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| author | Felix Manlunas <felix.manlunas@cavium.com> | 2017-03-29 17:56:43 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-03-22 09:23:23 +0100 |
| commit | fb45f5f30a77b56e7f30594e2313b3f4368d6bf5 (patch) | |
| tree | c4b4152c956ae8ccbe324d68fa392192939a22dd /include/linux/input | |
| parent | e5d46d1ede440dd6af24f3e8c373cf1fc666a330 (diff) | |
vxlan: vxlan dev should inherit lowerdev's gso_max_size
[ Upstream commit d6acfeb17d030bb3907e77c048b0e7783ad8e5a9 ]
vxlan dev currently ignores lowerdev's gso_max_size, which adversely
affects TSO performance of liquidio if it's the lowerdev. Egress TCP
packets' skb->len often exceed liquidio's advertised gso_max_size. This
may happen on other NIC drivers.
Fix it by assigning lowerdev's gso_max_size to that of vxlan dev. Might as
well do likewise for gso_max_segs.
Single flow TSO throughput of liquidio as lowerdev (using iperf3):
Before the patch: 139 Mbps
After the patch : 8.68 Gbps
Percent increase: 6,144 %
Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com>
Signed-off-by: Satanand Burla <satananda.burla@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/input')
0 files changed, 0 insertions, 0 deletions