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vfio: add a vfio_ prefix to virqfd_enable and virqfd_disable and export 

We want to reuse virqfd functionality in multiple VFIO drivers; before
moving these functions to core VFIO, add the vfio_ prefix to the
virqfd_enable and virqfd_disable functions, and export them so they can
be used from other modules.

Signed-off-by: Antonios Motakis <a.motakis@virtualopensystems.com>
Signed-off-by: Baptiste Reynal <b.reynal@virtualopensystems.com>
Reviewed-by: Eric Auger <eric.auger@linaro.org>
Tested-by: Eric Auger <eric.auger@linaro.org>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
This commit is contained in:
Antonios Motakis 2015-03-16 14:08:51 -06:00 committed by Alex Williamson
parent 06211b40ce
commit bdc5e1021b
1 changed files with 16 additions and 14 deletions
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30
drivers/vfio/pci/vfio_pci_intrs.c
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@ -126,10 +126,10 @@ static void virqfd_inject(struct work_struct *work)
virqfd->thread(virqfd->vdev, virqfd->data);
}
static int virqfd_enable(struct vfio_pci_device *vdev,
int (*handler)(struct vfio_pci_device *, void *),
void (*thread)(struct vfio_pci_device *, void *),
void *data, struct virqfd **pvirqfd, int fd)
int vfio_virqfd_enable(struct vfio_pci_device *vdev,
int (*handler)(struct vfio_pci_device *, void *),
void (*thread)(struct vfio_pci_device *, void *),
void *data, struct virqfd **pvirqfd, int fd)
{
struct fd irqfd;
struct eventfd_ctx *ctx;
@ -215,9 +215,9 @@ err_fd:
return ret;
}
EXPORT_SYMBOL_GPL(vfio_virqfd_enable);
static void virqfd_disable(struct vfio_pci_device *vdev,
struct virqfd **pvirqfd)
void vfio_virqfd_disable(struct vfio_pci_device *vdev, struct virqfd **pvirqfd)
{
unsigned long flags;
@ -237,6 +237,7 @@ static void virqfd_disable(struct vfio_pci_device *vdev,
*/
flush_workqueue(vfio_irqfd_cleanup_wq);
}
EXPORT_SYMBOL_GPL(vfio_virqfd_disable);
/*
* INTx
@ -440,8 +441,8 @@ static int vfio_intx_set_signal(struct vfio_pci_device *vdev, int fd)
static void vfio_intx_disable(struct vfio_pci_device *vdev)
{
vfio_intx_set_signal(vdev, -1);
virqfd_disable(vdev, &vdev->ctx[0].unmask);
virqfd_disable(vdev, &vdev->ctx[0].mask);
vfio_virqfd_disable(vdev, &vdev->ctx[0].unmask);
vfio_virqfd_disable(vdev, &vdev->ctx[0].mask);
vdev->irq_type = VFIO_PCI_NUM_IRQS;
vdev->num_ctx = 0;
kfree(vdev->ctx);
@ -605,8 +606,8 @@ static void vfio_msi_disable(struct vfio_pci_device *vdev, bool msix)
vfio_msi_set_block(vdev, 0, vdev->num_ctx, NULL, msix);
for (i = 0; i < vdev->num_ctx; i++) {
virqfd_disable(vdev, &vdev->ctx[i].unmask);
virqfd_disable(vdev, &vdev->ctx[i].mask);
vfio_virqfd_disable(vdev, &vdev->ctx[i].unmask);
vfio_virqfd_disable(vdev, &vdev->ctx[i].mask);
}
if (msix) {
@ -639,11 +640,12 @@ static int vfio_pci_set_intx_unmask(struct vfio_pci_device *vdev,
} else if (flags & VFIO_IRQ_SET_DATA_EVENTFD) {
int32_t fd = *(int32_t *)data;
if (fd >= 0)
return virqfd_enable(vdev, vfio_pci_intx_unmask_handler,
vfio_send_intx_eventfd, NULL,
&vdev->ctx[0].unmask, fd);
return vfio_virqfd_enable(vdev,
vfio_pci_intx_unmask_handler,
vfio_send_intx_eventfd, NULL,
&vdev->ctx[0].unmask, fd);
virqfd_disable(vdev, &vdev->ctx[0].unmask);
vfio_virqfd_disable(vdev, &vdev->ctx[0].unmask);
}
return 0;