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1da177e4 LT |
1 | /* 82596.c: A generic 82596 ethernet driver for linux. */ |
2 | /* | |
3 | Based on Apricot.c | |
4 | Written 1994 by Mark Evans. | |
5 | This driver is for the Apricot 82596 bus-master interface | |
6 | ||
7 | Modularised 12/94 Mark Evans | |
8 | ||
9 | ||
10 | Modified to support the 82596 ethernet chips on 680x0 VME boards. | |
11 | by Richard Hirst <richard@sleepie.demon.co.uk> | |
12 | Renamed to be 82596.c | |
13 | ||
14 | 980825: Changed to receive directly in to sk_buffs which are | |
15 | allocated at open() time. Eliminates copy on incoming frames | |
16 | (small ones are still copied). Shared data now held in a | |
17 | non-cached page, so we can run on 68060 in copyback mode. | |
18 | ||
19 | TBD: | |
20 | * look at deferring rx frames rather than discarding (as per tulip) | |
21 | * handle tx ring full as per tulip | |
af901ca1 | 22 | * performance test to tune rx_copybreak |
1da177e4 LT |
23 | |
24 | Most of my modifications relate to the braindead big-endian | |
25 | implementation by Intel. When the i596 is operating in | |
26 | 'big-endian' mode, it thinks a 32 bit value of 0x12345678 | |
27 | should be stored as 0x56781234. This is a real pain, when | |
28 | you have linked lists which are shared by the 680x0 and the | |
29 | i596. | |
30 | ||
31 | Driver skeleton | |
32 | Written 1993 by Donald Becker. | |
33 | Copyright 1993 United States Government as represented by the Director, | |
34 | National Security Agency. This software may only be used and distributed | |
35 | according to the terms of the GNU General Public License as modified by SRC, | |
36 | incorporated herein by reference. | |
37 | ||
38 | The author may be reached as becker@scyld.com, or C/O | |
39 | Scyld Computing Corporation, 410 Severn Ave., Suite 210, Annapolis MD 21403 | |
40 | ||
41 | */ | |
42 | ||
1da177e4 LT |
43 | #include <linux/module.h> |
44 | #include <linux/kernel.h> | |
45 | #include <linux/string.h> | |
46 | #include <linux/errno.h> | |
47 | #include <linux/ioport.h> | |
1da177e4 LT |
48 | #include <linux/interrupt.h> |
49 | #include <linux/delay.h> | |
50 | #include <linux/netdevice.h> | |
51 | #include <linux/etherdevice.h> | |
52 | #include <linux/skbuff.h> | |
53 | #include <linux/init.h> | |
54 | #include <linux/bitops.h> | |
5a0e3ad6 | 55 | #include <linux/gfp.h> |
1da177e4 LT |
56 | |
57 | #include <asm/io.h> | |
58 | #include <asm/dma.h> | |
59 | #include <asm/pgtable.h> | |
88accb49 | 60 | #include <asm/cacheflush.h> |
1da177e4 LT |
61 | |
62 | static char version[] __initdata = | |
63 | "82596.c $Revision: 1.5 $\n"; | |
64 | ||
65 | #define DRV_NAME "82596" | |
66 | ||
67 | /* DEBUG flags | |
68 | */ | |
69 | ||
70 | #define DEB_INIT 0x0001 | |
71 | #define DEB_PROBE 0x0002 | |
72 | #define DEB_SERIOUS 0x0004 | |
73 | #define DEB_ERRORS 0x0008 | |
74 | #define DEB_MULTI 0x0010 | |
75 | #define DEB_TDR 0x0020 | |
76 | #define DEB_OPEN 0x0040 | |
77 | #define DEB_RESET 0x0080 | |
78 | #define DEB_ADDCMD 0x0100 | |
79 | #define DEB_STATUS 0x0200 | |
80 | #define DEB_STARTTX 0x0400 | |
81 | #define DEB_RXADDR 0x0800 | |
82 | #define DEB_TXADDR 0x1000 | |
83 | #define DEB_RXFRAME 0x2000 | |
84 | #define DEB_INTS 0x4000 | |
85 | #define DEB_STRUCT 0x8000 | |
86 | #define DEB_ANY 0xffff | |
87 | ||
88 | ||
89 | #define DEB(x,y) if (i596_debug & (x)) y | |
90 | ||
91 | ||
e2eae5b8 | 92 | #if IS_ENABLED(CONFIG_MVME16x_NET) |
1da177e4 LT |
93 | #define ENABLE_MVME16x_NET |
94 | #endif | |
e2eae5b8 | 95 | #if IS_ENABLED(CONFIG_BVME6000_NET) |
1da177e4 LT |
96 | #define ENABLE_BVME6000_NET |
97 | #endif | |
1da177e4 LT |
98 | |
99 | #ifdef ENABLE_MVME16x_NET | |
100 | #include <asm/mvme16xhw.h> | |
101 | #endif | |
102 | #ifdef ENABLE_BVME6000_NET | |
103 | #include <asm/bvme6000hw.h> | |
104 | #endif | |
105 | ||
106 | /* | |
107 | * Define various macros for Channel Attention, word swapping etc., dependent | |
108 | * on architecture. MVME and BVME are 680x0 based, otherwise it is Intel. | |
109 | */ | |
110 | ||
111 | #ifdef __mc68000__ | |
112 | #define WSWAPrfd(x) ((struct i596_rfd *) (((u32)(x)<<16) | ((((u32)(x)))>>16))) | |
113 | #define WSWAPrbd(x) ((struct i596_rbd *) (((u32)(x)<<16) | ((((u32)(x)))>>16))) | |
114 | #define WSWAPiscp(x) ((struct i596_iscp *)(((u32)(x)<<16) | ((((u32)(x)))>>16))) | |
115 | #define WSWAPscb(x) ((struct i596_scb *) (((u32)(x)<<16) | ((((u32)(x)))>>16))) | |
116 | #define WSWAPcmd(x) ((struct i596_cmd *) (((u32)(x)<<16) | ((((u32)(x)))>>16))) | |
117 | #define WSWAPtbd(x) ((struct i596_tbd *) (((u32)(x)<<16) | ((((u32)(x)))>>16))) | |
118 | #define WSWAPchar(x) ((char *) (((u32)(x)<<16) | ((((u32)(x)))>>16))) | |
119 | #define ISCP_BUSY 0x00010000 | |
1da177e4 | 120 | #else |
6e07ba3e PG |
121 | #error 82596.c: unknown architecture |
122 | #endif | |
123 | ||
124 | /* | |
125 | * These were the intel versions, left here for reference. There | |
126 | * are currently no x86 users of this legacy i82596 chip. | |
127 | */ | |
128 | #if 0 | |
3699a1c7 AM |
129 | #define WSWAPrfd(x) ((struct i596_rfd *)((long)x)) |
130 | #define WSWAPrbd(x) ((struct i596_rbd *)((long)x)) | |
131 | #define WSWAPiscp(x) ((struct i596_iscp *)((long)x)) | |
132 | #define WSWAPscb(x) ((struct i596_scb *)((long)x)) | |
133 | #define WSWAPcmd(x) ((struct i596_cmd *)((long)x)) | |
134 | #define WSWAPtbd(x) ((struct i596_tbd *)((long)x)) | |
135 | #define WSWAPchar(x) ((char *)((long)x)) | |
1da177e4 | 136 | #define ISCP_BUSY 0x0001 |
1da177e4 LT |
137 | #endif |
138 | ||
139 | /* | |
140 | * The MPU_PORT command allows direct access to the 82596. With PORT access | |
141 | * the following commands are available (p5-18). The 32-bit port command | |
142 | * must be word-swapped with the most significant word written first. | |
143 | * This only applies to VME boards. | |
144 | */ | |
145 | #define PORT_RESET 0x00 /* reset 82596 */ | |
146 | #define PORT_SELFTEST 0x01 /* selftest */ | |
147 | #define PORT_ALTSCP 0x02 /* alternate SCB address */ | |
148 | #define PORT_ALTDUMP 0x03 /* Alternate DUMP address */ | |
149 | ||
150 | static int i596_debug = (DEB_SERIOUS|DEB_PROBE); | |
151 | ||
152 | MODULE_AUTHOR("Richard Hirst"); | |
153 | MODULE_DESCRIPTION("i82596 driver"); | |
154 | MODULE_LICENSE("GPL"); | |
155 | ||
156 | module_param(i596_debug, int, 0); | |
157 | MODULE_PARM_DESC(i596_debug, "i82596 debug mask"); | |
158 | ||
159 | ||
160 | /* Copy frames shorter than rx_copybreak, otherwise pass on up in | |
161 | * a full sized sk_buff. Value of 100 stolen from tulip.c (!alpha). | |
162 | */ | |
163 | static int rx_copybreak = 100; | |
164 | ||
165 | #define PKT_BUF_SZ 1536 | |
166 | #define MAX_MC_CNT 64 | |
167 | ||
168 | #define I596_TOTAL_SIZE 17 | |
169 | ||
170 | #define I596_NULL ((void *)0xffffffff) | |
171 | ||
172 | #define CMD_EOL 0x8000 /* The last command of the list, stop. */ | |
