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[net-next-2.6.git] / drivers / net / qla3xxx.c
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5a4faa87
RM		 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
44static const char ql3xxx_driver_name[] = DRV_NAME;
45static const char ql3xxx_driver_version[] = DRV_VERSION;
46
47MODULE_AUTHOR("QLogic Corporation");
48MODULE_DESCRIPTION("QLogic ISP3XXX Network Driver " DRV_VERSION " ");
49MODULE_LICENSE("GPL");
50MODULE_VERSION(DRV_VERSION);
51
52static const u32 default_msg
53 = NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK
54 | NETIF_MSG_IFUP | NETIF_MSG_IFDOWN;
55
56static int debug = -1; /* defaults above */
57module_param(debug, int, 0);
58MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)");
59
60static int msi;
61module_param(msi, int, 0);
62MODULE_PARM_DESC(msi, "Turn on Message Signaled Interrupts.");
63
64static 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
70MODULE_DEVICE_TABLE(pci, ql3xxx_pci_tbl);
71
72/*
73 * Caller must take hw_lock.
74 */
75static 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
93static 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
100static 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 */
113static 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
140static 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
150static 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
163static u32 ql_read_common_reg(struct ql3_adapter *qdev,
164 u32 __iomem * reg)
165{
166 return readl(reg);
167}
168
169static 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
184static 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
191static void ql_write_common_reg_l(struct ql3_adapter *qdev,
192 u32 * reg, u32 value)
193{
194 unsigned long hw_flags;
195
196 spin_lock_irqsave(&qdev->hw_lock, hw_flags);
197 writel(value, (u32 *) reg);
198 readl(reg);
199 spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
200 return;
201}
202
203static void ql_write_common_reg(struct ql3_adapter *qdev,
204 u32 * reg, u32 value)
205{
206 writel(value, (u32 *) reg);
207 readl(reg);
208 return;
209}
210
211static void ql_write_page0_reg(struct ql3_adapter *qdev,
212 u32 * reg, u32 value)
213{
214 if (qdev->current_page != 0)
215 ql_set_register_page(qdev,0);
216 writel(value, (u32 *) reg);
217 readl(reg);
218 return;
219}
220
221/*
222 * Caller holds hw_lock. Only called during init.
223 */
224static void ql_write_page1_reg(struct ql3_adapter *qdev,
225 u32 * reg, u32 value)
226{
227 if (qdev->current_page != 1)
228 ql_set_register_page(qdev,1);
229 writel(value, (u32 *) reg);
230 readl(reg);
231 return;
232}
233
234/*
235 * Caller holds hw_lock. Only called during init.
236 */
237static void ql_write_page2_reg(struct ql3_adapter *qdev,
238 u32 * reg, u32 value)
239{
240 if (qdev->current_page != 2)
241 ql_set_register_page(qdev,2);
242 writel(value, (u32 *) reg);
243 readl(reg);
244 return;
245}
246
247static void ql_disable_interrupts(struct ql3_adapter *qdev)
248{
249 struct ql3xxx_port_registers __iomem *port_regs = qdev->mem_map_registers;
250
251 ql_write_common_reg_l(qdev, &port_regs->CommonRegs.ispInterruptMaskReg,
252 (ISP_IMR_ENABLE_INT << 16));
253
254}
255
256static void ql_enable_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 ((0xff << 16) | ISP_IMR_ENABLE_INT));
262
263}
264
265static void ql_release_to_lrg_buf_free_list(struct ql3_adapter *qdev,
266 struct ql_rcv_buf_cb *lrg_buf_cb)
267{
268 u64 map;
269 lrg_buf_cb->next = NULL;
270
271 if (qdev->lrg_buf_free_tail == NULL) { /* The list is empty */
272 qdev->lrg_buf_free_head = qdev->lrg_buf_free_tail = lrg_buf_cb;
273 } else {
274 qdev->lrg_buf_free_tail->next = lrg_buf_cb;
275 qdev->lrg_buf_free_tail = lrg_buf_cb;
276 }
277
278 if (!lrg_buf_cb->skb) {
279 lrg_buf_cb->skb = dev_alloc_skb(qdev->lrg_buffer_len);
280 if (unlikely(!lrg_buf_cb->skb)) {
281 printk(KERN_ERR PFX "%s: failed dev_alloc_skb().\n",
282 qdev->ndev->name);
283 qdev->lrg_buf_skb_check++;
284 } else {
285 /*
286 * We save some space to copy the ethhdr from first
287 * buffer
288 */
289 skb_reserve(lrg_buf_cb->skb, QL_HEADER_SPACE);
290 map = pci_map_single(qdev->pdev,
291 lrg_buf_cb->skb->data,
292 qdev->lrg_buffer_len -
293 QL_HEADER_SPACE,
294 PCI_DMA_FROMDEVICE);
295 lrg_buf_cb->buf_phy_addr_low =
296 cpu_to_le32(LS_64BITS(map));
297 lrg_buf_cb->buf_phy_addr_high =
298 cpu_to_le32(MS_64BITS(map));
299 pci_unmap_addr_set(lrg_buf_cb, mapaddr, map);
300 pci_unmap_len_set(lrg_buf_cb, maplen,
301 qdev->lrg_buffer_len -
302 QL_HEADER_SPACE);
303 }
304 }
305
306 qdev->lrg_buf_free_count++;
307}
308
309static struct ql_rcv_buf_cb *ql_get_from_lrg_buf_free_list(struct ql3_adapter
310 *qdev)
311{
312 struct ql_rcv_buf_cb *lrg_buf_cb;
313
314 if ((lrg_buf_cb = qdev->lrg_buf_free_head) != NULL) {
315 if ((qdev->lrg_buf_free_head = lrg_buf_cb->next) == NULL)
316 qdev->lrg_buf_free_tail = NULL;
317 qdev->lrg_buf_free_count--;
318 }
319
320 return lrg_buf_cb;
321}
322
323static u32 addrBits = EEPROM_NO_ADDR_BITS;
324static u32 dataBits = EEPROM_NO_DATA_BITS;
325
326static void fm93c56a_deselect(struct ql3_adapter *qdev);
327static void eeprom_readword(struct ql3_adapter *qdev, u32 eepromAddr,
328 unsigned short *value);
329
330/*
331 * Caller holds hw_lock.
332 */
333static void fm93c56a_select(struct ql3_adapter *qdev)
334{
335 struct ql3xxx_port_registers __iomem *port_regs =
336 qdev->mem_map_registers;
337
338 qdev->eeprom_cmd_data = AUBURN_EEPROM_CS_1;
339 ql_write_common_reg(qdev, &port_regs->CommonRegs.serialPortInterfaceReg,
340 ISP_NVRAM_MASK | qdev->eeprom_cmd_data);
341 ql_write_common_reg(qdev, &port_regs->CommonRegs.serialPortInterfaceReg,
342 ((ISP_NVRAM_MASK << 16) | qdev->eeprom_cmd_data));
343}
344
345/*
346 * Caller holds hw_lock.
347 */
348static void fm93c56a_cmd(struct ql3_adapter *qdev, u32 cmd, u32 eepromAddr)
349{
350 int i;
351 u32 mask;
352 u32 dataBit;
353 u32 previousBit;
354 struct ql3xxx_port_registers __iomem *port_regs =
355 qdev->mem_map_registers;
356
357 /* Clock in a zero, then do the start bit */
358 ql_write_common_reg(qdev, &port_regs->CommonRegs.serialPortInterfaceReg,
359 ISP_NVRAM_MASK | qdev->eeprom_cmd_data |
360 AUBURN_EEPROM_DO_1);
361 ql_write_common_reg(qdev, &port_regs->CommonRegs.serialPortInterfaceReg,
362 ISP_NVRAM_MASK | qdev->
363 eeprom_cmd_data | AUBURN_EEPROM_DO_1 |
364 AUBURN_EEPROM_CLK_RISE);
365 ql_write_common_reg(qdev, &port_regs->CommonRegs.serialPortInterfaceReg,
366 ISP_NVRAM_MASK | qdev->
367 eeprom_cmd_data | AUBURN_EEPROM_DO_1 |
368 AUBURN_EEPROM_CLK_FALL);
369
370 mask = 1 << (FM93C56A_CMD_BITS - 1);
371 /* Force the previous data bit to be different */
372 previousBit = 0xffff;
373 for (i = 0; i < FM93C56A_CMD_BITS; i++) {
374 dataBit =
375 (cmd & mask) ? AUBURN_EEPROM_DO_1 : AUBURN_EEPROM_DO_0;
376 if (previousBit != dataBit) {
377 /*
378 * If the bit changed, then change the DO state to
379 * match
380 */
381 ql_write_common_reg(qdev,
382 &port_regs->CommonRegs.
383 serialPortInterfaceReg,
384 ISP_NVRAM_MASK | qdev->
385 eeprom_cmd_data | dataBit);
386 previousBit = dataBit;
387 }
388 ql_write_common_reg(qdev,
389 &port_regs->CommonRegs.
390 serialPortInterfaceReg,
391 ISP_NVRAM_MASK | qdev->
392 eeprom_cmd_data | dataBit |
393 AUBURN_EEPROM_CLK_RISE);
394 ql_write_common_reg(qdev,
395 &port_regs->CommonRegs.
396 serialPortInterfaceReg,
397 ISP_NVRAM_MASK | qdev->
398 eeprom_cmd_data | dataBit |
399 AUBURN_EEPROM_CLK_FALL);
400 cmd = cmd << 1;
401 }
402
403 mask = 1 << (addrBits - 1);
404 /* Force the previous data bit to be different */
405 previousBit = 0xffff;
406 for (i = 0; i < addrBits; i++) {
407 dataBit =
408 (eepromAddr & mask) ? AUBURN_EEPROM_DO_1 :
409 AUBURN_EEPROM_DO_0;
410 if (previousBit != dataBit) {
411 /*
412 * If the bit changed, then change the DO state to
413 * match
414 */
415 ql_write_common_reg(qdev,
416 &port_regs->CommonRegs.
417 serialPortInterfaceReg,
418 ISP_NVRAM_MASK | qdev->
419 eeprom_cmd_data | dataBit);
420 previousBit = dataBit;
421 }
422 ql_write_common_reg(qdev,
423 &port_regs->CommonRegs.
424 serialPortInterfaceReg,
425 ISP_NVRAM_MASK | qdev->
426 eeprom_cmd_data | dataBit |
427 AUBURN_EEPROM_CLK_RISE);
428 ql_write_common_reg(qdev,
429 &port_regs->CommonRegs.
430 serialPortInterfaceReg,
431 ISP_NVRAM_MASK | qdev->
432 eeprom_cmd_data | dataBit |
433 AUBURN_EEPROM_CLK_FALL);
434 eepromAddr = eepromAddr << 1;
435 }
436}
437
438/*
439 * Caller holds hw_lock.
440 */
441static void fm93c56a_deselect(struct ql3_adapter *qdev)
442{
443 struct ql3xxx_port_registers __iomem *port_regs =
444 qdev->mem_map_registers;
445 qdev->eeprom_cmd_data = AUBURN_EEPROM_CS_0;
446 ql_write_common_reg(qdev, &port_regs->CommonRegs.serialPortInterfaceReg,
447 ISP_NVRAM_MASK | qdev->eeprom_cmd_data);
448}
449
450/*
451 * Caller holds hw_lock.
452 */
453static void fm93c56a_datain(struct ql3_adapter *qdev, unsigned short *value)
454{
455 int i;
456 u32 data = 0;
457 u32 dataBit;
458 struct ql3xxx_port_registers __iomem *port_regs =
459 qdev->mem_map_registers;
460
461 /* Read the data bits */
462 /* The first bit is a dummy. Clock right over it. */
463 for (i = 0; i < dataBits; i++) {
464 ql_write_common_reg(qdev,
465 &port_regs->CommonRegs.
466 serialPortInterfaceReg,
467 ISP_NVRAM_MASK | qdev->eeprom_cmd_data |
468 AUBURN_EEPROM_CLK_RISE);
469 ql_write_common_reg(qdev,
470 &port_regs->CommonRegs.
471 serialPortInterfaceReg,
472 ISP_NVRAM_MASK | qdev->eeprom_cmd_data |
473 AUBURN_EEPROM_CLK_FALL);
474 dataBit =
475 (ql_read_common_reg
476 (qdev,
477 &port_regs->CommonRegs.
478 serialPortInterfaceReg) & AUBURN_EEPROM_DI_1) ? 1 : 0;
479 data = (data << 1) | dataBit;
480 }
481 *value = (u16) data;
482}
483
484/*
485 * Caller holds hw_lock.
