On 2020/7/16 下午7:23, Zhu Lingshan wrote:
This commit replaced irq_request/free() with helpers in vDPA
core, so that it can request/free irq and setup irq offloading
on order.
Signed-off-by: Zhu Lingshan <lingshan.zhu@xxxxxxxxx>
Suggested-by: Jason Wang <jasowang@xxxxxxxxxx>
---
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 f5a60c1..bd2a317 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_free_vq_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 isconfig interrupt, config accesses all go
Missing a blank between is and config.
Thanks
+ * 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_alloc_vq_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;
