Commit 30ad6273 authored by Felipe Balbi's avatar Felipe Balbi
Browse files

usb: dwc3: trace: print enqueue/dequeue pointers too 



By printing enqueue/dequeue pointers, we can make sure that our TRB
handling is correct. We've had a recent situation where we were not
always dequeueing all TRBs in an SG list and this helped figure out
what the problem was.

Signed-off-by: default avatarFelipe Balbi <balbi@kernel.org>
parent 2c523b34

drivers/usb/dwc3/trace.h

+7 −2
Original line number Diff line number Diff line
@@ -227,6 +227,8 @@ DECLARE_EVENT_CLASS(dwc3_log_trb, 
		__field(u32, size)

		__field(u32, ctrl)

		__field(u32, type)

		__field(u32, enqueue)

		__field(u32, dequeue)

	),

	TP_fast_assign(

		__assign_str(name, dep->name);
@@ -236,9 +238,12 @@ DECLARE_EVENT_CLASS(dwc3_log_trb, 
		__entry->size = trb->size;

		__entry->ctrl = trb->ctrl;

		__entry->type = usb_endpoint_type(dep->endpoint.desc);

		__entry->enqueue = dep->trb_enqueue;

		__entry->dequeue = dep->trb_dequeue;

	),

	TP_printk("%s: trb %p buf %08x%08x size %s%d ctrl %08x (%c%c%c%c:%c%c:%s)",

		__get_str(name), __entry->trb, __entry->bph, __entry->bpl,

	TP_printk("%s: trb %p (E%d:D%d) buf %08x%08x size %s%d ctrl %08x (%c%c%c%c:%c%c:%s)",

		__get_str(name), __entry->trb, __entry->enqueue,

		__entry->dequeue, __entry->bph, __entry->bpl,

		({char *s;

		int pcm = ((__entry->size >> 24) & 3) + 1;

		switch (__entry->type) {

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