From patchwork Mon Jun 21 16:15:40 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 465045 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=-19.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=ham 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 B17D8C4743C for ; Mon, 21 Jun 2021 16:31:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9B19F613FA for ; Mon, 21 Jun 2021 16:31:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232317AbhFUQdX (ORCPT ); Mon, 21 Jun 2021 12:33:23 -0400 Received: from mail.kernel.org ([198.145.29.99]:49624 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232387AbhFUQbQ (ORCPT ); Mon, 21 Jun 2021 12:31:16 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id DE714613FB; Mon, 21 Jun 2021 16:25:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1624292738; bh=HQu66h/En89is9h/gFJMzxhA2BVa/XweqWCPXS/T6k4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Dx//pkVxee5mBW4LgPwJ1D+EQ4d2GuNecXKV7jk9pLqINL2Qm0X6bCIKg6nz7rrrf IKDRp00PbTWnMdKUKN2RG85B48wpZpnWAsQW+JQEIvTHBGSmkeGv2TYXNRGDLwIAQx TQrtc5ertRzd0AIMBe9pTBaJUJ8kXskSqB+Oew94= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Sriharsha Basavapatna , Michael Chan , Bjorn Helgaas Subject: [PATCH 5.10 110/146] PCI: Add ACS quirk for Broadcom BCM57414 NIC Date: Mon, 21 Jun 2021 18:15:40 +0200 Message-Id: <20210621154918.317779605@linuxfoundation.org> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210621154911.244649123@linuxfoundation.org> References: <20210621154911.244649123@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Sriharsha Basavapatna commit db2f77e2bd99dbd2fb23ddde58f0fae392fe3338 upstream. The Broadcom BCM57414 NIC may be a multi-function device. While it does not advertise an ACS capability, peer-to-peer transactions are not possible between the individual functions, so it is safe to treat them as fully isolated. Add an ACS quirk for this device so the functions can be in independent IOMMU groups and attached individually to userspace applications using VFIO. [bhelgaas: commit log] Link: https://lore.kernel.org/r/1621645997-16251-1-git-send-email-michael.chan@broadcom.com Signed-off-by: Sriharsha Basavapatna Signed-off-by: Michael Chan Signed-off-by: Bjorn Helgaas Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman --- drivers/pci/quirks.c | 2 ++ 1 file changed, 2 insertions(+) --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -4785,6 +4785,8 @@ static const struct pci_dev_acs_enabled { PCI_VENDOR_ID_AMPERE, 0xE00A, pci_quirk_xgene_acs }, { PCI_VENDOR_ID_AMPERE, 0xE00B, pci_quirk_xgene_acs }, { PCI_VENDOR_ID_AMPERE, 0xE00C, pci_quirk_xgene_acs }, + /* Broadcom multi-function device */ + { PCI_VENDOR_ID_BROADCOM, 0x16D7, pci_quirk_mf_endpoint_acs }, { PCI_VENDOR_ID_BROADCOM, 0xD714, pci_quirk_brcm_acs }, /* Amazon Annapurna Labs */ { PCI_VENDOR_ID_AMAZON_ANNAPURNA_LABS, 0x0031, pci_quirk_al_acs },