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41b2bd208e
linux/net
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Aaron Conole e069ba07e6 net: openvswitch: add support for l4 symmetric hashing 
Since its introduction, the ovs module execute_hash action allowed
hash algorithms other than the skb->l4_hash to be used.  However,
additional hash algorithms were not implemented.  This means flows
requiring different hash distributions weren't able to use the
kernel datapath.

Now, introduce support for symmetric hashing algorithm as an
alternative hash supported by the ovs module using the flow
dissector.

Output of flow using l4_sym hash:

    recirc_id(0),in_port(3),eth(),eth_type(0x0800),
    ipv4(dst=64.0.0.0/192.0.0.0,proto=6,frag=no), packets:30473425,
    bytes:45902883702, used:0.000s, flags:SP.,
    actions:hash(sym_l4(0)),recirc(0xd)

Some performance testing with no GRO/GSO, two veths, single flow:

    hash(l4(0)):      4.35 GBits/s
    hash(l4_sym(0)):  4.24 GBits/s

Signed-off-by: Aaron Conole <aconole@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-06-12 09:46:30 +01:00
..
6lowpan 6lowpan: Remove redundant initialisation. 2023-03-29 08:22:52 +01:00
9p Including fixes from netfilter. 2023-05-05 19:12:01 -07:00
802
8021q vlan: fix a potential uninit-value in vlan_dev_hard_start_xmit() 2023-05-17 12:55:39 +01:00
appletalk
atm atm: hide unused procfs functions 2023-05-17 21:27:30 -07:00
ax25
batman-adv batman-adv: Broken sync while rescheduling delayed work 2023-05-26 23:14:49 +02:00
bluetooth Bluetooth: L2CAP: Add missing checks for invalid DCID 2023-06-05 17:24:14 -07:00
bpf bpf: Move kernel test kfuncs to bpf_testmod 2023-05-16 22:09:24 -07:00
bpfilter
bridge skbuff: bridge: Add layer 2 miss indication 2023-05-30 23:37:00 -07:00
caif net: caif: Fix use-after-free in cfusbl_device_notify() 2023-03-02 22:22:07 -08:00
can can: j1939: avoid possible use-after-free when j1939_can_rx_register fails 2023-06-05 08:26:40 +02:00
ceph Networking changes for 6.3. 2023-02-21 18:24:12 -08:00
core net: move gso declarations and functions to their own files 2023-06-10 00:11:41 -07:00
dcb
dccp netfilter: keep conntrack reference until IPsecv6 policy checks are done 2023-03-22 21:50:23 +01:00
devlink devlink: bring port new reply back 2023-06-01 21:37:32 -07:00
dns_resolver
dsa net: dsa: add support for mac_prepare() and mac_finish() calls 2023-05-26 10:39:40 +01:00
ethernet
ethtool ethtool: ioctl: improve error checking for set_wol 2023-06-08 19:24:54 -07:00
handshake net: ynl: prefix uAPI header include with uapi/ 2023-05-26 10:30:14 +01:00
hsr hsr: ratelimit only when errors are printed 2023-03-16 21:11:03 -07:00
ieee802154 Revert "net: Remove low_thresh in ip defrag" 2023-05-16 20:46:30 -07:00
ife
ipv4 net: move gso declarations and functions to their own files 2023-06-10 00:11:41 -07:00
ipv6 net: move gso declarations and functions to their own files 2023-06-10 00:11:41 -07:00
iucv net/iucv: Fix size of interrupt data 2023-03-16 17:34:40 -07:00
kcm kcm: Use splice_eof() to flush 2023-06-08 19:40:31 -07:00
key af_key: Reject optional tunnel/BEET mode templates in outbound policies 2023-05-10 07:04:51 +02:00
