Commit Graph

74 Commits

Author SHA1 Message Date
Shuhei Matsumoto
84e64cc9d7 lib/scsi: Pass SCSI task to SCSI layer to get DIF context
By the recent refactoring, SCSI task is configured when getting
DIF context from SCSI layer. Passing not CDB and offset separately
but SCSI task to SCSI layer is more concise and do in this patch.

In iscsi_send_datain(), we have to update task->scsi.offset for the
case that data is split into a sequence, but the update is no harm
because task has completed what it must to do.

Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: I153352dfa7aa7325db4452f03d863df11b3e0cfa
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/472510
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: Paul Luse <paul.e.luse@intel.com>
2019-11-21 08:01:29 +00:00
Shuhei Matsumoto
1dc9a7627f lib/scsi: Check pending tasks for the SCSI device only from the specific initiator
Refine the public helper function spdk_scsi_dev_has_pending_tasks to
be able to check tasks only from the specific initiator.

Then use the function in iSCSI target to fix the issue.

Besides add UT code to test the updated spdk_scsi_dev_has_pending_tasks().
Automated multi hosts test is much better but some UT code will be of any
help to mitigate the risk of degradation.

Fixes #985

Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: I50afb940de7174360c8a30479450850002a3e525
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/471337
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: Changpeng Liu <changpeng.liu@intel.com>
2019-10-18 17:30:13 +00:00
Shuhei Matsumoto
37bdd0e87f scsi: Add data offset to DIF context separately from start block address
This patch uses the change by the last patch to initialize DIF
context in SCSI layer. Besides this patch changes the name of a
parameter from offset to data_offset to clarify the meaning.

Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: I54bf1168ec5959432aa15dae0360c0640138b033
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/457541
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
2019-06-11 18:53:58 +00:00
Shuhei Matsumoto
73204fe2e5 dif: Add data offset to DIF context separately from start block address
Data offset are intended to correspond to DATAO in NVMe/TCP and
Buffer Offset in iSCSI.

Previously for iSCSI, buffer offset had been merged to start block
address, but passing buffer offset separately from start block address
clarifies the logic more.

On the other hand, for NVMe/TCP, passing DATAO separately from start
block address will be critically important because DATAO will bave any
alignment and will be necessary to use for not only reference tag
but also guard computation.

This patch adds data_offset to struct spdk_dif_ctx and adds it to the
parameters of spdk_dif_ctx_init(). ref_tag_offset is also added to struct
spdk_dif_ctx and it is computed by dividing data_offset by data_block_size
and is used to compute reference tag.

The next patch will use this change when getting DIF context in SCSI.

Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: Id0e12ca9b1dc75d0589787520feb0c2ee0f844a5
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/457540
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
2019-06-11 18:53:58 +00:00
Shuhei Matsumoto
56d8b78576 lib/scsi: Make spdk_scsi_dev_destruct asynchronous
This is the end of the patch series. After this patch,
delete_target_node RPC will wait for the completion of
removal of the SCSI device and then free the iSCSI target.

SCSI device holds passed callback and calls it in free_dev().
free_dev() is ensured to be called after all iSCSI sessions
are closed. So iSCSI target resource can be freed safely
after that.

Change-Id: I25921b4014207092b7b3845dfeae58bcdffa2edc
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/450607
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
2019-04-22 18:22:59 +00:00
Shuhei Matsumoto
9470d65e8d lib/scsi: Add lun to the names of descriptors and callback for LUN
The next patch will add the function ponter typedef
spdk_scsi_dev_destruct_cb for SCSI device destruction.
Hence add lun to the names of descriptors and callback for SCSI
LUN for clarification.

This patch doesn't change any behavior.

