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net: add GSO UDP L4 and GSO fraglists to the list of software-backed types 

Commit e20cf8d3f1 ("udp: implement GRO for plain UDP sockets.") and
commit 9fd1ff5d2a ("udp: Support UDP fraglist GRO/GSO.") made UDP L4
and fraglisted GRO/GSO fully supported by the software fallback mode.
We can safely add them to NETIF_F_GSO_SOFTWARE to allow logical/virtual
netdevs to forward these types of skbs up to the real drivers.

Signed-off-by: Alexander Lobakin <alobakin@pm.me>
Acked-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Alexander Lobakin 2020-11-01 13:17:07 +00:00 committed by Jakub Kicinski
parent c1c0f6eac3
commit 2e4ef10f58
1 changed files with 2 additions and 2 deletions
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4
include/linux/netdev_features.h
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@ -207,8 +207,8 @@ static inline int find_next_netdev_feature(u64 feature, unsigned long start)
NETIF_F_FSO)
/* List of features with software fallbacks. */
#define NETIF_F_GSO_SOFTWARE (NETIF_F_ALL_TSO | \
NETIF_F_GSO_SCTP)
#define NETIF_F_GSO_SOFTWARE (NETIF_F_ALL_TSO | NETIF_F_GSO_SCTP | \
NETIF_F_GSO_UDP_L4 | NETIF_F_GSO_FRAGLIST)
/*
* If one device supports one of these features, then enable them