diff options
Diffstat (limited to 'drivers/net/ethernet/intel/ice/ice_lan_tx_rx.h')
| -rw-r--r-- | drivers/net/ethernet/intel/ice/ice_lan_tx_rx.h | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/ice/ice_lan_tx_rx.h b/drivers/net/ethernet/intel/ice/ice_lan_tx_rx.h index e1221b9839d5..57acbcff740b 100644 --- a/drivers/net/ethernet/intel/ice/ice_lan_tx_rx.h +++ b/drivers/net/ethernet/intel/ice/ice_lan_tx_rx.h @@ -40,6 +40,65 @@ union ice_32byte_rx_desc { } wb; /* writeback */ }; +struct ice_rx_ptype_decoded { + u32 ptype:10; + u32 known:1; + u32 outer_ip:1; + u32 outer_ip_ver:2; + u32 outer_frag:1; + u32 tunnel_type:3; + u32 tunnel_end_prot:2; + u32 tunnel_end_frag:1; + u32 inner_prot:4; + u32 payload_layer:3; +}; + +enum ice_rx_ptype_outer_ip { + ICE_RX_PTYPE_OUTER_L2 = 0, + ICE_RX_PTYPE_OUTER_IP = 1, +}; + +enum ice_rx_ptype_outer_ip_ver { + ICE_RX_PTYPE_OUTER_NONE = 0, + ICE_RX_PTYPE_OUTER_IPV4 = 1, + ICE_RX_PTYPE_OUTER_IPV6 = 2, +}; + +enum ice_rx_ptype_outer_fragmented { + ICE_RX_PTYPE_NOT_FRAG = 0, + ICE_RX_PTYPE_FRAG = 1, +}; + +enum ice_rx_ptype_tunnel_type { + ICE_RX_PTYPE_TUNNEL_NONE = 0, + ICE_RX_PTYPE_TUNNEL_IP_IP = 1, + ICE_RX_PTYPE_TUNNEL_IP_GRENAT = 2, + ICE_RX_PTYPE_TUNNEL_IP_GRENAT_MAC = 3, + ICE_RX_PTYPE_TUNNEL_IP_GRENAT_MAC_VLAN = 4, +}; + +enum ice_rx_ptype_tunnel_end_prot { + ICE_RX_PTYPE_TUNNEL_END_NONE = 0, + ICE_RX_PTYPE_TUNNEL_END_IPV4 = 1, + ICE_RX_PTYPE_TUNNEL_END_IPV6 = 2, +}; + +enum ice_rx_ptype_inner_prot { + ICE_RX_PTYPE_INNER_PROT_NONE = 0, + ICE_RX_PTYPE_INNER_PROT_UDP = 1, + ICE_RX_PTYPE_INNER_PROT_TCP = 2, + ICE_RX_PTYPE_INNER_PROT_SCTP = 3, + ICE_RX_PTYPE_INNER_PROT_ICMP = 4, + ICE_RX_PTYPE_INNER_PROT_TIMESYNC = 5, +}; + +enum ice_rx_ptype_payload_layer { + ICE_RX_PTYPE_PAYLOAD_LAYER_NONE = 0, + ICE_RX_PTYPE_PAYLOAD_LAYER_PAY2 = 1, + ICE_RX_PTYPE_PAYLOAD_LAYER_PAY3 = 2, + ICE_RX_PTYPE_PAYLOAD_LAYER_PAY4 = 3, +}; + /* RX Flex Descriptor * This descriptor is used instead of the legacy version descriptor when * ice_rlan_ctx.adv_desc is set @@ -88,6 +147,41 @@ union ice_32b_rx_flex_desc { } wb; /* writeback */ }; +/* Rx Flex Descriptor NIC Profile + * This descriptor corresponds to RxDID 2 which contains + * metadata fields for RSS, flow id and timestamp info + */ +struct ice_32b_rx_flex_desc_nic { + /* Qword 0 */ + u8 rxdid; + u8 mir_id_umb_cast; + __le16 ptype_flexi_flags0; + __le16 pkt_len; + __le16 hdr_len_sph_flex_flags1; + + /* Qword 1 */ + __le16 status_error0; + __le16 l2tag1; + __le32 rss_hash; + + /* Qword 2 */ + __le16 status_error1; + u8 flexi_flags2; + u8 ts_low; + __le16 l2tag2_1st; + __le16 l2tag2_2nd; + + /* Qword 3 */ + __le32 flow_id; + union { + struct { + __le16 vlan_id; + __le16 flow_id_ipv6; + } flex; + __le32 ts_high; + } flex_ts; +}; + /* Receive Flex Descriptor profile IDs: There are a total * of 64 profiles where profile IDs 0/1 are for legacy; and * profiles 