
3029 netif_wake_queue(dev);
3030 }
3031
3032 out:
3033 return ret;
3034
3035 err_stop:
3036 netif_stop_queue(dev);
3037 ret = NETDEV_TX_BUSY;
3038 err_update_stats:
3039 dev->stats.tx_dropped++;
3040 goto out;
3041 }
3042
3043 static void rtl8169_pcierr_interrupt(struct net_device *dev)
3044 {
3045 struct rtl8169_private *tp = netdev_priv(dev);
3046 struct pci_dev *pdev = tp->pci_dev;
3047 void __iomem *ioaddr = tp->mmio_addr;
3048 u16 pci_status, pci_cmd;
3049
3050 pci_read_config_word(pdev, PCI_COMMAND, &pci_cmd);
3051 pci_read_config_word(pdev, PCI_STATUS, &pci_status);
3052
3053 if (netif_msg_intr(tp)) {
3054 printk(KERN_ERR
3055 "%s: PCI error (cmd = 0x%04x, status = 0x%04x).\n",
3056 dev->name, pci_cmd, pci_status);
3057 }
3058
3059 /*
3060 * The recovery sequence below admits a very elaborated explanation:
3061 * - it seems to work;
3062 * - I did not see what else could be done;
3063 * - it makes iop3xx happy.
3064 *
3065 * Feel free to adjust to your needs.
3066 */
3067 if (pdev->broken_parity_status)
3068 pci_cmd &= ~PCI_COMMAND_PARITY;
3069 else
3070 pci_cmd |= PCI_COMMAND_SERR | PCI_COMMAND_PARITY;
3071
3072 pci_write_config_word(pdev, PCI_COMMAND, pci_cmd);
3073
3074 pci_write_config_word(pdev, PCI_STATUS,
3075 pci_status & (PCI_STATUS_DETECTED_PARITY |
3076 PCI_STATUS_SIG_SYSTEM_ERROR | PCI_STATUS_REC_MASTER_ABORT |
3077 PCI_STATUS_REC_TARGET_ABORT | PCI_STATUS_SIG_TARGET_ABORT));
3078
3079 /* The infamous DAC f*ckup only happens at boot time */
3080 if ((tp->cp_cmd & PCIDAC) && !tp->dirty_rx && !tp->cur_rx) {
3081 if (netif_msg_intr(tp))
3082 printk(KERN_INFO "%s: disabling PCI DAC.\n", dev->name);
3083 tp->cp_cmd &= ~PCIDAC;
3084 RTL_W16(CPlusCmd, tp->cp_cmd);
3085 dev->features &= ~NETIF_F_HIGHDMA;
3086 }
3087
3088 rtl8169_hw_reset(ioaddr);
3089
3090 rtl8169_schedule_work(dev, rtl8169_reinit_task);
3091 }
3092
3093 static void rtl8169_tx_interrupt(struct net_device *dev,
3094 struct rtl8169_private *tp,
3095 void __iomem *ioaddr)
3096 {
3097 unsigned int dirty_tx, tx_left;
3098
3099 dirty_tx = tp->dirty_tx;
3100 smp_rmb();
3101 tx_left = tp->cur_tx - dirty_tx;
3102
3103 while (tx_left > 0) {
3104 unsigned int entry = dirty_tx % NUM_TX_DESC;
3105 struct ring_info *tx_skb = tp->tx_skb + entry;
3106 u32 len = tx_skb->len;
3107 u32 status;
3108
3109 rmb();
3110 status = le32_to_cpu(tp->TxDescArray[entry].opts1);
3111 if (status & DescOwn)
3112 break;
3113
3114 dev->stats.tx_bytes += len;
3115 dev->stats.tx_packets++;
3116
3117 rtl8169_unmap_tx_skb(tp->pci_dev, tx_skb, tp->TxDescArray + entry);
3118
3119 if (status & LastFrag) {
3120 dev_kfree_skb_irq(tx_skb->skb);
3121 tx_skb->skb = NULL;
3122 }
3123 dirty_tx++;
3124 tx_left--;
3125 }
3126
3127 if (tp->dirty_tx != dirty_tx) {
3128 tp->dirty_tx = dirty_tx;
3129 smp_wmb();
3130 if (netif_queue_stopped(dev) &&
3131 (TX_BUFFS_AVAIL(tp) >= MAX_SKB_FRAGS)) {
3132 netif_wake_queue(dev);
3133 }
3134 /*
3135 * 8168 hack: TxPoll requests are lost when the Tx packets are
