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From: Stephen Hemminger <stephen@networkplumber.org>
To: Kumara Parameshwaran <kumaraparamesh92@gmail.com>
Cc: hujiayu.hu@foxmail.com, dev@dpdk.org
Subject: Re: [PATCH] lib/gro: use hash function for flow lookup
Date: Wed, 1 Jan 2025 09:21:38 -0800	[thread overview]
Message-ID: <20250101092138.4fb5fdee@fedora> (raw)
In-Reply-To: <20250101093735.95271-1-kumaraparamesh92@gmail.com>

On Wed,  1 Jan 2025 15:07:35 +0530
Kumara Parameshwaran <kumaraparamesh92@gmail.com> wrote:

> From: Kumara Parameshwaran <kumaraparamesh92@gmail.com>
> To: hujiayu.hu@foxmail.com
> Cc: dev@dpdk.org,  Kumara Parameshwaran <kumaraparamesh92@gmail.com>
> Subject: [PATCH] lib/gro: use hash function for flow lookup
> Date: Wed,  1 Jan 2025 15:07:35 +0530
> X-Mailer: git-send-email 2.47.1
> 
> optimize the GRO lookup using hash based
> implementation
> 
> Signed-off-by: Kumara Parameshwaran <kumaraparamesh92@gmail.com>

Rather than open coding a hash table with collision chains, please use the
existing DPDK cuckoo hash which is faster and you can also prevent hash
DoS chain attacks.


Alternatively, use a better hash function such as siphash which is resistent
to DoS attacks.

  reply	other threads:[~2025-01-01 17:21 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-01-01  9:37 [PATCH] lib/gro: use hash function for flow lookup Kumara Parameshwaran
2025-01-01 17:21 ` Stephen Hemminger [this message]
2025-01-02  3:53   ` kumaraparameshwaran rathinavel
2025-11-10 16:29   ` kumaraparameshwaran rathinavel

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