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freebsd-nq/sys/conf/files.i386
Luigi Rizzo e4fc250c15 Device Polling code for -current. 
Non-SMP, i386-only, no polling in the idle loop at the moment.

To use this code you must compile a kernel with

        options DEVICE_POLLING

and at runtime enable polling with

        sysctl kern.polling.enable=1

The percentage of CPU reserved to userland can be set with

        sysctl kern.polling.user_frac=NN (default is 50)

while the remainder is used by polling device drivers and netisr's.
These are the only two variables that you should need to touch. There
are a few more parameters in kern.polling but the default values
are adequate for all purposes. See the code in kern_poll.c for
more details on them.

Polling in the idle loop will be implemented shortly by introducing
a kernel thread which does the job. Until then, the amount of CPU
dedicated to polling will never exceed (100-user_frac).
The equivalent (actually, better) code for -stable is at

	http://info.iet.unipi.it/~luigi/polling/

and also supports polling in the idle loop.

NOTE to Alpha developers:
There is really nothing in this code that is i386-specific.
If you move the 2 lines supporting the new option from
sys/conf/{files,options}.i386 to sys/conf/{files,options} I am
pretty sure that this should work on the Alpha as well, just that
I do not have a suitable test box to try it. If someone feels like
trying it, I would appreciate it.

NOTE to other developers:
sure some things could be done better, and as always I am open to
constructive criticism, which a few of you have already given and
I greatly appreciated.
However, before proposing radical architectural changes, please
take some time to possibly try out this code, or at the very least
read the comments in kern_poll.c, especially re. the reason why I
am using a soft netisr and cannot (I believe) replace it with a
simple timeout.

Quick description of files touched by this commit:

sys/conf/files.i386
        new file kern/kern_poll.c
sys/conf/options.i386
        new option
sys/i386/i386/trap.c
        poll in trap (disabled by default)
sys/kern/kern_clock.c
        initialization and hardclock hooks.
sys/kern/kern_intr.c
        minor swi_net changes
sys/kern/kern_poll.c
        the bulk of the code.
sys/net/if.h
        new flag
sys/net/if_var.h
        declaration for functions used in device drivers.
sys/net/netisr.h
        NETISR_POLL
sys/dev/fxp/if_fxp.c
sys/dev/fxp/if_fxpvar.h
sys/pci/if_dc.c
sys/pci/if_dcreg.h
sys/pci/if_sis.c
sys/pci/if_sisreg.h
        device driver modifications
2001-12-14 17:56:12 +00:00

