1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
10 # define offsetof(typ,memb) ((int)((char *)&(((typ *)0)->memb)))
13 #define LOWEST_BIT_SET(x) ((x) & ~((x) - 1))
18 extern unsigned int portal_subsystem_debug;
19 extern unsigned int portal_stack;
20 extern unsigned int portal_debug;
21 extern unsigned int portal_printk;
22 extern unsigned int portal_cerror;
23 /* Debugging subsystems (32 bits, non-overlapping) */
24 #define S_UNDEFINED (1 << 0)
25 #define S_MDC (1 << 1)
26 #define S_MDS (1 << 2)
27 #define S_OSC (1 << 3)
28 #define S_OST (1 << 4)
29 #define S_CLASS (1 << 5)
30 #define S_LOG (1 << 6)
31 #define S_LLITE (1 << 7)
32 #define S_RPC (1 << 8)
33 #define S_MGMT (1 << 9)
34 #define S_PORTALS (1 << 10)
35 #define S_SOCKNAL (1 << 11)
36 #define S_QSWNAL (1 << 12)
37 #define S_PINGER (1 << 13)
38 #define S_FILTER (1 << 14)
39 #define S_PTLBD (1 << 15)
40 #define S_ECHO (1 << 16)
41 #define S_LDLM (1 << 17)
42 #define S_LOV (1 << 18)
43 #define S_GMNAL (1 << 19)
44 #define S_PTLROUTER (1 << 20)
45 #define S_COBD (1 << 21)
46 #define S_IBNAL (1 << 22)
48 /* If you change these values, please keep portals/utils/debug.c
51 /* Debugging masks (32 bits, non-overlapping) */
52 #define D_TRACE (1 << 0) /* ENTRY/EXIT markers */
53 #define D_INODE (1 << 1)
54 #define D_SUPER (1 << 2)
55 #define D_EXT2 (1 << 3) /* anything from ext2_debug */
56 #define D_MALLOC (1 << 4) /* print malloc, free information */
57 #define D_CACHE (1 << 5) /* cache-related items */
58 #define D_INFO (1 << 6) /* general information */
59 #define D_IOCTL (1 << 7) /* ioctl related information */
60 #define D_BLOCKS (1 << 8) /* ext2 block allocation */
61 #define D_NET (1 << 9) /* network communications */
62 #define D_WARNING (1 << 10) /* CWARN(...) == CDEBUG (D_WARNING, ...) */
63 #define D_BUFFS (1 << 11)
64 #define D_OTHER (1 << 12)
65 #define D_DENTRY (1 << 13)
66 #define D_PORTALS (1 << 14) /* ENTRY/EXIT markers */
67 #define D_PAGE (1 << 15) /* bulk page handling */
68 #define D_DLMTRACE (1 << 16)
69 #define D_ERROR (1 << 17) /* CERROR(...) == CDEBUG (D_ERROR, ...) */
70 #define D_EMERG (1 << 18) /* CEMERG(...) == CDEBUG (D_EMERG, ...) */
71 #define D_HA (1 << 19) /* recovery and failover */
72 #define D_RPCTRACE (1 << 20) /* for distributed debugging */
73 #define D_VFSTRACE (1 << 21)
76 # include <linux/sched.h> /* THREAD_SIZE */
78 # ifndef THREAD_SIZE /* x86_64 has THREAD_SIZE in userspace */
79 # define THREAD_SIZE 8192
83 #define LUSTRE_TRACE_SIZE (THREAD_SIZE >> 5)
87 # define CDEBUG_STACK (THREAD_SIZE - \
88 ((unsigned long)__builtin_dwarf_cfa() & \
91 # define CDEBUG_STACK (THREAD_SIZE - \
92 ((unsigned long)__builtin_frame_address(0) & \
96 #define CHECK_STACK(stack) \
98 if ((stack) > 3*THREAD_SIZE/4 && (stack) > portal_stack) { \
99 portals_debug_msg(DEBUG_SUBSYSTEM, D_ERROR, \
100 __FILE__, __FUNCTION__, __LINE__, \
102 "maximum lustre stack %u\n", \
103 portal_stack = (stack)); \
107 #else /* __KERNEL__ */
108 #define CHECK_STACK(stack) do { } while(0)
109 #define CDEBUG_STACK (0L)
110 #endif /* __KERNEL__ */
113 #define CDEBUG(mask, format, a...) \
115 if (portal_cerror == 0) \
117 CHECK_STACK(CDEBUG_STACK); \
118 if (!(mask) || ((mask) & (D_ERROR | D_EMERG | D_WARNING)) || \
119 (portal_debug & (mask) && \
120 portal_subsystem_debug & DEBUG_SUBSYSTEM)) \
121 portals_debug_msg(DEBUG_SUBSYSTEM, mask, \
122 __FILE__, __FUNCTION__, __LINE__, \
123 CDEBUG_STACK, format, ## a); \
126 #define CWARN(format, a...) CDEBUG(D_WARNING, format, ## a)
