| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-ID: <aIeXKRmGxDROUDHt@lore-rh-laptop>
Date: Mon, 28 Jul 2025 17:28:41 +0200
From: Lorenzo Bianconi <lorenzo@...nel.org>
To: Dawid Osuchowski <dawid.osuchowski@...ux.intel.com>
Cc: Felix Fietkau <nbd@....name>, Sean Wang <sean.wang@...iatek.com>,
Andrew Lunn <andrew+netdev@...n.ch>,
"David S. Miller" <davem@...emloft.net>,
Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
Matthias Brugger <matthias.bgg@...il.com>,
AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
Ryder Lee <ryder.lee@...iatek.com>,
Shayne Chen <shayne.chen@...iatek.com>, netdev@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org,
linux-mediatek@...ts.infradead.org, linux-wireless@...r.kernel.org,
Rex Lu <rex.lu@...iatek.com>
Subject: Re: [PATCH net-next] net: mediatek: wed: Introduce MT7992 WED support
> On 2025-07-27 2:50 PM, Lorenzo Bianconi wrote:
> > Introduce the second WDMA RX ring in WED driver since Meditake MT7992
>
> s/Meditake/Mediatek
ack, I will fix it in v2.
>
> > WiFi chipset support two separated WDMA rings. This is a preliminary
>
> s/support/supports
ack, I will fix it in v2.
>
> > patch to properly support WED for MT7992 in MT76 driver.
> >
> > Co-developed-by: Rex Lu <rex.lu@...iatek.com>
> > Signed-off-by: Rex Lu <rex.lu@...iatek.com>
> > Signed-off-by: Lorenzo Bianconi <lorenzo@...nel.org>
> > ---
> > drivers/net/ethernet/mediatek/mtk_wed.c | 33 +++++++++++++++++++-----
> > drivers/net/ethernet/mediatek/mtk_wed.h | 2 +-
> > drivers/net/wireless/mediatek/mt76/mt7915/mmio.c | 6 ++---
> > drivers/net/wireless/mediatek/mt76/mt7996/mmio.c | 12 ++++-----
> > include/linux/soc/mediatek/mtk_wed.h | 2 +-
> > 5 files changed, 38 insertions(+), 17 deletions(-)
> >
> > diff --git a/drivers/net/ethernet/mediatek/mtk_wed.c b/drivers/net/ethernet/mediatek/mtk_wed.c
> > index 73c26fcfd85e7be3040abea8e80ff4bee881016c..44a7b4b9d5a4e7cb2c6173ff97024ef74c241058 100644
> > --- a/drivers/net/ethernet/mediatek/mtk_wed.c
> > +++ b/drivers/net/ethernet/mediatek/mtk_wed.c
> > @@ -59,7 +59,9 @@ struct mtk_wed_flow_block_priv {
> > static const struct mtk_wed_soc_data mt7622_data = {
> > .regmap = {
> > .tx_bm_tkid = 0x088,
> > - .wpdma_rx_ring0 = 0x770,
> > + .wpdma_rx_ring = {
> > + 0x770,
> > + },
> > .reset_idx_tx_mask = GENMASK(3, 0),
> > .reset_idx_rx_mask = GENMASK(17, 16),
> > },
> > @@ -70,7 +72,9 @@ static const struct mtk_wed_soc_data mt7622_data = {
> > static const struct mtk_wed_soc_data mt7986_data = {
> > .regmap = {
> > .tx_bm_tkid = 0x0c8,
> > - .wpdma_rx_ring0 = 0x770,
> > + .wpdma_rx_ring = {
> > + 0x770,
> > + },
> > .reset_idx_tx_mask = GENMASK(1, 0),
> > .reset_idx_rx_mask = GENMASK(7, 6),
> > },
> > @@ -81,7 +85,10 @@ static const struct mtk_wed_soc_data mt7986_data = {
> > static const struct mtk_wed_soc_data mt7988_data = {
>
> In the patch description you mention the mt7992 chip, however you are adding
> a second rx_ring definition for the mt7988, is this correct?
yes, since MT7992 is the WiFi chiset that is the WED funcationality consumer
while MT7988 is the SoC ethernet controller. I will add more info in the commit
log.
