1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * Copyright 2008-2010 Cisco Systems, Inc. All rights reserved. 4 * Copyright 2007 Nuova Systems, Inc. All rights reserved. 5 */ 6 7 #ifndef _CQ_ENET_DESC_H_ 8 #define _CQ_ENET_DESC_H_ 9 10 #include "cq_desc.h" 11 12 /* Ethernet completion queue descriptor: 16B */ 13 struct cq_enet_wq_desc { 14 __le16 completed_index; 15 __le16 q_number; 16 u8 reserved[11]; 17 u8 type_color; 18 }; 19 20 static inline void cq_enet_wq_desc_dec(struct cq_enet_wq_desc *desc, 21 u8 *type, u8 *color, u16 *q_number, u16 *completed_index) 22 { 23 cq_desc_dec((struct cq_desc *)desc, type, 24 color, q_number, completed_index); 25 } 26 27 /* Completion queue descriptor: Ethernet receive queue, 16B */ 28 struct cq_enet_rq_desc { 29 __le16 completed_index_flags; 30 __le16 q_number_rss_type_flags; 31 __le32 rss_hash; 32 __le16 bytes_written_flags; 33 __le16 vlan; 34 __le16 checksum_fcoe; 35 u8 flags; 36 u8 type_color; 37 }; 38 39 #define CQ_ENET_RQ_DESC_FLAGS_INGRESS_PORT (0x1 << 12) 40 #define CQ_ENET_RQ_DESC_FLAGS_FCOE (0x1 << 13) 41 #define CQ_ENET_RQ_DESC_FLAGS_EOP (0x1 << 14) 42 #define CQ_ENET_RQ_DESC_FLAGS_SOP (0x1 << 15) 43 44 #define CQ_ENET_RQ_DESC_RSS_TYPE_BITS 4 45 #define CQ_ENET_RQ_DESC_RSS_TYPE_MASK \ 46 ((1 << CQ_ENET_RQ_DESC_RSS_TYPE_BITS) - 1) 47 #define CQ_ENET_RQ_DESC_RSS_TYPE_NONE 0 48 #define CQ_ENET_RQ_DESC_RSS_TYPE_IPv4 1 49 #define CQ_ENET_RQ_DESC_RSS_TYPE_TCP_IPv4 2 50 #define CQ_ENET_RQ_DESC_RSS_TYPE_IPv6 3 51 #define CQ_ENET_RQ_DESC_RSS_TYPE_TCP_IPv6 4 52 #define CQ_ENET_RQ_DESC_RSS_TYPE_IPv6_EX 5 53 #define CQ_ENET_RQ_DESC_RSS_TYPE_TCP_IPv6_EX 6 54 55 #define CQ_ENET_RQ_DESC_FLAGS_CSUM_NOT_CALC (0x1 << 14) 56 57 #define CQ_ENET_RQ_DESC_BYTES_WRITTEN_BITS 14 58 #define CQ_ENET_RQ_DESC_BYTES_WRITTEN_MASK \ 59 ((1 << CQ_ENET_RQ_DESC_BYTES_WRITTEN_BITS) - 1) 60 #define CQ_ENET_RQ_DESC_FLAGS_TRUNCATED (0x1 << 14) 61 #define CQ_ENET_RQ_DESC_FLAGS_VLAN_STRIPPED (0x1 << 15) 62 63 #define CQ_ENET_RQ_DESC_VLAN_TCI_VLAN_BITS 12 64 #define CQ_ENET_RQ_DESC_VLAN_TCI_VLAN_MASK \ 65 ((1 << CQ_ENET_RQ_DESC_VLAN_TCI_VLAN_BITS) - 1) 66 #define CQ_ENET_RQ_DESC_VLAN_TCI_CFI_MASK (0x1 << 12) 67 #define CQ_ENET_RQ_DESC_VLAN_TCI_USER_PRIO_BITS 3 68 #define CQ_ENET_RQ_DESC_VLAN_TCI_USER_PRIO_MASK \ 69 ((1 << CQ_ENET_RQ_DESC_VLAN_TCI_USER_PRIO_BITS) - 1) 70 #define CQ_ENET_RQ_DESC_VLAN_TCI_USER_PRIO_SHIFT 13 71 72 #define CQ_ENET_RQ_DESC_FCOE_SOF_BITS 8 73 #define CQ_ENET_RQ_DESC_FCOE_SOF_MASK \ 74 ((1 << CQ_ENET_RQ_DESC_FCOE_SOF_BITS) - 1) 75 #define CQ_ENET_RQ_DESC_FCOE_EOF_BITS 8 76 #define CQ_ENET_RQ_DESC_FCOE_EOF_MASK \ 77 ((1 << CQ_ENET_RQ_DESC_FCOE_EOF_BITS) - 1) 78 #define CQ_ENET_RQ_DESC_FCOE_EOF_SHIFT 8 79 80 #define CQ_ENET_RQ_DESC_FLAGS_TCP_UDP_CSUM_OK (0x1 << 0) 81 #define CQ_ENET_RQ_DESC_FCOE_FC_CRC_OK (0x1 << 0) 82 #define CQ_ENET_RQ_DESC_FLAGS_UDP (0x1 << 1) 83 #define CQ_ENET_RQ_DESC_FCOE_ENC_ERROR (0x1 << 1) 84 #define CQ_ENET_RQ_DESC_FLAGS_TCP (0x1 << 2) 85 #define CQ_ENET_RQ_DESC_FLAGS_IPV4_CSUM_OK (0x1 << 3) 86 #define CQ_ENET_RQ_DESC_FLAGS_IPV6 (0x1 << 4) 87 #define CQ_ENET_RQ_DESC_FLAGS_IPV4 (0x1 << 5) 88 #define CQ_ENET_RQ_DESC_FLAGS_IPV4_FRAGMENT (0x1 << 6) 89 #define CQ_ENET_RQ_DESC_FLAGS_FCS_OK (0x1 << 7) 90 91 static inline void cq_enet_rq_desc_dec(struct cq_enet_rq_desc *desc, 92 u8 *type, u8 *color, u16 *q_number, u16 *completed_index, 93 u8 *ingress_port, u8 *fcoe, u8 *eop, u8 *sop, u8 *rss_type, 94 u8 *csum_not_calc, u32 *rss_hash, u16 *bytes_written, u8 *packet_error, 95 u8 *vlan_stripped, u16 *vlan_tci, u16 *checksum, u8 *fcoe_sof, 96 u8 *fcoe_fc_crc_ok, u8 *fcoe_enc_error, u8 *fcoe_eof, 97 u8 *tcp_udp_csum_ok, u8 *udp, u8 *tcp, u8 *ipv4_csum_ok, 98 u8 *ipv6, u8 *ipv4, u8 *ipv4_fragment, u8 *fcs_ok) 99 { 100 u16 completed_index_flags; 101 u16 q_number_rss_type_flags; 102 u16 bytes_written_flags; 103 104 cq_desc_dec((struct cq_desc *)desc, type, 105 color, q_number, completed_index); 106 107 completed_index_flags = le16_to_cpu(desc->completed_index_flags); 108 q_number_rss_type_flags = 109 le16_to_cpu(desc->q_number_rss_type_flags); 110 bytes_written_flags = le16_to_cpu(desc->bytes_written_flags); 111 112 *ingress_port = (completed_index_flags & 113 CQ_ENET_RQ_DESC_FLAGS_INGRESS_PORT) ? 1 : 0; 114 *fcoe = (completed_index_flags & CQ_ENET_RQ_DESC_FLAGS_FCOE) ? 115 1 : 0; 116 *eop = (completed_index_flags & CQ_ENET_RQ_DESC_FLAGS_EOP) ? 117 1 : 0; 118 *sop = (completed_index_flags & CQ_ENET_RQ_DESC_FLAGS_SOP) ? 119 1 : 0; 120 121 *rss_type = (u8)((q_number_rss_type_flags >> CQ_DESC_Q_NUM_BITS) & 122 CQ_ENET_RQ_DESC_RSS_TYPE_MASK); 123 *csum_not_calc = (q_number_rss_type_flags & 124 CQ_ENET_RQ_DESC_FLAGS_CSUM_NOT_CALC) ? 1 : 0; 125 126 *rss_hash = le32_to_cpu(desc->rss_hash); 127 128 *bytes_written = bytes_written_flags & 129 CQ_ENET_RQ_DESC_BYTES_WRITTEN_MASK; 130 *packet_error = (bytes_written_flags & 131 CQ_ENET_RQ_DESC_FLAGS_TRUNCATED) ? 1 : 0; 132 *vlan_stripped = (bytes_written_flags & 133 CQ_ENET_RQ_DESC_FLAGS_VLAN_STRIPPED) ? 1 : 0; 134 135 /* 136 * Tag Control Information(16) = user_priority(3) + cfi(1) + vlan(12) 137 */ 138 *vlan_tci = le16_to_cpu(desc->vlan); 139 140 if (*fcoe) { 141 *fcoe_sof = (u8)(le16_to_cpu(desc->checksum_fcoe) & 142 CQ_ENET_RQ_DESC_FCOE_SOF_MASK); 143 *fcoe_fc_crc_ok = (desc->flags & 144 CQ_ENET_RQ_DESC_FCOE_FC_CRC_OK) ? 1 : 0; 145 *fcoe_enc_error = (desc->flags & 146 CQ_ENET_RQ_DESC_FCOE_ENC_ERROR) ? 1 : 0; 147 *fcoe_eof = (u8)((le16_to_cpu(desc->checksum_fcoe) >> 148 CQ_ENET_RQ_DESC_FCOE_EOF_SHIFT) & 149 CQ_ENET_RQ_DESC_FCOE_EOF_MASK); 150 *checksum = 0; 151 } else { 152 *fcoe_sof = 0; 153 *fcoe_fc_crc_ok = 0; 154 *fcoe_enc_error = 0; 155 *fcoe_eof = 0; 156 *checksum = le16_to_cpu(desc->checksum_fcoe); 157 } 158 159 *tcp_udp_csum_ok = 160 (desc->flags & CQ_ENET_RQ_DESC_FLAGS_TCP_UDP_CSUM_OK) ? 1 : 0; 161 *udp = (desc->flags & CQ_ENET_RQ_DESC_FLAGS_UDP) ? 1 : 0; 162 *tcp = (desc->flags & CQ_ENET_RQ_DESC_FLAGS_TCP) ? 1 : 0; 163 *ipv4_csum_ok = 164 (desc->flags & CQ_ENET_RQ_DESC_FLAGS_IPV4_CSUM_OK) ? 1 : 0; 165 *ipv6 = (desc->flags & CQ_ENET_RQ_DESC_FLAGS_IPV6) ? 1 : 0; 166 *ipv4 = (desc->flags & CQ_ENET_RQ_DESC_FLAGS_IPV4) ? 1 : 0; 167 *ipv4_fragment = 168 (desc->flags & CQ_ENET_RQ_DESC_FLAGS_IPV4_FRAGMENT) ? 1 : 0; 169 *fcs_ok = (desc->flags & CQ_ENET_RQ_DESC_FLAGS_FCS_OK) ? 1 : 0; 170 } 171 172 #endif /* _CQ_ENET_DESC_H_ */ 173