Subject: [PATCH net-next] netdevsim: add ipsec hw_features

From: Hangbin Liu <[email-masked]>
Date: Wed, 15 Oct 2025 08:36:49 +0000

Currently, netdevsim only sets dev->features, which makes the ESP features
fixed. For example:

  # ethtool -k eni0np1 | grep esp
  tx-esp-segmentation: on [fixed]
  esp-hw-offload: on [fixed]
  esp-tx-csum-hw-offload: on [fixed]

This patch adds the ESP features to hw_features, allowing them to be
changed manually. For example:

  # ethtool -k eni0np1 | grep esp
  tx-esp-segmentation: on
  esp-hw-offload: on
  esp-tx-csum-hw-offload: on

Suggested-by: Sabrina Dubroca <[email-masked]>
Signed-off-by: Hangbin Liu <[email-masked]>
---
 drivers/net/netdevsim/ipsec.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/netdevsim/ipsec.c b/drivers/net/netdevsim/ipsec.c
index 47cdee5577d4..36a1be4923d6 100644
--- a/drivers/net/netdevsim/ipsec.c
+++ b/drivers/net/netdevsim/ipsec.c
@@ -277,6 +277,7 @@ void nsim_ipsec_init(struct netdevsim *ns)
 				 NETIF_F_GSO_ESP)
 
 	ns->netdev->features |= NSIM_ESP_FEATURES;
+	ns->netdev->hw_features |= NSIM_ESP_FEATURES;
 	ns->netdev->hw_enc_features |= NSIM_ESP_FEATURES;
 
 	ns->ipsec.pfile = debugfs_create_file("ipsec", 0400,
-- 
2.50.1