IB/qib: Remove dma.c and use rdmavt version of dma functions

This patch removes the qib_dma.c file and uses the version which has been
added to rdmavt.

Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>

drivers/infiniband/hw/qib/Makefile

@@ -1,6 +1,6 @@
 obj-$(CONFIG_INFINIBAND_QIB) += ib_qib.o
 
-ib_qib-y := qib_cq.o qib_diag.o qib_dma.o qib_driver.o qib_eeprom.o \
+ib_qib-y := qib_cq.o qib_diag.o qib_driver.o qib_eeprom.o \
 	qib_file_ops.o qib_fs.o qib_init.o qib_intr.o qib_keys.o \
 	qib_mad.o qib_mmap.o qib_mr.o qib_pcie.o qib_pio_copy.o \
 	qib_qp.o qib_qsfp.o qib_rc.o qib_ruc.o qib_sdma.o qib_srq.o \

drivers/infiniband/hw/qib/qib_verbs.c

@@ -41,6 +41,7 @@
 #include <linux/mm.h>
 #include <linux/random.h>
 #include <linux/vmalloc.h>
+#include <rdma/rdma_vt.h>
 
 #include "qib.h"
 #include "qib_common.h"
@@ -2273,7 +2274,7 @@ int qib_register_ib_device(struct qib_devdata *dd)
 	ibdev->detach_mcast = qib_multicast_detach;
 	ibdev->process_mad = qib_process_mad;
 	ibdev->mmap = qib_mmap;
-	ibdev->dma_ops = &qib_dma_mapping_ops;
+	ibdev->dma_ops = NULL;
 	ibdev->get_port_immutable = qib_port_immutable;
 
 	snprintf(ibdev->node_desc, sizeof(ibdev->node_desc),

drivers/infiniband/hw/qib/qib_verbs.h

@@ -1182,6 +1182,4 @@ extern unsigned int ib_qib_max_srq_wrs;
 
 extern const u32 ib_qib_rnr_table[];
 
-extern struct ib_dma_mapping_ops qib_dma_mapping_ops;
-
 #endif                          /* QIB_VERBS_H */