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 | { | |
1da177e4 LT |
145 | unsigned long base; |
146 | char *memtop; | |
147 | long int lock; | |
148 | int reseted; | |
149 | volatile struct rfd_struct *rfd_last,*rfd_top,*rfd_first; | |
150 | volatile struct scp_struct *scp; /* volatile is important */ | |
151 | volatile struct iscp_struct *iscp; /* volatile is important */ | |
152 | volatile struct scb_struct *scb; /* volatile is important */ | |
153 | volatile struct tbd_struct *xmit_buffs[NUM_XMIT_BUFFS]; | |
154 | volatile struct transmit_cmd_struct *xmit_cmds[NUM_XMIT_BUFFS]; | |
155 | #if (NUM_XMIT_BUFFS == 1) | |
156 | volatile struct nop_cmd_struct *nop_cmds[2]; | |
157 | #else | |
158 | volatile struct nop_cmd_struct *nop_cmds[NUM_XMIT_BUFFS]; | |
159 | #endif | |
160 | volatile int nop_point,num_recv_buffs; | |
161 | volatile char *xmit_cbuffs[NUM_XMIT_BUFFS]; | |
162 | volatile int xmit_count,xmit_last; | |
163 | }; | |
164 | ||
165 | /********************************************** | |
166 | * close device | |
167 | */ | |
168 | static int sun3_82586_close(struct net_device *dev) | |
169 | { | |
170 | free_irq(dev->irq, dev); | |
171 | ||
172 | sun3_reset586(); /* the hard way to stop the receiver */ | |
173 | ||
174 | netif_stop_queue(dev); | |
175 | ||
176 | return 0; | |
177 | } | |
178 | ||
179 | /********************************************** | |
180 | * open device | |
181 | */ | |
182 | static int sun3_82586_open(struct net_device *dev) | |
183 | { | |
184 | int ret; | |
185 | ||
186 | sun3_disint(); | |
187 | alloc586(dev); | |
188 | init586(dev); | |
189 | startrecv586(dev); | |
190 | sun3_enaint(); | |
191 | ||
a0607fd3 | 192 | ret = request_irq(dev->irq, sun3_82586_interrupt,0,dev->name,dev); |
1da177e4 LT |
193 | if (ret) |
194 | { | |
195 | sun3_reset586(); | |
196 | return ret; | |
197 | } | |
198 | ||
199 | netif_start_queue(dev); | |
200 | ||
201 | return 0; /* most done by init */ | |
202 | } | |
203 | ||
204 | /********************************************** | |
205 | * Check to see if there's an 82586 out there. | |
206 | */ | |
207 | static int check586(struct net_device *dev,char *where,unsigned size) | |
208 | { | |
209 | struct priv pb; | |
b74ca3a8 | 210 | struct priv *p = &pb; |
1da177e4 LT |
211 | char *iscp_addr; |
212 | int i; | |
213 | ||
214 | p->base = (unsigned long) dvma_btov(0); | |
215 | p->memtop = (char *)dvma_btov((unsigned long)where); | |
216 | p->scp = (struct scp_struct *)(p->base + SCP_DEFAULT_ADDRESS); | |
217 | memset((char *)p->scp,0, sizeof(struct scp_struct)); | |
218 | for(i=0;i<sizeof(struct scp_struct);i++) /* memory was writeable? */ | |
219 | if(((char *)p->scp)[i]) | |
220 | return 0; | |
221 | p->scp->sysbus = SYSBUSVAL; /* 1 = 8Bit-Bus, 0 = 16 Bit */ | |
222 | if(p->scp->sysbus != SYSBUSVAL) | |
223 | return 0; | |
224 | ||
225 | iscp_addr = (char *)dvma_btov((unsigned long)where); | |
6aa20a22 | 226 | |
1da177e4 LT |
227 | p->iscp = (struct iscp_struct *) iscp_addr; |
228 | memset((char *)p->iscp,0, sizeof(struct iscp_struct)); | |
229 | ||
230 | p->scp->iscp = make24(p->iscp); | |
231 | p->iscp->busy = 1; | |
232 | ||
233 | sun3_reset586(); | |
234 | sun3_attn586(); | |
235 | DELAY(1); /* wait a while... */ | |
6aa20a22 | 236 | |
1da177e4 LT |
237 | if(p->iscp->busy) /* i82586 clears 'busy' after successful init */ |
238 | return 0; | |
239 | ||
240 | return 1; | |
241 | } | |
242 | ||
243 | /****************************************************************** | |
244 | * set iscp at the right place, called by sun3_82586_probe1 and open586. | |
245 | */ | |
246 | static void alloc586(struct net_device *dev) | |
247 | { | |
8f15ea42 | 248 | struct priv *p = netdev_priv(dev); |
1da177e4 LT |
249 | |
250 | sun3_reset586(); | |
251 | DELAY(1); | |
252 | ||
253 | p->scp = (struct scp_struct *) (p->base + SCP_DEFAULT_ADDRESS); | |
254 | p->iscp = (struct iscp_struct *) dvma_btov(dev->mem_start); | |
255 | p->scb = (struct scb_struct *) ((char *)p->iscp + sizeof(struct iscp_struct)); | |
256 | ||
257 | memset((char *) p->iscp,0,sizeof(struct iscp_struct)); | |
258 | memset((char *) p->scp ,0,sizeof(struct scp_struct)); | |
259 | ||
260 | p->scp->iscp = make24(p->iscp); | |
261 | p->scp->sysbus = SYSBUSVAL; | |
262 | p->iscp->scb_offset = make16(p->scb); | |
263 | p->iscp->scb_base = make24(dvma_btov(dev->mem_start)); | |
264 | ||
265 | p->iscp->busy = 1; | |
266 | sun3_reset586(); | |
267 | sun3_attn586(); | |
268 | ||
269 | DELAY(1); | |
270 | ||
271 | if(p->iscp->busy) | |
272 | printk("%s: Init-Problems (alloc).\n",dev->name); | |
273 | ||
274 | p->reseted = 0; | |
275 | ||
276 | memset((char *)p->scb,0,sizeof(struct scb_struct)); | |
277 | } | |
278 | ||
