[dpdk-dev] [PATCH v7] ethdev: check Rx/Tx offloads

[Ferruh Yigit]

On 5/4/2018 3:42 PM, Ferruh Yigit wrote:
> On 5/4/2018 3:02 PM, Wei Dai wrote:
>> This patch check if a input requested offloading is valid or not.
>> Any reuqested offloading must be supported in the device capabilities.
>> Any offloading is disabled by default if it is not set in the parameter
>> dev_conf->[rt]xmode.offloads to rte_eth_dev_configure( ) and
>> [rt]x_conf->offloads to rte_eth_[rt]x_queue_setup( ).
>> From application, a pure per-port offloading can't be enabled on
>> any queue if it hasn't been enabled in rte_eth_dev_configure( ).
>> If any offloading is enabled in rte_eth_dev_configure( ) by application,
>> it is enabled on all queues no matter whether it is per-queue or
>> per-port type and no matter whether it is set or cleared in
>> [rt]x_conf->offloads to rte_eth_[rt]x_queue_setup( ).
>> The underlying PMD must be aware that the requested offloadings
>> to PMD specific queue_setup( ) function only carries those
>> offloadings only enabled for the queue but not enabled in
>> rte_eth_dev_configure( ) and they are certain per-queue type.
>>
>> This patch can make above such checking in a common way in rte_ethdev
>> layer to avoid same checking in underlying PMD.
>>
>> Signed-off-by: Wei Dai <wei.dai at intel.com>
>> Signed-off-by: Ferruh Yigit <ferruh.yigit at intel.com>
> 
> Acked-by: Ferruh Yigit <ferruh.yigit at intel.com>
> 
> 
> As mentioned in prev version, getting only this patch breaks the applications
> because of existing checks in the PMDs.
> 
> Hi Wei,
> 
> If you have bandwidth, can you update PMDs to remove their existing offload
> checks in this patch?
> 
> 
> PMDs needs to be updated for:
> 1- Remove existing offload verify checks
> 2- Update offload configure logic based on new values
> 
> (1) can be part of this patch. But PMD maintainers should send update for (2) if
> a change required.

cc'ed Shahaf, specially for (2) one.