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Eric Dumazet 9a568de481 tcp: switch TCP TS option (RFC 7323) to 1ms clock 
TCP Timestamps option is defined in RFC 7323

Traditionally on linux, it has been tied to the internal
'jiffies' variable, because it had been a cheap and good enough
generator.

For TCP flows on the Internet, 1 ms resolution would be much better
than 4ms or 10ms (HZ=250 or HZ=100 respectively)

For TCP flows in the DC, Google has used usec resolution for more
than two years with great success [1]

Receive size autotuning (DRS) is indeed more precise and converges
faster to optimal window size.

This patch converts tp->tcp_mstamp to a plain u64 value storing
a 1 usec TCP clock.

This choice will allow us to upstream the 1 usec TS option as
discussed in IETF 97.

[1] https://www.ietf.org/proceedings/97/slides/slides-97-tcpm-tcp-options-for-low-latency-00.pdf

Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-17 16:06:01 -04:00
..
ipset
Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next
2017-05-01 10:47:53 -04:00
ipvs
Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf
2017-05-03 10:11:26 -04:00
core.c
netfilter: nf_queue: only call synchronize_net twice if nf_queue is active
2017-05-01 11:19:12 +02:00
Kconfig
netfilter: nft_exthdr: add TCP option matching
2017-02-08 14:17:09 +01:00
Makefile
netfilter: nf_tables: add bitmap set type
2017-02-08 14:16:21 +01:00
nf_conntrack_acct.c
netfilter: conntrack: mark extension structs as const
2017-04-26 09:30:22 +02:00
nf_conntrack_amanda.c
netfilter: helper: add build-time asserts for helper data size
2017-04-19 17:55:16 +02:00
nf_conntrack_broadcast.c
…
nf_conntrack_core.c
Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2017-05-10 10:30:46 -07:00
nf_conntrack_ecache.c
netfilter: conntrack: mark extension structs as const
2017-04-26 09:30:22 +02:00
nf_conntrack_expect.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next
2017-05-01 10:47:53 -04:00
nf_conntrack_extend.c
netfilter: nf_ct_ext: invoke destroy even when ext is not attached
2017-05-01 11:48:49 +02:00
nf_conntrack_ftp.c
netfilter: helpers: remove data_len usage for inkernel helpers
2017-04-19 17:55:17 +02:00
nf_conntrack_h323_asn1.c
netfilter: nf_conntrack_h323: fix off-by-one in DecodeQ931
2016-07-11 12:32:45 +02:00
nf_conntrack_h323_main.c
netfilter: helpers: remove data_len usage for inkernel helpers
2017-04-19 17:55:17 +02:00
nf_conntrack_h323_types.c
…
nf_conntrack_helper.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf
2017-05-03 10:11:26 -04:00
nf_conntrack_irc.c
netfilter: helpers: remove data_len usage for inkernel helpers
2017-04-19 17:55:17 +02:00
nf_conntrack_l3proto_generic.c
netfilter: Convert print_tuple functions to return void
2014-11-05 14:10:33 -05:00
nf_conntrack_labels.c
netfilter: conntrack: mark extension structs as const
2017-04-26 09:30:22 +02:00
nf_conntrack_netbios_ns.c
netfilter: helper: add build-time asserts for helper data size
2017-04-19 17:55:16 +02:00
nf_conntrack_netlink.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf
2017-05-03 10:11:26 -04:00
nf_conntrack_pptp.c
netfilter: pptp: attach nat extension when needed
2017-04-26 09:30:22 +02:00
nf_conntrack_proto_dccp.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next
