• Lijun Ou's avatar
    RDMA/hns: Fix bug that caused srq creation to fail · 4772e03d
    Lijun Ou authored
    Due to the incorrect use of the seg and obj information, the position of
    the mtt is calculated incorrectly, and the free space of the page is not
    enough to store the entire mtt, resulting in access to the next page. This
    patch fixes this problem.
    
     Unable to handle kernel paging request at virtual address ffff00006e3cd000
     ...
     Call trace:
      hns_roce_write_mtt+0x154/0x2f0 [hns_roce]
      hns_roce_buf_write_mtt+0xa8/0xd8 [hns_roce]
      hns_roce_create_srq+0x74c/0x808 [hns_roce]
      ib_create_srq+0x28/0xc8
    
    Fixes: 0203b14c ("RDMA/hns: Unify the calculation for hem index in hip08")
    Signed-off-by: default avatarchenglang <chenglang@huawei.com>
    Signed-off-by: default avatarLijun Ou <oulijun@huawei.com>
    Signed-off-by: default avatarJason Gunthorpe <jgg@mellanox.com>
    4772e03d
hns_roce_mr.c 34.6 KB