[PATCH char-misc-next v4 03/13] misc: mic: SCIF Hardware Bus

2015-04-29 Thread Sudeep Dutt 
The SCIF hardware bus abstracts the low level hardware driver details
like interrupts and mapping remote memory so that the same SCIF driver
can work without any changes with the MIC host or card driver as long
as the hardware bus operations are implemented. The SCIF hardware
device is registered by the host and card drivers on the SCIF hardware
bus resulting in probing the SCIF driver.

Reviewed-by: Nikhil Rao 
Reviewed-by: Ashutosh Dixit 
Signed-off-by: Sudeep Dutt 
---
 drivers/misc/mic/Kconfig|  17 
 drivers/misc/mic/Makefile   |   2 +-
 drivers/misc/mic/bus/Makefile   |   1 +
 drivers/misc/mic/bus/scif_bus.h | 129 
 drivers/misc/mic/bus/scif_bus.c | 210 
 5 files changed, 358 insertions(+), 1 deletion(-)
 create mode 100644 drivers/misc/mic/bus/scif_bus.h
 create mode 100644 drivers/misc/mic/bus/scif_bus.c

diff --git a/drivers/misc/mic/Kconfig b/drivers/misc/mic/Kconfig
index cc4eef0..afc9f53 100644
--- a/drivers/misc/mic/Kconfig
+++ b/drivers/misc/mic/Kconfig
@@ -15,6 +15,23 @@ config INTEL_MIC_BUS
  OS and tools for MIC to use with this driver are available from
  .
 
+comment "SCIF Bus Driver"
+
+config SCIF_BUS
+   tristate "SCIF Bus Driver"
+   depends on 64BIT && PCI && X86 && X86_DEV_DMA_OPS
+   help
+ This option is selected by any driver which registers a
+ device or driver on the SCIF Bus, such as CONFIG_INTEL_MIC_HOST
+ and CONFIG_INTEL_MIC_CARD.
+
+ If you are building a host/card kernel with an Intel MIC device
+ then say M (recommended) or Y, else say N. If unsure say N.
+
+ More information about the Intel MIC family as well as the Linux
+ OS and tools for MIC to use with this driver are available from
+ .
+
 comment "Intel MIC Host Driver"
 
 config INTEL_MIC_HOST
diff --git a/drivers/misc/mic/Makefile b/drivers/misc/mic/Makefile
index e9bf148..6bc6083 100644
--- a/drivers/misc/mic/Makefile
+++ b/drivers/misc/mic/Makefile
@@ -4,4 +4,4 @@
 #
 obj-$(CONFIG_INTEL_MIC_HOST) += host/
 obj-$(CONFIG_INTEL_MIC_CARD) += card/
-obj-$(CONFIG_INTEL_MIC_BUS) += bus/
+obj-y += bus/
diff --git a/drivers/misc/mic/bus/Makefile b/drivers/misc/mic/bus/Makefile
index d85c7f2..1ed37e2 100644
--- a/drivers/misc/mic/bus/Makefile
+++ b/drivers/misc/mic/bus/Makefile
@@ -3,3 +3,4 @@
 # Copyright(c) 2014, Intel Corporation.
 #
 obj-$(CONFIG_INTEL_MIC_BUS) += mic_bus.o
+obj-$(CONFIG_SCIF_BUS) += scif_bus.o
diff --git a/drivers/misc/mic/bus/scif_bus.h b/drivers/misc/mic/bus/scif_bus.h
new file mode 100644
index 000..335a228
--- /dev/null
+++ b/drivers/misc/mic/bus/scif_bus.h
@@ -0,0 +1,129 @@
+/*
+ * Intel MIC Platform Software Stack (MPSS)
+ *
+ * Copyright(c) 2014 Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * Intel Symmetric Communications Interface Bus driver.
+ */
+#ifndef _SCIF_BUS_H_
+#define _SCIF_BUS_H_
+/*
+ * Everything a scif driver needs to work with any particular scif
+ * hardware abstraction layer.
+ */
+#include 
+
+#include 
+#include "../common/mic_dev.h"
+
+struct scif_hw_dev_id {
+   u32 device;
+   u32 vendor;
+};
+
+#define MIC_SCIF_DEV 1
+#define SCIF_DEV_ANY_ID 0x
+
+/**
+ * scif_hw_dev - representation of a hardware device abstracted for scif
+ * @hw_ops: the hardware ops supported by this device
+ * @id: the device type identification (used to match it with a driver)
+ * @mmio: MMIO memory window
+ * @aper: Aperture memory window
+ * @dev: underlying device
+ * @dnode - The destination node which this device will communicate with.
+ * @snode - The source node for this device.
+ * @dp - Self device page
+ * @rdp - Remote device page
+ * @dma_ch - Array of DMA channels
+ * @num_dma_ch - Number of DMA channels available
+ */
+struct scif_hw_dev {
+   struct scif_hw_ops *hw_ops;
+   struct scif_hw_dev_id id;
+   struct mic_mw *mmio;
+   struct mic_mw *aper;
+   struct device dev;
+   u8 dnode;
+   u8 snode;
+   void *dp;
+   void __iomem *rdp;
+   struct dma_chan **dma_ch;
+   int num_dma_ch;
+};
+
+/**
+ * scif_driver - operations for a scif I/O driver
+ * @driver: underlying device driver (populate name and owner).
+ * @id_table: the ids serviced by this driver.
+ * @probe: the function to call when a device is found.  Returns 0 or -errno.
+ * @remove: the function to call when a device is removed.
+ */
+struct scif_driver {
+   struct

