cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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iavf_fdir.h (3007B)

      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 filter */
     10enum iavf_fdir_fltr_state_t {
     11	IAVF_FDIR_FLTR_ADD_REQUEST,	/* User requests to add filter */
     12	IAVF_FDIR_FLTR_ADD_PENDING,	/* Filter pending add by the PF */
     13	IAVF_FDIR_FLTR_DEL_REQUEST,	/* User requests to delete filter */
     14	IAVF_FDIR_FLTR_DEL_PENDING,	/* Filter pending delete by the PF */
     15	IAVF_FDIR_FLTR_ACTIVE,		/* Filter is active */
     16};
     17
     18enum iavf_fdir_flow_type {
     19	/* NONE - used for undef/error */
     20	IAVF_FDIR_FLOW_NONE = 0,
     21	IAVF_FDIR_FLOW_IPV4_TCP,
     22	IAVF_FDIR_FLOW_IPV4_UDP,
     23	IAVF_FDIR_FLOW_IPV4_SCTP,
     24	IAVF_FDIR_FLOW_IPV4_AH,
     25	IAVF_FDIR_FLOW_IPV4_ESP,
     26	IAVF_FDIR_FLOW_IPV4_OTHER,
     27	IAVF_FDIR_FLOW_IPV6_TCP,
     28	IAVF_FDIR_FLOW_IPV6_UDP,
     29	IAVF_FDIR_FLOW_IPV6_SCTP,
     30	IAVF_FDIR_FLOW_IPV6_AH,
     31	IAVF_FDIR_FLOW_IPV6_ESP,
     32	IAVF_FDIR_FLOW_IPV6_OTHER,
     33	IAVF_FDIR_FLOW_NON_IP_L2,
     34	/* MAX - this must be last and add anything new just above it */
     35	IAVF_FDIR_FLOW_PTYPE_MAX,
     36};
     37
     38/* Must not exceed the array element number of '__be32 data[2]' in the ethtool
     39 * 'struct ethtool_rx_flow_spec.m_ext.data[2]' to express the flex-byte (word).
     40 */
     41#define IAVF_FLEX_WORD_NUM	2
     42
     43struct iavf_flex_word {
     44	u16 offset;
     45	u16 word;
     46};
     47
     48struct iavf_ipv4_addrs {
     49	__be32 src_ip;
     50	__be32 dst_ip;
     51};
     52
     53struct iavf_ipv6_addrs {
     54	struct in6_addr src_ip;
     55	struct in6_addr dst_ip;
     56};
     57
     58struct iavf_fdir_eth {
     59	__be16 etype;
     60};
     61
     62struct iavf_fdir_ip {
     63	union {
     64		struct iavf_ipv4_addrs v4_addrs;
     65		struct iavf_ipv6_addrs v6_addrs;
     66	};
     67	__be16 src_port;
     68	__be16 dst_port;
     69	__be32 l4_header;	/* first 4 bytes of the layer 4 header */
     70	__be32 spi;		/* security parameter index for AH/ESP */
     71	union {
     72		u8 tos;
     73		u8 tclass;
     74	};
     75	u8 proto;
     76};
     77
     78struct iavf_fdir_extra {
     79	u32 usr_def[IAVF_FLEX_WORD_NUM];
     80};
     81
     82/* bookkeeping of Flow Director filters */
     83struct iavf_fdir_fltr {
     84	enum iavf_fdir_fltr_state_t state;
     85	struct list_head list;
     86
     87	enum iavf_fdir_flow_type flow_type;
     88
     89	struct iavf_fdir_eth eth_data;
     90	struct iavf_fdir_eth eth_mask;
     91
     92	struct iavf_fdir_ip ip_data;
     93	struct iavf_fdir_ip ip_mask;
     94
     95	struct iavf_fdir_extra ext_data;
     96	struct iavf_fdir_extra ext_mask;
     97
     98	enum virtchnl_action action;
     99
    100	/* flex byte filter data */
    101	u8 ip_ver; /* used to adjust the flex offset, 4 : IPv4, 6 : IPv6 */
    102	u8 flex_cnt;
    103	struct iavf_flex_word flex_words[IAVF_FLEX_WORD_NUM];
    104
    105	u32 flow_id;
    106
    107	u32 loc;	/* Rule location inside the flow table */
    108	u32 q_index;
    109
    110	struct virtchnl_fdir_add vc_add_msg;
    111};
    112
    113int iavf_fill_fdir_add_msg(struct iavf_adapter *adapter, struct iavf_fdir_fltr *fltr);
    114void iavf_print_fdir_fltr(struct iavf_adapter *adapter, struct iavf_fdir_fltr *fltr);
    115bool iavf_fdir_is_dup_fltr(struct iavf_adapter *adapter, struct iavf_fdir_fltr *fltr);
    116void iavf_fdir_list_add_fltr(struct iavf_adapter *adapter, struct iavf_fdir_fltr *fltr);
    117struct iavf_fdir_fltr *iavf_find_fdir_fltr_by_loc(struct iavf_adapter *adapter, u32 loc);
    118#endif /* _IAVF_FDIR_H_ */