Commit 8b38468d authored by Chunyang Hui's avatar Chunyang Hui Committed by Daniel Verkamp
Browse files

bdev/iscsi: Add unmap support for iscsi initiator 



Change-Id: I6dc83322385ecd332f6898f182192773824375cf
Signed-off-by: default avatarChunyang Hui <Chunyang.hui@intel.com>
Reviewed-on: https://review.gerrithub.io/417086


Tested-by: default avatarSPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: default avatarDaniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: default avatarBen Walker <benjamin.walker@intel.com>
parent a4d22f7b

lib/bdev/iscsi/bdev_iscsi.c

+24 −0
Original line number Diff line number Diff line
@@ -324,6 +324,24 @@ bdev_iscsi_flush(struct bdev_iscsi_lun *lun, struct bdev_iscsi_io *iscsi_io, uin 
	}

}



static void

bdev_iscsi_unmap(struct bdev_iscsi_lun *lun, struct bdev_iscsi_io *iscsi_io,

		 uint64_t lba, uint64_t num_blocks)

{

	struct scsi_task *task;

	struct unmap_list list[1];



	list[0].lba = lba;

	list[0].num = num_blocks;

	task = iscsi_unmap_task(lun->context, 0, 0, 0, list, 1,

				bdev_iscsi_command_cb, iscsi_io);

	if (task == NULL) {

		SPDK_ERRLOG("failed to get unmap_task\n");

		bdev_iscsi_io_complete(iscsi_io, SPDK_BDEV_IO_STATUS_FAILED);

		return;

	}

}



static int

bdev_iscsi_poll_lun(struct bdev_iscsi_lun *lun)

{
@@ -408,6 +426,11 @@ static void _bdev_iscsi_submit_request(void *_bdev_io) 
				 ISCSI_IMMEDIATE_DATA_NO,

				 bdev_io->u.bdev.offset_blocks);

		break;

	case SPDK_BDEV_IO_TYPE_UNMAP:

		bdev_iscsi_unmap(lun, iscsi_io,

				 bdev_io->u.bdev.offset_blocks,

				 bdev_io->u.bdev.num_blocks);

		break;

	default:

		bdev_iscsi_io_complete(iscsi_io, SPDK_BDEV_IO_STATUS_FAILED);

		break;
@@ -436,6 +459,7 @@ bdev_iscsi_io_type_supported(void *ctx, enum spdk_bdev_io_type io_type) 
	case SPDK_BDEV_IO_TYPE_READ:

	case SPDK_BDEV_IO_TYPE_WRITE:

	case SPDK_BDEV_IO_TYPE_FLUSH:

	case SPDK_BDEV_IO_TYPE_UNMAP:

		return true;



	default: