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linux/include/trace/events/neigh.h

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trace: events: add a few neigh tracepoints The goal here is to trace neigh state changes covering all possible neigh update paths. Plus have a specific trace point in neigh_update to cover flags sent to neigh_update. Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-14 20:15:10 +03:00
#undef TRACE_SYSTEM
#define TRACE_SYSTEM neigh
#if !defined(_TRACE_NEIGH_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_NEIGH_H
#include <linux/skbuff.h>
#include <linux/netdevice.h>
#include <linux/tracepoint.h>
#include <net/neighbour.h>
#define neigh_state_str(state) \
__print_symbolic(state, \
{ NUD_INCOMPLETE, "incomplete" }, \
{ NUD_REACHABLE, "reachable" }, \
{ NUD_STALE, "stale" }, \
{ NUD_DELAY, "delay" }, \
{ NUD_PROBE, "probe" }, \
trace: events: neigh_update: print new state in string format Also, extend neigh_state_str to include neigh dummy states noarp and permanent Fixes: 9c03b282badb ("trace: events: add a few neigh tracepoints") Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-24 09:25:12 +03:00
{ NUD_FAILED, "failed" }, \
{ NUD_NOARP, "noarp" }, \
{ NUD_PERMANENT, "permanent"})
trace: events: add a few neigh tracepoints The goal here is to trace neigh state changes covering all possible neigh update paths. Plus have a specific trace point in neigh_update to cover flags sent to neigh_update. Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-14 20:15:10 +03:00
neighbor: Add tracepoint to __neigh_create Add tracepoint to __neigh_create to enable debugging of new entries. Signed-off-by: David Ahern <dsahern@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-22 22:22:21 +03:00
TRACE_EVENT(neigh_create,
TP_PROTO(struct neigh_table *tbl, struct net_device *dev,
const void *pkey, const struct neighbour *n,
bool exempt_from_gc),
TP_ARGS(tbl, dev, pkey, n, exempt_from_gc),
TP_STRUCT__entry(
__field(u32, family)
neighbor: tracing: Have neigh_create event use __string() The dev field of the neigh_create event uses __dynamic_array() with a fixed size, which defeats the purpose of __dynamic_array(). Looking at the logic, as it already uses __assign_str(), just use the same logic in __string to create the size needed. It appears that because "dev" can be NULL, it needs the check. But __string() can have the same checks as __assign_str() so use them there too. Link: https://lkml.kernel.org/r/20220705183741.35387e3f@rorschach.local.home Cc: David Ahern <dsahern@gmail.com> Cc: David S. Miller <davem@davemloft.net> Cc: netdev@vger.kernel.org Acked-by: Jakub Kicinski <kuba@kernel.org> Reviewed-by: David Ahern <dsahern@kernel.org> Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2022-07-06 01:37:41 +03:00
__string(dev, dev ? dev->name : "NULL")
neighbor: Add tracepoint to __neigh_create Add tracepoint to __neigh_create to enable debugging of new entries. Signed-off-by: David Ahern <dsahern@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-22 22:22:21 +03:00
__field(int, entries)
__field(u8, created)
__field(u8, gc_exempt)
__array(u8, primary_key4, 4)
__array(u8, primary_key6, 16)
),
TP_fast_assign(
struct in6_addr *pin6;
__be32 *p32;
__entry->family = tbl->family;
__assign_str(dev, (dev ? dev->name : "NULL"));
__entry->entries = atomic_read(&tbl->gc_entries);
__entry->created = n != NULL;
__entry->gc_exempt = exempt_from_gc;
pin6 = (struct in6_addr *)__entry->primary_key6;
