From: "Fischetti, Antonio" <antonio.fischetti@intel.com>
To: "De Lara Guarch, Pablo" <pablo.de.lara.guarch@intel.com>,
"dev@dpdk.org" <dev@dpdk.org>
Cc: "Lu, Wenzhuo" <wenzhuo.lu@intel.com>,
"De Lara Guarch, Pablo" <pablo.de.lara.guarch@intel.com>
Subject: Re: [dpdk-dev] [PATCH v3] ixgbe: add check for tx queue number
Date: Sat, 26 Mar 2016 09:17:35 +0000 [thread overview]
Message-ID: <BCFD2BB875535045A5368D9ADBF2969909CA5925@IRSMSX101.ger.corp.intel.com> (raw)
In-Reply-To: <1458832675-666-1-git-send-email-pablo.de.lara.guarch@intel.com>
> -----Original Message-----
> From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Pablo de Lara
> Sent: Thursday, March 24, 2016 3:18 PM
> To: dev@dpdk.org
> Cc: Lu, Wenzhuo <wenzhuo.lu@intel.com>; De Lara Guarch, Pablo
> <pablo.de.lara.guarch@intel.com>
> Subject: [dpdk-dev] [PATCH v3] ixgbe: add check for tx queue number
>
> From: Wenzhuo Lu <wenzhuo.lu@intel.com>
>
> IXGBE supports 128 TX queues. However, the full 128 queues
> are only available in VT and DCB mode.
> In normal default "none" mode (VT/DCB off) the maximum number
> of available queues is only 64
> (except for 82598EB, which is 32 for all modes).
>
> IXGBE doesn't check the mode when reporting the available
> number of queues. If a queue larger than 64 is used in default mode,
> the TX packets will be dropped silently.
>
> This change adds a check to forbid using a queue number larger than 64
> during device configuration (in default mode), so that the problem is
> reported as early as possible.
> It also changes the order of where the dev_conf parameters are copied
> into the dev structure so that the correct maximum number of queues
> is reported for the correct mode.
>
> Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
> Signed-off-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
Tested-by: Antonio Fischetti <antonio.fischetti@intel.com>
prev parent reply other threads:[~2016-03-26 9:17 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-22 8:08 [dpdk-dev] [PATCH] ixgbe: add TX queue number check Wenzhuo Lu
2016-03-22 8:42 ` Qiu, Michael
2016-03-23 15:28 ` [dpdk-dev] [PATCH v2] ixgbe: add check for tx queue number Pablo de Lara
2016-03-24 8:09 ` Fischetti, Antonio
2016-03-24 8:40 ` Fischetti, Antonio
2016-03-24 10:27 ` De Lara Guarch, Pablo
2016-03-24 15:17 ` [dpdk-dev] [PATCH v3] " Pablo de Lara
2016-03-24 15:22 ` [dpdk-dev] [PATCH v4 0/3] Fix incorrect max TX queue numbers for ixgbe Pablo de Lara
2016-03-24 15:22 ` [dpdk-dev] [PATCH v4 1/3] ixgbe: fix incorrect tx queue number assignment Pablo de Lara
2016-03-24 16:57 ` Mcnamara, John
2016-03-24 15:22 ` [dpdk-dev] [PATCH v4 2/3] ethdev: copy device configuration earlier Pablo de Lara
2016-03-24 16:57 ` Mcnamara, John
2016-03-24 15:22 ` [dpdk-dev] [PATCH v4 3/3] ixgbe: fix incorrect max tx queue number Pablo de Lara
2016-03-24 16:58 ` Mcnamara, John
2016-03-26 9:10 ` Fischetti, Antonio
2016-03-24 17:44 ` [dpdk-dev] [PATCH v4 0/3] Fix incorrect max TX queue numbers for ixgbe Bruce Richardson
2016-03-24 17:46 ` Bruce Richardson
2016-03-26 9:17 ` Fischetti, Antonio [this message]
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