diff options
| author | Yixing Liu <liuyixing1@huawei.com> | 2022-03-10 12:28:35 +0800 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@nvidia.com> | 2022-03-15 20:19:00 -0300 |
| commit | 70f92521584f1d1e8268311ee84413307b0fdea8 (patch) | |
| tree | ef4a4f389071941724da40035decef3293fc0315 /drivers/infiniband/hw/hns/hns_roce_device.h | |
| parent | 51cad2872435f79c63b81503d8d1c9f143172489 (diff) | |
RDMA/hns: Use the reserved loopback QPs to free MR before destroying MPT
Before destroying MPT, the reserved loopback QPs send loopback IOs (one
write operation per SL). Completing these loopback IOs represents that
there isn't any outstanding request in MPT, then it's safe to destroy MPT.
Link: https://lore.kernel.org/r/20220310042835.38634-1-liangwenpeng@huawei.com
Signed-off-by: Yixing Liu <liuyixing1@huawei.com>
Signed-off-by: Wenpeng Liang <liangwenpeng@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'drivers/infiniband/hw/hns/hns_roce_device.h')
| -rw-r--r-- | drivers/infiniband/hw/hns/hns_roce_device.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/hns/hns_roce_device.h b/drivers/infiniband/hw/hns/hns_roce_device.h index 21182ec56f18..3083d6db1d68 100644 --- a/drivers/infiniband/hw/hns/hns_roce_device.h +++ b/drivers/infiniband/hw/hns/hns_roce_device.h @@ -633,6 +633,7 @@ struct hns_roce_qp { u32 next_sge; enum ib_mtu path_mtu; u32 max_inline_data; + u8 free_mr_en; /* 0: flush needed, 1: unneeded */ unsigned long flush_flag; @@ -889,6 +890,7 @@ struct hns_roce_hw { enum ib_qp_state new_state); int (*qp_flow_control_init)(struct hns_roce_dev *hr_dev, struct hns_roce_qp *hr_qp); + void (*dereg_mr)(struct hns_roce_dev *hr_dev); int (*init_eq)(struct hns_roce_dev *hr_dev); void (*cleanup_eq)(struct hns_roce_dev *hr_dev); int (*write_srqc)(struct hns_roce_srq *srq, void *mb_buf); |