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2014-04-13Merge branch 'for-next' of ↵Linus Torvalds3-203/+690
git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending Pull SCSI target updates from Nicholas Bellinger: "Here are the target pending updates for v3.15-rc1. Apologies in advance for waiting until the second to last day of the merge window to send these out. The highlights this round include: - iser-target support for T10 PI (DIF) offloads (Sagi + Or) - Fix Task Aborted Status (TAS) handling in target-core (Alex Leung) - Pass in transport supported PI at session initialization (Sagi + MKP + nab) - Add WRITE_INSERT + READ_STRIP T10 PI support in target-core (nab + Sagi) - Fix iscsi-target ERL=2 ASYNC_EVENT connection pointer bug (nab) - Fix tcm_fc use-after-free of ft_tpg (Andy Grover) - Use correct ib_sg_dma primitives in ib_isert (Mike Marciniszyn) Also, note the virtio-scsi + vhost-scsi changes to expose T10 PI metadata into KVM guest have been left-out for now, as there where a few comments from MST + Paolo that where not able to be addressed in time for v3.15. Please expect this feature for v3.16-rc1" * 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: (43 commits) ib_srpt: Use correct ib_sg_dma primitives target/tcm_fc: Rename ft_tport_create to ft_tport_get target/tcm_fc: Rename ft_{add,del}_lport to {add,del}_wwn target/tcm_fc: Rename structs and list members for clarity target/tcm_fc: Limit to 1 TPG per wwn target/tcm_fc: Don't export ft_lport_list target/tcm_fc: Fix use-after-free of ft_tpg target: Add check to prevent Abort Task from aborting itself target: Enable READ_STRIP emulation in target_complete_ok_work target/sbc: Add sbc_dif_read_strip software emulation target: Enable WRITE_INSERT emulation in target_execute_cmd target/sbc: Add sbc_dif_generate software emulation target/sbc: Only expose PI read_cap16 bits when supported by fabric target/spc: Only expose PI mode page bits when supported by fabric target/spc: Only expose PI inquiry bits when supported by fabric target: Pass in transport supported PI at session initialization target/iblock: Fix double bioset_integrity_free bug Target/sbc: Initialize COMPARE_AND_WRITE write_sg scatterlist target/rd: T10-Dif: RAM disk is allocating more space than required. iscsi-target: Fix ERL=2 ASYNC_EVENT connection pointer bug ...
2014-04-12ib_srpt: Use correct ib_sg_dma primitivesMike Marciniszyn1-6/+10
The code was incorrectly using sg_dma_address() and sg_dma_len() instead of ib_sg_dma_address() and ib_sg_dma_len(). This prevents srpt from functioning with the Intel HCA and indeed will corrupt memory badly. Cc: Bart Van Assche <bvanassche@acm.org> Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Tested-by: Vinod Kumar <vinod.kumar@intel.com> Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Cc: stable@vger.kernel.org # 3.3+ Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2014-04-07target: Pass in transport supported PI at session initializationNicholas Bellinger2-1/+14
In order to support local WRITE_INSERT + READ_STRIP operations for non PI enabled fabrics, the fabric driver needs to be able signal what protection offload operations are supported. This is done at session initialization time so the modes can be signaled by individual se_wwn + se_portal_group endpoints, as well as optionally across different transports on the same endpoint. For iser-target, set TARGET_PROT_ALL if the underlying ib_device has already signaled PI offload support, and allow this to be exposed via a new iscsit_transport->iscsit_get_sup_prot_ops() callback. For loopback, set TARGET_PROT_ALL to signal SCSI initiator mode operation. For all other drivers, set TARGET_PROT_NORMAL to disable fabric level PI. Cc: Martin K. Petersen <martin.petersen@oracle.com> Cc: Sagi Grimberg <sagig@mellanox.com> Cc: Or Gerlitz <ogerlitz@mellanox.com> Cc: Quinn Tran <quinn.tran@qlogic.com> Cc: Giridhar Malavali <giridhar.malavali@qlogic.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2014-04-07Target/iser: Use Fastreg only if device supports signatureSagi Grimberg1-1/+2
Fastreg is mandatory for signature, so if the device doesn't support it we don't need to use it. Signed-off-by: Sagi Grimberg <sagig@mellanox.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2014-04-07iser-target: Add missing se_cmd put for WRITE_PENDING in tx_comp_errNicholas Bellinger1-11/+26
