[dpdk-users] cannot allocate more than one vdev device of a type

[dpdk-users] cannot allocate more than one vdev device of a type

[Dirk-Holger Lenz]

it is not possible to allocate more than one vdev of a type

(e.g. crypto_openssl or crypto_aesni_mb).

Our application may use several crypto devices which may

be virtual devices.

In the past it was possible to have several arguments of

--vdev (as much as devices needed)

(e.g. --vdev=crypto_openssl) given to rte_eal_init().

In the current version (17.08rc3) in any case only one device

is allocated.

In our case we are using dpdk built as shared libraries.

This happens due to the check in vdev_scan():

         dev = find_vdev(devargs->name);
         if (dev)
             continue;

and in rte_cryptodev_pmd_allocate()

     if (rte_cryptodev_pmd_get_named_dev(name) != NULL) {
         CDEV_LOG_ERR("Crypto device with name %s already "
                 "allocated!", name);
         return NULL;
     }

Re: [dpdk-users] cannot allocate more than one vdev device of a type

[De Lara Guarch, Pablo]

Hi Dirk,

> -----Original Message-----
> From: users [mailto:users-bounces@dpdk.org] On Behalf Of Dirk-Holger
> Lenz
> Sent: Thursday, August 3, 2017 2:46 PM
> To: users@dpdk.org
> Subject: [dpdk-users] cannot allocate more than one vdev device of a type
> 
> it is not possible to allocate more than one vdev of a type
> 
> (e.g. crypto_openssl or crypto_aesni_mb).

You should use different suffixes when using a same crypto driver:

i.e. --vdev "crypto_openssl1" --vdev "crypto_openssl2".

Regards,
Pablo

Re: [dpdk-users] cannot allocate more than one vdev device of a type

[Dirk-Holger Lenz]

Hi Pablo,
thanks a lot, this works :-).
Regards
Dirk

On 08/03/2017 03:57 PM, De Lara Guarch, Pablo wrote:
> Hi Dirk,
>
>> -----Original Message-----
>> From: users [mailto:users-bounces@dpdk.org] On Behalf Of Dirk-Holger
>> Lenz
>> Sent: Thursday, August 3, 2017 2:46 PM
>> To: users@dpdk.org
>> Subject: [dpdk-users] cannot allocate more than one vdev device of a type
>>
>> it is not possible to allocate more than one vdev of a type
>>
>> (e.g. crypto_openssl or crypto_aesni_mb).
> You should use different suffixes when using a same crypto driver:
>
> i.e. --vdev "crypto_openssl1" --vdev "crypto_openssl2".
>
> Regards,
> Pablo