ramips: support jumbo frame on mt7621 up to 2k

Signed-off-by: Michael Lee <igvtee@gmail.com>
(cherry picked from commit eee09bfe01e8cc2db1501f82dde7b9b6bb424faf)

diff --git a/target/linux/ramips/patches-4.4/0501-net-next-mediatek-add-the-drivers-core-files.patch b/target/linux/ramips/patches-4.4/0501-net-next-mediatek-add-the-drivers-core-files.patch
index cc4c2a152df10fd441ad504234833eaa28b043f1..72ed2c5df10208e67197dbae082178e61e570c57 100644 (file)
--- a/target/linux/ramips/patches-4.4/0501-net-next-mediatek-add-the-drivers-core-files.patch
+++ b/target/linux/ramips/patches-4.4/0501-net-next-mediatek-add-the-drivers-core-files.patch
@@ -600,7 +600,7 @@ Signed-off-by: Michael Lee <igvtee@gmail.com>
 +#endif
 --- /dev/null
 +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
-@@ -0,0 +1,1587 @@
+@@ -0,0 +1,1593 @@
 +/*   This program is free software; you can redistribute it and/or modify
 + *   it under the terms of the GNU General Public License as published by
 + *   the Free Software Foundation; version 2 of the License
@@ -1945,6 +1945,10 @@ Signed-off-by: Michael Lee <igvtee@gmail.com>
 +      if (!(priv->flags & FE_FLAG_JUMBO_FRAME))
 +              return eth_change_mtu(dev, new_mtu);
 +
++      if (IS_ENABLED(CONFIG_SOC_MT7621))
++              if (new_mtu > 2048)
++                      return -EINVAL;
++
 +      frag_size = fe_max_frag_size(new_mtu);
 +      if (new_mtu < 68 || frag_size > PAGE_SIZE)
 +              return -EINVAL;
@@ -1968,15 +1972,17 @@ Signed-off-by: Michael Lee <igvtee@gmail.com>
 +              return 0;
 +
 +      fe_stop(dev);
-+      fwd_cfg = fe_r32(FE_GDMA1_FWD_CFG);
-+      if (new_mtu <= ETH_DATA_LEN) {
-+              fwd_cfg &= ~FE_GDM1_JMB_EN;
-+      } else {
-+              fwd_cfg &= ~(FE_GDM1_JMB_LEN_MASK << FE_GDM1_JMB_LEN_SHIFT);
-+              fwd_cfg |= (DIV_ROUND_UP(frag_size, 1024) <<
-+                              FE_GDM1_JMB_LEN_SHIFT) | FE_GDM1_JMB_EN;
++      if (!IS_ENABLED(CONFIG_SOC_MT7621)) {
++              fwd_cfg = fe_r32(FE_GDMA1_FWD_CFG);
++              if (new_mtu <= ETH_DATA_LEN) {
++                      fwd_cfg &= ~FE_GDM1_JMB_EN;
++              } else {
++                      fwd_cfg &= ~(FE_GDM1_JMB_LEN_MASK << FE_GDM1_JMB_LEN_SHIFT);
++                      fwd_cfg |= (DIV_ROUND_UP(frag_size, 1024) <<
++                                      FE_GDM1_JMB_LEN_SHIFT) | FE_GDM1_JMB_EN;
++              }
++              fe_w32(fwd_cfg, FE_GDMA1_FWD_CFG);
 +      }
-+      fe_w32(fwd_cfg, FE_GDMA1_FWD_CFG);
 +
 +      return fe_open(dev);
 +}

diff --git a/target/linux/ramips/patches-4.4/0503-net-next-mediatek-add-switch-driver-for-mt7620.patch b/target/linux/ramips/patches-4.4/0503-net-next-mediatek-add-switch-driver-for-mt7620.patch
index 59972bd42e20380e727ca0d8bb09b86699b5f646..397d3bd33f20a89505c2b4fd2ae819e3cc66fdca 100644 (file)
--- a/target/linux/ramips/patches-4.4/0503-net-next-mediatek-add-switch-driver-for-mt7620.patch
+++ b/target/linux/ramips/patches-4.4/0503-net-next-mediatek-add-switch-driver-for-mt7620.patch
@@ -274,7 +274,7 @@ Signed-off-by: John Crispin <blogic@openwrt.org>
 +MODULE_VERSION(MTK_FE_DRV_VERSION);
 --- /dev/null
 +++ b/drivers/net/ethernet/mediatek/gsw_mt7620.h
-@@ -0,0 +1,117 @@
+@@ -0,0 +1,123 @@
 +/*   This program is free software; you can redistribute it and/or modify
 + *   it under the terms of the GNU General Public License as published by
 + *   the Free Software Foundation; version 2 of the License
@@ -322,6 +322,12 @@ Signed-off-by: John Crispin <blogic@openwrt.org>
 +#define GSW_REG_ISR           0x700c
 +#define GSW_REG_GPC1          0x7014
 +
++#define GSW_REG_MAC_P0_MCR    0x100
++#define GSW_REG_MAC_P1_MCR    0x200
++
++// Global MAC control register
++#define GSW_REG_GMACCR                0x30E0
++
 +#define SYSC_REG_CHIP_REV_ID  0x0c
 +#define SYSC_REG_CFG1         0x14
 +#define RST_CTRL_MCM          BIT(2)

