Commit Graph

137 Commits

Author SHA1 Message Date
Poul-Henning Kamp
0f557e0ac0 Further devilification of CCD:
Change the list interface to simplify things.
Remove old list ioctls which bogusly exported the softc to userland.
Move the softc and associated structures from the public header to
the source file.
2003-06-02 21:29:04 +00:00
Poul-Henning Kamp
189337d81f Begin deevilification of CCD:
Make CCD a GEOM class.

For now only use this for implementing a OAM config method which
can return a list of configured CCD devices in the format which
"ccdconfig -g[v]" would normally output.
2003-06-02 20:50:03 +00:00
Poul-Henning Kamp
d6b602d4b2 Remove unused variable.
Found by:       FlexeLint
2003-05-31 18:55:18 +00:00
Poul-Henning Kamp
7715475960 More correct patch: Only call biofinish if we have not already sent
any children down the mesh.
2003-04-14 08:49:54 +00:00
Poul-Henning Kamp
2f912fc976 Call biofinish() also when we get a malloc() failure. 2003-04-14 08:08:17 +00:00
Poul-Henning Kamp
891619a66d Use bioq_flush() to drain a bio queue with a specific error code.
Retain the mistake of not updating the devstat API for now.

Spell bioq_disksort() consistently with the remaining bioq_*().

#include <geom/geom_disk.h> where this is more appropriate.
2003-04-01 15:06:26 +00:00
Poul-Henning Kamp
b4b138c27f Including <sys/stdint.h> is (almost?) universally only to be able to use
%j in printfs, so put a newsted include in <sys/systm.h> where the printf
prototype lives and save everybody else the trouble.
2003-03-18 08:45:25 +00:00
Poul-Henning Kamp
60794e0478 Centralize the devstat handling for all GEOM disk device drivers
in geom_disk.c.

As a side effect this makes a lot of #include <sys/devicestat.h>
lines not needed and some biofinish() calls can be reduced to
biodone() again.
2003-03-08 08:01:31 +00:00
Poul-Henning Kamp
0238f932b8 Initialize the second buffer for mirroring to point to itself and not its
partner.
2003-03-04 10:15:19 +00:00
Poul-Henning Kamp
7ac40f5f59 Gigacommit to improve device-driver source compatibility between
branches:

Initialize struct cdevsw using C99 sparse initializtion and remove
all initializations to default values.

This patch is automatically generated and has been tested by compiling
LINT with all the fields in struct cdevsw in reverse order on alpha,
sparc64 and i386.

Approved by:    re(scottl)
2003-03-03 12:15:54 +00:00
Poul-Henning Kamp
ad3467e1fc NO_GEOM cleanup: Convert CCD(4) to be use "struct disk*" instead of "dev_t"
as "this" handle.
2003-02-21 23:25:43 +00:00
Poul-Henning Kamp
b82ff75854 NO_GEOM cleanup:
Change the argument to disk_destroy() to be the same struct disk * as
disk_create() takes.

This enables drivers to ignore the (now) bogus dev_t which disk_create()
returns.
2003-02-21 15:13:26 +00:00
Warner Losh
a163d034fa Back out M_* changes, per decision of the TRB.
Approved by: trb
2003-02-19 05:47:46 +00:00
Poul-Henning Kamp
7e579a7c0a Announce our ability to do MAXPHYS transfers. 2003-02-11 21:29:53 +00:00
Poul-Henning Kamp
806d5cfff0 Eliminate the sc_openmask, ccdopen() and ccdclose() functions, we
can use the flag maintained by geom_disk.c

Having only a strategy method to intialize, don't waste space using
a cdevsw structure to do so.
2003-02-01 11:17:22 +00:00
Alfred Perlstein
44956c9863 Remove M_TRYWAIT/M_WAITOK/M_WAIT. Callers should use 0.
Merge M_NOWAIT/M_DONTWAIT into a single flag M_NOWAIT.
2003-01-21 08:56:16 +00:00
Poul-Henning Kamp
0f76d6d822 Finally give CCD the disk mini-layer treatment:
CAUTION:

        Previously CCD would be different from all other disks in
        the system in that there were no "ccd0" device, only a
        "ccd0c" device.

        This is no longer so after this commit.  If you access a
        ccd device through the "/dev/ccd0c" device _and_ have not
        actually put a BSD disklabel on the device, you will have
        to use the name "/dev/ccd0".  If your CCD device contains
        a BSD disklabel there should be no difference.

        You need to recompile ccdconfig(8) using the changed
        src/sys/sys/ccdvar.h for the -g "show me" option to work.

        I have run the regression test I created before I started
        overhauling CCD and it flags no problems, but this code
        is mildly evil, so take care.  If you would cry if you lost
        what's on CCD, make a back before you upgrade.

Create separate cdevsw for the /dev/ccd.ctl device.

Remove the cloning function, the disk-minilayer will do all naming
for us.

