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Merge git://git.infradead.org/iommu-2.6
[pandora-kernel.git] / Documentation / kernel-parameters.txt
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 873b680..2c85c06 100644 (file)
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -88,8 +88,8 @@ parameter is applicable:
        RAM     RAM disk support is enabled.
        S390    S390 architecture is enabled.
        SCSI    Appropriate SCSI support is enabled.
        RAM     RAM disk support is enabled.
        S390    S390 architecture is enabled.
        SCSI    Appropriate SCSI support is enabled.
-                       A lot of drivers has their options described inside of
-                       Documentation/scsi/.
+                       A lot of drivers have their options described inside
+                       the Documentation/scsi/ sub-directory.
        SECURITY Different security models are enabled.
        SELINUX SELinux support is enabled.
        APPARMOR AppArmor support is enabled.
        SECURITY Different security models are enabled.
        SELINUX SELinux support is enabled.
        APPARMOR AppArmor support is enabled.
@@ -284,27 +284,12 @@ and is between 256 and 4096 characters. It is defined in the file
        add_efi_memmap  [EFI; X86] Include EFI memory map in
                        kernel's map of available physical RAM.
 
        add_efi_memmap  [EFI; X86] Include EFI memory map in
                        kernel's map of available physical RAM.
 
-       advansys=       [HW,SCSI]
-                       See header of drivers/scsi/advansys.c.
-
        agp=            [AGP]
                        { off | try_unsupported }
                        off: disable AGP support
                        try_unsupported: try to drive unsupported chipsets
                                (may crash computer or cause data corruption)
 
        agp=            [AGP]
                        { off | try_unsupported }
                        off: disable AGP support
                        try_unsupported: try to drive unsupported chipsets
                                (may crash computer or cause data corruption)
 
-       aha152x=        [HW,SCSI]
-                       See Documentation/scsi/aha152x.txt.
-
-       aha1542=        [HW,SCSI]
-                       Format: <portbase>[,<buson>,<busoff>[,<dmaspeed>]]
-
-       aic7xxx=        [HW,SCSI]
-                       See Documentation/scsi/aic7xxx.txt.
-
-       aic79xx=        [HW,SCSI]
-                       See Documentation/scsi/aic79xx.txt.
-
        ALSA            [HW,ALSA]
                        See Documentation/sound/alsa/alsa-parameters.txt
 
        ALSA            [HW,ALSA]
                        See Documentation/sound/alsa/alsa-parameters.txt
 
@@ -368,8 +353,6 @@ and is between 256 and 4096 characters. It is defined in the file
 
        atarimouse=     [HW,MOUSE] Atari Mouse
 
 
        atarimouse=     [HW,MOUSE] Atari Mouse
 
-       atascsi=        [HW,SCSI] Atari SCSI
-
        atkbd.extra=    [HW] Enable extra LEDs and keys on IBM RapidAccess,
                        EzKey and similar keyboards
 
        atkbd.extra=    [HW] Enable extra LEDs and keys on IBM RapidAccess,
                        EzKey and similar keyboards
 
@@ -419,10 +402,6 @@ and is between 256 and 4096 characters. It is defined in the file
        bttv.pll=       See Documentation/video4linux/bttv/Insmod-options
        bttv.tuner=     and Documentation/video4linux/bttv/CARDLIST
 
        bttv.pll=       See Documentation/video4linux/bttv/Insmod-options
        bttv.tuner=     and Documentation/video4linux/bttv/CARDLIST
 
-       BusLogic=       [HW,SCSI]
-                       See drivers/scsi/BusLogic.c, comment before function
-                       BusLogic_ParseDriverOptions().
-
        c101=           [NET] Moxa C101 synchronous serial card
 
        cachesize=      [BUGS=X86-32] Override level 2 CPU cache size detection.
        c101=           [NET] Moxa C101 synchronous serial card
 
        cachesize=      [BUGS=X86-32] Override level 2 CPU cache size detection.
@@ -671,8 +650,6 @@ and is between 256 and 4096 characters. It is defined in the file
 
        dscc4.setup=    [NET]
 
 
        dscc4.setup=    [NET]
 
