#endif
/* default value */
- return 0x30000000;
+ return 0x130000000ULL;
}
static void
uword bytes_inuse;
bytes_inuse =
- ip6_main.ip6_table[IP6_FIB_TABLE_NON_FWDING].ip6_hash.alloc_arena_next
- - ip6_main.ip6_table[IP6_FIB_TABLE_NON_FWDING].ip6_hash.alloc_arena;
+ alloc_arena_next
+ (&(ip6_main.ip6_table[IP6_FIB_TABLE_NON_FWDING].ip6_hash))
+ - alloc_arena (&(ip6_main.ip6_table[IP6_FIB_TABLE_NON_FWDING].ip6_hash));
bytes_inuse +=
- ip6_main.ip6_table[IP6_FIB_TABLE_FWDING].ip6_hash.alloc_arena_next
- - ip6_main.ip6_table[IP6_FIB_TABLE_FWDING].ip6_hash.alloc_arena;
+ alloc_arena_next(&(ip6_main.ip6_table[IP6_FIB_TABLE_FWDING].ip6_hash))
+ - alloc_arena(&(ip6_main.ip6_table[IP6_FIB_TABLE_FWDING].ip6_hash));
s = format(s, "%=30s %=6d %=8ld\n",
"IPv6 unicast",
test_vec_CPPFLAGS = $(AM_CPPFLAGS) -DCLIB_DEBUG
test_zvec_CPPFLAGS = $(AM_CPPFLAGS) -DCLIB_DEBUG
-test_bihash_template_LDADD = libvppinfra.la
+test_bihash_template_LDADD = libvppinfra.la -lpthread
test_bihash_vec88_LDADD = libvppinfra.la
test_cuckoo_template_LDADD = libvppinfra.la
test_cuckoo_bihash_LDADD = libvppinfra.la
--- /dev/null
+/*
+ * Copyright (c) 2018 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#undef BIHASH_TYPE
+#undef BIHASH_KVP_PER_PAGE
+
+#define BIHASH_TYPE _16_8_32
+#define BIHASH_KVP_PER_PAGE 4
+
+#define BIHASH_32_64_SVM 1
+
+#ifndef __included_bihash_16_18_32_h__
+#define __included_bihash_16_18_32_h__
+
+#include <vppinfra/heap.h>
+#include <vppinfra/format.h>
+#include <vppinfra/pool.h>
+#include <vppinfra/xxhash.h>
+#include <vppinfra/crc32.h>
+
+typedef struct
+{
+ u64 key[2];
+ u64 value;
+} clib_bihash_kv_16_8_32_t;
+
+static inline int
+clib_bihash_is_free_16_8_32 (clib_bihash_kv_16_8_32_t * v)
+{
+ /* Free values are memset to 0xff, check a bit... */
+ if (v->key[0] == ~0ULL && v->value == ~0ULL)
+ return 1;
+ return 0;
+}
+
+static inline u64
+clib_bihash_hash_16_8_32 (clib_bihash_kv_16_8_32_t * v)
+{
+#ifdef clib_crc32c_uses_intrinsics
+ return clib_crc32c ((u8 *) v->key, 16);
+#else
+ u64 tmp = v->key[0] ^ v->key[1];
+ return clib_xxhash (tmp);
+#endif
+}
+
+static inline u8 *
+format_bihash_kvp_16_8_32 (u8 * s, va_list * args)
+{
+ clib_bihash_kv_16_8_32_t *v = va_arg (*args, clib_bihash_kv_16_8_32_t *);
+
+ s = format (s, "key %llu %llu value %llu", v->key[0], v->key[1], v->value);
+ return s;
+}
+
+static inline int
+clib_bihash_key_compare_16_8_32 (u64 * a, u64 * b)
+{
+#if defined(CLIB_HAVE_VEC128) && defined(CLIB_HAVE_VEC128_UNALIGNED_LOAD_STORE)
+ u64x2 v;
+ v = u64x2_load_unaligned (a) ^ u64x2_load_unaligned (b);
+ return u64x2_is_all_zero (v);
+#else
+ return ((a[0] ^ b[0]) | (a[1] ^ b[1])) == 0;
+#endif
+}
+
+#undef __included_bihash_template_h__
+#include <vppinfra/bihash_template.h>
+
+#endif /* __included_bihash_16_8_32_h__ */
