Commit Graph

126 Commits

Author SHA1 Message Date
Konstantin Belousov
cd85379104 Make MAXPHYS tunable. Bump MAXPHYS to 1M.
Replace MAXPHYS by runtime variable maxphys. It is initialized from
MAXPHYS by default, but can be also adjusted with the tunable kern.maxphys.

Make b_pages[] array in struct buf flexible.  Size b_pages[] for buffer
cache buffers exactly to atop(maxbcachebuf) (currently it is sized to
atop(MAXPHYS)), and b_pages[] for pbufs is sized to atop(maxphys) + 1.
The +1 for pbufs allow several pbuf consumers, among them vmapbuf(),
to use unaligned buffers still sized to maxphys, esp. when such
buffers come from userspace (*).  Overall, we save significant amount
of otherwise wasted memory in b_pages[] for buffer cache buffers,
while bumping MAXPHYS to desired high value.

Eliminate all direct uses of the MAXPHYS constant in kernel and driver
sources, except a place which initialize maxphys.  Some random (and
arguably weird) uses of MAXPHYS, e.g. in linuxolator, are converted
straight.  Some drivers, which use MAXPHYS to size embeded structures,
get private MAXPHYS-like constant; their convertion is out of scope
for this work.

Changes to cam/, dev/ahci, dev/ata, dev/mpr, dev/mpt, dev/mvs,
dev/siis, where either submitted by, or based on changes by mav.

Suggested by: mav (*)
Reviewed by:	imp, mav, imp, mckusick, scottl (intermediate versions)
Tested by:	pho
Sponsored by:	The FreeBSD Foundation
Differential revision:	https://reviews.freebsd.org/D27225
2020-11-28 12:12:51 +00:00
Edward Tomasz Napierala
d22ff249d9 Make g_attach() return ENXIO for orphaned providers; update various
classes to add missing error checking.

Reviewed by:	imp
MFC after:	2 weeks
Sponsored by:	NetApp, Inc.
Sponsored by:	Klara, Inc.
Differential Revision:	https://reviews.freebsd.org/D26658
2020-10-18 16:24:08 +00:00
Mateusz Guzik
d40bc60752 geom: clean up empty lines in .c and .h files 2020-09-01 22:14:09 +00:00
Xin LI
fcf69f3dbc Consistently use gctl_get_provider instead of home-grown variants.
Reviewed by:		cem, imp
MFC after:		2 weeks
Differential revision:	https://reviews.freebsd.org/D25739
2020-07-22 02:15:21 +00:00
Xin LI
8510f61acd sys/geom: consistently use _PATH_DEV instead of hardcoding "/dev/".
Reviewed by:	cem
MFC after:	2 weeks
Differential Revision:	https://reviews.freebsd.org/D25565
2020-07-09 02:52:39 +00:00
Pawel Biernacki
7029da5c36 Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (17 of many)
r357614 added CTLFLAG_NEEDGIANT to make it easier to find nodes that are
still not MPSAFE (or already are but aren’t properly marked).
Use it in preparation for a general review of all nodes.

This is non-functional change that adds annotations to SYSCTL_NODE and
SYSCTL_PROC nodes using one of the soon-to-be-required flags.

Mark all obvious cases as MPSAFE.  All entries that haven't been marked
as MPSAFE before are by default marked as NEEDGIANT

Approved by:	kib (mentor, blanket)
Commented by:	kib, gallatin, melifaro
Differential Revision:	https://reviews.freebsd.org/D23718
2020-02-26 14:26:36 +00:00
Warner Losh
8b522bdae6 Pass BIO_SPEEDUP through all the geom layers
While some geom layers pass unknown commands down, not all do. For the ones that
don't, pass BIO_SPEEDUP down to the providers that constittue the geom, as
applicable. No changes to vinum or virstor because I was unsure how to add this
support, and I'm also unsure how to test these. gvinum doesn't implement
BIO_FLUSH either, so it may just be poorly maintained. gvirstor is for testing
and not supportig BIO_SPEEDUP is fine.

Reviewed by: chs
Differential Revision: https://reviews.freebsd.org/D23183
2020-01-17 01:15:55 +00:00
Conrad Meyer
ac03832ef3 GEOM: Reduce unnecessary log interleaving with sbufs
Similar to what was done for device_printfs in r347229.

Convert g_print_bio() to a thin shim around g_format_bio(), which acts on an
sbuf; documented in g_bio.9.

