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 | 31 | #include <linux/kernel.h> |
e179d78e | 32 | #include <linux/module.h> |
1da177e4 LT |
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); | |
648c361a Y |
125 | static netdev_tx_t sun3_82586_send_packet(struct sk_buff *, |
126 | struct net_device *); | |
1da177e4 LT |
127 | static struct net_device_stats *sun3_82586_get_stats(struct net_device *dev); |
128 | static void set_multicast_list(struct net_device *dev); | |
0290bd29 | 129 | static void sun3_82586_timeout(struct net_device *dev, unsigned int txqueue); |
1da177e4 LT |
130 | #if 0 |
131 | static void sun3_82586_dump(struct net_device *,void *); | |
132 | #endif | |
133 | ||
134 | /* helper-functions */ | |
135 | static int init586(struct net_device *dev); | |
136 | static int check586(struct net_device *dev,char *where,unsigned size); | |
137 | static void alloc586(struct net_device *dev); | |
138 | static void startrecv586(struct net_device *dev); | |
139 | static void *alloc_rfa(struct net_device *dev,void *ptr); | |
140 | static void sun3_82586_rcv_int(struct net_device *dev); | |
141 | static void sun3_82586_xmt_int(struct net_device *dev); | |
142 | static void sun3_82586_rnr_int(struct net_device *dev); | |
143 | ||
144 | struct priv | |
145 | { | |
1da177e4 LT |
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 | ||
e179d78e | 280 | static int __init sun3_82586_probe(void) |
1da177e4 LT |
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: | |
e179d78e | 295 | return -ENODEV; |
1da177e4 LT |
296 | } |
297 | ||
298 | if (found) | |
e179d78e | 299 | return -ENODEV; |
6aa20a22 | 300 | |
1da177e4 LT |
301 | ioaddr = (unsigned long)ioremap(IE_OBIO, SUN3_82586_TOTAL_SIZE); |
302 | if (!ioaddr) | |
e179d78e | 303 | return -ENOMEM; |
1da177e4 | 304 | found = 1; |
6aa20a22 | 305 | |
1da177e4 LT |
306 | dev = alloc_etherdev(sizeof(struct priv)); |
307 | if (!dev) | |
308 | goto out; | |
1da177e4 LT |
309 | dev->irq = IE_IRQ; |
310 | dev->base_addr = ioaddr; | |
311 | err = sun3_82586_probe1(dev, ioaddr); | |
312 | if (err) | |
313 | goto out1; | |
314 | err = register_netdev(dev); | |
315 | if (err) | |
316 | goto out2; | |
66abf5fb | 317 | return 0; |
1da177e4 LT |
318 | |
319 | out2: | |
320 | release_region(ioaddr, SUN3_82586_TOTAL_SIZE); | |
321 | out1: | |
322 | free_netdev(dev); | |
323 | out: | |
437111ca | 324 | iounmap((void __iomem *)ioaddr); |
e179d78e | 325 | return err; |
1da177e4 | 326 | } |
e179d78e | 327 | module_init(sun3_82586_probe); |
1da177e4 | 328 | |
7e4fdcb9 AB |
329 | static const struct net_device_ops sun3_82586_netdev_ops = { |
330 | .ndo_open = sun3_82586_open, | |
331 | .ndo_stop = sun3_82586_close, | |
332 | .ndo_start_xmit = sun3_82586_send_packet, | |
afc4b13d | 333 | .ndo_set_rx_mode = set_multicast_list, |
7e4fdcb9 AB |
334 | .ndo_tx_timeout = sun3_82586_timeout, |
335 | .ndo_get_stats = sun3_82586_get_stats, | |
336 | .ndo_validate_addr = eth_validate_addr, | |
337 | .ndo_set_mac_address = eth_mac_addr, | |
7e4fdcb9 AB |
338 | }; |
339 | ||
1da177e4 LT |
340 | static int __init sun3_82586_probe1(struct net_device *dev,int ioaddr) |
341 | { | |
342 | int i, size, retval; | |
343 | ||
344 | if (!request_region(ioaddr, SUN3_82586_TOTAL_SIZE, DRV_NAME)) | |
345 | return -EBUSY; | |
346 | ||
347 | /* copy in the ethernet address from the prom */ | |
348 | for(i = 0; i < 6 ; i++) | |
349 | dev->dev_addr[i] = idprom->id_ethaddr[i]; | |
