staging: fsl-dpaa2/eth: Add APIs for DPNI objects

Add the command build/parse APIs for operating on DPNI objects through
the DPAA2 Management Complex.
Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/Kconfig

@@ -94,6 +94,8 @@ source "drivers/staging/fbtft/Kconfig"
 
 source "drivers/staging/fsl-mc/Kconfig"
 
+source "drivers/staging/fsl-dpaa2/Kconfig"
+
 source "drivers/staging/wilc1000/Kconfig"
 
 source "drivers/staging/most/Kconfig"

drivers/staging/Makefile

@@ -36,6 +36,7 @@ obj-$(CONFIG_UNISYSSPAR)	+= unisys/
 obj-$(CONFIG_COMMON_CLK_XLNX_CLKWZRD)	+= clocking-wizard/
 obj-$(CONFIG_FB_TFT)		+= fbtft/
 obj-$(CONFIG_FSL_MC_BUS)	+= fsl-mc/
+obj-$(CONFIG_FSL_DPAA2)		+= fsl-dpaa2/
 obj-$(CONFIG_WILC1000)		+= wilc1000/
 obj-$(CONFIG_MOST)		+= most/
 obj-$(CONFIG_KS7010)		+= ks7010/

drivers/staging/fsl-dpaa2/Kconfig

+#
+# Freescale DataPath Acceleration Architecture Gen2 (DPAA2) drivers
+#
+
+config FSL_DPAA2
+	bool "Freescale DPAA2 devices"
+	depends on FSL_MC_BUS
+	---help---
+	  Build drivers for Freescale DataPath Acceleration
+	  Architecture (DPAA2) family of SoCs.
+
+config FSL_DPAA2_ETH
+	tristate "Freescale DPAA2 Ethernet"
+	depends on FSL_DPAA2 && FSL_MC_DPIO
+	---help---
+	  Ethernet driver for Freescale DPAA2 SoCs, using the
+	  Freescale MC bus driver

drivers/staging/fsl-dpaa2/Makefile

+#
+# Freescale DataPath Acceleration Architecture Gen2 (DPAA2) drivers
+#
+
+obj-$(CONFIG_FSL_DPAA2_ETH)	+= ethernet/

drivers/staging/fsl-dpaa2/ethernet/Makefile

+#
+# Makefile for the Freescale DPAA2 Ethernet controller
+#
+
+obj-$(CONFIG_FSL_DPAA2_ETH) += fsl-dpaa2-eth.o
+
+fsl-dpaa2-eth-objs    := dpni.o

