LinuxLists.cc - [PATCH] wifi: mt76: mt7915: add wds support when wed is enabled

2022-11-21 11:40:21

Subject: [PATCH] wifi: mt76: mt7915: add wds support when wed is enabled

The current WED only supports 256 wcid, whereas mt7986 can support up to 512 entries,
so firmware provides a rule to get sta_info by DA when wcid is set to 0x3ff by txd.
Also, WED provides a register to overwrite txd wcid, that is, wcid[9:8] can
be overwritten by 0x3 and wcid[7:0] is set to 0xff by host driver.

However, firmware is unable to get sta_info from DA as DA != RA for 4addr cases,
so firmware and wifi host driver both use wcid (256 - 271) and (768 ~ 783)
for sync up to get correct sta_info

Tested-by: Sujuan Chen <[email protected]>
Co-developed-by: Bo Jiao <[email protected]>
Signed-off-by: Bo Jiao <[email protected]>
Signed-off-by: Sujuan Chen <[email protected]>
---
This patch is based on
https://patchwork.kernel.org/project/linux-mediatek/list/?series=697444
---
drivers/net/wireless/mediatek/mt76/mt76.h | 6 +++
.../net/wireless/mediatek/mt76/mt7603/main.c | 2 +-
.../net/wireless/mediatek/mt76/mt7615/main.c | 2 +-
.../wireless/mediatek/mt76/mt7615/pci_init.c | 2 +-
.../wireless/mediatek/mt76/mt7615/usb_sdio.c | 2 +-
.../net/wireless/mediatek/mt76/mt76x02_util.c | 2 +-
.../net/wireless/mediatek/mt76/mt7915/init.c | 2 +-
.../net/wireless/mediatek/mt76/mt7915/main.c | 24 +++++++++--
.../net/wireless/mediatek/mt76/mt7915/mcu.c | 11 ++++-
.../net/wireless/mediatek/mt76/mt7915/mcu.h | 1 +
.../net/wireless/mediatek/mt76/mt7915/mmio.c | 3 ++
.../net/wireless/mediatek/mt76/mt7921/init.c | 2 +-
.../net/wireless/mediatek/mt76/mt7921/main.c | 2 +-
.../net/wireless/mediatek/mt76/mt7996/init.c | 2 +-
.../net/wireless/mediatek/mt76/mt7996/main.c | 2 +-
drivers/net/wireless/mediatek/mt76/util.c | 42 ++++++++++++++++++-
drivers/net/wireless/mediatek/mt76/util.h | 2 +-
17 files changed, 91 insertions(+), 18 deletions(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mt76.h b/drivers/net/wireless/mediatek/mt76/mt76.h
index 33f87e518d68..1763b582c020 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76.h
+++ b/drivers/net/wireless/mediatek/mt76/mt76.h
@@ -38,6 +38,12 @@
#define MT_WED_Q_RX(_n) __MT_WED_Q(MT76_WED_Q_RX, _n)
#define MT_WED_Q_TXFREE __MT_WED_Q(MT76_WED_Q_TXFREE, 0)

+enum mt76_wed_state {
+ MT76_WED_DISABLED,
+ MT76_WED_ACTIVE,
+ MT76_WED_WDS_ACTIVE,
+};
+
struct mt76_dev;
struct mt76_phy;
struct mt76_wcid;
diff --git a/drivers/net/wireless/mediatek/mt76/mt7603/main.c b/drivers/net/wireless/mediatek/mt76/mt7603/main.c
index ca50feb0b3a9..d788bb59a113 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7603/main.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7603/main.c
@@ -347,7 +347,7 @@ mt7603_sta_add(struct mt76_dev *mdev, struct ieee80211_vif *vif,
int idx;
int ret = 0;

- idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7603_WTBL_STA - 1);
+ idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7603_WTBL_STA - 1, 0);
if (idx < 0)
return -ENOSPC;

diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/main.c b/drivers/net/wireless/mediatek/mt76/mt7615/main.c
index ab4c1b4478aa..5e2901a21e4c 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/main.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/main.c
@@ -625,7 +625,7 @@ int mt7615_mac_sta_add(struct mt76_dev *mdev, struct ieee80211_vif *vif,
struct mt7615_phy *phy;
int idx, err;

- idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7615_WTBL_STA - 1);
+ idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7615_WTBL_STA - 1, 0);
if (idx < 0)
return -ENOSPC;

diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/pci_init.c b/drivers/net/wireless/mediatek/mt76/mt7615/pci_init.c
index 87b4aa52ee0f..8e0ef9ce5b68 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/pci_init.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/pci_init.c
@@ -55,7 +55,7 @@ static int mt7615_init_hardware(struct mt7615_dev *dev)
set_bit(MT76_STATE_INITIALIZED, &dev->mphy.state);

/* Beacon and mgmt frames should occupy wcid 0 */
- idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7615_WTBL_STA - 1);
+ idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7615_WTBL_STA - 1, 0);
if (idx)
return -ENOSPC;

diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/usb_sdio.c b/drivers/net/wireless/mediatek/mt76/mt7615/usb_sdio.c
index 0052d103e276..9dcd1f6970b3 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/usb_sdio.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/usb_sdio.c
@@ -292,7 +292,7 @@ static int mt7663_usb_sdio_init_hardware(struct mt7615_dev *dev)
set_bit(MT76_STATE_INITIALIZED, &dev->mphy.state);

/* Beacon and mgmt frames should occupy wcid 0 */
- idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7615_WTBL_STA - 1);
+ idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7615_WTBL_STA - 1, 0);
if (idx)
return -ENOSPC;

diff --git a/drivers/net/wireless/mediatek/mt76/mt76x02_util.c b/drivers/net/wireless/mediatek/mt76/mt76x02_util.c
index 604ddcc21123..253c8ce32f8f 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76x02_util.c
+++ b/drivers/net/wireless/mediatek/mt76/mt76x02_util.c
@@ -246,7 +246,7 @@ int mt76x02_sta_add(struct mt76_dev *mdev, struct ieee80211_vif *vif,

memset(msta, 0, sizeof(*msta));

- idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT76x02_N_WCIDS);
+ idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT76x02_N_WCIDS, 0);
if (idx < 0)
return -ENOSPC;

diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/init.c b/drivers/net/wireless/mediatek/mt76/mt7915/init.c
index b48c2ba9273d..e5c85f422621 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/init.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/init.c
@@ -710,7 +710,7 @@ mt7915_init_hardware(struct mt7915_dev *dev, struct mt7915_phy *phy2)
}

/* Beacon and mgmt frames should occupy wcid 0 */
- idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7915_WTBL_STA);
+ idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7915_WTBL_STA, 0);
if (idx)
return -ENOSPC;

diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/main.c b/drivers/net/wireless/mediatek/mt76/mt7915/main.c
index 90c5d8fe4f73..3cab2f73ce23 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/main.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/main.c
@@ -662,8 +662,15 @@ int mt7915_mac_sta_add(struct mt76_dev *mdev, struct ieee80211_vif *vif,
struct mt7915_vif *mvif = (struct mt7915_vif *)vif->drv_priv;
bool ext_phy = mvif->phy != &dev->phy;
int ret, idx;
+ u8 flag = MT76_WED_DISABLED;

- idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7915_WTBL_STA);
+ if (mtk_wed_device_active(&dev->mt76.mmio.wed) &&
+ !is_mt7915(&dev->mt76)) {
+ flag = test_bit(MT_WCID_FLAG_4ADDR, &msta->wcid.flags) ?
+ MT76_WED_WDS_ACTIVE : MT76_WED_ACTIVE;
+ }
+
+ idx = mt76_wcid_alloc(mdev->wcid_mask, MT7915_WTBL_STA, flag);
if (idx < 0)
return -ENOSPC;

@@ -1117,6 +1124,13 @@ static void mt7915_sta_set_4addr(struct ieee80211_hw *hw,
else
clear_bit(MT_WCID_FLAG_4ADDR, &msta->wcid.flags);

+ if (mtk_wed_device_active(&dev->mt76.mmio.wed) &&
+ !is_mt7915(&dev->mt76)) {
+ mt7915_sta_remove(hw, vif, sta);
+ mt76_sta_pre_rcu_remove(hw, vif, sta);
+ mt7915_sta_add(hw, vif, sta);
+ }
+
mt76_connac_mcu_wtbl_update_hdr_trans(&dev->mt76, vif, sta);
}

@@ -1448,15 +1462,19 @@ mt7915_net_fill_forward_path(struct ieee80211_hw *hw,
if (!mtk_wed_device_active(wed))
return -ENODEV;

- if (msta->wcid.idx > 0xff)
+ if (msta->wcid.idx > MT7915_WTBL_STA)
return -EIO;

path->type = DEV_PATH_MTK_WDMA;
path->dev = ctx->dev;
path->mtk_wdma.wdma_idx = wed->wdma_idx;
path->mtk_wdma.bss = mvif->mt76.idx;
- path->mtk_wdma.wcid = is_mt7915(&dev->mt76) ? msta->wcid.idx : 0x3ff;
path->mtk_wdma.queue = phy != &dev->phy;
+ if (test_bit(MT_WCID_FLAG_4ADDR, &msta->wcid.flags) ||
+ is_mt7915(&dev->mt76))
+ path->mtk_wdma.wcid = msta->wcid.idx;
+ else
+ path->mtk_wdma.wcid = 0x3ff;

ctx->dev = NULL;

diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
index 2769d6c897d9..aeeeff9b2143 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
@@ -2303,8 +2303,15 @@ int mt7915_mcu_init_firmware(struct mt7915_dev *dev)
if (ret)
return ret;

