[openwrt/openwrt] ramips/mediatek: improve GRO performance, fix PPE packet parsing

LEDE Commits lede-commits at lists.infradead.org
Sun Sep 13 05:48:36 EDT 2020 

nbd pushed a commit to openwrt/openwrt.git, branch master:
https://git.openwrt.org/f0cc5f6c0a72b7da9ed5915cf561e2f81d514c68

commit f0cc5f6c0a72b7da9ed5915cf561e2f81d514c68
Author: Felix Fietkau <nbd at nbd.name>
AuthorDate: Sun Sep 13 09:34:37 2020 +0200

    ramips/mediatek: improve GRO performance, fix PPE packet parsing
    
    Backport upstream changes to initialize GDM settings and reset PPE
    Allow GMAC to recognize the special tag to fix PPE packet parsing
    Improve GRO performance by passing PPE L4 hash as skb hash
    
    Signed-off-by: Felix Fietkau <nbd at nbd.name>
---
 ...-mediatek-Integrate-GDM-PSE-setup-operat.patch} | 46 +++++--------
 ...t-mediatek-Refine-the-timing-of-GDM-PSE-s.patch | 45 +++++++++++++
 ...et-mediatek-Enable-GDM-GDMA_DROP_ALL-mode.patch | 33 ++++++++++
 ...-ethernet-mtk_eth_soc-fix-rx-vlan-offload.patch |  2 +-
 ...t-mtk_eth_soc-use-larger-burst-size-for-q.patch |  2 +-
 ...t-mtk_eth_soc-implement-dynamic-interrupt.patch | 20 +++---
 ...t-mtk_eth_soc-cache-hardware-pointer-of-l.patch |  4 +-
 ...et-mtk_eth_soc-fix-parsing-packets-in-GDM.patch | 75 ++++++++++++++++++++++
 ...t-mtk_eth_soc-set-PPE-flow-hash-as-skb-ha.patch | 23 +++++++
 target/linux/mediatek/patches-5.4/0999-hnat.patch  | 26 ++++----
 ...t-mtk_eth_soc-add-support-for-coherent-DM.patch |  6 +-
 11 files changed, 223 insertions(+), 59 deletions(-)

diff --git a/target/linux/mediatek/patches-5.4/1000-eth-gdm-config-backport.patch b/target/linux/generic/backport-5.4/760-net-ethernet-mediatek-Integrate-GDM-PSE-setup-operat.patch
similarity index 65%
rename from target/linux/mediatek/patches-5.4/1000-eth-gdm-config-backport.patch
rename to target/linux/generic/backport-5.4/760-net-ethernet-mediatek-Integrate-GDM-PSE-setup-operat.patch
index a2acadfd90..4df1fd2677 100644
--- a/target/linux/mediatek/patches-5.4/1000-eth-gdm-config-backport.patch
+++ b/target/linux/generic/backport-5.4/760-net-ethernet-mediatek-Integrate-GDM-PSE-setup-operat.patch
@@ -1,6 +1,16 @@
+From: MarkLee <Mark-MC.Lee at mediatek.com>
+Date: Wed, 13 Nov 2019 10:38:42 +0800
+Subject: [PATCH] net: ethernet: mediatek: Integrate GDM/PSE setup operations
+
+Integrate GDM/PSE setup operations into single function "mtk_gdm_config"
+
+Signed-off-by: MarkLee <Mark-MC.Lee at mediatek.com>
+Signed-off-by: David S. Miller <davem at davemloft.net>
+---
+
 --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
 +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
-@@ -2240,6 +2240,31 @@ static int mtk_start_dma(struct mtk_eth
+@@ -2211,6 +2211,28 @@ static int mtk_start_dma(struct mtk_eth
  	return 0;
  }
  
