1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
7 #include <linux/libcfs.h>
11 # define offsetof(typ,memb) ((unsigned long)((char *)&(((typ *)0)->memb)))
14 #define LOWEST_BIT_SET(x) ((x) & ~((x) - 1))
17 # include <linux/vmalloc.h>
18 # include <linux/time.h>
19 # include <linux/slab.h>
20 # include <linux/interrupt.h>
21 # include <linux/highmem.h>
22 # include <linux/module.h>
23 # include <linux/version.h>
24 # include <portals/p30.h>
25 # include <linux/smp_lock.h>
26 # include <asm/atomic.h>
28 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
29 #define schedule_work schedule_task
30 #define prepare_work(wq,cb,cbdata) \
32 INIT_TQUEUE((wq), 0, 0); \
33 PREPARE_TQUEUE((wq), (cb), (cbdata)); \
36 #define PageUptodate Page_Uptodate
37 #define our_recalc_sigpending(current) recalc_sigpending(current)
38 #define num_online_cpus() smp_num_cpus
39 static inline void our_cond_resched(void)
41 if (current->need_resched)
44 #define work_struct_t struct tq_struct
48 #define prepare_work(wq,cb,cbdata) \
50 INIT_WORK((wq), (void *)(cb), (void *)(cbdata)); \
52 #define wait_on_page wait_on_page_locked
53 #define our_recalc_sigpending(current) recalc_sigpending()
54 #define strtok(a,b) strpbrk(a, b)
55 static inline void our_cond_resched(void)
59 #define work_struct_t struct work_struct
61 #endif /* LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0) */
64 extern void kportal_assertion_failed(char *expr, char *file, const char *func,
66 #define LASSERT(e) ((e) ? 0 : kportal_assertion_failed( #e , __FILE__, \
67 __FUNCTION__, __LINE__))
68 /* it would be great to dump_stack() here, but some kernels
69 * export it as show_stack() and I can't be bothered to
70 * proprely engage in that dance right now */
71 #define LASSERTF(cond, fmt...) \
73 if (unlikely(!(cond))) { \
74 portals_debug_msg(0, D_EMERG, __FILE__, __FUNCTION__,\
75 __LINE__, CDEBUG_STACK, \
76 "ASSERTION(" #cond ") failed:" fmt);\
83 #define LASSERTF(cond, fmt...) do { } while (0)
87 #define LASSERT_SPIN_LOCKED(lock) LASSERT(spin_is_locked(lock))
89 #define LASSERT_SPIN_LOCKED(lock) do {} while(0)
93 #define LBUG_WITH_LOC(file, func, line) \
95 CEMERG("LBUG - trying to dump log to /tmp/lustre-log\n"); \
96 portals_debug_dumplog(); \
97 portals_run_lbug_upcall(file, func, line); \
101 #define LBUG_WITH_LOC(file, func, line) \
104 portals_debug_dumplog(); \
105 portals_run_lbug_upcall(file, func, line); \
106 set_task_state(current, TASK_UNINTERRUPTIBLE); \
109 #endif /* __arch_um__ */
111 #define LBUG() LBUG_WITH_LOC(__FILE__, __FUNCTION__, __LINE__)
117 extern atomic_t portal_kmemory;
119 # define portal_kmem_inc(ptr, size) \
121 atomic_add(size, &portal_kmemory); \
124 # define portal_kmem_dec(ptr, size) do { \
125 atomic_sub(size, &portal_kmemory); \
129 # define portal_kmem_inc(ptr, size) do {} while (0)
130 # define portal_kmem_dec(ptr, size) do {} while (0)
131 #endif /* PORTAL_DEBUG */
133 #define PORTAL_VMALLOC_SIZE 16384
135 #define PORTAL_ALLOC_GFP(ptr, size, mask) \
137 LASSERT(!in_interrupt() || \
138 (size <= PORTAL_VMALLOC_SIZE && mask == GFP_ATOMIC)); \
139 if ((size) > PORTAL_VMALLOC_SIZE) \
140 (ptr) = vmalloc(size); \
142 (ptr) = kmalloc((size), (mask)); \
143 if ((ptr) == NULL) { \
144 CERROR("PORTALS: out of memory at %s:%d (tried to alloc '"\
145 #ptr "' = %d)\n", __FILE__, __LINE__, (int)(size));\
