X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=src%2Fvppinfra%2Fpool.c;h=1f3b96f0f0ad00c46e2e37a673e9ad12593bd089;hb=f6f21db2e30b83236464887df62f50a189bbb859;hp=ed83b41afef9e57bc6e25a9e84ba5e98e321b890;hpb=b7f1faa7fbd4575f28766e552a73810c6de0ace3;p=vpp.git

diff --git a/src/vppinfra/pool.c b/src/vppinfra/pool.c
index ed83b41afef..1f3b96f0f0a 100644
--- a/src/vppinfra/pool.c
+++ b/src/vppinfra/pool.c
@@ -37,95 +37,40 @@
 
 #include <vppinfra/pool.h>
 
-void
-_pool_init_fixed (void **pool_ptr, u32 elt_size, u32 max_elts)
+__clib_export void
+_pool_init_fixed (void **pool_ptr, uword elt_size, uword max_elts, uword align)
 {
-  u8 *mmap_base;
-  u64 vector_size;
-  u64 free_index_size;
-  u64 total_size;
-  u64 page_size;
-  pool_header_t *fh;
-  vec_header_t *vh;
+  uword *b;
+  pool_header_t *ph;
   u8 *v;
-  u32 *fi;
   u32 i;
-  u32 set_bits;
+  vec_attr_t va = { .elt_sz = elt_size,
+		    .align = align,
+		    .hdr_sz = sizeof (pool_header_t) };
 
   ASSERT (elt_size);
   ASSERT (max_elts);
 
-  vector_size = pool_aligned_header_bytes + vec_header_bytes (0)
-    + (u64) elt_size *max_elts;
+  v = _vec_alloc_internal (max_elts, &va);
 
-  free_index_size = vec_header_bytes (0) + sizeof (u32) * max_elts;
-
-  /* Round up to a cache line boundary */
-  vector_size = (vector_size + CLIB_CACHE_LINE_BYTES - 1)
-    & ~(CLIB_CACHE_LINE_BYTES - 1);
-
-  free_index_size = (free_index_size + CLIB_CACHE_LINE_BYTES - 1)
-    & ~(CLIB_CACHE_LINE_BYTES - 1);
-
-  total_size = vector_size + free_index_size;
-
-  /* Round up to an even number of pages */
-  page_size = clib_mem_get_page_size ();
-  total_size = (total_size + page_size - 1) & ~(page_size - 1);
-
-  /* mmap demand zero memory */
-
-  mmap_base = mmap (0, total_size, PROT_READ | PROT_WRITE,
-		    MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
-
-  if (mmap_base == MAP_FAILED)
-    {
-      clib_unix_warning ("mmap");
-      *pool_ptr = 0;
-    }
-
-  /* First comes the pool header */
-  fh = (pool_header_t *) mmap_base;
-  /* Find the user vector pointer */
-  v = (u8 *) (mmap_base + pool_aligned_header_bytes);
-  /* Finally, the vector header */
-  vh = _vec_find (v);
-
-  fh->free_bitmap = 0;		/* No free elts (yet) */
-  fh->max_elts = max_elts;
-  fh->mmap_base = mmap_base;
-  fh->mmap_size = total_size;
-
-  vh->len = max_elts;
+  ph = pool_header (v);
+  ph->max_elts = max_elts;
 
   /* Build the free-index vector */
-  vh = (vec_header_t *) (v + vector_size);
-  vh->len = max_elts;
-  fi = (u32 *) (vh + 1);
-
-  fh->free_indices = fi;
+  vec_validate_aligned (ph->free_indices, max_elts - 1, CLIB_CACHE_LINE_BYTES);
+  for (i = 0; i < max_elts; i++)
+    ph->free_indices[i] = (max_elts - 1) - i;
 
   /* Set the entire free bitmap */
-  clib_bitmap_alloc (fh->free_bitmap, max_elts);
-  memset (fh->free_bitmap, 0xff, vec_len (fh->free_bitmap) * sizeof (uword));
-
-  /* Clear any extraneous set bits */
-  set_bits = vec_len (fh->free_bitmap) * BITS (uword);
+  clib_bitmap_alloc (ph->free_bitmap, max_elts);
 
-  for (i = max_elts; i < set_bits; i++)
-    fh->free_bitmap = clib_bitmap_set (fh->free_bitmap, i, 0);
+  for (b = ph->free_bitmap, i = max_elts; i >= uword_bits;
+       i -= uword_bits, b++)
+    b[0] = ~0ULL;
 
-  /* Create the initial free vector */
-  for (i = 0; i < max_elts; i++)
-    fi[i] = (max_elts - 1) - i;
+  if (i)
+    b[0] = pow2_mask (i);
 
   *pool_ptr = v;
 }
 
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */