From: "Wang, Haiyue" <haiyue.wang@intel.com>
To: David Marchand <david.marchand@redhat.com>
Cc: dev <dev@dpdk.org>
Subject: Re: [dpdk-dev] [RFC v1 0/3] show the Rx/Tx burst description field
Date: Mon, 12 Aug 2019 15:39:40 +0000 [thread overview]
Message-ID: <E3B9F2FDCB65864C82CD632F23D8AB8773D5B028@shsmsx102.ccr.corp.intel.com> (raw)
In-Reply-To: <CAJFAV8zFd5jMAtocx9K-ds6khWkTbS-K1_Qi5jQf4+W1dsOLAQ@mail.gmail.com>
> -----Original Message-----
> From: David Marchand [mailto:david.marchand@redhat.com]
> Sent: Monday, August 12, 2019 22:27
> To: Wang, Haiyue <haiyue.wang@intel.com>
> Cc: dev <dev@dpdk.org>
> Subject: Re: [dpdk-dev] [RFC v1 0/3] show the Rx/Tx burst description field
>
> On Mon, Aug 12, 2019 at 4:20 PM Haiyue Wang <haiyue.wang@intel.com> wrote:
> >
> > Since some PMDs have multi-path for Rx/Tx, FD.io VPP will tell you in
> > the Debug CLI what rx/tx function is being used:
> > #show hardware-interface
> >
> > tx burst function: ice_xmit_pkts
> > rx burst function: ice_recv_scattered_pkts
> >
> > But if the tx/rx is static, then 'dladdr' will return nil:
> >
> > tx burst function: (nil) │······················
> > rx burst function: (nil) │······················
> >
> > For making things consistent and gracefull, we introduce an new string
> > field to describe the Rx/Tx burst information. This is vendor-neutral,
> > it is used to identify the Rx/Tx burst selection if the PMD has more
> > than one.
> >
> > If a PMD supports this, then rxqinfo/txqinfo->burst_info[0] != '\0'.
>
> The rx/tx handlers are the same for all queues of a ethdev port.
> What is the added value to put this in a per queue api ?
>
We will add support Receive Flex Descriptor per queue in 19.11:
drivers/net/ice/base/ice_lan_tx_rx.h --> enum ice_rxdid
Then the burst_info will be Vector (generic info) + RXDID info,
that's why we changed the design from const char * to char [].
>
> --
> David Marchand
prev parent reply other threads:[~2019-08-12 15:40 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-12 14:15 Haiyue Wang
2019-08-12 14:15 ` [dpdk-dev] [RFC v1 1/3] ethdev: add the Rx/Tx burst description field in queue information Haiyue Wang
2019-08-12 15:37 ` Stephen Hemminger
2019-08-12 14:15 ` [dpdk-dev] [RFC v1 2/3] testpmd: show the Rx/Tx burst description field in queue Haiyue Wang
2019-08-12 14:15 ` [dpdk-dev] [RFC v1 3/3] net/ice: support the Rx/Tx burst description field in queue information Haiyue Wang
2019-08-12 14:27 ` [dpdk-dev] [RFC v1 0/3] show the Rx/Tx burst description field David Marchand
2019-08-12 15:38 ` Stephen Hemminger
2019-08-12 15:42 ` Wang, Haiyue
2019-08-12 15:54 ` Stephen Hemminger
2019-08-12 16:00 ` Wang, Haiyue
2019-08-12 17:28 ` Stephen Hemminger
2019-08-12 17:36 ` Wang, Haiyue
2019-08-12 15:39 ` Wang, Haiyue [this message]
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