350 | ||
351 | printk("%s: SUN3 Intel 82586 found at %lx, ",dev->name,dev->base_addr); | |
352 | ||
353 | /* | |
354 | * check (or search) IO-Memory, 32K | |
355 | */ | |
356 | size = 0x8000; | |
357 | ||
358 | dev->mem_start = (unsigned long)dvma_malloc_align(0x8000, 0x1000); | |
359 | dev->mem_end = dev->mem_start + size; | |
360 | ||
361 | if(size != 0x2000 && size != 0x4000 && size != 0x8000) { | |
362 | printk("\n%s: Illegal memory size %d. Allowed is 0x2000 or 0x4000 or 0x8000 bytes.\n",dev->name,size); | |
363 | retval = -ENODEV; | |
364 | goto out; | |
365 | } | |
366 | if(!check586(dev,(char *) dev->mem_start,size)) { | |
367 | printk("?memcheck, Can't find memory at 0x%lx with size %d!\n",dev->mem_start,size); | |
368 | retval = -ENODEV; | |
369 | goto out; | |
370 | } | |
371 | ||
8f15ea42 WC |
372 | ((struct priv *)netdev_priv(dev))->memtop = |
373 | (char *)dvma_btov(dev->mem_start); | |
374 | ((struct priv *)netdev_priv(dev))->base = (unsigned long) dvma_btov(0); | |
1da177e4 LT |
375 | alloc586(dev); |
376 | ||
377 | /* set number of receive-buffs according to memsize */ | |
378 | if(size == 0x2000) | |
8f15ea42 WC |
379 | ((struct priv *)netdev_priv(dev))->num_recv_buffs = |
380 | NUM_RECV_BUFFS_8; | |
1da177e4 | 381 | else if(size == 0x4000) |
8f15ea42 WC |
382 | ((struct priv *)netdev_priv(dev))->num_recv_buffs = |
383 | NUM_RECV_BUFFS_16; | |
1da177e4 | 384 | else |
8f15ea42 WC |
385 | ((struct priv *)netdev_priv(dev))->num_recv_buffs = |
386 | NUM_RECV_BUFFS_32; | |
1da177e4 LT |
387 | |
388 | printk("Memaddr: 0x%lx, Memsize: %d, IRQ %d\n",dev->mem_start,size, dev->irq); | |
6aa20a22 | 389 | |
7e4fdcb9 | 390 | dev->netdev_ops = &sun3_82586_netdev_ops; |
1da177e4 | 391 | dev->watchdog_timeo = HZ/20; |
1da177e4 LT |
392 | |
393 | dev->if_port = 0; | |
394 | return 0; | |
395 | out: | |
396 | release_region(ioaddr, SUN3_82586_TOTAL_SIZE); | |
397 | return retval; | |
398 | } | |
399 | ||
400 | ||
401 | static int init586(struct net_device *dev) | |
402 | { | |
403 | void *ptr; | |
404 | int i,result=0; | |
8f15ea42 | 405 | struct priv *p = netdev_priv(dev); |
1da177e4 LT |
406 | volatile struct configure_cmd_struct *cfg_cmd; |
407 | volatile struct iasetup_cmd_struct *ias_cmd; | |
408 | volatile struct tdr_cmd_struct *tdr_cmd; | |
409 | volatile struct mcsetup_cmd_struct *mc_cmd; | |
22bedad3 | 410 | struct netdev_hw_addr *ha; |
4cd24eaf | 411 | int num_addrs=netdev_mc_count(dev); |
1da177e4 LT |
412 | |
413 | ptr = (void *) ((char *)p->scb + sizeof(struct scb_struct)); | |
414 | ||
415 | cfg_cmd = (struct configure_cmd_struct *)ptr; /* configure-command */ | |
416 | cfg_cmd->cmd_status = 0; | |
417 | cfg_cmd->cmd_cmd = swab16(CMD_CONFIGURE | CMD_LAST); | |
418 | cfg_cmd->cmd_link = 0xffff; | |
419 | ||
420 | cfg_cmd->byte_cnt = 0x0a; /* number of cfg bytes */ | |
421 | cfg_cmd->fifo = fifo; /* fifo-limit (8=tx:32/rx:64) */ | |
422 | cfg_cmd->sav_bf = 0x40; /* hold or discard bad recv frames (bit 7) */ | |
423 | cfg_cmd->adr_len = 0x2e; /* addr_len |!src_insert |pre-len |loopback */ | |
424 | cfg_cmd->priority = 0x00; | |
425 | cfg_cmd->ifs = 0x60; | |
426 | cfg_cmd->time_low = 0x00; | |
427 | cfg_cmd->time_high = 0xf2; | |
428 | cfg_cmd->promisc = 0; | |
429 | if(dev->flags & IFF_ALLMULTI) { | |
430 | int len = ((char *) p->iscp - (char *) ptr - 8) / 6; | |
431 | if(num_addrs > len) { | |
432 | printk("%s: switching to promisc. mode\n",dev->name); | |
c16d1185 | 433 | cfg_cmd->promisc = 1; |