Change-Id: I73f2bce9129f7a6f16770ab6ed18428b16589108
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/450883
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
2019-04-22 16:00:42 +00:00
Shuhei Matsumoto
12ab86e24d scsi: Add helper functions to convert LUN ID between structure and integer
SPDK iSCSI target didn't convert LUN ID from integer to structure
when it sends R2T PDUs. The next patch will fix the issue. Introducing
helper functions into SCSI library and using them will be clean. Hence
this patch adds two helper functions to convert LUN ID between structure
and integer.

The logic of helper functions is derived simply from the current
implementation in SPDK.

Change-Id: I114b546cfcb44109d6cd131a1fa972f4d6bfea38
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/449962
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2019-04-04 04:40:28 +00:00
Shuhei Matsumoto
8697bce7af scsi: Add an API to return DIF context of bdev and CDB
This patch adds an API spdk_scsi_bdev_get_dif_ctx().

spdk_scsi_bdev_get_dif_ctx() decodes opcode in CDB, and if opcode
is read or write block commands, it gets LBA and use the lower
32bits of LBA as Reference Tag. It gets DIF information from
specified bdev next. Then it sets all to DIF context and return.

spdk_scsi_bdev_get_dif_ctx() is exported to iSCSI through
spdk_scsi_lun_get_dif_ctx().

Change-Id: Id8aac164c48e9e9d4ff7cfc9fa81bb5090f3e187
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/446224
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>
2019-03-08 01:21:26 +00:00
Shuhei Matsumoto
728972cdf3 scsi: Set TMF code prior to calling spdk_scsi_dev_queue_mgmt_task
By subsequent patches for iSCSI, spdk_scsi_dev_queue_mgmt_task()
will not be called directly from the function that knows TMF code,
and currently setting TMF code to SCSI task is done in
spdk_scsi_dev_queue_mgmt_task().

Hence after subsequent patches for iSCSI, to hand off TMF code to
SCSI task, any dynamic context will be required.

To avoid the dynamic context, extract setting TMF code from
spdk_scsi_dev_queue_mgmt_task() and put appropriate place for
each call of spdk_scsi_dev_queue_mgmt_task().

Additionally, in spdk_abort_transfer_task_in_task_mgmt_resp(),
ref_task_tag is got from PDU but getting it from SCSI task is
much easier. Hence get ref_task_tag from SCSI task in the callback.

Change-Id: I7add9290598d2df7cfcf1506ec75d74c70c0f236
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-on: https://review.gerrithub.io/436643
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
2018-12-10 20:34:11 +00:00
Shuhei Matsumoto
ba1811556b scsi: Add scsi_task_process_abort for aborted SCSI tasks.
Subsequent patches will have to abort SCSI tasks in the iSCSI
layer. But spdk_scsi_task_set_status() API is not public API.

spdk_scsi_task_process_null_lun() is existing public API but
LUN NOT SUPPORTED is not appropriate for those cases.

Hence add an new public API spdk_scsi_task_process_abort().

Change-Id: I5b488e902ccd790ace2936b3e6ebfeb124fa429a
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-on: https://review.gerrithub.io/436080
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>
2018-12-10 20:34:11 +00:00
Changpeng Liu
38dfce0428 scsi: add iSCSI initiator port TransportID
SCSI persistent reservation feature need to get the TransportID
for the I_T nexus, so when creating initiator port we also
set the TransportID according to the specification, while here,
we use the format code 0x1 for the TransportID.

Change-Id: Ib45bec04bf0e33e2b0f611dd3846597f4176d069
Signed-off-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-on: https://review.gerrithub.io/435212
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>
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
2018-12-05 16:04:06 +00:00
Shuhei Matsumoto
cefab5d647 iscsi: Support hot removal of LUN based on LUN open/close
When hot removal of a LUN is started, callback is called for each
iSCSI connection which accesses the LUN. Callback checks all transfer
tasks complete and then close the LUN.

If the connection clears all transfer tasks before getting all responses
to them from the initiator, the initiator continues to retry data write.
Hence the connection have to wait until all transfer tasks complete.

