From: Ido Schimmel <idosch@idosch.org>
To: Vladimir Oltean <vladimir.oltean@nxp.com>
Cc: "netdev@vger.kernel.org" <netdev@vger.kernel.org>,
Jakub Kicinski <kuba@kernel.org>,
"David S. Miller" <davem@davemloft.net>,
Andrew Lunn <andrew@lunn.ch>,
Florian Fainelli <f.fainelli@gmail.com>,
Vivien Didelot <vivien.didelot@gmail.com>,
Jiri Pirko <jiri@resnulli.us>,
Tobias Waldekranz <tobias@waldekranz.com>,
Roopa Prabhu <roopa@nvidia.com>,
Nikolay Aleksandrov <nikolay@nvidia.com>,
Stephen Hemminger <stephen@networkplumber.org>,
"bridge@lists.linux-foundation.org"
<bridge@lists.linux-foundation.org>,
Grygorii Strashko <grygorii.strashko@ti.com>,
Marek Behun <kabel@blackhole.sk>,
DENG Qingfang <dqfext@gmail.com>
Subject: Re: [PATCH v5 net-next 00/10] Let switchdev drivers offload and unoffload bridge ports at their own convenience
Date: Tue, 20 Jul 2021 17:51:24 +0300 [thread overview]
Message-ID: <YPbi7NSsdDEdvmcA@shredder> (raw)
In-Reply-To: <20210720144617.ptqt5mqlw5stidep@skbuf>
On Tue, Jul 20, 2021 at 02:46:18PM +0000, Vladimir Oltean wrote:
> On Tue, Jul 20, 2021 at 05:25:08PM +0300, Ido Schimmel wrote:
> > If you don't want to change the order, then at least make the
> > replay/cleanup optional and set it to 'false' for mlxsw. This should
> > mean that the only change in mlxsw should be adding calls to
> > switchdev_bridge_port_offload() / switchdev_bridge_port_unoffload() in
> > mlxsw_sp_bridge_port_create() / mlxsw_sp_bridge_port_destroy(),
> > respectively.
>
> I mean, I could guard br_{vlan,mdb,fdb}_replay() against NULL notifier
> block pointers, and then make mlxsw pass NULL for both the atomic_nb and
> blocking_nb.
>
> But why? How do you deal with a host-joined mdb that was auto-installed
> while there was no port under the bridge?
mlxsw does not currently support such entries. It's on my TODO list.
When we add support for that, we will also take care of the replay.
> How does anyone deal with that? What's optional about it? Why would
> driver X opt out of it but Y not (apart for the case where driver X
> does not offload MDBs at all, that I can understand).
WARNING: multiple messages have this Message-ID (diff)
From: Ido Schimmel <idosch@idosch.org>
To: Vladimir Oltean <vladimir.oltean@nxp.com>
Cc: Andrew Lunn <andrew@lunn.ch>,
Florian Fainelli <f.fainelli@gmail.com>,
Jiri Pirko <jiri@resnulli.us>,
"netdev@vger.kernel.org" <netdev@vger.kernel.org>,
"bridge@lists.linux-foundation.org"
<bridge@lists.linux-foundation.org>,
Vivien Didelot <vivien.didelot@gmail.com>,
DENG Qingfang <dqfext@gmail.com>,
Grygorii Strashko <grygorii.strashko@ti.com>,
Nikolay Aleksandrov <nikolay@nvidia.com>,
Roopa Prabhu <roopa@nvidia.com>, Jakub Kicinski <kuba@kernel.org>,
Marek Behun <kabel@blackhole.sk>,
"David S. Miller" <davem@davemloft.net>,
Tobias Waldekranz <tobias@waldekranz.com>
Subject: Re: [Bridge] [PATCH v5 net-next 00/10] Let switchdev drivers offload and unoffload bridge ports at their own convenience
Date: Tue, 20 Jul 2021 17:51:24 +0300 [thread overview]
Message-ID: <YPbi7NSsdDEdvmcA@shredder> (raw)
In-Reply-To: <20210720144617.ptqt5mqlw5stidep@skbuf>
On Tue, Jul 20, 2021 at 02:46:18PM +0000, Vladimir Oltean wrote:
> On Tue, Jul 20, 2021 at 05:25:08PM +0300, Ido Schimmel wrote:
> > If you don't want to change the order, then at least make the
> > replay/cleanup optional and set it to 'false' for mlxsw. This should
> > mean that the only change in mlxsw should be adding calls to
> > switchdev_bridge_port_offload() / switchdev_bridge_port_unoffload() in
> > mlxsw_sp_bridge_port_create() / mlxsw_sp_bridge_port_destroy(),
> > respectively.
>
> I mean, I could guard br_{vlan,mdb,fdb}_replay() against NULL notifier
> block pointers, and then make mlxsw pass NULL for both the atomic_nb and
> blocking_nb.
>
> But why? How do you deal with a host-joined mdb that was auto-installed
> while there was no port under the bridge?
mlxsw does not currently support such entries. It's on my TODO list.
When we add support for that, we will also take care of the replay.
> How does anyone deal with that? What's optional about it? Why would
> driver X opt out of it but Y not (apart for the case where driver X
> does not offload MDBs at all, that I can understand).
next prev parent reply other threads:[~2021-07-20 15:13 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-20 13:46 [PATCH v5 net-next 00/10] Let switchdev drivers offload and unoffload bridge ports at their own convenience Vladimir Oltean
2021-07-20 13:46 ` [Bridge] " Vladimir Oltean
2021-07-20 13:46 ` [PATCH v5 net-next 01/10] net: dpaa2-switch: use extack in dpaa2_switch_port_bridge_join Vladimir Oltean
2021-07-20 13:46 ` [Bridge] " Vladimir Oltean
2021-07-20 13:46 ` [PATCH v5 net-next 02/10] net: dpaa2-switch: refactor prechangeupper sanity checks Vladimir Oltean
2021-07-20 13:46 ` [Bridge] " Vladimir Oltean
2021-07-20 13:46 ` [PATCH v5 net-next 03/10] mlxsw: spectrum: " Vladimir Oltean
2021-07-20 13:46 ` [Bridge] " Vladimir Oltean
2021-07-20 13:46 ` [PATCH v5 net-next 04/10] mlxsw: spectrum: refactor leaving an 8021q upper that is a bridge port Vladimir Oltean
2021-07-20 13:46 ` [Bridge] " Vladimir Oltean
2021-07-20 13:46 ` [PATCH v5 net-next 05/10] net: marvell: prestera: refactor prechangeupper sanity checks Vladimir Oltean
2021-07-20 13:46 ` [Bridge] " Vladimir Oltean
2021-07-20 13:46 ` [PATCH v5 net-next 06/10] net: switchdev: guard drivers against multiple obj replays on same bridge port Vladimir Oltean
2021-07-20 13:46 ` [Bridge] " Vladimir Oltean
2021-07-20 13:46 ` [PATCH v5 net-next 07/10] net: bridge: disambiguate offload_fwd_mark Vladimir Oltean
2021-07-20 13:46 ` [Bridge] " Vladimir Oltean
2021-07-20 13:46 ` [PATCH v5 net-next 08/10] net: bridge: switchdev: recycle unused hwdoms Vladimir Oltean
2021-07-20 13:46 ` [Bridge] " Vladimir Oltean
2021-07-20 13:46 ` [PATCH v5 net-next 09/10] net: bridge: switchdev: let drivers inform which bridge ports are offloaded Vladimir Oltean
2021-07-20 13:46 ` [Bridge] " Vladimir Oltean
2021-07-20 13:46 ` [PATCH v5 net-next 10/10] net: bridge: switchdev object replay helpers for everybody Vladimir Oltean
2021-07-20 13:46 ` [Bridge] " Vladimir Oltean
2021-07-20 14:01 ` [PATCH v5 net-next 00/10] Let switchdev drivers offload and unoffload bridge ports at their own convenience Ido Schimmel
2021-07-20 14:01 ` [Bridge] " Ido Schimmel
2021-07-20 14:12 ` Vladimir Oltean
2021-07-20 14:12 ` [Bridge] " Vladimir Oltean
2021-07-20 14:25 ` Ido Schimmel
2021-07-20 14:25 ` [Bridge] " Ido Schimmel
2021-07-20 14:46 ` Vladimir Oltean
2021-07-20 14:46 ` [Bridge] " Vladimir Oltean
2021-07-20 14:51 ` Ido Schimmel [this message]
2021-07-20 14:51 ` Ido Schimmel
2021-07-20 15:36 ` Vladimir Oltean
2021-07-20 15:36 ` [Bridge] " Vladimir Oltean
2021-07-20 19:47 ` Vladimir Oltean
2021-07-20 19:47 ` [Bridge] " Vladimir Oltean
2021-07-21 6:55 ` Ido Schimmel
2021-07-21 6:55 ` [Bridge] " Ido Schimmel
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