1da177e4 LT |
434 | } |
435 | } | |
436 | if(dev->flags&IFF_PROMISC) | |
c16d1185 | 437 | cfg_cmd->promisc = 1; |
1da177e4 LT |
438 | cfg_cmd->carr_coll = 0x00; |
439 | ||
440 | p->scb->cbl_offset = make16(cfg_cmd); | |
441 | p->scb->cmd_ruc = 0; | |
442 | ||
443 | p->scb->cmd_cuc = CUC_START; /* cmd.-unit start */ | |
444 | sun3_attn586(); | |
445 | ||
446 | WAIT_4_STAT_COMPL(cfg_cmd); | |
447 | ||
448 | if((swab16(cfg_cmd->cmd_status) & (STAT_OK|STAT_COMPL)) != (STAT_COMPL|STAT_OK)) | |
449 | { | |
450 | printk("%s: configure command failed: %x\n",dev->name,swab16(cfg_cmd->cmd_status)); | |
451 | return 1; | |
452 | } | |
453 | ||
454 | /* | |
455 | * individual address setup | |
456 | */ | |
457 | ||
458 | ias_cmd = (struct iasetup_cmd_struct *)ptr; | |
459 | ||
460 | ias_cmd->cmd_status = 0; | |
461 | ias_cmd->cmd_cmd = swab16(CMD_IASETUP | CMD_LAST); | |
462 | ias_cmd->cmd_link = 0xffff; | |
463 | ||
76660757 | 464 | memcpy((char *)&ias_cmd->iaddr,(const char *) dev->dev_addr,ETH_ALEN); |
1da177e4 LT |
465 | |
466 | p->scb->cbl_offset = make16(ias_cmd); | |
467 | ||
468 | p->scb->cmd_cuc = CUC_START; /* cmd.-unit start */ | |
469 | sun3_attn586(); | |
470 | ||
471 | WAIT_4_STAT_COMPL(ias_cmd); | |
472 | ||
473 | if((swab16(ias_cmd->cmd_status) & (STAT_OK|STAT_COMPL)) != (STAT_OK|STAT_COMPL)) { | |
474 | printk("%s (82586): individual address setup command failed: %04x\n",dev->name,swab16(ias_cmd->cmd_status)); | |
475 | return 1; | |
476 | } | |
477 | ||
478 | /* | |
479 | * TDR, wire check .. e.g. no resistor e.t.c | |
480 | */ | |
6aa20a22 | 481 | |
1da177e4 LT |
482 | tdr_cmd = (struct tdr_cmd_struct *)ptr; |
483 | ||
484 | tdr_cmd->cmd_status = 0; | |
485 | tdr_cmd->cmd_cmd = swab16(CMD_TDR | CMD_LAST); | |
486 | tdr_cmd->cmd_link = 0xffff; | |
487 | tdr_cmd->status = 0; | |
488 | ||
489 | p->scb->cbl_offset = make16(tdr_cmd); | |
490 | p->scb->cmd_cuc = CUC_START; /* cmd.-unit start */ | |
491 | sun3_attn586(); | |
492 | ||
493 | WAIT_4_STAT_COMPL(tdr_cmd); | |
494 | ||
495 | if(!(swab16(tdr_cmd->cmd_status) & STAT_COMPL)) | |
496 | { | |
497 | printk("%s: Problems while running the TDR.\n",dev->name); | |
498 | } | |
499 | else | |
500 | { | |
501 | DELAY_16(); /* wait for result */ | |
502 | result = swab16(tdr_cmd->status); | |
503 | ||
504 | p->scb->cmd_cuc = p->scb->cus & STAT_MASK; | |
505 | sun3_attn586(); /* ack the interrupts */ | |
506 | ||
507 | if(result & TDR_LNK_OK) | |
508 | ; | |
509 | else if(result & TDR_XCVR_PRB) | |
510 | printk("%s: TDR: Transceiver problem. Check the cable(s)!\n",dev->name); | |
511 | else if(result & TDR_ET_OPN) | |
512 | printk("%s: TDR: No correct termination %d clocks away.\n",dev->name,result & TDR_TIMEMASK); | |
513 | else if(result & TDR_ET_SRT) | |
514 | { | |
515 | if (result & TDR_TIMEMASK) /* time == 0 -> strange :-) */ | |
516 | printk("%s: TDR: Detected a short circuit %d clocks away.\n",dev->name,result & TDR_TIMEMASK); | |
517 | } | |
518 | else | |
519 | printk("%s: TDR: Unknown status %04x\n",dev->name,result); | |
520 | } | |
521 | ||
522 | /* | |
523 | * Multicast setup | |
524 | */ | |
525 | if(num_addrs && !(dev->flags & IFF_PROMISC) ) | |
526 | { | |
527 | mc_cmd = (struct mcsetup_cmd_struct *) ptr; | |
528 | mc_cmd->cmd_status = 0; | |
529 | mc_cmd->cmd_cmd = swab16(CMD_MCSETUP | CMD_LAST); | |
530 | mc_cmd->cmd_link = 0xffff; | |
531 | mc_cmd->mc_cnt = swab16(num_addrs * 6); | |
532 | ||
5508590c | 533 | i = 0; |
