diff options
| author | Chunfeng Yun <chunfeng.yun@mediatek.com> | 2023-08-30 15:28:20 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-10-02 17:32:18 +0300 |
| commit | 5c954e030f55b40b0b538c66d1a49a91b727f4dc (patch) | |
| tree | 55b6f190f079312bed31d5bd849afd000802d562 /drivers/usb/host/xhci-mtk.h | |
| parent | ba6b83a910b6d8a9379bda55cbf06cb945473a96 (diff) | |
| download | linux-5c954e030f55b40b0b538c66d1a49a91b727f4dc.tar.xz | |
usb: xhci-mtk: improve split scheduling by separate IN/OUT budget
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>
Diffstat (limited to 'drivers/usb/host/xhci-mtk.h')
| -rw-r--r-- | drivers/usb/host/xhci-mtk.h | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/drivers/usb/host/xhci-mtk.h b/drivers/usb/host/xhci-mtk.h index ef8af20b5e88..865b55e23b15 100644 --- a/drivers/usb/host/xhci-mtk.h +++ b/drivers/usb/host/xhci-mtk.h @@ -30,12 +30,21 @@ #define XHCI_MTK_MAX_ESIT (1 << 6) #define XHCI_MTK_BW_INDEX(x) ((x) & (XHCI_MTK_MAX_ESIT - 1)) +#define UFRAMES_PER_FRAME 8 +#define XHCI_MTK_FRAMES_CNT (XHCI_MTK_MAX_ESIT / UFRAMES_PER_FRAME) + /** - * @fs_bus_bw: array to keep track of bandwidth already used for FS + * @fs_bus_bw_out: save bandwidth used by FS/LS OUT eps in each uframes + * @fs_bus_bw_in: save bandwidth used by FS/LS IN eps in each uframes + * @ls_bus_bw: save bandwidth used by LS eps in each uframes + * @fs_frame_bw: save bandwidth used by FS/LS eps in each FS frames * @ep_list: Endpoints using this TT */ struct mu3h_sch_tt { - u32 fs_bus_bw[XHCI_MTK_MAX_ESIT]; + u16 fs_bus_bw_out[XHCI_MTK_MAX_ESIT]; + u16 fs_bus_bw_in[XHCI_MTK_MAX_ESIT]; + u8 ls_bus_bw[XHCI_MTK_MAX_ESIT]; + u16 fs_frame_bw[XHCI_MTK_FRAMES_CNT]; struct list_head ep_list; }; |