lustre/portals/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 #define PORTAL_DEBUG
   8
   9 #ifndef offsetof
  10 # define offsetof(typ,memb)     ((int)((char *)&(((typ *)0)->memb)))
  11 #endif
  12
  13 #define LOWEST_BIT_SET(x)       ((x) & ~((x) - 1))
  14
  15 /*
  16  *  Debugging
  17  */
  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)
  47
  48 /* If you change these values, please keep portals/utils/debug.c
  49  * up to date! */
  50
  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)
  74
  75 #ifdef __KERNEL__
  76 # include <linux/sched.h> /* THREAD_SIZE */
  77 #else
  78 # ifndef THREAD_SIZE /* x86_64 has THREAD_SIZE in userspace */
  79 #  define THREAD_SIZE 8192
  80 # endif
  81 #endif
  82
  83 #define LUSTRE_TRACE_SIZE (THREAD_SIZE >> 5)
  84
  85 #ifdef __KERNEL__
  86 # ifdef  __ia64__
  87 #  define CDEBUG_STACK (THREAD_SIZE -                                      \
  88                         ((unsigned long)__builtin_dwarf_cfa() &            \
  89                          (THREAD_SIZE - 1)))
  90 # else
  91 #  define CDEBUG_STACK (THREAD_SIZE -                                      \
  92                         ((unsigned long)__builtin_frame_address(0) &       \
  93                          (THREAD_SIZE - 1)))
  94 # endif
  95
  96 #define CHECK_STACK(stack)                                                    \
  97         do {                                                                  \
  98                 if ((stack) > 3*THREAD_SIZE/4 && (stack) > portal_stack) {    \
  99                         portals_debug_msg(DEBUG_SUBSYSTEM, D_ERROR,           \
 100                                           __FILE__, __FUNCTION__, __LINE__,   \
 101                                           (stack),                            \
 102                                           "maximum lustre stack %u\n",        \
 103                                           portal_stack = (stack));            \
 104                       /*panic("LBUG");*/                                      \
 105                 }                                                             \
 106         } while (0)
 107 #else /* __KERNEL__ */
 108 #define CHECK_STACK(stack) do { } while(0)
 109 #define CDEBUG_STACK (0L)
 110 #endif /* __KERNEL__ */
 111
 112 #if 1
 113 #define CDEBUG(mask, format, a...)                                            \
 114 do {                                                                          \
 115         if (portal_cerror == 0)                                               \
 116                 break;                                                        \
 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);                \
 124 } while (0)
 125
 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)
 129
 130 #define GOTO(label, rc)                                                 \
 131 do {                                                                    \
 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);                                 \
 136         goto label;                                                     \
 137 } while (0)
 138
 139 #define RETURN(rc)                                                      \
 140 do {                                                                    \
 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;                                             \
 145 } while (0)
 146
 147 #define ENTRY                                                           \
 148 do {                                                                    \
 149         CDEBUG(D_TRACE, "Process entered\n");                           \
 150 } while (0)
 151
 152 #define EXIT                                                            \
 153 do {                                                                    \
 154         CDEBUG(D_TRACE, "Process leaving\n");                           \
 155 } while(0)
 156 #else
 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)
 165 #endif
 166
 167 #ifdef __KERNEL__
 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>
 178
 179 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
 180 #define schedule_work schedule_task
 181 #define prepare_work(wq,cb,cbdata)                                            \
 182 do {                                                                          \
 183         INIT_TQUEUE((wq), 0, 0);                                              \
 184         PREPARE_TQUEUE((wq), (cb), (cbdata));                                 \
 185 } while (0)
 186
 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)
 192 {
 193         if (current->need_resched)
 194                schedule ();
 195 }
 196 #define work_struct_t       struct tq_struct
 197
 198 #else
 199
 200 #define prepare_work(wq,cb,cbdata)                                            \
 201 do {                                                                          \
 202         INIT_WORK((wq), (void *)(cb), (void *)(cbdata));                      \
 203 } while (0)
 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)
 209 {
