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Björn Töpel c497176cb2 xsk: add Rx receive functions and poll support 
Here the actual receive functions of AF_XDP are implemented, that in a
later commit, will be called from the XDP layers.

There's one set of functions for the XDP_DRV side and another for
XDP_SKB (generic).

A new XDP API, xdp_return_buff, is also introduced.

Adding xdp_return_buff, which is analogous to xdp_return_frame, but
acts upon an struct xdp_buff. The API will be used by AF_XDP in future
commits.

Support for the poll syscall is also implemented.

v2: xskq_validate_id did not update cons_tail.
    The entries variable was calculated twice in xskq_nb_avail.
    Squashed xdp_return_buff commit.

Signed-off-by: Björn Töpel <bjorn.topel@intel.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2018-05-03 15:55:24 -07:00
..
9p
9p: Implement show_options
2017-07-11 06:08:58 -04:00
bluetooth
Merge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth
2018-04-08 17:19:15 -04:00
caif
caif: reduce stack size with KASAN
2018-01-19 14:02:12 -05:00
iucv
net: annotate ->poll() instances
2017-11-27 16:20:04 -05:00
netfilter
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2018-04-01 19:49:34 -04:00
netns
ipv6: sr: Compute flowlabel for outer IPv6 header of seg6 encap mode
2018-04-25 13:02:15 -04:00
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
sctp: remove the unused sctp_assoc_is_match function
2018-04-25 14:09:23 -04:00
tc_act
net/sched: act_csum: don't use spinlock in the fast path
2018-01-23 19:51:46 -05:00
6lowpan.h
6lowpan: Fix IID format for Bluetooth
2017-04-12 22:02:36 +02:00
act_api.h
net/sched: remove tcf_idr_cleanup()
2018-03-23 21:52:19 -04:00
addrconf.h
ipv6: Count interface receive statistics on the ingress netdev
2018-04-17 13:39:51 -04:00
af_ieee802154.h
…
af_rxrpc.h
rxrpc, afs: Use debug_ids rather than pointers in traces
2018-03-27 23:03:00 +01:00
af_unix.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
af_vsock.h
VSOCK: use TCP state constants for sk_state
2017-10-05 18:44:17 -07:00
ah.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
arp.h
ipv4: Make neigh lookup keys for loopback/point-to-point devices be INADDR_ANY
2018-01-15 14:53:43 -05:00
atmclip.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
ax25.h
net: Make ax25_ptr depend on CONFIG_AX25
2018-02-14 11:55:33 -05:00
ax88796.h
net-next: ax88796: add interrupt status callback to platform data
2018-04-19 16:11:11 -04:00
bond_3ad.h
…
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
nl80211: Add control_port_over_nl80211 to mesh_setup
2018-03-29 14:01:27 +02:00
cfg802154.h
…
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
…
codel_impl.h
…
codel_qdisc.h
…
codel.h
…
compat.h
net: remove compat_sys_*() prototypes from net/compat.h
2018-04-02 20:16:17 +02:00
datalink.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
dcbevent.h
…
dcbnl.h
…
devlink.h
devlink: convert occ_get op to separate registration
2018-04-08 12:45:57 -04:00
dn_dev.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
dn_fib.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
dn_neigh.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
dn_nsp.h
net/decnet: Convert timers to use timer_setup()
2017-10-18 12:39:36 +01:00
dn_route.h
decnet: Move dn_next into decnet route structure.
2017-11-30 09:54:25 -05:00
dn.h
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2017-11-04 09:26:51 +09:00
dsa.h
dsa: Pass the port to get_sset_count()
2018-03-04 13:34:18 -05:00
dsfield.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
dst_cache.h
net: core: dst_cache_set_ip6: Rename 'addr' parameter to 'saddr' for consistency
2018-03-05 12:52:45 -05:00
dst_metadata.h
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2017-11-04 09:26:51 +09:00
dst_ops.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
dst.h
net: core: dst: Add kernel-doc for 'net' parameter
2018-03-05 12:52:45 -05:00
erspan.h
net: erspan: fix metadata extraction
2018-02-06 11:32:48 -05:00
esp.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
ethoc.h
inet: whitespace cleanup
2018-02-28 11:43:28 -05:00
