[PATCH rdma-next 1/4] RDMA/netlink: Export guid and sys_image_guid

Leon Romanovsky
2017-06-28T13:34:42Z

From: Leon Romanovsky <leonro-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>

Add GUID and system image GUID to the device properties
exported by RDMA netlink, to be used by RDMAtool.

Signed-off-by: Leon Romanovsky <leonro-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
---
drivers/infiniband/core/nldev.c | 7 +++++++
include/uapi/rdma/rdma_netlink.h | 13 +++++++++++++
2 files changed, 20 insertions(+)

diff --git a/drivers/infiniband/core/nldev.c b/drivers/infiniband/core/nldev.c
index 888eadced3bd..56500810c2c0 100644
--- a/drivers/infiniband/core/nldev.c
+++ b/drivers/infiniband/core/nldev.c
@@ -42,6 +42,8 @@ static const struct nla_policy nldev_policy[RDMA_NLDEV_ATTR_MAX] = {
[RDMA_NLDEV_ATTR_PORT_INDEX] = { .type = NLA_U32 },
[RDMA_NLDEV_ATTR_FW_VERSION] = { .type = NLA_NUL_STRING,
.len = IB_FW_VERSION_NAME_MAX - 1},
+ [RDMA_NLDEV_ATTR_GUID] = { .type = NLA_U64 },
+ [RDMA_NLDEV_ATTR_SYS_IMAGE_GUID] = { .type = NLA_U64 },
};

static int fill_dev_info(struct sk_buff *msg, struct ib_device *device)
@@ -64,6 +66,11 @@ static int fill_dev_info(struct sk_buff *msg, struct ib_device *device)
if (nla_put_string(msg, RDMA_NLDEV_ATTR_FW_VERSION, fw))
return -EMSGSIZE;

+ if (nla_put_u64_64bit(msg, RDMA_NLDEV_ATTR_GUID, device->node_guid, 0))
+ return -EMSGSIZE;
+ if (nla_put_u64_64bit(msg, RDMA_NLDEV_ATTR_SYS_IMAGE_GUID,
+ device->attrs.sys_image_guid, 0))
+ return -EMSGSIZE;
return 0;
}

diff --git a/include/uapi/rdma/rdma_netlink.h b/include/uapi/rdma/rdma_netlink.h
index cfcb2a4224fa..f46af029ace2 100644
--- a/include/uapi/rdma/rdma_netlink.h
+++ b/include/uapi/rdma/rdma_netlink.h
@@ -266,6 +266,19 @@ enum rdma_nldev_attr {
* Devices without FW will return empty string terminated by "\0"
*/
RDMA_NLDEV_ATTR_FW_VERSION, /* string */
+
+ /*
+ * GUID (in network byte order) associated with the RDMA device.
+ */
+ RDMA_NLDEV_ATTR_GUID, /* u64 */
+
+ /*
+ * System image GUID (in network byte order) associated with
+ * this RDMA device and other devices which are part of a
+ * single system.
+ */
+ RDMA_NLDEV_ATTR_SYS_IMAGE_GUID, /* u64 */
+
RDMA_NLDEV_ATTR_MAX
};
#endif /* _UAPI_RDMA_NETLINK_H */
--
2.13.1