lnet/include/linux/kp30.h

   1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
   2  * vim:expandtab:shiftwidth=8:tabstop=8:
   3  */
   4 #ifndef _KP30_INCLUDED
   5 #define _KP30_INCLUDED
   6
   7 #include <linux/libcfs.h>
   8 #define PORTAL_DEBUG
   9
  10 #ifdef __KERNEL__
  11 # include <linux/vmalloc.h>
  12 # include <linux/time.h>
  13 # include <linux/slab.h>
  14 # include <linux/interrupt.h>
  15 # include <linux/highmem.h>
  16 # include <linux/module.h>
  17 # include <linux/version.h>
  18 # include <portals/p30.h>
  19 # include <linux/smp_lock.h>
  20 # include <asm/atomic.h>
  21
  22 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
  23 #define schedule_work schedule_task
  24 #define prepare_work(wq,cb,cbdata)                                            \
  25 do {                                                                          \
  26         INIT_TQUEUE((wq), 0, 0);                                              \
  27         PREPARE_TQUEUE((wq), (cb), (cbdata));                                 \
  28 } while (0)
  29
  30 #define PageUptodate Page_Uptodate
  31 #define our_recalc_sigpending(current) recalc_sigpending(current)
  32 #define num_online_cpus() smp_num_cpus
  33 static inline void our_cond_resched(void)
  34 {
  35         if (current->need_resched)
  36                schedule ();
  37 }
  38 #define work_struct_t       struct tq_struct
  39
  40 #else
  41
  42 #define prepare_work(wq,cb,cbdata)                                            \
  43 do {                                                                          \
  44         INIT_WORK((wq), (void *)(cb), (void *)(cbdata));                      \
  45 } while (0)
  46 #define wait_on_page wait_on_page_locked
  47 #define our_recalc_sigpending(current) recalc_sigpending()
  48 #define strtok(a,b) strpbrk(a, b)
  49 static inline void our_cond_resched(void)
  50 {
  51         cond_resched();
  52 }
  53 #define work_struct_t      struct work_struct
  54
  55 #endif /* LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0) */
  56
  57 #ifdef PORTAL_DEBUG
  58 extern void kportal_assertion_failed(char *expr, char *file, const char *func,
  59                                      const int line);
  60 #define LASSERT(e) ((e) ? 0 : kportal_assertion_failed( #e , __FILE__,  \
  61                                                         __FUNCTION__, __LINE__))
  62 #define LASSERTF(cond, fmt...)                                                \
  63         do {                                                                  \
  64                 if (unlikely(!(cond))) {                                      \
  65                         portals_debug_msg(DEBUG_SUBSYSTEM, D_EMERG,  __FILE__,\
  66                                           __FUNCTION__,__LINE__, CDEBUG_STACK,\
  67                                           "ASSERTION(" #cond ") failed:" fmt);\
  68                         LBUG();                                               \
  69                 }                                                             \
  70         } while (0)
  71
  72 #else
  73 #define LASSERT(e)
  74 #define LASSERTF(cond, fmt...) do { } while (0)
  75 #endif
  76
  77 #ifdef CONFIG_SMP
  78 #define LASSERT_SPIN_LOCKED(lock) LASSERT(spin_is_locked(lock))
  79 #else
  80 #define LASSERT_SPIN_LOCKED(lock) do {} while(0)
  81 #endif
  82
  83 #ifdef __arch_um__
  84 #define LBUG_WITH_LOC(file, func, line)                                 \
  85 do {                                                                    \
  86         CEMERG("LBUG - trying to dump log to /tmp/lustre-log\n");       \
  87         portals_debug_dumplog();                                        \
  88         portals_run_lbug_upcall(file, func, line);                      \
  89         panic("LBUG");                                                  \
  90 } while (0)
  91 #else
  92 #define LBUG_WITH_LOC(file, func, line)                                 \
  93 do {                                                                    \
