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authorRobert Hancock <hancockrwd@gmail.com>2009-07-14 20:43:39 -0600
committerJeff Garzik <jgarzik@redhat.com>2009-09-01 19:47:20 -0400
commit6521148c6449724c3b707820b9c535c7e8b8afcd (patch)
treeb976cb33b4e7f09bdc765a09702659c14474c540 /drivers/ata/Kconfig
parent1e641060c4b564e820abdb6a4c7a603a0d386250 (diff)
downloadop-kernel-dev-6521148c6449724c3b707820b9c535c7e8b8afcd.zip
op-kernel-dev-6521148c6449724c3b707820b9c535c7e8b8afcd.tar.gz
libata: add command name parsing for error output
This patch improve libata's output for error/notification messages to allow easier comprehension and debugging: When ATAPI commands issued through the SCSI layer fail, use SCSI functions to print the CDB in human-readable form instead of just dumping out the CDB in hex. Print out the name of the failed command (as defined by the ATA specification) in error handling output along with the raw register contents. When reporting status of ACPI taskfile commands executed on resume, also output the names of the commands being executed (or not) in readable form. Since the extra data for printing command names increases kernel size slightly, a config option has been added to allow disabling command name output (as well as some of the error register parsing) for those highly sensitive to kernel text size. Signed-off-by: Robert Hancock <hancockrwd@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Diffstat (limited to 'drivers/ata/Kconfig')
-rw-r--r--drivers/ata/Kconfig11
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/ata/Kconfig b/drivers/ata/Kconfig
index b17c57f..8e64d3c 100644
--- a/drivers/ata/Kconfig
+++ b/drivers/ata/Kconfig
@@ -26,6 +26,17 @@ config ATA_NONSTANDARD
bool
default n
+config ATA_VERBOSE_ERROR
+ bool "Verbose ATA error reporting"
+ default y
+ help
+ This option adds parsing of ATA command descriptions and error bits
+ in libata kernel output, making it easier to interpret.
+ This option will enlarge the kernel by approx. 6KB. Disable it only
+ if kernel size is more important than ease of debugging.
+
+ If unsure, say Y.
+
config ATA_ACPI
bool "ATA ACPI Support"
depends on ACPI && PCI
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