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1da177e4 LT |
1 | /* |
2 | ||
3 | 8139too.c: A RealTek RTL-8139 Fast Ethernet driver for Linux. | |
4 | ||
5 | Maintained by Jeff Garzik <jgarzik@pobox.com> | |
6 | Copyright 2000-2002 Jeff Garzik | |
7 | ||
8 | Much code comes from Donald Becker's rtl8139.c driver, | |
9 | versions 1.13 and older. This driver was originally based | |
10 | on rtl8139.c version 1.07. Header of rtl8139.c version 1.13: | |
11 | ||
12 | -----<snip>----- | |
13 | ||
14 | Written 1997-2001 by Donald Becker. | |
15 | This software may be used and distributed according to the | |
16 | terms of the GNU General Public License (GPL), incorporated | |
17 | herein by reference. Drivers based on or derived from this | |
18 | code fall under the GPL and must retain the authorship, | |
19 | copyright and license notice. This file is not a complete | |
20 | program and may only be used when the entire operating | |
21 | system is licensed under the GPL. | |
22 | ||
23 | This driver is for boards based on the RTL8129 and RTL8139 | |
24 | PCI ethernet chips. | |
25 | ||
26 | The author may be reached as becker@scyld.com, or C/O Scyld | |
27 | Computing Corporation 410 Severn Ave., Suite 210 Annapolis | |
28 | MD 21403 | |
29 | ||
30 | Support and updates available at | |
31 | http://www.scyld.com/network/rtl8139.html | |
32 | ||
33 | Twister-tuning table provided by Kinston | |
34 | <shangh@realtek.com.tw>. | |
35 | ||
36 | -----<snip>----- | |
37 | ||
38 | This software may be used and distributed according to the terms | |
39 | of the GNU General Public License, incorporated herein by reference. | |
40 | ||
41 | Contributors: | |
42 | ||
43 | Donald Becker - he wrote the original driver, kudos to him! | |
44 | (but please don't e-mail him for support, this isn't his driver) | |
45 | ||
46 | Tigran Aivazian - bug fixes, skbuff free cleanup | |
47 | ||
48 | Martin Mares - suggestions for PCI cleanup | |
49 | ||
50 | David S. Miller - PCI DMA and softnet updates | |
51 | ||
52 | Ernst Gill - fixes ported from BSD driver | |
53 | ||
54 | Daniel Kobras - identified specific locations of | |
55 | posted MMIO write bugginess | |
56 | ||
57 | Gerard Sharp - bug fix, testing and feedback | |
58 | ||
59 | David Ford - Rx ring wrap fix | |
60 | ||
61 | Dan DeMaggio - swapped RTL8139 cards with me, and allowed me | |
62 | to find and fix a crucial bug on older chipsets. | |
63 | ||
64 | Donald Becker/Chris Butterworth/Marcus Westergren - | |
65 | Noticed various Rx packet size-related buglets. | |
66 | ||
67 | Santiago Garcia Mantinan - testing and feedback | |
68 | ||
69 | Jens David - 2.2.x kernel backports | |
70 | ||
71 | Martin Dennett - incredibly helpful insight on undocumented | |
72 | features of the 8139 chips | |
73 | ||
74 | Jean-Jacques Michel - bug fix | |
75 | ||
96de0e25 | 76 | Tobias Ringström - Rx interrupt status checking suggestion |
1da177e4 LT |
77 | |
78 | Andrew Morton - Clear blocked signals, avoid | |
79 | buffer overrun setting current->comm. | |
80 | ||
81 | Kalle Olavi Niemitalo - Wake-on-LAN ioctls | |
82 | ||
83 | Robert Kuebel - Save kernel thread from dying on any signal. | |
84 | ||
85 | Submitting bug reports: | |
86 | ||
87 | "rtl8139-diag -mmmaaavvveefN" output | |
88 | enable RTL8139_DEBUG below, and look at 'dmesg' or kernel log | |
89 | ||
90 | */ | |
91 | ||
92 | #define DRV_NAME "8139too" | |
d5b20697 | 93 | #define DRV_VERSION "0.9.28" |
1da177e4 LT |
94 | |
95 | ||
1da177e4 LT |
96 | #include <linux/module.h> |
97 | #include <linux/kernel.h> | |
98 | #include <linux/compiler.h> | |
99 | #include <linux/pci.h> | |
100 | #include <linux/init.h> | |
101 | #include <linux/ioport.h> | |
102 | #include <linux/netdevice.h> | |
103 | #include <linux/etherdevice.h> | |
104 | #include <linux/rtnetlink.h> | |
105 | #include <linux/delay.h> | |
106 | #include <linux/ethtool.h> | |
107 | #include <linux/mii.h> | |
108 | #include <linux/completion.h> | |
109 | #include <linux/crc32.h> | |
a9879c4f MN |
110 | #include <linux/io.h> |
111 | #include <linux/uaccess.h> | |
1da177e4 LT |
112 | #include <asm/irq.h> |
113 | ||
114 | #define RTL8139_DRIVER_NAME DRV_NAME " Fast Ethernet driver " DRV_VERSION | |
115 | #define PFX DRV_NAME ": " | |
116 | ||
117 | /* Default Message level */ | |
118 | #define RTL8139_DEF_MSG_ENABLE (NETIF_MSG_DRV | \ | |
119 | NETIF_MSG_PROBE | \ | |
120 | NETIF_MSG_LINK) | |
121 | ||
122 | ||
123 | /* enable PIO instead of MMIO, if CONFIG_8139TOO_PIO is selected */ | |
124 | #ifdef CONFIG_8139TOO_PIO | |
125 | #define USE_IO_OPS 1 | |
126 | #endif | |
127 | ||
44456d37 OH |
128 | /* define to 1, 2 or 3 to enable copious debugging info */ |
129 | #define RTL8139_DEBUG 0 | |
1da177e4 LT |
130 | |
131 | /* define to 1 to disable lightweight runtime debugging checks */ | |
132 | #undef RTL8139_NDEBUG | |
133 | ||
134 | ||
44456d37 | 135 | #if RTL8139_DEBUG |
1da177e4 | 136 | /* note: prints function name for you */ |
a9879c4f | 137 | # define DPRINTK(fmt, args...) printk(KERN_DEBUG "%s: " fmt, __func__ , ## args) |
1da177e4 LT |
138 | #else |
139 | # define DPRINTK(fmt, args...) | |
140 | #endif | |
141 | ||
142 | #ifdef RTL8139_NDEBUG | |
143 | # define assert(expr) do {} while (0) | |
144 | #else | |
145 | # define assert(expr) \ | |
146 | if(unlikely(!(expr))) { \ | |
147 | printk(KERN_ERR "Assertion failed! %s,%s,%s,line=%d\n", \ | |
a9879c4f | 148 | #expr, __FILE__, __func__, __LINE__); \ |
1da177e4 LT |
149 | } |
150 | #endif | |
151 | ||
152 | ||
153 | /* A few user-configurable values. */ | |
154 | /* media options */ | |
155 | #define MAX_UNITS 8 | |
156 | static int media[MAX_UNITS] = {-1, -1, -1, -1, -1, -1, -1, -1}; | |
157 | static int full_duplex[MAX_UNITS] = {-1, -1, -1, -1, -1, -1, -1, -1}; | |
158 | ||
159 | /* Maximum number of multicast addresses to filter (vs. Rx-all-multicast). | |
160 | The RTL chips use a 64 element hash table based on the Ethernet CRC. */ | |
161 | static int multicast_filter_limit = 32; | |
162 | ||
163 | /* bitmapped message enable number */ | |
164 | static int debug = -1; | |
165 | ||
166 | /* | |
f3b197ac | 167 | * Receive ring size |
1da177e4 LT |
168 | * Warning: 64K ring has hardware issues and may lock up. |
169 | */ | |
170 | #if defined(CONFIG_SH_DREAMCAST) | |
2192f395 | 171 | #define RX_BUF_IDX 0 /* 8K ring */ |
1da177e4 LT |
172 | #else |
173 | #define RX_BUF_IDX 2 /* 32K ring */ | |
174 | #endif | |
175 | #define RX_BUF_LEN (8192 << RX_BUF_IDX) | |
176 | #define RX_BUF_PAD 16 | |
177 | #define RX_BUF_WRAP_PAD 2048 /* spare padding to handle lack of packet wrap */ | |
178 | ||
179 | #if RX_BUF_LEN == 65536 | |
180 | #define RX_BUF_TOT_LEN RX_BUF_LEN | |
181 | #else | |
182 | #define RX_BUF_TOT_LEN (RX_BUF_LEN + RX_BUF_PAD + RX_BUF_WRAP_PAD) | |
183 | #endif | |
184 | ||
185 | /* Number of Tx descriptor registers. */ | |
186 | #define NUM_TX_DESC 4 | |
187 | ||
188 | /* max supported ethernet frame size -- must be at least (dev->mtu+14+4).*/ | |
189 | #define MAX_ETH_FRAME_SIZE 1536 | |
190 | ||
191 | /* Size of the Tx bounce buffers -- must be at least (dev->mtu+14+4). */ | |
192 | #define TX_BUF_SIZE MAX_ETH_FRAME_SIZE | |
193 | #define TX_BUF_TOT_LEN (TX_BUF_SIZE * NUM_TX_DESC) | |
194 | ||
195 | /* PCI Tuning Parameters | |
196 | Threshold is bytes transferred to chip before transmission starts. */ | |
197 | #define TX_FIFO_THRESH 256 /* In bytes, rounded down to 32 byte units. */ | |
198 | ||
199 | /* The following settings are log_2(bytes)-4: 0 == 16 bytes .. 6==1024, 7==end of packet. */ | |
200 | #define RX_FIFO_THRESH 7 /* Rx buffer level before first PCI xfer. */ | |
201 | #define RX_DMA_BURST 7 /* Maximum PCI burst, '6' is 1024 */ | |
202 | #define TX_DMA_BURST 6 /* Maximum PCI burst, '6' is 1024 */ | |
203 | #define TX_RETRY 8 /* 0-15. retries = 16 + (TX_RETRY * 16) */ | |
204 | ||
205 | /* Operational parameters that usually are not changed. */ | |
206 | /* Time in jiffies before concluding the transmitter is hung. */ | |
207 | #define TX_TIMEOUT (6*HZ) | |
208 | ||
209 | ||
210 | enum { | |
211 | HAS_MII_XCVR = 0x010000, | |
212 | HAS_CHIP_XCVR = 0x020000, | |
213 | HAS_LNK_CHNG = 0x040000, | |
214 | }; | |
215 | ||
216 | #define RTL_NUM_STATS 4 /* number of ETHTOOL_GSTATS u64's */ | |
217 | #define RTL_REGS_VER 1 /* version of reg. data in ETHTOOL_GREGS */ | |
218 | #define RTL_MIN_IO_SIZE 0x80 | |
219 | #define RTL8139B_IO_SIZE 256 | |
220 | ||
221 | #define RTL8129_CAPS HAS_MII_XCVR | |
a9879c4f | 222 | #define RTL8139_CAPS (HAS_CHIP_XCVR|HAS_LNK_CHNG) |
1da177e4 LT |
223 | |
224 | typedef enum { | |
225 | RTL8139 = 0, | |
226 | RTL8129, | |
227 | } board_t; | |
228 | ||
229 | ||
230 | /* indexed by board_t, above */ | |
f71e1309 | 231 | static const struct { |
1da177e4 LT |
232 | const char *name; |
233 | u32 hw_flags; | |
234 | } board_info[] __devinitdata = { | |
235 | { "RealTek RTL8139", RTL8139_CAPS }, | |
236 | { "RealTek RTL8129", RTL8129_CAPS }, | |
237 | }; | |
238 | ||
239 | ||
240 | static struct pci_device_id rtl8139_pci_tbl[] = { | |
241 | {0x10ec, 0x8139, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, | |
242 | {0x10ec, 0x8138, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, | |
243 | {0x1113, 0x1211, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, | |
244 | {0x1500, 0x1360, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, | |
245 | {0x4033, 0x1360, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, | |
246 | {0x1186, 0x1300, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, | |
247 | {0x1186, 0x1340, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, | |
248 | {0x13d1, 0xab06, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, | |
249 | {0x1259, 0xa117, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, | |
250 | {0x1259, 0xa11e, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, | |
251 | {0x14ea, 0xab06, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, | |
252 | {0x14ea, 0xab07, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, | |
253 | {0x11db, 0x1234, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, | |
254 | {0x1432, 0x9130, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, | |
255 | {0x02ac, 0x1012, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, | |
256 | {0x018a, 0x0106, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, | |
257 | {0x126c, 0x1211, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, | |
258 | {0x1743, 0x8139, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, | |
f3b197ac | 259 | {0x021b, 0x8139, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
1da177e4 LT |
260 | |
261 | #ifdef CONFIG_SH_SECUREEDGE5410 | |
262 | /* Bogus 8139 silicon reports 8129 without external PROM :-( */ | |
263 | {0x10ec, 0x8129, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, | |
264 | #endif | |
265 | #ifdef CONFIG_8139TOO_8129 | |
266 | {0x10ec, 0x8129, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8129 }, | |
267 | #endif | |
268 | ||
269 | /* some crazy cards report invalid vendor ids like | |
270 | * 0x0001 here. The other ids are valid and constant, | |
271 | * so we simply don't match on the main vendor id. | |
272 | */ | |
273 | {PCI_ANY_ID, 0x8139, 0x10ec, 0x8139, 0, 0, RTL8139 }, | |
274 | {PCI_ANY_ID, 0x8139, 0x1186, 0x1300, 0, 0, RTL8139 }, | |
275 | {PCI_ANY_ID, 0x8139, 0x13d1, 0xab06, 0, 0, RTL8139 }, | |
276 | ||
277 | {0,} | |
278 | }; | |
279 | MODULE_DEVICE_TABLE (pci, rtl8139_pci_tbl); | |
280 | ||
281 | static struct { | |
282 | const char str[ETH_GSTRING_LEN]; | |
283 | } ethtool_stats_keys[] = { | |
284 | { "early_rx" }, | |
285 | { "tx_buf_mapped" }, | |
286 | { "tx_timeouts" }, | |
287 | { "rx_lost_in_ring" }, | |
288 | }; | |
289 | ||
290 | /* The rest of these values should never change. */ | |
291 | ||
292 | /* Symbolic offsets to registers. */ | |
293 | enum RTL8139_registers { | |
28006c65 JG |
294 | MAC0 = 0, /* Ethernet hardware address. */ |
295 | MAR0 = 8, /* Multicast filter. */ | |
296 | TxStatus0 = 0x10, /* Transmit status (Four 32bit registers). */ | |
297 | TxAddr0 = 0x20, /* Tx descriptors (also four 32bit). */ | |
298 | RxBuf = 0x30, | |
299 | ChipCmd = 0x37, | |
300 | RxBufPtr = 0x38, | |
301 | RxBufAddr = 0x3A, | |
302 | IntrMask = 0x3C, | |
303 | IntrStatus = 0x3E, | |
304 | TxConfig = 0x40, | |
305 | RxConfig = 0x44, | |
306 | Timer = 0x48, /* A general-purpose counter. */ | |
