Add the rt linux 4.1.3-rt3 as base

Import the rt linux 4.1.3-rt3 as OPNFV kvm base.

It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:

commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date:   Sat Jul 25 12:13:34 2015 +0200

    Prepare v4.1.3-rt3

    Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>

We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.

Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>

1 files changed, 118 insertions, 0 deletions

diff --git a/kernel/drivers/infiniband/hw/usnic/usnic_ib.h b/kernel/drivers/infiniband/hw/usnic/usnic_ib.h
new file mode 100644
index 000000000..e5a9297dd
--- /dev/null
+++ b/kernel/drivers/infiniband/hw/usnic/usnic_ib.h
@@ -0,0 +1,118 @@
+/*
+ * Copyright (c) 2013, Cisco Systems, Inc. All rights reserved.
+ *
+ * This program is free software; you may redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ */
+
+#ifndef USNIC_IB_H_
+#define USNIC_IB_H_
+
+#include <linux/iommu.h>
+#include <linux/netdevice.h>
+
+#include <rdma/ib_verbs.h>
+
+
+#include "usnic.h"
+#include "usnic_abi.h"
+#include "usnic_vnic.h"
+
+#define USNIC_IB_PORT_CNT		1
+#define USNIC_IB_NUM_COMP_VECTORS	1
+
+extern unsigned int usnic_ib_share_vf;
+
+struct usnic_ib_ucontext {
+	struct ib_ucontext		ibucontext;
+	/* Protected by usnic_ib_dev->usdev_lock */
+	struct list_head		qp_grp_list;
+	struct list_head		link;
+};
+
+struct usnic_ib_pd {
+	struct ib_pd			ibpd;
+	struct usnic_uiom_pd		*umem_pd;
+};
+
+struct usnic_ib_mr {
+	struct ib_mr			ibmr;
+	struct usnic_uiom_reg		*umem;
+};
+
+struct usnic_ib_dev {
+	struct ib_device		ib_dev;
+	struct pci_dev			*pdev;
+	struct net_device		*netdev;
+	struct usnic_fwd_dev		*ufdev;
+	struct list_head		ib_dev_link;
+	struct list_head		vf_dev_list;
+	struct list_head		ctx_list;
+	struct mutex			usdev_lock;
+
+	/* provisioning information */
+	struct kref			vf_cnt;
+	unsigned int			vf_res_cnt[USNIC_VNIC_RES_TYPE_MAX];
+
+	/* sysfs vars for QPN reporting */
+	struct kobject *qpn_kobj;
+};
+
+struct usnic_ib_vf {
+	struct usnic_ib_dev		*pf;
+	spinlock_t			lock;
+	struct usnic_vnic		*vnic;
+	unsigned int			qp_grp_ref_cnt;
+	struct usnic_ib_pd		*pd;
+	struct list_head		link;
+};
+
+static inline
+struct usnic_ib_dev *to_usdev(struct ib_device *ibdev)
+{
+	return container_of(ibdev, struct usnic_ib_dev, ib_dev);
+}
+
+static inline
+struct usnic_ib_ucontext *to_ucontext(struct ib_ucontext *ibucontext)
+{
+	return container_of(ibucontext, struct usnic_ib_ucontext, ibucontext);
+}
+
+static inline
+struct usnic_ib_pd *to_upd(struct ib_pd *ibpd)
+{
+	return container_of(ibpd, struct usnic_ib_pd, ibpd);
+}
+
+static inline
+struct usnic_ib_ucontext *to_uucontext(struct ib_ucontext *ibucontext)
+{
+	return container_of(ibucontext, struct usnic_ib_ucontext, ibucontext);
+}
+
+static inline
+struct usnic_ib_mr *to_umr(struct ib_mr *ibmr)
+{
+	return container_of(ibmr, struct usnic_ib_mr, ibmr);
+}
+void usnic_ib_log_vf(struct usnic_ib_vf *vf);
+
+#define UPDATE_PTR_LEFT(N, P, L)			\
+do {							\
+	L -= (N);					\
+	P += (N);					\
+} while (0)
+
+#endif /* USNIC_IB_H_ */