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David S. Miller 87e3de1e4e Merge branch '1GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue 
Jeff Kirsher says:

====================
1GbE Intel Wired LAN Driver Updates 2017-10-27

This patchset is a proposal of how the Traffic Control subsystem can
be used to offload the configuration of the Credit Based Shaper
(defined in the IEEE 802.1Q-2014 Section 8.6.8.2) into supported
network devices.

As part of this work, we've assessed previous public discussions
related to TSN enabling: patches from Henrik Austad (Cisco), the
presentation from Eric Mann at Linux Plumbers 2012, patches from
Gangfeng Huang (National Instruments) and the current state of the
OpenAVNU project (https://github.com/AVnu/OpenAvnu/).

Overview
========

Time-sensitive Networking (TSN) is a set of standards that aim to
address resources availability for providing bandwidth reservation and
bounded latency on Ethernet based LANs. The proposal described here
aims to cover mainly what is needed to enable the following standards:
802.1Qat and 802.1Qav.

The initial target of this work is the Intel i210 NIC, but other
controllers' datasheet were also taken into account, like the Renesas
RZ/A1H RZ/A1M group and the Synopsis DesignWare Ethernet QoS
controller.

Proposal
========

Feature-wise, what is covered here is the configuration interfaces for
HW implementations of the Credit-Based shaper (CBS, 802.1Qav). CBS is
a per-queue shaper. Given that this feature is related to traffic
shaping, and that the traffic control subsystem already provides a
queueing discipline that offloads config into the device driver (i.e.
mqprio), designing a new qdisc for the specific purpose of offloading
the config for the CBS shaper seemed like a good fit.

For steering traffic into the correct queues, we use the socket option
SO_PRIORITY and then a mechanism to map priority to traffic classes /
Tx queues. The qdisc mqprio is currently used in our tests.

As for the CBS config interface, this patchset is proposing a new
qdisc called 'cbs'. Its 'tc' cmd line is:

$ tc qdisc add dev IFACE parent ID cbs locredit N hicredit M sendslope S \
     idleslope I

   Note that the parameters for this qdisc are the ones defined by the
   802.1Q-2014 spec, so no hardware specific functionality is exposed here.

Per-stream shaping, as defined by IEEE 802.1Q-2014 Section 34.6.1, is
not yet covered by this proposal.

