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freebsd-skq/sys/net
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Stephen Hurd 5ee36c68e1 Work around lack of TX IRQs in iflib for netmap 
When poll() is called via netmap, txsync is initially called,
and if there are no available buffers to reclaim, it waits for the driver
to notify of new buffers. Since the TX IRQ is generally not used in iflib
drivers, this ends up causing a timeout.

Work around this by having the reclaim DELAY(1) if it's initially unable
to reclaim anything, then schedule the tx task, which will spin by
continuously rescheduling itself until some buffers are reclaimed. In
general, the delay is enough to allow some buffers to be reclaimed, so
spinning is minimized.

Reported by:	Johannes Lundberg <johalun0@gmail.com>
Reviewed by:	sbruno
Sponsored by:	Limelight Networks
Differential Revision:	https://reviews.freebsd.org/D15455
2018-05-16 21:03:22 +00:00
..
altq
kernel: Fix several typos and minor errors
2017-12-27 03:23:21 +00:00
bpf_buffer.c
sys: further adoption of SPDX licensing ID tags.
2017-11-20 19:43:44 +00:00
bpf_buffer.h
sys: general adoption of SPDX licensing ID tags.
2017-11-27 15:23:17 +00:00
bpf_filter.c
sys: further adoption of SPDX licensing ID tags.
2017-11-20 19:43:44 +00:00
bpf_jitter.c
sys: further adoption of SPDX licensing ID tags.
2017-11-20 19:43:44 +00:00
bpf_jitter.h
sys: further adoption of SPDX licensing ID tags.
2017-11-20 19:43:44 +00:00
bpf_zerocopy.c
sys: general adoption of SPDX licensing ID tags.
2017-11-27 15:23:17 +00:00
bpf_zerocopy.h
sys: general adoption of SPDX licensing ID tags.
2017-11-27 15:23:17 +00:00
bpf.c
Use dead_bpf_if instead of bp_null.
2018-04-24 17:42:25 +00:00
bpf.h
sys: further adoption of SPDX licensing ID tags.
2017-11-20 19:43:44 +00:00
bpfdesc.h
Make BPF global lock an SX
2018-04-10 19:42:50 +00:00
bridgestp.c
sys: general adoption of SPDX licensing ID tags.
2017-11-27 15:23:17 +00:00
bridgestp.h
sys: general adoption of SPDX licensing ID tags.
2017-11-27 15:23:17 +00:00
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
Allow to specify PCP on packets not belonging to any VLAN.
2018-03-27 15:29:32 +00:00
firewire.h
sys: general adoption of SPDX licensing ID tags.
2017-11-27 15:23:17 +00:00
ieee8023ad_lacp.c
Added missing CTLFLAG_VNET to lacp default_strict_mode
2018-01-24 10:13:14 +00:00
ieee8023ad_lacp.h
sys: general adoption of SPDX licensing ID tags.
2017-11-27 15:23:17 +00:00
ieee_oui.h
sys: general adoption of SPDX licensing ID tags.
2017-11-27 15:23:17 +00:00
if_arp.h
Remove support for the Arcnet protocol.
2018-04-13 21:18:04 +00:00
if_bridge.c
Allow different bridge types to coexist
2018-05-11 05:00:40 +00:00
if_bridgevar.h
Allow different bridge types to coexist
2018-05-11 05:00:40 +00:00
if_clone.c
iflib(9): Add support for cloning pseudo interfaces
2018-05-11 20:08:28 +00:00
if_clone.h
iflib(9): Add support for cloning pseudo interfaces
2018-05-11 20:08:28 +00:00
if_dead.c
sys: general adoption of SPDX licensing ID tags.
2017-11-27 15:23:17 +00:00
if_debug.c
sys: general adoption of SPDX licensing ID tags.
2017-11-27 15:23:17 +00:00
if_disc.c
sys: further adoption of SPDX licensing ID tags.
2017-11-20 19:43:44 +00:00
if_dl.h
sys: further adoption of SPDX licensing ID tags.
2017-11-20 19:43:44 +00:00
if_edsc.c
sys: further adoption of SPDX licensing ID tags.
