From patchwork Fri Jul 31 06:55:32 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Zhu, Lingshan" X-Patchwork-Id: 11694231 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 330C7722 for ; Fri, 31 Jul 2020 07:00:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 245BC20829 for ; Fri, 31 Jul 2020 07:00:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731581AbgGaHAJ (ORCPT ); Fri, 31 Jul 2020 03:00:09 -0400 Received: from mga17.intel.com ([192.55.52.151]:8274 "EHLO mga17.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731575AbgGaG77 (ORCPT ); Fri, 31 Jul 2020 02:59:59 -0400 IronPort-SDR: iglRBUCDj/xs8HOQqn+NqPTbKUylYccAfVDhhKW6hl0+gHeNfj1rLfoZPVcEGvevS+qVuOabJ1 WOPcjq9MNKgw== X-IronPort-AV: E=McAfee;i="6000,8403,9698"; a="131810481" X-IronPort-AV: E=Sophos;i="5.75,417,1589266800"; d="scan'208";a="131810481" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga007.fm.intel.com ([10.253.24.52]) by fmsmga107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 30 Jul 2020 23:59:58 -0700 IronPort-SDR: txmNrT9hwpKtf+0HrhfgR0pTovoFnXQQUxIr1py9xf4xGyp3AjZH3Xb/SBTVxYGSFm6RcLcu3G PFobSw/51tNw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.75,417,1589266800"; d="scan'208";a="273136596" Received: from unknown (HELO localhost.localdomain.bj.intel.com) ([10.240.192.131]) by fmsmga007.fm.intel.com with ESMTP; 30 Jul 2020 23:59:55 -0700 From: Zhu Lingshan To: jasowang@redhat.com, alex.williamson@redhat.com, mst@redhat.com, pbonzini@redhat.com, sean.j.christopherson@intel.com, wanpengli@tencent.com Cc: virtualization@lists.linux-foundation.org, netdev@vger.kernel.org, kvm@vger.kernel.org, eli@mellanox.com, shahafs@mellanox.com, parav@mellanox.com, Zhu Lingshan Subject: [PATCH V5 5/6] ifcvf: implement vdpa_config_ops.get_vq_irq() Date: Fri, 31 Jul 2020 14:55:32 +0800 Message-Id: <20200731065533.4144-6-lingshan.zhu@intel.com> X-Mailer: git-send-email 2.18.4 In-Reply-To: <20200731065533.4144-1-lingshan.zhu@intel.com> References: <20200731065533.4144-1-lingshan.zhu@intel.com> Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org This commit implemented vdpa_config_ops.get_vq_irq() in ifcvf, and initialized vq irq to -EINVAL. So that ifcvf can report irq number of a vq, or -EINVAL if the vq is not assigned an irq number. Signed-off-by: Zhu Lingshan Suggested-by: Jason Wang --- drivers/vdpa/ifcvf/ifcvf_main.c | 18 ++++++++++++++++-- 1 file changed, 16 insertions(+), 2 deletions(-) diff --git a/drivers/vdpa/ifcvf/ifcvf_main.c b/drivers/vdpa/ifcvf/ifcvf_main.c index f5a60c14b979..a902b29b0d29 100644 --- a/drivers/vdpa/ifcvf/ifcvf_main.c +++ b/drivers/vdpa/ifcvf/ifcvf_main.c @@ -50,8 +50,10 @@ static void ifcvf_free_irq(struct ifcvf_adapter *adapter, int queues) int i; - for (i = 0; i < queues; i++) + for (i = 0; i < queues; i++) { devm_free_irq(&pdev->dev, vf->vring[i].irq, &vf->vring[i]); + vf->vring[i].irq = -EINVAL; + } ifcvf_free_irq_vectors(pdev); } @@ -352,6 +354,14 @@ static void ifcvf_vdpa_set_config_cb(struct vdpa_device *vdpa_dev, vf->config_cb.private = cb->private; } +static int ifcvf_vdpa_get_vq_irq(struct vdpa_device *vdpa_dev, + u16 qid) +{ + struct ifcvf_hw *vf = vdpa_to_vf(vdpa_dev); + + return vf->vring[qid].irq; +} + /* * IFCVF currently does't have on-chip IOMMU, so not * implemented set_map()/dma_map()/dma_unmap() @@ -369,6 +379,7 @@ static const struct vdpa_config_ops ifc_vdpa_ops = { .get_vq_ready = ifcvf_vdpa_get_vq_ready, .set_vq_num = ifcvf_vdpa_set_vq_num, .set_vq_address = ifcvf_vdpa_set_vq_address, + .get_vq_irq = ifcvf_vdpa_get_vq_irq, .kick_vq = ifcvf_vdpa_kick_vq, .get_generation = ifcvf_vdpa_get_generation, .get_device_id = ifcvf_vdpa_get_device_id, @@ -384,7 +395,7 @@ static int ifcvf_probe(struct pci_dev *pdev, const struct pci_device_id *id) struct device *dev = &pdev->dev; struct ifcvf_adapter *adapter; struct ifcvf_hw *vf; - int ret; + int ret, i; ret = pcim_enable_device(pdev); if (ret) { @@ -441,6 +452,9 @@ static int ifcvf_probe(struct pci_dev *pdev, const struct pci_device_id *id) goto err; } + for (i = 0; i < IFCVF_MAX_QUEUE_PAIRS * 2; i++) + vf->vring[i].irq = -EINVAL; + ret = vdpa_register_device(&adapter->vdpa); if (ret) { IFCVF_ERR(pdev, "Failed to register ifcvf to vdpa bus");