- if (mtk_wed_device_active(&dev->mt76.mmio.wed) && is_mt7915(&dev->mt76))
- mt7915_mcu_wa_cmd(dev, MCU_WA_PARAM_CMD(CAPABILITY), 0, 0, 0);
+ if (mtk_wed_device_active(&dev->mt76.mmio.wed)) {
+ if (is_mt7915(&dev->mt76))
+ mt7915_mcu_wa_cmd(dev, MCU_WA_PARAM_CMD(CAPABILITY),
+ 0, 0, 0);
+ else
+ mt7915_mcu_wa_cmd(dev, MCU_WA_PARAM_CMD(SET),
+ MCU_WA_PARAM_WED_VERSION,
+ dev->mt76.mmio.wed.rev_id, 0);
+ }

ret = mt7915_mcu_set_mwds(dev, 1);
if (ret)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.h b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.h
index c19b5d66c0e1..59e1ea35f77f 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.h
@@ -260,6 +260,7 @@ enum {
MCU_WA_PARAM_PDMA_RX = 0x04,
MCU_WA_PARAM_CPU_UTIL = 0x0b,
MCU_WA_PARAM_RED = 0x0e,
+ MCU_WA_PARAM_WED_VERSION = 0x32,
};

enum mcu_mmps_mode {
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mmio.c b/drivers/net/wireless/mediatek/mt76/mt7915/mmio.c
index 1fcf34f57a16..d90793d082b8 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/mmio.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/mmio.c
@@ -773,6 +773,9 @@ int mt7915_mmio_wed_init(struct mt7915_dev *dev, void *pdev_ptr,

dev->mt76.rx_token_size = wed->wlan.rx_npkt;

+ if (!is_mt7915(&dev->mt76))
+ wed->wlan.wcid_512 = true;
+
if (mtk_wed_device_attach(wed))
return 0;

diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/init.c b/drivers/net/wireless/mediatek/mt76/mt7921/init.c
index 79b8055ce4c4..702ff300f8f7 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/init.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/init.c
@@ -283,7 +283,7 @@ static int mt7921_init_wcid(struct mt7921_dev *dev)
int idx;

/* Beacon and mgmt frames should occupy wcid 0 */
- idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7921_WTBL_STA - 1);
+ idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7921_WTBL_STA - 1, 0);
if (idx)
return -ENOSPC;

diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/main.c b/drivers/net/wireless/mediatek/mt76/mt7921/main.c
index 41df17efdb3a..3d8771fcb847 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/main.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/main.c
@@ -814,7 +814,7 @@ int mt7921_mac_sta_add(struct mt76_dev *mdev, struct ieee80211_vif *vif,
struct mt7921_vif *mvif = (struct mt7921_vif *)vif->drv_priv;
int ret, idx;

- idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7921_WTBL_STA - 1);
+ idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7921_WTBL_STA - 1, 0);
if (idx < 0)
return -ENOSPC;

diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/init.c b/drivers/net/wireless/mediatek/mt76/mt7996/init.c
index cd1657e3585d..4cf055040519 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7996/init.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7996/init.c
@@ -433,7 +433,7 @@ static int mt7996_init_hardware(struct mt7996_dev *dev)
return ret;

/* Beacon and mgmt frames should occupy wcid 0 */
- idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7996_WTBL_STA);
+ idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7996_WTBL_STA, 0);
if (idx)
return -ENOSPC;

diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/main.c b/drivers/net/wireless/mediatek/mt76/mt7996/main.c
index 21dea3fa7dc1..fd40b515cc5b 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7996/main.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7996/main.c
@@ -579,7 +579,7 @@ int mt7996_mac_sta_add(struct mt76_dev *mdev, struct ieee80211_vif *vif,
u8 band_idx = mvif->phy->mt76->band_idx;
int ret, idx;

- idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7996_WTBL_STA);
+ idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7996_WTBL_STA, 0);
if (idx < 0)
return -ENOSPC;

diff --git a/drivers/net/wireless/mediatek/mt76/util.c b/drivers/net/wireless/mediatek/mt76/util.c
index 581964425468..0850149f4200 100644
--- a/drivers/net/wireless/mediatek/mt76/util.c
+++ b/drivers/net/wireless/mediatek/mt76/util.c
@@ -42,9 +42,14 @@ bool __mt76_poll_msec(struct mt76_dev *dev, u32 offset, u32 mask, u32 val,
}
EXPORT_SYMBOL_GPL(__mt76_poll_msec);

-int mt76_wcid_alloc(u32 *mask, int size)
+int mt76_wcid_alloc(u32 *mask, int size, u8 flag)
{
+#define MT76_WED_WDS_MIN 256
+#define MT76_WED_WDS_CNT 16
+
int i, idx = 0, cur;
+ int min = MT76_WED_WDS_MIN;
+ int max = min + MT76_WED_WDS_CNT;

for (i = 0; i < DIV_ROUND_UP(size, 32); i++) {
idx = ffs(~mask[i]);
@@ -53,13 +58,46 @@ int mt76_wcid_alloc(u32 *mask, int size)

idx--;
cur = i * 32 + idx;
- if (cur >= size)
+
+ switch (flag) {
+ case MT76_WED_DISABLED:
+ if (cur >= size)
+ goto error;
+
break;
+ case MT76_WED_ACTIVE:
+ if (cur >= min && cur < max)
+ continue;
+
+ if (cur >= size) {
+ u32 end = MT76_WED_WDS_CNT - 1;
+
+ i = min / 32;
+ idx = ffs(~mask[i] & GENMASK(end, 0));
+ if (!idx)
+ goto error;
+ idx--;
+ cur = min + idx;
+ }
+
+ break;
+ case MT76_WED_WDS_ACTIVE:
+ if (cur < min)
+ continue;
+ if (cur >= max)
+ goto error;
+
+ break;
+ default:
+ WARN_ON(1);
+ break;
+ }

mask[i] |= BIT(idx);
return cur;
}

+error:
return -1;
}
EXPORT_SYMBOL_GPL(mt76_wcid_alloc);
diff --git a/drivers/net/wireless/mediatek/mt76/util.h b/drivers/net/wireless/mediatek/mt76/util.h
index 260965dde94c..c72460e78389 100644
--- a/drivers/net/wireless/mediatek/mt76/util.h
+++ b/drivers/net/wireless/mediatek/mt76/util.h
@@ -27,7 +27,7 @@ enum {
#define MT76_INCR(_var, _size) \
(_var = (((_var) + 1) % (_size)))

-int mt76_wcid_alloc(u32 *mask, int size);
+int mt76_wcid_alloc(u32 *mask, int size, u8 flag);

static inline void
mt76_wcid_mask_set(u32 *mask, int idx)
--
2.18.0

2022-11-21 13:30:29

by Lorenzo Bianconi

[permalink] [raw]

Subject: Re: [PATCH] wifi: mt76: mt7915: add wds support when wed is enabled

> The current WED only supports 256 wcid, whereas mt7986 can support up to 512 entries,
> so firmware provides a rule to get sta_info by DA when wcid is set to 0x3ff by txd.
> Also, WED provides a register to overwrite txd wcid, that is, wcid[9:8] can
> be overwritten by 0x3 and wcid[7:0] is set to 0xff by host driver.
>
> However, firmware is unable to get sta_info from DA as DA != RA for 4addr cases,
> so firmware and wifi host driver both use wcid (256 - 271) and (768 ~ 783)
> for sync up to get correct sta_info
>
> Tested-by: Sujuan Chen <[email protected]>
> Co-developed-by: Bo Jiao <[email protected]>
> Signed-off-by: Bo Jiao <[email protected]>
> Signed-off-by: Sujuan Chen <[email protected]>
> ---
> This patch is based on
> https://patchwork.kernel.org/project/linux-mediatek/list/?series=697444
> ---
> drivers/net/wireless/mediatek/mt76/mt76.h | 6 +++
> .../net/wireless/mediatek/mt76/mt7603/main.c | 2 +-
> .../net/wireless/mediatek/mt76/mt7615/main.c | 2 +-
> .../wireless/mediatek/mt76/mt7615/pci_init.c | 2 +-
> .../wireless/mediatek/mt76/mt7615/usb_sdio.c | 2 +-
> .../net/wireless/mediatek/mt76/mt76x02_util.c | 2 +-
> .../net/wireless/mediatek/mt76/mt7915/init.c | 2 +-
> .../net/wireless/mediatek/mt76/mt7915/main.c | 24 +++++++++--
> .../net/wireless/mediatek/mt76/mt7915/mcu.c | 11 ++++-
> .../net/wireless/mediatek/mt76/mt7915/mcu.h | 1 +
> .../net/wireless/mediatek/mt76/mt7915/mmio.c | 3 ++
> .../net/wireless/mediatek/mt76/mt7921/init.c | 2 +-
> .../net/wireless/mediatek/mt76/mt7921/main.c | 2 +-
> .../net/wireless/mediatek/mt76/mt7996/init.c | 2 +-
> .../net/wireless/mediatek/mt76/mt7996/main.c | 2 +-
> drivers/net/wireless/mediatek/mt76/util.c | 42 ++++++++++++++++++-
> drivers/net/wireless/mediatek/mt76/util.h | 2 +-
> 17 files changed, 91 insertions(+), 18 deletions(-)
>

Hi Sujuan,

I took just a brief look at the patch, but I think you can significantly
reduce the patch size doing something like:

int __mt76_wcid_alloc(u32 *mask, int size, u8 flag)
{
...
}

static inline int mt76_wcid_alloc(u32 *mask, int size)
{
return __mt76_wcid_alloc(, 0);
}

