This patchset introduces IPMI Block Transfer over I2C (BT-I2C), which has the same semantics as IPMI Block Transfer except it done over I2C.
For the OpenBMC people, this is based on an RFC: https://lists.ozlabs.org/pipermail/openbmc/2016-September/004505.html The documentation discusses the reason for this in greater detail, suffice it to say SSIF cannot be correctly implemented on some naive I2C devices. There are some additional reasons why we don't like SSIF, but those are again covered in the documentation for all those who are interested. In addition, since I am adding both host side and BMC side support, I figured that now is a good time to resolve the problem of where to put BMC side IPMI drivers; right now we have it (there is only one) in drivers/char/ipmi/ with the rest of the host side IPMI drivers, but I think it makes sense to put all of the host side IPMI drivers in one directory and all of the BMC side drivers in another, preferably in a way that does not effect all of the current OpenIPMI users. I have not created a MAINTAINERS entry for the new directory yet, as I figured there might be some discussion to be had about it. I have tested this patchset on the Aspeed 2500 EVB. Changes since previous update: - Cleaned up some documentation. - Added patch which moves the Aspeed BT-BMC driver to the new ipmi_bmc directory.