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1da177e4 LT |
1 | /* |
2 | * ni6510 (am7990 'lance' chip) driver for Linux-net-3 | |
3 | * BETAcode v0.71 (96/09/29) for 2.0.0 (or later) | |
4 | * copyrights (c) 1994,1995,1996 by M.Hipp | |
5 | * | |
6 | * This driver can handle the old ni6510 board and the newer ni6510 | |
7 | * EtherBlaster. (probably it also works with every full NE2100 | |
8 | * compatible card) | |
9 | * | |
1da177e4 LT |
10 | * driver probes: io: 0x360,0x300,0x320,0x340 / dma: 3,5,6,7 |
11 | * | |
12 | * This is an extension to the Linux operating system, and is covered by the | |
13 | * same GNU General Public License that covers the Linux-kernel. | |
14 | * | |
15 | * comments/bugs/suggestions can be sent to: | |
16 | * Michael Hipp | |
17 | * email: hippm@informatik.uni-tuebingen.de | |
18 | * | |
19 | * sources: | |
20 | * some things are from the 'ni6510-packet-driver for dos by Russ Nelson' | |
21 | * and from the original drivers by D.Becker | |
22 | * | |
23 | * known problems: | |
24 | * - on some PCI boards (including my own) the card/board/ISA-bridge has | |
25 | * problems with bus master DMA. This results in lotsa overruns. | |
26 | * It may help to '#define RCV_PARANOIA_CHECK' or try to #undef | |
27 | * the XMT and RCV_VIA_SKB option .. this reduces driver performance. | |
28 | * Or just play with your BIOS options to optimize ISA-DMA access. | |
29 | * Maybe you also wanna play with the LOW_PERFORAMCE and MID_PERFORMANCE | |
30 | * defines -> please report me your experience then | |
31 | * - Harald reported for ASUS SP3G mainboards, that you should use | |
32 | * the 'optimal settings' from the user's manual on page 3-12! | |
33 | * | |
34 | * credits: | |
35 | * thanx to Jason Sullivan for sending me a ni6510 card! | |
36 | * lot of debug runs with ASUS SP3G Boards (Intel Saturn) by Harald Koenig | |
37 | * | |
38 | * simple performance test: (486DX-33/Ni6510-EB receives from 486DX4-100/Ni6510-EB) | |
39 | * average: FTP -> 8384421 bytes received in 8.5 seconds | |
40 | * (no RCV_VIA_SKB,no XMT_VIA_SKB,PARANOIA_CHECK,4 XMIT BUFS, 8 RCV_BUFFS) | |
41 | * peak: FTP -> 8384421 bytes received in 7.5 seconds | |
42 | * (RCV_VIA_SKB,XMT_VIA_SKB,no PARANOIA_CHECK,1(!) XMIT BUF, 16 RCV BUFFS) | |
43 | */ | |
44 | ||
45 | /* | |
46 | * 99.Jun.8: added support for /proc/net/dev byte count for xosview (HK) | |
47 | * 96.Sept.29: virt_to_bus stuff added for new memory modell | |
48 | * 96.April.29: Added Harald Koenig's Patches (MH) | |
49 | * 96.April.13: enhanced error handling .. more tests (MH) | |
50 | * 96.April.5/6: a lot of performance tests. Got it stable now (hopefully) (MH) | |
51 | * 96.April.1: (no joke ;) .. added EtherBlaster and Module support (MH) | |
52 | * 96.Feb.19: fixed a few bugs .. cleanups .. tested for 1.3.66 (MH) | |
53 | * hopefully no more 16MB limit | |
54 | * | |
55 | * 95.Nov.18: multicast tweaked (AC). | |
56 | * | |
57 | * 94.Aug.22: changes in xmit_intr (ack more than one xmitted-packet), ni65_send_packet (p->lock) (MH) | |
58 | * | |
59 | * 94.July.16: fixed bugs in recv_skb and skb-alloc stuff (MH) | |
60 | */ | |
61 | ||
62 | #include <linux/kernel.h> | |
63 | #include <linux/string.h> | |
64 | #include <linux/errno.h> | |
65 | #include <linux/ioport.h> | |
66 | #include <linux/slab.h> | |
67 | #include <linux/interrupt.h> | |
68 | #include <linux/delay.h> | |
69 | #include <linux/init.h> | |
70 | #include <linux/netdevice.h> | |
71 | #include <linux/etherdevice.h> | |
72 | #include <linux/skbuff.h> | |
73 | #include <linux/module.h> | |
74 | #include <linux/bitops.h> | |
75 | ||
76 | #include <asm/io.h> | |
77 | #include <asm/dma.h> | |
78 | ||
79 | #include "ni65.h" | |
80 | ||
81 | /* | |
82 | * the current setting allows an acceptable performance | |
83 | * for 'RCV_PARANOIA_CHECK' read the 'known problems' part in | |
84 | * the header of this file | |
85 | * 'invert' the defines for max. performance. This may cause DMA problems | |
86 | * on some boards (e.g on my ASUS SP3G) | |
87 | */ | |
88 | #undef XMT_VIA_SKB | |
89 | #undef RCV_VIA_SKB | |
90 | #define RCV_PARANOIA_CHECK | |
91 | ||
92 | #define MID_PERFORMANCE | |
93 | ||
94 | #if defined( LOW_PERFORMANCE ) | |
95 | static int isa0=7,isa1=7,csr80=0x0c10; | |
96 | #elif defined( MID_PERFORMANCE ) | |
97 | static int isa0=5,isa1=5,csr80=0x2810; | |
98 | #else /* high performance */ | |
99 | static int isa0=4,isa1=4,csr80=0x0017; | |
100 | #endif | |
101 | ||
102 | /* | |
103 | * a few card/vendor specific defines | |
104 | */ | |
105 | #define NI65_ID0 0x00 | |
106 | #define NI65_ID1 0x55 | |
107 | #define NI65_EB_ID0 0x52 | |
108 | #define NI65_EB_ID1 0x44 | |
109 | #define NE2100_ID0 0x57 | |
110 | #define NE2100_ID1 0x57 | |
111 | ||
112 | #define PORT p->cmdr_addr | |
113 | ||
114 | /* | |
115 | * buffer configuration | |
116 | */ | |
117 | #if 1 | |
118 | #define RMDNUM 16 | |
119 | #define RMDNUMMASK 0x80000000 | |
120 | #else | |
121 | #define RMDNUM 8 | |
122 | #define RMDNUMMASK 0x60000000 /* log2(RMDNUM)<<29 */ | |
123 | #endif | |
124 | ||
125 | #if 0 | |
126 | #define TMDNUM 1 | |
127 | #define TMDNUMMASK 0x00000000 | |
128 | #else | |
129 | #define TMDNUM 4 | |
130 | #define TMDNUMMASK 0x40000000 /* log2(TMDNUM)<<29 */ | |
131 | #endif | |
