[PATCH for-next 3/4] RDMA/bnxt_re: Add support for modify_device hook

[Selvin Xavier <selvin.xavier@broadcom.com>]

From: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>

Adds support for modify_device in the driver
for node desc changes.

Signed-off-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
---
 drivers/infiniband/hw/bnxt_re/ib_verbs.c | 16 ++++++++++++++++
 drivers/infiniband/hw/bnxt_re/ib_verbs.h |  3 +++
 drivers/infiniband/hw/bnxt_re/main.c     |  1 +
 3 files changed, 20 insertions(+)

diff --git a/drivers/infiniband/hw/bnxt_re/ib_verbs.c b/drivers/infiniband/hw/bnxt_re/ib_verbs.c
index 55a3cc8..2a21a90 100644
--- a/drivers/infiniband/hw/bnxt_re/ib_verbs.c
+++ b/drivers/infiniband/hw/bnxt_re/ib_verbs.c
@@ -211,6 +211,22 @@ int bnxt_re_query_device(struct ib_device *ibdev,
 	return 0;
 }
 
+int bnxt_re_modify_device(struct ib_device *ibdev,
+			  int device_modify_mask,
+			  struct ib_device_modify *device_modify)
+{
+	ibdev_dbg(ibdev, "Modify device with mask 0x%x", device_modify_mask);
+
+	if (device_modify_mask & ~IB_DEVICE_MODIFY_NODE_DESC)
+		return -EOPNOTSUPP;
+
+	if (!(device_modify_mask & IB_DEVICE_MODIFY_NODE_DESC))
+		return 0;
+
+	memcpy(ibdev->node_desc, device_modify->node_desc, IB_DEVICE_NODE_DESC_MAX);
+	return 0;
+}
+
 /* Port */
 int bnxt_re_query_port(struct ib_device *ibdev, u32 port_num,
 		       struct ib_port_attr *port_attr)
diff --git a/drivers/infiniband/hw/bnxt_re/ib_verbs.h b/drivers/infiniband/hw/bnxt_re/ib_verbs.h
index b789e47..83a584e 100644
--- a/drivers/infiniband/hw/bnxt_re/ib_verbs.h
+++ b/drivers/infiniband/hw/bnxt_re/ib_verbs.h
@@ -196,6 +196,9 @@ static inline bool bnxt_re_is_var_size_supported(struct bnxt_re_dev *rdev,
 int bnxt_re_query_device(struct ib_device *ibdev,
 			 struct ib_device_attr *ib_attr,
 			 struct ib_udata *udata);
+int bnxt_re_modify_device(struct ib_device *ibdev,
+			  int device_modify_mask,
+			  struct ib_device_modify *device_modify);
 int bnxt_re_query_port(struct ib_device *ibdev, u32 port_num,
 		       struct ib_port_attr *port_attr);
 int bnxt_re_get_port_immutable(struct ib_device *ibdev, u32 port_num,
diff --git a/drivers/infiniband/hw/bnxt_re/main.c b/drivers/infiniband/hw/bnxt_re/main.c
index 3a01818..d825eda 100644
--- a/drivers/infiniband/hw/bnxt_re/main.c
+++ b/drivers/infiniband/hw/bnxt_re/main.c
@@ -911,6 +911,7 @@ static const struct ib_device_ops bnxt_re_dev_ops = {
 	.post_srq_recv = bnxt_re_post_srq_recv,
 	.query_ah = bnxt_re_query_ah,
 	.query_device = bnxt_re_query_device,
+	.modify_device = bnxt_re_modify_device,
 	.query_pkey = bnxt_re_query_pkey,
 	.query_port = bnxt_re_query_port,
 	.query_qp = bnxt_re_query_qp,
-- 
2.5.5