mirror of https://github.com/hak5/openwrt.git
2062 lines
47 KiB
C
2062 lines
47 KiB
C
/*
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* ar8216.c: AR8216 switch driver
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*
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* Copyright (C) 2009 Felix Fietkau <nbd@openwrt.org>
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* Copyright (C) 2011-2012 Gabor Juhos <juhosg@openwrt.org>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <linux/if.h>
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/list.h>
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#include <linux/if_ether.h>
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#include <linux/skbuff.h>
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#include <linux/netdevice.h>
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#include <linux/netlink.h>
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#include <linux/bitops.h>
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#include <net/genetlink.h>
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#include <linux/switch.h>
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#include <linux/delay.h>
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#include <linux/phy.h>
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#include <linux/netdevice.h>
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#include <linux/etherdevice.h>
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#include <linux/lockdep.h>
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#include <linux/ar8216_platform.h>
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#include <linux/workqueue.h>
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#include <linux/version.h>
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#include "ar8216.h"
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extern const struct ar8xxx_chip ar8327_chip;
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extern const struct ar8xxx_chip ar8337_chip;
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#define AR8XXX_MIB_WORK_DELAY 2000 /* msecs */
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#define MIB_DESC(_s , _o, _n) \
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{ \
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.size = (_s), \
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.offset = (_o), \
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.name = (_n), \
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}
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static const struct ar8xxx_mib_desc ar8216_mibs[] = {
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MIB_DESC(1, AR8216_STATS_RXBROAD, "RxBroad"),
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MIB_DESC(1, AR8216_STATS_RXPAUSE, "RxPause"),
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MIB_DESC(1, AR8216_STATS_RXMULTI, "RxMulti"),
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MIB_DESC(1, AR8216_STATS_RXFCSERR, "RxFcsErr"),
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MIB_DESC(1, AR8216_STATS_RXALIGNERR, "RxAlignErr"),
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MIB_DESC(1, AR8216_STATS_RXRUNT, "RxRunt"),
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MIB_DESC(1, AR8216_STATS_RXFRAGMENT, "RxFragment"),
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MIB_DESC(1, AR8216_STATS_RX64BYTE, "Rx64Byte"),
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MIB_DESC(1, AR8216_STATS_RX128BYTE, "Rx128Byte"),
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MIB_DESC(1, AR8216_STATS_RX256BYTE, "Rx256Byte"),
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MIB_DESC(1, AR8216_STATS_RX512BYTE, "Rx512Byte"),
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MIB_DESC(1, AR8216_STATS_RX1024BYTE, "Rx1024Byte"),
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MIB_DESC(1, AR8216_STATS_RXMAXBYTE, "RxMaxByte"),
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MIB_DESC(1, AR8216_STATS_RXTOOLONG, "RxTooLong"),
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MIB_DESC(2, AR8216_STATS_RXGOODBYTE, "RxGoodByte"),
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MIB_DESC(2, AR8216_STATS_RXBADBYTE, "RxBadByte"),
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MIB_DESC(1, AR8216_STATS_RXOVERFLOW, "RxOverFlow"),
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MIB_DESC(1, AR8216_STATS_FILTERED, "Filtered"),
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MIB_DESC(1, AR8216_STATS_TXBROAD, "TxBroad"),
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MIB_DESC(1, AR8216_STATS_TXPAUSE, "TxPause"),
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MIB_DESC(1, AR8216_STATS_TXMULTI, "TxMulti"),
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MIB_DESC(1, AR8216_STATS_TXUNDERRUN, "TxUnderRun"),
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MIB_DESC(1, AR8216_STATS_TX64BYTE, "Tx64Byte"),
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MIB_DESC(1, AR8216_STATS_TX128BYTE, "Tx128Byte"),
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MIB_DESC(1, AR8216_STATS_TX256BYTE, "Tx256Byte"),
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MIB_DESC(1, AR8216_STATS_TX512BYTE, "Tx512Byte"),
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MIB_DESC(1, AR8216_STATS_TX1024BYTE, "Tx1024Byte"),
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MIB_DESC(1, AR8216_STATS_TXMAXBYTE, "TxMaxByte"),
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MIB_DESC(1, AR8216_STATS_TXOVERSIZE, "TxOverSize"),
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MIB_DESC(2, AR8216_STATS_TXBYTE, "TxByte"),
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MIB_DESC(1, AR8216_STATS_TXCOLLISION, "TxCollision"),
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MIB_DESC(1, AR8216_STATS_TXABORTCOL, "TxAbortCol"),
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MIB_DESC(1, AR8216_STATS_TXMULTICOL, "TxMultiCol"),
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MIB_DESC(1, AR8216_STATS_TXSINGLECOL, "TxSingleCol"),
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MIB_DESC(1, AR8216_STATS_TXEXCDEFER, "TxExcDefer"),
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MIB_DESC(1, AR8216_STATS_TXDEFER, "TxDefer"),
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MIB_DESC(1, AR8216_STATS_TXLATECOL, "TxLateCol"),
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};
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const struct ar8xxx_mib_desc ar8236_mibs[39] = {
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MIB_DESC(1, AR8236_STATS_RXBROAD, "RxBroad"),
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MIB_DESC(1, AR8236_STATS_RXPAUSE, "RxPause"),
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MIB_DESC(1, AR8236_STATS_RXMULTI, "RxMulti"),
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MIB_DESC(1, AR8236_STATS_RXFCSERR, "RxFcsErr"),
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MIB_DESC(1, AR8236_STATS_RXALIGNERR, "RxAlignErr"),
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MIB_DESC(1, AR8236_STATS_RXRUNT, "RxRunt"),
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MIB_DESC(1, AR8236_STATS_RXFRAGMENT, "RxFragment"),
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MIB_DESC(1, AR8236_STATS_RX64BYTE, "Rx64Byte"),
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MIB_DESC(1, AR8236_STATS_RX128BYTE, "Rx128Byte"),
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MIB_DESC(1, AR8236_STATS_RX256BYTE, "Rx256Byte"),
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MIB_DESC(1, AR8236_STATS_RX512BYTE, "Rx512Byte"),
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MIB_DESC(1, AR8236_STATS_RX1024BYTE, "Rx1024Byte"),
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MIB_DESC(1, AR8236_STATS_RX1518BYTE, "Rx1518Byte"),
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MIB_DESC(1, AR8236_STATS_RXMAXBYTE, "RxMaxByte"),
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MIB_DESC(1, AR8236_STATS_RXTOOLONG, "RxTooLong"),
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MIB_DESC(2, AR8236_STATS_RXGOODBYTE, "RxGoodByte"),
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MIB_DESC(2, AR8236_STATS_RXBADBYTE, "RxBadByte"),
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MIB_DESC(1, AR8236_STATS_RXOVERFLOW, "RxOverFlow"),
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MIB_DESC(1, AR8236_STATS_FILTERED, "Filtered"),
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MIB_DESC(1, AR8236_STATS_TXBROAD, "TxBroad"),
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MIB_DESC(1, AR8236_STATS_TXPAUSE, "TxPause"),
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MIB_DESC(1, AR8236_STATS_TXMULTI, "TxMulti"),
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MIB_DESC(1, AR8236_STATS_TXUNDERRUN, "TxUnderRun"),
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MIB_DESC(1, AR8236_STATS_TX64BYTE, "Tx64Byte"),
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MIB_DESC(1, AR8236_STATS_TX128BYTE, "Tx128Byte"),
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MIB_DESC(1, AR8236_STATS_TX256BYTE, "Tx256Byte"),
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MIB_DESC(1, AR8236_STATS_TX512BYTE, "Tx512Byte"),
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MIB_DESC(1, AR8236_STATS_TX1024BYTE, "Tx1024Byte"),
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MIB_DESC(1, AR8236_STATS_TX1518BYTE, "Tx1518Byte"),
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MIB_DESC(1, AR8236_STATS_TXMAXBYTE, "TxMaxByte"),
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MIB_DESC(1, AR8236_STATS_TXOVERSIZE, "TxOverSize"),
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MIB_DESC(2, AR8236_STATS_TXBYTE, "TxByte"),
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MIB_DESC(1, AR8236_STATS_TXCOLLISION, "TxCollision"),
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MIB_DESC(1, AR8236_STATS_TXABORTCOL, "TxAbortCol"),
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MIB_DESC(1, AR8236_STATS_TXMULTICOL, "TxMultiCol"),
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MIB_DESC(1, AR8236_STATS_TXSINGLECOL, "TxSingleCol"),
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MIB_DESC(1, AR8236_STATS_TXEXCDEFER, "TxExcDefer"),
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MIB_DESC(1, AR8236_STATS_TXDEFER, "TxDefer"),
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MIB_DESC(1, AR8236_STATS_TXLATECOL, "TxLateCol"),
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};
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static DEFINE_MUTEX(ar8xxx_dev_list_lock);
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static LIST_HEAD(ar8xxx_dev_list);
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/* inspired by phy_poll_reset in drivers/net/phy/phy_device.c */
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static int
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ar8xxx_phy_poll_reset(struct mii_bus *bus)
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{
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unsigned int sleep_msecs = 20;
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int ret, elapsed, i;
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for (elapsed = sleep_msecs; elapsed <= 600;
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elapsed += sleep_msecs) {
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msleep(sleep_msecs);
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for (i = 0; i < AR8XXX_NUM_PHYS; i++) {
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ret = mdiobus_read(bus, i, MII_BMCR);
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if (ret < 0)
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return ret;
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if (ret & BMCR_RESET)
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break;