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# This file tells config what files go into building a kernel,
# files marked standard are always included.
#
# $FreeBSD$
#
# The long compile-with and dependency lines are required because of
# limitations in config: backslash-newline doesn't work in strings, and
# dependency lines other than the first are silently ignored.
#
linux_genassym.o optional compat_linux \
dependency "$S/i386/linux/linux_genassym.c" \
compile-with "${CC} ${CFLAGS} -c ${.IMPSRC}" \
no-obj no-implicit-rule \
clean "linux_genassym.o"
#
linux_assym.h optional compat_linux \
dependency "$S/kern/genassym.sh linux_genassym.o" \
compile-with "sh $S/kern/genassym.sh linux_genassym.o > ${.TARGET}" \
no-obj no-implicit-rule before-depend \
clean "linux_assym.h"
#
svr4_genassym.o optional compat_svr4 \
dependency "$S/i386/svr4/svr4_genassym.c" \
compile-with "${CC} ${CFLAGS} -c ${.IMPSRC}" \
no-obj no-implicit-rule \
clean "svr4_genassym.o"
#
svr4_assym.h optional compat_svr4 \
dependency "$S/kern/genassym.sh svr4_genassym.o" \
compile-with "sh $S/kern/genassym.sh svr4_genassym.o > ${.TARGET}" \
no-obj no-implicit-rule before-depend \
clean "svr4_assym.h"
#
font.h optional sc_dflt_font \
compile-with "uudecode < /usr/share/syscons/fonts/${SC_DFLT_FONT}-8x16.fnt && file2c 'static u_char dflt_font_16[16*256] = {' '};' < ${SC_DFLT_FONT}-8x16 > font.h && uudecode < /usr/share/syscons/fonts/${SC_DFLT_FONT}-8x14.fnt && file2c 'static u_char dflt_font_14[14*256] = {' '};' < ${SC_DFLT_FONT}-8x14 >> font.h && uudecode < /usr/share/syscons/fonts/${SC_DFLT_FONT}-8x8.fnt && file2c 'static u_char dflt_font_8[8*256] = {' '};' < ${SC_DFLT_FONT}-8x8 >> font.h" \
no-obj no-implicit-rule before-depend \
clean "font.h ${SC_DFLT_FONT}-8x14 ${SC_DFLT_FONT}-8x16 ${SC_DFLT_FONT}-8x8"
#
atkbdmap.h optional atkbd_dflt_keymap \
compile-with "/usr/sbin/kbdcontrol -L ${ATKBD_DFLT_KEYMAP} | sed -e 's/^static keymap_t.* = /static keymap_t key_map = /' -e 's/^static accentmap_t.* = /static accentmap_t accent_map = /' > atkbdmap.h" \
no-obj no-implicit-rule before-depend \
clean "atkbdmap.h"
#
ukbdmap.h optional ukbd_dflt_keymap \
compile-with "/usr/sbin/kbdcontrol -L ${UKBD_DFLT_KEYMAP} | sed -e 's/^static keymap_t.* = /static keymap_t key_map = /' -e 's/^static accentmap_t.* = /static accentmap_t accent_map = /' > ukbdmap.h" \
no-obj no-implicit-rule before-depend \
clean "ukbdmap.h"
#
msysosak.o optional fla \
dependency "$S/contrib/dev/fla/i386/msysosak.o.uu" \
compile-with "uudecode < $S/contrib/dev/fla/i386/msysosak.o.uu" \
no-implicit-rule
#
trlld.o optional oltr \
dependency "$S/contrib/dev/oltr/i386${FMT}.trlld.o.uu" \
compile-with "uudecode < $S/contrib/dev/oltr/i386${FMT}.trlld.o.uu" \
no-implicit-rule
#
compat/linux/linux_file.c optional compat_linux
compat/linux/linux_getcwd.c optional compat_linux
compat/linux/linux_ioctl.c optional compat_linux
compat/linux/linux_ipc.c optional compat_linux
compat/linux/linux_mib.c optional compat_linux
compat/linux/linux_misc.c optional compat_linux
compat/linux/linux_signal.c optional compat_linux
compat/linux/linux_socket.c optional compat_linux
compat/linux/linux_stats.c optional compat_linux
