path: root/drivers/usb/host/xhci-pci.c
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authorHans de Goede <hdegoede@redhat.com>2014-08-01 17:33:08 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2014-08-01 15:48:08 -0700
commite2875c33787ebda21aeecc1a9d3ff52b3aa413ec (patch)
treee87c807803a82ab7ca220079f590979e0f991056 /drivers/usb/host/xhci-pci.c
parent3dbef993c0eb113bf8e85abff8dd57fa33d5bb9b (diff)
uas: Limit qdepth to 32 when connected over usb-2
Some jmicron uas chipsets act up (they disconnect from the bus) when sending more then 32 commands to them at once. Rather then building an ever growing list with usb-id based quirks for devices using this chipset, simply reduce the qdepth to 32 when connected over usb-2. 32 should be plenty to keep things close to maximum possible throughput on usb-2. Cc: stable@vger.kernel.org Tested-and-reported-by: Laszlo T. <tlacix@gmail.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/host/xhci-pci.c')
0 files changed, 0 insertions, 0 deletions