linux-kernel - RE: [PATCH net-next 1/2] rtase: Link IRQs to NAPI instances

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Message-ID: <72547c5443424151860d808616fdcc23@realtek.com>
Date: Thu, 12 Jun 2025 03:13:32 +0000
From: Justin Lai <justinlai0215@...ltek.com>
To: Joe Damato <joe@...a.to>
CC: "kuba@...nel.org" <kuba@...nel.org>,
        "davem@...emloft.net"
	<davem@...emloft.net>,
        "edumazet@...gle.com" <edumazet@...gle.com>,
        "pabeni@...hat.com" <pabeni@...hat.com>,
        "andrew+netdev@...n.ch"
	<andrew+netdev@...n.ch>,
        "linux-kernel@...r.kernel.org"
	<linux-kernel@...r.kernel.org>,
        "netdev@...r.kernel.org"
	<netdev@...r.kernel.org>,
        "horms@...nel.org" <horms@...nel.org>,
        "jdamato@...tly.com" <jdamato@...tly.com>,
        Ping-Ke Shih <pkshih@...ltek.com>, Larry Chiu <larry.chiu@...ltek.com>
Subject: RE: [PATCH net-next 1/2] rtase: Link IRQs to NAPI instances

> On Tue, Jun 10, 2025 at 06:33:33PM +0800, Justin Lai wrote:
> > Link IRQs to NAPI instances with netif_napi_set_irq. This information
> > can be queried with the netdev-genl API.
> >
> > Signed-off-by: Justin Lai <justinlai0215@...ltek.com>
> > ---
> >  .../net/ethernet/realtek/rtase/rtase_main.c   | 20 +++++++++++++------
> >  1 file changed, 14 insertions(+), 6 deletions(-)
> >
> > diff --git a/drivers/net/ethernet/realtek/rtase/rtase_main.c
> > b/drivers/net/ethernet/realtek/rtase/rtase_main.c
> > index 4d37217e9a14..a88af868da8c 100644
> > --- a/drivers/net/ethernet/realtek/rtase/rtase_main.c
> > +++ b/drivers/net/ethernet/realtek/rtase/rtase_main.c
> > @@ -1871,6 +1871,18 @@ static void rtase_init_netdev_ops(struct
> net_device *dev)
> >       dev->ethtool_ops = &rtase_ethtool_ops;  }
> >
> > +static void rtase_init_napi(struct rtase_private *tp) {
> > +     u16 i;
> > +
> > +     for (i = 0; i < tp->int_nums; i++) {
> > +             netif_napi_add(tp->dev, &tp->int_vector[i].napi,
> > +                            tp->int_vector[i].poll);
> 
> Maybe netif_napi_add_config can be used either in this patch or in an added
> 3rd patch to this series to support persitent NAPI config?
> 
> Otherwise:
> 
> Reviewed-by: Joe Damato <joe@...a.to>

Hi Joe,

Thank you for your suggestion. I will make the change in this patch in v2.

Thanks,
Justin
> 
> > +             netif_napi_set_irq(&tp->int_vector[i].napi,
> > +                                tp->int_vector[i].irq);
> > +     }
> > +}
> > +
> >  static void rtase_reset_interrupt(struct pci_dev *pdev,
> >                                 const struct rtase_private *tp)
> { @@
> > -1956,9 +1968,6 @@ static void rtase_init_int_vector(struct rtase_private
> *tp)
> >       memset(tp->int_vector[0].name, 0x0,
> sizeof(tp->int_vector[0].name));
> >       INIT_LIST_HEAD(&tp->int_vector[0].ring_list);
> >
> > -     netif_napi_add(tp->dev, &tp->int_vector[0].napi,
> > -                    tp->int_vector[0].poll);
> > -
> >       /* interrupt vector 1 ~ 3 */
> >       for (i = 1; i < tp->int_nums; i++) {
> >               tp->int_vector[i].tp = tp; @@ -1972,9 +1981,6 @@ static
> > void rtase_init_int_vector(struct rtase_private *tp)
> >               memset(tp->int_vector[i].name, 0x0,
> >                      sizeof(tp->int_vector[0].name));
> >               INIT_LIST_HEAD(&tp->int_vector[i].ring_list);
> > -
> > -             netif_napi_add(tp->dev, &tp->int_vector[i].napi,
> > -                            tp->int_vector[i].poll);
> >       }
> >  }
> >
> > @@ -2206,6 +2212,8 @@ static int rtase_init_one(struct pci_dev *pdev,
> >               goto err_out_del_napi;
> >       }
> >
> > +     rtase_init_napi(tp);
> > +
> >       rtase_init_netdev_ops(dev);
> >
> >       dev->pcpu_stat_type = NETDEV_PCPU_STAT_TSTATS;
> > --
> > 2.34.1
> >
> >