compat/linux/linux_sysctl.c optional compat_linux
compat/linux/linux_uid16.c optional compat_linux
compat/linux/linux_util.c optional compat_linux
compat/pecoff/imgact_pecoff.c optional pecoff_support
compat/svr4/imgact_svr4.c optional compat_svr4
compat/svr4/svr4_fcntl.c optional compat_svr4
compat/svr4/svr4_filio.c optional compat_svr4
compat/svr4/svr4_ioctl.c optional compat_svr4
compat/svr4/svr4_ipc.c optional compat_svr4
compat/svr4/svr4_misc.c optional compat_svr4
compat/svr4/svr4_resource.c optional compat_svr4
compat/svr4/svr4_signal.c optional compat_svr4
compat/svr4/svr4_socket.c optional compat_svr4
compat/svr4/svr4_sockio.c optional compat_svr4
compat/svr4/svr4_stat.c optional compat_svr4
compat/svr4/svr4_stream.c optional compat_svr4
compat/svr4/svr4_syscallnames.c optional compat_svr4
compat/svr4/svr4_sysent.c optional compat_svr4
compat/svr4/svr4_sysvec.c optional compat_svr4
compat/svr4/svr4_termios.c optional compat_svr4
compat/svr4/svr4_ttold.c optional compat_svr4
contrib/dev/fla/fla.c optional fla
contrib/dev/oltr/if_oltr.c optional oltr
contrib/dev/oltr/trlldbm.c optional oltr
contrib/dev/oltr/trlldhm.c optional oltr
contrib/dev/oltr/trlldmac.c optional oltr
crypto/des/des_ecb.c optional netsmbcrypto
crypto/des/des_setkey.c optional netsmbcrypto
dev/advansys/adv_isa.c optional adv isa
dev/aic/aic_isa.c optional aic isa
dev/ar/if_ar_isa.c optional ar isa
dev/ed/if_ed_isa.c optional ed isa
dev/eisa/eisaconf.c optional eisa
dev/fb/fb.c optional fb
dev/fb/fb.c optional vga
dev/fb/splash.c optional splash
dev/fb/vga.c optional vga
dev/fe/if_fe_isa.c optional fe isa
dev/kbd/atkbd.c optional atkbd
dev/kbd/atkbdc.c count atkbdc
dev/kbd/kbd.c optional atkbd
dev/kbd/kbd.c optional kbd
dev/kbd/kbd.c optional sc
dev/kbd/kbd.c optional ukbd
dev/kbd/kbd.c optional vt
dev/lnc/if_lnc_isa.c optional lnc isa
dev/sbni/if_sbni.c optional sbni
dev/sbni/if_sbni_isa.c optional sbni isa
dev/sbni/if_sbni_pci.c optional sbni pci
dev/sio/sio.c optional sio
dev/sio/sio_isa.c optional sio isa
dev/sio/sio_pccard.c optional sio card
dev/sio/sio_pccard.c optional sio pccard
dev/sio/sio_pci.c optional sio pci
dev/sr/if_sr_isa.c optional sr isa
dev/syscons/apm/apm_saver.c optional apm_saver apm
dev/syscons/schistory.c count sc
dev/syscons/scmouse.c optional sc
dev/syscons/scterm.c optional sc
dev/syscons/scterm-dumb.c optional sc
dev/syscons/scterm-sc.c optional sc
dev/syscons/scvesactl.c optional sc vga vesa
dev/syscons/scvgarndr.c optional sc vga
dev/syscons/scvidctl.c optional sc
dev/syscons/scvtb.c optional sc
dev/syscons/syscons.c optional sc
dev/syscons/sysmouse.c optional sc
fs/smbfs/smbfs_io.c optional smbfs
fs/smbfs/smbfs_node.c optional smbfs
fs/smbfs/smbfs_smb.c optional smbfs
fs/smbfs/smbfs_subr.c optional smbfs
fs/smbfs/smbfs_vfsops.c optional smbfs
fs/smbfs/smbfs_vnops.c optional smbfs
gnu/i386/fpemul/div_small.s optional gpl_math_emulate \
warning "kernel contains GPL contaminated math emulator"
gnu/i386/fpemul/errors.c optional gpl_math_emulate
gnu/i386/fpemul/fpu_arith.c optional gpl_math_emulate
gnu/i386/fpemul/fpu_aux.c optional gpl_math_emulate
gnu/i386/fpemul/fpu_entry.c optional gpl_math_emulate
