fadc1ea15c
Add helper functions to get meta len for asymmetric operations Signed-off-by: Anoob Joseph <anoobj@marvell.com> Signed-off-by: Kanaka Durga Kotamarthy <kkotamarthy@marvell.com> Signed-off-by: Sunila Sahu <ssahu@marvell.com> Acked-by: Akhil Goyal <akhil.goyal@nxp.com>
57 lines
1.2 KiB
C
57 lines
1.2 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause
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* Copyright(c) 2018 Cavium, Inc
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*/
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#include <rte_common.h>
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#include "cpt_common.h"
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#include "cpt_hw_types.h"
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#include "cpt_mcode_defines.h"
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#include "cpt_pmd_ops_helper.h"
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#define CPT_MAX_IV_LEN 16
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#define CPT_OFFSET_CONTROL_BYTES 8
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#define CPT_MAX_ASYM_OP_NUM_PARAMS 5
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#define CPT_MAX_ASYM_OP_MOD_LEN 1024
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int32_t
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cpt_pmd_ops_helper_get_mlen_direct_mode(void)
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{
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uint32_t len = 0;
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/* Request structure */
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len = sizeof(struct cpt_request_info);
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/* CPT HW result structure plus extra as it is aligned */
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len += 2*sizeof(cpt_res_s_t);
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return len;
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}
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int
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cpt_pmd_ops_helper_get_mlen_sg_mode(void)
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{
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uint32_t len = 0;
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len += sizeof(struct cpt_request_info);
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len += CPT_OFFSET_CONTROL_BYTES + CPT_MAX_IV_LEN;
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len += ROUNDUP8(SG_LIST_HDR_SIZE +
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(ROUNDUP4(CPT_MAX_SG_IN_OUT_CNT) >> 2) * SG_ENTRY_SIZE);
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len += 2 * COMPLETION_CODE_SIZE;
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len += 2 * sizeof(cpt_res_s_t);
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return len;
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}
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int
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cpt_pmd_ops_helper_asym_get_mlen(void)
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{
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uint32_t len;
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/* Get meta len for linear buffer (direct) mode */
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len = cpt_pmd_ops_helper_get_mlen_direct_mode();
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/* Get meta len for asymmetric operations */
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len += CPT_MAX_ASYM_OP_NUM_PARAMS * CPT_MAX_ASYM_OP_MOD_LEN;
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return len;
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}
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