 210         cond_resched();
 211 }
 212 #define work_struct_t      struct work_struct
 213
 214 #endif /* LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0) */
 215
 216 #ifdef PORTAL_DEBUG
 217 extern void kportal_assertion_failed(char *expr, char *file, const char *func,
 218                                      const int line);
 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...)                                                \
 225         do {                                                                  \
 226                 if (unlikely(!(cond))) {                                      \
 227                         portals_debug_msg(0, D_EMERG,  __FILE__, __FUNCTION__,\
 228                                           __LINE__,  CDEBUG_STACK,            \
 229                                           "ASSERTION(" #cond ") failed:" fmt);\
 230                         LBUG();                                               \
 231                 }                                                             \
 232         } while (0)
 233
 234 #else
 235 #define LASSERT(e)
 236 #define LASSERTF(cond, fmt...) do { } while (0)
 237 #endif
 238
 239 #ifdef __arch_um__
 240 #define LBUG_WITH_LOC(file, func, line)                                 \
 241 do {                                                                    \
 242         CEMERG("LBUG - trying to dump log to /tmp/lustre-log\n");       \
 243         portals_debug_dumplog();                                        \
 244         portals_run_lbug_upcall(file, func, line);                      \
 245         panic("LBUG");                                                  \
 246 } while (0)
 247 #else
 248 #define LBUG_WITH_LOC(file, func, line)                                 \
 249 do {                                                                    \
 250         CEMERG("LBUG\n");                                               \
 251         portals_debug_dumplog();                                        \
 252         portals_run_lbug_upcall(file, func, line);                      \
 253         set_task_state(current, TASK_UNINTERRUPTIBLE);                  \
 254         schedule();                                                     \
 255 } while (0)
 256 #endif /* __arch_um__ */
 257
 258 #define LBUG() LBUG_WITH_LOC(__FILE__, __FUNCTION__, __LINE__)
 259
 260 /*
 261  * Memory
 262  */
 263 #ifdef PORTAL_DEBUG
 264 extern atomic_t portal_kmemory;
 265
 266 # define portal_kmem_inc(ptr, size)                                           \
 267 do {                                                                          \
 268         atomic_add(size, &portal_kmemory);                                    \
 269 } while (0)
 270
 271 # define portal_kmem_dec(ptr, size) do {                                      \
 272         atomic_sub(size, &portal_kmemory);                                    \
 273 } while (0)
 274
 275 #else
 276 # define portal_kmem_inc(ptr, size) do {} while (0)
 277 # define portal_kmem_dec(ptr, size) do {} while (0)
 278 #endif /* PORTAL_DEBUG */
 279
 280 #define PORTAL_VMALLOC_SIZE        16384
 281
 282 #ifndef GFP_MEMALLOC
 283 #define GFP_MEMALLOC 0
 284 #endif
 285
 286 #define PORTAL_ALLOC_GFP(ptr, size, mask)                                 \
 287 do {                                                                      \
 288         LASSERT (!in_interrupt());                                        \
 289         if ((size) > PORTAL_VMALLOC_SIZE)                                 \
 290                 (ptr) = vmalloc(size);                                    \
 291         else                                                              \
 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));                     \
 298         } else {                                                          \
 299                 portal_kmem_inc((ptr), (size));                           \
 300                 memset((ptr), 0, (size));                                 \
 301         }                                                                 \
 302         CDEBUG(D_MALLOC, "kmalloced '" #ptr "': %d at %p (tot %d).\n",    \
 303                (int)(size), (ptr), atomic_read (&portal_kmemory));        \
 304 } while (0)
 305
 306 #define PORTAL_ALLOC(ptr, size) \
 307         PORTAL_ALLOC_GFP(ptr, size, (GFP_KERNEL | GFP_MEMALLOC))
 308
 309 #define PORTAL_ALLOC_ATOMIC(ptr, size) \
 310         PORTAL_ALLOC_GFP(ptr, size, (GFP_ATOMIC | GFP_MEMALLOC))
 311
 312 #define PORTAL_FREE(ptr, size)                                          \
 313 do {                                                                    \
 314         int s = (size);                                                 \
 315         if ((ptr) == NULL) {                                            \
 316                 CERROR("PORTALS: free NULL '" #ptr "' (%d bytes) at "   \
 317                        "%s:%d\n", s, __FILE__, __LINE__);               \
 318                 break;                                                  \
 319         }                                                               \
