patch 'net/gve: clear DQO Tx descriptors before writing' has been queued to stable release 24.11.4

[Kevin Traynor]

Hi,

FYI, your patch has been queued to stable release 24.11.4

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 11/05/25. 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/53ca02042d547407982e7dd5fdd2e980e75da1df

Thanks.

Kevin

---
>From 53ca02042d547407982e7dd5fdd2e980e75da1df Mon Sep 17 00:00:00 2001
From: Joshua Washington <joshwash at google.com>
Date: Mon, 7 Jul 2025 16:18:11 -0700
Subject: [PATCH] net/gve: clear DQO Tx descriptors before writing

[ upstream commit 4ef9cf43d0ee57e082cb9e89f47756f3414171a4 ]

When TSO was introduced, it became possible for two differing descriptor
formats to be written to the descriptor ring, GVE_TX_PKT_DESC_DTYPE_DQO
and GVE_TX_TSO_CTX_DESC_DTYPE_DQO. Because these descriptor types have
different formats, they end up setting different fields, which can be
misinterpreted by the hardware if not fully cleared.

Fixes: 403c671a46b6 ("net/gve: support TSO in DQO RDA")

Signed-off-by: Joshua Washington <joshwash at google.com>
Reviewed-by: Ankit Garg <nktgrg at google.com>
---
 drivers/net/gve/gve_tx_dqo.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/gve/gve_tx_dqo.c b/drivers/net/gve/gve_tx_dqo.c
index 3befbbcacb..169c40d5b0 100644
--- a/drivers/net/gve/gve_tx_dqo.c
+++ b/drivers/net/gve/gve_tx_dqo.c
@@ -160,4 +160,6 @@ gve_tx_fill_seg_desc_dqo(volatile union gve_tx_desc_dqo *desc, struct rte_mbuf *
 {
 	uint32_t hlen = tx_pkt->l2_len + tx_pkt->l3_len + tx_pkt->l4_len;
+
+	desc->tso_ctx = (struct gve_tx_tso_context_desc_dqo) {};
 	desc->tso_ctx.cmd_dtype.dtype = GVE_TX_TSO_CTX_DESC_DTYPE_DQO;
 	desc->tso_ctx.cmd_dtype.tso = 1;
@@ -258,4 +260,5 @@ gve_tx_burst_dqo(void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t nb_pkts)
 
 				txd = &txr[tx_id];
+				txd->pkt = (struct gve_tx_pkt_desc_dqo) {};
 				txd->pkt.buf_addr = rte_cpu_to_le_64(buf_addr);
 				txd->pkt.compl_tag = rte_cpu_to_le_16(first_sw_id);
-- 
2.51.0

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2025-10-31 13:53:52.741001992 +0000
+++ 0015-net-gve-clear-DQO-Tx-descriptors-before-writing.patch	2025-10-31 13:53:52.022523324 +0000
@@ -1 +1 @@
-From 4ef9cf43d0ee57e082cb9e89f47756f3414171a4 Mon Sep 17 00:00:00 2001
+From 53ca02042d547407982e7dd5fdd2e980e75da1df Mon Sep 17 00:00:00 2001
@@ -5,0 +6,2 @@
+[ upstream commit 4ef9cf43d0ee57e082cb9e89f47756f3414171a4 ]
+
@@ -13 +14,0 @@
-Cc: stable at dpdk.org