Commit c0b0ce6c authored by Takashi Sakamoto's avatar Takashi Sakamoto
Browse files

firewire: core: add tracepoints events for flushing of isochronous context 

It is helpful to trace the flushing of isochronous context when the core
function is requested them by both in-kernel unit drivers and userspace
applications.

This commit adds some tracepoints events for the aim.

Link: https://lore.kernel.org/r/20240623220859.851685-5-o-takashi@sakamocchi.jp


Signed-off-by: default avatarTakashi Sakamoto <o-takashi@sakamocchi.jp>
parent 4e64210f

drivers/firewire/core-iso.c

+4 −0
Original line number Diff line number Diff line
@@ -197,6 +197,10 @@ EXPORT_SYMBOL(fw_iso_context_queue); 


void fw_iso_context_queue_flush(struct fw_iso_context *ctx)

{

	trace_isoc_outbound_flush(ctx);

	trace_isoc_inbound_single_flush(ctx);

	trace_isoc_inbound_multiple_flush(ctx);



	ctx->card->driver->flush_queue_iso(ctx);

}

EXPORT_SYMBOL(fw_iso_context_queue_flush);

include/trace/events/firewire.h

+36 −0
Original line number Diff line number Diff line
@@ -670,6 +670,42 @@ DEFINE_EVENT_CONDITION(isoc_stop_template, isoc_inbound_multiple_stop, 
	TP_CONDITION(ctx->type == FW_ISO_CONTEXT_RECEIVE_MULTICHANNEL)

);



DECLARE_EVENT_CLASS(isoc_flush_template,

	TP_PROTO(const struct fw_iso_context *ctx),

	TP_ARGS(ctx),

	TP_STRUCT__entry(

		__field(u64, context)

		__field(u8, card_index)

	),

	TP_fast_assign(

		__entry->context = (uintptr_t)ctx;

		__entry->card_index = ctx->card->index;

	),

	TP_printk(

		"context=0x%llx card_index=%u",

		__entry->context,

		__entry->card_index

	)

);



DEFINE_EVENT_CONDITION(isoc_flush_template, isoc_outbound_flush,

	TP_PROTO(const struct fw_iso_context *ctx),

	TP_ARGS(ctx),

	TP_CONDITION(ctx->type == FW_ISO_CONTEXT_TRANSMIT)

);



DEFINE_EVENT_CONDITION(isoc_flush_template, isoc_inbound_single_flush,

	TP_PROTO(const struct fw_iso_context *ctx),

	TP_ARGS(ctx),

	TP_CONDITION(ctx->type == FW_ISO_CONTEXT_RECEIVE)

);



DEFINE_EVENT_CONDITION(isoc_flush_template, isoc_inbound_multiple_flush,

	TP_PROTO(const struct fw_iso_context *ctx),

	TP_ARGS(ctx),

	TP_CONDITION(ctx->type == FW_ISO_CONTEXT_RECEIVE_MULTICHANNEL)

);



#undef QUADLET_SIZE



#endif // _FIREWIRE_TRACE_EVENT_H