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| | | | | | | | | * | RDMA/ocrdma: Update sli data structure for endiannessDevesh Sharma2014-08-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Update the sli specific mailbox command request/response data sturcures to fix endianness issues. Signed-off-by: Devesh Sharma <devesh.sharma@emulex.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
| | | | | | | | | * | RDMA/ocrdma: Obtain SL from device structureDevesh Sharma2014-08-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently, driver obtains service level value from ah_attr->sl field. However, this field is set to zero all the times from rdma-cm. This patch allows create_ah to obtain service level from dev->sl. Signed-off-by: Devesh Sharma <devesh.sharma@emulex.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
| | | | | | | | | * | RDMA/ocrdma: Update the ocrdma module version stringSelvin Xavier2014-08-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Selvin Xavier <selvin.xavier@emulex.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
| | | | | | | | | * | RDMA/ocrdma: Fix a sparse warningSelvin Xavier2014-08-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix the warning about the usage of plain integer as NULL pointer. Signed-off-by: Selvin Xavier <selvin.xavier@emulex.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
| | | | | | | | | * | RDMA/ocrdma: Initialize the GID table while registering the deviceSelvin Xavier2014-08-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Current GID table gets updated only at the time of inet notification. Fix this by initializing the table at the time of device registration. Signed-off-by: Selvin Xavier <selvin.xavier@emulex.com> Signed-off-by: Devesh Sharma <devesh.sharma@emulex.com> Signed-off-by: Somnath Kotur <somnath.kotur@emulex.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
| | | | | | | | | * | RDMA/ocrdma: Increase the size of STAG array in dev structure to 16KSelvin Xavier2014-08-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | HW can support 16K STAG entries. Change this max limit. Also, move this array out of ocrdma_dev to reduce the size of this structure. 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>
| | | | | | | | | * | RDMA/ocrdma: Add missing adapter mailbox opcodesSelvin Xavier2014-08-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix the Statistics command opcode. Also specify the opcode of each command for better readablilty. 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>
| | | | | | | | | * | RDMA/ocrdma: Return proper value for max_mr_sizeMitesh Ahuja2014-08-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Update the max_mr_size with proper value. Corrected the response structure of query config mailbox command. Signed-off-by: Mitesh Ahuja <mitesh.ahuja@emulex.Com> Signed-off-by: Selvin Xavier <selvin.xavier@emulex.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
| | | | | | | | | * | RDMA/ocrdma: Do proper cleanup even if FW is in error stateMitesh Ahuja2014-08-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If any mailbox command reports timeout, save the state in the driver, to prevent issuing any more commands to the HW. Do proper cleanup even if FW is in error state. Signed-off-by: Mitesh Ahuja <mitesh.ahuja@emulex.Com> Signed-off-by: Selvin Xavier <selvin.xavier@emulex.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
| | | | | | | | | * | RDMA/ocrdma: Allow only SEND opcode in case of UD QPsMitesh Ahuja2014-08-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
| | | | | | | | | * | RDMA/ocrdma: Avoid reporting wrong completions in case of error CQEsSelvin Xavier2014-08-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
| | | | | | | | | * | RDMA/ocrdma: Delete AH table if ocrdma_init_hw fails after AH table creationDevesh Sharma2014-08-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
| | | | | | | | | * | RDMA/ocrdma: Remove hardcoding of the max DPP QPs supportedDevesh Sharma2014-08-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
| | | | | | | | | * | RDMA/ocrdma: Handle shutdown event from be2net driverDevesh Sharma2014-08-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
| | | | | | | | | * | RDMA/ocrdma: Add hca_type and fixing fw_version string in device atrributesSelvin Xavier2014-08-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
| | | | | | | | | * | RDMA/ocrdma: Query and initalize the PFC SLSelvin Xavier2014-08-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
| | | | | | | | | * | RDMA/ocrdma: Avoid posting DPP requests for RDMA READDevesh Sharma2014-08-01
| | | | | |_|_|_|/ / | | | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
| | | | | | | | * | IB/mlx5: Use ARRAY_SIZE instead of sizeof/sizeof[0]Fabian Frederick2014-08-13
