From: chen_lp <chen_lp@neusoft.com>
To: <dev@dpdk.org>
Subject: [dpdk-dev] 82599 TX IP checksum offloading
Date: Mon, 25 Nov 2013 14:23:23 +0800 [thread overview]
Message-ID: <5292ECDB.6070007@neusoft.com> (raw)
Hi,
I want NIC to calculate ip checksum on dpdk-1.5.0,
I have set:
static const struct rte_eth_txconf tx_conf = {
.tx_thresh = {
.pthresh = TX_PTHRESH,
.hthresh = TX_HTHRESH,
.wthresh = TX_WTHRESH,
},
.tx_free_thresh = 0,
.tx_rs_thresh = 0,
.txq_flags = 0,
};
this struct is used by int rte_eth_tx_queue_setup(uint8_t port_id, uint16_t tx_queue_id,
uint16_t nb_tx_desc, unsigned int socket_id,
const struct rte_eth_txconf **tx_conf*);
when constructing the pkt will been sending:
mbuf->ol_flags|=(PKT_TX_IP_CKSUM|PKT_RX_IPV4_HDR); |~
mbuf->pkt.vlan_macip.f.l2_len = sizeof(struct ether_hdr); |~
mbuf->pkt.vlan_macip.f.l3_len = sizeof(struct ipv4_hdr);
but the NIC not calculate ip checksum,did anyone tell me what's wrong whith it?
by the way,I create multi-queue for tx and rx.
Thanks,
chen_lp
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next reply other threads:[~2013-11-25 6:22 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-11-25 6:23 chen_lp [this message]
2013-11-25 9:15 ` Daniel Kaminsky
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