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{ "id": 2180422, "url": "http://patchwork.ozlabs.org/api/covers/2180422/?format=api", "web_url": "http://patchwork.ozlabs.org/project/intel-wired-lan/cover/20260106141420.1585948-1-vitaly.lifshits@intel.com/", "project": { "id": 46, "url": "http://patchwork.ozlabs.org/api/projects/46/?format=api", "name": "Intel Wired Ethernet development", "link_name": "intel-wired-lan", "list_id": "intel-wired-lan.osuosl.org", "list_email": "intel-wired-lan@osuosl.org", "web_url": "", "scm_url": "", "webscm_url": "", "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260106141420.1585948-1-vitaly.lifshits@intel.com>", "list_archive_url": null, "date": "2026-01-06T14:14:18", "name": "[iwl-net,v2,0/2] e1000e: avoid unexpected autonomous power-gating on Panther Lake devices", "submitter": { "id": 76816, "url": "http://patchwork.ozlabs.org/api/people/76816/?format=api", "name": "Lifshits, Vitaly", "email": "vitaly.lifshits@intel.com" }, "mbox": "http://patchwork.ozlabs.org/project/intel-wired-lan/cover/20260106141420.1585948-1-vitaly.lifshits@intel.com/mbox/", "series": [ { "id": 487342, "url": "http://patchwork.ozlabs.org/api/series/487342/?format=api", "web_url": "http://patchwork.ozlabs.org/project/intel-wired-lan/list/?series=487342", "date": "2026-01-06T14:14:18", "name": "e1000e: avoid unexpected autonomous power-gating on Panther Lake devices", "version": 2, "mbox": "http://patchwork.ozlabs.org/series/487342/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/covers/2180422/comments/", "headers": { "Return-Path": "<intel-wired-lan-bounces@osuosl.org>", "X-Original-To": [ "incoming@patchwork.ozlabs.org", "intel-wired-lan@lists.osuosl.org" ], "Delivered-To": [ "patchwork-incoming@legolas.ozlabs.org", "intel-wired-lan@lists.osuosl.org" ], "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=osuosl.org header.i=@osuosl.org header.a=rsa-sha256\n header.s=default header.b=YObXKbDB;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=osuosl.org\n (client-ip=140.211.166.138; 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envelope-from=intel-wired-lan-bounces@osuosl.org;\n receiver=<UNKNOWN> ", "DKIM-Filter": [ "OpenDKIM Filter v2.11.0 smtp1.osuosl.org 3A47A8112F", "OpenDKIM Filter v2.11.0 smtp4.osuosl.org 2877C4088D" ], "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed; d=osuosl.org;\n\ts=default; t=1767708868;\n\tbh=xFG3BJ624usPSGnivONLo04Z0mjEw/zmioXcunXNnJ0=;\n\th=From:To:Cc:Date:Subject:List-Id:List-Unsubscribe:List-Archive:\n\t List-Post:List-Help:List-Subscribe:From;\n\tb=YObXKbDBxBwA4+5b6s1T1KPwWD2iy8WD2YBF7YaFejceTofnNdfWAqFyV8FTJYBot\n\t ELA9p7n8NtvmzMYlLI10X5BeJuQfwQ5MKtd30ehSH5DznBLpIWd1fsFcTmpySgPvma\n\t NPUkWZspUHnTCzE8mFX+fKmL3fXuvpFOFFeQmvrVkVQ1Hnx/WGzwONP7TzIWgKEHQ9\n\t lZwaYP0qo/I10qt/+Son4kZZ6LHdn4866G6cqHmVxrnh7bj7NENRFXgJFGh21vYw4y\n\t HZ29t0t9q6Y31VOqpv9AYY9kYzinmgBbWEKyzk4PiBVo0SORwmHtjAr87/UPuPlMMi\n\t G442Vwn3iqlGg==", "Received-SPF": "Pass (mailfrom) identity=mailfrom; client-ip=198.175.65.10;\n helo=mgamail.intel.com; envelope-from=vitaly.lifshits@intel.com;\n receiver=<UNKNOWN>", "DMARC-Filter": "OpenDMARC Filter v1.4.2 smtp4.osuosl.org 2877C4088D", "X-CSE-ConnectionGUID": [ "xqPmmlV6SlK6HBspUs+4dA==", "AubAiMGhSleQ3ls/OMQ9nw==" ], "X-CSE-MsgGUID": [ "dKPN6skbQjGh+Kg1Fc677w==", "jkBwwicYTfavP84DJduqeA==" ], "X-IronPort-AV": [ "E=McAfee;i=\"6800,10657,11663\"; a=\"86491207\"", "E=Sophos;i=\"6.21,204,1763452800\"; d=\"scan'208\";a=\"86491207\"", "E=Sophos;i=\"6.21,204,1763452800\"; d=\"scan'208\";a=\"226199273\"" ], "X-ExtLoop1": "1", "From": "Vitaly Lifshits <vitaly.lifshits@intel.com>", "To": "intel-wired-lan@lists.osuosl.org", "Cc": "Vitaly Lifshits <vitaly.lifshits@intel.com>", "Date": "Tue, 6 Jan 2026 16:14:18 +0200", "Message-Id": "<20260106141420.1585948-1-vitaly.lifshits@intel.com>", "X-Mailer": "git-send-email 2.34.1", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "X-Mailman-Original-DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/simple;\n d=intel.com; i=@intel.com; q=dns/txt; s=Intel;\n t=1767708866; x=1799244866;\n h=from:to:cc:subject:date:message-id:mime-version:\n content-transfer-encoding;\n bh=b4LiLGy9J30wtCycH47itDGhNDto6H3hMhEStmVsEgM=;\n b=VdaEzGPnMuL0G7xhLUEjPg6T/H8dtPVeAfRda1y3oEs64D67JA99Fu54\n jPq5Jmv5STJtK5pZmkG4uMYSiRlCMS9g+WTd5myamtBz1TKrJUz58Fa8P\n wAB/1gR482PtOaqoutqDfxxPsxbZgfEF72gwLjb9OkcPpislhIoGtO9d7\n X75Z+wToxIeW2ZgtNaJ6Cv+5koWDcpEwfBQ+mS/Jrq05/7CnW1rbXNihU\n Yz8mcPvO9KGPCoIb6MLycRezR/v4nqsSTjNWkzC5KMhkFrsn8Wu6a/GH9\n FVVrJj1OV8EiDFyb4kfd/qFO6i8gDTL6bn+PxIyLxR94tBBfTJhOQx1sE\n A==;", "X-Mailman-Original-Authentication-Results": [ "smtp4.osuosl.org;\n dmarc=pass (p=none dis=none)\n header.from=intel.com", "smtp4.osuosl.org;\n dkim=pass (2048-bit key,\n unprotected) header.d=intel.com header.i=@intel.com header.a=rsa-sha256\n header.s=Intel header.b=VdaEzGPn" ], "Subject": "[Intel-wired-lan] [PATCH iwl-net v2 0/2] e1000e: avoid unexpected\n autonomous power-gating on Panther Lake devices", "X-BeenThere": "intel-wired-lan@osuosl.org", "X-Mailman-Version": "2.1.30", "Precedence": "list", "List-Id": "Intel Wired Ethernet Linux Kernel Driver Development\n <intel-wired-lan.osuosl.org>", "List-Unsubscribe": "<https://lists.osuosl.org/mailman/options/intel-wired-lan>,\n <mailto:intel-wired-lan-request@osuosl.org?subject=unsubscribe>", "List-Archive": "<http://lists.osuosl.org/pipermail/intel-wired-lan/>", "List-Post": "<mailto:intel-wired-lan@osuosl.org>", "List-Help": "<mailto:intel-wired-lan-request@osuosl.org?subject=help>", "List-Subscribe": "<https://lists.osuosl.org/mailman/listinfo/intel-wired-lan>,\n <mailto:intel-wired-lan-request@osuosl.org?subject=subscribe>", "Errors-To": "intel-wired-lan-bounces@osuosl.org", "Sender": "\"Intel-wired-lan\" <intel-wired-lan-bounces@osuosl.org>" }, "content": "Panther Lake systems introduced an autonomous power gating feature for the\nintegrated Gigabit Ethernet in shutdown (S5) state. As part of it, the\nreset value of DPG_EN bit was changed to 1. Clear this bit after\nperforming hardware reset, to avoid errors such as Tx/Rx hangs, or packet\nloss/corruption.\n\nThis patch requires introducing a new board type for separating Panther\nLake and later devices from earlier ones.\n\nVitaly Lifshits (2):\n e1000e: introduce new board type for Panther Lake PCH\n e1000e: clear DPG_EN after reset to avoid autonomous power-gating\n\n drivers/net/ethernet/intel/e1000e/defines.h | 1 +\n drivers/net/ethernet/intel/e1000e/e1000.h | 4 ++-\n drivers/net/ethernet/intel/e1000e/hw.h | 2 --\n drivers/net/ethernet/intel/e1000e/ich8lan.c | 30 +++++++++++++++++++++\n drivers/net/ethernet/intel/e1000e/netdev.c | 15 +++++------\n 5 files changed, 41 insertions(+), 11 deletions(-)" }