xref: /openbmc/linux/drivers/scsi/lpfc/lpfc_bsg.h (revision ddc141e5)
1 /*******************************************************************
2  * This file is part of the Emulex Linux Device Driver for         *
3  * Fibre Channel Host Bus Adapters.                                *
4  * Copyright (C) 2017 Broadcom. All Rights Reserved. The term      *
5  * “Broadcom” refers to Broadcom Limited and/or its subsidiaries.  *
6  * Copyright (C) 2010-2015 Emulex.  All rights reserved.           *
7  * EMULEX and SLI are trademarks of Emulex.                        *
8  * www.broadcom.com                                                *
9  *                                                                 *
10  * This program is free software; you can redistribute it and/or   *
11  * modify it under the terms of version 2 of the GNU General       *
12  * Public License as published by the Free Software Foundation.    *
13  * This program is distributed in the hope that it will be useful. *
14  * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND          *
15  * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,  *
16  * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE      *
17  * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
18  * TO BE LEGALLY INVALID.  See the GNU General Public License for  *
19  * more details, a copy of which can be found in the file COPYING  *
20  * included with this package.                                     *
21  *******************************************************************/
22 /* bsg definitions
23  * No pointers to user data are allowed, all application buffers and sizes will
24  * derived through the bsg interface.
25  *
26  * These are the vendor unique structures passed in using the bsg
27  * FC_BSG_HST_VENDOR message code type.
28  */
29 #define LPFC_BSG_VENDOR_SET_CT_EVENT		1
30 #define LPFC_BSG_VENDOR_GET_CT_EVENT		2
31 #define LPFC_BSG_VENDOR_SEND_MGMT_RESP		3
32 #define LPFC_BSG_VENDOR_DIAG_MODE		4
33 #define LPFC_BSG_VENDOR_DIAG_RUN_LOOPBACK	5
34 #define LPFC_BSG_VENDOR_GET_MGMT_REV		6
35 #define LPFC_BSG_VENDOR_MBOX			7
36 #define LPFC_BSG_VENDOR_MENLO_CMD		8
37 #define LPFC_BSG_VENDOR_MENLO_DATA		9
38 #define LPFC_BSG_VENDOR_DIAG_MODE_END		10
39 #define LPFC_BSG_VENDOR_LINK_DIAG_TEST		11
40 #define LPFC_BSG_VENDOR_FORCED_LINK_SPEED	14
41 
42 struct set_ct_event {
43 	uint32_t command;
44 	uint32_t type_mask;
45 	uint32_t ev_req_id;
46 	uint32_t ev_reg_id;
47 };
48 
49 struct get_ct_event {
50 	uint32_t command;
51 	uint32_t ev_reg_id;
52 	uint32_t ev_req_id;
53 };
54 
55 struct get_ct_event_reply {
56 	uint32_t immed_data;
57 	uint32_t type;
58 };
59 
60 struct send_mgmt_resp {
61 	uint32_t command;
62 	uint32_t tag;
63 };
64 
65 
66 #define INTERNAL_LOOP_BACK 0x1 /* adapter short cuts the loop internally */
67 #define EXTERNAL_LOOP_BACK 0x2 /* requires an external loopback plug */
68 
69 struct diag_mode_set {
70 	uint32_t command;
71 	uint32_t type;
72 	uint32_t timeout;
73 };
74 
75 struct sli4_link_diag {
76 	uint32_t command;
77 	uint32_t timeout;
78 	uint32_t test_id;
79 	uint32_t loops;
80 	uint32_t test_version;
81 	uint32_t error_action;
82 };
83 
84 struct diag_mode_test {
85 	uint32_t command;
86 };
87 
88 struct diag_status {
89 	uint32_t mbox_status;
90 	uint32_t shdr_status;
91 	uint32_t shdr_add_status;
92 };
93 
94 #define LPFC_WWNN_TYPE		0
95 #define LPFC_WWPN_TYPE		1
96 
97 struct get_mgmt_rev {
98 	uint32_t command;
99 };
100 
101 #define MANAGEMENT_MAJOR_REV   1
102 #define MANAGEMENT_MINOR_REV   1
103 
104 /* the MgmtRevInfo structure */
105 struct MgmtRevInfo {
106 	uint32_t a_Major;
107 	uint32_t a_Minor;
108 };
109 
110 struct get_mgmt_rev_reply {
111 	struct MgmtRevInfo info;
112 };
113 
114 #define BSG_MBOX_SIZE 4096 /* mailbox command plus extended data */
115 
116 /* BSG mailbox request header */
117 struct dfc_mbox_req {
118 	uint32_t command;
119 	uint32_t mbOffset;
120 	uint32_t inExtWLen;
121 	uint32_t outExtWLen;
122 	uint32_t extMboxTag;
123 	uint32_t extSeqNum;
124 };
125 
126 /* Used for menlo command or menlo data. The xri is only used for menlo data */
127 struct menlo_command {
128 	uint32_t cmd;
129 	uint32_t xri;
130 };
131 
132 struct menlo_response {
133 	uint32_t xri; /* return the xri of the iocb exchange */
134 };
135 
136 /*
137  * macros and data structures for handling sli-config mailbox command
138  * pass-through support, this header file is shared between user and
139  * kernel spaces, note the set of macros are duplicates from lpfc_hw4.h,
140  * with macro names prefixed with bsg_, as the macros defined in
141  * lpfc_hw4.h are not accessible from user space.
