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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 | /* 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[1]; }; #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_IWARP 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_ */ |