linux-kernel - Re: [linux-nics] [PATCHv4 net] i40e: Implement ndo_gso

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Date:	Fri, 26 Dec 2014 18:58:32 -0500
From:	Jesse Gross <jesse@...ira.com>
To:	Jeff Kirsher <jeffrey.t.kirsher@...el.com>
Cc:	Joe Stringer <joestringer@...ira.com>,
	netdev <netdev@...r.kernel.org>,
	"linux.nics" <linux.nics@...el.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Tom Herbert <therbert@...gle.com>
Subject: Re: [linux-nics] [PATCHv4 net] i40e: Implement ndo_gso_check()

On Fri, Dec 5, 2014 at 2:12 PM, Jeff Kirsher
<jeffrey.t.kirsher@...el.com> wrote:
> On Fri, 2014-12-05 at 10:41 -0800, Joe Stringer wrote:
>> ndo_gso_check() was recently introduced to allow NICs to report the
>> offloading support that they have on a per-skb basis. Add an
>> implementation for this driver which checks for IPIP, GRE, UDP
>> tunnels.
>>
>> Signed-off-by: Joe Stringer <joestringer@...ira.com>
>> ---
>> v4: Simplify the check to just do tunnel header length.
>>     Fix #define style issue.
>> v3: Drop IPIP and GRE (no driver support even though hw supports it).
>>     Check for UDP outer protocol for UDP tunnels.
>> v2: Expand to include IP in IP and IPv4/IPv6 inside GRE/UDP tunnels.
>>     Add MAX_INNER_LENGTH (as 80).
>> ---
>>  drivers/net/ethernet/intel/i40e/i40e_main.c |   12 ++++++++++++
>>  1 file changed, 12 insertions(+)
>
> Thanks Joe, I will update the patch in my queue with your latest
> version.

Jeff, as a heads-up, this patch and the corresponding one for fm10k
will no longer apply now that the ndo has changed. This was changed by
5f35227e ("net: Generalize ndo_gso_check to ndo_features_check"). The
update needed is trivial and is just due to the change in the function
signature but I'm not sure where you are in the testing process with
this.
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