Commit Graph

124 Commits

Author SHA1 Message Date
Jin Yu
19d803e89c bdev: add bdev timeout support
Add an API so that the user can enable/disable the bdev IO
timeout. Also, add the bdev io timeout handling callback.
So it means to let the upper user determine how to handle
the IO timeout scenario reset the device or abort the IO.

Change-Id: I9c7138ca46c74c045b687adab59a18d6bccc4996
Signed-off-by: Jin Yu <jin.yu@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/469228
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Alexey Marchuk <alexeymar@mellanox.com>
Community-CI: Broadcom SPDK FC-NVMe CI <spdk-ci.pdl@broadcom.com>
Community-CI: SPDK CI Jenkins <sys_sgci@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
2019-12-16 12:20:43 +00:00
Michael Haeuptle
53b92a6c18 nvme: allow setting of completion queue CDW0
This change allows setting of the NVMe completion queue
CDW0 in spdk_bdev_io_complete_nvme_status.

Before that change, handling of vendor specific NVMe IO
commands was limited since there wasn't a way to return
command specific info back to the initiator.

Change-Id: I250d5df3bd1e62ddb89a011503d42bd4c8390f9b
Signed-off-by: Michael Haeuptle <michael.haeuptle@hpe.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/470678
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
2019-10-24 18:02:38 +00:00
Evgeniy Kochetov
9522ed36f8 bdev: Add resize event
This patch adds RESIZE event to block device API.

Signed-off-by: Evgeniy Kochetov <evgeniik@mellanox.com>
Signed-off-by: Sasha Kotchubievsky <sashakot@mellanox.com>
Signed-off-by: Alexey Marchuk <alexeymar@mellanox.com>
Change-Id: Ic9fe359d19544fa0a48eed91216b858097e82995
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/468543
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
2019-10-02 22:30:29 +00:00
Wojciech Malikowski
45b5808eba lib/bdev: Added spdk_bdev_zone_append()
spdk_bdev_zone_append() allows writing to
open zone from multiple threads or from
single thread with queue depth greater than
one. Zone first logical address and number of
blocks to be written are provided by user.
Logical block address of written data is
returned in completion callback.

Change-Id: I4da994d72b7e0fe6621962e3b0f2380940ec3b45
Signed-off-by: Wojciech Malikowski <wojciech.malikowski@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/461614
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>
2019-10-01 14:48:54 +00:00
Wojciech Malikowski
2b16dcc740 lib/bdev: Added spdk_bdev_zone_management()
spdk_bdev_zone_management() allows to perform
management action on a zone. Zone is specified
by start logical block address. Available zone
actions: open, close, reset and finish.

Change-Id: Ie7eaed3e2cc7b9b49dd51ee2d6c28b4ef2f23eb9
Signed-off-by: Wojciech Malikowski <wojciech.malikowski@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/460647
Community-CI: Broadcom SPDK FC-NVMe CI <spdk-ci.pdl@broadcom.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
2019-09-24 16:39:27 +00:00
Wojciech Malikowski
02cabd9eb8 lib/bdev: Added spdk_bdev_get_zone_info() command
spdk_bdev_get_zone_info() is used for retriving
information about zones inside zoned namespace.

Change-Id: I8f931505245e984c0b1ee35ed6592c978ee47544
Signed-off-by: Wojciech Malikowski <wojciech.malikowski@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/460643
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2019-09-24 16:39:27 +00:00
Wojciech Malikowski
9b3ae37f33 lib/bdev: Added spdk_bdev_is_zoned() to bdev interface
This patch is entry point for extending bdev
interface to support devices with zoned namespace
semantics.

spdk_bdev_is_zoned() will allow user to check if
bdev is zoned bdev.

