Re: [dpdk-dev] [PATCH 2/3] config: add thunderx2 machine config

["Gavin Hu (Arm Technology China)" <Gavin.Hu@arm.com>]

> -----Original Message-----
> From: Jerin Jacob Kollanukkaran <jerinj@marvell.com>
> Sent: Sunday, January 6, 2019 9:20 PM
> To: thomas@monjalon.net
> Cc: dev@dpdk.org; Gavin Hu (Arm Technology China) <Gavin.Hu@arm.com>;
> jerinj@marvell.com
> Subject: [dpdk-dev] [PATCH 2/3] config: add thunderx2 machine config
> 
> Optimized configuration for Marvell thunderx2 SoC.
> 
> Product details are here:
> 
> https://www.marvell.com/server-processors/thunderx2-arm-processors/
> 
> Signed-off-by: Jerin Jacob <jerinj@marvell.com>
> ---
>  config/defconfig_arm64-thunderx2-linuxapp-gcc | 11 ++++++
>  mk/machine/thunderx2/rte.vars.mk              | 34 +++++++++++++++++++
>  2 files changed, 45 insertions(+)
>  create mode 100644 config/defconfig_arm64-thunderx2-linuxapp-gcc
>  create mode 100644 mk/machine/thunderx2/rte.vars.mk
> 
> diff --git a/config/defconfig_arm64-thunderx2-linuxapp-gcc
> b/config/defconfig_arm64-thunderx2-linuxapp-gcc
> new file mode 100644
> index 000000000..27db58e50
> --- /dev/null
> +++ b/config/defconfig_arm64-thunderx2-linuxapp-gcc
> @@ -0,0 +1,11 @@
> +# SPDX-License-Identifier: BSD-3-Clause
> +# Copyright(c) 2018 Marvell International Ltd
> +#
> +
> +#include "defconfig_arm64-armv8a-linuxapp-gcc"
> +
> +CONFIG_RTE_MACHINE="thunderx2"
> +
> +CONFIG_RTE_CACHE_LINE_SIZE=64

ThunderX is 128, ThunderX2 downsized the cache line? 

> +CONFIG_RTE_MAX_NUMA_NODES=2
> +CONFIG_RTE_MAX_LCORE=256
> diff --git a/mk/machine/thunderx2/rte.vars.mk
> b/mk/machine/thunderx2/rte.vars.mk
> new file mode 100644
> index 000000000..b80dc8680
> --- /dev/null
> +++ b/mk/machine/thunderx2/rte.vars.mk
> @@ -0,0 +1,34 @@
> +# SPDX-License-Identifier: BSD-3-Clause
> +# Copyright(c) 2018 Marvell International Ltd
> +#
> +
> +#
> +# 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 =
> +
> +include $(RTE_SDK)/mk/rte.helper.mk
> +
> +MACHINE_CFLAGS += $(call rte_cc_has_argument, -march=armv8.1-
> a+crc+crypto)
> +MACHINE_CFLAGS += $(call rte_cc_has_argument, -mcpu=thunderx2t99)
> --
> 2.20.1