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net: dsa: realtek: rtl8365mb: add support for rtl8_4t
The trailing tag is also supported by this family. The default is still
rtl8_4 but now the switch supports changing the tag to rtl8_4t.
Reintroduce the dropped cpu in struct rtl8365mb (removed by 6147631
).
Signed-off-by: Luiz Angelo Daros de Luca <luizluca@gmail.com>
Reviewed-by: Alvin Šipraga <alsi@bang-olufsen.dk>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
parent
cd87fecded
commit
59dc7b4f7f
1 changed files with 62 additions and 15 deletions
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@ -566,6 +566,7 @@ struct rtl8365mb_port {
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* @chip_ver: chip silicon revision
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* @port_mask: mask of all ports
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* @learn_limit_max: maximum number of L2 addresses the chip can learn
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* @cpu: CPU tagging and CPU port configuration for this chip
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* @mib_lock: prevent concurrent reads of MIB counters
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* @ports: per-port data
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* @jam_table: chip-specific initialization jam table
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@ -580,6 +581,7 @@ struct rtl8365mb {
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u32 chip_ver;
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u32 port_mask;
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u32 learn_limit_max;
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struct rtl8365mb_cpu cpu;
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struct mutex mib_lock;
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struct rtl8365mb_port ports[RTL8365MB_MAX_NUM_PORTS];
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const struct rtl8365mb_jam_tbl_entry *jam_table;
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@ -782,6 +784,16 @@ static enum dsa_tag_protocol
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rtl8365mb_get_tag_protocol(struct dsa_switch *ds, int port,
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enum dsa_tag_protocol mp)
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{
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struct realtek_priv *priv = ds->priv;
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struct rtl8365mb_cpu *cpu;
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struct rtl8365mb *mb;
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mb = priv->chip_data;
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cpu = &mb->cpu;
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if (cpu->position == RTL8365MB_CPU_POS_BEFORE_CRC)
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return DSA_TAG_PROTO_RTL8_4T;
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return DSA_TAG_PROTO_RTL8_4;
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}
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@ -1737,8 +1749,10 @@ static void rtl8365mb_irq_teardown(struct realtek_priv *priv)
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}
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}
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static int rtl8365mb_cpu_config(struct realtek_priv *priv, const struct rtl8365mb_cpu *cpu)
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static int rtl8365mb_cpu_config(struct realtek_priv *priv)
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{
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struct rtl8365mb *mb = priv->chip_data;
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struct rtl8365mb_cpu *cpu = &mb->cpu;
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u32 val;
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int ret;
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@ -1764,6 +1778,37 @@ static int rtl8365mb_cpu_config(struct realtek_priv *priv, const struct rtl8365m
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return 0;
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}
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static int rtl8365mb_change_tag_protocol(struct dsa_switch *ds, int cpu_index,
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enum dsa_tag_protocol proto)
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{
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struct realtek_priv *priv = ds->priv;
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struct rtl8365mb_cpu *cpu;
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struct rtl8365mb *mb;
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mb = priv->chip_data;
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cpu = &mb->cpu;
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switch (proto) {
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case DSA_TAG_PROTO_RTL8_4:
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cpu->format = RTL8365MB_CPU_FORMAT_8BYTES;
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cpu->position = RTL8365MB_CPU_POS_AFTER_SA;
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break;
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case DSA_TAG_PROTO_RTL8_4T:
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cpu->format = RTL8365MB_CPU_FORMAT_8BYTES;
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cpu->position = RTL8365MB_CPU_POS_BEFORE_CRC;
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break;
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/* The switch also supports a 4-byte format, similar to rtl4a but with
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* the same 0x04 8-bit version and probably 8-bit port source/dest.
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* There is no public doc about it. Not supported yet and it will probably
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* never be.