Change-Id: Id9ea9898d406d1d942bf3081b00ebcb574ac2b5e
Signed-off-by: Wojciech Malikowski <wojciech.malikowski@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/460641
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: Maciej Szwed <maciej.szwed@intel.com>
2019-09-24 16:39:27 +00:00
Wojciech Malikowski
18ed0c7f6b lib/bdev: spdk_bdev_get_write_unit_size() interface
Added write_unit_size field to bdev structure.
It describes required number of logical blocks
for write operation. For legacy bdevs this value
will be equal to logical block size.
For bdevs working on top of Open Channel/Zoned
Namespace SSDs or RAID 5 volumes write size unit
could be greater than logical block size and
upper layer should perform write operations
with size of multiple of write unit size.

Change-Id: I55eb6687912a7d0d1157874b2778e7d6c2d44e37
Signed-off-by: Wojciech Malikowski <wojciech.malikowski@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/463802
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
Reviewed-by: Maciej Szwed <maciej.szwed@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Community-CI: Broadcom SPDK FC-NVMe CI <spdk-ci.pdl@broadcom.com>
2019-09-20 20:19:40 +00:00
Maciej Szwed
79ed1ba18d bdev: Add spdk_bdev_open_ext function
This patch adds new interface for opening bdev and
implements new style remove event. With that changes
user can be notified about different types of events
that occur in regards to bdev. spdk_bdev_open_ext
function uses bdev name as an argument instead of bdev
structure to remove race condition where user gets
the bdev structure and bdev is removed after getting
that structure and before open function is called.

spdk_bdev_open is now deprecated.

Signed-off-by: Maciej Szwed <maciej.szwed@intel.com>
Change-Id: I44ebeb988bc6a2f441fc6a0c38a30668aad999ad
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/455647
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Broadcom SPDK FC-NVMe CI <spdk-ci.pdl@broadcom.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
2019-08-26 19:07:56 +00:00
Ben Walker
75b4f332f4 bdev: All bdevs now have a UUID.
For devices that don't have a UUID, the UUID is generated at
registration time. That means that some devices will not have the same
UUID from run to run, but this seems no worse than having no UUID at
all.

Change-Id: Icf6b8517ffcffabafa2b73176dc03d896d0017fe
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/459604
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
2019-07-10 01:59:05 +00:00
Maciej Szwed
1900c8c261 bdev: Move spdk_bdev declaration higher in the bdev.h file
It is required for upcoming patches.

Signed-off-by: Maciej Szwed <maciej.szwed@intel.com>
Change-Id: I836a1118309cc3ef4168d834697109200cf18553

Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/455646
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
2019-06-11 18:06:58 +00:00
Konrad Sztyber
58663640d2 lib/bdev: separate metadata buffer IO functions
This patch adds *_with_md family of functions allowing for IO with
metadata being transferred in a separate buffer.

Change-Id: I842d5a00a532cf5d0b0f0738535ea46903674140
Signed-off-by: Konrad Sztyber <konrad.sztyber@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/451465
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
2019-06-03 23:35:42 +00:00
Ben Walker
84850dacd7 bdev: Add a zero copy I/O path
Add a ZCOPY operation to obtain buffers that represent
data regions on the backing block device.

Change-Id: Ie941c16ee051d0009e3888b52b8f41773bba47b3
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/386166
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2019-04-23 18:38:39 +00:00
Darek Stojaczyk
f93b6fb0a4 bdev: defer unregister untill *all* descriptors are closed
We used to wait only for those descriptors which
specified the hotremove notification callback. The
bdev could've been removed before the descriptor
was closed and the subsequent spdk_bdev_close would
simply segfault.

This patch modifies spdk_bdev_unregister to always
wait for all descriptors to be closed before actually
unregistering the bdev. This consolidates the bdev
unregister behavior for descriptors with and without
the hotremove callback.

