Commit Graph

68 Commits

Author SHA1 Message Date
Jim Harris
ac1aa04ba7 blob: add _spdk_bs_load_fail helper routine
This eliminates a bunch of code duplication.  This also
fixes a couple of places where the ctx->bs was not being
freed in the load fail path.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: Ie6b0a4a653b5c80edf14086801b75457852a4736

Reviewed-on: https://review.gerrithub.io/391693
Reviewed-by: Paul Luse <paul.e.luse@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>
2017-12-19 12:41:26 -05:00
Maciej Szwed
13ece6a735 blob: add spdk_bs_create_blob_ext
Signed-off-by: Maciej Szwed <maciej.szwed@intel.com>
Change-Id: Iba33c55f129c60fad2d58f5254dec5c54ed56805
Signed-off-by: Piotr Pelplinski <piotr.pelplinski@intel.com>
Reviewed-on: https://review.gerrithub.io/388217
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2017-12-19 11:55:36 -05:00
Jim Harris
feba13bbba blob: do not decrement ref on close until it is done
This ensures we do not end up with a racing close v.
delete.  If we decrement the ref up front, we could
start the close process (which may include persisting
metadata) and then also allow a delete operation to
start.  It is safer to wait until the close operation
is done before decrementing the ref count, because then
it will eliminate this race condition (the delete op
would immediately fail).

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: Iad7fd8320d2c9b56f3c4fce054bcb6271e19ad38

Reviewed-on: https://review.gerrithub.io/391493
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
2017-12-15 12:28:44 -05:00
Jim Harris
751691d24c blob: use spdk_bs_open_blob from spdk_bs_delete_blob
This ensures all blob-loading functionality goes through
the single spdk_bs_open_blob function which will simplify
some upcoming changes around managing global metadata
state from multiple threads.

This will also help prevent races where a delete operation
has started followed by an open on the blob that is
being deleted.  Those specific changes will be in an
upcoming patch.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I17e995145ab23068b816b44c33483b0708f5f563

Reviewed-on: https://review.gerrithub.io/391486
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
2017-12-15 12:28:44 -05:00
Jim Harris
2ba5607ee8 blob: handle FLAGS descriptor during dirty shutdown recovery
Found during unit testing for blobid_mask coming in a future
patch - the unit test will be added as part of that future
patch.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: Iecdde6ba16c5af9caf59214f328ddc22aae71e94

Reviewed-on: https://review.gerrithub.io/391692
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>
2017-12-15 12:28:44 -05:00
Jim Harris
ae5a01dd9f blob: change spdk_bs_iter_next parameter to spdk_blob *
Similar to previous change, the ** paradigm is a bit
problematic for asynchronous routines that could fail.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: Ife7748280482356c4c51a796817b71cd7bc7e479

Reviewed-on: https://review.gerrithub.io/391483
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>
2017-12-15 12:28:44 -05:00
Jim Harris
e734bb9f9f blob: change spdk_blob_close parameter to spdk_blob *
Using the ** paradigm is a bit problematic for asynchronous
routines that could fail.  Currently we were inconsistent in
that some error paths would zero the pointer while others
did not.  So make this just a plain pointer, which simplifies
the API and its implementation.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I67147931c6e8350896a4505022a6a314655de3d3

Reviewed-on: https://review.gerrithub.io/391482
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>
2017-12-15 12:28:44 -05:00
Jim Harris
40af6d6fd1 blob: always rely on spdk_bs_open_blob in _spdk_bs_iter_cpl
We do not need to separately call _spdk_blob_lookup() in
_spdk_bs_iter_cpl() - spdk_bs_open_blob() does this
already.  This minimizes the number of entry points to
_spdk_blob_lookup() which will be important with some
upcoming changes around multiple threads performing
metadata operations.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I032cd55c862267298cbe1674dd13d7a83eef7c0f

Reviewed-on: https://review.gerrithub.io/391474
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
2017-12-15 12:28:44 -05:00
Jim Harris
e0e8f53cc0 blob: remove md_channel
Remove the metadata channel, and instead use the same
channel for metadata and data operations on the metadata
thread.