127 #define CERROR(format, a...) CDEBUG(D_ERROR, format, ## a)
128 #define CEMERG(format, a...) CDEBUG(D_EMERG, format, ## a)
130 #define GOTO(label, rc) \
132 long GOTO__ret = (long)(rc); \
133 CDEBUG(D_TRACE,"Process leaving via %s (rc=%lu : %ld : %lx)\n", \
134 #label, (unsigned long)GOTO__ret, (signed long)GOTO__ret,\
135 (signed long)GOTO__ret); \
141 typeof(rc) RETURN__ret = (rc); \
142 CDEBUG(D_TRACE, "Process leaving (rc=%lu : %ld : %lx)\n", \
143 (long)RETURN__ret, (long)RETURN__ret, (long)RETURN__ret);\
144 return RETURN__ret; \
149 CDEBUG(D_TRACE, "Process entered\n"); \
154 CDEBUG(D_TRACE, "Process leaving\n"); \
157 #define CDEBUG(mask, format, a...) do { } while (0)
158 #define CWARN(format, a...) do { } while (0)
159 #define CERROR(format, a...) printk("<3>" format, ## a)
160 #define CEMERG(format, a...) printk("<0>" format, ## a)
161 #define GOTO(label, rc) do { (void)(rc); goto label; } while (0)
162 #define RETURN(rc) return (rc)
163 #define ENTRY do { } while (0)
164 #define EXIT do { } while (0)
168 # include <linux/vmalloc.h>
169 # include <linux/time.h>
170 # include <linux/slab.h>
171 # include <linux/interrupt.h>
172 # include <linux/highmem.h>
173 # include <linux/module.h>
174 # include <linux/version.h>
175 # include <portals/lib-nal.h>
176 # include <linux/smp_lock.h>
177 # include <asm/atomic.h>
179 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
180 #define schedule_work schedule_task
181 #define prepare_work(wq,cb,cbdata) \
183 INIT_TQUEUE((wq), 0, 0); \
184 PREPARE_TQUEUE((wq), (cb), (cbdata)); \
187 #define ll_invalidate_inode_pages invalidate_inode_pages
188 #define PageUptodate Page_Uptodate
189 #define our_recalc_sigpending(current) recalc_sigpending(current)
190 #define num_online_cpus() smp_num_cpus
191 static inline void our_cond_resched(void)
193 if (current->need_resched)
196 #define work_struct_t struct tq_struct
200 #define prepare_work(wq,cb,cbdata) \
202 INIT_WORK((wq), (void *)(cb), (void *)(cbdata)); \
204 #define ll_invalidate_inode_pages(inode) invalidate_inode_pages((inode)->i_mapping)
205 #define wait_on_page wait_on_page_locked
206 #define our_recalc_sigpending(current) recalc_sigpending()
207 #define strtok(a,b) strpbrk(a, b)
208 static inline void our_cond_resched(void)
212 #define work_struct_t struct work_struct
214 #endif /* LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0) */
217 extern void kportal_assertion_failed(char *expr, char *file, const char *func,
219 #define LASSERT(e) ((e) ? 0 : kportal_assertion_failed( #e , __FILE__, \
220 __FUNCTION__, __LINE__))
221 /* it would be great to dump_stack() here, but some kernels
222 * export it as show_stack() and I can't be bothered to
223 * proprely engage in that dance right now */
224 #define LASSERTF(cond, fmt...) \
226 if (unlikely(!(cond))) { \
227 portals_debug_msg(0, D_EMERG, __FILE__, __FUNCTION__,\
228 __LINE__, CDEBUG_STACK, \
229 "ASSERTION(" #cond ") failed:" fmt);\
236 #define LASSERTF(cond, fmt...) do { } while (0)
240 #define LBUG_WITH_LOC(file, func, line) \
242 CEMERG("LBUG - trying to dump log to /tmp/lustre-log\n"); \
243 portals_debug_dumplog(); \
244 portals_run_lbug_upcall(file, func, line); \
248 #define LBUG_WITH_LOC(file, func, line) \
251 portals_debug_dumplog(); \
252 portals_run_lbug_upcall(file, func, line); \
253 set_task_state(current, TASK_UNINTERRUPTIBLE); \
256 #endif /* __arch_um__ */
258 #define LBUG() LBUG_WITH_LOC(__FILE__, __FUNCTION__, __LINE__)
