49  * file system. If not already created, this routine will create the
95  * When Debugfs is configured this routine removes debugfs file system
113  *              or fc_trace_clear debugfs file
114  * @filp: The file pointer to read from.
117  * @ppos: The position in the file to start reading from.
123  * It will start reading file at @ppos and
129 static ssize_t fnic_trace_ctrl_read(struct file *filp,  in fnic_trace_ctrl_read()
145 		pr_err("fnic: Cannot read to any debugfs file\n");  in fnic_trace_ctrl_read()
153  *         fc_trace_clear debugfs file
154  * @filp: The file pointer to write from.
157  * @ppos: The position in the file to start writing to.
167 static ssize_t fnic_trace_ctrl_write(struct file *filp,  in fnic_trace_ctrl_write()
196 		pr_err("fnic: cannot write to any debugfs file\n");  in fnic_trace_ctrl_write()
213  * @file: The file pointer to attach the log output
216  * This routine is the entry point for the debugfs open file operation.
219  * the private_data field in @file.
226 				  struct file *file)  in fnic_trace_debugfs_open()  argument
258 	file->private_data = fnic_dbg_prt;  in fnic_trace_debugfs_open()
264  * fnic_trace_debugfs_lseek - Seek through a debugfs file
265  * @file: The file pointer to seek through.
270  * This routine is the entry point for the debugfs lseek file operation.
273  * figures out what the new offset of the debugfs file will be and assigns
274  * that value to the f_pos field of @file.
280 static loff_t fnic_trace_debugfs_lseek(struct file *file,  in fnic_trace_debugfs_lseek()  argument
284 	fnic_dbgfs_t *fnic_dbg_prt = file->private_data;  in fnic_trace_debugfs_lseek()
285 	return fixed_size_llseek(file, offset, howto,  in fnic_trace_debugfs_lseek()
290  * fnic_trace_debugfs_read - Read a debugfs file
291  * @file: The file pointer to read from.
294  * @pos: The position in the file to start reading from.
298  * field of @file. It will start reading at @pos and copy up to @nbytes of
303  * less than @nbytes if the end of the file was reached).
305 static ssize_t fnic_trace_debugfs_read(struct file *file,  in fnic_trace_debugfs_read()  argument
310 	fnic_dbgfs_t *fnic_dbg_prt = file->private_data;  in fnic_trace_debugfs_read()
320  * debugfs file data
322  * @file: The file pointer that contains the buffer to release
326  * file was opened.
332 					  struct file *file)  in fnic_trace_debugfs_release()  argument
334 	fnic_dbgfs_t *fnic_dbg_prt = file->private_data;  in fnic_trace_debugfs_release()
354  * file system. If not already created, this routine will create the
355  * create file trace to log fnic trace buffer output into debugfs and
356  * it will also create file trace_enable to control enable/disable of
375 			"Cannot create trace_enable file under debugfs\n");  in fnic_trace_debugfs_init()
387 			"Cannot create trace file under debugfs\n");  in fnic_trace_debugfs_init()
398  * When Debugfs is configured this routine removes debugfs file system
416  * file system. If not already created, this routine will create the
417  * create file trace to log fnic fc trace buffer output into debugfs and
418  * it will also create file fc_trace_enable to control enable/disable of
438 		pr_err("fnic: Failed create fc_trace_enable file\n");  in fnic_fc_trace_debugfs_init()
449 		pr_err("fnic: Failed to create fc_trace_enable file\n");  in fnic_fc_trace_debugfs_init()
461 		pr_err("fnic: Failed create fc_rdata_trace file\n");  in fnic_fc_trace_debugfs_init()
473 		pr_err("fnic: Failed to create fc_trace file\n");  in fnic_fc_trace_debugfs_init()
484  * When Debugfs is configured this routine removes debugfs file system
504  * fnic_reset_stats_open - Open the reset_stats file
506  * @file: The file pointer to attach the stats reset flag.
509  * This routine opens a debugsfs file reset_stats and stores i_private data
511  * file oprations.
516 static int fnic_reset_stats_open(struct inode *inode, struct file *file)  in fnic_reset_stats_open()  argument
526 	file->private_data = debug;  in fnic_reset_stats_open()
532  * fnic_reset_stats_read - Read a reset_stats debugfs file
533  * @filp: The file pointer to read from.
536  * @ppos: The position in the file to start reading from.
540  * and stores into local @buf. It will start reading file at @ppos and
546 static ssize_t fnic_reset_stats_read(struct file *file,  in fnic_reset_stats_read()  argument
550 	struct stats_debug_info *debug = file->private_data;  in fnic_reset_stats_read()
561  * fnic_reset_stats_write - Write to reset_stats debugfs file
562  * @filp: The file pointer to write from.
565  * @ppos: The position in the file to start writing to.
574 static ssize_t fnic_reset_stats_write(struct file *file,  in fnic_reset_stats_write()  argument
578 	struct stats_debug_info *debug = file->private_data;  in fnic_reset_stats_write()
627  * debugfs file data
629  * @file: The file pointer that contains the buffer to release
633  * file was opened.
639 					struct file *file)  in fnic_reset_stats_release()  argument
641 	struct stats_debug_info *debug = file->private_data;  in fnic_reset_stats_release()
647  * fnic_stats_debugfs_open - Open the stats file for specific host
650  * @file: The file pointer to attach the specific host statistics.
653  * This routine opens a debugsfs file stats of specific host and print
660 					struct file *file)  in fnic_stats_debugfs_open()  argument
681 	file->private_data = debug;  in fnic_stats_debugfs_open()
687  * fnic_stats_debugfs_read - Read a debugfs file
688  * @file: The file pointer to read from.
691  * @pos: The position in the file to start reading from.
695  * field of @file. It will start reading at @pos and copy up to @nbytes of
700  * less than @nbytes if the end of the file was reached).
702 static ssize_t fnic_stats_debugfs_read(struct file *file,  in fnic_stats_debugfs_read()  argument
707 	struct stats_debug_info *debug = file->private_data;  in fnic_stats_debugfs_read()
717  * debugfs file data
719  * @file: The file pointer that contains the buffer to release
723  * file was opened.
729 					struct file *file)  in fnic_stats_debugfs_release()  argument
731 	struct stats_debug_info *debug = file->private_data;  in fnic_stats_debugfs_release()
753  * fnic_stats_init - Initialize stats struct and create stats file per fnic
756  * When Debugfs is configured this routine sets up the stats file per fnic
757  * It will create file stats and reset_stats under statistics/host# directory
784 		printk(KERN_DEBUG "Cannot create host stats file\n");  in fnic_stats_debugfs_init()
794 		printk(KERN_DEBUG "Cannot create host stats file\n");  in fnic_stats_debugfs_init()
805  * When Debugfs is configured this routine removes debugfs file system