v2: Merged patch 6 of the original series into patch 4 based on feedback
    from David Miller.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-10-29 11:20:28 +09:00
..
9p 9p: Implement show_options 2017-07-11 06:08:58 -04:00
bluetooth Bluetooth: make baswap src const 2017-09-01 22:49:47 +02:00
caif
iucv
netfilter netfilter: nat: Revert "netfilter: nat: convert nat bysrc hash to rhashtable" 2017-09-08 18:55:50 +02:00
netns tcp: Namespace-ify sysctl_tcp_pacing_ca_ratio 2017-10-28 19:24:39 +09:00
nfc NFC: Add nfc_dbg() macro 2017-04-05 10:15:20 +02:00
phonet net: phonet: mark phonet_protocol as const 2017-10-07 23:15:08 +01:00
sctp net: sctp: Convert timers to use timer_setup() 2017-10-25 12:02:09 +09:00
tc_act sched: act: ife: update parameters via rcu handling 2017-10-12 22:23:03 -07:00
6lowpan.h 6lowpan: Fix IID format for Bluetooth 2017-04-12 22:02:36 +02:00
act_api.h net: sched: introduce per-egress action device callbacks 2017-10-11 20:15:43 -07:00
addrconf.h ipv6: addrconf: add per netns perturbation in inet6_addr_hash() 2017-10-24 17:54:19 +09:00
af_ieee802154.h
af_rxrpc.h rxrpc: Provide functions for allowing cleaner handling of signals 2017-10-18 11:42:48 +01:00
af_unix.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-07-21 03:38:43 +01:00
af_vsock.h VSOCK: use TCP state constants for sk_state 2017-10-05 18:44:17 -07:00
ah.h
arp.h net: convert neighbour.refcnt from atomic_t to refcount_t 2017-07-01 07:39:07 -07:00
atmclip.h
ax25.h net, ax25: convert ax25_cb.refcount from atomic_t to refcount_t 2017-07-04 22:35:19 +01:00
ax88796.h
bond_3ad.h bonding: 3ad: apply ad_actor settings changes immediately 2016-02-09 04:45:49 -05:00
bond_alb.h
bond_options.h bonding: Prevent duplicate userspace notification 2017-05-27 18:51:41 -04:00
bonding.h bonding: remove rtmsg_ifinfo called after bond_lower_state_changed 2017-10-25 10:54:39 +09:00
busy_poll.h net: fix compilation when busy poll is not enabled 2017-08-11 14:59:24 -07:00
calipso.h net, calipso: convert calipso_doi.refcount from atomic_t to refcount_t 2017-07-04 22:35:16 +01:00
cfg80211-wext.h
cfg80211.h cfg80211/nl80211: add a port authorized event 2017-10-02 14:08:27 +02:00
cfg802154.h ieee802154: add netns support 2016-07-08 12:20:57 +02:00
checksum.h csum: eliminate sparse warning in remcsum_unadjust() 2017-01-20 12:12:13 -05:00
cipso_ipv4.h net, ipv4: convert cipso_v4_doi.refcount from atomic_t to refcount_t 2017-07-04 01:29:04 -07:00
cls_cgroup.h cls_cgroup: get sk_classid only from full sockets 2016-04-19 20:09:25 -04:00
codel_impl.h codel: split into multiple files 2016-04-25 16:44:27 -04:00
codel_qdisc.h net_sched: fq_codel: cache skb->truesize into skb->cb 2016-06-25 12:19:35 -04:00
codel.h codel: split into multiple files 2016-04-25 16:44:27 -04:00
compat.h packet: compat support for sock_fprog 2016-06-09 23:41:03 -07:00
datalink.h
dcbevent.h
dcbnl.h
devlink.h devlink: Add IPv6 header for dpipe 2017-08-31 14:42:19 -07:00
dn_dev.h
dn_fib.h net, decnet: convert dn_fib_info.fib_clntref from atomic_t to refcount_t 2017-07-04 22:35:15 +01:00
dn_neigh.h
dn_nsp.h net/decnet: Convert timers to use timer_setup() 2017-10-18 12:39:36 +01:00
dn_route.h
dn.h net/decnet: Convert timers to use timer_setup() 2017-10-18 12:39:36 +01:00
dsa.h net: dsa: remove port masks 2017-10-28 00:00:09 +09:00
dsfield.h
dst_cache.h net: add dst_cache support 2016-02-16 20:21:48 -05:00
dst_metadata.h bpf: don't rely on the verifier lock for metadata_dst allocation 2017-10-10 12:30:16 -07:00
dst_ops.h net: add confirm_neigh method to dst_ops 2017-02-07 13:07:46 -05:00
dst.h net: updating dst lastusage is an unlikely event. 2017-10-27 11:52:52 +09:00
erspan.h gre: introduce native tunnel support for ERSPAN 2017-08-22 14:29:30 -07:00
esp.h esp6: Reorganize esp_output 2017-04-14 10:06:42 +02:00
ethoc.h
fib_notifier.h fib: notifier: Add VIF add and delete event types 2017-09-27 11:33:27 -07:00
fib_rules.h net: fib_rules: Implement notification logic in core 2017-08-03 15:35:59 -07:00
firewire.h
flow_dissector.h flow_dissector: Cleanup control flow 2017-09-05 11:40:08 -07:00
