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de85711ee1
NetBSD/sys/dev
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jonathan de85711ee1 Correct a performance bug from Bill Paul's original FreeBSD bge(4) driver: 
Each call to the FreeBSD bge_start() routine the transmit producer
pointer index from the chip mailbox register BGE_MBX_TX_HOST_PROD0_LO.
The local copy of that value is then updated by bge_encap() as
bge_encap() encapsulates packets in the Tx ring. If bge_encap()
succeds in encpuslating one or more packets, bge_start() tells the
chip to start sending the newly-encinitiates writes the new value back
to the chip mailbox register.

However, comparison of the Linux drivers (Broadcom-supplied and
open-source tg3.c) and to the OpenSolaris driver confirms that
register BGE_MBX_TX_HOST_PROD0_LO is write-only to software.
Thus, we can just keep a copy in the softc, and eliminate the
(expensive) PCI register write on each call to bge_start().

``Make it so''.
2005-11-15 06:05:44 +00:00
..
acpi regen 2005-11-12 11:54:29 +00:00
apm
arcbios Change the driver open function's conditional for overriding exclusive tty 2005-09-06 21:40:37 +00:00
ata Rework the funny "user_strat: No ioctl" error messages - the functions 2005-11-01 20:44:04 +00:00
bi Fixes due to cast-qual addition. 2005-06-27 11:05:24 +00:00
bluetooth bthcipoll must not return <sys/errno.h> error codes, return POLLERR/POLLHUP 2005-07-02 07:50:34 +00:00
cardbus finally nuke the useless cardbus "dev" locator 2005-10-25 16:37:50 +00:00
dec Change the driver open function's conditional for overriding exclusive tty 2005-09-06 21:40:37 +00:00
dkwedge - change the way to specify a bufq strategy. (by string rather than by number) 2005-10-15 17:29:10 +00:00
dmover
ebus
eisa kill a number of autoconf submatch functions which follow the 2005-08-25 22:33:18 +00:00
gpib - change the way to specify a bufq strategy. (by string rather than by number) 2005-10-15 17:29:10 +00:00
gpio -kill gba_name in attach arg 2005-10-11 16:01:03 +00:00
hpc Change the driver open function's conditional for overriding exclusive tty 2005-09-06 21:40:37 +00:00
i2c Use I2C_OP_{READ,WRITE}_WITH_STOP instead of I2C_OP_{READ,WRITE}. 2005-10-22 15:12:28 +00:00
i2o kill a number of autoconf submatch functions which follow the 2005-08-25 22:33:18 +00:00
ic Explicitly default the input baud rate (c_ispeed) to the output baud rate (c_ospeed) 2005-11-06 21:34:37 +00:00
ieee1394 Remove '#if defined(cobalt)'. 2005-08-29 17:20:31 +00:00
ir
isa - change the way to specify a bufq strategy. (by string rather than by number) 2005-10-15 17:29:10 +00:00
isapnp s/locdesc_t/int/g 2005-08-26 12:42:11 +00:00
marvell Change the driver open function's conditional for overriding exclusive tty 2005-09-06 21:40:37 +00:00
mca - change the way to specify a bufq strategy. (by string rather than by number) 2005-10-15 17:29:10 +00:00
microcode u_int8_t -> uint8_t 2005-06-27 03:36:25 +00:00
mii Fix misstake regen. 2005-08-28 15:39:12 +00:00
mscp - change the way to specify a bufq strategy. (by string rather than by number) 2005-10-15 17:29:10 +00:00
mvme
news
ofisa
ofw
pci Correct a performance bug from Bill Paul's original FreeBSD bge(4) driver: 2005-11-15 06:05:44 +00:00
pckbport Add a fake entry in pms_protocols array to avoid an out-of-bounds 2005-11-08 22:12:16 +00:00
