firewire: core: record card index in async_phy_inbound tracepoints event

The asynchronous transmission of phy packet is initiated on one of 1394
OHCI controller, however the existing tracepoints events has the lack of
data about it.

This commit adds card_index member into event structure to store the index
of host controller in use, and prints it.

Link: https://lore.kernel.org/r/20240613131440.431766-7-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>

Author: takaswie

drivers/firewire/core-transaction.c

@@ -997,7 +997,7 @@ void fw_core_handle_request(struct fw_card *card, struct fw_packet *p)
 
 	tcode = async_header_get_tcode(p->header);
 	if (tcode_is_link_internal(tcode)) {
-		trace_async_phy_inbound((uintptr_t)p, p->generation, p->ack, p->timestamp,
+		trace_async_phy_inbound((uintptr_t)p, card->index, p->generation, p->ack, p->timestamp,
 					 p->header[1], p->header[2]);
 		fw_cdev_handle_phy_packet(card, p);
 		return;

include/trace/events/firewire.h

@@ -271,10 +271,11 @@ TRACE_EVENT(async_phy_outbound_complete,
 );
 
 TRACE_EVENT(async_phy_inbound,
-	TP_PROTO(u64 packet, unsigned int generation, unsigned int status, unsigned int timestamp, u32 first_quadlet, u32 second_quadlet),
-	TP_ARGS(packet, generation, status, timestamp, first_quadlet, second_quadlet),
+	TP_PROTO(u64 packet, unsigned int card_index, unsigned int generation, unsigned int status, unsigned int timestamp, u32 first_quadlet, u32 second_quadlet),
+	TP_ARGS(packet, card_index, generation, status, timestamp, first_quadlet, second_quadlet),
 	TP_STRUCT__entry(
 		__field(u64, packet)
+		__field(u8, card_index)
 		__field(u8, generation)
 		__field(u8, status)
 		__field(u16, timestamp)
@@ -290,8 +291,9 @@ TRACE_EVENT(async_phy_inbound,
 		__entry->second_quadlet = second_quadlet
 	),
 	TP_printk(
-		"packet=0x%llx generation=%u status=%u timestamp=0x%04x first_quadlet=0x%08x second_quadlet=0x%08x",
+		"packet=0x%llx card_index=%u generation=%u status=%u timestamp=0x%04x first_quadlet=0x%08x second_quadlet=0x%08x",
 		__entry->packet,
+		__entry->card_index,
 		__entry->generation,
 		__entry->status,
 		__entry->timestamp,