2024-02-22 06:44:09

by Ping-Ke Shih

[permalink] [raw]
Subject: [PATCH 0/3] wifi: rtw89: update scan features, EHT beamforming capability and PCI setting

Some missing stuff are found during verification, update them accordingly.

The remaining patches to enable 8922AE (WiFi 7) are BT coexistence and
WoWLAN stuffs, and I will provide patches in coming weeks.

Chin-Yen Lee (1):
wifi: rtw89: pci: implement PCI CLK/ASPM/L1SS for WiFi 7 chips

Kuan-Chung Chen (2):
wifi: rtw89: advertise missing extended scan feature
wifi: rtw89: Update EHT PHY beamforming capability

drivers/net/wireless/realtek/rtw89/core.c | 10 ++--
drivers/net/wireless/realtek/rtw89/fw.c | 4 +-
drivers/net/wireless/realtek/rtw89/pci.c | 50 ++++++++++++++++----
drivers/net/wireless/realtek/rtw89/pci.h | 30 ++++++++++++
drivers/net/wireless/realtek/rtw89/pci_be.c | 52 +++++++++++++++++++++
5 files changed, 129 insertions(+), 17 deletions(-)

--
2.25.1



2024-02-22 06:44:10

by Ping-Ke Shih

[permalink] [raw]
Subject: [PATCH 2/3] wifi: rtw89: Update EHT PHY beamforming capability

From: Kuan-Chung Chen <[email protected]>

Adjust beamforming capabilities to accurately reflect the supported
EHT features by WiFi 7 chip 8922A. It includes 1) Unset EHT CQI
feedback and 16-subcarrier grouping. 2) Correct Beamformee SS value.
3) Enable partial and full bandwidth SU/MU feedback.

Signed-off-by: Kuan-Chung Chen <[email protected]>
Signed-off-by: Ping-Ke Shih <[email protected]>
---
drivers/net/wireless/realtek/rtw89/core.c | 8 +++-----
1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/net/wireless/realtek/rtw89/core.c b/drivers/net/wireless/realtek/rtw89/core.c
index d4bca8cd08f2..d474b8d5df3d 100644
--- a/drivers/net/wireless/realtek/rtw89/core.c
+++ b/drivers/net/wireless/realtek/rtw89/core.c
@@ -3801,7 +3801,7 @@ static void rtw89_init_eht_cap(struct rtw89_dev *rtwdev,
struct ieee80211_sta_eht_cap *eht_cap;
struct rtw89_hal *hal = &rtwdev->hal;
bool support_320mhz = false;
- int sts = 3;
+ int sts = 8;
u8 val;

if (chip->chip_gen == RTW89_CHIP_AX)
@@ -3845,18 +3845,16 @@ static void rtw89_init_eht_cap(struct rtw89_dev *rtwdev,
eht_cap_elem->phy_cap_info[2] = 0;

eht_cap_elem->phy_cap_info[3] =
- IEEE80211_EHT_PHY_CAP3_NG_16_SU_FEEDBACK |
- IEEE80211_EHT_PHY_CAP3_NG_16_MU_FEEDBACK |
IEEE80211_EHT_PHY_CAP3_CODEBOOK_4_2_SU_FDBK |
IEEE80211_EHT_PHY_CAP3_CODEBOOK_7_5_MU_FDBK |
- IEEE80211_EHT_PHY_CAP3_TRIG_CQI_FDBK;
+ IEEE80211_EHT_PHY_CAP3_TRIG_SU_BF_FDBK |
+ IEEE80211_EHT_PHY_CAP3_TRIG_MU_BF_PART_BW_FDBK;

eht_cap_elem->phy_cap_info[4] =
IEEE80211_EHT_PHY_CAP4_POWER_BOOST_FACT_SUPP |
u8_encode_bits(1, IEEE80211_EHT_PHY_CAP4_MAX_NC_MASK);

eht_cap_elem->phy_cap_info[5] =
- IEEE80211_EHT_PHY_CAP5_NON_TRIG_CQI_FEEDBACK |
u8_encode_bits(IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_20US,
IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_MASK);

--
2.25.1


2024-02-22 06:44:20

by Ping-Ke Shih

[permalink] [raw]
Subject: [PATCH 3/3] wifi: rtw89: pci: implement PCI CLK/ASPM/L1SS for WiFi 7 chips

From: Chin-Yen Lee <[email protected]>

PCI CLK/ASPM/L1SS is power management mechanism used to reduce power
consumption of PCI chip. The registers for setting of these features
in WiFi 7 Chip are different from WiFi 6 chip, so separate them
in generation information.

