Jesper Dangaard Brouer 915efd8a44 xdp: bpf_xdp_metadata use EOPNOTSUPP for no driver support ... When driver doesn't implement a bpf_xdp_metadata kfunc the fallback implementation returns EOPNOTSUPP, which indicate device driver doesn't implement this kfunc. Currently many drivers also return EOPNOTSUPP when the hint isn't available, which is ambiguous from an API point of view. Instead change drivers to return ENODATA in these cases. There can be natural cases why a driver doesn't provide any hardware info for a specific hint, even on a frame to frame basis (e.g. PTP). Lets keep these cases as separate return codes. When describing the return values, adjust the function kernel-doc layout to get proper rendering for the return values. Fixes: ab46182d0d ("net/mlx4_en: Support RX XDP metadata") Fixes: bc8d405b1b ("net/mlx5e: Support RX XDP metadata") Fixes: 306531f024 ("veth: Support RX XDP metadata") Fixes: 3d76a4d3d4 ("bpf: XDP metadata RX kfuncs") Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com> Acked-by: Stanislav Fomichev <sdf@google.com> Acked-by: Toke Høiland-Jørgensen <toke@redhat.com> Acked-by: Tariq Toukan <tariqt@nvidia.com> Link: https://lore.kernel.org/r/167940675120.2718408.8176058626864184420.stgit@firesoul Signed-off-by: Alexei Starovoitov <ast@kernel.org>		2023-03-22 09:11:09 -07:00
..
caif	tty: cumulate and document tty_struct::flow* members	2021-05-13 16:57:16 +02:00
device_drivers	It has been a moderately calm cycle for documentation; the significant	2023-02-22 12:00:20 -08:00
devlink	sfc: add devlink info support for ef100	2023-02-16 12:03:12 +01:00
dsa	Documentation: networking: correct spelling	2023-01-31 13:00:47 +01:00
mac80211_hwsim	…
6lowpan.rst	…
6pack.rst	…
af_xdp.rst	Documentation: networking: correct spelling	2023-01-31 13:00:47 +01:00
alias.rst	…
arcnet-hardware.rst	Documentation: networking: correct spelling	2023-01-31 13:00:47 +01:00
arcnet.rst	…
atm.rst	…
ax25.rst	…
bareudp.rst	…
batman-adv.rst	batman-adv: Fix mailing list address	2023-01-21 19:01:59 +01:00
bonding.rst	Documentation: bonding: correct xmit hash steps	2022-12-02 10:46:45 +00:00
bridge.rst	docs: networking: Fix bridge documentation URL	2023-01-25 22:44:27 -08:00
can.rst	Documentation: networking: correct spelling	2023-01-31 13:00:47 +01:00
can_ucan_protocol.rst	Documentation: networking: correct spelling	2023-01-31 13:00:47 +01:00
cdc_mbim.rst	Documentation: networking: correct spelling	2023-01-31 13:00:47 +01:00
checksum-offloads.rst	…
dccp.rst	…
dctcp.rst	…
dns_resolver.rst	…
driver.rst	Documentation: networking: correct possessive "its"	2022-08-31 12:36:08 -07:00
eql.rst	…
ethtool-netlink.rst	net: ethtool: extend ringparam set/get APIs for rx_push	2023-02-13 11:05:12 +00:00
failover.rst	…
fib_trie.rst	…
filter.rst	treewide: use get_random_u32() when possible	2022-10-11 17:42:58 -06:00
gen_stats.rst	…
generic-hdlc.rst	…
generic_netlink.rst	Documentation: networking: Update generic_netlink_howto URL	2022-11-23 17:25:02 -08:00
gtp.rst	Documentation: networking: correct spelling	2023-01-31 13:00:47 +01:00
ieee802154.rst	Documentation: networking: correct spelling	2023-01-31 13:00:47 +01:00
ila.rst	…
index.rst	bpf: Document XDP RX metadata	2023-01-23 09:38:10 -08:00
ioam6-sysctl.rst	ipv6: ioam: Documentation for new IOAM sysctls	2021-07-21 08:14:33 -07:00
ip-sysctl.rst	neighbor: fix proxy_delay usage when it is zero	2023-02-01 21:02:54 -08:00
ip_dynaddr.rst	…
ipddp.rst	…
ipsec.rst	…
ipv6.rst	…
ipvlan.rst	Documentation: networking: correct spelling	2023-01-31 13:00:47 +01:00
ipvs-sysctl.rst	ipvs: run_estimation should control the kthread tasks	2022-12-10 22:44:43 +01:00
j1939.rst	Documentation: networking: correct spelling	2023-01-31 13:00:47 +01:00
kapi.rst	…
kcm.rst	…
l2tp.rst	Documentation: networking: correct possessive "its"	2022-08-31 12:36:08 -07:00
lapb-module.rst	…
mac80211-auth-assoc-deauth.txt	…
mac80211-injection.rst	…
