netdev - Re: [RFC net-next 1/4] doc/netlink: Add batch op definitions to netlink-raw schema

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Date: Tue, 27 Feb 2024 08:11:09 -0800
From: Jakub Kicinski <kuba@...nel.org>
To: Donald Hunter <donald.hunter@...il.com>
Cc: netdev@...r.kernel.org, "David S. Miller" <davem@...emloft.net>, Eric
 Dumazet <edumazet@...gle.com>, Paolo Abeni <pabeni@...hat.com>, Jacob
 Keller <jacob.e.keller@...el.com>, Jiri Pirko <jiri@...nulli.us>, Stanislav
 Fomichev <sdf@...gle.com>, donald.hunter@...hat.com
Subject: Re: [RFC net-next 1/4] doc/netlink: Add batch op definitions to
 netlink-raw schema

On Sun, 25 Feb 2024 17:46:16 +0000 Donald Hunter wrote:
> The nftables netlink families use batch operations for create update and
> delete operations. Extend the netlink-raw schema so that operations can
> be marked as batch ops. Add definitions of the begin-batch and end-batch
> messages.
> 
> The begin/end messages themselves are defined as ordinary ops, but there
> are new attributes that describe the op name and parameters for the
> begin/end messages.
> 
> The section of yaml spec that defines the begin/end ops looks like this;
> the newtable op is marked 'is-batch: true' so the message needs to be
> wrapped with 'batch-begin(res-id: 10)' and batch-end(res-id: 10) messages:

I'm not familiar with nftables nl. Can you explain what the batch ops
are for and how they function?

Begin / end makes it sound like some form of a transaction, is it?