173 | #define CMD_SUSP 0x4000 /* Suspend after doing cmd. */ | |
174 | #define CMD_INTR 0x2000 /* Interrupt after doing cmd. */ | |
175 | ||
176 | #define CMD_FLEX 0x0008 /* Enable flexible memory model */ | |
177 | ||
178 | enum commands { | |
179 | CmdNOp = 0, CmdSASetup = 1, CmdConfigure = 2, CmdMulticastList = 3, | |
180 | CmdTx = 4, CmdTDR = 5, CmdDump = 6, CmdDiagnose = 7 | |
181 | }; | |
182 | ||
183 | #define STAT_C 0x8000 /* Set to 0 after execution */ | |
184 | #define STAT_B 0x4000 /* Command being executed */ | |
185 | #define STAT_OK 0x2000 /* Command executed ok */ | |
186 | #define STAT_A 0x1000 /* Command aborted */ | |
187 | ||
188 | #define CUC_START 0x0100 | |
189 | #define CUC_RESUME 0x0200 | |
190 | #define CUC_SUSPEND 0x0300 | |
191 | #define CUC_ABORT 0x0400 | |
192 | #define RX_START 0x0010 | |
193 | #define RX_RESUME 0x0020 | |
194 | #define RX_SUSPEND 0x0030 | |
195 | #define RX_ABORT 0x0040 | |
196 | ||
c63fdf46 | 197 | #define TX_TIMEOUT (HZ/20) |
1da177e4 LT |
198 | |
199 | ||
200 | struct i596_reg { | |
201 | unsigned short porthi; | |
202 | unsigned short portlo; | |
203 | unsigned long ca; | |
204 | }; | |
205 | ||
206 | #define EOF 0x8000 | |
207 | #define SIZE_MASK 0x3fff | |
208 | ||
209 | struct i596_tbd { | |
210 | unsigned short size; | |
211 | unsigned short pad; | |
212 | struct i596_tbd *next; | |
213 | char *data; | |
214 | }; | |
215 | ||
216 | /* The command structure has two 'next' pointers; v_next is the address of | |
217 | * the next command as seen by the CPU, b_next is the address of the next | |
218 | * command as seen by the 82596. The b_next pointer, as used by the 82596 | |
219 | * always references the status field of the next command, rather than the | |
220 | * v_next field, because the 82596 is unaware of v_next. It may seem more | |
221 | * logical to put v_next at the end of the structure, but we cannot do that | |
222 | * because the 82596 expects other fields to be there, depending on command | |
223 | * type. | |
224 | */ | |
225 | ||
226 | struct i596_cmd { | |
227 | struct i596_cmd *v_next; /* Address from CPUs viewpoint */ | |
228 | unsigned short status; | |
229 | unsigned short command; | |
230 | struct i596_cmd *b_next; /* Address from i596 viewpoint */ | |
231 | }; | |
232 | ||
233 | struct tx_cmd { | |
234 | struct i596_cmd cmd; | |
235 | struct i596_tbd *tbd; | |
236 | unsigned short size; | |
237 | unsigned short pad; | |
238 | struct sk_buff *skb; /* So we can free it after tx */ | |
239 | }; | |
240 | ||
241 | struct tdr_cmd { | |
242 | struct i596_cmd cmd; | |
243 | unsigned short status; | |
244 | unsigned short pad; | |
245 | }; | |
246 | ||
247 | struct mc_cmd { | |
248 | struct i596_cmd cmd; | |
249 | short mc_cnt; | |
250 | char mc_addrs[MAX_MC_CNT*6]; | |
251 | }; | |
252 | ||
253 | struct sa_cmd { | |
254 | struct i596_cmd cmd; | |
255 | char eth_addr[8]; | |
256 | }; | |
257 | ||
258 | struct cf_cmd { | |
259 | struct i596_cmd cmd; | |
260 | char i596_config[16]; | |
261 | }; | |
262 | ||
263 | struct i596_rfd { | |
264 | unsigned short stat; | |
265 | unsigned short cmd; | |
266 | struct i596_rfd *b_next; /* Address from i596 viewpoint */ | |
267 | struct i596_rbd *rbd; | |
268 | unsigned short count; | |
269 | unsigned short size; | |
270 | struct i596_rfd *v_next; /* Address from CPUs viewpoint */ | |
271 | struct i596_rfd *v_prev; | |
272 | }; | |
273 | ||
274 | struct i596_rbd { | |
275 | unsigned short count; | |
276 | unsigned short zero1; | |
277 | struct i596_rbd *b_next; | |
278 | unsigned char *b_data; /* Address from i596 viewpoint */ | |
279 | unsigned short size; | |
280 | unsigned short zero2; | |
281 | struct sk_buff *skb; | |
282 | struct i596_rbd *v_next; | |
283 | struct i596_rbd *b_addr; /* This rbd addr from i596 view */ | |
284 | unsigned char *v_data; /* Address from CPUs viewpoint */ | |
285 | }; | |
286 | ||
287 | #define TX_RING_SIZE 64 | |
288 | #define RX_RING_SIZE 16 | |
289 | ||
290 | struct i596_scb { | |
291 | unsigned short status; | |
292 | unsigned short command; | |
293 | struct i596_cmd *cmd; | |
294 | struct i596_rfd *rfd; | |
295 | unsigned long crc_err; | |
296 | unsigned long align_err; | |
297 | unsigned long resource_err; | |
298 | unsigned long over_err; | |
299 | unsigned long rcvdt_err; | |
300 | unsigned long short_err; | |
301 | unsigned short t_on; | |
302 | unsigned short t_off; | |
303 | }; | |
304 | ||
305 | struct i596_iscp { | |
306 | unsigned long stat; | |
307 | struct i596_scb *scb; | |
308 | }; | |
309 | ||
310 | struct i596_scp { | |
311 | unsigned long sysbus; | |
312 | unsigned long pad; | |
313 | struct i596_iscp *iscp; | |
314 | }; | |
315 | ||
316 | struct i596_private { | |
317 | volatile struct i596_scp scp; | |
318 | volatile struct i596_iscp iscp; | |
319 | volatile struct i596_scb scb; | |
320 | struct sa_cmd sa_cmd; | |
321 | struct cf_cmd cf_cmd; | |
322 | struct tdr_cmd tdr_cmd; | |
323 | struct mc_cmd mc_cmd; | |
324 | unsigned long stat; | |
325 | int last_restart __attribute__((aligned(4))); | |
326 | struct i596_rfd *rfd_head; | |
327 | struct i596_rbd *rbd_head; | |
328 | struct i596_cmd *cmd_tail; | |
329 | struct i596_cmd *cmd_head; | |
330 | int cmd_backlog; | |
331 | unsigned long last_cmd; | |
1da177e4 LT |
332 | struct i596_rfd rfds[RX_RING_SIZE]; |
333 | struct i596_rbd rbds[RX_RING_SIZE]; | |
334 | struct tx_cmd tx_cmds[TX_RING_SIZE]; | |
335 | struct i596_tbd tbds[TX_RING_SIZE]; | |
336 | int next_tx_cmd; | |
337 | spinlock_t lock; | |
338 | }; | |
339 | ||
340 | static char init_setup[] = | |
341 | { | |
342 | 0x8E, /* length, prefetch on */ | |
343 | 0xC8, /* fifo to 8, monitor off */ | |
344 | #ifdef CONFIG_VME | |
345 | 0xc0, /* don't save bad frames */ | |
346 | #else | |
347 | 0x80, /* don't save bad frames */ | |
348 | #endif | |
349 | 0x2E, /* No source address insertion, 8 byte preamble */ | |
350 | 0x00, /* priority and backoff defaults */ | |
351 | 0x60, /* interframe spacing */ | |
352 | 0x00, /* slot time LSB */ | |
353 | 0xf2, /* slot time and retries */ | |
354 | 0x00, /* promiscuous mode */ | |
355 | 0x00, /* collision detect */ | |
356 | 0x40, /* minimum frame length */ | |
357 | 0xff, | |
358 | 0x00, | |
359 | 0x7f /* *multi IA */ }; | |
360 | ||
361 | static int i596_open(struct net_device *dev); | |
61357325 | 362 | static netdev_tx_t i596_start_xmit(struct sk_buff *skb, struct net_device *dev); |
7d12e780 | 363 | static irqreturn_t i596_interrupt(int irq, void *dev_id); |
1da177e4 | 364 | static int i596_close(struct net_device *dev); |
1da177e4 | 365 | static void i596_add_cmd(struct net_device *dev, struct i596_cmd *cmd); |
0290bd29 | 366 | static void i596_tx_timeout (struct net_device *dev, unsigned int txqueue); |
1da177e4 LT |
367 | static void print_eth(unsigned char *buf, char *str); |
368 | static void set_multicast_list(struct net_device *dev); | |
369 | ||
370 | static int rx_ring_size = RX_RING_SIZE; | |
