Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * Sun3 i82586 Ethernet driver | |
3 | * | |
4 | * Cloned from ni52.c for the Sun3 by Sam Creasey (sammy@sammy.net) | |
5 | * | |
6 | * Original copyright follows: | |
7 | * -------------------------- | |
8 | * | |
9 | * net-3-driver for the NI5210 card (i82586 Ethernet chip) | |
10 | * | |
11 | * This is an extension to the Linux operating system, and is covered by the | |
12 | * same Gnu Public License that covers that work. | |
13 | * | |
14 | * Alphacode 0.82 (96/09/29) for Linux 2.0.0 (or later) | |
15 | * Copyrights (c) 1994,1995,1996 by M.Hipp (hippm@informatik.uni-tuebingen.de) | |
16 | * -------------------------- | |
6aa20a22 | 17 | * |
1da177e4 LT |
18 | * Consult ni52.c for further notes from the original driver. |
19 | * | |
6aa20a22 | 20 | * This incarnation currently supports the OBIO version of the i82586 chip |
1da177e4 LT |
21 | * used in certain sun3 models. It should be fairly doable to expand this |
22 | * to support VME if I should every acquire such a board. | |
23 | * | |
24 | */ | |
25 | ||
26 | static int debuglevel = 0; /* debug-printk 0: off 1: a few 2: more */ | |
27 | static int automatic_resume = 0; /* experimental .. better should be zero */ | |
28 | static int rfdadd = 0; /* rfdadd=1 may be better for 8K MEM cards */ | |
29 | static int fifo=0x8; /* don't change */ | |
30 | ||
1da177e4 LT |
31 | #include <linux/module.h> |
32 | #include <linux/kernel.h> | |
33 | #include <linux/string.h> | |
34 | #include <linux/errno.h> | |
35 | #include <linux/ioport.h> | |
1da177e4 LT |
36 | #include <linux/interrupt.h> |
37 | #include <linux/delay.h> | |
38 | #include <linux/init.h> | |
39 | #include <linux/bitops.h> | |
40 | #include <asm/io.h> | |
41 | #include <asm/idprom.h> | |
42 | #include <asm/machines.h> | |
43 | #include <asm/sun3mmu.h> | |
44 | #include <asm/dvma.h> | |
45 | #include <asm/byteorder.h> | |
46 | ||
47 | #include <linux/netdevice.h> | |
48 | #include <linux/etherdevice.h> | |
49 | #include <linux/skbuff.h> | |
50 | ||
51 | #include "sun3_82586.h" | |
52 | ||
53 | #define DRV_NAME "sun3_82586" | |
54 | ||
55 | #define DEBUG /* debug on */ | |
56 | #define SYSBUSVAL 0 /* 16 Bit */ | |
57 | #define SUN3_82586_TOTAL_SIZE PAGE_SIZE | |
58 | ||
59 | #define sun3_attn586() {*(volatile unsigned char *)(dev->base_addr) |= IEOB_ATTEN; *(volatile unsigned char *)(dev->base_addr) &= ~IEOB_ATTEN;} | |
60 | #define sun3_reset586() {*(volatile unsigned char *)(dev->base_addr) = 0; udelay(100); *(volatile unsigned char *)(dev->base_addr) = IEOB_NORSET;} | |
61 | #define sun3_disint() {*(volatile unsigned char *)(dev->base_addr) &= ~IEOB_IENAB;} | |
62 | #define sun3_enaint() {*(volatile unsigned char *)(dev->base_addr) |= IEOB_IENAB;} | |
63 | #define sun3_active() {*(volatile unsigned char *)(dev->base_addr) |= (IEOB_IENAB|IEOB_ONAIR|IEOB_NORSET);} | |
64 | ||
65 | #define make32(ptr16) (p->memtop + (swab16((unsigned short) (ptr16))) ) | |
66 | #define make24(ptr32) (char *)swab32(( ((unsigned long) (ptr32)) - p->base)) | |
67 | #define make16(ptr32) (swab16((unsigned short) ((unsigned long)(ptr32) - (unsigned long) p->memtop ))) | |
68 | ||
69 | /******************* how to calculate the buffers ***************************** | |
70 | ||
71 | * IMPORTANT NOTE: if you configure only one NUM_XMIT_BUFFS, the driver works | |
72 | * --------------- in a different (more stable?) mode. Only in this mode it's | |
73 | * possible to configure the driver with 'NO_NOPCOMMANDS' | |
74 | ||
75 | sizeof(scp)=12; sizeof(scb)=16; sizeof(iscp)=8; | |
76 | sizeof(scp)+sizeof(iscp)+sizeof(scb) = 36 = INIT | |
77 | sizeof(rfd) = 24; sizeof(rbd) = 12; | |
78 | sizeof(tbd) = 8; sizeof(transmit_cmd) = 16; | |
79 | sizeof(nop_cmd) = 8; | |
80 | ||
81 | * if you don't know the driver, better do not change these values: */ | |
82 | ||
83 | #define RECV_BUFF_SIZE 1536 /* slightly oversized */ | |
84 | #define XMIT_BUFF_SIZE 1536 /* slightly oversized */ | |
85 | #define NUM_XMIT_BUFFS 1 /* config for 32K shmem */ | |
86 | #define NUM_RECV_BUFFS_8 4 /* config for 32K shared mem */ | |
87 | #define NUM_RECV_BUFFS_16 9 /* config for 32K shared mem */ | |
88 | #define NUM_RECV_BUFFS_32 16 /* config for 32K shared mem */ | |
89 | #define NO_NOPCOMMANDS /* only possible with NUM_XMIT_BUFFS=1 */ | |
90 | ||
91 | /**************************************************************************/ | |
92 | ||
93 | /* different DELAYs */ | |
94 | #define DELAY(x) mdelay(32 * x); | |
95 | #define DELAY_16(); { udelay(16); } | |
96 | #define DELAY_18(); { udelay(4); } | |
97 | ||
98 | /* wait for command with timeout: */ | |
99 | #define WAIT_4_SCB_CMD() \ | |
100 | { int i; \ | |
101 | for(i=0;i<16384;i++) { \ | |
102 | if(!p->scb->cmd_cuc) break; \ | |
103 | DELAY_18(); \ | |
104 | if(i == 16383) { \ | |
105 | printk("%s: scb_cmd timed out: %04x,%04x .. disabling i82586!!\n",dev->name,p->scb->cmd_cuc,p->scb->cus); \ | |
106 | if(!p->reseted) { p->reseted = 1; sun3_reset586(); } } } } | |
107 | ||
108 | #define WAIT_4_SCB_CMD_RUC() { int i; \ | |
109 | for(i=0;i<16384;i++) { \ | |
110 | if(!p->scb->cmd_ruc) break; \ | |
111 | DELAY_18(); \ | |
112 | if(i == 16383) { \ | |
113 | printk("%s: scb_cmd (ruc) timed out: %04x,%04x .. disabling i82586!!\n",dev->name,p->scb->cmd_ruc,p->scb->rus); \ | |
114 | if(!p->reseted) { p->reseted = 1; sun3_reset586(); } } } } | |
115 | ||
116 | #define WAIT_4_STAT_COMPL(addr) { int i; \ | |
117 | for(i=0;i<32767;i++) { \ | |
118 | if(swab16((addr)->cmd_status) & STAT_COMPL) break; \ | |