307 | RxMissed = 0x4C, /* 24 bits valid, write clears. */ | |
308 | Cfg9346 = 0x50, | |
309 | Config0 = 0x51, | |
310 | Config1 = 0x52, | |
311 | FlashReg = 0x54, | |
312 | MediaStatus = 0x58, | |
313 | Config3 = 0x59, | |
314 | Config4 = 0x5A, /* absent on RTL-8139A */ | |
315 | HltClk = 0x5B, | |
316 | MultiIntr = 0x5C, | |
317 | TxSummary = 0x60, | |
318 | BasicModeCtrl = 0x62, | |
319 | BasicModeStatus = 0x64, | |
320 | NWayAdvert = 0x66, | |
321 | NWayLPAR = 0x68, | |
322 | NWayExpansion = 0x6A, | |
1da177e4 | 323 | /* Undocumented registers, but required for proper operation. */ |
28006c65 JG |
324 | FIFOTMS = 0x70, /* FIFO Control and test. */ |
325 | CSCR = 0x74, /* Chip Status and Configuration Register. */ | |
326 | PARA78 = 0x78, | |
327 | PARA7c = 0x7c, /* Magic transceiver parameter register. */ | |
328 | Config5 = 0xD8, /* absent on RTL-8139A */ | |
1da177e4 LT |
329 | }; |
330 | ||
331 | enum ClearBitMasks { | |
28006c65 JG |
332 | MultiIntrClear = 0xF000, |
333 | ChipCmdClear = 0xE2, | |
334 | Config1Clear = (1<<7)|(1<<6)|(1<<3)|(1<<2)|(1<<1), | |
1da177e4 LT |
335 | }; |
336 | ||
337 | enum ChipCmdBits { | |
28006c65 JG |
338 | CmdReset = 0x10, |
339 | CmdRxEnb = 0x08, | |
340 | CmdTxEnb = 0x04, | |
341 | RxBufEmpty = 0x01, | |
1da177e4 LT |
342 | }; |
343 | ||
344 | /* Interrupt register bits, using my own meaningful names. */ | |
345 | enum IntrStatusBits { | |
28006c65 JG |
346 | PCIErr = 0x8000, |
347 | PCSTimeout = 0x4000, | |
348 | RxFIFOOver = 0x40, | |
349 | RxUnderrun = 0x20, | |
350 | RxOverflow = 0x10, | |
351 | TxErr = 0x08, | |
352 | TxOK = 0x04, | |
353 | RxErr = 0x02, | |
354 | RxOK = 0x01, | |
355 | ||
356 | RxAckBits = RxFIFOOver | RxOverflow | RxOK, | |
1da177e4 LT |
357 | }; |
358 | ||
359 | enum TxStatusBits { | |
28006c65 JG |
360 | TxHostOwns = 0x2000, |
361 | TxUnderrun = 0x4000, | |
362 | TxStatOK = 0x8000, | |
363 | TxOutOfWindow = 0x20000000, | |
364 | TxAborted = 0x40000000, | |
365 | TxCarrierLost = 0x80000000, | |
1da177e4 LT |
366 | }; |
367 | enum RxStatusBits { | |
28006c65 JG |
368 | RxMulticast = 0x8000, |
369 | RxPhysical = 0x4000, | |
370 | RxBroadcast = 0x2000, | |
371 | RxBadSymbol = 0x0020, | |
372 | RxRunt = 0x0010, | |
373 | RxTooLong = 0x0008, | |
374 | RxCRCErr = 0x0004, | |
375 | RxBadAlign = 0x0002, | |
376 | RxStatusOK = 0x0001, | |
1da177e4 LT |
377 | }; |
378 | ||
379 | /* Bits in RxConfig. */ | |
380 | enum rx_mode_bits { | |
28006c65 JG |
381 | AcceptErr = 0x20, |
382 | AcceptRunt = 0x10, | |
383 | AcceptBroadcast = 0x08, | |
384 | AcceptMulticast = 0x04, | |
385 | AcceptMyPhys = 0x02, | |
386 | AcceptAllPhys = 0x01, | |
1da177e4 LT |
387 | }; |
388 | ||
389 | /* Bits in TxConfig. */ | |
390 | enum tx_config_bits { | |
1da177e4 | 391 | /* Interframe Gap Time. Only TxIFG96 doesn't violate IEEE 802.3 */ |
28006c65 JG |
392 | TxIFGShift = 24, |
393 | TxIFG84 = (0 << TxIFGShift), /* 8.4us / 840ns (10 / 100Mbps) */ | |
394 | TxIFG88 = (1 << TxIFGShift), /* 8.8us / 880ns (10 / 100Mbps) */ | |
395 | TxIFG92 = (2 << TxIFGShift), /* 9.2us / 920ns (10 / 100Mbps) */ | |
396 | TxIFG96 = (3 << TxIFGShift), /* 9.6us / 960ns (10 / 100Mbps) */ | |
397 | ||
398 | TxLoopBack = (1 << 18) | (1 << 17), /* enable loopback test mode */ | |
399 | TxCRC = (1 << 16), /* DISABLE Tx pkt CRC append */ | |
400 | TxClearAbt = (1 << 0), /* Clear abort (WO) */ | |
401 | TxDMAShift = 8, /* DMA burst value (0-7) is shifted X many bits */ | |
402 | TxRetryShift = 4, /* TXRR value (0-15) is shifted X many bits */ | |
403 | ||
404 | TxVersionMask = 0x7C800000, /* mask out version bits 30-26, 23 */ | |
1da177e4 LT |
405 | }; |
406 | ||
407 | /* Bits in Config1 */ | |
408 | enum Config1Bits { | |
28006c65 JG |
409 | Cfg1_PM_Enable = 0x01, |
410 | Cfg1_VPD_Enable = 0x02, | |
411 | Cfg1_PIO = 0x04, | |
412 | Cfg1_MMIO = 0x08, | |
413 | LWAKE = 0x10, /* not on 8139, 8139A */ | |
1da177e4 | 414 | Cfg1_Driver_Load = 0x20, |
28006c65 JG |
415 | Cfg1_LED0 = 0x40, |
416 | Cfg1_LED1 = 0x80, | |
417 | SLEEP = (1 << 1), /* only on 8139, 8139A */ | |
418 | PWRDN = (1 << 0), /* only on 8139, 8139A */ | |
1da177e4 LT |
419 | }; |
420 | ||
421 | /* Bits in Config3 */ | |
422 | enum Config3Bits { | |
28006c65 JG |
423 | Cfg3_FBtBEn = (1 << 0), /* 1 = Fast Back to Back */ |
424 | Cfg3_FuncRegEn = (1 << 1), /* 1 = enable CardBus Function registers */ | |
425 | Cfg3_CLKRUN_En = (1 << 2), /* 1 = enable CLKRUN */ | |
426 | Cfg3_CardB_En = (1 << 3), /* 1 = enable CardBus registers */ | |
427 | Cfg3_LinkUp = (1 << 4), /* 1 = wake up on link up */ | |
428 | Cfg3_Magic = (1 << 5), /* 1 = wake up on Magic Packet (tm) */ | |
429 | Cfg3_PARM_En = (1 << 6), /* 0 = software can set twister parameters */ | |
430 | Cfg3_GNTSel = (1 << 7), /* 1 = delay 1 clock from PCI GNT signal */ | |
1da177e4 LT |
431 | }; |
432 | ||
433 | /* Bits in Config4 */ | |
434 | enum Config4Bits { | |
28006c65 | 435 | LWPTN = (1 << 2), /* not on 8139, 8139A */ |
1da177e4 LT |
436 | }; |
437 | ||
438 | /* Bits in Config5 */ | |
439 | enum Config5Bits { | |
28006c65 JG |
440 | Cfg5_PME_STS = (1 << 0), /* 1 = PCI reset resets PME_Status */ |
441 | Cfg5_LANWake = (1 << 1), /* 1 = enable LANWake signal */ | |
442 | Cfg5_LDPS = (1 << 2), /* 0 = save power when link is down */ | |
443 | Cfg5_FIFOAddrPtr= (1 << 3), /* Realtek internal SRAM testing */ | |
444 | Cfg5_UWF = (1 << 4), /* 1 = accept unicast wakeup frame */ | |
445 | Cfg5_MWF = (1 << 5), /* 1 = accept multicast wakeup frame */ | |
446 | Cfg5_BWF = (1 << 6), /* 1 = accept broadcast wakeup frame */ | |
1da177e4 LT |
447 | }; |
448 | ||
449 | enum RxConfigBits { | |
450 | /* rx fifo threshold */ | |
28006c65 JG |
451 | RxCfgFIFOShift = 13, |
452 | RxCfgFIFONone = (7 << RxCfgFIFOShift), | |
1da177e4 LT |
453 | |
454 | /* Max DMA burst */ | |
28006c65 | 455 | RxCfgDMAShift = 8, |
1da177e4 LT |
456 | RxCfgDMAUnlimited = (7 << RxCfgDMAShift), |
457 | ||
458 | /* rx ring buffer length */ | |
28006c65 JG |
459 | RxCfgRcv8K = 0, |
460 | RxCfgRcv16K = (1 << 11), | |
461 | RxCfgRcv32K = (1 << 12), | |
462 | RxCfgRcv64K = (1 << 11) | (1 << 12), | |
1da177e4 LT |
463 | |
464 | /* Disable packet wrap at end of Rx buffer. (not possible with 64k) */ | |
28006c65 | 465 | RxNoWrap = (1 << 7), |
1da177e4 LT |
466 | }; |
467 | ||
468 | /* Twister tuning parameters from RealTek. | |
469 | Completely undocumented, but required to tune bad links on some boards. */ | |
470 | enum CSCRBits { | |
28006c65 JG |
471 | CSCR_LinkOKBit = 0x0400, |
472 | CSCR_LinkChangeBit = 0x0800, | |
473 | CSCR_LinkStatusBits = 0x0f000, | |
474 | CSCR_LinkDownOffCmd = 0x003c0, | |
475 | CSCR_LinkDownCmd = 0x0f3c0, | |
1da177e4 LT |
476 | }; |
477 | ||
478 | enum Cfg9346Bits { | |
28006c65 JG |
479 | Cfg9346_Lock = 0x00, |
480 | Cfg9346_Unlock = 0xC0, | |
1da177e4 LT |
481 | }; |
482 | ||
483 | typedef enum { | |
28006c65 | 484 | CH_8139 = 0, |
1da177e4 LT |
485 | CH_8139_K, |
486 | CH_8139A, | |
487 | CH_8139A_G, | |
488 | CH_8139B, | |
489 | CH_8130, | |
490 | CH_8139C, | |
491 | CH_8100, | |
492 | CH_8100B_8139D, | |
493 | CH_8101, | |
494 | } chip_t; | |
495 | ||
496 | enum chip_flags { | |
28006c65 JG |
497 | HasHltClk = (1 << 0), |
498 | HasLWake = (1 << 1), | |
1da177e4 LT |
499 | }; |
500 | ||
501 | #define HW_REVID(b30, b29, b28, b27, b26, b23, b22) \ | |
502 | (b30<<30 | b29<<29 | b28<<28 | b27<<27 | b26<<26 | b23<<23 | b22<<22) | |
503 | #define HW_REVID_MASK HW_REVID(1, 1, 1, 1, 1, 1, 1) | |
504 | ||
505 | /* directly indexed by chip_t, above */ | |
3c6bee1d | 506 | static const struct { |
1da177e4 LT |
507 | const char *name; |
508 | u32 version; /* from RTL8139C/RTL8139D docs */ | |
509 | u32 flags; | |
510 | } rtl_chip_info[] = { | |
511 | { "RTL-8139", | |
512 | HW_REVID(1, 0, 0, 0, 0, 0, 0), | |
513 | HasHltClk, | |
514 | }, | |
515 | ||
516 | { "RTL-8139 rev K", | |
517 | HW_REVID(1, 1, 0, 0, 0, 0, 0), | |
518 | HasHltClk, | |
519 | }, | |
520 | ||
521 | { "RTL-8139A", | |
522 | HW_REVID(1, 1, 1, 0, 0, 0, 0), | |
523 | HasHltClk, /* XXX undocumented? */ | |
524 | }, | |
525 | ||
526 | { "RTL-8139A rev G", | |
527 | HW_REVID(1, 1, 1, 0, 0, 1, 0), | |
528 | HasHltClk, /* XXX undocumented? */ | |
529 | }, | |
530 | ||
531 | { "RTL-8139B", | |
532 | HW_REVID(1, 1, 1, 1, 0, 0, 0), | |
533 | HasLWake, | |
534 | }, | |
535 | ||
536 | { "RTL-8130", | |
537 | HW_REVID(1, 1, 1, 1, 1, 0, 0), | |
538 | HasLWake, | |
539 | }, | |
540 | ||
541 | { "RTL-8139C", | |
542 | HW_REVID(1, 1, 1, 0, 1, 0, 0), | |
543 | HasLWake, | |
544 | }, | |
545 | ||
546 | { "RTL-8100", | |
547 | HW_REVID(1, 1, 1, 1, 0, 1, 0), | |
548 | HasLWake, | |
549 | }, | |
550 | ||
551 | { "RTL-8100B/8139D", | |
552 | HW_REVID(1, 1, 1, 0, 1, 0, 1), | |
7645baec JL |
553 | HasHltClk /* XXX undocumented? */ |
554 | | HasLWake, | |
1da177e4 LT |
555 | }, |
556 | ||
557 | { "RTL-8101", | |
558 | HW_REVID(1, 1, 1, 0, 1, 1, 1), | |
559 | HasLWake, | |
560 | }, | |
561 | }; | |
562 | ||
563 | struct rtl_extra_stats { | |
564 | unsigned long early_rx; | |
565 | unsigned long tx_buf_mapped; | |
566 | unsigned long tx_timeouts; | |
567 | unsigned long rx_lost_in_ring; | |
568 | }; | |
569 | ||
570 | struct rtl8139_private { | |
28006c65 JG |
571 | void __iomem *mmio_addr; |
572 | int drv_flags; | |
573 | struct pci_dev *pci_dev; | |
574 | u32 msg_enable; | |
575 | struct napi_struct napi; | |
576 | struct net_device *dev; | |
28006c65 JG |
577 | |
578 | unsigned char *rx_ring; | |
579 | unsigned int cur_rx; /* RX buf index of next pkt */ | |
580 | dma_addr_t rx_ring_dma; | |
581 | ||
582 | unsigned int tx_flag; | |
583 | unsigned long cur_tx; | |
584 | unsigned long dirty_tx; | |
585 | unsigned char *tx_buf[NUM_TX_DESC]; /* Tx bounce buffers */ | |
586 | unsigned char *tx_bufs; /* Tx bounce buffer region. */ | |
587 | dma_addr_t tx_bufs_dma; | |
588 | ||
589 | signed char phys[4]; /* MII device addresses. */ | |
590 | ||
591 | /* Twister tune state. */ | |
592 | char twistie, twist_row, twist_col; | |
593 | ||
594 | unsigned int watchdog_fired : 1; | |
595 | unsigned int default_port : 4; /* Last dev->if_port value. */ | |
596 | unsigned int have_thread : 1; | |
597 | ||
598 | spinlock_t lock; | |
599 | spinlock_t rx_lock; | |
600 | ||
601 | chip_t chipset; | |
602 | u32 rx_config; | |
603 | struct rtl_extra_stats xstats; | |
604 | ||
605 | struct delayed_work thread; | |
606 | ||
607 | struct mii_if_info mii; | |
608 | unsigned int regs_len; | |
609 | unsigned long fifo_copy_timeout; | |
1da177e4 LT |
610 | }; |
611 | ||
612 | MODULE_AUTHOR ("Jeff Garzik <jgarzik@pobox.com>"); | |
613 | MODULE_DESCRIPTION ("RealTek RTL-8139 Fast Ethernet driver"); | |
614 | MODULE_LICENSE("GPL"); | |
615 | MODULE_VERSION(DRV_VERSION); | |
616 | ||
617 | module_param(multicast_filter_limit, int, 0); | |
618 | module_param_array(media, int, NULL, 0); | |
619 | module_param_array(full_duplex, int, NULL, 0); | |
620 | module_param(debug, int, 0); | |
621 | MODULE_PARM_DESC (debug, "8139too bitmapped message enable number"); | |
622 | MODULE_PARM_DESC (multicast_filter_limit, "8139too maximum number of filtered multicast addresses"); | |
623 | MODULE_PARM_DESC (media, "8139too: Bits 4+9: force full duplex, bit 5: 100Mbps"); | |
624 | MODULE_PARM_DESC (full_duplex, "8139too: Force full duplex for board(s) (1)"); | |
625 | ||
22f714b6 | 626 | static int read_eeprom (void __iomem *ioaddr, int location, int addr_len); |
1da177e4 LT |
627 | static int rtl8139_open (struct net_device *dev); |
628 | static int mdio_read (struct net_device *dev, int phy_id, int location); | |
629 | static void mdio_write (struct net_device *dev, int phy_id, int location, | |
630 | int val); | |
a15e0384 | 631 | static void rtl8139_start_thread(struct rtl8139_private *tp); |
1da177e4 LT |
632 | static void rtl8139_tx_timeout (struct net_device *dev); |
633 | static void rtl8139_init_ring (struct net_device *dev); | |
634 | static int rtl8139_start_xmit (struct sk_buff *skb, | |
635 | struct net_device *dev); | |
1da177e4 LT |
636 | #ifdef CONFIG_NET_POLL_CONTROLLER |
637 | static void rtl8139_poll_controller(struct net_device *dev); | |
638 | #endif | |
bea3348e | 639 | static int rtl8139_poll(struct napi_struct *napi, int budget); |
7d12e780 | 640 | static irqreturn_t rtl8139_interrupt (int irq, void *dev_instance); |
1da177e4 LT |
641 | static int rtl8139_close (struct net_device *dev); |
