From: oulijun <oulijun@huawei.com>
To: Ferruh Yigit <ferruh.yigit@intel.com>, <wenzhuo.lu@intel.com>,
<beilei.xing@intel.com>, <adrien.mazarguil@6wind.com>,
Phil Yang <Phil.Yang@arm.com>
Cc: <dev@dpdk.org>, <linuxarm@huawei.com>
Subject: Re: [dpdk-dev] [PATCH v4] RSS key use with testpmd
Date: Wed, 14 Oct 2020 14:15:04 +0800 [thread overview]
Message-ID: <a8707581-a681-7a70-cd5d-b163fb8bdc23@huawei.com> (raw)
In-Reply-To: <46956bf5-54ff-c8b6-74de-a6338c6d5d3a@intel.com>
在 2020/10/10 2:52, Ferruh Yigit 写道:
> On 10/9/2020 1:09 PM, oulijun wrote:
>>
>>
>> 在 2020/9/30 21:17, Ferruh Yigit 写道:
>>> On 9/24/2020 2:45 PM, Lijun Ou wrote:
>>>> Consider the follow usage with testpmd:
>>>> 1. first, startup testpmd:
>>>> testpmd> show port 0 rss-hash key
>>>> RSS functions:
>>>> all ipv4-frag ipv4-other ipv6-frag ipv6-other ip
>>>> RSS key:
>>>> 6D5A56DA255B0EC24167253D43A38FB0D0CA2BCBAE7B30B477CB2DA38030F
>>>> 20C6A42B73BBEAC01FA
>>>> 2. create a rss rule
>>>> testpmd> flow create 0 ingress pattern eth / ipv4 / udp / end
>>>> actions rss \
>>>> types ipv4-udp end queues end / end
>>>>
>>>> 3. show rss-hash key
>>>> testpmd> show port 0 rss-hash key
>>>> RSS functions:
>>>> all ipv4-udp udp
>>>> RSS key:
>>>> 74657374706D6427732064656661756C74205253532068617368206B65792C206F
>>>> 76657272696465
>>>>
>>>> As a result, the step 3 with RSS key and the step 1 RSS key
>>>> is not the same. The patch[1] to solve the above problems.
>>>>
>>>
>>> This is interesting, can you please provide above information in the
>>> commit log too?
>>>
>> Yes, I submitted detailed operation information in patch v3 as a
>> commit, and Yang suggested that the operation information be included
>> in the cover letter.
> >
>
> OK, understood.
> Only, commands helped me to understand the problem, it is easy to grasp
> the issue with samples, so I thought it may help others later in if it
> is in the commit log, since cover letter won't be visible in the git repo.
>
> @Phil, will you be OK to have them in the commit log if the checkpatch
> warnings fixed?
>
>>> Also can you please provide the details on why this happens,
>>> callstack can help?
>>>
>> When you start the testpmd, the pmd driver initializes the RSS
>> configuration. Generally, the recommended RSS hash key is used as the
>> default key in the driver. In addition, the default key is different
>> from the default RSS flow in testpmd without specifying RSS hash key.
>> So, if you do not specify the RSS key when creating an RSS rule, the
>> testpmd uses the default key as the default RSS key of the RSS rule.As
>> a result, you may mistakenly consider that the RSS key in use is the
>> valid default key of the NIC, actually, the key and the valid default
>> key of the NIC are two values.
>
> Above description looks good, can you include this to the commit log
> please?
>
Hi,Ferruh
Your opinion is to put the following comit log in app/testpmd: fix
the default RSS key configuration?
Consider the follow usage with testpmd:
1. first, startup testpmd:
testpmd> show port 0 rss-hash key
RSS functions:
all ipv4-frag ipv4-other ipv6-frag ipv6-other ip
RSS key:
6D5A56DA255B0EC24167253D43A38FB0D0CA2BCBAE7B30B477CB2DA38030F
20C6A42B73BBEAC01FA
2. create a rss rule
testpmd> flow create 0 ingress pattern eth / ipv4 / udp / end actions rss \
types ipv4-udp end queues end / end
3. show rss-hash key
testpmd> show port 0 rss-hash key
RSS functions:
all ipv4-udp udp
RSS key:
74657374706D6427732064656661756C74205253532068617368206B65792C206F
76657272696465
>>> Thanks,
>>> ferruh
>>>
>>>
>>>> Lijun Ou (1):
>>>> app/testpmd: fix the default RSS key configuration
>>>>
>>>> app/test-pmd/cmdline_flow.c | 8 ++++++++
>>>> 1 file changed, 8 insertions(+)
>>>>
>>>
>>> .
>>>
>
> .
>
next prev parent reply other threads:[~2020-10-14 6:18 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-10 1:51 [dpdk-dev] [PATCH v3] app/testpmd: fix the default RSS key configuration Lijun Ou
2020-09-22 9:51 ` Phil Yang
2020-09-22 13:50 ` oulijun
2020-09-22 15:44 ` Phil Yang
2020-09-24 13:45 ` [dpdk-dev] [PATCH v4] RSS key use with testpmd Lijun Ou
2020-09-24 13:45 ` [dpdk-dev] [PATCH v4] app/testpmd: fix the default RSS key configuration Lijun Ou
2020-09-29 15:35 ` Phil Yang
2020-09-30 12:57 ` Ferruh Yigit
2020-10-09 11:55 ` oulijun
2020-10-09 18:27 ` Ferruh Yigit
2020-10-09 18:54 ` Ferruh Yigit
2020-09-30 13:36 ` Ferruh Yigit
2020-10-09 11:59 ` oulijun
2020-10-09 18:36 ` Ferruh Yigit
2020-10-15 12:41 ` [dpdk-dev] [PATCH v5] " Lijun Ou
2020-10-15 13:52 ` Ferruh Yigit
2020-10-15 14:04 ` oulijun
2020-10-15 14:43 ` Ferruh Yigit
2020-10-15 16:05 ` Ferruh Yigit
2020-10-15 23:21 ` Ophir Munk
2020-10-15 23:53 ` Ferruh Yigit
2020-10-16 0:14 ` Ajit Khaparde
2020-10-16 6:46 ` Ophir Munk
2020-10-16 10:05 ` oulijun
2020-10-16 15:13 ` Ophir Munk
2020-10-16 10:04 ` oulijun
2020-10-16 10:57 ` Ferruh Yigit
2020-10-16 14:59 ` Ophir Munk
2020-10-20 9:00 ` oulijun
2020-10-20 10:02 ` Ferruh Yigit
2020-10-20 13:35 ` oulijun
2020-10-20 14:34 ` Ferruh Yigit
2020-10-21 8:19 ` oulijun
2020-10-21 9:38 ` Ferruh Yigit
2020-10-21 10:07 ` oulijun
[not found] ` <20201015195637.26476-1-robot@bytheb.org>
2020-10-16 9:39 ` [dpdk-dev] |WARNING| pw80899 " oulijun
2020-10-16 9:41 ` David Marchand
2020-09-30 13:17 ` [dpdk-dev] [PATCH v4] RSS key use with testpmd Ferruh Yigit
2020-10-09 12:09 ` oulijun
2020-10-09 18:52 ` Ferruh Yigit
2020-10-10 3:07 ` Phil Yang
2020-10-14 6:15 ` oulijun [this message]
2020-10-14 8:41 ` Ferruh Yigit
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