2 * ar8216.c: AR8216 switch driver
4 * Copyright (C) 2009 Felix Fietkau <nbd@openwrt.org>
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_write(struct ar8xxx_priv
*priv
, int phy_addr
, u16 addr
, u16 data
)
314 struct mii_bus
*bus
= priv
->mii_bus
;
316 mutex_lock(&bus
->mdio_lock
);
317 bus
->write(bus
, phy_addr
, MII_ATH_MMD_ADDR
, addr
);
318 bus
->write(bus
, phy_addr
, MII_ATH_MMD_DATA
, data
);
319 mutex_unlock(&bus
->mdio_lock
);
323 ar8xxx_phy_mmd_read(struct ar8xxx_priv
*priv
, int phy_addr
, u16 addr
)
325 struct mii_bus
*bus
= priv
->mii_bus
;
328 mutex_lock(&bus
->mdio_lock
);
329 bus
->write(bus
, phy_addr
, MII_ATH_MMD_ADDR
, addr
);
330 data
= bus
->read(bus
, phy_addr
, MII_ATH_MMD_DATA
);
331 mutex_unlock(&bus
->mdio_lock
);
337 ar8xxx_reg_wait(struct ar8xxx_priv
*priv
, u32 reg
, u32 mask
, u32 val
,
342 for (i
= 0; i
< timeout
; i
++) {
345 t
= ar8xxx_read(priv
, reg
);
346 if ((t
& mask
) == val
)
349 usleep_range(1000, 2000);
356 ar8xxx_mib_op(struct ar8xxx_priv
*priv
, u32 op
)
358 unsigned mib_func
= priv
->chip
->mib_func
;
361 lockdep_assert_held(&priv
->mib_lock
);
363 /* Capture the hardware statistics for all ports */
364 ar8xxx_rmw(priv
, mib_func
, AR8216_MIB_FUNC
, (op
<< AR8216_MIB_FUNC_S
));
366 /* Wait for the capturing to complete. */
367 ret
= ar8xxx_reg_wait(priv
, mib_func
, AR8216_MIB_BUSY
, 0, 10);
378 ar8xxx_mib_capture(struct ar8xxx_priv
*priv
)
380 return ar8xxx_mib_op(priv
, AR8216_MIB_FUNC_CAPTURE
);
384 ar8xxx_mib_flush(struct ar8xxx_priv
*priv
)
386 return ar8xxx_mib_op(priv
, AR8216_MIB_FUNC_FLUSH
);
390 ar8xxx_mib_fetch_port_stat(struct ar8xxx_priv
*priv
, int port
, bool flush
)
396 WARN_ON(port
>= priv
->dev
.ports
);
398 lockdep_assert_held(&priv
->mib_lock
);
400 base
= priv
->chip
->reg_port_stats_start
+
401 priv
->chip
->reg_port_stats_length
* port
;
403 mib_stats
= &priv
->mib_stats
[port
* priv
->chip
->num_mibs
];
404 for (i
= 0; i
< priv
->chip
->num_mibs
; i
++) {
405 const struct ar8xxx_mib_desc
*mib
;
408 mib
= &priv
->chip
->mib_decs
[i
];
409 t
= ar8xxx_read(priv
, base
+ mib
->offset
);
410 if (mib
->size
== 2) {
413 hi
= ar8xxx_read(priv
, base
+ mib
->offset
+ 4);
425 ar8216_read_port_link(struct ar8xxx_priv
*priv
, int port
,
426 struct switch_port_link
*link
)
431 memset(link
, '\0', sizeof(*link
));
433 status
= priv
->chip
->read_port_status(priv
, port
);
435 link
->aneg
= !!(status
& AR8216_PORT_STATUS_LINK_AUTO
);
437 link
->link
= !!(status
& AR8216_PORT_STATUS_LINK_UP
);
441 if (priv
->get_port_link
) {
444 err
= priv
->get_port_link(port
);
453 link
->duplex
= !!(status
& AR8216_PORT_STATUS_DUPLEX
);
454 link
->tx_flow
= !!(status
& AR8216_PORT_STATUS_TXFLOW
);
455 link
->rx_flow
= !!(status
& AR8216_PORT_STATUS_RXFLOW
);
457 if (link
->aneg
&& link
->duplex
&& priv
->chip
->read_port_eee_status
)
458 link
->eee
= priv
->chip
->read_port_eee_status(priv
, port
);
460 speed
= (status
& AR8216_PORT_STATUS_SPEED
) >>
461 AR8216_PORT_STATUS_SPEED_S
;
464 case AR8216_PORT_SPEED_10M
:
465 link
->speed
= SWITCH_PORT_SPEED_10
;
467 case AR8216_PORT_SPEED_100M
:
468 link
->speed
= SWITCH_PORT_SPEED_100
;
470 case AR8216_PORT_SPEED_1000M
:
471 link
->speed
= SWITCH_PORT_SPEED_1000
;
474 link
->speed
= SWITCH_PORT_SPEED_UNKNOWN
;
479 static struct sk_buff
*
480 ar8216_mangle_tx(struct net_device
*dev
, struct sk_buff
*skb
)
482 struct ar8xxx_priv
*priv
= dev
->phy_ptr
;
491 if (unlikely(skb_headroom(skb
) < 2)) {
492 if (pskb_expand_head(skb
, 2, 0, GFP_ATOMIC
) < 0)
496 buf
= skb_push(skb
, 2);
504 dev_kfree_skb_any(skb
);
509 ar8216_mangle_rx(struct net_device
*dev
, struct sk_buff
*skb
)
511 struct ar8xxx_priv
*priv
;
519 /* don't strip the header if vlan mode is disabled */
523 /* strip header, get vlan id */
527 /* check for vlan header presence */
528 if ((buf
[12 + 2] != 0x81) || (buf
[13 + 2] != 0x00))
533 /* no need to fix up packets coming from a tagged source */
534 if (priv
->vlan_tagged
& (1 << port
))
537 /* lookup port vid from local table, the switch passes an invalid vlan id */
538 vlan
= priv
->vlan_id
[priv
->pvid
[port
]];
541 buf
[14 + 2] |= vlan
>> 8;
542 buf
[15 + 2] = vlan
& 0xff;
546 ar8216_wait_bit(struct ar8xxx_priv
*priv
, int reg
, u32 mask
, u32 val
)
552 t
= ar8xxx_read(priv
, reg
);
553 if ((t
& mask
) == val
)
562 pr_err("ar8216: timeout on reg %08x: %08x & %08x != %08x\n",
563 (unsigned int) reg
, t
, mask
, val
);
568 ar8216_vtu_op(struct ar8xxx_priv
*priv
, u32 op
, u32 val
)
570 if (ar8216_wait_bit(priv
