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drivers/net: avoid some skb->ip_summed initializations
[mirror_ubuntu-artful-kernel.git] / drivers / net / r8169.c
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 #include <linux/pm_runtime.h>
27
28 #include <asm/system.h>
29 #include <asm/io.h>
30 #include <asm/irq.h>
31
32 #define RTL8169_VERSION "2.3LK-NAPI"
33 #define MODULENAME "r8169"
34 #define PFX MODULENAME ": "
35
36 #ifdef RTL8169_DEBUG
37 #define assert(expr) \
38 if (!(expr)) { \
39 printk( "Assertion failed! %s,%s,%s,line=%d\n", \
40 #expr,__FILE__,__func__,__LINE__); \
41 }
42 #define dprintk(fmt, args...) \
43 do { printk(KERN_DEBUG PFX fmt, ## args); } while (0)
44 #else
45 #define assert(expr) do {} while (0)
46 #define dprintk(fmt, args...) do {} while (0)
47 #endif /* RTL8169_DEBUG */
48
49 #define R8169_MSG_DEFAULT \
50 (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_IFUP | NETIF_MSG_IFDOWN)
51
52 #define TX_BUFFS_AVAIL(tp) \
53 (tp->dirty_tx + NUM_TX_DESC - tp->cur_tx - 1)
54
55 /* Maximum number of multicast addresses to filter (vs. Rx-all-multicast).
56 The RTL chips use a 64 element hash table based on the Ethernet CRC. */
57 static const int multicast_filter_limit = 32;
58
59 /* MAC address length */
60 #define MAC_ADDR_LEN 6
61
62 #define MAX_READ_REQUEST_SHIFT 12
63 #define RX_FIFO_THRESH 7 /* 7 means NO threshold, Rx buffer level before first PCI xfer. */
64 #define RX_DMA_BURST 6 /* Maximum PCI burst, '6' is 1024 */
65 #define TX_DMA_BURST 6 /* Maximum PCI burst, '6' is 1024 */
66 #define EarlyTxThld 0x3F /* 0x3F means NO early transmit */
67 #define SafeMtu 0x1c20 /* ... actually life sucks beyond ~7k */
68 #define InterFrameGap 0x03 /* 3 means InterFrameGap = the shortest one */
69
70 #define R8169_REGS_SIZE 256
71 #define R8169_NAPI_WEIGHT 64
72 #define NUM_TX_DESC 64 /* Number of Tx descriptor registers */
73 #define NUM_RX_DESC 256 /* Number of Rx descriptor registers */
74 #define RX_BUF_SIZE 1536 /* Rx Buffer size */
75 #define R8169_TX_RING_BYTES (NUM_TX_DESC * sizeof(struct TxDesc))
76 #define R8169_RX_RING_BYTES (NUM_RX_DESC * sizeof(struct RxDesc))
77
78 #define RTL8169_TX_TIMEOUT (6*HZ)
79 #define RTL8169_PHY_TIMEOUT (10*HZ)
80
81 #define RTL_EEPROM_SIG cpu_to_le32(0x8129)
82 #define RTL_EEPROM_SIG_MASK cpu_to_le32(0xffff)
83 #define RTL_EEPROM_SIG_ADDR 0x0000
84
85 /* write/read MMIO register */
86 #define RTL_W8(reg, val8) writeb ((val8), ioaddr + (reg))
87 #define RTL_W16(reg, val16) writew ((val16), ioaddr + (reg))
88 #define RTL_W32(reg, val32) writel ((val32), ioaddr + (reg))
89 #define RTL_R8(reg) readb (ioaddr + (reg))
90 #define RTL_R16(reg) readw (ioaddr + (reg))
91 #define RTL_R32(reg) readl (ioaddr + (reg))
92
93 enum mac_version {
94 RTL_GIGA_MAC_NONE = 0x00,
95 RTL_GIGA_MAC_VER_01 = 0x01, // 8169
96 RTL_GIGA_MAC_VER_02 = 0x02, // 8169S
97 RTL_GIGA_MAC_VER_03 = 0x03, // 8110S
98 RTL_GIGA_MAC_VER_04 = 0x04, // 8169SB
99 RTL_GIGA_MAC_VER_05 = 0x05, // 8110SCd
100 RTL_GIGA_MAC_VER_06 = 0x06, // 8110SCe
101 RTL_GIGA_MAC_VER_07 = 0x07, // 8102e
102 RTL_GIGA_MAC_VER_08 = 0x08, // 8102e
103 RTL_GIGA_MAC_VER_09 = 0x09, // 8102e
104 RTL_GIGA_MAC_VER_10 = 0x0a, // 8101e
105 RTL_GIGA_MAC_VER_11 = 0x0b, // 8168Bb
106 RTL_GIGA_MAC_VER_12 = 0x0c, // 8168Be
107 RTL_GIGA_MAC_VER_13 = 0x0d, // 8101Eb
108 RTL_GIGA_MAC_VER_14 = 0x0e, // 8101 ?
109 RTL_GIGA_MAC_VER_15 = 0x0f, // 8101 ?
110 RTL_GIGA_MAC_VER_16 = 0x11, // 8101Ec
111 RTL_GIGA_MAC_VER_17 = 0x10, // 8168Bf
112 RTL_GIGA_MAC_VER_18 = 0x12, // 8168CP
113 RTL_GIGA_MAC_VER_19 = 0x13, // 8168C
114 RTL_GIGA_MAC_VER_20 = 0x14, // 8168C
115 RTL_GIGA_MAC_VER_21 = 0x15, // 8168C
116 RTL_GIGA_MAC_VER_22 = 0x16, // 8168C
117 RTL_GIGA_MAC_VER_23 = 0x17, // 8168CP
118 RTL_GIGA_MAC_VER_24 = 0x18, // 8168CP
119 RTL_GIGA_MAC_VER_25 = 0x19, // 8168D
120 RTL_GIGA_MAC_VER_26 = 0x1a, // 8168D
121 RTL_GIGA_MAC_VER_27 = 0x1b // 8168DP
122 };
123
124 #define _R(NAME,MAC,MASK) \
125 { .name = NAME, .mac_version = MAC, .RxConfigMask = MASK }
126
127 static const struct {
128 const char *name;
129 u8 mac_version;
130 u32 RxConfigMask; /* Clears the bits supported by this chip */
131 } rtl_chip_info[] = {
132 _R("RTL8169", RTL_GIGA_MAC_VER_01, 0xff7e1880), // 8169
133 _R("RTL8169s", RTL_GIGA_MAC_VER_02, 0xff7e1880), // 8169S
134 _R("RTL8110s", RTL_GIGA_MAC_VER_03, 0xff7e1880), // 8110S
135 _R("RTL8169sb/8110sb", RTL_GIGA_MAC_VER_04, 0xff7e1880), // 8169SB
136 _R("RTL8169sc/8110sc", RTL_GIGA_MAC_VER_05, 0xff7e1880), // 8110SCd
137 _R("RTL8169sc/8110sc", RTL_GIGA_MAC_VER_06, 0xff7e1880), // 8110SCe
138 _R("RTL8102e", RTL_GIGA_MAC_VER_07, 0xff7e1880), // PCI-E
139 _R("RTL8102e", RTL_GIGA_MAC_VER_08, 0xff7e1880), // PCI-E
140 _R("RTL8102e", RTL_GIGA_MAC_VER_09, 0xff7e1880), // PCI-E
141 _R("RTL8101e", RTL_GIGA_MAC_VER_10, 0xff7e1880), // PCI-E
142 _R("RTL8168b/8111b", RTL_GIGA_MAC_VER_11, 0xff7e1880), // PCI-E
143 _R("RTL8168b/8111b", RTL_GIGA_MAC_VER_12, 0xff7e1880), // PCI-E
144 _R("RTL8101e", RTL_GIGA_MAC_VER_13, 0xff7e1880), // PCI-E 8139
145 _R("RTL8100e", RTL_GIGA_MAC_VER_14, 0xff7e1880), // PCI-E 8139
146 _R("RTL8100e", RTL_GIGA_MAC_VER_15, 0xff7e1880), // PCI-E 8139
147 _R("RTL8168b/8111b", RTL_GIGA_MAC_VER_17, 0xff7e1880), // PCI-E
148 _R("RTL8101e", RTL_GIGA_MAC_VER_16, 0xff7e1880), // PCI-E
149 _R("RTL8168cp/8111cp", RTL_GIGA_MAC_VER_18, 0xff7e1880), // PCI-E
150 _R("RTL8168c/8111c", RTL_GIGA_MAC_VER_19, 0xff7e1880), // PCI-E
151 _R("RTL8168c/8111c", RTL_GIGA_MAC_VER_20, 0xff7e1880), // PCI-E
152 _R("RTL8168c/8111c", RTL_GIGA_MAC_VER_21, 0xff7e1880), // PCI-E
153 _R("RTL8168c/8111c", RTL_GIGA_MAC_VER_22, 0xff7e1880), // PCI-E
154 _R("RTL8168cp/8111cp", RTL_GIGA_MAC_VER_23, 0xff7e1880), // PCI-E
155 _R("RTL8168cp/8111cp", RTL_GIGA_MAC_VER_24, 0xff7e1880), // PCI-E
156 _R("RTL8168d/8111d", RTL_GIGA_MAC_VER_25, 0xff7e1880), // PCI-E
157 _R("RTL8168d/8111d", RTL_GIGA_MAC_VER_26, 0xff7e1880), // PCI-E
158 _R("RTL8168dp/8111dp", RTL_GIGA_MAC_VER_27, 0xff7e1880) // PCI-E
159 };
160 #undef _R
161
162 enum cfg_version {
163 RTL_CFG_0 = 0x00,
164 RTL_CFG_1,
165 RTL_CFG_2
166 };
167
168 static void rtl_hw_start_8169(struct net_device *);
169 static void rtl_hw_start_8168(struct net_device *);
170 static void rtl_hw_start_8101(struct net_device *);
171
172 static DEFINE_PCI_DEVICE_TABLE(rtl8169_pci_tbl) = {
173 { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8129), 0, 0, RTL_CFG_0 },
174 { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8136), 0, 0, RTL_CFG_2 },
175 { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8167), 0, 0, RTL_CFG_0 },
176 { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8168), 0, 0, RTL_CFG_1 },
177 { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8169), 0, 0, RTL_CFG_0 },
178 { PCI_DEVICE(PCI_VENDOR_ID_DLINK, 0x4300), 0, 0, RTL_CFG_0 },
179 { PCI_DEVICE(PCI_VENDOR_ID_AT, 0xc107), 0, 0, RTL_CFG_0 },
180 { PCI_DEVICE(0x16ec, 0x0116), 0, 0, RTL_CFG_0 },
181 { PCI_VENDOR_ID_LINKSYS, 0x1032,
182 PCI_ANY_ID, 0x0024, 0, 0, RTL_CFG_0 },
183 { 0x0001, 0x8168,
184 PCI_ANY_ID, 0x2410, 0, 0, RTL_CFG_2 },
185 {0,},
186 };
187
188 MODULE_DEVICE_TABLE(pci, rtl8169_pci_tbl);
189
190 /*
191 * we set our copybreak very high so that we don't have
192 * to allocate 16k frames all the time (see note in
193 * rtl8169_open()
194 */
195 static int rx_copybreak = 16383;
196 static int use_dac;
197 static struct {
198 u32 msg_enable;
199 } debug = { -1 };
200
201 enum rtl_registers {
202 MAC0 = 0, /* Ethernet hardware address. */
203 MAC4 = 4,
204 MAR0 = 8, /* Multicast filter. */
205 CounterAddrLow = 0x10,
206 CounterAddrHigh = 0x14,
207 TxDescStartAddrLow = 0x20,
208 TxDescStartAddrHigh = 0x24,
209 TxHDescStartAddrLow = 0x28,
210 TxHDescStartAddrHigh = 0x2c,
211 FLASH = 0x30,
212 ERSR = 0x36,
213 ChipCmd = 0x37,
214 TxPoll = 0x38,
215 IntrMask = 0x3c,
216 IntrStatus = 0x3e,
217 TxConfig = 0x40,
218 RxConfig = 0x44,
219 RxMissed = 0x4c,
220 Cfg9346 = 0x50,
221 Config0 = 0x51,
222 Config1 = 0x52,
223 Config2 = 0x53,
224 Config3 = 0x54,
225 Config4 = 0x55,
226 Config5 = 0x56,
227 MultiIntr = 0x5c,
228 PHYAR = 0x60,
229 PHYstatus = 0x6c,
230 RxMaxSize = 0xda,
231 CPlusCmd = 0xe0,
232 IntrMitigate = 0xe2,
233 RxDescAddrLow = 0xe4,
234 RxDescAddrHigh = 0xe8,
235 EarlyTxThres = 0xec,
236 FuncEvent = 0xf0,
237 FuncEventMask = 0xf4,
238 FuncPresetState = 0xf8,
239 FuncForceEvent = 0xfc,
240 };
241
242 enum rtl8110_registers {
243 TBICSR = 0x64,
244 TBI_ANAR = 0x68,
245 TBI_LPAR = 0x6a,
246 };
247
248 enum rtl8168_8101_registers {
249 CSIDR = 0x64,
250 CSIAR = 0x68,
251 #define CSIAR_FLAG 0x80000000
252 #define CSIAR_WRITE_CMD 0x80000000
253 #define CSIAR_BYTE_ENABLE 0x0f
254 #define CSIAR_BYTE_ENABLE_SHIFT 12
255 #define CSIAR_ADDR_MASK 0x0fff
256
257 EPHYAR = 0x80,
258 #define EPHYAR_FLAG 0x80000000
259 #define EPHYAR_WRITE_CMD 0x80000000
260 #define EPHYAR_REG_MASK 0x1f
261 #define EPHYAR_REG_SHIFT 16
262 #define EPHYAR_DATA_MASK 0xffff
263 DBG_REG = 0xd1,
264 #define FIX_NAK_1 (1 << 4)
265 #define FIX_NAK_2 (1 << 3)
266 EFUSEAR = 0xdc,
267 #define EFUSEAR_FLAG 0x80000000
268 #define EFUSEAR_WRITE_CMD 0x80000000
269 #define EFUSEAR_READ_CMD 0x00000000
270 #define EFUSEAR_REG_MASK 0x03ff
271 #define EFUSEAR_REG_SHIFT 8
272 #define EFUSEAR_DATA_MASK 0xff
273 };
274
275 enum rtl_register_content {
276 /* InterruptStatusBits */
277 SYSErr = 0x8000,
278 PCSTimeout = 0x4000,
279 SWInt = 0x0100,
280 TxDescUnavail = 0x0080,
281 RxFIFOOver = 0x0040,
282 LinkChg = 0x0020,
283 RxOverflow = 0x0010,
284 TxErr = 0x0008,
285 TxOK = 0x0004,
286 RxErr = 0x0002,
287 RxOK = 0x0001,
288
289 /* RxStatusDesc */
290 RxFOVF = (1 << 23),
291 RxRWT = (1 << 22),
292 RxRES = (1 << 21),
293 RxRUNT = (1 << 20),
294 RxCRC = (1 << 19),
295
296 /* ChipCmdBits */
297 CmdReset = 0x10,
298 CmdRxEnb = 0x08,
299 CmdTxEnb = 0x04,
300 RxBufEmpty = 0x01,
301
302 /* TXPoll register p.5 */
303 HPQ = 0x80, /* Poll cmd on the high prio queue */
304 NPQ = 0x40, /* Poll cmd on the low prio queue */
305 FSWInt = 0x01, /* Forced software interrupt */
306
307 /* Cfg9346Bits */
308 Cfg9346_Lock = 0x00,
309 Cfg9346_Unlock = 0xc0,
310
311 /* rx_mode_bits */
312 AcceptErr = 0x20,
313 AcceptRunt = 0x10,
314 AcceptBroadcast = 0x08,
315 AcceptMulticast = 0x04,
316 AcceptMyPhys = 0x02,
317 AcceptAllPhys = 0x01,
318
319 /* RxConfigBits */
320 RxCfgFIFOShift = 13,
321 RxCfgDMAShift = 8,
322
323 /* TxConfigBits */
324 TxInterFrameGapShift = 24,
325 TxDMAShift = 8, /* DMA burst value (0-7) is shift this many bits */
326
327 /* Config1 register p.24 */
328 LEDS1 = (1 << 7),
329 LEDS0 = (1 << 6),
330 MSIEnable = (1 << 5), /* Enable Message Signaled Interrupt */
331 Speed_down = (1 << 4),
332 MEMMAP = (1 << 3),
333 IOMAP = (1 << 2),
334 VPD = (1 << 1),
335 PMEnable = (1 << 0), /* Power Management Enable */
336
337 /* Config2 register p. 25 */
338 PCI_Clock_66MHz = 0x01,
339 PCI_Clock_33MHz = 0x00,
340
341 /* Config3 register p.25 */
342 MagicPacket = (1 << 5), /* Wake up when receives a Magic Packet */
343 LinkUp = (1 << 4), /* Wake up when the cable connection is re-established */
344 Beacon_en = (1 << 0), /* 8168 only. Reserved in the 8168b */
345
346 /* Config5 register p.27 */
347 BWF = (1 << 6), /* Accept Broadcast wakeup frame */
348 MWF = (1 << 5), /* Accept Multicast wakeup frame */
349 UWF = (1 << 4), /* Accept Unicast wakeup frame */
350 LanWake = (1 << 1), /* LanWake enable/disable */
351 PMEStatus = (1 << 0), /* PME status can be reset by PCI RST# */
352
353 /* TBICSR p.28 */
354 TBIReset = 0x80000000,
355 TBILoopback = 0x40000000,
356 TBINwEnable = 0x20000000,
357 TBINwRestart = 0x10000000,
358 TBILinkOk = 0x02000000,
359 TBINwComplete = 0x01000000,
360
361 /* CPlusCmd p.31 */
362 EnableBist = (1 << 15), // 8168 8101
363 Mac_dbgo_oe = (1 << 14), // 8168 8101
364 Normal_mode = (1 << 13), // unused
365 Force_half_dup = (1 << 12), // 8168 8101
366 Force_rxflow_en = (1 << 11), // 8168 8101
367 Force_txflow_en = (1 << 10), // 8168 8101
368 Cxpl_dbg_sel = (1 << 9), // 8168 8101
369 ASF = (1 << 8), // 8168 8101
370 PktCntrDisable = (1 << 7), // 8168 8101
371 Mac_dbgo_sel = 0x001c, // 8168
372 RxVlan = (1 << 6),
373 RxChkSum = (1 << 5),
374 PCIDAC = (1 << 4),
375 PCIMulRW = (1 << 3),
376 INTT_0 = 0x0000, // 8168
377 INTT_1 = 0x0001, // 8168
378 INTT_2 = 0x0002, // 8168
379 INTT_3 = 0x0003, // 8168
380
381 /* rtl8169_PHYstatus */
382 TBI_Enable = 0x80,
383 TxFlowCtrl = 0x40,
384 RxFlowCtrl = 0x20,
385 _1000bpsF = 0x10,
386 _100bps = 0x08,
387 _10bps = 0x04,
388 LinkStatus = 0x02,
389 FullDup = 0x01,
390
391 /* _TBICSRBit */
392 TBILinkOK = 0x02000000,
393
394 /* DumpCounterCommand */
395 CounterDump = 0x8,
396 };
397
398 enum desc_status_bit {
399 DescOwn = (1 << 31), /* Descriptor is owned by NIC */
400 RingEnd = (1 << 30), /* End of descriptor ring */
401 FirstFrag = (1 << 29), /* First segment of a packet */
402 LastFrag = (1 << 28), /* Final segment of a packet */
403
404 /* Tx private */
405 LargeSend = (1 << 27), /* TCP Large Send Offload (TSO) */
406 MSSShift = 16, /* MSS value position */
407 MSSMask = 0xfff, /* MSS value + LargeSend bit: 12 bits */
408 IPCS = (1 << 18), /* Calculate IP checksum */
409 UDPCS = (1 << 17), /* Calculate UDP/IP checksum */
410 TCPCS = (1 << 16), /* Calculate TCP/IP checksum */
411 TxVlanTag = (1 << 17), /* Add VLAN tag */
412
413 /* Rx private */
414 PID1 = (1 << 18), /* Protocol ID bit 1/2 */
415 PID0 = (1 << 17), /* Protocol ID bit 2/2 */
416
417 #define RxProtoUDP (PID1)
418 #define RxProtoTCP (PID0)
419 #define RxProtoIP (PID1 | PID0)
420 #define RxProtoMask RxProtoIP
421
422 IPFail = (1 << 16), /* IP checksum failed */
423 UDPFail = (1 << 15), /* UDP/IP checksum failed */
424 TCPFail = (1 << 14), /* TCP/IP checksum failed */
425 RxVlanTag = (1 << 16), /* VLAN tag available */
426 };
427
428 #define RsvdMask 0x3fffc000
429
430 struct TxDesc {
431 __le32 opts1;
432 __le32 opts2;
433 __le64 addr;
434 };
435
436 struct RxDesc {
437 __le32 opts1;
438 __le32 opts2;
439 __le64 addr;
440 };
441
442 struct ring_info {
443 struct sk_buff *skb;
444 u32 len;
445 u8 __pad[sizeof(void *) - sizeof(u32)];
446 };
447
448 enum features {
449 RTL_FEATURE_WOL = (1 << 0),
450 RTL_FEATURE_MSI = (1 << 1),
451 RTL_FEATURE_GMII = (1 << 2),
452 };
453
454 struct rtl8169_counters {
455 __le64 tx_packets;
456 __le64 rx_packets;
457 __le64 tx_errors;
458 __le32 rx_errors;
459 __le16 rx_missed;
460 __le16 align_errors;
461 __le32 tx_one_collision;
462 __le32 tx_multi_collision;
463 __le64 rx_unicast;
464 __le64 rx_broadcast;
465 __le32 rx_multicast;
466 __le16 tx_aborted;
467 __le16 tx_underun;
468 };
469
470 struct rtl8169_private {
471 void __iomem *mmio_addr; /* memory map physical address */
472 struct pci_dev *pci_dev; /* Index of PCI device */
473 struct net_device *dev;
474 struct napi_struct napi;
475 spinlock_t lock; /* spin lock flag */
476 u32 msg_enable;
477 int chipset;
478 int mac_version;
479 u32 cur_rx; /* Index into the Rx descriptor buffer of next Rx pkt. */
480 u32 cur_tx; /* Index into the Tx descriptor buffer of next Rx pkt. */
481 u32 dirty_rx;
482 u32 dirty_tx;
483 struct TxDesc *TxDescArray; /* 256-aligned Tx descriptor ring */
484 struct RxDesc *RxDescArray; /* 256-aligned Rx descriptor ring */
485 dma_addr_t TxPhyAddr;
486 dma_addr_t RxPhyAddr;
487 struct sk_buff *Rx_skbuff[NUM_RX_DESC]; /* Rx data buffers */
488 struct ring_info tx_skb[NUM_TX_DESC]; /* Tx data buffers */
489 unsigned align;
490 unsigned rx_buf_sz;
491 struct timer_list timer;
492 u16 cp_cmd;
493 u16 intr_event;
494 u16 napi_event;
495 u16 intr_mask;
496 int phy_1000_ctrl_reg;
497 #ifdef CONFIG_R8169_VLAN
498 struct vlan_group *vlgrp;
499 #endif
500 int (*set_speed)(struct net_device *, u8 autoneg, u16 speed, u8 duplex);
501 int (*get_settings)(struct net_device *, struct ethtool_cmd *);
502 void (*phy_reset_enable)(void __iomem *);
503 void (*hw_start)(struct net_device *);
504 unsigned int (*phy_reset_pending)(void __iomem *);
505 unsigned int (*link_ok)(void __iomem *);
506 int (*do_ioctl)(struct rtl8169_private *tp, struct mii_ioctl_data *data, int cmd);
507 int pcie_cap;
508 struct delayed_work task;
509 unsigned features;
510
511 struct mii_if_info mii;
512 struct rtl8169_counters counters;
513 u32 saved_wolopts;
514 };
515
516 MODULE_AUTHOR("Realtek and the Linux r8169 crew <netdev@vger.kernel.org>");
517 MODULE_DESCRIPTION("RealTek RTL-8169 Gigabit Ethernet driver");
518 module_param(rx_copybreak, int, 0);
519 MODULE_PARM_DESC(rx_copybreak, "Copy breakpoint for copy-only-tiny-frames");
520 module_param(use_dac, int, 0);
521 MODULE_PARM_DESC(use_dac, "Enable PCI DAC. Unsafe on 32 bit PCI slot.");
522 module_param_named(debug, debug.msg_enable, int, 0);
523 MODULE_PARM_DESC(debug, "Debug verbosity level (0=none, ..., 16=all)");
524 MODULE_LICENSE("GPL");
525 MODULE_VERSION(RTL8169_VERSION);
526
527 static int rtl8169_open(struct net_device *dev);
528 static netdev_tx_t rtl8169_start_xmit(struct sk_buff *skb,
529 struct net_device *dev);
530 static irqreturn_t rtl8169_interrupt(int irq, void *dev_instance);
531 static int rtl8169_init_ring(struct net_device *dev);
532 static void rtl_hw_start(struct net_device *dev);
533 static int rtl8169_close(struct net_device *dev);
534 static void rtl_set_rx_mode(struct net_device *dev);
535 static void rtl8169_tx_timeout(struct net_device *dev);
536 static struct net_device_stats *rtl8169_get_stats(struct net_device *dev);
537 static int rtl8169_rx_interrupt(struct net_device *, struct rtl8169_private *,
538 void __iomem *, u32 budget);
539 static int rtl8169_change_mtu(struct net_device *dev, int new_mtu);
540 static void rtl8169_down(struct net_device *dev);
541 static void rtl8169_rx_clear(struct rtl8169_private *tp);
542 static int rtl8169_poll(struct napi_struct *napi, int budget);
543
544 static const unsigned int rtl8169_rx_config =
545 (RX_FIFO_THRESH << RxCfgFIFOShift) | (RX_DMA_BURST << RxCfgDMAShift);
546
547 static void mdio_write(void __iomem *ioaddr, int reg_addr, int value)
548 {
549 int i;
550
551 RTL_W32(PHYAR, 0x80000000 | (reg_addr & 0x1f) << 16 | (value & 0xffff));
552
553 for (i = 20; i > 0; i--) {
554 /*
555 * Check if the RTL8169 has completed writing to the specified
556 * MII register.
