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path: root/drivers/infiniband/hw/ocrdma
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2014-08-01RDMA/ocrdma: Allow only SEND opcode in case of UD QPsMitesh Ahuja
Prevent posting opcodes other than send and send immediate on the UD QPs. Signed-off-by: Mitesh Ahuja <mitesh.ahuja@emulex.Com> 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>
2014-08-01RDMA/ocrdma: Avoid reporting wrong completions in case of error CQEsSelvin Xavier
During cable pull test with a mount over NFS/RDMA, the driver was reporting error completions when there were no pending requests in the SQ and RQ. This was triggering a host crash because of reporting wrong work req id. Avoid this crash by adding a check for SQ and RQ empty condition and prevent reporting completions if queues are empty. 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>
2014-08-01RDMA/ocrdma: Delete AH table if ocrdma_init_hw fails after AH table creationDevesh Sharma
Cleanup the AH table in error path, if HW initialization fails after AH table creation. 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>
2014-08-01RDMA/ocrdma: Remove hardcoding of the max DPP QPs supportedDevesh Sharma
Removing hardcoded value of max dpp qps and calculate the same from doorbell page size and WQE size. 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>
2014-08-01RDMA/ocrdma: Handle shutdown event from be2net driverDevesh Sharma
be2net driver sends a shutdown event to ocrdma during shutdown/reboot. As part of event processing, ocrdma calls close() and remove() to free all the resources associated with ocrdma. This also frees irqs used by ocrdma. 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>
2014-08-01RDMA/ocrdma: Add hca_type and fixing fw_version string in device atrributesSelvin Xavier
Add a new entry under sysfs for getting the HW type. Add a new-line character for the FW version string Signed-off-by: Selvin Xavier <selvin.xavier@emulex.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2014-08-01RDMA/ocrdma: Query and initalize the PFC SLSelvin Xavier
This patch implements routine to query the PFC priority from the adapter port. Following are the changes implemented: * A new FW command is implemented to query the operational/admin DCBX configuration from the FW and obtain active priority(service level). * Adds support for the async event reported by FW when the PFC priority changes. Service level is re-initialized during modify_qp or create_ah, based on this event. * Maintain SL value in ocrdma_dev structure and refer that as and when needed. 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>
2014-08-01RDMA/ocrdma: Avoid posting DPP requests for RDMA READDevesh Sharma
Rollback the patch which allows DPP posting of RDMA READ since this path is not yet stable in FW. 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>
2014-05-19RDMA/ocrdma: Convert to use simple_open()Duan Jiong
This removes an open-coded duplicate of simple_open(). Signed-off-by: Duan Jiong <duanj.fnst@cn.fujitsu.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2014-04-03Merge branches 'core', 'cxgb4', 'ip-roce', 'iser', 'misc', 'mlx4', 'nes', ↵Roland Dreier
'ocrdma', 'qib', 'sgwrapper', 'srp' and 'usnic' into for-next
2014-04-03RDMA/ocrdma: Unregister inet notifier when unloading ocrdmaSelvin Xavier
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 Dreier
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 Sharma
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 Xavier
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 Xavier
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 Xavier
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 Xavier
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 Xavier
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 Xavier
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 Xavier
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 Sharma
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 Sharma
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 Sharma
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 Sharma
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 Sharma
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 Sharma
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 Sharma
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>
2014-03-17RDMA/ocrdma: Fix compiler warningPrarit Bhargava
