Ping-Ke Shih <pkshih@xxxxxxxxxxx> wrote:
> Sean Anderson <sean.anderson@xxxxxxxxx> wrote:
> > There are more unsupported functions than just LOWRT_RTY. Improve on
> > commit 3b66519b023b ("wifi: rtw89: phy: add dummy c2h handler to avoid
> > warning message") by printing a message just once when we first
> > encounter an unsupported class.
>
> Once I encounter an unsupported class/func, I'll check firmware team if the
> C2H events can be ignored. If so, I add a dummy function to avoid the message.
> If not, I should add code to handle the event.
>
> Do you want to see the message even though it only appears once?
>
> > Do the same for each unsupported func of
> > the supported classes. This prevents messages like
> >
> > rtw89_8922ae 0000:81:00.0: PHY c2h class 2 not support
Is this a real example? We have handled class 2 (RTW89_PHY_C2H_CLASS_DM), no?
Please point out the class / func you encountered. Then I can look up vendor
driver or contact internal firmware team to know if we should implement or
just add a dummy function.
If we defer it, I don't know when we can do it.
> >
> > from filling up dmesg.
> >
> > Signed-off-by: Sean Anderson <sean.anderson@xxxxxxxxx>
> > ---
> >
> > Changes in v2:
> > - Also suppress unsupported func messages
> >
> > drivers/net/wireless/realtek/rtw89/phy.c | 18 +++++++++++++++---
> > 1 file changed, 15 insertions(+), 3 deletions(-)
> >
> > diff --git a/drivers/net/wireless/realtek/rtw89/phy.c b/drivers/net/wireless/realtek/rtw89/phy.c
> > index f4eee642e5ce..9484d80eea9b 100644
> > --- a/drivers/net/wireless/realtek/rtw89/phy.c
> > +++ b/drivers/net/wireless/realtek/rtw89/phy.c
> > @@ -3535,17 +3535,25 @@ void rtw89_phy_c2h_handle(struct rtw89_dev *rtwdev, struct sk_buff *skb,
> > {
> > void (*handler)(struct rtw89_dev *rtwdev,
> > struct sk_buff *c2h, u32 len) = NULL;
> > + static DECLARE_BITMAP(printed_ra, U8_MAX);
> > + static DECLARE_BITMAP(printed_rfk_log, U8_MAX);
> > + static DECLARE_BITMAP(printed_rfk_report, U8_MAX);
> > + static DECLARE_BITMAP(printed_class, U8_MAX);
> > + unsigned long *printed;
> >
> > switch (class) {
> > case RTW89_PHY_C2H_CLASS_RA:
> > + printed = printed_ra;
> > if (func < RTW89_PHY_C2H_FUNC_RA_MAX)
> > handler = rtw89_phy_c2h_ra_handler[func];
> > break;
> > case RTW89_PHY_C2H_RFK_LOG:
> > + printed = printed_rfk_log;
> > if (func < ARRAY_SIZE(rtw89_phy_c2h_rfk_log_handler))
> > handler = rtw89_phy_c2h_rfk_log_handler[func];
> > break;
> > case RTW89_PHY_C2H_RFK_REPORT:
> > + printed = printed_rfk_report;
> > if (func < ARRAY_SIZE(rtw89_phy_c2h_rfk_report_handler))
> > handler = rtw89_phy_c2h_rfk_report_handler[func];
> > break;
> > @@ -3554,12 +3562,16 @@ void rtw89_phy_c2h_handle(struct rtw89_dev *rtwdev, struct sk_buff *skb,
> > return;
> > fallthrough;
> > default:
> > - rtw89_info(rtwdev, "PHY c2h class %d not support\n", class);
> > + if (!test_and_set_bit(class, printed_class))
> > + rtw89_info(rtwdev, "PHY c2h class %d not supported\n",
> > + class);
> > return;
> > }
> > if (!handler) {
> > - rtw89_info(rtwdev, "PHY c2h class %d func %d not support\n", class,
> > - func);
> > + if (!test_and_set_bit(func, printed))
> > + rtw89_info(rtwdev,
> > + "PHY c2h class %d func %d not supported\n",
> > + class, func);
> > return;
> > }
> > handler(rtwdev, skb, len);
> > --
> > 2.35.1.1320.gc452695387.dirty