flow.h net: Extend struct flowi6 with multipath hash 2017-08-24 18:21:17 -07:00
fou.h fou: Add encap ops for IPv6 tunnels 2016-05-20 18:03:16 -04:00
fq_impl.h fq: support filtering a given tin 2017-10-11 09:49:34 +02:00
fq.h fq: support filtering a given tin 2017-10-11 09:49:34 +02:00
garp.h
gen_stats.h net_sched: gen_estimator: complete rewrite of rate estimators 2016-12-05 15:21:59 -05:00
genetlink.h genetlink: remove ops_list from genetlink header. 2017-06-05 10:54:55 -04:00
geneve.h net: Remove deprecated tunnel specific UDP offload functions 2016-06-17 20:23:32 -07:00
gre.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-08-18 01:17:32 -04:00
gro_cells.h gro_cells: move to net/core/gro_cells.c 2017-02-08 14:38:18 -05:00
gtp.h gtp: #define #define _GTP_H_ and not #define _GTP_H 2016-07-25 17:55:43 -07:00
gue.h
hwbm.h net: add a hardware buffer management helper API 2016-03-14 12:19:46 -04:00
icmp.h net: snmp: kill STATS_BH macros 2016-04-27 22:48:25 -04:00
ieee80211_radiotap.h wireless: radiotap: rewrite the radiotap header file 2017-01-25 16:00:33 +01:00
ieee802154_netdev.h mac802154: constify ieee802154_llsec_ops structure 2016-01-04 20:40:41 +01:00
if_inet6.h net, ipv6: convert ifacaddr6.aca_refcnt from atomic_t to refcount_t 2017-07-04 01:29:04 -07:00
ife.h net: Introduce ife encapsulation module 2017-02-03 15:16:45 -05:00
ila.h ila: Add generic ILA translation facility 2015-12-15 23:25:20 -05:00
inet6_connection_sock.h inet: drop ->bind_conflict 2017-01-18 13:04:28 -05:00
inet6_hashtables.h net: ipv6: add second dif to inet6 socket lookups 2017-08-07 11:39:22 -07:00
inet_common.h net: Work around lockdep limitation in sockets that use sockets 2017-03-09 18:23:27 -08:00
inet_connection_sock.h inet/connection_sock: Convert timers to use timer_setup() 2017-10-18 12:39:55 +01:00
inet_ecn.h net-ipv6: remove unused IP6_ECN_clear() function 2017-10-01 17:55:54 -07:00
inet_frag.h inet: frags: Convert timers to use timer_setup() 2017-10-18 12:39:55 +01:00
inet_hashtables.h net: ipv4: add second dif to inet socket lookups 2017-08-07 11:39:21 -07:00
inet_sock.h tcp: TCP experimental option for SMC 2017-10-26 18:00:29 +09:00
inet_timewait_sock.h ipv4: Namespaceify tcp_tw_recycle and tcp_max_tw_buckets knob 2016-12-29 11:38:31 -05:00
inetpeer.h inetpeer: remove AVL implementation in favor of RB tree 2017-07-17 08:59:01 -07:00
ip6_checksum.h ipv6: Pass proto to csum_ipv6_magic as __u8 instead of unsigned short 2016-03-13 23:55:13 -04:00
ip6_fib.h ipv6: take care of rt6_stats 2017-10-07 21:22:58 +01:00
ip6_route.h ipv6: prepare fib6_age() for exception table 2017-10-07 21:22:57 +01:00
ip6_tunnel.h ip6_tunnel: Allow policy-based routing through tunnels 2017-04-21 13:21:30 -04:00
ip_fib.h net: ipv4: remove fib_weight 2017-09-29 06:19:32 +01:00
ip_tunnels.h ipv4: speedup ipv6 tunnels dismantle 2017-09-19 16:32:24 -07:00
ip_vs.h ipvs: remove unused function ip_vs_set_state_timeout 2017-04-28 12:00:10 +02:00
ip.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-08-21 17:06:42 -07:00
ipcomp.h
ipconfig.h
ipv6.h net/ipv6: Convert icmpv6_push_pending_frames to void 2017-10-06 09:52:31 -07:00
ipx.h net, ipx: convert ipx_route.refcnt from atomic_t to refcount_t 2017-07-04 22:35:17 +01:00
iw_handler.h wext: uninline stream addition functions 2017-01-13 09:38:42 +01:00
kcm.h kcm: Use stream parser 2016-08-17 19:36:23 -04:00
l3mdev.h net: ipv4: Do not drop to make_route if oif is l3mdev 2016-10-13 12:05:26 -04:00
lapb.h net, lapb: convert lapb_cb.refcnt from atomic_t to refcount_t 2017-07-04 22:35:16 +01:00
lib80211.h
llc_c_ac.h net: LLC: Convert timers to use timer_setup() 2017-10-25 12:06:25 +09:00
llc_c_ev.h
llc_c_st.h
llc_conn.h
llc_if.h
llc_pdu.h
llc_s_ac.h
llc_s_ev.h
llc_s_st.h
llc_sap.h
llc.h net, llc: convert llc_sap.refcnt from atomic_t to refcount_t 2017-07-04 22:35:15 +01:00
lwtunnel.h net: add extack arg to lwtunnel build state 2017-05-30 11:55:32 -04:00
mac80211.h mac80211: add documentation to ieee80211_rx_ba_offl() 2017-09-21 11:42:00 +02:00
mac802154.h ieee802154: cleanup WARN_ON for fc fetch 2016-07-08 13:23:12 +02:00
mip6.h
mld.h