gnu/i386/fpemul/fpu_etc.c optional gpl_math_emulate
gnu/i386/fpemul/fpu_trig.c optional gpl_math_emulate
gnu/i386/fpemul/get_address.c optional gpl_math_emulate
gnu/i386/fpemul/load_store.c optional gpl_math_emulate
gnu/i386/fpemul/poly_2xm1.c optional gpl_math_emulate
gnu/i386/fpemul/poly_atan.c optional gpl_math_emulate
gnu/i386/fpemul/poly_div.s optional gpl_math_emulate
gnu/i386/fpemul/poly_l2.c optional gpl_math_emulate
gnu/i386/fpemul/poly_mul64.s optional gpl_math_emulate
gnu/i386/fpemul/poly_sin.c optional gpl_math_emulate
gnu/i386/fpemul/poly_tan.c optional gpl_math_emulate
gnu/i386/fpemul/polynomial.s optional gpl_math_emulate
gnu/i386/fpemul/reg_add_sub.c optional gpl_math_emulate
gnu/i386/fpemul/reg_compare.c optional gpl_math_emulate
gnu/i386/fpemul/reg_constant.c optional gpl_math_emulate
gnu/i386/fpemul/reg_div.s optional gpl_math_emulate
gnu/i386/fpemul/reg_ld_str.c optional gpl_math_emulate
gnu/i386/fpemul/reg_mul.c optional gpl_math_emulate
gnu/i386/fpemul/reg_norm.s optional gpl_math_emulate
gnu/i386/fpemul/reg_round.s optional gpl_math_emulate
gnu/i386/fpemul/reg_u_add.s optional gpl_math_emulate
gnu/i386/fpemul/reg_u_div.s optional gpl_math_emulate
gnu/i386/fpemul/reg_u_mul.s optional gpl_math_emulate
gnu/i386/fpemul/reg_u_sub.s optional gpl_math_emulate
gnu/i386/fpemul/wm_shrx.s optional gpl_math_emulate
gnu/i386/fpemul/wm_sqrt.s optional gpl_math_emulate
i386/acpica/OsdEnvironment.c optional acpica
i386/acpica/acpi_machdep.c optional acpica
i386/acpica/acpi_wakeup.c optional acpica
acpi_wakecode.h optional acpica \
dependency "$S/i386/acpica/acpi_wakecode.S" \
compile-with "${MAKE} -f $S/i386/acpica/Makefile MAKESRCPATH=$S/i386/acpica" \
no-obj no-implicit-rule before-depend \
clean "acpi_wakecode.h acpi_wakecode.o acpi_wakecode.bin"
#
i386/apm/apm.c optional apm
i386/i386/atomic.c standard \
compile-with "${CC} -c ${CFLAGS} ${DEFINED_PROF:S/^$/-fomit-frame-pointer/} ${.IMPSRC}"
i386/i386/autoconf.c standard
i386/i386/bios.c standard
i386/i386/bioscall.s standard
i386/i386/busdma_machdep.c standard
i386/i386/db_disasm.c optional ddb
i386/i386/db_interface.c optional ddb
i386/i386/db_trace.c optional ddb
i386/i386/elf_machdep.c standard
i386/i386/exception.s standard
i386/i386/i386-gdbstub.c optional ddb
i386/i386/i686_mem.c standard
i386/i386/identcpu.c standard
i386/i386/in_cksum.c optional inet
i386/i386/initcpu.c standard
i386/i386/k6_mem.c standard
# locore.s needs to be handled in Makefile to put it first. Otherwise it's
# now normal.
# i386/i386/locore.s standard
i386/i386/machdep.c standard
i386/i386/math_emulate.c optional math_emulate
i386/i386/mem.c standard
i386/i386/mp_clock.c optional smp
i386/i386/mp_machdep.c optional smp
i386/i386/mpapic.c optional smp
i386/i386/mpboot.s optional smp
i386/i386/nexus.c standard
i386/i386/perfmon.c optional perfmon
i386/i386/perfmon.c optional perfmon profiling-routine
i386/i386/pmap.c standard
i386/i386/support.s standard
i386/i386/swtch.s standard
i386/i386/sys_machdep.c standard
i386/i386/trap.c standard
i386/i386/vm86.c standard
i386/i386/vm_machdep.c standard
i386/ibcs2/ibcs2_errno.c optional ibcs2
i386/ibcs2/ibcs2_fcntl.c optional ibcs2