371 | static int ticks_limit = 25; | |
372 | static int max_cmd_backlog = TX_RING_SIZE-1; | |
373 | ||
374 | ||
375 | static inline void CA(struct net_device *dev) | |
376 | { | |
377 | #ifdef ENABLE_MVME16x_NET | |
378 | if (MACH_IS_MVME16x) { | |
379 | ((struct i596_reg *) dev->base_addr)->ca = 1; | |
380 | } | |
381 | #endif | |
382 | #ifdef ENABLE_BVME6000_NET | |
383 | if (MACH_IS_BVME6000) { | |
384 | volatile u32 i; | |
385 | ||
386 | i = *(volatile u32 *) (dev->base_addr); | |
387 | } | |
388 | #endif | |
1da177e4 LT |
389 | } |
390 | ||
391 | ||
392 | static inline void MPU_PORT(struct net_device *dev, int c, volatile void *x) | |
393 | { | |
394 | #ifdef ENABLE_MVME16x_NET | |
395 | if (MACH_IS_MVME16x) { | |
396 | struct i596_reg *p = (struct i596_reg *) (dev->base_addr); | |
397 | p->porthi = ((c) | (u32) (x)) & 0xffff; | |
398 | p->portlo = ((c) | (u32) (x)) >> 16; | |
399 | } | |
400 | #endif | |
401 | #ifdef ENABLE_BVME6000_NET | |
402 | if (MACH_IS_BVME6000) { | |
403 | u32 v = (u32) (c) | (u32) (x); | |
404 | v = ((u32) (v) << 16) | ((u32) (v) >> 16); | |
405 | *(volatile u32 *) dev->base_addr = v; | |
406 | udelay(1); | |
407 | *(volatile u32 *) dev->base_addr = v; | |
408 | } | |
409 | #endif | |
410 | } | |
411 | ||
412 | ||
413 | static inline int wait_istat(struct net_device *dev, struct i596_private *lp, int delcnt, char *str) | |
414 | { | |
415 | while (--delcnt && lp->iscp.stat) | |
416 | udelay(10); | |
417 | if (!delcnt) { | |
418 | printk(KERN_ERR "%s: %s, status %4.4x, cmd %4.4x.\n", | |
419 | dev->name, str, lp->scb.status, lp->scb.command); | |
420 | return -1; | |
421 | } | |
422 | else | |
423 | return 0; | |
424 | } | |
425 | ||
426 | ||
427 | static inline int wait_cmd(struct net_device *dev, struct i596_private *lp, int delcnt, char *str) | |
428 | { | |
429 | while (--delcnt && lp->scb.command) | |
430 | udelay(10); | |
431 | if (!delcnt) { | |
432 | printk(KERN_ERR "%s: %s, status %4.4x, cmd %4.4x.\n", | |
433 | dev->name, str, lp->scb.status, lp->scb.command); | |
434 | return -1; | |
435 | } | |
436 | else | |
437 | return 0; | |
438 | } | |
439 | ||
440 | ||
441 | static inline int wait_cfg(struct net_device *dev, struct i596_cmd *cmd, int delcnt, char *str) | |
442 | { | |
443 | volatile struct i596_cmd *c = cmd; | |
6aa20a22 | 444 | |
1da177e4 LT |
445 | while (--delcnt && c->command) |
446 | udelay(10); | |
447 | if (!delcnt) { | |
448 | printk(KERN_ERR "%s: %s.\n", dev->name, str); | |
449 | return -1; | |
450 | } | |
451 | else | |
452 | return 0; | |
453 | } | |
454 | ||
6aa20a22 | 455 | |
1da177e4 LT |
456 | static void i596_display_data(struct net_device *dev) |
457 | { | |
f3a216d1 | 458 | struct i596_private *lp = dev->ml_priv; |
1da177e4 LT |
459 | struct i596_cmd *cmd; |
460 | struct i596_rfd *rfd; | |
461 | struct i596_rbd *rbd; | |
462 | ||
463 | printk(KERN_ERR "lp and scp at %p, .sysbus = %08lx, .iscp = %p\n", | |
464 | &lp->scp, lp->scp.sysbus, lp->scp.iscp); | |
465 | printk(KERN_ERR "iscp at %p, iscp.stat = %08lx, .scb = %p\n", | |
466 | &lp->iscp, lp->iscp.stat, lp->iscp.scb); | |
467 | printk(KERN_ERR "scb at %p, scb.status = %04x, .command = %04x," | |
468 | " .cmd = %p, .rfd = %p\n", | |
469 | &lp->scb, lp->scb.status, lp->scb.command, | |
470 | lp->scb.cmd, lp->scb.rfd); | |
471 | printk(KERN_ERR " errors: crc %lx, align %lx, resource %lx," | |
472 | " over %lx, rcvdt %lx, short %lx\n", | |
473 | lp->scb.crc_err, lp->scb.align_err, lp->scb.resource_err, | |
474 | lp->scb.over_err, lp->scb.rcvdt_err, lp->scb.short_err); | |
475 | cmd = lp->cmd_head; | |
476 | while (cmd != I596_NULL) { | |
477 | printk(KERN_ERR "cmd at %p, .status = %04x, .command = %04x, .b_next = %p\n", | |
478 | cmd, cmd->status, cmd->command, cmd->b_next); | |
479 | cmd = cmd->v_next; | |
480 | } | |
481 | rfd = lp->rfd_head; | |
482 | printk(KERN_ERR "rfd_head = %p\n", rfd); | |
483 | do { | |
484 | printk(KERN_ERR " %p .stat %04x, .cmd %04x, b_next %p, rbd %p," | |
485 | " count %04x\n", | |
486 | rfd, rfd->stat, rfd->cmd, rfd->b_next, rfd->rbd, | |
487 | rfd->count); | |
488 | rfd = rfd->v_next; | |
489 | } while (rfd != lp->rfd_head); | |
490 | rbd = lp->rbd_head; | |
491 | printk(KERN_ERR "rbd_head = %p\n", rbd); | |
492 | do { | |
493 | printk(KERN_ERR " %p .count %04x, b_next %p, b_data %p, size %04x\n", | |
494 | rbd, rbd->count, rbd->b_next, rbd->b_data, rbd->size); | |
495 | rbd = rbd->v_next; | |
496 | } while (rbd != lp->rbd_head); | |
497 | } | |
498 | ||
499 | ||
500 | #if defined(ENABLE_MVME16x_NET) || defined(ENABLE_BVME6000_NET) | |
7d12e780 | 501 | static irqreturn_t i596_error(int irq, void *dev_id) |
1da177e4 LT |
502 | { |
503 | struct net_device *dev = dev_id; | |
504 | #ifdef ENABLE_MVME16x_NET | |
505 | if (MACH_IS_MVME16x) { | |
506 | volatile unsigned char *pcc2 = (unsigned char *) 0xfff42000; | |
507 | ||
508 | pcc2[0x28] = 1; | |
509 | pcc2[0x2b] = 0x1d; | |
510 | } | |
511 | #endif | |
512 | #ifdef ENABLE_BVME6000_NET | |
513 | if (MACH_IS_BVME6000) { | |
514 | volatile unsigned char *ethirq = (unsigned char *) BVME_ETHIRQ_REG; | |
515 | ||
516 | *ethirq = 1; | |
517 | *ethirq = 3; | |
518 | } | |
519 | #endif | |
520 | printk(KERN_ERR "%s: Error interrupt\n", dev->name); | |
521 | i596_display_data(dev); | |
522 | return IRQ_HANDLED; | |
523 | } | |
524 | #endif | |
525 | ||
f1635304 KV |
526 | static inline void remove_rx_bufs(struct net_device *dev) |
527 | { | |
528 | struct i596_private *lp = dev->ml_priv; | |
529 | struct i596_rbd *rbd; | |
530 | int i; | |
531 | ||
532 | for (i = 0, rbd = lp->rbds; i < rx_ring_size; i++, rbd++) { | |
533 | if (rbd->skb == NULL) | |
534 | break; | |
535 | dev_kfree_skb(rbd->skb); | |
536 | rbd->skb = NULL; | |
537 | } | |
538 | } | |
539 | ||
540 | static inline int init_rx_bufs(struct net_device *dev) | |
1da177e4 | 541 | { |
f3a216d1 | 542 | struct i596_private *lp = dev->ml_priv; |
1da177e4 LT |
543 | int i; |
544 | struct i596_rfd *rfd; | |
545 | struct i596_rbd *rbd; | |
546 | ||
547 | /* First build the Receive Buffer Descriptor List */ | |
548 | ||
549 | for (i = 0, rbd = lp->rbds; i < rx_ring_size; i++, rbd++) { | |
c056b734 | 550 | struct sk_buff *skb = netdev_alloc_skb(dev, PKT_BUF_SZ); |
1da177e4 | 551 | |
f1635304 KV |
552 | if (skb == NULL) { |
553 | remove_rx_bufs(dev); | |
554 | return -ENOMEM; | |
555 | } | |
556 | ||
1da177e4 LT |
557 | rbd->v_next = rbd+1; |
558 | rbd->b_next = WSWAPrbd(virt_to_bus(rbd+1)); | |
559 | rbd->b_addr = WSWAPrbd(virt_to_bus(rbd)); | |
560 | rbd->skb = skb; | |
689be439 DM |
561 | rbd->v_data = skb->data; |
562 | rbd->b_data = WSWAPchar(virt_to_bus(skb->data)); | |
1da177e4 LT |
563 | rbd->size = PKT_BUF_SZ; |
564 | #ifdef __mc68000__ | |
689be439 | 565 | cache_clear(virt_to_phys(skb->data), PKT_BUF_SZ); |
1da177e4 LT |
566 | #endif |
567 | } | |
568 | lp->rbd_head = lp->rbds; | |
569 | rbd = lp->rbds + rx_ring_size - 1; | |