486 */
487static void eeprom_readword(struct ql3_adapter *qdev,
488 u32 eepromAddr, unsigned short *value)
489{
490 fm93c56a_select(qdev);
491 fm93c56a_cmd(qdev, (int)FM93C56A_READ, eepromAddr);
492 fm93c56a_datain(qdev, value);
493 fm93c56a_deselect(qdev);
494}
495
496static void ql_swap_mac_addr(u8 * macAddress)
497{
498#ifdef __BIG_ENDIAN
499 u8 temp;
500 temp = macAddress[0];
501 macAddress[0] = macAddress[1];
502 macAddress[1] = temp;
503 temp = macAddress[2];
504 macAddress[2] = macAddress[3];
505 macAddress[3] = temp;
506 temp = macAddress[4];
507 macAddress[4] = macAddress[5];
508 macAddress[5] = temp;
509#endif
510}
511
512static int ql_get_nvram_params(struct ql3_adapter *qdev)
513{
514 u16 *pEEPROMData;
515 u16 checksum = 0;
516 u32 index;
517 unsigned long hw_flags;
518
519 spin_lock_irqsave(&qdev->hw_lock, hw_flags);
520
521 pEEPROMData = (u16 *) & qdev->nvram_data;
522 qdev->eeprom_cmd_data = 0;
523 if(ql_sem_spinlock(qdev, QL_NVRAM_SEM_MASK,
524 (QL_RESOURCE_BITS_BASE_CODE | (qdev->mac_index) *
525 2) << 10)) {
526 printk(KERN_ERR PFX"%s: Failed ql_sem_spinlock().\n",
527 __func__);
528 spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
529 return -1;
530 }
531
532 for (index = 0; index < EEPROM_SIZE; index++) {
533 eeprom_readword(qdev, index, pEEPROMData);
534 checksum += *pEEPROMData;
535 pEEPROMData++;
536 }
537 ql_sem_unlock(qdev, QL_NVRAM_SEM_MASK);
538
539 if (checksum != 0) {
540 printk(KERN_ERR PFX "%s: checksum should be zero, is %x!!\n",
541 qdev->ndev->name, checksum);
542 spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
543 return -1;
544 }
545
546 /*
547 * We have a problem with endianness for the MAC addresses
548 * and the two 8-bit values version, and numPorts. We
549 * have to swap them on big endian systems.
550 */
551 ql_swap_mac_addr(qdev->nvram_data.funcCfg_fn0.macAddress);
552 ql_swap_mac_addr(qdev->nvram_data.funcCfg_fn1.macAddress);
553 ql_swap_mac_addr(qdev->nvram_data.funcCfg_fn2.macAddress);
554 ql_swap_mac_addr(qdev->nvram_data.funcCfg_fn3.macAddress);
555 pEEPROMData = (u16 *) & qdev->nvram_data.version;
556 *pEEPROMData = le16_to_cpu(*pEEPROMData);
557
558 spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
559 return checksum;
560}
561
562static const u32 PHYAddr[2] = {
563 PORT0_PHY_ADDRESS, PORT1_PHY_ADDRESS
564};
565
566static int ql_wait_for_mii_ready(struct ql3_adapter *qdev)
567{
568 struct ql3xxx_port_registers __iomem *port_regs =
569 qdev->mem_map_registers;
570 u32 temp;
571 int count = 1000;
572
573 while (count) {
574 temp = ql_read_page0_reg(qdev, &port_regs->macMIIStatusReg);
575 if (!(temp & MAC_MII_STATUS_BSY))
576 return 0;
577 udelay(10);
578 count--;
579 }
580 return -1;
581}
582
583static void ql_mii_enable_scan_mode(struct ql3_adapter *qdev)
584{
585 struct ql3xxx_port_registers __iomem *port_regs =
586 qdev->mem_map_registers;
587 u32 scanControl;
588
589 if (qdev->numPorts > 1) {
590 /* Auto scan will cycle through multiple ports */
591 scanControl = MAC_MII_CONTROL_AS | MAC_MII_CONTROL_SC;
592 } else {
593 scanControl = MAC_MII_CONTROL_SC;
594 }
595
596 /*
597 * Scan register 1 of PHY/PETBI,
598 * Set up to scan both devices
599 * The autoscan starts from the first register, completes
600 * the last one before rolling over to the first
601 */
602 ql_write_page0_reg(qdev, &port_regs->macMIIMgmtAddrReg,
603 PHYAddr[0] | MII_SCAN_REGISTER);
604
605 ql_write_page0_reg(qdev, &port_regs->macMIIMgmtControlReg,
606 (scanControl) |
607 ((MAC_MII_CONTROL_SC | MAC_MII_CONTROL_AS) << 16));
608}
609
610static u8 ql_mii_disable_scan_mode(struct ql3_adapter *qdev)
611{
612 u8 ret;
613 struct ql3xxx_port_registers __iomem *port_regs =
614 qdev->mem_map_registers;
615
616 /* See if scan mode is enabled before we turn it off */
617 if (ql_read_page0_reg(qdev, &port_regs->macMIIMgmtControlReg) &
618 (MAC_MII_CONTROL_AS | MAC_MII_CONTROL_SC)) {
619 /* Scan is enabled */
620 ret = 1;
621 } else {
622 /* Scan is disabled */
623 ret = 0;
624 }
625
626 /*
627 * When disabling scan mode you must first change the MII register
628 * address
629 */
630 ql_write_page0_reg(qdev, &port_regs->macMIIMgmtAddrReg,
631 PHYAddr[0] | MII_SCAN_REGISTER);
632
633 ql_write_page0_reg(qdev, &port_regs->macMIIMgmtControlReg,
634 ((MAC_MII_CONTROL_SC | MAC_MII_CONTROL_AS |
635 MAC_MII_CONTROL_RC) << 16));
636
637 return ret;
638}
639
640static int ql_mii_write_reg_ex(struct ql3_adapter *qdev,
641 u16 regAddr, u16 value, u32 mac_index)
642{
643 struct ql3xxx_port_registers __iomem *port_regs =
644 qdev->mem_map_registers;
645 u8 scanWasEnabled;
646
647 scanWasEnabled = ql_mii_disable_scan_mode(qdev);
648
649 if (ql_wait_for_mii_ready(qdev)) {
650 if (netif_msg_link(qdev))
651 printk(KERN_WARNING PFX
652 "%s Timed out waiting for management port to "
653 "get free before issuing command.\n",
654 qdev->ndev->name);
655 return -1;
656 }
657
658 ql_write_page0_reg(qdev, &port_regs->macMIIMgmtAddrReg,
659 PHYAddr[mac_index] | regAddr);
660
661 ql_write_page0_reg(qdev, &port_regs->macMIIMgmtDataReg, value);
662
663 /* Wait for write to complete 9/10/04 SJP */
664 if (ql_wait_for_mii_ready(qdev)) {
665 if (netif_msg_link(qdev))
666 printk(KERN_WARNING PFX
667 "%s: Timed out waiting for management port to"
668 "get free before issuing command.\n",
669 qdev->ndev->name);
670 return -1;
671 }
672
673 if (scanWasEnabled)
674 ql_mii_enable_scan_mode(qdev);
675
676 return 0;
677}
678
679static int ql_mii_read_reg_ex(struct ql3_adapter *qdev, u16 regAddr,
680 u16 * value, u32 mac_index)
681{
682 struct ql3xxx_port_registers __iomem *port_regs =
683 qdev->mem_map_registers;
684 u8 scanWasEnabled;
685 u32 temp;
686
687 scanWasEnabled = ql_mii_disable_scan_mode(qdev);
688
689 if (ql_wait_for_mii_ready(qdev)) {
690 if (netif_msg_link(qdev))
691 printk(KERN_WARNING PFX
692 "%s: Timed out waiting for management port to "
693 "get free before issuing command.\n",
694 qdev->ndev->name);
695 return -1;
696 }
697
698 ql_write_page0_reg(qdev, &port_regs->macMIIMgmtAddrReg,
699 PHYAddr[mac_index] | regAddr);
700
701 ql_write_page0_reg(qdev, &port_regs->macMIIMgmtControlReg,
702 (MAC_MII_CONTROL_RC << 16));
703
704 ql_write_page0_reg(qdev, &port_regs->macMIIMgmtControlReg,
705 (MAC_MII_CONTROL_RC << 16) | MAC_MII_CONTROL_RC);
706
707 /* Wait for the read to complete */
708 if (ql_wait_for_mii_ready(qdev)) {
709 if (netif_msg_link(qdev))
710 printk(KERN_WARNING PFX
711 "%s: Timed out waiting for management port to "
712 "get free after issuing command.\n",
713 qdev->ndev->name);
714 return -1;
715 }
716
717 temp = ql_read_page0_reg(qdev, &port_regs->macMIIMgmtDataReg);
718 *value = (u16) temp;
719
720 if (scanWasEnabled)
721 ql_mii_enable_scan_mode(qdev);
722
723 return 0;
724}
725
726static int ql_mii_write_reg(struct ql3_adapter *qdev, u16 regAddr, u16 value)
727{
728 struct ql3xxx_port_registers __iomem *port_regs =
729 qdev->mem_map_registers;
730
731 ql_mii_disable_scan_mode(qdev);
732
733 if (ql_wait_for_mii_ready(qdev)) {
734 if (netif_msg_link(qdev))
735 printk(KERN_WARNING PFX
736 "%s: Timed out waiting for management port to "
737 "get free before issuing command.\n",
738 qdev->ndev->name);
739 return -1;
740 }
741
742 ql_write_page0_reg(qdev, &port_regs->macMIIMgmtAddrReg,
743 qdev->PHYAddr | regAddr);
744
745 ql_write_page0_reg(qdev, &port_regs->macMIIMgmtDataReg, value);
746
747 /* Wait for write to complete. */
748 if (ql_wait_for_mii_ready(qdev)) {
749 if (netif_msg_link(qdev))
750 printk(KERN_WARNING PFX
751 "%s: Timed out waiting for management port to "
752 "get free before issuing command.\n",
753 qdev->ndev->name);
754 return -1;
755 }
756
757 ql_mii_enable_scan_mode(qdev);
758
759 return 0;
760}
761
762static int ql_mii_read_reg(struct ql3_adapter *qdev, u16 regAddr, u16 *value)
763{
764 u32 temp;
765 struct ql3xxx_port_registers __iomem *port_regs =
766 qdev->mem_map_registers;
767
768 ql_mii_disable_scan_mode(qdev);
769
770 if (ql_wait_for_mii_ready(qdev)) {
771 if (netif_msg_link(qdev))
772 printk(KERN_WARNING PFX
773 "%s: Timed out waiting for management port to "
774 "get free before issuing command.\n",
775 qdev->ndev->name);
776 return -1;
777 }
778
779 ql_write_page0_reg(qdev, &port_regs->macMIIMgmtAddrReg,
780 qdev->PHYAddr | regAddr);
781
782 ql_write_page0_reg(qdev, &port_regs->macMIIMgmtControlReg,
783 (MAC_MII_CONTROL_RC << 16));
784
785 ql_write_page0_reg(qdev, &port_regs->macMIIMgmtControlReg,
786 (MAC_MII_CONTROL_RC << 16) | MAC_MII_CONTROL_RC);
787
788 /* Wait for the read to complete */
789 if (ql_wait_for_mii_ready(qdev)) {
790 if (netif_msg_link(qdev))
791 printk(KERN_WARNING PFX
792 "%s: Timed out waiting for management port to "
793 "get free before issuing command.\n",
794 qdev->ndev->name);
795 return -1;
796 }
797
798 temp = ql_read_page0_reg(qdev, &port_regs->macMIIMgmtDataReg);
799 *value = (u16) temp;
800
801 ql_mii_enable_scan_mode(qdev);
802
803 return 0;
804}
805
806static void ql_petbi_reset(struct ql3_adapter *qdev)
807{
808 ql_mii_write_reg(qdev, PETBI_CONTROL_REG, PETBI_CTRL_SOFT_RESET);
809}
810
811static void ql_petbi_start_neg(struct ql3_adapter *qdev)
812{
813 u16 reg;
814
815 /* Enable Auto-negotiation sense */
816 ql_mii_read_reg(qdev, PETBI_TBI_CTRL, &reg);
817 reg |= PETBI_TBI_AUTO_SENSE;
818 ql_mii_write_reg(qdev, PETBI_TBI_CTRL, reg);
819
820 ql_mii_write_reg(qdev, PETBI_NEG_ADVER,
821 PETBI_NEG_PAUSE | PETBI_NEG_DUPLEX);
822
823 ql_mii_write_reg(qdev, PETBI_CONTROL_REG,
824 PETBI_CTRL_AUTO_NEG | PETBI_CTRL_RESTART_NEG |
825 PETBI_CTRL_FULL_DUPLEX | PETBI_CTRL_SPEED_1000);
826
827}
828
829static void ql_petbi_reset_ex(struct ql3_adapter *qdev, u32 mac_index)
830{
831 ql_mii_write_reg_ex(qdev, PETBI_CONTROL_REG, PETBI_CTRL_SOFT_RESET,
832 mac_index);
833}
834
835static void ql_petbi_start_neg_ex(struct ql3_adapter *qdev, u32 mac_index)
836{
837 u16 reg;
838
839 /* Enable Auto-negotiation sense */
840 ql_mii_read_reg_ex(qdev, PETBI_TBI_CTRL, &reg, mac_index);
841 reg |= PETBI_TBI_AUTO_SENSE;
842 ql_mii_write_reg_ex(qdev, PETBI_TBI_CTRL, reg, mac_index);
843
844 ql_mii_write_reg_ex(qdev, PETBI_NEG_ADVER,
845 PETBI_NEG_PAUSE | PETBI_NEG_DUPLEX, mac_index);
846
847 ql_mii_write_reg_ex(qdev, PETBI_CONTROL_REG,
848 PETBI_CTRL_AUTO_NEG | PETBI_CTRL_RESTART_NEG |
849 PETBI_CTRL_FULL_DUPLEX | PETBI_CTRL_SPEED_1000,
850 mac_index);
851}
852
853static void ql_petbi_init(struct ql3_adapter *qdev)
854{
855 ql_petbi_reset(qdev);
856 ql_petbi_start_neg(qdev);
857}
858
859static void ql_petbi_init_ex(struct ql3_adapter *qdev, u32 mac_index)
860{
861 ql_petbi_reset_ex(qdev, mac_index);
862 ql_petbi_start_neg_ex(qdev, mac_index);
863}
864
865static int ql_is_petbi_neg_pause(struct ql3_adapter *qdev)
866{
867 u16 reg;
868
869 if (ql_mii_read_reg(qdev, PETBI_NEG_PARTNER, &reg) < 0)
870 return 0;
871
872 return (reg & PETBI_NEG_PAUSE_MASK) == PETBI_NEG_PAUSE;
873}
874
875static int ql_phy_get_speed(struct ql3_adapter *qdev)
876{
877 u16 reg;
878
879 if (ql_mii_read_reg(qdev, AUX_CONTROL_STATUS, &reg) < 0)
880 return 0;
881
882 reg = (((reg & 0x18) >> 3) & 3);
883
884 if (reg == 2)
885 return SPEED_1000;
886 else if (reg == 1)
887 return SPEED_100;
888 else if (reg == 0)
889 return SPEED_10;
890 else
891 return -1;
892}
893
894static int ql_is_full_dup(struct ql3_adapter *qdev)
895{
896 u16 reg;
897
898 if (ql_mii_read_reg(qdev, AUX_CONTROL_STATUS, &reg) < 0)
899 return 0;
900
901 return (reg & PHY_AUX_DUPLEX_STAT) != 0;
902}
903
904static int ql_is_phy_neg_pause(struct ql3_adapter *qdev)
905{
906 u16 reg;
907
908 if (ql_mii_read_reg(qdev, PHY_NEG_PARTNER, &reg) < 0)
909 return 0;
910
911 return (reg & PHY_NEG_PAUSE) != 0;
912}
913
914/*
915 * Caller holds hw_lock.