i386/ibcs2/ibcs2_ioctl.c optional ibcs2
i386/ibcs2/ibcs2_ipc.c optional ibcs2
i386/ibcs2/ibcs2_isc.c optional ibcs2
i386/ibcs2/ibcs2_isc_sysent.c optional ibcs2
i386/ibcs2/ibcs2_misc.c optional ibcs2
i386/ibcs2/ibcs2_msg.c optional ibcs2
i386/ibcs2/ibcs2_other.c optional ibcs2
i386/ibcs2/ibcs2_signal.c optional ibcs2
i386/ibcs2/ibcs2_socksys.c optional ibcs2
i386/ibcs2/ibcs2_stat.c optional ibcs2
i386/ibcs2/ibcs2_sysent.c optional ibcs2
i386/ibcs2/ibcs2_sysi86.c optional ibcs2
i386/ibcs2/ibcs2_sysvec.c optional ibcs2
i386/ibcs2/ibcs2_util.c optional ibcs2
i386/ibcs2/ibcs2_xenix.c optional ibcs2
i386/ibcs2/ibcs2_xenix_sysent.c optional ibcs2
i386/ibcs2/imgact_coff.c optional ibcs2
i386/isa/asc.c count asc
i386/isa/clock.c standard
i386/isa/cronyx.c optional cx
i386/isa/ctx.c count ctx
i386/isa/cx.c count cx
i386/isa/cy.c count cy
i386/isa/elink.c optional ep
i386/isa/elink.c optional ie
i386/isa/gpib.c optional gp
i386/isa/gsc.c count gsc
i386/isa/if_cx.c optional cx
i386/isa/if_el.c count el
i386/isa/if_le.c count le
i386/isa/if_rdp.c count rdp
i386/isa/if_wlp.c optional wlp
i386/isa/intr_machdep.c standard
i386/isa/ithread.c standard
i386/isa/isa.c optional isa
i386/isa/isa_compat.c optional isa compat_oldisa \
warning "Old ISA driver compatibility shims present."
i386/isa/isa_dma.c optional isa
i386/isa/istallion.c optional stli
i386/isa/loran.c optional loran
i386/isa/matcd/matcd.c count matcd
i386/isa/mca_machdep.c optional mca
i386/isa/mcd.c count mcd
i386/isa/mse.c optional mse
i386/isa/npx.c mandatory npx
i386/isa/pcaudio.c optional pca
i386/isa/pcf.c optional pcf
i386/isa/pcvt/pcvt_drv.c optional vt
i386/isa/pcvt/pcvt_ext.c optional vt
i386/isa/pcvt/pcvt_kbd.c optional vt
i386/isa/pcvt/pcvt_out.c optional vt
i386/isa/pcvt/pcvt_sup.c optional vt
i386/isa/pcvt/pcvt_vtf.c optional vt
i386/isa/pmtimer.c optional pmtimer
i386/isa/prof_machdep.c optional profiling-routine
i386/isa/rc.c count rc
i386/isa/scd.c count scd
i386/isa/spic.c optional spic
i386/isa/spigot.c count spigot
i386/isa/spkr.c optional speaker
i386/isa/stallion.c optional stl
i386/isa/tw.c count tw
i386/isa/vesa.c optional vga vesa
i386/isa/wt.c count wt
i386/linux/imgact_linux.c optional compat_linux
i386/linux/linux_dummy.c optional compat_linux
i386/linux/linux_locore.s optional compat_linux \
dependency "linux_assym.h"
i386/linux/linux_machdep.c optional compat_linux
i386/linux/linux_sysent.c optional compat_linux
i386/linux/linux_sysvec.c optional compat_linux
i386/pci/pci_cfgreg.c optional pci
i386/pci/pci_bus.c optional pci
i386/svr4/svr4_locore.s optional compat_svr4 \
dependency "svr4_assym.h" \
warning "COMPAT_SVR4 is broken and usage is, until fixed, not recommended"
i386/svr4/svr4_machdep.c optional compat_svr4
#
# isdn4bsd, needed for isic | iwic | ifpi | ihfc | ifpnp | itjc
#
i4b/layer1/i4b_l1dmux.c optional isic
i4b/layer1/i4b_l1lib.c optional isic
i4b/layer1/i4b_l1dmux.c optional iwic
i4b/layer1/i4b_l1lib.c optional iwic
i4b/layer1/i4b_l1dmux.c optional ifpi
i4b/layer1/i4b_l1lib.c optional ifpi
i4b/layer1/i4b_l1dmux.c optional ihfc
i4b/layer1/i4b_l1lib.c optional ihfc
i4b/layer1/i4b_l1dmux.c optional ifpnp