>
> > .regmap = {
> > .tx_bm_tkid = 0x0c8,
> > - .wpdma_rx_ring0 = 0x7d0,
> > + .wpdma_rx_ring = {
> > + 0x7d0,
> > + 0x7d8,
> > + },
> > .reset_idx_tx_mask = GENMASK(1, 0),
> > .reset_idx_rx_mask = GENMASK(7, 6),
> > },
> > @@ -621,8 +628,8 @@ mtk_wed_amsdu_init(struct mtk_wed_device *dev)
> > return ret;
> > }
> > - /* eagle E1 PCIE1 tx ring 22 flow control issue */
> > - if (dev->wlan.id == 0x7991)
> > + /* Kite and Eagle E1 PCIE1 tx ring 22 flow control issue */
> > + if (dev->wlan.id == 0x7991 || dev->wlan.id == 0x7992)
> > wed_clr(dev, MTK_WED_AMSDU_FIFO, MTK_WED_AMSDU_IS_PRIOR0_RING);
> > wed_set(dev, MTK_WED_CTRL, MTK_WED_CTRL_TX_AMSDU_EN);
> > @@ -1239,7 +1246,11 @@ mtk_wed_set_wpdma(struct mtk_wed_device *dev)
> > return;
> > wed_w32(dev, MTK_WED_WPDMA_RX_GLO_CFG, dev->wlan.wpdma_rx_glo);
> > - wed_w32(dev, dev->hw->soc->regmap.wpdma_rx_ring0, dev->wlan.wpdma_rx);
> > + wed_w32(dev, dev->hw->soc->regmap.wpdma_rx_ring[0],
> > + dev->wlan.wpdma_rx[0]);
> > + if (mtk_wed_is_v3(dev->hw))
>
> You also have mtk_wed_is_v3_or_greater() defined in the header, why not use
> that?
ack, I will fix it in v2.
Regards,
Lorenzo
>
> > + wed_w32(dev, dev->hw->soc->regmap.wpdma_rx_ring[1],
> > + dev->wlan.wpdma_rx[1]);
> > if (!dev->wlan.hw_rro)
> > return;
> > @@ -2323,6 +2334,16 @@ mtk_wed_start(struct mtk_wed_device *dev, u32 irq_mask)
> > if (!dev->rx_wdma[i].desc)
> > mtk_wed_wdma_rx_ring_setup(dev, i, 16, false);
> > + if (dev->wlan.hw_rro) {
> > + for (i = 0; i < MTK_WED_RX_PAGE_QUEUES; i++) {
> > + u32 addr = MTK_WED_RRO_MSDU_PG_CTRL0(i) +
> > + MTK_WED_RING_OFS_COUNT;
> > +
> > + if (!wed_r32(dev, addr))
> > + wed_w32(dev, addr, 1);
> > + }
> > + }
> > +
> > mtk_wed_hw_init(dev);
> > mtk_wed_configure_irq(dev, irq_mask);
> > diff --git a/drivers/net/ethernet/mediatek/mtk_wed.h b/drivers/net/ethernet/mediatek/mtk_wed.h
> > index c1f0479d7a7182919e77c40efc30ade37abfad58..b49aee9a8b65156310e4f66a17921e5320b3077c 100644
> > --- a/drivers/net/ethernet/mediatek/mtk_wed.h
> > +++ b/drivers/net/ethernet/mediatek/mtk_wed.h
> > @@ -17,7 +17,7 @@ struct mtk_wed_wo;
> > struct mtk_wed_soc_data {
> > struct {
> > u32 tx_bm_tkid;
> > - u32 wpdma_rx_ring0;
> > + u32 wpdma_rx_ring[MTK_WED_RX_QUEUES];
> > u32 reset_idx_tx_mask;
> > u32 reset_idx_rx_mask;
> > } regmap;
> > diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mmio.c b/drivers/net/wireless/mediatek/mt76/mt7915/mmio.c
> > index 4a82f8e4c118061fc76459dc0e38f7ee27e25a3a..36488aa6cc20117de4f5b76b80beca149015e055 100644
> > --- a/drivers/net/wireless/mediatek/mt76/mt7915/mmio.c
> > +++ b/drivers/net/wireless/mediatek/mt76/mt7915/mmio.c
> > @@ -664,8 +664,8 @@ int mt7915_mmio_wed_init(struct mt7915_dev *dev, void *pdev_ptr,
> > MT_RXQ_WED_RING_BASE;
> > wed->wlan.wpdma_rx_glo = pci_resource_start(pci_dev, 0) +
> > MT_WPDMA_GLO_CFG;
> > - wed->wlan.wpdma_rx = pci_resource_start(pci_dev, 0) +
> > - MT_RXQ_WED_DATA_RING_BASE;
