FD.io VPP  v20.01-48-g3e0dafb74
Vector Packet Processing
pmalloc.c
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1 /*
2  * Copyright (c) 2018 Cisco and/or its affiliates.
3  * Licensed under the Apache License, Version 2.0 (the "License");
4  * you may not use this file except in compliance with the License.
5  * You may obtain a copy of the License at:
6  *
7  * http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software
10  * distributed under the License is distributed on an "AS IS" BASIS,
11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12  * See the License for the specific language governing permissions and
13  * limitations under the License.
14  */
15 
16 #define _GNU_SOURCE
17 #include <stdlib.h>
18 #include <sys/types.h>
19 #include <sys/stat.h>
20 #include <fcntl.h>
21 #include <unistd.h>
22 #include <linux/mempolicy.h>
23 #include <linux/memfd.h>
24 #include <sched.h>
25 
26 #include <vppinfra/format.h>
27 #include <vppinfra/linux/syscall.h>
28 #include <vppinfra/linux/sysfs.h>
29 #include <vppinfra/mem.h>
30 #include <vppinfra/hash.h>
31 #include <vppinfra/pmalloc.h>
32 
33 #if __SIZEOF_POINTER__ >= 8
34 #define DEFAULT_RESERVED_MB 16384
35 #else
36 #define DEFAULT_RESERVED_MB 256
37 #endif
38 
39 static inline clib_pmalloc_chunk_t *
41 {
42  return pool_elt_at_index (pp->chunks, index);
43 }
44 
45 static inline uword
47 {
48  return round_pow2 (size, 1ULL << log2_page_sz) >> log2_page_sz;
49 }
50 
51 static inline int
53 {
54  if (*numa_node == CLIB_PMALLOC_NUMA_LOCAL)
55  {
56  u32 cpu;
57  if (getcpu (&cpu, numa_node) != 0)
58  return 1;
59  }
60  return 0;
61 }
62 
63 int
65 {
66  uword off, pagesize;
67  u64 *pt = 0;
68  int mmap_flags;
69 
70  ASSERT (pm->error == 0);
71 
73  pm->def_log2_page_sz = min_log2 (pagesize);
74  pm->sys_log2_page_sz = min_log2 (sysconf (_SC_PAGESIZE));
76 
77  /* check if pagemap is accessible */
78  pt = clib_mem_vm_get_paddr (&pt, pm->sys_log2_page_sz, 1);
79  if (pt == 0 || pt[0] == 0)
81 
82  size = size ? size : ((u64) DEFAULT_RESERVED_MB) << 20;
83  size = round_pow2 (size, pagesize);
84 
85  pm->max_pages = size >> pm->def_log2_page_sz;
86 
87  /* reserve VA space for future growth */
88  mmap_flags = MAP_PRIVATE | MAP_ANONYMOUS;
89 
90  if (base_addr)
91  mmap_flags |= MAP_FIXED;
92 
93  pm->base = mmap (uword_to_pointer (base_addr, void *), size + pagesize,
94  PROT_NONE, mmap_flags, -1, 0);
95 
96  if (pm->base == MAP_FAILED)
97  {
98  pm->error = clib_error_return_unix (0, "failed to reserve %u pages");
99  return -1;
100  }
101 
102  off = round_pow2 (pointer_to_uword (pm->base), pagesize) -
103  pointer_to_uword (pm->base);
104 
105  /* trim start and end of reservation to be page aligned */
106  if (off)
107  {
108  munmap (pm->base, off);
109  pm->base += off;
110  }
111 
112  munmap (pm->base + ((uword) pm->max_pages * pagesize), pagesize - off);
113  return 0;
114 }
115 
116 static inline void *
118  u32 n_blocks, u32 block_align, u32 numa_node)
119 {
120  clib_pmalloc_chunk_t *c = 0;
122  void *va;
123  u32 off;
124  u32 alloc_chunk_index;
125 
126  a = pool_elt_at_index (pm->arenas, pp->arena_index);
127 
128  if (pp->chunks == 0)
