From: Nicholas Bellinger <nab@xxxxxxxxxxxxxxx> Greetings jejb, mkp and Co, This patch series adds support for native 32-byte CDB processing into TCM Core, TCM subsystem plugins, and TCM_Loop virtual SCSI LLD. The first patch adds the new TCM_MAX_COMMAND_SIZE=32 defintion and adds the necessary LBA + transfer length extraction and generation methods for 32-byte CDBs following SBC-4. This includes converting FILEIO, IBLOCK, PSCSI, RAMDISK and STGT subsystem plugins to use the new TCM_MAX_COMMAND_SIZE value for their own per struct se_task context descriptor internal inline CDB size defines. The second patch adds proper VARIABLE_LENGTH_CMD support together with XDWRITE_READ_32 emulation following the recent patch adding support for XDWRITE_READ_10. And the third and final patch updates the TCM_Loop fabric module to signal the Linux/SCSI midlayer that we are now capable of processing up to 32-byte CDBs. Also, I ended up adding support for XDWRITE_READ_32 into Tomo's sgv4-utils.git in order to test this series. Please have look and let me know what you think Tomo! http://linux-iscsi.org/builds/user/nab/0001-sgv4_xdwriteread-Add-support-for-XDWRITEREAD_32.patch Many thanks to jejb and mkp for answering my questions about > 16 byte CDB support! Signed-off-by: Nicholas A. Bellinger <nab@xxxxxxxxxxxxxxx> Nicholas Bellinger (3): tcm: Add native 32-byte CDB support tcm: Add VARIABLE_LENGTH_CMD support w/ XDWRITE_READ_32 emulation tcm_loop: Enable 32-byte CDB support in virtual SCSI LLD drivers/target/target_core_file.h | 2 +- drivers/target/target_core_iblock.h | 2 +- drivers/target/target_core_pscsi.c | 2 +- drivers/target/target_core_pscsi.h | 2 +- drivers/target/target_core_rd.h | 2 +- drivers/target/target_core_scdb.c | 38 ++++++++++++ drivers/target/target_core_scdb.h | 2 + drivers/target/target_core_stgt.h | 2 +- drivers/target/target_core_transport.c | 94 +++++++++++++++++++++++++++---- drivers/target/tcm_loop/tcm_loop_core.h | 2 +- include/target/target_core_base.h | 13 ++++ 11 files changed, 142 insertions(+), 19 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
