96 строки
2.8 KiB
C
96 строки
2.8 KiB
C
/*
|
|
* Copyright (c) 2006 Oracle. All rights reserved.
|
|
*
|
|
* This software is available to you under a choice of one of two
|
|
* licenses. You may choose to be licensed under the terms of the GNU
|
|
* General Public License (GPL) Version 2, available from the file
|
|
* COPYING in the main directory of this source tree, or the
|
|
* OpenIB.org BSD license below:
|
|
*
|
|
* Redistribution and use in source and binary forms, with or
|
|
* without modification, are permitted provided that the following
|
|
* conditions are met:
|
|
*
|
|
* - Redistributions of source code must retain the above
|
|
* copyright notice, this list of conditions and the following
|
|
* disclaimer.
|
|
*
|
|
* - Redistributions in binary form must reproduce the above
|
|
* copyright notice, this list of conditions and the following
|
|
* disclaimer in the documentation and/or other materials
|
|
* provided with the distribution.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
|
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
|
|
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
|
|
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
|
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
|
* SOFTWARE.
|
|
*
|
|
*/
|
|
#include <linux/percpu.h>
|
|
#include <linux/seq_file.h>
|
|
#include <linux/proc_fs.h>
|
|
|
|
#include "rds.h"
|
|
#include "iw.h"
|
|
|
|
DEFINE_PER_CPU(struct rds_iw_statistics, rds_iw_stats) ____cacheline_aligned;
|
|
|
|
static char *rds_iw_stat_names[] = {
|
|
"iw_connect_raced",
|
|
"iw_listen_closed_stale",
|
|
"iw_tx_cq_call",
|
|
"iw_tx_cq_event",
|
|
"iw_tx_ring_full",
|
|
"iw_tx_throttle",
|
|
"iw_tx_sg_mapping_failure",
|
|
"iw_tx_stalled",
|
|
"iw_tx_credit_updates",
|
|
"iw_rx_cq_call",
|
|
"iw_rx_cq_event",
|
|
"iw_rx_ring_empty",
|
|
"iw_rx_refill_from_cq",
|
|
"iw_rx_refill_from_thread",
|
|
"iw_rx_alloc_limit",
|
|
"iw_rx_credit_updates",
|
|
"iw_ack_sent",
|
|
"iw_ack_send_failure",
|
|
"iw_ack_send_delayed",
|
|
"iw_ack_send_piggybacked",
|
|
"iw_ack_received",
|
|
"iw_rdma_mr_alloc",
|
|
"iw_rdma_mr_free",
|
|
"iw_rdma_mr_used",
|
|
"iw_rdma_mr_pool_flush",
|
|
"iw_rdma_mr_pool_wait",
|
|
"iw_rdma_mr_pool_depleted",
|
|
};
|
|
|
|
unsigned int rds_iw_stats_info_copy(struct rds_info_iterator *iter,
|
|
unsigned int avail)
|
|
{
|
|
struct rds_iw_statistics stats = {0, };
|
|
uint64_t *src;
|
|
uint64_t *sum;
|
|
size_t i;
|
|
int cpu;
|
|
|
|
if (avail < ARRAY_SIZE(rds_iw_stat_names))
|
|
goto out;
|
|
|
|
for_each_online_cpu(cpu) {
|
|
src = (uint64_t *)&(per_cpu(rds_iw_stats, cpu));
|
|
sum = (uint64_t *)&stats;
|
|
for (i = 0; i < sizeof(stats) / sizeof(uint64_t); i++)
|
|
*(sum++) += *(src++);
|
|
}
|
|
|
|
rds_stats_info_copy(iter, (uint64_t *)&stats, rds_iw_stat_names,
|
|
ARRAY_SIZE(rds_iw_stat_names));
|
|
out:
|
|
return ARRAY_SIZE(rds_iw_stat_names);
|
|
}
|