[dpdk-dev] [PATCH v2 02/28] ethdev: Remove assumption that port will not be detached

[Zhang, Helin]

> -----Original Message-----
> From: dev [mailto:dev-bounces at dpdk.org] On Behalf Of Tetsuya Mukawa
> Sent: Tuesday, December 9, 2014 11:42 AM
> To: dev at dpdk.org
> Cc: nakajima.yoshihiro at lab.ntt.co.jp; menrigh at brocade.com;
> masutani.hitoshi at lab.ntt.co.jp
> Subject: [dpdk-dev] [PATCH v2 02/28] ethdev: Remove assumption that port will
> not be detached
> 
> To remove assumption, do like followings.
> 
> - Add 'attached' member to rte_eth_dev structure.
>   This member is used for indicating the port is attached, or not.
> - Add rte_eth_dev_allocate_new_port().
>   This function is used for allocating new port.
> 
> Signed-off-by: Tetsuya Mukawa <mukawa at igel.co.jp>
> ---
>  lib/librte_ether/rte_ethdev.c | 248 ++++++++++++++++++++++++------------------
>  lib/librte_ether/rte_ethdev.h |   5 +
>  2 files changed, 149 insertions(+), 104 deletions(-)
> 
> diff --git a/lib/librte_ether/rte_ethdev.c b/lib/librte_ether/rte_ethdev.c index
> 95f2ceb..9f713ae 100644
> --- a/lib/librte_ether/rte_ethdev.c
> +++ b/lib/librte_ether/rte_ethdev.c
> @@ -175,6 +175,16 @@ enum {
>  	STAT_QMAP_RX
>  };
> 
> +enum {
> +	DEV_VALID = 0,
> +	DEV_INVALID
> +};
Would it be safer to define DEV_INVALID = 0, then DEV_VALID after it?
Or even as below?
Enum {
	DEV_UNKNOWN = 0,
	DEV_VALID,
	DEV_INVALID
};

Regards,
Helin

> +
> +enum {
> +	DEV_DISCONNECTED = 0,
> +	DEV_CONNECTED
> +};
> +
>  static inline void
>  rte_eth_dev_data_alloc(void)
>  {
> @@ -201,19 +211,34 @@ rte_eth_dev_allocated(const char *name)  {
>  	unsigned i;
> 
> -	for (i = 0; i < nb_ports; i++) {
> -		if (strcmp(rte_eth_devices[i].data->name, name) == 0)
> +	for (i = 0; i < RTE_MAX_ETHPORTS; i++) {
> +		if ((rte_eth_devices[i].attached == DEV_CONNECTED)
> +				&& strcmp(rte_eth_devices[i].data->name,
> +					name) == 0)
>  			return &rte_eth_devices[i];
>  	}
>  	return NULL;
>  }
> 
> +static uint8_t
> +rte_eth_dev_allocate_new_port(void)
> +{
> +	unsigned i;
> +
> +	for (i = 0; i < RTE_MAX_ETHPORTS; i++)
> +		if (rte_eth_devices[i].attached == DEV_DISCONNECTED)
> +			return i;
> +	return RTE_MAX_ETHPORTS;
> +}
> +
>  struct rte_eth_dev *
>  rte_eth_dev_allocate(const char *name)
>  {
> +	uint8_t port_id;
>  	struct rte_eth_dev *eth_dev;
> 
> -	if (nb_ports == RTE_MAX_ETHPORTS) {
> +	port_id = rte_eth_dev_allocate_new_port();
> +	if (port_id == RTE_MAX_ETHPORTS) {
>  		PMD_DEBUG_TRACE("Reached maximum number of Ethernet
> ports\n");
>  		return NULL;
>  	}
> @@ -226,10 +251,12 @@ rte_eth_dev_allocate(const char *name)
>  		return NULL;
>  	}
> 
> -	eth_dev = &rte_eth_devices[nb_ports];
> -	eth_dev->data = &rte_eth_dev_data[nb_ports];
> +	eth_dev = &rte_eth_devices[port_id];
> +	eth_dev->data = &rte_eth_dev_data[port_id];
>  	snprintf(eth_dev->data->name, sizeof(eth_dev->data->name), "%s",
> name);
> -	eth_dev->data->port_id = nb_ports++;
> +	eth_dev->data->port_id = port_id;
> +	eth_dev->attached = DEV_CONNECTED;
> +	nb_ports++;
>  	return eth_dev;
>  }
> 
> @@ -283,6 +310,7 @@ rte_eth_dev_init(struct rte_pci_driver *pci_drv,
>  			(unsigned) pci_dev->id.device_id);
