[dpdk-stable] patch 'config: add Graviton2(arm64) defconfig' has been queued to stable release 19.11.6

[luca.boccassi at gmail.com]

Hi,

FYI, your patch has been queued to stable release 19.11.6

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 10/30/20. So please
shout if anyone has objections.

Also note that after the patch there's a diff of the upstream commit vs the
patch applied to the branch. This will indicate if there was any rebasing
needed to apply to the stable branch. If there were code changes for rebasing
(ie: not only metadata diffs), please double check that the rebase was
correctly done.

Thanks.

Luca Boccassi

---
>From b22cfbdd0ccaed9ff6f7db599765b267802680d5 Mon Sep 17 00:00:00 2001
From: Vimal Chungath <vcchunga at amazon.com>
Date: Wed, 7 Oct 2020 15:59:14 -0700
Subject: [PATCH] config: add Graviton2(arm64) defconfig

Add make configuration for Graviton2 platform with
64-bit Arm Neoverse N1 cores.

Sample build steps:
make config T=arm64-graviton2-linux-gcc O=arm64-build
make -C arm64-build
OR
make config T=graviton2 O=arm64-build
make -C arm64-build

For more information about Graviton2 platform, refer to:
https://aws.amazon.com/ec2/graviton/

Signed-off-by: Vimal Chungath <vcchunga at amazon.com>
---
 config/defconfig_arm64-graviton2-linux-gcc    |  1 +
 config/defconfig_arm64-graviton2-linuxapp-gcc | 13 +++++++
 config/defconfig_graviton2                    |  1 +
 mk/machine/graviton2/rte.vars.mk              | 34 +++++++++++++++++++
 4 files changed, 49 insertions(+)
 create mode 120000 config/defconfig_arm64-graviton2-linux-gcc
 create mode 100644 config/defconfig_arm64-graviton2-linuxapp-gcc
 create mode 120000 config/defconfig_graviton2
 create mode 100644 mk/machine/graviton2/rte.vars.mk

diff --git a/config/defconfig_arm64-graviton2-linux-gcc b/config/defconfig_arm64-graviton2-linux-gcc
new file mode 120000
index 0000000000..80ac94d54d
--- /dev/null
+++ b/config/defconfig_arm64-graviton2-linux-gcc
@@ -0,0 +1 @@
+defconfig_arm64-graviton2-linuxapp-gcc
\ No newline at end of file
diff --git a/config/defconfig_arm64-graviton2-linuxapp-gcc b/config/defconfig_arm64-graviton2-linuxapp-gcc
new file mode 100644
index 0000000000..e99fef3073
--- /dev/null
+++ b/config/defconfig_arm64-graviton2-linuxapp-gcc
@@ -0,0 +1,13 @@
+# SPDX-License-Identifier: BSD-3-Clause
+# Copyright(c) Amazon.com, Inc or its affiliates
+#
+
+#include "defconfig_arm64-armv8a-linux-gcc"
+
+CONFIG_RTE_MACHINE="graviton2"
+CONFIG_RTE_MAX_LCORE=64
+CONFIG_RTE_CACHE_LINE_SIZE=64
+CONFIG_RTE_MAX_MEM_MB=1048576
+CONFIG_RTE_MAX_NUMA_NODES=1
+CONFIG_RTE_EAL_NUMA_AWARE_HUGEPAGES=n
+CONFIG_RTE_LIBRTE_VHOST_NUMA=n
diff --git a/config/defconfig_graviton2 b/config/defconfig_graviton2
new file mode 120000
index 0000000000..80ac94d54d
--- /dev/null
+++ b/config/defconfig_graviton2
@@ -0,0 +1 @@
+defconfig_arm64-graviton2-linuxapp-gcc
\ No newline at end of file
diff --git a/mk/machine/graviton2/rte.vars.mk b/mk/machine/graviton2/rte.vars.mk
new file mode 100644
index 0000000000..1796c9cf8f
--- /dev/null
+++ b/mk/machine/graviton2/rte.vars.mk
@@ -0,0 +1,34 @@
+# SPDX-License-Identifier: BSD-3-Clause
+# Copyright(c) Amazon.com, Inc or its affiliates
+#
+
+#
+# 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=armv8.2-a+crypto)
+MACHINE_CFLAGS += $(call rte_cc_has_argument, -mcpu=neoverse-n1)
-- 
2.20.1