Re: [dpdk-dev] [PATCH] mk: Introduce NXP dpaa2 architecture based on armv8-a

[Jerin Jacob <jerin.jacob@caviumnetworks.com>]

On Mon, May 09, 2016 at 07:18:22PM +0530, Hemant Agrawal wrote:
> This patch introduces dpaa2 machine target to address difference
> in cpu parameter, number of core to 8 and no numa support
> w.r.t default armv8-a machine
> 
> Signed-off-by: Hemant Agrawal <hemant.agrawal@nxp.com>
> ---
>  config/defconfig_arm64-dpaa2-linuxapp-gcc | 44 +++++++++++++++++++++++
>  mk/machine/dpaa2/rte.vars.mk              | 60 +++++++++++++++++++++++++++++++
>  mk/rte.module.mk                          |  5 +++
>  3 files changed, 109 insertions(+)
>  create mode 100644 config/defconfig_arm64-dpaa2-linuxapp-gcc
>  create mode 100644 mk/machine/dpaa2/rte.vars.mk
> 
> diff --git a/config/defconfig_arm64-dpaa2-linuxapp-gcc b/config/defconfig_arm64-dpaa2-linuxapp-gcc
> new file mode 100644
> index 0000000..80bda26
> --- /dev/null
> +++ b/config/defconfig_arm64-dpaa2-linuxapp-gcc
> @@ -0,0 +1,44 @@
> +#   BSD LICENSE
> +#
> +#   Copyright(c) 2016 Freescale Semiconductor, Inc. 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 Freescale Semiconductor 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 "defconfig_arm64-armv8a-linuxapp-gcc"
> +
> +# NXP (Freescale) - Soc Architecture with WRIOP and QBMAN support
> +CONFIG_RTE_MACHINE="dpaa2"
> +CONFIG_RTE_ARCH_ARM_TUNE="cortex-a57+fp+simd"
> +
> +#
> +# Compile Environment Abstraction Layer
> +#
> +CONFIG_RTE_MAX_LCORE=8
> +CONFIG_RTE_MAX_NUMA_NODES=1
> +CONFIG_RTE_EAL_IGB_UIO=n

I think it makes sense to move this option to generic arm64 config
as upstream arm64 kernel does not have support for sysfs based PCI mmap
resource file,(/sys/bus/pci/devices/B:D:F/resource[_wc]X) need for
CONFIG_RTE_EAL_IGB_UIO to work) and use VFIO for all cases.

Any objections?

> +CONFIG_RTE_EAL_VFIO=y
> diff --git a/mk/machine/dpaa2/rte.vars.mk b/mk/machine/dpaa2/rte.vars.mk
> new file mode 100644
> index 0000000..8541633
> --- /dev/null
> +++ b/mk/machine/dpaa2/rte.vars.mk
> @@ -0,0 +1,60 @@
> +#   BSD LICENSE
> +#
> +#   Copyright(c) 2016 Freescale Semiconductor, Inc. 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 Freescale Semiconductor 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 =
> +MACHINE_CFLAGS += -march=armv8-a
> +
> +ifdef CONFIG_RTE_ARCH_ARM_TUNE
> +MACHINE_CFLAGS += -mcpu=$(CONFIG_RTE_ARCH_ARM_TUNE)
> +endif
> diff --git a/mk/rte.module.mk b/mk/rte.module.mk
> index 53ed4fe..09bf51b 100644
> --- a/mk/rte.module.mk
> +++ b/mk/rte.module.mk
> @@ -29,6 +29,11 @@
>  #   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
>  #   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
>  
> +#### Linaro toolchain usages arm64 instread of aarch64 in kernel
> +ifeq ($(ARCH), aarch64)
> +ARCH = arm64
> +endif
> +
>  ##### if sourced from kernel Kbuild system
>  ifneq ($(KERNELRELEASE),)
>  override EXTRA_CFLAGS = $(MODULE_CFLAGS) $(EXTRA_KERNEL_CFLAGS)
> -- 
> 1.9.1
>