From: "Eads, Gage" <gage.eads@intel.com>
To: "Yigit, Ferruh" <ferruh.yigit@intel.com>, "dev@dpdk.org" <dev@dpdk.org>
Subject: Re: [dpdk-dev] [PATCH] net/pcap: set queue started and stopped
Date: Wed, 18 Jul 2018 14:17:02 +0000 [thread overview]
Message-ID: <9184057F7FC11744A2107296B6B8EB1E446EDBE7@FMSMSX108.amr.corp.intel.com> (raw)
In-Reply-To: <67809c9d-9125-5077-6a6b-44b025fad49b@intel.com>
> -----Original Message-----
> From: Yigit, Ferruh
> Sent: Wednesday, July 18, 2018 4:14 AM
> To: Eads, Gage <gage.eads@intel.com>; dev@dpdk.org
> Subject: Re: [PATCH] net/pcap: set queue started and stopped
>
> On 7/9/2018 9:21 PM, Gage Eads wrote:
> > Set the rx and tx queue state appropriately when the queues or device
> > are started or stopped.
>
> Is there a specific reason to enable these dev_ops, if so can you please
> document in commit log?
Yes, the purpose of the patch is to enable the rte_eth_dev_{rx, tx}_queue_{start, stop} functions for the PCAP PMD. I'll update the message in v2.
>
> >
> > Signed-off-by: Gage Eads <gage.eads@intel.com>
> > ---
> > drivers/net/pcap/rte_eth_pcap.c | 42
> > +++++++++++++++++++++++++++++++++++++++++
> > 1 file changed, 42 insertions(+)
> >
> > diff --git a/drivers/net/pcap/rte_eth_pcap.c
> > b/drivers/net/pcap/rte_eth_pcap.c index 6bd4a7d79..21e466bcd 100644
> > --- a/drivers/net/pcap/rte_eth_pcap.c
> > +++ b/drivers/net/pcap/rte_eth_pcap.c
> > @@ -430,6 +430,10 @@ eth_dev_start(struct rte_eth_dev *dev)
> > return -1;
> > rx->pcap = tx->pcap;
> > }
> > +
> > + dev->data->tx_queue_state[0] =
> RTE_ETH_QUEUE_STATE_STARTED;
> > + dev->data->rx_queue_state[0] =
> RTE_ETH_QUEUE_STATE_STARTED;
>
> pcap also supports multiple queue, instead of hardcoding the queue 0 it can be
> possible to iterate through dev->data->nb_rx_queues, dev->data-
> >nb_tx_queues.
>
> And I think it is not good to set this in "internals->single_iface" condition, it is
> better to do these assignments just above "status_up" after all queues
> initialized.
>
> > +
> > goto status_up;
> > }
> >
> > @@ -490,6 +494,8 @@ eth_dev_stop(struct rte_eth_dev *dev)
> > pcap_close(tx->pcap);
> > tx->pcap = NULL;
> > rx->pcap = NULL;
> > + dev->data->tx_queue_state[0] =
> RTE_ETH_QUEUE_STATE_STOPPED;
> > + dev->data->rx_queue_state[0] =
> RTE_ETH_QUEUE_STATE_STOPPED;
>
> same here, just above "status_down" is better place and by using
> dev->data->nb_[r/t]x_queues
Agreed, I will move the started and stopped assignments as you suggested.
next prev parent reply other threads:[~2018-07-18 14:17 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-07-09 20:21 Gage Eads
2018-07-18 9:13 ` Ferruh Yigit
2018-07-18 14:17 ` Eads, Gage [this message]
2018-07-18 14:25 ` Ferruh Yigit
2018-07-18 16:04 ` Eads, Gage
2018-07-18 16:06 ` Ferruh Yigit
2018-07-18 16:30 ` [dpdk-dev] [PATCH v2] " Gage Eads
2018-07-19 9:32 ` Ferruh Yigit
2018-07-19 9:56 ` Ferruh Yigit
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