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opnsense-src/sys/netinet6
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Adrian Chadd 0be189151f Implement RSS hashing/re-hashing for IPv6 ingress packets. 
This mirrors the basic IPv4 implementation - IPv6 packets under RSS
now are checked for a correct RSS hash and if one isn't provided,
it's done in software.

This only handles the initial receive - it doesn't yet handle
reinjecting / rehashing packets after being decapsulated from
various tunneling setups.  That'll come in some follow-up work.

For non-RSS users, this is almost a giant no-op.

It does change a couple of ipv6 methods to use const mbuf * instead of
mbuf * but it doesn't have any functional changes.

So, the following now occurs:

* If the NIC doesn't do any RSS hashing, it's all done in software.
  Single-queue, non-RSS NICs will now have the RX path distributed
  into multiple receive netisr queues.

* If the NIC provides the wrong hash (eg only IPv6 hash when we needed
  an IPv6 TCP hash, or IPv6 UDP hash when we expected IPv6 hash)
  then the hash is recalculated.

* .. if the hash is recalculated, it'll end up being injected into
  the correct netisr queue for v6 processing.

Submitted by:	Tiwei Bie <btw@mail.ustc.edu.cn>
Differential Revision:	https://reviews.freebsd.org/D3504
2015-08-29 07:14:29 +00:00
..
dest6.c The r48589 promised to remove implicit inclusion of if_var.h soon. Prepare 2013-10-26 17:58:36 +00:00
frag6.c Move ip6_deletefraghdr() to frag6.c. 2015-02-16 05:58:32 +00:00
icmp6.c Move comment to the right position. 2015-07-03 09:53:56 +00:00
icmp6.h
in6.c - Deprecate IN6_IFF_NODAD. It was used to prevent DAD on a loopback 2015-08-24 05:21:49 +00:00
in6.h Provide functions to determine presence of a given address 2015-04-17 11:57:06 +00:00
in6_cksum.c Fix the checksum computation for UDPLite/IPv6. This requires the 2014-10-02 10:32:24 +00:00
in6_gif.c Eliminate the use of m_copydata() in gif_encapcheck(). 2015-07-29 14:07:43 +00:00
in6_ifattach.c - Deprecate IN6_IFF_NODAD. It was used to prevent DAD on a loopback 2015-08-24 05:21:49 +00:00
in6_ifattach.h Use FF02:0:0:0:0:2:FF00::/104 prefix for IPv6 Node Information Group 2013-05-04 19:16:26 +00:00
in6_mcast.c Fix the IPV6_MULTICAST_IF sockopt handling. RFC 3493 says when the 2015-04-10 19:09:51 +00:00
in6_pcb.c Decompose TCP INP_INFO lock to increase short-lived TCP connections scalability: 2015-08-03 12:13:54 +00:00
in6_pcb.h Make in6_pcblookup_hash_locked and in6_pcbladdr static. 2014-09-10 13:17:35 +00:00
in6_pcbgroup.c Refactor / restructure the RSS code into generic, IPv4 and IPv6 specific 2015-01-18 18:06:40 +00:00
in6_proto.c Renove faith(4) and faithd(8) from base. It looks like industry 2014-11-09 21:33:01 +00:00
in6_rmx.c Rename rt_foreach_fib() to rt_foreach_fib_walk(). 2015-08-10 20:50:31 +00:00
in6_rss.c Implement RSS hashing/re-hashing for IPv6 ingress packets. 2015-08-29 07:14:29 +00:00
in6_rss.h Implement RSS hashing/re-hashing for IPv6 ingress packets. 2015-08-29 07:14:29 +00:00
in6_src.c Properly handle IPV6_NEXTHOP socket option in selectroute(). 2015-08-02 12:40:56 +00:00
in6_var.h - Deprecate IN6_IFF_NODAD. It was used to prevent DAD on a loopback 2015-08-24 05:21:49 +00:00
ip6.h
ip6_ecn.h
ip6_forward.c Fix possible use after free due to security policy deletion. 2015-04-27 00:55:56 +00:00
ip6_gre.c Extern declarations in C files loses compile-time checking that 2014-12-25 21:32:37 +00:00
ip6_id.c Provide includes that are needed in these files, and before were read 2013-10-26 18:18:50 +00:00
ip6_input.c Implement RSS hashing/re-hashing for IPv6 ingress packets. 2015-08-29 07:14:29 +00:00
ip6_ipsec.c Remove unneded #ifdef INET6 and IPSEC. This file compiled only when 2015-05-07 12:15:45 +00:00
ip6_ipsec.h Remove flag/flags argument from the following functions: 2014-12-11 18:35:34 +00:00
ip6_mroute.c Simplify ip[6] simploop: 2015-08-08 15:58:35 +00:00
ip6_mroute.h o Make net.inet6.ip6.mif6table return special API structure, that doesn't 2015-04-06 22:12:18 +00:00
ip6_output.c Simplify ip[6] simploop: 2015-08-08 15:58:35 +00:00
ip6_var.h Implement RSS hashing/re-hashing for IPv6 ingress packets. 2015-08-29 07:14:29 +00:00
ip6protosw.h Merge 'struct ip6protosw' and 'struct protosw' into one. Now we have 2014-08-08 01:57:15 +00:00
mld6.c - Rename 'struct mld_ifinfo' into 'struct mld_ifsoftc', since it really 2015-02-19 22:37:01 +00:00
mld6.h
mld6_var.h - Rename 'struct mld_ifinfo' into 'struct mld_ifsoftc', since it really 2015-02-19 22:37:01 +00:00
nd6.c * Split allocation and table linking for lle's. 2015-08-20 12:05:17 +00:00
nd6.h * Split allocation and table linking for lle's. 2015-08-20 12:05:17 +00:00
nd6_nbr.c - Deprecate IN6_IFF_NODAD. It was used to prevent DAD on a loopback 2015-08-24 05:21:49 +00:00
nd6_rtr.c Rename rt_foreach_fib() to rt_foreach_fib_walk(). 2015-08-10 20:50:31 +00:00
pim6.h
pim6_var.h Remove more constants related to static sysctl nodes. The MAXID constants 2014-02-25 18:44:33 +00:00
raw_ip6.c Do not count security policy violation twice. 2014-12-11 19:20:13 +00:00
raw_ip6.h Migrate structs ip6stat, icmp6stat and rip6stat to PCPU counters. 2013-07-09 09:54:54 +00:00
route6.c The r48589 promised to remove implicit inclusion of if_var.h soon. Prepare 2013-10-26 17:58:36 +00:00
scope6.c Do more fine-grained lltable locking: use table runtime lock as rare 2014-11-23 15:38:06 +00:00
scope6_var.h Sync to HEAD@r274766 2014-11-21 01:22:33 +00:00
sctp6_usrreq.c Move including netinet/icmp6.h around to avoid a problem when including 2015-07-25 18:26:09 +00:00
sctp6_var.h Add support for SCTP/UDP/IPV6. 2012-11-17 20:04:04 +00:00
send.c Free mbuf in case of error. 2013-12-17 10:53:17 +00:00
send.h Use uint8_t for sockaddr sa_len. 2011-06-05 11:40:30 +00:00
tcp6_var.h Remove __P. 2012-10-22 21:49:56 +00:00
udp6_usrreq.c remove a left-over after r220463 empty #ifdef INET check. 2015-08-28 09:38:18 +00:00
udp6_var.h Add support for UDP-Lite protocol (RFC 3828) to IPv4 and IPv6 stacks. 2014-04-07 01:53:03 +00:00