/[dynamips]/upstream/dynamips-0.2.6-RC3/dev_c2691.c
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Revision 4 - (hide annotations)
Sat Oct 6 16:06:49 2007 UTC (13 years, 9 months ago) by dpavlin
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File size: 35058 byte(s)
dynamips-0.2.6-RC3

1 dpavlin 4 /*
2     * Cisco 2691 simulation platform.
3     * Copyright (c) 2006 Christophe Fillot (cf@utc.fr)
4     *
5     * Generic Cisco 2691 routines and definitions (EEPROM,...).
6     */
7    
8     #include <stdio.h>
9     #include <stdlib.h>
10     #include <string.h>
11     #include <unistd.h>
12     #include <sys/types.h>
13     #include <assert.h>
14    
15     #include "mips64.h"
16     #include "dynamips.h"
17     #include "memory.h"
18     #include "device.h"
19     #include "pci_io.h"
20     #include "dev_gt.h"
21     #include "cisco_eeprom.h"
22     #include "dev_c2691.h"
23     #include "dev_vtty.h"
24     #include "registry.h"
25    
26     /* ======================================================================== */
27     /* EEPROM definitions */
28     /* ======================================================================== */
29    
30     /* Cisco 2691 mainboard EEPROM */
31     static m_uint16_t eeprom_c2691_mainboard_data[] = {
32     0x04FF, 0xC18B, 0x5858, 0x5858, 0x5858, 0x5858, 0x5858, 0x5809,
33     0x6640, 0x0258, 0xC046, 0x0320, 0x0025, 0x9002, 0x4246, 0x3085,
34     0x1C10, 0x8206, 0x80FF, 0xFFFF, 0xFFC4, 0x08FF, 0xFFFF, 0xFFFF,
35     0xFFFF, 0xFF81, 0xFFFF, 0xFFFF, 0x03FF, 0x04FF, 0xC28B, 0x5858,
36     0x5858, 0x5858, 0x5858, 0x5858, 0x58C3, 0x0600, 0x1280, 0xD387,
37     0xC043, 0x0020, 0xC508, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0x4100,
38     0x0101, 0x01FF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF,
39     0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF,
40     };
41    
42     struct cisco_eeprom eeprom_c2691_mainboard = {
43     "C2691 Backplane",
44     eeprom_c2691_mainboard_data,
45     sizeof(eeprom_c2691_mainboard_data)/2,
46     };
47    
48     /* ======================================================================== */
49     /* Network Module Drivers */
50     /* ======================================================================== */
51     static struct c2691_nm_driver *nm_drivers[] = {
52     &dev_c2691_nm_1fe_tx_driver,
53     &dev_c2691_nm_16esw_driver,
54     &dev_c2691_gt96100_fe_driver,
55     &dev_c2691_nm_4t_driver,
56     NULL,
57     };
58    
59     /* ======================================================================== */
60     /* Cisco 2691 router instances */
61     /* ======================================================================== */
62    
63     /* Directly extract the configuration from the NVRAM device */
64     ssize_t c2691_nvram_extract_config(vm_instance_t *vm,char **buffer)
65     {
66     u_char *base_ptr,*ios_ptr,*cfg_ptr,*end_ptr;
67     m_uint32_t start,nvlen;
68     m_uint16_t magic1,magic2;
69     struct vdevice *nvram_dev;
70     off_t nvram_size;
71     int fd;
72    
73     if ((nvram_dev = dev_get_by_name(vm,"rom")))
74     dev_sync(nvram_dev);
75    
76     fd = vm_mmap_open_file(vm,"rom",&base_ptr,&nvram_size);
77    
78     if (fd == -1)
79     return(-1);
80    
81     ios_ptr = base_ptr + C2691_NVRAM_OFFSET;
82     end_ptr = base_ptr + nvram_size;
83    
84     if ((ios_ptr + 0x30) >= end_ptr) {
85     vm_error(vm,"NVRAM file too small\n");
86     return(-1);
87     }
88    
89     magic1 = ntohs(*PTR_ADJUST(m_uint16_t *,ios_ptr,0x06));
90     magic2 = ntohs(*PTR_ADJUST(m_uint16_t *,ios_ptr,0x08));
91    
92     if ((magic1 != 0xF0A5) || (magic2 != 0xABCD)) {
93     vm_error(vm,"unable to find IOS magic numbers (0x%x,0x%x)!\n",
94     magic1,magic2);
95     return(-1);
96     }
97    
98     start = ntohl(*PTR_ADJUST(m_uint32_t *,ios_ptr,0x10)) + 1;
99     nvlen = ntohl(*PTR_ADJUST(m_uint32_t *,ios_ptr,0x18));
100    
101     if (!(*buffer = malloc(nvlen+1))) {
102     vm_error(vm,"unable to allocate config buffer (%u bytes)\n",nvlen);
103     return(-1);
104     }
105    
106     cfg_ptr = ios_ptr + start + 0x08;
107    
108     if ((cfg_ptr + nvlen) > end_ptr) {
109     vm_error(vm,"NVRAM file too small\n");
110     return(-1);
111     }
112    
113     memcpy(*buffer,cfg_ptr,nvlen-1);
114     (*buffer)[nvlen-1] = 0;
115     return(nvlen-1);
116     }
117    
118     static int c2691_nvram_push_config_part(vm_instance_t *vm,
119     char *buffer,size_t len,
120     u_char *ios_ptr)
121     {
122     m_uint32_t cfg_offset,cklen,tmp;
123     m_uint16_t cksum;
124     u_char *cfg_ptr;
125    
126     cfg_offset = 0x2c;
127     cfg_ptr = ios_ptr + cfg_offset;
128    
129     /* Write IOS tag, uncompressed config... */
130     *PTR_ADJUST(m_uint16_t *,ios_ptr,0x06) = htons(0xF0A5);
131     *PTR_ADJUST(m_uint16_t *,ios_ptr,0x08) = htons(0xABCD);
132     *PTR_ADJUST(m_uint16_t *,ios_ptr,0x0a) = htons(0x0001);
133     *PTR_ADJUST(m_uint16_t *,ios_ptr,0x0c) = htons(0x0000);
134     *PTR_ADJUST(m_uint16_t *,ios_ptr,0x0e) = htons(0x0c04);
135    
136     /* Store file contents to NVRAM */
137     memcpy(cfg_ptr,buffer,len);
138    