p32 = (__be32 *)__entry->primary_key4;
if (tbl->family == AF_INET)
*p32 = *(__be32 *)pkey;
else
*p32 = 0;
#if IS_ENABLED(CONFIG_IPV6)
if (tbl->family == AF_INET6) {
pin6 = (struct in6_addr *)__entry->primary_key6;
*pin6 = *(struct in6_addr *)pkey;
}
#endif
),
TP_printk("family %d dev %s entries %d primary_key4 %pI4 primary_key6 %pI6c created %d gc_exempt %d",
__entry->family, __get_str(dev), __entry->entries,
__entry->primary_key4, __entry->primary_key6,
__entry->created, __entry->gc_exempt)
);
trace: events: add a few neigh tracepoints The goal here is to trace neigh state changes covering all possible neigh update paths. Plus have a specific trace point in neigh_update to cover flags sent to neigh_update. Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-14 20:15:10 +03:00
TRACE_EVENT(neigh_update,
TP_PROTO(struct neighbour *n, const u8 *lladdr, u8 new,
u32 flags, u32 nlmsg_pid),
TP_ARGS(n, lladdr, new, flags, nlmsg_pid),
TP_STRUCT__entry(
__field(u32, family)
__string(dev, (n->dev ? n->dev->name : "NULL"))
__array(u8, lladdr, MAX_ADDR_LEN)
__field(u8, lladdr_len)
__field(u8, flags)
__field(u8, nud_state)
__field(u8, type)
__field(u8, dead)
__field(int, refcnt)
__array(__u8, primary_key4, 4)
__array(__u8, primary_key6, 16)
__field(unsigned long, confirmed)
__field(unsigned long, updated)
__field(unsigned long, used)
__array(u8, new_lladdr, MAX_ADDR_LEN)
__field(u8, new_state)
__field(u32, update_flags)
__field(u32, pid)
),
TP_fast_assign(
int lladdr_len = (n->dev ? n->dev->addr_len : MAX_ADDR_LEN);
struct in6_addr *pin6;
__be32 *p32;
__entry->family = n->tbl->family;
__assign_str(dev, (n->dev ? n->dev->name : "NULL"));
__entry->lladdr_len = lladdr_len;
memcpy(__entry->lladdr, n->ha, lladdr_len);
__entry->flags = n->flags;
__entry->nud_state = n->nud_state;
__entry->type = n->type;
__entry->dead = n->dead;
__entry->refcnt = refcount_read(&n->refcnt);
pin6 = (struct in6_addr *)__entry->primary_key6;
p32 = (__be32 *)__entry->primary_key4;
if (n->tbl->family == AF_INET)
*p32 = *(__be32 *)n->primary_key;
else
*p32 = 0;
#if IS_ENABLED(CONFIG_IPV6)
if (n->tbl->family == AF_INET6) {
pin6 = (struct in6_addr *)__entry->primary_key6;
*pin6 = *(struct in6_addr *)n->primary_key;
} else
#endif
{
ipv6_addr_set_v4mapped(*p32, pin6);
}
__entry->confirmed = n->confirmed;
__entry->updated = n->updated;
__entry->used = n->used;
if (lladdr)
memcpy(__entry->new_lladdr, lladdr, lladdr_len);
__entry->new_state = new;
__entry->update_flags = flags;
__entry->pid = nlmsg_pid;
),
TP_printk("family %d dev %s lladdr %s flags %02x nud_state %s type %02x "
"dead %d refcnt %d primary_key4 %pI4 primary_key6 %pI6c "
"confirmed %lu updated %lu used %lu new_lladdr %s "
trace: events: neigh_update: print new state in string format Also, extend neigh_state_str to include neigh dummy states noarp and permanent Fixes: 9c03b282badb ("trace: events: add a few neigh tracepoints") Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-24 09:25:12 +03:00
"new_state %s update_flags %02x pid %d",
trace: events: add a few neigh tracepoints The goal here is to trace neigh state changes covering all possible neigh update paths. Plus have a specific trace point in neigh_update to cover flags sent to neigh_update. Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-14 20:15:10 +03:00
