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ide: add "nodma|noflush|noprobe|nowerr=" parameters

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* Add "nodma|noflush|noprobe|nowerr=" parameters.

* Obsolete "hdx=noprobe|none|nowerr|nodma|noflush" kernel parameters.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
Bartlomiej Zolnierkiewicz
2008-04-27 15:38:30 +02:00
parent 207daeaabb
commit 6e87543a94
2 changed files with 88 additions and 17 deletions
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26
Documentation/ide/ide.txt
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@@ -99,10 +99,10 @@ with hd.c but not with ide.c), then an command line option may be specified
for each drive for which you'd like the drive to skip the hardware
probe/identification sequence. For example:
hdb=noprobe
ide_core.noprobe=0.1
or
hdc=768,16,32
hdc=noprobe
ide_core.noprobe=1.0
Note that when only one IDE device is attached to an interface, it should be
jumpered as "single" or "master", *not* "slave". Many folks have had
@@ -174,9 +174,7 @@ to /etc/modprobe.conf.
When ide.c is used as a module, you can pass command line parameters to the
driver using the "options=" keyword to insmod, while replacing any ',' with
';'. For example:
insmod ide.o options="hda=nodma hdb=nodma"
';'.
================================================================================
@@ -186,18 +184,10 @@ Summary of ide driver parameters for kernel command line
"hdx=" is recognized for all "x" from "a" to "u", such as "hdc".
"hdx=noprobe" : drive may be present, but do not probe for it
"hdx=none" : drive is NOT present, ignore cmos and do not probe
"hdx=nowerr" : ignore the WRERR_STAT bit on this drive
"hdx=cdrom" : drive is present, and is a cdrom drive
"hdx=cyl,head,sect" : disk drive is present, with specified geometry
"hdx=nodma" : disallow DMA
"ide=doubler" : probe/support IDE doublers on Amiga
There may be more options than shown -- use the source, Luke!
@@ -230,6 +220,16 @@ a case please report it as a bug instead) use "ignore_cable" kernel parameter:
* "ignore_cable=[interface_number]" module parameter (for ide_core module)
if IDE is compiled as module
Other kernel parameters for ide_core are:
* "nodma=[interface_number.device_number]" to disallow DMA for a device
* "noflush=[interface_number.device_number]" to disable flush requests
* "noprobe=[interface_number.device_number]" to skip probing
* "nowerr=[interface_number.device_number]" to ignore the WRERR_STAT bit
================================================================================
Some Terminology