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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> | |
1da177e4 LT |
101 | #include <linux/netdevice.h> |
102 | #include <linux/etherdevice.h> | |
103 | #include <linux/rtnetlink.h> | |
104 | #include <linux/delay.h> | |
105 | #include <linux/ethtool.h> | |
106 | #include <linux/mii.h> | |
107 | #include <linux/completion.h> | |
108 | #include <linux/crc32.h> | |
a9879c4f MN |
109 | #include <linux/io.h> |
110 | #include <linux/uaccess.h> | |
1da177e4 LT |
111 | #include <asm/irq.h> |
112 | ||
113 | #define RTL8139_DRIVER_NAME DRV_NAME " Fast Ethernet driver " DRV_VERSION | |
114 | #define PFX DRV_NAME ": " | |
115 | ||
116 | /* Default Message level */ | |
117 | #define RTL8139_DEF_MSG_ENABLE (NETIF_MSG_DRV | \ | |
118 | NETIF_MSG_PROBE | \ | |
119 | NETIF_MSG_LINK) | |
120 | ||
121 | ||
44456d37 OH |
122 | /* define to 1, 2 or 3 to enable copious debugging info */ |
123 | #define RTL8139_DEBUG 0 | |
1da177e4 LT |
124 | |
125 | /* define to 1 to disable lightweight runtime debugging checks */ | |
126 | #undef RTL8139_NDEBUG | |
127 | ||
128 | ||
44456d37 | 129 | #if RTL8139_DEBUG |
1da177e4 | 130 | /* note: prints function name for you */ |
a9879c4f | 131 | # define DPRINTK(fmt, args...) printk(KERN_DEBUG "%s: " fmt, __func__ , ## args) |
1da177e4 LT |
132 | #else |
133 | # define DPRINTK(fmt, args...) | |
134 | #endif | |
135 | ||
136 | #ifdef RTL8139_NDEBUG | |
137 | # define assert(expr) do {} while (0) | |
138 | #else | |
139 | # define assert(expr) \ | |
140 | if(unlikely(!(expr))) { \ | |
141 | printk(KERN_ERR "Assertion failed! %s,%s,%s,line=%d\n", \ | |
a9879c4f | 142 | #expr, __FILE__, __func__, __LINE__); \ |
1da177e4 LT |
143 | } |
144 | #endif | |
145 | ||
146 | ||
147 | /* A few user-configurable values. */ | |
148 | /* media options */ | |
149 | #define MAX_UNITS 8 | |
150 | static int media[MAX_UNITS] = {-1, -1, -1, -1, -1, -1, -1, -1}; | |
151 | static int full_duplex[MAX_UNITS] = {-1, -1, -1, -1, -1, -1, -1, -1}; | |
152 | ||
eb581348 DJ |
153 | /* Whether to use MMIO or PIO. Default to MMIO. */ |
154 | #ifdef CONFIG_8139TOO_PIO | |
155 | static int use_io = 1; | |
156 | #else | |
157 | static int use_io = 0; | |
158 | #endif | |
159 | ||
1da177e4 LT |
160 | /* Maximum number of multicast addresses to filter (vs. Rx-all-multicast). |
161 | The RTL chips use a 64 element hash table based on the Ethernet CRC. */ | |
162 | static int multicast_filter_limit = 32; | |
163 | ||
164 | /* bitmapped message enable number */ | |
165 | static int debug = -1; | |
166 | ||
167 | /* | |
f3b197ac | 168 | * Receive ring size |
1da177e4 LT |
169 | * Warning: 64K ring has hardware issues and may lock up. |
170 | */ | |
171 | #if defined(CONFIG_SH_DREAMCAST) | |
2192f395 | 172 | #define RX_BUF_IDX 0 /* 8K ring */ |
1da177e4 LT |
173 | #else |
174 | #define RX_BUF_IDX 2 /* 32K ring */ | |
175 | #endif | |
176 | #define RX_BUF_LEN (8192 << RX_BUF_IDX) | |
177 | #define RX_BUF_PAD 16 | |
178 | #define RX_BUF_WRAP_PAD 2048 /* spare padding to handle lack of packet wrap */ | |
179 | ||
180 | #if RX_BUF_LEN == 65536 | |
181 | #define RX_BUF_TOT_LEN RX_BUF_LEN | |
182 | #else | |
183 | #define RX_BUF_TOT_LEN (RX_BUF_LEN + RX_BUF_PAD + RX_BUF_WRAP_PAD) | |
184 | #endif | |
185 | ||
186 | /* Number of Tx descriptor registers. */ | |
187 | #define NUM_TX_DESC 4 | |
188 | ||
189 | /* max supported ethernet frame size -- must be at least (dev->mtu+14+4).*/ | |
190 | #define MAX_ETH_FRAME_SIZE 1536 | |
191 | ||
192 | /* Size of the Tx bounce buffers -- must be at least (dev->mtu+14+4). */ | |
193 | #define TX_BUF_SIZE MAX_ETH_FRAME_SIZE | |
194 | #define TX_BUF_TOT_LEN (TX_BUF_SIZE * NUM_TX_DESC) | |
195 | ||
196 | /* PCI Tuning Parameters | |
197 | Threshold is bytes transferred to chip before transmission starts. */ | |
198 | #define TX_FIFO_THRESH 256 /* In bytes, rounded down to 32 byte units. */ | |
199 | ||
200 | /* The following settings are log_2(bytes)-4: 0 == 16 bytes .. 6==1024, 7==end of packet. */ | |
201 | #define RX_FIFO_THRESH 7 /* Rx buffer level before first PCI xfer. */ | |
202 | #define RX_DMA_BURST 7 /* Maximum PCI burst, '6' is 1024 */ | |
203 | #define TX_DMA_BURST 6 /* Maximum PCI burst, '6' is 1024 */ | |
204 | #define TX_RETRY 8 /* 0-15. retries = 16 + (TX_RETRY * 16) */ | |
205 | ||
206 | /* Operational parameters that usually are not changed. */ | |
207 | /* Time in jiffies before concluding the transmitter is hung. */ | |
208 | #define TX_TIMEOUT (6*HZ) | |
209 | ||
210 | ||
211 | enum { | |
212 | HAS_MII_XCVR = 0x010000, | |
213 | HAS_CHIP_XCVR = 0x020000, | |
214 | HAS_LNK_CHNG = 0x040000, | |
215 | }; | |
216 | ||
217 | #define RTL_NUM_STATS 4 /* number of ETHTOOL_GSTATS u64's */ | |
218 | #define RTL_REGS_VER 1 /* version of reg. data in ETHTOOL_GREGS */ | |
219 | #define RTL_MIN_IO_SIZE 0x80 | |
220 | #define RTL8139B_IO_SIZE 256 | |
221 | ||
222 | #define RTL8129_CAPS HAS_MII_XCVR | |
a9879c4f | 223 | #define RTL8139_CAPS (HAS_CHIP_XCVR|HAS_LNK_CHNG) |
1da177e4 LT |
224 | |
225 | typedef enum { | |
226 | RTL8139 = 0, | |
227 | RTL8129, | |
228 | } board_t; | |
229 | ||
230 | ||
231 | /* indexed by board_t, above */ | |
f71e1309 | 232 | static const struct { |
1da177e4 LT |
233 | const char *name; |
234 | u32 hw_flags; | |
235 | } board_info[] __devinitdata = { | |
236 | { "RealTek RTL8139", RTL8139_CAPS }, | |
237 | { "RealTek RTL8129", RTL8129_CAPS }, | |
238 | }; | |
239 | ||
240 | ||
241 | static struct pci_device_id rtl8139_pci_tbl[] = { | |
242 | {0x10ec, 0x8139, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, | |
243 | {0x10ec, 0x8138, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, | |
244 | {0x1113, 0x1211, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, | |
245 | {0x1500, 0x1360, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, | |
246 | {0x4033, 0x1360, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, | |
247 | {0x1186, 0x1300, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, | |
248 | {0x1186, 0x1340, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, | |
249 | {0x13d1, 0xab06, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, | |
250 | {0x1259, 0xa117, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, | |
251 | {0x1259, 0xa11e, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, | |
252 | {0x14ea, 0xab06, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, | |
253 | {0x14ea, 0xab07, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, | |
254 | {0x11db, 0x1234, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, | |
255 | {0x1432, 0x9130, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, | |
256 | {0x02ac, 0x1012, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, | |
257 | {0x018a, 0x0106, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, | |
258 | {0x126c, 0x1211, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, | |
259 | {0x1743, 0x8139, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, | |
f3b197ac | 260 | {0x021b, 0x8139, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
1da177e4 LT |
261 | |
262 | #ifdef CONFIG_SH_SECUREEDGE5410 | |
263 | /* Bogus 8139 silicon reports 8129 without external PROM :-( */ | |
264 | {0x10ec, 0x8129, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, | |
265 | #endif | |
266 | #ifdef CONFIG_8139TOO_8129 | |
267 | {0x10ec, 0x8129, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8129 }, | |
268 | #endif | |
269 | ||
270 | /* some crazy cards report invalid vendor ids like | |
271 | * 0x0001 here. The other ids are valid and constant, | |
272 | * so we simply don't match on the main vendor id. | |
273 | */ | |
274 | {PCI_ANY_ID, 0x8139, 0x10ec, 0x8139, 0, 0, RTL8139 }, | |
275 | {PCI_ANY_ID, 0x8139, 0x1186, 0x1300, 0, 0, RTL8139 }, | |
276 | {PCI_ANY_ID, 0x8139, 0x13d1, 0xab06, 0, 0, RTL8139 }, | |
277 | ||
278 | {0,} | |
279 | }; | |
280 | MODULE_DEVICE_TABLE (pci, rtl8139_pci_tbl); | |
281 | ||
282 | static struct { | |
283 | const char str[ETH_GSTRING_LEN]; | |
284 | } ethtool_stats_keys[] = { | |
285 | { "early_rx" }, | |
286 | { "tx_buf_mapped" }, | |
287 | { "tx_timeouts" }, | |
288 | { "rx_lost_in_ring" }, | |
289 | }; | |
290 | ||
291 | /* The rest of these values should never change. */ | |
292 | ||
293 | /* Symbolic offsets to registers. */ | |
294 | enum RTL8139_registers { | |
28006c65 JG |
295 | MAC0 = 0, /* Ethernet hardware address. */ |
296 | MAR0 = 8, /* Multicast filter. */ | |
297 | TxStatus0 = 0x10, /* Transmit status (Four 32bit registers). */ | |
298 | TxAddr0 = 0x20, /* Tx descriptors (also four 32bit). */ | |
299 | RxBuf = 0x30, | |
300 | ChipCmd = 0x37, | |
301 | RxBufPtr = 0x38, | |
302 | RxBufAddr = 0x3A, | |
303 | IntrMask = 0x3C, | |
304 | IntrStatus = 0x3E, | |
305 | TxConfig = 0x40, | |
306 | RxConfig = 0x44, | |
307 | Timer = 0x48, /* A general-purpose counter. */ | |
308 | RxMissed = 0x4C, /* 24 bits valid, write clears. */ | |
309 | Cfg9346 = 0x50, | |
310 | Config0 = 0x51, | |
311 | Config1 = 0x52, | |
da8de392 | 312 | TimerInt = 0x54, |
28006c65 JG |
313 | MediaStatus = 0x58, |
314 | Config3 = 0x59, | |
315 | Config4 = 0x5A, /* absent on RTL-8139A */ | |
316 | HltClk = 0x5B, | |
317 | MultiIntr = 0x5C, | |
318 | TxSummary = 0x60, | |
319 | BasicModeCtrl = 0x62, | |
320 | BasicModeStatus = 0x64, | |
321 | NWayAdvert = 0x66, | |
322 | NWayLPAR = 0x68, | |
323 | NWayExpansion = 0x6A, | |
1da177e4 | 324 | /* Undocumented registers, but required for proper operation. */ |
28006c65 JG |
325 | FIFOTMS = 0x70, /* FIFO Control and test. */ |
326 | CSCR = 0x74, /* Chip Status and Configuration Register. */ | |
327 | PARA78 = 0x78, | |
da8de392 | 328 | FlashReg = 0xD4, /* Communication with Flash ROM, four bytes. */ |
28006c65 JG |
329 | PARA7c = 0x7c, /* Magic transceiver parameter register. */ |
330 | Config5 = 0xD8, /* absent on RTL-8139A */ | |
1da177e4 LT |
331 | }; |
332 | ||
333 | enum ClearBitMasks { | |
28006c65 JG |
334 | MultiIntrClear = 0xF000, |
335 | ChipCmdClear = 0xE2, | |
336 | Config1Clear = (1<<7)|(1<<6)|(1<<3)|(1<<2)|(1<<1), | |
1da177e4 LT |
337 | }; |
338 | ||
339 | enum ChipCmdBits { | |
28006c65 JG |
340 | CmdReset = 0x10, |
341 | CmdRxEnb = 0x08, | |
342 | CmdTxEnb = 0x04, | |
343 | RxBufEmpty = 0x01, | |
1da177e4 LT |
344 | }; |
345 | ||
346 | /* Interrupt register bits, using my own meaningful names. */ | |
347 | enum IntrStatusBits { | |
28006c65 JG |
348 | PCIErr = 0x8000, |
349 | PCSTimeout = 0x4000, | |
350 | RxFIFOOver = 0x40, | |
351 | RxUnderrun = 0x20, | |
352 | RxOverflow = 0x10, | |
353 | TxErr = 0x08, | |
354 | TxOK = 0x04, | |
355 | RxErr = 0x02, | |
356 | RxOK = 0x01, | |
357 | ||
358 | RxAckBits = RxFIFOOver | RxOverflow | RxOK, | |
1da177e4 LT |
359 | }; |
360 | ||
361 | enum TxStatusBits { | |
28006c65 JG |
362 | TxHostOwns = 0x2000, |
363 | TxUnderrun = 0x4000, | |
364 | TxStatOK = 0x8000, | |
365 | TxOutOfWindow = 0x20000000, | |
366 | TxAborted = 0x40000000, | |
367 | TxCarrierLost = 0x80000000, | |
1da177e4 LT |
368 | }; |
369 | enum RxStatusBits { | |
28006c65 JG |
370 | RxMulticast = 0x8000, |
371 | RxPhysical = 0x4000, | |
372 | RxBroadcast = 0x2000, | |
373 | RxBadSymbol = 0x0020, | |
374 | RxRunt = 0x0010, | |
375 | RxTooLong = 0x0008, | |
376 | RxCRCErr = 0x0004, | |
377 | RxBadAlign = 0x0002, | |
378 | RxStatusOK = 0x0001, | |
1da177e4 LT |
379 | }; |
380 | ||
381 | /* Bits in RxConfig. */ | |
382 | enum rx_mode_bits { | |
28006c65 JG |
383 | AcceptErr = 0x20, |
384 | AcceptRunt = 0x10, | |
385 | AcceptBroadcast = 0x08, | |
386 | AcceptMulticast = 0x04, | |
387 | AcceptMyPhys = 0x02, | |
388 | AcceptAllPhys = 0x01, | |
1da177e4 LT |
389 | }; |
390 | ||
391 | /* Bits in TxConfig. */ | |
392 | enum tx_config_bits { | |
1da177e4 | 393 | /* Interframe Gap Time. Only TxIFG96 doesn't violate IEEE 802.3 */ |
28006c65 JG |
394 | TxIFGShift = 24, |
395 | TxIFG84 = (0 << TxIFGShift), /* 8.4us / 840ns (10 / 100Mbps) */ | |
396 | TxIFG88 = (1 << TxIFGShift), /* 8.8us / 880ns (10 / 100Mbps) */ | |
397 | TxIFG92 = (2 << TxIFGShift), /* 9.2us / 920ns (10 / 100Mbps) */ | |