, AR8216_REG_VTU
, AR8216_VTU_ACTIVE
, 0))
572 if ((op
& AR8216_VTU_OP
) == AR8216_VTU_OP_LOAD
) {
573 val
&= AR8216_VTUDATA_MEMBER
;
574 val
|= AR8216_VTUDATA_VALID
;
575 ar8xxx_write(priv
, AR8216_REG_VTU_DATA
, val
);
577 op
|= AR8216_VTU_ACTIVE
;
578 ar8xxx_write(priv
, AR8216_REG_VTU
, op
);
582 ar8216_vtu_flush(struct ar8xxx_priv
*priv
)
584 ar8216_vtu_op(priv
, AR8216_VTU_OP_FLUSH
, 0);
588 ar8216_vtu_load_vlan(struct ar8xxx_priv
*priv
, u32 vid
, u32 port_mask
)
592 op
= AR8216_VTU_OP_LOAD
| (vid
<< AR8216_VTU_VID_S
);
593 ar8216_vtu_op(priv
, op
, port_mask
);
597 ar8216_atu_flush(struct ar8xxx_priv
*priv
)
601 ret
= ar8216_wait_bit(priv
, AR8216_REG_ATU
, AR8216_ATU_ACTIVE
, 0);
603 ar8xxx_write(priv
, AR8216_REG_ATU
, AR8216_ATU_OP_FLUSH
|
610 ar8216_read_port_status(struct ar8xxx_priv
*priv
, int port
)
612 return ar8xxx_read(priv
, AR8216_REG_PORT_STATUS(port
));
616 ar8216_setup_port(struct ar8xxx_priv
*priv
, int port
, u32 members
)
623 pvid
= priv
->vlan_id
[priv
->pvid
[port
]];
624 if (priv
->vlan_tagged
& (1 << port
))
625 egress
= AR8216_OUT_ADD_VLAN
;
627 egress
= AR8216_OUT_STRIP_VLAN
;
628 ingress
= AR8216_IN_SECURE
;
631 egress
= AR8216_OUT_KEEP
;
632 ingress
= AR8216_IN_PORT_ONLY
;
635 if (chip_is_ar8216(priv
) && priv
->vlan
&& port
== AR8216_PORT_CPU
)
636 header
= AR8216_PORT_CTRL_HEADER
;
640 ar8xxx_rmw(priv
, AR8216_REG_PORT_CTRL(port
),
641 AR8216_PORT_CTRL_LEARN
| AR8216_PORT_CTRL_VLAN_MODE
|
642 AR8216_PORT_CTRL_SINGLE_VLAN
| AR8216_PORT_CTRL_STATE
|
643 AR8216_PORT_CTRL_HEADER
| AR8216_PORT_CTRL_LEARN_LOCK
,
644 AR8216_PORT_CTRL_LEARN
| header
|
645 (egress
<< AR8216_PORT_CTRL_VLAN_MODE_S
) |
646 (AR8216_PORT_STATE_FORWARD
<< AR8216_PORT_CTRL_STATE_S
));
648 ar8xxx_rmw(priv
, AR8216_REG_PORT_VLAN(port
),
649 AR8216_PORT_VLAN_DEST_PORTS
| AR8216_PORT_VLAN_MODE
|
650 AR8216_PORT_VLAN_DEFAULT_ID
,
651 (members
<< AR8216_PORT_VLAN_DEST_PORTS_S
) |
652 (ingress
<< AR8216_PORT_VLAN_MODE_S
) |
653 (pvid
<< AR8216_PORT_VLAN_DEFAULT_ID_S
));
657 ar8216_hw_init(struct ar8xxx_priv
*priv
)
659 if (priv
->initialized
)
662 ar8xxx_phy_init(priv
);
664 priv
->initialized
= true;
669 ar8216_init_globals(struct ar8xxx_priv
*priv
)
671 /* standard atheros magic */
672 ar8xxx_write(priv
, 0x38, 0xc000050e);
674 ar8xxx_rmw(priv
, AR8216_REG_GLOBAL_CTRL
,
675 AR8216_GCTRL_MTU
, 1518 + 8 + 2);
679 ar8216_init_port(struct ar8xxx_priv
*priv
, int port
)
681 /* Enable port learning and tx */
682 ar8xxx_write(priv
, AR8216_REG_PORT_CTRL(port
),
683 AR8216_PORT_CTRL_LEARN
|
684 (4 << AR8216_PORT_CTRL_STATE_S
));
686 ar8xxx_write(priv
, AR8216_REG_PORT_VLAN(port
), 0);
688 if (port
== AR8216_PORT_CPU
) {
689 ar8xxx_write(priv
, AR8216_REG_PORT_STATUS(port
),
690 AR8216_PORT_STATUS_LINK_UP
|
691 (ar8xxx_has_gige(priv
) ?
692 AR8216_PORT_SPEED_1000M
: AR8216_PORT_SPEED_100M
) |
693 AR8216_PORT_STATUS_TXMAC
|
694 AR8216_PORT_STATUS_RXMAC
|
695 (chip_is_ar8316(priv
) ? AR8216_PORT_STATUS_RXFLOW
: 0) |
696 (chip_is_ar8316(priv
) ? AR8216_PORT_STATUS_TXFLOW
: 0) |
697 AR8216_PORT_STATUS_DUPLEX
);
699 ar8xxx_write(priv
, AR8216_REG_PORT_STATUS(port
),
700 AR8216_PORT_STATUS_LINK_AUTO
);
705 ar8236_setup_port(struct ar8xxx_priv
*priv
, int port
, u32 members
)
711 pvid
= priv
->vlan_id
[priv
->pvid
[port
]];
712 if (priv
->vlan_tagged
& (1 << port
))
713 egress
= AR8216_OUT_ADD_VLAN
;
715 egress
= AR8216_OUT_STRIP_VLAN
;
716 ingress
= AR8216_IN_SECURE
;
719 egress
= AR8216_OUT_KEEP
;
720 ingress
= AR8216_IN_PORT_ONLY
;
723 ar8xxx_rmw(priv
, AR8216_REG_PORT_CTRL(port
),
724 AR8216_PORT_CTRL_LEARN
| AR8216_PORT_CTRL_VLAN_MODE
|
725 AR8216_PORT_CTRL_SINGLE_VLAN
| AR8216_PORT_CTRL_STATE
|
726 AR8216_PORT_CTRL_HEADER
| AR8216_PORT_CTRL_LEARN_LOCK
,
727 AR8216_PORT_CTRL_LEARN
|
728 (egress
<< AR8216_PORT_CTRL_VLAN_MODE_S
) |
729 (AR8216_PORT_STATE_FORWARD
<< AR8216_PORT_CTRL_STATE_S
));
731 ar8xxx_rmw(priv
, AR8236_REG_PORT_VLAN(port
),
732 AR8236_PORT_VLAN_DEFAULT_ID
,
733 (pvid
<< AR8236_PORT_VLAN_DEFAULT_ID_S
));
735 ar8xxx_rmw(priv
, AR8236_REG_PORT_VLAN2(port
),
736 AR8236_PORT_VLAN2_VLAN_MODE
|
737 AR8236_PORT_VLAN2_MEMBER
,
738 (ingress
<< AR8236_PORT_VLAN2_VLAN_MODE_S
) |
739 (members
<< AR8236_PORT_VLAN2_MEMBER_S
));
743 ar8236_init_globals(struct ar8xxx_priv
*priv
)
745 /* enable jumbo frames */
746 ar8xxx_rmw(priv
, AR8216_REG_GLOBAL_CTRL
,
747 AR8316_GCTRL_MTU
, 9018 + 8 + 2);
749 /* enable cpu port to receive arp frames */
750 ar8xxx_reg_set(priv
, AR8216_REG_ATU_CTRL
,
751 AR8236_ATU_CTRL_RES
);
