From d967e2625faa43da9e3be3228b8c57d3cf404953 Mon Sep 17 00:00:00 2001 From: Weihang Li Date: Thu, 8 Aug 2019 22:53:53 +0800 Subject: [PATCH] RDMA/hns: Disable alw_lcl_lpbk of SSU If we enabled alw_lcl_lpbk in promiscuous mode, packet whose source and destination mac address is equal will be handled in both inner loopback and outer loopback. This will halve performance of roce in promiscuous mode. Signed-off-by: Weihang Li Link: https://lore.kernel.org/r/1565276034-97329-14-git-send-email-oulijun@huawei.com Signed-off-by: Doug Ledford --- drivers/infiniband/hw/hns/hns_roce_hw_v2.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c index a1f62e072753..a178d63f3ec8 100644 --- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c +++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c @@ -1308,7 +1308,7 @@ static int hns_roce_set_vf_switch_param(struct hns_roce_dev *hr_dev, cpu_to_le16(HNS_ROCE_CMD_FLAG_NO_INTR | HNS_ROCE_CMD_FLAG_IN); desc.flag &= cpu_to_le16(~HNS_ROCE_CMD_FLAG_WR); roce_set_bit(swt->cfg, VF_SWITCH_DATA_CFG_ALW_LPBK_S, 1); - roce_set_bit(swt->cfg, VF_SWITCH_DATA_CFG_ALW_LCL_LPBK_S, 1); + roce_set_bit(swt->cfg, VF_SWITCH_DATA_CFG_ALW_LCL_LPBK_S, 0); roce_set_bit(swt->cfg, VF_SWITCH_DATA_CFG_ALW_DST_OVRD_S, 1); return hns_roce_cmq_send(hr_dev, &desc, 1); -- 2.45.2