139     /* Write config addresses + size */
140     tmp = cfg_offset - 0x08;
141    
142     *PTR_ADJUST(m_uint32_t *,ios_ptr,0x10) = htonl(tmp);
143     *PTR_ADJUST(m_uint32_t *,ios_ptr,0x14) = htonl(tmp + len);
144     *PTR_ADJUST(m_uint32_t *,ios_ptr,0x18) = htonl(len);
145    
146     /* Compute the checksum */
147     cklen = C2691_NVRAM_SIZE - 0x08;
148     cksum = nvram_cksum((m_uint16_t *)(ios_ptr+0x08),cklen);
149     *PTR_ADJUST(m_uint16_t *,ios_ptr,0x0c) = htons(cksum);
150     return(0);
151     }
152    
153     /* Directly push the IOS configuration to the NVRAM device */
154     int c2691_nvram_push_config(vm_instance_t *vm,char *buffer,size_t len)
155     {
156     u_char *base_ptr,*ios_ptr;
157     int fd;
158    
159     fd = vm_mmap_create_file(vm,"rom",vm->rom_size*1048576,&base_ptr);
160    
161     if (fd == -1)
162     return(-1);
163    
164     ios_ptr = base_ptr + C2691_NVRAM_OFFSET;
165    
166     /* Normal config */
167     c2691_nvram_push_config_part(vm,buffer,len,ios_ptr);
168    
169     /* Backup config */
170     c2691_nvram_push_config_part(vm,buffer,len,ios_ptr + C2691_NVRAM_SIZE);
171    
172     vm_mmap_close_file(fd,base_ptr,vm->rom_size*1048576);
173     return(0);
174     }
175    
176     /* Check for empty config */
177     int c2691_nvram_check_empty_config(vm_instance_t *vm)
178     {
179     struct vdevice *rom_dev;
180     m_uint64_t addr;
181     size_t len;
182    
183     if (!(rom_dev = dev_get_by_name(vm,"rom")))
184     return(-1);
185    
186     addr = rom_dev->phys_addr + C2691_NVRAM_OFFSET;
187     len = C2691_NVRAM_SIZE;
188    
189     while(len > 0) {
190     if (physmem_copy_u32_from_vm(vm,addr) != 0)
191     return(0);
192    
193     addr += sizeof(m_uint32_t);
194     len -= sizeof(m_uint32_t);
195     }
196    
197     /* Empty NVRAM */
198     vm->conf_reg |= 0x0040;
199     printf("NVRAM is empty, setting config register to 0x%x\n",vm->conf_reg);
200     return(0);
201     }
202    
203     /* Create a new router instance */
204     c2691_t *c2691_create_instance(char *name,int instance_id)
205     {
206     c2691_t *router;
207    
208     if (!(router = malloc(sizeof(*router)))) {
209     fprintf(stderr,"C2691 '%s': Unable to create new instance!\n",name);
210     return NULL;
211     }
212    
213     memset(router,0,sizeof(*router));
214    
215     if (!(router->vm = vm_create(name,instance_id,VM_TYPE_C2691))) {
216     fprintf(stderr,"C2691 '%s': unable to create VM instance!\n",name);
217     goto err_vm;
218     }
219    
220     c2691_init_defaults(router);
221     router->vm->hw_data = router;
222     return router;
223    
224     err_vm:
225     free(router);
226     return NULL;
227     }
228    
229     /* Free resources used by a router instance */
230     static int c2691_free_instance(void *data,void *arg)
231     {
232     vm_instance_t *vm = data;
233     c2691_t *router;
234     int i;
235    
236     if (vm->type == VM_TYPE_C2691) {
237     router = VM_C2691(vm);
238    
239     /* Stop all CPUs */
240     if (vm->cpu_group != NULL) {
241     vm_stop(vm);
242    
243     if (cpu_group_sync_state(vm->cpu_group) == -1) {
244     vm_error(vm,"unable to sync with system CPUs.\n");
245     return(FALSE);
246     }
247     }
248    
249     /* Remove NIO bindings */
250     for(i=0;i<C2691_MAX_NM_BAYS;i++)
251     c2691_nm_remove_all_nio_bindings(router,i);
252    
253     /* Shutdown all Network Modules */
254     c2691_nm_shutdown_all(router);
255    
256     /* Free mainboard EEPROM */
257     cisco_eeprom_free(&router->mb_eeprom);
258    
259     /* Free all resources used by VM */
260     vm_free(vm);
261    
262     /* Free the router structure */
263     free(router);
264     return(TRUE);
265     }
266    
267     return(FALSE);
268     }
269    
270     /* Delete a router instance */
271     int c2691_delete_instance(char *name)
272     {
273     return(registry_delete_if_unused(name,OBJ_TYPE_VM,
274     c2691_free_instance,NULL));
275     }
276    
277     /* Delete all router instances */
278     int c2691_delete_all_instances(void)
279     {
280     return(registry_delete_type(OBJ_TYPE_VM,c2691_free_instance,NULL));
281     }
282    
283     /* Save configuration of a C2691 instance */
284     void c2691_save_config(c2691_t *router,FILE *fd)
285     {
286     vm_instance_t *vm = router->vm;
287     struct c2691_nio_binding *nb;
288     struct c2691_nm_bay *bay;
289     int i;
290    
291     /* General settings */
292     fprintf(fd,"c2691 create %s %u\n",vm->name,vm->instance_id);
293    
294     /* VM configuration */
295     vm_save_config(vm,fd);
296    
297     /* Network Module settings */
298     for(i=0;i<C2691_MAX_NM_BAYS;i++) {
299     if (!(bay = c2691_nm_get_info(router,i)))
300     continue;
301    
302     if (bay->dev_type) {
303     fprintf(fd,"c2691 add_nm_binding %s %u %s\n",
304     vm->name,i,bay->dev_type);
305     }
306    
307     for(nb=bay->nio_list;nb;nb=nb->next) {
308     fprintf(fd,"c2691 add_nio_binding %s %u %u %s\n",
309     vm->name,i,nb->port_id,nb->nio->name);
310     }
311     }
312    
313     fprintf(fd,"\n");
314     }
315    
