OpenCloudOS-Kernel/drivers/rapidio/Kconfig

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#
# RapidIO configuration
#
source "drivers/rapidio/devices/Kconfig"
config RAPIDIO_DISC_TIMEOUT
int "Discovery timeout duration (seconds)"
depends on RAPIDIO
default "30"
---help---
Amount of time a discovery node waits for a host to complete
enumeration before giving up.
config RAPIDIO_ENABLE_RX_TX_PORTS
bool "Enable RapidIO Input/Output Ports"
depends on RAPIDIO
---help---
The RapidIO specification describes a Output port transmit
enable and a Input port receive enable. The recommended state
for Input ports and Output ports should be disabled. When
this switch is set the RapidIO subsystem will enable all
ports for Input/Output direction to allow other traffic
than Maintenance transfers.
config RAPIDIO_DMA_ENGINE
bool "DMA Engine support for RapidIO"
depends on RAPIDIO
select DMADEVICES
select DMA_ENGINE
help
Say Y here if you want to use DMA Engine frameork for RapidIO data
transfers to/from target RIO devices. RapidIO uses NREAD and
NWRITE (NWRITE_R, SWRITE) requests to transfer data between local
memory and memory on remote target device. You need a DMA controller
capable to perform data transfers to/from RapidIO.
If you are unsure about this, say Y here.
config RAPIDIO_DEBUG
bool "RapidIO subsystem debug messages"
depends on RAPIDIO
help
Say Y here if you want the RapidIO subsystem to produce a bunch of
debug messages to the system log. Select this if you are having a
problem with the RapidIO subsystem and want to see more of what is
going on.
If you are unsure about this, say N here.
rapidio: make enumeration/discovery configurable Systems that use RapidIO fabric may need to implement their own enumeration and discovery methods which are better suitable for needs of a target application. The following set of patches is intended to simplify process of introduction of new RapidIO fabric enumeration/discovery methods. The first patch offers ability to add new RapidIO enumeration/discovery methods using kernel configuration options. This new configuration option mechanism allows to select statically linked or modular enumeration/discovery method(s) from the list of existing methods or use external module(s). This patch also updates the currently existing enumeration/discovery code to be used as a statically linked or modular method. The corresponding configuration option is named "Basic enumeration/discovery" method. This is the only one configuration option available today but new methods are expected to be introduced after adoption of provided patches. The second patch address a long time complaint of RapidIO subsystem users regarding fabric enumeration/discovery start sequence. Existing implementation offers only a boot-time enumeration/discovery start which requires synchronized boot of all endpoints in RapidIO network. While it works for small closed configurations with limited number of endpoints, using this approach in systems with large number of endpoints is quite challenging. To eliminate requirement for synchronized start the second patch introduces RapidIO enumeration/discovery start from user space. For compatibility with the existing RapidIO subsystem implementation, automatic boot time enumeration/discovery start can be configured in by specifying "rio-scan.scan=1" command line parameter if statically linked basic enumeration method is selected. This patch: Rework to implement RapidIO enumeration/discovery method selection combined with ability to use enumeration/discovery as a kernel module. This patch adds ability to introduce new RapidIO enumeration/discovery methods using kernel configuration options. Configuration option mechanism allows to select statically linked or modular enumeration/discovery method from the list of existing methods or use external modules. If a modular enumeration/discovery is selected each RapidIO mport device can have its own method attached to it. The existing enumeration/discovery code was updated to be used as statically linked or modular method. This configuration option is named "Basic enumeration/discovery" method. Several common routines have been moved from rio-scan.c to make them available to other enumeration methods and reduce number of exported symbols. Signed-off-by: Alexandre Bounine <alexandre.bounine@idt.com> Cc: Matt Porter <mporter@kernel.crashing.org> Cc: Li Yang <leoli@freescale.com> Cc: Kumar Gala <galak@kernel.crashing.org> Cc: Andre van Herk <andre.van.herk@Prodrive.nl> Cc: Micha Nelissen <micha.nelissen@Prodrive.nl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-05-25 06:55:05 +08:00
choice
prompt "Enumeration method"
depends on RAPIDIO
default RAPIDIO_ENUM_BASIC
help
There are different enumeration and discovery mechanisms offered
for RapidIO subsystem. You may select single built-in method or
or any number of methods to be built as modules.
Selecting a built-in method disables use of loadable methods.
If unsure, select Basic built-in.
config RAPIDIO_ENUM_BASIC
tristate "Basic"
help
This option includes basic RapidIO fabric enumeration and discovery
mechanism similar to one described in RapidIO specification Annex 1.
endchoice
source "drivers/rapidio/switches/Kconfig"