916 */
917static void ql_mac_enable(struct ql3_adapter *qdev, u32 enable)
918{
919 struct ql3xxx_port_registers __iomem *port_regs =
920 qdev->mem_map_registers;
921 u32 value;
922
923 if (enable)
924 value = (MAC_CONFIG_REG_PE | (MAC_CONFIG_REG_PE << 16));
925 else
926 value = (MAC_CONFIG_REG_PE << 16);
927
928 if (qdev->mac_index)
929 ql_write_page0_reg(qdev, &port_regs->mac1ConfigReg, value);
930 else
931 ql_write_page0_reg(qdev, &port_regs->mac0ConfigReg, value);
932}
933
934/*
935 * Caller holds hw_lock.
936 */
937static void ql_mac_cfg_soft_reset(struct ql3_adapter *qdev, u32 enable)
938{
939 struct ql3xxx_port_registers __iomem *port_regs =
940 qdev->mem_map_registers;
941 u32 value;
942
943 if (enable)
944 value = (MAC_CONFIG_REG_SR | (MAC_CONFIG_REG_SR << 16));
945 else
946 value = (MAC_CONFIG_REG_SR << 16);
947
948 if (qdev->mac_index)
949 ql_write_page0_reg(qdev, &port_regs->mac1ConfigReg, value);
950 else
951 ql_write_page0_reg(qdev, &port_regs->mac0ConfigReg, value);
952}
953
954/*
955 * Caller holds hw_lock.
956 */
957static void ql_mac_cfg_gig(struct ql3_adapter *qdev, u32 enable)
958{
959 struct ql3xxx_port_registers __iomem *port_regs =
960 qdev->mem_map_registers;
961 u32 value;
962
963 if (enable)
964 value = (MAC_CONFIG_REG_GM | (MAC_CONFIG_REG_GM << 16));
965 else
966 value = (MAC_CONFIG_REG_GM << 16);
967
968 if (qdev->mac_index)
969 ql_write_page0_reg(qdev, &port_regs->mac1ConfigReg, value);
970 else
971 ql_write_page0_reg(qdev, &port_regs->mac0ConfigReg, value);
972}
973
974/*
975 * Caller holds hw_lock.
976 */
977static void ql_mac_cfg_full_dup(struct ql3_adapter *qdev, u32 enable)
978{
979 struct ql3xxx_port_registers __iomem *port_regs =
980 qdev->mem_map_registers;
981 u32 value;
982
983 if (enable)
984 value = (MAC_CONFIG_REG_FD | (MAC_CONFIG_REG_FD << 16));
985 else
986 value = (MAC_CONFIG_REG_FD << 16);
987
988 if (qdev->mac_index)
989 ql_write_page0_reg(qdev, &port_regs->mac1ConfigReg, value);
990 else
991 ql_write_page0_reg(qdev, &port_regs->mac0ConfigReg, value);
992}
993
994/*
995 * Caller holds hw_lock.
996 */
997static void ql_mac_cfg_pause(struct ql3_adapter *qdev, u32 enable)
998{
999 struct ql3xxx_port_registers __iomem *port_regs =
1000 qdev->mem_map_registers;
1001 u32 value;
1002
1003 if (enable)
1004 value =
1005 ((MAC_CONFIG_REG_TF | MAC_CONFIG_REG_RF) |
1006 ((MAC_CONFIG_REG_TF | MAC_CONFIG_REG_RF) << 16));
1007 else
1008 value = ((MAC_CONFIG_REG_TF | MAC_CONFIG_REG_RF) << 16);
1009
1010 if (qdev->mac_index)
1011 ql_write_page0_reg(qdev, &port_regs->mac1ConfigReg, value);
1012 else
1013 ql_write_page0_reg(qdev, &port_regs->mac0ConfigReg, value);
1014}
1015
1016/*
1017 * Caller holds hw_lock.
1018 */
1019static int ql_is_fiber(struct ql3_adapter *qdev)
1020{
1021 struct ql3xxx_port_registers __iomem *port_regs =
1022 qdev->mem_map_registers;
1023 u32 bitToCheck = 0;
1024 u32 temp;
1025
1026 switch (qdev->mac_index) {
1027 case 0:
1028 bitToCheck = PORT_STATUS_SM0;
1029 break;
1030 case 1:
1031 bitToCheck = PORT_STATUS_SM1;
1032 break;
1033 }
1034
1035 temp = ql_read_page0_reg(qdev, &port_regs->portStatus);
1036 return (temp & bitToCheck) != 0;
1037}
1038
1039static int ql_is_auto_cfg(struct ql3_adapter *qdev)
1040{
1041 u16 reg;
1042 ql_mii_read_reg(qdev, 0x00, &reg);
1043 return (reg & 0x1000) != 0;
1044}
1045
1046/*
1047 * Caller holds hw_lock.
1048 */
1049static int ql_is_auto_neg_complete(struct ql3_adapter *qdev)
1050{
1051 struct ql3xxx_port_registers __iomem *port_regs =
1052 qdev->mem_map_registers;
1053 u32 bitToCheck = 0;
1054 u32 temp;
1055
1056 switch (qdev->mac_index) {
1057 case 0:
1058 bitToCheck = PORT_STATUS_AC0;
1059 break;
1060 case 1:
1061 bitToCheck = PORT_STATUS_AC1;
1062 break;
1063 }
1064
1065 temp = ql_read_page0_reg(qdev, &port_regs->portStatus);
1066 if (temp & bitToCheck) {
1067 if (netif_msg_link(qdev))
1068 printk(KERN_INFO PFX
1069 "%s: Auto-Negotiate complete.\n",
1070 qdev->ndev->name);
1071 return 1;
1072 } else {
1073 if (netif_msg_link(qdev))
1074 printk(KERN_WARNING PFX
1075 "%s: Auto-Negotiate incomplete.\n",
1076 qdev->ndev->name);
1077 return 0;
1078 }
1079}
1080
1081/*
1082 * ql_is_neg_pause() returns 1 if pause was negotiated to be on
1083 */
1084static int ql_is_neg_pause(struct ql3_adapter *qdev)
1085{
1086 if (ql_is_fiber(qdev))
1087 return ql_is_petbi_neg_pause(qdev);
1088 else
1089 return ql_is_phy_neg_pause(qdev);
1090}
1091
1092static int ql_auto_neg_error(struct ql3_adapter *qdev)
1093{
1094 struct ql3xxx_port_registers __iomem *port_regs =
1095 qdev->mem_map_registers;
1096 u32 bitToCheck = 0;
1097 u32 temp;
1098
1099 switch (qdev->mac_index) {
1100 case 0:
1101 bitToCheck = PORT_STATUS_AE0;
1102 break;
1103 case 1:
1104 bitToCheck = PORT_STATUS_AE1;
1105 break;
1106 }
1107 temp = ql_read_page0_reg(qdev, &port_regs->portStatus);
1108 return (temp & bitToCheck) != 0;
1109}
1110
1111static u32 ql_get_link_speed(struct ql3_adapter *qdev)
1112{
1113 if (ql_is_fiber(qdev))
1114 return SPEED_1000;
1115 else
1116 return ql_phy_get_speed(qdev);
1117}
1118
1119static int ql_is_link_full_dup(struct ql3_adapter *qdev)
1120{
1121 if (ql_is_fiber(qdev))
1122 return 1;
1123 else
1124 return ql_is_full_dup(qdev);
1125}
1126
1127/*
1128 * Caller holds hw_lock.
1129 */
1130static int ql_link_down_detect(struct ql3_adapter *qdev)
1131{
1132 struct ql3xxx_port_registers __iomem *port_regs =
1133 qdev->mem_map_registers;
1134 u32 bitToCheck = 0;
1135 u32 temp;
1136
1137 switch (qdev->mac_index) {
1138 case 0:
1139 bitToCheck = ISP_CONTROL_LINK_DN_0;
1140 break;
1141 case 1:
1142 bitToCheck = ISP_CONTROL_LINK_DN_1;
1143 break;
1144 }
1145
1146 temp =
1147 ql_read_common_reg(qdev, &port_regs->CommonRegs.ispControlStatus);
1148 return (temp & bitToCheck) != 0;
1149}
1150
1151/*
1152 * Caller holds hw_lock.
1153 */
1154static int ql_link_down_detect_clear(struct ql3_adapter *qdev)
1155{
1156 struct ql3xxx_port_registers __iomem *port_regs =
1157 qdev->mem_map_registers;
1158
1159 switch (qdev->mac_index) {
1160 case 0:
1161 ql_write_common_reg(qdev,
1162 &port_regs->CommonRegs.ispControlStatus,
1163 (ISP_CONTROL_LINK_DN_0) |
1164 (ISP_CONTROL_LINK_DN_0 << 16));
1165 break;
1166
1167 case 1:
1168 ql_write_common_reg(qdev,
1169 &port_regs->CommonRegs.ispControlStatus,
1170 (ISP_CONTROL_LINK_DN_1) |
1171 (ISP_CONTROL_LINK_DN_1 << 16));
1172 break;
1173
1174 default:
1175 return 1;
1176 }
1177
1178 return 0;
1179}
1180
1181/*
1182 * Caller holds hw_lock.
1183 */
1184static int ql_this_adapter_controls_port(struct ql3_adapter *qdev,
1185 u32 mac_index)
1186{
1187 struct ql3xxx_port_registers __iomem *port_regs =
1188 qdev->mem_map_registers;
1189 u32 bitToCheck = 0;
1190 u32 temp;
1191
1192 switch (mac_index) {
1193 case 0:
1194 bitToCheck = PORT_STATUS_F1_ENABLED;
1195 break;
1196 case 1:
1197 bitToCheck = PORT_STATUS_F3_ENABLED;
1198 break;
1199 default:
1200 break;
1201 }
1202
1203 temp = ql_read_page0_reg(qdev, &port_regs->portStatus);
1204 if (temp & bitToCheck) {
1205 if (netif_msg_link(qdev))
1206 printk(KERN_DEBUG PFX
1207 "%s: is not link master.\n", qdev->ndev->name);
1208 return 0;
1209 } else {
1210 if (netif_msg_link(qdev))
1211 printk(KERN_DEBUG PFX
1212 "%s: is link master.\n", qdev->ndev->name);
1213 return 1;
1214 }
1215}
1216
1217static void ql_phy_reset_ex(struct ql3_adapter *qdev, u32 mac_index)
1218{
1219 ql_mii_write_reg_ex(qdev, CONTROL_REG, PHY_CTRL_SOFT_RESET, mac_index);
1220}
1221
1222static void ql_phy_start_neg_ex(struct ql3_adapter *qdev, u32 mac_index)
1223{
1224 u16 reg;
1225
1226 ql_mii_write_reg_ex(qdev, PHY_NEG_ADVER,
1227 PHY_NEG_PAUSE | PHY_NEG_ADV_SPEED | 1, mac_index);
1228
1229 ql_mii_read_reg_ex(qdev, CONTROL_REG, &reg, mac_index);
1230 ql_mii_write_reg_ex(qdev, CONTROL_REG, reg | PHY_CTRL_RESTART_NEG,
1231 mac_index);
1232}
1233
1234static void ql_phy_init_ex(struct ql3_adapter *qdev, u32 mac_index)
1235{
1236 ql_phy_reset_ex(qdev, mac_index);
1237 ql_phy_start_neg_ex(qdev, mac_index);
1238}
1239
1240/*
1241 * Caller holds hw_lock.