264 extern atomic_t portal_kmemory;
266 # define portal_kmem_inc(ptr, size) \
268 atomic_add(size, &portal_kmemory); \
271 # define portal_kmem_dec(ptr, size) do { \
272 atomic_sub(size, &portal_kmemory); \
276 # define portal_kmem_inc(ptr, size) do {} while (0)
277 # define portal_kmem_dec(ptr, size) do {} while (0)
278 #endif /* PORTAL_DEBUG */
280 #define PORTAL_VMALLOC_SIZE 16384
283 #define GFP_MEMALLOC 0
286 #define PORTAL_ALLOC_GFP(ptr, size, mask) \
288 LASSERT (!in_interrupt()); \
289 if ((size) > PORTAL_VMALLOC_SIZE) \
290 (ptr) = vmalloc(size); \
292 (ptr) = kmalloc((size), (mask)); \
293 if ((ptr) == NULL) { \
294 CERROR("PORTALS: out of memory at %s:%d (tried to alloc '"\
295 #ptr "' = %d)\n", __FILE__, __LINE__, (int)(size));\
296 CERROR("PORTALS: %d total bytes allocated by portals\n", \
297 atomic_read(&portal_kmemory)); \
299 portal_kmem_inc((ptr), (size)); \
300 memset((ptr), 0, (size)); \
302 CDEBUG(D_MALLOC, "kmalloced '" #ptr "': %d at %p (tot %d).\n", \
303 (int)(size), (ptr), atomic_read (&portal_kmemory)); \
306 #define PORTAL_ALLOC(ptr, size) \
307 PORTAL_ALLOC_GFP(ptr, size, (GFP_KERNEL | GFP_MEMALLOC))
309 #define PORTAL_ALLOC_ATOMIC(ptr, size) \
310 PORTAL_ALLOC_GFP(ptr, size, (GFP_ATOMIC | GFP_MEMALLOC))
312 #define PORTAL_FREE(ptr, size) \
315 if ((ptr) == NULL) { \
316 CERROR("PORTALS: free NULL '" #ptr "' (%d bytes) at " \
317 "%s:%d\n", s, __FILE__, __LINE__); \
320 if (s > PORTAL_VMALLOC_SIZE) \
324 portal_kmem_dec((ptr), s); \
325 CDEBUG(D_MALLOC, "kfreed '" #ptr "': %d at %p (tot %d).\n", \
326 s, (ptr), atomic_read(&portal_kmemory)); \
329 #ifndef SLAB_MEMALLOC
330 #define SLAB_MEMALLOC 0
333 #define PORTAL_SLAB_ALLOC(ptr, slab, size) \
335 LASSERT(!in_interrupt()); \
336 (ptr) = kmem_cache_alloc((slab), (SLAB_KERNEL | SLAB_MEMALLOC)); \
337 if ((ptr) == NULL) { \
338 CERROR("PORTALS: out of memory at %s:%d (tried to alloc" \
339 " '" #ptr "' from slab '" #slab "')\n", __FILE__, \
341 CERROR("PORTALS: %d total bytes allocated by portals\n", \
342 atomic_read(&portal_kmemory)); \
344 portal_kmem_inc((ptr), (size)); \
345 memset((ptr), 0, (size)); \
347 CDEBUG(D_MALLOC, "kmalloced '" #ptr "': %d at %p (tot %d).\n", \
348 (int)(size), (ptr), atomic_read(&portal_kmemory)); \
351 #define PORTAL_SLAB_FREE(ptr, slab, size) \
354 if ((ptr) == NULL) { \
355 CERROR("PORTALS: free NULL '" #ptr "' (%d bytes) at " \
356 "%s:%d\n", s, __FILE__, __LINE__); \
359 memset((ptr), 0x5a, s); \
360 kmem_cache_free((slab), ptr); \
361 portal_kmem_dec((ptr), s); \
362 CDEBUG(D_MALLOC, "kfreed '" #ptr "': %d at %p (tot %d).\n", \
363 s, (ptr), atomic_read (&portal_kmemory)); \
366 /* ------------------------------------------------------------------- */
368 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
370 #define PORTAL_SYMBOL_REGISTER(x) inter_module_register(#x, THIS_MODULE, &x)
371 #define PORTAL_SYMBOL_UNREGISTER(x) inter_module_unregister(#x)
373 #define PORTAL_SYMBOL_GET(x) ((typeof(&x))inter_module_get(#x))
374 #define PORTAL_SYMBOL_PUT(x) inter_module_put(#x)
376 #define PORTAL_MODULE_USE MOD_INC_USE_COUNT
377 #define PORTAL_MODULE_UNUSE MOD_DEC_USE_COUNT
380 #define PORTAL_SYMBOL_REGISTER(x)
381 #define PORTAL_SYMBOL_UNREGISTER(x)
383 #define PORTAL_SYMBOL_GET(x) symbol_get(x)
384 #define PORTAL_SYMBOL_PUT(x) symbol_put(x)
386 #define PORTAL_MODULE_USE try_module_get(THIS_MODULE)
387 #define PORTAL_MODULE_UNUSE module_put(THIS_MODULE)
391 /******************************************************************************/
