prov/efa: Implement efa_msg interface

Rename efa_dgram_msg.c to efa_msg.c as a common MSG interface for
both rdm and dgram ep type.
Add support for FI_INJECT and FI_REMOTE_CQ_DATA.
Replace ibv_post_send with ibv_wr* calls and remove xmit_more_wr_head
and xmit_more_wr_tail.
Replace recv_more_wr_head and recv_more_wr_tail with efa_recv_wr_vec.

Signed-off-by: Jessie Yang <jiaxiyan@amazon.com>

libfabric.vcxproj

@@ -884,9 +884,9 @@
     <ClCompile Include="prov\efa\src\efa_prov.c" />
     <ClCompile Include="prov\efa\src\efa_env.c" />
     <ClCompile Include="prov\efa\src\efa_cntr.c" />
+    <ClCompile Include="prov\efa\src\efa_msg.c" />
     <ClCompile Include="prov\efa\src\dgram\efa_dgram_ep.c" />
     <ClCompile Include="prov\efa\src\dgram\efa_dgram_cq.c" />
-    <ClCompile Include="prov\efa\src\dgram\efa_dgram_msg.c" />
     <ClCompile Include="prov\efa\src\dgram\efa_dgram_rma.c" />
     <ClCompile Include="prov\efa\src\rdm\efa_rdm_ope.c" />
     <ClCompile Include="prov\efa\src\rdm\efa_rdm_rxe_map.c" />

prov/efa/Makefile.include

@@ -47,9 +47,9 @@ _efa_files = \
 	prov/efa/src/efa_prov.c	\
 	prov/efa/src/efa_env.c	\
 	prov/efa/src/efa_cntr.c	\
+	prov/efa/src/efa_msg.c \
 	prov/efa/src/dgram/efa_dgram_ep.c \
 	prov/efa/src/dgram/efa_dgram_cq.c \
-	prov/efa/src/dgram/efa_dgram_msg.c \
 	prov/efa/src/dgram/efa_dgram_rma.c \
 	prov/efa/src/rdm/efa_rdm_peer.c	\
 	prov/efa/src/rdm/efa_rdm_cq.c \