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| author |   Felipe Balbi <felipe.balbi@linux.intel.com> | 2016-10-25 13:47:21 +0300 |
|---|---|---|
| committer | Felipe Balbi <felipe.balbi@linux.intel.com> | 2016-11-03 10:38:40 +0200 |
| commit | e62c5bc57367ac277b932571943c9a09e737ad88 (patch) | |
| tree | 0e0b3131783d3aef3f13a9d18acf7ef58a6b0489 /drivers/usb/dwc3/core.h | |
| parent | usb: dwc3: gadget: cope with XferNotReady before usb_ep_queue() (diff) | |
| download | linux-dev-e62c5bc57367ac277b932571943c9a09e737ad88.tar.xz linux-dev-e62c5bc57367ac277b932571943c9a09e737ad88.zip | |
usb: dwc3: gadget: tracking per-TRB remaining bytes
This will give us a simpler way of figuring out how
many bytes were left in each TRB. It's useful for
cases where we queue only part of an SG-list due to
amount of available TRBs at the time of kicking the
transfer.
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Diffstat (limited to 'drivers/usb/dwc3/core.h')
| -rw-r--r-- | drivers/usb/dwc3/core.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h index ebc8a542407f..2322863e3cf7 100644 --- a/drivers/usb/dwc3/core.h +++ b/drivers/usb/dwc3/core.h @@ -715,6 +715,7 @@ struct dwc3_hwparams { * @dep: struct dwc3_ep owning this request * @sg: pointer to first incomplete sg * @num_pending_sgs: counter to pending sgs + * @remaining: amount of data remaining * @epnum: endpoint number to which this request refers * @trb: pointer to struct dwc3_trb * @trb_dma: DMA address of @trb @@ -729,6 +730,7 @@ struct dwc3_request { struct scatterlist *sg; unsigned num_pending_sgs; + unsigned remaining; u8 epnum; struct dwc3_trb *trb; dma_addr_t trb_dma; |