@@ -8,9 +18,6 @@
 +{
 +	int i;
 +
-+	if (MTK_HAS_CAPS(eth->soc->caps, MTK_SOC_MT7628))
-+		return;
-+
 +	for (i = 0; i < MTK_MAC_COUNT; i++) {
 +		u32 val = mtk_r32(eth, MTK_GDMA_FWD_CFG(i));
 +
@@ -32,26 +39,8 @@
  static int mtk_open(struct net_device *dev)
  {
  	struct mtk_mac *mac = netdev_priv(dev);
-@@ -2260,6 +2285,8 @@ static int mtk_open(struct net_device *d
- 		if (err)
- 			return err;
- 
-+		mtk_gdm_config(eth, MTK_GDMA_TO_PDMA);
-+
- 		napi_enable(&eth->tx_napi);
- 		napi_enable(&eth->rx_napi);
- 		mtk_tx_irq_enable(eth, MTK_TX_DONE_INT);
-@@ -2315,6 +2342,8 @@ static int mtk_stop(struct net_device *d
- 	if (!refcount_dec_and_test(&eth->dma_refcnt))
- 		return 0;
- 
-+	mtk_gdm_config(eth, MTK_GDMA_DROP_ALL);
-+
- 	mtk_tx_irq_disable(eth, MTK_TX_DONE_INT);
- 	mtk_rx_irq_disable(eth, MTK_RX_DONE_INT);
- 	napi_disable(&eth->tx_napi);
-@@ -2498,8 +2527,6 @@ static int mtk_hw_init(struct mtk_eth *e
- 	/* disable delay and normal interrupt */
+@@ -2406,8 +2428,6 @@ static int mtk_hw_init(struct mtk_eth *e
+ 	mtk_w32(eth, 0, MTK_QDMA_DELAY_INT);
  	mtk_tx_irq_disable(eth, ~0);
  	mtk_rx_irq_disable(eth, ~0);
 -	mtk_w32(eth, RST_GL_PSE, MTK_RST_GL);
@@ -59,7 +48,7 @@
  
  	/* FE int grouping */
  	mtk_w32(eth, MTK_TX_DONE_INT, MTK_PDMA_INT_GRP1);
-@@ -2508,19 +2535,6 @@ static int mtk_hw_init(struct mtk_eth *e
+@@ -2416,18 +2436,7 @@ 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);
  
@@ -75,18 +64,17 @@
 -		/* setup the mac dma */
 -		mtk_w32(eth, val, MTK_GDMA_FWD_CFG(i));
 -	}
--
++	mtk_gdm_config(eth, MTK_GDMA_TO_PDMA);
+ 
  	return 0;
  
- err_disable_pm:
 --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.h
 +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.h
-@@ -85,6 +85,8 @@
+@@ -84,6 +84,7 @@
  #define MTK_GDMA_ICS_EN		BIT(22)
  #define MTK_GDMA_TCS_EN		BIT(21)
  #define MTK_GDMA_UCS_EN		BIT(20)
 +#define MTK_GDMA_TO_PDMA	0x0
-+#define MTK_GDMA_DROP_ALL	0x7777
  