diff --git a/target/linux/ramips/patches-4.4/0504-net-next-mediatek-add-switch-driver-for-mt7621.patch b/target/linux/ramips/patches-4.4/0504-net-next-mediatek-add-switch-driver-for-mt7621.patch
index 71192c9a25a5b81dbd5584f694e71f3e564f9727..28c513945141fbeecfbf94bf4bd617193703c8e4 100644 (file)
--- a/target/linux/ramips/patches-4.4/0504-net-next-mediatek-add-switch-driver-for-mt7621.patch
+++ b/target/linux/ramips/patches-4.4/0504-net-next-mediatek-add-switch-driver-for-mt7621.patch
@@ -14,7 +14,7 @@ Signed-off-by: John Crispin <blogic@openwrt.org>
 
 --- /dev/null
 +++ b/drivers/net/ethernet/mediatek/gsw_mt7621.c
-@@ -0,0 +1,284 @@
+@@ -0,0 +1,287 @@
 +/*   This program is free software; you can redistribute it and/or modify
 + *   it under the terms of the GNU General Public License as published by
 + *   the Free Software Foundation; version 2 of the License
@@ -115,17 +115,20 @@ Signed-off-by: John Crispin <blogic@openwrt.org>
 +      usleep_range(10, 20);
 +
 +      if ((rt_sysc_r32(SYSC_REG_CHIP_REV_ID) & 0xFFFF) == 0x0101) {
-+              /* (GE1, Force 1000M/FD, FC ON, MAX_RX_LENGTH 1536) */
-+              mtk_switch_w32(gsw, 0x2105e30b, 0x100);
++              /* (GE1, Force 1000M/FD, FC ON, MAX_RX_LENGTH 2k) */
++              mtk_switch_w32(gsw, 0x2305e30b, GSW_REG_MAC_P0_MCR);
 +              mt7530_mdio_w32(gsw, 0x3600, 0x5e30b);
 +      } else {
-+              /* (GE1, Force 1000M/FD, FC ON, MAX_RX_LENGTH 1536) */
-+              mtk_switch_w32(gsw, 0x2105e33b, 0x100);
++              /* (GE1, Force 1000M/FD, FC ON, MAX_RX_LENGTH 2k) */
++              mtk_switch_w32(gsw, 0x2305e33b, GSW_REG_MAC_P0_MCR);
 +              mt7530_mdio_w32(gsw, 0x3600, 0x5e33b);
 +      }
 +
 +      /* (GE2, Link down) */
-+      mtk_switch_w32(gsw, 0x8000, 0x200);
++      mtk_switch_w32(gsw, 0x8000, GSW_REG_MAC_P1_MCR);
++
++      /* Set switch max RX frame length to 2k */
++      mt7530_mdio_w32(gsw, GSW_REG_GMACCR, 0x3F0B);
 +
 +      /* Enable Port 6, P5 as GMAC5, P5 disable */
 +      val = mt7530_mdio_r32(gsw, 0x7804);

diff --git a/target/linux/ramips/patches-4.4/0509-net-next-mediatek-add-support-for-mt7621.patch b/target/linux/ramips/patches-4.4/0509-net-next-mediatek-add-support-for-mt7621.patch
index 6920545f0cc79d5d27344ae919b9f568064441dd..6ea97c1ae4a0fac1c218fb260cc5ac14e0eeeb48 100644 (file)
--- a/target/linux/ramips/patches-4.4/0509-net-next-mediatek-add-support-for-mt7621.patch
+++ b/target/linux/ramips/patches-4.4/0509-net-next-mediatek-add-support-for-mt7621.patch
@@ -163,7 +163,7 @@ Signed-off-by: Michael Lee <igvtee@gmail.com>
 +
 +      priv->flags = FE_FLAG_PADDING_64B | FE_FLAG_RX_2B_OFFSET |
 +              FE_FLAG_RX_SG_DMA | FE_FLAG_NAPI_WEIGHT |
-+              FE_FLAG_HAS_SWITCH;
++              FE_FLAG_HAS_SWITCH | FE_FLAG_JUMBO_FRAME;
 +
 +      netdev->hw_features = NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
 +              NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_SG | NETIF_F_TSO |