Re: [dpdk-dev] Cannot run l3fwd with the problem of " nb_tx_queues"

["Zachary.Jen (簡汶翰) : 6305" <Zachary.Jen@cas-well.com>]

Hi,

I also have the same question in l3fwd example.
I guess may DPDK don't support the chip-set so that we got this error msg.

In my system, I have 2 kinds of chip-set, 82580 & 82574L.
If I use l3fwd -c 3 -n 1 -- -p 3 --config '(0,0,0),(1,0,1)' in 82574L,
it will get the error msg.
But when I change my card with 82580 and use the same command to execute
DPDK l3fwd.
It's working.

So, maybe the root cause is the DPDK does not support your chip-set and
send out this error msg.

On 11/14/2013 04:31 PM, Jose Gavine Cueto wrote:
> Hi,
>
> Your nic (port 0) is capable of 1 txq only see error:
>
> " port_id=0 nb_tx_queues=2 > 1"
>
> I think that caused the error.
>
> Cheers,
> Pepe
>
>
> On Thu, Nov 14, 2013 at 1:21 PM, yuxuan zhang <zhangyuxuanxd@gmail.com>wrote:
>
>>   Hi Everyone:
>>
>> I meet a problem with running the DPDK1.3 example l3fwd in the VMware. I
>> have two 82545EM NIC to run the l3fwd and the OS is Cent6.4. But l3fwd
>> cannot be configured port correctly .I start the l3fwd with following
>> command:
>>
>>      ./build/l3fwd  -c 0x3 -n 2 -- -p 0x3 --config="(0,0,0),(1,0,1)"
>>
>> However, I get following errors with debug info:
>>
>>      Initializing port 0 ... Creating queues: nb_rxq=1 nb_txq=2... PMD:
>> rte_eth_dev_configure: ethdev     port_id=0 nb_tx_queues=2 > 1
>>      EAL: Error - exiting with code: 1
>>      Cause: Cannot configure device: err=-22, port=0
>>
>> And I have known that the reason for this problem produced in the
>> **rte_eth_dev_configure function**. However, I do not kown how to fix it.
>>
>> I would really appreciate If someone could provide some help to solve this
>> issue.
>>
>
>

--
Best Regards,
Zachary
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