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Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | ========================================================================= | |
3 | r8169.c: A RealTek RTL-8169 Gigabit Ethernet driver for Linux kernel 2.4.x. | |
4 | -------------------------------------------------------------------- | |
5 | ||
6 | History: | |
7 | Feb 4 2002 - created initially by ShuChen <shuchen@realtek.com.tw>. | |
8 | May 20 2002 - Add link status force-mode and TBI mode support. | |
5b0384f4 | 9 | 2004 - Massive updates. See kernel SCM system for details. |
1da177e4 LT |
10 | ========================================================================= |
11 | 1. [DEPRECATED: use ethtool instead] The media can be forced in 5 modes. | |
12 | Command: 'insmod r8169 media = SET_MEDIA' | |
13 | Ex: 'insmod r8169 media = 0x04' will force PHY to operate in 100Mpbs Half-duplex. | |
5b0384f4 | 14 | |
1da177e4 LT |
15 | SET_MEDIA can be: |
16 | _10_Half = 0x01 | |
17 | _10_Full = 0x02 | |
18 | _100_Half = 0x04 | |
19 | _100_Full = 0x08 | |
20 | _1000_Full = 0x10 | |
5b0384f4 | 21 | |
1da177e4 LT |
22 | 2. Support TBI mode. |
23 | ========================================================================= | |
24 | VERSION 1.1 <2002/10/4> | |
25 | ||
26 | The bit4:0 of MII register 4 is called "selector field", and have to be | |
27 | 00001b to indicate support of IEEE std 802.3 during NWay process of | |
5b0384f4 | 28 | exchanging Link Code Word (FLP). |
1da177e4 LT |
29 | |
30 | VERSION 1.2 <2002/11/30> | |
31 | ||
32 | - Large style cleanup | |
33 | - Use ether_crc in stock kernel (linux/crc32.h) | |
34 | - Copy mc_filter setup code from 8139cp | |
35 | (includes an optimization, and avoids set_bit use) | |
36 | ||
37 | VERSION 1.6LK <2004/04/14> | |
38 | ||
39 | - Merge of Realtek's version 1.6 | |
40 | - Conversion to DMA API | |
41 | - Suspend/resume | |
42 | - Endianness | |
43 | - Misc Rx/Tx bugs | |
44 | ||
45 | VERSION 2.2LK <2005/01/25> | |
46 | ||
47 | - RX csum, TX csum/SG, TSO | |
48 | - VLAN | |
49 | - baby (< 7200) Jumbo frames support | |
50 | - Merge of Realtek's version 2.2 (new phy) | |
51 | */ | |
52 | ||
53 | #include <linux/module.h> | |
54 | #include <linux/moduleparam.h> | |
55 | #include <linux/pci.h> | |
56 | #include <linux/netdevice.h> | |
57 | #include <linux/etherdevice.h> | |
58 | #include <linux/delay.h> | |
59 | #include <linux/ethtool.h> | |
60 | #include <linux/mii.h> | |
61 | #include <linux/if_vlan.h> | |
62 | #include <linux/crc32.h> | |
63 | #include <linux/in.h> | |
64 | #include <linux/ip.h> | |
65 | #include <linux/tcp.h> | |
66 | #include <linux/init.h> | |
67 | #include <linux/dma-mapping.h> | |
68 | ||
99f252b0 | 69 | #include <asm/system.h> |
1da177e4 LT |
70 | #include <asm/io.h> |
71 | #include <asm/irq.h> | |
72 | ||
f7ccf420 SH |
73 | #ifdef CONFIG_R8169_NAPI |
74 | #define NAPI_SUFFIX "-NAPI" | |
75 | #else | |
76 | #define NAPI_SUFFIX "" | |
77 | #endif | |
78 | ||
79 | #define RTL8169_VERSION "2.2LK" NAPI_SUFFIX | |
1da177e4 LT |
80 | #define MODULENAME "r8169" |
81 | #define PFX MODULENAME ": " | |
82 | ||
83 | #ifdef RTL8169_DEBUG | |
84 | #define assert(expr) \ | |
5b0384f4 FR |
85 | if (!(expr)) { \ |
86 | printk( "Assertion failed! %s,%s,%s,line=%d\n", \ | |
87 | #expr,__FILE__,__FUNCTION__,__LINE__); \ | |
88 | } | |
1da177e4 LT |
89 | #define dprintk(fmt, args...) do { printk(PFX fmt, ## args); } while (0) |
90 | #else | |
91 | #define assert(expr) do {} while (0) | |
92 | #define dprintk(fmt, args...) do {} while (0) | |
93 | #endif /* RTL8169_DEBUG */ | |
94 | ||
b57b7e5a | 95 | #define R8169_MSG_DEFAULT \ |
f0e837d9 | 96 | (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_IFUP | NETIF_MSG_IFDOWN) |
b57b7e5a | 97 | |
1da177e4 LT |
98 | #define TX_BUFFS_AVAIL(tp) \ |
99 | (tp->dirty_tx + NUM_TX_DESC - tp->cur_tx - 1) | |
100 | ||
101 | #ifdef CONFIG_R8169_NAPI | |
102 | #define rtl8169_rx_skb netif_receive_skb | |
0b50f81d | 103 | #define rtl8169_rx_hwaccel_skb vlan_hwaccel_receive_skb |
1da177e4 LT |
104 | #define rtl8169_rx_quota(count, quota) min(count, quota) |
105 | #else | |
106 | #define rtl8169_rx_skb netif_rx | |
0b50f81d | 107 | #define rtl8169_rx_hwaccel_skb vlan_hwaccel_rx |
1da177e4 LT |
108 | #define rtl8169_rx_quota(count, quota) count |
109 | #endif | |
110 | ||
111 | /* media options */ | |
112 | #define MAX_UNITS 8 | |
113 | static int media[MAX_UNITS] = { -1, -1, -1, -1, -1, -1, -1, -1 }; | |
114 | static int num_media = 0; | |
115 | ||
116 | /* Maximum events (Rx packets, etc.) to handle at each interrupt. */ | |
f71e1309 | 117 | static const int max_interrupt_work = 20; |
1da177e4 LT |
118 | |
119 | /* Maximum number of multicast addresses to filter (vs. Rx-all-multicast). | |
120 | The RTL chips use a 64 element hash table based on the Ethernet CRC. */ | |
f71e1309 | 121 | static const int multicast_filter_limit = 32; |
1da177e4 LT |
122 | |
123 | /* MAC address length */ | |
124 | #define MAC_ADDR_LEN 6 | |
125 | ||
126 | #define RX_FIFO_THRESH 7 /* 7 means NO threshold, Rx buffer level before first PCI xfer. */ | |
127 | #define RX_DMA_BURST 6 /* Maximum PCI burst, '6' is 1024 */ | |
128 | #define TX_DMA_BURST 6 /* Maximum PCI burst, '6' is 1024 */ | |
129 | #define EarlyTxThld 0x3F /* 0x3F means NO early transmit */ | |
130 | #define RxPacketMaxSize 0x3FE8 /* 16K - 1 - ETH_HLEN - VLAN - CRC... */ | |
131 | #define SafeMtu 0x1c20 /* ... actually life sucks beyond ~7k */ | |
132 | #define InterFrameGap 0x03 /* 3 means InterFrameGap = the shortest one */ | |
133 | ||
134 | #define R8169_REGS_SIZE 256 | |
135 | #define R8169_NAPI_WEIGHT 64 | |
136 | #define NUM_TX_DESC 64 /* Number of Tx descriptor registers */ | |
137 | #define NUM_RX_DESC 256 /* Number of Rx descriptor registers */ | |
138 | #define RX_BUF_SIZE 1536 /* Rx Buffer size */ | |
139 | #define R8169_TX_RING_BYTES (NUM_TX_DESC * sizeof(struct TxDesc)) | |
140 | #define R8169_RX_RING_BYTES (NUM_RX_DESC * sizeof(struct RxDesc)) | |
141 | ||
142 | #define RTL8169_TX_TIMEOUT (6*HZ) | |
143 | #define RTL8169_PHY_TIMEOUT (10*HZ) | |
144 | ||
145 | /* write/read MMIO register */ | |
146 | #define RTL_W8(reg, val8) writeb ((val8), ioaddr + (reg)) | |
147 | #define RTL_W16(reg, val16) writew ((val16), ioaddr + (reg)) | |
148 | #define RTL_W32(reg, val32) writel ((val32), ioaddr + (reg)) | |
149 | #define RTL_R8(reg) readb (ioaddr + (reg)) | |
150 | #define RTL_R16(reg) readw (ioaddr + (reg)) | |
151 | #define RTL_R32(reg) ((unsigned long) readl (ioaddr + (reg))) | |
152 | ||
153 | enum mac_version { | |
bcf0bf90 FR |
154 | RTL_GIGA_MAC_VER_01 = 0x00, |
155 | RTL_GIGA_MAC_VER_02 = 0x01, | |
156 | RTL_GIGA_MAC_VER_03 = 0x02, | |
157 | RTL_GIGA_MAC_VER_04 = 0x03, | |
158 | RTL_GIGA_MAC_VER_05 = 0x04, | |
159 | RTL_GIGA_MAC_VER_11 = 0x0b, | |
160 | RTL_GIGA_MAC_VER_12 = 0x0c, | |
161 | RTL_GIGA_MAC_VER_13 = 0x0d, | |
162 | RTL_GIGA_MAC_VER_14 = 0x0e, | |
163 | RTL_GIGA_MAC_VER_15 = 0x0f | |
1da177e4 LT |
164 | }; |
165 | ||
166 | enum phy_version { | |
167 | RTL_GIGA_PHY_VER_C = 0x03, /* PHY Reg 0x03 bit0-3 == 0x0000 */ | |
168 | RTL_GIGA_PHY_VER_D = 0x04, /* PHY Reg 0x03 bit0-3 == 0x0000 */ | |
169 | RTL_GIGA_PHY_VER_E = 0x05, /* PHY Reg 0x03 bit0-3 == 0x0000 */ | |
170 | RTL_GIGA_PHY_VER_F = 0x06, /* PHY Reg 0x03 bit0-3 == 0x0001 */ | |
171 | RTL_GIGA_PHY_VER_G = 0x07, /* PHY Reg 0x03 bit0-3 == 0x0002 */ | |
172 | RTL_GIGA_PHY_VER_H = 0x08, /* PHY Reg 0x03 bit0-3 == 0x0003 */ | |
173 | }; | |
174 | ||
1da177e4 LT |
175 | #define _R(NAME,MAC,MASK) \ |
176 | { .name = NAME, .mac_version = MAC, .RxConfigMask = MASK } | |
177 | ||
3c6bee1d | 178 | static const struct { |
1da177e4 LT |
179 | const char *name; |
180 | u8 mac_version; | |
181 | u32 RxConfigMask; /* Clears the bits supported by this chip */ | |
182 | } rtl_chip_info[] = { | |
bcf0bf90 FR |
183 | _R("RTL8169", RTL_GIGA_MAC_VER_01, 0xff7e1880), |
184 | _R("RTL8169s/8110s", RTL_GIGA_MAC_VER_02, 0xff7e1880), | |
185 | _R("RTL8169s/8110s", RTL_GIGA_MAC_VER_03, 0xff7e1880), | |
186 | _R("RTL8169sb/8110sb", RTL_GIGA_MAC_VER_04, 0xff7e1880), | |
187 | _R("RTL8169sc/8110sc", RTL_GIGA_MAC_VER_05, 0xff7e1880), | |
188 | _R("RTL8168b/8111b", RTL_GIGA_MAC_VER_11, 0xff7e1880), // PCI-E | |
189 | _R("RTL8168b/8111b", RTL_GIGA_MAC_VER_12, 0xff7e1880), // PCI-E | |
190 | _R("RTL8101e", RTL_GIGA_MAC_VER_13, 0xff7e1880), // PCI-E 8139 | |
191 | _R("RTL8100e", RTL_GIGA_MAC_VER_14, 0xff7e1880), // PCI-E 8139 | |
192 | _R("RTL8100e", RTL_GIGA_MAC_VER_15, 0xff7e1880) // PCI-E 8139 | |
1da177e4 LT |
193 | }; |
194 | #undef _R | |
195 | ||
bcf0bf90 FR |
196 | enum cfg_version { |
197 | RTL_CFG_0 = 0x00, | |
198 | RTL_CFG_1, | |
199 | RTL_CFG_2 | |
200 | }; | |
201 | ||
202 | static const struct { | |
203 | unsigned int region; | |
204 | unsigned int align; | |
205 | } rtl_cfg_info[] = { | |
206 | [RTL_CFG_0] = { 1, NET_IP_ALIGN }, | |
207 | [RTL_CFG_1] = { 2, NET_IP_ALIGN }, | |
208 | [RTL_CFG_2] = { 2, 8 } | |
209 | }; | |
210 | ||
1da177e4 | 211 | static struct pci_device_id rtl8169_pci_tbl[] = { |
bcf0bf90 | 212 | { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8129), 0, 0, RTL_CFG_0 }, |
d2eed8cf | 213 | { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8136), 0, 0, RTL_CFG_2 }, |
d81bf551 | 214 | { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8167), 0, 0, RTL_CFG_0 }, |
bcf0bf90 FR |
215 | { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8168), 0, 0, RTL_CFG_2 }, |
216 | { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8169), 0, 0, RTL_CFG_0 }, | |
217 | { PCI_DEVICE(PCI_VENDOR_ID_DLINK, 0x4300), 0, 0, RTL_CFG_0 }, | |
73f5e28b | 218 | { PCI_DEVICE(0x1259, 0xc107), 0, 0, RTL_CFG_0 }, |
bcf0bf90 FR |
219 | { PCI_DEVICE(0x16ec, 0x0116), 0, 0, RTL_CFG_0 }, |
220 | { PCI_VENDOR_ID_LINKSYS, 0x1032, | |
221 | PCI_ANY_ID, 0x0024, 0, 0, RTL_CFG_0 }, | |
1da177e4 LT |
222 | {0,}, |
223 | }; | |
224 | ||
225 | MODULE_DEVICE_TABLE(pci, rtl8169_pci_tbl); | |
226 | ||
227 | static int rx_copybreak = 200; | |
228 | static int use_dac; | |
b57b7e5a SH |
229 | static struct { |
230 | u32 msg_enable; | |
231 | } debug = { -1 }; | |
1da177e4 LT |
232 | |
233 | enum RTL8169_registers { | |
234 | MAC0 = 0, /* Ethernet hardware address. */ | |
235 | MAR0 = 8, /* Multicast filter. */ | |
d4a3a0fc SH |
236 | CounterAddrLow = 0x10, |
237 | CounterAddrHigh = 0x14, | |
1da177e4 LT |
238 | TxDescStartAddrLow = 0x20, |
239 | TxDescStartAddrHigh = 0x24, | |
240 | TxHDescStartAddrLow = 0x28, | |
241 | TxHDescStartAddrHigh = 0x2c, | |
242 | FLASH = 0x30, | |
243 | ERSR = 0x36, | |
244 | ChipCmd = 0x37, | |
245 | TxPoll = 0x38, | |
246 | IntrMask = 0x3C, | |
247 | IntrStatus = 0x3E, | |
248 | TxConfig = 0x40, | |
249 | RxConfig = 0x44, | |
250 | RxMissed = 0x4C, | |
251 | Cfg9346 = 0x50, | |
252 | Config0 = 0x51, | |
253 | Config1 = 0x52, | |
254 | Config2 = 0x53, | |
255 | Config3 = 0x54, | |
256 | Config4 = 0x55, | |
257 | Config5 = 0x56, | |
258 | MultiIntr = 0x5C, | |
259 | PHYAR = 0x60, | |
260 | TBICSR = 0x64, | |
261 | TBI_ANAR = 0x68, | |
262 | TBI_LPAR = 0x6A, | |
263 | PHYstatus = 0x6C, | |
264 | RxMaxSize = 0xDA, | |
265 | CPlusCmd = 0xE0, | |
266 | IntrMitigate = 0xE2, | |
267 | RxDescAddrLow = 0xE4, | |
268 | RxDescAddrHigh = 0xE8, | |
269 | EarlyTxThres = 0xEC, | |
270 | FuncEvent = 0xF0, | |
271 | FuncEventMask = 0xF4, | |
272 | FuncPresetState = 0xF8, | |
273 | FuncForceEvent = 0xFC, | |
274 | }; | |
275 | ||
276 | enum RTL8169_register_content { | |
277 | /* InterruptStatusBits */ | |
278 | SYSErr = 0x8000, | |
279 | PCSTimeout = 0x4000, | |
280 | SWInt = 0x0100, | |
281 | TxDescUnavail = 0x80, | |
282 | RxFIFOOver = 0x40, | |
283 | LinkChg = 0x20, | |
284 | RxOverflow = 0x10, | |
285 | TxErr = 0x08, | |
286 | TxOK = 0x04, | |
287 | RxErr = 0x02, | |
288 | RxOK = 0x01, | |
289 | ||
290 | /* RxStatusDesc */ | |
9dccf611 FR |
291 | RxFOVF = (1 << 23), |
292 | RxRWT = (1 << 22), | |
293 | RxRES = (1 << 21), | |
294 | RxRUNT = (1 << 20), | |
295 | RxCRC = (1 << 19), | |
1da177e4 LT |
296 | |
297 | /* ChipCmdBits */ | |
298 | CmdReset = 0x10, | |
299 | CmdRxEnb = 0x08, | |
300 | CmdTxEnb = 0x04, | |
301 | RxBufEmpty = 0x01, | |
302 | ||
303 | /* Cfg9346Bits */ | |
304 | Cfg9346_Lock = 0x00, | |
305 | Cfg9346_Unlock = 0xC0, | |
306 | ||
307 | /* rx_mode_bits */ | |
308 | AcceptErr = 0x20, | |
309 | AcceptRunt = 0x10, | |
310 | AcceptBroadcast = 0x08, | |
311 | AcceptMulticast = 0x04, | |
312 | AcceptMyPhys = 0x02, | |
313 | AcceptAllPhys = 0x01, | |
314 | ||
315 | /* RxConfigBits */ | |
316 | RxCfgFIFOShift = 13, | |
317 | RxCfgDMAShift = 8, | |
318 | ||
319 | /* TxConfigBits */ | |
320 | TxInterFrameGapShift = 24, | |
321 | TxDMAShift = 8, /* DMA burst value (0-7) is shift this many bits */ | |
322 | ||
5d06a99f FR |
323 | /* Config1 register p.24 */ |
324 | PMEnable = (1 << 0), /* Power Management Enable */ | |
325 | ||
61a4dcc2 FR |
326 | /* Config3 register p.25 */ |
327 | MagicPacket = (1 << 5), /* Wake up when receives a Magic Packet */ | |
328 | LinkUp = (1 << 4), /* Wake up when the cable connection is re-established */ | |
329 | ||
5d06a99f | 330 | /* Config5 register p.27 */ |
61a4dcc2 FR |
331 | BWF = (1 << 6), /* Accept Broadcast wakeup frame */ |
332 | MWF = (1 << 5), /* Accept Multicast wakeup frame */ | |
333 | UWF = (1 << 4), /* Accept Unicast wakeup frame */ | |
334 | LanWake = (1 << 1), /* LanWake enable/disable */ | |
5d06a99f FR |
335 | PMEStatus = (1 << 0), /* PME status can be reset by PCI RST# */ |
336 | ||
1da177e4 LT |
337 | /* TBICSR p.28 */ |
338 | TBIReset = 0x80000000, | |
