diff options
Diffstat (limited to 'drivers/scsi/fnic/cq_exch_desc.h')
-rw-r--r-- | drivers/scsi/fnic/cq_exch_desc.h | 182 |
1 files changed, 182 insertions, 0 deletions
diff --git a/drivers/scsi/fnic/cq_exch_desc.h b/drivers/scsi/fnic/cq_exch_desc.h new file mode 100644 index 000000000000..501660cfe228 --- /dev/null +++ b/drivers/scsi/fnic/cq_exch_desc.h | |||
@@ -0,0 +1,182 @@ | |||
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 */ | ||
24 | struct 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 | |||
39 | enum 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 | |||
46 | static 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 | |||
58 | struct 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 | |||
86 | static 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 | |||
136 | struct 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 | |||
146 | enum 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 | |||
162 | static 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_ */ | ||