753 /* enable cpu port to receive multicast and broadcast frames */
754 ar8xxx_reg_set(priv
, AR8216_REG_FLOOD_MASK
,
755 AR8236_FM_CPU_BROADCAST_EN
| AR8236_FM_CPU_BCAST_FWD_EN
);
757 /* Enable MIB counters */
758 ar8xxx_rmw(priv
, AR8216_REG_MIB_FUNC
, AR8216_MIB_FUNC
| AR8236_MIB_EN
,
759 (AR8216_MIB_FUNC_NO_OP
<< AR8216_MIB_FUNC_S
) |
764 ar8316_hw_init(struct ar8xxx_priv
*priv
)
768 val
= ar8xxx_read(priv
, AR8316_REG_POSTRIP
);
770 if (priv
->phy
->interface
== PHY_INTERFACE_MODE_RGMII
) {
771 if (priv
->port4_phy
) {
772 /* value taken from Ubiquiti RouterStation Pro */
774 pr_info("ar8316: Using port 4 as PHY\n");
777 pr_info("ar8316: Using port 4 as switch port\n");
779 } else if (priv
->phy
->interface
== PHY_INTERFACE_MODE_GMII
) {
780 /* value taken from AVM Fritz!Box 7390 sources */
783 /* no known value for phy interface */
784 pr_err("ar8316: unsupported mii mode: %d.\n",
785 priv
->phy
->interface
);
792 ar8xxx_write(priv
, AR8316_REG_POSTRIP
, newval
);
794 if (priv
->port4_phy
&&
795 priv
->phy
->interface
== PHY_INTERFACE_MODE_RGMII
) {
796 /* work around for phy4 rgmii mode */
797 ar8xxx_phy_dbg_write(priv
, 4, 0x12, 0x480c);
799 ar8xxx_phy_dbg_write(priv
, 4, 0x0, 0x824e);
801 ar8xxx_phy_dbg_write(priv
, 4, 0x5, 0x3d47);
805 ar8xxx_phy_init(priv
);
808 priv
->initialized
= true;
813 ar8316_init_globals(struct ar8xxx_priv
*priv
)
815 /* standard atheros magic */
816 ar8xxx_write(priv
, 0x38, 0xc000050e);
818 /* enable cpu port to receive multicast and broadcast frames */
819 ar8xxx_write(priv
, AR8216_REG_FLOOD_MASK
, 0x003f003f);
821 /* enable jumbo frames */
822 ar8xxx_rmw(priv
, AR8216_REG_GLOBAL_CTRL
,
823 AR8316_GCTRL_MTU
, 9018 + 8 + 2);
825 /* Enable MIB counters */
826 ar8xxx_rmw(priv
, AR8216_REG_MIB_FUNC
, AR8216_MIB_FUNC
| AR8236_MIB_EN
,
827 (AR8216_MIB_FUNC_NO_OP
<< AR8216_MIB_FUNC_S
) |
832 ar8xxx_sw_set_vlan(struct switch_dev
*dev
, const struct switch_attr
*attr
,
833 struct switch_val
*val
)
835 struct ar8xxx_priv
*priv
= swdev_to_ar8xxx(dev
);
836 priv
->vlan
= !!val
->value
.i
;
841 ar8xxx_sw_get_vlan(struct switch_dev
*dev
, const struct switch_attr
*attr
,
842 struct switch_val
*val
)
844 struct ar8xxx_priv
*priv
= swdev_to_ar8xxx(dev
);
845 val
->value
.i
= priv
->vlan
;
851 ar8xxx_sw_set_pvid(struct switch_dev
*dev
, int port
, int vlan
)
853 struct ar8xxx_priv
*priv
= swdev_to_ar8xxx(dev
);
855 /* make sure no invalid PVIDs get set */
857 if (vlan
>= dev
->vlans
)
860 priv
->pvid
[port
] = vlan
;
865 ar8xxx_sw_get_pvid(struct switch_dev
*dev
, int port
, int *vlan
)
867 struct ar8xxx_priv
*priv
= swdev_to_ar8xxx(dev
);
868 *vlan
= priv
->pvid
[port
];
873 ar8xxx_sw_set_vid(struct switch_dev
*dev
, const struct switch_attr
*attr
,
874 struct switch_val
*val
)
876 struct ar8xxx_priv
*priv
= swdev_to_ar8xxx(dev
);
877 priv
->vlan_id
[val
->port_vlan
] = val
->value
.i
;
882 ar8xxx_sw_get_vid(struct switch_dev
*dev
, const struct switch_attr
*attr
,
883 struct switch_val
*val
)
885 struct ar8xxx_priv
*priv
= swdev_to_ar8xxx(dev
);
886 val
->value
.i
= priv
->vlan_id
[val
->port_vlan
];
891 ar8xxx_sw_get_port_link(struct switch_dev
*dev
, int port
,
892 struct switch_port_link
*link
)
894 struct ar8xxx_priv
*priv
= swdev_to_ar8xxx(dev
);
896 ar8216_read_port_link(priv
, port
, link
);
901 ar8xxx_sw_get_ports(struct switch_dev
*dev
, struct switch_val
*val
)
903 struct ar8xxx_priv
*priv
= swdev_to_ar8xxx(dev
);
904 u8 ports
= priv
->vlan_table
[val
->port_vlan
];
908 for (i
= 0; i
< dev
->ports
; i
++) {
909 struct switch_port
*p
;
911 if (!(ports
& (1 << i
)))
914 p
= &val
->value
.ports
[val
->len
++];
916 if (priv
->vlan_tagged
& (1 << i
))
917 p
->flags
= (1 << SWITCH_PORT_FLAG_TAGGED
);
925 ar8xxx_sw_set_ports(struct switch_dev
*dev
, struct switch_val
*val
)
927 struct ar8xxx_priv
*priv
= swdev_to_ar8xxx(dev
);
928 u8
*vt
= &priv
->vlan_table
[val
->port_vlan
];
932 for (i
= 0; i
< val
->len
; i
++) {
933 struct switch_port
*p
= &val
->value
.ports
[i
];
935 if (p
->flags
& (1 << SWITCH_PORT_FLAG_TAGGED
)) {
936 priv
->vlan_tagged
|= (1 << p
->id
);
938 priv
->vlan_tagged
&= ~(1 << p
->id
);
939 priv
->pvid
[p
->id
] = val
->port_vlan
;
941 /* make sure that an untagged port does not
942 * appear in other vlans */
943 for (j
= 0; j
< AR8X16_MAX_VLANS
; j
++) {
944 if (j
== val
->port_vlan
)
946 priv
->vlan_table
[j
] &= ~(1 << p
->id
);
956 ar8216_set_mirror_regs(struct ar8xxx_priv
*priv
)
960 /* reset all mirror registers */
961 ar8xxx_rmw(priv
, AR8216_REG_GLOBAL_CPUPORT
,
962 AR8216_GLOBAL_CPUPORT_MIRROR_PORT
