Commit Graph

89 Commits

Author SHA1 Message Date
Jim Harris
be2cb0c535 test/bdevio: add delay before starting unit tests
This is a bit of a workaround for some upcoming changes
where bdev subsystem initialization will not wait for
all vbdevs to finish tasting all bdevs that are registered.

We need to allow those vbdevs to clean up after themselves
after doing their initial tasting, before we start the
unit tests, since the unit tests are blocking and won't
return to the reactor loop to allow asynchronous tasting
I/O to get returned to the vbdev modules.

Eventually we should consider modifying bdevio run
asynchronously, maybe including removing its use of CUnit
for test reporting.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I6c425dd2711ce06fb6df1678f08294d6228c9ae4

Reviewed-on: https://review.gerrithub.io/368616
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>
2017-07-12 12:42:56 -04:00
Daniel Verkamp
b509410cb1 nbd: add -t tracelog flag support
Adjust the usage() output so it matches the spdk_tracelog_usage() style.

Change-Id: I2555b7587ebb9a891a08412f045d94f980cd1255
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/368802
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2017-07-10 18:36:00 -04:00
Daniel Verkamp
782b0f1a75 bdev/gpt: dump partition type and unique GUID
Change-Id: Ibb28b8432c94e70f522bdf34c5f4a10e4c25a8bb
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/368610
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Ziye Yang <optimistyzy@gmail.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2017-07-10 15:36:52 -04:00
Daniel Verkamp
17c5ef7ab0 bdev/gpt: fix UUID/GUID typo
These are UEFI-style GUIDs in little endian byte order, not standard
UUIDs.

Change-Id: I4d61afa2901830c784c24a5e039bba1d98f32e62
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/368609
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ziye Yang <optimistyzy@gmail.com>
2017-07-10 15:36:52 -04:00
Daniel Verkamp
1c9e37f71d bdev/gpt: SPDK GUID should be in partition type
Fix the partition type GUID comparison to actually look at the partition
type GUID, not the unique per-partition GUID, and fix the test to match.

Change-Id: Ie64f1effcc75883f17ccf6240f6469161d2a5aa5
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/368606
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Ziye Yang <optimistyzy@gmail.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2017-07-10 15:36:52 -04:00
Ziye Yang
26d6770f1c GPT: add GPT bdev support
Change-Id: I6a138e1c1d775e8c8bfeede9600f8b0f799ecdad
Signed-off-by: Ziye Yang <optimistyzy@gmail.com>
Reviewed-on: https://review.gerrithub.io/362445
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>
2017-07-06 13:44:37 -04:00
Ziye Yang
5d12c41586 nbd: Add bdev_rpc lib
Add this lib, we can support rpc for bdev module

Change-Id: I21275c14c06787b6c0639170e52f08cae9ae3154
Signed-off-by: Ziye Yang <optimistyzy@gmail.com>
Reviewed-on: https://review.gerrithub.io/368283
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>
2017-07-06 13:44:37 -04:00
Jim Harris
57d174ff67 bdev: add spdk_bdev_open/close
Retire the old claim/unclaim semantics in favor of
open/close.  Clients must now open a bdev to get
an spdk_bdev_desc, then pass this desc to get an
I/O channel.

This allows multiple clients to open a bdev,
although only one may open a bdev with write
access.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I4d319f1278170124169a8a75fd791e926b3f7171

Reviewed-on: https://review.gerrithub.io/367611
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
2017-07-05 18:04:28 -04:00
Jim Harris
7f6c737a25 bdev: add virtual to base bdev relationships
Each virtual bdev now has a pointer to its base
bdev, and a base bdev has a pointers to any virtual
bdevs built on top of it.

Also add a new set of leaf iterators, to get only
bdevs that have no virtual bdevs built on top of
them.  These iterators are now used by the bdevio and
bdevperf utilities, in advance of the claim/unclaim
semantics getting removed in a future patch.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I669783764407cdd4920b5ee121959e2a58c8d436

Reviewed-on: https://review.gerrithub.io/367610
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
2017-07-05 15:09:46 -04:00
Daniel Verkamp
dbbde9991d test/bdev/nbd: allow building with old kernels
Older kernels do not support flush or trim operations; add #ifdefs to
allow the NBD test code to work on those kernels.

