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[ARM] 4222/1: S3C2443: Remove reference to missing S3C2443_PM
[linux-2.6/btrfs-unstable.git] / drivers / net / qla3xxx.c
blob8844c20eac2d0cee6d87367b5b28e23155fb3aa4
1 /*
2 * QLogic QLA3xxx NIC HBA Driver
3 * Copyright (c) 2003-2006 QLogic Corporation
4 *
5 * See LICENSE.qla3xxx for copyright and licensing details.
6 */
7
8 #include <linux/kernel.h>
9 #include <linux/init.h>
10 #include <linux/types.h>
11 #include <linux/module.h>
12 #include <linux/list.h>
13 #include <linux/pci.h>
14 #include <linux/dma-mapping.h>
15 #include <linux/sched.h>
16 #include <linux/slab.h>
17 #include <linux/dmapool.h>
18 #include <linux/mempool.h>
19 #include <linux/spinlock.h>
20 #include <linux/kthread.h>
21 #include <linux/interrupt.h>
22 #include <linux/errno.h>
23 #include <linux/ioport.h>
24 #include <linux/ip.h>
25 #include <linux/if_arp.h>
26 #include <linux/if_ether.h>
27 #include <linux/netdevice.h>
28 #include <linux/etherdevice.h>
29 #include <linux/ethtool.h>
30 #include <linux/skbuff.h>
31 #include <linux/rtnetlink.h>
32 #include <linux/if_vlan.h>
33 #include <linux/init.h>
34 #include <linux/delay.h>
35 #include <linux/mm.h>
36
37 #include "qla3xxx.h"
38
39 #define DRV_NAME "qla3xxx"
40 #define DRV_STRING "QLogic ISP3XXX Network Driver"
41 #define DRV_VERSION "v2.02.00-k36"
42 #define PFX DRV_NAME " "
43
44 static const char ql3xxx_driver_name[] = DRV_NAME;
45 static const char ql3xxx_driver_version[] = DRV_VERSION;
46
47 MODULE_AUTHOR("QLogic Corporation");
48 MODULE_DESCRIPTION("QLogic ISP3XXX Network Driver " DRV_VERSION " ");
49 MODULE_LICENSE("GPL");
50 MODULE_VERSION(DRV_VERSION);
51
52 static const u32 default_msg
53 = NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK
54 | NETIF_MSG_IFUP | NETIF_MSG_IFDOWN;
55
56 static int debug = -1; /* defaults above */
57 module_param(debug, int, 0);
58 MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)");
59
60 static int msi;
61 module_param(msi, int, 0);
62 MODULE_PARM_DESC(msi, "Turn on Message Signaled Interrupts.");
63
64 static struct pci_device_id ql3xxx_pci_tbl[] __devinitdata = {
65 {PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, QL3022_DEVICE_ID)},
66 /* required last entry */
67 {0,}
68 };
69
70 MODULE_DEVICE_TABLE(pci, ql3xxx_pci_tbl);
71
72 /*
73 * Caller must take hw_lock.
74 */
75 static int ql_sem_spinlock(struct ql3_adapter *qdev,
76 u32 sem_mask, u32 sem_bits)
77 {
78 struct ql3xxx_port_registers __iomem *port_regs = qdev->mem_map_registers;
79 u32 value;
80 unsigned int seconds = 3;
81
82 do {
83 writel((sem_mask | sem_bits),
84 &port_regs->CommonRegs.semaphoreReg);
85 value = readl(&port_regs->CommonRegs.semaphoreReg);
86 if ((value & (sem_mask >> 16)) == sem_bits)
87 return 0;
88 ssleep(1);
89 } while(--seconds);
90 return -1;
91 }
92
93 static void ql_sem_unlock(struct ql3_adapter *qdev, u32 sem_mask)
94 {
95 struct ql3xxx_port_registers __iomem *port_regs = qdev->mem_map_registers;
96 writel(sem_mask, &port_regs->CommonRegs.semaphoreReg);
97 readl(&port_regs->CommonRegs.semaphoreReg);
98 }
99
100 static int ql_sem_lock(struct ql3_adapter *qdev, u32 sem_mask, u32 sem_bits)
101 {
102 struct ql3xxx_port_registers __iomem *port_regs = qdev->mem_map_registers;
103 u32 value;
104
105 writel((sem_mask | sem_bits), &port_regs->CommonRegs.semaphoreReg);
106 value = readl(&port_regs->CommonRegs.semaphoreReg);
107 return ((value & (sem_mask >> 16)) == sem_bits);
108 }
109
110 /*
111 * Caller holds hw_lock.
112 */
113 static int ql_wait_for_drvr_lock(struct ql3_adapter *qdev)
114 {
115 int i = 0;
116
117 while (1) {
118 if (!ql_sem_lock(qdev,
119 QL_DRVR_SEM_MASK,
120 (QL_RESOURCE_BITS_BASE_CODE | (qdev->mac_index)
121 * 2) << 1)) {
122 if (i < 10) {
123 ssleep(1);
124 i++;
125 } else {
126 printk(KERN_ERR PFX "%s: Timed out waiting for "
127 "driver lock...\n",
128 qdev->ndev->name);
129 return 0;
130 }
131 } else {
132 printk(KERN_DEBUG PFX
133 "%s: driver lock acquired.\n",
134 qdev->ndev->name);
135 return 1;
136 }
137 }
138 }
139
140 static void ql_set_register_page(struct ql3_adapter *qdev, u32 page)
141 {
142 struct ql3xxx_port_registers __iomem *port_regs = qdev->mem_map_registers;
143
144 writel(((ISP_CONTROL_NP_MASK << 16) | page),
145 &port_regs->CommonRegs.ispControlStatus);
146 readl(&port_regs->CommonRegs.ispControlStatus);
147 qdev->current_page = page;
148 }
149
150 static u32 ql_read_common_reg_l(struct ql3_adapter *qdev,
151 u32 __iomem * reg)
152 {
153 u32 value;
154 unsigned long hw_flags;
155
156 spin_lock_irqsave(&qdev->hw_lock, hw_flags);
157 value = readl(reg);
158 spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
159
160 return value;
161 }
162
163 static u32 ql_read_common_reg(struct ql3_adapter *qdev,
164 u32 __iomem * reg)
165 {
166 return readl(reg);
167 }
168
169 static u32 ql_read_page0_reg_l(struct ql3_adapter *qdev, u32 __iomem *reg)
170 {
171 u32 value;
172 unsigned long hw_flags;
173
174 spin_lock_irqsave(&qdev->hw_lock, hw_flags);
175
176 if (qdev->current_page != 0)
177 ql_set_register_page(qdev,0);
178 value = readl(reg);
179
180 spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
181 return value;
182 }
183
184 static u32 ql_read_page0_reg(struct ql3_adapter *qdev, u32 __iomem *reg)
185 {
186 if (qdev->current_page != 0)
187 ql_set_register_page(qdev,0);
188 return readl(reg);
189 }
190
191 static void ql_write_common_reg_l(struct ql3_adapter *qdev,
192 u32 __iomem *reg, u32 value)
193 {
194 unsigned long hw_flags;
195
196 spin_lock_irqsave(&qdev->hw_lock, hw_flags);
197 writel(value, reg);
198 readl(reg);
199 spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
200 return;
201 }
202
203 static void ql_write_common_reg(struct ql3_adapter *qdev,
204 u32 __iomem *reg, u32 value)
205 {
206 writel(value, reg);
207 readl(reg);
208 return;
209 }
210
211 static void ql_write_nvram_reg(struct ql3_adapter *qdev,
212 u32 __iomem *reg, u32 value)
213 {
214 writel(value, reg);
215 readl(reg);
216 udelay(1);
217 return;
218 }
219
220 static void ql_write_page0_reg(struct ql3_adapter *qdev,
221 u32 __iomem *reg, u32 value)
222 {
223 if (qdev->current_page != 0)
224 ql_set_register_page(qdev,0);
225 writel(value, reg);
226 readl(reg);
227 return;
228 }
229
230 /*
231 * Caller holds hw_lock. Only called during init.
232 */
233 static void ql_write_page1_reg(struct ql3_adapter *qdev,
234 u32 __iomem *reg, u32 value)
235 {
236 if (qdev->current_page != 1)
237 ql_set_register_page(qdev,1);
238 writel(value, reg);
239 readl(reg);
240 return;
241 }
242
243 /*
244 * Caller holds hw_lock. Only called during init.
245 */
246 static void ql_write_page2_reg(struct ql3_adapter *qdev,
247 u32 __iomem *reg, u32 value)
248 {
249 if (qdev->current_page != 2)
250 ql_set_register_page(qdev,2);
251 writel(value, reg);
252 readl(reg);
253 return;
254 }
255
256 static void ql_disable_interrupts(struct ql3_adapter *qdev)
257 {
258 struct ql3xxx_port_registers __iomem *port_regs = qdev->mem_map_registers;
259
260 ql_write_common_reg_l(qdev, &port_regs->CommonRegs.ispInterruptMaskReg,
261 (ISP_IMR_ENABLE_INT << 16));
262
263 }
264
265 static void ql_enable_interrupts(struct ql3_adapter *qdev)
266 {
267 struct ql3xxx_port_registers __iomem *port_regs = qdev->mem_map_registers;
268
269 ql_write_common_reg_l(qdev, &port_regs->CommonRegs.ispInterruptMaskReg,
270 ((0xff << 16) | ISP_IMR_ENABLE_INT));
271
272 }
273
274 static void ql_release_to_lrg_buf_free_list(struct ql3_adapter *qdev,
275 struct ql_rcv_buf_cb *lrg_buf_cb)
276 {
277 u64 map;
278 lrg_buf_cb->next = NULL;
279
280 if (qdev->lrg_buf_free_tail == NULL) { /* The list is empty */
281 qdev->lrg_buf_free_head = qdev->lrg_buf_free_tail = lrg_buf_cb;
282 } else {
283 qdev->lrg_buf_free_tail->next = lrg_buf_cb;
284 qdev->lrg_buf_free_tail = lrg_buf_cb;
285 }
286
287 if (!lrg_buf_cb->skb) {
288 lrg_buf_cb->skb = dev_alloc_skb(qdev->lrg_buffer_len);
289 if (unlikely(!lrg_buf_cb->skb)) {
290 printk(KERN_ERR PFX "%s: failed dev_alloc_skb().\n",
291 qdev->ndev->name);
292 qdev->lrg_buf_skb_check++;
293 } else {
294 /*
295 * We save some space to copy the ethhdr from first
296 * buffer
297 */
298 skb_reserve(lrg_buf_cb->skb, QL_HEADER_SPACE);
299 map = pci_map_single(qdev->pdev,
300 lrg_buf_cb->skb->data,
301 qdev->lrg_buffer_len -
302 QL_HEADER_SPACE,
303 PCI_DMA_FROMDEVICE);
304 lrg_buf_cb->buf_phy_addr_low =
305 cpu_to_le32(LS_64BITS(map));
306 lrg_buf_cb->buf_phy_addr_high =
307 cpu_to_le32(MS_64BITS(map));
308 pci_unmap_addr_set(lrg_buf_cb, mapaddr, map);
309 pci_unmap_len_set(lrg_buf_cb, maplen,
310 qdev->lrg_buffer_len -
311 QL_HEADER_SPACE);
312 }
313 }
314
315 qdev->lrg_buf_free_count++;
316 }
317
318 static struct ql_rcv_buf_cb *ql_get_from_lrg_buf_free_list(struct ql3_adapter
319 *qdev)
320 {
321 struct ql_rcv_buf_cb *lrg_buf_cb;
322
323 if ((lrg_buf_cb = qdev->lrg_buf_free_head) != NULL) {
324 if ((qdev->lrg_buf_free_head = lrg_buf_cb->next) == NULL)
325 qdev->lrg_buf_free_tail = NULL;
326 qdev->lrg_buf_free_count--;
327 }
328
329 return lrg_buf_cb;
330 }
331
332 static u32 addrBits = EEPROM_NO_ADDR_BITS;
333 static u32 dataBits = EEPROM_NO_DATA_BITS;
334
335 static void fm93c56a_deselect(struct ql3_adapter *qdev);
336 static void eeprom_readword(struct ql3_adapter *qdev, u32 eepromAddr,
337 unsigned short *value);
338
339 /*
340 * Caller holds hw_lock.
341 */
342 static void fm93c56a_select(struct ql3_adapter *qdev)
343 {
344 struct ql3xxx_port_registers __iomem *port_regs =
345 qdev->mem_map_registers;
346
347 qdev->eeprom_cmd_data = AUBURN_EEPROM_CS_1;
348 ql_write_nvram_reg(qdev, &port_regs->CommonRegs.serialPortInterfaceReg,
349 ISP_NVRAM_MASK | qdev->eeprom_cmd_data);
350 ql_write_nvram_reg(qdev, &port_regs->CommonRegs.serialPortInterfaceReg,
351 ((ISP_NVRAM_MASK << 16) | qdev->eeprom_cmd_data));
352 }
353
354 /*
355 * Caller holds hw_lock.
356 */
357 static void fm93c56a_cmd(struct ql3_adapter *qdev, u32 cmd, u32 eepromAddr)
358 {
359 int i;
360 u32 mask;
361 u32 dataBit;
362 u32 previousBit;
363 struct ql3xxx_port_registers __iomem *port_regs =
364 qdev->mem_map_registers;
365
366 /* Clock in a zero, then do the start bit */
367 ql_write_nvram_reg(qdev, &port_regs->CommonRegs.serialPortInterfaceReg,
368 ISP_NVRAM_MASK | qdev->eeprom_cmd_data |
369 AUBURN_EEPROM_DO_1);
370 ql_write_nvram_reg(qdev, &port_regs->CommonRegs.serialPortInterfaceReg,
371 ISP_NVRAM_MASK | qdev->
372 eeprom_cmd_data | AUBURN_EEPROM_DO_1 |
373 AUBURN_EEPROM_CLK_RISE);
374 ql_write_nvram_reg(qdev, &port_regs->CommonRegs.serialPortInterfaceReg,
375 ISP_NVRAM_MASK | qdev->
376 eeprom_cmd_data | AUBURN_EEPROM_DO_1 |
377 AUBURN_EEPROM_CLK_FALL);
378
379 mask = 1 << (FM93C56A_CMD_BITS - 1);
380 /* Force the previous data bit to be different */
381 previousBit = 0xffff;
382 for (i = 0; i < FM93C56A_CMD_BITS; i++) {
383 dataBit =
384 (cmd & mask) ? AUBURN_EEPROM_DO_1 : AUBURN_EEPROM_DO_0;
385 if (previousBit != dataBit) {
386 /*
387 * If the bit changed, then change the DO state to
388 * match
389 */
390 ql_write_nvram_reg(qdev,
391 &port_regs->CommonRegs.
392 serialPortInterfaceReg,
393 ISP_NVRAM_MASK | qdev->
394 eeprom_cmd_data | dataBit);
395 previousBit = dataBit;
396 }
397 ql_write_nvram_reg(qdev,
398 &port_regs->CommonRegs.
399 serialPortInterfaceReg,
400 ISP_NVRAM_MASK | qdev->
401 eeprom_cmd_data | dataBit |
402 AUBURN_EEPROM_CLK_RISE);
403 ql_write_nvram_reg(qdev,
404 &port_regs->CommonRegs.
405 serialPortInterfaceReg,
406 ISP_NVRAM_MASK | qdev->
407 eeprom_cmd_data | dataBit |
408 AUBURN_EEPROM_CLK_FALL);
409 cmd = cmd << 1;
410 }
411
412 mask = 1 << (addrBits - 1);
413 /* Force the previous data bit to be different */
414 previousBit = 0xffff;
415 for (i = 0; i < addrBits; i++) {
416 dataBit =
417 (eepromAddr & mask) ? AUBURN_EEPROM_DO_1 :
418 AUBURN_EEPROM_DO_0;
419 if (previousBit != dataBit) {
420 /*
421 * If the bit changed, then change the DO state to
422 * match
423 */
424 ql_write_nvram_reg(qdev,
425 &port_regs->CommonRegs.
426 serialPortInterfaceReg,
427 ISP_NVRAM_MASK | qdev->
428 eeprom_cmd_data | dataBit);
429 previousBit = dataBit;
430 }
431 ql_write_nvram_reg(qdev,
432 &port_regs->CommonRegs.
433 serialPortInterfaceReg,
434 ISP_NVRAM_MASK | qdev->
435 eeprom_cmd_data | dataBit |
436 AUBURN_EEPROM_CLK_RISE);
437 ql_write_nvram_reg(qdev,
438 &port_regs->CommonRegs.
439 serialPortInterfaceReg,
440 ISP_NVRAM_MASK | qdev->
441 eeprom_cmd_data | dataBit |
442 AUBURN_EEPROM_CLK_FALL);
443 eepromAddr = eepromAddr << 1;
444 }
445 }
446
447 /*
448 * Caller holds hw_lock.
449 */
450 static void fm93c56a_deselect(struct ql3_adapter *qdev)
451 {
452 struct ql3xxx_port_registers __iomem *port_regs =
453 qdev->mem_map_registers;
454 qdev->eeprom_cmd_data = AUBURN_EEPROM_CS_0;
455 ql_write_nvram_reg(qdev, &port_regs->CommonRegs.serialPortInterfaceReg,
456 ISP_NVRAM_MASK | qdev->eeprom_cmd_data);
457 }
458
459 /*
460 * Caller holds hw_lock.
461 */
462 static void fm93c56a_datain(struct ql3_adapter *qdev, unsigned short *value)
463 {
464 int i;
465 u32 data = 0;
466 u32 dataBit;
467 struct ql3xxx_port_registers __iomem *port_regs =
468 qdev->mem_map_registers;
469
470 /* Read the data bits */
471 /* The first bit is a dummy. Clock right over it. */
472 for (i = 0; i < dataBits; i++) {
473 ql_write_nvram_reg(qdev,
474 &port_regs->CommonRegs.
475 serialPortInterfaceReg,
476 ISP_NVRAM_MASK | qdev->eeprom_cmd_data |
477 AUBURN_EEPROM_CLK_RISE);
478 ql_write_nvram_reg(qdev,
479 &port_regs->CommonRegs.
