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df629abf3e
freebsd-dev/sys/netinet
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Alexander V. Chernikov df629abf3e Rework LLE code locking: 
* struct llentry is now basically split into 2 pieces:
  all fields within 64 bytes (amd64) are now protected by both
  ifdata lock AND lle lock, e.g. you require both locks to be held
  exclusively for modification. All data necessary for fast path
  operations is kept here. Some fields were added:
  - r_l3addr - makes lookup key liev within first 64 bytes.
  - r_flags - flags, containing pre-compiled decision whether given
    lle contains usable data or not. Current the only flag is RLLE_VALID.
  - r_len - prepend data len, currently unused
  - r_kick - used to provide feedback to control plane (see below).
  All other fields are protected by lle lock.
* Add simple state machine for ARP to handle "about to expire" case:
  Current model (for the fast path) is the following:
  - rlock afdata
  - find / rlock rte
  - runlock afdata
  - see if "expire time" is approaching
    (time_uptime + la->la_preempt > la->la_expire)
  - if true, call arprequest() and decrease la_preempt
  - store MAC and runlock rte
  New model (data plane):
  - rlock afdata
  - find rte
  - check if it can be used using r_* fields only
  - if true, store MAC
  - if r_kick field != 0 set it to 0.
  - runlock afdata
  New mode (control plane):
  - schedule arptimer to be called in (V_arpt_keep - V_arp_maxtries)
    seconds instead of V_arpt_keep.
  - on first timer invocation change state from ARP_LLINFO_REACHABLE
    to ARP_LLINFO_VERIFY, sets r_kick to 1 and shedules next call in
    V_arpt_rexmit (default to 1 sec).
  - on subsequent timer invocations in ARP_LLINFO_VERIFY state, checks
    for r_kick value: reschedule if not changed, and send arprequest()
    if set to zero (e.g. entry was used).
* Convert IPv4 path to use new single-lock approach. IPv6 bits to follow.
* Slow down in_arpinput(): now valid reply will (in most cases) require
  acquiring afdata WLOCK twice. This is requirement for storing changed
  lle data. This change will be slightly optimized in future.
* Provide explicit hash link/unlink functions for both ipv4/ipv6 code.
  This will probably be moved to generic lle code once we have per-AF
  hashing callback inside lltable.
* Perform lle unlink on deletion immediately instead of delaying it to
  the timer routine.
* Make r244183 more explicit: use new LLE_CALLOUTREF flag to indicate the
  presence of lle reference used for safe callout calls.
2014-11-16 20:12:49 +00:00
..
cc Remove SYSCTL_VNET_* macros, and simply put CTLFLAG_VNET where needed. 2014-11-07 09:39:05 +00:00
khelp The TCP PAWS fix for kernels with fast tick rates (r231767) changed the TCP 2012-08-17 01:49:51 +00:00
libalias It'll be okay to use LibAliasDetachHandlers() here, relying 2013-12-25 09:43:51 +00:00
accf_data.c
accf_dns.c
accf_http.c
cc.h
icmp6.h Migrate structs in6_ifstat and icmp6_ifstat to PCPU counters. 2013-07-09 09:59:46 +00:00
icmp_var.h Remove more constants related to static sysctl nodes. The MAXID constants 2014-02-25 18:44:33 +00:00
if_atm.c The r48589 promised to remove implicit inclusion of if_var.h soon. Prepare 2013-10-26 17:58:36 +00:00
if_atm.h Add const qualifier to the dst parameter of the ifnet if_output method. 2013-04-26 12:50:32 +00:00
