[TG3]: Fix performance regression on 5705.
[linux-2.6.git] / drivers / net / tg3.c
1 /*
2  * tg3.c: Broadcom Tigon3 ethernet driver.
3  *
4  * Copyright (C) 2001, 2002, 2003, 2004 David S. Miller (davem@redhat.com)
5  * Copyright (C) 2001, 2002, 2003 Jeff Garzik (jgarzik@pobox.com)
6  * Copyright (C) 2004 Sun Microsystems Inc.
7  * Copyright (C) 2005-2007 Broadcom Corporation.
8  *
9  * Firmware is:
10  *      Derived from proprietary unpublished source code,
11  *      Copyright (C) 2000-2003 Broadcom Corporation.
12  *
13  *      Permission is hereby granted for the distribution of this firmware
14  *      data in hexadecimal or equivalent format, provided this copyright
15  *      notice is accompanying it.
16  */
17
18
19 #include <linux/module.h>
20 #include <linux/moduleparam.h>
21 #include <linux/kernel.h>
22 #include <linux/types.h>
23 #include <linux/compiler.h>
24 #include <linux/slab.h>
25 #include <linux/delay.h>
26 #include <linux/in.h>
27 #include <linux/init.h>
28 #include <linux/ioport.h>
29 #include <linux/pci.h>
30 #include <linux/netdevice.h>
31 #include <linux/etherdevice.h>
32 #include <linux/skbuff.h>
33 #include <linux/ethtool.h>
34 #include <linux/mii.h>
35 #include <linux/if_vlan.h>
36 #include <linux/ip.h>
37 #include <linux/tcp.h>
38 #include <linux/workqueue.h>
39 #include <linux/prefetch.h>
40 #include <linux/dma-mapping.h>
41
42 #include <net/checksum.h>
43 #include <net/ip.h>
44
45 #include <asm/system.h>
46 #include <asm/io.h>
47 #include <asm/byteorder.h>
48 #include <asm/uaccess.h>
49
50 #ifdef CONFIG_SPARC
51 #include <asm/idprom.h>
52 #include <asm/prom.h>
53 #endif
54
55 #if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
56 #define TG3_VLAN_TAG_USED 1
57 #else
58 #define TG3_VLAN_TAG_USED 0
59 #endif
60
61 #define TG3_TSO_SUPPORT 1
62
63 #include "tg3.h"
64
65 #define DRV_MODULE_NAME         "tg3"
66 #define PFX DRV_MODULE_NAME     ": "
67 #define DRV_MODULE_VERSION      "3.84"
68 #define DRV_MODULE_RELDATE      "October 12, 2007"
69
70 #define TG3_DEF_MAC_MODE        0
71 #define TG3_DEF_RX_MODE         0
72 #define TG3_DEF_TX_MODE         0
73 #define TG3_DEF_MSG_ENABLE        \
74         (NETIF_MSG_DRV          | \
75          NETIF_MSG_PROBE        | \
76          NETIF_MSG_LINK         | \
77          NETIF_MSG_TIMER        | \
78          NETIF_MSG_IFDOWN       | \
79          NETIF_MSG_IFUP         | \
80          NETIF_MSG_RX_ERR       | \
81          NETIF_MSG_TX_ERR)
82
83 /* length of time before we decide the hardware is borked,
84  * and dev->tx_timeout() should be called to fix the problem
85  */
86 #define TG3_TX_TIMEOUT                  (5 * HZ)
87
88 /* hardware minimum and maximum for a single frame's data payload */
89 #define TG3_MIN_MTU                     60
90 #define TG3_MAX_MTU(tp) \
91         ((tp->tg3_flags2 & TG3_FLG2_JUMBO_CAPABLE) ? 9000 : 1500)
92
93 /* These numbers seem to be hard coded in the NIC firmware somehow.
94  * You can't change the ring sizes, but you can change where you place
95  * them in the NIC onboard memory.
96  */
97 #define TG3_RX_RING_SIZE                512
98 #define TG3_DEF_RX_RING_PENDING         200
99 #define TG3_RX_JUMBO_RING_SIZE          256
100 #define TG3_DEF_RX_JUMBO_RING_PENDING   100
101
102 /* Do not place this n-ring entries value into the tp struct itself,
103  * we really want to expose these constants to GCC so that modulo et
104  * al.  operations are done with shifts and masks instead of with
105  * hw multiply/modulo instructions.  Another solution would be to
106  * replace things like '% foo' with '& (foo - 1)'.
107  */
108 #define TG3_RX_RCB_RING_SIZE(tp)        \
109         ((tp->tg3_flags2 & TG3_FLG2_5705_PLUS) ?  512 : 1024)
110
111 #define TG3_TX_RING_SIZE                512
112 #define TG3_DEF_TX_RING_PENDING         (TG3_TX_RING_SIZE - 1)
113
114 #define TG3_RX_RING_BYTES       (sizeof(struct tg3_rx_buffer_desc) * \
115                                  TG3_RX_RING_SIZE)
116 #define TG3_RX_JUMBO_RING_BYTES (sizeof(struct tg3_rx_buffer_desc) * \
117                                  TG3_RX_JUMBO_RING_SIZE)
118 #define TG3_RX_RCB_RING_BYTES(tp) (sizeof(struct tg3_rx_buffer_desc) * \
119                                    TG3_RX_RCB_RING_SIZE(tp))
120 #define TG3_TX_RING_BYTES       (sizeof(struct tg3_tx_buffer_desc) * \
121                                  TG3_TX_RING_SIZE)
122 #define NEXT_TX(N)              (((N) + 1) & (TG3_TX_RING_SIZE - 1))
123
124 #define RX_PKT_BUF_SZ           (1536 + tp->rx_offset + 64)
125 #define RX_JUMBO_PKT_BUF_SZ     (9046 + tp->rx_offset + 64)
126
127 /* minimum number of free TX descriptors required to wake up TX process */
128 #define TG3_TX_WAKEUP_THRESH(tp)                ((tp)->tx_pending / 4)
129
130 /* number of ETHTOOL_GSTATS u64's */
131 #define TG3_NUM_STATS           (sizeof(struct tg3_ethtool_stats)/sizeof(u64))
132
133 #define TG3_NUM_TEST            6
134
135 static char version[] __devinitdata =
136         DRV_MODULE_NAME ".c:v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")\n";
137
138 MODULE_AUTHOR("David S. Miller (davem@redhat.com) and Jeff Garzik (jgarzik@pobox.com)");
139 MODULE_DESCRIPTION("Broadcom Tigon3 ethernet driver");
140 MODULE_LICENSE("GPL");
141 MODULE_VERSION(DRV_MODULE_VERSION);
142
143 static int tg3_debug = -1;      /* -1 == use TG3_DEF_MSG_ENABLE as value */
144 module_param(tg3_debug, int, 0);
145 MODULE_PARM_DESC(tg3_debug, "Tigon3 bitmapped debugging message enable value");
146
147 static struct pci_device_id tg3_pci_tbl[] = {
148         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5700)},
149         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5701)},
150         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5702)},
151         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5703)},
152         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5704)},
153         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5702FE)},
154         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5705)},
155         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5705_2)},
156         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5705M)},
157         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5705M_2)},
158         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5702X)},
159         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5703X)},
160         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5704S)},
161         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5702A3)},
162         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5703A3)},
163         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5782)},
164         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5788)},
165         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5789)},
166         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5901)},
167         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5901_2)},
168         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5704S_2)},
169         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5705F)},
170         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5720)},
171         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5721)},
172         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5722)},
173         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5750)},
174         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5751)},
175         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5750M)},
176         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5751M)},
177         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5751F)},
178         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5752)},
179         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5752M)},
180         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5753)},
181         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5753M)},
182         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5753F)},
183         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5754)},
184         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5754M)},
185         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5755)},
186         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5755M)},
187         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5756)},
188         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5786)},
189         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5787)},
190         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5787M)},
191         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5787F)},
192         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5714)},
193         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5714S)},
194         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5715)},
195         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5715S)},
196         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5780)},
197         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5780S)},
198         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5781)},
199         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5906)},
200         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5906M)},
201         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5784)},
202         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5764)},
203         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5761)},
204         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5761E)},
205         {PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, PCI_DEVICE_ID_SYSKONNECT_9DXX)},
206         {PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, PCI_DEVICE_ID_SYSKONNECT_9MXX)},
207         {PCI_DEVICE(PCI_VENDOR_ID_ALTIMA, PCI_DEVICE_ID_ALTIMA_AC1000)},
208         {PCI_DEVICE(PCI_VENDOR_ID_ALTIMA, PCI_DEVICE_ID_ALTIMA_AC1001)},
209         {PCI_DEVICE(PCI_VENDOR_ID_ALTIMA, PCI_DEVICE_ID_ALTIMA_AC1003)},
210         {PCI_DEVICE(PCI_VENDOR_ID_ALTIMA, PCI_DEVICE_ID_ALTIMA_AC9100)},
211         {PCI_DEVICE(PCI_VENDOR_ID_APPLE, PCI_DEVICE_ID_APPLE_TIGON3)},
212         {}
213 };
214
215 MODULE_DEVICE_TABLE(pci, tg3_pci_tbl);
216
217 static const struct {
218         const char string[ETH_GSTRING_LEN];
219 } ethtool_stats_keys[TG3_NUM_STATS] = {
220         { "rx_octets" },
221         { "rx_fragments" },
222         { "rx_ucast_packets" },
223         { "rx_mcast_packets" },
224         { "rx_bcast_packets" },
225         { "rx_fcs_errors" },
226         { "rx_align_errors" },
227         { "rx_xon_pause_rcvd" },
228         { "rx_xoff_pause_rcvd" },
229         { "rx_mac_ctrl_rcvd" },
230         { "rx_xoff_entered" },
231         { "rx_frame_too_long_errors" },
232         { "rx_jabbers" },
233         { "rx_undersize_packets" },
234         { "rx_in_length_errors" },
235         { "rx_out_length_errors" },
236         { "rx_64_or_less_octet_packets" },
237         { "rx_65_to_127_octet_packets" },
238         { "rx_128_to_255_octet_packets" },
239         { "rx_256_to_511_octet_packets" },
240         { "rx_512_to_1023_octet_packets" },
241         { "rx_1024_to_1522_octet_packets" },
242         { "rx_1523_to_2047_octet_packets" },
243         { "rx_2048_to_4095_octet_packets" },
244         { "rx_4096_to_8191_octet_packets" },
245         { "rx_8192_to_9022_octet_packets" },
246
247         { "tx_octets" },
248         { "tx_collisions" },
249
250         { "tx_xon_sent" },
251         { "tx_xoff_sent" },
252         { "tx_flow_control" },
253         { "tx_mac_errors" },
254         { "tx_single_collisions" },
255         { "tx_mult_collisions" },
256         { "tx_deferred" },
257         { "tx_excessive_collisions" },
258         { "tx_late_collisions" },
259         { "tx_collide_2times" },
260         { "tx_collide_3times" },
261         { "tx_collide_4times" },
262         { "tx_collide_5times" },
263         { "tx_collide_6times" },
264         { "tx_collide_7times" },
265         { "tx_collide_8times" },
266         { "tx_collide_9times" },
267         { "tx_collide_10times" },
268         { "tx_collide_11times" },
269         { "tx_collide_12times" },
270         { "tx_collide_13times" },
271         { "tx_collide_14times" },
272         { "tx_collide_15times" },
273         { "tx_ucast_packets" },
274         { "tx_mcast_packets" },
275         { "tx_bcast_packets" },
276         { "tx_carrier_sense_errors" },
277         { "tx_discards" },
278         { "tx_errors" },
279
280         { "dma_writeq_full" },
281         { "dma_write_prioq_full" },
282         { "rxbds_empty" },
283         { "rx_discards" },
284         { "rx_errors" },
285         { "rx_threshold_hit" },
286
287         { "dma_readq_full" },
288         { "dma_read_prioq_full" },
289         { "tx_comp_queue_full" },
290
291         { "ring_set_send_prod_index" },
292         { "ring_status_update" },
293         { "nic_irqs" },
294         { "nic_avoided_irqs" },
295         { "nic_tx_threshold_hit" }
296 };
297
298 static const struct {
299         const char string[ETH_GSTRING_LEN];
300 } ethtool_test_keys[TG3_NUM_TEST] = {
301         { "nvram test     (online) " },
302         { "link test      (online) " },
303         { "register test  (offline)" },
304         { "memory test    (offline)" },
305         { "loopback test  (offline)" },
306         { "interrupt test (offline)" },
307 };
308
309 static void tg3_write32(struct tg3 *tp, u32 off, u32 val)
310 {
311         writel(val, tp->regs + off);
312 }
313
314 static u32 tg3_read32(struct tg3 *tp, u32 off)
315 {
316         return (readl(tp->regs + off));
317 }
318
319 static void tg3_ape_write32(struct tg3 *tp, u32 off, u32 val)
320 {
321         writel(val, tp->aperegs + off);
322 }
323
324 static u32 tg3_ape_read32(struct tg3 *tp, u32 off)
325 {
326         return (readl(tp->aperegs + off));
327 }
328
329 static void tg3_write_indirect_reg32(struct tg3 *tp, u32 off, u32 val)
330 {
331         unsigned long flags;
332
333         spin_lock_irqsave(&tp->indirect_lock, flags);
334         pci_write_config_dword(tp->pdev, TG3PCI_REG_BASE_ADDR, off);
335         pci_write_config_dword(tp->pdev, TG3PCI_REG_DATA, val);
336         spin_unlock_irqrestore(&tp->indirect_lock, flags);
337 }
338
339 static void tg3_write_flush_reg32(struct tg3 *tp, u32 off, u32 val)
340 {
341         writel(val, tp->regs + off);
342         readl(tp->regs + off);
343 }
344
345 static u32 tg3_read_indirect_reg32(struct tg3 *tp, u32 off)
346 {
347         unsigned long flags;
348         u32 val;
349
350         spin_lock_irqsave(&tp->indirect_lock, flags);
351         pci_write_config_dword(tp->pdev, TG3PCI_REG_BASE_ADDR, off);
352         pci_read_config_dword(tp->pdev, TG3PCI_REG_DATA, &val);
353         spin_unlock_irqrestore(&tp->indirect_lock, flags);
354         return val;
355 }
356
357 static void tg3_write_indirect_mbox(struct tg3 *tp, u32 off, u32 val)
358 {
359         unsigned long flags;
360
361         if (off == (MAILBOX_RCVRET_CON_IDX_0 + TG3_64BIT_REG_LOW)) {
362                 pci_write_config_dword(tp->pdev, TG3PCI_RCV_RET_RING_CON_IDX +
363                                        TG3_64BIT_REG_LOW, val);
364                 return;
365         }
366         if (off == (MAILBOX_RCV_STD_PROD_IDX + TG3_64BIT_REG_LOW)) {
367                 pci_write_config_dword(tp->pdev, TG3PCI_STD_RING_PROD_IDX +
368                                        TG3_64BIT_REG_LOW, val);
369                 return;
370         }
371
372         spin_lock_irqsave(&tp->indirect_lock, flags);
373         pci_write_config_dword(tp->pdev, TG3PCI_REG_BASE_ADDR, off + 0x5600);
374         pci_write_config_dword(tp->pdev, TG3PCI_REG_DATA, val);
375         spin_unlock_irqrestore(&tp->indirect_lock, flags);
376
377         /* In indirect mode when disabling interrupts, we also need
378          * to clear the interrupt bit in the GRC local ctrl register.
379          */
380         if ((off == (MAILBOX_INTERRUPT_0 + TG3_64BIT_REG_LOW)) &&
381             (val == 0x1)) {
382                 pci_write_config_dword(tp->pdev, TG3PCI_MISC_LOCAL_CTRL,
383                                        tp->grc_local_ctrl|GRC_LCLCTRL_CLEARINT);
384         }
385 }
386
387 static u32 tg3_read_indirect_mbox(struct tg3 *tp, u32 off)
388 {
389         unsigned long flags;
390         u32 val;
391
392         spin_lock_irqsave(&tp->indirect_lock, flags);
393         pci_write_config_dword(tp->pdev, TG3PCI_REG_BASE_ADDR, off + 0x5600);
394         pci_read_config_dword(tp->pdev, TG3PCI_REG_DATA, &val);
395         spin_unlock_irqrestore(&tp->indirect_lock, flags);
396         return val;
397 }
398
399 /* usec_wait specifies the wait time in usec when writing to certain registers
400  * where it is unsafe to read back the register without some delay.
401  * GRC_LOCAL_CTRL is one example if the GPIOs are toggled to switch power.
402  * TG3PCI_CLOCK_CTRL is another example if the clock frequencies are changed.
403  */
404 static void _tw32_flush(struct tg3 *tp, u32 off, u32 val, u32 usec_wait)
405 {
406         if ((tp->tg3_flags & TG3_FLAG_PCIX_TARGET_HWBUG) ||
407             (tp->tg3_flags2 & TG3_FLG2_ICH_WORKAROUND))
408                 /* Non-posted methods */
409                 tp->write32(tp, off, val);
410         else {
411                 /* Posted method */
412                 tg3_write32(tp, off, val);
413                 if (usec_wait)
414                         udelay(usec_wait);
415                 tp->read32(tp, off);
416         }
417         /* Wait again after the read for the posted method to guarantee that
418          * the wait time is met.
419          */
420         if (usec_wait)
421                 udelay(usec_wait);
422 }
423
424 static inline void tw32_mailbox_flush(struct tg3 *tp, u32 off, u32 val)
425 {
426         tp->write32_mbox(tp, off, val);
427         if (!(tp->tg3_flags & TG3_FLAG_MBOX_WRITE_REORDER) &&
428             !(tp->tg3_flags2 & TG3_FLG2_ICH_WORKAROUND))
429                 tp->read32_mbox(tp, off);
430 }
431
432 static void tg3_write32_tx_mbox(struct tg3 *tp, u32 off, u32 val)
433 {
434         void __iomem *mbox = tp->regs + off;
435         writel(val, mbox);
436         if (tp->tg3_flags & TG3_FLAG_TXD_MBOX_HWBUG)
437                 writel(val, mbox);
438         if (tp->tg3_flags & TG3_FLAG_MBOX_WRITE_REORDER)
439                 readl(mbox);
440 }
441
442 static u32 tg3_read32_mbox_5906(struct tg3 *tp, u32 off)
443 {
444         return (readl(tp->regs + off + GRCMBOX_BASE));
445 }
446
447 static void tg3_write32_mbox_5906(struct tg3 *tp, u32 off, u32 val)
448 {
449         writel(val, tp->regs + off + GRCMBOX_BASE);
450 }
451
452 #define tw32_mailbox(reg, val)  tp->write32_mbox(tp, reg, val)
453 #define tw32_mailbox_f(reg, val)        tw32_mailbox_flush(tp, (reg), (val))
454 #define tw32_rx_mbox(reg, val)  tp->write32_rx_mbox(tp, reg, val)
455 #define tw32_tx_mbox(reg, val)  tp->write32_tx_mbox(tp, reg, val)
456 #define tr32_mailbox(reg)       tp->read32_mbox(tp, reg)
457
458 #define tw32(reg,val)           tp->write32(tp, reg, val)
459 #define tw32_f(reg,val)         _tw32_flush(tp,(reg),(val), 0)
460 #define tw32_wait_f(reg,val,us) _tw32_flush(tp,(reg),(val), (us))
461 #define tr32(reg)               tp->read32(tp, reg)
462
463 static void tg3_write_mem(struct tg3 *tp, u32 off, u32 val)
464 {
465         unsigned long flags;
466
467         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) &&
468             (off >= NIC_SRAM_STATS_BLK) && (off < NIC_SRAM_TX_BUFFER_DESC))
469                 return;
470
471         spin_lock_irqsave(&tp->indirect_lock, flags);
472         if (tp->tg3_flags & TG3_FLAG_SRAM_USE_CONFIG) {
473                 pci_write_config_dword(tp->pdev, TG3PCI_MEM_WIN_BASE_ADDR, off);
474                 pci_write_config_dword(tp->pdev, TG3PCI_MEM_WIN_DATA, val);
475
476                 /* Always leave this as zero. */
477                 pci_write_config_dword(tp->pdev, TG3PCI_MEM_WIN_BASE_ADDR, 0);
478         } else {
479                 tw32_f(TG3PCI_MEM_WIN_BASE_ADDR, off);
480                 tw32_f(TG3PCI_MEM_WIN_DATA, val);
481
482                 /* Always leave this as zero. */
483                 tw32_f(TG3PCI_MEM_WIN_BASE_ADDR, 0);
484         }
485         spin_unlock_irqrestore(&tp->indirect_lock, flags);
486 }
487
488 static void tg3_read_mem(struct tg3 *tp, u32 off, u32 *val)
489 {
490         unsigned long flags;
491
492         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) &&
493             (off >= NIC_SRAM_STATS_BLK) && (off < NIC_SRAM_TX_BUFFER_DESC)) {
494                 *val = 0;
495                 return;
496         }
497
498         spin_lock_irqsave(&tp->indirect_lock, flags);
499         if (tp->tg3_flags & TG3_FLAG_SRAM_USE_CONFIG) {
500                 pci_write_config_dword(tp->pdev, TG3PCI_MEM_WIN_BASE_ADDR, off);
501                 pci_read_config_dword(tp->pdev, TG3PCI_MEM_WIN_DATA, val);
502
503                 /* Always leave this as zero. */
504                 pci_write_config_dword(tp->pdev, TG3PCI_MEM_WIN_BASE_ADDR, 0);
505         } else {
506                 tw32_f(TG3PCI_MEM_WIN_BASE_ADDR, off);
507                 *val = tr32(TG3PCI_MEM_WIN_DATA);
508
509                 /* Always leave this as zero. */
510                 tw32_f(TG3PCI_MEM_WIN_BASE_ADDR, 0);
511         }
512         spin_unlock_irqrestore(&tp->indirect_lock, flags);
513 }
514
515 static void tg3_ape_lock_init(struct tg3 *tp)
516 {
517         int i;
518
519         /* Make sure the driver hasn't any stale locks. */
520         for (i = 0; i < 8; i++)
521                 tg3_ape_write32(tp, TG3_APE_LOCK_GRANT + 4 * i,
522                                 APE_LOCK_GRANT_DRIVER);
523 }
524
525 static int tg3_ape_lock(struct tg3 *tp, int locknum)
526 {
527         int i, off;
528         int ret = 0;
529         u32 status;
530
531         if (!(tp->tg3_flags3 & TG3_FLG3_ENABLE_APE))
532                 return 0;
533
534         switch (locknum) {
535                 case TG3_APE_LOCK_MEM:
536                         break;
537                 default:
538                         return -EINVAL;
539         }
540
541         off = 4 * locknum;
542
543         tg3_ape_write32(tp, TG3_APE_LOCK_REQ + off, APE_LOCK_REQ_DRIVER);
544
545         /* Wait for up to 1 millisecond to acquire lock. */
546         for (i = 0; i < 100; i++) {
547                 status = tg3_ape_read32(tp, TG3_APE_LOCK_GRANT + off);
548                 if (status == APE_LOCK_GRANT_DRIVER)
549                         break;
550                 udelay(10);
551         }
552
553         if (status != APE_LOCK_GRANT_DRIVER) {
554                 /* Revoke the lock request. */
555                 tg3_ape_write32(tp, TG3_APE_LOCK_GRANT + off,
556                                 APE_LOCK_GRANT_DRIVER);
557
558                 ret = -EBUSY;
559         }
560
561         return ret;
562 }
563
564 static void tg3_ape_unlock(struct tg3 *tp, int locknum)
565 {
566         int off;
567
568         if (!(tp->tg3_flags3 & TG3_FLG3_ENABLE_APE))
569                 return;
570
571         switch (locknum) {
572                 case TG3_APE_LOCK_MEM:
573                         break;
574                 default:
575                         return;
576         }
577
578         off = 4 * locknum;
579         tg3_ape_write32(tp, TG3_APE_LOCK_GRANT + off, APE_LOCK_GRANT_DRIVER);
580 }
581
582 static void tg3_disable_ints(struct tg3 *tp)
583 {
584         tw32(TG3PCI_MISC_HOST_CTRL,
585              (tp->misc_host_ctrl | MISC_HOST_CTRL_MASK_PCI_INT));
586         tw32_mailbox_f(MAILBOX_INTERRUPT_0 + TG3_64BIT_REG_LOW, 0x00000001);
587 }
588
589 static inline void tg3_cond_int(struct tg3 *tp)
590 {
591         if (!(tp->tg3_flags & TG3_FLAG_TAGGED_STATUS) &&
592             (tp->hw_status->status & SD_STATUS_UPDATED))
593                 tw32(GRC_LOCAL_CTRL, tp->grc_local_ctrl | GRC_LCLCTRL_SETINT);
594         else
595                 tw32(HOSTCC_MODE, tp->coalesce_mode |
596                      (HOSTCC_MODE_ENABLE | HOSTCC_MODE_NOW));
597 }
598
599 static void tg3_enable_ints(struct tg3 *tp)
600 {
601         tp->irq_sync = 0;
602         wmb();
603
604         tw32(TG3PCI_MISC_HOST_CTRL,
605              (tp->misc_host_ctrl & ~MISC_HOST_CTRL_MASK_PCI_INT));
606         tw32_mailbox_f(MAILBOX_INTERRUPT_0 + TG3_64BIT_REG_LOW,
607                        (tp->last_tag << 24));
608         if (tp->tg3_flags2 & TG3_FLG2_1SHOT_MSI)
609                 tw32_mailbox_f(MAILBOX_INTERRUPT_0 + TG3_64BIT_REG_LOW,
610                                (tp->last_tag << 24));
611         tg3_cond_int(tp);
612 }
613
614 static inline unsigned int tg3_has_work(struct tg3 *tp)
615 {
616         struct tg3_hw_status *sblk = tp->hw_status;
617         unsigned int work_exists = 0;
618
619         /* check for phy events */
620         if (!(tp->tg3_flags &
621               (TG3_FLAG_USE_LINKCHG_REG |
622                TG3_FLAG_POLL_SERDES))) {
623                 if (sblk->status & SD_STATUS_LINK_CHG)
624                         work_exists = 1;
625         }
626         /* check for RX/TX work to do */
627         if (sblk->idx[0].tx_consumer != tp->tx_cons ||
628             sblk->idx[0].rx_producer != tp->rx_rcb_ptr)
629                 work_exists = 1;
630
631         return work_exists;
632 }
633
634 /* tg3_restart_ints
635  *  similar to tg3_enable_ints, but it accurately determines whether there
636  *  is new work pending and can return without flushing the PIO write
637  *  which reenables interrupts
638  */
639 static void tg3_restart_ints(struct tg3 *tp)
640 {
641         tw32_mailbox(MAILBOX_INTERRUPT_0 + TG3_64BIT_REG_LOW,
642                      tp->last_tag << 24);
643         mmiowb();
644
645         /* When doing tagged status, this work check is unnecessary.
646          * The last_tag we write above tells the chip which piece of
647          * work we've completed.
648          */
649         if (!(tp->tg3_flags & TG3_FLAG_TAGGED_STATUS) &&
650             tg3_has_work(tp))
651                 tw32(HOSTCC_MODE, tp->coalesce_mode |
652                      (HOSTCC_MODE_ENABLE | HOSTCC_MODE_NOW));
653 }
654
655 static inline void tg3_netif_stop(struct tg3 *tp)
656 {
657         tp->dev->trans_start = jiffies; /* prevent tx timeout */
658         napi_disable(&tp->napi);
659         netif_tx_disable(tp->dev);
660 }
661
662 static inline void tg3_netif_start(struct tg3 *tp)
663 {
664         netif_wake_queue(tp->dev);
665         /* NOTE: unconditional netif_wake_queue is only appropriate
666          * so long as all callers are assured to have free tx slots
667          * (such as after tg3_init_hw)
668          */
669         napi_enable(&tp->napi);
670         tp->hw_status->status |= SD_STATUS_UPDATED;
671         tg3_enable_ints(tp);
672 }
673
674 static void tg3_switch_clocks(struct tg3 *tp)
675 {
676         u32 clock_ctrl = tr32(TG3PCI_CLOCK_CTRL);
677         u32 orig_clock_ctrl;
678
679         if ((tp->tg3_flags & TG3_FLAG_CPMU_PRESENT) ||
680             (tp->tg3_flags2 & TG3_FLG2_5780_CLASS))
681                 return;
682
683         orig_clock_ctrl = clock_ctrl;
684         clock_ctrl &= (CLOCK_CTRL_FORCE_CLKRUN |
685                        CLOCK_CTRL_CLKRUN_OENABLE |
686                        0x1f);
687         tp->pci_clock_ctrl = clock_ctrl;
688
689         if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS) {
690                 if (orig_clock_ctrl & CLOCK_CTRL_625_CORE) {
691                         tw32_wait_f(TG3PCI_CLOCK_CTRL,
692                                     clock_ctrl | CLOCK_CTRL_625_CORE, 40);
693                 }
694         } else if ((orig_clock_ctrl & CLOCK_CTRL_44MHZ_CORE) != 0) {
695                 tw32_wait_f(TG3PCI_CLOCK_CTRL,
696                             clock_ctrl |
697                             (CLOCK_CTRL_44MHZ_CORE | CLOCK_CTRL_ALTCLK),
698                             40);
699                 tw32_wait_f(TG3PCI_CLOCK_CTRL,
700                             clock_ctrl | (CLOCK_CTRL_ALTCLK),
701                             40);
702         }
703         tw32_wait_f(TG3PCI_CLOCK_CTRL, clock_ctrl, 40);
704 }
705
706 #define PHY_BUSY_LOOPS  5000
707
708 static int tg3_readphy(struct tg3 *tp, int reg, u32 *val)
709 {
710         u32 frame_val;
711         unsigned int loops;
712         int ret;
713
714         if ((tp->mi_mode & MAC_MI_MODE_AUTO_POLL) != 0) {
715                 tw32_f(MAC_MI_MODE,
716                      (tp->mi_mode & ~MAC_MI_MODE_AUTO_POLL));
717                 udelay(80);
718         }
719
720         *val = 0x0;
721
722         frame_val  = ((PHY_ADDR << MI_COM_PHY_ADDR_SHIFT) &
723                       MI_COM_PHY_ADDR_MASK);
724         frame_val |= ((reg << MI_COM_REG_ADDR_SHIFT) &
725                       MI_COM_REG_ADDR_MASK);
726         frame_val |= (MI_COM_CMD_READ | MI_COM_START);
727
728         tw32_f(MAC_MI_COM, frame_val);
729
730         loops = PHY_BUSY_LOOPS;
731         while (loops != 0) {
732                 udelay(10);
733                 frame_val = tr32(MAC_MI_COM);
734
735                 if ((frame_val & MI_COM_BUSY) == 0) {
736                         udelay(5);
737                         frame_val = tr32(MAC_MI_COM);
738                         break;
739                 }
740                 loops -= 1;
741         }
742
743         ret = -EBUSY;
744         if (loops != 0) {
745                 *val = frame_val & MI_COM_DATA_MASK;
746                 ret = 0;
747         }
748
749         if ((tp->mi_mode & MAC_MI_MODE_AUTO_POLL) != 0) {
750                 tw32_f(MAC_MI_MODE, tp->mi_mode);
751                 udelay(80);
752         }
753
754         return ret;
755 }
756
757 static int tg3_writephy(struct tg3 *tp, int reg, u32 val)
758 {
759         u32 frame_val;
760         unsigned int loops;
761         int ret;
762
763         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906 &&
764             (reg == MII_TG3_CTRL || reg == MII_TG3_AUX_CTRL))
765                 return 0;
766
767         if ((tp->mi_mode & MAC_MI_MODE_AUTO_POLL) != 0) {
768                 tw32_f(MAC_MI_MODE,
769                      (tp->mi_mode & ~MAC_MI_MODE_AUTO_POLL));
770                 udelay(80);
771         }
772
773         frame_val  = ((PHY_ADDR << MI_COM_PHY_ADDR_SHIFT) &
774                       MI_COM_PHY_ADDR_MASK);
775         frame_val |= ((reg << MI_COM_REG_ADDR_SHIFT) &
776                       MI_COM_REG_ADDR_MASK);
777         frame_val |= (val & MI_COM_DATA_MASK);
778         frame_val |= (MI_COM_CMD_WRITE | MI_COM_START);
779
780         tw32_f(MAC_MI_COM, frame_val);
781
782         loops = PHY_BUSY_LOOPS;
783         while (loops != 0) {
784                 udelay(10);
785                 frame_val = tr32(MAC_MI_COM);
786                 if ((frame_val & MI_COM_BUSY) == 0) {
787                         udelay(5);
788                         frame_val = tr32(MAC_MI_COM);
789                         break;
790                 }
791                 loops -= 1;
792         }
793
794         ret = -EBUSY;
795         if (loops != 0)
796                 ret = 0;
797
798         if ((tp->mi_mode & MAC_MI_MODE_AUTO_POLL) != 0) {
799                 tw32_f(MAC_MI_MODE, tp->mi_mode);
800                 udelay(80);
801         }
802
803         return ret;
804 }
805
806 static void tg3_phy_toggle_automdix(struct tg3 *tp, int enable)
807 {
808         u32 phy;
809
810         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS) ||
811             (tp->tg3_flags2 & TG3_FLG2_ANY_SERDES))
812                 return;
813
814         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
815                 u32 ephy;
816
817                 if (!tg3_readphy(tp, MII_TG3_EPHY_TEST, &ephy)) {
818                         tg3_writephy(tp, MII_TG3_EPHY_TEST,
819                                      ephy | MII_TG3_EPHY_SHADOW_EN);
820                         if (!tg3_readphy(tp, MII_TG3_EPHYTST_MISCCTRL, &phy)) {
821                                 if (enable)
822                                         phy |= MII_TG3_EPHYTST_MISCCTRL_MDIX;
823                                 else
824                                         phy &= ~MII_TG3_EPHYTST_MISCCTRL_MDIX;
825                                 tg3_writephy(tp, MII_TG3_EPHYTST_MISCCTRL, phy);
826                         }
827                         tg3_writephy(tp, MII_TG3_EPHY_TEST, ephy);
828                 }
829         } else {
830                 phy = MII_TG3_AUXCTL_MISC_RDSEL_MISC |
831                       MII_TG3_AUXCTL_SHDWSEL_MISC;
832                 if (!tg3_writephy(tp, MII_TG3_AUX_CTRL, phy) &&
833                     !tg3_readphy(tp, MII_TG3_AUX_CTRL, &phy)) {
834                         if (enable)
835                                 phy |= MII_TG3_AUXCTL_MISC_FORCE_AMDIX;
836                         else
837                                 phy &= ~MII_TG3_AUXCTL_MISC_FORCE_AMDIX;
838                         phy |= MII_TG3_AUXCTL_MISC_WREN;
839                         tg3_writephy(tp, MII_TG3_AUX_CTRL, phy);
840                 }
841         }
842 }
843
844 static void tg3_phy_set_wirespeed(struct tg3 *tp)
845 {
846         u32 val;
847
848         if (tp->tg3_flags2 & TG3_FLG2_NO_ETH_WIRE_SPEED)
849                 return;
850
851         if (!tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x7007) &&
852             !tg3_readphy(tp, MII_TG3_AUX_CTRL, &val))
853                 tg3_writephy(tp, MII_TG3_AUX_CTRL,
854                              (val | (1 << 15) | (1 << 4)));
855 }
856
857 static int tg3_bmcr_reset(struct tg3 *tp)
858 {
859         u32 phy_control;
860         int limit, err;
861
862         /* OK, reset it, and poll the BMCR_RESET bit until it
863          * clears or we time out.