570 | rbd->v_next = lp->rbds; | |
571 | rbd->b_next = WSWAPrbd(virt_to_bus(lp->rbds)); | |
572 | ||
573 | /* Now build the Receive Frame Descriptor List */ | |
574 | ||
575 | for (i = 0, rfd = lp->rfds; i < rx_ring_size; i++, rfd++) { | |
576 | rfd->rbd = I596_NULL; | |
577 | rfd->v_next = rfd+1; | |
578 | rfd->v_prev = rfd-1; | |
579 | rfd->b_next = WSWAPrfd(virt_to_bus(rfd+1)); | |
580 | rfd->cmd = CMD_FLEX; | |
581 | } | |
582 | lp->rfd_head = lp->rfds; | |
583 | lp->scb.rfd = WSWAPrfd(virt_to_bus(lp->rfds)); | |
584 | rfd = lp->rfds; | |
585 | rfd->rbd = lp->rbd_head; | |
586 | rfd->v_prev = lp->rfds + rx_ring_size - 1; | |
587 | rfd = lp->rfds + rx_ring_size - 1; | |
588 | rfd->v_next = lp->rfds; | |
589 | rfd->b_next = WSWAPrfd(virt_to_bus(lp->rfds)); | |
590 | rfd->cmd = CMD_EOL|CMD_FLEX; | |
1da177e4 | 591 | |
f1635304 | 592 | return 0; |
1da177e4 LT |
593 | } |
594 | ||
595 | ||
596 | static void rebuild_rx_bufs(struct net_device *dev) | |
597 | { | |
f3a216d1 | 598 | struct i596_private *lp = dev->ml_priv; |
1da177e4 LT |
599 | int i; |
600 | ||
601 | /* Ensure rx frame/buffer descriptors are tidy */ | |
602 | ||
603 | for (i = 0; i < rx_ring_size; i++) { | |
604 | lp->rfds[i].rbd = I596_NULL; | |
605 | lp->rfds[i].cmd = CMD_FLEX; | |
606 | } | |
607 | lp->rfds[rx_ring_size-1].cmd = CMD_EOL|CMD_FLEX; | |
608 | lp->rfd_head = lp->rfds; | |
609 | lp->scb.rfd = WSWAPrfd(virt_to_bus(lp->rfds)); | |
610 | lp->rbd_head = lp->rbds; | |
611 | lp->rfds[0].rbd = WSWAPrbd(virt_to_bus(lp->rbds)); | |
612 | } | |
613 | ||
614 | ||
615 | static int init_i596_mem(struct net_device *dev) | |
616 | { | |
f3a216d1 | 617 | struct i596_private *lp = dev->ml_priv; |
1da177e4 LT |
618 | unsigned long flags; |
619 | ||
620 | MPU_PORT(dev, PORT_RESET, NULL); | |
621 | ||
622 | udelay(100); /* Wait 100us - seems to help */ | |
623 | ||
624 | #if defined(ENABLE_MVME16x_NET) || defined(ENABLE_BVME6000_NET) | |
625 | #ifdef ENABLE_MVME16x_NET | |
626 | if (MACH_IS_MVME16x) { | |
627 | volatile unsigned char *pcc2 = (unsigned char *) 0xfff42000; | |
628 | ||
629 | /* Disable all ints for now */ | |
630 | pcc2[0x28] = 1; | |
631 | pcc2[0x2a] = 0x48; | |
632 | /* Following disables snooping. Snooping is not required | |
633 | * as we make appropriate use of non-cached pages for | |
634 | * shared data, and cache_push/cache_clear. | |
635 | */ | |
636 | pcc2[0x2b] = 0x08; | |
637 | } | |
638 | #endif | |
639 | #ifdef ENABLE_BVME6000_NET | |
640 | if (MACH_IS_BVME6000) { | |
641 | volatile unsigned char *ethirq = (unsigned char *) BVME_ETHIRQ_REG; | |
642 | ||
643 | *ethirq = 1; | |
644 | } | |
645 | #endif | |
646 | ||
647 | /* change the scp address */ | |
648 | ||
649 | MPU_PORT(dev, PORT_ALTSCP, (void *)virt_to_bus((void *)&lp->scp)); | |
650 | ||
1da177e4 LT |
651 | #endif |
652 | ||
653 | lp->last_cmd = jiffies; | |
654 | ||
655 | #ifdef ENABLE_MVME16x_NET | |
656 | if (MACH_IS_MVME16x) | |
657 | lp->scp.sysbus = 0x00000054; | |
658 | #endif | |
659 | #ifdef ENABLE_BVME6000_NET | |
660 | if (MACH_IS_BVME6000) | |
661 | lp->scp.sysbus = 0x0000004c; | |
662 | #endif | |
1da177e4 LT |
663 | |
664 | lp->scp.iscp = WSWAPiscp(virt_to_bus((void *)&lp->iscp)); | |
665 | lp->iscp.scb = WSWAPscb(virt_to_bus((void *)&lp->scb)); | |
666 | lp->iscp.stat = ISCP_BUSY; | |
667 | lp->cmd_backlog = 0; | |
668 | ||
669 | lp->cmd_head = lp->scb.cmd = I596_NULL; | |
670 | ||
671 | #ifdef ENABLE_BVME6000_NET | |
672 | if (MACH_IS_BVME6000) { | |
673 | lp->scb.t_on = 7 * 25; | |
674 | lp->scb.t_off = 1 * 25; | |
675 | } | |
676 | #endif | |
677 | ||
678 | DEB(DEB_INIT,printk(KERN_DEBUG "%s: starting i82596.\n", dev->name)); | |
679 | ||
1da177e4 LT |
680 | CA(dev); |
681 | ||
682 | if (wait_istat(dev,lp,1000,"initialization timed out")) | |
683 | goto failed; | |
684 | DEB(DEB_INIT,printk(KERN_DEBUG "%s: i82596 initialization successful\n", dev->name)); | |
685 | ||
686 | /* Ensure rx frame/buffer descriptors are tidy */ | |
687 | rebuild_rx_bufs(dev); | |
688 | lp->scb.command = 0; | |
689 | ||
690 | #ifdef ENABLE_MVME16x_NET | |
691 | if (MACH_IS_MVME16x) { | |
692 | volatile unsigned char *pcc2 = (unsigned char *) 0xfff42000; | |
693 | ||
694 | /* Enable ints, etc. now */ | |
695 | pcc2[0x2a] = 0x55; /* Edge sensitive */ | |
696 | pcc2[0x2b] = 0x15; | |
697 | } | |
698 | #endif | |
699 | #ifdef ENABLE_BVME6000_NET | |
700 | if (MACH_IS_BVME6000) { | |
701 | volatile unsigned char *ethirq = (unsigned char *) BVME_ETHIRQ_REG; | |
702 | ||
703 | *ethirq = 3; | |
704 | } | |
705 | #endif | |
706 | ||
707 | ||
708 | DEB(DEB_INIT,printk(KERN_DEBUG "%s: queuing CmdConfigure\n", dev->name)); | |
709 | memcpy(lp->cf_cmd.i596_config, init_setup, 14); | |
710 | lp->cf_cmd.cmd.command = CmdConfigure; | |
711 | i596_add_cmd(dev, &lp->cf_cmd.cmd); | |
712 | ||
713 | DEB(DEB_INIT,printk(KERN_DEBUG "%s: queuing CmdSASetup\n", dev->name)); | |
d458cdf7 | 714 | memcpy(lp->sa_cmd.eth_addr, dev->dev_addr, ETH_ALEN); |
1da177e4 LT |
715 | lp->sa_cmd.cmd.command = CmdSASetup; |
716 | i596_add_cmd(dev, &lp->sa_cmd.cmd); | |
717 | ||
718 | DEB(DEB_INIT,printk(KERN_DEBUG "%s: queuing CmdTDR\n", dev->name)); | |
719 | lp->tdr_cmd.cmd.command = CmdTDR; | |
720 | i596_add_cmd(dev, &lp->tdr_cmd.cmd); | |
721 | ||
722 | spin_lock_irqsave (&lp->lock, flags); | |
723 | ||
724 | if (wait_cmd(dev,lp,1000,"timed out waiting to issue RX_START")) { | |
725 | spin_unlock_irqrestore (&lp->lock, flags); | |
726 | goto failed; | |
727 | } | |
728 | DEB(DEB_INIT,printk(KERN_DEBUG "%s: Issuing RX_START\n", dev->name)); | |
729 | lp->scb.command = RX_START; | |
730 | CA(dev); | |
731 | ||
732 | spin_unlock_irqrestore (&lp->lock, flags); | |
733 | ||
734 | if (wait_cmd(dev,lp,1000,"RX_START not processed")) | |
735 | goto failed; | |
736 | DEB(DEB_INIT,printk(KERN_DEBUG "%s: Receive unit started OK\n", dev->name)); | |
737 | return 0; | |
738 | ||
739 | failed: | |
740 | printk(KERN_CRIT "%s: Failed to initialise 82596\n", dev->name); | |
741 | MPU_PORT(dev, PORT_RESET, NULL); | |
742 | return -1; | |
743 | } | |
744 | ||
745 | static inline int i596_rx(struct net_device *dev) | |
746 | { | |
f3a216d1 | 747 | struct i596_private *lp = dev->ml_priv; |
1da177e4 LT |
748 | struct i596_rfd *rfd; |
749 | struct i596_rbd *rbd; | |
750 | int frames = 0; | |
751 | ||
752 | DEB(DEB_RXFRAME,printk(KERN_DEBUG "i596_rx(), rfd_head %p, rbd_head %p\n", | |
753 | lp->rfd_head, lp->rbd_head)); | |
754 | ||
755 | rfd = lp->rfd_head; /* Ref next frame to check */ | |
756 | ||
757 | while ((rfd->stat) & STAT_C) { /* Loop while complete frames */ | |
758 | if (rfd->rbd == I596_NULL) | |
759 | rbd = I596_NULL; | |
760 | else if (rfd->rbd == lp->rbd_head->b_addr) | |
761 | rbd = lp->rbd_head; | |
762 | else { | |
763 | printk(KERN_CRIT "%s: rbd chain broken!\n", dev->name); | |
764 | /* XXX Now what? */ | |
765 | rbd = I596_NULL; | |
766 | } | |
