kernel/linux.git/drivers/infiniband/ulp, branch v3.11.1

IPoIB: Fix pkey change flow for virtualization environments

2013-07-31T21:23:44+00:00

IPoIB's required behaviour w.r.t to the pkey used by the device is the following: - For "parent" interfaces (e.g ib0, ib1, etc) who are created automatically as a result of hot-plug events from the IB core, the driver needs to take whatever pkey vlaue it finds in index 0, and stick to that index. - For child interfaces (e.g ib0.8001, etc) created by admin directive, the driver needs to use and stick to the value provided during its creation. In SR-IOV environment its possible for the VF probe to take place before the cloud management software provisions the suitable pkey for the VF in the paravirtualed PKEY table index 0. When this is the case, the VF IB stack will find in index 0 an invalide pkey, which is all zeros. Moreover, the cloud managment can assign the pkey value at index 0 at any time of the guest life cycle. The correct behavior for IPoIB to address these requirements for parent interfaces is to use PKEY_CHANGE event as trigger to optionally re-init the device pkey value and re-create all the relevant resources accordingly, if the value of the pkey in index 0 has changed (from invalid to valid or from valid value X to invalid value Y). This patch enhances the heavy flushing code which is triggered by pkey change event, to behave correctly for parent devices. For child devices, the code remains the same, namely chases pkey value and not index. Signed-off-by: Erez Shitrit Signed-off-by: Or Gerlitz Signed-off-by: Roland Dreier

IPoIB: Make sure child devices use valid/proper pkeys

2013-07-31T21:23:40+00:00

Make sure that the IB invalid pkey (0x0000 or 0x8000) isn't used for child devices. Also, make sure to always set the full membership bit for the pkey of devices created by rtnl link ops. Signed-off-by: Or Gerlitz Signed-off-by: Roland Dreier

Merge tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband

2013-07-13T19:57:21+00:00

Pull InfiniBand/RDMA changes from Roland Dreier: - AF_IB (native IB addressing) for CMA from Sean Hefty - new mlx5 driver for Mellanox Connect-IB adapters (including post merge request fixes) - SRP fixes from Bart Van Assche (including fix to first merge request) - qib HW driver updates - resurrection of ocrdma HW driver development - uverbs conversion to create fds with O_CLOEXEC set - other small changes and fixes * tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (66 commits) mlx5: Return -EFAULT instead of -EPERM IB/qib: Log all SDMA errors unconditionally IB/qib: Fix module-level leak mlx5_core: Adjust hca_cap.uar_page_sz to conform to Connect-IB spec IB/srp: Let srp_abort() return FAST_IO_FAIL if TL offline IB/uverbs: Use get_unused_fd_flags(O_CLOEXEC) instead of get_unused_fd() mlx5_core: Fixes for sparse warnings IB/mlx5: Make profile[] static in main.c mlx5: Fix parameter type of health_handler_t mlx5: Add driver for Mellanox Connect-IB adapters IB/core: Add reserved values to enums for low-level driver use IB/srp: Bump driver version and release date IB/srp: Make HCA completion vector configurable IB/srp: Maintain a single connection per I_T nexus IB/srp: Fail I/O fast if target offline IB/srp: Skip host settle delay IB/srp: Avoid skipping srp_reset_host() after a transport error IB/srp: Fix remove_one crash due to resource exhaustion IB/qib: New transmitter tunning settings for Dell 1.1 backplane IB/core: Fix error return code in add_port() ...

IB/srp: Let srp_abort() return FAST_IO_FAIL if TL offline

2013-07-11T23:43:48+00:00

If the transport layer is offline it is more appropriate to let srp_abort() return FAST_IO_FAIL instead of SUCCESS. Reported-by: Sebastian Riemer Acked-by: David Dillow Signed-off-by: Bart Van Assche Signed-off-by: Roland Dreier

Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending

2013-07-11T19:57:19+00:00

Pull SCSI target updates from Nicholas Bellinger: "Lots of activity this round on performance improvements in target-core while benchmarking the prototype scsi-mq initiator code with vhost-scsi fabric ports, along with a number of iscsi/iser-target improvements and hardening fixes for exception path cases post v3.10 merge. The highlights include: - Make persistent reservations APTPL buffer allocated on-demand, and drop per t10_reservation buffer. (grover) - Make virtual LUN=0 a NULLIO device, and skip allocation of NULLIO device pages (grover) - Add transport_cmd_check_stop write_pending bit to avoid extra access of ->t_state_lock is WRITE I/O submission fast-path. (nab) - Drop unnecessary CMD_T_DEV_ACTIVE check from transport_lun_remove_cmd to avoid extra access of ->t_state_lock in release fast-path. (nab) - Avoid extra t_state_lock access in __target_execute_cmd fast-path (nab) - Drop unnecessary vhost-scsi wait_for_tasks=true usage + ->t_state_lock access in release fast-path. (nab) - Convert vhost-scsi to use modern se_cmd->cmd_kref TARGET_SCF_ACK_KREF usage (nab) - Add tracepoints for SCSI commands being processed (roland) - Refactoring of iscsi-target handling of ISCSI_OP_NOOP + ISCSI_OP_TEXT to be transport independent (nab) - Add iscsi-target SendTargets=$IQN support for in-band discovery (nab) - Add iser-target support for in-band discovery (nab + Or) - Add iscsi-target demo-mode TPG authentication context support (nab) - Fix isert_put_reject payload buffer post (nab) - Fix iscsit_add_reject* usage for iser (nab) - Fix iscsit_sequence_cmd reject handling for iser (nab) - Fix ISCSI_OP_SCSI_TMFUNC handling for iser (nab) - Fix session reset bug with RDMA_CM_EVENT_DISCONNECTED (nab) The last five iscsi/iser-target items are CC'ed to stable, as they do address issues present in v3.10 code. They are certainly larger than I'd like for stable patch set, but are important to ensure proper REJECT exception handling in iser-target for 3.10.y" * 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: (51 commits) iser-target: Ignore non TEXT + LOGOUT opcodes for discovery target: make queue_tm_rsp() return void target: remove unused codes from enum tcm_tmrsp_table iscsi-target: kstrtou* configfs attribute parameter cleanups iscsi-target: Fix tfc_tpg_auth_cit configfs length overflow iscsi-target: Fix tfc_tpg_nacl_auth_cit configfs length overflow iser-target: Add support for ISCSI_OP_TEXT opcode + payload handling iser-target: Rename sense_buf_[dma,len] to pdu_[dma,len] iser-target: Add vendor_err debug output target: Add (obsolete) checking for PMI/LBA fields in READ CAPACITY(10) target: Return correct sense data for IO past the end of a device target: Add tracepoints for SCSI commands being processed iser-target: Fix session reset bug with RDMA_CM_EVENT_DISCONNECTED iscsi-target: Fix ISCSI_OP_SCSI_TMFUNC handling for iser iscsi-target: Fix iscsit_sequence_cmd reject handling for iser iscsi-target: Fix iscsit_add_reject* usage for iser iser-target: Fix isert_put_reject payload buffer post iscsi-target: missing kfree() on error path iscsi-target: Drop left-over iscsi_conn->bad_hdr target: Make core_scsi3_update_and_write_aptpl return sense_reason_t ...

iser-target: Ignore non TEXT + LOGOUT opcodes for discovery

2013-07-08T01:37:02+00:00

This patch adds a check in isert_rx_opcode() to ignore non TEXT + LOGOUT opcodes when SessionType=Discovery has been negotiated. Cc: Or Gerlitz Signed-off-by: Nicholas Bellinger

target: make queue_tm_rsp() return void

2013-07-08T01:36:53+00:00

The return value wasn't checked by any of the callers. Assuming this is correct behaviour, we can simplify some code by not bothering to generate it. nab: Add srpt_queue_data_in() + srpt_queue_tm_rsp() nops around srpt_queue_response() void return Signed-off-by: Joern Engel Signed-off-by: Nicholas Bellinger

iser-target: Add support for ISCSI_OP_TEXT opcode + payload handling

2013-07-08T01:36:48+00:00

This patch adds isert_handle_text_cmd() to handle incoming ISCSI_OP_TEXT PDU processing, along with isert_put_text_rsp() for posting ISCSI_OP_TEXT_RSP ib_send_wr response. It copies ISCSI_OP_TEXT payload using unsolicited payload at &iser_rx_desc->data[0] into iscsi_cmd->text_in_ptr for usage with outgoing isert_put_text_rsp() -> iscsit_build_text_rsp() v2 changes: - Let iscsit_build_text_rsp() determine any extra padding Reported-by: Or Gerlitz Cc: Or Gerlitz Cc: Mike Christie Signed-off-by: Nicholas Bellinger

iser-target: Rename sense_buf_[dma,len] to pdu_[dma,len]

2013-07-08T01:36:47+00:00

Now that these two variables are used for REJECT payloads as well as SCSI response sense payloads, rename them to something that makes more sense. Signed-off-by: Nicholas Bellinger

iser-target: Add vendor_err debug output

2013-07-08T01:36:46+00:00

Add output for ib_wc.vendor_err in isert_cq_[t,r]x_work(), which is useful for debugging future issues. Reported-by: Or Gerlitz Signed-off-by: Nicholas Bellinger