[PATCH] net/iavf: add check for mbuf

[Xing, Beilei]

> -----Original Message-----
> From: Ye, MingjinX <mingjinx.ye at intel.com>
> Sent: Tuesday, January 31, 2023 1:20 PM
> To: dev at dpdk.org
> Cc: Yang, Qiming <qiming.yang at intel.com>; Zhou, YidingX
> <yidingx.zhou at intel.com>; Ye, MingjinX <mingjinx.ye at intel.com>;
> stable at dpdk.org; Wu, Jingjing <jingjing.wu at intel.com>; Xing, Beilei
> <beilei.xing at intel.com>
> Subject: [PATCH] net/iavf: add check for mbuf
> 
> The scalar Tx path would send wrong mbuf that causes the kernel driver to fire
> the MDD event.
> 
> This patch adds mbuf detection in tx_prepare to fix this issue, rte_errno will be
> set to EINVAL and returned if the verification fails.
 
I don't think PMD needs to check all packets contents, there're so many protocols supported.
It depends on HW capability, or application and user should make sure packets accuracy.

> 
> Fixes: 3fd32df381f8 ("net/iavf: check Tx packet with correct UP and queue")
> Fixes: 12b435bf8f2f ("net/iavf: support flex desc metadata extraction")
> Fixes: f28fbd1e6b50 ("net/iavf: check max SIMD bitwidth")
> Cc: stable at dpdk.org
> 
> Signed-off-by: Mingjin Ye <mingjinx.ye at intel.com>