398 | TxIFG96 = (3 << TxIFGShift), /* 9.6us / 960ns (10 / 100Mbps) */ | |
399 | ||
400 | TxLoopBack = (1 << 18) | (1 << 17), /* enable loopback test mode */ | |
401 | TxCRC = (1 << 16), /* DISABLE Tx pkt CRC append */ | |
402 | TxClearAbt = (1 << 0), /* Clear abort (WO) */ | |
403 | TxDMAShift = 8, /* DMA burst value (0-7) is shifted X many bits */ | |
404 | TxRetryShift = 4, /* TXRR value (0-15) is shifted X many bits */ | |
405 | ||
406 | TxVersionMask = 0x7C800000, /* mask out version bits 30-26, 23 */ | |
1da177e4 LT |
407 | }; |
408 | ||
409 | /* Bits in Config1 */ | |
410 | enum Config1Bits { | |
28006c65 JG |
411 | Cfg1_PM_Enable = 0x01, |
412 | Cfg1_VPD_Enable = 0x02, | |
413 | Cfg1_PIO = 0x04, | |
414 | Cfg1_MMIO = 0x08, | |
415 | LWAKE = 0x10, /* not on 8139, 8139A */ | |
1da177e4 | 416 | Cfg1_Driver_Load = 0x20, |
28006c65 JG |
417 | Cfg1_LED0 = 0x40, |
418 | Cfg1_LED1 = 0x80, | |
419 | SLEEP = (1 << 1), /* only on 8139, 8139A */ | |
420 | PWRDN = (1 << 0), /* only on 8139, 8139A */ | |
1da177e4 LT |
421 | }; |
422 | ||
423 | /* Bits in Config3 */ | |
424 | enum Config3Bits { | |
28006c65 JG |
425 | Cfg3_FBtBEn = (1 << 0), /* 1 = Fast Back to Back */ |
426 | Cfg3_FuncRegEn = (1 << 1), /* 1 = enable CardBus Function registers */ | |
427 | Cfg3_CLKRUN_En = (1 << 2), /* 1 = enable CLKRUN */ | |
428 | Cfg3_CardB_En = (1 << 3), /* 1 = enable CardBus registers */ | |
429 | Cfg3_LinkUp = (1 << 4), /* 1 = wake up on link up */ | |
430 | Cfg3_Magic = (1 << 5), /* 1 = wake up on Magic Packet (tm) */ | |
431 | Cfg3_PARM_En = (1 << 6), /* 0 = software can set twister parameters */ | |
432 | Cfg3_GNTSel = (1 << 7), /* 1 = delay 1 clock from PCI GNT signal */ | |
1da177e4 LT |
433 | }; |
434 | ||
435 | /* Bits in Config4 */ | |
436 | enum Config4Bits { | |
28006c65 | 437 | LWPTN = (1 << 2), /* not on 8139, 8139A */ |
1da177e4 LT |
438 | }; |
439 | ||
440 | /* Bits in Config5 */ | |
441 | enum Config5Bits { | |
28006c65 JG |
442 | Cfg5_PME_STS = (1 << 0), /* 1 = PCI reset resets PME_Status */ |
443 | Cfg5_LANWake = (1 << 1), /* 1 = enable LANWake signal */ | |
444 | Cfg5_LDPS = (1 << 2), /* 0 = save power when link is down */ | |
445 | Cfg5_FIFOAddrPtr= (1 << 3), /* Realtek internal SRAM testing */ | |
446 | Cfg5_UWF = (1 << 4), /* 1 = accept unicast wakeup frame */ | |
447 | Cfg5_MWF = (1 << 5), /* 1 = accept multicast wakeup frame */ | |
448 | Cfg5_BWF = (1 << 6), /* 1 = accept broadcast wakeup frame */ | |
1da177e4 LT |
449 | }; |
450 | ||
451 | enum RxConfigBits { | |
452 | /* rx fifo threshold */ | |
28006c65 JG |
453 | RxCfgFIFOShift = 13, |
454 | RxCfgFIFONone = (7 << RxCfgFIFOShift), | |
1da177e4 LT |
455 | |
456 | /* Max DMA burst */ | |
28006c65 | 457 | RxCfgDMAShift = 8, |
1da177e4 LT |
458 | RxCfgDMAUnlimited = (7 << RxCfgDMAShift), |
459 | ||
460 | /* rx ring buffer length */ | |
28006c65 JG |
461 | RxCfgRcv8K = 0, |
462 | RxCfgRcv16K = (1 << 11), | |
463 | RxCfgRcv32K = (1 << 12), | |
464 | RxCfgRcv64K = (1 << 11) | (1 << 12), | |
1da177e4 LT |
465 | |
466 | /* Disable packet wrap at end of Rx buffer. (not possible with 64k) */ | |
28006c65 | 467 | RxNoWrap = (1 << 7), |
1da177e4 LT |
468 | }; |
469 | ||
470 | /* Twister tuning parameters from RealTek. | |
471 | Completely undocumented, but required to tune bad links on some boards. */ | |
472 | enum CSCRBits { | |
28006c65 JG |
473 | CSCR_LinkOKBit = 0x0400, |
474 | CSCR_LinkChangeBit = 0x0800, | |
475 | CSCR_LinkStatusBits = 0x0f000, | |
476 | CSCR_LinkDownOffCmd = 0x003c0, | |
477 | CSCR_LinkDownCmd = 0x0f3c0, | |
1da177e4 LT |
478 | }; |
479 | ||
480 | enum Cfg9346Bits { | |
28006c65 JG |
481 | Cfg9346_Lock = 0x00, |
482 | Cfg9346_Unlock = 0xC0, | |
1da177e4 LT |
483 | }; |
484 | ||
485 | typedef enum { | |
28006c65 | 486 | CH_8139 = 0, |
1da177e4 LT |
487 | CH_8139_K, |
488 | CH_8139A, | |
489 | CH_8139A_G, | |
490 | CH_8139B, | |
491 | CH_8130, | |
492 | CH_8139C, | |
493 | CH_8100, | |
494 | CH_8100B_8139D, | |
495 | CH_8101, | |
496 | } chip_t; | |
497 | ||
498 | enum chip_flags { | |
28006c65 JG |
499 | HasHltClk = (1 << 0), |
500 | HasLWake = (1 << 1), | |
1da177e4 LT |
501 | }; |
502 | ||
503 | #define HW_REVID(b30, b29, b28, b27, b26, b23, b22) \ | |
504 | (b30<<30 | b29<<29 | b28<<28 | b27<<27 | b26<<26 | b23<<23 | b22<<22) | |
505 | #define HW_REVID_MASK HW_REVID(1, 1, 1, 1, 1, 1, 1) | |
506 | ||
507 | /* directly indexed by chip_t, above */ | |
3c6bee1d | 508 | static const struct { |
1da177e4 LT |
509 | const char *name; |
510 | u32 version; /* from RTL8139C/RTL8139D docs */ | |
511 | u32 flags; | |
512 | } rtl_chip_info[] = { | |
513 | { "RTL-8139", | |
514 | HW_REVID(1, 0, 0, 0, 0, 0, 0), | |
515 | HasHltClk, | |
516 | }, | |
517 | ||
518 | { "RTL-8139 rev K", | |
519 | HW_REVID(1, 1, 0, 0, 0, 0, 0), | |
520 | HasHltClk, | |
521 | }, | |
522 | ||
523 | { "RTL-8139A", | |
524 | HW_REVID(1, 1, 1, 0, 0, 0, 0), | |
525 | HasHltClk, /* XXX undocumented? */ | |
526 | }, | |
527 | ||
528 | { "RTL-8139A rev G", | |
529 | HW_REVID(1, 1, 1, 0, 0, 1, 0), | |
530 | HasHltClk, /* XXX undocumented? */ | |
531 | }, | |
532 | ||
533 | { "RTL-8139B", | |
534 | HW_REVID(1, 1, 1, 1, 0, 0, 0), | |
535 | HasLWake, | |
536 | }, | |
537 | ||
538 | { "RTL-8130", | |
539 | HW_REVID(1, 1, 1, 1, 1, 0, 0), | |
540 | HasLWake, | |
541 | }, | |
542 | ||
543 | { "RTL-8139C", | |
544 | HW_REVID(1, 1, 1, 0, 1, 0, 0), | |
545 | HasLWake, | |
546 | }, | |
547 | ||
548 | { "RTL-8100", | |
549 | HW_REVID(1, 1, 1, 1, 0, 1, 0), | |
550 | HasLWake, | |
551 | }, | |
552 | ||
553 | { "RTL-8100B/8139D", | |
554 | HW_REVID(1, 1, 1, 0, 1, 0, 1), | |
7645baec JL |
555 | HasHltClk /* XXX undocumented? */ |
556 | | HasLWake, | |
1da177e4 LT |
557 | }, |
558 | ||
559 | { "RTL-8101", | |
560 | HW_REVID(1, 1, 1, 0, 1, 1, 1), | |
561 | HasLWake, | |
562 | }, | |
563 | }; | |
564 | ||
565 | struct rtl_extra_stats { | |
566 | unsigned long early_rx; | |
567 | unsigned long tx_buf_mapped; | |
568 | unsigned long tx_timeouts; | |
569 | unsigned long rx_lost_in_ring; | |
570 | }; | |
571 | ||
572 | struct rtl8139_private { | |
28006c65 JG |
573 | void __iomem *mmio_addr; |
574 | int drv_flags; | |
575 | struct pci_dev *pci_dev; | |
576 | u32 msg_enable; | |
577 | struct napi_struct napi; | |
578 | struct net_device *dev; | |
28006c65 JG |
579 | |
580 | unsigned char *rx_ring; | |
581 | unsigned int cur_rx; /* RX buf index of next pkt */ | |
582 | dma_addr_t rx_ring_dma; | |
583 | ||
584 | unsigned int tx_flag; | |
585 | unsigned long cur_tx; | |
586 | unsigned long dirty_tx; | |
587 | unsigned char *tx_buf[NUM_TX_DESC]; /* Tx bounce buffers */ | |
588 | unsigned char *tx_bufs; /* Tx bounce buffer region. */ | |
589 | dma_addr_t tx_bufs_dma; | |
590 | ||
591 | signed char phys[4]; /* MII device addresses. */ | |
592 | ||
593 | /* Twister tune state. */ | |
594 | char twistie, twist_row, twist_col; | |
595 | ||
596 | unsigned int watchdog_fired : 1; | |
597 | unsigned int default_port : 4; /* Last dev->if_port value. */ | |
598 | unsigned int have_thread : 1; | |
599 | ||
600 | spinlock_t lock; | |
601 | spinlock_t rx_lock; | |
602 | ||
603 | chip_t chipset; | |
604 | u32 rx_config; | |
605 | struct rtl_extra_stats xstats; | |
606 | ||
607 | struct delayed_work thread; | |
608 | ||
609 | struct mii_if_info mii; | |
610 | unsigned int regs_len; | |
611 | unsigned long fifo_copy_timeout; | |
1da177e4 LT |
612 | }; |
613 | ||
614 | MODULE_AUTHOR ("Jeff Garzik <jgarzik@pobox.com>"); | |
615 | MODULE_DESCRIPTION ("RealTek RTL-8139 Fast Ethernet driver"); | |
616 | MODULE_LICENSE("GPL"); | |
617 | MODULE_VERSION(DRV_VERSION); | |
618 | ||
eb581348 DJ |
619 | module_param(use_io, int, 0); |
620 | MODULE_PARM_DESC(use_io, "Force use of I/O access mode. 0=MMIO 1=PIO"); | |
1da177e4 LT |
621 | module_param(multicast_filter_limit, int, 0); |
622 | module_param_array(media, int, NULL, 0); | |
623 | module_param_array(full_duplex, int, NULL, 0); | |
624 | module_param(debug, int, 0); | |
625 | MODULE_PARM_DESC (debug, "8139too bitmapped message enable number"); | |
626 | MODULE_PARM_DESC (multicast_filter_limit, "8139too maximum number of filtered multicast addresses"); | |
627 | MODULE_PARM_DESC (media, "8139too: Bits 4+9: force full duplex, bit 5: 100Mbps"); | |
628 | MODULE_PARM_DESC (full_duplex, "8139too: Force full duplex for board(s) (1)"); | |
629 | ||
22f714b6 | 630 | static int read_eeprom (void __iomem *ioaddr, int location, int addr_len); |
1da177e4 LT |
631 | static int rtl8139_open (struct net_device *dev); |
632 | static int mdio_read (struct net_device *dev, int phy_id, int location); | |
633 | static void mdio_write (struct net_device *dev, int phy_id, int location, | |
634 | int val); | |
a15e0384 | 635 | static void rtl8139_start_thread(struct rtl8139_private *tp); |
1da177e4 LT |
636 | static void rtl8139_tx_timeout (struct net_device *dev); |
637 | static void rtl8139_init_ring (struct net_device *dev); | |
638 | static int rtl8139_start_xmit (struct sk_buff *skb, | |
639 | struct net_device *dev); | |
1da177e4 LT |
640 | #ifdef CONFIG_NET_POLL_CONTROLLER |
641 | static void rtl8139_poll_controller(struct net_device *dev); | |
642 | #endif | |
bea3348e | 643 | static int rtl8139_poll(struct napi_struct *napi, int budget); |
7d12e780 | 644 | static irqreturn_t rtl8139_interrupt (int irq, void *dev_instance); |
1da177e4 LT |
645 | static int rtl8139_close (struct net_device *dev); |
646 | static int netdev_ioctl (struct net_device *dev, struct ifreq *rq, int cmd); | |
647 | static struct net_device_stats *rtl8139_get_stats (struct net_device *dev); | |
648 | static void rtl8139_set_rx_mode (struct net_device *dev); | |
649 | static void __set_rx_mode (struct net_device *dev); | |
650 | static void rtl8139_hw_start (struct net_device *dev); | |
c4028958 DH |
651 | static void rtl8139_thread (struct work_struct *work); |
652 | static void rtl8139_tx_timeout_task(struct work_struct *work); | |
7282d491 | 653 | static const struct ethtool_ops rtl8139_ethtool_ops; |
1da177e4 | 654 | |
1da177e4 LT |
655 | /* write MMIO register, with flush */ |
656 | /* Flush avoids rtl8139 bug w/ posted MMIO writes */ | |
22f714b6 PE |
657 | #define RTL_W8_F(reg, val8) do { iowrite8 ((val8), ioaddr + (reg)); ioread8 (ioaddr + (reg)); } while (0) |
658 | #define RTL_W16_F(reg, val16) do { iowrite16 ((val16), ioaddr + (reg)); ioread16 (ioaddr + (reg)); } while (0) | |
659 | #define RTL_W32_F(reg, val32) do { iowrite32 ((val32), ioaddr + (reg)); ioread32 (ioaddr + (reg)); } while (0) | |
1da177e4 | 660 | |
1da177e4 | 661 | /* write MMIO register */ |
22f714b6 PE |
662 | #define RTL_W8(reg, val8) iowrite8 ((val8), ioaddr + (reg)) |
663 | #define RTL_W16(reg, val16) iowrite16 ((val16), ioaddr + (reg)) | |
664 | #define RTL_W32(reg, val32) iowrite32 ((val32), ioaddr + (reg)) | |
1da177e4 | 665 | |
1da177e4 | 666 | /* read MMIO register */ |
22f714b6 PE |
667 | #define RTL_R8(reg) ioread8 (ioaddr + (reg)) |
668 | #define RTL_R16(reg) ioread16 (ioaddr + (reg)) | |
669 | #define RTL_R32(reg) ((unsigned long) ioread32 (ioaddr + (reg))) | |
1da177e4 LT |
670 | |
671 | ||
672 | static const u16 rtl8139_intr_mask = | |
673 | PCIErr | PCSTimeout | RxUnderrun | RxOverflow | RxFIFOOver | | |
674 | TxErr | TxOK | RxErr | RxOK; | |
675 | ||
676 | static const u16 rtl8139_norx_intr_mask = | |
677 | PCIErr | PCSTimeout | RxUnderrun | | |
678 | TxErr | TxOK | RxErr ; | |
679 | ||
680 | #if RX_BUF_IDX == 0 | |
681 | static const unsigned int rtl8139_rx_config = | |
682 | RxCfgRcv8K | RxNoWrap | | |
683 | (RX_FIFO_THRESH << RxCfgFIFOShift) | | |
684 | (RX_DMA_BURST << RxCfgDMAShift); | |
685 | #elif RX_BUF_IDX == 1 | |
686 | static const unsigned int rtl8139_rx_config = | |
687 | RxCfgRcv16K | RxNoWrap | | |
688 | (RX_FIFO_THRESH << RxCfgFIFOShift) | | |
689 | (RX_DMA_BURST << RxCfgDMAShift); | |
690 | #elif RX_BUF_IDX == 2 | |
691 | static const unsigned int rtl8139_rx_config = | |
692 | RxCfgRcv32K | RxNoWrap | | |
693 | (RX_FIFO_THRESH << RxCfgFIFOShift) | | |
694 | (RX_DMA_BURST << RxCfgDMAShift); | |
