Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S936597AbcJQVXD (ORCPT ); Mon, 17 Oct 2016 17:23:03 -0400 Received: from hqemgate16.nvidia.com ([216.228.121.65]:1964 "EHLO hqemgate16.nvidia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1034056AbcJQVVo (ORCPT ); Mon, 17 Oct 2016 17:21:44 -0400 X-PGP-Universal: processed; by hqnvupgp07.nvidia.com on Mon, 17 Oct 2016 14:14:39 -0700 From: Kirti Wankhede To: , , , CC: , , , , , , Kirti Wankhede Subject: [PATCH v9 10/12] vfio: Add function to get device_api string from vfio_device_info.flags Date: Tue, 18 Oct 2016 02:52:10 +0530 Message-ID: <1476739332-4911-11-git-send-email-kwankhede@nvidia.com> X-Mailer: git-send-email 2.7.0 In-Reply-To: <1476739332-4911-1-git-send-email-kwankhede@nvidia.com> References: <1476739332-4911-1-git-send-email-kwankhede@nvidia.com> X-NVConfidentiality: public MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1637 Lines: 53 Function vfio_device_api_string() returns string based on flag set in vfio_device_info's flag. This should be used by vendor driver to get string based on flag for device_api attribute. Signed-off-by: Kirti Wankhede Signed-off-by: Neo Jia Change-Id: I42d29f475f02a7132ce13297fbf2b48f1da10995 --- drivers/vfio/vfio.c | 15 +++++++++++++++ include/linux/vfio.h | 2 ++ 2 files changed, 17 insertions(+) diff --git a/drivers/vfio/vfio.c b/drivers/vfio/vfio.c index 10ef1c5fa762..aec470454a13 100644 --- a/drivers/vfio/vfio.c +++ b/drivers/vfio/vfio.c @@ -1917,6 +1917,21 @@ int vfio_set_irqs_validate_and_prepare(struct vfio_irq_set *hdr, int num_irqs, } EXPORT_SYMBOL(vfio_set_irqs_validate_and_prepare); +const char *vfio_device_api_string(u32 flags) +{ + if (flags & VFIO_DEVICE_FLAGS_PCI) + return "vfio-pci"; + + if (flags & VFIO_DEVICE_FLAGS_PLATFORM) + return "vfio-platform"; + + if (flags & VFIO_DEVICE_FLAGS_AMBA) + return "vfio-amba"; + + return ""; +} +EXPORT_SYMBOL(vfio_device_api_string); + /* * Pin a set of guest PFNs and return their associated host PFNs for local * domain only. diff --git a/include/linux/vfio.h b/include/linux/vfio.h index 31d059f1649b..fca2bf23c4f1 100644 --- a/include/linux/vfio.h +++ b/include/linux/vfio.h @@ -116,6 +116,8 @@ extern int vfio_set_irqs_validate_and_prepare(struct vfio_irq_set *hdr, int num_irqs, int max_irq_type, size_t *data_size); +extern const char *vfio_device_api_string(u32 flags); + struct pci_dev; #ifdef CONFIG_EEH extern void vfio_spapr_pci_eeh_open(struct pci_dev *pdev); -- 2.7.0