From: "Wu, Jingjing" <jingjing.wu@intel.com>
To: "Lu, Wenzhuo" <wenzhuo.lu@intel.com>, "dev@dpdk.org" <dev@dpdk.org>
Cc: "Lu, Wenzhuo" <wenzhuo.lu@intel.com>
Subject: Re: [dpdk-dev] [PATCH 4/8] net/i40e: set TC strict priority mode
Date: Fri, 24 Mar 2017 05:19:50 +0000 [thread overview]
Message-ID: <9BB6961774997848B5B42BEC655768F810D1061B@SHSMSX103.ccr.corp.intel.com> (raw)
In-Reply-To: <1487906675-54260-5-git-send-email-wenzhuo.lu@intel.com>
> -----Original Message-----
> From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Wenzhuo Lu
> Sent: Friday, February 24, 2017 11:25 AM
> To: dev@dpdk.org
> Cc: Lu, Wenzhuo <wenzhuo.lu@intel.com>
> Subject: [dpdk-dev] [PATCH 4/8] net/i40e: set TC strict priority mode
>
> Set some TCs to strict priority mode.
> It's a global setting on a physical port.
>
> Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
> ---
> doc/guides/nics/i40e.rst | 10 +++
> doc/guides/rel_notes/release_17_05.rst | 7 ++
> drivers/net/i40e/i40e_ethdev.c | 119
> ++++++++++++++++++++++++++++++
> drivers/net/i40e/i40e_ethdev.h | 1 +
> drivers/net/i40e/rte_pmd_i40e.h | 15 ++++
> drivers/net/i40e/rte_pmd_i40e_version.map | 1 +
> 6 files changed, 153 insertions(+)
>
> diff --git a/doc/guides/nics/i40e.rst b/doc/guides/nics/i40e.rst index
> 260287e..361d9d9 100644
> --- a/doc/guides/nics/i40e.rst
> +++ b/doc/guides/nics/i40e.rst
> @@ -478,3 +478,13 @@ enabled. If so, return failure.
> When enabling per TC max bandwidth, SW will check if per VF max bandwidth
> is enabled. If so, disable per VF max bandwidth and continue with per TC max
> bandwidth setting.
> +
> +TC TX scheduling mode setting
> +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> +
> +There're 2 TX scheduling modes for TCs, round robin and strict priority mode.
> +If a TC is set to strict priority mode, it can consume unlimited bandwidth.
> +It means if APP has set the max bandwidth for that TC, it comes to no
> +effect.
> +It's suggested to set the strict priority mode for a TC that is latency
> +sensitive but no consuming much bandwidth.
> diff --git a/doc/guides/rel_notes/release_17_05.rst
> b/doc/guides/rel_notes/release_17_05.rst
> index d31435c..99811a2 100644
> --- a/doc/guides/rel_notes/release_17_05.rst
> +++ b/doc/guides/rel_notes/release_17_05.rst
> @@ -55,6 +55,13 @@ New Features
> i40e HW supports to set the max bandwidth for a TC on a VF. Enable this
> capability.
>
> +* **Added TC strict priority mode setting on i40e.**
> +
> + There're 2 TX scheduling modes supported for TCs by i40e HW, round
> + ribon mode and strict priority mode. By default it's round robin
> + mode. Enable the capability to change the TX scheduling mode for a
> + TC. It's a global setting on a physical port.
> +
> Resolved Issues
> + if (!veb->strict_prio_tc)
> + ret = i40e_aq_config_switch_comp_ets(
> + hw, veb->uplink_seid,
> + &ets_data, i40e_aqc_opc_enable_switching_comp_ets,
> + NULL);
How about to check the tc_map when the first time to set strict_prio_tc?
next prev parent reply other threads:[~2017-03-24 5:20 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-02-24 3:24 [dpdk-dev] [PATCH 0/8] QoS features on i40e Wenzhuo Lu
2017-02-24 3:24 ` [dpdk-dev] [PATCH 1/8] net/i40e: set VF max bandwidth from PF Wenzhuo Lu
2017-03-24 5:01 ` Wu, Jingjing
2017-02-24 3:24 ` [dpdk-dev] [PATCH 2/8] net/i40e: allocate VF TC " Wenzhuo Lu
2017-03-24 5:10 ` Wu, Jingjing
2017-02-24 3:24 ` [dpdk-dev] [PATCH 3/8] net/i40e: set VF TC max " Wenzhuo Lu
2017-03-24 5:15 ` Wu, Jingjing
2017-02-24 3:24 ` [dpdk-dev] [PATCH 4/8] net/i40e: set TC strict priority mode Wenzhuo Lu
2017-03-24 5:19 ` Wu, Jingjing [this message]
2017-03-24 7:07 ` Lu, Wenzhuo
2017-03-24 9:34 ` Wu, Jingjing
2017-02-24 3:24 ` [dpdk-dev] [PATCH 5/8] app/testpmd: set VF TX max bandwidth Wenzhuo Lu
2017-03-24 5:21 ` Wu, Jingjing
2017-02-24 3:24 ` [dpdk-dev] [PATCH 6/8] app/testpmd: set VF TC TX min bandwidth Wenzhuo Lu
2017-03-24 5:22 ` Wu, Jingjing
2017-02-24 3:24 ` [dpdk-dev] [PATCH 7/8] app/testpmd: set VF TC TX max bandwidth Wenzhuo Lu
2017-03-24 5:22 ` Wu, Jingjing
2017-02-24 3:24 ` [dpdk-dev] [PATCH 8/8] app/testpmd: set TC strict link priority mode Wenzhuo Lu
2017-03-24 5:23 ` Wu, Jingjing
2017-02-24 6:55 ` [dpdk-dev] [PATCH 0/8] QoS features on i40e Stephen Hemminger
2017-02-24 7:23 ` Lu, Wenzhuo
2017-02-24 9:14 ` [dpdk-dev] [PATCH 0/8] QoS features on i40e - Linux kernel divergence Vincent JARDIN
2017-02-28 5:04 ` Lu, Wenzhuo
2017-03-27 15:13 ` [dpdk-dev] [PATCH 0/8] QoS features on i40e Ferruh Yigit
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