This patch fixes a bug where outstanding RDMA_READs with WRITE_PENDING status require an extra target_put_sess_cmd() in isert_put_cmd() code when called from isert_cq_tx_comp_err() + isert_cq_drain_comp_llist() context during session shutdown. The extra kref PUT is required so that transport_generic_free_cmd() invokes the last target_put_sess_cmd() -> target_release_cmd_kref(), which will complete(&se_cmd->cmd_wait_comp) the outstanding se_cmd descriptor with WRITE_PENDING status, and awake the completion in target_wait_for_sess_cmds() to invoke TFO->release_cmd(). The bug was manifesting itself in target_wait_for_sess_cmds() where a se_cmd descriptor with WRITE_PENDING status would end up sleeping indefinately. Acked-by: Sagi Grimberg <sagig@mellanox.com> Cc: Or Gerlitz <ogerlitz@mellanox.com> Cc: <stable@vger.kernel.org> #3.10+ Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2014-04-07target: Add TFO->abort_task for aborted task resources releaseNicholas Bellinger2-0/+28
Now that TASK_ABORTED status is not generated for all cases by TMR ABORT_TASK + LUN_RESET, a new TFO->abort_task() caller is necessary in order to give fabric drivers a chance to unmap hardware / software resources before the se_cmd descriptor is released via the normal TFO->release_cmd() codepath. This patch adds TFO->aborted_task() in core_tmr_abort_task() in place of the original transport_send_task_abort(), and also updates all fabric drivers to implement this caller. The fabric drivers that include changes to perform cleanup via ->aborted_task() are: - iscsi-target - iser-target - srpt - tcm_qla2xxx The fabric drivers that currently set ->aborted_task() to NOPs are: - loopback - tcm_fc - usb-gadget - sbp-target - vhost-scsi For the latter five, there appears to be no additional cleanup required before invoking TFO->release_cmd() to release the se_cmd descriptor. v2 changes: - Move ->aborted_task() call into transport_cmd_finish_abort (Alex) Cc: Alex Leung <amleung21@yahoo.com> Cc: Mark Rustad <mark.d.rustad@intel.com> Cc: Roland Dreier <roland@kernel.org> Cc: Vu Pham <vu@mellanox.com> Cc: Chris Boot <bootc@bootc.net> Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Cc: Michael S. Tsirkin <mst@redhat.com> Cc: Giridhar Malavali <giridhar.malavali@qlogic.com> Cc: Saurav Kashyap <saurav.kashyap@qlogic.com> Cc: Quinn Tran <quinn.tran@qlogic.com> Cc: Sagi Grimberg <sagig@mellanox.com> Cc: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2014-04-07iser-target: Match FRMR descriptors to available session tagsNicholas Bellinger1-15/+23
This patch changes isert_conn_create_fastreg_pool() to follow logic in iscsi_target_locate_portal() for determining how many FRMR descriptors to allocate based upon the number of possible per-session command slots that are available. This addresses an OOPs in isert_reg_rdma() where due to the use of ISCSI_DEF_XMIT_CMDS_MAX could end up returning a bogus fast_reg_descriptor when the number of active tags exceeded the original hardcoded max. Note this also includes moving isert_conn_create_fastreg_pool() from isert_connect_request() to isert_put_login_tx() before posting the final Login Response PDU in order to determine the se_nacl->queue_depth (eg: number of tags) per session the target will be enforcing. v2 changes: - Move isert_conn->conn_fr_pool list_head init into isert_conn_request() v3 changes: - Drop unnecessary list_empty() check in isert_reg_rdma() (Sagi) Cc: Sagi Grimberg <sagig@mellanox.com> Cc: Or Gerlitz <ogerlitz@mellanox.com> Cc: <stable@vger.kernel.org> #3.12+ Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2014-04-07Target/iser: Fail SCSI WRITE command if device detected integrity errorSagi Grimberg1-2/+6
If during data-transfer a data-integrity error was detected we must fail the command with CHECK_CONDITION and not execute the command. Signed-off-by: Sagi Grimberg <sagig@mellanox.com> Reported-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2014-04-07Target/iser: Move check signature status to a functionSagi Grimberg1-65/+50
Remove code duplication from RDMA_READ and RDMA_WRITE completions that do basically the same check. Signed-off-by: Sagi Grimberg <sagig@mellanox.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2014-04-07Target/iser: Consider DIF and RDMA_READ completions when calculating ↵Sagi Grimberg1-6/+41
post_send counter If protection is involved, iSER target must wait for completion of RDMA_READ before sending SCSI response. So we must consider that when calculating post_send_buf_count additions, also when processing good/error completions. Signed-off-by: Sagi Grimberg <sagig@mellanox.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2014-04-07Target/iser: Fix signature work requests accountingSagi Grimberg1-0/+2
As REG_SIG_MR work request and it's LOCAL_INVALIDATE are not accounted in post_send_buf_count we must color these with ISER_FASTREG_LI_WRID in order to process their error completions when the QP flushes. Signed-off-by: Sagi Grimberg <sagig@mellanox.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2014-04-07IB/isert: Support T10-PI protected transactionsSagi Grimberg2-29/+311
