2 * ar8216.c: AR8216 switch driver
4 * Copyright (C) 2009 Felix Fietkau <nbd@nbd.name>
5 * Copyright (C) 2011-2012 Gabor Juhos <juhosg@openwrt.org>
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation; either version 2
10 * of the License, or (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
19 #include <linux/module.h>
20 #include <linux/init.h>
21 #include <linux/list.h>
22 #include <linux/if_ether.h>
23 #include <linux/skbuff.h>
24 #include <linux/netdevice.h>
25 #include <linux/netlink.h>
26 #include <linux/bitops.h>
27 #include <net/genetlink.h>
28 #include <linux/switch.h>
29 #include <linux/delay.h>
30 #include <linux/phy.h>
31 #include <linux/netdevice.h>
32 #include <linux/etherdevice.h>
33 #include <linux/lockdep.h>
34 #include <linux/ar8216_platform.h>
35 #include <linux/workqueue.h>
36 #include <linux/version.h>
40 extern const struct ar8xxx_chip ar8327_chip;
41 extern const struct ar8xxx_chip ar8337_chip;
43 #define AR8XXX_MIB_WORK_DELAY 2000 /* msecs */
45 #define MIB_DESC(_s , _o, _n) \
52 static const struct ar8xxx_mib_desc ar8216_mibs[] = {
53 MIB_DESC(1, AR8216_STATS_RXBROAD, "RxBroad"),
54 MIB_DESC(1, AR8216_STATS_RXPAUSE, "RxPause"),
55 MIB_DESC(1, AR8216_STATS_RXMULTI, "RxMulti"),
56 MIB_DESC(1, AR8216_STATS_RXFCSERR, "RxFcsErr"),
57 MIB_DESC(1, AR8216_STATS_RXALIGNERR, "RxAlignErr"),
58 MIB_DESC(1, AR8216_STATS_RXRUNT, "RxRunt"),
59 MIB_DESC(1, AR8216_STATS_RXFRAGMENT, "RxFragment"),
60 MIB_DESC(1, AR8216_STATS_RX64BYTE, "Rx64Byte"),
61 MIB_DESC(1, AR8216_STATS_RX128BYTE, "Rx128Byte"),
62 MIB_DESC(1, AR8216_STATS_RX256BYTE, "Rx256Byte"),
63 MIB_DESC(1, AR8216_STATS_RX512BYTE, "Rx512Byte"),
64 MIB_DESC(1, AR8216_STATS_RX1024BYTE, "Rx1024Byte"),
65 MIB_DESC(1, AR8216_STATS_RXMAXBYTE, "RxMaxByte"),
66 MIB_DESC(1, AR8216_STATS_RXTOOLONG, "RxTooLong"),
67 MIB_DESC(2, AR8216_STATS_RXGOODBYTE, "RxGoodByte"),
68 MIB_DESC(2, AR8216_STATS_RXBADBYTE, "RxBadByte"),
69 MIB_DESC(1, AR8216_STATS_RXOVERFLOW, "RxOverFlow"),
70 MIB_DESC(1, AR8216_STATS_FILTERED, "Filtered"),
71 MIB_DESC(1, AR8216_STATS_TXBROAD, "TxBroad"),
72 MIB_DESC(1, AR8216_STATS_TXPAUSE, "TxPause"),
73 MIB_DESC(1, AR8216_STATS_TXMULTI, "TxMulti"),
74 MIB_DESC(1, AR8216_STATS_TXUNDERRUN, "TxUnderRun"),
75 MIB_DESC(1, AR8216_STATS_TX64BYTE, "Tx64Byte"),
76 MIB_DESC(1, AR8216_STATS_TX128BYTE, "Tx128Byte"),
77 MIB_DESC(1, AR8216_STATS_TX256BYTE, "Tx256Byte"),
78 MIB_DESC(1, AR8216_STATS_TX512BYTE, "Tx512Byte"),
79 MIB_DESC(1, AR8216_STATS_TX1024BYTE, "Tx1024Byte"),
80 MIB_DESC(1, AR8216_STATS_TXMAXBYTE, "TxMaxByte"),
81 MIB_DESC(1, AR8216_STATS_TXOVERSIZE, "TxOverSize"),
82 MIB_DESC(2, AR8216_STATS_TXBYTE, "TxByte"),
83 MIB_DESC(1, AR8216_STATS_TXCOLLISION, "TxCollision"),
84 MIB_DESC(1, AR8216_STATS_TXABORTCOL, "TxAbortCol"),
85 MIB_DESC(1, AR8216_STATS_TXMULTICOL, "TxMultiCol"),
86 MIB_DESC(1, AR8216_STATS_TXSINGLECOL, "TxSingleCol"),
87 MIB_DESC(1, AR8216_STATS_TXEXCDEFER, "TxExcDefer"),
88 MIB_DESC(1, AR8216_STATS_TXDEFER, "TxDefer"),
89 MIB_DESC(1, AR8216_STATS_TXLATECOL, "TxLateCol"),
92 const struct ar8xxx_mib_desc ar8236_mibs[39] = {
93 MIB_DESC(1, AR8236_STATS_RXBROAD, "RxBroad"),
94 MIB_DESC(1, AR8236_STATS_RXPAUSE, "RxPause"),
95 MIB_DESC(1, AR8236_STATS_RXMULTI, "RxMulti"),
96 MIB_DESC(1, AR8236_STATS_RXFCSERR, "RxFcsErr"),
97 MIB_DESC(1, AR8236_STATS_RXALIGNERR, "RxAlignErr"),
98 MIB_DESC(1, AR8236_STATS_RXRUNT, "RxRunt"),
99 MIB_DESC(1, AR8236_STATS_RXFRAGMENT, "RxFragment"),
100 MIB_DESC(1, AR8236_STATS_RX64BYTE, "Rx64Byte"),
101 MIB_DESC(1, AR8236_STATS_RX128BYTE, "Rx128Byte"),
102 MIB_DESC(1, AR8236_STATS_RX256BYTE, "Rx256Byte"),
103 MIB_DESC(1, AR8236_STATS_RX512BYTE, "Rx512Byte"),
104 MIB_DESC(1, AR8236_STATS_RX1024BYTE, "Rx1024Byte"),
105 MIB_DESC(1, AR8236_STATS_RX1518BYTE, "Rx1518Byte"),
106 MIB_DESC(1, AR8236_STATS_RXMAXBYTE, "RxMaxByte"),
107 MIB_DESC(1, AR8236_STATS_RXTOOLONG, "RxTooLong"),
108 MIB_DESC(2, AR8236_STATS_RXGOODBYTE, "RxGoodByte"),
109 MIB_DESC(2, AR8236_STATS_RXBADBYTE, "RxBadByte"),
110 MIB_DESC(1, AR8236_STATS_RXOVERFLOW, "RxOverFlow"),
111 MIB_DESC(1, AR8236_STATS_FILTERED, "Filtered"),
112 MIB_DESC(1, AR8236_STATS_TXBROAD, "TxBroad"),
113 MIB_DESC(1, AR8236_STATS_TXPAUSE, "TxPause"),
114 MIB_DESC(1, AR8236_STATS_TXMULTI, "TxMulti"),
115 MIB_DESC(1, AR8236_STATS_TXUNDERRUN, "TxUnderRun"),
116 MIB_DESC(1, AR8236_STATS_TX64BYTE, "Tx64Byte"),
117 MIB_DESC(1, AR8236_STATS_TX128BYTE, "Tx128Byte"),
118 MIB_DESC(1, AR8236_STATS_TX256BYTE, "Tx256Byte"),
119 MIB_DESC(1, AR8236_STATS_TX512BYTE, "Tx512Byte"),
120 MIB_DESC(1, AR8236_STATS_TX1024BYTE, "Tx1024Byte"),
121 MIB_DESC(1, AR8236_STATS_TX1518BYTE, "Tx1518Byte"),
122 MIB_DESC(1, AR8236_STATS_TXMAXBYTE, "TxMaxByte"),
123 MIB_DESC(1, AR8236_STATS_TXOVERSIZE, "TxOverSize"),
124 MIB_DESC(2, AR8236_STATS_TXBYTE, "TxByte"),
125 MIB_DESC(1, AR8236_STATS_TXCOLLISION, "TxCollision"),
126 MIB_DESC(1, AR8236_STATS_TXABORTCOL, "TxAbortCol"),
127 MIB_DESC(1, AR8236_STATS_TXMULTICOL, "TxMultiCol"),
128 MIB_DESC(1, AR8236_STATS_TXSINGLECOL, "TxSingleCol"),
129 MIB_DESC(1, AR8236_STATS_TXEXCDEFER, "TxExcDefer"),
130 MIB_DESC(1, AR8236_STATS_TXDEFER, "TxDefer"),
131 MIB_DESC(1, AR8236_STATS_TXLATECOL, "TxLateCol"),
134 static DEFINE_MUTEX(ar8xxx_dev_list_lock);
135 static LIST_HEAD(ar8xxx_dev_list);
137 /* inspired by phy_poll_reset in drivers/net/phy/phy_device.c */
