Commit Graph

49 Commits

Author SHA1 Message Date
Pawel Kaminski
de1d0f8fe9 jsonrpc: don't check returned value from spdk_jsonrpc_begin_result()
As spdk_jsonrpc_begin_result() is not allowed to return NULL we can
remove these checks. We didn't have any tests cases that goes this path
anyway.

Change-Id: I0894e76c0162591e550e70b172566b9060a6dd5f
Signed-off-by: Pawel Wodkowski <pawelx.wodkowski@intel.com>
Signed-off-by: Pawel Kaminski <pawelx.kaminski@intel.com>
Signed-off-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/459199
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
2019-07-22 05:13:30 +00:00
wuzhouhui
0acc20ab10 misc/rpc: rename some C functions of rpc methods
Traditionally, The C function name of rpc method "method_name" will be
"spdk_rpc_method_name", so make these function names consistent with
others. No behaviours changed.

Change-Id: Iac5396d4860bdbd78cba9031b4b6358161ec779b
Signed-off-by: wuzhouhui <wuzhouhui@kingsoft.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/453197
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
2019-05-07 05:30:16 +00:00
Darek Stojaczyk
e05a487129 ioat: allocate device struct using regular calloc
spdk_dma_malloc() is not required here, as the device
struct is neither DMA-able nor shared between processes.

While here, also allocate various ioat buffers using
spdk_zmalloc() instead of spdk_dma_zmalloc(), as
spdk_dma_*malloc() is about to be deprecated.

Change-Id: I4ffa40a59f48b2854ba3b35a759e4778007b47b7
Signed-off-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/450258
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
2019-04-09 06:30:42 +00:00
Ben Walker
c94020001a thread: Add a name parameter to spdk_register_io_device
This is a string name used for debugging only.

Change-Id: I9827f0e6c83be7bc13951c7b5f0951ce6c2a1ece
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/424127
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
2018-09-05 16:00:54 +00:00
Shuhei Matsumoto
ce2e68289b copy/ioat: Add scan_ioat_copy_engine RPC
Add an new RPC, scan_ioat_copy_engine, to scan IOATs for copy engine
dynamically. This patch is to keep compatibility to current config file.

Change-Id: Id1378fcda04fc5a868e373acc076bc34eeca01ae
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-on: https://review.gerrithub.io/411842
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2018-06-14 03:54:42 +00:00
Shuhei Matsumoto
239e63be7d copy/ioat: Change the default of IOAT from Enabled to Disabled
This patch changes the default setting of IOAT copy engine from
Enabled to Disabled. Accordingly this patch changes the config file
specification for IOAT copy engine from "Disable Yes/No" to
"Enable No/Yes".

Subsequent patches will add a new JSON RPC to configure IOAT
copy engine dynamically.

Change-Id: I754990cbb6ecc096953dd2fb9d34366b91111bf8
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-on: https://review.gerrithub.io/410757
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2018-06-12 17:41:29 +00:00
Ben Walker
a83f91c29a thread: Replace #include of io_channel.h with thread.h
Change-Id: I6babd4cf990bf19b510db88bdfb0ca81e29d9252
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/414700
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Madhu Pai <mpai@netapp.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
2018-06-12 15:24:07 +00:00
Daniel Verkamp
d7f842a7c6 copy/ioat: reduce log level of informational messages
Change-Id: I9c4fc8dfc8ca960f6d30a29a9c129fae815ffec5
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/406632
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
2018-04-06 18:31:54 -04:00
Shuhei Matsumoto
0fed4e0704 copy_engine: Support dump config text for IOAT config
IOAT module of copy engine requires config information in the .INI
config file. However dump config text is not supported yet.

Dump config text is legacy feature but this becomes a preparation
for the upcoming JSON config file.

Change-Id: I9b7349cac9c00ca3ce1d944a84cbc445a6f1aec4
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-on: https://review.gerrithub.io/405845
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
2018-04-04 12:18:31 -04:00
Shuhei Matsumoto
3f522bfeb0 copy_engine: Hold module configuration to dump it
This patch is a preparation for JSON-RPC and JSON config file.

Change-Id: Ieef3ccfb68405b5d6b98fdfb3f99eafd92bccaf7
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-on: https://review.gerrithub.io/405844
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
2018-04-04 12:18:31 -04:00
Roman Sudarikov
c3bc40a6ef io_channel: add return value to pollers
This will be used to track time used in pollers - each poller can now
indicate if it found any work to do or not.

For cases where it was obvious and the infrastructure was already in
place, existing pollers have been modified to return 0 or a positive
value to indicate whether work was done.  Other pollers have been
modified to return -1 by default, indicating that the poller isn't
indicating anything about whether work was performed.  This will allow
us to find un-annotated pollers easily in the future and fix them
incrementally.

