Commit Graph

10 Commits

Author SHA1 Message Date
Matthew Macy
da92d5cbb3 Add zfs_file_* interface, remove vnodes
Provide a common zfs_file_* interface which can be implemented on all 
platforms to perform normal file access from either the kernel module
or the libzpool library.

This allows all non-portable vnode_t usage in the common code to be 
replaced by the new portable zfs_file_t.  The associated vnode and
kobj compatibility functions, types, and macros have been removed
from the SPL.  Moving forward, vnodes should only be used in platform
specific code when provided by the native operating system.

Reviewed-by: Sean Eric Fagan <sef@ixsystems.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Igor Kozhukhov <igor@dilos.org>
Reviewed-by: Jorgen Lundman <lundman@lundman.net>
Signed-off-by: Matt Macy <mmacy@FreeBSD.org>
Closes #9556
2019-11-21 09:32:57 -08:00
Brian Behlendorf
c25b8f99f8 Simplify threads, mutexs, cvs and rwlocks
* Simplify threads, mutexs, cvs and rwlocks

* Update the zk_thread_create() function to use the same trick
  as Illumos.  Specifically, cast the new pthread_t to a void
  pointer and return that as the kthread_t *.  This avoids the
  issues associated with managing a wrapper structure and is
  safe as long as the callers never attempt to dereference it.

* Update all function prototypes passed to pthread_create() to
  match the expected prototype.  We were getting away this with
  before since the function were explicitly cast.

* Replaced direct zk_thread_create() calls with thread_create()
  for code consistency.  All consumers of libzpool now use the
  proper wrappers.

* The mutex_held() calls were converted to MUTEX_HELD().

* Removed all mutex_owner() calls and retired the interface.
  Instead use MUTEX_HELD() which provides the same information
  and allows the implementation details to be hidden.  In this
  case the use of the pthread_equals() function.

* The kthread_t, kmutex_t, krwlock_t, and krwlock_t types had
  any non essential fields removed.  In the case of kthread_t
  and kcondvar_t they could be directly typedef'd to pthread_t
  and pthread_cond_t respectively.

* Removed all extra ASSERTS from the thread, mutex, rwlock, and
  cv wrapper functions.  In practice, pthreads already provides
  the vast majority of checks as long as we check the return
  code.  Removing this code from our wrappers help readability.

* Added TS_JOINABLE state flag to pass to request a joinable rather
  than detached thread.  This isn't a standard thread_create() state
  but it's the least invasive way to pass this information and is
  only used by ztest.

TEST_ZTEST_TIMEOUT=3600

Chunwei Chen <tuxoko@gmail.com>
Reviewed-by: Tom Caputi <tcaputi@datto.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #4547 
Closes #5503 
Closes #5523 
Closes #6377 
Closes #6495
2017-08-11 08:51:44 -07:00
Gvozden Neskovic
c17486b217 Add missing *_destroy/*_fini calls
The proposed debugging enhancements in zfsonlinux/spl#587
identified the following missing *_destroy/*_fini calls.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Gvozden Neskovic <neskovic@gmail.com>
Closes #5428
2017-05-04 19:26:28 -04:00
George Melikov
e2a65adbb8 OpenZFS 6871 - libzpool implementation of thread_create should enforce length is 0
Porting notes:
- Several direct callers of zk_thread_create() are passing TS_RUN for the
length.  The `len` and `state` were inverted,this commit fixes them.

Authored by: Eli Rosenthal <eli.rosenthal@delphix.com>
Reviewed by: Paul Dagnelie <pcd@delphix.com>
Reviewed by: Matthew Ahrens <mahrens@delphix.com>
Approved by: Robert Mustacchi <rm@joyent.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Ported-by: George Melikov mail@gmelikov.ru

OpenZFS-issue: https://www.illumos.org/issues/6871
OpenZFS-commit: https://github.com/openzfs/openzfs/commit/8fc9228
Closes #5621
2017-01-24 09:13:49 -08:00
Brian Behlendorf
02730c333c Use cstyle -cpP in make cstyle check
Enable picky cstyle checks and resolve the new warnings.  The vast
majority of the changes needed were to handle minor issues with
whitespace formatting.  This patch contains no functional changes.

