diff mbox series

[1/2] wifi: rtl8xxxu: Clean up some messy ifs

Message ID eb152b5b-fe65-3783-a3d9-71c9cb7ef9d3@gmail.com (mailing list archive)
State Changes Requested
Delegated to: Kalle Valo
Headers show
Series [1/2] wifi: rtl8xxxu: Clean up some messy ifs | expand

Commit Message

Bitterblue Smith March 31, 2023, 8:17 p.m. UTC
Add some new members to rtl8xxxu_fileops and use them instead of
checking priv->rtl_chip.

Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>
---
 .../net/wireless/realtek/rtl8xxxu/rtl8xxxu.h  |  5 ++++
 .../realtek/rtl8xxxu/rtl8xxxu_8188e.c         |  1 +
 .../realtek/rtl8xxxu/rtl8xxxu_8188f.c         |  5 ++++
 .../realtek/rtl8xxxu/rtl8xxxu_8192e.c         |  1 +
 .../realtek/rtl8xxxu/rtl8xxxu_8710b.c         |  9 +++++++
 .../realtek/rtl8xxxu/rtl8xxxu_8723b.c         |  3 +++
 .../wireless/realtek/rtl8xxxu/rtl8xxxu_core.c | 26 +++++--------------
 7 files changed, 31 insertions(+), 19 deletions(-)

Comments

Julian Calaby April 1, 2023, 4:23 a.m. UTC | #1
Hi Bitterblue,

On Sat, Apr 1, 2023 at 7:18 AM Bitterblue Smith <rtl8821cerfe2@gmail.com> wrote:
>
> Add some new members to rtl8xxxu_fileops and use them instead of
> checking priv->rtl_chip.
>
> Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>
> ---
>  .../net/wireless/realtek/rtl8xxxu/rtl8xxxu.h  |  5 ++++
>  .../realtek/rtl8xxxu/rtl8xxxu_8188e.c         |  1 +
>  .../realtek/rtl8xxxu/rtl8xxxu_8188f.c         |  5 ++++
>  .../realtek/rtl8xxxu/rtl8xxxu_8192e.c         |  1 +
>  .../realtek/rtl8xxxu/rtl8xxxu_8710b.c         |  9 +++++++
>  .../realtek/rtl8xxxu/rtl8xxxu_8723b.c         |  3 +++
>  .../wireless/realtek/rtl8xxxu/rtl8xxxu_core.c | 26 +++++--------------
>  7 files changed, 31 insertions(+), 19 deletions(-)
>
> diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188e.c b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188e.c
> index 6a82ec47568e..af8436070ba7 100644
> --- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188e.c
> +++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188e.c
> @@ -1883,6 +1883,7 @@ struct rtl8xxxu_fileops rtl8188eu_fops = {
>         .rx_desc_size = sizeof(struct rtl8xxxu_rxdesc16),
>         .tx_desc_size = sizeof(struct rtl8xxxu_txdesc32),
>         .has_tx_report = 1,
> +       .init_reg_pkt_life_time = 1,

I'm sure it's safe, but the fops structs that don't set the
ampdu_max_time and ustime_tsf_edca values feel odd.

>         .gen2_thermal_meter = 1,
>         .adda_1t_init = 0x0b1b25a0,
>         .adda_1t_path_on = 0x0bdb25a0,
> diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188f.c b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188f.c
> index 82dee1fed477..dfb250adb168 100644
> --- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188f.c
> +++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188f.c
> @@ -1746,6 +1746,11 @@ struct rtl8xxxu_fileops rtl8188fu_fops = {
>         .has_tx_report = 1,
>         .gen2_thermal_meter = 1,
>         .needs_full_init = 1,
> +       .init_reg_rxfltmap = 1,
> +       .init_reg_pkt_life_time = 1,
> +       .init_reg_hmtfr = 1,
> +       .ampdu_max_time = 0x70,
> +       .ustime_tsf_edca = 0x28,

The original code had comments for why the 8188fu had different values
for ampdu_max_time and ustime_tsf_edca. Should they be copied here?

