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path: root/drivers/infiniband/hw/mlx5
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2014-02-06IB/mlx5: Fix RC transport send queue overhead computationEli Cohen1-1/+3
Fix the RC QPs send queue overhead computation to take into account two additional segments in the WQE which are needed for registration operations. Signed-off-by: Eli Cohen <[email protected]> Signed-off-by: Roland Dreier <[email protected]>
2014-01-22Merge branch 'ip-roce' into for-nextRoland Dreier1-1/+2
Conflicts: drivers/infiniband/hw/mlx4/main.c
2014-01-22IB/mlx5: Verify reserved fields are clearedEli Cohen1-2/+6
Verify that reserved fields in struct mlx5_ib_resize_cq are cleared before continuing execution of the verb. This is required to allow making use of this area in future revisions. Signed-off-by: Yann Droneaud <[email protected]> Signed-off-by: Eli Cohen <[email protected]> Signed-off-by: Roland Dreier <[email protected]>
2014-01-22IB/mlx5: Allow creation of QPs with zero-length work queuesEli Cohen1-20/+29
The current code attmepts to call ib_umem_get() even if the length is zero, which causes a failure. Since the spec allows zero length work queues, change the code so we don't call ib_umem_get() in those cases. Signed-off-by: Eli Cohen <[email protected]> Signed-off-by: Roland Dreier <[email protected]>
2014-01-22IB/mlx5: Add support for resize CQEli Cohen3-18/+270
Implement resize CQ which is a mandatory verb in mlx5. Signed-off-by: Eli Cohen <[email protected]> Signed-off-by: Roland Dreier <[email protected]>
2014-01-22IB/mlx5: Implement modify CQEli Cohen1-1/+25
Modify CQ is used by ULPs like IPoIB to change moderation parameters. This patch adds support in mlx5. Signed-off-by: Eli Cohen <[email protected]> Signed-off-by: Roland Dreier <[email protected]>
2014-01-22IB/mlx5: Make sure doorbell record is visible before doorbellEli Cohen1-0/+4
Put a wmb() to make sure the doorbell record is visible to the HCA before we hit doorbell. Signed-off-by: Eli Cohen <[email protected]> Signed-off-by: Roland Dreier <[email protected]>
2014-01-14IB/core: Ethernet L2 attributes in verbs/cm structuresMatan Barak1-1/+2
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 <[email protected]> Signed-off-by: Or Gerlitz <[email protected]> Signed-off-by: Roland Dreier <[email protected]>
2014-01-14IB/mlx5: Fix micro UAR allocatorEli Cohen2-24/+66
The micro UAR (uuar) allocator had a bug which resulted from the fact that in each UAR we only have two micro UARs avaialable, those at index 0 and 1. This patch defines iterators to aid in traversing the list of available micro UARs when allocating a uuar. In addition, change the logic in create_user_qp() so that if high class allocation fails (high class means lower latency), we revert to medium class and not to the low class. Signed-off-by: Eli Cohen <[email protected]> Signed-off-by: Roland Dreier <[email protected]>
2014-01-14IB/mlx5: Remove unused code in mr.cEli Cohen2-2/+0
The variable start in struct mlx5_ib_mr is never used. Remove it. Signed-off-by: Eli Cohen <[email protected]> Signed-off-by: Roland Dreier <[email protected]>
2013-11-15IB/mlx5: Fix page shift in create CQ for userspaceEli Cohen1-1/+1
When creating a CQ, we must use mlx5 adapter page shift. Signed-off-by: Eli Cohen <[email protected]> Signed-off-by: Roland Dreier <[email protected]>
2013-11-15IB/mlx5: Remove dead codeEli Cohen1-6/+0
The value of the local variable index is never used in reg_mr_callback(). Signed-off-by: Eli Cohen <[email protected]> [ Remove now-unused variable delta too. - Roland ] Signed-off-by: Roland Dreier <[email protected]>
2013-11-08mlx5: Use enum to indicate adapter page sizeEli Cohen3-5/+6
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 <[email protected]> Signed-off-by: Roland Dreier <[email protected]>
2013-11-08IB/mlx5: Update opt param mask for RTS2RTSEli Cohen1-2/+4
RTS to RTS transition should allow update of alternate path. Signed-off-by: Eli Cohen <[email protected]> Signed-off-by: Roland Dreier <[email protected]>
2013-11-08IB/mlx5: Remove "Always false" comparisonEli Cohen1-1/+1
mlx5_cur and mlx5_new cannot have negative values so remove the redundant condition. Signed-off-by: Eli Cohen <[email protected]> Signed-off-by: Roland Dreier <[email protected]>
2013-11-08IB/mlx5: Remove dead code in mr.cEli Cohen1-7/+3
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 <[email protected]> Signed-off-by: Roland Dreier <[email protected]>
2013-11-08mlx5: Support communicating arbitrary host page size to firmwareEli Cohen3-5/+5
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 <[email protected]> Signed-off-by: Roland Dreier <[email protected]>
2013-11-08IB/mlx5: Fix srq free in destroy qpMoshe Lazer1-12/+4
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 <[email protected]> Signed-off-by: Eli Cohen <[email protected]> Signed-off-by: Roland Dreier <[email protected]>
2013-11-08IB/mlx5: Simplify mlx5_ib_destroy_srqEli Cohen1-3/+1
