mk: introduce ARMv7 architecture

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>
2015-11-03 00:47:27 +01:00 · 2015-11-03 00:47:27 +01:00 · 02a8686263
parent 79fa5c2a99
commit 02a8686263
5 changed files with 191 additions and 0 deletions
--- a/4
+++ b/4
@ -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/
--- a/config/defconfig_arm-armv7a-linuxapp-gcc
+++ b/config/defconfig_arm-armv7a-linuxapp-gcc
@ -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
--- a/doc/guides/rel_notes/release_2_2.rst
+++ b/doc/guides/rel_notes/release_2_2.rst
@ -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
--- a/mk/arch/arm/rte.vars.mk
+++ b/mk/arch/arm/rte.vars.mk
@ -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
--- a/mk/machine/armv7-a/rte.vars.mk
+++ b/mk/machine/armv7-a/rte.vars.mk
@ -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