>         .adda_1t_init = 0x03c00014,
>         .adda_1t_path_on = 0x03c00014,
>         .trxff_boundary = 0x3f7f,

Thanks,
Bitterblue Smith April 1, 2023, 9:24 p.m. UTC | #2
On 01/04/2023 07:23, Julian Calaby wrote:
> Hi Bitterblue,
> 
> On Sat, Apr 1, 2023 at 7:18 AM Bitterblue Smith <rtl8821cerfe2@gmail.com> wrote:
>>
>> Add some new members to rtl8xxxu_fileops and use them instead of
>> checking priv->rtl_chip.
>>
>> Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>
>> ---
>>  .../net/wireless/realtek/rtl8xxxu/rtl8xxxu.h  |  5 ++++
>>  .../realtek/rtl8xxxu/rtl8xxxu_8188e.c         |  1 +
>>  .../realtek/rtl8xxxu/rtl8xxxu_8188f.c         |  5 ++++
>>  .../realtek/rtl8xxxu/rtl8xxxu_8192e.c         |  1 +
>>  .../realtek/rtl8xxxu/rtl8xxxu_8710b.c         |  9 +++++++
>>  .../realtek/rtl8xxxu/rtl8xxxu_8723b.c         |  3 +++
>>  .../wireless/realtek/rtl8xxxu/rtl8xxxu_core.c | 26 +++++--------------
>>  7 files changed, 31 insertions(+), 19 deletions(-)
>>
>> diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188e.c b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188e.c
>> index 6a82ec47568e..af8436070ba7 100644
>> --- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188e.c
>> +++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188e.c
>> @@ -1883,6 +1883,7 @@ struct rtl8xxxu_fileops rtl8188eu_fops = {
>>         .rx_desc_size = sizeof(struct rtl8xxxu_rxdesc16),
>>         .tx_desc_size = sizeof(struct rtl8xxxu_txdesc32),
>>         .has_tx_report = 1,
>> +       .init_reg_pkt_life_time = 1,
> 
> I'm sure it's safe, but the fops structs that don't set the
> ampdu_max_time and ustime_tsf_edca values feel odd.
> 
They don't set those because they don't use them. Maybe one day
I will initialise all the members -- I read somewhere that it's
good practice -- but that's not what this patch is about.

>>         .gen2_thermal_meter = 1,
>>         .adda_1t_init = 0x0b1b25a0,
>>         .adda_1t_path_on = 0x0bdb25a0,
>> diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188f.c b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188f.c
>> index 82dee1fed477..dfb250adb168 100644
>> --- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188f.c
>> +++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188f.c
>> @@ -1746,6 +1746,11 @@ struct rtl8xxxu_fileops rtl8188fu_fops = {
>>         .has_tx_report = 1,
>>         .gen2_thermal_meter = 1,
>>         .needs_full_init = 1,
>> +       .init_reg_rxfltmap = 1,
>> +       .init_reg_pkt_life_time = 1,
>> +       .init_reg_hmtfr = 1,
>> +       .ampdu_max_time = 0x70,
>> +       .ustime_tsf_edca = 0x28,
> 
> The original code had comments for why the 8188fu had different values
> for ampdu_max_time and ustime_tsf_edca. Should they be copied here?
> 
I don't know if those comments are that useful.

>>         .adda_1t_init = 0x03c00014,
>>         .adda_1t_path_on = 0x03c00014,
>>         .trxff_boundary = 0x3f7f,
> 
> Thanks,
>
Ping-Ke Shih April 6, 2023, 1:16 a.m. UTC | #3
> -----Original Message-----
> From: Bitterblue Smith <rtl8821cerfe2@gmail.com>
> Sent: Saturday, April 1, 2023 4:17 AM
> To: linux-wireless@vger.kernel.org
> Cc: Jes Sorensen <Jes.Sorensen@gmail.com>; Ping-Ke Shih <pkshih@realtek.com>
> Subject: [PATCH 1/2] wifi: rtl8xxxu: Clean up some messy ifs
> 
> Add some new members to rtl8xxxu_fileops and use them instead of
> checking priv->rtl_chip.
> 
> Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>
> ---

[...]

> diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
> b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
> index c152b228606f..62dd53a57659 100644
> --- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
> +++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
> @@ -1916,7 +1916,7 @@ static int rtl8xxxu_start_firmware(struct rtl8xxxu_priv *priv)
>         /*
>          * Init H2C command
>          */
> -       if (priv->rtl_chip == RTL8723B || priv->rtl_chip == RTL8188F || priv->rtl_chip == RTL8710B)
> +       if (priv->fops->init_reg_hmtfr)
>                 rtl8xxxu_write8(priv, REG_HMTFR, 0x0f);
>  exit:
>         return ret;
> @@ -3864,11 +3864,8 @@ void rtl8xxxu_init_burst(struct rtl8xxxu_priv *priv)
>         rtl8xxxu_write8(priv, REG_HT_SINGLE_AMPDU_8723B, val8);
> 
>         rtl8xxxu_write16(priv, REG_MAX_AGGR_NUM, 0x0c14);
> -       if (priv->rtl_chip == RTL8723B || priv->rtl_chip == RTL8710B)
> -               val8 = 0x5e;
> -       else if (priv->rtl_chip == RTL8188F)
> -               val8 = 0x70; /* 0x5e would make it very slow */
> -       rtl8xxxu_write8(priv, REG_AMPDU_MAX_TIME_8723B, val8);
> +       rtl8xxxu_write8(priv, REG_AMPDU_MAX_TIME_8723B,
> +                       priv->fops->ampdu_max_time);

Should it be 

if (priv->fops->ampdu_max_time)
    val8 = priv->fops->ampdu_max_time;

rtl8xxxu_write8(priv, REG_AMPDU_MAX_TIME_8723B, val8); // this line doesn't change?

Because originally val8 is read from REG_HT_SINGLE_AMPDU_8723B and add
HT_SINGLE_AMPDU_ENABLE bit.

... I review further and want to add similar comment. I wonder you do this
intentionally, so I find rtl8xxxu_init_burst() is only used by three chips
RTL8723B, RTL8710B and RTL8188F. I'm not sure if other people could misuse 
this function in the future, any idea?

>         rtl8xxxu_write32(priv, REG_AGGLEN_LMT, 0xffffffff);
>         rtl8xxxu_write8(priv, REG_RX_PKT_LIMIT, 0x18);
>         rtl8xxxu_write8(priv, REG_PIFS, 0x00);
> @@ -3876,16 +3873,8 @@ void rtl8xxxu_init_burst(struct rtl8xxxu_priv *priv)
>                 rtl8xxxu_write8(priv, REG_FWHW_TXQ_CTRL, FWHW_TXQ_CTRL_AMPDU_RETRY);
>                 rtl8xxxu_write32(priv, REG_FAST_EDCA_CTRL, 0x03086666);
>         }
> -       /*
> -        * The RTL8710BU vendor driver uses 0x50 here and it works fine,
> -        * but in rtl8xxxu 0x50 causes slow upload and random packet loss. Why?
> -        */
> -       if (priv->rtl_chip == RTL8723B)
> -               val8 = 0x50;
> -       else if (priv->rtl_chip == RTL8188F || priv->rtl_chip == RTL8710B)
> -               val8 = 0x28; /* 0x50 would make the upload slow */
> -       rtl8xxxu_write8(priv, REG_USTIME_TSF_8723B, val8);
> -       rtl8xxxu_write8(priv, REG_USTIME_EDCA, val8);
> +       rtl8xxxu_write8(priv, REG_USTIME_TSF_8723B, priv->fops->ustime_tsf_edca);
> +       rtl8xxxu_write8(priv, REG_USTIME_EDCA, priv->fops->ustime_tsf_edca);
> 
>         /* to prevent mac is reseted by bus. */
>         val8 = rtl8xxxu_read8(priv, REG_RSV_CTRL);
> @@ -4102,7 +4091,7 @@ static int rtl8xxxu_init_device(struct ieee80211_hw *hw)
>                 RCR_APPEND_PHYSTAT | RCR_APPEND_ICV | RCR_APPEND_MIC;
>         rtl8xxxu_write32(priv, REG_RCR, val32);
> 
> -       if (priv->rtl_chip == RTL8188F || priv->rtl_chip == RTL8710B) {
> +       if (fops->init_reg_rxfltmap) {
>                 /* Accept all data frames */
>                 rtl8xxxu_write16(priv, REG_RXFLTMAP2, 0xffff);
> 
> @@ -4187,8 +4176,7 @@ static int rtl8xxxu_init_device(struct ieee80211_hw *hw)
>         if (fops->init_aggregation)
>                 fops->init_aggregation(priv);
> 
> -       if (priv->rtl_chip == RTL8188F || priv->rtl_chip == RTL8188E ||
> -           priv->rtl_chip == RTL8710B) {
> +       if (fops->init_reg_pkt_life_time) {

Originally, 8192E doesn't do this. Just make sure you want to do it?

