env: rename default implementation to env_dpdk

Change-Id: I6aa48861917547e7081951b6d953693e109b02e6
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>

CONFIG

@@ -45,7 +45,7 @@ CONFIG_ADDRESS_SANITIZER?=n
 
 # Directory that contains the desired SPDK environment library.
 # By default, this is implemented using DPDK.
-CONFIG_ENV?=$(SPDK_ROOT_DIR)/lib/env
+CONFIG_ENV?=$(SPDK_ROOT_DIR)/lib/env_dpdk
 
 # This directory should contain 'include' and 'lib' directories for your DPDK
 # installation. Alternatively you can specify this on the command line

PORTING.md

@@ -10,7 +10,7 @@ defined in [include/spdk/env.h](include/spdk/env.h).
 
 SPDK includes a default implementation of the *env* library based
 on the Data Plane Development Kit ([DPDK](http://dpdk.org/)).
-This DPDK implementation can be found in `lib/env`.
+This DPDK implementation can be found in `lib/env_dpdk`.
 
 DPDK is currently supported on Linux and FreeBSD only.
 Users who want to use SPDK on other operating systems, or in
@@ -19,4 +19,4 @@ a new version of the *env* library.  The new implementation can be
 integrated into the SPDK build by updating the following line
 in CONFIG:
 
-    CONFIG_ENV?=$(SPDK_ROOT_DIR)/lib/env
+    CONFIG_ENV?=$(SPDK_ROOT_DIR)/lib/env_dpdk

lib/Makefile

@@ -35,7 +35,7 @@ SPDK_ROOT_DIR := $(abspath $(CURDIR)/..)
 include $(SPDK_ROOT_DIR)/mk/spdk.common.mk
 
 DIRS-y += bdev conf copy cunit event json jsonrpc \
-          log env net rpc trace util nvme nvmf scsi ioat
+          log env_dpdk net rpc trace util nvme nvmf scsi ioat
 ifeq ($(OS),Linux)
 DIRS-y += iscsi
 endif

lib/env_dpdk/Makefile

@@ -36,6 +36,6 @@ include $(SPDK_ROOT_DIR)/mk/spdk.common.mk
 
 CFLAGS += $(DPDK_INC)
 C_SRCS = env.c pci.c vtophys.c
-LIBNAME = env
+LIBNAME = env_dpdk
 
 include $(SPDK_ROOT_DIR)/mk/spdk.lib.mk

lib/env_dpdk/env.mk

@@ -68,5 +68,5 @@ endif
 
 ENV_CFLAGS = $(DPDK_INC)
 ENV_CXXFLAGS = $(ENV_CFLAGS)
-ENV_LIBS = $(SPDK_ROOT_DIR)/lib/env/libspdk_env.a $(DPDK_LIB)
-ENV_LINKER_ARGS = -Wl,--start-group -Wl,--whole-archive $(SPDK_ROOT_DIR)/lib/env/libspdk_env.a $(DPDK_LIB) -Wl,--end-group -Wl,--no-whole-archive
+ENV_LIBS = $(SPDK_ROOT_DIR)/lib/env_dpdk/libspdk_env_dpdk.a $(DPDK_LIB)
+ENV_LINKER_ARGS = -Wl,--start-group -Wl,--whole-archive $(SPDK_ROOT_DIR)/lib/env_dpdk/libspdk_env_dpdk.a $(DPDK_LIB) -Wl,--end-group -Wl,--no-whole-archive