>  	if (rte_eal_process_type() == RTE_PROC_PRIMARY)
>  		rte_free(eth_dev->data->dev_private);
> +	eth_dev->attached = DEV_DISCONNECTED;
>  	nb_ports--;
>  	return diag;
>  }
> @@ -308,10 +336,22 @@ rte_eth_driver_register(struct eth_driver *eth_drv)
>  	rte_eal_pci_register(&eth_drv->pci_drv);
>  }
> 
> +static int
> +rte_eth_dev_validate_port(uint8_t port_id) {
> +	if (port_id >= RTE_MAX_ETHPORTS)
> +		return DEV_INVALID;
> +
> +	if (rte_eth_devices[port_id].attached == DEV_CONNECTED)
> +		return DEV_VALID;
> +	else
> +		return DEV_INVALID;
> +}
> +
>  int
>  rte_eth_dev_socket_id(uint8_t port_id)
>  {
> -	if (port_id >= nb_ports)
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID)
>  		return -1;
>  	return rte_eth_devices[port_id].pci_dev->numa_node;
>  }
> @@ -369,7 +409,7 @@ rte_eth_dev_rx_queue_start(uint8_t port_id, uint16_t
> rx_queue_id)
>  	 * in a multi-process setup*/
>  	PROC_PRIMARY_OR_ERR_RET(-E_RTE_SECONDARY);
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return -EINVAL;
>  	}
> @@ -395,7 +435,7 @@ rte_eth_dev_rx_queue_stop(uint8_t port_id, uint16_t
> rx_queue_id)
>  	 * in a multi-process setup*/
>  	PROC_PRIMARY_OR_ERR_RET(-E_RTE_SECONDARY);
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return -EINVAL;
>  	}
> @@ -421,7 +461,7 @@ rte_eth_dev_tx_queue_start(uint8_t port_id, uint16_t
> tx_queue_id)
>  	 * in a multi-process setup*/
>  	PROC_PRIMARY_OR_ERR_RET(-E_RTE_SECONDARY);
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return -EINVAL;
>  	}
> @@ -447,7 +487,7 @@ rte_eth_dev_tx_queue_stop(uint8_t port_id, uint16_t
> tx_queue_id)
>  	 * in a multi-process setup*/
>  	PROC_PRIMARY_OR_ERR_RET(-E_RTE_SECONDARY);
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return -EINVAL;
>  	}
> @@ -662,7 +702,7 @@ rte_eth_dev_configure(uint8_t port_id, uint16_t
> nb_rx_q, uint16_t nb_tx_q,
>  	 * in a multi-process setup*/
>  	PROC_PRIMARY_OR_ERR_RET(-E_RTE_SECONDARY);
> 
> -	if (port_id >= nb_ports || port_id >= RTE_MAX_ETHPORTS) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return (-EINVAL);
>  	}
> @@ -847,7 +887,7 @@ rte_eth_dev_start(uint8_t port_id)
>  	 * in a multi-process setup*/
>  	PROC_PRIMARY_OR_ERR_RET(-E_RTE_SECONDARY);
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%" PRIu8 "\n", port_id);
>  		return (-EINVAL);
>  	}
> @@ -882,7 +922,7 @@ rte_eth_dev_stop(uint8_t port_id)
>  	 * in a multi-process setup*/
>  	PROC_PRIMARY_OR_RET();
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%" PRIu8 "\n", port_id);
>  		return;
>  	}
> @@ -910,7 +950,7 @@ rte_eth_dev_set_link_up(uint8_t port_id)
>  	 * in a multi-process setup*/
>  	PROC_PRIMARY_OR_ERR_RET(-E_RTE_SECONDARY);
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return -EINVAL;
>  	}
> @@ -929,7 +969,7 @@ rte_eth_dev_set_link_down(uint8_t port_id)
>  	 * in a multi-process setup*/
>  	PROC_PRIMARY_OR_ERR_RET(-E_RTE_SECONDARY);
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return -EINVAL;
>  	}
> @@ -948,7 +988,7 @@ rte_eth_dev_close(uint8_t port_id)
>  	 * in a multi-process setup*/
>  	PROC_PRIMARY_OR_RET();
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return;