339 | TBILoopback = 0x40000000, | |
340 | TBINwEnable = 0x20000000, | |
341 | TBINwRestart = 0x10000000, | |
342 | TBILinkOk = 0x02000000, | |
343 | TBINwComplete = 0x01000000, | |
344 | ||
345 | /* CPlusCmd p.31 */ | |
346 | RxVlan = (1 << 6), | |
347 | RxChkSum = (1 << 5), | |
348 | PCIDAC = (1 << 4), | |
349 | PCIMulRW = (1 << 3), | |
350 | ||
351 | /* rtl8169_PHYstatus */ | |
352 | TBI_Enable = 0x80, | |
353 | TxFlowCtrl = 0x40, | |
354 | RxFlowCtrl = 0x20, | |
355 | _1000bpsF = 0x10, | |
356 | _100bps = 0x08, | |
357 | _10bps = 0x04, | |
358 | LinkStatus = 0x02, | |
359 | FullDup = 0x01, | |
360 | ||
1da177e4 LT |
361 | /* _MediaType */ |
362 | _10_Half = 0x01, | |
363 | _10_Full = 0x02, | |
364 | _100_Half = 0x04, | |
365 | _100_Full = 0x08, | |
366 | _1000_Full = 0x10, | |
367 | ||
368 | /* _TBICSRBit */ | |
369 | TBILinkOK = 0x02000000, | |
d4a3a0fc SH |
370 | |
371 | /* DumpCounterCommand */ | |
372 | CounterDump = 0x8, | |
1da177e4 LT |
373 | }; |
374 | ||
375 | enum _DescStatusBit { | |
376 | DescOwn = (1 << 31), /* Descriptor is owned by NIC */ | |
377 | RingEnd = (1 << 30), /* End of descriptor ring */ | |
378 | FirstFrag = (1 << 29), /* First segment of a packet */ | |
379 | LastFrag = (1 << 28), /* Final segment of a packet */ | |
380 | ||
381 | /* Tx private */ | |
382 | LargeSend = (1 << 27), /* TCP Large Send Offload (TSO) */ | |
383 | MSSShift = 16, /* MSS value position */ | |
384 | MSSMask = 0xfff, /* MSS value + LargeSend bit: 12 bits */ | |
385 | IPCS = (1 << 18), /* Calculate IP checksum */ | |
386 | UDPCS = (1 << 17), /* Calculate UDP/IP checksum */ | |
387 | TCPCS = (1 << 16), /* Calculate TCP/IP checksum */ | |
388 | TxVlanTag = (1 << 17), /* Add VLAN tag */ | |
389 | ||
390 | /* Rx private */ | |
391 | PID1 = (1 << 18), /* Protocol ID bit 1/2 */ | |
392 | PID0 = (1 << 17), /* Protocol ID bit 2/2 */ | |
393 | ||
394 | #define RxProtoUDP (PID1) | |
395 | #define RxProtoTCP (PID0) | |
396 | #define RxProtoIP (PID1 | PID0) | |
397 | #define RxProtoMask RxProtoIP | |
398 | ||
399 | IPFail = (1 << 16), /* IP checksum failed */ | |
400 | UDPFail = (1 << 15), /* UDP/IP checksum failed */ | |
401 | TCPFail = (1 << 14), /* TCP/IP checksum failed */ | |
402 | RxVlanTag = (1 << 16), /* VLAN tag available */ | |
403 | }; | |
404 | ||
405 | #define RsvdMask 0x3fffc000 | |
406 | ||
407 | struct TxDesc { | |
408 | u32 opts1; | |
409 | u32 opts2; | |
410 | u64 addr; | |
411 | }; | |
412 | ||
413 | struct RxDesc { | |
414 | u32 opts1; | |
415 | u32 opts2; | |
416 | u64 addr; | |
417 | }; | |
418 | ||
419 | struct ring_info { | |
420 | struct sk_buff *skb; | |
421 | u32 len; | |
422 | u8 __pad[sizeof(void *) - sizeof(u32)]; | |
423 | }; | |
424 | ||
425 | struct rtl8169_private { | |
426 | void __iomem *mmio_addr; /* memory map physical address */ | |
427 | struct pci_dev *pci_dev; /* Index of PCI device */ | |
c4028958 | 428 | struct net_device *dev; |
1da177e4 LT |
429 | struct net_device_stats stats; /* statistics of net device */ |
430 | spinlock_t lock; /* spin lock flag */ | |
b57b7e5a | 431 | u32 msg_enable; |
1da177e4 LT |
432 | int chipset; |
433 | int mac_version; | |
434 | int phy_version; | |
435 | u32 cur_rx; /* Index into the Rx descriptor buffer of next Rx pkt. */ | |
436 | u32 cur_tx; /* Index into the Tx descriptor buffer of next Rx pkt. */ | |
437 | u32 dirty_rx; | |
438 | u32 dirty_tx; | |
439 | struct TxDesc *TxDescArray; /* 256-aligned Tx descriptor ring */ | |
440 | struct RxDesc *RxDescArray; /* 256-aligned Rx descriptor ring */ | |
441 | dma_addr_t TxPhyAddr; | |
442 | dma_addr_t RxPhyAddr; | |
443 | struct sk_buff *Rx_skbuff[NUM_RX_DESC]; /* Rx data buffers */ | |
444 | struct ring_info tx_skb[NUM_TX_DESC]; /* Tx data buffers */ | |
bcf0bf90 | 445 | unsigned align; |
1da177e4 LT |
446 | unsigned rx_buf_sz; |
447 | struct timer_list timer; | |
448 | u16 cp_cmd; | |
449 | u16 intr_mask; | |
450 | int phy_auto_nego_reg; | |
451 | int phy_1000_ctrl_reg; | |
452 | #ifdef CONFIG_R8169_VLAN | |
453 | struct vlan_group *vlgrp; | |
454 | #endif | |
455 | int (*set_speed)(struct net_device *, u8 autoneg, u16 speed, u8 duplex); | |
456 | void (*get_settings)(struct net_device *, struct ethtool_cmd *); | |
457 | void (*phy_reset_enable)(void __iomem *); | |
458 | unsigned int (*phy_reset_pending)(void __iomem *); | |
459 | unsigned int (*link_ok)(void __iomem *); | |
c4028958 | 460 | struct delayed_work task; |
61a4dcc2 | 461 | unsigned wol_enabled : 1; |
1da177e4 LT |
462 | }; |
463 | ||
979b6c13 | 464 | MODULE_AUTHOR("Realtek and the Linux r8169 crew <netdev@vger.kernel.org>"); |
1da177e4 LT |
465 | MODULE_DESCRIPTION("RealTek RTL-8169 Gigabit Ethernet driver"); |
466 | module_param_array(media, int, &num_media, 0); | |
df0a1bf6 | 467 | MODULE_PARM_DESC(media, "force phy operation. Deprecated by ethtool (8)."); |
1da177e4 | 468 | module_param(rx_copybreak, int, 0); |
1b7efd58 | 469 | MODULE_PARM_DESC(rx_copybreak, "Copy breakpoint for copy-only-tiny-frames"); |
1da177e4 LT |
470 | module_param(use_dac, int, 0); |
471 | MODULE_PARM_DESC(use_dac, "Enable PCI DAC. Unsafe on 32 bit PCI slot."); | |
b57b7e5a SH |
472 | module_param_named(debug, debug.msg_enable, int, 0); |
473 | MODULE_PARM_DESC(debug, "Debug verbosity level (0=none, ..., 16=all)"); | |
1da177e4 LT |
474 | MODULE_LICENSE("GPL"); |
475 | MODULE_VERSION(RTL8169_VERSION); | |
476 | ||
477 | static int rtl8169_open(struct net_device *dev); | |
478 | static int rtl8169_start_xmit(struct sk_buff *skb, struct net_device *dev); | |
7d12e780 | 479 | static irqreturn_t rtl8169_interrupt(int irq, void *dev_instance); |
1da177e4 LT |
480 | static int rtl8169_init_ring(struct net_device *dev); |
481 | static void rtl8169_hw_start(struct net_device *dev); | |
482 | static int rtl8169_close(struct net_device *dev); | |
483 | static void rtl8169_set_rx_mode(struct net_device *dev); | |
484 | static void rtl8169_tx_timeout(struct net_device *dev); | |
4dcb7d33 | 485 | static struct net_device_stats *rtl8169_get_stats(struct net_device *dev); |
1da177e4 LT |
486 | static int rtl8169_rx_interrupt(struct net_device *, struct rtl8169_private *, |
487 | void __iomem *); | |
4dcb7d33 | 488 | static int rtl8169_change_mtu(struct net_device *dev, int new_mtu); |
1da177e4 | 489 | static void rtl8169_down(struct net_device *dev); |
99f252b0 | 490 | static void rtl8169_rx_clear(struct rtl8169_private *tp); |
1da177e4 LT |
491 | |
492 | #ifdef CONFIG_R8169_NAPI | |
493 | static int rtl8169_poll(struct net_device *dev, int *budget); | |
494 | #endif | |
495 | ||
496 | static const u16 rtl8169_intr_mask = | |
497 | SYSErr | LinkChg | RxOverflow | RxFIFOOver | TxErr | TxOK | RxErr | RxOK; | |
498 | static const u16 rtl8169_napi_event = | |
499 | RxOK | RxOverflow | RxFIFOOver | TxOK | TxErr; | |
500 | static const unsigned int rtl8169_rx_config = | |
5b0384f4 | 501 | (RX_FIFO_THRESH << RxCfgFIFOShift) | (RX_DMA_BURST << RxCfgDMAShift); |
1da177e4 LT |
502 | |
503 | static void mdio_write(void __iomem *ioaddr, int RegAddr, int value) | |
504 | { | |
505 | int i; | |
506 | ||
507 | RTL_W32(PHYAR, 0x80000000 | (RegAddr & 0xFF) << 16 | value); | |
1da177e4 | 508 | |
2371408c | 509 | for (i = 20; i > 0; i--) { |
1da177e4 | 510 | /* Check if the RTL8169 has completed writing to the specified MII register */ |
5b0384f4 | 511 | if (!(RTL_R32(PHYAR) & 0x80000000)) |
1da177e4 | 512 | break; |
2371408c | 513 | udelay(25); |
1da177e4 LT |
514 | } |
515 | } | |
516 | ||
517 | static int mdio_read(void __iomem *ioaddr, int RegAddr) | |
518 | { | |
519 | int i, value = -1; | |
520 | ||
521 | RTL_W32(PHYAR, 0x0 | (RegAddr & 0xFF) << 16); | |
1da177e4 | 522 | |
2371408c | 523 | for (i = 20; i > 0; i--) { |
1da177e4 LT |
524 | /* Check if the RTL8169 has completed retrieving data from the specified MII register */ |
525 | if (RTL_R32(PHYAR) & 0x80000000) { | |
526 | value = (int) (RTL_R32(PHYAR) & 0xFFFF); | |
527 | break; | |
528 | } | |
2371408c | 529 | udelay(25); |
1da177e4 LT |
530 | } |
531 | return value; | |
532 | } | |
533 | ||
534 | static void rtl8169_irq_mask_and_ack(void __iomem *ioaddr) | |
535 | { | |
536 | RTL_W16(IntrMask, 0x0000); | |
537 | ||
538 | RTL_W16(IntrStatus, 0xffff); | |
539 | } | |
540 | ||
541 | static void rtl8169_asic_down(void __iomem *ioaddr) | |
542 | { | |
543 | RTL_W8(ChipCmd, 0x00); | |
544 | rtl8169_irq_mask_and_ack(ioaddr); | |
545 | RTL_R16(CPlusCmd); | |
546 | } | |
547 | ||
548 | static unsigned int rtl8169_tbi_reset_pending(void __iomem *ioaddr) | |
549 | { | |
550 | return RTL_R32(TBICSR) & TBIReset; | |
551 | } | |
552 | ||
553 | static unsigned int rtl8169_xmii_reset_pending(void __iomem *ioaddr) | |
554 | { | |
64e4bfb4 | 555 | return mdio_read(ioaddr, MII_BMCR) & BMCR_RESET; |
1da177e4 LT |
556 | } |
557 | ||
558 | static unsigned int rtl8169_tbi_link_ok(void __iomem *ioaddr) | |
559 | { | |
560 | return RTL_R32(TBICSR) & TBILinkOk; | |
561 | } | |
562 | ||
563 | static unsigned int rtl8169_xmii_link_ok(void __iomem *ioaddr) | |
564 | { | |
565 | return RTL_R8(PHYstatus) & LinkStatus; | |
566 | } | |
567 | ||
568 | static void rtl8169_tbi_reset_enable(void __iomem *ioaddr) | |
569 | { | |
570 | RTL_W32(TBICSR, RTL_R32(TBICSR) | TBIReset); | |
571 | } | |
572 | ||
573 | static void rtl8169_xmii_reset_enable(void __iomem *ioaddr) | |
574 | { | |
575 | unsigned int val; | |
576 | ||
9e0db8ef FR |
577 | val = mdio_read(ioaddr, MII_BMCR) | BMCR_RESET; |
578 | mdio_write(ioaddr, MII_BMCR, val & 0xffff); | |
1da177e4 LT |
579 | } |
580 | ||
581 | static void rtl8169_check_link_status(struct net_device *dev, | |
582 | struct rtl8169_private *tp, void __iomem *ioaddr) | |
583 | { | |
584 | unsigned long flags; | |
585 | ||
586 | spin_lock_irqsave(&tp->lock, flags); | |
587 | if (tp->link_ok(ioaddr)) { | |
588 | netif_carrier_on(dev); | |
b57b7e5a SH |
589 | if (netif_msg_ifup(tp)) |
590 | printk(KERN_INFO PFX "%s: link up\n", dev->name); | |
591 | } else { | |
592 | if (netif_msg_ifdown(tp)) | |
593 | printk(KERN_INFO PFX "%s: link down\n", dev->name); | |
1da177e4 | 594 | netif_carrier_off(dev); |
b57b7e5a | 595 | } |
1da177e4 LT |
596 | spin_unlock_irqrestore(&tp->lock, flags); |
597 | } | |
598 | ||
599 | static void rtl8169_link_option(int idx, u8 *autoneg, u16 *speed, u8 *duplex) | |
600 | { | |
601 | struct { | |
602 | u16 speed; | |
603 | u8 duplex; | |
604 | u8 autoneg; | |
605 | u8 media; | |
606 | } link_settings[] = { | |
607 | { SPEED_10, DUPLEX_HALF, AUTONEG_DISABLE, _10_Half }, | |
608 | { SPEED_10, DUPLEX_FULL, AUTONEG_DISABLE, _10_Full }, | |
609 | { SPEED_100, DUPLEX_HALF, AUTONEG_DISABLE, _100_Half }, | |
610 | { SPEED_100, DUPLEX_FULL, AUTONEG_DISABLE, _100_Full }, | |
611 | { SPEED_1000, DUPLEX_FULL, AUTONEG_DISABLE, _1000_Full }, | |
612 | /* Make TBI happy */ | |
613 | { SPEED_1000, DUPLEX_FULL, AUTONEG_ENABLE, 0xff } | |
614 | }, *p; | |
615 | unsigned char option; | |
5b0384f4 | 616 | |
1da177e4 LT |
617 | option = ((idx < MAX_UNITS) && (idx >= 0)) ? media[idx] : 0xff; |
618 | ||
b57b7e5a | 619 | if ((option != 0xff) && !idx && netif_msg_drv(&debug)) |
1da177e4 LT |
620 | printk(KERN_WARNING PFX "media option is deprecated.\n"); |
621 | ||
622 | for (p = link_settings; p->media != 0xff; p++) { | |
623 | if (p->media == option) | |
624 | break; | |
625 | } | |
626 | *autoneg = p->autoneg; | |
627 | *speed = p->speed; | |
628 | *duplex = p->duplex; | |
629 | } | |
630 | ||
61a4dcc2 FR |
631 | static void rtl8169_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol) |
632 | { | |
633 | struct rtl8169_private *tp = netdev_priv(dev); | |
634 | void __iomem *ioaddr = tp->mmio_addr; | |
635 | u8 options; | |
636 | ||
637 | wol->wolopts = 0; | |
638 | ||
639 | #define WAKE_ANY (WAKE_PHY | WAKE_MAGIC | WAKE_UCAST | WAKE_BCAST | WAKE_MCAST) | |
640 | wol->supported = WAKE_ANY; | |
641 | ||
642 | spin_lock_irq(&tp->lock); | |
643 | ||
644 | options = RTL_R8(Config1); | |
645 | if (!(options & PMEnable)) | |
646 | goto out_unlock; | |
647 | ||
648 | options = RTL_R8(Config3); | |
649 | if (options & LinkUp) | |
650 | wol->wolopts |= WAKE_PHY; | |
651 | if (options & MagicPacket) | |
652 | wol->wolopts |= WAKE_MAGIC; | |
653 | ||
654 | options = RTL_R8(Config5); | |
655 | if (options & UWF) | |
656 | wol->wolopts |= WAKE_UCAST; | |
657 | if (options & BWF) | |
5b0384f4 | 658 | wol->wolopts |= WAKE_BCAST; |
61a4dcc2 | 659 | if (options & MWF) |
5b0384f4 | 660 | wol->wolopts |= WAKE_MCAST; |
61a4dcc2 FR |
661 | |
662 | out_unlock: | |
663 | spin_unlock_irq(&tp->lock); | |
664 | } | |
665 | ||
666 | static int rtl8169_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) | |
667 | { | |
668 | struct rtl8169_private *tp = netdev_priv(dev); | |
669 | void __iomem *ioaddr = tp->mmio_addr; | |
670 | int i; | |
671 | static struct { | |
672 | u32 opt; | |
673 | u16 reg; | |
674 | u8 mask; | |
675 | } cfg[] = { | |
676 | { WAKE_ANY, Config1, PMEnable }, | |
677 | { WAKE_PHY, Config3, LinkUp }, | |
678 | { WAKE_MAGIC, Config3, MagicPacket }, | |
679 | { WAKE_UCAST, Config5, UWF }, | |
680 | { WAKE_BCAST, Config5, BWF }, | |
681 | { WAKE_MCAST, Config5, MWF }, | |
682 | { WAKE_ANY, Config5, LanWake } | |
683 | }; | |
684 | ||
685 | spin_lock_irq(&tp->lock); | |
686 | ||
687 | RTL_W8(Cfg9346, Cfg9346_Unlock); | |
688 | ||
689 | for (i = 0; i < ARRAY_SIZE(cfg); i++) { | |
690 | u8 options = RTL_R8(cfg[i].reg) & ~cfg[i].mask; | |
691 | if (wol->wolopts & cfg[i].opt) | |
692 | options |= cfg[i].mask; | |
693 | RTL_W8(cfg[i].reg, options); | |
694 | } | |
695 | ||
696 | RTL_W8(Cfg9346, Cfg9346_Lock); | |
697 | ||
