linux-stable/include/net
Vladimir Oltean 295ab96f47 net: dsa: provide switch operations for tracking the master state
Certain drivers may need to send management traffic to the switch for
things like register access, FDB dump, etc, to accelerate what their
slow bus (SPI, I2C, MDIO) can already do.

Ethernet is faster (especially in bulk transactions) but is also more
unreliable, since the user may decide to bring the DSA master down (or
not bring it up), therefore severing the link between the host and the
attached switch.

Drivers needing Ethernet-based register access already should have
fallback logic to the slow bus if the Ethernet method fails, but that
fallback may be based on a timeout, and the I/O to the switch may slow
down to a halt if the master is down, because every Ethernet packet will
have to time out. The driver also doesn't have the option to turn off
Ethernet-based I/O momentarily, because it wouldn't know when to turn it
back on.

Which is where this change comes in. By tracking NETDEV_CHANGE,
NETDEV_UP and NETDEV_GOING_DOWN events on the DSA master, we should know
the exact interval of time during which this interface is reliably
available for traffic. Provide this information to switches so they can
use it as they wish.

An helper is added dsa_port_master_is_operational() to check if a master
port is operational.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-02-02 14:43:59 +00:00
..
9p net/p9: load default transports 2022-01-10 10:00:09 +09:00
bluetooth Bluetooth: hci_event: Ignore multiple conn complete events 2022-01-24 18:38:14 -08:00
caif net: remove the caif_hsi driver 2021-07-01 13:19:48 -07:00
iucv net/af_iucv: Use struct_group() to zero struct iucv_sock region 2021-11-19 11:52:25 +00:00
netfilter net/netfilter: Add unstable CT lookup helpers for XDP and TC-BPF 2022-01-18 14:26:42 -08:00
netns txhash: Make rethinking txhash behavior configurable via sysctl 2022-01-31 15:05:24 +00:00
nfc NFC: add NCI_UNREG flag to eliminate the race 2021-11-17 20:17:05 -08:00
phonet
sctp Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2022-01-05 14:36:10 -08:00
tc_act flow_offload: add index to flow_action_entry structure 2021-12-19 14:08:47 +00:00
6lowpan.h
act_api.h flow_offload: validate flags of filter and actions 2021-12-19 14:08:48 +00:00
addrconf.h Revert "ipv6: Honor all IPv6 PIO Valid Lifetime values" 2022-01-27 13:35:14 +00:00
af_ieee802154.h
af_rxrpc.h afs: Don't truncate iter during data fetch 2021-04-23 10:17:26 +01:00
af_unix.h af_unix: Replace the big lock with small locks. 2021-11-26 18:01:58 -08:00
af_vsock.h af_vsock: rest of SEQPACKET support 2021-06-11 13:32:46 -07:00
ah.h
amt.h amt: add mld report message handler 2021-11-01 13:36:09 +00:00
arp.h neigh: introduce neigh_confirm() helper function 2021-11-23 11:51:37 +00:00
atmclip.h
ax25.h net: ax25: remove route refcount 2022-01-27 13:53:27 +00:00
ax88796.h ax88796: export ax_NS8390_init() hook 2021-08-03 13:05:25 +01:00
bareudp.h bareudp: Move definition of struct bareudp_conf to bareudp.c 2021-12-13 12:34:09 +00:00
bond_3ad.h bonding: add new option lacp_active 2021-08-03 11:50:22 +01:00
