dpdk/0247-net-hns3-separate-setting-RSS-types.patch

From b99379a51ab920cbd8d4ee51122efff2f1af57db Mon Sep 17 00:00:00 2001
From: Huisong Li <lihuisong@huawei.com>
Date: Fri, 10 Mar 2023 17:35:11 +0800
Subject: net/hns3: separate setting RSS types

[ upstream commit 791e56935e488b8154a83daaf3952e1901ed7552 ]

The settings of RSS types comes from the ethdev ops (like, dev_configure
and rss_hash_update) and rte_flow API. For the ethdev ops, driver has to
save it so as to it can be restored when reset is triggered.
While rte_flow API no need to maintain this field, it can be restored by
the saved rule.

Cc: stable@dpdk.org

Signed-off-by: Huisong Li <lihuisong@huawei.com>
Signed-off-by: Dongdong Liu <liudongdong3@huawei.com>
---
 drivers/net/hns3/hns3_flow.c |  3 ++-
 drivers/net/hns3/hns3_rss.c  | 22 ++++++++++++++--------
 drivers/net/hns3/hns3_rss.h  |  1 +
 3 files changed, 17 insertions(+), 9 deletions(-)

diff --git a/drivers/net/hns3/hns3_flow.c b/drivers/net/hns3/hns3_flow.c
index 875c0eec11..9e51891bd9 100644
--- a/drivers/net/hns3/hns3_flow.c
+++ b/drivers/net/hns3/hns3_flow.c
@@ -1433,6 +1433,7 @@ hns3_disable_rss(struct hns3_hw *hw)
 	ret = hns3_set_rss_tuple_by_rss_hf(hw, 0);
 	if (ret)
 		return ret;
+	hw->rss_info.rss_hf = 0;
 
 	return 0;
 }
@@ -1580,7 +1581,7 @@ hns3_config_rss_filter(struct hns3_hw *hw,
 	/* Filter the unsupported flow types */
 	flow_types = conf->conf.types ?
 		     rss_flow_conf.types & HNS3_ETH_RSS_SUPPORT :
-		     hw->rss_info.conf.types;
+		     hw->rss_info.rss_hf;
 	if (flow_types != rss_flow_conf.types)
 		hns3_warn(hw, "modified RSS types based on hardware support,"
 			  " requested:0x%" PRIx64 " configured:0x%" PRIx64,
diff --git a/drivers/net/hns3/hns3_rss.c b/drivers/net/hns3/hns3_rss.c
index 751033d98f..f51d70a8e5 100644
--- a/drivers/net/hns3/hns3_rss.c
+++ b/drivers/net/hns3/hns3_rss.c
@@ -628,9 +628,6 @@ hns3_set_rss_tuple_by_rss_hf(struct hns3_hw *hw, uint64_t rss_hf)
 		return ret;
 	}
 
-	/* Update supported flow types when set tuple success */
-	hw->rss_info.conf.types = rss_hf;
-
 	return 0;
 }
 
@@ -648,7 +645,7 @@ hns3_dev_rss_hash_update(struct rte_eth_dev *dev,
 			 struct rte_eth_rss_conf *rss_conf)
 {
 	struct hns3_hw *hw = HNS3_DEV_PRIVATE_TO_HW(dev->data->dev_private);
-	uint64_t rss_hf_bk = hw->rss_info.conf.types;
+	uint64_t rss_hf_bk = hw->rss_info.rss_hf;
 	uint8_t key_len = rss_conf->rss_key_len;
 	uint64_t rss_hf = rss_conf->rss_hf;
 	uint8_t *key = rss_conf->rss_key;
@@ -673,6 +670,7 @@ hns3_dev_rss_hash_update(struct rte_eth_dev *dev,
 		/* Update the shadow RSS key with user specified */
 		memcpy(hw->rss_info.key, key, hw->rss_key_size);
 	}
+	hw->rss_info.rss_hf = rss_hf;
 	rte_spinlock_unlock(&hw->lock);
 
 	return 0;
@@ -1030,6 +1028,7 @@ hns3_rss_set_default_args(struct hns3_hw *hw)
 	/* Default hash algorithm */
 	rss_cfg->hash_algo = HNS3_RSS_HASH_ALGO_TOEPLITZ;
 
+	hw->rss_info.rss_hf = 0;
 	memcpy(rss_cfg->key, hns3_hash_key,
 		RTE_MIN(sizeof(hns3_hash_key), hw->rss_key_size));
 
@@ -1067,15 +1066,22 @@ hns3_config_rss(struct hns3_adapter *hns)
 		return ret;
 
 	/*
-	 * When muli-queue RSS mode flag is not set or unsupported tuples are
+	 * When multi-queue RSS mode flag is not set or unsupported tuples are
 	 * set, disable all tuples.
 	 */
-	rss_hf = hw->rss_info.conf.types;
+	rss_hf = hw->rss_info.rss_hf;
 	if (!((uint32_t)mq_mode & RTE_ETH_MQ_RX_RSS_FLAG) ||
 	    !(rss_hf & HNS3_ETH_RSS_SUPPORT))
 		rss_hf = 0;
 
-	return hns3_set_rss_tuple_by_rss_hf(hw, rss_hf);
+	ret = hns3_set_rss_tuple_by_rss_hf(hw, rss_hf);
+	if (ret != 0) {
+		hns3_err(hw, "set RSS tuples failed, ret = %d.", ret);
+		return ret;
+	}
+	hw->rss_info.rss_hf = rss_hf;
+
+	return 0;
 }
 
 /*
@@ -1093,5 +1099,5 @@ hns3_rss_uninit(struct hns3_adapter *hns)
 		return;
 
 	/* Disable RSS */
-	hw->rss_info.conf.types = 0;
+	hw->rss_info.rss_hf = 0;
 }
diff --git a/drivers/net/hns3/hns3_rss.h b/drivers/net/hns3/hns3_rss.h
index 6e679b709b..21b90789d0 100644
--- a/drivers/net/hns3/hns3_rss.h
+++ b/drivers/net/hns3/hns3_rss.h
@@ -41,6 +41,7 @@
 struct hns3_rss_conf {
 	/* RSS parameters :algorithm, flow_types,  key, queue */
 	struct rte_flow_action_rss conf;
+	uint64_t rss_hf;
 	uint8_t hash_algo; /* hash function type defined by hardware */
 	uint8_t rte_flow_hash_algo;
 	uint8_t key[HNS3_RSS_KEY_SIZE_MAX];  /* Hash key */
-- 
2.23.0