linux-kernel - Re: [PATCH net-next v1 12/14] net: phy: nxp-c45-tja11xx: read ext trig ts TJA1120

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Message-ID: <20230619084941.q6c26zhf4ssnseiu@soft-dev3-1>
Date:   Mon, 19 Jun 2023 10:49:41 +0200
From:   Horatiu Vultur <horatiu.vultur@...rochip.com>
To:     "Radu Pirea (NXP OSS)" <radu-nicolae.pirea@....nxp.com>
CC:     <andrew@...n.ch>, <hkallweit1@...il.com>, <linux@...linux.org.uk>,
        <davem@...emloft.net>, <edumazet@...gle.com>, <kuba@...nel.org>,
        <pabeni@...hat.com>, <richardcochran@...il.com>,
        <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <sebastian.tobuschat@....com>
Subject: Re: [PATCH net-next v1 12/14] net: phy: nxp-c45-tja11xx: read ext
 trig ts TJA1120

The 06/16/2023 16:53, Radu Pirea (NXP OSS) wrote:

Hi Radu,

> 
>  static void nxp_c45_read_egress_ts(struct nxp_c45_phy *priv,
> @@ -628,12 +648,12 @@ static long nxp_c45_do_aux_work(struct ptp_clock_info *ptp)
>         bool reschedule = false;
>         struct timespec64 ts;
>         struct sk_buff *skb;
> -       bool txts_valid;
> +       bool ts_valid;
>         u32 ts_raw;
> 
>         while (!skb_queue_empty_lockless(&priv->tx_queue) && poll_txts) {
> -               txts_valid = data->get_egressts(priv, &hwts);
> -               if (unlikely(!txts_valid)) {
> +               ts_valid = data->get_egressts(priv, &hwts);
> +               if (unlikely(!ts_valid)) {
>                         /* Still more skbs in the queue */
>                         reschedule = true;
>                         break;
> @@ -654,9 +674,9 @@ static long nxp_c45_do_aux_work(struct ptp_clock_info *ptp)
>                 netif_rx(skb);
>         }
> 
> -       if (priv->extts) {
> -               nxp_c45_get_extts(priv, &ts);
> -               if (timespec64_compare(&ts, &priv->extts_ts) != 0) {
> +       if (priv->extts && data->get_extts) {

The data->get_extts can't be null. So I don't think you need this check.

> +               ts_valid = data->get_extts(priv, &ts);
> +               if (ts_valid && timespec64_compare(&ts, &priv->extts_ts) != 0) {
>                         priv->extts_ts = ts;
>                         event.index = priv->extts_index;
>                         event.type = PTP_CLOCK_EXTTS;
> @@ -1702,6 +1722,7 @@ static const struct nxp_c45_phy_data tja1103_phy_data = {
>         .ack_ptp_irq = false,
>         .counters_enable = tja1103_counters_enable,
>         .get_egressts = nxp_c45_get_hwtxts,
> +       .get_extts = nxp_c45_get_extts,
>         .ptp_init = tja1103_ptp_init,
>         .ptp_enable = tja1103_ptp_enable,
>         .nmi_handler = tja1103_nmi_handler,
> @@ -1816,6 +1837,7 @@ static const struct nxp_c45_phy_data tja1120_phy_data = {
>         .ack_ptp_irq = true,
>         .counters_enable = tja1120_counters_enable,
>         .get_egressts = tja1120_get_hwtxts,
> +       .get_extts = tja1120_get_extts,
>         .ptp_init = tja1120_ptp_init,
>         .ptp_enable = tja1120_ptp_enable,
>         .nmi_handler = tja1120_nmi_handler,
> --
> 2.34.1
> 
> 

-- 
/Horatiu