From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bin Meng Date: Wed, 16 Dec 2020 15:17:14 +0800 Subject: [PATCH 1/6] net: macb: use dummy descriptor for RBQP In-Reply-To: <540f6c03-7032-9512-2c4b-175e5c1e7bc5@microchip.com> References: <1606987556-20217-1-git-send-email-claudiu.beznea@microchip.com> <1606987556-20217-2-git-send-email-claudiu.beznea@microchip.com> <540f6c03-7032-9512-2c4b-175e5c1e7bc5@microchip.com> Message-ID: List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Hi Eugen, On Wed, Dec 16, 2020 at 2:55 PM wrote: > > On 03.12.2020 11:25, Claudiu Beznea wrote: > > In case of multiple queues on RX side the queue scheduler > > will try to use all the available configured queues (with > > descriptors having TX_USED bit cleared). If at least one RBQP > > points to a descriptor with a valid used bit configuration then > > the reception may block as this may point to any memory. To avoid > > this scenario all the queues (except queue zero) were disabled by > > setting DMA descriptors with used bit set on proper RBQP. The driver > > anyway uses only queue 0 for TX/RX. > > > > Signed-off-by: Claudiu Beznea > > --- > > Hi Anup, Bin, Padmarao, > > I noticed on the mailing list that you have been actively working and > testing the Macb driver on various platforms, we have this series > outstanding and I want to make sure that it does not break anything on > your side, so it would be appreciated if you could have a look or test > it before it goes into master branch. > Is this series for Microchip PolarFire SoC? Regards, Bin