Re: [PATCH] lib/gro: use hash function for flow lookup

[kumaraparameshwaran rathinavel <kumaraparamesh92@gmail.com>]

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On Wed, Jan 1, 2025 at 10:51 PM Stephen Hemminger <
stephen@networkplumber.org> wrote:

> 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.
>
>> http://dpdk.org/patch/158636 @Stephen Hemminger
>> <stephen@networkplumber.org>  - Please find the link to the patch. This
>> is sample implementation with test. Please let me know if it looks fine,
>> would add more test cases.
>
>
> Alternatively, use a better hash function such as siphash which is
> resistent
> to DoS attacks.
>

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