[dpdk-dev] [PATCH v4 1/2] ethdev: add new ext hdr for gtp psc

[Andrew Rybchenko]

On 4/29/21 7:29 PM, Tyler Retzlaff wrote:
> On Thu, Apr 08, 2021 at 02:29:56PM +0200, Olivier Matz wrote:
>> Hi Raslan,
>>
>>> +/**
>>> + * Optional extension for GTP with next_ext set to 0x85
>>> + * defined based on RFC 38415-g30.
>>> + */
>>> +__extension__
>>> +struct rte_gtp_psc_hdr {
>>> +	uint8_t ext_hdr_len; /**< PDU ext hdr len in multiples of 4 bytes */
>>> +	uint8_t type:4; /**< PDU type */
>>> +	uint8_t qmp:1; /**< Qos Monitoring Packet */
> 
> would it be a lot ot ask to have the structure defined using standard C
> instead of using compiler specific extensions?
> 

It is a valid request, but I'm afraid bit fields are used
in many-many core DPDK libraries. So, change of the approach
or at least direction for a new code should be discussed and
approved by techboard.