diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
---|---|---|
committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/net/sun3_82586.c |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'drivers/net/sun3_82586.c')
-rw-r--r-- | drivers/net/sun3_82586.c | 1211 |
1 files changed, 1211 insertions, 0 deletions
diff --git a/drivers/net/sun3_82586.c b/drivers/net/sun3_82586.c new file mode 100644 index 000000000000..d5a58fb30d3a --- /dev/null +++ b/drivers/net/sun3_82586.c | |||
@@ -0,0 +1,1211 @@ | |||
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 | * -------------------------- | ||
17 | * | ||
18 | * Consult ni52.c for further notes from the original driver. | ||
19 | * | ||
20 | * This incarnation currently supports the OBIO version of the i82586 chip | ||
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 | |||
31 | /* #define REALLY_SLOW_IO */ | ||
32 | |||
33 | #include <linux/module.h> | ||
34 | #include <linux/kernel.h> | ||
35 | #include <linux/string.h> | ||
36 | #include <linux/errno.h> | ||
37 | #include <linux/ioport.h> | ||
38 | #include <linux/slab.h> | ||
39 | #include <linux/interrupt.h> | ||
40 | #include <linux/delay.h> | ||
41 | #include <linux/init.h> | ||
42 | #include <linux/bitops.h> | ||
43 | #include <asm/io.h> | ||
44 | #include <asm/idprom.h> | ||
45 | #include <asm/machines.h> | ||
46 | #include <asm/sun3mmu.h> | ||
47 | #include <asm/dvma.h> | ||
48 | #include <asm/byteorder.h> | ||
49 | |||
50 | #include <linux/netdevice.h> | ||
51 | #include <linux/etherdevice.h> | ||
52 | #include <linux/skbuff.h> | ||
53 | |||
54 | #include "sun3_82586.h" | ||
55 | |||
56 | #define DRV_NAME "sun3_82586" | ||
57 | |||
58 | #define DEBUG /* debug on */ | ||
59 | #define SYSBUSVAL 0 /* 16 Bit */ | ||
60 | #define SUN3_82586_TOTAL_SIZE PAGE_SIZE | ||
61 | |||
62 | #define sun3_attn586() {*(volatile unsigned char *)(dev->base_addr) |= IEOB_ATTEN; *(volatile unsigned char *)(dev->base_addr) &= ~IEOB_ATTEN;} | ||
63 | #define sun3_reset586() {*(volatile unsigned char *)(dev->base_addr) = 0; udelay(100); *(volatile unsigned char *)(dev->base_addr) = IEOB_NORSET;} | ||
64 | #define sun3_disint() {*(volatile unsigned char *)(dev->base_addr) &= ~IEOB_IENAB;} | ||
65 | #define sun3_enaint() {*(volatile unsigned char *)(dev->base_addr) |= IEOB_IENAB;} | ||
66 | #define sun3_active() {*(volatile unsigned char *)(dev->base_addr) |= (IEOB_IENAB|IEOB_ONAIR|IEOB_NORSET);} | ||
67 | |||
68 | #define make32(ptr16) (p->memtop + (swab16((unsigned short) (ptr16))) ) | ||
69 | #define make24(ptr32) (char *)swab32(( ((unsigned long) (ptr32)) - p->base)) | ||
70 | #define make16(ptr32) (swab16((unsigned short) ((unsigned long)(ptr32) - (unsigned long) p->memtop ))) | ||
71 | |||
72 | /******************* how to calculate the buffers ***************************** | ||
73 | |||
74 | * IMPORTANT NOTE: if you configure only one NUM_XMIT_BUFFS, the driver works | ||
75 | * --------------- in a different (more stable?) mode. Only in this mode it's | ||
76 | * possible to configure the driver with 'NO_NOPCOMMANDS' | ||
77 | |||
78 | sizeof(scp)=12; sizeof(scb)=16; sizeof(iscp)=8; | ||
79 | sizeof(scp)+sizeof(iscp)+sizeof(scb) = 36 = INIT | ||
80 | sizeof(rfd) = 24; sizeof(rbd) = 12; | ||
81 | sizeof(tbd) = 8; sizeof(transmit_cmd) = 16; | ||
82 | sizeof(nop_cmd) = 8; | ||
83 | |||
84 | * if you don't know the driver, better do not change these values: */ | ||
85 | |||
86 | #define RECV_BUFF_SIZE 1536 /* slightly oversized */ | ||
87 | #define XMIT_BUFF_SIZE 1536 /* slightly oversized */ | ||
88 | #define NUM_XMIT_BUFFS 1 /* config for 32K shmem */ | ||
89 | #define NUM_RECV_BUFFS_8 4 /* config for 32K shared mem */ | ||
90 | #define NUM_RECV_BUFFS_16 9 /* config for 32K shared mem */ | ||
91 | #define NUM_RECV_BUFFS_32 16 /* config for 32K shared mem */ | ||
92 | #define NO_NOPCOMMANDS /* only possible with NUM_XMIT_BUFFS=1 */ | ||
93 | |||
94 | /**************************************************************************/ | ||
95 | |||
96 | /* different DELAYs */ | ||
97 | #define DELAY(x) mdelay(32 * x); | ||
98 | #define DELAY_16(); { udelay(16); } | ||
99 | #define DELAY_18(); { udelay(4); } | ||
100 | |||
101 | /* wait for command with timeout: */ | ||
102 | #define WAIT_4_SCB_CMD() \ | ||
103 | { int i; \ | ||
104 | for(i=0;i<16384;i++) { \ | ||
105 | if(!p->scb->cmd_cuc) break; \ | ||
106 | DELAY_18(); \ | ||
107 | if(i == 16383) { \ | ||
108 | printk("%s: scb_cmd timed out: %04x,%04x .. disabling i82586!!\n",dev->name,p->scb->cmd_cuc,p->scb->cus); \ | ||
109 | if(!p->reseted) { p->reseted = 1; sun3_reset586(); } } } } | ||
110 | |||
111 | #define WAIT_4_SCB_CMD_RUC() { int i; \ | ||