Signed-off-by: Chin-Yen Lee <[email protected]>
Signed-off-by: Ping-Ke Shih <[email protected]>
---
drivers/net/wireless/realtek/rtw89/pci.c | 50 ++++++++++++++++----
drivers/net/wireless/realtek/rtw89/pci.h | 30 ++++++++++++
drivers/net/wireless/realtek/rtw89/pci_be.c | 52 +++++++++++++++++++++
3 files changed, 122 insertions(+), 10 deletions(-)

diff --git a/drivers/net/wireless/realtek/rtw89/pci.c b/drivers/net/wireless/realtek/rtw89/pci.c
index 67d7294e488a..d4c8799d6f2e 100644
--- a/drivers/net/wireless/realtek/rtw89/pci.c
+++ b/drivers/net/wireless/realtek/rtw89/pci.c
@@ -3652,12 +3652,20 @@ static int rtw89_pci_filter_out(struct rtw89_dev *rtwdev)

static void rtw89_pci_clkreq_set(struct rtw89_dev *rtwdev, bool enable)
{
- enum rtw89_core_chip_id chip_id = rtwdev->chip->chip_id;
- int ret;
+ const struct rtw89_pci_info *info = rtwdev->pci_info;
+ const struct rtw89_pci_gen_def *gen_def = info->gen_def;

if (rtw89_pci_disable_clkreq)
return;

+ gen_def->clkreq_set(rtwdev, enable);
+}
+
+static void rtw89_pci_clkreq_set_ax(struct rtw89_dev *rtwdev, bool enable)
+{
+ enum rtw89_core_chip_id chip_id = rtwdev->chip->chip_id;
+ int ret;
+
ret = rtw89_pci_write_config_byte(rtwdev, RTW89_PCIE_CLK_CTRL,
PCIE_CLKDLY_HW_30US);
if (ret)
@@ -3689,24 +3697,31 @@ static void rtw89_pci_clkreq_set(struct rtw89_dev *rtwdev, bool enable)

static void rtw89_pci_aspm_set(struct rtw89_dev *rtwdev, bool enable)
{
- enum rtw89_core_chip_id chip_id = rtwdev->chip->chip_id;
- u8 value = 0;
- int ret;
+ const struct rtw89_pci_info *info = rtwdev->pci_info;
+ const struct rtw89_pci_gen_def *gen_def = info->gen_def;

if (rtw89_pci_disable_aspm_l1)
return;

+ gen_def->aspm_set(rtwdev, enable);
+}
+
+static void rtw89_pci_aspm_set_ax(struct rtw89_dev *rtwdev, bool enable)
+{
+ enum rtw89_core_chip_id chip_id = rtwdev->chip->chip_id;
+ u8 value = 0;
+ int ret;
+
ret = rtw89_pci_read_config_byte(rtwdev, RTW89_PCIE_ASPM_CTRL, &value);
if (ret)
- rtw89_err(rtwdev, "failed to read ASPM Delay\n");
+ rtw89_warn(rtwdev, "failed to read ASPM Delay\n");

- value &= ~(RTW89_L1DLY_MASK | RTW89_L0DLY_MASK);
- value |= FIELD_PREP(RTW89_L1DLY_MASK, PCIE_L1DLY_16US) |
- FIELD_PREP(RTW89_L0DLY_MASK, PCIE_L0SDLY_4US);
+ u8p_replace_bits(&value, PCIE_L1DLY_16US, RTW89_L1DLY_MASK);
+ u8p_replace_bits(&value, PCIE_L0SDLY_4US, RTW89_L0DLY_MASK);

ret = rtw89_pci_write_config_byte(rtwdev, RTW89_PCIE_ASPM_CTRL, value);
if (ret)
- rtw89_err(rtwdev, "failed to read ASPM Delay\n");
+ rtw89_warn(rtwdev, "failed to read ASPM Delay\n");

