a3a0e81b6f
SMC-R link down event is important to help us find links' issues, we should track this event, especially in the single nic mode, which means upper layer connection would be shut down. Then find out the direct link-down reason in time, not only increased the counter, also the location of the code who triggered this event. Signed-off-by: Tony Lu <tonylu@linux.alibaba.com> Reviewed-by: Wen Gu <guwen@linux.alibaba.com> Signed-off-by: David S. Miller <davem@davemloft.net>
117 lines
2.5 KiB
C
117 lines
2.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#undef TRACE_SYSTEM
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#define TRACE_SYSTEM smc
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#if !defined(_TRACE_SMC_H) || defined(TRACE_HEADER_MULTI_READ)
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#define _TRACE_SMC_H
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#include <linux/ipv6.h>
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#include <linux/tcp.h>
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#include <linux/tracepoint.h>
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#include <net/ipv6.h>
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#include "smc.h"
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#include "smc_core.h"
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TRACE_EVENT(smc_switch_to_fallback,
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TP_PROTO(const struct smc_sock *smc, int fallback_rsn),
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TP_ARGS(smc, fallback_rsn),
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TP_STRUCT__entry(
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__field(const void *, sk)
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__field(const void *, clcsk)
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__field(int, fallback_rsn)
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),
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TP_fast_assign(
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const struct sock *sk = &smc->sk;
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const struct sock *clcsk = smc->clcsock->sk;
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__entry->sk = sk;
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__entry->clcsk = clcsk;
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__entry->fallback_rsn = fallback_rsn;
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),
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TP_printk("sk=%p clcsk=%p fallback_rsn=%d",
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__entry->sk, __entry->clcsk, __entry->fallback_rsn)
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);
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DECLARE_EVENT_CLASS(smc_msg_event,
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TP_PROTO(const struct smc_sock *smc, size_t len),
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TP_ARGS(smc, len),
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TP_STRUCT__entry(
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__field(const void *, smc)
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__field(size_t, len)
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__string(name, smc->conn.lnk->ibname)
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),
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TP_fast_assign(
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__entry->smc = smc;
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__entry->len = len;
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__assign_str(name, smc->conn.lnk->ibname);
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),
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TP_printk("smc=%p len=%zu dev=%s",
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__entry->smc, __entry->len,
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__get_str(name))
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);
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DEFINE_EVENT(smc_msg_event, smc_tx_sendmsg,
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TP_PROTO(const struct smc_sock *smc, size_t len),
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TP_ARGS(smc, len)
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);
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DEFINE_EVENT(smc_msg_event, smc_rx_recvmsg,
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TP_PROTO(const struct smc_sock *smc, size_t len),
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TP_ARGS(smc, len)
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);
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TRACE_EVENT(smcr_link_down,
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TP_PROTO(const struct smc_link *lnk, void *location),
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TP_ARGS(lnk, location),
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TP_STRUCT__entry(
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__field(const void *, lnk)
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__field(const void *, lgr)
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__field(int, state)
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__string(name, lnk->ibname)
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__field(void *, location)
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),
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TP_fast_assign(
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const struct smc_link_group *lgr = lnk->lgr;
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__entry->lnk = lnk;
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__entry->lgr = lgr;
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__entry->state = lnk->state;
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__assign_str(name, lnk->ibname);
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__entry->location = location;
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),
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TP_printk("lnk=%p lgr=%p state=%d dev=%s location=%p",
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__entry->lnk, __entry->lgr,
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__entry->state, __get_str(name),
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__entry->location)
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);
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#endif /* _TRACE_SMC_H */
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#undef TRACE_INCLUDE_PATH
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#define TRACE_INCLUDE_PATH .
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#undef TRACE_INCLUDE_FILE
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#define TRACE_INCLUDE_FILE smc_tracepoint
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#include <trace/define_trace.h>
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