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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_EXCH_DESC_H_7#define _CQ_EXCH_DESC_H_8 9#include "cq_desc.h"10 11/* Exchange completion queue descriptor: 16B */12struct cq_exch_wq_desc {13 u16 completed_index;14 u16 q_number;15 u16 exchange_id;16 u8 tmpl;17 u8 reserved0;18 u32 reserved1;19 u8 exch_status;20 u8 reserved2[2];21 u8 type_color;22};23 24#define CQ_EXCH_WQ_STATUS_BITS 225#define CQ_EXCH_WQ_STATUS_MASK ((1 << CQ_EXCH_WQ_STATUS_BITS) - 1)26 27enum cq_exch_status_types {28 CQ_EXCH_WQ_STATUS_TYPE_COMPLETE = 0,29 CQ_EXCH_WQ_STATUS_TYPE_ABORT = 1,30 CQ_EXCH_WQ_STATUS_TYPE_SGL_EOF = 2,31 CQ_EXCH_WQ_STATUS_TYPE_TMPL_ERR = 3,32};33 34static inline void cq_exch_wq_desc_dec(struct cq_exch_wq_desc *desc_ptr,35 u8 *type,36 u8 *color,37 u16 *q_number,38 u16 *completed_index,39 u8 *exch_status)40{41 cq_desc_dec((struct cq_desc *)desc_ptr, type,42 color, q_number, completed_index);43 *exch_status = desc_ptr->exch_status & CQ_EXCH_WQ_STATUS_MASK;44}45 46struct cq_fcp_rq_desc {47 u16 completed_index_eop_sop_prt;48 u16 q_number;49 u16 exchange_id;50 u16 tmpl;51 u16 bytes_written;52 u16 vlan;53 u8 sof;54 u8 eof;55 u8 fcs_fer_fck;56 u8 type_color;57};58 59#define CQ_FCP_RQ_DESC_FLAGS_SOP (1 << 15)60#define CQ_FCP_RQ_DESC_FLAGS_EOP (1 << 14)61#define CQ_FCP_RQ_DESC_FLAGS_PRT (1 << 12)62#define CQ_FCP_RQ_DESC_TMPL_MASK 0x1f63#define CQ_FCP_RQ_DESC_BYTES_WRITTEN_MASK 0x3fff64#define CQ_FCP_RQ_DESC_PACKET_ERR_SHIFT 1465#define CQ_FCP_RQ_DESC_PACKET_ERR_MASK (1 << CQ_FCP_RQ_DESC_PACKET_ERR_SHIFT)66#define CQ_FCP_RQ_DESC_VS_STRIPPED_SHIFT 1567#define CQ_FCP_RQ_DESC_VS_STRIPPED_MASK (1 << CQ_FCP_RQ_DESC_VS_STRIPPED_SHIFT)68#define CQ_FCP_RQ_DESC_FC_CRC_OK_MASK 0x169#define CQ_FCP_RQ_DESC_FCOE_ERR_SHIFT 170#define CQ_FCP_RQ_DESC_FCOE_ERR_MASK (1 << CQ_FCP_RQ_DESC_FCOE_ERR_SHIFT)71#define CQ_FCP_RQ_DESC_FCS_OK_SHIFT 772#define CQ_FCP_RQ_DESC_FCS_OK_MASK (1 << CQ_FCP_RQ_DESC_FCS_OK_SHIFT)73 74static inline void cq_fcp_rq_desc_dec(struct cq_fcp_rq_desc *desc_ptr,75 u8 *type,76 u8 *color,77 u16 *q_number,78 u16 *completed_index,79 u8 *eop,80 u8 *sop,81 u8 *fck,82 u16 *exchange_id,83 u16 *tmpl,84 u32 *bytes_written,85 u8 *sof,86 u8 *eof,87 u8 *ingress_port,88 u8 *packet_err,89 u8 *fcoe_err,90 u8 *fcs_ok,91 u8 *vlan_stripped,92 u16 *vlan)93{94 cq_desc_dec((struct cq_desc *)desc_ptr, type,95 color, q_number, completed_index);96 *eop = (desc_ptr->completed_index_eop_sop_prt &97 CQ_FCP_RQ_DESC_FLAGS_EOP) ? 