netdev - Re: [v2 2/3] samples: pktgen: add helper functions for IP(v4/v6) CIDR parsing

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Message-ID: <CAEKGpzhz2jDdO2W7kaZxKQ-3Dkpvu5=DB=JumfcfxM-Hr7Fp0w@mail.gmail.com>
Date:   Fri, 13 Sep 2019 02:53:26 +0900
From:   "Daniel T. Lee" <danieltimlee@...il.com>
To:     Jesper Dangaard Brouer <brouer@...hat.com>
Cc:     "David S . Miller" <davem@...emloft.net>,
        netdev <netdev@...r.kernel.org>
Subject: Re: [v2 2/3] samples: pktgen: add helper functions for IP(v4/v6) CIDR parsing

On Fri, Sep 13, 2019 at 12:59 AM Jesper Dangaard Brouer
<brouer@...hat.com> wrote:
>
> On Thu, 12 Sep 2019 03:48:06 +0900
> "Daniel T. Lee" <danieltimlee@...il.com> wrote:
>
> > This commit adds CIDR parsing and IP validate helper function to parse
> > single IP or range of IP with CIDR. (e.g. 198.18.0.0/15)
>
> One question: You do know that this expansion of the CIDR will also
> include the CIDR network broadcast IP and "network-address", is that
> intentional?
>

Correct.

What I was trying to do with this script is,
I want to test RSS/RPS and it does not
really matters whether it is broadcast or network address,
since the n-tuple hashing doesn't matter whether which kind of it.

> --
> Best regards,
>   Jesper Dangaard Brouer
>   MSc.CS, Principal Kernel Engineer at Red Hat
>   LinkedIn: http://www.linkedin.com/in/brouer