1 | // SPDX-License-Identifier: GPL-2.0-only |
2 | /* |
3 | * Sun3 i82586 Ethernet driver |
4 | * |
5 | * Cloned from ni52.c for the Sun3 by Sam Creasey (sammy@sammy.net) |
6 | * |
7 | * Original copyright follows: |
8 | * -------------------------- |
9 | * |
10 | * net-3-driver for the NI5210 card (i82586 Ethernet chip) |
11 | * |
12 | * This is an extension to the Linux operating system, and is covered by the |
13 | * same Gnu Public License that covers that work. |
14 | * |
15 | * Alphacode 0.82 (96/09/29) for Linux 2.0.0 (or later) |
16 | * Copyrights (c) 1994,1995,1996 by M.Hipp (hippm@informatik.uni-tuebingen.de) |
17 | * -------------------------- |
18 | * |
19 | * Consult ni52.c for further notes from the original driver. |
20 | * |
21 | * This incarnation currently supports the OBIO version of the i82586 chip |
22 | * used in certain sun3 models. It should be fairly doable to expand this |
23 | * to support VME if I should every acquire such a board. |
24 | * |
25 | */ |
26 | |
27 | static int debuglevel = 0; /* debug-printk 0: off 1: a few 2: more */ |
28 | static int automatic_resume = 0; /* experimental .. better should be zero */ |
29 | static int rfdadd = 0; /* rfdadd=1 may be better for 8K MEM cards */ |
30 | static int fifo=0x8; /* don't change */ |
31 | |
32 | #include <linux/kernel.h> |
33 | #include <linux/module.h> |
34 | #include <linux/string.h> |
35 | #include <linux/errno.h> |
36 | #include <linux/ioport.h> |
37 | #include <linux/interrupt.h> |
38 | #include <linux/delay.h> |
39 | #include <linux/init.h> |
40 | #include <linux/bitops.h> |
41 | #include <asm/io.h> |
42 | #include <asm/idprom.h> |
43 | #include <asm/machines.h> |
44 | #include <asm/sun3mmu.h> |
45 | #include <asm/dvma.h> |
46 | #include <asm/byteorder.h> |
47 | |
48 | #include <linux/netdevice.h> |
49 | #include <linux/etherdevice.h> |
50 | #include <linux/skbuff.h> |
51 | |
52 | #include "sun3_82586.h" |
53 | |
54 | #define DRV_NAME "sun3_82586" |
55 | |
56 | #define DEBUG /* debug on */ |
57 | #define SYSBUSVAL 0 /* 16 Bit */ |
58 | #define SUN3_82586_TOTAL_SIZE PAGE_SIZE |
59 | |
60 | #define sun3_attn586() {*(volatile unsigned char *)(dev->base_addr) |= IEOB_ATTEN; *(volatile unsigned char *)(dev->base_addr) &= ~IEOB_ATTEN;} |
61 | #define sun3_reset586() {*(volatile unsigned char *)(dev->base_addr) = 0; udelay(100); *(volatile unsigned char *)(dev->base_addr) = IEOB_NORSET;} |
62 | #define sun3_disint() {*(volatile unsigned char *)(dev->base_addr) &= ~IEOB_IENAB;} |
63 | #define sun3_enaint() {*(volatile unsigned char *)(dev->base_addr) |= IEOB_IENAB;} |
64 | #define sun3_active() {*(volatile unsigned char *)(dev->base_addr) |= (IEOB_IENAB|IEOB_ONAIR|IEOB_NORSET);} |
65 | |
66 | #define make32(ptr16) (p->memtop + (swab16((unsigned short) (ptr16))) ) |
67 | #define make24(ptr32) (char *)swab32(( ((unsigned long) (ptr32)) - p->base)) |
68 | #define make16(ptr32) (swab16((unsigned short) ((unsigned long)(ptr32) - (unsigned long) p->memtop ))) |
69 | |
70 | /******************* how to calculate the buffers ***************************** |
71 | |
72 | * IMPORTANT NOTE: if you configure only one NUM_XMIT_BUFFS, the driver works |
73 | * --------------- in a different (more stable?) mode. Only in this mode it's |
74 | * possible to configure the driver with 'NO_NOPCOMMANDS' |
75 | |
76 | sizeof(scp)=12; sizeof(scb)=16; sizeof(iscp)=8; |
77 | sizeof(scp)+sizeof(iscp)+sizeof(scb) = 36 = INIT |
78 | sizeof(rfd) = 24; sizeof(rbd) = 12; |
79 | sizeof(tbd) = 8; sizeof(transmit_cmd) = 16; |
80 | sizeof(nop_cmd) = 8; |
81 | |
82 | * if you don't know the driver, better do not change these values: */ |
83 | |
84 | #define RECV_BUFF_SIZE 1536 /* slightly oversized */ |
85 | #define XMIT_BUFF_SIZE 1536 /* slightly oversized */ |
86 | #define NUM_XMIT_BUFFS 1 /* config for 32K shmem */ |
87 | #define NUM_RECV_BUFFS_8 4 /* config for 32K shared mem */ |
88 | #define NUM_RECV_BUFFS_16 9 /* config for 32K shared mem */ |
89 | #define NUM_RECV_BUFFS_32 16 /* config for 32K shared mem */ |
90 | #define NO_NOPCOMMANDS /* only possible with NUM_XMIT_BUFFS=1 */ |
91 | |
92 | /**************************************************************************/ |
93 | |
94 | /* different DELAYs */ |
95 | #define DELAY(x) mdelay(32 * x); |
96 | #define DELAY_16(); { udelay(16); } |
97 | #define DELAY_18(); { udelay(4); } |
98 | |
99 | /* wait for command with timeout: */ |
100 | #define WAIT_4_SCB_CMD() \ |
101 | { int i; \ |
102 | for(i=0;i<16384;i++) { \ |
103 | if(!p->scb->cmd_cuc) break; \ |
104 | DELAY_18(); \ |
105 | if(i == 16383) { \ |
106 | printk("%s: scb_cmd timed out: %04x,%04x .. disabling i82586!!\n",dev->name,p->scb->cmd_cuc,p->scb->cus); \ |
107 | if(!p->reseted) { p->reseted = 1; sun3_reset586(); } } } } |
108 | |
109 | #define WAIT_4_SCB_CMD_RUC() { int i; \ |
110 | for(i=0;i<16384;i++) { \ |
111 | if(!p->scb->cmd_ruc) break; \ |
112 | DELAY_18(); \ |
113 | if(i == 16383) { \ |
114 | printk("%s: scb_cmd (ruc) timed out: %04x,%04x .. disabling i82586!!\n",dev->name,p->scb->cmd_ruc,p->scb->rus); \ |
