kernel-ark/net/rds/ib_stats.c
Linus Torvalds ada3fa1505 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu: (46 commits)
  powerpc64: convert to dynamic percpu allocator
  sparc64: use embedding percpu first chunk allocator
  percpu: kill lpage first chunk allocator
  x86,percpu: use embedding for 64bit NUMA and page for 32bit NUMA
  percpu: update embedding first chunk allocator to handle sparse units
  percpu: use group information to allocate vmap areas sparsely
  vmalloc: implement pcpu_get_vm_areas()
  vmalloc: separate out insert_vmalloc_vm()
  percpu: add chunk->base_addr
  percpu: add pcpu_unit_offsets[]
  percpu: introduce pcpu_alloc_info and pcpu_group_info
  percpu: move pcpu_lpage_build_unit_map() and pcpul_lpage_dump_cfg() upward
  percpu: add @align to pcpu_fc_alloc_fn_t
  percpu: make @dyn_size mandatory for pcpu_setup_first_chunk()
  percpu: drop @static_size from first chunk allocators
  percpu: generalize first chunk allocator selection
  percpu: build first chunk allocators selectively
  percpu: rename 4k first chunk allocator to page
  percpu: improve boot messages
  percpu: fix pcpu_reclaim() locking
  ...

Fix trivial conflict as by Tejun Heo in kernel/sched.c
2009-09-15 09:39:44 -07:00

96 lines
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 "ib.h"
DEFINE_PER_CPU_SHARED_ALIGNED(struct rds_ib_statistics, rds_ib_stats);
static const char *const rds_ib_stat_names[] = {
"ib_connect_raced",
"ib_listen_closed_stale",
"ib_tx_cq_call",
"ib_tx_cq_event",
"ib_tx_ring_full",
"ib_tx_throttle",
"ib_tx_sg_mapping_failure",
"ib_tx_stalled",
"ib_tx_credit_updates",
"ib_rx_cq_call",
"ib_rx_cq_event",
"ib_rx_ring_empty",
"ib_rx_refill_from_cq",
"ib_rx_refill_from_thread",
"ib_rx_alloc_limit",
"ib_rx_credit_updates",
"ib_ack_sent",
"ib_ack_send_failure",
"ib_ack_send_delayed",
"ib_ack_send_piggybacked",
"ib_ack_received",
"ib_rdma_mr_alloc",
"ib_rdma_mr_free",
"ib_rdma_mr_used",
"ib_rdma_mr_pool_flush",
"ib_rdma_mr_pool_wait",
"ib_rdma_mr_pool_depleted",
};
unsigned int rds_ib_stats_info_copy(struct rds_info_iterator *iter,
unsigned int avail)
{
struct rds_ib_statistics stats = {0, };
uint64_t *src;
uint64_t *sum;
size_t i;
int cpu;
if (avail < ARRAY_SIZE(rds_ib_stat_names))
goto out;
for_each_online_cpu(cpu) {
src = (uint64_t *)&(per_cpu(rds_ib_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_ib_stat_names,
ARRAY_SIZE(rds_ib_stat_names));
out:
return ARRAY_SIZE(rds_ib_stat_names);
}