557 */
558 if (!(RTL_R32(PHYAR) & 0x80000000))
559 break;
560 udelay(25);
561 }
562 /*
563 * According to hardware specs a 20us delay is required after write
564 * complete indication, but before sending next command.
565 */
566 udelay(20);
567 }
568
569 static int mdio_read(void __iomem *ioaddr, int reg_addr)
570 {
571 int i, value = -1;
572
573 RTL_W32(PHYAR, 0x0 | (reg_addr & 0x1f) << 16);
574
575 for (i = 20; i > 0; i--) {
576 /*
577 * Check if the RTL8169 has completed retrieving data from
578 * the specified MII register.
579 */
580 if (RTL_R32(PHYAR) & 0x80000000) {
581 value = RTL_R32(PHYAR) & 0xffff;
582 break;
583 }
584 udelay(25);
585 }
586 /*
587 * According to hardware specs a 20us delay is required after read
588 * complete indication, but before sending next command.
589 */
590 udelay(20);
591
592 return value;
593 }
594
595 static void mdio_patch(void __iomem *ioaddr, int reg_addr, int value)
596 {
597 mdio_write(ioaddr, reg_addr, mdio_read(ioaddr, reg_addr) | value);
598 }
599
600 static void mdio_plus_minus(void __iomem *ioaddr, int reg_addr, int p, int m)
601 {
602 int val;
603
604 val = mdio_read(ioaddr, reg_addr);
605 mdio_write(ioaddr, reg_addr, (val | p) & ~m);
606 }
607
608 static void rtl_mdio_write(struct net_device *dev, int phy_id, int location,
609 int val)
610 {
611 struct rtl8169_private *tp = netdev_priv(dev);
612 void __iomem *ioaddr = tp->mmio_addr;
613
614 mdio_write(ioaddr, location, val);
615 }
616
617 static int rtl_mdio_read(struct net_device *dev, int phy_id, int location)
618 {
619 struct rtl8169_private *tp = netdev_priv(dev);
620 void __iomem *ioaddr = tp->mmio_addr;
621
622 return mdio_read(ioaddr, location);
623 }
624
625 static void rtl_ephy_write(void __iomem *ioaddr, int reg_addr, int value)
626 {
627 unsigned int i;
628
629 RTL_W32(EPHYAR, EPHYAR_WRITE_CMD | (value & EPHYAR_DATA_MASK) |
630 (reg_addr & EPHYAR_REG_MASK) << EPHYAR_REG_SHIFT);
631
632 for (i = 0; i < 100; i++) {
633 if (!(RTL_R32(EPHYAR) & EPHYAR_FLAG))
634 break;
635 udelay(10);
636 }
637 }
638
639 static u16 rtl_ephy_read(void __iomem *ioaddr, int reg_addr)
640 {
641 u16 value = 0xffff;
642 unsigned int i;
643
644 RTL_W32(EPHYAR, (reg_addr & EPHYAR_REG_MASK) << EPHYAR_REG_SHIFT);
645
646 for (i = 0; i < 100; i++) {
647 if (RTL_R32(EPHYAR) & EPHYAR_FLAG) {
648 value = RTL_R32(EPHYAR) & EPHYAR_DATA_MASK;
649 break;
650 }
651 udelay(10);
652 }
653
654 return value;
655 }
656
657 static void rtl_csi_write(void __iomem *ioaddr, int addr, int value)
658 {
659 unsigned int i;
660
661 RTL_W32(CSIDR, value);
662 RTL_W32(CSIAR, CSIAR_WRITE_CMD | (addr & CSIAR_ADDR_MASK) |
663 CSIAR_BYTE_ENABLE << CSIAR_BYTE_ENABLE_SHIFT);
664
665 for (i = 0; i < 100; i++) {
666 if (!(RTL_R32(CSIAR) & CSIAR_FLAG))
667 break;
668 udelay(10);
669 }
670 }
671
672 static u32 rtl_csi_read(void __iomem *ioaddr, int addr)
673 {
674 u32 value = ~0x00;
675 unsigned int i;
676
677 RTL_W32(CSIAR, (addr & CSIAR_ADDR_MASK) |
678 CSIAR_BYTE_ENABLE << CSIAR_BYTE_ENABLE_SHIFT);
679
680 for (i = 0; i < 100; i++) {
681 if (RTL_R32(CSIAR) & CSIAR_FLAG) {
682 value = RTL_R32(CSIDR);
683 break;
684 }
685 udelay(10);
686 }
687
688 return value;
689 }
690
691 static u8 rtl8168d_efuse_read(void __iomem *ioaddr, int reg_addr)
692 {
693 u8 value = 0xff;
694 unsigned int i;
695
696 RTL_W32(EFUSEAR, (reg_addr & EFUSEAR_REG_MASK) << EFUSEAR_REG_SHIFT);
697
698 for (i = 0; i < 300; i++) {
699 if (RTL_R32(EFUSEAR) & EFUSEAR_FLAG) {
700 value = RTL_R32(EFUSEAR) & EFUSEAR_DATA_MASK;
701 break;
702 }
703 udelay(100);
704 }
705
706 return value;
707 }
708
709 static void rtl8169_irq_mask_and_ack(void __iomem *ioaddr)
710 {
711 RTL_W16(IntrMask, 0x0000);
712
713 RTL_W16(IntrStatus, 0xffff);
714 }
715
716 static void rtl8169_asic_down(void __iomem *ioaddr)
717 {
718 RTL_W8(ChipCmd, 0x00);
719 rtl8169_irq_mask_and_ack(ioaddr);
720 RTL_R16(CPlusCmd);
721 }
722
723 static unsigned int rtl8169_tbi_reset_pending(void __iomem *ioaddr)
724 {
725 return RTL_R32(TBICSR) & TBIReset;
726 }
727
728 static unsigned int rtl8169_xmii_reset_pending(void __iomem *ioaddr)
729 {
730 return mdio_read(ioaddr, MII_BMCR) & BMCR_RESET;
731 }
732
733 static unsigned int rtl8169_tbi_link_ok(void __iomem *ioaddr)
734 {
735 return RTL_R32(TBICSR) & TBILinkOk;
736 }
737
738 static unsigned int rtl8169_xmii_link_ok(void __iomem *ioaddr)
739 {
740 return RTL_R8(PHYstatus) & LinkStatus;
741 }
742
743 static void rtl8169_tbi_reset_enable(void __iomem *ioaddr)
744 {
745 RTL_W32(TBICSR, RTL_R32(TBICSR) | TBIReset);
746 }
747
748 static void rtl8169_xmii_reset_enable(void __iomem *ioaddr)
749 {
750 unsigned int val;
751
752 val = mdio_read(ioaddr, MII_BMCR) | BMCR_RESET;
753 mdio_write(ioaddr, MII_BMCR, val & 0xffff);
754 }
755
756 static void rtl8169_check_link_status(struct net_device *dev,
757 struct rtl8169_private *tp,
758 void __iomem *ioaddr)
759 {
760 unsigned long flags;
761
762 spin_lock_irqsave(&tp->lock, flags);
763 if (tp->link_ok(ioaddr)) {
764 /* This is to cancel a scheduled suspend if there's one. */
765 pm_request_resume(&tp->pci_dev->dev);
766 netif_carrier_on(dev);
767 netif_info(tp, ifup, dev, "link up\n");
768 } else {
769 netif_carrier_off(dev);
770 netif_info(tp, ifdown, dev, "link down\n");
771 pm_schedule_suspend(&tp->pci_dev->dev, 100);
772 }
773 spin_unlock_irqrestore(&tp->lock, flags);
774 }
775
776 #define WAKE_ANY (WAKE_PHY | WAKE_MAGIC | WAKE_UCAST | WAKE_BCAST | WAKE_MCAST)
777
778 static u32 __rtl8169_get_wol(struct rtl8169_private *tp)
779 {
780 void __iomem *ioaddr = tp->mmio_addr;
781 u8 options;
782 u32 wolopts = 0;
783
784 options = RTL_R8(Config1);
785 if (!(options & PMEnable))
786 return 0;
787
788 options = RTL_R8(Config3);
789 if (options & LinkUp)
790 wolopts |= WAKE_PHY;
791 if (options & MagicPacket)
792 wolopts |= WAKE_MAGIC;
793
794 options = RTL_R8(Config5);
795 if (options & UWF)
796 wolopts |= WAKE_UCAST;
797 if (options & BWF)
798 wolopts |= WAKE_BCAST;
799 if (options & MWF)
800 wolopts |= WAKE_MCAST;
801
802 return wolopts;
803 }
804
805 static void rtl8169_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
806 {
807 struct rtl8169_private *tp = netdev_priv(dev);
808
809 spin_lock_irq(&tp->lock);
810
811 wol->supported = WAKE_ANY;
812 wol->wolopts = __rtl8169_get_wol(tp);
813
814 spin_unlock_irq(&tp->lock);
815 }
816
817 static void __rtl8169_set_wol(struct rtl8169_private *tp, u32 wolopts)
818 {
819 void __iomem *ioaddr = tp->mmio_addr;
820 unsigned int i;
821 static const struct {
822 u32 opt;
823 u16 reg;
824 u8 mask;
825 } cfg[] = {
826 { WAKE_ANY, Config1, PMEnable },
827 { WAKE_PHY, Config3, LinkUp },
828 { WAKE_MAGIC, Config3, MagicPacket },
829 { WAKE_UCAST, Config5, UWF },
830 { WAKE_BCAST, Config5, BWF },
831 { WAKE_MCAST, Config5, MWF },
832 { WAKE_ANY, Config5, LanWake }
833 };
834
835 RTL_W8(Cfg9346, Cfg9346_Unlock);
836
837 for (i = 0; i < ARRAY_SIZE(cfg); i++) {
838 u8 options = RTL_R8(cfg[i].reg) & ~cfg[i].mask;
839 if (wolopts & cfg[i].opt)
840 options |= cfg[i].mask;
841 RTL_W8(cfg[i].reg, options);
842 }
843
844 RTL_W8(Cfg9346, Cfg9346_Lock);
845 }
846
847 static int rtl8169_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
848 {
849 struct rtl8169_private *tp = netdev_priv(dev);
850
851 spin_lock_irq(&tp->lock);
852
853 if (wol->wolopts)
854 tp->features |= RTL_FEATURE_WOL;
855 else
856 tp->features &= ~RTL_FEATURE_WOL;
857 __rtl8169_set_wol(tp, wol->wolopts);
858 device_set_wakeup_enable(&tp->pci_dev->dev, wol->wolopts);
859
860 spin_unlock_irq(&tp->lock);
861
862 return 0;
863 }
864
865 static void rtl8169_get_drvinfo(struct net_device *dev,
866 struct ethtool_drvinfo *info)
867 {
868 struct rtl8169_private *tp = netdev_priv(dev);
869
870 strcpy(info->driver, MODULENAME);
871 strcpy(info->version, RTL8169_VERSION);
872 strcpy(info->bus_info, pci_name(tp->pci_dev));
873 }
874
875 static int rtl8169_get_regs_len(struct net_device *dev)
876 {
877 return R8169_REGS_SIZE;
878 }
879
880 static int rtl8169_set_speed_tbi(struct net_device *dev,
881 u8 autoneg, u16 speed, u8 duplex)
882 {
883 struct rtl8169_private *tp = netdev_priv(dev);
884 void __iomem *ioaddr = tp->mmio_addr;
885 int ret = 0;
886 u32 reg;
887
888 reg = RTL_R32(TBICSR);
889 if ((autoneg == AUTONEG_DISABLE) && (speed == SPEED_1000) &&
890 (duplex == DUPLEX_FULL)) {
891 RTL_W32(TBICSR, reg & ~(TBINwEnable | TBINwRestart));
892 } else if (autoneg == AUTONEG_ENABLE)
893 RTL_W32(TBICSR, reg | TBINwEnable | TBINwRestart);
894 else {
895 netif_warn(tp, link, dev,
896 "incorrect speed setting refused in TBI mode\n");
897 ret = -EOPNOTSUPP;
898 }
899
900 return ret;
901 }
902
903 static int rtl8169_set_speed_xmii(struct net_device *dev,
904 u8 autoneg, u16 speed, u8 duplex)
905 {
906 struct rtl8169_private *tp = netdev_priv(dev);
907 void __iomem *ioaddr = tp->mmio_addr;
908 int giga_ctrl, bmcr;
909
910 if (autoneg == AUTONEG_ENABLE) {
911 int auto_nego;
912
913 auto_nego = mdio_read(ioaddr, MII_ADVERTISE);
914 auto_nego |= (ADVERTISE_10HALF | ADVERTISE_10FULL |
915 ADVERTISE_100HALF | ADVERTISE_100FULL);
916 auto_nego |= ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM;
917
918 giga_ctrl = mdio_read(ioaddr, MII_CTRL1000);
919 giga_ctrl &= ~(ADVERTISE_1000FULL | ADVERTISE_1000HALF);
920
921 /* The 8100e/8101e/8102e do Fast Ethernet only. */
922 if ((tp->mac_version != RTL_GIGA_MAC_VER_07) &&
923 (tp->mac_version != RTL_GIGA_MAC_VER_08) &&
924 (tp->mac_version != RTL_GIGA_MAC_VER_09) &&
925 (tp->mac_version != RTL_GIGA_MAC_VER_10) &&
926 (tp->mac_version != RTL_GIGA_MAC_VER_13) &&
927 (tp->mac_version != RTL_GIGA_MAC_VER_14) &&
928 (tp->mac_version != RTL_GIGA_MAC_VER_15) &&
929 (tp->mac_version != RTL_GIGA_MAC_VER_16)) {
930 giga_ctrl |= ADVERTISE_1000FULL | ADVERTISE_1000HALF;
931 } else {
932 netif_info(tp, link, dev,
933 "PHY does not support 1000Mbps\n");
934 }
935
936 bmcr = BMCR_ANENABLE | BMCR_ANRESTART;
937
938 if ((tp->mac_version == RTL_GIGA_MAC_VER_11) ||
939 (tp->mac_version == RTL_GIGA_MAC_VER_12) ||
940 (tp->mac_version >= RTL_GIGA_MAC_VER_17)) {
941 /*
942 * Wake up the PHY.
943 * Vendor specific (0x1f) and reserved (0x0e) MII
944 * registers.
945 */
946 mdio_write(ioaddr, 0x1f, 0x0000);
947 mdio_write(ioaddr, 0x0e, 0x0000);
948 }
949
950 mdio_write(ioaddr, MII_ADVERTISE, auto_nego);
951 mdio_write(ioaddr, MII_CTRL1000, giga_ctrl);
952 } else {
953 giga_ctrl = 0;
954
955 if (speed == SPEED_10)
956 bmcr = 0;
957 else if (speed == SPEED_100)
958 bmcr = BMCR_SPEED100;
959 else
960 return -EINVAL;
961
962 if (duplex == DUPLEX_FULL)
963 bmcr |= BMCR_FULLDPLX;
964
965 mdio_write(ioaddr, 0x1f, 0x0000);
966 }
967
968 tp->phy_1000_ctrl_reg = giga_ctrl;
969
970 mdio_write(ioaddr, MII_BMCR, bmcr);
971
972 if ((tp->mac_version == RTL_GIGA_MAC_VER_02) ||
973 (tp->mac_version == RTL_GIGA_MAC_VER_03)) {
974 if ((speed == SPEED_100) && (autoneg != AUTONEG_ENABLE)) {
975 mdio_write(ioaddr, 0x17, 0x2138);
976 mdio_write(ioaddr, 0x0e, 0x0260);
977 } else {
978 mdio_write(ioaddr, 0x17, 0x2108);
979 mdio_write(ioaddr, 0x0e, 0x0000);
980 }
981 }
982
983 return 0;
984 }
985
986 static int rtl8169_set_speed(struct net_device *dev,
987 u8 autoneg, u16 speed, u8 duplex)
988 {
989 struct rtl8169_private *tp = netdev_priv(dev);
990 int ret;
991
992 ret = tp->set_speed(dev, autoneg, speed, duplex);
993
994 if (netif_running(dev) && (tp->phy_1000_ctrl_reg & ADVERTISE_1000FULL))
995 mod_timer(&tp->timer, jiffies + RTL8169_PHY_TIMEOUT);
996
997 return ret;
998 }
999
1000 static int rtl8169_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
1001 {
1002 struct rtl8169_private *tp = netdev_priv(dev);
1003 unsigned long flags;
1004 int ret;
1005
1006 spin_lock_irqsave(&tp->lock, flags);
1007 ret = rtl8169_set_speed(dev, cmd->autoneg, cmd->speed, cmd->duplex);
1008 spin_unlock_irqrestore(&tp->lock, flags);
1009
1010 return ret;
1011 }
1012
1013 static u32 rtl8169_get_rx_csum(struct net_device *dev)
1014 {
1015 struct rtl8169_private *tp = netdev_priv(dev);
1016
1017 return tp->cp_cmd & RxChkSum;
1018 }
1019
1020 static int rtl8169_set_rx_csum(struct net_device *dev, u32 data)
1021 {
1022 struct rtl8169_private *tp = netdev_priv(dev);
1023 void __iomem *ioaddr = tp->mmio_addr;
1024 unsigned long flags;
1025
1026 spin_lock_irqsave(&tp->lock, flags);
1027
1028 if (data)
1029 tp->cp_cmd |= RxChkSum;
1030 else
1031 tp->cp_cmd &= ~RxChkSum;
1032
1033 RTL_W16(CPlusCmd, tp->cp_cmd);
1034 RTL_R16(CPlusCmd);
1035
1036 spin_unlock_irqrestore(&tp->lock, flags);
1037
1038 return 0;
1039 }
1040
1041 #ifdef CONFIG_R8169_VLAN
1042
1043 static inline u32 rtl8169_tx_vlan_tag(struct rtl8169_private *tp,
1044 struct sk_buff *skb)
1045 {
1046 return (tp->vlgrp && vlan_tx_tag_present(skb)) ?
1047 TxVlanTag | swab16(vlan_tx_tag_get(skb)) : 0x00;
1048 }
1049
1050 static void rtl8169_vlan_rx_register(struct net_device *dev,
1051 struct vlan_group *grp)
1052 {
1053 struct rtl8169_private *tp = netdev_priv(dev);
1054 void __iomem *ioaddr = tp->mmio_addr;
1055 unsigned long flags;
1056
1057 spin_lock_irqsave(&tp->lock, flags);
1058 tp->vlgrp = grp;
1059 /*
1060 * Do not disable RxVlan on 8110SCd.
1061 */
1062 if (tp->vlgrp || (tp->mac_version == RTL_GIGA_MAC_VER_05))
1063 tp->cp_cmd |= RxVlan;
1064 else
1065 tp->cp_cmd &= ~RxVlan;
1066 RTL_W16(CPlusCmd, tp->cp_cmd);
1067 RTL_R16(CPlusCmd);
1068 spin_unlock_irqrestore(&tp->lock, flags);
1069 }
1070
1071 static int rtl8169_rx_vlan_skb(struct rtl8169_private *tp, struct RxDesc *desc,
1072 struct sk_buff *skb, int polling)
1073 {
1074 u32 opts2 = le32_to_cpu(desc->opts2);
1075 struct vlan_group *vlgrp = tp->vlgrp;
1076 int ret;
1077
1078 if (vlgrp && (opts2 & RxVlanTag)) {
1079 __vlan_hwaccel_rx(skb, vlgrp, swab16(opts2 & 0xffff), polling);
1080 ret = 0;
1081 } else
1082 ret = -1;
1083 desc->opts2 = 0;
1084 return ret;
1085 }
1086
1087 #else /* !CONFIG_R8169_VLAN */
1088
1089 static inline u32 rtl8169_tx_vlan_tag(struct rtl8169_private *tp,
1090 struct sk_buff *skb)
1091 {
1092 return 0;
1093 }
1094
1095 static int rtl8169_rx_vlan_skb(struct rtl8169_private *tp, struct RxDesc *desc,
1096 struct sk_buff *skb, int polling)
1097 {
1098 return -1;
1099 }
1100
1101 #endif
1102
1103 static int rtl8169_gset_tbi(struct net_device *dev, struct ethtool_cmd *cmd)
1104 {
1105 struct rtl8169_private *tp = netdev_priv(dev);
1106 void __iomem *ioaddr = tp->mmio_addr;
1107 u32 status;
1108
1109 cmd->supported =
1110 SUPPORTED_1000baseT_Full | SUPPORTED_Autoneg | SUPPORTED_FIBRE;
1111 cmd->port = PORT_FIBRE;
1112 cmd->transceiver = XCVR_INTERNAL;
1113
1114 status = RTL_R32(TBICSR);
1115 cmd->advertising = (status & TBINwEnable) ? ADVERTISED_Autoneg : 0;
1116 cmd->autoneg = !!(status & TBINwEnable);
1117
1118 cmd->speed = SPEED_1000;
1119 cmd->duplex = DUPLEX_FULL; /* Always set */
1120
1121 return 0;
1122 }
1123
1124 static int rtl8169_gset_xmii(struct net_device *dev, struct ethtool_cmd *cmd)
1125 {
1126 struct rtl8169_private *tp = netdev_priv(dev);
1127
1128 return mii_ethtool_gset(&tp->mii, cmd);
1129 }
1130
1131 static int rtl8169_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
1132 {
1133 struct rtl8169_private *tp = netdev_priv(dev);
1134 unsigned long flags;
1135 int rc;
1136
1137 spin_lock_irqsave(&tp->lock, flags);
1138
1139 rc = tp->get_settings(dev, cmd);
1140
1141 spin_unlock_irqrestore(&tp->lock, flags);
1142 return rc;
1143 }
1144
1145 static void rtl8169_get_regs(struct net_device *dev, struct ethtool_regs *regs,
1146 void *p)
1147 {
1148 struct rtl8169_private *tp = netdev_priv(dev);
1149 unsigned long flags;
1150
1151 if (regs->len > R8169_REGS_SIZE)
1152 regs->len = R8169_REGS_SIZE;
1153
1154 spin_lock_irqsave(&tp->lock, flags);
1155 memcpy_fromio(p, tp->mmio_addr, regs->len);
1156 spin_unlock_irqrestore(&tp->lock, flags);
1157 }
1158
1159 static u32 rtl8169_get_msglevel(struct net_device *dev)
1160 {
1161 struct rtl8169_private *tp = netdev_priv(dev);
1162
1163 return tp->msg_enable;
1164 }
1165
1166 static void rtl8169_set_msglevel(struct net_device *dev, u32 value)
1167 {
1168 struct rtl8169_private *tp = netdev_priv(dev);
1169
1170 tp->msg_enable = value;
1171 }
1172
1173 static const char rtl8169_gstrings[][ETH_GSTRING_LEN] = {
1174 "tx_packets",
1175 "rx_packets",
1176 "tx_errors",
1177 "rx_errors",
1178 "rx_missed",
1179 "align_errors",
1180 "tx_single_collisions",
1181 "tx_multi_collisions",
1182 "unicast",
1183 "broadcast",
1184 "multicast",
1185 "tx_aborted",
1186 "tx_underrun",
1187 };
1188
1189 static int rtl8169_get_sset_count(struct net_device *dev, int sset)
1190 {
1191 switch (sset) {
1192 case ETH_SS_STATS:
1193 return ARRAY_SIZE(rtl8169_gstrings);
1194 default:
1195 return -EOPNOTSUPP;
1196 }
1197 }
1198
1199 static void rtl8169_update_counters(struct net_device *dev)
1200 {
1201 struct rtl8169_private *tp = netdev_priv(dev);
1202 void __iomem *ioaddr = tp->mmio_addr;
1203 struct rtl8169_counters *counters;
1204 dma_addr_t paddr;
1205 u32 cmd;
1206 int wait = 1000;
1207
1208 /*
1209 * Some chips are unable to dump tally counters when the receiver
1210 * is disabled.