698 | tp->wol_enabled = (wol->wolopts) ? 1 : 0; | |
699 | ||
700 | spin_unlock_irq(&tp->lock); | |
701 | ||
702 | return 0; | |
703 | } | |
704 | ||
1da177e4 LT |
705 | static void rtl8169_get_drvinfo(struct net_device *dev, |
706 | struct ethtool_drvinfo *info) | |
707 | { | |
708 | struct rtl8169_private *tp = netdev_priv(dev); | |
709 | ||
710 | strcpy(info->driver, MODULENAME); | |
711 | strcpy(info->version, RTL8169_VERSION); | |
712 | strcpy(info->bus_info, pci_name(tp->pci_dev)); | |
713 | } | |
714 | ||
715 | static int rtl8169_get_regs_len(struct net_device *dev) | |
716 | { | |
717 | return R8169_REGS_SIZE; | |
718 | } | |
719 | ||
720 | static int rtl8169_set_speed_tbi(struct net_device *dev, | |
721 | u8 autoneg, u16 speed, u8 duplex) | |
722 | { | |
723 | struct rtl8169_private *tp = netdev_priv(dev); | |
724 | void __iomem *ioaddr = tp->mmio_addr; | |
725 | int ret = 0; | |
726 | u32 reg; | |
727 | ||
728 | reg = RTL_R32(TBICSR); | |
729 | if ((autoneg == AUTONEG_DISABLE) && (speed == SPEED_1000) && | |
730 | (duplex == DUPLEX_FULL)) { | |
731 | RTL_W32(TBICSR, reg & ~(TBINwEnable | TBINwRestart)); | |
732 | } else if (autoneg == AUTONEG_ENABLE) | |
733 | RTL_W32(TBICSR, reg | TBINwEnable | TBINwRestart); | |
734 | else { | |
b57b7e5a SH |
735 | if (netif_msg_link(tp)) { |
736 | printk(KERN_WARNING "%s: " | |
737 | "incorrect speed setting refused in TBI mode\n", | |
738 | dev->name); | |
739 | } | |
1da177e4 LT |
740 | ret = -EOPNOTSUPP; |
741 | } | |
742 | ||
743 | return ret; | |
744 | } | |
745 | ||
746 | static int rtl8169_set_speed_xmii(struct net_device *dev, | |
747 | u8 autoneg, u16 speed, u8 duplex) | |
748 | { | |
749 | struct rtl8169_private *tp = netdev_priv(dev); | |
750 | void __iomem *ioaddr = tp->mmio_addr; | |
751 | int auto_nego, giga_ctrl; | |
752 | ||
64e4bfb4 FR |
753 | auto_nego = mdio_read(ioaddr, MII_ADVERTISE); |
754 | auto_nego &= ~(ADVERTISE_10HALF | ADVERTISE_10FULL | | |
755 | ADVERTISE_100HALF | ADVERTISE_100FULL); | |
756 | giga_ctrl = mdio_read(ioaddr, MII_CTRL1000); | |
757 | giga_ctrl &= ~(ADVERTISE_1000FULL | ADVERTISE_1000HALF); | |
1da177e4 LT |
758 | |
759 | if (autoneg == AUTONEG_ENABLE) { | |
64e4bfb4 FR |
760 | auto_nego |= (ADVERTISE_10HALF | ADVERTISE_10FULL | |
761 | ADVERTISE_100HALF | ADVERTISE_100FULL); | |
762 | giga_ctrl |= ADVERTISE_1000FULL | ADVERTISE_1000HALF; | |
1da177e4 LT |
763 | } else { |
764 | if (speed == SPEED_10) | |
64e4bfb4 | 765 | auto_nego |= ADVERTISE_10HALF | ADVERTISE_10FULL; |
1da177e4 | 766 | else if (speed == SPEED_100) |
64e4bfb4 | 767 | auto_nego |= ADVERTISE_100HALF | ADVERTISE_100FULL; |
1da177e4 | 768 | else if (speed == SPEED_1000) |
64e4bfb4 | 769 | giga_ctrl |= ADVERTISE_1000FULL | ADVERTISE_1000HALF; |
1da177e4 LT |
770 | |
771 | if (duplex == DUPLEX_HALF) | |
64e4bfb4 | 772 | auto_nego &= ~(ADVERTISE_10FULL | ADVERTISE_100FULL); |
726ecdcf AG |
773 | |
774 | if (duplex == DUPLEX_FULL) | |
64e4bfb4 | 775 | auto_nego &= ~(ADVERTISE_10HALF | ADVERTISE_100HALF); |
bcf0bf90 FR |
776 | |
777 | /* This tweak comes straight from Realtek's driver. */ | |
778 | if ((speed == SPEED_100) && (duplex == DUPLEX_HALF) && | |
779 | (tp->mac_version == RTL_GIGA_MAC_VER_13)) { | |
64e4bfb4 | 780 | auto_nego = ADVERTISE_100HALF | ADVERTISE_CSMA; |
bcf0bf90 FR |
781 | } |
782 | } | |
783 | ||
784 | /* The 8100e/8101e do Fast Ethernet only. */ | |
785 | if ((tp->mac_version == RTL_GIGA_MAC_VER_13) || | |
786 | (tp->mac_version == RTL_GIGA_MAC_VER_14) || | |
787 | (tp->mac_version == RTL_GIGA_MAC_VER_15)) { | |
64e4bfb4 | 788 | if ((giga_ctrl & (ADVERTISE_1000FULL | ADVERTISE_1000HALF)) && |
bcf0bf90 FR |
789 | netif_msg_link(tp)) { |
790 | printk(KERN_INFO "%s: PHY does not support 1000Mbps.\n", | |
791 | dev->name); | |
792 | } | |
64e4bfb4 | 793 | giga_ctrl &= ~(ADVERTISE_1000FULL | ADVERTISE_1000HALF); |
1da177e4 LT |
794 | } |
795 | ||
623a1593 FR |
796 | auto_nego |= ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM; |
797 | ||
1da177e4 LT |
798 | tp->phy_auto_nego_reg = auto_nego; |
799 | tp->phy_1000_ctrl_reg = giga_ctrl; | |
800 | ||
64e4bfb4 FR |
801 | mdio_write(ioaddr, MII_ADVERTISE, auto_nego); |
802 | mdio_write(ioaddr, MII_CTRL1000, giga_ctrl); | |
803 | mdio_write(ioaddr, MII_BMCR, BMCR_ANENABLE | BMCR_ANRESTART); | |
1da177e4 LT |
804 | return 0; |
805 | } | |
806 | ||
807 | static int rtl8169_set_speed(struct net_device *dev, | |
808 | u8 autoneg, u16 speed, u8 duplex) | |
809 | { | |
810 | struct rtl8169_private *tp = netdev_priv(dev); | |
811 | int ret; | |
812 | ||
813 | ret = tp->set_speed(dev, autoneg, speed, duplex); | |
814 | ||
64e4bfb4 | 815 | if (netif_running(dev) && (tp->phy_1000_ctrl_reg & ADVERTISE_1000FULL)) |
1da177e4 LT |
816 | mod_timer(&tp->timer, jiffies + RTL8169_PHY_TIMEOUT); |
817 | ||
818 | return ret; | |
819 | } | |
820 | ||
821 | static int rtl8169_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) | |
822 | { | |
823 | struct rtl8169_private *tp = netdev_priv(dev); | |
824 | unsigned long flags; | |
825 | int ret; | |
826 | ||
827 | spin_lock_irqsave(&tp->lock, flags); | |
828 | ret = rtl8169_set_speed(dev, cmd->autoneg, cmd->speed, cmd->duplex); | |
829 | spin_unlock_irqrestore(&tp->lock, flags); | |
5b0384f4 | 830 | |
1da177e4 LT |
831 | return ret; |
832 | } | |
833 | ||
834 | static u32 rtl8169_get_rx_csum(struct net_device *dev) | |
835 | { | |
836 | struct rtl8169_private *tp = netdev_priv(dev); | |
837 | ||
838 | return tp->cp_cmd & RxChkSum; | |
839 | } | |
840 | ||
841 | static int rtl8169_set_rx_csum(struct net_device *dev, u32 data) | |
842 | { | |
843 | struct rtl8169_private *tp = netdev_priv(dev); | |
844 | void __iomem *ioaddr = tp->mmio_addr; | |
845 | unsigned long flags; | |
846 | ||
847 | spin_lock_irqsave(&tp->lock, flags); | |
848 | ||
849 | if (data) | |
850 | tp->cp_cmd |= RxChkSum; | |
851 | else | |
852 | tp->cp_cmd &= ~RxChkSum; | |
853 | ||
854 | RTL_W16(CPlusCmd, tp->cp_cmd); | |
855 | RTL_R16(CPlusCmd); | |
856 | ||
857 | spin_unlock_irqrestore(&tp->lock, flags); | |
858 | ||
859 | return 0; | |
860 | } | |
861 | ||
862 | #ifdef CONFIG_R8169_VLAN | |
863 | ||
864 | static inline u32 rtl8169_tx_vlan_tag(struct rtl8169_private *tp, | |
865 | struct sk_buff *skb) | |
866 | { | |
867 | return (tp->vlgrp && vlan_tx_tag_present(skb)) ? | |
868 | TxVlanTag | swab16(vlan_tx_tag_get(skb)) : 0x00; | |
869 | } | |
870 | ||
871 | static void rtl8169_vlan_rx_register(struct net_device *dev, | |
872 | struct vlan_group *grp) | |
873 | { | |
874 | struct rtl8169_private *tp = netdev_priv(dev); | |
875 | void __iomem *ioaddr = tp->mmio_addr; | |
876 | unsigned long flags; | |
877 | ||
878 | spin_lock_irqsave(&tp->lock, flags); | |
879 | tp->vlgrp = grp; | |
880 | if (tp->vlgrp) | |
881 | tp->cp_cmd |= RxVlan; | |
882 | else | |
883 | tp->cp_cmd &= ~RxVlan; | |
884 | RTL_W16(CPlusCmd, tp->cp_cmd); | |
885 | RTL_R16(CPlusCmd); | |
886 | spin_unlock_irqrestore(&tp->lock, flags); | |
887 | } | |
888 | ||
1da177e4 LT |
889 | static int rtl8169_rx_vlan_skb(struct rtl8169_private *tp, struct RxDesc *desc, |
890 | struct sk_buff *skb) | |
891 | { | |
892 | u32 opts2 = le32_to_cpu(desc->opts2); | |
893 | int ret; | |
894 | ||
895 | if (tp->vlgrp && (opts2 & RxVlanTag)) { | |
896 | rtl8169_rx_hwaccel_skb(skb, tp->vlgrp, | |
897 | swab16(opts2 & 0xffff)); | |
898 | ret = 0; | |
899 | } else | |
900 | ret = -1; | |
901 | desc->opts2 = 0; | |
902 | return ret; | |
903 | } | |
904 | ||
905 | #else /* !CONFIG_R8169_VLAN */ | |
906 | ||
907 | static inline u32 rtl8169_tx_vlan_tag(struct rtl8169_private *tp, | |
908 | struct sk_buff *skb) | |
909 | { | |
910 | return 0; | |
911 | } | |
912 | ||
913 | static int rtl8169_rx_vlan_skb(struct rtl8169_private *tp, struct RxDesc *desc, | |
914 | struct sk_buff *skb) | |
915 | { | |
916 | return -1; | |
917 | } | |
918 | ||
919 | #endif | |
920 | ||
921 | static void rtl8169_gset_tbi(struct net_device *dev, struct ethtool_cmd *cmd) | |
922 | { | |
923 | struct rtl8169_private *tp = netdev_priv(dev); | |
924 | void __iomem *ioaddr = tp->mmio_addr; | |
925 | u32 status; | |
926 | ||
927 | cmd->supported = | |
928 | SUPPORTED_1000baseT_Full | SUPPORTED_Autoneg | SUPPORTED_FIBRE; | |
929 | cmd->port = PORT_FIBRE; | |
930 | cmd->transceiver = XCVR_INTERNAL; | |
931 | ||
932 | status = RTL_R32(TBICSR); | |
933 | cmd->advertising = (status & TBINwEnable) ? ADVERTISED_Autoneg : 0; | |
934 | cmd->autoneg = !!(status & TBINwEnable); | |
935 | ||
936 | cmd->speed = SPEED_1000; | |
937 | cmd->duplex = DUPLEX_FULL; /* Always set */ | |
938 | } | |
939 | ||
940 | static void rtl8169_gset_xmii(struct net_device *dev, struct ethtool_cmd *cmd) | |
941 | { | |
942 | struct rtl8169_private *tp = netdev_priv(dev); | |
943 | void __iomem *ioaddr = tp->mmio_addr; | |
944 | u8 status; | |
945 | ||
946 | cmd->supported = SUPPORTED_10baseT_Half | | |
947 | SUPPORTED_10baseT_Full | | |
948 | SUPPORTED_100baseT_Half | | |
949 | SUPPORTED_100baseT_Full | | |
950 | SUPPORTED_1000baseT_Full | | |
951 | SUPPORTED_Autoneg | | |
5b0384f4 | 952 | SUPPORTED_TP; |
1da177e4 LT |
953 | |
954 | cmd->autoneg = 1; | |
955 | cmd->advertising = ADVERTISED_TP | ADVERTISED_Autoneg; | |
956 | ||
64e4bfb4 | 957 | if (tp->phy_auto_nego_reg & ADVERTISE_10HALF) |
1da177e4 | 958 | cmd->advertising |= ADVERTISED_10baseT_Half; |
64e4bfb4 | 959 | if (tp->phy_auto_nego_reg & ADVERTISE_10FULL) |
1da177e4 | 960 | cmd->advertising |= ADVERTISED_10baseT_Full; |
64e4bfb4 | 961 | if (tp->phy_auto_nego_reg & ADVERTISE_100HALF) |
1da177e4 | 962 | cmd->advertising |= ADVERTISED_100baseT_Half; |
64e4bfb4 | 963 | if (tp->phy_auto_nego_reg & ADVERTISE_100FULL) |
1da177e4 | 964 | cmd->advertising |= ADVERTISED_100baseT_Full; |
64e4bfb4 | 965 | if (tp->phy_1000_ctrl_reg & ADVERTISE_1000FULL) |
1da177e4 LT |
966 | cmd->advertising |= ADVERTISED_1000baseT_Full; |
967 | ||
968 | status = RTL_R8(PHYstatus); | |
969 | ||
970 | if (status & _1000bpsF) | |
971 | cmd->speed = SPEED_1000; | |
972 | else if (status & _100bps) | |
973 | cmd->speed = SPEED_100; | |
974 | else if (status & _10bps) | |
975 | cmd->speed = SPEED_10; | |
976 | ||
623a1593 FR |
977 | if (status & TxFlowCtrl) |
978 | cmd->advertising |= ADVERTISED_Asym_Pause; | |
979 | if (status & RxFlowCtrl) | |
980 | cmd->advertising |= ADVERTISED_Pause; | |
981 | ||
1da177e4 LT |
982 | cmd->duplex = ((status & _1000bpsF) || (status & FullDup)) ? |
983 | DUPLEX_FULL : DUPLEX_HALF; | |
984 | } | |
985 | ||
986 | static int rtl8169_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) | |
987 | { | |
988 | struct rtl8169_private *tp = netdev_priv(dev); | |
989 | unsigned long flags; | |
990 | ||
991 | spin_lock_irqsave(&tp->lock, flags); | |
992 | ||
993 | tp->get_settings(dev, cmd); | |
994 | ||
995 | spin_unlock_irqrestore(&tp->lock, flags); | |
996 | return 0; | |
997 | } | |
998 | ||
999 | static void rtl8169_get_regs(struct net_device *dev, struct ethtool_regs *regs, | |
1000 | void *p) | |
1001 | { | |
5b0384f4 FR |
1002 | struct rtl8169_private *tp = netdev_priv(dev); |
1003 | unsigned long flags; | |
1da177e4 | 1004 | |
5b0384f4 FR |
1005 | if (regs->len > R8169_REGS_SIZE) |
1006 | regs->len = R8169_REGS_SIZE; | |
1da177e4 | 1007 | |
5b0384f4 FR |
1008 | spin_lock_irqsave(&tp->lock, flags); |
1009 | memcpy_fromio(p, tp->mmio_addr, regs->len); | |
1010 | spin_unlock_irqrestore(&tp->lock, flags); | |
1da177e4 LT |
1011 | } |
1012 | ||
b57b7e5a SH |
1013 | static u32 rtl8169_get_msglevel(struct net_device *dev) |
1014 | { | |
1015 | struct rtl8169_private *tp = netdev_priv(dev); | |
1016 | ||
1017 | return tp->msg_enable; | |
1018 | } | |
1019 | ||
1020 | static void rtl8169_set_msglevel(struct net_device *dev, u32 value) | |
1021 | { | |
1022 | struct rtl8169_private *tp = netdev_priv(dev); | |
1023 | ||
1024 | tp->msg_enable = value; | |
1025 | } | |
1026 | ||
d4a3a0fc SH |
1027 | static const char rtl8169_gstrings[][ETH_GSTRING_LEN] = { |
1028 | "tx_packets", | |
1029 | "rx_packets", | |
1030 | "tx_errors", | |
1031 | "rx_errors", | |
1032 | "rx_missed", | |
1033 | "align_errors", | |
1034 | "tx_single_collisions", | |
1035 | "tx_multi_collisions", | |
1036 | "unicast", | |
1037 | "broadcast", | |
1038 | "multicast", | |
1039 | "tx_aborted", | |
1040 | "tx_underrun", | |
1041 | }; | |
1042 | ||
1043 | struct rtl8169_counters { | |
1044 | u64 tx_packets; | |
1045 | u64 rx_packets; | |
1046 | u64 tx_errors; | |
1047 | u32 rx_errors; | |
1048 | u16 rx_missed; | |
1049 | u16 align_errors; | |
1050 | u32 tx_one_collision; | |
1051 | u32 tx_multi_collision; | |
1052 | u64 rx_unicast; | |
1053 | u64 rx_broadcast; | |
1054 | u32 rx_multicast; | |
1055 | u16 tx_aborted; | |
1056 | u16 tx_underun; | |
1057 | }; | |
1058 | ||
1059 | static int rtl8169_get_stats_count(struct net_device *dev) | |
1060 | { | |
1061 | return ARRAY_SIZE(rtl8169_gstrings); | |
1062 | } | |
1063 | ||
1064 | static void rtl8169_get_ethtool_stats(struct net_device *dev, | |
1065 | struct ethtool_stats *stats, u64 *data) | |
1066 | { | |
1067 | struct rtl8169_private *tp = netdev_priv(dev); | |
1068 | void __iomem *ioaddr = tp->mmio_addr; | |
1069 | struct rtl8169_counters *counters; | |
1070 | dma_addr_t paddr; | |
1071 | u32 cmd; | |
1072 | ||
1073 | ASSERT_RTNL(); | |
1074 | ||
1075 | counters = pci_alloc_consistent(tp->pci_dev, sizeof(*counters), &paddr); | |
1076 | if (!counters) | |
1077 | return; | |
1078 | ||
1079 | RTL_W32(CounterAddrHigh, (u64)paddr >> 32); | |
1080 | cmd = (u64)paddr & DMA_32BIT_MASK; | |
1081 | RTL_W32(CounterAddrLow, cmd); | |