695 | #elif RX_BUF_IDX == 3 | |
696 | static const unsigned int rtl8139_rx_config = | |
697 | RxCfgRcv64K | | |
698 | (RX_FIFO_THRESH << RxCfgFIFOShift) | | |
699 | (RX_DMA_BURST << RxCfgDMAShift); | |
700 | #else | |
701 | #error "Invalid configuration for 8139_RXBUF_IDX" | |
702 | #endif | |
703 | ||
704 | static const unsigned int rtl8139_tx_config = | |
705 | TxIFG96 | (TX_DMA_BURST << TxDMAShift) | (TX_RETRY << TxRetryShift); | |
706 | ||
707 | static void __rtl8139_cleanup_dev (struct net_device *dev) | |
708 | { | |
709 | struct rtl8139_private *tp = netdev_priv(dev); | |
710 | struct pci_dev *pdev; | |
711 | ||
712 | assert (dev != NULL); | |
713 | assert (tp->pci_dev != NULL); | |
714 | pdev = tp->pci_dev; | |
715 | ||
1da177e4 | 716 | if (tp->mmio_addr) |
22f714b6 | 717 | pci_iounmap (pdev, tp->mmio_addr); |
1da177e4 LT |
718 | |
719 | /* it's ok to call this even if we have no regions to free */ | |
720 | pci_release_regions (pdev); | |
721 | ||
722 | free_netdev(dev); | |
723 | pci_set_drvdata (pdev, NULL); | |
724 | } | |
725 | ||
726 | ||
22f714b6 | 727 | static void rtl8139_chip_reset (void __iomem *ioaddr) |
1da177e4 LT |
728 | { |
729 | int i; | |
730 | ||
731 | /* Soft reset the chip. */ | |
732 | RTL_W8 (ChipCmd, CmdReset); | |
733 | ||
734 | /* Check that the chip has finished the reset. */ | |
735 | for (i = 1000; i > 0; i--) { | |
736 | barrier(); | |
737 | if ((RTL_R8 (ChipCmd) & CmdReset) == 0) | |
738 | break; | |
739 | udelay (10); | |
740 | } | |
741 | } | |
742 | ||
743 | ||
85920d43 | 744 | static __devinit struct net_device * rtl8139_init_board (struct pci_dev *pdev) |
1da177e4 | 745 | { |
22f714b6 | 746 | void __iomem *ioaddr; |
1da177e4 LT |
747 | struct net_device *dev; |
748 | struct rtl8139_private *tp; | |
749 | u8 tmp8; | |
750 | int rc, disable_dev_on_err = 0; | |
751 | unsigned int i; | |
752 | unsigned long pio_start, pio_end, pio_flags, pio_len; | |
753 | unsigned long mmio_start, mmio_end, mmio_flags, mmio_len; | |
754 | u32 version; | |
755 | ||
756 | assert (pdev != NULL); | |
757 | ||
1da177e4 LT |
758 | /* dev and priv zeroed in alloc_etherdev */ |
759 | dev = alloc_etherdev (sizeof (*tp)); | |
760 | if (dev == NULL) { | |
9b91cf9d | 761 | dev_err(&pdev->dev, "Unable to alloc new net device\n"); |
85920d43 | 762 | return ERR_PTR(-ENOMEM); |
1da177e4 | 763 | } |
1da177e4 LT |
764 | SET_NETDEV_DEV(dev, &pdev->dev); |
765 | ||
766 | tp = netdev_priv(dev); | |
767 | tp->pci_dev = pdev; | |
768 | ||
769 | /* enable device (incl. PCI PM wakeup and hotplug setup) */ | |
770 | rc = pci_enable_device (pdev); | |
771 | if (rc) | |
772 | goto err_out; | |
773 | ||
774 | pio_start = pci_resource_start (pdev, 0); | |
775 | pio_end = pci_resource_end (pdev, 0); | |
776 | pio_flags = pci_resource_flags (pdev, 0); | |
777 | pio_len = pci_resource_len (pdev, 0); | |
778 | ||
779 | mmio_start = pci_resource_start (pdev, 1); | |
780 | mmio_end = pci_resource_end (pdev, 1); | |
781 | mmio_flags = pci_resource_flags (pdev, 1); | |
782 | mmio_len = pci_resource_len (pdev, 1); | |
783 | ||
784 | /* set this immediately, we need to know before | |
785 | * we talk to the chip directly */ | |
786 | DPRINTK("PIO region size == 0x%02X\n", pio_len); | |
787 | DPRINTK("MMIO region size == 0x%02lX\n", mmio_len); | |
788 | ||
1a4dc68b | 789 | retry: |
eb581348 DJ |
790 | if (use_io) { |
791 | /* make sure PCI base addr 0 is PIO */ | |
792 | if (!(pio_flags & IORESOURCE_IO)) { | |
793 | dev_err(&pdev->dev, "region #0 not a PIO resource, aborting\n"); | |
794 | rc = -ENODEV; | |
795 | goto err_out; | |
796 | } | |
797 | /* check for weird/broken PCI region reporting */ | |
798 | if (pio_len < RTL_MIN_IO_SIZE) { | |
799 | dev_err(&pdev->dev, "Invalid PCI I/O region size(s), aborting\n"); | |
800 | rc = -ENODEV; | |
801 | goto err_out; | |
802 | } | |
803 | } else { | |
804 | /* make sure PCI base addr 1 is MMIO */ | |
805 | if (!(mmio_flags & IORESOURCE_MEM)) { | |
806 | dev_err(&pdev->dev, "region #1 not an MMIO resource, aborting\n"); | |
807 | rc = -ENODEV; | |
808 | goto err_out; | |
809 | } | |
810 | if (mmio_len < RTL_MIN_IO_SIZE) { | |
811 | dev_err(&pdev->dev, "Invalid PCI mem region size(s), aborting\n"); | |
812 | rc = -ENODEV; | |
813 | goto err_out; | |
814 | } | |
1da177e4 | 815 | } |
1da177e4 | 816 | |
2e8a538d | 817 | rc = pci_request_regions (pdev, DRV_NAME); |
1da177e4 LT |
818 | if (rc) |
819 | goto err_out; | |
820 | disable_dev_on_err = 1; | |
821 | ||
822 | /* enable PCI bus-mastering */ | |
823 | pci_set_master (pdev); | |
824 | ||
eb581348 DJ |
825 | if (use_io) { |
826 | ioaddr = pci_iomap(pdev, 0, 0); | |
827 | if (!ioaddr) { | |
828 | dev_err(&pdev->dev, "cannot map PIO, aborting\n"); | |
829 | rc = -EIO; | |
830 | goto err_out; | |
831 | } | |
832 | dev->base_addr = pio_start; | |
833 | tp->regs_len = pio_len; | |
834 | } else { | |
835 | /* ioremap MMIO region */ | |
836 | ioaddr = pci_iomap(pdev, 1, 0); | |
837 | if (ioaddr == NULL) { | |
1a4dc68b DJ |
838 | dev_err(&pdev->dev, "cannot remap MMIO, trying PIO\n"); |
839 | pci_release_regions(pdev); | |
840 | use_io = 1; | |
841 | goto retry; | |
eb581348 DJ |
842 | } |
843 | dev->base_addr = (long) ioaddr; | |
844 | tp->regs_len = mmio_len; | |
1da177e4 | 845 | } |
1da177e4 | 846 | tp->mmio_addr = ioaddr; |
1da177e4 LT |
847 | |
848 | /* Bring old chips out of low-power mode. */ | |
849 | RTL_W8 (HltClk, 'R'); | |
850 | ||
851 | /* check for missing/broken hardware */ | |
852 | if (RTL_R32 (TxConfig) == 0xFFFFFFFF) { | |
9b91cf9d | 853 | dev_err(&pdev->dev, "Chip not responding, ignoring board\n"); |
1da177e4 LT |
854 | rc = -EIO; |
855 | goto err_out; | |
856 | } | |
857 | ||
858 | /* identify chip attached to board */ | |
859 | version = RTL_R32 (TxConfig) & HW_REVID_MASK; | |
860 | for (i = 0; i < ARRAY_SIZE (rtl_chip_info); i++) | |
861 | if (version == rtl_chip_info[i].version) { | |
862 | tp->chipset = i; | |
863 | goto match; | |
864 | } | |
865 | ||
866 | /* if unknown chip, assume array element #0, original RTL-8139 in this case */ | |
2e8a538d JG |
867 | dev_printk (KERN_DEBUG, &pdev->dev, |
868 | "unknown chip version, assuming RTL-8139\n"); | |
869 | dev_printk (KERN_DEBUG, &pdev->dev, | |
870 | "TxConfig = 0x%lx\n", RTL_R32 (TxConfig)); | |
1da177e4 LT |
871 | tp->chipset = 0; |
872 | ||
873 | match: | |
874 | DPRINTK ("chipset id (%d) == index %d, '%s'\n", | |
875 | version, i, rtl_chip_info[i].name); | |
876 | ||
877 | if (tp->chipset >= CH_8139B) { | |
878 | u8 new_tmp8 = tmp8 = RTL_R8 (Config1); | |
879 | DPRINTK("PCI PM wakeup\n"); | |
880 | if ((rtl_chip_info[tp->chipset].flags & HasLWake) && | |
881 | (tmp8 & LWAKE)) | |
882 | new_tmp8 &= ~LWAKE; | |
883 | new_tmp8 |= Cfg1_PM_Enable; | |
884 | if (new_tmp8 != tmp8) { | |
885 | RTL_W8 (Cfg9346, Cfg9346_Unlock); | |
886 | RTL_W8 (Config1, tmp8); | |
887 | RTL_W8 (Cfg9346, Cfg9346_Lock); | |
888 | } | |
889 | if (rtl_chip_info[tp->chipset].flags & HasLWake) { | |
890 | tmp8 = RTL_R8 (Config4); | |
891 | if (tmp8 & LWPTN) { | |
892 | RTL_W8 (Cfg9346, Cfg9346_Unlock); | |
893 | RTL_W8 (Config4, tmp8 & ~LWPTN); | |
894 | RTL_W8 (Cfg9346, Cfg9346_Lock); | |
895 | } | |
896 | } | |
897 | } else { | |
898 | DPRINTK("Old chip wakeup\n"); | |
899 | tmp8 = RTL_R8 (Config1); | |
900 | tmp8 &= ~(SLEEP | PWRDN); | |
901 | RTL_W8 (Config1, tmp8); | |
902 | } | |
903 | ||
904 | rtl8139_chip_reset (ioaddr); | |
905 | ||
85920d43 | 906 | return dev; |
1da177e4 LT |
907 | |
908 | err_out: | |
909 | __rtl8139_cleanup_dev (dev); | |
910 | if (disable_dev_on_err) | |
911 | pci_disable_device (pdev); | |
85920d43 | 912 | return ERR_PTR(rc); |
1da177e4 LT |
913 | } |
914 | ||
48dfcde4 SH |
915 | static const struct net_device_ops rtl8139_netdev_ops = { |
916 | .ndo_open = rtl8139_open, | |
917 | .ndo_stop = rtl8139_close, | |
918 | .ndo_get_stats = rtl8139_get_stats, | |
919 | .ndo_validate_addr = eth_validate_addr, | |
00829823 | 920 | .ndo_start_xmit = rtl8139_start_xmit, |
48dfcde4 SH |
921 | .ndo_set_multicast_list = rtl8139_set_rx_mode, |
922 | .ndo_do_ioctl = netdev_ioctl, | |
923 | .ndo_tx_timeout = rtl8139_tx_timeout, | |
924 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
925 | .ndo_poll_controller = rtl8139_poll_controller, | |
926 | #endif | |
927 | ||
928 | }; | |
1da177e4 LT |
929 | |
930 | static int __devinit rtl8139_init_one (struct pci_dev *pdev, | |
931 | const struct pci_device_id *ent) | |
932 | { | |
933 | struct net_device *dev = NULL; | |
934 | struct rtl8139_private *tp; | |
935 | int i, addr_len, option; | |
22f714b6 | 936 | void __iomem *ioaddr; |
1da177e4 | 937 | static int board_idx = -1; |
1da177e4 LT |
938 | |
939 | assert (pdev != NULL); | |
940 | assert (ent != NULL); | |
941 | ||
942 | board_idx++; | |
943 | ||
944 | /* when we're built into the kernel, the driver version message | |
945 | * is only printed if at least one 8139 board has been found | |
946 | */ | |
947 | #ifndef MODULE | |
948 | { | |
949 | static int printed_version; | |
950 | if (!printed_version++) | |
951 | printk (KERN_INFO RTL8139_DRIVER_NAME "\n"); | |
952 | } | |
953 | #endif | |
954 | ||
1da177e4 | 955 | if (pdev->vendor == PCI_VENDOR_ID_REALTEK && |
44c10138 | 956 | pdev->device == PCI_DEVICE_ID_REALTEK_8139 && pdev->revision >= 0x20) { |
9b91cf9d | 957 | dev_info(&pdev->dev, |
de4549ca | 958 | "This (id %04x:%04x rev %02x) is an enhanced 8139C+ chip, use 8139cp\n", |
44c10138 | 959 | pdev->vendor, pdev->device, pdev->revision); |
de4549ca | 960 | return -ENODEV; |
1da177e4 LT |
961 | } |
962 | ||
152151da DJ |
963 | if (pdev->vendor == PCI_VENDOR_ID_REALTEK && |
964 | pdev->device == PCI_DEVICE_ID_REALTEK_8139 && | |
965 | pdev->subsystem_vendor == PCI_VENDOR_ID_ATHEROS && | |
966 | pdev->subsystem_device == PCI_DEVICE_ID_REALTEK_8139) { | |
967 | printk(KERN_INFO "8139too: OQO Model 2 detected. Forcing PIO\n"); | |
968 | use_io = 1; | |
969 | } | |
970 | ||
85920d43 SH |
971 | dev = rtl8139_init_board (pdev); |
972 | if (IS_ERR(dev)) | |
973 | return PTR_ERR(dev); | |
1da177e4 LT |
974 | |
975 | assert (dev != NULL); | |
976 | tp = netdev_priv(dev); | |
bea3348e | 977 | tp->dev = dev; |
1da177e4 LT |
978 | |
979 | ioaddr = tp->mmio_addr; | |
980 | assert (ioaddr != NULL); | |
981 | ||
982 | addr_len = read_eeprom (ioaddr, 0, 8) == 0x8129 ? 8 : 6; | |
983 | for (i = 0; i < 3; i++) | |
eca1ad82 AV |
984 | ((__le16 *) (dev->dev_addr))[i] = |
985 | cpu_to_le16(read_eeprom (ioaddr, i + 7, addr_len)); | |
62a720b8 | 986 | memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len); |
1da177e4 LT |
987 | |
988 | /* The Rtl8139-specific entries in the device structure. */ | |
48dfcde4 | 989 | dev->netdev_ops = &rtl8139_netdev_ops; |
1da177e4 | 990 | dev->ethtool_ops = &rtl8139_ethtool_ops; |
1da177e4 | 991 | dev->watchdog_timeo = TX_TIMEOUT; |
48dfcde4 | 992 | netif_napi_add(dev, &tp->napi, rtl8139_poll, 64); |
1da177e4 LT |
993 | |
994 | /* note: the hardware is not capable of sg/csum/highdma, however | |
995 | * through the use of skb_copy_and_csum_dev we enable these | |
996 | * features | |
997 | */ | |
998 | dev->features |= NETIF_F_SG | NETIF_F_HW_CSUM | NETIF_F_HIGHDMA; | |
999 | ||
1000 | dev->irq = pdev->irq; | |
1001 | ||
1002 | /* tp zeroed and aligned in alloc_etherdev */ | |
1003 | tp = netdev_priv(dev); | |
1004 | ||
1005 | /* note: tp->chipset set in rtl8139_init_board */ | |
1006 | tp->drv_flags = board_info[ent->driver_data].hw_flags; | |
1007 | tp->mmio_addr = ioaddr; | |
1008 | tp->msg_enable = | |
1009 | (debug < 0 ? RTL8139_DEF_MSG_ENABLE : ((1 << debug) - 1)); | |
1010 | spin_lock_init (&tp->lock); | |
1011 | spin_lock_init (&tp->rx_lock); | |
c4028958 | 1012 | INIT_DELAYED_WORK(&tp->thread, rtl8139_thread); |
1da177e4 LT |
1013 | tp->mii.dev = dev; |
1014 | tp->mii.mdio_read = mdio_read; | |
1015 | tp->mii.mdio_write = mdio_write; | |
1016 | tp->mii.phy_id_mask = 0x3f; | |
1017 | tp->mii.reg_num_mask = 0x1f; | |
1018 | ||
1019 | /* dev is fully set up and ready to use now */ | |
1020 | DPRINTK("about to register device named %s (%p)...\n", dev->name, dev); | |