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
nbytes += CLIB_CACHE_LINE_BYTES - 1;
nbytes &= ~(CLIB_CACHE_LINE_BYTES - 1);
- rv = h->alloc_arena_next;
- h->alloc_arena_next += nbytes;
+ rv = alloc_arena_next (h);
+ alloc_arena_next (h) += nbytes;
- if (rv >= (h->alloc_arena + h->alloc_arena_size))
+ if (rv >= (alloc_arena (h) + alloc_arena_size (h)))
os_out_of_memory ();
return (void *) rv;
*/
ASSERT (memory_size < (1ULL << BIHASH_BUCKET_OFFSET_BITS));
- h->alloc_arena = (uword) clib_mem_vm_alloc (memory_size);
- h->alloc_arena_next = h->alloc_arena;
- h->alloc_arena_size = memory_size;
+ alloc_arena (h) = (uword) clib_mem_vm_alloc (memory_size);
+ alloc_arena_next (h) = alloc_arena (h);
+ alloc_arena_size (h) = memory_size;
bucket_size = nbuckets * sizeof (h->buckets[0]);
h->buckets = BV (alloc_aligned) (h, bucket_size);
h->fmt_fn = NULL;
}
+#if BIHASH_32_64_SVM
+#if !defined (MFD_ALLOW_SEALING)
+#define MFD_ALLOW_SEALING 0x0002U
+#endif
+
+void BV (clib_bihash_master_init_svm)
+ (BVT (clib_bihash) * h, char *name, u32 nbuckets,
+ u64 base_address, u64 memory_size)
+{
+ uword bucket_size;
+ u8 *mmap_addr;
+ vec_header_t *freelist_vh;
+ int fd;
+
+ ASSERT (base_address);
+ ASSERT (base_address + memory_size < (1ULL << 32));
+
+ /* Set up for memfd sharing */
+ if ((fd = memfd_create (name, MFD_ALLOW_SEALING)) == -1)
+ {
+ clib_unix_warning ("memfd_create");
+ return;
+ }
+
+ if (ftruncate (fd, memory_size) < 0)
+ {
+ clib_unix_warning ("ftruncate");
+ return;
+ }
+
+ /* Not mission-critical, complain and continue */
+ if ((fcntl (fd, F_ADD_SEALS, F_SEAL_SHRINK)) == -1)
+ clib_unix_warning ("fcntl (F_ADD_SEALS)");
+
+ mmap_addr = mmap (u64_to_pointer (base_address), memory_size,
+ PROT_READ | PROT_WRITE, MAP_SHARED | MAP_FIXED, fd,
+ 0 /* offset */ );
+
+ if (mmap_addr == MAP_FAILED)
+ {
+ clib_unix_warning ("mmap failed");
+ ASSERT (0);
+ }
+
+ h->sh = (void *) mmap_addr;
+ h->memfd = fd;
+ nbuckets = 1 << (max_log2 (nbuckets));
+
+ h->name = (u8 *) name;
+ h->sh->nbuckets = h->nbuckets = nbuckets;
+ h->log2_nbuckets = max_log2 (nbuckets);
+
+ alloc_arena (h) = (u64) (uword) mmap_addr;
+ alloc_arena_next (h) = alloc_arena (h) + CLIB_CACHE_LINE_BYTES;
+ alloc_arena_size (h) = memory_size;
+
+ bucket_size = nbuckets * sizeof (h->buckets[0]);
+ h->buckets = BV (alloc_aligned) (h, bucket_size);
+ h->sh->buckets_as_u64 = (u64) (uword) h->buckets;
+
+ h->alloc_lock = BV (alloc_aligned) (h, CLIB_CACHE_LINE_BYTES);
+ h->alloc_lock[0] = 0;
+
+ h->sh->alloc_lock_as_u64 = (u64) (uword) (h->alloc_lock);
+ freelist_vh = BV (alloc_aligned) (h, sizeof (vec_header_t) +
+ BIHASH_FREELIST_LENGTH * sizeof (u64));
+ freelist_vh->len = BIHASH_FREELIST_LENGTH;
+ freelist_vh->dlmalloc_header_offset = 0xDEADBEEF;
