121 lines
3.0 KiB
C
121 lines
3.0 KiB
C
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/* SPDX-License-Identifier: GPL-2.0 */
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/* Copyright (c) 2021, Intel Corporation. */
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#ifndef _IAVF_FDIR_H_
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#define _IAVF_FDIR_H_
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struct iavf_adapter;
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/* State of Flow Director filter */
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enum iavf_fdir_fltr_state_t {
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IAVF_FDIR_FLTR_ADD_REQUEST, /* User requests to add filter */
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IAVF_FDIR_FLTR_ADD_PENDING, /* Filter pending add by the PF */
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IAVF_FDIR_FLTR_DEL_REQUEST, /* User requests to delete filter */
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IAVF_FDIR_FLTR_DEL_PENDING, /* Filter pending delete by the PF */
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IAVF_FDIR_FLTR_ACTIVE, /* Filter is active */
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};
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enum iavf_fdir_flow_type {
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/* NONE - used for undef/error */
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IAVF_FDIR_FLOW_NONE = 0,
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IAVF_FDIR_FLOW_IPV4_TCP,
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IAVF_FDIR_FLOW_IPV4_UDP,
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IAVF_FDIR_FLOW_IPV4_SCTP,
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IAVF_FDIR_FLOW_IPV4_AH,
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IAVF_FDIR_FLOW_IPV4_ESP,
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IAVF_FDIR_FLOW_IPV4_OTHER,
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IAVF_FDIR_FLOW_IPV6_TCP,
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IAVF_FDIR_FLOW_IPV6_UDP,
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IAVF_FDIR_FLOW_IPV6_SCTP,
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IAVF_FDIR_FLOW_IPV6_AH,
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IAVF_FDIR_FLOW_IPV6_ESP,
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IAVF_FDIR_FLOW_IPV6_OTHER,
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IAVF_FDIR_FLOW_NON_IP_L2,
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/* MAX - this must be last and add anything new just above it */
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IAVF_FDIR_FLOW_PTYPE_MAX,
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};
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/* Must not exceed the array element number of '__be32 data[2]' in the ethtool
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* 'struct ethtool_rx_flow_spec.m_ext.data[2]' to express the flex-byte (word).
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*/
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#define IAVF_FLEX_WORD_NUM 2
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struct iavf_flex_word {
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u16 offset;
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u16 word;
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};
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struct iavf_ipv4_addrs {
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__be32 src_ip;
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__be32 dst_ip;
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};
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struct iavf_ipv6_addrs {
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struct in6_addr src_ip;
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struct in6_addr dst_ip;
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};
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struct iavf_fdir_eth {
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__be16 etype;
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};
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struct iavf_fdir_ip {
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union {
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struct iavf_ipv4_addrs v4_addrs;
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struct iavf_ipv6_addrs v6_addrs;
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};
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__be16 src_port;
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__be16 dst_port;
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__be32 l4_header; /* first 4 bytes of the layer 4 header */
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__be32 spi; /* security parameter index for AH/ESP */
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union {
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u8 tos;
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u8 tclass;
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};
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u8 proto;
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};
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struct iavf_fdir_extra {
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u32 usr_def[IAVF_FLEX_WORD_NUM];
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};
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/* bookkeeping of Flow Director filters */
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struct iavf_fdir_fltr {
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enum iavf_fdir_fltr_state_t state;
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struct list_head list;
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enum iavf_fdir_flow_type flow_type;
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struct iavf_fdir_eth eth_data;
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struct iavf_fdir_eth eth_mask;
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struct iavf_fdir_ip ip_data;
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struct iavf_fdir_ip ip_mask;
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struct iavf_fdir_extra ext_data;
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struct iavf_fdir_extra ext_mask;
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enum virtchnl_action action;
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/* flex byte filter data */
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u8 ip_ver; /* used to adjust the flex offset, 4 : IPv4, 6 : IPv6 */
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u8 flex_cnt;
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struct iavf_flex_word flex_words[IAVF_FLEX_WORD_NUM];
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u32 flow_id;
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u32 loc; /* Rule location inside the flow table */
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u32 q_index;
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struct virtchnl_fdir_add vc_add_msg;
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};
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int iavf_validate_fdir_fltr_masks(struct iavf_adapter *adapter,
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struct iavf_fdir_fltr *fltr);
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int iavf_fill_fdir_add_msg(struct iavf_adapter *adapter, struct iavf_fdir_fltr *fltr);
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void iavf_print_fdir_fltr(struct iavf_adapter *adapter, struct iavf_fdir_fltr *fltr);
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bool iavf_fdir_is_dup_fltr(struct iavf_adapter *adapter, struct iavf_fdir_fltr *fltr);
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void iavf_fdir_list_add_fltr(struct iavf_adapter *adapter, struct iavf_fdir_fltr *fltr);
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struct iavf_fdir_fltr *iavf_find_fdir_fltr_by_loc(struct iavf_adapter *adapter, u32 loc);
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#endif /* _IAVF_FDIR_H_ */
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