> diff --git a/drivers/net/wireless/mediatek/mt76/mt76.h b/drivers/net/wireless/mediatek/mt76/mt76.h
> index 33f87e518d68..1763b582c020 100644
> --- a/drivers/net/wireless/mediatek/mt76/mt76.h
> +++ b/drivers/net/wireless/mediatek/mt76/mt76.h
> @@ -38,6 +38,12 @@
> #define MT_WED_Q_RX(_n) __MT_WED_Q(MT76_WED_Q_RX, _n)
> #define MT_WED_Q_TXFREE __MT_WED_Q(MT76_WED_Q_TXFREE, 0)
>
> +enum mt76_wed_state {
> + MT76_WED_DISABLED,
> + MT76_WED_ACTIVE,
> + MT76_WED_WDS_ACTIVE,
> +};
> +
> struct mt76_dev;
> struct mt76_phy;
> struct mt76_wcid;
> diff --git a/drivers/net/wireless/mediatek/mt76/mt7603/main.c b/drivers/net/wireless/mediatek/mt76/mt7603/main.c
> index ca50feb0b3a9..d788bb59a113 100644
> --- a/drivers/net/wireless/mediatek/mt76/mt7603/main.c
> +++ b/drivers/net/wireless/mediatek/mt76/mt7603/main.c
> @@ -347,7 +347,7 @@ mt7603_sta_add(struct mt76_dev *mdev, struct ieee80211_vif *vif,
> int idx;
> int ret = 0;
>
> - idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7603_WTBL_STA - 1);
> + idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7603_WTBL_STA - 1, 0);
> if (idx < 0)
> return -ENOSPC;
>

[...]

> mt76_connac_mcu_wtbl_update_hdr_trans(&dev->mt76, vif, sta);
> }
>
> @@ -1448,15 +1462,19 @@ mt7915_net_fill_forward_path(struct ieee80211_hw *hw,
> if (!mtk_wed_device_active(wed))
> return -ENODEV;
>
> - if (msta->wcid.idx > 0xff)
> + if (msta->wcid.idx > MT7915_WTBL_STA)
> return -EIO;
>
> path->type = DEV_PATH_MTK_WDMA;
> path->dev = ctx->dev;
> path->mtk_wdma.wdma_idx = wed->wdma_idx;
> path->mtk_wdma.bss = mvif->mt76.idx;
> - path->mtk_wdma.wcid = is_mt7915(&dev->mt76) ? msta->wcid.idx : 0x3ff;
> path->mtk_wdma.queue = phy != &dev->phy;
> + if (test_bit(MT_WCID_FLAG_4ADDR, &msta->wcid.flags) ||
> + is_mt7915(&dev->mt76))
> + path->mtk_wdma.wcid = msta->wcid.idx;
> + else
> + path->mtk_wdma.wcid = 0x3ff;
>
> ctx->dev = NULL;
>
> diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
> index 2769d6c897d9..aeeeff9b2143 100644
> --- a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
> +++ b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
> @@ -2303,8 +2303,15 @@ int mt7915_mcu_init_firmware(struct mt7915_dev *dev)
> if (ret)
> return ret;
>
> - if (mtk_wed_device_active(&dev->mt76.mmio.wed) && is_mt7915(&dev->mt76))
> - mt7915_mcu_wa_cmd(dev, MCU_WA_PARAM_CMD(CAPABILITY), 0, 0, 0);
> + if (mtk_wed_device_active(&dev->mt76.mmio.wed)) {
> + if (is_mt7915(&dev->mt76))
> + mt7915_mcu_wa_cmd(dev, MCU_WA_PARAM_CMD(CAPABILITY),
> + 0, 0, 0);
> + else
> + mt7915_mcu_wa_cmd(dev, MCU_WA_PARAM_CMD(SET),
> + MCU_WA_PARAM_WED_VERSION,
> + dev->mt76.mmio.wed.rev_id, 0);
> + }

can you please honor mt7915_mcu_wa_cmd() returned value?

>
> ret = mt7915_mcu_set_mwds(dev, 1);
> if (ret)
> diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.h b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.h
> index c19b5d66c0e1..59e1ea35f77f 100644
> --- a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.h
> +++ b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.h
> @@ -260,6 +260,7 @@ enum {
> MCU_WA_PARAM_PDMA_RX = 0x04,
> MCU_WA_PARAM_CPU_UTIL = 0x0b,
> MCU_WA_PARAM_RED = 0x0e,
> + MCU_WA_PARAM_WED_VERSION = 0x32,
> };
>
> enum mcu_mmps_mode {
> diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mmio.c b/drivers/net/wireless/mediatek/mt76/mt7915/mmio.c
> index 1fcf34f57a16..d90793d082b8 100644
> --- a/drivers/net/wireless/mediatek/mt76/mt7915/mmio.c
> +++ b/drivers/net/wireless/mediatek/mt76/mt7915/mmio.c
> @@ -773,6 +773,9 @@ int mt7915_mmio_wed_init(struct mt7915_dev *dev, void *pdev_ptr,
>
> dev->mt76.rx_token_size = wed->wlan.rx_npkt;
>
> + if (!is_mt7915(&dev->mt76))
> + wed->wlan.wcid_512 = true;
> +
> if (mtk_wed_device_attach(wed))
> return 0;
>
> diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/init.c b/drivers/net/wireless/mediatek/mt76/mt7921/init.c
> index 79b8055ce4c4..702ff300f8f7 100644
> --- a/drivers/net/wireless/mediatek/mt76/mt7921/init.c
> +++ b/drivers/net/wireless/mediatek/mt76/mt7921/init.c
> @@ -283,7 +283,7 @@ static int mt7921_init_wcid(struct mt7921_dev *dev)
> int idx;
>
> /* Beacon and mgmt frames should occupy wcid 0 */
> - idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7921_WTBL_STA - 1);
> + idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7921_WTBL_STA - 1, 0);
> if (idx)
> return -ENOSPC;
>
> diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/main.c b/drivers/net/wireless/mediatek/mt76/mt7921/main.c
> index 41df17efdb3a..3d8771fcb847 100644
> --- a/drivers/net/wireless/mediatek/mt76/mt7921/main.c
> +++ b/drivers/net/wireless/mediatek/mt76/mt7921/main.c
> @@ -814,7 +814,7 @@ int mt7921_mac_sta_add(struct mt76_dev *mdev, struct ieee80211_vif *vif,
> struct mt7921_vif *mvif = (struct mt7921_vif *)vif->drv_priv;
> int ret, idx;
>
> - idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7921_WTBL_STA - 1);
> + idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7921_WTBL_STA - 1, 0);
> if (idx < 0)
> return -ENOSPC;
>
> diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/init.c b/drivers/net/wireless/mediatek/mt76/mt7996/init.c
> index cd1657e3585d..4cf055040519 100644
> --- a/drivers/net/wireless/mediatek/mt76/mt7996/init.c
> +++ b/drivers/net/wireless/mediatek/mt76/mt7996/init.c
> @@ -433,7 +433,7 @@ static int mt7996_init_hardware(struct mt7996_dev *dev)
> return ret;
>
> /* Beacon and mgmt frames should occupy wcid 0 */
> - idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7996_WTBL_STA);
> + idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7996_WTBL_STA, 0);
> if (idx)
> return -ENOSPC;
>
> diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/main.c b/drivers/net/wireless/mediatek/mt76/mt7996/main.c
> index 21dea3fa7dc1..fd40b515cc5b 100644
> --- a/drivers/net/wireless/mediatek/mt76/mt7996/main.c
> +++ b/drivers/net/wireless/mediatek/mt76/mt7996/main.c
> @@ -579,7 +579,7 @@ int mt7996_mac_sta_add(struct mt76_dev *mdev, struct ieee80211_vif *vif,
> u8 band_idx = mvif->phy->mt76->band_idx;
> int ret, idx;
>
> - idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7996_WTBL_STA);
> + idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7996_WTBL_STA, 0);
> if (idx < 0)
> return -ENOSPC;
>
> diff --git a/drivers/net/wireless/mediatek/mt76/util.c b/drivers/net/wireless/mediatek/mt76/util.c
> index 581964425468..0850149f4200 100644
> --- a/drivers/net/wireless/mediatek/mt76/util.c
> +++ b/drivers/net/wireless/mediatek/mt76/util.c
> @@ -42,9 +42,14 @@ bool __mt76_poll_msec(struct mt76_dev *dev, u32 offset, u32 mask, u32 val,
> }
> EXPORT_SYMBOL_GPL(__mt76_poll_msec);
>
> -int mt76_wcid_alloc(u32 *mask, int size)
> +int mt76_wcid_alloc(u32 *mask, int size, u8 flag)
> {
> +#define MT76_WED_WDS_MIN 256
> +#define MT76_WED_WDS_CNT 16
> +
> int i, idx = 0, cur;
> + int min = MT76_WED_WDS_MIN;
> + int max = min + MT76_WED_WDS_CNT;
>
> for (i = 0; i < DIV_ROUND_UP(size, 32); i++) {
> idx = ffs(~mask[i]);
> @@ -53,13 +58,46 @@ int mt76_wcid_alloc(u32 *mask, int size)
>
> idx--;
> cur = i * 32 + idx;
> - if (cur >= size)

I think it easier to understand the code if you run the code below just if wed
is active, right?

if (!mtk_wed_device_active())
break;