1082 | RTL_W32(CounterAddrLow, cmd | CounterDump); | |
1083 | ||
1084 | while (RTL_R32(CounterAddrLow) & CounterDump) { | |
1085 | if (msleep_interruptible(1)) | |
1086 | break; | |
1087 | } | |
1088 | ||
1089 | RTL_W32(CounterAddrLow, 0); | |
1090 | RTL_W32(CounterAddrHigh, 0); | |
1091 | ||
5b0384f4 | 1092 | data[0] = le64_to_cpu(counters->tx_packets); |
d4a3a0fc SH |
1093 | data[1] = le64_to_cpu(counters->rx_packets); |
1094 | data[2] = le64_to_cpu(counters->tx_errors); | |
1095 | data[3] = le32_to_cpu(counters->rx_errors); | |
1096 | data[4] = le16_to_cpu(counters->rx_missed); | |
1097 | data[5] = le16_to_cpu(counters->align_errors); | |
1098 | data[6] = le32_to_cpu(counters->tx_one_collision); | |
1099 | data[7] = le32_to_cpu(counters->tx_multi_collision); | |
1100 | data[8] = le64_to_cpu(counters->rx_unicast); | |
1101 | data[9] = le64_to_cpu(counters->rx_broadcast); | |
1102 | data[10] = le32_to_cpu(counters->rx_multicast); | |
1103 | data[11] = le16_to_cpu(counters->tx_aborted); | |
1104 | data[12] = le16_to_cpu(counters->tx_underun); | |
1105 | ||
1106 | pci_free_consistent(tp->pci_dev, sizeof(*counters), counters, paddr); | |
1107 | } | |
1108 | ||
1109 | static void rtl8169_get_strings(struct net_device *dev, u32 stringset, u8 *data) | |
1110 | { | |
1111 | switch(stringset) { | |
1112 | case ETH_SS_STATS: | |
1113 | memcpy(data, *rtl8169_gstrings, sizeof(rtl8169_gstrings)); | |
1114 | break; | |
1115 | } | |
1116 | } | |
1117 | ||
1118 | ||
7282d491 | 1119 | static const struct ethtool_ops rtl8169_ethtool_ops = { |
1da177e4 LT |
1120 | .get_drvinfo = rtl8169_get_drvinfo, |
1121 | .get_regs_len = rtl8169_get_regs_len, | |
1122 | .get_link = ethtool_op_get_link, | |
1123 | .get_settings = rtl8169_get_settings, | |
1124 | .set_settings = rtl8169_set_settings, | |
b57b7e5a SH |
1125 | .get_msglevel = rtl8169_get_msglevel, |
1126 | .set_msglevel = rtl8169_set_msglevel, | |
1da177e4 LT |
1127 | .get_rx_csum = rtl8169_get_rx_csum, |
1128 | .set_rx_csum = rtl8169_set_rx_csum, | |
1129 | .get_tx_csum = ethtool_op_get_tx_csum, | |
1130 | .set_tx_csum = ethtool_op_set_tx_csum, | |
1131 | .get_sg = ethtool_op_get_sg, | |
1132 | .set_sg = ethtool_op_set_sg, | |
1133 | .get_tso = ethtool_op_get_tso, | |
1134 | .set_tso = ethtool_op_set_tso, | |
1135 | .get_regs = rtl8169_get_regs, | |
61a4dcc2 FR |
1136 | .get_wol = rtl8169_get_wol, |
1137 | .set_wol = rtl8169_set_wol, | |
d4a3a0fc SH |
1138 | .get_strings = rtl8169_get_strings, |
1139 | .get_stats_count = rtl8169_get_stats_count, | |
1140 | .get_ethtool_stats = rtl8169_get_ethtool_stats, | |
6d6525b7 | 1141 | .get_perm_addr = ethtool_op_get_perm_addr, |
1da177e4 LT |
1142 | }; |
1143 | ||
1144 | static void rtl8169_write_gmii_reg_bit(void __iomem *ioaddr, int reg, int bitnum, | |
1145 | int bitval) | |
1146 | { | |
1147 | int val; | |
1148 | ||
1149 | val = mdio_read(ioaddr, reg); | |
1150 | val = (bitval == 1) ? | |
1151 | val | (bitval << bitnum) : val & ~(0x0001 << bitnum); | |
5b0384f4 | 1152 | mdio_write(ioaddr, reg, val & 0xffff); |
1da177e4 LT |
1153 | } |
1154 | ||
1155 | static void rtl8169_get_mac_version(struct rtl8169_private *tp, void __iomem *ioaddr) | |
1156 | { | |
1157 | const struct { | |
1158 | u32 mask; | |
1159 | int mac_version; | |
1160 | } mac_info[] = { | |
bcf0bf90 FR |
1161 | { 0x38800000, RTL_GIGA_MAC_VER_15 }, |
1162 | { 0x38000000, RTL_GIGA_MAC_VER_12 }, | |
1163 | { 0x34000000, RTL_GIGA_MAC_VER_13 }, | |
1164 | { 0x30800000, RTL_GIGA_MAC_VER_14 }, | |
5b0384f4 | 1165 | { 0x30000000, RTL_GIGA_MAC_VER_11 }, |
bcf0bf90 FR |
1166 | { 0x18000000, RTL_GIGA_MAC_VER_05 }, |
1167 | { 0x10000000, RTL_GIGA_MAC_VER_04 }, | |
1168 | { 0x04000000, RTL_GIGA_MAC_VER_03 }, | |
1169 | { 0x00800000, RTL_GIGA_MAC_VER_02 }, | |
1170 | { 0x00000000, RTL_GIGA_MAC_VER_01 } /* Catch-all */ | |
1da177e4 LT |
1171 | }, *p = mac_info; |
1172 | u32 reg; | |
1173 | ||
1174 | reg = RTL_R32(TxConfig) & 0x7c800000; | |
1175 | while ((reg & p->mask) != p->mask) | |
1176 | p++; | |
1177 | tp->mac_version = p->mac_version; | |
1178 | } | |
1179 | ||
1180 | static void rtl8169_print_mac_version(struct rtl8169_private *tp) | |
1181 | { | |
bcf0bf90 | 1182 | dprintk("mac_version = 0x%02x\n", tp->mac_version); |
1da177e4 LT |
1183 | } |
1184 | ||
1185 | static void rtl8169_get_phy_version(struct rtl8169_private *tp, void __iomem *ioaddr) | |
1186 | { | |
1187 | const struct { | |
1188 | u16 mask; | |
1189 | u16 set; | |
1190 | int phy_version; | |
1191 | } phy_info[] = { | |
1192 | { 0x000f, 0x0002, RTL_GIGA_PHY_VER_G }, | |
1193 | { 0x000f, 0x0001, RTL_GIGA_PHY_VER_F }, | |
1194 | { 0x000f, 0x0000, RTL_GIGA_PHY_VER_E }, | |
1195 | { 0x0000, 0x0000, RTL_GIGA_PHY_VER_D } /* Catch-all */ | |
1196 | }, *p = phy_info; | |
1197 | u16 reg; | |
1198 | ||
64e4bfb4 | 1199 | reg = mdio_read(ioaddr, MII_PHYSID2) & 0xffff; |
1da177e4 LT |
1200 | while ((reg & p->mask) != p->set) |
1201 | p++; | |
1202 | tp->phy_version = p->phy_version; | |
1203 | } | |
1204 | ||
1205 | static void rtl8169_print_phy_version(struct rtl8169_private *tp) | |
1206 | { | |
1207 | struct { | |
1208 | int version; | |
1209 | char *msg; | |
1210 | u32 reg; | |
1211 | } phy_print[] = { | |
1212 | { RTL_GIGA_PHY_VER_G, "RTL_GIGA_PHY_VER_G", 0x0002 }, | |
1213 | { RTL_GIGA_PHY_VER_F, "RTL_GIGA_PHY_VER_F", 0x0001 }, | |
1214 | { RTL_GIGA_PHY_VER_E, "RTL_GIGA_PHY_VER_E", 0x0000 }, | |
1215 | { RTL_GIGA_PHY_VER_D, "RTL_GIGA_PHY_VER_D", 0x0000 }, | |
1216 | { 0, NULL, 0x0000 } | |
1217 | }, *p; | |
1218 | ||
1219 | for (p = phy_print; p->msg; p++) { | |
1220 | if (tp->phy_version == p->version) { | |
1221 | dprintk("phy_version == %s (%04x)\n", p->msg, p->reg); | |
1222 | return; | |
1223 | } | |
1224 | } | |
1225 | dprintk("phy_version == Unknown\n"); | |
1226 | } | |
1227 | ||
1228 | static void rtl8169_hw_phy_config(struct net_device *dev) | |
1229 | { | |
1230 | struct rtl8169_private *tp = netdev_priv(dev); | |
1231 | void __iomem *ioaddr = tp->mmio_addr; | |
1232 | struct { | |
1233 | u16 regs[5]; /* Beware of bit-sign propagation */ | |
1234 | } phy_magic[5] = { { | |
1235 | { 0x0000, //w 4 15 12 0 | |
1236 | 0x00a1, //w 3 15 0 00a1 | |
1237 | 0x0008, //w 2 15 0 0008 | |
1238 | 0x1020, //w 1 15 0 1020 | |
1239 | 0x1000 } },{ //w 0 15 0 1000 | |
1240 | { 0x7000, //w 4 15 12 7 | |
1241 | 0xff41, //w 3 15 0 ff41 | |
1242 | 0xde60, //w 2 15 0 de60 | |
1243 | 0x0140, //w 1 15 0 0140 | |
1244 | 0x0077 } },{ //w 0 15 0 0077 | |
1245 | { 0xa000, //w 4 15 12 a | |
1246 | 0xdf01, //w 3 15 0 df01 | |
1247 | 0xdf20, //w 2 15 0 df20 | |
1248 | 0xff95, //w 1 15 0 ff95 | |
1249 | 0xfa00 } },{ //w 0 15 0 fa00 | |
1250 | { 0xb000, //w 4 15 12 b | |
1251 | 0xff41, //w 3 15 0 ff41 | |
1252 | 0xde20, //w 2 15 0 de20 | |
1253 | 0x0140, //w 1 15 0 0140 | |
1254 | 0x00bb } },{ //w 0 15 0 00bb | |
1255 | { 0xf000, //w 4 15 12 f | |
1256 | 0xdf01, //w 3 15 0 df01 | |
1257 | 0xdf20, //w 2 15 0 df20 | |
1258 | 0xff95, //w 1 15 0 ff95 | |
1259 | 0xbf00 } //w 0 15 0 bf00 | |
1260 | } | |
1261 | }, *p = phy_magic; | |
1262 | int i; | |
1263 | ||
1264 | rtl8169_print_mac_version(tp); | |
1265 | rtl8169_print_phy_version(tp); | |
1266 | ||
bcf0bf90 | 1267 | if (tp->mac_version <= RTL_GIGA_MAC_VER_01) |
1da177e4 LT |
1268 | return; |
1269 | if (tp->phy_version >= RTL_GIGA_PHY_VER_H) | |
1270 | return; | |
1271 | ||
1272 | dprintk("MAC version != 0 && PHY version == 0 or 1\n"); | |
1273 | dprintk("Do final_reg2.cfg\n"); | |
1274 | ||
1275 | /* Shazam ! */ | |
1276 | ||
bcf0bf90 | 1277 | if (tp->mac_version == RTL_GIGA_MAC_VER_04) { |
1da177e4 LT |
1278 | mdio_write(ioaddr, 31, 0x0002); |
1279 | mdio_write(ioaddr, 1, 0x90d0); | |
1280 | mdio_write(ioaddr, 31, 0x0000); | |
1281 | return; | |
1282 | } | |
1283 | ||
1284 | /* phy config for RTL8169s mac_version C chip */ | |
1285 | mdio_write(ioaddr, 31, 0x0001); //w 31 2 0 1 | |
1286 | mdio_write(ioaddr, 21, 0x1000); //w 21 15 0 1000 | |
1287 | mdio_write(ioaddr, 24, 0x65c7); //w 24 15 0 65c7 | |
1288 | rtl8169_write_gmii_reg_bit(ioaddr, 4, 11, 0); //w 4 11 11 0 | |
1289 | ||
1290 | for (i = 0; i < ARRAY_SIZE(phy_magic); i++, p++) { | |
1291 | int val, pos = 4; | |
1292 | ||
1293 | val = (mdio_read(ioaddr, pos) & 0x0fff) | (p->regs[0] & 0xffff); | |
1294 | mdio_write(ioaddr, pos, val); | |
1295 | while (--pos >= 0) | |
1296 | mdio_write(ioaddr, pos, p->regs[4 - pos] & 0xffff); | |
1297 | rtl8169_write_gmii_reg_bit(ioaddr, 4, 11, 1); //w 4 11 11 1 | |
1298 | rtl8169_write_gmii_reg_bit(ioaddr, 4, 11, 0); //w 4 11 11 0 | |
1299 | } | |
1300 | mdio_write(ioaddr, 31, 0x0000); //w 31 2 0 0 | |
1301 | } | |
1302 | ||
1303 | static void rtl8169_phy_timer(unsigned long __opaque) | |
1304 | { | |
1305 | struct net_device *dev = (struct net_device *)__opaque; | |
1306 | struct rtl8169_private *tp = netdev_priv(dev); | |
1307 | struct timer_list *timer = &tp->timer; | |
1308 | void __iomem *ioaddr = tp->mmio_addr; | |
1309 | unsigned long timeout = RTL8169_PHY_TIMEOUT; | |
1310 | ||
bcf0bf90 | 1311 | assert(tp->mac_version > RTL_GIGA_MAC_VER_01); |
1da177e4 LT |
1312 | assert(tp->phy_version < RTL_GIGA_PHY_VER_H); |
1313 | ||
64e4bfb4 | 1314 | if (!(tp->phy_1000_ctrl_reg & ADVERTISE_1000FULL)) |
1da177e4 LT |
1315 | return; |
1316 | ||
1317 | spin_lock_irq(&tp->lock); | |
1318 | ||
1319 | if (tp->phy_reset_pending(ioaddr)) { | |
5b0384f4 | 1320 | /* |
1da177e4 LT |
1321 | * A busy loop could burn quite a few cycles on nowadays CPU. |
1322 | * Let's delay the execution of the timer for a few ticks. | |
1323 | */ | |
1324 | timeout = HZ/10; | |
1325 | goto out_mod_timer; | |
1326 | } | |
1327 | ||
1328 | if (tp->link_ok(ioaddr)) | |
1329 | goto out_unlock; | |
1330 | ||
b57b7e5a SH |
1331 | if (netif_msg_link(tp)) |
1332 | printk(KERN_WARNING "%s: PHY reset until link up\n", dev->name); | |
1da177e4 LT |
1333 | |
1334 | tp->phy_reset_enable(ioaddr); | |
1335 | ||
1336 | out_mod_timer: | |
1337 | mod_timer(timer, jiffies + timeout); | |
1338 | out_unlock: | |
1339 | spin_unlock_irq(&tp->lock); | |
1340 | } | |
1341 | ||
1342 | static inline void rtl8169_delete_timer(struct net_device *dev) | |
1343 | { | |
1344 | struct rtl8169_private *tp = netdev_priv(dev); | |
1345 | struct timer_list *timer = &tp->timer; | |
1346 | ||
bcf0bf90 | 1347 | if ((tp->mac_version <= RTL_GIGA_MAC_VER_01) || |
1da177e4 LT |
1348 | (tp->phy_version >= RTL_GIGA_PHY_VER_H)) |
1349 | return; | |
1350 | ||
1351 | del_timer_sync(timer); | |
1352 | } | |
1353 | ||
1354 | static inline void rtl8169_request_timer(struct net_device *dev) | |
1355 | { | |
1356 | struct rtl8169_private *tp = netdev_priv(dev); | |
1357 | struct timer_list *timer = &tp->timer; | |
1358 | ||
bcf0bf90 | 1359 | if ((tp->mac_version <= RTL_GIGA_MAC_VER_01) || |
1da177e4 LT |
1360 | (tp->phy_version >= RTL_GIGA_PHY_VER_H)) |
1361 | return; | |
1362 | ||
2efa53f3 | 1363 | mod_timer(timer, jiffies + RTL8169_PHY_TIMEOUT); |
1da177e4 LT |
1364 | } |
1365 | ||
1366 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
1367 | /* | |
1368 | * Polling 'interrupt' - used by things like netconsole to send skbs | |
1369 | * without having to re-enable interrupts. It's not called while | |
1370 | * the interrupt routine is executing. | |
1371 | */ | |
1372 | static void rtl8169_netpoll(struct net_device *dev) | |
1373 | { | |
1374 | struct rtl8169_private *tp = netdev_priv(dev); | |
1375 | struct pci_dev *pdev = tp->pci_dev; | |
1376 | ||
1377 | disable_irq(pdev->irq); | |
7d12e780 | 1378 | rtl8169_interrupt(pdev->irq, dev); |
1da177e4 LT |
1379 | enable_irq(pdev->irq); |
1380 | } | |
1381 | #endif | |
1382 | ||
1383 | static void rtl8169_release_board(struct pci_dev *pdev, struct net_device *dev, | |
1384 | void __iomem *ioaddr) | |
1385 | { | |
1386 | iounmap(ioaddr); | |
1387 | pci_release_regions(pdev); | |
1388 | pci_disable_device(pdev); | |
1389 | free_netdev(dev); | |
1390 | } | |
1391 | ||
bf793295 FR |
1392 | static void rtl8169_phy_reset(struct net_device *dev, |
1393 | struct rtl8169_private *tp) | |
1394 | { | |
1395 | void __iomem *ioaddr = tp->mmio_addr; | |
1396 | int i; | |
1397 | ||
1398 | tp->phy_reset_enable(ioaddr); | |
1399 | for (i = 0; i < 100; i++) { | |
1400 | if (!tp->phy_reset_pending(ioaddr)) | |
1401 | return; | |
1402 | msleep(1); | |
1403 | } | |
1404 | if (netif_msg_link(tp)) | |
1405 | printk(KERN_ERR "%s: PHY reset failed.\n", dev->name); | |
1406 | } | |
1407 | ||
4ff96fa6 FR |
1408 | static void rtl8169_init_phy(struct net_device *dev, struct rtl8169_private *tp) |
1409 | { | |
1410 | void __iomem *ioaddr = tp->mmio_addr; | |
1411 | static int board_idx = -1; | |
1412 | u8 autoneg, duplex; | |
1413 | u16 speed; | |
1414 | ||
1415 | board_idx++; | |
1416 | ||
1417 | rtl8169_hw_phy_config(dev); | |
1418 | ||
1419 | dprintk("Set MAC Reg C+CR Offset 0x82h = 0x01h\n"); | |
1420 | RTL_W8(0x82, 0x01); | |
1421 | ||
bcf0bf90 | 1422 | if (tp->mac_version < RTL_GIGA_MAC_VER_03) { |
4ff96fa6 FR |
1423 | dprintk("Set PCI Latency=0x40\n"); |
1424 | pci_write_config_byte(tp->pci_dev, PCI_LATENCY_TIMER, 0x40); | |
1425 | } | |
1426 | ||
bcf0bf90 | 1427 | if (tp->mac_version == RTL_GIGA_MAC_VER_02) { |
4ff96fa6 FR |
1428 | dprintk("Set MAC Reg C+CR Offset 0x82h = 0x01h\n"); |
1429 | RTL_W8(0x82, 0x01); | |
1430 | dprintk("Set PHY Reg 0x0bh = 0x00h\n"); | |
1431 | mdio_write(ioaddr, 0x0b, 0x0000); //w 0x0b 15 0 0 | |
1432 | } | |
1433 | ||
1434 | rtl8169_link_option(board_idx, &autoneg, &speed, &duplex); | |
1435 | ||
bf793295 FR |
1436 | rtl8169_phy_reset(dev, tp); |
1437 | ||
4ff96fa6 FR |
1438 | rtl8169_set_speed(dev, autoneg, speed, duplex); |
1439 | ||
