[Fwd: reduce ioremap memory size for Adaptec I2O controllers]

Warren Togami wtogami at redhat.com
Wed Sep 15 14:13:05 UTC 2004



-------- Original Message --------
Subject: reduce ioremap memory size for Adaptec I2O controllers
Date: Wed, 15 Sep 2004 16:05:37 +0200
From: Markus Lidel <Markus.Lidel at shadowconnect.com>
To: Andrew Morton <akpm at osdl.org>
CC: Warren Togami <wtogami at redhat.com>

Hi...

The I2O subsystem currently map all memory from the I2O controller for
the controller's in queue, even if it is not necessary. This is a
problem, because on some systems the size returned from
pci_resource_len() could be 128MB and only 1-4MB is needed.

Changes:
--------
- only ioremap as much memory as the controller is actually using.


It would be nice if you could include it for 2.6.9 kernel :-)

Thank you very much.

Bye...
------------------------------------------
Markus Lidel (Senior IT Consultant)

Shadow Connect GmbH
Carl-Reisch-Weg 12
D-86381 Krumbach
Germany

Phone:  +49 82 82/99 51-0
Fax:    +49 82 82/99 51-11

E-Mail: Markus.Lidel at shadowconnect.com
URL:    http://www.shadowconnect.com

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