>  	}
> @@ -976,7 +1016,7 @@ rte_eth_rx_queue_setup(uint8_t port_id, uint16_t
> rx_queue_id,
>  	 * in a multi-process setup*/
>  	PROC_PRIMARY_OR_ERR_RET(-E_RTE_SECONDARY);
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return (-EINVAL);
>  	}
> @@ -1049,7 +1089,7 @@ rte_eth_tx_queue_setup(uint8_t port_id, uint16_t
> tx_queue_id,
>  	 * in a multi-process setup*/
>  	PROC_PRIMARY_OR_ERR_RET(-E_RTE_SECONDARY);
> 
> -	if (port_id >= RTE_MAX_ETHPORTS || port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return (-EINVAL);
>  	}
> @@ -1082,7 +1122,7 @@ rte_eth_promiscuous_enable(uint8_t port_id)  {
>  	struct rte_eth_dev *dev;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return;
>  	}
> @@ -1098,7 +1138,7 @@ rte_eth_promiscuous_disable(uint8_t port_id)  {
>  	struct rte_eth_dev *dev;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return;
>  	}
> @@ -1114,7 +1154,7 @@ rte_eth_promiscuous_get(uint8_t port_id)  {
>  	struct rte_eth_dev *dev;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return -1;
>  	}
> @@ -1128,7 +1168,7 @@ rte_eth_allmulticast_enable(uint8_t port_id)  {
>  	struct rte_eth_dev *dev;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return;
>  	}
> @@ -1144,7 +1184,7 @@ rte_eth_allmulticast_disable(uint8_t port_id)  {
>  	struct rte_eth_dev *dev;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return;
>  	}
> @@ -1160,7 +1200,7 @@ rte_eth_allmulticast_get(uint8_t port_id)  {
>  	struct rte_eth_dev *dev;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return -1;
>  	}
> @@ -1188,7 +1228,7 @@ rte_eth_link_get(uint8_t port_id, struct
> rte_eth_link *eth_link)  {
>  	struct rte_eth_dev *dev;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return;
>  	}
> @@ -1208,7 +1248,7 @@ rte_eth_link_get_nowait(uint8_t port_id, struct
> rte_eth_link *eth_link)  {
>  	struct rte_eth_dev *dev;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return;
>  	}
> @@ -1228,7 +1268,7 @@ rte_eth_stats_get(uint8_t port_id, struct
> rte_eth_stats *stats)  {
>  	struct rte_eth_dev *dev;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return;
>  	}
> @@ -1245,7 +1285,7 @@ rte_eth_stats_reset(uint8_t port_id)  {
>  	struct rte_eth_dev *dev;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return;
>  	}
> @@ -1266,7 +1306,7 @@ rte_eth_xstats_get(uint8_t port_id, struct
> rte_eth_xstats *xstats,
>  	uint64_t val;
>  	char *stats_ptr;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return -1;
>  	}
> @@ -1335,7 +1375,7 @@ rte_eth_xstats_reset(uint8_t port_id)  {
>  	struct rte_eth_dev *dev;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return;
>  	}
> @@ -1357,7 +1397,7 @@ set_queue_stats_mapping(uint8_t port_id, uint16_t
> queue_id, uint8_t stat_idx,  {
>  	struct rte_eth_dev *dev;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return -ENODEV;
>  	}
> @@ -1392,7 +1432,7 @@ rte_eth_dev_info_get(uint8_t port_id, struct
> rte_eth_dev_info *dev_info)  {
>  	struct rte_eth_dev *dev;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return;
>  	}
> @@ -1412,7 +1452,7 @@ rte_eth_macaddr_get(uint8_t port_id, struct
> ether_addr *mac_addr)  {
