It is for KCS transaction speed. Today, with the latest kernel and new timers with better resolution, the difference is not very big between an implementation in interrupt or in polling.
When no high resolution timer was available, the KCS speed was at least 20 times slower than now. A transaction that is now taking 5ms to 10ms was taking 200ms before. Jean-Michel Audet -----Message d'origine----- De : [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] De la part de David A. Ranch Envoyé : Monday, December 04, 2006 9:37 PM À : ipmitool-devel Objet : Re: [Ipmitool-devel] KCS with interrupts Curious, what's the benefit of an interrupt-based IPMI setup? Better response for things like traps, SOL, etc. compared to polling? As it stands, the dmidecode for these Supermicro cards doesn't say anything about interrupts: ... Handle 0x0030 DMI type 38, 12 bytes. IPMI Device Information [that's it for IPMI] --Davod > Hi, > Was anyone able to enable interrupts on KCS interface (Open IPMI driver)? > > When I send: > modprobe ipmi_si type=kcs irqs=9 > > after 'dmesg |grep ipmi' I get: > ipmi message handler version 33.11 > ipmi_si: Found SMBIOS-specified state machine at I/O address 0xca2, slave > addres > s 0x20 > > and 'cat /proc/ipmi/0/si_stats' shows: > interrupts_enabled: 0 > > Regards, > Andrzej > > ---------------------------------------------------- > Komedia dla całej rodziny - "Wpuszczony w kanał" - nowa, rewelacyjna > animacja twórców "Shreka" i "Madagaskaru" w kinach od 1 grudnia! > http://klik.wp.pl/?adr=http%3A%2F%2Fadv.reklama.wp.pl%2Fas%2Fwkanal.html&sid=957 > > > > ------------------------------------------------------------------------- > Take Surveys. Earn Cash. Influence the Future of IT > Join SourceForge.net's Techsay panel and you'll get the chance to share your > opinions on IT & business topics through brief surveys - and earn cash > http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV > _______________________________________________ > Ipmitool-devel mailing list > Ipmitool-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/ipmitool-devel > ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Ipmitool-devel mailing list Ipmitool-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/ipmitool-devel ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Ipmitool-devel mailing list Ipmitool-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/ipmitool-devel
