+clib_error_t *
+vlib_pci_device_open (vlib_pci_addr_t * addr,
+ pci_device_id_t ids[], vlib_pci_dev_handle_t * handle)
+{
+ linux_pci_main_t *lpm = &linux_pci_main;
+ vlib_pci_device_info_t *di;
+ linux_pci_device_t *p;
+ clib_error_t *err = 0;
+ pci_device_id_t *i;
+
+ di = vlib_pci_get_device_info (addr, &err);
+
+ if (err)
+ return err;
+ for (i = ids; i->vendor_id != 0; i++)
+ if (i->vendor_id == di->vendor_id && i->device_id == di->device_id)
+ break;
+
+ if (i->vendor_id == 0)
+ return clib_error_return (0, "Wrong vendor or device id");
+
+ pool_get (lpm->linux_pci_devices, p);
+ p->handle = p - lpm->linux_pci_devices;
+ p->intx_irq.fd = -1;
+
+ if (di->iommu_group != -1)
+ err = add_device_vfio (p, di, 0);
+ else
+ err = add_device_uio (p, di, 0);
+ if (err)
+ goto error;
+
+ *handle = p->handle;
+
+error:
+ vlib_pci_free_device_info (di);
+ if (err)
+ {
+ memset (p, 0, sizeof (linux_pci_device_t));
+ pool_put (lpm->linux_pci_devices, p);
+ }
+
+ return err;
+}
+
+void
+vlib_pci_device_close (vlib_pci_dev_handle_t h)
+{
+ linux_pci_main_t *lpm = &linux_pci_main;
+ linux_pci_device_t *p = linux_pci_get_device (h);
+ linux_pci_irq_t *irq;
+ linux_pci_region_t *res;
+ clib_error_t *err = 0;
+
+ if (p->type == LINUX_PCI_DEVICE_TYPE_UIO)
+ {
+ irq = &p->intx_irq;
+ clib_file_del_by_index (&file_main, irq->clib_file_index);
+ close (p->config_fd);
+ }
+ else if (p->type == LINUX_PCI_DEVICE_TYPE_VFIO)
+ {
+ irq = &p->intx_irq;
+ /* close INTx irqs */
+ if (irq->fd != -1)
+ {
+ err = vfio_set_irqs (p, VFIO_PCI_INTX_IRQ_INDEX, 0, 0,
+ VFIO_IRQ_SET_ACTION_TRIGGER, 0);
+ clib_error_free (err);
+ clib_file_del_by_index (&file_main, irq->clib_file_index);
+ close (irq->fd);
+ }
+
+ /* close MSI-X irqs */
+ if (vec_len (p->msix_irqs))
+ {
+ err = vfio_set_irqs (p, VFIO_PCI_MSIX_IRQ_INDEX, 0, 0,
+ VFIO_IRQ_SET_ACTION_TRIGGER, 0);
+ clib_error_free (err);
+ /* *INDENT-OFF* */
+ vec_foreach (irq, p->msix_irqs)
+ {
+ if (irq->fd == -1)
+ continue;
+ clib_file_del_by_index (&file_main, irq->clib_file_index);
+ close (irq->fd);
+ }
+ /* *INDENT-ON* */
+ vec_free (p->msix_irqs);
+ }
+ }
+
+ /* *INDENT-OFF* */
+ vec_foreach (res, p->regions)
+ {
+ if (res->size == 0)
+ continue;
+ munmap (res->addr, res->size);
+ if (res->fd != -1)
+ close (res->fd);
+ }
+ /* *INDENT-ON* */
+ vec_free (p->regions);
+
+ close (p->fd);
+ memset (p, 0, sizeof (linux_pci_device_t));
+ pool_put (lpm->linux_pci_devices, p);
+}
+