Change-Id: Iad9063673cfedbd78758890d55a4254512e4fca4
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-on: https://review.gerrithub.io/417199
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: Ben Walker <benjamin.walker@intel.com>
2018-07-17 17:43:28 +00:00
Shuhei Matsumoto
fec7c88e45 scsi: Enforce to open LUN and then alloc IO channel by using descriptor
Use a descriptor got by opening the LUN to allocate IO channel of the LUN.
This requires opening the LUN is done before allocating IO channel of the
LUN.

Use the descriptor to free IO channel of the LUN too.

Additionally, assert is added to the close LUN function to check if
IO channel is freed before the last close LUN function is called.

Change-Id: Iafb2f9ce790fff25801ea45b3286f3e26943807b
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-on: https://review.gerrithub.io/417807
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: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2018-07-17 17:43:28 +00:00
Shuhei Matsumoto
c740e56928 scsi: Open/close a LUN to remove it safely for iSCSI multi connections
To remove a LUN safely for iSCSI multiple connections, each connection
must return I/O channel after checking completion of all tasks.

Open/close mechanism provides a way to register callback to do it.

Registered callback will be called after checking completion of
outstanding tasks.

Making the close LUN function public is necessary to support hot removal.

Change-Id: I06d50d016b0b7aba0d081da226f5b2e0c911629e
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-on: https://review.gerrithub.io/417198
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: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
2018-07-17 17:43:28 +00:00
Tomasz Zawadzki
f0ec7bc6e7 scsi/bdev: use spdk_bdev_queue_io_wait()
New function was added in bdev layer to allow
handling spdk_bdev_io buffer exhaustion.

This patch adds that functionality to scsi bdev.

Change-Id: Ia6a5be871ae09a4d1166991925f0a44f3b355bdd
Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-on: https://review.gerrithub.io/417032
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
2018-07-10 21:17:38 +00:00
Shuhei Matsumoto
1e5705ee6f scsi: Make scsi_lun_free_io_channel public
IO channel for LUN is used for hot removal as it is emphasized in the
previous patches.

In iSCSI, a SCSI device has multiple LUNs. So freeing only the IO channel
of a LUN must be possible.

Change-Id: I5b355200b4e173512a5aa4b7351534faf8839eef
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-on: https://review.gerrithub.io/417197
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
2018-07-02 21:29:50 +00:00
Jim Harris
d5e76d83cb doc: fix some doxygen warnings
These were related to recent scsi.h and sock.h
patches.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I17db2eefcbf3ade7a5baad68fb2e12a9474c1ce0

Reviewed-on: https://review.gerrithub.io/416034
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>
2018-06-19 21:23:06 +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
Yanbo Zhou
3fe6763242 include/scsi.h: add comments for public APIs
Change-Id: Id315ae334062ee46d89c236cc5da7b42ec92eaac
Signed-off-by: Yanbo Zhou <yanbo.zhou@intel.com>
Reviewed-on: https://review.gerrithub.io/411213
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>
2018-06-18 22:23:43 +00:00
Shuhei Matsumoto
03a52d0d32 iscsi: Factor out copy scsi status when it is not good
Change-Id: I5042df8c25a2d2f6591a2a922e22407904b04bab
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-on: https://review.gerrithub.io/414561
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: Jim Harris <james.r.harris@intel.com>
2018-06-11 22:23:55 +00:00
Shuhei Matsumoto
f2554ee973 scsi: Change spdk_scsi_task_alloc/free_data() from public to private
This patch does a little cleanup of SPDK SCSI layer APIs.

spdk_scsi_task_alloc_data() is only used in spdk_scsi_task_scatter_data().
spck_scsi_task_free_data() is only used in spdk_scsi_task_put().

The latter was called in UT code but this can be removed without any
degradation.

SPDK SCSI layer is relatively matured and these will not be used
out of lib/scsi/task.c.