Fixes build on older distributions (e.g. CentOS 6).

Change-Id: Iae06f96b7db9a3bf4a494e2b2c2c15b37e6c1293
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/367132
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2017-06-29 16:51:12 -04:00
Jim Harris
4b468d7c9b bdevperf: create task buffer pool after enumerating targets
This ensures we have calculated the correct minimum
buffer alignment before allocating the buffers.

Fixes issue reported by Ziye Yang that bdevperf did not
work with AIO bdev backend.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: Ic223551cc3ce1fb723ffcd745513c04198f13433

Reviewed-on: https://review.gerrithub.io/367291
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
2017-06-28 13:06:37 -04:00
Jim Harris
f316c38783 test/bdev: add nbd test app
This utility enables accessing an SPDK block device
through the kernel using NBD (Network Block Device).

This can be helpful for running utilities like
parted on an SPDK block device for testing upcoming
GPT support.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I4769d91cdbfcc6c6736852fab0da3395d255ee4d

Reviewed-on: https://review.gerrithub.io/366490
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>
2017-06-23 13:01:04 -04:00
Ben Walker
674de77551 rpc: Add a separate subsystem library
This separates the RPC library from the event framework.

Change-Id: I26a9cb318b56d44ec9337f8a4db98967eb87ad95
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/365283
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2017-06-16 13:10:26 -04:00
Ben Walker
4808ff7957 copy: Create a separate copy subsystem library
This removes the strict dependency on the SPDK
event framework.

Change-Id: Ie6b6f9585d09ab1df0f25bf33d53e7cdecd83faa
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/365281
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2017-06-16 13:10:26 -04:00
Ben Walker
4c0eaac47a bdev: Create a separate bdev subsystem library
Much like bdev modules inside the bdev directory,
add a subsystems directory inside of event. The subsystem
specific code for the bdev library is placed in to
a separate library in that directory, breaking the
strict dependency of the bdev library on the event subsystem
code.

Change-Id: I255941b823a9ec3e2d62f22a586414949d8ff5ad
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/365055
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2017-06-16 13:10:26 -04:00
Ziye Yang
356e2ab20f event: remove spdk_app_init
In this patch, spdk_app_init will be merged into
spdk_app_start.
Due to this change, we need to change event_perf
to use spdk_app_start, since we cannot use spdk_app_init
anymore. So the related changes for event_perf is to
make it work with reactor framework.

Change-Id: Id67edf209fd628cca361a499068c93aeedfe6167
Signed-off-by: Ziye Yang <optimistyzy@gmail.com>
Reviewed-on: https://review.gerrithub.io/364153
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>
2017-06-15 18:26:52 -04:00
Daniel Verkamp
9f237eac85 env_dpdk: save and restore optind in spdk_env_init
DPDK's use of getopt() needs special handling of the optind global
variable since we are passing it a separate array of arguments (not the
typical argv and argc).  Set optind to 1 internally to env_dpdk so that
the apps don't need to know about it, and restore optind in case the
calling app is also using getopt().

Change-Id: Icbf07002c99fa9f94c866e8eff707124b0ef679b
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/365062
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>
2017-06-13 17:39:38 -04:00
Ben Walker
aff7e226f7 bdev: spdk_bdev_[read|write|flush|unmap|reset] now return int
It is not actually useful to be immediately returned
a handle to the bdev_io. There isn't anything valid
that the user can do with it at that point. Instead,
return an integer error code.

Change-Id: Iffa9a8dc5b2eefab57e3cc1f68919985431d17d1
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/364137
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
2017-06-08 16:35:49 -04:00
Ben Walker
4fe9536de0 bdev: Remove reset_type
There is now just one type of reset, which is equivalent
to a HARD reset previously.

Change-Id: I955b219cbc5c25793d97de1cc003b30ae99313ac
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/362615
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
2017-06-02 12:02:53 -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
Jim Harris
2e3f07ac40 bdev: add spdk_io_channel parameter to spdk_bdev_reset
This ensures that all spdk_bdev_io structures now have
an attached channel, simplifying some future work around
things like counting the number of outstanding IOs for
a given channel (which otherwise would have had to
account specially for resets).

