1 /* SPDX-License-Identifier: GPL-2.0-only 2 * Copyright (C) 2024 Marvell. 3 */ 4 #ifndef __OCTEP_VDPA_H__ 5 #define __OCTEP_VDPA_H__ 6 7 #include <linux/pci.h> 8 #include <linux/pci_regs.h> 9 #include <linux/vdpa.h> 10 #include <linux/virtio_pci_modern.h> 11 #include <uapi/linux/virtio_net.h> 12 #include <uapi/linux/virtio_blk.h> 13 #include <uapi/linux/virtio_config.h> 14 #include <uapi/linux/virtio_pci.h> 15 #include <uapi/linux/vdpa.h> 16 17 #define OCTEP_VDPA_DEVID_CN106K_PF 0xb900 18 #define OCTEP_VDPA_DEVID_CN106K_VF 0xb903 19 #define OCTEP_VDPA_DEVID_CN105K_PF 0xba00 20 #define OCTEP_VDPA_DEVID_CN105K_VF 0xba03 21 #define OCTEP_VDPA_DEVID_CN103K_PF 0xbd00 22 #define OCTEP_VDPA_DEVID_CN103K_VF 0xbd03 23 24 #define OCTEP_HW_MBOX_BAR 0 25 #define OCTEP_HW_CAPS_BAR 4 26 27 #define OCTEP_DEV_READY_SIGNATURE 0xBABABABA 28 29 #define OCTEP_EPF_RINFO(x) (0x000209f0 | ((x) << 25)) 30 #define OCTEP_VF_MBOX_DATA(x) (0x00010210 | ((x) << 17)) 31 #define OCTEP_PF_MBOX_DATA(x) (0x00022000 | ((x) << 4)) 32 33 #define OCTEP_EPF_RINFO_RPVF(val) (((val) >> 32) & 0xF) 34 #define OCTEP_EPF_RINFO_NVFS(val) (((val) >> 48) & 0x7F) 35 36 #define OCTEP_FW_READY_SIGNATURE0 0xFEEDFEED 37 #define OCTEP_FW_READY_SIGNATURE1 0x3355ffaa 38 39 enum octep_vdpa_dev_status { 40 OCTEP_VDPA_DEV_STATUS_INVALID, 41 OCTEP_VDPA_DEV_STATUS_ALLOC, 42 OCTEP_VDPA_DEV_STATUS_WAIT_FOR_BAR_INIT, 43 OCTEP_VDPA_DEV_STATUS_INIT, 44 OCTEP_VDPA_DEV_STATUS_READY, 45 OCTEP_VDPA_DEV_STATUS_UNINIT 46 }; 47 48 struct octep_vring_info { 49 struct vdpa_callback cb; 50 void __iomem *notify_addr; 51 u32 __iomem *cb_notify_addr; 52 phys_addr_t notify_pa; 53 char msix_name[256]; 54 }; 55 56 struct octep_hw { 57 struct pci_dev *pdev; 58 u8 __iomem *base[PCI_STD_NUM_BARS]; 59 struct virtio_pci_common_cfg __iomem *common_cfg; 60 u8 __iomem *dev_cfg; 61 u8 __iomem *isr; 62 void __iomem *notify_base; 63 phys_addr_t notify_base_pa; 64 u32 notify_off_multiplier; 65 u8 notify_bar; 66 struct octep_vring_info *vqs; 67 struct vdpa_callback config_cb; 68 u64 features; 69 u16 nr_vring; 70 u32 config_size; 71 int irq; 72 }; 73 74 u8 octep_hw_get_status(struct octep_hw *oct_hw); 75 void octep_hw_set_status(struct octep_hw *dev, uint8_t status); 76 void octep_hw_reset(struct octep_hw *oct_hw); 77 void octep_write_queue_select(struct octep_hw *oct_hw, u16 queue_id); 78 void octep_notify_queue(struct octep_hw *oct_hw, u16 qid); 79 void octep_read_dev_config(struct octep_hw *oct_hw, u64 offset, void *dst, int length); 80 int octep_set_vq_address(struct octep_hw *oct_hw, u16 qid, u64 desc_area, u64 driver_area, 81 u64 device_area); 82 void octep_set_vq_num(struct octep_hw *oct_hw, u16 qid, u32 num); 83 void octep_set_vq_ready(struct octep_hw *oct_hw, u16 qid, bool ready); 84 bool octep_get_vq_ready(struct octep_hw *oct_hw, u16 qid); 85 int octep_set_vq_state(struct octep_hw *oct_hw, u16 qid, const struct vdpa_vq_state *state); 86 int octep_get_vq_state(struct octep_hw *oct_hw, u16 qid, struct vdpa_vq_state *state); 87 u16 octep_get_vq_size(struct octep_hw *oct_hw); 88 int octep_hw_caps_read(struct octep_hw *oct_hw, struct pci_dev *pdev); 89 u64 octep_hw_get_dev_features(struct octep_hw *oct_hw); 90 void octep_hw_set_drv_features(struct octep_hw *oct_hw, u64 features); 91 u64 octep_hw_get_drv_features(struct octep_hw *oct_hw); 92 int octep_verify_features(u64 features); 93 94 #endif /* __OCTEP_VDPA_H__ */ 95