+/**
+ * Configures the metadata mask fields in the shared context.
+ *
+ * @param [in] dev
+ * Pointer to Ethernet device.
+ */
+static void
+mlx5_set_metadata_mask(struct rte_eth_dev *dev)
+{
+ struct mlx5_priv *priv = dev->data->dev_private;
+ struct mlx5_ibv_shared *sh = priv->sh;
+ uint32_t meta, mark, reg_c0;
+
+ reg_c0 = ~priv->vport_meta_mask;
+ switch (priv->config.dv_xmeta_en) {
+ case MLX5_XMETA_MODE_LEGACY:
+ meta = UINT32_MAX;
+ mark = MLX5_FLOW_MARK_MASK;
+ break;
+ case MLX5_XMETA_MODE_META16:
+ meta = reg_c0 >> rte_bsf32(reg_c0);
+ mark = MLX5_FLOW_MARK_MASK;
+ break;
+ case MLX5_XMETA_MODE_META32:
+ meta = UINT32_MAX;
+ mark = (reg_c0 >> rte_bsf32(reg_c0)) & MLX5_FLOW_MARK_MASK;
+ break;
+ default:
+ meta = 0;
+ mark = 0;
+ assert(false);
+ break;
+ }
+ if (sh->dv_mark_mask && sh->dv_mark_mask != mark)
+ DRV_LOG(WARNING, "metadata MARK mask mismatche %08X:%08X",
+ sh->dv_mark_mask, mark);
+ else
+ sh->dv_mark_mask = mark;
+ if (sh->dv_meta_mask && sh->dv_meta_mask != meta)
+ DRV_LOG(WARNING, "metadata META mask mismatche %08X:%08X",
+ sh->dv_meta_mask, meta);
+ else
+ sh->dv_meta_mask = meta;
+ if (sh->dv_regc0_mask && sh->dv_regc0_mask != reg_c0)
+ DRV_LOG(WARNING, "metadata reg_c0 mask mismatche %08X:%08X",
+ sh->dv_meta_mask, reg_c0);
+ else
+ sh->dv_regc0_mask = reg_c0;
+ DRV_LOG(DEBUG, "metadata mode %u", priv->config.dv_xmeta_en);
+ DRV_LOG(DEBUG, "metadata MARK mask %08X", sh->dv_mark_mask);
+ DRV_LOG(DEBUG, "metadata META mask %08X", sh->dv_meta_mask);
+ DRV_LOG(DEBUG, "metadata reg_c0 mask %08X", sh->dv_regc0_mask);
+}
+