stack/rte_stack_lf.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2019 Intel Corporation
   3  */
   4
   5 #include "rte_stack.h"
   6
   7 void
   8 rte_stack_lf_init(struct rte_stack *s, unsigned int count)
   9 {
  10         struct rte_stack_lf_elem *elems = s->stack_lf.elems;
  11         unsigned int i;
  12
  13         for (i = 0; i < count; i++)
  14                 __rte_stack_lf_push_elems(&s->stack_lf.free,
  15                                           &elems[i], &elems[i], 1);
  16 }
  17
  18 ssize_t
  19 rte_stack_lf_get_memsize(unsigned int count)
  20 {
  21         ssize_t sz = sizeof(struct rte_stack);
  22
  23         sz += RTE_CACHE_LINE_ROUNDUP(count * sizeof(struct rte_stack_lf_elem));
  24
  25         /* Add padding to avoid false sharing conflicts caused by
  26          * next-line hardware prefetchers.
  27          */
  28         sz += 2 * RTE_CACHE_LINE_SIZE;
  29
  30         return sz;
  31 }