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 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6AC22C433EF for ; Thu, 7 Oct 2021 17:27:21 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 0D9C060E09 for ; Thu, 7 Oct 2021 17:27:21 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 0D9C060E09 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.intel.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=nongnu.org Received: from localhost ([::1]:40670 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mYXAu-0002jm-8u for qemu-devel@archiver.kernel.org; Thu, 07 Oct 2021 13:27:20 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:51026) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mYWQb-0001rJ-AJ; Thu, 07 Oct 2021 12:39:29 -0400 Received: from mga04.intel.com ([192.55.52.120]:55434) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mYWQZ-0008BP-G7; Thu, 07 Oct 2021 12:39:29 -0400 X-IronPort-AV: E=McAfee;i="6200,9189,10130"; a="225073121" X-IronPort-AV: E=Sophos;i="5.85,355,1624345200"; d="scan'208";a="225073121" Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 07 Oct 2021 09:26:15 -0700 X-IronPort-AV: E=Sophos;i="5.85,355,1624345200"; d="scan'208";a="624325955" Received: from lmaniak-dev.igk.intel.com ([10.55.248.48]) by fmsmga001-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 07 Oct 2021 09:26:13 -0700 From: Lukasz Maniak To: qemu-devel@nongnu.org Subject: [PATCH 13/15] pcie: Add helpers to the SR/IOV API Date: Thu, 7 Oct 2021 18:24:04 +0200 Message-Id: <20211007162406.1920374-14-lukasz.maniak@linux.intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20211007162406.1920374-1-lukasz.maniak@linux.intel.com> References: <20211007162406.1920374-1-lukasz.maniak@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Received-SPF: none client-ip=192.55.52.120; envelope-from=lukasz.maniak@linux.intel.com; helo=mga04.intel.com X-Spam_score_int: -41 X-Spam_score: -4.2 X-Spam_bar: ---- X-Spam_report: (-4.2 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_NONE=0.001, SPF_NONE=0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-Mailman-Approved-At: Thu, 07 Oct 2021 13:12:41 -0400 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: =?UTF-8?q?=C5=81ukasz=20Gieryk?= , Lukasz Maniak , qemu-block@nongnu.org, "Michael S. Tsirkin" Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Łukasz Gieryk Two convenience functions for retrieving: - the total number of VFs, - the PCIDevice object of the N-th VF. Signed-off-by: Łukasz Gieryk --- hw/pci/pcie_sriov.c | 14 ++++++++++++++ include/hw/pci/pcie_sriov.h | 8 ++++++++ 2 files changed, 22 insertions(+) diff --git a/hw/pci/pcie_sriov.c b/hw/pci/pcie_sriov.c index cac2aee061..5a8e92d5ab 100644 --- a/hw/pci/pcie_sriov.c +++ b/hw/pci/pcie_sriov.c @@ -292,8 +292,22 @@ uint16_t pcie_sriov_vf_number(PCIDevice *dev) return dev->exp.sriov_vf.vf_number; } +uint16_t pcie_sriov_vf_number_total(PCIDevice *dev) +{ + assert(!pci_is_vf(dev)); + return dev->exp.sriov_pf.num_vfs; +} PCIDevice *pcie_sriov_get_pf(PCIDevice *dev) { return dev->exp.sriov_vf.pf; } + +PCIDevice *pcie_sriov_get_vf_at_index(PCIDevice *dev, int n) +{ + assert(!pci_is_vf(dev)); + if (n < dev->exp.sriov_pf.num_vfs) { + return dev->exp.sriov_pf.vf[n]; + } + return NULL; +} diff --git a/include/hw/pci/pcie_sriov.h b/include/hw/pci/pcie_sriov.h index 9ab48b79c0..d1f39b7223 100644 --- a/include/hw/pci/pcie_sriov.h +++ b/include/hw/pci/pcie_sriov.h @@ -65,9 +65,17 @@ void pcie_sriov_pf_disable_vfs(PCIDevice *dev); /* Get logical VF number of a VF - only valid for VFs */ uint16_t pcie_sriov_vf_number(PCIDevice *dev); +/* Get the total number of VFs - only valid for PF */ +uint16_t pcie_sriov_vf_number_total(PCIDevice *dev); + /* Get the physical function that owns this VF. * Returns NULL if dev is not a virtual function */ PCIDevice *pcie_sriov_get_pf(PCIDevice *dev); +/* Get the n-th VF of this physical function - only valid for PF. + * Returns NULL if index is invalid + */ +PCIDevice *pcie_sriov_get_vf_at_index(PCIDevice *dev, int n); + #endif /* QEMU_PCIE_SRIOV_H */ -- 2.25.1