xref: /openbmc/linux/drivers/scsi/lpfc/lpfc_bsg.h (revision 63dc02bd)
1 /*******************************************************************
2  * This file is part of the Emulex Linux Device Driver for         *
3  * Fibre Channel Host Bus Adapters.                                *
4  * Copyright (C) 2010 Emulex.  All rights reserved.                *
5  * EMULEX and SLI are trademarks of Emulex.                        *
6  * www.emulex.com                                                  *
7  *                                                                 *
8  * This program is free software; you can redistribute it and/or   *
9  * modify it under the terms of version 2 of the GNU General       *
10  * Public License as published by the Free Software Foundation.    *
11  * This program is distributed in the hope that it will be useful. *
12  * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND          *
13  * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,  *
14  * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE      *
15  * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
16  * TO BE LEGALLY INVALID.  See the GNU General Public License for  *
17  * more details, a copy of which can be found in the file COPYING  *
18  * included with this package.                                     *
19  *******************************************************************/
20 /* bsg definitions
21  * No pointers to user data are allowed, all application buffers and sizes will
22  * derived through the bsg interface.
23  *
24  * These are the vendor unique structures passed in using the bsg
25  * FC_BSG_HST_VENDOR message code type.
26  */
27 #define LPFC_BSG_VENDOR_SET_CT_EVENT		1
28 #define LPFC_BSG_VENDOR_GET_CT_EVENT		2
29 #define LPFC_BSG_VENDOR_SEND_MGMT_RESP		3
30 #define LPFC_BSG_VENDOR_DIAG_MODE		4
31 #define LPFC_BSG_VENDOR_DIAG_RUN_LOOPBACK	5
32 #define LPFC_BSG_VENDOR_GET_MGMT_REV		6
33 #define LPFC_BSG_VENDOR_MBOX			7
34 #define LPFC_BSG_VENDOR_MENLO_CMD		8
35 #define LPFC_BSG_VENDOR_MENLO_DATA		9
36 #define LPFC_BSG_VENDOR_DIAG_MODE_END		10
37 #define LPFC_BSG_VENDOR_LINK_DIAG_TEST		11
38 
39 struct set_ct_event {
40 	uint32_t command;
41 	uint32_t type_mask;
42 	uint32_t ev_req_id;
43 	uint32_t ev_reg_id;
44 };
45 
46 struct get_ct_event {
47 	uint32_t command;
48 	uint32_t ev_reg_id;
49 	uint32_t ev_req_id;
50 };
51 
52 struct get_ct_event_reply {
53 	uint32_t immed_data;
54 	uint32_t type;
55 };
56 
57 struct send_mgmt_resp {
58 	uint32_t command;
59 	uint32_t tag;
60 };
61 
62 
63 #define INTERNAL_LOOP_BACK 0x1 /* adapter short cuts the loop internally */
64 #define EXTERNAL_LOOP_BACK 0x2 /* requires an external loopback plug */
65 
66 struct diag_mode_set {
67 	uint32_t command;
68 	uint32_t type;
69 	uint32_t timeout;
70 };
71 
72 struct sli4_link_diag {
73 	uint32_t command;
74 	uint32_t timeout;
75 	uint32_t test_id;
76 	uint32_t loops;
77 	uint32_t test_version;
78 	uint32_t error_action;
79 };
80 
81 struct diag_mode_test {
82 	uint32_t command;
83 };
84 
85 struct diag_status {
86 	uint32_t mbox_status;
87 	uint32_t shdr_status;
88 	uint32_t shdr_add_status;
89 };
90 
91 #define LPFC_WWNN_TYPE		0
92 #define LPFC_WWPN_TYPE		1
93 
94 struct get_mgmt_rev {
95 	uint32_t command;
96 };
97 
98 #define MANAGEMENT_MAJOR_REV   1
99 #define MANAGEMENT_MINOR_REV   1
100 
101 /* the MgmtRevInfo structure */
102 struct MgmtRevInfo {
103 	uint32_t a_Major;
104 	uint32_t a_Minor;
105 };
106 
107 struct get_mgmt_rev_reply {
108 	struct MgmtRevInfo info;
109 };
110 
111 #define BSG_MBOX_SIZE 4096 /* mailbox command plus extended data */
112 
113 /* BSG mailbox request header */
114 struct dfc_mbox_req {
115 	uint32_t command;
116 	uint32_t mbOffset;
117 	uint32_t inExtWLen;
118 	uint32_t outExtWLen;
119 	uint32_t extMboxTag;
120 	uint32_t extSeqNum;
121 };
122 
123 /* Used for menlo command or menlo data. The xri is only used for menlo data */
124 struct menlo_command {
125 	uint32_t cmd;
126 	uint32_t xri;
127 };
128 
129 struct menlo_response {
130 	uint32_t xri; /* return the xri of the iocb exchange */
131 };
132 
133 /*
134  * macros and data structures for handling sli-config mailbox command
135  * pass-through support, this header file is shared between user and
136  * kernel spaces, note the set of macros are duplicates from lpfc_hw4.h,
137  * with macro names prefixed with bsg_, as the macros defined in
138  * lpfc_hw4.h are not accessible from user space.
