From: Jakub Kicinski <kuba@kernel.org>
To: Maxime Chevallier <maxime.chevallier@bootlin.com>
Cc: davem@davemloft.net, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org, thomas.petazzoni@bootlin.com,
"Andrew Lunn" <andrew@lunn.ch>,
"Eric Dumazet" <edumazet@google.com>,
"Paolo Abeni" <pabeni@redhat.com>,
"Russell King" <linux@armlinux.org.uk>,
linux-arm-kernel@lists.infradead.org,
"Christophe Leroy" <christophe.leroy@csgroup.eu>,
"Herve Codina" <herve.codina@bootlin.com>,
"Florian Fainelli" <f.fainelli@gmail.com>,
"Heiner Kallweit" <hkallweit1@gmail.com>,
"Vladimir Oltean" <vladimir.oltean@nxp.com>,
"Köry Maincent" <kory.maincent@bootlin.com>,
"Jesse Brandeburg" <jesse.brandeburg@intel.com>,
"Jonathan Corbet" <corbet@lwn.net>,
"Marek Behún" <kabel@kernel.org>,
"Piergiorgio Beruto" <piergiorgio.beruto@gmail.com>,
"Oleksij Rempel" <o.rempel@pengutronix.de>,
"Nicolò Veronese" <nicveronese@gmail.com>,
"Simon Horman" <horms@kernel.org>
Subject: Re: [PATCH net-next v5 01/13] net: phy: Introduce ethernet link topology representation
Date: Fri, 5 Jan 2024 07:34:32 -0800 [thread overview]
Message-ID: <20240105073432.671159e9@kernel.org> (raw)
In-Reply-To: <20240105102918.24398552@device-28.home>
On Fri, 5 Jan 2024 10:29:18 +0100 Maxime Chevallier wrote:
> I'll give it a try, it could be doable to try to keep the index for
> _some_ PHYs. I had a first try at this in the very first iteration, but
> that was lost when converting to xarray for the index management. Since
> the phy_device keeps track of its own index, we can try to re-use it,
> but I can see it becoming difficult if we destroy the topology when all
> PHYs are detached (after ndo_close).
What I was thinking is if phy already has phyindex, and that index is
unused in the xarray of netdev in question - try to use that phyindex
instead of allocating a new one?
IDK if phys can move between netdevs, or get freed/recreated
automatically - otherwise it should work? (If user unbinds and rebinds
the PHY driver for instance that's their fault, we can renumber).
WARNING: multiple messages have this Message-ID (diff)
From: Jakub Kicinski <kuba@kernel.org>
To: Maxime Chevallier <maxime.chevallier@bootlin.com>
Cc: davem@davemloft.net, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org, thomas.petazzoni@bootlin.com,
"Andrew Lunn" <andrew@lunn.ch>,
"Eric Dumazet" <edumazet@google.com>,
"Paolo Abeni" <pabeni@redhat.com>,
"Russell King" <linux@armlinux.org.uk>,
linux-arm-kernel@lists.infradead.org,
"Christophe Leroy" <christophe.leroy@csgroup.eu>,
"Herve Codina" <herve.codina@bootlin.com>,
"Florian Fainelli" <f.fainelli@gmail.com>,
"Heiner Kallweit" <hkallweit1@gmail.com>,
"Vladimir Oltean" <vladimir.oltean@nxp.com>,
"Köry Maincent" <kory.maincent@bootlin.com>,
"Jesse Brandeburg" <jesse.brandeburg@intel.com>,
"Jonathan Corbet" <corbet@lwn.net>,
"Marek Behún" <kabel@kernel.org>,
"Piergiorgio Beruto" <piergiorgio.beruto@gmail.com>,
"Oleksij Rempel" <o.rempel@pengutronix.de>,
"Nicolò Veronese" <nicveronese@gmail.com>,
"Simon Horman" <horms@kernel.org>
Subject: Re: [PATCH net-next v5 01/13] net: phy: Introduce ethernet link topology representation
Date: Fri, 5 Jan 2024 07:34:32 -0800 [thread overview]
Message-ID: <20240105073432.671159e9@kernel.org> (raw)
In-Reply-To: <20240105102918.24398552@device-28.home>
On Fri, 5 Jan 2024 10:29:18 +0100 Maxime Chevallier wrote:
> I'll give it a try, it could be doable to try to keep the index for
> _some_ PHYs. I had a first try at this in the very first iteration, but
> that was lost when converting to xarray for the index management. Since
> the phy_device keeps track of its own index, we can try to re-use it,
> but I can see it becoming difficult if we destroy the topology when all
> PHYs are detached (after ndo_close).
What I was thinking is if phy already has phyindex, and that index is
unused in the xarray of netdev in question - try to use that phyindex
instead of allocating a new one?
IDK if phys can move between netdevs, or get freed/recreated
automatically - otherwise it should work? (If user unbinds and rebinds
the PHY driver for instance that's their fault, we can renumber).
