diff options
Diffstat (limited to 'drivers/vdpa/octeon_ep/octep_vdpa.h')
| -rw-r--r-- | drivers/vdpa/octeon_ep/octep_vdpa.h | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/drivers/vdpa/octeon_ep/octep_vdpa.h b/drivers/vdpa/octeon_ep/octep_vdpa.h new file mode 100644 index 000000000000..046710ec4d42 --- /dev/null +++ b/drivers/vdpa/octeon_ep/octep_vdpa.h @@ -0,0 +1,94 @@ +/* SPDX-License-Identifier: GPL-2.0-only + * Copyright (C) 2024 Marvell. + */ +#ifndef __OCTEP_VDPA_H__ +#define __OCTEP_VDPA_H__ + +#include <linux/pci.h> +#include <linux/pci_regs.h> +#include <linux/vdpa.h> +#include <linux/virtio_pci_modern.h> +#include <uapi/linux/virtio_net.h> +#include <uapi/linux/virtio_blk.h> +#include <uapi/linux/virtio_config.h> +#include <uapi/linux/virtio_pci.h> +#include <uapi/linux/vdpa.h> + +#define OCTEP_VDPA_DEVID_CN106K_PF 0xb900 +#define OCTEP_VDPA_DEVID_CN106K_VF 0xb903 +#define OCTEP_VDPA_DEVID_CN105K_PF 0xba00 +#define OCTEP_VDPA_DEVID_CN105K_VF 0xba03 +#define OCTEP_VDPA_DEVID_CN103K_PF 0xbd00 +#define OCTEP_VDPA_DEVID_CN103K_VF 0xbd03 + +#define OCTEP_HW_MBOX_BAR 0 +#define OCTEP_HW_CAPS_BAR 4 + +#define OCTEP_DEV_READY_SIGNATURE 0xBABABABA + +#define OCTEP_EPF_RINFO(x) (0x000209f0 | ((x) << 25)) +#define OCTEP_VF_MBOX_DATA(x) (0x00010210 | ((x) << 17)) +#define OCTEP_PF_MBOX_DATA(x) (0x00022000 | ((x) << 4)) + +#define OCTEP_EPF_RINFO_RPVF(val) (((val) >> 32) & 0xF) +#define OCTEP_EPF_RINFO_NVFS(val) (((val) >> 48) & 0x7F) + +#define OCTEP_FW_READY_SIGNATURE0 0xFEEDFEED +#define OCTEP_FW_READY_SIGNATURE1 0x3355ffaa + +enum octep_vdpa_dev_status { + OCTEP_VDPA_DEV_STATUS_INVALID, + OCTEP_VDPA_DEV_STATUS_ALLOC, + OCTEP_VDPA_DEV_STATUS_WAIT_FOR_BAR_INIT, + OCTEP_VDPA_DEV_STATUS_INIT, + OCTEP_VDPA_DEV_STATUS_READY, + OCTEP_VDPA_DEV_STATUS_UNINIT +}; + +struct octep_vring_info { + struct vdpa_callback cb; + void __iomem *notify_addr; + u32 __iomem *cb_notify_addr; + phys_addr_t notify_pa; + char msix_name[256]; +}; + +struct octep_hw { + struct pci_dev *pdev; + u8 __iomem *base[PCI_STD_NUM_BARS]; + struct virtio_pci_common_cfg __iomem *common_cfg; + u8 __iomem *dev_cfg; + u8 __iomem *isr; + void __iomem *notify_base; + phys_addr_t notify_base_pa; + u32 notify_off_multiplier; + u8 notify_bar; + struct octep_vring_info *vqs; + struct vdpa_callback config_cb; + u64 features; + u16 nr_vring; + u32 config_size; + int irq; +}; + +u8 octep_hw_get_status(struct octep_hw *oct_hw); +void octep_hw_set_status(struct octep_hw *dev, uint8_t status); +void octep_hw_reset(struct octep_hw *oct_hw); +void octep_write_queue_select(struct octep_hw *oct_hw, u16 queue_id); +void octep_notify_queue(struct octep_hw *oct_hw, u16 qid); +void octep_read_dev_config(struct octep_hw *oct_hw, u64 offset, void *dst, int length); +int octep_set_vq_address(struct octep_hw *oct_hw, u16 qid, u64 desc_area, u64 driver_area, + u64 device_area); +void octep_set_vq_num(struct octep_hw *oct_hw, u16 qid, u32 num); +void octep_set_vq_ready(struct octep_hw *oct_hw, u16 qid, bool ready); +bool octep_get_vq_ready(struct octep_hw *oct_hw, u16 qid); +int octep_set_vq_state(struct octep_hw *oct_hw, u16 qid, const struct vdpa_vq_state *state); +int octep_get_vq_state(struct octep_hw *oct_hw, u16 qid, struct vdpa_vq_state *state); +u16 octep_get_vq_size(struct octep_hw *oct_hw); +int octep_hw_caps_read(struct octep_hw *oct_hw, struct pci_dev *pdev); +u64 octep_hw_get_dev_features(struct octep_hw *oct_hw); +void octep_hw_set_drv_features(struct octep_hw *oct_hw, u64 features); +u64 octep_hw_get_drv_features(struct octep_hw *oct_hw); +int octep_verify_features(u64 features); + +#endif /* __OCTEP_VDPA_H__ */ |