Spdk/iscsi at 6be654aad72fb9bc36ead924b671cbf2bfad0ebf - Spdk

History

Tomasz Zawadzki 6be654aad7 bdev: add delete_iscsi_bdev call Since delete_bdev should be used only for debug purpose, this patch adds delete call specific for iSCSI bdev. No changes in spdkcli, since it is not implemented yet. Tests unchanged, because test is only done by running bdevperf and exiting. Without time to delete_iscsi_bdev. Change-Id: I8341bfb65932a1deb1fb6463e11ef932d6f6d597 Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com> Reviewed-on: https://review.gerrithub.io/415678 Tested-by: SPDK Automated Test System <sys_sgsw@intel.com> Reviewed-by: Jim Harris <james.r.harris@intel.com> Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>		2018-06-22 17:24:18 +00:00
..
bdev_iscsi_rpc.c	bdev: add delete_iscsi_bdev call	2018-06-22 17:24:18 +00:00
bdev_iscsi.c	bdev: add delete_iscsi_bdev call	2018-06-22 17:24:18 +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

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.