129  {
130  u32 i, start = 0, prev = ~0;
131 
132  for (i = 0; i < a->subpages_per_page; i++)
133  {
134  pool_get (pp->chunks, c);
135  c->start = start;
136  c->prev = prev;
137  c->size = pp->n_free_blocks / a->subpages_per_page;
138  start += c->size;
139  if (prev == ~0)
140  pp->first_chunk_index = c - pp->chunks;
141  else
142  pp->chunks[prev].next = c - pp->chunks;
143  prev = c - pp->chunks;
144  }
145  c->next = ~0;
147  }
148 
149  if (pp->n_free_blocks < n_blocks)
150  return 0;
151 
152  alloc_chunk_index = pp->first_chunk_index;
153 
154 next_chunk:
155  c = pool_elt_at_index (pp->chunks, alloc_chunk_index);
156  off = (block_align - (c->start & (block_align - 1))) & (block_align - 1);
157 
158  if (c->used || n_blocks + off > c->size)
159  {
160  if (c->next == ~0)
161  return 0;
162  alloc_chunk_index = c->next;
163  goto next_chunk;
164  }
165 
166  /* if alignment is needed create new empty chunk */
167  if (off)
168  {
169  u32 offset_chunk_index;
171  pool_get (pp->chunks, c);
172  pp->n_free_chunks++;
173  offset_chunk_index = alloc_chunk_index;
174  alloc_chunk_index = c - pp->chunks;
175 
176  co = pool_elt_at_index (pp->chunks, offset_chunk_index);
177  c->size = co->size - off;
178  c->next = co->next;
179  c->start = co->start + off;
180  c->prev = offset_chunk_index;
181  co->size = off;
182  co->next = alloc_chunk_index;
183  }
184 
185  c->used = 1;
186  if (c->size > n_blocks)
187  {
188  u32 tail_chunk_index;
190  pool_get (pp->chunks, ct);
191  pp->n_free_chunks++;
192  tail_chunk_index = ct - pp->chunks;
193  c = pool_elt_at_index (pp->chunks, alloc_chunk_index);
194  ct->size = c->size - n_blocks;
195  ct->next = c->next;
196  ct->prev = alloc_chunk_index;
197  ct->start = c->start + n_blocks;
198 
199  c->size = n_blocks;
200  c->next = tail_chunk_index;
201  if (ct->next != ~0)
202  pool_elt_at_index (pp->chunks, ct->next)->prev = tail_chunk_index;
203  }
204  else if (c->next != ~0)
205  pool_elt_at_index (pp->chunks, c->next)->prev = alloc_chunk_index;
206 
207  c = get_chunk (pp, alloc_chunk_index);
208  va = pm->base + ((pp - pm->pages) << pm->def_log2_page_sz) +
210  hash_set (pm->chunk_index_by_va, pointer_to_uword (va), alloc_chunk_index);
211  pp->n_free_blocks -= n_blocks;
212  pp->n_free_chunks--;
213  return va;
214 }
215 
216 static void
218 {
219  uword seek, va, pa, p;
220  int fd;
221  u32 elts_per_page = 1U << (pm->def_log2_page_sz - pm->lookup_log2_page_sz);
222 
224  elts_per_page - 1, CLIB_CACHE_LINE_BYTES);
225 
226  p = (uword) first *elts_per_page;
228  {
229  while (p < (uword) elts_per_page * count)
230  {
231  pm->lookup_table[p] = pointer_to_uword (pm->base) +
232  (p << pm->lookup_log2_page_sz);
233  p++;
234  }
235  return;
236  }
237 
238  fd = open ((char *) "/proc/self/pagemap", O_RDONLY);
239  while (p < (uword) elts_per_page * count)
240  {
241  va = pointer_to_uword (pm->base) + (p << pm->lookup_log2_page_sz);
242  pa = 0;
243  seek = (va >> pm->sys_log2_page_sz) * sizeof (pa);
244  if (fd != -1 && lseek (fd, seek, SEEK_SET) == seek &&
245  read (fd, &pa, sizeof (pa)) == (sizeof (pa)) &&
246  pa & (1ULL << 63) /* page present bit */ )