279 | struct net_device * __init sun3_82586_probe(int unit) | |
280 | { | |
281 | struct net_device *dev; | |
282 | unsigned long ioaddr; | |
283 | static int found = 0; | |
284 | int err = -ENOMEM; | |
6aa20a22 | 285 | |
1da177e4 LT |
286 | /* check that this machine has an onboard 82586 */ |
287 | switch(idprom->id_machtype) { | |
288 | case SM_SUN3|SM_3_160: | |
289 | case SM_SUN3|SM_3_260: | |
290 | /* these machines have 82586 */ | |
291 | break; | |
292 | ||
293 | default: | |
294 | return ERR_PTR(-ENODEV); | |
295 | } | |
296 | ||
297 | if (found) | |
298 | return ERR_PTR(-ENODEV); | |
6aa20a22 | 299 | |
1da177e4 LT |
300 | ioaddr = (unsigned long)ioremap(IE_OBIO, SUN3_82586_TOTAL_SIZE); |
301 | if (!ioaddr) | |
302 | return ERR_PTR(-ENOMEM); | |
303 | found = 1; | |
6aa20a22 | 304 | |
1da177e4 LT |
305 | dev = alloc_etherdev(sizeof(struct priv)); |
306 | if (!dev) | |
307 | goto out; | |
308 | if (unit >= 0) { | |
309 | sprintf(dev->name, "eth%d", unit); | |
310 | netdev_boot_setup_check(dev); | |
311 | } | |
1da177e4 LT |
312 | |
313 | dev->irq = IE_IRQ; | |
314 | dev->base_addr = ioaddr; | |
315 | err = sun3_82586_probe1(dev, ioaddr); | |
316 | if (err) | |
317 | goto out1; | |
318 | err = register_netdev(dev); | |
319 | if (err) | |
320 | goto out2; | |
321 | return dev; | |
322 | ||
323 | out2: | |
324 | release_region(ioaddr, SUN3_82586_TOTAL_SIZE); | |
325 | out1: | |
326 | free_netdev(dev); | |
327 | out: | |
437111ca | 328 | iounmap((void __iomem *)ioaddr); |
1da177e4 LT |
329 | return ERR_PTR(err); |
330 | } | |
331 | ||
7e4fdcb9 AB |
332 | static const struct net_device_ops sun3_82586_netdev_ops = { |
333 | .ndo_open = sun3_82586_open, | |
334 | .ndo_stop = sun3_82586_close, | |
335 | .ndo_start_xmit = sun3_82586_send_packet, | |
336 | .ndo_set_multicast_list = set_multicast_list, | |
337 | .ndo_tx_timeout = sun3_82586_timeout, | |
338 | .ndo_get_stats = sun3_82586_get_stats, | |
339 | .ndo_validate_addr = eth_validate_addr, | |
340 | .ndo_set_mac_address = eth_mac_addr, | |
341 | .ndo_change_mtu = eth_change_mtu, | |
342 | }; | |
343 | ||
1da177e4 LT |
344 | static int __init sun3_82586_probe1(struct net_device *dev,int ioaddr) |
345 | { | |
346 | int i, size, retval; | |
347 | ||
348 | if (!request_region(ioaddr, SUN3_82586_TOTAL_SIZE, DRV_NAME)) | |
349 | return -EBUSY; | |
350 | ||
351 | /* copy in the ethernet address from the prom */ | |
352 | for(i = 0; i < 6 ; i++) | |
353 | dev->dev_addr[i] = idprom->id_ethaddr[i]; | |
354 | ||
355 | printk("%s: SUN3 Intel 82586 found at %lx, ",dev->name,dev->base_addr); | |
356 | ||
357 | /* | |
358 | * check (or search) IO-Memory, 32K | |
359 | */ | |
360 | size = 0x8000; | |
361 | ||
362 | dev->mem_start = (unsigned long)dvma_malloc_align(0x8000, 0x1000); | |
363 | dev->mem_end = dev->mem_start + size; | |
364 | ||
365 | if(size != 0x2000 && size != 0x4000 && size != 0x8000) { | |
366 | printk("\n%s: Illegal memory size %d. Allowed is 0x2000 or 0x4000 or 0x8000 bytes.\n",dev->name,size); | |
367 | retval = -ENODEV; | |
368 | goto out; | |
369 | } | |
370 | if(!check586(dev,(char *) dev->mem_start,size)) { | |
371 | printk("?memcheck, Can't find memory at 0x%lx with size %d!\n",dev->mem_start,size); | |
372 | retval = -ENODEV; | |
373 | goto out; | |
374 | } | |
375 | ||
8f15ea42 WC |
376 | ((struct priv *)netdev_priv(dev))->memtop = |
377 | (char *)dvma_btov(dev->mem_start); | |
378 | ((struct priv *)netdev_priv(dev))->base = (unsigned long) dvma_btov(0); | |
1da177e4 LT |
379 | alloc586(dev); |
380 | ||
381 | /* set number of receive-buffs according to memsize */ | |
382 | if(size == 0x2000) | |
8f15ea42 WC |
383 | ((struct priv *)netdev_priv(dev))->num_recv_buffs = |
384 | NUM_RECV_BUFFS_8; | |
1da177e4 | 385 | else if(size == 0x4000) |
8f15ea42 WC |
386 | ((struct priv *)netdev_priv(dev))->num_recv_buffs = |
387 | NUM_RECV_BUFFS_16; | |
1da177e4 | 388 | else |
8f15ea42 WC |
389 | ((struct priv *)netdev_priv(dev))->num_recv_buffs = |
390 | NUM_RECV_BUFFS_32; | |
1da177e4 LT |
391 | |
392 | printk("Memaddr: 0x%lx, Memsize: %d, IRQ %d\n",dev->mem_start,size, dev->irq); | |
6aa20a22 | 393 | |
7e4fdcb9 | 394 | dev->netdev_ops = &sun3_82586_netdev_ops; |
1da177e4 | 395 | dev->watchdog_timeo = HZ/20; |
1da177e4 LT |
396 | |
397 | dev->if_port = 0; | |
398 | return 0; | |
399 | out: | |
400 | release_region(ioaddr, SUN3_82586_TOTAL_SIZE); | |
401 | return retval; | |
402 | } | |
403 | ||
404 | ||
405 | static int init586(struct net_device *dev) | |
406 | { | |
407 | void *ptr; | |
408 | int i,result=0; | |
8f15ea42 | 409 | struct priv *p = netdev_priv(dev); |
1da177e4 LT |
410 | volatile struct configure_cmd_struct *cfg_cmd; |
411 | volatile struct iasetup_cmd_struct *ias_cmd; | |
412 | volatile struct tdr_cmd_struct *tdr_cmd; | |
