diff options
Diffstat (limited to 'drivers/net/ifc/base/ifcvf.h')
| -rw-r--r-- | drivers/net/ifc/base/ifcvf.h | 154 |
1 files changed, 154 insertions, 0 deletions
diff --git a/drivers/net/ifc/base/ifcvf.h b/drivers/net/ifc/base/ifcvf.h new file mode 100644 index 00000000..badacb61 --- /dev/null +++ b/drivers/net/ifc/base/ifcvf.h @@ -0,0 +1,154 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright(c) 2018 Intel Corporation + */ + +#ifndef _IFCVF_H_ +#define _IFCVF_H_ + +#include "ifcvf_osdep.h" + +#define IFCVF_VENDOR_ID 0x1AF4 +#define IFCVF_DEVICE_ID 0x1041 +#define IFCVF_SUBSYS_VENDOR_ID 0x8086 +#define IFCVF_SUBSYS_DEVICE_ID 0x001A + +#define IFCVF_MAX_QUEUES 1 +#define VIRTIO_F_IOMMU_PLATFORM 33 + +/* Common configuration */ +#define IFCVF_PCI_CAP_COMMON_CFG 1 +/* Notifications */ +#define IFCVF_PCI_CAP_NOTIFY_CFG 2 +/* ISR Status */ +#define IFCVF_PCI_CAP_ISR_CFG 3 +/* Device specific configuration */ +#define IFCVF_PCI_CAP_DEVICE_CFG 4 +/* PCI configuration access */ +#define IFCVF_PCI_CAP_PCI_CFG 5 + +#define IFCVF_CONFIG_STATUS_RESET 0x00 +#define IFCVF_CONFIG_STATUS_ACK 0x01 +#define IFCVF_CONFIG_STATUS_DRIVER 0x02 +#define IFCVF_CONFIG_STATUS_DRIVER_OK 0x04 +#define IFCVF_CONFIG_STATUS_FEATURES_OK 0x08 +#define IFCVF_CONFIG_STATUS_FAILED 0x80 + +#define IFCVF_MSI_NO_VECTOR 0xffff +#define IFCVF_PCI_MAX_RESOURCE 6 + +#define IFCVF_LM_CFG_SIZE 0x40 +#define IFCVF_LM_RING_STATE_OFFSET 0x20 + +#define IFCVF_LM_LOGGING_CTRL 0x0 + +#define IFCVF_LM_BASE_ADDR_LOW 0x10 +#define IFCVF_LM_BASE_ADDR_HIGH 0x14 +#define IFCVF_LM_END_ADDR_LOW 0x18 +#define IFCVF_LM_END_ADDR_HIGH 0x1c + +#define IFCVF_LM_DISABLE 0x0 +#define IFCVF_LM_ENABLE_VF 0x1 +#define IFCVF_LM_ENABLE_PF 0x3 + +#define IFCVF_32_BIT_MASK 0xffffffff + + +struct ifcvf_pci_cap { + u8 cap_vndr; /* Generic PCI field: PCI_CAP_ID_VNDR */ + u8 cap_next; /* Generic PCI field: next ptr. */ + u8 cap_len; /* Generic PCI field: capability length */ + u8 cfg_type; /* Identifies the structure. */ + u8 bar; /* Where to find it. */ + u8 padding[3]; /* Pad to full dword. */ + u32 offset; /* Offset within bar. */ + u32 length; /* Length of the structure, in bytes. */ +}; + +struct ifcvf_pci_notify_cap { + struct ifcvf_pci_cap cap; + u32 notify_off_multiplier; /* Multiplier for queue_notify_off. */ +}; + +struct ifcvf_pci_common_cfg { + /* About the whole device. */ + u32 device_feature_select; + u32 device_feature; + u32 guest_feature_select; + u32 guest_feature; + u16 msix_config; + u16 num_queues; + u8 device_status; + u8 config_generation; + + /* About a specific virtqueue. */ + u16 queue_select; + u16 queue_size; + u16 queue_msix_vector; + u16 queue_enable; + u16 queue_notify_off; + u32 queue_desc_lo; + u32 queue_desc_hi; + u32 queue_avail_lo; + u32 queue_avail_hi; + u32 queue_used_lo; + u32 queue_used_hi; +}; + +struct ifcvf_net_config { + u8 mac[6]; + u16 status; + u16 max_virtqueue_pairs; +} __attribute__((packed)); + +struct ifcvf_pci_mem_resource { + u64 phys_addr; /**< Physical address, 0 if not resource. */ + u64 len; /**< Length of the resource. */ + u8 *addr; /**< Virtual address, NULL when not mapped. */ +}; + +struct vring_info { + u64 desc; + u64 avail; + u64 used; + u16 size; + u16 last_avail_idx; + u16 last_used_idx; +}; + +struct ifcvf_hw { + u64 req_features; + u8 notify_region; + u32 notify_off_multiplier; + struct ifcvf_pci_common_cfg *common_cfg; + struct ifcvf_net_device_config *dev_cfg; + u8 *isr; + u16 *notify_base; + u16 *notify_addr[IFCVF_MAX_QUEUES * 2]; + u8 *lm_cfg; + struct vring_info vring[IFCVF_MAX_QUEUES * 2]; + u8 nr_vring; + struct ifcvf_pci_mem_resource mem_resource[IFCVF_PCI_MAX_RESOURCE]; +}; + +int +ifcvf_init_hw(struct ifcvf_hw *hw, PCI_DEV *dev); + +u64 +ifcvf_get_features(struct ifcvf_hw *hw); + +int +ifcvf_start_hw(struct ifcvf_hw *hw); + +void +ifcvf_stop_hw(struct ifcvf_hw *hw); + +void +ifcvf_notify_queue(struct ifcvf_hw *hw, u16 qid); + +u8 +ifcvf_get_notify_region(struct ifcvf_hw *hw); + +u64 +ifcvf_get_queue_notify_off(struct ifcvf_hw *hw, int qid); + +#endif /* _IFCVF_H_ */ |