132 | ||
133 | /* slightly oversized */ | |
134 | #define R_BUF_SIZE 1544 | |
135 | #define T_BUF_SIZE 1544 | |
136 | ||
137 | /* | |
138 | * lance register defines | |
139 | */ | |
140 | #define L_DATAREG 0x00 | |
141 | #define L_ADDRREG 0x02 | |
142 | #define L_RESET 0x04 | |
143 | #define L_CONFIG 0x05 | |
144 | #define L_BUSIF 0x06 | |
145 | ||
146 | /* | |
147 | * to access the lance/am7990-regs, you have to write | |
148 | * reg-number into L_ADDRREG, then you can access it using L_DATAREG | |
149 | */ | |
150 | #define CSR0 0x00 | |
151 | #define CSR1 0x01 | |
152 | #define CSR2 0x02 | |
153 | #define CSR3 0x03 | |
154 | ||
155 | #define INIT_RING_BEFORE_START 0x1 | |
156 | #define FULL_RESET_ON_ERROR 0x2 | |
157 | ||
158 | #if 0 | |
159 | #define writereg(val,reg) {outw(reg,PORT+L_ADDRREG);inw(PORT+L_ADDRREG); \ | |
160 | outw(val,PORT+L_DATAREG);inw(PORT+L_DATAREG);} | |
161 | #define readreg(reg) (outw(reg,PORT+L_ADDRREG),inw(PORT+L_ADDRREG),\ | |
162 | inw(PORT+L_DATAREG)) | |
163 | #if 0 | |
164 | #define writedatareg(val) {outw(val,PORT+L_DATAREG);inw(PORT+L_DATAREG);} | |
165 | #else | |
166 | #define writedatareg(val) { writereg(val,CSR0); } | |
167 | #endif | |
168 | #else | |
169 | #define writereg(val,reg) {outw(reg,PORT+L_ADDRREG);outw(val,PORT+L_DATAREG);} | |
170 | #define readreg(reg) (outw(reg,PORT+L_ADDRREG),inw(PORT+L_DATAREG)) | |
171 | #define writedatareg(val) { writereg(val,CSR0); } | |
172 | #endif | |
173 | ||
174 | static unsigned char ni_vendor[] = { 0x02,0x07,0x01 }; | |
175 | ||
176 | static struct card { | |
177 | unsigned char id0,id1; | |
178 | short id_offset; | |
179 | short total_size; | |
180 | short cmd_offset; | |
181 | short addr_offset; | |
182 | unsigned char *vendor_id; | |
183 | char *cardname; | |
64b33619 | 184 | unsigned long config; |
1da177e4 LT |
185 | } cards[] = { |
186 | { | |
187 | .id0 = NI65_ID0, | |
188 | .id1 = NI65_ID1, | |
189 | .id_offset = 0x0e, | |
190 | .total_size = 0x10, | |
191 | .cmd_offset = 0x0, | |
192 | .addr_offset = 0x8, | |
193 | .vendor_id = ni_vendor, | |
194 | .cardname = "ni6510", | |
195 | .config = 0x1, | |
196 | }, | |
197 | { | |
198 | .id0 = NI65_EB_ID0, | |
199 | .id1 = NI65_EB_ID1, | |
200 | .id_offset = 0x0e, | |
201 | .total_size = 0x18, | |
202 | .cmd_offset = 0x10, | |
203 | .addr_offset = 0x0, | |
204 | .vendor_id = ni_vendor, | |
205 | .cardname = "ni6510 EtherBlaster", | |
206 | .config = 0x2, | |
207 | }, | |
208 | { | |
209 | .id0 = NE2100_ID0, | |
210 | .id1 = NE2100_ID1, | |
211 | .id_offset = 0x0e, | |
212 | .total_size = 0x18, | |
213 | .cmd_offset = 0x10, | |
214 | .addr_offset = 0x0, | |
215 | .vendor_id = NULL, | |
216 | .cardname = "generic NE2100", | |
217 | .config = 0x0, | |
218 | }, | |
219 | }; | |
220 | #define NUM_CARDS 3 | |
221 | ||
222 | struct priv | |
223 | { | |
224 | struct rmd rmdhead[RMDNUM]; | |
225 | struct tmd tmdhead[TMDNUM]; | |
226 | struct init_block ib; | |
227 | int rmdnum; | |
228 | int tmdnum,tmdlast; | |
229 | #ifdef RCV_VIA_SKB | |
230 | struct sk_buff *recv_skb[RMDNUM]; | |
231 | #else | |
232 | void *recvbounce[RMDNUM]; | |
233 | #endif | |
234 | #ifdef XMT_VIA_SKB | |
235 | struct sk_buff *tmd_skb[TMDNUM]; | |
236 | #endif | |
237 | void *tmdbounce[TMDNUM]; | |
238 | int tmdbouncenum; | |
239 | int lock,xmit_queued; | |
c6bca821 | 240 | |
1da177e4 LT |
241 | void *self; |
242 | int cmdr_addr; | |
243 | int cardno; | |
244 | int features; | |
245 | spinlock_t ring_lock; | |
246 | }; | |
247 | ||
248 | static int ni65_probe1(struct net_device *dev,int); | |
7d12e780 | 249 | static irqreturn_t ni65_interrupt(int irq, void * dev_id); |
1da177e4 LT |
250 | static void ni65_recv_intr(struct net_device *dev,int); |
251 | static void ni65_xmit_intr(struct net_device *dev,int); | |
252 | static int ni65_open(struct net_device *dev); | |
253 | static int ni65_lance_reinit(struct net_device *dev); | |
254 | static void ni65_init_lance(struct priv *p,unsigned char*,int,int); | |
255 | static int ni65_send_packet(struct sk_buff *skb, struct net_device *dev); | |
256 | static void ni65_timeout(struct net_device *dev); | |
257 | static int ni65_close(struct net_device *dev); | |
258 | static int ni65_alloc_buffer(struct net_device *dev); | |
259 | static void ni65_free_buffer(struct priv *p); | |
1da177e4 LT |
260 | static void set_multicast_list(struct net_device *dev); |
261 | ||
262 | static int irqtab[] __initdata = { 9,12,15,5 }; /* irq config-translate */ | |
263 | static int dmatab[] __initdata = { 0,3,5,6,7 }; /* dma config-translate and autodetect */ | |
264 | ||
265 | static int debuglevel = 1; | |
266 | ||
267 | /* | |
268 | * set 'performance' registers .. we must STOP lance for that | |
269 | */ | |
270 | static void ni65_set_performance(struct priv *p) | |
271 | { | |
272 | writereg(CSR0_STOP | CSR0_CLRALL,CSR0); /* STOP */ | |
273 | ||
274 | if( !(cards[p->cardno].config & 0x02) ) | |
275 | return; | |
276 | ||
277 | outw(80,PORT+L_ADDRREG); | |
278 | if(inw(PORT+L_ADDRREG) != 80) | |
279 | return; | |
280 | ||
281 | writereg( (csr80 & 0x3fff) ,80); /* FIFO watermarks */ | |
282 | outw(0,PORT+L_ADDRREG); | |
283 | outw((short)isa0,PORT+L_BUSIF); /* write ISA 0: DMA_R : isa0 * 50ns */ | |
284 | outw(1,PORT+L_ADDRREG); | |