Reset semantics are still that they affect the entire bdev
and not just the channel it was submitted on.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I8aad21a88faacecfd94bdba350059528eb62c390

Reviewed-on: https://review.gerrithub.io/362251
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
2017-05-24 11:42:15 -04:00
Ziye Yang
615c54b443 bdevperf: move location of bdevperf_construct_targets
Change-Id: Id6a384b91d7ab40de4382601a771b2f02bf31e81
Signed-off-by: Ziye Yang <optimistyzy@gmail.com>
Reviewed-on: https://review.gerrithub.io/362280
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>
2017-05-24 11:39:45 -04:00
Daniel Verkamp
b9bcc3531e bdev: make enum spdk_bdev_io_status private
The user should not see the bdev_io status directly; the NVMe and SCSI
error code wrappers provide the ability to translate to the desired
format regardless of what kind of error is stored inside the bdev_io.

Replace the spdk_bdev_io_completion_cb status parameter with a bool
simply indiciating whether the I/O completed successfully.

Change-Id: Iad18c2dac4374112c41b7a656154ed3ae1a68569
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/362047
Tested-by: <sys_sgsw@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2017-05-23 16:30:10 -04:00
Daniel Verkamp
ed362f1f35 test/bdevio: remove gencnt manipulation
The bdev generation count is an internal implementation detail;
applications should not be reading or writing it.

Change-Id: Ic4455b7b72dc80babbc410420c89f52ef5d77e6d
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2017-05-17 09:45:42 -07:00
Daniel Verkamp
326786a943 bdev: add getters for block size and block count
Change-Id: I6fad28da43c163ea4e2c4a04ced356b67d63652f
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2017-05-12 10:34:58 -07:00
Daniel Verkamp
1bcf22cde1 bdev: add getters for bdev name and product name
Change-Id: I6a75fada94fa845ecedd4cd8afc78f4259df14fe
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2017-05-12 09:36:30 -07:00
Daniel Verkamp
6a8cd333a9 bdev: add API function to get buffer alignment
Change-Id: I4c7eff4c903411994fc6bb9fae98f967eb14669c
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2017-05-10 13:16:27 -07:00
Daniel Verkamp
22b6098965 bdev: remove spdk_bdev thin_provisioning flag
Blockdevs already indicate support for unmap via
spdk_bdev_io_type_supported(bdev, SPDK_BDEV_IO_TYPE_UNMAP).

Change-Id: I634f27a281fd900bb3a6da2e4ff8a74e43579578
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2017-05-09 08:42:10 -07:00
Ben Walker
9ed75e4dab bdev: Rename rbuf to just buf
We plan to use these buffers for more than just reads.

Change-Id: I8fa6cb432a6cfe4406fbf240cd3aa2ae4ab5f3d5
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
2017-05-09 08:14:31 -07:00
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
cdfa0091f7 bdevperf: remove unnecessary caller_ctx access
The bdev layer manages the bdev_io caller_ctx internally.

Change-Id: Icb5a4f26b090d6f761af988fb26a319005e66a6d
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2017-05-05 09:39:49 -07:00
Daniel Verkamp
825379870b bdev: add accessor function to get an I/O's iovec
Change-Id: I09321abe93303d6225fbcce4065b0024dd541b19
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2017-05-05 09:39:49 -07:00
Changpeng Liu
21b08e13ae test/bdevperf: remove unnecessary DPDK log function call
Change-Id: I525bb326d944fc333ba6cd2a95b26326d7ac16d5
Signed-off-by: Changpeng Liu <changpeng.liu@intel.com>
2017-05-03 15:34:14 -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
Daniel Verkamp
0911aa83fb test/bdev: temporarily disable bdevperf reset test
The bdevperf reset test only executes in the nightly test run, so this
problem wasn't caught during review.

It gets stuck in an infinite loop and produces lots of log output; turn
it off to avoid filling up the disk with logs until we determine what
broke it.

