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7#include "qedi.h"
8#include "qedi_dbg.h"
9
10#include <linux/uaccess.h>
11#include <linux/debugfs.h>
12#include <linux/module.h>
13
14int qedi_do_not_recover;
15static struct dentry *qedi_dbg_root;
16
17void
18qedi_dbg_host_init(struct qedi_dbg_ctx *qedi,
19 const struct qedi_debugfs_ops *dops,
20 const struct file_operations *fops)
21{
22 char host_dirname[32];
23
24 sprintf(host_dirname, "host%u", qedi->host_no);
25 qedi->bdf_dentry = debugfs_create_dir(host_dirname, qedi_dbg_root);
26
27 while (dops) {
28 if (!(dops->name))
29 break;
30
31 debugfs_create_file(dops->name, 0600, qedi->bdf_dentry, qedi,
32 fops);
33 dops++;
34 fops++;
35 }
36}
37
38void
39qedi_dbg_host_exit(struct qedi_dbg_ctx *qedi)
40{
41 debugfs_remove_recursive(qedi->bdf_dentry);
42 qedi->bdf_dentry = NULL;
43}
44
45void
46qedi_dbg_init(char *drv_name)
47{
48 qedi_dbg_root = debugfs_create_dir(drv_name, NULL);
49}
50
51void
52qedi_dbg_exit(void)
53{
54 debugfs_remove_recursive(qedi_dbg_root);
55 qedi_dbg_root = NULL;
56}
57
58static ssize_t
59qedi_dbg_do_not_recover_enable(struct qedi_dbg_ctx *qedi_dbg)
60{
61 if (!qedi_do_not_recover)
62 qedi_do_not_recover = 1;
63
64 QEDI_INFO(qedi_dbg, QEDI_LOG_DEBUGFS, "do_not_recover=%d\n",
65 qedi_do_not_recover);
66 return 0;
67}
68
69static ssize_t
70qedi_dbg_do_not_recover_disable(struct qedi_dbg_ctx *qedi_dbg)
71{
72 if (qedi_do_not_recover)
73 qedi_do_not_recover = 0;
74
75 QEDI_INFO(qedi_dbg, QEDI_LOG_DEBUGFS, "do_not_recover=%d\n",
76 qedi_do_not_recover);
77 return 0;
78}
79
80static struct qedi_list_of_funcs qedi_dbg_do_not_recover_ops[] = {
81 { "enable", qedi_dbg_do_not_recover_enable },
82 { "disable", qedi_dbg_do_not_recover_disable },
83 { NULL, NULL }
84};
85
86const struct qedi_debugfs_ops qedi_debugfs_ops[] = {
87 { "gbl_ctx", NULL },
88 { "do_not_recover", qedi_dbg_do_not_recover_ops},
89 { "io_trace", NULL },
90 { NULL, NULL }
91};
92
93static ssize_t
94qedi_dbg_do_not_recover_cmd_write(struct file *filp, const char __user *buffer,
95 size_t count, loff_t *ppos)
96{
97 size_t cnt = 0;
98 struct qedi_dbg_ctx *qedi_dbg =
99 (struct qedi_dbg_ctx *)filp->private_data;
100 struct qedi_list_of_funcs *lof = qedi_dbg_do_not_recover_ops;
101
102 if (*ppos)
103 return 0;
104
105 while (lof) {
106 if (!(lof->oper_str))
107 break;
108
109 if (!strncmp(lof->oper_str, buffer, strlen(lof->oper_str))) {
110 cnt = lof->oper_func(qedi_dbg);
111 break;
112 }
113
114 lof++;
115 }
116 return (count - cnt);
117}
118
119static ssize_t
120qedi_dbg_do_not_recover_cmd_read(struct file *filp, char __user *buffer,
121 size_t count, loff_t *ppos)
122{
123 size_t cnt = 0;
124
125 if (*ppos)
126 return 0;
127
128 cnt = sprintf(buffer, "do_not_recover=%d\n", qedi_do_not_recover);
129 cnt = min_t(int, count, cnt - *ppos);
130 *ppos += cnt;
131 return cnt;
132}
133
134static int
135qedi_gbl_ctx_show(struct seq_file *s, void *unused)
136{
137 struct qedi_fastpath *fp = NULL;
138 struct qed_sb_info *sb_info = NULL;
