From: Leon Romanovsky <leonro@xxxxxxxxxxxx>
Device memory (DM) are registered as MR during initialization flow,
these MRs were not tracked by resource tracker and had res->valid set
as a false. Update the code to manage them too.
Before this change:
[leonro@vm ~]$ ibv_rc_pingpong -j &
[leonro@vm ~]$ rdma res show mr <-- shows nothing
After this change:
[leonro@vm ~]$ ibv_rc_pingpong -j &
[leonro@vm ~]$ rdma res show mr
dev ibp0s9 mrn 0 mrlen 4096 pdn 3 pid 734 comm ibv_rc_pingpong
Fixes: be934cca9e98 ("IB/uverbs: Add device memory registration ioctl support")
Signed-off-by: Leon Romanovsky <leonro@xxxxxxxxxxxx>
---
drivers/infiniband/core/uverbs_std_types_mr.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/drivers/infiniband/core/uverbs_std_types_mr.c b/drivers/infiniband/core/uverbs_std_types_mr.c
index 9b22bb553e8b..9ec5ea49e06e 100644
--- a/drivers/infiniband/core/uverbs_std_types_mr.c
+++ b/drivers/infiniband/core/uverbs_std_types_mr.c
@@ -31,6 +31,7 @@
*/
#include "rdma_core.h"
+#include "restrack.h"
#include "uverbs.h"
#include <rdma/uverbs_std_types.h>
@@ -134,6 +135,15 @@ static int UVERBS_HANDLER(UVERBS_METHOD_DM_MR_REG)(
atomic_inc(&pd->usecnt);
atomic_inc(&dm->usecnt);
+ rdma_restrack_new(&mr->res, RDMA_RESTRACK_MR);
+ rdma_restrack_set_name(&mr->res, NULL);
+ ret = rdma_restrack_add(&mr->res);
+ if (ret) {
+ rdma_restrack_put(&mr->res);
+ pd->device->ops.dereg_mr(mr, &attrs->driver_udata);
+ return ret;
+ }
+
uobj->object = mr;
uverbs_finalize_uobj_create(attrs, UVERBS_ATTR_REG_DM_MR_HANDLE);
--
2.26.2
