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

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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: Felipe Balbi <balbi@kernel.org>
This commit is contained in:
Felipe Balbi 2020-01-29 09:20:19 +02:00
parent 2c523b344d
commit 30ad6273ad
1 changed files with 7 additions and 2 deletions
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9
drivers/usb/dwc3/trace.h
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@ -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) {