summaryrefslogtreecommitdiff
path: root/drivers/infiniband/hw/mlx5/restrack.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/infiniband/hw/mlx5/restrack.c')
-rw-r--r--drivers/infiniband/hw/mlx5/restrack.c90
1 files changed, 90 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/mlx5/restrack.c b/drivers/infiniband/hw/mlx5/restrack.c
new file mode 100644
index 000000000000..8f6c04f12531
--- /dev/null
+++ b/drivers/infiniband/hw/mlx5/restrack.c
@@ -0,0 +1,90 @@
+// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
+/*
+ * Copyright (c) 2019, Mellanox Technologies inc. All rights reserved.
+ */
+
+#include <uapi/rdma/rdma_netlink.h>
+#include <rdma/ib_umem_odp.h>
+#include <rdma/restrack.h>
+#include "mlx5_ib.h"
+
+static int fill_stat_mr_entry(struct sk_buff *msg,
+ struct rdma_restrack_entry *res)
+{
+ struct ib_mr *ibmr = container_of(res, struct ib_mr, res);
+ struct mlx5_ib_mr *mr = to_mmr(ibmr);
+ struct nlattr *table_attr;
+
+ if (!(mr->access_flags & IB_ACCESS_ON_DEMAND))
+ return 0;
+
+ table_attr = nla_nest_start(msg,
+ RDMA_NLDEV_ATTR_STAT_HWCOUNTERS);
+
+ if (!table_attr)
+ goto err;
+
+ if (rdma_nl_stat_hwcounter_entry(msg, "page_faults",
+ atomic64_read(&mr->odp_stats.faults)))
+ goto err_table;
+ if (rdma_nl_stat_hwcounter_entry(
+ msg, "page_invalidations",
+ atomic64_read(&mr->odp_stats.invalidations)))
+ goto err_table;
+
+ nla_nest_end(msg, table_attr);
+ return 0;
+
+err_table:
+ nla_nest_cancel(msg, table_attr);
+err:
+ return -EMSGSIZE;
+}
+
+static int fill_res_mr_entry(struct sk_buff *msg,
+ struct rdma_restrack_entry *res)
+{
+ struct ib_mr *ibmr = container_of(res, struct ib_mr, res);
+ struct mlx5_ib_mr *mr = to_mmr(ibmr);
+ struct nlattr *table_attr;
+
+ if (!(mr->access_flags & IB_ACCESS_ON_DEMAND))
+ return 0;
+
+ table_attr = nla_nest_start(msg, RDMA_NLDEV_ATTR_DRIVER);
+ if (!table_attr)
+ goto err;
+
+ if (mr->is_odp_implicit) {
+ if (rdma_nl_put_driver_string(msg, "odp", "implicit"))
+ goto err;
+ } else {
+ if (rdma_nl_put_driver_string(msg, "odp", "explicit"))
+ goto err;
+ }
+
+ nla_nest_end(msg, table_attr);
+ return 0;
+
+err:
+ nla_nest_cancel(msg, table_attr);
+ return -EMSGSIZE;
+}
+
+int mlx5_ib_fill_res_entry(struct sk_buff *msg,
+ struct rdma_restrack_entry *res)
+{
+ if (res->type == RDMA_RESTRACK_MR)
+ return fill_res_mr_entry(msg, res);
+
+ return 0;
+}
+
+int mlx5_ib_fill_stat_entry(struct sk_buff *msg,
+ struct rdma_restrack_entry *res)
+{
+ if (res->type == RDMA_RESTRACK_MR)
+ return fill_stat_mr_entry(msg, res);
+
+ return 0;
+}