413 | volatile struct mcsetup_cmd_struct *mc_cmd; | |
22bedad3 | 414 | struct netdev_hw_addr *ha; |
4cd24eaf | 415 | int num_addrs=netdev_mc_count(dev); |
1da177e4 LT |
416 | |
417 | ptr = (void *) ((char *)p->scb + sizeof(struct scb_struct)); | |
418 | ||
419 | cfg_cmd = (struct configure_cmd_struct *)ptr; /* configure-command */ | |
420 | cfg_cmd->cmd_status = 0; | |
421 | cfg_cmd->cmd_cmd = swab16(CMD_CONFIGURE | CMD_LAST); | |
422 | cfg_cmd->cmd_link = 0xffff; | |
423 | ||
424 | cfg_cmd->byte_cnt = 0x0a; /* number of cfg bytes */ | |
425 | cfg_cmd->fifo = fifo; /* fifo-limit (8=tx:32/rx:64) */ | |
426 | cfg_cmd->sav_bf = 0x40; /* hold or discard bad recv frames (bit 7) */ | |
427 | cfg_cmd->adr_len = 0x2e; /* addr_len |!src_insert |pre-len |loopback */ | |
428 | cfg_cmd->priority = 0x00; | |
429 | cfg_cmd->ifs = 0x60; | |
430 | cfg_cmd->time_low = 0x00; | |
431 | cfg_cmd->time_high = 0xf2; | |
432 | cfg_cmd->promisc = 0; | |
433 | if(dev->flags & IFF_ALLMULTI) { | |
434 | int len = ((char *) p->iscp - (char *) ptr - 8) / 6; | |
435 | if(num_addrs > len) { | |
436 | printk("%s: switching to promisc. mode\n",dev->name); | |
c16d1185 | 437 | cfg_cmd->promisc = 1; |
1da177e4 LT |
438 | } |
439 | } | |
440 | if(dev->flags&IFF_PROMISC) | |
c16d1185 | 441 | cfg_cmd->promisc = 1; |
1da177e4 LT |
442 | cfg_cmd->carr_coll = 0x00; |
443 | ||
444 | p->scb->cbl_offset = make16(cfg_cmd); | |
445 | p->scb->cmd_ruc = 0; | |
446 | ||
447 | p->scb->cmd_cuc = CUC_START; /* cmd.-unit start */ | |
448 | sun3_attn586(); | |
449 | ||
450 | WAIT_4_STAT_COMPL(cfg_cmd); | |
451 | ||
452 | if((swab16(cfg_cmd->cmd_status) & (STAT_OK|STAT_COMPL)) != (STAT_COMPL|STAT_OK)) | |
453 | { | |
454 | printk("%s: configure command failed: %x\n",dev->name,swab16(cfg_cmd->cmd_status)); | |
455 | return 1; | |
456 | } | |
457 | ||
458 | /* | |
459 | * individual address setup | |
460 | */ | |
461 | ||
462 | ias_cmd = (struct iasetup_cmd_struct *)ptr; | |
463 | ||
464 | ias_cmd->cmd_status = 0; | |
465 | ias_cmd->cmd_cmd = swab16(CMD_IASETUP | CMD_LAST); | |
466 | ias_cmd->cmd_link = 0xffff; | |
467 | ||
468 | memcpy((char *)&ias_cmd->iaddr,(char *) dev->dev_addr,ETH_ALEN); | |
469 | ||
470 | p->scb->cbl_offset = make16(ias_cmd); | |
471 | ||
472 | p->scb->cmd_cuc = CUC_START; /* cmd.-unit start */ | |
473 | sun3_attn586(); | |
474 | ||
475 | WAIT_4_STAT_COMPL(ias_cmd); | |
476 | ||
477 | if((swab16(ias_cmd->cmd_status) & (STAT_OK|STAT_COMPL)) != (STAT_OK|STAT_COMPL)) { | |
478 | printk("%s (82586): individual address setup command failed: %04x\n",dev->name,swab16(ias_cmd->cmd_status)); | |
479 | return 1; | |
480 | } | |
481 | ||
482 | /* | |
483 | * TDR, wire check .. e.g. no resistor e.t.c | |
484 | */ | |
6aa20a22 | 485 | |
1da177e4 LT |
486 | tdr_cmd = (struct tdr_cmd_struct *)ptr; |
487 | ||
488 | tdr_cmd->cmd_status = 0; | |
489 | tdr_cmd->cmd_cmd = swab16(CMD_TDR | CMD_LAST); | |
490 | tdr_cmd->cmd_link = 0xffff; | |
491 | tdr_cmd->status = 0; | |
492 | ||
493 | p->scb->cbl_offset = make16(tdr_cmd); | |
494 | p->scb->cmd_cuc = CUC_START; /* cmd.-unit start */ | |
495 | sun3_attn586(); | |
496 | ||
497 | WAIT_4_STAT_COMPL(tdr_cmd); | |
498 | ||
499 | if(!(swab16(tdr_cmd->cmd_status) & STAT_COMPL)) | |
500 | { | |
501 | printk("%s: Problems while running the TDR.\n",dev->name); | |
502 | } | |
503 | else | |
504 | { | |
505 | DELAY_16(); /* wait for result */ | |
506 | result = swab16(tdr_cmd->status); | |
507 | ||
508 | p->scb->cmd_cuc = p->scb->cus & STAT_MASK; | |
509 | sun3_attn586(); /* ack the interrupts */ | |
510 | ||
511 | if(result & TDR_LNK_OK) | |
512 | ; | |
513 | else if(result & TDR_XCVR_PRB) | |
514 | printk("%s: TDR: Transceiver problem. Check the cable(s)!\n",dev->name); | |
515 | else if(result & TDR_ET_OPN) | |
516 | printk("%s: TDR: No correct termination %d clocks away.\n",dev->name,result & TDR_TIMEMASK); | |
517 | else if(result & TDR_ET_SRT) | |
518 | { | |
519 | if (result & TDR_TIMEMASK) /* time == 0 -> strange :-) */ | |
520 | printk("%s: TDR: Detected a short circuit %d clocks away.\n",dev->name,result & TDR_TIMEMASK); | |
521 | } | |
522 | else | |
523 | printk("%s: TDR: Unknown status %04x\n",dev->name,result); | |
524 | } | |
525 | ||
526 | /* | |
527 | * Multicast setup | |
528 | */ | |
529 | if(num_addrs && !(dev->flags & IFF_PROMISC) ) | |
530 | { | |
531 | mc_cmd = (struct mcsetup_cmd_struct *) ptr; | |
532 | mc_cmd->cmd_status = 0; | |
533 | mc_cmd->cmd_cmd = swab16(CMD_MCSETUP | CMD_LAST); | |
534 | mc_cmd->cmd_link = 0xffff; | |
535 | mc_cmd->mc_cnt = swab16(num_addrs * 6); | |
536 | ||
5508590c | 537 | i = 0; |
22bedad3 | 538 | netdev_for_each_mc_addr(ha, dev) |
5508590c | 539 | memcpy((char *) mc_cmd->mc_list[i++], |