2017-05-01 10:47:53 -04:00
nf_conntrack_proto_generic.c
netfilter: remove ip_conntrack* sysctl compat code
2016-08-13 13:27:13 +02:00
nf_conntrack_proto_gre.c
netns: make struct pernet_operations::id unsigned int
2016-11-18 10:59:15 -05:00
nf_conntrack_proto_sctp.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next
2017-05-01 10:47:53 -04:00
nf_conntrack_proto_tcp.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next
2017-05-01 10:47:53 -04:00
nf_conntrack_proto_udp.c
netfilter: conntrack: no need to pass ctinfo to error handler
2017-02-02 14:31:51 +01:00
nf_conntrack_proto.c
netfilter: nf_conntrack: remove double assignment
2017-04-14 01:54:23 +02:00
nf_conntrack_sane.c
netfilter: helpers: remove data_len usage for inkernel helpers
2017-04-19 17:55:17 +02:00
nf_conntrack_seqadj.c
netfilter: conntrack: mark extension structs as const
2017-04-26 09:30:22 +02:00
nf_conntrack_sip.c
netfilter: helpers: remove data_len usage for inkernel helpers
2017-04-19 17:55:17 +02:00
nf_conntrack_snmp.c
…
nf_conntrack_standalone.c
netfilter: Use seq_puts()/seq_putc() where possible
2017-04-07 17:29:21 +02:00
nf_conntrack_tftp.c
netfilter: helpers: remove data_len usage for inkernel helpers
2017-04-19 17:55:17 +02:00
nf_conntrack_timeout.c
netfilter: conntrack: mark extension structs as const
2017-04-26 09:30:22 +02:00
nf_conntrack_timestamp.c
netfilter: conntrack: mark extension structs as const
2017-04-26 09:30:22 +02:00
nf_dup_netdev.c
netfilter: add and use nf_fwd_netdev_egress
2016-12-06 21:48:22 +01:00
nf_internals.h
netfilter: nf_queue: only call synchronize_net twice if nf_queue is active
2017-05-01 11:19:12 +02:00
nf_log_common.c
netfilter: nf_log: do not assume ethernet header in netdev family
2016-12-04 20:45:33 +01:00
nf_log_netdev.c
netfilter: nf_log: do not assume ethernet header in netdev family
2016-12-04 20:45:33 +01:00
nf_log.c
netfilter: nf_log: don't call synchronize_rcu in nf_log_unset
2017-05-01 11:19:07 +02:00
nf_nat_amanda.c
netfilter: nat: nf_nat_mangle_{udp,tcp}_packet returns boolean
2017-04-06 22:01:38 +02:00
nf_nat_core.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next
2017-05-01 10:47:53 -04:00
nf_nat_ftp.c
…
nf_nat_helper.c
netfilter: nat: nf_nat_mangle_{udp,tcp}_packet returns boolean
2017-04-06 22:01:38 +02:00
nf_nat_irc.c
netfilter: nat: nf_nat_mangle_{udp,tcp}_packet returns boolean
2017-04-06 22:01:38 +02:00
nf_nat_proto_common.c
netfilter: use IS_ENABLED() macro
2014-06-30 11:38:03 +02:00
nf_nat_proto_dccp.c
netfilter: built-in NAT support for DCCP
2016-12-04 20:45:30 +01:00
nf_nat_proto_sctp.c
netfilter: nf_nat_sctp: fix ICMP packet to be dropped accidently
2017-03-08 18:04:06 +01:00
nf_nat_proto_tcp.c
net: Change pseudohdr argument of inet_proto_csum_replace* to be a bool
2015-08-17 21:33:06 -07:00
nf_nat_proto_udp.c
netfilter: nat: merge udp and udplite helpers
2017-01-03 14:33:25 +01:00
nf_nat_proto_unknown.c
…
nf_nat_redirect.c
netfilter: make it safer during the inet6_dev->addr_list traversal
2017-04-08 23:52:16 +02:00
nf_nat_sip.c
netfilter: replace strnicmp with strncasecmp
2014-10-14 02:18:24 +02:00
nf_nat_tftp.c
…
nf_queue.c
netfilter: nf_queue: only call synchronize_net twice if nf_queue is active
2017-05-01 11:19:12 +02:00
nf_sockopt.c
netfilter: don't use mutex_lock_interruptible()
