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freebsd-nq/sys/net
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Alexander V. Chernikov 656442a718 Embed dst sockaddr into rtentry and remove rte packet counter 
Currently each rtentry has dst&gateway allocated separately from another zone,
 bloating cache accesses.

Current 'struct rtentry' has 12 "mandatory" radix pointers in the beginning,
 leaving 4 usable pointers/32 bytes in the first 2 cache lines (amd64).
Fields needed for the datapath are destination sockaddr and rt_nhop.

So far it doesn't look like there is other routable addressing protocol other
 than IPv4/IPv6/MPLS, which uses keys longer than 20 bytes.
With that in mind, embed dst into struct rtentry, making the first 24 bytes
 of rtentry within 128 bytes. That is enough to make IPv6 address within first
 128 bytes.

It is still pretty easy to add code for supporting separately-allocated dst,
 however it doesn't make a lot of sense in having such code without a use case.

As rS359823 moved the gateway to the nexthop structure, the dst embedding change
 removes the need for any additional allocations done by rt_setgate().

Lastly, as a part of cleanup, remove counter(9) allocation code, as this field
 is not used in packet processing anymore.

Reviewed by:	ae
Differential Revision:	https://reviews.freebsd.org/D24669
2020-05-08 21:06:10 +00:00
..
altq Use a void * argument to callout handlers instead of timeout_t casts. 2019-12-05 18:47:29 +00:00
route Embed dst sockaddr into rtentry and remove rte packet counter 2020-05-08 21:06:10 +00:00
bpf_buffer.c Add an external mbuf buffer type that holds multiple unmapped pages. 2019-06-29 00:48:33 +00:00
bpf_buffer.h
bpf_filter.c
bpf_jitter.c Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (17 of many) 2020-02-26 14:26:36 +00:00
bpf_jitter.h Make UMA and malloc(9) return non-executable memory in most cases. 2018-06-13 17:04:41 +00:00
bpf_zerocopy.c Change synchonization rules for vm_page reference counting. 2019-09-09 21:32:42 +00:00
bpf_zerocopy.h
bpf.c Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (17 of many) 2020-02-26 14:26:36 +00:00
bpf.h Extract eventfilter declarations to sys/_eventfilter.h 2019-05-20 00:38:23 +00:00
bpfdesc.h Rework locking in BPF code to remove rwlock from fast path. 2019-05-13 13:45:28 +00:00
bridgestp.c bridge: Fix panic if the STP root is removed 2019-03-15 11:21:20 +00:00
bridgestp.h
debugnet_inet.c Implement NetGDB(4) 2019-10-17 21:33:01 +00:00
debugnet_int.h Implement NetGDB(4) 2019-10-17 21:33:01 +00:00
debugnet.c Convert debugnet to the new routing KPI. 2020-04-26 18:42:38 +00:00
debugnet.h Implement NetGDB(4) 2019-10-17 21:33:01 +00:00
dlt.h MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
ethernet.h typo: stray spaces. 2020-02-07 15:16:04 +00:00
firewire.h
ieee8023ad_lacp.c make lacp's use_numa hashing aware of send tags 2020-03-09 13:44:51 +00:00
ieee8023ad_lacp.h make lacp's use_numa hashing aware of send tags 2020-03-09 13:44:51 +00:00
ieee_oui.h Fix a typo in r349969 2019-07-14 03:49:48 +00:00
if_arp.h Improve ARP logging. 2019-03-09 01:12:59 +00:00
if_bridge.c bridge: epoch-ification 2020-04-26 16:22:35 +00:00
if_bridgevar.h bridge: Move locking defines into if_bridge.c 2020-02-26 08:47:18 +00:00
if_clone.c epair: Do not abuse params to register the second interface 2020-01-28 22:44:24 +00:00
if_clone.h epair: Do not abuse params to register the second interface 2020-01-28 22:44:24 +00:00
if_dead.c This adds the third step in getting BBR into the tree. BBR and 2019-08-01 14:17:31 +00:00
if_debug.c
if_disc.c Use the new VNET_DEFINE_STATIC macro when we are defining static VNET 2018-07-24 16:35:52 +00:00
if_dl.h
if_edsc.c if_edsc: generate an arbitrary MAC address 2020-03-02 02:45:57 +00:00
if_enc.c Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (17 of many) 2020-02-26 14:26:36 +00:00
if_enc.h
if_epair.c Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (17 of many) 2020-02-26 14:26:36 +00:00
if_ethersubr.c ethersubr: Make the mac address generation more robust 2020-04-18 07:50:30 +00:00
if_fwsubr.c
if_gif.c Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (17 of many) 2020-02-26 14:26:36 +00:00
if_gif.h gif_transmit() must always be called in the network epoch. 2020-01-15 06:18:32 +00:00
if_gre.c Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (17 of many) 2020-02-26 14:26:36 +00:00
if_gre.h Add GRE-in-UDP encapsulation support as defined in RFC8086. 2019-04-24 09:05:45 +00:00
if_ipsec.c Mechanically substitute assertion of in_epoch(net_epoch_preempt) to 2020-01-15 05:45:27 +00:00
if_ipsec.h