146 CERROR("PORTALS: %d total bytes allocated by portals\n", \
147 atomic_read(&portal_kmemory)); \
149 portal_kmem_inc((ptr), (size)); \
150 memset((ptr), 0, (size)); \
152 CDEBUG(D_MALLOC, "kmalloced '" #ptr "': %d at %p (tot %d).\n", \
153 (int)(size), (ptr), atomic_read (&portal_kmemory)); \
156 #define PORTAL_ALLOC(ptr, size) \
157 PORTAL_ALLOC_GFP(ptr, size, GFP_NOFS)
159 #define PORTAL_ALLOC_ATOMIC(ptr, size) \
160 PORTAL_ALLOC_GFP(ptr, size, GFP_ATOMIC)
162 #define PORTAL_FREE(ptr, size) \
165 if ((ptr) == NULL) { \
166 CERROR("PORTALS: free NULL '" #ptr "' (%d bytes) at " \
167 "%s:%d\n", s, __FILE__, __LINE__); \
170 if (s > PORTAL_VMALLOC_SIZE) \
174 portal_kmem_dec((ptr), s); \
175 CDEBUG(D_MALLOC, "kfreed '" #ptr "': %d at %p (tot %d).\n", \
176 s, (ptr), atomic_read(&portal_kmemory)); \
179 /* ------------------------------------------------------------------- */
181 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
183 #define PORTAL_SYMBOL_REGISTER(x) inter_module_register(#x, THIS_MODULE, &x)
184 #define PORTAL_SYMBOL_UNREGISTER(x) inter_module_unregister(#x)
186 #define PORTAL_SYMBOL_GET(x) ((typeof(&x))inter_module_get(#x))
187 #define PORTAL_SYMBOL_PUT(x) inter_module_put(#x)
189 #define PORTAL_MODULE_USE MOD_INC_USE_COUNT
190 #define PORTAL_MODULE_UNUSE MOD_DEC_USE_COUNT
193 #define PORTAL_SYMBOL_REGISTER(x)
194 #define PORTAL_SYMBOL_UNREGISTER(x)
196 #define PORTAL_SYMBOL_GET(x) symbol_get(x)
197 #define PORTAL_SYMBOL_PUT(x) symbol_put(x)
199 #define PORTAL_MODULE_USE try_module_get(THIS_MODULE)
200 #define PORTAL_MODULE_UNUSE module_put(THIS_MODULE)
204 /******************************************************************************/
206 #ifdef PORTALS_PROFILING
207 #define prof_enum(FOO) PROF__##FOO
209 prof_enum(our_recvmsg),
210 prof_enum(our_sendmsg),
211 prof_enum(socknal_recv),
212 prof_enum(lib_parse),
213 prof_enum(conn_list_walk),
215 prof_enum(lib_finalize),
216 prof_enum(pingcli_time),
217 prof_enum(gmnal_send),
218 prof_enum(gmnal_recv),
224 /* hrmph. wrap-tastic. */
227 cycles_t total_cycles;
232 extern struct prof_ent prof_ents[MAX_PROFS];
234 #define PROF_START(FOO) \
236 struct prof_ent *pe = &prof_ents[PROF__##FOO]; \
238 pe->start = get_cycles(); \
241 #define PROF_FINISH(FOO) \
243 struct prof_ent *pe = &prof_ents[PROF__##FOO]; \
245 pe->end = get_cycles(); \
246 pe->total_cycles += (pe->end - pe->start); \
248 #else /* !PORTALS_PROFILING */
249 #define PROF_START(FOO) do {} while(0)
250 #define PROF_FINISH(FOO) do {} while(0)
251 #endif /* PORTALS_PROFILING */
254 extern spinlock_t stack_backtrace_lock;
256 char *portals_debug_dumpstack(void);
257 void portals_run_upcall(char **argv);
258 void portals_run_lbug_upcall(char * file, const char *fn, const int line);
259 void portals_debug_dumplog(void);
260 int portals_debug_init(unsigned long bufsize);
261 int portals_debug_cleanup(void);
262 int portals_debug_clear_buffer(void);
263 int portals_debug_mark_buffer(char *text);
264 int portals_debug_set_daemon(unsigned int cmd, unsigned int length,
265 char *file, unsigned int size);
266 __s32 portals_debug_copy_to_user(char *buf, unsigned long len);
268 /* Use the special GNU C __attribute__ hack to have the compiler check the
269 * printf style argument string against the actual argument count and
273 # warning printf has been defined as a macro...
