Hi, I tried changing "RTE_I40E_DESCS_PER_LOOP" located in i40e_rxtx.h to 1 and recompiling DPDK but it didn't work. Is there any procedure to make it work for rx_burst of 1 packet?
On Tue, 3 Sep, 2019, 12:32 Wang, Haiyue, <haiyue.w...@intel.com> wrote: > Some PMD Vector Rx for performance has an hidden limitation like : > > /* nb_pkts shall be less equal than RTE_I40E_MAX_RX_BURST */ > nb_pkts = RTE_MIN(nb_pkts, RTE_I40E_MAX_RX_BURST); > > /* nb_pkts has to be floor-aligned to RTE_I40E_DESCS_PER_LOOP */ > nb_pkts = RTE_ALIGN_FLOOR(nb_pkts, RTE_I40E_DESCS_PER_LOOP); > <------ ;-) > > #define RTE_I40E_DESCS_PER_LOOP 4 > > BR, > Haiyue > > > -----Original Message----- > > From: dev [mailto:dev-boun...@dpdk.org] On Behalf Of Perugu Hemasai > Chandra Prasad > > Sent: Tuesday, September 3, 2019 13:00 > > To: us...@dpdk.org; dev@dpdk.org > > Subject: [dpdk-dev] unable to receive packets less than 4 with > rte_eth_rx_burst Api -regarding. > > > > Hi All, > > I am trying to receive packets transmitted by another DPDK > > application running on different system. I am able to transmit packets > with > > a burst value of 1 using rte_eth_tx_burst Api, but unable to receive > > packets with a burst value less than 4 using rte_eth_rx_burst Api. can > > anyone please tell me the reason behind that? Is that because of any > EthDev > > configuration?. How to receive packets with a burst value of 1? > > > > Thanks & Regards, > > Hemasai >
