common/iavf: avoid copy in async mode

[ upstream commit c60fad5 ]

If cmd_details are defined or async flag is set,
don't copy the desc/buff back to temp.

Fixes: e5b2a9e ("net/avf/base: add base code for avf PMD")

Signed-off-by: Steven Zou <steven.zou@intel.com>
Acked-by: Qi Zhang <qi.z.zhang@intel.com>

drivers/common/iavf/iavf_adminq.c

@@ -788,7 +788,8 @@ enum iavf_status iavf_asq_send_command(struct iavf_hw *hw,
 	}
 
 	/* if ready, copy the desc back to temp */
-	if (iavf_asq_done(hw)) {
+	if (iavf_asq_done(hw) &&
+		!details->async && !details->postpone) {
 		iavf_memcpy(desc, desc_on_ring, sizeof(struct iavf_aq_desc),
 			    IAVF_DMA_TO_NONDMA);
 		if (buff != NULL)