cregit-Linux how code gets into the kernel

Release 4.9 include/trace/events/rxrpc.h

/* AF_RXRPC tracepoints
 *
 * Copyright (C) 2016 Red Hat, Inc. All Rights Reserved.
 * Written by David Howells (dhowells@redhat.com)
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public Licence
 * as published by the Free Software Foundation; either version
 * 2 of the Licence, or (at your option) any later version.
 */

#undef TRACE_SYSTEM

#define TRACE_SYSTEM rxrpc

#if !defined(_TRACE_RXRPC_H) || defined(TRACE_HEADER_MULTI_READ)

#define _TRACE_RXRPC_H

#include <linux/tracepoint.h>

TRACE_EVENT(rxrpc_conn,
	    TP_PROTO(struct rxrpc_connection *conn, enum rxrpc_conn_trace op,
                     int usage, const void *where),

	    TP_ARGS(conn, op, usage, where),

	    TP_STRUCT__entry(
                    __field(struct rxrpc_connection *,  conn            )
                    __field(int,                        op              )
                    __field(int,                        usage           )
                    __field(const void *,               where           )
                             ),

	    TP_fast_assign(
                    __entry->conn = conn;
                    __entry->op = op;
                    __entry->usage = usage;
                    __entry->where = where;
                           ),

	    TP_printk("C=%p %s u=%d sp=%pSR",
                      __entry->conn,
                      rxrpc_conn_traces[__entry->op],
                      __entry->usage,
                      __entry->where)
	    );

TRACE_EVENT(rxrpc_client,
	    TP_PROTO(struct rxrpc_connection *conn, int channel,
                     enum rxrpc_client_trace op),

	    TP_ARGS(conn, channel, op),

	    TP_STRUCT__entry(
                    __field(struct rxrpc_connection *,  conn            )
                    __field(u32,                        cid             )
                    __field(int,                        channel         )
                    __field(int,                        usage           )
                    __field(enum rxrpc_client_trace,    op              )
                    __field(enum rxrpc_conn_cache_state, cs             )
                             ),

	    TP_fast_assign(
                    __entry->conn = conn;
                    __entry->channel = channel;
                    __entry->usage = atomic_read(&conn->usage);
                    __entry->op = op;
                    __entry->cid = conn->proto.cid;
                    __entry->cs = conn->cache_state;
                           ),

	    TP_printk("C=%p h=%2d %s %s i=%08x u=%d",
                      __entry->conn,
                      __entry->channel,
                      rxrpc_client_traces[__entry->op],
                      rxrpc_conn_cache_states[__entry->cs],
                      __entry->cid,
                      __entry->usage)
	    );

TRACE_EVENT(rxrpc_call,
	    TP_PROTO(struct rxrpc_call *call, enum rxrpc_call_trace op,
                     int usage, const void *where, const void *aux),

	    TP_ARGS(call, op, usage, where, aux),

	    TP_STRUCT__entry(
                    __field(struct rxrpc_call *,        call            )
                    __field(int,                        op              )
                    __field(int,                        usage           )
                    __field(const void *,               where           )
                    __field(const void *,               aux             )
                             ),

	    TP_fast_assign(
                    __entry->call = call;
                    __entry->op = op;
                    __entry->usage = usage;
                    __entry->where = where;
                    __entry->aux = aux;
                           ),

	    TP_printk("c=%p %s u=%d sp=%pSR a=%p",
                      __entry->call,
                      rxrpc_call_traces[__entry->op],
                      __entry->usage,
                      __entry->where,
                      __entry->aux)
	    );

TRACE_EVENT(rxrpc_skb,
	    TP_PROTO(struct sk_buff *skb, enum rxrpc_skb_trace op,
                     int usage, int mod_count, const void *where),

	    TP_ARGS(skb, op, usage, mod_count, where),

	    TP_STRUCT__entry(
                    __field(struct sk_buff *,           skb             )
                    __field(enum rxrpc_skb_trace,       op              )
                    __field(int,                        usage           )
                    __field(int,                        mod_count       )
                    __field(const void *,               where           )
                             ),

	    TP_fast_assign(
                    __entry->skb = skb;
                    __entry->op = op;
                    __entry->usage = usage;
                    __entry->mod_count = mod_count;
                    __entry->where = where;
                           ),

	    TP_printk("s=%p %s u=%d m=%d p=%pSR",
                      __entry->skb,
                      rxrpc_skb_traces[__entry->op],
                      __entry->usage,
                      __entry->mod_count,
                      __entry->where)
	    );

