From 319a7b7fb98f6927d6eedeb627f72f54c377f9ce Mon Sep 17 00:00:00 2001 From: FUJITA Tomonori Date: Tue, 17 Jul 2007 12:22:09 +0200 Subject: bsg: Kconfig updates - add the detailed explanation. - remove 'default y'. - make 'EXPERIMENTAL' keyword visible to the user in menu. Signed-off-by: FUJITA Tomonori Signed-off-by: Jens Axboe --- block/Kconfig | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) (limited to 'block/Kconfig') diff --git a/block/Kconfig b/block/Kconfig index 6597b60e8e6..0768741d681 100644 --- a/block/Kconfig +++ b/block/Kconfig @@ -52,11 +52,16 @@ config LSF endif # BLOCK config BLK_DEV_BSG - bool "Block layer SG support" + bool "Block layer SG support v4 (EXPERIMENTAL)" depends on (SCSI=y) && EXPERIMENTAL - default y ---help--- - Saying Y here will enable generic SG (SCSI generic) v4 - support for any block device. + Saying Y here will enable generic SG (SCSI generic) v4 support + for any block device. + + Unlike SG v3 (aka block/scsi_ioctl.c drivers/scsi/sg.c), SG v4 + can handle complicated SCSI commands: tagged variable length cdbs + with bidirectional data transfers and generic request/response + protocols (e.g. Task Management Functions and SMP in Serial + Attached SCSI). source block/Kconfig.iosched -- cgit v1.2.3-70-g09d2