247  {
248  pa = (pa & pow2_mask (55)) << pm->sys_log2_page_sz;
249  }
250  pm->lookup_table[p] = va - pa;
251  p++;
252  }
253 
254  if (fd != -1)
255  close (fd);
256 }
257 
258 static inline clib_pmalloc_page_t *
260  u32 numa_node, u32 n_pages)
261 {
262  clib_pmalloc_page_t *pp = 0;
263  int status, rv, i, mmap_flags;
264  void *va = MAP_FAILED;
265  int old_mpol = -1;
266  long unsigned int mask[16] = { 0 };
267  long unsigned int old_mask[16] = { 0 };
268  uword size = (uword) n_pages << pm->def_log2_page_sz;
269 
270  clib_error_free (pm->error);
271 
272  if (pm->max_pages <= vec_len (pm->pages))
273  {
274  pm->error = clib_error_return (0, "maximum number of pages reached");
275  return 0;
276  }
277 
278  if (a->log2_subpage_sz != pm->sys_log2_page_sz)
279  {
280  pm->error = clib_sysfs_prealloc_hugepages (numa_node,
281  a->log2_subpage_sz, n_pages);
282 
283  if (pm->error)
284  return 0;
285  }
286 
287  rv = get_mempolicy (&old_mpol, old_mask, sizeof (old_mask) * 8 + 1, 0, 0);
288  /* failure to get mempolicy means we can only proceed with numa 0 maps */
289  if (rv == -1 && numa_node != 0)
290  {
291  pm->error = clib_error_return_unix (0, "failed to get mempolicy");
292  return 0;
293  }
294 
295  mask[0] = 1 << numa_node;
296  rv = set_mempolicy (MPOL_BIND, mask, sizeof (mask) * 8 + 1);
297  if (rv == -1 && numa_node != 0)
298  {
299  pm->error = clib_error_return_unix (0, "failed to set mempolicy for "
300  "numa node %u", numa_node);
301  return 0;
302  }
303 
304  mmap_flags = MAP_FIXED;
305 
307  {
308  mmap_flags |= MAP_SHARED;
309  if (a->log2_subpage_sz != pm->sys_log2_page_sz)
310  pm->error = clib_mem_create_hugetlb_fd ((char *) a->name, &a->fd);
311  else
312  pm->error = clib_mem_create_fd ((char *) a->name, &a->fd);
313  if (a->fd == -1)
314  goto error;
315  if ((ftruncate (a->fd, size)) == -1)
316  goto error;
317  }
318  else
319  {
320  if (a->log2_subpage_sz != pm->sys_log2_page_sz)
321  mmap_flags |= MAP_HUGETLB;
322 
323  mmap_flags |= MAP_PRIVATE | MAP_ANONYMOUS;
324  a->fd = -1;
325  }
326 
327  va = pm->base + (((uword) vec_len (pm->pages)) << pm->def_log2_page_sz);
328  if (mmap (va, size, PROT_READ | PROT_WRITE, mmap_flags, a->fd, 0) ==
329  MAP_FAILED)
330  {
331  pm->error = clib_error_return_unix (0, "failed to mmap %u pages at %p "
332  "fd %d numa %d flags 0x%x", n_pages,
333  va, a->fd, numa_node, mmap_flags);
334  va = MAP_FAILED;
335  goto error;
336  }
337 
338  if (a->log2_subpage_sz != pm->sys_log2_page_sz && mlock (va, size) != 0)
339  {
340  pm->error = clib_error_return_unix (0, "Unable to lock pages");
341  goto error;
342  }
343 
344  clib_memset (va, 0, size);
345 
346  rv = set_mempolicy (old_mpol, old_mask, sizeof (old_mask) * 8 + 1);
347  if (rv == -1 && numa_node != 0)
348  {
349  pm->error = clib_error_return_unix (0, "failed to restore mempolicy");
350  goto error;
351  }
352 
353  /* we tolerate move_pages failure only if request os for numa node 0
354  to support non-numa kernels */
355  rv = move_pages (0, 1, &va, 0, &status, 0);
356  if ((rv == 0 && status != numa_node) || (rv != 0 && numa_node != 0))
357  {
358  pm->error = rv == -1 ?
