[PATCH v4 33/44] net/sxe2: restore PF-only guard in udp tunnel port add

[liujie5 at linkdatatechnology.com]

From: Jie Liu <liujie5 at linkdatatechnology.com>

sxe2_udp_tunnel_port_add_common() lost the check that restricts
UDP tunnel port configuration to PF devices (not VF or
representor), so VF/representor devices can now attempt to add
UDP tunnel ports, which the hardware does not support.

Restore the PF-only guard returning -ENOTSUP, matching the V3
implementation.

Fixes: fff24885f70a ("net/sxe2: support custom UDP tunnel ports")
Cc: stable at dpdk.org
Cc: stephen at networkplumber.org
Signed-off-by: Jie Liu <liujie5 at linkdatatechnology.com>
---
 drivers/net/sxe2/sxe2_ethdev.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/net/sxe2/sxe2_ethdev.c b/drivers/net/sxe2/sxe2_ethdev.c
index 19f81f47c9..0ddc0e1e0e 100644
--- a/drivers/net/sxe2/sxe2_ethdev.c
+++ b/drivers/net/sxe2/sxe2_ethdev.c
@@ -630,6 +630,10 @@ int32_t sxe2_udp_tunnel_port_add_common(struct sxe2_adapter *ad,
 	struct sxe2_udp_tunnel_cfg *tunnel_config;
 	int32_t ret = -1;
 
+	if (ad->dev_type != SXE2_DEV_T_PF || ad->is_dev_repr) {
+		ret = -ENOTSUP;
+		goto l_end;
+	}
 	rte_spinlock_lock(&ad->udp_tunnel_ctx.lock);
 
 	tunnel_config = &ad->udp_tunnel_ctx.tunnel_conf[tunnel_proto];
@@ -659,6 +663,7 @@ int32_t sxe2_udp_tunnel_port_add_common(struct sxe2_adapter *ad,
 
 l_unlock_end:
 	rte_spinlock_unlock(&ad->udp_tunnel_ctx.lock);
+l_end:
 	return ret;
 }
 
-- 
2.52.0