642 | static int netdev_ioctl (struct net_device *dev, struct ifreq *rq, int cmd); | |
643 | static struct net_device_stats *rtl8139_get_stats (struct net_device *dev); | |
644 | static void rtl8139_set_rx_mode (struct net_device *dev); | |
645 | static void __set_rx_mode (struct net_device *dev); | |
646 | static void rtl8139_hw_start (struct net_device *dev); | |
c4028958 DH |
647 | static void rtl8139_thread (struct work_struct *work); |
648 | static void rtl8139_tx_timeout_task(struct work_struct *work); | |
7282d491 | 649 | static const struct ethtool_ops rtl8139_ethtool_ops; |
1da177e4 | 650 | |
1da177e4 LT |
651 | /* write MMIO register, with flush */ |
652 | /* Flush avoids rtl8139 bug w/ posted MMIO writes */ | |
22f714b6 PE |
653 | #define RTL_W8_F(reg, val8) do { iowrite8 ((val8), ioaddr + (reg)); ioread8 (ioaddr + (reg)); } while (0) |
654 | #define RTL_W16_F(reg, val16) do { iowrite16 ((val16), ioaddr + (reg)); ioread16 (ioaddr + (reg)); } while (0) | |
655 | #define RTL_W32_F(reg, val32) do { iowrite32 ((val32), ioaddr + (reg)); ioread32 (ioaddr + (reg)); } while (0) | |
1da177e4 | 656 | |
1da177e4 | 657 | /* write MMIO register */ |
22f714b6 PE |
658 | #define RTL_W8(reg, val8) iowrite8 ((val8), ioaddr + (reg)) |
659 | #define RTL_W16(reg, val16) iowrite16 ((val16), ioaddr + (reg)) | |
660 | #define RTL_W32(reg, val32) iowrite32 ((val32), ioaddr + (reg)) | |
1da177e4 | 661 | |
1da177e4 | 662 | /* read MMIO register */ |
22f714b6 PE |
663 | #define RTL_R8(reg) ioread8 (ioaddr + (reg)) |
664 | #define RTL_R16(reg) ioread16 (ioaddr + (reg)) | |
665 | #define RTL_R32(reg) ((unsigned long) ioread32 (ioaddr + (reg))) | |
1da177e4 LT |
666 | |
667 | ||
668 | static const u16 rtl8139_intr_mask = | |
669 | PCIErr | PCSTimeout | RxUnderrun | RxOverflow | RxFIFOOver | | |
670 | TxErr | TxOK | RxErr | RxOK; | |
671 | ||
672 | static const u16 rtl8139_norx_intr_mask = | |
673 | PCIErr | PCSTimeout | RxUnderrun | | |
674 | TxErr | TxOK | RxErr ; | |
675 | ||
676 | #if RX_BUF_IDX == 0 | |
677 | static const unsigned int rtl8139_rx_config = | |
678 | RxCfgRcv8K | RxNoWrap | | |
679 | (RX_FIFO_THRESH << RxCfgFIFOShift) | | |
680 | (RX_DMA_BURST << RxCfgDMAShift); | |
681 | #elif RX_BUF_IDX == 1 | |
682 | static const unsigned int rtl8139_rx_config = | |
683 | RxCfgRcv16K | RxNoWrap | | |
684 | (RX_FIFO_THRESH << RxCfgFIFOShift) | | |
685 | (RX_DMA_BURST << RxCfgDMAShift); | |
686 | #elif RX_BUF_IDX == 2 | |
687 | static const unsigned int rtl8139_rx_config = | |
688 | RxCfgRcv32K | RxNoWrap | | |
689 | (RX_FIFO_THRESH << RxCfgFIFOShift) | | |
690 | (RX_DMA_BURST << RxCfgDMAShift); | |
691 | #elif RX_BUF_IDX == 3 | |
692 | static const unsigned int rtl8139_rx_config = | |
693 | RxCfgRcv64K | | |
694 | (RX_FIFO_THRESH << RxCfgFIFOShift) | | |
695 | (RX_DMA_BURST << RxCfgDMAShift); | |
696 | #else | |
697 | #error "Invalid configuration for 8139_RXBUF_IDX" | |
698 | #endif | |
699 | ||
700 | static const unsigned int rtl8139_tx_config = | |
701 | TxIFG96 | (TX_DMA_BURST << TxDMAShift) | (TX_RETRY << TxRetryShift); | |
702 | ||
703 | static void __rtl8139_cleanup_dev (struct net_device *dev) | |
704 | { | |
705 | struct rtl8139_private *tp = netdev_priv(dev); | |
706 | struct pci_dev *pdev; | |
707 | ||
708 | assert (dev != NULL); | |
709 | assert (tp->pci_dev != NULL); | |
710 | pdev = tp->pci_dev; | |
711 | ||
22f714b6 PE |
712 | #ifdef USE_IO_OPS |
713 | if (tp->mmio_addr) | |
714 | ioport_unmap (tp->mmio_addr); | |
715 | #else | |
1da177e4 | 716 | if (tp->mmio_addr) |
22f714b6 PE |
717 | pci_iounmap (pdev, tp->mmio_addr); |
718 | #endif /* USE_IO_OPS */ | |
1da177e4 LT |
719 | |
720 | /* it's ok to call this even if we have no regions to free */ | |
721 | pci_release_regions (pdev); | |
722 | ||
723 | free_netdev(dev); | |
724 | pci_set_drvdata (pdev, NULL); | |
725 | } | |
726 | ||
727 | ||
22f714b6 | 728 | static void rtl8139_chip_reset (void __iomem *ioaddr) |
1da177e4 LT |
729 | { |
730 | int i; | |
731 | ||
732 | /* Soft reset the chip. */ | |
733 | RTL_W8 (ChipCmd, CmdReset); | |
734 | ||
735 | /* Check that the chip has finished the reset. */ | |
736 | for (i = 1000; i > 0; i--) { | |
737 | barrier(); | |
738 | if ((RTL_R8 (ChipCmd) & CmdReset) == 0) | |
739 | break; | |
740 | udelay (10); | |
741 | } | |
742 | } | |
743 | ||
744 | ||
745 | static int __devinit rtl8139_init_board (struct pci_dev *pdev, | |
746 | struct net_device **dev_out) | |
747 | { | |
22f714b6 | 748 | void __iomem *ioaddr; |
1da177e4 LT |
749 | struct net_device *dev; |
750 | struct rtl8139_private *tp; | |
751 | u8 tmp8; | |
752 | int rc, disable_dev_on_err = 0; | |
753 | unsigned int i; | |
754 | unsigned long pio_start, pio_end, pio_flags, pio_len; | |
755 | unsigned long mmio_start, mmio_end, mmio_flags, mmio_len; | |
756 | u32 version; | |
757 | ||
758 | assert (pdev != NULL); | |
759 | ||
760 | *dev_out = NULL; | |
761 | ||
762 | /* dev and priv zeroed in alloc_etherdev */ | |
763 | dev = alloc_etherdev (sizeof (*tp)); | |
764 | if (dev == NULL) { | |
9b91cf9d | 765 | dev_err(&pdev->dev, "Unable to alloc new net device\n"); |
1da177e4 LT |
766 | return -ENOMEM; |
767 | } | |
1da177e4 LT |
768 | SET_NETDEV_DEV(dev, &pdev->dev); |
769 | ||
770 | tp = netdev_priv(dev); | |
771 | tp->pci_dev = pdev; | |
772 | ||
773 | /* enable device (incl. PCI PM wakeup and hotplug setup) */ | |
774 | rc = pci_enable_device (pdev); | |
775 | if (rc) | |
776 | goto err_out; | |
777 | ||
778 | pio_start = pci_resource_start (pdev, 0); | |
779 | pio_end = pci_resource_end (pdev, 0); | |
780 | pio_flags = pci_resource_flags (pdev, 0); | |
781 | pio_len = pci_resource_len (pdev, 0); | |
782 | ||
783 | mmio_start = pci_resource_start (pdev, 1); | |
784 | mmio_end = pci_resource_end (pdev, 1); | |
785 | mmio_flags = pci_resource_flags (pdev, 1); | |
786 | mmio_len = pci_resource_len (pdev, 1); | |
787 | ||
788 | /* set this immediately, we need to know before | |
789 | * we talk to the chip directly */ | |
790 | DPRINTK("PIO region size == 0x%02X\n", pio_len); | |
791 | DPRINTK("MMIO region size == 0x%02lX\n", mmio_len); | |
792 | ||
793 | #ifdef USE_IO_OPS | |
794 | /* make sure PCI base addr 0 is PIO */ | |
795 | if (!(pio_flags & IORESOURCE_IO)) { | |
9b91cf9d | 796 | dev_err(&pdev->dev, "region #0 not a PIO resource, aborting\n"); |
1da177e4 LT |
797 | rc = -ENODEV; |
798 | goto err_out; | |
799 | } | |
800 | /* check for weird/broken PCI region reporting */ | |
801 | if (pio_len < RTL_MIN_IO_SIZE) { | |
9b91cf9d | 802 | dev_err(&pdev->dev, "Invalid PCI I/O region size(s), aborting\n"); |
1da177e4 LT |
803 | rc = -ENODEV; |
804 | goto err_out; | |
805 | } | |
806 | #else | |
807 | /* make sure PCI base addr 1 is MMIO */ | |
808 | if (!(mmio_flags & IORESOURCE_MEM)) { | |
9b91cf9d | 809 | dev_err(&pdev->dev, "region #1 not an MMIO resource, aborting\n"); |
1da177e4 LT |
810 | rc = -ENODEV; |
811 | goto err_out; | |
812 | } | |
813 | if (mmio_len < RTL_MIN_IO_SIZE) { | |
9b91cf9d | 814 | dev_err(&pdev->dev, "Invalid PCI mem region size(s), aborting\n"); |
1da177e4 LT |
815 | rc = -ENODEV; |
816 | goto err_out; | |
817 | } | |
818 | #endif | |
819 | ||
2e8a538d | 820 | rc = pci_request_regions (pdev, DRV_NAME); |
1da177e4 LT |
821 | if (rc) |
822 | goto err_out; | |
823 | disable_dev_on_err = 1; | |
824 | ||
825 | /* enable PCI bus-mastering */ | |
826 | pci_set_master (pdev); | |
827 | ||
828 | #ifdef USE_IO_OPS | |
22f714b6 PE |
829 | ioaddr = ioport_map(pio_start, pio_len); |
830 | if (!ioaddr) { | |
9b91cf9d | 831 | dev_err(&pdev->dev, "cannot map PIO, aborting\n"); |
22f714b6 PE |
832 | rc = -EIO; |
833 | goto err_out; | |
834 | } | |
1da177e4 LT |
835 | dev->base_addr = pio_start; |
836 | tp->mmio_addr = ioaddr; | |
837 | tp->regs_len = pio_len; | |
838 | #else | |
839 | /* ioremap MMIO region */ | |
22f714b6 | 840 | ioaddr = pci_iomap(pdev, 1, 0); |
1da177e4 | 841 | if (ioaddr == NULL) { |
9b91cf9d | 842 | dev_err(&pdev->dev, "cannot remap MMIO, aborting\n"); |
1da177e4 LT |
843 | rc = -EIO; |
844 | goto err_out; | |
845 | } | |
846 | dev->base_addr = (long) ioaddr; | |
847 | tp->mmio_addr = ioaddr; | |
848 | tp->regs_len = mmio_len; | |
849 | #endif /* USE_IO_OPS */ | |
850 | ||
851 | /* Bring old chips out of low-power mode. */ | |
852 | RTL_W8 (HltClk, 'R'); | |
853 | ||
854 | /* check for missing/broken hardware */ | |
855 | if (RTL_R32 (TxConfig) == 0xFFFFFFFF) { | |
9b91cf9d | 856 | dev_err(&pdev->dev, "Chip not responding, ignoring board\n"); |
1da177e4 LT |
857 | rc = -EIO; |
858 | goto err_out; | |
859 | } | |
860 | ||
861 | /* identify chip attached to board */ | |
862 | version = RTL_R32 (TxConfig) & HW_REVID_MASK; | |
863 | for (i = 0; i < ARRAY_SIZE (rtl_chip_info); i++) | |
864 | if (version == rtl_chip_info[i].version) { | |
865 | tp->chipset = i; | |
866 | goto match; | |
867 | } | |
868 | ||
869 | /* if unknown chip, assume array element #0, original RTL-8139 in this case */ | |
2e8a538d JG |
870 | dev_printk (KERN_DEBUG, &pdev->dev, |
871 | "unknown chip version, assuming RTL-8139\n"); | |
872 | dev_printk (KERN_DEBUG, &pdev->dev, | |
873 | "TxConfig = 0x%lx\n", RTL_R32 (TxConfig)); | |
1da177e4 LT |
874 | tp->chipset = 0; |
875 | ||
876 | match: | |
877 | DPRINTK ("chipset id (%d) == index %d, '%s'\n", | |
878 | version, i, rtl_chip_info[i].name); | |
879 | ||
880 | if (tp->chipset >= CH_8139B) { | |
881 | u8 new_tmp8 = tmp8 = RTL_R8 (Config1); | |
882 | DPRINTK("PCI PM wakeup\n"); | |
883 | if ((rtl_chip_info[tp->chipset].flags & HasLWake) && | |
884 | (tmp8 & LWAKE)) | |
885 | new_tmp8 &= ~LWAKE; | |
886 | new_tmp8 |= Cfg1_PM_Enable; | |
887 | if (new_tmp8 != tmp8) { | |
888 | RTL_W8 (Cfg9346, Cfg9346_Unlock); | |
889 | RTL_W8 (Config1, tmp8); | |
890 | RTL_W8 (Cfg9346, Cfg9346_Lock); | |
891 | } | |
892 | if (rtl_chip_info[tp->chipset].flags & HasLWake) { | |
893 | tmp8 = RTL_R8 (Config4); | |
894 | if (tmp8 & LWPTN) { | |
895 | RTL_W8 (Cfg9346, Cfg9346_Unlock); | |
896 | RTL_W8 (Config4, tmp8 & ~LWPTN); | |
897 | RTL_W8 (Cfg9346, Cfg9346_Lock); | |
898 | } | |
899 | } | |
900 | } else { | |
901 | DPRINTK("Old chip wakeup\n"); | |
902 | tmp8 = RTL_R8 (Config1); | |
903 | tmp8 &= ~(SLEEP | PWRDN); | |
904 | RTL_W8 (Config1, tmp8); | |
905 | } | |
906 | ||
907 | rtl8139_chip_reset (ioaddr); | |
908 | ||
909 | *dev_out = dev; | |
910 | return 0; | |
911 | ||
912 | err_out: | |
913 | __rtl8139_cleanup_dev (dev); | |
914 | if (disable_dev_on_err) | |
915 | pci_disable_device (pdev); | |
916 | return rc; | |
917 | } | |
918 | ||
919 | ||
920 | static int __devinit rtl8139_init_one (struct pci_dev *pdev, | |
921 | const struct pci_device_id *ent) | |
922 | { | |
923 | struct net_device *dev = NULL; | |
924 | struct rtl8139_private *tp; | |
925 | int i, addr_len, option; | |
22f714b6 | 926 | void __iomem *ioaddr; |
1da177e4 | 927 | static int board_idx = -1; |
0795af57 | 928 | DECLARE_MAC_BUF(mac); |
1da177e4 LT |
929 | |
930 | assert (pdev != NULL); | |
931 | assert (ent != NULL); | |
932 | ||
933 | board_idx++; | |
934 | ||
935 | /* when we're built into the kernel, the driver version message | |
936 | * is only printed if at least one 8139 board has been found | |
937 | */ | |
938 | #ifndef MODULE | |
939 | { | |
940 | static int printed_version; | |
941 | if (!printed_version++) | |
942 | printk (KERN_INFO RTL8139_DRIVER_NAME "\n"); | |
943 | } | |
944 | #endif | |
945 | ||
1da177e4 | 946 | if (pdev->vendor == PCI_VENDOR_ID_REALTEK && |
44c10138 | 947 | pdev->device == PCI_DEVICE_ID_REALTEK_8139 && pdev->revision >= 0x20) { |
9b91cf9d | 948 | dev_info(&pdev->dev, |
2e8a538d | 949 | "This (id %04x:%04x rev %02x) is an enhanced 8139C+ chip\n", |
44c10138 | 950 | pdev->vendor, pdev->device, pdev->revision); |
9b91cf9d | 951 | dev_info(&pdev->dev, |
2e8a538d | 952 | "Use the \"8139cp\" driver for improved performance and stability.\n"); |
1da177e4 LT |
953 | } |
954 | ||
955 | i = rtl8139_init_board (pdev, &dev); | |
956 | if (i < 0) | |
957 | return i; | |
958 | ||
959 | assert (dev != NULL); | |
960 | tp = netdev_priv(dev); | |
bea3348e | 961 | tp->dev = dev; |
1da177e4 LT |
962 | |
963 | ioaddr = tp->mmio_addr; | |
964 | assert (ioaddr != NULL); | |
965 | ||
966 | addr_len = read_eeprom (ioaddr, 0, 8) == 0x8129 ? 8 : 6; | |
967 | for (i = 0; i < 3; i++) | |
eca1ad82 AV |
968 | ((__le16 *) (dev->dev_addr))[i] = |
969 | cpu_to_le16(read_eeprom (ioaddr, i + 7, addr_len)); | |
