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=-19.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,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 066FDC49361 for ; Mon, 28 Jun 2021 14:51:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DA66561C8D for ; Mon, 28 Jun 2021 14:51:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235098AbhF1Ox6 (ORCPT ); Mon, 28 Jun 2021 10:53:58 -0400 Received: from mail.kernel.org ([198.145.29.99]:55272 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233843AbhF1OwE (ORCPT ); Mon, 28 Jun 2021 10:52:04 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 9144D61D33; Mon, 28 Jun 2021 14:37:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1624891034; bh=elsntXTpOtuQG0Xo96u6tNv8ea2pMZ5wYhvSnG6sM/8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=eH/jbpPjJQiJRBpSOcAk6LWu7SFO8rzr7QY+i75Hkj9YeoX8gOH62bwBOiYt7x2UI J9U+20dPwPUxf7gE4dsI1ALJWCv9DfM4gBr7TiyBN2hdlW1k8kwWTgwJnMyoR1rx4e XjxMbfqfNgR8ZebwonbVKFuJG80OU7kmqVsPlRxtXbeEMysssKQouqK0eKTEPXbdwO /TqnPUAhSE1p4UYWUtD4ZWLeNfGSN7x95FS/uh0ZWh/1xgfE1TFzJx2MCyPOGTr9FK kLsODDcqCyIT6ZVCYFrZWe1BPVGhLLWYO1Wp5D9gtVkId6/58DSmozIGgRG9VS8zO0 qRETpvyNjr9Fg== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Sriharsha Basavapatna , Michael Chan , Bjorn Helgaas , Greg Kroah-Hartman Subject: [PATCH 4.14 51/88] PCI: Add ACS quirk for Broadcom BCM57414 NIC Date: Mon, 28 Jun 2021 10:35:51 -0400 Message-Id: <20210628143628.33342-52-sashal@kernel.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210628143628.33342-1-sashal@kernel.org> References: <20210628143628.33342-1-sashal@kernel.org> MIME-Version: 1.0 X-KernelTest-Patch: http://kernel.org/pub/linux/kernel/v4.x/stable-review/patch-4.14.238-rc1.gz X-KernelTest-Tree: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git X-KernelTest-Branch: linux-4.14.y X-KernelTest-Patches: git://git.kernel.org/pub/scm/linux/kernel/git/stable/stable-queue.git X-KernelTest-Version: 4.14.238-rc1 X-KernelTest-Deadline: 2021-06-30T14:36+00:00 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit 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(+) diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index de7d65971d7f..3602e967e96a 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -4684,6 +4684,8 @@ 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 }, { 0 } }; -- 2.30.2