mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-23 07:22:33 +00:00
a2d4b5711a
Removed upstreamed: pending-5.10/841-USB-serial-option-add-ZTE-MF286D-modem.patch[1] bcm27xx/950-0592-drm-vc4-Allow-DBLCLK-modes-even-if-horz-timing-is-od.patch[2] All other patches automatically rebased. 1. https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.10.101&id=7113440a36c741efd7c76e3d70b3634100120cdb 2. https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.10.101&id=21c890ca8eaecea06cabb92be2a53a6f26f56383 Build system: x86_64 Build-tested: bcm2711/RPi4B, mt7622/RT3200 Run-tested: bcm2711/RPi4B, mt7622/RT3200 Signed-off-by: John Audia <graysky@archlinux.us>
102 lines
3.2 KiB
Diff
102 lines
3.2 KiB
Diff
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,
|