/*
 * 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",
	"s_ib_evt_handler_call",
	"ib_tasklet_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_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_8k_alloc",
	"ib_rdma_mr_8k_free",
	"ib_rdma_mr_8k_used",
	"ib_rdma_mr_8k_pool_flush",
	"ib_rdma_mr_8k_pool_wait",
	"ib_rdma_mr_8k_pool_depleted",
	"ib_rdma_mr_1m_alloc",
	"ib_rdma_mr_1m_free",
	"ib_rdma_mr_1m_used",
	"ib_rdma_mr_1m_pool_flush",
	"ib_rdma_mr_1m_pool_wait",
	"ib_rdma_mr_1m_pool_depleted",
	"ib_rdma_mr_8k_reused",
	"ib_rdma_mr_1m_reused",
	"ib_atomic_cswp",
	"ib_atomic_fadd",
};

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);
}
ass='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='7a7b5df84b6b4e5d599c7289526eed96541a0654'/><table><tr><td colspan='2'/></tr><tr><td class='label'>context:</td><td class='ctrl'><select name='context' onchange='this.form.submit();'><option value='1'>1</option><option value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Johan Hovold &lt;johan@kernel.org&gt;</td><td class='right'>2017-01-30 11:26:38 +0100</td></tr>
<tr><th>committer</th><td>Jiri Kosina &lt;jkosina@suse.cz&gt;</td><td class='right'>2017-01-31 12:59:32 +0100</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/decnet/dn_table.c?id=7a7b5df84b6b4e5d599c7289526eed96541a0654'>7a7b5df84b6b4e5d599c7289526eed96541a0654</a> (<a href='/cgit.cgi/linux/net-next.git/patch/net/decnet/dn_table.c?id=7a7b5df84b6b4e5d599c7289526eed96541a0654'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=7a7b5df84b6b4e5d599c7289526eed96541a0654'>cf7514c7ddf4410fe37ca9099a2785e1cf08fa7d</a> /<a href='/cgit.cgi/linux/net-next.git/tree/net/decnet/dn_table.c?id=7a7b5df84b6b4e5d599c7289526eed96541a0654'>net/decnet/dn_table.c</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/decnet/dn_table.c?id=877a021e08ccb6434718c0cc781fdf943c884cc0'>877a021e08ccb6434718c0cc781fdf943c884cc0</a> (<a href='/cgit.cgi/linux/net-next.git/diff/net/decnet/dn_table.c?id=7a7b5df84b6b4e5d599c7289526eed96541a0654&amp;id2=877a021e08ccb6434718c0cc781fdf943c884cc0'>diff</a>)</td></tr></table>
<div class='commit-subject'>HID: cp2112: fix sleep-while-atomic</div><div class='commit-msg'>A recent commit fixing DMA-buffers on stack added a shared transfer
buffer protected by a spinlock. This is broken as the USB HID request
callbacks can sleep. Fix this up by replacing the spinlock with a mutex.

Fixes: 1ffb3c40ffb5 ("HID: cp2112: make transfer buffers DMA capable")
Cc: stable &lt;stable@vger.kernel.org&gt;	# 4.9
Signed-off-by: Johan Hovold &lt;johan@kernel.org&gt;
Reviewed-by: Benjamin Tissoires &lt;benjamin.tissoires@redhat.com&gt;
Signed-off-by: Jiri Kosina &lt;jkosina@suse.cz&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=7a7b5df84b6b4e5d599c7289526eed96541a0654'>Diffstat</a> (limited to 'net/decnet/dn_table.c')</div><table summary='diffstat' class='diffstat'>