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Author SHA1 Message Date
Poul-Henning Kamp fd02a4233e Only dump 512 bytes of debugging. 
Always wait for things to settle before returning.
 2003-07-02 08:07:07 +00:00
Poul-Henning Kamp 44be139bbb Sleep on "-" in our normal state to simplify debugging. 2003-06-18 10:33:09 +00:00
Poul-Henning Kamp 22db1e9ff5 Add "GEOM_FOX", a class which detects and selects between multiple 
redundant paths to the same device.

This class reacts to a label in the first sector of the device,
which is created the following way:

        #    "0123456789abcdef012345..."
        #    "<----magic-----><-id-...>
        echo "GEOM::FOX       someid" | dd of=/dev/da0 conv=sync

NB: Since the fact that multiple disk devices are in fact the same
    device is not known to GEOM, the geom taste/spoil process cannot
    fully catch all corner cases and this module can therefore be
    confused if you do the right wrong things.

NB: The disk level drivers need to do the right thing for this to
    be useful, and that is not by definition currently the case.
 2003-06-18 09:29:28 +00:00
David E. O'Brien 50b1faef38 Use __FBSDID(). 
Approved by:	phk
 2003-06-11 06:49:16 +00:00
Poul-Henning Kamp ec421aec25 Fix error handling for ENOMEM style issues. 2003-06-09 19:12:19 +00:00
Poul-Henning Kamp 84c080a85e Improve the root-dev prompt facility for printing devices which could 
possibly be a root filesystem.
 2003-06-07 15:46:53 +00:00
Poul-Henning Kamp ac2ba9e3d5 Wait for everything to settle before we try to print the list of 
geom devices.
 2003-06-07 15:32:09 +00:00
Poul-Henning Kamp b61e8fed30 Make sure we return an error message if the geom parameter is not 
located.
 2003-06-07 15:31:44 +00:00
Poul-Henning Kamp c44c213f24 Polishing and nitpicking. 2003-06-07 11:06:44 +00:00
Poul-Henning Kamp df2c3922e9 Drop a memory-corruption debugging test-tool. 2003-06-07 10:55:48 +00:00
Poul-Henning Kamp a1a9b44569 Add missing va_end() calls. 
Noticed by:	tmm
 2003-06-07 10:16:53 +00:00
Poul-Henning Kamp d6c5e71627 Introduce g_provider_by_name() function, and use it. 2003-06-04 18:17:52 +00:00
Poul-Henning Kamp 3a3fcd72dd Make this a true GEOM class: 
Attach to the component devices using GEOM semantics.
        Create a GEOM provider instead of using disk_create()
        Use the GEOM OAM api for configuration.

I saw approx ~1% speedup in througput and ~7% in latency in a
simple minded test of a two-disk striped device.

This file was repo-copied from src/sys/dev/ccd/ccd.c.

This is not yet linked into the build.
 2003-06-04 18:16:09 +00:00
Poul-Henning Kamp ce64e0f2c9 Add a KASSERT to prevent the same GEOM class from being processed loaded 
twice.

Enforce that classes should have different names while we are here.
 2003-06-04 17:51:10 +00:00
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 786a6905ec Return an indicative error message. 2003-06-02 20:35:37 +00:00
Poul-Henning Kamp 83d771de78 Simplify the GEOM OAM api: Drop the request type, and let everything 
hinge on the "verb" parameter which the class gets to interpret as
it sees fit.

Move the entire request into the kernel and move changed parameters
back when done.
 2003-06-01 13:47:51 +00:00
Poul-Henning Kamp a6c58fec6c constify g_sanity() 2003-06-01 13:30:39 +00:00
Poul-Henning Kamp 58223589d5 Use bcmp() to compare hash strings. 2003-06-01 09:18:49 +00:00
Poul-Henning Kamp b77052e617 Remove unused variable. 
Remove unneeded return;

Found by:       FlexeLint
 2003-05-31 19:41:33 +00:00
Poul-Henning Kamp 3bae8877f4 Remove unused variables. 
Found by:       FlexeLint
 2003-05-31 19:40:43 +00:00
Poul-Henning Kamp 7fd69a8064 Remove unused variables. 
Rename struct h0h0 to g_hh01 in order to make it unique over files.

Found by:       FlexeLint
 2003-05-31 19:37:21 +00:00
Poul-Henning Kamp c543626797 Remove unused variables. 
Remove #ifdef notyet which will never become.

Found by:       FlexeLint
 2003-05-31 19:30:52 +00:00
Poul-Henning Kamp 23bfa598a8 Remove unused variable. 
Remove unneeded return.

