William,

I can tell you that the Red Hat 2.4.9-ac10 kernel that I'm running on one of
my systems does indeed have those directories and files under /proc.  I
haven't had a chance to load the SuSE 2.4 stuff yet, perhaps I'll get to
that after SHARE.  (I have to finish up my presentations or Neale will get
after me!)

Mark Post

-----Original Message-----
From: Scully, William [mailto:[EMAIL PROTECTED]]
Sent: Thursday, February 14, 2002 9:38 PM
To: [EMAIL PROTECTED]
Subject: Re: Buffersize on Linux CTC Driver


Mark,

The quoted information is from an IBM manual which -specifically- identified
2.2.16 as the kernel level.  I am, however, running the 2.2.16 SuSE 7.0 GA
materials.  Ross Patterson, who works down the aisle from me did a quick
search and he didn't think there was an update to the CTC driver related to
this.  Perhaps someone else has seen something more specific?

I have not yet worked with the SuSE 2.4 level code.  Has someone seen
evidence that the file noted in the doc -does- exist at the 2.4 level?

I confess I'm still confused by all this... .

-----Original Message-----
From: Post, Mark K [mailto:[EMAIL PROTECTED]]
Sent: Thursday, February 14, 2002 3:22 PM
To: [EMAIL PROTECTED]
Subject: Re: Buffersize on Linux CTC Driver


William,

I believe that is only applicable to a system running the 2.4 kernel.  Are
you running that, or a 2.2 kernel?

Mark Post

-----Original Message-----
From: Scully, William [mailto:[EMAIL PROTECTED]]
Sent: Thursday, February 14, 2002 2:27 PM
To: [EMAIL PROTECTED]
Subject: Buffersize on Linux CTC Driver


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]

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