767 | DEB(DEB_RXFRAME, printk(KERN_DEBUG " rfd %p, rfd.rbd %p, rfd.stat %04x\n", | |
768 | rfd, rfd->rbd, rfd->stat)); | |
6aa20a22 | 769 | |
1da177e4 LT |
770 | if (rbd != I596_NULL && ((rfd->stat) & STAT_OK)) { |
771 | /* a good frame */ | |
772 | int pkt_len = rbd->count & 0x3fff; | |
773 | struct sk_buff *skb = rbd->skb; | |
774 | int rx_in_place = 0; | |
775 | ||
776 | DEB(DEB_RXADDR,print_eth(rbd->v_data, "received")); | |
777 | frames++; | |
778 | ||
779 | /* Check if the packet is long enough to just accept | |
780 | * without copying to a properly sized skbuff. | |
781 | */ | |
782 | ||
783 | if (pkt_len > rx_copybreak) { | |
784 | struct sk_buff *newskb; | |
785 | ||
786 | /* Get fresh skbuff to replace filled one. */ | |
c056b734 | 787 | newskb = netdev_alloc_skb(dev, PKT_BUF_SZ); |
1da177e4 LT |
788 | if (newskb == NULL) { |
789 | skb = NULL; /* drop pkt */ | |
790 | goto memory_squeeze; | |
791 | } | |
792 | /* Pass up the skb already on the Rx ring. */ | |
793 | skb_put(skb, pkt_len); | |
794 | rx_in_place = 1; | |
795 | rbd->skb = newskb; | |
689be439 DM |
796 | rbd->v_data = newskb->data; |
797 | rbd->b_data = WSWAPchar(virt_to_bus(newskb->data)); | |
1da177e4 | 798 | #ifdef __mc68000__ |
689be439 | 799 | cache_clear(virt_to_phys(newskb->data), PKT_BUF_SZ); |
1da177e4 | 800 | #endif |
720a43ef | 801 | } else { |
c056b734 | 802 | skb = netdev_alloc_skb(dev, pkt_len + 2); |
720a43ef | 803 | } |
1da177e4 LT |
804 | memory_squeeze: |
805 | if (skb == NULL) { | |
806 | /* XXX tulip.c can defer packets here!! */ | |
09f75cd7 | 807 | dev->stats.rx_dropped++; |
720a43ef | 808 | } else { |
1da177e4 LT |
809 | if (!rx_in_place) { |
810 | /* 16 byte align the data fields */ | |
811 | skb_reserve(skb, 2); | |
59ae1d12 JB |
812 | skb_put_data(skb, rbd->v_data, |
813 | pkt_len); | |
1da177e4 LT |
814 | } |
815 | skb->protocol=eth_type_trans(skb,dev); | |
816 | skb->len = pkt_len; | |
817 | #ifdef __mc68000__ | |
689be439 | 818 | cache_clear(virt_to_phys(rbd->skb->data), |
1da177e4 LT |
819 | pkt_len); |
820 | #endif | |
821 | netif_rx(skb); | |
09f75cd7 JG |
822 | dev->stats.rx_packets++; |
823 | dev->stats.rx_bytes+=pkt_len; | |
1da177e4 LT |
824 | } |
825 | } | |
826 | else { | |
827 | DEB(DEB_ERRORS, printk(KERN_DEBUG "%s: Error, rfd.stat = 0x%04x\n", | |
828 | dev->name, rfd->stat)); | |
09f75cd7 | 829 | dev->stats.rx_errors++; |
1da177e4 | 830 | if ((rfd->stat) & 0x0001) |
09f75cd7 | 831 | dev->stats.collisions++; |
1da177e4 | 832 | if ((rfd->stat) & 0x0080) |
09f75cd7 | 833 | dev->stats.rx_length_errors++; |
1da177e4 | 834 | if ((rfd->stat) & 0x0100) |
09f75cd7 | 835 | dev->stats.rx_over_errors++; |
1da177e4 | 836 | if ((rfd->stat) & 0x0200) |
09f75cd7 | 837 | dev->stats.rx_fifo_errors++; |
1da177e4 | 838 | if ((rfd->stat) & 0x0400) |
09f75cd7 | 839 | dev->stats.rx_frame_errors++; |
1da177e4 | 840 | if ((rfd->stat) & 0x0800) |
09f75cd7 | 841 | dev->stats.rx_crc_errors++; |
1da177e4 | 842 | if ((rfd->stat) & 0x1000) |
09f75cd7 | 843 | dev->stats.rx_length_errors++; |
1da177e4 LT |
844 | } |
845 | ||
846 | /* Clear the buffer descriptor count and EOF + F flags */ | |
847 | ||
848 | if (rbd != I596_NULL && (rbd->count & 0x4000)) { | |
849 | rbd->count = 0; | |
850 | lp->rbd_head = rbd->v_next; | |
851 | } | |
852 | ||
853 | /* Tidy the frame descriptor, marking it as end of list */ | |
854 | ||
855 | rfd->rbd = I596_NULL; | |
856 | rfd->stat = 0; | |
857 | rfd->cmd = CMD_EOL|CMD_FLEX; | |
858 | rfd->count = 0; | |
859 | ||
860 | /* Remove end-of-list from old end descriptor */ | |
861 | ||
862 | rfd->v_prev->cmd = CMD_FLEX; | |
863 | ||
864 | /* Update record of next frame descriptor to process */ | |
865 | ||
866 | lp->scb.rfd = rfd->b_next; | |
867 | lp->rfd_head = rfd->v_next; | |
868 | rfd = lp->rfd_head; | |
869 | } | |
870 | ||
871 | DEB(DEB_RXFRAME,printk(KERN_DEBUG "frames %d\n", frames)); | |
872 | ||
873 | return 0; | |
874 | } | |
875 | ||
876 | ||
864fe05d | 877 | static void i596_cleanup_cmd(struct net_device *dev, struct i596_private *lp) |
1da177e4 LT |
878 | { |
879 | struct i596_cmd *ptr; | |
880 | ||
881 | while (lp->cmd_head != I596_NULL) { | |
882 | ptr = lp->cmd_head; | |
883 | lp->cmd_head = ptr->v_next; | |
884 | lp->cmd_backlog--; | |
885 | ||
886 | switch ((ptr->command) & 0x7) { | |
887 | case CmdTx: | |
888 | { | |
889 | struct tx_cmd *tx_cmd = (struct tx_cmd *) ptr; | |
890 | struct sk_buff *skb = tx_cmd->skb; | |
891 | ||
892 | dev_kfree_skb(skb); | |
893 | ||
09f75cd7 JG |
894 | dev->stats.tx_errors++; |
895 | dev->stats.tx_aborted_errors++; | |
1da177e4 LT |
896 | |
897 | ptr->v_next = ptr->b_next = I596_NULL; | |
898 | tx_cmd->cmd.command = 0; /* Mark as free */ | |
899 | break; | |
900 | } | |
901 | default: | |
902 | ptr->v_next = ptr->b_next = I596_NULL; | |
903 | } | |
904 | } | |
905 | ||
906 | wait_cmd(dev,lp,100,"i596_cleanup_cmd timed out"); | |
907 | lp->scb.cmd = I596_NULL; | |
908 | } | |
909 | ||
864fe05d AM |
910 | static void i596_reset(struct net_device *dev, struct i596_private *lp, |
911 | int ioaddr) | |
1da177e4 LT |
912 | { |
913 | unsigned long flags; | |
914 | ||
915 | DEB(DEB_RESET,printk(KERN_DEBUG "i596_reset\n")); | |
916 | ||
917 | spin_lock_irqsave (&lp->lock, flags); | |
918 | ||
919 | wait_cmd(dev,lp,100,"i596_reset timed out"); | |
920 | ||
921 | netif_stop_queue(dev); | |
922 | ||
923 | lp->scb.command = CUC_ABORT | RX_ABORT; | |
924 | CA(dev); | |
925 | ||
926 | /* wait for shutdown */ | |
927 | wait_cmd(dev,lp,1000,"i596_reset 2 timed out"); | |
928 | spin_unlock_irqrestore (&lp->lock, flags); | |
929 | ||
930 | i596_cleanup_cmd(dev,lp); | |
931 | i596_rx(dev); | |
932 | ||
933 | netif_start_queue(dev); | |
934 | init_i596_mem(dev); | |
935 | } | |
936 | ||
937 | static void i596_add_cmd(struct net_device *dev, struct i596_cmd *cmd) | |
938 | { | |
f3a216d1 | 939 | struct i596_private *lp = dev->ml_priv; |
1da177e4 LT |
940 | int ioaddr = dev->base_addr; |
941 | unsigned long flags; | |
942 | ||
943 | DEB(DEB_ADDCMD,printk(KERN_DEBUG "i596_add_cmd\n")); | |
944 | ||
945 | cmd->status = 0; | |
946 | cmd->command |= (CMD_EOL | CMD_INTR); | |
947 | cmd->v_next = cmd->b_next = I596_NULL; | |
948 | ||
949 | spin_lock_irqsave (&lp->lock, flags); | |
950 | ||
951 | if (lp->cmd_head != I596_NULL) { | |
952 | lp->cmd_tail->v_next = cmd; | |
953 | lp->cmd_tail->b_next = WSWAPcmd(virt_to_bus(&cmd->status)); | |
954 | } else { | |
955 | lp->cmd_head = cmd; | |
956 | wait_cmd(dev,lp,100,"i596_add_cmd timed out"); | |
957 | lp->scb.cmd = WSWAPcmd(virt_to_bus(&cmd->status)); | |
958 | lp->scb.command = CUC_START; | |
959 | CA(dev); | |
960 | } | |
961 | lp->cmd_tail = cmd; | |
962 | lp->cmd_backlog++; | |
963 | ||
964 | spin_unlock_irqrestore (&lp->lock, flags); | |
965 | ||
966 | if (lp->cmd_backlog > max_cmd_backlog) { | |
967 | unsigned long tickssofar = jiffies - lp->last_cmd; | |
968 | ||
969 | if (tickssofar < ticks_limit) | |
970 | return; | |