316     /* Save configurations of all C2691 instances */
317     static void c2691_reg_save_config(registry_entry_t *entry,void *opt,int *err)
318     {
319     vm_instance_t *vm = entry->data;
320     c2691_t *router = VM_C2691(vm);
321    
322     if (vm->type == VM_TYPE_C2691)
323     c2691_save_config(router,(FILE *)opt);
324     }
325    
326     void c2691_save_config_all(FILE *fd)
327     {
328     registry_foreach_type(OBJ_TYPE_VM,c2691_reg_save_config,fd,NULL);
329     }
330    
331     /* Set NM EEPROM definition */
332     int c2691_nm_set_eeprom(c2691_t *router,u_int nm_bay,
333     const struct cisco_eeprom *eeprom)
334     {
335     if (nm_bay != 1) {
336     vm_error(router->vm,"c2691_nm_set_eeprom: invalid NM Bay %u.\n",nm_bay);
337     return(-1);
338     }
339    
340     if (cisco_eeprom_copy(&router->nm_bay[nm_bay].eeprom,eeprom) == -1) {
341     vm_error(router->vm,"c2691_nm_set_eeprom: no memory.\n");
342     return(-1);
343     }
344    
345     return(0);
346     }
347    
348     /* Unset NM EEPROM definition (empty bay) */
349     int c2691_nm_unset_eeprom(c2691_t *router,u_int nm_bay)
350     {
351     if (nm_bay != 1) {
352     vm_error(router->vm,"c2691_nm_set_eeprom: invalid NM Bay %u.\n",nm_bay);
353     return(-1);
354     }
355    
356     cisco_eeprom_free(&router->nm_bay[nm_bay].eeprom);
357     return(0);
358     }
359    
360     /* Check if a bay has a port adapter */
361     int c2691_nm_check_eeprom(c2691_t *router,u_int nm_bay)
362     {
363     if (nm_bay != 1)
364     return(FALSE);
365    
366     return(cisco_eeprom_valid(&router->nm_bay[nm_bay].eeprom));
367     }
368    
369     /* Get bay info */
370     struct c2691_nm_bay *c2691_nm_get_info(c2691_t *router,u_int nm_bay)
371     {
372     if (nm_bay >= C2691_MAX_NM_BAYS)
373     return NULL;
374    
375     return(&router->nm_bay[nm_bay]);
376     }
377    
378     /* Get NM type */
379     char *c2691_nm_get_type(c2691_t *router,u_int nm_bay)
380     {
381     struct c2691_nm_bay *bay;
382    
383     bay = c2691_nm_get_info(router,nm_bay);
384     return((bay != NULL) ? bay->dev_type : NULL);
385     }
386    
387     /* Get driver info about the specified slot */
388     void *c2691_nm_get_drvinfo(c2691_t *router,u_int nm_bay)
389     {
390     struct c2691_nm_bay *bay;
391    
392     bay = c2691_nm_get_info(router,nm_bay);
393     return((bay != NULL) ? bay->drv_info : NULL);
394     }
395    
396     /* Set driver info for the specified slot */
397     int c2691_nm_set_drvinfo(c2691_t *router,u_int nm_bay,void *drv_info)
398     {
399     struct c2691_nm_bay *bay;
400    
401     if (!(bay = c2691_nm_get_info(router,nm_bay)))
402     return(-1);
403    
404     bay->drv_info = drv_info;
405     return(0);
406     }
407    
408     /* Get a NM driver */
409     static struct c2691_nm_driver *c2691_nm_get_driver(char *dev_type)
410     {
411     int i;
412    
413     for(i=0;nm_drivers[i];i++)
414     if (!strcmp(nm_drivers[i]->dev_type,dev_type))
415     return nm_drivers[i];
416    
417     return NULL;
418     }
419    
420     /* Add a NM binding */
421     int c2691_nm_add_binding(c2691_t *router,char *dev_type,u_int nm_bay)
422     {
423     struct c2691_nm_driver *nm_driver;
424     struct c2691_nm_bay *bay;
425    
426     if (!(bay = c2691_nm_get_info(router,nm_bay)))
427     return(-1);
428    
429     /* check that this bay is empty */
430     if (bay->dev_type != NULL) {
431     vm_error(router->vm,"a NM already exists in slot %u.\n",nm_bay);
432     return(-1);
433     }
434    
435     /* find the NM driver */
436     if (!(nm_driver = c2691_nm_get_driver(dev_type))) {
437     vm_error(router->vm,"unknown NM type '%s'.\n",dev_type);
438     return(-1);
439     }
440    
441     bay->dev_type = nm_driver->dev_type;
442     bay->nm_driver = nm_driver;
443     return(0);
444     }
445    
446     /* Remove a NM binding */
447     int c2691_nm_remove_binding(c2691_t *router,u_int nm_bay)
448     {
449     struct c2691_nm_bay *bay;
450    
451     if (!(bay = c2691_nm_get_info(router,nm_bay)))
452     return(-1);
453    
454     /* stop if this bay is still active */
455     if (bay->drv_info != NULL) {
456     vm_error(router->vm,"slot %u still active.\n",nm_bay);
457     return(-1);
458     }
459    
460     /* check that this bay is not empty */
461     if (bay->dev_type == NULL) {
462     vm_error(router->vm,"slot %u is empty.\n",nm_bay);
463     return(-1);
464     }
465    
466     /* remove all NIOs bindings */
467     c2691_nm_remove_all_nio_bindings(router,nm_bay);
468    
469     bay->dev_type = NULL;
470     bay->nm_driver = NULL;
471     return(0);
472     }
473    
474     /* Find a NIO binding */
475     struct c2691_nio_binding *
476     c2691_nm_find_nio_binding(c2691_t *router,u_int nm_bay,u_int port_id)
477     {
478     struct c2691_nio_binding *nb;
479     struct c2691_nm_bay *bay;
480    
481     if (!(bay = c2691_nm_get_info(router,nm_bay)))
482     return NULL;
483    
484     for(nb=bay->nio_list;nb;nb=nb->next)
485     if (nb->port_id == port_id)
486     return nb;
487    
488     return NULL;
489     }
490    
491     /* Add a network IO binding */
