On Thu, Sep 24, 2015 at 2:05 PM, Stephen Hemminger
<step...@networkplumber.org> wrote:
> On Thu, 24 Sep 2015 13:59:26 -0700
> sfel...@gmail.com wrote:
>
>> From: Scott Feldman <sfel...@gmail.com>
>>
>> Push bridge-level attributes down to switchdev drivers.  This patchset
>> adds the infrastructure and then pushes, as an example, ageing_time attribute
>> down from bridge to switchdev (rocker) driver.  Add some range-checking
>> for ageing_time.
>>
>> # ip link set dev br0 type bridge ageing_time 1000
>>
>> # ip link set dev br0 type bridge ageing_time 999
>> RTNETLINK answers: Numerical result out of range
>>
>> Up until now, switchdev attrs where port-level attrs, so the netdev used in
>> switchdev_attr_set() would be a switch port or bond of switch ports.  With
>> bridge-level attrs, the netdev passed to switchdev_attr_set() is the bridge
>> netdev.  The same recusive algo is used to visit the leaves of the stacked
>> drivers to set the attr, it's just in this case we start one layer higher in
>> the stack.  One note is not all ports in the bridge may support setting a
>> bridge-level attribute, so rather than failing the entire set, we'll skip 
>> over
>> those ports returning -EOPNOTSUPP.
>
>
> Rather than having more in bridge, shouldn't this just be a netlink event?

You lost me?  Oh, do you mean netdev notifier?  Jiri (privately) had
suggested that also.
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