+ h->sh->freelists_as_u64 = (u64) (uword) freelist_vh->vector_data;
+ h->freelists = (void *) (uword) (h->sh->freelists_as_u64);
+
+ h->fmt_fn = NULL;
+}
+
+void BV (clib_bihash_slave_init_svm)
+ (BVT (clib_bihash) * h, char *name, int fd)
+{
+ u8 *mmap_addr;
+ u64 base_address, memory_size;
+ BVT (clib_bihash_shared_header) * sh;
+
+ /* Trial mapping, to place the segment */
+ mmap_addr = mmap (0, 4096, PROT_READ, MAP_SHARED, fd, 0 /* offset */ );
+ if (mmap_addr == MAP_FAILED)
+ {
+ clib_unix_warning ("trial mmap failed");
+ ASSERT (0);
+ }
+
+ sh = (BVT (clib_bihash_shared_header) *) mmap_addr;
+
+ base_address = sh->alloc_arena;
+ memory_size = sh->alloc_arena_size;
+
+ munmap (mmap_addr, 4096);
+
+ /* Actual mapping, at the required address */
+ mmap_addr = mmap (u64_to_pointer (base_address), memory_size,
+ PROT_READ | PROT_WRITE, MAP_SHARED | MAP_FIXED, fd,
+ 0 /* offset */ );
+
+ if (mmap_addr == MAP_FAILED)
+ {
+ clib_unix_warning ("mmap failed");
+ ASSERT (0);
+ }
+
+ (void) close (fd);
+
+ h->sh = (void *) mmap_addr;
+ h->memfd = -1;
+
+ h->name = (u8 *) name;
+ h->buckets = u64_to_pointer (h->sh->buckets_as_u64);
+ h->nbuckets = h->sh->nbuckets;
+ h->log2_nbuckets = max_log2 (h->nbuckets);
+
+ h->alloc_lock = u64_to_pointer (h->sh->alloc_lock_as_u64);
+ h->freelists = u64_to_pointer (h->sh->freelists_as_u64);
+ h->fmt_fn = NULL;
+}
+#endif /* BIHASH_32_64_SVM */
+
void BV (clib_bihash_set_kvp_format_fn) (BVT (clib_bihash) * h,
format_function_t * fmt_fn)
{
void BV (clib_bihash_free) (BVT (clib_bihash) * h)
{
vec_free (h->working_copies);
+#if BIHASH_32_64_SVM == 0
vec_free (h->freelists);
- clib_mem_vm_free ((void *) (h->alloc_arena), h->alloc_arena_size);
+#else
+ if (h->memfd > 0)
+ (void) close (h->memfd);
+#endif
+ clib_mem_vm_free ((void *) (uword) (alloc_arena (h)), alloc_arena_size (h));
memset (h, 0, sizeof (*h));
}
BVT (clib_bihash_value) * rv = 0;
ASSERT (h->alloc_lock[0]);
+
+#if BIHASH_32_64_SVM
+ ASSERT (log2_pages < vec_len (h->freelists));
+#endif
+
if (log2_pages >= vec_len (h->freelists) || h->freelists[log2_pages] == 0)
{
vec_validate_init_empty (h->freelists, log2_pages, 0);
rv = BV (alloc_aligned) (h, (sizeof (*rv) * (1 << log2_pages)));
goto initialize;
}
- rv = h->freelists[log2_pages];
- h->freelists[log2_pages] = rv->next_free;
+ rv = (void *) (uword) h->freelists[log2_pages];
+ h->freelists[log2_pages] = rv->next_free_as_u64;
initialize:
ASSERT (rv);
if (CLIB_DEBUG > 0)
memset (v, 0xFE, sizeof (*v) * (1 << log2_pages));
- v->next_free = h->freelists[log2_pages];
- h->freelists[log2_pages] = v;
+ v->next_free_as_u64 = (u64) h->freelists[log2_pages];
+ h->freelists[log2_pages] = (u64) (uword) v;
}
static inline void
CLIB_MEMORY_BARRIER (); /* Make sure the value has settled */
clib_memcpy (&(v->kvp[i]), &add_v->key, sizeof (add_v->key));