112 | for(i=0;i<16384;i++) { \ | ||
113 | if(!p->scb->cmd_ruc) break; \ | ||
114 | DELAY_18(); \ | ||
115 | if(i == 16383) { \ | ||
116 | printk("%s: scb_cmd (ruc) timed out: %04x,%04x .. disabling i82586!!\n",dev->name,p->scb->cmd_ruc,p->scb->rus); \ | ||
117 | if(!p->reseted) { p->reseted = 1; sun3_reset586(); } } } } | ||
118 | |||
119 | #define WAIT_4_STAT_COMPL(addr) { int i; \ | ||
120 | for(i=0;i<32767;i++) { \ | ||
121 | if(swab16((addr)->cmd_status) & STAT_COMPL) break; \ | ||
122 | DELAY_16(); DELAY_16(); } } | ||
123 | |||
124 | static int sun3_82586_probe1(struct net_device *dev,int ioaddr); | ||
125 | static irqreturn_t sun3_82586_interrupt(int irq,void *dev_id,struct pt_regs *reg_ptr); | ||
126 | static int sun3_82586_open(struct net_device *dev); | ||
127 | static int sun3_82586_close(struct net_device *dev); | ||
128 | static int sun3_82586_send_packet(struct sk_buff *,struct net_device *); | ||
129 | static struct net_device_stats *sun3_82586_get_stats(struct net_device *dev); | ||
130 | static void set_multicast_list(struct net_device *dev); | ||
131 | static void sun3_82586_timeout(struct net_device *dev); | ||
132 | #if 0 | ||
133 | static void sun3_82586_dump(struct net_device *,void *); | ||
134 | #endif | ||
135 | |||
136 | /* helper-functions */ | ||
137 | static int init586(struct net_device *dev); | ||
138 | static int check586(struct net_device *dev,char *where,unsigned size); | ||
139 | static void alloc586(struct net_device *dev); | ||
140 | static void startrecv586(struct net_device *dev); | ||
141 | static void *alloc_rfa(struct net_device *dev,void *ptr); | ||
142 | static void sun3_82586_rcv_int(struct net_device *dev); | ||
143 | static void sun3_82586_xmt_int(struct net_device *dev); | ||
144 | static void sun3_82586_rnr_int(struct net_device *dev); | ||
145 | |||
146 | struct priv | ||
147 | { | ||
148 | struct net_device_stats stats; | ||
149 | unsigned long base; | ||
150 | char *memtop; | ||
151 | long int lock; | ||
152 | int reseted; | ||
153 | volatile struct rfd_struct *rfd_last,*rfd_top,*rfd_first; | ||
154 | volatile struct scp_struct *scp; /* volatile is important */ | ||
155 | volatile struct iscp_struct *iscp; /* volatile is important */ | ||
156 | volatile struct scb_struct *scb; /* volatile is important */ | ||
157 | volatile struct tbd_struct *xmit_buffs[NUM_XMIT_BUFFS]; | ||
158 | volatile struct transmit_cmd_struct *xmit_cmds[NUM_XMIT_BUFFS]; | ||
159 | #if (NUM_XMIT_BUFFS == 1) | ||
160 | volatile struct nop_cmd_struct *nop_cmds[2]; | ||
161 | #else | ||
162 | volatile struct nop_cmd_struct *nop_cmds[NUM_XMIT_BUFFS]; | ||
163 | #endif | ||
164 | volatile int nop_point,num_recv_buffs; | ||
165 | volatile char *xmit_cbuffs[NUM_XMIT_BUFFS]; | ||
166 | volatile int xmit_count,xmit_last; | ||
167 | }; | ||
168 | |||
169 | /********************************************** | ||
170 | * close device | ||
171 | */ | ||
172 | static int sun3_82586_close(struct net_device *dev) | ||
173 | { | ||
174 | free_irq(dev->irq, dev); | ||
175 | |||
176 | sun3_reset586(); /* the hard way to stop the receiver */ | ||
177 | |||
178 | netif_stop_queue(dev); | ||
179 | |||
180 | return 0; | ||
181 | } | ||
182 | |||
183 | /********************************************** | ||
184 | * open device | ||
185 | */ | ||
186 | static int sun3_82586_open(struct net_device *dev) | ||
187 | { | ||
188 | int ret; | ||
189 | |||
190 | sun3_disint(); | ||
191 | alloc586(dev); | ||
192 | init586(dev); | ||
193 | startrecv586(dev); | ||
194 | sun3_enaint(); | ||
195 | |||
196 | ret = request_irq(dev->irq, &sun3_82586_interrupt,0,dev->name,dev); | ||
197 | if (ret) | ||
198 | { | ||
199 | sun3_reset586(); | ||
200 | return ret; | ||
201 | } | ||
202 | |||
203 | netif_start_queue(dev); | ||
204 | |||
205 | return 0; /* most done by init */ | ||
206 | } | ||
207 | |||
208 | /********************************************** | ||
209 | * Check to see if there's an 82586 out there. | ||
210 | */ | ||
211 | static int check586(struct net_device *dev,char *where,unsigned size) | ||
212 | { | ||
213 | struct priv pb; | ||
214 | struct priv *p = /* (struct priv *) dev->priv*/ &pb; | ||
215 | char *iscp_addr; | ||
216 | int i; | ||
217 | |||
218 | p->base = (unsigned long) dvma_btov(0); | ||
219 | p->memtop = (char *)dvma_btov((unsigned long)where); | ||
220 | p->scp = (struct scp_struct *)(p->base + SCP_DEFAULT_ADDRESS); | ||
221 | memset((char *)p->scp,0, sizeof(struct scp_struct)); | ||
222 | for(i=0;i<sizeof(struct scp_struct);i++) /* memory was writeable? */ | ||
223 | if(((char *)p->scp)[i]) | ||
224 | return 0; | ||
225 | p->scp->sysbus = SYSBUSVAL; /* 1 = 8Bit-Bus, 0 = 16 Bit */ | ||