  94         CEMERG("LBUG\n");                                               \
  95         CERROR("STACK: %s\n", portals_debug_dumpstack());               \
  96         portals_debug_dumplog();                                        \
  97         portals_run_lbug_upcall(file, func, line);                      \
  98         set_task_state(current, TASK_UNINTERRUPTIBLE);                  \
  99         schedule();                                                     \
 100 } while (0)
 101 #endif /* __arch_um__ */
 102
 103 #define LBUG() LBUG_WITH_LOC(__FILE__, __FUNCTION__, __LINE__)
 104
 105 /*
 106  * Memory
 107  */
 108 #ifdef PORTAL_DEBUG
 109 extern atomic_t portal_kmemory;
 110
 111 # define portal_kmem_inc(ptr, size)                                           \
 112 do {                                                                          \
 113         atomic_add(size, &portal_kmemory);                                    \
 114 } while (0)
 115
 116 # define portal_kmem_dec(ptr, size) do {                                      \
 117         atomic_sub(size, &portal_kmemory);                                    \
 118 } while (0)
 119
 120 #else
 121 # define portal_kmem_inc(ptr, size) do {} while (0)
 122 # define portal_kmem_dec(ptr, size) do {} while (0)
 123 #endif /* PORTAL_DEBUG */
 124
 125 #define PORTAL_VMALLOC_SIZE        16384
 126
 127 #define PORTAL_ALLOC_GFP(ptr, size, mask)                                 \
 128 do {                                                                      \
 129         LASSERT(!in_interrupt() ||                                        \
 130                (size <= PORTAL_VMALLOC_SIZE && mask == GFP_ATOMIC));      \
 131         if ((size) > PORTAL_VMALLOC_SIZE)                                 \
 132                 (ptr) = vmalloc(size);                                    \
 133         else                                                              \
 134                 (ptr) = kmalloc((size), (mask));                          \
 135         if ((ptr) == NULL) {                                              \
 136                 CERROR("PORTALS: out of memory at %s:%d (tried to alloc '"\
 137                        #ptr "' = %d)\n", __FILE__, __LINE__, (int)(size));\
 138                 CERROR("PORTALS: %d total bytes allocated by portals\n",  \
 139                        atomic_read(&portal_kmemory));                     \
 140         } else {                                                          \
 141                 portal_kmem_inc((ptr), (size));                           \
 142                 memset((ptr), 0, (size));                                 \
 143         }                                                                 \
 144         CDEBUG(D_MALLOC, "kmalloced '" #ptr "': %d at %p (tot %d).\n",    \
 145                (int)(size), (ptr), atomic_read (&portal_kmemory));        \
 146 } while (0)
 147
 148 #define PORTAL_ALLOC(ptr, size) \
 149         PORTAL_ALLOC_GFP(ptr, size, GFP_NOFS)
 150
 151 #define PORTAL_ALLOC_ATOMIC(ptr, size) \
 152         PORTAL_ALLOC_GFP(ptr, size, GFP_ATOMIC)
 153
 154 #define PORTAL_FREE(ptr, size)                                          \
 155 do {                                                                    \
 156         int s = (size);                                                 \
 157         if ((ptr) == NULL) {                                            \
 158                 CERROR("PORTALS: free NULL '" #ptr "' (%d bytes) at "   \
 159                        "%s:%d\n", s, __FILE__, __LINE__);               \
 160                 break;                                                  \
 161         }                                                               \
 162         if (s > PORTAL_VMALLOC_SIZE)                                    \
 163                 vfree(ptr);                                             \
 164         else                                                            \
 165                 kfree(ptr);                                             \
 166         portal_kmem_dec((ptr), s);                                      \
 167         CDEBUG(D_MALLOC, "kfreed '" #ptr "': %d at %p (tot %d).\n",     \
 168                s, (ptr), atomic_read(&portal_kmemory));                 \
 169 } while (0)
 170
 171 /* ------------------------------------------------------------------- */
 172
 173 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
 174
 175 #define PORTAL_SYMBOL_REGISTER(x) inter_module_register(#x, THIS_MODULE, &x)
 176 #define PORTAL_SYMBOL_UNREGISTER(x) inter_module_unregister(#x)
 177
 178 #define PORTAL_SYMBOL_GET(x) ((typeof(&x))inter_module_get(#x))
 179 #define PORTAL_SYMBOL_PUT(x) inter_module_put(#x)
 180
 181 #define PORTAL_MODULE_USE       MOD_INC_USE_COUNT
 182 #define PORTAL_MODULE_UNUSE     MOD_DEC_USE_COUNT
 183 #else
 184
 185 #define PORTAL_SYMBOL_REGISTER(x)
 186 #define PORTAL_SYMBOL_UNREGISTER(x)
 187
 188 #define PORTAL_SYMBOL_GET(x) symbol_get(x)
 189 #define PORTAL_SYMBOL_PUT(x) symbol_put(x)
 190
 191 #define PORTAL_MODULE_USE       try_module_get(THIS_MODULE)
 192 #define PORTAL_MODULE_UNUSE     module_put(THIS_MODULE)
 193
 194 #endif
 195
 196 /******************************************************************************/
 197
 198 #ifdef PORTALS_PROFILING
 199 #define prof_enum(FOO) PROF__##FOO
 200 enum {
 201         prof_enum(our_recvmsg),
 202         prof_enum(our_sendmsg),
 203         prof_enum(socknal_recv),
 204         prof_enum(lib_parse),
 205         prof_enum(conn_list_walk),
 206         prof_enum(memcpy),
 207         prof_enum(lib_finalize),
 208         prof_enum(pingcli_time),
 209         prof_enum(gmnal_send),
 210         prof_enum(gmnal_recv),
 211         MAX_PROFS
 212 };
 213
 214 struct prof_ent {
 215         char *str;
 216         /* hrmph.  wrap-tastic. */
 217         u32       starts;
 218         u32       finishes;
 219         cycles_t  total_cycles;
 220         cycles_t  start;
 221         cycles_t  end;
 222 };
 223
 224 extern struct prof_ent prof_ents[MAX_PROFS];
 225
 226 #define PROF_START(FOO)                                         \
 227         do {                                                    \
 228                 struct prof_ent *pe = &prof_ents[PROF__##FOO];  \
 229                 pe->starts++;                                   \
 230                 pe->start = get_cycles();                       \
 231         } while (0)
 232
 233 #define PROF_FINISH(FOO)                                        \
 234         do {                                                    \
 235                 struct prof_ent *pe = &prof_ents[PROF__##FOO];  \
 236                 pe->finishes++;                                 \
 237                 pe->end = get_cycles();                         \
 238                 pe->total_cycles += (pe->end - pe->start);      \
 239         } while (0)
 240 #else /* !PORTALS_PROFILING */
 241 #define PROF_START(FOO) do {} while(0)
 242 #define PROF_FINISH(FOO) do {} while(0)
 243 #endif /* PORTALS_PROFILING */
 244
 245 /* debug.c */
 246 extern spinlock_t stack_backtrace_lock;
 247
 248 char *portals_debug_dumpstack(void);
 249 void portals_run_upcall(char **argv);
 250 void portals_run_lbug_upcall(char * file, const char *fn, const int line);
 251 void portals_debug_dumplog(void);
 252 int portals_debug_init(unsigned long bufsize);
 253 int portals_debug_cleanup(void);
 254 int portals_debug_clear_buffer(void);
 255 int portals_debug_mark_buffer(char *text);
 256 int portals_debug_set_daemon(unsigned int cmd, unsigned int length,
 257                              char *file, unsigned int size);
 258 __s32 portals_debug_copy_to_user(char *buf, unsigned long len);
 259 #if (__GNUC__)
 260 /* Use the special GNU C __attribute__ hack to have the compiler check the
 261  * printf style argument string against the actual argument count and
 262  * types.
 263  */
 264 #ifdef printf
 265 # warning printf has been defined as a macro...
 266 # undef printf
 267 #endif
 268 void portals_debug_msg(int subsys, int mask, char *file, const char *fn,
 269                        const int line, unsigned long stack,
 270                        char *format, ...)