l2tp l2tp: generate correct module alias strings 2023-03-31 09:25:12 +01:00
l3mdev
lapb
llc net: deal with most data-races in sk_wait_event() 2023-05-10 10:03:32 +01:00
mac80211 net: move gso declarations and functions to their own files 2023-06-10 00:11:41 -07:00
mac802154 mac802154: Rename kfree_rcu() to kvfree_rcu_mightsleep() 2023-04-05 13:48:04 +00:00
mctp mctp: remove MODULE_LICENSE in non-modules 2023-03-09 23:06:21 -08:00
mpls net: move gso declarations and functions to their own files 2023-06-10 00:11:41 -07:00
mptcp mptcp: unify pm set_flags interfaces 2023-06-10 00:05:59 -07:00
ncsi net/ncsi: change from ndo_set_mac_address to dev_set_mac_address 2023-06-09 10:32:51 +01:00
netfilter net: move gso declarations and functions to their own files 2023-06-10 00:11:41 -07:00
netlabel
netlink net/netlink: fix NETLINK_LIST_MEMBERSHIPS length report 2023-05-31 00:02:24 -07:00
netrom netrom: fix info-leak in nr_write_internal() 2023-05-25 21:02:29 -07:00
nfc nfc: llcp: fix possible use of uninitialized variable in nfc_llcp_send_connect() 2023-05-15 13:03:34 +01:00
nsh net: move gso declarations and functions to their own files 2023-06-10 00:11:41 -07:00
openvswitch net: openvswitch: add support for l4 symmetric hashing 2023-06-12 09:46:30 +01:00
packet af_packet: do not use READ_ONCE() in packet_bind() 2023-05-29 22:03:48 -07:00
phonet
psample
qrtr net: qrtr: Fix an uninit variable access bug in qrtr_tx_resume() 2023-04-13 09:35:30 +02:00
rds rds: rds_rm_zerocopy_callback() correct order for list_add_tail() 2023-02-13 09:33:39 +00:00
rfkill net: rfkill-gpio: Add explicit include for of.h 2023-04-06 20:36:27 +02:00
rose net/rose: Fix to not accept on connected socket 2023-01-28 00:19:57 -08:00
rxrpc rxrpc: Truncate UTS_RELEASE for rxrpc version 2023-05-30 10:01:06 +02:00
sched net/sched: taprio: report class offload stats per TXQ, not per TC 2023-06-12 09:43:30 +01:00
sctp net: move gso declarations and functions to their own files 2023-06-10 00:11:41 -07:00
smc net/smc: Avoid to access invalid RMBs' MRs in SMCRv1 ADD LINK CONT 2023-06-03 20:51:04 +01:00
strparser
sunrpc nfsd-6.4 fixes: 2023-06-02 13:38:55 -04:00
switchdev
tipc tipc: replace open-code bearer rcu_dereference access in bearer.c 2023-06-06 21:46:21 -07:00
tls tls/device: Convert tls_device_sendpage() to use MSG_SPLICE_PAGES 2023-06-08 19:40:31 -07:00
unix Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2023-05-25 19:57:39 -07:00
vmw_vsock bpf, sockmap: Pass skb ownership through read_skb 2023-05-23 16:09:47 +02:00
wireless wifi: cfg80211: move scan done work to wiphy work 2023-06-07 19:53:37 +02:00
x25
xdp xsk: Use pool->dma_pages to check for DMA 2023-04-27 22:24:51 +02:00
xfrm net: move gso declarations and functions to their own files 2023-06-10 00:11:41 -07:00
compat.c net/compat: Update msg_control_is_user when setting a kernel pointer 2023-04-14 11:09:27 +01:00
devres.c
Kconfig net/core: Enable socket busy polling on -RT 2023-05-26 08:51:26 +01:00
Kconfig.debug
Makefile net/handshake: Create a NETLINK service for handling handshake requests 2023-04-19 18:48:48 -07:00
socket.c splice, net: Add a splice_eof op to file-ops and socket-ops 2023-06-08 19:40:30 -07:00
sysctl_net.c