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From: Thomas Monjalon <thomas@monjalon.net>
To: "Ananyev, Konstantin" <konstantin.ananyev@intel.com>
Cc: Shahaf Shuler <shahafs@mellanox.com>, dev@dpdk.org
Subject: Re: [dpdk-dev] [PATCH 4/4] ethdev: add helpers to move to the new offloads API
Date: Mon, 04 Sep 2017 15:53:33 +0200	[thread overview]
Message-ID: <2327783.H4uO08xLcu@xps> (raw)
In-Reply-To: <2601191342CEEE43887BDE71AB9772584F24602F@irsmsx105.ger.corp.intel.com>

04/09/2017 15:25, Ananyev, Konstantin:
> Hi Shahaf,
> 
> > +/**
> > + * A conversion function from rxmode offloads API to rte_eth_rxq_conf
> > + * offloads API.
> > + */
> > +static void
> > +rte_eth_convert_rxmode_offloads(struct rte_eth_rxmode *rxmode,
> > +				struct rte_eth_rxq_conf *rxq_conf)
> > +{
> > +	if (rxmode->header_split == 1)
> > +		rxq_conf->offloads |= DEV_RX_OFFLOAD_HEADER_SPLIT;
> > +	if (rxmode->hw_ip_checksum == 1)
> > +		rxq_conf->offloads |= DEV_RX_OFFLOAD_CHECKSUM;
> > +	if (rxmode->hw_vlan_filter == 1)
> > +		rxq_conf->offloads |= DEV_RX_OFFLOAD_VLAN_FILTER;
> 
> Thinking on it a bit more:
> VLAN_FILTER is definitely one per device, as it would affect VFs also.
> At least that's what we have for Intel devices (ixgbe, i40e) right now.
> For Intel devices VLAN_STRIP is also per device and
> will also be  applied to all corresponding VFs.
> In fact, right now it is possible to query/change these 3 vlan offload flags on the fly
> (after dev_start) on  port basis by rte_eth_dev_(get|set)_vlan_offload API.
> So, I think at least these 3 flags need to be remained on a port basis.

I don't understand how it helps to be able to configure the same thing
in 2 places.
I think you are just describing a limitation of these HW: some offloads
must be the same for all queues.
It does not prevent from configuring them in the per-queue setup.

> In fact, why can't we have both per port and per queue RX offload:
> - dev_configure() will accept RX_OFFLOAD_* flags and apply them on a port basis.
> - rx_queue_setup() will also accept RX_OFFLOAD_* flags and apply them on a queue basis.
> - if particular RX_OFFLOAD flag for that device couldn't be setup on a queue basis  -
>    rx_queue_setup() will return an error.

The queue setup can work while the value is the same for every queues.

> - rte_eth_rxq_info can be extended to provide information which RX_OFFLOADs
>   can be configured on a per queue basis.

Yes the PMD should advertise its limitations like being forced to
apply the same configuration to all its queues.

> BTW - in that case we probably wouldn't need ignore flag inside rx_conf anymore.

  reply	other threads:[~2017-09-04 13:53 UTC|newest]

