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
7 static struct
pdsc_dl_find_viftype_by_id(struct pdsc * pdsc,enum devlink_param_type dl_id)8 pdsc_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
pdsc_dl_enable_get(struct devlink * dl,u32 id,struct devlink_param_gset_ctx * ctx)24 int pdsc_dl_enable_get(struct devlink *dl, u32 id,
25 struct devlink_param_gset_ctx *ctx)
26 {
27 struct pdsc *pdsc = devlink_priv(dl);
28 struct pdsc_viftype *vt_entry;
29
30 vt_entry = pdsc_dl_find_viftype_by_id(pdsc, id);
31 if (!vt_entry)
32 return -ENOENT;
33
34 ctx->val.vbool = vt_entry->enabled;
35
36 return 0;
37 }
38
pdsc_dl_enable_set(struct devlink * dl,u32 id,struct devlink_param_gset_ctx * ctx,struct netlink_ext_ack * extack)39 int pdsc_dl_enable_set(struct devlink *dl, u32 id,
40 struct devlink_param_gset_ctx *ctx,
41 struct netlink_ext_ack *extack)
42 {
43 struct pdsc *pdsc = devlink_priv(dl);
44 struct pdsc_viftype *vt_entry;
45 int err = 0;
46 int vf_id;
47
48 vt_entry = pdsc_dl_find_viftype_by_id(pdsc, id);
49 if (!vt_entry || !vt_entry->supported)
50 return -EOPNOTSUPP;
51
52 if (vt_entry->enabled == ctx->val.vbool)
53 return 0;
54
55 vt_entry->enabled = ctx->val.vbool;
56 for (vf_id = 0; vf_id < pdsc->num_vfs; vf_id++) {
57 struct pdsc *vf = pdsc->vfs[vf_id].vf;
58
59 if (ctx->val.vbool)
60 err = pdsc_auxbus_dev_add(vf, pdsc, vt_entry->vif_id,
61 &pdsc->vfs[vf_id].padev);
62 else
63 pdsc_auxbus_dev_del(vf, pdsc, &pdsc->vfs[vf_id].padev);
64 }
65
66 return err;
67 }
68
pdsc_dl_enable_validate(struct devlink * dl,u32 id,union devlink_param_value val,struct netlink_ext_ack * extack)69 int pdsc_dl_enable_validate(struct devlink *dl, u32 id,
70 union devlink_param_value val,
71 struct netlink_ext_ack *extack)
72 {
73 struct pdsc *pdsc = devlink_priv(dl);
74 struct pdsc_viftype *vt_entry;
75
76 vt_entry = pdsc_dl_find_viftype_by_id(pdsc, id);
77 if (!vt_entry || !vt_entry->supported)
78 return -EOPNOTSUPP;
79
80 if (!pdsc->viftype_status[vt_entry->vif_id].supported)
81 return -ENODEV;
82
83 return 0;
84 }
85
pdsc_dl_flash_update(struct devlink * dl,struct devlink_flash_update_params * params,struct netlink_ext_ack * extack)86 int pdsc_dl_flash_update(struct devlink *dl,
87 struct devlink_flash_update_params *params,
88 struct netlink_ext_ack *extack)
89 {
90 struct pdsc *pdsc = devlink_priv(dl);
91
92 return pdsc_firmware_update(pdsc, params->fw, extack);
93 }
94
95 static char *fw_slotnames[] = {
96 "fw.goldfw",
97 "fw.mainfwa",
98 "fw.mainfwb",
99 };
100
pdsc_dl_info_get(struct devlink * dl,struct devlink_info_req * req,struct netlink_ext_ack * extack)101 int pdsc_dl_info_get(struct devlink *dl, struct devlink_info_req *req,
102 struct netlink_ext_ack *extack)
103 {
104 union pds_core_dev_cmd cmd = {
105 .fw_control.opcode = PDS_CORE_CMD_FW_CONTROL,
106 .fw_control.oper = PDS_CORE_FW_GET_LIST,
107 };
108 struct pds_core_fw_list_info fw_list = {};
109 struct pdsc *pdsc = devlink_priv(dl);
110 union pds_core_dev_comp comp;
111 char buf[32];
112 int listlen;
113 int err;
114 int i;
115
116 mutex_lock(&pdsc->devcmd_lock);
117 err = pdsc_devcmd_locked(pdsc, &cmd, &comp, pdsc->devcmd_timeout * 2);
118 if (!err)
119 memcpy_fromio(&fw_list, pdsc->cmd_regs->data, sizeof(fw_list));
120 mutex_unlock(&pdsc->devcmd_lock);
121
122 listlen = min(fw_list.num_fw_slots, ARRAY_SIZE(fw_list.fw_names));
123 for (i = 0; i < listlen; i++) {
124 if (i < ARRAY_SIZE(fw_slotnames))
125 strscpy(buf, fw_slotnames[i], sizeof(buf));
126 else
127 snprintf(buf, sizeof(buf), "fw.slot_%d", i);
128 err = devlink_info_version_stored_put(req, buf,
129 fw_list.fw_names[i].fw_version);
130 if (err)
131 return err;
132 }
133
134 err = devlink_info_version_running_put(req,
135 DEVLINK_INFO_VERSION_GENERIC_FW,
136 pdsc->dev_info.fw_version);
137 if (err)
138 return err;
139
140 snprintf(buf, sizeof(buf), "0x%x", pdsc->dev_info.asic_type);
141 err = devlink_info_version_fixed_put(req,
142 DEVLINK_INFO_VERSION_GENERIC_ASIC_ID,
143 buf);
144 if (err)
145 return err;
146
147 snprintf(buf, sizeof(buf), "0x%x", pdsc->dev_info.asic_rev);
148 err = devlink_info_version_fixed_put(req,
149 DEVLINK_INFO_VERSION_GENERIC_ASIC_REV,
150 buf);
151 if (err)
152 return err;
153
154 return devlink_info_serial_number_put(req, pdsc->dev_info.serial_num);
155 }
156
pdsc_fw_reporter_diagnose(struct devlink_health_reporter * reporter,struct devlink_fmsg * fmsg,struct netlink_ext_ack * extack)157 int pdsc_fw_reporter_diagnose(struct devlink_health_reporter *reporter,
158 struct devlink_fmsg *fmsg,
159 struct netlink_ext_ack *extack)
160 {
161 struct pdsc *pdsc = devlink_health_reporter_priv(reporter);
162
163 mutex_lock(&pdsc->config_lock);
164 if (test_bit(PDSC_S_FW_DEAD, &pdsc->state))
165 devlink_fmsg_string_pair_put(fmsg, "Status", "dead");
166 else if (!pdsc_is_fw_good(pdsc))
167 devlink_fmsg_string_pair_put(fmsg, "Status", "unhealthy");
168 else
169 devlink_fmsg_string_pair_put(fmsg, "Status", "healthy");
170 mutex_unlock(&pdsc->config_lock);
171
172 devlink_fmsg_u32_pair_put(fmsg, "State",
173 pdsc->fw_status & ~PDS_CORE_FW_STS_F_GENERATION);
174 devlink_fmsg_u32_pair_put(fmsg, "Generation", pdsc->fw_generation >> 4);
175 devlink_fmsg_u32_pair_put(fmsg, "Recoveries", pdsc->fw_recoveries);
176
177 return 0;
178 }
179