62a720b8 | 970 | memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len); |
1da177e4 LT |
971 | |
972 | /* The Rtl8139-specific entries in the device structure. */ | |
973 | dev->open = rtl8139_open; | |
974 | dev->hard_start_xmit = rtl8139_start_xmit; | |
bea3348e | 975 | netif_napi_add(dev, &tp->napi, rtl8139_poll, 64); |
1da177e4 LT |
976 | dev->stop = rtl8139_close; |
977 | dev->get_stats = rtl8139_get_stats; | |
978 | dev->set_multicast_list = rtl8139_set_rx_mode; | |
979 | dev->do_ioctl = netdev_ioctl; | |
980 | dev->ethtool_ops = &rtl8139_ethtool_ops; | |
981 | dev->tx_timeout = rtl8139_tx_timeout; | |
982 | dev->watchdog_timeo = TX_TIMEOUT; | |
983 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
984 | dev->poll_controller = rtl8139_poll_controller; | |
985 | #endif | |
986 | ||
987 | /* note: the hardware is not capable of sg/csum/highdma, however | |
988 | * through the use of skb_copy_and_csum_dev we enable these | |
989 | * features | |
990 | */ | |
991 | dev->features |= NETIF_F_SG | NETIF_F_HW_CSUM | NETIF_F_HIGHDMA; | |
992 | ||
993 | dev->irq = pdev->irq; | |
994 | ||
995 | /* tp zeroed and aligned in alloc_etherdev */ | |
996 | tp = netdev_priv(dev); | |
997 | ||
998 | /* note: tp->chipset set in rtl8139_init_board */ | |
999 | tp->drv_flags = board_info[ent->driver_data].hw_flags; | |
1000 | tp->mmio_addr = ioaddr; | |
1001 | tp->msg_enable = | |
1002 | (debug < 0 ? RTL8139_DEF_MSG_ENABLE : ((1 << debug) - 1)); | |
1003 | spin_lock_init (&tp->lock); | |
1004 | spin_lock_init (&tp->rx_lock); | |
c4028958 | 1005 | INIT_DELAYED_WORK(&tp->thread, rtl8139_thread); |
1da177e4 LT |
1006 | tp->mii.dev = dev; |
1007 | tp->mii.mdio_read = mdio_read; | |
1008 | tp->mii.mdio_write = mdio_write; | |
1009 | tp->mii.phy_id_mask = 0x3f; | |
1010 | tp->mii.reg_num_mask = 0x1f; | |
1011 | ||
1012 | /* dev is fully set up and ready to use now */ | |
1013 | DPRINTK("about to register device named %s (%p)...\n", dev->name, dev); | |
1014 | i = register_netdev (dev); | |
1015 | if (i) goto err_out; | |
1016 | ||
1017 | pci_set_drvdata (pdev, dev); | |
1018 | ||
1019 | printk (KERN_INFO "%s: %s at 0x%lx, " | |
0795af57 | 1020 | "%s, IRQ %d\n", |
1da177e4 LT |
1021 | dev->name, |
1022 | board_info[ent->driver_data].name, | |
1023 | dev->base_addr, | |
0795af57 | 1024 | print_mac(mac, dev->dev_addr), |
1da177e4 LT |
1025 | dev->irq); |
1026 | ||
1027 | printk (KERN_DEBUG "%s: Identified 8139 chip type '%s'\n", | |
1028 | dev->name, rtl_chip_info[tp->chipset].name); | |
1029 | ||
1030 | /* Find the connected MII xcvrs. | |
1031 | Doing this in open() would allow detecting external xcvrs later, but | |
1032 | takes too much time. */ | |
1033 | #ifdef CONFIG_8139TOO_8129 | |
1034 | if (tp->drv_flags & HAS_MII_XCVR) { | |
1035 | int phy, phy_idx = 0; | |
1036 | for (phy = 0; phy < 32 && phy_idx < sizeof(tp->phys); phy++) { | |
1037 | int mii_status = mdio_read(dev, phy, 1); | |
1038 | if (mii_status != 0xffff && mii_status != 0x0000) { | |
1039 | u16 advertising = mdio_read(dev, phy, 4); | |
1040 | tp->phys[phy_idx++] = phy; | |
1041 | printk(KERN_INFO "%s: MII transceiver %d status 0x%4.4x " | |
1042 | "advertising %4.4x.\n", | |
1043 | dev->name, phy, mii_status, advertising); | |
1044 | } | |
1045 | } | |
1046 | if (phy_idx == 0) { | |
1047 | printk(KERN_INFO "%s: No MII transceivers found! Assuming SYM " | |
1048 | "transceiver.\n", | |
1049 | dev->name); | |
1050 | tp->phys[0] = 32; | |
1051 | } | |
1052 | } else | |
1053 | #endif | |
1054 | tp->phys[0] = 32; | |
1055 | tp->mii.phy_id = tp->phys[0]; | |
1056 | ||
1057 | /* The lower four bits are the media type. */ | |
1058 | option = (board_idx >= MAX_UNITS) ? 0 : media[board_idx]; | |
1059 | if (option > 0) { | |
1060 | tp->mii.full_duplex = (option & 0x210) ? 1 : 0; | |
1061 | tp->default_port = option & 0xFF; | |
1062 | if (tp->default_port) | |
1063 | tp->mii.force_media = 1; | |
1064 | } | |
1065 | if (board_idx < MAX_UNITS && full_duplex[board_idx] > 0) | |
1066 | tp->mii.full_duplex = full_duplex[board_idx]; | |
1067 | if (tp->mii.full_duplex) { | |
1068 | printk(KERN_INFO "%s: Media type forced to Full Duplex.\n", dev->name); | |
1069 | /* Changing the MII-advertised media because might prevent | |
1070 | re-connection. */ | |
1071 | tp->mii.force_media = 1; | |
1072 | } | |
1073 | if (tp->default_port) { | |
1074 | printk(KERN_INFO " Forcing %dMbps %s-duplex operation.\n", | |
1075 | (option & 0x20 ? 100 : 10), | |
1076 | (option & 0x10 ? "full" : "half")); | |
1077 | mdio_write(dev, tp->phys[0], 0, | |
1078 | ((option & 0x20) ? 0x2000 : 0) | /* 100Mbps? */ | |
1079 | ((option & 0x10) ? 0x0100 : 0)); /* Full duplex? */ | |
1080 | } | |
1081 | ||
1082 | /* Put the chip into low-power mode. */ | |
1083 | if (rtl_chip_info[tp->chipset].flags & HasHltClk) | |
1084 | RTL_W8 (HltClk, 'H'); /* 'R' would leave the clock running. */ | |
1085 | ||
1086 | return 0; | |
1087 | ||
1088 | err_out: | |
1089 | __rtl8139_cleanup_dev (dev); | |
1090 | pci_disable_device (pdev); | |
1091 | return i; | |
1092 | } | |
1093 | ||
1094 | ||
1095 | static void __devexit rtl8139_remove_one (struct pci_dev *pdev) | |
1096 | { | |
1097 | struct net_device *dev = pci_get_drvdata (pdev); | |
1098 | ||
1099 | assert (dev != NULL); | |
1100 | ||
83cbb4d2 FR |
1101 | flush_scheduled_work(); |
1102 | ||
1da177e4 LT |
1103 | unregister_netdev (dev); |
1104 | ||
1105 | __rtl8139_cleanup_dev (dev); | |
1106 | pci_disable_device (pdev); | |
1107 | } | |
1108 | ||
1109 | ||
1110 | /* Serial EEPROM section. */ | |
1111 | ||
1112 | /* EEPROM_Ctrl bits. */ | |
1113 | #define EE_SHIFT_CLK 0x04 /* EEPROM shift clock. */ | |
1114 | #define EE_CS 0x08 /* EEPROM chip select. */ | |
1115 | #define EE_DATA_WRITE 0x02 /* EEPROM chip data in. */ | |
1116 | #define EE_WRITE_0 0x00 | |
1117 | #define EE_WRITE_1 0x02 | |
1118 | #define EE_DATA_READ 0x01 /* EEPROM chip data out. */ | |
1119 | #define EE_ENB (0x80 | EE_CS) | |
1120 | ||
1121 | /* Delay between EEPROM clock transitions. | |
1122 | No extra delay is needed with 33Mhz PCI, but 66Mhz may change this. | |
1123 | */ | |
1124 | ||
10e705f8 | 1125 | #define eeprom_delay() (void)RTL_R32(Cfg9346) |
1da177e4 LT |
1126 | |
1127 | /* The EEPROM commands include the alway-set leading bit. */ | |
1128 | #define EE_WRITE_CMD (5) | |
1129 | #define EE_READ_CMD (6) | |
1130 | #define EE_ERASE_CMD (7) | |
1131 | ||
22f714b6 | 1132 | static int __devinit read_eeprom (void __iomem *ioaddr, int location, int addr_len) |
1da177e4 LT |
1133 | { |
1134 | int i; | |
1135 | unsigned retval = 0; | |
1da177e4 LT |
1136 | int read_cmd = location | (EE_READ_CMD << addr_len); |
1137 | ||
22f714b6 PE |
1138 | RTL_W8 (Cfg9346, EE_ENB & ~EE_CS); |
1139 | RTL_W8 (Cfg9346, EE_ENB); | |
1da177e4 LT |
1140 | eeprom_delay (); |
1141 | ||
1142 | /* Shift the read command bits out. */ | |
1143 | for (i = 4 + addr_len; i >= 0; i--) { | |
1144 | int dataval = (read_cmd & (1 << i)) ? EE_DATA_WRITE : 0; | |
22f714b6 | 1145 | RTL_W8 (Cfg9346, EE_ENB | dataval); |
1da177e4 | 1146 | eeprom_delay (); |
22f714b6 | 1147 | RTL_W8 (Cfg9346, EE_ENB | dataval | EE_SHIFT_CLK); |
1da177e4 LT |
1148 | eeprom_delay (); |
1149 | } | |
22f714b6 | 1150 | RTL_W8 (Cfg9346, EE_ENB); |
1da177e4 LT |
1151 | eeprom_delay (); |
1152 | ||
1153 | for (i = 16; i > 0; i--) { | |
22f714b6 | 1154 | RTL_W8 (Cfg9346, EE_ENB | EE_SHIFT_CLK); |
1da177e4 LT |
1155 | eeprom_delay (); |
1156 | retval = | |
22f714b6 | 1157 | (retval << 1) | ((RTL_R8 (Cfg9346) & EE_DATA_READ) ? 1 : |
1da177e4 | 1158 | 0); |
22f714b6 | 1159 | RTL_W8 (Cfg9346, EE_ENB); |
1da177e4 LT |
1160 | eeprom_delay (); |
1161 | } | |
1162 | ||
1163 | /* Terminate the EEPROM access. */ | |
22f714b6 | 1164 | RTL_W8 (Cfg9346, ~EE_CS); |
1da177e4 LT |
1165 | eeprom_delay (); |
1166 | ||
1167 | return retval; | |
1168 | } | |
1169 | ||
1170 | /* MII serial management: mostly bogus for now. */ | |
1171 | /* Read and write the MII management registers using software-generated | |
1172 | serial MDIO protocol. | |
1173 | The maximum data clock rate is 2.5 Mhz. The minimum timing is usually | |
1174 | met by back-to-back PCI I/O cycles, but we insert a delay to avoid | |
1175 | "overclocking" issues. */ | |
1176 | #define MDIO_DIR 0x80 | |
1177 | #define MDIO_DATA_OUT 0x04 | |
1178 | #define MDIO_DATA_IN 0x02 | |
1179 | #define MDIO_CLK 0x01 | |
1180 | #define MDIO_WRITE0 (MDIO_DIR) | |
1181 | #define MDIO_WRITE1 (MDIO_DIR | MDIO_DATA_OUT) | |
1182 | ||
22f714b6 | 1183 | #define mdio_delay() RTL_R8(Config4) |
1da177e4 LT |
1184 | |
1185 | ||
f71e1309 | 1186 | static const char mii_2_8139_map[8] = { |
1da177e4 LT |
1187 | BasicModeCtrl, |
1188 | BasicModeStatus, | |
1189 | 0, | |
1190 | 0, | |
1191 | NWayAdvert, | |
1192 | NWayLPAR, | |
1193 | NWayExpansion, | |
1194 | 0 | |
1195 | }; | |
1196 | ||
1197 | ||
1198 | #ifdef CONFIG_8139TOO_8129 | |
1199 | /* Syncronize the MII management interface by shifting 32 one bits out. */ | |
22f714b6 | 1200 | static void mdio_sync (void __iomem *ioaddr) |
1da177e4 LT |
1201 | { |
1202 | int i; | |
1203 | ||
1204 | for (i = 32; i >= 0; i--) { | |
22f714b6 PE |
1205 | RTL_W8 (Config4, MDIO_WRITE1); |
1206 | mdio_delay (); | |
1207 | RTL_W8 (Config4, MDIO_WRITE1 | MDIO_CLK); | |
1208 | mdio_delay (); | |
1da177e4 LT |
1209 | } |
1210 | } | |
1211 | #endif | |
1212 | ||
1213 | static int mdio_read (struct net_device *dev, int phy_id, int location) | |
1214 | { | |
1215 | struct rtl8139_private *tp = netdev_priv(dev); | |
1216 | int retval = 0; | |
1217 | #ifdef CONFIG_8139TOO_8129 | |
22f714b6 | 1218 | void __iomem *ioaddr = tp->mmio_addr; |
1da177e4 LT |
1219 | int mii_cmd = (0xf6 << 10) | (phy_id << 5) | location; |
1220 | int i; | |
1221 | #endif | |
1222 | ||
1223 | if (phy_id > 31) { /* Really a 8139. Use internal registers. */ | |
22f714b6 | 1224 | void __iomem *ioaddr = tp->mmio_addr; |
1da177e4 | 1225 | return location < 8 && mii_2_8139_map[location] ? |
22f714b6 | 1226 | RTL_R16 (mii_2_8139_map[location]) : 0; |
1da177e4 LT |
1227 | } |
1228 | ||
1229 | #ifdef CONFIG_8139TOO_8129 | |
22f714b6 | 1230 | mdio_sync (ioaddr); |
1da177e4 LT |
1231 | /* Shift the read command bits out. */ |
1232 | for (i = 15; i >= 0; i--) { | |
1233 | int dataval = (mii_cmd & (1 << i)) ? MDIO_DATA_OUT : 0; | |
1234 | ||
22f714b6 PE |
1235 | RTL_W8 (Config4, MDIO_DIR | dataval); |
1236 | mdio_delay (); | |
1237 | RTL_W8 (Config4, MDIO_DIR | dataval | MDIO_CLK); | |
1238 | mdio_delay (); | |
1da177e4 LT |
1239 | } |
1240 | ||
1241 | /* Read the two transition, 16 data, and wire-idle bits. */ | |
1242 | for (i = 19; i > 0; i--) { | |
22f714b6 PE |
1243 | RTL_W8 (Config4, 0); |
1244 | mdio_delay (); | |
1245 | retval = (retval << 1) | ((RTL_R8 (Config4) & MDIO_DATA_IN) ? 1 : 0); | |
1246 | RTL_W8 (Config4, MDIO_CLK); | |
1247 | mdio_delay (); | |
1da177e4 LT |
1248 | } |
1249 | #endif | |
1250 | ||
1251 | return (retval >> 1) & 0xffff; | |
1252 | } | |
1253 | ||
1254 | ||
1255 | static void mdio_write (struct net_device *dev, int phy_id, int location, | |
1256 | int value) | |
1257 | { | |
1258 | struct rtl8139_private *tp = netdev_priv(dev); | |
1259 | #ifdef CONFIG_8139TOO_8129 | |
22f714b6 | 1260 | void __iomem *ioaddr = tp->mmio_addr; |
1da177e4 LT |
1261 | int mii_cmd = (0x5002 << 16) | (phy_id << 23) | (location << 18) | value; |
1262 | int i; | |
1263 | #endif | |
1264 | ||
1265 | if (phy_id > 31) { /* Really a 8139. Use internal registers. */ | |
22f714b6 | 1266 | void __iomem *ioaddr = tp->mmio_addr; |
1da177e4 LT |
1267 | if (location == 0) { |
1268 | RTL_W8 (Cfg9346, Cfg9346_Unlock); | |
1269 | RTL_W16 (BasicModeCtrl, value); | |
1270 | RTL_W8 (Cfg9346, Cfg9346_Lock); | |
1271 | } else if (location < 8 && mii_2_8139_map[location]) | |
1272 | RTL_W16 (mii_2_8139_map[location], value); | |
1273 | return; | |
1274 | } | |
1275 | ||
1276 | #ifdef CONFIG_8139TOO_8129 | |
22f714b6 | 1277 | mdio_sync (ioaddr); |
1da177e4 LT |
1278 | |
1279 | /* Shift the command bits out. */ | |
1280 | for (i = 31; i >= 0; i--) { | |
1281 | int dataval = | |
1282 | (mii_cmd & (1 << i)) ? MDIO_WRITE1 : MDIO_WRITE0; | |
22f714b6 PE |
1283 | RTL_W8 (Config4, dataval); |
1284 | mdio_delay (); | |
1285 | RTL_W8 (Config4, dataval | MDIO_CLK); | |
1286 | mdio_delay (); | |
1da177e4 LT |
1287 | } |
1288 | /* Clear out extra bits. */ | |
1289 | for (i = 2; i > 0; i--) { | |
22f714b6 PE |