  /* Unicast Filter MAC Address Register - Low */
  #define MTK_GDMA_MAC_ADRL(x)	(0x508 + (x * 0x1000))
diff --git a/target/linux/generic/backport-5.4/761-net-ethernet-mediatek-Refine-the-timing-of-GDM-PSE-s.patch b/target/linux/generic/backport-5.4/761-net-ethernet-mediatek-Refine-the-timing-of-GDM-PSE-s.patch
new file mode 100644
index 0000000000..cdcd6a1a33
--- /dev/null
+++ b/target/linux/generic/backport-5.4/761-net-ethernet-mediatek-Refine-the-timing-of-GDM-PSE-s.patch
@@ -0,0 +1,45 @@
+From: MarkLee <Mark-MC.Lee at mediatek.com>
+Date: Wed, 13 Nov 2019 10:38:43 +0800
+Subject: [PATCH] net: ethernet: mediatek: Refine the timing of GDM/PSE setup
+
+Refine the timing of GDM/PSE setup, move it from mtk_hw_init
+to mtk_open. This is recommended by the mt762x HW design to
+do GDM/PSE setup only after PDMA has been started.
+
+We exclude mt7628 in mtk_gdm_config function since it is a old IP
+and there is no GDM/PSE block on it.
+
+Signed-off-by: MarkLee <Mark-MC.Lee at mediatek.com>
+Signed-off-by: David S. Miller <davem at davemloft.net>
+---
+
+--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
++++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+@@ -2215,6 +2215,9 @@ static void mtk_gdm_config(struct mtk_et
+ {
+ 	int i;
+ 
++	if (MTK_HAS_CAPS(eth->soc->caps, MTK_SOC_MT7628))
++		return;
++
+ 	for (i = 0; i < MTK_MAC_COUNT; i++) {
+ 		u32 val = mtk_r32(eth, MTK_GDMA_FWD_CFG(i));
+ 
+@@ -2253,6 +2256,8 @@ static int mtk_open(struct net_device *d
+ 		if (err)
+ 			return err;
+ 
++		mtk_gdm_config(eth, MTK_GDMA_TO_PDMA);
++
+ 		napi_enable(&eth->tx_napi);
+ 		napi_enable(&eth->rx_napi);
+ 		mtk_tx_irq_enable(eth, MTK_TX_DONE_INT);
+@@ -2436,8 +2441,6 @@ 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);
+ 
+-	mtk_gdm_config(eth, MTK_GDMA_TO_PDMA);
+-
+ 	return 0;
+ 
+ err_disable_pm:
diff --git a/target/linux/generic/backport-5.4/762-net-ethernet-mediatek-Enable-GDM-GDMA_DROP_ALL-mode.patch b/target/linux/generic/backport-5.4/762-net-ethernet-mediatek-Enable-GDM-GDMA_DROP_ALL-mode.patch
new file mode 100644
index 0000000000..b8c40ef665
--- /dev/null
+++ b/target/linux/generic/backport-5.4/762-net-ethernet-mediatek-Enable-GDM-GDMA_DROP_ALL-mode.patch
@@ -0,0 +1,33 @@
+From: MarkLee <Mark-MC.Lee at mediatek.com>
+Date: Wed, 13 Nov 2019 10:38:44 +0800
+Subject: [PATCH] net: ethernet: mediatek: Enable GDM GDMA_DROP_ALL mode
+
+Enable GDM GDMA_DROP_ALL mode to drop all packet during the
+stop operation. This is recommended by the mt762x HW design
+to drop all packet from GMAC before stopping PDMA.
+
+Signed-off-by: MarkLee <Mark-MC.Lee at mediatek.com>
+Signed-off-by: David S. Miller <davem at davemloft.net>
+---
+
+--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
++++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+@@ -2310,6 +2310,8 @@ static int mtk_stop(struct net_device *d
+ 	if (!refcount_dec_and_test(&eth->dma_refcnt))
+ 		return 0;
+ 
++	mtk_gdm_config(eth, MTK_GDMA_DROP_ALL);
++