drivers/infiniband/hw/ocrdma/ocrdma_verbs.c: In function ‘_ocrdma_modify_qp’: drivers/infiniband/hw/ocrdma/ocrdma_verbs.c:1299:31: error: ‘old_qps’ may be used uninitialized in this function [-Werror=maybe-uninitialized] status = ocrdma_mbx_modify_qp(dev, qp, attr, attr_mask, old_qps); ocrdma_mbx_modify_qp() (and subsequent calls) doesn't appear to use old_qps so it doesn't need to be passed on. Removing the variable results in the warning going away. Signed-off-by: Prarit Bhargava <prarit@redhat.com> Acked-by: Devesh Sharma (Devesh.sharma@emulex.com) Signed-off-by: Roland Dreier <roland@purestorage.com>
2014-03-04IB: Refactor umem to use linear SG tableYishai Hadas
This patch refactors the IB core umem code and vendor drivers to use a linear (chained) SG table instead of chunk list. With this change the relevant code becomes clearer—no need for nested loops to build and use umem. Signed-off-by: Shachar Raindel <raindel@mellanox.com> Signed-off-by: Yishai Hadas <yishaih@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2014-02-14Merge branches 'cma', 'cxgb4', 'iser', 'misc', 'mlx4', 'mlx5', 'nes', ↵Roland Dreier
'ocrdma', 'qib' and 'usnic' into for-next
2014-02-14RDMA/ocrdma: Fix load time panic during GID table initDevesh Sharma
We should use rdma_vlan_dev_real_dev() instead of using vlan_dev_real_dev() when building the GID table for a vlan interface. Signed-off-by: Devesh Sharma <devesh.sharma@emulex.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2014-02-14RDMA/ocrdma: Fix traffic class shiftDevesh Sharma
Use correct value for obtaining traffic class from device response for Query QP request. Signed-off-by: Devesh Sharma <devesh.sharma@emulex.com> Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2014-02-13IB: Report using RoCE IP based gids in port capsMoni Shoua
For userspace RoCE UD QPs we need to know the GID format that the kernel uses, e.g when working over older kernels. For that end, add a new port capability IB_PORT_IP_BASED_GIDS and report it when query port is issued. Signed-off-by: Moni Shoua <monis@mellanox.co.il> Signed-off-by: Matan Barak <matanb@mellanox.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2014-01-22Merge branch 'ip-roce' into for-nextRoland Dreier
Conflicts: drivers/infiniband/hw/mlx4/main.c
2014-01-19RDMA/ocrdma: Add dependency on INETRoland Dreier
Now that ocrdma supports IP-based addressing, we need to depend on INET, since ocrdma registers itself for net device events. Signed-off-by: Roland Dreier <roland@purestorage.com>
2014-01-19RDMA/ocrdma: Move ocrdma_inetaddr_event outside of "#if CONFIG_IPV6"Roland Dreier
This fixes the build if IPV6 isn't enabled. Signed-off-by: Roland Dreier <roland@purestorage.com>
2014-01-19RDMA/ocrdma: Populate GID table with IP based gidsMoni Shoua
This patch is similar in spirit to the "IB/mlx4: Use IBoE (RoCE) IP based GIDs in the port GID table" patch. Changes to inet4 and inet6 addresses for the host are monitored and if the address is associated with an ocrdma device then a gid is added or deleted from the device's gid table. The gid format will be a IPv4 to IPv6 mapped or the IPv6 address. Cc: Naresh Gottumukkala <bgottumukkala@emulex.com> Signed-off-by: Moni Shoua <monis@mellanox.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2014-01-19RDMA/ocrdma: Handle Ethernet L2 parameters for IP based GID addressingMoni Shoua
This patch is similar in spirit to the "IB/mlx4: Handle Ethernet L2 parameters for IP based GID addressing". It handles the fact that IP based RoCE gids don't store Ethernet L2 parameters, MAC and VLAN. When building an address handle, instead of parsing the dgid to get the MAC and VLAN, take them from the address handle attributes. Cc: Naresh Gottumukkala <bgottumukkala@emulex.com> Signed-off-by: Moni Shoua <monis@mellanox.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2014-01-14IB/core: Ethernet L2 attributes in verbs/cm structuresMatan Barak
This patch add the support for Ethernet L2 attributes in the verbs/cm/cma structures. When dealing with L2 Ethernet, we should use smac, dmac, vlan ID and priority in a similar manner that the IB L2 (and the L4 PKEY) attributes are used. Thus, those attributes were added to the following structures: * ib_ah_attr - added dmac * ib_qp_attr - added smac and vlan_id, (sl remains vlan priority) * ib_wc - added smac, vlan_id * ib_sa_path_rec - added smac, dmac, vlan_id * cm_av - added smac and vlan_id For the path record structure, extra care was taken to avoid the new fields when packing it into wire format, so we don't break the IB CM and SA wire protocol. On the active side, the CM