/* SPDX-License-Identifier: GPL-2.0-only */ /* * * Copyright (c) 2011, Microsoft Corporation. * * Authors: * Haiyang Zhang <[email protected]> * Hank Janssen <[email protected]> * K. Y. Srinivasan <[email protected]> */ #ifndef _HYPERV_NET_H #define _HYPERV_NET_H #include <linux/list.h> #include <linux/hyperv.h> #include <linux/rndis.h> #include <linux/jhash.h> #include <net/xdp.h> /* RSS related */ #define OID_GEN_RECEIVE_SCALE_CAPABILITIES … #define OID_GEN_RECEIVE_SCALE_PARAMETERS … #define NDIS_OBJECT_TYPE_RSS_CAPABILITIES … #define NDIS_OBJECT_TYPE_RSS_PARAMETERS … #define NDIS_OBJECT_TYPE_OFFLOAD … #define NDIS_RECEIVE_SCALE_CAPABILITIES_REVISION_2 … #define NDIS_RECEIVE_SCALE_PARAMETERS_REVISION_2 … struct ndis_obj_header { … } __packed; /* ndis_recv_scale_cap/cap_flag */ #define NDIS_RSS_CAPS_MESSAGE_SIGNALED_INTERRUPTS … #define NDIS_RSS_CAPS_CLASSIFICATION_AT_ISR … #define NDIS_RSS_CAPS_CLASSIFICATION_AT_DPC … #define NDIS_RSS_CAPS_USING_MSI_X … #define NDIS_RSS_CAPS_RSS_AVAILABLE_ON_PORTS … #define NDIS_RSS_CAPS_SUPPORTS_MSI_X … #define NDIS_RSS_CAPS_HASH_TYPE_TCP_IPV4 … #define NDIS_RSS_CAPS_HASH_TYPE_TCP_IPV6 … #define NDIS_RSS_CAPS_HASH_TYPE_TCP_IPV6_EX … struct ndis_recv_scale_cap { … } __packed; /* ndis_recv_scale_param flags */ #define NDIS_RSS_PARAM_FLAG_BASE_CPU_UNCHANGED … #define NDIS_RSS_PARAM_FLAG_HASH_INFO_UNCHANGED … #define NDIS_RSS_PARAM_FLAG_ITABLE_UNCHANGED … #define NDIS_RSS_PARAM_FLAG_HASH_KEY_UNCHANGED … #define NDIS_RSS_PARAM_FLAG_DISABLE_RSS … /* Hash info bits */ #define NDIS_HASH_FUNC_TOEPLITZ … #define NDIS_HASH_IPV4 … #define NDIS_HASH_TCP_IPV4 … #define NDIS_HASH_IPV6 … #define NDIS_HASH_IPV6_EX … #define NDIS_HASH_TCP_IPV6 … #define NDIS_HASH_TCP_IPV6_EX … #define NDIS_RSS_INDIRECTION_TABLE_MAX_SIZE_REVISION_2 … #define NDIS_RSS_HASH_SECRET_KEY_MAX_SIZE_REVISION_2 … #define ITAB_NUM … #define ITAB_NUM_MAX … struct ndis_recv_scale_param { … }; struct ndis_tcp_ip_checksum_info { … }; struct ndis_pkt_8021q_info { … }; /* * Represent netvsc packet which contains 1 RNDIS and 1 ethernet frame * within the RNDIS * * The size of this structure is less than 48 bytes and we can now * place this structure in the skb->cb field. */ struct hv_netvsc_packet { … }; #define NETVSC_HASH_KEYLEN … struct netvsc_device_info { … }; enum rndis_device_state { … }; struct rndis_device { … }; /* Interface */ struct rndis_message; struct ndis_offload_params; struct netvsc_device; struct netvsc_channel; struct net_device_context; extern u32 netvsc_ring_bytes; struct netvsc_device *netvsc_device_add(struct hv_device *device, const struct netvsc_device_info *info); int netvsc_alloc_recv_comp_ring(struct netvsc_device *net_device, u32 q_idx); void netvsc_device_remove(struct hv_device *device); int netvsc_send(struct net_device *net, struct hv_netvsc_packet *packet, struct rndis_message *rndis_msg, struct hv_page_buffer *page_buffer, struct sk_buff *skb, bool xdp_tx); void netvsc_linkstatus_callback(struct net_device *net, struct rndis_message *resp, void *data, u32 data_buflen); int netvsc_recv_callback(struct net_device *net, struct netvsc_device *nvdev, struct netvsc_channel *nvchan); void netvsc_channel_cb(void *context); int netvsc_poll(struct napi_struct *napi, int budget); void netvsc_xdp_xmit(struct sk_buff *skb, struct net_device *ndev); u32 netvsc_run_xdp(struct net_device *ndev, struct netvsc_channel *nvchan, struct xdp_buff *xdp); unsigned int netvsc_xdp_fraglen(unsigned int len); struct bpf_prog *netvsc_xdp_get(struct netvsc_device *nvdev); int netvsc_xdp_set(struct net_device *dev, struct bpf_prog *prog, struct netlink_ext_ack *extack, struct netvsc_device *nvdev); int netvsc_vf_setxdp(struct net_device *vf_netdev, struct bpf_prog *prog); int netvsc_bpf(struct net_device *dev, struct netdev_bpf *bpf); int netvsc_ndoxdp_xmit(struct net_device *ndev, int n, struct xdp_frame **frames, u32 flags); int rndis_set_subchannel(struct net_device *ndev, struct netvsc_device *nvdev, struct netvsc_device_info *dev_info); int rndis_filter_open(struct netvsc_device *nvdev); int rndis_filter_close(struct netvsc_device *nvdev); struct netvsc_device *rndis_filter_device_add(struct hv_device *dev, struct netvsc_device_info *info); void rndis_filter_update(struct netvsc_device *nvdev); void rndis_filter_device_remove(struct hv_device *dev, struct netvsc_device *nvdev); int rndis_filter_set_rss_param(struct rndis_device *rdev, const u8 *key); int rndis_filter_set_offload_params(struct net_device *ndev, struct netvsc_device *nvdev, struct ndis_offload_params *req_offloads); int rndis_filter_receive(struct net_device *ndev, struct netvsc_device *net_dev, struct netvsc_channel *nvchan, void *data, u32 buflen); int rndis_filter_set_device_mac(struct netvsc_device *ndev, const char *mac); int netvsc_switch_datapath(struct net_device *nv_dev, bool vf); #define NVSP_INVALID_PROTOCOL_VERSION … #define NVSP_PROTOCOL_VERSION_1 … #define NVSP_PROTOCOL_VERSION_2 … #define NVSP_PROTOCOL_VERSION_4 … #define NVSP_PROTOCOL_VERSION_5 … #define NVSP_PROTOCOL_VERSION_6 … #define NVSP_PROTOCOL_VERSION_61 … enum { … }; enum { … }; struct nvsp_message_header { … }; /* Init Messages */ /* * This message is used by the VSC to initialize the channel after the channels * has been opened. This message should never include anything other then * versioning (i.e. this message will be the same for ever). */ struct nvsp_message_init { … } __packed; /* * This message is used by the VSP to complete the initialization of the * channel. This message should never include anything other then versioning * (i.e. this message will be the same for ever). */ struct nvsp_message_init_complete { … } __packed; nvsp_message_init_uber __packed; /* Version 1 Messages */ /* * This message is used by the VSC to send the NDIS version to the VSP. The VSP * can use this information when handling OIDs sent by the VSC. */ struct nvsp_1_message_send_ndis_version { … } __packed; /* * This message is used by the VSC to send a receive buffer to the VSP. The VSP * can then use the receive buffer to send data to the VSC. */ struct nvsp_1_message_send_receive_buffer { … } __packed; struct nvsp_1_receive_buffer_section { … } __packed; /* * This message is used by the VSP to acknowledge a receive buffer send by the * VSC. This message must be sent by the VSP before the VSP uses the receive * buffer. */ struct nvsp_1_message_send_receive_buffer_complete { … } __packed; /* * This message is sent by the VSC to revoke the receive buffer. After the VSP * completes this transaction, the vsp should never use the receive buffer * again. */ struct nvsp_1_message_revoke_receive_buffer { … }; /* * This message is used by the VSC to send a send buffer to the VSP. The VSC * can then use the send buffer to send data to the VSP. */ struct nvsp_1_message_send_send_buffer { … } __packed; /* * This message is used by the VSP to acknowledge a send buffer sent by the * VSC. This message must be sent by the VSP before the VSP uses the sent * buffer. */ struct nvsp_1_message_send_send_buffer_complete { … } __packed; /* * This message is sent by the VSC to revoke the send