1
2
3
4
5
6
7#include <linux/kernel.h>
8#include <linux/qed/qed_if.h>
9#include <linux/vmalloc.h>
10#include "qed.h"
11#include "qed_devlink.h"
12
13enum qed_devlink_param_id {
14 QED_DEVLINK_PARAM_ID_BASE = DEVLINK_PARAM_GENERIC_ID_MAX,
15 QED_DEVLINK_PARAM_ID_IWARP_CMT,
16};
17
18struct qed_fw_fatal_ctx {
19 enum qed_hw_err_type err_type;
20};
21
22int qed_report_fatal_error(struct devlink *devlink, enum qed_hw_err_type err_type)
23{
24 struct qed_devlink *qdl = devlink_priv(devlink);
25 struct qed_fw_fatal_ctx fw_fatal_ctx = {
26 .err_type = err_type,
27 };
28
29 if (qdl->fw_reporter)
30 devlink_health_report(qdl->fw_reporter,
31 "Fatal error occurred", &fw_fatal_ctx);
32
33 return 0;
34}
35
36static int
37qed_fw_fatal_reporter_dump(struct devlink_health_reporter *reporter,
38 struct devlink_fmsg *fmsg, void *priv_ctx,
39 struct netlink_ext_ack *extack)
40{
41 struct qed_devlink *qdl = devlink_health_reporter_priv(reporter);
42 struct qed_fw_fatal_ctx *fw_fatal_ctx = priv_ctx;
43 struct qed_dev *cdev = qdl->cdev;
44 u32 dbg_data_buf_size;
45 u8 *p_dbg_data_buf;
46 int err;
47
48
49
50
51
52 cdev->print_dbg_data = fw_fatal_ctx ? true : false;
53
54 dbg_data_buf_size = qed_dbg_all_data_size(cdev);
55 p_dbg_data_buf = vzalloc(dbg_data_buf_size);
56 if (!p_dbg_data_buf) {
57 DP_NOTICE(cdev,
58 "Failed to allocate memory for a debug data buffer\n");
59 return -ENOMEM;
60 }
61
62 err = qed_dbg_all_data(cdev, p_dbg_data_buf);
63 if (err) {
64 DP_NOTICE(cdev, "Failed to obtain debug data\n");
65 vfree(p_dbg_data_buf);
66 return err;
67 }
68
69 err = devlink_fmsg_binary_pair_put(fmsg, "dump_data",
70 p_dbg_data_buf, dbg_data_buf_size);
71
72 vfree(p_dbg_data_buf);
73
74 return err;
75}
76
77static int
78qed_fw_fatal_reporter_recover(struct devlink_health_reporter *reporter,
79 void *priv_ctx,
80 struct netlink_ext_ack *extack)
81{
82 struct qed_devlink *qdl = devlink_health_reporter_priv(reporter);
83 struct qed_dev *cdev = qdl->cdev;
84
85 qed_recovery_process(cdev);
86
87 return 0;
88}
89
90static const struct devlink_health_reporter_ops qed_fw_fatal_reporter_ops = {
91 .name = "fw_fatal",
92 .recover = qed_fw_fatal_reporter_recover,
93 .dump = qed_fw_fatal_reporter_dump,
94};
95
96#define QED_REPORTER_FW_GRACEFUL_PERIOD 0
97
98void qed_fw_reporters_create(struct devlink *devlink)
99{
100 struct qed_devlink *dl = devlink_priv(devlink);
101
102 dl->fw_reporter = devlink_health_reporter_create(devlink, &qed_fw_fatal_reporter_ops,
103 QED_REPORTER_FW_GRACEFUL_PERIOD, dl);
104 if (IS_ERR(dl->fw_reporter)) {
105 DP_NOTICE(dl->cdev, "Failed to create fw reporter, err = %ld\n",
106 PTR_ERR(dl->fw_reporter));
107 dl->fw_reporter = NULL;
108 }
109}
110
111void qed_fw_reporters_destroy(struct devlink *devlink)
112{
113 struct qed_devlink *dl = devlink_priv(devlink);
114 struct devlink_health_reporter *rep;
115
116 rep = dl->fw_reporter;
117
118 if (!IS_ERR_OR_NULL(rep))
119 devlink_health_reporter_destroy(rep);
120}
121
122static int qed_dl_param_get(struct devlink *dl, u32 id,
123 struct devlink_param_gset_ctx *ctx)
124{
125 struct qed_devlink *qed_dl = devlink_priv(dl);
126 struct qed_dev *cdev;
127
128 cdev = qed_dl->cdev;
129 ctx->val.vbool = cdev->iwarp_cmt;
130
131 return 0;
132}
133