Additionally memory leak detected by ASAN is fixed in this patch.

Change-Id: I8eff7b4dbfc307c211087734649a9b9b10555f8d
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-on: https://review.gerrithub.io/413872
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2018-06-06 17:09:22 +00:00
Daniel Verkamp
8a6ba58cb4 scripts/check_format: check for spaces before tabs
Automatically detect more whitespace errors.

All existing cases are fixed; only whitespace change (verify with
diff -w) except for one comment style fixup in include/spdk/nvme.h.

Change-Id: If750e54b9c8e3421ea6feda5f20184a31431631e
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/402360
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
2018-03-05 11:09:13 -05:00
Shuhei Matsumoto
3b3c6002c9 iscsi: Add LUN to an existing target (not runtime)
Removing an LUN from an existing iSCSI target is possible by
removing the corresponding BDEV. However adding an LUN to an
existing iSCSI target is not possible yet.

Add a new function spdk_iscsi_tgt_node_add_lun() and related
functions first toward supporting this function.

JSON-RPC for this operation will be submitted an another patch.

Informing the newly added LUN to the initiator is not included
in this patch. Hence this operation is possible only for any
inactive target.

Change-Id: I3a28f4d75a17126e49c9d12ce64c3ad68f231840
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-on: https://review.gerrithub.io/385180
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
2018-01-17 12:41:29 -05:00
Shuhei Matsumoto
583e969922 scsi: remove lun name
There is no need to keep a lun name anymore - we always
use the bdev name as the lun name so it is not providing any
additional value. This also keeps us from associating
the same bdev with different LUNs on different iSCSI target
nodes or vhost-scsi controllers.

Side effect of this change is:

1) Use "bdev_name" across the APIs to make it more clear
   what these names refer to.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: I3d42fde22087352ce1d5dc80178bd8c5cac8cb7c
Reviewed-on: https://review.gerrithub.io/390843
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
2018-01-11 18:37:34 -05:00
Daniel Verkamp
d57306d8eb scsi: pass only task to SCSI exec functions
Retrieve LUN data directly from struct spdk_scsi_lun rather than copying
them into struct spdk_scsi_task, and access the LUN via the task->lun
pointer.

Change-Id: Id8745f116bc559fb2f9e58811c2b9781c8cbdae8
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/393709
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: <shuhei.matsumoto.xt@hitachi.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
2018-01-05 13:49:05 -05:00
Jim Harris
738dc70dc1 scsi: remove description for spdk_scsi_lun
The existing description was written long ago and is
not even close to being valid now.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I758da93bfbffc2edb28b7d421b5f061cbd893a39

Reviewed-on: https://review.gerrithub.io/393692
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: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: <shuhei.matsumoto.xt@hitachi.com>
2018-01-05 12:19:56 -05:00
Daniel Verkamp
e45437aba7 scsi, iscsi: move task->parent to iSCSI task
The SCSI layer no longer needs to know about the parent/subtask
relationship maintained by iSCSI.

Change-Id: Ia6f7c5367c5b656bd7521ed1abb6d0f713a0500b
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/393697
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: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: <shuhei.matsumoto.xt@hitachi.com>
2018-01-05 00:01:37 -05:00
Daniel Verkamp
85f55b7383 scsi, iscsi: move lun_id field to iSCSI task
This is not used in the generic SCSI layer.

Fixes: 8eba104b73 ("iscsi: Fix the bug for hotplug when read IO is
running.")

Change-Id: Ie0715ea0ee5084eaf1321ba2f65f7bfa674c663a
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/393211
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2018-01-03 12:09:57 -05:00
Daniel Verkamp
c2009e9e85 scsi: remove spdk_scsi_dev_print() function
Replace the single call to spdk_scsi_dev_print() with a reimplementation
using public SCSI API functions, and also using the SPDK logging
framework instead of printf().

