: Wednesday, July 16, 2014 7:27 AM
To: John W. Linville
Cc: dev at dpdk.org
Subject: Re: [dpdk-dev] [PATCH] librte_pmd_packet: add PMD for AF_PACKET-based
virtual devices
2014-07-16 10:07, John W. Linville:
> On Tue, Jul 15, 2014 at 11:27:45PM +0200, Thomas Monjalon wrote:
> > 2014-07-14 09:4
On Tue, Jul 15, 2014 at 11:27:45PM +0200, Thomas Monjalon wrote:
> 2014-07-14 09:46, John W. Linville:
> > On Sat, Jul 12, 2014 at 12:34:46AM +0200, Thomas Monjalon wrote:
> > > 2014-07-11 13:40, John W. Linville:
> > > > Is there an example of code in DPDK that requires specific kernel
> > > >
2014-07-14 09:46, John W. Linville:
> On Sat, Jul 12, 2014 at 12:34:46AM +0200, Thomas Monjalon wrote:
> > 2014-07-11 13:40, John W. Linville:
> > > Is there an example of code in DPDK that requires specific kernel
> > > versions? What is the preferred method for coding such dependencies?
> >
>
On Sat, Jul 12, 2014 at 12:30:34AM +0200, Thomas Monjalon wrote:
> About the form of the patch, I have 2 comments:
>
> 1) A doc explaining the design, the dependencies and how it can be used would
> be a great help. Could you write it in rst format?
What is rst format? Are there other examples
On Mon, Jul 14, 2014 at 09:48:33AM -0400, John W. Linville wrote:
> On Fri, Jul 11, 2014 at 11:51:08PM +0100, Bruce Richardson wrote:
> > On Thu, Jul 10, 2014 at 04:32:49PM -0400, John W. Linville wrote:
> > > This is a Linux-specific virtual PMD driver backed by an AF_PACKET
> > I'm just trying
On Fri, Jul 11, 2014 at 11:51:08PM +0100, Bruce Richardson wrote:
> On Thu, Jul 10, 2014 at 04:32:49PM -0400, John W. Linville wrote:
> > This is a Linux-specific virtual PMD driver backed by an AF_PACKET
> > socket. This implementation uses mmap'ed ring buffers to limit copying
> > and
u, Danny
> > Cc: dev at dpdk.org
> > Subject: Re: [dpdk-dev] [PATCH] librte_pmd_packet: add PMD for
> > AF_PACKET-based virtual devices
> >
> > Not sure what the issue might be, PACKET_FANOUT_FLAG_ROLLOVER is defined
> > in include/uapi/linux/if_packet.h in
> > > To: Zhou, Danny
> > > Cc: dev at dpdk.org
> > > Subject: Re: [dpdk-dev] [PATCH] librte_pmd_packet: add PMD for
> > > AF_PACKET-based virtual devices
> > >
> > > On Fri, Jul 11, 2014 at 05:20:42PM +, Zhou, Danny wrote:
> > > > Looks
2014-07-11 13:40, John W. Linville:
> Is there an example of code in DPDK that requires specific kernel
> versions? What is the preferred method for coding such dependencies?
No there is no userspace code checking kernel version in DPDK.
Feel free to use what you think the best method.
Please
About the form of the patch, I have 2 comments:
1) A doc explaining the design, the dependencies and how it can be used would
be a great help. Could you write it in rst format?
2) checkpatch.pl returns these errors:
ERROR:SPACING: space required before the open parenthesis '('
#468: FILE:
On Thu, Jul 10, 2014 at 04:32:49PM -0400, John W. Linville wrote:
> This is a Linux-specific virtual PMD driver backed by an AF_PACKET
> socket. This implementation uses mmap'ed ring buffers to limit copying
> and user/kernel transitions. The PACKET_FANOUT_HASH behavior of
> AF_PACKET is used
ubject: Re: [dpdk-dev] [PATCH] librte_pmd_packet: add PMD for AF_PACKET-based
virtual devices
I want to run a common DPDK L2 or L3 forward benchmark for bi-direction
traffics, so at least two ports are required. Just like how to measure Linux
bridge or OVS performance, you need add at least
nville at tuxdriver.com]
> Sent: Saturday, July 12, 2014 3:32 AM
> To: Zhou, Danny
> Cc: dev at dpdk.org
> Subject: Re: [dpdk-dev] [PATCH] librte_pmd_packet: add PMD for
> AF_PACKET-based virtual devices
>
> I'm not sure that would make any sense -- the AF_PACKET sockets are mapp
To: 'John W. Linville'
> Cc: dev at dpdk.org
> Subject: RE: [dpdk-dev] [PATCH] librte_pmd_packet: add PMD for
> AF_PACKET-based virtual devices
>
> Tried on 3.12, both of them are undefined. Anyway, will comment them out and
> see
> what performance it could achieve.
>
&
2014-07-11 11:30, John W. Linville:
> On Fri, Jul 11, 2014 at 05:04:04PM +0200, Thomas Monjalon wrote:
> > 2014-07-11 10:51, John W. Linville:
> > > On Fri, Jul 11, 2014 at 03:26:39PM +0200, Thomas Monjalon wrote:
> > > > Thank you for this nice work.
