netdev - Re: [PATCH net-next v3 00/26] switchdev: spring cleanup

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Date:	Thu, 2 Apr 2015 10:15:03 +0200
From:	Jiri Pirko <jiri@...nulli.us>
To:	sfeldma@...il.com
Cc:	netdev@...r.kernel.org, roopa@...ulusnetworks.com,
	linux@...ck-us.net, f.fainelli@...il.com,
	sridhar.samudrala@...el.com, ronen.arad@...el.com
Subject: Re: [PATCH net-next v3 00/26] switchdev: spring cleanup

Thu, Apr 02, 2015 at 10:09:46AM CEST, sfeldma@...il.com wrote:
>From: Scott Feldman <sfeldma@...il.com>
>
>v3:
>
>Move to two-phase prepare-commit transaction model for attr set and obj add.
>Driver gets a change in prepare phase to NACK transaction if lack of resources
>or support in device.

Scott, please avoid the rename for now. Thanks.

>
>v2:
>
>Address review comments:
>
> - [Jiri] squash a few related patches
> - [Roopa] don't remove NETIF_F_HW_SWITCH_OFFLOAD
> - [Roopa] address VLAN setlink/dellink
> - [Ronen] print warning is attr set revert fails
>
>Not address:
>
> - Using something other than "swdev_" prefix
> - Vendor extentions
>
>The patch set grew a bit to not only support port attr get/set but also add
>support for port obj add/del.  Example of port objs are VLAN, FDB entries, and
>FIB entries.  The VLAN support now allows the swdev driver to get VLAN ranges
>and flags like PVID and "untagged".  Sridhar will be adding FDB obj support
>in follow-on patch.
>
>
>v1:
>
>The main theme of this patch set is to cleanup swdev in preparation for
>new features or fixes to be added soon.  We have a pretty good idea now how
>to handle stacked drivers in swdev, but there where some loose ends.  For
>example, if a set failed in the middle of walking the lower devs, we would
>leave the system in an undefined state...there was no way to recover back to
>the previous state.  Speaking of sets, also recognize a pattern that most
>swdev API accesses are gets or sets of port attributes, so go ahead and make
>port attr get/set the central swdev API, and convert everything that is
>set-ish/get-ish to this new API.
>
>Features/fixes that should follow from this cleanup:
>
> - solve the duplicate pkt forwarding issue
> - get/set bridge attrs, like ageing_time, from/to device
> - get/set more bridge port attrs from/to device
>
>There are some rename cleanups tagging along at the end, to give swdev
>consistent naming.
>
>And finally, some much needed updates to the switchdev.txt documentation to
>hopefully capture the state-of-the-art of swdev.  Hopefully, we can do a better
>job keeping this document up-to-date.
>
>Tested with rocker, of course, to make sure nothing functional broke.  There
>are a couple minor tweaks to DSA code for getting switch ID and setting STP
>updates to use new API, but not expecting amy breakage there.
>
>
>Scott Feldman (26):
>  switchdev: introduce get/set attrs ops
>  switchdev: convert parent_id_get to swdev attr get
>  switchdev: convert STP update to swdev attr set
>  switchdev: add bridge port flags attr
>  rocker: use swdev get/set attr for bridge port flags
>  switchdev: introduce swdev add/del obj ops
>  switchdev: add port vlan obj
>  rocker: use swdev add/del obj for bridge port vlans
>  switchdev: add new swdev bridge setlink
>  rocker: cut over to new swdev_port_bridge_setlink
>  bonding: cut over to new swdev_port_bridge_setlink
>  team: cut over to new swdev_port_bridge_setlink
>  switchdev: remove old netdev_switch_port_bridge_setlink
>  switchdev: add new swdev_port_bridge_dellink
>  rocker: cut over to new swdev_port_bridge_dellink
>  bonding: cut over to new swdev_port_bridge_dellink
>  team: cut over to new swdev_port_bridge_dellink
>  switchdev: remove unused netdev_switch_port_bridge_dellink
>  switchdev: add new swdev_port_bridge_getlink
>  rocker: cut over to new swdev_port_bridge_getlink
>  bonding: cut over to new swdev_port_bridge_getlink
>  team: cut over to new swdev_port_bridge_getlink
>  switchdev: rename netdev_switch_fib_* to swdev_fib_*
>  switchdev: rename netdev_switch_notifier_* to swdev_notifier_*
>  switchdev: convert swdev_fib_ipv4_add/del over to
>    swdev_port_obj_add/del
>  switchdev: bring documentation up-to-date
>
> Documentation/networking/switchdev.txt |  420 +++++++++++++++++++----
> drivers/net/bonding/bond_main.c        |    5 +-
> drivers/net/ethernet/rocker/rocker.c   |  227 +++++++-----
> drivers/net/team/team.c                |    5 +-
> include/net/switchdev.h                |  194 +++++++----
> net/bridge/br.c                        |   22 +-
> net/bridge/br_netlink.c                |   24 +-
> net/bridge/br_stp.c                    |    6 +-
> net/core/net-sysfs.c                   |   10 +-
> net/core/rtnetlink.c                   |    9 +-
> net/dsa/slave.c                        |   38 ++-
> net/ipv4/fib_trie.c                    |   38 +--
> net/switchdev/switchdev.c              |  587 ++++++++++++++++++++++++--------
> 13 files changed, 1150 insertions(+), 435 deletions(-)
>
>-- 
>1.7.10.4
>
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