139 ar8xxx_phy_poll_reset(struct mii_bus *bus)
141 unsigned int sleep_msecs = 20;
144 for (elapsed = sleep_msecs; elapsed <= 600;
145 elapsed += sleep_msecs) {
147 for (i = 0; i < AR8XXX_NUM_PHYS; i++) {
148 ret = mdiobus_read(bus, i, MII_BMCR);
151 if (ret & BMCR_RESET)
153 if (i == AR8XXX_NUM_PHYS - 1) {
154 usleep_range(1000, 2000);
163 ar8xxx_phy_check_aneg(struct phy_device *phydev)
167 if (phydev->autoneg != AUTONEG_ENABLE)
170 * BMCR_ANENABLE might have been cleared
171 * by phy_init_hw in certain kernel versions
172 * therefore check for it
174 ret = phy_read(phydev, MII_BMCR);
177 if (ret & BMCR_ANENABLE)
180 dev_info(&phydev->dev, "ANEG disabled, re-enabling ...\n");
181 ret |= BMCR_ANENABLE | BMCR_ANRESTART;
182 return phy_write(phydev, MII_BMCR, ret);
186 ar8xxx_phy_init(struct ar8xxx_priv *priv)
192 for (i = 0; i < AR8XXX_NUM_PHYS; i++) {
193 if (priv->chip->phy_fixup)
194 priv->chip->phy_fixup(priv, i);
196 /* initialize the port itself */
197 mdiobus_write(bus, i, MII_ADVERTISE,
198 ADVERTISE_ALL | ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM);
199 if (ar8xxx_has_gige(priv))
200 mdiobus_write(bus, i, MII_CTRL1000, ADVERTISE_1000FULL);
201 mdiobus_write(bus, i, MII_BMCR, BMCR_RESET | BMCR_ANENABLE);
204 ar8xxx_phy_poll_reset(bus);
208 ar8xxx_mii_read32(struct ar8xxx_priv *priv, int phy_id, int regnum)
210 struct mii_bus *bus = priv->mii_bus;
213 lo = bus->read(bus, phy_id, regnum);
214 hi = bus->read(bus, phy_id, regnum + 1);
216 return (hi << 16) | lo;
220 ar8xxx_mii_write32(struct ar8xxx_priv *priv, int phy_id, int regnum, u32 val)
222 struct mii_bus *bus = priv->mii_bus;
226 hi = (u16) (val >> 16);
228 if (priv->chip->mii_lo_first)
230 bus->write(bus, phy_id, regnum, lo);
231 bus->write(bus, phy_id, regnum + 1, hi);
233 bus->write(bus, phy_id, regnum + 1, hi);
234 bus->write(bus, phy_id, regnum, lo);
239 ar8xxx_read(struct ar8xxx_priv *priv, int reg)
241 struct mii_bus *bus = priv->mii_bus;
245 split_addr((u32) reg, &r1, &r2, &page);
247 mutex_lock(&bus->mdio_lock);
249 bus->write(bus, 0x18, 0, page);
250 wait_for_page_switch();
251 val = ar8xxx_mii_read32(priv, 0x10 | r2, r1);
253 mutex_unlock(&bus->mdio_lock);
259 ar8xxx_write(struct ar8xxx_priv *priv, int reg, u32 val)
261 struct mii_bus *bus = priv->mii_bus;
264 split_addr((u32) reg, &r1, &r2, &page);
266 mutex_lock(&bus->mdio_lock);
268 bus->write(bus, 0x18, 0, page);
269 wait_for_page_switch();
270 ar8xxx_mii_write32(priv, 0x10 | r2, r1, val);
272 mutex_unlock(&bus->mdio_lock);
276 ar8xxx_rmw(struct ar8xxx_priv *priv, int reg, u32 mask, u32 val)
278 struct mii_bus *bus = priv->mii_bus;
282 split_addr((u32) reg, &r1, &r2, &page);
284 mutex_lock(&bus->mdio_lock);
286 bus->write(bus, 0x18, 0, page);
287 wait_for_page_switch();
289 ret = ar8xxx_mii_read32(priv, 0x10 | r2, r1);
292 ar8xxx_mii_write32(priv, 0x10 | r2, r1, ret);
294 mutex_unlock(&bus->mdio_lock);
300 ar8xxx_phy_dbg_write(struct ar8xxx_priv *priv, int phy_addr,
301 u16 dbg_addr, u16 dbg_data)
303 struct mii_bus *bus = priv->mii_bus;
305 mutex_lock(&bus->mdio_lock);
306 bus->write(bus, phy_addr, MII_ATH_DBG_ADDR, dbg_addr);
307 bus->write(bus, phy_addr, MII_ATH_DBG_DATA, dbg_data);
308 mutex_unlock(&bus->mdio_lock);
312 ar8xxx_phy_mmd_prep(struct mii_bus *bus, int phy_addr, u16 addr, u16 reg)
314 bus->write(bus, phy_addr, MII_ATH_MMD_ADDR, addr);
315 bus->write(bus, phy_addr, MII_ATH_MMD_DATA, reg);
316 bus->write(bus, phy_addr, MII_ATH_MMD_ADDR, addr | 0x4000);
320 ar8xxx_phy_mmd_write(struct ar8xxx_priv *priv, int phy_addr, u16 addr, u16 reg, u16 data)
322 struct mii_bus *bus = priv->mii_bus;
324 mutex_lock(&bus->mdio_lock);
325 ar8xxx_phy_mmd_prep(bus, phy_addr, addr, reg);
326 bus->write(bus, phy_addr, MII_ATH_MMD_DATA, data);
327 mutex_unlock(&bus->mdio_lock);
331 ar8xxx_phy_mmd_read(struct ar8xxx_priv *priv, int phy_addr, u16 addr, u16 reg)
333 struct mii_bus *bus = priv->mii_bus;
336 mutex_lock(&bus->mdio_lock);
337 ar8xxx_phy_mmd_prep(bus, phy_addr, addr, reg);
338 data = bus->read(bus, phy_addr, MII_ATH_MMD_DATA);
339 mutex_unlock(&bus->mdio_lock);
345 ar8xxx_reg_wait(struct ar8xxx_priv *priv, u32 reg, u32 mask, u32 val,
350 for (i = 0; i < timeout; i++) {
353 t = ar8xxx_read(priv, reg);
354 if ((t & mask) == val)
357 usleep_range(1000, 2000);
364 ar8xxx_mib_op(struct ar8xxx_priv *priv, u32 op)
366 unsigned mib_func = priv->chip->mib_func;
369 lockdep_assert_held(&priv->mib_lock);
371 /* Capture the hardware statistics for all ports */
372 ar8xxx_rmw(priv, mib_func, AR8216_MIB_FUNC, (op << AR8216_MIB_FUNC_S));
374 /* Wait for the capturing to complete. */
375 ret = ar8xxx_reg_wait(priv, mib_func, AR8216_MIB_BUSY, 0, 10);
386 ar8xxx_mib_capture(struct ar8xxx_priv *priv)
388 return ar8xxx_mib_op(priv, AR8216_MIB_FUNC_CAPTURE);
392 ar8xxx_mib_flush(struct ar8xxx_priv *priv)
394 return ar8xxx_mib_op(priv, AR8216_MIB_FUNC_FLUSH);
398 ar8xxx_mib_fetch_port_stat(struct ar8xxx_priv *priv, int port, bool flush)
404 WARN_ON(port >= priv->dev.ports);
406 lockdep_assert_held(&priv->mib_lock);
408 base = priv->chip->reg_port_stats_start +
409 priv->chip->reg_port_stats_length * port;
411 mib_stats = &priv->mib_stats[port * priv->chip->num_mibs];
412 for (i = 0; i < priv->chip->num_mibs; i++) {
413 const struct ar8xxx_mib_desc *mib;
416 mib = &priv->chip->mib_decs[i];
417 t = ar8xxx_read(priv, base + mib->offset);
