[PATCH rdma-next 4/4] RDMA/netlink: Export LID mask counter (LMC)

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From: Leon Romanovsky <leonro@xxxxxxxxxxxx>

Signed-off-by: Leon Romanovsky <leonro@xxxxxxxxxxxx>
---
 drivers/infiniband/core/nldev.c  | 3 +++
 include/uapi/rdma/rdma_netlink.h | 5 +++++
 2 files changed, 8 insertions(+)

diff --git a/drivers/infiniband/core/nldev.c b/drivers/infiniband/core/nldev.c
index 6b290dada589..8f037a2be508 100644
--- a/drivers/infiniband/core/nldev.c
+++ b/drivers/infiniband/core/nldev.c
@@ -47,6 +47,7 @@ static const struct nla_policy nldev_policy[RDMA_NLDEV_ATTR_MAX] = {
 	[RDMA_NLDEV_ATTR_SUBNET_PREFIX]	= { .type = NLA_U64 },
 	[RDMA_NLDEV_ATTR_LID]		= { .type = NLA_U32 },
 	[RDMA_NLDEV_ATTR_SM_LID]	= { .type = NLA_U32 },
+	[RDMA_NLDEV_ATTR_LMC]		= { .type = NLA_U8 },
 };
 
 static int fill_dev_info(struct sk_buff *msg, struct ib_device *device)
@@ -105,6 +106,8 @@ static int fill_port_info(struct sk_buff *msg,
 		return -EMSGSIZE;
 	if (nla_put_u32(msg, RDMA_NLDEV_ATTR_SM_LID, attr.sm_lid))
 		return -EMSGSIZE;
+	if (nla_put_u8(msg, RDMA_NLDEV_ATTR_LMC, attr.lmc))
+		return -EMSGSIZE;
 	return 0;
 }
 
diff --git a/include/uapi/rdma/rdma_netlink.h b/include/uapi/rdma/rdma_netlink.h
index 22e4870f2e31..9e9357e63b65 100644
--- a/include/uapi/rdma/rdma_netlink.h
+++ b/include/uapi/rdma/rdma_netlink.h
@@ -292,6 +292,11 @@ enum rdma_nldev_attr {
 	RDMA_NLDEV_ATTR_LID,			/* u32 */
 	RDMA_NLDEV_ATTR_SM_LID,			/* u32 */
 
+	/*
+	 * LID mask count (LMC)
+	 */
+	RDMA_NLDEV_ATTR_LMC,			/* u8 */
+
 	RDMA_NLDEV_ATTR_MAX
 };
 #endif /* _UAPI_RDMA_NETLINK_H */
-- 
2.13.1

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