142  */
143 
144 /* Macros to deal with bit fields. Each bit field must have 3 #defines
145  * associated with it (_SHIFT, _MASK, and _WORD).
146  * EG. For a bit field that is in the 7th bit of the "field4" field of a
147  * structure and is 2 bits in size the following #defines must exist:
148  *      struct temp {
149  *              uint32_t        field1;
150  *              uint32_t        field2;
151  *              uint32_t        field3;
152  *              uint32_t        field4;
153  *      #define example_bit_field_SHIFT         7
154  *      #define example_bit_field_MASK          0x03
155  *      #define example_bit_field_WORD          field4
156  *              uint32_t        field5;
157  *      };
158  * Then the macros below may be used to get or set the value of that field.
159  * EG. To get the value of the bit field from the above example:
160  *      struct temp t1;
161  *      value = bsg_bf_get(example_bit_field, &t1);
162  * And then to set that bit field:
163  *      bsg_bf_set(example_bit_field, &t1, 2);
164  * Or clear that bit field:
165  *      bsg_bf_set(example_bit_field, &t1, 0);
166  */
167 #define bsg_bf_get_le32(name, ptr) \
168 	((le32_to_cpu((ptr)->name##_WORD) >> name##_SHIFT) & name##_MASK)
169 #define bsg_bf_get(name, ptr) \
170 	(((ptr)->name##_WORD >> name##_SHIFT) & name##_MASK)
171 #define bsg_bf_set_le32(name, ptr, value) \
172 	((ptr)->name##_WORD = cpu_to_le32(((((value) & \
173 	name##_MASK) << name##_SHIFT) | (le32_to_cpu((ptr)->name##_WORD) & \
174 	~(name##_MASK << name##_SHIFT)))))
175 #define bsg_bf_set(name, ptr, value) \
176 	((ptr)->name##_WORD = ((((value) & name##_MASK) << name##_SHIFT) | \
177 	((ptr)->name##_WORD & ~(name##_MASK << name##_SHIFT))))
178 
179 /*
180  * The sli_config structure specified here is based on the following
181  * restriction:
182  *
183  * -- SLI_CONFIG EMB=0, carrying MSEs, will carry subcommands without
184  *    carrying HBD.
185  * -- SLI_CONFIG EMB=1, not carrying MSE, will carry subcommands with or
186  *    without carrying HBDs.
187  */
188 
189 struct lpfc_sli_config_mse {
190 	uint32_t pa_lo;
191 	uint32_t pa_hi;
192 	uint32_t buf_len;
193 #define lpfc_mbox_sli_config_mse_len_SHIFT	0
194 #define lpfc_mbox_sli_config_mse_len_MASK	0xffffff
195 #define lpfc_mbox_sli_config_mse_len_WORD	buf_len
196 };
197 
198 struct lpfc_sli_config_hbd {
199 	uint32_t buf_len;
200 #define lpfc_mbox_sli_config_ecmn_hbd_len_SHIFT	0
201 #define lpfc_mbox_sli_config_ecmn_hbd_len_MASK	0xffffff
202 #define lpfc_mbox_sli_config_ecmn_hbd_len_WORD	buf_len
203 	uint32_t pa_lo;
204 	uint32_t pa_hi;
205 };
206 
207 struct lpfc_sli_config_hdr {
208 	uint32_t word1;
209 #define lpfc_mbox_hdr_emb_SHIFT		0
210 #define lpfc_mbox_hdr_emb_MASK		0x00000001
211 #define lpfc_mbox_hdr_emb_WORD		word1
212 #define lpfc_mbox_hdr_mse_cnt_SHIFT	3
213 #define lpfc_mbox_hdr_mse_cnt_MASK	0x0000001f
214 #define lpfc_mbox_hdr_mse_cnt_WORD	word1
215 	uint32_t payload_length;
216 	uint32_t tag_lo;
217 	uint32_t tag_hi;