> > > >
> > > > I think it would be well
k.org
> Subject: Re: [dpdk-dev] [PATCH] librte_pmd_packet: add PMD for
> AF_PACKET-based virtual devices
>
> On Fri, Jul 11, 2014 at 05:20:42PM +, Zhou, Danny wrote:
> > Looks like you used a pretty new kernel version with new socket options
> > that old
> kernel l
> -Original Message-
> From: dev [mailto:dev-bounces at dpdk.org] On Behalf Of Thomas Monjalon
> Sent: Friday, July 11, 2014 9:48 AM
> To: John W. Linville
> Cc: dev at dpdk.org
> Subject: Re: [dpdk-dev] [PATCH] librte_pmd_packet: add PMD for AF_PACKET-
> based virtual
2014-07-11 10:51, John W. Linville:
> On Fri, Jul 11, 2014 at 03:26:39PM +0200, Thomas Monjalon wrote:
> > 2014-07-10 16:32, John W. Linville:
> > > This is a Linux-specific virtual PMD driver backed by an AF_PACKET
> > > socket. This implementation uses mmap'ed ring buffers to limit copying
> >
; From: dev [mailto:dev-bounces at dpdk.org] On Behalf Of Zhou, Danny
> > Sent: Friday, July 11, 2014 1:27 PM
> > To: John W. Linville
> > Cc: dev at dpdk.org
> > Subject: Re: [dpdk-dev] [PATCH] librte_pmd_packet: add PMD for
> > AF_PACKET-based virtual devices
> >
dpdk.org
> > Subject: Re: [dpdk-dev] [PATCH] librte_pmd_packet: add PMD for
> > AF_PACKET- based virtual devices
> >
> > On Fri, Jul 11, 2014 at 06:11:47AM -0700, Stephen Hemminger wrote:
> > > On Thu, 10 Jul 2014 16:32:49 -0400 "John W. Linville"
; > > -Original Message-
> > > From: John W. Linville [mailto:linville at tuxdriver.com]
> > > Sent: Saturday, July 12, 2014 1:41 AM
> > > To: Zhou, Danny
> > > Cc: dev at dpdk.org
> > > Subject: Re: [dpdk-dev] [PATCH] librte_pmd_packet: a
> -Original Message-
> From: dev [mailto:dev-bounces at dpdk.org] On Behalf Of John W. Linville
> Sent: Friday, July 11, 2014 7:49 AM
> To: Stephen Hemminger
> Cc: dev at dpdk.org
> Subject: Re: [dpdk-dev] [PATCH] librte_pmd_packet: add PMD for
> AF_PACKET-
2014-07-10 16:32, John W. Linville:
> This is a Linux-specific virtual PMD driver backed by an AF_PACKET
> socket. This implementation uses mmap'ed ring buffers to limit copying
> and user/kernel transitions. The PACKET_FANOUT_HASH behavior of
> AF_PACKET is used for frame reception. In the
> -Original Message-
> From: dev [mailto:dev-bounces at dpdk.org] On Behalf Of John W. Linville
> Sent: Friday, July 11, 2014 7:49 AM
> To: Stephen Hemminger
> Cc: dev at dpdk.org
> Subject: Re: [dpdk-dev] [PATCH] librte_pmd_packet: add PMD for AF_PACKET-
>
rmance it could achieve.
>
> > -Original Message-
> > From: John W. Linville [mailto:linville at tuxdriver.com]
> > Sent: Saturday, July 12, 2014 1:41 AM
> > To: Zhou, Danny
> > Cc: dev at dpdk.org
> > Subject: Re: [dpdk-dev] [PATCH] librte_pmd_packet: ad
> Subject: Re: [dpdk-dev] [PATCH] librte_pmd_packet: add PMD for AF_PACKET-
> > based virtual devices
> >
> > 2014-07-11 11:30, John W. Linville:
> > > On Fri, Jul 11, 2014 at 05:04:04PM +0200, Thomas Monjalon wrote:
> > > > 2014-07-11 10:51, John W. Li
On Fri, Jul 11, 2014 at 05:20:42PM +, Zhou, Danny wrote:
> Looks like you used a pretty new kernel version with new socket options that
> old kernel like my 3.12 does not support. When I tried this patch, it just
> cannot build, and compiler complains like below. Which Linux distribution
>
org
> > Subject: Re: [dpdk-dev] [PATCH] librte_pmd_packet: add PMD for
> > AF_PACKET- based virtual devices
> >
> > On Fri, Jul 11, 2014 at 06:11:47AM -0700, Stephen Hemminger wrote:
> > > On Thu, 10 Jul 2014 16:32:49 -0400
> > > "John W. Linvi
On Fri, Jul 11, 2014 at 05:04:04PM +0200, Thomas Monjalon wrote:
> 2014-07-11 10:51, John W. Linville:
> > On Fri, Jul 11, 2014 at 03:26:39PM +0200, Thomas Monjalon wrote:
> > > 2014-07-10 16:32, John W. Linville:
> > > > This is a Linux-specific virtual PMD driver backed by an AF_PACKET
> > > >
On Fri, Jul 11, 2014 at 06:11:47AM -0700, Stephen Hemminger wrote:
> On Thu, 10 Jul 2014 16:32:49 -0400
> "John W. Linville" wrote:
>
> > This is a Linux-specific virtual PMD driver backed by an AF_PACKET
> > socket. This implementation uses mmap'ed ring buffers to limit copying
> > and
On Thu, 10 Jul 2014 16:32:49 -0400
"John W. Linville" wrote:
> This is a Linux-specific virtual PMD driver backed by an AF_PACKET
> socket. This implementation uses mmap'ed ring buffers to limit copying
> and user/kernel transitions. The PACKET_FANOUT_HASH behavior of
> AF_PACKET is used for
This is a Linux-specific virtual PMD driver backed by an AF_PACKET
socket. This implementation uses mmap'ed ring buffers to limit copying
and user/kernel transitions. The PACKET_FANOUT_HASH behavior of
AF_PACKET is used for frame reception. In the current implementation,
Tx and Rx queues are
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