netdev - Re: [PATCH net-next v3 0/4] switchdev: push bridge ageing

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Message-Id: <20151012.052047.1656215111847287382.davem@davemloft.net>
Date:	Mon, 12 Oct 2015 05:20:47 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	sfeldma@...il.com
Cc:	netdev@...r.kernel.org, jiri@...nulli.us,
	siva.mannem.lnx@...il.com, pjonnala@...adcom.com,
	stephen@...workplumber.org, roopa@...ulusnetworks.com,
	andrew@...n.ch, f.fainelli@...il.com,
	vivien.didelot@...oirfairelinux.com
Subject: Re: [PATCH net-next v3 0/4] switchdev: push bridge ageing_time
 attribute down

From: sfeldma@...il.com
Date: Thu,  8 Oct 2015 19:23:16 -0700

> From: Scott Feldman <sfeldma@...il.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.
> 
> v2->v3: Per Jiri review: push only ageing_time attr down at this time, and
> don't pass raw bridge IFLA_BR_* values; rather use new switchdev attr ID for
> ageing_time.
> 
> v1->v2: rebase w/ net-next

Series applied, thanks.
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