diff options
Diffstat (limited to 'drivers/vdpa/pds/vdpa_dev.h')
| -rw-r--r-- | drivers/vdpa/pds/vdpa_dev.h | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/drivers/vdpa/pds/vdpa_dev.h b/drivers/vdpa/pds/vdpa_dev.h new file mode 100644 index 000000000000..a1bc37de9537 --- /dev/null +++ b/drivers/vdpa/pds/vdpa_dev.h @@ -0,0 +1,49 @@ +/* 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; /* specified device features */ + u64 req_features; /* features requested by vdpa */ + u8 vdpa_index; /* rsvd for future subdevice use */ + u8 num_vqs; /* num vqs in use */ + struct vdpa_callback config_cb; + struct notifier_block nb; +}; + +#define PDS_VDPA_PACKED_INVERT_IDX 0x8000 + +int pds_vdpa_get_mgmt_info(struct pds_vdpa_aux *vdpa_aux); +#endif /* _VDPA_DEV_H_ */ |