971 | ||
972 | printk(KERN_NOTICE "%s: command unit timed out, status resetting.\n", dev->name); | |
973 | ||
974 | i596_reset(dev, lp, ioaddr); | |
975 | } | |
976 | } | |
977 | ||
978 | static int i596_open(struct net_device *dev) | |
979 | { | |
980 | int res = 0; | |
981 | ||
982 | DEB(DEB_OPEN,printk(KERN_DEBUG "%s: i596_open() irq %d.\n", dev->name, dev->irq)); | |
983 | ||
984 | if (request_irq(dev->irq, i596_interrupt, 0, "i82596", dev)) { | |
985 | printk(KERN_ERR "%s: IRQ %d not free\n", dev->name, dev->irq); | |
986 | return -EAGAIN; | |
987 | } | |
988 | #ifdef ENABLE_MVME16x_NET | |
989 | if (MACH_IS_MVME16x) { | |
a607072b KV |
990 | if (request_irq(0x56, i596_error, 0, "i82596_error", dev)) { |
991 | res = -EAGAIN; | |
992 | goto err_irq_dev; | |
993 | } | |
1da177e4 LT |
994 | } |
995 | #endif | |
f1635304 | 996 | res = init_rx_bufs(dev); |
a607072b KV |
997 | if (res) |
998 | goto err_irq_56; | |
1da177e4 LT |
999 | |
1000 | netif_start_queue(dev); | |
1001 | ||
1da177e4 LT |
1002 | if (init_i596_mem(dev)) { |
1003 | res = -EAGAIN; | |
a607072b | 1004 | goto err_queue; |
1da177e4 LT |
1005 | } |
1006 | ||
a607072b KV |
1007 | return 0; |
1008 | ||
1009 | err_queue: | |
1010 | netif_stop_queue(dev); | |
1011 | remove_rx_bufs(dev); | |
1012 | err_irq_56: | |
1013 | #ifdef ENABLE_MVME16x_NET | |
1014 | free_irq(0x56, dev); | |
a607072b | 1015 | err_irq_dev: |
65395482 | 1016 | #endif |
a607072b KV |
1017 | free_irq(dev->irq, dev); |
1018 | ||
1da177e4 LT |
1019 | return res; |
1020 | } | |
1021 | ||
0290bd29 | 1022 | static void i596_tx_timeout (struct net_device *dev, unsigned int txqueue) |
1da177e4 | 1023 | { |
f3a216d1 | 1024 | struct i596_private *lp = dev->ml_priv; |
1da177e4 LT |
1025 | int ioaddr = dev->base_addr; |
1026 | ||
1027 | /* Transmitter timeout, serious problems. */ | |
1028 | DEB(DEB_ERRORS,printk(KERN_ERR "%s: transmit timed out, status resetting.\n", | |
1029 | dev->name)); | |
1030 | ||
09f75cd7 | 1031 | dev->stats.tx_errors++; |
1da177e4 LT |
1032 | |
1033 | /* Try to restart the adaptor */ | |
09f75cd7 | 1034 | if (lp->last_restart == dev->stats.tx_packets) { |
1da177e4 LT |
1035 | DEB(DEB_ERRORS,printk(KERN_ERR "Resetting board.\n")); |
1036 | /* Shutdown and restart */ | |
1037 | i596_reset (dev, lp, ioaddr); | |
1038 | } else { | |
1039 | /* Issue a channel attention signal */ | |
1040 | DEB(DEB_ERRORS,printk(KERN_ERR "Kicking board.\n")); | |
1041 | lp->scb.command = CUC_START | RX_START; | |
1042 | CA (dev); | |
09f75cd7 | 1043 | lp->last_restart = dev->stats.tx_packets; |
1da177e4 LT |
1044 | } |
1045 | ||
860e9538 | 1046 | netif_trans_update(dev); /* prevent tx timeout */ |
1da177e4 LT |
1047 | netif_wake_queue (dev); |
1048 | } | |
1049 | ||
61357325 | 1050 | static netdev_tx_t i596_start_xmit(struct sk_buff *skb, struct net_device *dev) |
1da177e4 | 1051 | { |
f3a216d1 | 1052 | struct i596_private *lp = dev->ml_priv; |
1da177e4 LT |
1053 | struct tx_cmd *tx_cmd; |
1054 | struct i596_tbd *tbd; | |
1055 | short length = skb->len; | |
1da177e4 | 1056 | |
9e8e83d1 AM |
1057 | DEB(DEB_STARTTX,printk(KERN_DEBUG "%s: i596_start_xmit(%x,%p) called\n", |
1058 | dev->name, skb->len, skb->data)); | |
1da177e4 LT |
1059 | |
1060 | if (skb->len < ETH_ZLEN) { | |
5b057c6b | 1061 | if (skb_padto(skb, ETH_ZLEN)) |
6ed10654 | 1062 | return NETDEV_TX_OK; |
1da177e4 LT |
1063 | length = ETH_ZLEN; |
1064 | } | |
1065 | netif_stop_queue(dev); | |
1066 | ||
1067 | tx_cmd = lp->tx_cmds + lp->next_tx_cmd; | |
1068 | tbd = lp->tbds + lp->next_tx_cmd; | |
1069 | ||
1070 | if (tx_cmd->cmd.command) { | |
1071 | printk(KERN_NOTICE "%s: xmit ring full, dropping packet.\n", | |
1072 | dev->name); | |
09f75cd7 | 1073 | dev->stats.tx_dropped++; |
1da177e4 LT |
1074 | |
1075 | dev_kfree_skb(skb); | |
1076 | } else { | |
1077 | if (++lp->next_tx_cmd == TX_RING_SIZE) | |
1078 | lp->next_tx_cmd = 0; | |
1079 | tx_cmd->tbd = WSWAPtbd(virt_to_bus(tbd)); | |
1080 | tbd->next = I596_NULL; | |
1081 | ||
1082 | tx_cmd->cmd.command = CMD_FLEX | CmdTx; | |
1083 | tx_cmd->skb = skb; | |
1084 | ||
1085 | tx_cmd->pad = 0; | |
1086 | tx_cmd->size = 0; | |
1087 | tbd->pad = 0; | |
1088 | tbd->size = EOF | length; | |
1089 | ||
1090 | tbd->data = WSWAPchar(virt_to_bus(skb->data)); | |
1091 | ||
1092 | #ifdef __mc68000__ | |
1093 | cache_push(virt_to_phys(skb->data), length); | |
1094 | #endif | |
1095 | DEB(DEB_TXADDR,print_eth(skb->data, "tx-queued")); | |
1096 | i596_add_cmd(dev, &tx_cmd->cmd); | |
1097 | ||
09f75cd7 JG |
1098 | dev->stats.tx_packets++; |
1099 | dev->stats.tx_bytes += length; | |
1da177e4 LT |
1100 | } |
1101 | ||
1102 | netif_start_queue(dev); | |
1103 | ||
6ed10654 | 1104 | return NETDEV_TX_OK; |
1da177e4 LT |
1105 | } |
1106 | ||
1107 | static void print_eth(unsigned char *add, char *str) | |
1108 | { | |
e174961c JB |
1109 | printk(KERN_DEBUG "i596 0x%p, %pM --> %pM %02X%02X, %s\n", |
1110 | add, add + 6, add, add[12], add[13], str); | |
1da177e4 LT |
1111 | } |
1112 | ||
1113 | static int io = 0x300; | |
1114 | static int irq = 10; | |
1115 | ||
ba270ede SH |
1116 | static const struct net_device_ops i596_netdev_ops = { |
1117 | .ndo_open = i596_open, | |
1118 | .ndo_stop = i596_close, | |
1119 | .ndo_start_xmit = i596_start_xmit, | |
afc4b13d | 1120 | .ndo_set_rx_mode = set_multicast_list, |
ba270ede | 1121 | .ndo_tx_timeout = i596_tx_timeout, |
ba270ede SH |
1122 | .ndo_set_mac_address = eth_mac_addr, |
1123 | .ndo_validate_addr = eth_validate_addr, | |
1124 | }; | |
1125 | ||
1da177e4 LT |
1126 | struct net_device * __init i82596_probe(int unit) |
1127 | { | |
1128 | struct net_device *dev; | |
1129 | int i; | |
1130 | struct i596_private *lp; | |
1131 | char eth_addr[8]; | |
1132 | static int probed; | |
1133 | int err; | |
1134 | ||
1135 | if (probed) | |
1136 | return ERR_PTR(-ENODEV); | |
1137 | probed++; | |
1138 | ||
1139 | dev = alloc_etherdev(0); | |
1140 | if (!dev) | |
1141 | return ERR_PTR(-ENOMEM); | |
1142 | ||
1143 | if (unit >= 0) { | |
1144 | sprintf(dev->name, "eth%d", unit); | |
1145 | netdev_boot_setup_check(dev); | |
1146 | } else { | |
1147 | dev->base_addr = io; | |
1148 | dev->irq = irq; | |
1149 | } | |
1150 | ||
1151 | #ifdef ENABLE_MVME16x_NET | |
1152 | if (MACH_IS_MVME16x) { | |
1153 | if (mvme16x_config & MVME16x_CONFIG_NO_ETHERNET) { | |
1154 | printk(KERN_NOTICE "Ethernet probe disabled - chip not present\n"); | |
1155 | err = -ENODEV; | |
1156 | goto out; | |
1157 | } | |
d458cdf7 | 1158 | memcpy(eth_addr, (void *) 0xfffc1f2c, ETH_ALEN); /* YUCK! Get addr from NOVRAM */ |
1da177e4 LT |
1159 | dev->base_addr = MVME_I596_BASE; |
1160 | dev->irq = (unsigned) MVME16x_IRQ_I596; | |
0f734484 | 1161 | goto found; |
1da177e4 LT |
1162 | } |
1163 | #endif | |
1164 | #ifdef ENABLE_BVME6000_NET | |
1165 | if (MACH_IS_BVME6000) { | |
1166 | volatile unsigned char *rtc = (unsigned char *) BVME_RTC_BASE; | |
1167 | unsigned char msr = rtc[3]; | |
