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path: root/drivers/infiniband/hw/mlx5
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* IB/mlx5: Fix page shift in create CQ for userspaceEli Cohen2013-11-15
| | | | | | | When creating a CQ, we must use mlx5 adapter page shift. Signed-off-by: Eli Cohen <eli@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
* IB/mlx5: Remove dead codeEli Cohen2013-11-15
| | | | | | | | | | The value of the local variable index is never used in reg_mr_callback(). Signed-off-by: Eli Cohen <eli@mellanox.com> [ Remove now-unused variable delta too. - Roland ] Signed-off-by: Roland Dreier <roland@purestorage.com>
* mlx5: Use enum to indicate adapter page sizeEli Cohen2013-11-08
| | | | | | | | | The Connect-IB adapter has an inherent page size which equals 4K. Define an new enum that equals the page shift and use it instead of using the value 12 throughout the code. Signed-off-by: Eli Cohen <eli@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
* IB/mlx5: Update opt param mask for RTS2RTSEli Cohen2013-11-08
| | | | | | | RTS to RTS transition should allow update of alternate path. Signed-off-by: Eli Cohen <eli@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
* IB/mlx5: Remove "Always false" comparisonEli Cohen2013-11-08
| | | | | | | | mlx5_cur and mlx5_new cannot have negative values so remove the redundant condition. Signed-off-by: Eli Cohen <eli@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
* IB/mlx5: Remove dead code in mr.cEli Cohen2013-11-08
| | | | | | | | In mlx5_mr_cache_init() the size variable is not used so remove it to avoid compiler warnings when running with make W=1. Signed-off-by: Eli Cohen <eli@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
* mlx5: Support communicating arbitrary host page size to firmwareEli Cohen2013-11-08
| | | | | | | | | | | Connect-IB firmware requires 4K pages to be communicated with the driver. This patch breaks larger pages to 4K units to enable support for architectures utilizing larger page size, such as PowerPC. This patch also fixes several places that referred to PAGE_SHIFT instead of explicit 12 which is the inherent page shift on Connect-IB. Signed-off-by: Eli Cohen <eli@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
* IB/mlx5: Fix srq free in destroy qpMoshe Lazer2013-11-08
| | | | | | | | | | | | | On destroy QP the driver walks over the relevant CQ and removes CQEs reported for the destroyed QP. It also frees the related SRQ entry without checking that this is actually an SRQ-related CQE. In case of a CQ used for both send and receive QP, we could free SRQ entries for send CQEs. This patch resolves this issue by verifying that this is a SRQ related CQE by checking the SRQ number in the CQE is not zero. Signed-off-by: Moshe Lazer <moshel@mellanox.com> Signed-off-by: Eli Cohen <eli@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
* IB/mlx5: Simplify mlx5_ib_destroy_srqEli Cohen2013-11-08
| | | | | | | Make use of destroy_srq_kernel() to clear SRQ resouces. Signed-off-by: Eli Cohen <eli@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
* IB/mlx5: Fix overflow check in IB_WR_FAST_REG_MREli Cohen2013-11-08
| | | | | | | | Make sure not to overflow when reading the page list from struct ib_fast_reg_page_list. Signed-off-by: Eli Cohen <eli@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
* IB/mlx5: Multithreaded create MREli Cohen2013-11-08
| | | | | | | | | | Use asynchronous commands to execute up to eight concurrent create MR commands. This is to fill memory caches faster so we keep consuming from there. Also, increase timeout for shrinking caches to five minutes. Signed-off-by: Eli Cohen <eli@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
* IB/mlx5: Fix check of number of entries in create CQEli Cohen2013-11-08
| | | | | | | Verify that the value is non negative before rounding up to power of 2. Signed-off-by: Eli Cohen <eli@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
* IB/mlx5: Ensure proper synchronization accessing memoryEli Cohen2013-10-10
| | | | | | | | | Call mlx5_ib_populate_pas() before mapping the DMA buffer to ensure the hardware reads the values written by the CPU. Found by: Haggai Eran <haggaie@mellanox.com> Signed-off-by: Eli Cohen <eli@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
* IB/mlx5: Fix alignment of reg umr gather buffersEli Cohen2013-10-10
| | | | | | | | The hardware requires that gather buffers for UMR work requests be aligned to 2K. Signed-off-by: Eli Cohen <eli@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
* IB/mlx5: Fix eq names to display nicely in /proc/interruptsSagi Grimberg2013-10-10
