From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?iso-8859-1?Q?M=E5ns_Rullg=E5rd?= Subject: Re: [RFC PATCH v2 0/2] nb8800 suspend/resume support Date: Wed, 02 Aug 2017 17:10:06 +0100 Message-ID: References: <33d1ab47-6098-5e3f-8a3c-f72626d07113@free.fr> <9e8e12b1-74e2-8323-ec16-eebda46b2a3d@free.fr> <6906dccf-bec9-0fc8-a34a-c39c05ada917@free.fr> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Cc: netdev , Florian Fainelli , David Miller , Linux ARM To: Mason Return-path: In-Reply-To: <6906dccf-bec9-0fc8-a34a-c39c05ada917@free.fr> (Mason's message of "Wed, 2 Aug 2017 18:07:52 +0200") List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=m.gmane.org@lists.infradead.org List-Id: netdev.vger.kernel.org Mason writes: > On 02/08/2017 17:56, M=E5ns Rullg=E5rd wrote: > >> Mason writes: >> = >>> From my perspective, the older method does not work on newer chips :-) >> = >> It does work on tango4. > > Agreed. > >> What does the tango5 do if you flood it with packets faster than the >> kernel can keep up with? That would make it hit the end of the rx >> chain, which is apparently what makes it miserable with the current dma >> stop code. > > The simplest way to test this would be sending tiny packets > as fast as possible, right? So ping -f on a GigE link should > fit the bill? ping -f is limited to 100 packets per second. Use something like iperf in UDP mode instead. -- = M=E5ns Rullg=E5rd