418 if (mib->size == 2) {
421 hi = ar8xxx_read(priv, base + mib->offset + 4);
433 ar8216_read_port_link(struct ar8xxx_priv *priv, int port,
434 struct switch_port_link *link)
439 memset(link, '\0', sizeof(*link));
441 status = priv->chip->read_port_status(priv, port);
443 link->aneg = !!(status & AR8216_PORT_STATUS_LINK_AUTO);
445 link->link = !!(status & AR8216_PORT_STATUS_LINK_UP);
449 if (priv->get_port_link) {
452 err = priv->get_port_link(port);
461 link->duplex = !!(status & AR8216_PORT_STATUS_DUPLEX);
462 link->tx_flow = !!(status & AR8216_PORT_STATUS_TXFLOW);
463 link->rx_flow = !!(status & AR8216_PORT_STATUS_RXFLOW);
465 if (link->aneg && link->duplex && priv->chip->read_port_eee_status)
466 link->eee = priv->chip->read_port_eee_status(priv, port);
468 speed = (status & AR8216_PORT_STATUS_SPEED) >>
469 AR8216_PORT_STATUS_SPEED_S;
472 case AR8216_PORT_SPEED_10M:
473 link->speed = SWITCH_PORT_SPEED_10;
475 case AR8216_PORT_SPEED_100M:
476 link->speed = SWITCH_PORT_SPEED_100;
478 case AR8216_PORT_SPEED_1000M:
479 link->speed = SWITCH_PORT_SPEED_1000;
482 link->speed = SWITCH_PORT_SPEED_UNKNOWN;
487 static struct sk_buff *
488 ar8216_mangle_tx(struct net_device *dev, struct sk_buff *skb)
490 struct ar8xxx_priv *priv = dev->phy_ptr;
499 if (unlikely(skb_headroom(skb) < 2)) {
500 if (pskb_expand_head(skb, 2, 0, GFP_ATOMIC) < 0)
504 buf = skb_push(skb, 2);
512 dev_kfree_skb_any(skb);
517 ar8216_mangle_rx(struct net_device *dev, struct sk_buff *skb)
519 struct ar8xxx_priv *priv;
527 /* don't strip the header if vlan mode is disabled */
531 /* strip header, get vlan id */
535 /* check for vlan header presence */
536 if ((buf[12 + 2] != 0x81) || (buf[13 + 2] != 0x00))
541 /* no need to fix up packets coming from a tagged source */
542 if (priv->vlan_tagged & (1 << port))
545 /* lookup port vid from local table, the switch passes an invalid vlan id */
546 vlan = priv->vlan_id[priv->pvid[port]];
549 buf[14 + 2] |= vlan >> 8;
550 buf[15 + 2] = vlan & 0xff;
554 ar8216_wait_bit(struct ar8xxx_priv *priv, int reg, u32 mask, u32 val)
560 t = ar8xxx_read(priv, reg);
561 if ((t & mask) == val)
570 pr_err("ar8216: timeout on reg %08x: %08x & %08x != %08x\n",
571 (unsigned int) reg, t, mask, val);
576 ar8216_vtu_op(struct ar8xxx_priv *priv, u32 op, u32 val)
578 if (ar8216_wait_bit(priv, AR8216_REG_VTU, AR8216_VTU_ACTIVE, 0))
580 if ((op & AR8216_VTU_OP) == AR8216_VTU_OP_LOAD) {
581 val &= AR8216_VTUDATA_MEMBER;
582 val |= AR8216_VTUDATA_VALID;
583 ar8xxx_write(priv, AR8216_REG_VTU_DATA, val);
585 op |= AR8216_VTU_ACTIVE;
586 ar8xxx_write(priv, AR8216_REG_VTU, op);
590 ar8216_vtu_flush(struct ar8xxx_priv *priv)
592 ar8216_vtu_op(priv, AR8216_VTU_OP_FLUSH, 0);
596 ar8216_vtu_load_vlan(struct ar8xxx_priv *priv, u32 vid, u32 port_mask)
600 op = AR8216_VTU_OP_LOAD | (vid << AR8216_VTU_VID_S);
601 ar8216_vtu_op(priv, op, port_mask);
605 ar8216_atu_flush(struct ar8xxx_priv *priv)
609 ret = ar8216_wait_bit(priv, AR8216_REG_ATU_FUNC0, AR8216_ATU_ACTIVE, 0);
611 ar8xxx_write(priv, AR8216_REG_ATU_FUNC0, AR8216_ATU_OP_FLUSH |
618 ar8216_atu_flush_port(struct ar8xxx_priv *priv, int port)
623 ret = ar8216_wait_bit(priv, AR8216_REG_ATU_FUNC0, AR8216_ATU_ACTIVE, 0);
625 t = (port << AR8216_ATU_PORT_NUM_S) | AR8216_ATU_OP_FLUSH_PORT;
626 t |= AR8216_ATU_ACTIVE;
627 ar8xxx_write(priv, AR8216_REG_ATU_FUNC0, t);
634 ar8216_read_port_status(struct ar8xxx_priv *priv, int port)
636 return ar8xxx_read(priv, AR8216_REG_PORT_STATUS(port));
640 ar8216_setup_port(struct ar8xxx_priv *priv, int port, u32 members)
647 pvid = priv->vlan_id[priv->pvid[port]];
648 if (priv->vlan_tagged & (1 << port))
649 egress = AR8216_OUT_ADD_VLAN;
651 egress = AR8216_OUT_STRIP_VLAN;
652 ingress = AR8216_IN_SECURE;
655 egress = AR8216_OUT_KEEP;
656 ingress = AR8216_IN_PORT_ONLY;
659 if (chip_is_ar8216(priv) && priv->vlan && port == AR8216_PORT_CPU)
660 header = AR8216_PORT_CTRL_HEADER;
664 ar8xxx_rmw(priv, AR8216_REG_PORT_CTRL(port),
665 AR8216_PORT_CTRL_LEARN | AR8216_PORT_CTRL_VLAN_MODE |
666 AR8216_PORT_CTRL_SINGLE_VLAN | AR8216_PORT_CTRL_STATE |
667 AR8216_PORT_CTRL_HEADER | AR8216_PORT_CTRL_LEARN_LOCK,
668 AR8216_PORT_CTRL_LEARN | header |
669 (egress << AR8216_PORT_CTRL_VLAN_MODE_S) |
670 (AR8216_PORT_STATE_FORWARD << AR8216_PORT_CTRL_STATE_S));
672 ar8xxx_rmw(priv, AR8216_REG_PORT_VLAN(port),
673 AR8216_PORT_VLAN_DEST_PORTS | AR8216_PORT_VLAN_MODE |
674 AR8216_PORT_VLAN_DEFAULT_ID,
675 (members << AR8216_PORT_VLAN_DEST_PORTS_S) |
676 (ingress << AR8216_PORT_VLAN_MODE_S) |
677 (pvid << AR8216_PORT_VLAN_DEFAULT_ID_S));
681 ar8216_hw_init(struct ar8xxx_priv *priv)
683 if (priv->initialized)
686 ar8xxx_phy_init(priv);
688 priv->initialized = true;
693 ar8216_init_globals(struct ar8xxx_priv *priv)
695 /* standard atheros magic */
696 ar8xxx_write(priv, 0x38, 0xc000050e);
698 ar8xxx_rmw(priv, AR8216_REG_GLOBAL_CTRL,
699 AR8216_GCTRL_MTU, 1518 + 8 + 2);
703 ar8216_init_port(struct ar8xxx_priv *priv, int port)
705 /* Enable port learning and tx */
706 ar8xxx_write(priv, AR8216_REG_PORT_CTRL(port),
707 AR8216_PORT_CTRL_LEARN |
708 (4 << AR8216_PORT_CTRL_STATE_S));
710 ar8xxx_write(priv, AR8216_REG_PORT_VLAN(port), 0);
712 if (port == AR8216_PORT_CPU) {
713 ar8xxx_write(priv, AR8216_REG_PORT_STATUS(port),
714 AR8216_PORT_STATUS_LINK_UP |
715 (ar8xxx_has_gige(priv) ?