139  */
140 
141 /* Macros to deal with bit fields. Each bit field must have 3 #defines
142  * associated with it (_SHIFT, _MASK, and _WORD).
143  * EG. For a bit field that is in the 7th bit of the "field4" field of a
144  * structure and is 2 bits in size the following #defines must exist:
145  *      struct temp {
146  *              uint32_t        field1;
147  *              uint32_t        field2;
148  *              uint32_t        field3;
149  *              uint32_t        field4;
150  *      #define example_bit_field_SHIFT         7
151  *      #define example_bit_field_MASK          0x03
152  *      #define example_bit_field_WORD          field4
153  *              uint32_t        field5;
154  *      };
155  * Then the macros below may be used to get or set the value of that field.
156  * EG. To get the value of the bit field from the above example:
157  *      struct temp t1;
158  *      value = bsg_bf_get(example_bit_field, &t1);
159  * And then to set that bit field:
160  *      bsg_bf_set(example_bit_field, &t1, 2);
161  * Or clear that bit field:
162  *      bsg_bf_set(example_bit_field, &t1, 0);
163  */
164 #define bsg_bf_get_le32(name, ptr) \
165 	((le32_to_cpu((ptr)->name##_WORD) >> name##_SHIFT) & name##_MASK)
166 #define bsg_bf_get(name, ptr) \
167 	(((ptr)->name##_WORD >> name##_SHIFT) & name##_MASK)
168 #define bsg_bf_set_le32(name, ptr, value) \
169 	((ptr)->name##_WORD = cpu_to_le32(((((value) & \
170 	name##_MASK) << name##_SHIFT) | (le32_to_cpu((ptr)->name##_WORD) & \
171 	~(name##_MASK << name##_SHIFT)))))
172 #define bsg_bf_set(name, ptr, value) \
173 	((ptr)->name##_WORD = ((((value) & name##_MASK) << name##_SHIFT) | \
174 	((ptr)->name##_WORD & ~(name##_MASK << name##_SHIFT))))
175 
176 /*
177  * The sli_config structure specified here is based on the following
178  * restriction:
179  *
180  * -- SLI_CONFIG EMB=0, carrying MSEs, will carry subcommands without
181  *    carrying HBD.
182  * -- SLI_CONFIG EMB=1, not carrying MSE, will carry subcommands with or
183  *    without carrying HBDs.
