1/* 2 * Copyright 2008 Cisco Systems, Inc. All rights reserved. 3 * Copyright 2007 Nuova Systems, Inc. All rights reserved. 4 * 5 * This program is free software; you may redistribute it and/or modify 6 * it under the terms of the GNU General Public License as published by 7 * the Free Software Foundation; version 2 of the License. 8 * 9 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 10 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 11 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 12 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 13 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 14 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 15 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 16 * SOFTWARE. 17 */ 18#ifndef _CQ_EXCH_DESC_H_ 19#define _CQ_EXCH_DESC_H_ 20 21#include "cq_desc.h" 22 23/* Exchange completion queue descriptor: 16B */ 24struct cq_exch_wq_desc { 25 u16 completed_index; 26 u16 q_number; 27 u16 exchange_id; 28 u8 tmpl; 29 u8 reserved0; 30 u32 reserved1; 31 u8 exch_status; 32 u8 reserved2[2]; 33 u8 type_color; 34}; 35 36#define CQ_EXCH_WQ_STATUS_BITS 2 37#define CQ_EXCH_WQ_STATUS_MASK ((1 << CQ_EXCH_WQ_STATUS_BITS) - 1) 38 39enum cq_exch_status_types { 40 CQ_EXCH_WQ_STATUS_TYPE_COMPLETE = 0, 41 CQ_EXCH_WQ_STATUS_TYPE_ABORT = 1, 42 CQ_EXCH_WQ_STATUS_TYPE_SGL_EOF = 2, 43 CQ_EXCH_WQ_STATUS_TYPE_TMPL_ERR = 3, 44}; 45 46static inline void cq_exch_wq_desc_dec(struct cq_exch_wq_desc *desc_ptr, 47 u8 *type, 48 u8 *color, 49 u16 *q_number, 50 u16 *completed_index, 51 u8 *exch_status) 52{ 53 cq_desc_dec((struct cq_desc *)desc_ptr, type, 54 color, q_number, completed_index); 55 *exch_status = desc_ptr->exch_status & CQ_EXCH_WQ_STATUS_MASK; 56} 57 58struct cq_fcp_rq_desc { 59 u16 completed_index_eop_sop_prt; 60 u16 q_number; 61 u16 exchange_id; 62 u16 tmpl; 63 u16 bytes_written; 64 u16 vlan; 65 u8 sof; 66 u8 eof; 67 u8 fcs_fer_fck; 68 u8 type_color; 69}; 70 71#define CQ_FCP_RQ_DESC_FLAGS_SOP (1 << 15) 72#define CQ_FCP_RQ_DESC_FLAGS_EOP (1 << 14) 73#define CQ_FCP_RQ_DESC_FLAGS_PRT (1 << 12) 74#define CQ_FCP_RQ_DESC_TMPL_MASK 0x1f 75#define CQ_FCP_RQ_DESC_BYTES_WRITTEN_MASK 0x3fff 76#define CQ_FCP_RQ_DESC_PACKET_ERR_SHIFT 14 77#define CQ_FCP_RQ_DESC_PACKET_ERR_MASK (1 << CQ_FCP_RQ_DESC_PACKET_ERR_SHIFT) 78#define CQ_FCP_RQ_DESC_VS_STRIPPED_SHIFT 15 79#define CQ_FCP_RQ_DESC_VS_STRIPPED_MASK (1 << CQ_FCP_RQ_DESC_VS_STRIPPED_SHIFT) 80#define CQ_FCP_RQ_DESC_FC_CRC_OK_MASK 0x1 81#define CQ_FCP_RQ_DESC_FCOE_ERR_SHIFT 1 82#define CQ_FCP_RQ_DESC_FCOE_ERR_MASK (1 << CQ_FCP_RQ_DESC_FCOE_ERR_SHIFT) 83#define CQ_FCP_RQ_DESC_FCS_OK_SHIFT 7 84#define CQ_FCP_RQ_DESC_FCS_OK_MASK (1 << CQ_FCP_RQ_DESC_FCS_OK_SHIFT) 85 86static inline void cq_fcp_rq_desc_dec(struct cq_fcp_rq_desc *desc_ptr, 87 u8 *type, 88 u8 *color, 89 u16 *q_number, 90 u16 *completed_index, 91 u8 *eop, 92 u8 *sop, 93 u8 *fck, 94 u16 *exchange_id, 95 u16 *tmpl, 96 u32 *bytes_written, 97 u8 *sof, 98 u8 *eof, 99 u8 *ingress_port, 100 u8 *packet_err, 101 u8 *fcoe_err, 102 u8 *fcs_ok, 103 u8 *vlan_stripped, 104 u16 *vlan) 105{ 106 cq_desc_dec((struct cq_desc *)desc_ptr, type, 107 color, q_number, completed_index); 108 *eop = (desc_ptr->completed_index_eop_sop_prt & 109 CQ_FCP_RQ_DESC_FLAGS_EOP) ? 