On 3/24/21 7:11 AM, Cheng Lu wrote:
Set transfer length to the maximum (65535 * 512) Bytes
of SCSI READ(10) and WRITE(10) commands, while default
transfer length is (20 * 512) Bytes
Please have a look at these four patches, increasing the transfer length
would make some odd USB pen drives fail:
7d6fd7f0ba7 ("usb: storage: Limit transfer size to 120 kiB")
da3d1c499fb ("usb: storage: Only clear READY flag on error")
02b0e1a36c5 ("usb: ehci-hcd: Keep async schedule running")
31232de07ef ("usb: Keep async schedule running only across mass storage
xfers")
Use the async schedule to avoid stopping the controller after every
transfer and thus keep the throughput high, while avoiding very long
transfers which might break odd USB pen drives.