 271         __attribute__ ((format (printf, 7, 8)));
 272 #else
 273 void portals_debug_msg(int subsys, int mask, char *file, const char *fn,
 274                        const int line, unsigned long stack,
 275                        const char *format, ...);
 276 #endif /* __GNUC__ */
 277 void portals_debug_set_level(unsigned int debug_level);
 278
 279 # define fprintf(a, format, b...) CDEBUG(D_OTHER, format , ## b)
 280 # define printf(format, b...) CDEBUG(D_OTHER, format , ## b)
 281 # define time(a) CURRENT_TIME
 282
 283 extern void kportal_daemonize (char *name);
 284 extern void kportal_blockallsigs (void);
 285
 286 #else  /* !__KERNEL__ */
 287 # include <stdio.h>
 288 # include <stdlib.h>
 289 #ifndef __CYGWIN__
 290 # include <stdint.h>
 291 #else
 292 # include <cygwin-ioctl.h>
 293 #endif
 294 # include <unistd.h>
 295 # include <time.h>
 296 # include <limits.h>
 297 # ifndef DEBUG_SUBSYSTEM
 298 #  define DEBUG_SUBSYSTEM S_UNDEFINED
 299 # endif
 300 # ifdef PORTAL_DEBUG
 301 #  undef NDEBUG
 302 #  include <assert.h>
 303 #  define LASSERT(e)     assert(e)
 304 #  define LASSERTF(cond, args...)                                              \
 305 do {                                                                           \
 306           if (!(cond))                                                         \
 307                 CERROR(args);                                                  \
 308           assert(cond);                                                        \
 309 } while (0)
 310 # else
 311 #  define LASSERT(e)
 312 #  define LASSERTF(cond, args...) do { } while (0)
 313 # endif
 314 # define printk(format, args...) printf (format, ## args)
 315 # define PORTAL_ALLOC(ptr, size) do { (ptr) = malloc(size); } while (0);
 316 # define PORTAL_FREE(a, b) do { free(a); } while (0);
 317 void portals_debug_dumplog(void);
 318 # define portals_debug_msg(subsys, mask, file, fn, line, stack, format, a...) \
 319     printf("%02x:%06x (@%lu %s:%s,l. %d %d %lu): " format,                    \
 320            (subsys), (mask), (long)time(0), file, fn, line,                   \
 321            getpid() , stack, ## a);
 322
 323 #undef CWARN
 324 #undef CERROR
 325 #define CWARN(format, a...) CDEBUG(D_WARNING, format, ## a)
 326 #define CERROR(format, a...) CDEBUG(D_ERROR, format, ## a)
 327 #endif
 328
 329 /* support decl needed both by kernel and liblustre */
 330 char *portals_nid2str(int nal, ptl_nid_t nid, char *str);
 331 char *portals_id2str(int nal, ptl_process_id_t nid, char *str);
 332
 333 #ifndef CURRENT_TIME
 334 # define CURRENT_TIME time(0)
 335 #endif
 336
 337 /******************************************************************************/
 338 /* Light-weight trace
 339  * Support for temporary event tracing with minimal Heisenberg effect. */
 340 #define LWT_SUPPORT  0
 341
 342 #define LWT_MEMORY   (16<<20)
 343
 344 #if !KLWT_SUPPORT
 345 # if defined(__KERNEL__)
 346 #  if !defined(BITS_PER_LONG)
 347 #   error "BITS_PER_LONG not defined"
 348 #  endif
 349 # elif !defined(__WORDSIZE)
 350 #  error "__WORDSIZE not defined"
 351 # else
 352 #  define BITS_PER_LONG __WORDSIZE
 353 # endif
 354
 355 /* kernel hasn't defined this? */
 356 typedef struct {
 357         long long   lwte_when;
 358         char       *lwte_where;
 359         void       *lwte_task;
 360         long        lwte_p1;
 361         long        lwte_p2;
 362         long        lwte_p3;
 363         long        lwte_p4;
 364 # if BITS_PER_LONG > 32
 365         long        lwte_pad;
 366 # endif
 367 } lwt_event_t;
 368 #endif /* !KLWT_SUPPORT */
 369
 370 #if LWT_SUPPORT
 371 # ifdef __KERNEL__
 372 #  if !KLWT_SUPPORT
 373
 374 typedef struct _lwt_page {
 375         struct list_head     lwtp_list;
 376         struct page         *lwtp_page;
 377         lwt_event_t         *lwtp_events;
 378 } lwt_page_t;
 379
 380 typedef struct {
 381         int                lwtc_current_index;
 382         lwt_page_t        *lwtc_current_page;
 383 } lwt_cpu_t;
 384
 385 extern int       lwt_enabled;
 386 extern lwt_cpu_t lwt_cpus[];
 387
 388 /* Note that we _don't_ define LWT_EVENT at all if LWT_SUPPORT isn't set.