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if (i == AR8XXX_NUM_PHYS - 1) {
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usleep_range(1000, 2000);
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return 0;
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}
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}
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}
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return -ETIMEDOUT;
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}
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static int
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ar8xxx_phy_check_aneg(struct phy_device *phydev)
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{
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int ret;
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if (phydev->autoneg != AUTONEG_ENABLE)
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return 0;
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/*
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* BMCR_ANENABLE might have been cleared
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* by phy_init_hw in certain kernel versions
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* therefore check for it
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*/
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ret = phy_read(phydev, MII_BMCR);
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if (ret < 0)
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return ret;
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if (ret & BMCR_ANENABLE)
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return 0;
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dev_info(&phydev->dev, "ANEG disabled, re-enabling ...\n");
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ret |= BMCR_ANENABLE | BMCR_ANRESTART;
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return phy_write(phydev, MII_BMCR, ret);
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}
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void
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ar8xxx_phy_init(struct ar8xxx_priv *priv)
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{
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int i;
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struct mii_bus *bus;
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bus = priv->mii_bus;
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for (i = 0; i < AR8XXX_NUM_PHYS; i++) {
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if (priv->chip->phy_fixup)
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priv->chip->phy_fixup(priv, i);
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/* initialize the port itself */
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mdiobus_write(bus, i, MII_ADVERTISE,
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ADVERTISE_ALL | ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM);
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if (ar8xxx_has_gige(priv))
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mdiobus_write(bus, i, MII_CTRL1000, ADVERTISE_1000FULL);
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mdiobus_write(bus, i, MII_BMCR, BMCR_RESET | BMCR_ANENABLE);
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}
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ar8xxx_phy_poll_reset(bus);
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}
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u32
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ar8xxx_mii_read32(struct ar8xxx_priv *priv, int phy_id, int regnum)
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{
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struct mii_bus *bus = priv->mii_bus;
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u16 lo, hi;
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lo = bus->read(bus, phy_id, regnum);
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hi = bus->read(bus, phy_id, regnum + 1);
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return (hi << 16) | lo;
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}
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void
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ar8xxx_mii_write32(struct ar8xxx_priv *priv, int phy_id, int regnum, u32 val)
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{
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struct mii_bus *bus = priv->mii_bus;
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u16 lo, hi;
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lo = val & 0xffff;
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hi = (u16) (val >> 16);
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if (priv->chip->mii_lo_first)
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{
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bus->write(bus, phy_id, regnum, lo);
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bus->write(bus, phy_id, regnum + 1, hi);
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} else {
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bus->write(bus, phy_id, regnum + 1, hi);
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bus->write(bus, phy_id, regnum, lo);
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}
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}
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u32
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ar8xxx_read(struct ar8xxx_priv *priv, int reg)
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{
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struct mii_bus *bus = priv->mii_bus;
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u16 r1, r2, page;
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u32 val;
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split_addr((u32) reg, &r1, &r2, &page);
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mutex_lock(&bus->mdio_lock);
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bus->write(bus, 0x18, 0, page);
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wait_for_page_switch();
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val = ar8xxx_mii_read32(priv, 0x10 | r2, r1);
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mutex_unlock(&bus->mdio_lock);
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return val;
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}
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void
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ar8xxx_write(struct ar8xxx_priv *priv, int reg, u32 val)
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{
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struct mii_bus *bus = priv->mii_bus;
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u16 r1, r2, page;
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split_addr((u32) reg, &r1, &r2, &page);
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mutex_lock(&bus->mdio_lock);
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bus->write(bus, 0x18, 0, page);
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wait_for_page_switch();
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ar8xxx_mii_write32(priv, 0x10 | r2, r1, val);
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mutex_unlock(&bus->mdio_lock);
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}
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u32
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ar8xxx_rmw(struct ar8xxx_priv *priv, int reg, u32 mask, u32 val)
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{
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struct mii_bus *bus = priv->mii_bus;
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u16 r1, r2, page;
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u32 ret;
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split_addr((u32) reg, &r1, &r2, &page);
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mutex_lock(&bus->mdio_lock);
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bus->write(bus, 0x18, 0, page);
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wait_for_page_switch();
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ret = ar8xxx_mii_read32(priv, 0x10 | r2, r1);
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ret &= ~mask;
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ret |= val;
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ar8xxx_mii_write32(priv, 0x10 | r2, r1, ret);
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mutex_unlock(&bus->mdio_lock);
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return ret;
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}
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void
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ar8xxx_phy_dbg_write(struct ar8xxx_priv *priv, int phy_addr,
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u16 dbg_addr, u16 dbg_data)
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{
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struct mii_bus *bus = priv->mii_bus;
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mutex_lock(&bus->mdio_lock);
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bus->write(bus, phy_addr, MII_ATH_DBG_ADDR, dbg_addr);
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bus->write(bus, phy_addr, MII_ATH_DBG_DATA, dbg_data);
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mutex_unlock(&bus->mdio_lock);
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}
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void
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ar8xxx_phy_mmd_write(struct ar8xxx_priv *priv, int phy_addr, u16 addr, u16 data)
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{
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struct mii_bus *bus = priv->mii_bus;
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mutex_lock(&bus->mdio_lock);
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bus->write(bus, phy_addr, MII_ATH_MMD_ADDR, addr);
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bus->write(bus, phy_addr, MII_ATH_MMD_DATA, data);
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mutex_unlock(&bus->mdio_lock);
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}
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u16
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ar8xxx_phy_mmd_read(struct ar8xxx_priv *priv, int phy_addr, u16 addr)
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{
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struct mii_bus *bus = priv->mii_bus;
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u16 data;
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mutex_lock(&bus->mdio_lock);
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bus->write(bus, phy_addr, MII_ATH_MMD_ADDR, addr);
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data = bus->read(bus, phy_addr, MII_ATH_MMD_DATA);
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mutex_unlock(&bus->mdio_lock);
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return data;
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}
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static int
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ar8xxx_reg_wait(struct ar8xxx_priv *priv, u32 reg, u32 mask, u32 val,
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unsigned timeout)
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{
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int i;
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for (i = 0; i < timeout; i++) {
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u32 t;
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t = ar8xxx_read(priv, reg);
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if ((t & mask) == val)
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return 0;
