[dpdk-dev] [PATCH v2] net/ifc: do not notify before HW ready

[Wang, Xiao W]

Hi,

> -----Original Message-----
> From: Kevin Traynor [mailto:ktraynor at redhat.com]
> Sent: Wednesday, September 26, 2018 1:16 AM
> To: Wang, Xiao W <xiao.w.wang at intel.com>
> Cc: Ye, Xiaolong <xiaolong.ye at intel.com>; Bie, Tiwei <tiwei.bie at intel.com>;
> dev at dpdk.org; stable at dpdk.org
> Subject: Re: [dpdk-dev] [PATCH v2] net/ifc: do not notify before HW ready
> 
> On 09/14/2018 02:25 AM, Xiao Wang wrote:
> > If the device is not clearly reset by the previous driver and holds
> > some invalid ring addr, and the relay thread kicks it before HW is
> > properly re-configured, a bad DMA request may happen.
> >
> > Besides, the notify_addr which is used by the relay thread is set in
> > the vdpa_ifcvf_start function, if a kick relay happens before
> > vdpa_ifcvf_start finishes, a null addr is accessed.
> >
> > Fixes: a3f8150eac6d ("net/ifcvf: add ifcvf vDPA driver")
> >
> 
> Looks like this should be in stable branch too. Can you confirm?	

Yes, they should go also into stable branch, thanks for the notice.

BRs,
Xiao