492     int c2691_nm_add_nio_binding(c2691_t *router,u_int nm_bay,u_int port_id,
493     char *nio_name)
494     {
495     struct c2691_nio_binding *nb;
496     struct c2691_nm_bay *bay;
497     netio_desc_t *nio;
498    
499     if (!(bay = c2691_nm_get_info(router,nm_bay)))
500     return(-1);
501    
502     /* check that a NIO is not already bound to this port */
503     if (c2691_nm_find_nio_binding(router,nm_bay,port_id) != NULL) {
504     vm_error(router->vm,"a NIO already exists for interface %u/%u.\n",
505     nm_bay,port_id);
506     return(-1);
507     }
508    
509     /* acquire a reference on the NIO object */
510     if (!(nio = netio_acquire(nio_name))) {
511     vm_error(router->vm,"unable to find NIO '%s'.\n",nio_name);
512     return(-1);
513     }
514    
515     /* create a new binding */
516     if (!(nb = malloc(sizeof(*nb)))) {
517     vm_error(router->vm,"unable to create NIO binding "
518     "for interface %u/%u.\n",nm_bay,port_id);
519     netio_release(nio_name);
520     return(-1);
521     }
522    
523     memset(nb,0,sizeof(*nb));
524     nb->nio = nio;
525     nb->port_id = port_id;
526     nb->next = bay->nio_list;
527     if (nb->next) nb->next->prev = nb;
528     bay->nio_list = nb;
529     return(0);
530     }
531    
532     /* Remove a NIO binding */
533     int c2691_nm_remove_nio_binding(c2691_t *router,u_int nm_bay,u_int port_id)
534     {
535     struct c2691_nio_binding *nb;
536     struct c2691_nm_bay *bay;
537    
538     if (!(bay = c2691_nm_get_info(router,nm_bay)))
539     return(-1);
540    
541     if (!(nb = c2691_nm_find_nio_binding(router,nm_bay,port_id)))
542     return(-1); /* no nio binding for this slot/port */
543    
544     /* tell the NM driver to stop using this NIO */
545     if (bay->nm_driver)
546     bay->nm_driver->nm_unset_nio(router,nm_bay,port_id);
547    
548     /* remove this entry from the double linked list */
549     if (nb->next)
550     nb->next->prev = nb->prev;
551    
552     if (nb->prev) {
553     nb->prev->next = nb->next;
554     } else {
555     bay->nio_list = nb->next;
556     }
557    
558     /* unreference NIO object */
559     netio_release(nb->nio->name);
560     free(nb);
561     return(0);
562     }
563    
564     /* Remove all NIO bindings for the specified NM */
565     int c2691_nm_remove_all_nio_bindings(c2691_t *router,u_int nm_bay)
566     {
567     struct c2691_nio_binding *nb,*next;
568     struct c2691_nm_bay *bay;
569    
570     if (!(bay = c2691_nm_get_info(router,nm_bay)))
571     return(-1);
572    
573     for(nb=bay->nio_list;nb;nb=next) {
574     next = nb->next;
575    
576     /* tell the NM driver to stop using this NIO */
577     if (bay->nm_driver)
578     bay->nm_driver->nm_unset_nio(router,nm_bay,nb->port_id);
579    
580     /* unreference NIO object */
581     netio_release(nb->nio->name);
582     free(nb);
583     }
584    
585     bay->nio_list = NULL;
586     return(0);
587     }
588    
589     /* Enable a Network IO descriptor for a Network Module */
590     int c2691_nm_enable_nio(c2691_t *router,u_int nm_bay,u_int port_id)
591     {
592     struct c2691_nio_binding *nb;
593     struct c2691_nm_bay *bay;
594    
595     if (!(bay = c2691_nm_get_info(router,nm_bay)))
596     return(-1);
597    
598     /* check that we have an NIO binding for this interface */
599     if (!(nb = c2691_nm_find_nio_binding(router,nm_bay,port_id)))
600     return(-1);
601    
602     /* check that the driver is defined and successfully initialized */
603     if (!bay->nm_driver || !bay->drv_info)
604     return(-1);
605    
606     return(bay->nm_driver->nm_set_nio(router,nm_bay,port_id,nb->nio));
607     }
608    
609     /* Disable Network IO descriptor of a Network Module */
610     int c2691_nm_disable_nio(c2691_t *router,u_int nm_bay,u_int port_id)
611     {
612     struct c2691_nm_bay *bay;
613    
614     if (!(bay = c2691_nm_get_info(router,nm_bay)))
615     return(-1);
616    
617     /* check that the driver is defined and successfully initialized */
618     if (!bay->nm_driver || !bay->drv_info)
619     return(-1);
620    
621     return(bay->nm_driver->nm_unset_nio(router,nm_bay,port_id));
622     }
623    
624     /* Enable all NIO of the specified NM */
625     int c2691_nm_enable_all_nio(c2691_t *router,u_int nm_bay)
626     {
627     struct c2691_nio_binding *nb;
628     struct c2691_nm_bay *bay;
629    
630     if (!(bay = c2691_nm_get_info(router,nm_bay)))
631     return(-1);
632    
633     /* check that the driver is defined and successfully initialized */
634     if (!bay->nm_driver || !bay->drv_info)
635     return(-1);
636    
637     for(nb=bay->nio_list;nb;nb=nb->next)
638     bay->nm_driver->nm_set_nio(router,nm_bay,nb->port_id,nb->nio);
639    
640     return(0);
641     }
642    
643     /* Disable all NIO of the specified NM */
644     int c2691_nm_disable_all_nio(c2691_t *router,u_int nm_bay)
645     {
646     struct c2691_nio_binding *nb;
647     struct c2691_nm_bay *bay;
648    
649     if (!(bay = c2691_nm_get_info(router,nm_bay)))
650     return(-1);
651    
652     /* check that the driver is defined and successfully initialized */
