| Message ID | 20220304060046.115414-1-imagedong@tencent.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | net: dev: add skb drop reasons to net/core/dev.c | expand |
Hello: This series was applied to netdev/net-next.git (master) by David S. Miller <davem@davemloft.net>: On Fri, 4 Mar 2022 14:00:39 +0800 you wrote: > From: Menglong Dong <imagedong@tencent.com> > > 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. > > [...] Here is the summary with links: - [net-next,v2,1/7] net: dev: use kfree_skb_reason() for sch_handle_egress() https://git.kernel.org/netdev/net-next/c/98b4d7a4e737 - [net-next,v2,2/7] net: skb: introduce the function kfree_skb_list_reason() https://git.kernel.org/netdev/net-next/c/215b0f1963d4 - [net-next,v2,3/7] net: dev: add skb drop reasons to __dev_xmit_skb() https://git.kernel.org/netdev/net-next/c/7faef0547f4c - [net-next,v2,4/7] net: dev: use kfree_skb_reason() for enqueue_to_backlog() https://git.kernel.org/netdev/net-next/c/44f0bd40803c - [net-next,v2,5/7] net: dev: use kfree_skb_reason() for do_xdp_generic() https://git.kernel.org/netdev/net-next/c/7e726ed81e1d - [net-next,v2,6/7] net: dev: use kfree_skb_reason() for sch_handle_ingress() https://git.kernel.org/netdev/net-next/c/a568aff26ac0 - [net-next,v2,7/7] net: dev: use kfree_skb_reason() for __netif_receive_skb_core() https://git.kernel.org/netdev/net-next/c/6c2728b7c141 You are awesome, thank you!
From: Menglong Dong <imagedong@tencent.com> 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_TC_EGRESS SKB_DROP_REASON_QDISC_DROP SKB_DROP_REASON_CPU_BACKLOG SKB_DROP_REASON_XDP SKB_DROP_REASON_TC_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. Changes since v1: - rename SKB_DROP_REASON_QDISC_EGRESS to SKB_DROP_REASON_TC_EGRESS in the 1th patch - remove the 'else' in the 4th patch - rename SKB_DROP_REASON_QDISC_INGRESS to SKB_DROP_REASON_TC_INGRESS in the 6th patch Menglong Dong (7): net: dev: use kfree_skb_reason() for sch_handle_egress() net: skb: introduce the function kfree_skb_list_reason() net: dev: add skb drop reasons to __dev_xmit_skb() net: dev: use kfree_skb_reason() for enqueue_to_backlog() net: dev: use kfree_skb_reason() for do_xdp_generic() net: dev: use kfree_skb_reason() for sch_handle_ingress() net: dev: use kfree_skb_reason() for __netif_receive_skb_core() include/linux/skbuff.h | 26 +++++++++++++++++++++++++- include/trace/events/skb.h | 6 ++++++ net/core/dev.c | 24 +++++++++++++++--------- net/core/skbuff.c | 7 ++++--- 4 files changed, 50 insertions(+), 13 deletions(-)