Data Center Quantized Congestion Notification (DCQCN) is a congestion control protocol for large scale RDMA networks. In order to support it, The design of hip08 add a Sofware Congestion Control(SCC) module, which support flow control of 1M QPs. The driver implements the following works: 1.Allocate memory for SCC, which is used for flow contrl info of QPs. 2.Initialize SCC, memory should be clear before used. 3.Allocate memory for timeout retransmission for accurating retransmission interval. Yangyang Li (3): RDMA/hns: Add SCC context allocation support for hip08 RDMA/hns: Add SCC context clr support for hip08 RDMA/hns: Add timer allocation support for hip08 drivers/infiniband/hw/hns/hns_roce_cmd.h | 12 ++ drivers/infiniband/hw/hns/hns_roce_device.h | 37 ++++++ drivers/infiniband/hw/hns/hns_roce_hem.c | 68 +++++++++- drivers/infiniband/hw/hns/hns_roce_hem.h | 3 + drivers/infiniband/hw/hns/hns_roce_hw_v2.c | 195 +++++++++++++++++++++++++++- drivers/infiniband/hw/hns/hns_roce_hw_v2.h | 64 ++++++++- drivers/infiniband/hw/hns/hns_roce_main.c | 54 ++++++++ drivers/infiniband/hw/hns/hns_roce_qp.c | 29 ++++- 8 files changed, 454 insertions(+), 8 deletions(-) -- 1.9.1