Change-Id: I9b358209c6abd301b6fe8660e27bc6fa4ef485d6
Signed-off-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/450175
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2019-04-23 17:06:37 +00:00
Shuhei Matsumoto
a18c0acd8c bdev: Increase the size of small and large buffers to store DIF
Increase the size of small and large buffers in the bdev layer
to store DIF. Increase is the amount necessary to store 16 byte
metadata to the block formatted with 512 + 16. 512 + 16 is the
current maximum ratio of metadata per block.

This change will be done in the iSCSI library in the next patch
and other libraries may be done later.

Hence add and use an new macro SPDK_BDEV_BUF_SIZE_WITH_MD(x) for
convenience.

Change-Id: I4b5498f56c9baf3e3ed93dd1c757998d7ce65141
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/444558
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2019-03-13 01:40:02 +00:00
Shuhei Matsumoto
fb16799191 bdev: Add spdk_bdev_get_data_block_size API.
iSCSI target will need to get data block size except for metadata.
Other SPDK application may need to get the same information
future. Hence this patch adds an new API spdk_bdev_get_data_block_size
to bdev layer. In the header file, spdk_bdev_get_data_block_size
is located next to spdk_bdev_is_md_interleaved to avoid confusion
by new users.

Change-Id: I0fd2a6d0bcf6a4c18c583f70d96cc5035fc57fe9
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/445082
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: wuzhouhui <wuzhouhui@kingsoft.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2019-03-07 07:03:27 +00:00
Shuhei Matsumoto
f4e58a003a lib/bdev: Expose enabled DIF check types of bdev.
This patch is for DIF check types.

Add enum spdk_dif_check_type to DIF library.
Add a field dif_check_flags to struct spdk_bdev and add
spdk_bdev_is_dif_check_enabled to bdev APIs.

Added enum is intended to improve usability. If no enum, the
caller will have to get raw data of flags and mask each bit.

Change-Id: Ia46a37a9684dc968dcc51963674f0a9963e0cd4d
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-on: https://review.gerrithub.io/c/443339
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2019-02-08 23:37:13 +00:00
Shuhei Matsumoto
7bb007d206 lib/bdev: Expose DIF type and location of bdev.
This patch is for DIF settings.

Add fields dif_type and dif_is_head_of_md to struct spdk_bdev and
add APIs spdk_bdev_get_dif_type and spdk_bdev_is_dif_head_of_md to
bdev APIs.

The fields dif_type and dif_is_head_of_md are added to the JSON
information dump.

Change-Id: I15db10cb170a76e77fc44a36a68224917d633160
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-on: https://review.gerrithub.io/c/443184
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2019-02-08 23:37:13 +00:00
Shuhei Matsumoto
139da44c43 lib/bdev: Expose metadata size and setting of bdev
To support DIF, bdev will need to expose the following information:
- Metadata format
 - Block size
 - Metadata size
 - Metadata setting (interleave or separate)
- DIF settings
 - DIF type 1, 2, or 3
 - DIF location
- DIF check types
 - Guard check
 - Reference tag check
 - Application tag check

This patch is for the metadata format. Subsequent patches will do for the DIF
setting and DIF check types.

Add fields, md_len and md_interleave, to struct spdk_bdev and add APIs,
spdk_bdev_get_md_size and spdk_bdev_is_md_interleaved, to bdev APIs.

The fields, md_len and md_interleave, are added to the bdev JSON infomation dump.

DIF will be used only in the NVMe bdev module and the upcoming virtual
DIF bdev module first. But additional required storage by md_len and md_interleave
will be very small and they are simple. Hence add them to struct spdk_bdev simply.

Change-Id: I4109f6a63e6f0576efe424feb0305a9a17b9b2e8
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-on: https://review.gerrithub.io/c/443183
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2019-02-08 23:37:13 +00:00
GangCao
316cb3b150 QoS/Bdev: add the Read/Write separate bandwidth rate limits
This patch adds the support of read and write separate
bandwidth rate limits control with the configuration file.