,
963 (0xF << AR8216_GLOBAL_CPUPORT_MIRROR_PORT_S
));
964 for (port
= 0; port
< AR8216_NUM_PORTS
; port
++) {
965 ar8xxx_reg_clear(priv
, AR8216_REG_PORT_CTRL(port
),
966 AR8216_PORT_CTRL_MIRROR_RX
);
968 ar8xxx_reg_clear(priv
, AR8216_REG_PORT_CTRL(port
),
969 AR8216_PORT_CTRL_MIRROR_TX
);
972 /* now enable mirroring if necessary */
973 if (priv
->source_port
>= AR8216_NUM_PORTS
||
974 priv
->monitor_port
>= AR8216_NUM_PORTS
||
975 priv
->source_port
== priv
->monitor_port
) {
979 ar8xxx_rmw(priv
, AR8216_REG_GLOBAL_CPUPORT
,
980 AR8216_GLOBAL_CPUPORT_MIRROR_PORT
,
981 (priv
->monitor_port
<< AR8216_GLOBAL_CPUPORT_MIRROR_PORT_S
));
984 ar8xxx_reg_set(priv
, AR8216_REG_PORT_CTRL(priv
->source_port
),
985 AR8216_PORT_CTRL_MIRROR_RX
);
988 ar8xxx_reg_set(priv
, AR8216_REG_PORT_CTRL(priv
->source_port
),
989 AR8216_PORT_CTRL_MIRROR_TX
);
993 ar8xxx_sw_hw_apply(struct switch_dev
*dev
)
995 struct ar8xxx_priv
*priv
= swdev_to_ar8xxx(dev
);
996 u8 portmask
[AR8X16_MAX_PORTS
];
999 mutex_lock(&priv
->reg_mutex
);
1000 /* flush all vlan translation unit entries */
1001 priv
->chip
->vtu_flush(priv
);
1003 memset(portmask
, 0, sizeof(portmask
));
1005 /* calculate the port destination masks and load vlans
1006 * into the vlan translation unit */
1007 for (j
= 0; j
< AR8X16_MAX_VLANS
; j
++) {
1008 u8 vp
= priv
->vlan_table
[j
];
1013 for (i
= 0; i
< dev
->ports
; i
++) {
1016 portmask
[i
] |= vp
& ~mask
;
1019 priv
->chip
->vtu_load_vlan(priv
, priv
->vlan_id
[j
],
1020 priv
->vlan_table
[j
]);
1024 * isolate all ports, but connect them to the cpu port */
1025 for (i
= 0; i
< dev
->ports
; i
++) {
1026 if (i
== AR8216_PORT_CPU
)
1029 portmask
[i
] = 1 << AR8216_PORT_CPU
;
1030 portmask
[AR8216_PORT_CPU
] |= (1 << i
);
1034 /* update the port destination mask registers and tag settings */
1035 for (i
= 0; i
< dev
->ports
; i
++) {
1036 priv
->chip
->setup_port(priv
, i
, portmask
[i
]);
1039 priv
->chip
->set_mirror_regs(priv
);
1041 mutex_unlock(&priv
->reg_mutex
);
1046 ar8xxx_sw_reset_switch(struct switch_dev
*dev
)
1048 struct ar8xxx_priv
*priv
= swdev_to_ar8xxx(dev
);
1049 const struct ar8xxx_chip
*chip
= priv
->chip
;
1052 mutex_lock(&priv
->reg_mutex
);
1053 memset(&priv
->vlan
, 0, sizeof(struct ar8xxx_priv
) -
1054 offsetof(struct ar8xxx_priv
, vlan
));
1056 for (i
= 0; i
< AR8X16_MAX_VLANS
; i
++)
1057 priv
->vlan_id
[i
] = i
;
1059 /* Configure all ports */
1060 for (i
= 0; i
< dev
->ports
; i
++)
1061 chip
->init_port(priv
, i
);
1063 priv
->mirror_rx
= false;
1064 priv
->mirror_tx
= false;
1065 priv
->source_port
= 0;
1066 priv
->monitor_port
= 0;
1068 chip
->init_globals(priv
);
1070 mutex_unlock(&priv
->reg_mutex
);
1072 return chip
->sw_hw_apply(dev
);
1076 ar8xxx_sw_set_reset_mibs(struct switch_dev
*dev
,
1077 const struct switch_attr
*attr
,
1078 struct switch_val
*val
)
1080 struct ar8xxx_priv
*priv
= swdev_to_ar8xxx(dev
);
1084 if (!ar8xxx_has_mib_counters(priv
))
1087 mutex_lock(&priv
->mib_lock
);
1089 len
= priv
->dev
.ports
* priv
->chip
->num_mibs
*
1090 sizeof(*priv
->mib_stats
);
1091 memset(priv
->mib_stats
, '\0', len
);
1092 ret
= ar8xxx_mib_flush(priv
);
1099 mutex_unlock(&priv
->mib_lock
);
1104 ar8xxx_sw_set_mirror_rx_enable(struct switch_dev
*dev
,
1105 const struct switch_attr
*attr
,
1106 struct switch_val
*val
)
1108 struct ar8xxx_priv
*priv
= swdev_to_ar8xxx(dev
);
1110 mutex_lock(&priv
->reg_mutex
);
1111 priv
->mirror_rx
= !!val
->value
.i
;
1112 priv
->chip
->set_mirror_regs(priv
);
1113 mutex_unlock(&priv
->reg_mutex
);
1119 ar8xxx_sw_get_mirror_rx_enable(struct switch_dev
*dev
,
1120 const struct switch_attr
*attr
,
1121 struct switch_val
*val
)
1123 struct ar8xxx_priv
*priv
= swdev_to_ar8xxx(dev
);
1124 val
->value
.i
= priv
->mirror_rx
;
1129 ar8xxx_sw_set_mirror_tx_enable(struct switch_dev
*dev
,
1130 const struct switch_attr
*attr
,
1131 struct switch_val
*val
)
1133 struct ar8xxx_priv
*priv
= swdev_to_ar8xxx(dev
);
1135 mutex_lock(&priv
->reg_mutex
);
1136 priv
->mirror_tx
= !!val
->value
.i
;
1137 priv
->chip
->set_mirror_regs(priv
);
1138 mutex_unlock(&priv
->reg_mutex
);
1144 ar8xxx_sw_get_mirror_tx_enable(struct switch_dev
*dev
,
1145 const struct switch_attr
*attr
,
1146 struct switch_val
*val
)
1148 struct ar8xxx_priv
*priv
= swdev_to_ar8xxx(dev
);
1149 val
->value
.i
= priv
->mirror_tx
;
1154 ar8xxx_sw_set_mirror_monitor_port(struct switch_dev
*dev
,
1155 const struct switch_attr
*attr
,
1156 struct switch_val
*val
)
1158 struct ar8xxx_priv
*priv
= swdev_to_ar8xxx(dev