 320         if (s > PORTAL_VMALLOC_SIZE)                                    \
 321                 vfree(ptr);                                             \
 322         else                                                            \
 323                 kfree(ptr);                                             \
 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));                 \
 327 } while (0)
 328
 329 #ifndef SLAB_MEMALLOC
 330 #define SLAB_MEMALLOC 0
 331 #endif
 332
 333 #define PORTAL_SLAB_ALLOC(ptr, slab, size)                                \
 334 do {                                                                      \
 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__,  \
 340                        __LINE__);                                         \
 341                 CERROR("PORTALS: %d total bytes allocated by portals\n",  \
 342                        atomic_read(&portal_kmemory));                     \
 343         } else {                                                          \
 344                 portal_kmem_inc((ptr), (size));                           \
 345                 memset((ptr), 0, (size));                                 \
 346         }                                                                 \
 347         CDEBUG(D_MALLOC, "kmalloced '" #ptr "': %d at %p (tot %d).\n",    \
 348                (int)(size), (ptr), atomic_read(&portal_kmemory));         \
 349 } while (0)
 350
 351 #define PORTAL_SLAB_FREE(ptr, slab, size)                               \
 352 do {                                                                    \
 353         int s = (size);                                                 \
 354         if ((ptr) == NULL) {                                            \
 355                 CERROR("PORTALS: free NULL '" #ptr "' (%d bytes) at "   \
 356                        "%s:%d\n", s, __FILE__, __LINE__);               \
 357                 break;                                                  \
 358         }                                                               \
 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));                \
 364 } while (0)
 365
 366 /* ------------------------------------------------------------------- */
 367
 368 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
 369
 370 #define PORTAL_SYMBOL_REGISTER(x) inter_module_register(#x, THIS_MODULE, &x)
 371 #define PORTAL_SYMBOL_UNREGISTER(x) inter_module_unregister(#x)
 372
 373 #define PORTAL_SYMBOL_GET(x) ((typeof(&x))inter_module_get(#x))
 374 #define PORTAL_SYMBOL_PUT(x) inter_module_put(#x)
 375
 376 #define PORTAL_MODULE_USE       MOD_INC_USE_COUNT
 377 #define PORTAL_MODULE_UNUSE     MOD_DEC_USE_COUNT
 378 #else
 379
 380 #define PORTAL_SYMBOL_REGISTER(x)
 381 #define PORTAL_SYMBOL_UNREGISTER(x)
 382
 383 #define PORTAL_SYMBOL_GET(x) symbol_get(x)
 384 #define PORTAL_SYMBOL_PUT(x) symbol_put(x)
 385
 386 #define PORTAL_MODULE_USE       try_module_get(THIS_MODULE)
 387 #define PORTAL_MODULE_UNUSE     module_put(THIS_MODULE)
 388
 389 #endif
 390
 391 /******************************************************************************/
 392 /* Kernel Portals Router interface */
 393
 394 typedef void (*kpr_fwd_callback_t)(void *arg, int error); // completion callback
 395
 396 /* space for routing targets to stash "stuff" in a forwarded packet */
 397 typedef union {
 398         long long        _alignment;
 399         void            *_space[16];            /* scale with CPU arch */
 400 } kprfd_scratch_t;
 401
 402 /* Kernel Portals Routing Forwarded message Descriptor */
 403 typedef struct {
 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
 414 } kpr_fwd_desc_t;
 415
 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);
 418
 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;
 426
 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,
 432                                    void **router_arg);
 433
 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
 436          * payload there */
 437         int     (*kprri_lookup) (void *router_arg, ptl_nid_t nid, int nob,
 438                                  ptl_nid_t *gateway_nid);
 439
 440         /* hand a packet over to the router for forwarding */
 441         kpr_fwd_t kprri_fwd_start;
 442
 443         /* hand a packet back to the router for completion */
 444         void    (*kprri_fwd_done) (void *router_arg, kpr_fwd_desc_t *fwd,
 445                                    int error);
 446
 447         /* notify the router about peer state */
 448         void    (*kprri_notify) (void *router_arg, ptl_nid_t peer,
 449                                  int alive, time_t when);
 450
 451         /* the calling NAL is shutting down */
 452         void    (*kprri_shutdown) (void *router_arg);
 453
 454         /* deregister the calling NAL with the router */
 455         void    (*kprri_deregister) (void *router_arg);
 456
 457 } kpr_router_interface_t;
 458
 459 /* Convenient struct for NAL to stash router interface/args */
 460 typedef struct {
 461         kpr_router_interface_t  *kpr_interface;