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next prev parent reply other threads:[~2024-01-05 15:34 UTC|newest]
Thread overview: 76+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-12-21 18:00 [PATCH net-next v5 00/13] Introduce PHY listing and link_topology tracking Maxime Chevallier
2023-12-21 18:00 ` Maxime Chevallier
2023-12-21 18:00 ` [PATCH net-next v5 01/13] net: phy: Introduce ethernet link topology representation Maxime Chevallier
2023-12-21 18:00 ` Maxime Chevallier
2024-01-04 23:12 ` Jakub Kicinski
2024-01-04 23:12 ` Jakub Kicinski
2024-01-05 2:21 ` Andrew Lunn
2024-01-05 2:21 ` Andrew Lunn
2024-01-05 9:29 ` Maxime Chevallier
2024-01-05 9:29 ` Maxime Chevallier
2024-01-05 15:34 ` Jakub Kicinski [this message]
2024-01-05 15:34 ` Jakub Kicinski
2023-12-21 18:00 ` [PATCH net-next v5 02/13] net: sfp: pass the phy_device when disconnecting an sfp module's PHY Maxime Chevallier
2023-12-21 18:00 ` Maxime Chevallier
2024-01-03 15:20 ` Russell King (Oracle)
2024-01-03 15:20 ` Russell King (Oracle)
2024-01-03 17:45 ` Maxime Chevallier
2024-01-03 17:45 ` Maxime Chevallier
2023-12-21 18:00 ` [PATCH net-next v5 03/13] net: phy: add helpers to handle sfp phy connect/disconnect Maxime Chevallier
2023-12-21 18:00 ` Maxime Chevallier
2023-12-21 18:00 ` [PATCH net-next v5 04/13] net: sfp: Add helper to return the SFP bus name Maxime Chevallier
2023-12-21 18:00 ` Maxime Chevallier
2023-12-21 18:00 ` [PATCH net-next v5 05/13] net: ethtool: Allow passing a phy index for some commands Maxime Chevallier
2023-12-21 18:00 ` Maxime Chevallier
2024-01-04 23:15 ` Jakub Kicinski
2024-01-04 23:15 ` Jakub Kicinski
2024-01-05 9:30 ` Maxime Chevallier
2024-01-05 9:30 ` Maxime Chevallier
2023-12-21 18:00 ` [PATCH net-next v5 06/13] netlink: specs: add phy-index as a header parameter Maxime Chevallier
2023-12-21 18:00 ` Maxime Chevallier
2023-12-21 18:00 ` [PATCH net-next v5 07/13] net: ethtool: Introduce a command to list PHYs on an interface Maxime Chevallier
2023-12-21 18:00 ` Maxime Chevallier
2024-01-04 23:34 ` Jakub Kicinski
2024-01-04 23:34 ` Jakub Kicinski
2024-01-05 9:43 ` Maxime Chevallier
2024-01-05 9:43 ` Maxime Chevallier
2024-01-05 13:17 ` Andrew Lunn
2024-01-05 13:17 ` Andrew Lunn
2024-01-24 13:50 ` Maxime Chevallier
2024-01-24 13:50 ` Maxime Chevallier
2024-01-24 16:54 ` Andrew Lunn
2024-01-24 16:54 ` Andrew Lunn
2024-01-25 8:22 ` Maxime Chevallier
2024-01-25 8:22 ` Maxime Chevallier
2024-01-25 17:10 ` Andrew Lunn
2024-01-25 17:10 ` Andrew Lunn
2024-01-05 15:39 ` Jakub Kicinski
2024-01-05 15:39 ` Jakub Kicinski
2023-12-21 18:00 ` [PATCH net-next v5 08/13] netlink: specs: add ethnl PHY_GET command set Maxime Chevallier
2023-12-21 18:00 ` Maxime Chevallier
2023-12-21 18:00 ` [PATCH net-next v5 09/13] net: ethtool: plca: Target the command to the requested PHY Maxime Chevallier
2023-12-21 18:00 ` Maxime Chevallier
2023-12-21 18:00 ` [PATCH net-next v5 10/13] net: ethtool: pse-pd: " Maxime Chevallier
2023-12-21 18:00 ` Maxime Chevallier
2023-12-21 18:00 ` [PATCH net-next v5 11/13] net: ethtool: cable-test: " Maxime Chevallier
2023-12-21 18:00 ` Maxime Chevallier
2023-12-21 18:00 ` [PATCH net-next v5 12/13] net: ethtool: strset: Allow querying phy stats by index Maxime Chevallier
2023-12-21 18:00 ` Maxime Chevallier
2023-12-21 18:00 ` [PATCH net-next v5 13/13] Documentation: networking: document phy_link_topology Maxime Chevallier
2023-12-21 18:00 ` Maxime Chevallier
2024-01-01 18:40 ` [PATCH net-next v5 00/13] Introduce PHY listing and link_topology tracking patchwork-bot+netdevbpf
2024-01-01 18:40 ` patchwork-bot+netdevbpf
2024-01-02 11:57 ` Russell King (Oracle)
2024-01-02 11:57 ` Russell King (Oracle)
2024-01-02 18:51 ` Jakub Kicinski
2024-01-02 18:51 ` Jakub Kicinski
2024-01-03 14:33 ` Maxime Chevallier
2024-01-03 14:33 ` Maxime Chevallier
2024-01-04 23:47 ` Jakub Kicinski
2024-01-04 23:47 ` Jakub Kicinski
2024-01-04 23:50 ` Florian Fainelli
2024-01-04 23:50 ` Florian Fainelli
2024-01-05 0:56 ` Jakub Kicinski
2024-01-05 0:56 ` Jakub Kicinski
2024-01-05 9:00 ` Maxime Chevallier
2024-01-05 9:00 ` Maxime Chevallier
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