b->refcnt++;
+ ASSERT (b->refcnt > 0);
BV (clib_bihash_unlock_bucket) (b);
return (0);
}
tmp_b.offset = BV (clib_bihash_get_offset) (h, save_new_v);
tmp_b.linear_search = mark_bucket_linear;
tmp_b.refcnt = h->saved_bucket.refcnt + 1;
+ ASSERT (tmp_b.refcnt > 0);
tmp_b.lock = 0;
CLIB_MEMORY_BARRIER ();
b->as_u64 = tmp_b.as_u64;
if (verbose)
{
- s = format (s, "[%d]: heap offset %d, len %d, linear %d\n", i,
+ s = format (s, "[%d]: heap offset %lld, len %d, linear %d\n", i,
b->offset, (1 << b->log2_pages), b->linear_search);
}
u32 nfree = 0;
BVT (clib_bihash_value) * free_elt;
- free_elt = h->freelists[i];
+ free_elt = (void *) (uword) h->freelists[i];
while (free_elt)
{
nfree++;
- free_elt = free_elt->next_free;
+ free_elt = (void *) (uword) free_elt->next_free_as_u64;
}
- s = format (s, " [len %d] %u free elts\n", 1 << i, nfree);
+ if (nfree || verbose)
+ s = format (s, " [len %d] %u free elts\n", 1 << i, nfree);
}
s = format (s, " %lld linear search buckets\n", linear_buckets);
- used_bytes = h->alloc_arena_next - h->alloc_arena;
+ used_bytes = alloc_arena_next (h) - alloc_arena (h);
s = format (s,
" arena: base %llx, next %llx\n"
" used %lld b (%lld Mbytes) of %lld b (%lld Mbytes)\n",
- h->alloc_arena, h->alloc_arena_next,
+ alloc_arena (h), alloc_arena_next (h),
used_bytes, used_bytes >> 20,
- h->alloc_arena_size, h->alloc_arena_size >> 20);
+ alloc_arena_size (h), alloc_arena_size (h) >> 20);
return s;
}
#error BIHASH_TYPE not defined
#endif
+#ifdef BIHASH_32_64_SVM
+#undef HAVE_MEMFD_CREATE
+#include <vppinfra/linux/syscall.h>
+#include <fcntl.h>
+#define F_LINUX_SPECIFIC_BASE 1024
+#define F_ADD_SEALS (F_LINUX_SPECIFIC_BASE + 9)
+#define F_SEAL_SHRINK (2)
+/* Max page size 2**16 due to refcount width */
+#define BIHASH_FREELIST_LENGTH 17
+#endif
+
#define _bv(a,b) a##b
#define __bv(a,b) _bv(a,b)
#define BV(a) __bv(a,BIHASH_TYPE)
#define __bvt(a,b) _bvt(a,b)
#define BVT(a) __bvt(a,BIHASH_TYPE)
+#if _LP64 == 0
+#define OVERFLOW_ASSERT(x) ASSERT(((x) & 0xFFFFFFFF00000000ULL) == 0)
+#define u64_to_pointer(x) (void *)(u32)((x))
+#define pointer_to_u64(x) (u64)(u32)((x))
+#else
+#define OVERFLOW_ASSERT(x)
+#define u64_to_pointer(x) (void *)((x))
+#define pointer_to_u64(x) (u64)((x))
+#endif
+
typedef struct BV (clib_bihash_value)
{
union
{
BVT (clib_bihash_kv) kvp[BIHASH_KVP_PER_PAGE];
- struct BV (clib_bihash_value) * next_free;
+ u64 next_free_as_u64;
};
} BVT (clib_bihash_value);
u64 lock:1;
u64 linear_search:1;
u64 log2_pages:8;
- i64 refcnt:16;
+ u64 refcnt:16;
};
u64 as_u64;
};
STATIC_ASSERT_SIZEOF (BVT (clib_bihash_bucket), sizeof (u64));
+/* *INDENT-OFF* */
+typedef CLIB_PACKED (struct {
+ /*
+ * Backing store allocation. Since bihash manages its own
+ * freelists, we simple dole out memory at alloc_arena_next.