864          */
865         phy_control = BMCR_RESET;
866         err = tg3_writephy(tp, MII_BMCR, phy_control);
867         if (err != 0)
868                 return -EBUSY;
869
870         limit = 5000;
871         while (limit--) {
872                 err = tg3_readphy(tp, MII_BMCR, &phy_control);
873                 if (err != 0)
874                         return -EBUSY;
875
876                 if ((phy_control & BMCR_RESET) == 0) {
877                         udelay(40);
878                         break;
879                 }
880                 udelay(10);
881         }
882         if (limit <= 0)
883                 return -EBUSY;
884
885         return 0;
886 }
887
888 static int tg3_wait_macro_done(struct tg3 *tp)
889 {
890         int limit = 100;
891
892         while (limit--) {
893                 u32 tmp32;
894
895                 if (!tg3_readphy(tp, 0x16, &tmp32)) {
896                         if ((tmp32 & 0x1000) == 0)
897                                 break;
898                 }
899         }
900         if (limit <= 0)
901                 return -EBUSY;
902
903         return 0;
904 }
905
906 static int tg3_phy_write_and_check_testpat(struct tg3 *tp, int *resetp)
907 {
908         static const u32 test_pat[4][6] = {
909         { 0x00005555, 0x00000005, 0x00002aaa, 0x0000000a, 0x00003456, 0x00000003 },
910         { 0x00002aaa, 0x0000000a, 0x00003333, 0x00000003, 0x0000789a, 0x00000005 },
911         { 0x00005a5a, 0x00000005, 0x00002a6a, 0x0000000a, 0x00001bcd, 0x00000003 },
912         { 0x00002a5a, 0x0000000a, 0x000033c3, 0x00000003, 0x00002ef1, 0x00000005 }
913         };
914         int chan;
915
916         for (chan = 0; chan < 4; chan++) {
917                 int i;
918
919                 tg3_writephy(tp, MII_TG3_DSP_ADDRESS,
920                              (chan * 0x2000) | 0x0200);
921                 tg3_writephy(tp, 0x16, 0x0002);
922
923                 for (i = 0; i < 6; i++)
924                         tg3_writephy(tp, MII_TG3_DSP_RW_PORT,
925                                      test_pat[chan][i]);
926
927                 tg3_writephy(tp, 0x16, 0x0202);
928                 if (tg3_wait_macro_done(tp)) {
929                         *resetp = 1;
930                         return -EBUSY;
931                 }
932
933                 tg3_writephy(tp, MII_TG3_DSP_ADDRESS,
934                              (chan * 0x2000) | 0x0200);
935                 tg3_writephy(tp, 0x16, 0x0082);
936                 if (tg3_wait_macro_done(tp)) {
937                         *resetp = 1;
938                         return -EBUSY;
939                 }
940
941                 tg3_writephy(tp, 0x16, 0x0802);
942                 if (tg3_wait_macro_done(tp)) {
943                         *resetp = 1;
944                         return -EBUSY;
945                 }
946
947                 for (i = 0; i < 6; i += 2) {
948                         u32 low, high;
949
950                         if (tg3_readphy(tp, MII_TG3_DSP_RW_PORT, &low) ||
951                             tg3_readphy(tp, MII_TG3_DSP_RW_PORT, &high) ||
952                             tg3_wait_macro_done(tp)) {
953                                 *resetp = 1;
954                                 return -EBUSY;
955                         }
956                         low &= 0x7fff;
957                         high &= 0x000f;
958                         if (low != test_pat[chan][i] ||
959                             high != test_pat[chan][i+1]) {
960                                 tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x000b);
961                                 tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x4001);
962                                 tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x4005);
963
964                                 return -EBUSY;
965                         }
966                 }
967         }
968
969         return 0;
970 }
971
972 static int tg3_phy_reset_chanpat(struct tg3 *tp)
973 {
974         int chan;
975
976         for (chan = 0; chan < 4; chan++) {
977                 int i;
978
979                 tg3_writephy(tp, MII_TG3_DSP_ADDRESS,
980                              (chan * 0x2000) | 0x0200);
981                 tg3_writephy(tp, 0x16, 0x0002);
982                 for (i = 0; i < 6; i++)
983                         tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x000);
984                 tg3_writephy(tp, 0x16, 0x0202);
985                 if (tg3_wait_macro_done(tp))
986                         return -EBUSY;
987         }
988
989         return 0;
990 }
991
992 static int tg3_phy_reset_5703_4_5(struct tg3 *tp)
993 {
994         u32 reg32, phy9_orig;
995         int retries, do_phy_reset, err;
996
997         retries = 10;
998         do_phy_reset = 1;
999         do {
1000                 if (do_phy_reset) {
1001                         err = tg3_bmcr_reset(tp);
1002                         if (err)
1003                                 return err;
1004                         do_phy_reset = 0;
1005                 }
1006
1007                 /* Disable transmitter and interrupt.  */
1008                 if (tg3_readphy(tp, MII_TG3_EXT_CTRL, &reg32))
1009                         continue;
1010
1011                 reg32 |= 0x3000;
1012                 tg3_writephy(tp, MII_TG3_EXT_CTRL, reg32);
1013
1014                 /* Set full-duplex, 1000 mbps.  */
1015                 tg3_writephy(tp, MII_BMCR,
1016                              BMCR_FULLDPLX | TG3_BMCR_SPEED1000);
1017
1018                 /* Set to master mode.  */
1019                 if (tg3_readphy(tp, MII_TG3_CTRL, &phy9_orig))
1020                         continue;
1021
1022                 tg3_writephy(tp, MII_TG3_CTRL,
1023                              (MII_TG3_CTRL_AS_MASTER |
1024                               MII_TG3_CTRL_ENABLE_AS_MASTER));
1025
1026                 /* Enable SM_DSP_CLOCK and 6dB.  */
1027                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x0c00);
1028
1029                 /* Block the PHY control access.  */
1030                 tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x8005);
1031                 tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x0800);
1032
1033                 err = tg3_phy_write_and_check_testpat(tp, &do_phy_reset);
1034                 if (!err)
1035                         break;
1036         } while (--retries);
1037
1038         err = tg3_phy_reset_chanpat(tp);
1039         if (err)
1040                 return err;
1041
1042         tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x8005);
1043         tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x0000);
1044
1045         tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x8200);
1046         tg3_writephy(tp, 0x16, 0x0000);
1047
1048         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703 ||
1049             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704) {
1050                 /* Set Extended packet length bit for jumbo frames */
1051                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x4400);
1052         }
1053         else {
1054                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x0400);
1055         }
1056
1057         tg3_writephy(tp, MII_TG3_CTRL, phy9_orig);
1058
1059         if (!tg3_readphy(tp, MII_TG3_EXT_CTRL, &reg32)) {
1060                 reg32 &= ~0x3000;
1061                 tg3_writephy(tp, MII_TG3_EXT_CTRL, reg32);
1062         } else if (!err)
1063                 err = -EBUSY;
1064
1065         return err;
1066 }
1067
1068 static void tg3_link_report(struct tg3 *);
1069
1070 /* This will reset the tigon3 PHY if there is no valid
1071  * link unless the FORCE argument is non-zero.
1072  */
1073 static int tg3_phy_reset(struct tg3 *tp)
1074 {
1075         u32 phy_status;
1076         int err;
1077
1078         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
1079                 u32 val;
1080
1081                 val = tr32(GRC_MISC_CFG);
1082                 tw32_f(GRC_MISC_CFG, val & ~GRC_MISC_CFG_EPHY_IDDQ);
1083                 udelay(40);
1084         }
1085         err  = tg3_readphy(tp, MII_BMSR, &phy_status);
1086         err |= tg3_readphy(tp, MII_BMSR, &phy_status);
1087         if (err != 0)
1088                 return -EBUSY;
1089
1090         if (netif_running(tp->dev) && netif_carrier_ok(tp->dev)) {
1091                 netif_carrier_off(tp->dev);
1092                 tg3_link_report(tp);
1093         }
1094
1095         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703 ||
1096             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704 ||
1097             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705) {
1098                 err = tg3_phy_reset_5703_4_5(tp);
1099                 if (err)
1100                         return err;
1101                 goto out;
1102         }
1103
1104         err = tg3_bmcr_reset(tp);
1105         if (err)
1106                 return err;
1107
1108 out:
1109         if (tp->tg3_flags2 & TG3_FLG2_PHY_ADC_BUG) {
1110                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x0c00);
1111                 tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x201f);
1112                 tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x2aaa);
1113                 tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x000a);
1114                 tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x0323);
1115                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x0400);
1116         }
1117         if (tp->tg3_flags2 & TG3_FLG2_PHY_5704_A0_BUG) {
1118                 tg3_writephy(tp, 0x1c, 0x8d68);
1119                 tg3_writephy(tp, 0x1c, 0x8d68);
1120         }
1121         if (tp->tg3_flags2 & TG3_FLG2_PHY_BER_BUG) {
1122                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x0c00);
1123                 tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x000a);
1124                 tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x310b);
1125                 tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x201f);
1126                 tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x9506);
1127                 tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x401f);
1128                 tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x14e2);
1129                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x0400);
1130         }
1131         else if (tp->tg3_flags2 & TG3_FLG2_PHY_JITTER_BUG) {
1132                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x0c00);
1133                 tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x000a);
1134                 if (tp->tg3_flags2 & TG3_FLG2_PHY_ADJUST_TRIM) {
1135                         tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x110b);
1136                         tg3_writephy(tp, MII_TG3_TEST1,
1137                                      MII_TG3_TEST1_TRIM_EN | 0x4);
1138                 } else
1139                         tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x010b);
1140                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x0400);
1141         }
1142         /* Set Extended packet length bit (bit 14) on all chips that */
1143         /* support jumbo frames */
1144         if ((tp->phy_id & PHY_ID_MASK) == PHY_ID_BCM5401) {
1145                 /* Cannot do read-modify-write on 5401 */
1146                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x4c20);
1147         } else if (tp->tg3_flags2 & TG3_FLG2_JUMBO_CAPABLE) {
1148                 u32 phy_reg;
1149
1150                 /* Set bit 14 with read-modify-write to preserve other bits */
1151                 if (!tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x0007) &&
1152                     !tg3_readphy(tp, MII_TG3_AUX_CTRL, &phy_reg))
1153                         tg3_writephy(tp, MII_TG3_AUX_CTRL, phy_reg | 0x4000);
1154         }
1155
1156         /* Set phy register 0x10 bit 0 to high fifo elasticity to support
1157          * jumbo frames transmission.
1158          */
1159         if (tp->tg3_flags2 & TG3_FLG2_JUMBO_CAPABLE) {
1160                 u32 phy_reg;
1161
1162                 if (!tg3_readphy(tp, MII_TG3_EXT_CTRL, &phy_reg))
1163                     tg3_writephy(tp, MII_TG3_EXT_CTRL,
1164                                  phy_reg | MII_TG3_EXT_CTRL_FIFO_ELASTIC);
1165         }
1166
1167         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
1168                 /* adjust output voltage */
1169                 tg3_writephy(tp, MII_TG3_EPHY_PTEST, 0x12);
1170         }
1171
1172         tg3_phy_toggle_automdix(tp, 1);
1173         tg3_phy_set_wirespeed(tp);
1174         return 0;
1175 }
1176
1177 static void tg3_frob_aux_power(struct tg3 *tp)
1178 {
1179         struct tg3 *tp_peer = tp;
1180
1181         if ((tp->tg3_flags2 & TG3_FLG2_IS_NIC) == 0)
1182                 return;
1183
1184         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704) ||
1185             (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5714)) {
1186                 struct net_device *dev_peer;
1187
1188                 dev_peer = pci_get_drvdata(tp->pdev_peer);
1189                 /* remove_one() may have been run on the peer. */
1190                 if (!dev_peer)
1191                         tp_peer = tp;
1192                 else
1193                         tp_peer = netdev_priv(dev_peer);
1194         }
1195
1196         if ((tp->tg3_flags & TG3_FLAG_WOL_ENABLE) != 0 ||
1197             (tp->tg3_flags & TG3_FLAG_ENABLE_ASF) != 0 ||
1198             (tp_peer->tg3_flags & TG3_FLAG_WOL_ENABLE) != 0 ||
1199             (tp_peer->tg3_flags & TG3_FLAG_ENABLE_ASF) != 0) {
1200                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
1201                     GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701) {
1202                         tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl |
1203                                     (GRC_LCLCTRL_GPIO_OE0 |
1204                                      GRC_LCLCTRL_GPIO_OE1 |
1205                                      GRC_LCLCTRL_GPIO_OE2 |
1206                                      GRC_LCLCTRL_GPIO_OUTPUT0 |
1207                                      GRC_LCLCTRL_GPIO_OUTPUT1),
1208                                     100);
1209                 } else {
1210                         u32 no_gpio2;
1211                         u32 grc_local_ctrl = 0;
1212
1213                         if (tp_peer != tp &&
1214                             (tp_peer->tg3_flags & TG3_FLAG_INIT_COMPLETE) != 0)
1215                                 return;
1216
1217                         /* Workaround to prevent overdrawing Amps. */
1218                         if (GET_ASIC_REV(tp->pci_chip_rev_id) ==
1219                             ASIC_REV_5714) {
1220                                 grc_local_ctrl |= GRC_LCLCTRL_GPIO_OE3;
1221                                 tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl |
1222                                             grc_local_ctrl, 100);
1223                         }
1224
1225                         /* On 5753 and variants, GPIO2 cannot be used. */
1226                         no_gpio2 = tp->nic_sram_data_cfg &
1227                                     NIC_SRAM_DATA_CFG_NO_GPIO2;
1228
1229                         grc_local_ctrl |= GRC_LCLCTRL_GPIO_OE0 |
1230                                          GRC_LCLCTRL_GPIO_OE1 |
1231                                          GRC_LCLCTRL_GPIO_OE2 |
1232                                          GRC_LCLCTRL_GPIO_OUTPUT1 |
1233                                          GRC_LCLCTRL_GPIO_OUTPUT2;
1234                         if (no_gpio2) {
1235                                 grc_local_ctrl &= ~(GRC_LCLCTRL_GPIO_OE2 |
1236                                                     GRC_LCLCTRL_GPIO_OUTPUT2);
1237                         }
1238                         tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl |
1239                                                     grc_local_ctrl, 100);
1240
1241                         grc_local_ctrl |= GRC_LCLCTRL_GPIO_OUTPUT0;
1242
1243                         tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl |
1244                                                     grc_local_ctrl, 100);
1245
1246                         if (!no_gpio2) {
1247                                 grc_local_ctrl &= ~GRC_LCLCTRL_GPIO_OUTPUT2;
1248                                 tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl |
1249                                             grc_local_ctrl, 100);
1250                         }
1251                 }
1252         } else {
1253                 if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5700 &&
1254                     GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5701) {
1255                         if (tp_peer != tp &&
1256                             (tp_peer->tg3_flags & TG3_FLAG_INIT_COMPLETE) != 0)
1257                                 return;
1258
1259                         tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl |
1260                                     (GRC_LCLCTRL_GPIO_OE1 |
1261                                      GRC_LCLCTRL_GPIO_OUTPUT1), 100);
1262
1263                         tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl |
1264                                     GRC_LCLCTRL_GPIO_OE1, 100);
1265
1266                         tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl |
1267                                     (GRC_LCLCTRL_GPIO_OE1 |
1268                                      GRC_LCLCTRL_GPIO_OUTPUT1), 100);
1269                 }
1270         }
1271 }
1272
1273 static int tg3_5700_link_polarity(struct tg3 *tp, u32 speed)
1274 {
1275         if (tp->led_ctrl == LED_CTRL_MODE_PHY_2)
1276                 return 1;
1277         else if ((tp->phy_id & PHY_ID_MASK) == PHY_ID_BCM5411) {
1278                 if (speed != SPEED_10)
1279                         return 1;
1280         } else if (speed == SPEED_10)
1281                 return 1;
1282
1283         return 0;
1284 }
1285
1286 static int tg3_setup_phy(struct tg3 *, int);
1287
1288 #define RESET_KIND_SHUTDOWN     0
1289 #define RESET_KIND_INIT         1
1290 #define RESET_KIND_SUSPEND      2
1291
1292 static void tg3_write_sig_post_reset(struct tg3 *, int);
1293 static int tg3_halt_cpu(struct tg3 *, u32);
1294 static int tg3_nvram_lock(struct tg3 *);
1295 static void tg3_nvram_unlock(struct tg3 *);
1296
1297 static void tg3_power_down_phy(struct tg3 *tp)
1298 {
1299         if (tp->tg3_flags2 & TG3_FLG2_PHY_SERDES) {
1300                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704) {
1301                         u32 sg_dig_ctrl = tr32(SG_DIG_CTRL);
1302                         u32 serdes_cfg = tr32(MAC_SERDES_CFG);
1303
1304                         sg_dig_ctrl |=
1305                                 SG_DIG_USING_HW_AUTONEG | SG_DIG_SOFT_RESET;
1306                         tw32(SG_DIG_CTRL, sg_dig_ctrl);
1307                         tw32(MAC_SERDES_CFG, serdes_cfg | (1 << 15));
1308                 }
1309                 return;
1310         }
1311
1312         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
1313                 u32 val;
1314
1315                 tg3_bmcr_reset(tp);
1316                 val = tr32(GRC_MISC_CFG);
1317                 tw32_f(GRC_MISC_CFG, val | GRC_MISC_CFG_EPHY_IDDQ);
1318                 udelay(40);
1319                 return;
1320         } else {
1321                 tg3_writephy(tp, MII_TG3_EXT_CTRL,
1322                              MII_TG3_EXT_CTRL_FORCE_LED_OFF);
1323                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x01b2);
1324         }
1325
1326         /* The PHY should not be powered down on some chips because
1327          * of bugs.
1328          */
1329         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
1330             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704 ||
1331             (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5780 &&
1332              (tp->tg3_flags2 & TG3_FLG2_MII_SERDES)))
1333                 return;
1334         tg3_writephy(tp, MII_BMCR, BMCR_PDOWN);
1335 }
1336
1337 static int tg3_set_power_state(struct tg3 *tp, pci_power_t state)
1338 {
1339         u32 misc_host_ctrl;
1340         u16 power_control, power_caps;
1341         int pm = tp->pm_cap;
1342
1343         /* Make sure register accesses (indirect or otherwise)
1344          * will function correctly.
1345          */
1346         pci_write_config_dword(tp->pdev,
1347                                TG3PCI_MISC_HOST_CTRL,
1348                                tp->misc_host_ctrl);
1349
1350         pci_read_config_word(tp->pdev,
1351                              pm + PCI_PM_CTRL,
1352                              &power_control);
1353         power_control |= PCI_PM_CTRL_PME_STATUS;
1354         power_control &= ~(PCI_PM_CTRL_STATE_MASK);
1355         switch (state) {
1356         case PCI_D0:
1357                 power_control |= 0;
1358                 pci_write_config_word(tp->pdev,
1359                                       pm + PCI_PM_CTRL,
1360                                       power_control);
1361                 udelay(100);    /* Delay after power state change */
1362
1363                 /* Switch out of Vaux if it is a NIC */
1364                 if (tp->tg3_flags2 & TG3_FLG2_IS_NIC)
1365                         tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl, 100);
1366
1367                 return 0;
1368
1369         case PCI_D1:
1370                 power_control |= 1;
1371                 break;
1372
1373         case PCI_D2:
1374                 power_control |= 2;
1375                 break;
1376
1377         case PCI_D3hot:
1378                 power_control |= 3;
1379                 break;
1380
1381         default:
1382                 printk(KERN_WARNING PFX "%s: Invalid power state (%d) "
1383                        "requested.\n",
1384                        tp->dev->name, state);
1385                 return -EINVAL;
1386         };
1387
1388         power_control |= PCI_PM_CTRL_PME_ENABLE;
1389
1390         misc_host_ctrl = tr32(TG3PCI_MISC_HOST_CTRL);
1391         tw32(TG3PCI_MISC_HOST_CTRL,
1392              misc_host_ctrl | MISC_HOST_CTRL_MASK_PCI_INT);
1393
1394         if (tp->link_config.phy_is_low_power == 0) {
1395                 tp->link_config.phy_is_low_power = 1;
1396                 tp->link_config.orig_speed = tp->link_config.speed;
1397                 tp->link_config.orig_duplex = tp->link_config.duplex;
1398                 tp->link_config.orig_autoneg = tp->link_config.autoneg;
1399         }
1400
1401         if (!(tp->tg3_flags2 & TG3_FLG2_ANY_SERDES)) {
1402                 tp->link_config.speed = SPEED_10;
1403                 tp->link_config.duplex = DUPLEX_HALF;
1404                 tp->link_config.autoneg = AUTONEG_ENABLE;
1405                 tg3_setup_phy(tp, 0);
1406         }
1407
1408         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
1409                 u32 val;
1410
1411                 val = tr32(GRC_VCPU_EXT_CTRL);
1412                 tw32(GRC_VCPU_EXT_CTRL, val | GRC_VCPU_EXT_CTRL_DISABLE_WOL);
1413         } else if (!(tp->tg3_flags & TG3_FLAG_ENABLE_ASF)) {
1414                 int i;
1415                 u32 val;
1416
1417                 for (i = 0; i < 200; i++) {
1418                         tg3_read_mem(tp, NIC_SRAM_FW_ASF_STATUS_MBOX, &val);
1419                         if (val == ~NIC_SRAM_FIRMWARE_MBOX_MAGIC1)
1420                                 break;
1421                         msleep(1);
1422                 }
1423         }
1424         if (tp->tg3_flags & TG3_FLAG_WOL_CAP)
1425                 tg3_write_mem(tp, NIC_SRAM_WOL_MBOX, WOL_SIGNATURE |
1426                                                      WOL_DRV_STATE_SHUTDOWN |
1427                                                      WOL_DRV_WOL |
1428                                                      WOL_SET_MAGIC_PKT);
1429
1430         pci_read_config_word(tp->pdev, pm + PCI_PM_PMC, &power_caps);
1431
1432         if (tp->tg3_flags & TG3_FLAG_WOL_ENABLE) {
1433                 u32 mac_mode;
1434
1435                 if (!(tp->tg3_flags2 & TG3_FLG2_PHY_SERDES)) {
1436                         tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x5a);
1437                         udelay(40);
1438
1439                         if (tp->tg3_flags2 & TG3_FLG2_MII_SERDES)
1440                                 mac_mode = MAC_MODE_PORT_MODE_GMII;
1441                         else
1442                                 mac_mode = MAC_MODE_PORT_MODE_MII;
1443
1444                         mac_mode |= tp->mac_mode & MAC_MODE_LINK_POLARITY;
1445                         if (GET_ASIC_REV(tp->pci_chip_rev_id) ==
1446                             ASIC_REV_5700) {
1447                                 u32 speed = (tp->tg3_flags &
1448                                              TG3_FLAG_WOL_SPEED_100MB) ?
1449                                              SPEED_100 : SPEED_10;
1450                                 if (tg3_5700_link_polarity(tp, speed))
1451                                         mac_mode |= MAC_MODE_LINK_POLARITY;
1452                                 else
1453                                         mac_mode &= ~MAC_MODE_LINK_POLARITY;
1454                         }
1455                 } else {
1456                         mac_mode = MAC_MODE_PORT_MODE_TBI;
1457                 }
1458
1459                 if (!(tp->tg3_flags2 & TG3_FLG2_5750_PLUS))
1460                         tw32(MAC_LED_CTRL, tp->led_ctrl);
1461
1462                 if (((power_caps & PCI_PM_CAP_PME_D3cold) &&
1463                      (tp->tg3_flags & TG3_FLAG_WOL_ENABLE)))
1464                         mac_mode |= MAC_MODE_MAGIC_PKT_ENABLE;
1465
1466                 tw32_f(MAC_MODE, mac_mode);
1467                 udelay(100);
1468
1469                 tw32_f(MAC_RX_MODE, RX_MODE_ENABLE);
1470                 udelay(10);
1471         }
1472
1473         if (!(tp->tg3_flags & TG3_FLAG_WOL_SPEED_100MB) &&
1474             (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
1475              GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701)) {
1476                 u32 base_val;
1477
1478                 base_val = tp->pci_clock_ctrl;
1479                 base_val |= (CLOCK_CTRL_RXCLK_DISABLE |
1480                              CLOCK_CTRL_TXCLK_DISABLE);
1481
1482                 tw32_wait_f(TG3PCI_CLOCK_CTRL, base_val | CLOCK_CTRL_ALTCLK |
1483                             CLOCK_CTRL_PWRDOWN_PLL133, 40);
1484         } else if ((tp->tg3_flags2 & TG3_FLG2_5780_CLASS) ||
1485                    (tp->tg3_flags & TG3_FLAG_CPMU_PRESENT) ||
1486                    (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906)) {
1487                 /* do nothing */
1488         } else if (!((tp->tg3_flags2 & TG3_FLG2_5750_PLUS) &&
1489                      (tp->tg3_flags & TG3_FLAG_ENABLE_ASF))) {
1490                 u32 newbits1, newbits2;
1491
1492                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
1493                     GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701) {
1494                         newbits1 = (CLOCK_CTRL_RXCLK_DISABLE |
1495                                     CLOCK_CTRL_TXCLK_DISABLE |
1496                                     CLOCK_CTRL_ALTCLK);
1497                         newbits2 = newbits1 | CLOCK_CTRL_44MHZ_CORE;
1498                 } else if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS) {
1499                         newbits1 = CLOCK_CTRL_625_CORE;
1500                         newbits2 = newbits1 | CLOCK_CTRL_ALTCLK;
1501                 } else {
1502                         newbits1 = CLOCK_CTRL_ALTCLK;
1503                         newbits2 = newbits1 | CLOCK_CTRL_44MHZ_CORE;
1504                 }
1505
1506                 tw32_wait_f(TG3PCI_CLOCK_CTRL, tp->pci_clock_ctrl | newbits1,
1507                             40);
1508
1509                 tw32_wait_f(TG3PCI_CLOCK_CTRL, tp->pci_clock_ctrl | newbits2,
1510                             40);
1511
1512                 if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS)) {
1513                         u32 newbits3;
1514
1515                         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
1516                             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701) {
1517                                 newbits3 = (CLOCK_CTRL_RXCLK_DISABLE |
1518                                             CLOCK_CTRL_TXCLK_DISABLE |
1519                                             CLOCK_CTRL_44MHZ_CORE);
1520                         } else {
1521                                 newbits3 = CLOCK_CTRL_44MHZ_CORE;
1522                         }
1523
1524                         tw32_wait_f(TG3PCI_CLOCK_CTRL,
1525                                     tp->pci_clock_ctrl | newbits3, 40);
1526                 }
1527         }
1528
1529         if (!(tp->tg3_flags & TG3_FLAG_WOL_ENABLE) &&
1530             !(tp->tg3_flags & TG3_FLAG_ENABLE_ASF) &&
1531             !(tp->tg3_flags3 & TG3_FLG3_ENABLE_APE))
1532                 tg3_power_down_phy(tp);
1533
1534         tg3_frob_aux_power(tp);
1535
1536         /* Workaround for unstable PLL clock */
1537         if ((GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5750_AX) ||
1538             (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5750_BX)) {
1539                 u32 val = tr32(0x7d00);
1540
1541                 val &= ~((1 << 16) | (1 << 4) | (1 << 2) | (1 << 1) | 1);
1542                 tw32(0x7d00, val);
1543                 if (!(tp->tg3_flags & TG3_FLAG_ENABLE_ASF)) {
1544                         int err;
1545
1546                         err = tg3_nvram_lock(tp);
1547                         tg3_halt_cpu(tp, RX_CPU_BASE);
1548                         if (!err)
1549                                 tg3_nvram_unlock(tp);
1550                 }
1551         }
1552
1553         tg3_write_sig_post_reset(tp, RESET_KIND_SHUTDOWN);
1554
1555         /* Finally, set the new power state. */
1556         pci_write_config_word(tp->pdev, pm + PCI_PM_CTRL, power_control);
1557         udelay(100);    /* Delay after power state change */
1558
1559         return 0;
1560 }
1561
1562 static void tg3_link_report(struct tg3 *tp)
1563 {
1564         if (!netif_carrier_ok(tp->dev)) {
1565                 if (netif_msg_link(tp))
1566                         printk(KERN_INFO PFX "%s: Link is down.\n",
1567                                tp->dev->name);
1568         } else if (netif_msg_link(tp)) {
1569                 printk(KERN_INFO PFX "%s: Link is up at %d Mbps, %s duplex.\n",
1570                        tp->dev->name,
1571                        (tp->link_config.active_speed == SPEED_1000 ?