Reviewed by:	markj
Discussed with:	rlibby
Sponsored by:	Dell EMC Isilon
Differential Revision:	https://reviews.freebsd.org/D21165
2019-08-07 19:28:35 +00:00
Alexander Motin
49ee0fcea5 Use sbuf_cat() in GEOM confxml generation.
When it comes to megabytes of text, difference between sbuf_printf() and
sbuf_cat() becomes substantial.

MFC after:	2 weeks
Sponsored by:	iXsystems, Inc.
2019-06-19 15:36:02 +00:00
Kyle Evans
74d6c131cb Annotate geom modules with MODULE_VERSION
GEOM ELI may double ask the password during boot. Once at loader time, and
once at init time.

This happens due a module loading bug. By default GEOM ELI caches the
password in the kernel, but without the MODULE_VERSION annotation, the
kernel loads over the kernel module, even if the GEOM ELI was compiled into
the kernel. In this case, the newly loaded module
purges/invalidates/overwrites the GEOM ELI's password cache, which causes
the double asking.

MFC Note: There's a pc98 component to the original submission that is
omitted here due to pc98 removal in head. This part will need to be revived
upon MFC.

Reviewed by:	imp
Submitted by:	op
Obtained from:	opBSD
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D14992
2018-04-10 19:18:16 +00:00
Pedro F. Giffuni
3728855a0f sys/geom: adoption of SPDX licensing ID tags.
Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.
2017-11-27 15:17:37 +00:00
Alexander Motin
8b64f3ca6c Use g_wither_provider() where applicable.
It is just a helper function combining G_PF_WITHER setting with
g_orphan_provider().
2016-09-23 21:29:40 +00:00
Konstantin Belousov
4e2732b550 Removal of Giant droping wrappers for GEOM classes.
Sponsored by:	The FreeBSD Foundation
2016-05-20 08:25:37 +00:00
Pedro F. Giffuni
e8d5712284 sys/geom: spelling fixes in comments.
No functional change.
2016-04-29 20:56:58 +00:00
Warner Losh
9a8fa125c1 Bump bio_cmd and bio_*flags from 8 bits to 16.
Differential Revision: https://reviews.freebsd.org/D5784
2016-04-14 05:10:41 +00:00
Warner Losh
c55f57071a Create an API to reset a struct bio (g_reset_bio). This is mandatory
for all struct bio you get back from g_{new,alloc}_bio. Temporary
bios that you create on the stack or elsewhere should use this before
first use of the bio, and between uses of the bio. At the moment, it
is nothing more than a wrapper around bzero, but that may change in
the future. The wrapper also removes one place where we encode the
size of struct bio in the KBI.
2016-02-17 17:16:02 +00:00
Jung-uk Kim
fd90e2ed54 CALLOUT_MPSAFE has lost its meaning since r141428, i.e., for more than ten
years for head.  However, it is continuously misused as the mpsafe argument
for callout_init(9).  Deprecate the flag and clean up callout_init() calls
to make them more consistent.

Differential Revision:	https://reviews.freebsd.org/D2613
Reviewed by:	jhb
MFC after:	2 weeks
2015-05-22 17:05:21 +00:00
Hans Petter Selasky
af3b2549c4 Pull in r267961 and r267973 again. Fix for issues reported will follow. 2014-06-28 03:56:17 +00:00
Glen Barber
37a107a407 Revert r267961, r267973:
These changes prevent sysctl(8) from returning proper output,
such as:

 1) no output from sysctl(8)
 2) erroneously returning ENOMEM with tools like truss(1)
    or uname(1)
 truss: can not get etype: Cannot allocate memory
2014-06-27 22:05:21 +00:00
Hans Petter Selasky
3da1cf1e88 Extend the meaning of the CTLFLAG_TUN flag to automatically check if
there is an environment variable which shall initialize the SYSCTL
during early boot. This works for all SYSCTL types both statically and
dynamically created ones, except for the SYSCTL NODE type and SYSCTLs
which belong to VNETs. A new flag, CTLFLAG_NOFETCH, has been added to
be used in the case a tunable sysctl has a custom initialisation
function allowing the sysctl to still be marked as a tunable. The
kernel SYSCTL API is mostly the same, with a few exceptions for some
special operations like iterating childrens of a static/extern SYSCTL
node. This operation should probably be made into a factored out
common macro, hence some device drivers use this. The reason for
changing the SYSCTL API was the need for a SYSCTL parent OID pointer
and not only the SYSCTL parent OID list pointer in order to quickly
generate the sysctl path. The motivation behind this patch is to avoid
parameter loading cludges inside the OFED driver subsystem. Instead of
adding special code to the OFED driver subsystem to post-load tunables
into dynamically created sysctls, we generalize this in the kernel.

Other changes:
- Corrected a possibly incorrect sysctl name from "hw.cbb.intr_mask"
to "hw.pcic.intr_mask".
- Removed redundant TUNABLE statements throughout the kernel.
- Some minor code rewrites in connection to removing not needed
TUNABLE statements.
- Added a missing SYSCTL_DECL().
- Wrapped two very long lines.
- Avoid malloc()/free() inside sysctl string handling, in case it is
called to initialize a sysctl from a tunable, hence malloc()/free() is
not ready when sysctls from the sysctl dataset are registered.
- Bumped FreeBSD version to indicate SYSCTL API change.

MFC after:	2 weeks
Sponsored by:	Mellanox Technologies
2014-06-27 16:33:43 +00:00
Alexander Motin
2c6a273750 Allow to insert new component to geom_raid3 without specifying number.
PR:		kern/160562
MFC after:	2 weeks
2013-01-15 10:06:35 +00:00
Alexander Motin
f62c1a47d6 Alike to r242314 for GRAID make GRAID3 more aggressive in marking volumes
as clean on shutdown and move that action from shutdown_pre_sync stage to
shutdown_post_sync to avoid extra flapping.

ZFS tends to not close devices on shutdown, that doesn't allow GEOM RAID
to shutdown gracefully.  To handle that, mark volume as clean just when
shutdown time comes and there are no active writes.

MFC after:	2 weeks
2013-01-15 01:27:04 +00:00
Gleb Smirnoff
4a7f7b10b5 When synchronizing, include in the config dump amount of
bytes syncronized.
  The rationale behind this is the following: for large disks the
percent synchronisation counter ticks too seldom, and monitoring
software (as well as human operator) can't tell whether
synchronisation goes on or one of disks got stuck. On an idle
server one can look into gstat and see whether synchronisation goes
on or not, but on a busy server that won't work. Also, new value
monitored can be differentiated obtaining the synchronisation speed
quite precisely.

Submitted by:	Konstantin Kukushkin <dark ramtel.ru>
Reviewed by:	pjd
2012-09-11 20:20:13 +00:00
Ed Schouten
6472ac3d8a Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs.
The SYSCTL_NODE macro defines a list that stores all child-elements of
that node. If there's no SYSCTL_DECL macro anywhere else, there's no
reason why it shouldn't be static.
2011-11-07 15:43:11 +00:00
Andrey V. Elsukov
5d807a0e1a Include sys/sbuf.h directly.
Reviewed by:	pjd
2011-07-11 05:22:31 +00:00
Alexander Motin
90f2be2430 Implement relaxed comparision for hardcoded provider names to make it
ignore adX/adaY difference in both directions to simplify migration to
the CAM-based ATA or back.
2011-04-27 00:10:26 +00:00
Alexander Leidinger
cb08c2cc83 Add some FEATURE macros for various GEOM classes.
No FreeBSD version bump, the userland application to query the features will
be committed last and can serve as an indication of the availablility if
needed.

Sponsored by:	Google Summer of Code 2010
Submitted by:	kibab
Reviewed by:	silence on geom@ during 2 weeks
X-MFC after:	to be determined in last commit with code from this project
2011-02-25 10:24:35 +00:00
Andrey V. Elsukov
95959703e1 Sector size can not be greater than MAXPHYS. Since GRAID3 calculates
sector size from user-specified block size, report to user about
big blocksize.

PR:		kern/147851
MFC after:	1 week
2011-01-12 13:55:01 +00:00
Alexander Motin
8de5811320 Move wakeup() out of mutex to reduce contention. 2010-01-05 10:52:21 +00:00
Alexander Motin
06b215fd3a Slightly optimize XOR calculation. 2010-01-05 02:06:05 +00:00
Alexander Motin
113d8e5046 As soon as geom_raid3 reports it's own stripe as sector size, report largest
underlying provider's stripe, multiplied by number of data disks in array,
due to transformation done, as array stripe.
2009-12-24 13:38:02 +00:00
Alexander Motin
d4060fa67d Make graid3 fallback to malloc() when component request size is bigger
then maximal prepared UMA zone size. This fixes crash with MAXPHYS > 128K.
2009-12-21 23:31:03 +00:00
Andrew Thompson
853a10a581 Revert r190676,190677
The geom and CAM changes for root_hold are the wrong solution for USB design
quirks.

