X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=drivers%2Fchar%2Fipmi%2Fipmi_smic_sm.c;h=39d7e5ef1a2ba82ff6d9b3526f397b0e2184a550;hb=a8b59e79ed55de97949ff1ca7d933786b95b39bd;hp=add2aa2732f0c56c4324088a1a18b08ec08c7b9a;hpb=c0d6f9663b30a09ed725229b2d50391268c8538e;p=powerpc.git

diff --git a/drivers/char/ipmi/ipmi_smic_sm.c b/drivers/char/ipmi/ipmi_smic_sm.c
index add2aa2732..39d7e5ef1a 100644
--- a/drivers/char/ipmi/ipmi_smic_sm.c
+++ b/drivers/char/ipmi/ipmi_smic_sm.c
@@ -43,6 +43,8 @@
 
 #include <linux/kernel.h> /* For printk. */
 #include <linux/string.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
 #include <linux/ipmi_msgdefs.h>		/* for completion codes */
 #include "ipmi_si_sm.h"
 
@@ -56,6 +58,8 @@
 #define	SMIC_DEBUG_ENABLE	1
 
 static int smic_debug = 1;
+module_param(smic_debug, int, 0644);
+MODULE_PARM_DESC(smic_debug, "debug bitmask, 1=enable, 2=messages, 4=states");
 
 enum smic_states {
 	SMIC_IDLE,
@@ -76,11 +80,17 @@ enum smic_states {
 #define SMIC_MAX_ERROR_RETRIES 3
 
 /* Timeouts in microseconds. */
-#define SMIC_RETRY_TIMEOUT 100000
+#define SMIC_RETRY_TIMEOUT 2000000
 
 /* SMIC Flags Register Bits */
 #define SMIC_RX_DATA_READY	0x80
 #define SMIC_TX_DATA_READY	0x40
+/*
+ * SMIC_SMI and SMIC_EVM_DATA_AVAIL are only used by
+ * a few systems, and then only by Systems Management
+ * Interrupts, not by the OS.  Always ignore these bits.
+ *
+ */
 #define SMIC_SMI		0x10
 #define SMIC_EVM_DATA_AVAIL	0x08
 #define SMIC_SMS_DATA_AVAIL	0x04
@@ -364,8 +374,7 @@ static enum si_sm_result smic_event (struct si_sm_data *smic, long time)
 	switch (smic->state) {
 	case SMIC_IDLE:
 		/* in IDLE we check for available messages */
-		if (flags & (SMIC_SMI |
-			     SMIC_EVM_DATA_AVAIL | SMIC_SMS_DATA_AVAIL))
+		if (flags & SMIC_SMS_DATA_AVAIL)
 		{
 			return SI_SM_ATTN;
 		}