1440 | if ((RTL_R8(PHYstatus) & TBI_Enable) && netif_msg_link(tp)) | |
1441 | printk(KERN_INFO PFX "%s: TBI auto-negotiating\n", dev->name); | |
1442 | } | |
1443 | ||
5f787a1a FR |
1444 | static int rtl8169_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) |
1445 | { | |
1446 | struct rtl8169_private *tp = netdev_priv(dev); | |
1447 | struct mii_ioctl_data *data = if_mii(ifr); | |
1448 | ||
1449 | if (!netif_running(dev)) | |
1450 | return -ENODEV; | |
1451 | ||
1452 | switch (cmd) { | |
1453 | case SIOCGMIIPHY: | |
1454 | data->phy_id = 32; /* Internal PHY */ | |
1455 | return 0; | |
1456 | ||
1457 | case SIOCGMIIREG: | |
1458 | data->val_out = mdio_read(tp->mmio_addr, data->reg_num & 0x1f); | |
1459 | return 0; | |
1460 | ||
1461 | case SIOCSMIIREG: | |
1462 | if (!capable(CAP_NET_ADMIN)) | |
1463 | return -EPERM; | |
1464 | mdio_write(tp->mmio_addr, data->reg_num & 0x1f, data->val_in); | |
1465 | return 0; | |
1466 | } | |
1467 | return -EOPNOTSUPP; | |
1468 | } | |
1469 | ||
1da177e4 | 1470 | static int __devinit |
4ff96fa6 | 1471 | rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) |
1da177e4 | 1472 | { |
bcf0bf90 | 1473 | const unsigned int region = rtl_cfg_info[ent->driver_data].region; |
1da177e4 | 1474 | struct rtl8169_private *tp; |
4ff96fa6 FR |
1475 | struct net_device *dev; |
1476 | void __iomem *ioaddr; | |
315917d2 FR |
1477 | unsigned int pm_cap; |
1478 | int i, rc; | |
1da177e4 | 1479 | |
4ff96fa6 FR |
1480 | if (netif_msg_drv(&debug)) { |
1481 | printk(KERN_INFO "%s Gigabit Ethernet driver %s loaded\n", | |
1482 | MODULENAME, RTL8169_VERSION); | |
1483 | } | |
1da177e4 | 1484 | |
1da177e4 | 1485 | dev = alloc_etherdev(sizeof (*tp)); |
4ff96fa6 | 1486 | if (!dev) { |
b57b7e5a | 1487 | if (netif_msg_drv(&debug)) |
9b91cf9d | 1488 | dev_err(&pdev->dev, "unable to alloc new ethernet\n"); |
4ff96fa6 FR |
1489 | rc = -ENOMEM; |
1490 | goto out; | |
1da177e4 LT |
1491 | } |
1492 | ||
1493 | SET_MODULE_OWNER(dev); | |
1494 | SET_NETDEV_DEV(dev, &pdev->dev); | |
1495 | tp = netdev_priv(dev); | |
c4028958 | 1496 | tp->dev = dev; |
b57b7e5a | 1497 | tp->msg_enable = netif_msg_init(debug.msg_enable, R8169_MSG_DEFAULT); |
1da177e4 LT |
1498 | |
1499 | /* enable device (incl. PCI PM wakeup and hotplug setup) */ | |
1500 | rc = pci_enable_device(pdev); | |
b57b7e5a | 1501 | if (rc < 0) { |
2e8a538d | 1502 | if (netif_msg_probe(tp)) |
9b91cf9d | 1503 | dev_err(&pdev->dev, "enable failure\n"); |
4ff96fa6 | 1504 | goto err_out_free_dev_1; |
1da177e4 LT |
1505 | } |
1506 | ||
1507 | rc = pci_set_mwi(pdev); | |
1508 | if (rc < 0) | |
4ff96fa6 | 1509 | goto err_out_disable_2; |
1da177e4 LT |
1510 | |
1511 | /* save power state before pci_enable_device overwrites it */ | |
1512 | pm_cap = pci_find_capability(pdev, PCI_CAP_ID_PM); | |
1513 | if (pm_cap) { | |
4ff96fa6 | 1514 | u16 pwr_command, acpi_idle_state; |
1da177e4 LT |
1515 | |
1516 | pci_read_config_word(pdev, pm_cap + PCI_PM_CTRL, &pwr_command); | |
1517 | acpi_idle_state = pwr_command & PCI_PM_CTRL_STATE_MASK; | |
1518 | } else { | |
4ff96fa6 | 1519 | if (netif_msg_probe(tp)) { |
9b91cf9d | 1520 | dev_err(&pdev->dev, |
4ff96fa6 FR |
1521 | "PowerManagement capability not found.\n"); |
1522 | } | |
1da177e4 LT |
1523 | } |
1524 | ||
1525 | /* make sure PCI base addr 1 is MMIO */ | |
bcf0bf90 | 1526 | if (!(pci_resource_flags(pdev, region) & IORESOURCE_MEM)) { |
4ff96fa6 | 1527 | if (netif_msg_probe(tp)) { |
9b91cf9d | 1528 | dev_err(&pdev->dev, |
bcf0bf90 FR |
1529 | "region #%d not an MMIO resource, aborting\n", |
1530 | region); | |
4ff96fa6 | 1531 | } |
1da177e4 | 1532 | rc = -ENODEV; |
4ff96fa6 | 1533 | goto err_out_mwi_3; |
1da177e4 | 1534 | } |
4ff96fa6 | 1535 | |
1da177e4 | 1536 | /* check for weird/broken PCI region reporting */ |
bcf0bf90 | 1537 | if (pci_resource_len(pdev, region) < R8169_REGS_SIZE) { |
4ff96fa6 | 1538 | if (netif_msg_probe(tp)) { |
9b91cf9d | 1539 | dev_err(&pdev->dev, |
4ff96fa6 FR |
1540 | "Invalid PCI region size(s), aborting\n"); |
1541 | } | |
1da177e4 | 1542 | rc = -ENODEV; |
4ff96fa6 | 1543 | goto err_out_mwi_3; |
1da177e4 LT |
1544 | } |
1545 | ||
1546 | rc = pci_request_regions(pdev, MODULENAME); | |
b57b7e5a | 1547 | if (rc < 0) { |
2e8a538d | 1548 | if (netif_msg_probe(tp)) |
9b91cf9d | 1549 | dev_err(&pdev->dev, "could not request regions.\n"); |
4ff96fa6 | 1550 | goto err_out_mwi_3; |
1da177e4 LT |
1551 | } |
1552 | ||
1553 | tp->cp_cmd = PCIMulRW | RxChkSum; | |
1554 | ||
1555 | if ((sizeof(dma_addr_t) > 4) && | |
1556 | !pci_set_dma_mask(pdev, DMA_64BIT_MASK) && use_dac) { | |
1557 | tp->cp_cmd |= PCIDAC; | |
1558 | dev->features |= NETIF_F_HIGHDMA; | |
1559 | } else { | |
1560 | rc = pci_set_dma_mask(pdev, DMA_32BIT_MASK); | |
1561 | if (rc < 0) { | |
4ff96fa6 | 1562 | if (netif_msg_probe(tp)) { |
9b91cf9d | 1563 | dev_err(&pdev->dev, |
4ff96fa6 FR |
1564 | "DMA configuration failed.\n"); |
1565 | } | |
1566 | goto err_out_free_res_4; | |
1da177e4 LT |
1567 | } |
1568 | } | |
1569 | ||
1570 | pci_set_master(pdev); | |
1571 | ||
1572 | /* ioremap MMIO region */ | |
bcf0bf90 | 1573 | ioaddr = ioremap(pci_resource_start(pdev, region), R8169_REGS_SIZE); |
4ff96fa6 | 1574 | if (!ioaddr) { |
b57b7e5a | 1575 | if (netif_msg_probe(tp)) |
9b91cf9d | 1576 | dev_err(&pdev->dev, "cannot remap MMIO, aborting\n"); |
1da177e4 | 1577 | rc = -EIO; |
4ff96fa6 | 1578 | goto err_out_free_res_4; |
1da177e4 LT |
1579 | } |
1580 | ||
1581 | /* Unneeded ? Don't mess with Mrs. Murphy. */ | |
1582 | rtl8169_irq_mask_and_ack(ioaddr); | |
1583 | ||
1584 | /* Soft reset the chip. */ | |
1585 | RTL_W8(ChipCmd, CmdReset); | |
1586 | ||
1587 | /* Check that the chip has finished the reset. */ | |
b518fa8e | 1588 | for (i = 100; i > 0; i--) { |
1da177e4 LT |
1589 | if ((RTL_R8(ChipCmd) & CmdReset) == 0) |
1590 | break; | |
b518fa8e | 1591 | msleep_interruptible(1); |
1da177e4 LT |
1592 | } |
1593 | ||
1594 | /* Identify chip attached to board */ | |
1595 | rtl8169_get_mac_version(tp, ioaddr); | |
1596 | rtl8169_get_phy_version(tp, ioaddr); | |
1597 | ||
1598 | rtl8169_print_mac_version(tp); | |
1599 | rtl8169_print_phy_version(tp); | |
1600 | ||
1601 | for (i = ARRAY_SIZE(rtl_chip_info) - 1; i >= 0; i--) { | |
1602 | if (tp->mac_version == rtl_chip_info[i].mac_version) | |
1603 | break; | |
1604 | } | |
1605 | if (i < 0) { | |
1606 | /* Unknown chip: assume array element #0, original RTL-8169 */ | |
b57b7e5a | 1607 | if (netif_msg_probe(tp)) { |
2e8a538d | 1608 | dev_printk(KERN_DEBUG, &pdev->dev, |
4ff96fa6 FR |
1609 | "unknown chip version, assuming %s\n", |
1610 | rtl_chip_info[0].name); | |
b57b7e5a | 1611 | } |
1da177e4 LT |
1612 | i++; |
1613 | } | |
1614 | tp->chipset = i; | |
1615 | ||
5d06a99f FR |
1616 | RTL_W8(Cfg9346, Cfg9346_Unlock); |
1617 | RTL_W8(Config1, RTL_R8(Config1) | PMEnable); | |
1618 | RTL_W8(Config5, RTL_R8(Config5) & PMEStatus); | |
1619 | RTL_W8(Cfg9346, Cfg9346_Lock); | |
1620 | ||
1da177e4 LT |
1621 | if (RTL_R8(PHYstatus) & TBI_Enable) { |
1622 | tp->set_speed = rtl8169_set_speed_tbi; | |
1623 | tp->get_settings = rtl8169_gset_tbi; | |
1624 | tp->phy_reset_enable = rtl8169_tbi_reset_enable; | |
1625 | tp->phy_reset_pending = rtl8169_tbi_reset_pending; | |
1626 | tp->link_ok = rtl8169_tbi_link_ok; | |
1627 | ||
64e4bfb4 | 1628 | tp->phy_1000_ctrl_reg = ADVERTISE_1000FULL; /* Implied by TBI */ |
1da177e4 LT |
1629 | } else { |
1630 | tp->set_speed = rtl8169_set_speed_xmii; | |
1631 | tp->get_settings = rtl8169_gset_xmii; | |
1632 | tp->phy_reset_enable = rtl8169_xmii_reset_enable; | |
1633 | tp->phy_reset_pending = rtl8169_xmii_reset_pending; | |
1634 | tp->link_ok = rtl8169_xmii_link_ok; | |
5f787a1a FR |
1635 | |
1636 | dev->do_ioctl = rtl8169_ioctl; | |
1da177e4 LT |
1637 | } |
1638 | ||
1639 | /* Get MAC address. FIXME: read EEPROM */ | |
1640 | for (i = 0; i < MAC_ADDR_LEN; i++) | |
1641 | dev->dev_addr[i] = RTL_R8(MAC0 + i); | |
6d6525b7 | 1642 | memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len); |
1da177e4 LT |
1643 | |
1644 | dev->open = rtl8169_open; | |
1645 | dev->hard_start_xmit = rtl8169_start_xmit; | |
1646 | dev->get_stats = rtl8169_get_stats; | |
1647 | SET_ETHTOOL_OPS(dev, &rtl8169_ethtool_ops); | |
1648 | dev->stop = rtl8169_close; | |
1649 | dev->tx_timeout = rtl8169_tx_timeout; | |
1650 | dev->set_multicast_list = rtl8169_set_rx_mode; | |
1651 | dev->watchdog_timeo = RTL8169_TX_TIMEOUT; | |
1652 | dev->irq = pdev->irq; | |
1653 | dev->base_addr = (unsigned long) ioaddr; | |
1654 | dev->change_mtu = rtl8169_change_mtu; | |
1655 | ||
1656 | #ifdef CONFIG_R8169_NAPI | |
1657 | dev->poll = rtl8169_poll; | |
1658 | dev->weight = R8169_NAPI_WEIGHT; | |
1da177e4 LT |
1659 | #endif |
1660 | ||
1661 | #ifdef CONFIG_R8169_VLAN | |
1662 | dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX; | |
1663 | dev->vlan_rx_register = rtl8169_vlan_rx_register; | |
1da177e4 LT |
1664 | #endif |
1665 | ||
1666 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
1667 | dev->poll_controller = rtl8169_netpoll; | |
1668 | #endif | |
1669 | ||
1670 | tp->intr_mask = 0xffff; | |
1671 | tp->pci_dev = pdev; | |
1672 | tp->mmio_addr = ioaddr; | |
bcf0bf90 | 1673 | tp->align = rtl_cfg_info[ent->driver_data].align; |
1da177e4 | 1674 | |
2efa53f3 FR |
1675 | init_timer(&tp->timer); |
1676 | tp->timer.data = (unsigned long) dev; | |
1677 | tp->timer.function = rtl8169_phy_timer; | |
1678 | ||
1da177e4 LT |
1679 | spin_lock_init(&tp->lock); |
1680 | ||
1681 | rc = register_netdev(dev); | |
4ff96fa6 FR |
1682 | if (rc < 0) |
1683 | goto err_out_unmap_5; | |
1da177e4 LT |
1684 | |
1685 | pci_set_drvdata(pdev, dev); | |
1686 | ||
b57b7e5a SH |
1687 | if (netif_msg_probe(tp)) { |
1688 | printk(KERN_INFO "%s: %s at 0x%lx, " | |
1689 | "%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x, " | |
1690 | "IRQ %d\n", | |
1691 | dev->name, | |
bcf0bf90 | 1692 | rtl_chip_info[tp->chipset].name, |
b57b7e5a SH |
1693 | dev->base_addr, |
1694 | dev->dev_addr[0], dev->dev_addr[1], | |
1695 | dev->dev_addr[2], dev->dev_addr[3], | |
1696 | dev->dev_addr[4], dev->dev_addr[5], dev->irq); | |
1697 | } | |
1da177e4 | 1698 | |
4ff96fa6 | 1699 | rtl8169_init_phy(dev, tp); |
1da177e4 | 1700 | |
4ff96fa6 FR |
1701 | out: |
1702 | return rc; | |
1da177e4 | 1703 | |
4ff96fa6 FR |
1704 | err_out_unmap_5: |
1705 | iounmap(ioaddr); | |
1706 | err_out_free_res_4: | |
1707 | pci_release_regions(pdev); | |
1708 | err_out_mwi_3: | |
1709 | pci_clear_mwi(pdev); | |
1710 | err_out_disable_2: | |
1711 | pci_disable_device(pdev); | |
1712 | err_out_free_dev_1: | |
1713 | free_netdev(dev); | |
1714 | goto out; | |
1da177e4 LT |
1715 | } |
1716 | ||
1717 | static void __devexit | |
1718 | rtl8169_remove_one(struct pci_dev *pdev) | |
1719 | { | |
1720 | struct net_device *dev = pci_get_drvdata(pdev); | |
1721 | struct rtl8169_private *tp = netdev_priv(dev); | |
1722 | ||
1723 | assert(dev != NULL); | |
1724 | assert(tp != NULL); | |
1725 | ||
eb2a021c FR |
1726 | flush_scheduled_work(); |
1727 | ||
1da177e4 LT |
1728 | unregister_netdev(dev); |
1729 | rtl8169_release_board(pdev, dev, tp->mmio_addr); | |
1730 | pci_set_drvdata(pdev, NULL); | |
1731 | } | |
1732 | ||
1da177e4 LT |
1733 | static void rtl8169_set_rxbufsize(struct rtl8169_private *tp, |
1734 | struct net_device *dev) | |
1735 | { | |
1736 | unsigned int mtu = dev->mtu; | |
1737 | ||
1738 | tp->rx_buf_sz = (mtu > RX_BUF_SIZE) ? mtu + ETH_HLEN + 8 : RX_BUF_SIZE; | |
1739 | } | |
1740 | ||
1741 | static int rtl8169_open(struct net_device *dev) | |
1742 | { | |
1743 | struct rtl8169_private *tp = netdev_priv(dev); | |
1744 | struct pci_dev *pdev = tp->pci_dev; | |
99f252b0 | 1745 | int retval = -ENOMEM; |
1da177e4 | 1746 | |
1da177e4 | 1747 | |
99f252b0 | 1748 | rtl8169_set_rxbufsize(tp, dev); |
1da177e4 LT |
1749 | |
1750 | /* | |
1751 | * Rx and Tx desscriptors needs 256 bytes alignment. | |
1752 | * pci_alloc_consistent provides more. | |
1753 | */ | |
1754 | tp->TxDescArray = pci_alloc_consistent(pdev, R8169_TX_RING_BYTES, | |
1755 | &tp->TxPhyAddr); | |
1756 | if (!tp->TxDescArray) | |
99f252b0 | 1757 | goto out; |
1da177e4 LT |
1758 | |
1759 | tp->RxDescArray = pci_alloc_consistent(pdev, R8169_RX_RING_BYTES, | |
1760 | &tp->RxPhyAddr); | |
1761 | if (!tp->RxDescArray) | |
99f252b0 | 1762 | goto err_free_tx_0; |
1da177e4 LT |
1763 | |
1764 | retval = rtl8169_init_ring(dev); | |
1765 | if (retval < 0) | |
99f252b0 | 1766 | goto err_free_rx_1; |
1da177e4 | 1767 | |
c4028958 | 1768 | INIT_DELAYED_WORK(&tp->task, NULL); |
1da177e4 | 1769 | |
99f252b0 FR |
1770 | smp_mb(); |
1771 | ||
1772 | retval = request_irq(dev->irq, rtl8169_interrupt, IRQF_SHARED, | |
1773 | dev->name, dev); | |
1774 | if (retval < 0) | |
1775 | goto err_release_ring_2; | |
1776 | ||
1da177e4 LT |
1777 | rtl8169_hw_start(dev); |
1778 | ||
1779 | rtl8169_request_timer(dev); | |
1780 | ||
1781 | rtl8169_check_link_status(dev, tp, tp->mmio_addr); | |
1782 | out: | |
1783 | return retval; | |
1784 | ||
99f252b0 FR |
1785 | err_release_ring_2: |
1786 | rtl8169_rx_clear(tp); | |
1787 | err_free_rx_1: | |
1da177e4 LT |
1788 | pci_free_consistent(pdev, R8169_RX_RING_BYTES, tp->RxDescArray, |
1789 | tp->RxPhyAddr); | |
99f252b0 | 1790 | err_free_tx_0: |
1da177e4 LT |
1791 | pci_free_consistent(pdev, R8169_TX_RING_BYTES, tp->TxDescArray, |
1792 | tp->TxPhyAddr); | |
1da177e4 LT |
1793 | goto out; |
1794 | } | |
1795 | ||
1796 | static void rtl8169_hw_reset(void __iomem *ioaddr) | |
1797 | { | |
1798 | /* Disable interrupts */ | |
1799 | rtl8169_irq_mask_and_ack(ioaddr); | |
1800 | ||
1801 | /* Reset the chipset */ | |