22bedad3 | 540 | ha->addr, ETH_ALEN); |
1da177e4 LT |
541 | |
542 | p->scb->cbl_offset = make16(mc_cmd); | |
543 | p->scb->cmd_cuc = CUC_START; | |
544 | sun3_attn586(); | |
545 | ||
546 | WAIT_4_STAT_COMPL(mc_cmd); | |
547 | ||
548 | if( (swab16(mc_cmd->cmd_status) & (STAT_COMPL|STAT_OK)) != (STAT_COMPL|STAT_OK) ) | |
549 | printk("%s: Can't apply multicast-address-list.\n",dev->name); | |
550 | } | |
551 | ||
552 | /* | |
553 | * alloc nop/xmit-cmds | |
554 | */ | |
555 | #if (NUM_XMIT_BUFFS == 1) | |
556 | for(i=0;i<2;i++) | |
557 | { | |
558 | p->nop_cmds[i] = (struct nop_cmd_struct *)ptr; | |
559 | p->nop_cmds[i]->cmd_cmd = swab16(CMD_NOP); | |
560 | p->nop_cmds[i]->cmd_status = 0; | |
561 | p->nop_cmds[i]->cmd_link = make16((p->nop_cmds[i])); | |
562 | ptr = (char *) ptr + sizeof(struct nop_cmd_struct); | |
563 | } | |
564 | #else | |
565 | for(i=0;i<NUM_XMIT_BUFFS;i++) | |
566 | { | |
567 | p->nop_cmds[i] = (struct nop_cmd_struct *)ptr; | |
568 | p->nop_cmds[i]->cmd_cmd = swab16(CMD_NOP); | |
569 | p->nop_cmds[i]->cmd_status = 0; | |
570 | p->nop_cmds[i]->cmd_link = make16((p->nop_cmds[i])); | |
571 | ptr = (char *) ptr + sizeof(struct nop_cmd_struct); | |
572 | } | |
573 | #endif | |
574 | ||
575 | ptr = alloc_rfa(dev,(void *)ptr); /* init receive-frame-area */ | |
576 | ||
577 | /* | |
578 | * alloc xmit-buffs / init xmit_cmds | |
579 | */ | |
580 | for(i=0;i<NUM_XMIT_BUFFS;i++) | |
581 | { | |
582 | p->xmit_cmds[i] = (struct transmit_cmd_struct *)ptr; /*transmit cmd/buff 0*/ | |
583 | ptr = (char *) ptr + sizeof(struct transmit_cmd_struct); | |
584 | p->xmit_cbuffs[i] = (char *)ptr; /* char-buffs */ | |
585 | ptr = (char *) ptr + XMIT_BUFF_SIZE; | |
586 | p->xmit_buffs[i] = (struct tbd_struct *)ptr; /* TBD */ | |
587 | ptr = (char *) ptr + sizeof(struct tbd_struct); | |
588 | if((void *)ptr > (void *)dev->mem_end) | |
589 | { | |
590 | printk("%s: not enough shared-mem for your configuration!\n",dev->name); | |
591 | return 1; | |
592 | } | |
593 | memset((char *)(p->xmit_cmds[i]) ,0, sizeof(struct transmit_cmd_struct)); | |
594 | memset((char *)(p->xmit_buffs[i]),0, sizeof(struct tbd_struct)); | |
595 | p->xmit_cmds[i]->cmd_link = make16(p->nop_cmds[(i+1)%NUM_XMIT_BUFFS]); | |
596 | p->xmit_cmds[i]->cmd_status = swab16(STAT_COMPL); | |
597 | p->xmit_cmds[i]->cmd_cmd = swab16(CMD_XMIT | CMD_INT); | |
598 | p->xmit_cmds[i]->tbd_offset = make16((p->xmit_buffs[i])); | |
599 | p->xmit_buffs[i]->next = 0xffff; | |
600 | p->xmit_buffs[i]->buffer = make24((p->xmit_cbuffs[i])); | |
601 | } | |
602 | ||
603 | p->xmit_count = 0; | |
604 | p->xmit_last = 0; | |
605 | #ifndef NO_NOPCOMMANDS | |
606 | p->nop_point = 0; | |
607 | #endif | |
608 | ||
609 | /* | |
610 | * 'start transmitter' | |
611 | */ | |
612 | #ifndef NO_NOPCOMMANDS | |
613 | p->scb->cbl_offset = make16(p->nop_cmds[0]); | |
614 | p->scb->cmd_cuc = CUC_START; | |
615 | sun3_attn586(); | |
616 | WAIT_4_SCB_CMD(); | |
617 | #else | |
618 | p->xmit_cmds[0]->cmd_link = make16(p->xmit_cmds[0]); | |
619 | p->xmit_cmds[0]->cmd_cmd = swab16(CMD_XMIT | CMD_SUSPEND | CMD_INT); | |
620 | #endif | |
621 | ||
622 | /* | |
623 | * ack. interrupts | |
624 | */ | |
625 | p->scb->cmd_cuc = p->scb->cus & STAT_MASK; | |
626 | sun3_attn586(); | |
627 | DELAY_16(); | |
628 | ||
629 | sun3_enaint(); | |
630 | sun3_active(); | |
631 | ||
632 | return 0; | |
633 | } | |
634 | ||
635 | /****************************************************** | |
636 | * This is a helper routine for sun3_82586_rnr_int() and init586(). | |
637 | * It sets up the Receive Frame Area (RFA). | |
638 | */ | |
639 | ||
640 | static void *alloc_rfa(struct net_device *dev,void *ptr) | |
641 | { | |
642 | volatile struct rfd_struct *rfd = (struct rfd_struct *)ptr; | |
643 | volatile struct rbd_struct *rbd; | |
644 | int i; | |
8f15ea42 | 645 | struct priv *p = netdev_priv(dev); |
1da177e4 LT |
646 | |
647 | memset((char *) rfd,0,sizeof(struct rfd_struct)*(p->num_recv_buffs+rfdadd)); | |
648 | p->rfd_first = rfd; | |
649 | ||
650 | for(i = 0; i < (p->num_recv_buffs+rfdadd); i++) { | |
651 | rfd[i].next = make16(rfd + (i+1) % (p->num_recv_buffs+rfdadd) ); | |
652 | rfd[i].rbd_offset = 0xffff; | |
653 | } | |
654 | rfd[p->num_recv_buffs-1+rfdadd].last = RFD_SUSP; /* RU suspend */ | |
655 | ||
656 | ptr = (void *) (rfd + (p->num_recv_buffs + rfdadd) ); | |
657 | ||
658 | rbd = (struct rbd_struct *) ptr; | |
659 | ptr = (void *) (rbd + p->num_recv_buffs); | |
660 | ||
661 | /* clr descriptors */ | |
662 | memset((char *) rbd,0,sizeof(struct rbd_struct)*(p->num_recv_buffs)); | |
663 | ||
664 | for(i=0;i<p->num_recv_buffs;i++) | |
665 | { | |
666 | rbd[i].next = make16((rbd + (i+1) % p->num_recv_buffs)); | |
667 | rbd[i].size = swab16(RECV_BUFF_SIZE); | |
