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316 lines · 8.0 KiB

1// SPDX-License-Identifier: GPL-2.0
2/* Copyright(c) 2023 Advanced Micro Devices, Inc */
3
4#include "core.h"
5#include <linux/pds/pds_auxbus.h>
6
7static struct
8pdsc_viftype *pdsc_dl_find_viftype_by_id(struct pdsc *pdsc,
9 enum devlink_param_type dl_id)
10{
11 int vt;
12
13 if (!pdsc->viftype_status)
14 return NULL;
15
16 for (vt = 0; vt < PDS_DEV_TYPE_MAX; vt++) {
17 if (pdsc->viftype_status[vt].dl_id == dl_id)
18 return &pdsc->viftype_status[vt];
19 }
20
21 return NULL;
22}
23
24int pdsc_dl_enable_get(struct devlink *dl, u32 id,
25 struct devlink_param_gset_ctx *ctx,
26 struct netlink_ext_ack *extack)
27{
28 struct pdsc *pdsc = devlink_priv(dl);
29 struct pdsc_viftype *vt_entry;
30
31 vt_entry = pdsc_dl_find_viftype_by_id(pdsc, id);
32 if (!vt_entry)
33 return -ENOENT;
34
35 ctx->val.vbool = vt_entry->enabled;
36
37 return 0;
38}
39
40int pdsc_dl_enable_set(struct devlink *dl, u32 id,
41 struct devlink_param_gset_ctx *ctx,
42 struct netlink_ext_ack *extack)
43{
44 struct pdsc *pdsc = devlink_priv(dl);
45 struct pdsc_viftype *vt_entry;
46 int err = 0;
47 int vf_id;
48
49 vt_entry = pdsc_dl_find_viftype_by_id(pdsc, id);
50 if (!vt_entry || !vt_entry->supported)
51 return -EOPNOTSUPP;
52
53 if (vt_entry->enabled == ctx->val.vbool)
54 return 0;
55
56 vt_entry->enabled = ctx->val.vbool;
57 for (vf_id = 0; vf_id < pdsc->num_vfs; vf_id++) {
58 struct pdsc *vf = pdsc->vfs[vf_id].vf;
59
60 if (ctx->val.vbool)
61 err = pdsc_auxbus_dev_add(vf, pdsc, vt_entry->vif_id,
62 &pdsc->vfs[vf_id].padev);
63 else
64 pdsc_auxbus_dev_del(vf, pdsc, &pdsc->vfs[vf_id].padev);
65 }
66
67 return err;
68}
69
70int pdsc_dl_enable_validate(struct devlink *dl, u32 id,
71 union devlink_param_value *val,
72 struct netlink_ext_ack *extack)
73{
74 struct pdsc *pdsc = devlink_priv(dl);
75 struct pdsc_viftype *vt_entry;
76
77 vt_entry = pdsc_dl_find_viftype_by_id(pdsc, id);
78 if (!vt_entry || !vt_entry->supported)
79 return -EOPNOTSUPP;
80
81 if (!pdsc->viftype_status[vt_entry->vif_id].supported)
82 return -ENODEV;
83
84 return 0;
85}
86
87int pdsc_dl_flash_update(struct devlink *dl,
88 struct devlink_flash_update_params *params,
89 struct netlink_ext_ack *extack)
90{
91 struct pdsc *pdsc = devlink_priv(dl);
92
93 return pdsc_firmware_update(pdsc, params, extack);
94}
95
96static int pdsc_dl_report_component(struct devlink_info_req *req,
97 struct pds_core_fw_component_info *info)
98{
99 enum devlink_info_version_type ver_type;
100 u16 flags = le16_to_cpu(info->flags);
101 char *ver = info->version;
102 const char *name;
103 char buf[32];
104
105 /* Main firmware is reported as generic "fw" */
106 if (info->component_type == PDS_CORE_FW_TYPE_MAIN) {
107 if (info->slot_id == PDS_CORE_FW_SLOT_GOLD)
108 snprintf(buf, sizeof(buf), "fw.gold");
109 else
110 snprintf(buf, sizeof(buf), "fw");
111 } else {