[PATCH char-misc-next v4 03/13] misc: mic: SCIF Hardware Bus

2015-04-29 Thread Sudeep Dutt 
The SCIF hardware bus abstracts the low level hardware driver details
like interrupts and mapping remote memory so that the same SCIF driver
can work without any changes with the MIC host or card driver as long
as the hardware bus operations are implemented. The SCIF hardware
device is registered by the host and card drivers on the SCIF hardware
bus resulting in probing the SCIF driver.

Reviewed-by: Nikhil Rao nikhil@intel.com
Reviewed-by: Ashutosh Dixit ashutosh.di...@intel.com
Signed-off-by: Sudeep Dutt sudeep.d...@intel.com
---
 drivers/misc/mic/Kconfig|  17 
 drivers/misc/mic/Makefile   |   2 +-
 drivers/misc/mic/bus/Makefile   |   1 +
 drivers/misc/mic/bus/scif_bus.h | 129 
 drivers/misc/mic/bus/scif_bus.c | 210 
 5 files changed, 358 insertions(+), 1 deletion(-)
 create mode 100644 drivers/misc/mic/bus/scif_bus.h
 create mode 100644 drivers/misc/mic/bus/scif_bus.c

diff --git a/drivers/misc/mic/Kconfig b/drivers/misc/mic/Kconfig
index cc4eef0..afc9f53 100644
--- a/drivers/misc/mic/Kconfig
+++ b/drivers/misc/mic/Kconfig
@@ -15,6 +15,23 @@ config INTEL_MIC_BUS
  OS and tools for MIC to use with this driver are available from
  http://software.intel.com/en-us/mic-developer.
 
+comment SCIF Bus Driver
+
+config SCIF_BUS
+   tristate SCIF Bus Driver
+   depends on 64BIT  PCI  X86  X86_DEV_DMA_OPS
+   help
+ This option is selected by any driver which registers a
+ device or driver on the SCIF Bus, such as CONFIG_INTEL_MIC_HOST
+ and CONFIG_INTEL_MIC_CARD.
+
+ If you are building a host/card kernel with an Intel MIC device
+ then say M (recommended) or Y, else say N. If unsure say N.
+
+ More information about the Intel MIC family as well as the Linux
+ OS and tools for MIC to use with this driver are available from
+ http://software.intel.com/en-us/mic-developer.
+
 comment Intel MIC Host Driver
 