1572                         1000 :
1573                         (tp->link_config.active_speed == SPEED_100 ?
1574                          100 : 10)),
1575                        (tp->link_config.active_duplex == DUPLEX_FULL ?
1576                         "full" : "half"));
1577
1578                 printk(KERN_INFO PFX "%s: Flow control is %s for TX and "
1579                        "%s for RX.\n",
1580                        tp->dev->name,
1581                        (tp->tg3_flags & TG3_FLAG_TX_PAUSE) ? "on" : "off",
1582                        (tp->tg3_flags & TG3_FLAG_RX_PAUSE) ? "on" : "off");
1583         }
1584 }
1585
1586 static void tg3_setup_flow_control(struct tg3 *tp, u32 local_adv, u32 remote_adv)
1587 {
1588         u32 new_tg3_flags = 0;
1589         u32 old_rx_mode = tp->rx_mode;
1590         u32 old_tx_mode = tp->tx_mode;
1591
1592         if (tp->tg3_flags & TG3_FLAG_PAUSE_AUTONEG) {
1593
1594                 /* Convert 1000BaseX flow control bits to 1000BaseT
1595                  * bits before resolving flow control.
1596                  */
1597                 if (tp->tg3_flags2 & TG3_FLG2_MII_SERDES) {
1598                         local_adv &= ~(ADVERTISE_PAUSE_CAP |
1599                                        ADVERTISE_PAUSE_ASYM);
1600                         remote_adv &= ~(LPA_PAUSE_CAP | LPA_PAUSE_ASYM);
1601
1602                         if (local_adv & ADVERTISE_1000XPAUSE)
1603                                 local_adv |= ADVERTISE_PAUSE_CAP;
1604                         if (local_adv & ADVERTISE_1000XPSE_ASYM)
1605                                 local_adv |= ADVERTISE_PAUSE_ASYM;
1606                         if (remote_adv & LPA_1000XPAUSE)
1607                                 remote_adv |= LPA_PAUSE_CAP;
1608                         if (remote_adv & LPA_1000XPAUSE_ASYM)
1609                                 remote_adv |= LPA_PAUSE_ASYM;
1610                 }
1611
1612                 if (local_adv & ADVERTISE_PAUSE_CAP) {
1613                         if (local_adv & ADVERTISE_PAUSE_ASYM) {
1614                                 if (remote_adv & LPA_PAUSE_CAP)
1615                                         new_tg3_flags |=
1616                                                 (TG3_FLAG_RX_PAUSE |
1617                                                 TG3_FLAG_TX_PAUSE);
1618                                 else if (remote_adv & LPA_PAUSE_ASYM)
1619                                         new_tg3_flags |=
1620                                                 (TG3_FLAG_RX_PAUSE);
1621                         } else {
1622                                 if (remote_adv & LPA_PAUSE_CAP)
1623                                         new_tg3_flags |=
1624                                                 (TG3_FLAG_RX_PAUSE |
1625                                                 TG3_FLAG_TX_PAUSE);
1626                         }
1627                 } else if (local_adv & ADVERTISE_PAUSE_ASYM) {
1628                         if ((remote_adv & LPA_PAUSE_CAP) &&
1629                         (remote_adv & LPA_PAUSE_ASYM))
1630                                 new_tg3_flags |= TG3_FLAG_TX_PAUSE;
1631                 }
1632
1633                 tp->tg3_flags &= ~(TG3_FLAG_RX_PAUSE | TG3_FLAG_TX_PAUSE);
1634                 tp->tg3_flags |= new_tg3_flags;
1635         } else {
1636                 new_tg3_flags = tp->tg3_flags;
1637         }
1638
1639         if (new_tg3_flags & TG3_FLAG_RX_PAUSE)
1640                 tp->rx_mode |= RX_MODE_FLOW_CTRL_ENABLE;
1641         else
1642                 tp->rx_mode &= ~RX_MODE_FLOW_CTRL_ENABLE;
1643
1644         if (old_rx_mode != tp->rx_mode) {
1645                 tw32_f(MAC_RX_MODE, tp->rx_mode);
1646         }
1647
1648         if (new_tg3_flags & TG3_FLAG_TX_PAUSE)
1649                 tp->tx_mode |= TX_MODE_FLOW_CTRL_ENABLE;
1650         else
1651                 tp->tx_mode &= ~TX_MODE_FLOW_CTRL_ENABLE;
1652
1653         if (old_tx_mode != tp->tx_mode) {
1654                 tw32_f(MAC_TX_MODE, tp->tx_mode);
1655         }
1656 }
1657
1658 static void tg3_aux_stat_to_speed_duplex(struct tg3 *tp, u32 val, u16 *speed, u8 *duplex)
1659 {
1660         switch (val & MII_TG3_AUX_STAT_SPDMASK) {
1661         case MII_TG3_AUX_STAT_10HALF:
1662                 *speed = SPEED_10;
1663                 *duplex = DUPLEX_HALF;
1664                 break;
1665
1666         case MII_TG3_AUX_STAT_10FULL:
1667                 *speed = SPEED_10;
1668                 *duplex = DUPLEX_FULL;
1669                 break;
1670
1671         case MII_TG3_AUX_STAT_100HALF:
1672                 *speed = SPEED_100;
1673                 *duplex = DUPLEX_HALF;
1674                 break;
1675
1676         case MII_TG3_AUX_STAT_100FULL:
1677                 *speed = SPEED_100;
1678                 *duplex = DUPLEX_FULL;
1679                 break;
1680
1681         case MII_TG3_AUX_STAT_1000HALF:
1682                 *speed = SPEED_1000;
1683                 *duplex = DUPLEX_HALF;
1684                 break;
1685
1686         case MII_TG3_AUX_STAT_1000FULL:
1687                 *speed = SPEED_1000;
1688                 *duplex = DUPLEX_FULL;
1689                 break;
1690
1691         default:
1692                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
1693                         *speed = (val & MII_TG3_AUX_STAT_100) ? SPEED_100 :
1694                                  SPEED_10;
1695                         *duplex = (val & MII_TG3_AUX_STAT_FULL) ? DUPLEX_FULL :
1696                                   DUPLEX_HALF;
1697                         break;
1698                 }
1699                 *speed = SPEED_INVALID;
1700                 *duplex = DUPLEX_INVALID;
1701                 break;
1702         };
1703 }
1704
1705 static void tg3_phy_copper_begin(struct tg3 *tp)
1706 {
1707         u32 new_adv;
1708         int i;
1709
1710         if (tp->link_config.phy_is_low_power) {
1711                 /* Entering low power mode.  Disable gigabit and
1712                  * 100baseT advertisements.
1713                  */
1714                 tg3_writephy(tp, MII_TG3_CTRL, 0);
1715
1716                 new_adv = (ADVERTISE_10HALF | ADVERTISE_10FULL |
1717                            ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP);
1718                 if (tp->tg3_flags & TG3_FLAG_WOL_SPEED_100MB)
1719                         new_adv |= (ADVERTISE_100HALF | ADVERTISE_100FULL);
1720
1721                 tg3_writephy(tp, MII_ADVERTISE, new_adv);
1722         } else if (tp->link_config.speed == SPEED_INVALID) {
1723                 if (tp->tg3_flags & TG3_FLAG_10_100_ONLY)
1724                         tp->link_config.advertising &=
1725                                 ~(ADVERTISED_1000baseT_Half |
1726                                   ADVERTISED_1000baseT_Full);
1727
1728                 new_adv = (ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP);
1729                 if (tp->link_config.advertising & ADVERTISED_10baseT_Half)
1730                         new_adv |= ADVERTISE_10HALF;
1731                 if (tp->link_config.advertising & ADVERTISED_10baseT_Full)
1732                         new_adv |= ADVERTISE_10FULL;
1733                 if (tp->link_config.advertising & ADVERTISED_100baseT_Half)
1734                         new_adv |= ADVERTISE_100HALF;
1735                 if (tp->link_config.advertising & ADVERTISED_100baseT_Full)
1736                         new_adv |= ADVERTISE_100FULL;
1737                 tg3_writephy(tp, MII_ADVERTISE, new_adv);
1738
1739                 if (tp->link_config.advertising &
1740                     (ADVERTISED_1000baseT_Half | ADVERTISED_1000baseT_Full)) {
1741                         new_adv = 0;
1742                         if (tp->link_config.advertising & ADVERTISED_1000baseT_Half)
1743                                 new_adv |= MII_TG3_CTRL_ADV_1000_HALF;
1744                         if (tp->link_config.advertising & ADVERTISED_1000baseT_Full)
1745                                 new_adv |= MII_TG3_CTRL_ADV_1000_FULL;
1746                         if (!(tp->tg3_flags & TG3_FLAG_10_100_ONLY) &&
1747                             (tp->pci_chip_rev_id == CHIPREV_ID_5701_A0 ||
1748                              tp->pci_chip_rev_id == CHIPREV_ID_5701_B0))
1749                                 new_adv |= (MII_TG3_CTRL_AS_MASTER |
1750                                             MII_TG3_CTRL_ENABLE_AS_MASTER);
1751                         tg3_writephy(tp, MII_TG3_CTRL, new_adv);
1752                 } else {
1753                         tg3_writephy(tp, MII_TG3_CTRL, 0);
1754                 }
1755         } else {
1756                 /* Asking for a specific link mode. */
1757                 if (tp->link_config.speed == SPEED_1000) {
1758                         new_adv = ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP;
1759                         tg3_writephy(tp, MII_ADVERTISE, new_adv);
1760
1761                         if (tp->link_config.duplex == DUPLEX_FULL)
1762                                 new_adv = MII_TG3_CTRL_ADV_1000_FULL;
1763                         else
1764                                 new_adv = MII_TG3_CTRL_ADV_1000_HALF;
1765                         if (tp->pci_chip_rev_id == CHIPREV_ID_5701_A0 ||
1766                             tp->pci_chip_rev_id == CHIPREV_ID_5701_B0)
1767                                 new_adv |= (MII_TG3_CTRL_AS_MASTER |
1768                                             MII_TG3_CTRL_ENABLE_AS_MASTER);
1769                         tg3_writephy(tp, MII_TG3_CTRL, new_adv);
1770                 } else {
1771                         tg3_writephy(tp, MII_TG3_CTRL, 0);
1772
1773                         new_adv = ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP;
1774                         if (tp->link_config.speed == SPEED_100) {
1775                                 if (tp->link_config.duplex == DUPLEX_FULL)
1776                                         new_adv |= ADVERTISE_100FULL;
1777                                 else
1778                                         new_adv |= ADVERTISE_100HALF;
1779                         } else {
1780                                 if (tp->link_config.duplex == DUPLEX_FULL)
1781                                         new_adv |= ADVERTISE_10FULL;
1782                                 else
1783                                         new_adv |= ADVERTISE_10HALF;
1784                         }
1785                         tg3_writephy(tp, MII_ADVERTISE, new_adv);
1786                 }
1787         }
1788
1789         if (tp->link_config.autoneg == AUTONEG_DISABLE &&
1790             tp->link_config.speed != SPEED_INVALID) {
1791                 u32 bmcr, orig_bmcr;
1792
1793                 tp->link_config.active_speed = tp->link_config.speed;
1794                 tp->link_config.active_duplex = tp->link_config.duplex;
1795
1796                 bmcr = 0;
1797                 switch (tp->link_config.speed) {
1798                 default:
1799                 case SPEED_10:
1800                         break;
1801
1802                 case SPEED_100:
1803                         bmcr |= BMCR_SPEED100;
1804                         break;
1805
1806                 case SPEED_1000:
1807                         bmcr |= TG3_BMCR_SPEED1000;
1808                         break;
1809                 };
1810
1811                 if (tp->link_config.duplex == DUPLEX_FULL)
1812                         bmcr |= BMCR_FULLDPLX;
1813
1814                 if (!tg3_readphy(tp, MII_BMCR, &orig_bmcr) &&
1815                     (bmcr != orig_bmcr)) {
1816                         tg3_writephy(tp, MII_BMCR, BMCR_LOOPBACK);
1817                         for (i = 0; i < 1500; i++) {
1818                                 u32 tmp;
1819
1820                                 udelay(10);
1821                                 if (tg3_readphy(tp, MII_BMSR, &tmp) ||
1822                                     tg3_readphy(tp, MII_BMSR, &tmp))
1823                                         continue;
1824                                 if (!(tmp & BMSR_LSTATUS)) {
1825                                         udelay(40);
1826                                         break;
1827                                 }
1828                         }
1829                         tg3_writephy(tp, MII_BMCR, bmcr);
1830                         udelay(40);
1831                 }
1832         } else {
1833                 tg3_writephy(tp, MII_BMCR,
1834                              BMCR_ANENABLE | BMCR_ANRESTART);
1835         }
1836 }
1837
1838 static int tg3_init_5401phy_dsp(struct tg3 *tp)
1839 {
1840         int err;
1841
1842         /* Turn off tap power management. */
1843         /* Set Extended packet length bit */
1844         err  = tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x4c20);
1845
1846         err |= tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x0012);
1847         err |= tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x1804);
1848
1849         err |= tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x0013);
1850         err |= tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x1204);
1851
1852         err |= tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x8006);
1853         err |= tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x0132);
1854
1855         err |= tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x8006);
1856         err |= tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x0232);
1857
1858         err |= tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x201f);
1859         err |= tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x0a20);
1860
1861         udelay(40);
1862
1863         return err;
1864 }
1865
1866 static int tg3_copper_is_advertising_all(struct tg3 *tp, u32 mask)
1867 {
1868         u32 adv_reg, all_mask = 0;
1869
1870         if (mask & ADVERTISED_10baseT_Half)
1871                 all_mask |= ADVERTISE_10HALF;
1872         if (mask & ADVERTISED_10baseT_Full)
1873                 all_mask |= ADVERTISE_10FULL;
1874         if (mask & ADVERTISED_100baseT_Half)
1875                 all_mask |= ADVERTISE_100HALF;
1876         if (mask & ADVERTISED_100baseT_Full)
1877                 all_mask |= ADVERTISE_100FULL;
1878
1879         if (tg3_readphy(tp, MII_ADVERTISE, &adv_reg))
1880                 return 0;
1881
1882         if ((adv_reg & all_mask) != all_mask)
1883                 return 0;
1884         if (!(tp->tg3_flags & TG3_FLAG_10_100_ONLY)) {
1885                 u32 tg3_ctrl;
1886
1887                 all_mask = 0;
1888                 if (mask & ADVERTISED_1000baseT_Half)
1889                         all_mask |= ADVERTISE_1000HALF;
1890                 if (mask & ADVERTISED_1000baseT_Full)
1891                         all_mask |= ADVERTISE_1000FULL;
1892
1893                 if (tg3_readphy(tp, MII_TG3_CTRL, &tg3_ctrl))
1894                         return 0;
1895
1896                 if ((tg3_ctrl & all_mask) != all_mask)
1897                         return 0;
1898         }
1899         return 1;
1900 }
1901
1902 static int tg3_setup_copper_phy(struct tg3 *tp, int force_reset)
1903 {
1904         int current_link_up;
1905         u32 bmsr, dummy;
1906         u16 current_speed;
1907         u8 current_duplex;
1908         int i, err;
1909
1910         tw32(MAC_EVENT, 0);
1911
1912         tw32_f(MAC_STATUS,
1913              (MAC_STATUS_SYNC_CHANGED |
1914               MAC_STATUS_CFG_CHANGED |
1915               MAC_STATUS_MI_COMPLETION |
1916               MAC_STATUS_LNKSTATE_CHANGED));
1917         udelay(40);
1918
1919         tp->mi_mode = MAC_MI_MODE_BASE;
1920         tw32_f(MAC_MI_MODE, tp->mi_mode);
1921         udelay(80);
1922
1923         tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x02);
1924
1925         /* Some third-party PHYs need to be reset on link going
1926          * down.
1927          */
1928         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703 ||
1929              GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704 ||
1930              GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705) &&
1931             netif_carrier_ok(tp->dev)) {
1932                 tg3_readphy(tp, MII_BMSR, &bmsr);
1933                 if (!tg3_readphy(tp, MII_BMSR, &bmsr) &&
1934                     !(bmsr & BMSR_LSTATUS))
1935                         force_reset = 1;
1936         }
1937         if (force_reset)
1938                 tg3_phy_reset(tp);
1939
1940         if ((tp->phy_id & PHY_ID_MASK) == PHY_ID_BCM5401) {
1941                 tg3_readphy(tp, MII_BMSR, &bmsr);
1942                 if (tg3_readphy(tp, MII_BMSR, &bmsr) ||
1943                     !(tp->tg3_flags & TG3_FLAG_INIT_COMPLETE))
1944                         bmsr = 0;
1945
1946                 if (!(bmsr & BMSR_LSTATUS)) {
1947                         err = tg3_init_5401phy_dsp(tp);
1948                         if (err)
1949                                 return err;
1950
1951                         tg3_readphy(tp, MII_BMSR, &bmsr);
1952                         for (i = 0; i < 1000; i++) {
1953                                 udelay(10);
1954                                 if (!tg3_readphy(tp, MII_BMSR, &bmsr) &&
1955                                     (bmsr & BMSR_LSTATUS)) {
1956                                         udelay(40);
1957                                         break;
1958                                 }
1959                         }
1960
1961                         if ((tp->phy_id & PHY_ID_REV_MASK) == PHY_REV_BCM5401_B0 &&
1962                             !(bmsr & BMSR_LSTATUS) &&
1963                             tp->link_config.active_speed == SPEED_1000) {
1964                                 err = tg3_phy_reset(tp);
1965                                 if (!err)
1966                                         err = tg3_init_5401phy_dsp(tp);
1967                                 if (err)
1968                                         return err;
1969                         }
1970                 }
1971         } else if (tp->pci_chip_rev_id == CHIPREV_ID_5701_A0 ||
1972                    tp->pci_chip_rev_id == CHIPREV_ID_5701_B0) {
1973                 /* 5701 {A0,B0} CRC bug workaround */
1974                 tg3_writephy(tp, 0x15, 0x0a75);
1975                 tg3_writephy(tp, 0x1c, 0x8c68);
1976                 tg3_writephy(tp, 0x1c, 0x8d68);
1977                 tg3_writephy(tp, 0x1c, 0x8c68);
1978         }
1979
1980         /* Clear pending interrupts... */
1981         tg3_readphy(tp, MII_TG3_ISTAT, &dummy);
1982         tg3_readphy(tp, MII_TG3_ISTAT, &dummy);
1983
1984         if (tp->tg3_flags & TG3_FLAG_USE_MI_INTERRUPT)
1985                 tg3_writephy(tp, MII_TG3_IMASK, ~MII_TG3_INT_LINKCHG);
1986         else if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5906)
1987                 tg3_writephy(tp, MII_TG3_IMASK, ~0);
1988
1989         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
1990             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701) {
1991                 if (tp->led_ctrl == LED_CTRL_MODE_PHY_1)
1992                         tg3_writephy(tp, MII_TG3_EXT_CTRL,
1993                                      MII_TG3_EXT_CTRL_LNK3_LED_MODE);
1994                 else
1995                         tg3_writephy(tp, MII_TG3_EXT_CTRL, 0);
1996         }
1997
1998         current_link_up = 0;
1999         current_speed = SPEED_INVALID;
2000         current_duplex = DUPLEX_INVALID;
2001
2002         if (tp->tg3_flags2 & TG3_FLG2_CAPACITIVE_COUPLING) {
2003                 u32 val;
2004
2005                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x4007);
2006                 tg3_readphy(tp, MII_TG3_AUX_CTRL, &val);
2007                 if (!(val & (1 << 10))) {
2008                         val |= (1 << 10);
2009                         tg3_writephy(tp, MII_TG3_AUX_CTRL, val);
2010                         goto relink;
2011                 }
2012         }
2013
2014         bmsr = 0;
2015         for (i = 0; i < 100; i++) {
2016                 tg3_readphy(tp, MII_BMSR, &bmsr);
2017                 if (!tg3_readphy(tp, MII_BMSR, &bmsr) &&
2018                     (bmsr & BMSR_LSTATUS))
2019                         break;
2020                 udelay(40);
2021         }
2022
2023         if (bmsr & BMSR_LSTATUS) {
2024                 u32 aux_stat, bmcr;
2025
2026                 tg3_readphy(tp, MII_TG3_AUX_STAT, &aux_stat);
2027                 for (i = 0; i < 2000; i++) {
2028                         udelay(10);
2029                         if (!tg3_readphy(tp, MII_TG3_AUX_STAT, &aux_stat) &&
2030                             aux_stat)
2031                                 break;
2032                 }
2033
2034                 tg3_aux_stat_to_speed_duplex(tp, aux_stat,
2035                                              &current_speed,
2036                                              &current_duplex);
2037
2038                 bmcr = 0;
2039                 for (i = 0; i < 200; i++) {
2040                         tg3_readphy(tp, MII_BMCR, &bmcr);
2041                         if (tg3_readphy(tp, MII_BMCR, &bmcr))
2042                                 continue;
2043                         if (bmcr && bmcr != 0x7fff)
2044                                 break;
2045                         udelay(10);
2046                 }
2047
2048                 if (tp->link_config.autoneg == AUTONEG_ENABLE) {
2049                         if (bmcr & BMCR_ANENABLE) {
2050                                 current_link_up = 1;
2051
2052                                 /* Force autoneg restart if we are exiting
2053                                  * low power mode.
2054                                  */
2055                                 if (!tg3_copper_is_advertising_all(tp,
2056                                                 tp->link_config.advertising))
2057                                         current_link_up = 0;
2058                         } else {
2059                                 current_link_up = 0;
2060                         }
2061                 } else {
2062                         if (!(bmcr & BMCR_ANENABLE) &&
2063                             tp->link_config.speed == current_speed &&
2064                             tp->link_config.duplex == current_duplex) {
2065                                 current_link_up = 1;
2066                         } else {
2067                                 current_link_up = 0;
2068                         }
2069                 }
2070
2071                 tp->link_config.active_speed = current_speed;
2072                 tp->link_config.active_duplex = current_duplex;
2073         }
2074
2075         if (current_link_up == 1 &&
2076             (tp->link_config.active_duplex == DUPLEX_FULL) &&
2077             (tp->link_config.autoneg == AUTONEG_ENABLE)) {
2078                 u32 local_adv, remote_adv;
2079
2080                 if (tg3_readphy(tp, MII_ADVERTISE, &local_adv))
2081                         local_adv = 0;
2082                 local_adv &= (ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM);
2083
2084                 if (tg3_readphy(tp, MII_LPA, &remote_adv))
2085                         remote_adv = 0;
2086
2087                 remote_adv &= (LPA_PAUSE_CAP | LPA_PAUSE_ASYM);
2088
2089                 /* If we are not advertising full pause capability,
2090                  * something is wrong.  Bring the link down and reconfigure.
2091                  */
2092                 if (local_adv != ADVERTISE_PAUSE_CAP) {
2093                         current_link_up = 0;
2094                 } else {
2095                         tg3_setup_flow_control(tp, local_adv, remote_adv);
2096                 }
2097         }
2098 relink:
2099         if (current_link_up == 0 || tp->link_config.phy_is_low_power) {
2100                 u32 tmp;
2101
2102                 tg3_phy_copper_begin(tp);
2103
2104                 tg3_readphy(tp, MII_BMSR, &tmp);
2105                 if (!tg3_readphy(tp, MII_BMSR, &tmp) &&
2106                     (tmp & BMSR_LSTATUS))
2107                         current_link_up = 1;
2108         }
2109
2110         tp->mac_mode &= ~MAC_MODE_PORT_MODE_MASK;
2111         if (current_link_up == 1) {
2112                 if (tp->link_config.active_speed == SPEED_100 ||
2113                     tp->link_config.active_speed == SPEED_10)
2114                         tp->mac_mode |= MAC_MODE_PORT_MODE_MII;
2115                 else
2116                         tp->mac_mode |= MAC_MODE_PORT_MODE_GMII;
2117         } else
2118                 tp->mac_mode |= MAC_MODE_PORT_MODE_GMII;
2119
2120         tp->mac_mode &= ~MAC_MODE_HALF_DUPLEX;
2121         if (tp->link_config.active_duplex == DUPLEX_HALF)
2122                 tp->mac_mode |= MAC_MODE_HALF_DUPLEX;
2123
2124         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700) {
2125                 if (current_link_up == 1 &&
2126                     tg3_5700_link_polarity(tp, tp->link_config.active_speed))
2127                         tp->mac_mode |= MAC_MODE_LINK_POLARITY;
2128                 else
2129                         tp->mac_mode &= ~MAC_MODE_LINK_POLARITY;
2130         }
2131
2132         /* ??? Without this setting Netgear GA302T PHY does not
2133          * ??? send/receive packets...
