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usb: host: xhci: add urb_enqueue/dequeue/giveback tracers
These three new tracers will help us tie TRBs into URBs by *also* looking into URB lifetime. Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -642,6 +642,7 @@ static void xhci_giveback_urb_in_irq(struct xhci_hcd *xhci,
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usb_hcd_unlink_urb_from_ep(hcd, urb);
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spin_unlock(&xhci->lock);
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usb_hcd_giveback_urb(hcd, urb, status);
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trace_xhci_urb_giveback(urb);
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spin_lock(&xhci->lock);
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}
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@ -158,6 +158,76 @@ DEFINE_EVENT(xhci_log_trb, xhci_queue_trb,
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TP_ARGS(ring, trb)
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);
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DECLARE_EVENT_CLASS(xhci_log_urb,
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TP_PROTO(struct urb *urb),
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TP_ARGS(urb),
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TP_STRUCT__entry(
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__field(void *, urb)
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__field(unsigned int, pipe)
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__field(unsigned int, stream)
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__field(int, status)
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__field(unsigned int, flags)
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__field(int, num_mapped_sgs)
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__field(int, num_sgs)
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__field(int, length)
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__field(int, actual)
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__field(int, epnum)
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__field(int, dir_in)
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__field(int, type)
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),
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TP_fast_assign(
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__entry->urb = urb;
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__entry->pipe = urb->pipe;
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__entry->stream = urb->stream_id;
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__entry->status = urb->status;
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__entry->flags = urb->transfer_flags;
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__entry->num_mapped_sgs = urb->num_mapped_sgs;
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__entry->num_sgs = urb->num_sgs;
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__entry->length = urb->transfer_buffer_length;
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__entry->actual = urb->actual_length;
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__entry->epnum = usb_endpoint_num(&urb->ep->desc);
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__entry->dir_in = usb_endpoint_dir_in(&urb->ep->desc);
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__entry->type = usb_endpoint_type(&urb->ep->desc);
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),
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TP_printk("ep%d%s-%s: urb %p pipe %u length %d/%d sgs %d/%d stream %d flags %08x",
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__entry->epnum, __entry->dir_in ? "in" : "out",
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({ char *s;
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switch (__entry->type) {
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case USB_ENDPOINT_XFER_INT:
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s = "intr";
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break;
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case USB_ENDPOINT_XFER_CONTROL:
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s = "control";
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break;
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case USB_ENDPOINT_XFER_BULK:
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s = "bulk";
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break;
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case USB_ENDPOINT_XFER_ISOC:
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s = "isoc";
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break;
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default:
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s = "UNKNOWN";
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} s; }), __entry->urb, __entry->pipe, __entry->actual,
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__entry->length, __entry->num_mapped_sgs,
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__entry->num_sgs, __entry->stream, __entry->flags
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)
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);
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DEFINE_EVENT(xhci_log_urb, xhci_urb_enqueue,
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TP_PROTO(struct urb *urb),
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TP_ARGS(urb)
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);
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DEFINE_EVENT(xhci_log_urb, xhci_urb_giveback,
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TP_PROTO(struct urb *urb),
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TP_ARGS(urb)
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);
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DEFINE_EVENT(xhci_log_urb, xhci_urb_dequeue,
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TP_PROTO(struct urb *urb),
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TP_ARGS(urb)
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);
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#endif /* __XHCI_TRACE_H */
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/* this part must be outside header guard */
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@ -1383,6 +1383,8 @@ int xhci_urb_enqueue(struct usb_hcd *hcd, struct urb *urb, gfp_t mem_flags)
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urb_priv->td_cnt = 0;
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urb->hcpriv = urb_priv;
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trace_xhci_urb_enqueue(urb);
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if (usb_endpoint_xfer_control(&urb->ep->desc)) {
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/* Check to see if the max packet size for the default control
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* endpoint changed during FS device enumeration
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@ -1509,6 +1511,9 @@ int xhci_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status)
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xhci = hcd_to_xhci(hcd);
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spin_lock_irqsave(&xhci->lock, flags);
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trace_xhci_urb_dequeue(urb);
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/* Make sure the URB hasn't completed or been unlinked already */
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ret = usb_hcd_check_unlink_urb(hcd, urb, status);
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if (ret || !urb->hcpriv)
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