285 | outw((short)isa1,PORT+L_BUSIF); /* write ISA 1: DMA_W : isa1 * 50ns */ | |
286 | ||
287 | outw(CSR0,PORT+L_ADDRREG); /* switch back to CSR0 */ | |
288 | } | |
289 | ||
290 | /* | |
291 | * open interface (up) | |
292 | */ | |
293 | static int ni65_open(struct net_device *dev) | |
294 | { | |
826dd0e1 | 295 | struct priv *p = dev->ml_priv; |
1da177e4 LT |
296 | int irqval = request_irq(dev->irq, &ni65_interrupt,0, |
297 | cards[p->cardno].cardname,dev); | |
298 | if (irqval) { | |
299 | printk(KERN_ERR "%s: unable to get IRQ %d (irqval=%d).\n", | |
300 | dev->name,dev->irq, irqval); | |
301 | return -EAGAIN; | |
302 | } | |
303 | ||
304 | if(ni65_lance_reinit(dev)) | |
305 | { | |
306 | netif_start_queue(dev); | |
307 | return 0; | |
308 | } | |
309 | else | |
310 | { | |
311 | free_irq(dev->irq,dev); | |
312 | return -EAGAIN; | |
313 | } | |
314 | } | |
315 | ||
316 | /* | |
317 | * close interface (down) | |
318 | */ | |
319 | static int ni65_close(struct net_device *dev) | |
320 | { | |
826dd0e1 | 321 | struct priv *p = dev->ml_priv; |
1da177e4 LT |
322 | |
323 | netif_stop_queue(dev); | |
6aa20a22 | 324 | |
1da177e4 LT |
325 | outw(inw(PORT+L_RESET),PORT+L_RESET); /* that's the hard way */ |
326 | ||
327 | #ifdef XMT_VIA_SKB | |
328 | { | |
329 | int i; | |
330 | for(i=0;i<TMDNUM;i++) | |
331 | { | |
332 | if(p->tmd_skb[i]) { | |
333 | dev_kfree_skb(p->tmd_skb[i]); | |
334 | p->tmd_skb[i] = NULL; | |
335 | } | |
336 | } | |
337 | } | |
338 | #endif | |
339 | free_irq(dev->irq,dev); | |
340 | return 0; | |
341 | } | |
342 | ||
343 | static void cleanup_card(struct net_device *dev) | |
344 | { | |
826dd0e1 | 345 | struct priv *p = dev->ml_priv; |
1da177e4 LT |
346 | disable_dma(dev->dma); |
347 | free_dma(dev->dma); | |
348 | release_region(dev->base_addr, cards[p->cardno].total_size); | |
349 | ni65_free_buffer(p); | |
350 | } | |
351 | ||
352 | /* set: io,irq,dma or set it when calling insmod */ | |
353 | static int irq; | |
354 | static int io; | |
355 | static int dma; | |
356 | ||
357 | /* | |
358 | * Probe The Card (not the lance-chip) | |
359 | */ | |
360 | struct net_device * __init ni65_probe(int unit) | |
361 | { | |
362 | struct net_device *dev = alloc_etherdev(0); | |
363 | static int ports[] = {0x360,0x300,0x320,0x340, 0}; | |
364 | int *port; | |
365 | int err = 0; | |
366 | ||
367 | if (!dev) | |
368 | return ERR_PTR(-ENOMEM); | |
369 | ||
370 | if (unit >= 0) { | |
371 | sprintf(dev->name, "eth%d", unit); | |
372 | netdev_boot_setup_check(dev); | |
373 | irq = dev->irq; | |
374 | dma = dev->dma; | |
375 | } else { | |
376 | dev->base_addr = io; | |
377 | } | |
378 | ||
379 | if (dev->base_addr > 0x1ff) { /* Check a single specified location. */ | |
380 | err = ni65_probe1(dev, dev->base_addr); | |
381 | } else if (dev->base_addr > 0) { /* Don't probe at all. */ | |
382 | err = -ENXIO; | |
383 | } else { | |
384 | for (port = ports; *port && ni65_probe1(dev, *port); port++) | |
385 | ; | |
386 | if (!*port) | |
387 | err = -ENODEV; | |
388 | } | |
389 | if (err) | |
390 | goto out; | |
391 | ||
392 | err = register_netdev(dev); | |
393 | if (err) | |
394 | goto out1; | |
395 | return dev; | |
396 | out1: | |
397 | cleanup_card(dev); | |
398 | out: | |
399 | free_netdev(dev); | |
400 | return ERR_PTR(err); | |
401 | } | |
402 | ||
c6bca821 SH |
403 | static const struct net_device_ops ni65_netdev_ops = { |
404 | .ndo_open = ni65_open, | |
405 | .ndo_stop = ni65_close, | |
406 | .ndo_start_xmit = ni65_send_packet, | |
407 | .ndo_tx_timeout = ni65_timeout, | |
408 | .ndo_set_multicast_list = set_multicast_list, | |
409 | .ndo_change_mtu = eth_change_mtu, | |
410 | .ndo_set_mac_address = eth_mac_addr, | |
411 | .ndo_validate_addr = eth_validate_addr, | |
412 | }; | |
413 | ||
1da177e4 LT |
414 | /* |
415 | * this is the real card probe .. | |
416 | */ | |
417 | static int __init ni65_probe1(struct net_device *dev,int ioaddr) | |
418 | { | |
419 | int i,j; | |
420 | struct priv *p; | |
421 | unsigned long flags; | |
422 | ||
423 | dev->irq = irq; | |
424 | dev->dma = dma; | |
425 | ||
426 | for(i=0;i<NUM_CARDS;i++) { | |
427 | if(!request_region(ioaddr, cards[i].total_size, cards[i].cardname)) | |
428 | continue; | |
429 | if(cards[i].id_offset >= 0) { | |
430 | if(inb(ioaddr+cards[i].id_offset+0) != cards[i].id0 || | |
431 | inb(ioaddr+cards[i].id_offset+1) != cards[i].id1) { | |
432 | release_region(ioaddr, cards[i].total_size); | |
433 | continue; | |
434 | } | |
435 | } | |
436 | if(cards[i].vendor_id) { | |
437 | for(j=0;j<3;j++) | |
438 | if(inb(ioaddr+cards[i].addr_offset+j) != cards[i].vendor_id[j]) { | |
439 | release_region(ioaddr, cards[i].total_size); | |
440 | continue; | |
441 | } | |
442 | } | |
443 | break; | |
444 | } | |
445 | if(i == NUM_CARDS) | |
446 | return -ENODEV; | |
447 | ||
448 | for(j=0;j<6;j++) | |
449 | dev->dev_addr[j] = inb(ioaddr+cards[i].addr_offset+j); | |
450 | ||
451 | if( (j=ni65_alloc_buffer(dev)) < 0) { | |
452 | release_region(ioaddr, cards[i].total_size); | |
453 | return j; | |
454 | } | |
826dd0e1 | 455 | p = dev->ml_priv; |
1da177e4 LT |
456 | p->cmdr_addr = ioaddr + cards[i].cmd_offset; |
457 | p->cardno = i; | |
458 | spin_lock_init(&p->ring_lock); | |
459 | ||
460 | printk(KERN_INFO "%s: %s found at %#3x, ", dev->name, cards[p->cardno].cardname , ioaddr); | |