>  	struct rte_eth_dev *dev;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return;
>  	}
> @@ -1426,7 +1466,7 @@ rte_eth_dev_get_mtu(uint8_t port_id, uint16_t
> *mtu)  {
>  	struct rte_eth_dev *dev;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return (-ENODEV);
>  	}
> @@ -1442,7 +1482,7 @@ rte_eth_dev_set_mtu(uint8_t port_id, uint16_t
> mtu)
>  	int ret;
>  	struct rte_eth_dev *dev;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return (-ENODEV);
>  	}
> @@ -1462,7 +1502,7 @@ rte_eth_dev_vlan_filter(uint8_t port_id, uint16_t
> vlan_id, int on)  {
>  	struct rte_eth_dev *dev;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return (-ENODEV);
>  	}
> @@ -1487,7 +1527,7 @@ rte_eth_dev_set_vlan_strip_on_queue(uint8_t
> port_id, uint16_t rx_queue_id, int o  {
>  	struct rte_eth_dev *dev;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return (-ENODEV);
>  	}
> @@ -1509,7 +1549,7 @@ rte_eth_dev_set_vlan_ether_type(uint8_t port_id,
> uint16_t tpid)  {
>  	struct rte_eth_dev *dev;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return (-ENODEV);
>  	}
> @@ -1529,7 +1569,7 @@ rte_eth_dev_set_vlan_offload(uint8_t port_id, int
> offload_mask)
>  	int mask = 0;
>  	int cur, org = 0;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return (-ENODEV);
>  	}
> @@ -1574,7 +1614,7 @@ rte_eth_dev_get_vlan_offload(uint8_t port_id)
>  	struct rte_eth_dev *dev;
>  	int ret = 0;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return (-ENODEV);
>  	}
> @@ -1598,7 +1638,7 @@ rte_eth_dev_set_vlan_pvid(uint8_t port_id,
> uint16_t pvid, int on)  {
>  	struct rte_eth_dev *dev;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return (-ENODEV);
>  	}
> @@ -1616,7 +1656,7 @@ rte_eth_dev_fdir_add_signature_filter(uint8_t
> port_id,  {
>  	struct rte_eth_dev *dev;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return (-ENODEV);
>  	}
> @@ -1650,7 +1690,7 @@ rte_eth_dev_fdir_update_signature_filter(uint8_t
> port_id,  {
>  	struct rte_eth_dev *dev;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return (-ENODEV);
>  	}
> @@ -1684,7 +1724,7 @@ rte_eth_dev_fdir_remove_signature_filter(uint8_t
> port_id,  {
>  	struct rte_eth_dev *dev;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return (-ENODEV);
>  	}
> @@ -1715,7 +1755,7 @@ rte_eth_dev_fdir_get_infos(uint8_t port_id, struct
> rte_eth_fdir *fdir)  {
>  	struct rte_eth_dev *dev;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return (-ENODEV);
>  	}
> @@ -1740,7 +1780,7 @@ rte_eth_dev_fdir_add_perfect_filter(uint8_t port_id,
> {
>  	struct rte_eth_dev *dev;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return (-ENODEV);
>  	}
> @@ -1780,7 +1820,7 @@ rte_eth_dev_fdir_update_perfect_filter(uint8_t
> port_id,  {
>  	struct rte_eth_dev *dev;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return (-ENODEV);
>  	}
> @@ -1818,7 +1858,7 @@ rte_eth_dev_fdir_remove_perfect_filter(uint8_t
> port_id,  {
>  	struct rte_eth_dev *dev;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return (-ENODEV);
>  	}
> @@ -1854,7 +1894,7 @@ rte_eth_dev_fdir_set_masks(uint8_t port_id, struct
> rte_fdir_masks *fdir_mask)  {