Remove the ccdunit and ccdpart functions and carry the softc pointer
in the relevant dev_t's and structures.

Release all memory when a CCD device is unconfigured, previously
the softc would linger behind.

Remove all traces of BSD disklabel fiddling code.

Remove ccdpsize, the disk mini-layer does this for us.

Don't allocate memory with M_WAITOK in ccdstrategy().

Remove boundary checks which the disk mini-layer does for us.

Don't allocate space for more than 2 ccdbuf, RAID was never implemented.

NB: I have not tried to address any of the preexisting ailments of CCD.
2003-01-19 15:00:58 +00:00
Poul-Henning Kamp
1dccd08a34 Unifdef -UDEBUG on the CCD driver. The debugging is mostly useless
and can be added back selectively, should anybody start to interest
themselves for the internal workings of ccd.

This commit will make the diffs for the following commits much more
readable.
2003-01-19 14:35:38 +00:00
Poul-Henning Kamp
e9fe7d1f7f Inline now trivial functions getccdbuf() and putccdbuf().
Fix another trivial memory-leak.
2003-01-18 12:23:49 +00:00
Poul-Henning Kamp
6b267654ab Fix minor memory-leak. 2003-01-18 11:33:06 +00:00
Poul-Henning Kamp
b51ea35631 Use the M_CCD malloc bucket instead of M_DEVBUF.
Don't keep a private freelist of a low number of trivially small structures.
2003-01-18 11:04:41 +00:00
Poul-Henning Kamp
360d71d1b5 Inline trivial function ccdintr() into its one caller ccdiodone().
Only call ccdfind() once in ccdiodone() and cache the result.
2003-01-18 10:44:17 +00:00
Poul-Henning Kamp
3b1746df8b Sanitize the copyright section a bit: We do not need two copies of the
four-clause BSD license in the file, one will do.
2003-01-18 10:08:27 +00:00
Poul-Henning Kamp
ddbf51af0c Find places to store the previously implicityly passed unit number in
the three configuration ioctls which need a unit number.

Add a "ccd.ctl" device for config operations.

Implement ioctls on ccd.ctl which rely on the explicityly passed
unit numbers.

Update ccdconfig to use the new ccd.ctl interface.

Add code to the kernel to detect old ccdconfig binaries, and whine
about it.

Add code to ccdconfig to detect old kernels, and whine about it.

These two compatibility measures will be retained only for a limited
period since they are in the way of GEOM'ification of ccd.
2003-01-17 14:53:53 +00:00
Poul-Henning Kamp
f05f44f0f2 Remove CCDF_SWAP and CCDF_PARITY, they have never been implemented. 2003-01-03 08:57:40 +00:00
Poul-Henning Kamp
d616ee081f Remove unused second argument from BIO_STRATEGY() 2003-01-03 05:51:11 +00:00
Jens Schweikhardt
d64ada501a Fix typos, mostly s/ an / a / where appropriate and a few s/an/and/
Add FreeBSD Id tag where missing.
2002-12-30 21:18:15 +00:00
Jeff Roberson
37ab0e0d81 - Use vrefcnt() instead of v_usecount. 2002-09-25 02:42:43 +00:00
Poul-Henning Kamp
7812d86f03 (This commit touches about 15 disk device drivers in a very consistent
and predictable way, and I apologize if I have gotten it wrong anywhere,
getting prior review on a patch like this is not feasible, considering
the number of people involved and hardware availability etc.)

If struct disklabel is the messenger: kill the messenger.

Inside struct disk we had a struct disklabel which disk drivers used to
communicate certain metrics to the disklayer above (GEOM or the disk
mini-layer).  This commit changes this communication to use four
explicit fields instead.

Amongst the benefits is that the fields do not get overwritten by
wrong or bogus on-disk disklabels.

Once that is clear, <sys/disk.h> which is included in the drivers
no longer need to pull <sys/disklabel.h> and <sys/diskslice.h> in,
the few places that needs them, have gotten explicit #includes for
them.

The disklabel inside struct disk is now only for internal use in
the disk mini-layer, so instead of embedding it, we malloc it as
we need it.

This concludes (modulus any mistakes) the series of disklabel related
commits.

I belive it all amounts to a NOP for all the rest of you :-)

Sponsored by:   DARPA & NAI Labs.
2002-09-20 19:36:05 +00:00
Maxime Henrion
2dfbcdd46d Fix another two printf() format errors which weren't warned
about because the bio_blknos were bogusly casted to long long.
2002-09-13 09:37:44 +00:00
Maxime Henrion
92faa7b50f Fix another printf() format error which wasn't warned about
because the bio_blkno was bogusly casted to an int.
2002-09-13 09:19:55 +00:00
Maxime Henrion
f368af933d Fix a printf() format error on 64 bits architectures.
Also fix some style bugs on the same line.
2002-09-13 09:16:06 +00:00
Bruce Evans
ff8cc2eb35 Fixed printf format errors. Most of them are 64-bit daddr_t casualties.
Printing daddr_t's using %d format was always an error, but gcc's
warning about it was ignored for supported 64-bit arches and not printed
for supported 32-bit arches.  Hundreds if not thousands thousands of
previously "fixed" daddr_t printings are now broken on 32-bit machines
by casting daddr_t's to longs.  daddr_t's should be printed using %jd
format, but this fix uses %lld since %j is not implemented in the
kernel yet.