2134          */
2135         if ((tp->phy_id & PHY_ID_MASK) == PHY_ID_BCM5411 &&
2136             tp->pci_chip_rev_id == CHIPREV_ID_5700_ALTIMA) {
2137                 tp->mi_mode |= MAC_MI_MODE_AUTO_POLL;
2138                 tw32_f(MAC_MI_MODE, tp->mi_mode);
2139                 udelay(80);
2140         }
2141
2142         tw32_f(MAC_MODE, tp->mac_mode);
2143         udelay(40);
2144
2145         if (tp->tg3_flags & TG3_FLAG_USE_LINKCHG_REG) {
2146                 /* Polled via timer. */
2147                 tw32_f(MAC_EVENT, 0);
2148         } else {
2149                 tw32_f(MAC_EVENT, MAC_EVENT_LNKSTATE_CHANGED);
2150         }
2151         udelay(40);
2152
2153         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 &&
2154             current_link_up == 1 &&
2155             tp->link_config.active_speed == SPEED_1000 &&
2156             ((tp->tg3_flags & TG3_FLAG_PCIX_MODE) ||
2157              (tp->tg3_flags & TG3_FLAG_PCI_HIGH_SPEED))) {
2158                 udelay(120);
2159                 tw32_f(MAC_STATUS,
2160                      (MAC_STATUS_SYNC_CHANGED |
2161                       MAC_STATUS_CFG_CHANGED));
2162                 udelay(40);
2163                 tg3_write_mem(tp,
2164                               NIC_SRAM_FIRMWARE_MBOX,
2165                               NIC_SRAM_FIRMWARE_MBOX_MAGIC2);
2166         }
2167
2168         if (current_link_up != netif_carrier_ok(tp->dev)) {
2169                 if (current_link_up)
2170                         netif_carrier_on(tp->dev);
2171                 else
2172                         netif_carrier_off(tp->dev);
2173                 tg3_link_report(tp);
2174         }
2175
2176         return 0;
2177 }
2178
2179 struct tg3_fiber_aneginfo {
2180         int state;
2181 #define ANEG_STATE_UNKNOWN              0
2182 #define ANEG_STATE_AN_ENABLE            1
2183 #define ANEG_STATE_RESTART_INIT         2
2184 #define ANEG_STATE_RESTART              3
2185 #define ANEG_STATE_DISABLE_LINK_OK      4
2186 #define ANEG_STATE_ABILITY_DETECT_INIT  5
2187 #define ANEG_STATE_ABILITY_DETECT       6
2188 #define ANEG_STATE_ACK_DETECT_INIT      7
2189 #define ANEG_STATE_ACK_DETECT           8
2190 #define ANEG_STATE_COMPLETE_ACK_INIT    9
2191 #define ANEG_STATE_COMPLETE_ACK         10
2192 #define ANEG_STATE_IDLE_DETECT_INIT     11
2193 #define ANEG_STATE_IDLE_DETECT          12
2194 #define ANEG_STATE_LINK_OK              13
2195 #define ANEG_STATE_NEXT_PAGE_WAIT_INIT  14
2196 #define ANEG_STATE_NEXT_PAGE_WAIT       15
2197
2198         u32 flags;
2199 #define MR_AN_ENABLE            0x00000001
2200 #define MR_RESTART_AN           0x00000002
2201 #define MR_AN_COMPLETE          0x00000004
2202 #define MR_PAGE_RX              0x00000008
2203 #define MR_NP_LOADED            0x00000010
2204 #define MR_TOGGLE_TX            0x00000020
2205 #define MR_LP_ADV_FULL_DUPLEX   0x00000040
2206 #define MR_LP_ADV_HALF_DUPLEX   0x00000080
2207 #define MR_LP_ADV_SYM_PAUSE     0x00000100
2208 #define MR_LP_ADV_ASYM_PAUSE    0x00000200
2209 #define MR_LP_ADV_REMOTE_FAULT1 0x00000400
2210 #define MR_LP_ADV_REMOTE_FAULT2 0x00000800
2211 #define MR_LP_ADV_NEXT_PAGE     0x00001000
2212 #define MR_TOGGLE_RX            0x00002000
2213 #define MR_NP_RX                0x00004000
2214
2215 #define MR_LINK_OK              0x80000000
2216
2217         unsigned long link_time, cur_time;
2218
2219         u32 ability_match_cfg;
2220         int ability_match_count;
2221
2222         char ability_match, idle_match, ack_match;
2223
2224         u32 txconfig, rxconfig;
2225 #define ANEG_CFG_NP             0x00000080
2226 #define ANEG_CFG_ACK            0x00000040
2227 #define ANEG_CFG_RF2            0x00000020
2228 #define ANEG_CFG_RF1            0x00000010
2229 #define ANEG_CFG_PS2            0x00000001
2230 #define ANEG_CFG_PS1            0x00008000
2231 #define ANEG_CFG_HD             0x00004000
2232 #define ANEG_CFG_FD             0x00002000
2233 #define ANEG_CFG_INVAL          0x00001f06
2234
2235 };
2236 #define ANEG_OK         0
2237 #define ANEG_DONE       1
2238 #define ANEG_TIMER_ENAB 2
2239 #define ANEG_FAILED     -1
2240
2241 #define ANEG_STATE_SETTLE_TIME  10000
2242
2243 static int tg3_fiber_aneg_smachine(struct tg3 *tp,
2244                                    struct tg3_fiber_aneginfo *ap)
2245 {
2246         unsigned long delta;
2247         u32 rx_cfg_reg;
2248         int ret;
2249
2250         if (ap->state == ANEG_STATE_UNKNOWN) {
2251                 ap->rxconfig = 0;
2252                 ap->link_time = 0;
2253                 ap->cur_time = 0;
2254                 ap->ability_match_cfg = 0;
2255                 ap->ability_match_count = 0;
2256                 ap->ability_match = 0;
2257                 ap->idle_match = 0;
2258                 ap->ack_match = 0;
2259         }
2260         ap->cur_time++;
2261
2262         if (tr32(MAC_STATUS) & MAC_STATUS_RCVD_CFG) {
2263                 rx_cfg_reg = tr32(MAC_RX_AUTO_NEG);
2264
2265                 if (rx_cfg_reg != ap->ability_match_cfg) {
2266                         ap->ability_match_cfg = rx_cfg_reg;
2267                         ap->ability_match = 0;
2268                         ap->ability_match_count = 0;
2269                 } else {
2270                         if (++ap->ability_match_count > 1) {
2271                                 ap->ability_match = 1;
2272                                 ap->ability_match_cfg = rx_cfg_reg;
2273                         }
2274                 }
2275                 if (rx_cfg_reg & ANEG_CFG_ACK)
2276                         ap->ack_match = 1;
2277                 else
2278                         ap->ack_match = 0;
2279
2280                 ap->idle_match = 0;
2281         } else {
2282                 ap->idle_match = 1;
2283                 ap->ability_match_cfg = 0;
2284                 ap->ability_match_count = 0;
2285                 ap->ability_match = 0;
2286                 ap->ack_match = 0;
2287
2288                 rx_cfg_reg = 0;
2289         }
2290
2291         ap->rxconfig = rx_cfg_reg;
2292         ret = ANEG_OK;
2293
2294         switch(ap->state) {
2295         case ANEG_STATE_UNKNOWN:
2296                 if (ap->flags & (MR_AN_ENABLE | MR_RESTART_AN))
2297                         ap->state = ANEG_STATE_AN_ENABLE;
2298
2299                 /* fallthru */
2300         case ANEG_STATE_AN_ENABLE:
2301                 ap->flags &= ~(MR_AN_COMPLETE | MR_PAGE_RX);
2302                 if (ap->flags & MR_AN_ENABLE) {
2303                         ap->link_time = 0;
2304                         ap->cur_time = 0;
2305                         ap->ability_match_cfg = 0;
2306                         ap->ability_match_count = 0;
2307                         ap->ability_match = 0;
2308                         ap->idle_match = 0;
2309                         ap->ack_match = 0;
2310
2311                         ap->state = ANEG_STATE_RESTART_INIT;
2312                 } else {
2313                         ap->state = ANEG_STATE_DISABLE_LINK_OK;
2314                 }
2315                 break;
2316
2317         case ANEG_STATE_RESTART_INIT:
2318                 ap->link_time = ap->cur_time;
2319                 ap->flags &= ~(MR_NP_LOADED);
2320                 ap->txconfig = 0;
2321                 tw32(MAC_TX_AUTO_NEG, 0);
2322                 tp->mac_mode |= MAC_MODE_SEND_CONFIGS;
2323                 tw32_f(MAC_MODE, tp->mac_mode);
2324                 udelay(40);
2325
2326                 ret = ANEG_TIMER_ENAB;
2327                 ap->state = ANEG_STATE_RESTART;
2328
2329                 /* fallthru */
2330         case ANEG_STATE_RESTART:
2331                 delta = ap->cur_time - ap->link_time;
2332                 if (delta > ANEG_STATE_SETTLE_TIME) {
2333                         ap->state = ANEG_STATE_ABILITY_DETECT_INIT;
2334                 } else {
2335                         ret = ANEG_TIMER_ENAB;
2336                 }
2337                 break;
2338
2339         case ANEG_STATE_DISABLE_LINK_OK:
2340                 ret = ANEG_DONE;
2341                 break;
2342
2343         case ANEG_STATE_ABILITY_DETECT_INIT:
2344                 ap->flags &= ~(MR_TOGGLE_TX);
2345                 ap->txconfig = (ANEG_CFG_FD | ANEG_CFG_PS1);
2346                 tw32(MAC_TX_AUTO_NEG, ap->txconfig);
2347                 tp->mac_mode |= MAC_MODE_SEND_CONFIGS;
2348                 tw32_f(MAC_MODE, tp->mac_mode);
2349                 udelay(40);
2350
2351                 ap->state = ANEG_STATE_ABILITY_DETECT;
2352                 break;
2353
2354         case ANEG_STATE_ABILITY_DETECT:
2355                 if (ap->ability_match != 0 && ap->rxconfig != 0) {
2356                         ap->state = ANEG_STATE_ACK_DETECT_INIT;
2357                 }
2358                 break;
2359
2360         case ANEG_STATE_ACK_DETECT_INIT:
2361                 ap->txconfig |= ANEG_CFG_ACK;
2362                 tw32(MAC_TX_AUTO_NEG, ap->txconfig);
2363                 tp->mac_mode |= MAC_MODE_SEND_CONFIGS;
2364                 tw32_f(MAC_MODE, tp->mac_mode);
2365                 udelay(40);
2366
2367                 ap->state = ANEG_STATE_ACK_DETECT;
2368
2369                 /* fallthru */
2370         case ANEG_STATE_ACK_DETECT:
2371                 if (ap->ack_match != 0) {
2372                         if ((ap->rxconfig & ~ANEG_CFG_ACK) ==
2373                             (ap->ability_match_cfg & ~ANEG_CFG_ACK)) {
2374                                 ap->state = ANEG_STATE_COMPLETE_ACK_INIT;
2375                         } else {
2376                                 ap->state = ANEG_STATE_AN_ENABLE;
2377                         }
2378                 } else if (ap->ability_match != 0 &&
2379                            ap->rxconfig == 0) {
2380                         ap->state = ANEG_STATE_AN_ENABLE;
2381                 }
2382                 break;
2383
2384         case ANEG_STATE_COMPLETE_ACK_INIT:
2385                 if (ap->rxconfig & ANEG_CFG_INVAL) {
2386                         ret = ANEG_FAILED;
2387                         break;
2388                 }
2389                 ap->flags &= ~(MR_LP_ADV_FULL_DUPLEX |
2390                                MR_LP_ADV_HALF_DUPLEX |
2391                                MR_LP_ADV_SYM_PAUSE |
2392                                MR_LP_ADV_ASYM_PAUSE |
2393                                MR_LP_ADV_REMOTE_FAULT1 |
2394                                MR_LP_ADV_REMOTE_FAULT2 |
2395                                MR_LP_ADV_NEXT_PAGE |
2396                                MR_TOGGLE_RX |
2397                                MR_NP_RX);
2398                 if (ap->rxconfig & ANEG_CFG_FD)
2399                         ap->flags |= MR_LP_ADV_FULL_DUPLEX;
2400                 if (ap->rxconfig & ANEG_CFG_HD)
2401                         ap->flags |= MR_LP_ADV_HALF_DUPLEX;
2402                 if (ap->rxconfig & ANEG_CFG_PS1)
2403                         ap->flags |= MR_LP_ADV_SYM_PAUSE;
2404                 if (ap->rxconfig & ANEG_CFG_PS2)
2405                         ap->flags |= MR_LP_ADV_ASYM_PAUSE;
2406                 if (ap->rxconfig & ANEG_CFG_RF1)
2407                         ap->flags |= MR_LP_ADV_REMOTE_FAULT1;
2408                 if (ap->rxconfig & ANEG_CFG_RF2)
2409                         ap->flags |= MR_LP_ADV_REMOTE_FAULT2;
2410                 if (ap->rxconfig & ANEG_CFG_NP)
2411                         ap->flags |= MR_LP_ADV_NEXT_PAGE;
2412
2413                 ap->link_time = ap->cur_time;
2414
2415                 ap->flags ^= (MR_TOGGLE_TX);
2416                 if (ap->rxconfig & 0x0008)
2417                         ap->flags |= MR_TOGGLE_RX;
2418                 if (ap->rxconfig & ANEG_CFG_NP)
2419                         ap->flags |= MR_NP_RX;
2420                 ap->flags |= MR_PAGE_RX;
2421
2422                 ap->state = ANEG_STATE_COMPLETE_ACK;
2423                 ret = ANEG_TIMER_ENAB;
2424                 break;
2425
2426         case ANEG_STATE_COMPLETE_ACK:
2427                 if (ap->ability_match != 0 &&
2428                     ap->rxconfig == 0) {
2429                         ap->state = ANEG_STATE_AN_ENABLE;
2430                         break;
2431                 }
2432                 delta = ap->cur_time - ap->link_time;
2433                 if (delta > ANEG_STATE_SETTLE_TIME) {
2434                         if (!(ap->flags & (MR_LP_ADV_NEXT_PAGE))) {
2435                                 ap->state = ANEG_STATE_IDLE_DETECT_INIT;
2436                         } else {
2437                                 if ((ap->txconfig & ANEG_CFG_NP) == 0 &&
2438                                     !(ap->flags & MR_NP_RX)) {
2439                                         ap->state = ANEG_STATE_IDLE_DETECT_INIT;
2440                                 } else {
2441                                         ret = ANEG_FAILED;
2442                                 }
2443                         }
2444                 }
2445                 break;
2446
2447         case ANEG_STATE_IDLE_DETECT_INIT:
2448                 ap->link_time = ap->cur_time;
2449                 tp->mac_mode &= ~MAC_MODE_SEND_CONFIGS;
2450                 tw32_f(MAC_MODE, tp->mac_mode);
2451                 udelay(40);
2452
2453                 ap->state = ANEG_STATE_IDLE_DETECT;
2454                 ret = ANEG_TIMER_ENAB;
2455                 break;
2456
2457         case ANEG_STATE_IDLE_DETECT:
2458                 if (ap->ability_match != 0 &&
2459                     ap->rxconfig == 0) {
2460                         ap->state = ANEG_STATE_AN_ENABLE;
2461                         break;
2462                 }
2463                 delta = ap->cur_time - ap->link_time;
2464                 if (delta > ANEG_STATE_SETTLE_TIME) {
2465                         /* XXX another gem from the Broadcom driver :( */
2466                         ap->state = ANEG_STATE_LINK_OK;
2467                 }
2468                 break;
2469
2470         case ANEG_STATE_LINK_OK:
2471                 ap->flags |= (MR_AN_COMPLETE | MR_LINK_OK);
2472                 ret = ANEG_DONE;
2473                 break;
2474
2475         case ANEG_STATE_NEXT_PAGE_WAIT_INIT:
2476                 /* ??? unimplemented */
2477                 break;
2478
2479         case ANEG_STATE_NEXT_PAGE_WAIT:
2480                 /* ??? unimplemented */
2481                 break;
2482
2483         default:
2484                 ret = ANEG_FAILED;
2485                 break;
2486         };
2487
2488         return ret;
2489 }
2490
2491 static int fiber_autoneg(struct tg3 *tp, u32 *flags)
2492 {
2493         int res = 0;
2494         struct tg3_fiber_aneginfo aninfo;
2495         int status = ANEG_FAILED;
2496         unsigned int tick;
2497         u32 tmp;
2498
2499         tw32_f(MAC_TX_AUTO_NEG, 0);
2500
2501         tmp = tp->mac_mode & ~MAC_MODE_PORT_MODE_MASK;
2502         tw32_f(MAC_MODE, tmp | MAC_MODE_PORT_MODE_GMII);
2503         udelay(40);
2504
2505         tw32_f(MAC_MODE, tp->mac_mode | MAC_MODE_SEND_CONFIGS);
2506         udelay(40);
2507
2508         memset(&aninfo, 0, sizeof(aninfo));
2509         aninfo.flags |= MR_AN_ENABLE;
2510         aninfo.state = ANEG_STATE_UNKNOWN;
2511         aninfo.cur_time = 0;
2512         tick = 0;
2513         while (++tick < 195000) {
2514                 status = tg3_fiber_aneg_smachine(tp, &aninfo);
2515                 if (status == ANEG_DONE || status == ANEG_FAILED)
2516                         break;
2517
2518                 udelay(1);
2519         }
2520
2521         tp->mac_mode &= ~MAC_MODE_SEND_CONFIGS;
2522         tw32_f(MAC_MODE, tp->mac_mode);
2523         udelay(40);
2524
2525         *flags = aninfo.flags;
2526
2527         if (status == ANEG_DONE &&
2528             (aninfo.flags & (MR_AN_COMPLETE | MR_LINK_OK |
2529                              MR_LP_ADV_FULL_DUPLEX)))
2530                 res = 1;
2531
2532         return res;
2533 }
2534
2535 static void tg3_init_bcm8002(struct tg3 *tp)
2536 {
2537         u32 mac_status = tr32(MAC_STATUS);
2538         int i;
2539
2540         /* Reset when initting first time or we have a link. */
2541         if ((tp->tg3_flags & TG3_FLAG_INIT_COMPLETE) &&
2542             !(mac_status & MAC_STATUS_PCS_SYNCED))
2543                 return;
2544
2545         /* Set PLL lock range. */
2546         tg3_writephy(tp, 0x16, 0x8007);
2547
2548         /* SW reset */
2549         tg3_writephy(tp, MII_BMCR, BMCR_RESET);
2550
2551         /* Wait for reset to complete. */
2552         /* XXX schedule_timeout() ... */
2553         for (i = 0; i < 500; i++)
2554                 udelay(10);
2555
2556         /* Config mode; select PMA/Ch 1 regs. */
2557         tg3_writephy(tp, 0x10, 0x8411);
2558
2559         /* Enable auto-lock and comdet, select txclk for tx. */
2560         tg3_writephy(tp, 0x11, 0x0a10);
2561
2562         tg3_writephy(tp, 0x18, 0x00a0);
2563         tg3_writephy(tp, 0x16, 0x41ff);
2564
2565         /* Assert and deassert POR. */
2566         tg3_writephy(tp, 0x13, 0x0400);
2567         udelay(40);
2568         tg3_writephy(tp, 0x13, 0x0000);
2569
2570         tg3_writephy(tp, 0x11, 0x0a50);
2571         udelay(40);
2572         tg3_writephy(tp, 0x11, 0x0a10);
2573
2574         /* Wait for signal to stabilize */
2575         /* XXX schedule_timeout() ... */
2576         for (i = 0; i < 15000; i++)
2577                 udelay(10);
2578
2579         /* Deselect the channel register so we can read the PHYID
2580          * later.
2581          */
2582         tg3_writephy(tp, 0x10, 0x8011);
2583 }
2584
2585 static int tg3_setup_fiber_hw_autoneg(struct tg3 *tp, u32 mac_status)
2586 {
2587         u32 sg_dig_ctrl, sg_dig_status;
2588         u32 serdes_cfg, expected_sg_dig_ctrl;
2589         int workaround, port_a;
2590         int current_link_up;
2591
2592         serdes_cfg = 0;
2593         expected_sg_dig_ctrl = 0;
2594         workaround = 0;
2595         port_a = 1;
2596         current_link_up = 0;
2597
2598         if (tp->pci_chip_rev_id != CHIPREV_ID_5704_A0 &&
2599             tp->pci_chip_rev_id != CHIPREV_ID_5704_A1) {
2600                 workaround = 1;
2601                 if (tr32(TG3PCI_DUAL_MAC_CTRL) & DUAL_MAC_CTRL_ID)
2602                         port_a = 0;
2603
2604                 /* preserve bits 0-11,13,14 for signal pre-emphasis */
2605                 /* preserve bits 20-23 for voltage regulator */
2606                 serdes_cfg = tr32(MAC_SERDES_CFG) & 0x00f06fff;
2607         }
2608
2609         sg_dig_ctrl = tr32(SG_DIG_CTRL);
2610
2611         if (tp->link_config.autoneg != AUTONEG_ENABLE) {
2612                 if (sg_dig_ctrl & (1 << 31)) {
2613                         if (workaround) {
2614                                 u32 val = serdes_cfg;
2615
2616                                 if (port_a)
2617                                         val |= 0xc010000;
2618                                 else
2619                                         val |= 0x4010000;
2620                                 tw32_f(MAC_SERDES_CFG, val);
2621                         }
2622                         tw32_f(SG_DIG_CTRL, 0x01388400);
2623                 }
2624                 if (mac_status & MAC_STATUS_PCS_SYNCED) {
2625                         tg3_setup_flow_control(tp, 0, 0);
2626                         current_link_up = 1;
2627                 }
2628                 goto out;
2629         }
2630
2631         /* Want auto-negotiation.  */
2632         expected_sg_dig_ctrl = 0x81388400;
2633
2634         /* Pause capability */
2635         expected_sg_dig_ctrl |= (1 << 11);
2636
2637         /* Asymettric pause */
2638         expected_sg_dig_ctrl |= (1 << 12);
2639
2640         if (sg_dig_ctrl != expected_sg_dig_ctrl) {
2641                 if ((tp->tg3_flags2 & TG3_FLG2_PARALLEL_DETECT) &&
2642                     tp->serdes_counter &&
2643                     ((mac_status & (MAC_STATUS_PCS_SYNCED |
2644                                     MAC_STATUS_RCVD_CFG)) ==
2645                      MAC_STATUS_PCS_SYNCED)) {
2646                         tp->serdes_counter--;
2647                         current_link_up = 1;
2648                         goto out;
2649                 }
2650 restart_autoneg:
2651                 if (workaround)
2652                         tw32_f(MAC_SERDES_CFG, serdes_cfg | 0xc011000);
2653                 tw32_f(SG_DIG_CTRL, expected_sg_dig_ctrl | (1 << 30));
2654                 udelay(5);
2655                 tw32_f(SG_DIG_CTRL, expected_sg_dig_ctrl);
2656
2657                 tp->serdes_counter = SERDES_AN_TIMEOUT_5704S;
2658                 tp->tg3_flags2 &= ~TG3_FLG2_PARALLEL_DETECT;
2659         } else if (mac_status & (MAC_STATUS_PCS_SYNCED |
2660                                  MAC_STATUS_SIGNAL_DET)) {
2661                 sg_dig_status = tr32(SG_DIG_STATUS);
2662                 mac_status = tr32(MAC_STATUS);
2663
2664                 if ((sg_dig_status & (1 << 1)) &&
2665                     (mac_status & MAC_STATUS_PCS_SYNCED)) {
2666                         u32 local_adv, remote_adv;
2667
2668                         local_adv = ADVERTISE_PAUSE_CAP;
2669                         remote_adv = 0;
2670                         if (sg_dig_status & (1 << 19))
2671                                 remote_adv |= LPA_PAUSE_CAP;
2672                         if (sg_dig_status & (1 << 20))
2673                                 remote_adv |= LPA_PAUSE_ASYM;
2674
2675                         tg3_setup_flow_control(tp, local_adv, remote_adv);
2676                         current_link_up = 1;
2677                         tp->serdes_counter = 0;
2678                         tp->tg3_flags2 &= ~TG3_FLG2_PARALLEL_DETECT;
2679                 } else if (!(sg_dig_status & (1 << 1))) {
2680                         if (tp->serdes_counter)
2681                                 tp->serdes_counter--;
2682                         else {
2683                                 if (workaround) {
2684                                         u32 val = serdes_cfg;
2685
2686                                         if (port_a)
2687                                                 val |= 0xc010000;
2688                                         else
2689                                                 val |= 0x4010000;
2690
2691                                         tw32_f(MAC_SERDES_CFG, val);
2692                                 }
2693
2694                                 tw32_f(SG_DIG_CTRL, 0x01388400);
2695                                 udelay(40);
2696
2697                                 /* Link parallel detection - link is up */
2698                                 /* only if we have PCS_SYNC and not */
2699                                 /* receiving config code words */
2700                                 mac_status = tr32(MAC_STATUS);
2701                                 if ((mac_status & MAC_STATUS_PCS_SYNCED) &&
2702                                     !(mac_status & MAC_STATUS_RCVD_CFG)) {
2703                                         tg3_setup_flow_control(tp, 0, 0);
2704                                         current_link_up = 1;
2705                                         tp->tg3_flags2 |=
2706                                                 TG3_FLG2_PARALLEL_DETECT;
2707                                         tp->serdes_counter =
2708                                                 SERDES_PARALLEL_DET_TIMEOUT;
2709                                 } else
2710                                         goto restart_autoneg;
2711                         }
2712                 }
2713         } else {
2714                 tp->serdes_counter = SERDES_AN_TIMEOUT_5704S;
2715                 tp->tg3_flags2 &= ~TG3_FLG2_PARALLEL_DETECT;
2716         }
2717
2718 out:
2719         return current_link_up;
2720 }
2721
2722 static int tg3_setup_fiber_by_hand(struct tg3 *tp, u32 mac_status)
2723 {
2724         int current_link_up = 0;
2725
2726         if (!(mac_status & MAC_STATUS_PCS_SYNCED))
2727                 goto out;
2728
2729         if (tp->link_config.autoneg == AUTONEG_ENABLE) {
2730                 u32 flags;
2731                 int i;
2732
2733                 if (fiber_autoneg(tp, &flags)) {
2734                         u32 local_adv, remote_adv;
2735
2736                         local_adv = ADVERTISE_PAUSE_CAP;
2737                         remote_adv = 0;
2738                         if (flags & MR_LP_ADV_SYM_PAUSE)
2739                                 remote_adv |= LPA_PAUSE_CAP;
2740                         if (flags & MR_LP_ADV_ASYM_PAUSE)
2741                                 remote_adv |= LPA_PAUSE_ASYM;
2742
2743                         tg3_setup_flow_control(tp, local_adv, remote_adv);
2744
2745                         current_link_up = 1;
2746                 }
2747                 for (i = 0; i < 30; i++) {
2748                         udelay(20);
2749                         tw32_f(MAC_STATUS,
2750                                (MAC_STATUS_SYNC_CHANGED |
2751                                 MAC_STATUS_CFG_CHANGED));
2752                         udelay(40);
2753                         if ((tr32(MAC_STATUS) &
2754                              (MAC_STATUS_SYNC_CHANGED |
2755                               MAC_STATUS_CFG_CHANGED)) == 0)
2756                                 break;
2757                 }
2758
2759                 mac_status = tr32(MAC_STATUS);
2760                 if (current_link_up == 0 &&
2761                     (mac_status & MAC_STATUS_PCS_SYNCED) &&
2762                     !(mac_status & MAC_STATUS_RCVD_CFG))
2763                         current_link_up = 1;
2764         } else {
2765                 /* Forcing 1000FD link up. */
2766                 current_link_up = 1;
2767
2768                 tw32_f(MAC_MODE, (tp->mac_mode | MAC_MODE_SEND_CONFIGS));
2769                 udelay(40);
2770
2771                 tw32_f(MAC_MODE, tp->mac_mode);
2772                 udelay(40);
2773         }
2774
2775 out:
2776         return current_link_up;
2777 }
2778
2779 static int tg3_setup_fiber_phy(struct tg3 *tp, int force_reset)
2780 {
2781         u32 orig_pause_cfg;
2782         u16 orig_active_speed;
2783         u8 orig_active_duplex;
2784         u32 mac_status;
2785         int current_link_up;
2786         int i;
2787
2788         orig_pause_cfg =
2789                 (tp->tg3_flags & (TG3_FLAG_RX_PAUSE |
2790                                   TG3_FLAG_TX_PAUSE));
2791         orig_active_speed = tp->link_config.active_speed;
2792         orig_active_duplex = tp->link_config.active_duplex;
2793
2794         if (!(tp->tg3_flags2 & TG3_FLG2_HW_AUTONEG) &&
2795             netif_carrier_ok(tp->dev) &&
2796             (tp->tg3_flags & TG3_FLAG_INIT_COMPLETE)) {
2797                 mac_status = tr32(MAC_STATUS);
2798                 mac_status &= (MAC_STATUS_PCS_SYNCED |
2799                                MAC_STATUS_SIGNAL_DET |
2800                                MAC_STATUS_CFG_CHANGED |
2801                                MAC_STATUS_RCVD_CFG);
2802                 if (mac_status == (MAC_STATUS_PCS_SYNCED |
2803                                    MAC_STATUS_SIGNAL_DET)) {
2804                         tw32_f(MAC_STATUS, (MAC_STATUS_SYNC_CHANGED |
2805                                             MAC_STATUS_CFG_CHANGED));
2806                         return 0;
2807                 }
2808         }
2809
2810         tw32_f(MAC_TX_AUTO_NEG, 0);
2811
2812         tp->mac_mode &= ~(MAC_MODE_PORT_MODE_MASK | MAC_MODE_HALF_DUPLEX);
2813         tp->mac_mode |= MAC_MODE_PORT_MODE_TBI;
2814         tw32_f(MAC_MODE, tp->mac_mode);
2815         udelay(40);
2816
2817         if (tp->phy_id == PHY_ID_BCM8002)
2818                 tg3_init_bcm8002(tp);
2819
2820         /* Enable link change event even when serdes polling.  */
2821         tw32_f(MAC_EVENT, MAC_EVENT_LNKSTATE_CHANGED);
2822         udelay(40);
2823
2824         current_link_up = 0;
2825         mac_status = tr32(MAC_STATUS);
2826
2827         if (tp->tg3_flags2 & TG3_FLG2_HW_AUTONEG)
2828                 current_link_up = tg3_setup_fiber_hw_autoneg(tp, mac_status);
2829         else
2830                 current_link_up = tg3_setup_fiber_by_hand(tp, mac_status);
2831
2832         tp->hw_status->status =
2833                 (SD_STATUS_UPDATED |
2834                  (tp->hw_status->status & ~SD_STATUS_LINK_CHG));
2835
2836         for (i = 0; i < 100; i++) {
2837                 tw32_f(MAC_STATUS, (MAC_STATUS_SYNC_CHANGED |
2838                                     MAC_STATUS_CFG_CHANGED));
2839                 udelay(5);
2840                 if ((tr32(MAC_STATUS) & (MAC_STATUS_SYNC_CHANGED |
2841                                          MAC_STATUS_CFG_CHANGED |
2842                                          MAC_STATUS_LNKSTATE_CHANGED)) == 0)
2843                         break;
2844         }
2845
2846         mac_status = tr32(MAC_STATUS);
2847         if ((mac_status & MAC_STATUS_PCS_SYNCED) == 0) {
2848                 current_link_up = 0;
2849                 if (tp->link_config.autoneg == AUTONEG_ENABLE &&
2850                     tp->serdes_counter == 0) {
2851                         tw32_f(MAC_MODE, (tp->mac_mode |
2852                                           MAC_MODE_SEND_CONFIGS));
2853                         udelay(1);
2854                         tw32_f(MAC_MODE, tp->mac_mode);
2855                 }
2856         }
2857
2858         if (current_link_up == 1) {
2859                 tp->link_config.active_speed = SPEED_1000;
2860                 tp->link_config.active_duplex = DUPLEX_FULL;
2861                 tw32(MAC_LED_CTRL, (tp->led_ctrl |
2862                                     LED_CTRL_LNKLED_OVERRIDE |
2863                                     LED_CTRL_1000MBPS_ON));
2864         } else {
2865                 tp->link_config.active_speed = SPEED_INVALID;
2866                 tp->link_config.active_duplex = DUPLEX_INVALID;
2867                 tw32(MAC_LED_CTRL, (tp->led_ctrl |
2868                                     LED_CTRL_LNKLED_OVERRIDE |
2869                                     LED_CTRL_TRAFFIC_OVERRIDE));
2870         }
2871
2872         if (current_link_up != netif_carrier_ok(tp->dev)) {
2873                 if (current_link_up)
2874                         netif_carrier_on(tp->dev);
2875                 else
2876                         netif_carrier_off(tp->dev);
2877                 tg3_link_report(tp);
2878         } else {
2879                 u32 now_pause_cfg =
2880                         tp->tg3_flags & (TG3_FLAG_RX_PAUSE |
2881                                          TG3_FLAG_TX_PAUSE);
2882                 if (orig_pause_cfg != now_pause_cfg ||
2883                     orig_active_speed != tp->link_config.active_speed ||
2884                     orig_active_duplex != tp->link_config.active_duplex)
2885                         tg3_link_report(tp);
2886         }
2887
2888         return 0;
2889 }
2890
2891 static int tg3_setup_fiber_mii_phy(struct tg3 *tp, int force_reset)
2892 {
2893         int current_link_up, err = 0;
2894         u32 bmsr, bmcr;
2895         u16 current_speed;
2896         u8 current_duplex;
2897
2898         tp->mac_mode |= MAC_MODE_PORT_MODE_GMII;
2899         tw32_f(MAC_MODE, tp->mac_mode);
2900         udelay(40);
2901
2902         tw32(MAC_EVENT, 0);
2903
2904         tw32_f(MAC_STATUS,
2905              (MAC_STATUS_SYNC_CHANGED |
2906               MAC_STATUS_CFG_CHANGED |
2907               MAC_STATUS_MI_COMPLETION |
2908               MAC_STATUS_LNKSTATE_CHANGED));
2909         udelay(40);
2910
2911         if (force_reset)
2912                 tg3_phy_reset(tp);
2913
2914         current_link_up = 0;
2915         current_speed = SPEED_INVALID;
2916         current_duplex = DUPLEX_INVALID;
2917
2918         err |= tg3_readphy(tp, MII_BMSR, &bmsr);
2919         err |= tg3_readphy(tp, MII_BMSR, &bmsr);
2920         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5714) {
2921                 if (tr32(MAC_TX_STATUS) & TX_STATUS_LINK_UP)
2922                         bmsr |= BMSR_LSTATUS;
2923                 else
2924                         bmsr &= ~BMSR_LSTATUS;
2925         }
2926
2927         err |= tg3_readphy(tp, MII_BMCR, &bmcr);
2928
2929         if ((tp->link_config.autoneg == AUTONEG_ENABLE) && !force_reset &&
2930             (tp->tg3_flags2 & TG3_FLG2_PARALLEL_DETECT)) {
2931                 /* do nothing, just check for link up at the end */
2932         } else if (tp->link_config.autoneg == AUTONEG_ENABLE) {
2933                 u32 adv, new_adv;
2934
2935                 err |= tg3_readphy(tp, MII_ADVERTISE, &adv);
2936                 new_adv = adv & ~(ADVERTISE_1000XFULL | ADVERTISE_1000XHALF |
2937                                   ADVERTISE_1000XPAUSE |
2938                                   ADVERTISE_1000XPSE_ASYM |
2939                                   ADVERTISE_SLCT);
2940
2941                 /* Always advertise symmetric PAUSE just like copper */
2942                 new_adv |= ADVERTISE_1000XPAUSE;
2943
2944                 if (tp->link_config.advertising & ADVERTISED_1000baseT_Half)
2945                         new_adv |= ADVERTISE_1000XHALF;
2946                 if (tp->link_config.advertising & ADVERTISED_1000baseT_Full)
2947                         new_adv |= ADVERTISE_1000XFULL;
2948
2949                 if ((new_adv != adv) || !(bmcr & BMCR_ANENABLE)) {
2950                         tg3_writephy(tp, MII_ADVERTISE, new_adv);
2951                         bmcr |= BMCR_ANENABLE | BMCR_ANRESTART;
2952                         tg3_writephy(tp, MII_BMCR, bmcr);
2953
2954                         tw32_f(MAC_EVENT, MAC_EVENT_LNKSTATE_CHANGED);
2955                         tp->serdes_counter = SERDES_AN_TIMEOUT_5714S;
2956                         tp->tg3_flags2 &= ~TG3_FLG2_PARALLEL_DETECT;
2957
2958                         return err;
2959                 }
2960         } else {
2961                 u32 new_bmcr;
2962
2963                 bmcr &= ~BMCR_SPEED1000;
2964                 new_bmcr = bmcr & ~(BMCR_ANENABLE | BMCR_FULLDPLX);
2965
2966                 if (tp->link_config.duplex == DUPLEX_FULL)
2967                         new_bmcr |= BMCR_FULLDPLX;
2968
2969                 if (new_bmcr != bmcr) {
2970                         /* BMCR_SPEED1000 is a reserved bit that needs
2971                          * to be set on write.
