From: Nicholas Bellinger <nab@xxxxxxxxxxxxxxx> Hi folks, This series contains target-core queue-full + iscsi-target callback fixes for a bug reported by Steve and Potnuri during recent v4.8.y iWARP/iser-target testing. The first patch fixes target-core queue-full handling response leaks with non -EAGAIN / -ENOMEM errors. It uses a new state TRANSPORT_COMPLETE_QF_ERR to internally generate CHECK_CONDITION for unknown fabric callback errors, to avoid attempting retry of fabric data-transfer callbacks for this special case. This means all non -EAGAIN / -ENOMEM fabric callback errors during target_core_fabric_ops for: *) ->write_pending() *) ->queue_data_in() *) ->queue_status() will result in CHECK_CONDITION + LOGICAL_UNIT_COMMUNICATION_FAILURE, if no non-zero se_cmd->scsi_status was previously set. It also means target-core ->queue_status() errors retry indefinately, or until session shutdown explicitly stops outstanding I/O. The remaining changes are for propagating iscsit_transport response failure back to target-core queue-full, and updating iser-target to propagate isert_rdma_rw_ctx_post() errors from RDMA R/W API back to target-core as well. Please review. --nab Nicholas Bellinger (3): target: Fix unknown fabric callback queue-full errors iscsi-target: Propigate queue_data_in + queue_status errors iser-target: Fix queue-full response handling drivers/infiniband/ulp/isert/ib_isert.c | 53 +++++++++----- drivers/target/iscsi/iscsi_target.c | 3 +- drivers/target/iscsi/iscsi_target_configfs.c | 13 ++-- drivers/target/iscsi/iscsi_target_util.c | 5 +- drivers/target/iscsi/iscsi_target_util.h | 2 +- drivers/target/target_core_transport.c | 102 ++++++++++++++++++--------- include/target/target_core_base.h | 1 + 7 files changed, 114 insertions(+), 65 deletions(-) -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
