linux/drivers/net/dsa/sja1105/sja1105_dynamic_config.h
Vladimir Oltean 3e77e59bf8 net: dsa: sja1105: add support for the SJA1110 switch family
The SJA1110 is basically an SJA1105 with more ports, some integrated
PHYs (100base-T1 and 100base-TX) and an embedded microcontroller which
can be disabled, and the switch core can be controlled by a host running
Linux, over SPI.

This patch contains:
- the static and dynamic config packing functions, for the tables that
  are common with SJA1105
- one more static config tables which is "unique" to the SJA1110
  (actually it is a rehash of stuff that was placed somewhere else in
  SJA1105): the PCP Remapping Table
- a reset and clock configuration procedure for the SJA1110 switch.
  This resets just the switch subsystem, and gates off the clock which
  powers on the embedded microcontroller.
- an RGMII delay configuration procedure for SJA1110, which is very
  similar to SJA1105, but different enough for us to be unable to reuse
  it (this is a pattern that repeats itself)
- some adaptations to dynamic config table entries which are no longer
  programmed in the same way. For example, to delete a VLAN, you used to
  write an entry through the dynamic reconfiguration interface with the
  desired VLAN ID, and with the VALIDENT bit set to false. Now, the VLAN
  table entries contain a TYPE_ENTRY field, which must be set to zero
  (in a backwards-incompatible way) in order for the entry to be deleted,
  or to some other entry for the VLAN to match "inner tagged" or "outer
  tagged" packets.
- a similar thing for the static config: the xMII Mode Parameters Table
  encoding for SGMII and MII (the latter just when attached to a
  100base-TX PHY) just isn't what it used to be in SJA1105. They are
  identical, except there is an extra "special" bit which needs to be
  set. Set it.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-08 14:37:16 -07:00

42 lines
1.1 KiB
C

/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright (c) 2019, Vladimir Oltean <olteanv@gmail.com>
*/
#ifndef _SJA1105_DYNAMIC_CONFIG_H
#define _SJA1105_DYNAMIC_CONFIG_H
#include "sja1105.h"
#include <linux/packing.h>
/* Special index that can be used for sja1105_dynamic_config_read */
#define SJA1105_SEARCH -1
struct sja1105_dyn_cmd;
struct sja1105_dynamic_table_ops {
/* This returns size_t just to keep same prototype as the
* static config ops, of which we are reusing some functions.
*/
size_t (*entry_packing)(void *buf, void *entry_ptr, enum packing_op op);
void (*cmd_packing)(void *buf, struct sja1105_dyn_cmd *cmd,
enum packing_op op);
size_t max_entry_count;
size_t packed_size;
u64 addr;
u8 access;
};
struct sja1105_mgmt_entry {
u64 tsreg;
u64 takets;
u64 macaddr;
u64 destports;
u64 enfport;
u64 index;
};
extern const struct sja1105_dynamic_table_ops sja1105et_dyn_ops[BLK_IDX_MAX_DYN];
extern const struct sja1105_dynamic_table_ops sja1105pqrs_dyn_ops[BLK_IDX_MAX_DYN];
extern const struct sja1105_dynamic_table_ops sja1110_dyn_ops[BLK_IDX_MAX_DYN];
#endif