[PATCH 3/4] Kconfig: Add support for testing RDMA with software RoCE

[cel@kernel.org]

From: Chuck Lever <chuck.lever@oracle.com>

Add kdevops config option to use rxe rather than siw for RDMA. rxe
is the kernel's software RoCE driver, and like siw, it utilizes a
standard Ethernet device.

Suggested-by: Zhu Yanjun <zyjzyj2000@gmail.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
---
 kconfigs/Kconfig.bringup.goals | 10 ++++++++++
 scripts/rdma.Makefile          | 12 ++++++++++++
 2 files changed, 22 insertions(+)

diff --git a/kconfigs/Kconfig.bringup.goals b/kconfigs/Kconfig.bringup.goals
index e8629ebea5e0..794742530e9e 100644
--- a/kconfigs/Kconfig.bringup.goals
+++ b/kconfigs/Kconfig.bringup.goals
@@ -100,6 +100,16 @@ config KDEVOPS_SETUP_RDMA_SIW
 	  To use this device driver, enable the CONFIG_RDMA_SIW
 	  option in your test kernels.
 
+config KDEVOPS_SETUP_RDMA_RXE
+	bool "rxe"
+	help
+	  Provision software-emulated RDMA on target nodes via the
+	  kernel rxe.ko driver. rxe can be used with any standard
+	  Ethernet device, including virtio-net devices.
+
+	  To use this device driver, enable the CONFIG_RDMA_RXE
+	  option in your test kernels.
+
 endchoice
 
 config KDEVOPS_SETUP_KTLS
diff --git a/scripts/rdma.Makefile b/scripts/rdma.Makefile
index d7cdf0062638..dd2a70120eb2 100644
--- a/scripts/rdma.Makefile
+++ b/scripts/rdma.Makefile
@@ -9,3 +9,15 @@ KDEVOPS_BRING_UP_DEPS += siw
 PHONY += siw
 
 endif
+
+ifeq (y,$(CONFIG_KDEVOPS_SETUP_RDMA_RXE))
+
+rxe:
+	$(Q)ansible-playbook $(ANSIBLE_VERBOSE) --extra-vars=@./extra_vars.yaml \
+		-f 30 -i hosts playbooks/rxe.yml
+
+KDEVOPS_BRING_UP_DEPS += rxe
+
+PHONY += rxe
+
+endif
-- 
2.45.1