+ 	mtk_tx_irq_disable(eth, MTK_TX_DONE_INT);
+ 	mtk_rx_irq_disable(eth, MTK_RX_DONE_INT);
+ 	napi_disable(&eth->tx_napi);
+--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.h
++++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.h
+@@ -85,6 +85,7 @@
+ #define MTK_GDMA_TCS_EN		BIT(21)
+ #define MTK_GDMA_UCS_EN		BIT(20)
+ #define MTK_GDMA_TO_PDMA	0x0
++#define MTK_GDMA_DROP_ALL       0x7777
+ 
+ /* Unicast Filter MAC Address Register - Low */
+ #define MTK_GDMA_MAC_ADRL(x)	(0x508 + (x * 0x1000))
diff --git a/target/linux/generic/pending-5.4/770-02-net-ethernet-mtk_eth_soc-fix-rx-vlan-offload.patch b/target/linux/generic/pending-5.4/770-02-net-ethernet-mtk_eth_soc-fix-rx-vlan-offload.patch
index 899bc41c93..e17877028f 100644
--- a/target/linux/generic/pending-5.4/770-02-net-ethernet-mtk_eth_soc-fix-rx-vlan-offload.patch
+++ b/target/linux/generic/pending-5.4/770-02-net-ethernet-mtk_eth_soc-fix-rx-vlan-offload.patch
@@ -21,7 +21,7 @@ Signed-off-by: Felix Fietkau <nbd at nbd.name>
  		skb_record_rx_queue(skb, 0);
 --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.h
 +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.h
-@@ -293,6 +293,7 @@
+@@ -295,6 +295,7 @@
  #define RX_DMA_LSO		BIT(30)
  #define RX_DMA_PLEN0(_x)	(((_x) & 0x3fff) << 16)
  #define RX_DMA_GET_PLEN0(_x)	(((_x) >> 16) & 0x3fff)
diff --git a/target/linux/generic/pending-5.4/770-04-net-ethernet-mtk_eth_soc-use-larger-burst-size-for-q.patch b/target/linux/generic/pending-5.4/770-04-net-ethernet-mtk_eth_soc-use-larger-burst-size-for-q.patch
index b066d35d2e..e135f27f95 100644
--- a/target/linux/generic/pending-5.4/770-04-net-ethernet-mtk_eth_soc-use-larger-burst-size-for-q.patch
+++ b/target/linux/generic/pending-5.4/770-04-net-ethernet-mtk_eth_soc-use-larger-burst-size-for-q.patch
@@ -21,7 +21,7 @@ Signed-off-by: Felix Fietkau <nbd at nbd.name>
  			MTK_QDMA_GLO_CFG);
 --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.h
 +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.h
-@@ -195,7 +195,7 @@
+@@ -197,7 +197,7 @@
  #define MTK_RX_BT_32DWORDS	(3 << 11)
  #define MTK_NDP_CO_PRO		BIT(10)
  #define MTK_TX_WB_DDONE		BIT(6)
diff --git a/target/linux/generic/pending-5.4/770-06-net-ethernet-mtk_eth_soc-implement-dynamic-interrupt.patch b/target/linux/generic/pending-5.4/770-06-net-ethernet-mtk_eth_soc-implement-dynamic-interrupt.patch
index 4372029423..8720ab503c 100644
--- a/target/linux/generic/pending-5.4/770-06-net-ethernet-mtk_eth_soc-implement-dynamic-interrupt.patch
+++ b/target/linux/generic/pending-5.4/770-06-net-ethernet-mtk_eth_soc-implement-dynamic-interrupt.patch
@@ -95,7 +95,7 @@ Signed-off-by: Felix Fietkau <nbd at nbd.name>
  	if (likely(napi_schedule_prep(&eth->tx_napi))) {
  		__napi_schedule(&eth->tx_napi);
  		mtk_tx_irq_disable(eth, MTK_TX_DONE_INT);
-@@ -2282,6 +2299,9 @@ static int mtk_stop(struct net_device *d
+@@ -2311,6 +2328,9 @@ static int mtk_stop(struct net_device *d
  	napi_disable(&eth->tx_napi);
  	napi_disable(&eth->rx_napi);
  
