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openwrt/target/linux/layerscape/patches-5.4/701-net-0251-net-mscc-ocelot-split-assignment-of-the-cpu-port-int.patch
Yangbo Lu cddd459140 layerscape: add patches-5.4
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>
2020-05-07 12:53:06 +02:00

164 lines
5.8 KiB
Diff

From c6f39379529e74eccbe317e70bb11d18110c63d4 Mon Sep 17 00:00:00 2001
From: Vladimir Oltean <vladimir.oltean@nxp.com>
Date: Sat, 9 Nov 2019 15:03:00 +0200
Subject: [PATCH] net: mscc: ocelot: split assignment of the cpu port into a
separate function
Now that the places that configure routing destinations for the CPU port
have been marked as such, allow callers to specify their own CPU port
that is different than ocelot->num_phys_ports. A user will be the Felix
DSA driver, where the CPU port is one of the physical ports (NPI mode).
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
drivers/net/ethernet/mscc/ocelot.c | 65 +++++++++++++++++++++-----------
drivers/net/ethernet/mscc/ocelot.h | 12 ++++++
drivers/net/ethernet/mscc/ocelot_board.c | 2 +
3 files changed, 57 insertions(+), 22 deletions(-)
--- a/drivers/net/ethernet/mscc/ocelot.c
+++ b/drivers/net/ethernet/mscc/ocelot.c
@@ -380,12 +380,6 @@ static void ocelot_vlan_init(struct ocel
ocelot->vlan_mask[0] = GENMASK(ocelot->num_phys_ports - 1, 0);
ocelot_vlant_set_mask(ocelot, 0, ocelot->vlan_mask[0]);
- /* Configure the CPU port to be VLAN aware */
- ocelot_write_gix(ocelot, ANA_PORT_VLAN_CFG_VLAN_VID(0) |
- ANA_PORT_VLAN_CFG_VLAN_AWARE_ENA |
- ANA_PORT_VLAN_CFG_VLAN_POP_CNT(1),
- ANA_PORT_VLAN_CFG, ocelot->num_phys_ports);
-
/* Set vlan ingress filter mask to all ports but the CPU port by
* default.
*/
@@ -2228,11 +2222,52 @@ int ocelot_probe_port(struct ocelot *oce
}
EXPORT_SYMBOL(ocelot_probe_port);
+void ocelot_set_cpu_port(struct ocelot *ocelot, int cpu,
+ enum ocelot_tag_prefix injection,
+ enum ocelot_tag_prefix extraction)
+{
+ /* Configure and enable the CPU port. */
+ ocelot_write_rix(ocelot, 0, ANA_PGID_PGID, cpu);
+ ocelot_write_rix(ocelot, BIT(cpu), ANA_PGID_PGID, PGID_CPU);
+ ocelot_write_gix(ocelot, ANA_PORT_PORT_CFG_RECV_ENA |
+ ANA_PORT_PORT_CFG_PORTID_VAL(cpu),
+ ANA_PORT_PORT_CFG, cpu);
+
+ /* If the CPU port is a physical port, set up the port in Node
+ * Processor Interface (NPI) mode. This is the mode through which
+ * frames can be injected from and extracted to an external CPU.
+ * Only one port can be an NPI at the same time.
+ */
+ if (cpu < ocelot->num_phys_ports) {
+ ocelot_write(ocelot, QSYS_EXT_CPU_CFG_EXT_CPUQ_MSK_M |
+ QSYS_EXT_CPU_CFG_EXT_CPU_PORT(cpu),
+ QSYS_EXT_CPU_CFG);
+ }
+
+ /* CPU port Injection/Extraction configuration */
+ ocelot_write_rix(ocelot, QSYS_SWITCH_PORT_MODE_INGRESS_DROP_MODE |
+ QSYS_SWITCH_PORT_MODE_SCH_NEXT_CFG(1) |
+ QSYS_SWITCH_PORT_MODE_PORT_ENA,
+ QSYS_SWITCH_PORT_MODE, cpu);
+ ocelot_write_rix(ocelot, SYS_PORT_MODE_INCL_XTR_HDR(extraction) |
+ SYS_PORT_MODE_INCL_INJ_HDR(injection),
+ SYS_PORT_MODE, cpu);
+
+ /* Configure the CPU port to be VLAN aware */
+ ocelot_write_gix(ocelot, ANA_PORT_VLAN_CFG_VLAN_VID(0) |
+ ANA_PORT_VLAN_CFG_VLAN_AWARE_ENA |
+ ANA_PORT_VLAN_CFG_VLAN_POP_CNT(1),
+ ANA_PORT_VLAN_CFG, cpu);
+
+ ocelot->cpu = cpu;
+}
+EXPORT_SYMBOL(ocelot_set_cpu_port);
+
int ocelot_init(struct ocelot *ocelot)
{
- u32 port;
- int i, ret, cpu = ocelot->num_phys_ports;
char queue_name[32];
+ int i, ret;
+ u32 port;
ocelot->lags = devm_kcalloc(ocelot->dev, ocelot->num_phys_ports,
sizeof(u32), GFP_KERNEL);
@@ -2312,13 +2347,6 @@ int ocelot_init(struct ocelot *ocelot)
ocelot_write_rix(ocelot, 0, ANA_PGID_PGID, PGID_SRC + port);
}
- /* Configure and enable the CPU port. */
- ocelot_write_rix(ocelot, 0, ANA_PGID_PGID, cpu);
- ocelot_write_rix(ocelot, BIT(cpu), ANA_PGID_PGID, PGID_CPU);
- ocelot_write_gix(ocelot, ANA_PORT_PORT_CFG_RECV_ENA |
- ANA_PORT_PORT_CFG_PORTID_VAL(cpu),
- ANA_PORT_PORT_CFG, cpu);
-
/* Allow broadcast MAC frames. */
for (i = ocelot->num_phys_ports + 1; i < PGID_CPU; i++) {
u32 val = ANA_PGID_PGID_PGID(GENMASK(ocelot->num_phys_ports - 1, 0));
@@ -2331,13 +2359,6 @@ int ocelot_init(struct ocelot *ocelot)
ocelot_write_rix(ocelot, 0, ANA_PGID_PGID, PGID_MCIPV4);
ocelot_write_rix(ocelot, 0, ANA_PGID_PGID, PGID_MCIPV6);
- /* CPU port Injection/Extraction configuration */
- ocelot_write_rix(ocelot, QSYS_SWITCH_PORT_MODE_INGRESS_DROP_MODE |
- QSYS_SWITCH_PORT_MODE_SCH_NEXT_CFG(1) |
- QSYS_SWITCH_PORT_MODE_PORT_ENA,
- QSYS_SWITCH_PORT_MODE, cpu);
- ocelot_write_rix(ocelot, SYS_PORT_MODE_INCL_XTR_HDR(1) |
- SYS_PORT_MODE_INCL_INJ_HDR(1), SYS_PORT_MODE, cpu);
/* Allow manual injection via DEVCPU_QS registers, and byte swap these
* registers endianness.
*/
--- a/drivers/net/ethernet/mscc/ocelot.h
+++ b/drivers/net/ethernet/mscc/ocelot.h
@@ -427,6 +427,13 @@ struct ocelot_multicast {
u16 ports;
};
+enum ocelot_tag_prefix {
+ OCELOT_TAG_PREFIX_DISABLED = 0,
+ OCELOT_TAG_PREFIX_NONE,
+ OCELOT_TAG_PREFIX_SHORT,
+ OCELOT_TAG_PREFIX_LONG,
+};
+
struct ocelot_port;
struct ocelot_stat_layout {
@@ -455,6 +462,7 @@ struct ocelot {
u8 num_phys_ports;
u8 num_cpu_ports;
+ u8 cpu;
struct ocelot_port **ports;
u32 *lags;
@@ -552,6 +560,10 @@ int ocelot_probe_port(struct ocelot *oce
void __iomem *regs,
struct phy_device *phy);
+void ocelot_set_cpu_port(struct ocelot *ocelot, int cpu,
+ enum ocelot_tag_prefix injection,
+ enum ocelot_tag_prefix extraction);
+
extern struct notifier_block ocelot_netdevice_nb;
extern struct notifier_block ocelot_switchdev_nb;
extern struct notifier_block ocelot_switchdev_blocking_nb;
--- a/drivers/net/ethernet/mscc/ocelot_board.c
+++ b/drivers/net/ethernet/mscc/ocelot_board.c
@@ -373,6 +373,8 @@ static int mscc_ocelot_probe(struct plat
sizeof(struct ocelot_port *), GFP_KERNEL);
ocelot_init(ocelot);
+ ocelot_set_cpu_port(ocelot, ocelot->num_phys_ports,
+ OCELOT_TAG_PREFIX_NONE, OCELOT_TAG_PREFIX_NONE);
for_each_available_child_of_node(ports, portnp) {
struct ocelot_port_private *priv;