Differential D32193 Diff 95850 contrib/ofed/libmlx5/dbrec.c

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contrib/ofed/libmlx5/dbrec.c

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static struct mlx5_db_page __add_page(struct mlx5_context context)		static struct mlx5_db_page __add_page(struct mlx5_context context)
{		{
struct mlx5_db_page *page;		struct mlx5_db_page *page;
int ps = to_mdev(context->ibv_ctx.device)->page_size;		int ps = to_mdev(context->ibv_ctx.device)->page_size;
int pp;		int pp;
int i;		int i;
int nlong;		int nlong;
		int ret;

pp = ps / context->cache_line_size;		pp = ps / context->cache_line_size;
nlong = (pp + 8 * sizeof(long) - 1) / (8 * sizeof(long));		nlong = (pp + 8 * sizeof(long) - 1) / (8 * sizeof(long));

page = malloc(sizeof page + nlong sizeof(long));		page = malloc(sizeof page + nlong sizeof(long));
if (!page)		if (!page)
return NULL;		return NULL;

if (mlx5_alloc_buf(&page->buf, ps, ps)) {		if (mlx5_is_extern_alloc(context))
		ret = mlx5_alloc_buf_extern(context, &page->buf, ps);
		else
		ret = mlx5_alloc_buf(&page->buf, ps, ps);
		if (ret) {
free(page);		free(page);
return NULL;		return NULL;
}		}

page->num_db = pp;		page->num_db = pp;
page->use_cnt = 0;		page->use_cnt = 0;
for (i = 0; i < nlong; ++i)		for (i = 0; i < nlong; ++i)
page->free[i] = ~0;		page->free[i] = ~0;
▲ Show 20 Lines • Show All 61 Lines • ▼ Show 20 Lines	void mlx5_free_db(struct mlx5_context context, __be32 db)
if (!--page->use_cnt) {		if (!--page->use_cnt) {
if (page->prev)		if (page->prev)
page->prev->next = page->next;		page->prev->next = page->next;
else		else
context->db_list = page->next;		context->db_list = page->next;
if (page->next)		if (page->next)
page->next->prev = page->prev;		page->next->prev = page->prev;

		if (page->buf.type == MLX5_ALLOC_TYPE_EXTERNAL)
		mlx5_free_buf_extern(context, &page->buf);
		else
mlx5_free_buf(&page->buf);		mlx5_free_buf(&page->buf);

free(page);		free(page);
}		}

out:		out:
pthread_mutex_unlock(&context->db_list_mutex);		pthread_mutex_unlock(&context->db_list_mutex);
}		}