From: Ankit Garg <nktgrg@google.com>
Date: Tue, 3 Mar 2026 19:55:49 +0000 (-0800)
Subject: gve: Enable hw-gro by default if device supported
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=3c398063ef01b02d7efd31662154fe70fd28ace6;p=thirdparty%2Flinux.git

gve: Enable hw-gro by default if device supported

Change the driver's default behavior to enable hw-gro whenever supported
for device.

Performance observations:
- We observed ~10% improvement in RX single stream throughput across
  various MTU sizes.
- No change in TCP_RR/TCP_CRR latencies

Signed-off-by: Ankit Garg <nktgrg@google.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Reviewed-by: Harshitha Ramamurthy <hramamurthy@google.com>
Signed-off-by: Joshua Washington <joshwash@google.com>
Link: https://patch.msgid.link/20260303195549.2679070-5-joshwash@google.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
---

diff --git a/drivers/net/ethernet/google/gve/gve_adminq.c b/drivers/net/ethernet/google/gve/gve_adminq.c
index 8bd0ceadd927b..129f3e11a442a 100644
--- a/drivers/net/ethernet/google/gve/gve_adminq.c
+++ b/drivers/net/ethernet/google/gve/gve_adminq.c
@@ -1118,8 +1118,10 @@ int gve_adminq_describe_device(struct gve_priv *priv)
 	gve_set_default_rss_sizes(priv);
 
 	/* DQO supports HW-GRO. */
-	if (!gve_is_gqi(priv))
+	if (gve_is_dqo(priv)) {
 		priv->dev->hw_features |= NETIF_F_GRO_HW;
+		priv->dev->features |= NETIF_F_GRO_HW;
+	}
 
 	priv->max_registered_pages =
 				be64_to_cpu(descriptor->max_registered_pages);