configure, zebra: include DPDK headers and shared libs in the dp-dpdk build

Signed-off-by: Donald Sharp <sharpd@nvidia.com>
   -> Moved new capabilities needed to under HAVE_DPDK
Signed-off-by: Anuradha Karuppiah <anuradhak@nvidia.com>

configure.ac

@@ -1998,6 +1998,18 @@ if test "$enable_grpc" = "yes"; then
   AC_LANG_POP([C++])
 fi
 
+dnl ---------
+dnl DPDK
+dnl ---------
+if test "$enable_dp_dpdk" = "yes"; then
+  PKG_CHECK_MODULES([DPDK], [libdpdk], [
+    AC_DEFINE([HAVE_DPDK], [1], [Enable DPDK backend])
+    DPDK=true
+  ], [
+    AC_MSG_ERROR([configuration specifies --enable-dp-dpdk but DPDK libs were not found])
+  ])
+fi
+
 dnl -----
 dnl LTTng
 dnl -----

zebra/main.c

@@ -106,8 +106,12 @@ const struct option longopts[] = {
 	{0}};
 
 zebra_capabilities_t _caps_p[] = {ZCAP_NET_ADMIN, ZCAP_SYS_ADMIN,
-				  ZCAP_NET_RAW,     ZCAP_IPC_LOCK,
+				  ZCAP_NET_RAW,
-				  ZCAP_READ_SEARCH, ZCAP_SYS_RAWIO};
+#ifdef HAVE_DPDK
+				  ZCAP_IPC_LOCK,  ZCAP_READ_SEARCH,
+				  ZCAP_SYS_RAWIO
+#endif
+};
 
 /* zebra privileges to run with */
 struct zebra_privs_t zserv_privs = {

zebra/subdir.am

@@ -268,3 +268,5 @@ endif
 
 zebra_zebra_dplane_dpdk_la_SOURCES = zebra/dpdk/zebra_dplane_dpdk.c zebra/dpdk/zebra_dplane_dpdk_vty.c
 zebra_zebra_dplane_dpdk_la_LDFLAGS = -avoid-version -module -shared -export-dynamic -L/usr/local/lib -v
+zebra_zebra_dplane_dpdk_la_CFLAGS = $(DPDK_CFLAGS)
+zebra_zebra_dplane_dpdk_la_LIBADD  = $(DPDK_LIBS)