1290 | RTL_W8 (Config4, 0); |
1291 | mdio_delay (); | |
1292 | RTL_W8 (Config4, MDIO_CLK); | |
1293 | mdio_delay (); | |
1da177e4 LT |
1294 | } |
1295 | #endif | |
1296 | } | |
1297 | ||
1298 | ||
1299 | static int rtl8139_open (struct net_device *dev) | |
1300 | { | |
1301 | struct rtl8139_private *tp = netdev_priv(dev); | |
1302 | int retval; | |
22f714b6 | 1303 | void __iomem *ioaddr = tp->mmio_addr; |
1da177e4 | 1304 | |
1fb9df5d | 1305 | retval = request_irq (dev->irq, rtl8139_interrupt, IRQF_SHARED, dev->name, dev); |
1da177e4 LT |
1306 | if (retval) |
1307 | return retval; | |
1308 | ||
6cc92cdd JG |
1309 | tp->tx_bufs = dma_alloc_coherent(&tp->pci_dev->dev, TX_BUF_TOT_LEN, |
1310 | &tp->tx_bufs_dma, GFP_KERNEL); | |
1311 | tp->rx_ring = dma_alloc_coherent(&tp->pci_dev->dev, RX_BUF_TOT_LEN, | |
1312 | &tp->rx_ring_dma, GFP_KERNEL); | |
1da177e4 LT |
1313 | if (tp->tx_bufs == NULL || tp->rx_ring == NULL) { |
1314 | free_irq(dev->irq, dev); | |
1315 | ||
1316 | if (tp->tx_bufs) | |
6cc92cdd | 1317 | dma_free_coherent(&tp->pci_dev->dev, TX_BUF_TOT_LEN, |
1da177e4 LT |
1318 | tp->tx_bufs, tp->tx_bufs_dma); |
1319 | if (tp->rx_ring) | |
6cc92cdd | 1320 | dma_free_coherent(&tp->pci_dev->dev, RX_BUF_TOT_LEN, |
1da177e4 LT |
1321 | tp->rx_ring, tp->rx_ring_dma); |
1322 | ||
1323 | return -ENOMEM; | |
1324 | ||
1325 | } | |
1326 | ||
bea3348e SH |
1327 | napi_enable(&tp->napi); |
1328 | ||
1da177e4 LT |
1329 | tp->mii.full_duplex = tp->mii.force_media; |
1330 | tp->tx_flag = (TX_FIFO_THRESH << 11) & 0x003f0000; | |
1331 | ||
1332 | rtl8139_init_ring (dev); | |
1333 | rtl8139_hw_start (dev); | |
1334 | netif_start_queue (dev); | |
1335 | ||
1336 | if (netif_msg_ifup(tp)) | |
7c7459d1 GKH |
1337 | printk(KERN_DEBUG "%s: rtl8139_open() ioaddr %#llx IRQ %d" |
1338 | " GP Pins %2.2x %s-duplex.\n", dev->name, | |
1339 | (unsigned long long)pci_resource_start (tp->pci_dev, 1), | |
1da177e4 LT |
1340 | dev->irq, RTL_R8 (MediaStatus), |
1341 | tp->mii.full_duplex ? "full" : "half"); | |
1342 | ||
a15e0384 | 1343 | rtl8139_start_thread(tp); |
1da177e4 LT |
1344 | |
1345 | return 0; | |
1346 | } | |
1347 | ||
1348 | ||
1349 | static void rtl_check_media (struct net_device *dev, unsigned int init_media) | |
1350 | { | |
1351 | struct rtl8139_private *tp = netdev_priv(dev); | |
1352 | ||
1353 | if (tp->phys[0] >= 0) { | |
1354 | mii_check_media(&tp->mii, netif_msg_link(tp), init_media); | |
1355 | } | |
1356 | } | |
1357 | ||
1358 | /* Start the hardware at open or resume. */ | |
1359 | static void rtl8139_hw_start (struct net_device *dev) | |
1360 | { | |
1361 | struct rtl8139_private *tp = netdev_priv(dev); | |
22f714b6 | 1362 | void __iomem *ioaddr = tp->mmio_addr; |
1da177e4 LT |
1363 | u32 i; |
1364 | u8 tmp; | |
1365 | ||
1366 | /* Bring old chips out of low-power mode. */ | |
1367 | if (rtl_chip_info[tp->chipset].flags & HasHltClk) | |
1368 | RTL_W8 (HltClk, 'R'); | |
1369 | ||
1370 | rtl8139_chip_reset (ioaddr); | |
1371 | ||
1372 | /* unlock Config[01234] and BMCR register writes */ | |
1373 | RTL_W8_F (Cfg9346, Cfg9346_Unlock); | |
1374 | /* Restore our idea of the MAC address. */ | |
eca1ad82 AV |
1375 | RTL_W32_F (MAC0 + 0, le32_to_cpu (*(__le32 *) (dev->dev_addr + 0))); |
1376 | RTL_W32_F (MAC0 + 4, le16_to_cpu (*(__le16 *) (dev->dev_addr + 4))); | |
1da177e4 LT |
1377 | |
1378 | /* Must enable Tx/Rx before setting transfer thresholds! */ | |
1379 | RTL_W8 (ChipCmd, CmdRxEnb | CmdTxEnb); | |
1380 | ||
1381 | tp->rx_config = rtl8139_rx_config | AcceptBroadcast | AcceptMyPhys; | |
1382 | RTL_W32 (RxConfig, tp->rx_config); | |
1383 | RTL_W32 (TxConfig, rtl8139_tx_config); | |
1384 | ||
1385 | tp->cur_rx = 0; | |
1386 | ||
1387 | rtl_check_media (dev, 1); | |
1388 | ||
1389 | if (tp->chipset >= CH_8139B) { | |
1390 | /* Disable magic packet scanning, which is enabled | |
1391 | * when PM is enabled in Config1. It can be reenabled | |
1392 | * via ETHTOOL_SWOL if desired. */ | |
1393 | RTL_W8 (Config3, RTL_R8 (Config3) & ~Cfg3_Magic); | |
1394 | } | |
1395 | ||
1396 | DPRINTK("init buffer addresses\n"); | |
1397 | ||
1398 | /* Lock Config[01234] and BMCR register writes */ | |
1399 | RTL_W8 (Cfg9346, Cfg9346_Lock); | |
1400 | ||
1401 | /* init Rx ring buffer DMA address */ | |
1402 | RTL_W32_F (RxBuf, tp->rx_ring_dma); | |
1403 | ||
1404 | /* init Tx buffer DMA addresses */ | |
1405 | for (i = 0; i < NUM_TX_DESC; i++) | |
1406 | RTL_W32_F (TxAddr0 + (i * 4), tp->tx_bufs_dma + (tp->tx_buf[i] - tp->tx_bufs)); | |
1407 | ||
1408 | RTL_W32 (RxMissed, 0); | |
1409 | ||
1410 | rtl8139_set_rx_mode (dev); | |
1411 | ||
1412 | /* no early-rx interrupts */ | |
1413 | RTL_W16 (MultiIntr, RTL_R16 (MultiIntr) & MultiIntrClear); | |
1414 | ||
1415 | /* make sure RxTx has started */ | |
1416 | tmp = RTL_R8 (ChipCmd); | |
1417 | if ((!(tmp & CmdRxEnb)) || (!(tmp & CmdTxEnb))) | |
1418 | RTL_W8 (ChipCmd, CmdRxEnb | CmdTxEnb); | |
1419 | ||
1420 | /* Enable all known interrupts by setting the interrupt mask. */ | |
1421 | RTL_W16 (IntrMask, rtl8139_intr_mask); | |
1422 | } | |
1423 | ||
1424 | ||
1425 | /* Initialize the Rx and Tx rings, along with various 'dev' bits. */ | |
1426 | static void rtl8139_init_ring (struct net_device *dev) | |
1427 | { | |
1428 | struct rtl8139_private *tp = netdev_priv(dev); | |
1429 | int i; | |
1430 | ||
1431 | tp->cur_rx = 0; | |
1432 | tp->cur_tx = 0; | |
1433 | tp->dirty_tx = 0; | |
1434 | ||
1435 | for (i = 0; i < NUM_TX_DESC; i++) | |
1436 | tp->tx_buf[i] = &tp->tx_bufs[i * TX_BUF_SIZE]; | |
1437 | } | |
1438 | ||
1439 | ||
1440 | /* This must be global for CONFIG_8139TOO_TUNE_TWISTER case */ | |
1441 | static int next_tick = 3 * HZ; | |
1442 | ||
1443 | #ifndef CONFIG_8139TOO_TUNE_TWISTER | |
1444 | static inline void rtl8139_tune_twister (struct net_device *dev, | |
1445 | struct rtl8139_private *tp) {} | |
1446 | #else | |
1447 | enum TwisterParamVals { | |
1448 | PARA78_default = 0x78fa8388, | |
1449 | PARA7c_default = 0xcb38de43, /* param[0][3] */ | |
1450 | PARA7c_xxx = 0xcb38de43, | |
1451 | }; | |
1452 | ||
1453 | static const unsigned long param[4][4] = { | |
1454 | {0xcb39de43, 0xcb39ce43, 0xfb38de03, 0xcb38de43}, | |
1455 | {0xcb39de43, 0xcb39ce43, 0xcb39ce83, 0xcb39ce83}, | |
1456 | {0xcb39de43, 0xcb39ce43, 0xcb39ce83, 0xcb39ce83}, | |
1457 | {0xbb39de43, 0xbb39ce43, 0xbb39ce83, 0xbb39ce83} | |
1458 | }; | |
1459 | ||
1460 | static void rtl8139_tune_twister (struct net_device *dev, | |
1461 | struct rtl8139_private *tp) | |
1462 | { | |
1463 | int linkcase; | |
22f714b6 | 1464 | void __iomem *ioaddr = tp->mmio_addr; |
1da177e4 LT |
1465 | |
1466 | /* This is a complicated state machine to configure the "twister" for | |
1467 | impedance/echos based on the cable length. | |
1468 | All of this is magic and undocumented. | |
1469 | */ | |
1470 | switch (tp->twistie) { | |
1471 | case 1: | |
1472 | if (RTL_R16 (CSCR) & CSCR_LinkOKBit) { | |
1473 | /* We have link beat, let us tune the twister. */ | |
1474 | RTL_W16 (CSCR, CSCR_LinkDownOffCmd); | |
1475 | tp->twistie = 2; /* Change to state 2. */ | |
1476 | next_tick = HZ / 10; | |
1477 | } else { | |
1478 | /* Just put in some reasonable defaults for when beat returns. */ | |
1479 | RTL_W16 (CSCR, CSCR_LinkDownCmd); | |
1480 | RTL_W32 (FIFOTMS, 0x20); /* Turn on cable test mode. */ | |
1481 | RTL_W32 (PARA78, PARA78_default); | |
1482 | RTL_W32 (PARA7c, PARA7c_default); | |
1483 | tp->twistie = 0; /* Bail from future actions. */ | |
1484 | } | |
1485 | break; | |
1486 | case 2: | |
1487 | /* Read how long it took to hear the echo. */ | |
1488 | linkcase = RTL_R16 (CSCR) & CSCR_LinkStatusBits; | |
1489 | if (linkcase == 0x7000) | |
1490 | tp->twist_row = 3; | |
1491 | else if (linkcase == 0x3000) | |
1492 | tp->twist_row = 2; | |
1493 | else if (linkcase == 0x1000) | |
1494 | tp->twist_row = 1; | |
1495 | else | |
1496 | tp->twist_row = 0; | |
1497 | tp->twist_col = 0; | |
1498 | tp->twistie = 3; /* Change to state 2. */ | |
1499 | next_tick = HZ / 10; | |
1500 | break; | |
1501 | case 3: | |
1502 | /* Put out four tuning parameters, one per 100msec. */ | |
1503 | if (tp->twist_col == 0) | |
1504 | RTL_W16 (FIFOTMS, 0); | |
1505 | RTL_W32 (PARA7c, param[(int) tp->twist_row] | |
1506 | [(int) tp->twist_col]); | |
1507 | next_tick = HZ / 10; | |
1508 | if (++tp->twist_col >= 4) { | |
1509 | /* For short cables we are done. | |
1510 | For long cables (row == 3) check for mistune. */ | |
1511 | tp->twistie = | |
1512 | (tp->twist_row == 3) ? 4 : 0; | |
1513 | } | |
1514 | break; | |
1515 | case 4: | |
1516 | /* Special case for long cables: check for mistune. */ | |
1517 | if ((RTL_R16 (CSCR) & | |
1518 | CSCR_LinkStatusBits) == 0x7000) { | |
1519 | tp->twistie = 0; | |
1520 | break; | |
1521 | } else { | |
1522 | RTL_W32 (PARA7c, 0xfb38de03); | |
1523 | tp->twistie = 5; | |
1524 | next_tick = HZ / 10; | |
1525 | } | |
1526 | break; | |
1527 | case 5: | |
1528 | /* Retune for shorter cable (column 2). */ | |
1529 | RTL_W32 (FIFOTMS, 0x20); | |
1530 | RTL_W32 (PARA78, PARA78_default); | |
1531 | RTL_W32 (PARA7c, PARA7c_default); | |
1532 | RTL_W32 (FIFOTMS, 0x00); | |
1533 | tp->twist_row = 2; | |
1534 | tp->twist_col = 0; | |
1535 | tp->twistie = 3; | |
1536 | next_tick = HZ / 10; | |
1537 | break; | |
1538 | ||
1539 | default: | |
1540 | /* do nothing */ | |
1541 | break; | |
1542 | } | |
1543 | } | |
1544 | #endif /* CONFIG_8139TOO_TUNE_TWISTER */ | |
1545 | ||
1546 | static inline void rtl8139_thread_iter (struct net_device *dev, | |
1547 | struct rtl8139_private *tp, | |
22f714b6 | 1548 | void __iomem *ioaddr) |
1da177e4 LT |
1549 | { |
1550 | int mii_lpa; | |
1551 | ||
1552 | mii_lpa = mdio_read (dev, tp->phys[0], MII_LPA); | |
1553 | ||
1554 | if (!tp->mii.force_media && mii_lpa != 0xffff) { | |
1555 | int duplex = (mii_lpa & LPA_100FULL) | |
1556 | || (mii_lpa & 0x01C0) == 0x0040; | |
1557 | if (tp->mii.full_duplex != duplex) { | |
1558 | tp->mii.full_duplex = duplex; | |
1559 | ||
1560 | if (mii_lpa) { | |
1561 | printk (KERN_INFO | |
1562 | "%s: Setting %s-duplex based on MII #%d link" | |
1563 | " partner ability of %4.4x.\n", | |
1564 | dev->name, | |
1565 | tp->mii.full_duplex ? "full" : "half", | |
1566 | tp->phys[0], mii_lpa); | |
1567 | } else { | |
1568 | printk(KERN_INFO"%s: media is unconnected, link down, or incompatible connection\n", | |
1569 | dev->name); | |
1570 | } | |
1571 | #if 0 | |
1572 | RTL_W8 (Cfg9346, Cfg9346_Unlock); | |
1573 | RTL_W8 (Config1, tp->mii.full_duplex ? 0x60 : 0x20); | |
1574 | RTL_W8 (Cfg9346, Cfg9346_Lock); | |
1575 | #endif | |
1576 | } | |
1577 | } | |
1578 | ||
1579 | next_tick = HZ * 60; | |
1580 | ||
1581 | rtl8139_tune_twister (dev, tp); | |
1582 | ||
1583 | DPRINTK ("%s: Media selection tick, Link partner %4.4x.\n", | |
1584 | dev->name, RTL_R16 (NWayLPAR)); | |
1585 | DPRINTK ("%s: Other registers are IntMask %4.4x IntStatus %4.4x\n", | |
1586 | dev->name, RTL_R16 (IntrMask), RTL_R16 (IntrStatus)); | |
1587 | DPRINTK ("%s: Chip config %2.2x %2.2x.\n", | |
1588 | dev->name, RTL_R8 (Config0), | |
1589 | RTL_R8 (Config1)); | |
1590 | } | |
1591 | ||
c4028958 | 1592 | static void rtl8139_thread (struct work_struct *work) |
1da177e4 | 1593 | { |
c4028958 DH |
1594 | struct rtl8139_private *tp = |
1595 | container_of(work, struct rtl8139_private, thread.work); | |
1596 | struct net_device *dev = tp->mii.dev; | |
371e8bc2 | 1597 | unsigned long thr_delay = next_tick; |
1da177e4 | 1598 | |
83cbb4d2 FR |
1599 | rtnl_lock(); |
1600 | ||
1601 | if (!netif_running(dev)) | |
1602 | goto out_unlock; | |
1603 | ||
371e8bc2 FR |
1604 | if (tp->watchdog_fired) { |
1605 | tp->watchdog_fired = 0; | |
c4028958 | 1606 | rtl8139_tx_timeout_task(work); |
83cbb4d2 FR |
1607 | } else |
1608 | rtl8139_thread_iter(dev, tp, tp->mmio_addr); | |
1da177e4 | 1609 | |
83cbb4d2 FR |
1610 | if (tp->have_thread) |
1611 | schedule_delayed_work(&tp->thread, thr_delay); | |
1612 | out_unlock: | |
1613 | rtnl_unlock (); | |
1da177e4 LT |
1614 | } |
1615 | ||
a15e0384 | 1616 | static void rtl8139_start_thread(struct rtl8139_private *tp) |
1da177e4 | 1617 | { |
1da177e4 | 1618 | tp->twistie = 0; |
1da177e4 LT |
1619 | if (tp->chipset == CH_8139_K) |
1620 | tp->twistie = 1; | |
1621 | else if (tp->drv_flags & HAS_LNK_CHNG) | |
1622 | return; | |
1623 | ||
38b492a2 | 1624 | tp->have_thread = 1; |
83cbb4d2 | 1625 | tp->watchdog_fired = 0; |
a15e0384 JG |
1626 | |
