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path: root/drivers/usb/host/xhci.h
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Diffstat (limited to 'drivers/usb/host/xhci.h')
-rw-r--r--drivers/usb/host/xhci.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index 85ba326806ab..5ba01d5ccab8 100644
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -1526,6 +1526,12 @@ static inline const char *xhci_trb_type_string(u8 type)
#define TRB_BUFF_LEN_UP_TO_BOUNDARY(addr) (TRB_MAX_BUFF_SIZE - \
(addr & (TRB_MAX_BUFF_SIZE - 1)))
#define MAX_SOFT_RETRY 3
+/*
+ * Limits of consecutive isoc trbs that can Block Event Interrupt (BEI) if
+ * XHCI_AVOID_BEI quirk is in use.
+ */
+#define AVOID_BEI_INTERVAL_MIN 8
+#define AVOID_BEI_INTERVAL_MAX 32
struct xhci_segment {
union xhci_trb *trbs;
@@ -1768,6 +1774,7 @@ struct xhci_hcd {
u8 isoc_threshold;
/* imod_interval in ns (I * 250ns) */
u32 imod_interval;
+ u32 isoc_bei_interval;
int event_ring_max;
/* 4KB min, 128MB max */
int page_size;