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xhci: Add Isochronous TRB fields to TRB tracer

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In addition to Normal TRB fields the Isoch TRBs have a SIA flag,
Frame ID, TLBPC and TBC fields.

Add these fields to tracing output

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20241106101459.775897-2-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Mathias Nyman 2024-11-06 12:14:27 +02:00 committed by Greg Kroah-Hartman
parent 6ff78df5b3
commit 7ca8c96056
1 changed files with 25 additions and 5 deletions
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30
drivers/usb/host/xhci.h
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@ -1023,9 +1023,6 @@ enum xhci_setup_dev {
/* Interrupter Target - which MSI-X vector to target the completion event at */
#define TRB_INTR_TARGET(p) (((p) & 0x3ff) << 22)
#define GET_INTR_TARGET(p) (((p) >> 22) & 0x3ff)
/* Total burst count field, Rsvdz on xhci 1.1 with Extended TBC enabled (ETE) */
#define TRB_TBC(p) (((p) & 0x3) << 7)
#define TRB_TLBPC(p) (((p) & 0xf) << 16)
/* Cycle bit - indicates TRB ownership by HC or HCD */
#define TRB_CYCLE (1<<0)
@ -1059,6 +1056,12 @@ enum xhci_setup_dev {
/* Isochronous TRB specific fields */
#define TRB_SIA (1<<31)
#define TRB_FRAME_ID(p) (((p) & 0x7ff) << 20)
#define GET_FRAME_ID(p) (((p) >> 20) & 0x7ff)
/* Total burst count field, Rsvdz on xhci 1.1 with Extended TBC enabled (ETE) */
#define TRB_TBC(p) (((p) & 0x3) << 7)
#define GET_TBC(p) (((p) >> 7) & 0x3)
#define TRB_TLBPC(p) (((p) & 0xf) << 16)
#define GET_TLBPC(p) (((p) >> 16) & 0xf)
/* TRB cache size for xHC with TRB cache */
#define TRB_CACHE_SIZE_HS 8
@ -2072,7 +2075,6 @@ static inline const char *xhci_decode_trb(char *str, size_t size,
field3 & TRB_CYCLE ? 'C' : 'c');
break;
case TRB_NORMAL:
case TRB_ISOC:
case TRB_EVENT_DATA:
case TRB_TR_NOOP:
snprintf(str, size,
@ -2089,7 +2091,25 @@ static inline const char *xhci_decode_trb(char *str, size_t size,
field3 & TRB_ENT ? 'E' : 'e',
field3 & TRB_CYCLE ? 'C' : 'c');
break;
case TRB_ISOC:
snprintf(str, size,
"Buffer %08x%08x length %d TD size/TBC %d intr %d type '%s' TBC %u TLBPC %u frame_id %u flags %c:%c:%c:%c:%c:%c:%c:%c:%c",
field1, field0, TRB_LEN(field2), GET_TD_SIZE(field2),
GET_INTR_TARGET(field2),
xhci_trb_type_string(type),
GET_TBC(field3),
GET_TLBPC(field3),
GET_FRAME_ID(field3),
field3 & TRB_SIA ? 'S' : 's',
field3 & TRB_BEI ? 'B' : 'b',
field3 & TRB_IDT ? 'I' : 'i',
field3 & TRB_IOC ? 'I' : 'i',
field3 & TRB_CHAIN ? 'C' : 'c',
field3 & TRB_NO_SNOOP ? 'S' : 's',
field3 & TRB_ISP ? 'I' : 'i',
field3 & TRB_ENT ? 'E' : 'e',
field3 & TRB_CYCLE ? 'C' : 'c');
break;
case TRB_CMD_NOOP:
case TRB_ENABLE_SLOT:
snprintf(str, size,