653     if (!bay->nm_driver || !bay->drv_info)
654     return(-1);
655    
656     for(nb=bay->nio_list;nb;nb=nb->next)
657     bay->nm_driver->nm_unset_nio(router,nm_bay,nb->port_id);
658    
659     return(0);
660     }
661    
662     /* Initialize a Network Module */
663     int c2691_nm_init(c2691_t *router,u_int nm_bay)
664     {
665     struct c2691_nm_bay *bay;
666     size_t len;
667    
668     if (!(bay = c2691_nm_get_info(router,nm_bay)))
669     return(-1);
670    
671     /* Check that a device type is defined for this bay */
672     if (!bay->dev_type || !bay->nm_driver) {
673     vm_error(router->vm,"trying to init empty slot %u.\n",nm_bay);
674     return(-1);
675     }
676    
677     /* Allocate device name */
678     len = strlen(bay->dev_type) + 10;
679     if (!(bay->dev_name = malloc(len))) {
680     vm_error(router->vm,"unable to allocate device name.\n");
681     return(-1);
682     }
683    
684     snprintf(bay->dev_name,len,"%s(%u)",bay->dev_type,nm_bay);
685    
686     /* Initialize NM driver */
687     if (bay->nm_driver->nm_init(router,bay->dev_name,nm_bay) == 1) {
688     vm_error(router->vm,"unable to initialize NM %u.\n",nm_bay);
689     return(-1);
690     }
691    
692     /* Enable all NIO */
693     c2691_nm_enable_all_nio(router,nm_bay);
694     return(0);
695     }
696    
697     /* Shutdown a Network Module */
698     int c2691_nm_shutdown(c2691_t *router,u_int nm_bay)
699     {
700     struct c2691_nm_bay *bay;
701    
702     if (!(bay = c2691_nm_get_info(router,nm_bay)))
703     return(-1);
704    
705     /* Check that a device type is defined for this bay */
706     if (!bay->dev_type || !bay->nm_driver) {
707     vm_error(router->vm,"trying to shut down empty slot %u.\n",nm_bay);
708     return(-1);
709     }
710    
711     /* Disable all NIO */
712     c2691_nm_disable_all_nio(router,nm_bay);
713    
714     /* Shutdown the NM driver */
715     if (bay->drv_info && (bay->nm_driver->nm_shutdown(router,nm_bay) == -1)) {
716     vm_error(router->vm,"unable to shutdown NM %u.\n",nm_bay);
717     return(-1);
718     }
719    
720     free(bay->dev_name);
721     bay->dev_name = NULL;
722     bay->drv_info = NULL;
723     return(0);
724     }
725    
726     /* Shutdown all NM of a router */
727     int c2691_nm_shutdown_all(c2691_t *router)
728     {
729     int i;
730    
731     for(i=0;i<C2691_MAX_NM_BAYS;i++) {
732     if (!router->nm_bay[i].dev_type)
733     continue;
734    
735     c2691_nm_shutdown(router,i);
736     }
737    
738     return(0);
739     }
740    
741     /* Show info about all NMs */
742     int c2691_nm_show_all_info(c2691_t *router)
743     {
744     struct c2691_nm_bay *bay;
745     int i;
746    
747     for(i=0;i<C2691_MAX_NM_BAYS;i++) {
748     if (!(bay = c2691_nm_get_info(router,i)) || !bay->nm_driver)
749     continue;
750    
751     if (bay->nm_driver->nm_show_info != NULL)
752     bay->nm_driver->nm_show_info(router,i);
753     }
754    
755     return(0);
756     }
757    
758     /* Maximum number of tokens in a NM description */
759     #define NM_DESC_MAX_TOKENS 8
760    
761     /* Create a Network Module (command line) */
762     int c2691_cmd_nm_create(c2691_t *router,char *str)
763     {
764     char *tokens[NM_DESC_MAX_TOKENS];
765     int i,count,res;
766     u_int nm_bay;
767    
768     /* A port adapter description is like "1:NM-1FE" */
769     if ((count = m_strsplit(str,':',tokens,NM_DESC_MAX_TOKENS)) != 2) {
770     vm_error(router->vm,"unable to parse NM description '%s'.\n",str);
771     return(-1);
772     }
773    
774     /* Parse the NM bay id */
775     nm_bay = atoi(tokens[0]);
776    
777     /* Add this new NM to the current NM list */
778     res = c2691_nm_add_binding(router,tokens[1],nm_bay);
779    
780     /* The complete array was cleaned by strsplit */
781     for(i=0;i<NM_DESC_MAX_TOKENS;i++)
782     free(tokens[i]);
783    
784     return(res);
785     }
786    
787     /* Add a Network IO descriptor binding (command line) */
788     int c2691_cmd_add_nio(c2691_t *router,char *str)
789     {
790     char *tokens[NM_DESC_MAX_TOKENS];
791     int i,count,nio_type,res=-1;
792     u_int nm_bay,port_id;
793     netio_desc_t *nio;
794     char nio_name[128];
795    
796     /* A port adapter description is like "1:3:tap:tap0" */
797     if ((count = m_strsplit(str,':',tokens,NM_DESC_MAX_TOKENS)) < 3) {
798     vm_error(router->vm,"unable to parse NIO description '%s'.\n",str);
799     return(-1);
800     }
801    
802     /* Parse the NM bay */
803     nm_bay = atoi(tokens[0]);
804    
805     /* Parse the NM port id */
806     port_id = atoi(tokens[1]);
807    
808     /* Autogenerate a NIO name */
809     snprintf(nio_name,sizeof(nio_name),"c2691-i%u/%u/%u",
810     router->vm->instance_id,nm_bay,port_id);
811    
812     /* Create the Network IO descriptor */
813     nio = NULL;
814     nio_type = netio_get_type(tokens[2]);
815    
816     switch(nio_type) {
817     case NETIO_TYPE_UNIX:
818     if (count != 5) {
819     vm_error(router->vm,
820     "invalid number of arguments for UNIX NIO '%s'\n",str);
821     goto done;
822     }
823    
