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Linux/include/linux/virtio_pci_legacy.h

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  1 /* SPDX-License-Identifier: GPL-2.0 */
  2 #ifndef _LINUX_VIRTIO_PCI_LEGACY_H
  3 #define _LINUX_VIRTIO_PCI_LEGACY_H
  4 
  5 #include "linux/mod_devicetable.h"
  6 #include <linux/pci.h>
  7 #include <linux/virtio_pci.h>
  8 
  9 struct virtio_pci_legacy_device {
 10         struct pci_dev *pci_dev;
 11 
 12         /* Where to read and clear interrupt */
 13         u8 __iomem *isr;
 14         /* The IO mapping for the PCI config space (legacy mode only) */
 15         void __iomem *ioaddr;
 16 
 17         struct virtio_device_id id;
 18 };
 19 
 20 u64 vp_legacy_get_features(struct virtio_pci_legacy_device *ldev);
 21 u64 vp_legacy_get_driver_features(struct virtio_pci_legacy_device *ldev);
 22 void vp_legacy_set_features(struct virtio_pci_legacy_device *ldev,
 23                         u32 features);
 24 u8 vp_legacy_get_status(struct virtio_pci_legacy_device *ldev);
 25 void vp_legacy_set_status(struct virtio_pci_legacy_device *ldev,
 26                         u8 status);
 27 u16 vp_legacy_queue_vector(struct virtio_pci_legacy_device *ldev,
 28                            u16 idx, u16 vector);
 29 u16 vp_legacy_config_vector(struct virtio_pci_legacy_device *ldev,
 30                      u16 vector);
 31 void vp_legacy_set_queue_address(struct virtio_pci_legacy_device *ldev,
 32                              u16 index, u32 queue_pfn);
 33 bool vp_legacy_get_queue_enable(struct virtio_pci_legacy_device *ldev,
 34                                 u16 idx);
 35 u16 vp_legacy_get_queue_size(struct virtio_pci_legacy_device *ldev,
 36                              u16 idx);
 37 int vp_legacy_probe(struct virtio_pci_legacy_device *ldev);
 38 void vp_legacy_remove(struct virtio_pci_legacy_device *ldev);
 39 
 40 #endif
 41 

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