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

[Ferruh Yigit]

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.