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firewire: core: add tracepoint event for asynchronous inbound request

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This commit adds an event for asynchronous inbound request.

The following example is for asynchronous block write request as IEC
61883-1 FCP request from node 0xffc1.

async_request_inbound: \
  transaction=0xffff89fa08cf16c0 generation=4 scode=2 status=2 \
  timestamp=0x00b3 dst_id=0xffc0 tlabel=19 tcode=1 src_id=0xffc1 \
  offset=0xfffff0000d00 header={0xffc04d10,0xffc1ffff,0xf0000d00,0x80000} \
  data={0x19ff08,0xffff0090}

Link: https://lore.kernel.org/r/20240429043218.609398-5-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
This commit is contained in:
Takashi Sakamoto 2024-04-29 13:32:17 +09:00
parent 06cc078c07
commit 2c945b10d7
2 changed files with 28 additions and 1 deletions
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8
drivers/firewire/core-transaction.c
View File

@ -973,11 +973,13 @@ void fw_core_handle_request(struct fw_card *card, struct fw_packet *p)
{
struct fw_request *request;
unsigned long long offset;
unsigned int tcode;
if (p->ack != ACK_PENDING && p->ack != ACK_COMPLETE)
return;
if (tcode_is_link_internal(async_header_get_tcode(p->header))) {
tcode = async_header_get_tcode(p->header);
if (tcode_is_link_internal(tcode)) {
fw_cdev_handle_phy_packet(card, p);
return;
}
@ -988,6 +990,10 @@ void fw_core_handle_request(struct fw_card *card, struct fw_packet *p)
return;
}
trace_async_request_inbound((uintptr_t)request, p->generation, p->speed, p->ack,
p->timestamp, p->header, request->data,
tcode_is_read_request(tcode) ? 0 : request->length / 4);
offset = async_header_get_offset(p->header);
if (!is_in_fcp_region(offset, request->length))

21
include/trace/events/firewire.h
View File

@ -153,6 +153,27 @@ DEFINE_EVENT(async_inbound_template, async_response_inbound,
TP_ARGS(transaction, generation, scode, status, timestamp, header, data, data_count)
);
DEFINE_EVENT_PRINT(async_inbound_template, async_request_inbound,
TP_PROTO(u64 transaction, unsigned int generation, unsigned int scode, unsigned int status, unsigned int timestamp, const u32 *header, const u32 *data, unsigned int data_count),
TP_ARGS(transaction, generation, scode, status, timestamp, header, data, data_count),
TP_printk(
"transaction=0x%llx generation=%u scode=%u status=%u timestamp=0x%04x dst_id=0x%04x tlabel=%u tcode=%u src_id=0x%04x offset=0x%012llx header=%s data=%s",
__entry->transaction,
__entry->generation,
__entry->scode,
__entry->status,
__entry->timestamp,
ASYNC_HEADER_GET_DESTINATION(__entry->header),
ASYNC_HEADER_GET_TLABEL(__entry->header),
ASYNC_HEADER_GET_TCODE(__entry->header),
ASYNC_HEADER_GET_SOURCE(__entry->header),
ASYNC_HEADER_GET_OFFSET(__entry->header),
__print_array(__entry->header, ASYNC_HEADER_QUADLET_COUNT, QUADLET_SIZE),
__print_array(__get_dynamic_array(data),
__get_dynamic_array_len(data) / QUADLET_SIZE, QUADLET_SIZE)
)
);
#undef ASYNC_HEADER_GET_DESTINATION
#undef ASYNC_HEADER_GET_TLABEL
#undef ASYNC_HEADER_GET_TCODE