1242 */
1243static u32 ql_get_link_state(struct ql3_adapter *qdev)
1244{
1245 struct ql3xxx_port_registers __iomem *port_regs =
1246 qdev->mem_map_registers;
1247 u32 bitToCheck = 0;
1248 u32 temp, linkState;
1249
1250 switch (qdev->mac_index) {
1251 case 0:
1252 bitToCheck = PORT_STATUS_UP0;
1253 break;
1254 case 1:
1255 bitToCheck = PORT_STATUS_UP1;
1256 break;
1257 }
1258 temp = ql_read_page0_reg(qdev, &port_regs->portStatus);
1259 if (temp & bitToCheck) {
1260 linkState = LS_UP;
1261 } else {
1262 linkState = LS_DOWN;
1263 if (netif_msg_link(qdev))
1264 printk(KERN_WARNING PFX
1265 "%s: Link is down.\n", qdev->ndev->name);
1266 }
1267 return linkState;
1268}
1269
1270static int ql_port_start(struct ql3_adapter *qdev)
1271{
1272 if(ql_sem_spinlock(qdev, QL_PHY_GIO_SEM_MASK,
1273 (QL_RESOURCE_BITS_BASE_CODE | (qdev->mac_index) *
1274 2) << 7))
1275 return -1;
1276
1277 if (ql_is_fiber(qdev)) {
1278 ql_petbi_init(qdev);
1279 } else {
1280 /* Copper port */
1281 ql_phy_init_ex(qdev, qdev->mac_index);
1282 }
1283
1284 ql_sem_unlock(qdev, QL_PHY_GIO_SEM_MASK);
1285 return 0;
1286}
1287
1288static int ql_finish_auto_neg(struct ql3_adapter *qdev)
1289{
1290
1291 if(ql_sem_spinlock(qdev, QL_PHY_GIO_SEM_MASK,
1292 (QL_RESOURCE_BITS_BASE_CODE | (qdev->mac_index) *
1293 2) << 7))
1294 return -1;
1295
1296 if (!ql_auto_neg_error(qdev)) {
1297 if (test_bit(QL_LINK_MASTER,&qdev->flags)) {
1298 /* configure the MAC */
1299 if (netif_msg_link(qdev))
1300 printk(KERN_DEBUG PFX
1301 "%s: Configuring link.\n",
1302 qdev->ndev->
1303 name);
1304 ql_mac_cfg_soft_reset(qdev, 1);
1305 ql_mac_cfg_gig(qdev,
1306 (ql_get_link_speed
1307 (qdev) ==
1308 SPEED_1000));
1309 ql_mac_cfg_full_dup(qdev,
1310 ql_is_link_full_dup
1311 (qdev));
1312 ql_mac_cfg_pause(qdev,
1313 ql_is_neg_pause
1314 (qdev));
1315 ql_mac_cfg_soft_reset(qdev, 0);
1316
1317 /* enable the MAC */
1318 if (netif_msg_link(qdev))
1319 printk(KERN_DEBUG PFX
1320 "%s: Enabling mac.\n",
1321 qdev->ndev->
1322 name);
1323 ql_mac_enable(qdev, 1);
1324 }
1325
1326 if (netif_msg_link(qdev))
1327 printk(KERN_DEBUG PFX
1328 "%s: Change port_link_state LS_DOWN to LS_UP.\n",
1329 qdev->ndev->name);
1330 qdev->port_link_state = LS_UP;
1331 netif_start_queue(qdev->ndev);
1332 netif_carrier_on(qdev->ndev);
1333 if (netif_msg_link(qdev))
1334 printk(KERN_INFO PFX
1335 "%s: Link is up at %d Mbps, %s duplex.\n",
1336 qdev->ndev->name,
1337 ql_get_link_speed(qdev),
1338 ql_is_link_full_dup(qdev)
1339 ? "full" : "half");
1340
1341 } else { /* Remote error detected */
1342
1343 if (test_bit(QL_LINK_MASTER,&qdev->flags)) {
1344 if (netif_msg_link(qdev))
1345 printk(KERN_DEBUG PFX
1346 "%s: Remote error detected. "
1347 "Calling ql_port_start().\n",
1348 qdev->ndev->
1349 name);
1350 /*
1351 * ql_port_start() is shared code and needs
1352 * to lock the PHY on it's own.
1353 */
1354 ql_sem_unlock(qdev, QL_PHY_GIO_SEM_MASK);
1355 if(ql_port_start(qdev)) {/* Restart port */
1356 return -1;
1357 } else
1358 return 0;
1359 }
1360 }
1361 ql_sem_unlock(qdev, QL_PHY_GIO_SEM_MASK);
1362 return 0;
1363}
1364
1365static void ql_link_state_machine(struct ql3_adapter *qdev)
1366{
1367 u32 curr_link_state;
1368 unsigned long hw_flags;
1369
1370 spin_lock_irqsave(&qdev->hw_lock, hw_flags);
1371
1372 curr_link_state = ql_get_link_state(qdev);
1373
1374 if (test_bit(QL_RESET_ACTIVE,&qdev->flags)) {
1375 if (netif_msg_link(qdev))
1376 printk(KERN_INFO PFX
1377 "%s: Reset in progress, skip processing link "
1378 "state.\n", qdev->ndev->name);
1379 return;
1380 }
1381
1382 switch (qdev->port_link_state) {
1383 default:
1384 if (test_bit(QL_LINK_MASTER,&qdev->flags)) {
1385 ql_port_start(qdev);
1386 }
1387 qdev->port_link_state = LS_DOWN;
1388 /* Fall Through */
1389
1390 case LS_DOWN:
1391 if (netif_msg_link(qdev))
1392 printk(KERN_DEBUG PFX
1393 "%s: port_link_state = LS_DOWN.\n",
1394 qdev->ndev->name);
1395 if (curr_link_state == LS_UP) {
1396 if (netif_msg_link(qdev))
1397 printk(KERN_DEBUG PFX
1398 "%s: curr_link_state = LS_UP.\n",
1399 qdev->ndev->name);
1400 if (ql_is_auto_neg_complete(qdev))
1401 ql_finish_auto_neg(qdev);
1402
1403 if (qdev->port_link_state == LS_UP)
1404 ql_link_down_detect_clear(qdev);
1405
1406 }
1407 break;
1408
1409 case LS_UP:
1410 /*
1411 * See if the link is currently down or went down and came
1412 * back up
1413 */
1414 if ((curr_link_state == LS_DOWN) || ql_link_down_detect(qdev)) {
1415 if (netif_msg_link(qdev))
1416 printk(KERN_INFO PFX "%s: Link is down.\n",
1417 qdev->ndev->name);
1418 qdev->port_link_state = LS_DOWN;
1419 }
1420 break;
1421 }
1422 spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
1423}
1424
1425/*
1426 * Caller must take hw_lock and QL_PHY_GIO_SEM.
1427 */
1428static void ql_get_phy_owner(struct ql3_adapter *qdev)
1429{
1430 if (ql_this_adapter_controls_port(qdev, qdev->mac_index))
1431 set_bit(QL_LINK_MASTER,&qdev->flags);
1432 else
1433 clear_bit(QL_LINK_MASTER,&qdev->flags);
1434}
1435
1436/*
1437 * Caller must take hw_lock and QL_PHY_GIO_SEM.
1438 */
1439static void ql_init_scan_mode(struct ql3_adapter *qdev)
1440{
1441 ql_mii_enable_scan_mode(qdev);
1442
1443 if (test_bit(QL_LINK_OPTICAL,&qdev->flags)) {
1444 if (ql_this_adapter_controls_port(qdev, qdev->mac_index))
1445 ql_petbi_init_ex(qdev, qdev->mac_index);
1446 } else {
1447 if (ql_this_adapter_controls_port(qdev, qdev->mac_index))
1448 ql_phy_init_ex(qdev, qdev->mac_index);
1449 }
1450}
1451
1452/*
1453 * MII_Setup needs to be called before taking the PHY out of reset so that the
1454 * management interface clock speed can be set properly. It would be better if
1455 * we had a way to disable MDC until after the PHY is out of reset, but we
1456 * don't have that capability.