2014-08-08 16:47:23 +02:00
nf_synproxy_core.c
tcp: switch TCP TS option (RFC 7323) to 1ms clock
2017-05-17 16:06:01 -04:00
nf_tables_api.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf
2017-05-03 10:11:26 -04:00
nf_tables_core.c
netfilter: nf_tables: simplify the basic expressions' init routine
2016-11-09 23:42:23 +01:00
nf_tables_inet.c
netfilter: Add the missed return value check of nft_register_chain_type
2016-09-12 19:54:45 +02:00
nf_tables_netdev.c
netfilter: nf_tables: add nft_is_base_chain() helper
2017-04-06 18:32:04 +02:00
nf_tables_trace.c
netfilter: Add nfnl_msg_type() helper function
2017-04-07 16:31:36 +02:00
nfnetlink_acct.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next
2017-05-01 10:47:53 -04:00
nfnetlink_cthelper.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next
2017-05-01 10:47:53 -04:00
nfnetlink_cttimeout.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next
2017-05-01 10:47:53 -04:00
nfnetlink_log.c
netfilter: nf_log: don't call synchronize_rcu in nf_log_unset
2017-05-01 11:19:07 +02:00
nfnetlink_queue.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next
2017-05-01 10:47:53 -04:00
nfnetlink.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next
2017-05-01 10:47:53 -04:00
nft_bitwise.c
netfilter: nf_tables: simplify the basic expressions' init routine
2016-11-09 23:42:23 +01:00
nft_byteorder.c
netfilter: nf_tables: simplify the basic expressions' init routine
2016-11-09 23:42:23 +01:00
nft_cmp.c
netfilter: nf_tables: simplify the basic expressions' init routine
2016-11-09 23:42:23 +01:00
nft_compat.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next
2017-05-01 10:47:53 -04:00
nft_counter.c
netfilter: provide nft_ctx in object init function
2017-03-13 13:42:00 +01:00
nft_ct.c
netfilter: nft_ct: allow to set ctnetlink event types of a connection
2017-04-19 17:55:16 +02:00
nft_dup_netdev.c
netfilter: nf_tables: add packet duplication to the netdev family
2016-01-03 21:04:23 +01:00
nft_dynset.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf
2017-05-03 10:11:26 -04:00
nft_exthdr.c
netfilter: Remove exceptional & on function name
2017-04-07 18:24:47 +02:00
nft_fib_inet.c
netfilter: nf_tables: use hook state from xt_action_param structure
2016-11-03 11:52:34 +01:00
nft_fib.c
netfilter: nft_fib: Support existence check
2017-03-13 13:45:36 +01:00
nft_fwd_netdev.c
netfilter: add and use nf_fwd_netdev_egress
2016-12-06 21:48:22 +01:00
nft_hash.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next
2017-05-01 10:47:53 -04:00
nft_immediate.c
netfilter: nf_tables: simplify the basic expressions' init routine
2016-11-09 23:42:23 +01:00
nft_limit.c
netfilter: limit: use per-rule spinlock to improve the scalability
2017-03-13 19:30:31 +01:00
nft_log.c
netfilter: nft_log: restrict the log prefix length to 127
2017-01-24 21:46:29 +01:00
nft_lookup.c
netfilter: nf_tables: add nft_set_lookup()
2017-03-06 18:23:23 +01:00
nft_masq.c
netfilter: nf_tables: validate the expr explicitly after init successfully
2017-03-06 18:22:12 +01:00
nft_meta.c
netfilter: Remove exceptional & on function name
2017-04-07 18:24:47 +02:00
nft_nat.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2017-03-23 16:41:27 -07:00
nft_numgen.c
netfilter: Remove exceptional & on function name
