feat: ec module

mk/spdk.modules.mk

@@ -6,6 +6,9 @@
 
 BLOCKDEV_MODULES_LIST = bdev_malloc bdev_null bdev_nvme bdev_passthru bdev_lvol
 BLOCKDEV_MODULES_LIST += bdev_raid bdev_error bdev_gpt bdev_split bdev_delay
+ifeq ($(CONFIG_ISAL),y)
+BLOCKDEV_MODULES_LIST += bdev_ec
+endif
 BLOCKDEV_MODULES_LIST += bdev_zone_block
 BLOCKDEV_MODULES_LIST += blob_bdev blob lvol vmd nvme
 

module/bdev/Makefile

@@ -8,6 +8,8 @@ include $(SPDK_ROOT_DIR)/mk/spdk.common.mk
 
 DIRS-y += delay error gpt lvol malloc null nvme passthru raid split zone_block
 
+DIRS-$(CONFIG_ISAL) += ec
+
 DIRS-$(CONFIG_XNVME) += xnvme
 
 DIRS-$(CONFIG_CRYPTO) += crypto

module/bdev/ec/Makefile

@@ -0,0 +1,22 @@
+#  SPDX-License-Identifier: BSD-3-Clause
+#  Copyright (C) 2026 Longhorn Authors.
+#  All rights reserved.
+
+SPDK_ROOT_DIR := $(abspath $(CURDIR)/../../..)
+include $(SPDK_ROOT_DIR)/mk/spdk.common.mk
+
+SO_VER := 1
+SO_MINOR := 0
+
+C_SRCS = bdev_ec.c bdev_ec_bitmap.c bdev_ec_rpc.c bdev_ec_io.c bdev_ec_rebuild.c \
+	 bdev_ec_resize.c bdev_ec_rmw.c bdev_ec_wib.c bdev_ec_unmap.c
+
+LIBNAME = bdev_ec
+
+# bdev_ec requires ISA-L for Reed-Solomon coding. The isa-l include path and
+# -lisal are provided globally by mk/spdk.common.mk when CONFIG_ISAL=y (the
+# default), so they are not repeated here.
+
+SPDK_MAP_FILE = $(SPDK_ROOT_DIR)/mk/spdk_blank.map
+
+include $(SPDK_ROOT_DIR)/mk/spdk.lib.mk