1457 */
1458static int ql_mii_setup(struct ql3_adapter *qdev)
1459{
1460 u32 reg;
1461 struct ql3xxx_port_registers __iomem *port_regs =
1462 qdev->mem_map_registers;
1463
1464 if(ql_sem_spinlock(qdev, QL_PHY_GIO_SEM_MASK,
1465 (QL_RESOURCE_BITS_BASE_CODE | (qdev->mac_index) *
1466 2) << 7))
1467 return -1;
1468
1469 /* Divide 125MHz clock by 28 to meet PHY timing requirements */
1470 reg = MAC_MII_CONTROL_CLK_SEL_DIV28;
1471
1472 ql_write_page0_reg(qdev, &port_regs->macMIIMgmtControlReg,
1473 reg | ((MAC_MII_CONTROL_CLK_SEL_MASK) << 16));
1474
1475 ql_sem_unlock(qdev, QL_PHY_GIO_SEM_MASK);
1476 return 0;
1477}
1478
1479static u32 ql_supported_modes(struct ql3_adapter *qdev)
1480{
1481 u32 supported;
1482
1483 if (test_bit(QL_LINK_OPTICAL,&qdev->flags)) {
1484 supported = SUPPORTED_1000baseT_Full | SUPPORTED_FIBRE
1485 | SUPPORTED_Autoneg;
1486 } else {
1487 supported = SUPPORTED_10baseT_Half
1488 | SUPPORTED_10baseT_Full
1489 | SUPPORTED_100baseT_Half
1490 | SUPPORTED_100baseT_Full
1491 | SUPPORTED_1000baseT_Half
1492 | SUPPORTED_1000baseT_Full
1493 | SUPPORTED_Autoneg | SUPPORTED_TP;
1494 }
1495
1496 return supported;
1497}
1498
1499static int ql_get_auto_cfg_status(struct ql3_adapter *qdev)
1500{
1501 int status;
1502 unsigned long hw_flags;
1503 spin_lock_irqsave(&qdev->hw_lock, hw_flags);
1504 if(ql_sem_spinlock(qdev, QL_PHY_GIO_SEM_MASK,
1505 (QL_RESOURCE_BITS_BASE_CODE | (qdev->mac_index) *
1506 2) << 7))
1507 return 0;
1508 status = ql_is_auto_cfg(qdev);
1509 ql_sem_unlock(qdev, QL_PHY_GIO_SEM_MASK);
1510 spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
1511 return status;
1512}
1513
1514static u32 ql_get_speed(struct ql3_adapter *qdev)
1515{
1516 u32 status;
1517 unsigned long hw_flags;
1518 spin_lock_irqsave(&qdev->hw_lock, hw_flags);
1519 if(ql_sem_spinlock(qdev, QL_PHY_GIO_SEM_MASK,
1520 (QL_RESOURCE_BITS_BASE_CODE | (qdev->mac_index) *
1521 2) << 7))
1522 return 0;
1523 status = ql_get_link_speed(qdev);
1524 ql_sem_unlock(qdev, QL_PHY_GIO_SEM_MASK);
1525 spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
1526 return status;
1527}
1528
1529static int ql_get_full_dup(struct ql3_adapter *qdev)
1530{
1531 int status;
1532 unsigned long hw_flags;
1533 spin_lock_irqsave(&qdev->hw_lock, hw_flags);
1534 if(ql_sem_spinlock(qdev, QL_PHY_GIO_SEM_MASK,
1535 (QL_RESOURCE_BITS_BASE_CODE | (qdev->mac_index) *
1536 2) << 7))
1537 return 0;
1538 status = ql_is_link_full_dup(qdev);
1539 ql_sem_unlock(qdev, QL_PHY_GIO_SEM_MASK);
1540 spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
1541 return status;
1542}
1543
1544
1545static int ql_get_settings(struct net_device *ndev, struct ethtool_cmd *ecmd)
1546{
1547 struct ql3_adapter *qdev = netdev_priv(ndev);
1548
1549 ecmd->transceiver = XCVR_INTERNAL;
1550 ecmd->supported = ql_supported_modes(qdev);
1551
1552 if (test_bit(QL_LINK_OPTICAL,&qdev->flags)) {
1553 ecmd->port = PORT_FIBRE;
1554 } else {
1555 ecmd->port = PORT_TP;
1556 ecmd->phy_address = qdev->PHYAddr;
1557 }
1558 ecmd->advertising = ql_supported_modes(qdev);
1559 ecmd->autoneg = ql_get_auto_cfg_status(qdev);
1560 ecmd->speed = ql_get_speed(qdev);
1561 ecmd->duplex = ql_get_full_dup(qdev);
1562 return 0;
1563}
1564
1565static void ql_get_drvinfo(struct net_device *ndev,
1566 struct ethtool_drvinfo *drvinfo)
1567{
1568 struct ql3_adapter *qdev = netdev_priv(ndev);
1569 strncpy(drvinfo->driver, ql3xxx_driver_name, 32);
1570 strncpy(drvinfo->version, ql3xxx_driver_version, 32);
1571 strncpy(drvinfo->fw_version, "N/A", 32);
1572 strncpy(drvinfo->bus_info, pci_name(qdev->pdev), 32);
1573 drvinfo->n_stats = 0;
1574 drvinfo->testinfo_len = 0;
1575 drvinfo->regdump_len = 0;
1576 drvinfo->eedump_len = 0;
1577}
1578
1579static u32 ql_get_msglevel(struct net_device *ndev)
1580{
1581 struct ql3_adapter *qdev = netdev_priv(ndev);
1582 return qdev->msg_enable;
1583}
1584
1585static void ql_set_msglevel(struct net_device *ndev, u32 value)
1586{
1587 struct ql3_adapter *qdev = netdev_priv(ndev);
1588 qdev->msg_enable = value;
1589}
1590
7282d491 1591static const struct ethtool_ops ql3xxx_ethtool_ops = {
5a4faa87
RM		 1592 .get_settings = ql_get_settings,
1593 .get_drvinfo = ql_get_drvinfo,
1594 .get_perm_addr = ethtool_op_get_perm_addr,
1595 .get_link = ethtool_op_get_link,
1596 .get_msglevel = ql_get_msglevel,
1597 .set_msglevel = ql_set_msglevel,
1598};
1599
1600static int ql_populate_free_queue(struct ql3_adapter *qdev)
1601{
1602 struct ql_rcv_buf_cb *lrg_buf_cb = qdev->lrg_buf_free_head;
1603 u64 map;
1604
1605 while (lrg_buf_cb) {
1606 if (!lrg_buf_cb->skb) {
1607 lrg_buf_cb->skb = dev_alloc_skb(qdev->lrg_buffer_len);
1608 if (unlikely(!lrg_buf_cb->skb)) {
1609 printk(KERN_DEBUG PFX
1610 "%s: Failed dev_alloc_skb().\n",
1611 qdev->ndev->name);
1612 break;
1613 } else {
1614 /*
1615 * We save some space to copy the ethhdr from
1616 * first buffer
1617 */
1618 skb_reserve(lrg_buf_cb->skb, QL_HEADER_SPACE);
1619 map = pci_map_single(qdev->pdev,
1620 lrg_buf_cb->skb->data,
1621 qdev->lrg_buffer_len -
1622 QL_HEADER_SPACE,
1623 PCI_DMA_FROMDEVICE);
1624 lrg_buf_cb->buf_phy_addr_low =
1625 cpu_to_le32(LS_64BITS(map));
1626 lrg_buf_cb->buf_phy_addr_high =
1627 cpu_to_le32(MS_64BITS(map));
1628 pci_unmap_addr_set(lrg_buf_cb, mapaddr, map);
1629 pci_unmap_len_set(lrg_buf_cb, maplen,
1630 qdev->lrg_buffer_len -
1631 QL_HEADER_SPACE);
1632 --qdev->lrg_buf_skb_check;
1633 if (!qdev->lrg_buf_skb_check)
1634 return 1;
1635 }
1636 }
1637 lrg_buf_cb = lrg_buf_cb->next;
1638 }
1639 return 0;
1640}
1641
1642/*
1643 * Caller holds hw_lock.
1644 */
1645static void ql_update_lrg_bufq_prod_index(struct ql3_adapter *qdev)
1646{
1647 struct bufq_addr_element *lrg_buf_q_ele;
1648 int i;
1649 struct ql_rcv_buf_cb *lrg_buf_cb;
1650 struct ql3xxx_port_registers __iomem *port_regs = qdev->mem_map_registers;
1651
1652 if ((qdev->lrg_buf_free_count >= 8)
1653 && (qdev->lrg_buf_release_cnt >= 16)) {
1654
1655 if (qdev->lrg_buf_skb_check)
1656 if (!ql_populate_free_queue(qdev))
1657 return;
1658
1659 lrg_buf_q_ele = qdev->lrg_buf_next_free;
1660
1661 while ((qdev->lrg_buf_release_cnt >= 16)
1662 && (qdev->lrg_buf_free_count >= 8)) {
1663
1664 for (i = 0; i < 8; i++) {
1665 lrg_buf_cb =
1666 ql_get_from_lrg_buf_free_list(qdev);
1667 lrg_buf_q_ele->addr_high =
1668 lrg_buf_cb->buf_phy_addr_high;
1669 lrg_buf_q_ele->addr_low =
1670 lrg_buf_cb->buf_phy_addr_low;
1671 lrg_buf_q_ele++;
1672
1673 qdev->lrg_buf_release_cnt--;
1674 }
1675
1676 qdev->lrg_buf_q_producer_index++;
1677
1678 if (qdev->lrg_buf_q_producer_index == NUM_LBUFQ_ENTRIES)
1679 qdev->lrg_buf_q_producer_index = 0;
1680
1681 if (qdev->lrg_buf_q_producer_index ==
1682 (NUM_LBUFQ_ENTRIES - 1)) {
1683 lrg_buf_q_ele = qdev->lrg_buf_q_virt_addr;
1684 }
1685 }
1686
1687 qdev->lrg_buf_next_free = lrg_buf_q_ele;
1688
1689 ql_write_common_reg(qdev,
1690 (u32 *) & port_regs->CommonRegs.
1691 rxLargeQProducerIndex,
1692 qdev->lrg_buf_q_producer_index);
1693 }
1694}
1695
1696static void ql_process_mac_tx_intr(struct ql3_adapter *qdev,
1697 struct ob_mac_iocb_rsp *mac_rsp)
1698{
1699 struct ql_tx_buf_cb *tx_cb;
1700
1701 tx_cb = &qdev->tx_buf[mac_rsp->transaction_id];
1702 pci_unmap_single(qdev->pdev,
1703 pci_unmap_addr(tx_cb, mapaddr),
1704 pci_unmap_len(tx_cb, maplen), PCI_DMA_TODEVICE);
1705 dev_kfree_skb_irq(tx_cb->skb);
1706 qdev->stats.tx_packets++;
1707 qdev->stats.tx_bytes += tx_cb->skb->len;
1708 tx_cb->skb = NULL;
1709 atomic_inc(&qdev->tx_count);
1710}
1711
1712static void ql_process_mac_rx_intr(struct ql3_adapter *qdev,
1713 struct ib_mac_iocb_rsp *ib_mac_rsp_ptr)
1714{
1715 long int offset;
1716 u32 lrg_buf_phy_addr_low = 0;
1717 struct ql_rcv_buf_cb *lrg_buf_cb1 = NULL;
1718 struct ql_rcv_buf_cb *lrg_buf_cb2 = NULL;
1719 u32 *curr_ial_ptr;
1720 struct sk_buff *skb;
1721 u16 length = le16_to_cpu(ib_mac_rsp_ptr->length);
1722
1723 /*
1724 * Get the inbound address list (small buffer).
1725 */
1726 offset = qdev->small_buf_index * QL_SMALL_BUFFER_SIZE;
1727 if (++qdev->small_buf_index == NUM_SMALL_BUFFERS)
1728 qdev->small_buf_index = 0;
1729
1730 curr_ial_ptr = (u32 *) (qdev->small_buf_virt_addr + offset);
1731 qdev->last_rsp_offset = qdev->small_buf_phy_addr_low + offset;
1732 qdev->small_buf_release_cnt++;
1733
1734 /* start of first buffer */
1735 lrg_buf_phy_addr_low = le32_to_cpu(*curr_ial_ptr);
1736 lrg_buf_cb1 = &qdev->lrg_buf[qdev->lrg_buf_index];
1737 qdev->lrg_buf_release_cnt++;
1738 if (++qdev->lrg_buf_index == NUM_LARGE_BUFFERS)
1739 qdev->lrg_buf_index = 0;
1740 curr_ial_ptr++; /* 64-bit pointers require two incs. */
1741 curr_ial_ptr++;
1742
1743 /* start of second buffer */
1744 lrg_buf_phy_addr_low = le32_to_cpu(*curr_ial_ptr);
1745 lrg_buf_cb2 = &qdev->lrg_buf[qdev->lrg_buf_index];
1746
1747 /*
1748 * Second buffer gets sent up the stack.
1749 */
1750 qdev->lrg_buf_release_cnt++;
1751 if (++qdev->lrg_buf_index == NUM_LARGE_BUFFERS)
1752 qdev->lrg_buf_index = 0;
1753 skb = lrg_buf_cb2->skb;
1754
1755 qdev->stats.rx_packets++;
1756 qdev->stats.rx_bytes += length;
1757
1758 skb_put(skb, length);
1759 pci_unmap_single(qdev->pdev,
1760 pci_unmap_addr(lrg_buf_cb2, mapaddr),
1761 pci_unmap_len(lrg_buf_cb2, maplen),
1762 PCI_DMA_FROMDEVICE);
1763 prefetch(skb->data);
1764 skb->dev = qdev->ndev;
1765 skb->ip_summed = CHECKSUM_NONE;
1766 skb->protocol = eth_type_trans(skb, qdev->ndev);
1767
1768 netif_receive_skb(skb);
1769 qdev->ndev->last_rx = jiffies;
1770 lrg_buf_cb2->skb = NULL;
1771
1772 ql_release_to_lrg_buf_free_list(qdev, lrg_buf_cb1);
1773 ql_release_to_lrg_buf_free_list(qdev, lrg_buf_cb2);
1774}
1775
1776static void ql_process_macip_rx_intr(struct ql3_adapter *qdev,
1777 struct ib_ip_iocb_rsp *ib_ip_rsp_ptr)
1778{
1779 long int offset;
1780 u32 lrg_buf_phy_addr_low = 0;
1781 struct ql_rcv_buf_cb *lrg_buf_cb1 = NULL;
1782 struct ql_rcv_buf_cb *lrg_buf_cb2 = NULL;
1783 u32 *curr_ial_ptr;
1784 struct sk_buff *skb1, *skb2;
1785 struct net_device *ndev = qdev->ndev;
1786 u16 length = le16_to_cpu(ib_ip_rsp_ptr->length);
1787 u16 size = 0;
1788
1789 /*
1790 * Get the inbound address list (small buffer).
1791 */
1792
1793 offset = qdev->small_buf_index * QL_SMALL_BUFFER_SIZE;
1794 if (++qdev->small_buf_index == NUM_SMALL_BUFFERS)
1795 qdev->small_buf_index = 0;
1796 curr_ial_ptr = (u32 *) (qdev->small_buf_virt_addr + offset);
1797 qdev->last_rsp_offset = qdev->small_buf_phy_addr_low + offset;
1798 qdev->small_buf_release_cnt++;
1799
1800 /* start of first buffer */
1801 lrg_buf_phy_addr_low = le32_to_cpu(*curr_ial_ptr);
1802 lrg_buf_cb1 = &qdev->lrg_buf[qdev->lrg_buf_index];
1803
1804 qdev->lrg_buf_release_cnt++;
1805 if (++qdev->lrg_buf_index == NUM_LARGE_BUFFERS)
1806 qdev->lrg_buf_index = 0;
1807 skb1 = lrg_buf_cb1->skb;
1808 curr_ial_ptr++; /* 64-bit pointers require two incs. */
1809 curr_ial_ptr++;
1810
1811 /* start of second buffer */
1812 lrg_buf_phy_addr_low = le32_to_cpu(*curr_ial_ptr);
1813 lrg_buf_cb2 = &qdev->lrg_buf[qdev->lrg_buf_index];
1814 skb2 = lrg_buf_cb2->skb;
1815 qdev->lrg_buf_release_cnt++;
1816 if (++qdev->lrg_buf_index == NUM_LARGE_BUFFERS)
1817 qdev->lrg_buf_index = 0;
1818
1819 qdev->stats.rx_packets++;
1820 qdev->stats.rx_bytes += length;
1821
1822 /*
1823 * Copy the ethhdr from first buffer to second. This
1824 * is necessary for IP completions.