119 | DELAY_16(); DELAY_16(); } } | |
120 | ||
121 | static int sun3_82586_probe1(struct net_device *dev,int ioaddr); | |
7d12e780 | 122 | static irqreturn_t sun3_82586_interrupt(int irq,void *dev_id); |
1da177e4 LT |
123 | static int sun3_82586_open(struct net_device *dev); |
124 | static int sun3_82586_close(struct net_device *dev); | |
125 | static int sun3_82586_send_packet(struct sk_buff *,struct net_device *); | |
126 | static struct net_device_stats *sun3_82586_get_stats(struct net_device *dev); | |
127 | static void set_multicast_list(struct net_device *dev); | |
128 | static void sun3_82586_timeout(struct net_device *dev); | |
129 | #if 0 | |
130 | static void sun3_82586_dump(struct net_device *,void *); | |
131 | #endif | |
132 | ||
133 | /* helper-functions */ | |
134 | static int init586(struct net_device *dev); | |
135 | static int check586(struct net_device *dev,char *where,unsigned size); | |
136 | static void alloc586(struct net_device *dev); | |
137 | static void startrecv586(struct net_device *dev); | |
138 | static void *alloc_rfa(struct net_device *dev,void *ptr); | |
139 | static void sun3_82586_rcv_int(struct net_device *dev); | |
140 | static void sun3_82586_xmt_int(struct net_device *dev); | |
141 | static void sun3_82586_rnr_int(struct net_device *dev); | |
142 | ||
143 | struct priv | |
144 | { | |
145 | struct net_device_stats stats; | |
146 | unsigned long base; | |
147 | char *memtop; | |
148 | long int lock; | |
149 | int reseted; | |
150 | volatile struct rfd_struct *rfd_last,*rfd_top,*rfd_first; | |
151 | volatile struct scp_struct *scp; /* volatile is important */ | |
152 | volatile struct iscp_struct *iscp; /* volatile is important */ | |
153 | volatile struct scb_struct *scb; /* volatile is important */ | |
154 | volatile struct tbd_struct *xmit_buffs[NUM_XMIT_BUFFS]; | |
155 | volatile struct transmit_cmd_struct *xmit_cmds[NUM_XMIT_BUFFS]; | |
156 | #if (NUM_XMIT_BUFFS == 1) | |
157 | volatile struct nop_cmd_struct *nop_cmds[2]; | |
158 | #else | |
159 | volatile struct nop_cmd_struct *nop_cmds[NUM_XMIT_BUFFS]; | |
160 | #endif | |
161 | volatile int nop_point,num_recv_buffs; | |
162 | volatile char *xmit_cbuffs[NUM_XMIT_BUFFS]; | |
163 | volatile int xmit_count,xmit_last; | |
164 | }; | |
165 | ||
166 | /********************************************** | |
167 | * close device | |
168 | */ | |
169 | static int sun3_82586_close(struct net_device *dev) | |
170 | { | |
171 | free_irq(dev->irq, dev); | |
172 | ||
173 | sun3_reset586(); /* the hard way to stop the receiver */ | |
174 | ||
175 | netif_stop_queue(dev); | |
176 | ||
177 | return 0; | |
178 | } | |
179 | ||
180 | /********************************************** | |
181 | * open device | |
182 | */ | |
183 | static int sun3_82586_open(struct net_device *dev) | |
184 | { | |
185 | int ret; | |
186 | ||
187 | sun3_disint(); | |
188 | alloc586(dev); | |
189 | init586(dev); | |
190 | startrecv586(dev); | |
191 | sun3_enaint(); | |
192 | ||
a0607fd3 | 193 | ret = request_irq(dev->irq, sun3_82586_interrupt,0,dev->name,dev); |
1da177e4 LT |
194 | if (ret) |
195 | { | |
196 | sun3_reset586(); | |
197 | return ret; | |
198 | } | |
199 | ||
200 | netif_start_queue(dev); | |
201 | ||
202 | return 0; /* most done by init */ | |
203 | } | |
204 | ||
205 | /********************************************** | |
206 | * Check to see if there's an 82586 out there. | |
207 | */ | |
208 | static int check586(struct net_device *dev,char *where,unsigned size) | |
209 | { | |
210 | struct priv pb; | |
b74ca3a8 | 211 | struct priv *p = &pb; |
1da177e4 LT |
212 | char *iscp_addr; |
213 | int i; | |
214 | ||
215 | p->base = (unsigned long) dvma_btov(0); | |
216 | p->memtop = (char *)dvma_btov((unsigned long)where); | |
217 | p->scp = (struct scp_struct *)(p->base + SCP_DEFAULT_ADDRESS); | |
218 | memset((char *)p->scp,0, sizeof(struct scp_struct)); | |
219 | for(i=0;i<sizeof(struct scp_struct);i++) /* memory was writeable? */ | |
220 | if(((char *)p->scp)[i]) | |
221 | return 0; | |
222 | p->scp->sysbus = SYSBUSVAL; /* 1 = 8Bit-Bus, 0 = 16 Bit */ | |
223 | if(p->scp->sysbus != SYSBUSVAL) | |
224 | return 0; | |
225 | ||
226 | iscp_addr = (char *)dvma_btov((unsigned long)where); | |
6aa20a22 | 227 | |
1da177e4 LT |
228 | p->iscp = (struct iscp_struct *) iscp_addr; |
229 | memset((char *)p->iscp,0, sizeof(struct iscp_struct)); | |
230 | ||
231 | p->scp->iscp = make24(p->iscp); | |
232 | p->iscp->busy = 1; | |
233 | ||
234 | sun3_reset586(); | |
235 | sun3_attn586(); | |
236 | DELAY(1); /* wait a while... */ | |
6aa20a22 | 237 | |
1da177e4 LT |
238 | if(p->iscp->busy) /* i82586 clears 'busy' after successful init */ |
239 | return 0; | |
240 | ||
241 | return 1; | |
242 | } | |
243 | ||
244 | /****************************************************************** | |
245 | * set iscp at the right place, called by sun3_82586_probe1 and open586. | |
246 | */ | |
247 | static void alloc586(struct net_device *dev) | |
248 | { | |
8f15ea42 | 249 | struct priv *p = netdev_priv(dev); |
1da177e4 LT |
250 | |
251 | sun3_reset586(); | |
252 | DELAY(1); | |
253 | ||
254 | p->scp = (struct scp_struct *) (p->base + SCP_DEFAULT_ADDRESS); | |
255 | p->iscp = (struct iscp_struct *) dvma_btov(dev->mem_start); | |
256 | p->scb = (struct scb_struct *) ((char *)p->iscp + sizeof(struct iscp_struct)); | |
257 | ||
258 | memset((char *) p->iscp,0,sizeof(struct iscp_struct)); | |
259 | memset((char *) p->scp ,0,sizeof(struct scp_struct)); | |
260 | ||
261 | p->scp->iscp = make24(p->iscp); | |
262 | p->scp->sysbus = SYSBUSVAL; | |