Regards,
Lorenzo

> +
> + switch (flag) {
> + case MT76_WED_DISABLED:
> + if (cur >= size)
> + goto error;
> +
> break;
> + case MT76_WED_ACTIVE:
> + if (cur >= min && cur < max)
> + continue;
> +
> + if (cur >= size) {
> + u32 end = MT76_WED_WDS_CNT - 1;
> +
> + i = min / 32;
> + idx = ffs(~mask[i] & GENMASK(end, 0));
> + if (!idx)
> + goto error;
> + idx--;
> + cur = min + idx;
> + }
> +
> + break;
> + case MT76_WED_WDS_ACTIVE:
> + if (cur < min)
> + continue;
> + if (cur >= max)
> + goto error;
> +
> + break;
> + default:
> + WARN_ON(1);
> + break;
> + }
>
> mask[i] |= BIT(idx);
> return cur;
> }
>
> +error:
> return -1;
> }
> EXPORT_SYMBOL_GPL(mt76_wcid_alloc);
> diff --git a/drivers/net/wireless/mediatek/mt76/util.h b/drivers/net/wireless/mediatek/mt76/util.h
> index 260965dde94c..c72460e78389 100644
> --- a/drivers/net/wireless/mediatek/mt76/util.h
> +++ b/drivers/net/wireless/mediatek/mt76/util.h
> @@ -27,7 +27,7 @@ enum {
> #define MT76_INCR(_var, _size) \
> (_var = (((_var) + 1) % (_size)))
>
> -int mt76_wcid_alloc(u32 *mask, int size);
> +int mt76_wcid_alloc(u32 *mask, int size, u8 flag);
>
> static inline void
> mt76_wcid_mask_set(u32 *mask, int idx)
> --
> 2.18.0
>

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2022-11-21 13:50:58

by Lorenzo Bianconi

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Subject: Re: [PATCH] wifi: mt76: mt7915: add wds support when wed is enabled

[...]
> };
>
> enum mcu_mmps_mode {
> diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mmio.c b/drivers/net/wireless/mediatek/mt76/mt7915/mmio.c
> index 1fcf34f57a16..d90793d082b8 100644
> --- a/drivers/net/wireless/mediatek/mt76/mt7915/mmio.c
> +++ b/drivers/net/wireless/mediatek/mt76/mt7915/mmio.c
> @@ -773,6 +773,9 @@ int mt7915_mmio_wed_init(struct mt7915_dev *dev, void *pdev_ptr,
>
> dev->mt76.rx_token_size = wed->wlan.rx_npkt;
>
> + if (!is_mt7915(&dev->mt76))
> + wed->wlan.wcid_512 = true;

I forgot to say this is already in this patch:

https://patchwork.kernel.org/project/linux-wireless/patch/c6a2a58cdd42b47b4c22137a40e357dd74ba8014.1668267241.git.lorenzo@kernel.org/

Regards,
Lorenzo

> +
> if (mtk_wed_device_attach(wed))
> return 0;
>
> diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/init.c b/drivers/net/wireless/mediatek/mt76/mt7921/init.c
> index 79b8055ce4c4..702ff300f8f7 100644
> --- a/drivers/net/wireless/mediatek/mt76/mt7921/init.c
> +++ b/drivers/net/wireless/mediatek/mt76/mt7921/init.c
> @@ -283,7 +283,7 @@ static int mt7921_init_wcid(struct mt7921_dev *dev)
> int idx;
>
> /* Beacon and mgmt frames should occupy wcid 0 */
> - idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7921_WTBL_STA - 1);
> + idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7921_WTBL_STA - 1, 0);
> if (idx)
> return -ENOSPC;
>
> diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/main.c b/drivers/net/wireless/mediatek/mt76/mt7921/main.c
> index 41df17efdb3a..3d8771fcb847 100644
> --- a/drivers/net/wireless/mediatek/mt76/mt7921/main.c
> +++ b/drivers/net/wireless/mediatek/mt76/mt7921/main.c
> @@ -814,7 +814,7 @@ int mt7921_mac_sta_add(struct mt76_dev *mdev, struct ieee80211_vif *vif,
> struct mt7921_vif *mvif = (struct mt7921_vif *)vif->drv_priv;
> int ret, idx;
>
> - idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7921_WTBL_STA - 1);
> + idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7921_WTBL_STA - 1, 0);
> if (idx < 0)
> return -ENOSPC;
>
> diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/init.c b/drivers/net/wireless/mediatek/mt76/mt7996/init.c
> index cd1657e3585d..4cf055040519 100644
> --- a/drivers/net/wireless/mediatek/mt76/mt7996/init.c
> +++ b/drivers/net/wireless/mediatek/mt76/mt7996/init.c
> @@ -433,7 +433,7 @@ static int mt7996_init_hardware(struct mt7996_dev *dev)
> return ret;
>
> /* Beacon and mgmt frames should occupy wcid 0 */
> - idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7996_WTBL_STA);
> + idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7996_WTBL_STA, 0);
> if (idx)
> return -ENOSPC;
>
> diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/main.c b/drivers/net/wireless/mediatek/mt76/mt7996/main.c
> index 21dea3fa7dc1..fd40b515cc5b 100644
> --- a/drivers/net/wireless/mediatek/mt76/mt7996/main.c
> +++ b/drivers/net/wireless/mediatek/mt76/mt7996/main.c
> @@ -579,7 +579,7 @@ int mt7996_mac_sta_add(struct mt76_dev *mdev, struct ieee80211_vif *vif,
> u8 band_idx = mvif->phy->mt76->band_idx;
> int ret, idx;
>
> - idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7996_WTBL_STA);
> + idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7996_WTBL_STA, 0);
> if (idx < 0)
> return -ENOSPC;
>
> diff --git a/drivers/net/wireless/mediatek/mt76/util.c b/drivers/net/wireless/mediatek/mt76/util.c
> index 581964425468..0850149f4200 100644
> --- a/drivers/net/wireless/mediatek/mt76/util.c
> +++ b/drivers/net/wireless/mediatek/mt76/util.c
> @@ -42,9 +42,14 @@ bool __mt76_poll_msec(struct mt76_dev *dev, u32 offset, u32 mask, u32 val,
> }
> EXPORT_SYMBOL_GPL(__mt76_poll_msec);
>
> -int mt76_wcid_alloc(u32 *mask, int size)
> +int mt76_wcid_alloc(u32 *mask, int size, u8 flag)
> {
> +#define MT76_WED_WDS_MIN 256
> +#define MT76_WED_WDS_CNT 16
> +
> int i, idx = 0, cur;
> + int min = MT76_WED_WDS_MIN;
> + int max = min + MT76_WED_WDS_CNT;
>
> for (i = 0; i < DIV_ROUND_UP(size, 32); i++) {
> idx = ffs(~mask[i]);
> @@ -53,13 +58,46 @@ int mt76_wcid_alloc(u32 *mask, int size)
>
> idx--;
> cur = i * 32 + idx;
> - if (cur >= size)
> +
> + switch (flag) {
> + case MT76_WED_DISABLED:
> + if (cur >= size)
> + goto error;
> +
> break;
> + case MT76_WED_ACTIVE:
> + if (cur >= min && cur < max)
> + continue;
> +
> + if (cur >= size) {
> + u32 end = MT76_WED_WDS_CNT - 1;
> +
> + i = min / 32;
> + idx = ffs(~mask[i] & GENMASK(end, 0));
> + if (!idx)
> + goto error;
> + idx--;
> + cur = min + idx;
> + }
> +
> + break;
> + case MT76_WED_WDS_ACTIVE:
> + if (cur < min)
> + continue;
> + if (cur >= max)
> + goto error;
> +
> + break;
> + default:
> + WARN_ON(1);
> + break;
> + }
>
> mask[i] |= BIT(idx);
> return cur;
> }
>
> +error:
> return -1;
> }
> EXPORT_SYMBOL_GPL(mt76_wcid_alloc);
> diff --git a/drivers/net/wireless/mediatek/mt76/util.h b/drivers/net/wireless/mediatek/mt76/util.h
> index 260965dde94c..c72460e78389 100644
> --- a/drivers/net/wireless/mediatek/mt76/util.h
> +++ b/drivers/net/wireless/mediatek/mt76/util.h
> @@ -27,7 +27,7 @@ enum {
> #define MT76_INCR(_var, _size) \
> (_var = (((_var) + 1) % (_size)))
>
> -int mt76_wcid_alloc(u32 *mask, int size);
> +int mt76_wcid_alloc(u32 *mask, int size, u8 flag);
>
> static inline void
> mt76_wcid_mask_set(u32 *mask, int idx)
> --
> 2.18.0
>

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2022-11-22 06:29:12

by Sujuan Chen (陈素娟)

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Subject: Re: [PATCH] wifi: mt76: mt7915: add wds support when wed is enabled

