Commit Graph

35 Commits

Author SHA1 Message Date
Julian Elischer
f7ea2f55d1 There is no such thing any more as "struct bdevsw".
There is only cdevsw (which should be renamed in a later edit to deventry
or something). cdevsw contains the union of what were in both bdevsw an
cdevsw entries.  The bdevsw[] table stiff exists and is a second pointer
to the cdevsw entry of the device. it's major is in d_bmaj rather than
d_maj. some cleanup still to happen (e.g. dsopen now gets two pointers
to the same cdevsw struct instead of one to a bdevsw and one to a cdevsw).

rawread()/rawwrite() went away as part of this though it's not strictly
the same  patch, just that it involves all the same lines in the drivers.

cdroms no longer have write() entries (they did have rawwrite (?)).
tapes no longer have support for bdev operations.

Reviewed by: Eivind Eklund and Mike Smith
	Changes suggested by eivind.
1998-07-04 22:30:26 +00:00
Julian Elischer
fd5d1124e2 VOP_STRATEGY grows an (struct vnode *) argument
as the value in b_vp is often not really what you want.
(and needs to be frobbed). more cleanups will follow this.
Reviewed by: Bruce Evans <bde@freebsd.org>
1998-07-04 20:45:42 +00:00
Doug Rabson
ecbb00a262 This commit fixes various 64bit portability problems required for
FreeBSD/alpha.  The most significant item is to change the command
argument to ioctl functions from int to u_long.  This change brings us
inline with various other BSD versions.  Driver writers may like to
use (__FreeBSD_version == 300003) to detect this change.

The prototype FreeBSD/alpha machdep will follow in a couple of days
time.
1998-06-07 17:13:14 +00:00
Julian Elischer
19ab6a4071 Slightly more correct initialisation of the new buf struct for soft-updates.
Submitted by: Chris Csanady <ccsanady@friley585.res.iastate.edu>
Suggested by: Kirk McKusick
1998-03-09 20:39:26 +00:00
Jordan K. Hubbard
b5068bbbaf Properly bzero() structures after they're returned from getccdbuf().
Submitted by:	Chris Csanady <ccsanady@friley585.res.iastate.edu>
1998-02-22 10:01:23 +00:00
Jordan K. Hubbard
500117e484 Revert part of my previous patch - I don't see the *need*
to call splbio() from within an interrupt handler here. :-)
1998-02-15 08:28:26 +00:00
Jordan K. Hubbard
7d15435cb1 missing spl() call and off by one error in the handling of the partitions.
Submitted by:	Chris Csanady <ccsanady@friley585.res.iastate.edu>
Obtained from:	OpenBSD
1998-02-15 08:14:39 +00:00
Eivind Eklund
eaa22ef760 Remove unused devfs include. (Julian or Satoshi might want to add proper
DEVFS support here; just including the header file doesn't do any good, and
would make this depend on opt_devfs.h)
1998-01-31 03:19:06 +00:00
Poul-Henning Kamp
fdfcd4ae29 There is no ccdread() nor ccdwrite(). 1997-11-18 14:39:04 +00:00
Poul-Henning Kamp
e2738b4f1b Statizice. 1997-10-24 14:24:55 +00:00
Poul-Henning Kamp
f541e4a472 Remove a #ifndef __FreeBSD__ chunk. 1997-10-11 07:35:25 +00:00
Bruce Evans
958aaa7ef3 Removed unused #includes. 1997-06-14 13:56:12 +00:00
Søren Schmidt
e59f3105f6 Make ccd use the maxsecsize sector size as denominator, this
fixes ccd on != 512byte devices..
1997-05-01 19:18:40 +00:00
Bruce Evans
fce002fdef Don't include <sys/ioctl.h> in the kernel. Stage 1: don't include
it when it is not used.  In most cases, the reasons for including it
went away when the special ioctl headers became self-sufficient.
1997-03-24 11:25:10 +00:00
Peter Wemm
6875d25465 Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not
ready for it yet.
1997-02-22 09:48:43 +00:00
Mike Pritchard
06bcc9e510 Make ccd compile again after the Lite2 merge.
VOP_UNLOCK was being called with the wrong number of arguments.
1997-02-10 16:24:33 +00:00
Jordan K. Hubbard
1130b656e5 Make the long-awaited change from $Id$ to $FreeBSD$
This will make a number of things easier in the future, as well as (finally!)
avoiding the Id-smashing problem which has plagued developers for so long.