1825 */
1826 if (*((u16 *) skb1->data) != 0xFFFF)
1827 size = VLAN_ETH_HLEN;
1828 else
1829 size = ETH_HLEN;
1830
1831 skb_put(skb2, length); /* Just the second buffer length here. */
1832 pci_unmap_single(qdev->pdev,
1833 pci_unmap_addr(lrg_buf_cb2, mapaddr),
1834 pci_unmap_len(lrg_buf_cb2, maplen),
1835 PCI_DMA_FROMDEVICE);
1836 prefetch(skb2->data);
1837
1838 memcpy(skb_push(skb2, size), skb1->data + VLAN_ID_LEN, size);
1839 skb2->dev = qdev->ndev;
1840 skb2->ip_summed = CHECKSUM_NONE;
1841 skb2->protocol = eth_type_trans(skb2, qdev->ndev);
1842
1843 netif_receive_skb(skb2);
1844 ndev->last_rx = jiffies;
1845 lrg_buf_cb2->skb = NULL;
1846
1847 ql_release_to_lrg_buf_free_list(qdev, lrg_buf_cb1);
1848 ql_release_to_lrg_buf_free_list(qdev, lrg_buf_cb2);
1849}
1850
1851static int ql_tx_rx_clean(struct ql3_adapter *qdev,
1852 int *tx_cleaned, int *rx_cleaned, int work_to_do)
1853{
1854 struct ql3xxx_port_registers __iomem *port_regs = qdev->mem_map_registers;
1855 struct net_rsp_iocb *net_rsp;
1856 struct net_device *ndev = qdev->ndev;
1857 unsigned long hw_flags;
1858
1859 /* While there are entries in the completion queue. */
1860 while ((cpu_to_le32(*(qdev->prsp_producer_index)) !=
1861 qdev->rsp_consumer_index) && (*rx_cleaned < work_to_do)) {
1862
1863 net_rsp = qdev->rsp_current;
1864 switch (net_rsp->opcode) {
1865
1866 case OPCODE_OB_MAC_IOCB_FN0:
1867 case OPCODE_OB_MAC_IOCB_FN2:
1868 ql_process_mac_tx_intr(qdev, (struct ob_mac_iocb_rsp *)
1869 net_rsp);
1870 (*tx_cleaned)++;
1871 break;
1872
1873 case OPCODE_IB_MAC_IOCB:
1874 ql_process_mac_rx_intr(qdev, (struct ib_mac_iocb_rsp *)
1875 net_rsp);
1876 (*rx_cleaned)++;
1877 break;
1878
1879 case OPCODE_IB_IP_IOCB:
1880 ql_process_macip_rx_intr(qdev, (struct ib_ip_iocb_rsp *)
1881 net_rsp);
1882 (*rx_cleaned)++;
1883 break;
1884 default:
1885 {
1886 u32 *tmp = (u32 *) net_rsp;
1887 printk(KERN_ERR PFX
1888 "%s: Hit default case, not "
1889 "handled!\n"
1890 " dropping the packet, opcode = "
1891 "%x.\n",
1892 ndev->name, net_rsp->opcode);
1893 printk(KERN_ERR PFX
1894 "0x%08lx 0x%08lx 0x%08lx 0x%08lx \n",
1895 (unsigned long int)tmp[0],
1896 (unsigned long int)tmp[1],
1897 (unsigned long int)tmp[2],
1898 (unsigned long int)tmp[3]);
1899 }
1900 }
1901
1902 qdev->rsp_consumer_index++;
1903
1904 if (qdev->rsp_consumer_index == NUM_RSP_Q_ENTRIES) {
1905 qdev->rsp_consumer_index = 0;
1906 qdev->rsp_current = qdev->rsp_q_virt_addr;
1907 } else {
1908 qdev->rsp_current++;
1909 }
1910 }
1911
1912 spin_lock_irqsave(&qdev->hw_lock, hw_flags);
1913
1914 ql_update_lrg_bufq_prod_index(qdev);
1915
1916 if (qdev->small_buf_release_cnt >= 16) {
1917 while (qdev->small_buf_release_cnt >= 16) {
1918 qdev->small_buf_q_producer_index++;
1919
1920 if (qdev->small_buf_q_producer_index ==
1921 NUM_SBUFQ_ENTRIES)
1922 qdev->small_buf_q_producer_index = 0;
1923 qdev->small_buf_release_cnt -= 8;
1924 }
1925
1926 ql_write_common_reg(qdev,
1927 (u32 *) & port_regs->CommonRegs.
1928 rxSmallQProducerIndex,
1929 qdev->small_buf_q_producer_index);
1930 }
1931
1932 ql_write_common_reg(qdev,
1933 (u32 *) & port_regs->CommonRegs.rspQConsumerIndex,
1934 qdev->rsp_consumer_index);
1935 spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
1936
1937 if (unlikely(netif_queue_stopped(qdev->ndev))) {
1938 if (netif_queue_stopped(qdev->ndev) &&
1939 (atomic_read(&qdev->tx_count) > (NUM_REQ_Q_ENTRIES / 4)))
1940 netif_wake_queue(qdev->ndev);
1941 }
1942
1943 return *tx_cleaned + *rx_cleaned;
1944}
1945
1946static int ql_poll(struct net_device *ndev, int *budget)
1947{
1948 struct ql3_adapter *qdev = netdev_priv(ndev);
1949 int work_to_do = min(*budget, ndev->quota);
1950 int rx_cleaned = 0, tx_cleaned = 0;
1951
1952 if (!netif_carrier_ok(ndev))
1953 goto quit_polling;
1954
1955 ql_tx_rx_clean(qdev, &tx_cleaned, &rx_cleaned, work_to_do);
1956 *budget -= rx_cleaned;
1957 ndev->quota -= rx_cleaned;
1958
1959 if ((!tx_cleaned && !rx_cleaned) || !netif_running(ndev)) {
1960quit_polling:
1961 netif_rx_complete(ndev);
1962 ql_enable_interrupts(qdev);
1963 return 0;
1964 }
1965 return 1;
1966}
1967
1968static irqreturn_t ql3xxx_isr(int irq, void *dev_id, struct pt_regs *regs)
1969{
1970
1971 struct net_device *ndev = dev_id;
1972 struct ql3_adapter *qdev = netdev_priv(ndev);
1973 struct ql3xxx_port_registers __iomem *port_regs = qdev->mem_map_registers;
1974 u32 value;
1975 int handled = 1;
1976 u32 var;
1977
1978 port_regs = qdev->mem_map_registers;
1979
1980 value =
1981 ql_read_common_reg_l(qdev, &port_regs->CommonRegs.ispControlStatus);
1982
1983 if (value & (ISP_CONTROL_FE | ISP_CONTROL_RI)) {
1984 spin_lock(&qdev->adapter_lock);
1985 netif_stop_queue(qdev->ndev);
1986 netif_carrier_off(qdev->ndev);
1987 ql_disable_interrupts(qdev);
1988 qdev->port_link_state = LS_DOWN;
1989 set_bit(QL_RESET_ACTIVE,&qdev->flags) ;
1990
1991 if (value & ISP_CONTROL_FE) {
1992 /*
1993 * Chip Fatal Error.
1994 */
1995 var =
1996 ql_read_page0_reg_l(qdev,
1997 &port_regs->PortFatalErrStatus);
1998 printk(KERN_WARNING PFX
1999 "%s: Resetting chip. PortFatalErrStatus "
2000 "register = 0x%x\n", ndev->name, var);
2001 set_bit(QL_RESET_START,&qdev->flags) ;
2002 } else {
2003 /*
2004 * Soft Reset Requested.
2005 */
2006 set_bit(QL_RESET_PER_SCSI,&qdev->flags) ;
2007 printk(KERN_ERR PFX
2008 "%s: Another function issued a reset to the "
2009 "chip. ISR value = %x.\n", ndev->name, value);
2010 }
2011 queue_work(qdev->workqueue, &qdev->reset_work);
2012 spin_unlock(&qdev->adapter_lock);
2013 } else if (value & ISP_IMR_DISABLE_CMPL_INT) {
2014 ql_disable_interrupts(qdev);
2015 if (likely(netif_rx_schedule_prep(ndev)))
2016 __netif_rx_schedule(ndev);
2017 else
2018 ql_enable_interrupts(qdev);
2019 } else {
2020 return IRQ_NONE;
2021 }
2022
2023 return IRQ_RETVAL(handled);
2024}
2025
2026static int ql3xxx_send(struct sk_buff *skb, struct net_device *ndev)
2027{
2028 struct ql3_adapter *qdev = (struct ql3_adapter *)netdev_priv(ndev);
2029 struct ql3xxx_port_registers __iomem *port_regs = qdev->mem_map_registers;
2030 struct ql_tx_buf_cb *tx_cb;
2031 struct ob_mac_iocb_req *mac_iocb_ptr;
2032 u64 map;
2033
2034 if (unlikely(atomic_read(&qdev->tx_count) < 2)) {
2035 if (!netif_queue_stopped(ndev))
2036 netif_stop_queue(ndev);
2037 return NETDEV_TX_BUSY;
2038 }
2039 tx_cb = &qdev->tx_buf[qdev->req_producer_index] ;
2040 mac_iocb_ptr = tx_cb->queue_entry;
2041 memset((void *)mac_iocb_ptr, 0, sizeof(struct ob_mac_iocb_req));
2042 mac_iocb_ptr->opcode = qdev->mac_ob_opcode;
2043 mac_iocb_ptr->flags |= qdev->mb_bit_mask;
2044 mac_iocb_ptr->transaction_id = qdev->req_producer_index;
2045 mac_iocb_ptr->data_len = cpu_to_le16((u16) skb->len);
2046 tx_cb->skb = skb;
2047 map = pci_map_single(qdev->pdev, skb->data, skb->len, PCI_DMA_TODEVICE);
2048 mac_iocb_ptr->buf_addr0_low = cpu_to_le32(LS_64BITS(map));
2049 mac_iocb_ptr->buf_addr0_high = cpu_to_le32(MS_64BITS(map));
2050 mac_iocb_ptr->buf_0_len = cpu_to_le32(skb->len | OB_MAC_IOCB_REQ_E);
2051 pci_unmap_addr_set(tx_cb, mapaddr, map);
2052 pci_unmap_len_set(tx_cb, maplen, skb->len);
2053 atomic_dec(&qdev->tx_count);
2054
2055 qdev->req_producer_index++;
2056 if (qdev->req_producer_index == NUM_REQ_Q_ENTRIES)
2057 qdev->req_producer_index = 0;
2058 wmb();
2059 ql_write_common_reg_l(qdev,
2060 (u32 *) & port_regs->CommonRegs.reqQProducerIndex,
2061 qdev->req_producer_index);
2062
2063 ndev->trans_start = jiffies;
2064 if (netif_msg_tx_queued(qdev))
2065 printk(KERN_DEBUG PFX "%s: tx queued, slot %d, len %d\n",
2066 ndev->name, qdev->req_producer_index, skb->len);
2067
2068 return NETDEV_TX_OK;
2069}
2070static int ql_alloc_net_req_rsp_queues(struct ql3_adapter *qdev)
2071{
2072 qdev->req_q_size =
2073 (u32) (NUM_REQ_Q_ENTRIES * sizeof(struct ob_mac_iocb_req));
2074
2075 qdev->req_q_virt_addr =
2076 pci_alloc_consistent(qdev->pdev,
2077 (size_t) qdev->req_q_size,
2078 &qdev->req_q_phy_addr);
2079
2080 if ((qdev->req_q_virt_addr == NULL) ||
2081 LS_64BITS(qdev->req_q_phy_addr) & (qdev->req_q_size - 1)) {
2082 printk(KERN_ERR PFX "%s: reqQ failed.\n",
2083 qdev->ndev->name);
2084 return -ENOMEM;
2085 }
2086
2087 qdev->rsp_q_size = NUM_RSP_Q_ENTRIES * sizeof(struct net_rsp_iocb);
2088
2089 qdev->rsp_q_virt_addr =
2090 pci_alloc_consistent(qdev->pdev,
2091 (size_t) qdev->rsp_q_size,
2092 &qdev->rsp_q_phy_addr);
2093
2094 if ((qdev->rsp_q_virt_addr == NULL) ||
2095 LS_64BITS(qdev->rsp_q_phy_addr) & (qdev->rsp_q_size - 1)) {
2096 printk(KERN_ERR PFX
2097 "%s: rspQ allocation failed\n",
2098 qdev->ndev->name);
2099 pci_free_consistent(qdev->pdev, (size_t) qdev->req_q_size,
2100 qdev->req_q_virt_addr,
2101 qdev->req_q_phy_addr);
2102 return -ENOMEM;
2103 }
2104
2105 set_bit(QL_ALLOC_REQ_RSP_Q_DONE,&qdev->flags);
2106
2107 return 0;