if (chip_id == RTL8852A || chip_id == RTL8852B || chip_id == RTL8851B) {
if (enable)
@@ -3792,6 +3807,17 @@ static void rtw89_pci_link_cfg(struct rtw89_dev *rtwdev)
}

static void rtw89_pci_l1ss_set(struct rtw89_dev *rtwdev, bool enable)
+{
+ const struct rtw89_pci_info *info = rtwdev->pci_info;
+ const struct rtw89_pci_gen_def *gen_def = info->gen_def;
+
+ if (rtw89_pci_disable_l1ss)
+ return;
+
+ gen_def->l1ss_set(rtwdev, enable);
+}
+
+static void rtw89_pci_l1ss_set_ax(struct rtw89_dev *rtwdev, bool enable)
{
enum rtw89_core_chip_id chip_id = rtwdev->chip->chip_id;
int ret;
@@ -4066,6 +4092,10 @@ const struct rtw89_pci_gen_def rtw89_pci_gen_ax = {

.lv1rst_stop_dma = rtw89_pci_lv1rst_stop_dma_ax,
.lv1rst_start_dma = rtw89_pci_lv1rst_start_dma_ax,
+
+ .aspm_set = rtw89_pci_aspm_set_ax,
+ .clkreq_set = rtw89_pci_clkreq_set_ax,
+ .l1ss_set = rtw89_pci_l1ss_set_ax,
};
EXPORT_SYMBOL(rtw89_pci_gen_ax);

diff --git a/drivers/net/wireless/realtek/rtw89/pci.h b/drivers/net/wireless/realtek/rtw89/pci.h
index 532f78eaf6df..c1954cb12030 100644
--- a/drivers/net/wireless/realtek/rtw89/pci.h
+++ b/drivers/net/wireless/realtek/rtw89/pci.h
@@ -282,6 +282,21 @@
#define B_BE_PCIE_EN_SWENT_L23 BIT(1)
#define B_BE_SEL_REQ_EXIT_L1 BIT(0)

+#define R_BE_PCIE_MIX_CFG 0x300C
+#define B_BE_L1SS_TIMEOUT_CTRL BIT(18)
+#define B_BE_ASPM_CTRL_L1 BIT(17)
+#define B_BE_ASPM_CTRL_L0 BIT(16)
+#define B_BE_XFER_PENDING_FW BIT(11)
+#define B_BE_XFER_PENDING BIT(10)
+#define B_BE_REQ_EXIT_L1 BIT(9)
+#define B_BE_REQ_ENTR_L1 BIT(8)
+#define B_BE_L1SUB_ENABLE BIT(0)
+
+#define R_BE_L1_CLK_CTRL 0x3010
+#define B_BE_RAS_SD_HOLD_LTSSM BIT(12)
+#define B_BE_CLK_REQ_N BIT(1)
+#define B_BE_CLK_PM_EN BIT(0)
+
#define R_BE_PCIE_LAT_CTRL 0x3044
#define B_BE_ELBI_PHY_REMAP_MASK GENMASK(29, 24)
#define B_BE_SYS_SUS_L12_EN BIT(17)
@@ -290,6 +305,8 @@
#define B_BE_RTK_LDO_POWER_LATENCY_MASK GENMASK(11, 10)
#define B_BE_RTK_LDO_BIAS_LATENCY_MASK GENMASK(9, 8)
#define B_BE_CLK_REQ_LAT_MASK GENMASK(7, 4)
+#define B_BE_RTK_PM_SEL_OPT BIT(1)
+#define B_BE_CLK_REQ_SEL BIT(0)

#define R_BE_PCIE_HIMR0 0x30B0
#define B_BE_PCIE_HB1_IND_INTA_IMR BIT(31)
@@ -1066,6 +1083,15 @@ enum rtw89_pcie_clkdly_hw {
PCIE_CLKDLY_HW_200US = 0x5,
};