1168 | int i; | |
1169 | ||
1170 | rtc[3] |= 0x80; | |
1171 | for (i = 0; i < 6; i++) | |
1172 | eth_addr[i] = rtc[i * 4 + 7]; /* Stored in RTC RAM at offset 1 */ | |
1173 | rtc[3] = msr; | |
1174 | dev->base_addr = BVME_I596_BASE; | |
1175 | dev->irq = (unsigned) BVME_IRQ_I596; | |
0f734484 | 1176 | goto found; |
1da177e4 | 1177 | } |
1da177e4 | 1178 | #endif |
0f734484 GU |
1179 | err = -ENODEV; |
1180 | goto out; | |
1181 | ||
1182 | found: | |
1da177e4 LT |
1183 | dev->mem_start = (int)__get_free_pages(GFP_ATOMIC, 0); |
1184 | if (!dev->mem_start) { | |
1185 | err = -ENOMEM; | |
1186 | goto out1; | |
1187 | } | |
1188 | ||
1189 | DEB(DEB_PROBE,printk(KERN_INFO "%s: 82596 at %#3lx,", dev->name, dev->base_addr)); | |
1190 | ||
1191 | for (i = 0; i < 6; i++) | |
1192 | DEB(DEB_PROBE,printk(" %2.2X", dev->dev_addr[i] = eth_addr[i])); | |
1193 | ||
1194 | DEB(DEB_PROBE,printk(" IRQ %d.\n", dev->irq)); | |
1195 | ||
1196 | DEB(DEB_PROBE,printk(KERN_INFO "%s", version)); | |
1197 | ||
1198 | /* The 82596-specific entries in the device structure. */ | |
ba270ede | 1199 | dev->netdev_ops = &i596_netdev_ops; |
1da177e4 LT |
1200 | dev->watchdog_timeo = TX_TIMEOUT; |
1201 | ||
f3a216d1 | 1202 | dev->ml_priv = (void *)(dev->mem_start); |
1da177e4 | 1203 | |
f3a216d1 | 1204 | lp = dev->ml_priv; |
9e8e83d1 AM |
1205 | DEB(DEB_INIT,printk(KERN_DEBUG "%s: lp at 0x%08lx (%zd bytes), " |
1206 | "lp->scb at 0x%08lx\n", | |
1da177e4 LT |
1207 | dev->name, (unsigned long)lp, |
1208 | sizeof(struct i596_private), (unsigned long)&lp->scb)); | |
1209 | memset((void *) lp, 0, sizeof(struct i596_private)); | |
1210 | ||
1211 | #ifdef __mc68000__ | |
1212 | cache_push(virt_to_phys((void *)(dev->mem_start)), 4096); | |
1213 | cache_clear(virt_to_phys((void *)(dev->mem_start)), 4096); | |
1214 | kernel_set_cachemode((void *)(dev->mem_start), 4096, IOMAP_NOCACHE_SER); | |
1215 | #endif | |
1216 | lp->scb.command = 0; | |
1217 | lp->scb.cmd = I596_NULL; | |
1218 | lp->scb.rfd = I596_NULL; | |
1219 | spin_lock_init(&lp->lock); | |
1220 | ||
1221 | err = register_netdev(dev); | |
1222 | if (err) | |
1223 | goto out2; | |
1224 | return dev; | |
1225 | out2: | |
1226 | #ifdef __mc68000__ | |
1227 | /* XXX This assumes default cache mode to be IOMAP_FULL_CACHING, | |
1228 | * XXX which may be invalid (CONFIG_060_WRITETHROUGH) | |
1229 | */ | |
1230 | kernel_set_cachemode((void *)(dev->mem_start), 4096, | |
1231 | IOMAP_FULL_CACHING); | |
1232 | #endif | |
1233 | free_page ((u32)(dev->mem_start)); | |
1234 | out1: | |
1da177e4 LT |
1235 | out: |
1236 | free_netdev(dev); | |
1237 | return ERR_PTR(err); | |
1238 | } | |
1239 | ||
7d12e780 | 1240 | static irqreturn_t i596_interrupt(int irq, void *dev_id) |
1da177e4 LT |
1241 | { |
1242 | struct net_device *dev = dev_id; | |
1243 | struct i596_private *lp; | |
1244 | short ioaddr; | |
1245 | unsigned short status, ack_cmd = 0; | |
1246 | int handled = 0; | |
1247 | ||
1248 | #ifdef ENABLE_BVME6000_NET | |
1249 | if (MACH_IS_BVME6000) { | |
1250 | if (*(char *) BVME_LOCAL_IRQ_STAT & BVME_ETHERR) { | |
7d12e780 | 1251 | i596_error(irq, dev_id); |
1da177e4 LT |
1252 | return IRQ_HANDLED; |
1253 | } | |
1254 | } | |
1255 | #endif | |
1256 | if (dev == NULL) { | |
1257 | printk(KERN_ERR "i596_interrupt(): irq %d for unknown device.\n", irq); | |
1258 | return IRQ_NONE; | |
1259 | } | |
1260 | ||
1261 | ioaddr = dev->base_addr; | |
f3a216d1 | 1262 | lp = dev->ml_priv; |
1da177e4 LT |
1263 | |
1264 | spin_lock (&lp->lock); | |
1265 | ||
1266 | wait_cmd(dev,lp,100,"i596 interrupt, timeout"); | |
1267 | status = lp->scb.status; | |
1268 | ||
1269 | DEB(DEB_INTS,printk(KERN_DEBUG "%s: i596 interrupt, IRQ %d, status %4.4x.\n", | |
1270 | dev->name, irq, status)); | |
1271 | ||
1272 | ack_cmd = status & 0xf000; | |
1273 | ||
1274 | if ((status & 0x8000) || (status & 0x2000)) { | |
1275 | struct i596_cmd *ptr; | |
1276 | ||
1277 | handled = 1; | |
1278 | if ((status & 0x8000)) | |
1279 | DEB(DEB_INTS,printk(KERN_DEBUG "%s: i596 interrupt completed command.\n", dev->name)); | |
1280 | if ((status & 0x2000)) | |
1281 | DEB(DEB_INTS,printk(KERN_DEBUG "%s: i596 interrupt command unit inactive %x.\n", dev->name, status & 0x0700)); | |
1282 | ||
1283 | while ((lp->cmd_head != I596_NULL) && (lp->cmd_head->status & STAT_C)) { | |
1284 | ptr = lp->cmd_head; | |
1285 | ||
1286 | DEB(DEB_STATUS,printk(KERN_DEBUG "cmd_head->status = %04x, ->command = %04x\n", | |
1287 | lp->cmd_head->status, lp->cmd_head->command)); | |
1288 | lp->cmd_head = ptr->v_next; | |
1289 | lp->cmd_backlog--; | |
1290 | ||
1291 | switch ((ptr->command) & 0x7) { | |
1292 | case CmdTx: | |
1293 | { | |
1294 | struct tx_cmd *tx_cmd = (struct tx_cmd *) ptr; | |
1295 | struct sk_buff *skb = tx_cmd->skb; | |
1296 | ||
1297 | if ((ptr->status) & STAT_OK) { | |
1298 | DEB(DEB_TXADDR,print_eth(skb->data, "tx-done")); | |
1299 | } else { | |
09f75cd7 | 1300 | dev->stats.tx_errors++; |
1da177e4 | 1301 | if ((ptr->status) & 0x0020) |
09f75cd7 | 1302 | dev->stats.collisions++; |
1da177e4 | 1303 | if (!((ptr->status) & 0x0040)) |
09f75cd7 | 1304 | dev->stats.tx_heartbeat_errors++; |
1da177e4 | 1305 | if ((ptr->status) & 0x0400) |
09f75cd7 | 1306 | dev->stats.tx_carrier_errors++; |
1da177e4 | 1307 | if ((ptr->status) & 0x0800) |
09f75cd7 | 1308 | dev->stats.collisions++; |
1da177e4 | 1309 | if ((ptr->status) & 0x1000) |
09f75cd7 | 1310 | dev->stats.tx_aborted_errors++; |
1da177e4 LT |
1311 | } |
1312 | ||
ca899324 | 1313 | dev_consume_skb_irq(skb); |
1da177e4 LT |
1314 | |
1315 | tx_cmd->cmd.command = 0; /* Mark free */ | |
1316 | break; | |
1317 | } | |
1318 | case CmdTDR: | |
1319 | { | |
1320 | unsigned short status = ((struct tdr_cmd *)ptr)->status; | |
1321 | ||
1322 | if (status & 0x8000) { | |
1323 | DEB(DEB_TDR,printk(KERN_INFO "%s: link ok.\n", dev->name)); | |
1324 | } else { | |
1325 | if (status & 0x4000) | |
1326 | printk(KERN_ERR "%s: Transceiver problem.\n", dev->name); | |
1327 | if (status & 0x2000) | |
1328 | printk(KERN_ERR "%s: Termination problem.\n", dev->name); | |
1329 | if (status & 0x1000) | |
1330 | printk(KERN_ERR "%s: Short circuit.\n", dev->name); | |
1331 | ||
1332 | DEB(DEB_TDR,printk(KERN_INFO "%s: Time %d.\n", dev->name, status & 0x07ff)); | |
1333 | } | |
1334 | break; | |
1335 | } | |
1336 | case CmdConfigure: | |
1337 | case CmdMulticastList: | |
1338 | /* Zap command so set_multicast_list() knows it is free */ | |
1339 | ptr->command = 0; | |
1340 | break; | |
1341 | } | |
1342 | ptr->v_next = ptr->b_next = I596_NULL; | |
1343 | lp->last_cmd = jiffies; | |
1344 | } | |
1345 | ||
1346 | ptr = lp->cmd_head; | |
1347 | while ((ptr != I596_NULL) && (ptr != lp->cmd_tail)) { | |
1348 | ptr->command &= 0x1fff; | |
1349 | ptr = ptr->v_next; | |
1350 | } | |
1351 | ||
1352 | if ((lp->cmd_head != I596_NULL)) | |
1353 | ack_cmd |= CUC_START; | |
1354 | lp->scb.cmd = WSWAPcmd(virt_to_bus(&lp->cmd_head->status)); | |
