New upstream version 18.11-rc1
[deb_dpdk.git] / drivers / common / cpt / cpt_pmd_ops_helper.c
1 /* SPDX-License-Identifier: BSD-3-Clause
2  * Copyright(c) 2018 Cavium, Inc
3  */
4
5 #include <rte_common.h>
6
7 #include "cpt_common.h"
8 #include "cpt_hw_types.h"
9 #include "cpt_mcode_defines.h"
10 #include "cpt_pmd_ops_helper.h"
11
12 #define CPT_MAX_IV_LEN 16
13 #define CPT_OFFSET_CONTROL_BYTES 8
14
15 int32_t
16 cpt_pmd_ops_helper_get_mlen_direct_mode(void)
17 {
18         uint32_t len = 0;
19
20         /* Request structure */
21         len = sizeof(struct cpt_request_info);
22
23         /* CPT HW result structure plus extra as it is aligned */
24         len += 2*sizeof(cpt_res_s_t);
25
26         return len;
27 }
28
29 int
30 cpt_pmd_ops_helper_get_mlen_sg_mode(void)
31 {
32         uint32_t len = 0;
33
34         len += sizeof(struct cpt_request_info);
35         len += CPT_OFFSET_CONTROL_BYTES + CPT_MAX_IV_LEN;
36         len += ROUNDUP8(SG_LIST_HDR_SIZE +
37                         (ROUNDUP4(CPT_MAX_SG_IN_OUT_CNT) >> 2) * SG_ENTRY_SIZE);
38         len += 2 * COMPLETION_CODE_SIZE;
39         len += 2 * sizeof(cpt_res_s_t);
40         return len;
41 }