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/* SPDX-License-Identifier: GPL-2.0-only */
/* Copyright(c) 2023 Advanced Micro Devices, Inc */
#ifndef _VDPA_DEV_H_
#define _VDPA_DEV_H_
#include <linux/pci.h>
#include <linux/vdpa.h>
struct pds_vdpa_vq_info {
bool ready;
u64 desc_addr;
u64 avail_addr;
u64 used_addr;
u32 q_len;
u16 qid;
int irq;
char irq_name[32];
void __iomem *notify;
dma_addr_t notify_pa;
u64 doorbell;
u16 avail_idx;
u16 used_idx;
struct vdpa_callback event_cb;
struct pds_vdpa_device *pdsv;
};
#define PDS_VDPA_MAX_QUEUES 65
#define PDS_VDPA_MAX_QLEN 32768
struct pds_vdpa_device {
struct vdpa_device vdpa_dev;
struct pds_vdpa_aux *vdpa_aux;
struct pds_vdpa_vq_info vqs[PDS_VDPA_MAX_QUEUES];
u64 supported_features; /* supported device features */
u64 negotiated_features; /* negotiated features */
u8 vdpa_index; /* rsvd for future subdevice use */
u8 num_vqs; /* num vqs in use */
u8 mac[ETH_ALEN]; /* mac selected when the device was added */
struct vdpa_callback config_cb;
struct notifier_block nb;
};
#define PDS_VDPA_PACKED_INVERT_IDX 0x8000
void pds_vdpa_release_irqs(struct pds_vdpa_device *pdsv);
int pds_vdpa_get_mgmt_info(struct pds_vdpa_aux *vdpa_aux);
#endif /* _VDPA_DEV_H_ */
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