[dpdk-stable] [PATCH 19.11] app/testpmd: fix packets dump overlapping
Jiawei Wang
jiaweiw at nvidia.com
Fri Feb 5 09:24:58 CET 2021
[ upstream commit 2ce964954b44aa87926052a7b018605e2a19eacd ]
When testpmd enabled the verbosity for the received packets, if two
packets were received at the same time, for example, sampling packet and
normal packet, the dump output of these packets may be overlapping due
to multiple core handling the multiple queues simultaneously.
The patch uses one string buffer that collects all the packet dump
output into this buffer and then printouts it at last, that guarantees
to printout separately the dump output per packet.
Fixes: d862c45b5955 ("app/testpmd: move dumping packets to a separate function")
Signed-off-by: Jiawei Wang <jiaweiw at nvidia.com>
---
app/test-pmd/util.c | 134 ++++++++++++++++++++++++++++++++++------------------
1 file changed, 89 insertions(+), 45 deletions(-)
diff --git a/app/test-pmd/util.c b/app/test-pmd/util.c
index 4e4ead3..487260d 100644
--- a/app/test-pmd/util.c
+++ b/app/test-pmd/util.c
@@ -14,12 +14,23 @@
#include "testpmd.h"
+#define MAX_STRING_LEN 8192
+
+#define MKDUMPSTR(buf, buf_size, cur_len, ...) \
+do { \
+ if (cur_len >= buf_size) \
+ break; \
+ cur_len += snprintf(buf + cur_len, buf_size - cur_len, __VA_ARGS__); \
+} while (0)
+
static inline void
-print_ether_addr(const char *what, const struct rte_ether_addr *eth_addr)
+print_ether_addr(const char *what, const struct rte_ether_addr *eth_addr,
+ char print_buf[], size_t buf_size, size_t *cur_len)
{
char buf[RTE_ETHER_ADDR_FMT_SIZE];
+
rte_ether_format_addr(buf, RTE_ETHER_ADDR_FMT_SIZE, eth_addr);
- printf("%s%s", what, buf);
+ MKDUMPSTR(print_buf, buf_size, *cur_len, "%s%s", what, buf);
}
static inline void
@@ -39,13 +50,15 @@
uint16_t udp_port;
uint32_t vx_vni;
const char *reason;
+ char print_buf[MAX_STRING_LEN];
+ size_t buf_size = MAX_STRING_LEN;
+ size_t cur_len = 0;
if (!nb_pkts)
return;
- printf("port %u/queue %u: %s %u packets\n",
- port_id, queue,
- is_rx ? "received" : "sent",
- (unsigned int) nb_pkts);
+ MKDUMPSTR(print_buf, buf_size, cur_len,
+ "port %u/queue %u: %s %u packets\n", port_id, queue,
+ is_rx ? "received" : "sent", (unsigned int) nb_pkts);
for (i = 0; i < nb_pkts; i++) {
mb = pkts[i];
eth_hdr = rte_pktmbuf_read(mb, 0, sizeof(_eth_hdr), &_eth_hdr);
@@ -54,62 +67,84 @@
packet_type = mb->packet_type;
is_encapsulation = RTE_ETH_IS_TUNNEL_PKT(packet_type);
- print_ether_addr(" src=", ð_hdr->s_addr);
- print_ether_addr(" - dst=", ð_hdr->d_addr);
- printf(" - type=0x%04x - length=%u - nb_segs=%d",
- eth_type, (unsigned int) mb->pkt_len,