139 struct status_block_e4 *sb = NULL;
140 struct global_queue *que = NULL;
141 int id;
142 u16 prod_idx;
143 struct qedi_ctx *qedi = s->private;
144 unsigned long flags;
145
146 seq_puts(s, " DUMP CQ CONTEXT:\n");
147
148 for (id = 0; id < MIN_NUM_CPUS_MSIX(qedi); id++) {
149 spin_lock_irqsave(&qedi->hba_lock, flags);
150 seq_printf(s, "=========FAST CQ PATH [%d] ==========\n", id);
151 fp = &qedi->fp_array[id];
152 sb_info = fp->sb_info;
153 sb = sb_info->sb_virt;
154 prod_idx = (sb->pi_array[QEDI_PROTO_CQ_PROD_IDX] &
155 STATUS_BLOCK_E4_PROD_INDEX_MASK);
156 seq_printf(s, "SB PROD IDX: %d\n", prod_idx);
157 que = qedi->global_queues[fp->sb_id];
158 seq_printf(s, "DRV CONS IDX: %d\n", que->cq_cons_idx);
159 seq_printf(s, "CQ complete host memory: %d\n", fp->sb_id);
160 seq_puts(s, "=========== END ==================\n\n\n");
161 spin_unlock_irqrestore(&qedi->hba_lock, flags);
162 }
163 return 0;
164}
165
166static int
167qedi_dbg_gbl_ctx_open(struct inode *inode, struct file *file)
168{
169 struct qedi_dbg_ctx *qedi_dbg = inode->i_private;
170 struct qedi_ctx *qedi = container_of(qedi_dbg, struct qedi_ctx,
171 dbg_ctx);
172
173 return single_open(file, qedi_gbl_ctx_show, qedi);
174}
175
176static int
177qedi_io_trace_show(struct seq_file *s, void *unused)
178{
179 int id, idx = 0;
180 struct qedi_ctx *qedi = s->private;
181 struct qedi_io_log *io_log;
182 unsigned long flags;
183
184 seq_puts(s, " DUMP IO LOGS:\n");
185 spin_lock_irqsave(&qedi->io_trace_lock, flags);
186 idx = qedi->io_trace_idx;
187 for (id = 0; id < QEDI_IO_TRACE_SIZE; id++) {
188 io_log = &qedi->io_trace_buf[idx];
189 seq_printf(s, "iodir-%d:", io_log->direction);
190 seq_printf(s, "tid-0x%x:", io_log->task_id);
191 seq_printf(s, "cid-0x%x:", io_log->cid);
192 seq_printf(s, "lun-%d:", io_log->lun);
193 seq_printf(s, "op-0x%02x:", io_log->op);
194 seq_printf(s, "0x%02x%02x%02x%02x:", io_log->lba[0],
195 io_log->lba[1], io_log->lba[2], io_log->lba[3]);
196 seq_printf(s, "buflen-%d:", io_log->bufflen);
197 seq_printf(s, "sgcnt-%d:", io_log->sg_count);
198 seq_printf(s, "res-0x%08x:", io_log->result);
199 seq_printf(s, "jif-%lu:", io_log->jiffies);
200 seq_printf(s, "blk_req_cpu-%d:", io_log->blk_req_cpu);
201 seq_printf(s, "req_cpu-%d:", io_log->req_cpu);
202 seq_printf(s, "intr_cpu-%d:", io_log->intr_cpu);
203 seq_printf(s, "blk_rsp_cpu-%d\n", io_log->blk_rsp_cpu);
204
205 idx++;
206 if (idx == QEDI_IO_TRACE_SIZE)
207 idx = 0;
208 }
209 spin_unlock_irqrestore(&qedi->io_trace_lock, flags);
210 return 0;
211}
212
213static int
214qedi_dbg_io_trace_open(struct inode *inode, struct file *file)
215{
216 struct qedi_dbg_ctx *qedi_dbg = inode->i_private;
217 struct qedi_ctx *qedi = container_of(qedi_dbg, struct qedi_ctx,
218 dbg_ctx);
219
220 return single_open(file, qedi_io_trace_show, qedi);
221}
222
223const struct file_operations qedi_dbg_fops[] = {
224 qedi_dbg_fileops_seq(qedi, gbl_ctx),
225 qedi_dbg_fileops(qedi, do_not_recover),
226 qedi_dbg_fileops_seq(qedi, io_trace),
227 { },
228};
229
