1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
|
// SPDX-License-Identifier: GPL-2.0-only
/*
* QLogic iSCSI Offload Driver
* Copyright (c) 2016 Cavium Inc.
*/
#include "qedi.h"
#include "qedi_dbg.h"
#include <linux/uaccess.h>
#include <linux/debugfs.h>
#include <linux/module.h>
int qedi_do_not_recover;
static struct dentry *qedi_dbg_root;
void
qedi_dbg_host_init(struct qedi_dbg_ctx *qedi,
const struct qedi_debugfs_ops *dops,
const struct file_operations *fops)
{
char host_dirname[32];
sprintf(host_dirname, "host%u", qedi->host_no);
qedi->bdf_dentry = debugfs_create_dir(host_dirname, qedi_dbg_root);
while (dops) {
if (!(dops->name))
break;
debugfs_create_file(dops->name, 0600, qedi->bdf_dentry, qedi,
fops);
dops++;
fops++;
}
}
void
qedi_dbg_host_exit(struct qedi_dbg_ctx *qedi)
{
debugfs_remove_recursive(qedi->bdf_dentry);
qedi->bdf_dentry = NULL;
}
void
qedi_dbg_init(char *drv_name)
{
qedi_dbg_root = debugfs_create_dir(drv_name, NULL);
}
void
qedi_dbg_exit(void)
{
debugfs_remove_recursive(qedi_dbg_root);
qedi_dbg_root = NULL;
}
static ssize_t
qedi_dbg_do_not_recover_enable(struct qedi_dbg_ctx *qedi_dbg)
{
if (!qedi_do_not_recover)
qedi_do_not_recover = 1;
QEDI_INFO(qedi_dbg, QEDI_LOG_DEBUGFS, "do_not_recover=%d\n",
qedi_do_not_recover);
return 0;
}
static ssize_t
qedi_dbg_do_not_recover_disable(struct qedi_dbg_ctx *qedi_dbg)
{
if (qedi_do_not_recover)
qedi_do_not_recover = 0;
QEDI_INFO(qedi_dbg, QEDI_LOG_DEBUGFS, "do_not_recover=%d\n",
qedi_do_not_recover);
return 0;
}
static struct qedi_list_of_funcs qedi_dbg_do_not_recover_ops[] = {
{ "enable", qedi_dbg_do_not_recover_enable },
{ "disable", qedi_dbg_do_not_recover_disable },
{ NULL, NULL }
};
const struct qedi_debugfs_ops qedi_debugfs_ops[] = {
{ "gbl_ctx", NULL },
{ "do_not_recover", qedi_dbg_do_not_recover_ops},
{ "io_trace", NULL },
{ NULL, NULL }
};
static ssize_t
qedi_dbg_do_not_recover_cmd_write(struct file *filp, const char __user *buffer,
size_t count, loff_t *ppos)
{
size_t cnt = 0;
struct qedi_dbg_ctx *qedi_dbg =
(struct qedi_dbg_ctx *)filp->private_data;
struct qedi_list_of_funcs *lof = qedi_dbg_do_not_recover_ops;
if (*ppos)
return 0;
while (lof) {
if (!(lof->oper_str))
break;
if (!strncmp(lof->oper_str, buffer, strlen(lof->oper_str))) {
cnt = lof->oper_func(qedi_dbg);
break;
}
lof++;
}
return (count - cnt);
}
static ssize_t
qedi_dbg_do_not_recover_cmd_read(struct file *filp, char __user *buffer,
size_t count, loff_t *ppos)
{
size_t cnt = 0;
if (*ppos)
return 0;
cnt = sprintf(buffer, "do_not_recover=%d\n", qedi_do_not_recover);
cnt = min_t(int, count, cnt - *ppos);
*ppos += cnt;
return cnt;
}
static int
qedi_gbl_ctx_show(struct seq_file *s, void *unused)
{
struct qedi_fastpath *fp = NULL;
