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numam-dpdk/app/test-pmd/util.c
David Marchand 3e6b0d5f69 app/testpmd: fix eth packet dump for small buffers 
In the rather unlikely case where the first segment is too small to
contain an ethernet header, we can't go and directly dereference the
mbuf data buffer.

Using rte_pktmbuf_read is a little more expensive but this is still
acceptable for a debugging feature.

Fixes: af75078fece3 ("first public release")
Cc: stable@dpdk.org

Signed-off-by: David Marchand <david.marchand@redhat.com>
Acked-by: Bernard Iremonger <bernard.iremonger@intel.com>
2019-07-29 23:30:33 +02:00

224 lines
6.5 KiB
C
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/* SPDX-License-Identifier: BSD-3-Clause
* Copyright(c) 2010-2014 Intel Corporation
* Copyright(c) 2018 Mellanox Technology
*/
#include <stdio.h>
#include <rte_net.h>
#include <rte_mbuf.h>
#include <rte_ether.h>
#include <rte_ethdev.h>
#include <rte_flow.h>
#include "testpmd.h"
static inline void
print_ether_addr(const char *what, const struct rte_ether_addr *eth_addr)
{
char buf[RTE_ETHER_ADDR_FMT_SIZE];
rte_ether_format_addr(buf, RTE_ETHER_ADDR_FMT_SIZE, eth_addr);
printf("%s%s", what, buf);
}
static inline void
dump_pkt_burst(uint16_t port_id, uint16_t queue, struct rte_mbuf *pkts[],
uint16_t nb_pkts, int is_rx)
{
struct rte_mbuf *mb;
const struct rte_ether_hdr *eth_hdr;
struct rte_ether_hdr _eth_hdr;
uint16_t eth_type;
uint64_t ol_flags;
uint16_t i, packet_type;
uint16_t is_encapsulation;
char buf[256];
struct rte_net_hdr_lens hdr_lens;
uint32_t sw_packet_type;
uint16_t udp_port;
uint32_t vx_vni;
const char *reason;
if (!nb_pkts)
return;
printf("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);
eth_type = RTE_BE_TO_CPU_16(eth_hdr->ether_type);
ol_flags = mb->ol_flags;
packet_type = mb->packet_type;
is_encapsulation = RTE_ETH_IS_TUNNEL_PKT(packet_type);
print_ether_addr(" src=", &eth_hdr->s_addr);
print_ether_addr(" - dst=", &eth_hdr->d_addr);
printf(" - 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);
}
if (ol_flags & PKT_RX_FDIR) {
printf(" - FDIR matched ");
if (ol_flags & PKT_RX_FDIR_ID)
printf("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);
else
printf("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);
if (ol_flags & PKT_RX_QINQ)
printf(" - 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);
if (mb->packet_type) {
rte_get_ptype_name(mb->packet_type, buf, sizeof(buf));
printf(" - 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);
if (sw_packet_type & RTE_PTYPE_L2_MASK)
printf(" - l2_len=%d", hdr_lens.l2_len);
if (sw_packet_type & RTE_PTYPE_L3_MASK)
printf(" - l3_len=%d", hdr_lens.l3_len);
if (sw_packet_type & RTE_PTYPE_L4_MASK)
printf(" - l4_len=%d", hdr_lens.l4_len);
if (sw_packet_type & RTE_PTYPE_TUNNEL_MASK)
printf(" - 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);
if (sw_packet_type & RTE_PTYPE_INNER_L3_MASK)
printf(" - 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);
if (is_encapsulation) {
struct rte_ipv4_hdr *ipv4_hdr;
struct rte_ipv6_hdr *ipv6_hdr;
struct rte_udp_hdr *udp_hdr;
uint8_t l2_len;
uint8_t l3_len;
uint8_t l4_len;
uint8_t l4_proto;
struct rte_vxlan_hdr *vxlan_hdr;
l2_len = sizeof(struct rte_ether_hdr);
/* Do not support ipv4 option field */
if (RTE_ETH_IS_IPV4_HDR(packet_type)) {
l3_len = sizeof(struct rte_ipv4_hdr);
ipv4_hdr = rte_pktmbuf_mtod_offset(mb,
struct rte_ipv4_hdr *,
l2_len);
l4_proto = ipv4_hdr->next_proto_id;
} else {
l3_len = sizeof(struct rte_ipv6_hdr);
ipv6_hdr = rte_pktmbuf_mtod_offset(mb,
struct rte_ipv6_hdr *,
l2_len);
l4_proto = ipv6_hdr->proto;
}
if (l4_proto == IPPROTO_UDP) {
udp_hdr = rte_pktmbuf_mtod_offset(mb,
struct rte_udp_hdr *,
l2_len + l3_len);
l4_len = sizeof(struct rte_udp_hdr);
vxlan_hdr = rte_pktmbuf_mtod_offset(mb,
struct rte_vxlan_hdr *,
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);
}
}
printf(" - %s queue=0x%x", is_rx ? "Receive" : "Send",
(unsigned int) queue);
printf("\n");
rte_get_rx_ol_flag_list(mb->ol_flags, buf, sizeof(buf));
printf(" ol_flags: %s\n", buf);
if (rte_mbuf_check(mb, 1, &reason) < 0)
printf("INVALID mbuf: %s\n", reason);
}
}
uint16_t
dump_rx_pkts(uint16_t port_id, uint16_t queue, struct rte_mbuf *pkts[],
uint16_t nb_pkts, __rte_unused uint16_t max_pkts,
__rte_unused void *user_param)
{
dump_pkt_burst(port_id, queue, pkts, nb_pkts, 1);
return nb_pkts;
}
uint16_t
dump_tx_pkts(uint16_t port_id, uint16_t queue, struct rte_mbuf *pkts[],
uint16_t nb_pkts, __rte_unused void *user_param)
{
dump_pkt_burst(port_id, queue, pkts, nb_pkts, 0);
return nb_pkts;
}
uint16_t
tx_pkt_set_md(uint16_t port_id, __rte_unused uint16_t queue,
struct rte_mbuf *pkts[], uint16_t nb_pkts,
__rte_unused void *user_param)
{
uint16_t i = 0;
/*
* Add metadata value to every Tx packet,
* and set ol_flags accordingly.
*/
for (i = 0; i < nb_pkts; i++) {
pkts[i]->tx_metadata = ports[port_id].tx_metadata;
pkts[i]->ol_flags |= PKT_TX_METADATA;
}
return nb_pkts;
}
void
add_tx_md_callback(portid_t portid)
{
struct rte_eth_dev_info dev_info;
uint16_t queue;
if (port_id_is_invalid(portid, ENABLED_WARN))
return;
rte_eth_dev_info_get(portid, &dev_info);
for (queue = 0; queue < dev_info.nb_tx_queues; queue++)
if (!ports[portid].tx_set_md_cb[queue])
ports[portid].tx_set_md_cb[queue] =
rte_eth_add_tx_callback(portid, queue,
tx_pkt_set_md, NULL);
}
void
remove_tx_md_callback(portid_t portid)
{
struct rte_eth_dev_info dev_info;
uint16_t queue;
if (port_id_is_invalid(portid, ENABLED_WARN))
return;
rte_eth_dev_info_get(portid, &dev_info);
for (queue = 0; queue < dev_info.nb_tx_queues; queue++)
if (ports[portid].tx_set_md_cb[queue]) {
rte_eth_remove_tx_callback(portid, queue,
ports[portid].tx_set_md_cb[queue]);
ports[portid].tx_set_md_cb[queue] = NULL;
}
}
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