226 | if(p->scp->sysbus != SYSBUSVAL) | ||
227 | return 0; | ||
228 | |||
229 | iscp_addr = (char *)dvma_btov((unsigned long)where); | ||
230 | |||
231 | p->iscp = (struct iscp_struct *) iscp_addr; | ||
232 | memset((char *)p->iscp,0, sizeof(struct iscp_struct)); | ||
233 | |||
234 | p->scp->iscp = make24(p->iscp); | ||
235 | p->iscp->busy = 1; | ||
236 | |||
237 | sun3_reset586(); | ||
238 | sun3_attn586(); | ||
239 | DELAY(1); /* wait a while... */ | ||
240 | |||
241 | if(p->iscp->busy) /* i82586 clears 'busy' after successful init */ | ||
242 | return 0; | ||
243 | |||
244 | return 1; | ||
245 | } | ||
246 | |||
247 | /****************************************************************** | ||
248 | * set iscp at the right place, called by sun3_82586_probe1 and open586. | ||
249 | */ | ||
250 | static void alloc586(struct net_device *dev) | ||
251 | { | ||
252 | struct priv *p = (struct priv *) dev->priv; | ||
253 | |||
254 | sun3_reset586(); | ||
255 | DELAY(1); | ||
256 | |||
257 | p->scp = (struct scp_struct *) (p->base + SCP_DEFAULT_ADDRESS); | ||
258 | p->iscp = (struct iscp_struct *) dvma_btov(dev->mem_start); | ||
259 | p->scb = (struct scb_struct *) ((char *)p->iscp + sizeof(struct iscp_struct)); | ||
260 | |||
261 | memset((char *) p->iscp,0,sizeof(struct iscp_struct)); | ||
262 | memset((char *) p->scp ,0,sizeof(struct scp_struct)); | ||
263 | |||
264 | p->scp->iscp = make24(p->iscp); | ||
265 | p->scp->sysbus = SYSBUSVAL; | ||
266 | p->iscp->scb_offset = make16(p->scb); | ||
267 | p->iscp->scb_base = make24(dvma_btov(dev->mem_start)); | ||
268 | |||
269 | p->iscp->busy = 1; | ||
270 | sun3_reset586(); | ||
271 | sun3_attn586(); | ||
272 | |||
273 | DELAY(1); | ||
274 | |||
275 | if(p->iscp->busy) | ||
276 | printk("%s: Init-Problems (alloc).\n",dev->name); | ||
277 | |||
278 | p->reseted = 0; | ||
279 | |||
280 | memset((char *)p->scb,0,sizeof(struct scb_struct)); | ||
281 | } | ||
282 | |||
283 | struct net_device * __init sun3_82586_probe(int unit) | ||
284 | { | ||
285 | struct net_device *dev; | ||
286 | unsigned long ioaddr; | ||
287 | static int found = 0; | ||
288 | int err = -ENOMEM; | ||
289 | |||
290 | /* check that this machine has an onboard 82586 */ | ||
291 | switch(idprom->id_machtype) { | ||
292 | case SM_SUN3|SM_3_160: | ||
293 | case SM_SUN3|SM_3_260: | ||
294 | /* these machines have 82586 */ | ||
295 | break; | ||
296 | |||
297 | default: | ||
298 | return ERR_PTR(-ENODEV); | ||
299 | } | ||
300 | |||
301 | if (found) | ||
302 | return ERR_PTR(-ENODEV); | ||
303 | |||
304 | ioaddr = (unsigned long)ioremap(IE_OBIO, SUN3_82586_TOTAL_SIZE); | ||
305 | if (!ioaddr) | ||
306 | return ERR_PTR(-ENOMEM); | ||
307 | found = 1; | ||
308 | |||
309 | dev = alloc_etherdev(sizeof(struct priv)); | ||
310 | if (!dev) | ||
311 | goto out; | ||
312 | if (unit >= 0) { | ||
313 | sprintf(dev->name, "eth%d", unit); | ||
314 | netdev_boot_setup_check(dev); | ||
315 | } | ||
316 | SET_MODULE_OWNER(dev); | ||
317 | |||
318 | dev->irq = IE_IRQ; | ||
319 | dev->base_addr = ioaddr; | ||
320 | err = sun3_82586_probe1(dev, ioaddr); | ||
321 | if (err) | ||
322 | goto out1; | ||
323 | err = register_netdev(dev); | ||
324 | if (err) | ||
325 | goto out2; | ||
326 | return dev; | ||
327 | |||
328 | out2: | ||
329 | release_region(ioaddr, SUN3_82586_TOTAL_SIZE); | ||
330 | out1: | ||
331 | free_netdev(dev); | ||
332 | out: | ||
333 | iounmap((void *)ioaddr); | ||
334 | return ERR_PTR(err); | ||
335 | } | ||
336 | |||
337 | static int __init sun3_82586_probe1(struct net_device *dev,int ioaddr) | ||
338 | { | ||
339 | int i, size, retval; | ||
340 | |||
341 | if (!request_region(ioaddr, SUN3_82586_TOTAL_SIZE, DRV_NAME)) | ||
342 | return -EBUSY; | ||
343 | |||
344 | /* copy in the ethernet address from the prom */ | ||
345 | for(i = 0; i < 6 ; i++) | ||
346 | dev->dev_addr[i] = idprom->id_ethaddr[i]; | ||
347 | |||
348 | printk("%s: SUN3 Intel 82586 found at %lx, ",dev->name,dev->base_addr); | ||
349 | |||
350 | /* | ||
351 | * check (or search) IO-Memory, 32K | ||
352 | */ | ||
353 | size = 0x8000; | ||
354 | |||
355 | dev->mem_start = (unsigned long)dvma_malloc_align(0x8000, 0x1000); | ||
356 | dev->mem_end = dev->mem_start + size; | ||
357 | |||
358 | if(size != 0x2000 && size != 0x4000 && size != 0x8000) { | ||
359 | printk("\n%s: Illegal memory size %d. Allowed is 0x2000 or 0x4000 or 0x8000 bytes.\n",dev->name,size); | ||
360 | retval = -ENODEV; | ||
361 | goto out; | ||
362 | } | ||
363 | if(!check586(dev,(char *) dev->mem_start,size)) { | ||
364 | printk("?memcheck, Can't find memory at 0x%lx with size %d!\n",dev->mem_start,size); | ||
365 | retval = -ENODEV; | ||
366 | goto out; | ||
367 | } | ||
368 | |||
