From: Chunfeng Yun <chunfeng.yun@mediatek.com>
To: Ikjoon Jang <ikjn@chromium.org>
Cc: Yaqii wu <yaqii.wu@mediatek.com>, <srv_wsdupstream@mediatek.com>,
<linux-mediatek@lists.infradead.org>,
Chunfeng Yun <chunfeng.yun@mediatek.com>
Subject: [RFC PATCH 1/6] usb: xhci-mtk: update fs bus bandwidth by bw_budget_table
Date: Mon, 23 Aug 2021 20:53:51 +0800 [thread overview]
Message-ID: <1629723236-10768-1-git-send-email-chunfeng.yun@mediatek.com> (raw)
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>
---
drivers/usb/host/xhci-mtk-sch.c | 17 +++++++----------
1 file changed, 7 insertions(+), 10 deletions(-)
diff --git a/drivers/usb/host/xhci-mtk-sch.c b/drivers/usb/host/xhci-mtk-sch.c
index cffcaf4dfa9f..83abd28269ca 100644
--- a/drivers/usb/host/xhci-mtk-sch.c
+++ b/drivers/usb/host/xhci-mtk-sch.c
@@ -458,8 +458,8 @@ static int check_fs_bus_bw(struct mu3h_sch_ep_info *sch_ep, int offset)
* Compared with hs bus, no matter what ep type,
* the hub will always delay one uframe to send data
*/
- for (j = 0; j < sch_ep->cs_count; j++) {
- tmp = tt->fs_bus_bw[base + j] + sch_ep->bw_cost_per_microframe;
+ for (j = 0; j < sch_ep->num_budget_microframes; j++) {
+ tmp = tt->fs_bus_bw[base + j] + sch_ep->bw_budget_table[j];
if (tmp > FS_PAYLOAD_MAX)
return -ESCH_BW_OVERFLOW;
}
@@ -534,21 +534,18 @@ static void update_sch_tt(struct mu3h_sch_ep_info *sch_ep, bool used)
{
struct mu3h_sch_tt *tt = sch_ep->sch_tt;
u32 base, num_esit;
- int bw_updated;
int i, j;
num_esit = XHCI_MTK_MAX_ESIT / sch_ep->esit;
- if (used)
- bw_updated = sch_ep->bw_cost_per_microframe;
- else
- bw_updated = -sch_ep->bw_cost_per_microframe;
-
for (i = 0; i < num_esit; i++) {
base = sch_ep->offset + i * sch_ep->esit;
- for (j = 0; j < sch_ep->cs_count; j++)
- tt->fs_bus_bw[base + j] += bw_updated;
+ for (j = 0; j < sch_ep->num_budget_microframes; j++)
+ if (used)
+ tt->fs_bus_bw[base + j] += sch_ep->bw_budget_table[j];
+ else
+ tt->fs_bus_bw[base + j] -= sch_ep->bw_budget_table[j];
}
if (used)
--
2.18.0
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next reply other threads:[~2021-08-23 12:54 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-23 12:53 Chunfeng Yun [this message]
2021-08-23 12:53 ` [RFC PATCH 2/6] usb: xhci-mtk: add a member of num_esit Chunfeng Yun
2021-08-23 12:53 ` [RFC PATCH 3/6] usb: xhci-mtk: Do not use xhci's virt_dev in drop_endpoint Chunfeng Yun
2021-08-24 3:53 ` Ikjoon Jang
2021-08-24 9:15 ` Chunfeng Yun (云春峰)
2021-08-23 12:53 ` [RFC PATCH 4/6] usb: xhci-mtk: allow bandwidth table rollover Chunfeng Yun
2021-08-23 12:53 ` [RFC PATCH 5/6] dt-bindings: usb: mtk-xhci: support drop extra CS Chunfeng Yun
2021-08-23 12:53 ` [RFC PATCH 6/6] usb: xhci-mtk: Add " Chunfeng Yun
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