[PATCH v5 10/40] net/cxgbe: check RSS hash algorithms

[Jie Hai]

A new field 'algorithm' has been added to rss_conf, check it
in case of ignoring unsupported values.

Signed-off-by: Jie Hai <haijie1 at huawei.com>
---
 drivers/net/cxgbe/cxgbe_ethdev.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/net/cxgbe/cxgbe_ethdev.c b/drivers/net/cxgbe/cxgbe_ethdev.c
index 45bbeaef0ceb..8de57bbfe661 100644
--- a/drivers/net/cxgbe/cxgbe_ethdev.c
+++ b/drivers/net/cxgbe/cxgbe_ethdev.c
@@ -440,9 +440,13 @@ int cxgbe_dev_configure(struct rte_eth_dev *eth_dev)
 
 	CXGBE_FUNC_TRACE();
 
-	if (eth_dev->data->dev_conf.rxmode.mq_mode & RTE_ETH_MQ_RX_RSS_FLAG)
+	if (eth_dev->data->dev_conf.rxmode.mq_mode & RTE_ETH_MQ_RX_RSS_FLAG) {
 		eth_dev->data->dev_conf.rxmode.offloads |=
 			RTE_ETH_RX_OFFLOAD_RSS_HASH;
+		if (eth_dev->data->dev_conf.rx_adv_conf.rss_conf.algorithm !=
+		    RTE_ETH_HASH_FUNCTION_DEFAULT)
+			return -EINVAL;
+	}
 
 	if (!(adapter->flags & FW_QUEUE_BOUND)) {
 		err = cxgbe_setup_sge_fwevtq(adapter);
@@ -1165,6 +1169,9 @@ static int cxgbe_dev_rss_hash_update(struct rte_eth_dev *dev,
 	struct adapter *adapter = pi->adapter;
 	int err;
 
+	if (rss_conf->algorithm != RTE_ETH_HASH_FUNCTION_DEFAULT)
+		return -EINVAL;
+
 	err = cxgbe_write_rss_conf(pi, rss_conf->rss_hf);
 	if (err)
 		return err;
-- 
2.30.0