716 AR8216_PORT_SPEED_1000M : AR8216_PORT_SPEED_100M) |
717 AR8216_PORT_STATUS_TXMAC |
718 AR8216_PORT_STATUS_RXMAC |
719 (chip_is_ar8316(priv) ? AR8216_PORT_STATUS_RXFLOW : 0) |
720 (chip_is_ar8316(priv) ? AR8216_PORT_STATUS_TXFLOW : 0) |
721 AR8216_PORT_STATUS_DUPLEX);
723 ar8xxx_write(priv, AR8216_REG_PORT_STATUS(port),
724 AR8216_PORT_STATUS_LINK_AUTO);
729 ar8216_wait_atu_ready(struct ar8xxx_priv *priv, u16 r2, u16 r1)
733 while (ar8xxx_mii_read32(priv, r2, r1) & AR8216_ATU_ACTIVE && --timeout)
737 pr_err("ar8216: timeout waiting for atu to become ready\n");
740 static void ar8216_get_arl_entry(struct ar8xxx_priv *priv,
741 struct arl_entry *a, u32 *status, enum arl_op op)
743 struct mii_bus *bus = priv->mii_bus;
745 u16 r1_func0, r1_func1, r1_func2;
746 u32 t, val0, val1, val2;
749 split_addr(AR8216_REG_ATU_FUNC0, &r1_func0, &r2, &page);
752 r1_func1 = (AR8216_REG_ATU_FUNC1 >> 1) & 0x1e;
753 r1_func2 = (AR8216_REG_ATU_FUNC2 >> 1) & 0x1e;
756 case AR8XXX_ARL_INITIALIZE:
757 /* all ATU registers are on the same page
758 * therefore set page only once
760 bus->write(bus, 0x18, 0, page);
761 wait_for_page_switch();
763 ar8216_wait_atu_ready(priv, r2, r1_func0);
765 ar8xxx_mii_write32(priv, r2, r1_func0, AR8216_ATU_OP_GET_NEXT);
766 ar8xxx_mii_write32(priv, r2, r1_func1, 0);
767 ar8xxx_mii_write32(priv, r2, r1_func2, 0);
769 case AR8XXX_ARL_GET_NEXT:
770 t = ar8xxx_mii_read32(priv, r2, r1_func0);
771 t |= AR8216_ATU_ACTIVE;
772 ar8xxx_mii_write32(priv, r2, r1_func0, t);
773 ar8216_wait_atu_ready(priv, r2, r1_func0);
775 val0 = ar8xxx_mii_read32(priv, r2, r1_func0);
776 val1 = ar8xxx_mii_read32(priv, r2, r1_func1);
777 val2 = ar8xxx_mii_read32(priv, r2, r1_func2);
779 *status = (val2 & AR8216_ATU_STATUS) >> AR8216_ATU_STATUS_S;
784 t = AR8216_ATU_PORT0;
785 while (!(val2 & t) && ++i < priv->dev.ports)
789 a->mac[0] = (val0 & AR8216_ATU_ADDR5) >> AR8216_ATU_ADDR5_S;
790 a->mac[1] = (val0 & AR8216_ATU_ADDR4) >> AR8216_ATU_ADDR4_S;
791 a->mac[2] = (val1 & AR8216_ATU_ADDR3) >> AR8216_ATU_ADDR3_S;
792 a->mac[3] = (val1 & AR8216_ATU_ADDR2) >> AR8216_ATU_ADDR2_S;
793 a->mac[4] = (val1 & AR8216_ATU_ADDR1) >> AR8216_ATU_ADDR1_S;
794 a->mac[5] = (val1 & AR8216_ATU_ADDR0) >> AR8216_ATU_ADDR0_S;
800 ar8236_setup_port(struct ar8xxx_priv *priv, int port, u32 members)
806 pvid = priv->vlan_id[priv->pvid[port]];
807 if (priv->vlan_tagged & (1 << port))
808 egress = AR8216_OUT_ADD_VLAN;
810 egress = AR8216_OUT_STRIP_VLAN;
811 ingress = AR8216_IN_SECURE;
814 egress = AR8216_OUT_KEEP;
815 ingress = AR8216_IN_PORT_ONLY;
818 ar8xxx_rmw(priv, AR8216_REG_PORT_CTRL(port),
819 AR8216_PORT_CTRL_LEARN | AR8216_PORT_CTRL_VLAN_MODE |
820 AR8216_PORT_CTRL_SINGLE_VLAN | AR8216_PORT_CTRL_STATE |
821 AR8216_PORT_CTRL_HEADER | AR8216_PORT_CTRL_LEARN_LOCK,
822 AR8216_PORT_CTRL_LEARN |
823 (egress << AR8216_PORT_CTRL_VLAN_MODE_S) |
824 (AR8216_PORT_STATE_FORWARD << AR8216_PORT_CTRL_STATE_S));
826 ar8xxx_rmw(priv, AR8236_REG_PORT_VLAN(port),
827 AR8236_PORT_VLAN_DEFAULT_ID,
828 (pvid << AR8236_PORT_VLAN_DEFAULT_ID_S));
830 ar8xxx_rmw(priv, AR8236_REG_PORT_VLAN2(port),
831 AR8236_PORT_VLAN2_VLAN_MODE |
832 AR8236_PORT_VLAN2_MEMBER,
833 (ingress << AR8236_PORT_VLAN2_VLAN_MODE_S) |
834 (members << AR8236_PORT_VLAN2_MEMBER_S));
838 ar8236_init_globals(struct ar8xxx_priv *priv)
840 /* enable jumbo frames */
841 ar8xxx_rmw(priv, AR8216_REG_GLOBAL_CTRL,
842 AR8316_GCTRL_MTU, 9018 + 8 + 2);
844 /* enable cpu port to receive arp frames */
845 ar8xxx_reg_set(priv, AR8216_REG_ATU_CTRL,
846 AR8236_ATU_CTRL_RES);
848 /* enable cpu port to receive multicast and broadcast frames */
849 ar8xxx_reg_set(priv, AR8216_REG_FLOOD_MASK,
850 AR8236_FM_CPU_BROADCAST_EN | AR8236_FM_CPU_BCAST_FWD_EN);
852 /* Enable MIB counters */
853 ar8xxx_rmw(priv, AR8216_REG_MIB_FUNC, AR8216_MIB_FUNC | AR8236_MIB_EN,
854 (AR8216_MIB_FUNC_NO_OP << AR8216_MIB_FUNC_S) |
859 ar8316_hw_init(struct ar8xxx_priv *priv)
863 val = ar8xxx_read(priv, AR8316_REG_POSTRIP);
865 if (priv->phy->interface == PHY_INTERFACE_MODE_RGMII) {
866 if (priv->port4_phy) {
867 /* value taken from Ubiquiti RouterStation Pro */
869 pr_info("ar8316: Using port 4 as PHY\n");
872 pr_info("ar8316: Using port 4 as switch port\n");
874 } else if (priv->phy->interface == PHY_INTERFACE_MODE_GMII) {
875 /* value taken from AVM Fritz!Box 7390 sources */
878 /* no known value for phy interface */
879 pr_err("ar8316: unsupported mii mode: %d.\n",
880 priv->phy->interface);
887 ar8xxx_write(priv, AR8316_REG_POSTRIP, newval);
889 if (priv->port4_phy &&
890 priv->phy->interface == PHY_INTERFACE_MODE_RGMII) {
891 /* work around for phy4 rgmii mode */
892 ar8xxx_phy_dbg_write(priv, 4, 0x12, 0x480c);
894 ar8xxx_phy_dbg_write(priv, 4, 0x0, 0x824e);
896 ar8xxx_phy_dbg_write(priv, 4, 0x5, 0x3d47);
900 ar8xxx_phy_init(priv);
903 priv->initialized = true;
908 ar8316_init_globals(struct ar8xxx_priv *priv)
910 /* standard atheros magic */
911 ar8xxx_write(priv, 0x38, 0xc000050e);
913 /* enable cpu port to receive multicast and broadcast frames */
914 ar8xxx_write(priv, AR8216_REG_FLOOD_MASK, 0x003f003f);
916 /* enable jumbo frames */
917 ar8xxx_rmw(priv, AR8216_REG_GLOBAL_CTRL,
918 AR8316_GCTRL_MTU, 9018 + 8 + 2);
920 /* Enable MIB counters */
921 ar8xxx_rmw(priv, AR8216_REG_MIB_FUNC, AR8216_MIB_FUNC | AR8236_MIB_EN,
922 (AR8216_MIB_FUNC_NO_OP << AR8216_MIB_FUNC_S) |
927 ar8xxx_sw_set_vlan(struct switch_dev *dev, const struct switch_attr *attr,
928 struct switch_val *val)
930 struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev);
931 priv->vlan = !!val->value.i;
936 ar8xxx_sw_get_vlan(struct switch_dev *dev, const struct switch_attr *attr,
937 struct switch_val *val)
939 struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev);
940 val->value.i = priv->vlan;
946 ar8xxx_sw_set_pvid(struct switch_dev *dev, int port, int vlan)
948 struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev);
950 /* make sure no invalid PVIDs get set */
952 if (vlan < 0 || vlan >= dev->vlans ||
953 port < 0 || port >= AR8X16_MAX_PORTS)
956 priv->pvid[port] = vlan;
961 ar8xxx_sw_get_pvid(struct switch_dev *dev, int port, int *vlan)
963 struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev);
965 if (port < 0 || port >= AR8X16_MAX_PORTS)
968 *vlan = priv->pvid[port];
973 ar8xxx_sw_set_vid(struct switch_dev *dev, const struct switch_attr *attr,
974 struct switch_val *val)
976 struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev);
978 if (val->port_vlan >= AR8X16_MAX_VLANS)
981 priv->vlan_id[val->port_vlan] = val->value.i;
986 ar8xxx_sw_get_vid(struct switch_dev *dev, const struct switch_attr *attr,
987 struct switch_val *val)
989 struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev);
990 val->value.i = priv->vlan_id[val->port_vlan];
995 ar8xxx_sw_get_port_link(struct switch_dev *dev, int port,