Change-Id: Ifebfa56604a38434fac5c76ba7263267574ff199
Signed-off-by: Roman Sudarikov <roman.sudarikov@intel.com>
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/391042
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
2018-03-13 11:16:20 -04:00
Daniel Verkamp
543cb17248 build: remove $(ENV_CFLAGS) where not necessary
Only Makefiles for libraries that directly depend on DPDK (rather than
the SPDK env abstraction) should add $(ENV_CFLAGS).

Change-Id: Ifdf44d3ef8c42bbf7f20edd524b330d00658235b
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/392818
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2018-01-03 12:05:59 -05:00
Daniel Verkamp
59970a89be astyle: enforce braces around single-line statements
Require braces around all conditional statements, e.g.:

    if (cond)
        statement();

becomes:

    if (cond) {
        statement();
    }

This is the style used through most of the SPDK code, but several
exceptions crept in over time.  Add the astyle option to make sure we
are consistent.

Change-Id: I5a71980147fe8dfb471ff42e8bc06db2124a1a7f
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/390914
Reviewed-by: <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Dariusz Stojaczyk <dariuszx.stojaczyk@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2017-12-11 11:19:32 -05:00
Ben Walker
9c35e39c54 event: Move spdk_poller_register to io_channel
Make this generic and not directly dependent on
the event framework. That way our libraries can
register pollers without adding a dependency.

Change-Id: I7ad7a7ddc131596ca1791a7b0f43dabfda050f5f
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/387690
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Dariusz Stojaczyk <dariuszx.stojaczyk@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
2017-11-28 12:30:37 -05:00
Ben Walker
00b02039c5 event: Pollers must now be unregistered from the thread they run on.
Change-Id: I8ea8c59a0c67176c0c0c39abf807afad61ff3828
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/387689
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
2017-11-17 11:11:23 -05:00
Ben Walker
fcb4776fe7 event: Pollers must now be registered from the thread they run on.
Change-Id: I864cd8a6c206dfbe62fcb3f72275c1ae51aa4ed7
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/387688
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
2017-11-17 11:11:23 -05:00
Jim Harris
3178ad6476 env: return fd from spdk_pci_device_claim()
This allows users of this interface to then close the fd
when they want to release the claim.

This prepares for calling spdk_pci_device_claim() in the
nvme driver to cover not just the bdev_nvme driver but all
of our nvme example and test applications as well.  We'll
want the fd returned so that we can properly close it during
detach (including hotplug) use cases.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I8b149cc4e778ba31c0e7045b858c8a1561b6b7af

Reviewed-on: https://review.gerrithub.io/385523
Reviewed-by: Dariusz Stojaczyk <dariuszx.stojaczyk@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
2017-11-03 18:48:33 -04:00
Tomasz Zawadzki
6c54c13cd4 event/subsystem/bdev: asynchronous SPDK finish
First this change moves spdk_subsystem_fini() to trigger on
spdk_app_stop(). This ensures that spdk_subsystem_fini() is called
before reactors are stopped in spdk_reactors_stop().

Finish paths for subsystems, bdevs and copy engine is now
asynchronous.
Each of those three mentioned have to make sure they are
asynchronous as well.

Only bdev that currently has requirement for asynchronous finish
are logical volume.
Thus the change in vbdev_lvol.c making it move to next bdev module
only after all lvol stores were unloaded.

Fio_plugin finish of bdev and copy_engine was removed for now.
Next patch in series adds it back with async support.

Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: I80ee2d084f3d82c50bf1329e08996604ae61b1b3
Reviewed-on: https://review.gerrithub.io/381536
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
2017-10-27 13:03:55 -04:00
Jim Harris
a0d7056f11 copy: return 0 on success and appropriate errno on failure
This code was still using an old paradigm of returning the
number of bytes associated with a successful submission.
Just return 0 on success instead - if caller needs the
number of bytes for some reason they have the information
to get it.

While here, return an appropriate negated errno where possible -
we especially want ENOMEM returned when an ioat channel runs out
of descriptors.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I5858ccd6cff916b6c80fda7d2c9fce96fb39ef89

Reviewed-on: https://review.gerrithub.io/378858
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
2017-09-25 13:56:29 -04:00
John Meneghini
8a44220b1a env: Rename spdk_malloc/zmalloc/realloc/free to spdk_dma_(func)
- rename spdk_malloc_socket to spdk_dma_malloc_socket
  - rename spdk_malloc to spdk_dma_malloc
  - rename spdk_zmalloc to spdk_dma_zmalloc
  - rename spdk_realloc to spdk_dma_realloc
  - rename spdk_free to spdk_dma_free

Change-Id: I52a11b7a4243281f9c56f503e826fd7c4a1fd883
Signed-off-by: John Meneghini <johnm@netapp.com>
Reviewed-on: https://review.gerrithub.io/362604
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
2017-05-31 15:30:27 -04:00
Ben Walker
d969ac445a io_channel: Remove per-channel priority
This wasn't used anywhere and we currently believe there
are superior software-only techniques for controlling
quality of service.