- (int)mb->nb_segs);
+ print_ether_addr(" src=", ð_hdr->s_addr,
+ print_buf, buf_size, &cur_len);
+ print_ether_addr(" - dst=", ð_hdr->d_addr,
+ print_buf, buf_size, &cur_len);
+ MKDUMPSTR(print_buf, buf_size, cur_len,
+ " - type=0x%04x - length=%u - nb_segs=%d",
+ eth_type, (unsigned int) mb->pkt_len,
+ (int)mb->nb_segs);
if (ol_flags & PKT_RX_RSS_HASH) {
- printf(" - RSS hash=0x%x", (unsigned int) mb->hash.rss);
- printf(" - RSS queue=0x%x", (unsigned int) queue);
+ MKDUMPSTR(print_buf, buf_size, cur_len,
+ " - RSS hash=0x%x",
+ (unsigned int) mb->hash.rss);
+ MKDUMPSTR(print_buf, buf_size, cur_len,
+ " - RSS queue=0x%x", (unsigned int) queue);
}
if (ol_flags & PKT_RX_FDIR) {
- printf(" - FDIR matched ");
+ MKDUMPSTR(print_buf, buf_size, cur_len,
+ " - FDIR matched ");
if (ol_flags & PKT_RX_FDIR_ID)
- printf("ID=0x%x",
- mb->hash.fdir.hi);
+ MKDUMPSTR(print_buf, buf_size, cur_len,
+ "ID=0x%x", mb->hash.fdir.hi);
else if (ol_flags & PKT_RX_FDIR_FLX)
- printf("flex bytes=0x%08x %08x",
- mb->hash.fdir.hi, mb->hash.fdir.lo);
+ MKDUMPSTR(print_buf, buf_size, cur_len,
+ "flex bytes=0x%08x %08x",
+ mb->hash.fdir.hi, mb->hash.fdir.lo);
else
- printf("hash=0x%x ID=0x%x ",
- mb->hash.fdir.hash, mb->hash.fdir.id);
+ MKDUMPSTR(print_buf, buf_size, cur_len,
+ "hash=0x%x ID=0x%x ",
+ mb->hash.fdir.hash, mb->hash.fdir.id);
}
if (ol_flags & PKT_RX_TIMESTAMP)
- printf(" - timestamp %"PRIu64" ", mb->timestamp);
+ MKDUMPSTR(print_buf, buf_size, cur_len,
+ " - timestamp %"PRIu64" ", mb->timestamp);
if (ol_flags & PKT_RX_QINQ)
- printf(" - QinQ VLAN tci=0x%x, VLAN tci outer=0x%x",
- mb->vlan_tci, mb->vlan_tci_outer);
+ MKDUMPSTR(print_buf, buf_size, cur_len,
+ " - QinQ VLAN tci=0x%x, VLAN tci outer=0x%x",
+ mb->vlan_tci, mb->vlan_tci_outer);
else if (ol_flags & PKT_RX_VLAN)
- printf(" - VLAN tci=0x%x", mb->vlan_tci);
+ MKDUMPSTR(print_buf, buf_size, cur_len,
+ " - VLAN tci=0x%x", mb->vlan_tci);
if (!is_rx && (ol_flags & PKT_TX_DYNF_METADATA))
- printf(" - Tx metadata: 0x%x",
- *RTE_FLOW_DYNF_METADATA(mb));
+ MKDUMPSTR(print_buf, buf_size, cur_len,
+ " - Tx metadata: 0x%x",
+ *RTE_FLOW_DYNF_METADATA(mb));
if (is_rx && (ol_flags & PKT_RX_DYNF_METADATA))
- printf(" - Rx metadata: 0x%x",
- *RTE_FLOW_DYNF_METADATA(mb));
+ MKDUMPSTR(print_buf, buf_size, cur_len,
+ " - Rx metadata: 0x%x",
+ *RTE_FLOW_DYNF_METADATA(mb));
if (mb->packet_type) {
rte_get_ptype_name(mb->packet_type, buf, sizeof(buf));
- printf(" - hw ptype: %s", buf);
+ MKDUMPSTR(print_buf, buf_size, cur_len,
+ " - hw ptype: %s", buf);
}
sw_packet_type = rte_net_get_ptype(mb, &hdr_lens,
RTE_PTYPE_ALL_MASK);
rte_get_ptype_name(sw_packet_type, buf, sizeof(buf));