Non-whitespace changes are as follows:

* 8 times ; to { } in for/while loop
* fix missing ; in cmd/zed/agents/zfs_diagnosis.c
* comment (confim -> confirm)
* change endline , to ; in cmd/zpool/zpool_main.c
* a number of /* BEGIN CSTYLED */ /* END CSTYLED */ blocks
* /* CSTYLED */ markers
* change == 0 to !
* ulong to unsigned long in module/zfs/dsl_scan.c
* rearrangement of module_param lines in module/zfs/metaslab.c
* add { } block around statement after for_each_online_node

Reviewed-by: Giuseppe Di Natale <dinatale2@llnl.gov>
Reviewed-by: Håkan Johansson <f96hajo@chalmers.se>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #5465
2016-12-12 10:46:26 -08:00
Gvozden Neskovic
65d71d4212 ABD raidz avx512f support
Implement shift based multiplication for 512f. Higher IPC over lookup based
methods yields up to 40% better performance on the current hardware.

Results on Xeon Phi(TM) CPU 7210:
implementation   gen_p           gen_pq          gen_pqr         rec_p           rec_q           rec_r           rec_pq          rec_pr          rec_qr          rec_pqr
original         142232671       24411492        12948205        283053705       22348167        4215911         9171609         2265548         2378370         1648495
scalar           295711162       49851491        33253815        293198109       88179448        61866752        27941684        25764416        17384442        12138153
sse2             410055998       199642658       117973654       406240463       152688682       121092250       84968180        79291076        47473657        20779719
ssse3            411641595       199669571       117937647       406211024       137638508       117050346       81263322        76120405        46281559        32696722
avx2             616485806       311515332       188595628       605455115       260602390       230554476       148198817       138800254       92273356        62937819
avx512f          832191523       408509425       253599522       810094481       404325734       317590971       218235687       197204920       133101937       94001219
fastest          avx512f         avx512f         avx512f         avx512f         avx512f         avx512f         avx512f         avx512f         avx512f         avx512f

Signed-off-by: Gvozden Neskovic <neskovic@gmail.com>
2016-11-29 14:34:33 -08:00
Gvozden Neskovic
cbf484f8ad ABD Vectorized raidz
Enable vectorized raidz code on ABD buffers.  The avx512f,
avx512bw, neon and aarch64_neonx2 are disabled in this commit.
With the exception of avx512bw these implementations are
updated for ABD in the subsequent commits.

Signed-off-by: Gvozden Neskovic <neskovic@gmail.com>
2016-11-29 14:34:33 -08:00
David Quigley
a6255b7fce DLPX-44812 integrate EP-220 large memory scalability 2016-11-29 14:34:27 -08:00
Gvozden Neskovic
292d573e70 raidz_test: respect wall time
When timeout is specified (-t), stop worker threads in the middle of work units.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Gvozden Neskovic <neskovic@gmail.com>
Issue #5180 
Closes #5190
2016-09-30 15:19:51 -07:00
Gvozden Neskovic
ab9f4b0b82 SIMD implementation of vdev_raidz generate and reconstruct routines
This is a new implementation of RAIDZ1/2/3 routines using x86_64
scalar, SSE, and AVX2 instruction sets. Included are 3 parity
generation routines (P, PQ, and PQR) and 7 reconstruction routines,
for all RAIDZ level. On module load, a quick benchmark of supported
routines will select the fastest for each operation and they will
be used at runtime. Original implementation is still present and
can be selected via module parameter.

Patch contains:
- specialized gen/rec routines for all RAIDZ levels,
- new scalar raidz implementation (unrolled),
- two x86_64 SIMD implementations (SSE and AVX2 instructions sets),
- fastest routines selected on module load (benchmark).
- cmd/raidz_test - verify and benchmark all implementations
- added raidz_test to the ZFS Test Suite

New zfs module parameters:
- zfs_vdev_raidz_impl (str): selects the implementation to use. On
  module load, the parameter will only accept first 3 options, and
  the other implementations can be set once module is finished
  loading. Possible values for this option are:
    "fastest" - use the fastest math available
    "original" - use the original raidz code
    "scalar" - new scalar impl
    "sse" - new SSE impl if available
    "avx2" - new AVX2 impl if available

See contents of `/sys/module/zfs/parameters/zfs_vdev_raidz_impl` to
get the list of supported values. If an implementation is not supported
on the system, it will not be shown. Currently selected option is
enclosed in `[]`.

Signed-off-by: Gvozden Neskovic <neskovic@gmail.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #4328
2016-06-21 09:27:26 -07:00