392 /* Kernel Portals Router interface */
394 typedef void (*kpr_fwd_callback_t)(void *arg, int error); // completion callback
396 /* space for routing targets to stash "stuff" in a forwarded packet */
398 long long _alignment;
399 void *_space[16]; /* scale with CPU arch */
402 /* Kernel Portals Routing Forwarded message Descriptor */
404 struct list_head kprfd_list; /* stash in queues (routing target can use) */
405 ptl_nid_t kprfd_target_nid; /* final destination NID */
406 ptl_nid_t kprfd_gateway_nid; /* gateway NID */
407 int kprfd_nob; /* # message bytes (including header) */
408 int kprfd_niov; /* # message frags (including header) */
409 struct iovec *kprfd_iov; /* message fragments */
410 void *kprfd_router_arg; // originating NAL's router arg
411 kpr_fwd_callback_t kprfd_callback; /* completion callback */
412 void *kprfd_callback_arg; /* completion callback arg */
413 kprfd_scratch_t kprfd_scratch; // scratchpad for routing targets
416 typedef void (*kpr_fwd_t)(void *arg, kpr_fwd_desc_t *fwd);
417 typedef void (*kpr_notify_t)(void *arg, ptl_nid_t peer, int alive);
419 /* NAL's routing interface (Kernel Portals Routing Nal Interface) */
420 typedef const struct {
421 int kprni_nalid; /* NAL's id */
422 void *kprni_arg; /* Arg to pass when calling into NAL */
423 kpr_fwd_t kprni_fwd; /* NAL's forwarding entrypoint */
424 kpr_notify_t kprni_notify; /* NAL's notification entrypoint */
425 } kpr_nal_interface_t;
427 /* Router's routing interface (Kernel Portals Routing Router Interface) */
428 typedef const struct {
429 /* register the calling NAL with the router and get back the handle for
430 * subsequent calls */
431 int (*kprri_register) (kpr_nal_interface_t *nal_interface,
434 /* ask the router to find a gateway that forwards to 'nid' and is a
435 * peer of the calling NAL; assume caller will send 'nob' bytes of
437 int (*kprri_lookup) (void *router_arg, ptl_nid_t nid, int nob,
438 ptl_nid_t *gateway_nid);
440 /* hand a packet over to the router for forwarding */
441 kpr_fwd_t kprri_fwd_start;
443 /* hand a packet back to the router for completion */
444 void (*kprri_fwd_done) (void *router_arg, kpr_fwd_desc_t *fwd,
447 /* notify the router about peer state */
448 void (*kprri_notify) (void *router_arg, ptl_nid_t peer,
449 int alive, time_t when);
451 /* the calling NAL is shutting down */
452 void (*kprri_shutdown) (void *router_arg);
454 /* deregister the calling NAL with the router */
455 void (*kprri_deregister) (void *router_arg);
457 } kpr_router_interface_t;
459 /* Convenient struct for NAL to stash router interface/args */
461 kpr_router_interface_t *kpr_interface;
465 /* Router's control interface (Kernel Portals Routing Control Interface) */
466 typedef const struct {
467 int (*kprci_add_route)(int gateway_nal, ptl_nid_t gateway_nid,
468 ptl_nid_t lo_nid, ptl_nid_t hi_nid);
469 int (*kprci_del_route)(int gateway_nal, ptl_nid_t gateway_nid,
470 ptl_nid_t lo_nid, ptl_nid_t hi_nid);
471 int (*kprci_get_route)(int index, int *gateway_nal,
473 ptl_nid_t *lo_nid, ptl_nid_t *hi_nid,
475 int (*kprci_notify)(int gateway_nal, ptl_nid_t gateway_nid,
476 int alive, time_t when);
477 } kpr_control_interface_t;
479 extern kpr_control_interface_t kpr_control_interface;
480 extern kpr_router_interface_t kpr_router_interface;
483 kpr_register (kpr_router_t *router, kpr_nal_interface_t *nalif)
487 router->kpr_interface = PORTAL_SYMBOL_GET (kpr_router_interface);
488 if (router->kpr_interface == NULL)
