Date: Sat, 30 May 2009 15:14:44 +0000 (UTC) From: Attilio Rao <attilio@FreeBSD.org> To: cvs-src-old@freebsd.org Subject: cvs commit: src/sys/arm/xscale/ixp425 if_npe.c ixp425_qmgr.c ixp425_qmgr.h src/sys/dev/bge if_bge.c src/sys/dev/dc if_dc.c src/sys/dev/e1000 if_em.c src/sys/dev/firewire if_fwe.c if_fwip.c src/sys/dev/fxp if_fxp.c src/sys/dev/ixgb if_ixgb.c ... Message-ID: <200905301515.n4UFFWEE062309@repoman.freebsd.org>
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attilio 2009-05-30 15:14:44 UTC
FreeBSD src repository
Modified files:
sys/arm/xscale/ixp425 if_npe.c ixp425_qmgr.c ixp425_qmgr.h
sys/dev/bge if_bge.c
sys/dev/dc if_dc.c
sys/dev/e1000 if_em.c
sys/dev/firewire if_fwe.c if_fwip.c
sys/dev/fxp if_fxp.c
sys/dev/ixgb if_ixgb.c
sys/dev/lmc if_lmc.c
sys/dev/mge if_mge.c
sys/dev/nfe if_nfe.c
sys/dev/re if_re.c
sys/dev/sf if_sf.c
sys/dev/sis if_sis.c
sys/dev/smc if_smc.c
sys/dev/ste if_ste.c
sys/dev/stge if_stge.c
sys/dev/tsec if_tsec.c
sys/dev/vge if_vge.c
sys/dev/vr if_vr.c
sys/dev/xl if_xl.c
sys/net if.h if_var.h
sys/pci if_rl.c
sys/sys param.h
Log:
SVN rev 193096 on 2009-05-30 15:14:44Z by attilio
When user_frac in the polling subsystem is low it is going to busy the
CPU for too long period than necessary. Additively, interfaces are kept
polled (in the tick) even if no more packets are available.
In order to avoid such situations a new generic mechanism can be
implemented in proactive way, keeping track of the time spent on any
packet and fragmenting the time for any tick, stopping the processing
as soon as possible.
In order to implement such mechanism, the polling handler needs to
change, returning the number of packets processed.
While the intended logic is not part of this patch, the polling KPI is
broken by this commit, adding an int return value and the new flag
IFCAP_POLLING_NOCOUNT (which will signal that the return value is
meaningless for the installed handler and checking should be skipped).
Bump __FreeBSD_version in order to signal such situation.
Reviewed by: emaste
Sponsored by: Sandvine Incorporated
Revision Changes Path
1.16 +10 -5 src/sys/arm/xscale/ixp425/if_npe.c
1.6 +1 -1 src/sys/arm/xscale/ixp425/ixp425_qmgr.c
1.2 +3 -1 src/sys/arm/xscale/ixp425/ixp425_qmgr.h
1.223 +13 -9 src/sys/dev/bge/if_bge.c
1.200 +14 -8 src/sys/dev/dc/if_dc.c
1.16 +22 -11 src/sys/dev/e1000/if_em.c
1.47 +5 -2 src/sys/dev/firewire/if_fwe.c
1.19 +6 -3 src/sys/dev/firewire/if_fwip.c
1.287 +14 -7 src/sys/dev/fxp/if_fxp.c
1.24 +14 -8 src/sys/dev/ixgb/if_ixgb.c
1.39 +2 -1 src/sys/dev/lmc/if_lmc.c
1.5 +10 -6 src/sys/dev/mge/if_mge.c
1.33 +23 -13 src/sys/dev/nfe/if_nfe.c
1.158 +19 -12 src/sys/dev/re/if_re.c
1.100 +13 -7 src/sys/dev/sf/if_sf.c
1.8 +9 -5 src/sys/dev/sis/if_sis.c
1.7 +2 -0 src/sys/dev/smc/if_smc.c
1.2 +13 -8 src/sys/dev/ste/if_ste.c
1.13 +13 -7 src/sys/dev/stge/if_stge.c
1.12 +14 -6 src/sys/dev/tsec/if_tsec.c
1.36 +7 -5 src/sys/dev/vge/if_vge.c
1.135 +17 -9 src/sys/dev/vr/if_vr.c
1.6 +16 -9 src/sys/dev/xl/if_xl.c
1.119 +1 -0 src/sys/net/if.h
1.141 +1 -1 src/sys/net/if_var.h
1.188 +17 -10 src/sys/pci/if_rl.c
1.415 +1 -1 src/sys/sys/param.h
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