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SubjectRe: [PATCH net-next 1/1] net: stmmac: Add support for external trigger timestamping
On Wed, Apr 07, 2021 at 04:21:09PM +0200, Andrew Lunn wrote:
> On Wed, Apr 07, 2021 at 10:15:37PM +0800, Wong Vee Khee wrote:
> > From: Tan Tee Min <tee.min.tan@intel.com>
> >
> > The Synopsis MAC controller supports auxiliary snapshot feature that
> > allows user to store a snapshot of the system time based on an external
> > event.
> >
> > This patch add supports to the above mentioned feature. Users will be
> > able to triggered capturing the time snapshot from user-space using
> > application such as testptp or any other applications that uses the
> > PTP_EXTTS_REQUEST ioctl request.
>
> You forgot to Cc: the PTP maintainer.
>

Will Cc Richard Cochran on v2.

> > @@ -159,6 +163,37 @@ static int stmmac_enable(struct ptp_clock_info *ptp,
> > priv->systime_flags);
> > spin_unlock_irqrestore(&priv->ptp_lock, flags);
> > break;
> > + case PTP_CLK_REQ_EXTTS:
> > + priv->plat->ext_snapshot_en = on;
> > + mutex_lock(&priv->aux_ts_lock);
> > + acr_value = readl(ptpaddr + PTP_ACR);
> > + acr_value &= ~PTP_ACR_MASK;
> > + if (on) {
> > + /* Enable External snapshot trigger */
> > + acr_value |= priv->plat->ext_snapshot_num;
> > + acr_value |= PTP_ACR_ATSFC;
> > + pr_info("Auxiliary Snapshot %d enabled.\n",
> > + priv->plat->ext_snapshot_num >>
> > + PTP_ACR_ATSEN_SHIFT);
>
> dev_dbg()?
>
> > + /* Enable Timestamp Interrupt */
> > + intr_value = readl(ioaddr + GMAC_INT_EN);
> > + intr_value |= GMAC_INT_TSIE;
> > + writel(intr_value, ioaddr + GMAC_INT_EN);
> > +
> > + } else {
> > + pr_info("Auxiliary Snapshot %d disabled.\n",
> > + priv->plat->ext_snapshot_num >>
> > + PTP_ACR_ATSEN_SHIFT);
>
> dev_dbg()?
>
> Do you really want to spam the kernel log with this?
>

Thanks for the review.
I will switch this to netdev_dbg().


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