2 * QLogic iSCSI Offload Driver
3 * Copyright (c) 2016 Cavium Inc.
5 * This software is available under the terms of the GNU General Public License
6 * (GPL) Version 2, available from the file COPYING in the main directory of
13 #include <linux/uaccess.h>
14 #include <linux/debugfs.h>
15 #include <linux/module.h>
17 int qedi_do_not_recover;
18 static struct dentry *qedi_dbg_root;
21 qedi_dbg_host_init(struct qedi_dbg_ctx *qedi,
22 const struct qedi_debugfs_ops *dops,
23 const struct file_operations *fops)
25 char host_dirname[32];
26 struct dentry *file_dentry = NULL;
28 sprintf(host_dirname, "host%u", qedi->host_no);
29 qedi->bdf_dentry = debugfs_create_dir(host_dirname, qedi_dbg_root);
30 if (!qedi->bdf_dentry)
37 file_dentry = debugfs_create_file(dops->name, 0600,
38 qedi->bdf_dentry, qedi,
41 QEDI_INFO(qedi, QEDI_LOG_DEBUGFS,
42 "Debugfs entry %s creation failed\n",
44 debugfs_remove_recursive(qedi->bdf_dentry);
53 qedi_dbg_host_exit(struct qedi_dbg_ctx *qedi)
55 debugfs_remove_recursive(qedi->bdf_dentry);
56 qedi->bdf_dentry = NULL;
60 qedi_dbg_init(char *drv_name)
62 qedi_dbg_root = debugfs_create_dir(drv_name, NULL);
64 QEDI_INFO(NULL, QEDI_LOG_DEBUGFS, "Init of debugfs failed\n");
70 debugfs_remove_recursive(qedi_dbg_root);
75 qedi_dbg_do_not_recover_enable(struct qedi_dbg_ctx *qedi_dbg)
77 if (!qedi_do_not_recover)
78 qedi_do_not_recover = 1;
80 QEDI_INFO(qedi_dbg, QEDI_LOG_DEBUGFS, "do_not_recover=%d\n",
86 qedi_dbg_do_not_recover_disable(struct qedi_dbg_ctx *qedi_dbg)
88 if (qedi_do_not_recover)
89 qedi_do_not_recover = 0;
91 QEDI_INFO(qedi_dbg, QEDI_LOG_DEBUGFS, "do_not_recover=%d\n",
96 static struct qedi_list_of_funcs qedi_dbg_do_not_recover_ops[] = {
97 { "enable", qedi_dbg_do_not_recover_enable },
98 { "disable", qedi_dbg_do_not_recover_disable },
102 const struct qedi_debugfs_ops qedi_debugfs_ops[] = {
104 { "do_not_recover", qedi_dbg_do_not_recover_ops},
105 { "io_trace", NULL },
110 qedi_dbg_do_not_recover_cmd_write(struct file *filp, const char __user *buffer,
111 size_t count, loff_t *ppos)
114 struct qedi_dbg_ctx *qedi_dbg =
115 (struct qedi_dbg_ctx *)filp->private_data;
116 struct qedi_list_of_funcs *lof = qedi_dbg_do_not_recover_ops;
122 if (!(lof->oper_str))
125 if (!strncmp(lof->oper_str, buffer, strlen(lof->oper_str))) {
126 cnt = lof->oper_func(qedi_dbg);
132 return (count - cnt);
136 qedi_dbg_do_not_recover_cmd_read(struct file *filp, char __user *buffer,
137 size_t count, loff_t *ppos)
144 cnt = sprintf(buffer, "do_not_recover=%d\n", qedi_do_not_recover);
145 cnt = min_t(int, count, cnt - *ppos);
151 qedi_gbl_ctx_show(struct seq_file *s, void *unused)
153 struct qedi_fastpath *fp = NULL;
154 struct qed_sb_info *sb_info = NULL;