@@ -105,7 +105,7 @@ Signed-off-by: Felix Fietkau <nbd at nbd.name>
  	if (MTK_HAS_CAPS(eth->soc->caps, MTK_QDMA))
  		mtk_stop_dma(eth, MTK_QDMA_GLO_CFG);
  	mtk_stop_dma(eth, MTK_PDMA_GLO_CFG);
-@@ -2331,6 +2351,64 @@ err_disable_clks:
+@@ -2360,6 +2380,64 @@ err_disable_clks:
  	return ret;
  }
  
@@ -170,7 +170,7 @@ Signed-off-by: Felix Fietkau <nbd at nbd.name>
  static int mtk_hw_init(struct mtk_eth *eth)
  {
  	int i, val, ret;
-@@ -2352,9 +2430,6 @@ static int mtk_hw_init(struct mtk_eth *e
+@@ -2381,9 +2459,6 @@ static int mtk_hw_init(struct mtk_eth *e
  			goto err_disable_pm;
  		}
  
@@ -180,7 +180,7 @@ Signed-off-by: Felix Fietkau <nbd at nbd.name>
  		/* disable delay and normal interrupt */
  		mtk_tx_irq_disable(eth, ~0);
  		mtk_rx_irq_disable(eth, ~0);
-@@ -2393,11 +2468,10 @@ static int mtk_hw_init(struct mtk_eth *e
+@@ -2422,11 +2497,10 @@ static int mtk_hw_init(struct mtk_eth *e
  	/* Enable RX VLan Offloading */
  	mtk_w32(eth, 1, MTK_CDMP_EG_CTRL);
  
@@ -193,8 +193,8 @@ Signed-off-by: Felix Fietkau <nbd at nbd.name>
 -	mtk_w32(eth, 0, MTK_QDMA_DELAY_INT);
  	mtk_tx_irq_disable(eth, ~0);
  	mtk_rx_irq_disable(eth, ~0);
- 	mtk_w32(eth, RST_GL_PSE, MTK_RST_GL);
-@@ -2916,6 +2990,13 @@ static int mtk_probe(struct platform_dev
+ 
+@@ -2930,6 +3004,13 @@ static int mtk_probe(struct platform_dev
  	spin_lock_init(&eth->page_lock);
  	spin_lock_init(&eth->tx_irq_lock);
  	spin_lock_init(&eth->rx_irq_lock);
@@ -218,7 +218,7 @@ Signed-off-by: Felix Fietkau <nbd at nbd.name>
  
  #define MTK_QDMA_PAGE_SIZE	2048
  #define	MTK_MAX_RX_LENGTH	1536
-@@ -129,13 +130,18 @@
+@@ -131,13 +132,18 @@
  
  /* PDMA Delay Interrupt Register */
  #define MTK_PDMA_DELAY_INT		0xa0c
@@ -242,7 +242,7 @@ Signed-off-by: Felix Fietkau <nbd at nbd.name>
  
  /* PDMA Interrupt Status Register */
  #define MTK_PDMA_INT_STATUS	0xa20
-@@ -217,6 +223,7 @@
+@@ -219,6 +225,7 @@
  /* QDMA Interrupt Status Register */
  #define MTK_QDMA_INT_STATUS	0x1A18
  #define MTK_RX_DONE_DLY		BIT(30)
@@ -250,7 +250,7 @@ Signed-off-by: Felix Fietkau <nbd at nbd.name>
  #define MTK_RX_DONE_INT3	BIT(19)
  #define MTK_RX_DONE_INT2	BIT(18)
  #define MTK_RX_DONE_INT1	BIT(17)
-@@ -226,8 +233,7 @@
+@@ -228,8 +235,7 @@
  #define MTK_TX_DONE_INT1	BIT(1)
  #define MTK_TX_DONE_INT0	BIT(0)
  #define MTK_RX_DONE_INT		MTK_RX_DONE_DLY
@@ -260,7 +260,7 @@ Signed-off-by: Felix Fietkau <nbd at nbd.name>
  
  /* QDMA Interrupt grouping registers */
  #define MTK_QDMA_INT_GRP1	0x1a20
-@@ -890,6 +896,18 @@ struct mtk_eth {
+@@ -892,6 +898,18 @@ struct mtk_eth {
  
  	const struct mtk_soc_data	*soc;
  
