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From: Thomas Monjalon <thomas@monjalon.net>
To: Ferruh Yigit <ferruh.yigit@intel.com>
Cc: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>,
	dev@dpdk.org, dev@dpdk.org,
	"Min Hu (Connor)" <humin29@huawei.com>,
	"Wei Hu (Xavier" <xavier.huwei@huawei.com>
Subject: Re: [dpdk-dev] [RFC v2 1/2] ethdev: provide device flag to bypass ethdev queue xstats
Date: Fri, 16 Oct 2020 16:32:42 +0200
Message-ID: <5239286.r6oyNDfoyL@thomas> (raw)
In-Reply-To: <0d8f6cf8-66e0-8754-f700-aa7dfbff9aba@intel.com>

16/10/2020 14:16, Ferruh Yigit:
> On 10/14/2020 3:26 AM, Ferruh Yigit wrote:
> > Queue stats are stored in 'struct rte_eth_stats' as array and array size
> > is defined by 'RTE_ETHDEV_QUEUE_STAT_CNTRS' compile time flag.
> > 
> > As a result of technical board discussion, decided to remove the queue
> > statistics from 'struct rte_eth_stats' in the long term.
> > 
> > Instead PMDs should represent the queue statistics via xstats, this
> > gives more flexibility on the number of the queues supported.
> > 
> > Currently queue stats in the xstats are filled by ethdev layer, using
> > some basic stats, when queue stats removed from basic stats the
> > responsibility to fill the relevant xstats will be pushed to the PMDs.
> > 
> > During the switch period, temporary 'RTE_ETH_DEV_AUTOFILL_QUEUE_XSTATS'
> > device flag is created. Initially all PMDs using xstats set this flag.
> > The PMDs implemented queue stats in the xstats should clear the flag.
> > 
> > When all PMDs switch to the xstats for the queue stats, queue stats
> > related fields from 'struct rte_eth_stats' will be removed, as well as
> > 'RTE_ETH_DEV_AUTOFILL_QUEUE_XSTATS' flag.
> > Later 'RTE_ETHDEV_QUEUE_STAT_CNTRS' compile time flag also can be
> > removed.
> > 
> > Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
> 
> Hi Thomas, Andrew,
> 
> What do you think having the patch for this release?

Acked-by: Thomas Monjalon <thomas@monjalon.net>



  reply index

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-12 16:46 [dpdk-dev] [RFC 1/2] ethdev: move queue stats to xstats Ferruh Yigit
2020-10-12 16:46 ` [dpdk-dev] [RFC 2/2] doc: announce queue stats moving " Ferruh Yigit
2020-10-12 16:55   ` [dpdk-dev] [dpdk-techboard] " Stephen Hemminger
2020-10-12 21:53 ` [dpdk-dev] [RFC 1/2] ethdev: move queue stats " Thomas Monjalon
2020-10-13  8:31   ` Andrew Rybchenko
2020-10-13  9:05     ` Thomas Monjalon
2020-10-13  9:16       ` Andrew Rybchenko
2020-10-13 22:41         ` Ferruh Yigit
2020-10-13 15:04       ` Stephen Hemminger
2020-10-13 22:53   ` Ferruh Yigit
2020-10-14  2:26 ` [dpdk-dev] [RFC v2 1/2] ethdev: provide device flag to bypass ethdev queue xstats Ferruh Yigit
2020-10-14  2:26   ` [dpdk-dev] [RFC v2 2/2] doc: announce queue stats moving to xstats Ferruh Yigit
2020-10-14  8:43     ` Kinsella, Ray
2020-10-16 14:34       ` Thomas Monjalon
2020-10-16 14:36         ` Bruce Richardson
2020-10-16 14:37         ` Jerin Jacob
2020-10-16 15:07         ` Stephen Hemminger
2020-10-16 17:48           ` Ajit Khaparde
2020-10-14  9:35     ` Igor Ryzhov
2020-10-14  9:45       ` Thomas Monjalon
2020-10-15  7:55         ` Igor Ryzhov
2020-10-15  8:03           ` Thomas Monjalon
2020-10-15 17:39             ` Igor Ryzhov
2020-10-15 17:45               ` Thomas Monjalon
2020-10-14  8:40   ` [dpdk-dev] [RFC v2 1/2] ethdev: provide device flag to bypass ethdev queue xstats Wang, Haiyue
2020-10-14  8:46   ` Wang, Xiao W
2020-10-16 12:16   ` Ferruh Yigit
2020-10-16 14:32     ` Thomas Monjalon [this message]
2020-10-16 21:38       ` Ferruh Yigit
2020-10-19  3:03     ` Min Hu (Connor)
2020-10-18 12:09   ` Xu, Rosen

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