Make use of destroy_srq_kernel() to clear SRQ resouces. Signed-off-by: Eli Cohen <[email protected]> Signed-off-by: Roland Dreier <[email protected]>
2013-11-08IB/mlx5: Fix overflow check in IB_WR_FAST_REG_MREli Cohen1-0/+4
Make sure not to overflow when reading the page list from struct ib_fast_reg_page_list. Signed-off-by: Eli Cohen <[email protected]> Signed-off-by: Roland Dreier <[email protected]>
2013-11-08IB/mlx5: Multithreaded create MREli Cohen4-40/+136
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 <[email protected]> Signed-off-by: Roland Dreier <[email protected]>
2013-11-08IB/mlx5: Fix check of number of entries in create CQEli Cohen1-1/+4
Verify that the value is non negative before rounding up to power of 2. Signed-off-by: Eli Cohen <[email protected]> Signed-off-by: Roland Dreier <[email protected]>
2013-10-10IB/mlx5: Ensure proper synchronization accessing memoryEli Cohen1-3/+4
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 <[email protected]> Signed-off-by: Eli Cohen <[email protected]> Signed-off-by: Roland Dreier <[email protected]>
2013-10-10IB/mlx5: Fix alignment of reg umr gather buffersEli Cohen1-3/+8
The hardware requires that gather buffers for UMR work requests be aligned to 2K. Signed-off-by: Eli Cohen <[email protected]> Signed-off-by: Roland Dreier <[email protected]>
2013-10-10IB/mlx5: Fix eq names to display nicely in /proc/interruptsSagi Grimberg1-3/+3
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 <[email protected]> Signed-off-by: Eli Cohen <[email protected]> Signed-off-by: Roland Dreier <[email protected]>
2013-10-10IB/mlx5: Fix opt param mask according to firmware specEli Cohen1-0/+9
Failed to configure opt mask to configure rre from init to rtr. Signed-off-by: Eli Cohen <[email protected]> Signed-off-by: Roland Dreier <[email protected]>
2013-10-10mlx5: Fix opt param mask for sq err to rts transitionEli Cohen1-0/+1
Add missing entry in the table for UC transport. Signed-off-by: Eli Cohen <[email protected]> Signed-off-by: Roland Dreier <[email protected]>
2013-10-10IB/mlx5: Disable atomic operationsEli Cohen2-47/+6
Currently Atomic operations don't work properly. Disable them for the time being. Signed-off-by: Eli Cohen <[email protected]> Signed-off-by: Roland Dreier <[email protected]>
2013-10-10IB/mlx5: Avoid async events on invalid port numberEli Cohen1-0/+5
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 <[email protected]> Signed-off-by: Roland Dreier <[email protected]>
2013-10-10IB/mlx5: Decrease memory consumption of mr cachesEli Cohen1-35/+22
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 <[email protected]> Signed-off-by: Roland Dreier <[email protected]>
2013-10-10IB/mlx5: Fix memory leak in mlx5_ib_create_srqMoshe Lazer1-1/+3
The patch fixes the rollback in case of failure in creating SRQ. Signed-off-by: Moshe Lazer <[email protected]> Signed-off-by: Eli Cohen <[email protected]> Signed-off-by: Roland Dreier <[email protected]>
2013-10-10IB/mlx5: Flush cache workqueue before destroying itMoshe Lazer1-1/+4
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 <[email protected]> Signed-off-by: Eli Cohen <[email protected]> Signed-off-by: Roland Dreier <[email protected]>
2013-10-10IB/mlx5: Fix send work queue size calculationEli Cohen1-6/+16
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 <[email protected]> Signed-off-by: Roland Dreier <[email protected]>
2013-07-31mlx5_core: Variable may be used uninitializedAndi Shyti1-1/+1
In the sq_overhead() function, if qp_typ is equal to IB_QPT_RC, size will be used uninitialized. Signed-off-by: Andi Shyti <[email protected]> Acked-by: Eli Cohen <[email protected]> Signed-off-by: Roland Dreier <[email protected]>
2013-07-31IB/mlx5: Fix stack info leak in mlx5_ib_alloc_ucontext()Dan Carpenter1-1/+2
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 <[email protected]> Acked-by: Eli Cohen <[email protected]> Signed-off-by: Roland Dreier <[email protected]>
2013-07-31IB/mlx5: Fix error return code in init_one()Wei Yongjun1-3/+5
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 <[email protected]> Signed-off-by: Roland Dreier <[email protected]>
2013-07-11mlx5: Return -EFAULT instead of -EPERMDan Carpenter1-4/+4
For copy_to/from_user() failure, the correct error code is -EFAULT not -EPERM. Signed-off-by: Dan Carpenter <[email protected]> Acked-by: Or Gerlitz <[email protected]> Signed-off-by: Roland Dreier <[email protected]>
2013-07-08IB/mlx5: Make profile[] static in main.cRoland Dreier1-1/+1
Signed-off-by: Roland Dreier <[email protected]>
2013-07-08mlx5: Add driver for Mellanox Connect-IB adaptersEli Cohen13-0/+7523
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 <[email protected]> Signed-off-by: Jack Morgenstein <[email protected]> Signed-off-by: Or Gerlitz <[email protected]> [ Merge in coccinelle fixes from Fengguang Wu <[email protected]>. - Roland ] Signed-off-by: Roland Dreier <[email protected]>
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