Thread overview: 134+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-09-04  7:12 [dpdk-dev] [PATCH 0/4] ethdev " Shahaf Shuler
2017-09-04  7:12 ` [dpdk-dev] [PATCH 1/4] ethdev: rename Rx and Tx configuration structs Shahaf Shuler
2017-09-04 12:06   ` Ananyev, Konstantin
2017-09-04 12:45     ` Shahaf Shuler
2017-09-04  7:12 ` [dpdk-dev] [PATCH 2/4] ethdev: introduce Rx queue offloads API Shahaf Shuler
2017-09-04  7:12 ` [dpdk-dev] [PATCH 3/4] ethdev: introduce Tx " Shahaf Shuler
2017-09-04  7:12 ` [dpdk-dev] [PATCH 4/4] ethdev: add helpers to move to the new " Shahaf Shuler
2017-09-04 12:13   ` Ananyev, Konstantin
2017-09-04 13:25   ` Ananyev, Konstantin
2017-09-04 13:53     ` Thomas Monjalon [this message]
2017-09-04 14:18       ` Ananyev, Konstantin
2017-09-05  7:48         ` Thomas Monjalon
2017-09-05  8:09           ` Ananyev, Konstantin
2017-09-05 10:51             ` Shahaf Shuler
2017-09-05 13:50               ` Thomas Monjalon
2017-09-05 15:31               ` Ananyev, Konstantin
2017-09-06  6:01                 ` Shahaf Shuler
2017-09-06  9:33                   ` Ananyev, Konstantin
2017-09-13  9:27                     ` Thomas Monjalon
2017-09-13 11:16                       ` Shahaf Shuler
2017-09-13 12:41                         ` Thomas Monjalon
2017-09-13 12:56                           ` Ananyev, Konstantin
2017-09-13 13:20                             ` Thomas Monjalon
2017-09-13 21:42                               ` Ananyev, Konstantin
2017-09-14  8:02                                 ` Thomas Monjalon
2017-09-18 10:31                                   ` Bruce Richardson
2017-09-18 10:57                                     ` Ananyev, Konstantin
2017-09-18 11:04                                       ` Bruce Richardson
2017-09-18 11:27                                         ` Thomas Monjalon
2017-09-18 11:04                                       ` Bruce Richardson
2017-09-18 11:11                                         ` Ananyev, Konstantin
2017-09-18 11:32                                           ` Thomas Monjalon
2017-09-18 11:37                                             ` Bruce Richardson
2017-09-18 14:27                                               ` Shahaf Shuler
2017-09-18 14:42                                                 ` Thomas Monjalon
2017-09-18 14:44                                                 ` Bruce Richardson
2017-09-18 18:18                                                   ` Shahaf Shuler
2017-09-18 21:08                                                     ` Thomas Monjalon
2017-09-19  7:33                                                       ` Shahaf Shuler
2017-09-19  7:56                                                         ` Thomas Monjalon
2017-09-13 12:56                           ` Shahaf Shuler
2017-09-04 14:02     ` Shahaf Shuler
2017-09-04 15:55       ` Ananyev, Konstantin
2017-09-10 12:07 ` [dpdk-dev] [PATCH v2 0/2] ethdev " Shahaf Shuler
2017-09-10 12:07   ` [dpdk-dev] [PATCH v2 1/2] ethdev: introduce Rx queue " Shahaf Shuler
2017-09-10 12:07   ` [dpdk-dev] [PATCH v2 2/2] ethdev: introduce Tx " Shahaf Shuler
2017-09-10 17:48     ` Stephen Hemminger
2017-09-11  5:52       ` Shahaf Shuler
2017-09-11  6:21         ` Jerin Jacob
2017-09-11  7:56           ` Shahaf Shuler
2017-09-11  8:06             ` Jerin Jacob
2017-09-11  8:46               ` Shahaf Shuler
2017-09-11  9:05                 ` Jerin Jacob
2017-09-11 11:02                   ` Ananyev, Konstantin
2017-09-12  4:01                     ` Jerin Jacob
2017-09-12  5:25                       ` Shahaf Shuler
2017-09-12  5:51                         ` Jerin Jacob
2017-09-12  6:35                           ` Shahaf Shuler
2017-09-12  6:46                             ` Andrew Rybchenko
2017-09-12  7:17                             ` Jerin Jacob
2017-09-12  8:03                               ` Shahaf Shuler
2017-09-12 10:27                                 ` Andrew Rybchenko
2017-09-12 14:26                                   ` Ananyev, Konstantin
2017-09-12 14:36                                     ` Jerin Jacob
2017-09-12 14:43                                       ` Andrew Rybchenko
2017-09-12  6:43                           ` Andrew Rybchenko
2017-09-12  6:59                             ` Shahaf Shuler
