[1/1] package/rdma-core: new package

diff --git a/DEVELOPERS b/DEVELOPERS
index 942bb8fe9c..8fea5e31aa 100644
--- a/DEVELOPERS
+++ b/DEVELOPERS
@@ -1615,6 +1615,7 @@  F:	package/ptm2human/
 F:	package/python-distro/
 F:	package/python-gnupg/
 F:	package/python-pyalsa/
+F:	package/rdma-core/
 F:	package/riscv-isa-sim/
 F:	package/zynaddsubfx/
 F:	support/testing/tests/package/sample_python_distro.py
diff --git a/package/Config.in b/package/Config.in
index 0d5d763180..f21f1fbc66 100644
--- a/package/Config.in
+++ b/package/Config.in
@@ -555,6 +555,7 @@  endmenu
 	source "package/pulseview/Config.in"
 	source "package/qoriq-cadence-dp-firmware/Config.in"
 	source "package/raspi-gpio/Config.in"
+	source "package/rdma-core/Config.in"
 	source "package/read-edid/Config.in"
 	source "package/rng-tools/Config.in"
 	source "package/rockchip-mali/Config.in"
diff --git a/package/rdma-core/Config.in b/package/rdma-core/Config.in
new file mode 100644
index 0000000000..8fc2e4b8a1
--- /dev/null
+++ b/package/rdma-core/Config.in
@@ -0,0 +1,28 @@ 
+config BR2_PACKAGE_RDMA_CORE
+	bool "rdma-core"
+	depends on BR2_USE_MMU # fork() used in rstream example
+	depends on BR2_TOOLCHAIN_HAS_SYNC_4
+	depends on !BR2_STATIC_LIBS # dlopen()
+	depends on BR2_TOOLCHAIN_HAS_THREADS
+	select BR2_PACKAGE_LIBNL
+	help
+	  This is the userspace components for the Linux Kernel's
+	  drivers/infiniband subsystem.
+
+	  https://github.com/linux-rdma/rdma-core
+
+if BR2_PACKAGE_RDMA_CORE
+
+# The "rdma" binary is not a runtime dependency of this package, so it
+# is not selected. Since a Buildroot user might want to add this
+# command, and the condition to enable it is not trivial, we give a
+# hint here.
+comment "Note: The 'rdma' command is provided by the 'iproute2' package when compiled with 'libmnl'."
+	depends on !BR2_PACKAGE_IPROUTE2 || !BR2_PACKAGE_LIBMNL
+
+endif # BR2_PACKAGE_RDMA_CORE
+
+comment "rdma-core needs a toolchain w/ threads, dynamic library"
+	depends on BR2_USE_MMU
+	depends on BR2_TOOLCHAIN_HAS_SYNC_4
+	depends on !BR2_TOOLCHAIN_HAS_THREADS || BR2_STATIC_LIBS
diff --git a/package/rdma-core/linux-rdma.fragment b/package/rdma-core/linux-rdma.fragment
new file mode 100644
index 0000000000..e305f27e62
--- /dev/null
+++ b/package/rdma-core/linux-rdma.fragment
@@ -0,0 +1,9 @@ 
+CONFIG_INFINIBAND=m
+CONFIG_INFINIBAND_USER_MAD=m
+CONFIG_INFINIBAND_USER_ACCESS=m
+CONFIG_RDMA_RXE=m
+CONFIG_INFINIBAND_IPOIB=m
+CONFIG_INFINIBAND_IPOIB_CM=y
+CONFIG_INFINIBAND_IPOIB_DEBUG_DATA=y
+CONFIG_INFINIBAND_RTRS_CLIENT=m
+CONFIG_INFINIBAND_RTRS_SERVER=m
diff --git a/package/rdma-core/rdma-core.hash b/package/rdma-core/rdma-core.hash
new file mode 100644
index 0000000000..2dd01d749e
--- /dev/null
+++ b/package/rdma-core/rdma-core.hash
@@ -0,0 +1,5 @@ 
+# Locally calculated
+sha256  40737df5158abdfdbf79ea744a74251aedff92fdf8ab7aa637125de6a1cf7e1c  rdma-core-39.0.tar.gz
+sha256  99e0df1d009a21d0dfb031600c550fd8f4efc0c6b2a4ef8b34a995aa6f79c9f4  COPYING.BSD_MIT
+sha256  8177f97513213526df2cf6184d8ff986c675afb514d4e68a404010521b880643  COPYING.GPL2
+sha256  c46a557f25b8ef9bec76526c4e593fc13e6cba27e7ba30d73b6497a689cf06f6  COPYING.md
diff --git a/package/rdma-core/rdma-core.mk b/package/rdma-core/rdma-core.mk
new file mode 100644
index 0000000000..a69c1b22d5
--- /dev/null
+++ b/package/rdma-core/rdma-core.mk
@@ -0,0 +1,24 @@ 
+################################################################################
+#
+# rdma-core
+#
+################################################################################
+
+RDMA_CORE_VERSION = 39.0
+RDMA_CORE_SITE = $(call github,linux-rdma,rdma-core,v$(RDMA_CORE_VERSION))
+RDMA_CORE_LICENSE = GPL-2.0 or BSD-2-Clause
+RDMA_CORE_LICENSE_FILES = COPYING.GPL2 COPYING.BSD_MIT COPYING.md
+RDMA_CORE_DEPENDENCIES = libnl
+RDMA_CORE_INSTALL_STAGING = YES
+
+RDMA_CORE_CONF_OPTS = \
+	-DNO_MAN_PAGES=1 \
+	-DNO_PYVERBS=1
+
+ifeq ($(BR2_TOOLCHAIN_HAS_LIBATOMIC),y)
+RDMA_CORE_CONF_OPTS += \
+	-DCMAKE_EXE_LINKER_FLAGS=-latomic \
+	-DCMAKE_SHARED_LINKER_FLAGS=-latomic
+endif
+
+$(eval $(cmake-package))
diff --git a/package/rdma-core/readme.txt b/package/rdma-core/readme.txt
new file mode 100644
index 0000000000..4f90720ca3
--- /dev/null
+++ b/package/rdma-core/readme.txt
@@ -0,0 +1,74 @@ 
+Testing rdma-core userspace tools
+=================================
+
+Testing rdma-core using Linux software RoCE implementation:
+https://en.wikipedia.org/wiki/RDMA_over_Converged_Ethernet
+
+Using two systems with working TCP/IP conficutation, for example:
+- Server IP: 192.168.123.10
+- Client IP: 192.168.123.20
+
+Make sure firewall configurations are appropriate. Routable RoCE v2
+uses udp/4791. ibv_rc_pingpong uses tcp/18515 for initial
+synchronization.