-       dtc3181e=       [HW,SCSI]
-
        dynamic_printk  Enables pr_debug()/dev_dbg() calls if
                        CONFIG_DYNAMIC_PRINTK_DEBUG has been enabled.
                        These can also be switched on/off via
        dynamic_printk  Enables pr_debug()/dev_dbg() calls if
                        CONFIG_DYNAMIC_PRINTK_DEBUG has been enabled.
                        These can also be switched on/off via
@@ -713,8 +690,6 @@ and is between 256 and 4096 characters. It is defined in the file
                        This is desgined to be used in conjunction with
                        the boot argument: earlyprintk=vga
 
                        This is desgined to be used in conjunction with
                        the boot argument: earlyprintk=vga
 
-       eata=           [HW,SCSI]
-
        edd=            [EDD]
                        Format: {"off" | "on" | "skip[mbr]"}
 
        edd=            [EDD]
                        Format: {"off" | "on" | "skip[mbr]"}
 
@@ -770,12 +745,6 @@ and is between 256 and 4096 characters. It is defined in the file
                        Format: <interval>,<probability>,<space>,<times>
                        See also /Documentation/fault-injection/.
 
                        Format: <interval>,<probability>,<space>,<times>
                        See also /Documentation/fault-injection/.
 
-       fd_mcs=         [HW,SCSI]
-                       See header of drivers/scsi/fd_mcs.c.
-
-       fdomain=        [HW,SCSI]
-                       See header of drivers/scsi/fdomain.c.
-
        floppy=         [HW]
                        See Documentation/blockdev/floppy.txt.
 
        floppy=         [HW]
                        See Documentation/blockdev/floppy.txt.
 
@@ -835,14 +804,9 @@ and is between 256 and 4096 characters. It is defined in the file
                        When zero, profiling data is discarded and associated
                        debugfs files are removed at module unload time.
 
                        When zero, profiling data is discarded and associated
                        debugfs files are removed at module unload time.
 
-       gdth=           [HW,SCSI]
-                       See header of drivers/scsi/gdth.c.
-
        gpt             [EFI] Forces disk with valid GPT signature but
                        invalid Protective MBR to be treated as GPT.
 
        gpt             [EFI] Forces disk with valid GPT signature but
                        invalid Protective MBR to be treated as GPT.
 
-       gvp11=          [HW,SCSI]
-
        hashdist=       [KNL,NUMA] Large hashes allocated during boot
                        are distributed across NUMA nodes.  Defaults on
                        for 64bit NUMA, off otherwise.
        hashdist=       [KNL,NUMA] Large hashes allocated during boot
                        are distributed across NUMA nodes.  Defaults on
                        for 64bit NUMA, off otherwise.
@@ -931,9 +895,6 @@ and is between 256 and 4096 characters. It is defined in the file
        i8k.restricted  [HW] Allow controlling fans only if SYS_ADMIN
                        capability is set.
 
        i8k.restricted  [HW] Allow controlling fans only if SYS_ADMIN
                        capability is set.
 
-       ibmmcascsi=     [HW,MCA,SCSI] IBM MicroChannel SCSI adapter
-                       See Documentation/mca.txt.
-
        icn=            [HW,ISDN]
                        Format: <io>[,<membase>[,<icn_id>[,<icn_id2>]]]
 
        icn=            [HW,ISDN]
                        Format: <io>[,<membase>[,<icn_id>[,<icn_id2>]]]
 
@@ -983,9 +944,6 @@ and is between 256 and 4096 characters. It is defined in the file
                        programs exec'd, files mmap'd for exec, and all files
                        opened for read by uid=0.
 
                        programs exec'd, files mmap'd for exec, and all files
                        opened for read by uid=0.
 
-       in2000=         [HW,SCSI]
-                       See header of drivers/scsi/in2000.c.
-
        init=           [KNL]
                        Format: <full_path>
                        Run specified binary instead of /sbin/init as init
        init=           [KNL]
                        Format: <full_path>
                        Run specified binary instead of /sbin/init as init
@@ -1023,6 +981,12 @@ and is between 256 and 4096 characters. It is defined in the file
                        result in a hardware IOTLB flush operation as opposed
                        to batching them for performance.
 
                        result in a hardware IOTLB flush operation as opposed
                        to batching them for performance.
 
+       intremap=       [X86-64, Intel-IOMMU]
+                       Format: { on (default) | off | nosid }
+                       on      enable Interrupt Remapping (default)
+                       off     disable Interrupt Remapping
+                       nosid   disable Source ID checking
+
        inttest=        [IA64]
 
        iomem=          Disable strict checking of access to MMIO memory
        inttest=        [IA64]
 
        iomem=          Disable strict checking of access to MMIO memory
@@ -1063,9 +1027,6 @@ and is between 256 and 4096 characters. It is defined in the file
                        See comment before ip2_setup() in
                        drivers/char/ip2/ip2base.c.
 
                        See comment before ip2_setup() in
                        drivers/char/ip2/ip2base.c.
 
-       ips=            [HW,SCSI] Adaptec / IBM ServeRAID controller
-                       See header of drivers/scsi/ips.c.
-
        irqfixup        [HW]
                        When an interrupt is not handled search all handlers
                        for it. Intended to get systems with badly broken
        irqfixup        [HW]
                        When an interrupt is not handled search all handlers
                        for it. Intended to get systems with badly broken
@@ -1341,9 +1302,6 @@ and is between 256 and 4096 characters. It is defined in the file
        ltpc=           [NET]
                        Format: <io>,<irq>,<dma>
 
        ltpc=           [NET]
                        Format: <io>,<irq>,<dma>
 
-       mac5380=        [HW,SCSI] Format:
-                       <can_queue>,<cmd_per_lun>,<sg_tablesize>,<hostid>,<use_tags>
-
        machvec=        [IA64] Force the use of a particular machine-vector
                        (machvec) in a generic kernel.
                        Example: machvec=hpzx1_swiotlb
        machvec=        [IA64] Force the use of a particular machine-vector
                        (machvec) in a generic kernel.
                        Example: machvec=hpzx1_swiotlb
@@ -1365,13 +1323,6 @@ and is between 256 and 4096 characters. It is defined in the file
                        be mounted
                        Format: <1-256>
 
                        be mounted
                        Format: <1-256>
 
-       max_luns=       [SCSI] Maximum number of LUNs to probe.
-                       Should be between 1 and 2^32-1.
-
-       max_report_luns=
-                       [SCSI] Maximum number of LUNs received.
-                       Should be between 1 and 16384.
-
        mcatest=        [IA-64]
 
        mce             [X86-32] Machine Check Exception
        mcatest=        [IA-64]
 
        mce             [X86-32] Machine Check Exception
@@ -1568,19 +1519,6 @@ and is between 256 and 4096 characters. It is defined in the file
 
        n2=             [NET] SDL Inc. RISCom/N2 synchronous serial card
 
 
        n2=             [NET] SDL Inc. RISCom/N2 synchronous serial card
 
-       NCR_D700=       [HW,SCSI]
-                       See header of drivers/scsi/NCR_D700.c.
-
-       ncr5380=        [HW,SCSI]
-
-       ncr53c400=      [HW,SCSI]
-
-       ncr53c400a=     [HW,SCSI]
-
-       ncr53c406a=     [HW,SCSI]
-
-       ncr53c8xx=      [HW,SCSI]
-
        netdev=         [NET] Network devices parameters
                        Format: <irq>,<io>,<mem_start>,<mem_end>,<name>
                        Note that mem_start is often overloaded to mean
        netdev=         [NET] Network devices parameters
                        Format: <irq>,<io>,<mem_start>,<mem_end>,<name>
                        Note that mem_start is often overloaded to mean
@@ -1749,6 +1687,7 @@ and is between 256 and 4096 characters. It is defined in the file
 
        nointremap      [X86-64, Intel-IOMMU] Do not enable interrupt
                        remapping.
 
