From patchwork Mon Oct 17 21:22:10 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kirti Wankhede X-Patchwork-Id: 9380603 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id C6404600CA for ; Mon, 17 Oct 2016 21:23:03 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id AF736289D9 for ; Mon, 17 Oct 2016 21:23:03 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id A4319290A6; Mon, 17 Oct 2016 21:23:03 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 2795C289D9 for ; Mon, 17 Oct 2016 21:23:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S936460AbcJQVWy (ORCPT ); Mon, 17 Oct 2016 17:22:54 -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 Received: from hqnvupgp07.nvidia.com (Not Verified[216.228.121.13]) by hqemgate16.nvidia.com id ; Mon, 17 Oct 2016 14:18:50 -0700 Received: from HQMAIL107.nvidia.com ([172.20.13.39]) by hqnvupgp07.nvidia.com (PGP Universal service); Mon, 17 Oct 2016 14:14:39 -0700 X-PGP-Universal: processed; by hqnvupgp07.nvidia.com on Mon, 17 Oct 2016 14:14:39 -0700 Received: from HQMAIL102.nvidia.com (172.18.146.10) by HQMAIL107.nvidia.com (172.20.187.13) with Microsoft SMTP Server (TLS) id 15.0.1210.3; Mon, 17 Oct 2016 21:21:42 +0000 Received: from HQMAIL103.nvidia.com (172.20.187.11) by HQMAIL102.nvidia.com (172.18.146.10) with Microsoft SMTP Server (TLS) id 15.0.1210.3; Mon, 17 Oct 2016 21:21:42 +0000 Received: from kwankhede-dev.nvidia.com (172.20.13.39) by HQMAIL103.nvidia.com (172.20.187.11) with Microsoft SMTP Server (TLS) id 15.0.1210.3 via Frontend Transport; Mon, 17 Oct 2016 21:21:38 +0000 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 Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP 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);