[PATCH v5 15/40] net/fm10k: 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/fm10k/fm10k_ethdev.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/net/fm10k/fm10k_ethdev.c b/drivers/net/fm10k/fm10k_ethdev.c
index 4d3c4c10cfa4..d8b27e84d836 100644
--- a/drivers/net/fm10k/fm10k_ethdev.c
+++ b/drivers/net/fm10k/fm10k_ethdev.c
@@ -452,8 +452,12 @@ fm10k_dev_configure(struct rte_eth_dev *dev)
 
 	PMD_INIT_FUNC_TRACE();
 
-	if (dev->data->dev_conf.rxmode.mq_mode & RTE_ETH_MQ_RX_RSS_FLAG)
+	if (dev->data->dev_conf.rxmode.mq_mode & RTE_ETH_MQ_RX_RSS_FLAG) {
 		dev->data->dev_conf.rxmode.offloads |= RTE_ETH_RX_OFFLOAD_RSS_HASH;
+		if (dev->data->dev_conf.rx_adv_conf.rss_conf.algorithm !=
+		    RTE_ETH_HASH_FUNCTION_DEFAULT)
+			return -EINVAL;
+	}
 
 	/* multiple queue mode checking */
 	ret  = fm10k_check_mq_mode(dev);
@@ -2195,6 +2199,9 @@ fm10k_rss_hash_update(struct rte_eth_dev *dev,
 				FM10K_RSSRK_ENTRIES_PER_REG))
 		return -EINVAL;
 
+	if (rss_conf->algorithm != RTE_ETH_HASH_FUNCTION_DEFAULT)
+		return -EINVAL;
+
 	if (hf == 0)
 		return -EINVAL;
 
-- 
2.30.0