qat: add out-of-place symmetric operations

[dpdk.git] / drivers / crypto / qat / qat_crypto.c

diff --git a/drivers/crypto/qat/qat_crypto.c b/drivers/crypto/qat/qat_crypto.c
index 9001558..45bb8b3 100644 (file)
--- a/drivers/crypto/qat/qat_crypto.c
+++ b/drivers/crypto/qat/qat_crypto.c
@@ -692,17 +692,21 @@ qat_write_hw_desc_entry(struct rte_crypto_op *op, uint8_t *out_msg)
        *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.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.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));