netdev - Re: [PATCH next v4 4/6] bonding: Allow userspace to set actors' system

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Date:	Wed, 18 Feb 2015 13:50:35 +0100
From:	Nikolay Aleksandrov <nikolay@...hat.com>
To:	Mahesh Bandewar <maheshb@...gle.com>,
	Jay Vosburgh <j.vosburgh@...il.com>,
	Andy Gospodarek <andy@...yhouse.net>,
	Veaceslav Falico <vfalico@...il.com>,
	David Miller <davem@...emloft.net>
CC:	Maciej Zenczykowski <maze@...gle.com>,
	netdev <netdev@...r.kernel.org>,
	Eric Dumazet <edumazet@...gle.com>
Subject: Re: [PATCH next v4 4/6] bonding: Allow userspace to set actors' system_priority
 in AD system

On 02/18/2015 08:17 AM, Mahesh Bandewar wrote:
> This patch allows user to randomize the system-priority in an ad-system.
> The allowed range is 1 - 0xFFFF while default value is 0xFFFF. If user
> does not specify this value, the system defaults to 0xFFFF, which is
> what it was before this patch.
> 
> Following example code could set the value -
>     # modprobe bonding mode=4
>     # sys_prio=$(( 1 + RANDOM + RANDOM ))
>     # echo $sys_prio > /sys/class/net/bond0/bonding/ad_actor_sys_prio
>     # echo +eth1 > /sys/class/net/bond0/bonding/slaves
>     ...
>     # ip link set bond0 up
> 
> Signed-off-by: Mahesh Bandewar <maheshb@...gle.com>
> ---
> v1:
>   Initial version
> v2:
>   Rename ad_actor_system_priority to ad_actor_sys_prio
> v3-v4:
>   Rebase
> 
>  Documentation/networking/bonding.txt |  9 +++++++++
>  drivers/net/bonding/bond_3ad.c       |  5 ++++-
>  drivers/net/bonding/bond_main.c      | 14 ++++++++++++++
>  drivers/net/bonding/bond_options.c   | 29 ++++++++++++++++++++++++++++-
>  drivers/net/bonding/bond_procfs.c    |  2 ++
>  drivers/net/bonding/bond_sysfs.c     | 15 +++++++++++++++
>  include/net/bond_options.h           |  1 +
>  include/net/bonding.h                |  1 +
>  8 files changed, 74 insertions(+), 2 deletions(-)
> 
> diff --git a/Documentation/networking/bonding.txt b/Documentation/networking/bonding.txt
> index 83bf4986baea..f19d888651b8 100644
> --- a/Documentation/networking/bonding.txt
> +++ b/Documentation/networking/bonding.txt
> @@ -178,6 +178,15 @@ active_slave
>  	active slave, or the empty string if there is no active slave or
>  	the current mode does not use an active slave.
>  
> +ad_actor_sys_prio
> +
> +	In an AD system, this specifies the system priority. The allowed range
> +	is 1 - 65535. If the value is not specified, it takes 65535 as the
> +	default value.
> +
> +	This paramter has effect only in 802.3ad mode and is available through
^^^^^^^^^^^^^^^^^^^^^
s/paramter/parameter/

> +	SysFs interface.
> +

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