[dpdk-dev] [RFC PATCH 1/2] app/testpmd: add packet template
Xueming Li
xuemingl at mellanox.com
Thu Oct 19 16:06:48 CEST 2017
Txonly forwarding mode will check templates, if avaialbe, use templates
for each queue.
Signed-off-by: Xueming Li <xuemingl at mellanox.com>
---
app/test-pmd/testpmd.c | 3 +++
app/test-pmd/testpmd.h | 1 +
app/test-pmd/txonly.c | 42 ++++++++++++++++++++++++++----------------
3 files changed, 30 insertions(+), 16 deletions(-)
diff --git a/app/test-pmd/testpmd.c b/app/test-pmd/testpmd.c
index a4d4a866b..dacb97888 100644
--- a/app/test-pmd/testpmd.c
+++ b/app/test-pmd/testpmd.c
@@ -128,6 +128,9 @@ uint8_t mp_anon = 0;
struct ether_addr peer_eth_addrs[RTE_MAX_ETHPORTS];
portid_t nb_peer_eth_addrs = 0;
+/* Template of packet to tx */
+struct rte_mbuf *pkt_templ[RTE_MAX_ETHPORTS][RTE_MAX_QUEUES_PER_PORT];
+
/*
* Probed Target Environment.
*/
diff --git a/app/test-pmd/testpmd.h b/app/test-pmd/testpmd.h
index 265b75f9f..4090d1e87 100644
--- a/app/test-pmd/testpmd.h
+++ b/app/test-pmd/testpmd.h
@@ -480,6 +480,7 @@ extern struct fwd_stream **fwd_streams;
extern portid_t nb_peer_eth_addrs; /**< Number of peer ethernet addresses. */
extern struct ether_addr peer_eth_addrs[RTE_MAX_ETHPORTS];
+extern struct rte_mbuf *pkt_templ[RTE_MAX_ETHPORTS][RTE_MAX_QUEUES_PER_PORT];
extern uint32_t burst_tx_delay_time; /**< Burst tx delay time(us) for mac-retry. */
extern uint32_t burst_tx_retry_num; /**< Burst tx retry number for mac-retry. */
diff --git a/app/test-pmd/txonly.c b/app/test-pmd/txonly.c
index 7070ddc3b..e2b189c60 100644
--- a/app/test-pmd/txonly.c
+++ b/app/test-pmd/txonly.c
@@ -186,6 +186,7 @@ pkt_burst_transmit(struct fwd_stream *fs)
struct rte_port *txp;
struct rte_mbuf *pkt;
struct rte_mbuf *pkt_seg;
+ struct rte_mbuf *tmpl;
struct rte_mempool *mbp;
struct ether_hdr eth_hdr;
uint16_t nb_tx;
@@ -206,6 +207,7 @@ pkt_burst_transmit(struct fwd_stream *fs)
#endif
mbp = current_fwd_lcore()->mbp;
+ tmpl = pkt_templ[fs->tx_port][fs->tx_queue];
txp = &ports[fs->tx_port];
vlan_tci = txp->tx_vlan_id;
vlan_tci_outer = txp->tx_vlan_id_outer;
@@ -231,7 +233,7 @@ pkt_burst_transmit(struct fwd_stream *fs)
* reset to default value.
*/
rte_pktmbuf_reset_headroom(pkt);
- pkt->data_len = tx_pkt_seg_lengths[0];
+ pkt->data_len = tmpl ? tmpl->data_len : tx_pkt_seg_lengths[0];
pkt_seg = pkt;
if (tx_pkt_split == TX_PKT_SPLIT_RND)
nb_segs = random() % tx_pkt_nb_segs + 1;
@@ -251,22 +253,30 @@ pkt_burst_transmit(struct fwd_stream *fs)
}
pkt_seg->next = NULL; /* Last segment of packet. */
- /*
- * Initialize Ethernet header.
- */
- ether_addr_copy(&peer_eth_addrs[fs->peer_addr],ð_hdr.d_addr);
- ether_addr_copy(&ports[fs->tx_port].eth_addr, ð_hdr.s_addr);
- eth_hdr.ether_type = rte_cpu_to_be_16(ETHER_TYPE_IPv4);
+ if (tmpl) {
+ copy_buf_to_pkt(
+ rte_pktmbuf_mtod_offset(tmpl, void *, 0),
+ tmpl->data_len, pkt, 0);
+ } else {
+ /*
+ * Initialize Ethernet header.
+ */
+ ether_addr_copy(&peer_eth_addrs[fs->peer_addr],
+ ð_hdr.d_addr);
+ ether_addr_copy(&ports[fs->tx_port].eth_addr,
+ ð_hdr.s_addr);
+ eth_hdr.ether_type = rte_cpu_to_be_16(ETHER_TYPE_IPv4);
- /*
- * Copy headers in first packet segment(s).
- */
- copy_buf_to_pkt(ð_hdr, sizeof(eth_hdr), pkt, 0);
- copy_buf_to_pkt(&pkt_ip_hdr, sizeof(pkt_ip_hdr), pkt,
- sizeof(struct ether_hdr));
- copy_buf_to_pkt(&pkt_udp_hdr, sizeof(pkt_udp_hdr), pkt,
- sizeof(struct ether_hdr) +
- sizeof(struct ipv4_hdr));
+ /*
+ * Copy headers in first packet segment(s).
+ */
+ copy_buf_to_pkt(ð_hdr, sizeof(eth_hdr), pkt, 0);
+ copy_buf_to_pkt(&pkt_ip_hdr, sizeof(pkt_ip_hdr), pkt,
+ sizeof(struct ether_hdr));
+ copy_buf_to_pkt(&pkt_udp_hdr, sizeof(pkt_udp_hdr), pkt,
+ sizeof(struct ether_hdr) +
+ sizeof(struct ipv4_hdr));
+ }
/*
* Complete first mbuf of packet and append it to the
--
2.13.3
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