This prepares for future changes which will allow
for metadata operations on any thread - not just the
thread where spdk_bs_load() or spdk_bs_init() was
called.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I6b11a58fcb237a9a7603841d118b3729d83c6c98

Reviewed-on: https://review.gerrithub.io/391311
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
2017-12-13 13:06:16 -05:00
Jim Harris
d52dbda288 blob: rename bs_md functions
As part of clarifying the API and preparing for some
future changes, rename the following functions:

spdk_bs_md_create_blob => spdk_bs_create_blob
spdk_bs_md_open_blob => spdk_bs_open_blob
spdk_bs_md_delete_blob => spdk_bs_delete_blob
spdk_bs_md_iter_first => spdk_bs_iter_first
spdk_bs_md_iter_next => spdk_bs_iter_next

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I86bf792717b68379484a6108396bb891fe1c221e

Reviewed-on: https://review.gerrithub.io/391031
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
2017-12-13 13:06:16 -05:00
Jim Harris
7932847300 blob: remove spdk_bs_io_flush_channel
This function was a nop and is not needed.

lvol was calling this function when an lvol bdev
gets a FLUSH I/O, but that is not needed either.  So
lvol will now report it does not support flush.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I92df83243f7ebce81c69040a8874891dc2ffc961

Reviewed-on: https://review.gerrithub.io/391023
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
2017-12-13 13:06:16 -05:00
Jim Harris
8b76ace55f blob: remove spdk_bs_[un]register_md_thread from public API
The implementations in blobstore.c still remain for now, but
those will be removed after some upcoming changes which will
eliminate a global md thread and instead allow caller to
specify an I/O channel for each blobstore level API call.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: Idf800a7f061ffc9c42488951262e28e660871356

Reviewed-on: https://review.gerrithub.io/391020
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
2017-12-12 18:36:18 -05:00
Jim Harris
2c3591f183 blob: rename spdk blob metadata functions
spdk_bs_md_resize_blob => spdk_blob_resize
spdk_bs_md_sync_blob => spdk_blob_sync_md
spdk_bs_md_get_xattr_value => spdk_blob_get_xattr_value
spdK_bs_md_get_xattr_names => spdk_blob_get_xattr_names
spdk_blob_md_set_xattr => spdk_blob_set_xattr
spdk_blob_md_remove_xattr => spdk_blob_remove_xattr
spdk_bs_md_close_blob => spdk_blob_close

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I99b593c03bc61354ba6aa5a446b0fc82df1e9ce2

Reviewed-on: https://review.gerrithub.io/391006
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
2017-12-12 18:36:18 -05:00
Jim Harris
b9b0fee224 blob: decouple spdk_blob from its actual data
Moving forward, the spdk_blob returned to users will
actually be an I/O channel - not the blob structure
itself.  So rename the existing spdk_blob to spdk_blob_data.
spdk_blob_data will continue to contain global state for
the blob.  In the future spdk_blob will point to an
I/O channel for the blob - for now it effectively still
points to the spdk_blob_data, but by changing the
structure names here it will reduce the code churn in
future patches.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I7d0cbc0553f68f96c24173c833091a80d058eb89

Reviewed-on: https://review.gerrithub.io/390900
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>
2017-12-11 15:33:35 -05:00
Jim Harris
99a1020f0a blob: move data_ro check into rw_iov function
This keeps the top level functions as simple pass-throughs
which will simplify some future commits.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I6578a1440d0404f600c055a5e37f28468b633d6f

Reviewed-on: https://review.gerrithub.io/390899
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>
2017-12-11 15:33:35 -05:00
Daniel Verkamp
ea1c15791f log: rename SPDK_TRACE_* to SPDK_LOG_*
Disambiguate the log components from the trace functionality
(include/spdk/trace.h).

The internal spdk_trace_flag structure and related functions will be
renamed in a later commit - this is just a find and replace on
SPDK_TRACE_* and SPDK_LOG_REGISTER_TRACE_FLAG().

Change-Id: I617bd5a9fbe35ffb44ae6020b292658c094a0ad6
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/376421
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>
2017-12-07 12:23:19 -05:00
Ben Walker
2b768821bf blob: spdk_bs_destroy now only zeroes the super block
The function just needs to zero out metadata so that the
blobstore is effectively destroyed. If the user wants
to unmap the rest of the disk after the blobstore is
destroyed, they are free to do so. On future initializations
of blobstores the code will do the unmapping, so performance
is not impacted.

While here, implement the zeroing using the new
write_zeroes functionality instead of allocating a buffer
full of zeroes.