824     nio = netio_desc_create_unix(nio_name,tokens[3],tokens[4]);
825     break;
826    
827     case NETIO_TYPE_VDE:
828     if (count != 5) {
829     vm_error(router->vm,
830     "invalid number of arguments for VDE NIO '%s'\n",str);
831     goto done;
832     }
833    
834     nio = netio_desc_create_vde(nio_name,tokens[3],tokens[4]);
835     break;
836    
837     case NETIO_TYPE_TAP:
838     if (count != 4) {
839     vm_error(router->vm,
840     "invalid number of arguments for TAP NIO '%s'\n",str);
841     goto done;
842     }
843    
844     nio = netio_desc_create_tap(nio_name,tokens[3]);
845     break;
846    
847     case NETIO_TYPE_UDP:
848     if (count != 6) {
849     vm_error(router->vm,
850     "invalid number of arguments for UDP NIO '%s'\n",str);
851     goto done;
852     }
853    
854     nio = netio_desc_create_udp(nio_name,atoi(tokens[3]),
855     tokens[4],atoi(tokens[5]));
856     break;
857    
858     case NETIO_TYPE_TCP_CLI:
859     if (count != 5) {
860     vm_error(router->vm,
861     "invalid number of arguments for TCP CLI NIO '%s'\n",str);
862     goto done;
863     }
864    
865     nio = netio_desc_create_tcp_cli(nio_name,tokens[3],tokens[4]);
866     break;
867    
868     case NETIO_TYPE_TCP_SER:
869     if (count != 4) {
870     vm_error(router->vm,
871     "invalid number of arguments for TCP SER NIO '%s'\n",str);
872     goto done;
873     }
874    
875     nio = netio_desc_create_tcp_ser(nio_name,tokens[3]);
876     break;
877    
878     case NETIO_TYPE_NULL:
879     nio = netio_desc_create_null(nio_name);
880     break;
881    
882     #ifdef LINUX_ETH
883     case NETIO_TYPE_LINUX_ETH:
884     if (count != 4) {
885     vm_error(router->vm,
886     "invalid number of arguments for Linux Eth NIO '%s'\n",
887     str);
888     goto done;
889     }
890    
891     nio = netio_desc_create_lnxeth(nio_name,tokens[3]);
892     break;
893     #endif
894    
895     #ifdef GEN_ETH
896     case NETIO_TYPE_GEN_ETH:
897     if (count != 4) {
898     vm_error(router->vm,
899     "invalid number of arguments for Generic Eth NIO '%s'\n",
900     str);
901     goto done;
902     }
903    
904     nio = netio_desc_create_geneth(nio_name,tokens[3]);
905     break;
906     #endif
907    
908     default:
909     vm_error(router->vm,"unknown NETIO type '%s'\n",tokens[2]);
910     goto done;
911     }
912    
913     if (!nio) {
914     vm_error(router->vm,"unable to create NETIO "
915     "descriptor for NM slot %u\n",nm_bay);
916     goto done;
917     }
918    
919     if (c2691_nm_add_nio_binding(router,nm_bay,port_id,nio_name) == -1) {
920     vm_error(router->vm,"unable to add NETIO binding for slot %u\n",nm_bay);
921     netio_release(nio_name);
922     netio_delete(nio_name);
923     goto done;
924     }
925    
926     netio_release(nio_name);
927     res = 0;
928    
929     done:
930     /* The complete array was cleaned by strsplit */
931     for(i=0;i<NM_DESC_MAX_TOKENS;i++)
932     free(tokens[i]);
933    
934     return(res);
935     }
936    
937     /* Show the list of available NM drivers */
938     void c2691_nm_show_drivers(void)
939     {
940     int i;
941    
942     printf("Available C2691 Network Module drivers:\n");
943    
944     for(i=0;nm_drivers[i];i++) {
945     printf(" * %s %s\n",
946     nm_drivers[i]->dev_type,
947     !nm_drivers[i]->supported ? "(NOT WORKING)" : "");
948     }
949    
950     printf("\n");
951     }
952    
953     /* Set the base MAC address of the chassis */
954     static int c2691_burn_mac_addr(c2691_t *router,n_eth_addr_t *addr)
955     {
956     m_uint8_t eeprom_ver;
957     size_t offset;
958    
959     /* Read EEPROM format version */
960     cisco_eeprom_get_byte(&router->mb_eeprom,0,&eeprom_ver);
961    
962     switch(eeprom_ver) {
963     case 0:
964     cisco_eeprom_set_region(&router->mb_eeprom,2,addr->eth_addr_byte,6);
965     break;
966    
967     case 4:
968     if (!cisco_eeprom_v4_find_field(&router->mb_eeprom,0xC3,&offset)) {
969     cisco_eeprom_set_region(&router->mb_eeprom,offset,
970     addr->eth_addr_byte,6);
971     }
972     break;
973    
974     default:
975     vm_error(router->vm,"c2691_burn_mac_addr: unable to handle "
976     "EEPROM version %u\n",eeprom_ver);
977     return(-1);
978     }
979    
980     return(0);
981     }
982    
983     /* Set chassis MAC address */
984     int c2691_chassis_set_mac_addr(c2691_t *router,char *mac_addr)
985     {
986     if (parse_mac_addr(&router->mac_addr,mac_addr) == -1) {
987     vm_error(router->vm,"unable to parse MAC address '%s'.\n",mac_addr);
988     return(-1);
989     }
990    
991     /* Set the chassis base MAC address */
992     c2691_burn_mac_addr(router,&router->mac_addr);
993     return(0);
994     }
995    
996     /* Create the two main PCI busses for a GT64120 based system */
997     static int c2691_init_gt96100(c2691_t *router)
998     {
999     vm_instance_t *vm = router->vm;
1000    
1001     vm->pci_bus[0] = pci_bus_create("PCI bus #0",0);
1002     vm->pci_bus[1] = pci_bus_create("PCI bus #1",0);
1003    
1004     if (!vm->pci_bus[0] || !vm->pci_bus[1]) {
1005     vm_error(router->vm,"unable to create PCI data.\n");
