From patchwork Mon Nov 22 16:37:49 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kai-Heng Feng X-Patchwork-Id: 1558147 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: bilbo.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=canonical.com header.i=@canonical.com header.a=rsa-sha256 header.s=20210705 header.b=Dza5rmNF; dkim-atps=neutral Authentication-Results: ozlabs.org; spf=none (no SPF record) smtp.mailfrom=lists.ubuntu.com (client-ip=91.189.94.19; helo=huckleberry.canonical.com; envelope-from=kernel-team-bounces@lists.ubuntu.com; receiver=) Received: from huckleberry.canonical.com (huckleberry.canonical.com [91.189.94.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by bilbo.ozlabs.org (Postfix) with ESMTPS id 4HyXyt5WQlz9t0G for ; Tue, 23 Nov 2021 03:38:46 +1100 (AEDT) Received: from localhost ([127.0.0.1] helo=huckleberry.canonical.com) by huckleberry.canonical.com with esmtp (Exim 4.86_2) (envelope-from ) id 1mpCKz-0001Ss-Sb; Mon, 22 Nov 2021 16:38:37 +0000 Received: from smtp-relay-canonical-1.internal ([10.131.114.174] helo=smtp-relay-canonical-1.canonical.com) by huckleberry.canonical.com with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.86_2) (envelope-from ) id 1mpCKy-0001Sl-Qg for kernel-team@lists.ubuntu.com; Mon, 22 Nov 2021 16:38:36 +0000 Received: from localhost.localdomain (unknown [10.101.196.174]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by smtp-relay-canonical-1.canonical.com (Postfix) with ESMTPSA id CE0533F1CB for ; Mon, 22 Nov 2021 16:38:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=canonical.com; s=20210705; t=1637599116; bh=ZCbKnzNFmeWrMGiIwGKelLflKTPZyNAfSMVzIUDvqCA=; h=From:To:Subject:Date:Message-Id:MIME-Version; b=Dza5rmNFxJHXF65+EFHKg+OxXJCi2KnFilD0ddJi7LlcMHplDFkWt+lAYhwScwQKO IzuuK6Febchic7n+vMOW+bQ5XXMcJkMflopg1C1UNc5Ukic53f2z1yn0Jmtk0WvjAz ssu/ngiowjwrx7IHVFrjtlfh6KRN3pvdZpyqyFBSj/wchZGs0/8L2xIsiezyKg/zTw fTCJnvRMG1AxytJwkpNDpxtK0Az2LwD1cUbf5SRsw0TeOlq6J7LUga+wvRpuhYihEN 2KTK0Re7dO0BeJzLBJXUVLhyvaP001hmq1ROKG/+StYm/A1Co9G6mRHUluW2zARE7r hYG/nB0DWRfdA== From: Kai-Heng Feng To: kernel-team@lists.ubuntu.com Subject: [SRU] [I/Unstable/OEM-5.13/OEM-5.14] [PATCH 0/3] Fix non-working e1000e device after resume Date: Tue, 23 Nov 2021 00:37:49 +0800 Message-Id: <20211122163752.878330-1-kai.heng.feng@canonical.com> X-Mailer: git-send-email 2.32.0 MIME-Version: 1.0 X-BeenThere: kernel-team@lists.ubuntu.com X-Mailman-Version: 2.1.20 Precedence: list List-Id: Kernel team discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: kernel-team-bounces@lists.ubuntu.com Sender: "kernel-team" BugLink: https://bugs.launchpad.net/bugs/1951861 [Impact] e1000e devices stop working after s2idle resume. [Fix] Revert the offending patch series, which is to bring some minor power saving. [Test] Vendor did extensive tests and didn't find any regression, and the power consumption remains the same. [Where problems could occur] Maybe on some system the series can save some energy, so reverting will cause some power consumption increase. Kai-Heng Feng (3): Revert "e1000e: Additional PHY power saving in S0ix" Revert "e1000e: Add polling mechanism to indicate CSME DPG exit" Revert "e1000e: Add handshake with the CSME to support S0ix" drivers/net/ethernet/intel/e1000e/ich8lan.h | 3 - drivers/net/ethernet/intel/e1000e/netdev.c | 358 +++++++++----------- drivers/net/ethernet/intel/e1000e/regs.h | 1 - 3 files changed, 154 insertions(+), 208 deletions(-) Acked-by: Stefan Bader Acked-by: Kleber Sacilotto de Souza