+
+Note: this test can be executed in two qemu virtual machines with
+bridged networking.
+
+
+Kernel configuration
+--------------------
+
+The Linux Kernel needs some Infiniband configuration. In this example
+the kernel "rdma_rxe" driver is needed (CONFIG_RDMA_RXE=y). See the
+example fragment file provided:
+
+    package/rdma-core/linux-rdma.fragment
+
+
+Buildroot package configuration
+-------------------------------
+
+For setting up a software RoCE link, the "rdma" program is needed. It
+is provided by the "iproute2" package, when "libmnl" is also
+selected. Make sure to have in your Buildroot configuration:
+
+    BR2_PACKAGE_IPROUTE2=y
+    BR2_PACKAGE_LIBMNL=y
+    BR2_PACKAGE_RDMA_CORE=y
+
+
+Setting up the rdma link
+------------------------
+
+On both server and client:
+
+    modprobe rdma_rxe
+    rdma link add rxe0 type rxe netdev eth0
+
+
+Testing with rping
+------------------
+
+On the server side, run the command:
+
+    rping -s -v
+
+On the client side, run the command:
+
+    rping -c -v -a 192.168.123.10
+
+
+Testing with ibv_rc_pingpong
+----------------------------
+
+To test with the pingpong example using the reliable connected (RC)
+transport:
+
+On the server side, run the command:
+
+    ibv_rc_pingpong -g rxe0 -g 1
+
+On the client side, run the command:
+
+    ibv_rc_pingpong -d rxe0 -g 1 192.168.123.10
diff --git a/support/testing/tests/package/test_rdma_core.py b/support/testing/tests/package/test_rdma_core.py
new file mode 100644
index 0000000000..783146202d
--- /dev/null
+++ b/support/testing/tests/package/test_rdma_core.py
@@ -0,0 +1,41 @@ 
+import os
+
+import infra.basetest
+
+
+class TestRdmaCore(infra.basetest.BRTest):
+
+    config = \
+        """
+        BR2_aarch64=y
+        BR2_TOOLCHAIN_EXTERNAL=y
+        BR2_TARGET_GENERIC_GETTY_PORT="ttyAMA0"
+        BR2_LINUX_KERNEL=y
+        BR2_LINUX_KERNEL_CUSTOM_VERSION=y
+        BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="5.15.30"
+        BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
+        BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="board/qemu/aarch64-virt/linux.config"
+        BR2_LINUX_KERNEL_CONFIG_FRAGMENT_FILES="package/rdma-core/linux-rdma.fragment"
+        BR2_LINUX_KERNEL_NEEDS_HOST_OPENSSL=y
+        BR2_TARGET_ROOTFS_CPIO=y
+        BR2_TARGET_ROOTFS_CPIO_GZIP=y
+        # BR2_TARGET_ROOTFS_TAR is not set
+        BR2_PACKAGE_IPROUTE2=y
+        BR2_PACKAGE_LIBMNL=y
+        BR2_PACKAGE_RDMA_CORE=y
+        """
+
+    def test_run(self):
+        img = os.path.join(self.builddir, "images", "rootfs.cpio.gz")
+        kern = os.path.join(self.builddir, "images", "Image")
+        self.emulator.boot(arch="aarch64",
+                           kernel=kern,
+                           kernel_cmdline=["console=ttyAMA0"],
+                           options=["-M", "virt", "-cpu", "cortex-a57", "-m", "512M", "-initrd", img])
+        self.emulator.login()
+
+        # Add the rxe0 interface
+        self.assertRunOk("rdma link add rxe0 type rxe netdev eth0")
+
+        # ibv_devinfo returns 255 if no devices are found
+        self.assertRunOk("ibv_devinfo -v")