112 name = pdsc_fw_type_to_name(info->component_type);
113 if (!name)
114 return 0;
115
116 if (info->slot_id == PDS_CORE_FW_SLOT_GOLD)
117 snprintf(buf, sizeof(buf), "fw.%s.gold", name);
118 else
119 snprintf(buf, sizeof(buf), "fw.%s", name);
120 }
121
122 ver_type = DEVLINK_INFO_VERSION_TYPE_NONE;
123 if (flags & PDS_CORE_FW_COMPONENT_INFO_F_UPDATE_BY_NAME)
124 ver_type = DEVLINK_INFO_VERSION_TYPE_COMPONENT;
125
126 if (flags & PDS_CORE_FW_COMPONENT_INFO_F_FIXED) {
127 int err;
128
129 err = devlink_info_version_fixed_put(req, buf, ver);
130 if (err)
131 return err;
132 }
133
134 if (flags & PDS_CORE_FW_COMPONENT_INFO_F_RUNNING) {
135 int err;
136
137 err = devlink_info_version_running_put_ext(req, buf,
138 ver, ver_type);
139 if (err)
140 return err;
141 }
142
143 if (flags & PDS_CORE_FW_COMPONENT_INFO_F_STARTUP) {
144 int err;
145
146 err = devlink_info_version_stored_put_ext(req, buf,
147 ver, ver_type);
148 if (err)
149 return err;
150 }
151
152 return 0;
153}
154
155static int pdsc_dl_report_fw_ver(struct devlink_info_req *req, char *fw_ver)
156{
157 return devlink_info_version_running_put(req,
158 DEVLINK_INFO_VERSION_GENERIC_FW,
159 fw_ver);
160}
161
162static int pdsc_dl_component_info_get(struct devlink *dl,
163 struct devlink_info_req *req,
164 struct netlink_ext_ack *extack)
165{
166 struct pdsc *pdsc = devlink_priv(dl);
167 u8 num_components;
168 int err;
169 int i;
170
171 /* Pairs with WRITE_ONCE in pdsc_fw_components_invalidate().
172 * Use READ_ONCE to get a consistent snapshot of num_components.
173 * pdsc_fw_components_invalidate() can zero it concurrently during
174 * firmware recovery; using the local copy avoids iterating zero
175 * times when we already decided the cache was valid.
176 */
177 num_components = READ_ONCE(pdsc->fw_components.num_components);
178 if (!num_components) {
179 err = pdsc_get_component_info(pdsc);
180 if (err)
181 return pdsc_dl_report_fw_ver(req,
182 pdsc->dev_info.fw_version);
183 num_components = READ_ONCE(pdsc->fw_components.num_components);
184 if (!num_components)
185 return pdsc_dl_report_fw_ver(req,
186 pdsc->dev_info.fw_version);
187 }
188
189 num_components = min_t(u16, num_components,
190 le16_to_cpu(pdsc->dev_ident.max_fw_slots));
191 for (i = 0; i < num_components; i++) {
192 err = pdsc_dl_report_component(req,
193 &pdsc->fw_components.info[i]);
194 if (err)
195 return err;
196 }
197
198 return 0;
199}
200
201static char *fw_slotnames[] = {
202 "fw.goldfw",
203 "fw.mainfwa",
204 "fw.mainfwb",
205};
206
207static int pdsc_dl_fw_list_info_get(struct devlink *dl,
208 struct devlink_info_req *req,
209 struct netlink_ext_ack *extack)
210{
211 union pds_core_dev_cmd cmd = {
212 .fw_control.opcode = PDS_CORE_CMD_FW_CONTROL,
213 .fw_control.oper = PDS_CORE_FW_GET_LIST,
214 };
215 struct pds_core_fw_list_info fw_list = {};
216 struct pdsc *pdsc = devlink_priv(dl);
217 union pds_core_dev_comp comp;
218 char buf[32];
219 int listlen;
