[dpdk-dev] [PATCH v3 1/2] net/i40e: queue region set and flush

Zhao1, Wei wei.zhao1 at intel.com
Thu Sep 21 09:26:36 CEST 2017



> -----Original Message-----
> From: Yigit, Ferruh
> Sent: Thursday, September 21, 2017 3:10 PM
> To: Zhao1, Wei <wei.zhao1 at intel.com>; dev at dpdk.org
> Subject: Re: [dpdk-dev] [PATCH v3 1/2] net/i40e: queue region set and flush
> 
> On 9/21/2017 7:48 AM, Zhao1, Wei wrote:
> > Hi,  Ferruh
> >
> >> -----Original Message-----
> >> From: Yigit, Ferruh
> >> Sent: Wednesday, September 20, 2017 6:36 PM
> >> To: Zhao1, Wei <wei.zhao1 at intel.com>; dev at dpdk.org
> >> Subject: Re: [dpdk-dev] [PATCH v3 1/2] net/i40e: queue region set and
> >> flush
> >>
> >> On 9/15/2017 4:13 AM, Wei Zhao wrote:
> >>> This feature enable queue regions configuration for RSS in PF/VF, so
> >>> that different traffic classes or different packet classification
> >>> types can be separated to different queues in different queue
> >>> regions.This patch can set queue region range, it include queue
> >>> number in a region and the index of first queue.
> >>
> >> Is following correct:
> >> So instead of distributing packets to the multiple queues, this will
> >> distribute packets into queue reqions which may consists of multiple
> queues.
> >>
> >> If so, is there a way to control how packets distributed within same
> >> queue region to multiple queues?
> >>
> >> And is this feature only supported with RSS? Can it be part of RSS
> >> configuration instead of PMD specific API?
> >>
> >>> This patch enable mapping between different priorities (UP) and
> >>
> >> User priorities (UP)
> >>
> >>> different traffic classes.It also enable mapping between a region
> >>> index and a sepcific flowtype(PCTYPE).It also provide the solution
> >>> of flush all configuration about queue region the above described.
> >>>
> >>> Signed-off-by: Wei Zhao <wei.zhao1 at intel.com>
> 
> <...>
> 
> >>> +	ret = i40e_aq_update_vsi_params(hw, &ctxt, NULL);
> >>> +	if (ret) {
> >>> +		PMD_INIT_LOG(ERR, "Failed to configure queue region "
> >>> +			"mapping = %d ", hw->aq.asq_last_status);
> >>
> >> Please don't split log message.
> >
> > If I do not spli it , the line will has more 80 character, there will be warning in
> patch check log!
> > So, which way do you think will be better? Split or warning log?
> 
> Checkpatch detects log lines and shouldn't complain about them.
> 
> Even it does I thinks checkpatch warning is better, assuming reasonable
> length.
> 
> And you can do as following to reduce the line length:
> 
> PMD_INIT_LOG(ERR,
> 	"Failed to configure queue region mapping = %d ",
> 	hw->aq.asq_last_status);
> 
> <...>

Ok, I will change to that way, but there will be warning in patch check.
Because at first I do not split them, then after patch check, I find that I must eliminate these over 80 warning.




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