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xhci: show usb device name in xhci urb tracing

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parsing xhci traces on systems with several xHCI controllers and connected
usb devices is difficult as entries are all interleaved.

showing usb devname in urb tracing reveals both which device, and which
bus/controller the entry is for.

old:
xhci_urb_enqueue: ep2in-bulk: urb 0000000039224498  ...

new:
xhci_urb_enqueue: 3-9.4 ep1in-bulk: urb 0000000013bf21e7 ...

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20240626124835.1023046-3-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Mathias Nyman 2024-06-26 15:48:16 +03:00 committed by Greg Kroah-Hartman
parent e6092feacf
commit fef267a6c2
1 changed files with 4 additions and 1 deletions
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5
drivers/usb/host/xhci-trace.h
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@ -250,6 +250,7 @@ DECLARE_EVENT_CLASS(xhci_log_urb,
TP_PROTO(struct urb *urb),
TP_ARGS(urb),
TP_STRUCT__entry(
__string(devname, dev_name(&urb->dev->dev))
__field(void *, urb)
__field(unsigned int, pipe)
__field(unsigned int, stream)
@ -265,6 +266,7 @@ DECLARE_EVENT_CLASS(xhci_log_urb,
__field(int, slot_id)
),
TP_fast_assign(
__assign_str(devname);
__entry->urb = urb;
__entry->pipe = urb->pipe;
__entry->stream = urb->stream_id;
@ -279,7 +281,8 @@ DECLARE_EVENT_CLASS(xhci_log_urb,
__entry->type = usb_endpoint_type(&urb->ep->desc);
__entry->slot_id = urb->dev->slot_id;
),
TP_printk("ep%d%s-%s: urb %p pipe %u slot %d length %d/%d sgs %d/%d stream %d flags %08x",
TP_printk("%s ep%d%s-%s: urb %p pipe %u slot %d length %d/%d sgs %d/%d stream %d flags %08x",
__get_str(devname),
__entry->epnum, __entry->dir_in ? "in" : "out",
__print_symbolic(__entry->type,
{ USB_ENDPOINT_XFER_INT, "intr" },