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freebsd-dev/sys/net
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Konstantin Belousov 3cf8254f1e Add a place for a driver to report rx timestamps in nanoseconds from 
boot for the received packets.

The rcv_tstmp field overlaps the place of Ln header length indicators,
not used by received packets.  The basic pkthdr rearrangement change
in sys/mbuf.h was provided by gallatin.

There are two accompanying M_ flags: M_TSTMP means that there is the
timestamp (and it was generated by hardware).

Another flag M_TSTMP_HPREC indicates that the timestamp is
high-precision.  Practically M_TSTMP_HPREC means that hardware
provided additional precision comparing with the stamps when the flag
is not set.  E.g., for ConnectX all packets are stamped by hardware
when PCIe transaction to write out the completion descriptor is
performed, but PTP packet are stamped on port.  For Intel cards, when
PTP assist is enabled, only PTP packets are stamped in the limited
number of registers, so if Intel cards ever start support this
mechanism, they would always set M_TSTMP | M_TSTMP_HPREC if hardware
timestamp is present for the given packet.

Add IFCAP_HWRXTSTMP interface capability to indicate the support for
hardware rx timestamping, and ifconfig(8) command to toggle it.

Based on the patch by:	gallatin
Reviewed by:	gallatin (previous version), hselasky
Sponsored by:	Mellanox Technologies
MFC after:	2 weeks (? mbuf KBI issue)
X-Differential revision:	https://reviews.freebsd.org/D12638
2017-11-07 09:29:14 +00:00
..
altq Remove register keyword from sys/ and ANSIfy prototypes 2017-05-17 00:34:34 +00:00
bpf_buffer.c Renumber copyright clause 4 2017-02-28 23:42:47 +00:00
bpf_buffer.h
bpf_filter.c Remove register keyword from sys/ and ANSIfy prototypes 2017-05-17 00:34:34 +00:00
bpf_jitter.c Use kmem_malloc() instead of malloc(9) for the native amd64 filter. 2017-04-17 22:02:09 +00:00
bpf_jitter.h Use kmem_malloc() instead of malloc(9) for the native amd64 filter. 2017-04-17 22:02:09 +00:00
bpf_zerocopy.c In r288122, we changed vm_page_unwire() so that it returns a Boolean 2017-09-20 04:59:52 +00:00
bpf_zerocopy.h
bpf.c bpf: Fix incorrect cleanup 2017-08-16 19:40:07 +00:00
bpf.h Renumber copyright clause 4 2017-02-28 23:42:47 +00:00
bpfdesc.h Renumber copyright clause 4 2017-02-28 23:42:47 +00:00
bridgestp.c sys/net*: minor spelling fixes. 2016-05-03 18:05:43 +00:00
bridgestp.h
dlt.h MFV r313759: license change for a few headers (4 clause BSD to 3 clause BSD). 2017-02-15 07:22:47 +00:00
ethernet.h ethernet: Add ethernet interface attached event and devctl notification. 2017-07-24 03:32:10 +00:00
fddi.h
firewire.h
ieee8023ad_lacp.c Make LACP based lagg work with interfaces (like 100Gbps and 25Gbps) that 2017-09-06 14:36:35 +00:00
ieee8023ad_lacp.h Implement kernel support for hardware rate limited sockets. 2017-01-18 13:31:17 +00:00
ieee_oui.h
if_arc.h Renumber copyright clause 4 2017-02-28 23:42:47 +00:00
if_arcsubr.c Remove the 4.3BSD compatible macro m_copy(), use m_copym() instead. 2016-09-15 07:41:48 +00:00
if_arp.h Renumber copyright clause 4 2017-02-28 23:42:47 +00:00
if_bridge.c bridge: Set module version 2017-09-21 14:14:01 +00:00
if_bridgevar.h bridge: Release the bridge lock when calling bridge_set_ifcap() 2017-01-25 21:25:26 +00:00
if_clone.c ifnet(9): split ifc_alloc_unit() (should simplify code flow) 2017-10-16 21:21:31 +00:00
if_clone.h Renumber copyright clause 4 2017-02-28 23:42:47 +00:00
