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authorJason Gunthorpe <jgg@mellanox.com>2019-01-29 21:49:31 +0100
committerJason Gunthorpe <jgg@mellanox.com>2019-01-29 21:49:31 +0100
commit55c293c38efa4408920e3ff8135a85a0dc2e3f56 (patch)
tree7933e8bd5f163545eaa497c5b659052a6edf30e1 /drivers/infiniband/hw/cxgb4
parentinfiniband: prefix header search paths with $(srctree)/ (diff)
parentIB/mlx5: Implement DEVX hot unplug for async command FD (diff)
downloadlinux-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.c5
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;