项目场景：
一直处于host 模式，10次有2次出现30s-1min 才能识别硬盘。其它时候识别都很快2-3s。
问题描述
面的USB3.0口移动硬盘，接入时识别信息如下：
[25.497767] usb 6-1.4: new SuperSpeed USB device number 4 using xhci-hcd
[25.512350] usb 6-1.4: New USB device found, idVendor=2537, idProduct=1068
[25.513043] usb 6-1.4: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[25.513732] usb 6-1.4: Product: NS1068
[25.514119] usb 6-1.4: Manufacturer: Norelsys
[25.514189] usb 6-1.4: SerialNumber: 0123456789ABCDE
[25.527826] scsi host0: uas
[29.089929] scsi 0:0:0:0: Direct-AccessATATOSHIBA MQ01ABD1 1UPQ: 0 ANSI: 6
[29.100317] sd 0:0:0:0: [sda] 1953525168 512-byte logical blocks: (1.00 TB/932 GiB)
[29.100418] sd 0:0:0:0: [sda] 4096-byte physical blocks
[29.104389] sd 0:0:0:0: [sda] Write Protect is off
[29.105420] sd 0:0:0:0: [sda] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
[