Change-Id: I7f18be0fd5e13a48b171ab3f4d5f5e12876023bc
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/390307
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
2017-12-06 17:21:46 -05:00
Jim Harris
d12ba75bd1 blob: add per-blob feature flags
Similar flags will be added at the blobstore level in a future
patch.

This allows backwards compatibility - i.e. allow older blobstore
applications to open blobstores created by newer blobstore
applications with new features.  Any blob's using a new feature
should have an associated flag set in one of three new flag masks:

- invalid: if a bit is set in this mask that the application is not
	   aware of, do not allow the blob to be opened
- data_ro: if a bit is set in this mask that the application is not
	   aware of, allow the blob to be opened, but do not allow
	   write I/O nor any operation that changes metadata
- md_ro:   if a bit is set in this mask that the application is not
	   aware of, allow the blob to be opened for performing any
	   kind of I/O, but do not allow any operation that changes
	   metadata

While here, bump SPDK_BS_VERSION to 3.  We intend this to be the
last change made to SPDK_BS_VERSION - future versioning will be
done via blobstore or per-blob feature flags instead.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: If059e38bfffbeec25c849a7629a81193b12302c4

Reviewed-on: https://review.gerrithub.io/388703
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
2017-12-04 12:07:21 -05:00
Jim Harris
75cb2da951 blob: fail _spdk_blob_parse_page on bad md descriptors
Currently there are a bunch of asserts() on metadata
descriptors - change these to fail the blob parsing
instead.

While here also return -ENOMEM if any of the memory
allocations fail.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: Ie37b73c57b304d05a45d10a8d33bcc1d47e7a1be

Reviewed-on: https://review.gerrithub.io/388702
Reviewed-by: Maciej Szwed <maciej.szwed@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
2017-11-29 17:25:34 -05:00
Jim Harris
f2223d7d21 blob: add data_ro and md_ro flags to spdk_blob
data_ro means that write, write_zeroes and unmap operations are not
allowed.

md_ro means that resize, set_xattr and remove_xattr are not
allowed.

There is no code yet that can activate this - it is coming in a future
patch.  Two usages are planned though:

1) a user explicitly marks a blob as read-only - this is persisted so that
   future loads of the blob will ensure the blob cannot be modified - neither
   metadata nor data
2) a future feature flag framework (how's that for alliteration) may allow
   a blob to be opened, but not allow metadata modifications, if there are
   feature flags set in the blob's or blobstore's metadata that the
   application does not understand

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I247fd900430c56f7176edfb80dddd5a1a6c8dc87

Reviewed-on: https://review.gerrithub.io/388663
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>
2017-11-29 17:25:34 -05:00
Maciej Szwed
b9d123b814 blobstore: on init write zeroes to metadata and unmap rest
Currently on blobstore creation we use write zeros everytime.
Some drives does not support write zeros, but support unmap.
We should do write zeroes only on metadata and try to unmap
data clusters

Signed-off-by: Maciej Szwed <maciej.szwed@intel.com>
Change-Id: Iae36c1ccacc08340e79ad40c4c9a2c53dda920ba
Reviewed-on: https://review.gerrithub.io/387152
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
2017-11-22 14:12:29 -05:00
Maciej Szwed
f6e075cd54 blobstore: add unmap and write zeros support
Signed-off-by: Maciej Szwed <maciej.szwed@intel.com>
Change-Id: If89275acfb1560982e332148a99ed3c83f8cb34f

Reviewed-on: https://review.gerrithub.io/387609
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
2017-11-21 13:28:22 -05:00
GangCao
58fb5a17f0 blob: handle the case that channel is not created
There is case like no memory to create the channel.
Needs to handle this properly.

Change-Id: I5d13d18037e6aa8f057769b1ef345f45597b22af
Signed-off-by: GangCao <gang.cao@intel.com>
Reviewed-on: https://review.gerrithub.io/386016
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>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2017-11-14 15:43:08 -05:00
Tomasz Zawadzki
5eb52b951c blobstore: store usable number of clusters in blobstore structure
At the moment there was no way to a user of blobstore api to know,
how many clusters are availible to him. Total_clusters describes
number of clusters for metadata and user data.

New field added total_data_clusters, keeping number of clusters
that can be used to create blobs - meaning just user data.