On Mon, 2022-11-21 at 14:42 +0100, Lorenzo Bianconi wrote:
> [...]
> > };
> >
> > enum mcu_mmps_mode {
> > diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mmio.c
> > b/drivers/net/wireless/mediatek/mt76/mt7915/mmio.c
> > index 1fcf34f57a16..d90793d082b8 100644
> > --- a/drivers/net/wireless/mediatek/mt76/mt7915/mmio.c
> > +++ b/drivers/net/wireless/mediatek/mt76/mt7915/mmio.c
> > @@ -773,6 +773,9 @@ int mt7915_mmio_wed_init(struct mt7915_dev
> > *dev, void *pdev_ptr,
> >
> > dev->mt76.rx_token_size = wed->wlan.rx_npkt;
> >
> > + if (!is_mt7915(&dev->mt76))
> > + wed->wlan.wcid_512 = true;
>
> I forgot to say this is already in this patch:
>
>
https://patchwork.kernel.org/project/linux-wireless/patch/c6a2a58cdd42b47b4c22137a40e357dd74ba8014.1668267241.git.lorenzo@kernel.org/
>

ack, I will drop it in v2

Regards,
Sujuan

> Regards,
> Lorenzo
>
> > +
> > if (mtk_wed_device_attach(wed))
> > return 0;
> >
> > diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/init.c
> > b/drivers/net/wireless/mediatek/mt76/mt7921/init.c
> > index 79b8055ce4c4..702ff300f8f7 100644
> > --- a/drivers/net/wireless/mediatek/mt76/mt7921/init.c
> > +++ b/drivers/net/wireless/mediatek/mt76/mt7921/init.c
> > @@ -283,7 +283,7 @@ static int mt7921_init_wcid(struct mt7921_dev
> > *dev)
> > int idx;
> >
> > /* Beacon and mgmt frames should occupy wcid 0 */
> > - idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7921_WTBL_STA -
> > 1);
> > + idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7921_WTBL_STA - 1,
> > 0);
> > if (idx)
> > return -ENOSPC;
> >
> > diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/main.c
> > b/drivers/net/wireless/mediatek/mt76/mt7921/main.c
> > index 41df17efdb3a..3d8771fcb847 100644
> > --- a/drivers/net/wireless/mediatek/mt76/mt7921/main.c
> > +++ b/drivers/net/wireless/mediatek/mt76/mt7921/main.c
> > @@ -814,7 +814,7 @@ int mt7921_mac_sta_add(struct mt76_dev *mdev,
> > struct ieee80211_vif *vif,
> > struct mt7921_vif *mvif = (struct mt7921_vif *)vif->drv_priv;
> > int ret, idx;
> >
> > - idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7921_WTBL_STA -
> > 1);
> > + idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7921_WTBL_STA - 1,
> > 0);
> > if (idx < 0)
> > return -ENOSPC;
> >
> > diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/init.c
> > b/drivers/net/wireless/mediatek/mt76/mt7996/init.c
> > index cd1657e3585d..4cf055040519 100644
> > --- a/drivers/net/wireless/mediatek/mt76/mt7996/init.c
> > +++ b/drivers/net/wireless/mediatek/mt76/mt7996/init.c
> > @@ -433,7 +433,7 @@ static int mt7996_init_hardware(struct
> > mt7996_dev *dev)
> > return ret;
> >
> > /* Beacon and mgmt frames should occupy wcid 0 */
> > - idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7996_WTBL_STA);
> > + idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7996_WTBL_STA, 0);
> > if (idx)
> > return -ENOSPC;
> >
> > diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/main.c
> > b/drivers/net/wireless/mediatek/mt76/mt7996/main.c
> > index 21dea3fa7dc1..fd40b515cc5b 100644
> > --- a/drivers/net/wireless/mediatek/mt76/mt7996/main.c
> > +++ b/drivers/net/wireless/mediatek/mt76/mt7996/main.c
> > @@ -579,7 +579,7 @@ int mt7996_mac_sta_add(struct mt76_dev *mdev,
> > struct ieee80211_vif *vif,
> > u8 band_idx = mvif->phy->mt76->band_idx;
> > int ret, idx;
> >
> > - idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7996_WTBL_STA);
> > + idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7996_WTBL_STA, 0);
> > if (idx < 0)
> > return -ENOSPC;
> >
> > diff --git a/drivers/net/wireless/mediatek/mt76/util.c
> > b/drivers/net/wireless/mediatek/mt76/util.c
> > index 581964425468..0850149f4200 100644
> > --- a/drivers/net/wireless/mediatek/mt76/util.c
> > +++ b/drivers/net/wireless/mediatek/mt76/util.c
> > @@ -42,9 +42,14 @@ bool __mt76_poll_msec(struct mt76_dev *dev, u32
> > offset, u32 mask, u32 val,
> > }
> > EXPORT_SYMBOL_GPL(__mt76_poll_msec);
> >
> > -int mt76_wcid_alloc(u32 *mask, int size)
> > +int mt76_wcid_alloc(u32 *mask, int size, u8 flag)
> > {
> > +#define MT76_WED_WDS_MIN 256
> > +#define MT76_WED_WDS_CNT 16
> > +
> > int i, idx = 0, cur;
> > + int min = MT76_WED_WDS_MIN;
> > + int max = min + MT76_WED_WDS_CNT;
> >
> > for (i = 0; i < DIV_ROUND_UP(size, 32); i++) {
> > idx = ffs(~mask[i]);
> > @@ -53,13 +58,46 @@ int mt76_wcid_alloc(u32 *mask, int size)
> >
> > idx--;
> > cur = i * 32 + idx;
> > - if (cur >= size)
> > +
> > + switch (flag) {
> > + case MT76_WED_DISABLED:
> > + if (cur >= size)
> > + goto error;
> > +
> > break;
> > + case MT76_WED_ACTIVE:
> > + if (cur >= min && cur < max)
> > + continue;
> > +
> > + if (cur >= size) {
> > + u32 end = MT76_WED_WDS_CNT - 1;
> > +
> > + i = min / 32;
> > + idx = ffs(~mask[i] & GENMASK(end, 0));
> > + if (!idx)
> > + goto error;
> > + idx--;
> > + cur = min + idx;
> > + }
> > +
> > + break;
> > + case MT76_WED_WDS_ACTIVE:
> > + if (cur < min)
> > + continue;
> > + if (cur >= max)
> > + goto error;
> > +
> > + break;
> > + default:
> > + WARN_ON(1);
> > + break;
> > + }
> >
> > mask[i] |= BIT(idx);
> > return cur;
> > }
> >
> > +error:
> > return -1;
> > }
> > EXPORT_SYMBOL_GPL(mt76_wcid_alloc);
> > diff --git a/drivers/net/wireless/mediatek/mt76/util.h
> > b/drivers/net/wireless/mediatek/mt76/util.h
> > index 260965dde94c..c72460e78389 100644
> > --- a/drivers/net/wireless/mediatek/mt76/util.h
> > +++ b/drivers/net/wireless/mediatek/mt76/util.h
> > @@ -27,7 +27,7 @@ enum {
> > #define MT76_INCR(_var, _size) \
> > (_var = (((_var) + 1) % (_size)))
> >
> > -int mt76_wcid_alloc(u32 *mask, int size);
> > +int mt76_wcid_alloc(u32 *mask, int size, u8 flag);
> >
> > static inline void
> > mt76_wcid_mask_set(u32 *mask, int idx)
> > --
> > 2.18.0
> >

2022-11-22 10:15:48

by Sujuan Chen (陈素娟)

[permalink] [raw]

Subject: Re: [PATCH] wifi: mt76: mt7915: add wds support when wed is enabled

On Mon, 2022-11-21 at 14:29 +0100, Lorenzo Bianconi wrote:
> > The current WED only supports 256 wcid, whereas mt7986 can support
> > up to 512 entries,
> > so firmware provides a rule to get sta_info by DA when wcid is set
> > to 0x3ff by txd.
> > Also, WED provides a register to overwrite txd wcid, that is,
> > wcid[9:8] can
> > be overwritten by 0x3 and wcid[7:0] is set to 0xff by host driver.
> >
> > However, firmware is unable to get sta_info from DA as DA != RA for
> > 4addr cases,
> > so firmware and wifi host driver both use wcid (256 - 271) and (768
> > ~ 783)
> > for sync up to get correct sta_info
> >
> > Tested-by: Sujuan Chen <[email protected]>
> > Co-developed-by: Bo Jiao <[email protected]>
> > Signed-off-by: Bo Jiao <[email protected]>
> > Signed-off-by: Sujuan Chen <[email protected]>
> > ---
> > This patch is based on
> >

https://patchwork.kernel.org/project/linux-mediatek/list/?series=697444
> > ---
> > drivers/net/wireless/mediatek/mt76/mt76.h | 6 +++
> > .../net/wireless/mediatek/mt76/mt7603/main.c | 2 +-
> > .../net/wireless/mediatek/mt76/mt7615/main.c | 2 +-
> > .../wireless/mediatek/mt76/mt7615/pci_init.c | 2 +-
> > .../wireless/mediatek/mt76/mt7615/usb_sdio.c | 2 +-
> > .../net/wireless/mediatek/mt76/mt76x02_util.c | 2 +-
> > .../net/wireless/mediatek/mt76/mt7915/init.c | 2 +-
> > .../net/wireless/mediatek/mt76/mt7915/main.c | 24 +++++++++--
> > .../net/wireless/mediatek/mt76/mt7915/mcu.c | 11 ++++-
> > .../net/wireless/mediatek/mt76/mt7915/mcu.h | 1 +
> > .../net/wireless/mediatek/mt76/mt7915/mmio.c | 3 ++
> > .../net/wireless/mediatek/mt76/mt7921/init.c | 2 +-
> > .../net/wireless/mediatek/mt76/mt7921/main.c | 2 +-
> > .../net/wireless/mediatek/mt76/mt7996/init.c | 2 +-
> > .../net/wireless/mediatek/mt76/mt7996/main.c | 2 +-
> > drivers/net/wireless/mediatek/mt76/util.c | 42
> > ++++++++++++++++++-
> > drivers/net/wireless/mediatek/mt76/util.h | 2 +-
> > 17 files changed, 91 insertions(+), 18 deletions(-)
> >
>
> Hi Sujuan,
>
> I took just a brief look at the patch, but I think you can
> significantly
> reduce the patch size doing something like:
>
> int __mt76_wcid_alloc(u32 *mask, int size, u8 flag)
> {
> ...
> }
>
> static inline int mt76_wcid_alloc(u32 *mask, int size)
> {
> return __mt76_wcid_alloc(, 0);
> }
>

Hi Lore,

ack, thanks. I will do it in v2.