>  	struct rte_eth_dev *dev;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return (-ENODEV);
>  	}
> @@ -1874,7 +1914,7 @@ rte_eth_dev_flow_ctrl_get(uint8_t port_id, struct
> rte_eth_fc_conf *fc_conf)  {
>  	struct rte_eth_dev *dev;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return (-ENODEV);
>  	}
> @@ -1890,7 +1930,7 @@ rte_eth_dev_flow_ctrl_set(uint8_t port_id, struct
> rte_eth_fc_conf *fc_conf)  {
>  	struct rte_eth_dev *dev;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return (-ENODEV);
>  	}
> @@ -1910,7 +1950,7 @@ rte_eth_dev_priority_flow_ctrl_set(uint8_t port_id,
> struct rte_eth_pfc_conf *pfc  {
>  	struct rte_eth_dev *dev;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return (-ENODEV);
>  	}
> @@ -2019,7 +2059,7 @@ rte_eth_dev_rss_reta_query(uint8_t port_id,
>  	struct rte_eth_dev *dev;
>  	int ret;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return -ENODEV;
>  	}
> @@ -2040,7 +2080,7 @@ rte_eth_dev_rss_hash_update(uint8_t port_id,
> struct rte_eth_rss_conf *rss_conf)
>  	struct rte_eth_dev *dev;
>  	uint16_t rss_hash_protos;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return (-ENODEV);
>  	}
> @@ -2062,7 +2102,7 @@ rte_eth_dev_rss_hash_conf_get(uint8_t port_id,  {
>  	struct rte_eth_dev *dev;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return (-ENODEV);
>  	}
> @@ -2077,7 +2117,7 @@ rte_eth_dev_udp_tunnel_add(uint8_t port_id,  {
>  	struct rte_eth_dev *dev;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return -ENODEV;
>  	}
> @@ -2103,7 +2143,7 @@ rte_eth_dev_udp_tunnel_delete(uint8_t port_id,  {
>  	struct rte_eth_dev *dev;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return -ENODEV;
>  	}
> @@ -2128,7 +2168,7 @@ rte_eth_led_on(uint8_t port_id)  {
>  	struct rte_eth_dev *dev;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return (-ENODEV);
>  	}
> @@ -2143,7 +2183,7 @@ rte_eth_led_off(uint8_t port_id)  {
>  	struct rte_eth_dev *dev;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return (-ENODEV);
>  	}
> @@ -2183,7 +2223,7 @@ rte_eth_dev_mac_addr_add(uint8_t port_id, struct
> ether_addr *addr,
>  	int index;
>  	uint64_t pool_mask;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return (-ENODEV);
>  	}
> @@ -2234,7 +2274,7 @@ rte_eth_dev_mac_addr_remove(uint8_t port_id,
> struct ether_addr *addr)
>  	struct rte_eth_dev *dev;
>  	int index;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return (-ENODEV);
>  	}
> @@ -2268,7 +2308,7 @@ rte_eth_dev_set_vf_rxmode(uint8_t port_id,
> uint16_t vf,
>  	struct rte_eth_dev *dev;
>  	struct rte_eth_dev_info dev_info;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("set VF RX mode:Invalid port_id=%d\n",
>  				port_id);
>  		return (-ENODEV);
> @@ -2323,7 +2363,7 @@ rte_eth_dev_uc_hash_table_set(uint8_t port_id,
> struct ether_addr *addr,
>  	int ret;
>  	struct rte_eth_dev *dev;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("unicast hash setting:Invalid port_id=%d\n",
>  			port_id);
>  		return (-ENODEV);
> @@ -2376,7 +2416,7 @@ rte_eth_dev_uc_all_hash_table_set(uint8_t port_id,
> uint8_t on)  {
>  	struct rte_eth_dev *dev;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("unicast hash setting:Invalid port_id=%d\n",
