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From: "Li, Xiaoyun" <xiaoyun.li@intel.com>
To: "Zhang, AlvinX" <alvinx.zhang@intel.com>, "Ananyev, Konstantin"
<konstantin.ananyev@intel.com>
CC: "dev@dpdk.org" <dev@dpdk.org>, "stable@dpdk.org" <stable@dpdk.org>
Thread-Topic: [PATCH v4 2/2] app/testpmd: fix txonly forwording
Thread-Index: AQHXr1yYNIrhU0F7JkGeIJgpsiJzkauvjpgQ
Date: Wed, 22 Sep 2021 05:58:14 +0000
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References: <20210918030659.12448-1-alvinx.zhang@intel.com>
<20210922024952.11848-1-alvinx.zhang@intel.com>
<20210922024952.11848-2-alvinx.zhang@intel.com>
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Subject: Re: [dpdk-dev] [PATCH v4 2/2] app/testpmd: fix txonly forwording
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Sender: "dev" <dev-bounces@dpdk.org>
> -----Original Message-----
> From: Zhang, AlvinX <alvinx.zhang@intel.com>
> Sent: Wednesday, September 22, 2021 10:50
> To: Li, Xiaoyun <xiaoyun.li@intel.com>; Ananyev, Konstantin
> <konstantin.ananyev@intel.com>
> Cc: dev@dpdk.org; Zhang, AlvinX <alvinx.zhang@intel.com>; stable@dpdk.org
> Subject: [PATCH v4 2/2] app/testpmd: fix txonly forwording
>=20
> When random number of Tx segments is enabled, because the actual number o=
f
> segments may be only one, the first segment of the Tx packets must
> accommodate a complete being sending Eth/IP/UDP packet.
>=20
> Besides, if multiple flow is enabled, the forwarding will update the IP a=
nd UDP
> header, these headers shouldn't cross segments.
> This also requires the first Tx segment can accommodate a complete
> Eth/IP/UDP packet.
>=20
> In addition, if time stamp is enabled, the forwarding needs more Tx segme=
nt
> space for time stamp information.
>=20
> This patch adds checks in beginning of forward engine to make sure all ab=
ove
> conditions are met.
>=20
> Bugzilla ID: 797
> Fixes: 79bec05b32b7 ("app/testpmd: add ability to split outgoing packets"=
)
> Cc: stable@dpdk.org
>=20
> Signed-off-by: Alvin Zhang <alvinx.zhang@intel.com>
Acked-by: Xiaoyun Li <xiaoyun.li@intel.com>