drivers/net/wireless/intel/iwlwifi/iwl-devtrace-iwlwifi.h
Source file repositories/reference/linux-study-clean/drivers/net/wireless/intel/iwlwifi/iwl-devtrace-iwlwifi.h
File Facts
- System
- Linux kernel
- Corpus path
drivers/net/wireless/intel/iwlwifi/iwl-devtrace-iwlwifi.h- Extension
.h- Size
- 3939 bytes
- Lines
- 138
- Domain
- Driver Families
- Bucket
- drivers/net
- 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/define_trace.h
Detected Declarations
- No top-level syscall, struct, function, initcall, or export declaration detected by the generator.
Annotated Snippet
#if !defined(__IWLWIFI_DEVICE_TRACE_IWLWIFI) || defined(TRACE_HEADER_MULTI_READ)
#define __IWLWIFI_DEVICE_TRACE_IWLWIFI
#include <linux/tracepoint.h>
#undef TRACE_SYSTEM
#define TRACE_SYSTEM iwlwifi
TRACE_EVENT(iwlwifi_dev_hcmd,
TP_PROTO(const struct device *dev,
struct iwl_host_cmd *cmd, u16 total_size,
struct iwl_cmd_header_wide *hdr),
TP_ARGS(dev, cmd, total_size, hdr),
TP_STRUCT__entry(
DEV_ENTRY
__dynamic_array(u8, hcmd, total_size)
__field(u32, flags)
),
TP_fast_assign(
int i, offset = sizeof(struct iwl_cmd_header);
if (hdr->group_id)
offset = sizeof(struct iwl_cmd_header_wide);
DEV_ASSIGN;
__entry->flags = cmd->flags;
memcpy(__get_dynamic_array(hcmd), hdr, offset);
for (i = 0; i < IWL_MAX_CMD_TBS_PER_TFD; i++) {
if (!cmd->len[i])
continue;
memcpy((u8 *)__get_dynamic_array(hcmd) + offset,
cmd->data[i], cmd->len[i]);
offset += cmd->len[i];
}
),
TP_printk("[%s] hcmd %#.2x.%#.2x (%ssync)",
__get_str(dev), ((u8 *)__get_dynamic_array(hcmd))[1],
((u8 *)__get_dynamic_array(hcmd))[0],
__entry->flags & CMD_ASYNC ? "a" : "")
);
TRACE_EVENT(iwlwifi_dev_rx,
TP_PROTO(const struct device *dev,
struct iwl_rx_packet *pkt, size_t len, size_t trace_len,
size_t hdr_offset),
TP_ARGS(dev, pkt, len, trace_len, hdr_offset),
TP_STRUCT__entry(
DEV_ENTRY
__field(u16, cmd)
__field(u8, hdr_offset)
__dynamic_array(u8, rxbuf, trace_len)
),
TP_fast_assign(
DEV_ASSIGN;
__entry->cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd);
memcpy(__get_dynamic_array(rxbuf), pkt, trace_len);
__entry->hdr_offset = hdr_offset;
),
TP_printk("[%s] RX cmd %#.2x",
__get_str(dev), __entry->cmd)
);
TRACE_EVENT(iwlwifi_dev_tx,
TP_PROTO(const struct device *dev, struct sk_buff *skb,
void *tfd, size_t tfdlen,
void *buf0, size_t buf0_len,
int hdr_len),
TP_ARGS(dev, skb, tfd, tfdlen, buf0, buf0_len, hdr_len),
TP_STRUCT__entry(
DEV_ENTRY
__field(void *, skbaddr)
__field(size_t, framelen)
__dynamic_array(u8, tfd, tfdlen)
/*
* Do not insert between or below these items,
* we want to keep the frame together (except
* for the possible padding).
*/
__dynamic_array(u8, buf0, buf0_len)
__dynamic_array(u8, buf1, hdr_len > 0 && !iwl_trace_data(skb) ?
skb->len - hdr_len : 0)
),
TP_fast_assign(
DEV_ASSIGN;
__entry->skbaddr = skb;
__entry->framelen = buf0_len;
if (hdr_len > 0)
__entry->framelen += skb->len - hdr_len;
Annotation
- Immediate include surface: `linux/tracepoint.h`, `trace/define_trace.h`.
- Atlas domain: Driver Families / drivers/net.
- 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.