bond_alb.h bonding: make tx_rebalance_counter an atomic 2021-12-03 14:16:48 +00:00
bond_options.h Bonding: add arp_missed_max option 2021-11-30 12:15:58 +00:00
bonding.h net: remove bond_slave_has_mac_rcu() 2022-01-27 13:53:26 +00:00
bpf_sk_storage.h bpf: struct sock is declared twice in bpf_sk_storage header 2021-03-26 17:43:55 +01:00
busy_poll.h tcp: fix another uninit-value (sk_rx_queue_mapping) 2021-12-03 14:15:49 +00:00
calipso.h
cfg80211-wext.h
cfg80211.h nl80211: Add support to set AP settings flags with single attribute 2021-12-20 10:41:26 +01:00
cfg802154.h
checksum.h net: fix recent csum changes 2021-12-06 16:26:46 -08:00
cipso_ipv4.h
cls_cgroup.h
codel.h codel: remove unnecessary pkt_sched.h include 2021-12-22 15:03:51 -08:00
codel_impl.h codel: remove unnecessary sock.h include 2021-12-22 15:03:47 -08:00
codel_qdisc.h codel: remove unnecessary pkt_sched.h include 2021-12-22 15:03:51 -08:00
compat.h net/ipv4/ipv6: Replace one-element arraya with flexible-array members 2021-08-05 11:46:42 +01:00
datalink.h llc/snap: constify dev_addr passing 2021-10-13 09:40:46 -07:00
dcbevent.h
dcbnl.h
devlink.h devlink: Add new "event_eq_size" generic device param 2021-12-21 19:08:54 -08:00
dn.h decnet: constify dev_addr passing 2021-10-13 09:40:46 -07:00
dn_dev.h
dn_fib.h net: convert fib_treeref from int to refcount_t 2021-07-30 15:33:24 +02:00
dn_neigh.h
dn_nsp.h
dn_route.h
dsa.h net: dsa: provide switch operations for tracking the master state 2022-02-02 14:43:59 +00:00
dsfield.h
dst.h net: dst: add net device refcount tracking to dst_entry 2021-12-06 16:05:10 -08:00
dst_cache.h wireguard: device: reset peer src endpoint when netns exits 2021-11-29 19:50:45 -08:00
dst_metadata.h net: validate lwtstate->data before returning from skb_tunnel_info() 2021-07-09 13:55:53 -07:00
dst_ops.h
erspan.h
esp.h
espintcp.h
ethoc.h
failover.h net: failover: add net device refcount tracker 2021-12-06 16:06:02 -08:00
fib_notifier.h
fib_rules.h fib: expand fib_rule_policy 2021-12-16 07:18:35 -08:00
firewire.h
flow.h flow: fix object-size-mismatch warning in flowi{4,6}_to_flowi_common() 2021-09-02 11:44:19 +01:00
flow_dissector.h cls_flower: Fix inability to match GRE/IPIP packets 2021-10-29 14:03:22 +01:00
flow_offload.h flow_offload: allow user to offload tc action to net device 2021-12-19 14:08:48 +00:00
fou.h
fq.h
fq_impl.h
garp.h
gen_stats.h net: sched: Remove Qdisc::running sequence counter 2021-10-18 12:54:41 +01:00
genetlink.h mptcp: avoid lock_fast usage in accept path 2021-02-12 16:31:46 -08:00
geneve.h
gre.h ip_gre: add csum offload support for gre header 2021-01-29 20:39:14 -08:00
gro.h net: fix recent csum changes 2021-12-06 16:26:46 -08:00
gro_cells.h
gtp.h
gue.h
hwbm.h
icmp.h ipv6: ICMPV6: add response to ICMPV6 RFC 8335 PROBE messages 2021-06-28 14:29:45 -07:00
ieee80211_radiotap.h mac80211: Use flex-array for radiotap header bitmap 2021-08-13 09:58:25 +02:00
ieee802154_netdev.h
if_inet6.h ipv6: add net device refcount tracker to struct inet6_dev 2021-12-06 16:05:11 -08:00
ife.h
ila.h
inet6_connection_sock.h
inet6_hashtables.h
inet_common.h bpf: Allow rewriting to ports under ip_unprivileged_port_start 2021-01-27 18:18:15 -08:00
