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