461 | ||
462 | outw(inw(PORT+L_RESET),PORT+L_RESET); /* first: reset the card */ | |
463 | if( (j=readreg(CSR0)) != 0x4) { | |
464 | printk("failed.\n"); | |
465 | printk(KERN_ERR "%s: Can't RESET card: %04x\n", dev->name, j); | |
466 | ni65_free_buffer(p); | |
467 | release_region(ioaddr, cards[p->cardno].total_size); | |
468 | return -EAGAIN; | |
469 | } | |
470 | ||
471 | outw(88,PORT+L_ADDRREG); | |
472 | if(inw(PORT+L_ADDRREG) == 88) { | |
473 | unsigned long v; | |
474 | v = inw(PORT+L_DATAREG); | |
475 | v <<= 16; | |
476 | outw(89,PORT+L_ADDRREG); | |
477 | v |= inw(PORT+L_DATAREG); | |
478 | printk("Version %#08lx, ",v); | |
479 | p->features = INIT_RING_BEFORE_START; | |
480 | } | |
481 | else { | |
482 | printk("ancient LANCE, "); | |
483 | p->features = 0x0; | |
484 | } | |
485 | ||
486 | if(test_bit(0,&cards[i].config)) { | |
487 | dev->irq = irqtab[(inw(ioaddr+L_CONFIG)>>2)&3]; | |
488 | dev->dma = dmatab[inw(ioaddr+L_CONFIG)&3]; | |
489 | printk("IRQ %d (from card), DMA %d (from card).\n",dev->irq,dev->dma); | |
490 | } | |
491 | else { | |
492 | if(dev->dma == 0) { | |
493 | /* 'stuck test' from lance.c */ | |
416c6f90 HE |
494 | unsigned long dma_channels = |
495 | ((inb(DMA1_STAT_REG) >> 4) & 0x0f) | |
496 | | (inb(DMA2_STAT_REG) & 0xf0); | |
1da177e4 LT |
497 | for(i=1;i<5;i++) { |
498 | int dma = dmatab[i]; | |
499 | if(test_bit(dma,&dma_channels) || request_dma(dma,"ni6510")) | |
500 | continue; | |
6aa20a22 | 501 | |
1da177e4 LT |
502 | flags=claim_dma_lock(); |
503 | disable_dma(dma); | |
504 | set_dma_mode(dma,DMA_MODE_CASCADE); | |
505 | enable_dma(dma); | |
506 | release_dma_lock(flags); | |
6aa20a22 | 507 | |
1da177e4 | 508 | ni65_init_lance(p,dev->dev_addr,0,0); /* trigger memory access */ |
6aa20a22 | 509 | |
1da177e4 LT |
510 | flags=claim_dma_lock(); |
511 | disable_dma(dma); | |
512 | free_dma(dma); | |
513 | release_dma_lock(flags); | |
6aa20a22 | 514 | |
1da177e4 LT |
515 | if(readreg(CSR0) & CSR0_IDON) |
516 | break; | |
517 | } | |
518 | if(i == 5) { | |
519 | printk("failed.\n"); | |
520 | printk(KERN_ERR "%s: Can't detect DMA channel!\n", dev->name); | |
521 | ni65_free_buffer(p); | |
522 | release_region(ioaddr, cards[p->cardno].total_size); | |
523 | return -EAGAIN; | |
524 | } | |
525 | dev->dma = dmatab[i]; | |
526 | printk("DMA %d (autodetected), ",dev->dma); | |
527 | } | |
528 | else | |
529 | printk("DMA %d (assigned), ",dev->dma); | |
530 | ||
531 | if(dev->irq < 2) | |
532 | { | |
533 | unsigned long irq_mask; | |
534 | ||
535 | ni65_init_lance(p,dev->dev_addr,0,0); | |
536 | irq_mask = probe_irq_on(); | |
537 | writereg(CSR0_INIT|CSR0_INEA,CSR0); /* trigger interrupt */ | |
538 | msleep(20); | |
539 | dev->irq = probe_irq_off(irq_mask); | |
540 | if(!dev->irq) | |
541 | { | |
542 | printk("Failed to detect IRQ line!\n"); | |
543 | ni65_free_buffer(p); | |
544 | release_region(ioaddr, cards[p->cardno].total_size); | |
545 | return -EAGAIN; | |
546 | } | |
547 | printk("IRQ %d (autodetected).\n",dev->irq); | |
548 | } | |
549 | else | |
550 | printk("IRQ %d (assigned).\n",dev->irq); | |
551 | } | |
552 | ||
553 | if(request_dma(dev->dma, cards[p->cardno].cardname ) != 0) | |
554 | { | |
555 | printk(KERN_ERR "%s: Can't request dma-channel %d\n",dev->name,(int) dev->dma); | |
556 | ni65_free_buffer(p); | |
557 | release_region(ioaddr, cards[p->cardno].total_size); | |
558 | return -EAGAIN; | |
559 | } | |
560 | ||
561 | dev->base_addr = ioaddr; | |
c6bca821 | 562 | dev->netdev_ops = &ni65_netdev_ops; |
1da177e4 | 563 | dev->watchdog_timeo = HZ/2; |
c6bca821 | 564 | |
1da177e4 LT |
565 | return 0; /* everything is OK */ |
566 | } | |
567 | ||
568 | /* | |
569 | * set lance register and trigger init | |
570 | */ | |
571 | static void ni65_init_lance(struct priv *p,unsigned char *daddr,int filter,int mode) | |
572 | { | |
573 | int i; | |
574 | u32 pib; | |
575 | ||
576 | writereg(CSR0_CLRALL|CSR0_STOP,CSR0); | |
577 | ||
578 | for(i=0;i<6;i++) | |
579 | p->ib.eaddr[i] = daddr[i]; | |
580 | ||
581 | for(i=0;i<8;i++) | |
582 | p->ib.filter[i] = filter; | |
583 | p->ib.mode = mode; | |
584 | ||
585 | p->ib.trp = (u32) isa_virt_to_bus(p->tmdhead) | TMDNUMMASK; | |
586 | p->ib.rrp = (u32) isa_virt_to_bus(p->rmdhead) | RMDNUMMASK; | |
587 | writereg(0,CSR3); /* busmaster/no word-swap */ | |
588 | pib = (u32) isa_virt_to_bus(&p->ib); | |
589 | writereg(pib & 0xffff,CSR1); | |
590 | writereg(pib >> 16,CSR2); | |
591 | ||
592 | writereg(CSR0_INIT,CSR0); /* this changes L_ADDRREG to CSR0 */ | |
593 | ||
594 | for(i=0;i<32;i++) | |
595 | { | |
596 | mdelay(4); | |
597 | if(inw(PORT+L_DATAREG) & (CSR0_IDON | CSR0_MERR) ) | |
598 | break; /* init ok ? */ | |
599 | } | |
600 | } | |
601 | ||
602 | /* | |
603 | * allocate memory area and check the 16MB border | |
604 | */ | |
605 | static void *ni65_alloc_mem(struct net_device *dev,char *what,int size,int type) | |
606 | { | |
607 | struct sk_buff *skb=NULL; | |
608 | unsigned char *ptr; | |
609 | void *ret; | |
610 | ||
611 | if(type) { | |
612 | ret = skb = alloc_skb(2+16+size,GFP_KERNEL|GFP_DMA); | |
613 | if(!skb) { | |
614 | printk(KERN_WARNING "%s: unable to allocate %s memory.\n",dev->name,what); | |
615 | return NULL; | |
616 | } | |
1da177e4 LT |