In case the Target core passed transport T10 protection operation: 1. Register data buffer (data memory region) 2. Register protection buffer if exsists (prot memory region) 3. Register signature region (signature memory region) - use work request IB_WR_REG_SIG_MR 4. Execute RDMA 5. Upon RDMA completion check the signature status - if succeeded send good SCSI response - if failed send SCSI bad response with appropriate sense buffer (Fix up compile error in isert_reg_sig_mr, and fix up incorrect se_cmd->prot_type -> TARGET_PROT_NORMAL comparision - nab) (Fix failed sector assignment in isert_completion_rdma_* - Sagi + nab) (Fix enum assignements for protection type - Sagi) (Fix devision on 32-bit in isert_completion_rdma_* - Sagi + Fengguang) (Fix context change for v3.14-rc6 code - nab) (Fix iscsit_build_rsp_pdu inc_statsn flag usage - nab) Signed-off-by: Sagi Grimberg <sagig@mellanox.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2014-04-07IB/isert: Accept RDMA_WRITE completionsSagi Grimberg1-2/+17
In case of protected transactions, we will need to check the protection status of the transaction before sending SCSI response. So be ready for RDMA_WRITE completions. currently we don't ask for these completions, but for T10-PI we will. Signed-off-by: Sagi Grimberg <sagig@mellanox.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2014-04-07IB/isert: Initialize T10-PI resourcesSagi Grimberg2-17/+110
Introduce pi_context to hold relevant RDMA protection resources. We eliminate data_key_valid boolean and replace it with indicators container to indicate: - Is the descriptor protected (registered via signature MR) - Is the data_mr key valid (can spare LOCAL_INV WR) - Is the prot_mr key valid (can spare LOCAL_INV WR) - Is the sig_mr key valid (can spare LOCAL_INV WR) Upon connection establishment check if network portal is T10-PI enabled and allocate T10-PI resources if necessary, allocate signature enabled memory regions and mark connection queue-pair as signature enabled. (Fix context change for v3.14-rc6 code - nab) Signed-off-by: Sagi Grimberg <sagig@mellanox.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2014-04-07IB/isert: Introduce isert_map/unmap_data_bufSagi Grimberg2-125/+127
export map/unmap data buffer to a routine that may be used in various places in the code and keep the mapping data in a designated descriptor. Also, let isert_fast_reg_mr to decide weather to use global MR or do fast registration. This commit does not change any functionality. (Fix context change for v3.14-rc6 code - nab) Signed-off-by: Sagi Grimberg <sagig@mellanox.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2014-04-04Merge tag 'rdma-for-linus' of ↵Linus Torvalds72-1456/+4154
git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband Pull infiniband updates from Roland Dreier: "Main batch of InfiniBand/RDMA changes for 3.15: - The biggest change is core API extensions and mlx5 low-level driver support for handling DIF/DIX-style protection information, and the addition of PI support to the iSER initiator. Target support will be arriving shortly through the SCSI target tree. - A nice simplification to the "umem" memory pinning library now that we have chained sg lists. Kudos to Yishai Hadas for realizing our code didn't have to be so crazy. - Another nice simplification to the sg wrappers used by qib, ipath and ehca to handle their mapping of memory to adapter. - The usual batch of fixes to bugs found by static checkers etc. from intrepid people like Dan Carpenter and Yann Droneaud. - A large batch of cxgb4, ocrdma, qib driver updates" * tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (102 commits) RDMA/ocrdma: Unregister inet notifier when unloading ocrdma RDMA/ocrdma: Fix warnings about pointer <-> integer casts RDMA/ocrdma: Code clean-up RDMA/ocrdma: Display FW version RDMA/ocrdma: Query controller information RDMA/ocrdma: Support non-embedded mailbox commands RDMA/ocrdma: Handle CQ overrun error RDMA/ocrdma: Display proper value for max_mw RDMA/ocrdma: Use non-zero tag in SRQ posting RDMA/ocrdma: Memory leak fix in ocrdma_dereg_mr() RDMA/ocrdma: Increment abi version count RDMA/ocrdma: Update version string be2net: Add abi version between be2net and ocrdma RDMA/ocrdma: ABI versioning between ocrdma and be2net RDMA/ocrdma: Allow DPP QP creation RDMA/ocrdma: Read ASIC_ID register to select asic_gen RDMA/ocrdma: SQ and RQ doorbell offset clean up RDMA/ocrdma: EQ full catastrophe avoidance RDMA/cxgb4: Disable DSGL use by default RDMA/cxgb4: rx_data() needs to hold the ep mutex ...
