Spdk/include/spdk/vmd.h

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/** \file
 * VMD driver public interface
 */

#ifndef SPDK_VMD_H
#define SPDK_VMD_H

#include "spdk/stdinc.h"

#ifdef __cplusplus
extern "C" {
#endif

#include "spdk/config.h"
#include "spdk/env.h"

/* Maximum VMD devices - up to 6 per cpu */
#define MAX_VMD_TARGET  24

/*
 * Enumerate VMD devices and hook them into the spdk pci subsystem
 *
 * \return 0 on success, -1 on failure
 */
int spdk_vmd_init(void);

/*
 * Returns a list of nvme devices found on the given vmd pci BDF.
 *
 * \param vmd_addr pci BDF of the vmd device to return end device list
 * \param nvme_list buffer of exactly MAX_VMD_TARGET to return spdk_pci_device array.
 *
 * \return Returns count of nvme device attached to input VMD.
 */
int spdk_vmd_pci_device_list(struct spdk_pci_addr vmd_addr, struct spdk_pci_device *nvme_list);

#ifdef __cplusplus
}
#endif

#endif /* SPDK_VMD_H */