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usleep_range(1000, 2000);
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}
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return -ETIMEDOUT;
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}
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static int
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ar8xxx_mib_op(struct ar8xxx_priv *priv, u32 op)
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{
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unsigned mib_func = priv->chip->mib_func;
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int ret;
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lockdep_assert_held(&priv->mib_lock);
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/* Capture the hardware statistics for all ports */
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ar8xxx_rmw(priv, mib_func, AR8216_MIB_FUNC, (op << AR8216_MIB_FUNC_S));
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/* Wait for the capturing to complete. */
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ret = ar8xxx_reg_wait(priv, mib_func, AR8216_MIB_BUSY, 0, 10);
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if (ret)
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goto out;
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ret = 0;
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out:
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return ret;
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}
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static int
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ar8xxx_mib_capture(struct ar8xxx_priv *priv)
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{
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return ar8xxx_mib_op(priv, AR8216_MIB_FUNC_CAPTURE);
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}
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static int
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ar8xxx_mib_flush(struct ar8xxx_priv *priv)
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{
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return ar8xxx_mib_op(priv, AR8216_MIB_FUNC_FLUSH);
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}
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static void
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ar8xxx_mib_fetch_port_stat(struct ar8xxx_priv *priv, int port, bool flush)
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{
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unsigned int base;
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u64 *mib_stats;
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int i;
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WARN_ON(port >= priv->dev.ports);
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lockdep_assert_held(&priv->mib_lock);
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base = priv->chip->reg_port_stats_start +
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priv->chip->reg_port_stats_length * port;
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mib_stats = &priv->mib_stats[port * priv->chip->num_mibs];
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for (i = 0; i < priv->chip->num_mibs; i++) {
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const struct ar8xxx_mib_desc *mib;
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u64 t;
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mib = &priv->chip->mib_decs[i];
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t = ar8xxx_read(priv, base + mib->offset);
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if (mib->size == 2) {
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u64 hi;
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hi = ar8xxx_read(priv, base + mib->offset + 4);
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t |= hi << 32;
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}
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if (flush)
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mib_stats[i] = 0;
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else
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mib_stats[i] += t;
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}
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}
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static void
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ar8216_read_port_link(struct ar8xxx_priv *priv, int port,
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struct switch_port_link *link)
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{
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u32 status;
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u32 speed;
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memset(link, '\0', sizeof(*link));
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status = priv->chip->read_port_status(priv, port);
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link->aneg = !!(status & AR8216_PORT_STATUS_LINK_AUTO);
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if (link->aneg) {
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link->link = !!(status & AR8216_PORT_STATUS_LINK_UP);
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} else {
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link->link = true;
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|
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if (priv->get_port_link) {
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int err;
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|
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err = priv->get_port_link(port);
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if (err >= 0)
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link->link = !!err;
|
|
}
|
|
}
|
|
|
|
if (!link->link)
|
|
return;
|
|
|
|
link->duplex = !!(status & AR8216_PORT_STATUS_DUPLEX);
|
|
link->tx_flow = !!(status & AR8216_PORT_STATUS_TXFLOW);
|
|
link->rx_flow = !!(status & AR8216_PORT_STATUS_RXFLOW);
|
|
|
|
if (link->aneg && link->duplex && priv->chip->read_port_eee_status)
|
|
link->eee = priv->chip->read_port_eee_status(priv, port);
|
|
|
|
speed = (status & AR8216_PORT_STATUS_SPEED) >>
|
|
AR8216_PORT_STATUS_SPEED_S;
|
|
|
|
switch (speed) {
|
|
case AR8216_PORT_SPEED_10M:
|
|
link->speed = SWITCH_PORT_SPEED_10;
|
|
break;
|
|
case AR8216_PORT_SPEED_100M:
|
|
link->speed = SWITCH_PORT_SPEED_100;
|
|
break;
|
|
case AR8216_PORT_SPEED_1000M:
|
|
link->speed = SWITCH_PORT_SPEED_1000;
|
|
break;
|
|
default:
|
|
link->speed = SWITCH_PORT_SPEED_UNKNOWN;
|
|
break;
|
|
}
|
|
}
|
|
|
|
static struct sk_buff *
|
|
ar8216_mangle_tx(struct net_device *dev, struct sk_buff *skb)
|
|
{
|
|
struct ar8xxx_priv *priv = dev->phy_ptr;
|
|
unsigned char *buf;
|
|
|
|
if (unlikely(!priv))
|
|
goto error;
|
|
|
|
if (!priv->vlan)
|
|
goto send;
|
|
|
|
if (unlikely(skb_headroom(skb) < 2)) {
|
|
if (pskb_expand_head(skb, 2, 0, GFP_ATOMIC) < 0)
|
|
goto error;
|
|
}
|
|
|
|
buf = skb_push(skb, 2);
|
|
buf[0] = 0x10;
|
|
buf[1] = 0x80;
|
|
|
|
send:
|
|
return skb;
|
|
|
|
error:
|
|
dev_kfree_skb_any(skb);
|
|
return NULL;
|
|
}
|
|
|
|
static void
|
|
ar8216_mangle_rx(struct net_device *dev, struct sk_buff *skb)
|
|
{
|
|
struct ar8xxx_priv *priv;
|
|
unsigned char *buf;
|
|
int port, vlan;
|
|
|
|
priv = dev->phy_ptr;
|
|
if (!priv)
|
|
return;
|
|
|
|
/* don't strip the header if vlan mode is disabled */
|
|
if (!priv->vlan)
|
|
return;
|
|
|
|
/* strip header, get vlan id */
|
|
buf = skb->data;
|
|
skb_pull(skb, 2);
|
|
|
|
/* check for vlan header presence */
|
|
if ((buf[12 + 2] != 0x81) || (buf[13 + 2] != 0x00))
|
|
return;
|
|
|
|
port = buf[0] & 0xf;
|
|
|
|
/* no need to fix up packets coming from a tagged source */
|
|
if (priv->vlan_tagged & (1 << port))
|
|
return;
|
|
|
|
/* lookup port vid from local table, the switch passes an invalid vlan id */
|
|
vlan = priv->vlan_id[priv->pvid[port]];
|
|
|
|
buf[14 + 2] &= 0xf0;
|
|
buf[14 + 2] |= vlan >> 8;
|
|
buf[15 + 2] = vlan & 0xff;
|
|
}
|
|
|
|
int
|
|
ar8216_wait_bit(struct ar8xxx_priv *priv, int reg, u32 mask, u32 val)
|
|
{
|
|
int timeout = 20;
|
|
u32 t = 0;
|
|
|
|
while (1) {
|
|
t = ar8xxx_read(priv, reg);
|
|
if ((t & mask) == val)
|
|
return 0;
|
|
|
|
if (timeout-- <= 0)
|
|
break;
|
|
|
|
udelay(10);
|
|
}
|
|
|
|
pr_err("ar8216: timeout on reg %08x: %08x & %08x != %08x\n",
|
|
(unsigned int) reg, t, mask, val);
|
|
return -ETIMEDOUT;
|
|
}
|
|
|
|
static void
|
|
ar8216_vtu_op(struct ar8xxx_priv *priv, u32 op, u32 val)
|
|
{
|
|
if (ar8216_wait_bit(priv, AR8216_REG_VTU, AR8216_VTU_ACTIVE, 0))
|
|
return;
|
|
if ((op & AR8216_VTU_OP) == AR8216_VTU_OP_LOAD) {
|
|
val &= AR8216_VTUDATA_MEMBER;
|
|
val |= AR8216_VTUDATA_VALID;
|
|
ar8xxx_write(priv, AR8216_REG_VTU_DATA, val);
|
|
}
|
|
op |= AR8216_VTU_ACTIVE;
|
|
ar8xxx_write(priv, AR8216_REG_VTU, op);
|
|
}
|
|
|
|
static void
|
|
ar8216_vtu_flush(struct ar8xxx_priv *priv)
|
|
{
|
|
ar8216_vtu_op(priv, AR8216_VTU_OP_FLUSH, 0);
|
|
}
|
|
|
|
static void
|
|
ar8216_vtu_load_vlan(struct ar8xxx_priv *priv, u32 vid, u32 port_mask)
|
|
{
|
|
u32 op;
|
|
|
|
op = AR8216_VTU_OP_LOAD | (vid << AR8216_VTU_VID_S);
|
|
ar8216_vtu_op(priv, op, port_mask);
|
|
}
|
|
|
|
static int
|
|
ar8216_atu_flush(struct ar8xxx_priv *priv)
|
|
{
|
|
int ret;
|
|
|
|
ret = ar8216_wait_bit(priv, AR8216_REG_ATU, AR8216_ATU_ACTIVE, 0);
|
|
if (!ret)
|
|
ar8xxx_write(priv, AR8216_REG_ATU, AR8216_ATU_OP_FLUSH |
|
|
AR8216_ATU_ACTIVE);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static u32
|
|
ar8216_read_port_status(struct ar8xxx_priv *priv, int port)
|
|
{
|
|
return ar8xxx_read(priv, AR8216_REG_PORT_STATUS(port));
|
|
}
|
|
|
|
static void
|
|
ar8216_setup_port(struct ar8xxx_priv *priv, int port, u32 members)
|
|
{
|
|
u32 header;
|
|
u32 egress, ingress;
|
|
u32 pvid;
|
|
|
|
if (priv->vlan) {
|
|
pvid = priv->vlan_id[priv->pvid[port]];
|
|
if (priv->vlan_tagged & (1 << port))
|
|
egress = AR8216_OUT_ADD_VLAN;
|
|
else
|
|
egress = AR8216_OUT_STRIP_VLAN;
|
|
ingress = AR8216_IN_SECURE;
|
|
} else {
|
|
pvid = port;
|
|
egress = AR8216_OUT_KEEP;
|
|
ingress = AR8216_IN_PORT_ONLY;
|
|
}
|
|
|
|
if (chip_is_ar8216(priv) && priv->vlan && port == AR8216_PORT_CPU)
|
|
header = AR8216_PORT_CTRL_HEADER;
|
|
else
|
|
header = 0;
|
|
|
|
ar8xxx_rmw(priv, AR8216_REG_PORT_CTRL(port),
|
|
AR8216_PORT_CTRL_LEARN | AR8216_PORT_CTRL_VLAN_MODE |
|
|
AR8216_PORT_CTRL_SINGLE_VLAN | AR8216_PORT_CTRL_STATE |
|
|
AR8216_PORT_CTRL_HEADER | AR8216_PORT_CTRL_LEARN_LOCK,
|
|
AR8216_PORT_CTRL_LEARN | header |
|
|
(egress << AR8216_PORT_CTRL_VLAN_MODE_S) |
|
|
(AR8216_PORT_STATE_FORWARD << AR8216_PORT_CTRL_STATE_S));
|
|
|
|
ar8xxx_rmw(priv, AR8216_REG_PORT_VLAN(port),
|
|
AR8216_PORT_VLAN_DEST_PORTS | AR8216_PORT_VLAN_MODE |
|
|
AR8216_PORT_VLAN_DEFAULT_ID,
|
|
(members << AR8216_PORT_VLAN_DEST_PORTS_S) |
|
|
(ingress << AR8216_PORT_VLAN_MODE_S) |
|
|
(pvid << AR8216_PORT_VLAN_DEFAULT_ID_S));
|
|
}
|
|
|
|
static int
|
|
ar8216_hw_init(struct ar8xxx_priv *priv)
|
|
{
|
|
if (priv->initialized)
|
|
return 0;
|
|
|
|
ar8xxx_phy_init(priv);
|
|
|
|
priv->initialized = true;
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
ar8216_init_globals(struct ar8xxx_priv *priv)
|
|
{
|
|
/* standard atheros magic */
|
|
ar8xxx_write(priv, 0x38, 0xc000050e);
|
|
|
|
ar8xxx_rmw(priv, AR8216_REG_GLOBAL_CTRL,
|
|
AR8216_GCTRL_MTU, 1518 + 8 + 2);
|
|
}
|
|
|
|
static void
|
|
ar8216_init_port(struct ar8xxx_priv *priv, int port)
|
|
{
|
|
/* Enable port learning and tx */
|
|
ar8xxx_write(priv, AR8216_REG_PORT_CTRL(port),
|
|
AR8216_PORT_CTRL_LEARN |
|
|
(4 << AR8216_PORT_CTRL_STATE_S));
|
|
|
|
ar8xxx_write(priv, AR8216_REG_PORT_VLAN(port), 0);
|
|
|
|
if (port == AR8216_PORT_CPU) {
|
|
ar8xxx_write(priv, AR8216_REG_PORT_STATUS(port),
|
|
AR8216_PORT_STATUS_LINK_UP |
|
|
(ar8xxx_has_gige(priv) ?