263 | p->iscp->scb_offset = make16(p->scb); | |
264 | p->iscp->scb_base = make24(dvma_btov(dev->mem_start)); | |
265 | ||
266 | p->iscp->busy = 1; | |
267 | sun3_reset586(); | |
268 | sun3_attn586(); | |
269 | ||
270 | DELAY(1); | |
271 | ||
272 | if(p->iscp->busy) | |
273 | printk("%s: Init-Problems (alloc).\n",dev->name); | |
274 | ||
275 | p->reseted = 0; | |
276 | ||
277 | memset((char *)p->scb,0,sizeof(struct scb_struct)); | |
278 | } | |
279 | ||
280 | struct net_device * __init sun3_82586_probe(int unit) | |
281 | { | |
282 | struct net_device *dev; | |
283 | unsigned long ioaddr; | |
284 | static int found = 0; | |
285 | int err = -ENOMEM; | |
6aa20a22 | 286 | |
1da177e4 LT |
287 | /* check that this machine has an onboard 82586 */ |
288 | switch(idprom->id_machtype) { | |
289 | case SM_SUN3|SM_3_160: | |
290 | case SM_SUN3|SM_3_260: | |
291 | /* these machines have 82586 */ | |
292 | break; | |
293 | ||
294 | default: | |
295 | return ERR_PTR(-ENODEV); | |
296 | } | |
297 | ||
298 | if (found) | |
299 | return ERR_PTR(-ENODEV); | |
6aa20a22 | 300 | |
1da177e4 LT |
301 | ioaddr = (unsigned long)ioremap(IE_OBIO, SUN3_82586_TOTAL_SIZE); |
302 | if (!ioaddr) | |
303 | return ERR_PTR(-ENOMEM); | |
304 | found = 1; | |
6aa20a22 | 305 | |
1da177e4 LT |
306 | dev = alloc_etherdev(sizeof(struct priv)); |
307 | if (!dev) | |
308 | goto out; | |
309 | if (unit >= 0) { | |
310 | sprintf(dev->name, "eth%d", unit); | |
311 | netdev_boot_setup_check(dev); | |
312 | } | |
1da177e4 LT |
313 | |
314 | dev->irq = IE_IRQ; | |
315 | dev->base_addr = ioaddr; | |
316 | err = sun3_82586_probe1(dev, ioaddr); | |
317 | if (err) | |
318 | goto out1; | |
319 | err = register_netdev(dev); | |
320 | if (err) | |
321 | goto out2; | |
322 | return dev; | |
323 | ||
324 | out2: | |
325 | release_region(ioaddr, SUN3_82586_TOTAL_SIZE); | |
326 | out1: | |
327 | free_netdev(dev); | |
328 | out: | |
437111ca | 329 | iounmap((void __iomem *)ioaddr); |
1da177e4 LT |
330 | return ERR_PTR(err); |
331 | } | |
332 | ||
7e4fdcb9 AB |
333 | static const struct net_device_ops sun3_82586_netdev_ops = { |
334 | .ndo_open = sun3_82586_open, | |
335 | .ndo_stop = sun3_82586_close, | |
336 | .ndo_start_xmit = sun3_82586_send_packet, | |
337 | .ndo_set_multicast_list = set_multicast_list, | |
338 | .ndo_tx_timeout = sun3_82586_timeout, | |
339 | .ndo_get_stats = sun3_82586_get_stats, | |
340 | .ndo_validate_addr = eth_validate_addr, | |
341 | .ndo_set_mac_address = eth_mac_addr, | |
342 | .ndo_change_mtu = eth_change_mtu, | |
343 | }; | |
344 | ||
1da177e4 LT |
345 | static int __init sun3_82586_probe1(struct net_device *dev,int ioaddr) |
346 | { | |
347 | int i, size, retval; | |
348 | ||
349 | if (!request_region(ioaddr, SUN3_82586_TOTAL_SIZE, DRV_NAME)) | |
350 | return -EBUSY; | |
351 | ||
352 | /* copy in the ethernet address from the prom */ | |
353 | for(i = 0; i < 6 ; i++) | |
354 | dev->dev_addr[i] = idprom->id_ethaddr[i]; | |
355 | ||
356 | printk("%s: SUN3 Intel 82586 found at %lx, ",dev->name,dev->base_addr); | |
357 | ||
358 | /* | |
359 | * check (or search) IO-Memory, 32K | |
360 | */ | |
361 | size = 0x8000; | |
362 | ||
363 | dev->mem_start = (unsigned long)dvma_malloc_align(0x8000, 0x1000); | |
364 | dev->mem_end = dev->mem_start + size; | |
365 | ||
366 | if(size != 0x2000 && size != 0x4000 && size != 0x8000) { | |
367 | printk("\n%s: Illegal memory size %d. Allowed is 0x2000 or 0x4000 or 0x8000 bytes.\n",dev->name,size); | |
368 | retval = -ENODEV; | |
369 | goto out; | |
370 | } | |
371 | if(!check586(dev,(char *) dev->mem_start,size)) { | |
372 | printk("?memcheck, Can't find memory at 0x%lx with size %d!\n",dev->mem_start,size); | |
373 | retval = -ENODEV; | |
374 | goto out; | |
375 | } | |
376 | ||
8f15ea42 WC |
377 | ((struct priv *)netdev_priv(dev))->memtop = |
378 | (char *)dvma_btov(dev->mem_start); | |
379 | ((struct priv *)netdev_priv(dev))->base = (unsigned long) dvma_btov(0); | |
1da177e4 LT |
380 | alloc586(dev); |
381 | ||
382 | /* set number of receive-buffs according to memsize */ | |
383 | if(size == 0x2000) | |
8f15ea42 WC |
384 | ((struct priv *)netdev_priv(dev))->num_recv_buffs = |
385 | NUM_RECV_BUFFS_8; | |
1da177e4 | 386 | else if(size == 0x4000) |
8f15ea42 WC |
387 | ((struct priv *)netdev_priv(dev))->num_recv_buffs = |
388 | NUM_RECV_BUFFS_16; | |
1da177e4 | 389 | else |
8f15ea42 WC |
390 | ((struct priv *)netdev_priv(dev))->num_recv_buffs = |
391 | NUM_RECV_BUFFS_32; | |
1da177e4 LT |
392 | |
393 | printk("Memaddr: 0x%lx, Memsize: %d, IRQ %d\n",dev->mem_start,size, dev->irq); | |
6aa20a22 | 394 | |
7e4fdcb9 | 395 | dev->netdev_ops = &sun3_82586_netdev_ops; |
1da177e4 | 396 | dev->watchdog_timeo = HZ/20; |
1da177e4 LT |
397 | |
398 | dev->if_port = 0; | |
399 | return 0; | |
400 | out: | |
401 | release_region(ioaddr, SUN3_82586_TOTAL_SIZE); | |
402 | return retval; | |
403 | } | |
404 | ||
405 | ||
406 | static int init586(struct net_device *dev) | |
407 | { | |
408 | void *ptr; | |
409 | int i,result=0; | |
8f15ea42 | 410 | struct priv *p = netdev_priv(dev); |
1da177e4 LT |
411 | volatile struct configure_cmd_struct *cfg_cmd; |
412 | volatile struct iasetup_cmd_struct *ias_cmd; | |
413 | volatile struct tdr_cmd_struct *tdr_cmd; | |
414 | volatile struct mcsetup_cmd_struct *mc_cmd; | |
22bedad3 | 415 | struct netdev_hw_addr *ha; |
4cd24eaf | 416 | int num_addrs=netdev_mc_count(dev); |
1da177e4 LT |
417 | |
418 | ptr = (void *) ((char *)p->scb + sizeof(struct scb_struct)); | |
419 | ||
420 | cfg_cmd = (struct configure_cmd_struct *)ptr; /* configure-command */ | |
