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mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2026-01-18 12:31:11 +00:00
Tonghao Zhang 27cb3de7f4 net: add net cookie for net device trace events
In a multi-network card or container environment, this is needed in order
to differentiate between trace events relating to net devices that exist
in different network namespaces and share the same name.

for xmit_timeout trace events:
[002] ..s1.  1838.311662: net_dev_xmit_timeout: dev=eth0 driver=virtio_net queue=10 net_cookie=3
[007] ..s1.  1839.335650: net_dev_xmit_timeout: dev=eth0 driver=virtio_net queue=10 net_cookie=4100
[007] ..s1.  1844.455659: net_dev_xmit_timeout: dev=eth0 driver=virtio_net queue=10 net_cookie=3
[002] ..s1.  1850.087647: net_dev_xmit_timeout: dev=eth0 driver=virtio_net queue=10 net_cookie=3

Cc: Eran Ben Elisha <eranbe@mellanox.com>
Cc: Jiri Pirko <jiri@mellanox.com>
Cc: Cong Wang <xiyou.wangcong@gmail.com>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Simon Horman <horms@kernel.org>
Cc: Paolo Abeni <pabeni@redhat.com>
Suggested-by: Ido Schimmel <idosch@idosch.org>
Signed-off-by: Tonghao Zhang <tonghao@bamaicloud.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Link: https://patch.msgid.link/20251028043244.82288-1-tonghao@bamaicloud.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-11-04 09:59:19 +01:00

337 lines
8.3 KiB
C

/* SPDX-License-Identifier: GPL-2.0 */
#undef TRACE_SYSTEM
#define TRACE_SYSTEM net
#if !defined(_TRACE_NET_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_NET_H
#include <linux/skbuff.h>
#include <linux/netdevice.h>
#include <linux/if_vlan.h>
#include <linux/ip.h>
#include <linux/tracepoint.h>
TRACE_EVENT(net_dev_start_xmit,
TP_PROTO(const struct sk_buff *skb, const struct net_device *dev),
TP_ARGS(skb, dev),
TP_STRUCT__entry(
__string( name, dev->name )
__field( u16, queue_mapping )
__field( const void *, skbaddr )
__field( bool, vlan_tagged )
__field( u16, vlan_proto )
__field( u16, vlan_tci )
__field( u16, protocol )
__field( u8, ip_summed )
__field( unsigned int, len )
__field( unsigned int, data_len )
__field( int, network_offset )
__field( bool, transport_offset_valid)
__field( int, transport_offset)
__field( u8, tx_flags )
__field( u16, gso_size )
__field( u16, gso_segs )
__field( u16, gso_type )
__field( u64, net_cookie )
),
TP_fast_assign(
__assign_str(name);
__entry->queue_mapping = skb->queue_mapping;
__entry->skbaddr = skb;
__entry->vlan_tagged = skb_vlan_tag_present(skb);
__entry->vlan_proto = ntohs(skb->vlan_proto);
__entry->vlan_tci = skb_vlan_tag_get(skb);
__entry->protocol = ntohs(skb->protocol);
__entry->ip_summed = skb->ip_summed;
__entry->len = skb->len;
__entry->data_len = skb->data_len;
__entry->network_offset = skb_network_offset(skb);
__entry->transport_offset_valid =
skb_transport_header_was_set(skb);