491 rc = (router->kpr_interface)->kprri_register (nalif, &router->kpr_arg);
493 router->kpr_interface = NULL;
495 PORTAL_SYMBOL_PUT (kpr_router_interface);
500 kpr_routing (kpr_router_t *router)
502 return (router->kpr_interface != NULL);
506 kpr_lookup (kpr_router_t *router, ptl_nid_t nid, int nob, ptl_nid_t *gateway_nid)
508 if (!kpr_routing (router))
509 return (-ENETUNREACH);
511 return (router->kpr_interface->kprri_lookup(router->kpr_arg, nid, nob,
516 kpr_fwd_init (kpr_fwd_desc_t *fwd, ptl_nid_t nid,
517 int nob, int niov, struct iovec *iov,
518 kpr_fwd_callback_t callback, void *callback_arg)
520 fwd->kprfd_target_nid = nid;
521 fwd->kprfd_gateway_nid = nid;
522 fwd->kprfd_nob = nob;
523 fwd->kprfd_niov = niov;
524 fwd->kprfd_iov = iov;
525 fwd->kprfd_callback = callback;
526 fwd->kprfd_callback_arg = callback_arg;
530 kpr_fwd_start (kpr_router_t *router, kpr_fwd_desc_t *fwd)
532 if (!kpr_routing (router))
533 fwd->kprfd_callback (fwd->kprfd_callback_arg, -ENETUNREACH);
535 router->kpr_interface->kprri_fwd_start (router->kpr_arg, fwd);
539 kpr_fwd_done (kpr_router_t *router, kpr_fwd_desc_t *fwd, int error)
541 LASSERT (kpr_routing (router));
542 router->kpr_interface->kprri_fwd_done (router->kpr_arg, fwd, error);
546 kpr_notify (kpr_router_t *router,
547 ptl_nid_t peer, int alive, time_t when)
549 if (!kpr_routing (router))
552 router->kpr_interface->kprri_notify(router->kpr_arg, peer, alive, when);
556 kpr_shutdown (kpr_router_t *router)
558 if (kpr_routing (router))
559 router->kpr_interface->kprri_shutdown (router->kpr_arg);
563 kpr_deregister (kpr_router_t *router)
565 if (!kpr_routing (router))
567 router->kpr_interface->kprri_deregister (router->kpr_arg);
568 router->kpr_interface = NULL;
571 /******************************************************************************/
573 #ifdef PORTALS_PROFILING
574 #define prof_enum(FOO) PROF__##FOO
576 prof_enum(our_recvmsg),
577 prof_enum(our_sendmsg),
578 prof_enum(socknal_recv),
579 prof_enum(lib_parse),
580 prof_enum(conn_list_walk),
582 prof_enum(lib_finalize),
583 prof_enum(pingcli_time),
584 prof_enum(gmnal_send),
585 prof_enum(gmnal_recv),
591 /* hrmph. wrap-tastic. */
594 cycles_t total_cycles;
599 extern struct prof_ent prof_ents[MAX_PROFS];
601 #define PROF_START(FOO) \
603 struct prof_ent *pe = &prof_ents[PROF__##FOO]; \
605 pe->start = get_cycles(); \
608 #define PROF_FINISH(FOO) \
610 struct prof_ent *pe = &prof_ents[PROF__##FOO]; \
612 pe->end = get_cycles(); \
613 pe->total_cycles += (pe->end - pe->start); \
615 #else /* !PORTALS_PROFILING */
616 #define PROF_START(FOO) do {} while(0)
617 #define PROF_FINISH(FOO) do {} while(0)
618 #endif /* PORTALS_PROFILING */
621 extern spinlock_t stack_backtrace_lock;
623 char *portals_debug_dumpstack(void);
624 void portals_run_upcall(char **argv);
625 void portals_run_lbug_upcall(char * file, const char *fn, const int line);
626 void portals_debug_dumplog(void);
627 int portals_debug_init(unsigned long bufsize);
628 int portals_debug_cleanup(void);
629 int portals_debug_clear_buffer(void);
630 int portals_debug_mark_buffer(char *text);
631 int portals_debug_set_daemon(unsigned int cmd, unsigned int length,
632 char *file, unsigned int size);
633 __s32 portals_debug_copy_to_user(char *buf, unsigned long len);
635 /* Use the special GNU C __attribute__ hack to have the compiler check the
636 * printf style argument string against the actual argument count and
640 # warning printf has been defined as a macro...