421 | cfg_cmd->cmd_status = 0; | |
422 | cfg_cmd->cmd_cmd = swab16(CMD_CONFIGURE | CMD_LAST); | |
423 | cfg_cmd->cmd_link = 0xffff; | |
424 | ||
425 | cfg_cmd->byte_cnt = 0x0a; /* number of cfg bytes */ | |
426 | cfg_cmd->fifo = fifo; /* fifo-limit (8=tx:32/rx:64) */ | |
427 | cfg_cmd->sav_bf = 0x40; /* hold or discard bad recv frames (bit 7) */ | |
428 | cfg_cmd->adr_len = 0x2e; /* addr_len |!src_insert |pre-len |loopback */ | |
429 | cfg_cmd->priority = 0x00; | |
430 | cfg_cmd->ifs = 0x60; | |
431 | cfg_cmd->time_low = 0x00; | |
432 | cfg_cmd->time_high = 0xf2; | |
433 | cfg_cmd->promisc = 0; | |
434 | if(dev->flags & IFF_ALLMULTI) { | |
435 | int len = ((char *) p->iscp - (char *) ptr - 8) / 6; | |
436 | if(num_addrs > len) { | |
437 | printk("%s: switching to promisc. mode\n",dev->name); | |
c16d1185 | 438 | cfg_cmd->promisc = 1; |
1da177e4 LT |
439 | } |
440 | } | |
441 | if(dev->flags&IFF_PROMISC) | |
c16d1185 | 442 | cfg_cmd->promisc = 1; |
1da177e4 LT |
443 | cfg_cmd->carr_coll = 0x00; |
444 | ||
445 | p->scb->cbl_offset = make16(cfg_cmd); | |
446 | p->scb->cmd_ruc = 0; | |
447 | ||
448 | p->scb->cmd_cuc = CUC_START; /* cmd.-unit start */ | |
449 | sun3_attn586(); | |
450 | ||
451 | WAIT_4_STAT_COMPL(cfg_cmd); | |
452 | ||
453 | if((swab16(cfg_cmd->cmd_status) & (STAT_OK|STAT_COMPL)) != (STAT_COMPL|STAT_OK)) | |
454 | { | |
455 | printk("%s: configure command failed: %x\n",dev->name,swab16(cfg_cmd->cmd_status)); | |
456 | return 1; | |
457 | } | |
458 | ||
459 | /* | |
460 | * individual address setup | |
461 | */ | |
462 | ||
463 | ias_cmd = (struct iasetup_cmd_struct *)ptr; | |
464 | ||
465 | ias_cmd->cmd_status = 0; | |
466 | ias_cmd->cmd_cmd = swab16(CMD_IASETUP | CMD_LAST); | |
467 | ias_cmd->cmd_link = 0xffff; | |
468 | ||
469 | memcpy((char *)&ias_cmd->iaddr,(char *) dev->dev_addr,ETH_ALEN); | |
470 | ||
471 | p->scb->cbl_offset = make16(ias_cmd); | |
472 | ||
473 | p->scb->cmd_cuc = CUC_START; /* cmd.-unit start */ | |
474 | sun3_attn586(); | |
475 | ||
476 | WAIT_4_STAT_COMPL(ias_cmd); | |
477 | ||
478 | if((swab16(ias_cmd->cmd_status) & (STAT_OK|STAT_COMPL)) != (STAT_OK|STAT_COMPL)) { | |
479 | printk("%s (82586): individual address setup command failed: %04x\n",dev->name,swab16(ias_cmd->cmd_status)); | |
480 | return 1; | |
481 | } | |
482 | ||
483 | /* | |
484 | * TDR, wire check .. e.g. no resistor e.t.c | |
485 | */ | |
6aa20a22 | 486 | |
1da177e4 LT |
487 | tdr_cmd = (struct tdr_cmd_struct *)ptr; |
488 | ||
489 | tdr_cmd->cmd_status = 0; | |
490 | tdr_cmd->cmd_cmd = swab16(CMD_TDR | CMD_LAST); | |
491 | tdr_cmd->cmd_link = 0xffff; | |
492 | tdr_cmd->status = 0; | |
493 | ||
494 | p->scb->cbl_offset = make16(tdr_cmd); | |
495 | p->scb->cmd_cuc = CUC_START; /* cmd.-unit start */ | |
496 | sun3_attn586(); | |
497 | ||
498 | WAIT_4_STAT_COMPL(tdr_cmd); | |
499 | ||
500 | if(!(swab16(tdr_cmd->cmd_status) & STAT_COMPL)) | |
501 | { | |
502 | printk("%s: Problems while running the TDR.\n",dev->name); | |
503 | } | |
504 | else | |
505 | { | |
506 | DELAY_16(); /* wait for result */ | |
507 | result = swab16(tdr_cmd->status); | |
508 | ||
509 | p->scb->cmd_cuc = p->scb->cus & STAT_MASK; | |
510 | sun3_attn586(); /* ack the interrupts */ | |
511 | ||
512 | if(result & TDR_LNK_OK) | |
513 | ; | |
514 | else if(result & TDR_XCVR_PRB) | |
515 | printk("%s: TDR: Transceiver problem. Check the cable(s)!\n",dev->name); | |
516 | else if(result & TDR_ET_OPN) | |
517 | printk("%s: TDR: No correct termination %d clocks away.\n",dev->name,result & TDR_TIMEMASK); | |
518 | else if(result & TDR_ET_SRT) | |
519 | { | |
520 | if (result & TDR_TIMEMASK) /* time == 0 -> strange :-) */ | |
521 | printk("%s: TDR: Detected a short circuit %d clocks away.\n",dev->name,result & TDR_TIMEMASK); | |
522 | } | |
523 | else | |
524 | printk("%s: TDR: Unknown status %04x\n",dev->name,result); | |
525 | } | |
526 | ||
527 | /* | |
528 | * Multicast setup | |
529 | */ | |
530 | if(num_addrs && !(dev->flags & IFF_PROMISC) ) | |
531 | { | |
532 | mc_cmd = (struct mcsetup_cmd_struct *) ptr; | |
533 | mc_cmd->cmd_status = 0; | |
534 | mc_cmd->cmd_cmd = swab16(CMD_MCSETUP | CMD_LAST); | |
535 | mc_cmd->cmd_link = 0xffff; | |
536 | mc_cmd->mc_cnt = swab16(num_addrs * 6); | |
537 | ||
5508590c | 538 | i = 0; |
22bedad3 | 539 | netdev_for_each_mc_addr(ha, dev) |
5508590c | 540 | memcpy((char *) mc_cmd->mc_list[i++], |
22bedad3 | 541 | ha->addr, ETH_ALEN); |
1da177e4 LT |
542 | |
543 | p->scb->cbl_offset = make16(mc_cmd); | |
544 | p->scb->cmd_cuc = CUC_START; | |
545 | sun3_attn586(); | |
546 | ||
547 | WAIT_4_STAT_COMPL(mc_cmd); | |
548 | ||
549 | if( (swab16(mc_cmd->cmd_status) & (STAT_COMPL|STAT_OK)) != (STAT_COMPL|STAT_OK) ) | |
550 | printk("%s: Can't apply multicast-address-list.\n",dev->name); | |
551 | } | |
552 | ||
553 | /* | |
554 | * alloc nop/xmit-cmds | |
555 | */ | |
556 | #if (NUM_XMIT_BUFFS == 1) | |
557 | for(i=0;i<2;i++) | |
558 | { | |
559 | p->nop_cmds[i] = (struct nop_cmd_struct *)ptr; | |
560 | p->nop_cmds[i]->cmd_cmd = swab16(CMD_NOP); | |
561 | p->nop_cmds[i]->cmd_status = 0; | |
562 | p->nop_cmds[i]->cmd_link = make16((p->nop_cmds[i])); | |
563 | ptr = (char *) ptr + sizeof(struct nop_cmd_struct); | |
564 | } | |
565 | #else | |
566 | for(i=0;i<NUM_XMIT_BUFFS;i++) | |
567 | { | |
568 | p->nop_cmds[i] = (struct nop_cmd_struct *)ptr; | |
569 | p->nop_cmds[i]->cmd_cmd = swab16(CMD_NOP); | |
570 | p->nop_cmds[i]->cmd_status = 0; | |
571 | p->nop_cmds[i]->cmd_link = make16((p->nop_cmds[i])); | |
572 | ptr = (char *) ptr + sizeof(struct nop_cmd_struct); | |
