Commit 9beb2c91 authored by Chengchang Tang's avatar Chengchang Tang Committed by Jason Gunthorpe
Browse files

RDMA/hns: Fix wrong maximum DMA segment size 

Set maximum DMA segment size to 2G instead of UINT_MAX due to HW limit.

Fixes: e0477b34 ("RDMA: Explicitly pass in the dma_device to ib_register_device")
Link: https://patch.msgid.link/r/20250327114724.3454268-3-huangjunxian6@hisilicon.com


Signed-off-by: default avatarChengchang Tang <tangchengchang@huawei.com>
Signed-off-by: default avatarJunxian Huang <huangjunxian6@hisilicon.com>
Signed-off-by: default avatarJason Gunthorpe <jgg@nvidia.com>
parent 1b2fe85f

drivers/infiniband/hw/hns/hns_roce_main.c

+1 −1
Original line number Diff line number Diff line
@@ -763,7 +763,7 @@ static int hns_roce_register_device(struct hns_roce_dev *hr_dev) 
		if (ret)

			return ret;

	}

	dma_set_max_seg_size(dev, UINT_MAX);

	dma_set_max_seg_size(dev, SZ_2G);

	ret = ib_register_device(ib_dev, "hns_%d", dev);

	if (ret) {

		dev_err(dev, "ib_register_device failed!\n");