22bedad3 | 534 | netdev_for_each_mc_addr(ha, dev) |
5508590c | 535 | memcpy((char *) mc_cmd->mc_list[i++], |
22bedad3 | 536 | ha->addr, ETH_ALEN); |
1da177e4 LT |
537 | |
538 | p->scb->cbl_offset = make16(mc_cmd); | |
539 | p->scb->cmd_cuc = CUC_START; | |
540 | sun3_attn586(); | |
541 | ||
542 | WAIT_4_STAT_COMPL(mc_cmd); | |
543 | ||
544 | if( (swab16(mc_cmd->cmd_status) & (STAT_COMPL|STAT_OK)) != (STAT_COMPL|STAT_OK) ) | |
545 | printk("%s: Can't apply multicast-address-list.\n",dev->name); | |
546 | } | |
547 | ||
548 | /* | |
549 | * alloc nop/xmit-cmds | |
550 | */ | |
551 | #if (NUM_XMIT_BUFFS == 1) | |
552 | for(i=0;i<2;i++) | |
553 | { | |
554 | p->nop_cmds[i] = (struct nop_cmd_struct *)ptr; | |
555 | p->nop_cmds[i]->cmd_cmd = swab16(CMD_NOP); | |
556 | p->nop_cmds[i]->cmd_status = 0; | |
557 | p->nop_cmds[i]->cmd_link = make16((p->nop_cmds[i])); | |
558 | ptr = (char *) ptr + sizeof(struct nop_cmd_struct); | |
559 | } | |
560 | #else | |
561 | for(i=0;i<NUM_XMIT_BUFFS;i++) | |
562 | { | |
563 | p->nop_cmds[i] = (struct nop_cmd_struct *)ptr; | |
564 | p->nop_cmds[i]->cmd_cmd = swab16(CMD_NOP); | |
565 | p->nop_cmds[i]->cmd_status = 0; | |
566 | p->nop_cmds[i]->cmd_link = make16((p->nop_cmds[i])); | |
567 | ptr = (char *) ptr + sizeof(struct nop_cmd_struct); | |
568 | } | |
569 | #endif | |
570 | ||
64699336 | 571 | ptr = alloc_rfa(dev,ptr); /* init receive-frame-area */ |
1da177e4 LT |
572 | |
573 | /* | |
574 | * alloc xmit-buffs / init xmit_cmds | |
575 | */ | |
576 | for(i=0;i<NUM_XMIT_BUFFS;i++) | |
577 | { | |
578 | p->xmit_cmds[i] = (struct transmit_cmd_struct *)ptr; /*transmit cmd/buff 0*/ | |
579 | ptr = (char *) ptr + sizeof(struct transmit_cmd_struct); | |
580 | p->xmit_cbuffs[i] = (char *)ptr; /* char-buffs */ | |
581 | ptr = (char *) ptr + XMIT_BUFF_SIZE; | |
582 | p->xmit_buffs[i] = (struct tbd_struct *)ptr; /* TBD */ | |
583 | ptr = (char *) ptr + sizeof(struct tbd_struct); | |
64699336 | 584 | if(ptr > (void *)dev->mem_end) |
1da177e4 LT |
585 | { |
586 | printk("%s: not enough shared-mem for your configuration!\n",dev->name); | |
587 | return 1; | |
588 | } | |
589 | memset((char *)(p->xmit_cmds[i]) ,0, sizeof(struct transmit_cmd_struct)); | |
590 | memset((char *)(p->xmit_buffs[i]),0, sizeof(struct tbd_struct)); | |
591 | p->xmit_cmds[i]->cmd_link = make16(p->nop_cmds[(i+1)%NUM_XMIT_BUFFS]); | |
592 | p->xmit_cmds[i]->cmd_status = swab16(STAT_COMPL); | |
593 | p->xmit_cmds[i]->cmd_cmd = swab16(CMD_XMIT | CMD_INT); | |
594 | p->xmit_cmds[i]->tbd_offset = make16((p->xmit_buffs[i])); | |
595 | p->xmit_buffs[i]->next = 0xffff; | |
596 | p->xmit_buffs[i]->buffer = make24((p->xmit_cbuffs[i])); | |
597 | } | |
598 | ||
599 | p->xmit_count = 0; | |
600 | p->xmit_last = 0; | |
601 | #ifndef NO_NOPCOMMANDS | |
602 | p->nop_point = 0; | |
603 | #endif | |
604 | ||
605 | /* | |
606 | * 'start transmitter' | |
607 | */ | |
608 | #ifndef NO_NOPCOMMANDS | |
609 | p->scb->cbl_offset = make16(p->nop_cmds[0]); | |
610 | p->scb->cmd_cuc = CUC_START; | |
611 | sun3_attn586(); | |
612 | WAIT_4_SCB_CMD(); | |
613 | #else | |
614 | p->xmit_cmds[0]->cmd_link = make16(p->xmit_cmds[0]); | |
615 | p->xmit_cmds[0]->cmd_cmd = swab16(CMD_XMIT | CMD_SUSPEND | CMD_INT); | |
616 | #endif | |
617 | ||
618 | /* | |
619 | * ack. interrupts | |
620 | */ | |
621 | p->scb->cmd_cuc = p->scb->cus & STAT_MASK; | |
622 | sun3_attn586(); | |
623 | DELAY_16(); | |
624 | ||
625 | sun3_enaint(); | |