218 	uint32_t reserved5;
219 };
220 
221 struct lpfc_sli_config_emb0_subsys {
222 	struct lpfc_sli_config_hdr	sli_config_hdr;
223 #define LPFC_MBX_SLI_CONFIG_MAX_MSE     19
224 	struct lpfc_sli_config_mse	mse[LPFC_MBX_SLI_CONFIG_MAX_MSE];
225 	uint32_t padding;
226 	uint32_t word64;
227 #define lpfc_emb0_subcmnd_opcode_SHIFT	0
228 #define lpfc_emb0_subcmnd_opcode_MASK	0xff
229 #define lpfc_emb0_subcmnd_opcode_WORD	word64
230 #define lpfc_emb0_subcmnd_subsys_SHIFT	8
231 #define lpfc_emb0_subcmnd_subsys_MASK	0xff
232 #define lpfc_emb0_subcmnd_subsys_WORD	word64
233 /* Subsystem FCOE (0x0C) OpCodes */
234 #define SLI_CONFIG_SUBSYS_FCOE		0x0C
235 #define FCOE_OPCODE_READ_FCF		0x08
236 #define FCOE_OPCODE_ADD_FCF		0x09
237 #define FCOE_OPCODE_SET_DPORT_MODE	0x27
238 #define FCOE_OPCODE_GET_DPORT_RESULTS	0x28
239 };
240 
241 struct lpfc_sli_config_emb1_subsys {
242 	struct lpfc_sli_config_hdr	sli_config_hdr;
243 	uint32_t word6;
244 #define lpfc_emb1_subcmnd_opcode_SHIFT	0
245 #define lpfc_emb1_subcmnd_opcode_MASK	0xff
246 #define lpfc_emb1_subcmnd_opcode_WORD	word6
247 #define lpfc_emb1_subcmnd_subsys_SHIFT	8
248 #define lpfc_emb1_subcmnd_subsys_MASK	0xff
249 #define lpfc_emb1_subcmnd_subsys_WORD	word6
250 /* Subsystem COMN (0x01) OpCodes */
251 #define SLI_CONFIG_SUBSYS_COMN		0x01
252 #define COMN_OPCODE_GET_PROFILE_CONFIG	0xA4
253 #define COMN_OPCODE_READ_OBJECT		0xAB
254 #define COMN_OPCODE_WRITE_OBJECT	0xAC
255 #define COMN_OPCODE_READ_OBJECT_LIST	0xAD
256 #define COMN_OPCODE_DELETE_OBJECT	0xAE
257 #define COMN_OPCODE_GET_CNTL_ADDL_ATTRIBUTES	0x79
258 #define COMN_OPCODE_GET_CNTL_ATTRIBUTES	0x20
259 	uint32_t timeout;
260 	uint32_t request_length;
261 	uint32_t word9;
262 #define lpfc_subcmnd_version_SHIFT	0
263 #define lpfc_subcmnd_version_MASK	0xff
264 #define lpfc_subcmnd_version_WORD	word9
265 	uint32_t word10;
266 #define lpfc_subcmnd_ask_rd_len_SHIFT	0
267 #define lpfc_subcmnd_ask_rd_len_MASK	0xffffff
268 #define lpfc_subcmnd_ask_rd_len_WORD	word10
269 	uint32_t rd_offset;
270 	uint32_t obj_name[26];
271 	uint32_t hbd_count;
272 #define LPFC_MBX_SLI_CONFIG_MAX_HBD	8
273 	struct lpfc_sli_config_hbd	hbd[LPFC_MBX_SLI_CONFIG_MAX_HBD];
274 };
275 
276 struct lpfc_sli_config_mbox {
277 	uint32_t word0;
278 #define lpfc_mqe_status_SHIFT		16
279 #define lpfc_mqe_status_MASK		0x0000FFFF
280 #define lpfc_mqe_status_WORD		word0
281 #define lpfc_mqe_command_SHIFT		8
282 #define lpfc_mqe_command_MASK		0x000000FF
283 #define lpfc_mqe_command_WORD		word0
284 	union {
285 		struct lpfc_sli_config_emb0_subsys sli_config_emb0_subsys;
286 		struct lpfc_sli_config_emb1_subsys sli_config_emb1_subsys;
287 	} un;
288 };
289 
290 #define LPFC_FORCED_LINK_SPEED_NOT_SUPPORTED	0
291 #define LPFC_FORCED_LINK_SPEED_SUPPORTED	1
292 struct get_forced_link_speed_support {
293 	uint32_t command;
294 };
295 struct forced_link_speed_support_reply {
296 	uint8_t supported;
297 };
298 
299 /* driver only */
300 #define SLI_CONFIG_NOT_HANDLED		0
301 #define SLI_CONFIG_HANDLED		1
302