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