Found by:       FlexeLint
 2003-05-31 19:29:38 +00:00
Poul-Henning Kamp 68283a9b5a Remove unused variable. 
Found by:       FlexeLint
 2003-05-31 19:28:53 +00:00
Poul-Henning Kamp ce67c955ca Add a destroy_geom method to the slice "library". 
If a slice class has no destroy_geom method, use this one.

This should allow all slicers to kldload.
 2003-05-31 19:25:05 +00:00
Poul-Henning Kamp fc29c9de5c Don't use & in front of arrays. 
Found by:       FlexeLint
 2003-05-31 19:23:11 +00:00
Poul-Henning Kamp a980e07369 Remove unused variable. 
Found by:       FlexeLint
 2003-05-31 19:08:23 +00:00
Poul-Henning Kamp d6b602d4b2 Remove unused variable. 
Found by:       FlexeLint
 2003-05-31 18:55:18 +00:00
Poul-Henning Kamp 6c87f8d5ea Introduce a init and fini member functions on a class. 
Use ->init() and ->fini() to handle the mutex in geom_disk.c

Remove the g_add_class() function and replace it with a standardized
g_modevent() function.

This adds the basic infrastructure for loading/unloading GEOM classes
 2003-05-31 18:13:07 +00:00
Poul-Henning Kamp f075585f67 Remove the G_CLASS_INITIALIZER, we do not need it anymore. 2003-05-31 16:59:27 +00:00
Poul-Henning Kamp 7e28a78f0e Use le_uuid_dec() since GPT UUID's are always in LE format. 
Tested by:      Marcel
 2003-05-31 16:48:43 +00:00
Poul-Henning Kamp 43f0db6cc5 Don't do silly thing if the disk_create() event gets canceled. 
Approved by:	re/scottl
 2003-05-25 16:57:10 +00:00
Poul-Henning Kamp 67fd2837cd Return ENXIO if the softc pointer is NULL, in all likelyhood the 
disk is in the process of disappearing.

Approved by:	re/rwats*
 2003-05-21 18:52:29 +00:00
Poul-Henning Kamp 3eb8c738fd When a disk disappears, destroy the class from the event thread 
to avoid race condtion.

Approved by:	re/rwatson
 2003-05-12 20:15:28 +00:00
Poul-Henning Kamp 4da6e74ce4 When a GEOM (/dev-)device is closed and we find that I/O requests are 
still outstanding, give them a chance to complete.

If after 10 seconds we still find outstanding I/O requests, complete
the close with a console warning that the system is likely to panic
later on.

This is a workaround for umount -f not quite doing the right thing.

Approved by:    re/scottl
 2003-05-09 21:25:28 +00:00
Poul-Henning Kamp 2cc9686e52 Hide the "ENOMEM" notice messages behind bootverbose. They are still 
a valuable debugging tool for certain kinds of problems.

Approved by:	re/scottl
 2003-05-07 05:37:31 +00:00
Poul-Henning Kamp c9e629297a Fix the WARNING for wrong rawoffset, I tested incompatible units. 
Approved by:	re/jhb
 2003-05-06 19:36:13 +00:00
Poul-Henning Kamp af3e2db5de Avoid double-free panic. 
Tripped up:	DougB
 2003-05-05 15:52:11 +00:00
Poul-Henning Kamp c0c393a2aa Re-order the the initialization slightly to improve structure. 2003-05-05 08:58:12 +00:00
Poul-Henning Kamp 0195276f54 Use a dedicated malloc(9) bucket for sector storage. 2003-05-05 08:37:07 +00:00
Poul-Henning Kamp 3fd530f7ec Don't warn if the rawoffset is zero, that is actually the best value it 
could have.
 2003-05-05 08:30:59 +00:00
Poul-Henning Kamp b9275c8fc6 Turn the check that rawoffset == mbroffset into a warning instead. 2003-05-05 06:46:49 +00:00
Poul-Henning Kamp b624374de8 Only accept a rawoffset if it is identical to the mbroffset. 2003-05-04 19:26:31 +00:00
Poul-Henning Kamp 7f9e81b703 Add a way to read the current mbroffset from a BSD label class. 2003-05-04 19:25:48 +00:00
Poul-Henning Kamp 1ee055e692 Add gctl_set_param() function. 2003-05-04 19:24:34 +00:00
Poul-Henning Kamp ce40bcd0d1 Remove debugging printfs which should not have been committed. 2003-05-04 18:48:25 +00:00
Poul-Henning Kamp a767c3daa3 Add a OAM interface for changing the label and writing the boot code. 2003-05-03 08:01:34 +00:00
Poul-Henning Kamp 951fd0d157 remove unused variables. 
Spotted by:	dougb
 2003-05-03 07:12:15 +00:00