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Chengchang Tang
df3835fd4e
hns RoCE supports 4 congestion control algorithms. Each algorihm involves multiple parameters. Support configuring these parameters by debugfs. Here are some examples of this feature: * The directory structure: $ ls /sys/kernel/debug/hns_roce/0000\:35\:00.0/ dcqcn_cc_param dip_cc_param hc3_cc_param ldcp_cc_param $ ls /sys/kernel/debug/hns_roce/0000\:35\:00.0/dcqcn_cc_param/ ai al alp ashift cnp_time f g lifespan max_speed tkp tmp * Read the value of a param: $ cat /sys/kernel/debug/hns_roce/0000\:35\:00.0/dcqcn_cc_param/ai 1 * Set a new value for a param: $ echo 2 > /sys/kernel/debug/hns_roce/0000\:35\:00.0/dcqcn_cc_param/ai Signed-off-by: Chengchang Tang <tangchengchang@huawei.com> Signed-off-by: Junxian Huang <huangjunxian6@hisilicon.com> Link: https://patch.msgid.link/20260507012148.1079712-4-huangjunxian6@hisilicon.com Signed-off-by: Leon Romanovsky <leon@kernel.org>