+ */
+ u64 alloc_arena_next; /* Next VA to allocate, definitely NOT a constant */
+ u64 alloc_arena_size; /* Size of the arena */
+ u64 alloc_arena; /* Base VA of the arena */
+ /* Two SVM pointers stored as 8-byte integers */
+ u64 alloc_lock_as_u64;
+ u64 buckets_as_u64;
+ /* freelist list-head arrays/vectors */
+ u64 freelists_as_u64;
+ u32 nbuckets; /* Number of buckets */
+ /* Set when header valid */
+ volatile u32 ready;
+ u64 pad;
+}) BVT (clib_bihash_shared_header);
+/* *INDENT-ON* */
+
+STATIC_ASSERT_SIZEOF (BVT (clib_bihash_shared_header), 8 * sizeof (u64));
+
typedef struct
{
- BVT (clib_bihash_value) * values;
BVT (clib_bihash_bucket) * buckets;
volatile u32 *alloc_lock;
u32 log2_nbuckets;
u8 *name;
- BVT (clib_bihash_value) ** freelists;
+ u64 *freelists;
- /*
- * Backing store allocation. Since bihash manages its own
- * freelists, we simple dole out memory at alloc_arena_next.
- */
- uword alloc_arena;
- uword alloc_arena_next;
- uword alloc_arena_size;
+#if BIHASH_32_64_SVM
+ BVT (clib_bihash_shared_header) * sh;
+ int memfd;
+#else
+ BVT (clib_bihash_shared_header) sh;
+#endif
/**
* A custom format function to print the Key and Value of bihash_key instead of default hexdump
} BVT (clib_bihash);
+#if BIHASH_32_64_SVM
+#undef alloc_arena_next
+#undef alloc_arena_size
+#undef alloc_arena
+#undef CLIB_BIHASH_READY_MAGIC
+#define alloc_arena_next(h) (((h)->sh)->alloc_arena_next)
+#define alloc_arena_size(h) (((h)->sh)->alloc_arena_size)
+#define alloc_arena(h) (((h)->sh)->alloc_arena)
+#define CLIB_BIHASH_READY_MAGIC 0xFEEDFACE
+#else
+#undef alloc_arena_next
+#undef alloc_arena_size
+#undef alloc_arena
+#undef CLIB_BIHASH_READY_MAGIC
+#define alloc_arena_next(h) ((h)->sh.alloc_arena_next)
+#define alloc_arena_size(h) ((h)->sh.alloc_arena_size)
+#define alloc_arena(h) ((h)->sh.alloc_arena)
+#define CLIB_BIHASH_READY_MAGIC 0
+#endif
+
static inline void BV (clib_bihash_alloc_lock) (BVT (clib_bihash) * h)
{
while (__atomic_test_and_set (h->alloc_lock, __ATOMIC_ACQUIRE))
static inline void *BV (clib_bihash_get_value) (BVT (clib_bihash) * h,
uword offset)
{
- u8 *hp = (u8 *) h->alloc_arena;
+ u8 *hp = (u8 *) (uword) alloc_arena (h);
u8 *vp = hp + offset;
return (void *) vp;
{
u8 *hp, *vp;
- hp = (u8 *) h->alloc_arena;
+ hp = (u8 *) (uword) alloc_arena (h);
vp = (u8 *) v;
return vp - hp;
void BV (clib_bihash_init)
(BVT (clib_bihash) * h, char *name, u32 nbuckets, uword memory_size);
+#if BIHASH_32_64_SVM
+void BV (clib_bihash_master_init_svm)
+ (BVT (clib_bihash) * h, char *name, u32 nbuckets,
+ u64 base_address, u64 memory_size);
+void BV (clib_bihash_slave_init_svm)
+ (BVT (clib_bihash) * h, char *name, int fd);
+#endif
+
void BV (clib_bihash_set_kvp_format_fn) (BVT (clib_bihash) * h,
