netdev - Re: [PATCH net-next] net: Reflect RX hash for transmit

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Message-ID: <CA+mtBx-Mp5k4TmoDK29ui=jB79drq-K-vhPqK3GgFNoqA2Mifg@mail.gmail.com>
Date:	Sun, 15 Feb 2015 12:19:34 -0800
From:	Tom Herbert <therbert@...gle.com>
To:	Daniel Borkmann <daniel@...earbox.net>
Cc:	David Miller <davem@...emloft.net>,
	Linux Netdev List <netdev@...r.kernel.org>
Subject: Re: [PATCH net-next] net: Reflect RX hash for transmit

On Sun, Feb 15, 2015 at 11:59 AM, Daniel Borkmann <daniel@...earbox.net> wrote:
> On 02/15/2015 07:37 PM, Tom Herbert wrote:
>>
>> This patch allows a driver to request that the receive hash it provides
>> to the stack is reflected back in skb->hash for packets transmitted
>> on the associated connection.
>
> [...]
>>
>> +       if (unlikely(skb->reflect_hash && sk->sk_txhash != skb->hash))
>> +               sk->sk_txhash = skb->hash;
>
>
> Is there also an initial user setting this somewhere?

inet_set_txhash and ip6_set_txhash are called for connected sockets.
There is no user API to set these.

Tom
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