cvs commit: src/sys/dev/em if_em.c if_em.h

Gleb Smirnoff glebius at
Thu Jan 12 14:01:19 PST 2006

On Thu, Jan 12, 2006 at 06:47:00PM +0100, Harald Schmalzbauer wrote:
H> Am Mittwoch, 11. Januar 2006 01:30 CEST schrieb Scott Long:
H> > scottl      2006-01-11 00:30:25 UTC
H> >
H> >   FreeBSD src repository
H> >
H> >   Modified files:
H> >     sys/dev/em           if_em.c if_em.h
H> >   Log:
H> >   Significant performance improvements for the if_em driver:
H> >
H> >   - Only update the rx ring consumer pointer after running through the
H> > rx loop, not with each iteration through the loop.
H> >   - If possible, use a fast interupt handler instead of an ithread
H> > handler.  Use the interrupt handler to check and squelch the interrupt,
H> > then schedule a taskqueue to do the actual work.  This has three
H> > benefits:
H> Thank you very much for your work! Since I'm using many em cards and can't 
H> get higher tranfer rates compared to fxp (but I wanted to double it so I 
H> spent some money to replace F-Eth equipment with GbE) I'd like to apply 
H> your work to RELENG_6. I made the attached diff, but compiler stops here:
H> /usr/obj/GUNE/usr/src/make.i386/make -V CFILES -V SYSTEM_CFILES -V 
H> GEN_CFILES |  MKDEP_CPP="cc -E" CC="cc" xargs mkdep -a -f .newdep -O2 
H> -pipe -fno-strict-aliasing -march=pentium3 -Wall -Wredundant-decls 
H> -Wnested-externs -Wstrict-prototypes  -Wmissing-prototypes -Wpointer-arith 
H> -Winline -Wcast-qual  -fformat-extensions -std=c99 -g -nostdinc -I-  -I. 
H> -I/usr/src/sys -I/usr/src/sys/contrib/altq -I/usr/src/sys/contrib/ipfilter 
H> -I/usr/src/sys/contrib/pf -I/usr/src/sys/contrib/dev/ath 
H> -I/usr/src/sys/contrib/dev/ath/freebsd -I/usr/src/sys/contrib/ngatm 
H> -I/usr/src/sys/dev/twa -D_KERNEL -DHAVE_KERNEL_OPTION_HEADERS -include 
H> opt_global.h -fno-common -finline-limit=8000 --param 
H> inline-unit-growth=100 --param large-function-growth=1000  
H> -mno-align-long-strings -mpreferred-stack-boundary=2  -mno-mmx -mno-3dnow 
H> -mno-sse -mno-sse2 -ffreestanding
H> /usr/src/sys/dev/em/if_em.c:3178:34: macro "VLAN_INPUT_TAG" requires 4 
H> arguments, but only 3 given
H> mkdep: compile failed
H> *** Error code 1
H> Stop in /usr/obj/GUNE/usr/src/sys/CUV-LV.
H> *** Error code 1
H> I have no idea how to correct this, could you please help me? Or isn't it 
H> that simple, eg. VLAN isn't the same level in RELENG_6 and -current?

I'm going to merge the VLAN_INPUT_TAG() change soon. But merging em(4)
requires also a lot of taskqueue code merging.

Totus tuus, Glebius.

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