From: Andrew Lunn <andrew@lunn.ch>
To: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Cc: Florian Fainelli <f.fainelli@gmail.com>,
Vladimir Oltean <olteanv@gmail.com>,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v3 2/3] net: dsa: use NET_NAME_PREDICTABLE for user ports with name given in DT
Date: Wed, 16 Nov 2022 14:41:34 +0100 [thread overview]
Message-ID: <Y3TojrwSOlDxl3Gc@lunn.ch> (raw)
In-Reply-To: <20221116105205.1127843-3-linux@rasmusvillemoes.dk>
On Wed, Nov 16, 2022 at 11:52:03AM +0100, Rasmus Villemoes wrote:
> When a user port has a label in device tree, the corresponding
> netdevice is, to quote include/uapi/linux/netdevice.h, "predictably
> named by the kernel". This is also explicitly one of the intended use
> cases for NET_NAME_PREDICTABLE, quoting 685343fc3ba6 ("net: add
> name_assign_type netdev attribute"):
>
> NET_NAME_PREDICTABLE:
> The ifname has been assigned by the kernel in a predictable way
> [...] Examples include [...] and names deduced from hardware
> properties (including being given explicitly by the firmware).
>
> Expose that information properly for the benefit of userspace tools
> that make decisions based on the name_assign_type attribute,
> e.g. a systemd-udev rule with "kernel" in NamePolicy.
>
> Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Andrew
next prev parent reply other threads:[~2022-11-16 13:42 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-11 16:17 [PATCH] net: dsa: use NET_NAME_PREDICTABLE for user ports with name given in DT Rasmus Villemoes
2022-11-11 17:10 ` Andrew Lunn
2022-11-13 20:03 ` Rasmus Villemoes
2022-11-15 2:17 ` Jakub Kicinski
2022-11-15 15:02 ` Andrew Lunn
2022-11-15 7:43 ` [PATCH v2] net: dsa: use more appropriate NET_NAME_* constants for user ports Rasmus Villemoes
2022-11-15 16:38 ` Jakub Kicinski
2022-11-15 18:55 ` Rasmus Villemoes
2022-11-16 1:59 ` Jakub Kicinski
2022-11-16 10:52 ` [PATCH v3 0/3] " Rasmus Villemoes
2022-11-16 10:52 ` [PATCH v3 1/3] net: dsa: refactor name assignment " Rasmus Villemoes
2022-11-16 13:40 ` Andrew Lunn
2022-11-16 16:22 ` Florian Fainelli
2022-11-16 10:52 ` [PATCH v3 2/3] net: dsa: use NET_NAME_PREDICTABLE for user ports with name given in DT Rasmus Villemoes
2022-11-16 13:41 ` Andrew Lunn [this message]
2022-11-16 16:22 ` Florian Fainelli
2022-11-16 10:52 ` [PATCH v3 3/3] net: dsa: set name_assign_type to NET_NAME_ENUM for enumerated user ports Rasmus Villemoes
2022-11-16 13:42 ` Andrew Lunn
2022-11-16 16:23 ` Florian Fainelli
2022-11-18 4:50 ` [PATCH v3 0/3] net: dsa: use more appropriate NET_NAME_* constants for " patchwork-bot+netdevbpf
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