573 | } | |
574 | #endif | |
575 | ||
576 | ptr = alloc_rfa(dev,(void *)ptr); /* init receive-frame-area */ | |
577 | ||
578 | /* | |
579 | * alloc xmit-buffs / init xmit_cmds | |
580 | */ | |
581 | for(i=0;i<NUM_XMIT_BUFFS;i++) | |
582 | { | |
583 | p->xmit_cmds[i] = (struct transmit_cmd_struct *)ptr; /*transmit cmd/buff 0*/ | |
584 | ptr = (char *) ptr + sizeof(struct transmit_cmd_struct); | |
585 | p->xmit_cbuffs[i] = (char *)ptr; /* char-buffs */ | |
586 | ptr = (char *) ptr + XMIT_BUFF_SIZE; | |
587 | p->xmit_buffs[i] = (struct tbd_struct *)ptr; /* TBD */ | |
588 | ptr = (char *) ptr + sizeof(struct tbd_struct); | |
589 | if((void *)ptr > (void *)dev->mem_end) | |
590 | { | |
591 | printk("%s: not enough shared-mem for your configuration!\n",dev->name); | |
592 | return 1; | |
593 | } | |
594 | memset((char *)(p->xmit_cmds[i]) ,0, sizeof(struct transmit_cmd_struct)); | |
595 | memset((char *)(p->xmit_buffs[i]),0, sizeof(struct tbd_struct)); | |
596 | p->xmit_cmds[i]->cmd_link = make16(p->nop_cmds[(i+1)%NUM_XMIT_BUFFS]); | |
597 | p->xmit_cmds[i]->cmd_status = swab16(STAT_COMPL); | |
598 | p->xmit_cmds[i]->cmd_cmd = swab16(CMD_XMIT | CMD_INT); | |
599 | p->xmit_cmds[i]->tbd_offset = make16((p->xmit_buffs[i])); | |
600 | p->xmit_buffs[i]->next = 0xffff; | |
601 | p->xmit_buffs[i]->buffer = make24((p->xmit_cbuffs[i])); | |
602 | } | |
603 | ||
604 | p->xmit_count = 0; | |
605 | p->xmit_last = 0; | |
606 | #ifndef NO_NOPCOMMANDS | |
607 | p->nop_point = 0; | |
608 | #endif | |
609 | ||
610 | /* | |
611 | * 'start transmitter' | |
612 | */ | |
613 | #ifndef NO_NOPCOMMANDS | |
614 | p->scb->cbl_offset = make16(p->nop_cmds[0]); | |
615 | p->scb->cmd_cuc = CUC_START; | |
616 | sun3_attn586(); | |
617 | WAIT_4_SCB_CMD(); | |
618 | #else | |
619 | p->xmit_cmds[0]->cmd_link = make16(p->xmit_cmds[0]); | |
620 | p->xmit_cmds[0]->cmd_cmd = swab16(CMD_XMIT | CMD_SUSPEND | CMD_INT); | |
621 | #endif | |
622 | ||
623 | /* | |
624 | * ack. interrupts | |
625 | */ | |
626 | p->scb->cmd_cuc = p->scb->cus & STAT_MASK; | |
627 | sun3_attn586(); | |
628 | DELAY_16(); | |
629 | ||
630 | sun3_enaint(); | |
631 | sun3_active(); | |
632 | ||
633 | return 0; | |
634 | } | |
635 | ||
636 | /****************************************************** | |
637 | * This is a helper routine for sun3_82586_rnr_int() and init586(). | |
638 | * It sets up the Receive Frame Area (RFA). | |
639 | */ | |
640 | ||
641 | static void *alloc_rfa(struct net_device *dev,void *ptr) | |
642 | { | |
643 | volatile struct rfd_struct *rfd = (struct rfd_struct *)ptr; | |
644 | volatile struct rbd_struct *rbd; | |
645 | int i; | |
8f15ea42 | 646 | struct priv *p = netdev_priv(dev); |
1da177e4 LT |
647 | |
648 | memset((char *) rfd,0,sizeof(struct rfd_struct)*(p->num_recv_buffs+rfdadd)); | |
649 | p->rfd_first = rfd; | |
650 | ||
651 | for(i = 0; i < (p->num_recv_buffs+rfdadd); i++) { | |
652 | rfd[i].next = make16(rfd + (i+1) % (p->num_recv_buffs+rfdadd) ); | |
653 | rfd[i].rbd_offset = 0xffff; | |
654 | } | |
655 | rfd[p->num_recv_buffs-1+rfdadd].last = RFD_SUSP; /* RU suspend */ | |
656 | ||
657 | ptr = (void *) (rfd + (p->num_recv_buffs + rfdadd) ); | |
658 | ||
659 | rbd = (struct rbd_struct *) ptr; | |
660 | ptr = (void *) (rbd + p->num_recv_buffs); | |
661 | ||
662 | /* clr descriptors */ | |
663 | memset((char *) rbd,0,sizeof(struct rbd_struct)*(p->num_recv_buffs)); | |
664 | ||
665 | for(i=0;i<p->num_recv_buffs;i++) | |
666 | { | |
667 | rbd[i].next = make16((rbd + (i+1) % p->num_recv_buffs)); | |
668 | rbd[i].size = swab16(RECV_BUFF_SIZE); | |
669 | rbd[i].buffer = make24(ptr); | |
670 | ptr = (char *) ptr + RECV_BUFF_SIZE; | |
671 | } | |
672 | ||
673 | p->rfd_top = p->rfd_first; | |
674 | p->rfd_last = p->rfd_first + (p->num_recv_buffs - 1 + rfdadd); | |
675 | ||
676 | p->scb->rfa_offset = make16(p->rfd_first); | |
677 | p->rfd_first->rbd_offset = make16(rbd); | |
678 | ||
679 | return ptr; | |
680 | } | |
681 | ||
682 | ||
683 | /************************************************** | |
684 | * Interrupt Handler ... | |
685 | */ | |
686 | ||
7d12e780 | 687 | static irqreturn_t sun3_82586_interrupt(int irq,void *dev_id) |
1da177e4 LT |
688 | { |
689 | struct net_device *dev = dev_id; | |
690 | unsigned short stat; | |
691 | int cnt=0; | |
692 | struct priv *p; | |
693 | ||
694 | if (!dev) { | |
695 | printk ("sun3_82586-interrupt: irq %d for unknown device.\n",irq); | |
696 | return IRQ_NONE; | |
697 | } | |
8f15ea42 | 698 | p = netdev_priv(dev); |
1da177e4 LT |
699 | |
700 | if(debuglevel > 1) | |
701 | printk("I"); | |
702 | ||
703 | WAIT_4_SCB_CMD(); /* wait for last command */ | |
704 | ||
705 | while((stat=p->scb->cus & STAT_MASK)) | |
706 | { | |
707 | p->scb->cmd_cuc = stat; | |
708 | sun3_attn586(); | |
709 | ||
710 | if(stat & STAT_FR) /* received a frame */ | |
711 | sun3_82586_rcv_int(dev); | |
712 | ||
713 | if(stat & STAT_RNR) /* RU went 'not ready' */ | |
714 | { | |
715 | printk("(R)"); | |
716 | if(p->scb->rus & RU_SUSPEND) /* special case: RU_SUSPEND */ | |
717 | { | |
718 | WAIT_4_SCB_CMD(); | |
719 | p->scb->cmd_ruc = RUC_RESUME; | |
720 | sun3_attn586(); | |
721 | WAIT_4_SCB_CMD_RUC(); | |
722 | } | |
723 | else | |
724 | { | |
725 | printk("%s: Receiver-Unit went 'NOT READY': %04x/%02x.\n",dev->name,(int) stat,(int) p->scb->rus); | |
726 | sun3_82586_rnr_int(dev); | |
727 | } | |
728 | } | |
729 | ||
730 | if(stat & STAT_CX) /* command with I-bit set complete */ | |
731 | sun3_82586_xmt_int(dev); | |
732 | ||
733 | #ifndef NO_NOPCOMMANDS | |
734 | if(stat & STAT_CNA) /* CU went 'not ready' */ | |