617 | skb_reserve(skb,2+16); |
618 | skb_put(skb,R_BUF_SIZE); /* grab the whole space .. (not necessary) */ | |
619 | ptr = skb->data; | |
620 | } | |
621 | else { | |
622 | ret = ptr = kmalloc(T_BUF_SIZE,GFP_KERNEL | GFP_DMA); | |
623 | if(!ret) { | |
624 | printk(KERN_WARNING "%s: unable to allocate %s memory.\n",dev->name,what); | |
625 | return NULL; | |
626 | } | |
627 | } | |
628 | if( (u32) virt_to_phys(ptr+size) > 0x1000000) { | |
629 | printk(KERN_WARNING "%s: unable to allocate %s memory in lower 16MB!\n",dev->name,what); | |
630 | if(type) | |
631 | kfree_skb(skb); | |
632 | else | |
633 | kfree(ptr); | |
634 | return NULL; | |
635 | } | |
636 | return ret; | |
637 | } | |
638 | ||
639 | /* | |
640 | * allocate all memory structures .. send/recv buffers etc ... | |
641 | */ | |
642 | static int ni65_alloc_buffer(struct net_device *dev) | |
643 | { | |
644 | unsigned char *ptr; | |
645 | struct priv *p; | |
646 | int i; | |
647 | ||
648 | /* | |
649 | * we need 8-aligned memory .. | |
650 | */ | |
651 | ptr = ni65_alloc_mem(dev,"BUFFER",sizeof(struct priv)+8,0); | |
652 | if(!ptr) | |
653 | return -ENOMEM; | |
654 | ||
826dd0e1 WC |
655 | p = dev->ml_priv = (struct priv *) (((unsigned long) ptr + 7) & ~0x7); |
656 | memset((char *)p, 0, sizeof(struct priv)); | |
1da177e4 LT |
657 | p->self = ptr; |
658 | ||
659 | for(i=0;i<TMDNUM;i++) | |
660 | { | |
661 | #ifdef XMT_VIA_SKB | |
662 | p->tmd_skb[i] = NULL; | |
663 | #endif | |
664 | p->tmdbounce[i] = ni65_alloc_mem(dev,"XMIT",T_BUF_SIZE,0); | |
665 | if(!p->tmdbounce[i]) { | |
666 | ni65_free_buffer(p); | |
667 | return -ENOMEM; | |
668 | } | |
669 | } | |
670 | ||
671 | for(i=0;i<RMDNUM;i++) | |
672 | { | |
673 | #ifdef RCV_VIA_SKB | |
674 | p->recv_skb[i] = ni65_alloc_mem(dev,"RECV",R_BUF_SIZE,1); | |
675 | if(!p->recv_skb[i]) { | |
676 | ni65_free_buffer(p); | |
677 | return -ENOMEM; | |
678 | } | |
679 | #else | |
680 | p->recvbounce[i] = ni65_alloc_mem(dev,"RECV",R_BUF_SIZE,0); | |
681 | if(!p->recvbounce[i]) { | |
682 | ni65_free_buffer(p); | |
683 | return -ENOMEM; | |
684 | } | |
685 | #endif | |
686 | } | |
687 | ||
688 | return 0; /* everything is OK */ | |
689 | } | |
690 | ||
691 | /* | |
692 | * free buffers and private struct | |
693 | */ | |
694 | static void ni65_free_buffer(struct priv *p) | |
695 | { | |
696 | int i; | |
697 | ||
698 | if(!p) | |
699 | return; | |
700 | ||
701 | for(i=0;i<TMDNUM;i++) { | |
b4558ea9 | 702 | kfree(p->tmdbounce[i]); |
1da177e4 LT |
703 | #ifdef XMT_VIA_SKB |
704 | if(p->tmd_skb[i]) | |
705 | dev_kfree_skb(p->tmd_skb[i]); | |
706 | #endif | |
707 | } | |
708 | ||
709 | for(i=0;i<RMDNUM;i++) | |
710 | { | |
711 | #ifdef RCV_VIA_SKB | |
712 | if(p->recv_skb[i]) | |
713 | dev_kfree_skb(p->recv_skb[i]); | |
714 | #else | |
b4558ea9 | 715 | kfree(p->recvbounce[i]); |
1da177e4 LT |
716 | #endif |
717 | } | |
b4558ea9 | 718 | kfree(p->self); |
1da177e4 LT |
719 | } |
720 | ||
721 | ||
722 | /* | |
723 | * stop and (re)start lance .. e.g after an error | |
724 | */ | |
725 | static void ni65_stop_start(struct net_device *dev,struct priv *p) | |
726 | { | |
727 | int csr0 = CSR0_INEA; | |
728 | ||
729 | writedatareg(CSR0_STOP); | |
730 | ||
731 | if(debuglevel > 1) | |
732 | printk(KERN_DEBUG "ni65_stop_start\n"); | |
733 | ||
734 | if(p->features & INIT_RING_BEFORE_START) { | |
735 | int i; | |
736 | #ifdef XMT_VIA_SKB | |
737 | struct sk_buff *skb_save[TMDNUM]; | |
738 | #endif | |
739 | unsigned long buffer[TMDNUM]; | |
740 | short blen[TMDNUM]; | |
741 | ||
742 | if(p->xmit_queued) { | |
743 | while(1) { | |
744 | if((p->tmdhead[p->tmdlast].u.s.status & XMIT_OWN)) | |
745 | break; | |
746 | p->tmdlast = (p->tmdlast + 1) & (TMDNUM-1); | |
747 | if(p->tmdlast == p->tmdnum) | |
748 | break; | |
749 | } | |
750 | } | |
751 | ||
752 | for(i=0;i<TMDNUM;i++) { | |
753 | struct tmd *tmdp = p->tmdhead + i; | |
754 | #ifdef XMT_VIA_SKB | |
755 | skb_save[i] = p->tmd_skb[i]; | |
756 | #endif | |
757 | buffer[i] = (u32) isa_bus_to_virt(tmdp->u.buffer); | |
758 | blen[i] = tmdp->blen; | |
759 | tmdp->u.s.status = 0x0; | |
760 | } | |
761 | ||
762 | for(i=0;i<RMDNUM;i++) { | |
763 | struct rmd *rmdp = p->rmdhead + i; | |
764 | rmdp->u.s.status = RCV_OWN; | |
765 | } | |
766 | p->tmdnum = p->xmit_queued = 0; | |
767 | writedatareg(CSR0_STRT | csr0); | |
768 | ||
769 | for(i=0;i<TMDNUM;i++) { | |
770 | int num = (i + p->tmdlast) & (TMDNUM-1); | |
771 | p->tmdhead[i].u.buffer = (u32) isa_virt_to_bus((char *)buffer[num]); /* status is part of buffer field */ | |
772 | p->tmdhead[i].blen = blen[num]; | |
773 | if(p->tmdhead[i].u.s.status & XMIT_OWN) { | |
774 | p->tmdnum = (p->tmdnum + 1) & (TMDNUM-1); | |
775 | p->xmit_queued = 1; | |
776 | writedatareg(CSR0_TDMD | CSR0_INEA | csr0); | |
777 | } | |
778 | #ifdef XMT_VIA_SKB | |
779 | p->tmd_skb[i] = skb_save[num]; | |
780 | #endif | |
781 | } | |
782 | p->rmdnum = p->tmdlast = 0; | |
783 | if(!p->lock) | |
784 | if (p->tmdnum || !p->xmit_queued) | |
785 | netif_wake_queue(dev); | |
786 | dev->trans_start = jiffies; | |
787 | } | |
788 | else | |
789 | writedatareg(CSR0_STRT | csr0); | |
790 | } | |
791 | ||
792 | /* | |
793 | * init lance (write init-values .. init-buffers) (open-helper) | |
794 | */ | |
795 | static int ni65_lance_reinit(struct net_device *dev) | |
