From ec1691494273ef4f9cb60ed24099196de1ce0cc4 Mon Sep 17 00:00:00 2001
From: Huisong Li <lihuisong@huawei.com>
Date: Wed, 6 Apr 2022 14:57:01 +0800
Subject: [PATCH] net/hns3: remove unnecessary RSS switch

Whether the RSS is enabled depends on RTE_ETH_MQ_RX_RSS_FLAG and packet
tuple are enabled. So the RSS switch is unnecessary.

Fixes: 5e782bc2570c ("net/hns3: fix configuring RSS hash when rules are flushed")
Fixes: fd8196838763 ("net/hns3: fix configuring device with RSS enabled")
Cc: stable@dpdk.org

Signed-off-by: Huisong Li <lihuisong@huawei.com>
Signed-off-by: Min Hu (Connor) <humin29@huawei.com>
---
 drivers/net/hns3/hns3_ethdev.c    | 2 --
 drivers/net/hns3/hns3_ethdev.h    | 1 -
 drivers/net/hns3/hns3_ethdev_vf.c | 2 --
 drivers/net/hns3/hns3_flow.c      | 1 -
 drivers/net/hns3/hns3_rss.c       | 3 ---
 5 files changed, 9 deletions(-)

diff --git a/drivers/net/hns3/hns3_ethdev.c b/drivers/net/hns3/hns3_ethdev.c
index 4d5a595aab..0b565a5614 100644
--- a/drivers/net/hns3/hns3_ethdev.c
+++ b/drivers/net/hns3/hns3_ethdev.c
@@ -2018,7 +2018,6 @@ hns3_dev_configure(struct rte_eth_dev *dev)
 	if ((uint32_t)mq_mode & RTE_ETH_MQ_RX_RSS_FLAG) {
 		conf->rxmode.offloads |= RTE_ETH_RX_OFFLOAD_RSS_HASH;
 		rss_conf = conf->rx_adv_conf.rss_conf;
-		hw->rss_dis_flag = false;
 		ret = hns3_dev_rss_hash_update(dev, &rss_conf);
 		if (ret)
 			goto cfg_err;
@@ -2824,7 +2823,6 @@ hns3_get_board_configuration(struct hns3_hw *hw)
 
 	hw->mac.media_type = cfg.media_type;
 	hw->rss_size_max = cfg.rss_size_max;
-	hw->rss_dis_flag = false;
 	memcpy(hw->mac.mac_addr, cfg.mac_addr, RTE_ETHER_ADDR_LEN);
 	hw->mac.phy_addr = cfg.phy_addr;
 	hw->dcb_info.num_pg = 1;
diff --git a/drivers/net/hns3/hns3_ethdev.h b/drivers/net/hns3/hns3_ethdev.h
index bb6ddd97ba..5e8a746514 100644
--- a/drivers/net/hns3/hns3_ethdev.h
+++ b/drivers/net/hns3/hns3_ethdev.h
@@ -526,7 +526,6 @@ struct hns3_hw {
 
 	/* The configuration info of RSS */
 	struct hns3_rss_conf rss_info;
-	bool rss_dis_flag; /* disable rss flag. true: disable, false: enable */
 	uint16_t rss_ind_tbl_size;
 	uint16_t rss_key_size;
 
diff --git a/drivers/net/hns3/hns3_ethdev_vf.c b/drivers/net/hns3/hns3_ethdev_vf.c
index f641e0dc36..589de0ab3a 100644
--- a/drivers/net/hns3/hns3_ethdev_vf.c
+++ b/drivers/net/hns3/hns3_ethdev_vf.c
@@ -495,7 +495,6 @@ hns3vf_dev_configure(struct rte_eth_dev *dev)
 	/* When RSS is not configured, redirect the packet queue 0 */
 	if ((uint32_t)mq_mode & RTE_ETH_MQ_RX_RSS_FLAG) {
 		conf->rxmode.offloads |= RTE_ETH_RX_OFFLOAD_RSS_HASH;
-		hw->rss_dis_flag = false;
 		rss_conf = conf->rx_adv_conf.rss_conf;
 		ret = hns3_dev_rss_hash_update(dev, &rss_conf);
 		if (ret)
@@ -997,7 +996,6 @@ hns3vf_get_configuration(struct hns3_hw *hw)
 	int ret;
 
 	hw->mac.media_type = HNS3_MEDIA_TYPE_NONE;
-	hw->rss_dis_flag = false;
 
 	/* Get device capability */
 	ret = hns3vf_get_capability(hw);
diff --git a/drivers/net/hns3/hns3_flow.c b/drivers/net/hns3/hns3_flow.c
index 317f91fc71..86ebbf69b6 100644
--- a/drivers/net/hns3/hns3_flow.c
+++ b/drivers/net/hns3/hns3_flow.c
@@ -1449,7 +1449,6 @@ hns3_disable_rss(struct hns3_hw *hw)
 	ret = hns3_set_rss_tuple_by_rss_hf(hw, 0);
 	if (ret)
 		return ret;
-	hw->rss_dis_flag = true;
 
 	return 0;
 }
diff --git a/drivers/net/hns3/hns3_rss.c b/drivers/net/hns3/hns3_rss.c
index e149c16bfe..d376486a1d 100644
--- a/drivers/net/hns3/hns3_rss.c
+++ b/drivers/net/hns3/hns3_rss.c
@@ -381,9 +381,6 @@ hns3_dev_rss_hash_update(struct rte_eth_dev *dev,
 	uint8_t *key = rss_conf->rss_key;
 	int ret;
 
-	if (hw->rss_dis_flag)
-		return -EINVAL;
-
 	if (key && key_len != HNS3_RSS_KEY_SIZE) {
 		hns3_err(hw, "the hash key len(%u) is invalid, must be %u",
 			 key_len, HNS3_RSS_KEY_SIZE);
-- 
2.33.0