| | | | | | | | | It's helpful for a driver to put the pci slot name in its interrupt names, so /proc/interrupts will show the pci slot of the device. Signed-off-by: Sagi Grimberg <sagig@mellanox.com> Signed-off-by: Eli Cohen <eli@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
* IB/mlx5: Fix opt param mask according to firmware specEli Cohen2013-10-10
| | | | | | | Failed to configure opt mask to configure rre from init to rtr. Signed-off-by: Eli Cohen <eli@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
* mlx5: Fix opt param mask for sq err to rts transitionEli Cohen2013-10-10
| | | | | | | Add missing entry in the table for UC transport. Signed-off-by: Eli Cohen <eli@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
* IB/mlx5: Disable atomic operationsEli Cohen2013-10-10
| | | | | | | | Currently Atomic operations don't work properly. Disable them for the time being. Signed-off-by: Eli Cohen <eli@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
* IB/mlx5: Avoid async events on invalid port numberEli Cohen2013-10-10
| | | | | | | | | On a single ported Connect-IB, its possible for the firmware to issue events on the non-existing 2nd port. Make sure to ignore events generated for such ports. Signed-off-by: Eli Cohen <eli@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
* IB/mlx5: Decrease memory consumption of mr cachesEli Cohen2013-10-10
| | | | | | | | | Change the logic so we do not allocate memory nor map the device before actually posting to the REG_UMR QP. In addition, unmap and free the memory after we get completion. Signed-off-by: Eli Cohen <eli@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
* IB/mlx5: Fix memory leak in mlx5_ib_create_srqMoshe Lazer2013-10-10
| | | | | | | | The patch fixes the rollback in case of failure in creating SRQ. Signed-off-by: Moshe Lazer <moshel@mellanox.com> Signed-off-by: Eli Cohen <eli@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
* IB/mlx5: Flush cache workqueue before destroying itMoshe Lazer2013-10-10
| | | | | | | | | | Destroying the workqueue without flushing it first can lead to a case in which the kernel tries to push a delayed work to the workqueue which does not exist anymore. Signed-off-by: Moshe Lazer <moshel@mellanox.com> Signed-off-by: Eli Cohen <eli@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
* IB/mlx5: Fix send work queue size calculationEli Cohen2013-10-10
| | | | | | | | | | | | | | 1. Make sure wqe_cnt does not exceed the limit published by firmware. 2. There is no requirement that the number of outstanding work requests will be a power of two. Remove the ilog2 in the calculation of sq.max_post to fix that. 3. Add case for IB_QPT_XRC_TGT in sq_overhead and return 0 as XRC target QPs do not have a send queue. Signed-off-by: Eli Cohen <eli@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
* mlx5_core: Variable may be used uninitializedAndi Shyti2013-07-31
| | | | | | | | | In the sq_overhead() function, if qp_typ is equal to IB_QPT_RC, size will be used uninitialized. Signed-off-by: Andi Shyti <andi@etezian.org> Acked-by: Eli Cohen <eli@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
* IB/mlx5: Fix stack info leak in mlx5_ib_alloc_ucontext()Dan Carpenter2013-07-31
| | | | | | | | | We don't set "resp.reserved". Since it's at the end of the struct that means we don't have to copy it to the user. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Eli Cohen <eli@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
* IB/mlx5: Fix error return code in init_one()Wei Yongjun2013-07-31
| | | | | | | | Fix to return a negative error code from the error handling case instead of 0, as done elsewhere in this function. Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: Roland Dreier <roland@purestorage.com>
* mlx5: Return -EFAULT instead of -EPERMDan Carpenter2013-07-11
| | | | | | | | | For copy_to/from_user() failure, the correct error code is -EFAULT not -EPERM. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
* IB/mlx5: Make profile[] static in main.cRoland Dreier2013-07-08
| | | | Signed-off-by: Roland Dreier <roland@purestorage.com>
* mlx5: Add driver for Mellanox Connect-IB adaptersEli Cohen2013-07-08
The driver is comprised of two kernel modules: mlx5_ib and mlx5_core. This partitioning resembles what we have for mlx4, except that mlx5_ib is the pci device driver and not mlx5_core. mlx5_core is essentially a library that provides general functionality that is intended to be used by other Mellanox devices that will be introduced in the future. mlx5_ib has a similar role as any hardware device under drivers/infiniband/hw. Signed-off-by: Eli Cohen <eli@mellanox.com> Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> [ Merge in coccinelle fixes from Fengguang Wu <fengguang.wu@intel.com>. - Roland ] Signed-off-by: Roland Dreier <roland@purestorage.com>
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