linux usb网卡支持_Linux中的USB标准和支持

linux usb网卡支持

The USB standards have evolved to 3.1 and the supported throughput have been increased too. On Linux, the support to USB standards are following the standards development. In this post, we will survey the standards that common hardware support and the support in Linux.

USB标准已经发展到3.1，并且支持的吞吐量也得到了提高。 在Linux上 ，对USB标准的支持正在遵循标准的发展。 在本文中，我们将调查通用硬件支持的标准以及Linux中的支持。

USB标准 (USB standards)

USB 2.0: https://en.wikipedia.org/wiki/USB#USB_2.0

USB 2.0： https ： //en.wikipedia.org/wiki/USB#USB_2.0

• Speed: <= 60MB/s, or 480 Mbps
  速度：<= 60MB / s或480 Mbps
• Availability: I believe almost all modern servers support it.
  可用性：我相信几乎所有现代服务器都支持它。

USB 3.0: https://en.wikipedia.org/wiki/USB_3.0

USB 3.0： https ： //en.wikipedia.org/wiki/USB_3.0

• http://www.pcworld.com/article/2360306/usb-3-0-speed-real-and-imagined.html .http://www.pcworld.com/article/2360306/usb-3-0-speed-real-and-imagined.html 。
• Availability: should be widely supported.
  可用性：应得到广泛支持。

USB 3.1: https://en.wikipedia.org/wiki/USB_3.1

USB 3.1： https ： //en.wikipedia.org/wiki/USB_3.1

• Speed: (Gen2) <= 10 Gbps
  速度：（Gen2）<= 10 Gbps
• Availability: May be lower than USB 3.0. As the USB storage device and the server mother board and the OS driver should all work well.
  可用性：可能低于USB 3.0。 作为USB存储设备和服务器主板以及OS驱动程序，它们应该都可以正常工作。

Related: identify the type of USB by colors: https://www.geeksinphoenix.com/blog/post/2014/01/12/How-to-tell-what-type-of-USB-connector-you-have-by-color.aspx

相关：通过颜色识别USB类型： https ： //www.geeksinphoenix.com/blog/post/2014/01/12/How-to-tell-what-type-of-USB-connector-you-have-按色.aspx

Linux中的USB stnadards支持 (USB stnadards support in Linux)

In Linux 3.x, USB 3.0 support should be there https://github.com/sarahsharp/xhci . Seems added since 2.6.31 http://www.linux-magazine.com/Online/News/First-Driver-for-USB-3.0 .

在Linux 3.x中 ，USB 3.0支持应该在https://github.com/sarahsharp/xhci上 。 自2.6.31开始，似乎已添加http://www.linux-magazine.com/Online/News/First-Driver-for-USB-3.0 。

For USB 3.1, it may be after 4.6 http://www.theinquirer.net/inquirer/news/2458228/linux-kernel-46-brings-usb-31-support-and-a-new-orangefs-file-system .

对于USB 3.1，可能在4.6 http://www.theinquirer.net/inquirer/news/2458228/linux-kernel-46-brings-usb-31-support-and-a-new-orangefs-file-system之后 。

一些真实的检查 (Some real checking)

On a PC with CentOS 7:

