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History log of /src/sys/dev/raidframe/rf_callback.c
RevisionDateAuthorComments
 1.25  23-Jul-2021  oster Extensive mechanical changes to the pools used in RAIDframe.

Alloclist remains not per-RAID, so initialize that pool
separately/differently than the rest.

The remainder of pools in RF_Pools_s are now per-RAID pools. Mostly
mechanical changes to functions to allocate/destroy per-RAID pools.
Needed to make raidPtr available in certain cases to be able to find
the per-RAID pools.

Extend rf_pool_init() to now populate a per-RAID wchan value that is
unique to each pool for a given RAID device.

TODO: Complete the analysis of the minimum number of items that are
required for each pool to allow IO to progress (i.e. so that a request
for pool resources can always be satisfied), and dynamically scale
minimum pool sizes based on RAID configuration.
 1.24  10-Oct-2019  christos branches: 1.24.12;
fix the function pointer and callback mess:
- callback functions return 0 and their result is not checked; make them void.
- there are two types of callbacks and they used to overload their parameters
and the callback structure; separate them into "function" and "value"
callbacks.
- make the wait function signature consistent.
 1.23  10-Feb-2019  christos Introduce PR_ZERO to avoid open-coding memset()s everywhere. OK riastradh@.
 1.22  15-Mar-2009  cegger branches: 1.22.64;
ansify function definitions
 1.21  14-Mar-2009  dsl Change about 4500 of the K&R function definitions to ANSI ones.
There are still about 1600 left, but they have ',' or /* ... */
in the actual variable definitions - which my awk script doesn't handle.
There are also many that need () -> (void).
(The script does handle misordered arguments.)
 1.20  16-Nov-2006  christos branches: 1.20.52; 1.20.62; 1.20.68;
__unused removal on arguments; approved by core.
 1.19  12-Oct-2006  christos - sprinkle __unused on function decls.
- fix a couple of unused bugs
- no more -Wno-unused for i386
 1.18  11-Dec-2005  christos branches: 1.18.20; 1.18.22;
merge ktrace-lwp.
 1.17  27-Feb-2005  perry nuke trailing whitespace
 1.16  07-Mar-2004  oster branches: 1.16.8; 1.16.10;
- Introduce rf_pools which contains all of the various global pools used
by RAIDframe. Convert all other RAIDframe global pools to use pools
defined within this new structure.
- Introduce rf_pool_init(), used for initializing a single pool in
RAIDframe. Teach each of the configuration routines to use
rf_pool_init().
- Cleanup a few pool-related comments.
- Cleanup revent initialization and #defines.
- Add a missing pool_destroy() for the reconbuffer pool.

(Saves another 1K off of an i386 GENERIC kernel, and makes
stuff a lot more readable)
 1.15  07-Mar-2004  oster - Introduce rf_pools which contains all of the various global pools used
by RAIDframe. Convert all other RAIDframe global pools to use pools
defined within this new structure.
- Introduce rf_pool_init(), used for initializing a single pool in
RAIDframe. Teach each of the configuration routines to use
rf_pool_init().
- Cleanup a few pool-related comments.
- Cleanup revent initialization and #defines.
- Add a missing pool_destroy() for the reconbuffer pool.

(Saves another 1K off of an i386 GENERIC kernel, and makes
stuff a lot more readable)
 1.14  05-Mar-2004  oster - remove the RF_*_INC's, as necessary. They are not needed any more.
- introduce RF_MIN_*'s, as necessary. These will indicate the
low-water mark for pools as well as the pool_prime() value.
- add pool_setlowat() for the critical pools.
- pool_prime() and pool_setlowat() the raidframe_cbufpool.
- re-order some pool_prime()'s and pool_sethiwat()'s for clarity.
 1.13  29-Feb-2004  oster Adjust _rf_ShutdownCreate() so that it is willing to wait for more
memory. Since we only now ever "return(0)", just return (void)
instead.

Cleanup all uses of rf_ShutdownCreate() to not worry about
it ever failing. Shaves another 600 bytes off of an i386 GENERIC kernel.
 1.12  30-Dec-2003  oster Some days you wonder if some of the function declaration consistency
was just an accident in the first place. Cleanup function decls and
a few comments. [ok.. so I wasn't going to fix this many.. but once
you're on a roll....]
 1.11  29-Dec-2003  oster - first kick at a major reworking of RAIDframe's memory allocation code:
- all freelists converted to pools
- initialization of structure members in certain cases where
code was relying on specific allocation and usage properties
to keep structures in a "known state" (that doesn't work with
pools!).
- make most pool_get() be "PR_WAITOK" until they can be analyzed
further, and/or have proper error handling added.
- all RF_Mallocs zero the space returned, so there is no difference
between RF_Calloc and RF_Malloc. In fact, all the RF_Calloc()'s
do is tend to do is get things horribly confused.
Make RF_Malloc() the "general memory allocator", with
RF_MallocAndAdd() the "general memory allocator with
allocation list".
- some of these RF_Malloc's et al. are destined to disappear.
- remove rf_rdp_freelist entirely (it's not used anywhere!)
- remove: #include "rf_freelist.h"
- to the files that were relying on the above, add: #include "rf_general.h"
- add: #include "rf_debugMem.h" to rf_shutdown.h to make it happy
about the loss of: #include "rf_freelist.h".

