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v5.9
  1/*
  2 * Copyright (c) 2006 Oracle.  All rights reserved.
  3 *
  4 * This software is available to you under a choice of one of two
  5 * licenses.  You may choose to be licensed under the terms of the GNU
  6 * General Public License (GPL) Version 2, available from the file
  7 * COPYING in the main directory of this source tree, or the
  8 * OpenIB.org BSD license below:
  9 *
 10 *     Redistribution and use in source and binary forms, with or
 11 *     without modification, are permitted provided that the following
 12 *     conditions are met:
 13 *
 14 *      - Redistributions of source code must retain the above
 15 *        copyright notice, this list of conditions and the following
 16 *        disclaimer.
 17 *
 18 *      - Redistributions in binary form must reproduce the above
 19 *        copyright notice, this list of conditions and the following
 20 *        disclaimer in the documentation and/or other materials
 21 *        provided with the distribution.
 22 *
 23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
 27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
 28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 30 * SOFTWARE.
 31 *
 32 */
 33#include <linux/percpu.h>
 34#include <linux/seq_file.h>
 35#include <linux/proc_fs.h>
 36
 37#include "rds.h"
 38#include "ib.h"
 39
 40DEFINE_PER_CPU_SHARED_ALIGNED(struct rds_ib_statistics, rds_ib_stats);
 41
 42static const char *const rds_ib_stat_names[] = {
 43	"ib_connect_raced",
 44	"ib_listen_closed_stale",
 45	"ib_evt_handler_call",
 46	"ib_tasklet_call",
 47	"ib_tx_cq_event",
 48	"ib_tx_ring_full",
 49	"ib_tx_throttle",
 50	"ib_tx_sg_mapping_failure",
 51	"ib_tx_stalled",
 52	"ib_tx_credit_updates",
 53	"ib_rx_cq_event",
 54	"ib_rx_ring_empty",
 55	"ib_rx_refill_from_cq",
 56	"ib_rx_refill_from_thread",
 57	"ib_rx_alloc_limit",
 58	"ib_rx_total_frags",
 59	"ib_rx_total_incs",
 60	"ib_rx_credit_updates",
 61	"ib_ack_sent",
 62	"ib_ack_send_failure",
 63	"ib_ack_send_delayed",
 64	"ib_ack_send_piggybacked",
 65	"ib_ack_received",
 66	"ib_rdma_mr_8k_alloc",
 67	"ib_rdma_mr_8k_free",
 68	"ib_rdma_mr_8k_used",
 69	"ib_rdma_mr_8k_pool_flush",
 70	"ib_rdma_mr_8k_pool_wait",
 71	"ib_rdma_mr_8k_pool_depleted",
 72	"ib_rdma_mr_1m_alloc",
 73	"ib_rdma_mr_1m_free",
 74	"ib_rdma_mr_1m_used",
 75	"ib_rdma_mr_1m_pool_flush",
 76	"ib_rdma_mr_1m_pool_wait",
 77	"ib_rdma_mr_1m_pool_depleted",
 78	"ib_rdma_mr_8k_reused",
 79	"ib_rdma_mr_1m_reused",
 80	"ib_atomic_cswp",
 81	"ib_atomic_fadd",
 82};
 83
 84unsigned int rds_ib_stats_info_copy(struct rds_info_iterator *iter,
 85				    unsigned int avail)
 86{
 87	struct rds_ib_statistics stats = {0, };
 88	uint64_t *src;
 89	uint64_t *sum;
 90	size_t i;
 91	int cpu;
 92
 93	if (avail < ARRAY_SIZE(rds_ib_stat_names))
 94		goto out;
 95
 96	for_each_online_cpu(cpu) {
 97		src = (uint64_t *)&(per_cpu(rds_ib_stats, cpu));
 98		sum = (uint64_t *)&stats;
 99		for (i = 0; i < sizeof(stats) / sizeof(uint64_t); i++)
100			*(sum++) += *(src++);
101	}
102
103	rds_stats_info_copy(iter, (uint64_t *)&stats, rds_ib_stat_names,
104			    ARRAY_SIZE(rds_ib_stat_names));
105out:
106	return ARRAY_SIZE(rds_ib_stat_names);
107}
v6.13.7
  1/*
  2 * Copyright (c) 2006 Oracle.  All rights reserved.
