From patchwork Mon Mar 15 07:45:01 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Zhu, Lingshan" X-Patchwork-Id: 12138557 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4452EC433E9 for ; Mon, 15 Mar 2021 07:51:38 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1F4B864EAE for ; Mon, 15 Mar 2021 07:51:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231228AbhCOHvG (ORCPT ); Mon, 15 Mar 2021 03:51:06 -0400 Received: from mga09.intel.com ([134.134.136.24]:17801 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230317AbhCOHuc (ORCPT ); Mon, 15 Mar 2021 03:50:32 -0400 IronPort-SDR: oNzYdUtITSWApQ554VoLggiRt6QdBQx2Be1+Y3XmtMnfwcjCB2dcAn5z8TTGbiI/RCQWRx/daN MgvsG8lDxAog== X-IronPort-AV: E=McAfee;i="6000,8403,9923"; a="189140923" X-IronPort-AV: E=Sophos;i="5.81,249,1610438400"; d="scan'208";a="189140923" Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 15 Mar 2021 00:50:32 -0700 IronPort-SDR: +9Q21han6dQBQG1c6SItlm7RiSxAIsJJ7FPClazqAU/k71YTQXjSx0cavpkg10uwTgN340KqtI AeEFDL6jozKg== X-IronPort-AV: E=Sophos;i="5.81,249,1610438400"; d="scan'208";a="411752322" Received: from unknown (HELO localhost.localdomain.bj.intel.com) ([10.240.193.73]) by orsmga008-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 15 Mar 2021 00:50:30 -0700 From: Zhu Lingshan To: jasowang@redhat.com, mst@redhat.com, lulu@redhat.com, leonro@nvidia.com Cc: virtualization@lists.linux-foundation.org, netdev@vger.kernel.org, kvm@vger.kernel.org, linux-kernel@vger.kernel.org, Zhu Lingshan Subject: [PATCH V4 7/7] vDPA/ifcvf: deduce VIRTIO device ID from pdev ids Date: Mon, 15 Mar 2021 15:45:01 +0800 Message-Id: <20210315074501.15868-8-lingshan.zhu@intel.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20210315074501.15868-1-lingshan.zhu@intel.com> References: <20210315074501.15868-1-lingshan.zhu@intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org This commit checks the device ids from pdev, then deduce VIRTIO device ID from the probed device. Here we checks all four device ids than only subsystem_device_id, help detecting a certain device for furture enabling. Signed-off-by: Zhu Lingshan --- drivers/vdpa/ifcvf/ifcvf_base.c | 42 +++++++++++++++++++++++++++++++++ drivers/vdpa/ifcvf/ifcvf_base.h | 1 + drivers/vdpa/ifcvf/ifcvf_main.c | 8 ++++++- 3 files changed, 50 insertions(+), 1 deletion(-) diff --git a/drivers/vdpa/ifcvf/ifcvf_base.c b/drivers/vdpa/ifcvf/ifcvf_base.c index 4f257c4b2f76..1a6ad7a11f16 100644 --- a/drivers/vdpa/ifcvf/ifcvf_base.c +++ b/drivers/vdpa/ifcvf/ifcvf_base.c @@ -408,3 +408,45 @@ void ifcvf_notify_queue(struct ifcvf_hw *hw, u16 qid) { ifc_iowrite16(qid, hw->vring[qid].notify_addr); } + +static int ifcvf_probed_N3000(struct pci_dev *pdev) +{ + int ret = false; + + if (pdev->device == N3000_DEVICE_ID && + pdev->vendor == N3000_VENDOR_ID && + pdev->subsystem_device == N3000_SUBSYS_DEVICE_ID && + pdev->subsystem_vendor == N3000_SUBSYS_VENDOR_ID) + ret = true; + + return ret; +} + +static int ifcvf_probed_C5000X_PL(struct pci_dev *pdev) +{ + int ret = false; + + if (pdev->device == C5000X_PL_DEVICE_ID && + pdev->vendor == C5000X_PL_VENDOR_ID && + pdev->subsystem_device == C5000X_PL_SUBSYS_DEVICE_ID && + pdev->subsystem_vendor == C5000X_PL_SUBSYS_VENDOR_ID) + ret = true; + + return ret; +} + +int ifcvf_probed_virtio_net(struct ifcvf_hw *hw) +{ + struct ifcvf_adapter *adapter; + struct pci_dev *pdev; + int ret = false; + + adapter = vf_to_adapter(hw); + pdev = adapter->pdev; + + if (ifcvf_probed_N3000(pdev) || + ifcvf_probed_C5000X_PL(pdev)) + ret = true; + + return ret; +} diff --git a/drivers/vdpa/ifcvf/ifcvf_base.h b/drivers/vdpa/ifcvf/ifcvf_base.h index f77239fc1644..b2eeb16b9c2c 100644 --- a/drivers/vdpa/ifcvf/ifcvf_base.h +++ b/drivers/vdpa/ifcvf/ifcvf_base.h @@ -127,4 +127,5 @@ int ifcvf_verify_min_features(struct ifcvf_hw *hw, u64 features); u16 ifcvf_get_vq_state(struct ifcvf_hw *hw, u16 qid); int ifcvf_set_vq_state(struct ifcvf_hw *hw, u16 qid, u16 num); struct ifcvf_adapter *vf_to_adapter(struct ifcvf_hw *hw); +int ifcvf_probed_virtio_net(struct ifcvf_hw *hw); #endif /* _IFCVF_H_ */ diff --git a/drivers/vdpa/ifcvf/ifcvf_main.c b/drivers/vdpa/ifcvf/ifcvf_main.c index ea93ea7fd5df..b0787f79dac3 100644 --- a/drivers/vdpa/ifcvf/ifcvf_main.c +++ b/drivers/vdpa/ifcvf/ifcvf_main.c @@ -323,7 +323,13 @@ static u32 ifcvf_vdpa_get_generation(struct vdpa_device *vdpa_dev) static u32 ifcvf_vdpa_get_device_id(struct vdpa_device *vdpa_dev) { - return VIRTIO_ID_NET; + struct ifcvf_hw *vf = vdpa_to_vf(vdpa_dev); + u32 ret = -EOPNOTSUPP; + + if (ifcvf_probed_virtio_net(vf)) + ret = VIRTIO_ID_NET; + + return ret; } static u32 ifcvf_vdpa_get_vendor_id(struct vdpa_device *vdpa_dev)