common/mvep: add common code for Marvell drivers

Add MVEP (Marvell Embedded Processors) to drivers/common which
will keep code reused by current and future MRVL PMDs.
Right now we have only common DMA memory initialization routines there.

Signed-off-by: Liron Himi <lironh@marvell.com>
Signed-off-by: Tomasz Duszynski <tdu@semihalf.com>
Reviewed-by: Natalie Samsonov <nsamsono@marvell.com>

MAINTAINERS

@@ -581,6 +581,7 @@ Marvell mvpp2
 M: Tomasz Duszynski <tdu@semihalf.com>
 M: Dmitri Epshtein <dima@marvell.com>
 M: Natalie Samsonov <nsamsono@marvell.com>
+F: drivers/common/mvep/
 F: drivers/net/mvpp2/
 F: doc/guides/nics/mvpp2.rst
 F: doc/guides/nics/features/mvpp2.ini

drivers/common/Makefile

@@ -8,4 +8,8 @@ ifeq ($(CONFIG_RTE_LIBRTE_PMD_OCTEONTX_SSOVF)$(CONFIG_RTE_LIBRTE_OCTEONTX_MEMPOO
 DIRS-y += octeontx
 endif
 
+ifeq ($(CONFIG_RTE_LIBRTE_MVPP2_PMD),y)
+DIRS-y += mvep
+endif
+
 include $(RTE_SDK)/mk/rte.subdir.mk

drivers/common/meson.build

@@ -2,6 +2,6 @@
 # Copyright(c) 2018 Cavium, Inc
 
 std_deps = ['eal']
-drivers = ['octeontx', 'qat']
+drivers = ['mvep', 'octeontx', 'qat']
 config_flag_fmt = 'RTE_LIBRTE_@0@_COMMON'
 driver_name_fmt = 'rte_common_@0@'

drivers/common/mvep/Makefile

@@ -0,0 +1,38 @@
+# SPDX-License-Identifier: BSD-3-Clause
+# Copyright(c) 2018 Marvell International Ltd.
+#
+
+include $(RTE_SDK)/mk/rte.vars.mk
+
+ifneq ($(MAKECMDGOALS),clean)
+ifneq ($(MAKECMDGOALS),config)
+ifeq ($(LIBMUSDK_PATH),)
+$(error "Please define LIBMUSDK_PATH environment variable")
+endif
+endif
+endif
+
+# library name
+LIB = librte_common_mvep.a
+
+# library version
+LIBABIVER := 1
+
+# versioning export map
+EXPORT_MAP := rte_common_mvep_version.map
+
+# external library dependencies
+CFLAGS += -I$($RTE_SDK)/drivers/common/mvep
+CFLAGS += -I$(LIBMUSDK_PATH)/include
+CFLAGS += -DMVCONF_TYPES_PUBLIC
+CFLAGS += -DMVCONF_DMA_PHYS_ADDR_T_PUBLIC
+CFLAGS += $(WERROR_FLAGS)
+CFLAGS += -O3
+LDLIBS += -L$(LIBMUSDK_PATH)/lib
+LDLIBS += -lmusdk
+LDLIBS += -lrte_eal -lrte_kvargs
+
+# library source files
+SRCS-y += mvep_common.c
+
+include $(RTE_SDK)/mk/rte.lib.mk

drivers/common/mvep/meson.build

@@ -0,0 +1,19 @@
+# SPDX-License-Identifier: BSD-3-Clause
+# Copyright(c) 2018 Marvell International Ltd.
+# Copyright(c) 2018 Semihalf.
+# All rights reserved.
+#
+path = get_option('lib_musdk_dir')
+lib_dir = path + '/lib'
+inc_dir = path + '/include'
+
+lib = cc.find_library('libmusdk', dirs: [lib_dir], required: false)
+if not lib.found()
+	build = false
+else
+	ext_deps += lib
+	includes += include_directories(inc_dir)
+	cflags += ['-DMVCONF_TYPES_PUBLIC', '-DMVCONF_DMA_PHYS_ADDR_T_PUBLIC']
+endif
+
+sources = files('mvep_common.c')

drivers/common/mvep/mvep_common.c

@@ -0,0 +1,45 @@
+/*  SPDX-License-Identifier: BSD-3-Clause
+ *  Copyright(c) 2018 Marvell International Ltd.
+ */
+
+#include <rte_common.h>
+
+#include <env/mv_autogen_comp_flags.h>
+#include <env/mv_sys_dma.h>
+
+#include "rte_mvep_common.h"
+
+/* Memory size (in bytes) for MUSDK dma buffers */
+#define MRVL_MUSDK_DMA_MEMSIZE (40 * 1024 * 1024)
+
+struct mvep {
+	uint32_t ref_count;
+};
+
+static struct mvep mvep;
+
+int rte_mvep_init(enum mvep_module_type module __rte_unused,
+		  struct rte_kvargs *kvlist __rte_unused)
+{
+	int ret;
+
+	if (!mvep.ref_count) {
+		ret = mv_sys_dma_mem_init(MRVL_MUSDK_DMA_MEMSIZE);
+		if (ret)
+			return ret;
+	}
+
+	mvep.ref_count++;
+
+	return 0;
+}
+
+int rte_mvep_deinit(enum mvep_module_type module __rte_unused)
+{
+	mvep.ref_count--;
+
+	if (!mvep.ref_count)
+		mv_sys_dma_mem_destroy();
+
+	return 0;
+}

drivers/common/mvep/rte_common_mvep_version.map

@@ -0,0 +1,6 @@
+DPDK_18.11 {
+	global:
+
+	rte_mvep_init;
+	rte_mvep_deinit;
+};

drivers/common/mvep/rte_mvep_common.h

@@ -0,0 +1,20 @@
+/*  SPDX-License-Identifier: BSD-3-Clause
+ *  Copyright(c) 2018 Marvell International Ltd.
+ */
+
+#ifndef __RTE_MVEP_COMMON_H__
+#define __RTE_MVEP_COMMON_H__
+
+#include <rte_kvargs.h>
+
+enum mvep_module_type {
+	MVEP_MOD_T_NONE = 0,
+	MVEP_MOD_T_PP2,
+	MVEP_MOD_T_SAM,
+	MVEP_MOD_T_LAST
+};
+
+int rte_mvep_init(enum mvep_module_type module, struct rte_kvargs *kvlist);
+int rte_mvep_deinit(enum mvep_module_type module);
+
+#endif /* __RTE_MVEP_COMMON_H__ */

mk/rte.app.mk

@@ -98,6 +98,10 @@ ifeq ($(CONFIG_RTE_LIBRTE_PMD_OCTEONTX_SSOVF)$(CONFIG_RTE_LIBRTE_OCTEONTX_MEMPOO
 _LDLIBS-y += -lrte_common_octeontx
 endif
 
+ifeq ($(CONFIG_RTE_LIBRTE_MVPP2_PMD),y)
+_LDLIBS-y += -lrte_common_mvep -L$(LIBMUSDK_PATH)/lib -lmusdk
+endif
+
 _LDLIBS-$(CONFIG_RTE_LIBRTE_PCI_BUS)        += -lrte_bus_pci
 _LDLIBS-$(CONFIG_RTE_LIBRTE_VDEV_BUS)       += -lrte_bus_vdev
 _LDLIBS-$(CONFIG_RTE_LIBRTE_DPAA_BUS)       += -lrte_bus_dpaa