if_ether.c Rework LLE code locking: 2014-11-16 20:12:49 +00:00
if_ether.h Switch IPv4 output path to use new routing api. 2014-10-19 21:07:35 +00:00
igmp_var.h Merge 'struct ip6protosw' and 'struct protosw' into one. Now we have 2014-08-08 01:57:15 +00:00
igmp.c Remove SYSCTL_VNET_* macros, and simply put CTLFLAG_VNET where needed. 2014-11-07 09:39:05 +00:00
igmp.h
in_cksum.c nobody uses this file except the userspace ipfw code, but the cast 2012-07-31 08:04:49 +00:00
in_debug.c
in_gif.c Sync to HEAD@r274297. 2014-11-08 18:13:35 +00:00
in_gif.h Overhaul if_gif(4): 2014-10-14 13:31:47 +00:00
in_kdtrace.c dtrace sdt: remove the ugly sname parameter of SDT_PROBE_DEFINE 2013-11-26 08:46:27 +00:00
in_kdtrace.h dtrace sdt: remove the ugly sname parameter of SDT_PROBE_DEFINE 2013-11-26 08:46:27 +00:00
in_mcast.c Convert inp_lookup_mcast_ifp() to new routing api. 2014-10-23 21:38:54 +00:00
in_pcb.c Sync to HEAD@r274297. 2014-11-08 18:13:35 +00:00
in_pcb.h Add scope zone id to the in_endpoints and hc_metrics structures. 2014-09-10 16:26:18 +00:00
in_pcbgroup.c Introduce INP6_PCBHASHKEY macro. Replace usage of hardcoded part of 2014-09-10 12:35:42 +00:00
in_proto.c Finish r274118: remove useless fields from struct domain. 2014-11-06 14:39:04 +00:00
in_rmx.c Switch route radix to dual-lock model: 2014-11-10 00:07:06 +00:00
in_rss.c Ensure the correct software IPv4 hash is done based on the configured 2014-09-16 03:26:42 +00:00
in_rss.h Implement IPv4 RSS software hash functions to use during packet ingress 2014-09-09 03:10:21 +00:00
in_systm.h
in_var.h Separate radix and routing: use different structures for route and 2014-11-09 00:36:39 +00:00
in.c Rework LLE code locking: 2014-11-16 20:12:49 +00:00
in.h Add support for receiving and setting flowtype, flowid and RSS bucket 2014-09-09 01:45:39 +00:00
ip6.h Eliminate use of M_EXT in IP6_EXTHDR_CHECK() by trimming a redundant 2014-10-05 06:28:53 +00:00
ip_carp.c Sync to HEAD@r274297. 2014-11-08 18:13:35 +00:00
ip_carp.h Merge 'struct ip6protosw' and 'struct protosw' into one. Now we have 2014-08-08 01:57:15 +00:00
ip_divert.c Convert netinet6/ to use new routing API. 2014-11-04 15:39:56 +00:00
ip_divert.h
ip_dummynet.h ECN marking implenetation for dummynet. 2014-06-01 07:28:24 +00:00
ip_ecn.c
ip_ecn.h
ip_encap.c Merge 'struct ip6protosw' and 'struct protosw' into one. Now we have 2014-08-08 01:57:15 +00:00
ip_encap.h Merge 'struct ip6protosw' and 'struct protosw' into one. Now we have 2014-08-08 01:57:15 +00:00
ip_fastfwd.c Sync to HEAD@r274297. 2014-11-08 18:13:35 +00:00
ip_fw.h Fix matching default rule on clear/show commands. 2014-10-13 13:49:28 +00:00
ip_gre.c Overhaul if_gre(4). 2014-11-07 19:13:19 +00:00
ip_icmp.c Separate radix and routing: use different structures for route and 2014-11-09 00:36:39 +00:00
ip_icmp.h Merge 'struct ip6protosw' and 'struct protosw' into one. Now we have 2014-08-08 01:57:15 +00:00
ip_id.c Back out r249318, r249320 and r249327 due to a heisenbug most 2013-05-06 16:42:18 +00:00
ip_input.c Sync to HEAD@r274297. 2014-11-08 18:13:35 +00:00
ip_ipsec.c Remove SYSCTL_VNET_* macros, and simply put CTLFLAG_VNET where needed. 2014-11-07 09:39:05 +00:00
ip_ipsec.h
ip_mroute.c Remove SYSCTL_VNET_* macros, and simply put CTLFLAG_VNET where needed. 2014-11-07 09:39:05 +00:00
