patch 'net/iavf: remove reset of Tx prepare function pointer' has been queued to stable release 24.11.2

[Kevin Traynor]

Hi,

FYI, your patch has been queued to stable release 24.11.2

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 02/17/25. 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/15e0157ef8e74951738e46c913b52961ace7076c

Thanks.

Kevin

---
>From 15e0157ef8e74951738e46c913b52961ace7076c Mon Sep 17 00:00:00 2001
From: Bruce Richardson <bruce.richardson at intel.com>
Date: Fri, 13 Dec 2024 14:33:19 +0000
Subject: [PATCH] net/iavf: remove reset of Tx prepare function pointer

[ upstream commit 41be96c907607bc709654f71901913f1534264f8 ]

The iavf driver only contains a single Tx prepare function, so when
selecting the Tx path, there is no need to reset and reassign the
function pointer in the ethdev structure. This fixes an issue where the
pointer was reset to NULL, but never assigned back later on function
selection.

Fixes: 5712bf9d6e14 ("net/iavf: add Tx AVX2 offload path")
Fixes: 08eb6a9cc2e1 ("net/iavf: fix Tx L4 checksum")
Fixes: 4f8259df563a ("net/iavf: enable Tx outer checksum offload on AVX512")

Signed-off-by: Bruce Richardson <bruce.richardson at intel.com>
Acked-by: Vladimir Medvedkin <vladimir.medvedkin at intel.com>
---
 drivers/net/iavf/iavf_rxtx.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/drivers/net/iavf/iavf_rxtx.c b/drivers/net/iavf/iavf_rxtx.c
index 6a093c6746..98a1d3f69d 100644
--- a/drivers/net/iavf/iavf_rxtx.c
+++ b/drivers/net/iavf/iavf_rxtx.c
@@ -4174,5 +4174,4 @@ iavf_set_tx_function(struct rte_eth_dev *dev)
 			goto normal;
 
-		dev->tx_pkt_prepare = NULL;
 		if (use_sse) {
 			PMD_DRV_LOG(DEBUG, "Using Vector Tx (port %d).",
@@ -4191,5 +4190,4 @@ iavf_set_tx_function(struct rte_eth_dev *dev)
 			} else {
 				tx_burst_type = IAVF_TX_AVX2_OFFLOAD;
-				dev->tx_pkt_prepare = iavf_prep_pkts;
 				PMD_DRV_LOG(DEBUG, "Using AVX2 OFFLOAD Vector Tx (port %d).",
 					    dev->data->port_id);
@@ -4204,15 +4202,12 @@ iavf_set_tx_function(struct rte_eth_dev *dev)
 			} else if (check_ret == IAVF_VECTOR_OFFLOAD_PATH) {
 				tx_burst_type = IAVF_TX_AVX512_OFFLOAD;
-				dev->tx_pkt_prepare = iavf_prep_pkts;
 				PMD_DRV_LOG(DEBUG, "Using AVX512 OFFLOAD Vector Tx (port %d).",
 					    dev->data->port_id);
 			} else if (check_ret == IAVF_VECTOR_CTX_PATH) {
 				tx_burst_type = IAVF_TX_AVX512_CTX;
-				dev->tx_pkt_prepare = iavf_prep_pkts;
 				PMD_DRV_LOG(DEBUG, "Using AVX512 CONTEXT Vector Tx (port %d).",
 						dev->data->port_id);
 			} else {
 				tx_burst_type = IAVF_TX_AVX512_CTX_OFFLOAD;
-				dev->tx_pkt_prepare = iavf_prep_pkts;
 				PMD_DRV_LOG(DEBUG, "Using AVX512 CONTEXT OFFLOAD Vector Tx (port %d).",
 					    dev->data->port_id);
@@ -4252,5 +4247,4 @@ normal:
 		    dev->data->port_id);
 	tx_burst_type = IAVF_TX_DEFAULT;
-	dev->tx_pkt_prepare = iavf_prep_pkts;
 
 	if (no_poll_on_link_down) {
-- 
2.48.1

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2025-02-12 17:29:37.635423523 +0000
+++ 0028-net-iavf-remove-reset-of-Tx-prepare-function-pointer.patch	2025-02-12 17:29:34.287945554 +0000
@@ -1 +1 @@
-From 41be96c907607bc709654f71901913f1534264f8 Mon Sep 17 00:00:00 2001
+From 15e0157ef8e74951738e46c913b52961ace7076c Mon Sep 17 00:00:00 2001
@@ -5,0 +6,2 @@
+[ upstream commit 41be96c907607bc709654f71901913f1534264f8 ]
+
@@ -15 +16,0 @@
-Cc: stable at dpdk.org
@@ -24 +25 @@
-index f7df5f21f2..457b5a5655 100644
+index 6a093c6746..98a1d3f69d 100644