Below is the example (in MiB) for the configuration section:

[QoS]
  Limit_Read_BPS Malloc0 100
  Limit_Write_BPS Nvme0n1 200

Change-Id: I0221516ce70c3fbb07b9e80c1c814ed5ba271c88
Signed-off-by: GangCao <gang.cao@intel.com>
Reviewed-on: https://review.gerrithub.io/c/416672
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
2019-01-22 23:21:43 +00:00
Piotr Pelplinski
8a3620ffe0 histograms: add histograms to bdev layer
Signed-off-by: Piotr Pelplinski <piotr.pelplinski@intel.com>
Change-Id: I677f0b368447fc928cba318c2771e64156ace416
Reviewed-on: https://review.gerrithub.io/c/433619
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>
2019-01-18 18:58:52 +00:00
Yanbo Zhou
814f633153 bdev: add unmap I/O in bdev_io_stat
There are some patches to linux kernel for separating
out discard IOs that are written to /proc/diskstats and
the various /sys/block/*/stat files. The following additional
fields were added to these files:

Filed 12 -- # of discards completed
Filed 13 -- # of discards merged
Filed 14 -- # of sectors discarded
Filed 15 -- # of millisecond spent discarding

SPDK could provide these raw information to bdev_io_stat. Users
can use these information to calculate more states of block device.

Signed-off-by: Yanbo Zhou <yanbo.zhou@intel.com>
Change-Id: I517d67f0ff0159baf04e24732a8fd0ccefcb9c46
Reviewed-on: https://review.gerrithub.io/c/439057
Reviewed-by: wuzhouhui <wuzhouhui@kingsoft.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
2019-01-09 20:57:34 +00:00
GangCao
7d030ef7fc QoS/Bdev: add the QoS related structure and enumeration
This patch is to introduce the specific QoS related structure
and the enumeration for types of QoS rate limits. Later new
types of QoS rate limits can be supported easily.

Change-Id: Idb8d2e7627fd145bf2b0ddb296c968b6b068f48c
Signed-off-by: GangCao <gang.cao@intel.com>
Reviewed-on: https://review.gerrithub.io/424459
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
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>
2018-10-02 22:10:13 +00:00
Ben Walker
898739fbac bdev: Enforce that spdk_bdev_close() is called on same thread as open()
spdk_bdev_close() must be called on the same thread as
spdk_bdev_open(). Further, the remove callback on the
descriptor will also be run on the same thread as
spdk_bdev_open().

Change-Id: I949d6dd67de1e63d39f06944d473e4aa7134111b
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/424738
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: GangCao <gang.cao@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
2018-09-06 20:59:05 +00:00
Jim Harris
ba38785b7e bdev: remove get_bdevs_config RPC
This RPC does not work for a lot of bdev types.  For
example, NVMe namespaces and virtio scsi LUNs are not
explicitly constructed by an RPC - they are indirectly
constructed by an RPC associated with an NVMe controller
or virtio-scsi controller.

While here, remove spdk_bdev_config_json.  It was
only created to facilitate this get_bdevs_config RPC.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I537166d8f91ab458bd2000859d74f7254bfc9c0a

Reviewed-on: https://review.gerrithub.io/424584
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Pawel Wodkowski <pawelx.wodkowski@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
2018-09-05 19:46:17 +00:00
Seth Howell
dd9cd4352d bdev: add tracking for time spent processing I/O.
Two extra fields are added to the iostat rpc.
1. io_time. The amount of time since queue depth tracking was
enabled that has been spent on I/O processing.
2. weighted_io_time. Incremented each time this bdev's queue depth is
polled by the amount of time spent processing I/O since the last polling
event times the measured queue depth.

Change-Id: Ie70489ec24dee83f3eeac8f4f813ec7074ff458f
Signed-off-by: Seth Howell <seth.howell@intel.com>
Reviewed-on: https://review.gerrithub.io/419031
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2018-07-31 23:26:07 +00:00
Ben Walker
a1ec258ac7 Clean up some incorrect Copyright statements
Daisuke Aoyama originally contributed to istgt, the
iSCSI target in FreeBSD. The SPDK iSCSI code is
originally derived from that. Due to copy and paste,
some incorrect copyright attributions have been added
to other files that do  not derive from istgt, so
this patch removes those.