1 : 0;98 *sop = (desc_ptr->completed_index_eop_sop_prt &99 CQ_FCP_RQ_DESC_FLAGS_SOP) ? 1 : 0;100 *ingress_port =101 (desc_ptr->completed_index_eop_sop_prt &102 CQ_FCP_RQ_DESC_FLAGS_PRT) ? 1 : 0;103 *exchange_id = desc_ptr->exchange_id;104 *tmpl = desc_ptr->tmpl & CQ_FCP_RQ_DESC_TMPL_MASK;105 *bytes_written =106 desc_ptr->bytes_written & CQ_FCP_RQ_DESC_BYTES_WRITTEN_MASK;107 *packet_err =108 (desc_ptr->bytes_written & CQ_FCP_RQ_DESC_PACKET_ERR_MASK) >>109 CQ_FCP_RQ_DESC_PACKET_ERR_SHIFT;110 *vlan_stripped =111 (desc_ptr->bytes_written & CQ_FCP_RQ_DESC_VS_STRIPPED_MASK) >>112 CQ_FCP_RQ_DESC_VS_STRIPPED_SHIFT;113 *vlan = desc_ptr->vlan;114 *sof = desc_ptr->sof;115 *fck = desc_ptr->fcs_fer_fck & CQ_FCP_RQ_DESC_FC_CRC_OK_MASK;116 *fcoe_err = (desc_ptr->fcs_fer_fck & CQ_FCP_RQ_DESC_FCOE_ERR_MASK) >>117 CQ_FCP_RQ_DESC_FCOE_ERR_SHIFT;118 *eof = desc_ptr->eof;119 *fcs_ok =120 (desc_ptr->fcs_fer_fck & CQ_FCP_RQ_DESC_FCS_OK_MASK) >>121 CQ_FCP_RQ_DESC_FCS_OK_SHIFT;122}123 124struct cq_sgl_desc {125 u16 exchange_id;126 u16 q_number;127 u32 active_burst_offset;128 u32 tot_data_bytes;129 u16 tmpl;130 u8 sgl_err;131 u8 type_color;132};133 134enum cq_sgl_err_types {135 CQ_SGL_ERR_NO_ERROR = 0,136 CQ_SGL_ERR_OVERFLOW, /* data ran beyond end of SGL */137 CQ_SGL_ERR_SGL_LCL_ADDR_ERR, /* sgl access to local vnic addr illegal*/138 CQ_SGL_ERR_ADDR_RSP_ERR, /* sgl address error */139 CQ_SGL_ERR_DATA_RSP_ERR, /* sgl data rsp error */140 CQ_SGL_ERR_CNT_ZERO_ERR, /* SGL count is 0 */141 CQ_SGL_ERR_CNT_MAX_ERR, /* SGL count is larger than supported */142 CQ_SGL_ERR_ORDER_ERR, /* frames recv on both ports, order err */143 CQ_SGL_ERR_DATA_LCL_ADDR_ERR,/* sgl data buf to local vnic addr ill */144 CQ_SGL_ERR_HOST_CQ_ERR, /* host cq entry to local vnic addr ill */145};146 147#define CQ_SGL_SGL_ERR_MASK 0x1f148#define CQ_SGL_TMPL_MASK 0x1f149 150static inline void cq_sgl_desc_dec(struct cq_sgl_desc *desc_ptr,151 u8 *type,152 u8 *color,153 u16 *q_number,154 u16 *exchange_id,155 u32 *active_burst_offset,156 u32 *tot_data_bytes,157 u16 *tmpl,158 u8 *sgl_err)159{160 /* Cheat a little by assuming exchange_id is the same as completed161 index */162 cq_desc_dec((struct cq_desc *)desc_ptr, type, color, q_number,163 exchange_id);164 *active_burst_offset = desc_ptr->active_burst_offset;165 *tot_data_bytes = desc_ptr->tot_data_bytes;166 *tmpl = desc_ptr->tmpl & CQ_SGL_TMPL_MASK;167 *sgl_err = desc_ptr->sgl_err & CQ_SGL_SGL_ERR_MASK;168}169 170#endif /* _CQ_EXCH_DESC_H_ */171