LXR dpdk/drivers/crypto/cnxk/cn10k_ipsec_la

   1/* SPDX-License-Identifier: BSD-3-Clause
   2 * Copyright(C) 2021 Marvell.
   3 */
   4
   5#ifndef __CN10K_IPSEC_LA_OPS_H__
   6#define __CN10K_IPSEC_LA_OPS_H__
   7
   8#include <rte_crypto_sym.h>
   9#include <rte_security.h>
  10
  11#include "cn10k_cryptodev.h"
  12#include "cn10k_ipsec.h"
  13#include "cnxk_cryptodev.h"
  14
  15static __rte_always_inline int32_t
  16ipsec_po_out_rlen_get(struct cn10k_ipsec_sa *sess, uint32_t plen)
  17{
  18        uint32_t enc_payload_len;
  19
  20        enc_payload_len =
  21                RTE_ALIGN_CEIL(plen + sess->roundup_len, sess->roundup_byte);
  22
  23        return sess->partial_len + enc_payload_len;
  24}
  25
  26static __rte_always_inline int
  27process_outb_sa(struct rte_crypto_op *cop, struct cn10k_ipsec_sa *sess,
  28                struct cpt_inst_s *inst)
  29{
  30        struct rte_crypto_sym_op *sym_op = cop->sym;
  31        struct rte_mbuf *m_src = sym_op->m_src;
  32        uint32_t dlen, rlen, extend_tail;
  33        char *mdata;
  34
  35        dlen = rte_pktmbuf_pkt_len(m_src);
  36        rlen = ipsec_po_out_rlen_get(sess, dlen);
  37
  38        extend_tail = rlen - dlen;
  39
  40        mdata = rte_pktmbuf_append(m_src, extend_tail);
  41        if (unlikely(mdata == NULL)) {
  42                plt_dp_err("Not enough tail room");
  43                return -ENOMEM;
  44        }
  45
  46        /* Prepare CPT instruction */
  47        inst->w4.u64 = sess->inst.w4;
  48        inst->w4.s.dlen = dlen;
  49        inst->dptr = rte_pktmbuf_iova(m_src);
  50        inst->rptr = inst->dptr;
  51
  52        return 0;
  53}
  54
  55static __rte_always_inline int
  56process_inb_sa(struct rte_crypto_op *cop, struct cn10k_ipsec_sa *sa,
  57               struct cpt_inst_s *inst)
  58{
  59        struct rte_crypto_sym_op *sym_op = cop->sym;
  60        struct rte_mbuf *m_src = sym_op->m_src;
  61        uint32_t dlen;
  62
  63        dlen = rte_pktmbuf_pkt_len(m_src);
  64
  65        /* Prepare CPT instruction */
  66        inst->w4.u64 = sa->inst.w4;
  67        inst->w4.s.dlen = dlen;
  68        inst->dptr = rte_pktmbuf_iova(m_src);
  69        inst->rptr = inst->dptr;
  70
  71        return 0;
  72}
  73
  74#endif /* __CN10K_IPSEC_LA_OPS_H__ */
  75