[PATCH 07/13] RDMA/rmr: include client and server modules into kernel compilation

[Md Haris Iqbal]

Add the per-directory Kconfig and Makefile, and wire them into the
parent drivers/infiniband Kconfig and drivers/infiniband/ulp Makefile
so RMR can be enabled in a kernel build.

Three Kconfig symbols are introduced:

  CONFIG_INFINIBAND_RMR		(silent, selected by either side)
  CONFIG_INFINIBAND_RMR_CLIENT	(depends on INFINIBAND_RTRS_CLIENT)
  CONFIG_INFINIBAND_RMR_SERVER	(depends on INFINIBAND_RTRS_SERVER)

The Makefile builds two modules: rmr-client.ko and rmr-server.ko,
sharing the pool, map, request and library code added earlier in
this series.

Signed-off-by: Md Haris Iqbal <haris.iqbal@xxxxxxxxx>
Signed-off-by: Jia Li <jia.li@xxxxxxxxx>
---
 drivers/infiniband/Kconfig          |  1 +
 drivers/infiniband/ulp/Makefile     |  1 +
 drivers/infiniband/ulp/rmr/Kconfig  | 35 +++++++++++++++++++++++++++++
 drivers/infiniband/ulp/rmr/Makefile | 23 +++++++++++++++++++
 4 files changed, 60 insertions(+)
 create mode 100644 drivers/infiniband/ulp/rmr/Kconfig
 create mode 100644 drivers/infiniband/ulp/rmr/Makefile

diff --git a/drivers/infiniband/Kconfig b/drivers/infiniband/Kconfig
index a7e3f29dc037..4b2470b5a592 100644
--- a/drivers/infiniband/Kconfig
+++ b/drivers/infiniband/Kconfig
@@ -110,5 +110,6 @@ source "drivers/infiniband/ulp/srpt/Kconfig"
 source "drivers/infiniband/ulp/iser/Kconfig"
 source "drivers/infiniband/ulp/isert/Kconfig"
 source "drivers/infiniband/ulp/rtrs/Kconfig"
+source "drivers/infiniband/ulp/rmr/Kconfig"
 
 endif # INFINIBAND
diff --git a/drivers/infiniband/ulp/Makefile b/drivers/infiniband/ulp/Makefile
index 51b0d41699b8..24c8e4b00065 100644
--- a/drivers/infiniband/ulp/Makefile
+++ b/drivers/infiniband/ulp/Makefile
@@ -5,3 +5,4 @@ obj-$(CONFIG_INFINIBAND_SRPT)		+= srpt/
 obj-$(CONFIG_INFINIBAND_ISER)		+= iser/
 obj-$(CONFIG_INFINIBAND_ISERT)		+= isert/
 obj-$(CONFIG_INFINIBAND_RTRS)		+= rtrs/
+obj-$(CONFIG_INFINIBAND_RMR)		+= rmr/
diff --git a/drivers/infiniband/ulp/rmr/Kconfig b/drivers/infiniband/ulp/rmr/Kconfig
new file mode 100644
index 000000000000..1d62322a02be
--- /dev/null
+++ b/drivers/infiniband/ulp/rmr/Kconfig
@@ -0,0 +1,35 @@
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+config INFINIBAND_RMR
+	tristate
+	depends on INFINIBAND_ADDR_TRANS
+
+config INFINIBAND_RMR_CLIENT
+	tristate "RMR client module"
+	depends on INFINIBAND_ADDR_TRANS
+	depends on INFINIBAND_RTRS_CLIENT
+	select INFINIBAND_RMR
+	help
+	  Reliable Multicast over RTRS (RMR) client module.
+
+	  RMR is an RDMA ULP that provides active-active block-level
+	  replication on top of the RTRS transport.  It guarantees
+	  delivery of an I/O to a group of storage nodes and handles
+	  resynchronization of data between storage nodes without
+	  involving the compute client.  This option builds the client
+	  side, intended to be used by an upper-layer initiator such
+	  as BRMR.
+
+	  If unsure, say N.
+
+config INFINIBAND_RMR_SERVER
+	tristate "RMR server module"
+	depends on INFINIBAND_ADDR_TRANS
+	depends on INFINIBAND_RTRS_SERVER
+	select INFINIBAND_RMR
+	help
+	  RMR server module processing connection, IO and replication
+	  requests from RMR clients on top of RTRS.  It will pass IO
+	  requests to its consumer, e.g. BRMR_server.
+
+	  If unsure, say N.
diff --git a/drivers/infiniband/ulp/rmr/Makefile b/drivers/infiniband/ulp/rmr/Makefile
new file mode 100644
index 000000000000..c173092f4cf2
--- /dev/null
+++ b/drivers/infiniband/ulp/rmr/Makefile
@@ -0,0 +1,23 @@
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+ccflags-y := -I$(srctree)/drivers/infiniband/ulp/rtrs
+
+CFLAGS_rmr-clt-trace.o = -I$(src)
+
+rmr-client-y := rmr-pool.o \
+		rmr-clt.o \
+		rmr-map-mgmt.o \
+		rmr-clt-stats.o \
+		rmr-clt-sysfs.o \
+		rmr-map.o \
+		rmr-clt-trace.o
+
+rmr-server-y := rmr-pool.o \
+		rmr-srv.o \
+		rmr-srv-md.o \
+		rmr-srv-sysfs.o \
+		rmr-req.o \
+		rmr-map.o
+
+obj-$(CONFIG_INFINIBAND_RMR_CLIENT) += rmr-client.o
+obj-$(CONFIG_INFINIBAND_RMR_SERVER) += rmr-server.o
-- 
2.43.0