1802 | RTL_W8(ChipCmd, CmdReset); | |
1803 | ||
1804 | /* PCI commit */ | |
1805 | RTL_R8(ChipCmd); | |
1806 | } | |
1807 | ||
9cb427b6 FR |
1808 | static void rtl8169_set_rx_tx_config_registers(struct rtl8169_private *tp) |
1809 | { | |
1810 | void __iomem *ioaddr = tp->mmio_addr; | |
1811 | u32 cfg = rtl8169_rx_config; | |
1812 | ||
1813 | cfg |= (RTL_R32(RxConfig) & rtl_chip_info[tp->chipset].RxConfigMask); | |
1814 | RTL_W32(RxConfig, cfg); | |
1815 | ||
1816 | /* Set DMA burst size and Interframe Gap Time */ | |
1817 | RTL_W32(TxConfig, (TX_DMA_BURST << TxDMAShift) | | |
1818 | (InterFrameGap << TxInterFrameGapShift)); | |
1819 | } | |
1820 | ||
1821 | static void rtl8169_hw_start(struct net_device *dev) | |
1da177e4 LT |
1822 | { |
1823 | struct rtl8169_private *tp = netdev_priv(dev); | |
1824 | void __iomem *ioaddr = tp->mmio_addr; | |
bcf0bf90 | 1825 | struct pci_dev *pdev = tp->pci_dev; |
9cb427b6 | 1826 | u16 cmd; |
1da177e4 LT |
1827 | u32 i; |
1828 | ||
1829 | /* Soft reset the chip. */ | |
1830 | RTL_W8(ChipCmd, CmdReset); | |
1831 | ||
1832 | /* Check that the chip has finished the reset. */ | |
b518fa8e | 1833 | for (i = 100; i > 0; i--) { |
1da177e4 LT |
1834 | if ((RTL_R8(ChipCmd) & CmdReset) == 0) |
1835 | break; | |
b518fa8e | 1836 | msleep_interruptible(1); |
1da177e4 LT |
1837 | } |
1838 | ||
9cb427b6 FR |
1839 | if (tp->mac_version == RTL_GIGA_MAC_VER_05) { |
1840 | RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) | PCIMulRW); | |
1841 | pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE, 0x08); | |
1842 | } | |
1843 | ||
bcf0bf90 FR |
1844 | if (tp->mac_version == RTL_GIGA_MAC_VER_13) { |
1845 | pci_write_config_word(pdev, 0x68, 0x00); | |
1846 | pci_write_config_word(pdev, 0x69, 0x08); | |
1847 | } | |
1848 | ||
1849 | /* Undocumented stuff. */ | |
1850 | if (tp->mac_version == RTL_GIGA_MAC_VER_05) { | |
bcf0bf90 FR |
1851 | /* Realtek's r1000_n.c driver uses '&& 0x01' here. Well... */ |
1852 | if ((RTL_R8(Config2) & 0x07) & 0x01) | |
1853 | RTL_W32(0x7c, 0x0007ffff); | |
1854 | ||
1855 | RTL_W32(0x7c, 0x0007ff00); | |
1856 | ||
1857 | pci_read_config_word(pdev, PCI_COMMAND, &cmd); | |
1858 | cmd = cmd & 0xef; | |
1859 | pci_write_config_word(pdev, PCI_COMMAND, cmd); | |
1da177e4 LT |
1860 | } |
1861 | ||
1862 | RTL_W8(Cfg9346, Cfg9346_Unlock); | |
9cb427b6 FR |
1863 | if ((tp->mac_version == RTL_GIGA_MAC_VER_01) || |
1864 | (tp->mac_version == RTL_GIGA_MAC_VER_02) || | |
1865 | (tp->mac_version == RTL_GIGA_MAC_VER_03) || | |
1866 | (tp->mac_version == RTL_GIGA_MAC_VER_04)) | |
1867 | RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb); | |
1868 | ||
1da177e4 LT |
1869 | RTL_W8(EarlyTxThres, EarlyTxThld); |
1870 | ||
126fa4b9 FR |
1871 | /* Low hurts. Let's disable the filtering. */ |
1872 | RTL_W16(RxMaxSize, 16383); | |
1da177e4 | 1873 | |
9cb427b6 FR |
1874 | if ((tp->mac_version == RTL_GIGA_MAC_VER_01) || |
1875 | (tp->mac_version == RTL_GIGA_MAC_VER_02) || | |
1876 | (tp->mac_version == RTL_GIGA_MAC_VER_03) || | |
1877 | (tp->mac_version == RTL_GIGA_MAC_VER_04)) | |
9cb427b6 | 1878 | rtl8169_set_rx_tx_config_registers(tp); |
1da177e4 | 1879 | |
9cb427b6 FR |
1880 | cmd = RTL_R16(CPlusCmd); |
1881 | RTL_W16(CPlusCmd, cmd); | |
1da177e4 | 1882 | |
9cb427b6 | 1883 | tp->cp_cmd |= cmd | PCIMulRW; |
1da177e4 | 1884 | |
bcf0bf90 FR |
1885 | if ((tp->mac_version == RTL_GIGA_MAC_VER_02) || |
1886 | (tp->mac_version == RTL_GIGA_MAC_VER_03)) { | |
1da177e4 LT |
1887 | dprintk(KERN_INFO PFX "Set MAC Reg C+CR Offset 0xE0. " |
1888 | "Bit-3 and bit-14 MUST be 1\n"); | |
bcf0bf90 | 1889 | tp->cp_cmd |= (1 << 14); |
1da177e4 LT |
1890 | } |
1891 | ||
bcf0bf90 FR |
1892 | RTL_W16(CPlusCmd, tp->cp_cmd); |
1893 | ||
1da177e4 LT |
1894 | /* |
1895 | * Undocumented corner. Supposedly: | |
1896 | * (TxTimer << 12) | (TxPackets << 8) | (RxTimer << 4) | RxPackets | |
1897 | */ | |
1898 | RTL_W16(IntrMitigate, 0x0000); | |
1899 | ||
b39fe41f FR |
1900 | /* |
1901 | * Magic spell: some iop3xx ARM board needs the TxDescAddrHigh | |
1902 | * register to be written before TxDescAddrLow to work. | |
1903 | * Switching from MMIO to I/O access fixes the issue as well. | |
1904 | */ | |
1da177e4 | 1905 | RTL_W32(TxDescStartAddrHigh, ((u64) tp->TxPhyAddr >> 32)); |
b39fe41f | 1906 | RTL_W32(TxDescStartAddrLow, ((u64) tp->TxPhyAddr & DMA_32BIT_MASK)); |
1da177e4 | 1907 | RTL_W32(RxDescAddrHigh, ((u64) tp->RxPhyAddr >> 32)); |
b39fe41f | 1908 | RTL_W32(RxDescAddrLow, ((u64) tp->RxPhyAddr & DMA_32BIT_MASK)); |
9cb427b6 FR |
1909 | |
1910 | if ((tp->mac_version != RTL_GIGA_MAC_VER_01) && | |
1911 | (tp->mac_version != RTL_GIGA_MAC_VER_02) && | |
1912 | (tp->mac_version != RTL_GIGA_MAC_VER_03) && | |
1913 | (tp->mac_version != RTL_GIGA_MAC_VER_04)) { | |
1914 | RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb); | |
1915 | rtl8169_set_rx_tx_config_registers(tp); | |
1916 | } | |
1917 | ||
1da177e4 | 1918 | RTL_W8(Cfg9346, Cfg9346_Lock); |
b518fa8e FR |
1919 | |
1920 | /* Initially a 10 us delay. Turned it into a PCI commit. - FR */ | |
1921 | RTL_R8(IntrMask); | |
1da177e4 LT |
1922 | |
1923 | RTL_W32(RxMissed, 0); | |
1924 | ||
1925 | rtl8169_set_rx_mode(dev); | |
1926 | ||
1927 | /* no early-rx interrupts */ | |
1928 | RTL_W16(MultiIntr, RTL_R16(MultiIntr) & 0xF000); | |
1929 | ||
1930 | /* Enable all known interrupts by setting the interrupt mask. */ | |
1931 | RTL_W16(IntrMask, rtl8169_intr_mask); | |
1932 | ||
1933 | netif_start_queue(dev); | |
1934 | } | |
1935 | ||
1936 | static int rtl8169_change_mtu(struct net_device *dev, int new_mtu) | |
1937 | { | |
1938 | struct rtl8169_private *tp = netdev_priv(dev); | |
1939 | int ret = 0; | |
1940 | ||
1941 | if (new_mtu < ETH_ZLEN || new_mtu > SafeMtu) | |
1942 | return -EINVAL; | |
1943 | ||
1944 | dev->mtu = new_mtu; | |
1945 | ||
1946 | if (!netif_running(dev)) | |
1947 | goto out; | |
1948 | ||
1949 | rtl8169_down(dev); | |
1950 | ||
1951 | rtl8169_set_rxbufsize(tp, dev); | |
1952 | ||
1953 | ret = rtl8169_init_ring(dev); | |
1954 | if (ret < 0) | |
1955 | goto out; | |
1956 | ||
1957 | netif_poll_enable(dev); | |
1958 | ||
1959 | rtl8169_hw_start(dev); | |
1960 | ||
1961 | rtl8169_request_timer(dev); | |
1962 | ||
1963 | out: | |
1964 | return ret; | |
1965 | } | |
1966 | ||
1967 | static inline void rtl8169_make_unusable_by_asic(struct RxDesc *desc) | |
1968 | { | |
1969 | desc->addr = 0x0badbadbadbadbadull; | |
1970 | desc->opts1 &= ~cpu_to_le32(DescOwn | RsvdMask); | |
1971 | } | |
1972 | ||
1973 | static void rtl8169_free_rx_skb(struct rtl8169_private *tp, | |
1974 | struct sk_buff **sk_buff, struct RxDesc *desc) | |
1975 | { | |
1976 | struct pci_dev *pdev = tp->pci_dev; | |
1977 | ||
1978 | pci_unmap_single(pdev, le64_to_cpu(desc->addr), tp->rx_buf_sz, | |
1979 | PCI_DMA_FROMDEVICE); | |
1980 | dev_kfree_skb(*sk_buff); | |
1981 | *sk_buff = NULL; | |
1982 | rtl8169_make_unusable_by_asic(desc); | |
1983 | } | |
1984 | ||
1985 | static inline void rtl8169_mark_to_asic(struct RxDesc *desc, u32 rx_buf_sz) | |
1986 | { | |
1987 | u32 eor = le32_to_cpu(desc->opts1) & RingEnd; | |
1988 | ||
1989 | desc->opts1 = cpu_to_le32(DescOwn | eor | rx_buf_sz); | |
1990 | } | |
1991 | ||
1992 | static inline void rtl8169_map_to_asic(struct RxDesc *desc, dma_addr_t mapping, | |
1993 | u32 rx_buf_sz) | |
1994 | { | |
1995 | desc->addr = cpu_to_le64(mapping); | |
1996 | wmb(); | |
1997 | rtl8169_mark_to_asic(desc, rx_buf_sz); | |
1998 | } | |
1999 | ||
15d31758 SH |
2000 | static struct sk_buff *rtl8169_alloc_rx_skb(struct pci_dev *pdev, |
2001 | struct net_device *dev, | |
2002 | struct RxDesc *desc, int rx_buf_sz, | |
2003 | unsigned int align) | |
1da177e4 LT |
2004 | { |
2005 | struct sk_buff *skb; | |
2006 | dma_addr_t mapping; | |
1da177e4 | 2007 | |
15d31758 | 2008 | skb = netdev_alloc_skb(dev, rx_buf_sz + align); |
1da177e4 LT |
2009 | if (!skb) |
2010 | goto err_out; | |
2011 | ||
dcb92f88 | 2012 | skb_reserve(skb, (align - 1) & (unsigned long)skb->data); |
1da177e4 | 2013 | |
689be439 | 2014 | mapping = pci_map_single(pdev, skb->data, rx_buf_sz, |
1da177e4 LT |
2015 | PCI_DMA_FROMDEVICE); |
2016 | ||
2017 | rtl8169_map_to_asic(desc, mapping, rx_buf_sz); | |
1da177e4 | 2018 | out: |
15d31758 | 2019 | return skb; |
1da177e4 LT |
2020 | |
2021 | err_out: | |
1da177e4 LT |
2022 | rtl8169_make_unusable_by_asic(desc); |
2023 | goto out; | |
2024 | } | |
2025 | ||
2026 | static void rtl8169_rx_clear(struct rtl8169_private *tp) | |
2027 | { | |
2028 | int i; | |
2029 | ||
2030 | for (i = 0; i < NUM_RX_DESC; i++) { | |
2031 | if (tp->Rx_skbuff[i]) { | |
2032 | rtl8169_free_rx_skb(tp, tp->Rx_skbuff + i, | |
2033 | tp->RxDescArray + i); | |
2034 | } | |
2035 | } | |
2036 | } | |
2037 | ||
2038 | static u32 rtl8169_rx_fill(struct rtl8169_private *tp, struct net_device *dev, | |
2039 | u32 start, u32 end) | |
2040 | { | |
2041 | u32 cur; | |
5b0384f4 | 2042 | |
4ae47c2d | 2043 | for (cur = start; end - cur != 0; cur++) { |
15d31758 SH |
2044 | struct sk_buff *skb; |
2045 | unsigned int i = cur % NUM_RX_DESC; | |
1da177e4 | 2046 | |
4ae47c2d FR |
2047 | WARN_ON((s32)(end - cur) < 0); |
2048 | ||
1da177e4 LT |
2049 | if (tp->Rx_skbuff[i]) |
2050 | continue; | |
bcf0bf90 | 2051 | |
15d31758 SH |
2052 | skb = rtl8169_alloc_rx_skb(tp->pci_dev, dev, |
2053 | tp->RxDescArray + i, | |
2054 | tp->rx_buf_sz, tp->align); | |
2055 | if (!skb) | |
1da177e4 | 2056 | break; |
15d31758 SH |
2057 | |
2058 | tp->Rx_skbuff[i] = skb; | |
1da177e4 LT |
2059 | } |
2060 | return cur - start; | |
2061 | } | |
2062 | ||
2063 | static inline void rtl8169_mark_as_last_descriptor(struct RxDesc *desc) | |
2064 | { | |
2065 | desc->opts1 |= cpu_to_le32(RingEnd); | |
2066 | } | |
2067 | ||
2068 | static void rtl8169_init_ring_indexes(struct rtl8169_private *tp) | |
2069 | { | |
2070 | tp->dirty_tx = tp->dirty_rx = tp->cur_tx = tp->cur_rx = 0; | |
2071 | } | |
2072 | ||
2073 | static int rtl8169_init_ring(struct net_device *dev) | |
2074 | { | |
2075 | struct rtl8169_private *tp = netdev_priv(dev); | |
2076 | ||
2077 | rtl8169_init_ring_indexes(tp); | |
2078 | ||
2079 | memset(tp->tx_skb, 0x0, NUM_TX_DESC * sizeof(struct ring_info)); | |
2080 | memset(tp->Rx_skbuff, 0x0, NUM_RX_DESC * sizeof(struct sk_buff *)); | |
2081 | ||
2082 | if (rtl8169_rx_fill(tp, dev, 0, NUM_RX_DESC) != NUM_RX_DESC) | |
2083 | goto err_out; | |
2084 | ||
2085 | rtl8169_mark_as_last_descriptor(tp->RxDescArray + NUM_RX_DESC - 1); | |
2086 | ||
2087 | return 0; | |
2088 | ||
2089 | err_out: | |
2090 | rtl8169_rx_clear(tp); | |
2091 | return -ENOMEM; | |
2092 | } | |
2093 | ||
2094 | static void rtl8169_unmap_tx_skb(struct pci_dev *pdev, struct ring_info *tx_skb, | |
2095 | struct TxDesc *desc) | |
2096 | { | |
2097 | unsigned int len = tx_skb->len; | |
2098 | ||
2099 | pci_unmap_single(pdev, le64_to_cpu(desc->addr), len, PCI_DMA_TODEVICE); | |
2100 | desc->opts1 = 0x00; | |
2101 | desc->opts2 = 0x00; | |
2102 | desc->addr = 0x00; | |
2103 | tx_skb->len = 0; | |
2104 | } | |
2105 | ||
2106 | static void rtl8169_tx_clear(struct rtl8169_private *tp) | |
2107 | { | |
2108 | unsigned int i; | |
2109 | ||
2110 | for (i = tp->dirty_tx; i < tp->dirty_tx + NUM_TX_DESC; i++) { | |
2111 | unsigned int entry = i % NUM_TX_DESC; | |
2112 | struct ring_info *tx_skb = tp->tx_skb + entry; | |
2113 | unsigned int len = tx_skb->len; | |
2114 | ||
2115 | if (len) { | |
2116 | struct sk_buff *skb = tx_skb->skb; | |
2117 | ||
2118 | rtl8169_unmap_tx_skb(tp->pci_dev, tx_skb, | |
2119 | tp->TxDescArray + entry); | |
2120 | if (skb) { | |
2121 | dev_kfree_skb(skb); | |
2122 | tx_skb->skb = NULL; | |
2123 | } | |
2124 | tp->stats.tx_dropped++; | |
2125 | } | |
2126 | } | |
2127 | tp->cur_tx = tp->dirty_tx = 0; | |
2128 | } | |
2129 | ||
c4028958 | 2130 | static void rtl8169_schedule_work(struct net_device *dev, work_func_t task) |
1da177e4 LT |
2131 | { |
2132 | struct rtl8169_private *tp = netdev_priv(dev); | |
2133 | ||
c4028958 | 2134 | PREPARE_DELAYED_WORK(&tp->task, task); |
1da177e4 LT |
2135 | schedule_delayed_work(&tp->task, 4); |
2136 | } | |
2137 | ||
2138 | static void rtl8169_wait_for_quiescence(struct net_device *dev) | |
2139 | { | |
2140 | struct rtl8169_private *tp = netdev_priv(dev); | |
2141 | void __iomem *ioaddr = tp->mmio_addr; | |
2142 | ||
2143 | synchronize_irq(dev->irq); | |
2144 | ||
2145 | /* Wait for any pending NAPI task to complete */ | |
2146 | netif_poll_disable(dev); | |
2147 | ||
2148 | rtl8169_irq_mask_and_ack(ioaddr); | |
2149 | ||
2150 | netif_poll_enable(dev); | |
2151 | } | |
2152 | ||
c4028958 | 2153 | static void rtl8169_reinit_task(struct work_struct *work) |
1da177e4 | 2154 | { |
c4028958 DH |
2155 | struct rtl8169_private *tp = |
2156 | container_of(work, struct rtl8169_private, task.work); | |
2157 | struct net_device *dev = tp->dev; | |
1da177e4 LT |
2158 | int ret; |
2159 | ||
eb2a021c FR |
2160 | rtnl_lock(); |
2161 | ||
2162 | if (!netif_running(dev)) | |
2163 | goto out_unlock; | |
2164 | ||
2165 | rtl8169_wait_for_quiescence(dev); | |
2166 | rtl8169_close(dev); | |
1da177e4 LT |
2167 | |
2168 | ret = rtl8169_open(dev); | |
2169 | if (unlikely(ret < 0)) { | |
2170 | if (net_ratelimit()) { | |
b57b7e5a SH |
2171 | struct rtl8169_private *tp = netdev_priv(dev); |
2172 | ||
2173 | if (netif_msg_drv(tp)) { | |
2174 | printk(PFX KERN_ERR | |
2175 | "%s: reinit failure (status = %d)." | |
2176 | " Rescheduling.\n", dev->name, ret); | |
2177 | } | |
1da177e4 LT |
2178 | } |
2179 | rtl8169_schedule_work(dev, rtl8169_reinit_task); | |
2180 | } | |
eb2a021c FR |
2181 | |