184  */
185 
186 struct lpfc_sli_config_mse {
187 	uint32_t pa_lo;
188 	uint32_t pa_hi;
189 	uint32_t buf_len;
190 #define lpfc_mbox_sli_config_mse_len_SHIFT	0
191 #define lpfc_mbox_sli_config_mse_len_MASK	0xffffff
192 #define lpfc_mbox_sli_config_mse_len_WORD	buf_len
193 };
194 
195 struct lpfc_sli_config_hbd {
196 	uint32_t buf_len;
197 #define lpfc_mbox_sli_config_ecmn_hbd_len_SHIFT	0
198 #define lpfc_mbox_sli_config_ecmn_hbd_len_MASK	0xffffff
199 #define lpfc_mbox_sli_config_ecmn_hbd_len_WORD	buf_len
200 	uint32_t pa_lo;
201 	uint32_t pa_hi;
202 };
203 
204 struct lpfc_sli_config_hdr {
205 	uint32_t word1;
206 #define lpfc_mbox_hdr_emb_SHIFT		0
207 #define lpfc_mbox_hdr_emb_MASK		0x00000001
208 #define lpfc_mbox_hdr_emb_WORD		word1
209 #define lpfc_mbox_hdr_mse_cnt_SHIFT	3
210 #define lpfc_mbox_hdr_mse_cnt_MASK	0x0000001f
211 #define lpfc_mbox_hdr_mse_cnt_WORD	word1
212 	uint32_t payload_length;
213 	uint32_t tag_lo;
214 	uint32_t tag_hi;
215 	uint32_t reserved5;
216 };
217 
218 struct lpfc_sli_config_emb0_subsys {
219 	struct lpfc_sli_config_hdr	sli_config_hdr;
220 #define LPFC_MBX_SLI_CONFIG_MAX_MSE     19
221 	struct lpfc_sli_config_mse	mse[LPFC_MBX_SLI_CONFIG_MAX_MSE];
222 	uint32_t padding;
223 	uint32_t word64;
224 #define lpfc_emb0_subcmnd_opcode_SHIFT	0
225 #define lpfc_emb0_subcmnd_opcode_MASK	0xff
226 #define lpfc_emb0_subcmnd_opcode_WORD	word64
227 #define lpfc_emb0_subcmnd_subsys_SHIFT	8
228 #define lpfc_emb0_subcmnd_subsys_MASK	0xff
229 #define lpfc_emb0_subcmnd_subsys_WORD	word64
230 /* Subsystem FCOE (0x0C) OpCodes */
231 #define SLI_CONFIG_SUBSYS_FCOE		0x0C
232 #define FCOE_OPCODE_READ_FCF		0x08
233 #define FCOE_OPCODE_ADD_FCF		0x09
234 };
235 
236 struct lpfc_sli_config_emb1_subsys {
237 	struct lpfc_sli_config_hdr	sli_config_hdr;
238 	uint32_t word6;
239 #define lpfc_emb1_subcmnd_opcode_SHIFT	0
240 #define lpfc_emb1_subcmnd_opcode_MASK	0xff
241 #define lpfc_emb1_subcmnd_opcode_WORD	word6
242 #define lpfc_emb1_subcmnd_subsys_SHIFT	8
243 #define lpfc_emb1_subcmnd_subsys_MASK	0xff
244 #define lpfc_emb1_subcmnd_subsys_WORD	word6
245 /* Subsystem COMN (0x01) OpCodes */
246 #define SLI_CONFIG_SUBSYS_COMN		0x01
247 #define COMN_OPCODE_READ_OBJECT		0xAB
248 #define COMN_OPCODE_WRITE_OBJECT	0xAC
249 #define COMN_OPCODE_READ_OBJECT_LIST	0xAD
250 #define COMN_OPCODE_DELETE_OBJECT	0xAE
251 #define COMN_OPCODE_GET_CNTL_ADDL_ATTRIBUTES	0x79
252 	uint32_t timeout;
253 	uint32_t request_length;
254 	uint32_t word9;
255 #define lpfc_subcmnd_version_SHIFT	0
256 #define lpfc_subcmnd_version_MASK	0xff
257 #define lpfc_subcmnd_version_WORD	word9
258 	uint32_t word10;
259 #define lpfc_subcmnd_ask_rd_len_SHIFT	0
260 #define lpfc_subcmnd_ask_rd_len_MASK	0xffffff
261 #define lpfc_subcmnd_ask_rd_len_WORD	word10
262 	uint32_t rd_offset;
263 	uint32_t obj_name[26];
264 	uint32_t hbd_count;
265 #define LPFC_MBX_SLI_CONFIG_MAX_HBD	8
266 	struct lpfc_sli_config_hbd	hbd[LPFC_MBX_SLI_CONFIG_MAX_HBD];
267 };
268 
269 struct lpfc_sli_config_mbox {
270 	uint32_t word0;
271 #define lpfc_mqe_status_SHIFT		16
272 #define lpfc_mqe_status_MASK		0x0000FFFF
273 #define lpfc_mqe_status_WORD		word0
274 #define lpfc_mqe_command_SHIFT		8
275 #define lpfc_mqe_command_MASK		0x000000FF
276 #define lpfc_mqe_command_WORD		word0
277 	union {
278 		struct lpfc_sli_config_emb0_subsys sli_config_emb0_subsys;
279 		struct lpfc_sli_config_emb1_subsys sli_config_emb1_subsys;
280 	} un;
281 };
282 
283 /* driver only */
284 #define SLI_CONFIG_NOT_HANDLED		0
285 #define SLI_CONFIG_HANDLED		1
286