643 void portals_debug_msg(int subsys, int mask, char *file, const char *fn,
644 const int line, unsigned long stack,
646 __attribute__ ((format (printf, 7, 8)));
648 void portals_debug_msg(int subsys, int mask, char *file, const char *fn,
649 const int line, unsigned long stack,
650 const char *format, ...);
651 #endif /* __GNUC__ */
652 void portals_debug_set_level(unsigned int debug_level);
654 # define fprintf(a, format, b...) CDEBUG(D_OTHER, format , ## b)
655 # define printf(format, b...) CDEBUG(D_OTHER, format , ## b)
656 # define time(a) CURRENT_TIME
658 extern void kportal_daemonize (char *name);
659 extern void kportal_blockallsigs (void);
661 #else /* !__KERNEL__ */
667 # include <cygwin-ioctl.h>
671 # include <asm/types.h>
672 # ifndef DEBUG_SUBSYSTEM
673 # define DEBUG_SUBSYSTEM S_UNDEFINED
678 # define LASSERT(e) assert(e)
679 # define LASSERTF(cond, args...) assert(cond)
682 # define LASSERTF(cond, args...) do { } while (0)
684 # define printk(format, args...) printf (format, ## args)
685 # define PORTAL_ALLOC(ptr, size) do { (ptr) = malloc(size); } while (0);
686 # define PORTAL_FREE(a, b) do { free(a); } while (0);
687 # define portals_debug_msg(subsys, mask, file, fn, line, stack, format, a...) \
688 printf("%02x:%06x (@%lu %s:%s,l. %d %d %lu): " format, \
689 (subsys), (mask), (long)time(0), file, fn, line, \
690 getpid() , stack, ## a);
693 /* support decl needed both by kernel and liblustre */
694 char *portals_nid2str(int nal, ptl_nid_t nid, char *str);
697 # define CURRENT_TIME time(0)
700 /******************************************************************************/
701 /* Light-weight trace
702 * Support for temporary event tracing with minimal Heisenberg effect. */
703 #define LWT_SUPPORT 0
705 #define LWT_MEMORY (64<<20)
706 #define LWT_MAX_CPUS 4
716 #if BITS_PER_LONG > 32
723 #define LWT_EVENTS_PER_PAGE (PAGE_SIZE / sizeof (lwt_event_t))
725 typedef struct _lwt_page {
726 struct list_head lwtp_list;
727 struct page *lwtp_page;
728 lwt_event_t *lwtp_events;
732 int lwtc_current_index;
733 lwt_page_t *lwtc_current_page;
736 extern int lwt_enabled;
737 extern lwt_cpu_t lwt_cpus[];
739 extern int lwt_init (void);
740 extern void lwt_fini (void);
741 extern int lwt_lookup_string (int *size, char *knlptr,
742 char *usrptr, int usrsize);
743 extern int lwt_control (int enable, int clear);
744 extern int lwt_snapshot (cycles_t *now, int *ncpu, int *total_size,
745 void *user_ptr, int user_size);
747 /* Note that we _don't_ define LWT_EVENT at all if LWT_SUPPORT isn't set.
748 * This stuff is meant for finding specific problems; it never stays in
749 * production code... */
752 #define LWTWHERE(f,l) f ":" LWTSTR(l)
754 #define LWT_EVENT(p1, p2, p3, p4) \
756 unsigned long flags; \
761 local_irq_save (flags); \
764 cpu = &lwt_cpus[smp_processor_id()]; \
765 p = cpu->lwtc_current_page; \
766 e = &p->lwtp_events[cpu->lwtc_current_index++]; \
768 if (cpu->lwtc_current_index >= LWT_EVENTS_PER_PAGE) { \
769 cpu->lwtc_current_page = \
770 list_entry (p->lwtp_list.next, \
771 lwt_page_t, lwtp_list); \
772 cpu->lwtc_current_index = 0; \
775 e->lwte_when = get_cycles(); \
776 e->lwte_where = LWTWHERE(__FILE__,__LINE__); \
777 e->lwte_task = current; \
778 e->lwte_p1 = (long)(p1); \
779 e->lwte_p2 = (long)(p2); \
780 e->lwte_p3 = (long)(p3); \
781 e->lwte_p4 = (long)(p4); \
784 local_irq_restore (flags); \
786 #else /* __KERNEL__ */
787 #define LWT_EVENT(p1,p2,p3,p4) /* no userland implementation yet */
788 #endif /* __KERNEL__ */
789 #endif /* LWT_SUPPORT */
791 struct portals_device_userstate
793 int pdu_memhog_pages;