- printf(" - sw ptype: %s", buf);
+ MKDUMPSTR(print_buf, buf_size, cur_len, " - sw ptype: %s", buf);
if (sw_packet_type & RTE_PTYPE_L2_MASK)
- printf(" - l2_len=%d", hdr_lens.l2_len);
+ MKDUMPSTR(print_buf, buf_size, cur_len, " - l2_len=%d",
+ hdr_lens.l2_len);
if (sw_packet_type & RTE_PTYPE_L3_MASK)
- printf(" - l3_len=%d", hdr_lens.l3_len);
+ MKDUMPSTR(print_buf, buf_size, cur_len, " - l3_len=%d",
+ hdr_lens.l3_len);
if (sw_packet_type & RTE_PTYPE_L4_MASK)
- printf(" - l4_len=%d", hdr_lens.l4_len);
+ MKDUMPSTR(print_buf, buf_size, cur_len, " - l4_len=%d",
+ hdr_lens.l4_len);
if (sw_packet_type & RTE_PTYPE_TUNNEL_MASK)
- printf(" - tunnel_len=%d", hdr_lens.tunnel_len);
+ MKDUMPSTR(print_buf, buf_size, cur_len,
+ " - tunnel_len=%d", hdr_lens.tunnel_len);
if (sw_packet_type & RTE_PTYPE_INNER_L2_MASK)
- printf(" - inner_l2_len=%d", hdr_lens.inner_l2_len);
+ MKDUMPSTR(print_buf, buf_size, cur_len,
+ " - inner_l2_len=%d", hdr_lens.inner_l2_len);
if (sw_packet_type & RTE_PTYPE_INNER_L3_MASK)
- printf(" - inner_l3_len=%d", hdr_lens.inner_l3_len);
+ MKDUMPSTR(print_buf, buf_size, cur_len,
+ " - inner_l3_len=%d", hdr_lens.inner_l3_len);
if (sw_packet_type & RTE_PTYPE_INNER_L4_MASK)
- printf(" - inner_l4_len=%d", hdr_lens.inner_l4_len);
+ MKDUMPSTR(print_buf, buf_size, cur_len,
+ " - inner_l4_len=%d", hdr_lens.inner_l4_len);
if (is_encapsulation) {
struct rte_ipv4_hdr *ipv4_hdr;
struct rte_ipv6_hdr *ipv6_hdr;
@@ -146,18 +181,27 @@
l2_len + l3_len + l4_len);
udp_port = RTE_BE_TO_CPU_16(udp_hdr->dst_port);
vx_vni = rte_be_to_cpu_32(vxlan_hdr->vx_vni);
- printf(" - VXLAN packet: packet type =%d, "
- "Destination UDP port =%d, VNI = %d",
- packet_type, udp_port, vx_vni >> 8);
+ MKDUMPSTR(print_buf, buf_size, cur_len,
+ " - VXLAN packet: packet type =%d, "
+ "Destination UDP port =%d, VNI = %d",
+ packet_type, udp_port, vx_vni >> 8);
}
}
- printf(" - %s queue=0x%x", is_rx ? "Receive" : "Send",
- (unsigned int) queue);
- printf("\n");
+ MKDUMPSTR(print_buf, buf_size, cur_len,
+ " - %s queue=0x%x", is_rx ? "Receive" : "Send",
+ (unsigned int) queue);
+ MKDUMPSTR(print_buf, buf_size, cur_len, "\n");
rte_get_rx_ol_flag_list(mb->ol_flags, buf, sizeof(buf));
- printf(" ol_flags: %s\n", buf);
+ MKDUMPSTR(print_buf, buf_size, cur_len,
+ " ol_flags: %s\n", buf);
if (rte_mbuf_check(mb, 1, &reason) < 0)
- printf("INVALID mbuf: %s\n", reason);
+ MKDUMPSTR(print_buf, buf_size, cur_len,
+ "INVALID mbuf: %s\n", reason);
+ if (cur_len >= buf_size)
+ printf("%s ...\n", print_buf);
+ else
+ printf("%s", print_buf);
+ cur_len = 0;
}
}
--
1.8.3.1
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