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1/* SPDX-License-Identifier: GPL-2.0 */2/* Copyright (c) 2021, Intel Corporation. */3 4#ifndef _IAVF_FDIR_H_5#define _IAVF_FDIR_H_6 7struct iavf_adapter;8 9/* State of Flow Director filter10 *11 * *_REQUEST states are used to mark filter to be sent to PF driver to perform12 * an action (either add or delete filter). *_PENDING states are an indication13 * that request was sent to PF and the driver is waiting for response.14 *15 * Both DELETE and DISABLE states are being used to delete a filter in PF.16 * The difference is that after a successful response filter in DEL_PENDING17 * state is being deleted from VF driver as well and filter in DIS_PENDING state18 * is being changed to INACTIVE state.19 */20enum iavf_fdir_fltr_state_t {21 IAVF_FDIR_FLTR_ADD_REQUEST, /* User requests to add filter */22 IAVF_FDIR_FLTR_ADD_PENDING, /* Filter pending add by the PF */23 IAVF_FDIR_FLTR_DEL_REQUEST, /* User requests to delete filter */24 IAVF_FDIR_FLTR_DEL_PENDING, /* Filter pending delete by the PF */25 IAVF_FDIR_FLTR_DIS_REQUEST, /* Filter scheduled to be disabled */26 IAVF_FDIR_FLTR_DIS_PENDING, /* Filter pending disable by the PF */27 IAVF_FDIR_FLTR_INACTIVE, /* Filter inactive on link down */28 IAVF_FDIR_FLTR_ACTIVE, /* Filter is active */29};30 31enum iavf_fdir_flow_type {32 /* NONE - used for undef/error */33 IAVF_FDIR_FLOW_NONE = 0,34 IAVF_FDIR_FLOW_IPV4_TCP,35 IAVF_FDIR_FLOW_IPV4_UDP,36 IAVF_FDIR_FLOW_IPV4_SCTP,37 IAVF_FDIR_FLOW_IPV4_AH,38 IAVF_FDIR_FLOW_IPV4_ESP,39 IAVF_FDIR_FLOW_IPV4_OTHER,40 IAVF_FDIR_FLOW_IPV6_TCP,41 IAVF_FDIR_FLOW_IPV6_UDP,42 IAVF_FDIR_FLOW_IPV6_SCTP,43 IAVF_FDIR_FLOW_IPV6_AH,44 IAVF_FDIR_FLOW_IPV6_ESP,45 IAVF_FDIR_FLOW_IPV6_OTHER,46 IAVF_FDIR_FLOW_NON_IP_L2,47 /* MAX - this must be last and add anything new just above it */48 IAVF_FDIR_FLOW_PTYPE_MAX,49};50 51/* Must not exceed the array element number of '__be32 data[2]' in the ethtool52 * 'struct ethtool_rx_flow_spec.m_ext.data[2]' to express the flex-byte (word).53 */54#define IAVF_FLEX_WORD_NUM 255 56struct iavf_flex_word {57 u16 offset;58 u16 word;59};60 61struct iavf_ipv4_addrs {62 __be32 src_ip;63 __be32 dst_ip;64};65 66struct iavf_ipv6_addrs {67 struct in6_addr src_ip;68 struct in6_addr dst_ip;69};70 71struct iavf_fdir_eth {72 __be16 etype;73};74 75struct iavf_fdir_ip {76 union {77 struct iavf_ipv4_addrs v4_addrs;78 struct iavf_ipv6_addrs v6_addrs;79 };80 __be16 src_port;81 __be16 dst_port;82 __be32 l4_header; /* first 4 bytes of the layer 4 header */83 __be32 spi; /* security parameter index for AH/ESP */84 union {85 u8 tos;86 u8 tclass;87 };88 u8 proto;89};90 91struct iavf_fdir_extra {92 u32 usr_def[IAVF_FLEX_WORD_NUM];93};94 95/* bookkeeping of Flow Director filters */96struct iavf_fdir_fltr {97 enum iavf_fdir_fltr_state_t state;98 struct list_head list;99 100 enum iavf_fdir_flow_type flow_type;101 102 struct iavf_fdir_eth eth_data;103 struct iavf_fdir_eth eth_mask;104 105 struct iavf_fdir_ip ip_data;106 struct iavf_fdir_ip ip_mask;107 108 struct iavf_fdir_extra ext_data;109 struct iavf_fdir_extra ext_mask;110 111 enum virtchnl_action action;112 113 /* flex byte filter data */114 u8 ip_ver; /* used to adjust the flex offset, 4 : IPv4, 6 : IPv6 */115 u8 flex_cnt;116 struct iavf_flex_word flex_words[IAVF_FLEX_WORD_NUM];117 118 u32 flow_id;119 120 u32 cls_u32_handle; /* for FDIR added via tc u32 */121 u32 loc; /* Rule location inside the flow table */122 u32 q_index;123 124 struct virtchnl_fdir_add vc_add_msg;125};126 127static inline bool iavf_is_raw_fdir(struct iavf_fdir_fltr *fltr)128{129 return !fltr->vc_add_msg.rule_cfg.proto_hdrs.count;130}131 132int iavf_validate_fdir_fltr_masks(struct iavf_adapter *adapter,133 struct iavf_fdir_fltr *fltr);134int iavf_fill_fdir_add_msg(struct iavf_adapter *adapter, struct iavf_fdir_fltr *fltr);135void iavf_print_fdir_fltr(struct iavf_adapter *adapter, struct iavf_fdir_fltr *fltr);136bool iavf_fdir_is_dup_fltr(struct iavf_adapter *adapter, struct iavf_fdir_fltr *fltr);137int iavf_fdir_add_fltr(struct iavf_adapter *adapter,138 struct iavf_fdir_fltr *fltr);139int iavf_fdir_del_fltr(struct iavf_adapter *adapter, bool is_raw, u32 data);140struct iavf_fdir_fltr *iavf_find_fdir_fltr(struct iavf_adapter *adapter,141 bool is_raw, u32 data);142#endif /* _IAVF_FDIR_H_ */143