From mboxrd@z Thu Jan 1 00:00:00 1970 From: Zhu Lingshan Subject: [PATCH V3 5/6] ifcvf: replace irq_request/free with vDPA helpers Date: Wed, 22 Jul 2020 18:08:58 +0800 Message-ID: <20200722100859.221669-6-lingshan.zhu@intel.com> References: <20200722100859.221669-1-lingshan.zhu@intel.com> Return-path: In-Reply-To: <20200722100859.221669-1-lingshan.zhu@intel.com> Sender: netdev-owner@vger.kernel.org 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, Zhu Lingshan List-Id: virtualization@lists.linuxfoundation.org This commit replaced irq_request/free() with vDPA helpers vdpa_devm_request/free_irq() so that it can request/free irq and setup irq offloading on order. Signed-off-by: Zhu Lingshan --- drivers/vdpa/ifcvf/ifcvf_main.c | 14 +++++++++----- 1 file changed, 9 insertions(+), 5 deletions(-) diff --git a/drivers/vdpa/ifcvf/ifcvf_main.c b/drivers/vdpa/ifcvf/ifcvf_main.c index f5a60c14b979..65aab6bcaccb 100644 --- a/drivers/vdpa/ifcvf/ifcvf_main.c +++ b/drivers/vdpa/ifcvf/ifcvf_main.c @@ -47,11 +47,12 @@ static void ifcvf_free_irq(struct ifcvf_adapter *adapter, int queues) { struct pci_dev *pdev = adapter->pdev; struct ifcvf_hw *vf = &adapter->vf; + struct vdpa_device *vdpa = &adapter->vdpa; int i; for (i = 0; i < queues; i++) - devm_free_irq(&pdev->dev, vf->vring[i].irq, &vf->vring[i]); + vdpa_devm_free_irq(&pdev->dev, vdpa, vf->vring[i].irq, i, &vf->vring[i]); ifcvf_free_irq_vectors(pdev); } @@ -60,6 +61,7 @@ static int ifcvf_request_irq(struct ifcvf_adapter *adapter) { struct pci_dev *pdev = adapter->pdev; struct ifcvf_hw *vf = &adapter->vf; + struct vdpa_device *vdpa = &adapter->vdpa; int vector, i, ret, irq; ret = pci_alloc_irq_vectors(pdev, IFCVF_MAX_INTR, @@ -73,6 +75,10 @@ static int ifcvf_request_irq(struct ifcvf_adapter *adapter) pci_name(pdev)); vector = 0; irq = pci_irq_vector(pdev, vector); + /* This is config interrupt, config accesses all go + * through userspace, so no need to setup + * config interrupt offloading. + */ ret = devm_request_irq(&pdev->dev, irq, ifcvf_config_changed, 0, vf->config_msix_name, vf); @@ -82,13 +88,11 @@ static int ifcvf_request_irq(struct ifcvf_adapter *adapter) pci_name(pdev), i); vector = i + IFCVF_MSI_QUEUE_OFF; irq = pci_irq_vector(pdev, vector); - ret = devm_request_irq(&pdev->dev, irq, + ret = vdpa_devm_request_irq(&pdev->dev, vdpa, irq, ifcvf_intr_handler, 0, vf->vring[i].msix_name, - &vf->vring[i]); + &vf->vring[i], i); if (ret) { - IFCVF_ERR(pdev, - "Failed to request irq for vq %d\n", i); ifcvf_free_irq(adapter, i); return ret; -- 2.18.4