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ramips: support jumbo frame on mt7621 up to 2k

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Signed-off-by: Michael Lee <igvtee@gmail.com>
This commit is contained in:
Michael Lee 2017-04-27 09:04:31 +08:00 committed by John Crispin
parent 224e5f5efa
commit eee09bfe01
4 changed files with 32 additions and 17 deletions
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24
target/linux/ramips/patches-4.4/0501-net-next-mediatek-add-the-drivers-core-files.patch
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@ -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);
+}

8
target/linux/ramips/patches-4.4/0503-net-next-mediatek-add-switch-driver-for-mt7620.patch
View File

@ -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)

15
target/linux/ramips/patches-4.4/0504-net-next-mediatek-add-switch-driver-for-mt7621.patch
View File

@ -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);

2
target/linux/ramips/patches-4.4/0509-net-next-mediatek-add-support-for-mt7621.patch
View File

@ -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 |