diff options
Diffstat (limited to 'drivers/net/ethernet/intel/ice/ice_flow.h')
| -rw-r--r-- | drivers/net/ethernet/intel/ice/ice_flow.h | 207 |
1 files changed, 207 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/ice/ice_flow.h b/drivers/net/ethernet/intel/ice/ice_flow.h new file mode 100644 index 000000000000..5558627bd5eb --- /dev/null +++ b/drivers/net/ethernet/intel/ice/ice_flow.h @@ -0,0 +1,207 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Copyright (c) 2019, Intel Corporation. */ + +#ifndef _ICE_FLOW_H_ +#define _ICE_FLOW_H_ + +#define ICE_FLOW_ENTRY_HANDLE_INVAL 0 +#define ICE_FLOW_FLD_OFF_INVAL 0xffff + +/* Generate flow hash field from flow field type(s) */ +#define ICE_FLOW_HASH_IPV4 \ + (BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_SA) | \ + BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_DA)) +#define ICE_FLOW_HASH_IPV6 \ + (BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_SA) | \ + BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_DA)) +#define ICE_FLOW_HASH_TCP_PORT \ + (BIT_ULL(ICE_FLOW_FIELD_IDX_TCP_SRC_PORT) | \ + BIT_ULL(ICE_FLOW_FIELD_IDX_TCP_DST_PORT)) +#define ICE_FLOW_HASH_UDP_PORT \ + (BIT_ULL(ICE_FLOW_FIELD_IDX_UDP_SRC_PORT) | \ + BIT_ULL(ICE_FLOW_FIELD_IDX_UDP_DST_PORT)) +#define ICE_FLOW_HASH_SCTP_PORT \ + (BIT_ULL(ICE_FLOW_FIELD_IDX_SCTP_SRC_PORT) | \ + BIT_ULL(ICE_FLOW_FIELD_IDX_SCTP_DST_PORT)) + +#define ICE_HASH_INVALID 0 +#define ICE_HASH_TCP_IPV4 (ICE_FLOW_HASH_IPV4 | ICE_FLOW_HASH_TCP_PORT) +#define ICE_HASH_TCP_IPV6 (ICE_FLOW_HASH_IPV6 | ICE_FLOW_HASH_TCP_PORT) +#define ICE_HASH_UDP_IPV4 (ICE_FLOW_HASH_IPV4 | ICE_FLOW_HASH_UDP_PORT) +#define ICE_HASH_UDP_IPV6 (ICE_FLOW_HASH_IPV6 | ICE_FLOW_HASH_UDP_PORT) + +/* Protocol header fields within a packet segment. A segment consists of one or + * more protocol headers that make up a logical group of protocol headers. Each + * logical group of protocol headers encapsulates or is encapsulated using/by + * tunneling or encapsulation protocols for network virtualization such as GRE, + * VxLAN, etc. + */ +enum ice_flow_seg_hdr { + ICE_FLOW_SEG_HDR_NONE = 0x00000000, + ICE_FLOW_SEG_HDR_IPV4 = 0x00000004, + ICE_FLOW_SEG_HDR_IPV6 = 0x00000008, + ICE_FLOW_SEG_HDR_TCP = 0x00000040, + ICE_FLOW_SEG_HDR_UDP = 0x00000080, + ICE_FLOW_SEG_HDR_SCTP = 0x00000100, +}; + +enum ice_flow_field { + /* L3 */ + ICE_FLOW_FIELD_IDX_IPV4_SA, + ICE_FLOW_FIELD_IDX_IPV4_DA, + ICE_FLOW_FIELD_IDX_IPV6_SA, + ICE_FLOW_FIELD_IDX_IPV6_DA, + /* L4 */ + ICE_FLOW_FIELD_IDX_TCP_SRC_PORT, + ICE_FLOW_FIELD_IDX_TCP_DST_PORT, + ICE_FLOW_FIELD_IDX_UDP_SRC_PORT, + ICE_FLOW_FIELD_IDX_UDP_DST_PORT, + ICE_FLOW_FIELD_IDX_SCTP_SRC_PORT, + ICE_FLOW_FIELD_IDX_SCTP_DST_PORT, + /* The total number of enums must not exceed 64 */ + ICE_FLOW_FIELD_IDX_MAX +}; + +/* Flow headers and fields for AVF support */ +enum ice_flow_avf_hdr_field { + /* Values 0 - 28 are reserved for future use */ + ICE_AVF_FLOW_FIELD_INVALID = 0, + ICE_AVF_FLOW_FIELD_UNICAST_IPV4_UDP = 29, + ICE_AVF_FLOW_FIELD_MULTICAST_IPV4_UDP, + ICE_AVF_FLOW_FIELD_IPV4_UDP, + ICE_AVF_FLOW_FIELD_IPV4_TCP_SYN_NO_ACK, + ICE_AVF_FLOW_FIELD_IPV4_TCP, + ICE_AVF_FLOW_FIELD_IPV4_SCTP, + ICE_AVF_FLOW_FIELD_IPV4_OTHER, + ICE_AVF_FLOW_FIELD_FRAG_IPV4, + /* Values 37-38 are reserved */ + ICE_AVF_FLOW_FIELD_UNICAST_IPV6_UDP = 39, + ICE_AVF_FLOW_FIELD_MULTICAST_IPV6_UDP, + ICE_AVF_FLOW_FIELD_IPV6_UDP, + ICE_AVF_FLOW_FIELD_IPV6_TCP_SYN_NO_ACK, + ICE_AVF_FLOW_FIELD_IPV6_TCP, + ICE_AVF_FLOW_FIELD_IPV6_SCTP, + ICE_AVF_FLOW_FIELD_IPV6_OTHER, + ICE_AVF_FLOW_FIELD_FRAG_IPV6, + ICE_AVF_FLOW_FIELD_RSVD47, + ICE_AVF_FLOW_FIELD_FCOE_OX, + ICE_AVF_FLOW_FIELD_FCOE_RX, + ICE_AVF_FLOW_FIELD_FCOE_OTHER, + /* Values 51-62 are reserved */ + ICE_AVF_FLOW_FIELD_L2_PAYLOAD = 63, + ICE_AVF_FLOW_FIELD_MAX +}; + +/* Supported RSS offloads This macro is defined to support + * VIRTCHNL_OP_GET_RSS_HENA_CAPS ops. PF driver sends the RSS hardware + * capabilities to the caller of this ops. + */ +#define ICE_DEFAULT_RSS_HENA ( \ + BIT_ULL(ICE_AVF_FLOW_FIELD_IPV4_UDP) | \ + BIT_ULL(ICE_AVF_FLOW_FIELD_IPV4_SCTP) | \ + BIT_ULL(ICE_AVF_FLOW_FIELD_IPV4_TCP) | \ + BIT_ULL(ICE_AVF_FLOW_FIELD_IPV4_OTHER) | \ + BIT_ULL(ICE_AVF_FLOW_FIELD_FRAG_IPV4) | \ + BIT_ULL(ICE_AVF_FLOW_FIELD_IPV6_UDP) | \ + BIT_ULL(ICE_AVF_FLOW_FIELD_IPV6_TCP) | \ + BIT_ULL(ICE_AVF_FLOW_FIELD_IPV6_SCTP) | \ + BIT_ULL(ICE_AVF_FLOW_FIELD_IPV6_OTHER) | \ + BIT_ULL(ICE_AVF_FLOW_FIELD_FRAG_IPV6) | \ + BIT_ULL(ICE_AVF_FLOW_FIELD_IPV4_TCP_SYN_NO_ACK) | \ + BIT_ULL(ICE_AVF_FLOW_FIELD_UNICAST_IPV4_UDP) | \ + BIT_ULL(ICE_AVF_FLOW_FIELD_MULTICAST_IPV4_UDP) | \ + BIT_ULL(ICE_AVF_FLOW_FIELD_IPV6_TCP_SYN_NO_ACK) | \ + BIT_ULL(ICE_AVF_FLOW_FIELD_UNICAST_IPV6_UDP) | \ + BIT_ULL(ICE_AVF_FLOW_FIELD_MULTICAST_IPV6_UDP)) + +enum ice_flow_dir { + ICE_FLOW_RX = 0x02, +}; + +enum ice_flow_priority { + ICE_FLOW_PRIO_LOW, + ICE_FLOW_PRIO_NORMAL, + ICE_FLOW_PRIO_HIGH +}; + +#define ICE_FLOW_SEG_MAX 2 +#define ICE_FLOW_FV_EXTRACT_SZ 2 + +#define ICE_FLOW_SET_HDRS(seg, val) ((seg)->hdrs |= (u32)(val)) + +struct ice_flow_seg_xtrct { + u8 prot_id; /* Protocol ID of extracted