1021 | i = register_netdev (dev); | |
1022 | if (i) goto err_out; | |
1023 | ||
1024 | pci_set_drvdata (pdev, dev); | |
1025 | ||
1026 | printk (KERN_INFO "%s: %s at 0x%lx, " | |
e174961c | 1027 | "%pM, IRQ %d\n", |
1da177e4 LT |
1028 | dev->name, |
1029 | board_info[ent->driver_data].name, | |
1030 | dev->base_addr, | |
e174961c | 1031 | dev->dev_addr, |
1da177e4 LT |
1032 | dev->irq); |
1033 | ||
1034 | printk (KERN_DEBUG "%s: Identified 8139 chip type '%s'\n", | |
1035 | dev->name, rtl_chip_info[tp->chipset].name); | |
1036 | ||
1037 | /* Find the connected MII xcvrs. | |
1038 | Doing this in open() would allow detecting external xcvrs later, but | |
1039 | takes too much time. */ | |
1040 | #ifdef CONFIG_8139TOO_8129 | |
1041 | if (tp->drv_flags & HAS_MII_XCVR) { | |
1042 | int phy, phy_idx = 0; | |
1043 | for (phy = 0; phy < 32 && phy_idx < sizeof(tp->phys); phy++) { | |
1044 | int mii_status = mdio_read(dev, phy, 1); | |
1045 | if (mii_status != 0xffff && mii_status != 0x0000) { | |
1046 | u16 advertising = mdio_read(dev, phy, 4); | |
1047 | tp->phys[phy_idx++] = phy; | |
1048 | printk(KERN_INFO "%s: MII transceiver %d status 0x%4.4x " | |
1049 | "advertising %4.4x.\n", | |
1050 | dev->name, phy, mii_status, advertising); | |
1051 | } | |
1052 | } | |
1053 | if (phy_idx == 0) { | |
1054 | printk(KERN_INFO "%s: No MII transceivers found! Assuming SYM " | |
1055 | "transceiver.\n", | |
1056 | dev->name); | |
1057 | tp->phys[0] = 32; | |
1058 | } | |
1059 | } else | |
1060 | #endif | |
1061 | tp->phys[0] = 32; | |
1062 | tp->mii.phy_id = tp->phys[0]; | |
1063 | ||
1064 | /* The lower four bits are the media type. */ | |
1065 | option = (board_idx >= MAX_UNITS) ? 0 : media[board_idx]; | |
1066 | if (option > 0) { | |
1067 | tp->mii.full_duplex = (option & 0x210) ? 1 : 0; | |
1068 | tp->default_port = option & 0xFF; | |
1069 | if (tp->default_port) | |
1070 | tp->mii.force_media = 1; | |
1071 | } | |
1072 | if (board_idx < MAX_UNITS && full_duplex[board_idx] > 0) | |
1073 | tp->mii.full_duplex = full_duplex[board_idx]; | |
1074 | if (tp->mii.full_duplex) { | |
1075 | printk(KERN_INFO "%s: Media type forced to Full Duplex.\n", dev->name); | |
1076 | /* Changing the MII-advertised media because might prevent | |
1077 | re-connection. */ | |
1078 | tp->mii.force_media = 1; | |
1079 | } | |
1080 | if (tp->default_port) { | |
1081 | printk(KERN_INFO " Forcing %dMbps %s-duplex operation.\n", | |
1082 | (option & 0x20 ? 100 : 10), | |
1083 | (option & 0x10 ? "full" : "half")); | |
1084 | mdio_write(dev, tp->phys[0], 0, | |
1085 | ((option & 0x20) ? 0x2000 : 0) | /* 100Mbps? */ | |
1086 | ((option & 0x10) ? 0x0100 : 0)); /* Full duplex? */ | |
1087 | } | |
1088 | ||
1089 | /* Put the chip into low-power mode. */ | |
1090 | if (rtl_chip_info[tp->chipset].flags & HasHltClk) | |
1091 | RTL_W8 (HltClk, 'H'); /* 'R' would leave the clock running. */ | |
1092 | ||
1093 | return 0; | |
1094 | ||
1095 | err_out: | |
1096 | __rtl8139_cleanup_dev (dev); | |
1097 | pci_disable_device (pdev); | |
1098 | return i; | |
1099 | } | |
1100 | ||
1101 | ||
1102 | static void __devexit rtl8139_remove_one (struct pci_dev *pdev) | |
1103 | { | |
1104 | struct net_device *dev = pci_get_drvdata (pdev); | |
1105 | ||
1106 | assert (dev != NULL); | |
1107 | ||
83cbb4d2 FR |
1108 | flush_scheduled_work(); |
1109 | ||
1da177e4 LT |
1110 | unregister_netdev (dev); |
1111 | ||
1112 | __rtl8139_cleanup_dev (dev); | |
1113 | pci_disable_device (pdev); | |
1114 | } | |
1115 | ||
1116 | ||
1117 | /* Serial EEPROM section. */ | |
1118 | ||
1119 | /* EEPROM_Ctrl bits. */ | |
1120 | #define EE_SHIFT_CLK 0x04 /* EEPROM shift clock. */ | |
1121 | #define EE_CS 0x08 /* EEPROM chip select. */ | |
1122 | #define EE_DATA_WRITE 0x02 /* EEPROM chip data in. */ | |
1123 | #define EE_WRITE_0 0x00 | |
1124 | #define EE_WRITE_1 0x02 | |
1125 | #define EE_DATA_READ 0x01 /* EEPROM chip data out. */ | |
1126 | #define EE_ENB (0x80 | EE_CS) | |
1127 | ||
1128 | /* Delay between EEPROM clock transitions. | |
1129 | No extra delay is needed with 33Mhz PCI, but 66Mhz may change this. | |
1130 | */ | |
1131 | ||
10e705f8 | 1132 | #define eeprom_delay() (void)RTL_R32(Cfg9346) |
1da177e4 LT |
1133 | |
1134 | /* The EEPROM commands include the alway-set leading bit. */ | |
1135 | #define EE_WRITE_CMD (5) | |
1136 | #define EE_READ_CMD (6) | |
1137 | #define EE_ERASE_CMD (7) | |
1138 | ||
22f714b6 | 1139 | static int __devinit read_eeprom (void __iomem *ioaddr, int location, int addr_len) |
1da177e4 LT |
1140 | { |
1141 | int i; | |
1142 | unsigned retval = 0; | |
1da177e4 LT |
1143 | int read_cmd = location | (EE_READ_CMD << addr_len); |
1144 | ||
22f714b6 PE |
1145 | RTL_W8 (Cfg9346, EE_ENB & ~EE_CS); |
1146 | RTL_W8 (Cfg9346, EE_ENB); | |
1da177e4 LT |
1147 | eeprom_delay (); |
1148 | ||
1149 | /* Shift the read command bits out. */ | |
1150 | for (i = 4 + addr_len; i >= 0; i--) { | |
1151 | int dataval = (read_cmd & (1 << i)) ? EE_DATA_WRITE : 0; | |
22f714b6 | 1152 | RTL_W8 (Cfg9346, EE_ENB | dataval); |
1da177e4 | 1153 | eeprom_delay (); |
22f714b6 | 1154 | RTL_W8 (Cfg9346, EE_ENB | dataval | EE_SHIFT_CLK); |
1da177e4 LT |
1155 | eeprom_delay (); |
1156 | } | |
22f714b6 | 1157 | RTL_W8 (Cfg9346, EE_ENB); |
1da177e4 LT |
1158 | eeprom_delay (); |
1159 | ||
1160 | for (i = 16; i > 0; i--) { | |
22f714b6 | 1161 | RTL_W8 (Cfg9346, EE_ENB | EE_SHIFT_CLK); |
1da177e4 LT |
1162 | eeprom_delay (); |
1163 | retval = | |
22f714b6 | 1164 | (retval << 1) | ((RTL_R8 (Cfg9346) & EE_DATA_READ) ? 1 : |
1da177e4 | 1165 | 0); |
22f714b6 | 1166 | RTL_W8 (Cfg9346, EE_ENB); |
1da177e4 LT |
1167 | eeprom_delay (); |
1168 | } | |
1169 | ||
1170 | /* Terminate the EEPROM access. */ | |
22f714b6 | 1171 | RTL_W8 (Cfg9346, ~EE_CS); |
1da177e4 LT |
1172 | eeprom_delay (); |
1173 | ||
1174 | return retval; | |
1175 | } | |
1176 | ||
1177 | /* MII serial management: mostly bogus for now. */ | |
1178 | /* Read and write the MII management registers using software-generated | |
1179 | serial MDIO protocol. | |
1180 | The maximum data clock rate is 2.5 Mhz. The minimum timing is usually | |
1181 | met by back-to-back PCI I/O cycles, but we insert a delay to avoid | |
1182 | "overclocking" issues. */ | |
1183 | #define MDIO_DIR 0x80 | |
1184 | #define MDIO_DATA_OUT 0x04 | |
1185 | #define MDIO_DATA_IN 0x02 | |
1186 | #define MDIO_CLK 0x01 | |
1187 | #define MDIO_WRITE0 (MDIO_DIR) | |
1188 | #define MDIO_WRITE1 (MDIO_DIR | MDIO_DATA_OUT) | |
1189 | ||
22f714b6 | 1190 | #define mdio_delay() RTL_R8(Config4) |
1da177e4 LT |
1191 | |
1192 | ||
f71e1309 | 1193 | static const char mii_2_8139_map[8] = { |
1da177e4 LT |
1194 | BasicModeCtrl, |
1195 | BasicModeStatus, | |
1196 | 0, | |
1197 | 0, | |
1198 | NWayAdvert, | |
1199 | NWayLPAR, | |
1200 | NWayExpansion, | |
1201 | 0 | |
1202 | }; | |
1203 | ||
1204 | ||
1205 | #ifdef CONFIG_8139TOO_8129 | |
1206 | /* Syncronize the MII management interface by shifting 32 one bits out. */ | |
22f714b6 | 1207 | static void mdio_sync (void __iomem *ioaddr) |
1da177e4 LT |
1208 | { |
1209 | int i; | |
1210 | ||
1211 | for (i = 32; i >= 0; i--) { | |
22f714b6 PE |
1212 | RTL_W8 (Config4, MDIO_WRITE1); |
1213 | mdio_delay (); | |
1214 | RTL_W8 (Config4, MDIO_WRITE1 | MDIO_CLK); | |
1215 | mdio_delay (); | |
1da177e4 LT |
1216 | } |
1217 | } | |
1218 | #endif | |
1219 | ||
1220 | static int mdio_read (struct net_device *dev, int phy_id, int location) | |
1221 | { | |
1222 | struct rtl8139_private *tp = netdev_priv(dev); | |
1223 | int retval = 0; | |
1224 | #ifdef CONFIG_8139TOO_8129 | |
22f714b6 | 1225 | void __iomem *ioaddr = tp->mmio_addr; |
1da177e4 LT |
1226 | int mii_cmd = (0xf6 << 10) | (phy_id << 5) | location; |
1227 | int i; | |
1228 | #endif | |
1229 | ||
1230 | if (phy_id > 31) { /* Really a 8139. Use internal registers. */ | |
22f714b6 | 1231 | void __iomem *ioaddr = tp->mmio_addr; |
1da177e4 | 1232 | return location < 8 && mii_2_8139_map[location] ? |
22f714b6 | 1233 | RTL_R16 (mii_2_8139_map[location]) : 0; |
1da177e4 LT |
1234 | } |
1235 | ||
1236 | #ifdef CONFIG_8139TOO_8129 | |
22f714b6 | 1237 | mdio_sync (ioaddr); |
1da177e4 LT |
1238 | /* Shift the read command bits out. */ |
1239 | for (i = 15; i >= 0; i--) { | |
1240 | int dataval = (mii_cmd & (1 << i)) ? MDIO_DATA_OUT : 0; | |
1241 | ||
22f714b6 PE |
1242 | RTL_W8 (Config4, MDIO_DIR | dataval); |
1243 | mdio_delay (); | |
1244 | RTL_W8 (Config4, MDIO_DIR | dataval | MDIO_CLK); | |
1245 | mdio_delay (); | |
1da177e4 LT |
1246 | } |
1247 | ||
1248 | /* Read the two transition, 16 data, and wire-idle bits. */ | |
1249 | for (i = 19; i > 0; i--) { | |
22f714b6 PE |
1250 | RTL_W8 (Config4, 0); |
1251 | mdio_delay (); | |
1252 | retval = (retval << 1) | ((RTL_R8 (Config4) & MDIO_DATA_IN) ? 1 : 0); | |
1253 | RTL_W8 (Config4, MDIO_CLK); | |
1254 | mdio_delay (); | |
1da177e4 LT |
1255 | } |
1256 | #endif | |
1257 | ||
1258 | return (retval >> 1) & 0xffff; | |
1259 | } | |
1260 | ||
1261 | ||
1262 | static void mdio_write (struct net_device *dev, int phy_id, int location, | |
1263 | int value) | |
1264 | { | |
1265 | struct rtl8139_private *tp = netdev_priv(dev); | |
1266 | #ifdef CONFIG_8139TOO_8129 | |
22f714b6 | 1267 | void __iomem *ioaddr = tp->mmio_addr; |
1da177e4 LT |
1268 | int mii_cmd = (0x5002 << 16) | (phy_id << 23) | (location << 18) | value; |
1269 | int i; | |
1270 | #endif | |
1271 | ||
1272 | if (phy_id > 31) { /* Really a 8139. Use internal registers. */ | |
22f714b6 | 1273 | void __iomem *ioaddr = tp->mmio_addr; |
1da177e4 LT |
1274 | if (location == 0) { |
1275 | RTL_W8 (Cfg9346, Cfg9346_Unlock); | |
1276 | RTL_W16 (BasicModeCtrl, value); | |
1277 | RTL_W8 (Cfg9346, Cfg9346_Lock); | |
1278 | } else if (location < 8 && mii_2_8139_map[location]) | |
1279 | RTL_W16 (mii_2_8139_map[location], value); | |
1280 | return; | |
1281 | } | |
1282 | ||
1283 | #ifdef CONFIG_8139TOO_8129 | |
22f714b6 | 1284 | mdio_sync (ioaddr); |
1da177e4 LT |
1285 | |
1286 | /* Shift the command bits out. */ | |
1287 | for (i = 31; i >= 0; i--) { | |
1288 | int dataval = | |
1289 | (mii_cmd & (1 << i)) ? MDIO_WRITE1 : MDIO_WRITE0; | |
22f714b6 PE |
1290 | RTL_W8 (Config4, dataval); |
1291 | mdio_delay (); | |
1292 | RTL_W8 (Config4, dataval | MDIO_CLK); | |
1293 | mdio_delay (); | |
1da177e4 LT |
1294 | } |
1295 | /* Clear out extra bits. */ | |
1296 | for (i = 2; i > 0; i--) { | |
22f714b6 PE |
1297 | RTL_W8 (Config4, 0); |
1298 | mdio_delay (); | |
1299 | RTL_W8 (Config4, MDIO_CLK); | |
1300 | mdio_delay (); | |
1da177e4 LT |
1301 | } |
1302 | #endif | |
1303 | } | |
1304 | ||
1305 | ||
1306 | static int rtl8139_open (struct net_device *dev) | |
1307 | { | |
1308 | struct rtl8139_private *tp = netdev_priv(dev); | |
1309 | int retval; | |
22f714b6 | 1310 | void __iomem *ioaddr = tp->mmio_addr; |
1da177e4 | 1311 | |
1fb9df5d | 1312 | retval = request_irq (dev->irq, rtl8139_interrupt, IRQF_SHARED, dev->name, dev); |
1da177e4 LT |
1313 | if (retval) |
1314 | return retval; | |
1315 | ||
6cc92cdd JG |
1316 | tp->tx_bufs = dma_alloc_coherent(&tp->pci_dev->dev, TX_BUF_TOT_LEN, |
1317 | &tp->tx_bufs_dma, GFP_KERNEL); | |
1318 | tp->rx_ring = dma_alloc_coherent(&tp->pci_dev->dev, RX_BUF_TOT_LEN, | |
1319 | &tp->rx_ring_dma, GFP_KERNEL); | |
1da177e4 LT |
1320 | if (tp->tx_bufs == NULL || tp->rx_ring == NULL) { |
1321 | free_irq(dev->irq, dev); | |
1322 | ||
1323 | if (tp->tx_bufs) | |
6cc92cdd | 1324 | dma_free_coherent(&tp->pci_dev->dev, TX_BUF_TOT_LEN, |
1da177e4 LT |
1325 | tp->tx_bufs, tp->tx_bufs_dma); |
1326 | if (tp->rx_ring) | |
6cc92cdd | 1327 | dma_free_coherent(&tp->pci_dev->dev, RX_BUF_TOT_LEN, |
1da177e4 LT |
1328 | tp->rx_ring, tp->rx_ring_dma); |
1329 | ||
1330 | return -ENOMEM; | |
1331 | ||
1332 | } | |
1333 | ||
bea3348e SH |
1334 | napi_enable(&tp->napi); |
1335 | ||
1da177e4 LT |
1336 | tp->mii.full_duplex = tp->mii.force_media; |
1337 | tp->tx_flag = (TX_FIFO_THRESH << 11) & 0x003f0000; | |
1338 | ||
1339 | rtl8139_init_ring (dev); | |
1340 | rtl8139_hw_start (dev); | |
1341 | netif_start_queue (dev); | |
1342 | ||
