[dpdk-dev] [PATCH v3 1/5] net/af_xdp: introduce AF XDP PMD driver
Ye Xiaolong
xiaolong.ye at intel.com
Fri Mar 22 03:05:05 CET 2019
On 03/21, Stephen Hemminger wrote:
>On Thu, 21 Mar 2019 17:18:41 +0800
>Xiaolong Ye <xiaolong.ye at intel.com> wrote:
>
>> + for (i = 0; i < rcvd; i++) {
>> + const struct xdp_desc *desc;
>> + uint64_t addr;
>> + uint32_t len;
>> + void *pkt;
>> +
>> + desc = xsk_ring_cons__rx_desc(rx, idx_rx++);
>> + addr = desc->addr;
>> + len = desc->len;
>> + pkt = xsk_umem__get_data(rxq->umem->buffer, addr);
>> +
>> + mbuf = rte_pktmbuf_alloc(rxq->mb_pool);
>
>You could use rte_pktmbuf_alloc_bulk to get the mbufs in one call
>before doing this. It saves rcvd-1 atomic operations.
Got it, will do.
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