netdev - Re: [PATCH net-next v3 af-packet 1/2] Enhance af-packet to provide (near zero)lossless packet capture functionality.

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Message-ID: <CAAsGZS5b9X5HW=_JjfahbXpi9f4H5iYGeY9-+wBjP+=c-MDj4w@mail.gmail.com>
Date:	Mon, 18 Jul 2011 08:49:30 -0400
From:	chetan loke <loke.chetan@...il.com>
To:	Eric Dumazet <eric.dumazet@...il.com>
Cc:	davem@...emloft.net, netdev@...r.kernel.org
Subject: Re: [PATCH net-next v3 af-packet 1/2] Enhance af-packet to provide
 (near zero)lossless packet capture functionality.

On Mon, Jul 18, 2011 at 2:38 AM, Eric Dumazet <eric.dumazet@...il.com> wrote:
> Le dimanche 17 juillet 2011 à 23:26 -0400, Chetan Loke a écrit :
>> Signed-off-by: Chetan Loke <loke.chetan@...il.com>
>> ---
>>  include/linux/if_packet.h |  125 +++++++++++++++++++++++++++++++++++++++++++++
>>  1 files changed, 125 insertions(+), 0 deletions(-)
>
>>
>> +struct tpacket3_hdr {
>> +     __u32           tp_status;
>> +     __u32           tp_next_offset;
>> +     __u32           tp_len;
>> +     __u32           tp_snaplen;
>> +     __u16           tp_mac;
>> +     __u16           tp_net;
>> +     __u32           tp_sec;
>> +     __u32           tp_nsec;
>> +     __u32           tp_rxhash;
>> +     __u16           tp_vlan_tci;
>> +     __u16           tp_padding;
>> +     __u32           tp_next_offset;
>> +};
>
> Srange, I see tp_next_offset twice in tpacket3_hdr ?

Sorry, I was trying some last minute fancy prefetch changes. So I
bubbled up the field on my test box but somehow missed the cleanup on
the dev-box.
Will wait for a day to gather some more comments and then re-send the patch.

Chetan Loke
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