+enum rtw89_pcie_clkdly_hw_v1 {
+ PCIE_CLKDLY_HW_V1_0 = 0,
+ PCIE_CLKDLY_HW_V1_16US = 0x1,
+ PCIE_CLKDLY_HW_V1_32US = 0x2,
+ PCIE_CLKDLY_HW_V1_64US = 0x3,
+ PCIE_CLKDLY_HW_V1_80US = 0x4,
+ PCIE_CLKDLY_HW_V1_96US = 0x5,
+};
+
enum mac_ax_bd_trunc_mode {
MAC_AX_BD_NORM,
MAC_AX_BD_TRUNC,
@@ -1216,6 +1242,10 @@ struct rtw89_pci_gen_def {

int (*lv1rst_stop_dma)(struct rtw89_dev *rtwdev);
int (*lv1rst_start_dma)(struct rtw89_dev *rtwdev);
+
+ void (*aspm_set)(struct rtw89_dev *rtwdev, bool enable);
+ void (*clkreq_set)(struct rtw89_dev *rtwdev, bool enable);
+ void (*l1ss_set)(struct rtw89_dev *rtwdev, bool enable);
};

struct rtw89_pci_info {
diff --git a/drivers/net/wireless/realtek/rtw89/pci_be.c b/drivers/net/wireless/realtek/rtw89/pci_be.c
index 5c9e39357773..0276d5d05925 100644
--- a/drivers/net/wireless/realtek/rtw89/pci_be.c
+++ b/drivers/net/wireless/realtek/rtw89/pci_be.c
@@ -19,6 +19,54 @@ enum pcie_rxbd_mode {
#define PL0_TMR_MAC_1MS 0x27100
#define PL0_TMR_AUX_1MS 0x1E848

+static void rtw89_pci_aspm_set_be(struct rtw89_dev *rtwdev, bool enable)
+{
+ struct rtw89_pci *rtwpci = (struct rtw89_pci *)rtwdev->priv;
+ struct pci_dev *pdev = rtwpci->pdev;
+ u8 value = 0;
+ int ret;
+
+ ret = pci_read_config_byte(pdev, RTW89_PCIE_ASPM_CTRL, &value);
+ if (ret)
+ rtw89_warn(rtwdev, "failed to read ASPM Delay\n");
+
+ u8p_replace_bits(&value, PCIE_L1DLY_16US, RTW89_L1DLY_MASK);
+
+ ret = pci_write_config_byte(pdev, RTW89_PCIE_ASPM_CTRL, value);
+ if (ret)
+ rtw89_warn(rtwdev, "failed to write ASPM Delay\n");
+
+ if (enable)
+ rtw89_write32_set(rtwdev, R_AX_PCIE_MIX_CFG_V1,
+ B_BE_ASPM_CTRL_L1);
+ else
+ rtw89_write32_clr(rtwdev, R_AX_PCIE_MIX_CFG_V1,
+ B_BE_ASPM_CTRL_L1);
+}
+
+static void rtw89_pci_l1ss_set_be(struct rtw89_dev *rtwdev, bool enable)
+{
+ if (enable)
+ rtw89_write32_set(rtwdev, R_BE_PCIE_MIX_CFG,
+ B_BE_L1SUB_ENABLE);
+ else
+ rtw89_write32_clr(rtwdev, R_BE_PCIE_MIX_CFG,
+ B_BE_L1SUB_ENABLE);
+}
+
+static void rtw89_pci_clkreq_set_be(struct rtw89_dev *rtwdev, bool enable)
+{
+ rtw89_write32_mask(rtwdev, R_BE_PCIE_LAT_CTRL, B_BE_CLK_REQ_LAT_MASK,
+ PCIE_CLKDLY_HW_V1_0);
+
+ if (enable)
+ rtw89_write32_set(rtwdev, R_BE_L1_CLK_CTRL,
+ B_BE_CLK_PM_EN);
+ else
+ rtw89_write32_clr(rtwdev, R_AX_L1_CLK_CTRL,
+ B_BE_CLK_PM_EN);
+}
+
static void _patch_pcie_power_wake_be(struct rtw89_dev *rtwdev, bool power_up)
{
if (power_up)
@@ -510,5 +558,9 @@ const struct rtw89_pci_gen_def rtw89_pci_gen_be = {

