usb: xhci-mtk: improve split scheduling by separate IN/OUT budget

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Calculate the IN/OUT budget separately to improve the bandwidth schedule,
meanwhile should avoid Start-Split token overlap between IN and OUT
endpoints, and take into account the FS/LS bandwidth boundary in each
microframe and also in each FS frame.
Calculate the budget for SS of OUT eps and CS of IN eps, but not include
extra-cs, and always add at most extra-cs allowed.

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Link: https://lore.kernel.org/r/20230830122820.18859-2-chunfeng.yun@mediatek.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Chunfeng Yun 2023-08-30 20:28:20 +08:00 • committed by Greg Kroah-Hartman

parent ba6b83a910

commit 5c954e030f

2 changed files with 278 additions and 40 deletions

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309

drivers/usb/host/xhci-mtk-sch.c

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13

drivers/usb/host/xhci-mtk.h

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