From: Felix Fietkau Date: Wed, 9 Sep 2020 09:51:21 +0000 (+0200) Subject: mediatek/ramips: remove an ethernet optimization patch that was reported to cause... X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=668c988fc5e1d028dc1b9dfed8ed332b0a9073c8;p=openwrt%2Fstaging%2Frobimarko.git mediatek/ramips: remove an ethernet optimization patch that was reported to cause a regression In some tests, crashes were observed Signed-off-by: Felix Fietkau --- diff --git a/target/linux/generic/pending-5.4/770-07-net-ethernet-mtk_eth_soc-drop-descriptor-cpu-own-bit.patch b/target/linux/generic/pending-5.4/770-07-net-ethernet-mtk_eth_soc-drop-descriptor-cpu-own-bit.patch deleted file mode 100644 index 0a9dfd68a1..0000000000 --- a/target/linux/generic/pending-5.4/770-07-net-ethernet-mtk_eth_soc-drop-descriptor-cpu-own-bit.patch +++ /dev/null @@ -1,34 +0,0 @@ -From: Felix Fietkau -Date: Wed, 26 Aug 2020 17:48:14 +0200 -Subject: [PATCH] net: ethernet: mtk_eth_soc: drop descriptor cpu-own bit check - in qdma tx cleanup - -mtk_poll_tx_qdma already checks the MTK_QTX_DRX_PTR register, which points -at the last completed descriptor. -To slightly improve performance, also remove the register bit which forces -the hardware to write back this bit earlier. - -Signed-off-by: Felix Fietkau ---- - ---- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c -+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c -@@ -1368,9 +1368,6 @@ static int mtk_poll_tx_qdma(struct mtk_e - int mac = 0; - - desc = mtk_qdma_phys_to_virt(ring, desc->txd2); -- if ((desc->txd3 & TX_DMA_OWNER_CPU) == 0) -- break; -- - tx_buf = mtk_desc_to_tx_buf(ring, desc); - if (tx_buf->flags & MTK_TX_FLAGS_FPORT1) - mac = 1; -@@ -2203,7 +2200,7 @@ static int mtk_start_dma(struct mtk_eth - - if (MTK_HAS_CAPS(eth->soc->caps, MTK_QDMA)) { - mtk_w32(eth, -- MTK_TX_WB_DDONE | MTK_TX_DMA_EN | -+ MTK_TX_DMA_EN | - MTK_TX_BT_32DWORDS | MTK_NDP_CO_PRO | - MTK_RX_DMA_EN | MTK_RX_2B_OFFSET | - MTK_RX_BT_32DWORDS, diff --git a/target/linux/generic/pending-5.4/770-08-net-ethernet-mtk_eth_soc-cache-hardware-pointer-of-l.patch b/target/linux/generic/pending-5.4/770-08-net-ethernet-mtk_eth_soc-cache-hardware-pointer-of-l.patch index ddbd751ead..29dfd932e7 100644 --- a/target/linux/generic/pending-5.4/770-08-net-ethernet-mtk_eth_soc-cache-hardware-pointer-of-l.patch +++ b/target/linux/generic/pending-5.4/770-08-net-ethernet-mtk_eth_soc-cache-hardware-pointer-of-l.patch @@ -20,7 +20,7 @@ Signed-off-by: Felix Fietkau dma = mtk_r32(eth, MTK_QTX_DRX_PTR); desc = mtk_qdma_phys_to_virt(ring, cpu); -@@ -1389,6 +1389,7 @@ static int mtk_poll_tx_qdma(struct mtk_e +@@ -1392,6 +1392,7 @@ static int mtk_poll_tx_qdma(struct mtk_e cpu = next_cpu; } @@ -28,7 +28,7 @@ Signed-off-by: Felix Fietkau mtk_w32(eth, cpu, MTK_QTX_CRX_PTR); return budget; -@@ -1589,6 +1590,7 @@ static int mtk_tx_alloc(struct mtk_eth * +@@ -1592,6 +1593,7 @@ static int mtk_tx_alloc(struct mtk_eth * atomic_set(&ring->free_count, MTK_DMA_SIZE - 