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usb: xhci-mtk: update fs bus bandwidth by bw_budget_table
Use @bw_budget_table[] to update fs bus bandwidth due to not all microframes consume @bw_cost_per_microframe, see setup_sch_info(). Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Link: https://lore.kernel.org/r/1629189389-18779-6-git-send-email-chunfeng.yun@mediatek.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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1 changed files with 7 additions and 10 deletions
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@ -458,8 +458,8 @@ static int check_fs_bus_bw(struct mu3h_sch_ep_info *sch_ep, int offset)
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* Compared with hs bus, no matter what ep type,
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* the hub will always delay one uframe to send data
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*/
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for (j = 0; j < sch_ep->cs_count; j++) {
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tmp = tt->fs_bus_bw[base + j] + sch_ep->bw_cost_per_microframe;
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for (j = 0; j < sch_ep->num_budget_microframes; j++) {
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tmp = tt->fs_bus_bw[base + j] + sch_ep->bw_budget_table[j];
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if (tmp > FS_PAYLOAD_MAX)
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return -ESCH_BW_OVERFLOW;
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}
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@ -534,21 +534,18 @@ static void update_sch_tt(struct mu3h_sch_ep_info *sch_ep, bool used)
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{
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struct mu3h_sch_tt *tt = sch_ep->sch_tt;
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u32 base, num_esit;
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int bw_updated;
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int i, j;
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num_esit = XHCI_MTK_MAX_ESIT / sch_ep->esit;
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if (used)
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bw_updated = sch_ep->bw_cost_per_microframe;
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else
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bw_updated = -sch_ep->bw_cost_per_microframe;
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for (i = 0; i < num_esit; i++) {
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base = sch_ep->offset + i * sch_ep->esit;
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for (j = 0; j < sch_ep->cs_count; j++)
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tt->fs_bus_bw[base + j] += bw_updated;
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for (j = 0; j < sch_ep->num_budget_microframes; j++)
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if (used)
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tt->fs_bus_bw[base + j] += sch_ep->bw_budget_table[j];
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else
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tt->fs_bus_bw[base + j] -= sch_ep->bw_budget_table[j];
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}
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if (used)
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