480 serialPortInterfaceReg,
481 ISP_NVRAM_MASK | qdev->eeprom_cmd_data |
482 AUBURN_EEPROM_CLK_FALL);
483 dataBit =
484 (ql_read_common_reg
485 (qdev,
486 &port_regs->CommonRegs.
487 serialPortInterfaceReg) & AUBURN_EEPROM_DI_1) ? 1 : 0;
488 data = (data << 1) | dataBit;
489 }
490 *value = (u16) data;
491 }
492
493 /*
494 * Caller holds hw_lock.
495 */
496 static void eeprom_readword(struct ql3_adapter *qdev,
497 u32 eepromAddr, unsigned short *value)
498 {
499 fm93c56a_select(qdev);
500 fm93c56a_cmd(qdev, (int)FM93C56A_READ, eepromAddr);
501 fm93c56a_datain(qdev, value);
502 fm93c56a_deselect(qdev);
503 }
504
505 static void ql_swap_mac_addr(u8 * macAddress)
506 {
507 #ifdef __BIG_ENDIAN
508 u8 temp;
509 temp = macAddress[0];
510 macAddress[0] = macAddress[1];
511 macAddress[1] = temp;
512 temp = macAddress[2];
513 macAddress[2] = macAddress[3];
514 macAddress[3] = temp;
515 temp = macAddress[4];
516 macAddress[4] = macAddress[5];
517 macAddress[5] = temp;
518 #endif
519 }
520
521 static int ql_get_nvram_params(struct ql3_adapter *qdev)
522 {
523 u16 *pEEPROMData;
524 u16 checksum = 0;
525 u32 index;
526 unsigned long hw_flags;
527
528 spin_lock_irqsave(&qdev->hw_lock, hw_flags);
529
530 pEEPROMData = (u16 *) & qdev->nvram_data;
531 qdev->eeprom_cmd_data = 0;
532 if(ql_sem_spinlock(qdev, QL_NVRAM_SEM_MASK,
533 (QL_RESOURCE_BITS_BASE_CODE | (qdev->mac_index) *
534 2) << 10)) {
535 printk(KERN_ERR PFX"%s: Failed ql_sem_spinlock().\n",
536 __func__);
537 spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
538 return -1;
539 }
540
541 for (index = 0; index < EEPROM_SIZE; index++) {
542 eeprom_readword(qdev, index, pEEPROMData);
543 checksum += *pEEPROMData;
544 pEEPROMData++;
545 }
546 ql_sem_unlock(qdev, QL_NVRAM_SEM_MASK);
547
548 if (checksum != 0) {
549 printk(KERN_ERR PFX "%s: checksum should be zero, is %x!!\n",
550 qdev->ndev->name, checksum);
551 spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
552 return -1;
553 }
554
555 /*
556 * We have a problem with endianness for the MAC addresses
557 * and the two 8-bit values version, and numPorts. We
558 * have to swap them on big endian systems.
559 */
560 ql_swap_mac_addr(qdev->nvram_data.funcCfg_fn0.macAddress);
561 ql_swap_mac_addr(qdev->nvram_data.funcCfg_fn1.macAddress);
562 ql_swap_mac_addr(qdev->nvram_data.funcCfg_fn2.macAddress);
563 ql_swap_mac_addr(qdev->nvram_data.funcCfg_fn3.macAddress);
564 pEEPROMData = (u16 *) & qdev->nvram_data.version;
565 *pEEPROMData = le16_to_cpu(*pEEPROMData);
566
567 spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
568 return checksum;
569 }
570
571 static const u32 PHYAddr[2] = {
572 PORT0_PHY_ADDRESS, PORT1_PHY_ADDRESS
573 };
574
575 static int ql_wait_for_mii_ready(struct ql3_adapter *qdev)
576 {
577 struct ql3xxx_port_registers __iomem *port_regs =
578 qdev->mem_map_registers;
579 u32 temp;
580 int count = 1000;
581
582 while (count) {
583 temp = ql_read_page0_reg(qdev, &port_regs->macMIIStatusReg);
584 if (!(temp & MAC_MII_STATUS_BSY))
585 return 0;
586 udelay(10);
587 count--;
588 }
589 return -1;
590 }
591
592 static void ql_mii_enable_scan_mode(struct ql3_adapter *qdev)
593 {
594 struct ql3xxx_port_registers __iomem *port_regs =
595 qdev->mem_map_registers;
596 u32 scanControl;
597
598 if (qdev->numPorts > 1) {
599 /* Auto scan will cycle through multiple ports */
600 scanControl = MAC_MII_CONTROL_AS | MAC_MII_CONTROL_SC;
601 } else {
602 scanControl = MAC_MII_CONTROL_SC;
603 }
604
605 /*
606 * Scan register 1 of PHY/PETBI,
607 * Set up to scan both devices
608 * The autoscan starts from the first register, completes
609 * the last one before rolling over to the first
610 */
611 ql_write_page0_reg(qdev, &port_regs->macMIIMgmtAddrReg,
612 PHYAddr[0] | MII_SCAN_REGISTER);
613
614 ql_write_page0_reg(qdev, &port_regs->macMIIMgmtControlReg,
615 (scanControl) |
616 ((MAC_MII_CONTROL_SC | MAC_MII_CONTROL_AS) << 16));
617 }
618
619 static u8 ql_mii_disable_scan_mode(struct ql3_adapter *qdev)
620 {
621 u8 ret;
622 struct ql3xxx_port_registers __iomem *port_regs =
623 qdev->mem_map_registers;
624
625 /* See if scan mode is enabled before we turn it off */
626 if (ql_read_page0_reg(qdev, &port_regs->macMIIMgmtControlReg) &
627 (MAC_MII_CONTROL_AS | MAC_MII_CONTROL_SC)) {
628 /* Scan is enabled */
629 ret = 1;
630 } else {
631 /* Scan is disabled */
632 ret = 0;
633 }
634
635 /*
636 * When disabling scan mode you must first change the MII register
637 * address
638 */
639 ql_write_page0_reg(qdev, &port_regs->macMIIMgmtAddrReg,
640 PHYAddr[0] | MII_SCAN_REGISTER);
641
642 ql_write_page0_reg(qdev, &port_regs->macMIIMgmtControlReg,
643 ((MAC_MII_CONTROL_SC | MAC_MII_CONTROL_AS |
644 MAC_MII_CONTROL_RC) << 16));
645
646 return ret;
647 }
648
649 static int ql_mii_write_reg_ex(struct ql3_adapter *qdev,
650 u16 regAddr, u16 value, u32 mac_index)
651 {
652 struct ql3xxx_port_registers __iomem *port_regs =
653 qdev->mem_map_registers;
654 u8 scanWasEnabled;
655
656 scanWasEnabled = ql_mii_disable_scan_mode(qdev);
657
658 if (ql_wait_for_mii_ready(qdev)) {
659 if (netif_msg_link(qdev))
660 printk(KERN_WARNING PFX
661 "%s Timed out waiting for management port to "
662 "get free before issuing command.\n",
663 qdev->ndev->name);
664 return -1;
665 }
666
667 ql_write_page0_reg(qdev, &port_regs->macMIIMgmtAddrReg,
668 PHYAddr[mac_index] | regAddr);
669
670 ql_write_page0_reg(qdev, &port_regs->macMIIMgmtDataReg, value);
671
672 /* Wait for write to complete 9/10/04 SJP */
673 if (ql_wait_for_mii_ready(qdev)) {
674 if (netif_msg_link(qdev))
675 printk(KERN_WARNING PFX
676 "%s: Timed out waiting for management port to"
677 "get free before issuing command.\n",
678 qdev->ndev->name);
679 return -1;
680 }
681
682 if (scanWasEnabled)
683 ql_mii_enable_scan_mode(qdev);
684
685 return 0;
686 }
687
688 static int ql_mii_read_reg_ex(struct ql3_adapter *qdev, u16 regAddr,
689 u16 * value, u32 mac_index)
690 {
691 struct ql3xxx_port_registers __iomem *port_regs =
692 qdev->mem_map_registers;
693 u8 scanWasEnabled;
694 u32 temp;
695
696 scanWasEnabled = ql_mii_disable_scan_mode(qdev);
697
698 if (ql_wait_for_mii_ready(qdev)) {
699 if (netif_msg_link(qdev))
700 printk(KERN_WARNING PFX
701 "%s: Timed out waiting for management port to "
702 "get free before issuing command.\n",
703 qdev->ndev->name);
704 return -1;
705 }
706
707 ql_write_page0_reg(qdev, &port_regs->macMIIMgmtAddrReg,
708 PHYAddr[mac_index] | regAddr);
709
710 ql_write_page0_reg(qdev, &port_regs->macMIIMgmtControlReg,
711 (MAC_MII_CONTROL_RC << 16));
712
713 ql_write_page0_reg(qdev, &port_regs->macMIIMgmtControlReg,
714 (MAC_MII_CONTROL_RC << 16) | MAC_MII_CONTROL_RC);
715
716 /* Wait for the read to complete */
717 if (ql_wait_for_mii_ready(qdev)) {
718 if (netif_msg_link(qdev))
719 printk(KERN_WARNING PFX
720 "%s: Timed out waiting for management port to "
721 "get free after issuing command.\n",
722 qdev->ndev->name);
723 return -1;
724 }
725
726 temp = ql_read_page0_reg(qdev, &port_regs->macMIIMgmtDataReg);
727 *value = (u16) temp;
728
729 if (scanWasEnabled)
730 ql_mii_enable_scan_mode(qdev);
731
732 return 0;
733 }
734
735 static int ql_mii_write_reg(struct ql3_adapter *qdev, u16 regAddr, u16 value)
736 {
737 struct ql3xxx_port_registers __iomem *port_regs =
738 qdev->mem_map_registers;
739
740 ql_mii_disable_scan_mode(qdev);
741
742 if (ql_wait_for_mii_ready(qdev)) {
743 if (netif_msg_link(qdev))
744 printk(KERN_WARNING PFX
745 "%s: Timed out waiting for management port to "
746 "get free before issuing command.\n",
747 qdev->ndev->name);
748 return -1;
749 }
750
751 ql_write_page0_reg(qdev, &port_regs->macMIIMgmtAddrReg,
752 qdev->PHYAddr | regAddr);
753
754 ql_write_page0_reg(qdev, &port_regs->macMIIMgmtDataReg, value);
755
756 /* Wait for write to complete. */
757 if (ql_wait_for_mii_ready(qdev)) {
758 if (netif_msg_link(qdev))
759 printk(KERN_WARNING PFX
760 "%s: Timed out waiting for management port to "
761 "get free before issuing command.\n",
762 qdev->ndev->name);
763 return -1;
764 }
765
766 ql_mii_enable_scan_mode(qdev);
767
768 return 0;
769 }
770
771 static int ql_mii_read_reg(struct ql3_adapter *qdev, u16 regAddr, u16 *value)
772 {
773 u32 temp;
774 struct ql3xxx_port_registers __iomem *port_regs =
775 qdev->mem_map_registers;
776
777 ql_mii_disable_scan_mode(qdev);
778
779 if (ql_wait_for_mii_ready(qdev)) {
780 if (netif_msg_link(qdev))
781 printk(KERN_WARNING PFX
782 "%s: Timed out waiting for management port to "
783 "get free before issuing command.\n",
784 qdev->ndev->name);
785 return -1;
786 }
787
788 ql_write_page0_reg(qdev, &port_regs->macMIIMgmtAddrReg,
789 qdev->PHYAddr | regAddr);
790
791 ql_write_page0_reg(qdev, &port_regs->macMIIMgmtControlReg,
792 (MAC_MII_CONTROL_RC << 16));
793
794 ql_write_page0_reg(qdev, &port_regs->macMIIMgmtControlReg,
795 (MAC_MII_CONTROL_RC << 16) | MAC_MII_CONTROL_RC);
796
797 /* Wait for the read to complete */
798 if (ql_wait_for_mii_ready(qdev)) {
799 if (netif_msg_link(qdev))
800 printk(KERN_WARNING PFX
801 "%s: Timed out waiting for management port to "
802 "get free before issuing command.\n",
803 qdev->ndev->name);
804 return -1;
805 }
806
807 temp = ql_read_page0_reg(qdev, &port_regs->macMIIMgmtDataReg);
808 *value = (u16) temp;
809
810 ql_mii_enable_scan_mode(qdev);
811
812 return 0;
813 }
814
815 static void ql_petbi_reset(struct ql3_adapter *qdev)
816 {
817 ql_mii_write_reg(qdev, PETBI_CONTROL_REG, PETBI_CTRL_SOFT_RESET);
818 }
819
820 static void ql_petbi_start_neg(struct ql3_adapter *qdev)
821 {
822 u16 reg;
823
824 /* Enable Auto-negotiation sense */
825 ql_mii_read_reg(qdev, PETBI_TBI_CTRL, &reg);
826 reg |= PETBI_TBI_AUTO_SENSE;
827 ql_mii_write_reg(qdev, PETBI_TBI_CTRL, reg);
828
829 ql_mii_write_reg(qdev, PETBI_NEG_ADVER,
830 PETBI_NEG_PAUSE | PETBI_NEG_DUPLEX);
831
832 ql_mii_write_reg(qdev, PETBI_CONTROL_REG,
833 PETBI_CTRL_AUTO_NEG | PETBI_CTRL_RESTART_NEG |
834 PETBI_CTRL_FULL_DUPLEX | PETBI_CTRL_SPEED_1000);
835
836 }
837
838 static void ql_petbi_reset_ex(struct ql3_adapter *qdev, u32 mac_index)
839 {
840 ql_mii_write_reg_ex(qdev, PETBI_CONTROL_REG, PETBI_CTRL_SOFT_RESET,
841 mac_index);
842 }
843
844 static void ql_petbi_start_neg_ex(struct ql3_adapter *qdev, u32 mac_index)
845 {
846 u16 reg;
847
848 /* Enable Auto-negotiation sense */
849 ql_mii_read_reg_ex(qdev, PETBI_TBI_CTRL, &reg, mac_index);
850 reg |= PETBI_TBI_AUTO_SENSE;
851 ql_mii_write_reg_ex(qdev, PETBI_TBI_CTRL, reg, mac_index);
852
853 ql_mii_write_reg_ex(qdev, PETBI_NEG_ADVER,
854 PETBI_NEG_PAUSE | PETBI_NEG_DUPLEX, mac_index);
855
856 ql_mii_write_reg_ex(qdev, PETBI_CONTROL_REG,
857 PETBI_CTRL_AUTO_NEG | PETBI_CTRL_RESTART_NEG |
858 PETBI_CTRL_FULL_DUPLEX | PETBI_CTRL_SPEED_1000,
859 mac_index);
860 }
861
862 static void ql_petbi_init(struct ql3_adapter *qdev)
863 {
864 ql_petbi_reset(qdev);
865 ql_petbi_start_neg(qdev);
866 }
867
868 static void ql_petbi_init_ex(struct ql3_adapter *qdev, u32 mac_index)
869 {
870 ql_petbi_reset_ex(qdev, mac_index);
871 ql_petbi_start_neg_ex(qdev, mac_index);
872 }
873
874 static int ql_is_petbi_neg_pause(struct ql3_adapter *qdev)
875 {
876 u16 reg;
877
878 if (ql_mii_read_reg(qdev, PETBI_NEG_PARTNER, &reg) < 0)
879 return 0;
880
881 return (reg & PETBI_NEG_PAUSE_MASK) == PETBI_NEG_PAUSE;
882 }
883
884 static int ql_phy_get_speed(struct ql3_adapter *qdev)
885 {
886 u16 reg;
887
888 if (ql_mii_read_reg(qdev, AUX_CONTROL_STATUS, &reg) < 0)
889 return 0;
890
891 reg = (((reg & 0x18) >> 3) & 3);
892
893 if (reg == 2)
894 return SPEED_1000;
895 else if (reg == 1)
896 return SPEED_100;
897 else if (reg == 0)
898 return SPEED_10;
899 else
900 return -1;
901 }
902
903 static int ql_is_full_dup(struct ql3_adapter *qdev)
904 {
905 u16 reg;
906
907 if (ql_mii_read_reg(qdev, AUX_CONTROL_STATUS, &reg) < 0)
908 return 0;
909
910 return (reg & PHY_AUX_DUPLEX_STAT) != 0;
911 }
912
913 static int ql_is_phy_neg_pause(struct ql3_adapter *qdev)
914 {
915 u16 reg;
916
917 if (ql_mii_read_reg(qdev, PHY_NEG_PARTNER, &reg) < 0)
918 return 0;
919
920 return (reg & PHY_NEG_PAUSE) != 0;
921 }
922
923 /*
924 * Caller holds hw_lock.
925 */
926 static void ql_mac_enable(struct ql3_adapter *qdev, u32 enable)
927 {
928 struct ql3xxx_port_registers __iomem *port_regs =
929 qdev->mem_map_registers;
930 u32 value;
931
932 if (enable)
933 value = (MAC_CONFIG_REG_PE | (MAC_CONFIG_REG_PE << 16));
934 else
935 value = (MAC_CONFIG_REG_PE << 16);
936
937 if (qdev->mac_index)
938 ql_write_page0_reg(qdev, &port_regs->mac1ConfigReg, value);
939 else
940 ql_write_page0_reg(qdev, &port_regs->mac0ConfigReg, value);
941 }
942
943 /*
944 * Caller holds hw_lock.
945 */
946 static void ql_mac_cfg_soft_reset(struct ql3_adapter *qdev, u32 enable)
947 {
948 struct ql3xxx_port_registers __iomem *port_regs =
949 qdev->mem_map_registers;
950 u32 value;
951
952 if (enable)
953 value = (MAC_CONFIG_REG_SR | (MAC_CONFIG_REG_SR << 16));
954 else
955 value = (MAC_CONFIG_REG_SR << 16);
956
957 if (qdev->mac_index)
958 ql_write_page0_reg(qdev, &port_regs->mac1ConfigReg, value);
959 else
960 ql_write_page0_reg(qdev, &port_regs->mac0ConfigReg, value);
961 }
962
963 /*
964 * Caller holds hw_lock.