 462         void                    *kpr_arg;
 463 } kpr_router_t;
 464
 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,
 472                                    ptl_nid_t *gateway,
 473                                    ptl_nid_t *lo_nid, ptl_nid_t *hi_nid,
 474                                    int *alive);
 475         int     (*kprci_notify)(int gateway_nal, ptl_nid_t gateway_nid,
 476                                 int alive, time_t when);
 477 } kpr_control_interface_t;
 478
 479 extern kpr_control_interface_t  kpr_control_interface;
 480 extern kpr_router_interface_t   kpr_router_interface;
 481
 482 static inline int
 483 kpr_register (kpr_router_t *router, kpr_nal_interface_t *nalif)
 484 {
 485         int    rc;
 486
 487         router->kpr_interface = PORTAL_SYMBOL_GET (kpr_router_interface);
 488         if (router->kpr_interface == NULL)
 489                 return (-ENOENT);
 490
 491         rc = (router->kpr_interface)->kprri_register (nalif, &router->kpr_arg);
 492         if (rc != 0)
 493                 router->kpr_interface = NULL;
 494
 495         PORTAL_SYMBOL_PUT (kpr_router_interface);
 496         return (rc);
 497 }
 498
 499 static inline int
 500 kpr_routing (kpr_router_t *router)
 501 {
 502         return (router->kpr_interface != NULL);
 503 }
 504
 505 static inline int
 506 kpr_lookup (kpr_router_t *router, ptl_nid_t nid, int nob, ptl_nid_t *gateway_nid)
 507 {
 508         if (!kpr_routing (router))
 509                 return (-ENETUNREACH);
 510
 511         return (router->kpr_interface->kprri_lookup(router->kpr_arg, nid, nob,
 512                                                     gateway_nid));
 513 }
 514
 515 static inline void
 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)
 519 {
 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;
 527 }
 528
 529 static inline void
 530 kpr_fwd_start (kpr_router_t *router, kpr_fwd_desc_t *fwd)
 531 {
 532         if (!kpr_routing (router))
 533                 fwd->kprfd_callback (fwd->kprfd_callback_arg, -ENETUNREACH);
 534         else
 535                 router->kpr_interface->kprri_fwd_start (router->kpr_arg, fwd);
 536 }
 537
 538 static inline void
 539 kpr_fwd_done (kpr_router_t *router, kpr_fwd_desc_t *fwd, int error)
 540 {
 541         LASSERT (kpr_routing (router));
 542         router->kpr_interface->kprri_fwd_done (router->kpr_arg, fwd, error);
 543 }
 544
 545 static inline void
 546 kpr_notify (kpr_router_t *router,
 547             ptl_nid_t peer, int alive, time_t when)
 548 {
 549         if (!kpr_routing (router))
 550                 return;
 551
 552         router->kpr_interface->kprri_notify(router->kpr_arg, peer, alive, when);
 553 }
 554
 555 static inline void
 556 kpr_shutdown (kpr_router_t *router)
 557 {
 558         if (kpr_routing (router))
 559                 router->kpr_interface->kprri_shutdown (router->kpr_arg);
 560 }
 561
 562 static inline void
 563 kpr_deregister (kpr_router_t *router)
 564 {
 565         if (!kpr_routing (router))
 566                 return;
 567         router->kpr_interface->kprri_deregister (router->kpr_arg);
 568         router->kpr_interface = NULL;
 569 }
 570
 571 /******************************************************************************/
 572
 573 #ifdef PORTALS_PROFILING
 574 #define prof_enum(FOO) PROF__##FOO
 575 enum {
 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),
 581         prof_enum(memcpy),
 582         prof_enum(lib_finalize),
 583         prof_enum(pingcli_time),
 584         prof_enum(gmnal_send),
 585         prof_enum(gmnal_recv),
 586         MAX_PROFS
 587 };
 588
 589 struct prof_ent {
 590         char *str;
 591         /* hrmph.  wrap-tastic. */
 592         u32       starts;
 593         u32       finishes;
 594         cycles_t  total_cycles;
 595         cycles_t  start;
 596         cycles_t  end;
 597 };
 598
 599 extern struct prof_ent prof_ents[MAX_PROFS];
 600
 601 #define PROF_START(FOO)                                         \
 602         do {                                                    \
 603                 struct prof_ent *pe = &prof_ents[PROF__##FOO];  \
 604                 pe->starts++;                                   \
 605                 pe->start = get_cycles();                       \
 606         } while (0)
 607
 608 #define PROF_FINISH(FOO)                                        \
 609         do {                                                    \
 610                 struct prof_ent *pe = &prof_ents[PROF__##FOO];  \
 611                 pe->finishes++;                                 \
 612                 pe->end = get_cycles();                         \
 613                 pe->total_cycles += (pe->end - pe->start);      \
 614         } while (0)
 615 #else /* !PORTALS_PROFILING */
 616 #define PROF_START(FOO) do {} while(0)
 617 #define PROF_FINISH(FOO) do {} while(0)
 618 #endif /* PORTALS_PROFILING */
 619
 620 /* debug.c */
 621 extern spinlock_t stack_backtrace_lock;
 622
 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);
 634 #if (__GNUC__)
 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
 637  * types.
