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vfio/hisi_acc: Use the new device life cycle helpers

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Tidy up @probe so all migration specific initialization logic is moved
to migration specific @init callback.

Remove vfio_pci_core_{un}init_device() given no user now.

Signed-off-by: Yi Liu <yi.l.liu@intel.com>
Signed-off-by: Kevin Tian <kevin.tian@intel.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Shameer Kolothum <shameerali.kolothum.thodi@huawei.com>
Link: https://lore.kernel.org/r/20220921104401.38898-5-kevin.tian@intel.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
This commit is contained in:
Yi Liu 2022-09-21 18:43:50 +08:00 committed by Alex Williamson
parent d3966e305a
commit 27aeb91559
3 changed files with 37 additions and 77 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

80
drivers/vfio/pci/hisilicon/hisi_acc_vfio_pci.c
View File

@ -1213,8 +1213,28 @@ static const struct vfio_migration_ops hisi_acc_vfio_pci_migrn_state_ops = {
.migration_get_state = hisi_acc_vfio_pci_get_device_state,
};
static int hisi_acc_vfio_pci_migrn_init_dev(struct vfio_device *core_vdev)
{
struct hisi_acc_vf_core_device *hisi_acc_vdev = container_of(core_vdev,
struct hisi_acc_vf_core_device, core_device.vdev);
struct pci_dev *pdev = to_pci_dev(core_vdev->dev);
struct hisi_qm *pf_qm = hisi_acc_get_pf_qm(pdev);
hisi_acc_vdev->vf_id = pci_iov_vf_id(pdev) + 1;
hisi_acc_vdev->pf_qm = pf_qm;
hisi_acc_vdev->vf_dev = pdev;
mutex_init(&hisi_acc_vdev->state_mutex);
core_vdev->migration_flags = VFIO_MIGRATION_STOP_COPY;
core_vdev->mig_ops = &hisi_acc_vfio_pci_migrn_state_ops;
return vfio_pci_core_init_dev(core_vdev);
}
static const struct vfio_device_ops hisi_acc_vfio_pci_migrn_ops = {
.name = "hisi-acc-vfio-pci-migration",
.init = hisi_acc_vfio_pci_migrn_init_dev,
.release = vfio_pci_core_release_dev,
.open_device = hisi_acc_vfio_pci_open_device,
.close_device = hisi_acc_vfio_pci_close_device,
.ioctl = hisi_acc_vfio_pci_ioctl,
@ -1228,6 +1248,8 @@ static const struct vfio_device_ops hisi_acc_vfio_pci_migrn_ops = {
static const struct vfio_device_ops hisi_acc_vfio_pci_ops = {
.name = "hisi-acc-vfio-pci",
.init = vfio_pci_core_init_dev,
.release = vfio_pci_core_release_dev,
.open_device = hisi_acc_vfio_pci_open_device,
.close_device = vfio_pci_core_close_device,
.ioctl = vfio_pci_core_ioctl,
@ -1239,63 +1261,36 @@ static const struct vfio_device_ops hisi_acc_vfio_pci_ops = {
.match = vfio_pci_core_match,
};
static int
hisi_acc_vfio_pci_migrn_init(struct hisi_acc_vf_core_device *hisi_acc_vdev,
struct pci_dev *pdev, struct hisi_qm *pf_qm)
{
int vf_id;
vf_id = pci_iov_vf_id(pdev);
if (vf_id < 0)
return vf_id;
hisi_acc_vdev->vf_id = vf_id + 1;
hisi_acc_vdev->core_device.vdev.migration_flags =
VFIO_MIGRATION_STOP_COPY;
hisi_acc_vdev->pf_qm = pf_qm;
hisi_acc_vdev->vf_dev = pdev;
mutex_init(&hisi_acc_vdev->state_mutex);
return 0;
}
static int hisi_acc_vfio_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
{
struct hisi_acc_vf_core_device *hisi_acc_vdev;
const struct vfio_device_ops *ops = &hisi_acc_vfio_pci_ops;
struct hisi_qm *pf_qm;
int vf_id;
int ret;
hisi_acc_vdev = kzalloc(sizeof(*hisi_acc_vdev), GFP_KERNEL);
if (!hisi_acc_vdev)
return -ENOMEM;
pf_qm = hisi_acc_get_pf_qm(pdev);
if (pf_qm && pf_qm->ver >= QM_HW_V3) {
ret = hisi_acc_vfio_pci_migrn_init(hisi_acc_vdev, pdev, pf_qm);
if (!ret) {
vfio_pci_core_init_device(&hisi_acc_vdev->core_device, pdev,
&hisi_acc_vfio_pci_migrn_ops);
hisi_acc_vdev->core_device.vdev.mig_ops =
&hisi_acc_vfio_pci_migrn_state_ops;
} else {
vf_id = pci_iov_vf_id(pdev);
if (vf_id >= 0)
ops = &hisi_acc_vfio_pci_migrn_ops;
else
pci_warn(pdev, "migration support failed, continue with generic interface\n");
vfio_pci_core_init_device(&hisi_acc_vdev->core_device, pdev,
&hisi_acc_vfio_pci_ops);
}
} else {
vfio_pci_core_init_device(&hisi_acc_vdev->core_device, pdev,
&hisi_acc_vfio_pci_ops);
}
hisi_acc_vdev = vfio_alloc_device(hisi_acc_vf_core_device,
core_device.vdev, &pdev->dev, ops);
if (IS_ERR(hisi_acc_vdev))
return PTR_ERR(hisi_acc_vdev);
dev_set_drvdata(&pdev->dev, &hisi_acc_vdev->core_device);
ret = vfio_pci_core_register_device(&hisi_acc_vdev->core_device);
if (ret)
goto out_free;
goto out_put_vdev;
return 0;
out_free:
vfio_pci_core_uninit_device(&hisi_acc_vdev->core_device);
kfree(hisi_acc_vdev);
out_put_vdev:
vfio_put_device(&hisi_acc_vdev->core_device.vdev);
return ret;
}
@ -1304,8 +1299,7 @@ static void hisi_acc_vfio_pci_remove(struct pci_dev *pdev)
struct hisi_acc_vf_core_device *hisi_acc_vdev = hisi_acc_drvdata(pdev);
vfio_pci_core_unregister_device(&hisi_acc_vdev->core_device);
vfio_pci_core_uninit_device(&hisi_acc_vdev->core_device);
kfree(hisi_acc_vdev);
vfio_put_device(&hisi_acc_vdev->core_device.vdev);
}
static const struct pci_device_id hisi_acc_vfio_pci_table[] = {

