From: Arek Kusztal <arkadiuszx.kusz...@intel.com>
Driver now support out of place crypto operations,
driver assumes both buffers can be of different size.
Signed-off-by: Arek Kusztal <arkadiuszx.kusztal at intel.com>
---
doc/guides/cryptodevs/qat.rst | 1 -
drivers/crypto/qat/qat_crypto.c | 22 +++++++++++++---------
2 files changed, 13 insertions(+), 10 deletions(-)
diff --git a/doc/guides/cryptodevs/qat.rst b/doc/guides/cryptodevs/qat.rst
index af90b46..4b8f782 100644
--- a/doc/guides/cryptodevs/qat.rst
+++ b/doc/guides/cryptodevs/qat.rst
@@ -62,7 +62,6 @@ Limitations
* 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.
diff --git a/drivers/crypto/qat/qat_crypto.c b/drivers/crypto/qat/qat_crypto.c
index 29c1fe5..55884d6 100644
--- a/drivers/crypto/qat/qat_crypto.c
+++ b/drivers/crypto/qat/qat_crypto.c
@@ -689,17 +689,21 @@ 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));
--
1.7.0.7