> > diff --git a/drivers/net/wireless/mediatek/mt76/mt76.h
> > b/drivers/net/wireless/mediatek/mt76/mt76.h
> > index 33f87e518d68..1763b582c020 100644
> > --- a/drivers/net/wireless/mediatek/mt76/mt76.h
> > +++ b/drivers/net/wireless/mediatek/mt76/mt76.h
> > @@ -38,6 +38,12 @@
> > #define MT_WED_Q_RX(_n) __MT_WED_Q(MT76_WED_Q_RX, _n)
> > #define MT_WED_Q_TXFREE __MT_WED_Q(MT76_WED_Q_TXFREE,
> > 0)
> >
> > +enum mt76_wed_state {
> > + MT76_WED_DISABLED,
> > + MT76_WED_ACTIVE,
> > + MT76_WED_WDS_ACTIVE,
> > +};
> > +
> > struct mt76_dev;
> > struct mt76_phy;
> > struct mt76_wcid;
> > diff --git a/drivers/net/wireless/mediatek/mt76/mt7603/main.c
> > b/drivers/net/wireless/mediatek/mt76/mt7603/main.c
> > index ca50feb0b3a9..d788bb59a113 100644
> > --- a/drivers/net/wireless/mediatek/mt76/mt7603/main.c
> > +++ b/drivers/net/wireless/mediatek/mt76/mt7603/main.c
> > @@ -347,7 +347,7 @@ mt7603_sta_add(struct mt76_dev *mdev, struct
> > ieee80211_vif *vif,
> > int idx;
> > int ret = 0;
> >
> > - idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7603_WTBL_STA -
> > 1);
> > + idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7603_WTBL_STA - 1,
> > 0);
> > if (idx < 0)
> > return -ENOSPC;
> >
>
> [...]
>
> > mt76_connac_mcu_wtbl_update_hdr_trans(&dev->mt76, vif, sta);
> > }
> >
> > @@ -1448,15 +1462,19 @@ mt7915_net_fill_forward_path(struct
> > ieee80211_hw *hw,
> > if (!mtk_wed_device_active(wed))
> > return -ENODEV;
> >
> > - if (msta->wcid.idx > 0xff)
> > + if (msta->wcid.idx > MT7915_WTBL_STA)
> > return -EIO;
> >
> > path->type = DEV_PATH_MTK_WDMA;
> > path->dev = ctx->dev;
> > path->mtk_wdma.wdma_idx = wed->wdma_idx;
> > path->mtk_wdma.bss = mvif->mt76.idx;
> > - path->mtk_wdma.wcid = is_mt7915(&dev->mt76) ? msta->wcid.idx :
> > 0x3ff;
> > path->mtk_wdma.queue = phy != &dev->phy;
> > + if (test_bit(MT_WCID_FLAG_4ADDR, &msta->wcid.flags) ||
> > + is_mt7915(&dev->mt76))
> > + path->mtk_wdma.wcid = msta->wcid.idx;
> > + else
> > + path->mtk_wdma.wcid = 0x3ff;
> >
> > ctx->dev = NULL;
> >
> > diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
> > b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
> > index 2769d6c897d9..aeeeff9b2143 100644
> > --- a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
> > +++ b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
> > @@ -2303,8 +2303,15 @@ int mt7915_mcu_init_firmware(struct
> > mt7915_dev *dev)
> > if (ret)
> > return ret;
> >
> > - if (mtk_wed_device_active(&dev->mt76.mmio.wed) &&
> > is_mt7915(&dev->mt76))
> > - mt7915_mcu_wa_cmd(dev, MCU_WA_PARAM_CMD(CAPABILITY), 0,
> > 0, 0);
> > + if (mtk_wed_device_active(&dev->mt76.mmio.wed)) {
> > + if (is_mt7915(&dev->mt76))
> > + mt7915_mcu_wa_cmd(dev,
> > MCU_WA_PARAM_CMD(CAPABILITY),
> > + 0, 0, 0);
> > + else
> > + mt7915_mcu_wa_cmd(dev, MCU_WA_PARAM_CMD(SET),
> > + MCU_WA_PARAM_WED_VERSION,
> > + dev->mt76.mmio.wed.rev_id,
> > 0);
> > + }
>
> can you please honor mt7915_mcu_wa_cmd() returned value?
>

Ack.

> >
> > ret = mt7915_mcu_set_mwds(dev, 1);
> > if (ret)
> > diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.h
> > b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.h
> > index c19b5d66c0e1..59e1ea35f77f 100644
> > --- a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.h
> > +++ b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.h
> > @@ -260,6 +260,7 @@ enum {
> > MCU_WA_PARAM_PDMA_RX = 0x04,
> > MCU_WA_PARAM_CPU_UTIL = 0x0b,
> > MCU_WA_PARAM_RED = 0x0e,
> > + MCU_WA_PARAM_WED_VERSION = 0x32,
> > };
> >
> > enum mcu_mmps_mode {
> > diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mmio.c
> > b/drivers/net/wireless/mediatek/mt76/mt7915/mmio.c
> > index 1fcf34f57a16..d90793d082b8 100644
> > --- a/drivers/net/wireless/mediatek/mt76/mt7915/mmio.c
> > +++ b/drivers/net/wireless/mediatek/mt76/mt7915/mmio.c
> > @@ -773,6 +773,9 @@ int mt7915_mmio_wed_init(struct mt7915_dev
> > *dev, void *pdev_ptr,
> >
> > dev->mt76.rx_token_size = wed->wlan.rx_npkt;
> >
> > + if (!is_mt7915(&dev->mt76))
> > + wed->wlan.wcid_512 = true;
> > +
> > if (mtk_wed_device_attach(wed))
> > return 0;
> >
> > diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/init.c
> > b/drivers/net/wireless/mediatek/mt76/mt7921/init.c
> > index 79b8055ce4c4..702ff300f8f7 100644
> > --- a/drivers/net/wireless/mediatek/mt76/mt7921/init.c
> > +++ b/drivers/net/wireless/mediatek/mt76/mt7921/init.c
> > @@ -283,7 +283,7 @@ static int mt7921_init_wcid(struct mt7921_dev
> > *dev)
> > int idx;
> >
> > /* Beacon and mgmt frames should occupy wcid 0 */
> > - idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7921_WTBL_STA -
> > 1);
> > + idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7921_WTBL_STA - 1,
> > 0);
> > if (idx)
> > return -ENOSPC;
> >
> > diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/main.c
> > b/drivers/net/wireless/mediatek/mt76/mt7921/main.c
> > index 41df17efdb3a..3d8771fcb847 100644
> > --- a/drivers/net/wireless/mediatek/mt76/mt7921/main.c
> > +++ b/drivers/net/wireless/mediatek/mt76/mt7921/main.c
> > @@ -814,7 +814,7 @@ int mt7921_mac_sta_add(struct mt76_dev *mdev,
> > struct ieee80211_vif *vif,
> > struct mt7921_vif *mvif = (struct mt7921_vif *)vif->drv_priv;
> > int ret, idx;
> >
> > - idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7921_WTBL_STA -
> > 1);
> > + idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7921_WTBL_STA - 1,
> > 0);
> > if (idx < 0)
> > return -ENOSPC;
> >
> > diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/init.c
> > b/drivers/net/wireless/mediatek/mt76/mt7996/init.c
> > index cd1657e3585d..4cf055040519 100644
> > --- a/drivers/net/wireless/mediatek/mt76/mt7996/init.c
> > +++ b/drivers/net/wireless/mediatek/mt76/mt7996/init.c
> > @@ -433,7 +433,7 @@ static int mt7996_init_hardware(struct
> > mt7996_dev *dev)
> > return ret;
> >
> > /* Beacon and mgmt frames should occupy wcid 0 */
> > - idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7996_WTBL_STA);
> > + idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7996_WTBL_STA, 0);
> > if (idx)
> > return -ENOSPC;
> >
> > diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/main.c
> > b/drivers/net/wireless/mediatek/mt76/mt7996/main.c
> > index 21dea3fa7dc1..fd40b515cc5b 100644
> > --- a/drivers/net/wireless/mediatek/mt76/mt7996/main.c
> > +++ b/drivers/net/wireless/mediatek/mt76/mt7996/main.c
> > @@ -579,7 +579,7 @@ int mt7996_mac_sta_add(struct mt76_dev *mdev,
> > struct ieee80211_vif *vif,
> > u8 band_idx = mvif->phy->mt76->band_idx;
> > int ret, idx;
> >
> > - idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7996_WTBL_STA);
> > + idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7996_WTBL_STA, 0);
> > if (idx < 0)
> > return -ENOSPC;
> >
> > diff --git a/drivers/net/wireless/mediatek/mt76/util.c
> > b/drivers/net/wireless/mediatek/mt76/util.c
> > index 581964425468..0850149f4200 100644
> > --- a/drivers/net/wireless/mediatek/mt76/util.c
> > +++ b/drivers/net/wireless/mediatek/mt76/util.c
> > @@ -42,9 +42,14 @@ bool __mt76_poll_msec(struct mt76_dev *dev, u32
> > offset, u32 mask, u32 val,
> > }
> > EXPORT_SYMBOL_GPL(__mt76_poll_msec);
> >
> > -int mt76_wcid_alloc(u32 *mask, int size)
> > +int mt76_wcid_alloc(u32 *mask, int size, u8 flag)
> > {
> > +#define MT76_WED_WDS_MIN 256
> > +#define MT76_WED_WDS_CNT 16
> > +
> > int i, idx = 0, cur;
> > + int min = MT76_WED_WDS_MIN;
> > + int max = min + MT76_WED_WDS_CNT;
> >
> > for (i = 0; i < DIV_ROUND_UP(size, 32); i++) {
> > idx = ffs(~mask[i]);
> > @@ -53,13 +58,46 @@ int mt76_wcid_alloc(u32 *mask, int size)
> >
> > idx--;
> > cur = i * 32 + idx;
> > - if (cur >= size)
>
> I think it easier to understand the code if you run the code below
> just if wed
> is active, right?
>
> if (!mtk_wed_device_active())
> break;
>

mtk_wed_device_active() need mt76_dev to get wed.
!mtk_wed_device_active() is include in MT76_WED_DISABLED.
Would it be better to run if (!mtk_wed_device_active())?

