Patch series adds support to handle non maxpacket aligned transfers greater than bounce buffer size (512). It first adds chained TRB support and then uses it to handle non maxpacket aligned transfers greater than bounce buffer size.
Also included a cleanup patch to use 'roundup' macro. This series is created after applying [1] Non maxpacket aligned transfers can be initiated by "./testusb -t 14 -c 1 -s 520 -v 1" Before this series: unknown speed /dev/bus/usb/001/018 0 /dev/bus/usb/001/018 test 14 --> 110 (Connection timed out) After this series: unknown speed /dev/bus/usb/001/023 0 /dev/bus/usb/001/023 test 14, 0.000486 secs Tested this patch using USB3 Gen X CV (ch9 tests: usb2 and usb3, link layer testing and MSC tests) and using USB2 X CV (ch9 tests, MSC tests) and verified this doesn't cause additional failures. Lecroy compliance tests fail even without this patch series so deferred testing it. [1] -> http://permalink.gmane.org/gmane.linux.kernel/1972684 Kishon Vijay Abraham I (5): usb: dwc3: ep0: use _roundup_ to calculate the transfer size usb: dwc3: ep0: preparation for handling non maxpacket aligned transfers > 512 usb: dwc3; ep0: Modify _dwc3_ep0_start_trans_ API to take 'chain' parameter usb: dwc3: ep0: Add chained TRB support usb: dwc3: ep0: handle non maxpacket aligned transfers > 512 drivers/usb/dwc3/ep0.c | 94 ++++++++++++++++++++++++++++++--------------- drivers/usb/dwc3/gadget.c | 2 +- 2 files changed, 64 insertions(+), 32 deletions(-) -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