__entry->transport_offset = skb_transport_header_was_set(skb) ?
skb_transport_offset(skb) : 0;
__entry->tx_flags = skb_shinfo(skb)->tx_flags;
__entry->gso_size = skb_shinfo(skb)->gso_size;
__entry->gso_segs = skb_shinfo(skb)->gso_segs;
__entry->gso_type = skb_shinfo(skb)->gso_type;
__entry->net_cookie = dev_net(dev)->net_cookie;
),
TP_printk("dev=%s queue_mapping=%u skbaddr=%p vlan_tagged=%d vlan_proto=0x%04x vlan_tci=0x%04x protocol=0x%04x ip_summed=%d len=%u data_len=%u network_offset=%d transport_offset_valid=%d transport_offset=%d tx_flags=%d gso_size=%d gso_segs=%d gso_type=%#x net_cookie=%llu",
__get_str(name), __entry->queue_mapping, __entry->skbaddr,
__entry->vlan_tagged, __entry->vlan_proto, __entry->vlan_tci,
__entry->protocol, __entry->ip_summed, __entry->len,
__entry->data_len,
__entry->network_offset, __entry->transport_offset_valid,
__entry->transport_offset, __entry->tx_flags,
__entry->gso_size, __entry->gso_segs,
__entry->gso_type, __entry->net_cookie)
);
TRACE_EVENT(net_dev_xmit,
TP_PROTO(struct sk_buff *skb,
int rc,
struct net_device *dev,
unsigned int skb_len),
TP_ARGS(skb, rc, dev, skb_len),
TP_STRUCT__entry(
__field( void *, skbaddr )
__field( unsigned int, len )
__field( int, rc )
__string( name, dev->name )
__field( u64, net_cookie )
),
TP_fast_assign(
__entry->skbaddr = skb;
__entry->len = skb_len;
__entry->rc = rc;
__entry->net_cookie = dev_net(dev)->net_cookie;
__assign_str(name);
),
TP_printk("dev=%s skbaddr=%p len=%u rc=%d net_cookie=%llu",
__get_str(name), __entry->skbaddr,
__entry->len, __entry->rc,
__entry->net_cookie)
);
TRACE_EVENT(net_dev_xmit_timeout,
TP_PROTO(struct net_device *dev,
int queue_index),
TP_ARGS(dev, queue_index),
TP_STRUCT__entry(
__string( name, dev->name )
__string( driver, netdev_drivername(dev))
__field( int, queue_index )
__field( u64, net_cookie )
),
TP_fast_assign(
__assign_str(name);
__assign_str(driver);
__entry->queue_index = queue_index;
__entry->net_cookie = dev_net(dev)->net_cookie;
),
TP_printk("dev=%s driver=%s queue=%d net_cookie=%llu",
__get_str(name), __get_str(driver),
__entry->queue_index, __entry->net_cookie)
);
DECLARE_EVENT_CLASS(net_dev_template,
TP_PROTO(struct sk_buff *skb),
TP_ARGS(skb),
TP_STRUCT__entry(
__field( void *, skbaddr )
__field( unsigned int, len )
__string( name, skb->dev->name )
__field( u64, net_cookie )
),
TP_fast_assign(
__entry->skbaddr = skb;
__entry->len = skb->len;
__entry->net_cookie = dev_net(skb->dev)->net_cookie;
__assign_str(name);
),
TP_printk("dev=%s skbaddr=%p len=%u net_cookie=%llu",
__get_str(name), __entry->skbaddr,
__entry->len,
__entry->net_cookie)
)
DEFINE_EVENT(net_dev_template, net_dev_queue,
TP_PROTO(struct sk_buff *skb),
TP_ARGS(skb)
);
DEFINE_EVENT(net_dev_template, netif_receive_skb,
TP_PROTO(struct sk_buff *skb),
TP_ARGS(skb)
);
DEFINE_EVENT(net_dev_template, netif_rx,
TP_PROTO(struct sk_buff *skb),
TP_ARGS(skb)
);
DECLARE_EVENT_CLASS(net_dev_rx_verbose_template,
TP_PROTO(const struct sk_buff *skb),
TP_ARGS(skb),
TP_STRUCT__entry(
