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ifcvf: implement vdpa_config_ops.get_vq_irq() 

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 <lingshan.zhu@intel.com>
Suggested-by: Jason Wang <jasowang@redhat.com>
Link: https://lore.kernel.org/r/20200731065533.4144-6-lingshan.zhu@intel.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
5.9.x+fslc
Zhu Lingshan 2020-07-31 14:55:32 +08:00 committed by Michael S. Tsirkin
parent 2cf1ba9a4d
commit 3597a2fba6
1 changed files with 16 additions and 2 deletions
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18
drivers/vdpa/ifcvf/ifcvf_main.c
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@ -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");