[dpdk-dev] [PATCH] net/af_xdp: use single-prod-and-cons ring

[Ferruh Yigit]

On 1/14/2020 1:37 AM, Ye Xiaolong wrote:
> On 01/08, Xiao Wang wrote:
>> The ring is used only by af_xdp pmd itself, so no need to support
>> multi-producer and multi-consumer mode. This patch changes the ring
>> to single-producer and single-consumer mode, which could yield better
>> performance for addr enqueue and dequeue.
>>
>> Signed-off-by: Xiao Wang <xiao.w.wang at intel.com>
>> ---
>> drivers/net/af_xdp/rte_eth_af_xdp.c | 2 +-
>> 1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/drivers/net/af_xdp/rte_eth_af_xdp.c b/drivers/net/af_xdp/rte_eth_af_xdp.c
>> index d903e6c28..683e2a559 100644
>> --- a/drivers/net/af_xdp/rte_eth_af_xdp.c
>> +++ b/drivers/net/af_xdp/rte_eth_af_xdp.c
>> @@ -809,7 +809,7 @@ xsk_umem_info *xdp_umem_configure(struct pmd_internals *internals,
>> 	umem->buf_ring = rte_ring_create(ring_name,
>> 					 ETH_AF_XDP_NUM_BUFFERS,
>> 					 rte_socket_id(),
>> -					 0x0);
>> +					 RING_F_SP_ENQ | RING_F_SC_DEQ);
>> 	if (umem->buf_ring == NULL) {
>> 		AF_XDP_LOG(ERR, "Failed to create rte_ring\n");
>> 		goto err;
>> -- 
>> 2.15.1
>>
> 
> Acked-by: Xiaolong Ye <xiaolong.ye at intel.com>
> 

Applied to dpdk-next-net/master, thanks.