netdev - Re: [PATCH net-next 3/3] xfrm: Add ESN support for IPSec HW offload

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Date:   Fri, 1 Dec 2017 11:23:18 -0800
From:   Shannon Nelson <shannon.nelson@...cle.com>
To:     Steffen Klassert <steffen.klassert@...unet.com>,
        yossefe@...lanox.com
Cc:     "David S. Miller" <davem@...emloft.net>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        borisp@...lanox.com, kliteyn@...lanox.com, yossiku@...lanox.com
Subject: Re: [PATCH net-next 3/3] xfrm: Add ESN support for IPSec HW offload

On 11/30/2017 10:23 PM, Steffen Klassert wrote:
> On Tue, Nov 28, 2017 at 11:49:30AM +0200, yossefe@...lanox.com wrote:
>> From: Yossef Efraim <yossefe@...lanox.com>
>>
>> This patch adds ESN support to IPsec device offload.
>> Adding new xfrm device operation to synchronize device ESN.
>>
>> Signed-off-by: Yossef Efraim <yossefe@...lanox.com>
>> ---
>>   include/linux/netdevice.h |  1 +
>>   include/net/xfrm.h        | 12 ++++++++++++
>>   net/xfrm/xfrm_device.c    |  4 ++--
>>   net/xfrm/xfrm_replay.c    |  2 ++
>>   4 files changed, 17 insertions(+), 2 deletions(-)
>>
>> diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
>> index 7de7656..d4e9198 100644
>> --- a/include/linux/netdevice.h
>> +++ b/include/linux/netdevice.h
>> @@ -825,6 +825,7 @@ struct xfrmdev_ops {
>>   	void	(*xdo_dev_state_free) (struct xfrm_state *x);
>>   	bool	(*xdo_dev_offload_ok) (struct sk_buff *skb,
>>   				       struct xfrm_state *x);
>> +	void	(*xdo_dev_state_advance_esn) (struct xfrm_state *x);
> 
> We now have a documentation for the xfrm offloadin API in the
> ipsec-next tree. Please document the new device operation
> there and resubmit.

Please be sure to specify what the offloading driver is expected to do 
with this.

sln

> 
> Thanks!
>