359  clib_error_return_unix (0, "page allocated on wrong node, numa node "
360  "%u status %d", numa_node, status) :
361  clib_error_return (0, "page allocated on wrong node, numa node "
362  "%u status %d", numa_node, status);
363 
364  goto error;
365  }
366 
367  for (i = 0; i < n_pages; i++)
368  {
369  vec_add2 (pm->pages, pp, 1);
371  pp->index = pp - pm->pages;
372  pp->arena_index = a->index;
373  vec_add1 (a->page_indices, pp->index);
374  a->n_pages++;
375  }
376 
377 
378  /* if new arena is using smaller page size, we need to rebuild whole
379  lookup table */
381  {
383  pmalloc_update_lookup_table (pm, vec_len (pm->pages) - n_pages,
384  n_pages);
385  }
386  else
388 
389  /* return pointer to 1st page */
390  return pp - (n_pages - 1);
391 
392 error:
393  if (va != MAP_FAILED)
394  {
395  /* unmap & reserve */
396  munmap (va, size);
397  mmap (va, size, PROT_NONE, MAP_FIXED | MAP_PRIVATE | MAP_ANONYMOUS,
398  -1, 0);
399  }
400  if (a->fd != -1)
401  close (a->fd);
402  return 0;
403 }
404 
405 void *
407  uword size, u32 log2_page_sz, u32 numa_node)
408 {
411  u32 n_pages;
412 
413  clib_error_free (pm->error);
414 
415  if (log2_page_sz == 0)
416  log2_page_sz = pm->def_log2_page_sz;
417  else if (log2_page_sz != pm->def_log2_page_sz &&
418  log2_page_sz != pm->sys_log2_page_sz)
419  {
420  pm->error = clib_error_create ("unsupported page size (%uKB)",
421  1 << (log2_page_sz - 10));
422  return 0;
423  }
424 
425  n_pages = pmalloc_size2pages (size, pm->def_log2_page_sz);
426 
427  if (n_pages + vec_len (pm->pages) > pm->max_pages)
428  return 0;
429 
430  if (pmalloc_validate_numa_node (&numa_node))
431  return 0;
432 
433  pool_get (pm->arenas, a);
434  a->index = a - pm->arenas;
435  a->name = format (0, "%s%c", name, 0);
436  a->numa_node = numa_node;
438  a->log2_subpage_sz = log2_page_sz;
439  a->subpages_per_page = 1U << (pm->def_log2_page_sz - log2_page_sz);
440 
441  if ((pp = pmalloc_map_pages (pm, a, numa_node, n_pages)) == 0)
442  {
443  vec_free (a->name);
444  memset (a, 0, sizeof (*a));
445  pool_put (pm->arenas, a);
446  return 0;
447  }
448 
449  return pm->base + ((uword) pp->index << pm->def_log2_page_sz);
450 }
451 
452 static inline void *
454  uword size, uword align, u32 numa_node)
455 {
457  u32 n_blocks, block_align, *page_index;
458 
459  ASSERT (is_pow2 (align));
460 
461  if (pmalloc_validate_numa_node (&numa_node))
462  return 0;
463 
464  if (a == 0)
465  {
466  if (size > 1ULL << pm->def_log2_page_sz)
467  return 0;
468 
470  numa_node, ~0);
471  if (pm->default_arena_for_numa_node[numa_node] == ~0)
472  {
473  pool_get (pm->arenas, a);
474  pm->default_arena_for_numa_node[numa_node] = a - pm->arenas;
475  a->name = format (0, "default-numa-%u%c", numa_node, 0);
476  a->numa_node = numa_node;
478  a->subpages_per_page = 1;
479  }
480  else
481  a = pool_elt_at_index (pm->arenas,
482  pm->default_arena_for_numa_node[numa_node]);
483  }
484  else if (size > 1ULL << a->log2_subpage_sz)
485  return 0;
486 
487  n_blocks = round_pow2 (size, PMALLOC_BLOCK_SZ) / PMALLOC_BLOCK_SZ;
488  block_align = align >> PMALLOC_LOG2_BLOCK_SZ;
489 
490  vec_foreach (page_index, a->page_indices)
491  {
492  pp = vec_elt_at_index (pm->pages, *page_index);
493  void *rv = alloc_chunk_from_page (pm, pp, n_blocks, block_align,
494  numa_node);
495 
496  if (rv)
497  return rv;
498  }
499 
500  if ((a->flags & CLIB_PMALLOC_ARENA_F_SHARED_MEM) == 0 &&
501  (pp = pmalloc_map_pages (pm, a, numa_node, 1)))
502  return alloc_chunk_from_page (pm, pp, n_blocks, block_align, numa_node);
503 
504  return 0;
505 }
506 
507 void *
509  uword align, u32 numa_node)
510 {
511  return clib_pmalloc_alloc_inline (pm, 0, size, align, numa_node);
512 }
513 
514 void *
516 {
517  return clib_pmalloc_alloc_inline (pm, 0, size, align,
519 }
520 
521 void *
523  uword size, uword align)
524 {
526  return clib_pmalloc_alloc_inline (pm, a, size, align, 0);
527 }
528 
529 static inline int
531  u32 ci1, u32 ci2)
532 {
533  clib_pmalloc_chunk_t *c1, *c2;
534 
535  if (ci1 == ~0 || ci2 == ~0)
536  return 0;
537 
538  c1 = get_chunk (pp, ci1);
539  c2 = get_chunk (pp, ci2);
540 
541  if (c1->used || c2->used)
542  return 0;
543 
544  if (c1->start >> (a->log2_subpage_sz - PMALLOC_LOG2_BLOCK_SZ) !=
546  return 0;
547 
548  return 1;
549 }
550 
551 void
553 {
557  uword *p;
558  u32 chunk_index, page_index;
559 
561 
562  if (p == 0)
563  os_panic ();
564 
565  chunk_index = p[0];
566  page_index = clib_pmalloc_get_page_index (pm, va);
568 
569  pp = vec_elt_at_index (pm->pages, page_index);
570  c = pool_elt_at_index (pp->chunks, chunk_index);
571  a = pool_elt_at_index (pm->arenas, pp->arena_index);
572  c->used = 0;
573  pp->n_free_blocks += c->size;
574  pp->n_free_chunks++;
575 
576  /* merge with next if free */
577  if (pmalloc_chunks_mergeable (a, pp, chunk_index, c->next))
578  {
579  clib_pmalloc_chunk_t *next = get_chunk (pp, c->next);
580  c->size += next->size;
581  c->next = next->next;
582  if (next->next != ~0)
583  get_chunk (pp, next->next)->prev = chunk_index;
584  memset (next, 0, sizeof (*next));
585  pool_put (pp->chunks, next);
586  pp->n_free_chunks--;
587  }
588 
589  /* merge with prev if free */
590  if (pmalloc_chunks_mergeable (a, pp, c->prev, chunk_index))
591  {
592  clib_pmalloc_chunk_t *prev = get_chunk (pp, c->prev);
593  prev->size += c->size;
594  prev->next = c->next;
595  if (c->next != ~0)
596  get_chunk (pp, c->next)->prev = c->prev;
597  memset (c, 0, sizeof (*c));
598  pool_put (pp->chunks, c);
599  pp->n_free_chunks--;
600  }
601 }
602 
603 static u8 *
604 format_log2_page_size (u8 * s, va_list * va)
605 {
606  u32 log2_page_sz = va_arg (*va, u32);
607 
608  if (log2_page_sz >= 30)
609  return format (s, "%uGB", 1 << (log2_page_sz - 30));
610 
611  if (log2_page_sz >= 20)
612  return format (s, "%uMB", 1 << (log2_page_sz - 20));
613 
614  if (log2_page_sz >= 10)
615  return format (s, "%uKB", 1 << (log2_page_sz - 10));
616 
617  return format (s, "%uB", 1 << log2_page_sz);
618 }
619 
620 
621 static u8 *
622 format_pmalloc_page (u8 * s, va_list * va)