buffer. After the VSP * completes this transaction, the vsp should never use the send buffer again. */ struct nvsp_1_message_revoke_send_buffer { … }; /* * This message is used by both the VSP and the VSC to send a RNDIS message to * the opposite channel endpoint. */ struct nvsp_1_message_send_rndis_packet { … } __packed; /* * This message is used by both the VSP and the VSC to complete a RNDIS message * to the opposite channel endpoint. At this point, the initiator of this * message cannot use any resources associated with the original RNDIS packet. */ struct nvsp_1_message_send_rndis_packet_complete { … }; nvsp_1_message_uber __packed; /* * Network VSP protocol version 2 messages: */ struct nvsp_2_vsc_capability { … } __packed; struct nvsp_2_send_ndis_config { … } __packed; /* Allocate receive buffer */ struct nvsp_2_alloc_rxbuf { … } __packed; /* Allocate receive buffer complete */ struct nvsp_2_alloc_rxbuf_comp { … } __packed; struct nvsp_2_free_rxbuf { … } __packed; nvsp_2_message_uber __packed; struct nvsp_4_send_vf_association { … } __packed; enum nvsp_vm_datapath { … }; struct nvsp_4_sw_datapath { … } __packed; nvsp_4_message_uber __packed; enum nvsp_subchannel_operation { … }; struct nvsp_5_subchannel_request { … } __packed; struct nvsp_5_subchannel_complete { … } __packed; struct nvsp_5_send_indirect_table { … } __packed; nvsp_5_message_uber __packed; enum nvsp_6_pd_api_op { … }; struct grp_affinity { … } __packed; struct nvsp_6_pd_api_req { … } __packed; struct nvsp_6_pd_api_comp { … } __packed; struct nvsp_6_pd_buf { … } __packed; struct nvsp_6_pd_batch_msg { … } __packed; nvsp_6_message_uber __packed; nvsp_all_messages __packed; /* ALL Messages */ struct nvsp_message { … } __packed; #define NETVSC_MTU … #define NETVSC_MTU_MIN … /* Max buffer sizes allowed by a host */ #define NETVSC_RECEIVE_BUFFER_SIZE … #define NETVSC_RECEIVE_BUFFER_SIZE_LEGACY … #define NETVSC_RECEIVE_BUFFER_DEFAULT … #define NETVSC_SEND_BUFFER_SIZE … #define NETVSC_SEND_BUFFER_DEFAULT … #define NETVSC_INVALID_INDEX … #define NETVSC_SEND_SECTION_SIZE … #define NETVSC_RECV_SECTION_SIZE … /* Default size of TX buf: 1MB, RX buf: 16MB */ #define NETVSC_MIN_TX_SECTIONS … #define NETVSC_DEFAULT_TX … #define NETVSC_MIN_RX_SECTIONS … #define NETVSC_DEFAULT_RX … #define NETVSC_RECEIVE_BUFFER_ID … #define NETVSC_SEND_BUFFER_ID … #define NETVSC_SUPPORTED_HW_FEATURES … #define VRSS_SEND_TAB_SIZE … #define VRSS_CHANNEL_MAX … #define VRSS_CHANNEL_DEFAULT … #define RNDIS_MAX_PKT_DEFAULT … #define RNDIS_PKT_ALIGN_DEFAULT … #define NETVSC_XDP_HDRM … #define NETVSC_MIN_OUT_MSG_SIZE … #define NETVSC_MIN_IN_MSG_SIZE … /* Estimated requestor size: * out_ring_size/min_out_msg_size + in_ring_size/min_in_msg_size */ static inline u32 netvsc_rqstor_size(unsigned long ringbytes) { … } /* XFER PAGE packets can specify a maximum of 375 ranges for NDIS >= 6.0 * and a maximum of 64 ranges for NDIS < 6.0 with no RSC; with RSC, this * limit is raised to 562 (= NVSP_RSC_MAX). */ #define NETVSC_MAX_XFER_PAGE_RANGES … #define NETVSC_XFER_HEADER_SIZE(rng_cnt) … #define NETVSC_MAX_PKT_SIZE … struct multi_send_data { … }; struct recv_comp_data { … }; struct multi_recv_comp { … }; #define NVSP_RSC_MAX … struct nvsc_rsc { … }; #define NVSC_RSC_VLAN … #define NVSC_RSC_CSUM_INFO … #define NVSC_RSC_HASH_INFO … struct netvsc_stats_tx { … }; struct netvsc_stats_rx { … }; struct netvsc_ethtool_stats { … }; struct netvsc_ethtool_pcpu_stats { … }; struct netvsc_vf_pcpu_stats { … }; struct netvsc_reconfig { … }; /* L4 hash bits for different protocols */ #define