From: Jacek Kalwas <jacek.kal...@intel.com>
In case NIC has support for ESP TX CSUM offload skb->ip_summed is not
set to CHECKSUM_PARTIAL which results in checksum calculated by SW.
Fix enables ESP TX CSUM for UDP by extending condition with check for
NETIF_F_HW_ESP_TX_CSUM.
Signed-off-by: Jacek Kalwas <jacek.kal...@intel.com>
Signed-off-by: Steffen Klassert <steffen.klass...@secunet.com>
---
net/ipv4/ip_output.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index 4c11b810a447..a2dfb5a9ba76 100644
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -907,7 +907,7 @@ static int __ip_append_data(struct sock *sk,
length + fragheaderlen <= mtu &&
rt->dst.dev->features & (NETIF_F_HW_CSUM | NETIF_F_IP_CSUM) &&
!(flags & MSG_MORE) &&
- !exthdrlen)
+ (!exthdrlen || (rt->dst.dev->features & NETIF_F_HW_ESP_TX_CSUM)))
csummode = CHECKSUM_PARTIAL;
cork->length += length;
--
2.14.1