2182 | out_unlock: | |
2183 | rtnl_unlock(); | |
1da177e4 LT |
2184 | } |
2185 | ||
c4028958 | 2186 | static void rtl8169_reset_task(struct work_struct *work) |
1da177e4 | 2187 | { |
c4028958 DH |
2188 | struct rtl8169_private *tp = |
2189 | container_of(work, struct rtl8169_private, task.work); | |
2190 | struct net_device *dev = tp->dev; | |
1da177e4 | 2191 | |
eb2a021c FR |
2192 | rtnl_lock(); |
2193 | ||
1da177e4 | 2194 | if (!netif_running(dev)) |
eb2a021c | 2195 | goto out_unlock; |
1da177e4 LT |
2196 | |
2197 | rtl8169_wait_for_quiescence(dev); | |
2198 | ||
2199 | rtl8169_rx_interrupt(dev, tp, tp->mmio_addr); | |
2200 | rtl8169_tx_clear(tp); | |
2201 | ||
2202 | if (tp->dirty_rx == tp->cur_rx) { | |
2203 | rtl8169_init_ring_indexes(tp); | |
2204 | rtl8169_hw_start(dev); | |
2205 | netif_wake_queue(dev); | |
2206 | } else { | |
2207 | if (net_ratelimit()) { | |
b57b7e5a SH |
2208 | struct rtl8169_private *tp = netdev_priv(dev); |
2209 | ||
2210 | if (netif_msg_intr(tp)) { | |
2211 | printk(PFX KERN_EMERG | |
2212 | "%s: Rx buffers shortage\n", dev->name); | |
2213 | } | |
1da177e4 LT |
2214 | } |
2215 | rtl8169_schedule_work(dev, rtl8169_reset_task); | |
2216 | } | |
eb2a021c FR |
2217 | |
2218 | out_unlock: | |
2219 | rtnl_unlock(); | |
1da177e4 LT |
2220 | } |
2221 | ||
2222 | static void rtl8169_tx_timeout(struct net_device *dev) | |
2223 | { | |
2224 | struct rtl8169_private *tp = netdev_priv(dev); | |
2225 | ||
2226 | rtl8169_hw_reset(tp->mmio_addr); | |
2227 | ||
2228 | /* Let's wait a bit while any (async) irq lands on */ | |
2229 | rtl8169_schedule_work(dev, rtl8169_reset_task); | |
2230 | } | |
2231 | ||
2232 | static int rtl8169_xmit_frags(struct rtl8169_private *tp, struct sk_buff *skb, | |
2233 | u32 opts1) | |
2234 | { | |
2235 | struct skb_shared_info *info = skb_shinfo(skb); | |
2236 | unsigned int cur_frag, entry; | |
2237 | struct TxDesc *txd; | |
2238 | ||
2239 | entry = tp->cur_tx; | |
2240 | for (cur_frag = 0; cur_frag < info->nr_frags; cur_frag++) { | |
2241 | skb_frag_t *frag = info->frags + cur_frag; | |
2242 | dma_addr_t mapping; | |
2243 | u32 status, len; | |
2244 | void *addr; | |
2245 | ||
2246 | entry = (entry + 1) % NUM_TX_DESC; | |
2247 | ||
2248 | txd = tp->TxDescArray + entry; | |
2249 | len = frag->size; | |
2250 | addr = ((void *) page_address(frag->page)) + frag->page_offset; | |
2251 | mapping = pci_map_single(tp->pci_dev, addr, len, PCI_DMA_TODEVICE); | |
2252 | ||
2253 | /* anti gcc 2.95.3 bugware (sic) */ | |
2254 | status = opts1 | len | (RingEnd * !((entry + 1) % NUM_TX_DESC)); | |
2255 | ||
2256 | txd->opts1 = cpu_to_le32(status); | |
2257 | txd->addr = cpu_to_le64(mapping); | |
2258 | ||
2259 | tp->tx_skb[entry].len = len; | |
2260 | } | |
2261 | ||
2262 | if (cur_frag) { | |
2263 | tp->tx_skb[entry].skb = skb; | |
2264 | txd->opts1 |= cpu_to_le32(LastFrag); | |
2265 | } | |
2266 | ||
2267 | return cur_frag; | |
2268 | } | |
2269 | ||
2270 | static inline u32 rtl8169_tso_csum(struct sk_buff *skb, struct net_device *dev) | |
2271 | { | |
2272 | if (dev->features & NETIF_F_TSO) { | |
7967168c | 2273 | u32 mss = skb_shinfo(skb)->gso_size; |
1da177e4 LT |
2274 | |
2275 | if (mss) | |
2276 | return LargeSend | ((mss & MSSMask) << MSSShift); | |
2277 | } | |
84fa7933 | 2278 | if (skb->ip_summed == CHECKSUM_PARTIAL) { |
eddc9ec5 | 2279 | const struct iphdr *ip = ip_hdr(skb); |
1da177e4 LT |
2280 | |
2281 | if (ip->protocol == IPPROTO_TCP) | |
2282 | return IPCS | TCPCS; | |
2283 | else if (ip->protocol == IPPROTO_UDP) | |
2284 | return IPCS | UDPCS; | |
2285 | WARN_ON(1); /* we need a WARN() */ | |
2286 | } | |
2287 | return 0; | |
2288 | } | |
2289 | ||
2290 | static int rtl8169_start_xmit(struct sk_buff *skb, struct net_device *dev) | |
2291 | { | |
2292 | struct rtl8169_private *tp = netdev_priv(dev); | |
2293 | unsigned int frags, entry = tp->cur_tx % NUM_TX_DESC; | |
2294 | struct TxDesc *txd = tp->TxDescArray + entry; | |
2295 | void __iomem *ioaddr = tp->mmio_addr; | |
2296 | dma_addr_t mapping; | |
2297 | u32 status, len; | |
2298 | u32 opts1; | |
188f4af0 | 2299 | int ret = NETDEV_TX_OK; |
5b0384f4 | 2300 | |
1da177e4 | 2301 | if (unlikely(TX_BUFFS_AVAIL(tp) < skb_shinfo(skb)->nr_frags)) { |
b57b7e5a SH |
2302 | if (netif_msg_drv(tp)) { |
2303 | printk(KERN_ERR | |
2304 | "%s: BUG! Tx Ring full when queue awake!\n", | |
2305 | dev->name); | |
2306 | } | |
1da177e4 LT |
2307 | goto err_stop; |
2308 | } | |
2309 | ||
2310 | if (unlikely(le32_to_cpu(txd->opts1) & DescOwn)) | |
2311 | goto err_stop; | |
2312 | ||
2313 | opts1 = DescOwn | rtl8169_tso_csum(skb, dev); | |
2314 | ||
2315 | frags = rtl8169_xmit_frags(tp, skb, opts1); | |
2316 | if (frags) { | |
2317 | len = skb_headlen(skb); | |
2318 | opts1 |= FirstFrag; | |
2319 | } else { | |
2320 | len = skb->len; | |
2321 | ||
2322 | if (unlikely(len < ETH_ZLEN)) { | |
5b057c6b | 2323 | if (skb_padto(skb, ETH_ZLEN)) |
1da177e4 LT |
2324 | goto err_update_stats; |
2325 | len = ETH_ZLEN; | |
2326 | } | |
2327 | ||
2328 | opts1 |= FirstFrag | LastFrag; | |
2329 | tp->tx_skb[entry].skb = skb; | |
2330 | } | |
2331 | ||
2332 | mapping = pci_map_single(tp->pci_dev, skb->data, len, PCI_DMA_TODEVICE); | |
2333 | ||
2334 | tp->tx_skb[entry].len = len; | |
2335 | txd->addr = cpu_to_le64(mapping); | |
2336 | txd->opts2 = cpu_to_le32(rtl8169_tx_vlan_tag(tp, skb)); | |
2337 | ||
2338 | wmb(); | |
2339 | ||
2340 | /* anti gcc 2.95.3 bugware (sic) */ | |
2341 | status = opts1 | len | (RingEnd * !((entry + 1) % NUM_TX_DESC)); | |
2342 | txd->opts1 = cpu_to_le32(status); | |
2343 | ||
2344 | dev->trans_start = jiffies; | |
2345 | ||
2346 | tp->cur_tx += frags + 1; | |
2347 | ||
2348 | smp_wmb(); | |
2349 | ||
2350 | RTL_W8(TxPoll, 0x40); /* set polling bit */ | |
2351 | ||
2352 | if (TX_BUFFS_AVAIL(tp) < MAX_SKB_FRAGS) { | |
2353 | netif_stop_queue(dev); | |
2354 | smp_rmb(); | |
2355 | if (TX_BUFFS_AVAIL(tp) >= MAX_SKB_FRAGS) | |
2356 | netif_wake_queue(dev); | |
2357 | } | |
2358 | ||
2359 | out: | |
2360 | return ret; | |
2361 | ||
2362 | err_stop: | |
2363 | netif_stop_queue(dev); | |
188f4af0 | 2364 | ret = NETDEV_TX_BUSY; |
1da177e4 LT |
2365 | err_update_stats: |
2366 | tp->stats.tx_dropped++; | |
2367 | goto out; | |
2368 | } | |
2369 | ||
2370 | static void rtl8169_pcierr_interrupt(struct net_device *dev) | |
2371 | { | |
2372 | struct rtl8169_private *tp = netdev_priv(dev); | |
2373 | struct pci_dev *pdev = tp->pci_dev; | |
2374 | void __iomem *ioaddr = tp->mmio_addr; | |
2375 | u16 pci_status, pci_cmd; | |
2376 | ||
2377 | pci_read_config_word(pdev, PCI_COMMAND, &pci_cmd); | |
2378 | pci_read_config_word(pdev, PCI_STATUS, &pci_status); | |
2379 | ||
b57b7e5a SH |
2380 | if (netif_msg_intr(tp)) { |
2381 | printk(KERN_ERR | |
2382 | "%s: PCI error (cmd = 0x%04x, status = 0x%04x).\n", | |
2383 | dev->name, pci_cmd, pci_status); | |
2384 | } | |
1da177e4 LT |
2385 | |
2386 | /* | |
2387 | * The recovery sequence below admits a very elaborated explanation: | |
2388 | * - it seems to work; | |
d03902b8 FR |
2389 | * - I did not see what else could be done; |
2390 | * - it makes iop3xx happy. | |
1da177e4 LT |
2391 | * |
2392 | * Feel free to adjust to your needs. | |
2393 | */ | |
a27993f3 | 2394 | if (pdev->broken_parity_status) |
d03902b8 FR |
2395 | pci_cmd &= ~PCI_COMMAND_PARITY; |
2396 | else | |
2397 | pci_cmd |= PCI_COMMAND_SERR | PCI_COMMAND_PARITY; | |
2398 | ||
2399 | pci_write_config_word(pdev, PCI_COMMAND, pci_cmd); | |
1da177e4 LT |
2400 | |
2401 | pci_write_config_word(pdev, PCI_STATUS, | |
2402 | pci_status & (PCI_STATUS_DETECTED_PARITY | | |
2403 | PCI_STATUS_SIG_SYSTEM_ERROR | PCI_STATUS_REC_MASTER_ABORT | | |
2404 | PCI_STATUS_REC_TARGET_ABORT | PCI_STATUS_SIG_TARGET_ABORT)); | |
2405 | ||
2406 | /* The infamous DAC f*ckup only happens at boot time */ | |
2407 | if ((tp->cp_cmd & PCIDAC) && !tp->dirty_rx && !tp->cur_rx) { | |
b57b7e5a SH |
2408 | if (netif_msg_intr(tp)) |
2409 | printk(KERN_INFO "%s: disabling PCI DAC.\n", dev->name); | |
1da177e4 LT |
2410 | tp->cp_cmd &= ~PCIDAC; |
2411 | RTL_W16(CPlusCmd, tp->cp_cmd); | |
2412 | dev->features &= ~NETIF_F_HIGHDMA; | |
1da177e4 LT |
2413 | } |
2414 | ||
2415 | rtl8169_hw_reset(ioaddr); | |
d03902b8 FR |
2416 | |
2417 | rtl8169_schedule_work(dev, rtl8169_reinit_task); | |
1da177e4 LT |
2418 | } |
2419 | ||
2420 | static void | |
2421 | rtl8169_tx_interrupt(struct net_device *dev, struct rtl8169_private *tp, | |
2422 | void __iomem *ioaddr) | |
2423 | { | |
2424 | unsigned int dirty_tx, tx_left; | |
2425 | ||
2426 | assert(dev != NULL); | |
2427 | assert(tp != NULL); | |
2428 | assert(ioaddr != NULL); | |
2429 | ||
2430 | dirty_tx = tp->dirty_tx; | |
2431 | smp_rmb(); | |
2432 | tx_left = tp->cur_tx - dirty_tx; | |
2433 | ||
2434 | while (tx_left > 0) { | |
2435 | unsigned int entry = dirty_tx % NUM_TX_DESC; | |
2436 | struct ring_info *tx_skb = tp->tx_skb + entry; | |
2437 | u32 len = tx_skb->len; | |
2438 | u32 status; | |
2439 | ||
2440 | rmb(); | |
2441 | status = le32_to_cpu(tp->TxDescArray[entry].opts1); | |
2442 | if (status & DescOwn) | |
2443 | break; | |
2444 | ||
2445 | tp->stats.tx_bytes += len; | |
2446 | tp->stats.tx_packets++; | |
2447 | ||
2448 | rtl8169_unmap_tx_skb(tp->pci_dev, tx_skb, tp->TxDescArray + entry); | |
2449 | ||
2450 | if (status & LastFrag) { | |
2451 | dev_kfree_skb_irq(tx_skb->skb); | |
2452 | tx_skb->skb = NULL; | |
2453 | } | |
2454 | dirty_tx++; | |
2455 | tx_left--; | |
2456 | } | |
2457 | ||
2458 | if (tp->dirty_tx != dirty_tx) { | |
2459 | tp->dirty_tx = dirty_tx; | |
2460 | smp_wmb(); | |
2461 | if (netif_queue_stopped(dev) && | |
2462 | (TX_BUFFS_AVAIL(tp) >= MAX_SKB_FRAGS)) { | |
2463 | netif_wake_queue(dev); | |
2464 | } | |
2465 | } | |
2466 | } | |
2467 | ||
126fa4b9 FR |
2468 | static inline int rtl8169_fragmented_frame(u32 status) |
2469 | { | |
2470 | return (status & (FirstFrag | LastFrag)) != (FirstFrag | LastFrag); | |
2471 | } | |
2472 | ||
1da177e4 LT |
2473 | static inline void rtl8169_rx_csum(struct sk_buff *skb, struct RxDesc *desc) |
2474 | { | |
2475 | u32 opts1 = le32_to_cpu(desc->opts1); | |
2476 | u32 status = opts1 & RxProtoMask; | |
2477 | ||
2478 | if (((status == RxProtoTCP) && !(opts1 & TCPFail)) || | |
2479 | ((status == RxProtoUDP) && !(opts1 & UDPFail)) || | |
2480 | ((status == RxProtoIP) && !(opts1 & IPFail))) | |
2481 | skb->ip_summed = CHECKSUM_UNNECESSARY; | |
2482 | else | |
2483 | skb->ip_summed = CHECKSUM_NONE; | |
2484 | } | |
2485 | ||
2486 | static inline int rtl8169_try_rx_copy(struct sk_buff **sk_buff, int pkt_size, | |
bcf0bf90 FR |
2487 | struct RxDesc *desc, int rx_buf_sz, |
2488 | unsigned int align) | |
1da177e4 LT |
2489 | { |
2490 | int ret = -1; | |
2491 | ||
2492 | if (pkt_size < rx_copybreak) { | |
2493 | struct sk_buff *skb; | |
2494 | ||
bcf0bf90 | 2495 | skb = dev_alloc_skb(pkt_size + align); |
1da177e4 | 2496 | if (skb) { |
dcb92f88 | 2497 | skb_reserve(skb, (align - 1) & (unsigned long)skb->data); |
278667ba | 2498 | skb_copy_from_linear_data(*sk_buff, skb->data, pkt_size); |
1da177e4 LT |
2499 | *sk_buff = skb; |
2500 | rtl8169_mark_to_asic(desc, rx_buf_sz); | |
2501 | ret = 0; | |
2502 | } | |
2503 | } | |
2504 | return ret; | |
2505 | } | |
2506 | ||
2507 | static int | |
2508 | rtl8169_rx_interrupt(struct net_device *dev, struct rtl8169_private *tp, | |
2509 | void __iomem *ioaddr) | |
2510 | { | |
2511 | unsigned int cur_rx, rx_left; | |
2512 | unsigned int delta, count; | |
2513 | ||
2514 | assert(dev != NULL); | |
2515 | assert(tp != NULL); | |
2516 | assert(ioaddr != NULL); | |
2517 | ||
2518 | cur_rx = tp->cur_rx; | |
2519 | rx_left = NUM_RX_DESC + tp->dirty_rx - cur_rx; | |
2520 | rx_left = rtl8169_rx_quota(rx_left, (u32) dev->quota); | |
2521 | ||
4dcb7d33 | 2522 | for (; rx_left > 0; rx_left--, cur_rx++) { |
1da177e4 | 2523 | unsigned int entry = cur_rx % NUM_RX_DESC; |
126fa4b9 | 2524 | struct RxDesc *desc = tp->RxDescArray + entry; |
1da177e4 LT |
2525 | u32 status; |
2526 | ||
2527 | rmb(); | |
126fa4b9 | 2528 | status = le32_to_cpu(desc->opts1); |
1da177e4 LT |
2529 | |
2530 | if (status & DescOwn) | |
2531 | break; | |
4dcb7d33 | 2532 | if (unlikely(status & RxRES)) { |
b57b7e5a SH |
2533 | if (netif_msg_rx_err(tp)) { |
2534 | printk(KERN_INFO | |
2535 | "%s: Rx ERROR. status = %08x\n", | |
2536 | dev->name, status); | |
2537 | } | |
1da177e4 LT |
2538 | tp->stats.rx_errors++; |
2539 | if (status & (RxRWT | RxRUNT)) | |
2540 | tp->stats.rx_length_errors++; | |
2541 | if (status & RxCRC) | |
2542 | tp->stats.rx_crc_errors++; | |
9dccf611 FR |
2543 | if (status & RxFOVF) { |
2544 | rtl8169_schedule_work(dev, rtl8169_reset_task); | |
2545 | tp->stats.rx_fifo_errors++; | |
2546 | } | |
126fa4b9 | 2547 | rtl8169_mark_to_asic(desc, tp->rx_buf_sz); |
1da177e4 | 2548 | } else { |
1da177e4 LT |
2549 | struct sk_buff *skb = tp->Rx_skbuff[entry]; |
2550 | int pkt_size = (status & 0x00001FFF) - 4; | |
2551 | void (*pci_action)(struct pci_dev *, dma_addr_t, | |
2552 | size_t, int) = pci_dma_sync_single_for_device; | |
2553 | ||
126fa4b9 FR |
2554 | /* |
2555 | * The driver does not support incoming fragmented | |
2556 | * frames. They are seen as a symptom of over-mtu | |
2557 | * sized frames. | |
2558 | */ | |
2559 | if (unlikely(rtl8169_fragmented_frame(status))) { | |
2560 | tp->stats.rx_dropped++; | |
2561 | tp->stats.rx_length_errors++; | |
2562 | rtl8169_mark_to_asic(desc, tp->rx_buf_sz); | |
4dcb7d33 | 2563 | continue; |
126fa4b9 FR |
2564 | } |
2565 | ||
1da177e4 | 2566 | rtl8169_rx_csum(skb, desc); |
bcf0bf90 | 2567 | |
1da177e4 LT |
