bianbu-linux-6.6/tools
Larysa Zaremba f46392ee3d bpftool: Specify XDP Hints ifname when loading program
Add ability to specify a network interface used to resolve XDP hints
kfuncs when loading program through bpftool.

Usage:

  bpftool prog load [...] xdpmeta_dev <ifname>

Writing just 'dev <ifname>' instead of 'xdpmeta_dev' is a very probable
mistake that results in not very descriptive errors,
so 'bpftool prog load [...] dev <ifname>' syntax becomes deprecated,
followed by 'bpftool map create [...] dev <ifname>' for consistency.

Now, to offload program, execute:

  bpftool prog load [...] offload_dev <ifname>

To offload map:

  bpftool map create [...] offload_dev <ifname>

'dev <ifname>' still performs offloading in the commands above, but now
triggers a warning and is excluded from bash completion.

'xdpmeta_dev' and 'offload_dev' are mutually exclusive options, because
'xdpmeta_dev' basically makes a program device-bound without loading it
onto the said device. For now, offloaded programs cannot use XDP hints [0],
but if this changes, using 'offload_dev <ifname>' should cover this case.

  [0] https://lore.kernel.org/bpf/a5a636cc-5b03-686f-4be0-000383b05cfc@linux.dev

Signed-off-by: Larysa Zaremba <larysa.zaremba@intel.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Quentin Monnet <quentin@isovalent.com>
Link: https://lore.kernel.org/bpf/20230517160103.1088185-1-larysa.zaremba@intel.com
2023-05-23 16:55:06 +02:00
..
accounting delayacct: track delays from IRQ/SOFTIRQ 2023-04-18 16:39:34 -07:00
arch Disable building BPF based features by default for v6.4. 2023-05-07 11:32:18 -07:00
bootconfig bootconfig: Fix testcase to increase max node 2023-03-22 01:00:28 +09:00
bpf bpftool: Specify XDP Hints ifname when loading program 2023-05-23 16:55:06 +02:00
build tools build: Add a feature test for scandirat(), that is not implemented so far in musl and uclibc 2023-04-04 13:18:17 -03:00
certs
cgroup tools:cgroup:memcg_shrinker remove redundant import 2023-01-18 17:12:59 -08:00
counter
debugging
edid
firewire
firmware
gpio tools: gpio: fix -c option of gpio-event-mon 2023-01-27 14:05:46 +01:00
hv
iio tools/iio/iio_utils:fix memory leak 2023-01-21 17:52:26 +00:00
include Disable building BPF based features by default for v6.4. 2023-05-07 11:32:18 -07:00
io_uring
kvm/kvm_stat tools/kvm_stat: use canonical ftrace path 2023-03-29 06:52:08 -04:00
laptop
leds
lib libbpf: Store zero fd to fd_array for loader kfunc relocation 2023-05-16 22:09:23 -07:00
memory-model LKMM scripting updates for v6.4 2023-04-24 12:02:25 -07:00
mm slab changes for 6.4 2023-04-25 13:00:41 -07:00
net/ynl tools: ynl: Rename ethtool to ethtool.py 2023-04-13 22:18:29 -07:00
objtool Objtool changes for v6.4: 2023-04-28 14:02:54 -07:00
pci
pcmcia
perf Disable building BPF based features by default for v6.4. 2023-05-07 11:32:18 -07:00
power Power management updates for 6.4-rc1 2023-04-25 18:44:10 -07:00
rcu tools: rcu: Add usage function and check for argument 2023-03-11 18:10:17 -08:00
scripts sh updates for v6.4 2023-04-27 17:41:23 -07:00
spi
testing selftests/bpf: Add xdp_feature selftest for bond device 2023-05-23 16:22:25 +02:00
thermal
time
tracing rtla/timerlat: Fix "Previous IRQ" auto analysis' line 2023-04-25 19:26:59 -04:00
usb
verification rv: Fix addition on an uninitialized variable 'run' 2023-04-25 17:02:13 -04:00
virtio tools/virtio: fix build caused by virtio_ring changes 2023-04-21 03:02:35 -04:00
wmi
Makefile tools/Makefile: do missed s/vm/mm/ 2023-04-18 14:22:12 -07:00