2108}
2109
2110static void ql_free_net_req_rsp_queues(struct ql3_adapter *qdev)
2111{
2112 if (!test_bit(QL_ALLOC_REQ_RSP_Q_DONE,&qdev->flags)) {
2113 printk(KERN_INFO PFX
2114 "%s: Already done.\n", qdev->ndev->name);
2115 return;
2116 }
2117
2118 pci_free_consistent(qdev->pdev,
2119 qdev->req_q_size,
2120 qdev->req_q_virt_addr, qdev->req_q_phy_addr);
2121
2122 qdev->req_q_virt_addr = NULL;
2123
2124 pci_free_consistent(qdev->pdev,
2125 qdev->rsp_q_size,
2126 qdev->rsp_q_virt_addr, qdev->rsp_q_phy_addr);
2127
2128 qdev->rsp_q_virt_addr = NULL;
2129
2130 clear_bit(QL_ALLOC_REQ_RSP_Q_DONE,&qdev->flags);
2131}
2132
2133static int ql_alloc_buffer_queues(struct ql3_adapter *qdev)
2134{
2135 /* Create Large Buffer Queue */
2136 qdev->lrg_buf_q_size =
2137 NUM_LBUFQ_ENTRIES * sizeof(struct lrg_buf_q_entry);
2138 if (qdev->lrg_buf_q_size < PAGE_SIZE)
2139 qdev->lrg_buf_q_alloc_size = PAGE_SIZE;
2140 else
2141 qdev->lrg_buf_q_alloc_size = qdev->lrg_buf_q_size * 2;
2142
2143 qdev->lrg_buf_q_alloc_virt_addr =
2144 pci_alloc_consistent(qdev->pdev,
2145 qdev->lrg_buf_q_alloc_size,
2146 &qdev->lrg_buf_q_alloc_phy_addr);
2147
2148 if (qdev->lrg_buf_q_alloc_virt_addr == NULL) {
2149 printk(KERN_ERR PFX
2150 "%s: lBufQ failed\n", qdev->ndev->name);
2151 return -ENOMEM;
2152 }
2153 qdev->lrg_buf_q_virt_addr = qdev->lrg_buf_q_alloc_virt_addr;
2154 qdev->lrg_buf_q_phy_addr = qdev->lrg_buf_q_alloc_phy_addr;
2155
2156 /* Create Small Buffer Queue */
2157 qdev->small_buf_q_size =
2158 NUM_SBUFQ_ENTRIES * sizeof(struct lrg_buf_q_entry);
2159 if (qdev->small_buf_q_size < PAGE_SIZE)
2160 qdev->small_buf_q_alloc_size = PAGE_SIZE;
2161 else
2162 qdev->small_buf_q_alloc_size = qdev->small_buf_q_size * 2;
2163
2164 qdev->small_buf_q_alloc_virt_addr =
2165 pci_alloc_consistent(qdev->pdev,
2166 qdev->small_buf_q_alloc_size,
2167 &qdev->small_buf_q_alloc_phy_addr);
2168
2169 if (qdev->small_buf_q_alloc_virt_addr == NULL) {
2170 printk(KERN_ERR PFX
2171 "%s: Small Buffer Queue allocation failed.\n",
2172 qdev->ndev->name);
2173 pci_free_consistent(qdev->pdev, qdev->lrg_buf_q_alloc_size,
2174 qdev->lrg_buf_q_alloc_virt_addr,
2175 qdev->lrg_buf_q_alloc_phy_addr);
2176 return -ENOMEM;
2177 }
2178
2179 qdev->small_buf_q_virt_addr = qdev->small_buf_q_alloc_virt_addr;
2180 qdev->small_buf_q_phy_addr = qdev->small_buf_q_alloc_phy_addr;
2181 set_bit(QL_ALLOC_BUFQS_DONE,&qdev->flags);
2182 return 0;
2183}
2184
2185static void ql_free_buffer_queues(struct ql3_adapter *qdev)
2186{
2187 if (!test_bit(QL_ALLOC_BUFQS_DONE,&qdev->flags)) {
2188 printk(KERN_INFO PFX
2189 "%s: Already done.\n", qdev->ndev->name);
2190 return;
2191 }
2192
2193 pci_free_consistent(qdev->pdev,
2194 qdev->lrg_buf_q_alloc_size,
2195 qdev->lrg_buf_q_alloc_virt_addr,
2196 qdev->lrg_buf_q_alloc_phy_addr);
2197
2198 qdev->lrg_buf_q_virt_addr = NULL;
2199
2200 pci_free_consistent(qdev->pdev,
2201 qdev->small_buf_q_alloc_size,
2202 qdev->small_buf_q_alloc_virt_addr,
2203 qdev->small_buf_q_alloc_phy_addr);
2204
2205 qdev->small_buf_q_virt_addr = NULL;
2206
2207 clear_bit(QL_ALLOC_BUFQS_DONE,&qdev->flags);
2208}
2209
2210static int ql_alloc_small_buffers(struct ql3_adapter *qdev)
2211{
2212 int i;
2213 struct bufq_addr_element *small_buf_q_entry;
2214
2215 /* Currently we allocate on one of memory and use it for smallbuffers */
2216 qdev->small_buf_total_size =
2217 (QL_ADDR_ELE_PER_BUFQ_ENTRY * NUM_SBUFQ_ENTRIES *
2218 QL_SMALL_BUFFER_SIZE);
2219
2220 qdev->small_buf_virt_addr =
2221 pci_alloc_consistent(qdev->pdev,
2222 qdev->small_buf_total_size,
2223 &qdev->small_buf_phy_addr);
2224
2225 if (qdev->small_buf_virt_addr == NULL) {
2226 printk(KERN_ERR PFX
2227 "%s: Failed to get small buffer memory.\n",
2228 qdev->ndev->name);
2229 return -ENOMEM;
2230 }
2231
2232 qdev->small_buf_phy_addr_low = LS_64BITS(qdev->small_buf_phy_addr);
2233 qdev->small_buf_phy_addr_high = MS_64BITS(qdev->small_buf_phy_addr);
2234
2235 small_buf_q_entry = qdev->small_buf_q_virt_addr;
2236
2237 qdev->last_rsp_offset = qdev->small_buf_phy_addr_low;
2238
2239 /* Initialize the small buffer queue. */
2240 for (i = 0; i < (QL_ADDR_ELE_PER_BUFQ_ENTRY * NUM_SBUFQ_ENTRIES); i++) {
2241 small_buf_q_entry->addr_high =
2242 cpu_to_le32(qdev->small_buf_phy_addr_high);
2243 small_buf_q_entry->addr_low =
2244 cpu_to_le32(qdev->small_buf_phy_addr_low +
2245 (i * QL_SMALL_BUFFER_SIZE));
2246 small_buf_q_entry++;
2247 }
2248 qdev->small_buf_index = 0;
2249 set_bit(QL_ALLOC_SMALL_BUF_DONE,&qdev->flags);
2250 return 0;
2251}
2252
2253static void ql_free_small_buffers(struct ql3_adapter *qdev)
2254{
2255 if (!test_bit(QL_ALLOC_SMALL_BUF_DONE,&qdev->flags)) {
2256 printk(KERN_INFO PFX
2257 "%s: Already done.\n", qdev->ndev->name);
2258 return;
2259 }
2260 if (qdev->small_buf_virt_addr != NULL) {
2261 pci_free_consistent(qdev->pdev,
2262 qdev->small_buf_total_size,
2263 qdev->small_buf_virt_addr,
2264 qdev->small_buf_phy_addr);
2265
2266 qdev->small_buf_virt_addr = NULL;
2267 }
2268}
2269
2270static void ql_free_large_buffers(struct ql3_adapter *qdev)
2271{
2272 int i = 0;
2273 struct ql_rcv_buf_cb *lrg_buf_cb;
2274
2275 for (i = 0; i < NUM_LARGE_BUFFERS; i++) {
2276 lrg_buf_cb = &qdev->lrg_buf[i];
2277 if (lrg_buf_cb->skb) {
2278 dev_kfree_skb(lrg_buf_cb->skb);
2279 pci_unmap_single(qdev->pdev,
2280 pci_unmap_addr(lrg_buf_cb, mapaddr),
2281 pci_unmap_len(lrg_buf_cb, maplen),
2282 PCI_DMA_FROMDEVICE);
2283 memset(lrg_buf_cb, 0, sizeof(struct ql_rcv_buf_cb));
2284 } else {
2285 break;
2286 }
2287 }
2288}
2289
2290static void ql_init_large_buffers(struct ql3_adapter *qdev)
2291{
2292 int i;
2293 struct ql_rcv_buf_cb *lrg_buf_cb;
2294 struct bufq_addr_element *buf_addr_ele = qdev->lrg_buf_q_virt_addr;
2295
2296 for (i = 0; i < NUM_LARGE_BUFFERS; i++) {
2297 lrg_buf_cb = &qdev->lrg_buf[i];
2298 buf_addr_ele->addr_high = lrg_buf_cb->buf_phy_addr_high;
2299 buf_addr_ele->addr_low = lrg_buf_cb->buf_phy_addr_low;
2300 buf_addr_ele++;
2301 }
2302 qdev->lrg_buf_index = 0;
2303 qdev->lrg_buf_skb_check = 0;
2304}
2305
2306static int ql_alloc_large_buffers(struct ql3_adapter *qdev)
2307{
2308 int i;
2309 struct ql_rcv_buf_cb *lrg_buf_cb;
2310 struct sk_buff *skb;
2311 u64 map;
2312
2313 for (i = 0; i < NUM_LARGE_BUFFERS; i++) {
2314 skb = dev_alloc_skb(qdev->lrg_buffer_len);
2315 if (unlikely(!skb)) {
2316 /* Better luck next round */
2317 printk(KERN_ERR PFX
2318 "%s: large buff alloc failed, "
2319 "for %d bytes at index %d.\n",
2320 qdev->ndev->name,
2321 qdev->lrg_buffer_len * 2, i);
2322 ql_free_large_buffers(qdev);
2323 return -ENOMEM;
2324 } else {
2325
2326 lrg_buf_cb = &qdev->lrg_buf[i];
2327 memset(lrg_buf_cb, 0, sizeof(struct ql_rcv_buf_cb));
2328 lrg_buf_cb->index = i;
2329 lrg_buf_cb->skb = skb;
2330 /*
2331 * We save some space to copy the ethhdr from first
2332 * buffer
2333 */
2334 skb_reserve(skb, QL_HEADER_SPACE);
2335 map = pci_map_single(qdev->pdev,
2336 skb->data,
2337 qdev->lrg_buffer_len -
2338 QL_HEADER_SPACE,
2339 PCI_DMA_FROMDEVICE);
2340 pci_unmap_addr_set(lrg_buf_cb, mapaddr, map);
2341 pci_unmap_len_set(lrg_buf_cb, maplen,
2342 qdev->lrg_buffer_len -
2343 QL_HEADER_SPACE);
2344 lrg_buf_cb->buf_phy_addr_low =
2345 cpu_to_le32(LS_64BITS(map));
2346 lrg_buf_cb->buf_phy_addr_high =
2347 cpu_to_le32(MS_64BITS(map));
2348 }
2349 }
2350 return 0;
2351}
2352
2353static void ql_create_send_free_list(struct ql3_adapter *qdev)
2354{
2355 struct ql_tx_buf_cb *tx_cb;
2356 int i;
2357 struct ob_mac_iocb_req *req_q_curr =
2358 qdev->req_q_virt_addr;
2359
2360 /* Create free list of transmit buffers */
2361 for (i = 0; i < NUM_REQ_Q_ENTRIES; i++) {
2362 tx_cb = &qdev->tx_buf[i];
2363 tx_cb->skb = NULL;
2364 tx_cb->queue_entry = req_q_curr;
2365 req_q_curr++;
2366 }
2367}
2368
2369static int ql_alloc_mem_resources(struct ql3_adapter *qdev)
2370{
2371 if (qdev->ndev->mtu == NORMAL_MTU_SIZE)
2372 qdev->lrg_buffer_len = NORMAL_MTU_SIZE;
2373 else if (qdev->ndev->mtu == JUMBO_MTU_SIZE) {
2374 qdev->lrg_buffer_len = JUMBO_MTU_SIZE;
2375 } else {
2376 printk(KERN_ERR PFX
2377 "%s: Invalid mtu size. Only 1500 and 9000 are accepted.\n",
2378 qdev->ndev->name);
2379 return -ENOMEM;
2380 }
2381 qdev->lrg_buffer_len += VLAN_ETH_HLEN + VLAN_ID_LEN + QL_HEADER_SPACE;
2382 qdev->max_frame_size =
2383 (qdev->lrg_buffer_len - QL_HEADER_SPACE) + ETHERNET_CRC_SIZE;
2384
2385 /*
2386 * First allocate a page of shared memory and use it for shadow
2387 * locations of Network Request Queue Consumer Address Register and
2388 * Network Completion Queue Producer Index Register
2389 */
2390 qdev->shadow_reg_virt_addr =
2391 pci_alloc_consistent(qdev->pdev,
2392 PAGE_SIZE, &qdev->shadow_reg_phy_addr);
2393
2394 if (qdev->shadow_reg_virt_addr != NULL) {
2395 qdev->preq_consumer_index = (u16 *) qdev->shadow_reg_virt_addr;
