net/mlx5: fix ineffective metadata argument adjustment

In "dv_xmeta_en" devarg there is an option of dv_xmeta_en=3 which
engages tunnel offload mode. In E-Switch configuration, that mode
implicitly activates dv_xmeta_en=1.

The update according to E-switch support is done immediately after the
first parsing of the devargs, but there is another adjustment later.

This patch moves the adjustment after the second parsing.

Fixes: 4ec6360 ("net/mlx5: implement tunnel offload")
Cc: stable@dpdk.org

Signed-off-by: Michael Baum <michaelba@nvidia.com>
Acked-by: Matan Azrad <matan@nvidia.com>

drivers/net/mlx5/linux/mlx5_os.c

@@ -977,10 +977,6 @@ mlx5_dev_spawn(struct rte_device *dpdk_dev,
 			strerror(rte_errno));
 		goto error;
 	}
-	if (config->dv_miss_info) {
-		if (switch_info->master || switch_info->representor)
-			config->dv_xmeta_en = MLX5_XMETA_MODE_META16;
-	}
 	sh = mlx5_alloc_shared_dev_ctx(spawn, config);
 	if (!sh)
 		return NULL;
@@ -1242,6 +1238,10 @@ mlx5_dev_spawn(struct rte_device *dpdk_dev,
 	/* Override some values set by hardware configuration. */
 	mlx5_args(config, dpdk_dev->devargs);
 	/* Update final values for devargs before check sibling config. */
+	if (config->dv_miss_info) {
+		if (switch_info->master || switch_info->representor)
+			config->dv_xmeta_en = MLX5_XMETA_MODE_META16;
+	}
 #if !defined(HAVE_IBV_FLOW_DV_SUPPORT) || !defined(HAVE_MLX5DV_DR)
 	if (config->dv_flow_en) {
 		DRV_LOG(WARNING, "DV flow is not supported.");