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Date:   Wed, 15 Jan 2020 10:34:04 -0700
From:   David Ahern <dsahern@...il.com>
To:     Jiri Pirko <jiri@...nulli.us>,
        Leon Romanovsky <leonro@...lanox.com>
Cc:     Maor Gottlieb <maorg@...lanox.com>,
        "j.vosburgh@...il.com" <j.vosburgh@...il.com>,
        "vfalico@...il.com" <vfalico@...il.com>,
        "andy@...yhouse.net" <andy@...yhouse.net>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        Saeed Mahameed <saeedm@...lanox.com>,
        Jason Gunthorpe <jgg@...lanox.com>,
        Jiri Pirko <jiri@...lanox.com>,
        Alex Rosenbaum <alexr@...lanox.com>,
        "davem@...emloft.net" <davem@...emloft.net>,
        Mark Zhang <markz@...lanox.com>,
        Parav Pandit <parav@...lanox.com>
Subject: Re: Expose bond_xmit_hash function

On 1/15/20 9:48 AM, Jiri Pirko wrote:
>>
>> Right now, we have one of two options:
>> 1. One-to-one copy/paste of that bond_xmit function to RDMA.
>> 2. Add EXPORT_SYMBOL and call from RDMA.
>>
>> Do you have another solution to our undesire to do copy/paste in mind?
> 
> I presented it in this thread.
> 

Something similar is needed for xdp and not necessarily tied to a
specific bond mode. Some time back I was using this as a prototype:

https://github.com/dsahern/linux/commit/2714abc1e629613e3485b7aa860fa3096e273cb2

It is incomplete, but shows the intent - exporting bond_egress_slave for
use by other code to take a bond device and return an egress leg.

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