linux-kernel - Re: [PATCH net-next v3 3/6] net: dcb: add new rewrite table

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Message-ID: <87a62e98vp.fsf@nvidia.com>
Date:   Thu, 19 Jan 2023 09:59:37 +0100
From:   Petr Machata <petrm@...dia.com>
To:     Daniel Machon <daniel.machon@...rochip.com>
CC:     <netdev@...r.kernel.org>, <davem@...emloft.net>,
        <edumazet@...gle.com>, <kuba@...nel.org>, <pabeni@...hat.com>,
        <lars.povlsen@...rochip.com>, <Steen.Hegelund@...rochip.com>,
        <UNGLinuxDriver@...rochip.com>, <joe@...ches.com>,
        <error27@...il.com>, <horatiu.vultur@...rochip.com>,
        <Julia.Lawall@...ia.fr>, <petrm@...dia.com>,
        <vladimir.oltean@....com>, <maxime.chevallier@...tlin.com>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH net-next v3 3/6] net: dcb: add new rewrite table


Daniel Machon <daniel.machon@...rochip.com> writes:

> Add new rewrite table and all the required functions, offload hooks and
> bookkeeping for maintaining it. The rewrite table reuses the app struct,
> and the entire set of app selectors. As such, some bookeeping code can
> be shared between the rewrite- and the APP table.
>
> New functions for getting, setting and deleting entries has been added.
> Apart from operating on the rewrite list, these functions do not emit a
> DCB_APP_EVENT when the list os modified. The new dcb_getrewr does a
> lookup based on selector and priority and returns the protocol, so that
> mappings from priority to protocol, for a given selector and ifindex is
> obtained.
>
> Also, a new nested attribute has been added, that encapsulates one or
> more app structs. This attribute is used to distinguish the two tables.
>
> The dcb_lock used for the APP table is reused for the rewrite table.
>
> Signed-off-by: Daniel Machon <daniel.machon@...rochip.com>

Reviewed-by: Petr Machata <petrm@...dia.com>