1211 */
1212 if ((RTL_R8(ChipCmd) & CmdRxEnb) == 0)
1213 return;
1214
1215 counters = pci_alloc_consistent(tp->pci_dev, sizeof(*counters), &paddr);
1216 if (!counters)
1217 return;
1218
1219 RTL_W32(CounterAddrHigh, (u64)paddr >> 32);
1220 cmd = (u64)paddr & DMA_BIT_MASK(32);
1221 RTL_W32(CounterAddrLow, cmd);
1222 RTL_W32(CounterAddrLow, cmd | CounterDump);
1223
1224 while (wait--) {
1225 if ((RTL_R32(CounterAddrLow) & CounterDump) == 0) {
1226 /* copy updated counters */
1227 memcpy(&tp->counters, counters, sizeof(*counters));
1228 break;
1229 }
1230 udelay(10);
1231 }
1232
1233 RTL_W32(CounterAddrLow, 0);
1234 RTL_W32(CounterAddrHigh, 0);
1235
1236 pci_free_consistent(tp->pci_dev, sizeof(*counters), counters, paddr);
1237 }
1238
1239 static void rtl8169_get_ethtool_stats(struct net_device *dev,
1240 struct ethtool_stats *stats, u64 *data)
1241 {
1242 struct rtl8169_private *tp = netdev_priv(dev);
1243
1244 ASSERT_RTNL();
1245
1246 rtl8169_update_counters(dev);
1247
1248 data[0] = le64_to_cpu(tp->counters.tx_packets);
1249 data[1] = le64_to_cpu(tp->counters.rx_packets);
1250 data[2] = le64_to_cpu(tp->counters.tx_errors);
1251 data[3] = le32_to_cpu(tp->counters.rx_errors);
1252 data[4] = le16_to_cpu(tp->counters.rx_missed);
1253 data[5] = le16_to_cpu(tp->counters.align_errors);
1254 data[6] = le32_to_cpu(tp->counters.tx_one_collision);
1255 data[7] = le32_to_cpu(tp->counters.tx_multi_collision);
1256 data[8] = le64_to_cpu(tp->counters.rx_unicast);
1257 data[9] = le64_to_cpu(tp->counters.rx_broadcast);
1258 data[10] = le32_to_cpu(tp->counters.rx_multicast);
1259 data[11] = le16_to_cpu(tp->counters.tx_aborted);
1260 data[12] = le16_to_cpu(tp->counters.tx_underun);
1261 }
1262
1263 static void rtl8169_get_strings(struct net_device *dev, u32 stringset, u8 *data)
1264 {
1265 switch(stringset) {
1266 case ETH_SS_STATS:
1267 memcpy(data, *rtl8169_gstrings, sizeof(rtl8169_gstrings));
1268 break;
1269 }
1270 }
1271
1272 static const struct ethtool_ops rtl8169_ethtool_ops = {
1273 .get_drvinfo = rtl8169_get_drvinfo,
1274 .get_regs_len = rtl8169_get_regs_len,
1275 .get_link = ethtool_op_get_link,
1276 .get_settings = rtl8169_get_settings,
1277 .set_settings = rtl8169_set_settings,
1278 .get_msglevel = rtl8169_get_msglevel,
1279 .set_msglevel = rtl8169_set_msglevel,
1280 .get_rx_csum = rtl8169_get_rx_csum,
1281 .set_rx_csum = rtl8169_set_rx_csum,
1282 .set_tx_csum = ethtool_op_set_tx_csum,
1283 .set_sg = ethtool_op_set_sg,
1284 .set_tso = ethtool_op_set_tso,
1285 .get_regs = rtl8169_get_regs,
1286 .get_wol = rtl8169_get_wol,
1287 .set_wol = rtl8169_set_wol,
1288 .get_strings = rtl8169_get_strings,
1289 .get_sset_count = rtl8169_get_sset_count,
1290 .get_ethtool_stats = rtl8169_get_ethtool_stats,
1291 };
1292
1293 static void rtl8169_get_mac_version(struct rtl8169_private *tp,
1294 void __iomem *ioaddr)
1295 {
1296 /*
1297 * The driver currently handles the 8168Bf and the 8168Be identically
1298 * but they can be identified more specifically through the test below
1299 * if needed:
1300 *
1301 * (RTL_R32(TxConfig) & 0x700000) == 0x500000 ? 8168Bf : 8168Be
1302 *
1303 * Same thing for the 8101Eb and the 8101Ec:
1304 *
1305 * (RTL_R32(TxConfig) & 0x700000) == 0x200000 ? 8101Eb : 8101Ec
1306 */
1307 static const struct {
1308 u32 mask;
1309 u32 val;
1310 int mac_version;
1311 } mac_info[] = {
1312 /* 8168D family. */
1313 { 0x7cf00000, 0x28300000, RTL_GIGA_MAC_VER_26 },
1314 { 0x7cf00000, 0x28100000, RTL_GIGA_MAC_VER_25 },
1315 { 0x7c800000, 0x28800000, RTL_GIGA_MAC_VER_27 },
1316 { 0x7c800000, 0x28000000, RTL_GIGA_MAC_VER_26 },
1317
1318 /* 8168C family. */
1319 { 0x7cf00000, 0x3cb00000, RTL_GIGA_MAC_VER_24 },
1320 { 0x7cf00000, 0x3c900000, RTL_GIGA_MAC_VER_23 },
1321 { 0x7cf00000, 0x3c800000, RTL_GIGA_MAC_VER_18 },
1322 { 0x7c800000, 0x3c800000, RTL_GIGA_MAC_VER_24 },
1323 { 0x7cf00000, 0x3c000000, RTL_GIGA_MAC_VER_19 },
1324 { 0x7cf00000, 0x3c200000, RTL_GIGA_MAC_VER_20 },
1325 { 0x7cf00000, 0x3c300000, RTL_GIGA_MAC_VER_21 },
1326 { 0x7cf00000, 0x3c400000, RTL_GIGA_MAC_VER_22 },
1327 { 0x7c800000, 0x3c000000, RTL_GIGA_MAC_VER_22 },
1328
1329 /* 8168B family. */
1330 { 0x7cf00000, 0x38000000, RTL_GIGA_MAC_VER_12 },
1331 { 0x7cf00000, 0x38500000, RTL_GIGA_MAC_VER_17 },
1332 { 0x7c800000, 0x38000000, RTL_GIGA_MAC_VER_17 },
1333 { 0x7c800000, 0x30000000, RTL_GIGA_MAC_VER_11 },
1334
1335 /* 8101 family. */
1336 { 0x7cf00000, 0x34a00000, RTL_GIGA_MAC_VER_09 },
1337 { 0x7cf00000, 0x24a00000, RTL_GIGA_MAC_VER_09 },
1338 { 0x7cf00000, 0x34900000, RTL_GIGA_MAC_VER_08 },
1339 { 0x7cf00000, 0x24900000, RTL_GIGA_MAC_VER_08 },
1340 { 0x7cf00000, 0x34800000, RTL_GIGA_MAC_VER_07 },
1341 { 0x7cf00000, 0x24800000, RTL_GIGA_MAC_VER_07 },
1342 { 0x7cf00000, 0x34000000, RTL_GIGA_MAC_VER_13 },
1343 { 0x7cf00000, 0x34300000, RTL_GIGA_MAC_VER_10 },
1344 { 0x7cf00000, 0x34200000, RTL_GIGA_MAC_VER_16 },
1345 { 0x7c800000, 0x34800000, RTL_GIGA_MAC_VER_09 },
1346 { 0x7c800000, 0x24800000, RTL_GIGA_MAC_VER_09 },
1347 { 0x7c800000, 0x34000000, RTL_GIGA_MAC_VER_16 },
1348 /* FIXME: where did these entries come from ? -- FR */
1349 { 0xfc800000, 0x38800000, RTL_GIGA_MAC_VER_15 },
1350 { 0xfc800000, 0x30800000, RTL_GIGA_MAC_VER_14 },
1351
1352 /* 8110 family. */
1353 { 0xfc800000, 0x98000000, RTL_GIGA_MAC_VER_06 },
1354 { 0xfc800000, 0x18000000, RTL_GIGA_MAC_VER_05 },
1355 { 0xfc800000, 0x10000000, RTL_GIGA_MAC_VER_04 },
1356 { 0xfc800000, 0x04000000, RTL_GIGA_MAC_VER_03 },
1357 { 0xfc800000, 0x00800000, RTL_GIGA_MAC_VER_02 },
1358 { 0xfc800000, 0x00000000, RTL_GIGA_MAC_VER_01 },
1359
1360 /* Catch-all */
1361 { 0x00000000, 0x00000000, RTL_GIGA_MAC_NONE }
1362 }, *p = mac_info;
1363 u32 reg;
1364
1365 reg = RTL_R32(TxConfig);
1366 while ((reg & p->mask) != p->val)
1367 p++;
1368 tp->mac_version = p->mac_version;
1369 }
1370
1371 static void rtl8169_print_mac_version(struct rtl8169_private *tp)
1372 {
1373 dprintk("mac_version = 0x%02x\n", tp->mac_version);
1374 }
1375
1376 struct phy_reg {
1377 u16 reg;
1378 u16 val;
1379 };
1380
1381 static void rtl_phy_write(void __iomem *ioaddr, const struct phy_reg *regs, int len)
1382 {
1383 while (len-- > 0) {
1384 mdio_write(ioaddr, regs->reg, regs->val);
1385 regs++;
1386 }
1387 }
1388
1389 static void rtl8169s_hw_phy_config(void __iomem *ioaddr)
1390 {
1391 static const struct phy_reg phy_reg_init[] = {
1392 { 0x1f, 0x0001 },
1393 { 0x06, 0x006e },
1394 { 0x08, 0x0708 },
1395 { 0x15, 0x4000 },
1396 { 0x18, 0x65c7 },
1397
1398 { 0x1f, 0x0001 },
1399 { 0x03, 0x00a1 },
1400 { 0x02, 0x0008 },
1401 { 0x01, 0x0120 },
1402 { 0x00, 0x1000 },
1403 { 0x04, 0x0800 },
1404 { 0x04, 0x0000 },
1405
1406 { 0x03, 0xff41 },
1407 { 0x02, 0xdf60 },
1408 { 0x01, 0x0140 },
1409 { 0x00, 0x0077 },
1410 { 0x04, 0x7800 },
1411 { 0x04, 0x7000 },
1412
1413 { 0x03, 0x802f },
1414 { 0x02, 0x4f02 },
1415 { 0x01, 0x0409 },
1416 { 0x00, 0xf0f9 },
1417 { 0x04, 0x9800 },
1418 { 0x04, 0x9000 },
1419
1420 { 0x03, 0xdf01 },
1421 { 0x02, 0xdf20 },
1422 { 0x01, 0xff95 },
1423 { 0x00, 0xba00 },
1424 { 0x04, 0xa800 },
1425 { 0x04, 0xa000 },
1426
1427 { 0x03, 0xff41 },
1428 { 0x02, 0xdf20 },
1429 { 0x01, 0x0140 },
1430 { 0x00, 0x00bb },
1431 { 0x04, 0xb800 },
1432 { 0x04, 0xb000 },
1433
1434 { 0x03, 0xdf41 },
1435 { 0x02, 0xdc60 },
1436 { 0x01, 0x6340 },
1437 { 0x00, 0x007d },
1438 { 0x04, 0xd800 },
1439 { 0x04, 0xd000 },
1440
1441 { 0x03, 0xdf01 },
1442 { 0x02, 0xdf20 },
1443 { 0x01, 0x100a },
1444 { 0x00, 0xa0ff },
1445 { 0x04, 0xf800 },
1446 { 0x04, 0xf000 },
1447
1448 { 0x1f, 0x0000 },
1449 { 0x0b, 0x0000 },
1450 { 0x00, 0x9200 }
1451 };
1452
1453 rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init));
1454 }
1455
1456 static void rtl8169sb_hw_phy_config(void __iomem *ioaddr)
1457 {
1458 static const struct phy_reg phy_reg_init[] = {
1459 { 0x1f, 0x0002 },
1460 { 0x01, 0x90d0 },
1461 { 0x1f, 0x0000 }
1462 };
1463
1464 rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init));
1465 }
1466
1467 static void rtl8169scd_hw_phy_config_quirk(struct rtl8169_private *tp,
1468 void __iomem *ioaddr)
1469 {
1470 struct pci_dev *pdev = tp->pci_dev;
1471 u16 vendor_id, device_id;
1472
1473 pci_read_config_word(pdev, PCI_SUBSYSTEM_VENDOR_ID, &vendor_id);
1474 pci_read_config_word(pdev, PCI_SUBSYSTEM_ID, &device_id);
1475
1476 if ((vendor_id != PCI_VENDOR_ID_GIGABYTE) || (device_id != 0xe000))
1477 return;
1478
1479 mdio_write(ioaddr, 0x1f, 0x0001);
1480 mdio_write(ioaddr, 0x10, 0xf01b);
1481 mdio_write(ioaddr, 0x1f, 0x0000);
1482 }
1483
1484 static void rtl8169scd_hw_phy_config(struct rtl8169_private *tp,
1485 void __iomem *ioaddr)
1486 {
1487 static const struct phy_reg phy_reg_init[] = {
1488 { 0x1f, 0x0001 },
1489 { 0x04, 0x0000 },
1490 { 0x03, 0x00a1 },
1491 { 0x02, 0x0008 },
1492 { 0x01, 0x0120 },
1493 { 0x00, 0x1000 },
1494 { 0x04, 0x0800 },
1495 { 0x04, 0x9000 },
1496 { 0x03, 0x802f },
1497 { 0x02, 0x4f02 },
1498 { 0x01, 0x0409 },
1499 { 0x00, 0xf099 },
1500 { 0x04, 0x9800 },
1501 { 0x04, 0xa000 },
1502 { 0x03, 0xdf01 },
1503 { 0x02, 0xdf20 },
1504 { 0x01, 0xff95 },
1505 { 0x00, 0xba00 },
1506 { 0x04, 0xa800 },
1507 { 0x04, 0xf000 },
1508 { 0x03, 0xdf01 },
1509 { 0x02, 0xdf20 },
1510 { 0x01, 0x101a },
1511 { 0x00, 0xa0ff },
1512 { 0x04, 0xf800 },
1513 { 0x04, 0x0000 },
1514 { 0x1f, 0x0000 },
1515
1516 { 0x1f, 0x0001 },
1517 { 0x10, 0xf41b },
1518 { 0x14, 0xfb54 },
1519 { 0x18, 0xf5c7 },
1520 { 0x1f, 0x0000 },
1521
1522 { 0x1f, 0x0001 },
1523 { 0x17, 0x0cc0 },
1524 { 0x1f, 0x0000 }
1525 };
1526
1527 rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init));
1528
1529 rtl8169scd_hw_phy_config_quirk(tp, ioaddr);
1530 }
1531
1532 static void rtl8169sce_hw_phy_config(void __iomem *ioaddr)
1533 {
1534 static const struct phy_reg phy_reg_init[] = {
1535 { 0x1f, 0x0001 },
1536 { 0x04, 0x0000 },
1537 { 0x03, 0x00a1 },
1538 { 0x02, 0x0008 },
1539 { 0x01, 0x0120 },
1540 { 0x00, 0x1000 },
1541 { 0x04, 0x0800 },
1542 { 0x04, 0x9000 },
1543 { 0x03, 0x802f },
1544 { 0x02, 0x4f02 },
1545 { 0x01, 0x0409 },
1546 { 0x00, 0xf099 },
1547 { 0x04, 0x9800 },
1548 { 0x04, 0xa000 },
1549 { 0x03, 0xdf01 },
1550 { 0x02, 0xdf20 },
1551 { 0x01, 0xff95 },
1552 { 0x00, 0xba00 },
1553 { 0x04, 0xa800 },
1554 { 0x04, 0xf000 },
1555 { 0x03, 0xdf01 },
1556 { 0x02, 0xdf20 },
1557 { 0x01, 0x101a },
1558 { 0x00, 0xa0ff },
1559 { 0x04, 0xf800 },
1560 { 0x04, 0x0000 },
1561 { 0x1f, 0x0000 },
1562
1563 { 0x1f, 0x0001 },
1564 { 0x0b, 0x8480 },
1565 { 0x1f, 0x0000 },
1566
1567 { 0x1f, 0x0001 },
1568 { 0x18, 0x67c7 },
1569 { 0x04, 0x2000 },
1570 { 0x03, 0x002f },
1571 { 0x02, 0x4360 },
1572 { 0x01, 0x0109 },
1573 { 0x00, 0x3022 },
1574 { 0x04, 0x2800 },
1575 { 0x1f, 0x0000 },
1576
1577 { 0x1f, 0x0001 },
1578 { 0x17, 0x0cc0 },
1579 { 0x1f, 0x0000 }
1580 };
1581
1582 rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init));
1583 }
1584
1585 static void rtl8168bb_hw_phy_config(void __iomem *ioaddr)
1586 {
1587 static const struct phy_reg phy_reg_init[] = {
1588 { 0x10, 0xf41b },
1589 { 0x1f, 0x0000 }
1590 };
1591
1592 mdio_write(ioaddr, 0x1f, 0x0001);
1593 mdio_patch(ioaddr, 0x16, 1 << 0);
1594
1595 rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init));
1596 }
1597
1598 static void rtl8168bef_hw_phy_config(void __iomem *ioaddr)
1599 {
1600 static const struct phy_reg phy_reg_init[] = {
1601 { 0x1f, 0x0001 },
1602 { 0x10, 0xf41b },
1603 { 0x1f, 0x0000 }
1604 };
1605
1606 rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init));
1607 }
1608
1609 static void rtl8168cp_1_hw_phy_config(void __iomem *ioaddr)
1610 {
1611 static const struct phy_reg phy_reg_init[] = {
1612 { 0x1f, 0x0000 },
1613 { 0x1d, 0x0f00 },
1614 { 0x1f, 0x0002 },
1615 { 0x0c, 0x1ec8 },
1616 { 0x1f, 0x0000 }
1617 };
1618
1619 rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init));
1620 }
1621
1622 static void rtl8168cp_2_hw_phy_config(void __iomem *ioaddr)
1623 {
1624 static const struct phy_reg phy_reg_init[] = {
1625 { 0x1f, 0x0001 },
1626 { 0x1d, 0x3d98 },
1627 { 0x1f, 0x0000 }
1628 };
1629
1630 mdio_write(ioaddr, 0x1f, 0x0000);
1631 mdio_patch(ioaddr, 0x14, 1 << 5);
1632 mdio_patch(ioaddr, 0x0d, 1 << 5);
1633
1634 rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init));
1635 }
1636
1637 static void rtl8168c_1_hw_phy_config(void __iomem *ioaddr)
1638 {
1639 static const struct phy_reg phy_reg_init[] = {
1640 { 0x1f, 0x0001 },
1641 { 0x12, 0x2300 },
1642 { 0x1f, 0x0002 },
1643 { 0x00, 0x88d4 },
1644 { 0x01, 0x82b1 },
1645 { 0x03, 0x7002 },
1646 { 0x08, 0x9e30 },
1647 { 0x09, 0x01f0 },
1648 { 0x0a, 0x5500 },
1649 { 0x0c, 0x00c8 },
1650 { 0x1f, 0x0003 },
1651 { 0x12, 0xc096 },
1652 { 0x16, 0x000a },
1653 { 0x1f, 0x0000 },
1654 { 0x1f, 0x0000 },
1655 { 0x09, 0x2000 },
1656 { 0x09, 0x0000 }
1657 };
1658
1659 rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init));
1660
1661 mdio_patch(ioaddr, 0x14, 1 << 5);
1662 mdio_patch(ioaddr, 0x0d, 1 << 5);
1663 mdio_write(ioaddr, 0x1f, 0x0000);
1664 }
1665
1666 static void rtl8168c_2_hw_phy_config(void __iomem *ioaddr)
1667 {
1668 static const struct phy_reg phy_reg_init[] = {
1669 { 0x1f, 0x0001 },
1670 { 0x12, 0x2300 },
1671 { 0x03, 0x802f },
1672 { 0x02, 0x4f02 },
1673 { 0x01, 0x0409 },
1674 { 0x00, 0xf099 },
1675 { 0x04, 0x9800 },
1676 { 0x04, 0x9000 },
1677 { 0x1d, 0x3d98 },
1678 { 0x1f, 0x0002 },
1679 { 0x0c, 0x7eb8 },
1680 { 0x06, 0x0761 },
1681 { 0x1f, 0x0003 },
1682 { 0x16, 0x0f0a },
1683 { 0x1f, 0x0000 }
1684 };
1685
1686 rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init));
1687
1688 mdio_patch(ioaddr, 0x16, 1 << 0);
1689 mdio_patch(ioaddr, 0x14, 1 << 5);
1690 mdio_patch(ioaddr, 0x0d, 1 << 5);
1691 mdio_write(ioaddr, 0x1f, 0x0000);
1692 }
1693
1694 static void rtl8168c_3_hw_phy_config(void __iomem *ioaddr)
1695 {
1696 static const struct phy_reg phy_reg_init[] = {
1697 { 0x1f, 0x0001 },
1698 { 0x12, 0x2300 },
1699 { 0x1d, 0x3d98 },
1700 { 0x1f, 0x0002 },
1701 { 0x0c, 0x7eb8 },
1702 { 0x06, 0x5461 },
1703 { 0x1f, 0x0003 },
1704 { 0x16, 0x0f0a },
1705 { 0x1f, 0x0000 }
1706 };
1707
1708 rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init));
1709
1710 mdio_patch(ioaddr, 0x16, 1 << 0);
1711 mdio_patch(ioaddr, 0x14, 1 << 5);
1712 mdio_patch(ioaddr, 0x0d, 1 << 5);
1713 mdio_write(ioaddr, 0x1f, 0x0000);
1714 }
1715
1716 static void rtl8168c_4_hw_phy_config(void __iomem *ioaddr)
1717 {
1718 rtl8168c_3_hw_phy_config(ioaddr);
1719 }
1720
1721 static void rtl8168d_1_hw_phy_config(void __iomem *ioaddr)
1722 {
1723 static const struct phy_reg phy_reg_init_0[] = {
1724 { 0x1f, 0x0001 },
1725 { 0x06, 0x4064 },
1726 { 0x07, 0x2863 },
1727 { 0x08, 0x059c },
1728 { 0x09, 0x26b4 },
1729 { 0x0a, 0x6a19 },
1730 { 0x0b, 0xdcc8 },
1731 { 0x10, 0xf06d },
1732 { 0x14, 0x7f68 },
1733 { 0x18, 0x7fd9 },
1734 { 0x1c, 0xf0ff },
1735 { 0x1d, 0x3d9c },
1736 { 0x1f, 0x0003 },
1737 { 0x12, 0xf49f },
1738 { 0x13, 0x070b },
1739 { 0x1a, 0x05ad },
1740 { 0x14, 0x94c0 }
1741 };
1742 static const struct phy_reg phy_reg_init_1[] = {
1743 { 0x1f, 0x0002 },
1744 { 0x06, 0x5561 },
1745 { 0x1f, 0x0005 },
1746 { 0x05, 0x8332 },
1747 { 0x06, 0x5561 }
1748 };
1749 static const struct phy_reg phy_reg_init_2[] = {
1750 { 0x1f, 0x0005 },
1751 { 0x05, 0xffc2 },
1752 { 0x1f, 0x0005 },
1753 { 0x05, 0x8000 },
1754 { 0x06, 0xf8f9 },
1755 { 0x06, 0xfaef },
1756 { 0x06, 0x59ee },
1757 { 0x06, 0xf8ea },
1758 { 0x06, 0x00ee },
1759 { 0x06, 0xf8eb },
1760 { 0x06, 0x00e0 },
1761 { 0x06, 0xf87c },
1762 { 0x06, 0xe1f8 },
1763 { 0x06, 0x7d59 },
1764 { 0x06, 0x0fef },
1765 { 0x06, 0x0139 },
1766 { 0x06, 0x029e },
1767 { 0x06, 0x06ef },
1768 { 0x06, 0x1039 },
1769 { 0x06, 0x089f },
1770 { 0x06, 0x2aee },
1771 { 0x06, 0xf8ea },
1772 { 0x06, 0x00ee },
1773 { 0x06, 0xf8eb },
1774 { 0x06, 0x01e0 },
1775 { 0x06, 0xf87c },
1776 { 0x06, 0xe1f8 },
1777 { 0x06, 0x7d58 },
1778 { 0x06, 0x409e },
1779 { 0x06, 0x0f39 },
1780 { 0x06, 0x46aa },
1781 { 0x06, 0x0bbf },
1782 { 0x06, 0x8290 },
1783 { 0x06, 0xd682 },
1784 { 0x06, 0x9802 },
1785 { 0x06, 0x014f },
1786 { 0x06, 0xae09 },
1787 { 0x06, 0xbf82 },
1788 { 0x06, 0x98d6 },
1789 { 0x06, 0x82a0 },
1790 { 0x06, 0x0201 },
1791 { 0x06, 0x4fef },
1792 { 0x06, 0x95fe },
1793 { 0x06, 0xfdfc },
1794 { 0x06, 0x05f8 },
1795 { 0x06, 0xf9fa },
1796 { 0x06, 0xeef8 },
1797 { 0x06, 0xea00 },
1798 { 0x06, 0xeef8 },
1799 { 0x06, 0xeb00 },
1800 { 0x06, 0xe2f8 },
1801 { 0x06, 0x7ce3 },
1802 { 0x06, 0xf87d },
1803 { 0x06, 0xa511 },
1804 { 0x06, 0x1112 },
1805 { 0x06, 0xd240 },
1806 { 0x06, 0xd644 },
1807 { 0x06, 0x4402 },
1808 { 0x06, 0x8217 },
1809 { 0x06, 0xd2a0 },
1810 { 0x06, 0xd6aa },
1811 { 0x06, 0xaa02 },
1812 { 0x06, 0x8217 },
1813 { 0x06, 0xae0f },
1814 { 0x06, 0xa544 },
1815 { 0x06, 0x4402 },
1816 { 0x06, 0xae4d },
1817 { 0x06, 0xa5aa },
1818 { 0x06, 0xaa02 },
1819 { 0x06, 0xae47 },
1820 { 0x06, 0xaf82 },
1821 { 0x06, 0x13ee },
1822 { 0x06, 0x834e },
1823 { 0x06, 0x00ee },
1824 { 0x06, 0x834d },
1825 { 0x06, 0x0fee },
1826 { 0x06, 0x834c },
1827 { 0x06, 0x0fee },
1828 { 0x06, 0x834f },
1829 { 0x06, 0x00ee },
1830 { 0x06, 0x8351 },
1831 { 0x06, 0x00ee },
1832 { 0x06, 0x834a },
1833 { 0x06, 0xffee },
1834 { 0x06, 0x834b },
1835 { 0x06, 0xffe0 },
1836 { 0x06, 0x8330 },
1837 { 0x06, 0xe183 },
1838 { 0x06, 0x3158 },
1839 { 0x06, 0xfee4 },
1840 { 0x06, 0xf88a },
1841 { 0x06, 0xe5f8 },
1842 { 0x06, 0x8be0 },
1843 { 0x06, 0x8332 },
1844 { 0x06, 0xe183 },
1845 { 0x06, 0x3359 },
1846 { 0x06, 0x0fe2 },
1847 { 0x06, 0x834d },
1848 { 0x06, 0x0c24 },
1849 { 0x06, 0x5af0 },
1850 { 0x06, 0x1e12 },
1851 { 0x06, 0xe4f8 },
1852 { 0x06, 0x8ce5 },
1853 { 0x06, 0xf88d },
1854 { 0x06, 0xaf82 },
1855 { 0x06, 0x13e0 },
1856 { 0x06, 0x834f },
1857 { 0x06, 0x10e4 },
1858 { 0x06, 0x834f },
1859 { 0x06, 0xe083 },
1860 { 0x06, 0x4e78 },
