diff options
Diffstat (limited to 'drivers/vfio/pci/hisilicon/hisi_acc_vfio_pci.h')
| -rw-r--r-- | drivers/vfio/pci/hisilicon/hisi_acc_vfio_pci.h | 62 |
1 files changed, 54 insertions, 8 deletions
diff --git a/drivers/vfio/pci/hisilicon/hisi_acc_vfio_pci.h b/drivers/vfio/pci/hisilicon/hisi_acc_vfio_pci.h index dcabfeec6ca1..cd55eba64dfb 100644 --- a/drivers/vfio/pci/hisilicon/hisi_acc_vfio_pci.h +++ b/drivers/vfio/pci/hisilicon/hisi_acc_vfio_pci.h @@ -32,12 +32,16 @@ #define QM_SQC_VFT_BASE_MASK_V2 GENMASK(15, 0) #define QM_SQC_VFT_NUM_SHIFT_V2 45 #define QM_SQC_VFT_NUM_MASK_V2 GENMASK(9, 0) +#define QM_MB_CMD_NOT_READY 0xffffffff /* RW regs */ #define QM_REGS_MAX_LEN 7 #define QM_REG_ADDR_OFFSET 0x0004 #define QM_XQC_ADDR_OFFSET 32U +#define QM_XQC_ADDR_LOW 0x1 +#define QM_XQC_ADDR_HIGH 0x2 + #define QM_VF_AEQ_INT_MASK 0x0004 #define QM_VF_EQ_INT_MASK 0x000c #define QM_IFC_INT_SOURCE_V 0x0020 @@ -46,13 +50,36 @@ #define QM_QUE_ISO_CFG_V 0x0030 #define QM_PAGE_SIZE 0x0034 -#define QM_EQC_DW0 0X8000 -#define QM_AEQC_DW0 0X8020 +#define QM_EQC_VF_DW0 0X8000 +#define QM_AEQC_VF_DW0 0X8020 +#define QM_EQC_PF_DW0 0x1c00 +#define QM_AEQC_PF_DW0 0x1c20 + +#define ACC_DRV_MAJOR_VER 1 +#define ACC_DRV_MINOR_VER 0 + +#define ACC_DEV_MAGIC_V1 0XCDCDCDCDFEEDAACC +#define ACC_DEV_MAGIC_V2 0xAACCFEEDDECADEDE + +#define QM_MIG_REGION_OFFSET 0x180000 +#define QM_MIG_REGION_SIZE 0x2000 + +/** + * On HW_ACC_MIG_VF_CTRL mode, the configuration domain supporting live + * migration functionality is located in the latter 32KB of the VF's BAR2. + * The Guest is only provided with the first 32KB of the VF's BAR2. + * On HW_ACC_MIG_PF_CTRL mode, the configuration domain supporting live + * migration functionality is located in the PF's BAR2, and the entire 64KB + * of the VF's BAR2 is allocated to the Guest. + */ +enum hw_drv_mode { + HW_ACC_MIG_VF_CTRL = 0, + HW_ACC_MIG_PF_CTRL, +}; struct acc_vf_data { #define QM_MATCH_SIZE offsetofend(struct acc_vf_data, qm_rsv_state) /* QM match information */ -#define ACC_DEV_MAGIC 0XCDCDCDCDFEEDAACC u64 acc_magic; u32 qp_num; u32 dev_id; @@ -60,7 +87,9 @@ struct acc_vf_data { u32 qp_base; u32 vf_qm_state; /* QM reserved match information */ - u32 qm_rsv_state[3]; + u16 major_ver; + u16 minor_ver; + u32 qm_rsv_state[2]; /* QM RW regs */ u32 aeq_int_mask; @@ -98,8 +127,15 @@ struct hisi_acc_vf_migration_file { struct hisi_acc_vf_core_device { struct vfio_pci_core_device core_device; - u8 match_done:1; - u8 deferred_reset:1; + u8 match_done; + /* + * io_base is only valid when dev_opened is true, + * which is protected by open_mutex. + */ + bool dev_opened; + /* Ensure the accuracy of dev_opened operation */ + struct mutex open_mutex; + /* For migration state */ struct mutex state_mutex; enum vfio_device_mig_state mig_state; @@ -107,11 +143,21 @@ struct hisi_acc_vf_core_device { struct pci_dev *vf_dev; struct hisi_qm *pf_qm; struct hisi_qm vf_qm; + enum hw_drv_mode drv_mode; + /* + * vf_qm_state represents the QM_VF_STATE register value. + * It is set by Guest driver for the ACC VF dev indicating + * the driver has loaded and configured the dev correctly. + */ u32 vf_qm_state; int vf_id; - /* For reset handler */ - spinlock_t reset_lock; struct hisi_acc_vf_migration_file *resuming_migf; struct hisi_acc_vf_migration_file *saving_migf; + + /* + * It holds migration data corresponding to the last migration + * and is used by the debugfs interface to report it. + */ + struct hisi_acc_vf_migration_file *debug_migf; }; #endif /* HISI_ACC_VFIO_PCI_H */ |