626 | sun3_active(); | |
627 | ||
628 | return 0; | |
629 | } | |
630 | ||
631 | /****************************************************** | |
632 | * This is a helper routine for sun3_82586_rnr_int() and init586(). | |
633 | * It sets up the Receive Frame Area (RFA). | |
634 | */ | |
635 | ||
636 | static void *alloc_rfa(struct net_device *dev,void *ptr) | |
637 | { | |
638 | volatile struct rfd_struct *rfd = (struct rfd_struct *)ptr; | |
639 | volatile struct rbd_struct *rbd; | |
640 | int i; | |
8f15ea42 | 641 | struct priv *p = netdev_priv(dev); |
1da177e4 LT |
642 | |
643 | memset((char *) rfd,0,sizeof(struct rfd_struct)*(p->num_recv_buffs+rfdadd)); | |
644 | p->rfd_first = rfd; | |
645 | ||
646 | for(i = 0; i < (p->num_recv_buffs+rfdadd); i++) { | |
647 | rfd[i].next = make16(rfd + (i+1) % (p->num_recv_buffs+rfdadd) ); | |
648 | rfd[i].rbd_offset = 0xffff; | |
649 | } | |
650 | rfd[p->num_recv_buffs-1+rfdadd].last = RFD_SUSP; /* RU suspend */ | |
651 | ||
652 | ptr = (void *) (rfd + (p->num_recv_buffs + rfdadd) ); | |
653 | ||
654 | rbd = (struct rbd_struct *) ptr; | |
655 | ptr = (void *) (rbd + p->num_recv_buffs); | |
656 | ||
657 | /* clr descriptors */ | |
658 | memset((char *) rbd,0,sizeof(struct rbd_struct)*(p->num_recv_buffs)); | |
659 | ||
660 | for(i=0;i<p->num_recv_buffs;i++) | |
661 | { | |
662 | rbd[i].next = make16((rbd + (i+1) % p->num_recv_buffs)); | |
663 | rbd[i].size = swab16(RECV_BUFF_SIZE); | |
664 | rbd[i].buffer = make24(ptr); | |
665 | ptr = (char *) ptr + RECV_BUFF_SIZE; | |
666 | } | |
667 | ||
668 | p->rfd_top = p->rfd_first; | |
669 | p->rfd_last = p->rfd_first + (p->num_recv_buffs - 1 + rfdadd); | |
670 | ||
671 | p->scb->rfa_offset = make16(p->rfd_first); | |
672 | p->rfd_first->rbd_offset = make16(rbd); | |
673 | ||
674 | return ptr; | |
675 | } | |
676 | ||
677 | ||
678 | /************************************************** | |
679 | * Interrupt Handler ... | |
680 | */ | |
681 | ||
7d12e780 | 682 | static irqreturn_t sun3_82586_interrupt(int irq,void *dev_id) |
1da177e4 LT |
683 | { |
684 | struct net_device *dev = dev_id; | |
685 | unsigned short stat; | |
686 | int cnt=0; | |
687 | struct priv *p; | |
688 | ||
689 | if (!dev) { | |
690 | printk ("sun3_82586-interrupt: irq %d for unknown device.\n",irq); | |
691 | return IRQ_NONE; | |
692 | } | |
8f15ea42 | 693 | p = netdev_priv(dev); |
1da177e4 LT |
694 | |
695 | if(debuglevel > 1) | |
696 | printk("I"); | |
697 | ||
698 | WAIT_4_SCB_CMD(); /* wait for last command */ | |
699 | ||
700 | while((stat=p->scb->cus & STAT_MASK)) | |
701 | { | |
702 | p->scb->cmd_cuc = stat; | |
703 | sun3_attn586(); | |
704 | ||
705 | if(stat & STAT_FR) /* received a frame */ | |
706 | sun3_82586_rcv_int(dev); | |
707 | ||
708 | if(stat & STAT_RNR) /* RU went 'not ready' */ | |
709 | { | |
710 | printk("(R)"); | |
711 | if(p->scb->rus & RU_SUSPEND) /* special case: RU_SUSPEND */ | |
712 | { | |
713 | WAIT_4_SCB_CMD(); | |
714 | p->scb->cmd_ruc = RUC_RESUME; | |
715 | sun3_attn586(); | |
716 | WAIT_4_SCB_CMD_RUC(); | |
717 | } | |
718 | else | |
719 | { | |
720 | printk("%s: Receiver-Unit went 'NOT READY': %04x/%02x.\n",dev->name,(int) stat,(int) p->scb->rus); | |
721 | sun3_82586_rnr_int(dev); | |
722 | } | |
723 | } | |
724 | ||
725 | if(stat & STAT_CX) /* command with I-bit set complete */ | |
726 | sun3_82586_xmt_int(dev); | |
727 | ||
728 | #ifndef NO_NOPCOMMANDS | |
729 | if(stat & STAT_CNA) /* CU went 'not ready' */ | |
730 | { | |
