diff options
| author | Mathias Nyman <mathias.nyman@linux.intel.com> | 2024-02-17 03:09:29 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-02-17 18:24:37 +0300 |
| commit | becbd202af8425e336b1c25e9254616a5c03d819 (patch) | |
| tree | 421b6c0e5b8e450652b894aa26daa6add0afa09b /drivers/usb/host/xhci.h | |
| parent | ace21625878f78708b75b7a872ec7a0e2ed15ca4 (diff) | |
| download | linux-becbd202af8425e336b1c25e9254616a5c03d819.tar.xz | |
xhci: make isoc_bei_interval variable interrupter specific.
isoc_bei_interval is used to balance how often completed isochronous
events cause interrupts. If interval is too large then the event ring
may fill up before the completed isoc TRBs are handled.
isoc_bei_interval is tuned based on how full the event ring is.
isoc_bei_interval variable needs to be per interrupter as
with several interrupters each one has its own event ring.
move isoc_bei_interval variable to the interrupter structure.
if a secondary interrupter does not care about this feature then
keep isoc_bei_interval 0.
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Wesley Cheng <quic_wcheng@quicinc.com>
Link: https://lore.kernel.org/r/20240217001017.29969-4-quic_wcheng@quicinc.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/host/xhci.h')
| -rw-r--r-- | drivers/usb/host/xhci.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index 36c3ba64da51..6e09b9130fae 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -1433,6 +1433,7 @@ struct xhci_interrupter { struct xhci_intr_reg __iomem *ir_set; unsigned int intr_num; bool ip_autoclear; + u32 isoc_bei_interval; /* For interrupter registers save and restore over suspend/resume */ u32 s3_irq_pending; u32 s3_irq_control; @@ -1505,7 +1506,6 @@ 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; |