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*/
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default:
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return -EPROTONOSUPPORT;
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}
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return rtl8365mb_cpu_config(priv);
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}
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static int rtl8365mb_switch_init(struct realtek_priv *priv)
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{
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struct rtl8365mb *mb = priv->chip_data;
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@ -1810,13 +1855,14 @@ static int rtl8365mb_reset_chip(struct realtek_priv *priv)
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static int rtl8365mb_setup(struct dsa_switch *ds)
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{
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struct realtek_priv *priv = ds->priv;
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struct rtl8365mb_cpu cpu = {0};
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struct rtl8365mb_cpu *cpu;
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struct dsa_port *cpu_dp;
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struct rtl8365mb *mb;
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int ret;
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int i;
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mb = priv->chip_data;
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cpu = &mb->cpu;
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ret = rtl8365mb_reset_chip(priv);
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if (ret) {
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@ -1839,21 +1885,14 @@ static int rtl8365mb_setup(struct dsa_switch *ds)
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dev_info(priv->dev, "no interrupt support\n");
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/* Configure CPU tagging */
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cpu.trap_port = RTL8365MB_MAX_NUM_PORTS;
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dsa_switch_for_each_cpu_port(cpu_dp, priv->ds) {
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cpu.mask |= BIT(cpu_dp->index);
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cpu->mask |= BIT(cpu_dp->index);
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if (cpu.trap_port == RTL8365MB_MAX_NUM_PORTS)
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cpu.trap_port = cpu_dp->index;
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if (cpu->trap_port == RTL8365MB_MAX_NUM_PORTS)
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cpu->trap_port = cpu_dp->index;
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}
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cpu.enable = cpu.mask > 0;
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cpu.insert = RTL8365MB_CPU_INSERT_TO_ALL;
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cpu.position = RTL8365MB_CPU_POS_AFTER_SA;
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cpu.rx_length = RTL8365MB_CPU_RXLEN_64BYTES;
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cpu.format = RTL8365MB_CPU_FORMAT_8BYTES;
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ret = rtl8365mb_cpu_config(priv, &cpu);
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cpu->enable = cpu->mask > 0;
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ret = rtl8365mb_cpu_config(priv);
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if (ret)
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goto out_teardown_irq;
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@ -1865,7 +1904,7 @@ static int rtl8365mb_setup(struct dsa_switch *ds)
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continue;
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/* Forward only to the CPU */
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ret = rtl8365mb_port_set_isolation(priv, i, cpu.mask);
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ret = rtl8365mb_port_set_isolation(priv, i, cpu->mask);
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if (ret)
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goto out_teardown_irq;
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@ -1995,6 +2034,12 @@ static int rtl8365mb_detect(struct realtek_priv *priv)
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mb->jam_table = rtl8365mb_init_jam_8365mb_vc;
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mb->jam_size = ARRAY_SIZE(rtl8365mb_init_jam_8365mb_vc);
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mb->cpu.trap_port = RTL8365MB_MAX_NUM_PORTS;
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mb->cpu.insert = RTL8365MB_CPU_INSERT_TO_ALL;
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mb->cpu.position = RTL8365MB_CPU_POS_AFTER_SA;
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mb->cpu.rx_length = RTL8365MB_CPU_RXLEN_64BYTES;
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mb->cpu.format = RTL8365MB_CPU_FORMAT_8BYTES;
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break;
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default:
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dev_err(priv->dev,
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@ -2008,6 +2053,7 @@ static int rtl8365mb_detect(struct realtek_priv *priv)
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static const struct dsa_switch_ops rtl8365mb_switch_ops_smi = {
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.get_tag_protocol = rtl8365mb_get_tag_protocol,
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.change_tag_protocol = rtl8365mb_change_tag_protocol,
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.setup = rtl8365mb_setup,
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.teardown = rtl8365mb_teardown,
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.phylink_get_caps = rtl8365mb_phylink_get_caps,
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@ -2026,6 +2072,7 @@ static const struct dsa_switch_ops rtl8365mb_switch_ops_smi = {
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static const struct dsa_switch_ops rtl8365mb_switch_ops_mdio = {
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.get_tag_protocol = rtl8365mb_get_tag_protocol,
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.change_tag_protocol = rtl8365mb_change_tag_protocol,
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.setup = rtl8365mb_setup,
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.teardown = rtl8365mb_teardown,
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.phylink_get_caps = rtl8365mb_phylink_get_caps,
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