735 | { | |
736 | if(netif_running(dev)) | |
737 | printk("%s: oops! CU has left active state. stat: %04x/%02x.\n",dev->name,(int) stat,(int) p->scb->cus); | |
738 | } | |
739 | #endif | |
740 | ||
741 | if(debuglevel > 1) | |
742 | printk("%d",cnt++); | |
743 | ||
744 | WAIT_4_SCB_CMD(); /* wait for ack. (sun3_82586_xmt_int can be faster than ack!!) */ | |
745 | if(p->scb->cmd_cuc) /* timed out? */ | |
746 | { | |
747 | printk("%s: Acknowledge timed out.\n",dev->name); | |
748 | sun3_disint(); | |
749 | break; | |
750 | } | |
751 | } | |
752 | ||
753 | if(debuglevel > 1) | |
754 | printk("i"); | |
755 | return IRQ_HANDLED; | |
756 | } | |
757 | ||
758 | /******************************************************* | |
759 | * receive-interrupt | |
760 | */ | |
761 | ||
762 | static void sun3_82586_rcv_int(struct net_device *dev) | |
763 | { | |
764 | int status,cnt=0; | |
765 | unsigned short totlen; | |
766 | struct sk_buff *skb; | |
767 | struct rbd_struct *rbd; | |
8f15ea42 | 768 | struct priv *p = netdev_priv(dev); |
1da177e4 LT |
769 | |
770 | if(debuglevel > 0) | |
771 | printk("R"); | |
772 | ||
773 | for(;(status = p->rfd_top->stat_high) & RFD_COMPL;) | |
774 | { | |
775 | rbd = (struct rbd_struct *) make32(p->rfd_top->rbd_offset); | |
776 | ||
777 | if(status & RFD_OK) /* frame received without error? */ | |
778 | { | |
779 | if( (totlen = swab16(rbd->status)) & RBD_LAST) /* the first and the last buffer? */ | |
780 | { | |
781 | totlen &= RBD_MASK; /* length of this frame */ | |
782 | rbd->status = 0; | |
783 | skb = (struct sk_buff *) dev_alloc_skb(totlen+2); | |
784 | if(skb != NULL) | |
785 | { | |
1da177e4 LT |
786 | skb_reserve(skb,2); |
787 | skb_put(skb,totlen); | |
8c7b7faa | 788 | skb_copy_to_linear_data(skb,(char *) p->base+swab32((unsigned long) rbd->buffer),totlen); |
1da177e4 LT |
789 | skb->protocol=eth_type_trans(skb,dev); |
790 | netif_rx(skb); | |
791 | p->stats.rx_packets++; | |
792 | } | |
793 | else | |
794 | p->stats.rx_dropped++; | |
795 | } | |
796 | else | |
797 | { | |
798 | int rstat; | |
799 | /* free all RBD's until RBD_LAST is set */ | |
800 | totlen = 0; | |
801 | while(!((rstat=swab16(rbd->status)) & RBD_LAST)) | |
802 | { | |
803 | totlen += rstat & RBD_MASK; | |
804 | if(!rstat) | |
805 | { | |
806 | printk("%s: Whoops .. no end mark in RBD list\n",dev->name); | |
807 | break; | |
808 | } | |
809 | rbd->status = 0; | |
810 | rbd = (struct rbd_struct *) make32(rbd->next); | |
811 | } | |
812 | totlen += rstat & RBD_MASK; | |
813 | rbd->status = 0; | |
814 | printk("%s: received oversized frame! length: %d\n",dev->name,totlen); | |
815 | p->stats.rx_dropped++; | |
816 | } | |
817 | } | |
818 | else /* frame !(ok), only with 'save-bad-frames' */ | |
819 | { | |
820 | printk("%s: oops! rfd-error-status: %04x\n",dev->name,status); | |
821 | p->stats.rx_errors++; | |
822 | } | |
823 | p->rfd_top->stat_high = 0; | |
824 | p->rfd_top->last = RFD_SUSP; /* maybe exchange by RFD_LAST */ | |
825 | p->rfd_top->rbd_offset = 0xffff; | |
826 | p->rfd_last->last = 0; /* delete RFD_SUSP */ | |
827 | p->rfd_last = p->rfd_top; | |
828 | p->rfd_top = (struct rfd_struct *) make32(p->rfd_top->next); /* step to next RFD */ | |
829 | p->scb->rfa_offset = make16(p->rfd_top); | |
830 | ||
831 | if(debuglevel > 0) | |
832 | printk("%d",cnt++); | |
833 | } | |
834 | ||
835 | if(automatic_resume) | |
836 | { | |
837 | WAIT_4_SCB_CMD(); | |
838 | p->scb->cmd_ruc = RUC_RESUME; | |
839 | sun3_attn586(); | |
840 | WAIT_4_SCB_CMD_RUC(); | |
841 | } | |
842 | ||
843 | #ifdef WAIT_4_BUSY | |
844 | { | |
845 | int i; | |
846 | for(i=0;i<1024;i++) | |
847 | { | |
848 | if(p->rfd_top->status) | |
849 | break; | |
850 | DELAY_16(); | |
851 | if(i == 1023) | |
852 | printk("%s: RU hasn't fetched next RFD (not busy/complete)\n",dev->name); | |
853 | } | |
854 | } | |
855 | #endif | |
856 | ||
857 | #if 0 | |
858 | if(!at_least_one) | |
859 | { | |
860 | int i; | |
861 | volatile struct rfd_struct *rfds=p->rfd_top; | |
862 | volatile struct rbd_struct *rbds; | |
863 | printk("%s: received a FC intr. without having a frame: %04x %d\n",dev->name,status,old_at_least); | |
864 | for(i=0;i< (p->num_recv_buffs+4);i++) | |
865 | { | |
866 | rbds = (struct rbd_struct *) make32(rfds->rbd_offset); | |
867 | printk("%04x:%04x ",rfds->status,rbds->status); | |
868 | rfds = (struct rfd_struct *) make32(rfds->next); | |
869 | } | |
870 | printk("\nerrs: %04x %04x stat: %04x\n",(int)p->scb->rsc_errs,(int)p->scb->ovrn_errs,(int)p->scb->status); | |
871 | 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); | |
872 | } | |
873 | old_at_least = at_least_one; | |
874 | #endif | |
875 | ||
876 | if(debuglevel > 0) | |
877 | printk("r"); | |
878 | } | |
879 | ||
880 | /********************************************************** | |
881 | * handle 'Receiver went not ready'. | |
882 | */ | |
883 | ||
884 | static void sun3_82586_rnr_int(struct net_device *dev) | |
885 | { | |
8f15ea42 | 886 | struct priv *p = netdev_priv(dev); |
1da177e4 LT |
887 | |
888 | p->stats.rx_errors++; | |
889 | ||
890 | WAIT_4_SCB_CMD(); /* wait for the last cmd, WAIT_4_FULLSTAT?? */ | |
891 | p->scb->cmd_ruc = RUC_ABORT; /* usually the RU is in the 'no resource'-state .. abort it now. */ | |
892 | sun3_attn586(); | |
893 | WAIT_4_SCB_CMD_RUC(); /* wait for accept cmd. */ | |
894 | ||
895 | alloc_rfa(dev,(char *)p->rfd_first); | |
896 | /* maybe add a check here, before restarting the RU */ | |
897 | startrecv586(dev); /* restart RU */ | |
898 | ||