1006     return(-1);
1007     }
1008    
1009     return(dev_gt96100_init(vm,"gt96100",C2691_GT96K_ADDR,0x200000,
1010     C2691_GT96K_IRQ,C2691_NETIO_IRQ));
1011     }
1012    
1013     /* Initialize a Cisco 2691 */
1014     static int c2691_init(c2691_t *router)
1015     {
1016     vm_instance_t *vm = router->vm;
1017    
1018     /* Set the processor type: R7000 */
1019     mips64_set_prid(vm->boot_cpu,MIPS_PRID_R7000);
1020    
1021     /* Initialize the Galileo GT-96100 PCI controller */
1022     if (c2691_init_gt96100(router) == -1)
1023     return(-1);
1024    
1025     /* Initialize PCI map (NM slot 1) */
1026     router->nm_bay[1].pci_map = vm->pci_bus[1];
1027    
1028     vm->elf_machine_id = C2691_ELF_MACHINE_ID;
1029     return(0);
1030     }
1031    
1032     /* Show C2691 hardware info */
1033     void c2691_show_hardware(c2691_t *router)
1034     {
1035     vm_instance_t *vm = router->vm;
1036    
1037     printf("C2691 instance '%s' (id %d):\n",vm->name,vm->instance_id);
1038    
1039     printf(" VM Status : %d\n",vm->status);
1040     printf(" RAM size : %u Mb\n",vm->ram_size);
1041     printf(" NVRAM size : %u Kb\n",vm->nvram_size);
1042     printf(" IOS image : %s\n\n",vm->ios_image);
1043    
1044     if (vm->debug_level > 0) {
1045     dev_show_list(vm);
1046     pci_dev_show_list(vm->pci_bus[0]);
1047     pci_dev_show_list(vm->pci_bus[1]);
1048     printf("\n");
1049     }
1050     }
1051    
1052     /* Initialize default parameters for a C2691 */
1053     void c2691_init_defaults(c2691_t *router)
1054     {
1055     vm_instance_t *vm = router->vm;
1056     n_eth_addr_t *m;
1057     m_uint16_t pid;
1058    
1059     pid = (m_uint16_t)getpid();
1060    
1061     /* Generate a chassis MAC address based on the instance ID */
1062     m = &router->mac_addr;
1063     m->eth_addr_byte[0] = vm_get_mac_addr_msb(vm);
1064     m->eth_addr_byte[1] = vm->instance_id & 0xFF;
1065     m->eth_addr_byte[2] = pid >> 8;
1066     m->eth_addr_byte[3] = pid & 0xFF;
1067     m->eth_addr_byte[4] = 0x00;
1068     m->eth_addr_byte[5] = 0x00;
1069    
1070     c2691_init_eeprom_groups(router);
1071     cisco_eeprom_copy(&router->mb_eeprom,&eeprom_c2691_mainboard);
1072     c2691_burn_mac_addr(router,&router->mac_addr);
1073    
1074     vm->ram_mmap = C2691_DEFAULT_RAM_MMAP;
1075     vm->ram_size = C2691_DEFAULT_RAM_SIZE;
1076     vm->rom_size = C2691_DEFAULT_ROM_SIZE;
1077     vm->nvram_size = C2691_DEFAULT_NVRAM_SIZE;
1078     vm->conf_reg_setup = C2691_DEFAULT_CONF_REG;
1079     vm->clock_divisor = C2691_DEFAULT_CLOCK_DIV;
1080     vm->nvram_rom_space = C2691_NVRAM_ROM_RES_SIZE;
1081     router->nm_iomem_size = C2691_DEFAULT_IOMEM_SIZE;
1082    
1083     vm->pcmcia_disk_size[0] = C2691_DEFAULT_DISK0_SIZE;
1084     vm->pcmcia_disk_size[1] = C2691_DEFAULT_DISK1_SIZE;
1085    
1086     /* Enable NVRAM operations to load/store configs */
1087     vm->nvram_extract_config = c2691_nvram_extract_config;
1088     vm->nvram_push_config = c2691_nvram_push_config;
1089     }
1090    
1091     /* Initialize the C2691 Platform */
1092     int c2691_init_platform(c2691_t *router)
1093     {
1094     extern m_uint8_t microcode[];
1095     extern ssize_t microcode_len;
1096     vm_instance_t *vm = router->vm;
1097     struct c2691_nm_bay *nm_bay;
1098     cpu_mips_t *cpu;
1099     vm_obj_t *obj;
1100     int i;
1101    
1102     /* Copy config register setup into "active" config register */
1103     vm->conf_reg = vm->conf_reg_setup;
1104    
1105     /* Create Console and AUX ports */
1106     vm_init_vtty(vm);
1107    
1108     /* Create a CPU group */
1109     vm->cpu_group = cpu_group_create("System CPU");
1110    
1111     /* Initialize the virtual MIPS processor */
1112     if (!(cpu = cpu_create(vm,0))) {
1113     vm_error(vm,"unable to create CPU!\n");
1114     return(-1);
1115     }
1116    
1117     /* Add this CPU to the system CPU group */
1118     cpu_group_add(vm->cpu_group,cpu);
1119     vm->boot_cpu = cpu;
1120    
1121     /* Mark the Network IO interrupt as high priority */
1122     cpu->irq_idle_preempt[C2691_NETIO_IRQ] = TRUE;
1123     cpu->irq_idle_preempt[C2691_GT96K_IRQ] = TRUE;
1124     cpu->irq_idle_preempt[C2691_DUART_IRQ] = TRUE;
1125    
1126     /* Copy some parameters from VM to CPU (idle PC, ...) */
1127     cpu->idle_pc = vm->idle_pc;
1128    
1129     if (vm->timer_irq_check_itv)
1130     cpu->timer_irq_check_itv = vm->timer_irq_check_itv;
1131    
1132     /* Remote emulator control */
1133     dev_remote_control_init(vm,0x16000000,0x1000);
1134    
1135     /* Specific Storage Area (SSA) */
1136     dev_ram_init(vm,"ssa",TRUE,FALSE,NULL,0x16001000ULL,0x7000);
1137    
1138     /* IO FPGA */
1139     if (dev_c2691_iofpga_init(router,C2691_IOFPGA_ADDR,0x40000) == -1)
1140     return(-1);
1141    
1142     #if 0
1143     /* PCI IO space */
1144     if (!(vm->pci_io_space = pci_io_data_init(vm,C2691_PCI_IO_ADDR)))
1145     return(-1);
1146     #endif
1147    
1148     /* Initialize the chassis */
1149     if (c2691_init(router) == -1)
1150     return(-1);
1151    
1152     /* Initialize RAM */
1153     vm_ram_init(vm,0x00000000ULL);
