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107 lines
3.1 KiB
107 lines
3.1 KiB
/* |
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* Copyright (c) 2006 Oracle. All rights reserved. |
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* |
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* This software is available to you under a choice of one of two |
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* licenses. You may choose to be licensed under the terms of the GNU |
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* General Public License (GPL) Version 2, available from the file |
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* COPYING in the main directory of this source tree, or the |
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* OpenIB.org BSD license below: |
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* |
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* Redistribution and use in source and binary forms, with or |
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* without modification, are permitted provided that the following |
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* conditions are met: |
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* |
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* - Redistributions of source code must retain the above |
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* copyright notice, this list of conditions and the following |
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* disclaimer. |
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* |
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* - Redistributions in binary form must reproduce the above |
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* copyright notice, this list of conditions and the following |
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* disclaimer in the documentation and/or other materials |
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* provided with the distribution. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS |
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN |
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
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* SOFTWARE. |
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* |
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*/ |
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#include <linux/percpu.h> |
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#include <linux/seq_file.h> |
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#include <linux/proc_fs.h> |
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#include "rds.h" |
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#include "ib.h" |
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DEFINE_PER_CPU_SHARED_ALIGNED(struct rds_ib_statistics, rds_ib_stats); |
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static const char *const rds_ib_stat_names[] = { |
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"ib_connect_raced", |
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"ib_listen_closed_stale", |
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"ib_evt_handler_call", |
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"ib_tasklet_call", |
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"ib_tx_cq_event", |
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"ib_tx_ring_full", |
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"ib_tx_throttle", |
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"ib_tx_sg_mapping_failure", |
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"ib_tx_stalled", |
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"ib_tx_credit_updates", |
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"ib_rx_cq_event", |
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"ib_rx_ring_empty", |
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"ib_rx_refill_from_cq", |
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"ib_rx_refill_from_thread", |
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"ib_rx_alloc_limit", |
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"ib_rx_total_frags", |
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"ib_rx_total_incs", |
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"ib_rx_credit_updates", |
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"ib_ack_sent", |
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"ib_ack_send_failure", |
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"ib_ack_send_delayed", |
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"ib_ack_send_piggybacked", |
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"ib_ack_received", |
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"ib_rdma_mr_8k_alloc", |
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"ib_rdma_mr_8k_free", |
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"ib_rdma_mr_8k_used", |
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"ib_rdma_mr_8k_pool_flush", |
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"ib_rdma_mr_8k_pool_wait", |
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"ib_rdma_mr_8k_pool_depleted", |
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"ib_rdma_mr_1m_alloc", |
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"ib_rdma_mr_1m_free", |
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"ib_rdma_mr_1m_used", |
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"ib_rdma_mr_1m_pool_flush", |
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"ib_rdma_mr_1m_pool_wait", |
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"ib_rdma_mr_1m_pool_depleted", |
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"ib_rdma_mr_8k_reused", |
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"ib_rdma_mr_1m_reused", |
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"ib_atomic_cswp", |
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"ib_atomic_fadd", |
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}; |
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unsigned int rds_ib_stats_info_copy(struct rds_info_iterator *iter, |
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unsigned int avail) |
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{ |
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struct rds_ib_statistics stats = {0, }; |
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uint64_t *src; |
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uint64_t *sum; |
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size_t i; |
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int cpu; |
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if (avail < ARRAY_SIZE(rds_ib_stat_names)) |
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goto out; |
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for_each_online_cpu(cpu) { |
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src = (uint64_t *)&(per_cpu(rds_ib_stats, cpu)); |
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sum = (uint64_t *)&stats; |
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for (i = 0; i < sizeof(stats) / sizeof(uint64_t); i++) |
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*(sum++) += *(src++); |
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} |
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rds_stats_info_copy(iter, (uint64_t *)&stats, rds_ib_stat_names, |
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ARRAY_SIZE(rds_ib_stat_names)); |
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out: |
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return ARRAY_SIZE(rds_ib_stat_names); |
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}
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