From: Baptiste Jonglez <g...@bitsofnetworks.org>

This change has been causing several issues on ipq40xx devices, including:

- VLAN tagging no longer works correctly: 
https://bugs.openwrt.org/index.php?do=details&task_id=3239
- poor performance with tagged VLANs: 
https://bugs.openwrt.org/index.php?do=details&task_id=3457

See also 
https://forum.openwrt.org/t/vlan-tagging-on-ipq40xx-gl-b1300-no-longer-works/69569

There are have been discussions on ways to fix the issue in the links
above (including switching to DSA), but nothing that can realistically
be introduced in the 19.07 branch.

This reverts commit 8c191712558c ("ipq40xx: fix ethernet vlan double
tagging")

Note that it's not a clean revert because this patch was touched in
148d59c67edd ("kernel: update kernel 4.14 to version 4.14.193") even
though the semantic of the patch was left unchanged.

Fixes: FS#3239
Fixes: FS#3457
Fixes: 8c191712558c ("ipq40xx: fix ethernet vlan double tagging")
Signed-off-by: Baptiste Jonglez <g...@bitsofnetworks.org>
---
 .../716-essedma-vlan-double-tag.patch         | 128 ------------------
 1 file changed, 128 deletions(-)
 delete mode 100644 
target/linux/ipq40xx/patches-4.14/716-essedma-vlan-double-tag.patch