| | | | | |_|_|/ / | | | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Acked-by: Eli Cohen <eli@mellanox.com> Signed-off-by: Fabian Frederick <fabf@skynet.be> Signed-off-by: Doug Ledford <dledford@redhat.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
| | | | | | | * | IB/mlx4: Use ARRAY_SIZE instead of sizeof/sizeof[0]Fabian Frederick2014-08-13
| | | | | |_|/ / | | | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Fabian Frederick <fabf@skynet.be> Signed-off-by: Doug Ledford <dledford@redhat.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
| | | | | | * | RDMA/amso1100: Check for integer overflow in c2_alloc_cq_buf()Dan Carpenter2014-08-13
| | | | | |/ / | | | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is a static checker fix. The static checker says that q_size comes from the user and can be any 32 bit value. The call tree is: --> ib_uverbs_create_cq() --> c2_create_cq() --> c2_init_cq() Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Doug Ledford <dledford@redhat.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
| | | | | * | IB/mad: add new ioctl to ABI to support new registration optionsIra Weiny2014-08-10
| | | | |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Registrations options are specified through flags. Definitions of flags will be in subsequent patches. Signed-off-by: Ira Weiny <ira.weiny@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
| | | * / / IB/ipath: Add P_Key change event supportOr Gerlitz2014-08-05
| | | |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Deliver P_Key_CHANGE event through the relevant IB device when the local pkey table changes. Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
| | * / / RDMA/cxgb4: Only call CQ completion handler if it is armedSteve Wise2014-08-01
| | |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The function __flush_qp() always calls the ULP's CQ completion handler functions even if the CQ was not armed. This can crash the system if the function pointer is NULL. The iSER ULP behaves this way: no completion handler and never arm the CQ for notification. So now we track whether the CQ is armed at flush time and only call the completion handlers if their CQs were armed. Also, if the RCQ and SCQ are the same CQ, the completion handler is getting called twice. It should only be called once after all SQ and RQ WRs are flushed from the QP. So rearrange the logic to fix this. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
| * / / IB/mlx4_ib: Add support for user MR re-registrationMatan Barak2014-08-01
| |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This enables the user to change the protection domain, access flags and translation (address and length) of the MR. Use basic mlx4_core helper functions to get, update and set MPT and MTT objects according to the required modifications. Signed-off-by: Matan Barak <matanb@mellanox.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
* | / infiniband: use pci_zalloc_consistentJoe Perches2014-08-08
| |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | Remove the now unnecessary memset too. Signed-off-by: Joe Perches <joe@perches.com> Cc: Tom Tucker <tom@opengridcomputing.com> Acked-by: Steve Wise <swise@opengridcomputing.com> Cc: Roland Dreier <roland@kernel.org> Cc: Sean Hefty <sean.hefty@intel.com> Cc: Hal Rosenstock <hal.rosenstock@gmail.com> Cc: Faisal Latif <faisal.latif@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | mlx5: Adjust events to use unsigned long param instead of void *Jack Morgenstein2014-07-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In the event flow, we currently pass only a port number in the void *data argument. Rather than pass a pointer to the event handlers, we should use an "unsigned long" parameter, and pass the port number value directly. In the future, if necessary for some events, we can use the unsigned long parameter to pass a pointer. Based on a patch by Eli Cohen <eli@mellanox.com> Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Eli Cohen <eli@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | mlx5: minor fixes (mainly avoidance of hidden casts)Jack Morgenstein2014-07-30