);
1160 mutex_lock(&priv
->reg_mutex
);
1161 priv
->monitor_port
= val
->value
.i
;
1162 priv
->chip
->set_mirror_regs(priv
);
1163 mutex_unlock(&priv
->reg_mutex
);
1169 ar8xxx_sw_get_mirror_monitor_port(struct switch_dev
*dev
,
1170 const struct switch_attr
*attr
,
1171 struct switch_val
*val
)
1173 struct ar8xxx_priv
*priv
= swdev_to_ar8xxx(dev
);
1174 val
->value
.i
= priv
->monitor_port
;
1179 ar8xxx_sw_set_mirror_source_port(struct switch_dev
*dev
,
1180 const struct switch_attr
*attr
,
1181 struct switch_val
*val
)
1183 struct ar8xxx_priv
*priv
= swdev_to_ar8xxx(dev
);
1185 mutex_lock(&priv
->reg_mutex
);
1186 priv
->source_port
= val
->value
.i
;
1187 priv
->chip
->set_mirror_regs(priv
);
1188 mutex_unlock(&priv
->reg_mutex
);
1194 ar8xxx_sw_get_mirror_source_port(struct switch_dev
*dev
,
1195 const struct switch_attr
*attr
,
1196 struct switch_val
*val
)
1198 struct ar8xxx_priv
*priv
= swdev_to_ar8xxx(dev
);
1199 val
->value
.i
= priv
->source_port
;
1204 ar8xxx_sw_set_port_reset_mib(struct switch_dev
*dev
,
1205 const struct switch_attr
*attr
,
1206 struct switch_val
*val
)
1208 struct ar8xxx_priv
*priv
= swdev_to_ar8xxx(dev
);
1212 if (!ar8xxx_has_mib_counters(priv
))
1215 port
= val
->port_vlan
;
1216 if (port
>= dev
->ports
)
1219 mutex_lock(&priv
->mib_lock
);
1220 ret
= ar8xxx_mib_capture(priv
);
1224 ar8xxx_mib_fetch_port_stat(priv
, port
, true);
1229 mutex_unlock(&priv
->mib_lock
);
1234 ar8xxx_sw_get_port_mib(struct switch_dev
*dev
,
1235 const struct switch_attr
*attr
,
1236 struct switch_val
*val
)
1238 struct ar8xxx_priv
*priv
= swdev_to_ar8xxx(dev
);
1239 const struct ar8xxx_chip
*chip
= priv
->chip
;
1243 char *buf
= priv
->buf
;
1246 if (!ar8xxx_has_mib_counters(priv
))
1249 port
= val
->port_vlan
;
1250 if (port
>= dev
->ports
)
1253 mutex_lock(&priv
->mib_lock
);
1254 ret
= ar8xxx_mib_capture(priv
);
1258 ar8xxx_mib_fetch_port_stat(priv
, port
, false);
1260 len
+= snprintf(buf
+ len
, sizeof(priv
->buf
) - len
,
1261 "Port %d MIB counters\n",
1264 mib_stats
= &priv
->mib_stats
[port
* chip
->num_mibs
];
1265 for (i
= 0; i
< chip
->num_mibs
; i
++)
1266 len
+= snprintf(buf
+ len
, sizeof(priv
->buf
) - len
,
1268 chip
->mib_decs
[i
].name
,
1277 mutex_unlock(&priv
->mib_lock
);
1282 ar8xxx_sw_get_arl_table(struct switch_dev
*dev
,
1283 const struct switch_attr
*attr
,
1284 struct switch_val
*val
)
1286 struct ar8xxx_priv
*priv
= swdev_to_ar8xxx(dev
);
1287 struct mii_bus
*bus
= priv
->mii_bus
;
1288 const struct ar8xxx_chip
*chip
= priv
->chip
;
1289 char *buf
= priv
->arl_buf
;
1290 int i
, j
, k
, len
= 0;
1291 struct arl_entry
*a
, *a1
;
1294 if (!chip
->get_arl_entry
)
1297 mutex_lock(&priv
->reg_mutex
);
1298 mutex_lock(&bus
->mdio_lock
);
1300 chip
->get_arl_entry(priv
, NULL
, NULL
, AR8XXX_ARL_INITIALIZE
);
1302 for(i
= 0; i
< AR8XXX_NUM_ARL_RECORDS
; ++i
) {
1303 a
= &priv
->arl_table
[i
];
1305 chip
->get_arl_entry(priv
, a
, &status
, AR8XXX_ARL_GET_NEXT
);
1311 * ARL table can include multiple valid entries
1312 * per MAC, just with differing status codes
1314 for (j
= 0; j
< i
; ++j
) {
1315 a1
= &priv
->arl_table
[j
];
1316 if (a
->port
== a1
->port
&& !memcmp(a
->mac
, a1
->mac
, sizeof(a
->mac
)))
1321 mutex_unlock(&bus
->mdio_lock
);
1323 len
+= snprintf(buf
+ len
, sizeof(priv
->arl_buf
) - len
,
1324 "address resolution table\n");
1326 if (i
== AR8XXX_NUM_ARL_RECORDS
)
1327 len
+= snprintf(buf
+ len
, sizeof(priv
->arl_buf
) - len
,
1328 "Too many entries found, displaying the first %d only!\n",
1329 AR8XXX_NUM_ARL_RECORDS
);
1331 for (j
= 0; j
< priv
->dev
.ports
; ++j
) {
1332 for (k
= 0; k
< i
; ++k
) {
1333 a
= &priv
->arl_table
[k
];
1336 len
+= snprintf(buf
+ len
, sizeof(priv
->arl_buf
) - len
,
1337 "Port %d: MAC %02x:%02x:%02x:%02x:%02x:%02x\n",
1339 a
->mac
[5], a
->mac
[4], a
->mac
[3],
1340 a
->mac
[2], a
->mac
[1], a
->mac
[0]);
1347 mutex_unlock(&priv
->reg_mutex
);
1353 static const struct switch_attr ar8xxx_sw_attr_globals
[] = {
1355 .type
= SWITCH_TYPE_INT
,
1356 .name
= "enable_vlan",
1357 .description
= "Enable VLAN mode",
1358 .set
= ar8xxx_sw_set_vlan
,
1359 .get
= ar8xxx_sw_get_vlan
,
1363 .type
= SWITCH_TYPE_NOVAL
,
1364 .name
= "reset_mibs",
1365 .description
= "Reset all MIB counters",
1366 .set
= ar8xxx_sw_set_reset_mibs
,
1369 .type
= SWITCH_TYPE_INT
,
1370 .name
= "enable_mirror_rx",
1371 .description
= "Enable mirroring of RX packets",
1372 .set
= ar8xxx_sw_set_mirror_rx_enable
,
1373 .get
= ar8xxx_sw_get_mirror_rx_enable
,
1377 .type
= SWITCH_TYPE_INT
