netdev - Re: [PATCH v2 iproute2 net-next] erspan: add erspan version II support

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Date:   Fri, 15 Dec 2017 16:55:05 -0800
From:   William Tu <u9012063@...il.com>
To:     Roman Mashak <mrv@...atatu.com>
Cc:     Linux Kernel Network Developers <netdev@...r.kernel.org>
Subject: Re: [PATCH v2 iproute2 net-next] erspan: add erspan version II support

On Fri, Dec 15, 2017 at 3:58 PM, Roman Mashak <mrv@...atatu.com> wrote:
> William Tu <u9012063@...il.com> writes:
>
>> The patch adds support for configuring the erspan v2, for both
>> ipv4 and ipv6 erspan implementation.  Three additional fields
>> are added: 'erspan_ver' for distinguishing v1 or v2, 'erspan_dir'
>> for specifying direction of the mirrored traffic, and 'erspan_hwid'
>> for users to set ERSPAN engine ID within a system.
>>
>> As for manpage, the ERSPAN descriptions used to be under GRE, IPIP,
>> SIT Type paragraph.  Since IP6GRE/IP6GRETAP also supports ERSPAN,
>> the patch removes the old one, creates a separate ERSPAN paragrah,
>> and adds an example.
>>
>> Signed-off-by: William Tu <u9012063@...il.com>
>> ---
>> change in v2:
>>   - clean up and update manpage.
>> ---
>>  include/uapi/linux/if_ether.h  |  1 +
>>  include/uapi/linux/if_tunnel.h |  3 ++
>>  ip/link_gre.c                  | 59 ++++++++++++++++++++++++--
>>  ip/link_gre6.c                 | 61 +++++++++++++++++++++++++--
>>  man/man8/ip-link.8.in          | 94 ++++++++++++++++++++++++++++++++++++------
>>  5 files changed, 199 insertions(+), 19 deletions(-)
>>
>> diff --git a/include/uapi/linux/if_ether.h b/include/uapi/linux/if_ether.h
>> index 2eb529a90250..5fd5c12ef8e9 100644
>> --- a/include/uapi/linux/if_ether.h
>> +++ b/include/uapi/linux/if_ether.h
>> @@ -47,6 +47,7 @@
>>  #define ETH_P_PUP    0x0200          /* Xerox PUP packet             */
>>  #define ETH_P_PUPAT  0x0201          /* Xerox PUP Addr Trans packet  */
>>  #define ETH_P_TSN    0x22F0          /* TSN (IEEE 1722) packet       */
>> +#define ETH_P_ERsPAN2        0x22EB          /* ERSPAN version 2 (type III)  */
>              ^ Is it intention to have a lower case 's' in macro name or typo?
>
> [...]
Sorry, that's my mistake. Let me fix it and resubmit. Thank you.

William