Actually, the logic is a bit more complicated.
Using only mtk_wed_device_active() cannot cover all cases.
wcid(256~271) is special using for WDS when WED is enabled.
and wcid(256~271) will be used for normal sta when wcid(exclude
256~271) is run out.

I will change MT76_WED_DISABLED to MT76_WED_DEFAULT which includes
below situation:
(wed is disabled || beacon wcid(0))

is it ok?

> Regards,
> Lorenzo
>
> > +
> > + switch (flag) {
> > + case MT76_WED_DISABLED:
> > + if (cur >= size)
> > + goto error;
> > +
> > break;
> > + case MT76_WED_ACTIVE:
> > + if (cur >= min && cur < max)
> > + continue;
> > +
> > + if (cur >= size) {
> > + u32 end = MT76_WED_WDS_CNT - 1;
> > +
> > + i = min / 32;
> > + idx = ffs(~mask[i] & GENMASK(end, 0));
> > + if (!idx)
> > + goto error;
> > + idx--;
> > + cur = min + idx;
> > + }
> > +
> > + break;
> > + case MT76_WED_WDS_ACTIVE:
> > + if (cur < min)
> > + continue;
> > + if (cur >= max)
> > + goto error;
> > +
> > + break;
> > + default:
> > + WARN_ON(1);
> > + break;
> > + }
> >
> > mask[i] |= BIT(idx);
> > return cur;
> > }
> >
> > +error:
> > return -1;
> > }
> > EXPORT_SYMBOL_GPL(mt76_wcid_alloc);
> > diff --git a/drivers/net/wireless/mediatek/mt76/util.h
> > b/drivers/net/wireless/mediatek/mt76/util.h
> > index 260965dde94c..c72460e78389 100644
> > --- a/drivers/net/wireless/mediatek/mt76/util.h
> > +++ b/drivers/net/wireless/mediatek/mt76/util.h
> > @@ -27,7 +27,7 @@ enum {
> > #define MT76_INCR(_var, _size) \
> > (_var = (((_var) + 1) % (_size)))
> >
> > -int mt76_wcid_alloc(u32 *mask, int size);
> > +int mt76_wcid_alloc(u32 *mask, int size, u8 flag);
> >
> > static inline void
> > mt76_wcid_mask_set(u32 *mask, int idx)
> > --
> > 2.18.0
> >

2022-12-06 03:21:34

by Sujuan Chen (陈素娟)

[permalink] [raw]

Subject: Re: [PATCH] wifi: mt76: mt7915: add wds support when wed is enabled

On Mon, 2022-11-21 at 14:29 +0100, Lorenzo Bianconi wrote:
> > The current WED only supports 256 wcid, whereas mt7986 can support
> > up to 512 entries,
> > so firmware provides a rule to get sta_info by DA when wcid is set
> > to 0x3ff by txd.
> > Also, WED provides a register to overwrite txd wcid, that is,
> > wcid[9:8] can
> > be overwritten by 0x3 and wcid[7:0] is set to 0xff by host driver.
> >
> > However, firmware is unable to get sta_info from DA as DA != RA for
> > 4addr cases,
> > so firmware and wifi host driver both use wcid (256 - 271) and (768
> > ~ 783)
> > for sync up to get correct sta_info
> >
> > Tested-by: Sujuan Chen <[email protected]>
> > Co-developed-by: Bo Jiao <[email protected]>
> > Signed-off-by: Bo Jiao <[email protected]>
> > Signed-off-by: Sujuan Chen <[email protected]>
> > ---
> > This patch is based on
> >
https://patchwork.kernel.org/project/linux-mediatek/list/?series=697444
> > ---
> > drivers/net/wireless/mediatek/mt76/mt76.h | 6 +++
> > .../net/wireless/mediatek/mt76/mt7603/main.c | 2 +-
> > .../net/wireless/mediatek/mt76/mt7615/main.c | 2 +-
> > .../wireless/mediatek/mt76/mt7615/pci_init.c | 2 +-
> > .../wireless/mediatek/mt76/mt7615/usb_sdio.c | 2 +-
> > .../net/wireless/mediatek/mt76/mt76x02_util.c | 2 +-
> > .../net/wireless/mediatek/mt76/mt7915/init.c | 2 +-
> > .../net/wireless/mediatek/mt76/mt7915/main.c | 24 +++++++++--
> > .../net/wireless/mediatek/mt76/mt7915/mcu.c | 11 ++++-
> > .../net/wireless/mediatek/mt76/mt7915/mcu.h | 1 +
> > .../net/wireless/mediatek/mt76/mt7915/mmio.c | 3 ++
> > .../net/wireless/mediatek/mt76/mt7921/init.c | 2 +-
> > .../net/wireless/mediatek/mt76/mt7921/main.c | 2 +-
> > .../net/wireless/mediatek/mt76/mt7996/init.c | 2 +-
> > .../net/wireless/mediatek/mt76/mt7996/main.c | 2 +-
> > drivers/net/wireless/mediatek/mt76/util.c | 42
> > ++++++++++++++++++-
> > drivers/net/wireless/mediatek/mt76/util.h | 2 +-
> > 17 files changed, 91 insertions(+), 18 deletions(-)
> >
>
> Hi Sujuan,
>
> I took just a brief look at the patch, but I think you can
> significantly
> reduce the patch size doing something like:
>
> int __mt76_wcid_alloc(u32 *mask, int size, u8 flag)
> {
> ...
> }
>
> static inline int mt76_wcid_alloc(u32 *mask, int size)
> {
> return __mt76_wcid_alloc(, 0);
> }
>
Hi Lore,

ack, thanks. I will do it in v2.

> > diff --git a/drivers/net/wireless/mediatek/mt76/mt76.h
> > b/drivers/net/wireless/mediatek/mt76/mt76.h
> > index 33f87e518d68..1763b582c020 100644
> > --- a/drivers/net/wireless/mediatek/mt76/mt76.h
> > +++ b/drivers/net/wireless/mediatek/mt76/mt76.h
> > @@ -38,6 +38,12 @@
> > #define MT_WED_Q_RX(_n) __MT_WED_Q(MT76_WED_Q_RX, _n)
> > #define MT_WED_Q_TXFREE __MT_WED_Q(MT76_WED_Q_TXFREE,
> > 0)
> >
> > +enum mt76_wed_state {
> > + MT76_WED_DISABLED,
> > + MT76_WED_ACTIVE,
> > + MT76_WED_WDS_ACTIVE,
> > +};
> > +
> > struct mt76_dev;
> > struct mt76_phy;
> > struct mt76_wcid;
> > diff --git a/drivers/net/wireless/mediatek/mt76/mt7603/main.c
> > b/drivers/net/wireless/mediatek/mt76/mt7603/main.c
> > index ca50feb0b3a9..d788bb59a113 100644
> > --- a/drivers/net/wireless/mediatek/mt76/mt7603/main.c
> > +++ b/drivers/net/wireless/mediatek/mt76/mt7603/main.c
> > @@ -347,7 +347,7 @@ mt7603_sta_add(struct mt76_dev *mdev, struct
> > ieee80211_vif *vif,
> > int idx;
> > int ret = 0;
> >
> > - idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7603_WTBL_STA -
> > 1);
> > + idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7603_WTBL_STA - 1,
> > 0);
> > if (idx < 0)
> > return -ENOSPC;
> >
>
> [...]
>
> > mt76_connac_mcu_wtbl_update_hdr_trans(&dev->mt76, vif, sta);
> > }
> >
> > @@ -1448,15 +1462,19 @@ mt7915_net_fill_forward_path(struct
> > ieee80211_hw *hw,
> > if (!mtk_wed_device_active(wed))
> > return -ENODEV;
> >
> > - if (msta->wcid.idx > 0xff)
> > + if (msta->wcid.idx > MT7915_WTBL_STA)
> > return -EIO;
> >
> > path->type = DEV_PATH_MTK_WDMA;
> > path->dev = ctx->dev;
> > path->mtk_wdma.wdma_idx = wed->wdma_idx;
> > path->mtk_wdma.bss = mvif->mt76.idx;
> > - path->mtk_wdma.wcid = is_mt7915(&dev->mt76) ? msta->wcid.idx :
> > 0x3ff;
> > path->mtk_wdma.queue = phy != &dev->phy;
> > + if (test_bit(MT_WCID_FLAG_4ADDR, &msta->wcid.flags) ||
> > + is_mt7915(&dev->mt76))
> > + path->mtk_wdma.wcid = msta->wcid.idx;
> > + else
> > + path->mtk_wdma.wcid = 0x3ff;
> >
> > ctx->dev = NULL;
> >
> > diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
> > b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
> > index 2769d6c897d9..aeeeff9b2143 100644
> > --- a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
> > +++ b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
> > @@ -2303,8 +2303,15 @@ int mt7915_mcu_init_firmware(struct
> > mt7915_dev *dev)
> > if (ret)
> > return ret;
> >
> > - if (mtk_wed_device_active(&dev->mt76.mmio.wed) &&
> > is_mt7915(&dev->mt76))
> > - mt7915_mcu_wa_cmd(dev, MCU_WA_PARAM_CMD(CAPABILITY), 0,
> > 0, 0);
> > + if (mtk_wed_device_active(&dev->mt76.mmio.wed)) {
> > + if (is_mt7915(&dev->mt76))
> > + mt7915_mcu_wa_cmd(dev,
> > MCU_WA_PARAM_CMD(CAPABILITY),
> > + 0, 0, 0);
> > + else
> > + mt7915_mcu_wa_cmd(dev, MCU_WA_PARAM_CMD(SET),
> > + MCU_WA_PARAM_WED_VERSION,
> > + dev->mt76.mmio.wed.rev_id,
> > 0);
> > + }
>
> can you please honor mt7915_mcu_wa_cmd() returned value?
>

Ack.