|
|
AR8216_PORT_SPEED_1000M : AR8216_PORT_SPEED_100M) |
|
|
AR8216_PORT_STATUS_TXMAC |
|
|
AR8216_PORT_STATUS_RXMAC |
|
|
(chip_is_ar8316(priv) ? AR8216_PORT_STATUS_RXFLOW : 0) |
|
|
(chip_is_ar8316(priv) ? AR8216_PORT_STATUS_TXFLOW : 0) |
|
|
AR8216_PORT_STATUS_DUPLEX);
|
|
} else {
|
|
ar8xxx_write(priv, AR8216_REG_PORT_STATUS(port),
|
|
AR8216_PORT_STATUS_LINK_AUTO);
|
|
}
|
|
}
|
|
|
|
static void
|
|
ar8236_setup_port(struct ar8xxx_priv *priv, int port, u32 members)
|
|
{
|
|
u32 egress, ingress;
|
|
u32 pvid;
|
|
|
|
if (priv->vlan) {
|
|
pvid = priv->vlan_id[priv->pvid[port]];
|
|
if (priv->vlan_tagged & (1 << port))
|
|
egress = AR8216_OUT_ADD_VLAN;
|
|
else
|
|
egress = AR8216_OUT_STRIP_VLAN;
|
|
ingress = AR8216_IN_SECURE;
|
|
} else {
|
|
pvid = port;
|
|
egress = AR8216_OUT_KEEP;
|
|
ingress = AR8216_IN_PORT_ONLY;
|
|
}
|
|
|
|
ar8xxx_rmw(priv, AR8216_REG_PORT_CTRL(port),
|
|
AR8216_PORT_CTRL_LEARN | AR8216_PORT_CTRL_VLAN_MODE |
|
|
AR8216_PORT_CTRL_SINGLE_VLAN | AR8216_PORT_CTRL_STATE |
|
|
AR8216_PORT_CTRL_HEADER | AR8216_PORT_CTRL_LEARN_LOCK,
|
|
AR8216_PORT_CTRL_LEARN |
|
|
(egress << AR8216_PORT_CTRL_VLAN_MODE_S) |
|
|
(AR8216_PORT_STATE_FORWARD << AR8216_PORT_CTRL_STATE_S));
|
|
|
|
ar8xxx_rmw(priv, AR8236_REG_PORT_VLAN(port),
|
|
AR8236_PORT_VLAN_DEFAULT_ID,
|
|
(pvid << AR8236_PORT_VLAN_DEFAULT_ID_S));
|
|
|
|
ar8xxx_rmw(priv, AR8236_REG_PORT_VLAN2(port),
|
|
AR8236_PORT_VLAN2_VLAN_MODE |
|
|
AR8236_PORT_VLAN2_MEMBER,
|
|
(ingress << AR8236_PORT_VLAN2_VLAN_MODE_S) |
|
|
(members << AR8236_PORT_VLAN2_MEMBER_S));
|
|
}
|
|
|
|
static void
|
|
ar8236_init_globals(struct ar8xxx_priv *priv)
|
|
{
|
|
/* enable jumbo frames */
|
|
ar8xxx_rmw(priv, AR8216_REG_GLOBAL_CTRL,
|
|
AR8316_GCTRL_MTU, 9018 + 8 + 2);
|
|
|
|
/* enable cpu port to receive arp frames */
|
|
ar8xxx_reg_set(priv, AR8216_REG_ATU_CTRL,
|
|
AR8236_ATU_CTRL_RES);
|
|
|
|
/* enable cpu port to receive multicast and broadcast frames */
|
|
ar8xxx_reg_set(priv, AR8216_REG_FLOOD_MASK,
|
|
AR8236_FM_CPU_BROADCAST_EN | AR8236_FM_CPU_BCAST_FWD_EN);
|
|
|
|
/* Enable MIB counters */
|
|
ar8xxx_rmw(priv, AR8216_REG_MIB_FUNC, AR8216_MIB_FUNC | AR8236_MIB_EN,
|
|
(AR8216_MIB_FUNC_NO_OP << AR8216_MIB_FUNC_S) |
|
|
AR8236_MIB_EN);
|
|
}
|
|
|
|
static int
|
|
ar8316_hw_init(struct ar8xxx_priv *priv)
|
|
{
|
|
u32 val, newval;
|
|
|
|
val = ar8xxx_read(priv, AR8316_REG_POSTRIP);
|
|
|
|
if (priv->phy->interface == PHY_INTERFACE_MODE_RGMII) {
|
|
if (priv->port4_phy) {
|
|
/* value taken from Ubiquiti RouterStation Pro */
|
|
newval = 0x81461bea;
|
|
pr_info("ar8316: Using port 4 as PHY\n");
|
|
} else {
|
|
newval = 0x01261be2;
|
|
pr_info("ar8316: Using port 4 as switch port\n");
|
|
}
|
|
} else if (priv->phy->interface == PHY_INTERFACE_MODE_GMII) {
|
|
/* value taken from AVM Fritz!Box 7390 sources */
|
|
newval = 0x010e5b71;
|
|
} else {
|
|
/* no known value for phy interface */
|
|
pr_err("ar8316: unsupported mii mode: %d.\n",
|
|
priv->phy->interface);
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (val == newval)
|
|
goto out;
|
|
|
|
ar8xxx_write(priv, AR8316_REG_POSTRIP, newval);
|
|
|
|
if (priv->port4_phy &&
|
|
priv->phy->interface == PHY_INTERFACE_MODE_RGMII) {
|
|
/* work around for phy4 rgmii mode */
|
|
ar8xxx_phy_dbg_write(priv, 4, 0x12, 0x480c);
|
|
/* rx delay */
|
|
ar8xxx_phy_dbg_write(priv, 4, 0x0, 0x824e);
|
|
/* tx delay */
|
|
ar8xxx_phy_dbg_write(priv, 4, 0x5, 0x3d47);
|
|
msleep(1000);
|
|
}
|
|
|
|
ar8xxx_phy_init(priv);
|
|
|
|
out:
|
|
priv->initialized = true;
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
ar8316_init_globals(struct ar8xxx_priv *priv)
|
|
{
|
|
/* standard atheros magic */
|
|
ar8xxx_write(priv, 0x38, 0xc000050e);
|
|
|
|
/* enable cpu port to receive multicast and broadcast frames */
|
|
ar8xxx_write(priv, AR8216_REG_FLOOD_MASK, 0x003f003f);
|
|
|
|
/* enable jumbo frames */
|
|
ar8xxx_rmw(priv, AR8216_REG_GLOBAL_CTRL,
|
|
AR8316_GCTRL_MTU, 9018 + 8 + 2);
|
|
|
|
/* Enable MIB counters */
|
|
ar8xxx_rmw(priv, AR8216_REG_MIB_FUNC, AR8216_MIB_FUNC | AR8236_MIB_EN,
|
|
(AR8216_MIB_FUNC_NO_OP << AR8216_MIB_FUNC_S) |
|
|
AR8236_MIB_EN);
|
|
}
|
|
|
|
int
|
|
ar8xxx_sw_set_vlan(struct switch_dev *dev, const struct switch_attr *attr,
|
|
struct switch_val *val)
|
|
{
|
|
struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev);
|
|
priv->vlan = !!val->value.i;
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
ar8xxx_sw_get_vlan(struct switch_dev *dev, const struct switch_attr *attr,
|
|
struct switch_val *val)
|
|
{
|
|
struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev);
|
|
val->value.i = priv->vlan;
|
|
return 0;
|
|
}
|
|
|
|
|
|
int
|
|
ar8xxx_sw_set_pvid(struct switch_dev *dev, int port, int vlan)
|
|
{
|
|
struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev);
|
|
|
|
/* make sure no invalid PVIDs get set */
|
|
|
|
if (vlan >= dev->vlans)
|
|
return -EINVAL;
|
|
|
|
priv->pvid[port] = vlan;
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
ar8xxx_sw_get_pvid(struct switch_dev *dev, int port, int *vlan)
|
|
{
|
|
struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev);
|
|
*vlan = priv->pvid[port];
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
ar8xxx_sw_set_vid(struct switch_dev *dev, const struct switch_attr *attr,
|
|
struct switch_val *val)
|
|
{
|
|
struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev);
|
|
priv->vlan_id[val->port_vlan] = val->value.i;
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
ar8xxx_sw_get_vid(struct switch_dev *dev, const struct switch_attr *attr,
|
|
struct switch_val *val)
|
|
{
|
|
struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev);
|
|
val->value.i = priv->vlan_id[val->port_vlan];
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
ar8xxx_sw_get_port_link(struct switch_dev *dev, int port,
|
|
struct switch_port_link *link)
|
|
{
|
|
struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev);
|
|
|
|
ar8216_read_port_link(priv, port, link);
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
ar8xxx_sw_get_ports(struct switch_dev *dev, struct switch_val *val)
|
|
{
|
|
struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev);
|
|
u8 ports = priv->vlan_table[val->port_vlan];
|
|
int i;
|
|
|
|
val->len = 0;
|
|
for (i = 0; i < dev->ports; i++) {
|
|
struct switch_port *p;
|
|
|
|
if (!(ports & (1 << i)))
|
|
continue;
|
|
|
|
p = &val->value.ports[val->len++];
|
|
p->id = i;
|
|
if (priv->vlan_tagged & (1 << i))
|
|
p->flags = (1 << SWITCH_PORT_FLAG_TAGGED);
|
|
else
|
|
p->flags = 0;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
ar8xxx_sw_set_ports(struct switch_dev *dev, struct switch_val *val)
|
|
{
|
|
struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev);
|
|
u8 *vt = &priv->vlan_table[val->port_vlan];
|
|
int i, j;
|
|
|
|
*vt = 0;
|
|
for (i = 0; i < val->len; i++) {
|
|
struct switch_port *p = &val->value.ports[i];