668 | rbd[i].buffer = make24(ptr); | |
669 | ptr = (char *) ptr + RECV_BUFF_SIZE; | |
670 | } | |
671 | ||
672 | p->rfd_top = p->rfd_first; | |
673 | p->rfd_last = p->rfd_first + (p->num_recv_buffs - 1 + rfdadd); | |
674 | ||
675 | p->scb->rfa_offset = make16(p->rfd_first); | |
676 | p->rfd_first->rbd_offset = make16(rbd); | |
677 | ||
678 | return ptr; | |
679 | } | |
680 | ||
681 | ||
682 | /************************************************** | |
683 | * Interrupt Handler ... | |
684 | */ | |
685 | ||
7d12e780 | 686 | static irqreturn_t sun3_82586_interrupt(int irq,void *dev_id) |
1da177e4 LT |
687 | { |
688 | struct net_device *dev = dev_id; | |
689 | unsigned short stat; | |
690 | int cnt=0; | |
691 | struct priv *p; | |
692 | ||
693 | if (!dev) { | |
694 | printk ("sun3_82586-interrupt: irq %d for unknown device.\n",irq); | |
695 | return IRQ_NONE; | |
696 | } | |
8f15ea42 | 697 | p = netdev_priv(dev); |
1da177e4 LT |
698 | |
699 | if(debuglevel > 1) | |
700 | printk("I"); | |
701 | ||
702 | WAIT_4_SCB_CMD(); /* wait for last command */ | |
703 | ||
704 | while((stat=p->scb->cus & STAT_MASK)) | |
705 | { | |
706 | p->scb->cmd_cuc = stat; | |
707 | sun3_attn586(); | |
708 | ||
709 | if(stat & STAT_FR) /* received a frame */ | |
710 | sun3_82586_rcv_int(dev); | |
711 | ||
712 | if(stat & STAT_RNR) /* RU went 'not ready' */ | |
713 | { | |
714 | printk("(R)"); | |
715 | if(p->scb->rus & RU_SUSPEND) /* special case: RU_SUSPEND */ | |
716 | { | |
717 | WAIT_4_SCB_CMD(); | |
718 | p->scb->cmd_ruc = RUC_RESUME; | |
719 | sun3_attn586(); | |
720 | WAIT_4_SCB_CMD_RUC(); | |
721 | } | |
722 | else | |
723 | { | |
724 | printk("%s: Receiver-Unit went 'NOT READY': %04x/%02x.\n",dev->name,(int) stat,(int) p->scb->rus); | |
725 | sun3_82586_rnr_int(dev); | |
726 | } | |
727 | } | |
728 | ||
729 | if(stat & STAT_CX) /* command with I-bit set complete */ | |
730 | sun3_82586_xmt_int(dev); | |
731 | ||
732 | #ifndef NO_NOPCOMMANDS | |
733 | if(stat & STAT_CNA) /* CU went 'not ready' */ | |
734 | { | |
735 | if(netif_running(dev)) | |
736 | printk("%s: oops! CU has left active state. stat: %04x/%02x.\n",dev->name,(int) stat,(int) p->scb->cus); | |
737 | } | |
738 | #endif | |
739 | ||
740 | if(debuglevel > 1) | |
741 | printk("%d",cnt++); | |
742 | ||
743 | WAIT_4_SCB_CMD(); /* wait for ack. (sun3_82586_xmt_int can be faster than ack!!) */ | |
744 | if(p->scb->cmd_cuc) /* timed out? */ | |
745 | { | |
746 | printk("%s: Acknowledge timed out.\n",dev->name); | |
747 | sun3_disint(); | |
748 | break; | |
749 | } | |
750 | } | |
751 | ||
752 | if(debuglevel > 1) | |
753 | printk("i"); | |
754 | return IRQ_HANDLED; | |
755 | } | |
756 | ||
757 | /******************************************************* | |
758 | * receive-interrupt | |
759 | */ | |
760 | ||
761 | static void sun3_82586_rcv_int(struct net_device *dev) | |
762 | { | |
763 | int status,cnt=0; | |
764 | unsigned short totlen; | |
765 | struct sk_buff *skb; | |
766 | struct rbd_struct *rbd; | |
8f15ea42 | 767 | struct priv *p = netdev_priv(dev); |
1da177e4 LT |
768 | |
769 | if(debuglevel > 0) | |
770 | printk("R"); | |
771 | ||
772 | for(;(status = p->rfd_top->stat_high) & RFD_COMPL;) | |
773 | { | |
774 | rbd = (struct rbd_struct *) make32(p->rfd_top->rbd_offset); | |
775 | ||
776 | if(status & RFD_OK) /* frame received without error? */ | |
777 | { | |
778 | if( (totlen = swab16(rbd->status)) & RBD_LAST) /* the first and the last buffer? */ | |
779 | { | |
780 | totlen &= RBD_MASK; /* length of this frame */ | |
781 | rbd->status = 0; | |
782 | skb = (struct sk_buff *) dev_alloc_skb(totlen+2); | |
783 | if(skb != NULL) | |
784 | { | |
1da177e4 LT |
785 | skb_reserve(skb,2); |
786 | skb_put(skb,totlen); | |
8c7b7faa | 787 | skb_copy_to_linear_data(skb,(char *) p->base+swab32((unsigned long) rbd->buffer),totlen); |
1da177e4 LT |
788 | skb->protocol=eth_type_trans(skb,dev); |
789 | netif_rx(skb); | |
4e922723 | 790 | dev->stats.rx_packets++; |
1da177e4 LT |
791 | } |
792 | else | |
4e922723 | 793 | dev->stats.rx_dropped++; |
1da177e4 LT |
794 | } |
795 | else | |
796 | { | |
797 | int rstat; | |
798 | /* free all RBD's until RBD_LAST is set */ | |
799 | totlen = 0; | |
800 | while(!((rstat=swab16(rbd->status)) & RBD_LAST)) | |
801 | { | |
802 | totlen += rstat & RBD_MASK; | |
803 | if(!rstat) | |
804 | { | |
805 | printk("%s: Whoops .. no end mark in RBD list\n",dev->name); | |
806 | break; | |
807 | } | |
808 | rbd->status = 0; | |
809 | rbd = (struct rbd_struct *) make32(rbd->next); | |
810 | } | |
811 | totlen += rstat & RBD_MASK; | |
812 | rbd->status = 0; | |
813 | printk("%s: received oversized frame! length: %d\n",dev->name,totlen); | |
4e922723 | 814 | dev->stats.rx_dropped++; |