,
1378 .name
= "enable_mirror_tx",
1379 .description
= "Enable mirroring of TX packets",
1380 .set
= ar8xxx_sw_set_mirror_tx_enable
,
1381 .get
= ar8xxx_sw_get_mirror_tx_enable
,
1385 .type
= SWITCH_TYPE_INT
,
1386 .name
= "mirror_monitor_port",
1387 .description
= "Mirror monitor port",
1388 .set
= ar8xxx_sw_set_mirror_monitor_port
,
1389 .get
= ar8xxx_sw_get_mirror_monitor_port
,
1390 .max
= AR8216_NUM_PORTS
- 1
1393 .type
= SWITCH_TYPE_INT
,
1394 .name
= "mirror_source_port",
1395 .description
= "Mirror source port",
1396 .set
= ar8xxx_sw_set_mirror_source_port
,
1397 .get
= ar8xxx_sw_get_mirror_source_port
,
1398 .max
= AR8216_NUM_PORTS
- 1
1401 .type
= SWITCH_TYPE_STRING
,
1402 .name
= "arl_table",
1403 .description
= "Get ARL table",
1405 .get
= ar8xxx_sw_get_arl_table
,
1409 const struct switch_attr ar8xxx_sw_attr_port
[2] = {
1411 .type
= SWITCH_TYPE_NOVAL
,
1412 .name
= "reset_mib",
1413 .description
= "Reset single port MIB counters",
1414 .set
= ar8xxx_sw_set_port_reset_mib
,
1417 .type
= SWITCH_TYPE_STRING
,
1419 .description
= "Get port's MIB counters",
1421 .get
= ar8xxx_sw_get_port_mib
,
1425 const struct switch_attr ar8xxx_sw_attr_vlan
[1] = {
1427 .type
= SWITCH_TYPE_INT
,
1429 .description
= "VLAN ID (0-4094)",
1430 .set
= ar8xxx_sw_set_vid
,
1431 .get
= ar8xxx_sw_get_vid
,
1436 static const struct switch_dev_ops ar8xxx_sw_ops
= {
1438 .attr
= ar8xxx_sw_attr_globals
,
1439 .n_attr
= ARRAY_SIZE(ar8xxx_sw_attr_globals
),
1442 .attr
= ar8xxx_sw_attr_port
,
1443 .n_attr
= ARRAY_SIZE(ar8xxx_sw_attr_port
),
1446 .attr
= ar8xxx_sw_attr_vlan
,
1447 .n_attr
= ARRAY_SIZE(ar8xxx_sw_attr_vlan
),
1449 .get_port_pvid
= ar8xxx_sw_get_pvid
,
1450 .set_port_pvid
= ar8xxx_sw_set_pvid
,
1451 .get_vlan_ports
= ar8xxx_sw_get_ports
,
1452 .set_vlan_ports
= ar8xxx_sw_set_ports
,
1453 .apply_config
= ar8xxx_sw_hw_apply
,
1454 .reset_switch
= ar8xxx_sw_reset_switch
,
1455 .get_port_link
= ar8xxx_sw_get_port_link
,
1458 static const struct ar8xxx_chip ar8216_chip
= {
1459 .caps
= AR8XXX_CAP_MIB_COUNTERS
,
1461 .reg_port_stats_start
= 0x19000,
1462 .reg_port_stats_length
= 0xa0,
1464 .name
= "Atheros AR8216",
1465 .ports
= AR8216_NUM_PORTS
,
1466 .vlans
= AR8216_NUM_VLANS
,
1467 .swops
= &ar8xxx_sw_ops
,
1469 .hw_init
= ar8216_hw_init
,
1470 .init_globals
= ar8216_init_globals
,
1471 .init_port
= ar8216_init_port
,
1472 .setup_port
= ar8216_setup_port
,
1473 .read_port_status
= ar8216_read_port_status
,
1474 .atu_flush
= ar8216_atu_flush
,
1475 .vtu_flush
= ar8216_vtu_flush
,
1476 .vtu_load_vlan
= ar8216_vtu_load_vlan
,
1477 .set_mirror_regs
= ar8216_set_mirror_regs
,
1478 .sw_hw_apply
= ar8xxx_sw_hw_apply
,
1480 .num_mibs
= ARRAY_SIZE(ar8216_mibs
),
1481 .mib_decs
= ar8216_mibs
,
1482 .mib_func
= AR8216_REG_MIB_FUNC
1485 static const struct ar8xxx_chip ar8236_chip
= {
1486 .caps
= AR8XXX_CAP_MIB_COUNTERS
,
1488 .reg_port_stats_start
= 0x20000,
1489 .reg_port_stats_length
= 0x100,
1491 .name
= "Atheros AR8236",
1492 .ports
= AR8216_NUM_PORTS
,
1493 .vlans
= AR8216_NUM_VLANS
,
1494 .swops
= &ar8xxx_sw_ops
,
1496 .hw_init
= ar8216_hw_init
,
1497 .init_globals
= ar8236_init_globals
,
1498 .init_port
= ar8216_init_port
,
1499 .setup_port
= ar8236_setup_port
,
1500 .read_port_status
= ar8216_read_port_status
,
1501 .atu_flush
= ar8216_atu_flush
,
1502 .vtu_flush
= ar8216_vtu_flush
,
1503 .vtu_load_vlan
= ar8216_vtu_load_vlan
,
1504 .set_mirror_regs
= ar8216_set_mirror_regs
,
1505 .sw_hw_apply
= ar8xxx_sw_hw_apply
,
1507 .num_mibs
= ARRAY_SIZE(ar8236_mibs
),
1508 .mib_decs
= ar8236_mibs
,
1509 .mib_func
= AR8216_REG_MIB_FUNC
1512 static const struct ar8xxx_chip ar8316_chip
= {
1513 .caps
= AR8XXX_CAP_GIGE
| AR8XXX_CAP_MIB_COUNTERS
,
1515 .reg_port_stats_start
= 0x20000,
1516 .reg_port_stats_length
= 0x100,
1518 .name
= "Atheros AR8316",
1519 .ports
= AR8216_NUM_PORTS
,
1520 .vlans
= AR8X16_MAX_VLANS
,
1521 .swops
= &ar8xxx_sw_ops
,
1523 .hw_init
= ar8316_hw_init
,
1524 .init_globals
= ar8316_init_globals
,
1525 .init_port
= ar8216_init_port
,
1526 .setup_port
= ar8216_setup_port
,
1527 .read_port_status
= ar8216_read_port_status
,
1528 .atu_flush
= ar8216_atu_flush
,
1529 .vtu_flush
= ar8216_vtu_flush
,
1530 .vtu_load_vlan
= ar8216_vtu_load_vlan
,
1531 .set_mirror_regs
= ar8216_set_mirror_regs
,
1532 .sw_hw_apply
= ar8xxx_sw_hw_apply
,
1534 .num_mibs
= ARRAY_SIZE(ar8236_mibs
),
1535 .mib_decs
= ar8236_mibs
,
1536 .mib_func
= AR8216_REG_MIB_FUNC
1540 ar8xxx_id_chip(struct ar8xxx_priv
*priv
)
1546 val
= ar8xxx_read(priv
, AR8216_REG_CTRL