115 | if(!p->reseted) { p->reseted = 1; sun3_reset586(); } } } } |
116 | |
117 | #define WAIT_4_STAT_COMPL(addr) { int i; \ |
118 | for(i=0;i<32767;i++) { \ |
119 | if(swab16((addr)->cmd_status) & STAT_COMPL) break; \ |
120 | DELAY_16(); DELAY_16(); } } |
121 | |
122 | static int sun3_82586_probe1(struct net_device *dev,int ioaddr); |
123 | static irqreturn_t sun3_82586_interrupt(int irq,void *dev_id); |
124 | static int sun3_82586_open(struct net_device *dev); |
125 | static int sun3_82586_close(struct net_device *dev); |
126 | static netdev_tx_t sun3_82586_send_packet(struct sk_buff *, |
127 | struct net_device *); |
128 | static struct net_device_stats *sun3_82586_get_stats(struct net_device *dev); |
129 | static void set_multicast_list(struct net_device *dev); |
130 | static void sun3_82586_timeout(struct net_device *dev, unsigned int txqueue); |
131 | #if 0 |
132 | static void sun3_82586_dump(struct net_device *,void *); |
133 | #endif |
134 | |
135 | /* helper-functions */ |
136 | static int init586(struct net_device *dev); |
137 | static int check586(struct net_device *dev,char *where,unsigned size); |
138 | static void alloc586(struct net_device *dev); |
139 | static void startrecv586(struct net_device *dev); |
140 | static void *alloc_rfa(struct net_device *dev,void *ptr); |
141 | static void sun3_82586_rcv_int(struct net_device *dev); |
142 | static void sun3_82586_xmt_int(struct net_device *dev); |
143 | static void sun3_82586_rnr_int(struct net_device *dev); |
144 | |
145 | struct priv |
146 | { |
147 | unsigned long base; |
148 | char *memtop; |
149 | long int lock; |
150 | int reseted; |
151 | volatile struct rfd_struct *rfd_last,*rfd_top,*rfd_first; |
152 | volatile struct scp_struct *scp; /* volatile is important */ |
153 | volatile struct iscp_struct *iscp; /* volatile is important */ |
154 | volatile struct scb_struct *scb; /* volatile is important */ |
155 | volatile struct tbd_struct *xmit_buffs[NUM_XMIT_BUFFS]; |
156 | volatile struct transmit_cmd_struct *xmit_cmds[NUM_XMIT_BUFFS]; |
157 | #if (NUM_XMIT_BUFFS == 1) |
158 | volatile struct nop_cmd_struct *nop_cmds[2]; |
159 | #else |
160 | volatile struct nop_cmd_struct *nop_cmds[NUM_XMIT_BUFFS]; |
161 | #endif |
162 | volatile int nop_point,num_recv_buffs; |
163 | volatile char *xmit_cbuffs[NUM_XMIT_BUFFS]; |
164 | volatile int xmit_count,xmit_last; |
165 | }; |
166 | |
167 | /********************************************** |
168 | * close device |
169 | */ |
170 | static int sun3_82586_close(struct net_device *dev) |
171 | { |
172 | free_irq(dev->irq, dev); |
173 | |
174 | sun3_reset586(); /* the hard way to stop the receiver */ |
175 | |
176 | netif_stop_queue(dev); |
177 | |
178 | return 0; |
179 | } |
180 | |
181 | /********************************************** |
182 | * open device |
183 | */ |
184 | static int sun3_82586_open(struct net_device *dev) |
185 | { |
186 | int ret; |
187 | |
188 | sun3_disint(); |
189 | alloc586(dev); |
190 | init586(dev); |
191 | startrecv586(dev); |
192 | sun3_enaint(); |
193 | |
194 | ret = request_irq(irq: dev->irq, handler: sun3_82586_interrupt,flags: 0,name: dev->name,dev); |
195 | if (ret) |
196 | { |
197 | sun3_reset586(); |
198 | return ret; |
199 | } |
200 | |
201 | netif_start_queue(dev); |
202 | |
203 | return 0; /* most done by init */ |
204 | } |
205 | |
206 | /********************************************** |
207 | * Check to see if there's an 82586 out there. |
208 | */ |
209 | static int check586(struct net_device *dev,char *where,unsigned size) |
210 | { |
211 | struct priv pb; |
212 | struct priv *p = &pb; |
213 | char *iscp_addr; |
214 | int i; |
215 | |
216 | p->base = (unsigned long) dvma_btov(0); |
217 | p->memtop = (char *)dvma_btov((unsigned long)where); |
218 | p->scp = (struct scp_struct *)(p->base + SCP_DEFAULT_ADDRESS); |
219 | memset((char *)p->scp,0, sizeof(struct scp_struct)); |
220 | for(i=0;i<sizeof(struct scp_struct);i++) /* memory was writeable? */ |
221 | if(((char *)p->scp)[i]) |
222 | return 0; |
223 | p->scp->sysbus = SYSBUSVAL; /* 1 = 8Bit-Bus, 0 = 16 Bit */ |
224 | if(p->scp->sysbus != SYSBUSVAL) |
225 | return 0; |
226 | |
227 | iscp_addr = (char *)dvma_btov((unsigned long)where); |
228 | |
229 | p->iscp = (struct iscp_struct *) iscp_addr; |
230 | memset((char *)p->iscp,0, sizeof(struct iscp_struct)); |
231 | |
232 | p->scp->iscp = make24(p->iscp); |
233 | p->iscp->busy = 1; |
234 | |
235 | sun3_reset586(); |
236 | sun3_attn586(); |
237 | DELAY(1); /* wait a while... */ |
238 | |
239 | if(p->iscp->busy) /* i82586 clears 'busy' after successful init */ |
240 | return 0; |
241 | |
242 | return 1; |
243 | } |
244 | |
245 | /****************************************************************** |
246 | * set iscp at the right place, called by sun3_82586_probe1 and open586. |
247 | */ |
248 | static void alloc586(struct net_device *dev) |
249 | { |
250 | struct priv *p = netdev_priv(dev); |
251 | |
252 | sun3_reset586(); |
253 | DELAY(1); |
254 | |
255 | p->scp = (struct scp_struct *) (p->base + SCP_DEFAULT_ADDRESS); |
256 | p->iscp = (struct iscp_struct *) dvma_btov(dev->mem_start); |
