mirror of https://github.com/F-Stack/f-stack.git
97 lines
3.8 KiB
C
97 lines
3.8 KiB
C
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/*-
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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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/** IO resource type: */
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#define IORESOURCE_IO 0x00000100
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#define IORESOURCE_MEM 0x00000200
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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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/* parse one line of the "resource" sysfs file (note that the 'line'
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* string is modified)
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*/
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int pci_parse_one_sysfs_resource(char *line, size_t len, uint64_t *phys_addr,
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uint64_t *end_addr, uint64_t *flags);
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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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int pci_uio_read_config(const struct rte_intr_handle *intr_handle,
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void *buf, size_t len, off_t offs);
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int pci_uio_write_config(const struct rte_intr_handle *intr_handle,
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const void *buf, size_t len, off_t offs);
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int pci_uio_ioport_map(struct rte_pci_device *dev, int bar,
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struct rte_pci_ioport *p);
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void pci_uio_ioport_read(struct rte_pci_ioport *p,
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void *data, size_t len, off_t offset);
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void pci_uio_ioport_write(struct rte_pci_ioport *p,
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const void *data, size_t len, off_t offset);
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int pci_uio_ioport_unmap(struct rte_pci_ioport *p);
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#ifdef VFIO_PRESENT
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/* access config space */
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int pci_vfio_read_config(const struct rte_intr_handle *intr_handle,
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void *buf, size_t len, off_t offs);
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int pci_vfio_write_config(const struct rte_intr_handle *intr_handle,
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const void *buf, size_t len, off_t offs);
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int pci_vfio_ioport_map(struct rte_pci_device *dev, int bar,
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struct rte_pci_ioport *p);
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void pci_vfio_ioport_read(struct rte_pci_ioport *p,
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void *data, size_t len, off_t offset);
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void pci_vfio_ioport_write(struct rte_pci_ioport *p,
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const void *data, size_t len, off_t offset);
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int pci_vfio_ioport_unmap(struct rte_pci_ioport *p);
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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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#endif
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#endif /* EAL_PCI_INIT_H_ */
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