 389  * This stuff is meant for finding specific problems; it never stays in
 390  * production code... */
 391
 392 #define LWTSTR(n)       #n
 393 #define LWTWHERE(f,l)   f ":" LWTSTR(l)
 394 #define LWT_EVENTS_PER_PAGE (PAGE_SIZE / sizeof (lwt_event_t))
 395
 396 #define LWT_EVENT(p1, p2, p3, p4)                                       \
 397 do {                                                                    \
 398         unsigned long    flags;                                         \
 399         lwt_cpu_t       *cpu;                                           \
 400         lwt_page_t      *p;                                             \
 401         lwt_event_t     *e;                                             \
 402                                                                         \
 403         if (lwt_enabled) {                                              \
 404                 local_irq_save (flags);                                 \
 405                                                                         \
 406                 cpu = &lwt_cpus[smp_processor_id()];                    \
 407                 p = cpu->lwtc_current_page;                             \
 408                 e = &p->lwtp_events[cpu->lwtc_current_index++];         \
 409                                                                         \
 410                 if (cpu->lwtc_current_index >= LWT_EVENTS_PER_PAGE) {   \
 411                         cpu->lwtc_current_page =                        \
 412                                 list_entry (p->lwtp_list.next,          \
 413                                             lwt_page_t, lwtp_list);     \
 414                         cpu->lwtc_current_index = 0;                    \
 415                 }                                                       \
 416                                                                         \
 417                 e->lwte_when  = get_cycles();                           \
 418                 e->lwte_where = LWTWHERE(__FILE__,__LINE__);            \
 419                 e->lwte_task  = current;                                \
 420                 e->lwte_p1    = (long)(p1);                             \
 421                 e->lwte_p2    = (long)(p2);                             \
 422                 e->lwte_p3    = (long)(p3);                             \
 423                 e->lwte_p4    = (long)(p4);                             \
 424                                                                         \
 425                 local_irq_restore (flags);                              \
 426         }                                                               \
 427 } while (0)
 428
 429 #endif /* !KLWT_SUPPORT */
 430
 431 extern int  lwt_init (void);
 432 extern void lwt_fini (void);
 433 extern int  lwt_lookup_string (int *size, char *knlptr,
 434                                char *usrptr, int usrsize);
 435 extern int  lwt_control (int enable, int clear);
 436 extern int  lwt_snapshot (cycles_t *now, int *ncpu, int *total_size,
 437                           void *user_ptr, int user_size);
 438 # else  /* __KERNEL__ */
 439 #  define LWT_EVENT(p1,p2,p3,p4)     /* no userland implementation yet */
 440 # endif /* __KERNEL__ */
 441 #endif /* LWT_SUPPORT */
 442
 443 struct portals_device_userstate
 444 {
 445         int          pdu_memhog_pages;
 446         struct page *pdu_memhog_root_page;
 447 };
 448
 449 #include <linux/portals_lib.h>
 450