fib_notifier.h
net: Add extack to fib_notifier_info
2017-11-01 11:50:43 +09:00
fib_rules.h
net: fib_rules: add extack support
2018-04-23 10:21:24 -04:00
firewire.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
flow_dissector.h
tipc: improve link resiliency when rps is activated
2017-11-11 15:36:05 +09:00
flow.h
net: Remove unused get_hash_from_flow functions
2018-03-04 13:04:23 -05:00
fou.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
fq_impl.h
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2017-10-30 21:09:24 +09:00
fq.h
fq: support filtering a given tin
2017-10-11 09:49:34 +02:00
garp.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
gen_stats.h
net: sched: add support for TCQ_F_NOLOCK subqueues to sch_mq
2017-12-08 13:32:26 -05:00
genetlink.h
genetlink: fix genlmsg_nlhdr()
2017-11-16 10:49:00 +09:00
geneve.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
gre.h
net: GRE: Add is_gretap_dev, is_ip6gretap_dev
2018-02-27 14:46:26 -05:00
gro_cells.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
gtp.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
gue.h
fou: fix some member types in guehdr
2017-12-11 14:10:06 -05:00
hwbm.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
icmp.h
…
ieee80211_radiotap.h
mac80211: support reporting A-MPDU EOF bit value/known
2018-02-22 21:13:02 +01:00
ieee802154_netdev.h
…
if_inet6.h
net/ipv6: Remove aca_idev
2018-04-19 15:40:13 -04:00
ife.h
net: sched: ife: handle malformed tlv length
2018-04-22 21:12:00 -04:00
ila.h
…
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: Introduce __inet_bind() and __inet6_bind
2018-03-31 02:15:43 +02:00
inet_connection_sock.h
inet: whitespace cleanup
2018-02-28 11:43:28 -05:00
inet_ecn.h
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2017-11-04 09:26:51 +09:00
inet_frag.h
inet: frags: reorganize struct netns_frags
2018-03-31 23:25:39 -04:00
inet_hashtables.h
inet: Add a 2nd listener hashtable (port+addr)
2017-12-03 10:18:28 -05:00
inet_sock.h
udp: generate gso with UDP_SEGMENT
2018-04-26 15:08:04 -04:00
inet_timewait_sock.h
soreuseport: initialise timewait reuseport field
2018-04-07 22:32:32 -04:00
inetpeer.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
ip6_checksum.h
…
ip6_fib.h
net/ipv6: Make from in rt6_info rcu protected
2018-04-21 16:06:14 -04:00
ip6_route.h
net/ipv6: Remove compare of fib6_idev from rt6_duplicate_nexthop
2018-04-19 15:40:13 -04:00
ip6_tunnel.h
ip6_gre: add erspan v2 support
2017-12-15 12:34:00 -05:00
ip_fib.h
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2018-03-23 11:31:58 -04:00
ip_tunnels.h
vxlan: add ttl inherit support
2018-04-17 13:53:13 -04:00
ip_vs.h
netfilter: ipvs: Remove useless ipvsh param of frag_safe_skb_hp
2018-01-08 18:01:02 +01:00
ip.h
udp: generate gso with UDP_SEGMENT
2018-04-26 15:08:04 -04:00
ipcomp.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
ipconfig.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
ipv6.h
udp: generate gso with UDP_SEGMENT
2018-04-26 15:08:04 -04:00
ipx.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
iw_handler.h
net: Spelling s/stucture/structure/
2018-03-27 09:51:23 +02:00
kcm.h
…
l3mdev.h
…
lapb.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
lib80211.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
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: delete timers synchronously in llc_sk_free()
2018-04-22 14:55:03 -04:00
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: Move ipv4 set_lwt_redirect helper to lwtunnel
2018-02-14 14:43:32 -05:00
mac80211.h
We have a fair number of patches, but many of them are from the
2018-03-29 16:23:26 -04:00
mac802154.h
…
mip6.h
…
mld.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
mpls_iptunnel.h
net: mpls: Increase max number of labels for lwt encap
2017-04-01 20:21:44 -07:00
mpls.h
…
mrp.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
ncsi.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
ndisc.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
neighbour.h
neighbour: support for NTF_EXT_LEARNED flag
2018-04-25 13:19:59 -04:00
net_namespace.h
net: Introduce net_rwsem to protect net_namespace_list