|
|
|
|
if (p->flags & (1 << SWITCH_PORT_FLAG_TAGGED)) {
|
|
priv->vlan_tagged |= (1 << p->id);
|
|
} else {
|
|
priv->vlan_tagged &= ~(1 << p->id);
|
|
priv->pvid[p->id] = val->port_vlan;
|
|
|
|
/* make sure that an untagged port does not
|
|
* appear in other vlans */
|
|
for (j = 0; j < AR8X16_MAX_VLANS; j++) {
|
|
if (j == val->port_vlan)
|
|
continue;
|
|
priv->vlan_table[j] &= ~(1 << p->id);
|
|
}
|
|
}
|
|
|
|
*vt |= 1 << p->id;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
ar8216_set_mirror_regs(struct ar8xxx_priv *priv)
|
|
{
|
|
int port;
|
|
|
|
/* reset all mirror registers */
|
|
ar8xxx_rmw(priv, AR8216_REG_GLOBAL_CPUPORT,
|
|
AR8216_GLOBAL_CPUPORT_MIRROR_PORT,
|
|
(0xF << AR8216_GLOBAL_CPUPORT_MIRROR_PORT_S));
|
|
for (port = 0; port < AR8216_NUM_PORTS; port++) {
|
|
ar8xxx_reg_clear(priv, AR8216_REG_PORT_CTRL(port),
|
|
AR8216_PORT_CTRL_MIRROR_RX);
|
|
|
|
ar8xxx_reg_clear(priv, AR8216_REG_PORT_CTRL(port),
|
|
AR8216_PORT_CTRL_MIRROR_TX);
|
|
}
|
|
|
|
/* now enable mirroring if necessary */
|
|
if (priv->source_port >= AR8216_NUM_PORTS ||
|
|
priv->monitor_port >= AR8216_NUM_PORTS ||
|
|
priv->source_port == priv->monitor_port) {
|
|
return;
|
|
}
|
|
|
|
ar8xxx_rmw(priv, AR8216_REG_GLOBAL_CPUPORT,
|
|
AR8216_GLOBAL_CPUPORT_MIRROR_PORT,
|
|
(priv->monitor_port << AR8216_GLOBAL_CPUPORT_MIRROR_PORT_S));
|
|
|
|
if (priv->mirror_rx)
|
|
ar8xxx_reg_set(priv, AR8216_REG_PORT_CTRL(priv->source_port),
|
|
AR8216_PORT_CTRL_MIRROR_RX);
|
|
|
|
if (priv->mirror_tx)
|
|
ar8xxx_reg_set(priv, AR8216_REG_PORT_CTRL(priv->source_port),
|
|
AR8216_PORT_CTRL_MIRROR_TX);
|
|
}
|
|
|
|
int
|
|
ar8xxx_sw_hw_apply(struct switch_dev *dev)
|
|
{
|
|
struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev);
|
|
u8 portmask[AR8X16_MAX_PORTS];
|
|
int i, j;
|
|
|
|
mutex_lock(&priv->reg_mutex);
|
|
/* flush all vlan translation unit entries */
|
|
priv->chip->vtu_flush(priv);
|
|
|
|
memset(portmask, 0, sizeof(portmask));
|
|
if (!priv->init) {
|
|
/* calculate the port destination masks and load vlans
|
|
* into the vlan translation unit */
|
|
for (j = 0; j < AR8X16_MAX_VLANS; j++) {
|
|
u8 vp = priv->vlan_table[j];
|
|
|
|
if (!vp)
|
|
continue;
|
|
|
|
for (i = 0; i < dev->ports; i++) {
|
|
u8 mask = (1 << i);
|
|
if (vp & mask)
|
|
portmask[i] |= vp & ~mask;
|
|
}
|
|
|
|
priv->chip->vtu_load_vlan(priv, priv->vlan_id[j],
|
|
priv->vlan_table[j]);
|
|
}
|
|
} else {
|
|
/* vlan disabled:
|
|
* isolate all ports, but connect them to the cpu port */
|
|
for (i = 0; i < dev->ports; i++) {
|
|
if (i == AR8216_PORT_CPU)
|
|
continue;
|
|
|
|
portmask[i] = 1 << AR8216_PORT_CPU;
|
|
portmask[AR8216_PORT_CPU] |= (1 << i);
|
|
}
|
|
}
|
|
|
|
/* update the port destination mask registers and tag settings */
|
|
for (i = 0; i < dev->ports; i++) {
|
|
priv->chip->setup_port(priv, i, portmask[i]);
|
|
}
|
|
|
|
priv->chip->set_mirror_regs(priv);
|
|
|
|
mutex_unlock(&priv->reg_mutex);
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
ar8xxx_sw_reset_switch(struct switch_dev *dev)
|
|
{
|
|
struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev);
|
|
const struct ar8xxx_chip *chip = priv->chip;
|
|
int i;
|
|
|
|
mutex_lock(&priv->reg_mutex);
|
|
memset(&priv->vlan, 0, sizeof(struct ar8xxx_priv) -
|
|
offsetof(struct ar8xxx_priv, vlan));
|
|
|
|
for (i = 0; i < AR8X16_MAX_VLANS; i++)
|
|
priv->vlan_id[i] = i;
|
|
|
|
/* Configure all ports */
|
|
for (i = 0; i < dev->ports; i++)
|
|
chip->init_port(priv, i);
|
|
|
|
priv->mirror_rx = false;
|
|
priv->mirror_tx = false;
|
|
priv->source_port = 0;
|
|
priv->monitor_port = 0;
|
|
|
|
chip->init_globals(priv);
|
|
|
|
mutex_unlock(&priv->reg_mutex);
|
|
|
|
return chip->sw_hw_apply(dev);
|
|
}
|
|
|
|
int
|
|
ar8xxx_sw_set_reset_mibs(struct switch_dev *dev,
|
|
const struct switch_attr *attr,
|
|
struct switch_val *val)
|
|
{
|
|
struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev);
|
|
unsigned int len;
|
|
int ret;
|
|
|
|
if (!ar8xxx_has_mib_counters(priv))
|
|
return -EOPNOTSUPP;
|
|
|
|
mutex_lock(&priv->mib_lock);
|
|
|
|
len = priv->dev.ports * priv->chip->num_mibs *
|
|
sizeof(*priv->mib_stats);
|
|
memset(priv->mib_stats, '\0', len);
|
|
ret = ar8xxx_mib_flush(priv);
|
|
if (ret)
|
|
goto unlock;
|
|
|
|
ret = 0;
|
|
|
|
unlock:
|
|
mutex_unlock(&priv->mib_lock);
|
|
return ret;
|
|
}
|
|
|
|
int
|
|
ar8xxx_sw_set_mirror_rx_enable(struct switch_dev *dev,
|
|
const struct switch_attr *attr,
|
|
struct switch_val *val)
|
|
{
|
|
struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev);
|
|
|
|
mutex_lock(&priv->reg_mutex);
|
|
priv->mirror_rx = !!val->value.i;
|
|
priv->chip->set_mirror_regs(priv);
|
|
mutex_unlock(&priv->reg_mutex);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
ar8xxx_sw_get_mirror_rx_enable(struct switch_dev *dev,
|
|
const struct switch_attr *attr,
|
|
struct switch_val *val)
|
|
{
|
|
struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev);
|
|
val->value.i = priv->mirror_rx;
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
ar8xxx_sw_set_mirror_tx_enable(struct switch_dev *dev,
|
|
const struct switch_attr *attr,
|
|
struct switch_val *val)
|
|
{
|
|
struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev);
|
|
|
|
mutex_lock(&priv->reg_mutex);
|
|
priv->mirror_tx = !!val->value.i;
|
|
priv->chip->set_mirror_regs(priv);
|
|
mutex_unlock(&priv->reg_mutex);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
ar8xxx_sw_get_mirror_tx_enable(struct switch_dev *dev,
|
|
const struct switch_attr *attr,
|
|
struct switch_val *val)
|
|
{
|
|
struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev);
|
|
val->value.i = priv->mirror_tx;
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
ar8xxx_sw_set_mirror_monitor_port(struct switch_dev *dev,
|
|
const struct switch_attr *attr,
|
|
struct switch_val *val)
|
|
{
|
|
struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev);
|
|
|
|
mutex_lock(&priv->reg_mutex);
|
|
priv->monitor_port = val->value.i;
|
|
priv->chip->set_mirror_regs(priv);
|
|
mutex_unlock(&priv->reg_mutex);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
ar8xxx_sw_get_mirror_monitor_port(struct switch_dev *dev,
|
|
const struct switch_attr *attr,
|
|
struct switch_val *val)
|
|
{
|
|
struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev);
|
|
val->value.i = priv->monitor_port;
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
ar8xxx_sw_set_mirror_source_port(struct switch_dev *dev,
|
|
const struct switch_attr *attr,
|
|
struct switch_val *val)
|
|
{
|
|
struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev);
|
|
|
|
mutex_lock(&priv->reg_mutex);
|
|
priv->source_port = val->value.i;
|
|
priv->chip->set_mirror_regs(priv);
|
|
mutex_unlock(&priv->reg_mutex);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
ar8xxx_sw_get_mirror_source_port(struct switch_dev *dev,
|
|
const struct switch_attr *attr,
|
|