header field */ + u16 off; /* Starting offset of the field in header in bytes */ + u8 idx; /* Index of FV entry used */ + u8 disp; /* Displacement of field in bits fr. FV entry's start */ +}; + +enum ice_flow_fld_match_type { + ICE_FLOW_FLD_TYPE_REG, /* Value, mask */ + ICE_FLOW_FLD_TYPE_RANGE, /* Value, mask, last (upper bound) */ + ICE_FLOW_FLD_TYPE_PREFIX, /* IP address, prefix, size of prefix */ + ICE_FLOW_FLD_TYPE_SIZE, /* Value, mask, size of match */ +}; + +struct ice_flow_fld_loc { + /* Describe offsets of field information relative to the beginning of + * input buffer provided when adding flow entries. + */ + u16 val; /* Offset where the value is located */ + u16 mask; /* Offset where the mask/prefix value is located */ + u16 last; /* Length or offset where the upper value is located */ +}; + +struct ice_flow_fld_info { + enum ice_flow_fld_match_type type; + /* Location where to retrieve data from an input buffer */ + struct ice_flow_fld_loc src; + /* Location where to put the data into the final entry buffer */ + struct ice_flow_fld_loc entry; + struct ice_flow_seg_xtrct xtrct; +}; + +struct ice_flow_seg_info { + u32 hdrs; /* Bitmask indicating protocol headers present */ + u64 match; /* Bitmask indicating header fields to be matched */ + u64 range; /* Bitmask indicating header fields matched as ranges */ + + struct ice_flow_fld_info fields[ICE_FLOW_FIELD_IDX_MAX]; +}; + +struct ice_flow_prof { + struct list_head l_entry; + + u64 id; + enum ice_flow_dir dir; + u8 segs_cnt; + + /* Keep track of flow entries associated with this flow profile */ + struct mutex entries_lock; + struct list_head entries; + + struct ice_flow_seg_info segs[ICE_FLOW_SEG_MAX]; + + /* software VSI handles referenced by this flow profile */ + DECLARE_BITMAP(vsis, ICE_MAX_VSI); +}; + +struct ice_rss_cfg { + struct list_head l_entry; + /* bitmap of VSIs added to the RSS entry */ + DECLARE_BITMAP(vsis, ICE_MAX_VSI); + u64 hashed_flds; + u32 packet_hdr; +}; + +enum ice_status ice_flow_rem_entry(struct ice_hw *hw, u64 entry_h); +void ice_rem_vsi_rss_list(struct ice_hw *hw, u16 vsi_handle); +enum ice_status ice_replay_rss_cfg(struct ice_hw *hw, u16 vsi_handle); +enum ice_status +ice_add_avf_rss_cfg(struct ice_hw *hw, u16 vsi_handle, u64 hashed_flds); +enum ice_status ice_rem_vsi_rss_cfg(struct ice_hw *hw, u16 vsi_handle); +enum ice_status +ice_add_rss_cfg(struct ice_hw *hw, u16 vsi_handle, u64 hashed_flds, + u32 addl_hdrs); +u64 ice_get_rss_cfg(struct ice_hw *hw, u16 vsi_handle, u32 hdrs); +#endif /* _ICE_FLOW_H_ */ |