996 struct switch_port_link *link)
998 struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev);
1000 ar8216_read_port_link(priv, port, link);
1005 ar8xxx_sw_get_ports(struct switch_dev *dev, struct switch_val *val)
1007 struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev);
1011 if (val->port_vlan >= AR8X16_MAX_VLANS)
1014 ports = priv->vlan_table[val->port_vlan];
1016 for (i = 0; i < dev->ports; i++) {
1017 struct switch_port *p;
1019 if (!(ports & (1 << i)))
1022 p = &val->value.ports[val->len++];
1024 if (priv->vlan_tagged & (1 << i))
1025 p->flags = (1 << SWITCH_PORT_FLAG_TAGGED);
1033 ar8xxx_sw_set_ports(struct switch_dev *dev, struct switch_val *val)
1035 struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev);
1036 u8 *vt = &priv->vlan_table[val->port_vlan];
1040 for (i = 0; i < val->len; i++) {
1041 struct switch_port *p = &val->value.ports[i];
1043 if (p->flags & (1 << SWITCH_PORT_FLAG_TAGGED)) {
1044 priv->vlan_tagged |= (1 << p->id);
1046 priv->vlan_tagged &= ~(1 << p->id);
1047 priv->pvid[p->id] = val->port_vlan;
1049 /* make sure that an untagged port does not
1050 * appear in other vlans */
1051 for (j = 0; j < AR8X16_MAX_VLANS; j++) {
1052 if (j == val->port_vlan)
1054 priv->vlan_table[j] &= ~(1 << p->id);
1064 ar8216_set_mirror_regs(struct ar8xxx_priv *priv)
1068 /* reset all mirror registers */
1069 ar8xxx_rmw(priv, AR8216_REG_GLOBAL_CPUPORT,
1070 AR8216_GLOBAL_CPUPORT_MIRROR_PORT,
1071 (0xF << AR8216_GLOBAL_CPUPORT_MIRROR_PORT_S));
1072 for (port = 0; port < AR8216_NUM_PORTS; port++) {
1073 ar8xxx_reg_clear(priv, AR8216_REG_PORT_CTRL(port),
1074 AR8216_PORT_CTRL_MIRROR_RX);
1076 ar8xxx_reg_clear(priv, AR8216_REG_PORT_CTRL(port),
1077 AR8216_PORT_CTRL_MIRROR_TX);
1080 /* now enable mirroring if necessary */
1081 if (priv->source_port >= AR8216_NUM_PORTS ||
1082 priv->monitor_port >= AR8216_NUM_PORTS ||
1083 priv->source_port == priv->monitor_port) {
1087 ar8xxx_rmw(priv, AR8216_REG_GLOBAL_CPUPORT,
1088 AR8216_GLOBAL_CPUPORT_MIRROR_PORT,
1089 (priv->monitor_port << AR8216_GLOBAL_CPUPORT_MIRROR_PORT_S));
1091 if (priv->mirror_rx)
1092 ar8xxx_reg_set(priv, AR8216_REG_PORT_CTRL(priv->source_port),
1093 AR8216_PORT_CTRL_MIRROR_RX);
1095 if (priv->mirror_tx)
1096 ar8xxx_reg_set(priv, AR8216_REG_PORT_CTRL(priv->source_port),
1097 AR8216_PORT_CTRL_MIRROR_TX);
1101 ar8xxx_age_time_val(int age_time)
1103 return (age_time + AR8XXX_REG_ARL_CTRL_AGE_TIME_SECS / 2) /
1104 AR8XXX_REG_ARL_CTRL_AGE_TIME_SECS;
1108 ar8xxx_set_age_time(struct ar8xxx_priv *priv, int reg)
1110 u32 age_time = ar8xxx_age_time_val(priv->arl_age_time);
1111 ar8xxx_rmw(priv, reg, AR8216_ATU_CTRL_AGE_TIME, age_time << AR8216_ATU_CTRL_AGE_TIME_S);
1115 ar8xxx_sw_hw_apply(struct switch_dev *dev)
1117 struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev);
1118 const struct ar8xxx_chip *chip = priv->chip;
1119 u8 portmask[AR8X16_MAX_PORTS];
1122 mutex_lock(&priv->reg_mutex);
1123 /* flush all vlan translation unit entries */
1124 priv->chip->vtu_flush(priv);
1126 memset(portmask, 0, sizeof(portmask));
1128 /* calculate the port destination masks and load vlans
1129 * into the vlan translation unit */
1130 for (j = 0; j < AR8X16_MAX_VLANS; j++) {
1131 u8 vp = priv->vlan_table[j];
1136 for (i = 0; i < dev->ports; i++) {
1139 portmask[i] |= vp & ~mask;
1142 chip->vtu_load_vlan(priv, priv->vlan_id[j],
1143 priv->vlan_table[j]);
1147 * isolate all ports, but connect them to the cpu port */
1148 for (i = 0; i < dev->ports; i++) {
1149 if (i == AR8216_PORT_CPU)
1152 portmask[i] = 1 << AR8216_PORT_CPU;
1153 portmask[AR8216_PORT_CPU] |= (1 << i);
1157 /* update the port destination mask registers and tag settings */
1158 for (i = 0; i < dev->ports; i++) {
1159 chip->setup_port(priv, i, portmask[i]);
1162 chip->set_mirror_regs(priv);
1165 if (chip->reg_arl_ctrl)
1166 ar8xxx_set_age_time(priv, chip->reg_arl_ctrl);
1168 mutex_unlock(&priv->reg_mutex);
1173 ar8xxx_sw_reset_switch(struct switch_dev *dev)
1175 struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev);
1176 const struct ar8xxx_chip *chip = priv->chip;
1179 mutex_lock(&priv->reg_mutex);
1180 memset(&priv->vlan, 0, sizeof(struct ar8xxx_priv) -
1181 offsetof(struct ar8xxx_priv, vlan));
1183 for (i = 0; i < AR8X16_MAX_VLANS; i++)
1184 priv->vlan_id[i] = i;
1186 /* Configure all ports */
1187 for (i = 0; i < dev->ports; i++)
1188 chip->init_port(priv, i);
1190 priv->mirror_rx = false;
1191 priv->mirror_tx = false;
1192 priv->source_port = 0;
1193 priv->monitor_port = 0;
1194 priv->arl_age_time = AR8XXX_DEFAULT_ARL_AGE_TIME;
1196 chip->init_globals(priv);
1197 chip->atu_flush(priv);
1199 mutex_unlock(&priv->reg_mutex);
1201 return chip->sw_hw_apply(dev);
1205 ar8xxx_sw_set_reset_mibs(struct switch_dev *dev,
1206 const struct switch_attr *attr,
1207 struct switch_val *val)
1209 struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev);
1213 if (!ar8xxx_has_mib_counters(priv))
1216 mutex_lock(&priv->mib_lock);
1218 len = priv->dev.ports * priv->chip->num_mibs *
1219 sizeof(*priv->mib_stats);
1220 memset(priv->mib_stats, '\0', len);
1221 ret = ar8xxx_mib_flush(priv);
1228 mutex_unlock(&priv->mib_lock);
1233 ar8xxx_sw_set_mirror_rx_enable(struct switch_dev *dev,
1234 const struct switch_attr *attr,
1235 struct switch_val *val)
1237 struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev);
1239 mutex_lock(&priv->reg_mutex);
1240 priv->mirror_rx = !!val->value.i;
1241 priv->chip->set_mirror_regs(priv);
1242 mutex_unlock(&priv->reg_mutex);
1248 ar8xxx_sw_get_mirror_rx_enable(struct switch_dev *dev,
1249 const struct switch_attr *attr,
1250 struct switch_val *val)
1252 struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev);
1253 val->value.i = priv->mirror_rx;
1258 ar8xxx_sw_set_mirror_tx_enable(struct switch_dev *dev,
1259 const struct switch_attr *attr,
1260 struct switch_val *val)
1262 struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev);
1264 mutex_lock(&priv->reg_mutex);
1265 priv->mirror_tx = !!val->value.i;
1266 priv->chip->set_mirror_regs(priv);
1267 mutex_unlock(&priv->reg_mutex);
1273 ar8xxx_sw_get_mirror_tx_enable(struct switch_dev *dev,
1274 const struct switch_attr *attr,
1275 struct switch_val *val)
1277 struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev);
1278 val->value.i = priv->mirror_tx;
1283 ar8xxx_sw_set_mirror_monitor_port(struct switch_dev *dev,
1284 const struct switch_attr *attr,
1285 struct switch_val *val)
1287 struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev);
1289 mutex_lock(&priv->reg_mutex);
1290 priv->monitor_port = val->value.i;
1291 priv->chip->set_mirror_regs(priv);
1292 mutex_unlock(&priv->reg_mutex);
1298 ar8xxx_sw_get_mirror_monitor_port(struct switch_dev *dev,
1299 const struct switch_attr *attr,