731 | if(netif_running(dev)) | |
732 | printk("%s: oops! CU has left active state. stat: %04x/%02x.\n",dev->name,(int) stat,(int) p->scb->cus); | |
733 | } | |
734 | #endif | |
735 | ||
736 | if(debuglevel > 1) | |
737 | printk("%d",cnt++); | |
738 | ||
739 | WAIT_4_SCB_CMD(); /* wait for ack. (sun3_82586_xmt_int can be faster than ack!!) */ | |
740 | if(p->scb->cmd_cuc) /* timed out? */ | |
741 | { | |
742 | printk("%s: Acknowledge timed out.\n",dev->name); | |
743 | sun3_disint(); | |
744 | break; | |
745 | } | |
746 | } | |
747 | ||
748 | if(debuglevel > 1) | |
749 | printk("i"); | |
750 | return IRQ_HANDLED; | |
751 | } | |
752 | ||
753 | /******************************************************* | |
754 | * receive-interrupt | |
755 | */ | |
756 | ||
757 | static void sun3_82586_rcv_int(struct net_device *dev) | |
758 | { | |
759 | int status,cnt=0; | |
760 | unsigned short totlen; | |
761 | struct sk_buff *skb; | |
762 | struct rbd_struct *rbd; | |
8f15ea42 | 763 | struct priv *p = netdev_priv(dev); |
1da177e4 LT |
764 | |
765 | if(debuglevel > 0) | |
766 | printk("R"); | |
767 | ||
768 | for(;(status = p->rfd_top->stat_high) & RFD_COMPL;) | |
769 | { | |
770 | rbd = (struct rbd_struct *) make32(p->rfd_top->rbd_offset); | |
771 | ||
772 | if(status & RFD_OK) /* frame received without error? */ | |
773 | { | |
774 | if( (totlen = swab16(rbd->status)) & RBD_LAST) /* the first and the last buffer? */ | |
775 | { | |
776 | totlen &= RBD_MASK; /* length of this frame */ | |
777 | rbd->status = 0; | |
c056b734 | 778 | skb = netdev_alloc_skb(dev, totlen + 2); |
1da177e4 LT |
779 | if(skb != NULL) |
780 | { | |
1da177e4 LT |
781 | skb_reserve(skb,2); |
782 | skb_put(skb,totlen); | |
8c7b7faa | 783 | skb_copy_to_linear_data(skb,(char *) p->base+swab32((unsigned long) rbd->buffer),totlen); |
1da177e4 LT |
784 | skb->protocol=eth_type_trans(skb,dev); |
785 | netif_rx(skb); | |
4e922723 | 786 | dev->stats.rx_packets++; |
1da177e4 LT |
787 | } |
788 | else | |
4e922723 | 789 | dev->stats.rx_dropped++; |
1da177e4 LT |
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); | |
4e922723 | 810 | dev->stats.rx_dropped++; |
1da177e4 LT |
811 | } |
812 | } | |
813 | else /* frame !(ok), only with 'save-bad-frames' */ | |
814 | { | |
815 | printk("%s: oops! rfd-error-status: %04x\n",dev->name,status); | |
4e922723 | 816 | dev->stats.rx_errors++; |
1da177e4 LT |
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 | { | |
8f15ea42 | 881 | struct priv *p = netdev_priv(dev); |
1da177e4 | 882 | |
4e922723 | 883 | dev->stats.rx_errors++; |
1da177e4 LT |
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; | |
8f15ea42 | 905 | struct priv *p = netdev_priv(dev); |
1da177e4 LT |
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 | { | |
4e922723 KV |
916 | dev->stats.tx_packets++; |
917 | dev->stats.collisions += (status & TCMD_MAXCOLLMASK); | |
1da177e4 LT |
918 | } |
919 | else | |
920 | { | |
4e922723 | 921 | dev->stats.tx_errors++; |
1da177e4 LT |
922 | if(status & TCMD_LATECOLL) { |
923 | printk("%s: late collision detected.\n",dev->name); | |
4e922723 | 924 | dev->stats.collisions++; |
1da177e4 LT |
925 | } |
926 | else if(status & TCMD_NOCARRIER) { | |
4e922723 | 927 | dev->stats.tx_carrier_errors++; |
1da177e4 LT |
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) { | |
4e922723 | 933 | dev->stats.tx_fifo_errors++; |
1da177e4 LT |
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); | |