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 29dfd932e7..a7231d826c 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
@@ -49,7 +49,7 @@ Signed-off-by: Felix Fietkau <nbd at nbd.name>
  	} else {
 --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.h
 +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.h
-@@ -622,6 +622,7 @@ struct mtk_tx_buf {
+@@ -624,6 +624,7 @@ struct mtk_tx_buf {
   * @phys:		The physical addr of tx_buf
   * @next_free:		Pointer to the next free descriptor
   * @last_free:		Pointer to the last free descriptor
@@ -57,7 +57,7 @@ Signed-off-by: Felix Fietkau <nbd at nbd.name>
   * @thresh:		The threshold of minimum amount of free descriptors
   * @free_count:		QDMA uses a linked list. Track how many free descriptors
   *			are present
-@@ -632,6 +633,7 @@ struct mtk_tx_ring {
+@@ -634,6 +635,7 @@ struct mtk_tx_ring {
  	dma_addr_t phys;
  	struct mtk_tx_dma *next_free;
  	struct mtk_tx_dma *last_free;
diff --git a/target/linux/generic/pending-5.4/770-13-net-ethernet-mtk_eth_soc-fix-parsing-packets-in-GDM.patch b/target/linux/generic/pending-5.4/770-13-net-ethernet-mtk_eth_soc-fix-parsing-packets-in-GDM.patch
new file mode 100644
index 0000000000..36a52bbc06
--- /dev/null
+++ b/target/linux/generic/pending-5.4/770-13-net-ethernet-mtk_eth_soc-fix-parsing-packets-in-GDM.patch
@@ -0,0 +1,75 @@
+From: Felix Fietkau <nbd at nbd.name>
+Date: Sun, 13 Sep 2020 08:17:02 +0200
+Subject: [PATCH] net: ethernet: mtk_eth_soc: fix parsing packets in GDM
+
+When using DSA, set the special tag in GDM ingress control to allow the MAC
+to parse packets properly earlier. This affects rx DMA source port reporting.
+
+Signed-off-by: Felix Fietkau <nbd at nbd.name>
+---
+
+--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
++++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+@@ -19,6 +19,7 @@
+ #include <linux/interrupt.h>
+ #include <linux/pinctrl/devinfo.h>
+ #include <linux/phylink.h>
++#include <net/dsa.h>
+ 
+ #include "mtk_eth_soc.h"
+ 
+@@ -1240,12 +1241,14 @@ static int mtk_poll_rx(struct napi_struc
+ 	u8 *data, *new_data;
+ 	struct mtk_rx_dma *rxd, trxd;
+ 	int done = 0, bytes = 0;
++	bool uses_dsa = eth->netdev[0] && netdev_uses_dsa(eth->netdev[0]);
+ 
+ 	while (done < budget) {
+ 		struct net_device *netdev;
+ 		unsigned int pktlen;
+ 		dma_addr_t dma_addr;
+ 		int mac;
++		u16 hash;
+ 
+ 		ring = mtk_get_rx_ring(eth);
+ 		if (unlikely(!ring))
+@@ -1259,13 +1262,13 @@ static int mtk_poll_rx(struct napi_struc
+ 			break;
+ 
+ 		/* find out which mac the packet come from. values start at 1 */
+-		if (MTK_HAS_CAPS(eth->soc->caps, MTK_SOC_MT7628)) {
++		if (MTK_HAS_CAPS(eth->soc->caps, MTK_SOC_MT7628))
+ 			mac = 0;
+-		} else {
+-			mac = (trxd.rxd4 >> RX_DMA_FPORT_SHIFT) &
+-				RX_DMA_FPORT_MASK;
+-			mac--;
+-		}
++		else if (uses_dsa)
++			mac = !(trxd.rxd4 >> 22);
++		else
++			mac = ((trxd.rxd4 >> RX_DMA_FPORT_SHIFT) &
++			       RX_DMA_FPORT_MASK) - 1;
+ 
+ 		if (unlikely(mac < 0 || mac >= MTK_MAC_COUNT ||
+ 			     !eth->netdev[mac]))
+@@ -2247,6 +2250,9 @@ static void mtk_gdm_config(struct mtk_et
+ 
+ 		val |= config;
+ 
++		if (!i && eth->netdev[0] && netdev_uses_dsa(eth->netdev[0]))
++			val |= MTK_GDMA_SPECIAL_TAG;
++
+ 		mtk_w32(eth, val, MTK_GDMA_FWD_CFG(i));
+ 	}
+ 	/* Reset and enable PSE */
+--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.h
++++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.h
+@@ -82,6 +82,7 @@
+ 
+ /* GDM Exgress Control Register */
+ #define MTK_GDMA_FWD_CFG(x)	(0x500 + (x * 0x1000))
++#define MTK_GDMA_SPECIAL_TAG	BIT(24)
+ #define MTK_GDMA_ICS_EN		BIT(22)
+ #define MTK_GDMA_TCS_EN		BIT(21)
+ #define MTK_GDMA_UCS_EN		BIT(20)
diff --git a/target/linux/generic/pending-5.4/770-14-net-ethernet-mtk_eth_soc-set-PPE-flow-hash-as-skb-ha.patch b/target/linux/generic/pending-5.4/770-14-net-ethernet-mtk_eth_soc-set-PPE-flow-hash-as-skb-ha.patch
new file mode 100644
index 0000000000..384af9d21d
--- /dev/null
+++ b/target/linux/generic/pending-5.4/770-14-net-ethernet-mtk_eth_soc-set-PPE-flow-hash-as-skb-ha.patch
@@ -0,0 +1,23 @@
+From: Felix Fietkau <nbd at nbd.name>
+Date: Sun, 13 Sep 2020 08:27:24 +0200
+Subject: [PATCH] net: ethernet: mtk_eth_soc: set PPE flow hash as skb hash
+ if present
+
+This improves GRO performance
+
+Signed-off-by: Felix Fietkau <nbd at nbd.name>
+---
+
+--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
++++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+@@ -1318,6 +1318,10 @@ static int mtk_poll_rx(struct napi_struc
+ 		skb->protocol = eth_type_trans(skb, netdev);
+ 		bytes += pktlen;
+ 
++		hash = trxd.rxd4 & GENMASK(13, 0);
++		if (hash != GENMASK(13, 0))
++			skb_set_hash(skb, hash, PKT_HASH_TYPE_L4);
++
+ 		if (netdev->features & NETIF_F_HW_VLAN_CTAG_RX &&
+ 		    (trxd.rxd2 & RX_DMA_VTAG))
+ 			__vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q),
diff --git a/target/linux/mediatek/patches-5.4/0999-hnat.patch b/target/linux/mediatek/patches-5.4/0999-hnat.patch
index 50850a906e..685c741043 100644
--- a/target/linux/mediatek/patches-5.4/0999-hnat.patch
+++ b/target/linux/mediatek/patches-5.4/0999-hnat.patch
@@ -144,10 +144,10 @@
  #include <linux/phylink.h>
 +#include <linux/netfilter.h>
 +#include <net/netfilter/nf_flow_table.h>
+ #include <net/dsa.h>
  