Signed-off-by: Maciej Szwed <maciej.szwed@intel.com>
Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: I60555217644557410844f74628375a6b46fd2ac7
Reviewed-on: https://review.gerrithub.io/385633
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>
2017-11-10 17:24:31 -05:00
Piotr Pelplinski
9d17cbdd23 blob: fix bug when specifing cluster size < 4096
Signed-off-by: Piotr Pelplinski <piotr.pelplinski@intel.com>
Change-Id: I59cbef4ce1bfe8af113c66c2c9cb9f208440c0aa

Reviewed-on: https://review.gerrithub.io/383887
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>
2017-10-26 14:21:22 -04:00
Tomasz Zawadzki
79745b8c8b blobstore: do not allow for spdk_bs_unload if blobs are still open
It is possible that a user will call spdk_bs_unload() with blobs
list not-empty. Instead of just asserting that, now the call fails
with appropriate error.

Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: I83818453d6c90ff9b5bf657c90e12b2f9d5ca013
Reviewed-on: https://review.gerrithub.io/383220
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
2017-10-23 15:31:48 -04:00
Seth Howell
3f9cbe513b blob: add write_zeroes support
Unmap does not guarantee that erased blocks will return all zeroes.
using write_zeroes when unmapping metadata gives the
desired behavior for a blob.

Only metadata pages will be cleared with write_zeroes in this patch;
blob data clusters will still call unmap.  This behavior may be made
configurable in a later patch (to allow the user to request zeroing of
clusters rather than just unmapping).

Change-Id: I1b210abac110867ce703bcfdeb634eb45aa9d5c9
Signed-off-by: Seth Howell <seth.howell@intel.com>
Reviewed-on: https://review.gerrithub.io/372004
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
2017-10-23 11:50:16 -04:00
Tomasz Zawadzki
2df9f03c47 blobstore: New API call to destroy blobstore [1/3]
Currently exposed API allows to load/unload and to
initialize blobstore on a device.

A spdk_bs_destroy() call is added in order to reach
functional parity with spdk_bs_init(). It was not
possible to remove blobstore from device from within
SPDK previously.

spdk_bs_destroy() takes blobstore pointer as argument
(instead of bs_dev), because blobstore has to be already
loaded to destroy it.

Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: I2c493a4407868fcf08fd1766a19fc8463f634ef5
Reviewed-on: https://review.gerrithub.io/382019
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>
2017-10-20 16:06:53 -04:00
Cunyin Chang
9f891d14ce blob: Make the files persisted cross power failure.
We only sync the metadata and data in the runtime of blobstore, which
means we only update the used md bitmap and used clusters bitmap in memory.
if the system crushed, we have no chance to sync the used md bitmap and
used clusters bitmap into disk, then next time when we try to load the
blobstore, all the data will lost, this patch add the logic to recover the
valid data from last dirty shutdown. We will go through all the metadata pages
to find all valid data and rebuild them.

Change-Id: Ieb7c5f932206b1b68fdde0cee35f2d2cb3a4f309
Signed-off-by: Cunyin Chang <cunyin.chang@intel.com>
Reviewed-on: https://review.gerrithub.io/376470
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>
2017-10-19 15:13:58 -04:00
Jim Harris
e739a50f48 blob: initialize super_blob and bstype during load
A recent patch did some refactoring on how the superblock is
written out - it introduced a bug where on load we would
write out INVALID for super_blob id and a null bstype when
clearing the clean bit.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I1d6256e35030645b3e8fda83bfe0f74aeb635733

Reviewed-on: https://review.gerrithub.io/383129
Reviewed-by: Maciej Szwed <maciej.szwed@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
2017-10-19 13:23:58 -04:00
Maciej Szwed
eb8b1e20a9 blobstore: add bstype to blobstore super block
Introducing bstype as a way to identify and verify
 blobstore type.

Signed-off-by: Maciej Szwed <maciej.szwed@intel.com>
Change-Id: I50267b5408625be10fe0c146ae329016d5509b4a
Reviewed-on: https://review.gerrithub.io/380476
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
2017-10-17 13:36:03 -04:00
Cunyin Chang
5bf109d507 blob: Optimization of data structure and functions for bs load and unload.
This patch reduce duplicate data structure and make some functions common
for both bs load and unload porcess in the future.

