From: Nicholas Bellinger <nab@xxxxxxxxxxxxxxx> Greetings Boaz and Co, This patch series adds proper support to TCM Core for XDWRITEREAD_32 and XDWRITEREAD_10 to allow for TCM/pSCSI plugin -> SCSI ML via struct request. This first patch adds the necessary pieces to TCM Core for handling the transparent memory mapping using the new struct se_task->task_sg_bidi[], and other necessary bits for the underlying per new se_task BIDI context into TCM/pSCSI. The second patch adds support in TCM/pSCSI plugin code to handle the extra struct request allocation, setup and release for the additional BIDI SCSI READ SCSI READ payload going into struct se_task->task_sg_bidi[] memory. And the third patch adds the same passthrough option as above with TCM/pSCSI for XDWRITEREAD_10 CDBs in TCM Core. So far this has been tested with TCM_Loop -> TCM_core -> TCM/pSCSI -> scsi_debug on v2.6.36-rc4 in x86 HVM. Many thanks to Boaz for his comments with BIDI-COMMANDs and > 16 byte CDBs! Signed-off-by: Nicholas A. Bellinger <nab@xxxxxxxxxxxxxxx> Nicholas Bellinger (3): tcm: Add support for BIDI-COMMAND passthrough tcm/pscsi: Add proper BIDI-COMMAND passthrough to SCSI MidLayer tcm: Add XDWRITEREAD_10 passthrough support drivers/target/target_core_pscsi.c | 111 ++++++++++++++++++++++++------- drivers/target/target_core_pscsi.h | 1 + drivers/target/target_core_transport.c | 112 ++++++++++++++++++++++++++++---- include/target/target_core_base.h | 1 + 4 files changed, 185 insertions(+), 40 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
