net/smc/smc_tracepoint.h
Source file repositories/reference/linux-study-clean/net/smc/smc_tracepoint.h
File Facts
- System
- Linux kernel
- Corpus path
net/smc/smc_tracepoint.h- Extension
.h- Size
- 2984 bytes
- Lines
- 126
- Domain
- Networking Core
- Bucket
- Sockets, Protocols, Packet Path, And Network Policy
- Inferred role
- Networking Core: implementation source
- Status
- source implementation candidate
Why This File Exists
Networking stack implementation surface: socket APIs, protocol dispatch, packet flow, routing, filtering, and network namespaces.
- Networking stack implementation surface: socket APIs, protocol dispatch, packet flow, routing, filtering, and network namespaces.
- Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.
Dependency Surface
linux/ipv6.hlinux/tcp.hlinux/tracepoint.hnet/ipv6.hsmc.hsmc_core.htrace/define_trace.h
Detected Declarations
- No top-level syscall, struct, function, initcall, or export declaration detected by the generator.
Annotated Snippet
#undef TRACE_SYSTEM
#define TRACE_SYSTEM smc
#if !defined(_TRACE_SMC_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_SMC_H
#include <linux/ipv6.h>
#include <linux/tcp.h>
#include <linux/tracepoint.h>
#include <net/ipv6.h>
#include "smc.h"
#include "smc_core.h"
TRACE_EVENT(smc_switch_to_fallback,
TP_PROTO(const struct smc_sock *smc, int fallback_rsn),
TP_ARGS(smc, fallback_rsn),
TP_STRUCT__entry(
__field(const void *, sk)
__field(const void *, clcsk)
__field(u64, net_cookie)
__field(int, fallback_rsn)
),
TP_fast_assign(
const struct sock *sk = &smc->sk;
const struct sock *clcsk = smc->clcsock->sk;
__entry->sk = sk;
__entry->clcsk = clcsk;
__entry->net_cookie = sock_net(sk)->net_cookie;
__entry->fallback_rsn = fallback_rsn;
),
TP_printk("sk=%p clcsk=%p net=%llu fallback_rsn=%d",
__entry->sk, __entry->clcsk,
__entry->net_cookie, __entry->fallback_rsn)
);
DECLARE_EVENT_CLASS(smc_msg_event,
TP_PROTO(const struct smc_sock *smc, size_t len),
TP_ARGS(smc, len),
TP_STRUCT__entry(
__field(const void *, smc)
__field(u64, net_cookie)
__field(size_t, len)
__string(name, smc->conn.lnk ? smc->conn.lnk->ibname : "")
),
TP_fast_assign(
const struct sock *sk = &smc->sk;
__entry->smc = smc;
__entry->net_cookie = sock_net(sk)->net_cookie;
__entry->len = len;
__assign_str(name);
),
TP_printk("smc=%p net=%llu len=%zu dev=%s",
__entry->smc, __entry->net_cookie,
__entry->len, __get_str(name))
);
DEFINE_EVENT(smc_msg_event, smc_tx_sendmsg,
TP_PROTO(const struct smc_sock *smc, size_t len),
TP_ARGS(smc, len)
);
DEFINE_EVENT(smc_msg_event, smc_rx_recvmsg,
TP_PROTO(const struct smc_sock *smc, size_t len),
TP_ARGS(smc, len)
);
TRACE_EVENT(smcr_link_down,
TP_PROTO(const struct smc_link *lnk, void *location),
TP_ARGS(lnk, location),
TP_STRUCT__entry(
__field(const void *, lnk)
Annotation
- Immediate include surface: `linux/ipv6.h`, `linux/tcp.h`, `linux/tracepoint.h`, `net/ipv6.h`, `smc.h`, `smc_core.h`, `trace/define_trace.h`.
- Atlas domain: Networking Core / Sockets, Protocols, Packet Path, And Network Policy.
- Implementation status: source implementation candidate.
Implementation Notes
- This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
- Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
- Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.