[dpdk-dev] [PATCH v7 1/2] i40e: RSS/FD granularity configuration

[Zhang, Helin]

> -----Original Message-----
> From: Thomas Monjalon [mailto:thomas.monjalon at 6wind.com]
> Sent: Friday, October 30, 2015 9:47 PM
> To: Zhang, Helin
> Cc: dev at dpdk.org
> Subject: Re: [dpdk-dev] [PATCH v7 1/2] i40e: RSS/FD granularity configuration
> 
> 2015-10-30 11:11, Helin Zhang:
> > v7 changes:
> > Modified RTE_ETH_INSET_SIZE_MAX from 128 to 1, to avoid ABI changes.
> 
> Why it would avoid ABI changes?
> Have you passed the ABI checker?

Hi Thomas

The only structure modified is ' struct rte_eth_hash_filter_info ', where a new
element (struct rte_eth_input_set_conf input_set_conf) was added. But I kept its
structure the same size as another one (struct rte_eth_hash_global_conf global_conf)
already in that union, they are both in 12 bytes. That means nothing changed for
' struct rte_eth_hash_filter_info'.
In addition, macro of ' RTE_ETH_INSET_SIZE_MAX ' was added by me in this patch set,
and I modified its default value from 128 to 1 in the latest version, which does not affect
ABI, as it is a totally new macro.
A new element was added at the last of ' enum rte_eth_hash_filter_info_type ', I don't
think it will affect ABI as well.

struct rte_eth_hash_filter_info {
        enum rte_eth_hash_filter_info_type info_type; /**< Information type */
        /** Details of hash filter information */
        union {
                /** For RTE_ETH_HASH_FILTER_SYM_HASH_ENA_PER_PORT */
                uint8_t enable;
                /** Global configurations of hash filter */
                struct rte_eth_hash_global_conf global_conf;
                /** Global configurations of hash filter input set */
                struct rte_eth_input_set_conf input_set_conf;
        } info;
};

I did ABI check, but it seems that something wrong in running that check on all PMDs,
like below. While all other checks are quite well.
I am not sure if anybody else can run it successfully.

preparation, please wait ...
ERROR: the input dump d1 is invalid
preparation, please wait ...
ERROR: the input dump d1 is invalid
preparation, please wait ...
ERROR: the input dump d1 is invalid
preparation, please wait ...
ERROR: the input dump d1 is invalid
preparation, please wait ...
ERROR: the input dump d1 is invalid
preparation, please wait ...
ERROR: the input dump d1 is invalid
preparation, please wait ...
ERROR: the input dump d1 is invalid
preparation, please wait ...

Regards,
Helin