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Commit 330baff5 authored by Yunsheng Lin's avatar Yunsheng Lin Committed by David S. Miller
Browse files

net: hns3: add ETS TC weight setting in SSU module 



This patch sets the TC weight in SSU module according to
info in tm_info.

Also, zero weight of TC weight in SSU ETS module means enabling
strict priority, so do not allow zero weight when in ETS mode.

Signed-off-by: default avatarYunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: default avatarPeng Li <lipeng321@huawei.com>
Signed-off-by: default avatarHuazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 44e59e37

drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c

+43 −0
Original line number Diff line number Diff line
@@ -947,6 +947,36 @@ static int hclge_tm_pri_tc_base_dwrr_cfg(struct hclge_dev *hdev) 
	return 0;

}



static int hclge_tm_ets_tc_dwrr_cfg(struct hclge_dev *hdev)

{

#define DEFAULT_TC_WEIGHT	1

#define DEFAULT_TC_OFFSET	14



	struct hclge_ets_tc_weight_cmd *ets_weight;

	struct hclge_desc desc;

	int i;



	hclge_cmd_setup_basic_desc(&desc, HCLGE_OPC_ETS_TC_WEIGHT, false);

	ets_weight = (struct hclge_ets_tc_weight_cmd *)desc.data;



	for (i = 0; i < HNAE3_MAX_TC; i++) {

		struct hclge_pg_info *pg_info;



		ets_weight->tc_weight[i] = DEFAULT_TC_WEIGHT;



		if (!(hdev->hw_tc_map & BIT(i)))

			continue;



		pg_info =

			&hdev->tm_info.pg_info[hdev->tm_info.tc_info[i].pgid];

		ets_weight->tc_weight[i] = pg_info->tc_dwrr[i];

	}



	ets_weight->weight_offset = DEFAULT_TC_OFFSET;



	return hclge_cmd_send(&hdev->hw, &desc, 1);

}



static int hclge_tm_pri_vnet_base_dwrr_pri_cfg(struct hclge_vport *vport)

{

	struct hnae3_knic_private_info *kinfo = &vport->nic.kinfo;
@@ -996,6 +1026,19 @@ static int hclge_tm_pri_dwrr_cfg(struct hclge_dev *hdev) 
		ret = hclge_tm_pri_tc_base_dwrr_cfg(hdev);

		if (ret)

			return ret;



		if (!hnae3_dev_dcb_supported(hdev))

			return 0;



		ret = hclge_tm_ets_tc_dwrr_cfg(hdev);

		if (ret == -EOPNOTSUPP) {

			dev_warn(&hdev->pdev->dev,

				 "fw %08x does't support ets tc weight cmd\n",

				 hdev->fw_version);

			ret = 0;

		}



		return ret;

	} else {

		ret = hclge_tm_pri_vnet_base_dwrr_cfg(hdev);

		if (ret)