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 40066C25B06 for ; Sun, 14 Aug 2022 15:34:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240765AbiHNPed (ORCPT ); Sun, 14 Aug 2022 11:34:33 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39672 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240725AbiHNPd6 (ORCPT ); Sun, 14 Aug 2022 11:33:58 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 86B2ECE10; Sun, 14 Aug 2022 08:30:34 -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 dfw.source.kernel.org (Postfix) with ESMTPS id 33BB060C58; Sun, 14 Aug 2022 15:30:32 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id E03B7C4314F; Sun, 14 Aug 2022 15:30:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1660491031; bh=XoTiZoUVZX4pd9WYhnysuZkslFJxFicRZdPAq2tGTyg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ZP5DIMF4ztMuXq7NNtZnygVTcNhv9dIw3jROlvb4F7Jpt5OgGHzY0kSnyEiy6bB6W rjMPLt0YBaDkxEtuYD4jD4VCwmeN+D6ZOFhos48h60PPUFlhxXHv3TTbLgY4ZKrHay beWVJrF+76sV4QZj/z/FDJwQ2HOL3T2CxG8hgCpjkkSl7EAbiWBqd8rtEPgV/p+MZL l5PV7Qpq9MnvanuKMgWWUUSJID2rokKjFj7kerM+OMnUvxlvyWaPjG59BL+Xs8okKf Kmq4e/pawJJFL2bmVE5KGTYCSnr2FcxFRH55yghLLic5O5AUSJ24VQucumfqex/dCK ZZWTcp4gKuUhA== 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 5.18 03/56] PCI: Add ACS quirk for Broadcom BCM5750x NICs Date: Sun, 14 Aug 2022 11:29:33 -0400 Message-Id: <20220814153026.2377377-3-sashal@kernel.org> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220814153026.2377377-1-sashal@kernel.org> References: <20220814153026.2377377-1-sashal@kernel.org> 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 41aeaa235132..2e68f50bc7ae 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -4924,6 +4924,9 @@ 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