1343 | if (netif_msg_ifup(tp)) | |
7c7459d1 GKH |
1344 | printk(KERN_DEBUG "%s: rtl8139_open() ioaddr %#llx IRQ %d" |
1345 | " GP Pins %2.2x %s-duplex.\n", dev->name, | |
1346 | (unsigned long long)pci_resource_start (tp->pci_dev, 1), | |
1da177e4 LT |
1347 | dev->irq, RTL_R8 (MediaStatus), |
1348 | tp->mii.full_duplex ? "full" : "half"); | |
1349 | ||
a15e0384 | 1350 | rtl8139_start_thread(tp); |
1da177e4 LT |
1351 | |
1352 | return 0; | |
1353 | } | |
1354 | ||
1355 | ||
1356 | static void rtl_check_media (struct net_device *dev, unsigned int init_media) | |
1357 | { | |
1358 | struct rtl8139_private *tp = netdev_priv(dev); | |
1359 | ||
1360 | if (tp->phys[0] >= 0) { | |
1361 | mii_check_media(&tp->mii, netif_msg_link(tp), init_media); | |
1362 | } | |
1363 | } | |
1364 | ||
1365 | /* Start the hardware at open or resume. */ | |
1366 | static void rtl8139_hw_start (struct net_device *dev) | |
1367 | { | |
1368 | struct rtl8139_private *tp = netdev_priv(dev); | |
22f714b6 | 1369 | void __iomem *ioaddr = tp->mmio_addr; |
1da177e4 LT |
1370 | u32 i; |
1371 | u8 tmp; | |
1372 | ||
1373 | /* Bring old chips out of low-power mode. */ | |
1374 | if (rtl_chip_info[tp->chipset].flags & HasHltClk) | |
1375 | RTL_W8 (HltClk, 'R'); | |
1376 | ||
1377 | rtl8139_chip_reset (ioaddr); | |
1378 | ||
1379 | /* unlock Config[01234] and BMCR register writes */ | |
1380 | RTL_W8_F (Cfg9346, Cfg9346_Unlock); | |
1381 | /* Restore our idea of the MAC address. */ | |
eca1ad82 AV |
1382 | RTL_W32_F (MAC0 + 0, le32_to_cpu (*(__le32 *) (dev->dev_addr + 0))); |
1383 | RTL_W32_F (MAC0 + 4, le16_to_cpu (*(__le16 *) (dev->dev_addr + 4))); | |
1da177e4 LT |
1384 | |
1385 | /* Must enable Tx/Rx before setting transfer thresholds! */ | |
1386 | RTL_W8 (ChipCmd, CmdRxEnb | CmdTxEnb); | |
1387 | ||
1388 | tp->rx_config = rtl8139_rx_config | AcceptBroadcast | AcceptMyPhys; | |
1389 | RTL_W32 (RxConfig, tp->rx_config); | |
1390 | RTL_W32 (TxConfig, rtl8139_tx_config); | |
1391 | ||
1392 | tp->cur_rx = 0; | |
1393 | ||
1394 | rtl_check_media (dev, 1); | |
1395 | ||
1396 | if (tp->chipset >= CH_8139B) { | |
1397 | /* Disable magic packet scanning, which is enabled | |
1398 | * when PM is enabled in Config1. It can be reenabled | |
1399 | * via ETHTOOL_SWOL if desired. */ | |
1400 | RTL_W8 (Config3, RTL_R8 (Config3) & ~Cfg3_Magic); | |
1401 | } | |
1402 | ||
1403 | DPRINTK("init buffer addresses\n"); | |
1404 | ||
1405 | /* Lock Config[01234] and BMCR register writes */ | |
1406 | RTL_W8 (Cfg9346, Cfg9346_Lock); | |
1407 | ||
1408 | /* init Rx ring buffer DMA address */ | |
1409 | RTL_W32_F (RxBuf, tp->rx_ring_dma); | |
1410 | ||
1411 | /* init Tx buffer DMA addresses */ | |
1412 | for (i = 0; i < NUM_TX_DESC; i++) | |
1413 | RTL_W32_F (TxAddr0 + (i * 4), tp->tx_bufs_dma + (tp->tx_buf[i] - tp->tx_bufs)); | |
1414 | ||
1415 | RTL_W32 (RxMissed, 0); | |
1416 | ||
1417 | rtl8139_set_rx_mode (dev); | |
1418 | ||
1419 | /* no early-rx interrupts */ | |
1420 | RTL_W16 (MultiIntr, RTL_R16 (MultiIntr) & MultiIntrClear); | |
1421 | ||
1422 | /* make sure RxTx has started */ | |
1423 | tmp = RTL_R8 (ChipCmd); | |
1424 | if ((!(tmp & CmdRxEnb)) || (!(tmp & CmdTxEnb))) | |
1425 | RTL_W8 (ChipCmd, CmdRxEnb | CmdTxEnb); | |
1426 | ||
1427 | /* Enable all known interrupts by setting the interrupt mask. */ | |
1428 | RTL_W16 (IntrMask, rtl8139_intr_mask); | |
1429 | } | |
1430 | ||
1431 | ||
1432 | /* Initialize the Rx and Tx rings, along with various 'dev' bits. */ | |
1433 | static void rtl8139_init_ring (struct net_device *dev) | |
1434 | { | |
1435 | struct rtl8139_private *tp = netdev_priv(dev); | |
1436 | int i; | |
1437 | ||
1438 | tp->cur_rx = 0; | |
1439 | tp->cur_tx = 0; | |
1440 | tp->dirty_tx = 0; | |
1441 | ||
1442 | for (i = 0; i < NUM_TX_DESC; i++) | |
1443 | tp->tx_buf[i] = &tp->tx_bufs[i * TX_BUF_SIZE]; | |
1444 | } | |
1445 | ||
1446 | ||
1447 | /* This must be global for CONFIG_8139TOO_TUNE_TWISTER case */ | |
1448 | static int next_tick = 3 * HZ; | |
1449 | ||
1450 | #ifndef CONFIG_8139TOO_TUNE_TWISTER | |
1451 | static inline void rtl8139_tune_twister (struct net_device *dev, | |
1452 | struct rtl8139_private *tp) {} | |
1453 | #else | |
1454 | enum TwisterParamVals { | |
1455 | PARA78_default = 0x78fa8388, | |
1456 | PARA7c_default = 0xcb38de43, /* param[0][3] */ | |
1457 | PARA7c_xxx = 0xcb38de43, | |
1458 | }; | |
1459 | ||
1460 | static const unsigned long param[4][4] = { | |
1461 | {0xcb39de43, 0xcb39ce43, 0xfb38de03, 0xcb38de43}, | |
1462 | {0xcb39de43, 0xcb39ce43, 0xcb39ce83, 0xcb39ce83}, | |
1463 | {0xcb39de43, 0xcb39ce43, 0xcb39ce83, 0xcb39ce83}, | |
1464 | {0xbb39de43, 0xbb39ce43, 0xbb39ce83, 0xbb39ce83} | |
1465 | }; | |
1466 | ||
1467 | static void rtl8139_tune_twister (struct net_device *dev, | |
1468 | struct rtl8139_private *tp) | |
1469 | { | |
1470 | int linkcase; | |
22f714b6 | 1471 | void __iomem *ioaddr = tp->mmio_addr; |
1da177e4 LT |
1472 | |
1473 | /* This is a complicated state machine to configure the "twister" for | |
1474 | impedance/echos based on the cable length. | |
1475 | All of this is magic and undocumented. | |
1476 | */ | |
1477 | switch (tp->twistie) { | |
1478 | case 1: | |
1479 | if (RTL_R16 (CSCR) & CSCR_LinkOKBit) { | |
1480 | /* We have link beat, let us tune the twister. */ | |
1481 | RTL_W16 (CSCR, CSCR_LinkDownOffCmd); | |
1482 | tp->twistie = 2; /* Change to state 2. */ | |
1483 | next_tick = HZ / 10; | |
1484 | } else { | |
1485 | /* Just put in some reasonable defaults for when beat returns. */ | |
1486 | RTL_W16 (CSCR, CSCR_LinkDownCmd); | |
1487 | RTL_W32 (FIFOTMS, 0x20); /* Turn on cable test mode. */ | |
1488 | RTL_W32 (PARA78, PARA78_default); | |
1489 | RTL_W32 (PARA7c, PARA7c_default); | |
1490 | tp->twistie = 0; /* Bail from future actions. */ | |
1491 | } | |
1492 | break; | |
1493 | case 2: | |
1494 | /* Read how long it took to hear the echo. */ | |
1495 | linkcase = RTL_R16 (CSCR) & CSCR_LinkStatusBits; | |
1496 | if (linkcase == 0x7000) | |
1497 | tp->twist_row = 3; | |
1498 | else if (linkcase == 0x3000) | |
1499 | tp->twist_row = 2; | |
1500 | else if (linkcase == 0x1000) | |
1501 | tp->twist_row = 1; | |
1502 | else | |
1503 | tp->twist_row = 0; | |
1504 | tp->twist_col = 0; | |
1505 | tp->twistie = 3; /* Change to state 2. */ | |
1506 | next_tick = HZ / 10; | |
1507 | break; | |
1508 | case 3: | |
1509 | /* Put out four tuning parameters, one per 100msec. */ | |
1510 | if (tp->twist_col == 0) | |
1511 | RTL_W16 (FIFOTMS, 0); | |
1512 | RTL_W32 (PARA7c, param[(int) tp->twist_row] | |
1513 | [(int) tp->twist_col]); | |
1514 | next_tick = HZ / 10; | |
1515 | if (++tp->twist_col >= 4) { | |
1516 | /* For short cables we are done. | |
1517 | For long cables (row == 3) check for mistune. */ | |
1518 | tp->twistie = | |
1519 | (tp->twist_row == 3) ? 4 : 0; | |
1520 | } | |
1521 | break; | |
1522 | case 4: | |
1523 | /* Special case for long cables: check for mistune. */ | |
1524 | if ((RTL_R16 (CSCR) & | |
1525 | CSCR_LinkStatusBits) == 0x7000) { | |
1526 | tp->twistie = 0; | |
1527 | break; | |
1528 | } else { | |
1529 | RTL_W32 (PARA7c, 0xfb38de03); | |
1530 | tp->twistie = 5; | |
1531 | next_tick = HZ / 10; | |
1532 | } | |
1533 | break; | |
1534 | case 5: | |
1535 | /* Retune for shorter cable (column 2). */ | |
1536 | RTL_W32 (FIFOTMS, 0x20); | |
1537 | RTL_W32 (PARA78, PARA78_default); | |
1538 | RTL_W32 (PARA7c, PARA7c_default); | |
1539 | RTL_W32 (FIFOTMS, 0x00); | |
1540 | tp->twist_row = 2; | |
1541 | tp->twist_col = 0; | |
1542 | tp->twistie = 3; | |
1543 | next_tick = HZ / 10; | |
1544 | break; | |
1545 | ||
1546 | default: | |
1547 | /* do nothing */ | |
1548 | break; | |
1549 | } | |
1550 | } | |
1551 | #endif /* CONFIG_8139TOO_TUNE_TWISTER */ | |
1552 | ||
1553 | static inline void rtl8139_thread_iter (struct net_device *dev, | |
1554 | struct rtl8139_private *tp, | |
22f714b6 | 1555 | void __iomem *ioaddr) |
1da177e4 LT |
1556 | { |
1557 | int mii_lpa; | |
1558 | ||
1559 | mii_lpa = mdio_read (dev, tp->phys[0], MII_LPA); | |
1560 | ||
1561 | if (!tp->mii.force_media && mii_lpa != 0xffff) { | |
1562 | int duplex = (mii_lpa & LPA_100FULL) | |
1563 | || (mii_lpa & 0x01C0) == 0x0040; | |
1564 | if (tp->mii.full_duplex != duplex) { | |
1565 | tp->mii.full_duplex = duplex; | |
1566 | ||
1567 | if (mii_lpa) { | |
1568 | printk (KERN_INFO | |
1569 | "%s: Setting %s-duplex based on MII #%d link" | |
1570 | " partner ability of %4.4x.\n", | |
1571 | dev->name, | |
1572 | tp->mii.full_duplex ? "full" : "half", | |
1573 | tp->phys[0], mii_lpa); | |
1574 | } else { | |
1575 | printk(KERN_INFO"%s: media is unconnected, link down, or incompatible connection\n", | |
1576 | dev->name); | |
1577 | } | |
1578 | #if 0 | |
1579 | RTL_W8 (Cfg9346, Cfg9346_Unlock); | |
1580 | RTL_W8 (Config1, tp->mii.full_duplex ? 0x60 : 0x20); | |
1581 | RTL_W8 (Cfg9346, Cfg9346_Lock); | |
1582 | #endif | |
1583 | } | |
1584 | } | |
1585 | ||
1586 | next_tick = HZ * 60; | |
1587 | ||
1588 | rtl8139_tune_twister (dev, tp); | |
1589 | ||
1590 | DPRINTK ("%s: Media selection tick, Link partner %4.4x.\n", | |
1591 | dev->name, RTL_R16 (NWayLPAR)); | |
1592 | DPRINTK ("%s: Other registers are IntMask %4.4x IntStatus %4.4x\n", | |
1593 | dev->name, RTL_R16 (IntrMask), RTL_R16 (IntrStatus)); | |
1594 | DPRINTK ("%s: Chip config %2.2x %2.2x.\n", | |
1595 | dev->name, RTL_R8 (Config0), | |
1596 | RTL_R8 (Config1)); | |
1597 | } | |
1598 | ||
c4028958 | 1599 | static void rtl8139_thread (struct work_struct *work) |
1da177e4 | 1600 | { |
c4028958 DH |
1601 | struct rtl8139_private *tp = |
1602 | container_of(work, struct rtl8139_private, thread.work); | |
1603 | struct net_device *dev = tp->mii.dev; | |
371e8bc2 | 1604 | unsigned long thr_delay = next_tick; |
1da177e4 | 1605 | |
83cbb4d2 FR |
1606 | rtnl_lock(); |
1607 | ||
1608 | if (!netif_running(dev)) | |
1609 | goto out_unlock; | |
1610 | ||
371e8bc2 FR |
1611 | if (tp->watchdog_fired) { |
1612 | tp->watchdog_fired = 0; | |
c4028958 | 1613 | rtl8139_tx_timeout_task(work); |
83cbb4d2 FR |
1614 | } else |
1615 | rtl8139_thread_iter(dev, tp, tp->mmio_addr); | |
1da177e4 | 1616 | |
83cbb4d2 FR |
1617 | if (tp->have_thread) |
1618 | schedule_delayed_work(&tp->thread, thr_delay); | |
1619 | out_unlock: | |
1620 | rtnl_unlock (); | |
1da177e4 LT |
1621 | } |
1622 | ||
a15e0384 | 1623 | static void rtl8139_start_thread(struct rtl8139_private *tp) |
1da177e4 | 1624 | { |
1da177e4 | 1625 | tp->twistie = 0; |
1da177e4 LT |
1626 | if (tp->chipset == CH_8139_K) |
1627 | tp->twistie = 1; | |
1628 | else if (tp->drv_flags & HAS_LNK_CHNG) | |
1629 | return; | |
1630 | ||
38b492a2 | 1631 | tp->have_thread = 1; |
83cbb4d2 | 1632 | tp->watchdog_fired = 0; |
a15e0384 JG |
1633 | |
1634 | schedule_delayed_work(&tp->thread, next_tick); | |
1635 | } | |
1636 | ||
1da177e4 LT |
1637 | static inline void rtl8139_tx_clear (struct rtl8139_private *tp) |
1638 | { | |
1639 | tp->cur_tx = 0; | |
1640 | tp->dirty_tx = 0; | |
1641 | ||
1642 | /* XXX account for unsent Tx packets in tp->stats.tx_dropped */ | |
1643 | } | |
1644 | ||
c4028958 | 1645 | static void rtl8139_tx_timeout_task (struct work_struct *work) |
1da177e4 | 1646 | { |
c4028958 DH |
1647 | struct rtl8139_private *tp = |
1648 | container_of(work, struct rtl8139_private, thread.work); | |
1649 | struct net_device *dev = tp->mii.dev; | |
22f714b6 | 1650 | void __iomem *ioaddr = tp->mmio_addr; |
1da177e4 LT |
1651 | int i; |
1652 | u8 tmp8; | |
1da177e4 LT |
1653 | |
1654 | printk (KERN_DEBUG "%s: Transmit timeout, status %2.2x %4.4x %4.4x " | |
1655 | "media %2.2x.\n", dev->name, RTL_R8 (ChipCmd), | |
1656 | RTL_R16(IntrStatus), RTL_R16(IntrMask), RTL_R8(MediaStatus)); | |
1657 | /* Emit info to figure out what went wrong. */ | |
1658 | printk (KERN_DEBUG "%s: Tx queue start entry %ld dirty entry %ld.\n", | |
1659 | dev->name, tp->cur_tx, tp->dirty_tx); | |
1660 | for (i = 0; i < NUM_TX_DESC; i++) | |
1661 | printk (KERN_DEBUG "%s: Tx descriptor %d is %8.8lx.%s\n", | |
1662 | dev->name, i, RTL_R32 (TxStatus0 + (i * 4)), | |
