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authorFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>2007-07-17 12:22:09 +0200
committerJens Axboe <jens.axboe@oracle.com>2007-07-17 12:22:09 +0200
commit319a7b7fb98f6927d6eedeb627f72f54c377f9ce (patch)
tree75a1ac4fb6ac83678d5744709b5e1fdfc9756824 /block/Kconfig
parent0ed081ce203b0fd9a44763b70f41e36596f9b431 (diff)
downloadconfigs-319a7b7fb98f6927d6eedeb627f72f54c377f9ce.tar.gz
bsg: Kconfig updates
- add the detailed explanation. - remove 'default y'. - make 'EXPERIMENTAL' keyword visible to the user in menu. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'block/Kconfig')
-rw-r--r--block/Kconfig13
1 files changed, 9 insertions, 4 deletions
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