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Diffstat (limited to 'drivers/infiniband/ulp/rtrs/rtrs-srv-stats.c')
-rw-r--r--drivers/infiniband/ulp/rtrs/rtrs-srv-stats.c51
1 files changed, 51 insertions, 0 deletions
diff --git a/drivers/infiniband/ulp/rtrs/rtrs-srv-stats.c b/drivers/infiniband/ulp/rtrs/rtrs-srv-stats.c
new file mode 100644
index 000000000..2aff1213a
--- /dev/null
+++ b/drivers/infiniband/ulp/rtrs/rtrs-srv-stats.c
@@ -0,0 +1,51 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * RDMA Transport Layer
+ *
+ * Copyright (c) 2014 - 2018 ProfitBricks GmbH. All rights reserved.
+ * Copyright (c) 2018 - 2019 1&1 IONOS Cloud GmbH. All rights reserved.
+ * Copyright (c) 2019 - 2020 1&1 IONOS SE. All rights reserved.
+ */
+#undef pr_fmt
+#define pr_fmt(fmt) KBUILD_MODNAME " L" __stringify(__LINE__) ": " fmt
+
+#include "rtrs-srv.h"
+
+int rtrs_srv_reset_rdma_stats(struct rtrs_srv_stats *stats, bool enable)
+{
+ if (enable) {
+ int cpu;
+ struct rtrs_srv_stats_rdma_stats *r;
+
+ for_each_possible_cpu(cpu) {
+ r = per_cpu_ptr(stats->rdma_stats, cpu);
+ memset(r, 0, sizeof(*r));
+ }
+
+ return 0;
+ }
+
+ return -EINVAL;
+}
+
+ssize_t rtrs_srv_stats_rdma_to_str(struct rtrs_srv_stats *stats, char *page)
+{
+ int cpu;
+ struct rtrs_srv_stats_rdma_stats sum;
+ struct rtrs_srv_stats_rdma_stats *r;
+
+ memset(&sum, 0, sizeof(sum));
+
+ for_each_possible_cpu(cpu) {
+ r = per_cpu_ptr(stats->rdma_stats, cpu);
+
+ sum.dir[READ].cnt += r->dir[READ].cnt;
+ sum.dir[READ].size_total += r->dir[READ].size_total;
+ sum.dir[WRITE].cnt += r->dir[WRITE].cnt;
+ sum.dir[WRITE].size_total += r->dir[WRITE].size_total;
+ }
+
+ return sysfs_emit(page, "%llu %llu %llu %llu\n",
+ sum.dir[READ].cnt, sum.dir[READ].size_total,
+ sum.dir[WRITE].cnt, sum.dir[WRITE].size_total);
+}