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52c07423a8
kernel-ark/drivers/target
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Nicholas Bellinger 52c07423a8 target/rd: Add ramdisk bit for NULLIO operation 
This patch adds a rd_nullio parameter that allows RAMDISK_MCP backends
to function in NULLIO mode, where all se_cmd I/O is immediately completed
in rd_execute_rw() without actually performing the SGL memory copy.

This is useful for performance testing when the ramdisk SGL memory copy
begins to eat lots of cycles during heavy small block workloads, so allow
this bit to be enabled when necessary on a per rd_dev basis.

Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2013-05-11 16:22:39 -07:00
..
iscsi iscsi-target: Fix processing of OOO commands 2013-05-07 16:51:58 -07:00
loopback target: kill struct se_subsystem_dev 2012-11-06 20:55:43 -08:00
sbp Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2013-03-02 11:43:27 -08:00
tcm_fc tcm_fc: Check for aborted sequence 2013-04-25 01:05:28 -07:00
Kconfig sbp-target: Initial merge of firewire/ieee-1394 target mode support 2012-05-09 15:25:17 -07:00
Makefile target: move code for CDB emulation 2012-07-16 17:27:45 -07:00
target_core_alua.c target: Fix incorrect fallthrough of ALUA Standby/Offline/Transition CDBs 2013-04-11 01:48:49 -07:00
target_core_alua.h target: pass sense_reason as a return value 2012-11-06 20:55:46 -08:00
target_core_configfs.c target: Have dev/enable show if TCM device is configured 2013-05-03 16:46:02 -07:00
target_core_device.c target: Remove unused struct members in se_dev_entry 2013-05-03 16:42:18 -07:00
target_core_fabric_configfs.c target: Add missing mapped_lun bounds checking during make_mappedlun setup 2013-02-18 18:47:28 -08:00
target_core_fabric_lib.c target: Update copyright information to 2012 2012-11-27 22:47:02 -08:00
target_core_file.c target: Use FD_MAX_SECTORS/FD_BLOCKSIZE for blockdevs using fileio 2013-05-03 16:44:24 -07:00
target_core_file.h target/file: Bump FD_MAX_SECTORS to 2048 to handle 1M sized I/Os 2013-03-19 17:24:28 -07:00
target_core_hba.c target: Update copyright information to 2012 2012-11-27 22:47:02 -08:00
target_core_iblock.c target: Add sbc_execute_unmap() helper 2013-04-25 01:05:24 -07:00
target_core_iblock.h target: kill struct se_subsystem_dev 2012-11-06 20:55:43 -08:00
target_core_internal.h target: Remove unused struct members in se_dev_entry 2013-05-03 16:42:18 -07:00
target_core_pr.c target: writev() on single-element vector is pointless 2013-02-26 02:46:11 -05:00
target_core_pr.h target: pass sense_reason as a return value 2012-11-06 20:55:46 -08:00
target_core_pscsi.c target/pscsi: Reject cross page boundary case in pscsi_map_sg 2013-03-19 17:31:14 -07:00
target_core_pscsi.h target: kill struct se_subsystem_dev 2012-11-06 20:55:43 -08:00
target_core_rd.c target/rd: Add ramdisk bit for NULLIO operation 2013-05-11 16:22:39 -07:00
target_core_rd.h target/rd: Add ramdisk bit for NULLIO operation 2013-05-11 16:22:39 -07:00
target_core_sbc.c target: Add sbc_execute_unmap() helper 2013-04-25 01:05:24 -07:00
target_core_spc.c target: Fix parameter list length checking in MODE SELECT 2013-02-13 12:16:11 -08:00
target_core_stat.c target: Update copyright information to 2012 2012-11-27 22:47:02 -08:00
target_core_tmr.c target: Remove useless if statement 2013-02-13 11:27:22 -08:00
target_core_tpg.c target: fix possible memory leak in core_tpg_register() 2013-03-18 12:45:52 -07:00
target_core_transport.c target: Remove unused struct members in se_dev_entry 2013-05-03 16:42:18 -07:00
target_core_ua.c target: Update copyright information to 2012 2012-11-27 22:47:02 -08:00
target_core_ua.h target: pass sense_reason as a return value 2012-11-06 20:55:46 -08:00