1663 | i == tp->dirty_tx % NUM_TX_DESC ? | |
1664 | " (queue head)" : ""); | |
1665 | ||
1666 | tp->xstats.tx_timeouts++; | |
1667 | ||
1668 | /* disable Tx ASAP, if not already */ | |
1669 | tmp8 = RTL_R8 (ChipCmd); | |
1670 | if (tmp8 & CmdTxEnb) | |
1671 | RTL_W8 (ChipCmd, CmdRxEnb); | |
1672 | ||
371e8bc2 | 1673 | spin_lock_bh(&tp->rx_lock); |
1da177e4 LT |
1674 | /* Disable interrupts by clearing the interrupt mask. */ |
1675 | RTL_W16 (IntrMask, 0x0000); | |
1676 | ||
1677 | /* Stop a shared interrupt from scavenging while we are. */ | |
371e8bc2 | 1678 | spin_lock_irq(&tp->lock); |
1da177e4 | 1679 | rtl8139_tx_clear (tp); |
371e8bc2 | 1680 | spin_unlock_irq(&tp->lock); |
1da177e4 LT |
1681 | |
1682 | /* ...and finally, reset everything */ | |
1683 | if (netif_running(dev)) { | |
1684 | rtl8139_hw_start (dev); | |
1685 | netif_wake_queue (dev); | |
1686 | } | |
371e8bc2 | 1687 | spin_unlock_bh(&tp->rx_lock); |
1da177e4 LT |
1688 | } |
1689 | ||
371e8bc2 FR |
1690 | static void rtl8139_tx_timeout (struct net_device *dev) |
1691 | { | |
1692 | struct rtl8139_private *tp = netdev_priv(dev); | |
1693 | ||
83cbb4d2 | 1694 | tp->watchdog_fired = 1; |
371e8bc2 | 1695 | if (!tp->have_thread) { |
83cbb4d2 | 1696 | INIT_DELAYED_WORK(&tp->thread, rtl8139_thread); |
371e8bc2 | 1697 | schedule_delayed_work(&tp->thread, next_tick); |
83cbb4d2 | 1698 | } |
371e8bc2 | 1699 | } |
1da177e4 LT |
1700 | |
1701 | static int rtl8139_start_xmit (struct sk_buff *skb, struct net_device *dev) | |
1702 | { | |
1703 | struct rtl8139_private *tp = netdev_priv(dev); | |
22f714b6 | 1704 | void __iomem *ioaddr = tp->mmio_addr; |
1da177e4 LT |
1705 | unsigned int entry; |
1706 | unsigned int len = skb->len; | |
bce305f4 | 1707 | unsigned long flags; |
1da177e4 LT |
1708 | |
1709 | /* Calculate the next Tx descriptor entry. */ | |
1710 | entry = tp->cur_tx % NUM_TX_DESC; | |
1711 | ||
1712 | /* Note: the chip doesn't have auto-pad! */ | |
1713 | if (likely(len < TX_BUF_SIZE)) { | |
1714 | if (len < ETH_ZLEN) | |
1715 | memset(tp->tx_buf[entry], 0, ETH_ZLEN); | |
1716 | skb_copy_and_csum_dev(skb, tp->tx_buf[entry]); | |
1717 | dev_kfree_skb(skb); | |
1718 | } else { | |
1719 | dev_kfree_skb(skb); | |
e1eac92e | 1720 | dev->stats.tx_dropped++; |
1da177e4 LT |
1721 | return 0; |
1722 | } | |
1723 | ||
bce305f4 | 1724 | spin_lock_irqsave(&tp->lock, flags); |
176eaa58 AO |
1725 | /* |
1726 | * Writing to TxStatus triggers a DMA transfer of the data | |
1727 | * copied to tp->tx_buf[entry] above. Use a memory barrier | |
1728 | * to make sure that the device sees the updated data. | |
1729 | */ | |
1730 | wmb(); | |
1da177e4 LT |
1731 | RTL_W32_F (TxStatus0 + (entry * sizeof (u32)), |
1732 | tp->tx_flag | max(len, (unsigned int)ETH_ZLEN)); | |
1733 | ||
1734 | dev->trans_start = jiffies; | |
1735 | ||
1736 | tp->cur_tx++; | |
1da177e4 LT |
1737 | |
1738 | if ((tp->cur_tx - NUM_TX_DESC) == tp->dirty_tx) | |
1739 | netif_stop_queue (dev); | |
bce305f4 | 1740 | spin_unlock_irqrestore(&tp->lock, flags); |
1da177e4 LT |
1741 | |
1742 | if (netif_msg_tx_queued(tp)) | |
1743 | printk (KERN_DEBUG "%s: Queued Tx packet size %u to slot %d.\n", | |
1744 | dev->name, len, entry); | |
1745 | ||
1746 | return 0; | |
1747 | } | |
1748 | ||
1749 | ||
1750 | static void rtl8139_tx_interrupt (struct net_device *dev, | |
1751 | struct rtl8139_private *tp, | |
22f714b6 | 1752 | void __iomem *ioaddr) |
1da177e4 LT |
1753 | { |
1754 | unsigned long dirty_tx, tx_left; | |
1755 | ||
1756 | assert (dev != NULL); | |
1757 | assert (ioaddr != NULL); | |
1758 | ||
1759 | dirty_tx = tp->dirty_tx; | |
1760 | tx_left = tp->cur_tx - dirty_tx; | |
1761 | while (tx_left > 0) { | |
1762 | int entry = dirty_tx % NUM_TX_DESC; | |
1763 | int txstatus; | |
1764 | ||
1765 | txstatus = RTL_R32 (TxStatus0 + (entry * sizeof (u32))); | |
1766 | ||
1767 | if (!(txstatus & (TxStatOK | TxUnderrun | TxAborted))) | |
1768 | break; /* It still hasn't been Txed */ | |
1769 | ||
1770 | /* Note: TxCarrierLost is always asserted at 100mbps. */ | |
1771 | if (txstatus & (TxOutOfWindow | TxAborted)) { | |
1772 | /* There was an major error, log it. */ | |
1773 | if (netif_msg_tx_err(tp)) | |
1774 | printk(KERN_DEBUG "%s: Transmit error, Tx status %8.8x.\n", | |
1775 | dev->name, txstatus); | |
e1eac92e | 1776 | dev->stats.tx_errors++; |
1da177e4 | 1777 | if (txstatus & TxAborted) { |
e1eac92e | 1778 | dev->stats.tx_aborted_errors++; |
1da177e4 LT |
1779 | RTL_W32 (TxConfig, TxClearAbt); |
1780 | RTL_W16 (IntrStatus, TxErr); | |
1781 | wmb(); | |
1782 | } | |
1783 | if (txstatus & TxCarrierLost) | |
e1eac92e | 1784 | dev->stats.tx_carrier_errors++; |
1da177e4 | 1785 | if (txstatus & TxOutOfWindow) |
e1eac92e | 1786 | dev->stats.tx_window_errors++; |
1da177e4 LT |
1787 | } else { |
1788 | if (txstatus & TxUnderrun) { | |
1789 | /* Add 64 to the Tx FIFO threshold. */ | |
1790 | if (tp->tx_flag < 0x00300000) | |
1791 | tp->tx_flag += 0x00020000; | |
e1eac92e | 1792 | dev->stats.tx_fifo_errors++; |
1da177e4 | 1793 | } |
e1eac92e PZ |
1794 | dev->stats.collisions += (txstatus >> 24) & 15; |
1795 | dev->stats.tx_bytes += txstatus & 0x7ff; | |
1796 | dev->stats.tx_packets++; | |
1da177e4 LT |
1797 | } |
1798 | ||
1799 | dirty_tx++; | |
1800 | tx_left--; | |
1801 | } | |
1802 | ||
1803 | #ifndef RTL8139_NDEBUG | |
1804 | if (tp->cur_tx - dirty_tx > NUM_TX_DESC) { | |
1805 | printk (KERN_ERR "%s: Out-of-sync dirty pointer, %ld vs. %ld.\n", | |
1806 | dev->name, dirty_tx, tp->cur_tx); | |
1807 | dirty_tx += NUM_TX_DESC; | |
1808 | } | |
1809 | #endif /* RTL8139_NDEBUG */ | |
1810 | ||
1811 | /* only wake the queue if we did work, and the queue is stopped */ | |
1812 | if (tp->dirty_tx != dirty_tx) { | |
1813 | tp->dirty_tx = dirty_tx; | |
1814 | mb(); | |
1815 | netif_wake_queue (dev); | |
1816 | } | |
1817 | } | |
1818 | ||
1819 | ||
1820 | /* TODO: clean this up! Rx reset need not be this intensive */ | |
1821 | static void rtl8139_rx_err (u32 rx_status, struct net_device *dev, | |
22f714b6 | 1822 | struct rtl8139_private *tp, void __iomem *ioaddr) |
1da177e4 LT |
1823 | { |
1824 | u8 tmp8; | |
1825 | #ifdef CONFIG_8139_OLD_RX_RESET | |
1826 | int tmp_work; | |
1827 | #endif | |
1828 | ||
f3b197ac | 1829 | if (netif_msg_rx_err (tp)) |
1da177e4 LT |
1830 | printk(KERN_DEBUG "%s: Ethernet frame had errors, status %8.8x.\n", |
1831 | dev->name, rx_status); | |
e1eac92e | 1832 | dev->stats.rx_errors++; |
1da177e4 LT |
1833 | if (!(rx_status & RxStatusOK)) { |
1834 | if (rx_status & RxTooLong) { | |
1835 | DPRINTK ("%s: Oversized Ethernet frame, status %4.4x!\n", | |
1836 | dev->name, rx_status); | |
1837 | /* A.C.: The chip hangs here. */ | |
1838 | } | |
1839 | if (rx_status & (RxBadSymbol | RxBadAlign)) | |
e1eac92e | 1840 | dev->stats.rx_frame_errors++; |
1da177e4 | 1841 | if (rx_status & (RxRunt | RxTooLong)) |
e1eac92e | 1842 | dev->stats.rx_length_errors++; |
1da177e4 | 1843 | if (rx_status & RxCRCErr) |
e1eac92e | 1844 | dev->stats.rx_crc_errors++; |
1da177e4 LT |
1845 | } else { |
1846 | tp->xstats.rx_lost_in_ring++; | |
1847 | } | |
1848 | ||
1849 | #ifndef CONFIG_8139_OLD_RX_RESET | |
1850 | tmp8 = RTL_R8 (ChipCmd); | |
1851 | RTL_W8 (ChipCmd, tmp8 & ~CmdRxEnb); | |
1852 | RTL_W8 (ChipCmd, tmp8); | |
1853 | RTL_W32 (RxConfig, tp->rx_config); | |
1854 | tp->cur_rx = 0; | |
1855 | #else | |
1856 | /* Reset the receiver, based on RealTek recommendation. (Bug?) */ | |
1857 | ||
1858 | /* disable receive */ | |
1859 | RTL_W8_F (ChipCmd, CmdTxEnb); | |
1860 | tmp_work = 200; | |
1861 | while (--tmp_work > 0) { | |
1862 | udelay(1); | |
1863 | tmp8 = RTL_R8 (ChipCmd); | |
1864 | if (!(tmp8 & CmdRxEnb)) | |
1865 | break; | |
1866 | } | |
1867 | if (tmp_work <= 0) | |
1868 | printk (KERN_WARNING PFX "rx stop wait too long\n"); | |
1869 | /* restart receive */ | |
1870 | tmp_work = 200; | |
1871 | while (--tmp_work > 0) { | |
1872 | RTL_W8_F (ChipCmd, CmdRxEnb | CmdTxEnb); | |
1873 | udelay(1); | |
1874 | tmp8 = RTL_R8 (ChipCmd); | |
1875 | if ((tmp8 & CmdRxEnb) && (tmp8 & CmdTxEnb)) | |
1876 | break; | |
1877 | } | |
1878 | if (tmp_work <= 0) | |
1879 | printk (KERN_WARNING PFX "tx/rx enable wait too long\n"); | |
1880 | ||
1881 | /* and reinitialize all rx related registers */ | |
1882 | RTL_W8_F (Cfg9346, Cfg9346_Unlock); | |
1883 | /* Must enable Tx/Rx before setting transfer thresholds! */ | |
1884 | RTL_W8 (ChipCmd, CmdRxEnb | CmdTxEnb); | |
1885 | ||
1886 | tp->rx_config = rtl8139_rx_config | AcceptBroadcast | AcceptMyPhys; | |
1887 | RTL_W32 (RxConfig, tp->rx_config); | |
1888 | tp->cur_rx = 0; | |
1889 | ||
1890 | DPRINTK("init buffer addresses\n"); | |
1891 | ||
1892 | /* Lock Config[01234] and BMCR register writes */ | |
1893 | RTL_W8 (Cfg9346, Cfg9346_Lock); | |
1894 | ||
1895 | /* init Rx ring buffer DMA address */ | |
1896 | RTL_W32_F (RxBuf, tp->rx_ring_dma); | |
1897 | ||
1898 | /* A.C.: Reset the multicast list. */ | |
1899 | __set_rx_mode (dev); | |
1900 | #endif | |
1901 | } | |
1902 | ||
1903 | #if RX_BUF_IDX == 3 | |
a9879c4f | 1904 | static inline void wrap_copy(struct sk_buff *skb, const unsigned char *ring, |
1da177e4 LT |
1905 | u32 offset, unsigned int size) |
1906 | { | |
1907 | u32 left = RX_BUF_LEN - offset; | |
1908 | ||
1909 | if (size > left) { | |
27d7ff46 ACM |
1910 | skb_copy_to_linear_data(skb, ring + offset, left); |
1911 | skb_copy_to_linear_data_offset(skb, left, ring, size - left); | |
1da177e4 | 1912 | } else |
27d7ff46 | 1913 | skb_copy_to_linear_data(skb, ring + offset, size); |
1da177e4 LT |
1914 | } |
1915 | #endif | |
1916 | ||
1917 | static void rtl8139_isr_ack(struct rtl8139_private *tp) | |
1918 | { | |
22f714b6 | 1919 | void __iomem *ioaddr = tp->mmio_addr; |
1da177e4 LT |
1920 | u16 status; |
1921 | ||
1922 | status = RTL_R16 (IntrStatus) & RxAckBits; | |
1923 | ||
1924 | /* Clear out errors and receive interrupts */ | |
1925 | if (likely(status != 0)) { | |
1926 | if (unlikely(status & (RxFIFOOver | RxOverflow))) { | |
e1eac92e | 1927 | tp->dev->stats.rx_errors++; |
1da177e4 | 1928 | if (status & RxFIFOOver) |
e1eac92e | 1929 | tp->dev->stats.rx_fifo_errors++; |
1da177e4 LT |
1930 | } |
1931 | RTL_W16_F (IntrStatus, RxAckBits); | |
1932 | } | |
1933 | } | |
1934 | ||
1935 | static int rtl8139_rx(struct net_device *dev, struct rtl8139_private *tp, | |
1936 | int budget) | |
1937 | { | |
22f714b6 | 1938 | void __iomem *ioaddr = tp->mmio_addr; |
1da177e4 LT |
1939 | int received = 0; |
1940 | unsigned char *rx_ring = tp->rx_ring; | |
1941 | unsigned int cur_rx = tp->cur_rx; | |
1942 | unsigned int rx_size = 0; | |
1943 | ||
1944 | DPRINTK ("%s: In rtl8139_rx(), current %4.4x BufAddr %4.4x," | |
1945 | " free to %4.4x, Cmd %2.2x.\n", dev->name, (u16)cur_rx, | |
1946 | RTL_R16 (RxBufAddr), | |
1947 | RTL_R16 (RxBufPtr), RTL_R8 (ChipCmd)); | |
1948 | ||
f3b197ac | 1949 | while (netif_running(dev) && received < budget |
1da177e4 LT |
1950 | && (RTL_R8 (ChipCmd) & RxBufEmpty) == 0) { |
1951 | u32 ring_offset = cur_rx % RX_BUF_LEN; | |
1952 | u32 rx_status; | |
1953 | unsigned int pkt_size; | |
1954 | struct sk_buff *skb; | |
1955 | ||
1956 | rmb(); | |
1957 | ||
1958 | /* read size+status of next frame from DMA ring buffer */ | |
eca1ad82 | 1959 | rx_status = le32_to_cpu (*(__le32 *) (rx_ring + ring_offset)); |
1da177e4 LT |
1960 | rx_size = rx_status >> 16; |
1961 | pkt_size = rx_size - 4; | |
1962 | ||
1963 | if (netif_msg_rx_status(tp)) | |
1964 | printk(KERN_DEBUG "%s: rtl8139_rx() status %4.4x, size %4.4x," | |
1965 | " cur %4.4x.\n", dev->name, rx_status, | |
1966 | rx_size, cur_rx); | |
1967 | #if RTL8139_DEBUG > 2 | |
1968 | { | |
1969 | int i; | |
1970 | DPRINTK ("%s: Frame contents ", dev->name); | |
1971 | for (i = 0; i < 70; i++) | |
1972 | printk (" %2.2x", | |
1973 | rx_ring[ring_offset + i]); | |
1974 | printk (".\n"); | |
1975 | } | |
1976 | #endif | |
1977 | ||
1978 | /* Packet copy from FIFO still in progress. | |
1979 | * Theoretically, this should never happen | |
1980 | * since EarlyRx is disabled. | |
1981 | */ | |
1982 | if (unlikely(rx_size == 0xfff0)) { | |
