- atomically increment offset

- correct fragment type

This commit was SVN r3430.

src/mca/ptl/mx/ptl_mx.c

@@ -207,7 +207,7 @@ int mca_ptl_mx_send(
     /* must update the offset after actual fragment size is determined 
      * before attempting to send the fragment
      */
-    sendreq->req_offset += size;
+    mca_pml_base_send_request_offset(sendreq, size);
 
     /* start the fragment */
     mx_return = mx_isend(
@@ -338,7 +338,7 @@ int mca_ptl_mx_send_continue(
     /* must update the offset after actual fragment size is determined 
      * before attempting to send the fragment
      */
-    sendreq->req_offset += size;
+    mca_pml_base_send_request_offset(sendreq, size);
 
     /* start the fragment */
     match.sval.uval = (uint32_t)sendreq;

src/mca/ptl/mx/ptl_mx_module.c

@@ -177,7 +177,7 @@ static void mca_ptl_mx_match(void* context, uint64_t match_value, int size)
         frag->frag_size = size;
         frag->frag_recv.frag_base.frag_size = size - sizeof(mca_ptl_base_header_t);
         frag->frag_recv.frag_base.frag_header.hdr_common.hdr_type =
-            MCA_PTL_HDR_TYPE_MATCH;
+            MCA_PTL_HDR_TYPE_FRAG;
 
         /* initialize convertor */
         ompi_convertor_copy(proc->proc_convertor, convertor);