.lv1rst_stop_dma = rtw89_pci_lv1rst_stop_dma_be,
.lv1rst_start_dma = rtw89_pci_lv1rst_start_dma_be,
+
+ .aspm_set = rtw89_pci_aspm_set_be,
+ .clkreq_set = rtw89_pci_clkreq_set_be,
+ .l1ss_set = rtw89_pci_l1ss_set_be,
};
EXPORT_SYMBOL(rtw89_pci_gen_be);
--
2.25.1


2024-02-22 06:44:23

by Ping-Ke Shih

[permalink] [raw]
Subject: [PATCH 1/3] wifi: rtw89: advertise missing extended scan feature

From: Kuan-Chung Chen <[email protected]>

Add support for random serial number in probe request and
configure channel dwell time. Advertise corresponding feature flag
NL80211_EXT_FEATURE_SCAN_RANDOM_SN and NL80211_EXT_FEATURE_SET_SCAN_DWELL.
Use the scan request duration as channel dwell time when it is
non-zero, otherwise use the default value.

Signed-off-by: Kuan-Chung Chen <[email protected]>
Signed-off-by: Ping-Ke Shih <[email protected]>
---
drivers/net/wireless/realtek/rtw89/core.c | 2 ++
drivers/net/wireless/realtek/rtw89/fw.c | 4 ++--
2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/realtek/rtw89/core.c b/drivers/net/wireless/realtek/rtw89/core.c
index f697e3d898e6..d4bca8cd08f2 100644
--- a/drivers/net/wireless/realtek/rtw89/core.c
+++ b/drivers/net/wireless/realtek/rtw89/core.c
@@ -4505,6 +4505,8 @@ static int rtw89_core_register_hw(struct rtw89_dev *rtwdev)
hw->wiphy->max_remain_on_channel_duration = 1000;

wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_CAN_REPLACE_PTK0);
+ wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_SCAN_RANDOM_SN);
+ wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_SET_SCAN_DWELL);

ret = rtw89_core_set_supported_band(rtwdev);
if (ret) {
diff --git a/drivers/net/wireless/realtek/rtw89/fw.c b/drivers/net/wireless/realtek/rtw89/fw.c
index 63897351ca15..f654ad4c2546 100644
--- a/drivers/net/wireless/realtek/rtw89/fw.c
+++ b/drivers/net/wireless/realtek/rtw89/fw.c
@@ -5739,7 +5739,7 @@ int rtw89_hw_scan_add_chan_list(struct rtw89_dev *rtwdev,
goto out;
}

- if (req->duration_mandatory)
+ if (req->duration)
ch_info->period = req->duration;
else if (channel->band == NL80211_BAND_6GHZ)
ch_info->period = RTW89_CHANNEL_TIME_6G +
@@ -5817,7 +5817,7 @@ int rtw89_hw_scan_add_chan_list_be(struct rtw89_dev *rtwdev,
goto out;
}

- if (req->duration_mandatory)
+ if (req->duration)
ch_info->period = req->duration;
else if (channel->band == NL80211_BAND_6GHZ)
ch_info->period = RTW89_CHANNEL_TIME_6G + RTW89_DWELL_TIME_6G;
--
2.25.1


2024-02-27 15:27:57

by Kalle Valo

[permalink] [raw]
Subject: Re: [PATCH 1/3] wifi: rtw89: advertise missing extended scan feature

Ping-Ke Shih <[email protected]> wrote:

> From: Kuan-Chung Chen <[email protected]>
>
> Add support for random serial number in probe request and
> configure channel dwell time. Advertise corresponding feature flag
> NL80211_EXT_FEATURE_SCAN_RANDOM_SN and NL80211_EXT_FEATURE_SET_SCAN_DWELL.
> Use the scan request duration as channel dwell time when it is
> non-zero, otherwise use the default value.
>
> Signed-off-by: Kuan-Chung Chen <[email protected]>
> Signed-off-by: Ping-Ke Shih <[email protected]>

3 patches applied to wireless-next.git, thanks.

dc10daddfeb1 wifi: rtw89: advertise missing extended scan feature
6ebe995542d0 wifi: rtw89: Update EHT PHY beamforming capability
53fe234f15b9 wifi: rtw89: pci: implement PCI CLK/ASPM/L1SS for WiFi 7 chips

--
https://patchwork.kernel.org/project/linux-wireless/patch/[email protected]/

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches