diff options
Diffstat (limited to 'drivers/ide/Kconfig')
| -rw-r--r-- | drivers/ide/Kconfig | 22 |
1 files changed, 18 insertions, 4 deletions
diff --git a/drivers/ide/Kconfig b/drivers/ide/Kconfig index 6eaece96524e..d1e8df187222 100644 --- 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 |