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/*-
* BSD LICENSE
*
* Copyright (c) Intel Corporation.
* 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 SPDK_ENV_INTERNAL_H
#define SPDK_ENV_INTERNAL_H
#include "spdk/stdinc.h"
#include "spdk/env.h"
#include <rte_config.h>
#include <rte_version.h>
#include <rte_eal.h>
#include <rte_bus.h>
#include <rte_pci.h>
#include <rte_bus_pci.h>
#include <rte_dev.h>
#if RTE_VERSION < RTE_VERSION_NUM(18, 11, 0, 0)
#error RTE_VERSION is too old! Minimum 18.11 is required.
#endif
/* x86-64 and ARM userspace virtual addresses use only the low 48 bits [0..47],
* which is enough to cover 256 TB.
*/
#define SHIFT_256TB 48 /* (1 << 48) == 256 TB */
#define MASK_256TB ((1ULL << SHIFT_256TB) - 1)
#define SHIFT_1GB 30 /* (1 << 30) == 1 GB */
#define MASK_1GB ((1ULL << SHIFT_1GB) - 1)
#define SPDK_PCI_DRIVER_MAX_NAME_LEN 32
struct spdk_pci_driver {
struct rte_pci_driver driver;
const char *name;
const struct spdk_pci_id *id_table;
uint32_t drv_flags;
spdk_pci_enum_cb cb_fn;
void *cb_arg;
TAILQ_ENTRY(spdk_pci_driver) tailq;
};
int pci_device_init(struct rte_pci_driver *driver, struct rte_pci_device *device);
int pci_device_fini(struct rte_pci_device *device);
void pci_env_init(void);
void pci_env_reinit(void);
void pci_env_fini(void);
int mem_map_init(bool legacy_mem);
int vtophys_init(void);
/**
* Report a DMA-capable PCI device to the vtophys translation code.
* Increases the refcount of active DMA-capable devices managed by SPDK.
* This must be called after a `rte_pci_device` is created.
*/
void vtophys_pci_device_added(struct rte_pci_device *pci_device);
/**
* Report the removal of a DMA-capable PCI device to the vtophys translation code.
* Decreases the refcount of active DMA-capable devices managed by SPDK.
* This must be called before a `rte_pci_device` is destroyed.
*/
void vtophys_pci_device_removed(struct rte_pci_device *pci_device);
#endif
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