From 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 Mon Sep 17 00:00:00 2001 From: Yunhong Jiang Date: Tue, 4 Aug 2015 12:17:53 -0700 Subject: Add the rt linux 4.1.3-rt3 as base Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang --- kernel/net/rds/iw_stats.c | 95 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 95 insertions(+) create mode 100644 kernel/net/rds/iw_stats.c (limited to 'kernel/net/rds/iw_stats.c') diff --git a/kernel/net/rds/iw_stats.c b/kernel/net/rds/iw_stats.c new file mode 100644 index 000000000..5fe67f6a1 --- /dev/null +++ b/kernel/net/rds/iw_stats.c @@ -0,0 +1,95 @@ +/* + * 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 +#include +#include + +#include "rds.h" +#include "iw.h" + +DEFINE_PER_CPU_SHARED_ALIGNED(struct rds_iw_statistics, rds_iw_stats); + +static const char *const 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); +} -- cgit 1.2.3-korg