It is doubtful, at this point, that there is any code
whatsoever that remains from the original istgt, but
we can revisit that at a later time.

Change-Id: I207e1e6b99d271e2f12690be90a96f7d0c113af7
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/420679
Tested-by: SPDK CI Jenkins <sys_sgci@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>
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
2018-07-30 16:29:38 +00:00
Seth Howell
760b868aa8 bdev: add ability to track bdev queue depth.
This change includes a function to enable this feature on a per-bdev
basis. The new information stored in the bdev includes the following:

measured_queue_depth: The aggregate of the outstanding oparations from
each channel associated with this bdev.
period: The period at which this bdev's measured_queue_depth is being
updated.

With this information, one could calculate the average queue depth and
the disk utilization of the device

Change-Id: Ie0623ee4796e33b125504fb0965d5ef348cbff7d
Signed-off-by: Seth Howell <seth.howell@intel.com>
Reviewed-on: https://review.gerrithub.io/418102
Chandler-Test-Pool: 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>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
2018-07-12 23:27:27 +00:00
Jim Harris
32d7c91cbc bdev: add spdk_bdev_queue_io_wait()
This function is intended to be used when an spdk_bdev
I/O operation (such as spdk_bdev_write or spdk_bdev_write_blocks)
fails due to spdk_bdev_io buffer exhaustion.  The caller
can queue an spdk_bdev_io_wait structure on the calling thread
which will be invoked when an spdk_bdev_io buffer is available.

While here, turn off error messages in bdev.c related to
spdk_bdev_io pool exhaustion, since we now have an API designed
to gracefully recover from it.

Also modify bdevperf as an example of how to use this new API.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: Ia55f6582dc5a8d6d8bcc74689fd846d742324510

Reviewed-on: https://review.gerrithub.io/415074
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Ziye Yang <optimistyzy@gmail.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
2018-06-20 17:41:47 +00:00
Jim Harris
052c4aff53 doc: fix a bunch of parameter-related Doxygen comments
There are still a small handful of Doxygen warnings
remaining, but this fixes most of what was left.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I3f8bf3efad2382faf1e6d09f85d802e0ce0bb23d

Reviewed-on: https://review.gerrithub.io/415857
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>
2018-06-19 17:29:06 +00:00
Jim Harris
ddc63f077a bdev: change spdk_bdev_free_io return type to void
Change the checks to asserts instead.  No callers ever
checked the return codes, and if they did, there's
nothing they can do to recover from an error status.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I96d6804d61dfbf6030b3cc78ea59981301417421

Reviewed-on: https://review.gerrithub.io/415539
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
2018-06-19 07:28:20 +00:00
Jim Harris
b10f6b1c8c bdev: add Doxgyen group tags to mark bdev_io_submit functions
This will be useful for some upcoming patches that refer to
functions that can submit an spdk_bdev_io.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: If9b97d53e32d3198f3ef4f2d69f9fafea7a16bf2

Reviewed-on: https://review.gerrithub.io/415033
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: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
2018-06-14 14:57:11 +00:00
Jim Harris
58528ca799 bdev: move spdk_bdev_set_qos_limit_iops declaration
This function was logically out of place a bit - it split
up all of the functions that can submit an spdk_bdev_io.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: Ied601034d7cc73092b62537f1178337dafdb62c2

Reviewed-on: https://review.gerrithub.io/415030
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: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
2018-06-14 14:57:11 +00:00
Jim Harris
7409664cae bdev: clarify errnos that spdk_bdev I/O routines can return
Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I59229c5499f50a2522a93832c22756156ec1a1a8

Reviewed-on: https://review.gerrithub.io/414893
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
2018-06-14 14:57:11 +00:00
Jim Harris
503cddac70 bdev: add global structure for bdev_io options
Currently this just includes the overall size of the
spdk_bdev_io pool and the size of the per-thread
spdk_bdev_io caches.