3136 * too close. Let's kick an extra TxPoll request when a burst
3137 * of start_xmit activity is detected (if it is not detected,
3138 * it is slow enough). -- FR
3139 */
3140 smp_rmb();
3141 if (tp->cur_tx != dirty_tx)
3142 RTL_W8(TxPoll, NPQ);
3143 }
3144 }
3145
3146 static inline int rtl8169_fragmented_frame(u32 status)
3147 {
3148 return (status & (FirstFrag | LastFrag)) != (FirstFrag | LastFrag);
3149 }
3150
3151 static inline void rtl8169_rx_csum(struct sk_buff *skb, struct RxDesc *desc)
3152 {
3153 u32 opts1 = le32_to_cpu(desc->opts1);
3154 u32 status = opts1 & RxProtoMask;
3155
3156 if (((status == RxProtoTCP) && !(opts1 & TCPFail)) ||
3157 ((status == RxProtoUDP) && !(opts1 & UDPFail)) ||
3158 ((status == RxProtoIP) && !(opts1 & IPFail)))
3159 skb->ip_summed = CHECKSUM_UNNECESSARY;
3160 else
3161 skb->ip_summed = CHECKSUM_NONE;
3162 }
3163
3164 static inline bool rtl8169_try_rx_copy(struct sk_buff **sk_buff,
3165 struct rtl8169_private *tp, int pkt_size,
3166 dma_addr_t addr)
3167 {
3168 struct sk_buff *skb;
3169 bool done = false;
3170
3171 if (pkt_size >= rx_copybreak)
3172 goto out;
3173
3174 skb = netdev_alloc_skb(tp->dev, pkt_size + NET_IP_ALIGN);
3175 if (!skb)
3176 goto out;
3177
3178 pci_dma_sync_single_for_cpu(tp->pci_dev, addr, pkt_size,
3179 PCI_DMA_FROMDEVICE);
3180 skb_reserve(skb, NET_IP_ALIGN);
3181 skb_copy_from_linear_data(*sk_buff, skb->data, pkt_size);
3182 *sk_buff = skb;
3183 done = true;
3184 out:
3185 return done;
3186 }
3187
3188 static int rtl8169_rx_interrupt(struct net_device *dev,
3189 struct rtl8169_private *tp,
3190 void __iomem *ioaddr, u32 budget)
3191 {
3192 unsigned int cur_rx, rx_left;
3193 unsigned int delta, count;
3194
3195 cur_rx = tp->cur_rx;
3196 rx_left = NUM_RX_DESC + tp->dirty_rx - cur_rx;
3197 rx_left = min(rx_left, budget);
3198
3199 for (; rx_left > 0; rx_left--, cur_rx++) {
3200 unsigned int entry = cur_rx % NUM_RX_DESC;
3201 struct RxDesc *desc = tp->RxDescArray + entry;
3202 u32 status;
3203
3204 rmb();
3205 status = le32_to_cpu(desc->opts1);
3206
3207 if (status & DescOwn)
3208 break;
3209 if (unlikely(status & RxRES)) {
3210 if (netif_msg_rx_err(tp)) {
3211 printk(KERN_INFO
3212 "%s: Rx ERROR. status = %08x\n",
3213 dev->name, status);
3214 }
3215 dev->stats.rx_errors++;
3216 if (status & (RxRWT | RxRUNT))
3217 dev->stats.rx_length_errors++;
3218 if (status & RxCRC)
3219 dev->stats.rx_crc_errors++;
3220 if (status & RxFOVF) {
3221 rtl8169_schedule_work(dev, rtl8169_reset_task);
3222 dev->stats.rx_fifo_errors++;
3223 }
3224 rtl8169_mark_to_asic(desc, tp->rx_buf_sz);
3225 } else {
3226 struct sk_buff *skb = tp->Rx_skbuff[entry];
3227 dma_addr_t addr = le64_to_cpu(desc->addr);
3228 int pkt_size = (status & 0x00001FFF) - 4;
3229 struct pci_dev *pdev = tp->pci_dev;
3230
3231 /*
3232 * The driver does not support incoming fragmented
3233 * frames. They are seen as a symptom of over-mtu
3234 * sized frames.