if_lagg.c lagg: stop double-counting output errors and counting drops as errors 2020-04-13 23:06:56 +00:00
if_lagg.h lagg: Further cleanup of the rr_limit option. 2020-01-09 14:58:41 +00:00
if_llatbl.c Implement optional table entry limits for if_llatbl. 2020-03-04 17:17:02 +00:00
if_llatbl.h Implement optional table entry limits for if_llatbl. 2020-03-04 17:17:02 +00:00
if_llc.h
if_loop.c Use the new VNET_DEFINE_STATIC macro when we are defining static VNET 2018-07-24 16:35:52 +00:00
if_me.c remove extraneous double ;s in sys/ 2020-03-30 16:04:25 +00:00
if_media.c if_media.c: staticize and constify ifmedia description structures used under IFMEDIA_DEBUG. 2020-02-11 17:45:01 +00:00
if_media.h if_media.h: Add 50G KR4 ethernet media type. 2020-02-11 18:03:45 +00:00
if_mib.c Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (17 of many) 2020-02-26 14:26:36 +00:00
if_mib.h
if_pflog.h
if_pfsync.h
if_sppp.h
if_spppfr.c
if_spppsubr.c Don't use if_maddr_rlock() in sppp(4), use epoch(9) directly instead. 2019-10-10 23:54:37 +00:00
if_stf.c Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (17 of many) 2020-02-26 14:26:36 +00:00
if_tap.h tap: add support for virtio-net offloads 2019-10-18 21:53:27 +00:00
if_tun.h if_tuntap(4): Add TUNGIFNAME 2019-07-25 22:23:34 +00:00
if_tuntap.c Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (17 of many) 2020-02-26 14:26:36 +00:00
if_types.h
if_var.h Add nhop to the ifa_rtrequest() callback. 2020-04-29 19:28:56 +00:00
if_vlan_var.h Extract eventfilter declarations to sys/_eventfilter.h 2019-05-20 00:38:23 +00:00
if_vlan.c vlan: Fix panic when vnet jail with a vlan interface is destroyed 2020-01-31 22:54:44 +00:00
if_vxlan.c Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (17 of many) 2020-02-26 14:26:36 +00:00
if_vxlan.h
if.c Expose ifr_buffer_get_(buffer|length) outside if.c. 2020-03-03 18:05:11 +00:00
if.h Although most of the NIC drivers are epoch ready, due to peer pressure 2020-02-24 21:07:30 +00:00
ifdi_if.m iflib: Stop interface before (un)registering VLAN 2020-04-27 22:02:44 +00:00
iflib_clone.c - Remove the unused ifc_link_irq and ifc_mtx_name members of struct iflib_ctx. 2019-05-06 20:56:41 +00:00
iflib_private.h - Replace unused and only ever written to members of public iflib(9) 2019-06-15 11:07:41 +00:00
iflib.c Increase the iflib txq callout mutex name length to 32 bytes. 2020-04-30 15:39:04 +00:00
iflib.h iflib: Stop interface before (un)registering VLAN 2020-04-27 22:02:44 +00:00
ifq.h
mp_ring.c - Merge r338254 from cxgbe(4): 2019-05-09 11:34:46 +00:00
mp_ring.h mp_ring: avoid items offset difference between iflib and mp_ring 2019-01-03 23:06:05 +00:00
mppc.h
mppcc.c
mppcd.c
netisr_internal.h
netisr.c Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (17 of many) 2020-02-26 14:26:36 +00:00
netisr.h
netmap_legacy.h add valectl to the system commands 2019-10-31 21:01:34 +00:00
netmap_user.h netmap: check if we already ran mmap before we attempt it 2019-11-19 21:29:49 +00:00
netmap_virt.h netmap: disable passthrough with no hypervisor support 2020-01-13 21:47:23 +00:00
netmap.h netmap: import changes from upstream (SHA 137f537eae513) 2019-09-01 14:47:41 +00:00
paravirt.h
pfil.c Since now drivers that support pfil run their interrupts in the network 2020-01-23 01:49:22 +00:00
pfil.h Most Ethernet drivers that potentially can run a pfil(9) hook with 2019-03-10 17:20:09 +00:00
pfkeyv2.h
pfvar.h pf :Use counter(9) in pf tables. 2019-03-15 11:08:44 +00:00
ppp_defs.h
radix_mpath.c Convert more rtentry field accesses into nhop fields accesses. 2020-04-29 21:54:09 +00:00
radix_mpath.h Convert rtalloc_mpath_fib() users to the new KPI. 2020-04-28 08:06:56 +00:00
radix.c Switch RIB and RADIX_NODE_HEAD lock from rwlock(9) to rmlock(9). 2018-06-16 08:26:23 +00:00
radix.h Fix typo. 2018-06-16 19:21:09 +00:00
raw_cb.c Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (17 of many) 2020-02-26 14:26:36 +00:00
raw_cb.h
raw_usrreq.c
rndis.h
route.c Embed dst sockaddr into rtentry and remove rte packet counter 2020-05-08 21:06:10 +00:00
route.h Embed dst sockaddr into rtentry and remove rte packet counter 2020-05-08 21:06:10 +00:00
rss_config.c Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (17 of many) 2020-02-26 14:26:36 +00:00
rss_config.h
rtsock.c Embed dst sockaddr into rtentry and remove rte packet counter 2020-05-08 21:06:10 +00:00
sff8436.h
sff8472.h net: Update SFF-8024 definitions and strings with values from rev 4.6 2019-08-17 00:10:56 +00:00
slcompress.c
slcompress.h
toeplitz.c
toeplitz.h
vnet.c Partially revert VNET change and expand VNET structure. 2020-02-17 11:08:50 +00:00
vnet.h Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (17 of many) 2020-02-26 14:26:36 +00:00