1627 | schedule_delayed_work(&tp->thread, next_tick); | |
1628 | } | |
1629 | ||
1da177e4 LT |
1630 | static inline void rtl8139_tx_clear (struct rtl8139_private *tp) |
1631 | { | |
1632 | tp->cur_tx = 0; | |
1633 | tp->dirty_tx = 0; | |
1634 | ||
1635 | /* XXX account for unsent Tx packets in tp->stats.tx_dropped */ | |
1636 | } | |
1637 | ||
c4028958 | 1638 | static void rtl8139_tx_timeout_task (struct work_struct *work) |
1da177e4 | 1639 | { |
c4028958 DH |
1640 | struct rtl8139_private *tp = |
1641 | container_of(work, struct rtl8139_private, thread.work); | |
1642 | struct net_device *dev = tp->mii.dev; | |
22f714b6 | 1643 | void __iomem *ioaddr = tp->mmio_addr; |
1da177e4 LT |
1644 | int i; |
1645 | u8 tmp8; | |
1da177e4 LT |
1646 | |
1647 | printk (KERN_DEBUG "%s: Transmit timeout, status %2.2x %4.4x %4.4x " | |
1648 | "media %2.2x.\n", dev->name, RTL_R8 (ChipCmd), | |
1649 | RTL_R16(IntrStatus), RTL_R16(IntrMask), RTL_R8(MediaStatus)); | |
1650 | /* Emit info to figure out what went wrong. */ | |
1651 | printk (KERN_DEBUG "%s: Tx queue start entry %ld dirty entry %ld.\n", | |
1652 | dev->name, tp->cur_tx, tp->dirty_tx); | |
1653 | for (i = 0; i < NUM_TX_DESC; i++) | |
1654 | printk (KERN_DEBUG "%s: Tx descriptor %d is %8.8lx.%s\n", | |
1655 | dev->name, i, RTL_R32 (TxStatus0 + (i * 4)), | |
1656 | i == tp->dirty_tx % NUM_TX_DESC ? | |
1657 | " (queue head)" : ""); | |
1658 | ||
1659 | tp->xstats.tx_timeouts++; | |
1660 | ||
1661 | /* disable Tx ASAP, if not already */ | |
1662 | tmp8 = RTL_R8 (ChipCmd); | |
1663 | if (tmp8 & CmdTxEnb) | |
1664 | RTL_W8 (ChipCmd, CmdRxEnb); | |
1665 | ||
371e8bc2 | 1666 | spin_lock_bh(&tp->rx_lock); |
1da177e4 LT |
1667 | /* Disable interrupts by clearing the interrupt mask. */ |
1668 | RTL_W16 (IntrMask, 0x0000); | |
1669 | ||
1670 | /* Stop a shared interrupt from scavenging while we are. */ | |
371e8bc2 | 1671 | spin_lock_irq(&tp->lock); |
1da177e4 | 1672 | rtl8139_tx_clear (tp); |
371e8bc2 | 1673 | spin_unlock_irq(&tp->lock); |
1da177e4 LT |
1674 | |
1675 | /* ...and finally, reset everything */ | |
1676 | if (netif_running(dev)) { | |
1677 | rtl8139_hw_start (dev); | |
1678 | netif_wake_queue (dev); | |
1679 | } | |
371e8bc2 | 1680 | spin_unlock_bh(&tp->rx_lock); |
1da177e4 LT |
1681 | } |
1682 | ||
371e8bc2 FR |
1683 | static void rtl8139_tx_timeout (struct net_device *dev) |
1684 | { | |
1685 | struct rtl8139_private *tp = netdev_priv(dev); | |
1686 | ||
83cbb4d2 | 1687 | tp->watchdog_fired = 1; |
371e8bc2 | 1688 | if (!tp->have_thread) { |
83cbb4d2 | 1689 | INIT_DELAYED_WORK(&tp->thread, rtl8139_thread); |
371e8bc2 | 1690 | schedule_delayed_work(&tp->thread, next_tick); |
83cbb4d2 | 1691 | } |
371e8bc2 | 1692 | } |
1da177e4 LT |
1693 | |
1694 | static int rtl8139_start_xmit (struct sk_buff *skb, struct net_device *dev) | |
1695 | { | |
1696 | struct rtl8139_private *tp = netdev_priv(dev); | |
22f714b6 | 1697 | void __iomem *ioaddr = tp->mmio_addr; |
1da177e4 LT |
1698 | unsigned int entry; |
1699 | unsigned int len = skb->len; | |
bce305f4 | 1700 | unsigned long flags; |
1da177e4 LT |
1701 | |
1702 | /* Calculate the next Tx descriptor entry. */ | |
1703 | entry = tp->cur_tx % NUM_TX_DESC; | |
1704 | ||
1705 | /* Note: the chip doesn't have auto-pad! */ | |
1706 | if (likely(len < TX_BUF_SIZE)) { | |
1707 | if (len < ETH_ZLEN) | |
1708 | memset(tp->tx_buf[entry], 0, ETH_ZLEN); | |
1709 | skb_copy_and_csum_dev(skb, tp->tx_buf[entry]); | |
1710 | dev_kfree_skb(skb); | |
1711 | } else { | |
1712 | dev_kfree_skb(skb); | |
e1eac92e | 1713 | dev->stats.tx_dropped++; |
1da177e4 LT |
1714 | return 0; |
1715 | } | |
1716 | ||
bce305f4 | 1717 | spin_lock_irqsave(&tp->lock, flags); |
1da177e4 LT |
1718 | RTL_W32_F (TxStatus0 + (entry * sizeof (u32)), |
1719 | tp->tx_flag | max(len, (unsigned int)ETH_ZLEN)); | |
1720 | ||
1721 | dev->trans_start = jiffies; | |
1722 | ||
1723 | tp->cur_tx++; | |
1724 | wmb(); | |
1725 | ||
1726 | if ((tp->cur_tx - NUM_TX_DESC) == tp->dirty_tx) | |
1727 | netif_stop_queue (dev); | |
bce305f4 | 1728 | spin_unlock_irqrestore(&tp->lock, flags); |
1da177e4 LT |
1729 | |
1730 | if (netif_msg_tx_queued(tp)) | |
1731 | printk (KERN_DEBUG "%s: Queued Tx packet size %u to slot %d.\n", | |
1732 | dev->name, len, entry); | |
1733 | ||
1734 | return 0; | |
1735 | } | |
1736 | ||
1737 | ||
1738 | static void rtl8139_tx_interrupt (struct net_device *dev, | |
1739 | struct rtl8139_private *tp, | |
22f714b6 | 1740 | void __iomem *ioaddr) |
1da177e4 LT |
1741 | { |
1742 | unsigned long dirty_tx, tx_left; | |
1743 | ||
1744 | assert (dev != NULL); | |
1745 | assert (ioaddr != NULL); | |
1746 | ||
1747 | dirty_tx = tp->dirty_tx; | |
1748 | tx_left = tp->cur_tx - dirty_tx; | |
1749 | while (tx_left > 0) { | |
1750 | int entry = dirty_tx % NUM_TX_DESC; | |
1751 | int txstatus; | |
1752 | ||
1753 | txstatus = RTL_R32 (TxStatus0 + (entry * sizeof (u32))); | |
1754 | ||
1755 | if (!(txstatus & (TxStatOK | TxUnderrun | TxAborted))) | |
1756 | break; /* It still hasn't been Txed */ | |
1757 | ||
1758 | /* Note: TxCarrierLost is always asserted at 100mbps. */ | |
1759 | if (txstatus & (TxOutOfWindow | TxAborted)) { | |
1760 | /* There was an major error, log it. */ | |
1761 | if (netif_msg_tx_err(tp)) | |
1762 | printk(KERN_DEBUG "%s: Transmit error, Tx status %8.8x.\n", | |
1763 | dev->name, txstatus); | |
e1eac92e | 1764 | dev->stats.tx_errors++; |
1da177e4 | 1765 | if (txstatus & TxAborted) { |
e1eac92e | 1766 | dev->stats.tx_aborted_errors++; |
1da177e4 LT |
1767 | RTL_W32 (TxConfig, TxClearAbt); |
1768 | RTL_W16 (IntrStatus, TxErr); | |
1769 | wmb(); | |
1770 | } | |
1771 | if (txstatus & TxCarrierLost) | |
e1eac92e | 1772 | dev->stats.tx_carrier_errors++; |
1da177e4 | 1773 | if (txstatus & TxOutOfWindow) |
e1eac92e | 1774 | dev->stats.tx_window_errors++; |
1da177e4 LT |
1775 | } else { |
1776 | if (txstatus & TxUnderrun) { | |
1777 | /* Add 64 to the Tx FIFO threshold. */ | |
1778 | if (tp->tx_flag < 0x00300000) | |
1779 | tp->tx_flag += 0x00020000; | |
e1eac92e | 1780 | dev->stats.tx_fifo_errors++; |
1da177e4 | 1781 | } |
e1eac92e PZ |
1782 | dev->stats.collisions += (txstatus >> 24) & 15; |
1783 | dev->stats.tx_bytes += txstatus & 0x7ff; | |
1784 | dev->stats.tx_packets++; | |
1da177e4 LT |
1785 | } |
1786 | ||
1787 | dirty_tx++; | |
1788 | tx_left--; | |
1789 | } | |
1790 | ||
1791 | #ifndef RTL8139_NDEBUG | |
1792 | if (tp->cur_tx - dirty_tx > NUM_TX_DESC) { | |
1793 | printk (KERN_ERR "%s: Out-of-sync dirty pointer, %ld vs. %ld.\n", | |
1794 | dev->name, dirty_tx, tp->cur_tx); | |
1795 | dirty_tx += NUM_TX_DESC; | |
1796 | } | |
1797 | #endif /* RTL8139_NDEBUG */ | |
1798 | ||
1799 | /* only wake the queue if we did work, and the queue is stopped */ | |
1800 | if (tp->dirty_tx != dirty_tx) { | |
1801 | tp->dirty_tx = dirty_tx; | |
1802 | mb(); | |
1803 | netif_wake_queue (dev); | |
1804 | } | |
1805 | } | |
1806 | ||
1807 | ||
1808 | /* TODO: clean this up! Rx reset need not be this intensive */ | |
1809 | static void rtl8139_rx_err (u32 rx_status, struct net_device *dev, | |
22f714b6 | 1810 | struct rtl8139_private *tp, void __iomem *ioaddr) |
1da177e4 LT |
1811 | { |
1812 | u8 tmp8; | |
1813 | #ifdef CONFIG_8139_OLD_RX_RESET | |
1814 | int tmp_work; | |
1815 | #endif | |
1816 | ||
f3b197ac | 1817 | if (netif_msg_rx_err (tp)) |
1da177e4 LT |
1818 | printk(KERN_DEBUG "%s: Ethernet frame had errors, status %8.8x.\n", |
1819 | dev->name, rx_status); | |
e1eac92e | 1820 | dev->stats.rx_errors++; |
1da177e4 LT |
1821 | if (!(rx_status & RxStatusOK)) { |
1822 | if (rx_status & RxTooLong) { | |
1823 | DPRINTK ("%s: Oversized Ethernet frame, status %4.4x!\n", | |
1824 | dev->name, rx_status); | |
1825 | /* A.C.: The chip hangs here. */ | |
1826 | } | |
1827 | if (rx_status & (RxBadSymbol | RxBadAlign)) | |
e1eac92e | 1828 | dev->stats.rx_frame_errors++; |
1da177e4 | 1829 | if (rx_status & (RxRunt | RxTooLong)) |
e1eac92e | 1830 | dev->stats.rx_length_errors++; |
1da177e4 | 1831 | if (rx_status & RxCRCErr) |
e1eac92e | 1832 | dev->stats.rx_crc_errors++; |
1da177e4 LT |
1833 | } else { |
1834 | tp->xstats.rx_lost_in_ring++; | |
1835 | } | |
1836 | ||
1837 | #ifndef CONFIG_8139_OLD_RX_RESET | |
1838 | tmp8 = RTL_R8 (ChipCmd); | |
1839 | RTL_W8 (ChipCmd, tmp8 & ~CmdRxEnb); | |
1840 | RTL_W8 (ChipCmd, tmp8); | |
1841 | RTL_W32 (RxConfig, tp->rx_config); | |
1842 | tp->cur_rx = 0; | |
1843 | #else | |
1844 | /* Reset the receiver, based on RealTek recommendation. (Bug?) */ | |
1845 | ||
1846 | /* disable receive */ | |
1847 | RTL_W8_F (ChipCmd, CmdTxEnb); | |
1848 | tmp_work = 200; | |
1849 | while (--tmp_work > 0) { | |
1850 | udelay(1); | |
1851 | tmp8 = RTL_R8 (ChipCmd); | |
1852 | if (!(tmp8 & CmdRxEnb)) | |
1853 | break; | |
1854 | } | |
1855 | if (tmp_work <= 0) | |
1856 | printk (KERN_WARNING PFX "rx stop wait too long\n"); | |
1857 | /* restart receive */ | |
1858 | tmp_work = 200; | |
1859 | while (--tmp_work > 0) { | |
1860 | RTL_W8_F (ChipCmd, CmdRxEnb | CmdTxEnb); | |
1861 | udelay(1); | |
1862 | tmp8 = RTL_R8 (ChipCmd); | |
1863 | if ((tmp8 & CmdRxEnb) && (tmp8 & CmdTxEnb)) | |
1864 | break; | |
1865 | } | |
1866 | if (tmp_work <= 0) | |
1867 | printk (KERN_WARNING PFX "tx/rx enable wait too long\n"); | |
1868 | ||
1869 | /* and reinitialize all rx related registers */ | |
1870 | RTL_W8_F (Cfg9346, Cfg9346_Unlock); | |
1871 | /* Must enable Tx/Rx before setting transfer thresholds! */ | |
1872 | RTL_W8 (ChipCmd, CmdRxEnb | CmdTxEnb); | |
1873 | ||
1874 | tp->rx_config = rtl8139_rx_config | AcceptBroadcast | AcceptMyPhys; | |
1875 | RTL_W32 (RxConfig, tp->rx_config); | |
1876 | tp->cur_rx = 0; | |
1877 | ||
1878 | DPRINTK("init buffer addresses\n"); | |
1879 | ||
1880 | /* Lock Config[01234] and BMCR register writes */ | |
1881 | RTL_W8 (Cfg9346, Cfg9346_Lock); | |
1882 | ||
1883 | /* init Rx ring buffer DMA address */ | |
1884 | RTL_W32_F (RxBuf, tp->rx_ring_dma); | |
1885 | ||
1886 | /* A.C.: Reset the multicast list. */ | |
1887 | __set_rx_mode (dev); | |
1888 | #endif | |
1889 | } | |
1890 | ||
1891 | #if RX_BUF_IDX == 3 | |
a9879c4f | 1892 | static inline void wrap_copy(struct sk_buff *skb, const unsigned char *ring, |
1da177e4 LT |
1893 | u32 offset, unsigned int size) |
1894 | { | |
1895 | u32 left = RX_BUF_LEN - offset; | |
1896 | ||
1897 | if (size > left) { | |
27d7ff46 ACM |
1898 | skb_copy_to_linear_data(skb, ring + offset, left); |
1899 | skb_copy_to_linear_data_offset(skb, left, ring, size - left); | |
1da177e4 | 1900 | } else |
27d7ff46 | 1901 | skb_copy_to_linear_data(skb, ring + offset, size); |
1da177e4 LT |
1902 | } |
1903 | #endif | |
1904 | ||
1905 | static void rtl8139_isr_ack(struct rtl8139_private *tp) | |
1906 | { | |
22f714b6 | 1907 | void __iomem *ioaddr = tp->mmio_addr; |
1da177e4 LT |
1908 | u16 status; |
1909 | ||
1910 | status = RTL_R16 (IntrStatus) & RxAckBits; | |
1911 | ||
1912 | /* Clear out errors and receive interrupts */ | |
1913 | if (likely(status != 0)) { | |
1914 | if (unlikely(status & (RxFIFOOver | RxOverflow))) { | |
e1eac92e | 1915 | tp->dev->stats.rx_errors++; |
1da177e4 | 1916 | if (status & RxFIFOOver) |
e1eac92e | 1917 | tp->dev->stats.rx_fifo_errors++; |
1da177e4 LT |
1918 | } |
1919 | RTL_W16_F (IntrStatus, RxAckBits); | |
1920 | } | |
1921 | } | |
1922 | ||
1923 | static int rtl8139_rx(struct net_device *dev, struct rtl8139_private *tp, | |
1924 | int budget) | |
1925 | { | |
22f714b6 | 1926 | void __iomem *ioaddr = tp->mmio_addr; |
1da177e4 LT |
1927 | int received = 0; |
1928 | unsigned char *rx_ring = tp->rx_ring; | |
1929 | unsigned int cur_rx = tp->cur_rx; | |
1930 | unsigned int rx_size = 0; | |
1931 | ||
1932 | DPRINTK ("%s: In rtl8139_rx(), current %4.4x BufAddr %4.4x," | |
1933 | " free to %4.4x, Cmd %2.2x.\n", dev->name, (u16)cur_rx, | |
1934 | RTL_R16 (RxBufAddr), | |
1935 | RTL_R16 (RxBufPtr), RTL_R8 (ChipCmd)); | |
1936 | ||
f3b197ac | 1937 | while (netif_running(dev) && received < budget |
1da177e4 LT |
1938 | && (RTL_R8 (ChipCmd) & RxBufEmpty) == 0) { |
1939 | u32 ring_offset = cur_rx % RX_BUF_LEN; | |
1940 | u32 rx_status; | |
1941 | unsigned int pkt_size; | |
1942 | struct sk_buff *skb; | |
1943 | ||
1944 | rmb(); | |
1945 | ||
1946 | /* read size+status of next frame from DMA ring buffer */ | |
eca1ad82 | 1947 | rx_status = le32_to_cpu (*(__le32 *) (rx_ring + ring_offset)); |
1da177e4 LT |
1948 | rx_size = rx_status >> 16; |