Later patches will allow configuring these via
INI config file and JSON-RPC.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I7e235ee6d2d7123d8460eeacde999c7b51017c43

Reviewed-on: https://review.gerrithub.io/414710
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: Dariusz Stojaczyk <dariuszx.stojaczyk@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
2018-06-13 00:38:41 +00:00
Yanbo Zhou
cfbae9c23b include/bdev.h: add comments for callback functions
Change-Id: Ie7234178306cb83f1c9c2838d483fdc8eb8dbb47
Signed-off-by: Yanbo Zhou <yanbo.zhou@intel.com>
Reviewed-on: https://review.gerrithub.io/407682
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
2018-06-01 20:15:36 +00:00
Daniel Verkamp
2ee95af0fd bdev: stop zeroing data in spdk_bdev_get_io_stat()
This will allow multiple independent callers to request I/O statistics
without stepping on each other (previously the stats would be reset on
each request, which only works with a single caller).

This also means that we can now allow requesting stats while the VTune
integration is enabled.

Change-Id: Ia9d4d6fd37fa66b3671cd33b3183c90524f955bd
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/412257
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: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2018-05-24 22:05:48 +00:00
Yanbo Zhou
64ccd4b95b bdev: a new public function to get the I/O statistics of bdev
Add a new function and its RPC caller. By using it, we can
get the statistics of all the bdevs or the specified bdev.

Meanwhile, with this patch, the open source tool 'sysstat/iostat'
can support for SPDK. The 'iostat' tool can call this function to
get the statistics of all the SPDK managed devices via the rpc
interface.

Change-Id: I135a7bbd49d923014bdf93720f78dd5a588d7afa
Signed-off-by: Yanbo Zhou <yanbo.zhou@intel.com>
Reviewed-on: https://review.gerrithub.io/393130
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Dariusz Stojaczyk <dariuszx.stojaczyk@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
2018-05-23 17:49:21 +00:00
Ben Walker
fa68a0fdbd bdev: Make QoS structure a separate allocation
Future changes will rely on the ability to atomically
swap this data structure out.

Change-Id: I77b93252df63155692271b5665cc040cb83a33d0
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/409224
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
2018-05-08 16:57:06 +00:00
Andrey Kuzmin
d5a9fca816 Make iteration over I/O types safe against further type additions.
Change-Id: If4ec9fe2f49f68ef7a7434cd2b4a0c55979ac869
Signed-off-by: Andrey Kuzmin <andrey.v.kuzmin@gmail.com>
Reviewed-on: https://review.gerrithub.io/408706
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
2018-04-24 21:53:25 +00:00
GangCao
b8681aa659 bdev/qos: add the QoS information on RPC get_bdevs interface
Change-Id: I515a08ce95ffd6fea4d5f4fab42e6d09bcdd11f7
Signed-off-by: GangCao <gang.cao@intel.com>
Reviewed-on: https://review.gerrithub.io/393278
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>
2018-04-20 13:34:44 -04:00
GangCao
ffba4fdbc3 bdev/qos: add RPC method to set QoS at runtime
This patch adds a new RPC method to configure QoS on bdev
at runtime.

For example:

set_bdev_qos_limit_iops Malloc0 20000 --> Enable QoS on this
block device with 20000 IOPS rate limiting.

