[dpdk-dev] [EXT] Re: [PATCH] net/bnx2x: add support for secondary process

[Ferruh Yigit]

On 1/15/2020 10:58 AM, Kevin Traynor wrote:
> On 14/01/2020 19:51, Rasesh Mody wrote:
>> Hi Kevin,
>>
>>> From: Kevin Traynor <ktraynor at redhat.com>
>>> Sent: Tuesday, January 14, 2020 10:52 AM
>>>
>>> On 14/01/2020 04:51, Jerin Jacob wrote:
>>>> On Sat, Dec 21, 2019 at 7:12 AM Rasesh Mody <rmody at marvell.com>
>>> wrote:
>>>>>
>>>>> Skip the device re-initialization for secondary process.
>>>>>
>>>>> Cc: stable at dpdk.com
>>>>
>>>> Correct Cc: to stable at dpdk.org
>>>>
>>>
>>> Is it a fix, or secondary process was not intended to be supported previously?
>>> If it is a fix, please provide the Fixed commit (will save Ferruh searching for it).
>>
>> Secondary process was not intended to be supported previously. So it is ok to not backport the change to all ongoing stable releases.
> 
> Thanks for confirming.
> 
>> However, the change has been tested with DPDK 19.11, I am wondering if it can be pulled in that stable tree.
> 
> Cc Luca
> 
>> Please see below the fixline tag.
>>
>> Fixes: 540a211084a7 ("bnx2x: driver core")
>>
> 
> Fixes tag won't be needed now as you've confirmed the code was doing
> what it was intending to do.

Since there is a request to backport this into 19.11, I was planning to add the
fixes tag (stable tag is already there) but will it confuse the 18.11 because
the commit in fixes line is older than 18.11?

> 
>> Thanks!
>> -Rasesh
>>>
>>>> Applied to dpdk-next-net-mrvl/master. Thanks
>>>>
>>>>
>>>>> Signed-off-by: Rasesh Mody <rmody at marvell.com>
>>>>
>>>>> ---
>>>>>  drivers/net/bnx2x/bnx2x_ethdev.c | 5 +++++
>>>>>  1 file changed, 5 insertions(+)
>>>>>
>>>>> diff --git a/drivers/net/bnx2x/bnx2x_ethdev.c
>>>>> b/drivers/net/bnx2x/bnx2x_ethdev.c
>>>>> index 20b045ff87..7864b5b80a 100644
>>>>> --- a/drivers/net/bnx2x/bnx2x_ethdev.c
>>>>> +++ b/drivers/net/bnx2x/bnx2x_ethdev.c
>>>>> @@ -598,6 +598,11 @@ bnx2x_common_dev_init(struct rte_eth_dev
>>>>> *eth_dev, int is_vf)
>>>>>
>>>>>         eth_dev->dev_ops = is_vf ? &bnx2xvf_eth_dev_ops :
>>>>> &bnx2x_eth_dev_ops;
>>>>>
>>>>> +       if (rte_eal_process_type() != RTE_PROC_PRIMARY) {
>>>>> +               PMD_DRV_LOG(ERR, sc, "Skipping device init from secondary
>>> process");
>>>>> +               return 0;
>>>>> +       }
>>>>> +
>>>>>         rte_eth_copy_pci_info(eth_dev, pci_dev);
>>>>>
>>>>>         sc->pcie_bus    = pci_dev->addr.bus;
>>>>> --
>>>>> 2.18.0
>>>>>
>>>>
>>
>>
>