diff options
| author | hulianqin <hulianqin@vivo.corp-partner.google.com> | 2024-05-12 20:25:02 +0800 |
|---|---|---|
| committer | Lianqin Hu <hulianqin@vivo.corp-partner.google.com> | 2024-05-17 02:31:16 +0000 |
| commit | fd07886c72df4e66fb98593141d2db2b5b6f1f0e (patch) | |
| tree | 7c3257f08acad5a29f83fff0219a2600e23530c8 | |
| parent | 4399b7da1b982b5ac5b245b08b1dc269fc734b65 (diff) | |
| download | hikey-linaro-mirror-android13-5.10.tar.gz | |
ANDROID: usb: Optimize the problem of slow transfer rate in USB accessory modemirror-android13-5.10
The data transfer rate using Google Restore in USB3.2 mode is slower,
only about 140MB/s at 5Gbps.
The bMaxBurst is not set, and num_fifos in
dwc3_gadget_resize_tx_fifosis 1, which results
in only 131btye of dwc3 ram space being allocated to ep.
Modify bMaxBurst to 6.
The 5Gbps rate increases from 140MB/s to 350MB/s.
The 10Gbps rate is increased from 220MB/s to 500MB/s.
Bug: 340049583
BUG: 341178033
Change-Id: I5710af32c72d0b57afaecc00c4f0909af4b9a299
Signed-off-by: Lianqin Hu <hulianqin@vivo.corp-partner.google.com>
Signed-off-by: Lianqin Hu <hulianqin@vivo.com>
(cherry picked from commit 23f2a9f5f13426263f557ff67ce8f4e3f7965d12)
Signed-off-by: Lianqin Hu <hulianqin@vivo.com>
| -rw-r--r-- | drivers/usb/gadget/function/f_accessory.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/usb/gadget/function/f_accessory.c b/drivers/usb/gadget/function/f_accessory.c index ce7814c22057..9a4aec8dbaf0 100644 --- a/drivers/usb/gadget/function/f_accessory.c +++ b/drivers/usb/gadget/function/f_accessory.c @@ -171,7 +171,7 @@ static struct usb_ss_ep_comp_descriptor acc_superspeedplus_comp_desc = { .bDescriptorType = USB_DT_SS_ENDPOINT_COMP, /* the following 2 values can be tweaked if necessary */ - /* .bMaxBurst = 0, */ + .bMaxBurst = 6, /* .bmAttributes = 0, */ }; @@ -196,7 +196,7 @@ static struct usb_ss_ep_comp_descriptor acc_superspeed_comp_desc = { .bDescriptorType = USB_DT_SS_ENDPOINT_COMP, /* the following 2 values can be tweaked if necessary */ - /* .bMaxBurst = 0, */ + .bMaxBurst = 6, /* .bmAttributes = 0, */ }; |