2017-09-11  8:03     ` Andrew Rybchenko
2017-09-11 12:27       ` Shahaf Shuler
2017-09-11 13:10         ` Andrew Rybchenko
2017-09-13  6:37   ` [dpdk-dev] [PATCH v3 0/2] ethdev new " Shahaf Shuler
2017-09-13  6:37     ` [dpdk-dev] [PATCH v3 1/2] ethdev: introduce Rx queue " Shahaf Shuler
2017-09-13  8:13       ` Andrew Rybchenko
2017-09-13 12:49         ` Shahaf Shuler
2017-09-13  8:49       ` Andrew Rybchenko
2017-09-13  9:13         ` Andrew Rybchenko
2017-09-13 12:33           ` Shahaf Shuler
2017-09-13 12:34             ` Andrew Rybchenko
2017-09-13  6:37     ` [dpdk-dev] [PATCH v3 2/2] ethdev: introduce Tx " Shahaf Shuler
2017-09-13  8:40       ` Andrew Rybchenko
2017-09-13 12:51         ` Shahaf Shuler
2017-09-13  9:10     ` [dpdk-dev] [PATCH v3 0/2] ethdev new " Andrew Rybchenko
2017-09-17  6:54     ` [dpdk-dev] [PATCH v4 0/3] " Shahaf Shuler
2017-09-17  6:54       ` [dpdk-dev] [PATCH v4 1/3] ethdev: introduce Rx queue " Shahaf Shuler
2017-09-17  6:54       ` [dpdk-dev] [PATCH v4 2/3] ethdev: introduce Tx " Shahaf Shuler
2017-09-18  7:50         ` Andrew Rybchenko
2017-09-17  6:54       ` [dpdk-dev] [PATCH v4 3/3] doc: add details on ethdev " Shahaf Shuler
2017-09-18  7:51         ` Andrew Rybchenko
2017-09-18 13:40         ` Mcnamara, John
2017-09-18  7:51       ` [dpdk-dev] [PATCH v4 0/3] ethdev new " Andrew Rybchenko
2017-09-28 18:54       ` [dpdk-dev] [PATCH v5 " Shahaf Shuler
2017-09-28 18:54         ` [dpdk-dev] [PATCH v5 1/3] ethdev: introduce Rx queue " Shahaf Shuler
2017-10-03  0:32           ` Ferruh Yigit
2017-10-03  6:25             ` Shahaf Shuler
2017-10-03 19:46               ` Ferruh Yigit
2017-09-28 18:54         ` [dpdk-dev] [PATCH v5 2/3] ethdev: introduce Tx " Shahaf Shuler
2017-10-03 19:50           ` Ferruh Yigit
2017-10-04  8:06             ` Shahaf Shuler
2017-09-28 18:54         ` [dpdk-dev] [PATCH v5 3/3] doc: add details on ethdev " Shahaf Shuler
2017-10-04  8:17         ` [dpdk-dev] [PATCH v6 0/4] ethdev new " Shahaf Shuler
2017-10-04  8:17           ` [dpdk-dev] [PATCH v6 1/4] ethdev: introduce Rx queue " Shahaf Shuler
2017-10-04  8:17           ` [dpdk-dev] [PATCH v6 2/4] ethdev: introduce Tx " Shahaf Shuler
2017-10-04  8:18           ` [dpdk-dev] [PATCH v6 3/4] ethdev: add mbuf fast free Tx offload Shahaf Shuler
2017-10-04  8:18           ` [dpdk-dev] [PATCH v6 4/4] doc: add details on ethdev offloads API Shahaf Shuler
2017-10-04 13:46             ` Mcnamara, John
2018-03-15  1:58             ` Patil, Harish
2018-03-15  6:05               ` Shahaf Shuler
2018-03-16 15:51             ` [dpdk-dev] [PATCH] doc: update new ethdev offload API description Ferruh Yigit
2018-03-17  0:16               ` Patil, Harish
2018-03-18  5:52               ` Shahaf Shuler
2018-03-21  9:47               ` Andrew Rybchenko
2018-03-21 10:54                 ` Ferruh Yigit
2018-03-21 11:08                   ` Andrew Rybchenko
2018-03-21 11:10                     ` Shahaf Shuler
2018-03-21 11:19                       ` Andrew Rybchenko
2018-03-21 11:23                         ` Shahaf Shuler
2018-03-21 11:37                           ` Andrew Rybchenko
2018-03-21 11:40                             ` Shahaf Shuler
2018-03-21 12:52                               ` Ferruh Yigit
2018-03-21 13:06                                 ` Shahaf Shuler
2018-03-21 13:11                                   ` Ananyev, Konstantin
2018-03-21 12:03                             ` Ananyev, Konstantin
2018-03-21 12:29                               ` Shahaf Shuler
2018-03-21 12:34                               ` Andrew Rybchenko
2018-03-21 12:37                                 ` Ananyev, Konstantin
2018-03-21 14:08                   ` Thomas Monjalon
2018-03-21 14:28                     ` Ferruh Yigit
2018-03-21 14:40                       ` Thomas Monjalon
2018-03-21 15:26                         ` Bruce Richardson
2018-03-21 15:29                           ` Shahaf Shuler
2018-03-21 15:44                             ` Bruce Richardson
2018-05-08 12:33               ` Ferruh Yigit
2017-10-04 16:12           ` [dpdk-dev] [PATCH v6 0/4] ethdev new offloads API Ananyev, Konstantin
2017-10-05  0:55             ` Ferruh Yigit

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