diff --git 
a/target/linux/ipq40xx/patches-4.14/716-essedma-vlan-double-tag.patch 
b/target/linux/ipq40xx/patches-4.14/716-essedma-vlan-double-tag.patch
deleted file mode 100644
index e268351273..0000000000
--- a/target/linux/ipq40xx/patches-4.14/716-essedma-vlan-double-tag.patch
+++ /dev/null
@@ -1,128 +0,0 @@
-From: Sven Eckelmann <s...@narfation.org>
-Date: Wed, 8 Feb 2017 16:26:00 +0100
-Subject: [PATCH] ipq40xx: Fix ar40xx port separation
-
-It is currently not possible to submit (or receive) VLAN tagged frames over
-the ar40xx PHY switch and the edma ethernet device.
-
-This can be worked around by disabling enable_vlan. The separation of the
-eth0 and eth1 ports is then done by the vlan_tag information from the
-device tree. But the ar40xx PHY switch then also has to parse the word3
-port bitmap (word3) from the TDP when data was received from the CPU port
-(0).
-
-IssueID: #2857
-
-Forwarded: no
- The ar40xx.c change was forwarded to Xiaofei Shen <xiaof...@codeaurora.org>
- (QCA). But John Crispin will rewrite the driver anyway and we have to check
- later if this change is required in his driver too.
----
- drivers/net/phy/ar40xx.c | 6 +++++-
- 1 file changed, 5 insertions(+), 1 deletion(-)
-
---- a/drivers/net/phy/ar40xx.c
-+++ b/drivers/net/phy/ar40xx.c
-@@ -1200,7 +1200,11 @@ ar40xx_init_port(struct ar40xx_priv *pri
-       ar40xx_rmw(priv, AR40XX_REG_PORT_STATUS(port),
-                       AR40XX_PORT_AUTO_LINK_EN, 0);
- 
--      ar40xx_write(priv, AR40XX_REG_PORT_HEADER(port), 0);
-+      /* CPU port is setting headers to limit output ports */
-+      if (port == 0)
-+              ar40xx_write(priv, AR40XX_REG_PORT_HEADER(port), 0x8);
-+      else
-+              ar40xx_write(priv, AR40XX_REG_PORT_HEADER(port), 0);
- 
-       ar40xx_write(priv, AR40XX_REG_PORT_VLAN0(port), 0);
- 
-@@ -1243,6 +1247,10 @@ ar40xx_init_globals(struct ar40xx_priv *
-       t = (AR40XX_PORT0_FC_THRESH_ON_DFLT << 16) |
-             AR40XX_PORT0_FC_THRESH_OFF_DFLT;
-       ar40xx_write(priv, AR40XX_REG_PORT_FLOWCTRL_THRESH(0), t);
-+
-+      /* set service tag to 802.1q */
-+      t = ETH_P_8021Q | AR40XX_ESS_SERVICE_TAG_STAG;
-+      ar40xx_write(priv, AR40XX_ESS_SERVICE_TAG, t);
- }
- 
- static void
-@@ -1568,7 +1576,11 @@ ar40xx_setup_port(struct ar40xx_priv *pr
-       u32 pvid = priv->vlan_id[priv->pvid[port]];
- 
-       if (priv->vlan) {
--              egress = AR40XX_PORT_VLAN1_OUT_MODE_UNMOD;
-+              if (priv->vlan_tagged & BIT(port))
-+                      egress = AR40XX_PORT_VLAN1_OUT_MODE_TAG;
-+              else
-+                      egress = AR40XX_PORT_VLAN1_OUT_MODE_UNMOD;
-+
-               ingress = AR40XX_IN_SECURE;
-       } else {
-               egress = AR40XX_PORT_VLAN1_OUT_MODE_UNTOUCH;
-@@ -1579,8 +1591,17 @@ ar40xx_setup_port(struct ar40xx_priv *pr
-       t |= pvid << AR40XX_PORT_VLAN0_DEF_CVID_S;
-       ar40xx_write(priv, AR40XX_REG_PORT_VLAN0(port), t);
- 
--      t = AR40XX_PORT_VLAN1_PORT_VLAN_PROP;
--      t |= egress << AR40XX_PORT_VLAN1_OUT_MODE_S;
-+      t = egress << AR40XX_PORT_VLAN1_OUT_MODE_S;
-+
-+      /* set CPU port to core port */
-+      if (port == 0)
-+              t |= AR40XX_PORT_VLAN1_CORE_PORT;
-+
-+      if (priv->vlan_tagged & BIT(port))
-+              t |= AR40XX_PORT_VLAN1_PORT_VLAN_PROP;
-+      else
-+              t |= AR40XX_PORT_VLAN1_PORT_TLS_MODE;
-+
-       ar40xx_write(priv, AR40XX_REG_PORT_VLAN1(port), t);
- 
-       t = members;
---- a/drivers/net/ethernet/qualcomm/essedma/edma_axi.c
-+++ b/drivers/net/ethernet/qualcomm/essedma/edma_axi.c
-@@ -970,7 +970,6 @@ static int edma_axi_probe(struct platfor
-               edma_netdev[i]->netdev_ops = &edma_axi_netdev_ops;
-               edma_netdev[i]->max_mtu = 9000;
-               edma_netdev[i]->features = NETIF_F_HW_CSUM | NETIF_F_RXCSUM
--                                    | NETIF_F_HW_VLAN_CTAG_TX
-                                     | NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_SG |
-                                     NETIF_F_TSO | NETIF_F_GRO;
-               edma_netdev[i]->hw_features = NETIF_F_HW_CSUM | NETIF_F_RXCSUM |
-@@ -982,10 +981,10 @@ static int edma_axi_probe(struct platfor
-                                            NETIF_F_TSO | NETIF_F_GRO;
- 
- #ifdef CONFIG_RFS_ACCEL
--              edma_netdev[i]->features |=  NETIF_F_RXHASH | NETIF_F_NTUPLE;
--              edma_netdev[i]->hw_features |=  NETIF_F_RXHASH | NETIF_F_NTUPLE;
--              edma_netdev[i]->vlan_features |= NETIF_F_RXHASH | 
NETIF_F_NTUPLE;
--              edma_netdev[i]->wanted_features |= NETIF_F_RXHASH | 
NETIF_F_NTUPLE;
-+              edma_netdev[i]->features |=  NETIF_F_NTUPLE;
-+              edma_netdev[i]->hw_features |=  NETIF_F_NTUPLE;
-+              edma_netdev[i]->vlan_features |= NETIF_F_NTUPLE;
-+              edma_netdev[i]->wanted_features |= NETIF_F_NTUPLE;
- #endif
-               edma_set_ethtool_ops(edma_netdev[i]);
- 
---- a/drivers/net/phy/ar40xx.h
-+++ b/drivers/net/phy/ar40xx.h
-@@ -151,6 +151,9 @@ struct ar40xx_mib_desc {
- #define   AR40XX_MIB_FUNC_NO_OP               0x0
- #define   AR40XX_MIB_FUNC_FLUSH               0x1
- 
-+#define AR40XX_ESS_SERVICE_TAG                0x48
-+#define AR40XX_ESS_SERVICE_TAG_STAG   BIT(17)
-+
- #define AR40XX_REG_PORT_STATUS(_i)            (0x07c + (_i) * 4)
- #define   AR40XX_PORT_SPEED                   BITS(0, 2)
- #define   AR40XX_PORT_STATUS_SPEED_S  0
-@@ -179,6 +182,8 @@ struct ar40xx_mib_desc {
- #define   AR40XX_PORT_VLAN0_DEF_CVID_S                16
- 
- #define AR40XX_REG_PORT_VLAN1(_i)             (0x424 + (_i) * 0x8)
-+#define   AR40XX_PORT_VLAN1_CORE_PORT         BIT(9)
-+#define   AR40XX_PORT_VLAN1_PORT_TLS_MODE     BIT(7)
- #define   AR40XX_PORT_VLAN1_PORT_VLAN_PROP    BIT(6)
- #define   AR40XX_PORT_VLAN1_OUT_MODE          BITS(12, 2)
- #define   AR40XX_PORT_VLAN1_OUT_MODE_S                12
-- 
2.29.2


_______________________________________________
openwrt-devel mailing list
openwrt-devel@lists.openwrt.org
https://lists.openwrt.org/mailman/listinfo/openwrt-devel

Reply via email to