ip_mroute.h Migrate structs arpstat, icmpstat, mrtstat, pimstat and udpstat to PCPU 2013-07-09 09:50:15 +00:00
ip_options.c * Increase nh_flags to be u16 thus reducing nhop payload to be 48 bytes 2014-10-25 15:32:56 +00:00
ip_options.h Make net.inet.ip.sourceroute, net.inet.ip.accept_sourceroute, and 2014-09-15 07:20:40 +00:00
ip_output.c Sync to HEAD@r274095. 2014-11-04 18:22:33 +00:00
ip_var.h Replace 'struct route *' if_output() argument with 'struct nhop_info *'. 2014-11-09 16:33:04 +00:00
ip.h
pim_var.h Merge 'struct ip6protosw' and 'struct protosw' into one. Now we have 2014-08-08 01:57:15 +00:00
pim.h
raw_ip.c Remove SYSCTL_VNET_* macros, and simply put CTLFLAG_VNET where needed. 2014-11-07 09:39:05 +00:00
sctp_asconf.c Address another warnings reported by Patrick Laimbock when compiling 2014-09-07 17:07:19 +00:00
sctp_asconf.h Pass the src and dst address of a received packet explicitly around. 2012-06-28 16:01:08 +00:00
sctp_auth.c Use a consistent type for the number of HMAC algorithms. 2014-09-16 14:20:33 +00:00
sctp_auth.h Use a consistent type for the number of HMAC algorithms. 2014-09-16 14:20:33 +00:00
sctp_bsd_addr.c In 2013-11-30 12:51:19 +00:00
sctp_bsd_addr.h Do packet logging in a consistent way. 2012-06-24 21:25:54 +00:00
sctp_cc_functions.c Small cleanup which addresses a warning regaring the truncation 2014-09-16 13:48:46 +00:00
sctp_constants.h Fix the handling of sysctl variables when used with VIMAGE. 2014-09-06 19:12:14 +00:00
sctp_crc32.c
sctp_crc32.h
sctp_dtrace_declare.h - For kernel compiled only with KDTRACE_HOOKS and not any lock debugging 2013-11-25 07:38:45 +00:00
sctp_dtrace_define.h dtrace sdt: remove the ugly sname parameter of SDT_PROBE_DEFINE 2013-11-26 08:46:27 +00:00
sctp_header.h Fix the reported streams in a SCTP_STREAM_RESET_EVENT, if a 2014-10-16 15:36:04 +00:00
sctp_indata.c Add support for the SCTP_PR_SUPPORTED socket option as specified in 2014-08-02 21:36:40 +00:00
sctp_indata.h Code cleanups. 2013-07-03 18:48:43 +00:00
sctp_input.c Fix the reported streams in a SCTP_STREAM_RESET_EVENT, if a 2014-10-16 15:36:04 +00:00
sctp_input.h Fix the reported streams in a SCTP_STREAM_RESET_EVENT, if a 2014-10-16 15:36:04 +00:00
sctp_lock_bsd.h
sctp_os_bsd.h Hide 'struct rtentry' and all its macro inside new header: 2014-11-04 17:28:13 +00:00
sctp_os.h
sctp_output.c Fix a use of an uninitialized variable by makeing sure 2014-10-25 09:25:29 +00:00
sctp_output.h Ensure that the list of streams sent in a stream reset parameter fits 2014-10-08 15:30:59 +00:00
sctp_pcb.c Use a consistent type for the number of HMAC algorithms. 2014-09-16 14:20:33 +00:00
sctp_pcb.h Add support for the SCTP_AUTH_SUPPORTED and SCTP_ASCONF_SUPPORTED 2014-08-12 11:30:16 +00:00
sctp_peeloff.c Add support for the SCTP_AUTH_SUPPORTED and SCTP_ASCONF_SUPPORTED 2014-08-12 11:30:16 +00:00
sctp_peeloff.h Remove unused function. 2012-11-25 14:25:08 +00:00
sctp_ss_functions.c
sctp_structs.h Chunk IDs are 8 bit entities, not 16 bit. 2014-09-15 19:38:34 +00:00
sctp_syscalls.c Avoid dynamic syscall overhead for statically compiled modules. 2014-10-26 19:42:44 +00:00
sctp_sysctl.c Don't zero the stats before they are read out. 2014-11-01 10:35:45 +00:00
sctp_sysctl.h Fix the handling of sysctl variables when used with VIMAGE. 2014-09-06 19:12:14 +00:00
sctp_timer.c Add support for the SCTP_PR_SUPPORTED socket option as specified in 2014-08-02 21:36:40 +00:00
