All of lore.kernel.org
 help / color / mirror / Atom feed
From: Ansuel Smith <ansuelsmth@gmail.com>
To: Florian Fainelli <f.fainelli@gmail.com>
Cc: Andrew Lunn <andrew@lunn.ch>,
	Vivien Didelot <vivien.didelot@gmail.com>,
	Vladimir Oltean <olteanv@gmail.com>,
	"David S. Miller" <davem@davemloft.net>,
	Jakub Kicinski <kuba@kernel.org>,
	Rob Herring <robh+dt@kernel.org>,
	Heiner Kallweit <hkallweit1@gmail.com>,
	Russell King <linux@armlinux.org.uk>,
	netdev@vger.kernel.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH 02/14] drivers: net: dsa: qca8k: tweak internal delay to oem spec
Date: Fri, 23 Apr 2021 03:57:32 +0200	[thread overview]
Message-ID: <YIIpjBH8hZH/MaS7@Ansuel-xps.localdomain> (raw)
In-Reply-To: <fdddeb1a-33c7-3087-86a1-f3b735a90eb1@gmail.com>

On Thu, Apr 22, 2021 at 06:53:45PM -0700, Florian Fainelli wrote:
> 
> 
> On 4/22/2021 6:47 PM, Ansuel Smith wrote:
> > The original code had the internal dalay set to 1 for tx and 2 for rx.
> > Apply the oem internal dalay to fix some switch communication error.
> > 
> > Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
> > ---
> >  drivers/net/dsa/qca8k.c | 6 ++++--
> >  drivers/net/dsa/qca8k.h | 9 ++++-----
> >  2 files changed, 8 insertions(+), 7 deletions(-)
> > 
> > diff --git a/drivers/net/dsa/qca8k.c b/drivers/net/dsa/qca8k.c
> > index a6d35b825c0e..b8bfc7acf6f4 100644
> > --- a/drivers/net/dsa/qca8k.c
> > +++ b/drivers/net/dsa/qca8k.c
> > @@ -849,8 +849,10 @@ qca8k_phylink_mac_config(struct dsa_switch *ds, int port, unsigned int mode,
> >  		 */
> >  		qca8k_write(priv, reg,
> >  			    QCA8K_PORT_PAD_RGMII_EN |
> > -			    QCA8K_PORT_PAD_RGMII_TX_DELAY(QCA8K_MAX_DELAY) |
> > -			    QCA8K_PORT_PAD_RGMII_RX_DELAY(QCA8K_MAX_DELAY));
> > +			    QCA8K_PORT_PAD_RGMII_TX_DELAY(1) |
> > +			    QCA8K_PORT_PAD_RGMII_RX_DELAY(2) |
> > +			    QCA8K_PORT_PAD_RGMII_TX_DELAY_EN |
> > +			    QCA8K_PORT_PAD_RGMII_RX_DELAY_EN);
> 
> There are standard properties in order to configure a specific RX and TX
> delay:
> 
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/devicetree/bindings/net/ethernet-controller.yaml#n125
> 
> can you use that mechanism and parse that property, or if nothing else,
> allow an user to override delays via device tree using these standard
> properties?

Since this is mac config, what would be the best way to parse these
data? Parse them in the qca8k_setup and put them in the
qca8k_priv?

> -- 
> Florian

  reply	other threads:[~2021-04-23  1:57 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-23  1:47 [PATCH 00/14] Multiple improvement to qca8k stability Ansuel Smith
2021-04-23  1:47 ` [PATCH 01/14] drivers: net: dsa: qca8k: handle error with set_page Ansuel Smith
2021-04-23  1:52   ` Florian Fainelli
2021-04-23  1:47 ` [PATCH 02/14] drivers: net: dsa: qca8k: tweak internal delay to oem spec Ansuel Smith
2021-04-23  1:53   ` Florian Fainelli
2021-04-23  1:57     ` Ansuel Smith [this message]
2021-04-23  1:58       ` Florian Fainelli
2021-04-23 12:25   ` Andrew Lunn
2021-04-23  1:47 ` [PATCH 03/14] drivers: net: mdio: mdio-ip8064: improve busy wait delay Ansuel Smith
2021-04-23  1:56   ` Florian Fainelli
2021-04-23  2:03     ` Ansuel Smith
2021-04-23 12:38   ` Andrew Lunn
2021-04-23  1:47 ` [PATCH 04/14] drivers: net: dsa: qca8k: apply suggested packet priority Ansuel Smith
2021-04-23  1:47 ` [PATCH 05/14] drivers: net: dsa: qca8k: add support for qca8327 switch Ansuel Smith
2021-04-23 12:42   ` Andrew Lunn
2021-04-23  1:47 ` [PATCH 06/14] devicetree: net: dsa: qca8k: Document new compatible qca8327 Ansuel Smith
2021-04-23  1:47 ` [PATCH 07/14] drivers: net: dsa: qca8k: limit priority tweak to qca8337 switch Ansuel Smith
2021-04-23  1:59   ` Florian Fainelli
2021-04-23  1:47 ` [PATCH 08/14] drivers: net: dsa: qca8k: add GLOBAL_FC settings needed for qca8327 Ansuel Smith
2021-04-23  1:47 ` [PATCH 09/14] drivers: net: dsa: qca8k: add support for switch rev Ansuel Smith
2021-04-23  1:47 ` [PATCH 10/14] drivers: net: dsa: qca8k: add support for specific QCA access function Ansuel Smith
2021-04-23 12:47   ` Andrew Lunn
2021-04-23  1:47 ` [PATCH 11/14] drivers: net: dsa: qca8k: apply switch revision fix Ansuel Smith
2021-04-23  2:02   ` Florian Fainelli
2021-04-24 21:18     ` Ansuel Smith
2021-04-24 21:49       ` Heiner Kallweit
2021-04-25  1:09       ` Florian Fainelli
2021-04-25  1:19         ` Ansuel Smith
2021-04-25  4:45       ` DENG Qingfang
2021-04-25 11:59         ` Ansuel Smith
2021-04-25 14:33           ` Andrew Lunn
2021-04-23  1:47 ` [PATCH 12/14] drivers: net: dsa: qca8k: clear MASTER_EN after phy read/write Ansuel Smith
2021-04-23  1:47 ` [PATCH 13/14] drivers: net: dsa: qca8k: protect MASTER busy_wait with mdio mutex Ansuel Smith
2021-04-23 12:53   ` Andrew Lunn
2021-04-23  1:47 ` [PATCH 14/14] drivers: net: dsa: qca8k: enlarge mdio delay and timeout Ansuel Smith
2021-04-23  1:51 ` [PATCH 00/14] Multiple improvement to qca8k stability Florian Fainelli

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=YIIpjBH8hZH/MaS7@Ansuel-xps.localdomain \
    --to=ansuelsmth@gmail.com \
    --cc=andrew@lunn.ch \
    --cc=davem@davemloft.net \
    --cc=devicetree@vger.kernel.org \
    --cc=f.fainelli@gmail.com \
    --cc=hkallweit1@gmail.com \
    --cc=kuba@kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux@armlinux.org.uk \
    --cc=netdev@vger.kernel.org \
    --cc=olteanv@gmail.com \
    --cc=robh+dt@kernel.org \
    --cc=vivien.didelot@gmail.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.