1da177e4 LT |
815 | } |
816 | } | |
817 | else /* frame !(ok), only with 'save-bad-frames' */ | |
818 | { | |
819 | printk("%s: oops! rfd-error-status: %04x\n",dev->name,status); | |
4e922723 | 820 | dev->stats.rx_errors++; |
1da177e4 LT |
821 | } |
822 | p->rfd_top->stat_high = 0; | |
823 | p->rfd_top->last = RFD_SUSP; /* maybe exchange by RFD_LAST */ | |
824 | p->rfd_top->rbd_offset = 0xffff; | |
825 | p->rfd_last->last = 0; /* delete RFD_SUSP */ | |
826 | p->rfd_last = p->rfd_top; | |
827 | p->rfd_top = (struct rfd_struct *) make32(p->rfd_top->next); /* step to next RFD */ | |
828 | p->scb->rfa_offset = make16(p->rfd_top); | |
829 | ||
830 | if(debuglevel > 0) | |
831 | printk("%d",cnt++); | |
832 | } | |
833 | ||
834 | if(automatic_resume) | |
835 | { | |
836 | WAIT_4_SCB_CMD(); | |
837 | p->scb->cmd_ruc = RUC_RESUME; | |
838 | sun3_attn586(); | |
839 | WAIT_4_SCB_CMD_RUC(); | |
840 | } | |
841 | ||
842 | #ifdef WAIT_4_BUSY | |
843 | { | |
844 | int i; | |
845 | for(i=0;i<1024;i++) | |
846 | { | |
847 | if(p->rfd_top->status) | |
848 | break; | |
849 | DELAY_16(); | |
850 | if(i == 1023) | |
851 | printk("%s: RU hasn't fetched next RFD (not busy/complete)\n",dev->name); | |
852 | } | |
853 | } | |
854 | #endif | |
855 | ||
856 | #if 0 | |
857 | if(!at_least_one) | |
858 | { | |
859 | int i; | |
860 | volatile struct rfd_struct *rfds=p->rfd_top; | |
861 | volatile struct rbd_struct *rbds; | |
862 | printk("%s: received a FC intr. without having a frame: %04x %d\n",dev->name,status,old_at_least); | |
863 | for(i=0;i< (p->num_recv_buffs+4);i++) | |
864 | { | |
865 | rbds = (struct rbd_struct *) make32(rfds->rbd_offset); | |
866 | printk("%04x:%04x ",rfds->status,rbds->status); | |
867 | rfds = (struct rfd_struct *) make32(rfds->next); | |
868 | } | |
869 | printk("\nerrs: %04x %04x stat: %04x\n",(int)p->scb->rsc_errs,(int)p->scb->ovrn_errs,(int)p->scb->status); | |
870 | 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); | |
871 | } | |
872 | old_at_least = at_least_one; | |
873 | #endif | |
874 | ||
875 | if(debuglevel > 0) | |
876 | printk("r"); | |
877 | } | |
878 | ||
879 | /********************************************************** | |
880 | * handle 'Receiver went not ready'. | |
881 | */ | |
882 | ||
883 | static void sun3_82586_rnr_int(struct net_device *dev) | |
884 | { | |
8f15ea42 | 885 | struct priv *p = netdev_priv(dev); |
1da177e4 | 886 | |
4e922723 | 887 | dev->stats.rx_errors++; |
1da177e4 LT |
888 | |
889 | WAIT_4_SCB_CMD(); /* wait for the last cmd, WAIT_4_FULLSTAT?? */ | |
890 | p->scb->cmd_ruc = RUC_ABORT; /* usually the RU is in the 'no resource'-state .. abort it now. */ | |
891 | sun3_attn586(); | |
892 | WAIT_4_SCB_CMD_RUC(); /* wait for accept cmd. */ | |
893 | ||
894 | alloc_rfa(dev,(char *)p->rfd_first); | |
895 | /* maybe add a check here, before restarting the RU */ | |
896 | startrecv586(dev); /* restart RU */ | |
897 | ||
898 | printk("%s: Receive-Unit restarted. Status: %04x\n",dev->name,p->scb->rus); | |
899 | ||
900 | } | |
901 | ||
902 | /********************************************************** | |
903 | * handle xmit - interrupt | |
904 | */ | |
905 | ||
906 | static void sun3_82586_xmt_int(struct net_device *dev) | |
907 | { | |
908 | int status; | |
8f15ea42 | 909 | struct priv *p = netdev_priv(dev); |
1da177e4 LT |
910 | |
911 | if(debuglevel > 0) | |
912 | printk("X"); | |
913 | ||
914 | status = swab16(p->xmit_cmds[p->xmit_last]->cmd_status); | |
915 | if(!(status & STAT_COMPL)) | |
916 | printk("%s: strange .. xmit-int without a 'COMPLETE'\n",dev->name); | |
917 | ||
918 | if(status & STAT_OK) | |
919 | { | |
4e922723 KV |
920 | dev->stats.tx_packets++; |
921 | dev->stats.collisions += (status & TCMD_MAXCOLLMASK); | |
1da177e4 LT |
922 | } |
923 | else | |
924 | { | |
4e922723 | 925 | dev->stats.tx_errors++; |
1da177e4 LT |
926 | if(status & TCMD_LATECOLL) { |
927 | printk("%s: late collision detected.\n",dev->name); | |
4e922723 | 928 | dev->stats.collisions++; |
1da177e4 LT |
929 | } |
930 | else if(status & TCMD_NOCARRIER) { | |
4e922723 | 931 | dev->stats.tx_carrier_errors++; |
1da177e4 LT |
932 | printk("%s: no carrier detected.\n",dev->name); |
933 | } | |
934 | else if(status & TCMD_LOSTCTS) | |
935 | printk("%s: loss of CTS detected.\n",dev->name); | |
936 | else if(status & TCMD_UNDERRUN) { | |
4e922723 | 937 | dev->stats.tx_fifo_errors++; |
1da177e4 LT |
938 | printk("%s: DMA underrun detected.\n",dev->name); |
939 | } | |
940 | else if(status & TCMD_MAXCOLL) { | |
941 | printk("%s: Max. collisions exceeded.\n",dev->name); | |
4e922723 | 942 | dev->stats.collisions += 16; |
1da177e4 LT |
943 | } |
944 | } | |
945 | ||
946 | #if (NUM_XMIT_BUFFS > 1) | |