 451 /*
 452  * USER LEVEL STUFF BELOW
 453  */
 454
 455 #define PORTAL_IOCTL_VERSION 0x00010007
 456 #define PING_SYNC       0
 457 #define PING_ASYNC      1
 458
 459 struct portal_ioctl_hdr {
 460         __u32 ioc_len;
 461         __u32 ioc_version;
 462 };
 463
 464 struct portals_debug_ioctl_data
 465 {
 466         struct portal_ioctl_hdr hdr;
 467         unsigned int subs;
 468         unsigned int debug;
 469 };
 470
 471 #define PORTAL_IOC_INIT(data)                           \
 472 do {                                                    \
 473         memset(&data, 0, sizeof(data));                 \
 474         data.ioc_version = PORTAL_IOCTL_VERSION;        \
 475         data.ioc_len = sizeof(data);                    \
 476 } while (0)
 477
 478 /* FIXME check conflict with lustre_lib.h */
 479 #define PTL_IOC_DEBUG_MASK             _IOWR('f', 250, long)
 480
 481 static inline int portal_ioctl_packlen(struct portal_ioctl_data *data)
 482 {
 483         int len = sizeof(*data);
 484         len += size_round(data->ioc_inllen1);
 485         len += size_round(data->ioc_inllen2);
 486         return len;
 487 }
 488
 489 static inline int portal_ioctl_is_invalid(struct portal_ioctl_data *data)
 490 {
 491         if (data->ioc_len > (1<<30)) {
 492                 CERROR ("PORTALS ioctl: ioc_len larger than 1<<30\n");
 493                 return 1;
 494         }
 495         if (data->ioc_inllen1 > (1<<30)) {
 496                 CERROR ("PORTALS ioctl: ioc_inllen1 larger than 1<<30\n");
 497                 return 1;
 498         }
 499         if (data->ioc_inllen2 > (1<<30)) {
 500                 CERROR ("PORTALS ioctl: ioc_inllen2 larger than 1<<30\n");
 501                 return 1;
 502         }
 503         if (data->ioc_inlbuf1 && !data->ioc_inllen1) {
 504                 CERROR ("PORTALS ioctl: inlbuf1 pointer but 0 length\n");
 505                 return 1;
 506         }
 507         if (data->ioc_inlbuf2 && !data->ioc_inllen2) {
 508                 CERROR ("PORTALS ioctl: inlbuf2 pointer but 0 length\n");
 509                 return 1;
 510         }
 511         if (data->ioc_pbuf1 && !data->ioc_plen1) {
 512                 CERROR ("PORTALS ioctl: pbuf1 pointer but 0 length\n");
 513                 return 1;
 514         }
 515         if (data->ioc_pbuf2 && !data->ioc_plen2) {
 516                 CERROR ("PORTALS ioctl: pbuf2 pointer but 0 length\n");
 517                 return 1;
 518         }
 519         if (data->ioc_plen1 && !data->ioc_pbuf1) {
 520                 CERROR ("PORTALS ioctl: plen1 nonzero but no pbuf1 pointer\n");
 521                 return 1;
 522         }
 523         if (data->ioc_plen2 && !data->ioc_pbuf2) {
 524                 CERROR ("PORTALS ioctl: plen2 nonzero but no pbuf2 pointer\n");
 525                 return 1;
 526         }
 527         if (portal_ioctl_packlen(data) != data->ioc_len ) {
 528                 CERROR ("PORTALS ioctl: packlen != ioc_len\n");
 529                 return 1;
 530         }
 531         if (data->ioc_inllen1 &&
 532             data->ioc_bulk[data->ioc_inllen1 - 1] != '\0') {
 533                 CERROR ("PORTALS ioctl: inlbuf1 not 0 terminated\n");
 534                 return 1;
 535         }
 536         if (data->ioc_inllen2 &&
 537             data->ioc_bulk[size_round(data->ioc_inllen1) +
 538                            data->ioc_inllen2 - 1] != '\0') {
 539                 CERROR ("PORTALS ioctl: inlbuf2 not 0 terminated\n");
 540                 return 1;