>                 rtl8xxxu_write16(priv, REG_PKT_VO_VI_LIFE_TIME, 0x0400); /* unit: 256us. 256ms */
>                 rtl8xxxu_write16(priv, REG_PKT_BE_BK_LIFE_TIME, 0x0400); /* unit: 256us. 256ms */
>         }
> --
> 2.39.2
> 
> ------Please consider the environment before printing this e-mail.
Bitterblue Smith April 9, 2023, 2:10 p.m. UTC | #4
On 06/04/2023 04:16, Ping-Ke Shih wrote:
> 
> 
>> -----Original Message-----
>> From: Bitterblue Smith <rtl8821cerfe2@gmail.com>
>> Sent: Saturday, April 1, 2023 4:17 AM
>> To: linux-wireless@vger.kernel.org
>> Cc: Jes Sorensen <Jes.Sorensen@gmail.com>; Ping-Ke Shih <pkshih@realtek.com>
>> Subject: [PATCH 1/2] wifi: rtl8xxxu: Clean up some messy ifs
>>
>> Add some new members to rtl8xxxu_fileops and use them instead of
>> checking priv->rtl_chip.
>>
>> Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>
>> ---
> 
> [...]
> 
>> diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
>> b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
>> index c152b228606f..62dd53a57659 100644
>> --- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
>> +++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
>> @@ -1916,7 +1916,7 @@ static int rtl8xxxu_start_firmware(struct rtl8xxxu_priv *priv)
>>         /*
>>          * Init H2C command
>>          */
>> -       if (priv->rtl_chip == RTL8723B || priv->rtl_chip == RTL8188F || priv->rtl_chip == RTL8710B)
>> +       if (priv->fops->init_reg_hmtfr)
>>                 rtl8xxxu_write8(priv, REG_HMTFR, 0x0f);
>>  exit:
>>         return ret;
>> @@ -3864,11 +3864,8 @@ void rtl8xxxu_init_burst(struct rtl8xxxu_priv *priv)
>>         rtl8xxxu_write8(priv, REG_HT_SINGLE_AMPDU_8723B, val8);
>>
>>         rtl8xxxu_write16(priv, REG_MAX_AGGR_NUM, 0x0c14);
>> -       if (priv->rtl_chip == RTL8723B || priv->rtl_chip == RTL8710B)
>> -               val8 = 0x5e;
>> -       else if (priv->rtl_chip == RTL8188F)
>> -               val8 = 0x70; /* 0x5e would make it very slow */
>> -       rtl8xxxu_write8(priv, REG_AMPDU_MAX_TIME_8723B, val8);
>> +       rtl8xxxu_write8(priv, REG_AMPDU_MAX_TIME_8723B,
>> +                       priv->fops->ampdu_max_time);
> 
> Should it be 
> 
> if (priv->fops->ampdu_max_time)
>     val8 = priv->fops->ampdu_max_time;> 
> rtl8xxxu_write8(priv, REG_AMPDU_MAX_TIME_8723B, val8); // this line doesn't change?
> 
> Because originally val8 is read from REG_HT_SINGLE_AMPDU_8723B and add
> HT_SINGLE_AMPDU_ENABLE bit.

No, the value read from REG_HT_SINGLE_AMPDU_8723B is not supposed to be
written to REG_AMPDU_MAX_TIME_8723B. And it never was, because only
RTL8723B, RTL8710B, and RTL8188F use this function. This was clearer in
the original version of the code, when it was used only by RTL8723B:

		val8 = rtl8xxxu_read8(priv, REG_HT_SINGLE_AMPDU_8723B);
		val8 |= BIT(7);
		rtl8xxxu_write8(priv, REG_HT_SINGLE_AMPDU_8723B, val8);

		rtl8xxxu_write16(priv, REG_MAX_AGGR_NUM, 0x0c14);
		rtl8xxxu_write8(priv, REG_AMPDU_MAX_TIME_8723B, 0x5e);

