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From: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
To: Ethan Zhao <ethan.zhao@oracle.com>,
	jesse.brandeburg@intel.com, shannon.nelson@intel.com,
	carolyn.wyborny@intel.com, donald.c.skidmore@intel.com,
	bruce.w.allan@intel.com, john.ronciak@intel.com,
	mitch.a.williams@intel.com, intel-wired-lan@lists.osuosl.org,
	netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, ethan.kernel@gmail.com
Subject: Re: [PATCH] ixgbe: take online CPU number as MQ max limit when  alloc_etherdev_mq()
Date: Mon, 16 May 2016 13:58:42 -0700	[thread overview]
Message-ID: <1463432322.2609.12.camel@intel.com> (raw)
In-Reply-To: <1463118995-31763-1-git-send-email-ethan.zhao@oracle.com>

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On Fri, 2016-05-13 at 14:56 +0900, Ethan Zhao wrote:
> Allocating 64 Tx/Rx as default doesn't benefit perfomrnace when less
> CPUs were assigned. especially when DCB is enabled, so we should take
> num_online_cpus() as top limit, and aslo to make sure every TC has
> at least one queue, take the MAX_TRAFFIC_CLASS as bottom limit of queues
> number.
> 
> Signed-off-by: Ethan Zhao <ethan.zhao@oracle.com>
> ---
>  drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 4 ++++
>  1 file changed, 4 insertions(+)

Dropping this patch based on Alex's and John's feedback.

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WARNING: multiple messages have this Message-ID (diff)
From: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
To: Ethan Zhao <ethan.zhao@oracle.com>,
	jesse.brandeburg@intel.com, shannon.nelson@intel.com,
	carolyn.wyborny@intel.com, donald.c.skidmore@intel.com,
	bruce.w.allan@intel.com, john.ronciak@intel.com,
	mitch.a.williams@intel.com, intel-wired-lan@lists.osuosl.org,
	netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, ethan.kernel@gmail.com
Subject: Re: [PATCH] ixgbe: take online CPU number as MQ max limit when alloc_etherdev_mq()
Date: Mon, 16 May 2016 13:58:42 -0700	[thread overview]
Message-ID: <1463432322.2609.12.camel@intel.com> (raw)
In-Reply-To: <1463118995-31763-1-git-send-email-ethan.zhao@oracle.com>

[-- Attachment #1: Type: text/plain, Size: 575 bytes --]

On Fri, 2016-05-13 at 14:56 +0900, Ethan Zhao wrote:
> Allocating 64 Tx/Rx as default doesn't benefit perfomrnace when less
> CPUs were assigned. especially when DCB is enabled, so we should take
> num_online_cpus() as top limit, and aslo to make sure every TC has
> at least one queue, take the MAX_TRAFFIC_CLASS as bottom limit of queues
> number.
> 
> Signed-off-by: Ethan Zhao <ethan.zhao@oracle.com>
> ---
>  drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 4 ++++
>  1 file changed, 4 insertions(+)

Dropping this patch based on Alex's and John's feedback.

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WARNING: multiple messages have this Message-ID (diff)
From: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
To: intel-wired-lan@osuosl.org
Subject: [Intel-wired-lan] [PATCH] ixgbe: take online CPU number as MQ max limit when alloc_etherdev_mq()
Date: Mon, 16 May 2016 13:58:42 -0700	[thread overview]
Message-ID: <1463432322.2609.12.camel@intel.com> (raw)
In-Reply-To: <1463118995-31763-1-git-send-email-ethan.zhao@oracle.com>

On Fri, 2016-05-13 at 14:56 +0900, Ethan Zhao wrote:
> Allocating 64 Tx/Rx as default doesn't benefit perfomrnace when less
> CPUs were assigned. especially when DCB is enabled, so we should take
> num_online_cpus() as top limit, and aslo to make sure every TC has
> at least one queue, take the MAX_TRAFFIC_CLASS as bottom limit of queues
> number.
> 
> Signed-off-by: Ethan Zhao <ethan.zhao@oracle.com>
> ---
> ?drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 4 ++++
> ?1 file changed, 4 insertions(+)

Dropping this patch based on Alex's and John's feedback.
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  parent reply	other threads:[~2016-05-16 20:58 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-05-13  5:56 [PATCH] ixgbe: take online CPU number as MQ max limit when alloc_etherdev_mq() Ethan Zhao
2016-05-13  5:56 ` [Intel-wired-lan] " Ethan Zhao
2016-05-13 12:52 ` Sergei Shtylyov
2016-05-13 12:52   ` [Intel-wired-lan] " Sergei Shtylyov
2016-05-16  5:38   ` ethan zhao
2016-05-16  5:38     ` [Intel-wired-lan] " ethan zhao
2016-05-13 16:46 ` Alexander Duyck
2016-05-13 16:46   ` [Intel-wired-lan] " Alexander Duyck
2016-05-16  2:59   ` ethan zhao
2016-05-16  2:59     ` [Intel-wired-lan] " ethan zhao
2016-05-16 16:09     ` Alexander Duyck
2016-05-16 16:09       ` [Intel-wired-lan] " Alexander Duyck
2016-05-16 17:14       ` John Fastabend
2016-05-16 17:14         ` John Fastabend
2016-05-17  9:00       ` ethan zhao
2016-05-17  9:00         ` [Intel-wired-lan] " ethan zhao
2016-05-17 15:58         ` Alexander Duyck
2016-05-17 15:58           ` [Intel-wired-lan] " Alexander Duyck
2016-05-16 20:58 ` Jeff Kirsher [this message]
2016-05-16 20:58   ` Jeff Kirsher
2016-05-16 20:58   ` Jeff Kirsher

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