1983 | if (!tp->fifo_copy_timeout) | |
1984 | tp->fifo_copy_timeout = jiffies + 2; | |
1985 | else if (time_after(jiffies, tp->fifo_copy_timeout)) { | |
1986 | DPRINTK ("%s: hung FIFO. Reset.", dev->name); | |
1987 | rx_size = 0; | |
1988 | goto no_early_rx; | |
1989 | } | |
1990 | if (netif_msg_intr(tp)) { | |
1991 | printk(KERN_DEBUG "%s: fifo copy in progress.", | |
1992 | dev->name); | |
1993 | } | |
1994 | tp->xstats.early_rx++; | |
1995 | break; | |
1996 | } | |
1997 | ||
1998 | no_early_rx: | |
1999 | tp->fifo_copy_timeout = 0; | |
2000 | ||
2001 | /* If Rx err or invalid rx_size/rx_status received | |
2002 | * (which happens if we get lost in the ring), | |
2003 | * Rx process gets reset, so we abort any further | |
2004 | * Rx processing. | |
2005 | */ | |
2006 | if (unlikely((rx_size > (MAX_ETH_FRAME_SIZE+4)) || | |
2007 | (rx_size < 8) || | |
2008 | (!(rx_status & RxStatusOK)))) { | |
2009 | rtl8139_rx_err (rx_status, dev, tp, ioaddr); | |
2010 | received = -1; | |
2011 | goto out; | |
2012 | } | |
2013 | ||
2014 | /* Malloc up new buffer, compatible with net-2e. */ | |
2015 | /* Omit the four octet CRC from the length. */ | |
2016 | ||
1c460afa | 2017 | skb = netdev_alloc_skb(dev, pkt_size + NET_IP_ALIGN); |
1da177e4 | 2018 | if (likely(skb)) { |
1c460afa | 2019 | skb_reserve (skb, NET_IP_ALIGN); /* 16 byte align the IP fields. */ |
1da177e4 LT |
2020 | #if RX_BUF_IDX == 3 |
2021 | wrap_copy(skb, rx_ring, ring_offset+4, pkt_size); | |
2022 | #else | |
8c7b7faa | 2023 | skb_copy_to_linear_data (skb, &rx_ring[ring_offset + 4], pkt_size); |
1da177e4 LT |
2024 | #endif |
2025 | skb_put (skb, pkt_size); | |
2026 | ||
2027 | skb->protocol = eth_type_trans (skb, dev); | |
2028 | ||
e1eac92e PZ |
2029 | dev->stats.rx_bytes += pkt_size; |
2030 | dev->stats.rx_packets++; | |
1da177e4 LT |
2031 | |
2032 | netif_receive_skb (skb); | |
2033 | } else { | |
f3b197ac | 2034 | if (net_ratelimit()) |
1da177e4 LT |
2035 | printk (KERN_WARNING |
2036 | "%s: Memory squeeze, dropping packet.\n", | |
2037 | dev->name); | |
e1eac92e | 2038 | dev->stats.rx_dropped++; |
1da177e4 LT |
2039 | } |
2040 | received++; | |
2041 | ||
2042 | cur_rx = (cur_rx + rx_size + 4 + 3) & ~3; | |
2043 | RTL_W16 (RxBufPtr, (u16) (cur_rx - 16)); | |
2044 | ||
2045 | rtl8139_isr_ack(tp); | |
2046 | } | |
2047 | ||
2048 | if (unlikely(!received || rx_size == 0xfff0)) | |
2049 | rtl8139_isr_ack(tp); | |
2050 | ||
2051 | #if RTL8139_DEBUG > 1 | |
2052 | DPRINTK ("%s: Done rtl8139_rx(), current %4.4x BufAddr %4.4x," | |
2053 | " free to %4.4x, Cmd %2.2x.\n", dev->name, cur_rx, | |
2054 | RTL_R16 (RxBufAddr), | |
2055 | RTL_R16 (RxBufPtr), RTL_R8 (ChipCmd)); | |
2056 | #endif | |
2057 | ||
2058 | tp->cur_rx = cur_rx; | |
2059 | ||
2060 | /* | |
2061 | * The receive buffer should be mostly empty. | |
2062 | * Tell NAPI to reenable the Rx irq. | |
2063 | */ | |
2064 | if (tp->fifo_copy_timeout) | |
2065 | received = budget; | |
2066 | ||
2067 | out: | |
2068 | return received; | |
2069 | } | |
2070 | ||
2071 | ||
2072 | static void rtl8139_weird_interrupt (struct net_device *dev, | |
2073 | struct rtl8139_private *tp, | |
22f714b6 | 2074 | void __iomem *ioaddr, |
1da177e4 LT |
2075 | int status, int link_changed) |
2076 | { | |
2077 | DPRINTK ("%s: Abnormal interrupt, status %8.8x.\n", | |
2078 | dev->name, status); | |
2079 | ||
2080 | assert (dev != NULL); | |
2081 | assert (tp != NULL); | |
2082 | assert (ioaddr != NULL); | |
2083 | ||
2084 | /* Update the error count. */ | |
e1eac92e | 2085 | dev->stats.rx_missed_errors += RTL_R32 (RxMissed); |
1da177e4 LT |
2086 | RTL_W32 (RxMissed, 0); |
2087 | ||
2088 | if ((status & RxUnderrun) && link_changed && | |
2089 | (tp->drv_flags & HAS_LNK_CHNG)) { | |
2090 | rtl_check_media(dev, 0); | |
2091 | status &= ~RxUnderrun; | |
2092 | } | |
2093 | ||
2094 | if (status & (RxUnderrun | RxErr)) | |
e1eac92e | 2095 | dev->stats.rx_errors++; |
1da177e4 LT |
2096 | |
2097 | if (status & PCSTimeout) | |
e1eac92e | 2098 | dev->stats.rx_length_errors++; |
1da177e4 | 2099 | if (status & RxUnderrun) |
e1eac92e | 2100 | dev->stats.rx_fifo_errors++; |
1da177e4 LT |
2101 | if (status & PCIErr) { |
2102 | u16 pci_cmd_status; | |
2103 | pci_read_config_word (tp->pci_dev, PCI_STATUS, &pci_cmd_status); | |
2104 | pci_write_config_word (tp->pci_dev, PCI_STATUS, pci_cmd_status); | |
2105 | ||
2106 | printk (KERN_ERR "%s: PCI Bus error %4.4x.\n", | |
2107 | dev->name, pci_cmd_status); | |
2108 | } | |
2109 | } | |
2110 | ||
bea3348e | 2111 | static int rtl8139_poll(struct napi_struct *napi, int budget) |
1da177e4 | 2112 | { |
bea3348e SH |
2113 | struct rtl8139_private *tp = container_of(napi, struct rtl8139_private, napi); |
2114 | struct net_device *dev = tp->dev; | |
22f714b6 | 2115 | void __iomem *ioaddr = tp->mmio_addr; |
bea3348e | 2116 | int work_done; |
1da177e4 LT |
2117 | |
2118 | spin_lock(&tp->rx_lock); | |
bea3348e SH |
2119 | work_done = 0; |
2120 | if (likely(RTL_R16(IntrStatus) & RxAckBits)) | |
2121 | work_done += rtl8139_rx(dev, tp, budget); | |
1da177e4 | 2122 | |
bea3348e | 2123 | if (work_done < budget) { |
b57bd066 | 2124 | unsigned long flags; |
1da177e4 LT |
2125 | /* |
2126 | * Order is important since data can get interrupted | |
2127 | * again when we think we are done. | |
2128 | */ | |
bea3348e | 2129 | spin_lock_irqsave(&tp->lock, flags); |
1da177e4 | 2130 | RTL_W16_F(IntrMask, rtl8139_intr_mask); |
bea3348e SH |
2131 | __netif_rx_complete(dev, napi); |
2132 | spin_unlock_irqrestore(&tp->lock, flags); | |
1da177e4 LT |
2133 | } |
2134 | spin_unlock(&tp->rx_lock); | |
2135 | ||
bea3348e | 2136 | return work_done; |
1da177e4 LT |
2137 | } |
2138 | ||
2139 | /* The interrupt handler does all of the Rx thread work and cleans up | |
2140 | after the Tx thread. */ | |
7d12e780 | 2141 | static irqreturn_t rtl8139_interrupt (int irq, void *dev_instance) |
1da177e4 LT |
2142 | { |
2143 | struct net_device *dev = (struct net_device *) dev_instance; | |
2144 | struct rtl8139_private *tp = netdev_priv(dev); | |
22f714b6 | 2145 | void __iomem *ioaddr = tp->mmio_addr; |
1da177e4 LT |
2146 | u16 status, ackstat; |
2147 | int link_changed = 0; /* avoid bogus "uninit" warning */ | |
2148 | int handled = 0; | |
2149 | ||
2150 | spin_lock (&tp->lock); | |
2151 | status = RTL_R16 (IntrStatus); | |
2152 | ||
2153 | /* shared irq? */ | |
f3b197ac | 2154 | if (unlikely((status & rtl8139_intr_mask) == 0)) |
1da177e4 LT |
2155 | goto out; |
2156 | ||
2157 | handled = 1; | |
2158 | ||
2159 | /* h/w no longer present (hotplug?) or major error, bail */ | |
f3b197ac | 2160 | if (unlikely(status == 0xFFFF)) |
1da177e4 LT |
2161 | goto out; |
2162 | ||
2163 | /* close possible race's with dev_close */ | |
2164 | if (unlikely(!netif_running(dev))) { | |
2165 | RTL_W16 (IntrMask, 0); | |
2166 | goto out; | |
2167 | } | |
2168 | ||
2169 | /* Acknowledge all of the current interrupt sources ASAP, but | |
2170 | an first get an additional status bit from CSCR. */ | |
2171 | if (unlikely(status & RxUnderrun)) | |
2172 | link_changed = RTL_R16 (CSCR) & CSCR_LinkChangeBit; | |
2173 | ||
2174 | ackstat = status & ~(RxAckBits | TxErr); | |
2175 | if (ackstat) | |
2176 | RTL_W16 (IntrStatus, ackstat); | |
2177 | ||
2178 | /* Receive packets are processed by poll routine. | |
2179 | If not running start it now. */ | |
2180 | if (status & RxAckBits){ | |
bea3348e | 2181 | if (netif_rx_schedule_prep(dev, &tp->napi)) { |
1da177e4 | 2182 | RTL_W16_F (IntrMask, rtl8139_norx_intr_mask); |
bea3348e | 2183 | __netif_rx_schedule(dev, &tp->napi); |
1da177e4 LT |
2184 | } |
2185 | } | |
2186 | ||
2187 | /* Check uncommon events with one test. */ | |
2188 | if (unlikely(status & (PCIErr | PCSTimeout | RxUnderrun | RxErr))) | |
2189 | rtl8139_weird_interrupt (dev, tp, ioaddr, | |
2190 | status, link_changed); | |
2191 | ||
2192 | if (status & (TxOK | TxErr)) { | |
2193 | rtl8139_tx_interrupt (dev, tp, ioaddr); | |
2194 | if (status & TxErr) | |
2195 | RTL_W16 (IntrStatus, TxErr); | |
2196 | } | |
2197 | out: | |
2198 | spin_unlock (&tp->lock); | |
2199 | ||
2200 | DPRINTK ("%s: exiting interrupt, intr_status=%#4.4x.\n", | |
2201 | dev->name, RTL_R16 (IntrStatus)); | |
2202 | return IRQ_RETVAL(handled); | |
2203 | } | |
2204 | ||
2205 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
2206 | /* | |
2207 | * Polling receive - used by netconsole and other diagnostic tools | |
2208 | * to allow network i/o with interrupts disabled. | |
2209 | */ | |
2210 | static void rtl8139_poll_controller(struct net_device *dev) | |
2211 | { | |
2212 | disable_irq(dev->irq); | |
7d12e780 | 2213 | rtl8139_interrupt(dev->irq, dev); |
1da177e4 LT |
2214 | enable_irq(dev->irq); |
2215 | } | |
2216 | #endif | |
2217 | ||
2218 | static int rtl8139_close (struct net_device *dev) | |
2219 | { | |
2220 | struct rtl8139_private *tp = netdev_priv(dev); | |
22f714b6 | 2221 | void __iomem *ioaddr = tp->mmio_addr; |
1da177e4 LT |
2222 | unsigned long flags; |
2223 | ||
bea3348e SH |
2224 | netif_stop_queue(dev); |
2225 | napi_disable(&tp->napi); | |
1da177e4 | 2226 | |
1da177e4 LT |
2227 | if (netif_msg_ifdown(tp)) |
2228 | printk(KERN_DEBUG "%s: Shutting down ethercard, status was 0x%4.4x.\n", | |
2229 | dev->name, RTL_R16 (IntrStatus)); | |
2230 | ||
2231 | spin_lock_irqsave (&tp->lock, flags); | |
2232 | ||
2233 | /* Stop the chip's Tx and Rx DMA processes. */ | |
2234 | RTL_W8 (ChipCmd, 0); | |
2235 | ||
2236 | /* Disable interrupts by clearing the interrupt mask. */ | |
2237 | RTL_W16 (IntrMask, 0); | |
2238 | ||
2239 | /* Update the error counts. */ | |
e1eac92e | 2240 | dev->stats.rx_missed_errors += RTL_R32 (RxMissed); |
1da177e4 LT |
2241 | RTL_W32 (RxMissed, 0); |
2242 | ||
2243 | spin_unlock_irqrestore (&tp->lock, flags); | |
2244 | ||
1da177e4 LT |
2245 | free_irq (dev->irq, dev); |
2246 | ||
2247 | rtl8139_tx_clear (tp); | |
2248 | ||
6cc92cdd JG |
2249 | dma_free_coherent(&tp->pci_dev->dev, RX_BUF_TOT_LEN, |
2250 | tp->rx_ring, tp->rx_ring_dma); | |
2251 | dma_free_coherent(&tp->pci_dev->dev, TX_BUF_TOT_LEN, | |
2252 | tp->tx_bufs, tp->tx_bufs_dma); | |
1da177e4 LT |
2253 | tp->rx_ring = NULL; |
2254 | tp->tx_bufs = NULL; | |
2255 | ||
2256 | /* Green! Put the chip in low-power mode. */ | |
2257 | RTL_W8 (Cfg9346, Cfg9346_Unlock); | |
2258 | ||
2259 | if (rtl_chip_info[tp->chipset].flags & HasHltClk) | |
2260 | RTL_W8 (HltClk, 'H'); /* 'R' would leave the clock running. */ | |
2261 | ||
2262 | return 0; | |
2263 | } | |
2264 | ||
2265 | ||
2266 | /* Get the ethtool Wake-on-LAN settings. Assumes that wol points to | |
2267 | kernel memory, *wol has been initialized as {ETHTOOL_GWOL}, and | |
2268 | other threads or interrupts aren't messing with the 8139. */ | |
2269 | static void rtl8139_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol) | |
2270 | { | |
2271 | struct rtl8139_private *np = netdev_priv(dev); | |
22f714b6 | 2272 | void __iomem *ioaddr = np->mmio_addr; |
1da177e4 LT |
2273 | |
2274 | spin_lock_irq(&np->lock); | |
2275 | if (rtl_chip_info[np->chipset].flags & HasLWake) { | |
2276 | u8 cfg3 = RTL_R8 (Config3); | |
2277 | u8 cfg5 = RTL_R8 (Config5); | |
2278 | ||
2279 | wol->supported = WAKE_PHY | WAKE_MAGIC | |
2280 | | WAKE_UCAST | WAKE_MCAST | WAKE_BCAST; | |
2281 | ||
2282 | wol->wolopts = 0; | |
2283 | if (cfg3 & Cfg3_LinkUp) | |
2284 | wol->wolopts |= WAKE_PHY; | |
2285 | if (cfg3 & Cfg3_Magic) | |
2286 | wol->wolopts |= WAKE_MAGIC; | |
2287 | /* (KON)FIXME: See how netdev_set_wol() handles the | |
2288 | following constants. */ | |
2289 | if (cfg5 & Cfg5_UWF) | |
2290 | wol->wolopts |= WAKE_UCAST; | |
2291 | if (cfg5 & Cfg5_MWF) | |
2292 | wol->wolopts |= WAKE_MCAST; | |
2293 | if (cfg5 & Cfg5_BWF) | |
2294 | wol->wolopts |= WAKE_BCAST; | |
2295 | } | |
2296 | spin_unlock_irq(&np->lock); | |
2297 | } | |
2298 | ||
2299 | ||
2300 | /* Set the ethtool Wake-on-LAN settings. Return 0 or -errno. Assumes | |
2301 | that wol points to kernel memory and other threads or interrupts | |
2302 | aren't messing with the 8139. */ | |