        nointremap      [X86-64, Intel-IOMMU] Do not enable interrupt
                        remapping.
+                       [Deprecated - use intremap=off]
 
        nointroute      [IA-64]
 
 
        nointroute      [IA-64]
 
@@ -1859,10 +1798,6 @@ and is between 256 and 4096 characters. It is defined in the file
        OSS             [HW,OSS]
                        See Documentation/sound/oss/oss-parameters.txt
 
        OSS             [HW,OSS]
                        See Documentation/sound/oss/oss-parameters.txt
 
-       osst=           [HW,SCSI] SCSI Tape Driver
-                       Format: <buffer_size>,<write_threshold>
-                       See also Documentation/scsi/st.txt.
-
        panic=          [KNL] Kernel behaviour on panic
                        Format: <timeout>
 
        panic=          [KNL] Kernel behaviour on panic
                        Format: <timeout>
 
@@ -1895,9 +1830,6 @@ and is between 256 and 4096 characters. It is defined in the file
                        Currently this function knows 686a and 8231 chips.
                        Format: [spp|ps2|epp|ecp|ecpepp]
 
                        Currently this function knows 686a and 8231 chips.
                        Format: [spp|ps2|epp|ecp|ecpepp]
 
-       pas16=          [HW,SCSI]
-                       See header of drivers/scsi/pas16.c.
-
        pause_on_oops=
                        Halt all CPUs after the first oops has been printed for
                        the specified number of seconds.  This is to be used if
        pause_on_oops=
                        Halt all CPUs after the first oops has been printed for
                        the specified number of seconds.  This is to be used if
@@ -2264,30 +2196,6 @@ and is between 256 and 4096 characters. It is defined in the file
 
        sched_debug     [KNL] Enables verbose scheduler debug messages.
 
 
        sched_debug     [KNL] Enables verbose scheduler debug messages.
 
-       scsi_debug_*=   [SCSI]
-                       See drivers/scsi/scsi_debug.c.
-
-       scsi_default_dev_flags=
-                       [SCSI] SCSI default device flags
-                       Format: <integer>
-
-       scsi_dev_flags= [SCSI] Black/white list entry for vendor and model
-                       Format: <vendor>:<model>:<flags>
-                       (flags are integer value)
-
-       scsi_logging_level=     [SCSI] a bit mask of logging levels
-                       See drivers/scsi/scsi_logging.h for bits.  Also
-                       settable via sysctl at dev.scsi.logging_level
-                       (/proc/sys/dev/scsi/logging_level).
-                       There is also a nice 'scsi_logging_level' script in the
-                       S390-tools package, available for download at
-                       http://www-128.ibm.com/developerworks/linux/linux390/s390-tools-1.5.4.html
-
-       scsi_mod.scan=  [SCSI] sync (default) scans SCSI busses as they are
-                       discovered.  async scans them in kernel threads,
-                       allowing boot to proceed.  none ignores them, expecting
-                       user space to do the scan.
-
        security=       [SECURITY] Choose a security module to enable at boot.
                        If this boot parameter is not specified, only the first
                        security module asking for security registration will be
        security=       [SECURITY] Choose a security module to enable at boot.
                        If this boot parameter is not specified, only the first
                        security module asking for security registration will be
@@ -2321,9 +2229,6 @@ and is between 256 and 4096 characters. It is defined in the file
                        The parameter means the number of CPUs to show,
                        for example 1 means boot CPU only.
 
                        The parameter means the number of CPUs to show,
                        for example 1 means boot CPU only.
 