965 */
966 static void ql_mac_cfg_gig(struct ql3_adapter *qdev, u32 enable)
967 {
968 struct ql3xxx_port_registers __iomem *port_regs =
969 qdev->mem_map_registers;
970 u32 value;
971
972 if (enable)
973 value = (MAC_CONFIG_REG_GM | (MAC_CONFIG_REG_GM << 16));
974 else
975 value = (MAC_CONFIG_REG_GM << 16);
976
977 if (qdev->mac_index)
978 ql_write_page0_reg(qdev, &port_regs->mac1ConfigReg, value);
979 else
980 ql_write_page0_reg(qdev, &port_regs->mac0ConfigReg, value);
981 }
982
983 /*
984 * Caller holds hw_lock.
985 */
986 static void ql_mac_cfg_full_dup(struct ql3_adapter *qdev, u32 enable)
987 {
988 struct ql3xxx_port_registers __iomem *port_regs =
989 qdev->mem_map_registers;
990 u32 value;
991
992 if (enable)
993 value = (MAC_CONFIG_REG_FD | (MAC_CONFIG_REG_FD << 16));
994 else
995 value = (MAC_CONFIG_REG_FD << 16);
996
997 if (qdev->mac_index)
998 ql_write_page0_reg(qdev, &port_regs->mac1ConfigReg, value);
999 else
1000 ql_write_page0_reg(qdev, &port_regs->mac0ConfigReg, value);
1001 }
1002
1003 /*
1004 * Caller holds hw_lock.
1005 */
1006 static void ql_mac_cfg_pause(struct ql3_adapter *qdev, u32 enable)
1007 {
1008 struct ql3xxx_port_registers __iomem *port_regs =
1009 qdev->mem_map_registers;
1010 u32 value;
1011
1012 if (enable)
1013 value =
1014 ((MAC_CONFIG_REG_TF | MAC_CONFIG_REG_RF) |
1015 ((MAC_CONFIG_REG_TF | MAC_CONFIG_REG_RF) << 16));
1016 else
1017 value = ((MAC_CONFIG_REG_TF | MAC_CONFIG_REG_RF) << 16);
1018
1019 if (qdev->mac_index)
1020 ql_write_page0_reg(qdev, &port_regs->mac1ConfigReg, value);
1021 else
1022 ql_write_page0_reg(qdev, &port_regs->mac0ConfigReg, value);
1023 }
1024
1025 /*
1026 * Caller holds hw_lock.
1027 */
1028 static int ql_is_fiber(struct ql3_adapter *qdev)
1029 {
1030 struct ql3xxx_port_registers __iomem *port_regs =
1031 qdev->mem_map_registers;
1032 u32 bitToCheck = 0;
1033 u32 temp;
1034
1035 switch (qdev->mac_index) {
1036 case 0:
1037 bitToCheck = PORT_STATUS_SM0;
1038 break;
1039 case 1:
1040 bitToCheck = PORT_STATUS_SM1;
1041 break;
1042 }
1043
1044 temp = ql_read_page0_reg(qdev, &port_regs->portStatus);
1045 return (temp & bitToCheck) != 0;
1046 }
1047
1048 static int ql_is_auto_cfg(struct ql3_adapter *qdev)
1049 {
1050 u16 reg;
1051 ql_mii_read_reg(qdev, 0x00, &reg);
1052 return (reg & 0x1000) != 0;
1053 }
1054
1055 /*
1056 * Caller holds hw_lock.
1057 */
1058 static int ql_is_auto_neg_complete(struct ql3_adapter *qdev)
1059 {
1060 struct ql3xxx_port_registers __iomem *port_regs =
1061 qdev->mem_map_registers;
1062 u32 bitToCheck = 0;
1063 u32 temp;
1064
1065 switch (qdev->mac_index) {
1066 case 0:
1067 bitToCheck = PORT_STATUS_AC0;
1068 break;
1069 case 1:
1070 bitToCheck = PORT_STATUS_AC1;
1071 break;
1072 }
1073
1074 temp = ql_read_page0_reg(qdev, &port_regs->portStatus);
1075 if (temp & bitToCheck) {
1076 if (netif_msg_link(qdev))
1077 printk(KERN_INFO PFX
1078 "%s: Auto-Negotiate complete.\n",
1079 qdev->ndev->name);
1080 return 1;
1081 } else {
1082 if (netif_msg_link(qdev))
1083 printk(KERN_WARNING PFX
1084 "%s: Auto-Negotiate incomplete.\n",
1085 qdev->ndev->name);
1086 return 0;
1087 }
1088 }
1089
1090 /*
1091 * ql_is_neg_pause() returns 1 if pause was negotiated to be on
1092 */
1093 static int ql_is_neg_pause(struct ql3_adapter *qdev)
1094 {
1095 if (ql_is_fiber(qdev))
1096 return ql_is_petbi_neg_pause(qdev);
1097 else
1098 return ql_is_phy_neg_pause(qdev);
1099 }
1100
1101 static int ql_auto_neg_error(struct ql3_adapter *qdev)
1102 {
1103 struct ql3xxx_port_registers __iomem *port_regs =
1104 qdev->mem_map_registers;
1105 u32 bitToCheck = 0;
1106 u32 temp;
1107
1108 switch (qdev->mac_index) {
1109 case 0:
1110 bitToCheck = PORT_STATUS_AE0;
1111 break;
1112 case 1:
1113 bitToCheck = PORT_STATUS_AE1;
1114 break;
1115 }
1116 temp = ql_read_page0_reg(qdev, &port_regs->portStatus);
1117 return (temp & bitToCheck) != 0;
1118 }
1119
1120 static u32 ql_get_link_speed(struct ql3_adapter *qdev)
1121 {
1122 if (ql_is_fiber(qdev))
1123 return SPEED_1000;
1124 else
1125 return ql_phy_get_speed(qdev);
1126 }
1127
1128 static int ql_is_link_full_dup(struct ql3_adapter *qdev)
1129 {
1130 if (ql_is_fiber(qdev))
1131 return 1;
1132 else
1133 return ql_is_full_dup(qdev);
1134 }
1135
1136 /*
1137 * Caller holds hw_lock.
1138 */
1139 static int ql_link_down_detect(struct ql3_adapter *qdev)
1140 {
1141 struct ql3xxx_port_registers __iomem *port_regs =
1142 qdev->mem_map_registers;
1143 u32 bitToCheck = 0;
1144 u32 temp;
1145
1146 switch (qdev->mac_index) {
1147 case 0:
1148 bitToCheck = ISP_CONTROL_LINK_DN_0;
1149 break;
1150 case 1:
1151 bitToCheck = ISP_CONTROL_LINK_DN_1;
1152 break;
1153 }
1154
1155 temp =
1156 ql_read_common_reg(qdev, &port_regs->CommonRegs.ispControlStatus);
1157 return (temp & bitToCheck) != 0;
1158 }
1159
1160 /*
1161 * Caller holds hw_lock.
1162 */
1163 static int ql_link_down_detect_clear(struct ql3_adapter *qdev)
1164 {
1165 struct ql3xxx_port_registers __iomem *port_regs =
1166 qdev->mem_map_registers;
1167
1168 switch (qdev->mac_index) {
1169 case 0:
1170 ql_write_common_reg(qdev,
1171 &port_regs->CommonRegs.ispControlStatus,
1172 (ISP_CONTROL_LINK_DN_0) |
1173 (ISP_CONTROL_LINK_DN_0 << 16));
1174 break;
1175
1176 case 1:
1177 ql_write_common_reg(qdev,
1178 &port_regs->CommonRegs.ispControlStatus,
1179 (ISP_CONTROL_LINK_DN_1) |
1180 (ISP_CONTROL_LINK_DN_1 << 16));
1181 break;
1182
1183 default:
1184 return 1;
1185 }
1186
1187 return 0;
1188 }
1189
1190 /*
1191 * Caller holds hw_lock.
1192 */
1193 static int ql_this_adapter_controls_port(struct ql3_adapter *qdev,
1194 u32 mac_index)
1195 {
1196 struct ql3xxx_port_registers __iomem *port_regs =
1197 qdev->mem_map_registers;
1198 u32 bitToCheck = 0;
1199 u32 temp;
1200
1201 switch (mac_index) {
1202 case 0:
1203 bitToCheck = PORT_STATUS_F1_ENABLED;
1204 break;
1205 case 1:
1206 bitToCheck = PORT_STATUS_F3_ENABLED;
1207 break;
1208 default:
1209 break;
1210 }
1211
1212 temp = ql_read_page0_reg(qdev, &port_regs->portStatus);
1213 if (temp & bitToCheck) {
1214 if (netif_msg_link(qdev))
1215 printk(KERN_DEBUG PFX
1216 "%s: is not link master.\n", qdev->ndev->name);
1217 return 0;
1218 } else {
1219 if (netif_msg_link(qdev))
1220 printk(KERN_DEBUG PFX
1221 "%s: is link master.\n", qdev->ndev->name);
1222 return 1;
1223 }
1224 }
1225
1226 static void ql_phy_reset_ex(struct ql3_adapter *qdev, u32 mac_index)
1227 {
1228 ql_mii_write_reg_ex(qdev, CONTROL_REG, PHY_CTRL_SOFT_RESET, mac_index);
1229 }
1230
1231 static void ql_phy_start_neg_ex(struct ql3_adapter *qdev, u32 mac_index)
1232 {
1233 u16 reg;
1234
1235 ql_mii_write_reg_ex(qdev, PHY_NEG_ADVER,
1236 PHY_NEG_PAUSE | PHY_NEG_ADV_SPEED | 1, mac_index);
1237
1238 ql_mii_read_reg_ex(qdev, CONTROL_REG, &reg, mac_index);
1239 ql_mii_write_reg_ex(qdev, CONTROL_REG, reg | PHY_CTRL_RESTART_NEG,
1240 mac_index);
1241 }
1242
1243 static void ql_phy_init_ex(struct ql3_adapter *qdev, u32 mac_index)
1244 {
1245 ql_phy_reset_ex(qdev, mac_index);
1246 ql_phy_start_neg_ex(qdev, mac_index);
1247 }
1248
1249 /*
1250 * Caller holds hw_lock.
1251 */
1252 static u32 ql_get_link_state(struct ql3_adapter *qdev)
1253 {
1254 struct ql3xxx_port_registers __iomem *port_regs =
1255 qdev->mem_map_registers;
1256 u32 bitToCheck = 0;
1257 u32 temp, linkState;
1258
1259 switch (qdev->mac_index) {
1260 case 0:
1261 bitToCheck = PORT_STATUS_UP0;
1262 break;
1263 case 1:
1264 bitToCheck = PORT_STATUS_UP1;
1265 break;
1266 }
1267 temp = ql_read_page0_reg(qdev, &port_regs->portStatus);
1268 if (temp & bitToCheck) {
1269 linkState = LS_UP;
1270 } else {
1271 linkState = LS_DOWN;
1272 if (netif_msg_link(qdev))
1273 printk(KERN_WARNING PFX
1274 "%s: Link is down.\n", qdev->ndev->name);
1275 }
1276 return linkState;
1277 }
1278
1279 static int ql_port_start(struct ql3_adapter *qdev)
1280 {
1281 if(ql_sem_spinlock(qdev, QL_PHY_GIO_SEM_MASK,
1282 (QL_RESOURCE_BITS_BASE_CODE | (qdev->mac_index) *
1283 2) << 7))
1284 return -1;
1285
1286 if (ql_is_fiber(qdev)) {
1287 ql_petbi_init(qdev);
1288 } else {
1289 /* Copper port */
1290 ql_phy_init_ex(qdev, qdev->mac_index);
1291 }
1292
1293 ql_sem_unlock(qdev, QL_PHY_GIO_SEM_MASK);
1294 return 0;
1295 }
1296
1297 static int ql_finish_auto_neg(struct ql3_adapter *qdev)
1298 {
1299
1300 if(ql_sem_spinlock(qdev, QL_PHY_GIO_SEM_MASK,
1301 (QL_RESOURCE_BITS_BASE_CODE | (qdev->mac_index) *
1302 2) << 7))
1303 return -1;
1304
1305 if (!ql_auto_neg_error(qdev)) {
1306 if (test_bit(QL_LINK_MASTER,&qdev->flags)) {
1307 /* configure the MAC */
1308 if (netif_msg_link(qdev))
1309 printk(KERN_DEBUG PFX
1310 "%s: Configuring link.\n",
1311 qdev->ndev->
1312 name);
1313 ql_mac_cfg_soft_reset(qdev, 1);
1314 ql_mac_cfg_gig(qdev,
1315 (ql_get_link_speed
1316 (qdev) ==
1317 SPEED_1000));
1318 ql_mac_cfg_full_dup(qdev,
1319 ql_is_link_full_dup
1320 (qdev));
1321 ql_mac_cfg_pause(qdev,
1322 ql_is_neg_pause
1323 (qdev));
1324 ql_mac_cfg_soft_reset(qdev, 0);
1325
1326 /* enable the MAC */
1327 if (netif_msg_link(qdev))
1328 printk(KERN_DEBUG PFX
1329 "%s: Enabling mac.\n",
1330 qdev->ndev->
1331 name);
1332 ql_mac_enable(qdev, 1);
1333 }
1334
1335 if (netif_msg_link(qdev))
1336 printk(KERN_DEBUG PFX
1337 "%s: Change port_link_state LS_DOWN to LS_UP.\n",
1338 qdev->ndev->name);
1339 qdev->port_link_state = LS_UP;
1340 netif_start_queue(qdev->ndev);
1341 netif_carrier_on(qdev->ndev);
1342 if (netif_msg_link(qdev))
1343 printk(KERN_INFO PFX
1344 "%s: Link is up at %d Mbps, %s duplex.\n",
1345 qdev->ndev->name,
1346 ql_get_link_speed(qdev),
1347 ql_is_link_full_dup(qdev)
1348 ? "full" : "half");
1349
1350 } else { /* Remote error detected */
1351
1352 if (test_bit(QL_LINK_MASTER,&qdev->flags)) {
1353 if (netif_msg_link(qdev))
1354 printk(KERN_DEBUG PFX
1355 "%s: Remote error detected. "
1356 "Calling ql_port_start().\n",
1357 qdev->ndev->
1358 name);
1359 /*
1360 * ql_port_start() is shared code and needs
1361 * to lock the PHY on it's own.
1362 */
1363 ql_sem_unlock(qdev, QL_PHY_GIO_SEM_MASK);
1364 if(ql_port_start(qdev)) {/* Restart port */
1365 return -1;
1366 } else
1367 return 0;
1368 }
1369 }
1370 ql_sem_unlock(qdev, QL_PHY_GIO_SEM_MASK);
1371 return 0;
1372 }
1373
1374 static void ql_link_state_machine(struct ql3_adapter *qdev)
1375 {
1376 u32 curr_link_state;
1377 unsigned long hw_flags;
1378
1379 spin_lock_irqsave(&qdev->hw_lock, hw_flags);
1380
1381 curr_link_state = ql_get_link_state(qdev);
1382
1383 if (test_bit(QL_RESET_ACTIVE,&qdev->flags)) {
1384 if (netif_msg_link(qdev))
1385 printk(KERN_INFO PFX
1386 "%s: Reset in progress, skip processing link "
1387 "state.\n", qdev->ndev->name);
1388 return;
1389 }
1390
1391 switch (qdev->port_link_state) {
1392 default:
1393 if (test_bit(QL_LINK_MASTER,&qdev->flags)) {
1394 ql_port_start(qdev);
1395 }
1396 qdev->port_link_state = LS_DOWN;
1397 /* Fall Through */
1398
1399 case LS_DOWN:
1400 if (netif_msg_link(qdev))
1401 printk(KERN_DEBUG PFX
1402 "%s: port_link_state = LS_DOWN.\n",
1403 qdev->ndev->name);
1404 if (curr_link_state == LS_UP) {
1405 if (netif_msg_link(qdev))
1406 printk(KERN_DEBUG PFX
1407 "%s: curr_link_state = LS_UP.\n",
1408 qdev->ndev->name);
1409 if (ql_is_auto_neg_complete(qdev))
1410 ql_finish_auto_neg(qdev);
1411
1412 if (qdev->port_link_state == LS_UP)
1413 ql_link_down_detect_clear(qdev);
1414
1415 }
1416 break;
1417
1418 case LS_UP:
1419 /*
1420 * See if the link is currently down or went down and came
1421 * back up
1422 */
1423 if ((curr_link_state == LS_DOWN) || ql_link_down_detect(qdev)) {
1424 if (netif_msg_link(qdev))
1425 printk(KERN_INFO PFX "%s: Link is down.\n",
1426 qdev->ndev->name);
1427 qdev->port_link_state = LS_DOWN;
1428 }
1429 break;
1430 }
1431 spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
1432 }
1433
1434 /*
1435 * Caller must take hw_lock and QL_PHY_GIO_SEM.
1436 */
1437 static void ql_get_phy_owner(struct ql3_adapter *qdev)
1438 {
1439 if (ql_this_adapter_controls_port(qdev, qdev->mac_index))
1440 set_bit(QL_LINK_MASTER,&qdev->flags);
1441 else
1442 clear_bit(QL_LINK_MASTER,&qdev->flags);
1443 }
1444
1445 /*
1446 * Caller must take hw_lock and QL_PHY_GIO_SEM.
1447 */
1448 static void ql_init_scan_mode(struct ql3_adapter *qdev)
1449 {
1450 ql_mii_enable_scan_mode(qdev);
1451
1452 if (test_bit(QL_LINK_OPTICAL,&qdev->flags)) {
1453 if (ql_this_adapter_controls_port(qdev, qdev->mac_index))
1454 ql_petbi_init_ex(qdev, qdev->mac_index);
1455 } else {
1456 if (ql_this_adapter_controls_port(qdev, qdev->mac_index))
1457 ql_phy_init_ex(qdev, qdev->mac_index);
1458 }
1459 }
1460
1461 /*
1462 * MII_Setup needs to be called before taking the PHY out of reset so that the
1463 * management interface clock speed can be set properly. It would be better if
1464 * we had a way to disable MDC until after the PHY is out of reset, but we
1465 * don't have that capability.