2972                          */
2973                         new_bmcr |= BMCR_SPEED1000;
2974
2975                         /* Force a linkdown */
2976                         if (netif_carrier_ok(tp->dev)) {
2977                                 u32 adv;
2978
2979                                 err |= tg3_readphy(tp, MII_ADVERTISE, &adv);
2980                                 adv &= ~(ADVERTISE_1000XFULL |
2981                                          ADVERTISE_1000XHALF |
2982                                          ADVERTISE_SLCT);
2983                                 tg3_writephy(tp, MII_ADVERTISE, adv);
2984                                 tg3_writephy(tp, MII_BMCR, bmcr |
2985                                                            BMCR_ANRESTART |
2986                                                            BMCR_ANENABLE);
2987                                 udelay(10);
2988                                 netif_carrier_off(tp->dev);
2989                         }
2990                         tg3_writephy(tp, MII_BMCR, new_bmcr);
2991                         bmcr = new_bmcr;
2992                         err |= tg3_readphy(tp, MII_BMSR, &bmsr);
2993                         err |= tg3_readphy(tp, MII_BMSR, &bmsr);
2994                         if (GET_ASIC_REV(tp->pci_chip_rev_id) ==
2995                             ASIC_REV_5714) {
2996                                 if (tr32(MAC_TX_STATUS) & TX_STATUS_LINK_UP)
2997                                         bmsr |= BMSR_LSTATUS;
2998                                 else
2999                                         bmsr &= ~BMSR_LSTATUS;
3000                         }
3001                         tp->tg3_flags2 &= ~TG3_FLG2_PARALLEL_DETECT;
3002                 }
3003         }
3004
3005         if (bmsr & BMSR_LSTATUS) {
3006                 current_speed = SPEED_1000;
3007                 current_link_up = 1;
3008                 if (bmcr & BMCR_FULLDPLX)
3009                         current_duplex = DUPLEX_FULL;
3010                 else
3011                         current_duplex = DUPLEX_HALF;
3012
3013                 if (bmcr & BMCR_ANENABLE) {
3014                         u32 local_adv, remote_adv, common;
3015
3016                         err |= tg3_readphy(tp, MII_ADVERTISE, &local_adv);
3017                         err |= tg3_readphy(tp, MII_LPA, &remote_adv);
3018                         common = local_adv & remote_adv;
3019                         if (common & (ADVERTISE_1000XHALF |
3020                                       ADVERTISE_1000XFULL)) {
3021                                 if (common & ADVERTISE_1000XFULL)
3022                                         current_duplex = DUPLEX_FULL;
3023                                 else
3024                                         current_duplex = DUPLEX_HALF;
3025
3026                                 tg3_setup_flow_control(tp, local_adv,
3027                                                        remote_adv);
3028                         }
3029                         else
3030                                 current_link_up = 0;
3031                 }
3032         }
3033
3034         tp->mac_mode &= ~MAC_MODE_HALF_DUPLEX;
3035         if (tp->link_config.active_duplex == DUPLEX_HALF)
3036                 tp->mac_mode |= MAC_MODE_HALF_DUPLEX;
3037
3038         tw32_f(MAC_MODE, tp->mac_mode);
3039         udelay(40);
3040
3041         tw32_f(MAC_EVENT, MAC_EVENT_LNKSTATE_CHANGED);
3042
3043         tp->link_config.active_speed = current_speed;
3044         tp->link_config.active_duplex = current_duplex;
3045
3046         if (current_link_up != netif_carrier_ok(tp->dev)) {
3047                 if (current_link_up)
3048                         netif_carrier_on(tp->dev);
3049                 else {
3050                         netif_carrier_off(tp->dev);
3051                         tp->tg3_flags2 &= ~TG3_FLG2_PARALLEL_DETECT;
3052                 }
3053                 tg3_link_report(tp);
3054         }
3055         return err;
3056 }
3057
3058 static void tg3_serdes_parallel_detect(struct tg3 *tp)
3059 {
3060         if (tp->serdes_counter) {
3061                 /* Give autoneg time to complete. */
3062                 tp->serdes_counter--;
3063                 return;
3064         }
3065         if (!netif_carrier_ok(tp->dev) &&
3066             (tp->link_config.autoneg == AUTONEG_ENABLE)) {
3067                 u32 bmcr;
3068
3069                 tg3_readphy(tp, MII_BMCR, &bmcr);
3070                 if (bmcr & BMCR_ANENABLE) {
3071                         u32 phy1, phy2;
3072
3073                         /* Select shadow register 0x1f */
3074                         tg3_writephy(tp, 0x1c, 0x7c00);
3075                         tg3_readphy(tp, 0x1c, &phy1);
3076
3077                         /* Select expansion interrupt status register */
3078                         tg3_writephy(tp, 0x17, 0x0f01);
3079                         tg3_readphy(tp, 0x15, &phy2);
3080                         tg3_readphy(tp, 0x15, &phy2);
3081
3082                         if ((phy1 & 0x10) && !(phy2 & 0x20)) {
3083                                 /* We have signal detect and not receiving
3084                                  * config code words, link is up by parallel
3085                                  * detection.
3086                                  */
3087
3088                                 bmcr &= ~BMCR_ANENABLE;
3089                                 bmcr |= BMCR_SPEED1000 | BMCR_FULLDPLX;
3090                                 tg3_writephy(tp, MII_BMCR, bmcr);
3091                                 tp->tg3_flags2 |= TG3_FLG2_PARALLEL_DETECT;
3092                         }
3093                 }
3094         }
3095         else if (netif_carrier_ok(tp->dev) &&
3096                  (tp->link_config.autoneg == AUTONEG_ENABLE) &&
3097                  (tp->tg3_flags2 & TG3_FLG2_PARALLEL_DETECT)) {
3098                 u32 phy2;
3099
3100                 /* Select expansion interrupt status register */
3101                 tg3_writephy(tp, 0x17, 0x0f01);
3102                 tg3_readphy(tp, 0x15, &phy2);
3103                 if (phy2 & 0x20) {
3104                         u32 bmcr;
3105
3106                         /* Config code words received, turn on autoneg. */
3107                         tg3_readphy(tp, MII_BMCR, &bmcr);
3108                         tg3_writephy(tp, MII_BMCR, bmcr | BMCR_ANENABLE);
3109
3110                         tp->tg3_flags2 &= ~TG3_FLG2_PARALLEL_DETECT;
3111
3112                 }
3113         }
3114 }
3115
3116 static int tg3_setup_phy(struct tg3 *tp, int force_reset)
3117 {
3118         int err;
3119
3120         if (tp->tg3_flags2 & TG3_FLG2_PHY_SERDES) {
3121                 err = tg3_setup_fiber_phy(tp, force_reset);
3122         } else if (tp->tg3_flags2 & TG3_FLG2_MII_SERDES) {
3123                 err = tg3_setup_fiber_mii_phy(tp, force_reset);
3124         } else {
3125                 err = tg3_setup_copper_phy(tp, force_reset);
3126         }
3127
3128         if (tp->link_config.active_speed == SPEED_1000 &&
3129             tp->link_config.active_duplex == DUPLEX_HALF)
3130                 tw32(MAC_TX_LENGTHS,
3131                      ((2 << TX_LENGTHS_IPG_CRS_SHIFT) |
3132                       (6 << TX_LENGTHS_IPG_SHIFT) |
3133                       (0xff << TX_LENGTHS_SLOT_TIME_SHIFT)));
3134         else
3135                 tw32(MAC_TX_LENGTHS,
3136                      ((2 << TX_LENGTHS_IPG_CRS_SHIFT) |
3137                       (6 << TX_LENGTHS_IPG_SHIFT) |
3138                       (32 << TX_LENGTHS_SLOT_TIME_SHIFT)));
3139
3140         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS)) {
3141                 if (netif_carrier_ok(tp->dev)) {
3142                         tw32(HOSTCC_STAT_COAL_TICKS,
3143                              tp->coal.stats_block_coalesce_usecs);
3144                 } else {
3145                         tw32(HOSTCC_STAT_COAL_TICKS, 0);
3146                 }
3147         }
3148
3149         if (tp->tg3_flags & TG3_FLAG_ASPM_WORKAROUND) {
3150                 u32 val = tr32(PCIE_PWR_MGMT_THRESH);
3151                 if (!netif_carrier_ok(tp->dev))
3152                         val = (val & ~PCIE_PWR_MGMT_L1_THRESH_MSK) |
3153                               tp->pwrmgmt_thresh;
3154                 else
3155                         val |= PCIE_PWR_MGMT_L1_THRESH_MSK;
3156                 tw32(PCIE_PWR_MGMT_THRESH, val);
3157         }
3158
3159         return err;
3160 }
3161
3162 /* This is called whenever we suspect that the system chipset is re-
3163  * ordering the sequence of MMIO to the tx send mailbox. The symptom
3164  * is bogus tx completions. We try to recover by setting the
3165  * TG3_FLAG_MBOX_WRITE_REORDER flag and resetting the chip later
3166  * in the workqueue.
3167  */
3168 static void tg3_tx_recover(struct tg3 *tp)
3169 {
3170         BUG_ON((tp->tg3_flags & TG3_FLAG_MBOX_WRITE_REORDER) ||
3171                tp->write32_tx_mbox == tg3_write_indirect_mbox);
3172
3173         printk(KERN_WARNING PFX "%s: The system may be re-ordering memory-"
3174                "mapped I/O cycles to the network device, attempting to "
3175                "recover. Please report the problem to the driver maintainer "
3176                "and include system chipset information.\n", tp->dev->name);
3177
3178         spin_lock(&tp->lock);
3179         tp->tg3_flags |= TG3_FLAG_TX_RECOVERY_PENDING;
3180         spin_unlock(&tp->lock);
3181 }
3182
3183 static inline u32 tg3_tx_avail(struct tg3 *tp)
3184 {
3185         smp_mb();
3186         return (tp->tx_pending -
3187                 ((tp->tx_prod - tp->tx_cons) & (TG3_TX_RING_SIZE - 1)));
3188 }
3189
3190 /* Tigon3 never reports partial packet sends.  So we do not
3191  * need special logic to handle SKBs that have not had all
3192  * of their frags sent yet, like SunGEM does.
3193  */
3194 static void tg3_tx(struct tg3 *tp)
3195 {
3196         u32 hw_idx = tp->hw_status->idx[0].tx_consumer;
3197         u32 sw_idx = tp->tx_cons;
3198
3199         while (sw_idx != hw_idx) {
3200                 struct tx_ring_info *ri = &tp->tx_buffers[sw_idx];
3201                 struct sk_buff *skb = ri->skb;
3202                 int i, tx_bug = 0;
3203
3204                 if (unlikely(skb == NULL)) {
3205                         tg3_tx_recover(tp);
3206                         return;
3207                 }
3208
3209                 pci_unmap_single(tp->pdev,
3210                                  pci_unmap_addr(ri, mapping),
3211                                  skb_headlen(skb),
3212                                  PCI_DMA_TODEVICE);
3213
3214                 ri->skb = NULL;
3215
3216                 sw_idx = NEXT_TX(sw_idx);
3217
3218                 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
3219                         ri = &tp->tx_buffers[sw_idx];
3220                         if (unlikely(ri->skb != NULL || sw_idx == hw_idx))
3221                                 tx_bug = 1;
3222
3223                         pci_unmap_page(tp->pdev,
3224                                        pci_unmap_addr(ri, mapping),
3225                                        skb_shinfo(skb)->frags[i].size,
3226                                        PCI_DMA_TODEVICE);
3227
3228                         sw_idx = NEXT_TX(sw_idx);
3229                 }
3230
3231                 dev_kfree_skb(skb);
3232
3233                 if (unlikely(tx_bug)) {
3234                         tg3_tx_recover(tp);
3235                         return;
3236                 }
3237         }
3238
3239         tp->tx_cons = sw_idx;
3240
3241         /* Need to make the tx_cons update visible to tg3_start_xmit()
3242          * before checking for netif_queue_stopped().  Without the
3243          * memory barrier, there is a small possibility that tg3_start_xmit()
3244          * will miss it and cause the queue to be stopped forever.
3245          */
3246         smp_mb();
3247
3248         if (unlikely(netif_queue_stopped(tp->dev) &&
3249                      (tg3_tx_avail(tp) > TG3_TX_WAKEUP_THRESH(tp)))) {
3250                 netif_tx_lock(tp->dev);
3251                 if (netif_queue_stopped(tp->dev) &&
3252                     (tg3_tx_avail(tp) > TG3_TX_WAKEUP_THRESH(tp)))
3253                         netif_wake_queue(tp->dev);
3254                 netif_tx_unlock(tp->dev);
3255         }
3256 }
3257
3258 /* Returns size of skb allocated or < 0 on error.
3259  *
3260  * We only need to fill in the address because the other members
3261  * of the RX descriptor are invariant, see tg3_init_rings.
3262  *
3263  * Note the purposeful assymetry of cpu vs. chip accesses.  For
3264  * posting buffers we only dirty the first cache line of the RX
3265  * descriptor (containing the address).  Whereas for the RX status
3266  * buffers the cpu only reads the last cacheline of the RX descriptor
3267  * (to fetch the error flags, vlan tag, checksum, and opaque cookie).
3268  */
3269 static int tg3_alloc_rx_skb(struct tg3 *tp, u32 opaque_key,
3270                             int src_idx, u32 dest_idx_unmasked)
3271 {
3272         struct tg3_rx_buffer_desc *desc;
3273         struct ring_info *map, *src_map;
3274         struct sk_buff *skb;
3275         dma_addr_t mapping;
3276         int skb_size, dest_idx;
3277
3278         src_map = NULL;
3279         switch (opaque_key) {
3280         case RXD_OPAQUE_RING_STD:
3281                 dest_idx = dest_idx_unmasked % TG3_RX_RING_SIZE;
3282                 desc = &tp->rx_std[dest_idx];
3283                 map = &tp->rx_std_buffers[dest_idx];
3284                 if (src_idx >= 0)
3285                         src_map = &tp->rx_std_buffers[src_idx];
3286                 skb_size = tp->rx_pkt_buf_sz;
3287                 break;
3288
3289         case RXD_OPAQUE_RING_JUMBO:
3290                 dest_idx = dest_idx_unmasked % TG3_RX_JUMBO_RING_SIZE;
3291                 desc = &tp->rx_jumbo[dest_idx];
3292                 map = &tp->rx_jumbo_buffers[dest_idx];
3293                 if (src_idx >= 0)
3294                         src_map = &tp->rx_jumbo_buffers[src_idx];
3295                 skb_size = RX_JUMBO_PKT_BUF_SZ;
3296                 break;
3297
3298         default:
3299                 return -EINVAL;
3300         };
3301
3302         /* Do not overwrite any of the map or rp information
3303          * until we are sure we can commit to a new buffer.
3304          *
3305          * Callers depend upon this behavior and assume that
3306          * we leave everything unchanged if we fail.
3307          */
3308         skb = netdev_alloc_skb(tp->dev, skb_size);
3309         if (skb == NULL)
3310                 return -ENOMEM;
3311
3312         skb_reserve(skb, tp->rx_offset);
3313
3314         mapping = pci_map_single(tp->pdev, skb->data,
3315                                  skb_size - tp->rx_offset,
3316                                  PCI_DMA_FROMDEVICE);
3317
3318         map->skb = skb;
3319         pci_unmap_addr_set(map, mapping, mapping);
3320
3321         if (src_map != NULL)
3322                 src_map->skb = NULL;
3323
3324         desc->addr_hi = ((u64)mapping >> 32);
3325         desc->addr_lo = ((u64)mapping & 0xffffffff);
3326
3327         return skb_size;
3328 }
3329
3330 /* We only need to move over in the address because the other
3331  * members of the RX descriptor are invariant.  See notes above
3332  * tg3_alloc_rx_skb for full details.
3333  */
3334 static void tg3_recycle_rx(struct tg3 *tp, u32 opaque_key,
3335                            int src_idx, u32 dest_idx_unmasked)
3336 {
3337         struct tg3_rx_buffer_desc *src_desc, *dest_desc;
3338         struct ring_info *src_map, *dest_map;
3339         int dest_idx;
3340
3341         switch (opaque_key) {
3342         case RXD_OPAQUE_RING_STD:
3343                 dest_idx = dest_idx_unmasked % TG3_RX_RING_SIZE;
3344                 dest_desc = &tp->rx_std[dest_idx];
3345                 dest_map = &tp->rx_std_buffers[dest_idx];
3346                 src_desc = &tp->rx_std[src_idx];
3347                 src_map = &tp->rx_std_buffers[src_idx];
3348                 break;
3349
3350         case RXD_OPAQUE_RING_JUMBO:
3351                 dest_idx = dest_idx_unmasked % TG3_RX_JUMBO_RING_SIZE;
3352                 dest_desc = &tp->rx_jumbo[dest_idx];
3353                 dest_map = &tp->rx_jumbo_buffers[dest_idx];
3354                 src_desc = &tp->rx_jumbo[src_idx];
3355                 src_map = &tp->rx_jumbo_buffers[src_idx];
3356                 break;
3357
3358         default:
3359                 return;
3360         };
3361
3362         dest_map->skb = src_map->skb;
3363         pci_unmap_addr_set(dest_map, mapping,
3364                            pci_unmap_addr(src_map, mapping));
3365         dest_desc->addr_hi = src_desc->addr_hi;
3366         dest_desc->addr_lo = src_desc->addr_lo;
3367
3368         src_map->skb = NULL;
3369 }
3370
3371 #if TG3_VLAN_TAG_USED
3372 static int tg3_vlan_rx(struct tg3 *tp, struct sk_buff *skb, u16 vlan_tag)
3373 {
3374         return vlan_hwaccel_receive_skb(skb, tp->vlgrp, vlan_tag);
3375 }
3376 #endif
3377
3378 /* The RX ring scheme is composed of multiple rings which post fresh
3379  * buffers to the chip, and one special ring the chip uses to report
3380  * status back to the host.
3381  *
3382  * The special ring reports the status of received packets to the
3383  * host.  The chip does not write into the original descriptor the
3384  * RX buffer was obtained from.  The chip simply takes the original
3385  * descriptor as provided by the host, updates the status and length
3386  * field, then writes this into the next status ring entry.
3387  *
3388  * Each ring the host uses to post buffers to the chip is described
3389  * by a TG3_BDINFO entry in the chips SRAM area.  When a packet arrives,
3390  * it is first placed into the on-chip ram.  When the packet's length
3391  * is known, it walks down the TG3_BDINFO entries to select the ring.
3392  * Each TG3_BDINFO specifies a MAXLEN field and the first TG3_BDINFO
3393  * which is within the range of the new packet's length is chosen.
3394  *
3395  * The "separate ring for rx status" scheme may sound queer, but it makes
3396  * sense from a cache coherency perspective.  If only the host writes
3397  * to the buffer post rings, and only the chip writes to the rx status
3398  * rings, then cache lines never move beyond shared-modified state.
3399  * If both the host and chip were to write into the same ring, cache line
3400  * eviction could occur since both entities want it in an exclusive state.
3401  */
3402 static int tg3_rx(struct tg3 *tp, int budget)
3403 {
3404         u32 work_mask, rx_std_posted = 0;
3405         u32 sw_idx = tp->rx_rcb_ptr;
3406         u16 hw_idx;
3407         int received;
3408
3409         hw_idx = tp->hw_status->idx[0].rx_producer;
3410         /*
3411          * We need to order the read of hw_idx and the read of
3412          * the opaque cookie.
3413          */
3414         rmb();
3415         work_mask = 0;
3416         received = 0;
3417         while (sw_idx != hw_idx && budget > 0) {
3418                 struct tg3_rx_buffer_desc *desc = &tp->rx_rcb[sw_idx];
3419                 unsigned int len;
3420                 struct sk_buff *skb;
3421                 dma_addr_t dma_addr;
3422                 u32 opaque_key, desc_idx, *post_ptr;
3423
3424                 desc_idx = desc->opaque & RXD_OPAQUE_INDEX_MASK;
3425                 opaque_key = desc->opaque & RXD_OPAQUE_RING_MASK;
3426                 if (opaque_key == RXD_OPAQUE_RING_STD) {
3427                         dma_addr = pci_unmap_addr(&tp->rx_std_buffers[desc_idx],
3428                                                   mapping);
3429                         skb = tp->rx_std_buffers[desc_idx].skb;
3430                         post_ptr = &tp->rx_std_ptr;
3431                         rx_std_posted++;
3432                 } else if (opaque_key == RXD_OPAQUE_RING_JUMBO) {
3433                         dma_addr = pci_unmap_addr(&tp->rx_jumbo_buffers[desc_idx],
3434                                                   mapping);
3435                         skb = tp->rx_jumbo_buffers[desc_idx].skb;
3436                         post_ptr = &tp->rx_jumbo_ptr;
3437                 }
3438                 else {
3439                         goto next_pkt_nopost;
3440                 }
3441
3442                 work_mask |= opaque_key;
3443
3444                 if ((desc->err_vlan & RXD_ERR_MASK) != 0 &&
3445                     (desc->err_vlan != RXD_ERR_ODD_NIBBLE_RCVD_MII)) {
3446                 drop_it:
3447                         tg3_recycle_rx(tp, opaque_key,
3448                                        desc_idx, *post_ptr);
3449                 drop_it_no_recycle:
3450                         /* Other statistics kept track of by card. */
3451                         tp->net_stats.rx_dropped++;
3452                         goto next_pkt;
3453                 }
3454
3455                 len = ((desc->idx_len & RXD_LEN_MASK) >> RXD_LEN_SHIFT) - 4; /* omit crc */
3456
3457                 if (len > RX_COPY_THRESHOLD
3458                         && tp->rx_offset == 2
3459                         /* rx_offset != 2 iff this is a 5701 card running
3460                          * in PCI-X mode [see tg3_get_invariants()] */
3461                 ) {
3462                         int skb_size;
3463
3464                         skb_size = tg3_alloc_rx_skb(tp, opaque_key,
3465                                                     desc_idx, *post_ptr);
3466                         if (skb_size < 0)
3467                                 goto drop_it;
3468
3469                         pci_unmap_single(tp->pdev, dma_addr,
3470                                          skb_size - tp->rx_offset,
3471                                          PCI_DMA_FROMDEVICE);
3472
3473                         skb_put(skb, len);
3474                 } else {
3475                         struct sk_buff *copy_skb;
3476
3477                         tg3_recycle_rx(tp, opaque_key,
3478                                        desc_idx, *post_ptr);
3479
3480                         copy_skb = netdev_alloc_skb(tp->dev, len + 2);
3481                         if (copy_skb == NULL)
3482                                 goto drop_it_no_recycle;
3483
3484                         skb_reserve(copy_skb, 2);
3485                         skb_put(copy_skb, len);
3486                         pci_dma_sync_single_for_cpu(tp->pdev, dma_addr, len, PCI_DMA_FROMDEVICE);
3487                         skb_copy_from_linear_data(skb, copy_skb->data, len);
3488                         pci_dma_sync_single_for_device(tp->pdev, dma_addr, len, PCI_DMA_FROMDEVICE);
3489
3490                         /* We'll reuse the original ring buffer. */
3491                         skb = copy_skb;
3492                 }
3493
3494                 if ((tp->tg3_flags & TG3_FLAG_RX_CHECKSUMS) &&
3495                     (desc->type_flags & RXD_FLAG_TCPUDP_CSUM) &&
3496                     (((desc->ip_tcp_csum & RXD_TCPCSUM_MASK)
3497                       >> RXD_TCPCSUM_SHIFT) == 0xffff))
3498                         skb->ip_summed = CHECKSUM_UNNECESSARY;
3499                 else
3500                         skb->ip_summed = CHECKSUM_NONE;
3501
3502                 skb->protocol = eth_type_trans(skb, tp->dev);
3503 #if TG3_VLAN_TAG_USED
3504                 if (tp->vlgrp != NULL &&
3505                     desc->type_flags & RXD_FLAG_VLAN) {
3506                         tg3_vlan_rx(tp, skb,
3507                                     desc->err_vlan & RXD_VLAN_MASK);
3508                 } else
3509 #endif
3510                         netif_receive_skb(skb);
3511
3512                 tp->dev->last_rx = jiffies;
3513                 received++;
3514                 budget--;
3515
3516 next_pkt:
3517                 (*post_ptr)++;
3518
3519                 if (unlikely(rx_std_posted >= tp->rx_std_max_post)) {
3520                         u32 idx = *post_ptr % TG3_RX_RING_SIZE;
3521
3522                         tw32_rx_mbox(MAILBOX_RCV_STD_PROD_IDX +
3523                                      TG3_64BIT_REG_LOW, idx);
3524                         work_mask &= ~RXD_OPAQUE_RING_STD;
3525                         rx_std_posted = 0;
3526                 }
3527 next_pkt_nopost:
3528                 sw_idx++;
3529                 sw_idx &= (TG3_RX_RCB_RING_SIZE(tp) - 1);
3530
3531                 /* Refresh hw_idx to see if there is new work */
3532                 if (sw_idx == hw_idx) {
3533                         hw_idx = tp->hw_status->idx[0].rx_producer;
3534                         rmb();
3535                 }
3536         }
3537
3538         /* ACK the status ring. */
3539         tp->rx_rcb_ptr = sw_idx;
3540         tw32_rx_mbox(MAILBOX_RCVRET_CON_IDX_0 + TG3_64BIT_REG_LOW, sw_idx);
3541
3542         /* Refill RX ring(s). */
3543         if (work_mask & RXD_OPAQUE_RING_STD) {
3544                 sw_idx = tp->rx_std_ptr % TG3_RX_RING_SIZE;
3545                 tw32_rx_mbox(MAILBOX_RCV_STD_PROD_IDX + TG3_64BIT_REG_LOW,
3546                              sw_idx);
3547         }
3548         if (work_mask & RXD_OPAQUE_RING_JUMBO) {
3549                 sw_idx = tp->rx_jumbo_ptr % TG3_RX_JUMBO_RING_SIZE;
3550                 tw32_rx_mbox(MAILBOX_RCV_JUMBO_PROD_IDX + TG3_64BIT_REG_LOW,
3551                              sw_idx);
3552         }
3553         mmiowb();
3554
3555         return received;
3556 }
3557
3558 static int tg3_poll_work(struct tg3 *tp, int work_done, int budget)
3559 {
3560         struct tg3_hw_status *sblk = tp->hw_status;
3561
3562         /* handle link change and other phy events */
3563         if (!(tp->tg3_flags &
3564               (TG3_FLAG_USE_LINKCHG_REG |
3565                TG3_FLAG_POLL_SERDES))) {
3566                 if (sblk->status & SD_STATUS_LINK_CHG) {
3567                         sblk->status = SD_STATUS_UPDATED |
3568                                 (sblk->status & ~SD_STATUS_LINK_CHG);
3569                         spin_lock(&tp->lock);
3570                         tg3_setup_phy(tp, 0);
3571                         spin_unlock(&tp->lock);
3572                 }
3573         }
3574
3575         /* run TX completion thread */
3576         if (sblk->idx[0].tx_consumer != tp->tx_cons) {
3577                 tg3_tx(tp);
3578                 if (unlikely(tp->tg3_flags & TG3_FLAG_TX_RECOVERY_PENDING))
3579                         return work_done;
3580         }
3581
3582         /* run RX thread, within the bounds set by NAPI.
3583          * All RX "locking" is done by ensuring outside
3584          * code synchronizes with tg3->napi.poll()
3585          */
3586         if (sblk->idx[0].rx_producer != tp->rx_rcb_ptr)
3587                 work_done += tg3_rx(tp, budget - work_done);
3588
3589         return work_done;
3590 }
3591
3592 static int tg3_poll(struct napi_struct *napi, int budget)
3593 {
3594         struct tg3 *tp = container_of(napi, struct tg3, napi);
3595         int work_done = 0;
3596         struct tg3_hw_status *sblk = tp->hw_status;
3597
3598         while (1) {
3599                 work_done = tg3_poll_work(tp, work_done, budget);
3600
3601                 if (unlikely(tp->tg3_flags & TG3_FLAG_TX_RECOVERY_PENDING))
3602                         goto tx_recovery;
3603
3604                 if (unlikely(work_done >= budget))
3605                         break;
3606
3607                 if (tp->tg3_flags & TG3_FLAG_TAGGED_STATUS) {
3608                         /* tp->last_tag is used in tg3_restart_ints() below
3609                          * to tell the hw how much work has been processed,
3610                          * so we must read it before checking for more work.
3611                          */
3612                         tp->last_tag = sblk->status_tag;
3613                         rmb();
3614                 } else
3615                         sblk->status &= ~SD_STATUS_UPDATED;
3616
3617                 if (likely(!tg3_has_work(tp))) {
3618                         netif_rx_complete(tp->dev, napi);
3619                         tg3_restart_ints(tp);
3620                         break;
3621                 }
3622         }
3623
3624         return work_done;
3625
3626 tx_recovery:
3627         /* work_done is guaranteed to be less than budget. */
3628         netif_rx_complete(tp->dev, napi);
3629         schedule_work(&tp->reset_task);
3630         return work_done;
3631 }
3632
3633 static void tg3_irq_quiesce(struct tg3 *tp)
3634 {
3635         BUG_ON(tp->irq_sync);
3636
3637         tp->irq_sync = 1;
3638         smp_mb();
3639
3640         synchronize_irq(tp->pdev->irq);
3641 }
3642
3643 static inline int tg3_irq_sync(struct tg3 *tp)
3644 {
3645         return tp->irq_sync;
3646 }
3647
3648 /* Fully shutdown all tg3 driver activity elsewhere in the system.
3649  * If irq_sync is non-zero, then the IRQ handler must be synchronized
3650  * with as well.  Most of the time, this is not necessary except when
3651  * shutting down the device.
3652  */
3653 static inline void tg3_full_lock(struct tg3 *tp, int irq_sync)
3654 {
3655         spin_lock_bh(&tp->lock);
3656         if (irq_sync)
3657                 tg3_irq_quiesce(tp);
3658 }
3659
3660 static inline void tg3_full_unlock(struct tg3 *tp)
3661 {
3662         spin_unlock_bh(&tp->lock);
3663 }
3664
3665 /* One-shot MSI handler - Chip automatically disables interrupt
3666  * after sending MSI so driver doesn't have to do it.
3667  */
3668 static irqreturn_t tg3_msi_1shot(int irq, void *dev_id)
3669 {
3670         struct net_device *dev = dev_id;
3671         struct tg3 *tp = netdev_priv(dev);
3672
3673         prefetch(tp->hw_status);
3674         prefetch(&tp->rx_rcb[tp->rx_rcb_ptr]);
3675
3676         if (likely(!tg3_irq_sync(tp)))
3677                 netif_rx_schedule(dev, &tp->napi);
3678
3679         return IRQ_HANDLED;
3680 }
3681
3682 /* MSI ISR - No need to check for interrupt sharing and no need to
3683  * flush status block and interrupt mailbox. PCI ordering rules
3684  * guarantee that MSI will arrive after the status block.
3685  */
3686 static irqreturn_t tg3_msi(int irq, void *dev_id)
3687 {
3688         struct net_device *dev = dev_id;
3689         struct tg3 *tp = netdev_priv(dev);
3690
3691         prefetch(tp->hw_status);
3692         prefetch(&tp->rx_rcb[tp->rx_rcb_ptr]);
3693         /*
3694          * Writing any value to intr-mbox-0 clears PCI INTA# and
3695          * chip-internal interrupt pending events.
3696          * Writing non-zero to intr-mbox-0 additional tells the
3697          * NIC to stop sending us irqs, engaging "in-intr-handler"
3698          * event coalescing.
3699          */
3700         tw32_mailbox(MAILBOX_INTERRUPT_0 + TG3_64BIT_REG_LOW, 0x00000001);
3701         if (likely(!tg3_irq_sync(tp)))
3702                 netif_rx_schedule(dev, &tp->napi);
3703
3704         return IRQ_RETVAL(1);
3705 }
3706
3707 static irqreturn_t tg3_interrupt(int irq, void *dev_id)
3708 {
3709         struct net_device *dev = dev_id;
3710         struct tg3 *tp = netdev_priv(dev);
3711         struct tg3_hw_status *sblk = tp->hw_status;
3712         unsigned int handled = 1;
3713
3714         /* In INTx mode, it is possible for the interrupt to arrive at
3715          * the CPU before the status block posted prior to the interrupt.
3716          * Reading the PCI State register will confirm whether the
3717          * interrupt is ours and will flush the status block.
3718          */
3719         if (unlikely(!(sblk->status & SD_STATUS_UPDATED))) {
3720                 if ((tp->tg3_flags & TG3_FLAG_CHIP_RESETTING) ||
3721                     (tr32(TG3PCI_PCISTATE) & PCISTATE_INT_NOT_ACTIVE)) {
3722                         handled = 0;
3723                         goto out;
3724                 }
3725         }
3726
3727         /*
3728          * Writing any value to intr-mbox-0 clears PCI INTA# and
3729          * chip-internal interrupt pending events.
3730          * Writing non-zero to intr-mbox-0 additional tells the
3731          * NIC to stop sending us irqs, engaging "in-intr-handler"
3732          * event coalescing.
