patch-2.4.22 linux-2.4.22/arch/ia64/sn/kernel/sn2/sn_proc_fs.c
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- Lines: 125
- Date:
2003-08-25 04:44:39.000000000 -0700
- Orig file:
linux-2.4.21/arch/ia64/sn/kernel/sn2/sn_proc_fs.c
- Orig date:
2003-06-13 07:51:31.000000000 -0700
diff -urN linux-2.4.21/arch/ia64/sn/kernel/sn2/sn_proc_fs.c linux-2.4.22/arch/ia64/sn/kernel/sn2/sn_proc_fs.c
@@ -1,6 +1,6 @@
/*
*
- * Copyright (C) 2000-2002 Silicon Graphics, Inc. All rights reserved.
+ * Copyright (C) 2000-2003 Silicon Graphics, Inc. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License
@@ -31,6 +31,7 @@
* http://oss.sgi.com/projects/GenInfo/NoticeExplan
*/
#include <linux/config.h>
+#include <asm/uaccess.h>
#ifdef CONFIG_PROC_FS
#include <linux/proc_fs.h>
@@ -43,7 +44,7 @@
return sprintf(page, "%d\n", sn_local_partid());
}
-struct proc_dir_entry * sgi_proc_dir = NULL;
+static struct proc_dir_entry * sgi_proc_dir;
void
register_sn_partition_id(void) {
@@ -96,4 +97,99 @@
}
}
+// Disable forced interrupts, but leave the code in, just in case.
+int sn_force_interrupt_flag = 0;
+
+static int
+sn_force_interrupt_read_proc(char *page, char **start, off_t off,
+ int count, int *eof, void *data) {
+ if (sn_force_interrupt_flag) {
+ return sprintf(page, "Force interrupt is enabled\n");
+ }
+ return sprintf(page, "Force interrupt is disabled\n");
+}
+
+static int
+sn_force_interrupt_write_proc(struct file *file, const char *buffer,
+ unsigned long count, void *data)
+{
+ if (*buffer == '0') {
+ sn_force_interrupt_flag = 0;
+ } else {
+ sn_force_interrupt_flag = 1;
+ }
+ return 1;
+}
+
+void
+register_sn_force_interrupt(void) {
+ struct proc_dir_entry *entry;
+
+ if (!sgi_proc_dir) {
+ sgi_proc_dir = proc_mkdir("sgi_sn", 0);
+ }
+ entry = create_proc_entry("sn_force_interrupt",0444, sgi_proc_dir);
+ if (entry) {
+ entry->nlink = 1;
+ entry->data = 0;
+ entry->read_proc = sn_force_interrupt_read_proc;
+ entry->write_proc = sn_force_interrupt_write_proc;
+ }
+}
+
+extern int sn_linkstats_get(char *);
+extern int sn_linkstats_reset(unsigned long);
+
+static int
+sn_linkstats_read_proc(char *page, char **start, off_t off,
+ int count, int *eof, void *data) {
+
+ return sn_linkstats_get(page);
+}
+
+static int
+sn_linkstats_write_proc(struct file *file, const char *buffer,
+ unsigned long count, void *data)
+{
+ char s[64];
+ unsigned long msecs;
+ int e = count;
+
+ if (copy_from_user(s, buffer, count < sizeof(s) ? count : sizeof(s)))
+ e = -EFAULT;
+ else {
+ if (sscanf(s, "%lu", &msecs) != 1 || msecs < 5)
+ /* at least 5 milliseconds between updates */
+ e = -EINVAL;
+ else
+ sn_linkstats_reset(msecs);
+ }
+
+ return e;
+}
+
+void
+register_sn_linkstats(void) {
+ struct proc_dir_entry *entry;
+
+ if (!sgi_proc_dir) {
+ sgi_proc_dir = proc_mkdir("sgi_sn", 0);
+ }
+ entry = create_proc_entry("linkstats", 0444, sgi_proc_dir);
+ if (entry) {
+ entry->nlink = 1;
+ entry->data = 0;
+ entry->read_proc = sn_linkstats_read_proc;
+ entry->write_proc = sn_linkstats_write_proc;
+ }
+}
+
+void
+register_sn_procfs(void) {
+ register_sn_partition_id();
+ register_sn_serial_numbers();
+ register_sn_force_interrupt();
+ register_sn_linkstats();
+}
+
#endif /* CONFIG_PROC_FS */
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