From: Stephen Hemminger <stephen@networkplumber.org>
To: Robin Jarry <rjarry@redhat.com>
Cc: dev@dpdk.org, Dariusz Sosnowski <dsosnowski@nvidia.com>,
Viacheslav Ovsiienko <viacheslavo@nvidia.com>,
Bing Zhao <bingz@nvidia.com>, Ori Kam <orika@nvidia.com>,
Suanming Mou <suanmingm@nvidia.com>,
Matan Azrad <matan@nvidia.com>
Subject: Re: [PATCH dpdk] net/mlx5: add option to reduce Tx datapath compilation time
Date: Tue, 21 Apr 2026 14:56:54 -0700 [thread overview]
Message-ID: <20260421145654.6ee9715b@phoenix.local> (raw)
In-Reply-To: <20260421212356.573976-1-rjarry@redhat.com>
On Tue, 21 Apr 2026 23:23:55 +0200
Robin Jarry <rjarry@redhat.com> wrote:
> The mlx5 Tx datapath compiles 42 variants of the burst function, each
> a specialization of mlx5_tx_burst_tmpl() with a different combination
> of offload flags. The compiler must instantiate and optimize the entire
> 3800+ line template for every variant, which dominates build time for
> all the code base.
PS: I am going to reject any new drivers that do this kind of nonsense.
The cnxk and mlx5 drivers are setting a bad precedent.
next prev parent reply other threads:[~2026-04-21 21:57 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-04-21 21:23 [PATCH dpdk] net/mlx5: add option to reduce Tx datapath compilation time Robin Jarry
2026-04-21 21:56 ` Stephen Hemminger [this message]
2026-04-22 7:27 ` Bruce Richardson
2026-04-28 15:59 ` Robin Jarry
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