276 void portals_debug_msg(int subsys, int mask, char *file, const char *fn,
277 const int line, unsigned long stack,
279 __attribute__ ((format (printf, 7, 8)));
281 void portals_debug_msg(int subsys, int mask, char *file, const char *fn,
282 const int line, unsigned long stack,
283 const char *format, ...);
284 #endif /* __GNUC__ */
285 void portals_debug_set_level(unsigned int debug_level);
287 # define fprintf(a, format, b...) CDEBUG(D_OTHER, format , ## b)
288 # define printf(format, b...) CDEBUG(D_OTHER, format , ## b)
289 # define time(a) CURRENT_TIME
291 extern void kportal_daemonize (char *name);
292 extern void kportal_blockallsigs (void);
294 #else /* !__KERNEL__ */
300 # include <cygwin-ioctl.h>
305 # include <asm/types.h>
306 # ifndef DEBUG_SUBSYSTEM
307 # define DEBUG_SUBSYSTEM S_UNDEFINED
312 # define LASSERT(e) assert(e)
313 # define LASSERTF(cond, args...) \
321 # define LASSERTF(cond, args...) do { } while (0)
323 # define printk(format, args...) printf (format, ## args)
324 # define PORTAL_ALLOC(ptr, size) do { (ptr) = malloc(size); } while (0);
325 # define PORTAL_FREE(a, b) do { free(a); } while (0);
326 void portals_debug_dumplog(void);
327 # define portals_debug_msg(subsys, mask, file, fn, line, stack, format, a...) \
328 printf("%02x:%06x (@%lu %s:%s,l. %d %d %lu): " format, \
329 (subsys), (mask), (long)time(0), file, fn, line, \
330 getpid() , stack, ## a);
333 /* support decl needed both by kernel and liblustre */
334 char *portals_nid2str(int nal, ptl_nid_t nid, char *str);
337 # define CURRENT_TIME time(0)
340 /******************************************************************************/
341 /* Light-weight trace
342 * Support for temporary event tracing with minimal Heisenberg effect. */
343 #define LWT_SUPPORT 0
345 #define LWT_MEMORY (64<<20)
346 #define LWT_MAX_CPUS 4
356 #if BITS_PER_LONG > 32
363 #define LWT_EVENTS_PER_PAGE (PAGE_SIZE / sizeof (lwt_event_t))
365 typedef struct _lwt_page {
366 struct list_head lwtp_list;
367 struct page *lwtp_page;
368 lwt_event_t *lwtp_events;
372 int lwtc_current_index;
373 lwt_page_t *lwtc_current_page;
376 extern int lwt_enabled;
377 extern lwt_cpu_t lwt_cpus[];
379 extern int lwt_init (void);
380 extern void lwt_fini (void);
381 extern int lwt_lookup_string (int *size, char *knlptr,
382 char *usrptr, int usrsize);
383 extern int lwt_control (int enable, int clear);
384 extern int lwt_snapshot (cycles_t *now, int *ncpu, int *total_size,
385 void *user_ptr, int user_size);
387 /* Note that we _don't_ define LWT_EVENT at all if LWT_SUPPORT isn't set.
388 * This stuff is meant for finding specific problems; it never stays in
389 * production code... */
392 #define LWTWHERE(f,l) f ":" LWTSTR(l)
394 #define LWT_EVENT(p1, p2, p3, p4) \
396 unsigned long flags; \
401 local_irq_save (flags); \
404 cpu = &lwt_cpus[smp_processor_id()]; \
405 p = cpu->lwtc_current_page; \
406 e = &p->lwtp_events[cpu->lwtc_current_index++]; \
408 if (cpu->lwtc_current_index >= LWT_EVENTS_PER_PAGE) { \
409 cpu->lwtc_current_page = \
410 list_entry (p->lwtp_list.next, \
411 lwt_page_t, lwtp_list); \
412 cpu->lwtc_current_index = 0; \
415 e->lwte_when = get_cycles(); \
416 e->lwte_where = LWTWHERE(__FILE__,__LINE__); \
417 e->lwte_task = current; \
418 e->lwte_p1 = (long)(p1); \