899 | printk("%s: Receive-Unit restarted. Status: %04x\n",dev->name,p->scb->rus); | |
900 | ||
901 | } | |
902 | ||
903 | /********************************************************** | |
904 | * handle xmit - interrupt | |
905 | */ | |
906 | ||
907 | static void sun3_82586_xmt_int(struct net_device *dev) | |
908 | { | |
909 | int status; | |
8f15ea42 | 910 | struct priv *p = netdev_priv(dev); |
1da177e4 LT |
911 | |
912 | if(debuglevel > 0) | |
913 | printk("X"); | |
914 | ||
915 | status = swab16(p->xmit_cmds[p->xmit_last]->cmd_status); | |
916 | if(!(status & STAT_COMPL)) | |
917 | printk("%s: strange .. xmit-int without a 'COMPLETE'\n",dev->name); | |
918 | ||
919 | if(status & STAT_OK) | |
920 | { | |
921 | p->stats.tx_packets++; | |
922 | p->stats.collisions += (status & TCMD_MAXCOLLMASK); | |
923 | } | |
924 | else | |
925 | { | |
926 | p->stats.tx_errors++; | |
927 | if(status & TCMD_LATECOLL) { | |
928 | printk("%s: late collision detected.\n",dev->name); | |
929 | p->stats.collisions++; | |
930 | } | |
931 | else if(status & TCMD_NOCARRIER) { | |
932 | p->stats.tx_carrier_errors++; | |
933 | printk("%s: no carrier detected.\n",dev->name); | |
934 | } | |
935 | else if(status & TCMD_LOSTCTS) | |
936 | printk("%s: loss of CTS detected.\n",dev->name); | |
937 | else if(status & TCMD_UNDERRUN) { | |
938 | p->stats.tx_fifo_errors++; | |
939 | printk("%s: DMA underrun detected.\n",dev->name); | |
940 | } | |
941 | else if(status & TCMD_MAXCOLL) { | |
942 | printk("%s: Max. collisions exceeded.\n",dev->name); | |
943 | p->stats.collisions += 16; | |
944 | } | |
945 | } | |
946 | ||
947 | #if (NUM_XMIT_BUFFS > 1) | |
948 | if( (++p->xmit_last) == NUM_XMIT_BUFFS) | |
949 | p->xmit_last = 0; | |
950 | #endif | |
951 | netif_wake_queue(dev); | |
952 | } | |
953 | ||
954 | /*********************************************************** | |
955 | * (re)start the receiver | |
956 | */ | |
957 | ||
958 | static void startrecv586(struct net_device *dev) | |
959 | { | |
8f15ea42 | 960 | struct priv *p = netdev_priv(dev); |
1da177e4 LT |
961 | |
962 | WAIT_4_SCB_CMD(); | |
963 | WAIT_4_SCB_CMD_RUC(); | |
964 | p->scb->rfa_offset = make16(p->rfd_first); | |
965 | p->scb->cmd_ruc = RUC_START; | |
966 | sun3_attn586(); /* start cmd. */ | |
967 | WAIT_4_SCB_CMD_RUC(); /* wait for accept cmd. (no timeout!!) */ | |
968 | } | |
969 | ||
970 | static void sun3_82586_timeout(struct net_device *dev) | |
971 | { | |
8f15ea42 | 972 | struct priv *p = netdev_priv(dev); |
1da177e4 LT |
973 | #ifndef NO_NOPCOMMANDS |
974 | if(p->scb->cus & CU_ACTIVE) /* COMMAND-UNIT active? */ | |
975 | { | |
976 | netif_wake_queue(dev); | |
977 | #ifdef DEBUG | |
978 | printk("%s: strange ... timeout with CU active?!?\n",dev->name); | |
979 | 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); | |
980 | #endif | |
981 | p->scb->cmd_cuc = CUC_ABORT; | |
982 | sun3_attn586(); | |
983 | WAIT_4_SCB_CMD(); | |
984 | p->scb->cbl_offset = make16(p->nop_cmds[p->nop_point]); | |
985 | p->scb->cmd_cuc = CUC_START; | |
986 | sun3_attn586(); | |
987 | WAIT_4_SCB_CMD(); | |
1ae5dc34 | 988 | dev->trans_start = jiffies; /* prevent tx timeout */ |
1da177e4 LT |
989 | return 0; |
990 | } | |
991 | #endif | |
992 | { | |
993 | #ifdef DEBUG | |
994 | printk("%s: xmitter timed out, try to restart! stat: %02x\n",dev->name,p->scb->cus); | |
995 | printk("%s: command-stats: %04x %04x\n",dev->name,swab16(p->xmit_cmds[0]->cmd_status),swab16(p->xmit_cmds[1]->cmd_status)); | |
996 | printk("%s: check, whether you set the right interrupt number!\n",dev->name); | |
997 | #endif | |
998 | sun3_82586_close(dev); | |
999 | sun3_82586_open(dev); | |
1000 | } | |
1ae5dc34 | 1001 | dev->trans_start = jiffies; /* prevent tx timeout */ |
1da177e4 LT |
1002 | } |
1003 | ||
1004 | /****************************************************** | |
1005 | * send frame | |
1006 | */ | |
1007 | ||
1008 | static int sun3_82586_send_packet(struct sk_buff *skb, struct net_device *dev) | |
1009 | { | |
1010 | int len,i; | |
1011 | #ifndef NO_NOPCOMMANDS | |
1012 | int next_nop; | |
1013 | #endif | |
8f15ea42 | 1014 | struct priv *p = netdev_priv(dev); |
1da177e4 LT |
1015 | |
1016 | if(skb->len > XMIT_BUFF_SIZE) | |
1017 | { | |
1018 | printk("%s: Sorry, max. framelength is %d bytes. The length of your frame is %d bytes.\n",dev->name,XMIT_BUFF_SIZE,skb->len); | |
6ed10654 | 1019 | return NETDEV_TX_OK; |
1da177e4 LT |
1020 | } |
1021 | ||
1022 | netif_stop_queue(dev); | |
1023 | ||
1024 | #if(NUM_XMIT_BUFFS > 1) | |
1025 | if(test_and_set_bit(0,(void *) &p->lock)) { | |
1026 | printk("%s: Queue was locked\n",dev->name); | |
5b548140 | 1027 | return NETDEV_TX_BUSY; |
1da177e4 LT |
1028 | } |
1029 | else | |
1030 | #endif | |
1031 | { | |
1032 | len = skb->len; | |
1033 | if (len < ETH_ZLEN) { | |
cfa08bb5 GU |
1034 | memset((void *)p->xmit_cbuffs[p->xmit_count], 0, |
1035 | ETH_ZLEN); | |
1da177e4 LT |
1036 | len = ETH_ZLEN; |
1037 | } | |
cfa08bb5 | 1038 | skb_copy_from_linear_data(skb, (void *)p->xmit_cbuffs[p->xmit_count], skb->len); |
1da177e4 LT |
1039 | |
1040 | #if (NUM_XMIT_BUFFS == 1) | |
1041 | # ifdef NO_NOPCOMMANDS | |
1042 | ||
1043 | #ifdef DEBUG | |
1044 | if(p->scb->cus & CU_ACTIVE) | |
1045 | { | |
1046 | printk("%s: Hmmm .. CU is still running and we wanna send a new packet.\n",dev->name); | |
1047 | printk("%s: stat: %04x %04x\n",dev->name,p->scb->cus,swab16(p->xmit_cmds[0]->cmd_status)); | |
1048 | } | |
1049 | #endif | |
1050 | ||
1051 | p->xmit_buffs[0]->size = swab16(TBD_LAST | len); | |
1052 | for(i=0;i<16;i++) | |
1053 | { | |
1054 | p->xmit_cmds[0]->cmd_status = 0; | |