-       sim710=         [SCSI,HW]
-                       See header of drivers/scsi/sim710.c.
-
        simeth=         [IA-64]
        simscsi=
 
        simeth=         [IA-64]
        simscsi=
 
@@ -2395,9 +2300,6 @@ and is between 256 and 4096 characters. It is defined in the file
        spia_pedr=
        spia_peddr=
 
        spia_pedr=
        spia_peddr=
 
-       st=             [HW,SCSI] SCSI tape parameters (buffers, etc.)
-                       See Documentation/scsi/st.txt.
-
        stacktrace      [FTRACE]
                        Enabled the stack tracer on boot up.
 
        stacktrace      [FTRACE]
                        Enabled the stack tracer on boot up.
 
@@ -2455,18 +2357,12 @@ and is between 256 and 4096 characters. It is defined in the file
 
        switches=       [HW,M68k]
 
 
        switches=       [HW,M68k]
 
-       sym53c416=      [HW,SCSI]
-                       See header of drivers/scsi/sym53c416.c.
-
        sysrq_always_enabled
                        [KNL]
                        Ignore sysrq setting - this boot parameter will
                        neutralize any effect of /proc/sys/kernel/sysrq.
                        Useful for debugging.
 
        sysrq_always_enabled
                        [KNL]
                        Ignore sysrq setting - this boot parameter will
                        neutralize any effect of /proc/sys/kernel/sysrq.
                        Useful for debugging.
 
-       t128=           [HW,SCSI]
-                       See header of drivers/scsi/t128.c.
-
        tdfx=           [HW,DRM]
 
        test_suspend=   [SUSPEND]
        tdfx=           [HW,DRM]
 
        test_suspend=   [SUSPEND]
@@ -2503,10 +2399,6 @@ and is between 256 and 4096 characters. It is defined in the file
                        <deci-seconds>: poll all this frequency
                        0: no polling (default)
 
                        <deci-seconds>: poll all this frequency
                        0: no polling (default)
 
-       tmscsim=        [HW,SCSI]
-                       See comment before function dc390_setup() in
-                       drivers/scsi/tmscsim.c.
-
        topology=       [S390]
                        Format: {off | on}
                        Specify if the kernel should make use of the cpu
        topology=       [S390]
                        Format: {off | on}
                        Specify if the kernel should make use of the cpu
@@ -2547,9 +2439,6 @@ and is between 256 and 4096 characters. It is defined in the file
                        <port#>,<js1>,<js2>,<js3>,<js4>,<js5>,<js6>,<js7>
                        See also Documentation/input/joystick-parport.txt
 
                        <port#>,<js1>,<js2>,<js3>,<js4>,<js5>,<js6>,<js7>
                        See also Documentation/input/joystick-parport.txt
 
-       u14-34f=        [HW,SCSI] UltraStor 14F/34F SCSI host adapter
-                       See header of drivers/scsi/u14-34f.c.
-
        uhash_entries=  [KNL,NET]
                        Set number of hash buckets for UDP/UDP-Lite connections
 
        uhash_entries=  [KNL,NET]
                        Set number of hash buckets for UDP/UDP-Lite connections
 
@@ -2715,12 +2604,6 @@ and is between 256 and 4096 characters. It is defined in the file
                        overridden by individual drivers. 0 will hide
                        cursors, 1 will display them.
 
                        overridden by individual drivers. 0 will hide
                        cursors, 1 will display them.
 
-       wd33c93=        [HW,SCSI]
-                       See header of drivers/scsi/wd33c93.c.
-
-       wd7000=         [HW,SCSI]
-                       See header of drivers/scsi/wd7000.c.
-
        watchdog timers [HW,WDT] For information on watchdog timers,
                        see Documentation/watchdog/watchdog-parameters.txt
                        or other driver-specific files in the
        watchdog timers [HW,WDT] For information on watchdog timers,
                        see Documentation/watchdog/watchdog-parameters.txt
                        or other driver-specific files in the
Pandora Kernel Repository