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author | Jason Gunthorpe <jgg@mellanox.com> | 2019-01-29 21:49:31 +0100 |
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committer | Jason Gunthorpe <jgg@mellanox.com> | 2019-01-29 21:49:31 +0100 |
commit | 55c293c38efa4408920e3ff8135a85a0dc2e3f56 (patch) | |
tree | 7933e8bd5f163545eaa497c5b659052a6edf30e1 /drivers/infiniband/hw/cxgb4 | |
parent | infiniband: prefix header search paths with $(srctree)/ (diff) | |
parent | IB/mlx5: Implement DEVX hot unplug for async command FD (diff) | |
download | linux-55c293c38efa4408920e3ff8135a85a0dc2e3f56.tar.xz linux-55c293c38efa4408920e3ff8135a85a0dc2e3f56.zip |
Merge branch 'devx-async' into k.o/for-next
Yishai Hadas says:
Enable DEVX asynchronous query commands
This series enables querying a DEVX object in an asynchronous mode.
The userspace application won't block when calling the firmware and it will be
able to get the response back once that it will be ready.
To enable the above functionality:
- DEVX asynchronous command completion FD object was introduced.
- The applicable file operations were implemented to enable using it by
the user application.
- Query asynchronous method was added to the DEVX object, it will call the
firmware asynchronously and manages the response on the given input FD.
- Hot unplug support was added for the FD to work properly upon
unbind/disassociate.
- mlx5 core fence for asynchronous commands was implemented and used to
prevent racing upon unbind/disassociate.
This branch is based on mlx5-next & v5.0-rc2 due to dependencies, from
git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux
* branch 'devx-async':
IB/mlx5: Implement DEVX hot unplug for async command FD
IB/mlx5: Implement the file ops of DEVX async command FD
IB/mlx5: Introduce async DEVX obj query API
IB/mlx5: Introduce MLX5_IB_OBJECT_DEVX_ASYNC_CMD_FD
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'drivers/infiniband/hw/cxgb4')
-rw-r--r-- | drivers/infiniband/hw/cxgb4/qp.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/infiniband/hw/cxgb4/qp.c b/drivers/infiniband/hw/cxgb4/qp.c index c00a41144126..0fe87b9c1e10 100644 --- a/drivers/infiniband/hw/cxgb4/qp.c +++ b/drivers/infiniband/hw/cxgb4/qp.c @@ -2571,9 +2571,8 @@ static int alloc_srq_queue(struct c4iw_srq *srq, struct c4iw_dev_ucontext *uctx, wq->rqt_abs_idx = (wq->rqt_hwaddr - rdev->lldi.vr->rq.start) >> T4_RQT_ENTRY_SHIFT; - wq->queue = dma_zalloc_coherent(&rdev->lldi.pdev->dev, - wq->memsize, &wq->dma_addr, - GFP_KERNEL); + wq->queue = dma_alloc_coherent(&rdev->lldi.pdev->dev, wq->memsize, + &wq->dma_addr, GFP_KERNEL); if (!wq->queue) goto err_free_rqtpool; |