diff options
| author | Chengchang Tang <tangchengchang@huawei.com> | 2022-11-26 13:29:08 +0300 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@nvidia.com> | 2022-12-08 02:51:05 +0300 |
| commit | 9fb39ef2ff3e18f1740625ba04093dfbef086d2b (patch) | |
| tree | b74217e4469695c616d56ad59dbb4103a40c9077 /drivers/infiniband/hw | |
| parent | bc34c04f7b97c3794dec5a6d6d27ffd5f0e4f5c8 (diff) | |
| download | linux-9fb39ef2ff3e18f1740625ba04093dfbef086d2b.tar.xz | |
RDMA/hns: Fix PBL page MTR find
Now, The address of the first two pages in the MR will be searched, which
use to speed up the lookup of the pbl table for hardware. An exception
will occur when there is only one page in this MR. This patch fix the
number of page to search.
Fixes: 9b2cf76c9f05 ("RDMA/hns: Optimize PBL buffer allocation process")
Link: https://lore.kernel.org/r/20221126102911.2921820-4-xuhaoyue1@hisilicon.com
Signed-off-by: Chengchang Tang <tangchengchang@huawei.com>
Signed-off-by: Haoyue Xu <xuhaoyue1@hisilicon.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'drivers/infiniband/hw')
| -rw-r--r-- | drivers/infiniband/hw/hns/hns_roce_hw_v2.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c index a8f8c790d31d..41835cb05983 100644 --- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c +++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c @@ -3274,7 +3274,8 @@ static int set_mtpt_pbl(struct hns_roce_dev *hr_dev, int i, count; count = hns_roce_mtr_find(hr_dev, &mr->pbl_mtr, 0, pages, - ARRAY_SIZE(pages), &pbl_ba); + min_t(int, ARRAY_SIZE(pages), mr->npages), + &pbl_ba); if (count < 1) { ibdev_err(ibdev, "failed to find PBL mtr, count = %d.\n", count); |