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freebsd-skq/sys/dev
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Justin T. Gibbs 08c6fbfa40 Change the delivery mechanism for incoming target commands. We now 
use a 256 entry ring buffer of descriptersfor this purpose.  This allows
the use of a simple 8bit counter in the sequencer code for tracking start
location.

Entries in the ring buffer now contain a "cmd_valid" byte at their tail.
As an entry is serviced, this byte is cleared by the kernel and set by
the sequencer during its dma of a new entry.  Since this byte is the last
portion of the command touched during a dma, the kernel can use this
byte to ensure the command it processes is completely valid.

The new command format requires a fixed sized DMA from the controller
to deliver which allowed for additional simplification of the sequencer
code.  The hack that required 1 SCB slot to be stolen for incoming
command delivery notification is also gone.
1998-11-23 01:33:47 +00:00
..
advansys Fix probes when a port address is specified. 1998-11-10 06:44:54 +00:00
aha Noop Commit - Change was in last revision. 1998-11-10 06:47:11 +00:00
ahb Hook up ahapoll so that dumps, synchronize cache commands or any other 1998-10-09 21:38:36 +00:00
aic7xxx Change the delivery mechanism for incoming target commands. We now 1998-11-23 01:33:47 +00:00
ar Initialize isa_devtab entries for interrupt handlers in individual 1998-10-22 05:58:45 +00:00
atkbdc * Add hooks to allow the X server to access I/O ports and memory. 1998-11-15 18:25:17 +00:00
bktr * Fix a couple of places in the device pager where an address was 1998-11-08 12:39:07 +00:00
buslogic Move a diagnostic behind "if (bootverbose)". 1998-11-13 13:23:36 +00:00
ccd Update system to new device statistics code. 1998-09-15 08:15:30 +00:00
cs Initialize isa_devtab entries for interrupt handlers in individual 1998-10-22 05:58:45 +00:00
cy Reduce i/o overheads by not preserving the channel access register in 1998-11-22 17:40:32 +00:00
de If this is going to have checks for kernel versions, it might as well 1998-11-06 02:13:14 +00:00
dec Add semicolon to INTERFACE declarations 1998-11-08 18:35:53 +00:00
dgb Added D_TTY to the cdevswitch flags for all tty drivers. This is required 1998-08-23 08:26:42 +00:00
dpt -Wunused cleanup. 1998-10-15 23:46:33 +00:00
ed Initialize isa_devtab entries for interrupt handlers in individual 1998-10-22 05:58:45 +00:00
eisa Fix list corruption and memory leak that could occur when 1998-05-14 19:47:38 +00:00
en fix a bug which could lock up a transmitter. 1998-10-09 11:48:22 +00:00
ep Initialize isa_devtab entries for interrupt handlers in individual 1998-10-22 05:58:45 +00:00
ex Initialize isa_devtab entries for interrupt handlers in individual 1998-10-22 05:58:45 +00:00
fdc Initialize isa_devtab entries for interrupt handlers in individual 1998-10-22 05:58:45 +00:00
fe Initialize isa_devtab entries for interrupt handlers in individual 1998-10-22 05:58:45 +00:00
fxp Defer rundown (m_freem) of completed transmit buffers for no longer 1998-10-22 02:00:49 +00:00
hea Trivial stylish changes, mostly to silence gcc. 1998-10-31 20:07:01 +00:00
hfa Trivial stylish changes, mostly to silence gcc. 1998-10-31 20:07:01 +00:00
ic Use [u]intptr_t instead of [unsigned] long to convert and/or represent 1998-08-10 17:21:49 +00:00
ie Initialize isa_devtab entries for interrupt handlers in individual 1998-10-22 05:58:45 +00:00
iicbus Remove broken and useless intr interface. 1998-11-22 22:01:42 +00:00
isp -Wunused cleanup. 1998-10-15 23:46:33 +00:00
joy This commit fixes various 64bit portability problems required for 1998-06-07 17:13:14 +00:00
kbd Fix ROOL UP/DOWN keys of PC-98. 1998-11-18 08:33:58 +00:00
lnc Fix a typo, and remove verbose error reporting when in 1998-10-30 11:53:58 +00:00
mc146818 Major changes to the generic device framework for FreeBSD/alpha: 1998-06-14 13:46:10 +00:00
mcd Initialize isa_devtab entries for interrupt handlers in individual 1998-10-22 05:58:45 +00:00
mse Initialize isa_devtab entries for interrupt handlers in individual 1998-10-22 05:58:45 +00:00
pcf iicbus probe and attach deferred until root_bus_configure() call. 1998-11-04 22:09:17 +00:00
pci s/%#p/%p/ to fix a warning. This looks like a leftover of once being 1998-11-09 08:08:06 +00:00
pcm/isa Add a missing newline 1998-11-14 13:07:59 +00:00
pdq Fixed printf format errors. Only one left in LINT on i386's. 1998-08-24 02:28:16 +00:00
ppbus Release the ppbus when probe fails. 1998-11-09 22:22:01 +00:00
ppc pcf.c: timeout management added 1998-10-31 11:37:09 +00:00
rc Initialize isa_devtab entries for interrupt handlers in individual 1998-10-22 05:58:45 +00:00
rp Added D_TTY to the cdevswitch flags for all tty drivers. This is required 1998-08-23 08:26:42 +00:00
scd Fixed printf format errors (only 1 left in GENERIC now). 1998-07-13 09:53:11 +00:00
si Fixed printf format errors. `struct eisa_device' uses a strange type 1998-08-23 10:12:12 +00:00
sio * Add hooks to allow the X server to access I/O ports and memory. 1998-11-15 18:25:17 +00:00
smbus Remove broken and useless intr interface. 1998-11-22 22:01:42 +00:00
snp This commit fixes various 64bit portability problems required for 1998-06-07 17:13:14 +00:00
sound/isa Add a missing newline 1998-11-14 13:07:59 +00:00
speaker Fixed printf format errors. Only one left in LINT on i386's. 1998-08-24 02:28:16 +00:00
sr Initialize isa_devtab entries for interrupt handlers in individual 1998-10-22 05:58:45 +00:00
syscons * Fix a couple of places in the device pager where an address was 1998-11-08 12:39:07 +00:00
tx ifioctl takes a u_long rather than an int on 3.0 1998-11-09 09:34:00 +00:00
vinum Remove machine/cputypes.h - it's an i386 only thing 1998-11-06 01:34:06 +00:00
vn Remove the SLICE code. 1998-09-14 19:56:42 +00:00
vx Import the (Fast) Etherlink XL driver. I'm reasonally confident in its 1998-08-16 17:14:59 +00:00
wl Depend on __FreeBSD_version instead of __FreeBSD__ 1998-11-15 19:30:48 +00:00