2017-04-07 18:24:47 +02:00
nft_objref.c
netfilter: nf_tables: add nft_set_lookup()
2017-03-06 18:23:23 +01:00
nft_payload.c
netfilter: nft_payload: mangle ckecksum if NFT_PAYLOAD_L4CSUM_PSEUDOHDR is set
2016-12-14 23:39:11 +01:00
nft_queue.c
netfilter: Remove exceptional & on function name
2017-04-07 18:24:47 +02:00
nft_quota.c
netfilter: provide nft_ctx in object init function
2017-03-13 13:42:00 +01:00
nft_range.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2016-12-03 12:29:53 -05:00
nft_redir.c
netfilter: nf_tables: validate the expr explicitly after init successfully
2017-03-06 18:22:12 +01:00
nft_reject_inet.c
netfilter: nf_tables: validate the expr explicitly after init successfully
2017-03-06 18:22:12 +01:00
nft_reject.c
netfilter: nf_tables: validate the expr explicitly after init successfully
2017-03-06 18:22:12 +01:00
nft_rt.c
netfilter: nf_tables: use hook state from xt_action_param structure
2016-11-03 11:52:34 +01:00
nft_set_bitmap.c
netfilter: nft_set_bitmap: free dummy elements when destroy the set
2017-04-24 20:05:25 +02:00
nft_set_hash.c
netfilter: Remove unnecessary cast on void pointer
2017-04-07 17:29:17 +02:00
nft_set_rbtree.c
netfilter: nft_set_rbtree: use per-set rwlock to improve the scalability
2017-03-13 19:30:43 +01:00
x_tables.c
mm, vmalloc: use __GFP_HIGHMEM implicitly
2017-05-08 17:15:13 -07:00
xt_addrtype.c
netfilter: x_tables: move hook state into xt_action_param structure
2016-11-03 10:56:21 +01:00
xt_AUDIT.c
audit: normalize NETFILTER_PKT
2017-05-02 10:16:04 -04:00
xt_bpf.c
xtables: extend matches and targets with .usersize
2017-01-09 17:24:55 +01:00
xt_cgroup.c
xtables: extend matches and targets with .usersize
2017-01-09 17:24:55 +01:00
xt_CHECKSUM.c
…
xt_CLASSIFY.c
…
xt_cluster.c
netfilter: remove nf_ct_is_untracked
2017-04-15 11:51:33 +02:00
xt_comment.c
…
xt_connbytes.c
netfilter: add and use nf_ct_netns_get/put
2016-12-04 21:16:50 +01:00
xt_connlabel.c
netfilter: remove nf_ct_is_untracked
2017-04-15 11:51:33 +02:00
xt_connlimit.c
xtables: extend matches and targets with .usersize
2017-01-09 17:24:55 +01:00
xt_connmark.c
netfilter: remove nf_ct_is_untracked
2017-04-15 11:51:33 +02:00
xt_CONNSECMARK.c
netfilter: add and use nf_ct_netns_get/put
2016-12-04 21:16:50 +01:00
xt_conntrack.c
netfilter: kill the fake untracked conntrack objects
2017-04-15 11:47:57 +02:00
xt_cpu.c
…
xt_CT.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf
2017-05-03 10:11:26 -04:00
xt_dccp.c
…
xt_devgroup.c
netfilter: x_tables: move hook state into xt_action_param structure
2016-11-03 10:56:21 +01:00
xt_dscp.c
netfilter: x_tables: move hook state into xt_action_param structure
2016-11-03 10:56:21 +01:00
xt_DSCP.c
netfilter: fix various sparse warnings
2014-11-13 12:14:42 +01:00
xt_ecn.c
…
xt_esp.c
…
xt_hashlimit.c
netfilter: Remove unnecessary cast on void pointer
2017-04-07 17:29:17 +02:00
xt_helper.c
netfilter: add and use nf_ct_netns_get/put
2016-12-04 21:16:50 +01:00
xt_hl.c
…
xt_HL.c
…
xt_HMARK.c
netfilter: remove nf_ct_is_untracked
2017-04-15 11:51:33 +02:00
xt_IDLETIMER.c
netfilter: IDLETIMER: fix race condition when destroy the target
2016-04-29 14:28:48 +02:00
xt_ipcomp.c
netfilter: xt_ipcomp: add "ip[6]t_ipcomp" module alias name
2016-10-17 17:38:19 +02:00
xt_iprange.c
…
xt_ipvs.c
netfilter: remove nf_ct_is_untracked