Change-Id: Ifa455f9e6a4a07a35d5dec311a61e9a8afaa0227
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/391320
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
2017-12-12 18:04:20 -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
Shuhei Matsumoto
0e5b81b3d7 scsi: remove port from scsi_dev dynamically
Current implementation supports only adding port to scsi_dev.
This change is required to support dynamic remapping of portals.

Change-Id: Idce49aeae43c8861ebe2807df853694f7bacf884
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-on: https://review.gerrithub.io/379931
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>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
2017-10-12 15:46:14 -04:00
Tomasz Zawadzki
b1ccfaca01 subsystem: remove fini return code
Closing the framework has to go through all subsystems
without failure, so return codes are unnecessary.

Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: I53c9b4df12d2357e641130869f398b18637e6ff7
Reviewed-on: https://review.gerrithub.io/381681
Reviewed-by: Dariusz Stojaczyk <dariuszx.stojaczyk@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
2017-10-10 10:56:34 -04:00
Tomasz Zawadzki
1b46bec729 scsi: increase max lun name length
This patch increases maximum length of lun name.
16 was not long enough considering that lvol names can get
up to 48 (lvs uuid + lvol id).

Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: Ic3557a9b3588f8d87f4188ecfaef7d23016a3516
Reviewed-on: https://review.gerrithub.io/377345
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>
2017-09-06 16:26:30 -04:00
Cunyin Chang
8eba104b73 iscsi: Fix the bug for hotplug when read IO is running.
after move the spdk_iscsi_conn_handle_queued_tasks() into
spdk_iscsi_conn_execute(), we should handle the situation when the
lun has been removed and then try to access spdk_iscsi_conn_handle_queued_tasks().

Change-Id: I9ac7a5203b49274347c9ee9fbf19558ca87557ed
Signed-off-by: Cunyin Chang <cunyin.chang@intel.com>
Reviewed-on: https://review.gerrithub.io/371813
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2017-08-01 21:35:54 -04:00
Jim Harris
be9a3b9f69 bdev: pass descriptors for I/O operations
This enables checking permissions - for example,
spdk_bdev_write will fail if the descriptor was not
created with write permissions.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I68b65a560f471f2e0f71a7f42cfa6689b911110f

Reviewed-on: https://review.gerrithub.io/369493
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>
2017-07-14 13:31:30 -04:00
Jim Harris
dd06e98d4a bdev: rename blockdev instances to bdev
This includes file names, functions, #defines, etc.
There are still a few uses of "blockdev" outside of
include/ and lib/ - these can be handled later.

This preps for a future patch to consolidate vbdev
modules and bdev modules into just bdev modules.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I70e575709ae1b0a116b08515fd38ae793de05377

Reviewed-on: https://review.gerrithub.io/369325
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>
2017-07-14 13:31:30 -04:00
Dariusz Stojaczyk
fa15dc611a scsi: removed dev->maxlun field
This variable was misleading and unnecessary. Replaced all it's
occurences with SPDK_SCSI_DEV_MAX_LUN.

Change-Id: Iaaf9ed5efb60f9a89585121d2fbec7b43c3723e9
Signed-off-by: Dariusz Stojaczyk <dariuszx.stojaczyk@intel.com>
Reviewed-on: https://review.gerrithub.io/368115
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Pawel Wodkowski <pawelx.wodkowski@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2017-07-12 13:16:55 -04:00
Dariusz Stojaczyk
57f9221fab scsi: added spdk_scsi_dev_has_pending_tasks()
Added new function in preparation to implementing device hotremove.

Change-Id: I5b85f76f543b882acf3b0fe40c9e92125594b257
Signed-off-by: Dariusz Stojaczyk <dariuszx.stojaczyk@intel.com>
Reviewed-on: https://review.gerrithub.io/366725
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>
2017-07-05 17:11:55 -04:00
Dariusz Stojaczyk
72343bcf23 scsi: added lun hotremove callback
Added optional callback inside scsi lun hotremove, so that higher-level
abstraction can be notified about hotremove.

