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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9E6B0C25B06 for ; Sun, 14 Aug 2022 15:47:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241467AbiHNPrO (ORCPT ); Sun, 14 Aug 2022 11:47:14 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55076 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S241665AbiHNPqG (ORCPT ); Sun, 14 Aug 2022 11:46:06 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 49C9BB1DC; Sun, 14 Aug 2022 08:34:37 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 84639B80B27; Sun, 14 Aug 2022 15:34:35 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 86F3AC433B5; Sun, 14 Aug 2022 15:34:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1660491274; bh=sZ3FI8gzIs/qxa0LbylMl31H7eqy955v1DuUIiaVNOw=; h=From:To:Cc:Subject:Date:From; b=j30ovNiAYEjTaCMI/fm9M9pzOERfsd4o0KYrfvBgVjCthrad0xB/ShsQEBV4JtcfW DKTNSE0RYZHVikLX6ovciXLWvTO4vb4rxh86VgXLPwo1B82qgEd1aT1Xu6IT1gEPH1 r/GMbCzy2xB9M0M2hVPJuw07LOgGxXmV2RsOCFvIexJJRMQcAdVa7dpgQJW8YDg/fS uX4sEmvlcee5fScUGus2e96567xddpkbXG9QS4RABvsVnSNOj3KB2GoUXBYRZuxmMT Pf8IfY9CjouxRH2oELHxOb7bPTvQWWpTajABmvOvN3b9JxadZPbJbRzSLPRY+sh3sc qcYbovzrX4sug== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Pavan Chebbi , Michael Chan , Bjorn Helgaas , Sasha Levin , linux-pci@vger.kernel.org Subject: [PATCH AUTOSEL 5.10 01/31] PCI: Add ACS quirk for Broadcom BCM5750x NICs Date: Sun, 14 Aug 2022 11:34:01 -0400 Message-Id: <20220814153431.2379231-1-sashal@kernel.org> X-Mailer: git-send-email 2.35.1 MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org From: Pavan Chebbi [ Upstream commit afd306a65cedb9589564bdb23a0c368abc4215fd ] The Broadcom BCM5750x NICs may be multi-function devices. They do not advertise 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 these devices so the functions can be in independent IOMMU groups and attached individually to userspace applications using VFIO. Link: https://lore.kernel.org/r/1654796507-28610-1-git-send-email-michael.chan@broadcom.com Signed-off-by: Pavan Chebbi Signed-off-by: Michael Chan Signed-off-by: Bjorn Helgaas Signed-off-by: Sasha Levin --- drivers/pci/quirks.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 1be2894ada70..fb2e52fd01b3 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -4897,6 +4897,9 @@ static const struct pci_dev_acs_enabled { { 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, 0x1750, pci_quirk_mf_endpoint_acs }, + { PCI_VENDOR_ID_BROADCOM, 0x1751, pci_quirk_mf_endpoint_acs }, + { PCI_VENDOR_ID_BROADCOM, 0x1752, 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 }, -- 2.35.1