[RFC PATCH bpf-next v4 0/2] Replace mono_delivery_time with tstamp_type

From: Abhishek Chauhan
Date: Wed Apr 17 2024 - 20:48:45 EST


Patch 1 :- This patch takes care of only renaming the mono delivery
timestamp to tstamp_type with no change in functionality of
existing available code in kernel also
Starts assigning tstamp_type with either mono or real and
introduces a new enum in the skbuff.h, again no change in functionality
of the existing available code in kernel , just making the code scalable.

Patch 2 :- Additional bit was added to support tai timestamp type to
avoid tstamp drops in the forwarding path when testing TC-ETF.
With this patch i am updating bpf filter.c and not sure
what impacts it has towards BPF code.
I need upstream BPF community to help me in adding the necessary BPF
changes to avoid any BPF test case failures.
I have added some BPF changes as part of this commit to handle
cases of both tai and mono bit being set at the same time.

Abhishek Chauhan (2):
net: Rename mono_delivery_time to tstamp_type for scalabilty
net: Add additional bit to support clockid_t timestamp type

include/linux/skbuff.h | 61 +++++++++++++++----
include/net/inet_frag.h | 4 +-
include/uapi/linux/bpf.h | 1 +
net/bridge/netfilter/nf_conntrack_bridge.c | 6 +-
net/core/dev.c | 2 +-
net/core/filter.c | 50 ++++++++++++---
net/ieee802154/6lowpan/reassembly.c | 2 +-
net/ipv4/inet_fragment.c | 2 +-
net/ipv4/ip_fragment.c | 2 +-
net/ipv4/ip_output.c | 11 ++--
net/ipv4/raw.c | 2 +-
net/ipv4/tcp_output.c | 14 ++---
net/ipv6/ip6_output.c | 8 +--
net/ipv6/netfilter.c | 6 +-
net/ipv6/netfilter/nf_conntrack_reasm.c | 2 +-
net/ipv6/raw.c | 2 +-
net/ipv6/reassembly.c | 2 +-
net/ipv6/tcp_ipv6.c | 2 +-
net/packet/af_packet.c | 7 +--
net/sched/act_bpf.c | 4 +-
net/sched/cls_bpf.c | 4 +-
.../selftests/bpf/prog_tests/ctx_rewrite.c | 13 ++--
22 files changed, 139 insertions(+), 68 deletions(-)

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2.25.1