diff options
| author | Chengchang Tang <tangchengchang@huawei.com> | 2025-03-27 19:47:24 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-04-25 10:50:48 +0200 |
| commit | 29a4b0ebd56c24a538398da444cfca8d73e71887 (patch) | |
| tree | f7d3780adb6a80cfc5014b58b09cc8aab9ddacae | |
| parent | cad5ed7ad7dbcb5464158e837c070b41a29b5955 (diff) | |
RDMA/hns: Fix wrong maximum DMA segment size
[ Upstream commit 9beb2c91fb86e0be70a5833c6730441fa3c9efa8 ]
Set maximum DMA segment size to 2G instead of UINT_MAX due to HW limit.
Fixes: e0477b34d9d1 ("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>
| -rw-r--r-- | drivers/infiniband/hw/hns/hns_roce_main.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/hns/hns_roce_main.c b/drivers/infiniband/hw/hns/hns_roce_main.c index cf89a8db4f64..8d0b63d4b50a 100644 --- a/drivers/infiniband/hw/hns/hns_roce_main.c +++ b/drivers/infiniband/hw/hns/hns_roce_main.c @@ -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"); |