369 | ((struct priv *) (dev->priv))->memtop = (char *)dvma_btov(dev->mem_start); | ||
370 | ((struct priv *) (dev->priv))->base = (unsigned long) dvma_btov(0); | ||
371 | alloc586(dev); | ||
372 | |||
373 | /* set number of receive-buffs according to memsize */ | ||
374 | if(size == 0x2000) | ||
375 | ((struct priv *) dev->priv)->num_recv_buffs = NUM_RECV_BUFFS_8; | ||
376 | else if(size == 0x4000) | ||
377 | ((struct priv *) dev->priv)->num_recv_buffs = NUM_RECV_BUFFS_16; | ||
378 | else | ||
379 | ((struct priv *) dev->priv)->num_recv_buffs = NUM_RECV_BUFFS_32; | ||
380 | |||
381 | printk("Memaddr: 0x%lx, Memsize: %d, IRQ %d\n",dev->mem_start,size, dev->irq); | ||
382 | |||
383 | dev->open = sun3_82586_open; | ||
384 | dev->stop = sun3_82586_close; | ||
385 | dev->get_stats = sun3_82586_get_stats; | ||
386 | dev->tx_timeout = sun3_82586_timeout; | ||
387 | dev->watchdog_timeo = HZ/20; | ||
388 | dev->hard_start_xmit = sun3_82586_send_packet; | ||
389 | dev->set_multicast_list = set_multicast_list; | ||
390 | |||
391 | dev->if_port = 0; | ||
392 | return 0; | ||
393 | out: | ||
394 | release_region(ioaddr, SUN3_82586_TOTAL_SIZE); | ||
395 | return retval; | ||
396 | } | ||
397 | |||
398 | |||
399 | static int init586(struct net_device *dev) | ||
400 | { | ||
401 | void *ptr; | ||
402 | int i,result=0; | ||
403 | struct priv *p = (struct priv *) dev->priv; | ||
404 | volatile struct configure_cmd_struct *cfg_cmd; | ||
405 | volatile struct iasetup_cmd_struct *ias_cmd; | ||
406 | volatile struct tdr_cmd_struct *tdr_cmd; | ||
407 | volatile struct mcsetup_cmd_struct *mc_cmd; | ||
408 | struct dev_mc_list *dmi=dev->mc_list; | ||
409 | int num_addrs=dev->mc_count; | ||
410 | |||
411 | ptr = (void *) ((char *)p->scb + sizeof(struct scb_struct)); | ||
412 | |||
413 | cfg_cmd = (struct configure_cmd_struct *)ptr; /* configure-command */ | ||
414 | cfg_cmd->cmd_status = 0; | ||
415 | cfg_cmd->cmd_cmd = swab16(CMD_CONFIGURE | CMD_LAST); | ||
416 | cfg_cmd->cmd_link = 0xffff; | ||
417 | |||
418 | cfg_cmd->byte_cnt = 0x0a; /* number of cfg bytes */ | ||
419 | cfg_cmd->fifo = fifo; /* fifo-limit (8=tx:32/rx:64) */ | ||
420 | cfg_cmd->sav_bf = 0x40; /* hold or discard bad recv frames (bit 7) */ | ||
421 | cfg_cmd->adr_len = 0x2e; /* addr_len |!src_insert |pre-len |loopback */ | ||
422 | cfg_cmd->priority = 0x00; | ||
423 | cfg_cmd->ifs = 0x60; | ||
424 | cfg_cmd->time_low = 0x00; | ||
425 | cfg_cmd->time_high = 0xf2; | ||
426 | cfg_cmd->promisc = 0; | ||
427 | if(dev->flags & IFF_ALLMULTI) { | ||
428 | int len = ((char *) p->iscp - (char *) ptr - 8) / 6; | ||
429 | if(num_addrs > len) { | ||
430 | printk("%s: switching to promisc. mode\n",dev->name); | ||
431 | dev->flags|=IFF_PROMISC; | ||
432 | } | ||
433 | } | ||
434 | if(dev->flags&IFF_PROMISC) | ||
435 | { | ||
436 | cfg_cmd->promisc=1; | ||
437 | dev->flags|=IFF_PROMISC; | ||
438 | } | ||
439 | cfg_cmd->carr_coll = 0x00; | ||
440 | |||
441 | p->scb->cbl_offset = make16(cfg_cmd); | ||
442 | p->scb->cmd_ruc = 0; | ||
443 | |||
444 | p->scb->cmd_cuc = CUC_START; /* cmd.-unit start */ | ||
445 | sun3_attn586(); | ||
446 | |||
447 | WAIT_4_STAT_COMPL(cfg_cmd); | ||
448 | |||
449 | if((swab16(cfg_cmd->cmd_status) & (STAT_OK|STAT_COMPL)) != (STAT_COMPL|STAT_OK)) | ||
450 | { | ||
451 | printk("%s: configure command failed: %x\n",dev->name,swab16(cfg_cmd->cmd_status)); | ||
452 | return 1; | ||
453 | } | ||
454 | |||
455 | /* | ||
456 | * individual address setup | ||
457 | */ | ||
458 | |||
459 | ias_cmd = (struct iasetup_cmd_struct *)ptr; | ||
460 | |||
461 | ias_cmd->cmd_status = 0; | ||
462 | ias_cmd->cmd_cmd = swab16(CMD_IASETUP | CMD_LAST); | ||
463 | ias_cmd->cmd_link = 0xffff; | ||
464 | |||
465 | memcpy((char *)&ias_cmd->iaddr,(char *) dev->dev_addr,ETH_ALEN); | ||
466 | |||
467 | p->scb->cbl_offset = make16(ias_cmd); | ||
468 | |||
469 | p->scb->cmd_cuc = CUC_START; /* cmd.-unit start */ | ||
470 | sun3_attn586(); | ||
471 | |||
472 | WAIT_4_STAT_COMPL(ias_cmd); | ||
473 | |||
474 | if((swab16(ias_cmd->cmd_status) & (STAT_OK|STAT_COMPL)) != (STAT_OK|STAT_COMPL)) { | ||
475 | printk("%s (82586): individual address setup command failed: %04x\n",dev->name,swab16(ias_cmd->cmd_status)); | ||
476 | return 1; | ||
477 | } | ||
478 | |||
479 | /* | ||
480 | * TDR, wire check .. e.g. no resistor e.t.c | ||
481 | */ | ||
482 | |||
483 | tdr_cmd = (struct tdr_cmd_struct *)ptr; | ||
484 | |||
485 | tdr_cmd->cmd_status = 0; | ||
486 | tdr_cmd->cmd_cmd = swab16(CMD_TDR | CMD_LAST); | ||
487 | tdr_cmd->cmd_link = 0xffff; | ||
488 | tdr_cmd->status = 0; | ||
489 | |||
490 | p->scb->cbl_offset = make16(tdr_cmd); | ||
491 | p->scb->cmd_cuc = CUC_START; /* cmd.-unit start */ | ||