fills. its internal structures from the path provided by the ULP. We add there taking the ETH L2 attributes and placing them into the CM Address Handle (struct cm_av). On the passive side, the CM fills its internal structures from the WC associated with the REQ message. We add there taking the ETH L2 attributes from the WC. When the HW driver provides the required ETH L2 attributes in the WC, they set the IB_WC_WITH_SMAC and IB_WC_WITH_VLAN flags. The IB core code checks for the presence of these flags, and in their absence does address resolution from the ib_init_ah_from_wc() helper function. ib_modify_qp_is_ok is also updated to consider the link layer. Some parameters are mandatory for Ethernet link layer, while they are irrelevant for IB. Vendor drivers are modified to support the new function signature. Signed-off-by: Matan Barak <matanb@mellanox.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2014-01-13RDMA/ocrdma: Fix OCRDMA_GEN2_FAMILY macro definitionDevesh Sharma
OCRDMA_GEN2_FAMILY is wrongly defined as 0x02 -- it should be 0x0F. Signed-off-by: Devesh Sharma <devesh.sharma@emulex.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2014-01-13RDMA/ocrdma: Fix AV_VALID bit positionDevesh Sharma
Fix ah->av->valid bit position and big endian portability. Signed-off-by: Devesh Sharma <devesh.sharma@emulex.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2013-11-08RDMA/ocrdma: Remove redundant check in ocrdma_build_fr()Naresh Gottumukkala
Remove the redundant check of comparing if a 32-bit value is greater than 0xffffffffULL. Reported by Dan Carpenter. Signed-off-by: Naresh Gottumukkala <bgottumukkala@emulex.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2013-11-08RDMA/ocrdma: Fix a crash in rmmodNaresh Gottumukkala
1) ocrdma_remove_free() is called from a call_rcu callback funtion context, which can be a bottom-half context. So the code in ocrdma_remove_free should not sleep. But ocrdma_cleanup_hw() can sleep, So move it ocrdma_remove() instead of ocrdma_remove_free. 2) Fix a couple of kbuild test robot warnings. Signed-off-by: Naresh Gottumukkala <bgottumukkala@emulex.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2013-11-08RDMA/ocrdma: Silence an integer underflow warningDan Carpenter
We recently added a cap on "max_wqe_allocated" in 43a6b4025c ('RDMA/ocrdma: Create IRD queue fix'). My static checker complains that the cap has a problem because it casts large values to negative. "attrs->cap.max_send_wr" is a u32. It comes from the user, but it's capped in ocrdma_check_qp_params() so it can't wrap here. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2013-10-14IB: Remove unnecessary semicolonsJoe Perches
These aren't necessary after switch blocks. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2013-09-03RDMA/ocrdma: Fix compiler warning about int/pointer size mismatchRoland Dreier
Fix: drivers/infiniband/hw/ocrdma/ocrdma_verbs.c: In function 'ocrdma_build_fr': >> drivers/infiniband/hw/ocrdma/ocrdma_verbs.c:1832:7: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] mr = (struct ocrdma_mr *)qp->dev->stag_arr[(hdr->lkey >> 8) & ^ drivers/infiniband/hw/ocrdma/ocrdma_verbs.c: In function 'ocrdma_alloc_frmr': >> drivers/infiniband/hw/ocrdma/ocrdma_verbs.c:2661:64: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] dev->stag_arr[(mr->hwmr.lkey >> 8) & (OCRDMA_MAX_STAG - 1)] = (u64) mr; Reported-by: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2013-09-02RDMA/ocrdma: Fix passing wrong opcode to modify_srqNaresh Gottumukkala
Fix passing wrong opcode to ocrdma_modify_srq and query SRQ. Signed-off-by: Naresh Gottumukkala <bgottumukkala@emulex.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2013-09-02RDMA/ocrdma: Fill PVID in UMC caseNaresh Gottumukkala
In UMC case, driver needs to fill PVID in the address vector template for UD traffic. Signed-off-by: Naresh Gottumukkala <bgottumukkala@emulex.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2013-09-02RDMA/ocrdma: Add ABI versioning supportNaresh Gottumukkala
Add ABI versioning support between driver and userspace library. Signed-off-by: Naresh Gottumukkala <bgottumukkala@emulex.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2013-09-02RDMA/ocrdma: Consider multiple SGES in case of DPPNaresh Gottumukkala
While posting inline DPP data, we are not considering multiple sges. Fix this. Signed-off-by: Naresh Gottumukkala <bgottumukkala@emulex.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
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