2014-04-03Merge branches 'core', 'cxgb4', 'ip-roce', 'iser', 'misc', 'mlx4', 'nes', ↵Roland Dreier56-871/+2918
'ocrdma', 'qib', 'sgwrapper', 'srp' and 'usnic' into for-next
2014-04-03RDMA/ocrdma: Unregister inet notifier when unloading ocrdmaSelvin Xavier1-2/+14
Unregister the inet notifier during ocrdma unload to avoid a panic after driver unload. Signed-off-by: Selvin Xavier <selvin.xavier@emulex.com> Signed-off-by: Devesh Sharma <devesh.sharma@emulex.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2014-04-03RDMA/ocrdma: Fix warnings about pointer <-> integer castsRoland Dreier1-3/+4
We should cast pointers to and from unsigned long to turn them into ints. Signed-off-by: Roland Dreier <roland@purestorage.com>
2014-04-03RDMA/ocrdma: Code clean-upDevesh Sharma7-47/+24
Clean up code. Also modifying GSI QP to error during ocrdma_close is fixed. Signed-off-by: Devesh Sharma <devesh.sharma@emulex.com> Signed-off-by: Selvin Xavier <selvin.xavier@emulex.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2014-04-03RDMA/ocrdma: Display FW versionSelvin Xavier1-1/+41
Adding a sysfs file for getting the FW version. Signed-off-by: Selvin Xavier <selvin.xavier@emulex.com> Signed-off-by: Devesh Sharma <devesh.sharma@emulex.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2014-04-03RDMA/ocrdma: Query controller informationSelvin Xavier8-2/+1135
Issue mailbox commands to query ocrdma controller information and phy information and print them while adding ocrdma device. Signed-off-by: Selvin Xavier <selvin.xavier@emulex.com> Signed-off-by: Devesh Sharma <devesh.sharma@emulex.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2014-04-03RDMA/ocrdma: Support non-embedded mailbox commandsSelvin Xavier1-8/+47
Added a routine to issue non-embedded mailbox commands for handling large mailbox request/response data. Signed-off-by: Selvin Xavier <selvin.xavier@emulex.com> Signed-off-by: Devesh Sharma <devesh.sharma@emulex.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2014-04-03RDMA/ocrdma: Handle CQ overrun errorSelvin Xavier1-1/+4
Signed-off-by: Selvin Xavier <selvin.xavier@emulex.com> Signed-off-by: Devesh Sharma <devesh.sharma@emulex.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2014-04-03RDMA/ocrdma: Display proper value for max_mwSelvin Xavier3-1/+3
Signed-off-by: Selvin Xavier <selvin.xavier@emulex.com> Signed-off-by: Devesh Sharma <devesh.sharma@emulex.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2014-04-03RDMA/ocrdma: Use non-zero tag in SRQ postingSelvin Xavier1-10/+18
As part of SRQ receive buffers posting we populate a non-zero tag which will be returned in SRQ receive completions. Signed-off-by: Selvin Xavier <selvin.xavier@emulex.com> Signed-off-by: Devesh Sharma <devesh.sharma@emulex.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2014-04-03RDMA/ocrdma: Memory leak fix in ocrdma_dereg_mr()Selvin Xavier1-2/+1
Signed-off-by: Selvin Xavier <selvin.xavier@emulex.com> Signed-off-by: Devesh Sharma <devesh.sharma@emulex.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2014-04-03RDMA/ocrdma: Increment abi version countDevesh Sharma1-1/+1
Increment the ABI version count for driver/library interface. Signed-off-by: Devesh Sharma <devesh.sharma@emulex.com> Signed-off-by: Selvin Xavier <selvin.xavier@emulex.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2014-04-03RDMA/ocrdma: Update version stringDevesh Sharma2-3/+5
Update the driver vrsion string and node description string Signed-off-by: Devesh Sharma <devesh.sharma@emulex.com> Signed-off-by: Selvin Xavier <selvin.xavier@emulex.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2014-04-03RDMA/ocrdma: ABI versioning between ocrdma and be2netDevesh Sharma2-0/+2
While loading RoCE driver be2net driver should check for ABI version to catch functional incompatibilities. Signed-off-by: Devesh Sharma <devesh.sharma@emulex.com> Signed-off-by: Selvin Xavier <selvin.xavier@emulex.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2014-04-03RDMA/ocrdma: Allow DPP QP creationDevesh Sharma1-2/+1
Allow creating DPP QP even if inline-data is not requested. This is an optimization to lower latency. Signed-off-by: Devesh Sharma <devesh.sharma@emulex.com> Signed-off-by: Selvin Xavier <selvin.xavier@emulex.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2014-04-03RDMA/ocrdma: Read ASIC_ID register to select asic_genDevesh Sharma5-9/+35