  #include "mtk_eth_soc.h"
- 
-@@ -1320,8 +1322,16 @@ static int mtk_poll_rx(struct napi_struc
+@@ -1327,8 +1329,16 @@ 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;
-@@ -2255,6 +2265,9 @@ static int mtk_open(struct net_device *d
+@@ -2292,6 +2302,9 @@ 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(&eth->dma_refcnt, 1);
@@ -176,7 +176,7 @@
  	}
  	else
  		refcount_inc(&eth->dma_refcnt);
-@@ -2316,6 +2329,9 @@ static int mtk_stop(struct net_device *d
+@@ -2355,6 +2368,9 @@ static int mtk_stop(struct net_device *d
  
  	mtk_dma_free(eth);
  
@@ -186,7 +186,7 @@
  	return 0;
  }
  
-@@ -2829,6 +2845,27 @@ static int mtk_set_rxnfc(struct net_devi
+@@ -2853,6 +2869,27 @@ 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,
-@@ -2860,6 +2897,9 @@ static const struct net_device_ops mtk_n
+@@ -2884,6 +2921,9 @@ 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)
-@@ -3202,6 +3242,7 @@ static const struct mtk_soc_data mt7622_
+@@ -3226,6 +3266,7 @@ static const struct mtk_soc_data mt7622_
  	.hw_features = MTK_HW_FEATURES,
  	.required_clks = MT7622_CLKS_BITMAP,
  	.required_pctl = false,
@@ -234,7 +234,7 @@
  static const struct mtk_soc_data mt7623_data = {
 --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.h
 +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.h
-@@ -787,6 +787,13 @@ enum mkt_eth_capabilities {
+@@ -790,6 +790,13 @@ enum mkt_eth_capabilities {
  		      MTK_MUX_U3_GMAC2_TO_QPHY | \
  		      MTK_MUX_GMAC12_TO_GEPHY_SGMII | MTK_QDMA)
  