1861 { 0x06, 0x009f },
1862 { 0x06, 0x0ae0 },
1863 { 0x06, 0x834f },
1864 { 0x06, 0xa010 },
1865 { 0x06, 0xa5ee },
1866 { 0x06, 0x834e },
1867 { 0x06, 0x01e0 },
1868 { 0x06, 0x834e },
1869 { 0x06, 0x7805 },
1870 { 0x06, 0x9e9a },
1871 { 0x06, 0xe083 },
1872 { 0x06, 0x4e78 },
1873 { 0x06, 0x049e },
1874 { 0x06, 0x10e0 },
1875 { 0x06, 0x834e },
1876 { 0x06, 0x7803 },
1877 { 0x06, 0x9e0f },
1878 { 0x06, 0xe083 },
1879 { 0x06, 0x4e78 },
1880 { 0x06, 0x019e },
1881 { 0x06, 0x05ae },
1882 { 0x06, 0x0caf },
1883 { 0x06, 0x81f8 },
1884 { 0x06, 0xaf81 },
1885 { 0x06, 0xa3af },
1886 { 0x06, 0x81dc },
1887 { 0x06, 0xaf82 },
1888 { 0x06, 0x13ee },
1889 { 0x06, 0x8348 },
1890 { 0x06, 0x00ee },
1891 { 0x06, 0x8349 },
1892 { 0x06, 0x00e0 },
1893 { 0x06, 0x8351 },
1894 { 0x06, 0x10e4 },
1895 { 0x06, 0x8351 },
1896 { 0x06, 0x5801 },
1897 { 0x06, 0x9fea },
1898 { 0x06, 0xd000 },
1899 { 0x06, 0xd180 },
1900 { 0x06, 0x1f66 },
1901 { 0x06, 0xe2f8 },
1902 { 0x06, 0xeae3 },
1903 { 0x06, 0xf8eb },
1904 { 0x06, 0x5af8 },
1905 { 0x06, 0x1e20 },
1906 { 0x06, 0xe6f8 },
1907 { 0x06, 0xeae5 },
1908 { 0x06, 0xf8eb },
1909 { 0x06, 0xd302 },
1910 { 0x06, 0xb3fe },
1911 { 0x06, 0xe2f8 },
1912 { 0x06, 0x7cef },
1913 { 0x06, 0x325b },
1914 { 0x06, 0x80e3 },
1915 { 0x06, 0xf87d },
1916 { 0x06, 0x9e03 },
1917 { 0x06, 0x7dff },
1918 { 0x06, 0xff0d },
1919 { 0x06, 0x581c },
1920 { 0x06, 0x551a },
1921 { 0x06, 0x6511 },
1922 { 0x06, 0xa190 },
1923 { 0x06, 0xd3e2 },
1924 { 0x06, 0x8348 },
1925 { 0x06, 0xe383 },
1926 { 0x06, 0x491b },
1927 { 0x06, 0x56ab },
1928 { 0x06, 0x08ef },
1929 { 0x06, 0x56e6 },
1930 { 0x06, 0x8348 },
1931 { 0x06, 0xe783 },
1932 { 0x06, 0x4910 },
1933 { 0x06, 0xd180 },
1934 { 0x06, 0x1f66 },
1935 { 0x06, 0xa004 },
1936 { 0x06, 0xb9e2 },
1937 { 0x06, 0x8348 },
1938 { 0x06, 0xe383 },
1939 { 0x06, 0x49ef },
1940 { 0x06, 0x65e2 },
1941 { 0x06, 0x834a },
1942 { 0x06, 0xe383 },
1943 { 0x06, 0x4b1b },
1944 { 0x06, 0x56aa },
1945 { 0x06, 0x0eef },
1946 { 0x06, 0x56e6 },
1947 { 0x06, 0x834a },
1948 { 0x06, 0xe783 },
1949 { 0x06, 0x4be2 },
1950 { 0x06, 0x834d },
1951 { 0x06, 0xe683 },
1952 { 0x06, 0x4ce0 },
1953 { 0x06, 0x834d },
1954 { 0x06, 0xa000 },
1955 { 0x06, 0x0caf },
1956 { 0x06, 0x81dc },
1957 { 0x06, 0xe083 },
1958 { 0x06, 0x4d10 },
1959 { 0x06, 0xe483 },
1960 { 0x06, 0x4dae },
1961 { 0x06, 0x0480 },
1962 { 0x06, 0xe483 },
1963 { 0x06, 0x4de0 },
1964 { 0x06, 0x834e },
1965 { 0x06, 0x7803 },
1966 { 0x06, 0x9e0b },
1967 { 0x06, 0xe083 },
1968 { 0x06, 0x4e78 },
1969 { 0x06, 0x049e },
1970 { 0x06, 0x04ee },
1971 { 0x06, 0x834e },
1972 { 0x06, 0x02e0 },
1973 { 0x06, 0x8332 },
1974 { 0x06, 0xe183 },
1975 { 0x06, 0x3359 },
1976 { 0x06, 0x0fe2 },
1977 { 0x06, 0x834d },
1978 { 0x06, 0x0c24 },
1979 { 0x06, 0x5af0 },
1980 { 0x06, 0x1e12 },
1981 { 0x06, 0xe4f8 },
1982 { 0x06, 0x8ce5 },
1983 { 0x06, 0xf88d },
1984 { 0x06, 0xe083 },
1985 { 0x06, 0x30e1 },
1986 { 0x06, 0x8331 },
1987 { 0x06, 0x6801 },
1988 { 0x06, 0xe4f8 },
1989 { 0x06, 0x8ae5 },
1990 { 0x06, 0xf88b },
1991 { 0x06, 0xae37 },
1992 { 0x06, 0xee83 },
1993 { 0x06, 0x4e03 },
1994 { 0x06, 0xe083 },
1995 { 0x06, 0x4ce1 },
1996 { 0x06, 0x834d },
1997 { 0x06, 0x1b01 },
1998 { 0x06, 0x9e04 },
1999 { 0x06, 0xaaa1 },
2000 { 0x06, 0xaea8 },
2001 { 0x06, 0xee83 },
2002 { 0x06, 0x4e04 },
2003 { 0x06, 0xee83 },
2004 { 0x06, 0x4f00 },
2005 { 0x06, 0xaeab },
2006 { 0x06, 0xe083 },
2007 { 0x06, 0x4f78 },
2008 { 0x06, 0x039f },
2009 { 0x06, 0x14ee },
2010 { 0x06, 0x834e },
2011 { 0x06, 0x05d2 },
2012 { 0x06, 0x40d6 },
2013 { 0x06, 0x5554 },
2014 { 0x06, 0x0282 },
2015 { 0x06, 0x17d2 },
2016 { 0x06, 0xa0d6 },
2017 { 0x06, 0xba00 },
2018 { 0x06, 0x0282 },
2019 { 0x06, 0x17fe },
2020 { 0x06, 0xfdfc },
2021 { 0x06, 0x05f8 },
2022 { 0x06, 0xe0f8 },
2023 { 0x06, 0x60e1 },
2024 { 0x06, 0xf861 },
2025 { 0x06, 0x6802 },
2026 { 0x06, 0xe4f8 },
2027 { 0x06, 0x60e5 },
2028 { 0x06, 0xf861 },
2029 { 0x06, 0xe0f8 },
2030 { 0x06, 0x48e1 },
2031 { 0x06, 0xf849 },
2032 { 0x06, 0x580f },
2033 { 0x06, 0x1e02 },
2034 { 0x06, 0xe4f8 },
2035 { 0x06, 0x48e5 },
2036 { 0x06, 0xf849 },
2037 { 0x06, 0xd000 },
2038 { 0x06, 0x0282 },
2039 { 0x06, 0x5bbf },
2040 { 0x06, 0x8350 },
2041 { 0x06, 0xef46 },
2042 { 0x06, 0xdc19 },
2043 { 0x06, 0xddd0 },
2044 { 0x06, 0x0102 },
2045 { 0x06, 0x825b },
2046 { 0x06, 0x0282 },
2047 { 0x06, 0x77e0 },
2048 { 0x06, 0xf860 },
2049 { 0x06, 0xe1f8 },
2050 { 0x06, 0x6158 },
2051 { 0x06, 0xfde4 },
2052 { 0x06, 0xf860 },
2053 { 0x06, 0xe5f8 },
2054 { 0x06, 0x61fc },
2055 { 0x06, 0x04f9 },
2056 { 0x06, 0xfafb },
2057 { 0x06, 0xc6bf },
2058 { 0x06, 0xf840 },
2059 { 0x06, 0xbe83 },
2060 { 0x06, 0x50a0 },
2061 { 0x06, 0x0101 },
2062 { 0x06, 0x071b },
2063 { 0x06, 0x89cf },
2064 { 0x06, 0xd208 },
2065 { 0x06, 0xebdb },
2066 { 0x06, 0x19b2 },
2067 { 0x06, 0xfbff },
2068 { 0x06, 0xfefd },
2069 { 0x06, 0x04f8 },
2070 { 0x06, 0xe0f8 },
2071 { 0x06, 0x48e1 },
2072 { 0x06, 0xf849 },
2073 { 0x06, 0x6808 },
2074 { 0x06, 0xe4f8 },
2075 { 0x06, 0x48e5 },
2076 { 0x06, 0xf849 },
2077 { 0x06, 0x58f7 },
2078 { 0x06, 0xe4f8 },
2079 { 0x06, 0x48e5 },
2080 { 0x06, 0xf849 },
2081 { 0x06, 0xfc04 },
2082 { 0x06, 0x4d20 },
2083 { 0x06, 0x0002 },
2084 { 0x06, 0x4e22 },
2085 { 0x06, 0x0002 },
2086 { 0x06, 0x4ddf },
2087 { 0x06, 0xff01 },
2088 { 0x06, 0x4edd },
2089 { 0x06, 0xff01 },
2090 { 0x05, 0x83d4 },
2091 { 0x06, 0x8000 },
2092 { 0x05, 0x83d8 },
2093 { 0x06, 0x8051 },
2094 { 0x02, 0x6010 },
2095 { 0x03, 0xdc00 },
2096 { 0x05, 0xfff6 },
2097 { 0x06, 0x00fc },
2098 { 0x1f, 0x0000 },
2099
2100 { 0x1f, 0x0000 },
2101 { 0x0d, 0xf880 },
2102 { 0x1f, 0x0000 }
2103 };
2104
2105 rtl_phy_write(ioaddr, phy_reg_init_0, ARRAY_SIZE(phy_reg_init_0));
2106
2107 mdio_write(ioaddr, 0x1f, 0x0002);
2108 mdio_plus_minus(ioaddr, 0x0b, 0x0010, 0x00ef);
2109 mdio_plus_minus(ioaddr, 0x0c, 0xa200, 0x5d00);
2110
2111 rtl_phy_write(ioaddr, phy_reg_init_1, ARRAY_SIZE(phy_reg_init_1));
2112
2113 if (rtl8168d_efuse_read(ioaddr, 0x01) == 0xb1) {
2114 static const struct phy_reg phy_reg_init[] = {
2115 { 0x1f, 0x0002 },
2116 { 0x05, 0x669a },
2117 { 0x1f, 0x0005 },
2118 { 0x05, 0x8330 },
2119 { 0x06, 0x669a },
2120 { 0x1f, 0x0002 }
2121 };
2122 int val;
2123
2124 rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init));
2125
2126 val = mdio_read(ioaddr, 0x0d);
2127
2128 if ((val & 0x00ff) != 0x006c) {
2129 static const u32 set[] = {
2130 0x0065, 0x0066, 0x0067, 0x0068,
2131 0x0069, 0x006a, 0x006b, 0x006c
2132 };
2133 int i;
2134
2135 mdio_write(ioaddr, 0x1f, 0x0002);
2136
2137 val &= 0xff00;
2138 for (i = 0; i < ARRAY_SIZE(set); i++)
2139 mdio_write(ioaddr, 0x0d, val | set[i]);
2140 }
2141 } else {
2142 static const struct phy_reg phy_reg_init[] = {
2143 { 0x1f, 0x0002 },
2144 { 0x05, 0x6662 },
2145 { 0x1f, 0x0005 },
2146 { 0x05, 0x8330 },
2147 { 0x06, 0x6662 }
2148 };
2149
2150 rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init));
2151 }
2152
2153 mdio_write(ioaddr, 0x1f, 0x0002);
2154 mdio_patch(ioaddr, 0x0d, 0x0300);
2155 mdio_patch(ioaddr, 0x0f, 0x0010);
2156
2157 mdio_write(ioaddr, 0x1f, 0x0002);
2158 mdio_plus_minus(ioaddr, 0x02, 0x0100, 0x0600);
2159 mdio_plus_minus(ioaddr, 0x03, 0x0000, 0xe000);
2160
2161 rtl_phy_write(ioaddr, phy_reg_init_2, ARRAY_SIZE(phy_reg_init_2));
2162 }
2163
2164 static void rtl8168d_2_hw_phy_config(void __iomem *ioaddr)
2165 {
2166 static const struct phy_reg phy_reg_init_0[] = {
2167 { 0x1f, 0x0001 },
2168 { 0x06, 0x4064 },
2169 { 0x07, 0x2863 },
2170 { 0x08, 0x059c },
2171 { 0x09, 0x26b4 },
2172 { 0x0a, 0x6a19 },
2173 { 0x0b, 0xdcc8 },
2174 { 0x10, 0xf06d },
2175 { 0x14, 0x7f68 },
2176 { 0x18, 0x7fd9 },
2177 { 0x1c, 0xf0ff },
2178 { 0x1d, 0x3d9c },
2179 { 0x1f, 0x0003 },
2180 { 0x12, 0xf49f },
2181 { 0x13, 0x070b },
2182 { 0x1a, 0x05ad },
2183 { 0x14, 0x94c0 },
2184
2185 { 0x1f, 0x0002 },
2186 { 0x06, 0x5561 },
2187 { 0x1f, 0x0005 },
2188 { 0x05, 0x8332 },
2189 { 0x06, 0x5561 }
2190 };
2191 static const struct phy_reg phy_reg_init_1[] = {
2192 { 0x1f, 0x0005 },
2193 { 0x05, 0xffc2 },
2194 { 0x1f, 0x0005 },
2195 { 0x05, 0x8000 },
2196 { 0x06, 0xf8f9 },
2197 { 0x06, 0xfaee },
2198 { 0x06, 0xf8ea },
2199 { 0x06, 0x00ee },
2200 { 0x06, 0xf8eb },
2201 { 0x06, 0x00e2 },
2202 { 0x06, 0xf87c },
2203 { 0x06, 0xe3f8 },
2204 { 0x06, 0x7da5 },
2205 { 0x06, 0x1111 },
2206 { 0x06, 0x12d2 },
2207 { 0x06, 0x40d6 },
2208 { 0x06, 0x4444 },
2209 { 0x06, 0x0281 },
2210 { 0x06, 0xc6d2 },
2211 { 0x06, 0xa0d6 },
2212 { 0x06, 0xaaaa },
2213 { 0x06, 0x0281 },
2214 { 0x06, 0xc6ae },
2215 { 0x06, 0x0fa5 },
2216 { 0x06, 0x4444 },
2217 { 0x06, 0x02ae },
2218 { 0x06, 0x4da5 },
2219 { 0x06, 0xaaaa },
2220 { 0x06, 0x02ae },
2221 { 0x06, 0x47af },
2222 { 0x06, 0x81c2 },
2223 { 0x06, 0xee83 },
2224 { 0x06, 0x4e00 },
2225 { 0x06, 0xee83 },
2226 { 0x06, 0x4d0f },
2227 { 0x06, 0xee83 },
2228 { 0x06, 0x4c0f },
2229 { 0x06, 0xee83 },
2230 { 0x06, 0x4f00 },
2231 { 0x06, 0xee83 },
2232 { 0x06, 0x5100 },
2233 { 0x06, 0xee83 },
2234 { 0x06, 0x4aff },
2235 { 0x06, 0xee83 },
2236 { 0x06, 0x4bff },
2237 { 0x06, 0xe083 },
2238 { 0x06, 0x30e1 },
2239 { 0x06, 0x8331 },
2240 { 0x06, 0x58fe },
2241 { 0x06, 0xe4f8 },
2242 { 0x06, 0x8ae5 },
2243 { 0x06, 0xf88b },
2244 { 0x06, 0xe083 },
2245 { 0x06, 0x32e1 },
2246 { 0x06, 0x8333 },
2247 { 0x06, 0x590f },
2248 { 0x06, 0xe283 },
2249 { 0x06, 0x4d0c },
2250 { 0x06, 0x245a },
2251 { 0x06, 0xf01e },
2252 { 0x06, 0x12e4 },
2253 { 0x06, 0xf88c },
2254 { 0x06, 0xe5f8 },
2255 { 0x06, 0x8daf },
2256 { 0x06, 0x81c2 },
2257 { 0x06, 0xe083 },
2258 { 0x06, 0x4f10 },
2259 { 0x06, 0xe483 },
2260 { 0x06, 0x4fe0 },
2261 { 0x06, 0x834e },
2262 { 0x06, 0x7800 },
2263 { 0x06, 0x9f0a },
2264 { 0x06, 0xe083 },
2265 { 0x06, 0x4fa0 },
2266 { 0x06, 0x10a5 },
2267 { 0x06, 0xee83 },
2268 { 0x06, 0x4e01 },
2269 { 0x06, 0xe083 },
2270 { 0x06, 0x4e78 },
2271 { 0x06, 0x059e },
2272 { 0x06, 0x9ae0 },
2273 { 0x06, 0x834e },
2274 { 0x06, 0x7804 },
2275 { 0x06, 0x9e10 },
2276 { 0x06, 0xe083 },
2277 { 0x06, 0x4e78 },
2278 { 0x06, 0x039e },
2279 { 0x06, 0x0fe0 },
2280 { 0x06, 0x834e },
2281 { 0x06, 0x7801 },
2282 { 0x06, 0x9e05 },
2283 { 0x06, 0xae0c },
2284 { 0x06, 0xaf81 },
2285 { 0x06, 0xa7af },
2286 { 0x06, 0x8152 },
2287 { 0x06, 0xaf81 },
2288 { 0x06, 0x8baf },
2289 { 0x06, 0x81c2 },
2290 { 0x06, 0xee83 },
2291 { 0x06, 0x4800 },
2292 { 0x06, 0xee83 },
2293 { 0x06, 0x4900 },
2294 { 0x06, 0xe083 },
2295 { 0x06, 0x5110 },
2296 { 0x06, 0xe483 },
2297 { 0x06, 0x5158 },
2298 { 0x06, 0x019f },
2299 { 0x06, 0xead0 },
2300 { 0x06, 0x00d1 },
2301 { 0x06, 0x801f },
2302 { 0x06, 0x66e2 },
2303 { 0x06, 0xf8ea },
2304 { 0x06, 0xe3f8 },
2305 { 0x06, 0xeb5a },
2306 { 0x06, 0xf81e },
2307 { 0x06, 0x20e6 },
2308 { 0x06, 0xf8ea },
2309 { 0x06, 0xe5f8 },
2310 { 0x06, 0xebd3 },
2311 { 0x06, 0x02b3 },
2312 { 0x06, 0xfee2 },
2313 { 0x06, 0xf87c },
2314 { 0x06, 0xef32 },
2315 { 0x06, 0x5b80 },
2316 { 0x06, 0xe3f8 },
2317 { 0x06, 0x7d9e },
2318 { 0x06, 0x037d },
2319 { 0x06, 0xffff },
2320 { 0x06, 0x0d58 },
2321 { 0x06, 0x1c55 },
2322 { 0x06, 0x1a65 },
2323 { 0x06, 0x11a1 },
2324 { 0x06, 0x90d3 },
2325 { 0x06, 0xe283 },
2326 { 0x06, 0x48e3 },
2327 { 0x06, 0x8349 },
2328 { 0x06, 0x1b56 },
2329 { 0x06, 0xab08 },
2330 { 0x06, 0xef56 },
2331 { 0x06, 0xe683 },
2332 { 0x06, 0x48e7 },
2333 { 0x06, 0x8349 },
2334 { 0x06, 0x10d1 },
2335 { 0x06, 0x801f },
2336 { 0x06, 0x66a0 },
2337 { 0x06, 0x04b9 },
2338 { 0x06, 0xe283 },
2339 { 0x06, 0x48e3 },
2340 { 0x06, 0x8349 },
2341 { 0x06, 0xef65 },
2342 { 0x06, 0xe283 },
2343 { 0x06, 0x4ae3 },
2344 { 0x06, 0x834b },
2345 { 0x06, 0x1b56 },
2346 { 0x06, 0xaa0e },
2347 { 0x06, 0xef56 },
2348 { 0x06, 0xe683 },
2349 { 0x06, 0x4ae7 },
2350 { 0x06, 0x834b },
2351 { 0x06, 0xe283 },
2352 { 0x06, 0x4de6 },
2353 { 0x06, 0x834c },
2354 { 0x06, 0xe083 },
2355 { 0x06, 0x4da0 },
2356 { 0x06, 0x000c },
2357 { 0x06, 0xaf81 },
2358 { 0x06, 0x8be0 },
2359 { 0x06, 0x834d },
2360 { 0x06, 0x10e4 },
2361 { 0x06, 0x834d },
2362 { 0x06, 0xae04 },
2363 { 0x06, 0x80e4 },
2364 { 0x06, 0x834d },
2365 { 0x06, 0xe083 },
2366 { 0x06, 0x4e78 },
2367 { 0x06, 0x039e },
2368 { 0x06, 0x0be0 },
2369 { 0x06, 0x834e },
2370 { 0x06, 0x7804 },
2371 { 0x06, 0x9e04 },
2372 { 0x06, 0xee83 },
2373 { 0x06, 0x4e02 },
2374 { 0x06, 0xe083 },
2375 { 0x06, 0x32e1 },
2376 { 0x06, 0x8333 },
2377 { 0x06, 0x590f },
2378 { 0x06, 0xe283 },
2379 { 0x06, 0x4d0c },
2380 { 0x06, 0x245a },
2381 { 0x06, 0xf01e },
2382 { 0x06, 0x12e4 },
2383 { 0x06, 0xf88c },
2384 { 0x06, 0xe5f8 },
2385 { 0x06, 0x8de0 },
2386 { 0x06, 0x8330 },
2387 { 0x06, 0xe183 },
2388 { 0x06, 0x3168 },
2389 { 0x06, 0x01e4 },
2390 { 0x06, 0xf88a },
2391 { 0x06, 0xe5f8 },
2392 { 0x06, 0x8bae },
2393 { 0x06, 0x37ee },
2394 { 0x06, 0x834e },
2395 { 0x06, 0x03e0 },
2396 { 0x06, 0x834c },
2397 { 0x06, 0xe183 },
2398 { 0x06, 0x4d1b },
2399 { 0x06, 0x019e },
2400 { 0x06, 0x04aa },
2401 { 0x06, 0xa1ae },
2402 { 0x06, 0xa8ee },
2403 { 0x06, 0x834e },
2404 { 0x06, 0x04ee },
2405 { 0x06, 0x834f },
2406 { 0x06, 0x00ae },
2407 { 0x06, 0xabe0 },
2408 { 0x06, 0x834f },
2409 { 0x06, 0x7803 },
2410 { 0x06, 0x9f14 },
2411 { 0x06, 0xee83 },
2412 { 0x06, 0x4e05 },
2413 { 0x06, 0xd240 },
2414 { 0x06, 0xd655 },
2415 { 0x06, 0x5402 },
2416 { 0x06, 0x81c6 },
2417 { 0x06, 0xd2a0 },
2418 { 0x06, 0xd6ba },
2419 { 0x06, 0x0002 },
2420 { 0x06, 0x81c6 },
2421 { 0x06, 0xfefd },
2422 { 0x06, 0xfc05 },
2423 { 0x06, 0xf8e0 },
2424 { 0x06, 0xf860 },
2425 { 0x06, 0xe1f8 },
2426 { 0x06, 0x6168 },
2427 { 0x06, 0x02e4 },
2428 { 0x06, 0xf860 },
2429 { 0x06, 0xe5f8 },
2430 { 0x06, 0x61e0 },
2431 { 0x06, 0xf848 },
2432 { 0x06, 0xe1f8 },
2433 { 0x06, 0x4958 },
2434 { 0x06, 0x0f1e },
2435 { 0x06, 0x02e4 },
2436 { 0x06, 0xf848 },
2437 { 0x06, 0xe5f8 },
2438 { 0x06, 0x49d0 },
2439 { 0x06, 0x0002 },
2440 { 0x06, 0x820a },
2441 { 0x06, 0xbf83 },
2442 { 0x06, 0x50ef },
2443 { 0x06, 0x46dc },
2444 { 0x06, 0x19dd },
2445 { 0x06, 0xd001 },
2446 { 0x06, 0x0282 },
2447 { 0x06, 0x0a02 },
2448 { 0x06, 0x8226 },
2449 { 0x06, 0xe0f8 },
2450 { 0x06, 0x60e1 },
2451 { 0x06, 0xf861 },
2452 { 0x06, 0x58fd },
2453 { 0x06, 0xe4f8 },
2454 { 0x06, 0x60e5 },
2455 { 0x06, 0xf861 },
2456 { 0x06, 0xfc04 },
2457 { 0x06, 0xf9fa },
2458 { 0x06, 0xfbc6 },
2459 { 0x06, 0xbff8 },
2460 { 0x06, 0x40be },
2461 { 0x06, 0x8350 },
2462 { 0x06, 0xa001 },
2463 { 0x06, 0x0107 },
2464 { 0x06, 0x1b89 },
2465 { 0x06, 0xcfd2 },
2466 { 0x06, 0x08eb },
2467 { 0x06, 0xdb19 },
2468 { 0x06, 0xb2fb },
2469 { 0x06, 0xfffe },
2470 { 0x06, 0xfd04 },
2471 { 0x06, 0xf8e0 },
2472 { 0x06, 0xf848 },
2473 { 0x06, 0xe1f8 },
2474 { 0x06, 0x4968 },
2475 { 0x06, 0x08e4 },
2476 { 0x06, 0xf848 },
2477 { 0x06, 0xe5f8 },
2478 { 0x06, 0x4958 },
2479 { 0x06, 0xf7e4 },
2480 { 0x06, 0xf848 },
2481 { 0x06, 0xe5f8 },
2482 { 0x06, 0x49fc },
2483 { 0x06, 0x044d },
2484 { 0x06, 0x2000 },
2485 { 0x06, 0x024e },
2486 { 0x06, 0x2200 },
2487 { 0x06, 0x024d },
2488 { 0x06, 0xdfff },
2489 { 0x06, 0x014e },
2490 { 0x06, 0xddff },
2491 { 0x06, 0x0100 },
2492 { 0x05, 0x83d8 },
2493 { 0x06, 0x8000 },
2494 { 0x03, 0xdc00 },
2495 { 0x05, 0xfff6 },
2496 { 0x06, 0x00fc },
2497 { 0x1f, 0x0000 },
2498
2499 { 0x1f, 0x0000 },
2500 { 0x0d, 0xf880 },
2501 { 0x1f, 0x0000 }
2502 };
2503
2504 rtl_phy_write(ioaddr, phy_reg_init_0, ARRAY_SIZE(phy_reg_init_0));
2505
2506 if (rtl8168d_efuse_read(ioaddr, 0x01) == 0xb1) {
2507 static const struct phy_reg phy_reg_init[] = {
2508 { 0x1f, 0x0002 },
2509 { 0x05, 0x669a },
2510 { 0x1f, 0x0005 },
2511 { 0x05, 0x8330 },
2512 { 0x06, 0x669a },
2513
2514 { 0x1f, 0x0002 }
2515 };
2516 int val;
2517
2518 rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init));
2519
2520 val = mdio_read(ioaddr, 0x0d);
2521 if ((val & 0x00ff) != 0x006c) {
2522 u32 set[] = {
2523 0x0065, 0x0066, 0x0067, 0x0068,
2524 0x0069, 0x006a, 0x006b, 0x006c
2525 };
2526 int i;
2527
2528 mdio_write(ioaddr, 0x1f, 0x0002);
2529
2530 val &= 0xff00;
2531 for (i = 0; i < ARRAY_SIZE(set); i++)
2532 mdio_write(ioaddr, 0x0d, val | set[i]);
2533 }
2534 } else {
2535 static const struct phy_reg phy_reg_init[] = {
2536 { 0x1f, 0x0002 },
2537 { 0x05, 0x2642 },
2538 { 0x1f, 0x0005 },
2539 { 0x05, 0x8330 },
2540 { 0x06, 0x2642 }
2541 };
2542
2543 rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init));
2544 }
2545
2546 mdio_write(ioaddr, 0x1f, 0x0002);
2547 mdio_plus_minus(ioaddr, 0x02, 0x0100, 0x0600);
2548 mdio_plus_minus(ioaddr, 0x03, 0x0000, 0xe000);
2549
2550 mdio_write(ioaddr, 0x1f, 0x0001);
2551 mdio_write(ioaddr, 0x17, 0x0cc0);
2552
2553 mdio_write(ioaddr, 0x1f, 0x0002);
2554 mdio_patch(ioaddr, 0x0f, 0x0017);
2555
2556 rtl_phy_write(ioaddr, phy_reg_init_1, ARRAY_SIZE(phy_reg_init_1));
2557 }
2558
2559 static void rtl8168d_3_hw_phy_config(void __iomem *ioaddr)
2560 {
2561 static const struct phy_reg phy_reg_init[] = {
2562 { 0x1f, 0x0002 },
2563 { 0x10, 0x0008 },
2564 { 0x0d, 0x006c },
2565
2566 { 0x1f, 0x0000 },
2567 { 0x0d, 0xf880 },
2568
2569 { 0x1f, 0x0001 },
2570 { 0x17, 0x0cc0 },
2571
2572 { 0x1f, 0x0001 },
2573 { 0x0b, 0xa4d8 },
2574 { 0x09, 0x281c },
2575 { 0x07, 0x2883 },
2576 { 0x0a, 0x6b35 },
2577 { 0x1d, 0x3da4 },
2578 { 0x1c, 0xeffd },
2579 { 0x14, 0x7f52 },
2580 { 0x18, 0x7fc6 },
2581 { 0x08, 0x0601 },
2582 { 0x06, 0x4063 },
2583 { 0x10, 0xf074 },
2584 { 0x1f, 0x0003 },
2585 { 0x13, 0x0789 },
2586 { 0x12, 0xf4bd },
2587 { 0x1a, 0x04fd },
2588 { 0x14, 0x84b0 },
2589 { 0x1f, 0x0000 },
2590 { 0x00, 0x9200 },
2591
2592 { 0x1f, 0x0005 },
2593 { 0x01, 0x0340 },
2594 { 0x1f, 0x0001 },
2595 { 0x04, 0x4000 },
2596 { 0x03, 0x1d21 },
2597 { 0x02, 0x0c32 },
2598 { 0x01, 0x0200 },
2599 { 0x00, 0x5554 },
2600 { 0x04, 0x4800 },
2601 { 0x04, 0x4000 },
2602 { 0x04, 0xf000 },
2603 { 0x03, 0xdf01 },
2604 { 0x02, 0xdf20 },
2605 { 0x01, 0x101a },
2606 { 0x00, 0xa0ff },