3733          *
3734          * Flush the mailbox to de-assert the IRQ immediately to prevent
3735          * spurious interrupts.  The flush impacts performance but
3736          * excessive spurious interrupts can be worse in some cases.
3737          */
3738         tw32_mailbox_f(MAILBOX_INTERRUPT_0 + TG3_64BIT_REG_LOW, 0x00000001);
3739         if (tg3_irq_sync(tp))
3740                 goto out;
3741         sblk->status &= ~SD_STATUS_UPDATED;
3742         if (likely(tg3_has_work(tp))) {
3743                 prefetch(&tp->rx_rcb[tp->rx_rcb_ptr]);
3744                 netif_rx_schedule(dev, &tp->napi);
3745         } else {
3746                 /* No work, shared interrupt perhaps?  re-enable
3747                  * interrupts, and flush that PCI write
3748                  */
3749                 tw32_mailbox_f(MAILBOX_INTERRUPT_0 + TG3_64BIT_REG_LOW,
3750                                0x00000000);
3751         }
3752 out:
3753         return IRQ_RETVAL(handled);
3754 }
3755
3756 static irqreturn_t tg3_interrupt_tagged(int irq, void *dev_id)
3757 {
3758         struct net_device *dev = dev_id;
3759         struct tg3 *tp = netdev_priv(dev);
3760         struct tg3_hw_status *sblk = tp->hw_status;
3761         unsigned int handled = 1;
3762
3763         /* In INTx mode, it is possible for the interrupt to arrive at
3764          * the CPU before the status block posted prior to the interrupt.
3765          * Reading the PCI State register will confirm whether the
3766          * interrupt is ours and will flush the status block.
3767          */
3768         if (unlikely(sblk->status_tag == tp->last_tag)) {
3769                 if ((tp->tg3_flags & TG3_FLAG_CHIP_RESETTING) ||
3770                     (tr32(TG3PCI_PCISTATE) & PCISTATE_INT_NOT_ACTIVE)) {
3771                         handled = 0;
3772                         goto out;
3773                 }
3774         }
3775
3776         /*
3777          * writing any value to intr-mbox-0 clears PCI INTA# and
3778          * chip-internal interrupt pending events.
3779          * writing non-zero to intr-mbox-0 additional tells the
3780          * NIC to stop sending us irqs, engaging "in-intr-handler"
3781          * event coalescing.
3782          *
3783          * Flush the mailbox to de-assert the IRQ immediately to prevent
3784          * spurious interrupts.  The flush impacts performance but
3785          * excessive spurious interrupts can be worse in some cases.
3786          */
3787         tw32_mailbox_f(MAILBOX_INTERRUPT_0 + TG3_64BIT_REG_LOW, 0x00000001);
3788         if (tg3_irq_sync(tp))
3789                 goto out;
3790         if (netif_rx_schedule_prep(dev, &tp->napi)) {
3791                 prefetch(&tp->rx_rcb[tp->rx_rcb_ptr]);
3792                 /* Update last_tag to mark that this status has been
3793                  * seen. Because interrupt may be shared, we may be
3794                  * racing with tg3_poll(), so only update last_tag
3795                  * if tg3_poll() is not scheduled.
3796                  */
3797                 tp->last_tag = sblk->status_tag;
3798                 __netif_rx_schedule(dev, &tp->napi);
3799         }
3800 out:
3801         return IRQ_RETVAL(handled);
3802 }
3803
3804 /* ISR for interrupt test */
3805 static irqreturn_t tg3_test_isr(int irq, void *dev_id)
3806 {
3807         struct net_device *dev = dev_id;
3808         struct tg3 *tp = netdev_priv(dev);
3809         struct tg3_hw_status *sblk = tp->hw_status;
3810
3811         if ((sblk->status & SD_STATUS_UPDATED) ||
3812             !(tr32(TG3PCI_PCISTATE) & PCISTATE_INT_NOT_ACTIVE)) {
3813                 tg3_disable_ints(tp);
3814                 return IRQ_RETVAL(1);
3815         }
3816         return IRQ_RETVAL(0);
3817 }
3818
3819 static int tg3_init_hw(struct tg3 *, int);
3820 static int tg3_halt(struct tg3 *, int, int);
3821
3822 /* Restart hardware after configuration changes, self-test, etc.
3823  * Invoked with tp->lock held.
3824  */
3825 static int tg3_restart_hw(struct tg3 *tp, int reset_phy)
3826 {
3827         int err;
3828
3829         err = tg3_init_hw(tp, reset_phy);
3830         if (err) {
3831                 printk(KERN_ERR PFX "%s: Failed to re-initialize device, "
3832                        "aborting.\n", tp->dev->name);
3833                 tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
3834                 tg3_full_unlock(tp);
3835                 del_timer_sync(&tp->timer);
3836                 tp->irq_sync = 0;
3837                 napi_enable(&tp->napi);
3838                 dev_close(tp->dev);
3839                 tg3_full_lock(tp, 0);
3840         }
3841         return err;
3842 }
3843
3844 #ifdef CONFIG_NET_POLL_CONTROLLER
3845 static void tg3_poll_controller(struct net_device *dev)
3846 {
3847         struct tg3 *tp = netdev_priv(dev);
3848
3849         tg3_interrupt(tp->pdev->irq, dev);
3850 }
3851 #endif
3852
3853 static void tg3_reset_task(struct work_struct *work)
3854 {
3855         struct tg3 *tp = container_of(work, struct tg3, reset_task);
3856         unsigned int restart_timer;
3857
3858         tg3_full_lock(tp, 0);
3859
3860         if (!netif_running(tp->dev)) {
3861                 tg3_full_unlock(tp);
3862                 return;
3863         }
3864
3865         tg3_full_unlock(tp);
3866
3867         tg3_netif_stop(tp);
3868
3869         tg3_full_lock(tp, 1);
3870
3871         restart_timer = tp->tg3_flags2 & TG3_FLG2_RESTART_TIMER;
3872         tp->tg3_flags2 &= ~TG3_FLG2_RESTART_TIMER;
3873
3874         if (tp->tg3_flags & TG3_FLAG_TX_RECOVERY_PENDING) {
3875                 tp->write32_tx_mbox = tg3_write32_tx_mbox;
3876                 tp->write32_rx_mbox = tg3_write_flush_reg32;
3877                 tp->tg3_flags |= TG3_FLAG_MBOX_WRITE_REORDER;
3878                 tp->tg3_flags &= ~TG3_FLAG_TX_RECOVERY_PENDING;
3879         }
3880
3881         tg3_halt(tp, RESET_KIND_SHUTDOWN, 0);
3882         if (tg3_init_hw(tp, 1))
3883                 goto out;
3884
3885         tg3_netif_start(tp);
3886
3887         if (restart_timer)
3888                 mod_timer(&tp->timer, jiffies + 1);
3889
3890 out:
3891         tg3_full_unlock(tp);
3892 }
3893
3894 static void tg3_dump_short_state(struct tg3 *tp)
3895 {
3896         printk(KERN_ERR PFX "DEBUG: MAC_TX_STATUS[%08x] MAC_RX_STATUS[%08x]\n",
3897                tr32(MAC_TX_STATUS), tr32(MAC_RX_STATUS));
3898         printk(KERN_ERR PFX "DEBUG: RDMAC_STATUS[%08x] WDMAC_STATUS[%08x]\n",
3899                tr32(RDMAC_STATUS), tr32(WDMAC_STATUS));
3900 }
3901
3902 static void tg3_tx_timeout(struct net_device *dev)
3903 {
3904         struct tg3 *tp = netdev_priv(dev);
3905
3906         if (netif_msg_tx_err(tp)) {
3907                 printk(KERN_ERR PFX "%s: transmit timed out, resetting\n",
3908                        dev->name);
3909                 tg3_dump_short_state(tp);
3910         }
3911
3912         schedule_work(&tp->reset_task);
3913 }
3914
3915 /* Test for DMA buffers crossing any 4GB boundaries: 4G, 8G, etc */
3916 static inline int tg3_4g_overflow_test(dma_addr_t mapping, int len)
3917 {
3918         u32 base = (u32) mapping & 0xffffffff;
3919
3920         return ((base > 0xffffdcc0) &&
3921                 (base + len + 8 < base));
3922 }
3923
3924 /* Test for DMA addresses > 40-bit */
3925 static inline int tg3_40bit_overflow_test(struct tg3 *tp, dma_addr_t mapping,
3926                                           int len)
3927 {
3928 #if defined(CONFIG_HIGHMEM) && (BITS_PER_LONG == 64)
3929         if (tp->tg3_flags & TG3_FLAG_40BIT_DMA_BUG)
3930                 return (((u64) mapping + len) > DMA_40BIT_MASK);
3931         return 0;
3932 #else
3933         return 0;
3934 #endif
3935 }
3936
3937 static void tg3_set_txd(struct tg3 *, int, dma_addr_t, int, u32, u32);
3938
3939 /* Workaround 4GB and 40-bit hardware DMA bugs. */
3940 static int tigon3_dma_hwbug_workaround(struct tg3 *tp, struct sk_buff *skb,
3941                                        u32 last_plus_one, u32 *start,
3942                                        u32 base_flags, u32 mss)
3943 {
3944         struct sk_buff *new_skb = skb_copy(skb, GFP_ATOMIC);
3945         dma_addr_t new_addr = 0;
3946         u32 entry = *start;
3947         int i, ret = 0;
3948
3949         if (!new_skb) {
3950                 ret = -1;
3951         } else {
3952                 /* New SKB is guaranteed to be linear. */
3953                 entry = *start;
3954                 new_addr = pci_map_single(tp->pdev, new_skb->data, new_skb->len,
3955                                           PCI_DMA_TODEVICE);
3956                 /* Make sure new skb does not cross any 4G boundaries.
3957                  * Drop the packet if it does.
3958                  */
3959                 if (tg3_4g_overflow_test(new_addr, new_skb->len)) {
3960                         ret = -1;
3961                         dev_kfree_skb(new_skb);
3962                         new_skb = NULL;
3963                 } else {
3964                         tg3_set_txd(tp, entry, new_addr, new_skb->len,
3965                                     base_flags, 1 | (mss << 1));
3966                         *start = NEXT_TX(entry);
3967                 }
3968         }
3969
3970         /* Now clean up the sw ring entries. */
3971         i = 0;
3972         while (entry != last_plus_one) {
3973                 int len;
3974
3975                 if (i == 0)
3976                         len = skb_headlen(skb);
3977                 else
3978                         len = skb_shinfo(skb)->frags[i-1].size;
3979                 pci_unmap_single(tp->pdev,
3980                                  pci_unmap_addr(&tp->tx_buffers[entry], mapping),
3981                                  len, PCI_DMA_TODEVICE);
3982                 if (i == 0) {
3983                         tp->tx_buffers[entry].skb = new_skb;
3984                         pci_unmap_addr_set(&tp->tx_buffers[entry], mapping, new_addr);
3985                 } else {
3986                         tp->tx_buffers[entry].skb = NULL;
3987                 }
3988                 entry = NEXT_TX(entry);
3989                 i++;
3990         }
3991
3992         dev_kfree_skb(skb);
3993
3994         return ret;
3995 }
3996
3997 static void tg3_set_txd(struct tg3 *tp, int entry,
3998                         dma_addr_t mapping, int len, u32 flags,
3999                         u32 mss_and_is_end)
4000 {
4001         struct tg3_tx_buffer_desc *txd = &tp->tx_ring[entry];
4002         int is_end = (mss_and_is_end & 0x1);
4003         u32 mss = (mss_and_is_end >> 1);
4004         u32 vlan_tag = 0;
4005
4006         if (is_end)
4007                 flags |= TXD_FLAG_END;
4008         if (flags & TXD_FLAG_VLAN) {
4009                 vlan_tag = flags >> 16;
4010                 flags &= 0xffff;
4011         }
4012         vlan_tag |= (mss << TXD_MSS_SHIFT);
4013
4014         txd->addr_hi = ((u64) mapping >> 32);
4015         txd->addr_lo = ((u64) mapping & 0xffffffff);
4016         txd->len_flags = (len << TXD_LEN_SHIFT) | flags;
4017         txd->vlan_tag = vlan_tag << TXD_VLAN_TAG_SHIFT;
4018 }
4019
4020 /* hard_start_xmit for devices that don't have any bugs and
4021  * support TG3_FLG2_HW_TSO_2 only.
4022  */
4023 static int tg3_start_xmit(struct sk_buff *skb, struct net_device *dev)
4024 {
4025         struct tg3 *tp = netdev_priv(dev);
4026         dma_addr_t mapping;
4027         u32 len, entry, base_flags, mss;
4028
4029         len = skb_headlen(skb);
4030
4031         /* We are running in BH disabled context with netif_tx_lock
4032          * and TX reclaim runs via tp->napi.poll inside of a software
4033          * interrupt.  Furthermore, IRQ processing runs lockless so we have
4034          * no IRQ context deadlocks to worry about either.  Rejoice!
4035          */
4036         if (unlikely(tg3_tx_avail(tp) <= (skb_shinfo(skb)->nr_frags + 1))) {
4037                 if (!netif_queue_stopped(dev)) {
4038                         netif_stop_queue(dev);
4039
4040                         /* This is a hard error, log it. */
4041                         printk(KERN_ERR PFX "%s: BUG! Tx Ring full when "
4042                                "queue awake!\n", dev->name);
4043                 }
4044                 return NETDEV_TX_BUSY;
4045         }
4046
4047         entry = tp->tx_prod;
4048         base_flags = 0;
4049         mss = 0;
4050         if ((mss = skb_shinfo(skb)->gso_size) != 0) {
4051                 int tcp_opt_len, ip_tcp_len;
4052
4053                 if (skb_header_cloned(skb) &&
4054                     pskb_expand_head(skb, 0, 0, GFP_ATOMIC)) {
4055                         dev_kfree_skb(skb);
4056                         goto out_unlock;
4057                 }
4058
4059                 if (skb_shinfo(skb)->gso_type & SKB_GSO_TCPV6)
4060                         mss |= (skb_headlen(skb) - ETH_HLEN) << 9;
4061                 else {
4062                         struct iphdr *iph = ip_hdr(skb);
4063
4064                         tcp_opt_len = tcp_optlen(skb);
4065                         ip_tcp_len = ip_hdrlen(skb) + sizeof(struct tcphdr);
4066
4067                         iph->check = 0;
4068                         iph->tot_len = htons(mss + ip_tcp_len + tcp_opt_len);
4069                         mss |= (ip_tcp_len + tcp_opt_len) << 9;
4070                 }
4071
4072                 base_flags |= (TXD_FLAG_CPU_PRE_DMA |
4073                                TXD_FLAG_CPU_POST_DMA);
4074
4075                 tcp_hdr(skb)->check = 0;
4076
4077         }
4078         else if (skb->ip_summed == CHECKSUM_PARTIAL)
4079                 base_flags |= TXD_FLAG_TCPUDP_CSUM;
4080 #if TG3_VLAN_TAG_USED
4081         if (tp->vlgrp != NULL && vlan_tx_tag_present(skb))
4082                 base_flags |= (TXD_FLAG_VLAN |
4083                                (vlan_tx_tag_get(skb) << 16));
4084 #endif
4085
4086         /* Queue skb data, a.k.a. the main skb fragment. */
4087         mapping = pci_map_single(tp->pdev, skb->data, len, PCI_DMA_TODEVICE);
4088
4089         tp->tx_buffers[entry].skb = skb;
4090         pci_unmap_addr_set(&tp->tx_buffers[entry], mapping, mapping);
4091
4092         tg3_set_txd(tp, entry, mapping, len, base_flags,
4093                     (skb_shinfo(skb)->nr_frags == 0) | (mss << 1));
4094
4095         entry = NEXT_TX(entry);
4096
4097         /* Now loop through additional data fragments, and queue them. */
4098         if (skb_shinfo(skb)->nr_frags > 0) {
4099                 unsigned int i, last;
4100
4101                 last = skb_shinfo(skb)->nr_frags - 1;
4102                 for (i = 0; i <= last; i++) {
4103                         skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
4104
4105                         len = frag->size;
4106                         mapping = pci_map_page(tp->pdev,
4107                                                frag->page,
4108                                                frag->page_offset,
4109                                                len, PCI_DMA_TODEVICE);
4110
4111                         tp->tx_buffers[entry].skb = NULL;
4112                         pci_unmap_addr_set(&tp->tx_buffers[entry], mapping, mapping);
4113
4114                         tg3_set_txd(tp, entry, mapping, len,
4115                                     base_flags, (i == last) | (mss << 1));
4116
4117                         entry = NEXT_TX(entry);
4118                 }
4119         }
4120
4121         /* Packets are ready, update Tx producer idx local and on card. */
4122         tw32_tx_mbox((MAILBOX_SNDHOST_PROD_IDX_0 + TG3_64BIT_REG_LOW), entry);
4123
4124         tp->tx_prod = entry;
4125         if (unlikely(tg3_tx_avail(tp) <= (MAX_SKB_FRAGS + 1))) {
4126                 netif_stop_queue(dev);
4127                 if (tg3_tx_avail(tp) > TG3_TX_WAKEUP_THRESH(tp))
4128                         netif_wake_queue(tp->dev);
4129         }
4130
4131 out_unlock:
4132         mmiowb();
4133
4134         dev->trans_start = jiffies;
4135
4136         return NETDEV_TX_OK;
4137 }
4138
4139 static int tg3_start_xmit_dma_bug(struct sk_buff *, struct net_device *);
4140
4141 /* Use GSO to workaround a rare TSO bug that may be triggered when the
4142  * TSO header is greater than 80 bytes.
4143  */
4144 static int tg3_tso_bug(struct tg3 *tp, struct sk_buff *skb)
4145 {
4146         struct sk_buff *segs, *nskb;
4147
4148         /* Estimate the number of fragments in the worst case */
4149         if (unlikely(tg3_tx_avail(tp) <= (skb_shinfo(skb)->gso_segs * 3))) {
4150                 netif_stop_queue(tp->dev);
4151                 if (tg3_tx_avail(tp) <= (skb_shinfo(skb)->gso_segs * 3))
4152                         return NETDEV_TX_BUSY;
4153
4154                 netif_wake_queue(tp->dev);
4155         }
4156
4157         segs = skb_gso_segment(skb, tp->dev->features & ~NETIF_F_TSO);
4158         if (unlikely(IS_ERR(segs)))
4159                 goto tg3_tso_bug_end;
4160
4161         do {
4162                 nskb = segs;
4163                 segs = segs->next;
4164                 nskb->next = NULL;
4165                 tg3_start_xmit_dma_bug(nskb, tp->dev);
4166         } while (segs);
4167
4168 tg3_tso_bug_end:
4169         dev_kfree_skb(skb);
4170
4171         return NETDEV_TX_OK;
4172 }
4173
4174 /* hard_start_xmit for devices that have the 4G bug and/or 40-bit bug and
4175  * support TG3_FLG2_HW_TSO_1 or firmware TSO only.
4176  */
4177 static int tg3_start_xmit_dma_bug(struct sk_buff *skb, struct net_device *dev)
4178 {
4179         struct tg3 *tp = netdev_priv(dev);
4180         dma_addr_t mapping;
4181         u32 len, entry, base_flags, mss;
4182         int would_hit_hwbug;
4183
4184         len = skb_headlen(skb);
4185
4186         /* We are running in BH disabled context with netif_tx_lock
4187          * and TX reclaim runs via tp->napi.poll inside of a software
4188          * interrupt.  Furthermore, IRQ processing runs lockless so we have
4189          * no IRQ context deadlocks to worry about either.  Rejoice!
4190          */
4191         if (unlikely(tg3_tx_avail(tp) <= (skb_shinfo(skb)->nr_frags + 1))) {
4192                 if (!netif_queue_stopped(dev)) {
4193                         netif_stop_queue(dev);
4194
4195                         /* This is a hard error, log it. */
4196                         printk(KERN_ERR PFX "%s: BUG! Tx Ring full when "
4197                                "queue awake!\n", dev->name);
4198                 }
4199                 return NETDEV_TX_BUSY;
4200         }
4201
4202         entry = tp->tx_prod;
4203         base_flags = 0;
4204         if (skb->ip_summed == CHECKSUM_PARTIAL)
4205                 base_flags |= TXD_FLAG_TCPUDP_CSUM;
4206         mss = 0;
4207         if ((mss = skb_shinfo(skb)->gso_size) != 0) {
4208                 struct iphdr *iph;
4209                 int tcp_opt_len, ip_tcp_len, hdr_len;
4210
4211                 if (skb_header_cloned(skb) &&
4212                     pskb_expand_head(skb, 0, 0, GFP_ATOMIC)) {
4213                         dev_kfree_skb(skb);
4214                         goto out_unlock;
4215                 }
4216
4217                 tcp_opt_len = tcp_optlen(skb);
4218                 ip_tcp_len = ip_hdrlen(skb) + sizeof(struct tcphdr);
4219
4220                 hdr_len = ip_tcp_len + tcp_opt_len;
4221                 if (unlikely((ETH_HLEN + hdr_len) > 80) &&
4222                              (tp->tg3_flags2 & TG3_FLG2_TSO_BUG))
4223                         return (tg3_tso_bug(tp, skb));
4224
4225                 base_flags |= (TXD_FLAG_CPU_PRE_DMA |
4226                                TXD_FLAG_CPU_POST_DMA);
4227
4228                 iph = ip_hdr(skb);
4229                 iph->check = 0;
4230                 iph->tot_len = htons(mss + hdr_len);
4231                 if (tp->tg3_flags2 & TG3_FLG2_HW_TSO) {
4232                         tcp_hdr(skb)->check = 0;
4233                         base_flags &= ~TXD_FLAG_TCPUDP_CSUM;
4234                 } else
4235                         tcp_hdr(skb)->check = ~csum_tcpudp_magic(iph->saddr,
4236                                                                  iph->daddr, 0,
4237                                                                  IPPROTO_TCP,
4238                                                                  0);
4239
4240                 if ((tp->tg3_flags2 & TG3_FLG2_HW_TSO) ||
4241                     (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705)) {
4242                         if (tcp_opt_len || iph->ihl > 5) {
4243                                 int tsflags;
4244
4245                                 tsflags = (iph->ihl - 5) + (tcp_opt_len >> 2);
4246                                 mss |= (tsflags << 11);
4247                         }
4248                 } else {
4249                         if (tcp_opt_len || iph->ihl > 5) {
4250                                 int tsflags;
4251
4252                                 tsflags = (iph->ihl - 5) + (tcp_opt_len >> 2);
4253                                 base_flags |= tsflags << 12;
4254                         }
4255                 }
4256         }
4257 #if TG3_VLAN_TAG_USED
4258         if (tp->vlgrp != NULL && vlan_tx_tag_present(skb))
4259                 base_flags |= (TXD_FLAG_VLAN |
4260                                (vlan_tx_tag_get(skb) << 16));
4261 #endif
4262
4263         /* Queue skb data, a.k.a. the main skb fragment. */
4264         mapping = pci_map_single(tp->pdev, skb->data, len, PCI_DMA_TODEVICE);
4265
4266         tp->tx_buffers[entry].skb = skb;
4267         pci_unmap_addr_set(&tp->tx_buffers[entry], mapping, mapping);
4268
4269         would_hit_hwbug = 0;
4270
4271         if (tg3_4g_overflow_test(mapping, len))
4272                 would_hit_hwbug = 1;
4273
4274         tg3_set_txd(tp, entry, mapping, len, base_flags,
4275                     (skb_shinfo(skb)->nr_frags == 0) | (mss << 1));
4276
4277         entry = NEXT_TX(entry);
4278
4279         /* Now loop through additional data fragments, and queue them. */
4280         if (skb_shinfo(skb)->nr_frags > 0) {
4281                 unsigned int i, last;
4282
4283                 last = skb_shinfo(skb)->nr_frags - 1;
4284                 for (i = 0; i <= last; i++) {
4285                         skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
4286
4287                         len = frag->size;
4288                         mapping = pci_map_page(tp->pdev,
4289                                                frag->page,
4290                                                frag->page_offset,
4291                                                len, PCI_DMA_TODEVICE);
4292
4293                         tp->tx_buffers[entry].skb = NULL;
4294                         pci_unmap_addr_set(&tp->tx_buffers[entry], mapping, mapping);
4295
4296                         if (tg3_4g_overflow_test(mapping, len))
4297                                 would_hit_hwbug = 1;
4298
4299                         if (tg3_40bit_overflow_test(tp, mapping, len))
4300                                 would_hit_hwbug = 1;
4301
4302                         if (tp->tg3_flags2 & TG3_FLG2_HW_TSO)
4303                                 tg3_set_txd(tp, entry, mapping, len,
4304                                             base_flags, (i == last)|(mss << 1));
4305                         else
4306                                 tg3_set_txd(tp, entry, mapping, len,
4307                                             base_flags, (i == last));
4308
4309                         entry = NEXT_TX(entry);
4310                 }
4311         }
4312
4313         if (would_hit_hwbug) {
4314                 u32 last_plus_one = entry;
4315                 u32 start;
4316
4317                 start = entry - 1 - skb_shinfo(skb)->nr_frags;
4318                 start &= (TG3_TX_RING_SIZE - 1);
4319
4320                 /* If the workaround fails due to memory/mapping
4321                  * failure, silently drop this packet.
4322                  */
4323                 if (tigon3_dma_hwbug_workaround(tp, skb, last_plus_one,
4324                                                 &start, base_flags, mss))
4325                         goto out_unlock;
4326
4327                 entry = start;
4328         }
4329
4330         /* Packets are ready, update Tx producer idx local and on card. */
4331         tw32_tx_mbox((MAILBOX_SNDHOST_PROD_IDX_0 + TG3_64BIT_REG_LOW), entry);
4332
4333         tp->tx_prod = entry;
4334         if (unlikely(tg3_tx_avail(tp) <= (MAX_SKB_FRAGS + 1))) {
4335                 netif_stop_queue(dev);
4336                 if (tg3_tx_avail(tp) > TG3_TX_WAKEUP_THRESH(tp))
4337                         netif_wake_queue(tp->dev);
4338         }
4339
4340 out_unlock:
4341         mmiowb();
4342
4343         dev->trans_start = jiffies;
4344
4345         return NETDEV_TX_OK;
4346 }
4347
4348 static inline void tg3_set_mtu(struct net_device *dev, struct tg3 *tp,
4349                                int new_mtu)
4350 {
4351         dev->mtu = new_mtu;
4352
4353         if (new_mtu > ETH_DATA_LEN) {
4354                 if (tp->tg3_flags2 & TG3_FLG2_5780_CLASS) {
4355                         tp->tg3_flags2 &= ~TG3_FLG2_TSO_CAPABLE;
4356                         ethtool_op_set_tso(dev, 0);
4357                 }
4358                 else
4359                         tp->tg3_flags |= TG3_FLAG_JUMBO_RING_ENABLE;
4360         } else {
4361                 if (tp->tg3_flags2 & TG3_FLG2_5780_CLASS)
4362                         tp->tg3_flags2 |= TG3_FLG2_TSO_CAPABLE;
4363                 tp->tg3_flags &= ~TG3_FLAG_JUMBO_RING_ENABLE;
4364         }
4365 }
4366
4367 static int tg3_change_mtu(struct net_device *dev, int new_mtu)
4368 {
4369         struct tg3 *tp = netdev_priv(dev);
4370         int err;
4371
4372         if (new_mtu < TG3_MIN_MTU || new_mtu > TG3_MAX_MTU(tp))
4373                 return -EINVAL;
4374
4375         if (!netif_running(dev)) {
4376                 /* We'll just catch it later when the
4377                  * device is up'd.
4378                  */
4379                 tg3_set_mtu(dev, tp, new_mtu);
4380                 return 0;
4381         }
4382
4383         tg3_netif_stop(tp);
4384
4385         tg3_full_lock(tp, 1);
4386
4387         tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
4388
4389         tg3_set_mtu(dev, tp, new_mtu);
4390
4391         err = tg3_restart_hw(tp, 0);
4392
4393         if (!err)
4394                 tg3_netif_start(tp);
4395
4396         tg3_full_unlock(tp);
4397
4398         return err;
4399 }
4400
4401 /* Free up pending packets in all rx/tx rings.
4402  *
4403  * The chip has been shut down and the driver detached from
4404  * the networking, so no interrupts or new tx packets will
4405  * end up in the driver.  tp->{tx,}lock is not held and we are not
4406  * in an interrupt context and thus may sleep.
4407  */
4408 static void tg3_free_rings(struct tg3 *tp)
4409 {
4410         struct ring_info *rxp;
4411         int i;
4412
4413         for (i = 0; i < TG3_RX_RING_SIZE; i++) {
4414                 rxp = &tp->rx_std_buffers[i];
4415
4416                 if (rxp->skb == NULL)
4417                         continue;
4418                 pci_unmap_single(tp->pdev,
4419                                  pci_unmap_addr(rxp, mapping),
4420                                  tp->rx_pkt_buf_sz - tp->rx_offset,
4421                                  PCI_DMA_FROMDEVICE);
4422                 dev_kfree_skb_any(rxp->skb);
4423                 rxp->skb = NULL;
4424         }
4425
4426         for (i = 0; i < TG3_RX_JUMBO_RING_SIZE; i++) {
4427                 rxp = &tp->rx_jumbo_buffers[i];
4428
4429                 if (rxp->skb == NULL)
4430                         continue;
4431                 pci_unmap_single(tp->pdev,
4432                                  pci_unmap_addr(rxp, mapping),
4433                                  RX_JUMBO_PKT_BUF_SZ - tp->rx_offset,
4434                                  PCI_DMA_FROMDEVICE);
4435                 dev_kfree_skb_any(rxp->skb);
4436                 rxp->skb = NULL;
4437         }
4438
4439         for (i = 0; i < TG3_TX_RING_SIZE; ) {
4440                 struct tx_ring_info *txp;
4441                 struct sk_buff *skb;
4442                 int j;
4443
4444                 txp = &tp->tx_buffers[i];
4445                 skb = txp->skb;
4446
4447                 if (skb == NULL) {
4448                         i++;
4449                         continue;
4450                 }
4451
4452                 pci_unmap_single(tp->pdev,
4453                                  pci_unmap_addr(txp, mapping),
4454                                  skb_headlen(skb),
4455                                  PCI_DMA_TODEVICE);
4456                 txp->skb = NULL;
4457
4458                 i++;
4459
4460                 for (j = 0; j < skb_shinfo(skb)->nr_frags; j++) {
4461                         txp = &tp->tx_buffers[i & (TG3_TX_RING_SIZE - 1)];
4462                         pci_unmap_page(tp->pdev,
4463                                        pci_unmap_addr(txp, mapping),
4464                                        skb_shinfo(skb)->frags[j].size,
4465                                        PCI_DMA_TODEVICE);
4466                         i++;
4467                 }
4468
4469                 dev_kfree_skb_any(skb);
4470         }
4471 }
4472
4473 /* Initialize tx/rx rings for packet processing.
4474  *
4475  * The chip has been shut down and the driver detached from
4476  * the networking, so no interrupts or new tx packets will
4477  * end up in the driver.  tp->{tx,}lock are held and thus
4478  * we may not sleep.
4479  */
4480 static int tg3_init_rings(struct tg3 *tp)
4481 {
4482         u32 i;
4483
4484         /* Free up all the SKBs. */
4485         tg3_free_rings(tp);
4486
4487         /* Zero out all descriptors. */
4488         memset(tp->rx_std, 0, TG3_RX_RING_BYTES);
4489         memset(tp->rx_jumbo, 0, TG3_RX_JUMBO_RING_BYTES);
4490         memset(tp->rx_rcb, 0, TG3_RX_RCB_RING_BYTES(tp));
4491         memset(tp->tx_ring, 0, TG3_TX_RING_BYTES);
4492
4493         tp->rx_pkt_buf_sz = RX_PKT_BUF_SZ;
4494         if ((tp->tg3_flags2 & TG3_FLG2_5780_CLASS) &&
4495             (tp->dev->mtu > ETH_DATA_LEN))
4496                 tp->rx_pkt_buf_sz = RX_JUMBO_PKT_BUF_SZ;
4497
4498         /* Initialize invariants of the rings, we only set this
4499          * stuff once.  This works because the card does not
4500          * write into the rx buffer posting rings.
4501          */
4502         for (i = 0; i < TG3_RX_RING_SIZE; i++) {
4503                 struct tg3_rx_buffer_desc *rxd;
4504
4505                 rxd = &tp->rx_std[i];
4506                 rxd->idx_len = (tp->rx_pkt_buf_sz - tp->rx_offset - 64)
4507                         << RXD_LEN_SHIFT;
4508                 rxd->type_flags = (RXD_FLAG_END << RXD_FLAGS_SHIFT);
4509                 rxd->opaque = (RXD_OPAQUE_RING_STD |
4510                                (i << RXD_OPAQUE_INDEX_SHIFT));
4511         }
4512
4513         if (tp->tg3_flags & TG3_FLAG_JUMBO_RING_ENABLE) {
4514                 for (i = 0; i < TG3_RX_JUMBO_RING_SIZE; i++) {
4515                         struct tg3_rx_buffer_desc *rxd;
4516
4517                         rxd = &tp->rx_jumbo[i];
4518                         rxd->idx_len = (RX_JUMBO_PKT_BUF_SZ - tp->rx_offset - 64)
4519                                 << RXD_LEN_SHIFT;
4520                         rxd->type_flags = (RXD_FLAG_END << RXD_FLAGS_SHIFT) |
4521                                 RXD_FLAG_JUMBO;
4522                         rxd->opaque = (RXD_OPAQUE_RING_JUMBO |
4523                                (i << RXD_OPAQUE_INDEX_SHIFT));
4524                 }
4525         }
4526
4527         /* Now allocate fresh SKBs for each rx ring. */
4528         for (i = 0; i < tp->rx_pending; i++) {
4529                 if (tg3_alloc_rx_skb(tp, RXD_OPAQUE_RING_STD, -1, i) < 0) {
4530                         printk(KERN_WARNING PFX
4531                                "%s: Using a smaller RX standard ring, "
4532                                "only %d out of %d buffers were allocated "
4533                                "successfully.\n",
4534                                tp->dev->name, i, tp->rx_pending);
4535                         if (i == 0)
4536                                 return -ENOMEM;
4537                         tp->rx_pending = i;
4538                         break;
4539                 }
4540         }
4541
4542         if (tp->tg3_flags & TG3_FLAG_JUMBO_RING_ENABLE) {
4543                 for (i = 0; i < tp->rx_jumbo_pending; i++) {
4544                         if (tg3_alloc_rx_skb(tp, RXD_OPAQUE_RING_JUMBO,
4545                                              -1, i) < 0) {
4546                                 printk(KERN_WARNING PFX
4547                                        "%s: Using a smaller RX jumbo ring, "
4548                                        "only %d out of %d buffers were "
4549                                        "allocated successfully.\n",
4550                                        tp->dev->name, i, tp->rx_jumbo_pending);
4551                                 if (i == 0) {
4552                                         tg3_free_rings(tp);
4553                                         return -ENOMEM;
4554                                 }
4555                                 tp->rx_jumbo_pending = i;
4556                                 break;
4557                         }
4558                 }
4559         }
4560         return 0;
4561 }
4562
4563 /*
4564  * Must not be invoked with interrupt sources disabled and
4565  * the hardware shutdown down.
4566  */
4567 static void tg3_free_consistent(struct tg3 *tp)
4568 {
4569         kfree(tp->rx_std_buffers);
4570         tp->rx_std_buffers = NULL;
4571         if (tp->rx_std) {
4572                 pci_free_consistent(tp->pdev, TG3_RX_RING_BYTES,
4573                                     tp->rx_std, tp->rx_std_mapping);
4574                 tp->rx_std = NULL;
4575         }
4576         if (tp->rx_jumbo) {
4577                 pci_free_consistent(tp->pdev, TG3_RX_JUMBO_RING_BYTES,
4578                                     tp->rx_jumbo, tp->rx_jumbo_mapping);
4579                 tp->rx_jumbo = NULL;
4580         }
4581         if (tp->rx_rcb) {
4582                 pci_free_consistent(tp->pdev, TG3_RX_RCB_RING_BYTES(tp),
4583                                     tp->rx_rcb, tp->rx_rcb_mapping);
4584                 tp->rx_rcb = NULL;
4585         }
4586         if (tp->tx_ring) {
4587                 pci_free_consistent(tp->pdev, TG3_TX_RING_BYTES,
4588                         tp->tx_ring, tp->tx_desc_mapping);
4589                 tp->tx_ring = NULL;
4590         }
4591         if (tp->hw_status) {
4592                 pci_free_consistent(tp->pdev, TG3_HW_STATUS_SIZE,
4593                                     tp->hw_status, tp->status_mapping);
4594                 tp->hw_status = NULL;
4595         }
4596         if (tp->hw_stats) {
4597                 pci_free_consistent(tp->pdev, sizeof(struct tg3_hw_stats),
4598                                     tp->hw_stats, tp->stats_mapping);
4599                 tp->hw_stats = NULL;
4600         }
4601 }
4602
4603 /*
4604  * Must not be invoked with interrupt sources disabled and
4605  * the hardware shutdown down.  Can sleep.
4606  */
4607 static int tg3_alloc_consistent(struct tg3 *tp)
4608 {
4609         tp->rx_std_buffers = kzalloc((sizeof(struct ring_info) *
4610                                       (TG3_RX_RING_SIZE +
4611                                        TG3_RX_JUMBO_RING_SIZE)) +
4612                                      (sizeof(struct tx_ring_info) *
4613                                       TG3_TX_RING_SIZE),
4614                                      GFP_KERNEL);
4615         if (!tp->rx_std_buffers)
4616                 return -ENOMEM;
4617
4618         tp->rx_jumbo_buffers = &tp->rx_std_buffers[TG3_RX_RING_SIZE];
4619         tp->tx_buffers = (struct tx_ring_info *)
4620                 &tp->rx_jumbo_buffers[TG3_RX_JUMBO_RING_SIZE];
4621
4622         tp->rx_std = pci_alloc_consistent(tp->pdev, TG3_RX_RING_BYTES,
4623                                           &tp->rx_std_mapping);
4624         if (!tp->rx_std)
4625                 goto err_out;
4626
4627         tp->rx_jumbo = pci_alloc_consistent(tp->pdev, TG3_RX_JUMBO_RING_BYTES,
4628                                             &tp->rx_jumbo_mapping);
4629
4630         if (!tp->rx_jumbo)
4631                 goto err_out;
4632
4633         tp->rx_rcb = pci_alloc_consistent(tp->pdev, TG3_RX_RCB_RING_BYTES(tp),
4634                                           &tp->rx_rcb_mapping);
4635         if (!tp->rx_rcb)
4636                 goto err_out;
4637
4638         tp->tx_ring = pci_alloc_consistent(tp->pdev, TG3_TX_RING_BYTES,
4639                                            &tp->tx_desc_mapping);
4640         if (!tp->tx_ring)
4641                 goto err_out;
4642
4643         tp->hw_status = pci_alloc_consistent(tp->pdev,
4644                                              TG3_HW_STATUS_SIZE,
4645                                              &tp->status_mapping);
4646         if (!tp->hw_status)
4647                 goto err_out;
4648
4649         tp->hw_stats = pci_alloc_consistent(tp->pdev,
4650                                             sizeof(struct tg3_hw_stats),
4651                                             &tp->stats_mapping);
4652         if (!tp->hw_stats)
4653                 goto err_out;
4654
4655         memset(tp->hw_status, 0, TG3_HW_STATUS_SIZE);
4656         memset(tp->hw_stats, 0, sizeof(struct tg3_hw_stats));
4657
4658         return 0;
4659
4660 err_out:
4661         tg3_free_consistent(tp);
4662         return -ENOMEM;
4663 }
4664
4665 #define MAX_WAIT_CNT 1000
4666
4667 /* To stop a block, clear the enable bit and poll till it
4668  * clears.  tp->lock is held.
4669  */
4670 static int tg3_stop_block(struct tg3 *tp, unsigned long ofs, u32 enable_bit, int silent)
4671 {
4672         unsigned int i;
4673         u32 val;
4674
4675         if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS) {
4676                 switch (ofs) {
4677                 case RCVLSC_MODE:
4678                 case DMAC_MODE:
4679                 case MBFREE_MODE:
4680                 case BUFMGR_MODE:
4681                 case MEMARB_MODE:
4682                         /* We can't enable/disable these bits of the
4683                          * 5705/5750, just say success.
4684                          */
4685                         return 0;
4686
4687                 default:
4688                         break;
4689                 };
4690         }
4691
4692         val = tr32(ofs);
4693         val &= ~enable_bit;
4694         tw32_f(ofs, val);
4695
4696         for (i = 0; i < MAX_WAIT_CNT; i++) {
4697                 udelay(100);
4698                 val = tr32(ofs);
4699                 if ((val & enable_bit) == 0)
4700                         break;
4701         }
4702
4703         if (i == MAX_WAIT_CNT && !silent) {
4704                 printk(KERN_ERR PFX "tg3_stop_block timed out, "
4705                        "ofs=%lx enable_bit=%x\n",
4706                        ofs, enable_bit);
4707                 return -ENODEV;
4708         }
4709
4710         return 0;
4711 }
4712
4713 /* tp->lock is held. */
4714 static int tg3_abort_hw(struct tg3 *tp, int silent)
4715 {
4716         int i, err;
4717
4718         tg3_disable_ints(tp);
4719
4720         tp->rx_mode &= ~RX_MODE_ENABLE;
4721         tw32_f(MAC_RX_MODE, tp->rx_mode);
4722         udelay(10);
4723
4724         err  = tg3_stop_block(tp, RCVBDI_MODE, RCVBDI_MODE_ENABLE, silent);
4725         err |= tg3_stop_block(tp, RCVLPC_MODE, RCVLPC_MODE_ENABLE, silent);
4726         err |= tg3_stop_block(tp, RCVLSC_MODE, RCVLSC_MODE_ENABLE, silent);
4727         err |= tg3_stop_block(tp, RCVDBDI_MODE, RCVDBDI_MODE_ENABLE, silent);
4728         err |= tg3_stop_block(tp, RCVDCC_MODE, RCVDCC_MODE_ENABLE, silent);
4729         err |= tg3_stop_block(tp, RCVCC_MODE, RCVCC_MODE_ENABLE, silent);
4730
4731         err |= tg3_stop_block(tp, SNDBDS_MODE, SNDBDS_MODE_ENABLE, silent);
4732         err |= tg3_stop_block(tp, SNDBDI_MODE, SNDBDI_MODE_ENABLE, silent);
4733         err |= tg3_stop_block(tp, SNDDATAI_MODE, SNDDATAI_MODE_ENABLE, silent);
4734         err |= tg3_stop_block(tp, RDMAC_MODE, RDMAC_MODE_ENABLE, silent);
4735         err |= tg3_stop_block(tp, SNDDATAC_MODE, SNDDATAC_MODE_ENABLE, silent);
4736         err |= tg3_stop_block(tp, DMAC_MODE, DMAC_MODE_ENABLE, silent);
4737         err |= tg3_stop_block(tp, SNDBDC_MODE, SNDBDC_MODE_ENABLE, silent);
4738
4739         tp->mac_mode &= ~MAC_MODE_TDE_ENABLE;
4740         tw32_f(MAC_MODE, tp->mac_mode);
4741         udelay(40);
4742
4743         tp->tx_mode &= ~TX_MODE_ENABLE;
4744         tw32_f(MAC_TX_MODE, tp->tx_mode);
4745
4746         for (i = 0; i < MAX_WAIT_CNT; i++) {
4747                 udelay(100);
4748                 if (!(tr32(MAC_TX_MODE) & TX_MODE_ENABLE))
4749                         break;
4750         }
4751         if (i >= MAX_WAIT_CNT) {
4752                 printk(KERN_ERR PFX "tg3_abort_hw timed out for %s, "
4753                        "TX_MODE_ENABLE will not clear MAC_TX_MODE=%08x\n",
4754                        tp->dev->name, tr32(MAC_TX_MODE));
4755                 err |= -ENODEV;
4756         }
4757
4758         err |= tg3_stop_block(tp, HOSTCC_MODE, HOSTCC_MODE_ENABLE, silent);
4759         err |= tg3_stop_block(tp, WDMAC_MODE, WDMAC_MODE_ENABLE, silent);
4760         err |= tg3_stop_block(tp, MBFREE_MODE, MBFREE_MODE_ENABLE, silent);
4761
4762         tw32(FTQ_RESET, 0xffffffff);
4763         tw32(FTQ_RESET, 0x00000000);
4764
4765         err |= tg3_stop_block(tp, BUFMGR_MODE, BUFMGR_MODE_ENABLE, silent);
4766         err |= tg3_stop_block(tp, MEMARB_MODE, MEMARB_MODE_ENABLE, silent);
4767
4768         if (tp->hw_status)
4769                 memset(tp->hw_status, 0, TG3_HW_STATUS_SIZE);
4770         if (tp->hw_stats)
4771                 memset(tp->hw_stats, 0, sizeof(struct tg3_hw_stats));
4772
4773         return err;
4774 }
4775
4776 /* tp->lock is held. */
4777 static int tg3_nvram_lock(struct tg3 *tp)
4778 {
4779         if (tp->tg3_flags & TG3_FLAG_NVRAM) {
4780                 int i;
4781
4782                 if (tp->nvram_lock_cnt == 0) {
4783                         tw32(NVRAM_SWARB, SWARB_REQ_SET1);
4784                         for (i = 0; i < 8000; i++) {
4785                                 if (tr32(NVRAM_SWARB) & SWARB_GNT1)
4786                                         break;
4787                                 udelay(20);
4788                         }
4789                         if (i == 8000) {
4790                                 tw32(NVRAM_SWARB, SWARB_REQ_CLR1);
4791                                 return -ENODEV;
4792                         }
4793                 }
4794                 tp->nvram_lock_cnt++;
4795         }
4796         return 0;
4797 }
4798
4799 /* tp->lock is held. */
4800 static void tg3_nvram_unlock(struct tg3 *tp)
4801 {
4802         if (tp->tg3_flags & TG3_FLAG_NVRAM) {
4803                 if (tp->nvram_lock_cnt > 0)
4804                         tp->nvram_lock_cnt--;
4805                 if (tp->nvram_lock_cnt == 0)
4806                         tw32_f(NVRAM_SWARB, SWARB_REQ_CLR1);
4807         }
4808 }
4809
4810 /* tp->lock is held. */
4811 static void tg3_enable_nvram_access(struct tg3 *tp)
4812 {
4813         if ((tp->tg3_flags2 & TG3_FLG2_5750_PLUS) &&
4814             !(tp->tg3_flags2 & TG3_FLG2_PROTECTED_NVRAM)) {
4815                 u32 nvaccess = tr32(NVRAM_ACCESS);
4816
4817                 tw32(NVRAM_ACCESS, nvaccess | ACCESS_ENABLE);
4818         }
4819 }
4820
4821 /* tp->lock is held. */
4822 static void tg3_disable_nvram_access(struct tg3 *tp)
4823 {
4824         if ((tp->tg3_flags2 & TG3_FLG2_5750_PLUS) &&
4825             !(tp->tg3_flags2 & TG3_FLG2_PROTECTED_NVRAM)) {
4826                 u32 nvaccess = tr32(NVRAM_ACCESS);
4827
4828                 tw32(NVRAM_ACCESS, nvaccess & ~ACCESS_ENABLE);
4829         }
4830 }
4831
4832 static void tg3_ape_send_event(struct tg3 *tp, u32 event)
4833 {
4834         int i;
4835         u32 apedata;
4836
4837         apedata = tg3_ape_read32(tp, TG3_APE_SEG_SIG);
4838         if (apedata != APE_SEG_SIG_MAGIC)
4839                 return;
4840
4841         apedata = tg3_ape_read32(tp, TG3_APE_FW_STATUS);
4842         if (apedata != APE_FW_STATUS_READY)
4843                 return;
4844
4845         /* Wait for up to 1 millisecond for APE to service previous event. */
4846         for (i = 0; i < 10; i++) {
4847                 if (tg3_ape_lock(tp, TG3_APE_LOCK_MEM))
4848                         return;
4849
4850                 apedata = tg3_ape_read32(tp, TG3_APE_EVENT_STATUS);
4851
4852                 if (!(apedata & APE_EVENT_STATUS_EVENT_PENDING))
4853                         tg3_ape_write32(tp, TG3_APE_EVENT_STATUS,
4854                                         event | APE_EVENT_STATUS_EVENT_PENDING);
4855
4856                 tg3_ape_unlock(tp, TG3_APE_LOCK_MEM);
4857
4858                 if (!(apedata & APE_EVENT_STATUS_EVENT_PENDING))
4859                         break;
4860
4861                 udelay(100);
4862         }
4863
4864         if (!(apedata & APE_EVENT_STATUS_EVENT_PENDING))
4865                 tg3_ape_write32(tp, TG3_APE_EVENT, APE_EVENT_1);
4866 }
4867
4868 static void tg3_ape_driver_state_change(struct tg3 *tp, int kind)
4869 {
4870         u32 event;
4871         u32 apedata;
4872
4873         if (!(tp->tg3_flags3 & TG3_FLG3_ENABLE_APE))
4874                 return;
4875
4876         switch (kind) {
4877                 case RESET_KIND_INIT:
4878                         tg3_ape_write32(tp, TG3_APE_HOST_SEG_SIG,
4879                                         APE_HOST_SEG_SIG_MAGIC);
4880                         tg3_ape_write32(tp, TG3_APE_HOST_SEG_LEN,
4881                                         APE_HOST_SEG_LEN_MAGIC);
4882                         apedata = tg3_ape_read32(tp, TG3_APE_HOST_INIT_COUNT);
4883                         tg3_ape_write32(tp, TG3_APE_HOST_INIT_COUNT, ++apedata);
4884                         tg3_ape_write32(tp, TG3_APE_HOST_DRIVER_ID,
4885                                         APE_HOST_DRIVER_ID_MAGIC);
4886                         tg3_ape_write32(tp, TG3_APE_HOST_BEHAVIOR,
4887                                         APE_HOST_BEHAV_NO_PHYLOCK);
4888
4889                         event = APE_EVENT_STATUS_STATE_START;
4890                         break;
4891                 case RESET_KIND_SHUTDOWN:
4892                         event = APE_EVENT_STATUS_STATE_UNLOAD;
4893                         break;
4894                 case RESET_KIND_SUSPEND:
4895                         event = APE_EVENT_STATUS_STATE_SUSPEND;
4896                         break;
4897                 default:
4898                         return;
4899         }
4900
4901         event |= APE_EVENT_STATUS_DRIVER_EVNT | APE_EVENT_STATUS_STATE_CHNGE;
4902
4903         tg3_ape_send_event(tp, event);
4904 }
4905
4906 /* tp->lock is held. */
4907 static void tg3_write_sig_pre_reset(struct tg3 *tp, int kind)
4908 {
4909         tg3_write_mem(tp, NIC_SRAM_FIRMWARE_MBOX,
4910                       NIC_SRAM_FIRMWARE_MBOX_MAGIC1);
4911
4912         if (tp->tg3_flags2 & TG3_FLG2_ASF_NEW_HANDSHAKE) {
4913                 switch (kind) {
4914                 case RESET_KIND_INIT:
4915                         tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
4916                                       DRV_STATE_START);
4917                         break;
4918
4919                 case RESET_KIND_SHUTDOWN:
4920                         tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
4921                                       DRV_STATE_UNLOAD);
4922                         break;
4923
4924                 case RESET_KIND_SUSPEND:
4925                         tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
4926                                       DRV_STATE_SUSPEND);
4927                         break;
4928
4929                 default:
4930                         break;
4931                 };
4932         }
4933
4934         if (kind == RESET_KIND_INIT ||
4935             kind == RESET_KIND_SUSPEND)
4936                 tg3_ape_driver_state_change(tp, kind);
4937 }
4938
4939 /* tp->lock is held. */
4940 static void tg3_write_sig_post_reset(struct tg3 *tp, int kind)
4941 {
4942         if (tp->tg3_flags2 & TG3_FLG2_ASF_NEW_HANDSHAKE) {
4943                 switch (kind) {
4944                 case RESET_KIND_INIT:
4945                         tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
4946                                       DRV_STATE_START_DONE);
4947                         break;
4948
4949                 case RESET_KIND_SHUTDOWN:
4950                         tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
4951                                       DRV_STATE_UNLOAD_DONE);
4952                         break;
4953
4954                 default:
4955                         break;
4956                 };
4957         }
4958
4959         if (kind == RESET_KIND_SHUTDOWN)
4960                 tg3_ape_driver_state_change(tp, kind);
4961 }
4962
4963 /* tp->lock is held. */
4964 static void tg3_write_sig_legacy(struct tg3 *tp, int kind)
4965 {
4966         if (tp->tg3_flags & TG3_FLAG_ENABLE_ASF) {
4967                 switch (kind) {
4968                 case RESET_KIND_INIT:
4969                         tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
4970                                       DRV_STATE_START);
4971                         break;
4972
4973                 case RESET_KIND_SHUTDOWN:
4974                         tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
4975                                       DRV_STATE_UNLOAD);
4976                         break;
4977
4978                 case RESET_KIND_SUSPEND:
4979                         tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
4980                                       DRV_STATE_SUSPEND);
4981                         break;
4982
4983                 default:
4984                         break;
4985                 };
4986         }
4987 }
4988
4989 static int tg3_poll_fw(struct tg3 *tp)
4990 {
4991         int i;
4992         u32 val;
4993
4994         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
4995                 /* Wait up to 20ms for init done. */
4996                 for (i = 0; i < 200; i++) {
4997                         if (tr32(VCPU_STATUS) & VCPU_STATUS_INIT_DONE)
4998                                 return 0;
4999                         udelay(100);
5000                 }
5001                 return -ENODEV;
5002         }
5003
5004         /* Wait for firmware initialization to complete. */
5005         for (i = 0; i < 100000; i++) {
5006                 tg3_read_mem(tp, NIC_SRAM_FIRMWARE_MBOX, &val);
5007                 if (val == ~NIC_SRAM_FIRMWARE_MBOX_MAGIC1)
5008                         break;
5009                 udelay(10);
5010         }
5011
5012         /* Chip might not be fitted with firmware.  Some Sun onboard
5013          * parts are configured like that.  So don't signal the timeout
5014          * of the above loop as an error, but do report the lack of
5015          * running firmware once.
5016          */
5017         if (i >= 100000 &&
5018             !(tp->tg3_flags2 & TG3_FLG2_NO_FWARE_REPORTED)) {
5019                 tp->tg3_flags2 |= TG3_FLG2_NO_FWARE_REPORTED;
5020
5021                 printk(KERN_INFO PFX "%s: No firmware running.\n",
5022                        tp->dev->name);
5023         }
5024
5025         return 0;
5026 }
5027
5028 /* Save PCI command register before chip reset */
5029 static void tg3_save_pci_state(struct tg3 *tp)
5030 {
5031         u32 val;
5032
5033         pci_read_config_dword(tp->pdev, TG3PCI_COMMAND, &val);
5034         tp->pci_cmd = val;
5035 }
5036
5037 /* Restore PCI state after chip reset */
5038 static void tg3_restore_pci_state(struct tg3 *tp)
5039 {
5040         u32 val;
5041
5042         /* Re-enable indirect register accesses. */
5043         pci_write_config_dword(tp->pdev, TG3PCI_MISC_HOST_CTRL,
5044                                tp->misc_host_ctrl);
5045
5046         /* Set MAX PCI retry to zero. */
5047         val = (PCISTATE_ROM_ENABLE | PCISTATE_ROM_RETRY_ENABLE);
5048         if (tp->pci_chip_rev_id == CHIPREV_ID_5704_A0 &&
5049             (tp->tg3_flags & TG3_FLAG_PCIX_MODE))
5050                 val |= PCISTATE_RETRY_SAME_DMA;
5051         /* Allow reads and writes to the APE register and memory space. */
5052         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)
5053                 val |= PCISTATE_ALLOW_APE_CTLSPC_WR |
5054                        PCISTATE_ALLOW_APE_SHMEM_WR;
5055         pci_write_config_dword(tp->pdev, TG3PCI_PCISTATE, val);
5056
5057         pci_write_config_dword(tp->pdev, TG3PCI_COMMAND, tp->pci_cmd);
5058
5059         if (!(tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS)) {
5060                 pci_write_config_byte(tp->pdev, PCI_CACHE_LINE_SIZE,
5061                                       tp->pci_cacheline_sz);
5062                 pci_write_config_byte(tp->pdev, PCI_LATENCY_TIMER,
5063                                       tp->pci_lat_timer);
5064         }
5065         /* Make sure PCI-X relaxed ordering bit is clear. */
5066         if (tp->pcix_cap) {
5067                 u16 pcix_cmd;
5068
5069                 pci_read_config_word(tp->pdev, tp->pcix_cap + PCI_X_CMD,
5070                                      &pcix_cmd);
5071                 pcix_cmd &= ~PCI_X_CMD_ERO;
5072                 pci_write_config_word(tp->pdev, tp->pcix_cap + PCI_X_CMD,
5073                                       pcix_cmd);
5074         }
5075
5076         if (tp->tg3_flags2 & TG3_FLG2_5780_CLASS) {
5077
5078                 /* Chip reset on 5780 will reset MSI enable bit,
5079                  * so need to restore it.
5080                  */
5081                 if (tp->tg3_flags2 & TG3_FLG2_USING_MSI) {
5082                         u16 ctrl;
5083
5084                         pci_read_config_word(tp->pdev,
5085                                              tp->msi_cap + PCI_MSI_FLAGS,
5086                                              &ctrl);
5087                         pci_write_config_word(tp->pdev,
5088                                               tp->msi_cap + PCI_MSI_FLAGS,
5089                                               ctrl | PCI_MSI_FLAGS_ENABLE);
5090                         val = tr32(MSGINT_MODE);
5091                         tw32(MSGINT_MODE, val | MSGINT_MODE_ENABLE);
5092                 }
5093         }
5094 }
5095
5096 static void tg3_stop_fw(struct tg3 *);
5097
5098 /* tp->lock is held. */
5099 static int tg3_chip_reset(struct tg3 *tp)
5100 {
5101         u32 val;
5102         void (*write_op)(struct tg3 *, u32, u32);
5103         int err;
5104
5105         tg3_nvram_lock(tp);
5106
5107         /* No matching tg3_nvram_unlock() after this because
5108          * chip reset below will undo the nvram lock.
5109          */
5110         tp->nvram_lock_cnt = 0;
5111
5112         /* GRC_MISC_CFG core clock reset will clear the memory
5113          * enable bit in PCI register 4 and the MSI enable bit
5114          * on some chips, so we save relevant registers here.
5115          */
5116         tg3_save_pci_state(tp);
5117
5118         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5752 ||
5119             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5755 ||
5120             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5787 ||
5121             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 ||
5122             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761)
5123                 tw32(GRC_FASTBOOT_PC, 0);
5124
5125         /*
5126          * We must avoid the readl() that normally takes place.
5127          * It locks machines, causes machine checks, and other
5128          * fun things.  So, temporarily disable the 5701
5129          * hardware workaround, while we do the reset.
5130          */
5131         write_op = tp->write32;
5132         if (write_op == tg3_write_flush_reg32)
5133                 tp->write32 = tg3_write32;
5134
5135         /* Prevent the irq handler from reading or writing PCI registers
5136          * during chip reset when the memory enable bit in the PCI command
5137          * register may be cleared.  The chip does not generate interrupt
5138          * at this time, but the irq handler may still be called due to irq
5139          * sharing or irqpoll.
5140          */
5141         tp->tg3_flags |= TG3_FLAG_CHIP_RESETTING;
5142         if (tp->hw_status) {
5143                 tp->hw_status->status = 0;
5144                 tp->hw_status->status_tag = 0;
5145         }
5146         tp->last_tag = 0;
5147         smp_mb();
5148         synchronize_irq(tp->pdev->irq);
5149
5150         /* do the reset */
5151         val = GRC_MISC_CFG_CORECLK_RESET;
5152
5153         if (tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS) {
5154                 if (tr32(0x7e2c) == 0x60) {
5155                         tw32(0x7e2c, 0x20);
5156                 }
5157                 if (tp->pci_chip_rev_id != CHIPREV_ID_5750_A0) {
5158                         tw32(GRC_MISC_CFG, (1 << 29));
5159                         val |= (1 << 29);
5160                 }
5161         }
5162
5163         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
5164                 tw32(VCPU_STATUS, tr32(VCPU_STATUS) | VCPU_STATUS_DRV_RESET);
5165                 tw32(GRC_VCPU_EXT_CTRL,
5166                      tr32(GRC_VCPU_EXT_CTRL) & ~GRC_VCPU_EXT_CTRL_HALT_CPU);
5167         }
5168
5169         if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS)
5170                 val |= GRC_MISC_CFG_KEEP_GPHY_POWER;
5171         tw32(GRC_MISC_CFG, val);
5172
5173         /* restore 5701 hardware bug workaround write method */
5174         tp->write32 = write_op;
5175
5176         /* Unfortunately, we have to delay before the PCI read back.
5177          * Some 575X chips even will not respond to a PCI cfg access
5178          * when the reset command is given to the chip.
5179          *
5180          * How do these hardware designers expect things to work
5181          * properly if the PCI write is posted for a long period
5182          * of time?  It is always necessary to have some method by
5183          * which a register read back can occur to push the write
5184          * out which does the reset.
5185          *
5186          * For most tg3 variants the trick below was working.
5187          * Ho hum...
5188          */
5189         udelay(120);
5190
5191         /* Flush PCI posted writes.  The normal MMIO registers
5192          * are inaccessible at this time so this is the only
5193          * way to make this reliably (actually, this is no longer
5194          * the case, see above).  I tried to use indirect
5195          * register read/write but this upset some 5701 variants.
