> -----Original Message----- > From: Jakub Kicinski <[email protected]> > Sent: Thursday, July 9, 2020 5:49 AM > To: Ooi, Joyce <[email protected]> > Cc: Thor Thayer <[email protected]>; David S . Miller > <[email protected]>; [email protected]; linux- > [email protected]; Dalon Westergreen > <[email protected]>; Tan, Ley Foon > <[email protected]>; See, Chin Liang <[email protected]>; > Nguyen, Dinh <[email protected]>; Westergreen, Dalon > <[email protected]> > Subject: Re: [PATCH v4 09/10] net: eth: altera: add msgdma prefetcher > > On Wed, 8 Jul 2020 15:24:00 +0800 Ooi, Joyce wrote: > > + /* get prefetcher rx poll frequency from device tree */ > > + if (of_property_read_u32(pdev->dev.of_node, "rx-poll- > freq", > > + &priv->rx_poll_freq)) { > > + dev_info(&pdev->dev, "Defaulting RX Poll Frequency > to 128\n"); > > + priv->rx_poll_freq = 128; > > + } > > + > > + /* get prefetcher rx poll frequency from device tree */ > > + if (of_property_read_u32(pdev->dev.of_node, "tx-poll- > freq", > > + &priv->tx_poll_freq)) { > > + dev_info(&pdev->dev, "Defaulting TX Poll Frequency > to 128\n"); > > + priv->tx_poll_freq = 128; > > + } > > I'm no device tree expert but these look like config options rather than HW > description. They also don't appear to be documented in the next patch.
The poll_freq are part of the msgdma prefetcher IP, whereby it specifies the frequency of descriptor polling operation. I can add the poll_freq description in the next patch.
