Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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: Takashi Sakamoto <o-takashi@sakamocchi.jp>
+40
+4
drivers/firewire/core-iso.c
+4
drivers/firewire/core-iso.c
···
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void fw_iso_context_queue_flush(struct fw_iso_context *ctx)
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{
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trace_isoc_outbound_flush(ctx);
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trace_isoc_inbound_single_flush(ctx);
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trace_isoc_inbound_multiple_flush(ctx);
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+
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ctx->card->driver->flush_queue_iso(ctx);
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}
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EXPORT_SYMBOL(fw_iso_context_queue_flush);
+36
include/trace/events/firewire.h
+36
include/trace/events/firewire.h
···
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TP_CONDITION(ctx->type == FW_ISO_CONTEXT_RECEIVE_MULTICHANNEL)
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);
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DECLARE_EVENT_CLASS(isoc_flush_template,
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TP_PROTO(const struct fw_iso_context *ctx),
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TP_ARGS(ctx),
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TP_STRUCT__entry(
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__field(u64, context)
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__field(u8, card_index)
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),
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TP_fast_assign(
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__entry->context = (uintptr_t)ctx;
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__entry->card_index = ctx->card->index;
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),
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TP_printk(
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"context=0x%llx card_index=%u",
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__entry->context,
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__entry->card_index
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)
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);
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+
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DEFINE_EVENT_CONDITION(isoc_flush_template, isoc_outbound_flush,
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TP_PROTO(const struct fw_iso_context *ctx),
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TP_ARGS(ctx),
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TP_CONDITION(ctx->type == FW_ISO_CONTEXT_TRANSMIT)
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);
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+
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DEFINE_EVENT_CONDITION(isoc_flush_template, isoc_inbound_single_flush,
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TP_PROTO(const struct fw_iso_context *ctx),
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TP_ARGS(ctx),
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TP_CONDITION(ctx->type == FW_ISO_CONTEXT_RECEIVE)
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+
);
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+
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DEFINE_EVENT_CONDITION(isoc_flush_template, isoc_inbound_multiple_flush,
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TP_PROTO(const struct fw_iso_context *ctx),
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TP_ARGS(ctx),
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TP_CONDITION(ctx->type == FW_ISO_CONTEXT_RECEIVE_MULTICHANNEL)
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+
);
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+
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#undef QUADLET_SIZE
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#endif // _FIREWIRE_TRACE_EVENT_H