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Sat, 3 Aug 2024 07:58:54 +0000 Received: from TY3P286MB2611.JPNP286.PROD.OUTLOOK.COM ([fe80::85b8:3d49:3d3e:2b3]) by TY3P286MB2611.JPNP286.PROD.OUTLOOK.COM ([fe80::85b8:3d49:3d3e:2b3%6]) with mapi id 15.20.7828.023; Sat, 3 Aug 2024 07:58:54 +0000 From: Shengyu Qu To: nbd@nbd.name, lorenzo@kernel.org, ryder.lee@mediatek.com, shayne.chen@mediatek.com, sean.wang@mediatek.com, kvalo@kernel.org, matthias.bgg@gmail.com, angelogioacchino.delregno@collabora.com, chui-hao.chiu@mediatek.com, emmanuel.grumbach@intel.com, StanleyYP.Wang@mediatek.com, meichia.chiu@mediatek.com, johannes.berg@intel.com, quic_adisi@quicinc.com, allen.ye@mediatek.com, bo.jiao@mediatek.com, linux-wireless@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org Cc: Shengyu Qu , Sujuan Chen Subject: [PATCH v5] wifi: mt76: mt7915: add wds support when wed is enabled Date: Sat, 3 Aug 2024 15:58:15 +0800 Message-ID: X-Mailer: git-send-email 2.34.1 X-TMN: [c+oOAfQHr8hOBzn6C1UvxpAD1i5lwb6u] X-ClientProxiedBy: SG2P153CA0051.APCP153.PROD.OUTLOOK.COM (2603:1096:4:c6::20) To TY3P286MB2611.JPNP286.PROD.OUTLOOK.COM (2603:1096:400:23e::10) X-Microsoft-Original-Message-ID: <20240803075815.19128-1-wiagn233@outlook.com> Precedence: bulk X-Mailing-List: linux-wireless@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: TY3P286MB2611:EE_|OS3P286MB3193:EE_ X-MS-Office365-Filtering-Correlation-Id: e9fb4d5c-3ffa-426c-e171-08dcb3921e0d X-Microsoft-Antispam: BCL:0; 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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. Currently WDS+WED config is completely broken on MT7986/7981 devices if without this patch. Tested-by: Sujuan Chen Co-developed-by: Bo Jiao Signed-off-by: Bo Jiao Signed-off-by: Sujuan Chen Signed-off-by: Shengyu Qu --- Changes since v1: - Drop duplicate setting in mmio - Reduce the patch size by redefining mt76_wcid_alloc Changes since v2: - Rework wds wcid getting flow Changes since v3: - Rebase to next-20240703 - Sync with downstream patch Changes since v4: - Rebase to next-20240802 --- drivers/net/wireless/mediatek/mt76/mt76.h | 9 +++++ .../net/wireless/mediatek/mt76/mt7915/main.c | 32 ++++++++++++++-- .../net/wireless/mediatek/mt76/mt7915/mcu.c | 16 ++++++-- .../net/wireless/mediatek/mt76/mt7915/mcu.h | 1 + drivers/net/wireless/mediatek/mt76/util.c | 37 +++++++++++++++++-- drivers/net/wireless/mediatek/mt76/util.h | 7 +++- 6 files changed, 91 insertions(+), 11 deletions(-) diff --git a/drivers/net/wireless/mediatek/mt76/mt76.h b/drivers/net/wireless/mediatek/mt76/mt76.h index 4a58a78d5ed25..1186a4998faff 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76.h +++ b/drivers/net/wireless/mediatek/mt76/mt76.h @@ -28,6 +28,9 @@ #define MT76_TOKEN_FREE_THR 64 +#define MT76_WED_WDS_MIN 256 +#define MT76_WED_WDS_MAX 272 + #define MT_QFLAG_WED_RING GENMASK(1, 0) #define MT_QFLAG_WED_TYPE GENMASK(4, 2) #define MT_QFLAG_WED BIT(5) @@ -71,6 +74,12 @@ enum mt76_wed_type { MT76_WED_RRO_Q_IND, }; +enum mt76_wed_state { + MT76_WED_DEFAULT, + MT76_WED_ACTIVE, + MT76_WED_WDS_ACTIVE, +}; + struct mt76_bus_ops { u32 (*rr)(struct mt76_dev *dev, u32 offset); void (*wr)(struct mt76_dev *dev, u32 offset, u32 val); diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/main.c b/drivers/net/wireless/mediatek/mt76/mt7915/main.c index 049223df9beb1..dc4d87e004a0f 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7915/main.c +++ b/drivers/net/wireless/mediatek/mt76/mt7915/main.c @@ -745,8 +745,15 @@ int mt7915_mac_sta_add(struct mt76_dev *mdev, struct ieee80211_vif *vif, bool ext_phy = mvif->phy != &dev->phy; int ret, idx; u32 addr; + u8 flags = MT76_WED_DEFAULT; - idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7915_WTBL_STA); + if (mtk_wed_device_active(&dev->mt76.mmio.wed) && + !is_mt7915(&dev->mt76)) { + flags = 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, flags); if (idx < 0) return -ENOSPC; @@ -1201,12 +1208,27 @@ static void mt7915_sta_set_4addr(struct ieee80211_hw *hw, { struct mt7915_dev *dev = mt7915_hw_dev(hw); struct mt7915_sta *msta = (struct mt7915_sta *)sta->drv_priv; + int min = MT76_WED_WDS_MIN, max = MT76_WED_WDS_MAX; if (enabled) set_bit(MT_WCID_FLAG_4ADDR, &msta->wcid.flags); else clear_bit(MT_WCID_FLAG_4ADDR, &msta->wcid.flags); + if (mtk_wed_device_active(&dev->mt76.mmio.wed) && + !is_mt7915(&dev->mt76) && + (msta->wcid.idx < min || msta->wcid.idx > max - 1)) { + struct ieee80211_sta *pre_sta; + + pre_sta = kzalloc(sizeof(*sta) + sizeof(*msta), GFP_KERNEL); + mt76_sta_pre_rcu_remove(hw, vif, sta); + memmove(pre_sta, sta, sizeof(*sta) + sizeof(*msta)); + mt7915_sta_add(hw, vif, sta); + synchronize_rcu(); + mt7915_sta_remove(hw, vif, pre_sta); + kfree(pre_sta); + } + mt76_connac_mcu_wtbl_update_hdr_trans(&dev->mt76, vif, sta); } @@ -1644,15 +1666,19 @@ 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 2185cd24e2e1c..0f715a4c21ada 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c +++ b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c @@ -2352,10 +2352,18 @@ 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)) || - !mtk_wed_get_rx_capa(&dev->mt76.mmio.wed)) - 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) || + !mtk_wed_get_rx_capa(&dev->mt76.mmio.wed)) + ret = mt7915_mcu_wa_cmd(dev, MCU_WA_PARAM_CMD(CAPABILITY), + 0, 0, 0); + else + ret = mt7915_mcu_wa_cmd(dev, MCU_WA_PARAM_CMD(SET), + MCU_WA_PARAM_WED_VERSION, + dev->mt76.mmio.wed.rev_id, 0); + if (ret) + return ret; + } 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 b41ac4aaced7f..b2bf5472b2d70 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.h +++ b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.h @@ -279,6 +279,7 @@ enum { MCU_WA_PARAM_CPU_UTIL = 0x0b, MCU_WA_PARAM_RED = 0x0e, MCU_WA_PARAM_RED_SETTING = 0x40, + MCU_WA_PARAM_WED_VERSION = 0x32, }; enum mcu_mmps_mode { diff --git a/drivers/net/wireless/mediatek/mt76/util.c b/drivers/net/wireless/mediatek/mt76/util.c index d6c01a2dd1988..461b74068fc30 100644 --- a/drivers/net/wireless/mediatek/mt76/util.c +++ b/drivers/net/wireless/mediatek/mt76/util.c @@ -42,9 +42,11 @@ 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) { int i, idx = 0, cur; + int min = MT76_WED_WDS_MIN; + int max = MT76_WED_WDS_MAX; for (i = 0; i < DIV_ROUND_UP(size, 32); i++) { idx = ffs(~mask[i]); @@ -53,16 +55,45 @@ int mt76_wcid_alloc(u32 *mask, int size) idx--; cur = i * 32 + idx; - if (cur >= size) + + switch (flag) { + case MT76_WED_ACTIVE: + if (cur >= min && cur < max) + continue; + + if (cur >= size) { + u32 end = max - min - 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: + if (cur >= size) + goto error; + break; + } mask[i] |= BIT(idx); return cur; } +error: return -1; } -EXPORT_SYMBOL_GPL(mt76_wcid_alloc); +EXPORT_SYMBOL_GPL(__mt76_wcid_alloc); int mt76_get_min_avg_rssi(struct mt76_dev *dev, bool ext_phy) { diff --git a/drivers/net/wireless/mediatek/mt76/util.h b/drivers/net/wireless/mediatek/mt76/util.h index 260965dde94cf..99b7263c0a205 100644 --- a/drivers/net/wireless/mediatek/mt76/util.h +++ b/drivers/net/wireless/mediatek/mt76/util.h @@ -27,7 +27,12 @@ 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 flags); + +static inline int mt76_wcid_alloc(u32 *mask, int size) +{ + return __mt76_wcid_alloc(mask, size, 0); +} static inline void mt76_wcid_mask_set(u32 *mask, int idx)