> 
> ... I review further and want to add similar comment. I wonder you do this
> intentionally, so I find rtl8xxxu_init_burst() is only used by three chips
> RTL8723B, RTL8710B and RTL8188F. I'm not sure if other people could misuse 
> this function in the future, any idea?
> 

That will be their own mistake. :)

>>         rtl8xxxu_write32(priv, REG_AGGLEN_LMT, 0xffffffff);
>>         rtl8xxxu_write8(priv, REG_RX_PKT_LIMIT, 0x18);
>>         rtl8xxxu_write8(priv, REG_PIFS, 0x00);
>> @@ -3876,16 +3873,8 @@ void rtl8xxxu_init_burst(struct rtl8xxxu_priv *priv)
>>                 rtl8xxxu_write8(priv, REG_FWHW_TXQ_CTRL, FWHW_TXQ_CTRL_AMPDU_RETRY);
>>                 rtl8xxxu_write32(priv, REG_FAST_EDCA_CTRL, 0x03086666);
>>         }
>> -       /*
>> -        * The RTL8710BU vendor driver uses 0x50 here and it works fine,
>> -        * but in rtl8xxxu 0x50 causes slow upload and random packet loss. Why?
>> -        */
>> -       if (priv->rtl_chip == RTL8723B)
>> -               val8 = 0x50;
>> -       else if (priv->rtl_chip == RTL8188F || priv->rtl_chip == RTL8710B)
>> -               val8 = 0x28; /* 0x50 would make the upload slow */
>> -       rtl8xxxu_write8(priv, REG_USTIME_TSF_8723B, val8);
>> -       rtl8xxxu_write8(priv, REG_USTIME_EDCA, val8);
>> +       rtl8xxxu_write8(priv, REG_USTIME_TSF_8723B, priv->fops->ustime_tsf_edca);
>> +       rtl8xxxu_write8(priv, REG_USTIME_EDCA, priv->fops->ustime_tsf_edca);
>>
>>         /* to prevent mac is reseted by bus. */
>>         val8 = rtl8xxxu_read8(priv, REG_RSV_CTRL);
>> @@ -4102,7 +4091,7 @@ static int rtl8xxxu_init_device(struct ieee80211_hw *hw)
>>                 RCR_APPEND_PHYSTAT | RCR_APPEND_ICV | RCR_APPEND_MIC;
>>         rtl8xxxu_write32(priv, REG_RCR, val32);
>>
>> -       if (priv->rtl_chip == RTL8188F || priv->rtl_chip == RTL8710B) {
>> +       if (fops->init_reg_rxfltmap) {
>>                 /* Accept all data frames */
>>                 rtl8xxxu_write16(priv, REG_RXFLTMAP2, 0xffff);
>>
>> @@ -4187,8 +4176,7 @@ static int rtl8xxxu_init_device(struct ieee80211_hw *hw)
>>         if (fops->init_aggregation)
>>                 fops->init_aggregation(priv);
>>
>> -       if (priv->rtl_chip == RTL8188F || priv->rtl_chip == RTL8188E ||
>> -           priv->rtl_chip == RTL8710B) {
>> +       if (fops->init_reg_pkt_life_time) {
> 
> Originally, 8192E doesn't do this. Just make sure you want to do it?
> 

I did want to do it. The RTL8192EU driver sets those registers. But
maybe that change should be in a separate patch. I'll send v2 where
RTL8192E doesn't set init_reg_pkt_life_time.