 541         }
 542         return 0;
 543 }
 544
 545 #ifndef __KERNEL__
 546 static inline int portal_ioctl_pack(struct portal_ioctl_data *data, char **pbuf,
 547                                     int max)
 548 {
 549         char *ptr;
 550         struct portal_ioctl_data *overlay;
 551         data->ioc_len = portal_ioctl_packlen(data);
 552         data->ioc_version = PORTAL_IOCTL_VERSION;
 553
 554         if (*pbuf && portal_ioctl_packlen(data) > max)
 555                 return 1;
 556         if (*pbuf == NULL) {
 557                 *pbuf = malloc(data->ioc_len);
 558         }
 559         if (!*pbuf)
 560                 return 1;
 561         overlay = (struct portal_ioctl_data *)*pbuf;
 562         memcpy(*pbuf, data, sizeof(*data));
 563
 564         ptr = overlay->ioc_bulk;
 565         if (data->ioc_inlbuf1)
 566                 LOGL(data->ioc_inlbuf1, data->ioc_inllen1, ptr);
 567         if (data->ioc_inlbuf2)
 568                 LOGL(data->ioc_inlbuf2, data->ioc_inllen2, ptr);
 569         if (portal_ioctl_is_invalid(overlay))
 570                 return 1;
 571
 572         return 0;
 573 }
 574 #else
 575 #include <asm/uaccess.h>
 576
 577 /* buffer MUST be at least the size of portal_ioctl_hdr */
 578 static inline int portal_ioctl_getdata(char *buf, char *end, void *arg)
 579 {
 580         struct portal_ioctl_hdr *hdr;
 581         struct portal_ioctl_data *data;
 582         int err;
 583         ENTRY;
 584
 585         hdr = (struct portal_ioctl_hdr *)buf;
 586         data = (struct portal_ioctl_data *)buf;
 587
 588         err = copy_from_user(buf, (void *)arg, sizeof(*hdr));
 589         if (err)
 590                 RETURN(err);
 591
 592         if (hdr->ioc_version != PORTAL_IOCTL_VERSION) {
 593                 CERROR("PORTALS: version mismatch kernel vs application\n");
 594                 RETURN(-EINVAL);
 595         }
 596
 597         if (hdr->ioc_len + buf >= end) {
 598                 CERROR("PORTALS: user buffer exceeds kernel buffer\n");
 599                 RETURN(-EINVAL);
 600         }
 601
 602
 603         if (hdr->ioc_len < sizeof(struct portal_ioctl_data)) {
 604                 CERROR("PORTALS: user buffer too small for ioctl\n");
 605                 RETURN(-EINVAL);
 606         }
 607
 608         err = copy_from_user(buf, (void *)arg, hdr->ioc_len);
 609         if (err)
 610                 RETURN(err);
 611
 612         if (portal_ioctl_is_invalid(data)) {
 613                 CERROR("PORTALS: ioctl not correctly formatted\n");
 614                 RETURN(-EINVAL);
 615         }
 616
 617         if (data->ioc_inllen1)
 618                 data->ioc_inlbuf1 = &data->ioc_bulk[0];
 619
 620         if (data->ioc_inllen2)
 621                 data->ioc_inlbuf2 = &data->ioc_bulk[0] +
 622                         size_round(data->ioc_inllen1);
 623
 624         RETURN(0);
 625 }
 626 #endif
 627
 628 /* ioctls for manipulating snapshots 30- */
 629 #define IOC_PORTAL_TYPE                   'e'
 630 #define IOC_PORTAL_MIN_NR                 30
 631
 632 #define IOC_PORTAL_PING                    _IOWR('e', 30, long)
 633
 634 #define IOC_PORTAL_CLEAR_DEBUG             _IOWR('e', 32, long)
 635 #define IOC_PORTAL_MARK_DEBUG              _IOWR('e', 33, long)
 636 #define IOC_PORTAL_PANIC                   _IOWR('e', 34, long)
 637 #define IOC_PORTAL_NAL_CMD                 _IOWR('e', 35, long)
 638 #define IOC_PORTAL_GET_NID                 _IOWR('e', 36, long)
