Re: [PATCH man-page] packet.7: document PACKET_QDISC_BYPASS

["Michael Kerrisk (man-pages)" <mtk.manpages-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>]

Daniel,

I've applied this patch. I have a question below.

On 12/10/2013 04:31 PM, Daniel Borkmann wrote:
> Add a comment about PACKET_QDISC_BYPASS' socket option to the kernel.
> 
> Signed-off-by: Daniel Borkmann <dborkman-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
> ---
>  Michael, this patch is on top of Willem's resend for packet.7:
>  http://www.spinics.net/lists/linux-man/msg04576.html
> 
>  Kernel part of this man page update:
>  https://git.kernel.org/cgit/linux/kernel/git/davem/net-next.git/commit/?id=d346a3fae3ff1d99f5d0c819bf86edf9094a26a1
> 
>  Thanks!
> 
>  man7/packet.7 | 5 +++++
>  1 file changed, 5 insertions(+)
> 
> diff --git a/man7/packet.7 b/man7/packet.7
> index e0993d2..100f876 100644
> --- a/man7/packet.7
> +++ b/man7/packet.7
> @@ -426,6 +426,11 @@ creates a packet receive ring of variant
>  .BR TPACKET_V1 .
>  To create another variant, configure the desired variant by setting this
>  integer option before creating the ring.
> +.TP
> +.BR PACKET_QDISC_BYPASS " (since Linux 3.14)"
> +By default, packets sent through packet sockets pass through the kernel's
> +qdisc (traffic control) layer. This can be bypassed by setting this integer
> +option to one for usage scenarios similar to pktgen.

This last sentence is a little unclear. Would it be better as:

This can be bypassed by setting this integer
option to one; this is useful for usage scenarios similar to pktgen.

Or something like that. Also, can you elaborate a little on what 
pktgen is please.

Thanks,

Michael


  
>  .SS Ioctls
>  .B SIOCGSTAMP
> 


-- 
Michael Kerrisk
Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/
Linux/UNIX System Programming Training: http://man7.org/training/
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