From: Leon Romanovsky <leonro@xxxxxxxxxxxx>
Allow user space applications directly ask for a PD object
by exporting unique identifier.
Signed-off-by: Leon Romanovsky <leonro@xxxxxxxxxxxx>
---
drivers/infiniband/core/nldev.c | 4 ++++
include/uapi/rdma/rdma_netlink.h | 4 ++++
2 files changed, 8 insertions(+)
diff --git a/drivers/infiniband/core/nldev.c b/drivers/infiniband/core/nldev.c
index ba8ce8058178..68f9a630dfaa 100644
--- a/drivers/infiniband/core/nldev.c
+++ b/drivers/infiniband/core/nldev.c
@@ -107,6 +107,7 @@ static const struct nla_policy nldev_policy[RDMA_NLDEV_ATTR_MAX] = {
[RDMA_NLDEV_ATTR_DRIVER_U32] = { .type = NLA_U32 },
[RDMA_NLDEV_ATTR_DRIVER_S64] = { .type = NLA_S64 },
[RDMA_NLDEV_ATTR_DRIVER_U64] = { .type = NLA_U64 },
+ [RDMA_NLDEV_ATTR_RES_PDN] = { .type = NLA_U32 },
};
static int put_driver_name_print_type(struct sk_buff *msg, const char *name,
@@ -589,6 +590,9 @@ static int fill_res_pd_entry(struct sk_buff *msg, struct netlink_callback *cb,
pd->unsafe_global_rkey))
goto err;
+ if (nla_put_u32(msg, RDMA_NLDEV_ATTR_RES_PDN, pd->pdn))
+ goto err;
+
if (fill_res_name_pid(msg, res))
goto err;
diff --git a/include/uapi/rdma/rdma_netlink.h b/include/uapi/rdma/rdma_netlink.h
index 2e18b77a817f..97e82991fcee 100644
--- a/include/uapi/rdma/rdma_netlink.h
+++ b/include/uapi/rdma/rdma_netlink.h
@@ -430,6 +430,10 @@ enum rdma_nldev_attr {
RDMA_NLDEV_ATTR_DRIVER_S64, /* s64 */
RDMA_NLDEV_ATTR_DRIVER_U64, /* u64 */
+ /*
+ * PD identifier, unique across IB device
+ */
+ RDMA_NLDEV_ATTR_RES_PDN, /* u32 */
/*
* Always the end
*/
--
2.19.1
