+ const uint8_t use_app_rss_key =
+ !!dev->data->dev_conf.rx_adv_conf.rss_conf.rss_key;
+ uint64_t supp_tx_offloads = mlx5_priv_get_tx_port_offloads(priv);
+ uint64_t tx_offloads = dev->data->dev_conf.txmode.offloads;
+ uint64_t supp_rx_offloads =
+ (mlx5_priv_get_rx_port_offloads(priv) |
+ mlx5_priv_get_rx_queue_offloads(priv));
+ uint64_t rx_offloads = dev->data->dev_conf.rxmode.offloads;
+
+ if ((tx_offloads & supp_tx_offloads) != tx_offloads) {
+ ERROR("Some Tx offloads are not supported "
+ "requested 0x%" PRIx64 " supported 0x%" PRIx64,
+ tx_offloads, supp_tx_offloads);
+ return ENOTSUP;
+ }
+ if ((rx_offloads & supp_rx_offloads) != rx_offloads) {
+ ERROR("Some Rx offloads are not supported "
+ "requested 0x%" PRIx64 " supported 0x%" PRIx64,
+ rx_offloads, supp_rx_offloads);
+ return ENOTSUP;
+ }
+ if (use_app_rss_key &&
+ (dev->data->dev_conf.rx_adv_conf.rss_conf.rss_key_len !=
+ rss_hash_default_key_len)) {
+ /* MLX5 RSS only support 40bytes key. */
+ return EINVAL;
+ }
+ priv->rss_conf.rss_key =
+ rte_realloc(priv->rss_conf.rss_key,
+ rss_hash_default_key_len, 0);
+ if (!priv->rss_conf.rss_key) {
+ ERROR("cannot allocate RSS hash key memory (%u)", rxqs_n);
+ return ENOMEM;
+ }
+ memcpy(priv->rss_conf.rss_key,
+ use_app_rss_key ?
+ dev->data->dev_conf.rx_adv_conf.rss_conf.rss_key :
+ rss_hash_default_key,
+ rss_hash_default_key_len);
+ priv->rss_conf.rss_key_len = rss_hash_default_key_len;
+ priv->rss_conf.rss_hf = dev->data->dev_conf.rx_adv_conf.rss_conf.rss_hf;