Change-Id: I1ee8b313b769fb5a664820f4ba827e0230be4b5d
Signed-off-by: GangCao <gang.cao@intel.com>
Reviewed-on: https://review.gerrithub.io/393255
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>
2018-04-19 13:47:54 -04:00
Pawel Wodkowski
e7cb376aad subsystem,bdev: rework RPC JSON config dump
Changes:
- change write_config_json to return void as return value is useless.
- int spdk_bdev_config_json() -> void spdk_bdev_subsystem_config_json()
- int spdk_bdev_write_config_json -> void spdk_bdev_config_json()

Change-Id: I46e2e974abada0df67c07ba961543900f8334a8d
Signed-off-by: Pawel Wodkowski <pawelx.wodkowski@intel.com>
Reviewed-on: https://review.gerrithub.io/405052
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
2018-03-27 02:57:28 -04:00
Pawel Wodkowski
5ffa5c003a bdev: introduce 'get_bdevs_config' RPC call
Write information needed to recreate each bdev.

Change-Id: I3d2b24fd4aaa8b98ec558d864cc28b55a899452f
Signed-off-by: Pawel Wodkowski <pawelx.wodkowski@intel.com>
Reviewed-on: https://review.gerrithub.io/401217
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2018-03-23 03:57:44 -04:00
Daniel Verkamp
364d4fdfe0 bdev: add spdk_bdev_get_uuid() function
Add a generic way to get a UUID from a bdev.

For now, malloc and null bdevs generate random UUIDs, and no other bdev
types report a UUID.

Change-Id: Id9608c8c1b3ce3f1783e7f74bef96d44cd5d98a7
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/402177
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>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
2018-03-08 10:49:51 -05:00
Pawel Wodkowski
2939b715d0 bdev: rename 'dump_config_json' to 'dump_info_json'
Unfortunatly not all bdevs produce its configuration in responce to
get_bdevs RPC call (eg nvme is producing tons of additional
informations). To not breake any existing scripts rename
'dump_config_json' to 'dump_info_json' instead of reworking those
callbacks. Next patches will introduce real 'dump_config_json' handlers
and API

Change-Id: If9c1a4ab864791b24a5f7d022e970cd65990ffc0
Signed-off-by: Pawel Wodkowski <pawelx.wodkowski@intel.com>
Reviewed-on: https://review.gerrithub.io/401216
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
2018-02-26 15:49:51 -05:00
Isaac Otsiabah
a4f3920d51 bdev: Added latency to channel statistics
Modified include/spdk/bdev.h and include/spdk_internal/bdev.h
add data members to capture statistics information. Modified
lib/bdev/bdev.c to calculate read/write latency.

Change-Id: Idcd55dd2e88c4b308e016f16ced53720256c79e3
Signed-off-by: Isaac Otsiabah <iotsiabah@us.fujitsu.com>
Reviewed-on: https://review.gerrithub.io/390654
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>
2018-01-30 12:41:41 -05:00
Dave Boutcher
f58bc31505 include: wrap header files in extern "C" for c++
Update all the header files in include/spdk to include
extern "C" declarations.

Change-Id: I43299f68e962d0df18c1b23fbbaa19bc924fcb96
Signed-off-by: Dave Boutcher <dboutcher@ocient.com>
Reviewed-on: https://review.gerrithub.io/390896
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Dariusz Stojaczyk <dariuszx.stojaczyk@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2017-12-07 19:13:47 -05:00
Ben Walker
44770c2a11 bdev: Remove poller abstraction
Use the new one from io_channel.h.

Change-Id: I7bf6729caf6eeebcb58450a36119601957ad5da4
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/388290
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>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
2017-11-28 15:29:35 -05:00
Young Tack Jin
d0a4c8e0a9 bdev/nvme: support meta data on vendor specific commands
spdk_bdev_nvme_io_passthru_md() is verified on QEMU NVMe
and will be verified on Cosmos mini OpenSSD.

Change-Id: Ib759b6b6095deaa4ae7cf746f3a241f678295605
Signed-off-by: Young Tack Jin <youngtack.jin@circuitblvd.com>
Reviewed-on: https://review.gerrithub.io/387114
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2017-11-20 19:26:48 -05:00