623 {
624  clib_pmalloc_page_t *pp = va_arg (*va, clib_pmalloc_page_t *);
625  int verbose = va_arg (*va, int);
626  u32 indent = format_get_indent (s);
627 
628  if (pp->chunks == 0)
629  return s;
630 
631  s = format (s, "free %u chunks %u free-chunks %d ",
633  pool_elts (pp->chunks), pp->n_free_chunks);
634 
635  if (verbose >= 2)
636  {
639  s = format (s, "\n%U%12s%12s%8s%8s%8s%8s",
640  format_white_space, indent + 2,
641  "chunk offset", "size", "used", "index", "prev", "next");
642  while (1)
643  {
644  s = format (s, "\n%U%12u%12u%8s%8d%8d%8d",
645  format_white_space, indent + 2,
648  c->used ? "yes" : "no",
649  c - pp->chunks, c->prev, c->next);
650  if (c->next == ~0)
651  break;
652  c = pool_elt_at_index (pp->chunks, c->next);
653  }
654  }
655  return s;
656 }
657 
658 u8 *
659 format_pmalloc (u8 * s, va_list * va)
660 {
661  clib_pmalloc_main_t *pm = va_arg (*va, clib_pmalloc_main_t *);
662  int verbose = va_arg (*va, int);
663  u32 indent = format_get_indent (s);
664 
667 
668  s = format (s, "used-pages %u reserved-pages %u default-page-size %U "
669  "lookup-page-size %U%s", vec_len (pm->pages), pm->max_pages,
672  pm->flags & CLIB_PMALLOC_F_NO_PAGEMAP ? " no-pagemap" : "");
673 
674 
675  if (verbose >= 2)
676  s = format (s, " va-start %p", pm->base);
677 
678  if (pm->error)
679  s = format (s, "\n%Ulast-error: %U", format_white_space, indent + 2,
680  format_clib_error, pm->error);
681 
682 
683  /* *INDENT-OFF* */
684  pool_foreach (a, pm->arenas,
685  {
686  u32 *page_index;
687  s = format (s, "\n%Uarena '%s' pages %u subpage-size %U numa-node %u",
688  format_white_space, indent + 2, a->name,
689  vec_len (a->page_indices), format_log2_page_size,
690  a->log2_subpage_sz, a->numa_node);
691  if (a->fd != -1)
692  s = format (s, " shared fd %d", a->fd);
693  if (verbose >= 1)
694  vec_foreach (page_index, a->page_indices)
695  {
696  pp = vec_elt_at_index (pm->pages, *page_index);
697  s = format (s, "\n%U%U", format_white_space, indent + 4,
698  format_pmalloc_page, pp, verbose);
699  }
700  });
701  /* *INDENT-ON* */
702 
703  return s;
704 }
705 
706 u8 *
707 format_pmalloc_map (u8 * s, va_list * va)
708 {
709  clib_pmalloc_main_t *pm = va_arg (*va, clib_pmalloc_main_t *);
710 
711  u32 index;
712  s = format (s, "%16s %13s %8s", "virtual-addr", "physical-addr", "size");
713  vec_foreach_index (index, pm->lookup_table)
714  {
715  uword *lookup_val, pa, va;
716  lookup_val = vec_elt_at_index (pm->lookup_table, index);
717  va =
718  pointer_to_uword (pm->base) +
719  ((uword) index << pm->lookup_log2_page_sz);
720  pa = va - *lookup_val;
721  s =
722  format (s, "\n %16p %13p %8U", uword_to_pointer (va, u64),
724  pm->lookup_log2_page_sz);
725  }
726  return s;
727 }
728 
729 /*
730  * fd.io coding-style-patch-verification: ON
731  *
732  * Local Variables:
733  * eval: (c-set-style "gnu")
734  * End:
735  */
u8 count
Definition: dhcp.api:208
#define PMALLOC_BLOCK_SZ
Definition: pmalloc.h:22
#define vec_foreach_index(var, v)
Iterate over vector indices.