796 | { | |
797 | int i; | |
826dd0e1 | 798 | struct priv *p = dev->ml_priv; |
1da177e4 LT |
799 | unsigned long flags; |
800 | ||
801 | p->lock = 0; | |
802 | p->xmit_queued = 0; | |
803 | ||
804 | flags=claim_dma_lock(); | |
805 | disable_dma(dev->dma); /* I've never worked with dma, but we do it like the packetdriver */ | |
806 | set_dma_mode(dev->dma,DMA_MODE_CASCADE); | |
807 | enable_dma(dev->dma); | |
808 | release_dma_lock(flags); | |
809 | ||
810 | outw(inw(PORT+L_RESET),PORT+L_RESET); /* first: reset the card */ | |
811 | if( (i=readreg(CSR0) ) != 0x4) | |
812 | { | |
813 | printk(KERN_ERR "%s: can't RESET %s card: %04x\n",dev->name, | |
814 | cards[p->cardno].cardname,(int) i); | |
815 | flags=claim_dma_lock(); | |
816 | disable_dma(dev->dma); | |
817 | release_dma_lock(flags); | |
818 | return 0; | |
819 | } | |
820 | ||
821 | p->rmdnum = p->tmdnum = p->tmdlast = p->tmdbouncenum = 0; | |
822 | for(i=0;i<TMDNUM;i++) | |
823 | { | |
824 | struct tmd *tmdp = p->tmdhead + i; | |
825 | #ifdef XMT_VIA_SKB | |
826 | if(p->tmd_skb[i]) { | |
827 | dev_kfree_skb(p->tmd_skb[i]); | |
828 | p->tmd_skb[i] = NULL; | |
829 | } | |
830 | #endif | |
831 | tmdp->u.buffer = 0x0; | |
832 | tmdp->u.s.status = XMIT_START | XMIT_END; | |
833 | tmdp->blen = tmdp->status2 = 0; | |
834 | } | |
835 | ||
836 | for(i=0;i<RMDNUM;i++) | |
837 | { | |
838 | struct rmd *rmdp = p->rmdhead + i; | |
839 | #ifdef RCV_VIA_SKB | |
840 | rmdp->u.buffer = (u32) isa_virt_to_bus(p->recv_skb[i]->data); | |
841 | #else | |
842 | rmdp->u.buffer = (u32) isa_virt_to_bus(p->recvbounce[i]); | |
843 | #endif | |
844 | rmdp->blen = -(R_BUF_SIZE-8); | |
845 | rmdp->mlen = 0; | |
846 | rmdp->u.s.status = RCV_OWN; | |
847 | } | |
848 | ||
849 | if(dev->flags & IFF_PROMISC) | |
850 | ni65_init_lance(p,dev->dev_addr,0x00,M_PROM); | |
851 | else if(dev->mc_count || dev->flags & IFF_ALLMULTI) | |
852 | ni65_init_lance(p,dev->dev_addr,0xff,0x0); | |
853 | else | |
854 | ni65_init_lance(p,dev->dev_addr,0x00,0x00); | |
855 | ||
856 | /* | |
857 | * ni65_set_lance_mem() sets L_ADDRREG to CSR0 | |
858 | * NOW, WE WILL NEVER CHANGE THE L_ADDRREG, CSR0 IS ALWAYS SELECTED | |
859 | */ | |
860 | ||
861 | if(inw(PORT+L_DATAREG) & CSR0_IDON) { | |
862 | ni65_set_performance(p); | |
863 | /* init OK: start lance , enable interrupts */ | |
864 | writedatareg(CSR0_CLRALL | CSR0_INEA | CSR0_STRT); | |
865 | return 1; /* ->OK */ | |
866 | } | |
867 | printk(KERN_ERR "%s: can't init lance, status: %04x\n",dev->name,(int) inw(PORT+L_DATAREG)); | |
868 | flags=claim_dma_lock(); | |
869 | disable_dma(dev->dma); | |
870 | release_dma_lock(flags); | |
871 | return 0; /* ->Error */ | |
872 | } | |
873 | ||
874 | /* | |
875 | * interrupt handler | |
876 | */ | |
7d12e780 | 877 | static irqreturn_t ni65_interrupt(int irq, void * dev_id) |
1da177e4 LT |
878 | { |
879 | int csr0 = 0; | |
880 | struct net_device *dev = dev_id; | |
881 | struct priv *p; | |
882 | int bcnt = 32; | |
883 | ||
826dd0e1 | 884 | p = dev->ml_priv; |
1da177e4 LT |
885 | |
886 | spin_lock(&p->ring_lock); | |
6aa20a22 | 887 | |
1da177e4 LT |
888 | while(--bcnt) { |
889 | csr0 = inw(PORT+L_DATAREG); | |
890 | ||
891 | #if 0 | |
892 | writedatareg( (csr0 & CSR0_CLRALL) ); /* ack interrupts, disable int. */ | |
893 | #else | |
894 | writedatareg( (csr0 & CSR0_CLRALL) | CSR0_INEA ); /* ack interrupts, interrupts enabled */ | |
895 | #endif | |
896 | ||
897 | if(!(csr0 & (CSR0_ERR | CSR0_RINT | CSR0_TINT))) | |
898 | break; | |
899 | ||
900 | if(csr0 & CSR0_RINT) /* RECV-int? */ | |
901 | ni65_recv_intr(dev,csr0); | |
902 | if(csr0 & CSR0_TINT) /* XMIT-int? */ | |
903 | ni65_xmit_intr(dev,csr0); | |
904 | ||
905 | if(csr0 & CSR0_ERR) | |
906 | { | |
1da177e4 LT |
907 | if(debuglevel > 1) |
908 | printk(KERN_ERR "%s: general error: %04x.\n",dev->name,csr0); | |
909 | if(csr0 & CSR0_BABL) | |
c6bca821 | 910 | dev->stats.tx_errors++; |
1da177e4 LT |
911 | if(csr0 & CSR0_MISS) { |
912 | int i; | |
913 | for(i=0;i<RMDNUM;i++) | |
914 | printk("%02x ",p->rmdhead[i].u.s.status); | |
915 | printk("\n"); | |
c6bca821 | 916 | dev->stats.rx_errors++; |
1da177e4 LT |
917 | } |
918 | if(csr0 & CSR0_MERR) { | |
919 | if(debuglevel > 1) | |
920 | printk(KERN_ERR "%s: Ooops .. memory error: %04x.\n",dev->name,csr0); | |
921 | ni65_stop_start(dev,p); | |
922 | } | |
923 | } | |
924 | } | |
925 | ||
926 | #ifdef RCV_PARANOIA_CHECK | |
927 | { | |
928 | int j; | |
929 | for(j=0;j<RMDNUM;j++) | |
930 | { | |
fbf97891 | 931 | int i, num2; |
1da177e4 LT |
932 | for(i=RMDNUM-1;i>0;i--) { |
933 | num2 = (p->rmdnum + i) & (RMDNUM-1); | |
934 | if(!(p->rmdhead[num2].u.s.status & RCV_OWN)) | |
935 | break; | |
936 | } | |
937 | ||
938 | if(i) { | |
fbf97891 | 939 | int k, num1; |
1da177e4 LT |
940 | for(k=0;k<RMDNUM;k++) { |
941 | num1 = (p->rmdnum + k) & (RMDNUM-1); | |
942 | if(!(p->rmdhead[num1].u.s.status & RCV_OWN)) | |
943 | break; | |
944 | } | |
945 | if(!k) | |
946 | break; | |
947 | ||
948 | if(debuglevel > 0) | |
949 | { | |
950 | char buf[256],*buf1; | |
1da177e4 LT |
951 | buf1 = buf; |
952 | for(k=0;k<RMDNUM;k++) { | |
953 | sprintf(buf1,"%02x ",(p->rmdhead[k].u.s.status)); /* & RCV_OWN) ); */ | |
954 | buf1 += 3; | |
955 | } | |
956 | *buf1 = 0; | |