419 e->lwte_p2 = (long)(p2); \
420 e->lwte_p3 = (long)(p3); \
421 e->lwte_p4 = (long)(p4); \
424 local_irq_restore (flags); \
426 #else /* __KERNEL__ */
427 #define LWT_EVENT(p1,p2,p3,p4) /* no userland implementation yet */
428 #endif /* __KERNEL__ */
429 #endif /* LWT_SUPPORT */
431 struct portals_device_userstate
433 int pdu_memhog_pages;
434 struct page *pdu_memhog_root_page;
437 #include <linux/portals_lib.h>
440 * USER LEVEL STUFF BELOW
443 #define PORTAL_IOCTL_VERSION 0x00010007
447 struct portal_ioctl_hdr {
452 struct portals_debug_ioctl_data
454 struct portal_ioctl_hdr hdr;
459 #define PORTAL_IOC_INIT(data) \
461 memset(&data, 0, sizeof(data)); \
462 data.ioc_version = PORTAL_IOCTL_VERSION; \
463 data.ioc_len = sizeof(data); \
466 /* FIXME check conflict with lustre_lib.h */
467 #define PTL_IOC_DEBUG_MASK _IOWR('f', 250, long)
469 static inline int portal_ioctl_packlen(struct portal_ioctl_data *data)
471 int len = sizeof(*data);
472 len += size_round(data->ioc_inllen1);
473 len += size_round(data->ioc_inllen2);
477 static inline int portal_ioctl_is_invalid(struct portal_ioctl_data *data)
479 if (data->ioc_len > (1<<30)) {
480 CERROR ("PORTALS ioctl: ioc_len larger than 1<<30\n");
483 if (data->ioc_inllen1 > (1<<30)) {
484 CERROR ("PORTALS ioctl: ioc_inllen1 larger than 1<<30\n");
487 if (data->ioc_inllen2 > (1<<30)) {
488 CERROR ("PORTALS ioctl: ioc_inllen2 larger than 1<<30\n");
491 if (data->ioc_inlbuf1 && !data->ioc_inllen1) {
492 CERROR ("PORTALS ioctl: inlbuf1 pointer but 0 length\n");
495 if (data->ioc_inlbuf2 && !data->ioc_inllen2) {
496 CERROR ("PORTALS ioctl: inlbuf2 pointer but 0 length\n");
499 if (data->ioc_pbuf1 && !data->ioc_plen1) {
500 CERROR ("PORTALS ioctl: pbuf1 pointer but 0 length\n");
503 if (data->ioc_pbuf2 && !data->ioc_plen2) {
504 CERROR ("PORTALS ioctl: pbuf2 pointer but 0 length\n");
507 if (data->ioc_plen1 && !data->ioc_pbuf1) {
508 CERROR ("PORTALS ioctl: plen1 nonzero but no pbuf1 pointer\n");
511 if (data->ioc_plen2 && !data->ioc_pbuf2) {
512 CERROR ("PORTALS ioctl: plen2 nonzero but no pbuf2 pointer\n");
515 if (portal_ioctl_packlen(data) != data->ioc_len ) {
516 CERROR ("PORTALS ioctl: packlen != ioc_len\n");
519 if (data->ioc_inllen1 &&
520 data->ioc_bulk[data->ioc_inllen1 - 1] != '\0') {
521 CERROR ("PORTALS ioctl: inlbuf1 not 0 terminated\n");
524 if (data->ioc_inllen2 &&
525 data->ioc_bulk[size_round(data->ioc_inllen1) +
526 data->ioc_inllen2 - 1] != '\0') {
527 CERROR ("PORTALS ioctl: inlbuf2 not 0 terminated\n");
534 static inline int portal_ioctl_pack(struct portal_ioctl_data *data, char **pbuf,
538 struct portal_ioctl_data *overlay;
539 data->ioc_len = portal_ioctl_packlen(data);
540 data->ioc_version = PORTAL_IOCTL_VERSION;
542 if (*pbuf && portal_ioctl_packlen(data) > max)
545 *pbuf = malloc(data->ioc_len);
549 overlay = (struct portal_ioctl_data *)*pbuf;
550 memcpy(*pbuf, data, sizeof(*data));
552 ptr = overlay->ioc_bulk;
553 if (data->ioc_inlbuf1)
554 LOGL(data->ioc_inlbuf1, data->ioc_inllen1, ptr);
555 if (data->ioc_inlbuf2)
556 LOGL(data->ioc_inlbuf2, data->ioc_inllen2, ptr);
557 if (portal_ioctl_is_invalid(overlay))
563 #include <asm/uaccess.h>
565 /* buffer MUST be at least the size of portal_ioctl_hdr */
566 static inline int portal_ioctl_getdata(char *buf, char *end, void *arg)