Change-Id: I7601ba324a0531de3733cf5784ccd46da5618082
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2017-04-14 15:42:08 -07:00
Ben Walker
10f9391a22 test: Shorten some relative paths using readlink
Core dumps stop working if the path is longer than 64 bytes.
Use readlink to shorten some of the very long relative paths.

Change-Id: I5e7eb6580ca581c5ac3a71afb7b62953836e2660
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
2017-04-07 08:14:34 -07:00
Ben Walker
7f7c03a935 env: Remove all use of RTE_LCORE_FOREACH
Replace with an env abstraction.

Change-Id: I706374d265a270890e1f3ca920a10a0dc09624b0
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
2017-04-05 11:16:37 -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
Jim Harris
a871d5e5d7 test/bdevperf: validate inputs are positive integers
Negative queue depths, I/O sizes or time durations do
not make sense, so exit() if user input contains any of
those cases.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I9d0261d1151f41dfc11013c797bf949b736ebba3
2017-03-28 12:31:15 -07:00
Ben Walker
6d7b6e882c bdev/aio: The user now provides the names of AIO bdevs
The user now must choose the name for each AIO bdev. This
provides consistency for names across restarts.

Change-Id: I13ced1d02bb28c51d314512d60f739499b0c7d8d
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
2017-03-20 15:18:03 -07:00
Ben Walker
0829424e19 conf: No longer allow wildcard claiming of NVMe devices
All devices must be specified by BDF. Add support for scripts
to use lspci to grab the available NVMe device BDFs for the
current machine.

Change-Id: I4a53b335e3d516629f050ae1b2ab7aff8dd7f568
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
2017-03-14 08:38:04 -07:00
Cunyin Chang
77183f9722 bdev: Add support for hot plug in generic bdev layer.
Change-Id: Iac724518fb82b1b1bcafa7610210b0000c2063aa
Signed-off-by: Cunyin Chang <cunyin.chang@intel.com>
2017-03-02 09:48:39 +08:00
Daniel Verkamp
b913ad119e test/bdev: shorten bdevperf autotest
Change-Id: I1234f7dbb4a96b5790bb70800148cf6827810b4d
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2017-02-01 16:44:24 -07:00
Daniel Verkamp
378fc7787c test: clean up redundant process_core invocations
The main autotest.sh script automatically runs process_core as needed.
Individual test scripts should not be calling it.

Change-Id: I19d8799cd39f37f4768d8d89d3ece6aa993a6c95
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2017-01-30 14:08:38 -07:00
Daniel Verkamp
2c0bc38754 bdev: add "split" virtual blockdev example
This virtual block device takes an underlying block device and splits it
into several smaller equal-sized block devices.

Change-Id: I6f6e686c1177b2e4885f7e88809ad329caae55bd
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2017-01-30 13:51:18 -07:00
Daniel Verkamp
efccac8c7e bdev/nvme: remove NvmeLunsPerNs and LunSizeInMB
These were only intended for testing and should be replaced by a virtual
blockdev that can be layered on top of any kind of bdev.

Change-Id: I3ba2cc94630a6c6748d96e3401fee05aaabe20e0
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2017-01-30 13:51:18 -07:00
Jim Harris
133c4a70c1 bdevperf: save offset and unmap desc in bdevperf_task
This is preferable to rooting around the bdev_io structure
directly - which will no longer work if we want to support
modifying bdev_io structures in place for simple
bdev transformations like partitions.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I0c5007030d8a8b84649397c5ec55351497604fc0
2017-01-18 16:06:45 -07:00
Daniel Verkamp
0a845cb2bc bdevio: print I/O target bdev information
Change-Id: Icdff86fa7dbf9a44400a9b4796a2671fcc9bf75a
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2017-01-11 16:49:39 -07:00
Daniel Verkamp
249a68e92b bdev: add API to claim block devices
Claim the block devices used by iSCSI LUNs and NVMe-oF subsystems so
they can't accidentally be reused.

This will also be used by virtual block devices to allow layering of
bdevs.

Change-Id: I5384923fbf24f13f4ce720a797c5a628053d49f4
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2017-01-11 16:49:39 -07:00