This shrinks an i386 GENERIC kernel by approx 5K. RAIDframe now
weighs in at about 162K on i386.
 1.10  21-Dec-2003  oster Since the 5th arg of pool_init() wasn't actually the number
of items with which to prime the pool, we now prime each
pool using pool_prime().
 1.9  21-Dec-2003  simonb Fix usage of fifth argument to pool_init().
 1.8  25-Oct-2002  oster branches: 1.8.6;
Poolify callback descriptor allocation. While some of the underlying
problems just get shuffled around a bit, we do play more nicely with
LOCKDEBUG now.
 1.7  14-Sep-2002  oster Everyone and their dog was using RF_ERRORMSG3 to print out the same
sort of error message, over and over again, in different files.
Rather than having the same text repeated in multiple .o files,
create a couple of little functions to do the printing, and save a
bundle of space. Also improves readability of code.
 1.6  13-Nov-2001  lukem add RCSIDs
 1.5  04-Oct-2001  oster Step 2 of the disentanglement. We now look to <dev/raidframe/*> for
the stuff that used to live in rf_types.h, rf_raidframe.h, rf_layout.h,
rf_netbsd.h, rf_raid.h, rf_decluster,h, and a few other places.
Believe it or not, when this is all done, things will be cleaner.

No functional changes to RAIDframe.
 1.4  26-Sep-2001  oster - rf_types.h doesn't really need to pull in rf_archs.h
- for *.c, don't rely on rf_types.h to pull in rf_archs.h
 1.3  05-Feb-1999  oster branches: 1.3.20; 1.3.22; 1.3.24;
Phase 2 of the RAIDframe cleanup. The source is now closer to KNF
and is much easier to read. No functionality changes.
 1.2  26-Jan-1999  oster RAIDframe cleanup, phase 1. Nuke simulator support, user-land driver,
out-dated comments, and other unneeded stuff. This helps prepare
for cleaning up the rest of the code, and adding new functionality.

No functional changes to the kernel code in this commit.
 1.1  13-Nov-1998  oster RAIDframe, version 1.1, from the Parallel Data Laboratory at
Carnegie Mellon University. Full RAID implementation, including
levels 0, 1, 4, 5, 6, parity logging, and a few other goodies.
Ported to NetBSD by Greg Oster.
 1.3.24.2  11-Oct-2001  fvdl Catch up with -current. Fix some bogons in the sparc64 kbd/ms
attach code. cd18xx conversion provided by mrg.
 1.3.24.1  01-Oct-2001  fvdl Catch up with -current.
 1.3.22.2  10-Oct-2002  jdolecek sync kqueue with -current; this includes merge of gehenna-devsw branch,
merge of i386 MP branch, and part of autoconf rototil work
 1.3.22.1  10-Jan-2002  thorpej Sync kqueue branch with -current.
 1.3.20.5  11-Nov-2002  nathanw Catch up to -current
 1.3.20.4  17-Sep-2002  nathanw Catch up to -current.
 1.3.20.3  14-Nov-2001  nathanw Catch up to -current.
 1.3.20.2  22-Oct-2001  nathanw Catch up to -current.
 1.3.20.1  26-Sep-2001  nathanw Catch up to -current.
Again.
 1.8.6.4  04-Mar-2005  skrll Sync with HEAD.

Hi Perry!
 1.8.6.3  21-Sep-2004  skrll Fix the sync with head I botched.
 1.8.6.2  18-Sep-2004  skrll Sync with HEAD.
 1.8.6.1  03-Aug-2004  skrll Sync with HEAD
 1.16.10.1  19-Mar-2005  yamt sync with head. xen and whitespace. xen part is not finished.
 1.16.8.1  29-Apr-2005  kent sync with -current
 1.18.22.2  10-Dec-2006  yamt sync with head.
 1.18.22.1  22-Oct-2006  yamt sync with head
 1.18.20.1  18-Nov-2006  ad Sync with head.
 1.20.68.1  13-May-2009  jym Sync with HEAD.

Commit is split, to avoid a "too many arguments" protocol error.
 1.20.62.1  28-Apr-2009  skrll Sync with HEAD.
 1.20.52.1  04-May-2009  yamt sync with head.
 1.22.64.2  13-Apr-2020  martin Mostly merge changes from HEAD upto 20200411
 1.22.64.1  10-Jun-2019  christos Sync with HEAD
 1.24.12.1  01-Aug-2021  thorpej Sync with HEAD.

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