if_dead.c Implement kernel support for hardware rate limited sockets. 2017-01-18 13:31:17 +00:00
if_debug.c Add more fields to if_debug.c for ddb(4) 'show ifnet'; resort 2016-06-22 12:53:10 +00:00
if_disc.c Renumber copyright clause 4 2017-02-28 23:42:47 +00:00
if_dl.h Renumber copyright clause 4 2017-02-28 23:42:47 +00:00
if_edsc.c Renumber copyright clause 4 2017-02-28 23:42:47 +00:00
if_enc.c Add to if_enc(4) ability to capture packets via BPF after pfil processing. 2017-08-09 12:24:07 +00:00
if_enc.h Add inpcb pointer to struct ipsec_ctx_data and pass it to the pfil hook 2017-07-31 11:04:35 +00:00
if_epair.c epair: Fix panic on unload 2017-11-01 14:27:26 +00:00
if_ethersubr.c ethernet: Add ethernet interface attached event and devctl notification. 2017-07-24 03:32:10 +00:00
if_fddisubr.c sys: Replace zero with NULL for pointers. 2017-02-22 02:35:59 +00:00
if_fwsubr.c Renumber copyright clause 4 2017-02-28 23:42:47 +00:00
if_gif.c Extract out the various local definitions of ETHER_IS_BROADCAST() and 2016-08-07 03:48:33 +00:00
if_gif.h
if_gre.c Do not adjust interface MTU automatically. Leave this task to the system 2017-04-11 08:56:18 +00:00
if_gre.h Do not adjust interface MTU automatically. Leave this task to the system 2017-04-11 08:56:18 +00:00
if_ipsec.c Introduce the concept of IPsec security policies scope. 2017-03-07 00:13:53 +00:00
if_ipsec.h Merge projects/ipsec into head/. 2017-02-06 08:49:57 +00:00
if_iso88025subr.c sys: Replace zero with NULL for pointers. 2017-02-22 02:35:59 +00:00
if_lagg.c Don't hold the RM lock during lagg_proto_addport() to avoid an LOR. 2017-07-25 14:41:50 +00:00
if_lagg.h Remove some code, dead from the day one. 2017-05-25 23:19:09 +00:00
if_llatbl.c Remove register keyword from sys/ and ANSIfy prototypes 2017-05-17 00:34:34 +00:00
if_llatbl.h Make LLTABLE list lock private for if_llatbl.c 2016-10-11 17:41:13 +00:00
if_llc.h Renumber copyright clause 4 2017-02-28 23:42:47 +00:00
if_loop.c Renumber copyright clause 4 2017-02-28 23:42:47 +00:00
if_me.c Do not adjust interface MTU automatically. Leave this task to the system 2017-04-11 08:56:18 +00:00
if_media.c Remove register keyword from sys/ and ANSIfy prototypes 2017-05-17 00:34:34 +00:00
if_media.h Add several new media types to if_media.h 2017-05-10 18:33:40 +00:00
if_mib.c These files were getting sys/malloc.h and vm/uma.h with header pollution 2016-02-01 17:41:21 +00:00
if_mib.h
if_pflog.h
if_pfsync.h
if_sppp.h sys/net*: minor spelling fixes. 2016-05-03 18:05:43 +00:00
if_spppfr.c
if_spppsubr.c sys/net*: minor spelling fixes. 2016-05-03 18:05:43 +00:00
if_stf.c Remove the unused mutex since r273220. 2017-07-28 04:41:57 +00:00
if_tap.c if_tap: correct typo in sysctl description (Enably) 2015-10-21 19:56:16 +00:00
if_tap.h
if_tapvar.h
if_tun.c Allow writing IP packets of length TUNMRU no matter if TUNSIFHEAD is set 2016-05-19 13:52:12 +00:00
if_tun.h Allow an MTU of 65535 bytes to be set via TUN[SG]IFINFO. This requires 2016-05-24 11:47:14 +00:00
if_types.h Renumber copyright clause 4 2017-02-28 23:42:47 +00:00
if_var.h Add support for generic backpressure indicator for ratelimited 2017-09-06 13:56:18 +00:00
if_vlan_var.h Add support to priority code point (PCP) that is an 3-bit field 2016-06-06 09:51:58 +00:00
if_vlan.c Allow vlan interfaces to rx through netmap(4). 2017-09-13 00:25:09 +00:00
if_vxlan.c net: Use M_HASHTYPE_OPAQUE_HASH if the mbuf flowid has hash properties 2016-06-07 04:51:50 +00:00
if_vxlan.h
