1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2018 Cavium, Inc
5 #include <rte_common.h>
7 #include "cpt_common.h"
8 #include "cpt_hw_types.h"
9 #include "cpt_mcode_defines.h"
10 #include "cpt_pmd_ops_helper.h"
12 #define CPT_MAX_IV_LEN 16
13 #define CPT_OFFSET_CONTROL_BYTES 8
14 #define CPT_MAX_ASYM_OP_NUM_PARAMS 5
15 #define CPT_MAX_ASYM_OP_MOD_LEN 1024
18 cpt_pmd_ops_helper_get_mlen_direct_mode(void)
22 /* Request structure */
23 len = sizeof(struct cpt_request_info);
25 /* CPT HW result structure plus extra as it is aligned */
26 len += 2*sizeof(cpt_res_s_t);
32 cpt_pmd_ops_helper_get_mlen_sg_mode(void)
36 len += sizeof(struct cpt_request_info);
37 len += CPT_OFFSET_CONTROL_BYTES + CPT_MAX_IV_LEN;
38 len += RTE_ALIGN_CEIL((SG_LIST_HDR_SIZE +
39 (RTE_ALIGN_CEIL(CPT_MAX_SG_IN_OUT_CNT, 4) >> 2) *
41 len += 2 * COMPLETION_CODE_SIZE;
42 len += 2 * sizeof(cpt_res_s_t);
47 cpt_pmd_ops_helper_asym_get_mlen(void)
51 /* Get meta len for linear buffer (direct) mode */
52 len = cpt_pmd_ops_helper_get_mlen_direct_mode();
54 /* Get meta len for asymmetric operations */
55 len += CPT_MAX_ASYM_OP_NUM_PARAMS * CPT_MAX_ASYM_OP_MOD_LEN;