Requested by:	scottl
2009-04-10 04:08:34 +00:00
Andrew Thompson
626fc9fe3d Add a how argument to root_mount_hold() so it can be passed NOWAIT and be called
in situations where sleeping isnt allowed.
2009-04-03 19:46:12 +00:00
Julian Elischer
3745c395ec Rename the kthread_xxx (e.g. kthread_create()) calls
to kproc_xxx as they actually make whole processes.
Thos makes way for us to add REAL kthread_create() and friends
that actually make theads. it turns out that most of these
calls actually end up being moved back to the thread version
when it's added. but we need to make this cosmetic change first.

I'd LOVE to do this rename in 7.0  so that we can eventually MFC the
new kthread_xxx() calls.
2007-10-20 23:23:23 +00:00
Jeff Roberson
982d11f836 Commit 14/14 of sched_lock decomposition.
- Use thread_lock() rather than sched_lock for per-thread scheduling
   sychronization.
 - Use the per-process spinlock rather than the sched_lock for per-process
   scheduling synchronization.

Tested by:      kris, current@
Tested on:      i386, amd64, ULE, 4BSD, libthr, libkse, PREEMPTION, etc.
Discussed with: kris, attilio, kmacy, jhb, julian, bde (small parts each)
2007-06-05 00:00:57 +00:00
Pawel Jakub Dawidek
501250ba60 Now, that we have gjournal in the tree add possibility to configure
gmirror and graid3 in a way that it is not resynchronized after a
power failure or system crash.
It is safe when gjournal is running on top of gmirror/graid3.
2006-11-01 22:51:49 +00:00
Pawel Jakub Dawidek
f187490a2d Change spaces to tabs where needed. 2006-11-01 22:16:53 +00:00
Pawel Jakub Dawidek
42461fba65 Implement BIO_FLUSH handling by simply passing it down to the components.
Sponsored by:	home.pl
2006-10-31 21:23:51 +00:00
Pawel Jakub Dawidek
11b2174f58 Guard against invalid metadata.
MFC after:	1 week
2006-10-10 15:01:47 +00:00
Pawel Jakub Dawidek
b7beab8d22 One more white space fix. 2006-09-30 08:23:06 +00:00
Pawel Jakub Dawidek
1517bdc897 Remove trailing spaces. 2006-09-30 08:01:11 +00:00
Pawel Jakub Dawidek
5a20446db8 Small fixes after adding __printflike() to gctl_error().
Approved by:	phk
MFC after:	3 days
2006-09-16 09:48:29 +00:00
Pawel Jakub Dawidek
8e007c52fd Fix synchronization in gmirror and graid3 which I broken. Synchronization
request can still have bio_to set to sc_provider (this is READ part of a
synchronization request) and in this case g_{mirror,raid3}_sync() wasn't
called as it should be.

MFC after:	1 week
2006-09-13 15:46:49 +00:00
John-Mark Gurney
0cca572e64 move created/detected/activated under debug level 1 to quiet the common case..
add count of active and total components to the launched line so you can
see at a glance if your mirror/raid3 is complete...

now:
GEOM_MIRROR: Device mirror/sam launched (2/2).

Reviewed by:	pjd
2006-09-09 21:45:37 +00:00
Pawel Jakub Dawidek
de6f1c7c6c Not only a request from us can be passed to g_{mirror,raid3}_worker()
function, but also a request to us, in which case checking bio_cflags
is wrong, because the class above us is controling it, not we.

MFC after:	1 week
2006-08-09 09:41:53 +00:00
Yaroslav Tykhiy
776fc0e90e Commit the results of the typo hunt by Darren Pilgrim.
This change affects documentation and comments only,
no real code involved.

PR:		misc/101245
Submitted by:	Darren Pilgrim <darren pilgrim bitfreak org>
Tested by:	md5(1)
MFC after:	1 week
2006-08-04 07:56:35 +00:00
Pawel Jakub Dawidek
3c57a41d7b Don't use f-word in comments. We are gentlemans.
Pointed out by:	Maciej Sobczak
2006-08-01 23:17:33 +00:00
Pawel Jakub Dawidek
86ed3c25e1 Always allow to specify components with /dev/ prefix.
MFC after:	3 days
2006-07-13 20:37:59 +00:00
Pawel Jakub Dawidek
3525bb6b98 Use proper defines instead of magic values.
MFC after:	1 week
2006-07-10 21:18:00 +00:00