struct switch_val *val)
|
|
{
|
|
struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev);
|
|
val->value.i = priv->source_port;
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
ar8xxx_sw_set_port_reset_mib(struct switch_dev *dev,
|
|
const struct switch_attr *attr,
|
|
struct switch_val *val)
|
|
{
|
|
struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev);
|
|
int port;
|
|
int ret;
|
|
|
|
if (!ar8xxx_has_mib_counters(priv))
|
|
return -EOPNOTSUPP;
|
|
|
|
port = val->port_vlan;
|
|
if (port >= dev->ports)
|
|
return -EINVAL;
|
|
|
|
mutex_lock(&priv->mib_lock);
|
|
ret = ar8xxx_mib_capture(priv);
|
|
if (ret)
|
|
goto unlock;
|
|
|
|
ar8xxx_mib_fetch_port_stat(priv, port, true);
|
|
|
|
ret = 0;
|
|
|
|
unlock:
|
|
mutex_unlock(&priv->mib_lock);
|
|
return ret;
|
|
}
|
|
|
|
int
|
|
ar8xxx_sw_get_port_mib(struct switch_dev *dev,
|
|
const struct switch_attr *attr,
|
|
struct switch_val *val)
|
|
{
|
|
struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev);
|
|
const struct ar8xxx_chip *chip = priv->chip;
|
|
u64 *mib_stats;
|
|
int port;
|
|
int ret;
|
|
char *buf = priv->buf;
|
|
int i, len = 0;
|
|
|
|
if (!ar8xxx_has_mib_counters(priv))
|
|
return -EOPNOTSUPP;
|
|
|
|
port = val->port_vlan;
|
|
if (port >= dev->ports)
|
|
return -EINVAL;
|
|
|
|
mutex_lock(&priv->mib_lock);
|
|
ret = ar8xxx_mib_capture(priv);
|
|
if (ret)
|
|
goto unlock;
|
|
|
|
ar8xxx_mib_fetch_port_stat(priv, port, false);
|
|
|
|
len += snprintf(buf + len, sizeof(priv->buf) - len,
|
|
"Port %d MIB counters\n",
|
|
port);
|
|
|
|
mib_stats = &priv->mib_stats[port * chip->num_mibs];
|
|
for (i = 0; i < chip->num_mibs; i++)
|
|
len += snprintf(buf + len, sizeof(priv->buf) - len,
|
|
"%-12s: %llu\n",
|
|
chip->mib_decs[i].name,
|
|
mib_stats[i]);
|
|
|
|
val->value.s = buf;
|
|
val->len = len;
|
|
|
|
ret = 0;
|
|
|
|
unlock:
|
|
mutex_unlock(&priv->mib_lock);
|
|
return ret;
|
|
}
|
|
|
|
int
|
|
ar8xxx_sw_get_arl_table(struct switch_dev *dev,
|
|
const struct switch_attr *attr,
|
|
struct switch_val *val)
|
|
{
|
|
struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev);
|
|
struct mii_bus *bus = priv->mii_bus;
|
|
const struct ar8xxx_chip *chip = priv->chip;
|
|
char *buf = priv->arl_buf;
|
|
int i, j, k, len = 0;
|
|
struct arl_entry *a, *a1;
|
|
u32 status;
|
|
|
|
if (!chip->get_arl_entry)
|
|
return -EOPNOTSUPP;
|
|
|
|
mutex_lock(&priv->reg_mutex);
|
|
mutex_lock(&bus->mdio_lock);
|
|
|
|
chip->get_arl_entry(priv, NULL, NULL, AR8XXX_ARL_INITIALIZE);
|
|
|
|
for(i = 0; i < AR8XXX_NUM_ARL_RECORDS; ++i) {
|
|
a = &priv->arl_table[i];
|
|
duplicate:
|
|
chip->get_arl_entry(priv, a, &status, AR8XXX_ARL_GET_NEXT);
|
|
|
|
if (!status)
|
|
break;
|
|
|
|
/* avoid duplicates
|
|
* ARL table can include multiple valid entries
|
|
* per MAC, just with differing status codes
|
|
*/
|
|
for (j = 0; j < i; ++j) {
|
|
a1 = &priv->arl_table[j];
|
|
if (a->port == a1->port && !memcmp(a->mac, a1->mac, sizeof(a->mac)))
|
|
goto duplicate;
|
|
}
|
|
}
|
|
|
|
mutex_unlock(&bus->mdio_lock);
|
|
|
|
len += snprintf(buf + len, sizeof(priv->arl_buf) - len,
|
|
"address resolution table\n");
|
|
|
|
if (i == AR8XXX_NUM_ARL_RECORDS)
|
|
len += snprintf(buf + len, sizeof(priv->arl_buf) - len,
|
|
"Too many entries found, displaying the first %d only!\n",
|
|
AR8XXX_NUM_ARL_RECORDS);
|
|
|
|
for (j = 0; j < priv->dev.ports; ++j) {
|
|
for (k = 0; k < i; ++k) {
|
|
a = &priv->arl_table[k];
|
|
if (a->port != j)
|
|
continue;
|
|
len += snprintf(buf + len, sizeof(priv->arl_buf) - len,
|
|
"Port %d: MAC %02x:%02x:%02x:%02x:%02x:%02x\n",
|
|
j,
|
|
a->mac[5], a->mac[4], a->mac[3],
|
|
a->mac[2], a->mac[1], a->mac[0]);
|
|
}
|
|
}
|
|
|
|
val->value.s = buf;
|
|
val->len = len;
|
|
|
|
mutex_unlock(&priv->reg_mutex);
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static const struct switch_attr ar8xxx_sw_attr_globals[] = {
|
|
{
|
|
.type = SWITCH_TYPE_INT,
|
|
.name = "enable_vlan",
|
|
.description = "Enable VLAN mode",
|
|
.set = ar8xxx_sw_set_vlan,
|
|
.get = ar8xxx_sw_get_vlan,
|
|
.max = 1
|
|
},
|
|
{
|
|
.type = SWITCH_TYPE_NOVAL,
|
|
.name = "reset_mibs",
|
|
.description = "Reset all MIB counters",
|
|
.set = ar8xxx_sw_set_reset_mibs,
|
|
},
|
|
{
|
|
.type = SWITCH_TYPE_INT,
|
|
.name = "enable_mirror_rx",
|
|
.description = "Enable mirroring of RX packets",
|
|
.set = ar8xxx_sw_set_mirror_rx_enable,
|
|
.get = ar8xxx_sw_get_mirror_rx_enable,
|
|
.max = 1
|
|
},
|
|
{
|
|
.type = SWITCH_TYPE_INT,
|
|
.name = "enable_mirror_tx",
|
|
.description = "Enable mirroring of TX packets",
|
|
.set = ar8xxx_sw_set_mirror_tx_enable,
|
|
.get = ar8xxx_sw_get_mirror_tx_enable,
|
|
.max = 1
|
|
},
|
|
{
|
|
.type = SWITCH_TYPE_INT,
|
|
.name = "mirror_monitor_port",
|
|
.description = "Mirror monitor port",
|
|
.set = ar8xxx_sw_set_mirror_monitor_port,
|
|
.get = ar8xxx_sw_get_mirror_monitor_port,
|
|
.max = AR8216_NUM_PORTS - 1
|
|
},
|
|
{
|
|
.type = SWITCH_TYPE_INT,
|
|
.name = "mirror_source_port",
|
|
.description = "Mirror source port",
|
|
.set = ar8xxx_sw_set_mirror_source_port,
|
|
.get = ar8xxx_sw_get_mirror_source_port,
|
|
.max = AR8216_NUM_PORTS - 1
|
|
},
|
|
{
|
|
.type = SWITCH_TYPE_STRING,
|
|
.name = "arl_table",
|
|
.description = "Get ARL table",
|
|
.set = NULL,
|
|
.get = ar8xxx_sw_get_arl_table,
|
|
},
|
|
};
|
|
|
|
const struct switch_attr ar8xxx_sw_attr_port[2] = {
|
|
{
|
|
.type = SWITCH_TYPE_NOVAL,
|
|
.name = "reset_mib",
|
|
.description = "Reset single port MIB counters",
|
|
.set = ar8xxx_sw_set_port_reset_mib,
|
|
},
|
|
{
|
|
.type = SWITCH_TYPE_STRING,
|
|
.name = "mib",
|
|
.description = "Get port's MIB counters",
|
|
.set = NULL,
|
|
.get = ar8xxx_sw_get_port_mib,
|
|
},
|
|
};
|
|
|
|
const struct switch_attr ar8xxx_sw_attr_vlan[1] = {
|
|
{
|
|
.type = SWITCH_TYPE_INT,
|
|
.name = "vid",
|
|
.description = "VLAN ID (0-4094)",
|
|
.set = ar8xxx_sw_set_vid,
|
|
.get = ar8xxx_sw_get_vid,
|
|
.max = 4094,
|
|
},
|
|
};
|
|
|
|
static const struct switch_dev_ops ar8xxx_sw_ops = {
|
|
.attr_global = {
|
|
.attr = ar8xxx_sw_attr_globals,
|
|
.n_attr = ARRAY_SIZE(ar8xxx_sw_attr_globals),
|
|
},
|
|
.attr_port = {
|
|
.attr = ar8xxx_sw_attr_port,
|
|
.n_attr = ARRAY_SIZE(ar8xxx_sw_attr_port),
|
|
},
|
|
.attr_vlan = {
|
|
.attr = ar8xxx_sw_attr_vlan,
|
|
.n_attr = ARRAY_SIZE(ar8xxx_sw_attr_vlan),
|
|
},
|
|
.get_port_pvid = ar8xxx_sw_get_pvid,
|
|
.set_port_pvid = ar8xxx_sw_set_pvid,
|
|
.get_vlan_ports = ar8xxx_sw_get_ports,
|
|
.set_vlan_ports = ar8xxx_sw_set_ports,
|
|
.apply_config = ar8xxx_sw_hw_apply,
|
|
.reset_switch = ar8xxx_sw_reset_switch,
|
|
.get_port_link = ar8xxx_sw_get_port_link,
|
|
};
|
|
|
|
static const struct ar8xxx_chip ar8216_chip = {
|
|
.caps = AR8XXX_CAP_MIB_COUNTERS,
|
|
|
|
.reg_port_stats_start = 0x19000,
|
|
.reg_port_stats_length = 0xa0,
|
|
|
|
.name = "Atheros AR8216",
|
|
.ports = AR8216_NUM_PORTS,
|
|
.vlans = AR8216_NUM_VLANS,
