* IPMI driver version 21
@ 2003-04-21 21:31 Corey Minyard
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From: Corey Minyard @ 2003-04-21 21:31 UTC (permalink / raw)
To: Linus Torvalds, LKML
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Linus,
Attached is an update to the IPMI driver to bring it to version 21.
This release fixes some problems in the watchdog, before you had to ping
the watchdog twice before it would actually start. It also fixes some
interrupt saving flags that were not "unsigned long", and it removes
some cruft. This is against 2.5.68.
Thanks,
-Corey
[-- Attachment #2: linux-ipmi-2.5.68-v21.diff --]
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diff -urN linux.orig/drivers/char/ipmi/ipmi_kcs_intf.c linux-main/drivers/char/ipmi/ipmi_kcs_intf.c
--- linux.orig/drivers/char/ipmi/ipmi_kcs_intf.c Mon Apr 21 11:20:07 2003
+++ linux-main/drivers/char/ipmi/ipmi_kcs_intf.c Mon Apr 21 13:20:10 2003
@@ -629,18 +629,6 @@
atomic_set(&kcs_info->req_events, 1);
}
-static int new_user(void *send_info)
-{
- if (!try_module_get(THIS_MODULE))
- return -EBUSY;
- return 0;
-}
-
-static void user_left(void *send_info)
-{
- module_put(THIS_MODULE);
-}
-
static int initialized = 0;
/* Must be called with interrupts off and with the kcs_lock held. */
diff -urN linux.orig/drivers/char/ipmi/ipmi_msghandler.c linux-main/drivers/char/ipmi/ipmi_msghandler.c
--- linux.orig/drivers/char/ipmi/ipmi_msghandler.c Mon Apr 21 11:20:07 2003
+++ linux-main/drivers/char/ipmi/ipmi_msghandler.c Mon Apr 21 14:07:59 2003
@@ -174,8 +174,8 @@
int
ipmi_register_all_cmd_rcvr(ipmi_user_t user)
{
- int flags;
- int rv = -EBUSY;
+ unsigned long flags;
+ int rv = -EBUSY;
write_lock_irqsave(&(user->intf->users_lock), flags);
write_lock(&(user->intf->cmd_rcvr_lock));
@@ -193,8 +193,8 @@
int
ipmi_unregister_all_cmd_rcvr(ipmi_user_t user)
{
- int flags;
- int rv = -EINVAL;
+ unsigned long flags;
+ int rv = -EINVAL;
write_lock_irqsave(&(user->intf->users_lock), flags);
write_lock(&(user->intf->cmd_rcvr_lock));
@@ -431,6 +431,7 @@
{
struct seq_table *ent = &(intf->seq_table[seq]);
ent->timeout = ent->orig_timeout;
+ rv = 0;
}
spin_unlock_irqrestore(&(intf->seq_lock), flags);
@@ -1023,7 +1024,7 @@
int rv;
ipmi_smi_t new_intf;
struct list_head *entry;
- unsigned int flags;
+ unsigned long flags;
/* Make sure the driver is actually initialized, this handles
@@ -1148,7 +1149,7 @@
int rv = -ENODEV;
int i;
struct list_head *entry;
- unsigned int flags;
+ unsigned long flags;
down_write(&interfaces_sem);
if (list_empty(&(intf->users)))
diff -urN linux.orig/drivers/char/ipmi/ipmi_watchdog.c linux-main/drivers/char/ipmi/ipmi_watchdog.c
--- linux.orig/drivers/char/ipmi/ipmi_watchdog.c Mon Apr 21 11:20:07 2003
+++ linux-main/drivers/char/ipmi/ipmi_watchdog.c Mon Apr 21 11:28:33 2003
@@ -215,13 +215,13 @@
struct ipmi_recv_msg *recv_msg,
int *send_heartbeat_now)
{
- struct ipmi_msg msg;
- unsigned char data[6];
- int rv;
+ struct ipmi_msg msg;
+ unsigned char data[6];
+ int rv;
struct ipmi_system_interface_addr addr;
+ int hbnow = 0;
- *send_heartbeat_now = 0;
data[0] = 0;
WDOG_SET_TIMER_USE(data[0], WDOG_TIMER_USE_SMS_OS);
@@ -233,7 +233,7 @@
} else if (ipmi_watchdog_state != WDOG_TIMEOUT_NONE) {
/* In ipmi 1.0, setting the timer stops the watchdog, we
need to start it back up again. */
- *send_heartbeat_now = 1;
+ hbnow = 1;
}
data[1] = 0;
@@ -268,10 +268,18 @@
rv);
}
+ if (send_heartbeat_now)
+ *send_heartbeat_now = hbnow;
+
return rv;
}
-static int ipmi_set_timeout(void)
+/* Parameters to ipmi_set_timeout */
+#define IPMI_SET_TIMEOUT_NO_HB 0
+#define IPMI_SET_TIMEOUT_HB_IF_NECESSARY 1
+#define IPMI_SET_TIMEOUT_FORCE_HB 2
+
+static int ipmi_set_timeout(int do_heartbeat)
{
int send_heartbeat_now;
int rv;
@@ -288,8 +296,12 @@
if (rv) {
up(&set_timeout_lock);
} else {
- if (send_heartbeat_now)
+ if ((do_heartbeat == IPMI_SET_TIMEOUT_FORCE_HB)
+ || ((send_heartbeat_now)
+ && (do_heartbeat == IPMI_SET_TIMEOUT_HB_IF_NECESSARY)))
+ {
rv = ipmi_heartbeat();
+ }
}
return rv;
@@ -312,7 +324,7 @@
/* Special call, doesn't claim any locks. This is only to be called
at panic or halt time, in run-to-completion mode, when the caller
- is the only CPU and the only thing that will be going IPMI
+ is the only CPU and the only thing that will be going is these IPMI
calls. */
static void panic_halt_ipmi_set_timeout(void)
{
@@ -339,7 +351,7 @@
else
ipmi_watchdog_state = WDOG_TIMEOUT_RESET;
timeout = delay;
- ipmi_set_timeout();
+ ipmi_set_timeout(IPMI_SET_TIMEOUT_HB_IF_NECESSARY);
}
/* We use a semaphore to make sure that only one thing can send a
@@ -390,16 +402,14 @@
if (ipmi_start_timer_on_heartbeat) {
ipmi_start_timer_on_heartbeat = 0;
ipmi_watchdog_state = action_val;
- return ipmi_set_timeout();
- }
-
- if (pretimeout_since_last_heartbeat) {
+ return ipmi_set_timeout(IPMI_SET_TIMEOUT_FORCE_HB);
+ } else if (pretimeout_since_last_heartbeat) {
/* A pretimeout occurred, make sure we set the timeout.
We don't want to set the action, though, we want to
leave that alone (thus it can't be combined with the
above operation. */
pretimeout_since_last_heartbeat = 0;
- return ipmi_set_timeout();
+ return ipmi_set_timeout(IPMI_SET_TIMEOUT_HB_IF_NECESSARY);
}
down(&heartbeat_lock);
@@ -501,7 +511,7 @@
if (i)
return -EFAULT;
timeout = val;
- return ipmi_set_timeout();
+ return ipmi_set_timeout(IPMI_SET_TIMEOUT_HB_IF_NECESSARY);
case WDIOC_GETTIMEOUT:
i = copy_to_user((void *) arg,
@@ -516,7 +526,7 @@
if (i)
return -EFAULT;
pretimeout = val;
- return ipmi_set_timeout();
+ return ipmi_set_timeout(IPMI_SET_TIMEOUT_HB_IF_NECESSARY);
case WDIOC_GET_PRETIMEOUT:
i = copy_to_user((void *) arg,
@@ -536,14 +546,14 @@
if (val & WDIOS_DISABLECARD)
{
ipmi_watchdog_state = WDOG_TIMEOUT_NONE;
- ipmi_set_timeout();
+ ipmi_set_timeout(IPMI_SET_TIMEOUT_NO_HB);
ipmi_start_timer_on_heartbeat = 0;
}
if (val & WDIOS_ENABLECARD)
{
ipmi_watchdog_state = action_val;
- ipmi_set_timeout();
+ ipmi_set_timeout(IPMI_SET_TIMEOUT_FORCE_HB);
}
return 0;
@@ -679,7 +689,7 @@
{
#ifndef CONFIG_WATCHDOG_NOWAYOUT
ipmi_watchdog_state = WDOG_TIMEOUT_NONE;
- ipmi_set_timeout();
+ ipmi_set_timeout(IPMI_SET_TIMEOUT_NO_HB);
#endif
ipmi_wdog_open = 0;
}
@@ -731,14 +741,14 @@
wake_up_interruptible(&read_q);
kill_fasync(&fasync_q, SIGIO, POLL_IN);
- /* On some machines, the heartbeat will give
- an error and not work unless we re-enable
- the timer. So do so. */
- pretimeout_since_last_heartbeat = 1;
-
spin_unlock(&ipmi_read_lock);
}
}
+
+ /* On some machines, the heartbeat will give
+ an error and not work unless we re-enable
+ the timer. So do so. */
+ pretimeout_since_last_heartbeat = 1;
}
static struct ipmi_user_hndl ipmi_hndlrs =
@@ -779,7 +789,7 @@
/* Run from startup, so start the timer now. */
start_now = 0; /* Disable this function after first startup. */
ipmi_watchdog_state = action_val;
- ipmi_set_timeout();
+ ipmi_set_timeout(IPMI_SET_TIMEOUT_FORCE_HB);
printk("Starting IPMI Watchdog now!\n");
}
}
@@ -792,6 +802,12 @@
watchdog. */
if ((!handled) && (preop_val == WDOG_PREOP_PANIC))
panic("IPMI watchdog pre-timeout");
+
+ /* On some machines, the heartbeat will give
+ an error and not work unless we re-enable
+ the timer. So do so. */
+ pretimeout_since_last_heartbeat = 1;
+
return NOTIFY_DONE;
}
@@ -1009,7 +1025,7 @@
/* Disable the timer. */
ipmi_watchdog_state = WDOG_TIMEOUT_NONE;
- ipmi_set_timeout();
+ ipmi_set_timeout(IPMI_SET_TIMEOUT_NO_HB);
/* Wait to make sure the message makes it out. The lower layer has
pointers to our buffers, we want to make sure they are done before
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2003-04-21 21:31 IPMI driver version 21 Corey Minyard
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