ocrdma driver selects execution path based on sli_family and asic generation number. This introduces code to read the asic gen number from pci register instead of obtaining it from the Emulex NIC driver. Signed-off-by: Devesh Sharma <devesh.sharma@emulex.com> Signed-off-by: Selvin Xavier <selvin.xavier@emulex.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2014-04-03RDMA/ocrdma: SQ and RQ doorbell offset clean upDevesh Sharma3-24/+11
Introducing new macros to define SQ and RQ doorbell offset. Signed-off-by: Devesh Sharma <devesh.sharma@emulex.com> Signed-off-by: Selvin Xavier <selvin.xavier@emulex.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2014-04-03RDMA/ocrdma: EQ full catastrophe avoidanceDevesh Sharma4-50/+103
Stale entries in the CQ being destroyed causes hardware to generate EQEs indefinitely for a given CQ. Thus causing uncontrolled execution of irq_handler. This patch fixes this using following sementics: * irq_handler will ring EQ doorbell atleast once and implement budgeting scheme. * cq_destroy will count number of valid entires during destroy and ring cq-db so that hardware does not generate uncontrolled EQE. * cq_destroy will synchronize with last running irq_handler instance. * arm_cq will always defer arming CQ till poll_cq, except for the first arm_cq call. * poll_cq will always ring cq-db with arm=SET if arm_cq was called prior to enter poll_cq. * poll_cq will always ring cq-db with arm=UNSET if arm_cq was not called prior to enter poll_cq. Signed-off-by: Devesh Sharma <devesh.sharma@emulex.com> Signed-off-by: Selvin Xavier <selvin.xavier@emulex.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2014-04-02RDMA/cxgb4: Disable DSGL use by defaultSteve Wise1-2/+2
Current hardware doesn't correctly support DSGL. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2014-04-02RDMA/cxgb4: rx_data() needs to hold the ep mutexSteve Wise1-7/+9
To avoid racing with other threads doing close/flush/whatever, rx_data() should hold the endpoint mutex. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2014-04-02RDMA/cxgb4: Drop RX_DATA packets if the endpoint is goneSteve Wise1-0/+2
Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2014-04-02RDMA/cxgb4: Lock around accept/reject downcallsSteve Wise1-10/+21
There is a race between ULP threads doing an accept/reject, and the ingress processing thread handling close/abort for the same connection. The accept/reject path needs to hold the lock to serialize these paths. Signed-off-by: Steve Wise <swise@opengridcomputing.com> [ Fold in locking fix found by Dan Carpenter <dan.carpenter@oracle.com>. - Roland ] Signed-off-by: Roland Dreier <roland@purestorage.com>
2014-04-02IB/core: Don't resolve passive side RoCE L2 address in CMA REQ handlerMoni Shoua2-43/+0
The code that resolves the passive side source MAC within the rdma_cm connection request handler was both redundant and buggy, so remove it. It was redundant since later, when an RC QP is modified to RTR state, the resolution will take place in the ib_core module. It was buggy because this callback also deals with UD SIDR exchange, for which we incorrectly looked at the REQ member of the CM event and dereferenced a random value. Fixes: dd5f03beb4f7 ("IB/core: Ethernet L2 attributes in verbs/cm structures") Signed-off-by: Moni Shoua <monis@mellanox.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2014-04-01IB/ehca: Remove ib_sg_dma_address() and ib_sg_dma_len() overloadsMike Marciniszyn1-12/+0
These methods appear to only mimic the sg_dma_address() and sg_dma_len() behavior. They can be safely removed. Suggested-by: Bart Van Assche <bvanassche@acm.org> Cc: Bart Van Assche <bvanassche@acm.org> Cc: Hoang-Nam Nguyen <hnguyen@de.ibm.com> Cc: Christoph Raisch <raisch@de.ibm.com> Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2014-04-01IB/ipath: Remove ib_sg_dma_address() and ib_sg_dma_len() overloadsMike Marciniszyn1-28/+15
