On 9/17/2020 3:16 AM, Hu, Jiayu wrote:
-----Original Message-----
From: [email protected] <[email protected]>
Sent: Thursday, September 17, 2020 10:13 AM
To: [email protected]
Cc: Hu, Jiayu <[email protected]>; [email protected];
[email protected]; [email protected]
Subject: [PATCH v2] gso: fix pyld_unit_size issue for udp gso
From: Yi Yang <[email protected]>
Fragment offset of IPv4 header is measured in units of
8 bytes. Fragment offset of UDP fragments will be wrong
after GSO if pyld_unit_size isn't multiple of 8. Say
pyld_unit_size is 1500, fragment offset of the second
UDP fragment will be 187 (i.e. 1500 / 8), which means 1496,
and it will result in 4-byte data loss (1500 - 1496 = 4).
So UDP GRO will reassemble out a wrong packet.
Fixes: b166d4f30b66 ("gso: support UDP/IPv4 fragmentation")
Signed-off-by: Yi Yang <[email protected]>
> Acked-by: Jiayu Hu <[email protected]>
>
Applied to dpdk-next-net/main, thanks.
