Merge branch 'for-linus' of git://git.o-hand.com/linux-rpurdie-leds

[pandora-kernel.git] / drivers / ide / Kconfig

diff --git a/drivers/ide/Kconfig b/drivers/ide/Kconfig
index 6d9fd92..d1e8df1 100644 (file)
--- a/drivers/ide/Kconfig
+++ b/drivers/ide/Kconfig
@@ -152,9 +152,22 @@ config BLK_DEV_IDEDISK
          If unsure, say Y.
 
 config IDEDISK_MULTI_MODE
-       bool "Use multi-mode by default"
-       help
-         If you get this error, try to say Y here:
+       bool "Use multiple sector mode for Programmed Input/Output by default"
+       help
+         This setting is irrelevant for most IDE disks, with direct memory
+         access, to which multiple sector mode does not apply. Multiple sector
+         mode is a feature of most modern IDE hard drives, permitting the
+         transfer of multiple sectors per Programmed Input/Output interrupt,
+         rather than the usual one sector per interrupt. When this feature is
+         enabled, it can reduce operating system overhead for disk Programmed
+         Input/Output. On some systems, it also can increase the data
+         throughput of Programmed Input/Output. Some drives, however, seemed
+         to run slower with multiple sector mode enabled. Some drives claimed
+         to support multiple sector mode, but lost data at some settings.
+         Under rare circumstances, such failures could result in massive
+         filesystem corruption.
+
+         If you get the following error, try to say Y here:
 
          hda: set_multmode: status=0x51 { DriveReady SeekComplete Error }
          hda: set_multmode: error=0x04 { DriveStatusError }
@@ -380,9 +393,10 @@ config IDEPCI_SHARE_IRQ
 config IDEPCI_PCIBUS_ORDER
        def_bool BLK_DEV_IDE=y && BLK_DEV_IDEPCI
 
+# TODO: split it on per host driver config options (or module parameters)
 config BLK_DEV_OFFBOARD
        bool "Boot off-board chipsets first support"
-       depends on BLK_DEV_IDEPCI
+       depends on BLK_DEV_IDEPCI && (BLK_DEV_AEC62XX || BLK_DEV_GENERIC || BLK_DEV_HPT34X || BLK_DEV_HPT366 || BLK_DEV_PDC202XX_NEW || BLK_DEV_PDC202XX_OLD || BLK_DEV_TC86C001)
        help
          Normally, IDE controllers built into the motherboard (on-board
          controllers) are assigned to ide0 and ide1 while those on add-in PCI
@@ -1056,6 +1070,9 @@ endif
 config BLK_DEV_IDEDMA
        def_bool BLK_DEV_IDEDMA_PCI || BLK_DEV_IDEDMA_PMAC || BLK_DEV_IDEDMA_ICS || BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA
 
+config IDE_ARCH_OBSOLETE_INIT
+       def_bool ALPHA || (ARM && !ARCH_L7200) || BLACKFIN || X86 || IA64 || M32R || MIPS || PARISC || PPC || (SUPERH64 && BLK_DEV_IDEPCI) || SPARC
+
 endif
 
 config BLK_DEV_HD_ONLY