1466 */
1467 static int ql_mii_setup(struct ql3_adapter *qdev)
1468 {
1469 u32 reg;
1470 struct ql3xxx_port_registers __iomem *port_regs =
1471 qdev->mem_map_registers;
1472
1473 if(ql_sem_spinlock(qdev, QL_PHY_GIO_SEM_MASK,
1474 (QL_RESOURCE_BITS_BASE_CODE | (qdev->mac_index) *
1475 2) << 7))
1476 return -1;
1477
1478 /* Divide 125MHz clock by 28 to meet PHY timing requirements */
1479 reg = MAC_MII_CONTROL_CLK_SEL_DIV28;
1480
1481 ql_write_page0_reg(qdev, &port_regs->macMIIMgmtControlReg,
1482 reg | ((MAC_MII_CONTROL_CLK_SEL_MASK) << 16));
1483
1484 ql_sem_unlock(qdev, QL_PHY_GIO_SEM_MASK);
1485 return 0;
1486 }
1487
1488 static u32 ql_supported_modes(struct ql3_adapter *qdev)
1489 {
1490 u32 supported;
1491
1492 if (test_bit(QL_LINK_OPTICAL,&qdev->flags)) {
1493 supported = SUPPORTED_1000baseT_Full | SUPPORTED_FIBRE
1494 | SUPPORTED_Autoneg;
1495 } else {
1496 supported = SUPPORTED_10baseT_Half
1497 | SUPPORTED_10baseT_Full
1498 | SUPPORTED_100baseT_Half
1499 | SUPPORTED_100baseT_Full
1500 | SUPPORTED_1000baseT_Half
1501 | SUPPORTED_1000baseT_Full
1502 | SUPPORTED_Autoneg | SUPPORTED_TP;
1503 }
1504
1505 return supported;
1506 }
1507
1508 static int ql_get_auto_cfg_status(struct ql3_adapter *qdev)
1509 {
1510 int status;
1511 unsigned long hw_flags;
1512 spin_lock_irqsave(&qdev->hw_lock, hw_flags);
1513 if(ql_sem_spinlock(qdev, QL_PHY_GIO_SEM_MASK,
1514 (QL_RESOURCE_BITS_BASE_CODE | (qdev->mac_index) *
1515 2) << 7))
1516 return 0;
1517 status = ql_is_auto_cfg(qdev);
1518 ql_sem_unlock(qdev, QL_PHY_GIO_SEM_MASK);
1519 spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
1520 return status;
1521 }
1522
1523 static u32 ql_get_speed(struct ql3_adapter *qdev)
1524 {
1525 u32 status;
1526 unsigned long hw_flags;
1527 spin_lock_irqsave(&qdev->hw_lock, hw_flags);
1528 if(ql_sem_spinlock(qdev, QL_PHY_GIO_SEM_MASK,
1529 (QL_RESOURCE_BITS_BASE_CODE | (qdev->mac_index) *
1530 2) << 7))
1531 return 0;
1532 status = ql_get_link_speed(qdev);
1533 ql_sem_unlock(qdev, QL_PHY_GIO_SEM_MASK);
1534 spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
1535 return status;
1536 }
1537
1538 static int ql_get_full_dup(struct ql3_adapter *qdev)
1539 {
1540 int status;
1541 unsigned long hw_flags;
1542 spin_lock_irqsave(&qdev->hw_lock, hw_flags);
1543 if(ql_sem_spinlock(qdev, QL_PHY_GIO_SEM_MASK,
1544 (QL_RESOURCE_BITS_BASE_CODE | (qdev->mac_index) *
1545 2) << 7))
1546 return 0;
1547 status = ql_is_link_full_dup(qdev);
1548 ql_sem_unlock(qdev, QL_PHY_GIO_SEM_MASK);
1549 spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
1550 return status;
1551 }
1552
1553
1554 static int ql_get_settings(struct net_device *ndev, struct ethtool_cmd *ecmd)
1555 {
1556 struct ql3_adapter *qdev = netdev_priv(ndev);
1557
1558 ecmd->transceiver = XCVR_INTERNAL;
1559 ecmd->supported = ql_supported_modes(qdev);
1560
1561 if (test_bit(QL_LINK_OPTICAL,&qdev->flags)) {
1562 ecmd->port = PORT_FIBRE;
1563 } else {
1564 ecmd->port = PORT_TP;
1565 ecmd->phy_address = qdev->PHYAddr;
1566 }
1567 ecmd->advertising = ql_supported_modes(qdev);
1568 ecmd->autoneg = ql_get_auto_cfg_status(qdev);
1569 ecmd->speed = ql_get_speed(qdev);
1570 ecmd->duplex = ql_get_full_dup(qdev);
1571 return 0;
1572 }
1573
1574 static void ql_get_drvinfo(struct net_device *ndev,
1575 struct ethtool_drvinfo *drvinfo)
1576 {
1577 struct ql3_adapter *qdev = netdev_priv(ndev);
1578 strncpy(drvinfo->driver, ql3xxx_driver_name, 32);
1579 strncpy(drvinfo->version, ql3xxx_driver_version, 32);
1580 strncpy(drvinfo->fw_version, "N/A", 32);
1581 strncpy(drvinfo->bus_info, pci_name(qdev->pdev), 32);
1582 drvinfo->n_stats = 0;
1583 drvinfo->testinfo_len = 0;
1584 drvinfo->regdump_len = 0;
1585 drvinfo->eedump_len = 0;
1586 }
1587
1588 static u32 ql_get_msglevel(struct net_device *ndev)
1589 {
1590 struct ql3_adapter *qdev = netdev_priv(ndev);
1591 return qdev->msg_enable;
1592 }
1593
1594 static void ql_set_msglevel(struct net_device *ndev, u32 value)
1595 {
1596 struct ql3_adapter *qdev = netdev_priv(ndev);
1597 qdev->msg_enable = value;
1598 }
1599
1600 static const struct ethtool_ops ql3xxx_ethtool_ops = {
1601 .get_settings = ql_get_settings,
1602 .get_drvinfo = ql_get_drvinfo,
1603 .get_perm_addr = ethtool_op_get_perm_addr,
1604 .get_link = ethtool_op_get_link,
1605 .get_msglevel = ql_get_msglevel,
1606 .set_msglevel = ql_set_msglevel,
1607 };
1608
1609 static int ql_populate_free_queue(struct ql3_adapter *qdev)
1610 {
1611 struct ql_rcv_buf_cb *lrg_buf_cb = qdev->lrg_buf_free_head;
1612 u64 map;
1613
1614 while (lrg_buf_cb) {
1615 if (!lrg_buf_cb->skb) {
1616 lrg_buf_cb->skb = dev_alloc_skb(qdev->lrg_buffer_len);
1617 if (unlikely(!lrg_buf_cb->skb)) {
1618 printk(KERN_DEBUG PFX
1619 "%s: Failed dev_alloc_skb().\n",
1620 qdev->ndev->name);
1621 break;
1622 } else {
1623 /*
1624 * We save some space to copy the ethhdr from
1625 * first buffer
1626 */
1627 skb_reserve(lrg_buf_cb->skb, QL_HEADER_SPACE);
1628 map = pci_map_single(qdev->pdev,
1629 lrg_buf_cb->skb->data,
1630 qdev->lrg_buffer_len -
1631 QL_HEADER_SPACE,
1632 PCI_DMA_FROMDEVICE);
1633 lrg_buf_cb->buf_phy_addr_low =
1634 cpu_to_le32(LS_64BITS(map));
1635 lrg_buf_cb->buf_phy_addr_high =
1636 cpu_to_le32(MS_64BITS(map));
1637 pci_unmap_addr_set(lrg_buf_cb, mapaddr, map);
1638 pci_unmap_len_set(lrg_buf_cb, maplen,
1639 qdev->lrg_buffer_len -
1640 QL_HEADER_SPACE);
1641 --qdev->lrg_buf_skb_check;
1642 if (!qdev->lrg_buf_skb_check)
1643 return 1;
1644 }
1645 }
1646 lrg_buf_cb = lrg_buf_cb->next;
1647 }
1648 return 0;
1649 }
1650
1651 /*
1652 * Caller holds hw_lock.
1653 */
1654 static void ql_update_lrg_bufq_prod_index(struct ql3_adapter *qdev)
1655 {
1656 struct bufq_addr_element *lrg_buf_q_ele;
1657 int i;
1658 struct ql_rcv_buf_cb *lrg_buf_cb;
1659 struct ql3xxx_port_registers __iomem *port_regs = qdev->mem_map_registers;
1660
1661 if ((qdev->lrg_buf_free_count >= 8)
1662 && (qdev->lrg_buf_release_cnt >= 16)) {
1663
1664 if (qdev->lrg_buf_skb_check)
1665 if (!ql_populate_free_queue(qdev))
1666 return;
1667
1668 lrg_buf_q_ele = qdev->lrg_buf_next_free;
1669
1670 while ((qdev->lrg_buf_release_cnt >= 16)
1671 && (qdev->lrg_buf_free_count >= 8)) {
1672
1673 for (i = 0; i < 8; i++) {
1674 lrg_buf_cb =
1675 ql_get_from_lrg_buf_free_list(qdev);
1676 lrg_buf_q_ele->addr_high =
1677 lrg_buf_cb->buf_phy_addr_high;
1678 lrg_buf_q_ele->addr_low =
1679 lrg_buf_cb->buf_phy_addr_low;
1680 lrg_buf_q_ele++;
1681
1682 qdev->lrg_buf_release_cnt--;
1683 }
1684
1685 qdev->lrg_buf_q_producer_index++;
1686
1687 if (qdev->lrg_buf_q_producer_index == NUM_LBUFQ_ENTRIES)
1688 qdev->lrg_buf_q_producer_index = 0;
1689
1690 if (qdev->lrg_buf_q_producer_index ==
1691 (NUM_LBUFQ_ENTRIES - 1)) {
1692 lrg_buf_q_ele = qdev->lrg_buf_q_virt_addr;
1693 }
1694 }
1695
1696 qdev->lrg_buf_next_free = lrg_buf_q_ele;
1697
1698 ql_write_common_reg(qdev,
1699 &port_regs->CommonRegs.
1700 rxLargeQProducerIndex,
1701 qdev->lrg_buf_q_producer_index);
1702 }
1703 }
1704
1705 static void ql_process_mac_tx_intr(struct ql3_adapter *qdev,
1706 struct ob_mac_iocb_rsp *mac_rsp)
1707 {
1708 struct ql_tx_buf_cb *tx_cb;
1709
1710 tx_cb = &qdev->tx_buf[mac_rsp->transaction_id];
1711 pci_unmap_single(qdev->pdev,
1712 pci_unmap_addr(tx_cb, mapaddr),
1713 pci_unmap_len(tx_cb, maplen), PCI_DMA_TODEVICE);
1714 dev_kfree_skb_irq(tx_cb->skb);
1715 qdev->stats.tx_packets++;
1716 qdev->stats.tx_bytes += tx_cb->skb->len;
1717 tx_cb->skb = NULL;
1718 atomic_inc(&qdev->tx_count);
1719 }
1720
1721 static void ql_process_mac_rx_intr(struct ql3_adapter *qdev,
1722 struct ib_mac_iocb_rsp *ib_mac_rsp_ptr)
1723 {
1724 long int offset;
1725 u32 lrg_buf_phy_addr_low = 0;
1726 struct ql_rcv_buf_cb *lrg_buf_cb1 = NULL;
1727 struct ql_rcv_buf_cb *lrg_buf_cb2 = NULL;
1728 u32 *curr_ial_ptr;
1729 struct sk_buff *skb;
1730 u16 length = le16_to_cpu(ib_mac_rsp_ptr->length);
1731
1732 /*
1733 * Get the inbound address list (small buffer).
1734 */
1735 offset = qdev->small_buf_index * QL_SMALL_BUFFER_SIZE;
1736 if (++qdev->small_buf_index == NUM_SMALL_BUFFERS)
1737 qdev->small_buf_index = 0;
1738
1739 curr_ial_ptr = (u32 *) (qdev->small_buf_virt_addr + offset);
1740 qdev->last_rsp_offset = qdev->small_buf_phy_addr_low + offset;
1741 qdev->small_buf_release_cnt++;
1742
1743 /* start of first buffer */
1744 lrg_buf_phy_addr_low = le32_to_cpu(*curr_ial_ptr);
1745 lrg_buf_cb1 = &qdev->lrg_buf[qdev->lrg_buf_index];
1746 qdev->lrg_buf_release_cnt++;
1747 if (++qdev->lrg_buf_index == NUM_LARGE_BUFFERS)
1748 qdev->lrg_buf_index = 0;
1749 curr_ial_ptr++; /* 64-bit pointers require two incs. */
1750 curr_ial_ptr++;
1751
1752 /* start of second buffer */
1753 lrg_buf_phy_addr_low = le32_to_cpu(*curr_ial_ptr);
1754 lrg_buf_cb2 = &qdev->lrg_buf[qdev->lrg_buf_index];
1755
1756 /*
1757 * Second buffer gets sent up the stack.
1758 */
1759 qdev->lrg_buf_release_cnt++;
1760 if (++qdev->lrg_buf_index == NUM_LARGE_BUFFERS)
1761 qdev->lrg_buf_index = 0;
1762 skb = lrg_buf_cb2->skb;
1763
1764 qdev->stats.rx_packets++;
1765 qdev->stats.rx_bytes += length;
1766
1767 skb_put(skb, length);
1768 pci_unmap_single(qdev->pdev,
1769 pci_unmap_addr(lrg_buf_cb2, mapaddr),
1770 pci_unmap_len(lrg_buf_cb2, maplen),
1771 PCI_DMA_FROMDEVICE);
1772 prefetch(skb->data);
1773 skb->dev = qdev->ndev;
1774 skb->ip_summed = CHECKSUM_NONE;
1775 skb->protocol = eth_type_trans(skb, qdev->ndev);
1776
1777 netif_receive_skb(skb);
1778 qdev->ndev->last_rx = jiffies;
1779 lrg_buf_cb2->skb = NULL;
1780
1781 ql_release_to_lrg_buf_free_list(qdev, lrg_buf_cb1);
1782 ql_release_to_lrg_buf_free_list(qdev, lrg_buf_cb2);
1783 }
1784
1785 static void ql_process_macip_rx_intr(struct ql3_adapter *qdev,
1786 struct ib_ip_iocb_rsp *ib_ip_rsp_ptr)
1787 {
1788 long int offset;
1789 u32 lrg_buf_phy_addr_low = 0;
1790 struct ql_rcv_buf_cb *lrg_buf_cb1 = NULL;
1791 struct ql_rcv_buf_cb *lrg_buf_cb2 = NULL;
1792 u32 *curr_ial_ptr;
1793 struct sk_buff *skb1, *skb2;
1794 struct net_device *ndev = qdev->ndev;
1795 u16 length = le16_to_cpu(ib_ip_rsp_ptr->length);
1796 u16 size = 0;
1797
1798 /*
1799 * Get the inbound address list (small buffer).
1800 */
1801
1802 offset = qdev->small_buf_index * QL_SMALL_BUFFER_SIZE;
1803 if (++qdev->small_buf_index == NUM_SMALL_BUFFERS)
1804 qdev->small_buf_index = 0;
1805 curr_ial_ptr = (u32 *) (qdev->small_buf_virt_addr + offset);
1806 qdev->last_rsp_offset = qdev->small_buf_phy_addr_low + offset;
1807 qdev->small_buf_release_cnt++;
1808
1809 /* start of first buffer */
1810 lrg_buf_phy_addr_low = le32_to_cpu(*curr_ial_ptr);
1811 lrg_buf_cb1 = &qdev->lrg_buf[qdev->lrg_buf_index];
1812
1813 qdev->lrg_buf_release_cnt++;
1814 if (++qdev->lrg_buf_index == NUM_LARGE_BUFFERS)
1815 qdev->lrg_buf_index = 0;
1816 skb1 = lrg_buf_cb1->skb;
1817 curr_ial_ptr++; /* 64-bit pointers require two incs. */
1818 curr_ial_ptr++;
1819
1820 /* start of second buffer */
1821 lrg_buf_phy_addr_low = le32_to_cpu(*curr_ial_ptr);
1822 lrg_buf_cb2 = &qdev->lrg_buf[qdev->lrg_buf_index];
1823 skb2 = lrg_buf_cb2->skb;
1824 qdev->lrg_buf_release_cnt++;
1825 if (++qdev->lrg_buf_index == NUM_LARGE_BUFFERS)
1826 qdev->lrg_buf_index = 0;
1827
1828 qdev->stats.rx_packets++;
1829 qdev->stats.rx_bytes += length;
1830
1831 /*
1832 * Copy the ethhdr from first buffer to second. This
1833 * is necessary for IP completions.