257 | p->scb = (struct scb_struct *) ((char *)p->iscp + sizeof(struct iscp_struct)); |
258 | |
259 | memset((char *) p->iscp,0,sizeof(struct iscp_struct)); |
260 | memset((char *) p->scp ,0,sizeof(struct scp_struct)); |
261 | |
262 | p->scp->iscp = make24(p->iscp); |
263 | p->scp->sysbus = SYSBUSVAL; |
264 | p->iscp->scb_offset = make16(p->scb); |
265 | p->iscp->scb_base = make24(dvma_btov(dev->mem_start)); |
266 | |
267 | p->iscp->busy = 1; |
268 | sun3_reset586(); |
269 | sun3_attn586(); |
270 | |
271 | DELAY(1); |
272 | |
273 | if(p->iscp->busy) |
274 | printk("%s: Init-Problems (alloc).\n" ,dev->name); |
275 | |
276 | p->reseted = 0; |
277 | |
278 | memset((char *)p->scb,0,sizeof(struct scb_struct)); |
279 | } |
280 | |
281 | static int __init sun3_82586_probe(void) |
282 | { |
283 | struct net_device *dev; |
284 | unsigned long ioaddr; |
285 | static int found = 0; |
286 | int err = -ENOMEM; |
287 | |
288 | /* check that this machine has an onboard 82586 */ |
289 | switch(idprom->id_machtype) { |
290 | case SM_SUN3|SM_3_160: |
291 | case SM_SUN3|SM_3_260: |
292 | /* these machines have 82586 */ |
293 | break; |
294 | |
295 | default: |
296 | return -ENODEV; |
297 | } |
298 | |
299 | if (found) |
300 | return -ENODEV; |
301 | |
302 | ioaddr = (unsigned long)ioremap(IE_OBIO, SUN3_82586_TOTAL_SIZE); |
303 | if (!ioaddr) |
304 | return -ENOMEM; |
305 | found = 1; |
306 | |
307 | dev = alloc_etherdev(sizeof(struct priv)); |
308 | if (!dev) |
309 | goto out; |
310 | dev->irq = IE_IRQ; |
311 | dev->base_addr = ioaddr; |
312 | err = sun3_82586_probe1(dev, ioaddr); |
313 | if (err) |
314 | goto out1; |
315 | err = register_netdev(dev); |
316 | if (err) |
317 | goto out2; |
318 | return 0; |
319 | |
320 | out2: |
321 | release_region(ioaddr, SUN3_82586_TOTAL_SIZE); |
322 | out1: |
323 | free_netdev(dev); |
324 | out: |
325 | iounmap(addr: (void __iomem *)ioaddr); |
326 | return err; |
327 | } |
328 | module_init(sun3_82586_probe); |
329 | |
330 | static const struct net_device_ops sun3_82586_netdev_ops = { |
331 | .ndo_open = sun3_82586_open, |
332 | .ndo_stop = sun3_82586_close, |
333 | .ndo_start_xmit = sun3_82586_send_packet, |
334 | .ndo_set_rx_mode = set_multicast_list, |
335 | .ndo_tx_timeout = sun3_82586_timeout, |
336 | .ndo_get_stats = sun3_82586_get_stats, |
337 | .ndo_validate_addr = eth_validate_addr, |
338 | .ndo_set_mac_address = eth_mac_addr, |
339 | }; |
340 | |
341 | static int __init sun3_82586_probe1(struct net_device *dev,int ioaddr) |
342 | { |
343 | int size, retval; |
344 | |
345 | if (!request_region(ioaddr, SUN3_82586_TOTAL_SIZE, DRV_NAME)) |
346 | return -EBUSY; |
347 | |
348 | /* copy in the ethernet address from the prom */ |
349 | eth_hw_addr_set(dev, addr: idprom->id_ethaddr); |
350 | |
351 | printk("%s: SUN3 Intel 82586 found at %lx, " ,dev->name,dev->base_addr); |
352 | |
353 | /* |
354 | * check (or search) IO-Memory, 32K |
355 | */ |
356 | size = 0x8000; |
357 | |
358 | dev->mem_start = (unsigned long)dvma_malloc_align(0x8000, 0x1000); |
359 | dev->mem_end = dev->mem_start + size; |
360 | |
361 | if(size != 0x2000 && size != 0x4000 && size != 0x8000) { |
362 | printk("\n%s: Illegal memory size %d. Allowed is 0x2000 or 0x4000 or 0x8000 bytes.\n" ,dev->name,size); |
363 | retval = -ENODEV; |
364 | goto out; |
365 | } |
366 | if(!check586(dev,where: (char *) dev->mem_start,size)) { |
367 | printk("?memcheck, Can't find memory at 0x%lx with size %d!\n" ,dev->mem_start,size); |
368 | retval = -ENODEV; |
369 | goto out; |
370 | } |
371 | |
372 | ((struct priv *)netdev_priv(dev))->memtop = |
373 | (char *)dvma_btov(dev->mem_start); |
374 | ((struct priv *)netdev_priv(dev))->base = (unsigned long) dvma_btov(0); |
375 | alloc586(dev); |
376 | |
377 | /* set number of receive-buffs according to memsize */ |
378 | if(size == 0x2000) |
379 | ((struct priv *)netdev_priv(dev))->num_recv_buffs = |
380 | NUM_RECV_BUFFS_8; |
381 | else if(size == 0x4000) |
382 | ((struct priv *)netdev_priv(dev))->num_recv_buffs = |
383 | NUM_RECV_BUFFS_16; |
384 | else |
385 | ((struct priv *)netdev_priv(dev))->num_recv_buffs = |
386 | NUM_RECV_BUFFS_32; |
387 | |
388 | printk("Memaddr: 0x%lx, Memsize: %d, IRQ %d\n" ,dev->mem_start,size, dev->irq); |
389 | |
390 | dev->netdev_ops = &sun3_82586_netdev_ops; |
391 | dev->watchdog_timeo = HZ/20; |
392 | |
393 | dev->if_port = 0; |
394 | return 0; |
395 | out: |
396 | release_region(ioaddr, SUN3_82586_TOTAL_SIZE); |
397 | return retval; |
398 | } |
399 | |
400 | |
401 | static int init586(struct net_device *dev) |
402 | { |
403 | void *ptr; |
404 | int i,result=0; |
405 | struct priv *p = netdev_priv(dev); |
406 | volatile struct configure_cmd_struct *cfg_cmd; |
407 | volatile struct iasetup_cmd_struct *ias_cmd; |
408 | volatile struct tdr_cmd_struct *tdr_cmd; |
409 | volatile struct mcsetup_cmd_struct *mc_cmd; |
410 | struct netdev_hw_addr *ha; |
411 | int num_addrs=netdev_mc_count(dev); |
412 | |
413 | ptr = (void *) ((char *)p->scb + sizeof(struct scb_struct)); |
414 | |
415 | cfg_cmd = (struct configure_cmd_struct *)ptr; /* configure-command */ |