| | | | | | | | | | | | | | | | | | | | | | | | There were many places where parameters which should be u8/u16 were integer type. Additionally, in 2 places, a check for a non-null pointer was added before dereferencing the pointer (this is actually a bug fix). Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Eli Cohen <eli@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | mlx5: Move pci device handling from mlx5_ib to mlx5_coreJack Morgenstein2014-07-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In preparation for a new mlx5 device which is VPI (i.e., ports can be either IB or ETH), move the pci device functionality from mlx5_ib to mlx5_core. This involves the following changes: 1. Move mlx5_core_dev struct out of mlx5_ib_dev. mlx5_core_dev is now an independent structure maintained by mlx5_core. mlx5_ib_dev now has a pointer to that struct. This requires changing a lot of places where the core_dev struct was accessed via mlx5_ib_dev (now, this needs to be a pointer dereference). 2. All PCI initializations are now done in mlx5_core. Thus, it is now mlx5_core which does pci_register_device (and not mlx5_ib, as was previously). 3. mlx5_ib now registers itself with mlx5_core as an "interface" driver. This is very similar to the mechanism employed for the mlx4 (ConnectX) driver. Once the HCA is initialized (by mlx5_core), it invokes the interface drivers to do their initializations. 4. There is a new event handler which the core registers: mlx5_core_event(). This event handler invokes the event handlers registered by the interfaces. Based on a patch by Eli Cohen <eli@mellanox.com> Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Eli Cohen <eli@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller2014-07-22
|\| | | | | | | | | | | | | | | | | Conflicts: drivers/infiniband/hw/cxgb4/device.c The cxgb4 conflict was simply overlapping changes. Signed-off-by: David S. Miller <davem@davemloft.net>
| * Merge branches 'cxgb4' and 'mlx5' into for-nextRoland Dreier2014-07-17
| |\
| | * IB/mlx5: Enable "block multicast loopback" for kernel consumersOr Gerlitz2014-07-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In commit f360d88a2efd, we advertise blocking multicast loopback to both kernel and userspace consumers, but don't allow kernel consumers (e.g IPoIB) to use it with their UD QPs. Fix that. Fixes: f360d88a2efd ("IB/mlx5: Add block multicast loopback support") Reported-by: Haggai Eran <haggaie@mellanox.com> Signed-off-by: Eli Cohen <eli@mellanox.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
| * | RDMA/cxgb4: Call iwpm_init() only onceSteve Wise2014-07-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We need to only register with the iwpm core once. Currently it is being done for every adapter, which causes a failure for each adapter but the first, making multiple adapters unusable. Fixes: 9eccfe109b27 ("RDMA/cxgb4: Add support for iWARP Port Mapper user space service") Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
| * | RDMA/cxgb4: Initialize the device status pageSteve Wise2014-07-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The status page is mapped to user processes and allows sharing the device state between the kernel and user processes. This state isn't getting initialized and thus intermittently causes problems. Namely, the user process can mistakenly think the user doorbell writes are disabled which causes SQ work requests to never get fetched by HW. Fixes: 05eb23893c2c ("cxgb4/iw_cxgb4: Doorbell Drop Avoidance Bug Fixes"). Signed-off-by: Steve Wise <swise@opengridcomputing.com> Cc: <stable@vger.kernel.org> # v3.15 Signed-off-by: Roland Dreier <roland@purestorage.com>
| * | RDMA/cxgb4: Clean up connection on ARP errorHariprasad S2014-07-08
| | | | | | | | | | | | | | | | | | | | | | | | Based on origninal work by Steve Wise <swise@opengridcomputing.com> Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
| * | RDMA/cxgb4: Fix skb_leak in reject_cr()Hariprasad S2014-07-08
| |/ | | | | | | | | | | | | | | Based on origninal work by Steve Wise <swise@opengridcomputing.com> Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
* | iw_cxgb4: Don't limit TPTE count to 32KBHariprasad Shenai2014-07-21
| | | | | | | | | | | | | | | | Use the size advertised by FW Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | iw_cxgb4: advertise the correct device max attributesHariprasad Shenai2014-07-21
| | | | | | | | | | | | | | | | | | | | | | Advertise the actual max limits for things like qp depths, number of qps, cqs, etc. Clean up the queue allocation for qps and cqs. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | iw_cxgb4: Support query_qp() verbHariprasad Shenai2014-07-21
| | | | | | | | | | | | Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | iw_cxgb4: log detailed warnings for negative adviceHariprasad Shenai2014-07-21
| | | | | | | | | | | | Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | iw_cxgb4: fix for 64-bit integer divisionHariprasad Shenai2014-07-17
| | | | | | | | | | | | | | | | Fixed error introduced in commit id 7730b4c (" cxgb4/iw_cxgb4: work request logging feature") while compiling on 32 bit architecture reported by kbuild. Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | cxgb4/iw_cxgb4: Move common defines to cxgb4Anish Bhatt2014-07-17