1055 | WAIT_4_SCB_CMD(); | |
1056 | if( (p->scb->cus & CU_STATUS) == CU_SUSPEND) | |
1057 | p->scb->cmd_cuc = CUC_RESUME; | |
1058 | else | |
1059 | { | |
1060 | p->scb->cbl_offset = make16(p->xmit_cmds[0]); | |
1061 | p->scb->cmd_cuc = CUC_START; | |
1062 | } | |
1063 | ||
1064 | sun3_attn586(); | |
1da177e4 LT |
1065 | if(!i) |
1066 | dev_kfree_skb(skb); | |
1067 | WAIT_4_SCB_CMD(); | |
1068 | if( (p->scb->cus & CU_ACTIVE)) /* test it, because CU sometimes doesn't start immediately */ | |
1069 | break; | |
1070 | if(p->xmit_cmds[0]->cmd_status) | |
1071 | break; | |
1072 | if(i==15) | |
1073 | printk("%s: Can't start transmit-command.\n",dev->name); | |
1074 | } | |
1075 | # else | |
1076 | next_nop = (p->nop_point + 1) & 0x1; | |
1077 | p->xmit_buffs[0]->size = swab16(TBD_LAST | len); | |
1078 | ||
1079 | p->xmit_cmds[0]->cmd_link = p->nop_cmds[next_nop]->cmd_link | |
1080 | = make16((p->nop_cmds[next_nop])); | |
1081 | p->xmit_cmds[0]->cmd_status = p->nop_cmds[next_nop]->cmd_status = 0; | |
1082 | ||
1083 | p->nop_cmds[p->nop_point]->cmd_link = make16((p->xmit_cmds[0])); | |
1da177e4 LT |
1084 | p->nop_point = next_nop; |
1085 | dev_kfree_skb(skb); | |
1086 | # endif | |
1087 | #else | |
1088 | p->xmit_buffs[p->xmit_count]->size = swab16(TBD_LAST | len); | |
1089 | if( (next_nop = p->xmit_count + 1) == NUM_XMIT_BUFFS ) | |
1090 | next_nop = 0; | |
1091 | ||
1092 | p->xmit_cmds[p->xmit_count]->cmd_status = 0; | |
1093 | /* linkpointer of xmit-command already points to next nop cmd */ | |
1094 | p->nop_cmds[next_nop]->cmd_link = make16((p->nop_cmds[next_nop])); | |
1095 | p->nop_cmds[next_nop]->cmd_status = 0; | |
1096 | ||
1097 | p->nop_cmds[p->xmit_count]->cmd_link = make16((p->xmit_cmds[p->xmit_count])); | |
1da177e4 LT |
1098 | p->xmit_count = next_nop; |
1099 | ||
1100 | { | |
1101 | unsigned long flags; | |
1102 | local_irq_save(flags); | |
1103 | if(p->xmit_count != p->xmit_last) | |
1104 | netif_wake_queue(dev); | |
1105 | p->lock = 0; | |
1106 | local_irq_restore(flags); | |
1107 | } | |
1108 | dev_kfree_skb(skb); | |
1109 | #endif | |
1110 | } | |
6ed10654 | 1111 | return NETDEV_TX_OK; |
1da177e4 LT |
1112 | } |
1113 | ||
1114 | /******************************************* | |
1115 | * Someone wanna have the statistics | |
1116 | */ | |
1117 | ||
1118 | static struct net_device_stats *sun3_82586_get_stats(struct net_device *dev) | |
1119 | { | |
8f15ea42 | 1120 | struct priv *p = netdev_priv(dev); |
1da177e4 LT |
1121 | unsigned short crc,aln,rsc,ovrn; |
1122 | ||
1123 | crc = swab16(p->scb->crc_errs); /* get error-statistic from the ni82586 */ | |
1124 | p->scb->crc_errs = 0; | |
1125 | aln = swab16(p->scb->aln_errs); | |
1126 | p->scb->aln_errs = 0; | |
1127 | rsc = swab16(p->scb->rsc_errs); | |
1128 | p->scb->rsc_errs = 0; | |
1129 | ovrn = swab16(p->scb->ovrn_errs); | |
1130 | p->scb->ovrn_errs = 0; | |
1131 | ||
1132 | p->stats.rx_crc_errors += crc; | |
1133 | p->stats.rx_fifo_errors += ovrn; | |
1134 | p->stats.rx_frame_errors += aln; | |
1135 | p->stats.rx_dropped += rsc; | |
1136 | ||
1137 | return &p->stats; | |
1138 | } | |
1139 | ||
1140 | /******************************************************** | |
1141 | * Set MC list .. | |
1142 | */ | |
1143 | ||
1144 | static void set_multicast_list(struct net_device *dev) | |
1145 | { | |
1146 | netif_stop_queue(dev); | |
1147 | sun3_disint(); | |
1148 | alloc586(dev); | |
1149 | init586(dev); | |
1150 | startrecv586(dev); | |
1151 | sun3_enaint(); | |
1152 | netif_wake_queue(dev); | |
1153 | } | |
1154 | ||
1155 | #ifdef MODULE | |
1156 | #error This code is not currently supported as a module | |
1157 | static struct net_device *dev_sun3_82586; | |
1158 | ||
1159 | int init_module(void) | |
1160 | { | |
1161 | dev_sun3_82586 = sun3_82586_probe(-1); | |
1162 | if (IS_ERR(dev_sun3_82586)) | |
1163 | return PTR_ERR(dev_sun3_82586); | |
1164 | return 0; | |
1165 | } | |
1166 | ||
1167 | void cleanup_module(void) | |
1168 | { | |
1169 | unsigned long ioaddr = dev_sun3_82586->base_addr; | |
1170 | unregister_netdev(dev_sun3_82586); | |
1171 | release_region(ioaddr, SUN3_82586_TOTAL_SIZE); | |
1172 | iounmap((void *)ioaddr); | |
1173 | free_netdev(dev_sun3_82586); | |
1174 | } | |
1175 | #endif /* MODULE */ | |
1176 | ||
1177 | #if 0 | |
1178 | /* | |
1179 | * DUMP .. we expect a not running CMD unit and enough space | |
1180 | */ | |
1181 | void sun3_82586_dump(struct net_device *dev,void *ptr) | |
1182 | { | |
8f15ea42 | 1183 | struct priv *p = netdev_priv(dev); |
1da177e4 LT |
1184 | struct dump_cmd_struct *dump_cmd = (struct dump_cmd_struct *) ptr; |
1185 | int i; | |
1186 | ||
1187 | p->scb->cmd_cuc = CUC_ABORT; | |
1188 | sun3_attn586(); | |
1189 | WAIT_4_SCB_CMD(); | |
1190 | WAIT_4_SCB_CMD_RUC(); | |
1191 | ||
1192 | dump_cmd->cmd_status = 0; | |
1193 | dump_cmd->cmd_cmd = CMD_DUMP | CMD_LAST; | |
1194 | dump_cmd->dump_offset = make16((dump_cmd + 1)); | |
1195 | dump_cmd->cmd_link = 0xffff; | |
1196 | ||
1197 | p->scb->cbl_offset = make16(dump_cmd); | |
1198 | p->scb->cmd_cuc = CUC_START; | |
1199 | sun3_attn586(); | |
1200 | WAIT_4_STAT_COMPL(dump_cmd); | |
1201 | ||
1202 | if( (dump_cmd->cmd_status & (STAT_COMPL|STAT_OK)) != (STAT_COMPL|STAT_OK) ) | |
1203 | printk("%s: Can't get dump information.\n",dev->name); | |
1204 | ||
1205 | for(i=0;i<170;i++) { | |
1206 | printk("%02x ",(int) ((unsigned char *) (dump_cmd + 1))[i]); | |
1207 | if(i % 24 == 23) | |
1208 | printk("\n"); | |
1209 | } | |
1210 | printk("\n"); | |
1211 | } | |
1212 | #endif | |
1213 | ||
1214 | MODULE_LICENSE("GPL"); |