1 /* SPDX-License-Identifier: GPL-2.0-or-later */ 2 /* 3 * Driver for Alibaba Elastic Ethernet Adapter. 4 * 5 * Copyright (C) 2025 Alibaba Inc. 6 */ 7 8 #ifndef __EEA_DESC_H__ 9 #define __EEA_DESC_H__ 10 11 #define EEA_DESC_TS_MASK GENMASK_ULL(47, 0) 12 #define EEA_DESC_TS(desc) (le64_to_cpu((desc)->ts) & EEA_DESC_TS_MASK) 13 14 struct eea_aq_desc { 15 __le16 flags; 16 __le16 id; 17 __le16 reserved; 18 u8 classid; 19 u8 command; 20 __le64 data_addr; 21 __le64 reply_addr; 22 __le32 data_len; 23 __le32 reply_len; 24 }; 25 26 struct eea_aq_cdesc { 27 __le16 flags; 28 __le16 id; 29 #define EEA_OK 0 30 #define EEA_ERR 0xffffffff 31 __le32 status; 32 __le32 reply_len; 33 __le32 reserved1; 34 35 __le64 reserved2; 36 __le64 reserved3; 37 }; 38 39 struct eea_rx_desc_no_hdr { 40 __le16 flags; 41 __le16 id; 42 __le16 len; 43 __le16 reserved1; 44 45 __le64 addr; 46 }; 47 48 struct eea_rx_desc { 49 __le16 flags; 50 __le16 id; 51 __le16 len; 52 __le16 reserved1; 53 54 __le64 addr; 55 56 __le64 hdr_addr; 57 __le32 reserved2; 58 __le32 reserved3; 59 }; 60 61 #define EEA_RX_CDESC_HDR_LEN_MASK GENMASK_ULL(9, 0) 62 63 struct eea_rx_cdesc { 64 #define EEA_DESC_F_DATA_VALID BIT(6) 65 #define EEA_DESC_F_SPLIT_HDR BIT(5) 66 __le16 flags; 67 __le16 id; 68 __le16 len; 69 #define EEA_NET_PT_NONE 0 70 #define EEA_NET_PT_IPv4 1 71 #define EEA_NET_PT_TCPv4 2 72 #define EEA_NET_PT_UDPv4 3 73 #define EEA_NET_PT_IPv6 4 74 #define EEA_NET_PT_TCPv6 5 75 #define EEA_NET_PT_UDPv6 6 76 #define EEA_NET_PT_IPv6_EX 7 77 #define EEA_NET_PT_TCPv6_EX 8 78 #define EEA_NET_PT_UDPv6_EX 9 79 /* [9:0] is packet type. */ 80 __le16 type; 81 82 /* hw timestamp [0:47]: ts */ 83 __le64 ts; 84 85 __le32 hash; 86 87 /* 0-9: hdr_len split header 88 * 10-15: reserved1 89 */ 90 __le16 len_ex; 91 __le16 reserved2; 92 93 __le32 reserved3; 94 __le32 reserved4; 95 }; 96 97 #define EEA_TX_GSO_NONE 0 98 #define EEA_TX_GSO_TCPV4 1 99 #define EEA_TX_GSO_TCPV6 4 100 #define EEA_TX_GSO_UDP_L4 5 101 #define EEA_TX_GSO_ECN 0x80 102 103 struct eea_tx_desc { 104 #define EEA_DESC_F_DO_CSUM BIT(6) 105 __le16 flags; 106 __le16 id; 107 __le16 len; 108 __le16 reserved1; 109 110 __le64 addr; 111 112 __le16 csum_start; 113 __le16 csum_offset; 114 u8 gso_type; 115 u8 reserved2; 116 __le16 gso_size; 117 __le64 reserved3; 118 }; 119 120 struct eea_tx_cdesc { 121 __le16 flags; 122 __le16 id; 123 __le16 len; 124 __le16 reserved1; 125 126 /* hw timestamp [0:47]: ts */ 127 __le64 ts; 128 }; 129 130 #define EEA_DB_FLAGS_OFF 0 131 #define EEA_DB_IDX_OFF (2 * 8) 132 #define EEA_DB_TX_CQ_HEAD_OFF (4 * 8) 133 #define EEA_DB_RX_CQ_HEAD_OFF (6 * 8) 134 135 #define EEA_IDX_PRESENT BIT(0) 136 #define EEA_IRQ_MASK BIT(1) 137 #define EEA_IRQ_UNMASK BIT(2) 138 #endif 139