1949 | pkt_size = rx_size - 4; | |
1950 | ||
1951 | if (netif_msg_rx_status(tp)) | |
1952 | printk(KERN_DEBUG "%s: rtl8139_rx() status %4.4x, size %4.4x," | |
1953 | " cur %4.4x.\n", dev->name, rx_status, | |
1954 | rx_size, cur_rx); | |
1955 | #if RTL8139_DEBUG > 2 | |
1956 | { | |
1957 | int i; | |
1958 | DPRINTK ("%s: Frame contents ", dev->name); | |
1959 | for (i = 0; i < 70; i++) | |
1960 | printk (" %2.2x", | |
1961 | rx_ring[ring_offset + i]); | |
1962 | printk (".\n"); | |
1963 | } | |
1964 | #endif | |
1965 | ||
1966 | /* Packet copy from FIFO still in progress. | |
1967 | * Theoretically, this should never happen | |
1968 | * since EarlyRx is disabled. | |
1969 | */ | |
1970 | if (unlikely(rx_size == 0xfff0)) { | |
1971 | if (!tp->fifo_copy_timeout) | |
1972 | tp->fifo_copy_timeout = jiffies + 2; | |
1973 | else if (time_after(jiffies, tp->fifo_copy_timeout)) { | |
1974 | DPRINTK ("%s: hung FIFO. Reset.", dev->name); | |
1975 | rx_size = 0; | |
1976 | goto no_early_rx; | |
1977 | } | |
1978 | if (netif_msg_intr(tp)) { | |
1979 | printk(KERN_DEBUG "%s: fifo copy in progress.", | |
1980 | dev->name); | |
1981 | } | |
1982 | tp->xstats.early_rx++; | |
1983 | break; | |
1984 | } | |
1985 | ||
1986 | no_early_rx: | |
1987 | tp->fifo_copy_timeout = 0; | |
1988 | ||
1989 | /* If Rx err or invalid rx_size/rx_status received | |
1990 | * (which happens if we get lost in the ring), | |
1991 | * Rx process gets reset, so we abort any further | |
1992 | * Rx processing. | |
1993 | */ | |
1994 | if (unlikely((rx_size > (MAX_ETH_FRAME_SIZE+4)) || | |
1995 | (rx_size < 8) || | |
1996 | (!(rx_status & RxStatusOK)))) { | |
1997 | rtl8139_rx_err (rx_status, dev, tp, ioaddr); | |
1998 | received = -1; | |
1999 | goto out; | |
2000 | } | |
2001 | ||
2002 | /* Malloc up new buffer, compatible with net-2e. */ | |
2003 | /* Omit the four octet CRC from the length. */ | |
2004 | ||
2005 | skb = dev_alloc_skb (pkt_size + 2); | |
2006 | if (likely(skb)) { | |
1da177e4 LT |
2007 | skb_reserve (skb, 2); /* 16 byte align the IP fields. */ |
2008 | #if RX_BUF_IDX == 3 | |
2009 | wrap_copy(skb, rx_ring, ring_offset+4, pkt_size); | |
2010 | #else | |
8c7b7faa | 2011 | skb_copy_to_linear_data (skb, &rx_ring[ring_offset + 4], pkt_size); |
1da177e4 LT |
2012 | #endif |
2013 | skb_put (skb, pkt_size); | |
2014 | ||
2015 | skb->protocol = eth_type_trans (skb, dev); | |
2016 | ||
2017 | dev->last_rx = jiffies; | |
e1eac92e PZ |
2018 | dev->stats.rx_bytes += pkt_size; |
2019 | dev->stats.rx_packets++; | |
1da177e4 LT |
2020 | |
2021 | netif_receive_skb (skb); | |
2022 | } else { | |
f3b197ac | 2023 | if (net_ratelimit()) |
1da177e4 LT |
2024 | printk (KERN_WARNING |
2025 | "%s: Memory squeeze, dropping packet.\n", | |
2026 | dev->name); | |
e1eac92e | 2027 | dev->stats.rx_dropped++; |
1da177e4 LT |
2028 | } |
2029 | received++; | |
2030 | ||
2031 | cur_rx = (cur_rx + rx_size + 4 + 3) & ~3; | |
2032 | RTL_W16 (RxBufPtr, (u16) (cur_rx - 16)); | |
2033 | ||
2034 | rtl8139_isr_ack(tp); | |
2035 | } | |
2036 | ||
2037 | if (unlikely(!received || rx_size == 0xfff0)) | |
2038 | rtl8139_isr_ack(tp); | |
2039 | ||
2040 | #if RTL8139_DEBUG > 1 | |
2041 | DPRINTK ("%s: Done rtl8139_rx(), current %4.4x BufAddr %4.4x," | |
2042 | " free to %4.4x, Cmd %2.2x.\n", dev->name, cur_rx, | |
2043 | RTL_R16 (RxBufAddr), | |
2044 | RTL_R16 (RxBufPtr), RTL_R8 (ChipCmd)); | |
2045 | #endif | |
2046 | ||
2047 | tp->cur_rx = cur_rx; | |
2048 | ||
2049 | /* | |
2050 | * The receive buffer should be mostly empty. | |
2051 | * Tell NAPI to reenable the Rx irq. | |
2052 | */ | |
2053 | if (tp->fifo_copy_timeout) | |
2054 | received = budget; | |
2055 | ||
2056 | out: | |
2057 | return received; | |
2058 | } | |
2059 | ||
2060 | ||
2061 | static void rtl8139_weird_interrupt (struct net_device *dev, | |
2062 | struct rtl8139_private *tp, | |
22f714b6 | 2063 | void __iomem *ioaddr, |
1da177e4 LT |
2064 | int status, int link_changed) |
2065 | { | |
2066 | DPRINTK ("%s: Abnormal interrupt, status %8.8x.\n", | |
2067 | dev->name, status); | |
2068 | ||
2069 | assert (dev != NULL); | |
2070 | assert (tp != NULL); | |
2071 | assert (ioaddr != NULL); | |
2072 | ||
2073 | /* Update the error count. */ | |
e1eac92e | 2074 | dev->stats.rx_missed_errors += RTL_R32 (RxMissed); |
1da177e4 LT |
2075 | RTL_W32 (RxMissed, 0); |
2076 | ||
2077 | if ((status & RxUnderrun) && link_changed && | |
2078 | (tp->drv_flags & HAS_LNK_CHNG)) { | |
2079 | rtl_check_media(dev, 0); | |
2080 | status &= ~RxUnderrun; | |
2081 | } | |
2082 | ||
2083 | if (status & (RxUnderrun | RxErr)) | |
e1eac92e | 2084 | dev->stats.rx_errors++; |
1da177e4 LT |
2085 | |
2086 | if (status & PCSTimeout) | |
e1eac92e | 2087 | dev->stats.rx_length_errors++; |
1da177e4 | 2088 | if (status & RxUnderrun) |
e1eac92e | 2089 | dev->stats.rx_fifo_errors++; |
1da177e4 LT |
2090 | if (status & PCIErr) { |
2091 | u16 pci_cmd_status; | |
2092 | pci_read_config_word (tp->pci_dev, PCI_STATUS, &pci_cmd_status); | |
2093 | pci_write_config_word (tp->pci_dev, PCI_STATUS, pci_cmd_status); | |
2094 | ||
2095 | printk (KERN_ERR "%s: PCI Bus error %4.4x.\n", | |
2096 | dev->name, pci_cmd_status); | |
2097 | } | |
2098 | } | |
2099 | ||
bea3348e | 2100 | static int rtl8139_poll(struct napi_struct *napi, int budget) |
1da177e4 | 2101 | { |
bea3348e SH |
2102 | struct rtl8139_private *tp = container_of(napi, struct rtl8139_private, napi); |
2103 | struct net_device *dev = tp->dev; | |
22f714b6 | 2104 | void __iomem *ioaddr = tp->mmio_addr; |
bea3348e | 2105 | int work_done; |
1da177e4 LT |
2106 | |
2107 | spin_lock(&tp->rx_lock); | |
bea3348e SH |
2108 | work_done = 0; |
2109 | if (likely(RTL_R16(IntrStatus) & RxAckBits)) | |
2110 | work_done += rtl8139_rx(dev, tp, budget); | |
1da177e4 | 2111 | |
bea3348e | 2112 | if (work_done < budget) { |
b57bd066 | 2113 | unsigned long flags; |
1da177e4 LT |
2114 | /* |
2115 | * Order is important since data can get interrupted | |
2116 | * again when we think we are done. | |
2117 | */ | |
bea3348e | 2118 | spin_lock_irqsave(&tp->lock, flags); |
1da177e4 | 2119 | RTL_W16_F(IntrMask, rtl8139_intr_mask); |
bea3348e SH |
2120 | __netif_rx_complete(dev, napi); |
2121 | spin_unlock_irqrestore(&tp->lock, flags); | |
1da177e4 LT |
2122 | } |
2123 | spin_unlock(&tp->rx_lock); | |
2124 | ||
bea3348e | 2125 | return work_done; |
1da177e4 LT |
2126 | } |
2127 | ||
2128 | /* The interrupt handler does all of the Rx thread work and cleans up | |
2129 | after the Tx thread. */ | |
7d12e780 | 2130 | static irqreturn_t rtl8139_interrupt (int irq, void *dev_instance) |
1da177e4 LT |
2131 | { |
2132 | struct net_device *dev = (struct net_device *) dev_instance; | |
2133 | struct rtl8139_private *tp = netdev_priv(dev); | |
22f714b6 | 2134 | void __iomem *ioaddr = tp->mmio_addr; |
1da177e4 LT |
2135 | u16 status, ackstat; |
2136 | int link_changed = 0; /* avoid bogus "uninit" warning */ | |
2137 | int handled = 0; | |
2138 | ||
2139 | spin_lock (&tp->lock); | |
2140 | status = RTL_R16 (IntrStatus); | |
2141 | ||
2142 | /* shared irq? */ | |
f3b197ac | 2143 | if (unlikely((status & rtl8139_intr_mask) == 0)) |
1da177e4 LT |
2144 | goto out; |
2145 | ||
2146 | handled = 1; | |
2147 | ||
2148 | /* h/w no longer present (hotplug?) or major error, bail */ | |
f3b197ac | 2149 | if (unlikely(status == 0xFFFF)) |
1da177e4 LT |
2150 | goto out; |
2151 | ||
2152 | /* close possible race's with dev_close */ | |
2153 | if (unlikely(!netif_running(dev))) { | |
2154 | RTL_W16 (IntrMask, 0); | |
2155 | goto out; | |
2156 | } | |
2157 | ||
2158 | /* Acknowledge all of the current interrupt sources ASAP, but | |
2159 | an first get an additional status bit from CSCR. */ | |
2160 | if (unlikely(status & RxUnderrun)) | |
2161 | link_changed = RTL_R16 (CSCR) & CSCR_LinkChangeBit; | |
2162 | ||
2163 | ackstat = status & ~(RxAckBits | TxErr); | |
2164 | if (ackstat) | |
2165 | RTL_W16 (IntrStatus, ackstat); | |
2166 | ||
2167 | /* Receive packets are processed by poll routine. | |
2168 | If not running start it now. */ | |
2169 | if (status & RxAckBits){ | |
bea3348e | 2170 | if (netif_rx_schedule_prep(dev, &tp->napi)) { |
1da177e4 | 2171 | RTL_W16_F (IntrMask, rtl8139_norx_intr_mask); |
bea3348e | 2172 | __netif_rx_schedule(dev, &tp->napi); |
1da177e4 LT |
2173 | } |
2174 | } | |
2175 | ||
2176 | /* Check uncommon events with one test. */ | |
2177 | if (unlikely(status & (PCIErr | PCSTimeout | RxUnderrun | RxErr))) | |
2178 | rtl8139_weird_interrupt (dev, tp, ioaddr, | |
2179 | status, link_changed); | |
2180 | ||
2181 | if (status & (TxOK | TxErr)) { | |
2182 | rtl8139_tx_interrupt (dev, tp, ioaddr); | |
2183 | if (status & TxErr) | |
2184 | RTL_W16 (IntrStatus, TxErr); | |
2185 | } | |
2186 | out: | |
2187 | spin_unlock (&tp->lock); | |
2188 | ||
2189 | DPRINTK ("%s: exiting interrupt, intr_status=%#4.4x.\n", | |
2190 | dev->name, RTL_R16 (IntrStatus)); | |
2191 | return IRQ_RETVAL(handled); | |
2192 | } | |
2193 | ||
2194 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
2195 | /* | |
2196 | * Polling receive - used by netconsole and other diagnostic tools | |
2197 | * to allow network i/o with interrupts disabled. | |
2198 | */ | |
2199 | static void rtl8139_poll_controller(struct net_device *dev) | |
2200 | { | |
2201 | disable_irq(dev->irq); | |
7d12e780 | 2202 | rtl8139_interrupt(dev->irq, dev); |
1da177e4 LT |
2203 | enable_irq(dev->irq); |
2204 | } | |
2205 | #endif | |
2206 | ||
2207 | static int rtl8139_close (struct net_device *dev) | |
2208 | { | |
2209 | struct rtl8139_private *tp = netdev_priv(dev); | |
22f714b6 | 2210 | void __iomem *ioaddr = tp->mmio_addr; |
1da177e4 LT |
2211 | unsigned long flags; |
2212 | ||
bea3348e SH |
2213 | netif_stop_queue(dev); |
2214 | napi_disable(&tp->napi); | |
1da177e4 | 2215 | |
1da177e4 LT |
2216 | if (netif_msg_ifdown(tp)) |
2217 | printk(KERN_DEBUG "%s: Shutting down ethercard, status was 0x%4.4x.\n", | |
2218 | dev->name, RTL_R16 (IntrStatus)); | |
2219 | ||
2220 | spin_lock_irqsave (&tp->lock, flags); | |
2221 | ||
2222 | /* Stop the chip's Tx and Rx DMA processes. */ | |
2223 | RTL_W8 (ChipCmd, 0); | |
2224 | ||
2225 | /* Disable interrupts by clearing the interrupt mask. */ | |
2226 | RTL_W16 (IntrMask, 0); | |
2227 | ||
2228 | /* Update the error counts. */ | |
e1eac92e | 2229 | dev->stats.rx_missed_errors += RTL_R32 (RxMissed); |
1da177e4 LT |
2230 | RTL_W32 (RxMissed, 0); |
2231 | ||
2232 | spin_unlock_irqrestore (&tp->lock, flags); | |
2233 | ||
1da177e4 LT |
2234 | free_irq (dev->irq, dev); |
2235 | ||
2236 | rtl8139_tx_clear (tp); | |
2237 | ||
6cc92cdd JG |
2238 | dma_free_coherent(&tp->pci_dev->dev, RX_BUF_TOT_LEN, |
2239 | tp->rx_ring, tp->rx_ring_dma); | |
2240 | dma_free_coherent(&tp->pci_dev->dev, TX_BUF_TOT_LEN, | |
2241 | tp->tx_bufs, tp->tx_bufs_dma); | |
1da177e4 LT |
2242 | tp->rx_ring = NULL; |
2243 | tp->tx_bufs = NULL; | |
2244 | ||
2245 | /* Green! Put the chip in low-power mode. */ | |
2246 | RTL_W8 (Cfg9346, Cfg9346_Unlock); | |
2247 | ||
2248 | if (rtl_chip_info[tp->chipset].flags & HasHltClk) | |
2249 | RTL_W8 (HltClk, 'H'); /* 'R' would leave the clock running. */ | |
2250 | ||
2251 | return 0; | |
2252 | } | |
2253 | ||
2254 | ||
2255 | /* Get the ethtool Wake-on-LAN settings. Assumes that wol points to | |
2256 | kernel memory, *wol has been initialized as {ETHTOOL_GWOL}, and | |
2257 | other threads or interrupts aren't messing with the 8139. */ | |
2258 | static void rtl8139_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol) | |
2259 | { | |
2260 | struct rtl8139_private *np = netdev_priv(dev); | |
22f714b6 | 2261 | void __iomem *ioaddr = np->mmio_addr; |
1da177e4 LT |
2262 | |
2263 | spin_lock_irq(&np->lock); | |
2264 | if (rtl_chip_info[np->chipset].flags & HasLWake) { | |
2265 | u8 cfg3 = RTL_R8 (Config3); | |
2266 | u8 cfg5 = RTL_R8 (Config5); | |
2267 | ||
2268 | wol->supported = WAKE_PHY | WAKE_MAGIC | |
2269 | | WAKE_UCAST | WAKE_MCAST | WAKE_BCAST; | |
2270 | ||
2271 | wol->wolopts = 0; | |
2272 | if (cfg3 & Cfg3_LinkUp) | |
2273 | wol->wolopts |= WAKE_PHY; | |
2274 | if (cfg3 & Cfg3_Magic) | |
2275 | wol->wolopts |= WAKE_MAGIC; | |
2276 | /* (KON)FIXME: See how netdev_set_wol() handles the | |
2277 | following constants. */ | |
2278 | if (cfg5 & Cfg5_UWF) | |
2279 | wol->wolopts |= WAKE_UCAST; | |
2280 | if (cfg5 & Cfg5_MWF) | |
2281 | wol->wolopts |= WAKE_MCAST; | |