>>                 rtl8xxxu_write16(priv, REG_PKT_VO_VI_LIFE_TIME, 0x0400); /* unit: 256us. 256ms */
>>                 rtl8xxxu_write16(priv, REG_PKT_BE_BK_LIFE_TIME, 0x0400); /* unit: 256us. 256ms */
>>         }
>> --
>> 2.39.2
>>
>> ------Please consider the environment before printing this e-mail.
Ping-Ke Shih April 10, 2023, 12:20 a.m. UTC | #5
> -----Original Message-----
> From: Bitterblue Smith <rtl8821cerfe2@gmail.com>
> Sent: Sunday, April 9, 2023 10:11 PM
> To: Ping-Ke Shih <pkshih@realtek.com>; linux-wireless@vger.kernel.org
> Cc: Jes Sorensen <Jes.Sorensen@gmail.com>
> Subject: Re: [PATCH 1/2] wifi: rtl8xxxu: Clean up some messy ifs
> 
> On 06/04/2023 04:16, Ping-Ke Shih wrote:
> >
> >
> >> -----Original Message-----
> >> From: Bitterblue Smith <rtl8821cerfe2@gmail.com>
> >> Sent: Saturday, April 1, 2023 4:17 AM
> >> To: linux-wireless@vger.kernel.org
> >> Cc: Jes Sorensen <Jes.Sorensen@gmail.com>; Ping-Ke Shih <pkshih@realtek.com>
> >> Subject: [PATCH 1/2] wifi: rtl8xxxu: Clean up some messy ifs
> >>
> >> Add some new members to rtl8xxxu_fileops and use them instead of
> >> checking priv->rtl_chip.
> >>
> >> Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>
> >> ---
> >
> > [...]
> >
> >> diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
> >> b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
> >> index c152b228606f..62dd53a57659 100644
> >> --- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
> >> +++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
> >> @@ -1916,7 +1916,7 @@ static int rtl8xxxu_start_firmware(struct rtl8xxxu_priv *priv)
> >>         /*
> >>          * Init H2C command
> >>          */
> >> -       if (priv->rtl_chip == RTL8723B || priv->rtl_chip == RTL8188F || priv->rtl_chip == RTL8710B)
> >> +       if (priv->fops->init_reg_hmtfr)
> >>                 rtl8xxxu_write8(priv, REG_HMTFR, 0x0f);
> >>  exit:
> >>         return ret;
> >> @@ -3864,11 +3864,8 @@ void rtl8xxxu_init_burst(struct rtl8xxxu_priv *priv)
> >>         rtl8xxxu_write8(priv, REG_HT_SINGLE_AMPDU_8723B, val8);
> >>
> >>         rtl8xxxu_write16(priv, REG_MAX_AGGR_NUM, 0x0c14);
> >> -       if (priv->rtl_chip == RTL8723B || priv->rtl_chip == RTL8710B)
> >> -               val8 = 0x5e;
> >> -       else if (priv->rtl_chip == RTL8188F)
> >> -               val8 = 0x70; /* 0x5e would make it very slow */
> >> -       rtl8xxxu_write8(priv, REG_AMPDU_MAX_TIME_8723B, val8);
> >> +       rtl8xxxu_write8(priv, REG_AMPDU_MAX_TIME_8723B,
> >> +                       priv->fops->ampdu_max_time);
> >
> > Should it be
> >
> > if (priv->fops->ampdu_max_time)
> >     val8 = priv->fops->ampdu_max_time;>
> > rtl8xxxu_write8(priv, REG_AMPDU_MAX_TIME_8723B, val8); // this line doesn't change?
> >
> > Because originally val8 is read from REG_HT_SINGLE_AMPDU_8723B and add
> > HT_SINGLE_AMPDU_ENABLE bit.
> 
> No, the value read from REG_HT_SINGLE_AMPDU_8723B is not supposed to be
> written to REG_AMPDU_MAX_TIME_8723B. And it never was, because only
> RTL8723B, RTL8710B, and RTL8188F use this function. This was clearer in
> the original version of the code, when it was used only by RTL8723B:
> 
>                 val8 = rtl8xxxu_read8(priv, REG_HT_SINGLE_AMPDU_8723B);
>                 val8 |= BIT(7);
>                 rtl8xxxu_write8(priv, REG_HT_SINGLE_AMPDU_8723B, val8);
> 
>                 rtl8xxxu_write16(priv, REG_MAX_AGGR_NUM, 0x0c14);
>                 rtl8xxxu_write8(priv, REG_AMPDU_MAX_TIME_8723B, 0x5e);
> 

