Re: [dpdk-users] Reg PMD & NIC

[raman geetha gopalakrishnan <glowingsun@gmail.com>]

Hi Nikhil,

Can i say that NIC's are not standardized to work in same way, rather PCI
to discover its capabilities are standardized?

Thanks
Raman

On Wed, Mar 8, 2017 at 12:41 PM, Nikhil Nanal <nanal@usc.edu> wrote:

> Hi,
>
> I guess DPDK works only for Intel NICs. Also, there are a variety of NIC
> cards from Intel.
> The drivers are generally specific to a NIC card or a family of NIC cards.
> The DPDK, replaces the existing NIC drivers with its PMD drivers, , but
> these PMDs are
> only compatible with some specified class of Intel NIC cards and so there
> are only some supported NICs but not all.
>
> thanks
> Nikhil
>
> > On Mar 7, 2017, at 11:05 PM, raman geetha gopalakrishnan <
> glowingsun@gmail.com> wrote:
> >
> > Hi All,
> >
> > I have the following basic question. Hope to get an answer / link where i
> > can get myself clear.
> >
> > 1. In DPDK PMD is optimized driver for an given NIC to get maximum
> > performance.
> >    That being the case why we are talking about DPDK supported NICs.
> >
> >     A) My assumption is that NIC interface is standardized so that PMD
> > should actually work with any NIC (barring some NIC specific performance
> > tweaks)
> >          is that correct?
> >
> >     B) if #A is correct , how can i make changes to PMD to support any
> NIC
> > ?
> >
> >
> > Thanks
> > Raman
>
>