| | | | | | | | | | | | | | | | This define is used by cxgb4i and iw_cxgb4, moving to avoid code duplication Signed-off-by: Anish Bhatt <anish@chelsio.com> Acked-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | cxgb4/iw_cxgb4: work request logging featureHariprasad Shenai2014-07-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This commit enhances the iwarp driver to optionally keep a log of rdma work request timining data for kernel mode QPs. If iw_cxgb4 module option c4iw_wr_log is set to non-zero, each work request is tracked and timing data maintained in a rolling log that is 4096 entries deep by default. Module option c4iw_wr_log_size_order allows specifing a log2 size to use instead of the default order of 12 (4096 entries). Both module options are read-only and must be passed in at module load time to set them. IE: modprobe iw_cxgb4 c4iw_wr_log=1 c4iw_wr_log_size_order=10 The timing data is viewable via the iw_cxgb4 debugfs file "wr_log". Writing anything to this file will clear all the timing data. Data tracked includes: - The host time when the work request was posted, just before ringing the doorbell. The host time when the completion was polled by the application. This is also the time the log entry is created. The delta of these two times is the amount of time took processing the work request. - The qid of the EQ used to post the work request. - The work request opcode. - The cqe wr_id field. For sq completions requests this is the swsqe index. For recv completions this is the MSN of the ingress SEND. This value can be used to match log entries from this log with firmware flowc event entries. - The sge timestamp value just before ringing the doorbell when posting, the sge timestamp value just after polling the completion, and CQE.timestamp field from the completion itself. With these three timestamps we can track the latency from post to poll, and the amount of time the completion resided in the CQ before being reaped by the application. With debug firmware, the sge timestamp is also logged by firmware in its flowc history so that we can compute the latency from posting the work request until the firmware sees it. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | cxgb4/iw_cxgb4: display TPTE on errorsHariprasad Shenai2014-07-15
| | | | | | | | | | | | | | | | | | | | | | With ingress WRITE or READ RESPONSE errors, HW provides the offending stag from the packet. This patch adds logic to log the parsed TPTE in this case. cxgb4 now exports a function to read a TPTE entry from adapter memory. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | cxgb4/iw_cxgb4: use firmware ord/ird resource limitsHariprasad Shenai2014-07-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Advertise a larger max read queue depth for qps, and gather the resource limits from fw and use them to avoid exhaustinq all the resources. Design: cxgb4: Obtain the max_ordird_qp and max_ird_adapter device params from FW at init time and pass them up to the ULDs when they attach. If these parameters are not available, due to older firmware, then hard-code the values based on the known values for older firmware. iw_cxgb4: Fix the c4iw_query_device() to report these correct values based on adapter parameters. ibv_query_device() will always return: max_qp_rd_atom = max_qp_init_rd_atom = min(module_max, max_ordird_qp) max_res_rd_atom = max_ird_adapter Bump up the per qp max module option to 32, allowing it to be increased by the user up to the device max of max_ordird_qp. 32 seems to be sufficient to maximize throughput for streaming read benchmarks. Fail connection setup if the negotiated IRD exhausts the available adapter ird resources. So the driver will track the amount of ird resource in use and not send an RI_WR/INIT to FW that would reduce the available ird resources below zero. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | iw_cxgb4: Detect Ing. Padding Boundary at run-timeHariprasad Shenai2014-07-15
| | | | | | | | | | | | | | | | | | Updates iw_cxgb4 to determine the Ingress Padding Boundary from cxgb4_lld_info, and take subsequent actions. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: set name_assign_type in alloc_netdev()Tom Gundersen2014-07-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Extend alloc_netdev{,_mq{,s}}() to take name_assign_type as argument, and convert all users to pass NET_NAME_UNKNOWN. Coccinelle patch: @@ expression sizeof_priv, name, setup, txqs, rxqs, count; @@ ( -alloc_netdev_mqs(sizeof_priv, name, setup, txqs, rxqs) +alloc_netdev_mqs(sizeof_priv, name, NET_NAME_UNKNOWN, setup, txqs, rxqs) | -alloc_netdev_mq(sizeof_priv, name, setup, count) +alloc_netdev_mq(sizeof_priv, name, NET_NAME_UNKNOWN, setup, count) | -alloc_netdev(sizeof_priv, name, setup) +alloc_netdev(sizeof_priv, name, NET_NAME_UNKNOWN, setup) ) v9: move comments here from the wrong commit Signed-off-by: Tom Gundersen <teg@jklm.no> Reviewed-by: David Herrmann <dh.herrmann@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | rdma/cxgb4: Fixes cxgb4 probe failure in VM when PF is exposed through PCI ↵Hariprasad Shenai2014-07-01
