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| author | Sebastian Ott <sebott@linux.vnet.ibm.com> | 2013-04-30 17:16:17 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2013-05-02 15:50:20 +0200 |
| commit | 0e6c83d18759e282fb4cfc19478a4217923421b3 (patch) | |
| tree | 465961a27c8ce1ffadbb4f8038657d504c9cd406 /Documentation | |
| parent | s390/uaccess: add "fallthrough" comments (diff) | |
| download | linux-0e6c83d18759e282fb4cfc19478a4217923421b3.tar.xz linux-0e6c83d18759e282fb4cfc19478a4217923421b3.zip | |
s390/cio: add ipldev keyword to cio_ignore
Provide an 'ipldev' keyword to cio_ignore to (un)ignore the
CCW or FCP based boot device.
Reviewed-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/s390/CommonIO | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/Documentation/s390/CommonIO b/Documentation/s390/CommonIO index d378cba66456..d90a5ddb2b07 100644 --- a/Documentation/s390/CommonIO +++ b/Documentation/s390/CommonIO @@ -8,9 +8,9 @@ Command line parameters Enable logging of debug information in case of ccw device timeouts. -* cio_ignore = {all} | - {<device> | <range of devices>} | - {!<device> | !<range of devices>} +* cio_ignore = device[,device[,..]] + + device := {all | [!]ipldev | [!]<devno> | [!]<devno>-<devno>} The given devices will be ignored by the common I/O-layer; no detection and device sensing will be done on any of those devices. The subchannel to @@ -24,9 +24,10 @@ Command line parameters device numbers (0xabcd or abcd, for 2.4 backward compatibility). If you give a device number 0xabcd, it will be interpreted as 0.0.abcd. - You can use the 'all' keyword to ignore all devices. - The '!' operator will cause the I/O-layer to _not_ ignore a device. - The command line is parsed from left to right. + You can use the 'all' keyword to ignore all devices. The 'ipldev' keyword can + be used to refer to the CCW based boot device (this is probably useful only + when combined with the '!' operator). The '!' operator will cause the I/O-layer + to _not_ ignore a device. The command line is parsed from left to right. For example, cio_ignore=0.0.0023-0.0.0042,0.0.4711 |