2-63 are flex profiles that can be programmed @@ -241,12 +335,56 @@ enum ice_tx_desc_dtype_value { enum ice_tx_desc_cmd_bits { ICE_TX_DESC_CMD_EOP = 0x0001, ICE_TX_DESC_CMD_RS = 0x0002, + ICE_TX_DESC_CMD_IL2TAG1 = 0x0008, + ICE_TX_DESC_CMD_IIPT_IPV6 = 0x0020, /* 2 BITS */ + ICE_TX_DESC_CMD_IIPT_IPV4 = 0x0040, /* 2 BITS */ + ICE_TX_DESC_CMD_IIPT_IPV4_CSUM = 0x0060, /* 2 BITS */ + ICE_TX_DESC_CMD_L4T_EOFT_TCP = 0x0100, /* 2 BITS */ + ICE_TX_DESC_CMD_L4T_EOFT_UDP = 0x0300, /* 2 BITS */ }; #define ICE_TXD_QW1_OFFSET_S 16 +#define ICE_TXD_QW1_OFFSET_M (0x3FFFFULL << ICE_TXD_QW1_OFFSET_S) + +enum ice_tx_desc_len_fields { + /* Note: These are predefined bit offsets */ + ICE_TX_DESC_LEN_MACLEN_S = 0, /* 7 BITS */ + ICE_TX_DESC_LEN_IPLEN_S = 7, /* 7 BITS */ + ICE_TX_DESC_LEN_L4_LEN_S = 14 /* 4 BITS */ +}; + #define ICE_TXD_QW1_TX_BUF_SZ_S 34 #define ICE_TXD_QW1_L2TAG1_S 48 +/* Context descriptors */ +struct ice_tx_ctx_desc { + __le32 tunneling_params; + __le16 l2tag2; + __le16 rsvd; + __le64 qw1; +}; + +#define ICE_TXD_CTX_QW1_CMD_S 4 +#define ICE_TXD_CTX_QW1_CMD_M (0x7FUL << ICE_TXD_CTX_QW1_CMD_S) + +#define ICE_TXD_CTX_QW1_TSO_LEN_S 30 +#define ICE_TXD_CTX_QW1_TSO_LEN_M \ + (0x3FFFFULL << ICE_TXD_CTX_QW1_TSO_LEN_S) + +#define ICE_TXD_CTX_QW1_MSS_S 50 + +enum ice_tx_ctx_desc_cmd_bits { + ICE_TX_CTX_DESC_TSO = 0x01, + ICE_TX_CTX_DESC_TSYN = 0x02, + ICE_TX_CTX_DESC_IL2TAG2 = 0x04, + ICE_TX_CTX_DESC_IL2TAG2_IL2H = 0x08, + ICE_TX_CTX_DESC_SWTCH_NOTAG = 0x00, + ICE_TX_CTX_DESC_SWTCH_UPLINK = 0x10, + ICE_TX_CTX_DESC_SWTCH_LOCAL = 0x20, + ICE_TX_CTX_DESC_SWTCH_VSI = 0x30, + ICE_TX_CTX_DESC_RESERVED = 0x40 +}; + #define ICE_LAN_TXQ_MAX_QGRPS 127 #define ICE_LAN_TXQ_MAX_QDIS 1023 @@ -289,4 +427,35 @@ struct ice_tlan_ctx { u8 pkt_shaper_prof_idx; u8 int_q_state; /* width not needed - internal do not write */ }; + +/* macro to make the table lines short */ +#define ICE_PTT(PTYPE, OUTER_IP, OUTER_IP_VER, OUTER_FRAG, T, TE, TEF, I, PL)\ + { PTYPE, \ + 1, \ + ICE_RX_PTYPE_OUTER_##OUTER_IP, \ + ICE_RX_PTYPE_OUTER_##OUTER_IP_VER, \ + ICE_RX_PTYPE_##OUTER_FRAG, \ + ICE_RX_PTYPE_TUNNEL_##T, \ + ICE_RX_PTYPE_TUNNEL_END_##TE, \ + ICE_RX_PTYPE_##TEF, \ + ICE_RX_PTYPE_INNER_PROT_##I, \ + ICE_RX_PTYPE_PAYLOAD_LAYER_##PL } + +#define ICE_PTT_UNUSED_ENTRY(PTYPE) { PTYPE, 0, 0, 0, 0, 0, 0, 0, 0, 0 } + +/* shorter macros makes the table fit but are terse */ +#define ICE_RX_PTYPE_NOF ICE_RX_PTYPE_NOT_FRAG + +/* Lookup table mapping the HW PTYPE to the bit field for decoding */ +static const struct ice_rx_ptype_decoded ice_ptype_lkup[] = { + /* L2 Packet types */ + ICE_PTT_UNUSED_ENTRY(0), + ICE_PTT(1, L2, NONE, NOF, NONE, NONE, NOF, NONE, PAY2), + ICE_PTT(2, L2, NONE, NOF, NONE, NONE, NOF, NONE, NONE), +}; + +static inline struct ice_rx_ptype_decoded ice_decode_rx_desc_ptype(u16 ptype) +{ + return ice_ptype_lkup[ptype]; +} #endif /* _ICE_LAN_TX_RX_H_ */ |