Change-Id: I40b2135e89a705aa5073c1ded4c7b28be4b32f6e
Signed-off-by: Cunyin Chang <cunyin.chang@intel.com>
Reviewed-on: https://review.gerrithub.io/381912
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>
2017-10-13 14:49:30 -04:00
Cunyin Chang
1ae9dd67b6 blob: Add helper function for set up bitmask.
Change-Id: I1afcfc3523b20bdfd60d7e6787350dfa4880bc50
Signed-off-by: Cunyin Chang <cunyin.chang@intel.com>
Reviewed-on: https://review.gerrithub.io/380853
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>
2017-10-05 16:47:45 -04:00
Paul Luse
721695e121 blob: fix issue with blobid handling
Fixes github issue #29.

Because of how we handle the blobid and pagenum in blobstore,
it was possible to have blobstore inadvertently open the wrong
blob if open is provided a blobid where the lower 32 bits match
an existing blob but the upper 32 are clear.

Patch does the following:
- removes assert() that caught this on MD load and replace with
an error given that this condition can be induced via the API
- cleanup of pagenum and blobid conversion/handling to make it
clearer how they're related and converted
- new UTs that would have failed w/o the new check in place

Change-Id: I2b49b237922b3b8cfc4df296f5bc20195e41dc41
Signed-off-by: Paul Luse <paul.e.luse@intel.com>
Reviewed-on: https://review.gerrithub.io/380872
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>
2017-10-05 16:46:47 -04:00
Tomasz Zawadzki
3735f2d08e blobstore: verify options passed to spdk_bs_init
Three checks are added to options passed to spdk_bs_init,
with appropriate errors returned:
- whether any of the options is set to 0
- device size has to be bigger than cluster size
- pages reserved for metadata exceed total number of clusters

Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: Idee3c194b653e737ec7c7a768f1973ff72452c5b
Reviewed-on: https://review.gerrithub.io/379676
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
2017-09-27 13:18:18 -04:00
Tomasz Zawadzki
9a58c40eba blobstore: always destroy bs_dev during spdk_bs_init()
Now bs_dev is destroyed only in two instances:
- within spdk_bs_init() on failure path
- vbdev_lvs_create() if spdk_lvs_init() errors out,
before even calling spdk_bs_init()

Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: I7b8af39fbe83907b0c47797f0f55ca3b941729d9
Reviewed-on: https://review.gerrithub.io/379848
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
2017-09-27 13:18:18 -04:00
Paul Luse
130d278adf blob: defer calling unload callback until dev is destroyed
Fixes condition where blobstore was prematurely calling the
application callback on spdk_bs_unload(), if the application
tries to do something too quickly bad things happen.

To avoid application changes with how the g_devlist_mutex is
held, it is no longer held while calling
_spdk_io_device_attempt_free() because the app unload CB is
called from that function and may want to call
spdk_io_device_unregister() from its unload CB.  So the lock
is now held and releases strictly around the list its
protecting which allows the CB from _spdk_io_device_attempt_free()
to be called without issue.

Change-Id: Ib451cfe6b33ea0c3f9e66c86785316f9d88837c7
Signed-off-by: Paul Luse <paul.e.luse@intel.com>
Reviewed-on: https://review.gerrithub.io/377872
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>
2017-09-26 19:10:28 -04:00
Tomasz Zawadzki
d959fecdd5 blobstore: do not _spdk_bs_free before io devices are registered
io_device and their channels are created after _spdk_bs_alloc finishes.
Until they are, only free() is required on allocated bs structure.

Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: Ie00126cdaa2bb5cd77cad2dec89d670734367b49

Reviewed-on: https://review.gerrithub.io/379675
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>
2017-09-22 15:35:32 -04:00
Cunyin Chang
29bcd5a90d blob: Add support for crc of super block.
Change-Id: I424833a0af6e5e8265c03c168b9dfdbae1a49cd8
Signed-off-by: Cunyin Chang <cunyin.chang@intel.com>
Reviewed-on: https://review.gerrithub.io/378233
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>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2017-09-20 19:56:57 -04:00
Cunyin Chang
13ecee44a4 blob: Add support for crc of metadata pages.
This patch add support crc for metadata pages, we will also
add crc for supper block, used md and used clusters bitmask
pages in the following patches.