794 struct page *pdu_memhog_root_page;
797 #include <linux/portals_lib.h>
800 * USER LEVEL STUFF BELOW
803 #define PORTALS_CFG_VERSION 0x00010001;
823 __u32 pcfg_plen1; /* buffers in userspace */
825 __u32 pcfg_plen2; /* buffers in userspace */
829 #define PCFG_INIT(pcfg, cmd) \
831 memset(&pcfg, 0, sizeof(pcfg)); \
832 pcfg.pcfg_version = PORTALS_CFG_VERSION; \
833 pcfg.pcfg_command = (cmd); \
837 #define PORTAL_IOCTL_VERSION 0x00010007
841 struct portal_ioctl_data {
865 __u32 ioc_plen1; /* buffers in userspace */
867 __u32 ioc_plen2; /* buffers in userspace */
873 struct portal_ioctl_hdr {
878 struct portals_debug_ioctl_data
880 struct portal_ioctl_hdr hdr;
885 #define PORTAL_IOC_INIT(data) \
887 memset(&data, 0, sizeof(data)); \
888 data.ioc_version = PORTAL_IOCTL_VERSION; \
889 data.ioc_len = sizeof(data); \
892 /* FIXME check conflict with lustre_lib.h */
893 #define PTL_IOC_DEBUG_MASK _IOWR('f', 250, long)
895 static inline int portal_ioctl_packlen(struct portal_ioctl_data *data)
897 int len = sizeof(*data);
898 len += size_round(data->ioc_inllen1);
899 len += size_round(data->ioc_inllen2);
903 static inline int portal_ioctl_is_invalid(struct portal_ioctl_data *data)
905 if (data->ioc_len > (1<<30)) {
906 CERROR ("PORTALS ioctl: ioc_len larger than 1<<30\n");
909 if (data->ioc_inllen1 > (1<<30)) {
910 CERROR ("PORTALS ioctl: ioc_inllen1 larger than 1<<30\n");
913 if (data->ioc_inllen2 > (1<<30)) {
914 CERROR ("PORTALS ioctl: ioc_inllen2 larger than 1<<30\n");
917 if (data->ioc_inlbuf1 && !data->ioc_inllen1) {
918 CERROR ("PORTALS ioctl: inlbuf1 pointer but 0 length\n");
921 if (data->ioc_inlbuf2 && !data->ioc_inllen2) {
922 CERROR ("PORTALS ioctl: inlbuf2 pointer but 0 length\n");
925 if (data->ioc_pbuf1 && !data->ioc_plen1) {
926 CERROR ("PORTALS ioctl: pbuf1 pointer but 0 length\n");
929 if (data->ioc_pbuf2 && !data->ioc_plen2) {
930 CERROR ("PORTALS ioctl: pbuf2 pointer but 0 length\n");
933 if (data->ioc_plen1 && !data->ioc_pbuf1) {
934 CERROR ("PORTALS ioctl: plen1 nonzero but no pbuf1 pointer\n");
937 if (data->ioc_plen2 && !data->ioc_pbuf2) {
938 CERROR ("PORTALS ioctl: plen2 nonzero but no pbuf2 pointer\n");
941 if (portal_ioctl_packlen(data) != data->ioc_len ) {
942 CERROR ("PORTALS ioctl: packlen != ioc_len\n");
945 if (data->ioc_inllen1 &&
946 data->ioc_bulk[data->ioc_inllen1 - 1] != '\0') {
947 CERROR ("PORTALS ioctl: inlbuf1 not 0 terminated\n");
950 if (data->ioc_inllen2 &&
951 data->ioc_bulk[size_round(data->ioc_inllen1) +
952 data->ioc_inllen2 - 1] != '\0') {
953 CERROR ("PORTALS ioctl: inlbuf2 not 0 terminated\n");
960 static inline int portal_ioctl_pack(struct portal_ioctl_data *data, char **pbuf,
964 struct portal_ioctl_data *overlay;
965 data->ioc_len = portal_ioctl_packlen(data);
966 data->ioc_version = PORTAL_IOCTL_VERSION;
968 if (*pbuf && portal_ioctl_packlen(data) > max)
971 *pbuf = malloc(data->ioc_len);
975 overlay = (struct portal_ioctl_data *)*pbuf;
976 memcpy(*pbuf, data, sizeof(*data));
978 ptr = overlay->ioc_bulk;
979 if (data->ioc_inlbuf1)
980 LOGL(data->ioc_inlbuf1, data->ioc_inllen1, ptr);
981 if (data->ioc_inlbuf2)
982 LOGL(data->ioc_inlbuf2, data->ioc_inllen2, ptr);
983 if (portal_ioctl_is_invalid(overlay))
989 #include <asm/uaccess.h>
991 /* buffer MUST be at least the size of portal_ioctl_hdr */
992 static inline int portal_ioctl_getdata(char *buf, char *end, void *arg)
994 struct portal_ioctl_hdr *hdr;
995 struct portal_ioctl_data *data;
999 hdr = (struct portal_ioctl_hdr *)buf;
1000 data = (struct portal_ioctl_data *)buf;
1002 err = copy_from_user(buf, (void *)arg, sizeof(*hdr));
1008 if (hdr->ioc_version != PORTAL_IOCTL_VERSION) {
