From: Heung Sik Choi <hschoi@os.korea.ac.kr>
To: Vladimir Medvedkin <medvedkinv@gmail.com>, users@dpdk.org
Subject: Re: [dpdk-users] does the 'rte_softrss_be' function match NIC RSS value well? please help me.
Date: Tue, 30 May 2017 18:15:05 +0900 [thread overview]
Message-ID: <CAAZV7DCmTF==YGdQ9eqSaFa8=z640G+Q5rgFVN-Do+fw73_POw@mail.gmail.com> (raw)
In-Reply-To: <CANDrEH=_0sEektpdR0mk7bo5sZtrPkGb1qPg3SeJMjp3Ujn-Hg@mail.gmail.com>
Thanks to reply Vladimir.
I does not custom configure ixgbe, thus default compile and load.
My calculation softrss code is below:
uint8_t rss_key_be[RTE_DIM(default_rss_key)];
uint8_t default_rss_key[] = {
0x6d, 0x5a, 0x56, 0xda, 0x25, 0x5b, 0x0e, 0xc2,
0x41, 0x67, 0x25, 0x3d, 0x43, 0xa3, 0x8f, 0xb0,
0xd0, 0xca, 0x2b, 0xcb, 0xae, 0x7b, 0x30, 0xb4,
0x77, 0xcb, 0x2d, 0xa3, 0x80, 0x30, 0xf2, 0x0c,
0x6a, 0x42, 0xb7, 0x3b, 0xbe, 0xac, 0x01, 0xfa
};
rte_convert_rss_key((uint32_t *)&default_rss_key,(uint32_t *)rss_key_be,
RTE_DIM(default_rss_key));
rte_softrss_be((uint32_t *)&tuple, RTE_THASH_V4_L4_LEN, rss_key_be);//
print it.
i used rte convert_rss_key's implementation code which be base in X86.
i also change the RTE_THASH_V4_L4_LEN parameter with RTE_THASH_V4_L3_LEN.
but doesn't match.
Is it wrong to use it that way?
please help me.
2017-05-30 17:01 GMT+09:00 Vladimir Medvedkin <medvedkinv@gmail.com>:
> Hi,
>
> How do you configure your NIC and calculate softrss?
>
>
> 2017-05-30 10:47 GMT+03:00 Heung Sik Choi <hschoi@os.korea.ac.kr>:
>
>> Hi
>>
>> I want to match NIC RSS value with toeplitz hash function value. And I
>> find
>> out 'rte_softrss_be' can makes it.
>>
>> However, when I experiment it, It doesn't match well. (print two value on
>> terminal through code level)
>> I use the environment below:
>>
>> CPU: xeon 2213 v2 *2 (NUMA)
>> NIC: intel 82599ES
>> kernel 3.16.4
>> ixgbe driver: 3.22
>> DPDK 16.11
>>
>> Please let me know if you have any insights.
>>
>
>
>
> --
> Regards,
> Vladimir
>
next prev parent reply other threads:[~2017-05-30 9:15 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-30 7:47 Heung Sik Choi
2017-05-30 8:01 ` Vladimir Medvedkin
2017-05-30 9:15 ` Heung Sik Choi [this message]
2017-05-30 10:01 ` Vladimir Medvedkin
2017-05-30 10:28 ` Heung Sik Choi
2017-05-30 13:00 ` Vladimir Medvedkin
2017-06-07 5:55 ` Heung Sik Choi
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