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