1355 | } | |
1356 | if ((status & 0x1000) || (status & 0x4000)) { | |
1357 | if ((status & 0x4000)) | |
1358 | DEB(DEB_INTS,printk(KERN_DEBUG "%s: i596 interrupt received a frame.\n", dev->name)); | |
1359 | i596_rx(dev); | |
1360 | /* Only RX_START if stopped - RGH 07-07-96 */ | |
1361 | if (status & 0x1000) { | |
1362 | if (netif_running(dev)) { | |
1363 | DEB(DEB_ERRORS,printk(KERN_ERR "%s: i596 interrupt receive unit inactive, status 0x%x\n", dev->name, status)); | |
1364 | ack_cmd |= RX_START; | |
09f75cd7 JG |
1365 | dev->stats.rx_errors++; |
1366 | dev->stats.rx_fifo_errors++; | |
1da177e4 LT |
1367 | rebuild_rx_bufs(dev); |
1368 | } | |
1369 | } | |
1370 | } | |
1371 | wait_cmd(dev,lp,100,"i596 interrupt, timeout"); | |
1372 | lp->scb.command = ack_cmd; | |
1373 | ||
1374 | #ifdef ENABLE_MVME16x_NET | |
1375 | if (MACH_IS_MVME16x) { | |
1376 | /* Ack the interrupt */ | |
1377 | ||
1378 | volatile unsigned char *pcc2 = (unsigned char *) 0xfff42000; | |
1379 | ||
1380 | pcc2[0x2a] |= 0x08; | |
1381 | } | |
1382 | #endif | |
1383 | #ifdef ENABLE_BVME6000_NET | |
1384 | if (MACH_IS_BVME6000) { | |
1385 | volatile unsigned char *ethirq = (unsigned char *) BVME_ETHIRQ_REG; | |
1386 | ||
1387 | *ethirq = 1; | |
1388 | *ethirq = 3; | |
1389 | } | |
1da177e4 LT |
1390 | #endif |
1391 | CA(dev); | |
1392 | ||
1393 | DEB(DEB_INTS,printk(KERN_DEBUG "%s: exiting interrupt.\n", dev->name)); | |
1394 | ||
1395 | spin_unlock (&lp->lock); | |
1396 | return IRQ_RETVAL(handled); | |
1397 | } | |
1398 | ||
1399 | static int i596_close(struct net_device *dev) | |
1400 | { | |
f3a216d1 | 1401 | struct i596_private *lp = dev->ml_priv; |
1da177e4 LT |
1402 | unsigned long flags; |
1403 | ||
1404 | netif_stop_queue(dev); | |
1405 | ||
1406 | DEB(DEB_INIT,printk(KERN_DEBUG "%s: Shutting down ethercard, status was %4.4x.\n", | |
1407 | dev->name, lp->scb.status)); | |
1408 | ||
1409 | spin_lock_irqsave(&lp->lock, flags); | |
1410 | ||
1411 | wait_cmd(dev,lp,100,"close1 timed out"); | |
1412 | lp->scb.command = CUC_ABORT | RX_ABORT; | |
1413 | CA(dev); | |
1414 | ||
1415 | wait_cmd(dev,lp,100,"close2 timed out"); | |
1416 | ||
1417 | spin_unlock_irqrestore(&lp->lock, flags); | |
1418 | DEB(DEB_STRUCT,i596_display_data(dev)); | |
1419 | i596_cleanup_cmd(dev,lp); | |
1420 | ||
1421 | #ifdef ENABLE_MVME16x_NET | |
1422 | if (MACH_IS_MVME16x) { | |
1423 | volatile unsigned char *pcc2 = (unsigned char *) 0xfff42000; | |
1424 | ||
1425 | /* Disable all ints */ | |
1426 | pcc2[0x28] = 1; | |
1427 | pcc2[0x2a] = 0x40; | |
1428 | pcc2[0x2b] = 0x40; /* Set snooping bits now! */ | |
1429 | } | |
1430 | #endif | |
1431 | #ifdef ENABLE_BVME6000_NET | |
1432 | if (MACH_IS_BVME6000) { | |
1433 | volatile unsigned char *ethirq = (unsigned char *) BVME_ETHIRQ_REG; | |
1434 | ||
1435 | *ethirq = 1; | |
1436 | } | |
1437 | #endif | |
1438 | ||
a607072b KV |
1439 | #ifdef ENABLE_MVME16x_NET |
1440 | free_irq(0x56, dev); | |
1441 | #endif | |
1da177e4 LT |
1442 | free_irq(dev->irq, dev); |
1443 | remove_rx_bufs(dev); | |
1444 | ||
1445 | return 0; | |
1446 | } | |
1447 | ||
1da177e4 LT |
1448 | /* |
1449 | * Set or clear the multicast filter for this adaptor. | |
1450 | */ | |
1451 | ||
1452 | static void set_multicast_list(struct net_device *dev) | |
1453 | { | |
f3a216d1 | 1454 | struct i596_private *lp = dev->ml_priv; |
1da177e4 LT |
1455 | int config = 0, cnt; |
1456 | ||
1457 | DEB(DEB_MULTI,printk(KERN_DEBUG "%s: set multicast list, %d entries, promisc %s, allmulti %s\n", | |
4cd24eaf | 1458 | dev->name, netdev_mc_count(dev), |
1da177e4 LT |
1459 | dev->flags & IFF_PROMISC ? "ON" : "OFF", |
1460 | dev->flags & IFF_ALLMULTI ? "ON" : "OFF")); | |
1461 | ||
1462 | if (wait_cfg(dev, &lp->cf_cmd.cmd, 1000, "config change request timed out")) | |
1463 | return; | |
1464 | ||
1465 | if ((dev->flags & IFF_PROMISC) && !(lp->cf_cmd.i596_config[8] & 0x01)) { | |
1466 | lp->cf_cmd.i596_config[8] |= 0x01; | |
1467 | config = 1; | |
1468 | } | |
1469 | if (!(dev->flags & IFF_PROMISC) && (lp->cf_cmd.i596_config[8] & 0x01)) { | |
1470 | lp->cf_cmd.i596_config[8] &= ~0x01; | |
1471 | config = 1; | |
1472 | } | |
1473 | if ((dev->flags & IFF_ALLMULTI) && (lp->cf_cmd.i596_config[11] & 0x20)) { | |
1474 | lp->cf_cmd.i596_config[11] &= ~0x20; | |
1475 | config = 1; | |
1476 | } | |
1477 | if (!(dev->flags & IFF_ALLMULTI) && !(lp->cf_cmd.i596_config[11] & 0x20)) { | |
1478 | lp->cf_cmd.i596_config[11] |= 0x20; | |
1479 | config = 1; | |
1480 | } | |
1481 | if (config) { | |
1482 | lp->cf_cmd.cmd.command = CmdConfigure; | |
1483 | i596_add_cmd(dev, &lp->cf_cmd.cmd); | |
1484 | } | |
1485 | ||
4cd24eaf | 1486 | cnt = netdev_mc_count(dev); |
1da177e4 LT |
1487 | if (cnt > MAX_MC_CNT) |
1488 | { | |
1489 | cnt = MAX_MC_CNT; | |
1490 | printk(KERN_ERR "%s: Only %d multicast addresses supported", | |
1491 | dev->name, cnt); | |
1492 | } | |
6aa20a22 | 1493 | |
4cd24eaf | 1494 | if (!netdev_mc_empty(dev)) { |
22bedad3 | 1495 | struct netdev_hw_addr *ha; |
1da177e4 LT |
1496 | unsigned char *cp; |
1497 | struct mc_cmd *cmd; | |
1498 | ||
1499 | if (wait_cfg(dev, &lp->mc_cmd.cmd, 1000, "multicast list change request timed out")) | |
1500 | return; | |
1501 | cmd = &lp->mc_cmd; | |
1502 | cmd->cmd.command = CmdMulticastList; | |
0ddf477b | 1503 | cmd->mc_cnt = cnt * ETH_ALEN; |
1da177e4 | 1504 | cp = cmd->mc_addrs; |
22bedad3 | 1505 | netdev_for_each_mc_addr(ha, dev) { |
0ddf477b JP |
1506 | if (!cnt--) |
1507 | break; | |
22bedad3 | 1508 | memcpy(cp, ha->addr, ETH_ALEN); |
1da177e4 | 1509 | if (i596_debug > 1) |
e174961c JB |
1510 | DEB(DEB_MULTI,printk(KERN_INFO "%s: Adding address %pM\n", |
1511 | dev->name, cp)); | |
0ddf477b | 1512 | cp += ETH_ALEN; |
1da177e4 LT |
1513 | } |
1514 | i596_add_cmd(dev, &cmd->cmd); | |
1515 | } | |
1516 | } | |
1517 | ||
1518 | #ifdef MODULE | |
1519 | static struct net_device *dev_82596; | |
1520 | ||
1da177e4 LT |
1521 | static int debug = -1; |
1522 | module_param(debug, int, 0); | |
1523 | MODULE_PARM_DESC(debug, "i82596 debug mask"); | |
1524 | ||
864fe05d | 1525 | int __init init_module(void) |
1da177e4 LT |
1526 | { |
1527 | if (debug >= 0) | |
1528 | i596_debug = debug; | |
1529 | dev_82596 = i82596_probe(-1); | |
17102f8b | 1530 | return PTR_ERR_OR_ZERO(dev_82596); |
1da177e4 LT |
1531 | } |
1532 | ||
864fe05d | 1533 | void __exit cleanup_module(void) |
1da177e4 LT |
1534 | { |
1535 | unregister_netdev(dev_82596); | |
1536 | #ifdef __mc68000__ | |
1537 | /* XXX This assumes default cache mode to be IOMAP_FULL_CACHING, | |
1538 | * XXX which may be invalid (CONFIG_060_WRITETHROUGH) | |
1539 | */ | |
1540 | ||
1541 | kernel_set_cachemode((void *)(dev_82596->mem_start), 4096, | |
1542 | IOMAP_FULL_CACHING); | |
1543 | #endif | |
1544 | free_page ((u32)(dev_82596->mem_start)); | |
1da177e4 LT |
1545 | free_netdev(dev_82596); |
1546 | } | |
1547 | ||
1548 | #endif /* MODULE */ |