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Groups > linux.debian.kernel > #57457

Bug#859641: Please increase USBIP_VHCI_HC_PORTS and USBIP_VHCI_NR_HCS

Cross-posted to 2 groups.

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Source: linux
Version: 4.9.13-1~bpo8+1
Severity: minor

Hi guys,

In Linaro we're making a lot of use of USB-over-IP devices these days
for our testing lab. We've hit a (very small!) limit defined in kernel
config for the number of virtual host controllers and the ports
allowed per controller.

Currently these are defaulting to

CONFIG_USBIP_VHCI_HC_PORTS=8
(can be 1 <= CONFIG_USBIP_VHCI_HC_PORTS <= 31)

and
CONFIG_USBIP_VHCI_NR_HCS=1
(can be 1 <= CONFIG_USBIP_VHCI_NR_HCS <= 128)

The normal limits are very small; could you please raise these to
(say) 31 and 8 for us? There will obviously be a small increase in
memory usage in the kernel, but only for users of these particular
devices.

Cheers,
Steve

-- System Information:
Debian Release: 8.7
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'stable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.9.0-0.bpo.1-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

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Bug#859641: Please increase USBIP_VHCI_HC_PORTS and USBIP_VHCI_NR_HCS Steve McIntyre <steve@einval.com> - 2017-04-05 15:20 +0200

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