Oops. Somehow I misunderstood the code. Sorry for the noise.
diff mbox series

Patch

diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h
index 9d48c69ffece..39fee07917e7 100644
--- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h
+++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h
@@ -1923,6 +1923,11 @@  struct rtl8xxxu_fileops {
 	u8 has_tx_report:1;
 	u8 gen2_thermal_meter:1;
 	u8 needs_full_init:1;
+	u8 init_reg_rxfltmap:1;
+	u8 init_reg_pkt_life_time:1;
+	u8 init_reg_hmtfr:1;
+	u8 ampdu_max_time;
+	u8 ustime_tsf_edca;
 	u32 adda_1t_init;
 	u32 adda_1t_path_on;
 	u32 adda_2t_path_on_a;
diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188e.c b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188e.c
index 6a82ec47568e..af8436070ba7 100644
--- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188e.c
+++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188e.c
@@ -1883,6 +1883,7 @@  struct rtl8xxxu_fileops rtl8188eu_fops = {
 	.rx_desc_size = sizeof(struct rtl8xxxu_rxdesc16),
 	.tx_desc_size = sizeof(struct rtl8xxxu_txdesc32),
 	.has_tx_report = 1,
+	.init_reg_pkt_life_time = 1,
 	.gen2_thermal_meter = 1,
 	.adda_1t_init = 0x0b1b25a0,
 	.adda_1t_path_on = 0x0bdb25a0,
diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188f.c b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188f.c
index 82dee1fed477..dfb250adb168 100644
--- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188f.c
+++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188f.c
@@ -1746,6 +1746,11 @@  struct rtl8xxxu_fileops rtl8188fu_fops = {
 	.has_tx_report = 1,
 	.gen2_thermal_meter = 1,
 	.needs_full_init = 1,
+	.init_reg_rxfltmap = 1,
+	.init_reg_pkt_life_time = 1,
+	.init_reg_hmtfr = 1,
+	.ampdu_max_time = 0x70,
+	.ustime_tsf_edca = 0x28,
 	.adda_1t_init = 0x03c00014,
 	.adda_1t_path_on = 0x03c00014,
 	.trxff_boundary = 0x3f7f,
diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8192e.c b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8192e.c
index 4498748164af..9581e858a9c5 100644
--- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8192e.c
+++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8192e.c
@@ -1821,6 +1821,7 @@  struct rtl8xxxu_fileops rtl8192eu_fops = {
 	.has_s0s1 = 0,
 	.gen2_thermal_meter = 1,
 	.needs_full_init = 1,
+	.init_reg_pkt_life_time = 1,
 	.adda_1t_init = 0x0fc01616,
 	.adda_1t_path_on = 0x0fc01616,
 	.adda_2t_path_on_a = 0x0fc01616,
diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8710b.c b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8710b.c
index 920466e39604..22d4704dd31e 100644
--- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8710b.c
+++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8710b.c
@@ -1865,6 +1865,15 @@  struct rtl8xxxu_fileops rtl8710bu_fops = {
 	.has_tx_report = 1,
 	.gen2_thermal_meter = 1,
 	.needs_full_init = 1,
+	.init_reg_rxfltmap = 1,
+	.init_reg_pkt_life_time = 1,
+	.init_reg_hmtfr = 1,
+	.ampdu_max_time = 0x5e,
+	/*
+	 * The RTL8710BU vendor driver uses 0x50 here and it works fine,
+	 * but in rtl8xxxu 0x50 causes slow upload and random packet loss. Why?
+	 */
+	.ustime_tsf_edca = 0x28,
 	.adda_1t_init = 0x03c00016,
 	.adda_1t_path_on = 0x03c00016,
 	.trxff_boundary = 0x3f7f,
diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8723b.c b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8723b.c
index d99538eb8398..c31c2b52ac77 100644
--- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8723b.c
+++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8723b.c
@@ -1741,6 +1741,9 @@  struct rtl8xxxu_fileops rtl8723bu_fops = {
 	.has_tx_report = 1,
 	.gen2_thermal_meter = 1,
 	.needs_full_init = 1,
+	.init_reg_hmtfr = 1,
+	.ampdu_max_time = 0x5e,
+	.ustime_tsf_edca = 0x50,
 	.adda_1t_init = 0x01c00014,
 	.adda_1t_path_on = 0x01c00014,
 	.adda_2t_path_on_a = 0x01c00014,
diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
index c152b228606f..62dd53a57659 100644
--- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
+++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
@@ -1916,7 +1916,7 @@  static int rtl8xxxu_start_firmware(struct rtl8xxxu_priv *priv)
 	/*
 	 * Init H2C command
 	 */
-	if (priv->rtl_chip == RTL8723B || priv->rtl_chip == RTL8188F || priv->rtl_chip == RTL8710B)
+	if (priv->fops->init_reg_hmtfr)
 		rtl8xxxu_write8(priv, REG_HMTFR, 0x0f);
 exit:
 	return ret;
@@ -3864,11 +3864,8 @@  void rtl8xxxu_init_burst(struct rtl8xxxu_priv *priv)
 	rtl8xxxu_write8(priv, REG_HT_SINGLE_AMPDU_8723B, val8);
 