Change-Id: Icdadd5870ed0629b338c307d2619bbc242c3e7a3
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/362065
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2017-05-26 13:42:19 -04:00
Ben Walker
305cb239d2 io_channel: Remove unique flag
This is no longer used anywhere. For the places where we previously
used it, we've since found alternate solutions that do not
require it.

Change-Id: I738a80b95ef50348ce1c14969a3812b0a625b3fd
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/362064
Tested-by: <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2017-05-22 19:27:17 -04:00
Ben Walker
b961d9cc12 include: Move the remainder of the code base to stdinc.h
Change-Id: I6a142feeaad3117bd3c75e7c5cb7231a1cfa78ae
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
2017-05-08 13:20:36 -07:00
Daniel Verkamp
6b91943209 scripts/check_format.sh: check spaces in comments
Fix up all existing spacing errors in comments and add an automated
check for patterns like /*comment*/.

Change-Id: I28f61c93612dc0f8aed66bd509da78e91ea9737e
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2017-04-24 13:37:41 -07:00
Ben Walker
16ae587966 env: Move lcore functions into env layer.
They were previously in the event library.

Change-Id: I24ffd8f771e895ccf5395c8120423cd114893139
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
2017-04-04 09:19:01 -07:00
Daniel Verkamp
edbca2a676 conf: add Boolean value helper function
Change-Id: Ie86745fe397167416aee356dc773a1bf8387b492
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2017-04-03 11:17:47 -07:00
Daniel Verkamp
b4572d452b ioat: print PCI addresses in hex for consistency
Change-Id: I0cc81e0b44f75268b1171c4ab5a23f97d9f8c8e2
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2017-02-14 10:27:47 -07:00
Daniel Verkamp
2931a3efef event: remove 'complete' parameter from poller_register
The spdk_poller_register() function provides a way to pass an event to
call once the poller is registered, but it is always NULL in the current
code base.

Change-Id: I459bf40ae4d050589577d113b7984f1563aaa9cc
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2017-01-05 11:57:18 -07:00
Daniel Verkamp
5b63b8a448 copy_engine: rename spdk_copy_module_get_max_ctx_size() to spdk_copy_task_size()
Make the public API clearer - if the user wants to allocate a
spdk_copy_task directly, they need to allocate spdk_copy_task_size()
bytes.

Also change the return type to size_t for consistency.

Change-Id: I0f3757056757c510421d680c5b4532edd9bc2561
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2016-11-16 15:04:40 -07:00
Daniel Verkamp
945217d2b2 copy_engine: split internals into spdk_internal
Change-Id: I3102e9761888c5afdc20d1a1abc9abf50484233d
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2016-11-16 14:44:35 -07:00
Daniel Verkamp
ee64969a7b copy_engine: add spdk_ prefix to types
Change-Id: I060718887950ee7f890e76d7e041e70db39974a2
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2016-11-16 14:14:50 -07:00
Daniel Verkamp
dca887b7d8 env: remove spdk_pci_device_get_device_name()
It always returns NULL in the current DPDK env implementation and was
not used outside of a few ioat examples where it is not particularly
informational.

Change-Id: I14b237c33bc25ddebc6b36bfbd6a4edf6762e3ca
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2016-11-02 15:58:03 -07:00
Daniel Verkamp
bbd7e1c4da env: add spdk_pci_addr_parse()
Add a helper function that converts a PCI address from a string into a
struct spdk_pci_addr and use it in place of the various sscanf()
invocations throughout SPDK.

Change-Id: Id2749723f76db741567e01b4bcb0fffb0e425fcd
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2016-11-02 14:15:02 -07:00
Daniel Verkamp
80f63aad73 copy_engine/ioat: use spdk_pci_addr for whitelist
Change-Id: Ie8f9f4923fcc571ef7d976157ce60e196d01e54d
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2016-11-01 10:07:30 -07:00
Daniel Verkamp
e912a90f77 env: pass PCI address when claiming devices
The PCI device claim function does not need the whole spdk_pci_device
structure, just the address.

Change-Id: If59df512043ee062cf9f759bdc104fc522625ba8
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2016-11-01 10:07:30 -07:00
Ben Walker
18a2cc11c1 env: Remove unused DPDK headers.
Remove #includes for all DPDK headers that weren't
necessary.