30
drivers/vfio/pci/vfio_pci_core.c
View File

@ -2113,36 +2113,6 @@ void vfio_pci_core_release_dev(struct vfio_device *core_vdev)
}
EXPORT_SYMBOL_GPL(vfio_pci_core_release_dev);
void vfio_pci_core_init_device(struct vfio_pci_core_device *vdev,
struct pci_dev *pdev,
const struct vfio_device_ops *vfio_pci_ops)
{
vfio_init_group_dev(&vdev->vdev, &pdev->dev, vfio_pci_ops);
vdev->pdev = pdev;
vdev->irq_type = VFIO_PCI_NUM_IRQS;
mutex_init(&vdev->igate);
spin_lock_init(&vdev->irqlock);
mutex_init(&vdev->ioeventfds_lock);
INIT_LIST_HEAD(&vdev->dummy_resources_list);
INIT_LIST_HEAD(&vdev->ioeventfds_list);
mutex_init(&vdev->vma_lock);
INIT_LIST_HEAD(&vdev->vma_list);
INIT_LIST_HEAD(&vdev->sriov_pfs_item);
init_rwsem(&vdev->memory_lock);
}
EXPORT_SYMBOL_GPL(vfio_pci_core_init_device);
void vfio_pci_core_uninit_device(struct vfio_pci_core_device *vdev)
{
mutex_destroy(&vdev->igate);
mutex_destroy(&vdev->ioeventfds_lock);
mutex_destroy(&vdev->vma_lock);
vfio_uninit_group_dev(&vdev->vdev);
kfree(vdev->region);
kfree(vdev->pm_save);
}
EXPORT_SYMBOL_GPL(vfio_pci_core_uninit_device);
int vfio_pci_core_register_device(struct vfio_pci_core_device *vdev)
{
struct pci_dev *pdev = vdev->pdev;

4
include/linux/vfio_pci_core.h
View File

@ -106,13 +106,9 @@ int vfio_pci_core_register_dev_region(struct vfio_pci_core_device *vdev,
void vfio_pci_core_set_params(bool nointxmask, bool is_disable_vga,
bool is_disable_idle_d3);
void vfio_pci_core_close_device(struct vfio_device *core_vdev);
void vfio_pci_core_init_device(struct vfio_pci_core_device *vdev,
struct pci_dev *pdev,
const struct vfio_device_ops *vfio_pci_ops);
int vfio_pci_core_init_dev(struct vfio_device *core_vdev);
void vfio_pci_core_release_dev(struct vfio_device *core_vdev);
int vfio_pci_core_register_device(struct vfio_pci_core_device *vdev);
void vfio_pci_core_uninit_device(struct vfio_pci_core_device *vdev);
void vfio_pci_core_unregister_device(struct vfio_pci_core_device *vdev);
extern const struct pci_error_handlers vfio_pci_core_err_handlers;
int vfio_pci_core_sriov_configure(struct vfio_pci_core_device *vdev,