1834 */
1835 if (*((u16 *) skb1->data) != 0xFFFF)
1836 size = VLAN_ETH_HLEN;
1837 else
1838 size = ETH_HLEN;
1839
1840 skb_put(skb2, length); /* Just the second buffer length here. */
1841 pci_unmap_single(qdev->pdev,
1842 pci_unmap_addr(lrg_buf_cb2, mapaddr),
1843 pci_unmap_len(lrg_buf_cb2, maplen),
1844 PCI_DMA_FROMDEVICE);
1845 prefetch(skb2->data);
1846
1847 memcpy(skb_push(skb2, size), skb1->data + VLAN_ID_LEN, size);
1848 skb2->dev = qdev->ndev;
1849 skb2->ip_summed = CHECKSUM_NONE;
1850 skb2->protocol = eth_type_trans(skb2, qdev->ndev);
1851
1852 netif_receive_skb(skb2);
1853 ndev->last_rx = jiffies;
1854 lrg_buf_cb2->skb = NULL;
1855
1856 ql_release_to_lrg_buf_free_list(qdev, lrg_buf_cb1);
1857 ql_release_to_lrg_buf_free_list(qdev, lrg_buf_cb2);
1858 }
1859
1860 static int ql_tx_rx_clean(struct ql3_adapter *qdev,
1861 int *tx_cleaned, int *rx_cleaned, int work_to_do)
1862 {
1863 struct ql3xxx_port_registers __iomem *port_regs = qdev->mem_map_registers;
1864 struct net_rsp_iocb *net_rsp;
1865 struct net_device *ndev = qdev->ndev;
1866 unsigned long hw_flags;
1867
1868 /* While there are entries in the completion queue. */
1869 while ((cpu_to_le32(*(qdev->prsp_producer_index)) !=
1870 qdev->rsp_consumer_index) && (*rx_cleaned < work_to_do)) {
1871
1872 net_rsp = qdev->rsp_current;
1873 switch (net_rsp->opcode) {
1874
1875 case OPCODE_OB_MAC_IOCB_FN0:
1876 case OPCODE_OB_MAC_IOCB_FN2:
1877 ql_process_mac_tx_intr(qdev, (struct ob_mac_iocb_rsp *)
1878 net_rsp);
1879 (*tx_cleaned)++;
1880 break;
1881
1882 case OPCODE_IB_MAC_IOCB:
1883 ql_process_mac_rx_intr(qdev, (struct ib_mac_iocb_rsp *)
1884 net_rsp);
1885 (*rx_cleaned)++;
1886 break;
1887
1888 case OPCODE_IB_IP_IOCB:
1889 ql_process_macip_rx_intr(qdev, (struct ib_ip_iocb_rsp *)
1890 net_rsp);
1891 (*rx_cleaned)++;
1892 break;
1893 default:
1894 {
1895 u32 *tmp = (u32 *) net_rsp;
1896 printk(KERN_ERR PFX
1897 "%s: Hit default case, not "
1898 "handled!\n"
1899 " dropping the packet, opcode = "
1900 "%x.\n",
1901 ndev->name, net_rsp->opcode);
1902 printk(KERN_ERR PFX
1903 "0x%08lx 0x%08lx 0x%08lx 0x%08lx \n",
1904 (unsigned long int)tmp[0],
1905 (unsigned long int)tmp[1],
1906 (unsigned long int)tmp[2],
1907 (unsigned long int)tmp[3]);
1908 }
1909 }
1910
1911 qdev->rsp_consumer_index++;
1912
1913 if (qdev->rsp_consumer_index == NUM_RSP_Q_ENTRIES) {
1914 qdev->rsp_consumer_index = 0;
1915 qdev->rsp_current = qdev->rsp_q_virt_addr;
1916 } else {
1917 qdev->rsp_current++;
1918 }
1919 }
1920
1921 spin_lock_irqsave(&qdev->hw_lock, hw_flags);
1922
1923 ql_update_lrg_bufq_prod_index(qdev);
1924
1925 if (qdev->small_buf_release_cnt >= 16) {
1926 while (qdev->small_buf_release_cnt >= 16) {
1927 qdev->small_buf_q_producer_index++;
1928
1929 if (qdev->small_buf_q_producer_index ==
1930 NUM_SBUFQ_ENTRIES)
1931 qdev->small_buf_q_producer_index = 0;
1932 qdev->small_buf_release_cnt -= 8;
1933 }
1934
1935 ql_write_common_reg(qdev,
1936 &port_regs->CommonRegs.
1937 rxSmallQProducerIndex,
1938 qdev->small_buf_q_producer_index);
1939 }
1940
1941 ql_write_common_reg(qdev,
1942 &port_regs->CommonRegs.rspQConsumerIndex,
1943 qdev->rsp_consumer_index);
1944 spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
1945
1946 if (unlikely(netif_queue_stopped(qdev->ndev))) {
1947 if (netif_queue_stopped(qdev->ndev) &&
1948 (atomic_read(&qdev->tx_count) > (NUM_REQ_Q_ENTRIES / 4)))
1949 netif_wake_queue(qdev->ndev);
1950 }
1951
1952 return *tx_cleaned + *rx_cleaned;
1953 }
1954
1955 static int ql_poll(struct net_device *ndev, int *budget)
1956 {
1957 struct ql3_adapter *qdev = netdev_priv(ndev);
1958 int work_to_do = min(*budget, ndev->quota);
1959 int rx_cleaned = 0, tx_cleaned = 0;
1960
1961 if (!netif_carrier_ok(ndev))
1962 goto quit_polling;
1963
1964 ql_tx_rx_clean(qdev, &tx_cleaned, &rx_cleaned, work_to_do);
1965 *budget -= rx_cleaned;
1966 ndev->quota -= rx_cleaned;
1967
1968 if ((!tx_cleaned && !rx_cleaned) || !netif_running(ndev)) {
1969 quit_polling:
1970 netif_rx_complete(ndev);
1971 ql_enable_interrupts(qdev);
1972 return 0;
1973 }
1974 return 1;
1975 }
1976
1977 static irqreturn_t ql3xxx_isr(int irq, void *dev_id)
1978 {
1979
1980 struct net_device *ndev = dev_id;
1981 struct ql3_adapter *qdev = netdev_priv(ndev);
1982 struct ql3xxx_port_registers __iomem *port_regs = qdev->mem_map_registers;
1983 u32 value;
1984 int handled = 1;
1985 u32 var;
1986
1987 port_regs = qdev->mem_map_registers;
1988
1989 value =
1990 ql_read_common_reg_l(qdev, &port_regs->CommonRegs.ispControlStatus);
1991
1992 if (value & (ISP_CONTROL_FE | ISP_CONTROL_RI)) {
1993 spin_lock(&qdev->adapter_lock);
1994 netif_stop_queue(qdev->ndev);
1995 netif_carrier_off(qdev->ndev);
1996 ql_disable_interrupts(qdev);
1997 qdev->port_link_state = LS_DOWN;
1998 set_bit(QL_RESET_ACTIVE,&qdev->flags) ;
1999
2000 if (value & ISP_CONTROL_FE) {
2001 /*
2002 * Chip Fatal Error.
2003 */
2004 var =
2005 ql_read_page0_reg_l(qdev,
2006 &port_regs->PortFatalErrStatus);
2007 printk(KERN_WARNING PFX
2008 "%s: Resetting chip. PortFatalErrStatus "
2009 "register = 0x%x\n", ndev->name, var);
2010 set_bit(QL_RESET_START,&qdev->flags) ;
2011 } else {
2012 /*
2013 * Soft Reset Requested.
2014 */
2015 set_bit(QL_RESET_PER_SCSI,&qdev->flags) ;
2016 printk(KERN_ERR PFX
2017 "%s: Another function issued a reset to the "
2018 "chip. ISR value = %x.\n", ndev->name, value);
2019 }
2020 queue_delayed_work(qdev->workqueue, &qdev->reset_work, 0);
2021 spin_unlock(&qdev->adapter_lock);
2022 } else if (value & ISP_IMR_DISABLE_CMPL_INT) {
2023 ql_disable_interrupts(qdev);
2024 if (likely(netif_rx_schedule_prep(ndev)))
2025 __netif_rx_schedule(ndev);
2026 else
2027 ql_enable_interrupts(qdev);
2028 } else {
2029 return IRQ_NONE;
2030 }
2031
2032 return IRQ_RETVAL(handled);
2033 }
2034
2035 static int ql3xxx_send(struct sk_buff *skb, struct net_device *ndev)
2036 {
2037 struct ql3_adapter *qdev = (struct ql3_adapter *)netdev_priv(ndev);
2038 struct ql3xxx_port_registers __iomem *port_regs = qdev->mem_map_registers;
2039 struct ql_tx_buf_cb *tx_cb;
2040 struct ob_mac_iocb_req *mac_iocb_ptr;
2041 u64 map;
2042
2043 if (unlikely(atomic_read(&qdev->tx_count) < 2)) {
2044 if (!netif_queue_stopped(ndev))
2045 netif_stop_queue(ndev);
2046 return NETDEV_TX_BUSY;
2047 }
2048 tx_cb = &qdev->tx_buf[qdev->req_producer_index] ;
2049 mac_iocb_ptr = tx_cb->queue_entry;
2050 memset((void *)mac_iocb_ptr, 0, sizeof(struct ob_mac_iocb_req));
2051 mac_iocb_ptr->opcode = qdev->mac_ob_opcode;
2052 mac_iocb_ptr->flags |= qdev->mb_bit_mask;
2053 mac_iocb_ptr->transaction_id = qdev->req_producer_index;
2054 mac_iocb_ptr->data_len = cpu_to_le16((u16) skb->len);
2055 tx_cb->skb = skb;
2056 map = pci_map_single(qdev->pdev, skb->data, skb->len, PCI_DMA_TODEVICE);
2057 mac_iocb_ptr->buf_addr0_low = cpu_to_le32(LS_64BITS(map));
2058 mac_iocb_ptr->buf_addr0_high = cpu_to_le32(MS_64BITS(map));
2059 mac_iocb_ptr->buf_0_len = cpu_to_le32(skb->len | OB_MAC_IOCB_REQ_E);
2060 pci_unmap_addr_set(tx_cb, mapaddr, map);
2061 pci_unmap_len_set(tx_cb, maplen, skb->len);
2062 atomic_dec(&qdev->tx_count);
2063
2064 qdev->req_producer_index++;
2065 if (qdev->req_producer_index == NUM_REQ_Q_ENTRIES)
2066 qdev->req_producer_index = 0;
2067 wmb();
2068 ql_write_common_reg_l(qdev,
2069 &port_regs->CommonRegs.reqQProducerIndex,
2070 qdev->req_producer_index);
2071
2072 ndev->trans_start = jiffies;
2073 if (netif_msg_tx_queued(qdev))
2074 printk(KERN_DEBUG PFX "%s: tx queued, slot %d, len %d\n",
2075 ndev->name, qdev->req_producer_index, skb->len);
2076
2077 return NETDEV_TX_OK;
2078 }
2079 static int ql_alloc_net_req_rsp_queues(struct ql3_adapter *qdev)
2080 {
2081 qdev->req_q_size =
2082 (u32) (NUM_REQ_Q_ENTRIES * sizeof(struct ob_mac_iocb_req));
2083
2084 qdev->req_q_virt_addr =
2085 pci_alloc_consistent(qdev->pdev,
2086 (size_t) qdev->req_q_size,
2087 &qdev->req_q_phy_addr);
2088
2089 if ((qdev->req_q_virt_addr == NULL) ||
2090 LS_64BITS(qdev->req_q_phy_addr) & (qdev->req_q_size - 1)) {
2091 printk(KERN_ERR PFX "%s: reqQ failed.\n",
2092 qdev->ndev->name);
2093 return -ENOMEM;
2094 }
2095
2096 qdev->rsp_q_size = NUM_RSP_Q_ENTRIES * sizeof(struct net_rsp_iocb);
2097
2098 qdev->rsp_q_virt_addr =
2099 pci_alloc_consistent(qdev->pdev,
2100 (size_t) qdev->rsp_q_size,
2101 &qdev->rsp_q_phy_addr);
2102
2103 if ((qdev->rsp_q_virt_addr == NULL) ||
2104 LS_64BITS(qdev->rsp_q_phy_addr) & (qdev->rsp_q_size - 1)) {
2105 printk(KERN_ERR PFX
2106 "%s: rspQ allocation failed\n",
2107 qdev->ndev->name);
2108 pci_free_consistent(qdev->pdev, (size_t) qdev->req_q_size,
2109 qdev->req_q_virt_addr,
2110 qdev->req_q_phy_addr);
2111 return -ENOMEM;
2112 }
2113
2114 set_bit(QL_ALLOC_REQ_RSP_Q_DONE,&qdev->flags);
2115
2116 return 0;
2117 }
2118
2119 static void ql_free_net_req_rsp_queues(struct ql3_adapter *qdev)
2120 {
2121 if (!test_bit(QL_ALLOC_REQ_RSP_Q_DONE,&qdev->flags)) {
2122 printk(KERN_INFO PFX
2123 "%s: Already done.\n", qdev->ndev->name);
2124 return;
2125 }
2126
2127 pci_free_consistent(qdev->pdev,
2128 qdev->req_q_size,
2129 qdev->req_q_virt_addr, qdev->req_q_phy_addr);
2130
2131 qdev->req_q_virt_addr = NULL;
2132
2133 pci_free_consistent(qdev->pdev,
2134 qdev->rsp_q_size,
2135 qdev->rsp_q_virt_addr, qdev->rsp_q_phy_addr);
2136
2137 qdev->rsp_q_virt_addr = NULL;
2138
2139 clear_bit(QL_ALLOC_REQ_RSP_Q_DONE,&qdev->flags);
2140 }
2141
2142 static int ql_alloc_buffer_queues(struct ql3_adapter *qdev)
2143 {
2144 /* Create Large Buffer Queue */
2145 qdev->lrg_buf_q_size =
2146 NUM_LBUFQ_ENTRIES * sizeof(struct lrg_buf_q_entry);
2147 if (qdev->lrg_buf_q_size < PAGE_SIZE)
2148 qdev->lrg_buf_q_alloc_size = PAGE_SIZE;
2149 else
2150 qdev->lrg_buf_q_alloc_size = qdev->lrg_buf_q_size * 2;
2151
2152 qdev->lrg_buf_q_alloc_virt_addr =
2153 pci_alloc_consistent(qdev->pdev,
2154 qdev->lrg_buf_q_alloc_size,
2155 &qdev->lrg_buf_q_alloc_phy_addr);
2156
2157 if (qdev->lrg_buf_q_alloc_virt_addr == NULL) {
2158 printk(KERN_ERR PFX
2159 "%s: lBufQ failed\n", qdev->ndev->name);
2160 return -ENOMEM;
2161 }
2162 qdev->lrg_buf_q_virt_addr = qdev->lrg_buf_q_alloc_virt_addr;
2163 qdev->lrg_buf_q_phy_addr = qdev->lrg_buf_q_alloc_phy_addr;
2164
2165 /* Create Small Buffer Queue */
2166 qdev->small_buf_q_size =
2167 NUM_SBUFQ_ENTRIES * sizeof(struct lrg_buf_q_entry);
2168 if (qdev->small_buf_q_size < PAGE_SIZE)
2169 qdev->small_buf_q_alloc_size = PAGE_SIZE;
2170 else
2171 qdev->small_buf_q_alloc_size = qdev->small_buf_q_size * 2;
2172
2173 qdev->small_buf_q_alloc_virt_addr =
2174 pci_alloc_consistent(qdev->pdev,
2175 qdev->small_buf_q_alloc_size,
2176 &qdev->small_buf_q_alloc_phy_addr);
2177
2178 if (qdev->small_buf_q_alloc_virt_addr == NULL) {
2179 printk(KERN_ERR PFX
2180 "%s: Small Buffer Queue allocation failed.\n",
2181 qdev->ndev->name);
2182 pci_free_consistent(qdev->pdev, qdev->lrg_buf_q_alloc_size,
2183 qdev->lrg_buf_q_alloc_virt_addr,
2184 qdev->lrg_buf_q_alloc_phy_addr);
2185 return -ENOMEM;
2186 }
2187
2188 qdev->small_buf_q_virt_addr = qdev->small_buf_q_alloc_virt_addr;
2189 qdev->small_buf_q_phy_addr = qdev->small_buf_q_alloc_phy_addr;
2190 set_bit(QL_ALLOC_BUFQS_DONE,&qdev->flags);
2191 return 0;
2192 }
2193
2194 static void ql_free_buffer_queues(struct ql3_adapter *qdev)
2195 {
2196 if (!test_bit(QL_ALLOC_BUFQS_DONE,&qdev->flags)) {
2197 printk(KERN_INFO PFX
2198 "%s: Already done.\n", qdev->ndev->name);
2199 return;
2200 }
2201
2202 pci_free_consistent(qdev->pdev,
2203 qdev->lrg_buf_q_alloc_size,
2204 qdev->lrg_buf_q_alloc_virt_addr,
2205 qdev->lrg_buf_q_alloc_phy_addr);
2206
2207 qdev->lrg_buf_q_virt_addr = NULL;
2208
2209 pci_free_consistent(qdev->pdev,
2210 qdev->small_buf_q_alloc_size,
2211 qdev->small_buf_q_alloc_virt_addr,
2212 qdev->small_buf_q_alloc_phy_addr);
2213
2214 qdev->small_buf_q_virt_addr = NULL;
2215
2216 clear_bit(QL_ALLOC_BUFQS_DONE,&qdev->flags);
2217 }
2218
2219 static int ql_alloc_small_buffers(struct ql3_adapter *qdev)
2220 {
2221 int i;
2222 struct bufq_addr_element *small_buf_q_entry;
2223
2224 /* Currently we allocate on one of memory and use it for smallbuffers */
2225 qdev->small_buf_total_size =
2226 (QL_ADDR_ELE_PER_BUFQ_ENTRY * NUM_SBUFQ_ENTRIES *
2227 QL_SMALL_BUFFER_SIZE);
2228
2229 qdev->small_buf_virt_addr =
2230 pci_alloc_consistent(qdev->pdev,
2231 qdev->small_buf_total_size,
2232 &qdev->small_buf_phy_addr);
2233
2234 if (qdev->small_buf_virt_addr == NULL) {
2235 printk(KERN_ERR PFX
2236 "%s: Failed to get small buffer memory.\n",
2237 qdev->ndev->name);
2238 return -ENOMEM;
2239 }
2240
2241 qdev->small_buf_phy_addr_low = LS_64BITS(qdev->small_buf_phy_addr);
2242 qdev->small_buf_phy_addr_high = MS_64BITS(qdev->small_buf_phy_addr);
2243
2244 small_buf_q_entry = qdev->small_buf_q_virt_addr;
2245
2246 qdev->last_rsp_offset = qdev->small_buf_phy_addr_low;
2247
2248 /* Initialize the small buffer queue. */