2607 { 0x04, 0xf800 },
2608 { 0x04, 0xf000 },
2609 { 0x1f, 0x0000 },
2610
2611 { 0x1f, 0x0007 },
2612 { 0x1e, 0x0023 },
2613 { 0x16, 0x0000 },
2614 { 0x1f, 0x0000 }
2615 };
2616
2617 rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init));
2618 }
2619
2620 static void rtl8102e_hw_phy_config(void __iomem *ioaddr)
2621 {
2622 static const struct phy_reg phy_reg_init[] = {
2623 { 0x1f, 0x0003 },
2624 { 0x08, 0x441d },
2625 { 0x01, 0x9100 },
2626 { 0x1f, 0x0000 }
2627 };
2628
2629 mdio_write(ioaddr, 0x1f, 0x0000);
2630 mdio_patch(ioaddr, 0x11, 1 << 12);
2631 mdio_patch(ioaddr, 0x19, 1 << 13);
2632 mdio_patch(ioaddr, 0x10, 1 << 15);
2633
2634 rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init));
2635 }
2636
2637 static void rtl_hw_phy_config(struct net_device *dev)
2638 {
2639 struct rtl8169_private *tp = netdev_priv(dev);
2640 void __iomem *ioaddr = tp->mmio_addr;
2641
2642 rtl8169_print_mac_version(tp);
2643
2644 switch (tp->mac_version) {
2645 case RTL_GIGA_MAC_VER_01:
2646 break;
2647 case RTL_GIGA_MAC_VER_02:
2648 case RTL_GIGA_MAC_VER_03:
2649 rtl8169s_hw_phy_config(ioaddr);
2650 break;
2651 case RTL_GIGA_MAC_VER_04:
2652 rtl8169sb_hw_phy_config(ioaddr);
2653 break;
2654 case RTL_GIGA_MAC_VER_05:
2655 rtl8169scd_hw_phy_config(tp, ioaddr);
2656 break;
2657 case RTL_GIGA_MAC_VER_06:
2658 rtl8169sce_hw_phy_config(ioaddr);
2659 break;
2660 case RTL_GIGA_MAC_VER_07:
2661 case RTL_GIGA_MAC_VER_08:
2662 case RTL_GIGA_MAC_VER_09:
2663 rtl8102e_hw_phy_config(ioaddr);
2664 break;
2665 case RTL_GIGA_MAC_VER_11:
2666 rtl8168bb_hw_phy_config(ioaddr);
2667 break;
2668 case RTL_GIGA_MAC_VER_12:
2669 rtl8168bef_hw_phy_config(ioaddr);
2670 break;
2671 case RTL_GIGA_MAC_VER_17:
2672 rtl8168bef_hw_phy_config(ioaddr);
2673 break;
2674 case RTL_GIGA_MAC_VER_18:
2675 rtl8168cp_1_hw_phy_config(ioaddr);
2676 break;
2677 case RTL_GIGA_MAC_VER_19:
2678 rtl8168c_1_hw_phy_config(ioaddr);
2679 break;
2680 case RTL_GIGA_MAC_VER_20:
2681 rtl8168c_2_hw_phy_config(ioaddr);
2682 break;
2683 case RTL_GIGA_MAC_VER_21:
2684 rtl8168c_3_hw_phy_config(ioaddr);
2685 break;
2686 case RTL_GIGA_MAC_VER_22:
2687 rtl8168c_4_hw_phy_config(ioaddr);
2688 break;
2689 case RTL_GIGA_MAC_VER_23:
2690 case RTL_GIGA_MAC_VER_24:
2691 rtl8168cp_2_hw_phy_config(ioaddr);
2692 break;
2693 case RTL_GIGA_MAC_VER_25:
2694 rtl8168d_1_hw_phy_config(ioaddr);
2695 break;
2696 case RTL_GIGA_MAC_VER_26:
2697 rtl8168d_2_hw_phy_config(ioaddr);
2698 break;
2699 case RTL_GIGA_MAC_VER_27:
2700 rtl8168d_3_hw_phy_config(ioaddr);
2701 break;
2702
2703 default:
2704 break;
2705 }
2706 }
2707
2708 static void rtl8169_phy_timer(unsigned long __opaque)
2709 {
2710 struct net_device *dev = (struct net_device *)__opaque;
2711 struct rtl8169_private *tp = netdev_priv(dev);
2712 struct timer_list *timer = &tp->timer;
2713 void __iomem *ioaddr = tp->mmio_addr;
2714 unsigned long timeout = RTL8169_PHY_TIMEOUT;
2715
2716 assert(tp->mac_version > RTL_GIGA_MAC_VER_01);
2717
2718 if (!(tp->phy_1000_ctrl_reg & ADVERTISE_1000FULL))
2719 return;
2720
2721 spin_lock_irq(&tp->lock);
2722
2723 if (tp->phy_reset_pending(ioaddr)) {
2724 /*
2725 * A busy loop could burn quite a few cycles on nowadays CPU.
2726 * Let's delay the execution of the timer for a few ticks.
2727 */
2728 timeout = HZ/10;
2729 goto out_mod_timer;
2730 }
2731
2732 if (tp->link_ok(ioaddr))
2733 goto out_unlock;
2734
2735 netif_warn(tp, link, dev, "PHY reset until link up\n");
2736
2737 tp->phy_reset_enable(ioaddr);
2738
2739 out_mod_timer:
2740 mod_timer(timer, jiffies + timeout);
2741 out_unlock:
2742 spin_unlock_irq(&tp->lock);
2743 }
2744
2745 static inline void rtl8169_delete_timer(struct net_device *dev)
2746 {
2747 struct rtl8169_private *tp = netdev_priv(dev);
2748 struct timer_list *timer = &tp->timer;
2749
2750 if (tp->mac_version <= RTL_GIGA_MAC_VER_01)
2751 return;
2752
2753 del_timer_sync(timer);
2754 }
2755
2756 static inline void rtl8169_request_timer(struct net_device *dev)
2757 {
2758 struct rtl8169_private *tp = netdev_priv(dev);
2759 struct timer_list *timer = &tp->timer;
2760
2761 if (tp->mac_version <= RTL_GIGA_MAC_VER_01)
2762 return;
2763
2764 mod_timer(timer, jiffies + RTL8169_PHY_TIMEOUT);
2765 }
2766
2767 #ifdef CONFIG_NET_POLL_CONTROLLER
2768 /*
2769 * Polling 'interrupt' - used by things like netconsole to send skbs
2770 * without having to re-enable interrupts. It's not called while
2771 * the interrupt routine is executing.
2772 */
2773 static void rtl8169_netpoll(struct net_device *dev)
2774 {
2775 struct rtl8169_private *tp = netdev_priv(dev);
2776 struct pci_dev *pdev = tp->pci_dev;
2777
2778 disable_irq(pdev->irq);
2779 rtl8169_interrupt(pdev->irq, dev);
2780 enable_irq(pdev->irq);
2781 }
2782 #endif
2783
2784 static void rtl8169_release_board(struct pci_dev *pdev, struct net_device *dev,
2785 void __iomem *ioaddr)
2786 {
2787 iounmap(ioaddr);
2788 pci_release_regions(pdev);
2789 pci_clear_mwi(pdev);
2790 pci_disable_device(pdev);
2791 free_netdev(dev);
2792 }
2793
2794 static void rtl8169_phy_reset(struct net_device *dev,
2795 struct rtl8169_private *tp)
2796 {
2797 void __iomem *ioaddr = tp->mmio_addr;
2798 unsigned int i;
2799
2800 tp->phy_reset_enable(ioaddr);
2801 for (i = 0; i < 100; i++) {
2802 if (!tp->phy_reset_pending(ioaddr))
2803 return;
2804 msleep(1);
2805 }
2806 netif_err(tp, link, dev, "PHY reset failed\n");
2807 }
2808
2809 static void rtl8169_init_phy(struct net_device *dev, struct rtl8169_private *tp)
2810 {
2811 void __iomem *ioaddr = tp->mmio_addr;
2812
2813 rtl_hw_phy_config(dev);
2814
2815 if (tp->mac_version <= RTL_GIGA_MAC_VER_06) {
2816 dprintk("Set MAC Reg C+CR Offset 0x82h = 0x01h\n");
2817 RTL_W8(0x82, 0x01);
2818 }
2819
2820 pci_write_config_byte(tp->pci_dev, PCI_LATENCY_TIMER, 0x40);
2821
2822 if (tp->mac_version <= RTL_GIGA_MAC_VER_06)
2823 pci_write_config_byte(tp->pci_dev, PCI_CACHE_LINE_SIZE, 0x08);
2824
2825 if (tp->mac_version == RTL_GIGA_MAC_VER_02) {
2826 dprintk("Set MAC Reg C+CR Offset 0x82h = 0x01h\n");
2827 RTL_W8(0x82, 0x01);
2828 dprintk("Set PHY Reg 0x0bh = 0x00h\n");
2829 mdio_write(ioaddr, 0x0b, 0x0000); //w 0x0b 15 0 0
2830 }
2831
2832 rtl8169_phy_reset(dev, tp);
2833
2834 /*
2835 * rtl8169_set_speed_xmii takes good care of the Fast Ethernet
2836 * only 8101. Don't panic.
2837 */
2838 rtl8169_set_speed(dev, AUTONEG_ENABLE, SPEED_1000, DUPLEX_FULL);
2839
2840 if (RTL_R8(PHYstatus) & TBI_Enable)
2841 netif_info(tp, link, dev, "TBI auto-negotiating\n");
2842 }
2843
2844 static void rtl_rar_set(struct rtl8169_private *tp, u8 *addr)
2845 {
2846 void __iomem *ioaddr = tp->mmio_addr;
2847 u32 high;
2848 u32 low;
2849
2850 low = addr[0] | (addr[1] << 8) | (addr[2] << 16) | (addr[3] << 24);
2851 high = addr[4] | (addr[5] << 8);
2852
2853 spin_lock_irq(&tp->lock);
2854
2855 RTL_W8(Cfg9346, Cfg9346_Unlock);
2856
2857 RTL_W32(MAC4, high);
2858 RTL_R32(MAC4);
2859
2860 RTL_W32(MAC0, low);
2861 RTL_R32(MAC0);
2862
2863 RTL_W8(Cfg9346, Cfg9346_Lock);
2864
2865 spin_unlock_irq(&tp->lock);
2866 }
2867
2868 static int rtl_set_mac_address(struct net_device *dev, void *p)
2869 {
2870 struct rtl8169_private *tp = netdev_priv(dev);
2871 struct sockaddr *addr = p;
2872
2873 if (!is_valid_ether_addr(addr->sa_data))
2874 return -EADDRNOTAVAIL;
2875
2876 memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
2877
2878 rtl_rar_set(tp, dev->dev_addr);
2879
2880 return 0;
2881 }
2882
2883 static int rtl8169_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
2884 {
2885 struct rtl8169_private *tp = netdev_priv(dev);
2886 struct mii_ioctl_data *data = if_mii(ifr);
2887
2888 return netif_running(dev) ? tp->do_ioctl(tp, data, cmd) : -ENODEV;
2889 }
2890
2891 static int rtl_xmii_ioctl(struct rtl8169_private *tp, struct mii_ioctl_data *data, int cmd)
2892 {
2893 switch (cmd) {
2894 case SIOCGMIIPHY:
2895 data->phy_id = 32; /* Internal PHY */
2896 return 0;
2897
2898 case SIOCGMIIREG:
2899 data->val_out = mdio_read(tp->mmio_addr, data->reg_num & 0x1f);
2900 return 0;
2901
2902 case SIOCSMIIREG:
2903 mdio_write(tp->mmio_addr, data->reg_num & 0x1f, data->val_in);
2904 return 0;
2905 }
2906 return -EOPNOTSUPP;
2907 }
2908
2909 static int rtl_tbi_ioctl(struct rtl8169_private *tp, struct mii_ioctl_data *data, int cmd)
2910 {
2911 return -EOPNOTSUPP;
2912 }
2913
2914 static const struct rtl_cfg_info {
2915 void (*hw_start)(struct net_device *);
2916 unsigned int region;
2917 unsigned int align;
2918 u16 intr_event;
2919 u16 napi_event;
2920 unsigned features;
2921 u8 default_ver;
2922 } rtl_cfg_infos [] = {
2923 [RTL_CFG_0] = {
2924 .hw_start = rtl_hw_start_8169,
2925 .region = 1,
2926 .align = 0,
2927 .intr_event = SYSErr | LinkChg | RxOverflow |
2928 RxFIFOOver | TxErr | TxOK | RxOK | RxErr,
2929 .napi_event = RxFIFOOver | TxErr | TxOK | RxOK | RxOverflow,
2930 .features = RTL_FEATURE_GMII,
2931 .default_ver = RTL_GIGA_MAC_VER_01,
2932 },
2933 [RTL_CFG_1] = {
2934 .hw_start = rtl_hw_start_8168,
2935 .region = 2,
2936 .align = 8,
2937 .intr_event = SYSErr | LinkChg | RxOverflow |
2938 TxErr | TxOK | RxOK | RxErr,
2939 .napi_event = TxErr | TxOK | RxOK | RxOverflow,
2940 .features = RTL_FEATURE_GMII | RTL_FEATURE_MSI,
2941 .default_ver = RTL_GIGA_MAC_VER_11,
2942 },
2943 [RTL_CFG_2] = {
2944 .hw_start = rtl_hw_start_8101,
2945 .region = 2,
2946 .align = 8,
2947 .intr_event = SYSErr | LinkChg | RxOverflow | PCSTimeout |
2948 RxFIFOOver | TxErr | TxOK | RxOK | RxErr,
2949 .napi_event = RxFIFOOver | TxErr | TxOK | RxOK | RxOverflow,
2950 .features = RTL_FEATURE_MSI,
2951 .default_ver = RTL_GIGA_MAC_VER_13,
2952 }
2953 };
2954
2955 /* Cfg9346_Unlock assumed. */
2956 static unsigned rtl_try_msi(struct pci_dev *pdev, void __iomem *ioaddr,
2957 const struct rtl_cfg_info *cfg)
2958 {
2959 unsigned msi = 0;
2960 u8 cfg2;
2961
2962 cfg2 = RTL_R8(Config2) & ~MSIEnable;
2963 if (cfg->features & RTL_FEATURE_MSI) {
2964 if (pci_enable_msi(pdev)) {
2965 dev_info(&pdev->dev, "no MSI. Back to INTx.\n");
2966 } else {
2967 cfg2 |= MSIEnable;
2968 msi = RTL_FEATURE_MSI;
2969 }
2970 }
2971 RTL_W8(Config2, cfg2);
2972 return msi;
2973 }
2974
2975 static void rtl_disable_msi(struct pci_dev *pdev, struct rtl8169_private *tp)
2976 {
2977 if (tp->features & RTL_FEATURE_MSI) {
2978 pci_disable_msi(pdev);
2979 tp->features &= ~RTL_FEATURE_MSI;
2980 }
2981 }
2982
2983 static const struct net_device_ops rtl8169_netdev_ops = {
2984 .ndo_open = rtl8169_open,
2985 .ndo_stop = rtl8169_close,
2986 .ndo_get_stats = rtl8169_get_stats,
2987 .ndo_start_xmit = rtl8169_start_xmit,
2988 .ndo_tx_timeout = rtl8169_tx_timeout,
2989 .ndo_validate_addr = eth_validate_addr,
2990 .ndo_change_mtu = rtl8169_change_mtu,
2991 .ndo_set_mac_address = rtl_set_mac_address,
2992 .ndo_do_ioctl = rtl8169_ioctl,
2993 .ndo_set_multicast_list = rtl_set_rx_mode,
2994 #ifdef CONFIG_R8169_VLAN
2995 .ndo_vlan_rx_register = rtl8169_vlan_rx_register,
2996 #endif
2997 #ifdef CONFIG_NET_POLL_CONTROLLER
2998 .ndo_poll_controller = rtl8169_netpoll,
2999 #endif
3000
3001 };
3002
3003 static int __devinit
3004 rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
3005 {
3006 const struct rtl_cfg_info *cfg = rtl_cfg_infos + ent->driver_data;
3007 const unsigned int region = cfg->region;
3008 struct rtl8169_private *tp;
3009 struct mii_if_info *mii;
3010 struct net_device *dev;
3011 void __iomem *ioaddr;
3012 unsigned int i;
3013 int rc;
3014
3015 if (netif_msg_drv(&debug)) {
3016 printk(KERN_INFO "%s Gigabit Ethernet driver %s loaded\n",
3017 MODULENAME, RTL8169_VERSION);
3018 }
3019
3020 dev = alloc_etherdev(sizeof (*tp));
3021 if (!dev) {
3022 if (netif_msg_drv(&debug))
3023 dev_err(&pdev->dev, "unable to alloc new ethernet\n");
3024 rc = -ENOMEM;
3025 goto out;
3026 }
3027
3028 SET_NETDEV_DEV(dev, &pdev->dev);
3029 dev->netdev_ops = &rtl8169_netdev_ops;
3030 tp = netdev_priv(dev);
3031 tp->dev = dev;
3032 tp->pci_dev = pdev;
3033 tp->msg_enable = netif_msg_init(debug.msg_enable, R8169_MSG_DEFAULT);
3034
3035 mii = &tp->mii;
3036 mii->dev = dev;
3037 mii->mdio_read = rtl_mdio_read;
3038 mii->mdio_write = rtl_mdio_write;
3039 mii->phy_id_mask = 0x1f;
3040 mii->reg_num_mask = 0x1f;
3041 mii->supports_gmii = !!(cfg->features & RTL_FEATURE_GMII);
3042
3043 /* enable device (incl. PCI PM wakeup and hotplug setup) */
3044 rc = pci_enable_device(pdev);
3045 if (rc < 0) {
3046 netif_err(tp, probe, dev, "enable failure\n");
3047 goto err_out_free_dev_1;
3048 }
3049
3050 if (pci_set_mwi(pdev) < 0)
3051 netif_info(tp, probe, dev, "Mem-Wr-Inval unavailable\n");
3052
3053 /* make sure PCI base addr 1 is MMIO */
3054 if (!(pci_resource_flags(pdev, region) & IORESOURCE_MEM)) {
3055 netif_err(tp, probe, dev,
3056 "region #%d not an MMIO resource, aborting\n",
3057 region);
3058 rc = -ENODEV;
3059 goto err_out_mwi_2;
3060 }
3061
3062 /* check for weird/broken PCI region reporting */
3063 if (pci_resource_len(pdev, region) < R8169_REGS_SIZE) {
3064 netif_err(tp, probe, dev,
3065 "Invalid PCI region size(s), aborting\n");
3066 rc = -ENODEV;
3067 goto err_out_mwi_2;
3068 }
3069
3070 rc = pci_request_regions(pdev, MODULENAME);
3071 if (rc < 0) {
3072 netif_err(tp, probe, dev, "could not request regions\n");
3073 goto err_out_mwi_2;
3074 }
3075
3076 tp->cp_cmd = PCIMulRW | RxChkSum;
3077
3078 if ((sizeof(dma_addr_t) > 4) &&
3079 !pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) && use_dac) {
3080 tp->cp_cmd |= PCIDAC;
3081 dev->features |= NETIF_F_HIGHDMA;
3082 } else {
3083 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
3084 if (rc < 0) {
3085 netif_err(tp, probe, dev, "DMA configuration failed\n");
3086 goto err_out_free_res_3;
3087 }
3088 }
3089
3090 /* ioremap MMIO region */
3091 ioaddr = ioremap(pci_resource_start(pdev, region), R8169_REGS_SIZE);
3092 if (!ioaddr) {
3093 netif_err(tp, probe, dev, "cannot remap MMIO, aborting\n");
3094 rc = -EIO;
3095 goto err_out_free_res_3;
3096 }
3097
3098 tp->pcie_cap = pci_find_capability(pdev, PCI_CAP_ID_EXP);
3099 if (!tp->pcie_cap)
3100 netif_info(tp, probe, dev, "no PCI Express capability\n");
3101
3102 RTL_W16(IntrMask, 0x0000);
3103
3104 /* Soft reset the chip. */
3105 RTL_W8(ChipCmd, CmdReset);
3106
3107 /* Check that the chip has finished the reset. */
3108 for (i = 0; i < 100; i++) {
3109 if ((RTL_R8(ChipCmd) & CmdReset) == 0)
3110 break;
3111 msleep_interruptible(1);
3112 }
3113
3114 RTL_W16(IntrStatus, 0xffff);
3115
3116 pci_set_master(pdev);
3117
3118 /* Identify chip attached to board */
3119 rtl8169_get_mac_version(tp, ioaddr);
3120
3121 /* Use appropriate default if unknown */
3122 if (tp->mac_version == RTL_GIGA_MAC_NONE) {
3123 netif_notice(tp, probe, dev,
3124 "unknown MAC, using family default\n");
3125 tp->mac_version = cfg->default_ver;
3126 }
3127
3128 rtl8169_print_mac_version(tp);
3129
3130 for (i = 0; i < ARRAY_SIZE(rtl_chip_info); i++) {
3131 if (tp->mac_version == rtl_chip_info[i].mac_version)
3132 break;
3133 }
3134 if (i == ARRAY_SIZE(rtl_chip_info)) {
3135 dev_err(&pdev->dev,
3136 "driver bug, MAC version not found in rtl_chip_info\n");
3137 goto err_out_msi_4;
3138 }
3139 tp->chipset = i;
3140
3141 RTL_W8(Cfg9346, Cfg9346_Unlock);
3142 RTL_W8(Config1, RTL_R8(Config1) | PMEnable);
3143 RTL_W8(Config5, RTL_R8(Config5) & PMEStatus);
3144 if ((RTL_R8(Config3) & (LinkUp | MagicPacket)) != 0)
3145 tp->features |= RTL_FEATURE_WOL;
3146 if ((RTL_R8(Config5) & (UWF | BWF | MWF)) != 0)
3147 tp->features |= RTL_FEATURE_WOL;
3148 tp->features |= rtl_try_msi(pdev, ioaddr, cfg);
3149 RTL_W8(Cfg9346, Cfg9346_Lock);
3150
3151 if ((tp->mac_version <= RTL_GIGA_MAC_VER_06) &&
3152 (RTL_R8(PHYstatus) & TBI_Enable)) {
3153 tp->set_speed = rtl8169_set_speed_tbi;
3154 tp->get_settings = rtl8169_gset_tbi;
3155 tp->phy_reset_enable = rtl8169_tbi_reset_enable;
3156 tp->phy_reset_pending = rtl8169_tbi_reset_pending;
3157 tp->link_ok = rtl8169_tbi_link_ok;
3158 tp->do_ioctl = rtl_tbi_ioctl;
3159
3160 tp->phy_1000_ctrl_reg = ADVERTISE_1000FULL; /* Implied by TBI */
3161 } else {
3162 tp->set_speed = rtl8169_set_speed_xmii;
3163 tp->get_settings = rtl8169_gset_xmii;
3164 tp->phy_reset_enable = rtl8169_xmii_reset_enable;
3165 tp->phy_reset_pending = rtl8169_xmii_reset_pending;
3166 tp->link_ok = rtl8169_xmii_link_ok;
3167 tp->do_ioctl = rtl_xmii_ioctl;
3168 }
3169
3170 spin_lock_init(&tp->lock);
3171
3172 tp->mmio_addr = ioaddr;
3173
3174 /* Get MAC address */
3175 for (i = 0; i < MAC_ADDR_LEN; i++)
3176 dev->dev_addr[i] = RTL_R8(MAC0 + i);
3177 memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len);
3178
3179 SET_ETHTOOL_OPS(dev, &rtl8169_ethtool_ops);
3180 dev->watchdog_timeo = RTL8169_TX_TIMEOUT;
3181 dev->irq = pdev->irq;
3182 dev->base_addr = (unsigned long) ioaddr;
3183
3184 netif_napi_add(dev, &tp->napi, rtl8169_poll, R8169_NAPI_WEIGHT);
3185
3186 #ifdef CONFIG_R8169_VLAN
3187 dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
3188 #endif
3189
3190 tp->intr_mask = 0xffff;
3191 tp->align = cfg->align;
3192 tp->hw_start = cfg->hw_start;
3193 tp->intr_event = cfg->intr_event;
3194 tp->napi_event = cfg->napi_event;
3195
3196 init_timer(&tp->timer);
3197 tp->timer.data = (unsigned long) dev;
3198 tp->timer.function = rtl8169_phy_timer;
3199
3200 rc = register_netdev(dev);
3201 if (rc < 0)
3202 goto err_out_msi_4;
3203
3204 pci_set_drvdata(pdev, dev);
3205
3206 netif_info(tp, probe, dev, "%s at 0x%lx, %pM, XID %08x IRQ %d\n",
3207 rtl_chip_info[tp->chipset].name,
3208 dev->base_addr, dev->dev_addr,
3209 (u32)(RTL_R32(TxConfig) & 0x9cf0f8ff), dev->irq);
3210
3211 rtl8169_init_phy(dev, tp);
3212
3213 /*
3214 * Pretend we are using VLANs; This bypasses a nasty bug where
3215 * Interrupts stop flowing on high load on 8110SCd controllers.