The removal of these methods is compensated for by code changes to .map_sg to insure that the vanilla sg_dma_address() and sg_dma_len() will do the same thing as the equivalent former ib_sg_dma_address() and ib_sg_dma_len() calls into the drivers. The introduction of this patch required that the struct ipath_dma_mapping_ops be converted to a C99 initializer. Suggested-by: Bart Van Assche <bvanassche@acm.org> Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2014-04-01IB/qib: Remove ib_sg_dma_address() and ib_sg_dma_len() overloadsMike Marciniszyn1-17/+4
Remove the overload for .dma_len and .dma_address The removal of these methods is compensated for by code changes to .map_sg to insure that the vanilla sg_dma_address() and sg_dma_len() will do the same thing as the equivalent former ib_sg_dma_address() and ib_sg_dma_len() calls into the drivers. Suggested-by: Bart Van Assche <bvanassche@acm.org> Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Tested-by: Vinod Kumar <vinod.kumar@intel.com> Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2014-04-01IB/iser: Bump driver version to 1.3Or Gerlitz1-1/+1
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2014-04-01IB/iser: Update Mellanox copyright noteOr Gerlitz5-5/+5
Update Mellanox copyrights for 2014 on the iser initiator driver. Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2014-04-01IB/iser: Print QP information once connection is establishedOr Gerlitz1-2/+7
Add an iser info print with the local/remote QP information carried out when the connection is established. While here, fix a little leftover from the T10 work and set a debug print to be carried in debug and not info level. Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2014-04-01IB/iser: Remove struct iscsi_iser_connAriel Nahum5-79/+59
The iscsi stack has existing mechanisms to link back and forth between the iscsi connection and the iscsi transport (e.g iser/tcp) connection. This is done through a dd_data pointer field in struct iscsi_conn which can be set to point to the transport connection, etc. The iscsi_iser_conn structure was used to get this linking done in another way, which is uneeded and adds extra complication to the iser code, so we just remove it. Signed-off-by: Ariel Nahum <arieln@mellanox.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2014-04-01IB/iser: Drain the tx cq once before looping on the rx cqRoi Dayan1-3/+6
The iser disconnection flow isn't done before all the inflight recv/send buffers posted to the QP are either flushed or normally completed to the CQ that serves this connection. The condition check is done in iser_handle_comp_error(). Currently, it's possible for the send buffer completion that makes the posted send buffers counter reach zero to be polled in the drain tx call, which is after the rx cq is fully drained. Since this completion might be not an error one (for example, it might be a completion of the logout request iSCSI PDU) we will skip iser_handle_comp_error(). So the connection will never terminate from the iscsi stack point of view, and we hang. To resolve this race, do the draining of the tx cq before the loop on the rx cq. Signed-off-by: Roi Dayan <roid@mellanox.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2014-04-01IB/iser: Fix sector_t format warningRandy Dunlap1-2/+3
Fix pr_err (printk) format warning: drivers/infiniband/ulp/iser/iser_verbs.c:1181:4: warning: format '%lx' expects argument of type 'long unsigned int', but argument 3 has type 'sector_t' [-Wformat] Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Roland Dreier <roland@purestorage.com>
2014-04-01mlx4_core: Make buffer larger to avoid overflow warningDan Carpenter1-3/+3
My static checker complains that the sprintf() here can overflow. drivers/infiniband/hw/mlx4/main.c:1836 mlx4_ib_alloc_eqs() error: format string overflow. buf_size: 32 length: 69 This seems like a valid complaint. The "dev->pdev->bus->name" string can be 48 characters long. I just made the buffer 80 characters instead of 69 and I changed the sprintf() to snprintf(). Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2014-04-01mlx4_core: Fix some indenting in mlx4_ib_add()Dan Carpenter1-2/+3
The code was indented too far and also kernel style says we should have curly braces. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
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