2018-03-29 13:47:53 -04:00
net_ratelimit.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
netevent.h
net/ipv6: Add support for path selection using hash of 5-tuple
2018-03-04 13:04:23 -05:00
netlabel.h
net: convert netlbl_lsm_cache.refcount from atomic_t to refcount_t
2017-07-01 07:39:09 -07:00
netlink.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
netprio_cgroup.h
…
netrom.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
nexthop.h
net: fix rtnh_ok()
2018-04-07 22:32:31 -04:00
nl802154.h
…
nsh.h
openvswitch: enable NSH support
2017-11-08 16:12:33 +09:00
p8022.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
page_pool.h
xdp: allow page_pool as an allocator type in xdp_return_frame
2018-04-17 10:50:29 -04:00
ping.h
…
pkt_cls.h
net: sch: prio: Add offload ability for grafting a child
2018-02-28 12:06:01 -05:00
pkt_sched.h
net: remove prototype of qdisc_lookup_class()
2018-01-16 14:56:54 -05:00
pptp.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
protocol.h
IPv4: early demux can return an error code
2017-10-01 03:55:47 +01:00
psample.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
psnap.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
raw.h
net: ipv4: add second dif to raw socket lookups
2017-08-07 11:39:21 -07:00
rawv6.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
red.h
net_sched: red: Avoid illegal values
2017-12-05 14:37:13 -05:00
regulatory.h
cfg80211: read wmm rules from regulatory database
2018-03-29 11:11:40 +02:00
request_sock.h
tcp: socket option to set TCP fast open key
2017-10-20 13:21:36 +01:00
rose.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
route.h
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2018-03-23 11:31:58 -04:00
rsi_91x.h
Bluetooth: btrsi: add new rsi bluetooth driver
2018-03-13 18:37:02 +02:00
rtnetlink.h
rtnetlink: remove __rtnl_register
2017-12-04 11:32:53 -05:00
sch_generic.h
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2018-04-01 19:49:34 -04:00
scm.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
secure_seq.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
seg6_hmac.h
…
seg6.h
ipv6: sr: add support for ip4ip6 encapsulation
2017-08-25 17:10:23 -07:00
slhc_vj.h
slip: Check if rstate is initialized before uncompressing
2018-04-11 10:33:46 -04:00
smc.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
snmp.h
…
sock_reuseport.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
sock.h
slab: make usercopy region 32-bit
2018-04-05 21:36:24 -07:00
Space.h
net/mac89x0: Convert to platform_driver
2018-03-01 21:21:36 -05:00
stp.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
strparser.h
strparser: Use delayed work instead of timer for msg timeout
2017-10-25 10:37:11 +09:00
switchdev.h
net: bridge: Add/del switchdev object on host join/leave
2017-11-10 13:41:40 +09:00
tcp_states.h
tcp: remove the hardcode in the definition of TCPF Macro
2018-02-21 15:06:05 -05:00
tcp.h
tcp: implement mmap() for zero copy receive
2018-04-16 18:26:37 -04:00
timewait_sock.h
…
tipc.h
tipc: improve link resiliency when rps is activated
2017-11-11 15:36:05 +09:00
tls.h
tls: support for Inline tls record
2018-03-31 23:37:32 -04:00
transp_v6.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
tso.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
tun_proto.h
vxlan: factor out VXLAN-GPE next protocol
2017-08-29 15:16:52 -07:00
udp_tunnel.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
udp.h
udp: add gso segment cmsg
2018-04-26 15:08:51 -04:00
udplite.h
udplite: fix partial checksum initialization
2018-02-16 15:57:42 -05:00
vsock_addr.h
…
vxlan.h
vxlan: add ttl inherit support
2018-04-17 13:53:13 -04:00
wext.h
lift handling of SIOCIW... out of dev_ioctl()
2018-01-24 19:13:45 -05:00
wimax.h
…
x25.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
x25device.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
xdp_sock.h
xsk: add Rx receive functions and poll support
2018-05-03 15:55:24 -07:00
xdp.h
xsk: add Rx receive functions and poll support
2018-05-03 15:55:24 -07:00
xfrm.h
xfrm: Register xfrm_dev_notifier in appropriate place
2018-03-30 10:59:23 -04:00