Update the ipmi(4) driver:

- Split out the communication protocols into their own files and use
  a couple of function pointers in the softc that the commuication
  protocols setup in their own attach routine.
- Add support for the SSIF interface (talking to IPMI over SMBus).
- Add an ACPI attachment.
- Add a PCI attachment that attaches to devices with the IPMI interface
  subclass.
- Split the ISA attachment out into its own file: ipmi_isa.c.
- Change the code to probe the SMBIOS table for an IPMI entry to just use
  pmap_mapbios() to map the table in rather than trying to setup a fake
  resource on an isa device and then activating the resource to map in the
  table.
- Make bus attachments leaner by adding attach functions for each
  communication interface (ipmi_kcs_attach(), ipmi_smic_attach(), etc.)
  that setup per-interface data.
- Formalize the model used by the driver to handle requests by adding an
  explicit struct ipmi_request object that holds the state of a given
  request and reply for the entire lifetime of the request.  By bundling
  the request into an object, it is easier to add retry logic to the various
  communication backends (as well as eventually support BT mode which uses
  a slightly different message format than KCS, SMIC, and SSIF).
- Add a per-softc lock and remove D_NEEDGIANT as the driver is now MPSAFE.
- Add 32-bit compatibility ioctl shims so you can use a 32-bit ipmitool
  on FreeBSD/amd64.
- Add ipmi(4) to i386 and amd64 NOTES.

Submitted by:	ambrisko (large portions of 2 and 3)
Sponsored by:	IronPort Systems, Yahoo!
MFC after:	6 days

1 files changed, 36 insertions, 0 deletions

diff --git a/sys/sys/ipmi.h b/sys/sys/ipmi.h
index 8832030..578d78c 100644
--- a/sys/sys/ipmi.h
+++ b/sys/sys/ipmi.h
@@ -26,6 +26,9 @@
  * $FreeBSD$
  */
 
+#ifndef __SYS_IPMI_H__
+#define	__SYS_IPMI_H__
+
 #define IPMI_MAX_ADDR_SIZE		0x20
 #define IPMI_MAX_RX			1024
 #define IPMI_BMC_SLAVE_ADDR		0x20 /* Linux Default slave address */
@@ -117,3 +120,36 @@ struct ipmi_ipmb_addr {
 	unsigned char	slave_addr;
 	unsigned char	lun;
 };
+
+#if defined(__amd64__)
+/* Compatiblity with 32-bit binaries. */
+
+#define IPMICTL_RECEIVE_MSG_TRUNC_32	_IOWR(IPMI_IOC_MAGIC, 11, struct ipmi_recv32)
+#define IPMICTL_RECEIVE_MSG_32		_IOWR(IPMI_IOC_MAGIC, 12, struct ipmi_recv32)
+#define IPMICTL_SEND_COMMAND_32		_IOW(IPMI_IOC_MAGIC, 13, struct ipmi_req32)
+
+struct ipmi_msg32 {
+	unsigned char	netfn;
+        unsigned char	cmd;
+        unsigned short	data_len;
+	uint32_t	data;
+};
+
+struct ipmi_req32 {
+	uint32_t	addr;
+	unsigned int	addr_len;
+	int32_t		msgid;
+	struct ipmi_msg32 msg;
+};
+
+struct ipmi_recv32 {
+	int		recv_type;
+	uint32_t	addr;
+	unsigned int	addr_len;
+	int32_t		msgid;
+	struct ipmi_msg32 msg;
+};
+
+#endif
+
+#endif	/* !__SYS_IPMI_H__ */