From: Nicolas Dichtel <nicolas.dichtel@6wind.com>
To: Cpp Code <cpp.code.lv@gmail.com>
Cc: netdev@vger.kernel.org, pshelar@ovn.org,
"David S. Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>, ovs dev <dev@openvswitch.org>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH net-next v5] net: openvswitch: IPv6: Add IPv6 extension header support
Date: Tue, 28 Sep 2021 16:51:40 +0200 [thread overview]
Message-ID: <e4bb09d1-8c8f-bfdf-1582-9dd8c560411b@6wind.com> (raw)
In-Reply-To: <CAASuNyUWoZ1wToEUYbdehux=yVnWQ=suKDyRkQfRD-72DOLziw@mail.gmail.com>
Le 27/09/2021 à 21:12, Cpp Code a écrit :
> To use this code there is a part of code in the userspace. We want to
> keep compatibility when we only update userspace part code or only
> kernel part code. This means we should have same values for constants
> and we can only add new ones at the end of list.
All attributes after OVS_KEY_ATTR_CT_STATE (ie 7 attributes) were added before
OVS_KEY_ATTR_TUNNEL_INFO.
Why is it not possible anymore?
Regards,
Nicolas
>
> Best,
> Tom
>
> On Wed, Sep 22, 2021 at 11:02 PM Nicolas Dichtel
> <nicolas.dichtel@6wind.com> wrote:
>>
>> Le 20/09/2021 à 20:20, Toms Atteka a écrit :
>>> This change adds a new OpenFlow field OFPXMT_OFB_IPV6_EXTHDR and
>>> packets can be filtered using ipv6_ext flag.
>>>
>>> Signed-off-by: Toms Atteka <cpp.code.lv@gmail.com>
>>> ---
>>> include/uapi/linux/openvswitch.h | 12 +++
>>> net/openvswitch/flow.c | 140 +++++++++++++++++++++++++++++++
>>> net/openvswitch/flow.h | 14 ++++
>>> net/openvswitch/flow_netlink.c | 24 +++++-
>>> 4 files changed, 189 insertions(+), 1 deletion(-)
>>>
>>> diff --git a/include/uapi/linux/openvswitch.h b/include/uapi/linux/openvswitch.h
>>> index a87b44cd5590..dc6eb5f6399f 100644
>>> --- a/include/uapi/linux/openvswitch.h
>>> +++ b/include/uapi/linux/openvswitch.h
>>> @@ -346,6 +346,13 @@ enum ovs_key_attr {
>>> #ifdef __KERNEL__
>>> OVS_KEY_ATTR_TUNNEL_INFO, /* struct ip_tunnel_info */
>>> #endif
>>> +
>>> +#ifndef __KERNEL__
>>> + PADDING, /* Padding so kernel and non kernel field count would match */
>>> +#endif
>>> +
>>> + OVS_KEY_ATTR_IPV6_EXTHDRS, /* struct ovs_key_ipv6_exthdr */
>> Naive question, why not moving OVS_KEY_ATTR_IPV6_EXTHDRS above
>> OVS_KEY_ATTR_TUNNEL_INFO?
>>
>>
>>
>> Regards,
>> Nicolas
next prev parent reply other threads:[~2021-09-28 14:51 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-20 18:20 [PATCH net-next v5] net: openvswitch: IPv6: Add IPv6 extension header support Toms Atteka
2021-09-21 17:15 ` Jakub Kicinski
2021-09-23 6:02 ` Nicolas Dichtel
2021-09-27 19:12 ` Cpp Code
2021-09-28 14:51 ` Nicolas Dichtel [this message]
2021-09-28 19:20 ` Cpp Code
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