mpls_iptunnel.h net: mpls: Increase max number of labels for lwt encap 2017-04-01 20:21:44 -07:00
mpls.h openvswitch: use mpls_hdr 2016-10-03 02:00:22 -04:00
mrp.h
ncsi.h net/ncsi: fix ncsi_vlan_rx_{add,kill}_vid references 2017-09-05 09:11:45 -07:00
ndisc.h net: convert neighbour.refcnt from atomic_t to refcount_t 2017-07-01 07:39:07 -07:00
neighbour.h neigh: make strucrt neigh_table::entry_size unsigned int 2017-09-25 20:36:17 -07:00
net_namespace.h net: core: Make the FIB notification chain generic 2017-08-03 15:35:59 -07:00
net_ratelimit.h
netevent.h neigh: Send a notification when DELAY_PROBE_TIME changes 2016-07-05 09:06:29 -07:00
netlabel.h net: convert netlbl_lsm_cache.refcount from atomic_t to refcount_t 2017-07-01 07:39:09 -07:00
netlink.h netlink: fix nla_put_{u8,u16,u32} for KASAN 2017-09-25 20:18:27 -07:00
netprio_cgroup.h
netrom.h net, netrom: convert nr_node.refcount from atomic_t to refcount_t 2017-07-04 22:35:17 +01:00
nexthop.h
nl802154.h ieee802154: add netns support 2016-07-08 12:20:57 +02:00
nsh.h net: add NSH header structures and helpers 2017-08-29 15:16:52 -07:00
p8022.h
ping.h net: ping: make ping_v6_sendmsg static 2016-03-23 22:09:58 -04:00
pkt_cls.h net: sched: remove unused classid field from tc_cls_common_offload 2017-10-21 03:04:08 +01:00
pkt_sched.h net/sched: Add support for HW offloading for CBS 2017-10-27 09:49:24 -07:00
pptp.h pptp: Refactor the struct and macros of PPTP codes 2016-08-15 10:55:53 -07:00
protocol.h IPv4: early demux can return an error code 2017-10-01 03:55:47 +01:00
psample.h net: Introduce psample, a new genetlink channel for packet sampling 2017-01-24 13:44:28 -05:00
psnap.h
raw.h net: ipv4: add second dif to raw socket lookups 2017-08-07 11:39:21 -07:00
rawv6.h net: ipv6: add second dif to raw socket lookups 2017-08-07 11:39:22 -07:00
red.h ktime: Get rid of the union 2016-12-25 17:21:22 +01:00
regulatory.h
request_sock.h tcp: socket option to set TCP fast open key 2017-10-20 13:21:36 +01:00
rose.h
route.h udp: perform source validation for mcast early demux 2017-10-01 03:55:47 +01:00
rtnetlink.h rtnetlink: remove __rtnl_af_unregister 2017-10-04 10:33:59 -07:00
sch_generic.h net: sched: introduce per-block callbacks 2017-10-21 03:04:06 +01:00
scm.h sched/headers: Prepare to remove <linux/cred.h> inclusion from <linux/sched.h> 2017-03-02 08:42:31 +01:00
secure_seq.h tcp: Namespaceify sysctl_tcp_timestamps 2017-06-08 10:53:29 -04:00
seg6_hmac.h ipv6: sr: add core files for SR HMAC support 2016-11-09 20:40:06 -05:00
seg6.h ipv6: sr: add support for ip4ip6 encapsulation 2017-08-25 17:10:23 -07:00
slhc_vj.h
smc.h smc: netlink interface for SMC sockets 2017-01-09 16:07:41 -05:00
snmp.h net: snmp: fix 64bit stats on 32bit arches 2016-04-28 11:49:45 -04:00
sock_reuseport.h soreuseport: fix NULL ptr dereference SO_REUSEPORT after bind 2016-01-19 14:44:23 -05:00
sock.h net/sock: Update sk rcu iterator macro. 2017-10-24 18:46:22 +09:00
Space.h
stp.h
strparser.h strparser: initialize all callbacks 2017-08-24 21:57:50 -07:00
switchdev.h net: bridge: Notify on bridge device mrouter state changes 2017-10-09 10:18:11 -07:00
tcp_states.h
tcp.h tcp: remove unnecessary include 2017-10-28 19:27:33 +09:00
timewait_sock.h
tls.h tls: kernel TLS support 2017-06-15 12:12:40 -04:00
transp_v6.h ipv6: add new struct ipcm6_cookie 2016-05-03 16:08:14 -04:00
tso.h net: define the TSO header size in net/tso.h 2017-08-23 20:42:09 -07:00
tun_proto.h vxlan: factor out VXLAN-GPE next protocol 2017-08-29 15:16:52 -07:00
udp_tunnel.h net: add infrastructure to un-offload UDP tunnel port 2017-07-24 13:52:59 -07:00
udp.h IPv4: early demux can return an error code 2017-10-01 03:55:47 +01:00
udplite.h udp: use a separate rx queue for packet reception 2017-05-16 15:41:29 -04:00
vsock_addr.h
vxlan.h vxlan: factor out VXLAN-GPE next protocol 2017-08-29 15:16:52 -07:00
wext.h dev_ioctl: copy only the smaller struct iwreq for wext 2017-06-14 13:52:44 +02:00
wimax.h
x25.h net, x25: convert x25_neigh.refcnt from atomic_t to refcount_t 2017-07-04 22:35:18 +01:00
x25device.h
xfrm.h xfrm: Add support for network devices capable of removing the ESP trailer 2017-08-31 09:04:03 +02:00