__entry->family, __get_str(dev),
__print_hex_str(__entry->lladdr, __entry->lladdr_len),
__entry->flags, neigh_state_str(__entry->nud_state),
__entry->type, __entry->dead, __entry->refcnt,
__entry->primary_key4, __entry->primary_key6,
__entry->confirmed, __entry->updated, __entry->used,
__print_hex_str(__entry->new_lladdr, __entry->lladdr_len),
trace: events: neigh_update: print new state in string format Also, extend neigh_state_str to include neigh dummy states noarp and permanent Fixes: 9c03b282badb ("trace: events: add a few neigh tracepoints") Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-24 09:25:12 +03:00
neigh_state_str(__entry->new_state),
trace: events: add a few neigh tracepoints The goal here is to trace neigh state changes covering all possible neigh update paths. Plus have a specific trace point in neigh_update to cover flags sent to neigh_update. Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-14 20:15:10 +03:00
__entry->update_flags, __entry->pid)
);
DECLARE_EVENT_CLASS(neigh__update,
TP_PROTO(struct neighbour *n, int err),
TP_ARGS(n, err),
TP_STRUCT__entry(
__field(u32, family)
__string(dev, (n->dev ? n->dev->name : "NULL"))
__array(u8, lladdr, MAX_ADDR_LEN)
__field(u8, lladdr_len)
__field(u8, flags)
__field(u8, nud_state)
__field(u8, type)
__field(u8, dead)
__field(int, refcnt)
__array(__u8, primary_key4, 4)
__array(__u8, primary_key6, 16)
__field(unsigned long, confirmed)
__field(unsigned long, updated)
__field(unsigned long, used)
__field(u32, err)
),
TP_fast_assign(
int lladdr_len = (n->dev ? n->dev->addr_len : MAX_ADDR_LEN);
struct in6_addr *pin6;
__be32 *p32;
__entry->family = n->tbl->family;
__assign_str(dev, (n->dev ? n->dev->name : "NULL"));
__entry->lladdr_len = lladdr_len;
memcpy(__entry->lladdr, n->ha, lladdr_len);
__entry->flags = n->flags;
__entry->nud_state = n->nud_state;
__entry->type = n->type;
__entry->dead = n->dead;
__entry->refcnt = refcount_read(&n->refcnt);
pin6 = (struct in6_addr *)__entry->primary_key6;
p32 = (__be32 *)__entry->primary_key4;
if (n->tbl->family == AF_INET)
*p32 = *(__be32 *)n->primary_key;
else
*p32 = 0;
#if IS_ENABLED(CONFIG_IPV6)
if (n->tbl->family == AF_INET6) {
pin6 = (struct in6_addr *)__entry->primary_key6;
*pin6 = *(struct in6_addr *)n->primary_key;
} else
#endif
{
ipv6_addr_set_v4mapped(*p32, pin6);
}
__entry->confirmed = n->confirmed;
__entry->updated = n->updated;
__entry->used = n->used;
__entry->err = err;
),
TP_printk("family %d dev %s lladdr %s flags %02x nud_state %s type %02x "
"dead %d refcnt %d primary_key4 %pI4 primary_key6 %pI6c "
"confirmed %lu updated %lu used %lu err %d",
__entry->family, __get_str(dev),
__print_hex_str(__entry->lladdr, __entry->lladdr_len),
__entry->flags, neigh_state_str(__entry->nud_state),
__entry->type, __entry->dead, __entry->refcnt,
__entry->primary_key4, __entry->primary_key6,
__entry->confirmed, __entry->updated, __entry->used,
__entry->err)
);
DEFINE_EVENT(neigh__update, neigh_update_done,
TP_PROTO(struct neighbour *neigh, int err),
TP_ARGS(neigh, err)
);
DEFINE_EVENT(neigh__update, neigh_timer_handler,
TP_PROTO(struct neighbour *neigh, int err),
TP_ARGS(neigh, err)
);
DEFINE_EVENT(neigh__update, neigh_event_send_done,
TP_PROTO(struct neighbour *neigh, int err),
TP_ARGS(neigh, err)
);
DEFINE_EVENT(neigh__update, neigh_event_send_dead,
TP_PROTO(struct neighbour *neigh, int err),
TP_ARGS(neigh, err)
);
DEFINE_EVENT(neigh__update, neigh_cleanup_and_release,
TP_PROTO(struct neighbour *neigh, int rc),
TP_ARGS(neigh, rc)
);
#endif /* _TRACE_NEIGH_H */
/* This part must be outside protection */
#include <trace/define_trace.h>
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