2303 | static int rtl8139_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) | |
2304 | { | |
2305 | struct rtl8139_private *np = netdev_priv(dev); | |
22f714b6 | 2306 | void __iomem *ioaddr = np->mmio_addr; |
1da177e4 LT |
2307 | u32 support; |
2308 | u8 cfg3, cfg5; | |
2309 | ||
2310 | support = ((rtl_chip_info[np->chipset].flags & HasLWake) | |
2311 | ? (WAKE_PHY | WAKE_MAGIC | |
2312 | | WAKE_UCAST | WAKE_MCAST | WAKE_BCAST) | |
2313 | : 0); | |
2314 | if (wol->wolopts & ~support) | |
2315 | return -EINVAL; | |
2316 | ||
2317 | spin_lock_irq(&np->lock); | |
2318 | cfg3 = RTL_R8 (Config3) & ~(Cfg3_LinkUp | Cfg3_Magic); | |
2319 | if (wol->wolopts & WAKE_PHY) | |
2320 | cfg3 |= Cfg3_LinkUp; | |
2321 | if (wol->wolopts & WAKE_MAGIC) | |
2322 | cfg3 |= Cfg3_Magic; | |
2323 | RTL_W8 (Cfg9346, Cfg9346_Unlock); | |
2324 | RTL_W8 (Config3, cfg3); | |
2325 | RTL_W8 (Cfg9346, Cfg9346_Lock); | |
2326 | ||
2327 | cfg5 = RTL_R8 (Config5) & ~(Cfg5_UWF | Cfg5_MWF | Cfg5_BWF); | |
2328 | /* (KON)FIXME: These are untested. We may have to set the | |
2329 | CRC0, Wakeup0 and LSBCRC0 registers too, but I have no | |
2330 | documentation. */ | |
2331 | if (wol->wolopts & WAKE_UCAST) | |
2332 | cfg5 |= Cfg5_UWF; | |
2333 | if (wol->wolopts & WAKE_MCAST) | |
2334 | cfg5 |= Cfg5_MWF; | |
2335 | if (wol->wolopts & WAKE_BCAST) | |
2336 | cfg5 |= Cfg5_BWF; | |
2337 | RTL_W8 (Config5, cfg5); /* need not unlock via Cfg9346 */ | |
2338 | spin_unlock_irq(&np->lock); | |
2339 | ||
2340 | return 0; | |
2341 | } | |
2342 | ||
2343 | static void rtl8139_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) | |
2344 | { | |
2345 | struct rtl8139_private *np = netdev_priv(dev); | |
2346 | strcpy(info->driver, DRV_NAME); | |
2347 | strcpy(info->version, DRV_VERSION); | |
2348 | strcpy(info->bus_info, pci_name(np->pci_dev)); | |
2349 | info->regdump_len = np->regs_len; | |
2350 | } | |
2351 | ||
2352 | static int rtl8139_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) | |
2353 | { | |
2354 | struct rtl8139_private *np = netdev_priv(dev); | |
2355 | spin_lock_irq(&np->lock); | |
2356 | mii_ethtool_gset(&np->mii, cmd); | |
2357 | spin_unlock_irq(&np->lock); | |
2358 | return 0; | |
2359 | } | |
2360 | ||
2361 | static int rtl8139_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) | |
2362 | { | |
2363 | struct rtl8139_private *np = netdev_priv(dev); | |
2364 | int rc; | |
2365 | spin_lock_irq(&np->lock); | |
2366 | rc = mii_ethtool_sset(&np->mii, cmd); | |
2367 | spin_unlock_irq(&np->lock); | |
2368 | return rc; | |
2369 | } | |
2370 | ||
2371 | static int rtl8139_nway_reset(struct net_device *dev) | |
2372 | { | |
2373 | struct rtl8139_private *np = netdev_priv(dev); | |
2374 | return mii_nway_restart(&np->mii); | |
2375 | } | |
2376 | ||
2377 | static u32 rtl8139_get_link(struct net_device *dev) | |
2378 | { | |
2379 | struct rtl8139_private *np = netdev_priv(dev); | |
2380 | return mii_link_ok(&np->mii); | |
2381 | } | |
2382 | ||
2383 | static u32 rtl8139_get_msglevel(struct net_device *dev) | |
2384 | { | |
2385 | struct rtl8139_private *np = netdev_priv(dev); | |
2386 | return np->msg_enable; | |
2387 | } | |
2388 | ||
2389 | static void rtl8139_set_msglevel(struct net_device *dev, u32 datum) | |
2390 | { | |
2391 | struct rtl8139_private *np = netdev_priv(dev); | |
2392 | np->msg_enable = datum; | |
2393 | } | |
2394 | ||
1da177e4 LT |
2395 | static int rtl8139_get_regs_len(struct net_device *dev) |
2396 | { | |
eb581348 DJ |
2397 | struct rtl8139_private *np; |
2398 | /* TODO: we are too slack to do reg dumping for pio, for now */ | |
2399 | if (use_io) | |
2400 | return 0; | |
2401 | np = netdev_priv(dev); | |
1da177e4 LT |
2402 | return np->regs_len; |
2403 | } | |
2404 | ||
2405 | static void rtl8139_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *regbuf) | |
2406 | { | |
eb581348 DJ |
2407 | struct rtl8139_private *np; |
2408 | ||
2409 | /* TODO: we are too slack to do reg dumping for pio, for now */ | |
2410 | if (use_io) | |
2411 | return; | |
2412 | np = netdev_priv(dev); | |
1da177e4 LT |
2413 | |
2414 | regs->version = RTL_REGS_VER; | |
2415 | ||
2416 | spin_lock_irq(&np->lock); | |
2417 | memcpy_fromio(regbuf, np->mmio_addr, regs->len); | |
2418 | spin_unlock_irq(&np->lock); | |
2419 | } | |
1da177e4 | 2420 | |
b9f2c044 | 2421 | static int rtl8139_get_sset_count(struct net_device *dev, int sset) |
1da177e4 | 2422 | { |
b9f2c044 JG |
2423 | switch (sset) { |
2424 | case ETH_SS_STATS: | |
2425 | return RTL_NUM_STATS; | |
2426 | default: | |
2427 | return -EOPNOTSUPP; | |
2428 | } | |
1da177e4 LT |
2429 | } |
2430 | ||
2431 | static void rtl8139_get_ethtool_stats(struct net_device *dev, struct ethtool_stats *stats, u64 *data) | |
2432 | { | |
2433 | struct rtl8139_private *np = netdev_priv(dev); | |
2434 | ||
2435 | data[0] = np->xstats.early_rx; | |
2436 | data[1] = np->xstats.tx_buf_mapped; | |
2437 | data[2] = np->xstats.tx_timeouts; | |
2438 | data[3] = np->xstats.rx_lost_in_ring; | |
2439 | } | |
2440 | ||
2441 | static void rtl8139_get_strings(struct net_device *dev, u32 stringset, u8 *data) | |
2442 | { | |
2443 | memcpy(data, ethtool_stats_keys, sizeof(ethtool_stats_keys)); | |
2444 | } | |
2445 | ||
7282d491 | 2446 | static const struct ethtool_ops rtl8139_ethtool_ops = { |
1da177e4 LT |
2447 | .get_drvinfo = rtl8139_get_drvinfo, |
2448 | .get_settings = rtl8139_get_settings, | |
2449 | .set_settings = rtl8139_set_settings, | |
2450 | .get_regs_len = rtl8139_get_regs_len, | |
2451 | .get_regs = rtl8139_get_regs, | |
2452 | .nway_reset = rtl8139_nway_reset, | |
2453 | .get_link = rtl8139_get_link, | |
2454 | .get_msglevel = rtl8139_get_msglevel, | |
2455 | .set_msglevel = rtl8139_set_msglevel, | |
2456 | .get_wol = rtl8139_get_wol, | |
2457 | .set_wol = rtl8139_set_wol, | |
2458 | .get_strings = rtl8139_get_strings, | |
b9f2c044 | 2459 | .get_sset_count = rtl8139_get_sset_count, |
1da177e4 LT |
2460 | .get_ethtool_stats = rtl8139_get_ethtool_stats, |
2461 | }; | |
2462 | ||
2463 | static int netdev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) | |
2464 | { | |
2465 | struct rtl8139_private *np = netdev_priv(dev); | |
2466 | int rc; | |
2467 | ||
2468 | if (!netif_running(dev)) | |
2469 | return -EINVAL; | |
2470 | ||
2471 | spin_lock_irq(&np->lock); | |
2472 | rc = generic_mii_ioctl(&np->mii, if_mii(rq), cmd, NULL); | |
2473 | spin_unlock_irq(&np->lock); | |
2474 | ||
2475 | return rc; | |
2476 | } | |
2477 | ||
2478 | ||
2479 | static struct net_device_stats *rtl8139_get_stats (struct net_device *dev) | |
2480 | { | |
2481 | struct rtl8139_private *tp = netdev_priv(dev); | |
22f714b6 | 2482 | void __iomem *ioaddr = tp->mmio_addr; |
1da177e4 LT |
2483 | unsigned long flags; |
2484 | ||
2485 | if (netif_running(dev)) { | |
2486 | spin_lock_irqsave (&tp->lock, flags); | |
e1eac92e | 2487 | dev->stats.rx_missed_errors += RTL_R32 (RxMissed); |
1da177e4 LT |
2488 | RTL_W32 (RxMissed, 0); |
2489 | spin_unlock_irqrestore (&tp->lock, flags); | |
2490 | } | |
2491 | ||
e1eac92e | 2492 | return &dev->stats; |
1da177e4 LT |
2493 | } |
2494 | ||
2495 | /* Set or clear the multicast filter for this adaptor. | |
2496 | This routine is not state sensitive and need not be SMP locked. */ | |
2497 | ||
2498 | static void __set_rx_mode (struct net_device *dev) | |
2499 | { | |
2500 | struct rtl8139_private *tp = netdev_priv(dev); | |
22f714b6 | 2501 | void __iomem *ioaddr = tp->mmio_addr; |
1da177e4 LT |
2502 | u32 mc_filter[2]; /* Multicast hash filter */ |
2503 | int i, rx_mode; | |
2504 | u32 tmp; | |
2505 | ||
2506 | DPRINTK ("%s: rtl8139_set_rx_mode(%4.4x) done -- Rx config %8.8lx.\n", | |
2507 | dev->name, dev->flags, RTL_R32 (RxConfig)); | |
2508 | ||
2509 | /* Note: do not reorder, GCC is clever about common statements. */ | |
2510 | if (dev->flags & IFF_PROMISC) { | |
1da177e4 LT |
2511 | rx_mode = |
2512 | AcceptBroadcast | AcceptMulticast | AcceptMyPhys | | |
2513 | AcceptAllPhys; | |
2514 | mc_filter[1] = mc_filter[0] = 0xffffffff; | |
2515 | } else if ((dev->mc_count > multicast_filter_limit) | |
2516 | || (dev->flags & IFF_ALLMULTI)) { | |
2517 | /* Too many to filter perfectly -- accept all multicasts. */ | |
2518 | rx_mode = AcceptBroadcast | AcceptMulticast | AcceptMyPhys; | |
2519 | mc_filter[1] = mc_filter[0] = 0xffffffff; | |
2520 | } else { | |
2521 | struct dev_mc_list *mclist; | |
2522 | rx_mode = AcceptBroadcast | AcceptMyPhys; | |
2523 | mc_filter[1] = mc_filter[0] = 0; | |
2524 | for (i = 0, mclist = dev->mc_list; mclist && i < dev->mc_count; | |
2525 | i++, mclist = mclist->next) { | |
2526 | int bit_nr = ether_crc(ETH_ALEN, mclist->dmi_addr) >> 26; | |
2527 | ||
2528 | mc_filter[bit_nr >> 5] |= 1 << (bit_nr & 31); | |
2529 | rx_mode |= AcceptMulticast; | |
2530 | } | |
2531 | } | |
2532 | ||
2533 | /* We can safely update without stopping the chip. */ | |
2534 | tmp = rtl8139_rx_config | rx_mode; | |
2535 | if (tp->rx_config != tmp) { | |
2536 | RTL_W32_F (RxConfig, tmp); | |
2537 | tp->rx_config = tmp; | |
2538 | } | |
2539 | RTL_W32_F (MAR0 + 0, mc_filter[0]); | |
2540 | RTL_W32_F (MAR0 + 4, mc_filter[1]); | |
2541 | } | |
2542 | ||
2543 | static void rtl8139_set_rx_mode (struct net_device *dev) | |
2544 | { | |
2545 | unsigned long flags; | |
2546 | struct rtl8139_private *tp = netdev_priv(dev); | |
2547 | ||
2548 | spin_lock_irqsave (&tp->lock, flags); | |
2549 | __set_rx_mode(dev); | |
2550 | spin_unlock_irqrestore (&tp->lock, flags); | |
2551 | } | |
2552 | ||
2553 | #ifdef CONFIG_PM | |
2554 | ||
2555 | static int rtl8139_suspend (struct pci_dev *pdev, pm_message_t state) | |
2556 | { | |
2557 | struct net_device *dev = pci_get_drvdata (pdev); | |
2558 | struct rtl8139_private *tp = netdev_priv(dev); | |
22f714b6 | 2559 | void __iomem *ioaddr = tp->mmio_addr; |
1da177e4 LT |
2560 | unsigned long flags; |
2561 | ||
2562 | pci_save_state (pdev); | |
2563 | ||
2564 | if (!netif_running (dev)) | |
2565 | return 0; | |
2566 | ||
2567 | netif_device_detach (dev); | |
2568 | ||
2569 | spin_lock_irqsave (&tp->lock, flags); | |
2570 | ||
2571 | /* Disable interrupts, stop Tx and Rx. */ | |
2572 | RTL_W16 (IntrMask, 0); | |
2573 | RTL_W8 (ChipCmd, 0); | |
2574 | ||
2575 | /* Update the error counts. */ | |
e1eac92e | 2576 | dev->stats.rx_missed_errors += RTL_R32 (RxMissed); |
1da177e4 LT |
2577 | RTL_W32 (RxMissed, 0); |
2578 | ||
2579 | spin_unlock_irqrestore (&tp->lock, flags); | |
2580 | ||
2581 | pci_set_power_state (pdev, PCI_D3hot); | |
2582 | ||
2583 | return 0; | |
2584 | } | |
2585 | ||
2586 | ||
2587 | static int rtl8139_resume (struct pci_dev *pdev) | |
2588 | { | |
2589 | struct net_device *dev = pci_get_drvdata (pdev); | |
2590 | ||
2591 | pci_restore_state (pdev); | |
2592 | if (!netif_running (dev)) | |
2593 | return 0; | |
2594 | pci_set_power_state (pdev, PCI_D0); | |
2595 | rtl8139_init_ring (dev); | |
2596 | rtl8139_hw_start (dev); | |
2597 | netif_device_attach (dev); | |
2598 | return 0; | |
2599 | } | |
2600 | ||
2601 | #endif /* CONFIG_PM */ | |
2602 | ||
2603 | ||
2604 | static struct pci_driver rtl8139_pci_driver = { | |
2605 | .name = DRV_NAME, | |
2606 | .id_table = rtl8139_pci_tbl, | |
2607 | .probe = rtl8139_init_one, | |
2608 | .remove = __devexit_p(rtl8139_remove_one), | |
2609 | #ifdef CONFIG_PM | |
2610 | .suspend = rtl8139_suspend, | |
2611 | .resume = rtl8139_resume, | |
2612 | #endif /* CONFIG_PM */ | |
2613 | }; | |
2614 | ||
2615 | ||
2616 | static int __init rtl8139_init_module (void) | |
2617 | { | |
2618 | /* when we're a module, we always print a version message, | |
2619 | * even if no 8139 board is found. | |
2620 | */ | |
2621 | #ifdef MODULE | |
2622 | printk (KERN_INFO RTL8139_DRIVER_NAME "\n"); | |
2623 | #endif | |
2624 | ||
29917620 | 2625 | return pci_register_driver(&rtl8139_pci_driver); |
1da177e4 LT |
2626 | } |
2627 | ||
2628 | ||
2629 | static void __exit rtl8139_cleanup_module (void) | |
2630 | { | |
2631 | pci_unregister_driver (&rtl8139_pci_driver); | |
2632 | } | |
2633 | ||
2634 | ||
2635 | module_init(rtl8139_init_module); | |
2636 | module_exit(rtl8139_cleanup_module); |