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1/* SPDX-License-Identifier: GPL-2.0-only */2/* Copyright(c) 2023 Advanced Micro Devices, Inc */3 4#ifndef _VDPA_DEV_H_5#define _VDPA_DEV_H_6 7#include <linux/pci.h>8#include <linux/vdpa.h>9 10struct pds_vdpa_vq_info {11 bool ready;12 u64 desc_addr;13 u64 avail_addr;14 u64 used_addr;15 u32 q_len;16 u16 qid;17 int irq;18 char irq_name[32];19 20 void __iomem *notify;21 dma_addr_t notify_pa;22 23 u64 doorbell;24 u16 avail_idx;25 u16 used_idx;26 27 struct vdpa_callback event_cb;28 struct pds_vdpa_device *pdsv;29};30 31#define PDS_VDPA_MAX_QUEUES 6532#define PDS_VDPA_MAX_QLEN 3276833struct pds_vdpa_device {34 struct vdpa_device vdpa_dev;35 struct pds_vdpa_aux *vdpa_aux;36 37 struct pds_vdpa_vq_info vqs[PDS_VDPA_MAX_QUEUES];38 u64 supported_features; /* supported device features */39 u64 negotiated_features; /* negotiated features */40 u8 vdpa_index; /* rsvd for future subdevice use */41 u8 num_vqs; /* num vqs in use */42 u8 mac[ETH_ALEN]; /* mac selected when the device was added */43 struct vdpa_callback config_cb;44 struct notifier_block nb;45};46 47#define PDS_VDPA_PACKED_INVERT_IDX 0x800048 49void pds_vdpa_release_irqs(struct pds_vdpa_device *pdsv);50int pds_vdpa_get_mgmt_info(struct pds_vdpa_aux *vdpa_aux);51#endif /* _VDPA_DEV_H_ */52