format_function_t * fmt_fn);
#else
/* workaround weird GCC bug when using _mm_crc32_u32
which happens with -O2 optimization */
+#if !defined (__i686__)
volatile ("":::"memory");
+#endif
#endif
for (; len >= 4; len -= 4, s += 4)
#define F_SEAL_WRITE 0x0008 /* prevent writes */
#endif
-uword
+u64
clib_mem_vm_get_page_size (int fd)
{
struct stat st = { 0 };
int log2_page_size;
int n_pages;
int old_mpol = -1;
- u64 old_mask[16] = { 0 };
+ long unsigned int old_mask[16] = { 0 };
/* save old numa mem policy if needed */
if (a->flags & (CLIB_MEM_VM_F_NUMA_PREFER | CLIB_MEM_VM_F_NUMA_FORCE))
if (old_mpol != -1)
{
int rv;
- u64 mask[16] = { 0 };
+ long unsigned int mask[16] = { 0 };
mask[0] = 1 << a->numa_node;
rv = set_mempolicy (MPOL_BIND, mask, sizeof (mask) * 8 + 1);
if (rv == -1 && a->numa_node != 0 &&
h = &tm->hash;
+#if BIHASH_32_64_SVM
+ BV (clib_bihash_master_init_svm) (h, "test", user_buckets,
+ 0x30000000 /* base_addr */ ,
+ user_memory_size);
+#else
BV (clib_bihash_init) (h, "test", user_buckets, user_memory_size);
+#endif
before = clib_time_now (&tm->clib_time);
h = &tm->hash;
+#if BIHASH_32_64_SVM
+ BV (clib_bihash_master_init_svm) (h, "test", tm->nbuckets,
+ 0x30000000 /* base_addr */ ,
+ tm->hash_memory_size);
+#else
BV (clib_bihash_init) (h, "test", tm->nbuckets, tm->hash_memory_size);
+#endif
fformat (stdout, "Add %d items to %d buckets\n", tm->nitems, tm->nbuckets);
h = &tm->hash;
+#if BIHASH_32_64_SVM
+ BV (clib_bihash_master_init_svm) (h, "test", tm->nbuckets,
+ 0x30000000 /* base_addr */ ,
+ tm->hash_memory_size);
+#else
BV (clib_bihash_init) (h, "test", tm->nbuckets, tm->hash_memory_size);
+#endif
tm->thread_barrier = 1;
h = &tm->hash;
+#if BIHASH_32_64_SVM
+ BV (clib_bihash_master_init_svm) (h, "test", tm->nbuckets,
+ 0x30000000 /* base_addr */ ,
+ tm->hash_memory_size);
+#else
BV (clib_bihash_init) (h, "test", tm->nbuckets, tm->hash_memory_size);
+#endif
for (acycle = 0; acycle < tm->ncycles; acycle++)
{
fformat (stdout, "End of run, should be empty...\n");
fformat (stdout, "%U", BV (format_bihash), h, 0 /* very verbose */ );
+
+ BV (clib_bihash_free) (h);
+
return 0;
}
int which = 0;
tm->report_every_n = 1;
- tm->hash_memory_size = 4095ULL << 20;
+ tm->hash_memory_size = 1ULL << 30;
while (unformat_check_input (i) != UNFORMAT_END_OF_INPUT)
{
/* Vector types. */
-#if defined (__MMX__) || defined (__IWMMXT__) || defined (__aarch64__)
+#if defined (__MMX__) || defined (__IWMMXT__) || defined (__aarch64__) \
+ || defined (__i686__)
#define CLIB_HAVE_VEC64
#endif
-#if defined (__aarch64__) && defined(__ARM_NEON)
+#if defined (__aarch64__) && defined(__ARM_NEON) || defined (__i686__)
#define CLIB_HAVE_VEC128
#endif
Code Review / vpp.git / commitdiff