 config INTEL_MIC_HOST
diff --git a/drivers/misc/mic/Makefile b/drivers/misc/mic/Makefile
index e9bf148..6bc6083 100644
--- a/drivers/misc/mic/Makefile
+++ b/drivers/misc/mic/Makefile
@@ -4,4 +4,4 @@
 #
 obj-$(CONFIG_INTEL_MIC_HOST) += host/
 obj-$(CONFIG_INTEL_MIC_CARD) += card/
-obj-$(CONFIG_INTEL_MIC_BUS) += bus/
+obj-y += bus/
diff --git a/drivers/misc/mic/bus/Makefile b/drivers/misc/mic/bus/Makefile
index d85c7f2..1ed37e2 100644
--- a/drivers/misc/mic/bus/Makefile
+++ b/drivers/misc/mic/bus/Makefile
@@ -3,3 +3,4 @@
 # Copyright(c) 2014, Intel Corporation.
 #
 obj-$(CONFIG_INTEL_MIC_BUS) += mic_bus.o
+obj-$(CONFIG_SCIF_BUS) += scif_bus.o
diff --git a/drivers/misc/mic/bus/scif_bus.h b/drivers/misc/mic/bus/scif_bus.h
new file mode 100644
index 000..335a228
--- /dev/null
+++ b/drivers/misc/mic/bus/scif_bus.h
@@ -0,0 +1,129 @@
+/*
+ * Intel MIC Platform Software Stack (MPSS)
+ *
+ * Copyright(c) 2014 Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * Intel Symmetric Communications Interface Bus driver.
+ */
+#ifndef _SCIF_BUS_H_
+#define _SCIF_BUS_H_
+/*
+ * Everything a scif driver needs to work with any particular scif
+ * hardware abstraction layer.
+ */
+#include linux/dma-mapping.h
+
+#include linux/mic_common.h
+#include ../common/mic_dev.h
+
+struct scif_hw_dev_id {
+   u32 device;
+   u32 vendor;
+};
+
+#define MIC_SCIF_DEV 1
+#define SCIF_DEV_ANY_ID 0x
+
+/**
+ * scif_hw_dev - representation of a hardware device abstracted for scif
+ * @hw_ops: the hardware ops supported by this device
+ * @id: the device type identification (used to match it with a driver)
+ * @mmio: MMIO memory window
+ * @aper: Aperture memory window
+ * @dev: underlying device
+ * @dnode - The destination node which this device will communicate with.
+ * @snode - The source node for this device.
+ * @dp - Self device page
+ * @rdp - Remote device page
+ * @dma_ch - Array of DMA channels
+ * @num_dma_ch - Number of DMA channels available
+ */
+struct scif_hw_dev {
+   struct scif_hw_ops *hw_ops;
+   struct scif_hw_dev_id id;
+   struct mic_mw *mmio;
+   struct mic_mw *aper;
+   struct device dev;
+   u8 dnode;
+   u8 snode;
+   void *dp;
+   void __iomem *rdp;
+   struct dma_chan **dma_ch;
+   int num_dma_ch;
+};
+
+/**
+ * scif_driver - operations for a scif I/O driver
+ * @driver: underlying device driver (populate name and owner).
+ * @id_table: the ids serviced by this driver.
+ * @probe: the function to call when a device is found.  Returns 0 or -errno.
+ * @remove: the

Re: [PATCH char-misc-next v4 03/13] misc: mic: SCIF Hardware Bus

2015-03-31 Thread Paul Bolle 
On Mon, 2015-03-30 at 18:36 -0700, Sudeep Dutt wrote:
> --- a/drivers/misc/mic/Kconfig
> +++ b/drivers/misc/mic/Kconfig

> +config SCIF_BUS
> + tristate "SCIF Bus Driver"
> + depends on 64BIT && PCI && X86 && X86_DEV_DMA_OPS

Can't this be simplified to just
depends on X86_64 && PCI

or is this bus expected to be used outside of 64 bit X86?

> + help
> +   This option is selected by any driver which registers a
> +   device or driver on the SCIF Bus, such as CONFIG_INTEL_MIC_HOST
> +   and CONFIG_INTEL_MIC_CARD.
> +
> +   If you are building a host/card kernel with an Intel MIC device
> +   then say M (recommended) or Y, else say N. If unsure say N.
> +
> +   More information about the Intel MIC family as well as the Linux
> +   OS and tools for MIC to use with this driver are available from
> +   .


