Add the rt linux 4.1.3-rt3 as base

Import the rt linux 4.1.3-rt3 as OPNFV kvm base.

It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:

commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date:   Sat Jul 25 12:13:34 2015 +0200

    Prepare v4.1.3-rt3

    Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>

We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.

Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>

1 files changed, 56 insertions, 0 deletions

diff --git a/kernel/drivers/net/caif/Kconfig b/kernel/drivers/net/caif/Kconfig
new file mode 100644
index 000000000..547098086
--- /dev/null
+++ b/kernel/drivers/net/caif/Kconfig
@@ -0,0 +1,56 @@
+#
+# CAIF physical drivers
+#
+
+comment "CAIF transport drivers"
+
+config CAIF_TTY
+	tristate "CAIF TTY transport driver"
+	depends on CAIF && TTY
+	default n
+	---help---
+	The CAIF TTY transport driver is a Line Discipline (ldisc)
+	identified as N_CAIF. When this ldisc is opened from user space
+	it will redirect the TTY's traffic into the CAIF stack.
+
+config CAIF_SPI_SLAVE
+	tristate "CAIF SPI transport driver for slave interface"
+	depends on CAIF && HAS_DMA
+	default n
+	---help---
+	The CAIF Link layer SPI Protocol driver for Slave SPI interface.
+	This driver implements a platform driver to accommodate for a
+	platform specific SPI device. A sample CAIF SPI Platform device is
+	provided in Documentation/networking/caif/spi_porting.txt
+
+config CAIF_SPI_SYNC
+	bool "Next command and length in start of frame"
+	depends on CAIF_SPI_SLAVE
+	default n
+	---help---
+	Putting the next command and length in the start of the frame can
+	help to synchronize to the next transfer in case of over or under-runs.
+	This option also needs to be enabled on the modem.
+
+config CAIF_HSI
+       tristate "CAIF HSI transport driver"
+       depends on CAIF
+       default n
+       ---help---
+       The caif low level driver for CAIF over HSI.
+       Be aware that if you enable this then you also need to
+       enable a low-level HSI driver.
+
+config CAIF_VIRTIO
+	tristate "CAIF virtio transport driver"
+	depends on CAIF && HAS_DMA
+	select VHOST_RING
+	select VIRTIO
+	select GENERIC_ALLOCATOR
+	default n
+	---help---
+	The caif driver for CAIF over Virtio.
+
+if CAIF_VIRTIO
+source "drivers/vhost/Kconfig"
+endif