416 | cfg_cmd->cmd_status = 0; |
417 | cfg_cmd->cmd_cmd = swab16(CMD_CONFIGURE | CMD_LAST); |
418 | cfg_cmd->cmd_link = 0xffff; |
419 | |
420 | cfg_cmd->byte_cnt = 0x0a; /* number of cfg bytes */ |
421 | cfg_cmd->fifo = fifo; /* fifo-limit (8=tx:32/rx:64) */ |
422 | cfg_cmd->sav_bf = 0x40; /* hold or discard bad recv frames (bit 7) */ |
423 | cfg_cmd->adr_len = 0x2e; /* addr_len |!src_insert |pre-len |loopback */ |
424 | cfg_cmd->priority = 0x00; |
425 | cfg_cmd->ifs = 0x60; |
426 | cfg_cmd->time_low = 0x00; |
427 | cfg_cmd->time_high = 0xf2; |
428 | cfg_cmd->promisc = 0; |
429 | if(dev->flags & IFF_ALLMULTI) { |
430 | int len = ((char *) p->iscp - (char *) ptr - 8) / 6; |
431 | if(num_addrs > len) { |
432 | printk("%s: switching to promisc. mode\n" ,dev->name); |
433 | cfg_cmd->promisc = 1; |
434 | } |
435 | } |
436 | if(dev->flags&IFF_PROMISC) |
437 | cfg_cmd->promisc = 1; |
438 | cfg_cmd->carr_coll = 0x00; |
439 | |
440 | p->scb->cbl_offset = make16(cfg_cmd); |
441 | p->scb->cmd_ruc = 0; |
442 | |
443 | p->scb->cmd_cuc = CUC_START; /* cmd.-unit start */ |
444 | sun3_attn586(); |
445 | |
446 | WAIT_4_STAT_COMPL(cfg_cmd); |
447 | |
448 | if((swab16(cfg_cmd->cmd_status) & (STAT_OK|STAT_COMPL)) != (STAT_COMPL|STAT_OK)) |
449 | { |
450 | printk("%s: configure command failed: %x\n" ,dev->name,swab16(cfg_cmd->cmd_status)); |
451 | return 1; |
452 | } |
453 | |
454 | /* |
455 | * individual address setup |
456 | */ |
457 | |
458 | ias_cmd = (struct iasetup_cmd_struct *)ptr; |
459 | |
460 | ias_cmd->cmd_status = 0; |
461 | ias_cmd->cmd_cmd = swab16(CMD_IASETUP | CMD_LAST); |
462 | ias_cmd->cmd_link = 0xffff; |
463 | |
464 | memcpy((char *)&ias_cmd->iaddr,(const char *) dev->dev_addr,ETH_ALEN); |
465 | |
466 | p->scb->cbl_offset = make16(ias_cmd); |
467 | |
468 | p->scb->cmd_cuc = CUC_START; /* cmd.-unit start */ |
469 | sun3_attn586(); |
470 | |
471 | WAIT_4_STAT_COMPL(ias_cmd); |
472 | |
473 | if((swab16(ias_cmd->cmd_status) & (STAT_OK|STAT_COMPL)) != (STAT_OK|STAT_COMPL)) { |
474 | printk("%s (82586): individual address setup command failed: %04x\n" ,dev->name,swab16(ias_cmd->cmd_status)); |
475 | return 1; |
476 | } |
477 | |
478 | /* |
479 | * TDR, wire check .. e.g. no resistor e.t.c |
480 | */ |
481 | |
482 | tdr_cmd = (struct tdr_cmd_struct *)ptr; |
483 | |
484 | tdr_cmd->cmd_status = 0; |
485 | tdr_cmd->cmd_cmd = swab16(CMD_TDR | CMD_LAST); |
486 | tdr_cmd->cmd_link = 0xffff; |
487 | tdr_cmd->status = 0; |
488 | |
489 | p->scb->cbl_offset = make16(tdr_cmd); |
490 | p->scb->cmd_cuc = CUC_START; /* cmd.-unit start */ |
491 | sun3_attn586(); |
492 | |
493 | WAIT_4_STAT_COMPL(tdr_cmd); |
494 | |
495 | if(!(swab16(tdr_cmd->cmd_status) & STAT_COMPL)) |
496 | { |
497 | printk("%s: Problems while running the TDR.\n" ,dev->name); |
498 | } |
499 | else |
500 | { |
501 | DELAY_16(); /* wait for result */ |
502 | result = swab16(tdr_cmd->status); |
503 | |
504 | p->scb->cmd_cuc = p->scb->cus & STAT_MASK; |
505 | sun3_attn586(); /* ack the interrupts */ |
506 | |
507 | if(result & TDR_LNK_OK) |
508 | ; |
509 | else if(result & TDR_XCVR_PRB) |
510 | printk("%s: TDR: Transceiver problem. Check the cable(s)!\n" ,dev->name); |
511 | else if(result & TDR_ET_OPN) |
512 | printk("%s: TDR: No correct termination %d clocks away.\n" ,dev->name,result & TDR_TIMEMASK); |
513 | else if(result & TDR_ET_SRT) |
514 | { |
515 | if (result & TDR_TIMEMASK) /* time == 0 -> strange :-) */ |
516 | printk("%s: TDR: Detected a short circuit %d clocks away.\n" ,dev->name,result & TDR_TIMEMASK); |
517 | } |
518 | else |
519 | printk("%s: TDR: Unknown status %04x\n" ,dev->name,result); |
520 | } |
521 | |
522 | /* |
523 | * Multicast setup |
524 | */ |
525 | if(num_addrs && !(dev->flags & IFF_PROMISC) ) |
526 | { |
527 | mc_cmd = (struct mcsetup_cmd_struct *) ptr; |
528 | mc_cmd->cmd_status = 0; |
529 | mc_cmd->cmd_cmd = swab16(CMD_MCSETUP | CMD_LAST); |
530 | mc_cmd->cmd_link = 0xffff; |
531 | mc_cmd->mc_cnt = swab16(num_addrs * 6); |
532 | |
533 | i = 0; |
534 | netdev_for_each_mc_addr(ha, dev) |
535 | memcpy((char *) mc_cmd->mc_list[i++], |
536 | ha->addr, ETH_ALEN); |
537 | |
538 | p->scb->cbl_offset = make16(mc_cmd); |
539 | p->scb->cmd_cuc = CUC_START; |
540 | sun3_attn586(); |
541 | |
542 | WAIT_4_STAT_COMPL(mc_cmd); |
543 | |
544 | if( (swab16(mc_cmd->cmd_status) & (STAT_COMPL|STAT_OK)) != (STAT_COMPL|STAT_OK) ) |
545 | printk("%s: Can't apply multicast-address-list.\n" ,dev->name); |
546 | } |
547 | |
548 | /* |
549 | * alloc nop/xmit-cmds |
550 | */ |
551 | #if (NUM_XMIT_BUFFS == 1) |
552 | for(i=0;i<2;i++) |
553 | { |
554 | p->nop_cmds[i] = (struct nop_cmd_struct *)ptr; |
555 | p->nop_cmds[i]->cmd_cmd = swab16(CMD_NOP); |
556 | p->nop_cmds[i]->cmd_status = 0; |
557 | p->nop_cmds[i]->cmd_link = make16((p->nop_cmds[i])); |
558 | ptr = (char *) ptr + sizeof(struct nop_cmd_struct); |
559 | } |
560 | #else |
561 | for(i=0;i<NUM_XMIT_BUFFS;i++) |
562 | { |
563 | p->nop_cmds[i] = (struct nop_cmd_struct *)ptr; |
564 | p->nop_cmds[i]->cmd_cmd = swab16(CMD_NOP); |
565 | p->nop_cmds[i]->cmd_status = 0; |