HV_TCP4_L4HASH … #define HV_TCP6_L4HASH … #define HV_UDP4_L4HASH … #define HV_UDP6_L4HASH … #define HV_DEFAULT_L4HASH … /* The context of the netvsc device */ struct net_device_context { … }; /* Azure hosts don't support non-TCP port numbers in hashing for fragmented * packets. We can use ethtool to change UDP hash level when necessary. */ static inline u32 netvsc_get_hash(struct sk_buff *skb, const struct net_device_context *ndc) { … } /* Per channel data */ struct netvsc_channel { … }; /* Per netvsc device */ struct netvsc_device { … }; /* NdisInitialize message */ struct rndis_initialize_request { … }; /* Response to NdisInitialize */ struct rndis_initialize_complete { … }; /* Call manager devices only: Information about an address family */ /* supported by the device is appended to the response to NdisInitialize. */ struct rndis_co_address_family { … }; /* NdisHalt message */ struct rndis_halt_request { … }; /* NdisQueryRequest message */ struct rndis_query_request { … }; /* Response to NdisQueryRequest */ struct rndis_query_complete { … }; /* NdisSetRequest message */ struct rndis_set_request { … }; /* Response to NdisSetRequest */ struct rndis_set_complete { … }; /* NdisReset message */ struct rndis_reset_request { … }; /* Response to NdisReset */ struct rndis_reset_complete { … }; /* NdisMIndicateStatus message */ struct rndis_indicate_status { … }; /* Diagnostic information passed as the status buffer in */ /* struct rndis_indicate_status messages signifying error conditions. */ struct rndis_diagnostic_info { … }; /* NdisKeepAlive message */ struct rndis_keepalive_request { … }; /* Response to NdisKeepAlive */ struct rndis_keepalive_complete { … }; /* * Data message. All Offset fields contain byte offsets from the beginning of * struct rndis_packet. All Length fields are in bytes. VcHandle is set * to 0 for connectionless data, otherwise it contains the VC handle. */ struct rndis_packet { … }; /* Optional Out of Band data associated with a Data message. */ struct rndis_oobd { … }; /* Packet extension field contents associated with a Data message. */ struct rndis_per_packet_info { … }; enum ndis_per_pkt_info_type { … }; enum rndis_per_pkt_info_interal_type { … }; #define RNDIS_PKTINFO_SUBALLOC … #define RNDIS_PKTINFO_1ST_FRAG … #define RNDIS_PKTINFO_LAST_FRAG … #define RNDIS_PKTINFO_ID_V1 … struct rndis_pktinfo_id { … }; struct ndis_object_header { … }; #define NDIS_OBJECT_TYPE_DEFAULT … #define NDIS_OFFLOAD_PARAMETERS_REVISION_3 … #define NDIS_OFFLOAD_PARAMETERS_REVISION_2 … #define NDIS_OFFLOAD_PARAMETERS_REVISION_1 … #define NDIS_OFFLOAD_PARAMETERS_NO_CHANGE … #define NDIS_OFFLOAD_PARAMETERS_LSOV2_DISABLED … #define NDIS_OFFLOAD_PARAMETERS_LSOV2_ENABLED … #define NDIS_OFFLOAD_PARAMETERS_LSOV1_ENABLED … #define NDIS_OFFLOAD_PARAMETERS_RSC_DISABLED … #define NDIS_OFFLOAD_PARAMETERS_RSC_ENABLED … #define NDIS_OFFLOAD_PARAMETERS_TX_RX_DISABLED … #define NDIS_OFFLOAD_PARAMETERS_TX_ENABLED_RX_DISABLED … #define NDIS_OFFLOAD_PARAMETERS_RX_ENABLED_TX_DISABLED … #define NDIS_OFFLOAD_PARAMETERS_TX_RX_ENABLED … #define NDIS_TCP_LARGE_SEND_OFFLOAD_V2_TYPE … #define NDIS_TCP_LARGE_SEND_OFFLOAD_IPV4 … #define NDIS_TCP_LARGE_SEND_OFFLOAD_IPV6 … #define VERSION_4_OFFLOAD_SIZE … /* * New offload OIDs for NDIS 6 */ #define OID_TCP_OFFLOAD_CURRENT_CONFIG … #define OID_TCP_OFFLOAD_PARAMETERS … #define OID_TCP_OFFLOAD_HARDWARE_CAPABILITIES … #define OID_TCP_CONNECTION_OFFLOAD_CURRENT_CONFIG … #define OID_TCP_CONNECTION_OFFLOAD_HARDWARE_CAPABILITIES … #define OID_OFFLOAD_ENCAPSULATION … /* * OID_TCP_OFFLOAD_HARDWARE_CAPABILITIES * ndis_type: NDIS_OBJTYPE_OFFLOAD */ #define NDIS_OFFLOAD_ENCAP_NONE … #define NDIS_OFFLOAD_ENCAP_NULL … #define NDIS_OFFLOAD_ENCAP_8023 … #define NDIS_OFFLOAD_ENCAP_8023PQ … #define NDIS_OFFLOAD_ENCAP_8023PQ_OOB … #define NDIS_OFFLOAD_ENCAP_RFC1483 … struct ndis_csum_offload { … }; struct ndis_lsov1_offload { … }; struct ndis_ipsecv1_offload { … }; struct ndis_lsov2_offload { … }; struct ndis_ipsecv2_offload { … }; struct ndis_rsc_offload { … }; struct ndis_encap_offload { … }; struct ndis_offload { … }; #define NDIS_OFFLOAD_SIZE … #define NDIS_OFFLOAD_SIZE_6_0 … #define NDIS_OFFLOAD_SIZE_6_1 … struct ndis_offload_params { … }; struct ndis_tcp_lso_info { … }; #define NDIS_VLAN_PPI_SIZE … #define NDIS_CSUM_PPI_SIZE … #define NDIS_LSO_PPI_SIZE … #define NDIS_HASH_PPI_SIZE … /* Total size of all PPI data */ #define NDIS_ALL_PPI_SIZE … /* Format of Information buffer passed in a SetRequest for the OID */ /* OID_GEN_RNDIS_CONFIG_PARAMETER. */ struct rndis_config_parameter_info { … }; /* Values for ParameterType in struct rndis_config_parameter_info */ #define RNDIS_CONFIG_PARAM_TYPE_INTEGER … #define RNDIS_CONFIG_PARAM_TYPE_STRING … /* CONDIS Miniport messages for connection oriented devices */ /* that do not implement a call manager. */ /* CoNdisMiniportCreateVc message */ struct rcondis_mp_create_vc { … }; /* Response to CoNdisMiniportCreateVc */ struct rcondis_mp_create_vc_complete { … }; /* CoNdisMiniportDeleteVc message */ struct rcondis_mp_delete_vc { … }; /* Response to CoNdisMiniportDeleteVc */ struct rcondis_mp_delete_vc_complete { … }; /* CoNdisMiniportQueryRequest message */ struct rcondis_mp_query_request { … }; /* CoNdisMiniportSetRequest message */ struct rcondis_mp_set_request { … }; /* CoNdisIndicateStatus message */ struct rcondis_indicate_status { … }; /* CONDIS Call/VC parameters */ struct rcondis_specific_parameters { … }; struct rcondis_media_parameters { … }; struct rndis_flowspec { … }; struct rcondis_call_manager_parameters { … }; /* CoNdisMiniportActivateVc message */ struct rcondis_mp_activate_vc_request { … }; /* Response to CoNdisMiniportActivateVc */ struct rcondis_mp_activate_vc_complete { … }; /* CoNdisMiniportDeactivateVc message */ struct rcondis_mp_deactivate_vc_request { … }; /* Response to CoNdisMiniportDeactivateVc */ struct rcondis_mp_deactivate_vc_complete { … }; /* union with all of the RNDIS messages */ rndis_message_container; /* Remote NDIS message format */ struct rndis_message { … }; /* Handy macros */ /* get the size of an RNDIS message. Pass in the message type, */ /* struct rndis_set_request, struct rndis_packet for example */ #define RNDIS_MESSAGE_SIZE(msg) … #define RNDIS_HEADER_SIZE … #define RNDIS_AND_PPI_SIZE … #define NDIS_PACKET_TYPE_DIRECTED … #define NDIS_PACKET_TYPE_MULTICAST … #define NDIS_PACKET_TYPE_ALL_MULTICAST … #define NDIS_PACKET_TYPE_BROADCAST … #define NDIS_PACKET_TYPE_SOURCE_ROUTING … #define NDIS_PACKET_TYPE_PROMISCUOUS … #define NDIS_PACKET_TYPE_SMT … #define NDIS_PACKET_TYPE_ALL_LOCAL … #define NDIS_PACKET_TYPE_GROUP … #define NDIS_PACKET_TYPE_ALL_FUNCTIONAL … #define NDIS_PACKET_TYPE_FUNCTIONAL … #define NDIS_PACKET_TYPE_MAC_FRAME … #define TRANSPORT_INFO_NOT_IP … #define TRANSPORT_INFO_IPV4_TCP … #define TRANSPORT_INFO_IPV4_UDP … #define TRANSPORT_INFO_IPV6_TCP … #define TRANSPORT_INFO_IPV6_UDP … #define RETRY_US_LO … #define RETRY_US_HI … #define RETRY_MAX … void netvsc_dma_unmap(struct hv_device *hv_dev, struct hv_netvsc_packet *packet); #endif /* _HYPERV_NET_H */
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