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, 2 insertions, 0 deletions

diff --git a/sys/amd64/conf/NOTES b/sys/amd64/conf/NOTES
index d2d57f0..11870cb 100644
--- a/sys/amd64/conf/NOTES
+++ b/sys/amd64/conf/NOTES
@@ -346,6 +346,7 @@ options 	SAFE_RNDTEST	# enable rndtest support
 #
 # Miscellaneous hardware:
 #
+# ipmi: Intelligent Platform Management Interface
 # smbios: DMI/SMBIOS entry point
 # vpd: Vital Product Data kernel interface
 # cy: Cyclades serial driver
@@ -368,6 +369,7 @@ device		digi_EPCX_PCI
 device		digi_Xe
 device		digi_Xem
 device		digi_Xr
+device		ipmi
 # Parallel (8255 PPI) basic I/O (mode 0) port (e.g. Advantech PCL-724)
 device		pbio
 hint.pbio.0.at="isa"