From: "Burakov, Anatoly" <anatoly.burakov@intel.com>
To: David Marchand <david.marchand@redhat.com>, <dev@dpdk.org>
Cc: thomas@monjalon.net, frode.nordahl@canonical.com,
mattias.ronnblom@ericsson.com, stable@dpdk.org,
"Tyler Retzlaff" <roretzla@linux.microsoft.com>,
"Bruce Richardson" <bruce.richardson@intel.com>,
"Dmitry Kozlyuk" <dmitry.kozliuk@gmail.com>,
"Morten Brørup" <mb@smartsharesystems.com>,
"Konstantin Ananyev" <konstantin.ananyev@huawei.com>,
"Chengwen Feng" <fengchengwen@huawei.com>,
"Stephen Hemminger" <stephen@networkplumber.org>
Subject: Re: [PATCH 1/3] random: defer seeding to EAL init
Date: Mon, 16 Dec 2024 10:38:34 +0100 [thread overview]
Message-ID: <fea11746-a05a-4bd9-9b9b-1a7c4b19ffe4@intel.com> (raw)
In-Reply-To: <20241205175754.1673888-2-david.marchand@redhat.com>
On 12/5/2024 6:57 PM, David Marchand wrote:
> The RNG is documented as being seeded as part of EAL init.
>
> /**
> * Seed the pseudo-random generator.
> *
> * The generator is automatically seeded by the EAL init with a timer
> * value. It may need to be re-seeded by the user with a real random
> * value.
> *
> ...
>
> Move the initialisation (seeding) helper out of a constructor and
> call it explicitly from rte_eal_init() as it was done before commit
> 3f002f069612 ("eal: replace libc-based random generation with LFSR").
>
> This also moves the unconditional lcore variable allocation out of a
> constructor.
>
> While at it, mark local symbol rand_state as static.
>
> Fixes: 29c39cd3d54d ("random: keep PRNG state in lcore variable")
> Cc: stable@dpdk.org
>
> Signed-off-by: David Marchand <david.marchand@redhat.com>
> ---
Acked-by: Anatoly Burakov <anatoly.burakov@intel.com>
--
Thanks,
Anatoly
next prev parent reply other threads:[~2024-12-16 9:38 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-12-05 17:57 [PATCH 0/3] Defer lcore variables allocation David Marchand
2024-12-05 17:57 ` [PATCH 1/3] random: defer seeding to EAL init David Marchand
2024-12-06 11:09 ` Mattias Rönnblom
2024-12-16 9:38 ` Burakov, Anatoly [this message]
2024-12-05 17:57 ` [PATCH 2/3] power: defer lcore variable allocation David Marchand
2024-12-06 11:29 ` Mattias Rönnblom
2024-12-12 7:57 ` David Marchand
2024-12-13 6:58 ` Mattias Rönnblom
2024-12-16 10:02 ` David Marchand
2024-12-05 17:57 ` [PATCH 3/3] eal/x86: defer power intrinsics " David Marchand
2024-12-06 11:32 ` Mattias Rönnblom
2024-12-06 11:01 ` [PATCH 0/3] Defer lcore variables allocation Mattias Rönnblom
2024-12-06 15:55 ` Thomas Monjalon
2024-12-10 17:09 ` Stephen Hemminger
2024-12-09 11:03 ` David Marchand
2024-12-09 15:39 ` Mattias Rönnblom
2024-12-09 17:40 ` David Marchand
2024-12-10 9:41 ` Mattias Rönnblom
2024-12-16 10:01 ` Burakov, Anatoly
2024-12-16 9:42 ` Burakov, Anatoly
2024-12-16 9:49 ` David Marchand
2024-12-17 9:06 ` David Marchand
2024-12-18 20:10 ` Mattias Rönnblom
2024-12-17 8:59 ` [PATCH v2 0/5] " David Marchand
2024-12-17 8:59 ` [PATCH v2 1/5] eal: check lcore variable handle David Marchand
2024-12-18 11:18 ` Burakov, Anatoly
2024-12-17 8:59 ` [PATCH v2 2/5] random: defer seeding to EAL init David Marchand
2024-12-18 16:35 ` Stephen Hemminger
2024-12-18 17:03 ` Mattias Rönnblom
2024-12-17 8:59 ` [PATCH v2 3/5] power: defer lcore variable allocation David Marchand
2024-12-18 11:17 ` Burakov, Anatoly
2024-12-17 8:59 ` [PATCH v2 4/5] power: reduce memory footprint of per-lcore state David Marchand
2024-12-18 11:17 ` Burakov, Anatoly
2024-12-17 8:59 ` [PATCH v2 5/5] eal/x86: defer power intrinsics variable allocation David Marchand
2024-12-18 11:17 ` Burakov, Anatoly
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