Commit Graph

8 Commits

Author SHA1 Message Date
yamt
aec75b1cc6 - change the way to specify a bufq strategy. (by string rather than by number)
- rather than embedding bufq_state in driver softc,
  have a pointer to the former.
- move bufq related functions from kern/subr_disk.c to kern/subr_bufq.c.
- rename method to strategy for consistency.
- move some definitions which don't need to be exposed to the rest of kernel
  from sys/bufq.h to sys/bufq_impl.h.
  (is it better to move it to kern/ or somewhere?)
- fix some obvious breakage in dev/qbus/ts.c.  (not tested)
2005-10-15 17:29:10 +00:00
yamt
5cb036f6e3 add wedge support to xbd and cgd. 2005-08-20 12:03:52 +00:00
drochner
9b0c17575e constification fallout 2005-06-28 20:23:02 +00:00
xtraeme
9db2752f7e Make this build with "-Wcast-qual -Wshadow". 2005-05-31 02:50:59 +00:00
elric
befeae8929 Modified the dksubr routines to:
o  expect the disk's start routine to return an int.  If the
	   int is non-zero, we enqueue the request and try again
	   later.
	o  have a dk_start() routine which runs the request queue.
	o  have a dk_iodone() function which should be called by the
	   driver using the framwork from its iodone.  dk_iodone will
	   retry the queue since presumably further progress may be
	   possible once a request is complete.  It is required that
	   the underlying driver have the resources to keep at least
	   one transaction in flight at any time.

Modified cgd to:

	o  be able to keep one transaction in flight at any time
	   (almost) by keeping a buffer of size MAXPHYS in its softc
	   and use it.

We still need to make the cgd_cbufpool per device rather than global
and provide a low water mark for it.

Addresses PR: kern/24715
(at least according to the submitter.)
2004-03-27 23:23:06 +00:00
fvdl
d5aece61d6 Back out the lwp/ktrace changes. They contained a lot of colateral damage,
and need to be examined and discussed more.
2003-06-29 22:28:00 +00:00
darrenr
960df3c8d1 Pass lwp pointers throughtout the kernel, as required, so that the lwpid can
be inserted into ktrace records.  The general change has been to replace
"struct proc *" with "struct lwp *" in various function prototypes, pass
the lwp through and use l_proc to get the process pointer when needed.

Bump the kernel rev up to 1.6V
2003-06-28 14:20:43 +00:00
elric
017f74d210 A slight abstraction for disks. This is mainly [right now] in
support of the cryptographic disk which I'll be checking in shortly.
2002-10-04 18:02:00 +00:00