staging: virthba driver to access shared SCSI hba
The virthba module provides access to a shared SCSI host bus adapter
and one or more disk devices, by proxying SCSI commands between the
guest and the service partition that owns the shared SCSI adapter,
using a channel between the guest and the service partition. The disks
that appear on the shared bus are defined by the s-Par configuration
and enforced by the service partition, while the guest driver handles
sending commands and handling responses. Each disk is shared as a
whole to a guest. Sharing the bus adapter in this way provides
resiliency; should the device encounter an error, only the service
partition is rebooted, and the device is reinitialized. This allows
guests to continue running and to recover from the error.
Signed-off-by: Ken Cox <jkc@redhat.com>
Cc: Ben Romer <sparmaintainer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/staging/unisys/virthba/Kconfig b/drivers/staging/unisys/virthba/Kconfig
new file mode 100644
index 0000000..d2ef0fc
--- /dev/null
+++ b/drivers/staging/unisys/virthba/Kconfig
@@ -0,0 +1,10 @@
+#
+# Unisys virthba configuration
+#
+
+config UNISYS_VIRTHBA
+ tristate "Unisys virthba driver"
+ depends on UNISYSSPAR && UNISYS_VISORCHIPSET && UNISYS_CHANNELSTUB && UNISYS_UISLIB && UNISYS_VIRTPCI
+ ---help---
+ If you say Y here, you will enable the Unisys virthba driver.
+