2); ring->next_free = &ring->dma[0]; ring->last_free = &ring->dma[MTK_DMA_SIZE - 1]; @@ -36,7 +36,7 @@ Signed-off-by: Felix Fietkau ring->thresh = MAX_SKB_FRAGS; /* make sure that all changes to the dma ring are flushed before we -@@ -1602,9 +1604,7 @@ static int mtk_tx_alloc(struct mtk_eth * +@@ -1605,9 +1607,7 @@ static int mtk_tx_alloc(struct mtk_eth * mtk_w32(eth, ring->phys + ((MTK_DMA_SIZE - 1) * sz), MTK_QTX_CRX_PTR); diff --git a/target/linux/generic/pending-5.4/770-11-net-ethernet-mtk_eth_soc-avoid-rearming-interrupt-if.pa b/target/linux/generic/pending-5.4/770-11-net-ethernet-mtk_eth_soc-avoid-rearming-interrupt-if.pa index c8d17aefa8..e56799eb16 100644 --- a/target/linux/generic/pending-5.4/770-11-net-ethernet-mtk_eth_soc-avoid-rearming-interrupt-if.pa +++ b/target/linux/generic/pending-5.4/770-11-net-ethernet-mtk_eth_soc-avoid-rearming-interrupt-if.pa @@ -10,7 +10,7 @@ Signed-off-by: Felix Fietkau --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c -@@ -1512,8 +1512,8 @@ static int mtk_napi_tx(struct napi_struc +@@ -1515,8 +1515,8 @@ static int mtk_napi_tx(struct napi_struc if (status & MTK_TX_DONE_INT) return budget; @@ -21,7 +21,7 @@ Signed-off-by: Felix Fietkau return tx_done; } -@@ -1546,8 +1546,9 @@ poll_again: +@@ -1549,8 +1549,9 @@ poll_again: remain_budget -= rx_done; goto poll_again; } diff --git a/target/linux/mediatek/patches-5.4/0999-hnat.patch b/target/linux/mediatek/patches-5.4/0999-hnat.patch index cd0ad54c7e..50850a906e 100644 --- a/target/linux/mediatek/patches-5.4/0999-hnat.patch +++ b/target/linux/mediatek/patches-5.4/0999-hnat.patch @@ -147,7 +147,7 @@ #include "mtk_eth_soc.h" -@@ -1319,8 +1321,16 @@ static int mtk_poll_rx(struct napi_struc +@@ -1320,8 +1322,16 @@ static int mtk_poll_rx(struct napi_struc (trxd.rxd2 & RX_DMA_VTAG)) __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), RX_DMA_VID(trxd.rxd3)); @@ -166,7 +166,7 @@ skip_rx: ring->data[idx] = new_data; -@@ -2251,6 +2261,9 @@ static int mtk_open(struct net_device *d +@@ -2255,6 +2265,9 @@ static int mtk_open(struct net_device *d mtk_tx_irq_enable(eth, MTK_TX_DONE_INT); mtk_rx_irq_enable(eth, MTK_RX_DONE_INT); refcount_set(ð->dma_refcnt, 1); @@ -176,7 +176,7 @@ } else refcount_inc(ð->dma_refcnt); -@@ -2312,6 +2325,9 @@ static int mtk_stop(struct net_device *d +@@ -2316,6 +2329,9 @@ static int mtk_stop(struct net_device *d mtk_dma_free(eth); @@ -186,7 +186,7 @@ return 0; } -@@ -2825,6 +2841,27 @@ static int mtk_set_rxnfc(struct net_devi +@@ -2829,6 +2845,27 @@ static int mtk_set_rxnfc(struct net_devi return ret; } @@ -214,7 +214,7 @@ static const struct ethtool_ops mtk_ethtool_ops = { .get_link_ksettings = mtk_get_link_ksettings, .set_link_ksettings = mtk_set_link_ksettings, -@@ -2856,6 +2893,9 @@ static const struct net_device_ops mtk_n +@@ -2860,6 +2897,9 @@ static const struct net_device_ops mtk_n #ifdef CONFIG_NET_POLL_CONTROLLER .ndo_poll_controller = mtk_poll_controller, #endif @@ -224,7 +224,7 @@ }; static int mtk_add_mac(struct