Re: [dpdk-dev] [PATCH v1] net/axgbe: add support for Scattered Rx

["Sebastian, Selwin" <Selwin.Sebastian@amd.com>]

Thanks and Regards
Selwin Sebastian
 
 

-----Original Message-----
From: Ferruh Yigit <ferruh.yigit@intel.com> 
Sent: Thursday, February 27, 2020 8:08 PM
To: Sebastian, Selwin <Selwin.Sebastian@amd.com>; dev@dpdk.org
Subject: Re: [dpdk-dev] [PATCH v1] net/axgbe: add support for Scattered Rx

[CAUTION: External Email]

On 2/27/2020 2:35 PM, Sebastian, Selwin wrote:
> [AMD Official Use Only - Internal Distribution Only]
>
> Hi Ferruh,
>       For validation of scatter using the testpmd method  mentioned in dpdk docs, we need to have these Tx offloads also enabled.

[Please don't top post, it makes conversation hard to follow.]

Can you point where there testpmd requirement in the code?
	https://doc.dpdk.org/dts/test_plans/scatter_test_plan.html talks about DEV_TX_OFFLOAD_MULTI_SEGS as a prerequisites for scatter . When I add DEV_TX_OFFLOAD_MULTI_SEGS for tx capability ,   I was forced to add " DEV_TX_OFFLOAD_OUTER_IPV4_CKSUM , DEV_TX_OFFLOAD_UDP_TSO , DEV_TX_OFFLOAD_SCTP_CKSUM" for the mentioned testpmd to run. 

Also these offloads should be enabled when HW/Driver supports it, not for it is required by testpmd.

	I am able to test scatter without adding "DEV_TX_OFFLOAD_MULTI_SEGS" tx capability. Shall I submit version2 of the patch after removing " DEV_TX_OFFLOAD_MULTI_SEGS, DEV_TX_OFFLOAD_OUTER_IPV4_CKSUM , DEV_TX_OFFLOAD_UDP_TSO, DEV_TX_OFFLOAD_SCTP_CKSUM" capabilities. ?

>
> Thanks and Regards
> Selwin Sebastian
>
> -----Original Message-----
> From: Ferruh Yigit <ferruh.yigit@intel.com>
> Sent: Thursday, February 27, 2020 7:59 PM
> To: Sebastian, Selwin <Selwin.Sebastian@amd.com>; dev@dpdk.org
> Subject: Re: [dpdk-dev] [PATCH v1] net/axgbe: add support for 
> Scattered Rx
>
> [CAUTION: External Email]
>
> On 2/27/2020 6:33 AM, ssebasti@amd.com wrote:
>> From: Selwin Sebastian <selwin.sebastian@amd.com>
>>
>> Enable scattered rx support and add jumbo packet transmit capability
>>
>> Signed-off-by: Selwin Sebastian <selwin.sebastian@amd.com>
>
> <...>
>
>> @@ -789,11 +789,17 @@ axgbe_dev_info_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
>>               DEV_RX_OFFLOAD_IPV4_CKSUM |
>>               DEV_RX_OFFLOAD_UDP_CKSUM  |
>>               DEV_RX_OFFLOAD_TCP_CKSUM  |
>> +             DEV_RX_OFFLOAD_JUMBO_FRAME      |
>> +             DEV_RX_OFFLOAD_SCATTER    |
>>               DEV_RX_OFFLOAD_KEEP_CRC;
>>
>>       dev_info->tx_offload_capa =
>>               DEV_TX_OFFLOAD_IPV4_CKSUM  |
>>               DEV_TX_OFFLOAD_UDP_CKSUM   |
>> +             DEV_TX_OFFLOAD_OUTER_IPV4_CKSUM |
>> +             DEV_TX_OFFLOAD_UDP_TSO          |
>> +             DEV_TX_OFFLOAD_SCTP_CKSUM       |
>> +             DEV_TX_OFFLOAD_MULTI_SEGS       |
>>               DEV_TX_OFFLOAD_TCP_CKSUM;
>
> Is the Tx offload capability update related to the this change? If it is not can you please send these updates as a separate patch, and a send new version of this patch without this bit?
>
> Thanks,
> ferruh
>