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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 444#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 047#define CQ_ENET_RQ_DESC_RSS_TYPE_IPv4 148#define CQ_ENET_RQ_DESC_RSS_TYPE_TCP_IPv4 249#define CQ_ENET_RQ_DESC_RSS_TYPE_IPv6 350#define CQ_ENET_RQ_DESC_RSS_TYPE_TCP_IPv6 451#define CQ_ENET_RQ_DESC_RSS_TYPE_IPv6_EX 552#define CQ_ENET_RQ_DESC_RSS_TYPE_TCP_IPv6_EX 653 54#define CQ_ENET_RQ_DESC_FLAGS_CSUM_NOT_CALC (0x1 << 14)55 56#define CQ_ENET_RQ_DESC_BYTES_WRITTEN_BITS 1457#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 463#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 866#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 869 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