From: Nicholas Bellinger <nab at linux-iscsi.org> Greeting STGT folks, This is the third round of patches for adding proper LUN passthrough support into STGT using struct scsi_lu->cmd_perform() and struct scsi_lu->cmd_done() callers with existing SG_IO and the new BSG v4 backstores. Following Tomo-san's input, the changelog between v2 -> v3 is as follows: 1) Add struct device_type_template sg_template for SG_IO and BSG in usr/bs_sg.c instead of making changes to usr/sbc.c 2) Add struct backingstore_template->bs_passthrough member of type int for SG_IO and BSG. 3) In usr/target.c:tgt_device_create() pass bst->bs_passthrough into device_type_lookup() and for passthrough case use the new device_type_passthrough() to locate struct device_type_template sg_template. 4) Remove unnecessary post_cmd_done() from usr/target.c:__cmd_done_passthrough() This patch series has been tested with STGT/iSCSI using 'sg'+'bsg' and 'rdwr' for non passthrough mode backstores into TCM_Loop LLD emulated iSCSI target ports. Best, Signed-off-by: Nicholas A. Bellinger <nab at linux-iscsi.org Nicholas Bellinger (3): [tgt]: Add proper STGT LUN backstore passthrough support (rev 3) [tgt]: Add bs_sg struct device_type_template sg_template and struct backingstore_template->bs_init() [tgt]: Add BSG v4 backstore support to usr/bs_sg.c usr/bs_sg.c | 247 ++++++++++++++++++++++++++++++++++++++++++++++++++++-- usr/scsi_cmnd.h | 7 ++ usr/target.c | 113 +++++++++++++++++++++++--- usr/tgtd.h | 16 ++++ 4 files changed, 362 insertions(+), 21 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe stgt" in the body of a message to majordomo at vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html |