2249 for (i = 0; i < (QL_ADDR_ELE_PER_BUFQ_ENTRY * NUM_SBUFQ_ENTRIES); i++) {
2250 small_buf_q_entry->addr_high =
2251 cpu_to_le32(qdev->small_buf_phy_addr_high);
2252 small_buf_q_entry->addr_low =
2253 cpu_to_le32(qdev->small_buf_phy_addr_low +
2254 (i * QL_SMALL_BUFFER_SIZE));
2255 small_buf_q_entry++;
2256 }
2257 qdev->small_buf_index = 0;
2258 set_bit(QL_ALLOC_SMALL_BUF_DONE,&qdev->flags);
2259 return 0;
2260 }
2261
2262 static void ql_free_small_buffers(struct ql3_adapter *qdev)
2263 {
2264 if (!test_bit(QL_ALLOC_SMALL_BUF_DONE,&qdev->flags)) {
2265 printk(KERN_INFO PFX
2266 "%s: Already done.\n", qdev->ndev->name);
2267 return;
2268 }
2269 if (qdev->small_buf_virt_addr != NULL) {
2270 pci_free_consistent(qdev->pdev,
2271 qdev->small_buf_total_size,
2272 qdev->small_buf_virt_addr,
2273 qdev->small_buf_phy_addr);
2274
2275 qdev->small_buf_virt_addr = NULL;
2276 }
2277 }
2278
2279 static void ql_free_large_buffers(struct ql3_adapter *qdev)
2280 {
2281 int i = 0;
2282 struct ql_rcv_buf_cb *lrg_buf_cb;
2283
2284 for (i = 0; i < NUM_LARGE_BUFFERS; i++) {
2285 lrg_buf_cb = &qdev->lrg_buf[i];
2286 if (lrg_buf_cb->skb) {
2287 dev_kfree_skb(lrg_buf_cb->skb);
2288 pci_unmap_single(qdev->pdev,
2289 pci_unmap_addr(lrg_buf_cb, mapaddr),
2290 pci_unmap_len(lrg_buf_cb, maplen),
2291 PCI_DMA_FROMDEVICE);
2292 memset(lrg_buf_cb, 0, sizeof(struct ql_rcv_buf_cb));
2293 } else {
2294 break;
2295 }
2296 }
2297 }
2298
2299 static void ql_init_large_buffers(struct ql3_adapter *qdev)
2300 {
2301 int i;
2302 struct ql_rcv_buf_cb *lrg_buf_cb;
2303 struct bufq_addr_element *buf_addr_ele = qdev->lrg_buf_q_virt_addr;
2304
2305 for (i = 0; i < NUM_LARGE_BUFFERS; i++) {
2306 lrg_buf_cb = &qdev->lrg_buf[i];
2307 buf_addr_ele->addr_high = lrg_buf_cb->buf_phy_addr_high;
2308 buf_addr_ele->addr_low = lrg_buf_cb->buf_phy_addr_low;
2309 buf_addr_ele++;
2310 }
2311 qdev->lrg_buf_index = 0;
2312 qdev->lrg_buf_skb_check = 0;
2313 }
2314
2315 static int ql_alloc_large_buffers(struct ql3_adapter *qdev)
2316 {
2317 int i;
2318 struct ql_rcv_buf_cb *lrg_buf_cb;
2319 struct sk_buff *skb;
2320 u64 map;
2321
2322 for (i = 0; i < NUM_LARGE_BUFFERS; i++) {
2323 skb = dev_alloc_skb(qdev->lrg_buffer_len);
2324 if (unlikely(!skb)) {
2325 /* Better luck next round */
2326 printk(KERN_ERR PFX
2327 "%s: large buff alloc failed, "
2328 "for %d bytes at index %d.\n",
2329 qdev->ndev->name,
2330 qdev->lrg_buffer_len * 2, i);
2331 ql_free_large_buffers(qdev);
2332 return -ENOMEM;
2333 } else {
2334
2335 lrg_buf_cb = &qdev->lrg_buf[i];
2336 memset(lrg_buf_cb, 0, sizeof(struct ql_rcv_buf_cb));
2337 lrg_buf_cb->index = i;
2338 lrg_buf_cb->skb = skb;
2339 /*
2340 * We save some space to copy the ethhdr from first
2341 * buffer
2342 */
2343 skb_reserve(skb, QL_HEADER_SPACE);
2344 map = pci_map_single(qdev->pdev,
2345 skb->data,
2346 qdev->lrg_buffer_len -
2347 QL_HEADER_SPACE,
2348 PCI_DMA_FROMDEVICE);
2349 pci_unmap_addr_set(lrg_buf_cb, mapaddr, map);
2350 pci_unmap_len_set(lrg_buf_cb, maplen,
2351 qdev->lrg_buffer_len -
2352 QL_HEADER_SPACE);
2353 lrg_buf_cb->buf_phy_addr_low =
2354 cpu_to_le32(LS_64BITS(map));
2355 lrg_buf_cb->buf_phy_addr_high =
2356 cpu_to_le32(MS_64BITS(map));
2357 }
2358 }
2359 return 0;
2360 }
2361
2362 static void ql_create_send_free_list(struct ql3_adapter *qdev)
2363 {
2364 struct ql_tx_buf_cb *tx_cb;
2365 int i;
2366 struct ob_mac_iocb_req *req_q_curr =
2367 qdev->req_q_virt_addr;
2368
2369 /* Create free list of transmit buffers */
2370 for (i = 0; i < NUM_REQ_Q_ENTRIES; i++) {
2371 tx_cb = &qdev->tx_buf[i];
2372 tx_cb->skb = NULL;
2373 tx_cb->queue_entry = req_q_curr;
2374 req_q_curr++;
2375 }
2376 }
2377
2378 static int ql_alloc_mem_resources(struct ql3_adapter *qdev)
2379 {
2380 if (qdev->ndev->mtu == NORMAL_MTU_SIZE)
2381 qdev->lrg_buffer_len = NORMAL_MTU_SIZE;
2382 else if (qdev->ndev->mtu == JUMBO_MTU_SIZE) {
2383 qdev->lrg_buffer_len = JUMBO_MTU_SIZE;
2384 } else {
2385 printk(KERN_ERR PFX
2386 "%s: Invalid mtu size. Only 1500 and 9000 are accepted.\n",
2387 qdev->ndev->name);
2388 return -ENOMEM;
2389 }
2390 qdev->lrg_buffer_len += VLAN_ETH_HLEN + VLAN_ID_LEN + QL_HEADER_SPACE;
2391 qdev->max_frame_size =
2392 (qdev->lrg_buffer_len - QL_HEADER_SPACE) + ETHERNET_CRC_SIZE;
2393
2394 /*
2395 * First allocate a page of shared memory and use it for shadow
2396 * locations of Network Request Queue Consumer Address Register and
2397 * Network Completion Queue Producer Index Register
2398 */
2399 qdev->shadow_reg_virt_addr =
2400 pci_alloc_consistent(qdev->pdev,
2401 PAGE_SIZE, &qdev->shadow_reg_phy_addr);
2402
2403 if (qdev->shadow_reg_virt_addr != NULL) {
2404 qdev->preq_consumer_index = (u16 *) qdev->shadow_reg_virt_addr;
2405 qdev->req_consumer_index_phy_addr_high =
2406 MS_64BITS(qdev->shadow_reg_phy_addr);
2407 qdev->req_consumer_index_phy_addr_low =
2408 LS_64BITS(qdev->shadow_reg_phy_addr);
2409
2410 qdev->prsp_producer_index =
2411 (u32 *) (((u8 *) qdev->preq_consumer_index) + 8);
2412 qdev->rsp_producer_index_phy_addr_high =
2413 qdev->req_consumer_index_phy_addr_high;
2414 qdev->rsp_producer_index_phy_addr_low =
2415 qdev->req_consumer_index_phy_addr_low + 8;
2416 } else {
2417 printk(KERN_ERR PFX
2418 "%s: shadowReg Alloc failed.\n", qdev->ndev->name);
2419 return -ENOMEM;
2420 }
2421
2422 if (ql_alloc_net_req_rsp_queues(qdev) != 0) {
2423 printk(KERN_ERR PFX
2424 "%s: ql_alloc_net_req_rsp_queues failed.\n",
2425 qdev->ndev->name);
2426 goto err_req_rsp;
2427 }
2428
2429 if (ql_alloc_buffer_queues(qdev) != 0) {
2430 printk(KERN_ERR PFX
2431 "%s: ql_alloc_buffer_queues failed.\n",
2432 qdev->ndev->name);
2433 goto err_buffer_queues;
2434 }
2435
2436 if (ql_alloc_small_buffers(qdev) != 0) {
2437 printk(KERN_ERR PFX
2438 "%s: ql_alloc_small_buffers failed\n", qdev->ndev->name);
2439 goto err_small_buffers;
2440 }
2441
2442 if (ql_alloc_large_buffers(qdev) != 0) {
2443 printk(KERN_ERR PFX
2444 "%s: ql_alloc_large_buffers failed\n", qdev->ndev->name);
2445 goto err_small_buffers;
2446 }
2447
2448 /* Initialize the large buffer queue. */
2449 ql_init_large_buffers(qdev);
2450 ql_create_send_free_list(qdev);
2451
2452 qdev->rsp_current = qdev->rsp_q_virt_addr;
2453
2454 return 0;
2455
2456 err_small_buffers:
2457 ql_free_buffer_queues(qdev);
2458 err_buffer_queues:
2459 ql_free_net_req_rsp_queues(qdev);
2460 err_req_rsp:
2461 pci_free_consistent(qdev->pdev,
2462 PAGE_SIZE,
2463 qdev->shadow_reg_virt_addr,
2464 qdev->shadow_reg_phy_addr);
2465
2466 return -ENOMEM;
2467 }
2468
2469 static void ql_free_mem_resources(struct ql3_adapter *qdev)
2470 {
2471 ql_free_large_buffers(qdev);
2472 ql_free_small_buffers(qdev);
2473 ql_free_buffer_queues(qdev);
2474 ql_free_net_req_rsp_queues(qdev);
2475 if (qdev->shadow_reg_virt_addr != NULL) {
2476 pci_free_consistent(qdev->pdev,
2477 PAGE_SIZE,
2478 qdev->shadow_reg_virt_addr,
2479 qdev->shadow_reg_phy_addr);
2480 qdev->shadow_reg_virt_addr = NULL;
2481 }
2482 }
2483
2484 static int ql_init_misc_registers(struct ql3_adapter *qdev)
2485 {
2486 struct ql3xxx_local_ram_registers __iomem *local_ram =
2487 (void __iomem *)qdev->mem_map_registers;
2488
2489 if(ql_sem_spinlock(qdev, QL_DDR_RAM_SEM_MASK,
2490 (QL_RESOURCE_BITS_BASE_CODE | (qdev->mac_index) *
2491 2) << 4))
2492 return -1;
2493
2494 ql_write_page2_reg(qdev,
2495 &local_ram->bufletSize, qdev->nvram_data.bufletSize);
2496
2497 ql_write_page2_reg(qdev,
2498 &local_ram->maxBufletCount,
2499 qdev->nvram_data.bufletCount);
2500
2501 ql_write_page2_reg(qdev,
2502 &local_ram->freeBufletThresholdLow,
2503 (qdev->nvram_data.tcpWindowThreshold25 << 16) |
2504 (qdev->nvram_data.tcpWindowThreshold0));
2505
2506 ql_write_page2_reg(qdev,
2507 &local_ram->freeBufletThresholdHigh,
2508 qdev->nvram_data.tcpWindowThreshold50);
2509
2510 ql_write_page2_reg(qdev,
2511 &local_ram->ipHashTableBase,
2512 (qdev->nvram_data.ipHashTableBaseHi << 16) |
2513 qdev->nvram_data.ipHashTableBaseLo);
2514 ql_write_page2_reg(qdev,
2515 &local_ram->ipHashTableCount,
2516 qdev->nvram_data.ipHashTableSize);
2517 ql_write_page2_reg(qdev,
2518 &local_ram->tcpHashTableBase,
2519 (qdev->nvram_data.tcpHashTableBaseHi << 16) |
2520 qdev->nvram_data.tcpHashTableBaseLo);
2521 ql_write_page2_reg(qdev,
2522 &local_ram->tcpHashTableCount,
2523 qdev->nvram_data.tcpHashTableSize);
2524 ql_write_page2_reg(qdev,
2525 &local_ram->ncbBase,
2526 (qdev->nvram_data.ncbTableBaseHi << 16) |
2527 qdev->nvram_data.ncbTableBaseLo);
2528 ql_write_page2_reg(qdev,
2529 &local_ram->maxNcbCount,
2530 qdev->nvram_data.ncbTableSize);
2531 ql_write_page2_reg(qdev,
2532 &local_ram->drbBase,
2533 (qdev->nvram_data.drbTableBaseHi << 16) |
2534 qdev->nvram_data.drbTableBaseLo);
2535 ql_write_page2_reg(qdev,
2536 &local_ram->maxDrbCount,
2537 qdev->nvram_data.drbTableSize);
2538 ql_sem_unlock(qdev, QL_DDR_RAM_SEM_MASK);
2539 return 0;
2540 }
2541
2542 static int ql_adapter_initialize(struct ql3_adapter *qdev)
2543 {
2544 u32 value;
2545 struct ql3xxx_port_registers __iomem *port_regs = qdev->mem_map_registers;
2546 struct ql3xxx_host_memory_registers __iomem *hmem_regs =
2547 (void __iomem *)port_regs;
2548 u32 delay = 10;
2549 int status = 0;
2550
2551 if(ql_mii_setup(qdev))
2552 return -1;
2553
2554 /* Bring out PHY out of reset */
2555 ql_write_common_reg(qdev, &port_regs->CommonRegs.serialPortInterfaceReg,
2556 (ISP_SERIAL_PORT_IF_WE |
2557 (ISP_SERIAL_PORT_IF_WE << 16)));
2558
2559 qdev->port_link_state = LS_DOWN;
2560 netif_carrier_off(qdev->ndev);
2561
2562 /* V2 chip fix for ARS-39168. */
2563 ql_write_common_reg(qdev, &port_regs->CommonRegs.serialPortInterfaceReg,
2564 (ISP_SERIAL_PORT_IF_SDE |
2565 (ISP_SERIAL_PORT_IF_SDE << 16)));
2566
2567 /* Request Queue Registers */
2568 *((u32 *) (qdev->preq_consumer_index)) = 0;
2569 atomic_set(&qdev->tx_count,NUM_REQ_Q_ENTRIES);
2570 qdev->req_producer_index = 0;
2571
2572 ql_write_page1_reg(qdev,
2573 &hmem_regs->reqConsumerIndexAddrHigh,
2574 qdev->req_consumer_index_phy_addr_high);
2575 ql_write_page1_reg(qdev,
2576 &hmem_regs->reqConsumerIndexAddrLow,
2577 qdev->req_consumer_index_phy_addr_low);
2578
2579 ql_write_page1_reg(qdev,
2580 &hmem_regs->reqBaseAddrHigh,
2581 MS_64BITS(qdev->req_q_phy_addr));
2582 ql_write_page1_reg(qdev,
2583 &hmem_regs->reqBaseAddrLow,
2584 LS_64BITS(qdev->req_q_phy_addr));
2585 ql_write_page1_reg(qdev, &hmem_regs->reqLength, NUM_REQ_Q_ENTRIES);
2586
2587 /* Response Queue Registers */
2588 *((u16 *) (qdev->prsp_producer_index)) = 0;
2589 qdev->rsp_consumer_index = 0;
2590 qdev->rsp_current = qdev->rsp_q_virt_addr;
2591
2592 ql_write_page1_reg(qdev,
2593 &hmem_regs->rspProducerIndexAddrHigh,
2594 qdev->rsp_producer_index_phy_addr_high);
2595
2596 ql_write_page1_reg(qdev,
2597 &hmem_regs->rspProducerIndexAddrLow,
2598 qdev->rsp_producer_index_phy_addr_low);
2599
2600 ql_write_page1_reg(qdev,
2601 &hmem_regs->rspBaseAddrHigh,
2602 MS_64BITS(qdev->rsp_q_phy_addr));
2603
2604 ql_write_page1_reg(qdev,
2605 &hmem_regs->rspBaseAddrLow,
2606 LS_64BITS(qdev->rsp_q_phy_addr));
2607
2608 ql_write_page1_reg(qdev, &hmem_regs->rspLength, NUM_RSP_Q_ENTRIES);
2609
2610 /* Large Buffer Queue */
2611 ql_write_page1_reg(qdev,
2612 &hmem_regs->rxLargeQBaseAddrHigh,
2613 MS_64BITS(qdev->lrg_buf_q_phy_addr));
2614
2615 ql_write_page1_reg(qdev,
2616 &hmem_regs->rxLargeQBaseAddrLow,
2617 LS_64BITS(qdev->lrg_buf_q_phy_addr));
2618
2619 ql_write_page1_reg(qdev, &hmem_regs->rxLargeQLength, NUM_LBUFQ_ENTRIES);
2620
2621 ql_write_page1_reg(qdev,
2622 &hmem_regs->rxLargeBufferLength,
2623 qdev->lrg_buffer_len);
2624
2625 /* Small Buffer Queue */
2626 ql_write_page1_reg(qdev,
2627 &hmem_regs->rxSmallQBaseAddrHigh,
2628 MS_64BITS(qdev->small_buf_q_phy_addr));
2629
2630 ql_write_page1_reg(qdev,
2631 &hmem_regs->rxSmallQBaseAddrLow,
2632 LS_64BITS(qdev->small_buf_q_phy_addr));
2633
2634 ql_write_page1_reg(qdev, &hmem_regs->rxSmallQLength, NUM_SBUFQ_ENTRIES);
2635 ql_write_page1_reg(qdev,
2636 &hmem_regs->rxSmallBufferLength,
2637 QL_SMALL_BUFFER_SIZE);
2638
2639 qdev->small_buf_q_producer_index = NUM_SBUFQ_ENTRIES - 1;
2640 qdev->small_buf_release_cnt = 8;
2641 qdev->lrg_buf_q_producer_index = NUM_LBUFQ_ENTRIES - 1;
2642 qdev->lrg_buf_release_cnt = 8;
2643 qdev->lrg_buf_next_free =
2644 (struct bufq_addr_element *)qdev->lrg_buf_q_virt_addr;
2645 qdev->small_buf_index = 0;
2646 qdev->lrg_buf_index = 0;
2647 qdev->lrg_buf_free_count = 0;
2648 qdev->lrg_buf_free_head = NULL;
2649 qdev->lrg_buf_free_tail = NULL;
2650
2651 ql_write_common_reg(qdev,
2652 &port_regs->CommonRegs.
2653 rxSmallQProducerIndex,
2654 qdev->small_buf_q_producer_index);
2655 ql_write_common_reg(qdev,
2656 &port_regs->CommonRegs.
2657 rxLargeQProducerIndex,
2658 qdev->lrg_buf_q_producer_index);
2659
2660 /*
2661 * Find out if the chip has already been initialized. If it has, then
2662 * we skip some of the initialization.