TRACE_EVENT(rxrpc_rx_packet,
	    TP_PROTO(struct rxrpc_skb_priv *sp),

	    TP_ARGS(sp),

	    TP_STRUCT__entry(
                    __field_struct(struct rxrpc_host_header,    hdr             )
                             ),

	    TP_fast_assign(
                    memcpy(&__entry->hdr, &sp->hdr, sizeof(__entry->hdr));
                           ),

	    TP_printk("%08x:%08x:%08x:%04x %08x %08x %02x %02x %s",
                      __entry->hdr.epoch, __entry->hdr.cid,
                      __entry->hdr.callNumber, __entry->hdr.serviceId,
                      __entry->hdr.serial, __entry->hdr.seq,
                      __entry->hdr.type, __entry->hdr.flags,
                      __entry->hdr.type <= 15 ? rxrpc_pkts[__entry->hdr.type] : "?UNK")
	    );

TRACE_EVENT(rxrpc_rx_done,
	    TP_PROTO(int result, int abort_code),

	    TP_ARGS(result, abort_code),

	    TP_STRUCT__entry(
                    __field(int,                        result          )
                    __field(int,                        abort_code      )
                             ),

	    TP_fast_assign(
                    __entry->result = result;
                    __entry->abort_code = abort_code;
                           ),

	    TP_printk("r=%d a=%d", __entry->result, __entry->abort_code)
	    );

TRACE_EVENT(rxrpc_abort,
	    TP_PROTO(const char *why, u32 cid, u32 call_id, rxrpc_seq_t seq,
                     int abort_code, int error),

	    TP_ARGS(why, cid, call_id, seq, abort_code, error),

	    TP_STRUCT__entry(
                    __array(char,                       why, 4		)
                    __field(u32,                        cid             )
                    __field(u32,                        call_id         )
                    __field(rxrpc_seq_t,                seq             )
                    __field(int,                        abort_code      )
                    __field(int,                        error           )
                             ),

	    TP_fast_assign(
                    memcpy(__entry->why, why, 4);
                    __entry->cid = cid;
                    __entry->call_id = call_id;
                    __entry->abort_code = abort_code;
                    __entry->error = error;
                    __entry->seq = seq;
                           ),

	    TP_printk("%08x:%08x s=%u a=%d e=%d %s",
                      __entry->cid, __entry->call_id, __entry->seq,
                      __entry->abort_code, __entry->error, __entry->why)
	    );

TRACE_EVENT(rxrpc_transmit,
	    TP_PROTO(struct rxrpc_call *call, enum rxrpc_transmit_trace why),

	    TP_ARGS(call, why),

	    TP_STRUCT__entry(
                    __field(struct rxrpc_call *,        call            )
                    __field(enum rxrpc_transmit_trace,  why             )
                    __field(rxrpc_seq_t,                tx_hard_ack     )
                    __field(rxrpc_seq_t,                tx_top          )
                             ),

	    TP_fast_assign(
                    __entry->call = call;
                    __entry->why = why;
                    __entry->tx_hard_ack = call->tx_hard_ack;
                    __entry->tx_top = call->tx_top;
                           ),

	    TP_printk("c=%p %s f=%08x n=%u",
                      __entry->call,
                      rxrpc_transmit_traces[__entry->why],
                      __entry->tx_hard_ack + 1,
                      __entry->tx_top - __entry->tx_hard_ack)
	    );

TRACE_EVENT(rxrpc_rx_ack,
	    TP_PROTO(struct rxrpc_call *call, rxrpc_seq_t first, u8 reason, u8 n_acks),

	    TP_ARGS(call, first, reason, n_acks),

	    TP_STRUCT__entry(
                    __field(struct rxrpc_call *,        call            )
                    __field(rxrpc_seq_t,                first           )
                    __field(u8,                         reason          )
                    __field(u8,                         n_acks          )
                             ),

	    TP_fast_assign(
                    __entry->call = call;
                    __entry->first = first;
                    __entry->reason = reason;
                    __entry->n_acks = n_acks;
                           ),

	    TP_printk("c=%p %s f=%08x n=%u",
                      __entry->call,
                      rxrpc_ack_names[__entry->reason],
                      __entry->first,
                      __entry->n_acks)
	    );

TRACE_EVENT(rxrpc_tx_data,
	    TP_PROTO(struct rxrpc_call *call, rxrpc_seq_t seq,
                     rxrpc_serial_t serial, u8 flags, bool retrans, bool lose),

	    TP_ARGS(call, seq, serial, flags, retrans, lose),

	    TP_STRUCT__entry(
                    __field(struct rxrpc_call *,        call            )
                    __field(rxrpc_seq_t,                seq             )
                    __field(rxrpc_serial_t,             serial          )
                    __field(u8,                         flags           )
                    __field(bool,                       retrans         )
                    __field(bool,                       lose            )
                             ),