Change-Id: I5f1bd8160e3d770a484068dd73928bc2b64c876f
Signed-off-by: Dariusz Stojaczyk <dariuszx.stojaczyk@intel.com>
Reviewed-on: https://review.gerrithub.io/367309
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>
2017-06-30 16:32:47 -04:00
Ben Walker
4185205540 scsi: Remove cb_event. It is no longer necessary.
This is an artifact from a past design. There is no longer
any reason to create an event here - the bdev layer will
correctly queue events and call completions on the correct
thread.

Change-Id: I145dab4046899834c0449ec7380dcbb28215b493
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/364831
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>
2017-06-22 10:47:31 -04:00
Ben Walker
c9f8765a69 scsi: Move event subsystem initialization to event_scsi
This removes the event framework dependency from the
scsi library entirely.

Change-Id: I73546d06721487f86c4c6a3be24474a5677bdb41
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/365728
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>
2017-06-20 16:58:35 -04:00
Ben Walker
5015ec9ce8 scsi: Add a separate subsystem library
This separates the scsi library from the event framework's
subsystem mechanism.

Change-Id: Iac2bbdb861e28ee9af0f13bc7187ac24279d0f5b
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/365284
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
Tomasz Zawadzki
5e132b6b7a scsi: Set proper transport protocol id
This patch adds property of transport protocol id to spdk_scsi_dev.
This allows to change it depending on which appliation is using
the device. Previously only iSCSI was used for all.

Setting protocol id is done at the time when device is added to
vhost controller (vhost) or target node (iSCSI).

Please note that for SPDK vhost SAS protocol id is used,
as that is what kernel vhost reports as well.

Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: I455a856c5d7796a749b6650fee0218d526e094ed
Reviewed-on: https://review.gerrithub.io/362864
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>
2017-06-01 12:10:22 -04:00
Daniel Verkamp
f66a0c9e34 scsi: pass management function as a parameter
Specify the function as a parameter to spdk_scsi_dev_queue_mgmt_task.
This makes the API clearer by making it explicit that the management
function is required for management tasks.

Change-Id: I92d893aadb6faebea81dd79729894d2c2fddf088
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2017-05-18 13:47:42 -07:00
Daniel Verkamp
19a9871495 scsi: remove spdk_scsi_task::owner_task_ctr
The SCSI library already provides a callback when the task is released
(free_fn), so the user can update their own task counter.

Change-Id: I7fb13f6fff66dbba2315fd03fb06e49f793be123
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2017-05-15 10:12:42 -07:00
Daniel Verkamp
7145cf62c6 scsi: set free_fn in spdk_scsi_task_construct()
The task free callback function is required, so make its assignment part
of task construction.

Change-Id: I2f5fdf73b064653ee85b4e7961cb1653a0a4107d
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2017-05-15 10:12:42 -07:00
Daniel Verkamp
45cab335bc include: move standard includes into spdk/stdinc.h
This is the first step toward isolating standard C and POSIX headers
into a single replaceable header file.

Change-Id: I527297f5e7260b01103018ad3429922962ee9add
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2017-05-08 10:11:01 -07:00
Daniel Verkamp
2621c7bdc4 scsi: move bytes_completed to iSCSI task
Change-Id: Iff345f555f94a34fa4a6f86bc11efea704e39735
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2017-05-04 10:10:47 -07:00
Daniel Verkamp
7e7ed7ec10 scsi: move data_out_cnt to iSCSI task
Change-Id: I550de37d5088e2273b9d53ab8a2d6134c486fba0
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2017-05-04 10:10:47 -07:00
Daniel Verkamp
d4da788057 scsi: move desired_data_transfer_length to iSCSI task
Change-Id: I425f9cc7c572b4d819d0aae370f7a96c57d6eac1
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2017-05-04 10:10:47 -07:00