492 | sun3_attn586(); | ||
493 | |||
494 | WAIT_4_STAT_COMPL(tdr_cmd); | ||
495 | |||
496 | if(!(swab16(tdr_cmd->cmd_status) & STAT_COMPL)) | ||
497 | { | ||
498 | printk("%s: Problems while running the TDR.\n",dev->name); | ||
499 | } | ||
500 | else | ||
501 | { | ||
502 | DELAY_16(); /* wait for result */ | ||
503 | result = swab16(tdr_cmd->status); | ||
504 | |||
505 | p->scb->cmd_cuc = p->scb->cus & STAT_MASK; | ||
506 | sun3_attn586(); /* ack the interrupts */ | ||
507 | |||
508 | if(result & TDR_LNK_OK) | ||
509 | ; | ||
510 | else if(result & TDR_XCVR_PRB) | ||
511 | printk("%s: TDR: Transceiver problem. Check the cable(s)!\n",dev->name); | ||
512 | else if(result & TDR_ET_OPN) | ||
513 | printk("%s: TDR: No correct termination %d clocks away.\n",dev->name,result & TDR_TIMEMASK); | ||
514 | else if(result & TDR_ET_SRT) | ||
515 | { | ||
516 | if (result & TDR_TIMEMASK) /* time == 0 -> strange :-) */ | ||
517 | printk("%s: TDR: Detected a short circuit %d clocks away.\n",dev->name,result & TDR_TIMEMASK); | ||
518 | } | ||
519 | else | ||
520 | printk("%s: TDR: Unknown status %04x\n",dev->name,result); | ||
521 | } | ||
522 | |||
523 | /* | ||
524 | * Multicast setup | ||
525 | */ | ||
526 | if(num_addrs && !(dev->flags & IFF_PROMISC) ) | ||
527 | { | ||
528 | mc_cmd = (struct mcsetup_cmd_struct *) ptr; | ||
529 | mc_cmd->cmd_status = 0; | ||
530 | mc_cmd->cmd_cmd = swab16(CMD_MCSETUP | CMD_LAST); | ||
531 | mc_cmd->cmd_link = 0xffff; | ||
532 | mc_cmd->mc_cnt = swab16(num_addrs * 6); | ||
533 | |||
534 | for(i=0;i<num_addrs;i++,dmi=dmi->next) | ||
535 | memcpy((char *) mc_cmd->mc_list[i], dmi->dmi_addr,6); | ||
536 | |||
537 | p->scb->cbl_offset = make16(mc_cmd); | ||
538 | p->scb->cmd_cuc = CUC_START; | ||
539 | sun3_attn586(); | ||
540 | |||
541 | WAIT_4_STAT_COMPL(mc_cmd); | ||
542 | |||
543 | if( (swab16(mc_cmd->cmd_status) & (STAT_COMPL|STAT_OK)) != (STAT_COMPL|STAT_OK) ) | ||
544 | printk("%s: Can't apply multicast-address-list.\n",dev->name); | ||
545 | } | ||
546 | |||
547 | /* | ||
548 | * alloc nop/xmit-cmds | ||
549 | */ | ||
550 | #if (NUM_XMIT_BUFFS == 1) | ||
551 | for(i=0;i<2;i++) | ||
552 | { | ||
553 | p->nop_cmds[i] = (struct nop_cmd_struct *)ptr; | ||
554 | p->nop_cmds[i]->cmd_cmd = swab16(CMD_NOP); | ||
555 | p->nop_cmds[i]->cmd_status = 0; | ||
556 | p->nop_cmds[i]->cmd_link = make16((p->nop_cmds[i])); | ||
557 | ptr = (char *) ptr + sizeof(struct nop_cmd_struct); | ||
558 | } | ||
559 | #else | ||
560 | for(i=0;i<NUM_XMIT_BUFFS;i++) | ||
561 | { | ||
562 | p->nop_cmds[i] = (struct nop_cmd_struct *)ptr; | ||
563 | p->nop_cmds[i]->cmd_cmd = swab16(CMD_NOP); | ||
564 | p->nop_cmds[i]->cmd_status = 0; | ||
565 | p->nop_cmds[i]->cmd_link = make16((p->nop_cmds[i])); | ||
566 | ptr = (char *) ptr + sizeof(struct nop_cmd_struct); | ||
567 | } | ||
568 | #endif | ||
569 | |||
570 | ptr = alloc_rfa(dev,(void *)ptr); /* init receive-frame-area */ | ||
571 | |||
572 | /* | ||
573 | * alloc xmit-buffs / init xmit_cmds | ||
574 | */ | ||
575 | for(i=0;i<NUM_XMIT_BUFFS;i++) | ||
576 | { | ||
577 | p->xmit_cmds[i] = (struct transmit_cmd_struct *)ptr; /*transmit cmd/buff 0*/ | ||
578 | ptr = (char *) ptr + sizeof(struct transmit_cmd_struct); | ||
579 | p->xmit_cbuffs[i] = (char *)ptr; /* char-buffs */ | ||
580 | ptr = (char *) ptr + XMIT_BUFF_SIZE; | ||
581 | p->xmit_buffs[i] = (struct tbd_struct *)ptr; /* TBD */ | ||
582 | ptr = (char *) ptr + sizeof(struct tbd_struct); | ||
583 | if((void *)ptr > (void *)dev->mem_end) | ||
584 | { | ||
585 | printk("%s: not enough shared-mem for your configuration!\n",dev->name); | ||
586 | return 1; | ||
587 | } | ||
588 | memset((char *)(p->xmit_cmds[i]) ,0, sizeof(struct transmit_cmd_struct)); | ||
589 | memset((char *)(p->xmit_buffs[i]),0, sizeof(struct tbd_struct)); | ||
590 | p->xmit_cmds[i]->cmd_link = make16(p->nop_cmds[(i+1)%NUM_XMIT_BUFFS]); | ||
591 | p->xmit_cmds[i]->cmd_status = swab16(STAT_COMPL); | ||
592 | p->xmit_cmds[i]->cmd_cmd = swab16(CMD_XMIT | CMD_INT); | ||
593 | p->xmit_cmds[i]->tbd_offset = make16((p->xmit_buffs[i])); | ||
594 | p->xmit_buffs[i]->next = 0xffff; | ||
595 | p->xmit_buffs[i]->buffer = make24((p->xmit_cbuffs[i])); | ||
596 | } | ||
597 | |||
598 | p->xmit_count = 0; | ||
599 | p->xmit_last = 0; | ||
600 | #ifndef NO_NOPCOMMANDS | ||
601 | p->nop_point = 0; | ||
602 | #endif | ||
603 | |||
604 | /* | ||
605 | * 'start transmitter' | ||
606 | */ | ||
607 | #ifndef NO_NOPCOMMANDS | ||
608 | p->scb->cbl_offset = make16(p->nop_cmds[0]); | ||
609 | p->scb->cmd_cuc = CUC_START; | ||
610 | sun3_attn586(); | ||
611 | WAIT_4_SCB_CMD(); | ||
612 | #else | ||
613 | p->xmit_cmds[0]->cmd_link = make16(p->xmit_cmds[0]); | ||