566 | p->nop_cmds[i]->cmd_link = make16((p->nop_cmds[i])); |
567 | ptr = (char *) ptr + sizeof(struct nop_cmd_struct); |
568 | } |
569 | #endif |
570 | |
571 | ptr = alloc_rfa(dev,ptr); /* init receive-frame-area */ |
572 | |
573 | /* |
574 | * alloc xmit-buffs / init xmit_cmds |
575 | */ |
576 | for(i=0;i<NUM_XMIT_BUFFS;i++) |
577 | { |
578 | p->xmit_cmds[i] = (struct transmit_cmd_struct *)ptr; /*transmit cmd/buff 0*/ |
579 | ptr = (char *) ptr + sizeof(struct transmit_cmd_struct); |
580 | p->xmit_cbuffs[i] = (char *)ptr; /* char-buffs */ |
581 | ptr = (char *) ptr + XMIT_BUFF_SIZE; |
582 | p->xmit_buffs[i] = (struct tbd_struct *)ptr; /* TBD */ |
583 | ptr = (char *) ptr + sizeof(struct tbd_struct); |
584 | if(ptr > (void *)dev->mem_end) |
585 | { |
586 | printk("%s: not enough shared-mem for your configuration!\n" ,dev->name); |
587 | return 1; |
588 | } |
589 | memset((char *)(p->xmit_cmds[i]) ,0, sizeof(struct transmit_cmd_struct)); |
590 | memset((char *)(p->xmit_buffs[i]),0, sizeof(struct tbd_struct)); |
591 | p->xmit_cmds[i]->cmd_link = make16(p->nop_cmds[(i+1)%NUM_XMIT_BUFFS]); |
592 | p->xmit_cmds[i]->cmd_status = swab16(STAT_COMPL); |
593 | p->xmit_cmds[i]->cmd_cmd = swab16(CMD_XMIT | CMD_INT); |
594 | p->xmit_cmds[i]->tbd_offset = make16((p->xmit_buffs[i])); |
595 | p->xmit_buffs[i]->next = 0xffff; |
596 | p->xmit_buffs[i]->buffer = make24((p->xmit_cbuffs[i])); |
597 | } |
598 | |
599 | p->xmit_count = 0; |
600 | p->xmit_last = 0; |
601 | #ifndef NO_NOPCOMMANDS |
602 | p->nop_point = 0; |
603 | #endif |
604 | |
605 | /* |
606 | * 'start transmitter' |
607 | */ |
608 | #ifndef NO_NOPCOMMANDS |
609 | p->scb->cbl_offset = make16(p->nop_cmds[0]); |
610 | p->scb->cmd_cuc = CUC_START; |
611 | sun3_attn586(); |
612 | WAIT_4_SCB_CMD(); |
613 | #else |
614 | p->xmit_cmds[0]->cmd_link = make16(p->xmit_cmds[0]); |
615 | p->xmit_cmds[0]->cmd_cmd = swab16(CMD_XMIT | CMD_SUSPEND | CMD_INT); |
616 | #endif |
617 | |
618 | /* |
619 | * ack. interrupts |
620 | */ |
621 | p->scb->cmd_cuc = p->scb->cus & STAT_MASK; |
622 | sun3_attn586(); |
623 | DELAY_16(); |
624 | |
625 | sun3_enaint(); |
626 | sun3_active(); |
627 | |
628 | return 0; |
629 | } |
630 | |
631 | /****************************************************** |
632 | * This is a helper routine for sun3_82586_rnr_int() and init586(). |
633 | * It sets up the Receive Frame Area (RFA). |
634 | */ |
635 | |
636 | static void *alloc_rfa(struct net_device *dev,void *ptr) |
637 | { |
638 | volatile struct rfd_struct *rfd = (struct rfd_struct *)ptr; |
639 | volatile struct rbd_struct *rbd; |
640 | int i; |
641 | struct priv *p = netdev_priv(dev); |
642 | |
643 | memset((char *) rfd,0,sizeof(struct rfd_struct)*(p->num_recv_buffs+rfdadd)); |
644 | p->rfd_first = rfd; |
645 | |
646 | for(i = 0; i < (p->num_recv_buffs+rfdadd); i++) { |
647 | rfd[i].next = make16(rfd + (i+1) % (p->num_recv_buffs+rfdadd) ); |
648 | rfd[i].rbd_offset = 0xffff; |
649 | } |
650 | rfd[p->num_recv_buffs-1+rfdadd].last = RFD_SUSP; /* RU suspend */ |
651 | |
652 | ptr = (void *) (rfd + (p->num_recv_buffs + rfdadd) ); |
653 | |
654 | rbd = (struct rbd_struct *) ptr; |
655 | ptr = (void *) (rbd + p->num_recv_buffs); |
656 | |
657 | /* clr descriptors */ |
658 | memset((char *) rbd,0,sizeof(struct rbd_struct)*(p->num_recv_buffs)); |
659 | |
660 | for(i=0;i<p->num_recv_buffs;i++) |
661 | { |
662 | rbd[i].next = make16((rbd + (i+1) % p->num_recv_buffs)); |
663 | rbd[i].size = swab16(RECV_BUFF_SIZE); |
664 | rbd[i].buffer = make24(ptr); |
665 | ptr = (char *) ptr + RECV_BUFF_SIZE; |
666 | } |
667 | |
668 | p->rfd_top = p->rfd_first; |
669 | p->rfd_last = p->rfd_first + (p->num_recv_buffs - 1 + rfdadd); |
670 | |
671 | p->scb->rfa_offset = make16(p->rfd_first); |
672 | p->rfd_first->rbd_offset = make16(rbd); |
673 | |
674 | return ptr; |
675 | } |
676 | |
677 | |
678 | /************************************************** |
679 | * Interrupt Handler ... |
680 | */ |
681 | |
682 | static irqreturn_t sun3_82586_interrupt(int irq,void *dev_id) |
683 | { |
684 | struct net_device *dev = dev_id; |
685 | unsigned short stat; |
686 | int cnt=0; |
687 | struct priv *p; |
688 | |
689 | if (!dev) { |
690 | printk ("sun3_82586-interrupt: irq %d for unknown device.\n" ,irq); |
691 | return IRQ_NONE; |
692 | } |
693 | p = netdev_priv(dev); |
694 | |
695 | if(debuglevel > 1) |
696 | printk("I" ); |
697 | |
698 | WAIT_4_SCB_CMD(); /* wait for last command */ |
699 | |
700 | while((stat=p->scb->cus & STAT_MASK)) |
701 | { |
702 | p->scb->cmd_cuc = stat; |
703 | sun3_attn586(); |
704 | |
705 | if(stat & STAT_FR) /* received a frame */ |
706 | sun3_82586_rcv_int(dev); |
707 | |
708 | if(stat & STAT_RNR) /* RU went 'not ready' */ |
709 | { |
710 | printk("(R)" ); |
711 | if(p->scb->rus & RU_SUSPEND) /* special case: RU_SUSPEND */ |
712 | { |
713 | WAIT_4_SCB_CMD(); |
714 | p->scb->cmd_ruc = RUC_RESUME; |
715 | sun3_attn586(); |
716 | WAIT_4_SCB_CMD_RUC(); |
717 | } |
718 | else |
719 | { |
720 | printk("%s: Receiver-Unit went 'NOT READY': %04x/%02x.\n" ,dev->name,(int) stat,(int) p->scb->rus); |
