raw/skeleton: introduce skeleton rawdev driver

Skeleton rawdevice driver, on the lines of eventdev skeleton, is for
showcasing the rawdev library. This driver implements some of the
operations of the library based on which a test module can be
developed.

Design of skeleton involves a virtual device which is plugged into
VDEV bus on initialization.

Also, enable compilation of rawdev skeleton driver.

Signed-off-by: Shreyansh Jain <shreyansh.jain@nxp.com>

MAINTAINERS

@@ -319,6 +319,7 @@ Raw device API - EXPERIMENTAL
 M: Shreyansh Jain <shreyansh.jain@nxp.com>
 M: Hemant Agrawal <hemant.agrawal@nxp.com>
 F: lib/librte_rawdev/
+F: drivers/raw/skeleton_rawdev/
 
 
 Bus Drivers

config/common_base

@@ -611,6 +611,7 @@ CONFIG_RTE_LIBRTE_PMD_DPAA2_EVENTDEV=n
 #
 CONFIG_RTE_LIBRTE_RAWDEV=y
 CONFIG_RTE_RAWDEV_MAX_DEVS=10
+CONFIG_RTE_LIBRTE_PMD_SKELETON_RAWDEV=y
 
 #
 # Compile librte_ring

drivers/Makefile

@@ -14,5 +14,7 @@ DIRS-$(CONFIG_RTE_LIBRTE_CRYPTODEV) += crypto
 DEPDIRS-crypto := bus mempool
 DIRS-$(CONFIG_RTE_LIBRTE_EVENTDEV) += event
 DEPDIRS-event := bus mempool net
+DIRS-$(CONFIG_RTE_LIBRTE_RAWDEV) += raw
+DEPDIRS-raw := bus mempool net event
 
 include $(RTE_SDK)/mk/rte.subdir.mk

drivers/raw/Makefile

@@ -0,0 +1,9 @@
+# SPDX-License-Identifier: BSD-3-Clause
+# Copyright 2017 NXP
+
+include $(RTE_SDK)/mk/rte.vars.mk
+
+# DIRS-$(<configuration>) += <directory>
+DIRS-$(CONFIG_RTE_LIBRTE_PMD_SKELETON_RAWDEV) += skeleton_rawdev
+
+include $(RTE_SDK)/mk/rte.subdir.mk

drivers/raw/skeleton_rawdev/Makefile

@@ -0,0 +1,28 @@
+# SPDX-License-Identifier: BSD-3-Clause
+# Copyright 2017 NXP
+
+include $(RTE_SDK)/mk/rte.vars.mk
+
+#
+# library name
+#
+LIB = librte_pmd_skeleton_rawdev.a
+
+CFLAGS += -DALLOW_EXPERIMENTAL_API
+CFLAGS += -O3
+CFLAGS += $(WERROR_FLAGS)
+LDLIBS += -lrte_eal
+LDLIBS += -lrte_rawdev
+LDLIBS += -lrte_bus_vdev
+LDLIBS += -lrte_kvargs
+
+EXPORT_MAP := rte_pmd_skeleton_rawdev_version.map
+
+LIBABIVER := 1
+
+#
+# all source are stored in SRCS-y
+#
+SRCS-$(CONFIG_RTE_LIBRTE_PMD_SKELETON_RAWDEV) += skeleton_rawdev.c
+
+include $(RTE_SDK)/mk/rte.lib.mk

drivers/raw/skeleton_rawdev/rte_pmd_skeleton_rawdev_version.map

@@ -0,0 +1,4 @@
+DPDK_18.02 {
+
+	local: *;
+};