 	rtl8xxxu_write16(priv, REG_MAX_AGGR_NUM, 0x0c14);
-	if (priv->rtl_chip == RTL8723B || priv->rtl_chip == RTL8710B)
-		val8 = 0x5e;
-	else if (priv->rtl_chip == RTL8188F)
-		val8 = 0x70; /* 0x5e would make it very slow */
-	rtl8xxxu_write8(priv, REG_AMPDU_MAX_TIME_8723B, val8);
+	rtl8xxxu_write8(priv, REG_AMPDU_MAX_TIME_8723B,
+			priv->fops->ampdu_max_time);
 	rtl8xxxu_write32(priv, REG_AGGLEN_LMT, 0xffffffff);
 	rtl8xxxu_write8(priv, REG_RX_PKT_LIMIT, 0x18);
 	rtl8xxxu_write8(priv, REG_PIFS, 0x00);
@@ -3876,16 +3873,8 @@  void rtl8xxxu_init_burst(struct rtl8xxxu_priv *priv)
 		rtl8xxxu_write8(priv, REG_FWHW_TXQ_CTRL, FWHW_TXQ_CTRL_AMPDU_RETRY);
 		rtl8xxxu_write32(priv, REG_FAST_EDCA_CTRL, 0x03086666);
 	}
-	/*
-	 * The RTL8710BU vendor driver uses 0x50 here and it works fine,
-	 * but in rtl8xxxu 0x50 causes slow upload and random packet loss. Why?
-	 */
-	if (priv->rtl_chip == RTL8723B)
-		val8 = 0x50;
-	else if (priv->rtl_chip == RTL8188F || priv->rtl_chip == RTL8710B)
-		val8 = 0x28; /* 0x50 would make the upload slow */
-	rtl8xxxu_write8(priv, REG_USTIME_TSF_8723B, val8);
-	rtl8xxxu_write8(priv, REG_USTIME_EDCA, val8);
+	rtl8xxxu_write8(priv, REG_USTIME_TSF_8723B, priv->fops->ustime_tsf_edca);
+	rtl8xxxu_write8(priv, REG_USTIME_EDCA, priv->fops->ustime_tsf_edca);
 
 	/* to prevent mac is reseted by bus. */
 	val8 = rtl8xxxu_read8(priv, REG_RSV_CTRL);
@@ -4102,7 +4091,7 @@  static int rtl8xxxu_init_device(struct ieee80211_hw *hw)
 		RCR_APPEND_PHYSTAT | RCR_APPEND_ICV | RCR_APPEND_MIC;
 	rtl8xxxu_write32(priv, REG_RCR, val32);
 
-	if (priv->rtl_chip == RTL8188F || priv->rtl_chip == RTL8710B) {
+	if (fops->init_reg_rxfltmap) {
 		/* Accept all data frames */
 		rtl8xxxu_write16(priv, REG_RXFLTMAP2, 0xffff);
 
@@ -4187,8 +4176,7 @@  static int rtl8xxxu_init_device(struct ieee80211_hw *hw)
 	if (fops->init_aggregation)
 		fops->init_aggregation(priv);
 
-	if (priv->rtl_chip == RTL8188F || priv->rtl_chip == RTL8188E ||
-	    priv->rtl_chip == RTL8710B) {
+	if (fops->init_reg_pkt_life_time) {
 		rtl8xxxu_write16(priv, REG_PKT_VO_VI_LIFE_TIME, 0x0400); /* unit: 256us. 256ms */
 		rtl8xxxu_write16(priv, REG_PKT_BE_BK_LIFE_TIME, 0x0400); /* unit: 256us. 256ms */
 	}