3216 */
3217 if (tp->mac_version == RTL_GIGA_MAC_VER_05)
3218 RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) | RxVlan);
3219
3220 device_set_wakeup_enable(&pdev->dev, tp->features & RTL_FEATURE_WOL);
3221
3222 if (pci_dev_run_wake(pdev))
3223 pm_runtime_put_noidle(&pdev->dev);
3224
3225 out:
3226 return rc;
3227
3228 err_out_msi_4:
3229 rtl_disable_msi(pdev, tp);
3230 iounmap(ioaddr);
3231 err_out_free_res_3:
3232 pci_release_regions(pdev);
3233 err_out_mwi_2:
3234 pci_clear_mwi(pdev);
3235 pci_disable_device(pdev);
3236 err_out_free_dev_1:
3237 free_netdev(dev);
3238 goto out;
3239 }
3240
3241 static void __devexit rtl8169_remove_one(struct pci_dev *pdev)
3242 {
3243 struct net_device *dev = pci_get_drvdata(pdev);
3244 struct rtl8169_private *tp = netdev_priv(dev);
3245
3246 flush_scheduled_work();
3247
3248 unregister_netdev(dev);
3249
3250 if (pci_dev_run_wake(pdev))
3251 pm_runtime_get_noresume(&pdev->dev);
3252
3253 /* restore original MAC address */
3254 rtl_rar_set(tp, dev->perm_addr);
3255
3256 rtl_disable_msi(pdev, tp);
3257 rtl8169_release_board(pdev, dev, tp->mmio_addr);
3258 pci_set_drvdata(pdev, NULL);
3259 }
3260
3261 static void rtl8169_set_rxbufsize(struct rtl8169_private *tp,
3262 unsigned int mtu)
3263 {
3264 unsigned int max_frame = mtu + VLAN_ETH_HLEN + ETH_FCS_LEN;
3265
3266 if (max_frame != 16383)
3267 printk(KERN_WARNING PFX "WARNING! Changing of MTU on this "
3268 "NIC may lead to frame reception errors!\n");
3269
3270 tp->rx_buf_sz = (max_frame > RX_BUF_SIZE) ? max_frame : RX_BUF_SIZE;
3271 }
3272
3273 static int rtl8169_open(struct net_device *dev)
3274 {
3275 struct rtl8169_private *tp = netdev_priv(dev);
3276 struct pci_dev *pdev = tp->pci_dev;
3277 int retval = -ENOMEM;
3278
3279 pm_runtime_get_sync(&pdev->dev);
3280
3281 /*
3282 * Note that we use a magic value here, its wierd I know
3283 * its done because, some subset of rtl8169 hardware suffers from
3284 * a problem in which frames received that are longer than
3285 * the size set in RxMaxSize register return garbage sizes
3286 * when received. To avoid this we need to turn off filtering,
3287 * which is done by setting a value of 16383 in the RxMaxSize register
3288 * and allocating 16k frames to handle the largest possible rx value
3289 * thats what the magic math below does.
3290 */
3291 rtl8169_set_rxbufsize(tp, 16383 - VLAN_ETH_HLEN - ETH_FCS_LEN);
3292
3293 /*
3294 * Rx and Tx desscriptors needs 256 bytes alignment.
3295 * pci_alloc_consistent provides more.
3296 */
3297 tp->TxDescArray = pci_alloc_consistent(pdev, R8169_TX_RING_BYTES,
3298 &tp->TxPhyAddr);
3299 if (!tp->TxDescArray)
3300 goto err_pm_runtime_put;
3301
3302 tp->RxDescArray = pci_alloc_consistent(pdev, R8169_RX_RING_BYTES,
3303 &tp->RxPhyAddr);
3304 if (!tp->RxDescArray)
3305 goto err_free_tx_0;
3306
3307 retval = rtl8169_init_ring(dev);
3308 if (retval < 0)
3309 goto err_free_rx_1;
3310
3311 INIT_DELAYED_WORK(&tp->task, NULL);
3312
3313 smp_mb();
3314
3315 retval = request_irq(dev->irq, rtl8169_interrupt,
3316 (tp->features & RTL_FEATURE_MSI) ? 0 : IRQF_SHARED,
3317 dev->name, dev);
3318 if (retval < 0)
3319 goto err_release_ring_2;
3320
3321 napi_enable(&tp->napi);
3322
3323 rtl_hw_start(dev);
3324
3325 rtl8169_request_timer(dev);
3326
3327 tp->saved_wolopts = 0;
3328 pm_runtime_put_noidle(&pdev->dev);
3329
3330 rtl8169_check_link_status(dev, tp, tp->mmio_addr);
3331 out:
3332 return retval;
3333
3334 err_release_ring_2:
3335 rtl8169_rx_clear(tp);
3336 err_free_rx_1:
3337 pci_free_consistent(pdev, R8169_RX_RING_BYTES, tp->RxDescArray,
3338 tp->RxPhyAddr);
3339 tp->RxDescArray = NULL;
3340 err_free_tx_0:
3341 pci_free_consistent(pdev, R8169_TX_RING_BYTES, tp->TxDescArray,
3342 tp->TxPhyAddr);
3343 tp->TxDescArray = NULL;
3344 err_pm_runtime_put:
3345 pm_runtime_put_noidle(&pdev->dev);
3346 goto out;
3347 }
3348
3349 static void rtl8169_hw_reset(void __iomem *ioaddr)
3350 {
3351 /* Disable interrupts */
3352 rtl8169_irq_mask_and_ack(ioaddr);
3353
3354 /* Reset the chipset */
3355 RTL_W8(ChipCmd, CmdReset);
3356
3357 /* PCI commit */
3358 RTL_R8(ChipCmd);
3359 }
3360
3361 static void rtl_set_rx_tx_config_registers(struct rtl8169_private *tp)
3362 {
3363 void __iomem *ioaddr = tp->mmio_addr;
3364 u32 cfg = rtl8169_rx_config;
3365
3366 cfg |= (RTL_R32(RxConfig) & rtl_chip_info[tp->chipset].RxConfigMask);
3367 RTL_W32(RxConfig, cfg);
3368
3369 /* Set DMA burst size and Interframe Gap Time */
3370 RTL_W32(TxConfig, (TX_DMA_BURST << TxDMAShift) |
3371 (InterFrameGap << TxInterFrameGapShift));
3372 }
3373
3374 static void rtl_hw_start(struct net_device *dev)
3375 {
3376 struct rtl8169_private *tp = netdev_priv(dev);
3377 void __iomem *ioaddr = tp->mmio_addr;
3378 unsigned int i;
3379
3380 /* Soft reset the chip. */
3381 RTL_W8(ChipCmd, CmdReset);
3382
3383 /* Check that the chip has finished the reset. */
3384 for (i = 0; i < 100; i++) {
3385 if ((RTL_R8(ChipCmd) & CmdReset) == 0)
3386 break;
3387 msleep_interruptible(1);
3388 }
3389
3390 tp->hw_start(dev);
3391
3392 netif_start_queue(dev);
3393 }
3394
3395
3396 static void rtl_set_rx_tx_desc_registers(struct rtl8169_private *tp,
3397 void __iomem *ioaddr)
3398 {
3399 /*
3400 * Magic spell: some iop3xx ARM board needs the TxDescAddrHigh
3401 * register to be written before TxDescAddrLow to work.
3402 * Switching from MMIO to I/O access fixes the issue as well.
3403 */
3404 RTL_W32(TxDescStartAddrHigh, ((u64) tp->TxPhyAddr) >> 32);
3405 RTL_W32(TxDescStartAddrLow, ((u64) tp->TxPhyAddr) & DMA_BIT_MASK(32));
3406 RTL_W32(RxDescAddrHigh, ((u64) tp->RxPhyAddr) >> 32);
3407 RTL_W32(RxDescAddrLow, ((u64) tp->RxPhyAddr) & DMA_BIT_MASK(32));
3408 }
3409
3410 static u16 rtl_rw_cpluscmd(void __iomem *ioaddr)
3411 {
3412 u16 cmd;
3413
3414 cmd = RTL_R16(CPlusCmd);
3415 RTL_W16(CPlusCmd, cmd);
3416 return cmd;
3417 }
3418
3419 static void rtl_set_rx_max_size(void __iomem *ioaddr, unsigned int rx_buf_sz)
3420 {
3421 /* Low hurts. Let's disable the filtering. */
3422 RTL_W16(RxMaxSize, rx_buf_sz + 1);
3423 }
3424
3425 static void rtl8169_set_magic_reg(void __iomem *ioaddr, unsigned mac_version)
3426 {
3427 static const struct {
3428 u32 mac_version;
3429 u32 clk;
3430 u32 val;
3431 } cfg2_info [] = {
3432 { RTL_GIGA_MAC_VER_05, PCI_Clock_33MHz, 0x000fff00 }, // 8110SCd
3433 { RTL_GIGA_MAC_VER_05, PCI_Clock_66MHz, 0x000fffff },
3434 { RTL_GIGA_MAC_VER_06, PCI_Clock_33MHz, 0x00ffff00 }, // 8110SCe
3435 { RTL_GIGA_MAC_VER_06, PCI_Clock_66MHz, 0x00ffffff }
3436 }, *p = cfg2_info;
3437 unsigned int i;
3438 u32 clk;
3439
3440 clk = RTL_R8(Config2) & PCI_Clock_66MHz;
3441 for (i = 0; i < ARRAY_SIZE(cfg2_info); i++, p++) {
3442 if ((p->mac_version == mac_version) && (p->clk == clk)) {
3443 RTL_W32(0x7c, p->val);
3444 break;
3445 }
3446 }
3447 }
3448
3449 static void rtl_hw_start_8169(struct net_device *dev)
3450 {
3451 struct rtl8169_private *tp = netdev_priv(dev);
3452 void __iomem *ioaddr = tp->mmio_addr;
3453 struct pci_dev *pdev = tp->pci_dev;
3454
3455 if (tp->mac_version == RTL_GIGA_MAC_VER_05) {
3456 RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) | PCIMulRW);
3457 pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE, 0x08);
3458 }
3459
3460 RTL_W8(Cfg9346, Cfg9346_Unlock);
3461 if ((tp->mac_version == RTL_GIGA_MAC_VER_01) ||
3462 (tp->mac_version == RTL_GIGA_MAC_VER_02) ||
3463 (tp->mac_version == RTL_GIGA_MAC_VER_03) ||
3464 (tp->mac_version == RTL_GIGA_MAC_VER_04))
3465 RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb);
3466
3467 RTL_W8(EarlyTxThres, EarlyTxThld);
3468
3469 rtl_set_rx_max_size(ioaddr, tp->rx_buf_sz);
3470
3471 if ((tp->mac_version == RTL_GIGA_MAC_VER_01) ||
3472 (tp->mac_version == RTL_GIGA_MAC_VER_02) ||
3473 (tp->mac_version == RTL_GIGA_MAC_VER_03) ||
3474 (tp->mac_version == RTL_GIGA_MAC_VER_04))
3475 rtl_set_rx_tx_config_registers(tp);
3476
3477 tp->cp_cmd |= rtl_rw_cpluscmd(ioaddr) | PCIMulRW;
3478
3479 if ((tp->mac_version == RTL_GIGA_MAC_VER_02) ||
3480 (tp->mac_version == RTL_GIGA_MAC_VER_03)) {
3481 dprintk("Set MAC Reg C+CR Offset 0xE0. "
3482 "Bit-3 and bit-14 MUST be 1\n");
3483 tp->cp_cmd |= (1 << 14);
3484 }
3485
3486 RTL_W16(CPlusCmd, tp->cp_cmd);
3487
3488 rtl8169_set_magic_reg(ioaddr, tp->mac_version);
3489
3490 /*
3491 * Undocumented corner. Supposedly:
3492 * (TxTimer << 12) | (TxPackets << 8) | (RxTimer << 4) | RxPackets
3493 */
3494 RTL_W16(IntrMitigate, 0x0000);
3495
3496 rtl_set_rx_tx_desc_registers(tp, ioaddr);
3497
3498 if ((tp->mac_version != RTL_GIGA_MAC_VER_01) &&
3499 (tp->mac_version != RTL_GIGA_MAC_VER_02) &&
3500 (tp->mac_version != RTL_GIGA_MAC_VER_03) &&
3501 (tp->mac_version != RTL_GIGA_MAC_VER_04)) {
3502 RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb);
3503 rtl_set_rx_tx_config_registers(tp);
3504 }
3505
3506 RTL_W8(Cfg9346, Cfg9346_Lock);
3507
3508 /* Initially a 10 us delay. Turned it into a PCI commit. - FR */
3509 RTL_R8(IntrMask);
3510
3511 RTL_W32(RxMissed, 0);
3512
3513 rtl_set_rx_mode(dev);
3514
3515 /* no early-rx interrupts */
3516 RTL_W16(MultiIntr, RTL_R16(MultiIntr) & 0xF000);
3517
3518 /* Enable all known interrupts by setting the interrupt mask. */
3519 RTL_W16(IntrMask, tp->intr_event);
3520 }
3521
3522 static void rtl_tx_performance_tweak(struct pci_dev *pdev, u16 force)
3523 {
3524 struct net_device *dev = pci_get_drvdata(pdev);
3525 struct rtl8169_private *tp = netdev_priv(dev);
3526 int cap = tp->pcie_cap;
3527
3528 if (cap) {
3529 u16 ctl;
3530
3531 pci_read_config_word(pdev, cap + PCI_EXP_DEVCTL, &ctl);
3532 ctl = (ctl & ~PCI_EXP_DEVCTL_READRQ) | force;
3533 pci_write_config_word(pdev, cap + PCI_EXP_DEVCTL, ctl);
3534 }
3535 }
3536
3537 static void rtl_csi_access_enable(void __iomem *ioaddr)
3538 {
3539 u32 csi;
3540
3541 csi = rtl_csi_read(ioaddr, 0x070c) & 0x00ffffff;
3542 rtl_csi_write(ioaddr, 0x070c, csi | 0x27000000);
3543 }
3544
3545 struct ephy_info {
3546 unsigned int offset;
3547 u16 mask;
3548 u16 bits;
3549 };
3550
3551 static void rtl_ephy_init(void __iomem *ioaddr, const struct ephy_info *e, int len)
3552 {
3553 u16 w;
3554
3555 while (len-- > 0) {
3556 w = (rtl_ephy_read(ioaddr, e->offset) & ~e->mask) | e->bits;
3557 rtl_ephy_write(ioaddr, e->offset, w);
3558 e++;
3559 }
3560 }
3561
3562 static void rtl_disable_clock_request(struct pci_dev *pdev)
3563 {
3564 struct net_device *dev = pci_get_drvdata(pdev);
3565 struct rtl8169_private *tp = netdev_priv(dev);
3566 int cap = tp->pcie_cap;
3567
3568 if (cap) {
3569 u16 ctl;
3570
3571 pci_read_config_word(pdev, cap + PCI_EXP_LNKCTL, &ctl);
3572 ctl &= ~PCI_EXP_LNKCTL_CLKREQ_EN;
3573 pci_write_config_word(pdev, cap + PCI_EXP_LNKCTL, ctl);
3574 }
3575 }
3576
3577 #define R8168_CPCMD_QUIRK_MASK (\
3578 EnableBist | \
3579 Mac_dbgo_oe | \
3580 Force_half_dup | \
3581 Force_rxflow_en | \
3582 Force_txflow_en | \
3583 Cxpl_dbg_sel | \
3584 ASF | \
3585 PktCntrDisable | \
3586 Mac_dbgo_sel)
3587
3588 static void rtl_hw_start_8168bb(void __iomem *ioaddr, struct pci_dev *pdev)
3589 {
3590 RTL_W8(Config3, RTL_R8(Config3) & ~Beacon_en);
3591
3592 RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) & ~R8168_CPCMD_QUIRK_MASK);
3593
3594 rtl_tx_performance_tweak(pdev,
3595 (0x5 << MAX_READ_REQUEST_SHIFT) | PCI_EXP_DEVCTL_NOSNOOP_EN);
3596 }
3597
3598 static void rtl_hw_start_8168bef(void __iomem *ioaddr, struct pci_dev *pdev)
3599 {
3600 rtl_hw_start_8168bb(ioaddr, pdev);
3601
3602 RTL_W8(EarlyTxThres, EarlyTxThld);
3603
3604 RTL_W8(Config4, RTL_R8(Config4) & ~(1 << 0));
3605 }
3606
3607 static void __rtl_hw_start_8168cp(void __iomem *ioaddr, struct pci_dev *pdev)
3608 {
3609 RTL_W8(Config1, RTL_R8(Config1) | Speed_down);
3610
3611 RTL_W8(Config3, RTL_R8(Config3) & ~Beacon_en);
3612
3613 rtl_tx_performance_tweak(pdev, 0x5 << MAX_READ_REQUEST_SHIFT);
3614
3615 rtl_disable_clock_request(pdev);
3616
3617 RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) & ~R8168_CPCMD_QUIRK_MASK);
3618 }
3619
3620 static void rtl_hw_start_8168cp_1(void __iomem *ioaddr, struct pci_dev *pdev)
3621 {
3622 static const struct ephy_info e_info_8168cp[] = {
3623 { 0x01, 0, 0x0001 },
3624 { 0x02, 0x0800, 0x1000 },
3625 { 0x03, 0, 0x0042 },
3626 { 0x06, 0x0080, 0x0000 },
3627 { 0x07, 0, 0x2000 }
3628 };
3629
3630 rtl_csi_access_enable(ioaddr);
3631
3632 rtl_ephy_init(ioaddr, e_info_8168cp, ARRAY_SIZE(e_info_8168cp));
3633
3634 __rtl_hw_start_8168cp(ioaddr, pdev);
3635 }
3636
3637 static void rtl_hw_start_8168cp_2(void __iomem *ioaddr, struct pci_dev *pdev)
3638 {
3639 rtl_csi_access_enable(ioaddr);
3640
3641 RTL_W8(Config3, RTL_R8(Config3) & ~Beacon_en);
3642
3643 rtl_tx_performance_tweak(pdev, 0x5 << MAX_READ_REQUEST_SHIFT);
3644
3645 RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) & ~R8168_CPCMD_QUIRK_MASK);
3646 }
3647
3648 static void rtl_hw_start_8168cp_3(void __iomem *ioaddr, struct pci_dev *pdev)
3649 {
3650 rtl_csi_access_enable(ioaddr);
3651
3652 RTL_W8(Config3, RTL_R8(Config3) & ~Beacon_en);
3653
3654 /* Magic. */
3655 RTL_W8(DBG_REG, 0x20);
3656
3657 RTL_W8(EarlyTxThres, EarlyTxThld);
3658
3659 rtl_tx_performance_tweak(pdev, 0x5 << MAX_READ_REQUEST_SHIFT);
3660
3661 RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) & ~R8168_CPCMD_QUIRK_MASK);
3662 }
3663
3664 static void rtl_hw_start_8168c_1(void __iomem *ioaddr, struct pci_dev *pdev)
3665 {
3666 static const struct ephy_info e_info_8168c_1[] = {
3667 { 0x02, 0x0800, 0x1000 },
3668 { 0x03, 0, 0x0002 },
3669 { 0x06, 0x0080, 0x0000 }
3670 };
3671
3672 rtl_csi_access_enable(ioaddr);
3673
3674 RTL_W8(DBG_REG, 0x06 | FIX_NAK_1 | FIX_NAK_2);
3675
3676 rtl_ephy_init(ioaddr, e_info_8168c_1, ARRAY_SIZE(e_info_8168c_1));
3677
3678 __rtl_hw_start_8168cp(ioaddr, pdev);
3679 }
3680
3681 static void rtl_hw_start_8168c_2(void __iomem *ioaddr, struct pci_dev *pdev)
3682 {
3683 static const struct ephy_info e_info_8168c_2[] = {
3684 { 0x01, 0, 0x0001 },
3685 { 0x03, 0x0400, 0x0220 }
3686 };
3687
3688 rtl_csi_access_enable(ioaddr);
3689
3690 rtl_ephy_init(ioaddr, e_info_8168c_2, ARRAY_SIZE(e_info_8168c_2));
3691
3692 __rtl_hw_start_8168cp(ioaddr, pdev);
3693 }
3694
3695 static void rtl_hw_start_8168c_3(void __iomem *ioaddr, struct pci_dev *pdev)
3696 {
3697 rtl_hw_start_8168c_2(ioaddr, pdev);
3698 }
3699
3700 static void rtl_hw_start_8168c_4(void __iomem *ioaddr, struct pci_dev *pdev)
3701 {
3702 rtl_csi_access_enable(ioaddr);
3703
3704 __rtl_hw_start_8168cp(ioaddr, pdev);
3705 }
3706
3707 static void rtl_hw_start_8168d(void __iomem *ioaddr, struct pci_dev *pdev)
3708 {
3709 rtl_csi_access_enable(ioaddr);
3710
3711 rtl_disable_clock_request(pdev);
3712
3713 RTL_W8(EarlyTxThres, EarlyTxThld);
3714
3715 rtl_tx_performance_tweak(pdev, 0x5 << MAX_READ_REQUEST_SHIFT);
3716
3717 RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) & ~R8168_CPCMD_QUIRK_MASK);
3718 }
3719
3720 static void rtl_hw_start_8168(struct net_device *dev)
3721 {
3722 struct rtl8169_private *tp = netdev_priv(dev);
3723 void __iomem *ioaddr = tp->mmio_addr;
3724 struct pci_dev *pdev = tp->pci_dev;
3725
3726 RTL_W8(Cfg9346, Cfg9346_Unlock);
3727
3728 RTL_W8(EarlyTxThres, EarlyTxThld);
3729
3730 rtl_set_rx_max_size(ioaddr, tp->rx_buf_sz);
3731
3732 tp->cp_cmd |= RTL_R16(CPlusCmd) | PktCntrDisable | INTT_1;
3733
3734 RTL_W16(CPlusCmd, tp->cp_cmd);
3735
3736 RTL_W16(IntrMitigate, 0x5151);
3737
3738 /* Work around for RxFIFO overflow. */
3739 if (tp->mac_version == RTL_GIGA_MAC_VER_11) {
3740 tp->intr_event |= RxFIFOOver | PCSTimeout;
3741 tp->intr_event &= ~RxOverflow;
3742 }
3743
3744 rtl_set_rx_tx_desc_registers(tp, ioaddr);
3745
3746 rtl_set_rx_mode(dev);
3747
3748 RTL_W32(TxConfig, (TX_DMA_BURST << TxDMAShift) |
3749 (InterFrameGap << TxInterFrameGapShift));
3750
3751 RTL_R8(IntrMask);
3752
3753 switch (tp->mac_version) {
3754 case RTL_GIGA_MAC_VER_11:
3755 rtl_hw_start_8168bb(ioaddr, pdev);
3756 break;
3757
3758 case RTL_GIGA_MAC_VER_12:
3759 case RTL_GIGA_MAC_VER_17:
3760 rtl_hw_start_8168bef(ioaddr, pdev);
3761 break;
3762
3763 case RTL_GIGA_MAC_VER_18:
3764 rtl_hw_start_8168cp_1(ioaddr, pdev);
3765 break;
3766
3767 case RTL_GIGA_MAC_VER_19:
3768 rtl_hw_start_8168c_1(ioaddr, pdev);
3769 break;
3770
3771 case RTL_GIGA_MAC_VER_20:
3772 rtl_hw_start_8168c_2(ioaddr, pdev);
3773 break;
3774
3775 case RTL_GIGA_MAC_VER_21:
3776 rtl_hw_start_8168c_3(ioaddr, pdev);
3777 break;
3778
3779 case RTL_GIGA_MAC_VER_22:
3780 rtl_hw_start_8168c_4(ioaddr, pdev);
3781 break;
3782
3783 case RTL_GIGA_MAC_VER_23:
3784 rtl_hw_start_8168cp_2(ioaddr, pdev);
3785 break;
3786
3787 case RTL_GIGA_MAC_VER_24:
3788 rtl_hw_start_8168cp_3(ioaddr, pdev);
3789 break;
3790
3791 case RTL_GIGA_MAC_VER_25:
3792 case RTL_GIGA_MAC_VER_26:
3793 case RTL_GIGA_MAC_VER_27:
3794 rtl_hw_start_8168d(ioaddr, pdev);
3795 break;
3796
3797 default:
3798 printk(KERN_ERR PFX "%s: unknown chipset (mac_version = %d).\n",
3799 dev->name, tp->mac_version);
3800 break;
3801 }
3802
3803 RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb);
3804
3805 RTL_W8(Cfg9346, Cfg9346_Lock);
3806
3807 RTL_W16(MultiIntr, RTL_R16(MultiIntr) & 0xF000);
3808
3809 RTL_W16(IntrMask, tp->intr_event);
3810 }
3811
3812 #define R810X_CPCMD_QUIRK_MASK (\
3813 EnableBist | \
3814 Mac_dbgo_oe | \
3815 Force_half_dup | \
3816 Force_rxflow_en | \
3817 Force_txflow_en | \
3818 Cxpl_dbg_sel | \
3819 ASF | \
3820 PktCntrDisable | \
3821 PCIDAC | \
3822 PCIMulRW)
3823
3824 static void rtl_hw_start_8102e_1(void __iomem *ioaddr, struct pci_dev *pdev)
3825 {
3826 static const struct ephy_info e_info_8102e_1[] = {
3827 { 0x01, 0, 0x6e65 },
3828 { 0x02, 0, 0x091f },
3829 { 0x03, 0, 0xc2f9 },
3830 { 0x06, 0, 0xafb5 },
3831 { 0x07, 0, 0x0e00 },
3832 { 0x19, 0, 0xec80 },
3833 { 0x01, 0, 0x2e65 },
3834 { 0x01, 0, 0x6e65 }
3835 };
3836 u8 cfg1;
3837
3838 rtl_csi_access_enable(ioaddr);
3839
3840 RTL_W8(DBG_REG, FIX_NAK_1);
3841
3842 rtl_tx_performance_tweak(pdev, 0x5 << MAX_READ_REQUEST_SHIFT);
3843
3844 RTL_W8(Config1,
3845 LEDS1 | LEDS0 | Speed_down | MEMMAP | IOMAP | VPD | PMEnable);
3846 RTL_W8(Config3, RTL_R8(Config3) & ~Beacon_en);
3847
3848 cfg1 = RTL_R8(Config1);
3849 if ((cfg1 & LEDS0) && (cfg1 & LEDS1))
3850 RTL_W8(Config1, cfg1 & ~LEDS0);
3851
3852 RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) & ~R810X_CPCMD_QUIRK_MASK);
3853
3854 rtl_ephy_init(ioaddr, e_info_8102e_1, ARRAY_SIZE(e_info_8102e_1));
3855 }
3856
3857 static void rtl_hw_start_8102e_2(void __iomem *ioaddr, struct pci_dev *pdev)
3858 {
3859 rtl_csi_access_enable(ioaddr);
3860
3861 rtl_tx_performance_tweak(pdev, 0x5 << MAX_READ_REQUEST_SHIFT);
3862
3863 RTL_W8(Config1, MEMMAP | IOMAP | VPD | PMEnable);
3864 RTL_W8(Config3, RTL_R8(Config3) & ~Beacon_en);
3865
3866 RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) & ~R810X_CPCMD_QUIRK_MASK);
3867 }
3868
3869 static void rtl_hw_start_8102e_3(void __iomem *ioaddr, struct pci_dev *pdev)
3870 {
3871 rtl_hw_start_8102e_2(ioaddr, pdev);
3872
3873 rtl_ephy_write(ioaddr, 0x03, 0xc2f9);
3874 }
3875
3876 static void rtl_hw_start_8101(struct net_device *dev)
3877 {
3878 struct rtl8169_private *tp = netdev_priv(dev);
3879 void __iomem *ioaddr = tp->mmio_addr;
3880 struct pci_dev *pdev = tp->pci_dev;
3881
3882 if ((tp->mac_version == RTL_GIGA_MAC_VER_13) ||
3883 (tp->mac_version == RTL_GIGA_MAC_VER_16)) {
3884 int cap = tp->pcie_cap;
3885
3886 if (cap) {
3887 pci_write_config_word(pdev, cap + PCI_EXP_DEVCTL,
3888 PCI_EXP_DEVCTL_NOSNOOP_EN);
3889 }
3890 }
3891
3892 switch (tp->mac_version) {
3893 case RTL_GIGA_MAC_VER_07:
3894 rtl_hw_start_8102e_1(ioaddr, pdev);
3895 break;
3896
3897 case RTL_GIGA_MAC_VER_08:
3898 rtl_hw_start_8102e_3(ioaddr, pdev);
3899 break;
3900
3901 case RTL_GIGA_MAC_VER_09:
3902 rtl_hw_start_8102e_2(ioaddr, pdev);
3903 break;
3904 }
3905
3906 RTL_W8(Cfg9346, Cfg9346_Unlock);
3907
3908 RTL_W8(EarlyTxThres, EarlyTxThld);
3909
3910 rtl_set_rx_max_size(ioaddr, tp->rx_buf_sz);
3911
3912 tp->cp_cmd |= rtl_rw_cpluscmd(ioaddr) | PCIMulRW;
3913
3914 RTL_W16(CPlusCmd, tp->cp_cmd);
3915
3916 RTL_W16(IntrMitigate, 0x0000);
3917
3918 rtl_set_rx_tx_desc_registers(tp, ioaddr);
3919
3920 RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb);
3921 rtl_set_rx_tx_config_registers(tp);
3922
3923 RTL_W8(Cfg9346, Cfg9346_Lock);
3924
3925 RTL_R8(IntrMask);
3926
3927 rtl_set_rx_mode(dev);
3928
3929 RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb);
3930
3931 RTL_W16(MultiIntr, RTL_R16(MultiIntr) & 0xf000);
3932
3933 RTL_W16(IntrMask, tp->intr_event);
3934 }
3935
3936 static int rtl8169_change_mtu(struct net_device *dev, int new_mtu)
3937 {
3938 struct rtl8169_private *tp = netdev_priv(dev);
3939 int ret = 0;
3940
3941 if (new_mtu < ETH_ZLEN || new_mtu > SafeMtu)
3942 return -EINVAL;
3943
3944 dev->mtu = new_mtu;
3945
3946 if (!netif_running(dev))
3947 goto out;
3948
3949 rtl8169_down(dev);
3950
3951 rtl8169_set_rxbufsize(tp, dev->mtu);
3952
3953 ret = rtl8169_init_ring(dev);
3954 if (ret < 0)
3955 goto out;
3956
3957 napi_enable(&tp->napi);
3958
3959 rtl_hw_start(dev);
3960
3961 rtl8169_request_timer(dev);
3962
3963 out:
3964 return ret;
3965 }
3966
3967 static inline void rtl8169_make_unusable_by_asic(struct RxDesc *desc)
3968 {
3969 desc->addr = cpu_to_le64(0x0badbadbadbadbadull);
3970 desc->opts1 &= ~cpu_to_le32(DescOwn | RsvdMask);
3971 }
3972
3973 static void rtl8169_free_rx_skb(struct rtl8169_private *tp,
3974 struct sk_buff **sk_buff, struct RxDesc *desc)
3975 {
3976 struct pci_dev *pdev = tp->pci_dev;
3977
3978 pci_unmap_single(pdev, le64_to_cpu(desc->addr), tp->rx_buf_sz,
3979 PCI_DMA_FROMDEVICE);
3980 dev_kfree_skb(*sk_buff);
3981 *sk_buff = NULL;
3982 rtl8169_make_unusable_by_asic(desc);
3983 }
3984
3985 static inline void rtl8169_mark_to_asic(struct RxDesc *desc, u32 rx_buf_sz)
3986 {
3987 u32 eor = le32_to_cpu(desc->opts1) & RingEnd;
3988
3989 desc->opts1 = cpu_to_le32(DescOwn | eor | rx_buf_sz);
3990 }
3991
3992 static inline void rtl8169_map_to_asic(struct RxDesc *desc, dma_addr_t mapping,
3993 u32 rx_buf_sz)
3994 {
3995 desc->addr = cpu_to_le64(mapping);
3996 wmb();
3997 rtl8169_mark_to_asic(desc, rx_buf_sz);
3998 }
3999
4000 static struct sk_buff *rtl8169_alloc_rx_skb(struct pci_dev *pdev,
4001 struct net_device *dev,
4002 struct RxDesc *desc, int rx_buf_sz,
4003 unsigned int align)
4004 {
4005 struct sk_buff *skb;
4006 dma_addr_t mapping;
4007 unsigned int pad;
4008
4009 pad = align ? align : NET_IP_ALIGN;
4010
4011 skb = netdev_alloc_skb(dev, rx_buf_sz + pad);
4012 if (!skb)
4013 goto err_out;
4014
4015 skb_reserve(skb, align ? ((pad - 1) & (unsigned long)skb->data) : pad);
4016
4017 mapping = pci_map_single(pdev, skb->data, rx_buf_sz,
4018 PCI_DMA_FROMDEVICE);
4019
4020 rtl8169_map_to_asic(desc, mapping, rx_buf_sz);
4021 out:
4022 return skb;
4023
4024 err_out:
4025 rtl8169_make_unusable_by_asic(desc);
4026 goto out;
4027 }
4028
4029 static void rtl8169_rx_clear(struct rtl8169_private *tp)
4030 {
4031 unsigned int i;
4032
4033 for (i = 0; i < NUM_RX_DESC; i++) {
4034 if (tp->Rx_skbuff[i]) {
4035 rtl8169_free_rx_skb(tp, tp->Rx_skbuff + i,
4036 tp->RxDescArray + i);
4037 }
4038 }
4039 }
4040
4041 static u32 rtl8169_rx_fill(struct rtl8169_private *tp, struct net_device *dev,
4042 u32 start, u32 end)
4043 {
4044 u32 cur;
4045
4046 for (cur = start; end - cur != 0; cur++) {
4047 struct sk_buff *skb;
4048 unsigned int i = cur % NUM_RX_DESC;
4049
4050 WARN_ON((s32)(end - cur) < 0);
4051
4052 if (tp->Rx_skbuff[i])
4053 continue;
4054
4055 skb = rtl8169_alloc_rx_skb(tp->pci_dev, dev,
4056 tp->RxDescArray + i,
4057 tp->rx_buf_sz, tp->align);
4058 if (!skb)
4059 break;
4060
4061 tp->Rx_skbuff[i] = skb;
4062 }
4063 return cur - start;
4064 }
4065
4066 static inline void rtl8169_mark_as_last_descriptor(struct RxDesc *desc)
4067 {
4068 desc->opts1 |= cpu_to_le32(RingEnd);
4069 }
4070
4071 static void rtl8169_init_ring_indexes(struct rtl8169_private *tp)
4072 {
4073 tp->dirty_tx = tp->dirty_rx = tp->cur_tx = tp->cur_rx = 0;
4074 }
4075
4076 static int rtl8169_init_ring(struct net_device *dev)
4077 {
4078 struct rtl8169_private *tp = netdev_priv(dev);
4079
4080 rtl8169_init_ring_indexes(tp);
4081
4082 memset(tp->tx_skb, 0x0, NUM_TX_DESC * sizeof(struct ring_info));
4083 memset(tp->Rx_skbuff, 0x0, NUM_RX_DESC * sizeof(struct sk_buff *));
4084
4085 if (rtl8169_rx_fill(tp, dev, 0, NUM_RX_DESC) != NUM_RX_DESC)
4086 goto err_out;
4087
4088 rtl8169_mark_as_last_descriptor(tp->RxDescArray + NUM_RX_DESC - 1);
4089
4090 return 0;
4091
4092 err_out:
4093 rtl8169_rx_clear(tp);
4094 return -ENOMEM;
4095 }
4096
4097 static void rtl8169_unmap_tx_skb(struct pci_dev *pdev, struct ring_info *tx_skb,
4098 struct TxDesc *desc)
4099 {
4100 unsigned int len = tx_skb->len;
4101
4102 pci_unmap_single(pdev, le64_to_cpu(desc->addr), len, PCI_DMA_TODEVICE);
4103 desc->opts1 = 0x00;
4104 desc->opts2 = 0x00;
4105 desc->addr = 0x00;
4106 tx_skb->len = 0;
4107 }
4108
4109 static void rtl8169_tx_clear(struct rtl8169_private *tp)
4110 {
4111 unsigned int i;
4112
4113 for (i = tp->dirty_tx; i < tp->dirty_tx + NUM_TX_DESC; i++) {
4114 unsigned int entry = i % NUM_TX_DESC;
4115 struct ring_info *tx_skb = tp->tx_skb + entry;
4116 unsigned int len = tx_skb->len;
4117
4118 if (len) {
4119 struct sk_buff *skb = tx_skb->skb;
4120
4121 rtl8169_unmap_tx_skb(tp->pci_dev, tx_skb,
4122 tp->TxDescArray + entry);
4123 if (skb) {
4124 dev_kfree_skb(skb);
4125 tx_skb->skb = NULL;
4126 }
4127 tp->dev->stats.tx_dropped++;
4128 }
4129 }
4130 tp->cur_tx = tp->dirty_tx = 0;
4131 }
4132
4133 static void rtl8169_schedule_work(struct net_device *dev, work_func_t task)
4134 {
4135 struct rtl8169_private *tp = netdev_priv(dev);
4136
4137 PREPARE_DELAYED_WORK(&tp->task, task);
4138 schedule_delayed_work(&tp->task, 4);
4139 }
4140
4141 static void rtl8169_wait_for_quiescence(struct net_device *dev)
4142 {
4143 struct rtl8169_private *tp = netdev_priv(dev);
4144 void __iomem *ioaddr = tp->mmio_addr;
4145
4146 synchronize_irq(dev->irq);
4147
4148 /* Wait for any pending NAPI task to complete */
4149 napi_disable(&tp->napi);
4150
4151 rtl8169_irq_mask_and_ack(ioaddr);
4152
4153 tp->intr_mask = 0xffff;
4154 RTL_W16(IntrMask, tp->intr_event);
4155 napi_enable(&tp->napi);
4156 }
4157
4158 static void rtl8169_reinit_task(struct work_struct *work)
4159 {
4160 struct rtl8169_private *tp =
4161 container_of(work, struct rtl8169_private, task.work);
4162 struct net_device *dev = tp->dev;
4163 int ret;
4164
4165 rtnl_lock();
4166
4167 if (!netif_running(dev))
4168 goto out_unlock;
4169
4170 rtl8169_wait_for_quiescence(dev);
4171 rtl8169_close(dev);
4172
4173 ret = rtl8169_open(dev);
4174 if (unlikely(ret < 0)) {
4175 if (net_ratelimit())
4176 netif_err(tp, drv, dev,
4177 "reinit failure (status = %d). Rescheduling\n",
4178 ret);
4179 rtl8169_schedule_work(dev, rtl8169_reinit_task);
4180 }
4181
4182 out_unlock:
4183 rtnl_unlock();
4184 }
4185
4186 static void rtl8169_reset_task(struct work_struct *work)
4187 {
4188 struct rtl8169_private *tp =
4189 container_of(work, struct rtl8169_private, task.work);
4190 struct net_device *dev = tp->dev;
4191
4192 rtnl_lock();
4193
4194 if (!netif_running(dev))
4195 goto out_unlock;
4196
4197 rtl8169_wait_for_quiescence(dev);
4198
4199 rtl8169_rx_interrupt(dev, tp, tp->mmio_addr, ~(u32)0);
4200 rtl8169_tx_clear(tp);
4201
4202 if (tp->dirty_rx == tp->cur_rx) {
4203 rtl8169_init_ring_indexes(tp);
4204 rtl_hw_start(dev);
4205 netif_wake_queue(dev);
4206 rtl8169_check_link_status(dev, tp, tp->mmio_addr);
4207 } else {
4208 if (net_ratelimit())
4209 netif_emerg(tp, intr, dev, "Rx buffers shortage\n");
4210 rtl8169_schedule_work(dev, rtl8169_reset_task);
4211 }
4212
4213 out_unlock:
4214 rtnl_unlock();
4215 }
4216
4217 static void rtl8169_tx_timeout(struct net_device *dev)
4218 {
4219 struct rtl8169_private *tp = netdev_priv(dev);
4220
4221 rtl8169_hw_reset(tp->mmio_addr);
4222
4223 /* Let's wait a bit while any (async) irq lands on */
4224 rtl8169_schedule_work(dev, rtl8169_reset_task);
4225 }
4226
4227 static int rtl8169_xmit_frags(struct rtl8169_private *tp, struct sk_buff *skb,
4228 u32 opts1)
4229 {
4230 struct skb_shared_info *info = skb_shinfo(skb);
4231 unsigned int cur_frag, entry;
4232 struct TxDesc * uninitialized_var(txd);
4233
4234 entry = tp->cur_tx;
4235 for (cur_frag = 0; cur_frag < info->nr_frags; cur_frag++) {
4236 skb_frag_t *frag = info->frags + cur_frag;
4237 dma_addr_t mapping;
4238 u32 status, len;
4239 void *addr;
4240
4241 entry = (entry + 1) % NUM_TX_DESC;
4242
4243 txd = tp->TxDescArray + entry;
4244 len = frag->size;
4245 addr = ((void *) page_address(frag->page)) + frag->page_offset;
4246 mapping = pci_map_single(tp->pci_dev, addr, len, PCI_DMA_TODEVICE);
4247
4248 /* anti gcc 2.95.3 bugware (sic) */
4249 status = opts1 | len | (RingEnd * !((entry + 1) % NUM_TX_DESC));
4250
4251 txd->opts1 = cpu_to_le32(status);
4252 txd->addr = cpu_to_le64(mapping);
4253
4254 tp->tx_skb[entry].len = len;
4255 }
4256
4257 if (cur_frag) {
4258 tp->tx_skb[entry].skb = skb;
4259 txd->opts1 |= cpu_to_le32(LastFrag);
4260 }
4261
4262 return cur_frag;
4263 }
4264
4265 static inline u32 rtl8169_tso_csum(struct sk_buff *skb, struct net_device *dev)
4266 {
4267 if (dev->features & NETIF_F_TSO) {
4268 u32 mss = skb_shinfo(skb)->gso_size;
4269
4270 if (mss)
4271 return LargeSend | ((mss & MSSMask) << MSSShift);
4272 }
4273 if (skb->ip_summed == CHECKSUM_PARTIAL) {
4274 const struct iphdr *ip = ip_hdr(skb);
4275
4276 if (ip->protocol == IPPROTO_TCP)
4277 return IPCS | TCPCS;
4278 else if (ip->protocol == IPPROTO_UDP)
4279 return IPCS | UDPCS;
4280 WARN_ON(1); /* we need a WARN() */
4281 }
4282 return 0;
4283 }
4284
4285 static netdev_tx_t rtl8169_start_xmit(struct sk_buff *skb,
4286 struct net_device *dev)
4287 {
4288 struct rtl8169_private *tp = netdev_priv(dev);
4289 unsigned int frags, entry = tp->cur_tx % NUM_TX_DESC;
4290 struct TxDesc *txd = tp->TxDescArray + entry;
4291 void __iomem *ioaddr = tp->mmio_addr;
4292 dma_addr_t mapping;
4293 u32 status, len;
4294 u32 opts1;
4295
4296 if (unlikely(TX_BUFFS_AVAIL(tp) < skb_shinfo(skb)->nr_frags)) {
4297 netif_err(tp, drv, dev, "BUG! Tx Ring full when queue awake!\n");
4298 goto err_stop;
4299 }
4300
4301 if (unlikely(le32_to_cpu(txd->opts1) & DescOwn))
4302 goto err_stop;
4303
4304 opts1 = DescOwn | rtl8169_tso_csum(skb, dev);
4305
4306 frags = rtl8169_xmit_frags(tp, skb, opts1);
4307 if (frags) {
4308 len = skb_headlen(skb);
4309 opts1 |= FirstFrag;
4310 } else {
4311 len = skb->len;
4312 opts1 |= FirstFrag | LastFrag;
4313 tp->tx_skb[entry].skb = skb;
4314 }
4315
4316 mapping = pci_map_single(tp->pci_dev, skb->data, len, PCI_DMA_TODEVICE);
4317
4318 tp->tx_skb[entry].len = len;
4319 txd->addr = cpu_to_le64(mapping);
4320 txd->opts2 = cpu_to_le32(rtl8169_tx_vlan_tag(tp, skb));
4321
4322 wmb();
4323
4324 /* anti gcc 2.95.3 bugware (sic) */
4325 status = opts1 | len | (RingEnd * !((entry + 1) % NUM_TX_DESC));
4326 txd->opts1 = cpu_to_le32(status);
4327
4328 tp->cur_tx += frags + 1;
4329
4330 wmb();
4331
4332 RTL_W8(TxPoll, NPQ); /* set polling bit */
4333
4334 if (TX_BUFFS_AVAIL(tp) < MAX_SKB_FRAGS) {
4335 netif_stop_queue(dev);
4336 smp_rmb();
4337 if (TX_BUFFS_AVAIL(tp) >= MAX_SKB_FRAGS)
4338 netif_wake_queue(dev);
4339 }
4340
4341 return NETDEV_TX_OK;
4342
4343 err_stop:
4344 netif_stop_queue(dev);
4345 dev->stats.tx_dropped++;
4346 return NETDEV_TX_BUSY;
4347 }
4348
4349 static void rtl8169_pcierr_interrupt(struct net_device *dev)
4350 {
4351 struct rtl8169_private *tp = netdev_priv(dev);
4352 struct pci_dev *pdev = tp->pci_dev;
4353 void __iomem *ioaddr = tp->mmio_addr;
4354 u16 pci_status, pci_cmd;
4355
4356 pci_read_config_word(pdev, PCI_COMMAND, &pci_cmd);
4357 pci_read_config_word(pdev, PCI_STATUS, &pci_status);
4358
4359 netif_err(tp, intr, dev, "PCI error (cmd = 0x%04x, status = 0x%04x)\n",
4360 pci_cmd, pci_status);
4361
4362 /*
4363 * The recovery sequence below admits a very elaborated explanation:
4364 * - it seems to work;
4365 * - I did not see what else could be done;
4366 * - it makes iop3xx happy.