1154    
1155     /* Initialize ROM (as a Flash) */
1156     if (!(obj = dev_flash_init(vm,"rom",C2691_ROM_ADDR,vm->rom_size*1048576)))
1157     return(-1);
1158    
1159     dev_flash_copy_data(obj,0,microcode,microcode_len);
1160     c2691_nvram_check_empty_config(vm);
1161    
1162     /* Initialize the NS16552 DUART */
1163     dev_ns16552_init(vm,C2691_DUART_ADDR,0x1000,3,C2691_DUART_IRQ,
1164     vm->vtty_con,vm->vtty_aux);
1165    
1166     /* PCMCIA Slot 0 */
1167     dev_pcmcia_disk_init(vm,"slot0",C2691_SLOT0_ADDR,0x200000,
1168     vm->pcmcia_disk_size[0],1);
1169    
1170     /* PCMCIA Slot 1 */
1171     dev_pcmcia_disk_init(vm,"slot1",C2691_SLOT1_ADDR,0x200000,
1172     vm->pcmcia_disk_size[1],1);
1173    
1174     /* The GT96100 system controller has 2 integrated FastEthernet ports */
1175     c2691_nm_add_binding(router,"GT96100-FE",0);
1176    
1177     /* Initialize Network Modules */
1178     for(i=0;i<C2691_MAX_NM_BAYS;i++) {
1179     nm_bay = &router->nm_bay[i];
1180    
1181     if (!nm_bay->dev_type)
1182     continue;
1183    
1184     if (c2691_nm_init(router,i) == -1) {
1185     vm_error(vm,"unable to create Network Module \"%s\"\n",
1186     nm_bay->dev_type);
1187     return(-1);
1188     }
1189     }
1190    
1191     /* Show device list */
1192     c2691_show_hardware(router);
1193     return(0);
1194     }
1195    
1196     /* Boot the IOS image */
1197     int c2691_boot_ios(c2691_t *router)
1198     {
1199     vm_instance_t *vm = router->vm;
1200    
1201     if (!vm->boot_cpu)
1202     return(-1);
1203    
1204     /* Suspend CPU activity since we will restart directly from ROM */
1205     vm_suspend(vm);
1206    
1207     /* Check that CPU activity is really suspended */
1208     if (cpu_group_sync_state(vm->cpu_group) == -1) {
1209     vm_error(vm,"unable to sync with system CPUs.\n");
1210     return(-1);
1211     }
1212    
1213     /* Reset the boot CPU */
1214     mips64_reset(vm->boot_cpu);
1215    
1216     /* Load IOS image */
1217     if (mips64_load_elf_image(vm->boot_cpu,vm->ios_image,
1218     (vm->ghost_status == VM_GHOST_RAM_USE),
1219     &vm->ios_entry_point) < 0)
1220     {
1221     vm_error(vm,"failed to load Cisco IOS image '%s'.\n",vm->ios_image);
1222     return(-1);
1223     }
1224    
1225     /* Launch the simulation */
1226     printf("\nC2691 '%s': starting simulation (CPU0 PC=0x%llx), "
1227     "JIT %sabled.\n",
1228     vm->name,vm->boot_cpu->pc,vm->jit_use ? "en":"dis");
1229    
1230     vm_log(vm,"C2691_BOOT",
1231     "starting instance (CPU0 PC=0x%llx,idle_pc=0x%llx,JIT %s)\n",
1232     vm->boot_cpu->pc,vm->boot_cpu->idle_pc,vm->jit_use ? "on":"off");
1233    
1234     /* Start main CPU */
1235     if (vm->ghost_status != VM_GHOST_RAM_GENERATE) {
1236     vm->status = VM_STATUS_RUNNING;
1237     cpu_start(vm->boot_cpu);
1238     } else {
1239     vm->status = VM_STATUS_SHUTDOWN;
1240     }
1241     return(0);
1242     }
1243    
1244     /* Initialize a Cisco 2691 instance */
1245     int c2691_init_instance(c2691_t *router)
1246     {
1247     vm_instance_t *vm = router->vm;
1248     m_uint32_t rom_entry_point;
1249     cpu_mips_t *cpu0;
1250    
1251     if (!vm->ios_image) {
1252     vm_error(vm,"no Cisco IOS image defined.");
1253     return(-1);
1254     }
1255    
1256     /* Initialize the C2691 platform */
1257     if (c2691_init_platform(router) == -1) {
1258     vm_error(vm,"unable to initialize the platform hardware.\n");
1259     return(-1);
1260     }
1261    
1262     /* Load IOS configuration file */
1263     if (vm->ios_config != NULL) {
1264     vm_nvram_push_config(vm,vm->ios_config);
1265     vm->conf_reg &= ~0x40;
1266     }
1267    
1268     /* Load ROM (ELF image or embedded) */
1269     cpu0 = vm->boot_cpu;
1270     rom_entry_point = (m_uint32_t)MIPS_ROM_PC;
1271    
1272     if ((vm->rom_filename != NULL) &&
1273     (mips64_load_elf_image(cpu0,vm->rom_filename,0,&rom_entry_point) < 0))
1274     {
1275     vm_error(vm,"unable to load alternate ROM '%s', "
1276     "fallback to embedded ROM.\n\n",vm->rom_filename);
1277     vm->rom_filename = NULL;
1278     }
1279    
1280     /* Load symbol file */
1281     if (vm->sym_filename) {
1282     mips64_sym_load_file(cpu0,vm->sym_filename);
1283     cpu0->sym_trace = 1;
1284     }
1285    
1286     return(c2691_boot_ios(router));
1287     }
1288    
1289     /* Stop a Cisco 2691 instance */
1290     int c2691_stop_instance(c2691_t *router)
1291     {
1292     vm_instance_t *vm = router->vm;
1293    
1294     printf("\nC2691 '%s': stopping simulation.\n",vm->name);
1295     vm_log(vm,"C2691_STOP","stopping simulation.\n");
1296    
1297     /* Stop all CPUs */
1298     if (vm->cpu_group != NULL) {
1299     vm_stop(vm);
1300    
1301     if (cpu_group_sync_state(vm->cpu_group) == -1) {
1302     vm_error(vm,"unable to sync with system CPUs.\n");
1303     return(-1);
1304     }
1305     }
1306    
1307     /* Free resources that were used during execution to emulate hardware */
1308     c2691_nm_shutdown_all(router);
1309     vm_hardware_shutdown(vm);
1310     return(0);
1311     }

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