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/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright (c) 2021, Intel Corporation. */
#ifndef _IAVF_FDIR_H_
#define _IAVF_FDIR_H_
struct iavf_adapter;
/* State of Flow Director filter
*
* *_REQUEST states are used to mark filter to be sent to PF driver to perform
* an action (either add or delete filter). *_PENDING states are an indication
* that request was sent to PF and the driver is waiting for response.
*
* Both DELETE and DISABLE states are being used to delete a filter in PF.
* The difference is that after a successful response filter in DEL_PENDING
* state is being deleted from VF driver as well and filter in DIS_PENDING state
* is being changed to INACTIVE state.
*/
enum iavf_fdir_fltr_state_t {
IAVF_FDIR_FLTR_ADD_REQUEST, /* User requests to add filter */
IAVF_FDIR_FLTR_ADD_PENDING, /* Filter pending add by the PF */
IAVF_FDIR_FLTR_DEL_REQUEST, /* User requests to delete filter */
IAVF_FDIR_FLTR_DEL_PENDING, /* Filter pending delete by the PF */
IAVF_FDIR_FLTR_DIS_REQUEST, /* Filter scheduled to be disabled */
IAVF_FDIR_FLTR_DIS_PENDING, /* Filter pending disable by the PF */
IAVF_FDIR_FLTR_INACTIVE, /* Filter inactive on link down */
IAVF_FDIR_FLTR_ACTIVE, /* Filter is active */
};
enum iavf_fdir_flow_type {
/* NONE - used for undef/error */
IAVF_FDIR_FLOW_NONE = 0,
IAVF_FDIR_FLOW_IPV4_TCP,
IAVF_FDIR_FLOW_IPV4_UDP,
IAVF_FDIR_FLOW_IPV4_SCTP,
IAVF_FDIR_FLOW_IPV4_AH,
IAVF_FDIR_FLOW_IPV4_ESP,
IAVF_FDIR_FLOW_IPV4_OTHER,
IAVF_FDIR_FLOW_IPV6_TCP,
IAVF_FDIR_FLOW_IPV6_UDP,
IAVF_FDIR_FLOW_IPV6_SCTP,
IAVF_FDIR_FLOW_IPV6_AH,
IAVF_FDIR_FLOW_IPV6_ESP,
IAVF_FDIR_FLOW_IPV6_OTHER,
IAVF_FDIR_FLOW_NON_IP_L2,
/* MAX - this must be last and add anything new just above it */
IAVF_FDIR_FLOW_PTYPE_MAX,
};
/* Must not exceed the array element number of '__be32 data[2]' in the ethtool
* 'struct ethtool_rx_flow_spec.m_ext.data[2]' to express the flex-byte (word).
*/
#define IAVF_FLEX_WORD_NUM 2
struct iavf_flex_word {
u16 offset;
u16 word;
};
struct iavf_ipv4_addrs {
__be32 src_ip;
__be32 dst_ip;
};
struct iavf_ipv6_addrs {
struct in6_addr src_ip;
struct in6_addr dst_ip;
};
struct iavf_fdir_eth {
__be16 etype;
};
struct iavf_fdir_ip {
union {
struct iavf_ipv4_addrs v4_addrs;
struct iavf_ipv6_addrs v6_addrs;
};
__be16 src_port;
__be16 dst_port;
__be32 l4_header; /* first 4 bytes of the layer 4 header */
__be32 spi; /* security parameter index for AH/ESP */
union {
u8 tos;
u8 tclass;
};
u8 proto;
};
struct iavf_fdir_extra {
u32 usr_def[IAVF_FLEX_WORD_NUM];
};
/* bookkeeping of Flow Director filters */
struct iavf_fdir_fltr {
enum iavf_fdir_fltr_state_t state;
struct list_head list;
enum iavf_fdir_flow_type flow_type;
struct iavf_fdir_eth eth_data;
struct iavf_fdir_eth eth_mask;
struct iavf_fdir_ip ip_data;
struct iavf_fdir_ip ip_mask;
struct iavf_fdir_extra ext_data;
struct iavf_fdir_extra ext_mask;
enum virtchnl_action action;
/* flex byte filter data */
u8 ip_ver; /* used to adjust the flex offset, 4 : IPv4, 6 : IPv6 */
u8 flex_cnt;
struct iavf_flex_word flex_words[IAVF_FLEX_WORD_NUM];
u32 flow_id;
u32 loc; /* Rule location inside the flow table */
u32 q_index;
struct virtchnl_fdir_add vc_add_msg;
};
int iavf_validate_fdir_fltr_masks(struct iavf_adapter *adapter,
struct iavf_fdir_fltr *fltr);
int iavf_fill_fdir_add_msg(struct iavf_adapter *adapter, struct iavf_fdir_fltr *fltr);
void iavf_print_fdir_fltr(struct iavf_adapter *adapter, struct iavf_fdir_fltr *fltr);
bool iavf_fdir_is_dup_fltr(struct iavf_adapter *adapter, struct iavf_fdir_fltr *fltr);
void iavf_fdir_list_add_fltr(struct iavf_adapter *adapter, struct iavf_fdir_fltr *fltr);
struct iavf_fdir_fltr *iavf_find_fdir_fltr_by_loc(struct iavf_adapter *adapter, u32 loc);
#endif /* _IAVF_FDIR_H_ */
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