>  			port_id);
>  		return (-ENODEV);
> @@ -2395,7 +2435,7 @@ rte_eth_dev_set_vf_rx(uint8_t port_id,uint16_t vf,
> uint8_t on)
>  	struct rte_eth_dev *dev;
>  	struct rte_eth_dev_info dev_info;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return (-ENODEV);
>  	}
> @@ -2421,7 +2461,7 @@ rte_eth_dev_set_vf_tx(uint8_t port_id,uint16_t vf,
> uint8_t on)
>  	struct rte_eth_dev *dev;
>  	struct rte_eth_dev_info dev_info;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("set pool tx:Invalid port_id=%d\n", port_id);
>  		return (-ENODEV);
>  	}
> @@ -2446,7 +2486,7 @@ rte_eth_dev_set_vf_vlan_filter(uint8_t port_id,
> uint16_t vlan_id,  {
>  	struct rte_eth_dev *dev;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("VF VLAN filter:invalid port id=%d\n",
>  				port_id);
>  		return (-ENODEV);
> @@ -2477,7 +2517,7 @@ int rte_eth_set_queue_rate_limit(uint8_t port_id,
> uint16_t queue_idx,
>  	struct rte_eth_dev_info dev_info;
>  	struct rte_eth_link link;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("set queue rate limit:invalid port id=%d\n",
>  				port_id);
>  		return -ENODEV;
> @@ -2514,7 +2554,7 @@ int rte_eth_set_vf_rate_limit(uint8_t port_id,
> uint16_t vf, uint16_t tx_rate,
>  	if (q_msk == 0)
>  		return 0;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("set VF rate limit:invalid port id=%d\n",
>  				port_id);
>  		return -ENODEV;
> @@ -2548,7 +2588,7 @@ rte_eth_mirror_rule_set(uint8_t port_id,  {
>  	struct rte_eth_dev *dev = &rte_eth_devices[port_id];
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return (-ENODEV);
>  	}
> @@ -2589,7 +2629,7 @@ rte_eth_mirror_rule_reset(uint8_t port_id, uint8_t
> rule_id)  {
>  	struct rte_eth_dev *dev = &rte_eth_devices[port_id];
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return (-ENODEV);
>  	}
> @@ -2614,7 +2654,7 @@ rte_eth_rx_burst(uint8_t port_id, uint16_t
> queue_id,  {
>  	struct rte_eth_dev *dev;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return 0;
>  	}
> @@ -2634,7 +2674,7 @@ rte_eth_tx_burst(uint8_t port_id, uint16_t
> queue_id,  {
>  	struct rte_eth_dev *dev;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return 0;
>  	}
> @@ -2654,7 +2694,7 @@ rte_eth_rx_queue_count(uint8_t port_id, uint16_t
> queue_id)  {
>  	struct rte_eth_dev *dev;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return 0;
>  	}
> @@ -2668,7 +2708,7 @@ rte_eth_rx_descriptor_done(uint8_t port_id,
> uint16_t queue_id, uint16_t offset)  {
>  	struct rte_eth_dev *dev;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return (-ENODEV);
>  	}
> @@ -2689,7 +2729,7 @@ rte_eth_dev_callback_register(uint8_t port_id,
> 
>  	if (!cb_fn)
>  		return (-EINVAL);
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return (-EINVAL);
>  	}
> @@ -2729,7 +2769,7 @@ rte_eth_dev_callback_unregister(uint8_t port_id,
> 
>  	if (!cb_fn)
>  		return (-EINVAL);
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return (-EINVAL);
>  	}
> @@ -2789,7 +2829,7 @@ int rte_eth_dev_bypass_init(uint8_t port_id)  {
>  	struct rte_eth_dev *dev;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return (-ENODEV);
>  	}