	    TP_fast_assign(
                    __entry->call = call;
                    __entry->seq = seq;
                    __entry->serial = serial;
                    __entry->flags = flags;
                    __entry->retrans = retrans;
                    __entry->lose = lose;
                           ),

	    TP_printk("c=%p DATA %08x q=%08x fl=%02x%s%s",
                      __entry->call,
                      __entry->serial,
                      __entry->seq,
                      __entry->flags,
                      __entry->retrans ? " *RETRANS*" : "",
                      __entry->lose ? " *LOSE*" : "")
	    );

TRACE_EVENT(rxrpc_tx_ack,
	    TP_PROTO(struct rxrpc_call *call, rxrpc_serial_t serial,
                     rxrpc_seq_t ack_first, rxrpc_serial_t ack_serial,
                     u8 reason, u8 n_acks),

	    TP_ARGS(call, serial, ack_first, ack_serial, reason, n_acks),

	    TP_STRUCT__entry(
                    __field(struct rxrpc_call *,        call            )
                    __field(rxrpc_serial_t,             serial          )
                    __field(rxrpc_seq_t,                ack_first       )
                    __field(rxrpc_serial_t,             ack_serial      )
                    __field(u8,                         reason          )
                    __field(u8,                         n_acks          )
                             ),

	    TP_fast_assign(
                    __entry->call = call;
                    __entry->serial = serial;
                    __entry->ack_first = ack_first;
                    __entry->ack_serial = ack_serial;
                    __entry->reason = reason;
                    __entry->n_acks = n_acks;
                           ),

	    TP_printk(" c=%p ACK  %08x %s f=%08x r=%08x n=%u",
                      __entry->call,
                      __entry->serial,
                      rxrpc_ack_names[__entry->reason],
                      __entry->ack_first,
                      __entry->ack_serial,
                      __entry->n_acks)
	    );

TRACE_EVENT(rxrpc_receive,
	    TP_PROTO(struct rxrpc_call *call, enum rxrpc_receive_trace why,
                     rxrpc_serial_t serial, rxrpc_seq_t seq),

	    TP_ARGS(call, why, serial, seq),

	    TP_STRUCT__entry(
                    __field(struct rxrpc_call *,        call            )
                    __field(enum rxrpc_receive_trace,   why             )
                    __field(rxrpc_serial_t,             serial          )
                    __field(rxrpc_seq_t,                seq             )
                    __field(rxrpc_seq_t,                hard_ack        )
                    __field(rxrpc_seq_t,                top             )
                             ),

	    TP_fast_assign(
                    __entry->call = call;
                    __entry->why = why;
                    __entry->serial = serial;
                    __entry->seq = seq;
                    __entry->hard_ack = call->rx_hard_ack;
                    __entry->top = call->rx_top;
                           ),

	    TP_printk("c=%p %s r=%08x q=%08x w=%08x-%08x",
                      __entry->call,
                      rxrpc_receive_traces[__entry->why],
                      __entry->serial,
                      __entry->seq,
                      __entry->hard_ack,
                      __entry->top)
	    );

TRACE_EVENT(rxrpc_recvmsg,
	    TP_PROTO(struct rxrpc_call *call, enum rxrpc_recvmsg_trace why,
                     rxrpc_seq_t seq, unsigned int offset, unsigned int len,
                     int ret),

	    TP_ARGS(call, why, seq, offset, len, ret),

	    TP_STRUCT__entry(
                    __field(struct rxrpc_call *,        call            )
                    __field(enum rxrpc_recvmsg_trace,   why             )
                    __field(rxrpc_seq_t,                seq             )
                    __field(unsigned int,               offset          )
                    __field(unsigned int,               len             )
                    __field(int,                        ret             )
                             ),

	    TP_fast_assign(
                    __entry->call = call;
                    __entry->why = why;
                    __entry->seq = seq;
                    __entry->offset = offset;
                    __entry->len = len;
                    __entry->ret = ret;
                           ),

	    TP_printk("c=%p %s q=%08x o=%u l=%u ret=%d",
                      __entry->call,
                      rxrpc_recvmsg_traces[__entry->why],
                      __entry->seq,
                      __entry->offset,
                      __entry->len,
                      __entry->ret)
	    );

TRACE_EVENT(rxrpc_rtt_tx,
	    TP_PROTO(struct rxrpc_call *call, enum rxrpc_rtt_tx_trace why,
                     rxrpc_serial_t send_serial),

