From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id A2FC843F61; Wed, 1 May 2024 16:41:05 +0200 (CEST) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 2FD12402A7; Wed, 1 May 2024 16:41:05 +0200 (CEST) Received: from inbox.dpdk.org (inbox.dpdk.org [95.142.172.178]) by mails.dpdk.org (Postfix) with ESMTP id DEDD14021E for ; Wed, 1 May 2024 16:41:03 +0200 (CEST) Received: by inbox.dpdk.org (Postfix, from userid 33) id CAA9643F62; Wed, 1 May 2024 16:41:03 +0200 (CEST) From: bugzilla@dpdk.org To: dev@dpdk.org Subject: [DPDK/ethdev Bug 1430] af_xdp: reset stats has no effect on imissed Date: Wed, 01 May 2024 14:41:03 +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: 24.03 X-Bugzilla-Keywords: X-Bugzilla-Severity: minor X-Bugzilla-Who: stephen@networkplumber.org 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 Message-ID: Content-Type: multipart/alternative; boundary=17145744630.FA6E014CA.2912707 Content-Transfer-Encoding: 7bit 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 List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org --17145744630.FA6E014CA.2912707 Date: Wed, 1 May 2024 16:41:03 +0200 MIME-Version: 1.0 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 https://bugs.dpdk.org/show_bug.cgi?id=3D1430 Bug ID: 1430 Summary: af_xdp: reset stats has no effect on imissed Product: DPDK Version: 24.03 Hardware: All OS: All Status: UNCONFIRMED Severity: minor Priority: Normal Component: ethdev Assignee: dev@dpdk.org Reporter: stephen@networkplumber.org Target Milestone: --- Since the AF_XDP PMD queries the kernel to find the number of missed packet= s, it does not handle the case where stats have been reset. Something like: ... eth_stats_get() =3D stats->imissed was 5 packets eth_stats_reset() eth_stats_get() =3D stats->imissed will still be 5 packets The driver needs to record the count in the reset handler and then offset the read count on the next stats get. --=20 You are receiving this mail because: You are the assignee for the bug.= --17145744630.FA6E014CA.2912707 Date: Wed, 1 May 2024 16:41:03 +0200 MIME-Version: 1.0 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.dpdk.org/ Auto-Submitted: auto-generated X-Auto-Response-Suppress: All

Bug ID	1430
Summary	af_xdp: reset stats has no effect on imissed
Product	DPDK
Version	24.03
Hardware	All
OS	All
Status	UNCONFIRMED
Severity	minor
Priority	Normal
Component	ethdev
Assignee	dev@dpdk.org
Reporter	stephen@networkplumber.org
Target Milestone	---

Since the AF_XDP PMD queries the k=
ernel to find the number of missed packets,
it does not handle the case where stats have been reset.

Something like:
        ...
        eth_stats_get()
              =3D stats->imissed was 5 packets
        eth_stats_reset()
        eth_stats_get()
              =3D stats->imissed will still be 5 packets

The driver needs to record the count in the reset handler and then
offset the read count on the next stats get.

You are receiving this mail because:

You are the assignee for the bug.

=20=20=20=20=20=20=20=20=20=20

= --17145744630.FA6E014CA.2912707--