2663 */
2664 clear_bit(QL_LINK_MASTER, &qdev->flags);
2665 value = ql_read_page0_reg(qdev, &port_regs->portStatus);
2666 if ((value & PORT_STATUS_IC) == 0) {
2667
2668 /* Chip has not been configured yet, so let it rip. */
2669 if(ql_init_misc_registers(qdev)) {
2670 status = -1;
2671 goto out;
2672 }
2673
2674 if (qdev->mac_index)
2675 ql_write_page0_reg(qdev,
2676 &port_regs->mac1MaxFrameLengthReg,
2677 qdev->max_frame_size);
2678 else
2679 ql_write_page0_reg(qdev,
2680 &port_regs->mac0MaxFrameLengthReg,
2681 qdev->max_frame_size);
2682
2683 value = qdev->nvram_data.tcpMaxWindowSize;
2684 ql_write_page0_reg(qdev, &port_regs->tcpMaxWindow, value);
2685
2686 value = (0xFFFF << 16) | qdev->nvram_data.extHwConfig;
2687
2688 if(ql_sem_spinlock(qdev, QL_FLASH_SEM_MASK,
2689 (QL_RESOURCE_BITS_BASE_CODE | (qdev->mac_index)
2690 * 2) << 13)) {
2691 status = -1;
2692 goto out;
2693 }
2694 ql_write_page0_reg(qdev, &port_regs->ExternalHWConfig, value);
2695 ql_write_page0_reg(qdev, &port_regs->InternalChipConfig,
2696 (((INTERNAL_CHIP_SD | INTERNAL_CHIP_WE) <<
2697 16) | (INTERNAL_CHIP_SD |
2698 INTERNAL_CHIP_WE)));
2699 ql_sem_unlock(qdev, QL_FLASH_SEM_MASK);
2700 }
2701
2702
2703 if(ql_sem_spinlock(qdev, QL_PHY_GIO_SEM_MASK,
2704 (QL_RESOURCE_BITS_BASE_CODE | (qdev->mac_index) *
2705 2) << 7)) {
2706 status = -1;
2707 goto out;
2708 }
2709
2710 ql_init_scan_mode(qdev);
2711 ql_get_phy_owner(qdev);
2712
2713 /* Load the MAC Configuration */
2714
2715 /* Program lower 32 bits of the MAC address */
2716 ql_write_page0_reg(qdev, &port_regs->macAddrIndirectPtrReg,
2717 (MAC_ADDR_INDIRECT_PTR_REG_RP_MASK << 16));
2718 ql_write_page0_reg(qdev, &port_regs->macAddrDataReg,
2719 ((qdev->ndev->dev_addr[2] << 24)
2720 | (qdev->ndev->dev_addr[3] << 16)
2721 | (qdev->ndev->dev_addr[4] << 8)
2722 | qdev->ndev->dev_addr[5]));
2723
2724 /* Program top 16 bits of the MAC address */
2725 ql_write_page0_reg(qdev, &port_regs->macAddrIndirectPtrReg,
2726 ((MAC_ADDR_INDIRECT_PTR_REG_RP_MASK << 16) | 1));
2727 ql_write_page0_reg(qdev, &port_regs->macAddrDataReg,
2728 ((qdev->ndev->dev_addr[0] << 8)
2729 | qdev->ndev->dev_addr[1]));
2730
2731 /* Enable Primary MAC */
2732 ql_write_page0_reg(qdev, &port_regs->macAddrIndirectPtrReg,
2733 ((MAC_ADDR_INDIRECT_PTR_REG_PE << 16) |
2734 MAC_ADDR_INDIRECT_PTR_REG_PE));
2735
2736 /* Clear Primary and Secondary IP addresses */
2737 ql_write_page0_reg(qdev, &port_regs->ipAddrIndexReg,
2738 ((IP_ADDR_INDEX_REG_MASK << 16) |
2739 (qdev->mac_index << 2)));
2740 ql_write_page0_reg(qdev, &port_regs->ipAddrDataReg, 0);
2741
2742 ql_write_page0_reg(qdev, &port_regs->ipAddrIndexReg,
2743 ((IP_ADDR_INDEX_REG_MASK << 16) |
2744 ((qdev->mac_index << 2) + 1)));
2745 ql_write_page0_reg(qdev, &port_regs->ipAddrDataReg, 0);
2746
2747 ql_sem_unlock(qdev, QL_PHY_GIO_SEM_MASK);
2748
2749 /* Indicate Configuration Complete */
2750 ql_write_page0_reg(qdev,
2751 &port_regs->portControl,
2752 ((PORT_CONTROL_CC << 16) | PORT_CONTROL_CC));
2753
2754 do {
2755 value = ql_read_page0_reg(qdev, &port_regs->portStatus);
2756 if (value & PORT_STATUS_IC)
2757 break;
2758 msleep(500);
2759 } while (--delay);
2760
2761 if (delay == 0) {
2762 printk(KERN_ERR PFX
2763 "%s: Hw Initialization timeout.\n", qdev->ndev->name);
2764 status = -1;
2765 goto out;
2766 }
2767
2768 /* Enable Ethernet Function */
2769 value =
2770 (PORT_CONTROL_EF | PORT_CONTROL_ET | PORT_CONTROL_EI |
2771 PORT_CONTROL_HH);
2772 ql_write_page0_reg(qdev, &port_regs->portControl,
2773 ((value << 16) | value));
2774
2775 out:
2776 return status;
2777 }
2778
2779 /*
2780 * Caller holds hw_lock.
2781 */
2782 static int ql_adapter_reset(struct ql3_adapter *qdev)
2783 {
2784 struct ql3xxx_port_registers __iomem *port_regs = qdev->mem_map_registers;
2785 int status = 0;
2786 u16 value;
2787 int max_wait_time;
2788
2789 set_bit(QL_RESET_ACTIVE, &qdev->flags);
2790 clear_bit(QL_RESET_DONE, &qdev->flags);
2791
2792 /*
2793 * Issue soft reset to chip.
2794 */
2795 printk(KERN_DEBUG PFX
2796 "%s: Issue soft reset to chip.\n",
2797 qdev->ndev->name);
2798 ql_write_common_reg(qdev,
2799 &port_regs->CommonRegs.ispControlStatus,
2800 ((ISP_CONTROL_SR << 16) | ISP_CONTROL_SR));
2801
2802 /* Wait 3 seconds for reset to complete. */
2803 printk(KERN_DEBUG PFX
2804 "%s: Wait 10 milliseconds for reset to complete.\n",
2805 qdev->ndev->name);
2806
2807 /* Wait until the firmware tells us the Soft Reset is done */
2808 max_wait_time = 5;
2809 do {
2810 value =
2811 ql_read_common_reg(qdev,
2812 &port_regs->CommonRegs.ispControlStatus);
2813 if ((value & ISP_CONTROL_SR) == 0)
2814 break;
2815
2816 ssleep(1);
2817 } while ((--max_wait_time));
2818
2819 /*
2820 * Also, make sure that the Network Reset Interrupt bit has been
2821 * cleared after the soft reset has taken place.
2822 */
2823 value =
2824 ql_read_common_reg(qdev, &port_regs->CommonRegs.ispControlStatus);
2825 if (value & ISP_CONTROL_RI) {
2826 printk(KERN_DEBUG PFX
2827 "ql_adapter_reset: clearing RI after reset.\n");
2828 ql_write_common_reg(qdev,
2829 &port_regs->CommonRegs.
2830 ispControlStatus,
2831 ((ISP_CONTROL_RI << 16) | ISP_CONTROL_RI));
2832 }
2833
2834 if (max_wait_time == 0) {
2835 /* Issue Force Soft Reset */
2836 ql_write_common_reg(qdev,
2837 &port_regs->CommonRegs.
2838 ispControlStatus,
2839 ((ISP_CONTROL_FSR << 16) |
2840 ISP_CONTROL_FSR));
2841 /*
2842 * Wait until the firmware tells us the Force Soft Reset is
2843 * done
2844 */
2845 max_wait_time = 5;
2846 do {
2847 value =
2848 ql_read_common_reg(qdev,
2849 &port_regs->CommonRegs.
2850 ispControlStatus);
2851 if ((value & ISP_CONTROL_FSR) == 0) {
2852 break;
2853 }
2854 ssleep(1);
2855 } while ((--max_wait_time));
2856 }
2857 if (max_wait_time == 0)
2858 status = 1;
2859
2860 clear_bit(QL_RESET_ACTIVE, &qdev->flags);
2861 set_bit(QL_RESET_DONE, &qdev->flags);
2862 return status;
2863 }
2864
2865 static void ql_set_mac_info(struct ql3_adapter *qdev)
2866 {
2867 struct ql3xxx_port_registers __iomem *port_regs = qdev->mem_map_registers;
2868 u32 value, port_status;
2869 u8 func_number;
2870
2871 /* Get the function number */
2872 value =
2873 ql_read_common_reg_l(qdev, &port_regs->CommonRegs.ispControlStatus);
2874 func_number = (u8) ((value >> 4) & OPCODE_FUNC_ID_MASK);
2875 port_status = ql_read_page0_reg(qdev, &port_regs->portStatus);
2876 switch (value & ISP_CONTROL_FN_MASK) {
2877 case ISP_CONTROL_FN0_NET:
2878 qdev->mac_index = 0;
2879 qdev->mac_ob_opcode = OUTBOUND_MAC_IOCB | func_number;
2880 qdev->tcp_ob_opcode = OUTBOUND_TCP_IOCB | func_number;
2881 qdev->update_ob_opcode = UPDATE_NCB_IOCB | func_number;
2882 qdev->mb_bit_mask = FN0_MA_BITS_MASK;
2883 qdev->PHYAddr = PORT0_PHY_ADDRESS;
2884 if (port_status & PORT_STATUS_SM0)
2885 set_bit(QL_LINK_OPTICAL,&qdev->flags);
2886 else
2887 clear_bit(QL_LINK_OPTICAL,&qdev->flags);
2888 break;
2889
2890 case ISP_CONTROL_FN1_NET:
2891 qdev->mac_index = 1;
2892 qdev->mac_ob_opcode = OUTBOUND_MAC_IOCB | func_number;
2893 qdev->tcp_ob_opcode = OUTBOUND_TCP_IOCB | func_number;
2894 qdev->update_ob_opcode = UPDATE_NCB_IOCB | func_number;
2895 qdev->mb_bit_mask = FN1_MA_BITS_MASK;
2896 qdev->PHYAddr = PORT1_PHY_ADDRESS;
2897 if (port_status & PORT_STATUS_SM1)
2898 set_bit(QL_LINK_OPTICAL,&qdev->flags);
2899 else
2900 clear_bit(QL_LINK_OPTICAL,&qdev->flags);
2901 break;
2902
2903 case ISP_CONTROL_FN0_SCSI:
2904 case ISP_CONTROL_FN1_SCSI:
2905 default:
2906 printk(KERN_DEBUG PFX
2907 "%s: Invalid function number, ispControlStatus = 0x%x\n",
2908 qdev->ndev->name,value);
2909 break;
2910 }
2911 qdev->numPorts = qdev->nvram_data.numPorts;
2912 }
2913
2914 static void ql_display_dev_info(struct net_device *ndev)
2915 {
2916 struct ql3_adapter *qdev = (struct ql3_adapter *)netdev_priv(ndev);
2917 struct pci_dev *pdev = qdev->pdev;
2918
2919 printk(KERN_INFO PFX
2920 "\n%s Adapter %d RevisionID %d found on PCI slot %d.\n",
2921 DRV_NAME, qdev->index, qdev->chip_rev_id, qdev->pci_slot);
2922 printk(KERN_INFO PFX
2923 "%s Interface.\n",
2924 test_bit(QL_LINK_OPTICAL,&qdev->flags) ? "OPTICAL" : "COPPER");
2925
2926 /*
2927 * Print PCI bus width/type.
2928 */
2929 printk(KERN_INFO PFX
2930 "Bus interface is %s %s.\n",
2931 ((qdev->pci_width == 64) ? "64-bit" : "32-bit"),
2932 ((qdev->pci_x) ? "PCI-X" : "PCI"));
2933
2934 printk(KERN_INFO PFX
2935 "mem IO base address adjusted = 0x%p\n",
2936 qdev->mem_map_registers);
2937 printk(KERN_INFO PFX "Interrupt number = %d\n", pdev->irq);
2938
2939 if (netif_msg_probe(qdev))
2940 printk(KERN_INFO PFX
2941 "%s: MAC address %02x:%02x:%02x:%02x:%02x:%02x\n",
2942 ndev->name, ndev->dev_addr[0], ndev->dev_addr[1],
2943 ndev->dev_addr[2], ndev->dev_addr[3], ndev->dev_addr[4],
2944 ndev->dev_addr[5]);
2945 }
2946
2947 static int ql_adapter_down(struct ql3_adapter *qdev, int do_reset)
2948 {
2949 struct net_device *ndev = qdev->ndev;
2950 int retval = 0;
2951
2952 netif_stop_queue(ndev);
2953 netif_carrier_off(ndev);
2954
2955 clear_bit(QL_ADAPTER_UP,&qdev->flags);
2956 clear_bit(QL_LINK_MASTER,&qdev->flags);
2957
2958 ql_disable_interrupts(qdev);
2959
2960 free_irq(qdev->pdev->irq, ndev);
2961
2962 if (qdev->msi && test_bit(QL_MSI_ENABLED,&qdev->flags)) {
2963 printk(KERN_INFO PFX
2964 "%s: calling pci_disable_msi().\n", qdev->ndev->name);
2965 clear_bit(QL_MSI_ENABLED,&qdev->flags);
2966 pci_disable_msi(qdev->pdev);
2967 }
2968
2969 del_timer_sync(&qdev->adapter_timer);
2970
2971 netif_poll_disable(ndev);
2972
2973 if (do_reset) {
2974 int soft_reset;
2975 unsigned long hw_flags;
2976
2977 spin_lock_irqsave(&qdev->hw_lock, hw_flags);
2978 if (ql_wait_for_drvr_lock(qdev)) {
2979 if ((soft_reset = ql_adapter_reset(qdev))) {
2980 printk(KERN_ERR PFX
2981 "%s: ql_adapter_reset(%d) FAILED!\n",
2982 ndev->name, qdev->index);
2983 }
2984 printk(KERN_ERR PFX
2985 "%s: Releaseing driver lock via chip reset.\n",ndev->name);
2986 } else {
2987 printk(KERN_ERR PFX
2988 "%s: Could not acquire driver lock to do "
2989 "reset!\n", ndev->name);
2990 retval = -1;
2991 }
2992 spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
2993 }
2994 ql_free_mem_resources(qdev);
2995 return retval;
2996 }
2997
2998 static int ql_adapter_up(struct ql3_adapter *qdev)
2999 {
3000 struct net_device *ndev = qdev->ndev;
3001 int err;
3002 unsigned long irq_flags = SA_SAMPLE_RANDOM | SA_SHIRQ;
3003 unsigned long hw_flags;
3004
3005 if (ql_alloc_mem_resources(qdev)) {
3006 printk(KERN_ERR PFX
3007 "%s Unable to allocate buffers.\n", ndev->name);
3008 return -ENOMEM;
3009 }
3010
3011 if (qdev->msi) {
3012 if (pci_enable_msi(qdev->pdev)) {
3013 printk(KERN_ERR PFX
3014 "%s: User requested MSI, but MSI failed to "
3015 "initialize. Continuing without MSI.\n",
3016 qdev->ndev->name);
3017 qdev->msi = 0;
3018 } else {
3019 printk(KERN_INFO PFX "%s: MSI Enabled...\n", qdev->ndev->name);
3020 set_bit(QL_MSI_ENABLED,&qdev->flags);
3021 irq_flags &= ~SA_SHIRQ;
3022 }
3023 }
3024
3025 if ((err = request_irq(qdev->pdev->irq,
3026 ql3xxx_isr,
3027 irq_flags, ndev->name, ndev))) {
3028 printk(KERN_ERR PFX
3029 "%s: Failed to reserve interrupt %d already in use.\n",
3030 ndev->name, qdev->pdev->irq);
3031 goto err_irq;
3032 }
3033
3034 spin_lock_irqsave(&qdev->hw_lock, hw_flags);
3035
3036 if ((err = ql_wait_for_drvr_lock(qdev))) {
3037 if ((err = ql_adapter_initialize(qdev))) {
3038 printk(KERN_ERR PFX
3039 "%s: Unable to initialize adapter.\n",
3040 ndev->name);
3041 goto err_init;
3042 }
3043 printk(KERN_ERR PFX
3044 "%s: Releaseing driver lock.\n",ndev->name);
3045 ql_sem_unlock(qdev, QL_DRVR_SEM_MASK);
3046 } else {
3047 printk(KERN_ERR PFX
3048 "%s: Could not aquire driver lock.\n",
3049 ndev->name);
3050 goto err_lock;
3051 }
3052
3053 spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
3054
3055 set_bit(QL_ADAPTER_UP,&qdev->flags);
3056
3057 mod_timer(&qdev->adapter_timer, jiffies + HZ * 1);
3058
3059 netif_poll_enable(ndev);
3060 ql_enable_interrupts(qdev);
3061 return 0;
3062
3063 err_init:
3064 ql_sem_unlock(qdev, QL_DRVR_SEM_MASK);
3065 err_lock:
3066 free_irq(qdev->pdev->irq, ndev);
3067 err_irq:
3068 if (qdev->msi && test_bit(QL_MSI_ENABLED,&qdev->flags)) {
3069 printk(KERN_INFO PFX
3070 "%s: calling pci_disable_msi().\n",
3071 qdev->ndev->name);
3072 clear_bit(QL_MSI_ENABLED,&qdev->flags);
3073 pci_disable_msi(qdev->pdev);
3074 }
3075 return err;
3076 }
3077
3078 static int ql_cycle_adapter(struct ql3_adapter *qdev, int reset)
3079 {
3080 if( ql_adapter_down(qdev,reset) || ql_adapter_up(qdev)) {
3081 printk(KERN_ERR PFX
3082 "%s: Driver up/down cycle failed, "
3083 "closing device\n",qdev->ndev->name);
3084 dev_close(qdev->ndev);
3085 return -1;
3086 }
3087 return 0;
3088 }
3089
3090 static int ql3xxx_close(struct net_device *ndev)
3091 {
3092 struct ql3_adapter *qdev = netdev_priv(ndev);
3093
3094 /*
3095 * Wait for device to recover from a reset.