957 | printk(KERN_ERR "%s: Ooops, receive ring corrupted %2d %2d | %s\n",dev->name,p->rmdnum,i,buf); | |
958 | } | |
959 | ||
960 | p->rmdnum = num1; | |
961 | ni65_recv_intr(dev,csr0); | |
962 | if((p->rmdhead[num2].u.s.status & RCV_OWN)) | |
963 | break; /* ok, we are 'in sync' again */ | |
964 | } | |
965 | else | |
966 | break; | |
967 | } | |
968 | } | |
969 | #endif | |
970 | ||
971 | if( (csr0 & (CSR0_RXON | CSR0_TXON)) != (CSR0_RXON | CSR0_TXON) ) { | |
972 | printk(KERN_DEBUG "%s: RX or TX was offline -> restart\n",dev->name); | |
973 | ni65_stop_start(dev,p); | |
974 | } | |
975 | else | |
976 | writedatareg(CSR0_INEA); | |
977 | ||
978 | spin_unlock(&p->ring_lock); | |
979 | return IRQ_HANDLED; | |
980 | } | |
981 | ||
982 | /* | |
983 | * We have received an Xmit-Interrupt .. | |
984 | * send a new packet if necessary | |
985 | */ | |
986 | static void ni65_xmit_intr(struct net_device *dev,int csr0) | |
987 | { | |
826dd0e1 | 988 | struct priv *p = dev->ml_priv; |
1da177e4 LT |
989 | |
990 | while(p->xmit_queued) | |
991 | { | |
992 | struct tmd *tmdp = p->tmdhead + p->tmdlast; | |
993 | int tmdstat = tmdp->u.s.status; | |
994 | ||
995 | if(tmdstat & XMIT_OWN) | |
996 | break; | |
997 | ||
998 | if(tmdstat & XMIT_ERR) | |
999 | { | |
1000 | #if 0 | |
1001 | if(tmdp->status2 & XMIT_TDRMASK && debuglevel > 3) | |
1002 | printk(KERN_ERR "%s: tdr-problems (e.g. no resistor)\n",dev->name); | |
1003 | #endif | |
1004 | /* checking some errors */ | |
1005 | if(tmdp->status2 & XMIT_RTRY) | |
c6bca821 | 1006 | dev->stats.tx_aborted_errors++; |
1da177e4 | 1007 | if(tmdp->status2 & XMIT_LCAR) |
c6bca821 | 1008 | dev->stats.tx_carrier_errors++; |
1da177e4 LT |
1009 | if(tmdp->status2 & (XMIT_BUFF | XMIT_UFLO )) { |
1010 | /* this stops the xmitter */ | |
c6bca821 | 1011 | dev->stats.tx_fifo_errors++; |
1da177e4 LT |
1012 | if(debuglevel > 0) |
1013 | printk(KERN_ERR "%s: Xmit FIFO/BUFF error\n",dev->name); | |
1014 | if(p->features & INIT_RING_BEFORE_START) { | |
1015 | tmdp->u.s.status = XMIT_OWN | XMIT_START | XMIT_END; /* test: resend this frame */ | |
1016 | ni65_stop_start(dev,p); | |
1017 | break; /* no more Xmit processing .. */ | |
1018 | } | |
1019 | else | |
1020 | ni65_stop_start(dev,p); | |
1021 | } | |
1022 | if(debuglevel > 2) | |
1023 | printk(KERN_ERR "%s: xmit-error: %04x %02x-%04x\n",dev->name,csr0,(int) tmdstat,(int) tmdp->status2); | |
1024 | if(!(csr0 & CSR0_BABL)) /* don't count errors twice */ | |
c6bca821 | 1025 | dev->stats.tx_errors++; |
1da177e4 LT |
1026 | tmdp->status2 = 0; |
1027 | } | |
1028 | else { | |
c6bca821 SH |
1029 | dev->stats.tx_bytes -= (short)(tmdp->blen); |
1030 | dev->stats.tx_packets++; | |
1da177e4 LT |
1031 | } |
1032 | ||
1033 | #ifdef XMT_VIA_SKB | |
1034 | if(p->tmd_skb[p->tmdlast]) { | |
1035 | dev_kfree_skb_irq(p->tmd_skb[p->tmdlast]); | |
1036 | p->tmd_skb[p->tmdlast] = NULL; | |
1037 | } | |
1038 | #endif | |
1039 | ||
1040 | p->tmdlast = (p->tmdlast + 1) & (TMDNUM-1); | |
1041 | if(p->tmdlast == p->tmdnum) | |
1042 | p->xmit_queued = 0; | |
1043 | } | |
1044 | netif_wake_queue(dev); | |
1045 | } | |
1046 | ||
1047 | /* | |
1048 | * We have received a packet | |
1049 | */ | |
1050 | static void ni65_recv_intr(struct net_device *dev,int csr0) | |
1051 | { | |
1052 | struct rmd *rmdp; | |
1053 | int rmdstat,len; | |
1054 | int cnt=0; | |
826dd0e1 | 1055 | struct priv *p = dev->ml_priv; |
1da177e4 LT |
1056 | |
1057 | rmdp = p->rmdhead + p->rmdnum; | |
1058 | while(!( (rmdstat = rmdp->u.s.status) & RCV_OWN)) | |
1059 | { | |
1060 | cnt++; | |
1061 | if( (rmdstat & (RCV_START | RCV_END | RCV_ERR)) != (RCV_START | RCV_END) ) /* error or oversized? */ | |
1062 | { | |
1063 | if(!(rmdstat & RCV_ERR)) { | |
1064 | if(rmdstat & RCV_START) | |
1065 | { | |
c6bca821 | 1066 | dev->stats.rx_length_errors++; |
1da177e4 LT |
1067 | printk(KERN_ERR "%s: recv, packet too long: %d\n",dev->name,rmdp->mlen & 0x0fff); |
1068 | } | |
1069 | } | |
1070 | else { | |
1071 | if(debuglevel > 2) | |
1072 | printk(KERN_ERR "%s: receive-error: %04x, lance-status: %04x/%04x\n", | |
1073 | dev->name,(int) rmdstat,csr0,(int) inw(PORT+L_DATAREG) ); | |
1074 | if(rmdstat & RCV_FRAM) | |
c6bca821 | 1075 | dev->stats.rx_frame_errors++; |
1da177e4 | 1076 | if(rmdstat & RCV_OFLO) |
c6bca821 | 1077 | dev->stats.rx_over_errors++; |
1da177e4 | 1078 | if(rmdstat & RCV_CRC) |
c6bca821 | 1079 | dev->stats.rx_crc_errors++; |
1da177e4 | 1080 | if(rmdstat & RCV_BUF_ERR) |
c6bca821 | 1081 | dev->stats.rx_fifo_errors++; |
1da177e4 LT |
1082 | } |
1083 | if(!(csr0 & CSR0_MISS)) /* don't count errors twice */ | |
c6bca821 | 1084 | dev->stats.rx_errors++; |
1da177e4 LT |
1085 | } |
1086 | else if( (len = (rmdp->mlen & 0x0fff) - 4) >= 60) | |
1087 | { | |
1088 | #ifdef RCV_VIA_SKB | |
1089 | struct sk_buff *skb = alloc_skb(R_BUF_SIZE+2+16,GFP_ATOMIC); | |
1090 | if (skb) | |
1091 | skb_reserve(skb,16); | |
1092 | #else | |
1093 | struct sk_buff *skb = dev_alloc_skb(len+2); | |
1094 | #endif | |
1095 | if(skb) | |
1096 | { | |
1097 | skb_reserve(skb,2); | |
1da177e4 LT |
1098 | #ifdef RCV_VIA_SKB |
1099 | if( (unsigned long) (skb->data + R_BUF_SIZE) > 0x1000000) { | |
1100 | skb_put(skb,len); | |
8c7b7faa | 1101 | skb_copy_to_linear_data(skb, (unsigned char *)(p->recv_skb[p->rmdnum]->data),len); |