568 struct portal_ioctl_hdr *hdr;
569 struct portal_ioctl_data *data;
573 hdr = (struct portal_ioctl_hdr *)buf;
574 data = (struct portal_ioctl_data *)buf;
576 err = copy_from_user(buf, (void *)arg, sizeof(*hdr));
582 if (hdr->ioc_version != PORTAL_IOCTL_VERSION) {
583 CERROR ("PORTALS: version mismatch kernel vs application\n");
587 if (hdr->ioc_len + buf >= end) {
588 CERROR ("PORTALS: user buffer exceeds kernel buffer\n");
593 if (hdr->ioc_len < sizeof(struct portal_ioctl_data)) {
594 CERROR ("PORTALS: user buffer too small for ioctl\n");
598 err = copy_from_user(buf, (void *)arg, hdr->ioc_len);
604 if (portal_ioctl_is_invalid(data)) {
605 CERROR ("PORTALS: ioctl not correctly formatted\n");
609 if (data->ioc_inllen1) {
610 data->ioc_inlbuf1 = &data->ioc_bulk[0];
613 if (data->ioc_inllen2) {
614 data->ioc_inlbuf2 = &data->ioc_bulk[0] +
615 size_round(data->ioc_inllen1);
623 /* ioctls for manipulating snapshots 30- */
624 #define IOC_PORTAL_TYPE 'e'
625 #define IOC_PORTAL_MIN_NR 30
627 #define IOC_PORTAL_PING _IOWR('e', 30, long)
628 #define IOC_PORTAL_GET_DEBUG _IOWR('e', 31, long)
629 #define IOC_PORTAL_CLEAR_DEBUG _IOWR('e', 32, long)
630 #define IOC_PORTAL_MARK_DEBUG _IOWR('e', 33, long)
631 #define IOC_PORTAL_PANIC _IOWR('e', 34, long)
632 #define IOC_PORTAL_NAL_CMD _IOWR('e', 35, long)
633 #define IOC_PORTAL_GET_NID _IOWR('e', 36, long)
634 #define IOC_PORTAL_FAIL_NID _IOWR('e', 37, long)
635 #define IOC_PORTAL_SET_DAEMON _IOWR('e', 38, long)
636 #define IOC_PORTAL_LWT_CONTROL _IOWR('e', 39, long)
637 #define IOC_PORTAL_LWT_SNAPSHOT _IOWR('e', 40, long)
638 #define IOC_PORTAL_LWT_LOOKUP_STRING _IOWR('e', 41, long)
639 #define IOC_PORTAL_MEMHOG _IOWR('e', 42, long)
640 #define IOC_PORTAL_MAX_NR 42
654 #define PTL_NALFMT_SIZE 26 /* %u:%u.%u.%u.%u (10+4+4+4+3+1) */
656 #define NAL_MAX_NR (NAL_ENUM_END_MARKER - 1)
658 #define NAL_CMD_REGISTER_PEER_FD 100
659 #define NAL_CMD_CLOSE_CONNECTION 101
660 #define NAL_CMD_REGISTER_MYNID 102
661 #define NAL_CMD_PUSH_CONNECTION 103
662 #define NAL_CMD_GET_CONN 104
663 #define NAL_CMD_DEL_AUTOCONN 105
664 #define NAL_CMD_ADD_AUTOCONN 106
665 #define NAL_CMD_GET_AUTOCONN 107
666 #define NAL_CMD_GET_TXDESC 108
667 #define NAL_CMD_ADD_ROUTE 109
668 #define NAL_CMD_DEL_ROUTE 110
669 #define NAL_CMD_GET_ROUTE 111
670 #define NAL_CMD_NOTIFY_ROUTER 112
673 DEBUG_DAEMON_START = 1,
674 DEBUG_DAEMON_STOP = 2,
675 DEBUG_DAEMON_PAUSE = 3,
676 DEBUG_DAEMON_CONTINUE = 4,
680 enum cfg_record_type {
681 PORTALS_CFG_TYPE = 1,
682 LUSTRE_CFG_TYPE = 123,
685 typedef int (*cfg_record_cb_t)(enum cfg_record_type, int len, void *data);
688 # ifndef BITS_PER_LONG
689 # if (~0UL) == 0xffffffffUL
690 # define BITS_PER_LONG 32
692 # define BITS_PER_LONG 64
697 #if BITS_PER_LONG > 32
698 # define LI_POISON ((int)0x5a5a5a5a5a5a5a5a)
699 # define LL_POISON ((long)0x5a5a5a5a5a5a5a5a)
700 # define LP_POISON ((void *)(long)0x5a5a5a5a5a5a5a5a)
702 # define LI_POISON ((int)0x5a5a5a5a)
703 # define LL_POISON ((long)0x5a5a5a5a)
704 # define LP_POISON ((void *)(long)0x5a5a5a5a)
707 #if defined(__x86_64__)
710 # define LPX64 "%#Lx"
713 #elif (BITS_PER_LONG == 32 || __WORDSIZE == 32)
716 # define LPX64 "%#Lx"
719 #elif (BITS_PER_LONG == 64 || __WORDSIZE == 64)
722 # define LPX64 "%#lx"
727 # error "No word size defined"