2 * Copyright (c) 2003, 2004 Silicon Graphics International Corp.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions, and the following disclaimer,
10 * without modification.
11 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
12 * substantially similar to the "NO WARRANTY" disclaimer below
13 * ("Disclaimer") and any redistribution must be conditioned upon
14 * including a substantially similar Disclaimer requirement for further
15 * binary redistribution.
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
26 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
27 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
28 * POSSIBILITY OF SUCH DAMAGES.
30 * $Id: //depot/users/kenm/FreeBSD-test2/sys/cam/ctl/ctl_mem_pool.h#1 $
34 * CAM Target Layer memory pool code.
36 * Author: Ken Merry <ken@FreeBSD.org>
39 #ifndef _CTL_MEMPOOL_H_
40 #define _CTL_MEMPOOL_H_
44 CTL_MEM_POOL_PERM_GROW
48 ctl_mem_pool_flags flags;
53 STAILQ_HEAD(, ctl_mem_element) free_mem_list;
58 CTL_MEM_ELEMENT_PREALLOC
59 } ctl_mem_element_flags;
61 struct ctl_mem_element {
62 ctl_mem_element_flags flags;
63 struct ctl_mem_pool *pool;
65 STAILQ_ENTRY(ctl_mem_element) links;
70 MALLOC_DECLARE(M_CTL_POOL);
72 int ctl_init_mem_pool(struct ctl_mem_pool *pool, int chunk_size,
73 ctl_mem_pool_flags flags, int grow_inc,
74 int initial_pool_size);
75 struct ctl_mem_element *ctl_alloc_mem_element(struct ctl_mem_pool *pool,
77 void ctl_free_mem_element(struct ctl_mem_element *mem);
78 int ctl_grow_mem_pool(struct ctl_mem_pool *pool, int count,
80 int ctl_shrink_mem_pool(struct ctl_mem_pool *pool);
83 #endif /* _CTL_MEMPOOL_H_ */