在 2022/10/27 19:02, Ye, MingjinX 写道:
Hi lihuisong,

This means that queue offloads need to update by recalling dev_configure
and setup target queues.
Why not update queue offloads in PMD?
Can you tell me, where is the limitation?
According to other Rx/Tx offload configurations, this may not be a limitation.
But it seems to create a dependency on user usage.

Port VLAN releated offloads are set by ethdev ops. There is no requirement
in ehedev layer that this port needs to stopped when set these offloads.
Now it depends on user does recall dev_configure and setup queues to update
queue offloads because of setting these offloads.

Thanks,
Mingjin

-----Original Message-----
From: lihuisong (C) <lihuis...@huawei.com>
Sent: 2022年10月26日 17:53
To: Ye, MingjinX <mingjinx...@intel.com>; dev@dpdk.org
Cc: sta...@dpdk.org; Zhou, YidingX <yidingx.z...@intel.com>; Singh, Aman
Deep <aman.deep.si...@intel.com>; Zhang, Yuying
<yuying.zh...@intel.com>
Subject: Re: [PATCH v4 1/2] app/testpmd: fix vlan offload of rxq


在 2022/10/27 1:10, Mingjin Ye 写道:
After setting vlan offload in testpmd, the result is not updated to
rxq. Therefore, the queue needs to be reconfigured after executing the
"vlan offload" related commands.

Fixes: a47aa8b97afe ("app/testpmd: add vlan offload support")
Cc: sta...@dpdk.org

Signed-off-by: Mingjin Ye <mingjinx...@intel.com>
---
   app/test-pmd/cmdline.c | 1 +
   1 file changed, 1 insertion(+)

diff --git a/app/test-pmd/cmdline.c b/app/test-pmd/cmdline.c index
17be2de402..ce125f549f 100644
--- a/app/test-pmd/cmdline.c
+++ b/app/test-pmd/cmdline.c
@@ -4133,6 +4133,7 @@ cmd_vlan_offload_parsed(void *parsed_result,
        else
                vlan_extend_set(port_id, on);

+       cmd_reconfig_device_queue(port_id, 1, 1);
In addition, I have some comments:
1) Normally, the parsed function of testpmd command needed to re-config port and
queue needs to check if port status is STOPED. Why don't you add this check?
If the check is not exist, queue offloads are not updated until the next port
stop/start command is executed. Right?

2) Why is the queue-based VLAN offload API not used?
   Like, rte_eth_dev_set_vlan_strip_on_queue. It seems that this kind of API is
   dedicated to do this.
This means that queue offloads need to upadte by re-calling dev_configure
and setup all queues, right?
If it is, this adds a usage limitation.
        return;
   }

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