From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5881A7E591; Sun, 28 Jul 2024 16:10:58 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1722183058; cv=none; b=aUUi0U0NQhi6srqIl+/D64PrvUtKoPfzDU56L/WfI8MUGGyE7AfaXzZs/Cnzv89Zi7JbrjE0wHV6tM7Ma/CKj2bLH5aiRtP1sHwD4k+LfMzIgZJglLJU96wCrsoR12eFJQWitbVrP+R3kdzMRfCMu8+G4nNE9lS2aNPVathw0cs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1722183058; c=relaxed/simple; bh=97fXIGhKlQ53uprVUf/kOjQudazMme3HpSsGf+W/dxg=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version:Content-Type; b=GmhGMBHiPV27oLRspmfLMXm0TM53u2QxTpmZcUEIlxr2oXSOEqIiju91u0zyjuwHNj4G7wfpwrSyWDnGMIUXJ13JHCs/Qq6RyWhh8vUN6O264Z8i1m3qxsUZxTE22uDPSyLCeDQxxEVk7jyMGmLmYeVLYVf4greTmUVYuJzKaj8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=BCyna17H; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="BCyna17H" Received: by smtp.kernel.org (Postfix) with ESMTPSA id CCB2DC116B1; Sun, 28 Jul 2024 16:10:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1722183057; bh=97fXIGhKlQ53uprVUf/kOjQudazMme3HpSsGf+W/dxg=; h=From:To:Cc:Subject:Date:From; b=BCyna17HSBpi13hdL3My643C8+j1v2IdA8gxno9v2lS2ueb9AdFEgfZZNLU+S1THD ZhkgPogYqqTxmI8NGTbTEoo+v2kG25CnNwcEYp/WYFyOkUTzQMOn6V6SnOxgdPnMUq SDVo+sbIgzAdLa5b15OknL4hY4gV6RvoFMQM2kzvSPEKwFg7nIeFIVGH+tTS1LDbQF +AXCZ9Kpv0UY3F9Toct7lfrjrXZ7ADOTx8oBC5D2HNFQnB2UhrThg584FWXqJVa/ja g9qGP154ZQa/MglQKBGZdGw3t+jWOSKw7tPYZzdfNuVoAOMLBtXUo8gFfyu0d+lM2g yXf8l5LPmU21g== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Ajit Khaparde , =?UTF-8?q?Krzysztof=20Wilczy=C5=84ski?= , Bjorn Helgaas , Andy Gospodarek , Sasha Levin , linux-pci@vger.kernel.org Subject: [PATCH AUTOSEL 4.19 1/4] PCI: Add ACS quirk for Broadcom BCM5760X NIC Date: Sun, 28 Jul 2024 12:10:50 -0400 Message-ID: <20240728161055.2054513-1-sashal@kernel.org> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-stable: review X-Patchwork-Hint: Ignore X-stable-base: Linux 4.19.319 Content-Transfer-Encoding: 8bit From: Ajit Khaparde [ Upstream commit 524e057b2d66b61f9b63b6db30467ab7b0bb4796 ] The Broadcom BCM5760X 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 ok 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. [kwilczynski: commit log] Link: https://lore.kernel.org/linux-pci/20240510204228.73435-1-ajit.khaparde@broadcom.com Signed-off-by: Ajit Khaparde Signed-off-by: Krzysztof Wilczyński Signed-off-by: Bjorn Helgaas Reviewed-by: Andy Gospodarek Signed-off-by: Sasha Levin --- drivers/pci/quirks.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index bb51820890965..a3a4c4724b6c9 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -4822,6 +4822,10 @@ static const struct pci_dev_acs_enabled { { 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, 0x1760, pci_quirk_mf_endpoint_acs }, + { PCI_VENDOR_ID_BROADCOM, 0x1761, pci_quirk_mf_endpoint_acs }, + { PCI_VENDOR_ID_BROADCOM, 0x1762, pci_quirk_mf_endpoint_acs }, + { PCI_VENDOR_ID_BROADCOM, 0x1763, pci_quirk_mf_endpoint_acs }, { PCI_VENDOR_ID_BROADCOM, 0xD714, pci_quirk_brcm_acs }, { 0 } }; -- 2.43.0