 638  */
 639 #ifdef printf
 640 # warning printf has been defined as a macro...
 641 # undef printf
 642 #endif
 643 void portals_debug_msg(int subsys, int mask, char *file, const char *fn,
 644                        const int line, unsigned long stack,
 645                        char *format, ...)
 646         __attribute__ ((format (printf, 7, 8)));
 647 #else
 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);
 653
 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
 657
 658 extern void kportal_daemonize (char *name);
 659 extern void kportal_blockallsigs (void);
 660
 661 #else  /* !__KERNEL__ */
 662 # include <stdio.h>
 663 # include <stdlib.h>
 664 #ifndef __CYGWIN__
 665 # include <stdint.h>
 666 #else
 667 # include <cygwin-ioctl.h>
 668 #endif
 669 # include <unistd.h>
 670 # include <time.h>
 671 # include <asm/types.h>
 672 # ifndef DEBUG_SUBSYSTEM
 673 #  define DEBUG_SUBSYSTEM S_UNDEFINED
 674 # endif
 675 # ifdef PORTAL_DEBUG
 676 #  undef NDEBUG
 677 #  include <assert.h>
 678 #  define LASSERT(e)     assert(e)
 679 #  define LASSERTF(cond, args...)     assert(cond)
 680 # else
 681 #  define LASSERT(e)
 682 #  define LASSERTF(cond, args...) do { } while (0)
 683 # endif
 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);
 691 #endif
 692
 693 /* support decl needed both by kernel and liblustre */
 694 char *portals_nid2str(int nal, ptl_nid_t nid, char *str);
 695
 696 #ifndef CURRENT_TIME
 697 # define CURRENT_TIME time(0)
 698 #endif
 699
 700 /******************************************************************************/
 701 /* Light-weight trace
 702  * Support for temporary event tracing with minimal Heisenberg effect. */
 703 #define LWT_SUPPORT  0
 704
 705 #define LWT_MEMORY   (64<<20)
 706 #define LWT_MAX_CPUS 4
 707
 708 typedef struct {
 709         cycles_t    lwte_when;
 710         char       *lwte_where;
 711         void       *lwte_task;
 712         long        lwte_p1;
 713         long        lwte_p2;
 714         long        lwte_p3;
 715         long        lwte_p4;
 716 #if BITS_PER_LONG > 32
 717         long        lwte_pad;
 718 #endif
 719 } lwt_event_t;
 720
 721 #if LWT_SUPPORT
 722 #ifdef __KERNEL__
 723 #define LWT_EVENTS_PER_PAGE (PAGE_SIZE / sizeof (lwt_event_t))
 724
 725 typedef struct _lwt_page {
 726         struct list_head     lwtp_list;
 727         struct page         *lwtp_page;
 728         lwt_event_t         *lwtp_events;
 729 } lwt_page_t;
 730
 731 typedef struct {
 732         int                lwtc_current_index;
 733         lwt_page_t        *lwtc_current_page;
 734 } lwt_cpu_t;
 735
 736 extern int       lwt_enabled;
 737 extern lwt_cpu_t lwt_cpus[];
 738
 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);
 746
 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... */
 750
 751 #define LWTSTR(n)       #n
 752 #define LWTWHERE(f,l)   f ":" LWTSTR(l)
 753
 754 #define LWT_EVENT(p1, p2, p3, p4)                                       \
 755 do {                                                                    \
 756         unsigned long    flags;                                         \
 757         lwt_cpu_t       *cpu;                                           \
 758         lwt_page_t      *p;                                             \
 759         lwt_event_t     *e;                                             \
 760                                                                         \
 761         local_irq_save (flags);                                         \
 762                                                                         \
 763         if (lwt_enabled) {                                              \
 764                 cpu = &lwt_cpus[smp_processor_id()];                    \
 765                 p = cpu->lwtc_current_page;                             \
