IB/hfi1, rdmavt: Update copy_sge to use boolean arguments

Convert copy_sge and related SGE state functions to use boolean.
For determining if QP is in user mode, add helper function in rdmavt_qp.h.
This is used to determine if QP needs the last byte ordering.
While here, change rvt_pd.user to a boolean.

Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Reviewed-by: Dean Luick <dean.luick@intel.com>
Signed-off-by: Brian Welty <brian.welty@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
diff --git a/include/rdma/rdma_vt.h b/include/rdma/rdma_vt.h
index a69dee3..8fc1ca7 100644
--- a/include/rdma/rdma_vt.h
+++ b/include/rdma/rdma_vt.h
@@ -164,7 +164,7 @@
 /* Protection domain */
 struct rvt_pd {
 	struct ib_pd ibpd;
-	int user;               /* non-zero if created from user space */
+	bool user;
 };
 
 /* Address handle */