On Mon, 2016-08-29 at 13:26 +0800, Lu Baolu wrote:
> + /*
> + * Memory barrier to ensure hardware sees the trbs
> + * enqueued above.
> + */
> + wmb();
> + if (cycle)
> + trb->field[3] |= cpu_to_le32(cycle);
> + else
> + trb->field[3] &= cpu_to_le32(~TRB_CYCLE);
And this manipulation you don't need the hardware to see?
Regards
Oliver
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