1009 CERROR ("PORTALS: version mismatch kernel vs application\n");
1013 if (hdr->ioc_len + buf >= end) {
1014 CERROR ("PORTALS: user buffer exceeds kernel buffer\n");
1019 if (hdr->ioc_len < sizeof(struct portal_ioctl_data)) {
1020 CERROR ("PORTALS: user buffer too small for ioctl\n");
1024 err = copy_from_user(buf, (void *)arg, hdr->ioc_len);
1030 if (portal_ioctl_is_invalid(data)) {
1031 CERROR ("PORTALS: ioctl not correctly formatted\n");
1035 if (data->ioc_inllen1) {
1036 data->ioc_inlbuf1 = &data->ioc_bulk[0];
1039 if (data->ioc_inllen2) {
1040 data->ioc_inlbuf2 = &data->ioc_bulk[0] +
1041 size_round(data->ioc_inllen1);
1049 /* ioctls for manipulating snapshots 30- */
1050 #define IOC_PORTAL_TYPE 'e'
1051 #define IOC_PORTAL_MIN_NR 30
1053 #define IOC_PORTAL_PING _IOWR('e', 30, long)
1054 #define IOC_PORTAL_GET_DEBUG _IOWR('e', 31, long)
1055 #define IOC_PORTAL_CLEAR_DEBUG _IOWR('e', 32, long)
1056 #define IOC_PORTAL_MARK_DEBUG _IOWR('e', 33, long)
1057 #define IOC_PORTAL_PANIC _IOWR('e', 34, long)
1058 #define IOC_PORTAL_NAL_CMD _IOWR('e', 35, long)
1059 #define IOC_PORTAL_GET_NID _IOWR('e', 36, long)
1060 #define IOC_PORTAL_FAIL_NID _IOWR('e', 37, long)
1061 #define IOC_PORTAL_SET_DAEMON _IOWR('e', 38, long)
1062 #define IOC_PORTAL_LWT_CONTROL _IOWR('e', 39, long)
1063 #define IOC_PORTAL_LWT_SNAPSHOT _IOWR('e', 40, long)
1064 #define IOC_PORTAL_LWT_LOOKUP_STRING _IOWR('e', 41, long)
1065 #define IOC_PORTAL_MEMHOG _IOWR('e', 42, long)
1066 #define IOC_PORTAL_MAX_NR 42
1081 extern ptl_handle_ni_t kqswnal_ni;
1082 extern ptl_handle_ni_t ksocknal_ni;
1083 extern ptl_handle_ni_t ktoenal_ni;
1084 extern ptl_handle_ni_t kgmnal_ni;
1085 extern ptl_handle_ni_t kibnal_ni;
1086 extern ptl_handle_ni_t kscimacnal_ni;
1089 #define PTL_NALFMT_SIZE 16
1091 #define NAL_MAX_NR (NAL_ENUM_END_MARKER - 1)
1093 #define NAL_CMD_REGISTER_PEER_FD 100
1094 #define NAL_CMD_CLOSE_CONNECTION 101
1095 #define NAL_CMD_REGISTER_MYNID 102
1096 #define NAL_CMD_PUSH_CONNECTION 103
1097 #define NAL_CMD_GET_CONN 104
1098 #define NAL_CMD_DEL_AUTOCONN 105
1099 #define NAL_CMD_ADD_AUTOCONN 106
1100 #define NAL_CMD_GET_AUTOCONN 107
1101 #define NAL_CMD_GET_TXDESC 108
1102 #define NAL_CMD_ADD_ROUTE 109
1103 #define NAL_CMD_DEL_ROUTE 110
1104 #define NAL_CMD_GET_ROUTE 111
1105 #define NAL_CMD_NOTIFY_ROUTER 112
1108 DEBUG_DAEMON_START = 1,
1109 DEBUG_DAEMON_STOP = 2,
1110 DEBUG_DAEMON_PAUSE = 3,
1111 DEBUG_DAEMON_CONTINUE = 4,
1114 /* XXX remove to lustre ASAP */
1115 struct lustre_peer {
1117 ptl_handle_ni_t peer_ni;
1122 typedef int (*nal_cmd_handler_t)(struct portals_cfg *, void * private);
1123 int kportal_nal_register(int nal, nal_cmd_handler_t handler, void * private);
1124 int kportal_nal_unregister(int nal);
1126 enum cfg_record_type {
1127 PORTALS_CFG_TYPE = 1,
1128 LUSTRE_CFG_TYPE = 123,
1131 typedef int (*cfg_record_cb_t)(enum cfg_record_type, int len, void *data);
1132 int kportal_nal_cmd(struct portals_cfg *);
1134 ptl_handle_ni_t *kportal_get_ni (int nal);
1135 void kportal_put_ni (int nal);
1138 # ifndef BITS_PER_LONG
1139 # if (~0UL) == 0xffffffffUL
1140 # define BITS_PER_LONG 32
1142 # define BITS_PER_LONG 64
1147 #if defined(__x86_64__)
1148 # define LPU64 "%Lu"
1149 # define LPD64 "%Ld"
1150 # define LPX64 "%#Lx"
1152 # define LPSSZ "%ld"
1153 #elif (BITS_PER_LONG == 32 || __WORDSIZE == 32)
1154 # define LPU64 "%Lu"
1155 # define LPD64 "%Ld"
1156 # define LPX64 "%#Lx"
1159 #elif (BITS_PER_LONG == 64 || __WORDSIZE == 64)
1160 # define LPU64 "%lu"
1161 # define LPD64 "%ld"
1162 # define LPX64 "%#lx"
1164 # define LPSSZ "%ld"
1167 # error "No word size defined"