[dpdk-dev] [PATCH v2] eventdev: fix Rx adapter event flush logic

[Thomas Monjalon]

09/05/2019 06:50, Nikhil Rao:
> The Rx adapter flushes events only if it has BATCH_SIZE
> events buffered where BATCH_SIZE is set to 32, e.g., if a
> single packet is sent, it is never passed to
> eventdev. Fix this issue by adding an event buffer flush
> either when a Rx queue is found to be empty or the adapter service
> function has processed the max number of packets for an invocation.
> 
> Bugzilla ID: 277
> 
> Fixes: 6b83f5935543 ("eventdev: add event buffer flush in Rx adapter")
> 
> Reported-by: Matias Elo <matias.elo at nokia.com>
> 
> Signed-off-by: Nikhil Rao <nikhil.rao at intel.com>
> ---
> --- a/lib/librte_eventdev/rte_event_eth_rx_adapter.c
> +++ b/lib/librte_eventdev/rte_event_eth_rx_adapter.c
> @@ -872,7 +872,7 @@ static uint16_t rxa_gcd_u16(uint16_t a, uint16_t b)
> -	if (buf->count >= BATCH_SIZE)
> +	if (buf->count)

I don't this code, but it looks you are removing a test
which was probably done on purpose.
By the way, you should make your test explicit with "!= 0".