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vDPA/ifcvf: dynamic allocate vq data stores

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This commit dynamically allocates the data
stores for the virtqueues based on
virtio_pci_common_cfg.num_queues.

Signed-off-by: Zhu Lingshan <lingshan.zhu@intel.com>
Message-Id: <20230612151420.1019504-2-lingshan.zhu@intel.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Zhu Lingshan 2023-06-12 23:14:18 +08:00 committed by Michael S. Tsirkin
parent bc9a2b3e68
commit 7712832201
3 changed files with 6 additions and 1 deletions
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3
drivers/vdpa/ifcvf/ifcvf_base.c
View File

@ -134,6 +134,9 @@ next:
}
hw->nr_vring = vp_ioread16(&hw->common_cfg->num_queues);
hw->vring = kzalloc(sizeof(struct vring_info) * hw->nr_vring, GFP_KERNEL);
if (!hw->vring)
return -ENOMEM;
for (i = 0; i < hw->nr_vring; i++) {
vp_iowrite16(i, &hw->common_cfg->queue_select);

2
drivers/vdpa/ifcvf/ifcvf_base.h
View File

@ -74,7 +74,7 @@ struct ifcvf_hw {
u64 dev_features;
struct virtio_pci_common_cfg __iomem *common_cfg;
void __iomem *dev_cfg;
struct vring_info vring[IFCVF_MAX_QUEUES];
struct vring_info *vring;
void __iomem * const *base;
char config_msix_name[256];
struct vdpa_callback config_cb;

2
drivers/vdpa/ifcvf/ifcvf_main.c
View File

@ -830,6 +830,7 @@ static int ifcvf_probe(struct pci_dev *pdev, const struct pci_device_id *id)
return 0;
err:
kfree(ifcvf_mgmt_dev->vf.vring);
kfree(ifcvf_mgmt_dev);
return ret;
}
@ -840,6 +841,7 @@ static void ifcvf_remove(struct pci_dev *pdev)
ifcvf_mgmt_dev = pci_get_drvdata(pdev);
vdpa_mgmtdev_unregister(&ifcvf_mgmt_dev->mdev);
kfree(ifcvf_mgmt_dev->vf.vring);
kfree(ifcvf_mgmt_dev);
}