1 : 0; 110 *sop = (desc_ptr->completed_index_eop_sop_prt & 111 CQ_FCP_RQ_DESC_FLAGS_SOP) ? 1 : 0; 112 *ingress_port = 113 (desc_ptr->completed_index_eop_sop_prt & 114 CQ_FCP_RQ_DESC_FLAGS_PRT) ? 1 : 0; 115 *exchange_id = desc_ptr->exchange_id; 116 *tmpl = desc_ptr->tmpl & CQ_FCP_RQ_DESC_TMPL_MASK; 117 *bytes_written = 118 desc_ptr->bytes_written & CQ_FCP_RQ_DESC_BYTES_WRITTEN_MASK; 119 *packet_err = 120 (desc_ptr->bytes_written & CQ_FCP_RQ_DESC_PACKET_ERR_MASK) >> 121 CQ_FCP_RQ_DESC_PACKET_ERR_SHIFT; 122 *vlan_stripped = 123 (desc_ptr->bytes_written & CQ_FCP_RQ_DESC_VS_STRIPPED_MASK) >> 124 CQ_FCP_RQ_DESC_VS_STRIPPED_SHIFT; 125 *vlan = desc_ptr->vlan; 126 *sof = desc_ptr->sof; 127 *fck = desc_ptr->fcs_fer_fck & CQ_FCP_RQ_DESC_FC_CRC_OK_MASK; 128 *fcoe_err = (desc_ptr->fcs_fer_fck & CQ_FCP_RQ_DESC_FCOE_ERR_MASK) >> 129 CQ_FCP_RQ_DESC_FCOE_ERR_SHIFT; 130 *eof = desc_ptr->eof; 131 *fcs_ok = 132 (desc_ptr->fcs_fer_fck & CQ_FCP_RQ_DESC_FCS_OK_MASK) >> 133 CQ_FCP_RQ_DESC_FCS_OK_SHIFT; 134} 135 136struct cq_sgl_desc { 137 u16 exchange_id; 138 u16 q_number; 139 u32 active_burst_offset; 140 u32 tot_data_bytes; 141 u16 tmpl; 142 u8 sgl_err; 143 u8 type_color; 144}; 145 146enum cq_sgl_err_types { 147 CQ_SGL_ERR_NO_ERROR = 0, 148 CQ_SGL_ERR_OVERFLOW, /* data ran beyond end of SGL */ 149 CQ_SGL_ERR_SGL_LCL_ADDR_ERR, /* sgl access to local vnic addr illegal*/ 150 CQ_SGL_ERR_ADDR_RSP_ERR, /* sgl address error */ 151 CQ_SGL_ERR_DATA_RSP_ERR, /* sgl data rsp error */ 152 CQ_SGL_ERR_CNT_ZERO_ERR, /* SGL count is 0 */ 153 CQ_SGL_ERR_CNT_MAX_ERR, /* SGL count is larger than supported */ 154 CQ_SGL_ERR_ORDER_ERR, /* frames recv on both ports, order err */ 155 CQ_SGL_ERR_DATA_LCL_ADDR_ERR,/* sgl data buf to local vnic addr ill */ 156 CQ_SGL_ERR_HOST_CQ_ERR, /* host cq entry to local vnic addr ill */ 157}; 158 159#define CQ_SGL_SGL_ERR_MASK 0x1f 160#define CQ_SGL_TMPL_MASK 0x1f 161 162static inline void cq_sgl_desc_dec(struct cq_sgl_desc *desc_ptr, 163 u8 *type, 164 u8 *color, 165 u16 *q_number, 166 u16 *exchange_id, 167 u32 *active_burst_offset, 168 u32 *tot_data_bytes, 169 u16 *tmpl, 170 u8 *sgl_err) 171{ 172 /* Cheat a little by assuming exchange_id is the same as completed 173 index */ 174 cq_desc_dec((struct cq_desc *)desc_ptr, type, color, q_number, 175 exchange_id); 176 *active_burst_offset = desc_ptr->active_burst_offset; 177 *tot_data_bytes = desc_ptr->tot_data_bytes; 178 *tmpl = desc_ptr->tmpl & CQ_SGL_TMPL_MASK; 179 *sgl_err = desc_ptr->sgl_err & CQ_SGL_SGL_ERR_MASK; 180} 181 182#endif /* _CQ_EXCH_DESC_H_ */ 183