This patch adds out-of-place operations to qat symmetric crypto PMD,
i.e. the result of the operation can be written to the destination buffer
instead of overwriting the source buffer as done in "in-place" operation.
Both buffers can be of different sizes.
Previously the qat PMD assumed that m_src and m_dst in rte_crypto_sym_op
were identical.
Signed-off-by: Arek Kusztal <arkadiuszx.kusztal@intel.com>
Acked-by: John Griffin <john.griffin@intel.com>
* Chained mbufs are not supported.
* Hash only is not supported except Snow3G UIA2.
* Cipher only is not supported except Snow3G UEA2.
* Chained mbufs are not supported.
* Hash only is not supported except Snow3G UIA2.
* Cipher only is not supported except Snow3G UEA2.
-* Only in-place is currently supported (destination address is the same as source address).
* Only supports the session-oriented API implementation (session-less APIs are not supported).
* Not performance tuned.
* Snow3g(UEA2) supported only if cipher length, cipher offset fields are byte-aligned.
* Only supports the session-oriented API implementation (session-less APIs are not supported).
* Not performance tuned.
* Snow3g(UEA2) supported only if cipher length, cipher offset fields are byte-aligned.
*qat_req = ctx->fw_req;
qat_req->comn_mid.opaque_data = (uint64_t)(uintptr_t)op;
*qat_req = ctx->fw_req;
qat_req->comn_mid.opaque_data = (uint64_t)(uintptr_t)op;
- /*
- * The following code assumes:
- * - single entry buffer.
- * - always in place.
- */
qat_req->comn_mid.dst_length =
qat_req->comn_mid.dst_length =
- qat_req->comn_mid.src_length =
- rte_pktmbuf_data_len(op->sym->m_src);
+ qat_req->comn_mid.src_length =
+ rte_pktmbuf_data_len(op->sym->m_src);
+
qat_req->comn_mid.dest_data_addr =
qat_req->comn_mid.dest_data_addr =
- qat_req->comn_mid.src_data_addr =
- rte_pktmbuf_mtophys(op->sym->m_src);
+ qat_req->comn_mid.src_data_addr =
+ rte_pktmbuf_mtophys(op->sym->m_src);
+
+ if (unlikely(op->sym->m_dst != NULL)) {
+ qat_req->comn_mid.dest_data_addr =
+ rte_pktmbuf_mtophys(op->sym->m_dst);
+ qat_req->comn_mid.dst_length =
+ rte_pktmbuf_data_len(op->sym->m_dst);
+ }
+
cipher_param = (void *)&qat_req->serv_specif_rqpars;
auth_param = (void *)((uint8_t *)cipher_param + sizeof(*cipher_param));
cipher_param = (void *)&qat_req->serv_specif_rqpars;
auth_param = (void *)((uint8_t *)cipher_param + sizeof(*cipher_param));