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 } 42