Date: Thu, 25 Oct 2007 11:02:32 -0200 From: JoaoBR <joao@matik.com.br> To: freebsd-current@freebsd.org Subject: Re: panic in 8-CURRENT / BGE hang Message-ID: <200710251102.33088.joao@matik.com.br> In-Reply-To: <200710241904.47701.jkim@FreeBSD.org> References: <4712A4A8.7080503@FreeBSD.org> <200710241910.28201.joao@matik.com.br> <200710241904.47701.jkim@FreeBSD.org>
next in thread | previous in thread | raw e-mail | index | archive | help
On Wednesday 24 October 2007 21:04:46 Jung-uk Kim wrote: > For remote server management, there are two major APIs: > > ASF by DMTF: > http://www.dmtf.org/standards/asf/ > > IPMI by Intel: > http://www.intel.com/design/servers/ipmi/ > > The main goal of the two technologies is the same, i.e., out-of-band > server management. =C2=A0Both use Remote Management and Control Protocol > (RMCP) for the network protocol but ASF is implemented on NIC > firmware level while IPMI is implemented on baseboard management > controller (BMC). =C2=A0Now BCM57xx firmware has built-in ASF stack and > the interface can be shared with BMC. =C2=A0If there is a BMC on-board and > network controller is shared, obviously you cannot just reset the > controller, etc. =C2=A0You have to 'tell' the firmware that you are about > to do critical things, such as reset, start, stop, link negotiation, > etc, so that it can communicate with BMC beforehand. =C2=A0If you turn on > hw.bge.allow_asf, it does just that. =C2=A0Unfortunately, it does not work > for all systems in the real world because they are not created equal, > e.g., different spec. revisions, hardware implementations, firmware, > BIOS, etc. =C2=A0Basically some system fails *without* it while some > system fails *with* it. =C2=A0Hence, the tunable was necessary. =C2=A0At = least, > that is how I understand it. thank you, that was great=20 but would really not harm to put something about resumed into the man page =2D-=20 Jo=C3=A3o A mensagem foi scaneada pelo sistema de e-mail e pode ser considerada segura. Service fornecido pelo Datacenter Matik https://datacenter.matik.com.br
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200710251102.33088.joao>