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mk: introduce ARMv7 architecture

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Make DPDK run on ARMv7-A architecture. This patch assumes
ARM Cortex-A9. However, it is known to be working on Cortex-A7
and Cortex-A15.

Signed-off-by: Vlastimil Kosar <kosar@rehivetech.com>
Signed-off-by: Jan Viktorin <viktorin@rehivetech.com>
Acked-by: David Marchand <david.marchand@6wind.com>
This commit is contained in:
Vlastimil Kosar 2015-11-03 00:47:27 +01:00 committed by Thomas Monjalon
parent 79fa5c2a99
commit 02a8686263
5 changed files with 191 additions and 0 deletions
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4
MAINTAINERS
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@ -115,6 +115,10 @@ F: app/test/test_mp_secondary.c
F: examples/multi_process/
F: doc/guides/sample_app_ug/multi_process.rst
ARM v7
M: Jan Viktorin <viktorin@rehivetech.com>
F: lib/librte_eal/common/include/arch/arm/
EZchip TILE-Gx
M: Zhigang Lu <zlu@ezchip.com>
F: lib/librte_eal/common/include/arch/tile/

76
config/defconfig_arm-armv7a-linuxapp-gcc Normal file
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@ -0,0 +1,76 @@
# BSD LICENSE
#
# Copyright (C) 2015 RehiveTech. All right reserved.
#
# 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 RehiveTech nor the names of its
# contributors may be used to endorse or promote products derived
# from this software without specific prior written permission.
#
# 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
# OWNER 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.
#include "common_linuxapp"
CONFIG_RTE_MACHINE="armv7-a"
CONFIG_RTE_ARCH="arm"
CONFIG_RTE_ARCH_ARM=y
CONFIG_RTE_ARCH_ARMv7=y
CONFIG_RTE_ARCH_ARM_TUNE="cortex-a9"
CONFIG_RTE_ARCH_ARM_NEON=y
CONFIG_RTE_FORCE_INTRINSICS=y
CONFIG_RTE_TOOLCHAIN="gcc"
CONFIG_RTE_TOOLCHAIN_GCC=y
# ARM doesn't have support for vmware TSC map
CONFIG_RTE_LIBRTE_EAL_VMWARE_TSC_MAP_SUPPORT=n
# KNI is not supported on 32-bit
CONFIG_RTE_LIBRTE_KNI=n
# PCI is usually not used on ARM
CONFIG_RTE_EAL_IGB_UIO=n
# fails to compile on ARM
CONFIG_RTE_LIBRTE_ACL=n
CONFIG_RTE_LIBRTE_LPM=n
CONFIG_RTE_LIBRTE_TABLE=n
CONFIG_RTE_LIBRTE_PIPELINE=n
# cannot use those on ARM
CONFIG_RTE_KNI_KMOD=n
CONFIG_RTE_LIBRTE_EM_PMD=n
CONFIG_RTE_LIBRTE_IGB_PMD=n
CONFIG_RTE_LIBRTE_CXGBE_PMD=n
CONFIG_RTE_LIBRTE_E1000_PMD=n
CONFIG_RTE_LIBRTE_ENIC_PMD=n
CONFIG_RTE_LIBRTE_FM10K_PMD=n
CONFIG_RTE_LIBRTE_I40E_PMD=n
CONFIG_RTE_LIBRTE_IXGBE_PMD=n
CONFIG_RTE_LIBRTE_MLX4_PMD=n
CONFIG_RTE_LIBRTE_MPIPE_PMD=n
CONFIG_RTE_LIBRTE_VIRTIO_PMD=n
CONFIG_RTE_LIBRTE_VMXNET3_PMD=n
CONFIG_RTE_LIBRTE_PMD_XENVIRT=n
CONFIG_RTE_LIBRTE_PMD_BNX2X=n

5
doc/guides/rel_notes/release_2_2.rst
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@ -4,6 +4,11 @@ DPDK Release 2.2
New Features
------------
* **Introduce ARMv7 architecture**
It is now possible to build DPDK for the ARMv7 platform and test with
virtual PMD drivers.
* **Enabled freeing of ring.**
New function rte_ring_free() allows the user to free a ring

39
mk/arch/arm/rte.vars.mk Normal file
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@ -0,0 +1,39 @@
# BSD LICENSE
#
# Copyright (C) 2015 RehiveTech. All rights reserved.
#
# 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 RehiveTech nor the names of its
# contributors may be used to endorse or promote products derived
# from this software without specific prior written permission.
#
# 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
# OWNER 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.
ARCH ?= arm
CROSS ?=
CPU_CFLAGS ?= -marm -DRTE_CACHE_LINE_SIZE=64 -munaligned-access
CPU_LDFLAGS ?=
CPU_ASFLAGS ?= -felf
export ARCH CROSS CPU_CFLAGS CPU_LDFLAGS CPU_ASFLAGS

67
mk/machine/armv7-a/rte.vars.mk Normal file
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@ -0,0 +1,67 @@
# BSD LICENSE
#
# Copyright (C) 2015 RehiveTech. All rights reserved.
#
# 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 RehiveTech nor the names of its
# contributors may be used to endorse or promote products derived
# from this software without specific prior written permission.
#
# 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
# OWNER 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.
#
# machine:
#
# - can define ARCH variable (overridden by cmdline value)
# - can define CROSS variable (overridden by cmdline value)
# - define MACHINE_CFLAGS variable (overridden by cmdline value)
# - define MACHINE_LDFLAGS variable (overridden by cmdline value)
# - define MACHINE_ASFLAGS variable (overridden by cmdline value)
# - can define CPU_CFLAGS variable (overridden by cmdline value) that
# overrides the one defined in arch.
# - can define CPU_LDFLAGS variable (overridden by cmdline value) that
# overrides the one defined in arch.
# - can define CPU_ASFLAGS variable (overridden by cmdline value) that
# overrides the one defined in arch.
# - may override any previously defined variable
#
# ARCH =
# CROSS =
# MACHINE_CFLAGS =
# MACHINE_LDFLAGS =
# MACHINE_ASFLAGS =
# CPU_CFLAGS =
# CPU_LDFLAGS =
# CPU_ASFLAGS =
CPU_CFLAGS += -mfloat-abi=softfp
MACHINE_CFLAGS += -march=armv7-a
ifdef CONFIG_RTE_ARCH_ARM_TUNE
MACHINE_CFLAGS += -mtune=$(CONFIG_RTE_ARCH_ARM_TUNE)
endif
ifeq ($(CONFIG_RTE_ARCH_ARM_NEON),y)
MACHINE_CFLAGS += -mfpu=neon
endif