);
1550 id
= val
& (AR8216_CTRL_REVISION
| AR8216_CTRL_VERSION
);
1551 for (i
= 0; i
< AR8X16_PROBE_RETRIES
; i
++) {
1554 val
= ar8xxx_read(priv
, AR8216_REG_CTRL
);
1558 t
= val
& (AR8216_CTRL_REVISION
| AR8216_CTRL_VERSION
);
1563 priv
->chip_ver
= (id
& AR8216_CTRL_VERSION
) >> AR8216_CTRL_VERSION_S
;
1564 priv
->chip_rev
= (id
& AR8216_CTRL_REVISION
);
1566 switch (priv
->chip_ver
) {
1567 case AR8XXX_VER_AR8216
:
1568 priv
->chip
= &ar8216_chip
;
1570 case AR8XXX_VER_AR8236
:
1571 priv
->chip
= &ar8236_chip
;
1573 case AR8XXX_VER_AR8316
:
1574 priv
->chip
= &ar8316_chip
;
1576 case AR8XXX_VER_AR8327
:
1577 priv
->chip
= &ar8327_chip
;
1579 case AR8XXX_VER_AR8337
:
1580 priv
->chip
= &ar8337_chip
;
1583 pr_err("ar8216: Unknown Atheros device [ver=%d, rev=%d]\n",
1584 priv
->chip_ver
, priv
->chip_rev
);
1593 ar8xxx_mib_work_func(struct work_struct
*work
)
1595 struct ar8xxx_priv
*priv
;
1598 priv
= container_of(work
, struct ar8xxx_priv
, mib_work
.work
);
1600 mutex_lock(&priv
->mib_lock
);
1602 err
= ar8xxx_mib_capture(priv
);
1606 ar8xxx_mib_fetch_port_stat(priv
, priv
->mib_next_port
, false);
1609 priv
->mib_next_port
++;
1610 if (priv
->mib_next_port
>= priv
->dev
.ports
)
1611 priv
->mib_next_port
= 0;
1613 mutex_unlock(&priv
->mib_lock
);
1614 schedule_delayed_work(&priv
->mib_work
,
1615 msecs_to_jiffies(AR8XXX_MIB_WORK_DELAY
));
1619 ar8xxx_mib_init(struct ar8xxx_priv
*priv
)
1623 if (!ar8xxx_has_mib_counters(priv
))
1626 BUG_ON(!priv
->chip
->mib_decs
|| !priv
->chip
->num_mibs
);
1628 len
= priv
->dev
.ports
* priv
->chip
->num_mibs
*
1629 sizeof(*priv
->mib_stats
);
1630 priv
->mib_stats
= kzalloc(len
, GFP_KERNEL
);
1632 if (!priv
->mib_stats
)
1639 ar8xxx_mib_start(struct ar8xxx_priv
*priv
)
1641 if (!ar8xxx_has_mib_counters(priv
))
1644 schedule_delayed_work(&priv
->mib_work
,
1645 msecs_to_jiffies(AR8XXX_MIB_WORK_DELAY
));
1649 ar8xxx_mib_stop(struct ar8xxx_priv
*priv
)
1651 if (!ar8xxx_has_mib_counters(priv
))
1654 cancel_delayed_work(&priv
->mib_work
);
1657 static struct ar8xxx_priv
*
1660 struct ar8xxx_priv
*priv
;
1662 priv
= kzalloc(sizeof(struct ar8xxx_priv
), GFP_KERNEL
);
1666 mutex_init(&priv
->reg_mutex
);
1667 mutex_init(&priv
->mib_lock
);
1668 INIT_DELAYED_WORK(&priv
->mib_work
, ar8xxx_mib_work_func
);
1674 ar8xxx_free(struct ar8xxx_priv
*priv
)
1676 if (priv
->chip
&& priv
->chip
->cleanup
)
1677 priv
->chip
->cleanup(priv
);
1679 kfree(priv
->chip_data
);
1680 kfree(priv
->mib_stats
);
1685 ar8xxx_probe_switch(struct ar8xxx_priv
*priv
)
1687 const struct ar8xxx_chip
*chip
;
1688 struct switch_dev
*swdev
;
1691 ret
= ar8xxx_id_chip(priv
);
1698 swdev
->cpu_port
= AR8216_PORT_CPU
;
1699 swdev
->name
= chip
->name
;
1700 swdev
->vlans
= chip
->vlans
;
1701 swdev
->ports
= chip
->ports
;
1702 swdev
->ops
= chip
->swops
;
1704 ret
= ar8xxx_mib_init(priv
);
1712 ar8xxx_start(struct ar8xxx_priv
*priv
)
1718 ret
= priv
->chip
->hw_init(priv
);
1722 ret
= ar8xxx_sw_reset_switch(&priv
->dev
);
1728 ar8xxx_mib_start(priv
);
1734 ar8xxx_phy_config_init(struct phy_device
*phydev
)
1736 struct ar8xxx_priv
*priv
= phydev
->priv
;
1737 struct net_device
*dev
= phydev
->attached_dev
;
1743 if (priv
->chip
->config_at_probe
)
1744 return ar8xxx_phy_check_aneg(phydev
);
1748 if (phydev
->addr
!= 0) {
1749 if (chip_is_ar8316(priv
)) {
1750 /* switch device has been initialized, reinit */
1751 priv
->dev
.ports
= (AR8216_NUM_PORTS
- 1);
1752 priv
->initialized
= false;
1753 priv
->port4_phy
= true;
1754 ar8316_hw_init(priv
);
1761 ret
= ar8xxx_start(priv
);
1765 /* VID fixup only needed on ar8216 */
1766 if (chip_is_ar8216(priv
)) {
1767 dev
->phy_ptr
= priv
;
1768 dev
->priv_flags
|= IFF_NO_IP_ALIGN
;
1769 dev
->eth_mangle_rx
= ar8216_mangle_rx
;
1770 dev
->eth_mangle_tx
= ar8216_mangle_tx
;
1777 ar8xxx_check_link_states(struct ar8xxx_priv
*priv
)
1779 bool link_new
, changed
= false;
1783 mutex_lock(&priv
->reg_mutex
);
1785 for (i
= 0; i
< priv
->dev
.ports
; i
++) {
1786 status
= priv
->chip
->read_port_status(priv
, i
);
1787 link_new
= !!(status
& AR8216_PORT_STATUS_LINK_UP
);
1788 if (link_new
== priv
->link_up
[i
])
1791 priv
->link_up
[i
] = link_new
;
1793 dev_info(&priv
->phy
->dev
, "Port %d is %s\n",
1794 i
, link_new
? "up" : "down");
1798 priv
->chip
->atu_flush(priv
);
1800 mutex_unlock(&priv
->reg_mutex
);
1806 ar8xxx_phy_read_status(struct phy_device
*phydev
)
1808 struct ar8xxx_priv
*priv
= phydev
->priv
;
1809 struct switch_port_link link
;
1811 /* check for link changes and flush ATU
