+ rte_mempool_mem_iter(mp, mlx5_mr_update_ext_mp_cb, &data);
+ return data.ret;
+}
+
+/**
+ * Register MR entire memory chunks in a Mempool having externally allocated
+ * memory and search LKey of the address to return.
+ *
+ * @param dev
+ * Pointer to Ethernet device.
+ * @param addr
+ * Search key.
+ * @param mp
+ * Pointer to registering Mempool where addr belongs.
+ *
+ * @return
+ * LKey for address on success, UINT32_MAX on failure.
+ */
+uint32_t
+mlx5_tx_update_ext_mp(struct mlx5_txq_data *txq, uintptr_t addr,
+ struct rte_mempool *mp)
+{
+ struct mlx5_txq_ctrl *txq_ctrl =
+ container_of(txq, struct mlx5_txq_ctrl, txq);
+ struct mlx5_mr_ctrl *mr_ctrl = &txq->mr_ctrl;
+ struct mlx5_priv *priv = txq_ctrl->priv;
+
+ if (rte_eal_process_type() != RTE_PROC_PRIMARY) {
+ DRV_LOG(WARNING,
+ "port %u using address (%p) from unregistered mempool"
+ " having externally allocated memory"
+ " in secondary process, please create mempool"
+ " prior to rte_eth_dev_start()",
+ PORT_ID(priv), (void *)addr);
+ return UINT32_MAX;
+ }
+ mlx5_mr_update_ext_mp(ETH_DEV(priv), mr_ctrl, mp);
+ return mlx5_tx_addr2mr_bh(txq, addr);
+}
+
+/* Called during rte_mempool_mem_iter() by mlx5_mr_update_mp(). */
+static void
+mlx5_mr_update_mp_cb(struct rte_mempool *mp __rte_unused, void *opaque,
+ struct rte_mempool_memhdr *memhdr,
+ unsigned mem_idx __rte_unused)
+{
+ struct mr_update_mp_data *data = opaque;
+ struct rte_eth_dev *dev = data->dev;
+ struct mlx5_priv *priv = dev->data->dev_private;
+
+ uint32_t lkey;
+
+ /* Stop iteration if failed in the previous walk. */
+ if (data->ret < 0)