u8 * format_clib_error(u8 *s, va_list *va)
Definition: error.c:191
#define hash_set(h, key, value)
Definition: hash.h:255
u32 lookup_log2_page_sz
Definition: pmalloc.h:99
clib_error_t * clib_sysfs_prealloc_hugepages(int numa_node, int log2_page_size, int nr)
Definition: sysfs.c:239
#define hash_unset(h, key)
Definition: hash.h:261
a
Definition: bitmap.h:538
static u8 * format_pmalloc_page(u8 *s, va_list *va)
Definition: pmalloc.c:622
unsigned long u64
Definition: types.h:89
#define CLIB_PMALLOC_NUMA_LOCAL
Definition: pmalloc.h:24
clib_memset(h->entries, 0, sizeof(h->entries[0]) *entries)
void os_panic(void)
Definition: unix-misc.c:174
void * clib_pmalloc_alloc_aligned_on_numa(clib_pmalloc_main_t *pm, uword size, uword align, u32 numa_node)
Definition: pmalloc.c:508
static void * clib_pmalloc_alloc_inline(clib_pmalloc_main_t *pm, clib_pmalloc_arena_t *a, uword size, uword align, u32 numa_node)
Definition: pmalloc.c:453
static void pmalloc_update_lookup_table(clib_pmalloc_main_t *pm, u32 first, u32 count)
Definition: pmalloc.c:217
#define vec_add1(V, E)
Add 1 element to end of vector (unspecified alignment).
Definition: vec.h:523
static u32 clib_pmalloc_get_page_index(clib_pmalloc_main_t *pm, void *va)
Definition: pmalloc.h:131
#define vec_add2(V, P, N)
Add N elements to end of vector V, return pointer to new elements in P.
Definition: vec.h:561
int i
void * clib_pmalloc_create_shared_arena(clib_pmalloc_main_t *pm, char *name, uword size, u32 log2_page_sz, u32 numa_node)
Definition: pmalloc.c:406
static u32 format_get_indent(u8 *s)
Definition: format.h:72
u8 * format(u8 *s, const char *fmt,...)
Definition: format.c:424
#define vec_validate_aligned(V, I, A)
Make sure vector is long enough for given index (no header, specified alignment)
Definition: vec.h:451
#define pool_get(P, E)
Allocate an object E from a pool P (unspecified alignment).
Definition: pool.h:237
void * clib_pmalloc_alloc_aligned(clib_pmalloc_main_t *pm, uword size, uword align)
Definition: pmalloc.c:515
unsigned char u8
Definition: types.h:56
static int pmalloc_chunks_mergeable(clib_pmalloc_arena_t *a, clib_pmalloc_page_t *pp, u32 ci1, u32 ci2)
Definition: pmalloc.c:530
static uword min_log2(uword x)
Definition: clib.h:144
clib_pmalloc_chunk_t * chunks
Definition: pmalloc.h:39
clib_pmalloc_arena_t * arenas
Definition: pmalloc.h:89
static u8 * format_log2_page_size(u8 *s, va_list *va)
Definition: pmalloc.c:604
static int pmalloc_validate_numa_node(u32 *numa_node)
Definition: pmalloc.c:52
static clib_pmalloc_page_t * pmalloc_map_pages(clib_pmalloc_main_t *pm, clib_pmalloc_arena_t *a, u32 numa_node, u32 n_pages)
Definition: pmalloc.c:259
int clib_pmalloc_init(clib_pmalloc_main_t *pm, uword base_addr, uword size)
Definition: pmalloc.c:64
static clib_pmalloc_chunk_t * get_chunk(clib_pmalloc_page_t *pp, u32 index)
Definition: pmalloc.c:40
#define pool_foreach(VAR, POOL, BODY)
Iterate through pool.
Definition: pool.h:498
static long set_mempolicy(int mode, const unsigned long *nodemask, unsigned long maxnode)
Definition: syscall.h:31
u8 * format_pmalloc_map(u8 *s, va_list *va)
Definition: pmalloc.c:707
static void * alloc_chunk_from_page(clib_pmalloc_main_t *pm, clib_pmalloc_page_t *pp, u32 n_blocks, u32 block_align, u32 numa_node)
Definition: pmalloc.c:117
static uword pow2_mask(uword x)
Definition: clib.h:220
u8 * format_white_space(u8 *s, va_list *va)
Definition: std-formats.c:129
#define DEFAULT_RESERVED_MB
Definition: pmalloc.c:36
#define vec_elt_at_index(v, i)
Get vector value at index i checking that i is in bounds.
