From: Bruce Richardson <bruce.richardson@intel.com>
To: Thomas Monjalon <thomas.monjalon@6wind.com>
Cc: dev@dpdk.org, Dept-EngDPDKDev@qlogic.com, ferruh.yigit@intel.com
Subject: Re: [dpdk-dev] [PATCH v4 18/32] net/qede: add missing 100G link speed capability
Date: Wed, 26 Oct 2016 16:54:37 +0100 [thread overview]
Message-ID: <20161026155437.GD42064@bricha3-MOBL3.ger.corp.intel.com> (raw)
In-Reply-To: <4491648.SeJM0cAZEU@xps13>
On Wed, Oct 26, 2016 at 05:41:58PM +0200, Thomas Monjalon wrote:
> 2016-10-18 21:11, Rasesh Mody:
> > From: Harish Patil <harish.patil@qlogic.com>
> >
> > This patch fixes the missing 100G link speed advertisement
> > when the 100G support was initially added.
> >
> > Fixes: 2af14ca79c0a ("net/qede: support 100G")
> >
> > Signed-off-by: Harish Patil <harish.patil@qlogic.com>
> [...]
> > [Features]
> > +Speed capabilities = Y
>
> This feature should be checked only when it is fully implemented,
> i.e. when you return the real capabilities of the device.
>
> > --- a/drivers/net/qede/qede_ethdev.c
> > +++ b/drivers/net/qede/qede_ethdev.c
> > @@ -599,7 +599,8 @@ qede_dev_info_get(struct rte_eth_dev *eth_dev,
> > DEV_TX_OFFLOAD_UDP_CKSUM |
> > DEV_TX_OFFLOAD_TCP_CKSUM);
> >
> > - dev_info->speed_capa = ETH_LINK_SPEED_25G | ETH_LINK_SPEED_40G;
> > + dev_info->speed_capa = ETH_LINK_SPEED_25G | ETH_LINK_SPEED_40G |
> > + ETH_LINK_SPEED_100G;
> > }
>
> It is only faking the capabilities at driver-level.
> You should check if the underlying device is able to achieve 100G
> before advertising this flag to the application.
>
> I suggest to update this patch to remove the doc update.
> The contract is to fill it only when the code is fixed.
> By the way, we must call every other drivers to properly implement
> this feature.
I agree that devices should only advertise speeds they support and the
doc should reflect this ability (or lack of this ability) in a driver.
Regards,
/Bruce
next prev parent reply other threads:[~2016-10-26 15:54 UTC|newest]
Thread overview: 59+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-19 4:11 [dpdk-dev] [PATCH v4 00/32] net/qede: update qede pmd to 1.2.0.1 and enable by default Rasesh Mody
2016-10-19 4:11 ` [dpdk-dev] [PATCH v4 01/32] net/qede/base: add new init files and rearrange the code Rasesh Mody
2016-10-19 4:11 ` [dpdk-dev] [PATCH v4 02/32] net/qede/base: formatting changes Rasesh Mody
2016-10-19 4:11 ` [dpdk-dev] [PATCH v4 03/32] net/qede: use FW CONFIG defines as needed Rasesh Mody
2016-10-19 4:11 ` [dpdk-dev] [PATCH v4 04/32] net/qede/base: add HSI changes and register defines Rasesh Mody
2016-10-19 12:37 ` Ferruh Yigit
2016-10-19 13:46 ` Mody, Rasesh
2016-10-19 4:11 ` [dpdk-dev] [PATCH v4 05/32] net/qede/base: add attention formatting string Rasesh Mody
2016-10-19 4:11 ` [dpdk-dev] [PATCH v4 06/32] net/qede/base: additional formatting/comment changes Rasesh Mody
2016-10-19 4:11 ` [dpdk-dev] [PATCH v4 07/32] net/qede: fix 32 bit compilation Rasesh Mody
2016-10-26 16:54 ` Thomas Monjalon
2016-10-26 21:01 ` Mody, Rasesh
2016-10-26 21:40 ` Thomas Monjalon
2016-10-28 6:37 ` [dpdk-dev] [PATCH] net/qede: fix gcc compiler option checks Rasesh Mody
2016-10-28 22:12 ` Stephen Hemminger
2016-10-28 22:49 ` Mody, Rasesh
2016-11-07 19:54 ` Thomas Monjalon
2016-11-07 20:10 ` Thomas Monjalon