614 | p->xmit_cmds[0]->cmd_cmd = swab16(CMD_XMIT | CMD_SUSPEND | CMD_INT); | ||
615 | #endif | ||
616 | |||
617 | /* | ||
618 | * ack. interrupts | ||
619 | */ | ||
620 | p->scb->cmd_cuc = p->scb->cus & STAT_MASK; | ||
621 | sun3_attn586(); | ||
622 | DELAY_16(); | ||
623 | |||
624 | sun3_enaint(); | ||
625 | sun3_active(); | ||
626 | |||
627 | return 0; | ||
628 | } | ||
629 | |||
630 | /****************************************************** | ||
631 | * This is a helper routine for sun3_82586_rnr_int() and init586(). | ||
632 | * It sets up the Receive Frame Area (RFA). | ||
633 | */ | ||
634 | |||
635 | static void *alloc_rfa(struct net_device *dev,void *ptr) | ||
636 | { | ||
637 | volatile struct rfd_struct *rfd = (struct rfd_struct *)ptr; | ||
638 | volatile struct rbd_struct *rbd; | ||
639 | int i; | ||
640 | struct priv *p = (struct priv *) dev->priv; | ||
641 | |||
642 | memset((char *) rfd,0,sizeof(struct rfd_struct)*(p->num_recv_buffs+rfdadd)); | ||
643 | p->rfd_first = rfd; | ||
644 | |||
645 | for(i = 0; i < (p->num_recv_buffs+rfdadd); i++) { | ||
646 | rfd[i].next = make16(rfd + (i+1) % (p->num_recv_buffs+rfdadd) ); | ||
647 | rfd[i].rbd_offset = 0xffff; | ||
648 | } | ||
649 | rfd[p->num_recv_buffs-1+rfdadd].last = RFD_SUSP; /* RU suspend */ | ||
650 | |||
651 | ptr = (void *) (rfd + (p->num_recv_buffs + rfdadd) ); | ||
652 | |||
653 | rbd = (struct rbd_struct *) ptr; | ||
654 | ptr = (void *) (rbd + p->num_recv_buffs); | ||
655 | |||
656 | /* clr descriptors */ | ||
657 | memset((char *) rbd,0,sizeof(struct rbd_struct)*(p->num_recv_buffs)); | ||
658 | |||
659 | for(i=0;i<p->num_recv_buffs;i++) | ||
660 | { | ||
661 | rbd[i].next = make16((rbd + (i+1) % p->num_recv_buffs)); | ||
662 | rbd[i].size = swab16(RECV_BUFF_SIZE); | ||
663 | rbd[i].buffer = make24(ptr); | ||
664 | ptr = (char *) ptr + RECV_BUFF_SIZE; | ||
665 | } | ||
666 | |||
667 | p->rfd_top = p->rfd_first; | ||
668 | p->rfd_last = p->rfd_first + (p->num_recv_buffs - 1 + rfdadd); | ||
669 | |||
670 | p->scb->rfa_offset = make16(p->rfd_first); | ||
671 | p->rfd_first->rbd_offset = make16(rbd); | ||
672 | |||
673 | return ptr; | ||
674 | } | ||
675 | |||
676 | |||
677 | /************************************************** | ||
678 | * Interrupt Handler ... | ||
679 | */ | ||
680 | |||
681 | static irqreturn_t sun3_82586_interrupt(int irq,void *dev_id,struct pt_regs *reg_ptr) | ||
682 | { | ||
683 | struct net_device *dev = dev_id; | ||
684 | unsigned short stat; | ||
685 | int cnt=0; | ||
686 | struct priv *p; | ||
687 | |||
688 | if (!dev) { | ||
689 | printk ("sun3_82586-interrupt: irq %d for unknown device.\n",irq); | ||
690 | return IRQ_NONE; | ||
691 | } | ||
692 | p = (struct priv *) dev->priv; | ||
693 | |||
694 | if(debuglevel > 1) | ||
695 | printk("I"); | ||
696 | |||
697 | WAIT_4_SCB_CMD(); /* wait for last command */ | ||
698 | |||
699 | while((stat=p->scb->cus & STAT_MASK)) | ||
700 | { | ||
701 | p->scb->cmd_cuc = stat; | ||
702 | sun3_attn586(); | ||
703 | |||
704 | if(stat & STAT_FR) /* received a frame */ | ||
705 | sun3_82586_rcv_int(dev); | ||
706 | |||
707 | if(stat & STAT_RNR) /* RU went 'not ready' */ | ||
708 | { | ||
709 | printk("(R)"); | ||
710 | if(p->scb->rus & RU_SUSPEND) /* special case: RU_SUSPEND */ | ||
711 | { | ||
712 | WAIT_4_SCB_CMD(); | ||
713 | p->scb->cmd_ruc = RUC_RESUME; | ||
714 | sun3_attn586(); | ||
715 | WAIT_4_SCB_CMD_RUC(); | ||
716 | } | ||
717 | else | ||
718 | { | ||
719 | printk("%s: Receiver-Unit went 'NOT READY': %04x/%02x.\n",dev->name,(int) stat,(int) p->scb->rus); | ||
720 | sun3_82586_rnr_int(dev); | ||
721 | } | ||
722 | } | ||
723 | |||
724 | if(stat & STAT_CX) /* command with I-bit set complete */ | ||
725 | sun3_82586_xmt_int(dev); | ||
726 | |||
727 | #ifndef NO_NOPCOMMANDS | ||
728 | if(stat & STAT_CNA) /* CU went 'not ready' */ | ||
729 | { | ||
730 | if(netif_running(dev)) | ||
731 | printk("%s: oops! CU has left active state. stat: %04x/%02x.\n",dev->name,(int) stat,(int) p->scb->cus); | ||
732 | } | ||
733 | #endif | ||
734 | |||
735 | if(debuglevel > 1) | ||
736 | printk("%d",cnt++); | ||
737 | |||
738 | WAIT_4_SCB_CMD(); /* wait for ack. (sun3_82586_xmt_int can be faster than ack!!) */ | ||
739 | if(p->scb->cmd_cuc) /* timed out? */ | ||
740 | { | ||
741 | printk("%s: Acknowledge timed out.\n",dev->name); | ||
742 | sun3_disint(); | ||
743 | break; | ||
744 | } | ||
745 | } | ||
746 | |||
747 | if(debuglevel > 1) | ||
748 | printk("i"); | ||
749 | return IRQ_HANDLED; | ||
750 | } | ||
751 | |||
752 | /******************************************************* | ||
753 | * receive-interrupt | ||
754 | */ | ||
755 | |||
756 | static void sun3_82586_rcv_int(struct net_device *dev) | ||
