ivampiresp/Spdk
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
b55efd2ac7
Spdk/lib/bdev/iscsi
History
Jim Harris 7717cfcacc bdev/iscsi: fix double spdk_bdev_module_finish_done() call 
bdev_iscsi_lun_cleanup() was not accounting for LUNs
getting cleaned up before the module_finish function
was called.  This resulted in the bdev/iscsi module
calling spdk_bdev_module_finish_done twice which
resulted in io_device_unregister not found errors and
possible seg faults.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I42c3e0af250e0abcea1cd88ffd3c041ebdaeea49
Reviewed-on: https://review.gerrithub.io/415372
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>
2018-06-15 20:57:08 +00:00
..
bdev_iscsi_rpc.c bdev/iscsi: add RPC support and cofnig dump 2018-06-05 17:52:06 +00:00
bdev_iscsi.c bdev/iscsi: fix double spdk_bdev_module_finish_done() call 2018-06-15 20:57:08 +00:00
bdev_iscsi.h bdev/iscsi: add RPC support and cofnig dump 2018-06-05 17:52:06 +00:00
Makefile bdev/iscsi: add RPC support and cofnig dump 2018-06-05 17:52:06 +00:00
README bdev: add iSCSI initiator bdev module 2018-03-21 20:35:42 -04:00

README 

This is a very rough initial cut at an SPDK iSCSI initiator bdev module.  It
only performs operations (connect, login, read cap, read/write).
But this passes basic verify tests with bdevperf and with fio.

Configuration file for iSCSI initiator is in the following format.
Note that the "/0" at the end means "LUN 0".

[iSCSI_Initiator]
  URL iscsi://127.0.0.1/iqn.2016-06.io.spdk:disk1/0 iSCSI0

To Do Items
===========
1) Create RPCs.
2) Use asynchronous polling for connect/login/disconnect.  Read/write is already
   using libiscsi event framework.
3) Choose initiator name as part of RPC configuration.  Currently this is hardcoded
   with g_initiator string.
4) Implement reset path.
5) Implement unmap path.
6) Use REPORT_LUNS to dynamically find all of the block devices attached to the
   iSCSI target node instead of hard-coding LUN 0.  This will need some extra
   investigation in libiscsi.  Currently the full URL is used which includes the LUN.
   Not sure yet how we can login to target node and then submit IO to different
   LUNs.  Let's treat this as low priority for now.