i4b/layer1/i4b_l1lib.c optional ifpnp
i4b/layer1/i4b_l1dmux.c optional itjc
i4b/layer1/i4b_l1lib.c optional itjc
#
# isdn4bsd, isic
#
i4b/layer1/isic/i4b_asuscom_ipac.c optional isic
i4b/layer1/isic/i4b_avm_a1.c optional isic
i4b/layer1/isic/i4b_bchan.c optional isic
i4b/layer1/isic/i4b_ctx_s0P.c optional isic
i4b/layer1/isic/i4b_drn_ngo.c optional isic
i4b/layer1/isic/i4b_dynalink.c optional isic
i4b/layer1/isic/i4b_elsa_qs1i.c optional isic
i4b/layer1/isic/i4b_elsa_qs1p.c optional isic
i4b/layer1/isic/i4b_elsa_pcc16.c optional isic
i4b/layer1/isic/i4b_hscx.c optional isic
i4b/layer1/isic/i4b_isac.c optional isic
i4b/layer1/isic/i4b_isic.c count isic
i4b/layer1/isic/i4b_isic_isa.c optional isic
i4b/layer1/isic/i4b_isic_pnp.c optional isic
i4b/layer1/isic/i4b_itk_ix1.c optional isic
i4b/layer1/isic/i4b_l1.c optional isic
i4b/layer1/isic/i4b_l1fsm.c optional isic
i4b/layer1/isic/i4b_siemens_isurf.c optional isic
i4b/layer1/isic/i4b_sws.c optional isic
i4b/layer1/isic/i4b_tel_s016.c optional isic
i4b/layer1/isic/i4b_tel_s0163.c optional isic
i4b/layer1/isic/i4b_tel_s08.c optional isic
i4b/layer1/isic/i4b_usr_sti.c optional isic
i4b/layer1/isic/i4b_diva.c optional isic
#
# isdn4bsd, iwic
#
i4b/layer1/iwic/i4b_iwic_pci.c count iwic
i4b/layer1/iwic/i4b_iwic_dchan.c optional iwic
i4b/layer1/iwic/i4b_iwic_bchan.c optional iwic
i4b/layer1/iwic/i4b_iwic_fsm.c optional iwic
i4b/layer1/iwic/i4b_iwic_l1if.c optional iwic
#
# isdn4bsd, ifpi
#
i4b/layer1/ifpi/i4b_ifpi_pci.c count ifpi
i4b/layer1/ifpi/i4b_ifpi_isac.c optional ifpi
i4b/layer1/ifpi/i4b_ifpi_l1.c optional ifpi
i4b/layer1/ifpi/i4b_ifpi_l1fsm.c optional ifpi
#
# isdn4bsd, ifpnp
#
i4b/layer1/ifpnp/i4b_ifpnp_avm.c count ifpnp
i4b/layer1/ifpnp/i4b_ifpnp_isac.c optional ifpnp
i4b/layer1/ifpnp/i4b_ifpnp_l1.c optional ifpnp
i4b/layer1/ifpnp/i4b_ifpnp_l1fsm.c optional ifpnp
#
# isdn4bsd, ihfc
#
i4b/layer1/ihfc/i4b_ihfc_l1if.c count ihfc
i4b/layer1/ihfc/i4b_ihfc_pnp.c optional ihfc
i4b/layer1/ihfc/i4b_ihfc_drv.c optional ihfc
#
# isdn4bsd, itjc
#
i4b/layer1/itjc/i4b_itjc_pci.c count itjc
i4b/layer1/itjc/i4b_itjc_isac.c optional itjc
i4b/layer1/itjc/i4b_itjc_l1.c optional itjc
i4b/layer1/itjc/i4b_itjc_l1fsm.c optional itjc
#
isa/atkbd_isa.c optional atkbd
isa/atkbdc_isa.c optional atkbdc
isa/fd.c optional fdc
isa/ppc.c optional ppc
isa/psm.c optional psm
isa/syscons_isa.c optional sc
isa/vga_isa.c optional vga
kern/imgact_aout.c standard
kern/imgact_gzip.c optional gzip
kern/kern_poll.c optional device_polling
kern/link_aout.c standard
kern/md4c.c optional netsmb
kern/subr_diskmbr.c standard
libkern/divdi3.c standard
libkern/moddi3.c standard
libkern/qdivrem.c standard
libkern/ucmpdi2.c standard
libkern/udivdi3.c standard
libkern/umoddi3.c standard
netsmb/smb_conn.c optional netsmb
netsmb/smb_crypt.c optional netsmb
netsmb/smb_dev.c optional netsmb
netsmb/smb_iod.c optional netsmb
netsmb/smb_rq.c optional netsmb
netsmb/smb_smb.c optional netsmb
netsmb/smb_subr.c optional netsmb
netsmb/smb_trantcp.c optional netsmb
netsmb/smb_usr.c optional netsmb
dev/em/if_em.c optional em
dev/em/if_em_fxhw.c optional em
dev/em/if_em_phy.c optional em
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