Change-Id: Ib02522e0f04e64a1c98afceb7508cc0e8d931a9d
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
2016-10-12 09:53:32 -07:00
Ben Walker
2224ff2162 env: Replace rte_malloc with spdk_zmalloc
Use the env library to perform all memory allocations
that previously called DPDK directly.

Change-Id: I6d33e85bde99796e0c85277d6d4880521c34f10d
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
2016-10-11 13:34:09 -07:00
Ben Walker
0dd80395f3 env: Move pci.c from util to env
This allows users to swap their PCI library from
libpciaccess/dpdk to another mechanism using the standard
method for swapping out the env library.

Change-Id: Ib2248f8b43754a540de2ec01897e571f0302b667
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
2016-10-05 11:53:24 -07:00
Ben Walker
a4747c6048 env: Make the environment library configurable.
This allows users to swap out SPDK's third party
libraries for an implementation based on their own
framework.

Change-Id: Ia0b7384ce5e31acba5ad0d7002dec9e95b759c52
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
2016-10-05 11:51:37 -07:00
Ben Walker
a30b5532cb memory: Rename to env
The new env library will wrap all third-party library
calls and be easily swappable with alternate implementations
at build time. For now, it's just the memory library
renamed.

Change-Id: I26a70933289f8137107208ba75f7520fd7a33da0
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
2016-10-05 09:49:35 -07:00
Ben Walker
6b1e4e732d Drop libpciaccess and switch to DPDK PCI
This patch also drops support for automatically unbinding
devices from the kernel - run scripts/setup.sh first.

Our generic pci interface is now hidden behind include/spdk/pci.h
and implemented in lib/util/pci.c. We no longer wrap the calls
in nvme_impl.h or ioat_impl.h. The implementation now only uses
DPDK and the libpciaccess dependency has been removed. If using
a version of DPDK earlier than 16.07, enumerating devices
by class code isn't available and only Intel SSDs will be
discovered. DPDK 16.07 adds enumeration by class code and all
NVMe devices will be correctly discovered.

Change-Id: I0e8bac36b5ca57df604a2b310c47342c67dc9f3c
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
2016-10-04 15:59:00 -07:00
Ben Walker
a17ad921e2 Replace RTE_VERIFY with assert
We already require the assert header from the C standard library,
so use that instead of RTE_VERIFY to further isolate DPDK
dependencies.

Change-Id: I4a718af858c88aff6080e33e6c3dd533c077b8f4
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
2016-09-28 10:15:56 -07:00
Jim Harris
32aa4fa0a3 util: add context parameter for unique I/O channels
Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I296992b2e03b9b516cfd26726405e49616ad08a5
2016-09-28 07:53:47 -07:00
Jim Harris
c1e3a87bf7 util: add 'unique' parameter to spdk_get_io_channel
Some subsystems may wish to create unique I/O channels
which are not shared across all users of the same I/O
device on the same thread.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I3ade3675d57338cf85b6a301285e6f392bd6cd2e
2016-09-28 07:53:47 -07:00
Jim Harris
0babf8ce81 bdev, copy: move all I/O paths to use I/O channels
bdev and copy modules no longer have check_io functions
now - all polling is done via pollers registered when
I/O channels are created.

Other default resources are also removed - for example,
a qpair is no longer allocated and assigned per bdev
exposed by the nvme driver - the qpairs are only allocated
via I/O channels.  Similar principle also applies to the
aio driver.

ioat channels are no longer allocated and assigned to
lcores - they are dynamically allocated and assigned
to I/O channels when needed.  If no ioat channel is
available for an I/O channel, the copy engine framework
will revert to using memcpy/memset instead.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I99435a75fe792a2b91ab08f25962dfd407d6402f
2016-09-26 14:02:07 -07:00
Jim Harris
eb605a8203 copy_engine, ioat: add spdk_io_channel support
Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I40db1b39882b68147aee4520cbd056f99901cfe4
2016-09-26 14:02:07 -07:00
Jim Harris
d85dce3b4f ioat: provide helper functions for allocating available channels
While here, also break out a new ioat_poll() function which
takes the ioat_channel as a parameter.  This will be reused
for some future refactoring.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I9c03577e8d90d9bbd4d7adb9c186f21f54b85e82
2016-09-22 09:12:36 -07:00
Daniel Verkamp
78b83fd7b2 copy_engine: add fill (memset) function
Change-Id: I626edcdaef8bd7a700fce5853fc2f85fc5b93ef7
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2016-09-02 09:24:47 -07:00
Daniel Verkamp
fc07014a54 copy_engine: add I/OAT copy engine module
Change-Id: I670ab7c32aa7571def22c06dde091972808f215b
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2016-07-20 09:57:22 -07:00