> >
> > ret = mt7915_mcu_set_mwds(dev, 1);
> > if (ret)
> > diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.h
> > b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.h
> > index c19b5d66c0e1..59e1ea35f77f 100644
> > --- a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.h
> > +++ b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.h
> > @@ -260,6 +260,7 @@ enum {
> > MCU_WA_PARAM_PDMA_RX = 0x04,
> > MCU_WA_PARAM_CPU_UTIL = 0x0b,
> > MCU_WA_PARAM_RED = 0x0e,
> > + MCU_WA_PARAM_WED_VERSION = 0x32,
> > };
> >
> > enum mcu_mmps_mode {
> > diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mmio.c
> > b/drivers/net/wireless/mediatek/mt76/mt7915/mmio.c
> > index 1fcf34f57a16..d90793d082b8 100644
> > --- a/drivers/net/wireless/mediatek/mt76/mt7915/mmio.c
> > +++ b/drivers/net/wireless/mediatek/mt76/mt7915/mmio.c
> > @@ -773,6 +773,9 @@ int mt7915_mmio_wed_init(struct mt7915_dev
> > *dev, void *pdev_ptr,
> >
> > dev->mt76.rx_token_size = wed->wlan.rx_npkt;
> >
> > + if (!is_mt7915(&dev->mt76))
> > + wed->wlan.wcid_512 = true;
> > +
> > if (mtk_wed_device_attach(wed))
> > return 0;
> >
> > diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/init.c
> > b/drivers/net/wireless/mediatek/mt76/mt7921/init.c
> > index 79b8055ce4c4..702ff300f8f7 100644
> > --- a/drivers/net/wireless/mediatek/mt76/mt7921/init.c
> > +++ b/drivers/net/wireless/mediatek/mt76/mt7921/init.c
> > @@ -283,7 +283,7 @@ static int mt7921_init_wcid(struct mt7921_dev
> > *dev)
> > int idx;
> >
> > /* Beacon and mgmt frames should occupy wcid 0 */
> > - idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7921_WTBL_STA -
> > 1);
> > + idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7921_WTBL_STA - 1,
> > 0);
> > if (idx)
> > return -ENOSPC;
> >
> > diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/main.c
> > b/drivers/net/wireless/mediatek/mt76/mt7921/main.c
> > index 41df17efdb3a..3d8771fcb847 100644
> > --- a/drivers/net/wireless/mediatek/mt76/mt7921/main.c
> > +++ b/drivers/net/wireless/mediatek/mt76/mt7921/main.c
> > @@ -814,7 +814,7 @@ int mt7921_mac_sta_add(struct mt76_dev *mdev,
> > struct ieee80211_vif *vif,
> > struct mt7921_vif *mvif = (struct mt7921_vif *)vif->drv_priv;
> > int ret, idx;
> >
> > - idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7921_WTBL_STA -
> > 1);
> > + idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7921_WTBL_STA - 1,
> > 0);
> > if (idx < 0)
> > return -ENOSPC;
> >
> > diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/init.c
> > b/drivers/net/wireless/mediatek/mt76/mt7996/init.c
> > index cd1657e3585d..4cf055040519 100644
> > --- a/drivers/net/wireless/mediatek/mt76/mt7996/init.c
> > +++ b/drivers/net/wireless/mediatek/mt76/mt7996/init.c
> > @@ -433,7 +433,7 @@ static int mt7996_init_hardware(struct
> > mt7996_dev *dev)
> > return ret;
> >
> > /* Beacon and mgmt frames should occupy wcid 0 */
> > - idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7996_WTBL_STA);
> > + idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7996_WTBL_STA, 0);
> > if (idx)
> > return -ENOSPC;
> >
> > diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/main.c
> > b/drivers/net/wireless/mediatek/mt76/mt7996/main.c
> > index 21dea3fa7dc1..fd40b515cc5b 100644
> > --- a/drivers/net/wireless/mediatek/mt76/mt7996/main.c
> > +++ b/drivers/net/wireless/mediatek/mt76/mt7996/main.c
> > @@ -579,7 +579,7 @@ int mt7996_mac_sta_add(struct mt76_dev *mdev,
> > struct ieee80211_vif *vif,
> > u8 band_idx = mvif->phy->mt76->band_idx;
> > int ret, idx;
> >
> > - idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7996_WTBL_STA);
> > + idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7996_WTBL_STA, 0);
> > if (idx < 0)
> > return -ENOSPC;
> >
> > diff --git a/drivers/net/wireless/mediatek/mt76/util.c
> > b/drivers/net/wireless/mediatek/mt76/util.c
> > index 581964425468..0850149f4200 100644
> > --- a/drivers/net/wireless/mediatek/mt76/util.c
> > +++ b/drivers/net/wireless/mediatek/mt76/util.c
> > @@ -42,9 +42,14 @@ bool __mt76_poll_msec(struct mt76_dev *dev, u32
> > offset, u32 mask, u32 val,
> > }
> > EXPORT_SYMBOL_GPL(__mt76_poll_msec);
> >
> > -int mt76_wcid_alloc(u32 *mask, int size)
> > +int mt76_wcid_alloc(u32 *mask, int size, u8 flag)
> > {
> > +#define MT76_WED_WDS_MIN 256
> > +#define MT76_WED_WDS_CNT 16
> > +
> > int i, idx = 0, cur;
> > + int min = MT76_WED_WDS_MIN;
> > + int max = min + MT76_WED_WDS_CNT;
> >
> > for (i = 0; i < DIV_ROUND_UP(size, 32); i++) {
> > idx = ffs(~mask[i]);
> > @@ -53,13 +58,46 @@ int mt76_wcid_alloc(u32 *mask, int size)
> >
> > idx--;
> > cur = i * 32 + idx;
> > - if (cur >= size)
>
> I think it easier to understand the code if you run the code below
> just if wed
> is active, right?
>
> if (!mtk_wed_device_active())
> break;
>

Actually, it's a bit more complicated.
Using only mtk_wed_device_active() cannot cover all cases.
for wed on(MT76_WED_ACTIVE), We should use wcid outside of (256~271).
and when wed on but sta exceeds (512-16), we should use wcid(256~271).
for wed on and sta is wds case(MT76_WED_WDS_ACTIVE), we
use wcid(256~271) .

> Regards,
> Lorenzo
>
> > +
> > + switch (flag) {
> > + case MT76_WED_DISABLED:
> > + if (cur >= size)
> > + goto error;
> > +
> > break;
> > + case MT76_WED_ACTIVE:
> > + if (cur >= min && cur < max)
> > + continue;
> > +
> > + if (cur >= size) {
> > + u32 end = MT76_WED_WDS_CNT - 1;
> > +
> > + i = min / 32;
> > + idx = ffs(~mask[i] & GENMASK(end, 0));
> > + if (!idx)
> > + goto error;
> > + idx--;
> > + cur = min + idx;
> > + }
> > +
> > + break;
> > + case MT76_WED_WDS_ACTIVE:
> > + if (cur < min)
> > + continue;
> > + if (cur >= max)
> > + goto error;
> > +
> > + break;
> > + default:
> > + WARN_ON(1);
> > + break;
> > + }
> >
> > mask[i] |= BIT(idx);
> > return cur;
> > }
> >
> > +error:
> > return -1;
> > }
> > EXPORT_SYMBOL_GPL(mt76_wcid_alloc);
> > diff --git a/drivers/net/wireless/mediatek/mt76/util.h
> > b/drivers/net/wireless/mediatek/mt76/util.h
> > index 260965dde94c..c72460e78389 100644
> > --- a/drivers/net/wireless/mediatek/mt76/util.h
> > +++ b/drivers/net/wireless/mediatek/mt76/util.h
> > @@ -27,7 +27,7 @@ enum {
> > #define MT76_INCR(_var, _size) \
> > (_var = (((_var) + 1) % (_size)))
> >
> > -int mt76_wcid_alloc(u32 *mask, int size);
> > +int mt76_wcid_alloc(u32 *mask, int size, u8 flag);
> >
> > static inline void
> > mt76_wcid_mask_set(u32 *mask, int idx)
> > --
> > 2.18.0
> >

2022-12-06 03:22:20

by Sujuan Chen (陈素娟)

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