 766                 e = &p->lwtp_events[cpu->lwtc_current_index++];         \
 767                                                                         \
 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;                    \
 773                 }                                                       \
 774                                                                         \
 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);                             \
 782         }                                                               \
 783                                                                         \
 784         local_irq_restore (flags);                                      \
 785 } while (0)
 786 #else  /* __KERNEL__ */
 787 #define LWT_EVENT(p1,p2,p3,p4)     /* no userland implementation yet */
 788 #endif /* __KERNEL__ */
 789 #endif /* LWT_SUPPORT */
 790
 791 struct portals_device_userstate
 792 {
 793         int          pdu_memhog_pages;
 794         struct page *pdu_memhog_root_page;
 795 };
 796
 797 #include <linux/portals_lib.h>
 798
 799 /*
 800  * USER LEVEL STUFF BELOW
 801  */
 802
 803 #define PORTALS_CFG_VERSION 0x00010001;
 804
 805 struct portals_cfg {
 806         __u32 pcfg_version;
 807         __u32 pcfg_command;
 808
 809         __u32 pcfg_nal;
 810         __u32 pcfg_flags;
 811
 812         __u32 pcfg_gw_nal;
 813         __u64 pcfg_nid;
 814         __u64 pcfg_nid2;
 815         __u64 pcfg_nid3;
 816         __u32 pcfg_id;
 817         __u32 pcfg_misc;
 818         __u32 pcfg_fd;
 819         __u32 pcfg_count;
 820         __u32 pcfg_size;
 821         __u32 pcfg_wait;
 822
 823         __u32 pcfg_plen1; /* buffers in userspace */
 824         char *pcfg_pbuf1;
 825         __u32 pcfg_plen2; /* buffers in userspace */
 826         char *pcfg_pbuf2;
 827 };
 828
 829 #define PCFG_INIT(pcfg, cmd)                            \
 830 do {                                                    \
 831         memset(&pcfg, 0, sizeof(pcfg));                 \
 832         pcfg.pcfg_version = PORTALS_CFG_VERSION;        \
 833         pcfg.pcfg_command = (cmd);                      \
 834                                                         \
 835 } while (0)
 836
 837 #define PORTAL_IOCTL_VERSION 0x00010007
 838 #define PING_SYNC       0
 839 #define PING_ASYNC      1
 840
 841 struct portal_ioctl_data {
 842         __u32 ioc_len;
 843         __u32 ioc_version;
 844         __u64 ioc_nid;
 845         __u64 ioc_nid2;
 846         __u64 ioc_nid3;
 847         __u32 ioc_count;
 848         __u32 ioc_nal;
 849         __u32 ioc_nal_cmd;
 850         __u32 ioc_fd;
 851         __u32 ioc_id;
 852
 853         __u32 ioc_flags;
 854         __u32 ioc_size;
 855
 856         __u32 ioc_wait;
 857         __u32 ioc_timeout;
 858         __u32 ioc_misc;
 859
 860         __u32 ioc_inllen1;
 861         char *ioc_inlbuf1;
 862         __u32 ioc_inllen2;
 863         char *ioc_inlbuf2;
 864
 865         __u32 ioc_plen1; /* buffers in userspace */
 866         char *ioc_pbuf1;
 867         __u32 ioc_plen2; /* buffers in userspace */
 868         char *ioc_pbuf2;
 869
 870         char ioc_bulk[0];
 871 };
 872
 873 struct portal_ioctl_hdr {
 874         __u32 ioc_len;
 875         __u32 ioc_version;
 876 };
 877
 878 struct portals_debug_ioctl_data
 879 {
 880         struct portal_ioctl_hdr hdr;
 881         unsigned int subs;
 882         unsigned int debug;
 883 };
 884
 885 #define PORTAL_IOC_INIT(data)                           \
 886 do {                                                    \
 887         memset(&data, 0, sizeof(data));                 \
 888         data.ioc_version = PORTAL_IOCTL_VERSION;        \
 889         data.ioc_len = sizeof(data);                    \
