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path: root/drivers/char/ipmi/ipmi_poweroff.c
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Diffstat (limited to 'drivers/char/ipmi/ipmi_poweroff.c')
-rw-r--r--drivers/char/ipmi/ipmi_poweroff.c24
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/char/ipmi/ipmi_poweroff.c b/drivers/char/ipmi/ipmi_poweroff.c
index 1583329ac2ec..170590153df6 100644
--- a/drivers/char/ipmi/ipmi_poweroff.c
+++ b/drivers/char/ipmi/ipmi_poweroff.c
@@ -62,6 +62,7 @@ MODULE_PARM_DESC(poweroff_control, " Set to 2 to enable power cycle instead of p
static unsigned int mfg_id;
static unsigned int prod_id;
static unsigned char capabilities;
+static unsigned char ipmi_version;
/* We use our own messages for this operation, we don't let the system
allocate them, since we may be in a panic situation. The whole
@@ -337,6 +338,25 @@ static void ipmi_poweroff_cpi1 (ipmi_user_t user)
}
/*
+ * ipmi_dell_chassis_detect()
+ * Dell systems with IPMI < 1.5 don't set the chassis capability bit
+ * but they can handle a chassis poweroff or powercycle command.
+ */
+
+#define DELL_IANA_MFR_ID {0xA2, 0x02, 0x00}
+static int ipmi_dell_chassis_detect (ipmi_user_t user)
+{
+ const char ipmi_version_major = ipmi_version & 0xF;
+ const char ipmi_version_minor = (ipmi_version >> 4) & 0xF;
+ const char mfr[3]=DELL_IANA_MFR_ID;
+ if (!memcmp(mfr, &mfg_id, sizeof(mfr)) &&
+ ipmi_version_major <= 1 &&
+ ipmi_version_minor < 5)
+ return 1;
+ return 0;
+}
+
+/*
* Standard chassis support
*/
@@ -413,6 +433,9 @@ static struct poweroff_function poweroff_functions[] = {
{ .platform_type = "CPI1",
.detect = ipmi_cpi1_detect,
.poweroff_func = ipmi_poweroff_cpi1 },
+ { .platform_type = "chassis",
+ .detect = ipmi_dell_chassis_detect,
+ .poweroff_func = ipmi_poweroff_chassis },
/* Chassis should generally be last, other things should override
it. */
{ .platform_type = "chassis",
@@ -498,6 +521,7 @@ static void ipmi_po_new_smi(int if_num)
prod_id = (halt_recv_msg.msg.data[10]
| (halt_recv_msg.msg.data[11] << 8));
capabilities = halt_recv_msg.msg.data[6];
+ ipmi_version = halt_recv_msg.msg.data[5];
/* Scan for a poweroff method */