2282 | if (cfg5 & Cfg5_BWF) | |
2283 | wol->wolopts |= WAKE_BCAST; | |
2284 | } | |
2285 | spin_unlock_irq(&np->lock); | |
2286 | } | |
2287 | ||
2288 | ||
2289 | /* Set the ethtool Wake-on-LAN settings. Return 0 or -errno. Assumes | |
2290 | that wol points to kernel memory and other threads or interrupts | |
2291 | aren't messing with the 8139. */ | |
2292 | static int rtl8139_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) | |
2293 | { | |
2294 | struct rtl8139_private *np = netdev_priv(dev); | |
22f714b6 | 2295 | void __iomem *ioaddr = np->mmio_addr; |
1da177e4 LT |
2296 | u32 support; |
2297 | u8 cfg3, cfg5; | |
2298 | ||
2299 | support = ((rtl_chip_info[np->chipset].flags & HasLWake) | |
2300 | ? (WAKE_PHY | WAKE_MAGIC | |
2301 | | WAKE_UCAST | WAKE_MCAST | WAKE_BCAST) | |
2302 | : 0); | |
2303 | if (wol->wolopts & ~support) | |
2304 | return -EINVAL; | |
2305 | ||
2306 | spin_lock_irq(&np->lock); | |
2307 | cfg3 = RTL_R8 (Config3) & ~(Cfg3_LinkUp | Cfg3_Magic); | |
2308 | if (wol->wolopts & WAKE_PHY) | |
2309 | cfg3 |= Cfg3_LinkUp; | |
2310 | if (wol->wolopts & WAKE_MAGIC) | |
2311 | cfg3 |= Cfg3_Magic; | |
2312 | RTL_W8 (Cfg9346, Cfg9346_Unlock); | |
2313 | RTL_W8 (Config3, cfg3); | |
2314 | RTL_W8 (Cfg9346, Cfg9346_Lock); | |
2315 | ||
2316 | cfg5 = RTL_R8 (Config5) & ~(Cfg5_UWF | Cfg5_MWF | Cfg5_BWF); | |
2317 | /* (KON)FIXME: These are untested. We may have to set the | |
2318 | CRC0, Wakeup0 and LSBCRC0 registers too, but I have no | |
2319 | documentation. */ | |
2320 | if (wol->wolopts & WAKE_UCAST) | |
2321 | cfg5 |= Cfg5_UWF; | |
2322 | if (wol->wolopts & WAKE_MCAST) | |
2323 | cfg5 |= Cfg5_MWF; | |
2324 | if (wol->wolopts & WAKE_BCAST) | |
2325 | cfg5 |= Cfg5_BWF; | |
2326 | RTL_W8 (Config5, cfg5); /* need not unlock via Cfg9346 */ | |
2327 | spin_unlock_irq(&np->lock); | |
2328 | ||
2329 | return 0; | |
2330 | } | |
2331 | ||
2332 | static void rtl8139_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) | |
2333 | { | |
2334 | struct rtl8139_private *np = netdev_priv(dev); | |
2335 | strcpy(info->driver, DRV_NAME); | |
2336 | strcpy(info->version, DRV_VERSION); | |
2337 | strcpy(info->bus_info, pci_name(np->pci_dev)); | |
2338 | info->regdump_len = np->regs_len; | |
2339 | } | |
2340 | ||
2341 | static int rtl8139_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) | |
2342 | { | |
2343 | struct rtl8139_private *np = netdev_priv(dev); | |
2344 | spin_lock_irq(&np->lock); | |
2345 | mii_ethtool_gset(&np->mii, cmd); | |
2346 | spin_unlock_irq(&np->lock); | |
2347 | return 0; | |
2348 | } | |
2349 | ||
2350 | static int rtl8139_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) | |
2351 | { | |
2352 | struct rtl8139_private *np = netdev_priv(dev); | |
2353 | int rc; | |
2354 | spin_lock_irq(&np->lock); | |
2355 | rc = mii_ethtool_sset(&np->mii, cmd); | |
2356 | spin_unlock_irq(&np->lock); | |
2357 | return rc; | |
2358 | } | |
2359 | ||
2360 | static int rtl8139_nway_reset(struct net_device *dev) | |
2361 | { | |
2362 | struct rtl8139_private *np = netdev_priv(dev); | |
2363 | return mii_nway_restart(&np->mii); | |
2364 | } | |
2365 | ||
2366 | static u32 rtl8139_get_link(struct net_device *dev) | |
2367 | { | |
2368 | struct rtl8139_private *np = netdev_priv(dev); | |
2369 | return mii_link_ok(&np->mii); | |
2370 | } | |
2371 | ||
2372 | static u32 rtl8139_get_msglevel(struct net_device *dev) | |
2373 | { | |
2374 | struct rtl8139_private *np = netdev_priv(dev); | |
2375 | return np->msg_enable; | |
2376 | } | |
2377 | ||
2378 | static void rtl8139_set_msglevel(struct net_device *dev, u32 datum) | |
2379 | { | |
2380 | struct rtl8139_private *np = netdev_priv(dev); | |
2381 | np->msg_enable = datum; | |
2382 | } | |
2383 | ||
2384 | /* TODO: we are too slack to do reg dumping for pio, for now */ | |
2385 | #ifdef CONFIG_8139TOO_PIO | |
2386 | #define rtl8139_get_regs_len NULL | |
2387 | #define rtl8139_get_regs NULL | |
2388 | #else | |
2389 | static int rtl8139_get_regs_len(struct net_device *dev) | |
2390 | { | |
2391 | struct rtl8139_private *np = netdev_priv(dev); | |
2392 | return np->regs_len; | |
2393 | } | |
2394 | ||
2395 | static void rtl8139_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *regbuf) | |
2396 | { | |
2397 | struct rtl8139_private *np = netdev_priv(dev); | |
2398 | ||
2399 | regs->version = RTL_REGS_VER; | |
2400 | ||
2401 | spin_lock_irq(&np->lock); | |
2402 | memcpy_fromio(regbuf, np->mmio_addr, regs->len); | |
2403 | spin_unlock_irq(&np->lock); | |
2404 | } | |
2405 | #endif /* CONFIG_8139TOO_MMIO */ | |
2406 | ||
b9f2c044 | 2407 | static int rtl8139_get_sset_count(struct net_device *dev, int sset) |
1da177e4 | 2408 | { |
b9f2c044 JG |
2409 | switch (sset) { |
2410 | case ETH_SS_STATS: | |
2411 | return RTL_NUM_STATS; | |
2412 | default: | |
2413 | return -EOPNOTSUPP; | |
2414 | } | |
1da177e4 LT |
2415 | } |
2416 | ||
2417 | static void rtl8139_get_ethtool_stats(struct net_device *dev, struct ethtool_stats *stats, u64 *data) | |
2418 | { | |
2419 | struct rtl8139_private *np = netdev_priv(dev); | |
2420 | ||
2421 | data[0] = np->xstats.early_rx; | |
2422 | data[1] = np->xstats.tx_buf_mapped; | |
2423 | data[2] = np->xstats.tx_timeouts; | |
2424 | data[3] = np->xstats.rx_lost_in_ring; | |
2425 | } | |
2426 | ||
2427 | static void rtl8139_get_strings(struct net_device *dev, u32 stringset, u8 *data) | |
2428 | { | |
2429 | memcpy(data, ethtool_stats_keys, sizeof(ethtool_stats_keys)); | |
2430 | } | |
2431 | ||
7282d491 | 2432 | static const struct ethtool_ops rtl8139_ethtool_ops = { |
1da177e4 LT |
2433 | .get_drvinfo = rtl8139_get_drvinfo, |
2434 | .get_settings = rtl8139_get_settings, | |
2435 | .set_settings = rtl8139_set_settings, | |
2436 | .get_regs_len = rtl8139_get_regs_len, | |
2437 | .get_regs = rtl8139_get_regs, | |
2438 | .nway_reset = rtl8139_nway_reset, | |
2439 | .get_link = rtl8139_get_link, | |
2440 | .get_msglevel = rtl8139_get_msglevel, | |
2441 | .set_msglevel = rtl8139_set_msglevel, | |
2442 | .get_wol = rtl8139_get_wol, | |
2443 | .set_wol = rtl8139_set_wol, | |
2444 | .get_strings = rtl8139_get_strings, | |
b9f2c044 | 2445 | .get_sset_count = rtl8139_get_sset_count, |
1da177e4 LT |
2446 | .get_ethtool_stats = rtl8139_get_ethtool_stats, |
2447 | }; | |
2448 | ||
2449 | static int netdev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) | |
2450 | { | |
2451 | struct rtl8139_private *np = netdev_priv(dev); | |
2452 | int rc; | |
2453 | ||
2454 | if (!netif_running(dev)) | |
2455 | return -EINVAL; | |
2456 | ||
2457 | spin_lock_irq(&np->lock); | |
2458 | rc = generic_mii_ioctl(&np->mii, if_mii(rq), cmd, NULL); | |
2459 | spin_unlock_irq(&np->lock); | |
2460 | ||
2461 | return rc; | |
2462 | } | |
2463 | ||
2464 | ||
2465 | static struct net_device_stats *rtl8139_get_stats (struct net_device *dev) | |
2466 | { | |
2467 | struct rtl8139_private *tp = netdev_priv(dev); | |
22f714b6 | 2468 | void __iomem *ioaddr = tp->mmio_addr; |
1da177e4 LT |
2469 | unsigned long flags; |
2470 | ||
2471 | if (netif_running(dev)) { | |
2472 | spin_lock_irqsave (&tp->lock, flags); | |
e1eac92e | 2473 | dev->stats.rx_missed_errors += RTL_R32 (RxMissed); |
1da177e4 LT |
2474 | RTL_W32 (RxMissed, 0); |
2475 | spin_unlock_irqrestore (&tp->lock, flags); | |
2476 | } | |
2477 | ||
e1eac92e | 2478 | return &dev->stats; |
1da177e4 LT |
2479 | } |
2480 | ||
2481 | /* Set or clear the multicast filter for this adaptor. | |
2482 | This routine is not state sensitive and need not be SMP locked. */ | |
2483 | ||
2484 | static void __set_rx_mode (struct net_device *dev) | |
2485 | { | |
2486 | struct rtl8139_private *tp = netdev_priv(dev); | |
22f714b6 | 2487 | void __iomem *ioaddr = tp->mmio_addr; |
1da177e4 LT |
2488 | u32 mc_filter[2]; /* Multicast hash filter */ |
2489 | int i, rx_mode; | |
2490 | u32 tmp; | |
2491 | ||
2492 | DPRINTK ("%s: rtl8139_set_rx_mode(%4.4x) done -- Rx config %8.8lx.\n", | |
2493 | dev->name, dev->flags, RTL_R32 (RxConfig)); | |
2494 | ||
2495 | /* Note: do not reorder, GCC is clever about common statements. */ | |
2496 | if (dev->flags & IFF_PROMISC) { | |
1da177e4 LT |
2497 | rx_mode = |
2498 | AcceptBroadcast | AcceptMulticast | AcceptMyPhys | | |
2499 | AcceptAllPhys; | |
2500 | mc_filter[1] = mc_filter[0] = 0xffffffff; | |
2501 | } else if ((dev->mc_count > multicast_filter_limit) | |
2502 | || (dev->flags & IFF_ALLMULTI)) { | |
2503 | /* Too many to filter perfectly -- accept all multicasts. */ | |
2504 | rx_mode = AcceptBroadcast | AcceptMulticast | AcceptMyPhys; | |
2505 | mc_filter[1] = mc_filter[0] = 0xffffffff; | |
2506 | } else { | |
2507 | struct dev_mc_list *mclist; | |
2508 | rx_mode = AcceptBroadcast | AcceptMyPhys; | |
2509 | mc_filter[1] = mc_filter[0] = 0; | |
2510 | for (i = 0, mclist = dev->mc_list; mclist && i < dev->mc_count; | |
2511 | i++, mclist = mclist->next) { | |
2512 | int bit_nr = ether_crc(ETH_ALEN, mclist->dmi_addr) >> 26; | |
2513 | ||
2514 | mc_filter[bit_nr >> 5] |= 1 << (bit_nr & 31); | |
2515 | rx_mode |= AcceptMulticast; | |
2516 | } | |
2517 | } | |
2518 | ||
2519 | /* We can safely update without stopping the chip. */ | |
2520 | tmp = rtl8139_rx_config | rx_mode; | |
2521 | if (tp->rx_config != tmp) { | |
2522 | RTL_W32_F (RxConfig, tmp); | |
2523 | tp->rx_config = tmp; | |
2524 | } | |
2525 | RTL_W32_F (MAR0 + 0, mc_filter[0]); | |
2526 | RTL_W32_F (MAR0 + 4, mc_filter[1]); | |
2527 | } | |
2528 | ||
2529 | static void rtl8139_set_rx_mode (struct net_device *dev) | |
2530 | { | |
2531 | unsigned long flags; | |
2532 | struct rtl8139_private *tp = netdev_priv(dev); | |
2533 | ||
2534 | spin_lock_irqsave (&tp->lock, flags); | |
2535 | __set_rx_mode(dev); | |
2536 | spin_unlock_irqrestore (&tp->lock, flags); | |
2537 | } | |
2538 | ||
2539 | #ifdef CONFIG_PM | |
2540 | ||
2541 | static int rtl8139_suspend (struct pci_dev *pdev, pm_message_t state) | |
2542 | { | |
2543 | struct net_device *dev = pci_get_drvdata (pdev); | |
2544 | struct rtl8139_private *tp = netdev_priv(dev); | |
22f714b6 | 2545 | void __iomem *ioaddr = tp->mmio_addr; |
1da177e4 LT |
2546 | unsigned long flags; |
2547 | ||
2548 | pci_save_state (pdev); | |
2549 | ||
2550 | if (!netif_running (dev)) | |
2551 | return 0; | |
2552 | ||
2553 | netif_device_detach (dev); | |
2554 | ||
2555 | spin_lock_irqsave (&tp->lock, flags); | |
2556 | ||
2557 | /* Disable interrupts, stop Tx and Rx. */ | |
2558 | RTL_W16 (IntrMask, 0); | |
2559 | RTL_W8 (ChipCmd, 0); | |
2560 | ||
2561 | /* Update the error counts. */ | |
e1eac92e | 2562 | dev->stats.rx_missed_errors += RTL_R32 (RxMissed); |
1da177e4 LT |
2563 | RTL_W32 (RxMissed, 0); |
2564 | ||
2565 | spin_unlock_irqrestore (&tp->lock, flags); | |
2566 | ||
2567 | pci_set_power_state (pdev, PCI_D3hot); | |
2568 | ||
2569 | return 0; | |
2570 | } | |
2571 | ||
2572 | ||
2573 | static int rtl8139_resume (struct pci_dev *pdev) | |
2574 | { | |
2575 | struct net_device *dev = pci_get_drvdata (pdev); | |
2576 | ||
2577 | pci_restore_state (pdev); | |
2578 | if (!netif_running (dev)) | |
2579 | return 0; | |
2580 | pci_set_power_state (pdev, PCI_D0); | |
2581 | rtl8139_init_ring (dev); | |
2582 | rtl8139_hw_start (dev); | |
2583 | netif_device_attach (dev); | |
2584 | return 0; | |
2585 | } | |
2586 | ||
2587 | #endif /* CONFIG_PM */ | |
2588 | ||
2589 | ||
2590 | static struct pci_driver rtl8139_pci_driver = { | |
2591 | .name = DRV_NAME, | |
2592 | .id_table = rtl8139_pci_tbl, | |
2593 | .probe = rtl8139_init_one, | |
2594 | .remove = __devexit_p(rtl8139_remove_one), | |
2595 | #ifdef CONFIG_PM | |
2596 | .suspend = rtl8139_suspend, | |
2597 | .resume = rtl8139_resume, | |
2598 | #endif /* CONFIG_PM */ | |
2599 | }; | |
2600 | ||
2601 | ||
2602 | static int __init rtl8139_init_module (void) | |
2603 | { | |
2604 | /* when we're a module, we always print a version message, | |
2605 | * even if no 8139 board is found. | |
2606 | */ | |
2607 | #ifdef MODULE | |
2608 | printk (KERN_INFO RTL8139_DRIVER_NAME "\n"); | |
2609 | #endif | |
2610 | ||
29917620 | 2611 | return pci_register_driver(&rtl8139_pci_driver); |
1da177e4 LT |
2612 | } |
2613 | ||
2614 | ||
2615 | static void __exit rtl8139_cleanup_module (void) | |
2616 | { | |
2617 | pci_unregister_driver (&rtl8139_pci_driver); | |
2618 | } | |
2619 | ||
2620 | ||
2621 | module_init(rtl8139_init_module); | |
2622 | module_exit(rtl8139_cleanup_module); |