2017-11-20 19:43:44 +00:00
if_enc.c
netpfil: Introduce PFIL_FWD flag
2018-03-23 16:56:44 +00:00
if_enc.h
sys: general adoption of SPDX licensing ID tags.
2017-11-27 15:23:17 +00:00
if_epair.c
sys: general adoption of SPDX licensing ID tags.
2017-11-27 15:23:17 +00:00
if_ethersubr.c
Allow different bridge types to coexist
2018-05-11 05:00:40 +00:00
if_fwsubr.c
Improve copy-and-pasted versions of SIOCGIFADDR.
2018-03-27 20:51:49 +00:00
if_gif.c
Use an accessor function to access ifr_data.
2018-03-30 18:50:13 +00:00
if_gif.h
sys: further adoption of SPDX licensing ID tags.
2017-11-20 19:43:44 +00:00
if_gre.c
Use an accessor function to access ifr_data.
2018-03-30 18:50:13 +00:00
if_gre.h
sys: general adoption of SPDX licensing ID tags.
2017-11-27 15:23:17 +00:00
if_ipsec.c
Apply the change from r272770 to if_ipsec(4) interface.
2018-05-11 16:50:25 +00:00
if_ipsec.h
Merge projects/ipsec into head/.
2017-02-06 08:49:57 +00:00
if_lagg.c
Replace rmlock with epoch in lagg
2018-05-14 20:06:49 +00:00
if_lagg.h
Replace rmlock with epoch in lagg
2018-05-14 20:06:49 +00:00
if_llatbl.c
sys: general adoption of SPDX licensing ID tags.
2017-11-27 15:23:17 +00:00
if_llatbl.h
Fix outgoing TCP/UDP packet drop on arp/ndp entry expiration.
2018-03-17 17:05:48 +00:00
if_llc.h
sys: further adoption of SPDX licensing ID tags.
2017-11-20 19:43:44 +00:00
if_loop.c
Add IFCAP_LINKSTATE support to if_loop(4).
2018-05-09 10:50:51 +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
Finish removing FDDI and tokenring media support.
2018-04-23 21:10:33 +00:00
if_media.h
Finish removing FDDI and tokenring media support.
2018-04-23 21:10:33 +00:00
if_mib.c
…
if_mib.h
…
if_pflog.h
sys: general adoption of SPDX licensing ID tags.
2017-11-27 15:23:17 +00:00
if_pfsync.h
sys: general adoption of SPDX licensing ID tags.
2017-11-27 15:23:17 +00:00
if_sppp.h
sys/net*: minor spelling fixes.
2016-05-03 18:05:43 +00:00
if_spppfr.c
…
if_spppsubr.c
Use an accessor function to access ifr_data.
2018-03-30 18:50:13 +00:00
if_stf.c
sys: further adoption of SPDX licensing ID tags.
2017-11-20 19:43:44 +00:00
if_tap.c
Move most of the contents of opt_compat.h to opt_global.h.
2018-04-06 17:35:35 +00:00
if_tap.h
sys: general adoption of SPDX licensing ID tags.
2017-11-27 15:23:17 +00:00
if_tapvar.h
sys: general adoption of SPDX licensing ID tags.
2017-11-27 15:23:17 +00:00
if_tun.c
Disallow TUN and TAP character device IOCTLs to modify the network device
2017-11-29 09:40:11 +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
sys: further adoption of SPDX licensing ID tags.
2017-11-20 19:43:44 +00:00
if_var.h
Allow different bridge types to coexist
2018-05-11 05:00:40 +00:00
if_vlan_var.h
Allow to specify PCP on packets not belonging to any VLAN.
2018-03-27 15:29:32 +00:00
if_vlan.c
Add network device event for priority code point, PCP, changes.
2018-04-26 08:58:27 +00:00
if_vxlan.c
Add macro for vxlan list mutex lock and unlock
2017-12-30 19:49:40 +00:00
if_vxlan.h
Add support for IPv6 scoped addresses to vxlan
2017-12-30 04:03:53 +00:00
if.c
Allow different bridge types to coexist
2018-05-11 05:00:40 +00:00
if.h
iflib(9): Add support for cloning pseudo interfaces
2018-05-11 20:08:28 +00:00
ifdi_if.m
iflib(9): Add support for cloning pseudo interfaces
2018-05-11 20:08:28 +00:00
iflib_clone.c
iflib(9): Add support for cloning pseudo interfaces
2018-05-11 20:08:28 +00:00
iflib_private.h
Work around lack of TX IRQs in iflib for netmap
2018-05-16 21:03:22 +00:00
iflib.c
Work around lack of TX IRQs in iflib for netmap
2018-05-16 21:03:22 +00:00
iflib.h
iflib(9): Add support for cloning pseudo interfaces
2018-05-11 20:08:28 +00:00
ifq.h
sys: further adoption of SPDX licensing ID tags.
2017-11-20 19:43:44 +00:00
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
sys: general adoption of SPDX licensing ID tags.
2017-11-27 15:23:17 +00:00
netisr.c
sys: general adoption of SPDX licensing ID tags.
2017-11-27 15:23:17 +00:00
netisr.h
sys: general adoption of SPDX licensing ID tags.
2017-11-27 15:23:17 +00:00
netmap_legacy.h
netmap: align codebase to the current upstream (commit id 3fb001303718146)
2018-04-12 07:20:50 +00:00
netmap_user.h
netmap: align codebase to the current upstream (commit id 3fb001303718146)
2018-04-12 07:20:50 +00:00
netmap_virt.h
netmap: align codebase to the current upstream (commit id 3fb001303718146)
2018-04-12 07:20:50 +00:00
netmap.h
netmap: align codebase to the current upstream (commit id 3fb001303718146)
2018-04-12 07:20:50 +00:00
paravirt.h
…
pfil.c
netpfil: Introduce PFIL_FWD flag
2018-03-23 16:56:44 +00:00
pfil.h
netpfil: Introduce PFIL_FWD flag
2018-03-23 16:56:44 +00:00
pfkeyv2.h
sys: further adoption of SPDX licensing ID tags.
2017-11-20 19:43:44 +00:00
pfvar.h
pf: Improve ioctl validation for DIOCRGETTABLES, DIOCRGETTSTATS, DIOCRCLRTSTATS and DIOCRSETTFLAGS
2018-04-06 15:54:30 +00:00
ppp_defs.h
…
radix_mpath.c
sys: further adoption of SPDX licensing ID tags.
2017-11-20 19:43:44 +00:00
radix_mpath.h
sys: further adoption of SPDX licensing ID tags.
2017-11-20 19:43:44 +00:00
radix.c
sys: further adoption of SPDX licensing ID tags.
2017-11-20 19:43:44 +00:00
radix.h
sys: further adoption of SPDX licensing ID tags.
2017-11-20 19:43:44 +00:00
raw_cb.c
sys: further adoption of SPDX licensing ID tags.
2017-11-20 19:43:44 +00:00
raw_cb.h
sys: further adoption of SPDX licensing ID tags.
2017-11-20 19:43:44 +00:00
raw_usrreq.c
sys: further adoption of SPDX licensing ID tags.
2017-11-20 19:43:44 +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
Increment the route table gen count after a modify
2018-01-23 03:15:44 +00:00
route.h
Reduce code duplication for inpcb route caching
2018-01-23 03:15:39 +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
The ifnet pointer (ifp) in rt_newaddrmsg can be valid without ifp->if_addr being set if
2018-05-06 20:32:47 +00:00
sff8436.h
…
sff8472.h
ifconfig(8): Display extended compliance code string for SFP transceivers
2017-12-05 18:42:07 +00:00
slcompress.c
sys: further adoption of SPDX licensing ID tags.
2017-11-20 19:43:44 +00:00
slcompress.h
sys: further adoption of SPDX licensing ID tags.
2017-11-20 19:43:44 +00:00
toeplitz.c
…
toeplitz.h
…
vnet.c
sys: general adoption of SPDX licensing ID tags.
2017-11-27 15:23:17 +00:00
vnet.h
sys: general adoption of SPDX licensing ID tags.
2017-11-27 15:23:17 +00:00