Thread (22 messages) 22 messages, 5 authors, 2022-01-13

Re: USB 3.2 Gen 2x2 "Superspeed+20GBps" support for ASM3242

From: youling257 <hidden>
Date: 2021-12-30 13:10:30

where i can find the series patch? https://patchwork.kernel.org/project/linux-usb/list/?series=427561

when i used maiwo k1690(10gbps) connect to ASM3242 Controller, only 500MB/s.
cat /sys/devices/pci0000:00/0000:00:01.3/0000:09:00.0/usb3/speed, 480
cat /sys/devices/pci0000:00/0000:00:01.3/0000:09:00.0/usb4/speed, 20000
maiwo k1690 is on /sys/devices/pci0000:00/0000:00:01.3/0000:09:00.0/usb4/4-1.
cat /sys/devices/pci0000:00/0000:00:01.3/0000:09:00.0/usb4/4-1/speed, 5000


01:00.0 USB controller: ASMedia Technology Inc. ASM3242 USB 3.2 Host Controller (prog-if 30 [XHCI])
        Subsystem: ASMedia Technology Inc. ASM3242 USB 3.2 Host Controller

[    0.359281] xhci_hcd 0000:01:00.0: xHCI Host Controller
[    0.359283] xhci_hcd 0000:01:00.0: new USB bus registered, assigned bus number 2
[    0.359285] xhci_hcd 0000:01:00.0: Host supports USB 3.2 Enhanced SuperSpeed

[ 1191.734123] usb 4-1: new SuperSpeed USB device number 2 using xhci_hcd
[ 1191.794767] usb-storage 4-1:1.0: USB Mass Storage device detected
[ 1191.795049] scsi host9: usb-storage 4-1:1.0
[ 1051.051274] scsi 9:0:0:0: Direct-Access     Realtek  USB 3.2 Device   1.00 PQ: 0 ANSI: 6
[ 1051.051442] sd 9:0:0:0: Attached scsi generic sg0 type 0
[ 1051.054461] sd 9:0:0:0: [sda] 500118192 512-byte logical blocks: (256 GB/238 GiB)
[ 1051.055068] sd 9:0:0:0: [sda] Write Protect is off
[ 1051.055073] sd 9:0:0:0: [sda] Mode Sense: 37 00 00 08
[ 1051.055716] sd 9:0:0:0: [sda] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
[ 1051.072131]  sda: sda1 sda2

i don't have NVMe to USB 2x2 Enclosure (ASM2364 chipset), i have NVMe to USB 2x1 Enclosure (RTL9120B chipset), maiwo k1690, using it on PciExpress X4 add in card (ASM3242 chipset), it only 5Gbps speed, should be 10Gbps.
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