Perhaps the directory structure has changed. My (SuSE) 2.2.16 has the following:
/proc/sys/net/ipv4/conf/ctc0 /proc/sys/net/ipv4/neigh/ctc0 Bob Matthews, Universtiy of Geneva. ----- Original Message ----- From: "Scully, William" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Friday, February 15, 2002 4:37 PM Subject: Re: Buffersize on Linux CTC Driver > Thank you Carlos for this helpful information. My thinking now is that the 2.2.16 >Device Drivers doc is in error suggesting that there's an easy way to limit the >amount of data packed into one I/O request on the CTC. The 2.4 kernel seems to >support what's written in the manual. > > -----Original Message----- > From: Carlos Ordonez [mailto:[EMAIL PROTECTED]] > Sent: Friday, February 15, 2002 8:36 AM > To: [EMAIL PROTECTED] > Subject: Re: Buffersize on Linux CTC Driver > > > My 2.2.16 SuSE system doesn't have that directory structure, but if you go > to a SuSE 2.4.7 everything is there. > > > > > Carlos A. Ordonez > IBM Corporation > Server Consolidation > > > > |---------+---------------------------> > | | "Scully, | > | | William" | > | | <WILLIAM.SCULLY@| > | | ca.com> | > | | Sent by: Linux | > | | on 390 Port | > | | <[EMAIL PROTECTED]| > | | RIST.EDU> | > | | | > | | | > | | 02/14/2002 09:49| > | | PM | > | | Please respond | > | | to Linux on 390 | > | | Port | > | | | > |---------+---------------------------> > >>-------------------------------------------------------------------------------------------------------------------------------| > | > | > | To: [EMAIL PROTECTED] > | > | cc: > | > | From: > | > | Subject: Re: Buffersize on Linux CTC Driver > | > | > | > >>-------------------------------------------------------------------------------------------------------------------------------| > > > > > Jay, > > A CTC is used to connect Linux to TCP/IP on VM. Since that's the only way > I > can gain access (Telnet) to the Linux server via TCP/IP, I'm as sure as I > can be that the CTC driver -is- loaded. I'm also certain that the named > file and directories do not exist. > > linux016:~ # lsmod > Module Size Used by > ctc 21220 1 (autoclean) > linux016:~ # cd /proc > linux016:/proc # cd net > linux016:/proc/net # ls > . dev igmp ip_mr_cache netstat rpc sockstat udp > .. dev_mcast ip_fwchains ip_mr_vif raw rt_cache tcp unix > arp dev_stat ip_fwnames netlink route snmp tr_rif > linux016:/proc/net # > > I'll mention that I'm at the 2.2.16 level of SuSE 7.0 GA. Are you seeing > different results with your system? If so, what distribution are you > using? > I personally haven't yet worked with the 2.4 kernel and if the CTC driver > works differently at that level, I'd like to hear that. I'll mention again > that the quote from the manual was for the 2.2.16 level of code. Again, > perhaps, we've missed some service? > > Thanks for your comments. The more I check the more I learn about all this > stuff! ;-) > > -----Original Message----- > From: Robert J Brenneman [mailto:[EMAIL PROTECTED]] > Sent: Thursday, February 14, 2002 3:34 PM > To: [EMAIL PROTECTED] > Subject: Re: Buffersize on Linux CTC Driver > > > The file is not there because the driver is not yet loaded. You have to > load the driver first before you can change the buffersize. All the > appropriate /proc stuff gets created after the driver loads. > > Jay Brenneman > > > > > > "Scully, William" > <WILLIAM.SCULLY@c To: > [EMAIL PROTECTED] > a.com> cc: > Sent by: Linux on Subject: Buffersize on > Linux > CTC Driver > 390 Port > <[EMAIL PROTECTED] > IST.EDU> > > > 02/14/02 02:26 PM > Please respond to > Linux on 390 Port > > > > > > The IBM "Linux for S/390 Device Drivers and Installation Commands" > document, dated 18 July 2001, in Chapter Seven, "Linux for S/390 CTC/ESCON > Device Driver", has Usage Note 2 under "Preparing the Connection" which > reads: > > Definitions on the remote side > > Set up the TCP/IP on the remote side, as described in the reference > manuals. > This will vary depending on which operating system is used on the remote > side. > > Note: It is important that you have IOBUFFERSIZE 32678 defined because > the > LINUX for S/390 CTC driver works with 32k internally. This is > configurable > for each device by writing the value to the buffersize file for that > device > (proc/net/ctc/<devicename>/buffersize ), for example > > echo 32768 >/proc/net/ctc/ctc0/buffersize > > I'm not sure how this is accomplished. Logging on as root and issuing the > command doesn't work. Here's what I get: > > LINUXWPS:/proc # echo 32768 >/proc/net/ctc/ctc0/buffersize > bash: /proc/net/ctc/ctc0/buffersize: No such file or directory > > What is the correct technique for creating the appropriate directories and > file? > > William P. Scully > Systems Programmer > Computer Associates International, Inc > [EMAIL PROTECTED]