pcmcia Regen from pcmciadevs rev 1.213: 2005-11-07 16:39:16 +00:00
podulebus
ppbus s/locdesc_t/int/g 2005-08-26 12:42:11 +00:00
qbus - change the way to specify a bufq strategy. (by string rather than by number) 2005-10-15 17:29:10 +00:00
raidframe - change the way to specify a bufq strategy. (by string rather than by number) 2005-10-15 17:29:10 +00:00
rasops We don't need <sys/bswap.h> here. 2005-09-03 22:55:55 +00:00
rcons
sbus Add hardware cursor support, needs testing. 2005-11-12 23:25:46 +00:00
scsipi Rework the funny "user_strat: No ioctl" error messages - the functions 2005-11-01 20:44:04 +00:00
smbus
std
sun Add a multiple include guard. 2005-10-15 15:41:22 +00:00
sysmon Spinkle some KNF. 2005-10-17 03:08:24 +00:00
tc s/locdesc_t/int/g 2005-08-26 12:42:11 +00:00
usb Make it possible to decide endianess dynamically. From port-evbmips/31912 2005-11-14 13:40:23 +00:00
vinum Follow up after adding const by doing some more. 2005-07-05 22:20:47 +00:00
vme - change the way to specify a bufq strategy. (by string rather than by number) 2005-10-15 17:29:10 +00:00
wscons Call nanotime() directly, instead of doing the 2005-11-11 07:07:42 +00:00
wsfont Extend the gallant font to full ISO8859-1. Content provided by der Mouse, 2005-09-19 19:27:31 +00:00
xmi
auconv.c
auconv.h
audio_if.h
audio.c
audiobell.c
audiobellvar.h
audiovar.h
aurateconv.c
ccd.c - change the way to specify a bufq strategy. (by string rather than by number) 2005-10-15 17:29:10 +00:00
ccdvar.h - change the way to specify a bufq strategy. (by string rather than by number) 2005-10-15 17:29:10 +00:00
cgd_crypto.c
cgd_crypto.h
cgd.c dksubr: do b_blkno -> b_rawblkno translation earlier so that bufq can uses it. 2005-10-18 00:14:43 +00:00
cgdvar.h no reason for those not to be const. 2005-06-27 03:00:03 +00:00
clock_subr.c
clock_subr.h
clockctl.c
cninit.c
cons.c
cons.h
DEVNAMES added a few missing device names 2005-09-27 14:47:41 +00:00
dksubr.c dksubr: do b_blkno -> b_rawblkno translation earlier so that bufq can uses it. 2005-10-18 00:14:43 +00:00
dkvar.h - change the way to specify a bufq strategy. (by string rather than by number) 2005-10-15 17:29:10 +00:00
fss.c Run all i/o from or to backing store through fss_bs_io(). 2005-10-24 14:25:06 +00:00
fssvar.h Run all i/o from or to backing store through fss_bs_io(). 2005-10-24 14:25:06 +00:00
kloader.c Remove the casts in the previous commit and use %zx. 2005-09-24 17:00:20 +00:00
kloader.h
kttcp.c
kttcpio.h
ld.c - change the way to specify a bufq strategy. (by string rather than by number) 2005-10-15 17:29:10 +00:00
ldvar.h - change the way to specify a bufq strategy. (by string rather than by number) 2005-10-15 17:29:10 +00:00
Makefile
md_root.c
md.c - change the way to specify a bufq strategy. (by string rather than by number) 2005-10-15 17:29:10 +00:00
md.h
midi_if.h
midi.c
midisyn.c
midisynvar.h
midivar.h
mm.c
mulaw.c
mulaw.h
nullcons_subr.c
radio_if.h
radio.c
radiovar.h
rnd.c
rndpool.c
sequencer.c
sequencervar.h
verified_exec.c Various fixes from blymn@ and myself. 2005-10-07 18:07:46 +00:00
vnd.c - change the way to specify a bufq strategy. (by string rather than by number) 2005-10-15 17:29:10 +00:00
vndvar.h - change the way to specify a bufq strategy. (by string rather than by number) 2005-10-15 17:29:10 +00:00