> > + wed->wlan.wpdma_rx[0] = pci_resource_start(pci_dev, 0) +
> > + MT_RXQ_WED_DATA_RING_BASE;
> > } else {
> > struct platform_device *plat_dev = pdev_ptr;
> > struct resource *res;
> > @@ -687,7 +687,7 @@ int mt7915_mmio_wed_init(struct mt7915_dev *dev, void *pdev_ptr,
> > wed->wlan.wpdma_tx = res->start + MT_TXQ_WED_RING_BASE;
> > wed->wlan.wpdma_txfree = res->start + MT_RXQ_WED_RING_BASE;
> > wed->wlan.wpdma_rx_glo = res->start + MT_WPDMA_GLO_CFG;
> > - wed->wlan.wpdma_rx = res->start + MT_RXQ_WED_DATA_RING_BASE;
> > + wed->wlan.wpdma_rx[0] = res->start + MT_RXQ_WED_DATA_RING_BASE;
> > }
> > wed->wlan.nbuf = MT7915_HW_TOKEN_SIZE;
> > wed->wlan.tx_tbit[0] = is_mt7915(&dev->mt76) ? 4 : 30;
> > diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/mmio.c b/drivers/net/wireless/mediatek/mt76/mt7996/mmio.c
> > index 30b40f4a91be81d429d11f15036167396756d2dc..fb2428a9b877899a0a6fb879aba84e1f6e7840f2 100644
> > --- a/drivers/net/wireless/mediatek/mt76/mt7996/mmio.c
> > +++ b/drivers/net/wireless/mediatek/mt76/mt7996/mmio.c
> > @@ -503,9 +503,9 @@ int mt7996_mmio_wed_init(struct mt7996_dev *dev, void *pdev_ptr,
> > }
> > wed->wlan.wpdma_rx_glo = wed->wlan.phy_base + hif1_ofs + MT_WFDMA0_GLO_CFG;
> > - wed->wlan.wpdma_rx = wed->wlan.phy_base + hif1_ofs +
> > - MT_RXQ_RING_BASE(MT7996_RXQ_BAND0) +
> > - MT7996_RXQ_BAND0 * MT_RING_SIZE;
> > + wed->wlan.wpdma_rx[0] = wed->wlan.phy_base + hif1_ofs +
> > + MT_RXQ_RING_BASE(MT7996_RXQ_BAND0) +
> > + MT7996_RXQ_BAND0 * MT_RING_SIZE;
> > wed->wlan.id = MT7996_DEVICE_ID_2;
> > wed->wlan.tx_tbit[0] = ffs(MT_INT_TX_DONE_BAND2) - 1;
> > @@ -518,9 +518,9 @@ int mt7996_mmio_wed_init(struct mt7996_dev *dev, void *pdev_ptr,
> > wed->wlan.wpdma_rx_glo = wed->wlan.phy_base + MT_WFDMA0_GLO_CFG;
> > - wed->wlan.wpdma_rx = wed->wlan.phy_base +
> > - MT_RXQ_RING_BASE(MT7996_RXQ_BAND0) +
> > - MT7996_RXQ_BAND0 * MT_RING_SIZE;
> > + wed->wlan.wpdma_rx[0] = wed->wlan.phy_base +
> > + MT_RXQ_RING_BASE(MT7996_RXQ_BAND0) +
> > + MT7996_RXQ_BAND0 * MT_RING_SIZE;
> > wed->wlan.wpdma_rx_rro[0] = wed->wlan.phy_base +
> > MT_RXQ_RING_BASE(MT7996_RXQ_RRO_BAND0) +
> > diff --git a/include/linux/soc/mediatek/mtk_wed.h b/include/linux/soc/mediatek/mtk_wed.h
> > index d8949a4ed0dc9d41b3364e85a21e15d258519c45..c4ff6bab176db1f51cd94ac4198df0caeb557df2 100644
> > --- a/include/linux/soc/mediatek/mtk_wed.h
> > +++ b/include/linux/soc/mediatek/mtk_wed.h
> > @@ -147,7 +147,7 @@ struct mtk_wed_device {
> > u32 wpdma_tx;
> > u32 wpdma_txfree;
> > u32 wpdma_rx_glo;
> > - u32 wpdma_rx;
> > + u32 wpdma_rx[MTK_WED_RX_QUEUES];
> > u32 wpdma_rx_rro[MTK_WED_RX_QUEUES];
> > u32 wpdma_rx_pg;
> >
> > ---
> > base-commit: fa582ca7e187a15e772e6a72fe035f649b387a60
> > change-id: 20250718-mt7992-wed-support-456a50d51f81
>
> Best,
> Dawid
Download attachment "signature.asc" of type "application/pgp-signature" (229 bytes)
Powered by blists - more mailing lists