O.K., I have done a test with the standard e1000 driver of linux (2.4.33, the Intel e1000 driver 7.1.9) I have written the following bash script: modprobe e1000 ifconfig eth1 up 192.168.2.2 dmesg -c sleep 1 echo "--------" dmesg -c sleep 1 echo "--------" dmesg -c
The output of this is: Intel(R) PRO/1000 Network Driver - version 7.1.9 Copyright (c) 1999-2006 Intel Corporation. e1000: 03:05.0: e1000_probe: (PCI:33MHz:32-bit) 00:0e:0c:b8:e9:32 e1000: eth1: e1000_probe: Intel(R) PRO/1000 Network Connection -------- -------- e1000: eth1: e1000_watchdog: NIC Link is Up 100 Mbps Half Duplex (Here I have connected the e1000 to a Hub - this is where the 100Mbps Half Duplex comes from). As you see it takes about 2 seconds after ifconfig until the e1000 is able to communicate on Ethernet. I think, the situation is the very same with rtnet... This is not nice, however as it is a one-time initialization delay I think it is acceptable. Regards Mathias > Hi Jan, > > I think it could also be an issue of the e1000_watchdog() function in the > e1000 driver. > When I get this right, will this watchdog computed frequently to check the > current line state. > And I think it has to be called to detect the correct line state. > I am not quite sure, but I think, the same effect is with the "standard" > e1000 driver as well. > It takes fairly long until it actually can be used after loading the > driver. > However, I try to do a test on this and give you another feedback. > > Regards > > Mathias > > ----- Original Nachricht ---- > Von: Jan Kiszka <[EMAIL PROTECTED]> > An: "M. Koehrer" <[EMAIL PROTECTED]> > Datum: 15.09.2006 13:23 > Betreff: Re: [RTnet-users] rt_e1000 driver loading > > > M. Koehrer wrote: > > > Hi Thinus, > > > > > > I noticed aswell that the rt_e1000 takes fairly long to detect the > actual > > line state > > > (speed, duplex settings...). > > > > That answers one of my question: it's a common issue then. It may be > > related to the timer we had to remove from the rt-variant. > > > > The problem is not that it takes so long, it's rather that it seems to > > fail to come up at all. The question is now what happens to those frames > > that are sent "too early", or what prevents to transmitter to recover > > later when the link has been detected. If we cannot manage this, we may > > run into further problems on cable re-plug during runtime. > > > > Jan > > > > > > > > -------------------------------- > > > > ------------------------------------------------------------------------- > > Using Tomcat but need to do more? Need to support web services, security? > > Get stuff done quickly with pre-integrated technology to make your job > > easier > > Download IBM WebSphere Application Server v.1.0.1 based on Apache > Geronimo > > http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 > > > > -------------------------------- > > > > _______________________________________________ > > RTnet-users mailing list > > RTnet-users@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/rtnet-users > > > > -- > Mathias Koehrer > [EMAIL PROTECTED] > > > Viel oder wenig? Schnell oder langsam? Unbegrenzt surfen + telefonieren > ohne Zeit- und Volumenbegrenzung? DAS TOP ANGEBOT JETZT bei Arcor: günstig > und schnell mit DSL - das All-Inclusive-Paket für clevere Doppel-Sparer, > nur 44,85 inkl. DSL- und ISDN-Grundgebühr! > http://www.arcor.de/rd/emf-dsl-2 > > ------------------------------------------------------------------------- > Using Tomcat but need to do more? Need to support web services, security? > Get stuff done quickly with pre-integrated technology to make your job > easier > Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo > http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 > _______________________________________________ > RTnet-users mailing list > RTnet-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/rtnet-users > -- Mathias Koehrer [EMAIL PROTECTED] Viel oder wenig? Schnell oder langsam? Unbegrenzt surfen + telefonieren ohne Zeit- und Volumenbegrenzung? DAS TOP ANGEBOT JETZT bei Arcor: günstig und schnell mit DSL - das All-Inclusive-Paket für clevere Doppel-Sparer, nur 44,85 inkl. DSL- und ISDN-Grundgebühr! http://www.arcor.de/rd/emf-dsl-2 ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ RTnet-users mailing list RTnet-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/rtnet-users