@@ -248,7 +248,7 @@
  /* struct mtk_eth_data -	This is the structure holding all differences
   *				among various plaforms
   * @ana_rgc3:                   The offset for register ANA_RGC3 related to
-@@ -804,6 +811,7 @@ struct mtk_soc_data {
+@@ -807,6 +814,7 @@ struct mtk_soc_data {
  	u32		required_clks;
  	bool		required_pctl;
  	netdev_features_t hw_features;
@@ -256,7 +256,7 @@
  };
  
  /* currently no SoC has more than 2 macs */
-@@ -829,6 +837,23 @@ struct mtk_sgmii {
+@@ -832,6 +840,23 @@ struct mtk_sgmii {
  	u32             ana_rgc3;
  };
  
@@ -280,7 +280,7 @@
  /* struct mtk_eth -	This is the main datasructure for holding the state
   *			of the driver
   * @dev:		The device pointer
-@@ -914,6 +939,16 @@ struct mtk_eth {
+@@ -917,6 +942,16 @@ struct mtk_eth {
  	u32				tx_int_status_reg;
  	u32				rx_dma_l4_valid;
  	int				ip_align;
@@ -297,7 +297,7 @@
  };
  
  /* struct mtk_mac -	the structure that holds the info about the MACs of the
-@@ -946,6 +981,7 @@ void mtk_stats_update_mac(struct mtk_mac
+@@ -949,6 +984,7 @@ void mtk_stats_update_mac(struct mtk_mac
  
  void mtk_w32(struct mtk_eth *eth, u32 val, unsigned reg);
  u32 mtk_r32(struct mtk_eth *eth, unsigned reg);
@@ -305,7 +305,7 @@
  
  int mtk_sgmii_init(struct mtk_sgmii *ss, struct device_node *np,
  		   u32 ana_rgc3);
-@@ -958,4 +994,13 @@ int mtk_gmac_sgmii_path_setup(struct mtk
+@@ -961,4 +997,13 @@ int mtk_gmac_sgmii_path_setup(struct mtk
  int mtk_gmac_gephy_path_setup(struct mtk_eth *eth, int mac_id);
  int mtk_gmac_rgmii_path_setup(struct mtk_eth *eth, int mac_id);
  
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 cc104927d8..ed9aecdf74 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 <nbd at nbd.name>
  #include <linux/mfd/syscon.h>
  #include <linux/regmap.h>
  #include <linux/clk.h>
-@@ -2476,6 +2477,12 @@ static int mtk_hw_init(struct mtk_eth *e
+@@ -2486,6 +2487,12 @@ static int mtk_hw_init(struct mtk_eth *e
  	if (ret)
  		goto err_disable_pm;
  
@@ -50,7 +50,7 @@ Signed-off-by: Felix Fietkau <nbd at nbd.name>
  	if (MTK_HAS_CAPS(eth->soc->caps, MTK_SOC_MT7628)) {
  		ret = device_reset(eth->dev);
  		if (ret) {
-@@ -3078,6 +3085,16 @@ static int mtk_probe(struct platform_dev
+@@ -3088,6 +3095,16 @@ static int mtk_probe(struct platform_dev
  		}
  	}
  
@@ -69,7 +69,7 @@ Signed-off-by: Felix Fietkau <nbd at nbd.name>
  					  GFP_KERNEL);
 --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.h
 +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.h
-@@ -425,6 +425,11 @@
+@@ -426,6 +426,11 @@
  #define RSTCTRL_FE		BIT(6)
  #define RSTCTRL_PPE		BIT(31)

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