From: Ferruh Yigit <ferruh.yigit@amd.com>
To: Jie Hai <haijie1@huawei.com>,
Aman Singh <aman.deep.singh@intel.com>,
Yuying Zhang <yuying.zhang@intel.com>,
Anatoly Burakov <anatoly.burakov@intel.com>,
Dmitry Kozlyuk <dmitry.kozliuk@gmail.com>,
Matan Azrad <matan@nvidia.com>
Cc: dev@dpdk.org, liudongdong3@huawei.com
Subject: Re: [PATCH v3] app/test-pmd: fix not polling all queues without deferred starting
Date: Tue, 6 Jun 2023 15:45:57 +0100 [thread overview]
Message-ID: <0d06a197-0df4-b4f4-1b1e-98419269d6bb@amd.com> (raw)
In-Reply-To: <20230529022649.51425-1-haijie1@huawei.com>
On 5/29/2023 3:26 AM, Jie Hai wrote:
>
> Each stream has a read-only "disabled" field that control if this
> stream should be used to forward. This field depends on states
> of Rx/Tx queues, please see
> commit 3c4426db54fc ("app/testpmd: do not poll stopped queues").
>
> Currently, the testpmd and DPDK frameworks maintain queue state
> separately. That of the primary process of testpmd are set by
> deferred_start in the queue configuration. And that of the
> framework(dev->data->rx_queue_state or dev->data->tx_queue_state)
> is set when the driver enables/disables the queue, and it is
> shared between the primary/secondary process.
>
> If the deferred_start is set, the queue is disabled and the
> corresponding queue state in the framework changes to stopped.
> However, the queue state in the framework does not only come from
> this. If the primary/secondary process stops a queue, the related
> queue state will change, too. However, the primary process of
> testpmd does not know the change brought by this operation.
> Therefore, setting the queue state in the primary testpmd by only
> the deferred_start is unsafe.
>
> For example, Rx/Tx queues who are stopped before the operations of
> stopping and starting port cannot forward packets after these
> operations on primary process.
>
> Therefore, the primary process should getting the queue state from
> of the framework as the secondary process does, please see commit
> e065c9aa3e05 ("app/testpmd: fix secondary process packet forwarding").
>
> Fixes: 3c4426db54fc ("app/testpmd: do not poll stopped queues")
> Cc: stable@dpdk.org
>
> Signed-off-by: Jie Hai <haijie1@huawei.com>
> ---
> v1->v2:
> 1. Fix misspelled word 'deferred'.
> 2. Fix incorrect format of reference to commits.
>
> v2->v3
> 1. Fix incorrect format of reference to commits.
Hi Jie,
Problem is not clear for me.
Can you please describe more what is not working?
next prev parent reply other threads:[~2023-06-06 14:46 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-06 9:26 [PATCH] app/test-pmd: fix not polling all queues without defered starting Jie Hai
2023-05-08 3:10 ` [PATCH v2] app/test-pmd: fix not polling all queues without deferred starting Jie Hai
2023-05-29 2:26 ` [PATCH v3] " Jie Hai
2023-06-06 14:45 ` Ferruh Yigit [this message]
2023-06-07 7:04 ` Jie Hai
2023-06-07 17:38 ` Ferruh Yigit
2023-06-07 18:12 ` Ferruh Yigit
2023-06-09 8:54 ` Jie Hai
2023-06-09 9:03 ` [PATCH v4] app/testpmd: fix primary process not polling all queues Jie Hai
2023-06-09 11:10 ` Ferruh Yigit
2023-06-20 10:07 ` Jie Hai
2023-06-20 10:57 ` Ferruh Yigit
2023-06-20 17:05 ` Ferruh Yigit
2023-06-22 16:40 ` Ali Alnubani
2023-06-26 9:30 ` Jie Hai
2023-06-27 11:05 ` Ferruh Yigit
2023-07-03 13:40 ` Ali Alnubani
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