721 | sun3_82586_rnr_int(dev); |
722 | } |
723 | } |
724 | |
725 | if(stat & STAT_CX) /* command with I-bit set complete */ |
726 | sun3_82586_xmt_int(dev); |
727 | |
728 | #ifndef NO_NOPCOMMANDS |
729 | if(stat & STAT_CNA) /* CU went 'not ready' */ |
730 | { |
731 | if(netif_running(dev)) |
732 | printk("%s: oops! CU has left active state. stat: %04x/%02x.\n" ,dev->name,(int) stat,(int) p->scb->cus); |
733 | } |
734 | #endif |
735 | |
736 | if(debuglevel > 1) |
737 | printk("%d" ,cnt++); |
738 | |
739 | WAIT_4_SCB_CMD(); /* wait for ack. (sun3_82586_xmt_int can be faster than ack!!) */ |
740 | if(p->scb->cmd_cuc) /* timed out? */ |
741 | { |
742 | printk("%s: Acknowledge timed out.\n" ,dev->name); |
743 | sun3_disint(); |
744 | break; |
745 | } |
746 | } |
747 | |
748 | if(debuglevel > 1) |
749 | printk("i" ); |
750 | return IRQ_HANDLED; |
751 | } |
752 | |
753 | /******************************************************* |
754 | * receive-interrupt |
755 | */ |
756 | |
757 | static void sun3_82586_rcv_int(struct net_device *dev) |
758 | { |
759 | int status,cnt=0; |
760 | unsigned short totlen; |
761 | struct sk_buff *skb; |
762 | struct rbd_struct *rbd; |
763 | struct priv *p = netdev_priv(dev); |
764 | |
765 | if(debuglevel > 0) |
766 | printk("R" ); |
767 | |
768 | for(;(status = p->rfd_top->stat_high) & RFD_COMPL;) |
769 | { |
770 | rbd = (struct rbd_struct *) make32(p->rfd_top->rbd_offset); |
771 | |
772 | if(status & RFD_OK) /* frame received without error? */ |
773 | { |
774 | if( (totlen = swab16(rbd->status)) & RBD_LAST) /* the first and the last buffer? */ |
775 | { |
776 | totlen &= RBD_MASK; /* length of this frame */ |
777 | rbd->status = 0; |
778 | skb = netdev_alloc_skb(dev, length: totlen + 2); |
779 | if(skb != NULL) |
780 | { |
781 | skb_reserve(skb,len: 2); |
782 | skb_put(skb,len: totlen); |
783 | skb_copy_to_linear_data(skb,from: (char *) p->base+swab32((unsigned long) rbd->buffer),len: totlen); |
784 | skb->protocol=eth_type_trans(skb,dev); |
785 | netif_rx(skb); |
786 | dev->stats.rx_packets++; |
787 | } |
788 | else |
789 | dev->stats.rx_dropped++; |
790 | } |
791 | else |
792 | { |
793 | int rstat; |
794 | /* free all RBD's until RBD_LAST is set */ |
795 | totlen = 0; |
796 | while(!((rstat=swab16(rbd->status)) & RBD_LAST)) |
797 | { |
798 | totlen += rstat & RBD_MASK; |
799 | if(!rstat) |
800 | { |
801 | printk("%s: Whoops .. no end mark in RBD list\n" ,dev->name); |
802 | break; |
803 | } |
804 | rbd->status = 0; |
805 | rbd = (struct rbd_struct *) make32(rbd->next); |
806 | } |
807 | totlen += rstat & RBD_MASK; |
808 | rbd->status = 0; |
809 | printk("%s: received oversized frame! length: %d\n" ,dev->name,totlen); |
810 | dev->stats.rx_dropped++; |
811 | } |
812 | } |
813 | else /* frame !(ok), only with 'save-bad-frames' */ |
814 | { |
815 | printk("%s: oops! rfd-error-status: %04x\n" ,dev->name,status); |
816 | dev->stats.rx_errors++; |
817 | } |
818 | p->rfd_top->stat_high = 0; |
819 | p->rfd_top->last = RFD_SUSP; /* maybe exchange by RFD_LAST */ |
820 | p->rfd_top->rbd_offset = 0xffff; |
821 | p->rfd_last->last = 0; /* delete RFD_SUSP */ |
822 | p->rfd_last = p->rfd_top; |
823 | p->rfd_top = (struct rfd_struct *) make32(p->rfd_top->next); /* step to next RFD */ |
824 | p->scb->rfa_offset = make16(p->rfd_top); |
825 | |
826 | if(debuglevel > 0) |
827 | printk("%d" ,cnt++); |
828 | } |
829 | |
830 | if(automatic_resume) |
831 | { |
832 | WAIT_4_SCB_CMD(); |
833 | p->scb->cmd_ruc = RUC_RESUME; |
834 | sun3_attn586(); |
835 | WAIT_4_SCB_CMD_RUC(); |
836 | } |
837 | |
838 | #ifdef WAIT_4_BUSY |
839 | { |
840 | int i; |
841 | for(i=0;i<1024;i++) |
842 | { |
843 | if(p->rfd_top->status) |
844 | break; |
845 | DELAY_16(); |
846 | if(i == 1023) |
847 | printk("%s: RU hasn't fetched next RFD (not busy/complete)\n" ,dev->name); |
848 | } |
849 | } |
850 | #endif |
851 | |
852 | #if 0 |
853 | if(!at_least_one) |
854 | { |
855 | int i; |
856 | volatile struct rfd_struct *rfds=p->rfd_top; |
857 | volatile struct rbd_struct *rbds; |
858 | printk("%s: received a FC intr. without having a frame: %04x %d\n" ,dev->name,status,old_at_least); |
859 | for(i=0;i< (p->num_recv_buffs+4);i++) |
860 | { |
861 | rbds = (struct rbd_struct *) make32(rfds->rbd_offset); |
862 | printk("%04x:%04x " ,rfds->status,rbds->status); |
863 | rfds = (struct rfd_struct *) make32(rfds->next); |
864 | } |
865 | printk("\nerrs: %04x %04x stat: %04x\n" ,(int)p->scb->rsc_errs,(int)p->scb->ovrn_errs,(int)p->scb->status); |
866 | printk("\nerrs: %04x %04x rus: %02x, cus: %02x\n" ,(int)p->scb->rsc_errs,(int)p->scb->ovrn_errs,(int)p->scb->rus,(int)p->scb->cus); |
867 | } |
868 | old_at_least = at_least_one; |
869 | #endif |
870 | |
871 | if(debuglevel > 0) |
872 | printk("r" ); |
873 | } |
874 | |
875 | /********************************************************** |
876 | * handle 'Receiver went not ready'. |
877 | */ |
878 | |
879 | static void sun3_82586_rnr_int(struct net_device *dev) |
880 | { |
881 | struct priv *p = netdev_priv(dev); |
882 | |
883 | dev->stats.rx_errors++; |
884 | |