947 | if( (++p->xmit_last) == NUM_XMIT_BUFFS) | |
948 | p->xmit_last = 0; | |
949 | #endif | |
950 | netif_wake_queue(dev); | |
951 | } | |
952 | ||
953 | /*********************************************************** | |
954 | * (re)start the receiver | |
955 | */ | |
956 | ||
957 | static void startrecv586(struct net_device *dev) | |
958 | { | |
8f15ea42 | 959 | struct priv *p = netdev_priv(dev); |
1da177e4 LT |
960 | |
961 | WAIT_4_SCB_CMD(); | |
962 | WAIT_4_SCB_CMD_RUC(); | |
963 | p->scb->rfa_offset = make16(p->rfd_first); | |
964 | p->scb->cmd_ruc = RUC_START; | |
965 | sun3_attn586(); /* start cmd. */ | |
966 | WAIT_4_SCB_CMD_RUC(); /* wait for accept cmd. (no timeout!!) */ | |
967 | } | |
968 | ||
969 | static void sun3_82586_timeout(struct net_device *dev) | |
970 | { | |
8f15ea42 | 971 | struct priv *p = netdev_priv(dev); |
1da177e4 LT |
972 | #ifndef NO_NOPCOMMANDS |
973 | if(p->scb->cus & CU_ACTIVE) /* COMMAND-UNIT active? */ | |
974 | { | |
975 | netif_wake_queue(dev); | |
976 | #ifdef DEBUG | |
977 | printk("%s: strange ... timeout with CU active?!?\n",dev->name); | |
978 | 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); | |
979 | #endif | |
980 | p->scb->cmd_cuc = CUC_ABORT; | |
981 | sun3_attn586(); | |
982 | WAIT_4_SCB_CMD(); | |
983 | p->scb->cbl_offset = make16(p->nop_cmds[p->nop_point]); | |
984 | p->scb->cmd_cuc = CUC_START; | |
985 | sun3_attn586(); | |
986 | WAIT_4_SCB_CMD(); | |
1ae5dc34 | 987 | dev->trans_start = jiffies; /* prevent tx timeout */ |
1da177e4 LT |
988 | return 0; |
989 | } | |
990 | #endif | |
991 | { | |
992 | #ifdef DEBUG | |
993 | printk("%s: xmitter timed out, try to restart! stat: %02x\n",dev->name,p->scb->cus); | |
994 | printk("%s: command-stats: %04x %04x\n",dev->name,swab16(p->xmit_cmds[0]->cmd_status),swab16(p->xmit_cmds[1]->cmd_status)); | |
995 | printk("%s: check, whether you set the right interrupt number!\n",dev->name); | |
996 | #endif | |
997 | sun3_82586_close(dev); | |
998 | sun3_82586_open(dev); | |
999 | } | |
1ae5dc34 | 1000 | dev->trans_start = jiffies; /* prevent tx timeout */ |
1da177e4 LT |
1001 | } |
1002 | ||
1003 | /****************************************************** | |
1004 | * send frame | |
1005 | */ | |
1006 | ||
1007 | static int sun3_82586_send_packet(struct sk_buff *skb, struct net_device *dev) | |
1008 | { | |
1009 | int len,i; | |
1010 | #ifndef NO_NOPCOMMANDS | |
1011 | int next_nop; | |
1012 | #endif | |
8f15ea42 | 1013 | struct priv *p = netdev_priv(dev); |
1da177e4 LT |
1014 | |
1015 | if(skb->len > XMIT_BUFF_SIZE) | |
1016 | { | |
1017 | 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 | 1018 | return NETDEV_TX_OK; |
1da177e4 LT |
1019 | } |
1020 | ||
1021 | netif_stop_queue(dev); | |
1022 | ||
1023 | #if(NUM_XMIT_BUFFS > 1) | |
1024 | if(test_and_set_bit(0,(void *) &p->lock)) { | |
1025 | printk("%s: Queue was locked\n",dev->name); | |
5b548140 | 1026 | return NETDEV_TX_BUSY; |
1da177e4 LT |
1027 | } |
1028 | else | |
1029 | #endif | |
1030 | { | |
1031 | len = skb->len; | |
1032 | if (len < ETH_ZLEN) { | |
cfa08bb5 GU |
1033 | memset((void *)p->xmit_cbuffs[p->xmit_count], 0, |
1034 | ETH_ZLEN); | |
1da177e4 LT |
1035 | len = ETH_ZLEN; |
1036 | } | |
cfa08bb5 | 1037 | skb_copy_from_linear_data(skb, (void *)p->xmit_cbuffs[p->xmit_count], skb->len); |
1da177e4 LT |
1038 | |
1039 | #if (NUM_XMIT_BUFFS == 1) | |
1040 | # ifdef NO_NOPCOMMANDS | |
1041 | ||
1042 | #ifdef DEBUG | |
1043 | if(p->scb->cus & CU_ACTIVE) | |
1044 | { | |
1045 | printk("%s: Hmmm .. CU is still running and we wanna send a new packet.\n",dev->name); | |
1046 | printk("%s: stat: %04x %04x\n",dev->name,p->scb->cus,swab16(p->xmit_cmds[0]->cmd_status)); | |
1047 | } | |
1048 | #endif | |
1049 | ||
1050 | p->xmit_buffs[0]->size = swab16(TBD_LAST | len); | |
1051 | for(i=0;i<16;i++) | |
1052 | { | |
1053 | p->xmit_cmds[0]->cmd_status = 0; | |
1054 | WAIT_4_SCB_CMD(); | |
1055 | if( (p->scb->cus & CU_STATUS) == CU_SUSPEND) | |
1056 | p->scb->cmd_cuc = CUC_RESUME; | |
1057 | else | |
1058 | { | |
1059 | p->scb->cbl_offset = make16(p->xmit_cmds[0]); | |
1060 | p->scb->cmd_cuc = CUC_START; | |
1061 | } | |
1062 | ||
1063 | sun3_attn586(); | |
1da177e4 LT |
1064 | if(!i) |
1065 | dev_kfree_skb(skb); | |
1066 | WAIT_4_SCB_CMD(); | |
1067 | if( (p->scb->cus & CU_ACTIVE)) /* test it, because CU sometimes doesn't start immediately */ | |
1068 | break; | |
1069 | if(p->xmit_cmds[0]->cmd_status) | |
1070 | break; | |
1071 | if(i==15) | |
1072 | printk("%s: Can't start transmit-command.\n",dev->name); | |
1073 | } | |
1074 | # else | |
1075 | next_nop = (p->nop_point + 1) & 0x1; | |
1076 | p->xmit_buffs[0]->size = swab16(TBD_LAST | len); | |
1077 | ||
1078 | p->xmit_cmds[0]->cmd_link = p->nop_cmds[next_nop]->cmd_link | |