 890 } while (0)
 891
 892 /* FIXME check conflict with lustre_lib.h */
 893 #define PTL_IOC_DEBUG_MASK             _IOWR('f', 250, long)
 894
 895 static inline int portal_ioctl_packlen(struct portal_ioctl_data *data)
 896 {
 897         int len = sizeof(*data);
 898         len += size_round(data->ioc_inllen1);
 899         len += size_round(data->ioc_inllen2);
 900         return len;
 901 }
 902
 903 static inline int portal_ioctl_is_invalid(struct portal_ioctl_data *data)
 904 {
 905         if (data->ioc_len > (1<<30)) {
 906                 CERROR ("PORTALS ioctl: ioc_len larger than 1<<30\n");
 907                 return 1;
 908         }
 909         if (data->ioc_inllen1 > (1<<30)) {
 910                 CERROR ("PORTALS ioctl: ioc_inllen1 larger than 1<<30\n");
 911                 return 1;
 912         }
 913         if (data->ioc_inllen2 > (1<<30)) {
 914                 CERROR ("PORTALS ioctl: ioc_inllen2 larger than 1<<30\n");
 915                 return 1;
 916         }
 917         if (data->ioc_inlbuf1 && !data->ioc_inllen1) {
 918                 CERROR ("PORTALS ioctl: inlbuf1 pointer but 0 length\n");
 919                 return 1;
 920         }
 921         if (data->ioc_inlbuf2 && !data->ioc_inllen2) {
 922                 CERROR ("PORTALS ioctl: inlbuf2 pointer but 0 length\n");
 923                 return 1;
 924         }
 925         if (data->ioc_pbuf1 && !data->ioc_plen1) {
 926                 CERROR ("PORTALS ioctl: pbuf1 pointer but 0 length\n");
 927                 return 1;
 928         }
 929         if (data->ioc_pbuf2 && !data->ioc_plen2) {
 930                 CERROR ("PORTALS ioctl: pbuf2 pointer but 0 length\n");
 931                 return 1;
 932         }
 933         if (data->ioc_plen1 && !data->ioc_pbuf1) {
 934                 CERROR ("PORTALS ioctl: plen1 nonzero but no pbuf1 pointer\n");
 935                 return 1;
 936         }
 937         if (data->ioc_plen2 && !data->ioc_pbuf2) {
 938                 CERROR ("PORTALS ioctl: plen2 nonzero but no pbuf2 pointer\n");
 939                 return 1;
 940         }
 941         if (portal_ioctl_packlen(data) != data->ioc_len ) {
 942                 CERROR ("PORTALS ioctl: packlen != ioc_len\n");
 943                 return 1;
 944         }
 945         if (data->ioc_inllen1 &&
 946             data->ioc_bulk[data->ioc_inllen1 - 1] != '\0') {
 947                 CERROR ("PORTALS ioctl: inlbuf1 not 0 terminated\n");
 948                 return 1;
 949         }
 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");
 954                 return 1;
 955         }
 956         return 0;
 957 }
 958
 959 #ifndef __KERNEL__
 960 static inline int portal_ioctl_pack(struct portal_ioctl_data *data, char **pbuf,
 961                                     int max)
 962 {
 963         char *ptr;
 964         struct portal_ioctl_data *overlay;
 965         data->ioc_len = portal_ioctl_packlen(data);
 966         data->ioc_version = PORTAL_IOCTL_VERSION;
 967
 968         if (*pbuf && portal_ioctl_packlen(data) > max)
 969                 return 1;
 970         if (*pbuf == NULL) {
 971                 *pbuf = malloc(data->ioc_len);
 972         }
 973         if (!*pbuf)
 974                 return 1;
 975         overlay = (struct portal_ioctl_data *)*pbuf;
 976         memcpy(*pbuf, data, sizeof(*data));
 977
 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))
 984                 return 1;
 985
 986         return 0;
 987 }
 988 #else
 989 #include <asm/uaccess.h>
 990
 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)
 993 {
 994         struct portal_ioctl_hdr *hdr;
 995         struct portal_ioctl_data *data;
 996         int err;
 997         ENTRY;
 998
 999         hdr = (struct portal_ioctl_hdr *)buf;
1000         data = (struct portal_ioctl_data *)buf;