|
|
.swops = &ar8xxx_sw_ops,
|
|
|
|
.hw_init = ar8216_hw_init,
|
|
.init_globals = ar8216_init_globals,
|
|
.init_port = ar8216_init_port,
|
|
.setup_port = ar8216_setup_port,
|
|
.read_port_status = ar8216_read_port_status,
|
|
.atu_flush = ar8216_atu_flush,
|
|
.vtu_flush = ar8216_vtu_flush,
|
|
.vtu_load_vlan = ar8216_vtu_load_vlan,
|
|
.set_mirror_regs = ar8216_set_mirror_regs,
|
|
.sw_hw_apply = ar8xxx_sw_hw_apply,
|
|
|
|
.num_mibs = ARRAY_SIZE(ar8216_mibs),
|
|
.mib_decs = ar8216_mibs,
|
|
.mib_func = AR8216_REG_MIB_FUNC
|
|
};
|
|
|
|
static const struct ar8xxx_chip ar8236_chip = {
|
|
.caps = AR8XXX_CAP_MIB_COUNTERS,
|
|
|
|
.reg_port_stats_start = 0x20000,
|
|
.reg_port_stats_length = 0x100,
|
|
|
|
.name = "Atheros AR8236",
|
|
.ports = AR8216_NUM_PORTS,
|
|
.vlans = AR8216_NUM_VLANS,
|
|
.swops = &ar8xxx_sw_ops,
|
|
|
|
.hw_init = ar8216_hw_init,
|
|
.init_globals = ar8236_init_globals,
|
|
.init_port = ar8216_init_port,
|
|
.setup_port = ar8236_setup_port,
|
|
.read_port_status = ar8216_read_port_status,
|
|
.atu_flush = ar8216_atu_flush,
|
|
.vtu_flush = ar8216_vtu_flush,
|
|
.vtu_load_vlan = ar8216_vtu_load_vlan,
|
|
.set_mirror_regs = ar8216_set_mirror_regs,
|
|
.sw_hw_apply = ar8xxx_sw_hw_apply,
|
|
|
|
.num_mibs = ARRAY_SIZE(ar8236_mibs),
|
|
.mib_decs = ar8236_mibs,
|
|
.mib_func = AR8216_REG_MIB_FUNC
|
|
};
|
|
|
|
static const struct ar8xxx_chip ar8316_chip = {
|
|
.caps = AR8XXX_CAP_GIGE | AR8XXX_CAP_MIB_COUNTERS,
|
|
|
|
.reg_port_stats_start = 0x20000,
|
|
.reg_port_stats_length = 0x100,
|
|
|
|
.name = "Atheros AR8316",
|
|
.ports = AR8216_NUM_PORTS,
|
|
.vlans = AR8X16_MAX_VLANS,
|
|
.swops = &ar8xxx_sw_ops,
|
|
|
|
.hw_init = ar8316_hw_init,
|
|
.init_globals = ar8316_init_globals,
|
|
.init_port = ar8216_init_port,
|
|
.setup_port = ar8216_setup_port,
|
|
.read_port_status = ar8216_read_port_status,
|
|
.atu_flush = ar8216_atu_flush,
|
|
.vtu_flush = ar8216_vtu_flush,
|
|
.vtu_load_vlan = ar8216_vtu_load_vlan,
|
|
.set_mirror_regs = ar8216_set_mirror_regs,
|
|
.sw_hw_apply = ar8xxx_sw_hw_apply,
|
|
|
|
.num_mibs = ARRAY_SIZE(ar8236_mibs),
|
|
.mib_decs = ar8236_mibs,
|
|
.mib_func = AR8216_REG_MIB_FUNC
|
|
};
|
|
|
|
static int
|
|
ar8xxx_id_chip(struct ar8xxx_priv *priv)
|
|
{
|
|
u32 val;
|
|
u16 id;
|
|
int i;
|
|
|
|
val = ar8xxx_read(priv, AR8216_REG_CTRL);
|
|
if (val == ~0)
|
|
return -ENODEV;
|
|
|
|
id = val & (AR8216_CTRL_REVISION | AR8216_CTRL_VERSION);
|
|
for (i = 0; i < AR8X16_PROBE_RETRIES; i++) {
|
|
u16 t;
|
|
|
|
val = ar8xxx_read(priv, AR8216_REG_CTRL);
|
|
if (val == ~0)
|
|
return -ENODEV;
|
|
|
|
t = val & (AR8216_CTRL_REVISION | AR8216_CTRL_VERSION);
|
|
if (t != id)
|
|
return -ENODEV;
|
|
}
|
|
|
|
priv->chip_ver = (id & AR8216_CTRL_VERSION) >> AR8216_CTRL_VERSION_S;
|
|
priv->chip_rev = (id & AR8216_CTRL_REVISION);
|
|
|
|
switch (priv->chip_ver) {
|
|
case AR8XXX_VER_AR8216:
|
|
priv->chip = &ar8216_chip;
|
|
break;
|
|
case AR8XXX_VER_AR8236:
|
|
priv->chip = &ar8236_chip;
|
|
break;
|
|
case AR8XXX_VER_AR8316:
|
|
priv->chip = &ar8316_chip;
|
|
break;
|
|
case AR8XXX_VER_AR8327:
|
|
priv->chip = &ar8327_chip;
|
|
break;
|
|
case AR8XXX_VER_AR8337:
|
|
priv->chip = &ar8337_chip;
|
|
break;
|
|
default:
|
|
pr_err("ar8216: Unknown Atheros device [ver=%d, rev=%d]\n",
|
|
priv->chip_ver, priv->chip_rev);
|
|
|
|
return -ENODEV;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
ar8xxx_mib_work_func(struct work_struct *work)
|
|
{
|
|
struct ar8xxx_priv *priv;
|
|
int err;
|
|
|
|
priv = container_of(work, struct ar8xxx_priv, mib_work.work);
|
|
|
|
mutex_lock(&priv->mib_lock);
|
|
|
|
err = ar8xxx_mib_capture(priv);
|
|
if (err)
|
|
goto next_port;
|
|
|
|
ar8xxx_mib_fetch_port_stat(priv, priv->mib_next_port, false);
|
|
|
|
next_port:
|
|
priv->mib_next_port++;
|
|
if (priv->mib_next_port >= priv->dev.ports)
|
|
priv->mib_next_port = 0;
|
|
|
|
mutex_unlock(&priv->mib_lock);
|
|
schedule_delayed_work(&priv->mib_work,
|
|
msecs_to_jiffies(AR8XXX_MIB_WORK_DELAY));
|
|
}
|
|
|
|
static int
|
|
ar8xxx_mib_init(struct ar8xxx_priv *priv)
|
|
{
|
|
unsigned int len;
|
|
|
|
if (!ar8xxx_has_mib_counters(priv))
|
|
return 0;
|
|
|
|
BUG_ON(!priv->chip->mib_decs || !priv->chip->num_mibs);
|
|
|
|
len = priv->dev.ports * priv->chip->num_mibs *
|
|
sizeof(*priv->mib_stats);
|
|
priv->mib_stats = kzalloc(len, GFP_KERNEL);
|
|
|
|
if (!priv->mib_stats)
|
|
return -ENOMEM;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
ar8xxx_mib_start(struct ar8xxx_priv *priv)
|
|
{
|
|
if (!ar8xxx_has_mib_counters(priv))
|
|
return;
|
|
|
|
schedule_delayed_work(&priv->mib_work,
|
|
msecs_to_jiffies(AR8XXX_MIB_WORK_DELAY));
|
|
}
|
|
|
|
static void
|
|
ar8xxx_mib_stop(struct ar8xxx_priv *priv)
|
|
{
|
|
if (!ar8xxx_has_mib_counters(priv))
|
|
return;
|
|
|
|
cancel_delayed_work(&priv->mib_work);
|
|
}
|
|
|
|
static struct ar8xxx_priv *
|
|
ar8xxx_create(void)
|
|
{
|
|
struct ar8xxx_priv *priv;
|
|
|
|
priv = kzalloc(sizeof(struct ar8xxx_priv), GFP_KERNEL);
|
|
if (priv == NULL)
|
|
return NULL;
|
|
|
|
mutex_init(&priv->reg_mutex);
|
|
mutex_init(&priv->mib_lock);
|
|
INIT_DELAYED_WORK(&priv->mib_work, ar8xxx_mib_work_func);
|
|
|
|
return priv;
|
|
}
|
|
|
|
static void
|
|
ar8xxx_free(struct ar8xxx_priv *priv)
|
|
{
|
|
if (priv->chip && priv->chip->cleanup)
|
|
priv->chip->cleanup(priv);
|
|
|
|
kfree(priv->chip_data);
|
|
kfree(priv->mib_stats);
|
|
kfree(priv);
|
|
}
|
|
|
|
static int
|
|
ar8xxx_probe_switch(struct ar8xxx_priv *priv)
|
|
{
|
|
const struct ar8xxx_chip *chip;
|
|
struct switch_dev *swdev;
|
|
int ret;
|
|
|
|
ret = ar8xxx_id_chip(priv);
|
|
if (ret)
|
|
return ret;
|
|
|
|
chip = priv->chip;
|
|
|
|
swdev = &priv->dev;
|
|
swdev->cpu_port = AR8216_PORT_CPU;
|
|
swdev->name = chip->name;
|
|
swdev->vlans = chip->vlans;
|
|
swdev->ports = chip->ports;
|
|
swdev->ops = chip->swops;
|
|
|
|
ret = ar8xxx_mib_init(priv);
|
|
if (ret)
|
|
return ret;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
ar8xxx_start(struct ar8xxx_priv *priv)
|
|
{
|
|
int ret;
|
|
|
|
priv->init = true;
|
|
|
|
ret = priv->chip->hw_init(priv);
|
|
if (ret)
|
|
return ret;
|
|
|
|
ret = ar8xxx_sw_reset_switch(&priv->dev);
|
|
if (ret)
|
|
return ret;
|
|
|
|
priv->init = false;
|
|
|
|
ar8xxx_mib_start(priv);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
ar8xxx_phy_config_init(struct phy_device *phydev)
|
|
{
|
|
struct ar8xxx_priv *priv = phydev->priv;
|
|
struct net_device *dev = phydev->attached_dev;
|
|
int ret;
|
|
|
|
if (WARN_ON(!priv))
|
|
return -ENODEV;
|
|
|
|
if (priv->chip->config_at_probe)
|
|
return ar8xxx_phy_check_aneg(phydev);
|
|
|
|
priv->phy = phydev;
|
|
|
|
if (phydev->addr != 0) {
|
|
if (chip_is_ar8316(priv)) {
|
|
/* switch device has been initialized, reinit */
|
|
priv->dev.ports = (AR8216_NUM_PORTS - 1);
|
|
priv->initialized = false;
|
|
priv->port4_phy = true;
|
|
ar8316_hw_init(priv);
|
|