drivers/staging/fsl-dpaa2/ethernet/dpkg.h

+/* Copyright 2013-2015 Freescale Semiconductor Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of the above-listed copyright holders nor the
+ * names of any contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+#ifndef __FSL_DPKG_H_
+#define __FSL_DPKG_H_
+
+#include <linux/types.h>
+#include "net.h"
+
+/* Data Path Key Generator API
+ * Contains initialization APIs and runtime APIs for the Key Generator
+ */
+
+/** Key Generator properties */
+
+/**
+ * Number of masks per key extraction
+ */
+#define DPKG_NUM_OF_MASKS		4
+/**
+ * Number of extractions per key profile
+ */
+#define DPKG_MAX_NUM_OF_EXTRACTS	10
+
+/**
+ * enum dpkg_extract_from_hdr_type - Selecting extraction by header types
+ * @DPKG_FROM_HDR: Extract selected bytes from header, by offset
+ * @DPKG_FROM_FIELD: Extract selected bytes from header, by offset from field
+ * @DPKG_FULL_FIELD: Extract a full field
+ */
+enum dpkg_extract_from_hdr_type {
+	DPKG_FROM_HDR = 0,
+	DPKG_FROM_FIELD = 1,
+	DPKG_FULL_FIELD = 2
+};
+
+/**
+ * enum dpkg_extract_type - Enumeration for selecting extraction type
+ * @DPKG_EXTRACT_FROM_HDR: Extract from the header
+ * @DPKG_EXTRACT_FROM_DATA: Extract from data not in specific header
+ * @DPKG_EXTRACT_FROM_PARSE: Extract from parser-result;
+ *	e.g. can be used to extract header existence;
+ *	please refer to 'Parse Result definition' section in the parser BG
+ */
+enum dpkg_extract_type {
+	DPKG_EXTRACT_FROM_HDR = 0,
+	DPKG_EXTRACT_FROM_DATA = 1,
+	DPKG_EXTRACT_FROM_PARSE = 3
+};
+
+/**
+ * struct dpkg_mask - A structure for defining a single extraction mask
+ * @mask: Byte mask for the extracted content
+ * @offset: Offset within the extracted content
+ */
+struct dpkg_mask {
+	u8 mask;
+	u8 offset;
+};
+
+/**
+ * struct dpkg_extract - A structure for defining a single extraction
+ * @type: Determines how the union below is interpreted:
+ *		DPKG_EXTRACT_FROM_HDR: selects 'from_hdr';
+ *		DPKG_EXTRACT_FROM_DATA: selects 'from_data';
+ *		DPKG_EXTRACT_FROM_PARSE: selects 'from_parse'
+ * @extract: Selects extraction method
+ * @num_of_byte_masks: Defines the number of valid entries in the array below;
+ *		This is	also the number of bytes to be used as masks
+ * @masks: Masks parameters
+ */
+struct dpkg_extract {
+	enum dpkg_extract_type type;
+	/**
+	 * union extract - Selects extraction method
+	 * @from_hdr - Used when 'type = DPKG_EXTRACT_FROM_HDR'
+	 * @from_data - Used when 'type = DPKG_EXTRACT_FROM_DATA'
+	 * @from_parse - Used when 'type = DPKG_EXTRACT_FROM_PARSE'
+	 */
+	union {
+		/**
+		 * struct from_hdr - Used when 'type = DPKG_EXTRACT_FROM_HDR'
+		 * @prot: Any of the supported headers
+		 * @type: Defines the type of header extraction:
+		 *	DPKG_FROM_HDR: use size & offset below;
+		 *	DPKG_FROM_FIELD: use field, size and offset below;
+		 *	DPKG_FULL_FIELD: use field below
+		 * @field: One of the supported fields (NH_FLD_)
+		 *
+		 * @size: Size in bytes
+		 * @offset: Byte offset
+		 * @hdr_index: Clear for cases not listed below;
+		 *	Used for protocols that may have more than a single
+		 *	header, 0 indicates an outer header;
+		 *	Supported protocols (possible values):
+		 *	NET_PROT_VLAN (0, HDR_INDEX_LAST);
+		 *	NET_PROT_MPLS (0, 1, HDR_INDEX_LAST);
+		 *	NET_PROT_IP(0, HDR_INDEX_LAST);
+		 *	NET_PROT_IPv4(0, HDR_INDEX_LAST);
+		 *	NET_PROT_IPv6(0, HDR_INDEX_LAST);
+		 */
+
+		struct {
+			enum net_prot			prot;
+			enum dpkg_extract_from_hdr_type type;
+			u32			field;
+			u8			size;
+			u8			offset;
+			u8			hdr_index;
+		} from_hdr;
+		/**
+		 * struct from_data - Used when 'type = DPKG_EXTRACT_FROM_DATA'
+		 * @size: Size in bytes
+		 * @offset: Byte offset
+		 */
+		struct {
+			u8 size;
+			u8 offset;
+		} from_data;
+
+		/**
+		 * struct from_parse - Used when
+		 *		       'type = DPKG_EXTRACT_FROM_PARSE'
+		 * @size: Size in bytes
+		 * @offset: Byte offset
+		 */
+		struct {
+			u8 size;
+			u8 offset;
+		} from_parse;
+	} extract;
+
+	u8		num_of_byte_masks;
+	struct dpkg_mask	masks[DPKG_NUM_OF_MASKS];
+};
+
+/**
+ * struct dpkg_profile_cfg - A structure for defining a full Key Generation
+ *				profile (rule)
+ * @num_extracts: Defines the number of valid entries in the array below
+ * @extracts: Array of required extractions
+ */
+struct dpkg_profile_cfg {
+	u8 num_extracts;
+	struct dpkg_extract extracts[DPKG_MAX_NUM_OF_EXTRACTS];
+};
+
+#endif /* __FSL_DPKG_H_ */