lantiq: xrx200: replace patch with upstream version

This commit replaces patch number 0703 with the upstream accepted
version. This patch requires backporting an additional patch to
avoid conflicts.

The only significant change is the lower maximum MTU. Packets with
lengths over 2400 may be dropped.

Signed-off-by: Aleksander Jan Bajkowski <olek2@wp.pl>
(cherry picked from commit b4970dab6b0c3e13715f4b13de42d72a74c1c9e9)

1 files changed, 0 insertions, 101 deletions

diff --git a/target/linux/lantiq/patches-5.10/0703-net-lantiq-enable-jumbo-frames-on-GSWIP.patch b/target/linux/lantiq/patches-5.10/0703-net-lantiq-enable-jumbo-frames-on-GSWIP.patch
deleted file mode 100644
index 6593e43db7..0000000000
--- a/target/linux/lantiq/patches-5.10/0703-net-lantiq-enable-jumbo-frames-on-GSWIP.patch
+++ /dev/null
@@ -1,101 +0,0 @@
-From 24a43ae2ac0ea06c474b1c80dc75651294d49321 Mon Sep 17 00:00:00 2001
-From: Thomas Nixon <tom@tomn.co.uk>
-Date: Sat, 2 Oct 2021 00:48:05 +0100
-Subject: [PATCH 2/2] net: lantiq: enable jumbo frames on GSWIP
-
-This enables non-standard MTUs on a per-port basis, with the overall
-frame size set based on the CPU port.
-
-When the MTU is not changed, this should have no effect.
-
-Long packets crash the switch with MTUs of greater than 2526, so the
-maximum is limited for now.
-
-Signed-off-by: Thomas Nixon <tom@tomn.co.uk>
----
- drivers/net/dsa/lantiq_gswip.c | 46 +++++++++++++++++++++++++++++++---
- 1 file changed, 42 insertions(+), 4 deletions(-)
-
---- a/drivers/net/dsa/lantiq_gswip.c
-+++ b/drivers/net/dsa/lantiq_gswip.c
-@@ -238,6 +238,11 @@
- 
- #define XRX200_GPHY_FW_ALIGN	(16 * 1024)
- 
-+/* maximum packet size supported by the switch; in theory this should be 9600,
-+ * but long packets currently cause lock-ups with an MTU of over 2526
-+ */
-+#define GSWIP_MAX_PACKET_LENGTH	2556
-+
- struct gswip_hw_info {
- 	int max_ports;
- 	int cpu_port;
-@@ -856,10 +861,6 @@ static int gswip_setup(struct dsa_switch
- 	gswip_switch_mask(priv, 0, GSWIP_PCE_PCTRL_0_INGRESS,
- 			  GSWIP_PCE_PCTRL_0p(cpu_port));
- 
--	gswip_switch_mask(priv, 0, GSWIP_MAC_CTRL_2_MLEN,
--			  GSWIP_MAC_CTRL_2p(cpu_port));
--	gswip_switch_w(priv, VLAN_ETH_FRAME_LEN + 8 + ETH_FCS_LEN,
--		       GSWIP_MAC_FLEN);
- 	gswip_switch_mask(priv, 0, GSWIP_BM_QUEUE_GCTRL_GL_MOD,
- 			  GSWIP_BM_QUEUE_GCTRL);
- 
-@@ -876,6 +877,8 @@ static int gswip_setup(struct dsa_switch
- 		return err;
- 	}
- 
-+	ds->mtu_enforcement_ingress = true;
-+
- 	gswip_port_enable(ds, cpu_port, NULL);
- 	return 0;
- }
-@@ -1438,6 +1441,39 @@ static int gswip_port_fdb_dump(struct ds
- 	return 0;
- }
- 
-+static int gswip_port_max_mtu(struct dsa_switch *ds, int port)
-+{
-+	/* includes 8 bytes for special header */
-+	return GSWIP_MAX_PACKET_LENGTH - VLAN_ETH_HLEN - ETH_FCS_LEN;
-+}
-+
-+static int gswip_port_change_mtu(struct dsa_switch *ds, int port, int new_mtu)
-+{
-+	struct gswip_priv *priv = ds->priv;
-+	int cpu_port = priv->hw_info->cpu_port;
-+
-+	/* cpu port always has maximum mtu of user ports, so use it to set
-+	 * switch frame size, including 8 byte special header
-+	 */
-+	if (port == cpu_port) {
-+		new_mtu += 8;
-+		gswip_switch_w(priv, VLAN_ETH_HLEN + new_mtu + ETH_FCS_LEN,
-+			       GSWIP_MAC_FLEN);
-+	}
-+
-+	/* enable MLEN for ports with non-standard MTUs, including the special
-+	 * header on the CPU port added above
-+	 */
-+	if (new_mtu != ETH_DATA_LEN)
-+		gswip_switch_mask(priv, 0, GSWIP_MAC_CTRL_2_MLEN,
-+				  GSWIP_MAC_CTRL_2p(port));
-+	else
-+		gswip_switch_mask(priv, GSWIP_MAC_CTRL_2_MLEN, 0,
-+				  GSWIP_MAC_CTRL_2p(port));
-+
-+	return 0;
-+}
-+
- static void gswip_phylink_validate(struct dsa_switch *ds, int port,
- 				   unsigned long *supported,
- 				   struct phylink_link_state *state)
-@@ -1781,6 +1817,8 @@ static const struct dsa_switch_ops gswip
- 	.port_fdb_add		= gswip_port_fdb_add,
- 	.port_fdb_del		= gswip_port_fdb_del,
- 	.port_fdb_dump		= gswip_port_fdb_dump,
-+	.port_change_mtu	= gswip_port_change_mtu,
-+	.port_max_mtu		= gswip_port_max_mtu,
- 	.phylink_validate	= gswip_phylink_validate,
- 	.phylink_mac_config	= gswip_phylink_mac_config,
- 	.phylink_mac_link_down	= gswip_phylink_mac_link_down,