Date: Sat, 9 Feb 2002 15:02:41 -0800 (PST) From: Luigi Rizzo <luigi@FreeBSD.org> To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/kern kern_clock.c kern_poll.c src/sys/conf files.i386 options.i386 src/sys/i386/i386 swtch.s trap.c src/sys/i386/include asnames.h src/sys/net if.h if_var.h netisr.h src/sys/dev/fxp if_fxp.c if_fxpvar.h src/sys/pci if_dc.c ... Message-ID: <200202092302.g19N2f658919@freefall.freebsd.org>
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luigi 2002/02/09 15:02:41 PST
Modified files: (Branch: RELENG_4)
sys/kern kern_clock.c
sys/conf files.i386 options.i386
sys/i386/i386 swtch.s trap.c
sys/i386/include asnames.h
sys/net if.h if_var.h netisr.h
sys/dev/fxp if_fxp.c if_fxpvar.h
sys/pci if_dc.c if_dcreg.h if_sis.c if_sisreg.h
Added files: (Branch: RELENG_4)
sys/kern kern_poll.c
Log:
MFC: device polling code for RELENG_4.
Most of the code resides in kern_poll.c, plus device driver
modifications to individual drivers to add the *_poll() handler,
plus mostly one-line changes to a bunch of other files (listed at
the end of this message) to define constants or call the appropriate
functions.
A device_poll(4) manpage is still missing. It should contain an
explaination of what DEVICE_POLLING does, which you can find at
http://info.iet.unipi.it/~luigi/polling/
To use this facility: add
options DEVICE_POLLING
to your kernel config file, and at runtime do
sysctl kern.polling.enable=1
At the moment only the "dc", "fxp" and "sis" drivers have been
modified to make use of this feature. More drivers will be modified
as i have a chance to test them (patches welcome, look at the changes
in the above drivers).
Work supported by: the Xorp Project (www.xorp.org)
sys/kern/kern_poll.c
the core of the polling procedures
sys/conf/files.i386
kern/kern_poll.c optional device_polling
sys/conf/options.i386
DEVICE_POLLING opt_global.h
sys/i386/i386/swtch.s
hook to poll in the idle loop
sys/i386/i386/trap.c
hook to poll in traps
sys/i386/include/asnames.h
#define _idle_poll idle_poll
sys/kern/kern_clock.c
calls to init and periodic poll handlers
sys/net/if.h
#define IFF_POLLING 0x10000
sys/net/if_var.h
prototypes for functions used in device drivers
sys/net/netisr.h
NETISR_POLL and NETISR_POLLMORE, renumber NETISR_NETGRAPH
(not objected by julian)
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
Revision Changes Path
1.307.2.20 +1 -0 src/sys/conf/files.i386
1.132.2.12 +5 -0 src/sys/conf/options.i386
1.110.2.17 +70 -2 src/sys/dev/fxp/if_fxp.c
1.17.2.5 +4 -0 src/sys/dev/fxp/if_fxpvar.h
1.89.2.7 +4 -0 src/sys/i386/i386/swtch.s
1.147.2.9 +10 -0 src/sys/i386/i386/trap.c
1.44.2.6 +1 -0 src/sys/i386/include/asnames.h
1.105.2.8 +13 -0 src/sys/kern/kern_clock.c
1.2.2.1 +487 -0 src/sys/kern/kern_poll.c (new)
1.58.2.7 +9 -0 src/sys/net/if.h
1.18.2.12 +8 -1 src/sys/net/if_var.h
1.21.2.5 +3 -1 src/sys/net/netisr.h
1.9.2.32 +83 -0 src/sys/pci/if_dc.c
1.4.2.15 +4 -0 src/sys/pci/if_dcreg.h
1.13.4.19 +80 -3 src/sys/pci/if_sis.c
1.1.4.9 +3 -0 src/sys/pci/if_sisreg.h
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