Paul Bolle

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Re: [PATCH char-misc-next v4 03/13] misc: mic: SCIF Hardware Bus

2015-03-31 Thread Paul Bolle 
On Mon, 2015-03-30 at 18:36 -0700, Sudeep Dutt wrote:
 --- a/drivers/misc/mic/Kconfig
 +++ b/drivers/misc/mic/Kconfig

 +config SCIF_BUS
 + tristate SCIF Bus Driver
 + depends on 64BIT  PCI  X86  X86_DEV_DMA_OPS

Can't this be simplified to just
depends on X86_64  PCI

or is this bus expected to be used outside of 64 bit X86?

 + help
 +   This option is selected by any driver which registers a
 +   device or driver on the SCIF Bus, such as CONFIG_INTEL_MIC_HOST
 +   and CONFIG_INTEL_MIC_CARD.
 +
 +   If you are building a host/card kernel with an Intel MIC device
 +   then say M (recommended) or Y, else say N. If unsure say N.
 +
 +   More information about the Intel MIC family as well as the Linux
 +   OS and tools for MIC to use with this driver are available from
 +   http://software.intel.com/en-us/mic-developer.


Paul Bolle

--
To unsubscribe from this list: send the line unsubscribe linux-kernel in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

[PATCH char-misc-next v4 03/13] misc: mic: SCIF Hardware Bus

2015-03-30 Thread Sudeep Dutt 
The SCIF hardware bus abstracts the low level hardware driver details
like interrupts and mapping remote memory so that the same SCIF driver
can work without any changes with the MIC host or card driver as long
as the hardware bus operations are implemented. The SCIF hardware
device is registered by the host and card drivers on the SCIF hardware
bus resulting in probing the SCIF driver.

Reviewed-by: Nikhil Rao 
Reviewed-by: Ashutosh Dixit 
Signed-off-by: Sudeep Dutt 
---
 drivers/misc/mic/Kconfig|  17 
 drivers/misc/mic/Makefile   |   2 +-
 drivers/misc/mic/bus/Makefile   |   1 +
 drivers/misc/mic/bus/scif_bus.h | 129 
 drivers/misc/mic/bus/scif_bus.c | 210 
 5 files changed, 358 insertions(+), 1 deletion(-)
 create mode 100644 drivers/misc/mic/bus/scif_bus.h
 create mode 100644 drivers/misc/mic/bus/scif_bus.c

diff --git a/drivers/misc/mic/Kconfig b/drivers/misc/mic/Kconfig
index cc4eef0..afc9f53 100644
--- a/drivers/misc/mic/Kconfig
+++ b/drivers/misc/mic/Kconfig
@@ -15,6 +15,23 @@ config INTEL_MIC_BUS
  OS and tools for MIC to use with this driver are available from
  .
 
+comment "SCIF Bus Driver"
+
+config SCIF_BUS
+   tristate "SCIF Bus Driver"
+   depends on 64BIT && PCI && X86 && X86_DEV_DMA_OPS
+   help
+ This option is selected by any driver which registers a
+ device or driver on the SCIF Bus, such as CONFIG_INTEL_MIC_HOST
+ and CONFIG_INTEL_MIC_CARD.
+
+ If you are building a host/card kernel with an Intel MIC device
+ then say M (recommended) or Y, else say N. If unsure say N.
+
+ More information about the Intel MIC family as well as the Linux
+ OS and tools for MIC to use with this driver are available from
+ .
+
 comment "Intel MIC Host Driver"
 