1001
1002         err = copy_from_user(buf, (void *)arg, sizeof(*hdr));
1003         if ( err ) {
1004                 EXIT;
1005                 return err;
1006         }
1007
1008         if (hdr->ioc_version != PORTAL_IOCTL_VERSION) {
1009                 CERROR ("PORTALS: version mismatch kernel vs application\n");
1010                 return -EINVAL;
1011         }
1012
1013         if (hdr->ioc_len + buf >= end) {
1014                 CERROR ("PORTALS: user buffer exceeds kernel buffer\n");
1015                 return -EINVAL;
1016         }
1017
1018
1019         if (hdr->ioc_len < sizeof(struct portal_ioctl_data)) {
1020                 CERROR ("PORTALS: user buffer too small for ioctl\n");
1021                 return -EINVAL;
1022         }
1023
1024         err = copy_from_user(buf, (void *)arg, hdr->ioc_len);
1025         if ( err ) {
1026                 EXIT;
1027                 return err;
1028         }
1029
1030         if (portal_ioctl_is_invalid(data)) {
1031                 CERROR ("PORTALS: ioctl not correctly formatted\n");
1032                 return -EINVAL;
1033         }
1034
1035         if (data->ioc_inllen1) {
1036                 data->ioc_inlbuf1 = &data->ioc_bulk[0];
1037         }
1038
1039         if (data->ioc_inllen2) {
1040                 data->ioc_inlbuf2 = &data->ioc_bulk[0] +
1041                         size_round(data->ioc_inllen1);
1042         }
1043
1044         EXIT;
1045         return 0;
1046 }
1047 #endif
1048
1049 /* ioctls for manipulating snapshots 30- */
1050 #define IOC_PORTAL_TYPE                   'e'
1051 #define IOC_PORTAL_MIN_NR                 30
1052
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
1067
1068 enum {
1069         QSWNAL  =  1,
1070         SOCKNAL,
1071         GMNAL,
1072         TOENAL,
1073         TCPNAL,
1074         SCIMACNAL,
1075         ROUTER,
1076         IBNAL,
1077         NAL_ENUM_END_MARKER
1078 };
1079
1080 #ifdef __KERNEL__
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;
1087 #endif
1088
1089 #define PTL_NALFMT_SIZE         16
1090
1091 #define NAL_MAX_NR (NAL_ENUM_END_MARKER - 1)
1092
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
1106
1107 enum {
1108         DEBUG_DAEMON_START       =  1,
1109         DEBUG_DAEMON_STOP        =  2,
1110         DEBUG_DAEMON_PAUSE       =  3,
1111         DEBUG_DAEMON_CONTINUE    =  4,
1112 };
1113
1114 /* XXX remove to lustre ASAP */
1115 struct lustre_peer {
1116         ptl_nid_t       peer_nid;
1117         ptl_handle_ni_t peer_ni;
1118 };
1119
1120
1121 /* module.c */
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);
1125
1126 enum cfg_record_type {
1127         PORTALS_CFG_TYPE = 1,
1128         LUSTRE_CFG_TYPE = 123,
1129 };
1130
1131 typedef int (*cfg_record_cb_t)(enum cfg_record_type, int len, void *data);
1132 int kportal_nal_cmd(struct portals_cfg *);
1133
1134 ptl_handle_ni_t *kportal_get_ni (int nal);
1135 void kportal_put_ni (int nal);
1136
1137 #ifdef __CYGWIN__
1138 # ifndef BITS_PER_LONG
1139 #  if (~0UL) == 0xffffffffUL
1140 #   define BITS_PER_LONG 32
1141 #  else
1142 #   define BITS_PER_LONG 64
1143 #  endif
1144 # endif
1145 #endif
1146
1147 #if defined(__x86_64__)
1148 # define LPU64 "%Lu"
1149 # define LPD64 "%Ld"
1150 # define LPX64 "%#Lx"
1151 # define LPSZ  "%lu"
1152 # define LPSSZ "%ld"
1153 #elif (BITS_PER_LONG == 32 || __WORDSIZE == 32)
1154 # define LPU64 "%Lu"
1155 # define LPD64 "%Ld"
1156 # define LPX64 "%#Lx"
1157 # define LPSZ  "%u"
1158 # define LPSSZ "%d"
1159 #elif (BITS_PER_LONG == 64 || __WORDSIZE == 64)
1160 # define LPU64 "%lu"
1161 # define LPD64 "%ld"
1162 # define LPX64 "%#lx"
1163 # define LPSZ  "%lu"
1164 # define LPSSZ "%ld"
1165 #endif
1166 #ifndef LPU64
1167 # error "No word size defined"
1168 #endif
1169
1170 #endif