From: Thomas Pugliese <thomas.pugliese@gmail.com>
Date: Fri, 7 Mar 2014 21:37:35 +0000 (-0600)
Subject: usb: wusbcore: use multiple urbs for HWA iso transfer result frame reads
X-Git-Tag: v3.15-rc1~137^2~23
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=335053fe8c94f50c7f1cd7011b3088547480df3c;p=pandora-kernel.git

usb: wusbcore: use multiple urbs for HWA iso transfer result frame reads

Submit multiple concurrent urbs for HWA isochronous transfer result data
frame reads.  This keeps the read pipeline full and significantly
improves performance in cases where the frame reads cannot be combined
because they are not contiguous or multiples of the max packet size.

Signed-off-by: Thomas Pugliese <thomas.pugliese@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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