[PATCH] ipmi: add per-channel IPMB addresses
IPMI allows multiple IPMB channels on a single interface, and each channel
might have a different IPMB address. However, the driver has only one IPMB
address that it uses for everything. This patch adds new IOCTLS and a new
internal interface for setting per-channel IPMB addresses and LUNs. New
systems are coming out with support for multiple IPMB channels, and they are
broken without this patch.
Signed-off-by: Corey Minyard <minyard@acm.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/include/linux/ipmi.h b/include/linux/ipmi.h
index 596ca61..846b698 100644
--- a/include/linux/ipmi.h
+++ b/include/linux/ipmi.h
@@ -298,13 +298,19 @@
this user, so it will affect all users of this interface. This is
so some initialization code can come in and do the OEM-specific
things it takes to determine your address (if not the BMC) and set
- it for everyone else. */
-void ipmi_set_my_address(ipmi_user_t user,
- unsigned char address);
-unsigned char ipmi_get_my_address(ipmi_user_t user);
-void ipmi_set_my_LUN(ipmi_user_t user,
- unsigned char LUN);
-unsigned char ipmi_get_my_LUN(ipmi_user_t user);
+ it for everyone else. Note that each channel can have its own address. */
+int ipmi_set_my_address(ipmi_user_t user,
+ unsigned int channel,
+ unsigned char address);
+int ipmi_get_my_address(ipmi_user_t user,
+ unsigned int channel,
+ unsigned char *address);
+int ipmi_set_my_LUN(ipmi_user_t user,
+ unsigned int channel,
+ unsigned char LUN);
+int ipmi_get_my_LUN(ipmi_user_t user,
+ unsigned int channel,
+ unsigned char *LUN);
/*
* Like ipmi_request, but lets you specify the number of retries and
@@ -585,6 +591,16 @@
* things it takes to determine your address (if not the BMC) and set
* it for everyone else. You should probably leave the LUN alone.
*/
+struct ipmi_channel_lun_address_set
+{
+ unsigned short channel;
+ unsigned char value;
+};
+#define IPMICTL_SET_MY_CHANNEL_ADDRESS_CMD _IOR(IPMI_IOC_MAGIC, 24, struct ipmi_channel_lun_address_set)
+#define IPMICTL_GET_MY_CHANNEL_ADDRESS_CMD _IOR(IPMI_IOC_MAGIC, 25, struct ipmi_channel_lun_address_set)
+#define IPMICTL_SET_MY_CHANNEL_LUN_CMD _IOR(IPMI_IOC_MAGIC, 26, struct ipmi_channel_lun_address_set)
+#define IPMICTL_GET_MY_CHANNEL_LUN_CMD _IOR(IPMI_IOC_MAGIC, 27, struct ipmi_channel_lun_address_set)
+/* Legacy interfaces, these only set IPMB 0. */
#define IPMICTL_SET_MY_ADDRESS_CMD _IOR(IPMI_IOC_MAGIC, 17, unsigned int)
#define IPMICTL_GET_MY_ADDRESS_CMD _IOR(IPMI_IOC_MAGIC, 18, unsigned int)
#define IPMICTL_SET_MY_LUN_CMD _IOR(IPMI_IOC_MAGIC, 19, unsigned int)