155 struct status_block_e4 *sb = NULL;
156 struct global_queue *que = NULL;
159 struct qedi_ctx *qedi = s->private;
162 seq_puts(s, " DUMP CQ CONTEXT:\n");
164 for (id = 0; id < MIN_NUM_CPUS_MSIX(qedi); id++) {
165 spin_lock_irqsave(&qedi->hba_lock, flags);
166 seq_printf(s, "=========FAST CQ PATH [%d] ==========\n", id);
167 fp = &qedi->fp_array[id];
168 sb_info = fp->sb_info;
169 sb = sb_info->sb_virt;
170 prod_idx = (sb->pi_array[QEDI_PROTO_CQ_PROD_IDX] &
171 STATUS_BLOCK_E4_PROD_INDEX_MASK);
172 seq_printf(s, "SB PROD IDX: %d\n", prod_idx);
173 que = qedi->global_queues[fp->sb_id];
174 seq_printf(s, "DRV CONS IDX: %d\n", que->cq_cons_idx);
175 seq_printf(s, "CQ complete host memory: %d\n", fp->sb_id);
176 seq_puts(s, "=========== END ==================\n\n\n");
177 spin_unlock_irqrestore(&qedi->hba_lock, flags);
183 qedi_dbg_gbl_ctx_open(struct inode *inode, struct file *file)
185 struct qedi_dbg_ctx *qedi_dbg = inode->i_private;
186 struct qedi_ctx *qedi = container_of(qedi_dbg, struct qedi_ctx,
189 return single_open(file, qedi_gbl_ctx_show, qedi);
193 qedi_io_trace_show(struct seq_file *s, void *unused)
196 struct qedi_ctx *qedi = s->private;
197 struct qedi_io_log *io_log;
200 seq_puts(s, " DUMP IO LOGS:\n");
201 spin_lock_irqsave(&qedi->io_trace_lock, flags);
202 idx = qedi->io_trace_idx;
203 for (id = 0; id < QEDI_IO_TRACE_SIZE; id++) {
204 io_log = &qedi->io_trace_buf[idx];
205 seq_printf(s, "iodir-%d:", io_log->direction);
206 seq_printf(s, "tid-0x%x:", io_log->task_id);
207 seq_printf(s, "cid-0x%x:", io_log->cid);
208 seq_printf(s, "lun-%d:", io_log->lun);
209 seq_printf(s, "op-0x%02x:", io_log->op);
210 seq_printf(s, "0x%02x%02x%02x%02x:", io_log->lba[0],
211 io_log->lba[1], io_log->lba[2], io_log->lba[3]);
212 seq_printf(s, "buflen-%d:", io_log->bufflen);
213 seq_printf(s, "sgcnt-%d:", io_log->sg_count);
214 seq_printf(s, "res-0x%08x:", io_log->result);
215 seq_printf(s, "jif-%lu:", io_log->jiffies);
216 seq_printf(s, "blk_req_cpu-%d:", io_log->blk_req_cpu);
217 seq_printf(s, "req_cpu-%d:", io_log->req_cpu);
218 seq_printf(s, "intr_cpu-%d:", io_log->intr_cpu);
219 seq_printf(s, "blk_rsp_cpu-%d\n", io_log->blk_rsp_cpu);
222 if (idx == QEDI_IO_TRACE_SIZE)
225 spin_unlock_irqrestore(&qedi->io_trace_lock, flags);
230 qedi_dbg_io_trace_open(struct inode *inode, struct file *file)
232 struct qedi_dbg_ctx *qedi_dbg = inode->i_private;
233 struct qedi_ctx *qedi = container_of(qedi_dbg, struct qedi_ctx,
236 return single_open(file, qedi_io_trace_show, qedi);
239 const struct file_operations qedi_dbg_fops[] = {
240 qedi_dbg_fileops_seq(qedi, gbl_ctx),
241 qedi_dbg_fileops(qedi, do_not_recover),
242 qedi_dbg_fileops_seq(qedi, io_trace),