From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <dev-bounces@dpdk.org>
Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124])
	by inbox.dpdk.org (Postfix) with ESMTP id 038E5A00C2;
	Wed, 12 Oct 2022 08:38:03 +0200 (CEST)
Received: from [217.70.189.124] (localhost [127.0.0.1])
	by mails.dpdk.org (Postfix) with ESMTP id DC1BB42BF0;
	Wed, 12 Oct 2022 08:38:02 +0200 (CEST)
Received: from inbox.dpdk.org (inbox.dpdk.org [95.142.172.178])
 by mails.dpdk.org (Postfix) with ESMTP id 73AC640691
 for <dev@dpdk.org>; Wed, 12 Oct 2022 08:38:01 +0200 (CEST)
Received: by inbox.dpdk.org (Postfix, from userid 33)
 id 643BEA0547; Wed, 12 Oct 2022 08:38:01 +0200 (CEST)
From: bugzilla@dpdk.org
To: dev@dpdk.org
Subject: [Bug 1102] i40e: enabling Rx/Tx queue deferred start has no effect
Date: Wed, 12 Oct 2022 06:38:00 +0000
X-Bugzilla-Reason: AssignedTo
X-Bugzilla-Type: new
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: DPDK
X-Bugzilla-Component: ethdev
X-Bugzilla-Version: unspecified
X-Bugzilla-Keywords: 
X-Bugzilla-Severity: normal
X-Bugzilla-Who: ivan.malov@oktetlabs.ru
X-Bugzilla-Status: UNCONFIRMED
X-Bugzilla-Resolution: 
X-Bugzilla-Priority: Normal
X-Bugzilla-Assigned-To: dev@dpdk.org
X-Bugzilla-Target-Milestone: ---
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: bug_id short_desc product version rep_platform
 op_sys bug_status bug_severity priority component assigned_to reporter
 target_milestone attachments.created
Message-ID: <bug-1102-3@http.bugs.dpdk.org/>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
X-Bugzilla-URL: http://bugs.dpdk.org/
Auto-Submitted: auto-generated
X-Auto-Response-Suppress: All
MIME-Version: 1.0
X-BeenThere: dev@dpdk.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: DPDK patches and discussions <dev.dpdk.org>
List-Unsubscribe: <https://mails.dpdk.org/options/dev>,
 <mailto:dev-request@dpdk.org?subject=unsubscribe>
List-Archive: <http://mails.dpdk.org/archives/dev/>
List-Post: <mailto:dev@dpdk.org>
List-Help: <mailto:dev-request@dpdk.org?subject=help>
List-Subscribe: <https://mails.dpdk.org/listinfo/dev>,
 <mailto:dev-request@dpdk.org?subject=subscribe>
Errors-To: dev-bounces@dpdk.org

https://bugs.dpdk.org/show_bug.cgi?id=3D1102

            Bug ID: 1102
           Summary: i40e: enabling Rx/Tx queue deferred start has no
                    effect
           Product: DPDK
           Version: unspecified
          Hardware: All
                OS: All
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: ethdev
          Assignee: dev@dpdk.org
          Reporter: ivan.malov@oktetlabs.ru
  Target Milestone: ---

Created attachment 223
  --> https://bugs.dpdk.org/attachment.cgi?id=3D223&action=3Dedit
probable fix

As part of the ongoing efforts [1] to bring up sophisticated DPDK PMD testi=
ng,
it was found that i40e had a bug in deferred queue start feature.

Test logs [2] and [3] suggest that the problem manifests itself both in Rx =
and
Tx cases. The target queue marked for deferred start proves active at the p=
oint
where the test has not yet asked to enable it.

Our takeaway from studying i40e code is that the driver does not check whet=
her
a  queue has been marked for deferred start when enabling all queues on port
start. Please find the probable fix attached.

[1] http://mails.dpdk.org/archives/dev/2022-October/251663.html
[2] https://ts-factory.io/bublik/v2/log/100333?focusId=3D101010&mode=3Dtree=
Andlog
[3] https://ts-factory.io/bublik/v2/log/100333?focusId=3D101022&mode=3Dtree=
Andlog

--=20
You are receiving this mail because:
You are the assignee for the bug.=