3096 * (Rarely happens, but possible.)
3097 */
3098 while (!test_bit(QL_ADAPTER_UP,&qdev->flags))
3099 msleep(50);
3100
3101 ql_adapter_down(qdev,QL_DO_RESET);
3102 return 0;
3103 }
3104
3105 static int ql3xxx_open(struct net_device *ndev)
3106 {
3107 struct ql3_adapter *qdev = netdev_priv(ndev);
3108 return (ql_adapter_up(qdev));
3109 }
3110
3111 static struct net_device_stats *ql3xxx_get_stats(struct net_device *dev)
3112 {
3113 struct ql3_adapter *qdev = (struct ql3_adapter *)dev->priv;
3114 return &qdev->stats;
3115 }
3116
3117 static int ql3xxx_change_mtu(struct net_device *ndev, int new_mtu)
3118 {
3119 struct ql3_adapter *qdev = netdev_priv(ndev);
3120 printk(KERN_ERR PFX "%s: new mtu size = %d.\n", ndev->name, new_mtu);
3121 if (new_mtu != NORMAL_MTU_SIZE && new_mtu != JUMBO_MTU_SIZE) {
3122 printk(KERN_ERR PFX
3123 "%s: mtu size of %d is not valid. Use exactly %d or "
3124 "%d.\n", ndev->name, new_mtu, NORMAL_MTU_SIZE,
3125 JUMBO_MTU_SIZE);
3126 return -EINVAL;
3127 }
3128
3129 if (!netif_running(ndev)) {
3130 ndev->mtu = new_mtu;
3131 return 0;
3132 }
3133
3134 ndev->mtu = new_mtu;
3135 return ql_cycle_adapter(qdev,QL_DO_RESET);
3136 }
3137
3138 static void ql3xxx_set_multicast_list(struct net_device *ndev)
3139 {
3140 /*
3141 * We are manually parsing the list in the net_device structure.
3142 */
3143 return;
3144 }
3145
3146 static int ql3xxx_set_mac_address(struct net_device *ndev, void *p)
3147 {
3148 struct ql3_adapter *qdev = (struct ql3_adapter *)netdev_priv(ndev);
3149 struct ql3xxx_port_registers __iomem *port_regs =
3150 qdev->mem_map_registers;
3151 struct sockaddr *addr = p;
3152 unsigned long hw_flags;
3153
3154 if (netif_running(ndev))
3155 return -EBUSY;
3156
3157 if (!is_valid_ether_addr(addr->sa_data))
3158 return -EADDRNOTAVAIL;
3159
3160 memcpy(ndev->dev_addr, addr->sa_data, ndev->addr_len);
3161
3162 spin_lock_irqsave(&qdev->hw_lock, hw_flags);
3163 /* Program lower 32 bits of the MAC address */
3164 ql_write_page0_reg(qdev, &port_regs->macAddrIndirectPtrReg,
3165 (MAC_ADDR_INDIRECT_PTR_REG_RP_MASK << 16));
3166 ql_write_page0_reg(qdev, &port_regs->macAddrDataReg,
3167 ((ndev->dev_addr[2] << 24) | (ndev->
3168 dev_addr[3] << 16) |
3169 (ndev->dev_addr[4] << 8) | ndev->dev_addr[5]));
3170
3171 /* Program top 16 bits of the MAC address */
3172 ql_write_page0_reg(qdev, &port_regs->macAddrIndirectPtrReg,
3173 ((MAC_ADDR_INDIRECT_PTR_REG_RP_MASK << 16) | 1));
3174 ql_write_page0_reg(qdev, &port_regs->macAddrDataReg,
3175 ((ndev->dev_addr[0] << 8) | ndev->dev_addr[1]));
3176 spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
3177
3178 return 0;
3179 }
3180
3181 static void ql3xxx_tx_timeout(struct net_device *ndev)
3182 {
3183 struct ql3_adapter *qdev = (struct ql3_adapter *)netdev_priv(ndev);
3184
3185 printk(KERN_ERR PFX "%s: Resetting...\n", ndev->name);
3186 /*
3187 * Stop the queues, we've got a problem.
3188 */
3189 netif_stop_queue(ndev);
3190
3191 /*
3192 * Wake up the worker to process this event.
3193 */
3194 queue_delayed_work(qdev->workqueue, &qdev->tx_timeout_work, 0);
3195 }
3196
3197 static void ql_reset_work(struct work_struct *work)
3198 {
3199 struct ql3_adapter *qdev =
3200 container_of(work, struct ql3_adapter, reset_work.work);
3201 struct net_device *ndev = qdev->ndev;
3202 u32 value;
3203 struct ql_tx_buf_cb *tx_cb;
3204 int max_wait_time, i;
3205 struct ql3xxx_port_registers __iomem *port_regs = qdev->mem_map_registers;
3206 unsigned long hw_flags;
3207
3208 if (test_bit((QL_RESET_PER_SCSI | QL_RESET_START),&qdev->flags)) {
3209 clear_bit(QL_LINK_MASTER,&qdev->flags);
3210
3211 /*
3212 * Loop through the active list and return the skb.
3213 */
3214 for (i = 0; i < NUM_REQ_Q_ENTRIES; i++) {
3215 tx_cb = &qdev->tx_buf[i];
3216 if (tx_cb->skb) {
3217
3218 printk(KERN_DEBUG PFX
3219 "%s: Freeing lost SKB.\n",
3220 qdev->ndev->name);
3221 pci_unmap_single(qdev->pdev,
3222 pci_unmap_addr(tx_cb, mapaddr),
3223 pci_unmap_len(tx_cb, maplen), PCI_DMA_TODEVICE);
3224 dev_kfree_skb(tx_cb->skb);
3225 tx_cb->skb = NULL;
3226 }
3227 }
3228
3229 printk(KERN_ERR PFX
3230 "%s: Clearing NRI after reset.\n", qdev->ndev->name);
3231 spin_lock_irqsave(&qdev->hw_lock, hw_flags);
3232 ql_write_common_reg(qdev,
3233 &port_regs->CommonRegs.
3234 ispControlStatus,
3235 ((ISP_CONTROL_RI << 16) | ISP_CONTROL_RI));
3236 /*
3237 * Wait the for Soft Reset to Complete.
3238 */
3239 max_wait_time = 10;
3240 do {
3241 value = ql_read_common_reg(qdev,
3242 &port_regs->CommonRegs.
3243
3244 ispControlStatus);
3245 if ((value & ISP_CONTROL_SR) == 0) {
3246 printk(KERN_DEBUG PFX
3247 "%s: reset completed.\n",
3248 qdev->ndev->name);
3249 break;
3250 }
3251
3252 if (value & ISP_CONTROL_RI) {
3253 printk(KERN_DEBUG PFX
3254 "%s: clearing NRI after reset.\n",
3255 qdev->ndev->name);
3256 ql_write_common_reg(qdev,
3257 &port_regs->
3258 CommonRegs.
3259 ispControlStatus,
3260 ((ISP_CONTROL_RI <<
3261 16) | ISP_CONTROL_RI));
3262 }
3263
3264 ssleep(1);
3265 } while (--max_wait_time);
3266 spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
3267
3268 if (value & ISP_CONTROL_SR) {
3269
3270 /*
3271 * Set the reset flags and clear the board again.
3272 * Nothing else to do...
3273 */
3274 printk(KERN_ERR PFX
3275 "%s: Timed out waiting for reset to "
3276 "complete.\n", ndev->name);
3277 printk(KERN_ERR PFX
3278 "%s: Do a reset.\n", ndev->name);
3279 clear_bit(QL_RESET_PER_SCSI,&qdev->flags);
3280 clear_bit(QL_RESET_START,&qdev->flags);
3281 ql_cycle_adapter(qdev,QL_DO_RESET);
3282 return;
3283 }
3284
3285 clear_bit(QL_RESET_ACTIVE,&qdev->flags);
3286 clear_bit(QL_RESET_PER_SCSI,&qdev->flags);
3287 clear_bit(QL_RESET_START,&qdev->flags);
3288 ql_cycle_adapter(qdev,QL_NO_RESET);
3289 }
3290 }
3291
3292 static void ql_tx_timeout_work(struct work_struct *work)
3293 {
3294 struct ql3_adapter *qdev =
3295 container_of(work, struct ql3_adapter, tx_timeout_work.work);
3296
3297 ql_cycle_adapter(qdev, QL_DO_RESET);
3298 }
3299
3300 static void ql_get_board_info(struct ql3_adapter *qdev)
3301 {
3302 struct ql3xxx_port_registers __iomem *port_regs = qdev->mem_map_registers;
3303 u32 value;
3304
3305 value = ql_read_page0_reg_l(qdev, &port_regs->portStatus);
3306
3307 qdev->chip_rev_id = ((value & PORT_STATUS_REV_ID_MASK) >> 12);
3308 if (value & PORT_STATUS_64)
3309 qdev->pci_width = 64;
3310 else
3311 qdev->pci_width = 32;
3312 if (value & PORT_STATUS_X)
3313 qdev->pci_x = 1;
3314 else
3315 qdev->pci_x = 0;
3316 qdev->pci_slot = (u8) PCI_SLOT(qdev->pdev->devfn);
3317 }
3318
3319 static void ql3xxx_timer(unsigned long ptr)
3320 {
3321 struct ql3_adapter *qdev = (struct ql3_adapter *)ptr;
3322
3323 if (test_bit(QL_RESET_ACTIVE,&qdev->flags)) {
3324 printk(KERN_DEBUG PFX
3325 "%s: Reset in progress.\n",
3326 qdev->ndev->name);
3327 goto end;
3328 }
3329
3330 ql_link_state_machine(qdev);
3331
3332 /* Restart timer on 2 second interval. */
3333 end:
3334 mod_timer(&qdev->adapter_timer, jiffies + HZ * 1);
3335 }
3336
3337 static int __devinit ql3xxx_probe(struct pci_dev *pdev,
3338 const struct pci_device_id *pci_entry)
3339 {
3340 struct net_device *ndev = NULL;
3341 struct ql3_adapter *qdev = NULL;
3342 static int cards_found = 0;
3343 int pci_using_dac, err;
3344
3345 err = pci_enable_device(pdev);
3346 if (err) {
3347 printk(KERN_ERR PFX "%s cannot enable PCI device\n",
3348 pci_name(pdev));
3349 goto err_out;
3350 }
3351
3352 err = pci_request_regions(pdev, DRV_NAME);
3353 if (err) {
3354 printk(KERN_ERR PFX "%s cannot obtain PCI resources\n",
3355 pci_name(pdev));
3356 goto err_out_disable_pdev;
3357 }
3358
3359 pci_set_master(pdev);
3360
3361 if (!pci_set_dma_mask(pdev, DMA_64BIT_MASK)) {
3362 pci_using_dac = 1;
3363 err = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK);
3364 } else if (!(err = pci_set_dma_mask(pdev, DMA_32BIT_MASK))) {
3365 pci_using_dac = 0;
3366 err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
3367 }
3368
3369 if (err) {
3370 printk(KERN_ERR PFX "%s no usable DMA configuration\n",
3371 pci_name(pdev));
3372 goto err_out_free_regions;
3373 }
3374
3375 ndev = alloc_etherdev(sizeof(struct ql3_adapter));
3376 if (!ndev)
3377 goto err_out_free_regions;
3378
3379 SET_MODULE_OWNER(ndev);
3380 SET_NETDEV_DEV(ndev, &pdev->dev);
3381
3382 if (pci_using_dac)
3383 ndev->features |= NETIF_F_HIGHDMA;
3384
3385 pci_set_drvdata(pdev, ndev);
3386
3387 qdev = netdev_priv(ndev);
3388 qdev->index = cards_found;
3389 qdev->ndev = ndev;
3390 qdev->pdev = pdev;
3391 qdev->port_link_state = LS_DOWN;
3392 if (msi)
3393 qdev->msi = 1;
3394
3395 qdev->msg_enable = netif_msg_init(debug, default_msg);
3396
3397 qdev->mem_map_registers =
3398 ioremap_nocache(pci_resource_start(pdev, 1),
3399 pci_resource_len(qdev->pdev, 1));
3400 if (!qdev->mem_map_registers) {
3401 printk(KERN_ERR PFX "%s: cannot map device registers\n",
3402 pci_name(pdev));
3403 goto err_out_free_ndev;
3404 }
3405
3406 spin_lock_init(&qdev->adapter_lock);
3407 spin_lock_init(&qdev->hw_lock);
3408
3409 /* Set driver entry points */
3410 ndev->open = ql3xxx_open;
3411 ndev->hard_start_xmit = ql3xxx_send;
3412 ndev->stop = ql3xxx_close;
3413 ndev->get_stats = ql3xxx_get_stats;
3414 ndev->change_mtu = ql3xxx_change_mtu;
3415 ndev->set_multicast_list = ql3xxx_set_multicast_list;
3416 SET_ETHTOOL_OPS(ndev, &ql3xxx_ethtool_ops);
3417 ndev->set_mac_address = ql3xxx_set_mac_address;
3418 ndev->tx_timeout = ql3xxx_tx_timeout;
3419 ndev->watchdog_timeo = 5 * HZ;
3420
3421 ndev->poll = &ql_poll;
3422 ndev->weight = 64;
3423
3424 ndev->irq = pdev->irq;
3425
3426 /* make sure the EEPROM is good */
3427 if (ql_get_nvram_params(qdev)) {
3428 printk(KERN_ALERT PFX
3429 "ql3xxx_probe: Adapter #%d, Invalid NVRAM parameters.\n",
3430 qdev->index);
3431 goto err_out_iounmap;
3432 }
3433
3434 ql_set_mac_info(qdev);
3435
3436 /* Validate and set parameters */
3437 if (qdev->mac_index) {
3438 memcpy(ndev->dev_addr, &qdev->nvram_data.funcCfg_fn2.macAddress,
3439 ETH_ALEN);
3440 } else {
3441 memcpy(ndev->dev_addr, &qdev->nvram_data.funcCfg_fn0.macAddress,
3442 ETH_ALEN);
3443 }
3444 memcpy(ndev->perm_addr, ndev->dev_addr, ndev->addr_len);
3445
3446 ndev->tx_queue_len = NUM_REQ_Q_ENTRIES;
3447
3448 /* Turn off support for multicasting */
3449 ndev->flags &= ~IFF_MULTICAST;
3450
3451 /* Record PCI bus information. */
3452 ql_get_board_info(qdev);
3453
3454 /*
3455 * Set the Maximum Memory Read Byte Count value. We do this to handle
3456 * jumbo frames.
3457 */
3458 if (qdev->pci_x) {
3459 pci_write_config_word(pdev, (int)0x4e, (u16) 0x0036);
3460 }
3461
3462 err = register_netdev(ndev);
3463 if (err) {
3464 printk(KERN_ERR PFX "%s: cannot register net device\n",
3465 pci_name(pdev));
3466 goto err_out_iounmap;
3467 }
3468
3469 /* we're going to reset, so assume we have no link for now */
3470
3471 netif_carrier_off(ndev);
3472 netif_stop_queue(ndev);
3473
3474 qdev->workqueue = create_singlethread_workqueue(ndev->name);
3475 INIT_DELAYED_WORK(&qdev->reset_work, ql_reset_work);
3476 INIT_DELAYED_WORK(&qdev->tx_timeout_work, ql_tx_timeout_work);
3477
3478 init_timer(&qdev->adapter_timer);
3479 qdev->adapter_timer.function = ql3xxx_timer;
3480 qdev->adapter_timer.expires = jiffies + HZ * 2; /* two second delay */
3481 qdev->adapter_timer.data = (unsigned long)qdev;
3482
3483 if(!cards_found) {
3484 printk(KERN_ALERT PFX "%s\n", DRV_STRING);
3485 printk(KERN_ALERT PFX "Driver name: %s, Version: %s.\n",
3486 DRV_NAME, DRV_VERSION);
3487 }
3488 ql_display_dev_info(ndev);
3489
3490 cards_found++;
3491 return 0;
3492
3493 err_out_iounmap:
3494 iounmap(qdev->mem_map_registers);
3495 err_out_free_ndev:
3496 free_netdev(ndev);
3497 err_out_free_regions:
3498 pci_release_regions(pdev);
3499 err_out_disable_pdev:
3500 pci_disable_device(pdev);
3501 pci_set_drvdata(pdev, NULL);
3502 err_out:
3503 return err;
3504 }
3505
3506 static void __devexit ql3xxx_remove(struct pci_dev *pdev)
3507 {
3508 struct net_device *ndev = pci_get_drvdata(pdev);
3509 struct ql3_adapter *qdev = netdev_priv(ndev);
3510
3511 unregister_netdev(ndev);
3512 qdev = netdev_priv(ndev);
3513
3514 ql_disable_interrupts(qdev);
3515
3516 if (qdev->workqueue) {
3517 cancel_delayed_work(&qdev->reset_work);
3518 cancel_delayed_work(&qdev->tx_timeout_work);
3519 destroy_workqueue(qdev->workqueue);
3520 qdev->workqueue = NULL;
3521 }
3522
3523 iounmap(qdev->mem_map_registers);
3524 pci_release_regions(pdev);
3525 pci_set_drvdata(pdev, NULL);
3526 free_netdev(ndev);
3527 }
3528
3529 static struct pci_driver ql3xxx_driver = {
3530
3531 .name = DRV_NAME,
3532 .id_table = ql3xxx_pci_tbl,
3533 .probe = ql3xxx_probe,
3534 .remove = __devexit_p(ql3xxx_remove),
3535 };
3536
3537 static int __init ql3xxx_init_module(void)
3538 {
3539 return pci_register_driver(&ql3xxx_driver);
3540 }
3541
3542 static void __exit ql3xxx_exit(void)
3543 {
3544 pci_unregister_driver(&ql3xxx_driver);
3545 }
3546
3547 module_init(ql3xxx_init_module);
3548 module_exit(ql3xxx_exit);
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