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| author | Xin Long <lucien.xin@gmail.com> | 2024-02-19 14:16:04 -0500 |
|---|---|---|
| committer | Stephen Hemminger <stephen@networkplumber.org> | 2024-02-19 11:41:45 -0800 |
| commit | 1d7f908103be90e8ac836ef0ce03b72997664b5a (patch) | |
| tree | 848fd92f205ccd28196735de8d4ccc9652f33c01 | |
| parent | ecac96e37d6ff4659a0f812dd8b3b9c0d7cc61fc (diff) | |
| download | iproute2-1d7f908103be90e8ac836ef0ce03b72997664b5a.tar.gz | |
man: ip-link.8: add a note for gso_ipv4_max_size
As Paolo noticed, a skb->len check against gso_max_size was added in:
https://lore.kernel.org/netdev/20231219125331.4127498-1-edumazet@google.com/
gso_max_size needs to be set to a value greater than or equal to
gso_ipv4_max_size to make BIG TCP IPv4 work properly.
To not break the current setup, this patch just adds a note into its
man doc for this.
Reported-by: Xiumei Mu <xmu@redhat.com>
Signed-off-by: Xin Long <lucien.xin@gmail.com>
| -rw-r--r-- | man/man8/ip-link.8.in | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/man/man8/ip-link.8.in b/man/man8/ip-link.8.in index dd686ae15..31e2d7f0f 100644 --- a/man/man8/ip-link.8.in +++ b/man/man8/ip-link.8.in @@ -445,6 +445,11 @@ TCP for IPv6 on this device when the size is greater than 65536. specifies the recommended maximum size of a IPv4 Generic Segment Offload packet the new device should accept. This is especially used to enable BIG TCP for IPv4 on this device by setting to a size greater than 65536. +Note that +.B gso_max_size +needs to be set to a size greater than or equal to +.B gso_ipv4_max_size +to really enable BIG TCP for IPv4. .TP .BI gso_max_segs " SEGMENTS " |