#define clib_error_return(e, args...)
Definition: error.h:99
static uword pmalloc_size2pages(uword size, u32 log2_page_sz)
Definition: pmalloc.c:46
unsigned int u32
Definition: types.h:88
#define clib_error_create(args...)
Definition: error.h:96
static heap_elt_t * first(heap_header_t *h)
Definition: heap.c:59
#define PMALLOC_LOG2_BLOCK_SZ
Definition: pmalloc.h:21
#define hash_get(h, key)
Definition: hash.h:249
#define pool_elt_at_index(p, i)
Returns pointer to element at given index.
Definition: pool.h:519
void * clib_pmalloc_alloc_from_arena(clib_pmalloc_main_t *pm, void *arena_va, uword size, uword align)
Definition: pmalloc.c:522
#define CLIB_PMALLOC_F_NO_PAGEMAP
Definition: pmalloc.h:64
static int getcpu(unsigned *cpu, unsigned *node)
Definition: syscall.h:24
#define clib_error_return_unix(e, args...)
Definition: error.h:102
u64 size
Definition: vhost_user.h:140
#define pool_put(P, E)
Free an object E in pool P.
Definition: pool.h:287
u32 * default_arena_for_numa_node
Definition: pmalloc.h:93
static int get_mempolicy(int *mode, unsigned long *nodemask, unsigned long maxnode, void *addr, unsigned long flags)
Definition: syscall.h:37
uword * lookup_table
Definition: pmalloc.h:96
svmdb_client_t * c
clib_pmalloc_page_t * pages
Definition: pmalloc.h:80
#define vec_free(V)
Free vector&#39;s memory (no header).
Definition: vec.h:342
clib_error_t * error
Definition: pmalloc.h:102
static uword round_pow2(uword x, uword pow2)
Definition: clib.h:241
string name[64]
Definition: ip.api:44
#define uword_to_pointer(u, type)
Definition: types.h:136
#define ASSERT(truth)
void clib_pmalloc_free(clib_pmalloc_main_t *pm, void *va)
Definition: pmalloc.c:552
uword * chunk_index_by_va
Definition: pmalloc.h:84
uword clib_mem_get_default_hugepage_size(void)
Definition: mem.c:57
static uword pointer_to_uword(const void *p)
Definition: types.h:131
clib_error_t * clib_mem_create_hugetlb_fd(char *name, int *fdp)
Definition: mem.c:146
static uword is_pow2(uword x)
Definition: clib.h:235
clib_error_t * clib_mem_create_fd(char *name, int *fdp)
Definition: mem.c:126
static clib_pmalloc_arena_t * clib_pmalloc_get_arena(clib_pmalloc_main_t *pm, void *va)
Definition: pmalloc.h:142
#define vec_len(v)
Number of elements in vector (rvalue-only, NULL tolerant)
u64 uword
Definition: types.h:112
u64 * clib_mem_vm_get_paddr(void *mem, int log2_page_size, int n_pages)
Definition: mem.c:347
#define next_chunk(p)
Definition: dlmalloc.c:859
#define clib_error_free(e)
Definition: error.h:86
#define vec_foreach(var, vec)
Vector iterator.
static long move_pages(int pid, unsigned long count, void **pages, const int *nodes, int *status, int flags)
Definition: syscall.h:44
#define vec_validate_init_empty(V, I, INIT)
Make sure vector is long enough for given index and initialize empty space (no header, unspecified alignment)
Definition: vec.h:487
#define CLIB_CACHE_LINE_BYTES
Definition: cache.h:59
u8 * format_pmalloc(u8 *s, va_list *va)
Definition: pmalloc.c:659
#define CLIB_PMALLOC_ARENA_F_SHARED_MEM
Definition: pmalloc.h:49
static uword pool_elts(void *v)
Number of active elements in a pool.
Definition: pool.h:128