1da177e4 LT |
1102 | } |
1103 | else { | |
1104 | struct sk_buff *skb1 = p->recv_skb[p->rmdnum]; | |
1105 | skb_put(skb,R_BUF_SIZE); | |
1106 | p->recv_skb[p->rmdnum] = skb; | |
1107 | rmdp->u.buffer = (u32) isa_virt_to_bus(skb->data); | |
1108 | skb = skb1; | |
1109 | skb_trim(skb,len); | |
1110 | } | |
1111 | #else | |
1112 | skb_put(skb,len); | |
8c7b7faa | 1113 | skb_copy_to_linear_data(skb, (unsigned char *) p->recvbounce[p->rmdnum],len); |
1da177e4 | 1114 | #endif |
c6bca821 SH |
1115 | dev->stats.rx_packets++; |
1116 | dev->stats.rx_bytes += len; | |
1da177e4 LT |
1117 | skb->protocol=eth_type_trans(skb,dev); |
1118 | netif_rx(skb); | |
1da177e4 LT |
1119 | } |
1120 | else | |
1121 | { | |
1122 | printk(KERN_ERR "%s: can't alloc new sk_buff\n",dev->name); | |
c6bca821 | 1123 | dev->stats.rx_dropped++; |
1da177e4 LT |
1124 | } |
1125 | } | |
1126 | else { | |
1127 | printk(KERN_INFO "%s: received runt packet\n",dev->name); | |
c6bca821 | 1128 | dev->stats.rx_errors++; |
1da177e4 LT |
1129 | } |
1130 | rmdp->blen = -(R_BUF_SIZE-8); | |
1131 | rmdp->mlen = 0; | |
1132 | rmdp->u.s.status = RCV_OWN; /* change owner */ | |
1133 | p->rmdnum = (p->rmdnum + 1) & (RMDNUM-1); | |
1134 | rmdp = p->rmdhead + p->rmdnum; | |
1135 | } | |
1136 | } | |
1137 | ||
1138 | /* | |
1139 | * kick xmitter .. | |
1140 | */ | |
6aa20a22 | 1141 | |
1da177e4 LT |
1142 | static void ni65_timeout(struct net_device *dev) |
1143 | { | |
1144 | int i; | |
826dd0e1 | 1145 | struct priv *p = dev->ml_priv; |
1da177e4 LT |
1146 | |
1147 | printk(KERN_ERR "%s: xmitter timed out, try to restart!\n",dev->name); | |
1148 | for(i=0;i<TMDNUM;i++) | |
1149 | printk("%02x ",p->tmdhead[i].u.s.status); | |
1150 | printk("\n"); | |
1151 | ni65_lance_reinit(dev); | |
1152 | dev->trans_start = jiffies; | |
1153 | netif_wake_queue(dev); | |
1154 | } | |
1155 | ||
1156 | /* | |
1157 | * Send a packet | |
1158 | */ | |
1159 | ||
1160 | static int ni65_send_packet(struct sk_buff *skb, struct net_device *dev) | |
1161 | { | |
826dd0e1 | 1162 | struct priv *p = dev->ml_priv; |
1da177e4 LT |
1163 | |
1164 | netif_stop_queue(dev); | |
6aa20a22 | 1165 | |
1da177e4 LT |
1166 | if (test_and_set_bit(0, (void*)&p->lock)) { |
1167 | printk(KERN_ERR "%s: Queue was locked.\n", dev->name); | |
5b548140 | 1168 | return NETDEV_TX_BUSY; |
1da177e4 LT |
1169 | } |
1170 | ||
1171 | { | |
1172 | short len = ETH_ZLEN < skb->len ? skb->len : ETH_ZLEN; | |
1173 | struct tmd *tmdp; | |
1174 | unsigned long flags; | |
1175 | ||
1176 | #ifdef XMT_VIA_SKB | |
1177 | if( (unsigned long) (skb->data + skb->len) > 0x1000000) { | |
1178 | #endif | |
1179 | ||
d626f62b ACM |
1180 | skb_copy_from_linear_data(skb, p->tmdbounce[p->tmdbouncenum], |
1181 | skb->len > T_BUF_SIZE ? T_BUF_SIZE : | |
1182 | skb->len); | |
1da177e4 LT |
1183 | if (len > skb->len) |
1184 | memset((char *)p->tmdbounce[p->tmdbouncenum]+skb->len, 0, len-skb->len); | |
1185 | dev_kfree_skb (skb); | |
1186 | ||
1187 | spin_lock_irqsave(&p->ring_lock, flags); | |
1188 | tmdp = p->tmdhead + p->tmdnum; | |
1189 | tmdp->u.buffer = (u32) isa_virt_to_bus(p->tmdbounce[p->tmdbouncenum]); | |
1190 | p->tmdbouncenum = (p->tmdbouncenum + 1) & (TMDNUM - 1); | |
1191 | ||
1192 | #ifdef XMT_VIA_SKB | |
1193 | } | |
1194 | else { | |
1195 | spin_lock_irqsave(&p->ring_lock, flags); | |
1196 | ||
1197 | tmdp = p->tmdhead + p->tmdnum; | |
1198 | tmdp->u.buffer = (u32) isa_virt_to_bus(skb->data); | |
1199 | p->tmd_skb[p->tmdnum] = skb; | |
1200 | } | |
1201 | #endif | |
1202 | tmdp->blen = -len; | |
1203 | ||
1204 | tmdp->u.s.status = XMIT_OWN | XMIT_START | XMIT_END; | |
1205 | writedatareg(CSR0_TDMD | CSR0_INEA); /* enable xmit & interrupt */ | |
1206 | ||
1207 | p->xmit_queued = 1; | |
1208 | p->tmdnum = (p->tmdnum + 1) & (TMDNUM-1); | |
1209 | ||
1210 | if(p->tmdnum != p->tmdlast) | |
1211 | netif_wake_queue(dev); | |
6aa20a22 | 1212 | |
1da177e4 LT |
1213 | p->lock = 0; |
1214 | dev->trans_start = jiffies; | |
6aa20a22 | 1215 | |
1da177e4 LT |
1216 | spin_unlock_irqrestore(&p->ring_lock, flags); |
1217 | } | |
1218 | ||
1219 | return 0; | |
1220 | } | |
1221 | ||
1da177e4 LT |
1222 | static void set_multicast_list(struct net_device *dev) |
1223 | { | |
1224 | if(!ni65_lance_reinit(dev)) | |
1225 | printk(KERN_ERR "%s: Can't switch card into MC mode!\n",dev->name); | |
1226 | netif_wake_queue(dev); | |
1227 | } | |
1228 | ||
1229 | #ifdef MODULE | |
1230 | static struct net_device *dev_ni65; | |
1231 | ||
1232 | module_param(irq, int, 0); | |
1233 | module_param(io, int, 0); | |
1234 | module_param(dma, int, 0); | |
1235 | MODULE_PARM_DESC(irq, "ni6510 IRQ number (ignored for some cards)"); | |
1236 | MODULE_PARM_DESC(io, "ni6510 I/O base address"); | |
1237 | MODULE_PARM_DESC(dma, "ni6510 ISA DMA channel (ignored for some cards)"); | |
1238 | ||
1e13b0d8 | 1239 | int __init init_module(void) |
1da177e4 LT |
1240 | { |
1241 | dev_ni65 = ni65_probe(-1); | |
1242 | return IS_ERR(dev_ni65) ? PTR_ERR(dev_ni65) : 0; | |
1243 | } | |
1244 | ||
afc8eb46 | 1245 | void __exit cleanup_module(void) |
1da177e4 LT |
1246 | { |
1247 | unregister_netdev(dev_ni65); | |
1248 | cleanup_card(dev_ni65); | |
1249 | free_netdev(dev_ni65); | |
1250 | } | |
1251 | #endif /* MODULE */ | |
1252 | ||
1253 | MODULE_LICENSE("GPL"); |