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| author | David S. Miller <davem@davemloft.net> | 2022-03-04 12:17:11 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2022-03-04 12:17:11 +0000 |
| commit | 6af3b428cd02b09db79f0ee0265dcb8799d9327c (patch) | |
| tree | cd9c481d3a8436b3a1f1214084245dc37bbab61c /include/trace | |
| parent | 9f9919f73c94ae00af4e6ad45179282122f24988 (diff) | |
| parent | 6c2728b7c14164928cb7cb9c847dead101b2d503 (diff) | |
Merge branch 'skb-drop-reasons'
Menglong Dong says:
====================
net: dev: add skb drop reasons to net/core/dev.c
In the commit c504e5c2f964 ("net: skb: introduce kfree_skb_reason()"),
we added the support of reporting the reasons of skb drops to kfree_skb
tracepoint. And in this series patches, reasons for skb drops are added
to the link layer, which means that 'net/core/dev.c' is our target.
Following functions are processed:
sch_handle_egress()
__dev_xmit_skb()
enqueue_to_backlog()
do_xdp_generic()
sch_handle_ingress()
__netif_receive_skb_core()
and following new drop reasons are added (what they mean can be see in
the document of them):
SKB_DROP_REASON_QDISC_EGRESS
SKB_DROP_REASON_QDISC_DROP
SKB_DROP_REASON_CPU_BACKLOG
SKB_DROP_REASON_XDP
SKB_DROP_REASON_QDISC_INGRESS
SKB_DROP_REASON_PTYPE_ABSENT
In order to add skb drop reasons to kfree_skb_list(), the function
kfree_skb_list_reason() is introduced in the 2th patch, which will be
used in __dev_xmit_skb() in the 3th patch.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/trace')
| -rw-r--r-- | include/trace/events/skb.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/trace/events/skb.h b/include/trace/events/skb.h index 1977f301260d..c0769d943f8e 100644 --- a/include/trace/events/skb.h +++ b/include/trace/events/skb.h @@ -45,6 +45,12 @@ EM(SKB_DROP_REASON_NEIGH_FAILED, NEIGH_FAILED) \ EM(SKB_DROP_REASON_NEIGH_QUEUEFULL, NEIGH_QUEUEFULL) \ EM(SKB_DROP_REASON_NEIGH_DEAD, NEIGH_DEAD) \ + EM(SKB_DROP_REASON_TC_EGRESS, TC_EGRESS) \ + EM(SKB_DROP_REASON_QDISC_DROP, QDISC_DROP) \ + EM(SKB_DROP_REASON_CPU_BACKLOG, CPU_BACKLOG) \ + EM(SKB_DROP_REASON_XDP, XDP) \ + EM(SKB_DROP_REASON_TC_INGRESS, TC_INGRESS) \ + EM(SKB_DROP_REASON_PTYPE_ABSENT, PTYPE_ABSENT) \ EMe(SKB_DROP_REASON_MAX, MAX) #undef EM |