From: David Ahern <dsahern@kernel•org>
To: netdev@vger•kernel.org
Cc: davem@davemloft•net, kuba@kernel•org, brouer@redhat•com,
toke@redhat•com, daniel@iogearbox•net, john.fastabend@gmail•com,
ast@kernel•org, kafai@fb•com, songliubraving@fb•com, yhs@fb•com,
andriin@fb•com, dsahern@gmail•com,
David Ahern <dsahern@kernel•org>
Subject: [PATCH v2 bpf-next 0/5] bpf: Add support for XDP programs in DEVMAP entries
Date: Wed, 27 May 2020 18:14:18 -0600 [thread overview]
Message-ID: <20200528001423.58575-1-dsahern@kernel.org> (raw)
Implementation of Daniel's proposal for allowing DEVMAP entries to be
a device index, program fd pair.
Programs are run after XDP_REDIRECT and have access to both Rx device
and Tx device.
v2
- moved dev_map_ext_val definition to uapi to formalize the API for devmap
extensions; add bpf_ prefix to the prog_fd and prog_id entries
- changed devmap code to handle struct in a way that it can support future
extensions
- fixed subject in libbpf patch
v1
- fixed prog put on invalid program - Toke
- changed write value from id to fd per Toke's comments about capabilities
- add test cases
David Ahern (5):
devmap: Formalize map value as a named struct
bpf: Add support to attach bpf program to a devmap entry
xdp: Add xdp_txq_info to xdp_buff
libbpf: Add SEC name for xdp programs attached to device map
selftest: Add tests for XDP programs in devmap entries
include/linux/bpf.h | 5 +
include/net/xdp.h | 5 +
include/uapi/linux/bpf.h | 12 ++
kernel/bpf/devmap.c | 119 +++++++++++++++---
net/core/dev.c | 18 +++
net/core/filter.c | 17 +++
tools/include/uapi/linux/bpf.h | 12 ++
tools/lib/bpf/libbpf.c | 2 +
.../bpf/prog_tests/xdp_devmap_attach.c | 94 ++++++++++++++
.../selftests/bpf/progs/test_xdp_devmap.c | 19 +++
.../selftests/bpf/progs/test_xdp_devmap2.c | 19 +++
.../bpf/progs/test_xdp_with_devmap.c | 17 +++
12 files changed, 322 insertions(+), 17 deletions(-)
create mode 100644 tools/testing/selftests/bpf/prog_tests/xdp_devmap_attach.c
create mode 100644 tools/testing/selftests/bpf/progs/test_xdp_devmap.c
create mode 100644 tools/testing/selftests/bpf/progs/test_xdp_devmap2.c
create mode 100644 tools/testing/selftests/bpf/progs/test_xdp_with_devmap.c
--
2.21.1 (Apple Git-122.3)
next reply other threads:[~2020-05-28 0:14 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-28 0:14 David Ahern [this message]
2020-05-28 0:14 ` [PATCH v2 bpf-next 1/5] devmap: Formalize map value as a named struct David Ahern
2020-05-28 7:01 ` Andrii Nakryiko
2020-05-28 22:37 ` David Ahern
2020-05-28 0:14 ` [PATCH v2 bpf-next 2/5] bpf: Add support to attach bpf program to a devmap entry David Ahern
2020-05-28 7:01 ` Andrii Nakryiko
2020-05-28 22:40 ` David Ahern
2020-05-28 22:54 ` Andrii Nakryiko
2020-05-28 8:54 ` Toke Høiland-Jørgensen
2020-05-28 0:14 ` [PATCH v2 bpf-next 3/5] xdp: Add xdp_txq_info to xdp_buff David Ahern
2020-05-28 0:14 ` [PATCH v2 bpf-next 4/5] libbpf: Add SEC name for xdp programs attached to device map David Ahern
2020-05-28 7:04 ` Andrii Nakryiko
2020-05-28 22:49 ` David Ahern
2020-05-28 0:14 ` [PATCH v2 bpf-next 5/5] selftest: Add tests for XDP programs in devmap entries David Ahern
2020-05-28 7:08 ` Andrii Nakryiko
2020-05-28 10:25 ` Jesper Dangaard Brouer
2020-05-28 22:56 ` David Ahern
2020-05-28 22:54 ` David Ahern
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