| 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
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| 2 | /* Copyright(c) 2023 Advanced Micro Devices, Inc */ |
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| 3 | |
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| 4 | #ifndef _VDPA_DEV_H_ |
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| 5 | #define _VDPA_DEV_H_ |
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| 6 | |
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| 7 | #include <linux/pci.h> |
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| 8 | #include <linux/vdpa.h> |
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| 9 | |
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| 10 | struct pds_vdpa_vq_info { |
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| 11 | bool ready; |
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| 12 | u64 desc_addr; |
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| 13 | u64 avail_addr; |
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| 14 | u64 used_addr; |
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| 15 | u32 q_len; |
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| 16 | u16 qid; |
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| 17 | int irq; |
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| 18 | char irq_name[32]; |
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| 19 | |
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| 20 | void __iomem *notify; |
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| 21 | dma_addr_t notify_pa; |
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| 22 | |
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| 23 | u64 doorbell; |
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| 24 | u16 avail_idx; |
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| 25 | u16 used_idx; |
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| 26 | |
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| 27 | struct vdpa_callback event_cb; |
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| 28 | struct pds_vdpa_device *pdsv; |
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| 29 | }; |
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| 30 | |
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| 31 | #define PDS_VDPA_MAX_QUEUES 65 |
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| 32 | #define PDS_VDPA_MAX_QLEN 32768 |
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| 33 | struct pds_vdpa_device { |
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| 34 | struct vdpa_device vdpa_dev; |
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| 35 | struct pds_vdpa_aux *vdpa_aux; |
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| 36 | |
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| 37 | struct pds_vdpa_vq_info vqs[PDS_VDPA_MAX_QUEUES]; |
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| 38 | u64 supported_features; /* supported device features */ |
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| 39 | u64 negotiated_features; /* negotiated features */ |
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| 40 | u8 vdpa_index; /* rsvd for future subdevice use */ |
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| 41 | u8 num_vqs; /* num vqs in use */ |
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| 42 | u8 mac[ETH_ALEN]; /* mac selected when the device was added */ |
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| 43 | struct vdpa_callback config_cb; |
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| 44 | struct notifier_block nb; |
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| 45 | }; |
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| 46 | |
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| 47 | #define PDS_VDPA_PACKED_INVERT_IDX 0x8000 |
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| 48 | |
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| 49 | void pds_vdpa_release_irqs(struct pds_vdpa_device *pdsv); |
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| 50 | int pds_vdpa_get_mgmt_info(struct pds_vdpa_aux *vdpa_aux); |
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| 51 | #endif /* _VDPA_DEV_H_ */ |
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| 52 | |
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