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RDMA/hns: Fix wrong maximum DMA segment size

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[ Upstream commit 9beb2c91fb ]

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

Fixes: e0477b34d9 ("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: Chengchang Tang <tangchengchang@huawei.com>
Signed-off-by: Junxian Huang <huangjunxian6@hisilicon.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Chengchang Tang
2025-04-25 10:45:39 +02:00
committed by Greg Kroah-Hartman
parent 344baf8c1f
commit efeddd8ace
1 changed files with 1 additions and 1 deletions
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drivers/infiniband/hw/hns/hns_roce_main.c
+1 -1
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@@ -731,7 +731,7 @@ 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");