 config INTEL_MIC_HOST
diff --git a/drivers/misc/mic/Makefile b/drivers/misc/mic/Makefile
index e9bf148..6bc6083 100644
--- a/drivers/misc/mic/Makefile
+++ b/drivers/misc/mic/Makefile
@@ -4,4 +4,4 @@
 #
 obj-$(CONFIG_INTEL_MIC_HOST) += host/
 obj-$(CONFIG_INTEL_MIC_CARD) += card/
-obj-$(CONFIG_INTEL_MIC_BUS) += bus/
+obj-y += bus/
diff --git a/drivers/misc/mic/bus/Makefile b/drivers/misc/mic/bus/Makefile
index d85c7f2..1ed37e2 100644
--- a/drivers/misc/mic/bus/Makefile
+++ b/drivers/misc/mic/bus/Makefile
@@ -3,3 +3,4 @@
 # Copyright(c) 2014, Intel Corporation.
 #
 obj-$(CONFIG_INTEL_MIC_BUS) += mic_bus.o
+obj-$(CONFIG_SCIF_BUS) += scif_bus.o
diff --git a/drivers/misc/mic/bus/scif_bus.h b/drivers/misc/mic/bus/scif_bus.h
new file mode 100644
index 000..335a228
--- /dev/null
+++ b/drivers/misc/mic/bus/scif_bus.h
@@ -0,0 +1,129 @@
+/*
+ * Intel MIC Platform Software Stack (MPSS)
+ *
+ * Copyright(c) 2014 Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * Intel Symmetric Communications Interface Bus driver.
+ */
+#ifndef _SCIF_BUS_H_
+#define _SCIF_BUS_H_
+/*
+ * Everything a scif driver needs to work with any particular scif
+ * hardware abstraction layer.
+ */
+#include 
+
+#include 
+#include "../common/mic_dev.h"
+
+struct scif_hw_dev_id {
+   u32 device;
+   u32 vendor;
+};
+
+#define MIC_SCIF_DEV 1
+#define SCIF_DEV_ANY_ID 0x
+
+/**
+ * scif_hw_dev - representation of a hardware device abstracted for scif
+ * @hw_ops: the hardware ops supported by this device
+ * @id: the device type identification (used to match it with a driver)
+ * @mmio: MMIO memory window
+ * @aper: Aperture memory window
+ * @dev: underlying device
+ * @dnode - The destination node which this device will communicate with.
+ * @snode - The source node for this device.
+ * @dp - Self device page
+ * @rdp - Remote device page
+ * @dma_ch - Array of DMA channels
+ * @num_dma_ch - Number of DMA channels available
+ */
+struct scif_hw_dev {
+   struct scif_hw_ops *hw_ops;
+   struct scif_hw_dev_id id;
+   struct mic_mw *mmio;
+   struct mic_mw *aper;
+   struct device dev;
+   u8 dnode;
+   u8 snode;
+   void *dp;
+   void __iomem *rdp;
+   struct dma_chan **dma_ch;
+   int num_dma_ch;
+};
+
+/**
+ * scif_driver - operations for a scif I/O driver
+ * @driver: underlying device driver (populate name and owner).
+ * @id_table: the ids serviced by this driver.
+ * @probe: the function to call when a device is found.  Returns 0 or -errno.
+ * @remove: the function to call when a device is removed.
+ */
+struct scif_driver {
+   struct

[PATCH char-misc-next v4 03/13] misc: mic: SCIF Hardware Bus

2015-03-30 Thread Sudeep Dutt 
The SCIF hardware bus abstracts the low level hardware driver details
like interrupts and mapping remote memory so that the same SCIF driver
can work without any changes with the MIC host or card driver as long
as the hardware bus operations are implemented. The SCIF hardware
device is registered by the host and card drivers on the SCIF hardware
bus resulting in probing the SCIF driver.

Reviewed-by: Nikhil Rao nikhil@intel.com
Reviewed-by: Ashutosh Dixit ashutosh.di...@intel.com
Signed-off-by: Sudeep Dutt sudeep.d...@intel.com
---
 drivers/misc/mic/Kconfig|  17 
 drivers/misc/mic/Makefile   |   2 +-
 drivers/misc/mic/bus/Makefile   |   1 +
 drivers/misc/mic/bus/scif_bus.h | 129 
 drivers/misc/mic/bus/scif_bus.c | 210 
 5 files changed, 358 insertions(+), 1 deletion(-)
 create mode 100644 drivers/misc/mic/bus/scif_bus.h
 create mode 100644 drivers/misc/mic/bus/scif_bus.c

diff --git a/drivers/misc/mic/Kconfig b/drivers/misc/mic/Kconfig
index cc4eef0..afc9f53 100644
--- a/drivers/misc/mic/Kconfig
+++ b/drivers/misc/mic/Kconfig
@@ -15,6 +15,23 @@ config INTEL_MIC_BUS
  OS and tools for MIC to use with this driver are available from
  http://software.intel.com/en-us/mic-developer.
 
