netdev - Re: [PATCH net-next v2 9/9] nfp: add control message passing capabilities to flower offloads

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Message-ID: <CAJ3xEMhETYdrLaOFaGwGS9P+M+ZSa6h0pCXWx_fop-7+xzf2Zg@mail.gmail.com>
Date:   Thu, 29 Jun 2017 18:59:22 +0300
From:   Or Gerlitz <gerlitz.or@...il.com>
To:     Simon Horman <simon.horman@...ronome.com>
Cc:     David Miller <davem@...emloft.net>,
        Jakub Kicinski <jakub.kicinski@...ronome.com>,
        Linux Netdev List <netdev@...r.kernel.org>,
        oss-drivers@...ronome.com,
        Pieter Jansen van Vuuren 
        <pieter.jansenvanvuuren@...ronome.com>
Subject: Re: [PATCH net-next v2 9/9] nfp: add control message passing
 capabilities to flower offloads

On Thu, Jun 29, 2017 at 6:30 PM, Simon Horman
<simon.horman@...ronome.com> wrote:
> On Thu, Jun 29, 2017 at 06:21:53PM +0300, Or Gerlitz wrote:
>> On Wed, Jun 28, 2017 at 11:30 PM, Simon Horman
>> <simon.horman@...ronome.com> wrote:
>> > +++ b/drivers/net/ethernet/netronome/nfp/flower/cmsg.h
>> > @@ -245,7 +245,11 @@ struct nfp_flower_cmsg_hdr {
>> >
>> >  /* Types defined for port related control messages  */
>> >  enum nfp_flower_cmsg_type_port {
>> > +       NFP_FLOWER_CMSG_TYPE_FLOW_ADD =         0,
>> > +       NFP_FLOWER_CMSG_TYPE_FLOW_MOD =         1,
>>
>> AFAIU flower offload will always use delete and add and not modify,
>> if you think otherwise, would love to hear that. Didn't see you are using
>> the MOD define in the code anywhere.
>
> The firmware API has a mod operation but you are correct that
> we are not implementing that operation in this patch-set.

that wasn't my comment. I said that AFAIU flower will never ask you to
modify, they
will ask to delete and later add, so I would be happy to know if you
see it differently.