[dpdk-dev] [PATCH v3] ethdev: add new offload flag to keep CRC

Ferruh Yigit ferruh.yigit at intel.com
Fri Jun 29 18:33:11 CEST 2018


On 6/29/2018 12:57 PM, Thomas Monjalon wrote:
> 29/06/2018 14:41, Ferruh Yigit:
>> DEV_RX_OFFLOAD_KEEP_CRC offload flag is added. PMDs that support
>> keeping CRC should advertise this offload capability.
>>
>> DEV_RX_OFFLOAD_CRC_STRIP flag will remain one more release
>> default behavior in PMDs are to keep the CRC until this flag removed
>>
>> Until DEV_RX_OFFLOAD_CRC_STRIP flag is removed:
>> - Setting both KEEP_CRC & CRC_STRIP is INVALID
>> - Setting only CRC_STRIP PMD should strip the CRC
>> - Setting only KEEP_CRC PMD should keep the CRC
>> - Not setting both PMD should keep the CRC
>>
>> A helper function rte_eth_dev_is_keep_crc() has been added to be able to
>> change the no flag behavior with minimal changes in PMDs.
>>
>> The PMDs that doesn't report the DEV_RX_OFFLOAD_KEEP_CRC offload can
>> remove rte_eth_dev_is_keep_crc() checks next release, related code
>> commented to help the maintenance task.
>>
>> And DEV_RX_OFFLOAD_CRC_STRIP has been added to virtual drivers since
>> they don't use CRC at all, when an application requires this offload
>> virtual PMDs should not return error.
>>
>> Signed-off-by: Ferruh Yigit <ferruh.yigit at intel.com>
>> Acked-by: Allain Legacy <allain.legacy at windriver.com>
>> Acked-by: Andrew Rybchenko <arybchenko at solarflare.com>
> 
> Acked-by: Thomas Monjalon <thomas at monjalon.net>

Applied to dpdk-next-net/master, thanks.


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