|
@@ -59,7 +59,7 @@
|
|
|
<title>Introduction</title>
|
|
<title>Introduction</title>
|
|
|
<para>
|
|
<para>
|
|
|
This document describes the interfaces available for device drivers that
|
|
This document describes the interfaces available for device drivers that
|
|
|
- drive s390 based channel attached devices. This includes interfaces for
|
|
|
|
|
|
|
+ drive s390 based channel attached I/O devices. This includes interfaces for
|
|
|
interaction with the hardware and interfaces for interacting with the
|
|
interaction with the hardware and interfaces for interacting with the
|
|
|
common driver core. Those interfaces are provided by the s390 common I/O
|
|
common driver core. Those interfaces are provided by the s390 common I/O
|
|
|
layer.
|
|
layer.
|
|
@@ -86,9 +86,10 @@
|
|
|
The ccw bus typically contains the majority of devices available to
|
|
The ccw bus typically contains the majority of devices available to
|
|
|
a s390 system. Named after the channel command word (ccw), the basic
|
|
a s390 system. Named after the channel command word (ccw), the basic
|
|
|
command structure used to address its devices, the ccw bus contains
|
|
command structure used to address its devices, the ccw bus contains
|
|
|
- so-called channel attached devices. They are addressed via subchannels,
|
|
|
|
|
- visible on the css bus. A device driver, however, will never interact
|
|
|
|
|
- with the subchannel directly, but only via the device on the ccw bus,
|
|
|
|
|
|
|
+ so-called channel attached devices. They are addressed via I/O
|
|
|
|
|
+ subchannels, visible on the css bus. A device driver for
|
|
|
|
|
+ channel-attached devices, however, will never interact with the
|
|
|
|
|
+ subchannel directly, but only via the I/O device on the ccw bus,
|
|
|
the ccw device.
|
|
the ccw device.
|
|
|
</para>
|
|
</para>
|
|
|
<sect1 id="channelIO">
|
|
<sect1 id="channelIO">
|
|
@@ -116,7 +117,6 @@
|
|
|
!Iinclude/asm-s390/ccwdev.h
|
|
!Iinclude/asm-s390/ccwdev.h
|
|
|
!Edrivers/s390/cio/device.c
|
|
!Edrivers/s390/cio/device.c
|
|
|
!Edrivers/s390/cio/device_ops.c
|
|
!Edrivers/s390/cio/device_ops.c
|
|
|
-!Edrivers/s390/cio/airq.c
|
|
|
|
|
</sect1>
|
|
</sect1>
|
|
|
<sect1 id="cmf">
|
|
<sect1 id="cmf">
|
|
|
<title>The channel-measurement facility</title>
|
|
<title>The channel-measurement facility</title>
|
|
@@ -147,4 +147,15 @@
|
|
|
</sect1>
|
|
</sect1>
|
|
|
</chapter>
|
|
</chapter>
|
|
|
|
|
|
|
|
|
|
+ <chapter id="genericinterfaces">
|
|
|
|
|
+ <title>Generic interfaces</title>
|
|
|
|
|
+ <para>
|
|
|
|
|
+ Some interfaces are available to other drivers that do not necessarily
|
|
|
|
|
+ have anything to do with the busses described above, but still are
|
|
|
|
|
+ indirectly using basic infrastructure in the common I/O layer.
|
|
|
|
|
+ One example is the support for adapter interrupts.
|
|
|
|
|
+ </para>
|
|
|
|
|
+!Edrivers/s390/cio/airq.c
|
|
|
|
|
+ </chapter>
|
|
|
|
|
+
|
|
|
</book>
|
|
</book>
|
Cornelia Huck