inet_connection_sock.h dccp/tcp: Remove an unused argument in inet_csk_listen_start(). 2021-11-23 20:16:18 -08:00
inet_ecn.h net: add skb_get_dsfield() helper 2021-10-15 11:33:08 +01:00
inet_frag.h inet: frags: annotate races around fqdir->dead and fqdir->high_thresh 2022-01-13 13:06:05 +00:00
inet_hashtables.h tcp: seq_file: Replace listening_hash with lhash2 2021-07-23 16:44:57 -07:00
inet_sock.h ipv4/raw: support binding to nonlocal addresses 2021-11-17 20:21:52 -08:00
inet_timewait_sock.h tcp/dccp: get rid of inet_twsk_purge() 2022-01-25 11:25:21 +00:00
inetpeer.h
ioam6.h ipv6: ioam: Distinguish input and output for hop-limit 2021-10-04 12:53:35 +01:00
ip.h ipv4: Make ip_idents_reserve static 2022-01-31 11:33:10 +00:00
ip6_checksum.h net: move gro definitions to include/net/gro.h 2021-11-16 13:16:54 +00:00
ip6_fib.h ipv6: annotate accesses to fn->fn_sernum 2022-01-20 20:18:37 -08:00
ip6_route.h ipv6: ip6_skb_dst_mtu() cleanups 2021-11-19 20:09:55 -08:00
ip6_tunnel.h ipv6: add net device refcount tracker to struct ip6_tnl 2021-12-06 16:05:11 -08:00
ip_fib.h inet: add net device refcount tracker to struct fib_nh_common 2021-12-07 20:44:59 -08:00
ip_tunnels.h sit: add net device refcount tracking to ip_tunnel 2021-12-06 16:05:11 -08:00
ip_vs.h ipvs: add sysctl_run_estimation to support disable estimation 2021-10-07 19:52:58 +02:00
ipcomp.h
ipconfig.h
ipv6.h ipv6: partially inline ipv6_fixup_options 2022-01-27 19:46:11 -08:00
ipv6_frag.h inet: frags: annotate races around fqdir->dead and fqdir->high_thresh 2022-01-13 13:06:05 +00:00
ipv6_stubs.h net: ipv6: add fib6_nh_release_dsts stub 2021-11-22 15:44:49 +00:00
iw_handler.h
kcm.h
l3mdev.h
lag.h
lapb.h net: lapb: Make "lapb_t1timer_running" able to detect an already running timer 2021-03-23 14:14:50 -07:00
lib80211.h
llc.h llc: fix out-of-bound array index in llc_sk_dev_hash() 2021-11-07 19:25:29 +00:00
llc_c_ac.h
llc_c_ev.h
llc_c_st.h
llc_conn.h llc: add net device refcount tracker 2021-12-07 20:44:59 -08:00
llc_if.h llc/snap: constify dev_addr passing 2021-10-13 09:40:46 -07:00
llc_pdu.h net: llc: fix skb_over_panic 2021-07-27 13:05:56 +01:00
llc_s_ac.h
llc_s_ev.h
llc_s_st.h
llc_sap.h
lwtunnel.h netfilter: add netfilter hooks to SRv6 data plane 2021-08-30 01:51:36 +02:00
mac80211.h mac80211: Add stations iterator where the iterator function may sleep 2022-01-04 15:47:15 +01:00
mac802154.h
macsec.h net: macsec: fix the length used to copy the key for offloading 2021-06-24 12:41:12 -07:00
mctp.h mctp: Pass flow data & flow release events to drivers 2021-10-29 13:23:51 +01:00
mctpdevice.h mctp: Pass flow data & flow release events to drivers 2021-10-29 13:23:51 +01:00
mip6.h
mld.h mld: add new workqueues for process mld events 2021-03-26 15:14:56 -07:00
mpls.h
mpls_iptunnel.h
mptcp.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-10-28 10:43:58 -07:00
mrp.h
ncsi.h
ndisc.h neigh: introduce neigh_confirm() helper function 2021-11-23 11:51:37 +00:00
neighbour.h net: add net device refcount tracker to struct neigh_parms 2021-12-06 16:05:11 -08:00
net_failover.h
net_namespace.h net: add networking namespace refcount tracker 2021-12-10 06:38:26 -08:00
