diff options
| -rw-r--r-- | drivers/firewire/core-transaction.c | 7 | ||||
| -rw-r--r-- | include/trace/events/firewire.h | 103 |
2 files changed, 109 insertions, 1 deletions
diff --git a/drivers/firewire/core-transaction.c b/drivers/firewire/core-transaction.c index 3ecb0b945083..c9318024386f 100644 --- a/drivers/firewire/core-transaction.c +++ b/drivers/firewire/core-transaction.c @@ -29,6 +29,7 @@ #include <asm/byteorder.h> #include "core.h" +#include <trace/events/firewire.h> #include "packet-header-definitions.h" #define HEADER_DESTINATION_IS_BROADCAST(header) \ @@ -173,6 +174,9 @@ static void transmit_complete_callback(struct fw_packet *packet, struct fw_transaction *t = container_of(packet, struct fw_transaction, packet); + trace_async_request_outbound_complete((uintptr_t)t, packet->generation, packet->speed, + status, packet->timestamp); + switch (status) { case ACK_COMPLETE: close_transaction(t, card, RCODE_COMPLETE, packet->timestamp); @@ -394,6 +398,9 @@ void __fw_send_request(struct fw_card *card, struct fw_transaction *t, int tcode spin_unlock_irqrestore(&card->lock, flags); + trace_async_request_outbound_initiate((uintptr_t)t, generation, speed, t->packet.header, payload, + tcode_is_read_request(tcode) ? 0 : length / 4); + card->driver->send_request(card, &t->packet); } EXPORT_SYMBOL_GPL(__fw_send_request); diff --git a/include/trace/events/firewire.h b/include/trace/events/firewire.h index bc55eaabf695..063695874cfb 100644 --- a/include/trace/events/firewire.h +++ b/include/trace/events/firewire.h @@ -7,8 +7,109 @@ #define _FIREWIRE_TRACE_EVENT_H #include <linux/tracepoint.h> +#include <linux/firewire.h> -// Placeholder for future use. +#include <linux/firewire-constants.h> + +#include "../../../drivers/firewire/packet-header-definitions.h" + +// The content of TP_printk field is preprocessed, then put to the module binary. +#define ASYNC_HEADER_GET_DESTINATION(header) \ + (((header)[0] & ASYNC_HEADER_Q0_DESTINATION_MASK) >> ASYNC_HEADER_Q0_DESTINATION_SHIFT) + +#define ASYNC_HEADER_GET_TLABEL(header) \ + (((header)[0] & ASYNC_HEADER_Q0_TLABEL_MASK) >> ASYNC_HEADER_Q0_TLABEL_SHIFT) + +#define ASYNC_HEADER_GET_TCODE(header) \ + (((header)[0] & ASYNC_HEADER_Q0_TCODE_MASK) >> ASYNC_HEADER_Q0_TCODE_SHIFT) + +#define ASYNC_HEADER_GET_SOURCE(header) \ + (((header)[1] & ASYNC_HEADER_Q1_SOURCE_MASK) >> ASYNC_HEADER_Q1_SOURCE_SHIFT) + +#define ASYNC_HEADER_GET_OFFSET(header) \ + ((((unsigned long long)((header)[1] & ASYNC_HEADER_Q1_OFFSET_HIGH_MASK)) >> ASYNC_HEADER_Q1_OFFSET_HIGH_SHIFT) << 32)| \ + (header)[2] + +#define QUADLET_SIZE 4 + +DECLARE_EVENT_CLASS(async_outbound_initiate_template, + TP_PROTO(u64 transaction, unsigned int generation, unsigned int scode, const u32 *header, const u32 *data, unsigned int data_count), + TP_ARGS(transaction, generation, scode, header, data, data_count), + TP_STRUCT__entry( + __field(u64, transaction) + __field(u8, generation) + __field(u8, scode) + __array(u32, header, ASYNC_HEADER_QUADLET_COUNT) + __dynamic_array(u32, data, data_count) + ), + TP_fast_assign( + __entry->transaction = transaction; + __entry->generation = generation; + __entry->scode = scode; + memcpy(__entry->header, header, QUADLET_SIZE * ASYNC_HEADER_QUADLET_COUNT); + memcpy(__get_dynamic_array(data), data, __get_dynamic_array_len(data)); + ), + // This format is for the request subaction. + TP_printk( + "transaction=0x%llx generation=%u scode=%u 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, + 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) + ) +); + +// The value of status is one of ack codes and rcodes specific to Linux FireWire subsystem. +DECLARE_EVENT_CLASS(async_outbound_complete_template, + TP_PROTO(u64 transaction, unsigned int generation, unsigned int scode, unsigned int status, unsigned int timestamp), + TP_ARGS(transaction, generation, scode, status, timestamp), + TP_STRUCT__entry( + __field(u64, transaction) + __field(u8, generation) + __field(u8, scode) + __field(u8, status) + __field(u16, timestamp) + ), + TP_fast_assign( + __entry->transaction = transaction; + __entry->generation = generation; + __entry->scode = scode; + __entry->status = status; + __entry->timestamp = timestamp; + ), + TP_printk( + "transaction=0x%llx generation=%u scode=%u status=%u timestamp=0x%04x", + __entry->transaction, + __entry->generation, + __entry->scode, + __entry->status, + __entry->timestamp + ) +); + +DEFINE_EVENT(async_outbound_initiate_template, async_request_outbound_initiate, + TP_PROTO(u64 transaction, unsigned int generation, unsigned int scode, const u32 *header, const u32 *data, unsigned int data_count), + TP_ARGS(transaction, generation, scode, header, data, data_count) +); + +DEFINE_EVENT(async_outbound_complete_template, async_request_outbound_complete, + TP_PROTO(u64 transaction, unsigned int generation, unsigned int scode, unsigned int status, unsigned int timestamp), + TP_ARGS(transaction, generation, scode, status, timestamp) +); + +#undef ASYNC_HEADER_GET_DESTINATION +#undef ASYNC_HEADER_GET_TLABEL +#undef ASYNC_HEADER_GET_TCODE +#undef ASYNC_HEADER_GET_SOURCE +#undef ASYNC_HEADER_GET_OFFSET +#undef QUADLET_SIZE #endif // _FIREWIRE_TRACE_EVENT_H |