Change-Id: Ie36fcc16b39296d06721f1f8eb5689260194c558
Signed-off-by: Cunyin Chang <cunyin.chang@intel.com>
Reviewed-on: https://review.gerrithub.io/377901
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>
2017-09-15 17:13:14 -04:00
Cunyin Chang
e87808c4fb blobstore: sync super block after set the "clean" as 0.
The system could crash anytime, we need sync the "clean" flag
into disk as soon as we load the blobstore. Then if the system crashed,
we will find the blobstore is not clean shutdown next time when we load
the blobstore, and we could run the recover process then.

Change-Id: I6189678e970ffe979a224e02be6cede0ee44dde8
Signed-off-by: Cunyin Chang <cunyin.chang@intel.com>
Reviewed-on: https://review.gerrithub.io/376276
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>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
2017-09-11 15:44:38 -04:00
Daniel Verkamp
d92f0f75ca log: rename SPDK_TRACELOG to SPDK_DEBUGLOG
This matches the name to the behavior and prepares for addition of a new
log macro for "info" log level.

Change-Id: I94ccd49face4309d3368e399528776ab140748c4
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/375833
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>
2017-08-29 13:25:58 -04:00
Tomasz Zawadzki
2fbe26160f blobstore: defer destroying bs_dev
This patch delays destruction of bs_dev till after md_target io_device
is unregistered. Otherwise bs_dev would no longer exist when destroying
attached channels.

Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: I6e526e3f65f7f5bca0617888be06a5296422f8e0
Signed-off-by: Maciej Szwed <maciej.szwed@intel.com>
Reviewed-on: https://review.gerrithub.io/371885
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>
2017-08-22 18:19:00 -04:00
Jim Harris
179ed697b3 blob: add readv/writev support
Most of the work here revolves around having to split
an I/O that spans a cluster boundary.  In this case
we need to allocate a separate iov array, and then
issue each sub-I/O serially, copying the relevant
subset of the original iov array.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I0d46b3f832245900d109ee6c78cc6d49cf96428b

Reviewed-on: https://review.gerrithub.io/374880
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>
2017-08-22 18:19:00 -04:00
Paul Luse
26e9b6eafa blob: code cleanup
We use the size of a md page struct in a lot of places, use a #define
instead.

Change-Id: I522897c883bfc8b241c6da9b726d92f58faedd63
Signed-off-by: Paul Luse <paul.e.luse@intel.com>
Reviewed-on: https://review.gerrithub.io/375040
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>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
2017-08-22 17:17:07 -04:00
Paul Luse
a5014efc2b blob: add check for supported underlying dev block lengths
Fail spdk_bs_init() if the dev being used has an
LBA size that is larger than a metadata page or not evenly
divisible by the size of a metadata page.

Change-Id: I0e0ca747ecd5b6039c20fb6a885382bde4527158
Signed-off-by: Paul Luse <paul.e.luse@intel.com>
Reviewed-on: https://review.gerrithub.io/374182
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>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
2017-08-22 17:17:07 -04:00
Paul Luse
442ee2303e blobstore: fix issue with reading in superblobid from disk
Completion routine for reading superblock was not updating
the bs struct with the superblob id thus it would have
failed to be persistent from the application's perspective.

Change-Id: I4aa51ebe73315e9be7e08f82340b03f0e3836df7
Signed-off-by: Paul Luse <paul.e.luse@intel.com>
Reviewed-on: https://review.gerrithub.io/373406
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>
2017-08-11 12:58:47 -04:00
Dariusz Stojaczyk
73358c99e1 util/nvme: added io_device unregister callback
Patch afe860ae deferred freeing the io_device. However, for nvme, the
io_device context (spdk_nvme_ctrlr) is still being destructed before
io_channels are destroyed, causing segfaults on hotremove.

This patch defers io_device context destruction and fixes nvme
hotremove.

Fixes: afe860aeb1 ("channel: Correctly defer unregisters if channels exist")
Fixes: 5533c3d208 ("util: defer put_io_channel")

Change-Id: I7af699174cac0c6c6a6faa2cc65418c47347eb9a
Signed-off-by: Dariusz Stojaczyk <dariuszx.stojaczyk@intel.com>
Reviewed-on: https://review.gerrithub.io/370459
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>
2017-07-20 16:07:02 -04:00
Daniel Verkamp
4671369ab2 blobstore: fix declaration after statement
Change-Id: I1439b471b101b390fcbef558039f2a543f465acd
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/367121
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>
2017-06-27 13:57:06 -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