#undef TRACE_SYSTEM
#define TRACE_SYSTEM gpio

#ifndef CONFIG_TRACING_EVENTS_GPIO
#define NOTRACE
#endif

#if !defined(_TRACE_GPIO_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_GPIO_H

#include <linux/tracepoint.h>

TRACE_EVENT(gpio_direction,

	TP_PROTO(unsigned gpio, int in, int err),

	TP_ARGS(gpio, in, err),

	TP_STRUCT__entry(
		__field(unsigned, gpio)
		__field(int, in)
		__field(int, err)
	),

	TP_fast_assign(
		__entry->gpio = gpio;
		__entry->in = in;
		__entry->err = err;
	),

	TP_printk("%u %3s (%d)", __entry->gpio,
		__entry->in ? "in" : "out", __entry->err)
);

TRACE_EVENT(gpio_value,

	TP_PROTO(unsigned gpio, int get, int value),

	TP_ARGS(gpio, get, value),

	TP_STRUCT__entry(
		__field(unsigned, gpio)
		__field(int, get)
		__field(int, value)
	),

	TP_fast_assign(
		__entry->gpio = gpio;
		__entry->get = get;
		__entry->value = value;
	),

	TP_printk("%u %3s %d", __entry->gpio,
		__entry->get ? "get" : "set", __entry->value)
);

#endif /* if !defined(_TRACE_GPIO_H) || defined(TRACE_HEADER_MULTI_READ) */

/* This part must be outside protection */
#include <trace/define_trace.h>
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/log/?id=52e01b84a244473074fc0612c169e2e043d58b01&amp;showmsg=1'>root</a>/<a href='/cgit.cgi/linux/net-next.git/log/net?id=52e01b84a244473074fc0612c169e2e043d58b01&amp;showmsg=1'>net</a>/<a href='/cgit.cgi/linux/net-next.git/log/net/bridge?id=52e01b84a244473074fc0612c169e2e043d58b01&amp;showmsg=1'>bridge</a>/<a href='/cgit.cgi/linux/net-next.git/log/net/bridge/Makefile?id=52e01b84a244473074fc0612c169e2e043d58b01&amp;showmsg=1'>Makefile</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/cgit.cgi/linux/net-next.git/log/net/bridge/Makefile?id=52e01b84a244473074fc0612c169e2e043d58b01'>Collapse</a>)</th><th class='left'>Author</th><th class='left'>Files</th><th class='left'>Lines</th></tr>
<tr class='logheader'><td><span title='2017-02-03 15:21:22 -0500'>2017-02-03</span></td><td class='logsubject'><a href='/cgit.cgi/linux/net-next.git/commit/net/bridge/Makefile?id=efa5356b0d9753b9d7e63e41459eba106cce30f3'>bridge: per vlan dst_metadata netlink support</a></td><td>Roopa Prabhu</td><td>1</td><td><span class='deletions'>-2</span>/<span class='insertions'>+3</span></td></tr>
<tr class='nohover-highlight'><td/><td colspan='5' class='logmsg'>
This patch adds support to attach per vlan tunnel info dst
metadata. This enables bridge driver to map vlan to tunnel_info
at ingress and egress. It uses the kernel dst_metadata infrastructure.

The initial use case is vlan to vni bridging, but the api is generic
to extend to any tunnel_info in the future:
    - Uapi to configure/unconfigure/dump per vlan tunnel data
    - netlink functions to configure vlan and tunnel_info mapping
    - Introduces bridge port flag BR_LWT_VLAN to enable attach/detach
    dst_metadata to bridged packets on ports. off by default.
    - changes to existing code is mainly refactor some existing vlan
    handling netlink code + hooks for new vlan tunnel code
    - I have kept the vlan tunnel code isolated in separate files.
    - most of the netlink vlan tunnel code is handling of vlan-tunid
    ranges (follows the vlan range handling code). To conserve space
    vlan-tunid by default are always dumped in ranges if applicable.

Use case:
example use for this is a vxlan bridging gateway or vtep
which maps vlans to vn-segments (or vnis).

iproute2 example (patched and pruned iproute2 output to just show
relevant fdb entries):
example shows same host mac learnt on two vni's and
vlan 100 maps to vni 1000, vlan 101 maps to vni 1001

before (netdev per vni):
$bridge fdb show | grep "00:02:00:00:00:03"
00:02:00:00:00:03 dev vxlan1001 vlan 101 master bridge
00:02:00:00:00:03 dev vxlan1001 dst 12.0.0.8 self
00:02:00:00:00:03 dev vxlan1000 vlan 100 master bridge
00:02:00:00:00:03 dev vxlan1000 dst 12.0.0.8 self

after this patch with collect metdata in bridged mode (single netdev):
$bridge fdb show | grep "00:02:00:00:00:03"
00:02:00:00:00:03 dev vxlan0 vlan 101 master bridge
00:02:00:00:00:03 dev vxlan0 src_vni 1001 dst 12.0.0.8 self
00:02:00:00:00:03 dev vxlan0 vlan 100 master bridge
00:02:00:00:00:03 dev vxlan0 src_vni 1000 dst 12.0.0.8 self

CC: Nikolay Aleksandrov &lt;nikolay@cumulusnetworks.com&gt;
Signed-off-by: Roopa Prabhu &lt;roopa@cumulusnetworks.com&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;


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