3235 */
3236 if (unlikely(rtl8169_fragmented_frame(status))) {
3237 dev->stats.rx_dropped++;
3238 dev->stats.rx_length_errors++;
3239 rtl8169_mark_to_asic(desc, tp->rx_buf_sz);
3240 continue;
3241 }
3242
3243 rtl8169_rx_csum(skb, desc);
3244
3245 if (rtl8169_try_rx_copy(&skb, tp, pkt_size, addr)) {
3246 pci_dma_sync_single_for_device(pdev, addr,
3247 pkt_size, PCI_DMA_FROMDEVICE);
3248 rtl8169_mark_to_asic(desc, tp->rx_buf_sz);
3249 } else {
3250 pci_unmap_single(pdev, addr, tp->rx_buf_sz,
3251 PCI_DMA_FROMDEVICE);
3252 tp->Rx_skbuff[entry] = NULL;
3253 }
3254
3255 skb_put(skb, pkt_size);
3256 skb->protocol = eth_type_trans(skb, dev);
3257
3258 if (rtl8169_rx_vlan_skb(tp, desc, skb) < 0)
3259 netif_receive_skb(skb);
3260
3261 dev->last_rx = jiffies;
3262 dev->stats.rx_bytes += pkt_size;
3263 dev->stats.rx_packets++;
3264 }
3265
3266 /* Work around for AMD plateform. */
3267 if ((desc->opts2 & cpu_to_le32(0xfffe000)) &&
3268 (tp->mac_version == RTL_GIGA_MAC_VER_05)) {
3269 desc->opts2 = 0;
3270 cur_rx++;
3271 }
3272 }
3273
3274 count = cur_rx - tp->cur_rx;
3275 tp->cur_rx = cur_rx;
3276
3277 delta = rtl8169_rx_fill(tp, dev, tp->dirty_rx, tp->cur_rx);
3278 if (!delta && count && netif_msg_intr(tp))
3279 printk(KERN_INFO "%s: no Rx buffer allocated\n", dev->name);
3280 tp->dirty_rx += delta;
3281
3282 /*
3283 * FIXME: until there is periodic timer to try and refill the ring,
3284 * a temporary shortage may definitely kill the Rx process.
3285 * - disable the asic to try and avoid an overflow and kick it again
3286 * after refill ?
3287 * - how do others driver handle this condition (Uh oh...).
