9b957f378a
The patch consolidates below functions, and implement these in eal_common_pci_uio.c. - pci_uio_map_secondary() - pci_uio_map_resource() - pci_uio_unmap() - pci_uio_find_resource() - pci_uio_unmap_resource() Signed-off-by: Tetsuya Mukawa <mukawa@igel.co.jp> Acked-by: David Marchand <david.marchand@6wind.com>
101 lines
3.3 KiB
C
101 lines
3.3 KiB
C
/*-
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* BSD LICENSE
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*
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* Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef EAL_PCI_INIT_H_
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#define EAL_PCI_INIT_H_
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#include "eal_vfio.h"
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/*
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* Helper function to map PCI resources right after hugepages in virtual memory
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*/
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extern void *pci_map_addr;
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void *pci_find_max_end_va(void);
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int pci_uio_alloc_resource(struct rte_pci_device *dev,
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struct mapped_pci_resource **uio_res);
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void pci_uio_free_resource(struct rte_pci_device *dev,
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struct mapped_pci_resource *uio_res);
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int pci_uio_map_resource_by_index(struct rte_pci_device *dev, int res_idx,
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struct mapped_pci_resource *uio_res, int map_idx);
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#ifdef VFIO_PRESENT
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#define VFIO_MAX_GROUPS 64
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int pci_vfio_enable(void);
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int pci_vfio_is_enabled(void);
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int pci_vfio_mp_sync_setup(void);
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/* map VFIO resource prototype */
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int pci_vfio_map_resource(struct rte_pci_device *dev);
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int pci_vfio_get_group_fd(int iommu_group_fd);
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int pci_vfio_get_container_fd(void);
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/*
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* Function prototypes for VFIO multiprocess sync functions
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*/
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int vfio_mp_sync_send_request(int socket, int req);
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int vfio_mp_sync_receive_request(int socket);
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int vfio_mp_sync_send_fd(int socket, int fd);
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int vfio_mp_sync_receive_fd(int socket);
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int vfio_mp_sync_connect_to_primary(void);
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/* socket comm protocol definitions */
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#define SOCKET_REQ_CONTAINER 0x100
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#define SOCKET_REQ_GROUP 0x200
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#define SOCKET_OK 0x0
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#define SOCKET_NO_FD 0x1
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#define SOCKET_ERR 0xFF
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/*
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* we don't need to store device fd's anywhere since they can be obtained from
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* the group fd via an ioctl() call.
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*/
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struct vfio_group {
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int group_no;
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int fd;
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};
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struct vfio_config {
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int vfio_enabled;
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int vfio_container_fd;
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int vfio_container_has_dma;
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int vfio_group_idx;
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struct vfio_group vfio_groups[VFIO_MAX_GROUPS];
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};
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#endif
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#endif /* EAL_PCI_INIT_H_ */
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