From: Leon Romanovsky <leonro@mellanox.com>
Date: Wed, 28 Jun 2017 15:05:14 +0300
Subject: RDMA/netlink: Advertise IB subnet prefix
Patch-mainline: v4.14-rc1
Git-commit: 12026fbba6af2fc53c3c6cf88bdfc6561986ba82
References: bsc#1046306 FATE#322942
Add IB subnet prefix to the port properties exported
by RDMA netlink.
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
drivers/infiniband/core/nldev.c | 5 +++++
include/uapi/rdma/rdma_netlink.h | 5 +++++
2 files changed, 10 insertions(+)
--- a/drivers/infiniband/core/nldev.c
+++ b/drivers/infiniband/core/nldev.c
@@ -44,6 +44,7 @@ static const struct nla_policy nldev_pol
.len = IB_FW_VERSION_NAME_MAX - 1},
[RDMA_NLDEV_ATTR_NODE_GUID] = { .type = NLA_U64 },
[RDMA_NLDEV_ATTR_SYS_IMAGE_GUID] = { .type = NLA_U64 },
+ [RDMA_NLDEV_ATTR_SUBNET_PREFIX] = { .type = NLA_U64 },
};
static int fill_dev_info(struct sk_buff *msg, struct ib_device *device)
@@ -97,6 +98,10 @@ static int fill_port_info(struct sk_buff
if (nla_put_u64_64bit(msg, RDMA_NLDEV_ATTR_CAP_FLAGS,
(u64)attr.port_cap_flags, 0))
return -EMSGSIZE;
+ if (rdma_protocol_ib(device, port) &&
+ nla_put_u64_64bit(msg, RDMA_NLDEV_ATTR_SUBNET_PREFIX,
+ attr.subnet_prefix, 0))
+ return -EMSGSIZE;
return 0;
}
--- a/include/uapi/rdma/rdma_netlink.h
+++ b/include/uapi/rdma/rdma_netlink.h
@@ -279,6 +279,11 @@ enum rdma_nldev_attr {
*/
RDMA_NLDEV_ATTR_SYS_IMAGE_GUID, /* u64 */
+ /*
+ * Subnet prefix (in host byte order)
+ */
+ RDMA_NLDEV_ATTR_SUBNET_PREFIX, /* u64 */
+
RDMA_NLDEV_ATTR_MAX
};
#endif /* _UAPI_RDMA_NETLINK_H */