 639 #define IOC_PORTAL_FAIL_NID                _IOWR('e', 37, long)
 640
 641 #define IOC_PORTAL_LWT_CONTROL             _IOWR('e', 39, long)
 642 #define IOC_PORTAL_LWT_SNAPSHOT            _IOWR('e', 40, long)
 643 #define IOC_PORTAL_LWT_LOOKUP_STRING       _IOWR('e', 41, long)
 644 #define IOC_PORTAL_MEMHOG                  _IOWR('e', 42, long)
 645 #define IOC_PORTAL_MAX_NR                             42
 646
 647 enum {
 648         QSWNAL    = 1,
 649         SOCKNAL   = 2,
 650         GMNAL     = 3,
 651         /*          4 unused */
 652         TCPNAL    = 5,
 653         ROUTER    = 6,
 654         OPENIBNAL = 7,
 655         IIBNAL    = 8,
 656         NAL_ENUM_END_MARKER
 657 };
 658
 659 #define PTL_NALFMT_SIZE             32 /* %u:%u.%u.%u.%u,%u (10+4+4+4+3+5+1) */
 660
 661 #define NAL_MAX_NR (NAL_ENUM_END_MARKER - 1)
 662
 663 #define NAL_CMD_REGISTER_PEER_FD     100
 664 #define NAL_CMD_CLOSE_CONNECTION     101
 665 #define NAL_CMD_REGISTER_MYNID       102
 666 #define NAL_CMD_PUSH_CONNECTION      103
 667 #define NAL_CMD_GET_CONN             104
 668 #define NAL_CMD_DEL_PEER             105
 669 #define NAL_CMD_ADD_PEER             106
 670 #define NAL_CMD_GET_PEER             107
 671 #define NAL_CMD_GET_TXDESC           108
 672 #define NAL_CMD_ADD_ROUTE            109
 673 #define NAL_CMD_DEL_ROUTE            110
 674 #define NAL_CMD_GET_ROUTE            111
 675 #define NAL_CMD_NOTIFY_ROUTER        112
 676 #define NAL_CMD_ADD_INTERFACE        113
 677 #define NAL_CMD_DEL_INTERFACE        114
 678 #define NAL_CMD_GET_INTERFACE        115
 679
 680
 681 enum {
 682         DEBUG_DAEMON_START       =  1,
 683         DEBUG_DAEMON_STOP        =  2,
 684         DEBUG_DAEMON_PAUSE       =  3,
 685         DEBUG_DAEMON_CONTINUE    =  4,
 686 };
 687
 688
 689 enum cfg_record_type {
 690         PORTALS_CFG_TYPE = 1,
 691         LUSTRE_CFG_TYPE = 123,
 692 };
 693
 694 typedef int (*cfg_record_cb_t)(enum cfg_record_type, int len, void *data);
 695
 696 #ifdef __CYGWIN__
 697 # ifndef BITS_PER_LONG
 698 #  if (~0UL) == 0xffffffffUL
 699 #   define BITS_PER_LONG 32
 700 #  else
 701 #   define BITS_PER_LONG 64
 702 #  endif
 703 # endif
 704 #endif
 705
 706 #if BITS_PER_LONG > 32
 707 # define LI_POISON ((int)0x5a5a5a5a5a5a5a5a)
 708 # define LL_POISON ((long)0x5a5a5a5a5a5a5a5a)
 709 # define LP_POISON ((void *)(long)0x5a5a5a5a5a5a5a5a)
 710 #else
 711 # define LI_POISON ((int)0x5a5a5a5a)
 712 # define LL_POISON ((long)0x5a5a5a5a)
 713 # define LP_POISON ((void *)(long)0x5a5a5a5a)
 714 #endif
 715
 716 #if defined(__x86_64__)
 717 # define LPU64 "%Lu"
 718 # define LPD64 "%Ld"
 719 # define LPX64 "%#Lx"
 720 # define LPSZ  "%lu"
 721 # define LPSSZ "%ld"
 722 #elif (BITS_PER_LONG == 32 || __WORDSIZE == 32)
 723 # define LPU64 "%Lu"
 724 # define LPD64 "%Ld"
 725 # define LPX64 "%#Lx"
 726 # define LPSZ  "%u"
 727 # define LPSSZ "%d"
 728 #elif (BITS_PER_LONG == 64 || __WORDSIZE == 64)
 729 # define LPU64 "%lu"
 730 # define LPD64 "%ld"
 731 # define LPX64 "%#lx"
 732 # define LPSZ  "%lu"
 733 # define LPSSZ "%ld"
 734 #endif
 735 #ifndef LPU64
 736 # error "No word size defined"
 737 #endif
 738
 739 /* lustre_id output helper macros */
 740 #define DLID4   "%lu/%lu/%lu/%lu"
 741
 742 #define OLID4(id)                              \
 743     (unsigned long)(id)->li_fid.lf_id,         \
 744     (unsigned long)(id)->li_fid.lf_group,      \
 745     (unsigned long)(id)->li_stc.u.e3s.l3s_ino, \
 746     (unsigned long)(id)->li_stc.u.e3s.l3s_gen
 747
 748 #endif
 749