mctp.rst	mctp: Add SIOCMCTP{ALLOC,DROP}TAG ioctls for tag control	2022-02-09 12:00:11 +00:00
mpls-sysctl.rst	…
mptcp-sysctl.rst	Documentation: mptcp: fix pm_type formatting	2022-09-13 10:18:44 +02:00
msg_zerocopy.rst	docs: net: fix inaccuracies in msg_zerocopy.rst	2023-02-24 18:31:31 -08:00
multiqueue.rst	…
net_dim.rst	…
net_failover.rst	Documentation: networking: correct spelling	2023-01-31 13:00:47 +01:00
netconsole.rst	Documentation: networking: correct spelling	2023-01-31 13:00:47 +01:00
netdev-features.rst	net: hsr: add offloading support	2021-02-11 13:24:44 -08:00
netdevices.rst	net: bonding: move ioctl handling to private ndo operation	2021-07-27 20:11:45 +01:00
netfilter-sysctl.rst	…
netif-msg.rst	…
nexthop-group-resilient.rst	Documentation: net: Document resilient next-hop groups	2021-03-29 13:51:38 -07:00
nf_conntrack-sysctl.rst	netfilter: conntrack: unify established states for SCTP paths	2023-01-24 09:52:52 +01:00
nf_flowtable.rst	docs: nf_flowtable: fix compilation and warnings	2021-03-25 17:42:02 -07:00
nfc.rst	…
openvswitch.rst	…
operstates.rst	docs: operstates: document IF_OPER_TESTING	2021-08-02 15:16:04 +01:00
packet_mmap.rst	docs: networking: Replace strncpy() with strscpy()	2021-06-04 11:21:43 -06:00
page_pool.rst	Documentation: networking: correct spelling	2023-01-31 13:00:47 +01:00
phonet.rst	Documentation: networking: correct spelling	2023-01-31 13:00:47 +01:00
phy.rst	Documentation: networking: correct spelling	2023-01-31 13:00:47 +01:00
pktgen.rst	pktgen: document the latest pktgen usage options	2021-08-25 13:44:30 +01:00
plip.rst	…
ppp_generic.rst	…
proc_net_tcp.rst	…
radiotap-headers.rst	…
rds.rst	Doc: networking: Fix the title's Sphinx overline in rds.rst	2021-11-29 15:18:21 -07:00
regulatory.rst	Documentation: networking: correct spelling	2023-01-31 13:00:47 +01:00
representors.rst	docs: net: add an explanation of VF (and other) Representors	2022-09-21 07:31:38 -07:00
rxrpc.rst	Documentation: networking: correct spelling	2023-01-31 13:00:47 +01:00
scaling.rst	…
sctp.rst	…
secid.rst	…
seg6-sysctl.rst	doc: move seg6_flowlabel to seg6-sysctl.rst	2021-04-14 13:13:15 -07:00
segmentation-offloads.rst	…
sfp-phylink.rst	doc: sfp-phylink: Fix a broken reference	2022-08-02 21:45:07 -07:00
skbuff.rst	skbuff: render the checksum comment to documentation	2022-05-10 17:48:37 -07:00
smc-sysctl.rst	net/smc: Unbind r/w buffer size from clcsock and make them tunable	2022-09-22 12:58:21 +02:00
snmp_counter.rst	Documentation: networking: correct spelling	2023-01-31 13:00:47 +01:00
statistics.rst	docs: ethtool-netlink: document interface for MAC Merge layer	2023-01-23 12:44:18 +00:00
strparser.rst	…
switchdev.rst	docs: net: add an explanation of VF (and other) Representors	2022-09-21 07:31:38 -07:00
sysfs-tagging.rst	Documentation: networking: correct spelling	2023-01-31 13:00:47 +01:00
tc-actions-env-rules.rst	…
tc-queue-filters.rst	Documentation: networking: TC queue based filtering	2022-10-25 10:32:40 +02:00
tcp-thin.rst	…
team.rst	…
timestamping.rst	net_tstamp: add SOF_TIMESTAMPING_OPT_ID_TCP	2022-12-08 19:49:21 -08:00
tipc.rst	Documentation: add more details in tipc.rst	2021-07-01 13:18:18 -07:00
tls-offload-layers.svg	…
tls-offload-reorder-bad.svg	…
tls-offload-reorder-good.svg	…
tls-offload.rst	…
tls.rst	tls: rx: add counter for NoPad violations	2022-07-11 19:48:33 -07:00
tproxy.rst	…
tuntap.rst	docs: networking: Replace strncpy() with strscpy()	2021-06-04 11:21:43 -06:00
udplite.rst	…
vrf.rst	doc: Document unexpected tcp_l3mdev_accept=1 behavior	2021-08-23 11:53:24 +01:00
vxlan.rst	…
x25-iface.rst	net: x25: Queue received packets in the drivers instead of per-CPU queues	2021-04-05 11:42:12 -07:00
x25.rst	…
xdp-rx-metadata.rst	xdp: bpf_xdp_metadata use EOPNOTSUPP for no driver support	2023-03-22 09:11:09 -07:00
xfrm_device.rst	xfrm: extend add state callback to set failure reason	2023-01-26 16:28:48 -08:00
xfrm_proc.rst	…
xfrm_sync.rst	…
xfrm_sysctl.rst	…