主页 / user-826650

Elo I's questions

Martin Hope
Elo I
Asked: 2020-01-11 07:25:56 +0800 CST
  • 1

我刚刚开始建立一个多演出网络。我找到了一些不错的 USB 转 2.5GBASE-T 适配器。

现在，虽然它们确实是开箱即用的，但它们似乎使用 cdc-ncm 作为驱动程序，无法充分利用 NIC 的功能（限制为 1500MTU 并阻碍了性能）

这可以通过为该芯片安装现已过时的 Realtek 驱动程序来解决。问题是，我需要在连接设备之前使用 modprobe -r 踢 cdc-mbim 和 cdc-ncm ，否则模块将发生冲突并且 cdc-ncm 将获胜。但是，我不只是想将这两个模块列入黑名单，因为我还安装了一个使用这些模块的 LTE 调制解调器。

我的两个问题：

  1. 如何防止 cdc-ncm 超越设备而不只是将其撕掉？
  2. 如何修补驱动程序以使用最新的内核版本？

系统信息：

  • uname -r：5.3.8-050308-通用
  • 瑞昱驱动：r8152_2.12.0
  • 与 cdc-ncm 连接后的 dmesg 输出：
[  556.959398] usb 3-3.2: New USB device found, idVendor=0bda, idProduct=8156, bcdDevice=30.00
[  556.959400] usb 3-3.2: New USB device strings: Mfr=1, Product=2, SerialNumber=6
[  556.959401] usb 3-3.2: Product: USB 10/100/1G/2.5G LAN
[  556.959402] usb 3-3.2: Manufacturer: Realtek
[  556.959403] usb 3-3.2: SerialNumber: 000000001
[  556.984103] cdc_ncm 3-3.2:2.0: MAC-Address: a0:ce:c8:cb:7c:ca
[  556.984105] cdc_ncm 3-3.2:2.0: setting rx_max = 16384
[  556.984172] cdc_ncm 3-3.2:2.0: setting tx_max = 16384
[  556.984445] cdc_ncm 3-3.2:2.0 usb0: register 'cdc_ncm' at usb-0000:00:14.0-3.2, CDC NCM, a0:ce:c8:cb:7c:ca
[  557.009821] usbcore: registered new interface driver r8152
[  557.012312] cdc_ncm 3-3.2:2.0 enxa0cec8cb7cca: renamed from usb0
[  557.062459] usb 2-3.1.1: new high-speed USB device number 8 using xhci_hcd
[  557.062510] cdc_ncm 3-3.2:2.0 enxa0cec8cb7cca: network connection: disconnected
[  557.094515] cdc_ncm 3-3.2:2.0 enxa0cec8cb7cca: network connection: disconnected
[  557.126508] cdc_ncm 3-3.2:2.0 enxa0cec8cb7cca: network connection: disconnected
[  557.158506] cdc_ncm 3-3.2:2.0 enxa0cec8cb7cca: network connection: disconnected
[  557.190514] cdc_ncm 3-3.2:2.0 enxa0cec8cb7cca: network connection: disconnected
  • 踢完两个模块后的 dmesg 输出：
[  624.246651] usb 3-3.2: New USB device strings: Mfr=1, Product=2, SerialNumber=6
[  624.246653] usb 3-3.2: Product: USB 10/100/1G/2.5G LAN
[  624.246654] usb 3-3.2: Manufacturer: Realtek
[  624.246655] usb 3-3.2: SerialNumber: 000000001
[  624.330110] usb 3-3.2: reset SuperSpeed Gen 1 USB device number 5 using xhci_hcd
[  624.444293] r8152 3-3.2:1.0 eth0: v2.12.0 (2019/04/29)
[  624.444295] r8152 3-3.2:1.0 eth0: Hello 
[  624.606497] usbcore: registered new interface driver cdc_ncm
[  624.608322] usbcore: registered new interface driver cdc_wdm
[  624.656599] cdc_mbim 2-4:1.0: setting rx_max = 16384
[  624.657267] cdc_mbim 2-4:1.0: cdc-wdm0: USB WDM device
[  624.657816] cdc_mbim 2-4:1.0 wwan0: register 'cdc_mbim' at usb-0000:00:14.0-4, CDC MBIM, d2:c8:53:b2:65:df
[  624.659148] usbcore: registered new interface driver cdc_mbim
[  624.661511] cdc_mbim 2-4:1.0 wwp0s20u4: renamed from wwan0
[  624.675680] r8152 3-3.2:1.0 enxa0cec8cb7cca: renamed from eth0
[  628.423530] IPv6: ADDRCONF(NETDEV_CHANGE): enxa0cec8cb7cca: link becomes ready
[  628.423959] r8152 3-3.2:1.0 enxa0cec8cb7cca: carrier on

任何帮助是极大的赞赏！

networking drivers kernel usb realtek
Martin Hope
Elo I
Asked: 2018-05-07 10:09:13 +0800 CST
  • 1

在最近的一些更新之后，我的服务器告诉我它再也找不到使用其磁盘 ID 安装的外部备份磁盘。

所以我检查并注意到我的外部备份驱动器的 ID 已更改：从 ata-ST3000DM001... 到 usb-Seagate_Expansion_Desk...

很公平，好吧，它是一个 USB 驱动器。但是后来我的备份脚本抱怨它无法读取 SMART 数据，这在以前的标识符之前从来都不是问题。

我可以从我的脚本中删除智能检查，但我不认为这是一个选项，因为这意味着如果这个磁盘坏了我不会收到通知。

到目前为止我尝试过的事情：

smartctl -d sat -a /dev/disk/by-id/usb-...

smartctl (-d sat) -a /dev/sda

重启

有用的信息：

lsusb:
Bus 005 Device 002: ID 0bc2:331a Seagate RSS LLC

smartctl:
smartctl 6.5 2016-01-24 r4214 [x86_64-linux-4.4.0-122-generic] (local  build)
Copyright (C) 2002-16, Bruce Allen, Christian Franke,   www.smartmontools.org

Read Device Identity failed: scsi error unsupported field in scsi command

A mandatory SMART command failed: exiting. To continue, add one or more '-T permissive' options.

uname:
4.4.0-122-generic

先感谢您！

server usb usb-drive smart