Fixed some nearby format printf errors (style bugs).
2002-05-25 11:05:07 +00:00
Poul-Henning Kamp
77068a7fe2 Retire the bogus uses of the disklabel field d_sbsize and begin to
initialize it to zero so we don't have to have everbody and their
aunt including FFS specific header files.

Sponsored by: DARPA & NAI Labs.
2002-05-12 20:49:41 +00:00
Poul-Henning Kamp
2dd527b3ac Move generic disk ioctls from <sys/disklabel.h> to <sys/disk.h>.
Sponsored by:	DARPA & NAI Labs
2002-04-08 09:20:07 +00:00
Poul-Henning Kamp
408ab1b875 Retire the bogus ioctl DIOCGPART in toto.
Once again we can notice that badly thought out hacks ferment and infect
far more code than initially expected.

Sponsored by:	DARPA and NAI Labs.
2002-04-02 11:52:13 +00:00
Poul-Henning Kamp
ffee6e99f6 One less user of the bogus DIOCGPART ioctl. 2002-04-02 11:17:37 +00:00
Poul-Henning Kamp
6ede0acccc Remove bogus ccddump() function in favour of the standard nodump. 2002-03-29 21:12:11 +00:00
Alfred Perlstein
be1673823f Fix bio->bio_blkno format warning. 2002-03-19 20:12:08 +00:00
Kirk McKusick
0d2af52141 Introduce the new 64-bit size disk block, daddr64_t. Change
the bio and buffer structures to have daddr64_t bio_pblkno,
b_blkno, and b_lblkno fields which allows access to disks
larger than a Terabyte in size. This change also requires
that the VOP_BMAP vnode operation accept and return daddr64_t
blocks. This delta should not affect system operation in
any way. It merely sets up the necessary interfaces to allow
the development of disk drivers that work with these larger
disk block addresses. It also allows for the development of
UFS2 which will use 64-bit block addresses.
2002-03-15 18:49:47 +00:00
John Baldwin
a854ed9893 Simple p_ucred -> td_ucred changes to start using the per-thread ucred
reference.
2002-02-27 18:32:23 +00:00
Poul-Henning Kamp
e3f4d3b5e8 Reduce kernel stack usage of ccdinit() by MAXPATHLEN by using MALLOC(9).
Submitted by:	Maxim Konovalov <maxim@macomnet.ru>
MFC after:	1 week
2001-12-30 17:34:19 +00:00
Ian Dowse
55a13f7dd0 Return EOPNOTSUPP for unknown module events.
PR:		kern/18473
Submitted by:	"Jeroen C. van Gelderen" <gelderen@systemics.com>
2001-11-17 00:46:08 +00:00
Julian Elischer
b40ce4165d KSE Milestone 2
Note ALL MODULES MUST BE RECOMPILED
make the kernel aware that there are smaller units of scheduling than the
process. (but only allow one thread per process at this time).
This is functionally equivalent to teh previousl -current except
that there is a thread associated with each process.

Sorry john! (your next MFC will be a doosie!)

Reviewed by: peter@freebsd.org, dillon@freebsd.org

X-MFC after:    ha ha ha ha
2001-09-12 08:38:13 +00:00
Kris Kennaway
bf61e26696 Fix some signed/unsigned integer confusion, and add bounds checking of
arguments to some functions.

Obtained from:	NetBSD
Reviewed by:	peter
MFC after:	2 weeks
2001-09-10 11:28:07 +00:00
Poul-Henning Kamp
01706d206f Kill the NCCD constant by modernizing the ccd driver.
Submitted by:	sobomax
Reviewed by:	phk
2001-09-04 08:33:30 +00:00
Poul-Henning Kamp
724682d233 Polish error handling with biofinish(). 2001-05-08 09:10:27 +00:00
Poul-Henning Kamp
a468031ce8 Actually biofinish(struct bio *, struct devstat *, int error) is more general
than the bioerror().

Most of this patch is generated by scripts.
2001-05-06 20:00:03 +00:00
Andrew Gallatin
6a5a4d0a80 fix a number of printf format string warnings inside DEBUG ifdefs 2001-03-29 15:05:08 +00:00
Poul-Henning Kamp
f83880518b Send the remains (such as I have located) of "block major numbers" to
the bit-bucket.
2001-03-26 12:41:29 +00:00