|/ | | | | | | | | | | | | | | | | | Passthrough Change logic which determines our Physical Function at PCI Probe time. Now we read the PL_WHOAMI register and get the Physical Function. Pass Physical Function to Upper Layer Drivers in lld_info structure in the new field "pf" added to lld_info. This is useful for the cases where the PF, say PF4, is attached to a Virtual Machine via some form of "PCI Pass Through" technology and the PCI Function shows up as PF0 in the VM. Based on original work by Casey Leedom <leedom@chelsio.com> Signed-off-by: Casey Leedom <leedom@chelsio.com> Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-nextLinus Torvalds2014-06-12
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull networking updates from David Miller: 1) Seccomp BPF filters can now be JIT'd, from Alexei Starovoitov. 2) Multiqueue support in xen-netback and xen-netfront, from Andrew J Benniston. 3) Allow tweaking of aggregation settings in cdc_ncm driver, from Bjørn Mork. 4) BPF now has a "random" opcode, from Chema Gonzalez. 5) Add more BPF documentation and improve test framework, from Daniel Borkmann. 6) Support TCP fastopen over ipv6, from Daniel Lee. 7) Add software TSO helper functions and use them to support software TSO in mvneta and mv643xx_eth drivers. From Ezequiel Garcia. 8) Support software TSO in fec driver too, from Nimrod Andy. 9) Add Broadcom SYSTEMPORT driver, from Florian Fainelli. 10) Handle broadcasts more gracefully over macvlan when there are large numbers of interfaces configured, from Herbert Xu. 11) Allow more control over fwmark used for non-socket based responses, from Lorenzo Colitti. 12) Do TCP congestion window limiting based upon measurements, from Neal Cardwell. 13) Support busy polling in SCTP, from Neal Horman. 14) Allow RSS key to be configured via ethtool, from Venkata Duvvuru. 15) Bridge promisc mode handling improvements from Vlad Yasevich. 16) Don't use inetpeer entries to implement ID generation any more, it performs poorly, from Eric Dumazet. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1522 commits) rtnetlink: fix userspace API breakage for iproute2 < v3.9.0 tcp: fixing TLP's FIN recovery net: fec: Add software TSO support net: fec: Add Scatter/gather support net: fec: Increase buffer descriptor entry number net: fec: Factorize feature setting net: fec: Enable IP header hardware checksum net: fec: Factorize the .xmit transmit function bridge: fix compile error when compiling without IPv6 support bridge: fix smatch warning / potential null pointer dereference via-rhine: fix full-duplex with autoneg disable bnx2x: Enlarge the dorq threshold for VFs bnx2x: Check for UNDI in uncommon branch bnx2x: Fix 1G-baseT link bnx2x: Fix link for KR with swapped polarity lane sctp: Fix sk_ack_backlog wrap-around problem net/core: Add VF link state control policy net/fsl: xgmac_mdio is dependent on OF_MDIO net/fsl: Make xgmac_mdio read error message useful net_sched: drr: warn when qdisc is not work conserving ...
| * iw_cxgb4: don't truncate the recv window sizeHariprasad Shenai2014-06-11
| | | | | | | | | | | | | | | | | | | | | | Fixed a bug that shows up with recv window sizes that exceed the size of the RCV_BUFSIZ field in opt0 (>= 1024K). If the recv window exceeds this, then we specify the max possible in opt0, add add the rest in via a RX_DATA_ACK credits. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * iw_cxgb4: Choose appropriate hw mtu index and ISS for iWARP connectionsHariprasad Shenai2014-06-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Select the appropriate hw mtu index and initial sequence number to optimize hw memory performance. Add new cxgb4_best_aligned_mtu() which allows callers to provide enough information to be used to [possibly] select an MTU which will result in the TCP Data Segment Size (AKA Maximum Segment Size) to be an aligned value. If an RTR message exhange is required, then align the ISS to 8B - 1 + 4, so that after the SYN the send seqno will align on a 4B boundary. The RTR message exchange will leave the send seqno aligned on an 8B boundary. If an RTR is not required, then align the ISS to 8B - 1. The goal is to have the send seqno be 8B aligned when we send the first FPDU. Based on original work by Casey Leedom <leeedom@chelsio.com> and Steve Wise <swise@opengridcomputing.com> Signed-off-by: Casey Leedom <leedom@chelsio.com> Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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