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| author |   Mathias Nyman <mathias.nyman@linux.intel.com> | 2019-08-30 16:39:15 +0300 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-09-03 15:49:11 +0200 |
| commit | 8a62dff2c0734a67fefd96742839a6d4bbb2587b (patch) | |
| tree | 90355209465ee3f54080766a0e0b29a07b3bbd3f /drivers/usb | |
| parent | usb: xhci: dbc: Use GFP_KERNEL instead of GFP_ATOMIC in 'xhci_dbc_alloc_requests()' (diff) | |
| download | linux-dev-8a62dff2c0734a67fefd96742839a6d4bbb2587b.tar.xz linux-dev-8a62dff2c0734a67fefd96742839a6d4bbb2587b.zip | |
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>
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/host/xhci.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index f5c41448d067..f9f88626a57a 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -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: |