netdev - Re: [patch net-next 3/6] mlxsw: spectrum_router: Use FIB notifications instead of switchdev calls

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Message-ID: <5206ebd6-89c1-ec44-8b98-c5109ebe6140@cumulusnetworks.com>
Date:   Thu, 22 Sep 2016 08:58:20 -0600
From:   David Ahern <dsa@...ulusnetworks.com>
To:     Jiri Pirko <jiri@...nulli.us>, netdev@...r.kernel.org
Cc:     davem@...emloft.net, idosch@...lanox.com, eladr@...lanox.com,
        yotamg@...lanox.com, nogahf@...lanox.com, ogerlitz@...lanox.com,
        roopa@...ulusnetworks.com, nikolay@...ulusnetworks.com,
        linville@...driver.com, andy@...yhouse.net, f.fainelli@...il.com,
        jhs@...atatu.com, vivien.didelot@...oirfairelinux.com,
        andrew@...n.ch, ivecera@...hat.com, kaber@...sh.net,
        john@...ozen.org
Subject: Re: [patch net-next 3/6] mlxsw: spectrum_router: Use FIB
 notifications instead of switchdev calls

On 9/21/16 5:53 AM, Jiri Pirko wrote:
> From: Jiri Pirko <jiri@...lanox.com>
> 
> Until now, in order to offload a FIB entry to HW we use switchdev op.
> However that has limits. Mainly in case we need to make the HW aware of
> all route prefixes configured in kernel. HW needs to know those in order
> to properly trap appropriate packets and pass the to kernel to do
> the forwarding. Abort mechanism is now handled within the mlxsw driver.
> 
> Signed-off-by: Jiri Pirko <jiri@...lanox.com>
> ---
>  drivers/net/ethernet/mellanox/mlxsw/spectrum.h     |   9 +-
>  .../net/ethernet/mellanox/mlxsw/spectrum_router.c  | 386 ++++++++++++---------
>  .../ethernet/mellanox/mlxsw/spectrum_switchdev.c   |   9 -
>  3 files changed, 216 insertions(+), 188 deletions(-)
> 
> 


Make the move to fib notifiers and the removal of switchdev code separate patches. It will make the fib notifier change easier to follow.