	    TP_ARGS(call, why, send_serial),

	    TP_STRUCT__entry(
                    __field(struct rxrpc_call *,        call            )
                    __field(enum rxrpc_rtt_tx_trace,    why             )
                    __field(rxrpc_serial_t,             send_serial     )
                             ),

	    TP_fast_assign(
                    __entry->call = call;
                    __entry->why = why;
                    __entry->send_serial = send_serial;
                           ),

	    TP_printk("c=%p %s sr=%08x",
                      __entry->call,
                      rxrpc_rtt_tx_traces[__entry->why],
                      __entry->send_serial)
	    );

TRACE_EVENT(rxrpc_rtt_rx,
	    TP_PROTO(struct rxrpc_call *call, enum rxrpc_rtt_rx_trace why,
                     rxrpc_serial_t send_serial, rxrpc_serial_t resp_serial,
                     s64 rtt, u8 nr, s64 avg),

	    TP_ARGS(call, why, send_serial, resp_serial, rtt, nr, avg),

	    TP_STRUCT__entry(
                    __field(struct rxrpc_call *,        call            )
                    __field(enum rxrpc_rtt_rx_trace,    why             )
                    __field(u8,                         nr              )
                    __field(rxrpc_serial_t,             send_serial     )
                    __field(rxrpc_serial_t,             resp_serial     )
                    __field(s64,                        rtt             )
                    __field(u64,                        avg             )
                             ),

	    TP_fast_assign(
                    __entry->call = call;
                    __entry->why = why;
                    __entry->send_serial = send_serial;
                    __entry->resp_serial = resp_serial;
                    __entry->rtt = rtt;
                    __entry->nr = nr;
                    __entry->avg = avg;
                           ),

	    TP_printk("c=%p %s sr=%08x rr=%08x rtt=%lld nr=%u avg=%lld",
                      __entry->call,
                      rxrpc_rtt_rx_traces[__entry->why],
                      __entry->send_serial,
                      __entry->resp_serial,
                      __entry->rtt,
                      __entry->nr,
                      __entry->avg)
	    );

TRACE_EVENT(rxrpc_timer,
	    TP_PROTO(struct rxrpc_call *call, enum rxrpc_timer_trace why,
                     ktime_t now, unsigned long now_j),

	    TP_ARGS(call, why, now, now_j),

	    TP_STRUCT__entry(
                    __field(struct rxrpc_call *,                call            )
                    __field(enum rxrpc_timer_trace,             why             )
                    __field_struct(ktime_t,                     now             )
                    __field_struct(ktime_t,                     expire_at       )
                    __field_struct(ktime_t,                     ack_at          )
                    __field_struct(ktime_t,                     resend_at       )
                    __field(unsigned long,                      now_j           )
                    __field(unsigned long,                      timer           )
                             ),

	    TP_fast_assign(
                    __entry->call       = call;
                    __entry->why        = why;
                    __entry->now        = now;
                    __entry->expire_at  = call->expire_at;
                    __entry->ack_at     = call->ack_at;
                    __entry->resend_at  = call->resend_at;
                    __entry->now_j      = now_j;
                    __entry->timer      = call->timer.expires;
                           ),

	    TP_printk("c=%p %s x=%lld a=%lld r=%lld t=%ld",
                      __entry->call,
                      rxrpc_timer_traces[__entry->why],
                      ktime_to_ns(ktime_sub(__entry->expire_at, __entry->now)),
                      ktime_to_ns(ktime_sub(__entry->ack_at, __entry->now)),
                      ktime_to_ns(ktime_sub(__entry->resend_at, __entry->now)),
                      __entry->timer - __entry->now_j)
	    );

TRACE_EVENT(rxrpc_rx_lose,
	    TP_PROTO(struct rxrpc_skb_priv *sp),

	    TP_ARGS(sp),

	    TP_STRUCT__entry(
                    __field_struct(struct rxrpc_host_header,    hdr             )
                             ),

	    TP_fast_assign(
                    memcpy(&__entry->hdr, &sp->hdr, sizeof(__entry->hdr));
                           ),

	    TP_printk("%08x:%08x:%08x:%04x %08x %08x %02x %02x %s *LOSE*",
                      __entry->hdr.epoch, __entry->hdr.cid,
                      __entry->hdr.callNumber, __entry->hdr.serviceId,
                      __entry->hdr.serial, __entry->hdr.seq,
                      __entry->hdr.type, __entry->hdr.flags,
                      __entry->hdr.type <= 15 ? rxrpc_pkts[__entry->hdr.type] : "?UNK")
	    );

