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