4e922723 | 938 | dev->stats.collisions += 16; |
1da177e4 LT |
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 | { | |
8f15ea42 | 955 | struct priv *p = netdev_priv(dev); |
1da177e4 LT |
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 | ||
0290bd29 | 965 | static void sun3_82586_timeout(struct net_device *dev, unsigned int txqueue) |
1da177e4 | 966 | { |
8f15ea42 | 967 | struct priv *p = netdev_priv(dev); |
1da177e4 LT |
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(); | |
860e9538 | 983 | netif_trans_update(dev); /* prevent tx timeout */ |
1da177e4 LT |
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 | } | |
860e9538 | 996 | netif_trans_update(dev); /* prevent tx timeout */ |
1da177e4 LT |
997 | } |
998 | ||
999 | /****************************************************** | |
1000 | * send frame | |
1001 | */ | |
1002 | ||
648c361a Y |
1003 | static netdev_tx_t |
1004 | sun3_82586_send_packet(struct sk_buff *skb, struct net_device *dev) | |
1da177e4 LT |
1005 | { |
1006 | int len,i; | |
1007 | #ifndef NO_NOPCOMMANDS | |
1008 | int next_nop; | |
1009 | #endif | |
8f15ea42 | 1010 | struct priv *p = netdev_priv(dev); |
1da177e4 LT |
1011 | |
1012 | if(skb->len > XMIT_BUFF_SIZE) | |
1013 | { | |
1014 | printk("%s: Sorry, max. framelength is %d bytes. The length of your frame is %d bytes.\n",dev->name,XMIT_BUFF_SIZE,skb->len); | |
6ed10654 | 1015 | return NETDEV_TX_OK; |
1da177e4 LT |
1016 | } |
1017 | ||
1018 | netif_stop_queue(dev); | |
1019 | ||
1020 | #if(NUM_XMIT_BUFFS > 1) | |
1021 | if(test_and_set_bit(0,(void *) &p->lock)) { | |
1022 | printk("%s: Queue was locked\n",dev->name); | |
5b548140 | 1023 | return NETDEV_TX_BUSY; |
1da177e4 LT |
1024 | } |
1025 | else | |
1026 | #endif | |
1027 | { | |
1028 | len = skb->len; | |
1029 | if (len < ETH_ZLEN) { | |
cfa08bb5 GU |
1030 | memset((void *)p->xmit_cbuffs[p->xmit_count], 0, |
1031 | ETH_ZLEN); | |
1da177e4 LT |
1032 | len = ETH_ZLEN; |
1033 | } | |
cfa08bb5 | 1034 | skb_copy_from_linear_data(skb, (void *)p->xmit_cbuffs[p->xmit_count], skb->len); |
1da177e4 LT |
1035 | |
1036 | #if (NUM_XMIT_BUFFS == 1) | |
1037 | # ifdef NO_NOPCOMMANDS | |
1038 | ||
1039 | #ifdef DEBUG | |
1040 | if(p->scb->cus & CU_ACTIVE) | |
1041 | { | |
1042 | printk("%s: Hmmm .. CU is still running and we wanna send a new packet.\n",dev->name); | |
1043 | printk("%s: stat: %04x %04x\n",dev->name,p->scb->cus,swab16(p->xmit_cmds[0]->cmd_status)); | |
1044 | } | |
1045 | #endif | |
1046 | ||
1047 | p->xmit_buffs[0]->size = swab16(TBD_LAST | len); | |
1048 | for(i=0;i<16;i++) | |
1049 | { | |
1050 | p->xmit_cmds[0]->cmd_status = 0; | |
1051 | WAIT_4_SCB_CMD(); | |
1052 | if( (p->scb->cus & CU_STATUS) == CU_SUSPEND) | |
1053 | p->scb->cmd_cuc = CUC_RESUME; | |
1054 | else | |
1055 | { | |
1056 | p->scb->cbl_offset = make16(p->xmit_cmds[0]); | |
1057 | p->scb->cmd_cuc = CUC_START; | |
1058 | } | |
1059 | ||
1060 | sun3_attn586(); | |
1da177e4 LT |
1061 | if(!i) |
1062 | dev_kfree_skb(skb); | |
1063 | WAIT_4_SCB_CMD(); | |
1064 | if( (p->scb->cus & CU_ACTIVE)) /* test it, because CU sometimes doesn't start immediately */ | |
1065 | break; | |
1066 | if(p->xmit_cmds[0]->cmd_status) | |
1067 | break; | |
1068 | if(i==15) | |
1069 | printk("%s: Can't start transmit-command.\n",dev->name); | |
1070 | } | |
1071 | # else | |
1072 | next_nop = (p->nop_point + 1) & 0x1; | |
1073 | p->xmit_buffs[0]->size = swab16(TBD_LAST | len); | |
1074 | ||