1079 | = make16((p->nop_cmds[next_nop])); | |
1080 | p->xmit_cmds[0]->cmd_status = p->nop_cmds[next_nop]->cmd_status = 0; | |
1081 | ||
1082 | p->nop_cmds[p->nop_point]->cmd_link = make16((p->xmit_cmds[0])); | |
1da177e4 LT |
1083 | p->nop_point = next_nop; |
1084 | dev_kfree_skb(skb); | |
1085 | # endif | |
1086 | #else | |
1087 | p->xmit_buffs[p->xmit_count]->size = swab16(TBD_LAST | len); | |
1088 | if( (next_nop = p->xmit_count + 1) == NUM_XMIT_BUFFS ) | |
1089 | next_nop = 0; | |
1090 | ||
1091 | p->xmit_cmds[p->xmit_count]->cmd_status = 0; | |
1092 | /* linkpointer of xmit-command already points to next nop cmd */ | |
1093 | p->nop_cmds[next_nop]->cmd_link = make16((p->nop_cmds[next_nop])); | |
1094 | p->nop_cmds[next_nop]->cmd_status = 0; | |
1095 | ||
1096 | p->nop_cmds[p->xmit_count]->cmd_link = make16((p->xmit_cmds[p->xmit_count])); | |
1da177e4 LT |
1097 | p->xmit_count = next_nop; |
1098 | ||
1099 | { | |
1100 | unsigned long flags; | |
1101 | local_irq_save(flags); | |
1102 | if(p->xmit_count != p->xmit_last) | |
1103 | netif_wake_queue(dev); | |
1104 | p->lock = 0; | |
1105 | local_irq_restore(flags); | |
1106 | } | |
1107 | dev_kfree_skb(skb); | |
1108 | #endif | |
1109 | } | |
6ed10654 | 1110 | return NETDEV_TX_OK; |
1da177e4 LT |
1111 | } |
1112 | ||
1113 | /******************************************* | |
1114 | * Someone wanna have the statistics | |
1115 | */ | |
1116 | ||
1117 | static struct net_device_stats *sun3_82586_get_stats(struct net_device *dev) | |
1118 | { | |
8f15ea42 | 1119 | struct priv *p = netdev_priv(dev); |
1da177e4 LT |
1120 | unsigned short crc,aln,rsc,ovrn; |
1121 | ||
1122 | crc = swab16(p->scb->crc_errs); /* get error-statistic from the ni82586 */ | |
1123 | p->scb->crc_errs = 0; | |
1124 | aln = swab16(p->scb->aln_errs); | |
1125 | p->scb->aln_errs = 0; | |
1126 | rsc = swab16(p->scb->rsc_errs); | |
1127 | p->scb->rsc_errs = 0; | |
1128 | ovrn = swab16(p->scb->ovrn_errs); | |
1129 | p->scb->ovrn_errs = 0; | |
1130 | ||
4e922723 KV |
1131 | dev->stats.rx_crc_errors += crc; |
1132 | dev->stats.rx_fifo_errors += ovrn; | |
1133 | dev->stats.rx_frame_errors += aln; | |
1134 | dev->stats.rx_dropped += rsc; | |
1da177e4 | 1135 | |
4e922723 | 1136 | return &dev->stats; |
1da177e4 LT |
1137 | } |
1138 | ||
1139 | /******************************************************** | |
1140 | * Set MC list .. | |
1141 | */ | |
1142 | ||
1143 | static void set_multicast_list(struct net_device *dev) | |
1144 | { | |
1145 | netif_stop_queue(dev); | |
1146 | sun3_disint(); | |
1147 | alloc586(dev); | |
1148 | init586(dev); | |
1149 | startrecv586(dev); | |
1150 | sun3_enaint(); | |
1151 | netif_wake_queue(dev); | |
1152 | } | |
1153 | ||
1154 | #ifdef MODULE | |
1155 | #error This code is not currently supported as a module | |
1156 | static struct net_device *dev_sun3_82586; | |
1157 | ||
1158 | int init_module(void) | |
1159 | { | |
1160 | dev_sun3_82586 = sun3_82586_probe(-1); | |
1161 | if (IS_ERR(dev_sun3_82586)) | |
1162 | return PTR_ERR(dev_sun3_82586); | |
1163 | return 0; | |
1164 | } | |
1165 | ||
1166 | void cleanup_module(void) | |
1167 | { | |
1168 | unsigned long ioaddr = dev_sun3_82586->base_addr; | |
1169 | unregister_netdev(dev_sun3_82586); | |
1170 | release_region(ioaddr, SUN3_82586_TOTAL_SIZE); | |
1171 | iounmap((void *)ioaddr); | |
1172 | free_netdev(dev_sun3_82586); | |
1173 | } | |
1174 | #endif /* MODULE */ | |
1175 | ||
1176 | #if 0 | |
1177 | /* | |
1178 | * DUMP .. we expect a not running CMD unit and enough space | |
1179 | */ | |
1180 | void sun3_82586_dump(struct net_device *dev,void *ptr) | |
1181 | { | |
8f15ea42 | 1182 | struct priv *p = netdev_priv(dev); |
1da177e4 LT |
1183 | struct dump_cmd_struct *dump_cmd = (struct dump_cmd_struct *) ptr; |
1184 | int i; | |
1185 | ||
1186 | p->scb->cmd_cuc = CUC_ABORT; | |
1187 | sun3_attn586(); | |
1188 | WAIT_4_SCB_CMD(); | |
1189 | WAIT_4_SCB_CMD_RUC(); | |
1190 | ||
1191 | dump_cmd->cmd_status = 0; | |
1192 | dump_cmd->cmd_cmd = CMD_DUMP | CMD_LAST; | |
1193 | dump_cmd->dump_offset = make16((dump_cmd + 1)); | |
1194 | dump_cmd->cmd_link = 0xffff; | |
1195 | ||
1196 | p->scb->cbl_offset = make16(dump_cmd); | |
1197 | p->scb->cmd_cuc = CUC_START; | |
1198 | sun3_attn586(); | |
1199 | WAIT_4_STAT_COMPL(dump_cmd); | |
1200 | ||
1201 | if( (dump_cmd->cmd_status & (STAT_COMPL|STAT_OK)) != (STAT_COMPL|STAT_OK) ) | |
1202 | printk("%s: Can't get dump information.\n",dev->name); | |
1203 | ||
1204 | for(i=0;i<170;i++) { | |
1205 | printk("%02x ",(int) ((unsigned char *) (dump_cmd + 1))[i]); | |
1206 | if(i % 24 == 23) | |
1207 | printk("\n"); | |
1208 | } | |
1209 | printk("\n"); | |
1210 | } | |
1211 | #endif | |
1212 | ||
1213 | MODULE_LICENSE("GPL"); |