From: Edward Cree <ecree@solarflare•com>
To: David Miller <davem@davemloft•net>
Cc: <netdev@vger•kernel.org>, <linux-net-drivers@solarflare•com>,
<tom@herbertland•com>, <alexander.duyck@gmail•com>
Subject: [PATCH v4 net-next 0/8] Local Checksum Offload
Date: Fri, 5 Feb 2016 20:39:34 +0000 [thread overview]
Message-ID: <56B50886.1050201@solarflare.com> (raw)
Tested with VxLAN, GRE and FOU-IPIP tunnels. Not tested with GENEVE,
because iproute2 doesn't support enabling checksums on GENEVE tunnels.
Also tested VxLAN with IPv6 (as both inner and outer protocol).
Changes from v3:
* Fixed inverted checksum values introduced in v3.
* Don't mangle zero checksums in GRE.
* Clear skb->encapsulation in iptunnel_handle_offloads when not using
CHECKSUM_PARTIAL, lest drivers incorrectly interpret that as a request
for inner checksum offload.
Changes from v2:
* Added support for IPv4 GRE.
* Split out 'always set up for checksum offload' into its own patch.
* Removed csum_help from iptunnel_handle_offloads.
* Rewrote LCO callers to only fold once.
* Simplified nocheck handling.
Changes from v1:
* Enabled support in more encapsulation protocols.
I think it now covers everything except GRE.
* Wrote up some documentation covering TX checksum offload, LCO and RCO.
Edward Cree (8):
net: local checksum offload for encapsulation
net: udp: always set up for CHECKSUM_PARTIAL offload
net: enable LCO for udp_tunnel_handle_offloads() users
net: vxlan: enable local checksum offload
fou: enable LCO in FOU and GUE
net: gre: Implement LCO for GRE over IPv4
net: ip_tunnel: remove 'csum_help' argument to
iptunnel_handle_offloads
Documentation/networking: add checksum-offloads.txt to explain LCO
Documentation/networking/00-INDEX | 2 +
Documentation/networking/checksum-offloads.txt | 119 +++++++++++++++++++++++++
drivers/net/vxlan.c | 18 ++--
include/linux/skbuff.h | 26 ++++++
include/net/ip_tunnels.h | 3 +-
include/net/udp_tunnel.h | 2 +-
net/ipv4/fou.c | 14 ++-
net/ipv4/ip_gre.c | 17 +++-
net/ipv4/ip_tunnel_core.c | 22 ++---
net/ipv4/ipip.c | 2 +-
net/ipv4/udp.c | 28 ++----
net/ipv6/ip6_checksum.c | 23 ++---
net/ipv6/sit.c | 4 +-
net/netfilter/ipvs/ip_vs_xmit.c | 6 +-
14 files changed, 201 insertions(+), 85 deletions(-)
create mode 100644 Documentation/networking/checksum-offloads.txt
next reply other threads:[~2016-02-05 20:39 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-05 20:39 Edward Cree [this message]
2016-02-05 20:40 ` [PATCH net-next 1/8] net: local checksum offload for encapsulation Edward Cree
2016-02-05 20:41 ` [PATCH net-next 2/8] net: udp: always set up for CHECKSUM_PARTIAL offload Edward Cree
2016-02-05 20:41 ` [PATCH net-next 3/8] net: enable LCO for udp_tunnel_handle_offloads() users Edward Cree
2016-02-05 20:42 ` [PATCH net-next 4/8] net: vxlan: enable local checksum offload Edward Cree
2016-02-05 20:42 ` [PATCH net-next 5/8] fou: enable LCO in FOU and GUE Edward Cree
2016-02-05 20:42 ` [PATCH net-next 6/8] net: gre: Implement LCO for GRE over IPv4 Edward Cree
2016-02-05 20:42 ` [PATCH net-next 7/8] net: ip_tunnel: remove 'csum_help' argument to iptunnel_handle_offloads Edward Cree
2016-02-05 20:43 ` [PATCH net-next 8/8] Documentation/networking: add checksum-offloads.txt to explain LCO Edward Cree
2016-02-11 12:29 ` [PATCH v4 net-next 0/8] Local Checksum Offload David Miller
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