netdev - Re: [PATCH net-next] cxgb4: handle 4-tuple PEDIT to NAT mode translation

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Date:   Wed, 14 Oct 2020 18:24:59 -0700
From:   Jakub Kicinski <kuba@...nel.org>
To:     Herat Ramani <herat@...lsio.com>
Cc:     netdev@...r.kernel.org, davem@...emloft.net, rahul@...lsio.com,
        dt@...lsio.com
Subject: Re: [PATCH net-next] cxgb4: handle 4-tuple PEDIT to NAT mode
 translation

On Tue, 13 Oct 2020 15:01:29 +0530 Herat Ramani wrote:
> The 4-tuple NAT offload via PEDIT always overwrites all the 4-tuple
> fields even if they had not been explicitly enabled. If any fields in
> the 4-tuple are not enabled, then the hardware overwrites the
> disabled fields with zeros, instead of ignoring them.
> 
> So, add a parser that can translate the enabled 4-tuple PEDIT fields
> to one of the NAT mode combinations supported by the hardware and
> hence avoid overwriting disabled fields to 0. Any rule with
> unsupported NAT mode combination is rejected.
> 
> Signed-off-by: Herat Ramani <herat@...lsio.com>

Looks good, applied, but to net. 

Not rejecting unsupported configurations is a bug.

Unless you tell me otherwise I'll also queue this for stable.

Thanks!