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 */
12 struct 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 2
25 #define CQ_EXCH_WQ_STATUS_MASK ((1 << CQ_EXCH_WQ_STATUS_BITS) - 1)
26
27 enum 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
cq_exch_wq_desc_dec(struct cq_exch_wq_desc * desc_ptr,u8 * type,u8 * color,u16 * q_number,u16 * completed_index,u8 * exch_status)34 static 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
46 struct 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 0x1f
63 #define CQ_FCP_RQ_DESC_BYTES_WRITTEN_MASK 0x3fff
64 #define CQ_FCP_RQ_DESC_PACKET_ERR_SHIFT 14
65 #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 15
67 #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 0x1
69 #define CQ_FCP_RQ_DESC_FCOE_ERR_SHIFT 1
70 #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 7
72 #define CQ_FCP_RQ_DESC_FCS_OK_MASK (1 << CQ_FCP_RQ_DESC_FCS_OK_SHIFT)
73
cq_fcp_rq_desc_dec(struct cq_fcp_rq_desc * desc_ptr,u8 * type,u8 * color,u16 * q_number,u16 * completed_index,u8 * eop,u8 * sop,u8 * fck,u16 * exchange_id,u16 * tmpl,u32 * bytes_written,u8 * sof,u8 * eof,u8 * ingress_port,u8 * packet_err,u8 * fcoe_err,u8 * fcs_ok,u8 * vlan_stripped,u16 * vlan)74 static 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
124 struct 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
134 enum 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 0x1f
148 #define CQ_SGL_TMPL_MASK 0x1f
149
cq_sgl_desc_dec(struct cq_sgl_desc * desc_ptr,u8 * type,u8 * color,u16 * q_number,u16 * exchange_id,u32 * active_burst_offset,u32 * tot_data_bytes,u16 * tmpl,u8 * sgl_err)150 static 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 completed
161 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