2017-04-15 11:51:33 +02:00
xt_l2tp.c
…
xt_LED.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2014-08-05 18:46:26 -07:00
xt_length.c
…
xt_limit.c
netfilter: limit: use per-rule spinlock to improve the scalability
2017-03-13 19:30:31 +01:00
xt_LOG.c
netfilter: x_tables: move hook state into xt_action_param structure
2016-11-03 10:56:21 +01:00
xt_mac.c
…
xt_mark.c
netfilter: xt_MARK: Add ARP support
2015-05-14 13:00:27 +02:00
xt_multiport.c
netfilter: xt_multiport: Fix wrong unmatch result with multiple ports
2016-12-06 21:48:20 +01:00
xt_nat.c
netfilter: nat: add dependencies on conntrack module
2016-12-04 21:16:51 +01:00
xt_NETMAP.c
netfilter: nat: add dependencies on conntrack module
2016-12-04 21:16:51 +01:00
xt_nfacct.c
netfilter: x_tables: move hook state into xt_action_param structure
2016-11-03 10:56:21 +01:00
xt_NFLOG.c
netfilter: x_tables: move hook state into xt_action_param structure
2016-11-03 10:56:21 +01:00
xt_NFQUEUE.c
netfilter: x_tables: move hook state into xt_action_param structure
2016-11-03 10:56:21 +01:00
xt_osf.c
netfilter: x_tables: move hook state into xt_action_param structure
2016-11-03 10:56:21 +01:00
xt_owner.c
sched/headers: Prepare to remove <linux/cred.h> inclusion from <linux/sched.h>
2017-03-02 08:42:31 +01:00
xt_physdev.c
netfilter: physdev: add missed blank
2016-08-12 00:42:14 +02:00
xt_pkttype.c
netfilter: pkttype: unnecessary to check ipv6 multicast address
2017-01-18 20:32:43 +01:00
xt_policy.c
netfilter: x_tables: move hook state into xt_action_param structure
2016-11-03 10:56:21 +01:00
xt_quota.c
xtables: extend matches and targets with .usersize
2017-01-09 17:24:55 +01:00
xt_rateest.c
xtables: extend matches and targets with .usersize
2017-01-09 17:24:55 +01:00
xt_RATEEST.c
xtables: extend matches and targets with .usersize
2017-01-09 17:24:55 +01:00
xt_realm.c
…
xt_recent.c
treewide: use kv[mz]alloc* rather than opencoded variants
2017-05-08 17:15:13 -07:00
xt_REDIRECT.c
netfilter: nat: add dependencies on conntrack module
2016-12-04 21:16:51 +01:00
xt_repldata.h
net: netfilter: LLVMLinux: vlais-netfilter
2014-06-07 11:44:39 -07:00
xt_sctp.c
sctp: rename WORD_TRUNC/ROUND macros
2016-09-22 03:13:26 -04:00
xt_SECMARK.c
…
xt_set.c
netfilter: ipset: Improve skbinfo get/init helpers
2016-11-10 13:28:42 +01:00
xt_socket.c
netfilter: xt_socket: Fix broken IPv6 handling
2017-04-24 20:06:29 +02:00
xt_state.c
netfilter: kill the fake untracked conntrack objects
2017-04-15 11:47:57 +02:00
xt_statistic.c
…
xt_string.c
xtables: extend matches and targets with .usersize
2017-01-09 17:24:55 +01:00
xt_tcpmss.c
…
xt_TCPMSS.c
netfilter: xt_TCPMSS: add more sanity tests on tcph->doff
2017-04-08 22:24:19 +02:00
xt_TCPOPTSTRIP.c
net: Change pseudohdr argument of inet_proto_csum_replace* to be a bool
2015-08-17 21:33:06 -07:00
xt_tcpudp.c
netfilter: Convert FWINV<[foo]> macros and uses to NF_INVF
2016-07-03 10:55:07 +02:00
xt_TEE.c
xtables: extend matches and targets with .usersize
2017-01-09 17:24:55 +01:00
xt_time.c
ktime: Get rid of the union
2016-12-25 17:21:22 +01:00
xt_TPROXY.c
netfilter: make it safer during the inet6_dev->addr_list traversal
2017-04-08 23:52:16 +02:00
xt_TRACE.c
netfilter: xt_TRACE: add explicitly nf_logger_find_get call
2016-06-23 13:26:49 +02:00
xt_u32.c
…