sctp_timer.h
sctp_uio.h Add support for the SCTP_PR_STREAM_STATUS and SCTP_PR_ASSOC_STATUS 2014-08-13 15:50:16 +00:00
sctp_usrreq.c Ensure that the number of stream reported in srs_number_streams is 2014-10-08 15:29:49 +00:00
sctp_var.h Merge 'struct ip6protosw' and 'struct protosw' into one. Now we have 2014-08-08 01:57:15 +00:00
sctp.h Add support for the SCTP_PR_STREAM_STATUS and SCTP_PR_ASSOC_STATUS 2014-08-13 15:50:16 +00:00
sctputil.c Add context pointer and source address to the UDP tunnel callback 2014-10-10 06:08:59 +00:00
sctputil.h Cleanup sctp_send_initiate() and sctp_send_initiate_ack() to be 2014-08-01 12:42:37 +00:00
siftr.c The SYSCTL data pointers can come from userspace and must not be 2014-10-28 12:00:39 +00:00
tcp_debug.c Switch the entire IPv4 stack to keep the IP packet header 2012-10-22 21:09:03 +00:00
tcp_debug.h
tcp_fsm.h
tcp_hostcache.c Remove SYSCTL_VNET_* macros, and simply put CTLFLAG_VNET where needed. 2014-11-07 09:39:05 +00:00
tcp_hostcache.h Add scope zone id to the in_endpoints and hc_metrics structures. 2014-09-10 16:26:18 +00:00
tcp_input.c Remove SYSCTL_VNET_* macros, and simply put CTLFLAG_VNET where needed. 2014-11-07 09:39:05 +00:00
tcp_lro.c Merge r254336 from user/np/cxl_tuning. 2013-08-28 23:00:34 +00:00
tcp_lro.h Merge r254336 from user/np/cxl_tuning. 2013-08-28 23:00:34 +00:00
tcp_offload.c Convert netinet6/ to use new routing API. 2014-11-04 15:39:56 +00:00
tcp_offload.h
tcp_output.c Sync to HEAD@r274297. 2014-11-08 18:13:35 +00:00
tcp_reass.c Satisfy assertion in m_demote(). 2014-09-04 19:28:02 +00:00
tcp_sack.c Remove SYSCTL_VNET_* macros, and simply put CTLFLAG_VNET where needed. 2014-11-07 09:39:05 +00:00
tcp_seq.h
tcp_subr.c Sync to HEAD@r274297. 2014-11-08 18:13:35 +00:00
tcp_syncache.c Sync to HEAD@r274297. 2014-11-08 18:13:35 +00:00
tcp_syncache.h Introduce spares in the TCP syncache and timewait structures 2013-09-21 10:01:51 +00:00
tcp_timer.c Fix a race condition in TCP timewait between tcp_tw_2msl_reuse() and 2014-10-30 08:53:56 +00:00
tcp_timer.h Fix a race condition in TCP timewait between tcp_tw_2msl_reuse() and 2014-10-30 08:53:56 +00:00
tcp_timewait.c Sync to HEAD@r274297. 2014-11-08 18:13:35 +00:00
tcp_usrreq.c Fix a race condition in TCP timewait between tcp_tw_2msl_reuse() and 2014-10-30 08:53:56 +00:00
tcp_var.h Restore spares used in "struct tcpcb" and bump "__FreeBSD_version" to 2014-11-03 13:01:58 +00:00
tcp.h Add placeholder constants to reserve a portion of the socket option 2013-02-01 15:32:20 +00:00
tcpip.h
toecore.c * Move lle creation/deletion from lla_lookup to separate functions: 2014-11-15 18:54:07 +00:00
toecore.h * Convert TOE framework to use new routing api. 2014-10-25 18:25:00 +00:00
toeplitz.c Several years after initial development, merge prototype support for 2014-03-15 00:57:50 +00:00
toeplitz.h Several years after initial development, merge prototype support for 2014-03-15 00:57:50 +00:00
udp_usrreq.c Remove SYSCTL_VNET_* macros, and simply put CTLFLAG_VNET where needed. 2014-11-07 09:39:05 +00:00
udp_var.h Add context pointer and source address to the UDP tunnel callback 2014-10-10 06:08:59 +00:00
udp.h Add placeholder constants to reserve a portion of the socket option 2013-02-01 15:32:20 +00:00
udplite.h Add support for UDP-Lite protocol (RFC 3828) to IPv4 and IPv6 stacks. 2014-04-07 01:53:03 +00:00