1300 struct switch_val *val)
1302 struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev);
1303 val->value.i = priv->monitor_port;
1308 ar8xxx_sw_set_mirror_source_port(struct switch_dev *dev,
1309 const struct switch_attr *attr,
1310 struct switch_val *val)
1312 struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev);
1314 mutex_lock(&priv->reg_mutex);
1315 priv->source_port = val->value.i;
1316 priv->chip->set_mirror_regs(priv);
1317 mutex_unlock(&priv->reg_mutex);
1323 ar8xxx_sw_get_mirror_source_port(struct switch_dev *dev,
1324 const struct switch_attr *attr,
1325 struct switch_val *val)
1327 struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev);
1328 val->value.i = priv->source_port;
1333 ar8xxx_sw_set_port_reset_mib(struct switch_dev *dev,
1334 const struct switch_attr *attr,
1335 struct switch_val *val)
1337 struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev);
1341 if (!ar8xxx_has_mib_counters(priv))
1344 port = val->port_vlan;
1345 if (port >= dev->ports)
1348 mutex_lock(&priv->mib_lock);
1349 ret = ar8xxx_mib_capture(priv);
1353 ar8xxx_mib_fetch_port_stat(priv, port, true);
1358 mutex_unlock(&priv->mib_lock);
1363 ar8xxx_byte_to_str(char *buf, int len, u64 byte)
1368 if (byte >= 0x40000000) { /* 1 GiB */
1369 b = byte * 10 / 0x40000000;
1371 } else if (byte >= 0x100000) { /* 1 MiB */
1372 b = byte * 10 / 0x100000;
1374 } else if (byte >= 0x400) { /* 1 KiB */
1375 b = byte * 10 / 0x400;
1381 if (strcmp(unit, "Byte"))
1382 snprintf(buf, len, "%lu.%lu %s", b / 10, b % 10, unit);
1384 snprintf(buf, len, "%lu %s", b, unit);
1388 ar8xxx_sw_get_port_mib(struct switch_dev *dev,
1389 const struct switch_attr *attr,
1390 struct switch_val *val)
1392 struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev);
1393 const struct ar8xxx_chip *chip = priv->chip;
1394 u64 *mib_stats, mib_data;
1397 char *buf = priv->buf;
1399 const char *mib_name;
1401 bool mib_stats_empty = true;
1403 if (!ar8xxx_has_mib_counters(priv))
1406 port = val->port_vlan;
1407 if (port >= dev->ports)
1410 mutex_lock(&priv->mib_lock);
1411 ret = ar8xxx_mib_capture(priv);
1415 ar8xxx_mib_fetch_port_stat(priv, port, false);
1417 len += snprintf(buf + len, sizeof(priv->buf) - len,
1420 mib_stats = &priv->mib_stats[port * chip->num_mibs];
1421 for (i = 0; i < chip->num_mibs; i++) {
1422 mib_name = chip->mib_decs[i].name;
1423 mib_data = mib_stats[i];
1424 len += snprintf(buf + len, sizeof(priv->buf) - len,
1425 "%-12s: %llu\n", mib_name, mib_data);
1426 if ((!strcmp(mib_name, "TxByte") ||
1427 !strcmp(mib_name, "RxGoodByte")) &&
1429 ar8xxx_byte_to_str(buf1, sizeof(buf1), mib_data);
1430 --len; /* discard newline at the end of buf */
1431 len += snprintf(buf + len, sizeof(priv->buf) - len,
1434 if (mib_stats_empty && mib_data)
1435 mib_stats_empty = false;
1438 if (mib_stats_empty)
1439 len = snprintf(buf, sizeof(priv->buf), "No MIB data");
1447 mutex_unlock(&priv->mib_lock);
1452 ar8xxx_sw_set_arl_age_time(struct switch_dev *dev, const struct switch_attr *attr,
1453 struct switch_val *val)
1455 struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev);
1456 int age_time = val->value.i;
1462 age_time_val = ar8xxx_age_time_val(age_time);
1463 if (age_time_val == 0 || age_time_val > 0xffff)
1466 priv->arl_age_time = age_time;
1471 ar8xxx_sw_get_arl_age_time(struct switch_dev *dev, const struct switch_attr *attr,
1472 struct switch_val *val)
1474 struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev);
1475 val->value.i = priv->arl_age_time;
1480 ar8xxx_sw_get_arl_table(struct switch_dev *dev,
1481 const struct switch_attr *attr,
1482 struct switch_val *val)
1484 struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev);
1485 struct mii_bus *bus = priv->mii_bus;
1486 const struct ar8xxx_chip *chip = priv->chip;
1487 char *buf = priv->arl_buf;
1488 int i, j, k, len = 0;
1489 struct arl_entry *a, *a1;
1492 if (!chip->get_arl_entry)
1495 mutex_lock(&priv->reg_mutex);
1496 mutex_lock(&bus->mdio_lock);
1498 chip->get_arl_entry(priv, NULL, NULL, AR8XXX_ARL_INITIALIZE);
1500 for(i = 0; i < AR8XXX_NUM_ARL_RECORDS; ++i) {
1501 a = &priv->arl_table[i];
1503 chip->get_arl_entry(priv, a, &status, AR8XXX_ARL_GET_NEXT);
1509 * ARL table can include multiple valid entries
1510 * per MAC, just with differing status codes
1512 for (j = 0; j < i; ++j) {
1513 a1 = &priv->arl_table[j];
1514 if (a->port == a1->port && !memcmp(a->mac, a1->mac, sizeof(a->mac)))
1519 mutex_unlock(&bus->mdio_lock);
1521 len += snprintf(buf + len, sizeof(priv->arl_buf) - len,
1522 "address resolution table\n");
1524 if (i == AR8XXX_NUM_ARL_RECORDS)
1525 len += snprintf(buf + len, sizeof(priv->arl_buf) - len,
1526 "Too many entries found, displaying the first %d only!\n",
1527 AR8XXX_NUM_ARL_RECORDS);
1529 for (j = 0; j < priv->dev.ports; ++j) {
1530 for (k = 0; k < i; ++k) {
1531 a = &priv->arl_table[k];
1534 len += snprintf(buf + len, sizeof(priv->arl_buf) - len,
1535 "Port %d: MAC %02x:%02x:%02x:%02x:%02x:%02x\n",
1537 a->mac[5], a->mac[4], a->mac[3],
1538 a->mac[2], a->mac[1], a->mac[0]);
1545 mutex_unlock(&priv->reg_mutex);
1551 ar8xxx_sw_set_flush_arl_table(struct switch_dev *dev,
1552 const struct switch_attr *attr,
1553 struct switch_val *val)
1555 struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev);
1558 mutex_lock(&priv->reg_mutex);
1559 ret = priv->chip->atu_flush(priv);
1560 mutex_unlock(&priv->reg_mutex);
1566 ar8xxx_sw_set_flush_port_arl_table(struct switch_dev *dev,
1567 const struct switch_attr *attr,
1568 struct switch_val *val)
1570 struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev);
1573 port = val->port_vlan;
1574 if (port >= dev->ports)
1577 mutex_lock(&priv->reg_mutex);
1578 ret = priv->chip->atu_flush_port(priv, port);
1579 mutex_unlock(&priv->reg_mutex);
1584 static const struct switch_attr ar8xxx_sw_attr_globals[] = {
1586 .type = SWITCH_TYPE_INT,
1587 .name = "enable_vlan",
1588 .description = "Enable VLAN mode",
1589 .set = ar8xxx_sw_set_vlan,
1590 .get = ar8xxx_sw_get_vlan,
1594 .type = SWITCH_TYPE_NOVAL,
1595 .name = "reset_mibs",
1596 .description = "Reset all MIB counters",
1597 .set = ar8xxx_sw_set_reset_mibs,
1600 .type = SWITCH_TYPE_INT,
1601 .name = "enable_mirror_rx",
1602 .description = "Enable mirroring of RX packets",
1603 .set = ar8xxx_sw_set_mirror_rx_enable,
1604 .get = ar8xxx_sw_get_mirror_rx_enable,
1608 .type = SWITCH_TYPE_INT,
1609 .name = "enable_mirror_tx",
1610 .description = "Enable mirroring of TX packets",
1611 .set = ar8xxx_sw_set_mirror_tx_enable,
1612 .get = ar8xxx_sw_get_mirror_tx_enable,
1616 .type = SWITCH_TYPE_INT,
1617 .name = "mirror_monitor_port",
1618 .description = "Mirror monitor port",
1619 .set = ar8xxx_sw_set_mirror_monitor_port,
1620 .get = ar8xxx_sw_get_mirror_monitor_port,
1621 .max = AR8216_NUM_PORTS - 1
1624 .type = SWITCH_TYPE_INT,
1625 .name = "mirror_source_port",
1626 .description = "Mirror source port",
1627 .set = ar8xxx_sw_set_mirror_source_port,
1628 .get = ar8xxx_sw_get_mirror_source_port,
1629 .max = AR8216_NUM_PORTS - 1
1632 .type = SWITCH_TYPE_STRING,
1633 .name = "arl_table",
1634 .description = "Get ARL table",
1636 .get = ar8xxx_sw_get_arl_table,
1639 .type = SWITCH_TYPE_NOVAL,
1640 .name = "flush_arl_table",
1641 .description = "Flush ARL table",
1642 .set = ar8xxx_sw_set_flush_arl_table,
1646 const struct switch_attr ar8xxx_sw_attr_port[] = {
1648 .type = SWITCH_TYPE_NOVAL,
1649 .name = "reset_mib",
1650 .description = "Reset single port MIB counters",
1651 .set = ar8xxx_sw_set_port_reset_mib,
1654 .type = SWITCH_TYPE_STRING,
1656 .description = "Get port's MIB counters",
1658 .get = ar8xxx_sw_get_port_mib,
1661 .type = SWITCH_TYPE_NOVAL,
1662 .name = "flush_arl_table",
1663 .description = "Flush port's ARL table entries",
1664 .set = ar8xxx_sw_set_flush_port_arl_table,
1668 const struct switch_attr ar8xxx_sw_attr_vlan[1] = {
1670 .type = SWITCH_TYPE_INT,
1672 .description = "VLAN ID (0-4094)",
1673 .set = ar8xxx_sw_set_vid,
1674 .get = ar8xxx_sw_get_vid,
1679 static const struct switch_dev_ops ar8xxx_sw_ops = {
1681 .attr = ar8xxx_sw_attr_globals,
1682 .n_attr = ARRAY_SIZE(ar8xxx_sw_attr_globals),
1685 .attr = ar8xxx_sw_attr_port,
1686 .n_attr = ARRAY_SIZE(ar8xxx_sw_attr_port),
1689 .attr = ar8xxx_sw_attr_vlan,
1690 .n_attr = ARRAY_SIZE(ar8xxx_sw_attr_vlan),
1692 .get_port_pvid = ar8xxx_sw_get_pvid,
1693 .set_port_pvid = ar8xxx_sw_set_pvid,
1694 .get_vlan_ports = ar8xxx_sw_get_ports,
1695 .set_vlan_ports = ar8xxx_sw_set_ports,
1696 .apply_config = ar8xxx_sw_hw_apply,
1697 .reset_switch = ar8xxx_sw_reset_switch,
1698 .get_port_link = ar8xxx_sw_get_port_link,
1701 static const struct ar8xxx_chip ar8216_chip = {
1702 .caps = AR8XXX_CAP_MIB_COUNTERS,
1704 .reg_port_stats_start = 0x19000,
1705 .reg_port_stats_length = 0xa0,
1706 .reg_arl_ctrl = AR8216_REG_ATU_CTRL,
1708 .name = "Atheros AR8216",
1709 .ports = AR8216_NUM_PORTS,
1710 .vlans = AR8216_NUM_VLANS,
1711 .swops = &ar8xxx_sw_ops,
1713 .hw_init = ar8216_hw_init,
1714 .init_globals = ar8216_init_globals,
1715 .init_port = ar8216_init_port,
1716 .setup_port = ar8216_setup_port,
1717 .read_port_status = ar8216_read_port_status,
1718 .atu_flush = ar8216_atu_flush,
1719 .atu_flush_port = ar8216_atu_flush_port,
1720 .vtu_flush = ar8216_vtu_flush,
1721 .vtu_load_vlan = ar8216_vtu_load_vlan,
1722 .set_mirror_regs = ar8216_set_mirror_regs,
1723 .get_arl_entry = ar8216_get_arl_entry,
1724 .sw_hw_apply = ar8xxx_sw_hw_apply,
1726 .num_mibs = ARRAY_SIZE(ar8216_mibs),
1727 .mib_decs = ar8216_mibs,
1728 .mib_func = AR8216_REG_MIB_FUNC
1731 static const struct ar8xxx_chip ar8236_chip = {
1732 .caps = AR8XXX_CAP_MIB_COUNTERS,
1734 .reg_port_stats_start = 0x20000,
1735 .reg_port_stats_length = 0x100,
1736 .reg_arl_ctrl = AR8216_REG_ATU_CTRL,
1738 .name = "Atheros AR8236",
1739 .ports = AR8216_NUM_PORTS,
1740 .vlans = AR8216_NUM_VLANS,
1741 .swops = &ar8xxx_sw_ops,
1743 .hw_init = ar8216_hw_init,
1744 .init_globals = ar8236_init_globals,
1745 .init_port = ar8216_init_port,
1746 .setup_port = ar8236_setup_port,
1747 .read_port_status = ar8216_read_port_status,
1748 .atu_flush = ar8216_atu_flush,
1749 .atu_flush_port = ar8216_atu_flush_port,
1750 .vtu_flush = ar8216_vtu_flush,
1751 .vtu_load_vlan = ar8216_vtu_load_vlan,
1752 .set_mirror_regs = ar8216_set_mirror_regs,
1753 .get_arl_entry = ar8216_get_arl_entry,
1754 .sw_hw_apply = ar8xxx_sw_hw_apply,
1756 .num_mibs = ARRAY_SIZE(ar8236_mibs),
1757 .mib_decs = ar8236_mibs,
1758 .mib_func = AR8216_REG_MIB_FUNC
1761 static const struct ar8xxx_chip ar8316_chip = {
1762 .caps = AR8XXX_CAP_GIGE | AR8XXX_CAP_MIB_COUNTERS,
1764 .reg_port_stats_start = 0x20000,
1765 .reg_port_stats_length = 0x100,
1766 .reg_arl_ctrl = AR8216_REG_ATU_CTRL,
1768 .name = "Atheros AR8316",
1769 .ports = AR8216_NUM_PORTS,
1770 .vlans = AR8X16_MAX_VLANS,
1771 .swops = &ar8xxx_sw_ops,
1773 .hw_init = ar8316_hw_init,
1774 .init_globals = ar8316_init_globals,
1775 .init_port = ar8216_init_port,
1776 .setup_port = ar8216_setup_port,
1777 .read_port_status = ar8216_read_port_status,
1778 .atu_flush = ar8216_atu_flush,
1779 .atu_flush_port = ar8216_atu_flush_port,
1780 .vtu_flush = ar8216_vtu_flush,
1781 .vtu_load_vlan = ar8216_vtu_load_vlan,
1782 .set_mirror_regs = ar8216_set_mirror_regs,
1783 .get_arl_entry = ar8216_get_arl_entry,
1784 .sw_hw_apply = ar8xxx_sw_hw_apply,
1786 .num_mibs = ARRAY_SIZE(ar8236_mibs),
1787 .mib_decs = ar8236_mibs,
1788 .mib_func = AR8216_REG_MIB_FUNC
1792 ar8xxx_id_chip(struct ar8xxx_priv *priv)
1798 val = ar8xxx_read(priv, AR8216_REG_CTRL);
1802 id = val & (AR8216_CTRL_REVISION | AR8216_CTRL_VERSION);
1803 for (i = 0; i < AR8X16_PROBE_RETRIES; i++) {
1806 val = ar8xxx_read(priv, AR8216_REG_CTRL);
1810 t = val & (AR8216_CTRL_REVISION | AR8216_CTRL_VERSION);
1815 priv->chip_ver = (id & AR8216_CTRL_VERSION) >> AR8216_CTRL_VERSION_S;
1816 priv->chip_rev = (id & AR8216_CTRL_REVISION);
1818 switch (priv->chip_ver) {
1819 case AR8XXX_VER_AR8216:
1820 priv->chip = &ar8216_chip;
1822 case AR8XXX_VER_AR8236:
1823 priv->chip = &ar8236_chip;
1825 case AR8XXX_VER_AR8316:
1826 priv->chip = &ar8316_chip;
1828 case AR8XXX_VER_AR8327:
1829 priv->chip = &ar8327_chip;
1831 case AR8XXX_VER_AR8337:
1832 priv->chip = &ar8337_chip;
1835 pr_err("ar8216: Unknown Atheros device [ver=%d, rev=%d]\n",
1836 priv->chip_ver, priv->chip_rev);
1845 ar8xxx_mib_work_func(struct work_struct *work)
1847 struct ar8xxx_priv *priv;
1850 priv = container_of(work, struct ar8xxx_priv, mib_work.work);
1852 mutex_lock(&priv->mib_lock);
1854 err = ar8xxx_mib_capture(priv);
1858 ar8xxx_mib_fetch_port_stat(priv, priv->mib_next_port, false);
1861 priv->mib_next_port++;
1862 if (priv->mib_next_port >= priv->dev.ports)
1863 priv->mib_next_port = 0;
1865 mutex_unlock(&priv->mib_lock);
1866 schedule_delayed_work(&priv->mib_work,
1867 msecs_to_jiffies(AR8XXX_MIB_WORK_DELAY));
1871 ar8xxx_mib_init(struct ar8xxx_priv *priv)
1875 if (!ar8xxx_has_mib_counters(priv))
1878 BUG_ON(!priv->chip->mib_decs || !priv->chip->num_mibs);
1880 len = priv->dev.ports * priv->chip->num_mibs *
1881 sizeof(*priv->mib_stats);
1882 priv->mib_stats = kzalloc(len, GFP_KERNEL);
1884 if (!priv->mib_stats)
1891 ar8xxx_mib_start(struct ar8xxx_priv *priv)
1893 if (!ar8xxx_has_mib_counters(priv))
1896 schedule_delayed_work(&priv->mib_work,
1897 msecs_to_jiffies(AR8XXX_MIB_WORK_DELAY));
1901 ar8xxx_mib_stop(struct ar8xxx_priv *priv)
1903 if (!ar8xxx_has_mib_counters(priv))
1906 cancel_delayed_work_sync(&priv->mib_work);
1909 static struct ar8xxx_priv *
1912 struct ar8xxx_priv *priv;
1914 priv = kzalloc(sizeof(struct ar8xxx_priv), GFP_KERNEL);