if.c Allow a process to assign an IP address to local ppp interface 2017-11-05 14:41:48 +00:00
if.h Add a place for a driver to report rx timestamps in nanoseconds from 2017-11-07 09:29:14 +00:00
ifdi_if.m IFLIB updates 2017-03-13 22:53:06 +00:00
iflib.c Fix NOINET/NOINET6 build during compilation of iflib. 2017-11-06 19:54:25 +00:00
iflib.h Fix "taskqgroup_attach: setaffinity failed: 3" with iflib drivers 2017-10-05 14:43:30 +00:00
ifq.h Renumber copyright clause 4 2017-02-28 23:42:47 +00:00
iso88025.h
mp_ring.c Have ifmp_ring_enqueue() abdicate instead of switch to a consumer 2017-09-23 16:46:30 +00:00
mp_ring.h Import the 'iflib' API library for network drivers. From the author: 2016-05-18 04:35:58 +00:00
mppc.h ng_mppc(4): Bring netgraph(3) MPPC compression support. 2016-06-07 15:07:00 +00:00
mppcc.c ng_mppc(4):: basic readability cleanups. 2016-07-09 02:33:45 +00:00
mppcd.c ng_mppc(4):: basic readability cleanups. 2016-07-09 02:33:45 +00:00
netisr_internal.h
netisr.c Bring back r313037, with fixes for mips: 2017-02-19 02:03:09 +00:00
netisr.h Remove the NATM framework including the en(4), fatm(4), hatm(4), and 2017-04-24 21:21:49 +00:00
netmap_user.h Update netmap_user.h with the current version of netmap. This file should 2017-07-21 03:42:09 +00:00
netmap_virt.h Various fixes for ptnet/ptnetmap (passthrough of netmap ports). In detail: 2016-10-27 09:46:22 +00:00
netmap.h Various fixes for ptnet/ptnetmap (passthrough of netmap ports). In detail: 2016-10-27 09:46:22 +00:00
paravirt.h
pfil.c Remove "IPFW static rules" rmlock. 2017-04-03 13:35:04 +00:00
pfil.h Remove "IPFW static rules" rmlock. 2017-04-03 13:35:04 +00:00
pfkeyv2.h Introduce the concept of IPsec security policies scope. 2017-03-07 00:13:53 +00:00
pfvar.h pf: Fix possible shutdown race 2017-03-22 21:18:18 +00:00
ppp_defs.h
radix_mpath.c radix_mpath: Don't derefence a NULL pointer in for loop iteration 2016-04-26 20:27:17 +00:00
radix_mpath.h MFP r287070,r287073: split radix implementation and route table structure. 2016-01-25 06:33:15 +00:00
radix.c Renumber copyright clause 4 2017-02-28 23:42:47 +00:00
radix.h Renumber copyright clause 4 2017-02-28 23:42:47 +00:00
raw_cb.c Renumber copyright clause 4 2017-02-28 23:42:47 +00:00
raw_cb.h Renumber copyright clause 4 2017-02-28 23:42:47 +00:00
raw_usrreq.c Renumber copyright clause 4 2017-02-28 23:42:47 +00:00
rndis.h rndis: Add LINK_SPEED_CHANGE status 2017-07-24 03:59:50 +00:00
route_var.h Renumber copyright clause 4 2017-02-28 23:42:47 +00:00
route.c After inpcb route caching was put back in place there is no need for 2017-07-27 13:03:36 +00:00
route.h Garbage collect RT_NORTREF, which is no longer in use after FLOWTABLE removal. 2017-08-24 23:08:12 +00:00
rss_config.c rss: Remove never defined UDP_IPV4_EX 2017-10-11 06:08:01 +00:00
rss_config.h rss: Remove never defined UDP_IPV4_EX 2017-10-11 06:08:01 +00:00
rtsock.c Fix typo in comment. 2017-04-08 04:37:01 +00:00
sff8436.h Add SFF-8024 Extended Specification Compliance 2015-12-28 09:26:07 +00:00
sff8472.h sys/net*: minor spelling fixes. 2016-05-03 18:05:43 +00:00
slcompress.c Remove register keyword from sys/ and ANSIfy prototypes 2017-05-17 00:34:34 +00:00
slcompress.h Renumber copyright clause 4 2017-02-28 23:42:47 +00:00
toeplitz.c
toeplitz.h
vnet.c With r181803 on 2008-08-17 23:27:27Z the first VIMAGE commit went into 2017-10-20 21:40:59 +00:00
vnet.h Get closer to a VIMAGE network stack teardown from top to bottom rather 2016-06-21 13:48:49 +00:00