Default 'unmap' option stays as it was.
'Write_zeroes' comes useful when one wants to make sure
that data presented from lvol bdevs on initial creation presents 0's.
'None' will be used for performance tests,
when whole device is preconditioned before creating lvol store.
Instead of performing preconditioning on each lvol bdev after its creation.
Change-Id: Ic5a5985e42a84f038a882bbe6f881624ae96242c
Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-on: https://review.gerrithub.io/c/442881
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>
At this times documentation give impression that decouple call
removes all dependencies for lvol. Meanwhile it only removes
a single one.
Change-Id: I2b769d47dc93a21a0331248e21059653bd741074
Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-on: https://review.gerrithub.io/c/442848
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>
Added set_read_only_lvol_bdev() RPC that marks
lvol bdev as read only.
This enables to create clones off of a base lvol,
without having to create additional lvol bdev with snapshot.
Change-Id: Ic20bbcd8fbebcef157acce44bfa1da035b0da459
Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-on: https://review.gerrithub.io/c/440534
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>
Change-Id: Ifff553ed70ce5aa8e7bdf6d8a8e9e9afb73e8a64
Signed-off-by: Chen Wang <chenx.wang@intel.com>
Reviewed-on: https://review.gerrithub.io/423497
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
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>
Information regarding decouple parent lvol bdev was missing
in documentation.
Change-Id: Ib1611efedc472cc37133a57aed41f6c2c0abbe1f
Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-on: https://review.gerrithub.io/419342
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
Change-Id: I21139603dce30a242e49b2fcc8c4152613369f44
Signed-off-by: Tomasz Kulasek <tomaszx.kulasek@intel.com>
Reviewed-on: https://review.gerrithub.io/413255
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>
Reviewed-by: John Kariuki <John.K.Kariuki@intel.com>
Reviewed-by: Maciej Szwed <maciej.szwed@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Signed-off-by: <tomaszx.kulasek@intel.com>
Change-Id: Ib3516b85a721363526deab14170da87a8d9232f1
Reviewed-on: https://review.gerrithub.io/415298
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>
Move several programmer guides into the correct section.
The blobstore programmer's guide is already linked from the Programmer
Guides section above; remove it from General Information.
Also add a link to the logical volumes documentation and rename it to
remove the "Introduction", since this doesn't fit with the naming of
other similar chapters.
Change-Id: I1eed7d2588851d67c067a2bcd568b3b071816679
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/413851
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>
Change-Id: I1cac468c58d84ed03bb646b8485e92fdb533049e
Signed-off-by: Tomasz Kulasek <tomaszx.kulasek@intel.com>
Reviewed-on: https://review.gerrithub.io/413254
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
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>
This is the first step toward fixing the behavior of the lvol bdev
module so that it handles spdk_bdev_unregister() correctly.
Currently, when an lvol bdev is unregistered, this causes the associated
lvol to be deleted; this isn't the desired behavior, since
spdk_bdev_unregister() is just meant to drop the currently-exposed bdev,
as in a hot-unplug event, not destroy the backing storage.
The current implementation of the new destroy_lvol_bdev method still
calls into the exsting (broken) spdk_bdev_unregister() path, but this at
least lets us fix the existing delete_bdev RPC callers that really
intended to destroy the lvol.
The next step is to make vbdev_lvol_destroy() call spdk_lvol_destroy()
instead of unregistering the bdev, which will require cleanup in the
generic lvol layer to remove the close_only flag.
Change-Id: Ic4cb51305d31f6d7366a82ba7bf7b19ebbcd3e9c
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/408084
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>
Signed-off-by: Maciej Szwed <maciej.szwed@intel.com>
Change-Id: Ib42a520b9ac2783c96dbe73d1f8b22a5ac9a5b74
Reviewed-on: https://review.gerrithub.io/407558
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>
Blobstore default cluster size is currently 4MiB,
but default lvol cluster size overrides it to 1GiB.
Additionally add -c flag in lvol tests to set cluster
size for tests.
1GiB was fine without thin provisioning, but we do not
want to allocate and copy 1GiB of data for newly allocated
clusters on thin provisioned logical volumes.
Note that 4MiB is same as default for Linux LVM.
lvol test case 601 had to be modified to create a malloc
LUN less than size of default cluster size. This test is
supposed to fail - without the change here, creating the
lvolstore would work, but the script still considered it a
PASS. Defer fixing that to a separate patch - for now just
keep the same test process.
Signed-off-by: Maciej Szwed <maciej.szwed@intel.com>
Change-Id: Ic05defbf8e641f613f0ec74175a37bc25986e496
Reviewed-on: https://review.gerrithub.io/397562
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>
Thin provisioning for lvol bdevs enabled starting with 4132ac5.
Unmap is now supported on lvol starting with patch cf6fe9b.
Change-Id: I10c47f9e1af31785caf27fd73750461c9cde57c4
Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-on: https://review.gerrithub.io/397573
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>
Signed-off-by: Piotr Pelplinski <piotr.pelplinski@intel.com>
Change-Id: I566a4d277ac1595fa7b4d630df52301a9abeec49
Reviewed-on: https://review.gerrithub.io/381629
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Signed-off-by: Piotr Pelplinski <piotr.pelplinski@intel.com>
Change-Id: I23e14bd1568dade96e5503598a3e360c951d6d78
Reviewed-on: https://review.gerrithub.io/369250
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>
