patch 'common/iavf: avoid copy in async mode' has been queued to stable release 20.11.7

[luca.boccassi at gmail.com]

Hi,

FYI, your patch has been queued to stable release 20.11.7

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 11/05/22. So please
shout if anyone has objections.

Also note that after the patch there's a diff of the upstream commit vs the
patch applied to the branch. This will indicate if there was any rebasing
needed to apply to the stable branch. If there were code changes for rebasing
(ie: not only metadata diffs), please double check that the rebase was
correctly done.

Queued patches are on a temporary branch at:
https://github.com/kevintraynor/dpdk-stable

This queued commit can be viewed at:
https://github.com/kevintraynor/dpdk-stable/commit/f21c69d6d985e2a3f391ec4a56f3407ef25199ee

Thanks.

Luca Boccassi

---
>From f21c69d6d985e2a3f391ec4a56f3407ef25199ee Mon Sep 17 00:00:00 2001
From: Steven Zou <steven.zou at intel.com>
Date: Mon, 5 Sep 2022 09:42:06 +0800
Subject: [PATCH] common/iavf: avoid copy in async mode

[ upstream commit c60fad56266fef1f5f6e08c062806e137713e9da ]

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

Fixes: e5b2a9e957e7 ("net/avf/base: add base code for avf PMD")

Signed-off-by: Steven Zou <steven.zou at intel.com>
Acked-by: Qi Zhang <qi.z.zhang at intel.com>
---
 drivers/common/iavf/iavf_adminq.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/common/iavf/iavf_adminq.c b/drivers/common/iavf/iavf_adminq.c
index 8d03de0553..c6c2feae59 100644
--- a/drivers/common/iavf/iavf_adminq.c
+++ b/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)
-- 
2.34.1

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2022-11-03 09:27:27.486361350 +0000
+++ 0034-common-iavf-avoid-copy-in-async-mode.patch	2022-11-03 09:27:25.381422595 +0000
@@ -1 +1 @@
-From c60fad56266fef1f5f6e08c062806e137713e9da Mon Sep 17 00:00:00 2001
+From f21c69d6d985e2a3f391ec4a56f3407ef25199ee Mon Sep 17 00:00:00 2001
@@ -5,0 +6,2 @@
+[ upstream commit c60fad56266fef1f5f6e08c062806e137713e9da ]
+
@@ -10 +11,0 @@
-Cc: stable at dpdk.org
@@ -19 +20 @@
-index 8b305c0fe3..56c8a519be 100644
+index 8d03de0553..c6c2feae59 100644