134static int qed_dl_param_set(struct devlink *dl, u32 id,
135 struct devlink_param_gset_ctx *ctx)
136{
137 struct qed_devlink *qed_dl = devlink_priv(dl);
138 struct qed_dev *cdev;
139
140 cdev = qed_dl->cdev;
141 cdev->iwarp_cmt = ctx->val.vbool;
142
143 return 0;
144}
145
146static const struct devlink_param qed_devlink_params[] = {
147 DEVLINK_PARAM_DRIVER(QED_DEVLINK_PARAM_ID_IWARP_CMT,
148 "iwarp_cmt", DEVLINK_PARAM_TYPE_BOOL,
149 BIT(DEVLINK_PARAM_CMODE_RUNTIME),
150 qed_dl_param_get, qed_dl_param_set, NULL),
151};
152
153static int qed_devlink_info_get(struct devlink *devlink,
154 struct devlink_info_req *req,
155 struct netlink_ext_ack *extack)
156{
157 struct qed_devlink *qed_dl = devlink_priv(devlink);
158 struct qed_dev *cdev = qed_dl->cdev;
159 struct qed_dev_info *dev_info;
160 char buf[100];
161 int err;
162
163 dev_info = &cdev->common_dev_info;
164
165 err = devlink_info_driver_name_put(req, KBUILD_MODNAME);
166 if (err)
167 return err;
168
169 memcpy(buf, cdev->hwfns[0].hw_info.part_num, sizeof(cdev->hwfns[0].hw_info.part_num));
170 buf[sizeof(cdev->hwfns[0].hw_info.part_num)] = 0;
171
172 if (buf[0]) {
173 err = devlink_info_board_serial_number_put(req, buf);
174 if (err)
175 return err;
176 }
177
178 snprintf(buf, sizeof(buf), "%d.%d.%d.%d",
179 GET_MFW_FIELD(dev_info->mfw_rev, QED_MFW_VERSION_3),
180 GET_MFW_FIELD(dev_info->mfw_rev, QED_MFW_VERSION_2),
181 GET_MFW_FIELD(dev_info->mfw_rev, QED_MFW_VERSION_1),
182 GET_MFW_FIELD(dev_info->mfw_rev, QED_MFW_VERSION_0));
183
184 err = devlink_info_version_stored_put(req,
185 DEVLINK_INFO_VERSION_GENERIC_FW_MGMT, buf);
186 if (err)
187 return err;
188
189 snprintf(buf, sizeof(buf), "%d.%d.%d.%d",
190 dev_info->fw_major,
191 dev_info->fw_minor,
192 dev_info->fw_rev,
193 dev_info->fw_eng);
194
195 return devlink_info_version_running_put(req,
196 DEVLINK_INFO_VERSION_GENERIC_FW_APP, buf);
197}
198
199static const struct devlink_ops qed_dl_ops = {
200 .info_get = qed_devlink_info_get,
201};
202
203struct devlink *qed_devlink_register(struct qed_dev *cdev)
204{
205 union devlink_param_value value;
206 struct qed_devlink *qdevlink;
207 struct devlink *dl;
208 int rc;
209
210 dl = devlink_alloc(&qed_dl_ops, sizeof(struct qed_devlink),
211 &cdev->pdev->dev);
212 if (!dl)
213 return ERR_PTR(-ENOMEM);
214
215 qdevlink = devlink_priv(dl);
216 qdevlink->cdev = cdev;
217
218 rc = devlink_register(dl);
219 if (rc)
220 goto err_free;
221
222 rc = devlink_params_register(dl, qed_devlink_params,
223 ARRAY_SIZE(qed_devlink_params));
224 if (rc)
225 goto err_unregister;
226
227 value.vbool = false;
228 devlink_param_driverinit_value_set(dl,
229 QED_DEVLINK_PARAM_ID_IWARP_CMT,
230 value);
231
232 devlink_params_publish(dl);
233 cdev->iwarp_cmt = false;
234
235 qed_fw_reporters_create(dl);
236
237 return dl;
238
239err_unregister:
240 devlink_unregister(dl);
241
242err_free:
243 devlink_free(dl);
244
245 return ERR_PTR(rc);
246}
247
248void qed_devlink_unregister(struct devlink *devlink)
249{
250 if (!devlink)
251 return;
252
253 qed_fw_reporters_destroy(devlink);
254
255 devlink_params_unregister(devlink, qed_devlink_params,
256 ARRAY_SIZE(qed_devlink_params));
257
258 devlink_unregister(devlink);
259 devlink_free(devlink);
260}
261
