From: sfel...@gmail.com Date: Thu, 8 Oct 2015 19:23:16 -0700 > 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. > > 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
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