net_ratelimit.h
net_trackers.h net: add networking namespace refcount tracker 2021-12-10 06:38:26 -08:00
netevent.h
netlabel.h
netlink.h net: netlink: add the case when nlh is NULL 2021-07-27 11:43:50 +01:00
netprio_cgroup.h
netrom.h
nexthop.h net: ipv4: Fix rtnexthop len when RTA_FLOW is present 2021-09-24 14:07:10 +01:00
nl802154.h net: ieee802154: handle iftypes as u32 2021-11-16 18:02:46 +01:00
nsh.h
p8022.h
page_pool.h page_pool: Store the XDP mem id 2022-01-05 19:46:32 -08:00
pie.h
ping.h
pkt_cls.h net: sched: do not allocate a tracker in tcf_exts_init() 2022-01-11 20:40:16 -08:00
pkt_sched.h net: sched: remove psched_tdiff_bounded() 2022-01-27 13:53:27 +00:00
pptp.h
protocol.h net: Remove the member netns_ok 2021-05-17 15:29:35 -07:00
psample.h psample: Add a fwd declaration for skbuff 2021-08-09 15:34:21 -07:00
psnap.h
raw.h
rawv6.h
red.h sch_red: fix off-by-one checks in red_check_params() 2021-03-25 17:40:43 -07:00
regulatory.h
request_sock.h
rose.h rose: constify dev_addr passing 2021-10-13 09:40:45 -07:00
route.h ipv4: remove sparse error in ip_neigh_gw4() 2022-01-27 08:38:33 -08:00
rpl.h
rsi_91x.h
rtnetlink.h net: add extack arg for link ops 2021-08-04 10:01:26 +01:00
rtnh.h
sch_generic.h net: sched: remove qdisc_qlen_cpu() 2022-01-27 13:53:27 +00:00
scm.h
secure_seq.h
seg6.h udp6: Use Segment Routing Header for dest address if present 2022-01-04 12:17:35 +00:00
seg6_hmac.h
seg6_local.h
selftests.h net: selftest: fix build issue if INET is disabled 2021-04-28 14:06:45 -07:00
slhc_vj.h
smc.h
snmp.h
sock.h txhash: Add socket option to control TX hash rethink behavior 2022-01-31 15:05:25 +00:00
sock_reuseport.h tcp: Add reuseport_migrate_sock() to select a new listener. 2021-06-15 18:01:05 +02:00
Space.h wan: remove sbni/granch driver 2021-08-03 13:05:26 +01:00
stp.h
strparser.h bpf, sockmap: sk_skb data_end access incorrect when src_reg = dst_reg 2021-11-09 01:05:34 +01:00
switchdev.h net: switchdev: merge switchdev_handle_fdb_{add,del}_to_device 2021-10-27 14:54:02 +01:00
tcp.h tcp: Add a stub for sk_defer_free_flush() 2022-01-20 20:17:32 -08:00
tcp_states.h
timewait_sock.h
tipc.h
tls.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-10-28 10:43:58 -07:00
tls_toe.h
transp_v6.h
tso.h
tun_proto.h
udp.h net: move gro definitions to include/net/gro.h 2021-11-16 13:16:54 +00:00
udp_tunnel.h udp: call udp_encap_enable for v6 sockets when enabling encap 2021-02-04 18:37:14 -08:00
udplite.h udplite: remove udplite_csum_outgoing() 2022-01-27 13:53:27 +00:00
vsock_addr.h
vxlan.h net: vxlan: add macro definition for number of IANA VXLAN-GPE port 2021-11-29 12:19:53 +00:00
wext.h
x25.h
x25device.h
xdp.h bpf: add frags support to the bpf_xdp_adjust_tail() API 2022-01-21 14:14:02 -08:00
xdp_priv.h xsk: Wipe out dead zero_copy_allocator declarations 2021-12-14 00:24:24 +01:00
xdp_sock.h net: Don't include filter.h from net/sock.h 2021-12-29 08:48:14 -08:00
xdp_sock_drv.h xsk: Batched buffer allocation for the pool 2021-09-28 00:18:34 +02:00
xfrm.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2022-01-09 17:00:17 -08:00
xsk_buff_pool.h xsk: Optimize for aligned case 2021-09-28 00:18:35 +02:00