在装有CentOS 7的PC上：

Both USB 2.0 and USB 3.0 bus/drivers are used

USB 2.0和USB 3.0总线/驱动器均被使用

$dmesg | grep -P "xhci|ehci"
[    0.491877] xhci_hcd 0000:00:14.0: xHCI Host Controller
[    0.491899] xhci_hcd 0000:00:14.0: new USB bus registered, assigned bus number 1
[    0.492968] xhci_hcd 0000:00:14.0: hcc params 0x200077c1 hci version 0x100 quirks 0x00009810
[    0.492972] xhci_hcd 0000:00:14.0: cache line size of 64 is not supported
[    0.492985] xhci_hcd 0000:00:14.0: irq 25 for MSI/MSI-X
[    0.493032] usb usb1: Manufacturer: Linux 3.10.0-327.36.3.el7.x86_64 xhci-hcd
[    0.494982] xhci_hcd 0000:00:14.0: xHCI Host Controller
[    0.495002] xhci_hcd 0000:00:14.0: new USB bus registered, assigned bus number 2
[    0.495031] usb usb2: Manufacturer: Linux 3.10.0-327.36.3.el7.x86_64 xhci-hcd
[    0.501360] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[    0.501365] ehci-pci: EHCI PCI platform driver
[    0.501423] ehci-pci 0000:00:1a.0: EHCI Host Controller
[    0.501447] ehci-pci 0000:00:1a.0: new USB bus registered, assigned bus number 3
[    0.501457] ehci-pci 0000:00:1a.0: debug port 2
[    0.505354] ehci-pci 0000:00:1a.0: cache line size of 64 is not supported
[    0.505364] ehci-pci 0000:00:1a.0: irq 20, io mem 0xf7d1c000
[    0.511356] ehci-pci 0000:00:1a.0: USB 2.0 started, EHCI 1.00
[    0.511379] usb usb3: Manufacturer: Linux 3.10.0-327.36.3.el7.x86_64 ehci_hcd
[    0.511535] ehci-pci 0000:00:1d.0: EHCI Host Controller
[    0.511558] ehci-pci 0000:00:1d.0: new USB bus registered, assigned bus number 4
[    0.511566] ehci-pci 0000:00:1d.0: debug port 2
[    0.515464] ehci-pci 0000:00:1d.0: cache line size of 64 is not supported
[    0.515473] ehci-pci 0000:00:1d.0: irq 23, io mem 0xf7d1b000
[    0.521364] ehci-pci 0000:00:1d.0: USB 2.0 started, EHCI 1.00
[    0.521383] usb usb4: Manufacturer: Linux 3.10.0-327.36.3.el7.x86_64 ehci_hcd
[    0.813648] usb 3-1: new high-speed USB device number 2 using ehci-pci
[    0.823644] usb 4-1: new high-speed USB device number 2 using ehci-pci
[    0.847634] usb 1-5: new low-speed USB device number 2 using xhci_hcd
[    1.284016] usb 1-6: new low-speed USB device number 3 using xhci_hcd
[    1.606273] usb 1-12: new high-speed USB device number 4 using xhci_hcd
[16145.244966] usb 1-2: new high-speed USB device number 5 using xhci_hcd
[16341.737992] usb 1-2: new high-speed USB device number 6 using xhci_hcd
[19857.242165] usb 1-2: new high-speed USB device number 7 using xhci_hcd
[19912.856648] usb 1-2: new high-speed USB device number 8 using xhci_hcd
[23640.528415] usb 1-2: new high-speed USB device number 9 using xhci_hcd
[119677.002573] usb 1-2: new high-speed USB device number 10 using xhci_hcd
[180140.108974] usb 1-2: new high-speed USB device number 11 using xhci_hcd
 
$ uname -a
Linux host1 3.10.0-327.36.3.el7.x86_64 #1 SMP Mon Oct 24 16:09:20 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux

On one server with F22, seems there is an USB 3.0 (xHCI) bus identified:

在具有F22的一台服务器上，似乎已识别出USB 3.0（xHCI）总线：

$ lspci | grep USB
00:14.0 USB controller: Intel Corporation C610/X99 series chipset USB xHCI Host Controller (rev 05)
00:1a.0 USB controller: Intel Corporation C610/X99 series chipset USB Enhanced Host Controller #2 (rev 05)
00:1d.0 USB controller: Intel Corporation C610/X99 series chipset USB Enhanced Host Controller #1 (rev 05)
 
# uname -a
Linux svr1 4.2.8-200.fc22.x86_64 #1 SMP Tue Dec 15 16:50:23 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

On another server with CentOS 7:

在装有CentOS 7的另一台服务器上：

$ lspci | grep USB
00:14.0 USB controller: Intel Corporation C610/X99 series chipset USB xHCI Host Controller (rev 05)
00:1a.0 USB controller: Intel Corporation C610/X99 series chipset USB Enhanced Host Controller #2 (rev 05)
00:1d.0 USB controller: Intel Corporation C610/X99 series chipset USB Enhanced Host Controller #1 (rev 05)
 
$ uname -a
Linux svr1 3.18.41-20.el7.x86_64 #1 SMP Wed Sep 7 15:49:05 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux

翻译自: https://www.systutorials.com/usb-standards-supports-linux/

linux usb网卡支持