757 | { | ||
758 | int status,cnt=0; | ||
759 | unsigned short totlen; | ||
760 | struct sk_buff *skb; | ||
761 | struct rbd_struct *rbd; | ||
762 | struct priv *p = (struct priv *) dev->priv; | ||
763 | |||
764 | if(debuglevel > 0) | ||
765 | printk("R"); | ||
766 | |||
767 | for(;(status = p->rfd_top->stat_high) & RFD_COMPL;) | ||
768 | { | ||
769 | rbd = (struct rbd_struct *) make32(p->rfd_top->rbd_offset); | ||
770 | |||
771 | if(status & RFD_OK) /* frame received without error? */ | ||
772 | { | ||
773 | if( (totlen = swab16(rbd->status)) & RBD_LAST) /* the first and the last buffer? */ | ||
774 | { | ||
775 | totlen &= RBD_MASK; /* length of this frame */ | ||
776 | rbd->status = 0; | ||
777 | skb = (struct sk_buff *) dev_alloc_skb(totlen+2); | ||
778 | if(skb != NULL) | ||
779 | { | ||
780 | skb->dev = dev; | ||
781 | skb_reserve(skb,2); | ||
782 | skb_put(skb,totlen); | ||
783 | eth_copy_and_sum(skb,(char *) p->base+swab32((unsigned long) rbd->buffer),totlen,0); | ||
784 | skb->protocol=eth_type_trans(skb,dev); | ||
785 | netif_rx(skb); | ||
786 | p->stats.rx_packets++; | ||
787 | } | ||
788 | else | ||
789 | p->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 | p->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 | p->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 = (struct priv *) dev->priv; | ||
882 | |||
883 | p->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,(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 = (struct priv *) dev->priv; | ||
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 | p->stats.tx_packets++; | ||
917 | p->stats.collisions += (status & TCMD_MAXCOLLMASK); | ||
918 | } | ||
919 | else | ||
920 | { | ||
921 | p->stats.tx_errors++; | ||
922 | if(status & TCMD_LATECOLL) { | ||
923 | printk("%s: late collision detected.\n",dev->name); | ||
924 | p->stats.collisions++; | ||
925 | } | ||
926 | else if(status & TCMD_NOCARRIER) { | ||
927 | p->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 | p->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 | p->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 = (struct priv *) dev->priv; | ||
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) | ||
966 | { | ||
967 | struct priv *p = (struct priv *) dev->priv; | ||
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 | dev->trans_start = jiffies; | ||
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 | dev->trans_start = jiffies; | ||
997 | } | ||
998 | |||
999 | /****************************************************** | ||
1000 | * send frame | ||
1001 | */ | ||
1002 | |||
1003 | static int sun3_82586_send_packet(struct sk_buff *skb, struct net_device *dev) | ||
1004 | { | ||
1005 | int len,i; | ||
1006 | #ifndef NO_NOPCOMMANDS | ||
1007 | int next_nop; | ||
1008 | #endif | ||
1009 | struct priv *p = (struct priv *) dev->priv; | ||
1010 | |||
1011 | if(skb->len > XMIT_BUFF_SIZE) | ||
1012 | { | ||
1013 | printk("%s: Sorry, max. framelength is %d bytes. The length of your frame is %d bytes.\n",dev->name,XMIT_BUFF_SIZE,skb->len); | ||
1014 | return 0; | ||
1015 | } | ||
1016 | |||
1017 | netif_stop_queue(dev); | ||
1018 | |||
1019 | #if(NUM_XMIT_BUFFS > 1) | ||
1020 | if(test_and_set_bit(0,(void *) &p->lock)) { | ||
1021 | printk("%s: Queue was locked\n",dev->name); | ||
1022 | return 1; | ||
1023 | } | ||
1024 | else | ||
1025 | #endif | ||
1026 | { | ||
1027 | len = skb->len; | ||
1028 | if (len < ETH_ZLEN) { | ||
1029 | memset((char *)p->xmit_cbuffs[p->xmit_count], 0, ETH_ZLEN); | ||
1030 | len = ETH_ZLEN; | ||
1031 | } | ||
1032 | memcpy((char *)p->xmit_cbuffs[p->xmit_count],(char *)(skb->data),skb->len); | ||
1033 | |||
1034 | #if (NUM_XMIT_BUFFS == 1) | ||
1035 | # ifdef NO_NOPCOMMANDS | ||
1036 | |||
1037 | #ifdef DEBUG | ||
1038 | if(p->scb->cus & CU_ACTIVE) | ||
1039 | { | ||
1040 | printk("%s: Hmmm .. CU is still running and we wanna send a new packet.\n",dev->name); | ||
1041 | printk("%s: stat: %04x %04x\n",dev->name,p->scb->cus,swab16(p->xmit_cmds[0]->cmd_status)); | ||
1042 | } | ||
1043 | #endif | ||
1044 | |||
1045 | p->xmit_buffs[0]->size = swab16(TBD_LAST | len); | ||
1046 | for(i=0;i<16;i++) | ||
1047 | { | ||
1048 | p->xmit_cmds[0]->cmd_status = 0; | ||
1049 | WAIT_4_SCB_CMD(); | ||
1050 | if( (p->scb->cus & CU_STATUS) == CU_SUSPEND) | ||
1051 | p->scb->cmd_cuc = CUC_RESUME; | ||
1052 | else | ||
1053 | { | ||
1054 | p->scb->cbl_offset = make16(p->xmit_cmds[0]); | ||
1055 | p->scb->cmd_cuc = CUC_START; | ||
1056 | } | ||
1057 | |||
1058 | sun3_attn586(); | ||
1059 | dev->trans_start = jiffies; | ||
1060 | if(!i) | ||
1061 | dev_kfree_skb(skb); | ||
1062 | WAIT_4_SCB_CMD(); | ||