1812 * if a change was detected
1814 if (phydev
->state
== PHY_CHANGELINK
)
1815 ar8xxx_check_link_states(priv
);
1817 if (phydev
->addr
!= 0)
1818 return genphy_read_status(phydev
);
1820 ar8216_read_port_link(priv
, phydev
->addr
, &link
);
1821 phydev
->link
= !!link
.link
;
1825 switch (link
.speed
) {
1826 case SWITCH_PORT_SPEED_10
:
1827 phydev
->speed
= SPEED_10
;
1829 case SWITCH_PORT_SPEED_100
:
1830 phydev
->speed
= SPEED_100
;
1832 case SWITCH_PORT_SPEED_1000
:
1833 phydev
->speed
= SPEED_1000
;
1838 phydev
->duplex
= link
.duplex
? DUPLEX_FULL
: DUPLEX_HALF
;
1840 phydev
->state
= PHY_RUNNING
;
1841 netif_carrier_on(phydev
->attached_dev
);
1842 phydev
->adjust_link(phydev
->attached_dev
);
1848 ar8xxx_phy_config_aneg(struct phy_device
*phydev
)
1850 if (phydev
->addr
== 0)
1853 return genphy_config_aneg(phydev
);
1856 static const u32 ar8xxx_phy_ids
[] = {
1858 0x004dd034, /* AR8327 */
1859 0x004dd036, /* AR8337 */
1862 0x004dd043, /* AR8236 */
1866 ar8xxx_phy_match(u32 phy_id
)
1870 for (i
= 0; i
< ARRAY_SIZE(ar8xxx_phy_ids
); i
++)
1871 if (phy_id
== ar8xxx_phy_ids
[i
])
1878 ar8xxx_is_possible(struct mii_bus
*bus
)
1882 for (i
= 0; i
< 4; i
++) {
1885 phy_id
= mdiobus_read(bus
, i
, MII_PHYSID1
) << 16;
1886 phy_id
|= mdiobus_read(bus
, i
, MII_PHYSID2
);
1887 if (!ar8xxx_phy_match(phy_id
)) {
1888 pr_debug("ar8xxx: unknown PHY at %s:%02x id:%08x\n",
1889 dev_name(&bus
->dev
), i
, phy_id
);
1898 ar8xxx_phy_probe(struct phy_device
*phydev
)
1900 struct ar8xxx_priv
*priv
;
1901 struct switch_dev
*swdev
;
1904 /* skip PHYs at unused adresses */
1905 if (phydev
->addr
!= 0 && phydev
->addr
!= 4)
1908 if (!ar8xxx_is_possible(phydev
->bus
))
1911 mutex_lock(&ar8xxx_dev_list_lock
);
1912 list_for_each_entry(priv
, &ar8xxx_dev_list
, list
)
1913 if (priv
->mii_bus
== phydev
->bus
)
1916 priv
= ar8xxx_create();
1922 priv
->mii_bus
= phydev
->bus
;
1924 ret
= ar8xxx_probe_switch(priv
);
1929 swdev
->alias
= dev_name(&priv
->mii_bus
->dev
);
1930 ret
= register_switch(swdev
, NULL
);
1934 pr_info("%s: %s rev. %u switch registered on %s\n",
1935 swdev
->devname
, swdev
->name
, priv
->chip_rev
,
1936 dev_name(&priv
->mii_bus
->dev
));
1941 if (phydev
->addr
== 0) {
1942 if (ar8xxx_has_gige(priv
)) {
1943 phydev
->supported
= SUPPORTED_1000baseT_Full
;
1944 phydev
->advertising
= ADVERTISED_1000baseT_Full
;
1946 phydev
->supported
= SUPPORTED_100baseT_Full
;
1947 phydev
->advertising
= ADVERTISED_100baseT_Full
;
1950 if (priv
->chip
->config_at_probe
) {
1953 ret
= ar8xxx_start(priv
);
1955 goto err_unregister_switch
;
1958 if (ar8xxx_has_gige(priv
)) {
1959 phydev
->supported
|= SUPPORTED_1000baseT_Full
;
1960 phydev
->advertising
|= ADVERTISED_1000baseT_Full
;
1964 phydev
->priv
= priv
;
1966 list_add(&priv
->list
, &ar8xxx_dev_list
);
1968 mutex_unlock(&ar8xxx_dev_list_lock
);
1972 err_unregister_switch
:
1973 if (--priv
->use_count
)
1976 unregister_switch(&priv
->dev
);
1981 mutex_unlock(&ar8xxx_dev_list_lock
);
1986 ar8xxx_phy_detach(struct phy_device
*phydev
)
1988 struct net_device
*dev
= phydev
->attached_dev
;
1993 dev
->phy_ptr
= NULL
;
1994 dev
->priv_flags
&= ~IFF_NO_IP_ALIGN
;
1995 dev
->eth_mangle_rx
= NULL
;
1996 dev
->eth_mangle_tx
= NULL
;
2000 ar8xxx_phy_remove(struct phy_device
*phydev
)
2002 struct ar8xxx_priv
*priv
= phydev
->priv
;
2007 phydev
->priv
= NULL
;
2008 if (--priv
->use_count
> 0)
2011 mutex_lock(&ar8xxx_dev_list_lock
);
2012 list_del(&priv
->list
);
2013 mutex_unlock(&ar8xxx_dev_list_lock
);
2015 unregister_switch(&priv
->dev
);
2016 ar8xxx_mib_stop(priv
);
2020 #if LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)
2022 ar8xxx_phy_soft_reset(struct phy_device
*phydev
)
2024 /* we don't need an extra reset */
2029 static struct phy_driver ar8xxx_phy_driver
= {
2030 .phy_id
= 0x004d0000,
2031 .name
= "Atheros AR8216/AR8236/AR8316",
2032 .phy_id_mask
= 0xffff0000,
2033 .features
= PHY_BASIC_FEATURES
,
2034 .probe
= ar8xxx_phy_probe
,
2035 .remove
= ar8xxx_phy_remove
,
2036 .detach
= ar8xxx_phy_detach
,
2037 .config_init
= ar8xxx_phy_config_init
,
2038 .config_aneg
= ar8xxx_phy_config_aneg
,
2039 .read_status
= ar8xxx_phy_read_status
,
2040 #if LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)
2041 .soft_reset
= ar8xxx_phy_soft_reset
,
2043 .driver
= { .owner
= THIS_MODULE
},
2049 return phy_driver_register(&ar8xxx_phy_driver
);
2055 phy_driver_unregister(&ar8xxx_phy_driver
);
2058 module_init(ar8xxx_init
);
2059 module_exit(ar8xxx_exit
);
2060 MODULE_LICENSE("GPL");