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_crypto.h> 12 #include <uapi/linux/virtio_net.h> 13 #include <uapi/linux/virtio_blk.h> 14 #include <uapi/linux/virtio_config.h> 15 #include <uapi/linux/virtio_pci.h> 16 #include <uapi/linux/vdpa.h> 17 18 #define OCTEP_VDPA_DEVID_CN106K_PF 0xb900 19 #define OCTEP_VDPA_DEVID_CN106K_VF 0xb903 20 #define OCTEP_VDPA_DEVID_CN105K_PF 0xba00 21 #define OCTEP_VDPA_DEVID_CN105K_VF 0xba03 22 #define OCTEP_VDPA_DEVID_CN103K_PF 0xbd00 23 #define OCTEP_VDPA_DEVID_CN103K_VF 0xbd03 24 25 #define OCTEP_HW_MBOX_BAR 0 26 #define OCTEP_HW_CAPS_BAR 4 27 28 #define OCTEP_DEV_READY_SIGNATURE 0xBABABABA 29 30 #define OCTEP_EPF_RINFO(x) (0x000209f0 | ((x) << 25)) 31 #define OCTEP_VF_MBOX_DATA(x) (0x00010210 | ((x) << 17)) 32 #define OCTEP_PF_MBOX_DATA(x) (0x00022000 | ((x) << 4)) 33 #define OCTEP_VF_IN_CTRL(x) (0x00010000 | ((x) << 17)) 34 #define OCTEP_VF_IN_CTRL_RPVF(val) (((val) >> 48) & 0xF) 35 36 #define OCTEP_FW_READY_SIGNATURE0 0xFEEDFEED 37 #define OCTEP_FW_READY_SIGNATURE1 0x3355ffaa 38 #define OCTEP_MAX_CB_INTR 8 39 40 enum octep_vdpa_dev_status { 41 OCTEP_VDPA_DEV_STATUS_INVALID, 42 OCTEP_VDPA_DEV_STATUS_ALLOC, 43 OCTEP_VDPA_DEV_STATUS_WAIT_FOR_BAR_INIT, 44 OCTEP_VDPA_DEV_STATUS_INIT, 45 OCTEP_VDPA_DEV_STATUS_READY, 46 OCTEP_VDPA_DEV_STATUS_UNINIT 47 }; 48 49 struct octep_vring_info { 50 struct vdpa_callback cb; 51 void __iomem *notify_addr; 52 void __iomem *cb_notify_addr; 53 phys_addr_t notify_pa; 54 }; 55 56 enum octep_pci_vndr_cfg_type { 57 OCTEP_PCI_VNDR_CFG_TYPE_VIRTIO_ID, 58 OCTEP_PCI_VNDR_CFG_TYPE_MAX, 59 }; 60 61 struct octep_pci_vndr_data { 62 struct virtio_pci_vndr_data hdr; 63 u8 id; 64 u8 bar; 65 union { 66 u64 data; 67 struct { 68 u32 offset; 69 u32 length; 70 }; 71 }; 72 }; 73 74 struct octep_hw { 75 struct pci_dev *pdev; 76 u8 __iomem *base[PCI_STD_NUM_BARS]; 77 struct virtio_pci_common_cfg __iomem *common_cfg; 78 u8 __iomem *dev_cfg; 79 u8 __iomem *isr; 80 void __iomem *notify_base; 81 phys_addr_t notify_base_pa; 82 u32 notify_off_multiplier; 83 u8 notify_bar; 84 struct octep_vring_info *vqs; 85 struct vdpa_callback config_cb; 86 u64 features; 87 u16 nr_vring; 88 u32 config_size; 89 int nb_irqs; 90 int *irqs; 91 u8 dev_id; 92 }; 93 94 u8 octep_hw_get_status(struct octep_hw *oct_hw); 95 void octep_hw_set_status(struct octep_hw *dev, uint8_t status); 96 void octep_hw_reset(struct octep_hw *oct_hw); 97 void octep_write_queue_select(struct octep_hw *oct_hw, u16 queue_id); 98 void octep_notify_queue(struct octep_hw *oct_hw, u16 qid); 99 void octep_read_dev_config(struct octep_hw *oct_hw, u64 offset, void *dst, int length); 100 int octep_set_vq_address(struct octep_hw *oct_hw, u16 qid, u64 desc_area, u64 driver_area, 101 u64 device_area); 102 void octep_set_vq_num(struct octep_hw *oct_hw, u16 qid, u32 num); 103 void octep_set_vq_ready(struct octep_hw *oct_hw, u16 qid, bool ready); 104 bool octep_get_vq_ready(struct octep_hw *oct_hw, u16 qid); 105 int octep_set_vq_state(struct octep_hw *oct_hw, u16 qid, const struct vdpa_vq_state *state); 106 int octep_get_vq_state(struct octep_hw *oct_hw, u16 qid, struct vdpa_vq_state *state); 107 u16 octep_get_vq_size(struct octep_hw *oct_hw); 108 int octep_hw_caps_read(struct octep_hw *oct_hw, struct pci_dev *pdev); 109 u64 octep_hw_get_dev_features(struct octep_hw *oct_hw); 110 void octep_hw_set_drv_features(struct octep_hw *oct_hw, u64 features); 111 u64 octep_hw_get_drv_features(struct octep_hw *oct_hw); 112 int octep_verify_features(u64 features); 113 114 #endif /* __OCTEP_VDPA_H__ */ 115