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| author |   Sirong Wang <wangsirong@huawei.com> | 2019-11-01 10:33:29 +0800 |
|---|---|---|
| committer |   Jason Gunthorpe <jgg@mellanox.com> | 2019-11-06 13:37:02 -0400 |
| commit | 531eb45b3da4267fc2a64233ba256c8ffb02edd2 (patch) | |
| tree | 13c002eb93805a3dc628bff64e2556c56465509c /drivers/infiniband | |
| parent | IB/hfi1: TID RDMA WRITE should not return IB_WC_RNR_RETRY_EXC_ERR (diff) | |
| download | linux-dev-531eb45b3da4267fc2a64233ba256c8ffb02edd2.tar.xz linux-dev-531eb45b3da4267fc2a64233ba256c8ffb02edd2.zip | |
RDMA/hns: Correct the value of HNS_ROCE_HEM_CHUNK_LEN
Size of pointer to buf field of struct hns_roce_hem_chunk should be
considered when calculating HNS_ROCE_HEM_CHUNK_LEN, or sg table size will
be larger than expected when allocating hem.
Fixes: 9a4435375cd1 ("IB/hns: Add driver files for hns RoCE driver")
Link: https://lore.kernel.org/r/1572575610-52530-2-git-send-email-liweihang@hisilicon.com
Signed-off-by: Sirong Wang <wangsirong@huawei.com>
Signed-off-by: Weihang Li <liweihang@hisilicon.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'drivers/infiniband')
| -rw-r--r-- | drivers/infiniband/hw/hns/hns_roce_hem.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/hns/hns_roce_hem.h b/drivers/infiniband/hw/hns/hns_roce_hem.h index 86783276fb1f..3bb8f78fb7b0 100644 --- a/drivers/infiniband/hw/hns/hns_roce_hem.h +++ b/drivers/infiniband/hw/hns/hns_roce_hem.h @@ -59,7 +59,7 @@ enum { #define HNS_ROCE_HEM_CHUNK_LEN \ ((256 - sizeof(struct list_head) - 2 * sizeof(int)) / \ - (sizeof(struct scatterlist))) + (sizeof(struct scatterlist) + sizeof(void *))) #define check_whether_bt_num_3(type, hop_num) \ (type < HEM_TYPE_MTT && hop_num == 2) |