Commit d967e262 authored by Weihang Li's avatar Weihang Li Committed by Doug Ledford
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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: default avatarWeihang Li <liweihang@hisilicon.com>
Link: https://lore.kernel.org/r/1565276034-97329-14-git-send-email-oulijun@huawei.com


Signed-off-by: default avatarDoug Ledford <dledford@redhat.com>
parent 249f2f92

drivers/infiniband/hw/hns/hns_roce_hw_v2.c

+1 −1
Original line number Diff line number Diff line
@@ -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);