return 0;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
ret = ar8xxx_start(priv);
|
|
if (ret)
|
|
return ret;
|
|
|
|
/* VID fixup only needed on ar8216 */
|
|
if (chip_is_ar8216(priv)) {
|
|
dev->phy_ptr = priv;
|
|
dev->priv_flags |= IFF_NO_IP_ALIGN;
|
|
dev->eth_mangle_rx = ar8216_mangle_rx;
|
|
dev->eth_mangle_tx = ar8216_mangle_tx;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static bool
|
|
ar8xxx_check_link_states(struct ar8xxx_priv *priv)
|
|
{
|
|
bool link_new, changed = false;
|
|
u32 status;
|
|
int i;
|
|
|
|
mutex_lock(&priv->reg_mutex);
|
|
|
|
for (i = 0; i < priv->dev.ports; i++) {
|
|
status = priv->chip->read_port_status(priv, i);
|
|
link_new = !!(status & AR8216_PORT_STATUS_LINK_UP);
|
|
if (link_new == priv->link_up[i])
|
|
continue;
|
|
|
|
priv->link_up[i] = link_new;
|
|
changed = true;
|
|
dev_info(&priv->phy->dev, "Port %d is %s\n",
|
|
i, link_new ? "up" : "down");
|
|
}
|
|
|
|
if (changed)
|
|
priv->chip->atu_flush(priv);
|
|
|
|
mutex_unlock(&priv->reg_mutex);
|
|
|
|
return changed;
|
|
}
|
|
|
|
static int
|
|
ar8xxx_phy_read_status(struct phy_device *phydev)
|
|
{
|
|
struct ar8xxx_priv *priv = phydev->priv;
|
|
struct switch_port_link link;
|
|
|
|
/* check for link changes and flush ATU
|
|
* if a change was detected
|
|
*/
|
|
if (phydev->state == PHY_CHANGELINK)
|
|
ar8xxx_check_link_states(priv);
|
|
|
|
if (phydev->addr != 0)
|
|
return genphy_read_status(phydev);
|
|
|
|
ar8216_read_port_link(priv, phydev->addr, &link);
|
|
phydev->link = !!link.link;
|
|
if (!phydev->link)
|
|
return 0;
|
|
|
|
switch (link.speed) {
|
|
case SWITCH_PORT_SPEED_10:
|
|
phydev->speed = SPEED_10;
|
|
break;
|
|
case SWITCH_PORT_SPEED_100:
|
|
phydev->speed = SPEED_100;
|
|
break;
|
|
case SWITCH_PORT_SPEED_1000:
|
|
phydev->speed = SPEED_1000;
|
|
break;
|
|
default:
|
|
phydev->speed = 0;
|
|
}
|
|
phydev->duplex = link.duplex ? DUPLEX_FULL : DUPLEX_HALF;
|
|
|
|
phydev->state = PHY_RUNNING;
|
|
netif_carrier_on(phydev->attached_dev);
|
|
phydev->adjust_link(phydev->attached_dev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
ar8xxx_phy_config_aneg(struct phy_device *phydev)
|
|
{
|
|
if (phydev->addr == 0)
|
|
return 0;
|
|
|
|
return genphy_config_aneg(phydev);
|
|
}
|
|
|
|
static const u32 ar8xxx_phy_ids[] = {
|
|
0x004dd033,
|
|
0x004dd034, /* AR8327 */
|
|
0x004dd036, /* AR8337 */
|
|
0x004dd041,
|
|
0x004dd042,
|
|
0x004dd043, /* AR8236 */
|
|
};
|
|
|
|
static bool
|
|
ar8xxx_phy_match(u32 phy_id)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(ar8xxx_phy_ids); i++)
|
|
if (phy_id == ar8xxx_phy_ids[i])
|
|
return true;
|
|
|
|
return false;
|
|
}
|
|
|
|
static bool
|
|
ar8xxx_is_possible(struct mii_bus *bus)
|
|
{
|
|
unsigned i;
|
|
|
|
for (i = 0; i < 4; i++) {
|
|
u32 phy_id;
|
|
|
|
phy_id = mdiobus_read(bus, i, MII_PHYSID1) << 16;
|
|
phy_id |= mdiobus_read(bus, i, MII_PHYSID2);
|
|
if (!ar8xxx_phy_match(phy_id)) {
|
|
pr_debug("ar8xxx: unknown PHY at %s:%02x id:%08x\n",
|
|
dev_name(&bus->dev), i, phy_id);
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
static int
|
|
ar8xxx_phy_probe(struct phy_device *phydev)
|
|
{
|
|
struct ar8xxx_priv *priv;
|
|
struct switch_dev *swdev;
|
|
int ret;
|
|
|
|
/* skip PHYs at unused adresses */
|
|
if (phydev->addr != 0 && phydev->addr != 4)
|
|
return -ENODEV;
|
|
|
|
if (!ar8xxx_is_possible(phydev->bus))
|
|
return -ENODEV;
|
|
|
|
mutex_lock(&ar8xxx_dev_list_lock);
|
|
list_for_each_entry(priv, &ar8xxx_dev_list, list)
|
|
if (priv->mii_bus == phydev->bus)
|
|
goto found;
|
|
|
|
priv = ar8xxx_create();
|
|
if (priv == NULL) {
|
|
ret = -ENOMEM;
|
|
goto unlock;
|
|
}
|
|
|
|
priv->mii_bus = phydev->bus;
|
|
|
|
ret = ar8xxx_probe_switch(priv);
|
|
if (ret)
|
|
goto free_priv;
|
|
|
|
swdev = &priv->dev;
|
|
swdev->alias = dev_name(&priv->mii_bus->dev);
|
|
ret = register_switch(swdev, NULL);
|
|
if (ret)
|
|
goto free_priv;
|
|
|
|
pr_info("%s: %s rev. %u switch registered on %s\n",
|
|
swdev->devname, swdev->name, priv->chip_rev,
|
|
dev_name(&priv->mii_bus->dev));
|
|
|
|
found:
|
|
priv->use_count++;
|
|
|
|
if (phydev->addr == 0) {
|
|
if (ar8xxx_has_gige(priv)) {
|
|
phydev->supported = SUPPORTED_1000baseT_Full;
|
|
phydev->advertising = ADVERTISED_1000baseT_Full;
|
|
} else {
|
|
phydev->supported = SUPPORTED_100baseT_Full;
|
|
phydev->advertising = ADVERTISED_100baseT_Full;
|
|
}
|
|
|
|
if (priv->chip->config_at_probe) {
|
|
priv->phy = phydev;
|
|
|
|
ret = ar8xxx_start(priv);
|
|
if (ret)
|
|
goto err_unregister_switch;
|
|
}
|
|
} else {
|
|
if (ar8xxx_has_gige(priv)) {
|
|
phydev->supported |= SUPPORTED_1000baseT_Full;
|
|
phydev->advertising |= ADVERTISED_1000baseT_Full;
|
|
}
|
|
}
|
|
|
|
phydev->priv = priv;
|
|
|
|
list_add(&priv->list, &ar8xxx_dev_list);
|
|
|
|
mutex_unlock(&ar8xxx_dev_list_lock);
|
|
|
|
return 0;
|
|
|
|
err_unregister_switch:
|
|
if (--priv->use_count)
|
|
goto unlock;
|
|
|
|
unregister_switch(&priv->dev);
|
|
|
|
free_priv:
|
|
ar8xxx_free(priv);
|
|
unlock:
|
|
mutex_unlock(&ar8xxx_dev_list_lock);
|
|
return ret;
|
|
}
|
|
|
|
static void
|
|
ar8xxx_phy_detach(struct phy_device *phydev)
|
|
{
|
|
struct net_device *dev = phydev->attached_dev;
|
|
|
|
if (!dev)
|
|
return;
|
|
|
|
dev->phy_ptr = NULL;
|
|
dev->priv_flags &= ~IFF_NO_IP_ALIGN;
|
|
dev->eth_mangle_rx = NULL;
|
|
dev->eth_mangle_tx = NULL;
|
|
}
|
|
|
|
static void
|
|
ar8xxx_phy_remove(struct phy_device *phydev)
|
|
{
|
|
struct ar8xxx_priv *priv = phydev->priv;
|
|
|
|
if (WARN_ON(!priv))
|
|
return;
|
|
|
|
phydev->priv = NULL;
|
|
if (--priv->use_count > 0)
|
|
return;
|
|
|
|
mutex_lock(&ar8xxx_dev_list_lock);
|
|
list_del(&priv->list);
|
|
mutex_unlock(&ar8xxx_dev_list_lock);
|
|
|
|
unregister_switch(&priv->dev);
|
|
ar8xxx_mib_stop(priv);
|
|
ar8xxx_free(priv);
|
|
}
|
|
|
|
#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)
|
|
static int
|
|
ar8xxx_phy_soft_reset(struct phy_device *phydev)
|
|
{
|
|
/* we don't need an extra reset */
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
static struct phy_driver ar8xxx_phy_driver = {
|
|
.phy_id = 0x004d0000,
|
|
.name = "Atheros AR8216/AR8236/AR8316",
|
|
.phy_id_mask = 0xffff0000,
|
|
.features = PHY_BASIC_FEATURES,
|
|
.probe = ar8xxx_phy_probe,
|
|
.remove = ar8xxx_phy_remove,
|
|
.detach = ar8xxx_phy_detach,
|
|
.config_init = ar8xxx_phy_config_init,
|
|
.config_aneg = ar8xxx_phy_config_aneg,
|
|
.read_status = ar8xxx_phy_read_status,
|
|
#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)
|
|
.soft_reset = ar8xxx_phy_soft_reset,
|
|
#endif
|
|
.driver = { .owner = THIS_MODULE },
|
|
};
|
|
|
|
int __init
|
|
ar8xxx_init(void)
|
|
{
|
|
return phy_driver_register(&ar8xxx_phy_driver);
|
|
}
|
|
|
|
void __exit
|
|
ar8xxx_exit(void)
|
|
{
|
|
phy_driver_unregister(&ar8xxx_phy_driver);
|
|
}
|
|
|
|
module_init(ar8xxx_init);
|
|
module_exit(ar8xxx_exit);
|
|
MODULE_LICENSE("GPL");
|
|
|