2568 | pci_dma_sync_single_for_cpu(tp->pci_dev, |
2569 | le64_to_cpu(desc->addr), tp->rx_buf_sz, | |
2570 | PCI_DMA_FROMDEVICE); | |
2571 | ||
2572 | if (rtl8169_try_rx_copy(&skb, pkt_size, desc, | |
bcf0bf90 | 2573 | tp->rx_buf_sz, tp->align)) { |
1da177e4 LT |
2574 | pci_action = pci_unmap_single; |
2575 | tp->Rx_skbuff[entry] = NULL; | |
2576 | } | |
2577 | ||
2578 | pci_action(tp->pci_dev, le64_to_cpu(desc->addr), | |
2579 | tp->rx_buf_sz, PCI_DMA_FROMDEVICE); | |
2580 | ||
1da177e4 LT |
2581 | skb_put(skb, pkt_size); |
2582 | skb->protocol = eth_type_trans(skb, dev); | |
2583 | ||
2584 | if (rtl8169_rx_vlan_skb(tp, desc, skb) < 0) | |
2585 | rtl8169_rx_skb(skb); | |
2586 | ||
2587 | dev->last_rx = jiffies; | |
2588 | tp->stats.rx_bytes += pkt_size; | |
2589 | tp->stats.rx_packets++; | |
2590 | } | |
1da177e4 LT |
2591 | } |
2592 | ||
2593 | count = cur_rx - tp->cur_rx; | |
2594 | tp->cur_rx = cur_rx; | |
2595 | ||
2596 | delta = rtl8169_rx_fill(tp, dev, tp->dirty_rx, tp->cur_rx); | |
b57b7e5a | 2597 | if (!delta && count && netif_msg_intr(tp)) |
1da177e4 LT |
2598 | printk(KERN_INFO "%s: no Rx buffer allocated\n", dev->name); |
2599 | tp->dirty_rx += delta; | |
2600 | ||
2601 | /* | |
2602 | * FIXME: until there is periodic timer to try and refill the ring, | |
2603 | * a temporary shortage may definitely kill the Rx process. | |
2604 | * - disable the asic to try and avoid an overflow and kick it again | |
2605 | * after refill ? | |
2606 | * - how do others driver handle this condition (Uh oh...). | |
2607 | */ | |
b57b7e5a | 2608 | if ((tp->dirty_rx + NUM_RX_DESC == tp->cur_rx) && netif_msg_intr(tp)) |
1da177e4 LT |
2609 | printk(KERN_EMERG "%s: Rx buffers exhausted\n", dev->name); |
2610 | ||
2611 | return count; | |
2612 | } | |
2613 | ||
2614 | /* The interrupt handler does all of the Rx thread work and cleans up after the Tx thread. */ | |
2615 | static irqreturn_t | |
7d12e780 | 2616 | rtl8169_interrupt(int irq, void *dev_instance) |
1da177e4 LT |
2617 | { |
2618 | struct net_device *dev = (struct net_device *) dev_instance; | |
2619 | struct rtl8169_private *tp = netdev_priv(dev); | |
2620 | int boguscnt = max_interrupt_work; | |
2621 | void __iomem *ioaddr = tp->mmio_addr; | |
2622 | int status; | |
2623 | int handled = 0; | |
2624 | ||
2625 | do { | |
2626 | status = RTL_R16(IntrStatus); | |
2627 | ||
2628 | /* hotplug/major error/no more work/shared irq */ | |
2629 | if ((status == 0xFFFF) || !status) | |
2630 | break; | |
2631 | ||
2632 | handled = 1; | |
2633 | ||
2634 | if (unlikely(!netif_running(dev))) { | |
2635 | rtl8169_asic_down(ioaddr); | |
2636 | goto out; | |
2637 | } | |
2638 | ||
2639 | status &= tp->intr_mask; | |
2640 | RTL_W16(IntrStatus, | |
2641 | (status & RxFIFOOver) ? (status | RxOverflow) : status); | |
2642 | ||
2643 | if (!(status & rtl8169_intr_mask)) | |
2644 | break; | |
2645 | ||
2646 | if (unlikely(status & SYSErr)) { | |
2647 | rtl8169_pcierr_interrupt(dev); | |
2648 | break; | |
2649 | } | |
2650 | ||
2651 | if (status & LinkChg) | |
2652 | rtl8169_check_link_status(dev, tp, ioaddr); | |
2653 | ||
2654 | #ifdef CONFIG_R8169_NAPI | |
2655 | RTL_W16(IntrMask, rtl8169_intr_mask & ~rtl8169_napi_event); | |
2656 | tp->intr_mask = ~rtl8169_napi_event; | |
2657 | ||
2658 | if (likely(netif_rx_schedule_prep(dev))) | |
2659 | __netif_rx_schedule(dev); | |
b57b7e5a | 2660 | else if (netif_msg_intr(tp)) { |
1da177e4 | 2661 | printk(KERN_INFO "%s: interrupt %04x taken in poll\n", |
5b0384f4 | 2662 | dev->name, status); |
1da177e4 LT |
2663 | } |
2664 | break; | |
2665 | #else | |
2666 | /* Rx interrupt */ | |
2667 | if (status & (RxOK | RxOverflow | RxFIFOOver)) { | |
2668 | rtl8169_rx_interrupt(dev, tp, ioaddr); | |
2669 | } | |
2670 | /* Tx interrupt */ | |
2671 | if (status & (TxOK | TxErr)) | |
2672 | rtl8169_tx_interrupt(dev, tp, ioaddr); | |
2673 | #endif | |
2674 | ||
2675 | boguscnt--; | |
2676 | } while (boguscnt > 0); | |
2677 | ||
2678 | if (boguscnt <= 0) { | |
7c8b2eb4 | 2679 | if (netif_msg_intr(tp) && net_ratelimit() ) { |
b57b7e5a SH |
2680 | printk(KERN_WARNING |
2681 | "%s: Too much work at interrupt!\n", dev->name); | |
2682 | } | |
1da177e4 LT |
2683 | /* Clear all interrupt sources. */ |
2684 | RTL_W16(IntrStatus, 0xffff); | |
2685 | } | |
2686 | out: | |
2687 | return IRQ_RETVAL(handled); | |
2688 | } | |
2689 | ||
2690 | #ifdef CONFIG_R8169_NAPI | |
2691 | static int rtl8169_poll(struct net_device *dev, int *budget) | |
2692 | { | |
2693 | unsigned int work_done, work_to_do = min(*budget, dev->quota); | |
2694 | struct rtl8169_private *tp = netdev_priv(dev); | |
2695 | void __iomem *ioaddr = tp->mmio_addr; | |
2696 | ||
2697 | work_done = rtl8169_rx_interrupt(dev, tp, ioaddr); | |
2698 | rtl8169_tx_interrupt(dev, tp, ioaddr); | |
2699 | ||
2700 | *budget -= work_done; | |
2701 | dev->quota -= work_done; | |
2702 | ||
2703 | if (work_done < work_to_do) { | |
2704 | netif_rx_complete(dev); | |
2705 | tp->intr_mask = 0xffff; | |
2706 | /* | |
2707 | * 20040426: the barrier is not strictly required but the | |
2708 | * behavior of the irq handler could be less predictable | |
2709 | * without it. Btw, the lack of flush for the posted pci | |
2710 | * write is safe - FR | |
2711 | */ | |
2712 | smp_wmb(); | |
2713 | RTL_W16(IntrMask, rtl8169_intr_mask); | |
2714 | } | |
2715 | ||
2716 | return (work_done >= work_to_do); | |
2717 | } | |
2718 | #endif | |
2719 | ||
2720 | static void rtl8169_down(struct net_device *dev) | |
2721 | { | |
2722 | struct rtl8169_private *tp = netdev_priv(dev); | |
2723 | void __iomem *ioaddr = tp->mmio_addr; | |
2724 | unsigned int poll_locked = 0; | |
733b736c | 2725 | unsigned int intrmask; |
1da177e4 LT |
2726 | |
2727 | rtl8169_delete_timer(dev); | |
2728 | ||
2729 | netif_stop_queue(dev); | |
2730 | ||
1da177e4 LT |
2731 | core_down: |
2732 | spin_lock_irq(&tp->lock); | |
2733 | ||
2734 | rtl8169_asic_down(ioaddr); | |
2735 | ||
2736 | /* Update the error counts. */ | |
2737 | tp->stats.rx_missed_errors += RTL_R32(RxMissed); | |
2738 | RTL_W32(RxMissed, 0); | |
2739 | ||
2740 | spin_unlock_irq(&tp->lock); | |
2741 | ||
2742 | synchronize_irq(dev->irq); | |
2743 | ||
2744 | if (!poll_locked) { | |
2745 | netif_poll_disable(dev); | |
2746 | poll_locked++; | |
2747 | } | |
2748 | ||
2749 | /* Give a racing hard_start_xmit a few cycles to complete. */ | |
fbd568a3 | 2750 | synchronize_sched(); /* FIXME: should this be synchronize_irq()? */ |
1da177e4 LT |
2751 | |
2752 | /* | |
2753 | * And now for the 50k$ question: are IRQ disabled or not ? | |
2754 | * | |
2755 | * Two paths lead here: | |
2756 | * 1) dev->close | |
2757 | * -> netif_running() is available to sync the current code and the | |
2758 | * IRQ handler. See rtl8169_interrupt for details. | |
2759 | * 2) dev->change_mtu | |
2760 | * -> rtl8169_poll can not be issued again and re-enable the | |
2761 | * interruptions. Let's simply issue the IRQ down sequence again. | |
733b736c AP |
2762 | * |
2763 | * No loop if hotpluged or major error (0xffff). | |
1da177e4 | 2764 | */ |
733b736c AP |
2765 | intrmask = RTL_R16(IntrMask); |
2766 | if (intrmask && (intrmask != 0xffff)) | |
1da177e4 LT |
2767 | goto core_down; |
2768 | ||
2769 | rtl8169_tx_clear(tp); | |
2770 | ||
2771 | rtl8169_rx_clear(tp); | |
2772 | } | |
2773 | ||
2774 | static int rtl8169_close(struct net_device *dev) | |
2775 | { | |
2776 | struct rtl8169_private *tp = netdev_priv(dev); | |
2777 | struct pci_dev *pdev = tp->pci_dev; | |
2778 | ||
2779 | rtl8169_down(dev); | |
2780 | ||
2781 | free_irq(dev->irq, dev); | |
2782 | ||
2783 | netif_poll_enable(dev); | |
2784 | ||
2785 | pci_free_consistent(pdev, R8169_RX_RING_BYTES, tp->RxDescArray, | |
2786 | tp->RxPhyAddr); | |
2787 | pci_free_consistent(pdev, R8169_TX_RING_BYTES, tp->TxDescArray, | |
2788 | tp->TxPhyAddr); | |
2789 | tp->TxDescArray = NULL; | |
2790 | tp->RxDescArray = NULL; | |
2791 | ||
2792 | return 0; | |
2793 | } | |
2794 | ||
2795 | static void | |
2796 | rtl8169_set_rx_mode(struct net_device *dev) | |
2797 | { | |
2798 | struct rtl8169_private *tp = netdev_priv(dev); | |
2799 | void __iomem *ioaddr = tp->mmio_addr; | |
2800 | unsigned long flags; | |
2801 | u32 mc_filter[2]; /* Multicast hash filter */ | |
2802 | int i, rx_mode; | |
2803 | u32 tmp = 0; | |
2804 | ||
2805 | if (dev->flags & IFF_PROMISC) { | |
2806 | /* Unconditionally log net taps. */ | |
b57b7e5a SH |
2807 | if (netif_msg_link(tp)) { |
2808 | printk(KERN_NOTICE "%s: Promiscuous mode enabled.\n", | |
2809 | dev->name); | |
2810 | } | |
1da177e4 LT |
2811 | rx_mode = |
2812 | AcceptBroadcast | AcceptMulticast | AcceptMyPhys | | |
2813 | AcceptAllPhys; | |
2814 | mc_filter[1] = mc_filter[0] = 0xffffffff; | |
2815 | } else if ((dev->mc_count > multicast_filter_limit) | |
2816 | || (dev->flags & IFF_ALLMULTI)) { | |
2817 | /* Too many to filter perfectly -- accept all multicasts. */ | |
2818 | rx_mode = AcceptBroadcast | AcceptMulticast | AcceptMyPhys; | |
2819 | mc_filter[1] = mc_filter[0] = 0xffffffff; | |
2820 | } else { | |
2821 | struct dev_mc_list *mclist; | |
2822 | rx_mode = AcceptBroadcast | AcceptMyPhys; | |
2823 | mc_filter[1] = mc_filter[0] = 0; | |
2824 | for (i = 0, mclist = dev->mc_list; mclist && i < dev->mc_count; | |
2825 | i++, mclist = mclist->next) { | |
2826 | int bit_nr = ether_crc(ETH_ALEN, mclist->dmi_addr) >> 26; | |
2827 | mc_filter[bit_nr >> 5] |= 1 << (bit_nr & 31); | |
2828 | rx_mode |= AcceptMulticast; | |
2829 | } | |
2830 | } | |
2831 | ||
2832 | spin_lock_irqsave(&tp->lock, flags); | |
2833 | ||
2834 | tmp = rtl8169_rx_config | rx_mode | | |
2835 | (RTL_R32(RxConfig) & rtl_chip_info[tp->chipset].RxConfigMask); | |
2836 | ||
bcf0bf90 FR |
2837 | if ((tp->mac_version == RTL_GIGA_MAC_VER_11) || |
2838 | (tp->mac_version == RTL_GIGA_MAC_VER_12) || | |
2839 | (tp->mac_version == RTL_GIGA_MAC_VER_13) || | |
2840 | (tp->mac_version == RTL_GIGA_MAC_VER_14) || | |
2841 | (tp->mac_version == RTL_GIGA_MAC_VER_15)) { | |
2842 | mc_filter[0] = 0xffffffff; | |
2843 | mc_filter[1] = 0xffffffff; | |
2844 | } | |
2845 | ||
1da177e4 LT |
2846 | RTL_W32(RxConfig, tmp); |
2847 | RTL_W32(MAR0 + 0, mc_filter[0]); | |
2848 | RTL_W32(MAR0 + 4, mc_filter[1]); | |
2849 | ||
2850 | spin_unlock_irqrestore(&tp->lock, flags); | |
2851 | } | |
2852 | ||
2853 | /** | |
2854 | * rtl8169_get_stats - Get rtl8169 read/write statistics | |
2855 | * @dev: The Ethernet Device to get statistics for | |
2856 | * | |
2857 | * Get TX/RX statistics for rtl8169 | |
2858 | */ | |
2859 | static struct net_device_stats *rtl8169_get_stats(struct net_device *dev) | |
2860 | { | |
2861 | struct rtl8169_private *tp = netdev_priv(dev); | |
2862 | void __iomem *ioaddr = tp->mmio_addr; | |
2863 | unsigned long flags; | |
2864 | ||
2865 | if (netif_running(dev)) { | |
2866 | spin_lock_irqsave(&tp->lock, flags); | |
2867 | tp->stats.rx_missed_errors += RTL_R32(RxMissed); | |
2868 | RTL_W32(RxMissed, 0); | |
2869 | spin_unlock_irqrestore(&tp->lock, flags); | |
2870 | } | |
5b0384f4 | 2871 | |
1da177e4 LT |
2872 | return &tp->stats; |
2873 | } | |
2874 | ||
5d06a99f FR |
2875 | #ifdef CONFIG_PM |
2876 | ||
2877 | static int rtl8169_suspend(struct pci_dev *pdev, pm_message_t state) | |
2878 | { | |
2879 | struct net_device *dev = pci_get_drvdata(pdev); | |
2880 | struct rtl8169_private *tp = netdev_priv(dev); | |
2881 | void __iomem *ioaddr = tp->mmio_addr; | |
2882 | ||
2883 | if (!netif_running(dev)) | |
1371fa6d | 2884 | goto out_pci_suspend; |
5d06a99f FR |
2885 | |
2886 | netif_device_detach(dev); | |
2887 | netif_stop_queue(dev); | |
2888 | ||
2889 | spin_lock_irq(&tp->lock); | |
2890 | ||
2891 | rtl8169_asic_down(ioaddr); | |
2892 | ||
2893 | tp->stats.rx_missed_errors += RTL_R32(RxMissed); | |
2894 | RTL_W32(RxMissed, 0); | |
2895 | ||
2896 | spin_unlock_irq(&tp->lock); | |
2897 | ||
1371fa6d | 2898 | out_pci_suspend: |
5d06a99f | 2899 | pci_save_state(pdev); |
61a4dcc2 | 2900 | pci_enable_wake(pdev, pci_choose_state(pdev, state), tp->wol_enabled); |
5d06a99f | 2901 | pci_set_power_state(pdev, pci_choose_state(pdev, state)); |
1371fa6d | 2902 | |
5d06a99f FR |
2903 | return 0; |
2904 | } | |
2905 | ||
2906 | static int rtl8169_resume(struct pci_dev *pdev) | |
2907 | { | |
2908 | struct net_device *dev = pci_get_drvdata(pdev); | |
2909 | ||
1371fa6d FR |
2910 | pci_set_power_state(pdev, PCI_D0); |
2911 | pci_restore_state(pdev); | |
2912 | pci_enable_wake(pdev, PCI_D0, 0); | |
2913 | ||
5d06a99f FR |
2914 | if (!netif_running(dev)) |
2915 | goto out; | |
2916 | ||
2917 | netif_device_attach(dev); | |
2918 | ||
5d06a99f FR |
2919 | rtl8169_schedule_work(dev, rtl8169_reset_task); |
2920 | out: | |
2921 | return 0; | |
2922 | } | |
2923 | ||
2924 | #endif /* CONFIG_PM */ | |
2925 | ||
1da177e4 LT |
2926 | static struct pci_driver rtl8169_pci_driver = { |
2927 | .name = MODULENAME, | |
2928 | .id_table = rtl8169_pci_tbl, | |
2929 | .probe = rtl8169_init_one, | |
2930 | .remove = __devexit_p(rtl8169_remove_one), | |
2931 | #ifdef CONFIG_PM | |
2932 | .suspend = rtl8169_suspend, | |
2933 | .resume = rtl8169_resume, | |
2934 | #endif | |
2935 | }; | |
2936 | ||
2937 | static int __init | |
2938 | rtl8169_init_module(void) | |
2939 | { | |
29917620 | 2940 | return pci_register_driver(&rtl8169_pci_driver); |
1da177e4 LT |
2941 | } |
2942 | ||
2943 | static void __exit | |
2944 | rtl8169_cleanup_module(void) | |
2945 | { | |
2946 | pci_unregister_driver(&rtl8169_pci_driver); | |
2947 | } | |
2948 | ||
2949 | module_init(rtl8169_init_module); | |
2950 | module_exit(rtl8169_cleanup_module); |