4367 *
4368 * Feel free to adjust to your needs.
4369 */
4370 if (pdev->broken_parity_status)
4371 pci_cmd &= ~PCI_COMMAND_PARITY;
4372 else
4373 pci_cmd |= PCI_COMMAND_SERR | PCI_COMMAND_PARITY;
4374
4375 pci_write_config_word(pdev, PCI_COMMAND, pci_cmd);
4376
4377 pci_write_config_word(pdev, PCI_STATUS,
4378 pci_status & (PCI_STATUS_DETECTED_PARITY |
4379 PCI_STATUS_SIG_SYSTEM_ERROR | PCI_STATUS_REC_MASTER_ABORT |
4380 PCI_STATUS_REC_TARGET_ABORT | PCI_STATUS_SIG_TARGET_ABORT));
4381
4382 /* The infamous DAC f*ckup only happens at boot time */
4383 if ((tp->cp_cmd & PCIDAC) && !tp->dirty_rx && !tp->cur_rx) {
4384 netif_info(tp, intr, dev, "disabling PCI DAC\n");
4385 tp->cp_cmd &= ~PCIDAC;
4386 RTL_W16(CPlusCmd, tp->cp_cmd);
4387 dev->features &= ~NETIF_F_HIGHDMA;
4388 }
4389
4390 rtl8169_hw_reset(ioaddr);
4391
4392 rtl8169_schedule_work(dev, rtl8169_reinit_task);
4393 }
4394
4395 static void rtl8169_tx_interrupt(struct net_device *dev,
4396 struct rtl8169_private *tp,
4397 void __iomem *ioaddr)
4398 {
4399 unsigned int dirty_tx, tx_left;
4400
4401 dirty_tx = tp->dirty_tx;
4402 smp_rmb();
4403 tx_left = tp->cur_tx - dirty_tx;
4404
4405 while (tx_left > 0) {
4406 unsigned int entry = dirty_tx % NUM_TX_DESC;
4407 struct ring_info *tx_skb = tp->tx_skb + entry;
4408 u32 len = tx_skb->len;
4409 u32 status;
4410
4411 rmb();
4412 status = le32_to_cpu(tp->TxDescArray[entry].opts1);
4413 if (status & DescOwn)
4414 break;
4415
4416 dev->stats.tx_bytes += len;
4417 dev->stats.tx_packets++;
4418
4419 rtl8169_unmap_tx_skb(tp->pci_dev, tx_skb, tp->TxDescArray + entry);
4420
4421 if (status & LastFrag) {
4422 dev_kfree_skb(tx_skb->skb);
4423 tx_skb->skb = NULL;
4424 }
4425 dirty_tx++;
4426 tx_left--;
4427 }
4428
4429 if (tp->dirty_tx != dirty_tx) {
4430 tp->dirty_tx = dirty_tx;
4431 smp_wmb();
4432 if (netif_queue_stopped(dev) &&
4433 (TX_BUFFS_AVAIL(tp) >= MAX_SKB_FRAGS)) {
4434 netif_wake_queue(dev);
4435 }
4436 /*
4437 * 8168 hack: TxPoll requests are lost when the Tx packets are
4438 * too close. Let's kick an extra TxPoll request when a burst
4439 * of start_xmit activity is detected (if it is not detected,
4440 * it is slow enough). -- FR
4441 */
4442 smp_rmb();
4443 if (tp->cur_tx != dirty_tx)
4444 RTL_W8(TxPoll, NPQ);
4445 }
4446 }
4447
4448 static inline int rtl8169_fragmented_frame(u32 status)
4449 {
4450 return (status & (FirstFrag | LastFrag)) != (FirstFrag | LastFrag);
4451 }
4452
4453 static inline void rtl8169_rx_csum(struct sk_buff *skb, struct RxDesc *desc)
4454 {
4455 u32 opts1 = le32_to_cpu(desc->opts1);
4456 u32 status = opts1 & RxProtoMask;
4457
4458 if (((status == RxProtoTCP) && !(opts1 & TCPFail)) ||
4459 ((status == RxProtoUDP) && !(opts1 & UDPFail)) ||
4460 ((status == RxProtoIP) && !(opts1 & IPFail)))
4461 skb->ip_summed = CHECKSUM_UNNECESSARY;
4462 else
4463 skb_checksum_none_assert(skb);
4464 }
4465
4466 static inline bool rtl8169_try_rx_copy(struct sk_buff **sk_buff,
4467 struct rtl8169_private *tp, int pkt_size,
4468 dma_addr_t addr)
4469 {
4470 struct sk_buff *skb;
4471 bool done = false;
4472
4473 if (pkt_size >= rx_copybreak)
4474 goto out;
4475
4476 skb = netdev_alloc_skb_ip_align(tp->dev, pkt_size);
4477 if (!skb)
4478 goto out;
4479
4480 pci_dma_sync_single_for_cpu(tp->pci_dev, addr, pkt_size,
4481 PCI_DMA_FROMDEVICE);
4482 skb_copy_from_linear_data(*sk_buff, skb->data, pkt_size);
4483 *sk_buff = skb;
4484 done = true;
4485 out:
4486 return done;
4487 }
4488
4489 /*
4490 * Warning : rtl8169_rx_interrupt() might be called :
4491 * 1) from NAPI (softirq) context
4492 * (polling = 1 : we should call netif_receive_skb())
4493 * 2) from process context (rtl8169_reset_task())
4494 * (polling = 0 : we must call netif_rx() instead)
4495 */
4496 static int rtl8169_rx_interrupt(struct net_device *dev,
4497 struct rtl8169_private *tp,
4498 void __iomem *ioaddr, u32 budget)
4499 {
4500 unsigned int cur_rx, rx_left;
4501 unsigned int delta, count;
4502 int polling = (budget != ~(u32)0) ? 1 : 0;
4503
4504 cur_rx = tp->cur_rx;
4505 rx_left = NUM_RX_DESC + tp->dirty_rx - cur_rx;
4506 rx_left = min(rx_left, budget);
4507
4508 for (; rx_left > 0; rx_left--, cur_rx++) {
4509 unsigned int entry = cur_rx % NUM_RX_DESC;
4510 struct RxDesc *desc = tp->RxDescArray + entry;
4511 u32 status;
4512
4513 rmb();
4514 status = le32_to_cpu(desc->opts1);
4515
4516 if (status & DescOwn)
4517 break;
4518 if (unlikely(status & RxRES)) {
4519 netif_info(tp, rx_err, dev, "Rx ERROR. status = %08x\n",
4520 status);
4521 dev->stats.rx_errors++;
4522 if (status & (RxRWT | RxRUNT))
4523 dev->stats.rx_length_errors++;
4524 if (status & RxCRC)
4525 dev->stats.rx_crc_errors++;
4526 if (status & RxFOVF) {
4527 rtl8169_schedule_work(dev, rtl8169_reset_task);
4528 dev->stats.rx_fifo_errors++;
4529 }
4530 rtl8169_mark_to_asic(desc, tp->rx_buf_sz);
4531 } else {
4532 struct sk_buff *skb = tp->Rx_skbuff[entry];
4533 dma_addr_t addr = le64_to_cpu(desc->addr);
4534 int pkt_size = (status & 0x00001FFF) - 4;
4535 struct pci_dev *pdev = tp->pci_dev;
4536
4537 /*
4538 * The driver does not support incoming fragmented
4539 * frames. They are seen as a symptom of over-mtu
4540 * sized frames.
4541 */
4542 if (unlikely(rtl8169_fragmented_frame(status))) {
4543 dev->stats.rx_dropped++;
4544 dev->stats.rx_length_errors++;
4545 rtl8169_mark_to_asic(desc, tp->rx_buf_sz);
4546 continue;
4547 }
4548
4549 rtl8169_rx_csum(skb, desc);
4550
4551 if (rtl8169_try_rx_copy(&skb, tp, pkt_size, addr)) {
4552 pci_dma_sync_single_for_device(pdev, addr,
4553 pkt_size, PCI_DMA_FROMDEVICE);
4554 rtl8169_mark_to_asic(desc, tp->rx_buf_sz);
4555 } else {
4556 pci_unmap_single(pdev, addr, tp->rx_buf_sz,
4557 PCI_DMA_FROMDEVICE);
4558 tp->Rx_skbuff[entry] = NULL;
4559 }
4560
4561 skb_put(skb, pkt_size);
4562 skb->protocol = eth_type_trans(skb, dev);
4563
4564 if (rtl8169_rx_vlan_skb(tp, desc, skb, polling) < 0) {
4565 if (likely(polling))
4566 netif_receive_skb(skb);
4567 else
4568 netif_rx(skb);
4569 }
4570
4571 dev->stats.rx_bytes += pkt_size;
4572 dev->stats.rx_packets++;
4573 }
4574
4575 /* Work around for AMD plateform. */
4576 if ((desc->opts2 & cpu_to_le32(0xfffe000)) &&
4577 (tp->mac_version == RTL_GIGA_MAC_VER_05)) {
4578 desc->opts2 = 0;
4579 cur_rx++;
4580 }
4581 }
4582
4583 count = cur_rx - tp->cur_rx;
4584 tp->cur_rx = cur_rx;
4585
4586 delta = rtl8169_rx_fill(tp, dev, tp->dirty_rx, tp->cur_rx);
4587 if (!delta && count)
4588 netif_info(tp, intr, dev, "no Rx buffer allocated\n");
4589 tp->dirty_rx += delta;
4590
4591 /*
4592 * FIXME: until there is periodic timer to try and refill the ring,
4593 * a temporary shortage may definitely kill the Rx process.
4594 * - disable the asic to try and avoid an overflow and kick it again
4595 * after refill ?
4596 * - how do others driver handle this condition (Uh oh...).
4597 */
4598 if (tp->dirty_rx + NUM_RX_DESC == tp->cur_rx)
4599 netif_emerg(tp, intr, dev, "Rx buffers exhausted\n");
4600
4601 return count;
4602 }
4603
4604 static irqreturn_t rtl8169_interrupt(int irq, void *dev_instance)
4605 {
4606 struct net_device *dev = dev_instance;
4607 struct rtl8169_private *tp = netdev_priv(dev);
4608 void __iomem *ioaddr = tp->mmio_addr;
4609 int handled = 0;
4610 int status;
4611
4612 /* loop handling interrupts until we have no new ones or
4613 * we hit a invalid/hotplug case.
4614 */
4615 status = RTL_R16(IntrStatus);
4616 while (status && status != 0xffff) {
4617 handled = 1;
4618
4619 /* Handle all of the error cases first. These will reset
4620 * the chip, so just exit the loop.
4621 */
4622 if (unlikely(!netif_running(dev))) {
4623 rtl8169_asic_down(ioaddr);
4624 break;
4625 }
4626
4627 /* Work around for rx fifo overflow */
4628 if (unlikely(status & RxFIFOOver) &&
4629 (tp->mac_version == RTL_GIGA_MAC_VER_11)) {
4630 netif_stop_queue(dev);
4631 rtl8169_tx_timeout(dev);
4632 break;
4633 }
4634
4635 if (unlikely(status & SYSErr)) {
4636 rtl8169_pcierr_interrupt(dev);
4637 break;
4638 }
4639
4640 if (status & LinkChg)
4641 rtl8169_check_link_status(dev, tp, ioaddr);
4642
4643 /* We need to see the lastest version of tp->intr_mask to
4644 * avoid ignoring an MSI interrupt and having to wait for
4645 * another event which may never come.
4646 */
4647 smp_rmb();
4648 if (status & tp->intr_mask & tp->napi_event) {
4649 RTL_W16(IntrMask, tp->intr_event & ~tp->napi_event);
4650 tp->intr_mask = ~tp->napi_event;
4651
4652 if (likely(napi_schedule_prep(&tp->napi)))
4653 __napi_schedule(&tp->napi);
4654 else
4655 netif_info(tp, intr, dev,
4656 "interrupt %04x in poll\n", status);
4657 }
4658
4659 /* We only get a new MSI interrupt when all active irq
4660 * sources on the chip have been acknowledged. So, ack
4661 * everything we've seen and check if new sources have become
4662 * active to avoid blocking all interrupts from the chip.
4663 */
4664 RTL_W16(IntrStatus,
4665 (status & RxFIFOOver) ? (status | RxOverflow) : status);
4666 status = RTL_R16(IntrStatus);
4667 }
4668
4669 return IRQ_RETVAL(handled);
4670 }
4671
4672 static int rtl8169_poll(struct napi_struct *napi, int budget)
4673 {
4674 struct rtl8169_private *tp = container_of(napi, struct rtl8169_private, napi);
4675 struct net_device *dev = tp->dev;
4676 void __iomem *ioaddr = tp->mmio_addr;
4677 int work_done;
4678
4679 work_done = rtl8169_rx_interrupt(dev, tp, ioaddr, (u32) budget);
4680 rtl8169_tx_interrupt(dev, tp, ioaddr);
4681
4682 if (work_done < budget) {
4683 napi_complete(napi);
4684
4685 /* We need for force the visibility of tp->intr_mask
4686 * for other CPUs, as we can loose an MSI interrupt
4687 * and potentially wait for a retransmit timeout if we don't.
4688 * The posted write to IntrMask is safe, as it will
4689 * eventually make it to the chip and we won't loose anything
4690 * until it does.
4691 */
4692 tp->intr_mask = 0xffff;
4693 wmb();
4694 RTL_W16(IntrMask, tp->intr_event);
4695 }
4696
4697 return work_done;
4698 }
4699
4700 static void rtl8169_rx_missed(struct net_device *dev, void __iomem *ioaddr)
4701 {
4702 struct rtl8169_private *tp = netdev_priv(dev);
4703
4704 if (tp->mac_version > RTL_GIGA_MAC_VER_06)
4705 return;
4706
4707 dev->stats.rx_missed_errors += (RTL_R32(RxMissed) & 0xffffff);
4708 RTL_W32(RxMissed, 0);
4709 }
4710
4711 static void rtl8169_down(struct net_device *dev)
4712 {
4713 struct rtl8169_private *tp = netdev_priv(dev);
4714 void __iomem *ioaddr = tp->mmio_addr;
4715 unsigned int intrmask;
4716
4717 rtl8169_delete_timer(dev);
4718
4719 netif_stop_queue(dev);
4720
4721 napi_disable(&tp->napi);
4722
4723 core_down:
4724 spin_lock_irq(&tp->lock);
4725
4726 rtl8169_asic_down(ioaddr);
4727
4728 rtl8169_rx_missed(dev, ioaddr);
4729
4730 spin_unlock_irq(&tp->lock);
4731
4732 synchronize_irq(dev->irq);
4733
4734 /* Give a racing hard_start_xmit a few cycles to complete. */
4735 synchronize_sched(); /* FIXME: should this be synchronize_irq()? */
4736
4737 /*
4738 * And now for the 50k$ question: are IRQ disabled or not ?
4739 *
4740 * Two paths lead here:
4741 * 1) dev->close
4742 * -> netif_running() is available to sync the current code and the
4743 * IRQ handler. See rtl8169_interrupt for details.
4744 * 2) dev->change_mtu
4745 * -> rtl8169_poll can not be issued again and re-enable the
4746 * interruptions. Let's simply issue the IRQ down sequence again.
4747 *
4748 * No loop if hotpluged or major error (0xffff).
4749 */
4750 intrmask = RTL_R16(IntrMask);
4751 if (intrmask && (intrmask != 0xffff))
4752 goto core_down;
4753
4754 rtl8169_tx_clear(tp);
4755
4756 rtl8169_rx_clear(tp);
4757 }
4758
4759 static int rtl8169_close(struct net_device *dev)
4760 {
4761 struct rtl8169_private *tp = netdev_priv(dev);
4762 struct pci_dev *pdev = tp->pci_dev;
4763
4764 pm_runtime_get_sync(&pdev->dev);
4765
4766 /* update counters before going down */
4767 rtl8169_update_counters(dev);
4768
4769 rtl8169_down(dev);
4770
4771 free_irq(dev->irq, dev);
4772
4773 pci_free_consistent(pdev, R8169_RX_RING_BYTES, tp->RxDescArray,
4774 tp->RxPhyAddr);
4775 pci_free_consistent(pdev, R8169_TX_RING_BYTES, tp->TxDescArray,
4776 tp->TxPhyAddr);
4777 tp->TxDescArray = NULL;
4778 tp->RxDescArray = NULL;
4779
4780 pm_runtime_put_sync(&pdev->dev);
4781
4782 return 0;
4783 }
4784
4785 static void rtl_set_rx_mode(struct net_device *dev)
4786 {
4787 struct rtl8169_private *tp = netdev_priv(dev);
4788 void __iomem *ioaddr = tp->mmio_addr;
4789 unsigned long flags;
4790 u32 mc_filter[2]; /* Multicast hash filter */
4791 int rx_mode;
4792 u32 tmp = 0;
4793
4794 if (dev->flags & IFF_PROMISC) {
4795 /* Unconditionally log net taps. */
4796 netif_notice(tp, link, dev, "Promiscuous mode enabled\n");
4797 rx_mode =
4798 AcceptBroadcast | AcceptMulticast | AcceptMyPhys |
4799 AcceptAllPhys;
4800 mc_filter[1] = mc_filter[0] = 0xffffffff;
4801 } else if ((netdev_mc_count(dev) > multicast_filter_limit) ||
4802 (dev->flags & IFF_ALLMULTI)) {
4803 /* Too many to filter perfectly -- accept all multicasts. */
4804 rx_mode = AcceptBroadcast | AcceptMulticast | AcceptMyPhys;
4805 mc_filter[1] = mc_filter[0] = 0xffffffff;
4806 } else {
4807 struct netdev_hw_addr *ha;
4808
4809 rx_mode = AcceptBroadcast | AcceptMyPhys;
4810 mc_filter[1] = mc_filter[0] = 0;
4811 netdev_for_each_mc_addr(ha, dev) {
4812 int bit_nr = ether_crc(ETH_ALEN, ha->addr) >> 26;
4813 mc_filter[bit_nr >> 5] |= 1 << (bit_nr & 31);
4814 rx_mode |= AcceptMulticast;
4815 }
4816 }
4817
4818 spin_lock_irqsave(&tp->lock, flags);
4819
4820 tmp = rtl8169_rx_config | rx_mode |
4821 (RTL_R32(RxConfig) & rtl_chip_info[tp->chipset].RxConfigMask);
4822
4823 if (tp->mac_version > RTL_GIGA_MAC_VER_06) {
4824 u32 data = mc_filter[0];
4825
4826 mc_filter[0] = swab32(mc_filter[1]);
4827 mc_filter[1] = swab32(data);
4828 }
4829
4830 RTL_W32(MAR0 + 4, mc_filter[1]);
4831 RTL_W32(MAR0 + 0, mc_filter[0]);
4832
4833 RTL_W32(RxConfig, tmp);
4834
4835 spin_unlock_irqrestore(&tp->lock, flags);
4836 }
4837
4838 /**
4839 * rtl8169_get_stats - Get rtl8169 read/write statistics
4840 * @dev: The Ethernet Device to get statistics for
4841 *
4842 * Get TX/RX statistics for rtl8169
4843 */
4844 static struct net_device_stats *rtl8169_get_stats(struct net_device *dev)
4845 {
4846 struct rtl8169_private *tp = netdev_priv(dev);
4847 void __iomem *ioaddr = tp->mmio_addr;
4848 unsigned long flags;
4849
4850 if (netif_running(dev)) {
4851 spin_lock_irqsave(&tp->lock, flags);
4852 rtl8169_rx_missed(dev, ioaddr);
4853 spin_unlock_irqrestore(&tp->lock, flags);
4854 }
4855
4856 return &dev->stats;
4857 }
4858
4859 static void rtl8169_net_suspend(struct net_device *dev)
4860 {
4861 if (!netif_running(dev))
4862 return;
4863
4864 netif_device_detach(dev);
4865 netif_stop_queue(dev);
4866 }
4867
4868 #ifdef CONFIG_PM
4869
4870 static int rtl8169_suspend(struct device *device)
4871 {
4872 struct pci_dev *pdev = to_pci_dev(device);
4873 struct net_device *dev = pci_get_drvdata(pdev);
4874
4875 rtl8169_net_suspend(dev);
4876
4877 return 0;
4878 }
4879
4880 static void __rtl8169_resume(struct net_device *dev)
4881 {
4882 netif_device_attach(dev);
4883 rtl8169_schedule_work(dev, rtl8169_reset_task);
4884 }
4885
4886 static int rtl8169_resume(struct device *device)
4887 {
4888 struct pci_dev *pdev = to_pci_dev(device);
4889 struct net_device *dev = pci_get_drvdata(pdev);
4890
4891 if (netif_running(dev))
4892 __rtl8169_resume(dev);
4893
4894 return 0;
4895 }
4896
4897 static int rtl8169_runtime_suspend(struct device *device)
4898 {
4899 struct pci_dev *pdev = to_pci_dev(device);
4900 struct net_device *dev = pci_get_drvdata(pdev);
4901 struct rtl8169_private *tp = netdev_priv(dev);
4902
4903 if (!tp->TxDescArray)
4904 return 0;
4905
4906 spin_lock_irq(&tp->lock);
4907 tp->saved_wolopts = __rtl8169_get_wol(tp);
4908 __rtl8169_set_wol(tp, WAKE_ANY);
4909 spin_unlock_irq(&tp->lock);
4910
4911 rtl8169_net_suspend(dev);
4912
4913 return 0;
4914 }
4915
4916 static int rtl8169_runtime_resume(struct device *device)
4917 {
4918 struct pci_dev *pdev = to_pci_dev(device);
4919 struct net_device *dev = pci_get_drvdata(pdev);
4920 struct rtl8169_private *tp = netdev_priv(dev);
4921
4922 if (!tp->TxDescArray)
4923 return 0;
4924
4925 spin_lock_irq(&tp->lock);
4926 __rtl8169_set_wol(tp, tp->saved_wolopts);
4927 tp->saved_wolopts = 0;
4928 spin_unlock_irq(&tp->lock);
4929
4930 __rtl8169_resume(dev);
4931
4932 return 0;
4933 }
4934
4935 static int rtl8169_runtime_idle(struct device *device)
4936 {
4937 struct pci_dev *pdev = to_pci_dev(device);
4938 struct net_device *dev = pci_get_drvdata(pdev);
4939 struct rtl8169_private *tp = netdev_priv(dev);
4940
4941 if (!tp->TxDescArray)
4942 return 0;
4943
4944 rtl8169_check_link_status(dev, tp, tp->mmio_addr);
4945 return -EBUSY;
4946 }
4947
4948 static const struct dev_pm_ops rtl8169_pm_ops = {
4949 .suspend = rtl8169_suspend,
4950 .resume = rtl8169_resume,
4951 .freeze = rtl8169_suspend,
4952 .thaw = rtl8169_resume,
4953 .poweroff = rtl8169_suspend,
4954 .restore = rtl8169_resume,
4955 .runtime_suspend = rtl8169_runtime_suspend,
4956 .runtime_resume = rtl8169_runtime_resume,
4957 .runtime_idle = rtl8169_runtime_idle,
4958 };
4959
4960 #define RTL8169_PM_OPS (&rtl8169_pm_ops)
4961
4962 #else /* !CONFIG_PM */
4963
4964 #define RTL8169_PM_OPS NULL
4965
4966 #endif /* !CONFIG_PM */
4967
4968 static void rtl_shutdown(struct pci_dev *pdev)
4969 {
4970 struct net_device *dev = pci_get_drvdata(pdev);
4971 struct rtl8169_private *tp = netdev_priv(dev);
4972 void __iomem *ioaddr = tp->mmio_addr;
4973
4974 rtl8169_net_suspend(dev);
4975
4976 /* restore original MAC address */
4977 rtl_rar_set(tp, dev->perm_addr);
4978
4979 spin_lock_irq(&tp->lock);
4980
4981 rtl8169_asic_down(ioaddr);
4982
4983 spin_unlock_irq(&tp->lock);
4984
4985 if (system_state == SYSTEM_POWER_OFF) {
4986 /* WoL fails with some 8168 when the receiver is disabled. */
4987 if (tp->features & RTL_FEATURE_WOL) {
4988 pci_clear_master(pdev);
4989
4990 RTL_W8(ChipCmd, CmdRxEnb);
4991 /* PCI commit */
4992 RTL_R8(ChipCmd);
4993 }
4994
4995 pci_wake_from_d3(pdev, true);
4996 pci_set_power_state(pdev, PCI_D3hot);
4997 }
4998 }
4999
5000 static struct pci_driver rtl8169_pci_driver = {
5001 .name = MODULENAME,
5002 .id_table = rtl8169_pci_tbl,
5003 .probe = rtl8169_init_one,
5004 .remove = __devexit_p(rtl8169_remove_one),
5005 .shutdown = rtl_shutdown,
5006 .driver.pm = RTL8169_PM_OPS,
5007 };
5008
5009 static int __init rtl8169_init_module(void)
5010 {
5011 return pci_register_driver(&rtl8169_pci_driver);
5012 }
5013
5014 static void __exit rtl8169_cleanup_module(void)
5015 {
5016 pci_unregister_driver(&rtl8169_pci_driver);
5017 }
5018
5019 module_init(rtl8169_init_module);
5020 module_exit(rtl8169_cleanup_module);
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