  3 *
  4 * This software is available to you under a choice of one of two
  5 * licenses.  You may choose to be licensed under the terms of the GNU
  6 * General Public License (GPL) Version 2, available from the file
  7 * COPYING in the main directory of this source tree, or the
  8 * OpenIB.org BSD license below:
  9 *
 10 *     Redistribution and use in source and binary forms, with or
 11 *     without modification, are permitted provided that the following
 12 *     conditions are met:
 13 *
 14 *      - Redistributions of source code must retain the above
 15 *        copyright notice, this list of conditions and the following
 16 *        disclaimer.
 17 *
 18 *      - Redistributions in binary form must reproduce the above
 19 *        copyright notice, this list of conditions and the following
 20 *        disclaimer in the documentation and/or other materials
 21 *        provided with the distribution.
 22 *
 23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
 27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
 28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 30 * SOFTWARE.
 31 *
 32 */
 33#include <linux/percpu.h>
 34#include <linux/seq_file.h>
 35#include <linux/proc_fs.h>
 36
 37#include "rds.h"
 38#include "ib.h"
 39
 40DEFINE_PER_CPU_SHARED_ALIGNED(struct rds_ib_statistics, rds_ib_stats);
 41
 42static const char *const rds_ib_stat_names[] = {
 43	"ib_connect_raced",
 44	"ib_listen_closed_stale",
 45	"ib_evt_handler_call",
 46	"ib_tasklet_call",
 47	"ib_tx_cq_event",
 48	"ib_tx_ring_full",
 49	"ib_tx_throttle",
 50	"ib_tx_sg_mapping_failure",
 51	"ib_tx_stalled",
 52	"ib_tx_credit_updates",
 53	"ib_rx_cq_event",
 54	"ib_rx_ring_empty",
 55	"ib_rx_refill_from_cq",
 56	"ib_rx_refill_from_thread",
 57	"ib_rx_alloc_limit",
 58	"ib_rx_total_frags",
 59	"ib_rx_total_incs",
 60	"ib_rx_credit_updates",
 61	"ib_ack_sent",
 62	"ib_ack_send_failure",
 63	"ib_ack_send_delayed",
 64	"ib_ack_send_piggybacked",
 65	"ib_ack_received",
 66	"ib_rdma_mr_8k_alloc",
 67	"ib_rdma_mr_8k_free",
 68	"ib_rdma_mr_8k_used",
 69	"ib_rdma_mr_8k_pool_flush",
 70	"ib_rdma_mr_8k_pool_wait",
 71	"ib_rdma_mr_8k_pool_depleted",
 72	"ib_rdma_mr_1m_alloc",
 73	"ib_rdma_mr_1m_free",
 74	"ib_rdma_mr_1m_used",
 75	"ib_rdma_mr_1m_pool_flush",
 76	"ib_rdma_mr_1m_pool_wait",
 77	"ib_rdma_mr_1m_pool_depleted",
 78	"ib_rdma_mr_8k_reused",
 79	"ib_rdma_mr_1m_reused",
 80	"ib_atomic_cswp",
 81	"ib_atomic_fadd",
 82};
 83
 84unsigned int rds_ib_stats_info_copy(struct rds_info_iterator *iter,
 85				    unsigned int avail)
 86{
 87	struct rds_ib_statistics stats = {0, };
 88	uint64_t *src;
 89	uint64_t *sum;
 90	size_t i;
 91	int cpu;
 92
 93	if (avail < ARRAY_SIZE(rds_ib_stat_names))
 94		goto out;
 95
 96	for_each_online_cpu(cpu) {
 97		src = (uint64_t *)&(per_cpu(rds_ib_stats, cpu));
 98		sum = (uint64_t *)&stats;
 99		for (i = 0; i < sizeof(stats) / sizeof(uint64_t); i++)
100			*(sum++) += *(src++);
101	}
102
103	rds_stats_info_copy(iter, (uint64_t *)&stats, rds_ib_stat_names,
104			    ARRAY_SIZE(rds_ib_stat_names));
105out:
106	return ARRAY_SIZE(rds_ib_stat_names);
107}