[dpdk-dev] [PATCH v2] net/i40e: fix IPv4 fragment offload issue

Zhang, Qi Z qi.z.zhang at intel.com
Fri Mar 5 09:56:47 CET 2021



> -----Original Message-----
> From: dev <dev-bounces at dpdk.org> On Behalf Of Xing, Beilei
> Sent: Tuesday, March 2, 2021 3:17 PM
> To: Li, Xiaoyun <xiaoyun.li at intel.com>; Guo, Jia <jia.guo at intel.com>; Lu,
> Wenzhuo <wenzhuo.lu at intel.com>
> Cc: dev at dpdk.org; stable at dpdk.org
> Subject: Re: [dpdk-dev] [PATCH v2] net/i40e: fix IPv4 fragment offload issue
> 
> 
> 
> > -----Original Message-----
> > From: Li, Xiaoyun <xiaoyun.li at intel.com>
> > Sent: Tuesday, March 2, 2021 3:03 PM
> > To: Xing, Beilei <beilei.xing at intel.com>; Guo, Jia
> > <jia.guo at intel.com>; Lu, Wenzhuo <wenzhuo.lu at intel.com>
> > Cc: dev at dpdk.org; Li, Xiaoyun <xiaoyun.li at intel.com>; stable at dpdk.org
> > Subject: [PATCH v2] net/i40e: fix IPv4 fragment offload issue
> >
> > IPv4 fragment_offset mask was required to be 0 no matter what the spec
> > value was. But zero mask means not caring about fragment_offset field
> > then both non-frag and frag packets should hit the rule.
> >
> > But the actual fragment rules should be like the following:
> > Only non-fragment packets can hit Rule 1:
> > Rule 1: mask=0x3fff, spec=0
> > Only fragment packets can hit rule 2:
> > Rule 2: mask=0x3fff, spec=0x8, last=0x2000
> >
> > This patch allows the above rules.
> >
> > Fixes: 42044b69c67d ("net/i40e: support input set selection for FDIR")
> > Cc: stable at dpdk.org
> >
> > Signed-off-by: Xiaoyun Li <xiaoyun.li at intel.com>
> 
> Acked-by: Beilei Xing <beilei.xing at intel.com>

Applied to dpdk-next-net-intel.

Thanks
Qi


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