cddd459140
Add patches for linux-5.4. The patches are from NXP LSDK-20.04 release which was tagged LSDK-20.04-V5.4. https://source.codeaurora.org/external/qoriq/qoriq-components/linux/ For boards LS1021A-IOT, and Traverse-LS1043 which are not involved in LSDK, port the dts patches from 4.14. The patches are sorted into the following categories: 301-arch-xxxx 302-dts-xxxx 303-core-xxxx 701-net-xxxx 801-audio-xxxx 802-can-xxxx 803-clock-xxxx 804-crypto-xxxx 805-display-xxxx 806-dma-xxxx 807-gpio-xxxx 808-i2c-xxxx 809-jailhouse-xxxx 810-keys-xxxx 811-kvm-xxxx 812-pcie-xxxx 813-pm-xxxx 814-qe-xxxx 815-sata-xxxx 816-sdhc-xxxx 817-spi-xxxx 818-thermal-xxxx 819-uart-xxxx 820-usb-xxxx 821-vfio-xxxx Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
88 lines
3.4 KiB
Diff
88 lines
3.4 KiB
Diff
From e870793b277eeaf3c455971d9610f039fd9ab160 Mon Sep 17 00:00:00 2001
|
|
From: Vladimir Oltean <vladimir.oltean@nxp.com>
|
|
Date: Thu, 14 Nov 2019 17:03:23 +0200
|
|
Subject: [PATCH] net: mscc: ocelot: create a helper for changing the port MTU
|
|
|
|
Since in an NPI/DSA setup, not all ports will have the same MTU, we need
|
|
to make sure the watermarks for pause frames and/or tail dropping logic
|
|
that existed in the driver is still coherent for the new MTU values.
|
|
|
|
We need to do this because the NPI (aka external CPU) port needs an
|
|
increased MTU for the DSA tag. This will be done in a future patch.
|
|
|
|
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
|
|
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
|
|
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
|
|
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
---
|
|
drivers/net/ethernet/mscc/ocelot.c | 40 ++++++++++++++++++++++----------------
|
|
1 file changed, 23 insertions(+), 17 deletions(-)
|
|
|
|
--- a/drivers/net/ethernet/mscc/ocelot.c
|
|
+++ b/drivers/net/ethernet/mscc/ocelot.c
|
|
@@ -2101,11 +2101,32 @@ static int ocelot_init_timestamp(struct
|
|
return 0;
|
|
}
|
|
|
|
-static void ocelot_init_port(struct ocelot *ocelot, int port)
|
|
+static void ocelot_port_set_mtu(struct ocelot *ocelot, int port, size_t mtu)
|
|
{
|
|
struct ocelot_port *ocelot_port = ocelot->ports[port];
|
|
int atop_wm;
|
|
|
|
+ ocelot_port_writel(ocelot_port, mtu, DEV_MAC_MAXLEN_CFG);
|
|
+
|
|
+ /* Set Pause WM hysteresis
|
|
+ * 152 = 6 * mtu / OCELOT_BUFFER_CELL_SZ
|
|
+ * 101 = 4 * mtu / OCELOT_BUFFER_CELL_SZ
|
|
+ */
|
|
+ ocelot_write_rix(ocelot, SYS_PAUSE_CFG_PAUSE_ENA |
|
|
+ SYS_PAUSE_CFG_PAUSE_STOP(101) |
|
|
+ SYS_PAUSE_CFG_PAUSE_START(152), SYS_PAUSE_CFG, port);
|
|
+
|
|
+ /* Tail dropping watermark */
|
|
+ atop_wm = (ocelot->shared_queue_sz - 9 * mtu) / OCELOT_BUFFER_CELL_SZ;
|
|
+ ocelot_write_rix(ocelot, ocelot_wm_enc(9 * mtu),
|
|
+ SYS_ATOP, port);
|
|
+ ocelot_write(ocelot, ocelot_wm_enc(atop_wm), SYS_ATOP_TOT_CFG);
|
|
+}
|
|
+
|
|
+static void ocelot_init_port(struct ocelot *ocelot, int port)
|
|
+{
|
|
+ struct ocelot_port *ocelot_port = ocelot->ports[port];
|
|
+
|
|
INIT_LIST_HEAD(&ocelot_port->skbs);
|
|
|
|
/* Basic L2 initialization */
|
|
@@ -2126,8 +2147,7 @@ static void ocelot_init_port(struct ocel
|
|
DEV_MAC_HDX_CFG);
|
|
|
|
/* Set Max Length and maximum tags allowed */
|
|
- ocelot_port_writel(ocelot_port, VLAN_ETH_FRAME_LEN,
|
|
- DEV_MAC_MAXLEN_CFG);
|
|
+ ocelot_port_set_mtu(ocelot, port, VLAN_ETH_FRAME_LEN);
|
|
ocelot_port_writel(ocelot_port, DEV_MAC_TAGS_CFG_TAG_ID(ETH_P_8021AD) |
|
|
DEV_MAC_TAGS_CFG_VLAN_AWR_ENA |
|
|
DEV_MAC_TAGS_CFG_VLAN_LEN_AWR_ENA,
|
|
@@ -2137,20 +2157,6 @@ static void ocelot_init_port(struct ocel
|
|
ocelot_port_writel(ocelot_port, 0, DEV_MAC_FC_MAC_HIGH_CFG);
|
|
ocelot_port_writel(ocelot_port, 0, DEV_MAC_FC_MAC_LOW_CFG);
|
|
|
|
- /* Set Pause WM hysteresis
|
|
- * 152 = 6 * VLAN_ETH_FRAME_LEN / OCELOT_BUFFER_CELL_SZ
|
|
- * 101 = 4 * VLAN_ETH_FRAME_LEN / OCELOT_BUFFER_CELL_SZ
|
|
- */
|
|
- ocelot_write_rix(ocelot, SYS_PAUSE_CFG_PAUSE_ENA |
|
|
- SYS_PAUSE_CFG_PAUSE_STOP(101) |
|
|
- SYS_PAUSE_CFG_PAUSE_START(152), SYS_PAUSE_CFG, port);
|
|
-
|
|
- /* Tail dropping watermark */
|
|
- atop_wm = (ocelot->shared_queue_sz - 9 * VLAN_ETH_FRAME_LEN) / OCELOT_BUFFER_CELL_SZ;
|
|
- ocelot_write_rix(ocelot, ocelot_wm_enc(9 * VLAN_ETH_FRAME_LEN),
|
|
- SYS_ATOP, port);
|
|
- ocelot_write(ocelot, ocelot_wm_enc(atop_wm), SYS_ATOP_TOT_CFG);
|
|
-
|
|
/* Drop frames with multicast source address */
|
|
ocelot_rmw_gix(ocelot, ANA_PORT_DROP_CFG_DROP_MC_SMAC_ENA,
|
|
ANA_PORT_DROP_CFG_DROP_MC_SMAC_ENA,
|