Skip site navigation (1)Skip section navigation (2)
Date:      Fri, 1 May 2015 10:32:00 -0700
From:      Navdeep Parhar <nparhar@gmail.com>
To:        Slawa Olhovchenkov <slw@zxy.spb.ru>
Cc:        Gleb Smirnoff <glebius@FreeBSD.org>, John Baldwin <jhb@freebsd.org>, svn-src-head@freebsd.org, svn-src-all@freebsd.org, src-committers@freebsd.org
Subject:   Re: svn commit: r282280 - in head/sys/dev: e1000 ixgbe ixl
Message-ID:  <20150501173200.GA2869@nparhar-pc>
In-Reply-To: <20150501163108.GZ1394@zxy.spb.ru>
References:  <201504301823.t3UINd74073186@svn.freebsd.org> <20150430232736.GB546@FreeBSD.org> <1998053.shmPH6saZj@ralph.baldwin.cx> <20150501135134.GC546@FreeBSD.org> <20150501163108.GZ1394@zxy.spb.ru>

next in thread | previous in thread | raw e-mail | index | archive | help
On Fri, May 01, 2015 at 07:31:08PM +0300, Slawa Olhovchenkov wrote:
> On Fri, May 01, 2015 at 04:51:34PM +0300, Gleb Smirnoff wrote:
...
> > 
> > However, if we don't expect the number of queues to exceed a reasonable
> > number of 255 :), we can fit the functionality into existing API.
> > We can keep the queue number in the highest 8 bits of the ift_counter
> > parameter.
> 
> In case of hardware-assist NIC emulation numbers may be rise: x710
> have 1536 queue per port.

I agree that 255 is pretty low.  cxgbe(4) hardware also supports more
queues than this already (it supports 1K rx queues and 64K tx queues).

Regards,
Navdeep



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20150501173200.GA2869>