diff options
Diffstat (limited to 'drivers/vdpa/ifcvf/ifcvf_base.h')
| -rw-r--r-- | drivers/vdpa/ifcvf/ifcvf_base.h | 119 |
1 files changed, 65 insertions, 54 deletions
diff --git a/drivers/vdpa/ifcvf/ifcvf_base.h b/drivers/vdpa/ifcvf/ifcvf_base.h index f4554412e607..aa36de361c10 100644 --- a/drivers/vdpa/ifcvf/ifcvf_base.h +++ b/drivers/vdpa/ifcvf/ifcvf_base.h @@ -14,109 +14,120 @@ #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 IFCVF_VENDOR_ID 0x1AF4 -#define IFCVF_DEVICE_ID 0x1041 -#define IFCVF_SUBSYS_VENDOR_ID 0x8086 -#define IFCVF_SUBSYS_DEVICE_ID 0x001A - -#define IFCVF_SUPPORTED_FEATURES \ - ((1ULL << VIRTIO_NET_F_MAC) | \ - (1ULL << VIRTIO_F_ANY_LAYOUT) | \ - (1ULL << VIRTIO_F_VERSION_1) | \ - (1ULL << VIRTIO_NET_F_STATUS) | \ - (1ULL << VIRTIO_F_ORDER_PLATFORM) | \ - (1ULL << VIRTIO_F_IOMMU_PLATFORM) | \ - (1ULL << VIRTIO_NET_F_MRG_RXBUF)) - -/* Only one queue pair for now. */ -#define IFCVF_MAX_QUEUE_PAIRS 1 +#define N3000_DEVICE_ID 0x1041 +#define N3000_SUBSYS_DEVICE_ID 0x001A #define IFCVF_QUEUE_ALIGNMENT PAGE_SIZE -#define IFCVF_QUEUE_MAX 32768 -#define IFCVF_MSI_CONFIG_OFF 0 -#define IFCVF_MSI_QUEUE_OFF 1 #define IFCVF_PCI_MAX_RESOURCE 6 -#define IFCVF_LM_CFG_SIZE 0x40 -#define IFCVF_LM_RING_STATE_OFFSET 0x20 #define IFCVF_LM_BAR 4 +#define IFCVF_MIN_VQ_SIZE 64 #define IFCVF_ERR(pdev, fmt, ...) dev_err(&pdev->dev, fmt, ##__VA_ARGS__) #define IFCVF_DBG(pdev, fmt, ...) dev_dbg(&pdev->dev, fmt, ##__VA_ARGS__) #define IFCVF_INFO(pdev, fmt, ...) dev_info(&pdev->dev, fmt, ##__VA_ARGS__) -#define ifcvf_private_to_vf(adapter) \ - (&((struct ifcvf_adapter *)adapter)->vf) - -#define IFCVF_MAX_INTR (IFCVF_MAX_QUEUE_PAIRS * 2 + 1) +/* all vqs and config interrupt has its own vector */ +#define MSIX_VECTOR_PER_VQ_AND_CONFIG 1 +/* all vqs share a vector, and config interrupt has a separate vector */ +#define MSIX_VECTOR_SHARED_VQ_AND_CONFIG 2 +/* all vqs and config interrupt share a vector */ +#define MSIX_VECTOR_DEV_SHARED 3 struct vring_info { - u64 desc; - u64 avail; - u64 used; - u16 size; u16 last_avail_idx; - bool ready; void __iomem *notify_addr; + phys_addr_t notify_pa; u32 irq; struct vdpa_callback cb; char msix_name[256]; }; +struct ifcvf_lm_cfg { + __le64 control; + __le64 status; + __le64 lm_mem_log_start_addr; + __le64 lm_mem_log_end_addr; + __le16 vq_state_region; +}; + struct ifcvf_hw { u8 __iomem *isr; /* Live migration */ - u8 __iomem *lm_cfg; - u16 nr_vring; + struct ifcvf_lm_cfg __iomem *lm_cfg; /* Notification bar number */ u8 notify_bar; + u8 msix_vector_status; + /* virtio-net or virtio-blk device config size */ + u32 config_size; /* Notificaiton bar address */ void __iomem *notify_base; + phys_addr_t notify_base_pa; u32 notify_off_multiplier; - u64 req_features; + u32 dev_type; + u64 hw_features; + /* provisioned device features */ + u64 dev_features; struct virtio_pci_common_cfg __iomem *common_cfg; - void __iomem *net_cfg; - struct vring_info vring[IFCVF_MAX_QUEUE_PAIRS * 2]; + void __iomem *dev_cfg; + struct vring_info *vring; void __iomem * const *base; char config_msix_name[256]; struct vdpa_callback config_cb; - + int config_irq; + int vqs_reused_irq; + u16 nr_vring; + /* VIRTIO_PCI_CAP_DEVICE_CFG size */ + u32 num_msix_vectors; + u32 cap_dev_config_size; + struct pci_dev *pdev; }; struct ifcvf_adapter { struct vdpa_device vdpa; struct pci_dev *pdev; - struct ifcvf_hw vf; -}; - -struct ifcvf_vring_lm_cfg { - u32 idx_addr[2]; - u8 reserved[IFCVF_LM_CFG_SIZE - 8]; + struct ifcvf_hw *vf; }; -struct ifcvf_lm_cfg { - u8 reserved[IFCVF_LM_RING_STATE_OFFSET]; - struct ifcvf_vring_lm_cfg vring_lm_cfg[IFCVF_MAX_QUEUE_PAIRS]; +struct ifcvf_vdpa_mgmt_dev { + struct vdpa_mgmt_dev mdev; + struct ifcvf_hw vf; + struct ifcvf_adapter *adapter; + struct pci_dev *pdev; }; int ifcvf_init_hw(struct ifcvf_hw *hw, struct pci_dev *dev); -int ifcvf_start_hw(struct ifcvf_hw *hw); -void ifcvf_stop_hw(struct ifcvf_hw *hw); +void ifcvf_stop(struct ifcvf_hw *hw); void ifcvf_notify_queue(struct ifcvf_hw *hw, u16 qid); -void ifcvf_read_net_config(struct ifcvf_hw *hw, u64 offset, +void ifcvf_read_dev_config(struct ifcvf_hw *hw, u64 offset, void *dst, int length); -void ifcvf_write_net_config(struct ifcvf_hw *hw, u64 offset, +void ifcvf_write_dev_config(struct ifcvf_hw *hw, u64 offset, const void *src, int length); u8 ifcvf_get_status(struct ifcvf_hw *hw); void ifcvf_set_status(struct ifcvf_hw *hw, u8 status); -void io_write64_twopart(u64 val, u32 *lo, u32 *hi); void ifcvf_reset(struct ifcvf_hw *hw); -u64 ifcvf_get_features(struct ifcvf_hw *hw); -u64 ifcvf_get_vq_state(struct ifcvf_hw *hw, u16 qid); -int ifcvf_set_vq_state(struct ifcvf_hw *hw, u16 qid, u64 num); -struct ifcvf_adapter *vf_to_adapter(struct ifcvf_hw *hw); +u64 ifcvf_get_dev_features(struct ifcvf_hw *hw); +u64 ifcvf_get_hw_features(struct ifcvf_hw *hw); +int ifcvf_verify_min_features(struct ifcvf_hw *hw, u64 features); +u16 ifcvf_get_vq_state(struct ifcvf_hw *hw, u16 qid); +int ifcvf_set_vq_state(struct ifcvf_hw *hw, u16 qid, u16 num); +u32 ifcvf_get_config_size(struct ifcvf_hw *hw); +u16 ifcvf_set_vq_vector(struct ifcvf_hw *hw, u16 qid, int vector); +u16 ifcvf_set_config_vector(struct ifcvf_hw *hw, int vector); +void ifcvf_set_vq_num(struct ifcvf_hw *hw, u16 qid, u32 num); +int ifcvf_set_vq_address(struct ifcvf_hw *hw, u16 qid, u64 desc_area, + u64 driver_area, u64 device_area); +bool ifcvf_get_vq_ready(struct ifcvf_hw *hw, u16 qid); +void ifcvf_set_vq_ready(struct ifcvf_hw *hw, u16 qid, bool ready); +void ifcvf_set_driver_features(struct ifcvf_hw *hw, u64 features); +u64 ifcvf_get_driver_features(struct ifcvf_hw *hw); +u16 ifcvf_get_max_vq_size(struct ifcvf_hw *hw); +u16 ifcvf_get_vq_size(struct ifcvf_hw *hw, u16 qid); #endif /* _IFCVF_H_ */ |