220 int err;
221 int i;
222
223 mutex_lock(&pdsc->devcmd_lock);
224 err = pdsc_devcmd_locked(pdsc, &cmd, &comp, pdsc->devcmd_timeout * 2);
225 if (!err)
226 memcpy_fromio(&fw_list, pdsc->cmd_regs->data, sizeof(fw_list));
227 mutex_unlock(&pdsc->devcmd_lock);
228
229 listlen = min(fw_list.num_fw_slots, ARRAY_SIZE(fw_list.fw_names));
230 for (i = 0; i < listlen; i++) {
231 char *fw_ver = fw_list.fw_names[i].fw_version;
232
233 if (i < ARRAY_SIZE(fw_slotnames))
234 strscpy(buf, fw_slotnames[i], sizeof(buf));
235 else
236 snprintf(buf, sizeof(buf), "fw.slot_%d", i);
237 fw_ver[sizeof(fw_list.fw_names[i].fw_version) - 1] = '\0';
238 err = devlink_info_version_stored_put(req, buf, fw_ver);
239 if (err)
240 return err;
241 }
242
243 return 0;
244}
245
246static int pdsc_dl_info_get_v1(struct devlink *dl,
247 struct devlink_info_req *req,
248 struct netlink_ext_ack *extack)
249{
250 struct pdsc *pdsc = devlink_priv(dl);
251 int err;
252
253 err = pdsc_dl_fw_list_info_get(dl, req, extack);
254 if (err)
255 return err;
256
257 /* Version 1: report fw from dev_info (running only) */
258 return pdsc_dl_report_fw_ver(req, pdsc->dev_info.fw_version);
259}
260
261int pdsc_dl_info_get(struct devlink *dl, struct devlink_info_req *req,
262 struct netlink_ext_ack *extack)
263{
264 struct pdsc *pdsc = devlink_priv(dl);
265 char buf[32];
266 int err;
267
268 if (pdsc->dev_ident.version >= PDS_CORE_IDENTITY_VERSION_2) {
269 err = pdsc_dl_component_info_get(dl, req, extack);
270 if (err)
271 return err;
272 } else {
273 err = pdsc_dl_info_get_v1(dl, req, extack);
274 if (err)
275 return err;
276 }
277
278 snprintf(buf, sizeof(buf), "0x%x", pdsc->dev_info.asic_type);
279 err = devlink_info_version_fixed_put(req,
280 DEVLINK_INFO_VERSION_GENERIC_ASIC_ID,
281 buf);
282 if (err)
283 return err;
284
285 snprintf(buf, sizeof(buf), "0x%x", pdsc->dev_info.asic_rev);
286 err = devlink_info_version_fixed_put(req,
287 DEVLINK_INFO_VERSION_GENERIC_ASIC_REV,
288 buf);
289 if (err)
290 return err;
291
292 return devlink_info_serial_number_put(req, pdsc->dev_info.serial_num);
293}
294
295int pdsc_fw_reporter_diagnose(struct devlink_health_reporter *reporter,
296 struct devlink_fmsg *fmsg,
297 struct netlink_ext_ack *extack)
298{
299 struct pdsc *pdsc = devlink_health_reporter_priv(reporter);
300
301 mutex_lock(&pdsc->config_lock);
302 if (test_bit(PDSC_S_FW_DEAD, &pdsc->state))
303 devlink_fmsg_string_pair_put(fmsg, "Status", "dead");
304 else if (!pdsc_is_fw_good(pdsc))
305 devlink_fmsg_string_pair_put(fmsg, "Status", "unhealthy");
306 else
307 devlink_fmsg_string_pair_put(fmsg, "Status", "healthy");
308 mutex_unlock(&pdsc->config_lock);
309
310 devlink_fmsg_u32_pair_put(fmsg, "State",
311 pdsc->fw_status & ~PDS_CORE_FW_STS_F_GENERATION);
312 devlink_fmsg_u32_pair_put(fmsg, "Generation", pdsc->fw_generation >> 4);
313 devlink_fmsg_u32_pair_put(fmsg, "Recoveries", pdsc->fw_recoveries);
314
315 return 0;
316}