Boy, I'm glad we're not using sup anymore.  This update would have been
insane otherwise.
1997-01-14 07:20:47 +00:00
John Dyson
c0b89506ba Fix CCD for bounced devices. 1997-01-10 04:09:13 +00:00
Poul-Henning Kamp
bfbb029d87 Remove devconf, it never grew up to be of any use. 1996-09-06 23:09:20 +00:00
Satoshi Asami
34f3521636 Fail when odd number of disks are specified with mirror flag. Memory
leak fixes.  Miscellaneous cleanup.

Partially submitted by:	Matt White <mwhite+@CMU.EDU>
1996-07-24 23:45:24 +00:00
Poul-Henning Kamp
cba8a5ddd3 Make a "DWIM" function for adding [bc]devsw entries for bdev drivers.
Saves about 280 butes of source per driver, 56 bytes in object size
and another 56 bytes moves from data to bss.

No functional change intended nor expected.

GENERIC should be about one k smaller now :-)
1996-07-23 21:52:43 +00:00
Poul-Henning Kamp
10bc064c3a Substitute raw{read|write} for ccd{read|write} 1996-07-21 09:28:03 +00:00
Gary Palmer
c23670e294 Clean up -Wunused warnings.
Reviewed by:		bde
1996-06-12 05:11:41 +00:00
Satoshi Asami
1af0e025c9 Add #ifndef/#endif around the "#define CCD_OFFSET 16", so you can override
it in your kernel config file.

Requested (in essence) by:	phk
1996-05-13 09:17:42 +00:00
Satoshi Asami
0d88ef072c Leave 16 lines in front of each component partition. It's now safe to
use sd87a or sd237e even if they start at the beginning of the slice.

You can also use sd85c if you prefer, although you need to change the
type field in the disklabel to "4.2BSD".
1996-05-13 08:38:15 +00:00
Satoshi Asami
52faebb233 Add missing "int" to static var. 1996-04-24 09:42:22 +00:00
Satoshi Asami
e73228724f Change how mirror writes are handled, according to the discussion on the
mailing list.

When initiating a write, ccdbuffer() returns two "struct ccdbuf *"s
linked together by the cb_mirror field.  "cb_pflags &
CCDPF_MIRROR_DONE" is set to 0 on both of them.

When a component returns to ccdiodone(), it checks if "cb_pflags &
CCDPF_MIRROR_DONE" is set or not.  If not, it sets the partner's
flag and returns.  If it is, it means its partner has already
returned, so it will go to the regular cleanup (which is in the
fallthrough code).

There should be no performance or functionality changes unless the
higher-level scsi driver does something with the resid value.  The change
is purely aesthetical and prepares us for the parity implementation.
1996-03-26 02:29:11 +00:00
Satoshi Asami
e2a13e8c60 Ported to 2.2-current. Uses [bc]devsw_add(), and is also now a proper
pseudo-device.

Doesn't use devfs correctly yet.
1996-03-21 04:13:25 +00:00
Satoshi Asami
b8e29b5517 Fix one warning and fix one bug found while looking at another warning (but
caused by a different reason):

. #ifndef __FreeBSD__ around check for negative size, FreeBSD size_t is
  unsigned

. Disable mirror/parity if interleave size is 0 (i.e., serial concatenation).
1996-01-31 11:25:46 +00:00
Satoshi Asami
3bc746be91 Mirror support. When CCDF_MIRROR is set:
(1) The reads are always done from the first n/2 disks.

(2) Each write is done twice, to the "data" disk (in the first half) and
    the "mirror" disk (in the second half).

ccdbuffer() now takes an extra argument (struct ccdbuf **) and stores
the pointer to ccdbuf in there.  In case of a mirrored write, it
allocates and stores two pointers.  The "residual" is also doubled
for mirrored writes so that ccdiodone() can correctly tell when all
the writes are done.
1996-01-31 03:28:21 +00:00
Satoshi Asami
09b5920411 Prepare for adding mirroring. Check for flags (mirror forces uniform),
reduce the size to half, etc.  Right now it only uses the first n/2 disks
for both read and write.
1996-01-30 22:34:53 +00:00
Satoshi Asami
7ecb65fa26 Prepare to add support for parity. Report the post-parity size,
allocate space around parity blocks.
1996-01-02 23:32:54 +00:00
Satoshi Asami
aa8bdaec2b Added $Id$. 1995-12-28 00:22:45 +00:00
Satoshi Asami
d8594dfb93 Changes to make it work on FreeBSD-2.1. 1995-12-27 10:53:21 +00:00
Satoshi Asami
a56bb8a5cc ccd.c and ccd.4 from NetBSD-current circa 12/25/95. 1995-12-27 10:49:19 +00:00