3288 */
3289 if ((tp->dirty_rx + NUM_RX_DESC == tp->cur_rx) && netif_msg_intr(tp))
3290 printk(KERN_EMERG "%s: Rx buffers exhausted\n", dev->name);
3291
3292 return count;
3293 }
3294
3295 static irqreturn_t rtl8169_interrupt(int irq, void *dev_instance)
3296 {
3297 struct net_device *dev = dev_instance;
3298 struct rtl8169_private *tp = netdev_priv(dev);
3299 void __iomem *ioaddr = tp->mmio_addr;
3300 int handled = 0;
3301 int status;
3302
3303 status = RTL_R16(IntrStatus);
3304
3305 /* hotplug/major error/no more work/shared irq */
3306 if ((status == 0xffff) || !status)
3307 goto out;
3308
3309 handled = 1;
3310
3311 if (unlikely(!netif_running(dev))) {
3312 rtl8169_asic_down(ioaddr);
3313 goto out;
3314 }
3315
3316 status &= tp->intr_mask;
3317 RTL_W16(IntrStatus,
3318 (status & RxFIFOOver) ? (status | RxOverflow) : status);
3319
3320 if (!(status & tp->intr_event))
3321 goto out;
3322
3323 /* Work around for rx fifo overflow */
3324 if (unlikely(status & RxFIFOOver) &&
3325 (tp->mac_version == RTL_GIGA_MAC_VER_11)) {
3326 netif_stop_queue(dev);
3327 rtl8169_tx_timeout(dev);
3328 goto out;
3329 }
3330
3331 if (unlikely(status & SYSErr)) {
3332 rtl8169_pcierr_interrupt(dev);
3333 goto out;
3334 }
3335
3336 if (status & LinkChg)
3337 rtl8169_check_link_status(dev, tp, ioaddr);
3338
3339 if (status & tp->napi_event) {
3340 RTL_W16(IntrMask, tp->intr_event & ~tp->napi_event);
3341 tp->intr_mask = ~tp->napi_event;
3342
3343 if (likely(netif_rx_schedule_prep(dev, &tp->napi)))
3344 __netif_rx_schedule(dev, &tp->napi);
3345 else if (netif_msg_intr(tp)) {
3346 printk(KERN_INFO "%s: interrupt %04x in poll\n",
3347 dev->name, status);
3348 }
3349 }
3350 out:
3351 return IRQ_RETVAL(handled);
3352 }
3353
3354 static int rtl8169_poll(struct napi_struct *napi, int budget)
3355 {
3356 struct rtl8169_private *tp = container_of(napi, struct rtl8169_private, napi);
3357 struct net_device *dev = tp->dev;
3358 void __iomem *ioaddr = tp->mmio_addr;
3359 int work_done;
3360
3361 work_done = rtl8169_rx_interrupt(dev, tp, ioaddr, (u32) budget);
3362 rtl8169_tx_interrupt(dev, tp, ioaddr);
3363
3364 if (work_done < budget) {
3365 netif_rx_complete(dev, napi);
3366 tp->intr_mask = 0xffff;
3367 /*
3368 * 20040426: the barrier is not strictly required but the
3369 * behavior of the irq handler could be less predictable
3370 * without it. Btw, the lack of flush for the posted pci
3371 * write is safe - FR
3372 */
3373 smp_wmb();
3374 RTL_W16(IntrMask, tp->intr_event);
3375 }
3376
3377 return work_done;
3378 }
3379
3380 static void rtl8169_rx_missed(struct net_device *dev, void __iomem *ioaddr)
3381 {
3382 struct rtl8169_private *tp = netdev_priv(dev);
3383
3384 if (tp->mac_version > RTL_GIGA_MAC_VER_06)
3385 return;
3386
3387 dev->stats.rx_missed_errors += (RTL_R32(RxMissed) & 0xffffff);
3388 RTL_W32(RxMissed, 0);
3389 }
3390
3391 static void rtl8169_down(struct net_device *dev)
3392 {
3393 struct rtl8169_private *tp = netdev_priv(dev);
3394 void __iomem *ioaddr = tp->mmio_addr;
3395 unsigned int intrmask;
3396
3397 rtl8169_delete_timer(dev);
3398
3399 netif_stop_queue(dev);
3400
3401 napi_disable(&tp->napi);
3402
3403 core_down:
3404 spin_lock_irq(&tp->lock);
3405
3406 rtl8169_asic_down(ioaddr);
3407
3408 rtl8169_rx_missed(dev, ioaddr);
3409
3410 spin_unlock_irq(&tp->lock);
3411
3412 synchronize_irq(dev->irq);
3413
3414 /* Give a racing hard_start_xmit a few cycles to complete. */
3415 synchronize_sched(); /* FIXME: should this be synchronize_irq()? */
3416
3417 /*
3418 * And now for the 50k$ question: are IRQ disabled or not ?
