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/*-
* BSD LICENSE
*
* Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef EAL_PCI_INIT_H_
#define EAL_PCI_INIT_H_
#include "eal_vfio.h"
/*
* Helper function to map PCI resources right after hugepages in virtual memory
*/
extern void *pci_map_addr;
void *pci_find_max_end_va(void);
int pci_uio_alloc_resource(struct rte_pci_device *dev,
struct mapped_pci_resource **uio_res);
void pci_uio_free_resource(struct rte_pci_device *dev,
struct mapped_pci_resource *uio_res);
int pci_uio_map_resource_by_index(struct rte_pci_device *dev, int res_idx,
struct mapped_pci_resource *uio_res, int map_idx);
int pci_uio_read_config(const struct rte_intr_handle *intr_handle,
void *buf, size_t len, off_t offs);
int pci_uio_write_config(const struct rte_intr_handle *intr_handle,
const void *buf, size_t len, off_t offs);
int pci_uio_ioport_map(struct rte_pci_device *dev, int bar,
struct rte_pci_ioport *p);
void pci_uio_ioport_read(struct rte_pci_ioport *p,
void *data, size_t len, off_t offset);
void pci_uio_ioport_write(struct rte_pci_ioport *p,
const void *data, size_t len, off_t offset);
int pci_uio_ioport_unmap(struct rte_pci_ioport *p);
#ifdef VFIO_PRESENT
#define VFIO_MAX_GROUPS 64
int pci_vfio_enable(void);
int pci_vfio_is_enabled(void);
int pci_vfio_mp_sync_setup(void);
/* access config space */
int pci_vfio_read_config(const struct rte_intr_handle *intr_handle,
void *buf, size_t len, off_t offs);
int pci_vfio_write_config(const struct rte_intr_handle *intr_handle,
const void *buf, size_t len, off_t offs);
int pci_vfio_ioport_map(struct rte_pci_device *dev, int bar,
struct rte_pci_ioport *p);
void pci_vfio_ioport_read(struct rte_pci_ioport *p,
void *data, size_t len, off_t offset);
void pci_vfio_ioport_write(struct rte_pci_ioport *p,
const void *data, size_t len, off_t offset);
int pci_vfio_ioport_unmap(struct rte_pci_ioport *p);
/* map VFIO resource prototype */
int pci_vfio_map_resource(struct rte_pci_device *dev);
int pci_vfio_get_group_fd(int iommu_group_fd);
int pci_vfio_get_container_fd(void);
/*
* Function prototypes for VFIO multiprocess sync functions
*/
int vfio_mp_sync_send_request(int socket, int req);
int vfio_mp_sync_receive_request(int socket);
int vfio_mp_sync_send_fd(int socket, int fd);
int vfio_mp_sync_receive_fd(int socket);
int vfio_mp_sync_connect_to_primary(void);
/* socket comm protocol definitions */
#define SOCKET_REQ_CONTAINER 0x100
#define SOCKET_REQ_GROUP 0x200
#define SOCKET_OK 0x0
#define SOCKET_NO_FD 0x1
#define SOCKET_ERR 0xFF
/*
* we don't need to store device fd's anywhere since they can be obtained from
* the group fd via an ioctl() call.
*/
struct vfio_group {
int group_no;
int fd;
};
struct vfio_config {
int vfio_enabled;
int vfio_container_fd;
int vfio_container_has_dma;
int vfio_group_idx;
struct vfio_group vfio_groups[VFIO_MAX_GROUPS];
};
#endif
#endif /* EAL_PCI_INIT_H_ */
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