staging/rdma/hfi1: Support query gid in rdmavt

Query gid is in rdmavt, but still relies on the driver to maintain the
guid table. Add the necessary driver call back and remove the existing
verb handler.

Reviewed-by: Harish Chegondi <harish.chegondi@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>

drivers/staging/rdma/hfi1/verbs.c

@@ -1345,28 +1345,20 @@ static int modify_port(struct ib_device *ibdev, u8 port,
 	return ret;
 }
 
-static int query_gid(struct ib_device *ibdev, u8 port,
-		     int index, union ib_gid *gid)
+static int hfi1_get_guid_be(struct rvt_dev_info *rdi, struct rvt_ibport *rvp,
+			    int guid_index, __be64 *guid)
 {
-	struct hfi1_devdata *dd = dd_from_ibdev(ibdev);
-	int ret = 0;
+	struct hfi1_ibport *ibp = container_of(rvp, struct hfi1_ibport, rvp);
+	struct hfi1_pportdata *ppd = ppd_from_ibp(ibp);
 
-	if (!port || port > dd->num_pports)
-		ret = -EINVAL;
-	else {
-		struct hfi1_ibport *ibp = to_iport(ibdev, port);
-		struct hfi1_pportdata *ppd = ppd_from_ibp(ibp);
-
-		gid->global.subnet_prefix = ibp->rvp.gid_prefix;
-		if (index == 0)
-			gid->global.interface_id = cpu_to_be64(ppd->guid);
-		else if (index < HFI1_GUIDS_PER_PORT)
-			gid->global.interface_id = ibp->guids[index - 1];
-		else
-			ret = -EINVAL;
-	}
+	if (guid_index == 0)
+		*guid = cpu_to_be64(ppd->guid);
+	else if (guid_index < HFI1_GUIDS_PER_PORT)
+		*guid = ibp->guids[guid_index - 1];
+	else
+		return -EINVAL;
 
-	return ret;
+	return 0;
 }
 
 /*
@@ -1538,7 +1530,6 @@ int hfi1_register_ib_device(struct hfi1_devdata *dd)
 	ibdev->modify_device = modify_device;
 	ibdev->query_port = query_port;
 	ibdev->modify_port = modify_port;
-	ibdev->query_gid = query_gid;
 
 	/* keep process mad in the driver */
 	ibdev->process_mad = hfi1_process_mad;
@@ -1555,6 +1546,7 @@ int hfi1_register_ib_device(struct hfi1_devdata *dd)
 	dd->verbs_dev.rdi.driver_f.get_pci_dev = get_pci_dev;
 	dd->verbs_dev.rdi.driver_f.check_ah = hfi1_check_ah;
 	dd->verbs_dev.rdi.driver_f.notify_new_ah = hfi1_notify_new_ah;
+	dd->verbs_dev.rdi.driver_f.get_guid_be = hfi1_get_guid_be;
 	/*
 	 * Fill in rvt info device attributes.
 	 */