[dpdk-dev] [PATCH 2/2] Move non-PCI related eth_dev initialization to rte_eth_dev_allocate()

[Jan Blunck]

On Thu, Nov 17, 2016 at 4:46 PM, Ferruh Yigit <ferruh.yigit at intel.com> wrote:
> On 11/17/2016 2:24 PM, Jan Blunck wrote:
>> This moves the non-PCI related initialization of the link state interrupt
>> callback list and the setting of the default MTU to rte_eth_dev_allocate()
>> so that drivers only need to set non-default values.
>>
>> Signed-off-by: Jan Blunck <jblunck at infradead.org>
>> ---
>>  drivers/net/bonding/rte_eth_bond_api.c |  2 --
>>  drivers/net/cxgbe/cxgbe_main.c         |  2 --
>>  drivers/net/mlx4/mlx4.c                |  2 --
>>  drivers/net/mlx5/mlx5.c                |  3 ---
>>  drivers/net/null/rte_eth_null.c        |  2 --
>>  drivers/net/ring/rte_eth_ring.c        |  2 --
>>  drivers/net/vhost/rte_eth_vhost.c      |  2 --
>>  lib/librte_ether/rte_ethdev.c          | 12 ++++--------
>>  8 files changed, 4 insertions(+), 23 deletions(-)
>
> I think following also redundant and can be removed:
> app/test/virtual_pmd.c:
> 604:    TAILQ_INIT(&(eth_dev->link_intr_cbs));
>
> <...>
>
>> diff --git a/lib/librte_ether/rte_ethdev.c b/lib/librte_ether/rte_ethdev.c
>> index 12af4b1..f58a995 100644
>> --- a/lib/librte_ether/rte_ethdev.c
>> +++ b/lib/librte_ether/rte_ethdev.c
>
> What do you think doing same thing for rte_cryptodev.c J
>

Thanks for the review Ferruh. I'll fixup the patches and resend. I'm
currently looking in the rte_bus and rte_eth_dev stuff. If nobody
volunteers to do the changes for cryptodev I can take a look at some
later point.

Thanks,
Jan

>> @@ -215,6 +215,10 @@ rte_eth_dev_allocate(const char *name)
>>       memset(eth_dev->data, 0, sizeof(*eth_dev->data));
>>       snprintf(eth_dev->data->name, sizeof(eth_dev->data->name), "%s", name);
>>       eth_dev->data->port_id = port_id;
>> +     eth_dev->data->rx_mbuf_alloc_failed = 0;
>
> This is no more required, because of memset
>
>> +     eth_dev->data->mtu = ETHER_MTU;
>> +     TAILQ_INIT(&(eth_dev->link_intr_cbs));
>> +
>>       eth_dev->attached = DEV_ATTACHED;
>>       eth_dev_last_created_port = port_id;
>>       nb_ports++;
>> @@ -261,14 +265,6 @@ rte_eth_dev_pci_probe(struct rte_pci_driver *pci_drv,
>>       eth_dev->pci_dev = pci_dev;
>>       eth_dev->driver = eth_drv;
>>
>> -     /* init user callbacks */
>> -     TAILQ_INIT(&(eth_dev->link_intr_cbs));
>> -
>> -     /*
>> -      * Set the default MTU.
>> -      */
>> -     eth_dev->data->mtu = ETHER_MTU;
>> -
>>       /* Invoke PMD device initialization function */
>>       diag = (*eth_drv->eth_dev_init)(eth_dev);
>>       if (diag == 0)
>>
>