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/* SPDX-License-Identifier: BSD-3-Clause
* Copyright (c) 2022 Red Hat, Inc.
*/
#ifndef DEV_DRIVER_H
#define DEV_DRIVER_H
#include <rte_common.h>
#include <rte_dev.h>
/**
* A structure describing a device driver.
*/
struct rte_driver {
RTE_TAILQ_ENTRY(rte_driver) next; /**< Next in list. */
const char *name; /**< Driver name. */
const char *alias; /**< Driver alias. */
};
/**
* A structure describing a generic device.
*/
struct rte_device {
RTE_TAILQ_ENTRY(rte_device) next; /**< Next device */
const char *name; /**< Device name */
const char *bus_info; /**< Device bus specific information */
const struct rte_driver *driver; /**< Driver assigned after probing */
const struct rte_bus *bus; /**< Bus handle assigned on scan */
int numa_node; /**< NUMA node connection */
struct rte_devargs *devargs; /**< Arguments for latest probing */
};
#ifdef RTE_TOOLCHAIN_MSVC
#define RTE_PMD_EXPORT_SYMBOL(type, name) \
__pragma(comment(linker, "/include:" RTE_STR(name))) type name
#else
#define RTE_PMD_EXPORT_SYMBOL(type, name) \
__attribute__((used)) type name
#endif
#define RTE_PMD_EXPORT_NAME(name) \
RTE_PMD_EXPORT_SYMBOL(const char, this_pmd_name ## name)[] = RTE_STR(name)
#define DRV_EXP_TAG(name, tag) __##name##_##tag
#define RTE_PMD_REGISTER_PCI_TABLE(name, table) \
RTE_PMD_EXPORT_SYMBOL(const char, DRV_EXP_TAG(name, pci_tbl_export))[] = RTE_STR(table)
#define RTE_PMD_REGISTER_PARAM_STRING(name, str) \
RTE_PMD_EXPORT_SYMBOL(const char, DRV_EXP_TAG(name, param_string_export))[] = str
/**
* Advertise the list of kernel modules required to run this driver
*
* This string lists the kernel modules required for the devices
* associated to a PMD. The format of each line of the string is:
* "<device-pattern> <kmod-expression>".
*
* The possible formats for the device pattern are:
* "*" all devices supported by this driver
* "pci:*" all PCI devices supported by this driver
* "pci:v8086:d*:sv*:sd*" all PCI devices supported by this driver
* whose vendor id is 0x8086.
*
* The format of the kernel modules list is a parenthesized expression
* containing logical-and (&) and logical-or (|).
*
* The device pattern and the kmod expression are separated by a space.
*
* Example:
* - "* igb_uio | uio_pci_generic | vfio"
*/
#define RTE_PMD_REGISTER_KMOD_DEP(name, str) \
RTE_PMD_EXPORT_SYMBOL(const char, DRV_EXP_TAG(name, kmod_dep_export))[] = str
#endif /* DEV_DRIVER_H */
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