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From: oulijun <oulijun@huawei.com>
To: Thomas Monjalon <thomas@monjalon.net>
Cc: <linuxarm@openeuler.org>, dev <dev@dpdk.org>
Subject: Re: [dpdk-dev] [Linuxarm] Re: [PATCH V2] app/testpmd: support Tx mbuf free on demand cmd
Date: Wed, 17 Mar 2021 19:30:41 +0800
Message-ID: <aa851503-638b-6c13-bad4-7a961353fd78@huawei.com> (raw)
In-Reply-To: <13135629.FDAB5nOBdD@thomas>



在 2021/3/12 19:21, Thomas Monjalon 写道:
> 12/03/2021 11:29, oulijun:
>> 2021/3/10 15:59, Thomas Monjalon:
>>> 10/03/2021 02:48, oulijun:
>>>> Can we add an API such as rte_eth_get_device(pord_id)
>>>>
>>>> for example:
>>>> struct rte_eth_dev *
>>>> rte_eth_get_device(uint16_t port_id)
>>>> {
>>>>           return &rte_eth_devices[port_id];
>>>> }
>>> An application is not supposed to access the struct rte_eth_dev.
>>> Which info do you need from this struct?
>>
>> Applications cannot directly access the global variable
>> rte_eth_devices[]. To obtain information about rte_eth_dev, they need to
>> access the global variable through APIs instead of directly.
> 
> That's not the question.
> Which device info do you need, which is not already provided by
> one of the function rte_eth_*info* ?
> 	rte_eth_dev_get_dcb_info
> 	rte_eth_dev_get_reg_info
> 	rte_eth_dev_info_get
> 	rte_eth_rx_queue_info_get
> 	rte_eth_tx_queue_info_get
> 	rte_eth_dev_get_module_info
> 
Hi, Thomas
   I think dev->data->nb_tx_queues can be obtained through 
rte_eth_info_get, but dev->data->tx_queue_state[queue_id] has nowhere to 
be obtained. I think a patch needs to be added to obtain 
tx_queue_state[queue_id] through rte_eth_tx_queue_info_get. What do you 
think?

Thanks
Lijun Ou
> 
> 
> .
> 

  reply	other threads:[~2021-03-17 11:30 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-05  7:33 [dpdk-dev] [PATCH] " Lijun Ou
2021-03-05  7:46 ` Li, Xiaoyun
2021-03-05  9:58   ` oulijun
2021-03-05  9:57 ` [dpdk-dev] [PATCH V2] " Lijun Ou
2021-03-08 17:33   ` Ferruh Yigit
2021-03-09  8:49     ` oulijun
2021-03-09  9:53       ` Ferruh Yigit
2021-03-09  9:57         ` Thomas Monjalon
2021-03-09 10:18           ` Andrew Rybchenko
2021-03-09 14:00         ` Aaron Conole
2021-03-09 14:13           ` Ferruh Yigit
2021-03-10  1:48         ` oulijun
2021-03-10  7:59           ` Thomas Monjalon
2021-03-12 10:29             ` [dpdk-dev] [Linuxarm] " oulijun
2021-03-12 11:21               ` Thomas Monjalon
2021-03-17 11:30                 ` oulijun [this message]
2021-03-17 12:07                   ` Thomas Monjalon
2021-03-18  3:56                     ` oulijun
2021-03-18  7:51                       ` Thomas Monjalon
2021-04-12 13:12   ` [dpdk-dev] [PATCH V3] " Lijun Ou
2021-04-19  3:11     ` Li, Xiaoyun
2021-04-19 12:40       ` oulijun
2021-04-19 14:56         ` Ferruh Yigit
2021-04-19 12:36     ` [dpdk-dev] [PATCH V4] " Lijun Ou
2021-04-19 15:28       ` Ferruh Yigit
2021-04-21  1:44         ` oulijun
2021-04-21  8:09       ` [dpdk-dev] [PATCH V5] app/test-pmd: support cleanup txq mbufs command Lijun Ou
2021-04-21  8:15         ` Ferruh Yigit
2021-04-21  8:32           ` oulijun
2021-04-21  8:45         ` [dpdk-dev] [PATCH V6] " Lijun Ou
2021-04-21 11:26           ` Ferruh Yigit

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