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freebsd-dev/sys/dev/etherswitch/rtl8366/rtl8366rbvar.h
Adrian Chadd a043e8c76b Commit the first pass of the etherswitch support. 
This is designed to support the very basic ethernet switch chip behaviour,
specifically:

* accessing switch register space;
* accessing per-PHY registers (for switches that actually expose PHYs);
* basic vlan group support, which applies for the rtl8366 driver but not
  for the atheros switches.

This also includes initial support for:

* rtl8366rb support - which is a 10/100/1000 switch which supports
  vlan groups;
* Initial Atheros AR8316 switch support - which is a 10/100/1000 switch
  which supports an alternate vlan configuration (so the vlan group
  methods are stubbed.)

The general idea here is that the switch driver may speak to a variety of
backend busses (mdio, i2c, spi, whatever) and expose:

* If applicable, one or more MDIO busses which ethernet interfaces can
  then attach PHYs to via miiproxy/mdioproxy;

* exposes miibusses, one for each port at the moment, so ..

* .. a PHY can be exposed on each miibus, for each switch port, with all
  of the existing MII/ifnet framework.

However:

* The ifnet is manually created for now, and it isn't linked into the
  interface list, nor can you (currently) send/receive frames on this ifnet.
  At some point in the future there may be _some_ support for this, for
  switches with a multi-port, isolated mode.

* I'm still in the process of sorting out correct(er) locking.

TODO:

* ray's switch code in zrouter (zrouter.org) includes a much more developed
  newbus API that covers the various switch methods, as well as a
  capability API so drivers, the switch layer and the userland utility
  can properly control the subset of supported features.

  The plan is to sort that out later, once the rest of ray's switch drivers
  are brought over and extended to export MII busses and PHYs.

Submitted by:	Stefan Bethke <stb@lassitu.de>
Reviewed by:	ray
2012-05-11 20:53:20 +00:00

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/*-
* Copyright (c) 2011-2012 Stefan Bethke.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _DEV_ETHERSWITCH_RTL8366RBVAR_H_
#define _DEV_ETHERSWITCH_RTL8366RBVAR_H_
#define RTL8366RB_IIC_ADDR 0xa8
#define RTL_IICBUS_TIMEOUT 100 /* us */
#define RTL_IICBUS_READ 1
#define RTL_IICBUS_WRITE 0
/* number of times to try and select the chip on the I2C bus */
#define RTL_IICBUS_RETRIES 3
#define RTL_IICBUS_RETRY_SLEEP (hz/1000)
/* Register definitions */
/* Switch Global Configuration */
#define RTL8366RB_SGCR 0x0000
#define RTL8366RB_SGCR_EN_BC_STORM_CTRL 0x0001
#define RTL8366RB_SGCR_MAX_LENGTH_MASK 0x0030
#define RTL8366RB_SGCR_MAX_LENGTH_1522 0x0000
#define RTL8366RB_SGCR_MAX_LENGTH_1536 0x0010
#define RTL8366RB_SGCR_MAX_LENGTH_1552 0x0020
#define RTL8366RB_SGCR_MAX_LENGTH_9216 0x0030
#define RTL8366RB_SGCR_EN_VLAN 0x2000
#define RTL8366RB_SGCR_EN_VLAN_4KTB 0x4000
#define RTL8366RB_SGCR_EN_QOS 0x8000
/* Port Enable Control: DISABLE_PORT[5:0] */
#define RTL8366RB_PECR 0x0001
/* Switch Security Control 0: DIS_LEARN[5:0] */
#define RTL8366RB_SSCR0 0x0002
/* Switch Security Control 1: DIS_AGE[5:0] */
#define RTL8366RB_SSCR1 0x0003
/* Switch Security Control 2 */
#define RTL8366RB_SSCR2 0x0004
#define RTL8366RB_SSCR2_DROP_UNKNOWN_DA 0x0001
/* Port Link Status: two ports per register */
#define RTL8366RB_PLSR_BASE 0x0014
#define RTL8366RB_PLSR_SPEED_MASK 0x03
#define RTL8366RB_PLSR_SPEED_10 0x00
#define RTL8366RB_PLSR_SPEED_100 0x01
#define RTL8366RB_PLSR_SPEED_1000 0x02
#define RTL8366RB_PLSR_FULLDUPLEX 0x08
#define RTL8366RB_PLSR_LINK 0x10
#define RTL8366RB_PLSR_TXPAUSE 0x20
#define RTL8366RB_PLSR_RXPAUSE 0x40
#define RTL8366RB_PLSR_NO_AUTO 0x80
/* VLAN Member Configuration, 3 registers per VLAN */
#define RTL8366RB_VMCR_BASE 0x0020
#define RTL8366RB_VMCR_MULT 3
#define RTL8366RB_VMCR_DOT1Q_REG 0
#define RTL8366RB_VMCR_DOT1Q_VID_SHIFT 0
#define RTL8366RB_VMCR_DOT1Q_VID_MASK 0x0fff
#define RTL8366RB_VMCR_DOT1Q_PCP_SHIFT 12
#define RTL8366RB_VMCR_DOT1Q_PCP_MASK 0x7000
#define RTL8366RB_VMCR_MU_REG 1
#define RTL8366RB_VMCR_MU_MEMBER_SHIFT 0
#define RTL8366RB_VMCR_MU_MEMBER_MASK 0x00ff
#define RTL8366RB_VMCR_MU_UNTAG_SHIFT 8
#define RTL8366RB_VMCR_MU_UNTAG_MASK 0xff00
#define RTL8366RB_VMCR_FID_REG 2
#define RTL8366RB_VMCR_FID_FID_SHIFT 0
#define RTL8366RB_VMCR_FID_FID_MASK 0x0007
#define RTL8366RB_VMCR(_reg, _vlan) \
(RTL8366RB_VMCR_BASE + _reg + _vlan * RTL8366RB_VMCR_MULT)
/* VLAN Identifier */
#define RTL8366RB_VMCR_VID(_r) \
(_r[RTL8366RB_VMCR_DOT1Q_REG] & RTL8366RB_VMCR_DOT1Q_VID_MASK)
/* Priority Code Point */
#define RTL8366RB_VMCR_PCP(_r) \
((_r[RTL8366RB_VMCR_DOT1Q_REG] & RTL8366RB_VMCR_DOT1Q_PCP_MASK) \
>> RTL8366RB_VMCR_DOT1Q_PCP_SHIFT)
/* Member ports */
#define RTL8366RB_VMCR_MEMBER(_r) \
(_r[RTL8366RB_VMCR_MU_REG] & RTL8366RB_VMCR_MU_MEMBER_MASK)
/* Untagged ports */
#define RTL8366RB_VMCR_UNTAG(_r) \
((_r[RTL8366RB_VMCR_MU_REG] & RTL8366RB_VMCR_MU_UNTAG_MASK) \
>> RTL8366RB_VMCR_MU_UNTAG_SHIFT)
/* Forwarding ID */
#define RTL8366RB_VMCR_FID(_r) \
(_r[RTL8366RB_VMCR_FID_REG] & RTL8366RB_VMCR_FID_FID_MASK)
/*
* Port VLAN Control, 4 ports per register
* Determines the VID for untagged ingress frames through
* index into VMC.
*/
#define RTL8366RB_PVCR_BASE 0x0063
#define RTL8366RB_PVCR_PORT_SHIFT 4
#define RTL8366RB_PVCR_PORT_PERREG (16 / RTL8366RB_PVCR_PORT_SHIFT)
#define RTL8366RB_PVCR_PORT_MASK 0x000f
#define RTL8366RB_PVCR_REG(_port) \
(RTL8366RB_PVCR_BASE + _port / (RTL8366RB_PVCR_PORT_PERREG))
#define RTL8366RB_PVCR_VAL(_port, _pvlan) \
((_pvlan & RTL8366RB_PVCR_PORT_MASK) << \
((_port % RTL8366RB_PVCR_PORT_PERREG) * RTL8366RB_PVCR_PORT_SHIFT))
#define RTL8366RB_PVCR_GET(_port, _val) \
(((_val) >> ((_port % RTL8366RB_PVCR_PORT_PERREG) * RTL8366RB_PVCR_PORT_SHIFT)) & RTL8366RB_PVCR_PORT_MASK)
/* Reset Control */
#define RTL8366RB_RCR 0x0100
#define RTL8366RB_RCR_HARD_RESET 0x0001
#define RTL8366RB_RCR_SOFT_RESET 0x0002
/* Chip Version Control: CHIP_VER[3:0] */
#define RTL8366RB_CVCR 0x050A
/* Chip Identifier */
#define RTL8366RB_CIR 0x0509
#define RTL8366RB_CIR_ID8366RB 0x5937
/* VLAN Ingress Control 2: [5:0] */
#define RTL8366RB_VIC2R 0x037f
/* MIB registers */
#define RTL8366RB_MCNT_BASE 0x1000
#define RTL8366RB_MCTLR 0x13f0
#define RTL8366RB_MCTLR_BUSY 0x0001
#define RTL8366RB_MCTLR_RESET 0x0002
#define RTL8366RB_MCTLR_RESET_PORT_MASK 0x00fc
#define RTL8366RB_MCTLR_RESET_ALL 0x0800
#define RTL8366RB_MCNT(_port, _r) \
(RTL8366RB_MCNT_BASE + 0x50 * (_port) + (_r))
#define RTL8366RB_MCTLR_RESET_PORT(_p) \
(1 << ((_p) + 2))
/* PHY Access Control */
#define RTL8366RB_PACR 0x8000
#define RTL8366RB_PACR_WRITE 0x0000
#define RTL8366RB_PACR_READ 0x0001
/* PHY Access Data */
#define RTL8366RB_PADR 0x8002
#define RTL8366RB_PHYREG(phy, page, reg) \
(RTL8366RB_PACR | (1 << (((phy) & 0x1f) + 9)) | (((page) & 0xf) << 5) | ((reg) & 0x1f))
/* general characteristics of the chip */
#define RTL8366RB_NUM_PORTS 6
#define RTL8366RB_NUM_PHYS (RTL8366RB_NUM_PORTS-1)
#define RTL8366RB_NUM_VLANS 16
#define RTL8366RB_NUM_PHY_REG 32
#endif
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