3419 *
3420 * Two paths lead here:
3421 * 1) dev->close
3422 * -> netif_running() is available to sync the current code and the
3423 * IRQ handler. See rtl8169_interrupt for details.
3424 * 2) dev->change_mtu
3425 * -> rtl8169_poll can not be issued again and re-enable the
3426 * interruptions. Let's simply issue the IRQ down sequence again.
3427 *
3428 * No loop if hotpluged or major error (0xffff).
3429 */
3430 intrmask = RTL_R16(IntrMask);
3431 if (intrmask && (intrmask != 0xffff))
3432 goto core_down;
3433
3434 rtl8169_tx_clear(tp);
3435
3436 rtl8169_rx_clear(tp);
3437 }
3438
3439 static int rtl8169_close(struct net_device *dev)
3440 {
3441 struct rtl8169_private *tp = netdev_priv(dev);
3442 struct pci_dev *pdev = tp->pci_dev;
3443
3444 rtl8169_down(dev);
3445
3446 free_irq(dev->irq, dev);
3447
3448 pci_free_consistent(pdev, R8169_RX_RING_BYTES, tp->RxDescArray,
3449 tp->RxPhyAddr);
3450 pci_free_consistent(pdev, R8169_TX_RING_BYTES, tp->TxDescArray,
3451 tp->TxPhyAddr);
3452 tp->TxDescArray = NULL;
3453 tp->RxDescArray = NULL;
3454
3455 return 0;
3456 }
3457
3458 static void rtl_set_rx_mode(struct net_device *dev)
3459 {
3460 struct rtl8169_private *tp = netdev_priv(dev);
3461 void __iomem *ioaddr = tp->mmio_addr;
3462 unsigned long flags;
3463 u32 mc_filter[2]; /* Multicast hash filter */
3464 int rx_mode;
3465 u32 tmp = 0;
3466
3467 if (dev->flags & IFF_PROMISC) {
3468 /* Unconditionally log net taps. */
3469 if (netif_msg_link(tp)) {
3470 printk(KERN_NOTICE "%s: Promiscuous mode enabled.\n",
3471 dev->name);
3472 }
3473 rx_mode =
3474 AcceptBroadcast | AcceptMulticast | AcceptMyPhys |
3475 AcceptAllPhys;
3476 mc_filter[1] = mc_filter[0] = 0xffffffff;
3477 } else if ((dev->mc_count > multicast_filter_limit)
3478 || (dev->flags & IFF_ALLMULTI)) {
3479 /* Too many to filter perfectly -- accept all multicasts. */
3480 rx_mode = AcceptBroadcast | AcceptMulticast | AcceptMyPhys;
3481 mc_filter[1] = mc_filter[0] = 0xffffffff;
3482 } else {
3483 struct dev_mc_list *mclist;
3484 unsigned int i;
3485
3486 rx_mode = AcceptBroadcast | AcceptMyPhys;
3487 mc_filter[1] = mc_filter[0] = 0;
3488 for (i = 0, mclist = dev->mc_list; mclist && i < dev->mc_count;
3489 i++, mclist = mclist->next) {
3490 int bit_nr = ether_crc(ETH_ALEN, mclist->dmi_addr) >> 26;
3491 mc_filter[bit_nr >> 5] |= 1 << (bit_nr & 31);
3492 rx_mode |= AcceptMulticast;
3493 }
3494 }
3495
3496 spin_lock_irqsave(&tp->lock, flags);
3497
3498 tmp = rtl8169_rx_config | rx_mode |
3499 (RTL_R32(RxConfig) & rtl_chip_info[tp->chipset].RxConfigMask);
3500
3501 if (tp->mac_version > RTL_GIGA_MAC_VER_06) {
3502 u32 data = mc_filter[0];
3503
3504 mc_filter[0] = swab32(mc_filter[1]);
3505 mc_filter[1] = swab32(data);
