drivers/infiniband/core/cma_trace.h
Source file repositories/reference/linux-study-clean/drivers/infiniband/core/cma_trace.h
File Facts
- System
- Linux kernel
- Corpus path
drivers/infiniband/core/cma_trace.h- Extension
.h- Size
- 9146 bytes
- Lines
- 362
- Domain
- Driver Families
- Bucket
- drivers/infiniband
- Inferred role
- Driver Families: implementation source
- Status
- source implementation candidate
Why This File Exists
Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.
- Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.
- Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.
Dependency Surface
linux/tracepoint.htrace/misc/rdma.htrace/define_trace.h
Detected Declarations
- No top-level syscall, struct, function, initcall, or export declaration detected by the generator.
Annotated Snippet
if (!rc) {
__entry->qp_num = id_priv->qp_num;
__entry->qp_type = id_priv->id.qp_type;
} else {
__entry->qp_num = 0;
__entry->qp_type = 0;
}
memcpy(__entry->srcaddr, &id_priv->id.route.addr.src_addr,
sizeof(struct sockaddr_in6));
memcpy(__entry->dstaddr, &id_priv->id.route.addr.dst_addr,
sizeof(struct sockaddr_in6));
),
TP_printk("cm.id=%u src=%pISpc dst=%pISpc tos=%u pd.id=%u qp_type=%s"
" send_wr=%u recv_wr=%u qp_num=%u rc=%d",
__entry->cm_id, __entry->srcaddr, __entry->dstaddr,
__entry->tos, __entry->pd_id,
rdma_show_qp_type(__entry->qp_type), __entry->send_wr,
__entry->recv_wr, __entry->qp_num, __entry->rc
)
);
TRACE_EVENT(cm_req_handler,
TP_PROTO(
const struct rdma_id_private *id_priv,
int event
),
TP_ARGS(id_priv, event),
TP_STRUCT__entry(
__field(u32, cm_id)
__field(u32, tos)
__field(unsigned long, event)
__array(unsigned char, srcaddr, sizeof(struct sockaddr_in6))
__array(unsigned char, dstaddr, sizeof(struct sockaddr_in6))
),
TP_fast_assign(
__entry->cm_id = id_priv->res.id;
__entry->tos = id_priv->tos;
__entry->event = event;
memcpy(__entry->srcaddr, &id_priv->id.route.addr.src_addr,
sizeof(struct sockaddr_in6));
memcpy(__entry->dstaddr, &id_priv->id.route.addr.dst_addr,
sizeof(struct sockaddr_in6));
),
TP_printk("cm.id=%u src=%pISpc dst=%pISpc tos=%u %s (%lu)",
__entry->cm_id, __entry->srcaddr, __entry->dstaddr, __entry->tos,
rdma_show_ib_cm_event(__entry->event), __entry->event
)
);
TRACE_EVENT(cm_event_handler,
TP_PROTO(
const struct rdma_id_private *id_priv,
const struct rdma_cm_event *event
),
TP_ARGS(id_priv, event),
TP_STRUCT__entry(
__field(u32, cm_id)
__field(u32, tos)
__field(unsigned long, event)
__field(int, status)
__array(unsigned char, srcaddr, sizeof(struct sockaddr_in6))
__array(unsigned char, dstaddr, sizeof(struct sockaddr_in6))
),
TP_fast_assign(
__entry->cm_id = id_priv->res.id;
__entry->tos = id_priv->tos;
__entry->event = event->event;
__entry->status = event->status;
memcpy(__entry->srcaddr, &id_priv->id.route.addr.src_addr,
sizeof(struct sockaddr_in6));
memcpy(__entry->dstaddr, &id_priv->id.route.addr.dst_addr,
sizeof(struct sockaddr_in6));
),
TP_printk("cm.id=%u src=%pISpc dst=%pISpc tos=%u %s (%lu/%d)",
__entry->cm_id, __entry->srcaddr, __entry->dstaddr, __entry->tos,
rdma_show_cm_event(__entry->event), __entry->event,
__entry->status
)
);
TRACE_EVENT(cm_event_done,
Annotation
- Immediate include surface: `linux/tracepoint.h`, `trace/misc/rdma.h`, `trace/define_trace.h`.
- Atlas domain: Driver Families / drivers/infiniband.
- 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.