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 3225A4617B; Mon, 3 Feb 2025 05:06:41 +0100 (CET) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id BE7A04060F; Mon, 3 Feb 2025 05:06:40 +0100 (CET) Received: from inbox.dpdk.org (inbox.dpdk.org [95.142.172.178]) by mails.dpdk.org (Postfix) with ESMTP id A0476400EF for ; Mon, 3 Feb 2025 05:06:39 +0100 (CET) Received: by inbox.dpdk.org (Postfix, from userid 33) id 93A284617C; Mon, 3 Feb 2025 05:06:39 +0100 (CET) From: bugzilla@dpdk.org To: dev@dpdk.org Subject: [DPDK/other Bug 1649] igb_uio legacy mode can not be used in X710/XL710/XXV710 Date: Mon, 03 Feb 2025 04:06:39 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: DPDK X-Bugzilla-Component: other X-Bugzilla-Version: unspecified X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: nandinipersad361@gmail.com 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=17385555990.Bbff36dB6.2155555 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 --17385555990.Bbff36dB6.2155555 Date: Mon, 3 Feb 2025 05:06:39 +0100 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=3D1649 Bug ID: 1649 Summary: igb_uio legacy mode can not be used in X710/XL710/XXV710 Product: DPDK Version: unspecified Hardware: All OS: All Status: UNCONFIRMED Severity: normal Priority: Normal Component: other Assignee: dev@dpdk.org Reporter: nandinipersad361@gmail.com Target Milestone: --- X710/XL710/XXV710 NICs lack support for indicating INTx is asserted via the interrupt bit in the PCI status register. Linux deleted them from INTx supp= ort table. The related commit. Implication: When insmod igb_uio with intr_mode=3Dlegacy and test link status interrupt.= Since INTx interrupt is not supported by X710/XL710/XXV710, it will cause Input/Output error when reading file descriptor. Resolution/Workaround: Do not bind igb_uio with legacy mode in X710/XL710/XXV710 NICs, or do not u= se kernel version >4.7 when you bind igb_uio with legacy mode. Affected Environment/Platform: ALL. Driver/Module: Poll Mode Driver (PMD). --=20 You are receiving this mail because: You are the assignee for the bug.= --17385555990.Bbff36dB6.2155555 Date: Mon, 3 Feb 2025 05:06:39 +0100 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	1649
Summary	igb_uio legacy mode can not be used in X710/XL710/XXV710
Product	DPDK
Version	unspecified
Hardware	All
OS	All
Status	UNCONFIRMED
Severity	normal
Priority	Normal
Component	other
Assignee	dev@dpdk.org
Reporter	nandinipersad361@gmail.com
Target Milestone	---

X710/XL710/XXV710 NICs lack suppor=
t for indicating INTx is asserted via the
interrupt bit in the PCI status register. Linux deleted them from INTx supp=
ort
table. The related commit.

Implication:
When insmod igb_uio with intr_mode=3Dlegacy and test link status interrupt.=
 Since
INTx interrupt is not supported by X710/XL710/XXV710, it will cause
Input/Output error when reading file descriptor.

Resolution/Workaround:
Do not bind igb_uio with legacy mode in X710/XL710/XXV710 NICs, or do not u=
se
kernel version >4.7 when you bind igb_uio with legacy mode.

Affected Environment/Platform:
ALL.

Driver/Module:
Poll Mode Driver (PMD).

You are receiving this mail because:

You are the assignee for the bug.

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

= --17385555990.Bbff36dB6.2155555--