3506 }
3507
3508 RTL_W32(MAR0 + 0, mc_filter[0]);
3509 RTL_W32(MAR0 + 4, mc_filter[1]);
3510
3511 RTL_W32(RxConfig, tmp);
3512
3513 spin_unlock_irqrestore(&tp->lock, flags);
3514 }
3515
3516 /**
3517 * rtl8169_get_stats - Get rtl8169 read/write statistics
3518 * @dev: The Ethernet Device to get statistics for
3519 *
3520 * Get TX/RX statistics for rtl8169
3521 */
3522 static struct net_device_stats *rtl8169_get_stats(struct net_device *dev)
3523 {
3524 struct rtl8169_private *tp = netdev_priv(dev);
3525 void __iomem *ioaddr = tp->mmio_addr;
3526 unsigned long flags;
3527
3528 if (netif_running(dev)) {
3529 spin_lock_irqsave(&tp->lock, flags);
3530 rtl8169_rx_missed(dev, ioaddr);
3531 spin_unlock_irqrestore(&tp->lock, flags);
3532 }
3533
3534 return &dev->stats;
3535 }
3536
3537 #ifdef CONFIG_PM
3538
3539 static int rtl8169_suspend(struct pci_dev *pdev, pm_message_t state)
3540 {
3541 struct net_device *dev = pci_get_drvdata(pdev);
3542 struct rtl8169_private *tp = netdev_priv(dev);
3543 void __iomem *ioaddr = tp->mmio_addr;
3544
3545 if (!netif_running(dev))
3546 goto out_pci_suspend;
3547
3548 netif_device_detach(dev);
3549 netif_stop_queue(dev);
3550
3551 spin_lock_irq(&tp->lock);
3552
3553 rtl8169_asic_down(ioaddr);
3554
3555 rtl8169_rx_missed(dev, ioaddr);
3556
3557 spin_unlock_irq(&tp->lock);
3558
3559 out_pci_suspend:
3560 pci_save_state(pdev);
3561 pci_enable_wake(pdev, pci_choose_state(pdev, state),
3562 (tp->features & RTL_FEATURE_WOL) ? 1 : 0);
3563 pci_set_power_state(pdev, pci_choose_state(pdev, state));
3564
3565 return 0;
3566 }
3567
3568 static int rtl8169_resume(struct pci_dev *pdev)
3569 {
3570 struct net_device *dev = pci_get_drvdata(pdev);
3571
3572 pci_set_power_state(pdev, PCI_D0);
3573 pci_restore_state(pdev);
3574 pci_enable_wake(pdev, PCI_D0, 0);
3575
3576 if (!netif_running(dev))
3577 goto out;
3578
3579 netif_device_attach(dev);
3580
3581 rtl8169_schedule_work(dev, rtl8169_reset_task);
3582 out:
3583 return 0;
3584 }
3585
3586 #endif /* CONFIG_PM */
3587
3588 static struct pci_driver rtl8169_pci_driver = {
3589 .name = MODULENAME,
3590 .id_table = rtl8169_pci_tbl,
3591 .probe = rtl8169_init_one,
3592 .remove = __devexit_p(rtl8169_remove_one),
3593 #ifdef CONFIG_PM
3594 .suspend = rtl8169_suspend,
3595 .resume = rtl8169_resume,
3596 #endif
3597 };
3598
3599 static int __init rtl8169_init_module(void)
3600 {
3601 return pci_register_driver(&rtl8169_pci_driver);
3602 }
3603
3604 static void __exit rtl8169_cleanup_module(void)
3605 {
3606 pci_unregister_driver(&rtl8169_pci_driver);
3607 }
3608
3609 module_init(rtl8169_init_module);
3610 module_exit(rtl8169_cleanup_module);
Support for the Chinese Samsung S3C2440 based development boards