From e0477b34d9d11c1a7b1f80bfdbcdc8952ce2adb7 Mon Sep 17 00:00:00 2001 From: Jason Gunthorpe Date: Thu, 8 Oct 2020 11:27:52 +0300 Subject: RDMA: Explicitly pass in the dma_device to ib_register_device The code in setup_dma_device has become rather convoluted, move all of this to the drivers. Drives now pass in a DMA capable struct device which will be used to setup DMA, or drivers must fully configure the ibdev for DMA and pass in NULL. Other than setting the masks in rvt all drivers were doing this already anyhow. mthca, mlx4 and mlx5 were already setting up maximum DMA segment size for DMA based on their hardweare limits in: __mthca_init_one() dma_set_max_seg_size (1G) __mlx4_init_one() dma_set_max_seg_size (1G) mlx5_pci_init() set_dma_caps() dma_set_max_seg_size (2G) Other non software drivers (except usnic) were extended to UINT_MAX [1, 2] instead of 2G as was before. [1] https://lore.kernel.org/linux-rdma/20200924114940.GE9475@nvidia.com/ [2] https://lore.kernel.org/linux-rdma/20200924114940.GE9475@nvidia.com/ Link: https://lore.kernel.org/r/20201008082752.275846-1-leon@kernel.org Link: https://lore.kernel.org/r/6b2ed339933d066622d5715903870676d8cc523a.1602590106.git.mchehab+huawei@kernel.org Suggested-by: Christoph Hellwig Signed-off-by: Parav Pandit Signed-off-by: Leon Romanovsky Reviewed-by: Christoph Hellwig Signed-off-by: Mauro Carvalho Chehab Signed-off-by: Jason Gunthorpe --- drivers/infiniband/hw/ocrdma/ocrdma_main.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'drivers/infiniband/hw/ocrdma') diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_main.c b/drivers/infiniband/hw/ocrdma/ocrdma_main.c index d8c47d24d6d6..9b96661a7143 100644 --- a/drivers/infiniband/hw/ocrdma/ocrdma_main.c +++ b/drivers/infiniband/hw/ocrdma/ocrdma_main.c @@ -255,7 +255,9 @@ static int ocrdma_register_device(struct ocrdma_dev *dev) if (ret) return ret; - return ib_register_device(&dev->ibdev, "ocrdma%d"); + dma_set_max_seg_size(&dev->nic_info.pdev->dev, UINT_MAX); + return ib_register_device(&dev->ibdev, "ocrdma%d", + &dev->nic_info.pdev->dev); } static int ocrdma_alloc_resources(struct ocrdma_dev *dev) -- cgit v1.2.3-59-g8ed1b