885 | WAIT_4_SCB_CMD(); /* wait for the last cmd, WAIT_4_FULLSTAT?? */ |
886 | p->scb->cmd_ruc = RUC_ABORT; /* usually the RU is in the 'no resource'-state .. abort it now. */ |
887 | sun3_attn586(); |
888 | WAIT_4_SCB_CMD_RUC(); /* wait for accept cmd. */ |
889 | |
890 | alloc_rfa(dev,ptr: (char *)p->rfd_first); |
891 | /* maybe add a check here, before restarting the RU */ |
892 | startrecv586(dev); /* restart RU */ |
893 | |
894 | printk("%s: Receive-Unit restarted. Status: %04x\n" ,dev->name,p->scb->rus); |
895 | |
896 | } |
897 | |
898 | /********************************************************** |
899 | * handle xmit - interrupt |
900 | */ |
901 | |
902 | static void sun3_82586_xmt_int(struct net_device *dev) |
903 | { |
904 | int status; |
905 | struct priv *p = netdev_priv(dev); |
906 | |
907 | if(debuglevel > 0) |
908 | printk("X" ); |
909 | |
910 | status = swab16(p->xmit_cmds[p->xmit_last]->cmd_status); |
911 | if(!(status & STAT_COMPL)) |
912 | printk("%s: strange .. xmit-int without a 'COMPLETE'\n" ,dev->name); |
913 | |
914 | if(status & STAT_OK) |
915 | { |
916 | dev->stats.tx_packets++; |
917 | dev->stats.collisions += (status & TCMD_MAXCOLLMASK); |
918 | } |
919 | else |
920 | { |
921 | dev->stats.tx_errors++; |
922 | if(status & TCMD_LATECOLL) { |
923 | printk("%s: late collision detected.\n" ,dev->name); |
924 | dev->stats.collisions++; |
925 | } |
926 | else if(status & TCMD_NOCARRIER) { |
927 | dev->stats.tx_carrier_errors++; |
928 | printk("%s: no carrier detected.\n" ,dev->name); |
929 | } |
930 | else if(status & TCMD_LOSTCTS) |
931 | printk("%s: loss of CTS detected.\n" ,dev->name); |
932 | else if(status & TCMD_UNDERRUN) { |
933 | dev->stats.tx_fifo_errors++; |
934 | printk("%s: DMA underrun detected.\n" ,dev->name); |
935 | } |
936 | else if(status & TCMD_MAXCOLL) { |
937 | printk("%s: Max. collisions exceeded.\n" ,dev->name); |
938 | dev->stats.collisions += 16; |
939 | } |
940 | } |
941 | |
942 | #if (NUM_XMIT_BUFFS > 1) |
943 | if( (++p->xmit_last) == NUM_XMIT_BUFFS) |
944 | p->xmit_last = 0; |
945 | #endif |
946 | netif_wake_queue(dev); |
947 | } |
948 | |
949 | /*********************************************************** |
950 | * (re)start the receiver |
951 | */ |
952 | |
953 | static void startrecv586(struct net_device *dev) |
954 | { |
955 | struct priv *p = netdev_priv(dev); |
956 | |
957 | WAIT_4_SCB_CMD(); |
958 | WAIT_4_SCB_CMD_RUC(); |
959 | p->scb->rfa_offset = make16(p->rfd_first); |
960 | p->scb->cmd_ruc = RUC_START; |
961 | sun3_attn586(); /* start cmd. */ |
962 | WAIT_4_SCB_CMD_RUC(); /* wait for accept cmd. (no timeout!!) */ |
963 | } |
964 | |
965 | static void sun3_82586_timeout(struct net_device *dev, unsigned int txqueue) |
966 | { |
967 | struct priv *p = netdev_priv(dev); |
968 | #ifndef NO_NOPCOMMANDS |
969 | if(p->scb->cus & CU_ACTIVE) /* COMMAND-UNIT active? */ |
970 | { |
971 | netif_wake_queue(dev); |
972 | #ifdef DEBUG |
973 | printk("%s: strange ... timeout with CU active?!?\n" ,dev->name); |
974 | printk("%s: X0: %04x N0: %04x N1: %04x %d\n" ,dev->name,(int)swab16(p->xmit_cmds[0]->cmd_status),(int)swab16(p->nop_cmds[0]->cmd_status),(int)swab16(p->nop_cmds[1]->cmd_status),(int)p->nop_point); |
975 | #endif |
976 | p->scb->cmd_cuc = CUC_ABORT; |
977 | sun3_attn586(); |
978 | WAIT_4_SCB_CMD(); |
979 | p->scb->cbl_offset = make16(p->nop_cmds[p->nop_point]); |
980 | p->scb->cmd_cuc = CUC_START; |
981 | sun3_attn586(); |
982 | WAIT_4_SCB_CMD(); |
983 | netif_trans_update(dev); /* prevent tx timeout */ |
984 | return 0; |
985 | } |
986 | #endif |
987 | { |
988 | #ifdef DEBUG |
989 | printk("%s: xmitter timed out, try to restart! stat: %02x\n" ,dev->name,p->scb->cus); |
990 | printk("%s: command-stats: %04x %04x\n" ,dev->name,swab16(p->xmit_cmds[0]->cmd_status),swab16(p->xmit_cmds[1]->cmd_status)); |
991 | printk("%s: check, whether you set the right interrupt number!\n" ,dev->name); |
992 | #endif |
993 | sun3_82586_close(dev); |
994 | sun3_82586_open(dev); |
995 | } |
996 | netif_trans_update(dev); /* prevent tx timeout */ |
997 | } |
998 | |
999 | /****************************************************** |
1000 | * send frame |
1001 | */ |
1002 | |
1003 | static netdev_tx_t |
1004 | sun3_82586_send_packet(struct sk_buff *skb, struct net_device *dev) |
1005 | { |
1006 | int len,i; |
1007 | #ifndef NO_NOPCOMMANDS |
1008 | int next_nop; |
1009 | #endif |
1010 | struct priv *p = netdev_priv(dev); |
1011 | |
1012 | if(skb->len > XMIT_BUFF_SIZE) |
1013 | { |
1014 | printk("%s: Sorry, max. framelength is %d bytes. The length of your frame is %d bytes.\n" ,dev->name,XMIT_BUFF_SIZE,skb->len); |
1015 | return NETDEV_TX_OK; |
1016 | } |
1017 | |
1018 | netif_stop_queue(dev); |
1019 | |
1020 | #if(NUM_XMIT_BUFFS > 1) |
1021 | if(test_and_set_bit(0,(void *) &p->lock)) { |
1022 | printk("%s: Queue was locked\n" ,dev->name); |
1023 | return NETDEV_TX_BUSY; |
1024 | } |
1025 | else |
1026 | #endif |
1027 | { |
1028 | len = skb->len; |
1029 | if (len < ETH_ZLEN) { |
1030 | memset((void *)p->xmit_cbuffs[p->xmit_count], 0, |
1031 | ETH_ZLEN); |
1032 | len = ETH_ZLEN; |
1033 | } |
