From: Nicholas Bellinger <nab@xxxxxxxxxxxxxxx>
Hi Jens, HCH & Co,
This -v2 series introduces target_iostate + target_iomem descriptors
that abstract what existing target backend drivers require in order
to process I/O, sync_cache, write_same and unmap via sbc_ops.
The purpose is to allow existing target backend drivers from within
/sys/kernel/config/target/core/ to be accessed externally outside
of the existing /sys/kernel/config/target/$FABRIC/ configfs layout,
to operate independently of se_cmd + SCSI specific dependencies.
Namely, it's intended for the newly released nvme-target code to
utilize existing target-core backend drivers + T10-PI logic, without
requiring consumers to be under /sys/kernel/config/target/$FABRIC/
configfs layout.
Also included is a prerequisite bug-fix for target-core, and IBLOCK
optimization for eliminating the internal memory allocation.
v2 changes:
- Convert sbc_ops->execute_unmap() capable backends to use
__blkdev_issue_discard() asynchronous completion.
- Convert IBLOCK to use inline bio + bvec, and use blk_poll()
following nvmet/io-cmd for I/O submission.
Please review,
--nab
Nicholas Bellinger (16):
target: Fix for hang of Ordered task in TCM
target: Add target_iomem descriptor
target: Add target_iostate descriptor
target: Add target_complete_ios wrapper
target: Setup target_iostate memory in __target_execute_cmd
target: Convert se_cmd->execute_cmd to target_iostate
target/sbc: Convert sbc_ops->execute_rw to target_iostate
target/sbc: Convert sbc_dif_copy_prot to target_iostate
target/file: Convert sbc_dif_verify to target_iostate
target/iblock: Fold iblock_req into target_iostate
target/sbc: Convert sbc_ops->execute_sync_cache to target_iostate
target/sbc: Convert sbc_ops->execute_write_same to target_iostate
target/sbc: Convert sbc_ops->execute_unmap to target_iostate
target: Make sbc_ops accessable via target_backend_ops
target/sbc: Convert ->execute_unmap to __blkdev_issue_discard
target/iblock: Convert to inline bio/bvec + blk_poll
drivers/infiniband/ulp/isert/ib_isert.c | 61 ++--
drivers/infiniband/ulp/srpt/ib_srpt.c | 6 +-
drivers/scsi/qla2xxx/qla_target.c | 64 ++---
drivers/scsi/qla2xxx/tcm_qla2xxx.c | 29 +-
drivers/target/iscsi/cxgbit/cxgbit_ddp.c | 8 +-
drivers/target/iscsi/cxgbit/cxgbit_target.c | 20 +-
drivers/target/iscsi/iscsi_target.c | 26 +-
drivers/target/iscsi/iscsi_target_datain_values.c | 18 +-
drivers/target/iscsi/iscsi_target_erl0.c | 24 +-
drivers/target/iscsi/iscsi_target_erl1.c | 8 +-
drivers/target/iscsi/iscsi_target_seq_pdu_list.c | 40 +--
drivers/target/iscsi/iscsi_target_tmr.c | 4 +-
drivers/target/iscsi/iscsi_target_util.c | 4 +-
drivers/target/loopback/tcm_loop.c | 2 +-
drivers/target/sbp/sbp_target.c | 8 +-
drivers/target/target_core_alua.c | 43 +--
drivers/target/target_core_alua.h | 6 +-
drivers/target/target_core_device.c | 24 +-
drivers/target/target_core_file.c | 148 +++++-----
drivers/target/target_core_iblock.c | 266 ++++++++----------
drivers/target/target_core_iblock.h | 5 -
drivers/target/target_core_internal.h | 1 +
drivers/target/target_core_pr.c | 68 ++---
drivers/target/target_core_pr.h | 8 +-
drivers/target/target_core_pscsi.c | 26 +-
drivers/target/target_core_rd.c | 44 +--
drivers/target/target_core_sbc.c | 321 +++++++++++++---------
drivers/target/target_core_spc.c | 47 ++--
drivers/target/target_core_transport.c | 272 ++++++++++--------
drivers/target/target_core_user.c | 41 +--
drivers/target/target_core_xcopy.c | 33 ++-
drivers/target/target_core_xcopy.h | 4 +-
drivers/target/tcm_fc/tfc_cmd.c | 14 +-
drivers/target/tcm_fc/tfc_io.c | 21 +-
drivers/usb/gadget/function/f_tcm.c | 50 ++--
drivers/vhost/scsi.c | 2 +-
include/target/target_core_backend.h | 30 +-
include/target/target_core_base.h | 76 +++--
include/target/target_core_fabric.h | 3 +-
include/trace/events/target.h | 4 +-
40 files changed, 1012 insertions(+), 867 deletions(-)
--
1.9.1
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