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