numam-spdk/lib/bdev/iscsi
Dariusz Stojaczyk 5a5630acb2 bdev/iscsi: unregister io_device on bdev destruction
Fixes a memory leak and a possible data race.

Change-Id: Ib094ca62e66d8d3a88b0acccc92e69214d413e72
Signed-off-by: Dariusz Stojaczyk <dariuszx.stojaczyk@intel.com>
Reviewed-on: https://review.gerrithub.io/420573
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>
2018-07-27 18:58:53 +00:00
..
bdev_iscsi_rpc.c rpc/bdev: construct RPC return a string instead array 2018-06-22 21:12:43 +00:00
bdev_iscsi.c bdev/iscsi: unregister io_device on bdev destruction 2018-07-27 18:58:53 +00:00
bdev_iscsi.h bdev: add delete_iscsi_bdev call 2018-06-22 17:24:18 +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

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.