struct qed_sb_info *sb_info = NULL;
struct status_block_e4 *sb = NULL;
struct global_queue *que = NULL;
int id;
u16 prod_idx;
struct qedi_ctx *qedi = s->private;
unsigned long flags;
seq_puts(s, " DUMP CQ CONTEXT:\n");
for (id = 0; id < MIN_NUM_CPUS_MSIX(qedi); id++) {
spin_lock_irqsave(&qedi->hba_lock, flags);
seq_printf(s, "=========FAST CQ PATH [%d] ==========\n", id);
fp = &qedi->fp_array[id];
sb_info = fp->sb_info;
sb = sb_info->sb_virt;
prod_idx = (sb->pi_array[QEDI_PROTO_CQ_PROD_IDX] &
STATUS_BLOCK_E4_PROD_INDEX_MASK);
seq_printf(s, "SB PROD IDX: %d\n", prod_idx);
que = qedi->global_queues[fp->sb_id];
seq_printf(s, "DRV CONS IDX: %d\n", que->cq_cons_idx);
seq_printf(s, "CQ complete host memory: %d\n", fp->sb_id);
seq_puts(s, "=========== END ==================\n\n\n");
spin_unlock_irqrestore(&qedi->hba_lock, flags);
}
return 0;
}
static int
qedi_dbg_gbl_ctx_open(struct inode *inode, struct file *file)
{
struct qedi_dbg_ctx *qedi_dbg = inode->i_private;
struct qedi_ctx *qedi = container_of(qedi_dbg, struct qedi_ctx,
dbg_ctx);
return single_open(file, qedi_gbl_ctx_show, qedi);
}
static int
qedi_io_trace_show(struct seq_file *s, void *unused)
{
int id, idx = 0;
struct qedi_ctx *qedi = s->private;
struct qedi_io_log *io_log;
unsigned long flags;
seq_puts(s, " DUMP IO LOGS:\n");
spin_lock_irqsave(&qedi->io_trace_lock, flags);
idx = qedi->io_trace_idx;
for (id = 0; id < QEDI_IO_TRACE_SIZE; id++) {
io_log = &qedi->io_trace_buf[idx];
seq_printf(s, "iodir-%d:", io_log->direction);
seq_printf(s, "tid-0x%x:", io_log->task_id);
seq_printf(s, "cid-0x%x:", io_log->cid);
seq_printf(s, "lun-%d:", io_log->lun);
seq_printf(s, "op-0x%02x:", io_log->op);
seq_printf(s, "0x%02x%02x%02x%02x:", io_log->lba[0],
io_log->lba[1], io_log->lba[2], io_log->lba[3]);
seq_printf(s, "buflen-%d:", io_log->bufflen);
seq_printf(s, "sgcnt-%d:", io_log->sg_count);
seq_printf(s, "res-0x%08x:", io_log->result);
seq_printf(s, "jif-%lu:", io_log->jiffies);
seq_printf(s, "blk_req_cpu-%d:", io_log->blk_req_cpu);
seq_printf(s, "req_cpu-%d:", io_log->req_cpu);
seq_printf(s, "intr_cpu-%d:", io_log->intr_cpu);
seq_printf(s, "blk_rsp_cpu-%d\n", io_log->blk_rsp_cpu);
idx++;
if (idx == QEDI_IO_TRACE_SIZE)
idx = 0;
}
spin_unlock_irqrestore(&qedi->io_trace_lock, flags);
return 0;
}
static int
qedi_dbg_io_trace_open(struct inode *inode, struct file *file)
{
struct qedi_dbg_ctx *qedi_dbg = inode->i_private;
struct qedi_ctx *qedi = container_of(qedi_dbg, struct qedi_ctx,
dbg_ctx);
return single_open(file, qedi_io_trace_show, qedi);
}
const struct file_operations qedi_dbg_fops[] = {
qedi_dbg_fileops_seq(qedi, gbl_ctx),
qedi_dbg_fileops(qedi, do_not_recover),
qedi_dbg_fileops_seq(qedi, io_trace),
{ },
};
|