TRACE_EVENT(rxrpc_propose_ack,
	    TP_PROTO(struct rxrpc_call *call, enum rxrpc_propose_ack_trace why,
                     u8 ack_reason, rxrpc_serial_t serial, bool immediate,
                     bool background, enum rxrpc_propose_ack_outcome outcome),

	    TP_ARGS(call, why, ack_reason, serial, immediate, background,
                    outcome),

	    TP_STRUCT__entry(
                    __field(struct rxrpc_call *,                call            )
                    __field(enum rxrpc_propose_ack_trace,       why             )
                    __field(rxrpc_serial_t,                     serial          )
                    __field(u8,                                 ack_reason      )
                    __field(bool,                               immediate       )
                    __field(bool,                               background      )
                    __field(enum rxrpc_propose_ack_outcome,     outcome         )
                             ),

	    TP_fast_assign(
                    __entry->call       = call;
                    __entry->why        = why;
                    __entry->serial     = serial;
                    __entry->ack_reason = ack_reason;
                    __entry->immediate  = immediate;
                    __entry->background = background;
                    __entry->outcome    = outcome;
                           ),

	    TP_printk("c=%p %s %s r=%08x i=%u b=%u%s",
                      __entry->call,
                      rxrpc_propose_ack_traces[__entry->why],
                      rxrpc_ack_names[__entry->ack_reason],
                      __entry->serial,
                      __entry->immediate,
                      __entry->background,
                      rxrpc_propose_ack_outcomes[__entry->outcome])
	    );

TRACE_EVENT(rxrpc_retransmit,
	    TP_PROTO(struct rxrpc_call *call, rxrpc_seq_t seq, u8 annotation,
                     s64 expiry),

	    TP_ARGS(call, seq, annotation, expiry),

	    TP_STRUCT__entry(
                    __field(struct rxrpc_call *,        call            )
                    __field(rxrpc_seq_t,                seq             )
                    __field(u8,                         annotation      )
                    __field(s64,                        expiry          )
                             ),

	    TP_fast_assign(
                    __entry->call = call;
                    __entry->seq = seq;
                    __entry->annotation = annotation;
                    __entry->expiry = expiry;
                           ),

	    TP_printk("c=%p q=%x a=%02x xp=%lld",
                      __entry->call,
                      __entry->seq,
                      __entry->annotation,
                      __entry->expiry)
	    );

TRACE_EVENT(rxrpc_congest,
	    TP_PROTO(struct rxrpc_call *call, struct rxrpc_ack_summary *summary,
                     rxrpc_serial_t ack_serial, enum rxrpc_congest_change change),

	    TP_ARGS(call, summary, ack_serial, change),

	    TP_STRUCT__entry(
                    __field(struct rxrpc_call *,                call            )
                    __field(enum rxrpc_congest_change,          change          )
                    __field(rxrpc_seq_t,                        hard_ack        )
                    __field(rxrpc_seq_t,                        top             )
                    __field(rxrpc_seq_t,                        lowest_nak      )
                    __field(rxrpc_serial_t,                     ack_serial      )
                    __field_struct(struct rxrpc_ack_summary,    sum             )
                             ),

	    TP_fast_assign(
                    __entry->call       = call;
                    __entry->change     = change;
                    __entry->hard_ack   = call->tx_hard_ack;
                    __entry->top        = call->tx_top;
                    __entry->lowest_nak = call->acks_lowest_nak;
                    __entry->ack_serial = ack_serial;
                    memcpy(&__entry->sum, summary, sizeof(__entry->sum));
                           ),

	    TP_printk("c=%p %08x %s %08x %s cw=%u ss=%u nr=%u,%u nw=%u,%u r=%u b=%u u=%u d=%u l=%x%s%s%s",
                      __entry->call,
                      __entry->ack_serial,
                      rxrpc_ack_names[__entry->sum.ack_reason],
                      __entry->hard_ack,
                      rxrpc_congest_modes[__entry->sum.mode],
                      __entry->sum.cwnd,
                      __entry->sum.ssthresh,
                      __entry->sum.nr_acks, __entry->sum.nr_nacks,
                      __entry->sum.nr_new_acks, __entry->sum.nr_new_nacks,
                      __entry->sum.nr_rot_new_acks,
                      __entry->top - __entry->hard_ack,
                      __entry->sum.cumulative_acks,
                      __entry->sum.dup_acks,
                      __entry->lowest_nak, __entry->sum.new_low_nack ? "!" : "",
                      rxrpc_congest_changes[__entry->change],
                      __entry->sum.retrans_timeo ? " rTxTo" : "")
	    );

#endif /* _TRACE_RXRPC_H */

/* This part must be outside protection */
#include <trace/define_trace.h>

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