Commit 8a62dff2 authored Aug 30, 2019 by Mathias Nyman Committed by Greg Kroah-Hartman Sep 03, 2019

xhci: add TSP bitflag to TRB tracing



Software can set a Transfer State Preserve (TSP) flag to maintain
data toggle and sequence number when issuing a reset endpoint
command.

xhci driver is using TSP for soft retry, we want to show TSP usage
in tracing as well

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/1567172356-12915-4-git-send-email-mathias.nyman@linux.intel.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent b62a31b0

drivers/usb/host/xhci.h

+2 −1

Original line number	Diff line number	Diff line
		@@ -2337,12 +2337,13 @@ static inline const char *xhci_decode_trb(u32 field0, u32 field1, u32 field2,
		break;
		case TRB_RESET_EP:
		sprintf(str,
		"%s: ctx %08x%08x slot %d ep %d flags %c",
		"%s: ctx %08x%08x slot %d ep %d flags %c:%c",
		xhci_trb_type_string(type),
		field1, field0,
		TRB_TO_SLOT_ID(field3),
		/* Macro decrements 1, maybe it shouldn't?!? */
		TRB_TO_EP_INDEX(field3) + 1,
		field3 & TRB_TSP ? 'T' : 't',
		field3 & TRB_CYCLE ? 'C' : 'c');
		break;
		case TRB_STOP_RING: