From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from [165.204.55.251] ([165.204.55.251]:54922 "EHLO KellyTonga.amd.com" rhost-flags-FAIL-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S965649AbcBDPBQ (ORCPT ); Thu, 4 Feb 2016 10:01:16 -0500 From: Kelly Zytaruk To: bhelgaas@google.com, linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Kelly Zytaruk Subject: [PATCH] PCI: Support SRIOV on Legacy EndPoint device Date: Thu, 4 Feb 2016 09:48:26 -0500 Message-Id: <1454597306-26189-1-git-send-email-kelly.zytaruk@amd.com> Sender: linux-pci-owner@vger.kernel.org List-ID: Some AMD GPUs have hardware support for grapics SRIOV. If the GPU has a display output then the GPU needs to support Legacy VGA operation. If CLASS_CODE = VGA then the device should have a Port Type = Legacy EndPoint. Therefore in order to enable SRIOV on a GPU with a display output LEGACY_END_POINT is supported as a valid Port Type. Signed-off-by: Kelly Zytaruk --- drivers/pci/iov.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/pci/iov.c b/drivers/pci/iov.c index 31f31d4..da4fbac 100644 --- a/drivers/pci/iov.c +++ b/drivers/pci/iov.c @@ -388,7 +388,8 @@ static int sriov_init(struct pci_dev *dev, int pos) struct pci_dev *pdev; if (pci_pcie_type(dev) != PCI_EXP_TYPE_RC_END && - pci_pcie_type(dev) != PCI_EXP_TYPE_ENDPOINT) + pci_pcie_type(dev) != PCI_EXP_TYPE_ENDPOINT && + pci_pcie_type(dev) != PCI_EXP_TYPE_LEG_END) return -ENODEV; pci_read_config_word(dev, pos + PCI_SRIOV_CTRL, &ctrl); -- 1.7.10.4