mtk_eth *eth, struct device_node *np) -@@ -3198,6 +3238,7 @@ static const struct mtk_soc_data mt7622_ +@@ -3202,6 +3242,7 @@ static const struct mtk_soc_data mt7622_ .hw_features = MTK_HW_FEATURES, .required_clks = MT7622_CLKS_BITMAP, .required_pctl = false, diff --git a/target/linux/mediatek/patches-5.4/1000-eth-gdm-config-backport.patch b/target/linux/mediatek/patches-5.4/1000-eth-gdm-config-backport.patch index 38addd36ed..a2acadfd90 100644 --- a/target/linux/mediatek/patches-5.4/1000-eth-gdm-config-backport.patch +++ b/target/linux/mediatek/patches-5.4/1000-eth-gdm-config-backport.patch @@ -1,6 +1,6 @@ --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c -@@ -2236,6 +2236,31 @@ static int mtk_start_dma(struct mtk_eth +@@ -2240,6 +2240,31 @@ static int mtk_start_dma(struct mtk_eth return 0; } @@ -32,7 +32,7 @@ static int mtk_open(struct net_device *dev) { struct mtk_mac *mac = netdev_priv(dev); -@@ -2256,6 +2281,8 @@ static int mtk_open(struct net_device *d +@@ -2260,6 +2285,8 @@ static int mtk_open(struct net_device *d if (err) return err; @@ -41,7 +41,7 @@ napi_enable(ð->tx_napi); napi_enable(ð->rx_napi); mtk_tx_irq_enable(eth, MTK_TX_DONE_INT); -@@ -2311,6 +2338,8 @@ static int mtk_stop(struct net_device *d +@@ -2315,6 +2342,8 @@ static int mtk_stop(struct net_device *d if (!refcount_dec_and_test(ð->dma_refcnt)) return 0; @@ -50,7 +50,7 @@ mtk_tx_irq_disable(eth, MTK_TX_DONE_INT); mtk_rx_irq_disable(eth, MTK_RX_DONE_INT); napi_disable(ð->tx_napi); -@@ -2494,8 +2523,6 @@ static int mtk_hw_init(struct mtk_eth *e +@@ -2498,8 +2527,6 @@ static int mtk_hw_init(struct mtk_eth *e /* disable delay and normal interrupt */ mtk_tx_irq_disable(eth, ~0); mtk_rx_irq_disable(eth, ~0); @@ -59,7 +59,7 @@ /* FE int grouping */ mtk_w32(eth, MTK_TX_DONE_INT, MTK_PDMA_INT_GRP1); -@@ -2504,19 +2531,6 @@ static int mtk_hw_init(struct mtk_eth *e +@@ -2508,19 +2535,6 @@ static int mtk_hw_init(struct mtk_eth *e mtk_w32(eth, MTK_RX_DONE_INT, MTK_QDMA_INT_GRP2); mtk_w32(eth, 0x21021000, MTK_FE_INT_GRP); diff --git a/target/linux/mediatek/patches-5.4/1011-net-ethernet-mtk_eth_soc-add-support-for-coherent-DM.patch b/target/linux/mediatek/patches-5.4/1011-net-ethernet-mtk_eth_soc-add-support-for-coherent-DM.patch index 1c2e08aca2..50b5e59697 100644 --- a/target/linux/mediatek/patches-5.4/1011-net-ethernet-mtk_eth_soc-add-support-for-coherent-DM.patch +++ b/target/linux/mediatek/patches-5.4/1011-net-ethernet-mtk_eth_soc-add-support-for-coherent-DM.patch @@ -37,7 +37,7 @@ Signed-off-by: Felix Fietkau #include #include #include -@@ -2472,6 +2473,12 @@ static int mtk_hw_init(struct mtk_eth *e +@@ -2476,6 +2477,12 @@ static int mtk_hw_init(struct mtk_eth *e if (ret) goto err_disable_pm; @@ -50,7 +50,7 @@ Signed-off-by: Felix Fietkau if (MTK_HAS_CAPS(eth->soc->caps, MTK_SOC_MT7628)) { ret = device_reset(eth->dev); if (ret) { -@@ -3074,6 +3081,16 @@ static int mtk_probe(struct platform_dev +@@ -3078,6 +3085,16 @@ static int mtk_probe(struct platform_dev } }