> @@ -2809,7 +2849,7 @@ rte_eth_dev_bypass_state_show(uint8_t port_id,
> uint32_t *state)  {
>  	struct rte_eth_dev *dev;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return (-ENODEV);
>  	}
> @@ -2828,7 +2868,7 @@ rte_eth_dev_bypass_state_set(uint8_t port_id,
> uint32_t *new_state)  {
>  	struct rte_eth_dev *dev;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return (-ENODEV);
>  	}
> @@ -2848,7 +2888,7 @@ rte_eth_dev_bypass_event_show(uint8_t port_id,
> uint32_t event, uint32_t *state)  {
>  	struct rte_eth_dev *dev;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return (-ENODEV);
>  	}
> @@ -2868,7 +2908,7 @@ rte_eth_dev_bypass_event_store(uint8_t port_id,
> uint32_t event, uint32_t state)  {
>  	struct rte_eth_dev *dev;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return (-ENODEV);
>  	}
> @@ -2888,7 +2928,7 @@ rte_eth_dev_wd_timeout_store(uint8_t port_id,
> uint32_t timeout)  {
>  	struct rte_eth_dev *dev;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return (-ENODEV);
>  	}
> @@ -2908,7 +2948,7 @@ rte_eth_dev_bypass_ver_show(uint8_t port_id,
> uint32_t *ver)  {
>  	struct rte_eth_dev *dev;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return (-ENODEV);
>  	}
> @@ -2928,7 +2968,7 @@ rte_eth_dev_bypass_wd_timeout_show(uint8_t
> port_id, uint32_t *wd_timeout)  {
>  	struct rte_eth_dev *dev;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return (-ENODEV);
>  	}
> @@ -2948,7 +2988,7 @@ rte_eth_dev_bypass_wd_reset(uint8_t port_id)  {
>  	struct rte_eth_dev *dev;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return (-ENODEV);
>  	}
> @@ -2970,7 +3010,7 @@ rte_eth_dev_add_syn_filter(uint8_t port_id,  {
>  	struct rte_eth_dev *dev;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return -ENODEV;
>  	}
> @@ -2985,7 +3025,7 @@ rte_eth_dev_remove_syn_filter(uint8_t port_id)  {
>  	struct rte_eth_dev *dev;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return -ENODEV;
>  	}
> @@ -3004,7 +3044,7 @@ rte_eth_dev_get_syn_filter(uint8_t port_id,
>  	if (filter == NULL || rx_queue == NULL)
>  		return -EINVAL;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return -ENODEV;
>  	}
> @@ -3020,7 +3060,7 @@ rte_eth_dev_add_ethertype_filter(uint8_t port_id,
> uint16_t index,  {
>  	struct rte_eth_dev *dev;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return -ENODEV;
>  	}
> @@ -3041,7 +3081,7 @@ rte_eth_dev_remove_ethertype_filter(uint8_t
> port_id,  uint16_t index)  {
>  	struct rte_eth_dev *dev;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return -ENODEV;
>  	}
> @@ -3060,7 +3100,7 @@ rte_eth_dev_get_ethertype_filter(uint8_t port_id,
> uint16_t index,
>  	if (filter == NULL || rx_queue == NULL)
>  		return -EINVAL;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return -ENODEV;
>  	}
> @@ -3077,7 +3117,7 @@ rte_eth_dev_add_2tuple_filter(uint8_t port_id,
> uint16_t index,  {
>  	struct rte_eth_dev *dev;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return -ENODEV;
>  	}
> @@ -3099,7 +3139,7 @@ rte_eth_dev_remove_2tuple_filter(uint8_t port_id,
> uint16_t index)  {
>  	struct rte_eth_dev *dev;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return -ENODEV;
>  	}