1034 | skb_copy_from_linear_data(skb, to: (void *)p->xmit_cbuffs[p->xmit_count], len: skb->len); |
1035 | |
1036 | #if (NUM_XMIT_BUFFS == 1) |
1037 | # ifdef NO_NOPCOMMANDS |
1038 | |
1039 | #ifdef DEBUG |
1040 | if(p->scb->cus & CU_ACTIVE) |
1041 | { |
1042 | printk("%s: Hmmm .. CU is still running and we wanna send a new packet.\n" ,dev->name); |
1043 | printk("%s: stat: %04x %04x\n" ,dev->name,p->scb->cus,swab16(p->xmit_cmds[0]->cmd_status)); |
1044 | } |
1045 | #endif |
1046 | |
1047 | p->xmit_buffs[0]->size = swab16(TBD_LAST | len); |
1048 | for(i=0;i<16;i++) |
1049 | { |
1050 | p->xmit_cmds[0]->cmd_status = 0; |
1051 | WAIT_4_SCB_CMD(); |
1052 | if( (p->scb->cus & CU_STATUS) == CU_SUSPEND) |
1053 | p->scb->cmd_cuc = CUC_RESUME; |
1054 | else |
1055 | { |
1056 | p->scb->cbl_offset = make16(p->xmit_cmds[0]); |
1057 | p->scb->cmd_cuc = CUC_START; |
1058 | } |
1059 | |
1060 | sun3_attn586(); |
1061 | if(!i) |
1062 | dev_kfree_skb(skb); |
1063 | WAIT_4_SCB_CMD(); |
1064 | if( (p->scb->cus & CU_ACTIVE)) /* test it, because CU sometimes doesn't start immediately */ |
1065 | break; |
1066 | if(p->xmit_cmds[0]->cmd_status) |
1067 | break; |
1068 | if(i==15) |
1069 | printk("%s: Can't start transmit-command.\n" ,dev->name); |
1070 | } |
1071 | # else |
1072 | next_nop = (p->nop_point + 1) & 0x1; |
1073 | p->xmit_buffs[0]->size = swab16(TBD_LAST | len); |
1074 | |
1075 | p->xmit_cmds[0]->cmd_link = p->nop_cmds[next_nop]->cmd_link |
1076 | = make16((p->nop_cmds[next_nop])); |
1077 | p->xmit_cmds[0]->cmd_status = p->nop_cmds[next_nop]->cmd_status = 0; |
1078 | |
1079 | p->nop_cmds[p->nop_point]->cmd_link = make16((p->xmit_cmds[0])); |
1080 | p->nop_point = next_nop; |
1081 | dev_kfree_skb(skb); |
1082 | # endif |
1083 | #else |
1084 | p->xmit_buffs[p->xmit_count]->size = swab16(TBD_LAST | len); |
1085 | if( (next_nop = p->xmit_count + 1) == NUM_XMIT_BUFFS ) |
1086 | next_nop = 0; |
1087 | |
1088 | p->xmit_cmds[p->xmit_count]->cmd_status = 0; |
1089 | /* linkpointer of xmit-command already points to next nop cmd */ |
1090 | p->nop_cmds[next_nop]->cmd_link = make16((p->nop_cmds[next_nop])); |
1091 | p->nop_cmds[next_nop]->cmd_status = 0; |
1092 | |
1093 | p->nop_cmds[p->xmit_count]->cmd_link = make16((p->xmit_cmds[p->xmit_count])); |
1094 | p->xmit_count = next_nop; |
1095 | |
1096 | { |
1097 | unsigned long flags; |
1098 | local_irq_save(flags); |
1099 | if(p->xmit_count != p->xmit_last) |
1100 | netif_wake_queue(dev); |
1101 | p->lock = 0; |
1102 | local_irq_restore(flags); |
1103 | } |
1104 | dev_kfree_skb(skb); |
1105 | #endif |
1106 | } |
1107 | return NETDEV_TX_OK; |
1108 | } |
1109 | |
1110 | /******************************************* |
1111 | * Someone wanna have the statistics |
1112 | */ |
1113 | |
1114 | static struct net_device_stats *sun3_82586_get_stats(struct net_device *dev) |
1115 | { |
1116 | struct priv *p = netdev_priv(dev); |
1117 | unsigned short crc,aln,rsc,ovrn; |
1118 | |
1119 | crc = swab16(p->scb->crc_errs); /* get error-statistic from the ni82586 */ |
1120 | p->scb->crc_errs = 0; |
1121 | aln = swab16(p->scb->aln_errs); |
1122 | p->scb->aln_errs = 0; |
1123 | rsc = swab16(p->scb->rsc_errs); |
1124 | p->scb->rsc_errs = 0; |
1125 | ovrn = swab16(p->scb->ovrn_errs); |
1126 | p->scb->ovrn_errs = 0; |
1127 | |
1128 | dev->stats.rx_crc_errors += crc; |
1129 | dev->stats.rx_fifo_errors += ovrn; |
1130 | dev->stats.rx_frame_errors += aln; |
1131 | dev->stats.rx_dropped += rsc; |
1132 | |
1133 | return &dev->stats; |
1134 | } |
1135 | |
1136 | /******************************************************** |
1137 | * Set MC list .. |
1138 | */ |
1139 | |
1140 | static void set_multicast_list(struct net_device *dev) |
1141 | { |
1142 | netif_stop_queue(dev); |
1143 | sun3_disint(); |
1144 | alloc586(dev); |
1145 | init586(dev); |
1146 | startrecv586(dev); |
1147 | sun3_enaint(); |
1148 | netif_wake_queue(dev); |
1149 | } |
1150 | |
1151 | #if 0 |
1152 | /* |
1153 | * DUMP .. we expect a not running CMD unit and enough space |
1154 | */ |
1155 | void sun3_82586_dump(struct net_device *dev,void *ptr) |
1156 | { |
1157 | struct priv *p = netdev_priv(dev); |
1158 | struct dump_cmd_struct *dump_cmd = (struct dump_cmd_struct *) ptr; |
1159 | int i; |
1160 | |
1161 | p->scb->cmd_cuc = CUC_ABORT; |
1162 | sun3_attn586(); |
1163 | WAIT_4_SCB_CMD(); |
1164 | WAIT_4_SCB_CMD_RUC(); |
1165 | |
1166 | dump_cmd->cmd_status = 0; |
1167 | dump_cmd->cmd_cmd = CMD_DUMP | CMD_LAST; |
1168 | dump_cmd->dump_offset = make16((dump_cmd + 1)); |
1169 | dump_cmd->cmd_link = 0xffff; |
1170 | |
1171 | p->scb->cbl_offset = make16(dump_cmd); |
1172 | p->scb->cmd_cuc = CUC_START; |
1173 | sun3_attn586(); |
1174 | WAIT_4_STAT_COMPL(dump_cmd); |
1175 | |
1176 | if( (dump_cmd->cmd_status & (STAT_COMPL|STAT_OK)) != (STAT_COMPL|STAT_OK) ) |
1177 | printk("%s: Can't get dump information.\n" ,dev->name); |
1178 | |
1179 | for(i=0;i<170;i++) { |
1180 | printk("%02x " ,(int) ((unsigned char *) (dump_cmd + 1))[i]); |
1181 | if(i % 24 == 23) |
1182 | printk("\n" ); |
1183 | } |
1184 | printk("\n" ); |
1185 | } |
1186 | #endif |
1187 | |