5196          */
5197         pci_read_config_dword(tp->pdev, PCI_COMMAND, &val);
5198
5199         udelay(120);
5200
5201         if (tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS) {
5202                 if (tp->pci_chip_rev_id == CHIPREV_ID_5750_A0) {
5203                         int i;
5204                         u32 cfg_val;
5205
5206                         /* Wait for link training to complete.  */
5207                         for (i = 0; i < 5000; i++)
5208                                 udelay(100);
5209
5210                         pci_read_config_dword(tp->pdev, 0xc4, &cfg_val);
5211                         pci_write_config_dword(tp->pdev, 0xc4,
5212                                                cfg_val | (1 << 15));
5213                 }
5214                 /* Set PCIE max payload size and clear error status.  */
5215                 pci_write_config_dword(tp->pdev, 0xd8, 0xf5000);
5216         }
5217
5218         tg3_restore_pci_state(tp);
5219
5220         tp->tg3_flags &= ~TG3_FLAG_CHIP_RESETTING;
5221
5222         val = 0;
5223         if (tp->tg3_flags2 & TG3_FLG2_5780_CLASS)
5224                 val = tr32(MEMARB_MODE);
5225         tw32(MEMARB_MODE, val | MEMARB_MODE_ENABLE);
5226
5227         if (tp->pci_chip_rev_id == CHIPREV_ID_5750_A3) {
5228                 tg3_stop_fw(tp);
5229                 tw32(0x5000, 0x400);
5230         }
5231
5232         tw32(GRC_MODE, tp->grc_mode);
5233
5234         if (tp->pci_chip_rev_id == CHIPREV_ID_5705_A0) {
5235                 val = tr32(0xc4);
5236
5237                 tw32(0xc4, val | (1 << 15));
5238         }
5239
5240         if ((tp->nic_sram_data_cfg & NIC_SRAM_DATA_CFG_MINI_PCI) != 0 &&
5241             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705) {
5242                 tp->pci_clock_ctrl |= CLOCK_CTRL_CLKRUN_OENABLE;
5243                 if (tp->pci_chip_rev_id == CHIPREV_ID_5705_A0)
5244                         tp->pci_clock_ctrl |= CLOCK_CTRL_FORCE_CLKRUN;
5245                 tw32(TG3PCI_CLOCK_CTRL, tp->pci_clock_ctrl);
5246         }
5247
5248         if (tp->tg3_flags2 & TG3_FLG2_PHY_SERDES) {
5249                 tp->mac_mode = MAC_MODE_PORT_MODE_TBI;
5250                 tw32_f(MAC_MODE, tp->mac_mode);
5251         } else if (tp->tg3_flags2 & TG3_FLG2_MII_SERDES) {
5252                 tp->mac_mode = MAC_MODE_PORT_MODE_GMII;
5253                 tw32_f(MAC_MODE, tp->mac_mode);
5254         } else
5255                 tw32_f(MAC_MODE, 0);
5256         udelay(40);
5257
5258         err = tg3_poll_fw(tp);
5259         if (err)
5260                 return err;
5261
5262         if ((tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS) &&
5263             tp->pci_chip_rev_id != CHIPREV_ID_5750_A0) {
5264                 val = tr32(0x7c00);
5265
5266                 tw32(0x7c00, val | (1 << 25));
5267         }
5268
5269         /* Reprobe ASF enable state.  */
5270         tp->tg3_flags &= ~TG3_FLAG_ENABLE_ASF;
5271         tp->tg3_flags2 &= ~TG3_FLG2_ASF_NEW_HANDSHAKE;
5272         tg3_read_mem(tp, NIC_SRAM_DATA_SIG, &val);
5273         if (val == NIC_SRAM_DATA_SIG_MAGIC) {
5274                 u32 nic_cfg;
5275
5276                 tg3_read_mem(tp, NIC_SRAM_DATA_CFG, &nic_cfg);
5277                 if (nic_cfg & NIC_SRAM_DATA_CFG_ASF_ENABLE) {
5278                         tp->tg3_flags |= TG3_FLAG_ENABLE_ASF;
5279                         if (tp->tg3_flags2 & TG3_FLG2_5750_PLUS)
5280                                 tp->tg3_flags2 |= TG3_FLG2_ASF_NEW_HANDSHAKE;
5281                 }
5282         }
5283
5284         return 0;
5285 }
5286
5287 /* tp->lock is held. */
5288 static void tg3_stop_fw(struct tg3 *tp)
5289 {
5290         if ((tp->tg3_flags & TG3_FLAG_ENABLE_ASF) &&
5291            !(tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)) {
5292                 u32 val;
5293                 int i;
5294
5295                 tg3_write_mem(tp, NIC_SRAM_FW_CMD_MBOX, FWCMD_NICDRV_PAUSE_FW);
5296                 val = tr32(GRC_RX_CPU_EVENT);
5297                 val |= (1 << 14);
5298                 tw32(GRC_RX_CPU_EVENT, val);
5299
5300                 /* Wait for RX cpu to ACK the event.  */
5301                 for (i = 0; i < 100; i++) {
5302                         if (!(tr32(GRC_RX_CPU_EVENT) & (1 << 14)))
5303                                 break;
5304                         udelay(1);
5305                 }
5306         }
5307 }
5308
5309 /* tp->lock is held. */
5310 static int tg3_halt(struct tg3 *tp, int kind, int silent)
5311 {
5312         int err;
5313
5314         tg3_stop_fw(tp);
5315
5316         tg3_write_sig_pre_reset(tp, kind);
5317
5318         tg3_abort_hw(tp, silent);
5319         err = tg3_chip_reset(tp);
5320
5321         tg3_write_sig_legacy(tp, kind);
5322         tg3_write_sig_post_reset(tp, kind);
5323
5324         if (err)
5325                 return err;
5326
5327         return 0;
5328 }
5329
5330 #define TG3_FW_RELEASE_MAJOR    0x0
5331 #define TG3_FW_RELASE_MINOR     0x0
5332 #define TG3_FW_RELEASE_FIX      0x0
5333 #define TG3_FW_START_ADDR       0x08000000
5334 #define TG3_FW_TEXT_ADDR        0x08000000
5335 #define TG3_FW_TEXT_LEN         0x9c0
5336 #define TG3_FW_RODATA_ADDR      0x080009c0
5337 #define TG3_FW_RODATA_LEN       0x60
5338 #define TG3_FW_DATA_ADDR        0x08000a40
5339 #define TG3_FW_DATA_LEN         0x20
5340 #define TG3_FW_SBSS_ADDR        0x08000a60
5341 #define TG3_FW_SBSS_LEN         0xc
5342 #define TG3_FW_BSS_ADDR         0x08000a70
5343 #define TG3_FW_BSS_LEN          0x10
5344
5345 static const u32 tg3FwText[(TG3_FW_TEXT_LEN / sizeof(u32)) + 1] = {
5346         0x00000000, 0x10000003, 0x00000000, 0x0000000d, 0x0000000d, 0x3c1d0800,
5347         0x37bd3ffc, 0x03a0f021, 0x3c100800, 0x26100000, 0x0e000018, 0x00000000,
5348         0x0000000d, 0x3c1d0800, 0x37bd3ffc, 0x03a0f021, 0x3c100800, 0x26100034,
5349         0x0e00021c, 0x00000000, 0x0000000d, 0x00000000, 0x00000000, 0x00000000,
5350         0x27bdffe0, 0x3c1cc000, 0xafbf0018, 0xaf80680c, 0x0e00004c, 0x241b2105,
5351         0x97850000, 0x97870002, 0x9782002c, 0x9783002e, 0x3c040800, 0x248409c0,
5352         0xafa00014, 0x00021400, 0x00621825, 0x00052c00, 0xafa30010, 0x8f860010,
5353         0x00e52825, 0x0e000060, 0x24070102, 0x3c02ac00, 0x34420100, 0x3c03ac01,
5354         0x34630100, 0xaf820490, 0x3c02ffff, 0xaf820494, 0xaf830498, 0xaf82049c,
5355         0x24020001, 0xaf825ce0, 0x0e00003f, 0xaf825d00, 0x0e000140, 0x00000000,
5356         0x8fbf0018, 0x03e00008, 0x27bd0020, 0x2402ffff, 0xaf825404, 0x8f835400,
5357         0x34630400, 0xaf835400, 0xaf825404, 0x3c020800, 0x24420034, 0xaf82541c,
5358         0x03e00008, 0xaf805400, 0x00000000, 0x00000000, 0x3c020800, 0x34423000,
5359         0x3c030800, 0x34633000, 0x3c040800, 0x348437ff, 0x3c010800, 0xac220a64,
5360         0x24020040, 0x3c010800, 0xac220a68, 0x3c010800, 0xac200a60, 0xac600000,
5361         0x24630004, 0x0083102b, 0x5040fffd, 0xac600000, 0x03e00008, 0x00000000,
5362         0x00804821, 0x8faa0010, 0x3c020800, 0x8c420a60, 0x3c040800, 0x8c840a68,
5363         0x8fab0014, 0x24430001, 0x0044102b, 0x3c010800, 0xac230a60, 0x14400003,
5364         0x00004021, 0x3c010800, 0xac200a60, 0x3c020800, 0x8c420a60, 0x3c030800,
5365         0x8c630a64, 0x91240000, 0x00021140, 0x00431021, 0x00481021, 0x25080001,
5366         0xa0440000, 0x29020008, 0x1440fff4, 0x25290001, 0x3c020800, 0x8c420a60,
5367         0x3c030800, 0x8c630a64, 0x8f84680c, 0x00021140, 0x00431021, 0xac440008,
5368         0xac45000c, 0xac460010, 0xac470014, 0xac4a0018, 0x03e00008, 0xac4b001c,
5369         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
5370         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
5371         0, 0, 0, 0, 0, 0,
5372         0x02000008, 0x00000000, 0x0a0001e3, 0x3c0a0001, 0x0a0001e3, 0x3c0a0002,
5373         0x0a0001e3, 0x00000000, 0x0a0001e3, 0x00000000, 0x0a0001e3, 0x00000000,
5374         0x0a0001e3, 0x00000000, 0x0a0001e3, 0x00000000, 0x0a0001e3, 0x00000000,
5375         0x0a0001e3, 0x00000000, 0x0a0001e3, 0x00000000, 0x0a0001e3, 0x00000000,
5376         0x0a0001e3, 0x3c0a0007, 0x0a0001e3, 0x3c0a0008, 0x0a0001e3, 0x3c0a0009,
5377         0x0a0001e3, 0x00000000, 0x0a0001e3, 0x00000000, 0x0a0001e3, 0x3c0a000b,
5378         0x0a0001e3, 0x3c0a000c, 0x0a0001e3, 0x3c0a000d, 0x0a0001e3, 0x00000000,
5379         0x0a0001e3, 0x00000000, 0x0a0001e3, 0x3c0a000e, 0x0a0001e3, 0x00000000,
5380         0x0a0001e3, 0x00000000, 0x0a0001e3, 0x00000000, 0x0a0001e3, 0x00000000,
5381         0x0a0001e3, 0x00000000, 0x0a0001e3, 0x00000000, 0x0a0001e3, 0x00000000,
5382         0x0a0001e3, 0x00000000, 0x0a0001e3, 0x3c0a0013, 0x0a0001e3, 0x3c0a0014,
5383         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
5384         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
5385         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
5386         0x27bdffe0, 0x00001821, 0x00001021, 0xafbf0018, 0xafb10014, 0xafb00010,
5387         0x3c010800, 0x00220821, 0xac200a70, 0x3c010800, 0x00220821, 0xac200a74,
5388         0x3c010800, 0x00220821, 0xac200a78, 0x24630001, 0x1860fff5, 0x2442000c,
5389         0x24110001, 0x8f906810, 0x32020004, 0x14400005, 0x24040001, 0x3c020800,
5390         0x8c420a78, 0x18400003, 0x00002021, 0x0e000182, 0x00000000, 0x32020001,
5391         0x10400003, 0x00000000, 0x0e000169, 0x00000000, 0x0a000153, 0xaf915028,
5392         0x8fbf0018, 0x8fb10014, 0x8fb00010, 0x03e00008, 0x27bd0020, 0x3c050800,
5393         0x8ca50a70, 0x3c060800, 0x8cc60a80, 0x3c070800, 0x8ce70a78, 0x27bdffe0,
5394         0x3c040800, 0x248409d0, 0xafbf0018, 0xafa00010, 0x0e000060, 0xafa00014,
5395         0x0e00017b, 0x00002021, 0x8fbf0018, 0x03e00008, 0x27bd0020, 0x24020001,
5396         0x8f836810, 0x00821004, 0x00021027, 0x00621824, 0x03e00008, 0xaf836810,
5397         0x27bdffd8, 0xafbf0024, 0x1080002e, 0xafb00020, 0x8f825cec, 0xafa20018,
5398         0x8f825cec, 0x3c100800, 0x26100a78, 0xafa2001c, 0x34028000, 0xaf825cec,
5399         0x8e020000, 0x18400016, 0x00000000, 0x3c020800, 0x94420a74, 0x8fa3001c,
5400         0x000221c0, 0xac830004, 0x8fa2001c, 0x3c010800, 0x0e000201, 0xac220a74,
5401         0x10400005, 0x00000000, 0x8e020000, 0x24420001, 0x0a0001df, 0xae020000,
5402         0x3c020800, 0x8c420a70, 0x00021c02, 0x000321c0, 0x0a0001c5, 0xafa2001c,
5403         0x0e000201, 0x00000000, 0x1040001f, 0x00000000, 0x8e020000, 0x8fa3001c,
5404         0x24420001, 0x3c010800, 0xac230a70, 0x3c010800, 0xac230a74, 0x0a0001df,
5405         0xae020000, 0x3c100800, 0x26100a78, 0x8e020000, 0x18400028, 0x00000000,
5406         0x0e000201, 0x00000000, 0x14400024, 0x00000000, 0x8e020000, 0x3c030800,
5407         0x8c630a70, 0x2442ffff, 0xafa3001c, 0x18400006, 0xae020000, 0x00031402,
5408         0x000221c0, 0x8c820004, 0x3c010800, 0xac220a70, 0x97a2001e, 0x2442ff00,
5409         0x2c420300, 0x1440000b, 0x24024000, 0x3c040800, 0x248409dc, 0xafa00010,
5410         0xafa00014, 0x8fa6001c, 0x24050008, 0x0e000060, 0x00003821, 0x0a0001df,
5411         0x00000000, 0xaf825cf8, 0x3c020800, 0x8c420a40, 0x8fa3001c, 0x24420001,
5412         0xaf835cf8, 0x3c010800, 0xac220a40, 0x8fbf0024, 0x8fb00020, 0x03e00008,
5413         0x27bd0028, 0x27bdffe0, 0x3c040800, 0x248409e8, 0x00002821, 0x00003021,
5414         0x00003821, 0xafbf0018, 0xafa00010, 0x0e000060, 0xafa00014, 0x8fbf0018,
5415         0x03e00008, 0x27bd0020, 0x8f82680c, 0x8f85680c, 0x00021827, 0x0003182b,
5416         0x00031823, 0x00431024, 0x00441021, 0x00a2282b, 0x10a00006, 0x00000000,
5417         0x00401821, 0x8f82680c, 0x0043102b, 0x1440fffd, 0x00000000, 0x03e00008,
5418         0x00000000, 0x3c040800, 0x8c840000, 0x3c030800, 0x8c630a40, 0x0064102b,
5419         0x54400002, 0x00831023, 0x00641023, 0x2c420008, 0x03e00008, 0x38420001,
5420         0x27bdffe0, 0x00802821, 0x3c040800, 0x24840a00, 0x00003021, 0x00003821,
5421         0xafbf0018, 0xafa00010, 0x0e000060, 0xafa00014, 0x0a000216, 0x00000000,
5422         0x8fbf0018, 0x03e00008, 0x27bd0020, 0x00000000, 0x27bdffe0, 0x3c1cc000,
5423         0xafbf0018, 0x0e00004c, 0xaf80680c, 0x3c040800, 0x24840a10, 0x03802821,
5424         0x00003021, 0x00003821, 0xafa00010, 0x0e000060, 0xafa00014, 0x2402ffff,
5425         0xaf825404, 0x3c0200aa, 0x0e000234, 0xaf825434, 0x8fbf0018, 0x03e00008,
5426         0x27bd0020, 0x00000000, 0x00000000, 0x00000000, 0x27bdffe8, 0xafb00010,
5427         0x24100001, 0xafbf0014, 0x3c01c003, 0xac200000, 0x8f826810, 0x30422000,
5428         0x10400003, 0x00000000, 0x0e000246, 0x00000000, 0x0a00023a, 0xaf905428,
5429         0x8fbf0014, 0x8fb00010, 0x03e00008, 0x27bd0018, 0x27bdfff8, 0x8f845d0c,
5430         0x3c0200ff, 0x3c030800, 0x8c630a50, 0x3442fff8, 0x00821024, 0x1043001e,
5431         0x3c0500ff, 0x34a5fff8, 0x3c06c003, 0x3c074000, 0x00851824, 0x8c620010,
5432         0x3c010800, 0xac230a50, 0x30420008, 0x10400005, 0x00871025, 0x8cc20000,
5433         0x24420001, 0xacc20000, 0x00871025, 0xaf825d0c, 0x8fa20000, 0x24420001,
5434         0xafa20000, 0x8fa20000, 0x8fa20000, 0x24420001, 0xafa20000, 0x8fa20000,
5435         0x8f845d0c, 0x3c030800, 0x8c630a50, 0x00851024, 0x1443ffe8, 0x00851824,
5436         0x27bd0008, 0x03e00008, 0x00000000, 0x00000000, 0x00000000
5437 };
5438
5439 static const u32 tg3FwRodata[(TG3_FW_RODATA_LEN / sizeof(u32)) + 1] = {
5440         0x35373031, 0x726c7341, 0x00000000, 0x00000000, 0x53774576, 0x656e7430,
5441         0x00000000, 0x726c7045, 0x76656e74, 0x31000000, 0x556e6b6e, 0x45766e74,
5442         0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x66617461, 0x6c457272,
5443         0x00000000, 0x00000000, 0x4d61696e, 0x43707542, 0x00000000, 0x00000000,
5444         0x00000000
5445 };
5446
5447 #if 0 /* All zeros, don't eat up space with it. */
5448 u32 tg3FwData[(TG3_FW_DATA_LEN / sizeof(u32)) + 1] = {
5449         0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000,
5450         0x00000000, 0x00000000, 0x00000000, 0x00000000
5451 };
5452 #endif
5453
5454 #define RX_CPU_SCRATCH_BASE     0x30000
5455 #define RX_CPU_SCRATCH_SIZE     0x04000
5456 #define TX_CPU_SCRATCH_BASE     0x34000
5457 #define TX_CPU_SCRATCH_SIZE     0x04000
5458
5459 /* tp->lock is held. */
5460 static int tg3_halt_cpu(struct tg3 *tp, u32 offset)
5461 {
5462         int i;
5463
5464         BUG_ON(offset == TX_CPU_BASE &&
5465             (tp->tg3_flags2 & TG3_FLG2_5705_PLUS));
5466
5467         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
5468                 u32 val = tr32(GRC_VCPU_EXT_CTRL);
5469
5470                 tw32(GRC_VCPU_EXT_CTRL, val | GRC_VCPU_EXT_CTRL_HALT_CPU);
5471                 return 0;
5472         }
5473         if (offset == RX_CPU_BASE) {
5474                 for (i = 0; i < 10000; i++) {
5475                         tw32(offset + CPU_STATE, 0xffffffff);
5476                         tw32(offset + CPU_MODE,  CPU_MODE_HALT);
5477                         if (tr32(offset + CPU_MODE) & CPU_MODE_HALT)
5478                                 break;
5479                 }
5480
5481                 tw32(offset + CPU_STATE, 0xffffffff);
5482                 tw32_f(offset + CPU_MODE,  CPU_MODE_HALT);
5483                 udelay(10);
5484         } else {
5485                 for (i = 0; i < 10000; i++) {
5486                         tw32(offset + CPU_STATE, 0xffffffff);
5487                         tw32(offset + CPU_MODE,  CPU_MODE_HALT);
5488                         if (tr32(offset + CPU_MODE) & CPU_MODE_HALT)
5489                                 break;
5490                 }
5491         }
5492
5493         if (i >= 10000) {
5494                 printk(KERN_ERR PFX "tg3_reset_cpu timed out for %s, "
5495                        "and %s CPU\n",
5496                        tp->dev->name,
5497                        (offset == RX_CPU_BASE ? "RX" : "TX"));
5498                 return -ENODEV;
5499         }
5500
5501         /* Clear firmware's nvram arbitration. */
5502         if (tp->tg3_flags & TG3_FLAG_NVRAM)
5503                 tw32(NVRAM_SWARB, SWARB_REQ_CLR0);
5504         return 0;
5505 }
5506
5507 struct fw_info {
5508         unsigned int text_base;
5509         unsigned int text_len;
5510         const u32 *text_data;
5511         unsigned int rodata_base;
5512         unsigned int rodata_len;
5513         const u32 *rodata_data;
5514         unsigned int data_base;
5515         unsigned int data_len;
5516         const u32 *data_data;
5517 };
5518
5519 /* tp->lock is held. */
5520 static int tg3_load_firmware_cpu(struct tg3 *tp, u32 cpu_base, u32 cpu_scratch_base,
5521                                  int cpu_scratch_size, struct fw_info *info)
5522 {
5523         int err, lock_err, i;
5524         void (*write_op)(struct tg3 *, u32, u32);
5525
5526         if (cpu_base == TX_CPU_BASE &&
5527             (tp->tg3_flags2 & TG3_FLG2_5705_PLUS)) {
5528                 printk(KERN_ERR PFX "tg3_load_firmware_cpu: Trying to load "
5529                        "TX cpu firmware on %s which is 5705.\n",
5530                        tp->dev->name);
5531                 return -EINVAL;
5532         }
5533
5534         if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS)
5535                 write_op = tg3_write_mem;
5536         else
5537                 write_op = tg3_write_indirect_reg32;
5538
5539         /* It is possible that bootcode is still loading at this point.
5540          * Get the nvram lock first before halting the cpu.
5541          */
5542         lock_err = tg3_nvram_lock(tp);
5543         err = tg3_halt_cpu(tp, cpu_base);
5544         if (!lock_err)
5545                 tg3_nvram_unlock(tp);
5546         if (err)
5547                 goto out;
5548
5549         for (i = 0; i < cpu_scratch_size; i += sizeof(u32))
5550                 write_op(tp, cpu_scratch_base + i, 0);
5551         tw32(cpu_base + CPU_STATE, 0xffffffff);
5552         tw32(cpu_base + CPU_MODE, tr32(cpu_base+CPU_MODE)|CPU_MODE_HALT);
5553         for (i = 0; i < (info->text_len / sizeof(u32)); i++)
5554                 write_op(tp, (cpu_scratch_base +
5555                               (info->text_base & 0xffff) +
5556                               (i * sizeof(u32))),
5557                          (info->text_data ?
5558                           info->text_data[i] : 0));
5559         for (i = 0; i < (info->rodata_len / sizeof(u32)); i++)
5560                 write_op(tp, (cpu_scratch_base +
5561                               (info->rodata_base & 0xffff) +
5562                               (i * sizeof(u32))),
5563                          (info->rodata_data ?
5564                           info->rodata_data[i] : 0));
5565         for (i = 0; i < (info->data_len / sizeof(u32)); i++)
5566                 write_op(tp, (cpu_scratch_base +
5567                               (info->data_base & 0xffff) +
5568                               (i * sizeof(u32))),
5569                          (info->data_data ?
5570                           info->data_data[i] : 0));
5571
5572         err = 0;
5573
5574 out:
5575         return err;
5576 }
5577
5578 /* tp->lock is held. */
5579 static int tg3_load_5701_a0_firmware_fix(struct tg3 *tp)
5580 {
5581         struct fw_info info;
5582         int err, i;
5583
5584         info.text_base = TG3_FW_TEXT_ADDR;
5585         info.text_len = TG3_FW_TEXT_LEN;
5586         info.text_data = &tg3FwText[0];
5587         info.rodata_base = TG3_FW_RODATA_ADDR;
5588         info.rodata_len = TG3_FW_RODATA_LEN;
5589         info.rodata_data = &tg3FwRodata[0];
5590         info.data_base = TG3_FW_DATA_ADDR;
5591         info.data_len = TG3_FW_DATA_LEN;
5592         info.data_data = NULL;
5593
5594         err = tg3_load_firmware_cpu(tp, RX_CPU_BASE,
5595                                     RX_CPU_SCRATCH_BASE, RX_CPU_SCRATCH_SIZE,
5596                                     &info);
5597         if (err)
5598                 return err;
5599
5600         err = tg3_load_firmware_cpu(tp, TX_CPU_BASE,
5601                                     TX_CPU_SCRATCH_BASE, TX_CPU_SCRATCH_SIZE,
5602                                     &info);
5603         if (err)
5604                 return err;
5605
5606         /* Now startup only the RX cpu. */
5607         tw32(RX_CPU_BASE + CPU_STATE, 0xffffffff);
5608         tw32_f(RX_CPU_BASE + CPU_PC,    TG3_FW_TEXT_ADDR);
5609
5610         for (i = 0; i < 5; i++) {
5611                 if (tr32(RX_CPU_BASE + CPU_PC) == TG3_FW_TEXT_ADDR)
5612                         break;
5613                 tw32(RX_CPU_BASE + CPU_STATE, 0xffffffff);
5614                 tw32(RX_CPU_BASE + CPU_MODE,  CPU_MODE_HALT);
5615                 tw32_f(RX_CPU_BASE + CPU_PC,    TG3_FW_TEXT_ADDR);
5616                 udelay(1000);
5617         }
5618         if (i >= 5) {
5619                 printk(KERN_ERR PFX "tg3_load_firmware fails for %s "
5620                        "to set RX CPU PC, is %08x should be %08x\n",
5621                        tp->dev->name, tr32(RX_CPU_BASE + CPU_PC),
5622                        TG3_FW_TEXT_ADDR);
5623                 return -ENODEV;
5624         }
5625         tw32(RX_CPU_BASE + CPU_STATE, 0xffffffff);
5626         tw32_f(RX_CPU_BASE + CPU_MODE,  0x00000000);
5627
5628         return 0;
5629 }
5630
5631
5632 #define TG3_TSO_FW_RELEASE_MAJOR        0x1
5633 #define TG3_TSO_FW_RELASE_MINOR         0x6
5634 #define TG3_TSO_FW_RELEASE_FIX          0x0
5635 #define TG3_TSO_FW_START_ADDR           0x08000000
5636 #define TG3_TSO_FW_TEXT_ADDR            0x08000000
5637 #define TG3_TSO_FW_TEXT_LEN             0x1aa0
5638 #define TG3_TSO_FW_RODATA_ADDR          0x08001aa0
5639 #define TG3_TSO_FW_RODATA_LEN           0x60
5640 #define TG3_TSO_FW_DATA_ADDR            0x08001b20
5641 #define TG3_TSO_FW_DATA_LEN             0x30
5642 #define TG3_TSO_FW_SBSS_ADDR            0x08001b50
5643 #define TG3_TSO_FW_SBSS_LEN             0x2c
5644 #define TG3_TSO_FW_BSS_ADDR             0x08001b80
5645 #define TG3_TSO_FW_BSS_LEN              0x894
5646
5647 static const u32 tg3TsoFwText[(TG3_TSO_FW_TEXT_LEN / 4) + 1] = {
5648         0x0e000003, 0x00000000, 0x08001b24, 0x00000000, 0x10000003, 0x00000000,
5649         0x0000000d, 0x0000000d, 0x3c1d0800, 0x37bd4000, 0x03a0f021, 0x3c100800,
5650         0x26100000, 0x0e000010, 0x00000000, 0x0000000d, 0x27bdffe0, 0x3c04fefe,
5651         0xafbf0018, 0x0e0005d8, 0x34840002, 0x0e000668, 0x00000000, 0x3c030800,
5652         0x90631b68, 0x24020002, 0x3c040800, 0x24841aac, 0x14620003, 0x24050001,
5653         0x3c040800, 0x24841aa0, 0x24060006, 0x00003821, 0xafa00010, 0x0e00067c,
5654         0xafa00014, 0x8f625c50, 0x34420001, 0xaf625c50, 0x8f625c90, 0x34420001,
5655         0xaf625c90, 0x2402ffff, 0x0e000034, 0xaf625404, 0x8fbf0018, 0x03e00008,
5656         0x27bd0020, 0x00000000, 0x00000000, 0x00000000, 0x27bdffe0, 0xafbf001c,
5657         0xafb20018, 0xafb10014, 0x0e00005b, 0xafb00010, 0x24120002, 0x24110001,
5658         0x8f706820, 0x32020100, 0x10400003, 0x00000000, 0x0e0000bb, 0x00000000,
5659         0x8f706820, 0x32022000, 0x10400004, 0x32020001, 0x0e0001f0, 0x24040001,
5660         0x32020001, 0x10400003, 0x00000000, 0x0e0000a3, 0x00000000, 0x3c020800,
5661         0x90421b98, 0x14520003, 0x00000000, 0x0e0004c0, 0x00000000, 0x0a00003c,
5662         0xaf715028, 0x8fbf001c, 0x8fb20018, 0x8fb10014, 0x8fb00010, 0x03e00008,
5663         0x27bd0020, 0x27bdffe0, 0x3c040800, 0x24841ac0, 0x00002821, 0x00003021,
5664         0x00003821, 0xafbf0018, 0xafa00010, 0x0e00067c, 0xafa00014, 0x3c040800,
5665         0x248423d8, 0xa4800000, 0x3c010800, 0xa0201b98, 0x3c010800, 0xac201b9c,
5666         0x3c010800, 0xac201ba0, 0x3c010800, 0xac201ba4, 0x3c010800, 0xac201bac,
5667         0x3c010800, 0xac201bb8, 0x3c010800, 0xac201bbc, 0x8f624434, 0x3c010800,
5668         0xac221b88, 0x8f624438, 0x3c010800, 0xac221b8c, 0x8f624410, 0xac80f7a8,
5669         0x3c010800, 0xac201b84, 0x3c010800, 0xac2023e0, 0x3c010800, 0xac2023c8,
5670         0x3c010800, 0xac2023cc, 0x3c010800, 0xac202400, 0x3c010800, 0xac221b90,
5671         0x8f620068, 0x24030007, 0x00021702, 0x10430005, 0x00000000, 0x8f620068,
5672         0x00021702, 0x14400004, 0x24020001, 0x3c010800, 0x0a000097, 0xac20240c,
5673         0xac820034, 0x3c040800, 0x24841acc, 0x3c050800, 0x8ca5240c, 0x00003021,
5674         0x00003821, 0xafa00010, 0x0e00067c, 0xafa00014, 0x8fbf0018, 0x03e00008,
5675         0x27bd0020, 0x27bdffe0, 0x3c040800, 0x24841ad8, 0x00002821, 0x00003021,
5676         0x00003821, 0xafbf0018, 0xafa00010, 0x0e00067c, 0xafa00014, 0x0e00005b,
5677         0x00000000, 0x0e0000b4, 0x00002021, 0x8fbf0018, 0x03e00008, 0x27bd0020,
5678         0x24020001, 0x8f636820, 0x00821004, 0x00021027, 0x00621824, 0x03e00008,
5679         0xaf636820, 0x27bdffd0, 0xafbf002c, 0xafb60028, 0xafb50024, 0xafb40020,
5680         0xafb3001c, 0xafb20018, 0xafb10014, 0xafb00010, 0x8f675c5c, 0x3c030800,
5681         0x24631bbc, 0x8c620000, 0x14470005, 0x3c0200ff, 0x3c020800, 0x90421b98,
5682         0x14400119, 0x3c0200ff, 0x3442fff8, 0x00e28824, 0xac670000, 0x00111902,
5683         0x306300ff, 0x30e20003, 0x000211c0, 0x00622825, 0x00a04021, 0x00071602,
5684         0x3c030800, 0x90631b98, 0x3044000f, 0x14600036, 0x00804821, 0x24020001,
5685         0x3c010800, 0xa0221b98, 0x00051100, 0x00821025, 0x3c010800, 0xac201b9c,
5686         0x3c010800, 0xac201ba0, 0x3c010800, 0xac201ba4, 0x3c010800, 0xac201bac,
5687         0x3c010800, 0xac201bb8, 0x3c010800, 0xac201bb0, 0x3c010800, 0xac201bb4,
5688         0x3c010800, 0xa42223d8, 0x9622000c, 0x30437fff, 0x3c010800, 0xa4222410,
5689         0x30428000, 0x3c010800, 0xa4231bc6, 0x10400005, 0x24020001, 0x3c010800,
5690         0xac2223f4, 0x0a000102, 0x2406003e, 0x24060036, 0x3c010800, 0xac2023f4,
5691         0x9622000a, 0x3c030800, 0x94631bc6, 0x3c010800, 0xac2023f0, 0x3c010800,
5692         0xac2023f8, 0x00021302, 0x00021080, 0x00c21021, 0x00621821, 0x3c010800,
5693         0xa42223d0, 0x3c010800, 0x0a000115, 0xa4231b96, 0x9622000c, 0x3c010800,
5694         0xa42223ec, 0x3c040800, 0x24841b9c, 0x8c820000, 0x00021100, 0x3c010800,
5695         0x00220821, 0xac311bc8, 0x8c820000, 0x00021100, 0x3c010800, 0x00220821,
5696         0xac271bcc, 0x8c820000,&