+comment SCIF Bus Driver
+
+config SCIF_BUS
+   tristate SCIF Bus Driver
+   depends on 64BIT  PCI  X86  X86_DEV_DMA_OPS
+   help
+ This option is selected by any driver which registers a
+ device or driver on the SCIF Bus, such as CONFIG_INTEL_MIC_HOST
+ and CONFIG_INTEL_MIC_CARD.
+
+ If you are building a host/card kernel with an Intel MIC device
+ then say M (recommended) or Y, else say N. If unsure say N.
+
+ More information about the Intel MIC family as well as the Linux
+ OS and tools for MIC to use with this driver are available from
+ http://software.intel.com/en-us/mic-developer.
+
 comment Intel MIC Host Driver
 
 config INTEL_MIC_HOST
diff --git a/drivers/misc/mic/Makefile b/drivers/misc/mic/Makefile
index e9bf148..6bc6083 100644
--- a/drivers/misc/mic/Makefile
+++ b/drivers/misc/mic/Makefile
@@ -4,4 +4,4 @@
 #
 obj-$(CONFIG_INTEL_MIC_HOST) += host/
 obj-$(CONFIG_INTEL_MIC_CARD) += card/
-obj-$(CONFIG_INTEL_MIC_BUS) += bus/
+obj-y += bus/
diff --git a/drivers/misc/mic/bus/Makefile b/drivers/misc/mic/bus/Makefile
index d85c7f2..1ed37e2 100644
--- a/drivers/misc/mic/bus/Makefile
+++ b/drivers/misc/mic/bus/Makefile
@@ -3,3 +3,4 @@
 # Copyright(c) 2014, Intel Corporation.
 #
 obj-$(CONFIG_INTEL_MIC_BUS) += mic_bus.o
+obj-$(CONFIG_SCIF_BUS) += scif_bus.o
diff --git a/drivers/misc/mic/bus/scif_bus.h b/drivers/misc/mic/bus/scif_bus.h
new file mode 100644
index 000..335a228
--- /dev/null
+++ b/drivers/misc/mic/bus/scif_bus.h
@@ -0,0 +1,129 @@
+/*
+ * Intel MIC Platform Software Stack (MPSS)
+ *
+ * Copyright(c) 2014 Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * Intel Symmetric Communications Interface Bus driver.
+ */
+#ifndef _SCIF_BUS_H_
+#define _SCIF_BUS_H_
+/*
+ * Everything a scif driver needs to work with any particular scif
+ * hardware abstraction layer.
+ */
+#include linux/dma-mapping.h
+
+#include linux/mic_common.h
+#include ../common/mic_dev.h
+
+struct scif_hw_dev_id {
+   u32 device;
+   u32 vendor;
+};
+
+#define MIC_SCIF_DEV 1
+#define SCIF_DEV_ANY_ID 0x
+
+/**
+ * scif_hw_dev - representation of a hardware device abstracted for scif
+ * @hw_ops: the hardware ops supported by this device
+ * @id: the device type identification (used to match it with a driver)
+ * @mmio: MMIO memory window
+ * @aper: Aperture memory window
+ * @dev: underlying device
+ * @dnode - The destination node which this device will communicate with.
+ * @snode - The source node for this device.
+ * @dp - Self device page
+ * @rdp - Remote device page
+ * @dma_ch - Array of DMA channels
+ * @num_dma_ch - Number of DMA channels available
+ */
+struct scif_hw_dev {
+   struct scif_hw_ops *hw_ops;
+   struct scif_hw_dev_id id;
+   struct mic_mw *mmio;
+   struct mic_mw *aper;
+   struct device dev;
+   u8 dnode;
+   u8 snode;
+   void *dp;
+   void __iomem *rdp;
+   struct dma_chan **dma_ch;
+   int num_dma_ch;
+};
+
+/**
+ * scif_driver - operations for a scif I/O driver
+ * @driver: underlying device driver (populate name and owner).
+ * @id_table: the ids serviced by this driver.
+ * @probe: the function to call when a device is found.  Returns 0 or -errno.
+ * @remove: the