-static inline uint32_t
-qat_bpicipher_postprocess(struct qat_sym_session *ctx,
- struct rte_crypto_op *op)
-{
- int block_len = qat_cipher_get_block_size(ctx->qat_cipher_alg);
- struct rte_crypto_sym_op *sym_op = op->sym;
- uint8_t last_block_len = block_len > 0 ?
- sym_op->cipher.data.length % block_len : 0;
-
- if (last_block_len > 0 &&
- ctx->qat_dir == ICP_QAT_HW_CIPHER_ENCRYPT) {
-
- /* Encrypt last block */
- uint8_t *last_block, *dst, *iv;
- uint32_t last_block_offset;
-
- last_block_offset = sym_op->cipher.data.offset +
- sym_op->cipher.data.length - last_block_len;
- last_block = (uint8_t *) rte_pktmbuf_mtod_offset(sym_op->m_src,
- uint8_t *, last_block_offset);
-
- if (unlikely(sym_op->m_dst != NULL))
- /* out-of-place operation (OOP) */
- dst = (uint8_t *) rte_pktmbuf_mtod_offset(sym_op->m_dst,
- uint8_t *, last_block_offset);
- else
- dst = last_block;
-
- if (last_block_len < sym_op->cipher.data.length)
- /* use previous block ciphertext as IV */
- iv = dst - block_len;
- else
- /* runt block, i.e. less than one full block */
- iv = rte_crypto_op_ctod_offset(op, uint8_t *,
- ctx->cipher_iv.offset);
-
-#ifdef RTE_LIBRTE_PMD_QAT_DEBUG_RX
- rte_hexdump(stdout, "BPI: src before post-process:", last_block,
- last_block_len);
- if (sym_op->m_dst != NULL)
- rte_hexdump(stdout, "BPI: dst before post-process:",
- dst, last_block_len);
-#endif
- bpi_cipher_encrypt(last_block, dst, iv, block_len,
- last_block_len, ctx->bpi_ctx);
-#ifdef RTE_LIBRTE_PMD_QAT_DEBUG_RX
- rte_hexdump(stdout, "BPI: src after post-process:", last_block,
- last_block_len);
- if (sym_op->m_dst != NULL)
- rte_hexdump(stdout, "BPI: dst after post-process:", dst,
- last_block_len);
-#endif
- }
- return sym_op->cipher.data.length - last_block_len;
-}
-