diff options
Diffstat (limited to 'drivers/net/ethernet/intel/iavf/iavf_client.h')
-rw-r--r-- | drivers/net/ethernet/intel/iavf/iavf_client.h | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/iavf/iavf_client.h b/drivers/net/ethernet/intel/iavf/iavf_client.h new file mode 100644 index 0000000000..500269bc0f --- /dev/null +++ b/drivers/net/ethernet/intel/iavf/iavf_client.h @@ -0,0 +1,169 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Copyright(c) 2013 - 2018 Intel Corporation. */ + +#ifndef _IAVF_CLIENT_H_ +#define _IAVF_CLIENT_H_ + +#define IAVF_CLIENT_STR_LENGTH 10 + +/* Client interface version should be updated anytime there is a change in the + * existing APIs or data structures. + */ +#define IAVF_CLIENT_VERSION_MAJOR 0 +#define IAVF_CLIENT_VERSION_MINOR 01 +#define IAVF_CLIENT_VERSION_BUILD 00 +#define IAVF_CLIENT_VERSION_STR \ + __stringify(IAVF_CLIENT_VERSION_MAJOR) "." \ + __stringify(IAVF_CLIENT_VERSION_MINOR) "." \ + __stringify(IAVF_CLIENT_VERSION_BUILD) + +struct iavf_client_version { + u8 major; + u8 minor; + u8 build; + u8 rsvd; +}; + +enum iavf_client_state { + __IAVF_CLIENT_NULL, + __IAVF_CLIENT_REGISTERED +}; + +enum iavf_client_instance_state { + __IAVF_CLIENT_INSTANCE_NONE, + __IAVF_CLIENT_INSTANCE_OPENED, +}; + +struct iavf_ops; +struct iavf_client; + +/* HW does not define a type value for AEQ; only for RX/TX and CEQ. + * In order for us to keep the interface simple, SW will define a + * unique type value for AEQ. + */ +#define IAVF_QUEUE_TYPE_PE_AEQ 0x80 +#define IAVF_QUEUE_INVALID_IDX 0xFFFF + +struct iavf_qv_info { + u32 v_idx; /* msix_vector */ + u16 ceq_idx; + u16 aeq_idx; + u8 itr_idx; +}; + +struct iavf_qvlist_info { + u32 num_vectors; + struct iavf_qv_info qv_info[]; +}; + +#define IAVF_CLIENT_MSIX_ALL 0xFFFFFFFF + +/* set of LAN parameters useful for clients managed by LAN */ + +/* Struct to hold per priority info */ +struct iavf_prio_qos_params { + u16 qs_handle; /* qs handle for prio */ + u8 tc; /* TC mapped to prio */ + u8 reserved; +}; + +#define IAVF_CLIENT_MAX_USER_PRIORITY 8 +/* Struct to hold Client QoS */ +struct iavf_qos_params { + struct iavf_prio_qos_params prio_qos[IAVF_CLIENT_MAX_USER_PRIORITY]; +}; + +struct iavf_params { + struct iavf_qos_params qos; + u16 mtu; + u16 link_up; /* boolean */ +}; + +/* Structure to hold LAN device info for a client device */ +struct iavf_info { + struct iavf_client_version version; + u8 lanmac[6]; + struct net_device *netdev; + struct pci_dev *pcidev; + u8 __iomem *hw_addr; + u8 fid; /* function id, PF id or VF id */ +#define IAVF_CLIENT_FTYPE_PF 0 +#define IAVF_CLIENT_FTYPE_VF 1 + u8 ftype; /* function type, PF or VF */ + void *vf; /* cast to iavf_adapter */ + + /* All L2 params that could change during the life span of the device + * and needs to be communicated to the client when they change + */ + struct iavf_params params; + struct iavf_ops *ops; + + u16 msix_count; /* number of msix vectors*/ + /* Array down below will be dynamically allocated based on msix_count */ + struct msix_entry *msix_entries; + u16 itr_index; /* Which ITR index the PE driver is suppose to use */ +}; + +struct iavf_ops { + /* setup_q_vector_list enables queues with a particular vector */ + int (*setup_qvlist)(struct iavf_info *ldev, struct iavf_client *client, + struct iavf_qvlist_info *qv_info); + + u32 (*virtchnl_send)(struct iavf_info *ldev, struct iavf_client *client, + u8 *msg, u16 len); + + /* If the PE Engine is unresponsive, RDMA driver can request a reset.*/ + void (*request_reset)(struct iavf_info *ldev, + struct iavf_client *client); +}; + +struct iavf_client_ops { + /* Should be called from register_client() or whenever the driver is + * ready to create a specific client instance. + */ + int (*open)(struct iavf_info *ldev, struct iavf_client *client); + + /* Should be closed when netdev is unavailable or when unregister + * call comes in. If the close happens due to a reset, set the reset + * bit to true. + */ + void (*close)(struct iavf_info *ldev, struct iavf_client *client, + bool reset); + + /* called when some l2 managed parameters changes - mss */ + void (*l2_param_change)(struct iavf_info *ldev, + struct iavf_client *client, + struct iavf_params *params); + + /* called when a message is received from the PF */ + int (*virtchnl_receive)(struct iavf_info *ldev, + struct iavf_client *client, + u8 *msg, u16 len); +}; + +/* Client device */ +struct iavf_client_instance { + struct list_head list; + struct iavf_info lan_info; + struct iavf_client *client; + unsigned long state; +}; + +struct iavf_client { + struct list_head list; /* list of registered clients */ + char name[IAVF_CLIENT_STR_LENGTH]; + struct iavf_client_version version; + unsigned long state; /* client state */ + atomic_t ref_cnt; /* Count of all the client devices of this kind */ + u32 flags; +#define IAVF_CLIENT_FLAGS_LAUNCH_ON_PROBE BIT(0) +#define IAVF_TX_FLAGS_NOTIFY_OTHER_EVENTS BIT(2) + u8 type; +#define IAVF_CLIENT_RDMA 0 + struct iavf_client_ops *ops; /* client ops provided by the client */ +}; + +/* used by clients */ +int iavf_register_client(struct iavf_client *client); +int iavf_unregister_client(struct iavf_client *client); +#endif /* _IAVF_CLIENT_H_ */ |