diff --git a/target/linux/generic/pending-6.6/730-net-ethernet-mtk_eth_soc-reset-all-TX-queues-on-DMA-.patch b/target/linux/generic/pending-6.6/730-net-ethernet-mtk_eth_soc-reset-all-TX-queues-on-DMA-.patch new file mode 100644 index 00000000000..67d0ab45373 --- /dev/null +++ b/target/linux/generic/pending-6.6/730-net-ethernet-mtk_eth_soc-reset-all-TX-queues-on-DMA-.patch @@ -0,0 +1,49 @@ +From 7d41a5a8e9c91cc6bb011dd953570738583dd091 Mon Sep 17 00:00:00 2001 +From: Daniel Golle +Date: Wed, 18 Sep 2024 02:01:01 +0100 +Subject: [PATCH] net: ethernet: mtk_eth_soc: reset all TX queues on DMA free + +The purpose of resetting the TX queue is to reset the +byte and packet count as well as to clear the software +flow control XOFF bit. + +MediaTek developers pointed out that netdev_reset_queue would only +resets queue 0 of the network device. +Queues that are not reset may cause unexpected issues. + +Packets may stop being sent after reset and "transmit timeout" log may +be displayed. + +Import fix from MediaTek's SDK to resolve this issue. + +Signed-off-by: Daniel Golle +--- + drivers/net/ethernet/mediatek/mtk_eth_soc.c | 18 ++++++++++++++---- + 1 file changed, 14 insertions(+), 4 deletions(-) + +--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c ++++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c +@@ -3135,11 +3135,19 @@ static int mtk_dma_init(struct mtk_eth * + static void mtk_dma_free(struct mtk_eth *eth) + { + const struct mtk_soc_data *soc = eth->soc; +- int i; ++ int i, j, txqs = 1; ++ ++ if (MTK_HAS_CAPS(eth->soc->caps, MTK_QDMA)) ++ txqs = MTK_QDMA_NUM_QUEUES; ++ ++ for (i = 0; i < MTK_MAX_DEVS; i++) { ++ if (!eth->netdev[i]) ++ continue; ++ ++ for (j = 0; j < txqs; j++) ++ netdev_tx_reset_queue(netdev_get_tx_queue(eth->netdev[i], j)); ++ } + +- for (i = 0; i < MTK_MAX_DEVS; i++) +- if (eth->netdev[i]) +- netdev_reset_queue(eth->netdev[i]); + if (!MTK_HAS_CAPS(soc->caps, MTK_SRAM) && eth->scratch_ring) { + dma_free_coherent(eth->dma_dev, + MTK_QDMA_RING_SIZE * soc->tx.desc_size, diff --git a/target/linux/generic/pending-6.6/737-net-ethernet-mtk_eth_soc-add-paths-and-SerDes-modes-.patch b/target/linux/generic/pending-6.6/737-net-ethernet-mtk_eth_soc-add-paths-and-SerDes-modes-.patch index f9e10e57335..3e3b7f60741 100644 --- a/target/linux/generic/pending-6.6/737-net-ethernet-mtk_eth_soc-add-paths-and-SerDes-modes-.patch +++ b/target/linux/generic/pending-6.6/737-net-ethernet-mtk_eth_soc-add-paths-and-SerDes-modes-.patch @@ -490,7 +490,7 @@ Signed-off-by: Daniel Golle .mac_finish = mtk_mac_finish, .mac_link_down = mtk_mac_link_down, .mac_link_up = mtk_mac_link_up, -@@ -3407,6 +3548,9 @@ static int mtk_open(struct net_device *d +@@ -3415,6 +3556,9 @@ static int mtk_open(struct net_device *d ppe_num = eth->soc->ppe_num; @@ -500,7 +500,7 @@ Signed-off-by: Daniel Golle err = phylink_of_phy_connect(mac->phylink, mac->of_node, 0); if (err) { netdev_err(dev, "%s: could not attach PHY: %d\n", __func__, -@@ -3557,6 +3701,9 @@ static int mtk_stop(struct net_device *d +@@ -3565,6 +3709,9 @@ static int mtk_stop(struct net_device *d for (i = 0; i < ARRAY_SIZE(eth->ppe); i++) mtk_ppe_stop(eth->ppe[i]); @@ -510,7 +510,7 @@ Signed-off-by: Daniel Golle return 0; } -@@ -4570,6 +4717,7 @@ static const struct net_device_ops mtk_n +@@ -4578,6 +4725,7 @@ static const struct net_device_ops mtk_n static int mtk_add_mac(struct mtk_eth *eth, struct device_node *np) { const __be32 *_id = of_get_property(np, "reg", NULL); @@ -518,7 +518,7 @@ Signed-off-by: Daniel Golle phy_interface_t phy_mode; struct phylink *phylink; struct mtk_mac *mac; -@@ -4606,16 +4754,41 @@ static int mtk_add_mac(struct mtk_eth *e +@@ -4614,16 +4762,41 @@ static int mtk_add_mac(struct mtk_eth *e mac->id = id; mac->hw = eth; mac->of_node = np; @@ -568,7 +568,7 @@ Signed-off-by: Daniel Golle } memset(mac->hwlro_ip, 0, sizeof(mac->hwlro_ip)); -@@ -4698,8 +4871,21 @@ static int mtk_add_mac(struct mtk_eth *e +@@ -4706,8 +4879,21 @@ static int mtk_add_mac(struct mtk_eth *e phy_interface_zero(mac->phylink_config.supported_interfaces); __set_bit(PHY_INTERFACE_MODE_INTERNAL, mac->phylink_config.supported_interfaces); @@ -590,7 +590,7 @@ Signed-off-by: Daniel Golle phylink = phylink_create(&mac->phylink_config, of_fwnode_handle(mac->of_node), phy_mode, &mtk_phylink_ops); -@@ -4750,6 +4936,26 @@ free_netdev: +@@ -4758,6 +4944,26 @@ free_netdev: return err; } @@ -617,7 +617,7 @@ Signed-off-by: Daniel Golle void mtk_eth_set_dma_device(struct mtk_eth *eth, struct device *dma_dev) { struct net_device *dev, *tmp; -@@ -4896,7 +5102,8 @@ static int mtk_probe(struct platform_dev +@@ -4904,7 +5110,8 @@ static int mtk_probe(struct platform_dev regmap_write(cci, 0, 3); } @@ -627,7 +627,7 @@ Signed-off-by: Daniel Golle err = mtk_sgmii_init(eth); if (err) -@@ -5007,6 +5214,24 @@ static int mtk_probe(struct platform_dev +@@ -5015,6 +5222,24 @@ static int mtk_probe(struct platform_dev } } @@ -652,7 +652,7 @@ Signed-off-by: Daniel Golle if (MTK_HAS_CAPS(eth->soc->caps, MTK_SHARED_INT)) { err = devm_request_irq(eth->dev, eth->irq[0], mtk_handle_irq, 0, -@@ -5110,6 +5335,11 @@ static int mtk_remove(struct platform_de +@@ -5118,6 +5343,11 @@ static int mtk_remove(struct platform_de mtk_stop(eth->netdev[i]); mac = netdev_priv(eth->netdev[i]); phylink_disconnect_phy(mac->phylink);