1918 mutex_init(&priv->reg_mutex);
1919 mutex_init(&priv->mib_lock);
1920 INIT_DELAYED_WORK(&priv->mib_work, ar8xxx_mib_work_func);
1926 ar8xxx_free(struct ar8xxx_priv *priv)
1928 if (priv->chip && priv->chip->cleanup)
1929 priv->chip->cleanup(priv);
1931 kfree(priv->chip_data);
1932 kfree(priv->mib_stats);
1937 ar8xxx_probe_switch(struct ar8xxx_priv *priv)
1939 const struct ar8xxx_chip *chip;
1940 struct switch_dev *swdev;
1943 ret = ar8xxx_id_chip(priv);
1950 swdev->cpu_port = AR8216_PORT_CPU;
1951 swdev->name = chip->name;
1952 swdev->vlans = chip->vlans;
1953 swdev->ports = chip->ports;
1954 swdev->ops = chip->swops;
1956 ret = ar8xxx_mib_init(priv);
1964 ar8xxx_start(struct ar8xxx_priv *priv)
1970 ret = priv->chip->hw_init(priv);
1974 ret = ar8xxx_sw_reset_switch(&priv->dev);
1980 ar8xxx_mib_start(priv);
1986 ar8xxx_phy_config_init(struct phy_device *phydev)
1988 struct ar8xxx_priv *priv = phydev->priv;
1989 struct net_device *dev = phydev->attached_dev;
1995 if (priv->chip->config_at_probe)
1996 return ar8xxx_phy_check_aneg(phydev);
2000 if (phydev->addr != 0) {
2001 if (chip_is_ar8316(priv)) {
2002 /* switch device has been initialized, reinit */
2003 priv->dev.ports = (AR8216_NUM_PORTS - 1);
2004 priv->initialized = false;
2005 priv->port4_phy = true;
2006 ar8316_hw_init(priv);
2013 ret = ar8xxx_start(priv);
2017 /* VID fixup only needed on ar8216 */
2018 if (chip_is_ar8216(priv)) {
2019 dev->phy_ptr = priv;
2020 dev->priv_flags |= IFF_NO_IP_ALIGN;
2021 dev->eth_mangle_rx = ar8216_mangle_rx;
2022 dev->eth_mangle_tx = ar8216_mangle_tx;
2029 ar8xxx_check_link_states(struct ar8xxx_priv *priv)
2031 bool link_new, changed = false;
2035 mutex_lock(&priv->reg_mutex);
2037 for (i = 0; i < priv->dev.ports; i++) {
2038 status = priv->chip->read_port_status(priv, i);
2039 link_new = !!(status & AR8216_PORT_STATUS_LINK_UP);
2040 if (link_new == priv->link_up[i])
2043 priv->link_up[i] = link_new;
2045 /* flush ARL entries for this port if it went down*/
2047 priv->chip->atu_flush_port(priv, i);
2048 dev_info(&priv->phy->dev, "Port %d is %s\n",
2049 i, link_new ? "up" : "down");
2052 mutex_unlock(&priv->reg_mutex);
2058 ar8xxx_phy_read_status(struct phy_device *phydev)
2060 struct ar8xxx_priv *priv = phydev->priv;
2061 struct switch_port_link link;
2063 /* check for switch port link changes */
2064 if (phydev->state == PHY_CHANGELINK)
2065 ar8xxx_check_link_states(priv);
2067 if (phydev->addr != 0)
2068 return genphy_read_status(phydev);
2070 ar8216_read_port_link(priv, phydev->addr, &link);
2071 phydev->link = !!link.link;
2075 switch (link.speed) {
2076 case SWITCH_PORT_SPEED_10:
2077 phydev->speed = SPEED_10;
2079 case SWITCH_PORT_SPEED_100:
2080 phydev->speed = SPEED_100;
2082 case SWITCH_PORT_SPEED_1000:
2083 phydev->speed = SPEED_1000;
2088 phydev->duplex = link.duplex ? DUPLEX_FULL : DUPLEX_HALF;
2090 phydev->state = PHY_RUNNING;
2091 netif_carrier_on(phydev->attached_dev);
2092 phydev->adjust_link(phydev->attached_dev);
2098 ar8xxx_phy_config_aneg(struct phy_device *phydev)
2100 if (phydev->addr == 0)
2103 return genphy_config_aneg(phydev);
2106 static const u32 ar8xxx_phy_ids[] = {
2108 0x004dd034, /* AR8327 */
2109 0x004dd036, /* AR8337 */
2112 0x004dd043, /* AR8236 */
2116 ar8xxx_phy_match(u32 phy_id)
2120 for (i = 0; i < ARRAY_SIZE(ar8xxx_phy_ids); i++)
2121 if (phy_id == ar8xxx_phy_ids[i])
2128 ar8xxx_is_possible(struct mii_bus *bus)
2130 unsigned int i, found_phys = 0;
2132 for (i = 0; i < 5; i++) {
2135 phy_id = mdiobus_read(bus, i, MII_PHYSID1) << 16;
2136 phy_id |= mdiobus_read(bus, i, MII_PHYSID2);
2137 if (ar8xxx_phy_match(phy_id)) {
2139 } else if (phy_id) {
2140 pr_debug("ar8xxx: unknown PHY at %s:%02x id:%08x\n",
2141 dev_name(&bus->dev), i, phy_id);
2144 return !!found_phys;
2148 ar8xxx_phy_probe(struct phy_device *phydev)
2150 struct ar8xxx_priv *priv;
2151 struct switch_dev *swdev;
2154 /* skip PHYs at unused adresses */
2155 if (phydev->addr != 0 && phydev->addr != 4)
2158 if (!ar8xxx_is_possible(phydev->bus))
2161 mutex_lock(&ar8xxx_dev_list_lock);
2162 list_for_each_entry(priv, &ar8xxx_dev_list, list)
2163 if (priv->mii_bus == phydev->bus)
2166 priv = ar8xxx_create();
2172 priv->mii_bus = phydev->bus;
2174 ret = ar8xxx_probe_switch(priv);
2179 swdev->alias = dev_name(&priv->mii_bus->dev);
2180 ret = register_switch(swdev, NULL);
2184 pr_info("%s: %s rev. %u switch registered on %s\n",
2185 swdev->devname, swdev->name, priv->chip_rev,
2186 dev_name(&priv->mii_bus->dev));
2188 list_add(&priv->list, &ar8xxx_dev_list);
2193 if (phydev->addr == 0) {
2194 if (ar8xxx_has_gige(priv)) {
2195 phydev->supported = SUPPORTED_1000baseT_Full;
2196 phydev->advertising = ADVERTISED_1000baseT_Full;
2198 phydev->supported = SUPPORTED_100baseT_Full;
2199 phydev->advertising = ADVERTISED_100baseT_Full;
2202 if (priv->chip->config_at_probe) {
2205 ret = ar8xxx_start(priv);
2207 goto err_unregister_switch;
2210 if (ar8xxx_has_gige(priv)) {
2211 phydev->supported |= SUPPORTED_1000baseT_Full;
2212 phydev->advertising |= ADVERTISED_1000baseT_Full;
2216 phydev->priv = priv;
2218 mutex_unlock(&ar8xxx_dev_list_lock);
2222 err_unregister_switch:
2223 if (--priv->use_count)
2226 unregister_switch(&priv->dev);
2231 mutex_unlock(&ar8xxx_dev_list_lock);
2236 ar8xxx_phy_detach(struct phy_device *phydev)
2238 struct net_device *dev = phydev->attached_dev;
2243 dev->phy_ptr = NULL;
2244 dev->priv_flags &= ~IFF_NO_IP_ALIGN;
2245 dev->eth_mangle_rx = NULL;
2246 dev->eth_mangle_tx = NULL;
2250 ar8xxx_phy_remove(struct phy_device *phydev)
2252 struct ar8xxx_priv *priv = phydev->priv;
2257 phydev->priv = NULL;
2259 mutex_lock(&ar8xxx_dev_list_lock);
2261 if (--priv->use_count > 0) {
2262 mutex_unlock(&ar8xxx_dev_list_lock);
2266 list_del(&priv->list);
2267 mutex_unlock(&ar8xxx_dev_list_lock);
2269 unregister_switch(&priv->dev);
2270 ar8xxx_mib_stop(priv);
2274 #if LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)
2276 ar8xxx_phy_soft_reset(struct phy_device *phydev)
2278 /* we don't need an extra reset */
2283 static struct phy_driver ar8xxx_phy_driver = {
2284 .phy_id = 0x004d0000,
2285 .name = "Atheros AR8216/AR8236/AR8316",
2286 .phy_id_mask = 0xffff0000,
2287 .features = PHY_BASIC_FEATURES,
2288 .probe = ar8xxx_phy_probe,
2289 .remove = ar8xxx_phy_remove,
2290 .detach = ar8xxx_phy_detach,
2291 .config_init = ar8xxx_phy_config_init,
2292 .config_aneg = ar8xxx_phy_config_aneg,
2293 .read_status = ar8xxx_phy_read_status,
2294 #if LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)
2295 .soft_reset = ar8xxx_phy_soft_reset,
2297 .driver = { .owner = THIS_MODULE },
2303 return phy_driver_register(&ar8xxx_phy_driver);
2309 phy_driver_unregister(&ar8xxx_phy_driver);
2312 module_init(ar8xxx_init);
2313 module_exit(ar8xxx_exit);
2314 MODULE_LICENSE("GPL");