From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0DBC5CA9EB9 for ; Wed, 23 Oct 2019 22:23:49 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D75D42173B for ; Wed, 23 Oct 2019 22:23:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1571869428; bh=vlpVZYvaUE1VTVX3xNbH1XFQzcYBGlvDDimEJavMs7Q=; h=From:To:Cc:Subject:Date:List-ID:From; b=1rL5lFQpYAV8QtfRmKPw799Cu17kKPmECUqCL4NXXMiOUe+RyIyHNS0Kl71usWZJK DRXxgaJx55ZkjsLlAp1bYMxUC2hhpdiWloQo/2tR7/0EeYWnvxdrxDIIocPXLcUYMz w+Dxj9Cx/CU9Q6QQr/MXyQKJxQKIRiVo49xRClvI= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2436651AbfJWWXq (ORCPT ); Wed, 23 Oct 2019 18:23:46 -0400 Received: from mail.kernel.org ([198.145.29.99]:54266 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2407859AbfJWWXq (ORCPT ); Wed, 23 Oct 2019 18:23:46 -0400 Received: from lore-desk.lan (unknown [151.66.11.57]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 77BF22173B; Wed, 23 Oct 2019 22:23:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1571869425; bh=vlpVZYvaUE1VTVX3xNbH1XFQzcYBGlvDDimEJavMs7Q=; h=From:To:Cc:Subject:Date:From; b=a0RQrO7uQMbl1YJAk4yto+/yIEVkW8iXZAO9gSN505iwNEfPi89F10AumMQjIYdm2 wrvLGl6yhlM99pON3NPDAC/CBDAgFE9mJgKdPYKE47arTb0u7lGA7UgIO5M2ZkLHcy h8R/KW9dqvtZPY787nM5MFcu/SecWnrKbGwMovNw= From: Lorenzo Bianconi To: kvalo@codeaurora.org Cc: linux-wireless@vger.kernel.org, nbd@nbd.name, sgruszka@redhat.com, lorenzo.bianconi@redhat.com, oleksandr@natalenko.name, netdev@vger.kernel.org Subject: [PATCH wireless-drivers 0/2] fix mt76x2e hangs on U7612E mini-pcie Date: Thu, 24 Oct 2019 00:23:14 +0200 Message-Id: X-Mailer: git-send-email 2.21.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org Various mt76x2e issues have been reported on U7612E mini-pcie card [1]. On U7612E-H1 PCIE_ASPM causes continuous mcu hangs and instability and so patch 1/2 disable it by default. Moreover mt76 does not properly unmap dma buffers for non-linear skbs. This issue may result in hw hangs if the system relies on IOMMU. Patch 2/2 fix the problem properly unmapping data fragments on non-linear skbs. [1]: https://lore.kernel.org/netdev/deaafa7a3e9ea2111ebb5106430849c6@natalenko.name/ Lorenzo Bianconi (2): mt76: mt76x2e: disable pcie_aspm by default mt76: dma: fix buffer unmap with non-linear skbs drivers/net/wireless/mediatek/mt76/dma.c | 10 ++-- drivers/net/wireless/mediatek/mt76/mmio.c | 47 +++++++++++++++++++ drivers/net/wireless/mediatek/mt76/mt76.h | 1 + .../net/wireless/mediatek/mt76/mt76x2/pci.c | 2 + 4 files changed, 57 insertions(+), 3 deletions(-) -- 2.21.0