2016-10-19 4:11 ` [dpdk-dev] [PATCH v4 08/32] net/qede: change signature of MCP command API Rasesh Mody
2016-10-19 4:11 ` [dpdk-dev] [PATCH v4 09/32] net/qede: serialize access to MFW mbox Rasesh Mody
2016-10-19 4:11 ` [dpdk-dev] [PATCH v4 10/32] net/qede: add NIC selftest and query sensor info support Rasesh Mody
2016-10-19 4:11 ` [dpdk-dev] [PATCH v4 11/32] net/qede/base: update base driver Rasesh Mody
2021-03-24 14:07 ` Ferruh Yigit
2016-10-19 4:11 ` [dpdk-dev] [PATCH v4 12/32] net/qede/base: rename structure and defines Rasesh Mody
2016-10-19 4:11 ` [dpdk-dev] [PATCH v4 13/32] net/qede/base: comment enhancements Rasesh Mody
2016-10-19 4:11 ` [dpdk-dev] [PATCH v4 14/32] net/qede/base: add MFW crash dump support Rasesh Mody
2016-10-19 4:11 ` [dpdk-dev] [PATCH v4 15/32] net/qede: enable support for unequal number of Rx/Tx queues Rasesh Mody
2016-10-19 4:11 ` [dpdk-dev] [PATCH v4 16/32] net/qede: fix port (re)configuration issue Rasesh Mody
2016-10-19 4:11 ` [dpdk-dev] [PATCH v4 17/32] net/qede/base: allow MTU change via vport-update Rasesh Mody
2016-10-19 4:11 ` [dpdk-dev] [PATCH v4 18/32] net/qede: add missing 100G link speed capability Rasesh Mody
2016-10-26 15:41 ` Thomas Monjalon
2016-10-26 15:54 ` Bruce Richardson [this message]
2016-10-26 21:28 ` Harish Patil
2016-10-26 21:43 ` Thomas Monjalon
2016-10-28 6:42 ` [dpdk-dev] [PATCH] net/qede: fix advertising " Rasesh Mody
2016-10-28 7:26 ` Thomas Monjalon
2016-10-29 1:11 ` Harish Patil
2016-10-29 6:14 ` [dpdk-dev] [PATCH v2] " Rasesh Mody
2016-10-31 18:35 ` [dpdk-dev] [PATCH v3] " Rasesh Mody
2016-10-31 18:35 ` Rasesh Mody
2016-11-07 19:48 ` Thomas Monjalon
2016-11-10 2:54 ` Harish Patil
2016-10-19 4:11 ` [dpdk-dev] [PATCH v4 19/32] net/qede: remove unused/dead code Rasesh Mody
2016-10-19 4:11 ` [dpdk-dev] [PATCH v4 20/32] net/qede: fixes for VLAN filters Rasesh Mody
2016-10-19 4:11 ` [dpdk-dev] [PATCH v4 21/32] net/qede: add enable/disable VLAN filtering Rasesh Mody
2016-10-19 4:11 ` [dpdk-dev] [PATCH v4 22/32] net/qede: fix RSS related issues Rasesh Mody
2016-10-19 4:11 ` [dpdk-dev] [PATCH v4 23/32] net/qede: add scatter gather support Rasesh Mody
2016-10-19 4:11 ` [dpdk-dev] [PATCH v4 24/32] net/qede/base: change Rx Tx queue start APIs Rasesh Mody
2016-10-19 4:11 ` [dpdk-dev] [PATCH v4 25/32] net/qede/base: add support to initiate PF FLR Rasesh Mody
2016-10-19 4:11 ` [dpdk-dev] [PATCH v4 26/32] net/qede: skip slowpath polling for 100G VF device Rasesh Mody
2016-10-19 4:11 ` [dpdk-dev] [PATCH v4 27/32] net/qede: fix driver version string Rasesh Mody
2016-10-19 4:11 ` [dpdk-dev] [PATCH v4 28/32] net/qede: fix status block index for VF queues Rasesh Mody
2016-10-19 4:11 ` [dpdk-dev] [PATCH v4 29/32] net/qede: add support for queue statistics Rasesh Mody
2016-10-19 4:11 ` [dpdk-dev] [PATCH v4 30/32] net/qede: remove zlib dependency and enable PMD by default Rasesh Mody
2016-10-19 4:11 ` [dpdk-dev] [PATCH v4 31/32] doc: update qede pmd documentation Rasesh Mody
2016-10-19 4:11 ` [dpdk-dev] [PATCH v4 32/32] net/qede: update driver version Rasesh Mody
2016-10-24 13:41 ` [dpdk-dev] [PATCH v4 00/32] net/qede: update qede pmd to 1.2.0.1 and enable by default Bruce Richardson
2016-10-26 15:20 ` Thomas Monjalon
2016-10-26 17:01 ` Mody, Rasesh
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