1063 | if( (p->scb->cus & CU_ACTIVE)) /* test it, because CU sometimes doesn't start immediately */ | ||
1064 | break; | ||
1065 | if(p->xmit_cmds[0]->cmd_status) | ||
1066 | break; | ||
1067 | if(i==15) | ||
1068 | printk("%s: Can't start transmit-command.\n",dev->name); | ||
1069 | } | ||
1070 | # else | ||
1071 | next_nop = (p->nop_point + 1) & 0x1; | ||
1072 | p->xmit_buffs[0]->size = swab16(TBD_LAST | len); | ||
1073 | |||
1074 | p->xmit_cmds[0]->cmd_link = p->nop_cmds[next_nop]->cmd_link | ||
1075 | = make16((p->nop_cmds[next_nop])); | ||
1076 | p->xmit_cmds[0]->cmd_status = p->nop_cmds[next_nop]->cmd_status = 0; | ||
1077 | |||
1078 | p->nop_cmds[p->nop_point]->cmd_link = make16((p->xmit_cmds[0])); | ||
1079 | dev->trans_start = jiffies; | ||
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 | dev->trans_start = jiffies; | ||
1095 | p->xmit_count = next_nop; | ||
1096 | |||
1097 | { | ||
1098 | unsigned long flags; | ||
1099 | local_irq_save(flags); | ||
1100 | if(p->xmit_count != p->xmit_last) | ||
1101 | netif_wake_queue(dev); | ||
1102 | p->lock = 0; | ||
1103 | local_irq_restore(flags); | ||
1104 | } | ||
1105 | dev_kfree_skb(skb); | ||
1106 | #endif | ||
1107 | } | ||
1108 | return 0; | ||
1109 | } | ||
1110 | |||
1111 | /******************************************* | ||
1112 | * Someone wanna have the statistics | ||
1113 | */ | ||
1114 | |||
1115 | static struct net_device_stats *sun3_82586_get_stats(struct net_device *dev) | ||
1116 | { | ||
1117 | struct priv *p = (struct priv *) dev->priv; | ||
1118 | unsigned short crc,aln,rsc,ovrn; | ||
1119 | |||
1120 | crc = swab16(p->scb->crc_errs); /* get error-statistic from the ni82586 */ | ||
1121 | p->scb->crc_errs = 0; | ||
1122 | aln = swab16(p->scb->aln_errs); | ||
1123 | p->scb->aln_errs = 0; | ||
1124 | rsc = swab16(p->scb->rsc_errs); | ||
1125 | p->scb->rsc_errs = 0; | ||
1126 | ovrn = swab16(p->scb->ovrn_errs); | ||
1127 | p->scb->ovrn_errs = 0; | ||
1128 | |||
1129 | p->stats.rx_crc_errors += crc; | ||
1130 | p->stats.rx_fifo_errors += ovrn; | ||
1131 | p->stats.rx_frame_errors += aln; | ||
1132 | p->stats.rx_dropped += rsc; | ||
1133 | |||
1134 | return &p->stats; | ||
1135 | } | ||
1136 | |||
1137 | /******************************************************** | ||
1138 | * Set MC list .. | ||
1139 | */ | ||
1140 | |||
1141 | static void set_multicast_list(struct net_device *dev) | ||
1142 | { | ||
1143 | netif_stop_queue(dev); | ||
1144 | sun3_disint(); | ||
1145 | alloc586(dev); | ||
1146 | init586(dev); | ||
1147 | startrecv586(dev); | ||
1148 | sun3_enaint(); | ||
1149 | netif_wake_queue(dev); | ||
1150 | } | ||
1151 | |||
1152 | #ifdef MODULE | ||
1153 | #error This code is not currently supported as a module | ||
1154 | static struct net_device *dev_sun3_82586; | ||
1155 | |||
1156 | int init_module(void) | ||
1157 | { | ||
1158 | dev_sun3_82586 = sun3_82586_probe(-1); | ||
1159 | if (IS_ERR(dev_sun3_82586)) | ||
1160 | return PTR_ERR(dev_sun3_82586); | ||
1161 | return 0; | ||
1162 | } | ||
1163 | |||
1164 | void cleanup_module(void) | ||
1165 | { | ||
1166 | unsigned long ioaddr = dev_sun3_82586->base_addr; | ||
1167 | unregister_netdev(dev_sun3_82586); | ||
1168 | release_region(ioaddr, SUN3_82586_TOTAL_SIZE); | ||
1169 | iounmap((void *)ioaddr); | ||
1170 | free_netdev(dev_sun3_82586); | ||
1171 | } | ||
1172 | #endif /* MODULE */ | ||
1173 | |||
1174 | #if 0 | ||
1175 | /* | ||
1176 | * DUMP .. we expect a not running CMD unit and enough space | ||
1177 | */ | ||
1178 | void sun3_82586_dump(struct net_device *dev,void *ptr) | ||
1179 | { | ||
1180 | struct priv *p = (struct priv *) dev->priv; | ||
1181 | struct dump_cmd_struct *dump_cmd = (struct dump_cmd_struct *) ptr; | ||
1182 | int i; | ||
1183 | |||
1184 | p->scb->cmd_cuc = CUC_ABORT; | ||
1185 | sun3_attn586(); | ||
1186 | WAIT_4_SCB_CMD(); | ||
1187 | WAIT_4_SCB_CMD_RUC(); | ||
1188 | |||
1189 | dump_cmd->cmd_status = 0; | ||
1190 | dump_cmd->cmd_cmd = CMD_DUMP | CMD_LAST; | ||
1191 | dump_cmd->dump_offset = make16((dump_cmd + 1)); | ||
1192 | dump_cmd->cmd_link = 0xffff; | ||
1193 | |||
1194 | p->scb->cbl_offset = make16(dump_cmd); | ||
1195 | p->scb->cmd_cuc = CUC_START; | ||
1196 | sun3_attn586(); | ||
1197 | WAIT_4_STAT_COMPL(dump_cmd); | ||
1198 | |||
1199 | if( (dump_cmd->cmd_status & (STAT_COMPL|STAT_OK)) != (STAT_COMPL|STAT_OK) ) | ||
1200 | printk("%s: Can't get dump information.\n",dev->name); | ||
1201 | |||
1202 | for(i=0;i<170;i++) { | ||
1203 | printk("%02x ",(int) ((unsigned char *) (dump_cmd + 1))[i]); | ||
1204 | if(i % 24 == 23) | ||
1205 | printk("\n"); | ||
1206 | } | ||
1207 | printk("\n"); | ||
1208 | } | ||
1209 | #endif | ||
1210 | |||
1211 | MODULE_LICENSE("GPL"); | ||