[dpdk-dev] [PATCH] ethdev: fix ABI breakage in lro code

[Chao Zhu]

Confirmed. It can compile on Power8 Big Endian.
Thank you!

On 2015/8/3 10:39, Chao Zhu wrote:
>
> Really sorry for the delay.
> Originally, I thought the email was to asking the ABI checking tools 
> on Power which I'm not so familiar with.  So this took me some time to 
> find solution. For Power little endian, the build is OK. I'll give 
> feedback when I tried Big  endian compilation.
>
> On 2015/7/31 18:34, Neil Horman wrote:
>> On Fri, Jul 31, 2015 at 09:03:45AM +0000, Mcnamara, John wrote:
>>>> -----Original Message-----
>>>> From: Neil Horman [mailto:nhorman at tuxdriver.com]
>>>> Sent: Monday, July 13, 2015 3:00 PM
>>>> To: Mcnamara, John
>>>> Cc: dev at dpdk.org; vladz at cloudius-systems.com
>>>> Subject: Re: [dpdk-dev] [PATCH] ethdev: fix ABI breakage in lro code
>>>>
>>>> On Mon, Jul 13, 2015 at 10:47:03AM +0000, Mcnamara, John wrote:
>>>>>> -----Original Message-----
>>>>>> From: Neil Horman [mailto:nhorman at tuxdriver.com]
>>>>>> Sent: Monday, July 13, 2015 11:42 AM
>>>>>> To: Mcnamara, John
>>>>>> Cc: dev at dpdk.org; vladz at cloudius-systems.com
>>>>>> Subject: Re: [dpdk-dev] [PATCH] ethdev: fix ABI breakage in lro code
>>>>>>
>>>>>> On Mon, Jul 13, 2015 at 11:26:25AM +0100, John McNamara wrote:
>>>>>>> Fix for ABI breakage introduced in LRO addition. Moves lro
>>>>>>> bitfield to the end of the struct/member.
>>>>>>>
>>>>>>> Fixes: 8eecb3295aed (ixgbe: add LRO support)
>>>>>>>
>>>>>>> Signed-off-by: John McNamara <john.mcnamara at intel.com>
>>>>>>> ---
>>>>>>>   lib/librte_ether/rte_ethdev.h | 4 ++--
>>>>>>>   1 file changed, 2 insertions(+), 2 deletions(-)
>>>>>>>
>>>>>>> diff --git a/lib/librte_ether/rte_ethdev.h
>>>>>>> b/lib/librte_ether/rte_ethdev.h index 79bde89..1c3ace1 100644
>>>>>>> --- a/lib/librte_ether/rte_ethdev.h
>>>>>>> +++ b/lib/librte_ether/rte_ethdev.h
>>>>>>> @@ -1578,9 +1578,9 @@ struct rte_eth_dev_data {
>>>>>>>       uint8_t port_id;           /**< Device [external] port
>>>> identifier.
>>>>>> */
>>>>>>>       uint8_t promiscuous   : 1, /**< RX promiscuous mode ON(1) /
>>>> OFF(0).
>>>>>> */
>>>>>>>           scattered_rx : 1, /**< RX of scattered packets is ON(1)
>>>> /
>>>>>> OFF(0) */
>>>>>>> -        lro          : 1, /**< RX LRO is ON(1) / OFF(0) */
>>>>>>>           all_multicast : 1, /**< RX all multicast mode ON(1) /
>>>> OFF(0).
>>>>>> */
>>>>>>> -        dev_started : 1; /**< Device state: STARTED(1) /
>>>> STOPPED(0).
>>>>>> */
>>>>>>> +        dev_started : 1, /**< Device state: STARTED(1) /
>>>> STOPPED(0).
>>>>>> */
>>>>>>> +        lro         : 1; /**< RX LRO is ON(1) / OFF(0) */
>>>>>>>   };
>>>>>>>
>>>>>>>   /**
>>>>>>> -- 
>>>>>>> 1.8.1.4
>>>>>>>
>>>>>>>
>>>>>> I presume the ABI checker stopped complaining about this with the
>>>>>> patch, yes?
>>>>> Hi Neil,
>>>>>
>>>>> Yes, I replied about that in the previous thread.
>>>>>
>>>> Thank you, I'll ack as soon as Chao confirms its not a problem on 
>>>> ppc Neil
>>> Hi Chao,
>>>
>>> Any reply on this.
>>>
>>> Neil, if there is no reply to this from the PPC maintainer do you 
>>> have any objection to this going in as is.
>>>
>>> It at least fixes the LRO ABI breakage on the platforms we can test on.
>>>
>>> John
>>>
>> Well, I suppose at this point the only thing its hurting is ppc, so 
>> no, no
>> objections.  But its pretty disheartening for an arch maintainer to 
>> dissappear
>> so soon after adding arch support.
>>
>> Neil
>>
>