> @@ -3118,7 +3158,7 @@ rte_eth_dev_get_2tuple_filter(uint8_t port_id,
> uint16_t index,
>  	if (filter == NULL || rx_queue == NULL)
>  		return -EINVAL;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return -ENODEV;
>  	}
> @@ -3134,7 +3174,7 @@ rte_eth_dev_add_5tuple_filter(uint8_t port_id,
> uint16_t index,  {
>  	struct rte_eth_dev *dev;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return -ENODEV;
>  	}
> @@ -3157,7 +3197,7 @@ rte_eth_dev_remove_5tuple_filter(uint8_t port_id,
> uint16_t index)  {
>  	struct rte_eth_dev *dev;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return -ENODEV;
>  	}
> @@ -3176,7 +3216,7 @@ rte_eth_dev_get_5tuple_filter(uint8_t port_id,
> uint16_t index,
>  	if (filter == NULL || rx_queue == NULL)
>  		return -EINVAL;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return -ENODEV;
>  	}
> @@ -3193,7 +3233,7 @@ rte_eth_dev_add_flex_filter(uint8_t port_id,
> uint16_t index,  {
>  	struct rte_eth_dev *dev;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return -ENODEV;
>  	}
> @@ -3208,7 +3248,7 @@ rte_eth_dev_remove_flex_filter(uint8_t port_id,
> uint16_t index)  {
>  	struct rte_eth_dev *dev;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return -ENODEV;
>  	}
> @@ -3227,7 +3267,7 @@ rte_eth_dev_get_flex_filter(uint8_t port_id,
> uint16_t index,
>  	if (filter == NULL || rx_queue == NULL)
>  		return -EINVAL;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return -ENODEV;
>  	}
> @@ -3243,7 +3283,7 @@ rte_eth_dev_filter_supported(uint8_t port_id,
> enum rte_filter_type filter_type)  {
>  	struct rte_eth_dev *dev;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return -ENODEV;
>  	}
> @@ -3260,7 +3300,7 @@ rte_eth_dev_filter_ctrl(uint8_t port_id, enum
> rte_filter_type filter_type,  {
>  	struct rte_eth_dev *dev;
> 
> -	if (port_id >= nb_ports) {
> +	if (rte_eth_dev_validate_port(port_id) == DEV_INVALID) {
>  		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
>  		return -ENODEV;
>  	}
> diff --git a/lib/librte_ether/rte_ethdev.h b/lib/librte_ether/rte_ethdev.h index
> f66805d..257de86 100644
> --- a/lib/librte_ether/rte_ethdev.h
> +++ b/lib/librte_ether/rte_ethdev.h
> @@ -1565,6 +1565,7 @@ struct rte_eth_dev {
>  	struct eth_dev_ops *dev_ops;    /**< Functions exported by PMD */
>  	struct rte_pci_device *pci_dev; /**< PCI info. supplied by probing */
>  	struct rte_eth_dev_cb_list callbacks; /**< User application callbacks */
> +	uint8_t attached; /**< Flag indicating the port is attached */
>  };
> 
>  struct rte_eth_dev_sriov {
> @@ -1630,6 +1631,10 @@ extern struct rte_eth_dev rte_eth_devices[];
>   * initialized by the [matching] Ethernet driver during the PCI probing phase.
>   * All devices whose port identifier is in the range
>   * [0,  rte_eth_dev_count() - 1] can be operated on by network applications.
> + * immediately after invoking rte_eal_init().
> + * If the application unplugs a port using hotplug function, The
> + enabled port
> + * numbers may be noncontiguous. In the case, the applications need to
> + manage
> + * enabled port by themselves.
>   *
>   * @return
>   *   - The total number of usable Ethernet devices.
> --
> 1.9.1