From: Daniel Borkmann <daniel@iogearbox•net>
To: Jesper Dangaard Brouer <brouer@redhat•com>, netdev@vger•kernel.org
Cc: Daniel Borkmann <borkmann@iogearbox•net>,
John Fastabend <john.fastabend@gmail•com>
Subject: Re: [V2 PATCH net-next 4/5] xdp: remove net_device names from xdp_redirect tracepoint
Date: Wed, 23 Aug 2017 12:58:59 +0200 [thread overview]
Message-ID: <599D5FF3.7040604@iogearbox.net> (raw)
In-Reply-To: <150348333529.23476.10681237706586293307.stgit@firesoul>
On 08/23/2017 12:15 PM, Jesper Dangaard Brouer wrote:
> There is too much overhead in the current trace_xdp_redirect
> tracepoint as it does strcpy and strlen on the net_device names.
>
> Besides, exposing the ifindex/index is actually the information that
> is needed in the tracepoint to diagnose issues. When a lookup fails
> (either ifindex or devmap index) then there is a need for saying which
> to_index that have issues.
>
> V2: Adjust args to be aligned with trace_xdp_exception.
>
> Signed-off-by: Jesper Dangaard Brouer <brouer@redhat•com>
Acked-by: Daniel Borkmann <daniel@iogearbox•net>
next prev parent reply other threads:[~2017-08-23 10:59 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-08-22 20:47 [PATCH net-next 0/5] xdp: more work on xdp tracepoints Jesper Dangaard Brouer
2017-08-22 20:47 ` [PATCH net-next 1/5] xdp: remove bpf_warn_invalid_xdp_redirect Jesper Dangaard Brouer
2017-08-22 21:19 ` Daniel Borkmann
2017-08-22 20:47 ` [PATCH net-next 2/5] xdp: make generic xdp redirect use tracepoint trace_xdp_redirect Jesper Dangaard Brouer
2017-08-22 21:21 ` Daniel Borkmann
2017-08-22 20:47 ` [PATCH net-next 3/5] ixgbe: use return codes from ndo_xdp_xmit that are distinguishable Jesper Dangaard Brouer
2017-08-22 21:21 ` Daniel Borkmann
2017-08-22 20:47 ` [PATCH net-next 4/5] xdp: remove net_device names from xdp_redirect tracepoint Jesper Dangaard Brouer
2017-08-22 21:23 ` Daniel Borkmann
2017-08-22 20:47 ` [PATCH net-next 5/5] xdp: get tracepoints xdp_exception and xdp_redirect in sync Jesper Dangaard Brouer
2017-08-22 21:30 ` Daniel Borkmann
2017-08-23 7:41 ` Jesper Dangaard Brouer
2017-08-23 8:54 ` Daniel Borkmann
2017-08-23 10:15 ` [V2 PATCH net-next 0/5] xdp: more work on xdp tracepoints Jesper Dangaard Brouer
2017-08-23 10:15 ` [V2 PATCH net-next 1/5] xdp: remove bpf_warn_invalid_xdp_redirect Jesper Dangaard Brouer
2017-08-23 10:15 ` [V2 PATCH net-next 2/5] xdp: make generic xdp redirect use tracepoint trace_xdp_redirect Jesper Dangaard Brouer
2017-08-23 10:15 ` [V2 PATCH net-next 3/5] ixgbe: use return codes from ndo_xdp_xmit that are distinguishable Jesper Dangaard Brouer
2017-08-23 10:15 ` [V2 PATCH net-next 4/5] xdp: remove net_device names from xdp_redirect tracepoint Jesper Dangaard Brouer
2017-08-23 10:58 ` Daniel Borkmann [this message]
2017-08-23 10:15 ` [V2 PATCH net-next 5/5] xdp: get tracepoints xdp_exception and xdp_redirect in sync Jesper Dangaard Brouer
2017-08-23 10:59 ` Daniel Borkmann
2017-08-23 11:16 ` [V2 PATCH net-next 0/5] xdp: more work on xdp tracepoints Jesper Dangaard Brouer
2017-08-24 0:07 ` David Miller
2017-08-24 10:32 ` [V3 " Jesper Dangaard Brouer
2017-08-24 10:33 ` [V3 PATCH net-next 1/5] xdp: remove bpf_warn_invalid_xdp_redirect Jesper Dangaard Brouer
2017-08-24 10:33 ` [V3 PATCH net-next 2/5] xdp: make generic xdp redirect use tracepoint trace_xdp_redirect Jesper Dangaard Brouer
2017-08-24 10:33 ` [V3 PATCH net-next 3/5] ixgbe: use return codes from ndo_xdp_xmit that are distinguishable Jesper Dangaard Brouer
2017-08-24 10:33 ` [V3 PATCH net-next 4/5] xdp: remove net_device names from xdp_redirect tracepoint Jesper Dangaard Brouer
2017-08-24 10:33 ` [V3 PATCH net-next 5/5] xdp: get tracepoints xdp_exception and xdp_redirect in sync Jesper Dangaard Brouer
2017-08-24 14:46 ` [V3 PATCH net-next 0/5] xdp: more work on xdp tracepoints John Fastabend
2017-08-24 19:00 ` David Miller
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