On Thu, 19 Sep 2013 02:49:50 +0530
nirmoy das <[email protected]> wrote:

> Hey
> I have few basic queries, Please have patience and solve my problem.
> 
> 1 Do I need to enable TXDCTL[n] from PF for every queues associated
> with a VF.

No, the VF driver will enable its own TXDCTL.

> 
> 2 What PFVFTE does. Will a VF able to transmit if I enable   PFVFTE
a> from PF  but not TXDCTL[n].

PFVFTE stands for Physical Function Virtual Function Transmit Enable -
the PF must set the TE bit for each VF before that VF can transmit.
The same goes for the PFVFRE bits.  This gives the PF control over
whether any given VF can transmit or receive irrespective of the VF
drivers own transmit and receive configurations.

It is a security and policy control mechanism in the HW.

- Greg

> 
> 
> Thanks,
> Nirmoy Das
> 

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