__string( name, skb->dev->name )
__field( unsigned int, napi_id )
__field( u16, queue_mapping )
__field( const void *, skbaddr )
__field( bool, vlan_tagged )
__field( u16, vlan_proto )
__field( u16, vlan_tci )
__field( u16, protocol )
__field( u8, ip_summed )
__field( u32, hash )
__field( bool, l4_hash )
__field( unsigned int, len )
__field( unsigned int, data_len )
__field( unsigned int, truesize )
__field( bool, mac_header_valid)
__field( int, mac_header )
__field( unsigned char, nr_frags )
__field( u16, gso_size )
__field( u16, gso_type )
__field( u64, net_cookie )
),
TP_fast_assign(
__assign_str(name);
#ifdef CONFIG_NET_RX_BUSY_POLL
__entry->napi_id = skb->napi_id;
#else
__entry->napi_id = 0;
#endif
__entry->queue_mapping = skb->queue_mapping;
__entry->skbaddr = skb;
__entry->vlan_tagged = skb_vlan_tag_present(skb);
__entry->vlan_proto = ntohs(skb->vlan_proto);
__entry->vlan_tci = skb_vlan_tag_get(skb);
__entry->protocol = ntohs(skb->protocol);
__entry->ip_summed = skb->ip_summed;
__entry->hash = skb->hash;
__entry->l4_hash = skb->l4_hash;
__entry->len = skb->len;
__entry->data_len = skb->data_len;
__entry->truesize = skb->truesize;
__entry->mac_header_valid = skb_mac_header_was_set(skb);
__entry->mac_header = skb_mac_header(skb) - skb->data;
__entry->nr_frags = skb_shinfo(skb)->nr_frags;
__entry->gso_size = skb_shinfo(skb)->gso_size;
__entry->gso_type = skb_shinfo(skb)->gso_type;
__entry->net_cookie = dev_net(skb->dev)->net_cookie;
),
TP_printk("dev=%s napi_id=%#x queue_mapping=%u skbaddr=%p vlan_tagged=%d vlan_proto=0x%04x vlan_tci=0x%04x protocol=0x%04x ip_summed=%d hash=0x%08x l4_hash=%d len=%u data_len=%u truesize=%u mac_header_valid=%d mac_header=%d nr_frags=%d gso_size=%d gso_type=%#x net_cookie=%llu",
__get_str(name), __entry->napi_id, __entry->queue_mapping,
__entry->skbaddr, __entry->vlan_tagged, __entry->vlan_proto,
__entry->vlan_tci, __entry->protocol, __entry->ip_summed,
__entry->hash, __entry->l4_hash, __entry->len,
__entry->data_len, __entry->truesize,
__entry->mac_header_valid, __entry->mac_header,
__entry->nr_frags, __entry->gso_size,
__entry->gso_type, __entry->net_cookie)
);
DEFINE_EVENT(net_dev_rx_verbose_template, napi_gro_frags_entry,
TP_PROTO(const struct sk_buff *skb),
TP_ARGS(skb)
);
DEFINE_EVENT(net_dev_rx_verbose_template, napi_gro_receive_entry,
TP_PROTO(const struct sk_buff *skb),
TP_ARGS(skb)
);
DEFINE_EVENT(net_dev_rx_verbose_template, netif_receive_skb_entry,
TP_PROTO(const struct sk_buff *skb),
TP_ARGS(skb)
);
DEFINE_EVENT(net_dev_rx_verbose_template, netif_receive_skb_list_entry,
TP_PROTO(const struct sk_buff *skb),
TP_ARGS(skb)
);
DEFINE_EVENT(net_dev_rx_verbose_template, netif_rx_entry,
TP_PROTO(const struct sk_buff *skb),
TP_ARGS(skb)
);
DECLARE_EVENT_CLASS(net_dev_rx_exit_template,
TP_PROTO(int ret),
TP_ARGS(ret),
TP_STRUCT__entry(
__field(int, ret)
),
TP_fast_assign(
__entry->ret = ret;
),
TP_printk("ret=%d", __entry->ret)
);
DEFINE_EVENT(net_dev_rx_exit_template, napi_gro_frags_exit,
TP_PROTO(int ret),
TP_ARGS(ret)
);
DEFINE_EVENT(net_dev_rx_exit_template, napi_gro_receive_exit,
TP_PROTO(int ret),
TP_ARGS(ret)
);
DEFINE_EVENT(net_dev_rx_exit_template, netif_receive_skb_exit,
TP_PROTO(int ret),
TP_ARGS(ret)
);
DEFINE_EVENT(net_dev_rx_exit_template, netif_rx_exit,
TP_PROTO(int ret),
TP_ARGS(ret)
);
DEFINE_EVENT(net_dev_rx_exit_template, netif_receive_skb_list_exit,
TP_PROTO(int ret),
TP_ARGS(ret)
);
#endif /* _TRACE_NET_H */
/* This part must be outside protection */
#include <trace/define_trace.h>