[PATCH v5 08/40] net/cnxk: 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/cnxk/cnxk_ethdev.c     | 5 +++++
 drivers/net/cnxk/cnxk_ethdev_ops.c | 3 +++
 2 files changed, 8 insertions(+)

diff --git a/drivers/net/cnxk/cnxk_ethdev.c b/drivers/net/cnxk/cnxk_ethdev.c
index 01b707b6c4ac..dc150de745df 100644
--- a/drivers/net/cnxk/cnxk_ethdev.c
+++ b/drivers/net/cnxk/cnxk_ethdev.c
@@ -976,6 +976,10 @@ nix_rss_default_setup(struct cnxk_eth_dev *dev)
 	if (rss_hash_level)
 		rss_hash_level -= 1;
 
+	if (eth_dev->data->dev_conf.rx_adv_conf.rss_conf.algorithm !=
+	    RTE_ETH_HASH_FUNCTION_DEFAULT)
+		return -EINVAL;
+
 	flowkey_cfg = cnxk_rss_ethdev_to_nix(dev, rss_hf, rss_hash_level);
 	return roc_nix_rss_default_setup(&dev->nix, flowkey_cfg);
 }
@@ -1373,6 +1377,7 @@ cnxk_nix_configure(struct rte_eth_dev *eth_dev)
 	}
 
 	/* Configure RSS */
+
 	rc = nix_rss_default_setup(dev);
 	if (rc) {
 		plt_err("Failed to configure rss rc=%d", rc);
diff --git a/drivers/net/cnxk/cnxk_ethdev_ops.c b/drivers/net/cnxk/cnxk_ethdev_ops.c
index 3ade8eed3626..b6cba99cbb7f 100644
--- a/drivers/net/cnxk/cnxk_ethdev_ops.c
+++ b/drivers/net/cnxk/cnxk_ethdev_ops.c
@@ -1054,6 +1054,9 @@ cnxk_nix_rss_hash_update(struct rte_eth_dev *eth_dev,
 	int rc = -EINVAL;
 	uint8_t alg_idx;
 
+	if (rss_conf->algorithm != RTE_ETH_HASH_FUNCTION_DEFAULT)
+		goto fail;
+
 	if (rss_conf->rss_key && rss_conf->rss_key_len != ROC_NIX_RSS_KEY_LEN) {
 		plt_err("Hash key size mismatch %d vs %d",
 			rss_conf->rss_key_len, ROC_NIX_RSS_KEY_LEN);
-- 
2.30.0