1075 | p->xmit_cmds[0]->cmd_link = p->nop_cmds[next_nop]->cmd_link | |
1076 | = make16((p->nop_cmds[next_nop])); | |
1077 | p->xmit_cmds[0]->cmd_status = p->nop_cmds[next_nop]->cmd_status = 0; | |
1078 | ||
1079 | p->nop_cmds[p->nop_point]->cmd_link = make16((p->xmit_cmds[0])); | |
1da177e4 LT |
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])); | |
1da177e4 LT |
1094 | p->xmit_count = next_nop; |
1095 | ||
1096 | { | |
1097 | unsigned long flags; | |
1098 | local_irq_save(flags); | |
1099 | if(p->xmit_count != p->xmit_last) | |
1100 | netif_wake_queue(dev); | |
1101 | p->lock = 0; | |
1102 | local_irq_restore(flags); | |
1103 | } | |
1104 | dev_kfree_skb(skb); | |
1105 | #endif | |
1106 | } | |
6ed10654 | 1107 | return NETDEV_TX_OK; |
1da177e4 LT |
1108 | } |
1109 | ||
1110 | /******************************************* | |
1111 | * Someone wanna have the statistics | |
1112 | */ | |
1113 | ||
1114 | static struct net_device_stats *sun3_82586_get_stats(struct net_device *dev) | |
1115 | { | |
8f15ea42 | 1116 | struct priv *p = netdev_priv(dev); |
1da177e4 LT |
1117 | unsigned short crc,aln,rsc,ovrn; |
1118 | ||
1119 | crc = swab16(p->scb->crc_errs); /* get error-statistic from the ni82586 */ | |
1120 | p->scb->crc_errs = 0; | |
1121 | aln = swab16(p->scb->aln_errs); | |
1122 | p->scb->aln_errs = 0; | |
1123 | rsc = swab16(p->scb->rsc_errs); | |
1124 | p->scb->rsc_errs = 0; | |
1125 | ovrn = swab16(p->scb->ovrn_errs); | |
1126 | p->scb->ovrn_errs = 0; | |
1127 | ||
4e922723 KV |
1128 | dev->stats.rx_crc_errors += crc; |
1129 | dev->stats.rx_fifo_errors += ovrn; | |
1130 | dev->stats.rx_frame_errors += aln; | |
1131 | dev->stats.rx_dropped += rsc; | |
1da177e4 | 1132 | |
4e922723 | 1133 | return &dev->stats; |
1da177e4 LT |
1134 | } |
1135 | ||
1136 | /******************************************************** | |
1137 | * Set MC list .. | |
1138 | */ | |
1139 | ||
1140 | static void set_multicast_list(struct net_device *dev) | |
1141 | { | |
1142 | netif_stop_queue(dev); | |
1143 | sun3_disint(); | |
1144 | alloc586(dev); | |
1145 | init586(dev); | |
1146 | startrecv586(dev); | |
1147 | sun3_enaint(); | |
1148 | netif_wake_queue(dev); | |
1149 | } | |
1150 | ||
1da177e4 LT |
1151 | #if 0 |
1152 | /* | |
1153 | * DUMP .. we expect a not running CMD unit and enough space | |
1154 | */ | |
1155 | void sun3_82586_dump(struct net_device *dev,void *ptr) | |
1156 | { | |
8f15ea42 | 1157 | struct priv *p = netdev_priv(dev); |
1da177e4 LT |
1158 | struct dump_cmd_struct *dump_cmd = (struct dump_cmd_struct *) ptr; |
1159 | int i; | |
1160 | ||
1161 | p->scb->cmd_cuc = CUC_ABORT; | |
1162 | sun3_attn586(); | |
1163 | WAIT_4_SCB_CMD(); | |
1164 | WAIT_4_SCB_CMD_RUC(); | |
1165 | ||
1166 | dump_cmd->cmd_status = 0; | |
1167 | dump_cmd->cmd_cmd = CMD_DUMP | CMD_LAST; | |
1168 | dump_cmd->dump_offset = make16((dump_cmd + 1)); | |
1169 | dump_cmd->cmd_link = 0xffff; | |
1170 | ||
1171 | p->scb->cbl_offset = make16(dump_cmd); | |
1172 | p->scb->cmd_cuc = CUC_START; | |
1173 | sun3_attn586(); | |
1174 | WAIT_4_STAT_COMPL(dump_cmd); | |
1175 | ||
1176 | if( (dump_cmd->cmd_status & (STAT_COMPL|STAT_OK)) != (STAT_COMPL|STAT_OK) ) | |
1177 | printk("%s: Can't get dump information.\n",dev->name); | |
1178 | ||
1179 | for(i=0;i<170;i++) { | |
1180 | printk("%02x ",(int) ((unsigned char *) (dump_cmd + 1))[i]); | |
1181 | if(i % 24 == 23) | |
1182 | printk("\n"); | |
1183 | } | |
1184 | printk("\n"); | |
1185 | } | |
1186 | #endif |