netdev - RE: [Intel-wired-lan] [PATCH iwl-next v4 06/13] ice: Implement basic eswitch bridge setup

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <PH0PR11MB5013314B6B561E5FD04D85619653A@PH0PR11MB5013.namprd11.prod.outlook.com>
Date: Wed, 7 Jun 2023 06:03:53 +0000
From: "Buvaneswaran, Sujai" <sujai.buvaneswaran@...el.com>
To: "Drewek, Wojciech" <wojciech.drewek@...el.com>,
	"intel-wired-lan@...ts.osuosl.org" <intel-wired-lan@...ts.osuosl.org>
CC: "pmenzel@...gen.mpg.de" <pmenzel@...gen.mpg.de>, "netdev@...r.kernel.org"
	<netdev@...r.kernel.org>, "simon.horman@...igine.com"
	<simon.horman@...igine.com>, "dan.carpenter@...aro.org"
	<dan.carpenter@...aro.org>
Subject: RE: [Intel-wired-lan] [PATCH iwl-next v4 06/13] ice: Implement basic
 eswitch bridge setup

> -----Original Message-----
> From: Intel-wired-lan <intel-wired-lan-bounces@...osl.org> On Behalf Of
> Wojciech Drewek
> Sent: Wednesday, May 24, 2023 5:51 PM
> To: intel-wired-lan@...ts.osuosl.org
> Cc: pmenzel@...gen.mpg.de; netdev@...r.kernel.org;
> simon.horman@...igine.com; dan.carpenter@...aro.org
> Subject: [Intel-wired-lan] [PATCH iwl-next v4 06/13] ice: Implement basic
> eswitch bridge setup
> 
> With this patch, ice driver is able to track if the port representors or uplink
> port were added to the linux bridge in switchdev mode. Listen for
> NETDEV_CHANGEUPPER events in order to detect this. ice_esw_br data
> structure reflects the linux bridge and stores all the ports of the bridge
> (ice_esw_br_port) in xarray, it's created when the first port is added to the
> bridge and freed once the last port is removed. Note that only one bridge is
> supported per eswitch.
> 
> Bridge port (ice_esw_br_port) can be either a VF port representor port or
> uplink port (ice_esw_br_port_type). In both cases bridge port holds a
> reference to the VSI, VF's VSI in case of the PR and uplink VSI in case of the
> uplink. VSI's index is used as an index to the xarray in which ports are stored.
> 
> Add a check which prevents configuring switchdev mode if uplink is already
> added to any bridge. This is needed because we need to listen for
> NETDEV_CHANGEUPPER events to record if the uplink was added to the
> bridge. Netdevice notifier is registered after eswitch mode is changed top
> switchdev.
> 
> Signed-off-by: Wojciech Drewek <wojciech.drewek@...el.com>
> ---
> v2: fix structure holes, wrapping improvements
> v4: fix potential Null pointer dereference in
>     ice_eswitch_br_port_unlink
> ---
>  drivers/net/ethernet/intel/ice/Makefile       |   2 +-
>  drivers/net/ethernet/intel/ice/ice.h          |   4 +-
>  drivers/net/ethernet/intel/ice/ice_eswitch.c  |  23 +-
>  .../net/ethernet/intel/ice/ice_eswitch_br.c   | 384 ++++++++++++++++++
>  .../net/ethernet/intel/ice/ice_eswitch_br.h   |  42 ++
>  drivers/net/ethernet/intel/ice/ice_main.c     |   2 +-
>  drivers/net/ethernet/intel/ice/ice_repr.c     |   2 +-
>  drivers/net/ethernet/intel/ice/ice_repr.h     |   3 +-
>  8 files changed, 453 insertions(+), 9 deletions(-)  create mode 100644
> drivers/net/ethernet/intel/ice/ice_eswitch_br.c
>  create mode 100644 drivers/net/ethernet/intel/ice/ice_eswitch_br.h
> 
Tested-by: Sujai Buvaneswaran <sujai.buvaneswaran@...el.com>