14fbffb0aa
Add an extra parameter to the ring enqueue burst/bulk functions so that those functions can optionally return the amount of free space in the ring. This information can be used by applications in a number of ways, for instance, with single-producer queues, it provides a max enqueue size which is guaranteed to work. It can also be used to implement watermark functionality in apps, replacing the older functionality with a more flexible version, which enables apps to implement multiple watermark thresholds, rather than just one. Signed-off-by: Bruce Richardson <bruce.richardson@intel.com> Reviewed-by: Yuanhan Liu <yuanhan.liu@linux.intel.com> Acked-by: Olivier Matz <olivier.matz@6wind.com> |
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