2396 qdev->req_consumer_index_phy_addr_high =
2397 MS_64BITS(qdev->shadow_reg_phy_addr);
2398 qdev->req_consumer_index_phy_addr_low =
2399 LS_64BITS(qdev->shadow_reg_phy_addr);
2400
2401 qdev->prsp_producer_index =
2402 (u32 *) (((u8 *) qdev->preq_consumer_index) + 8);
2403 qdev->rsp_producer_index_phy_addr_high =
2404 qdev->req_consumer_index_phy_addr_high;
2405 qdev->rsp_producer_index_phy_addr_low =
2406 qdev->req_consumer_index_phy_addr_low + 8;
2407 } else {
2408 printk(KERN_ERR PFX
2409 "%s: shadowReg Alloc failed.\n", qdev->ndev->name);
2410 return -ENOMEM;
2411 }
2412
2413 if (ql_alloc_net_req_rsp_queues(qdev) != 0) {
2414 printk(KERN_ERR PFX
2415 "%s: ql_alloc_net_req_rsp_queues failed.\n",
2416 qdev->ndev->name);
2417 goto err_req_rsp;
2418 }
2419
2420 if (ql_alloc_buffer_queues(qdev) != 0) {
2421 printk(KERN_ERR PFX
2422 "%s: ql_alloc_buffer_queues failed.\n",
2423 qdev->ndev->name);
2424 goto err_buffer_queues;
2425 }
2426
2427 if (ql_alloc_small_buffers(qdev) != 0) {
2428 printk(KERN_ERR PFX
2429 "%s: ql_alloc_small_buffers failed\n", qdev->ndev->name);
2430 goto err_small_buffers;
2431 }
2432
2433 if (ql_alloc_large_buffers(qdev) != 0) {
2434 printk(KERN_ERR PFX
2435 "%s: ql_alloc_large_buffers failed\n", qdev->ndev->name);
2436 goto err_small_buffers;
2437 }
2438
2439 /* Initialize the large buffer queue. */
2440 ql_init_large_buffers(qdev);
2441 ql_create_send_free_list(qdev);
2442
2443 qdev->rsp_current = qdev->rsp_q_virt_addr;
2444
2445 return 0;
2446
2447err_small_buffers:
2448 ql_free_buffer_queues(qdev);
2449err_buffer_queues:
2450 ql_free_net_req_rsp_queues(qdev);
2451err_req_rsp:
2452 pci_free_consistent(qdev->pdev,
2453 PAGE_SIZE,
2454 qdev->shadow_reg_virt_addr,
2455 qdev->shadow_reg_phy_addr);
2456
2457 return -ENOMEM;
2458}
2459
2460static void ql_free_mem_resources(struct ql3_adapter *qdev)
2461{
2462 ql_free_large_buffers(qdev);
2463 ql_free_small_buffers(qdev);
2464 ql_free_buffer_queues(qdev);
2465 ql_free_net_req_rsp_queues(qdev);
2466 if (qdev->shadow_reg_virt_addr != NULL) {
2467 pci_free_consistent(qdev->pdev,
2468 PAGE_SIZE,
2469 qdev->shadow_reg_virt_addr,
2470 qdev->shadow_reg_phy_addr);
2471 qdev->shadow_reg_virt_addr = NULL;
2472 }
2473}
2474
2475static int ql_init_misc_registers(struct ql3_adapter *qdev)
2476{
2477 struct ql3xxx_local_ram_registers *local_ram =
2478 (struct ql3xxx_local_ram_registers *)qdev->mem_map_registers;
2479
2480 if(ql_sem_spinlock(qdev, QL_DDR_RAM_SEM_MASK,
2481 (QL_RESOURCE_BITS_BASE_CODE | (qdev->mac_index) *
2482 2) << 4))
2483 return -1;
2484
2485 ql_write_page2_reg(qdev,
2486 &local_ram->bufletSize, qdev->nvram_data.bufletSize);
2487
2488 ql_write_page2_reg(qdev,
2489 &local_ram->maxBufletCount,
2490 qdev->nvram_data.bufletCount);
2491
2492 ql_write_page2_reg(qdev,
2493 &local_ram->freeBufletThresholdLow,
2494 (qdev->nvram_data.tcpWindowThreshold25 << 16) |
2495 (qdev->nvram_data.tcpWindowThreshold0));
2496
2497 ql_write_page2_reg(qdev,
2498 &local_ram->freeBufletThresholdHigh,
2499 qdev->nvram_data.tcpWindowThreshold50);
2500
2501 ql_write_page2_reg(qdev,
2502 &local_ram->ipHashTableBase,
2503 (qdev->nvram_data.ipHashTableBaseHi << 16) |
2504 qdev->nvram_data.ipHashTableBaseLo);
2505 ql_write_page2_reg(qdev,
2506 &local_ram->ipHashTableCount,
2507 qdev->nvram_data.ipHashTableSize);
2508 ql_write_page2_reg(qdev,
2509 &local_ram->tcpHashTableBase,
2510 (qdev->nvram_data.tcpHashTableBaseHi << 16) |
2511 qdev->nvram_data.tcpHashTableBaseLo);
2512 ql_write_page2_reg(qdev,
2513 &local_ram->tcpHashTableCount,
2514 qdev->nvram_data.tcpHashTableSize);
2515 ql_write_page2_reg(qdev,
2516 &local_ram->ncbBase,
2517 (qdev->nvram_data.ncbTableBaseHi << 16) |
2518 qdev->nvram_data.ncbTableBaseLo);
2519 ql_write_page2_reg(qdev,
2520 &local_ram->maxNcbCount,
2521 qdev->nvram_data.ncbTableSize);
2522 ql_write_page2_reg(qdev,
2523 &local_ram->drbBase,
2524 (qdev->nvram_data.drbTableBaseHi << 16) |
2525 qdev->nvram_data.drbTableBaseLo);
2526 ql_write_page2_reg(qdev,
2527 &local_ram->maxDrbCount,
2528 qdev->nvram_data.drbTableSize);
2529 ql_sem_unlock(qdev, QL_DDR_RAM_SEM_MASK);
2530 return 0;
2531}
2532
2533static int ql_adapter_initialize(struct ql3_adapter *qdev)
2534{
2535 u32 value;
2536 struct ql3xxx_port_registers __iomem *port_regs = qdev->mem_map_registers;
2537 struct ql3xxx_host_memory_registers __iomem *hmem_regs =
2538 (struct ql3xxx_host_memory_registers *)port_regs;
2539 u32 delay = 10;
2540 int status = 0;
2541
2542 if(ql_mii_setup(qdev))
2543 return -1;
2544
2545 /* Bring out PHY out of reset */
2546 ql_write_common_reg(qdev, &port_regs->CommonRegs.serialPortInterfaceReg,
2547 (ISP_SERIAL_PORT_IF_WE |
2548 (ISP_SERIAL_PORT_IF_WE << 16)));
2549
2550 qdev->port_link_state = LS_DOWN;
2551 netif_carrier_off(qdev->ndev);
2552
2553 /* V2 chip fix for ARS-39168. */
2554 ql_write_common_reg(qdev, &port_regs->CommonRegs.serialPortInterfaceReg,
2555 (ISP_SERIAL_PORT_IF_SDE |
2556 (ISP_SERIAL_PORT_IF_SDE << 16)));
2557
2558 /* Request Queue Registers */
2559 *((u32 *) (qdev->preq_consumer_index)) = 0;
2560 atomic_set(&qdev->tx_count,NUM_REQ_Q_ENTRIES);
2561 qdev->req_producer_index = 0;
2562
2563 ql_write_page1_reg(qdev,
2564 &hmem_regs->reqConsumerIndexAddrHigh,
2565 qdev->req_consumer_index_phy_addr_high);
2566 ql_write_page1_reg(qdev,
2567 &hmem_regs->reqConsumerIndexAddrLow,
2568 qdev->req_consumer_index_phy_addr_low);
2569
2570 ql_write_page1_reg(qdev,
2571 &hmem_regs->reqBaseAddrHigh,
2572 MS_64BITS(qdev->req_q_phy_addr));
2573 ql_write_page1_reg(qdev,
2574 &hmem_regs->reqBaseAddrLow,
2575 LS_64BITS(qdev->req_q_phy_addr));
2576 ql_write_page1_reg(qdev, &hmem_regs->reqLength, NUM_REQ_Q_ENTRIES);
2577
2578 /* Response Queue Registers */
2579 *((u16 *) (qdev->prsp_producer_index)) = 0;
2580 qdev->rsp_consumer_index = 0;
2581 qdev->rsp_current = qdev->rsp_q_virt_addr;
2582
2583 ql_write_page1_reg(qdev,
2584 &hmem_regs->rspProducerIndexAddrHigh,
2585 qdev->rsp_producer_index_phy_addr_high);
2586
2587 ql_write_page1_reg(qdev,
2588 &hmem_regs->rspProducerIndexAddrLow,
2589 qdev->rsp_producer_index_phy_addr_low);
2590
2591 ql_write_page1_reg(qdev,
2592 &hmem_regs->rspBaseAddrHigh,
2593 MS_64BITS(qdev->rsp_q_phy_addr));
2594
2595 ql_write_page1_reg(qdev,
2596 &hmem_regs->rspBaseAddrLow,
2597 LS_64BITS(qdev->rsp_q_phy_addr));
2598
2599 ql_write_page1_reg(qdev, &hmem_regs->rspLength, NUM_RSP_Q_ENTRIES);
2600
2601 /* Large Buffer Queue */
2602 ql_write_page1_reg(qdev,
2603 &hmem_regs->rxLargeQBaseAddrHigh,
2604 MS_64BITS(qdev->lrg_buf_q_phy_addr));
2605
2606 ql_write_page1_reg(qdev,
2607 &hmem_regs->rxLargeQBaseAddrLow,
2608 LS_64BITS(qdev->lrg_buf_q_phy_addr));
2609
2610 ql_write_page1_reg(qdev, &hmem_regs->rxLargeQLength, NUM_LBUFQ_ENTRIES);
2611
2612 ql_write_page1_reg(qdev,
2613 &hmem_regs->rxLargeBufferLength,
2614 qdev->lrg_buffer_len);
2615
2616 /* Small Buffer Queue */
2617 ql_write_page1_reg(qdev,
2618 &hmem_regs->rxSmallQBaseAddrHigh,
2619 MS_64BITS(qdev->small_buf_q_phy_addr));
2620
2621 ql_write_page1_reg(qdev,
2622 &hmem_regs->rxSmallQBaseAddrLow,
2623 LS_64BITS(qdev->small_buf_q_phy_addr));
2624
2625 ql_write_page1_reg(qdev, &hmem_regs->rxSmallQLength, NUM_SBUFQ_ENTRIES);
2626 ql_write_page1_reg(qdev,
2627 &hmem_regs->rxSmallBufferLength,
2628 QL_SMALL_BUFFER_SIZE);
2629
2630 qdev->small_buf_q_producer_index = NUM_SBUFQ_ENTRIES - 1;
2631 qdev->small_buf_release_cnt = 8;
2632 qdev->lrg_buf_q_producer_index = NUM_LBUFQ_ENTRIES - 1;
2633 qdev->lrg_buf_release_cnt = 8;
2634 qdev->lrg_buf_next_free =
2635 (struct bufq_addr_element *)qdev->lrg_buf_q_virt_addr;
2636 qdev->small_buf_index = 0;
2637 qdev->lrg_buf_index = 0;
2638 qdev->lrg_buf_free_count = 0;
2639 qdev->lrg_buf_free_head = NULL;
2640 qdev->lrg_buf_free_tail = NULL;
2641
2642 ql_write_common_reg(qdev,
2643 (u32 *) & port_regs->CommonRegs.
2644 rxSmallQProducerIndex,
2645 qdev->small_buf_q_producer_index);
2646 ql_write_common_reg(qdev,
2647 (u32 *) & port_regs->CommonRegs.
2648 rxLargeQProducerIndex,
2649 qdev->lrg_buf_q_producer_index);
2650
2651 /*
2652 * Find out if the chip has already been initialized. If it has, then
2653 * we skip some of the initialization.
2654 */
2655 clear_bit(QL_LINK_MASTER, &qdev->flags);
2656 value = ql_read_page0_reg(qdev, &port_regs->portStatus);
2657 if ((value & PORT_STATUS_IC) == 0) {
2658
2659 /* Chip has not been configured yet, so let it rip. */
2660 if(ql_init_misc_registers(qdev)) {
2661 status = -1;
2662 goto out;
2663 }
2664
2665 if (qdev->mac_index)
2666 ql_write_page0_reg(qdev,
2667 &port_regs->mac1MaxFrameLengthReg,
2668 qdev->max_frame_size);
2669 else
2670 ql_write_page0_reg(qdev,
2671 &port_regs->mac0MaxFrameLengthReg,
2672 qdev->max_frame_size);
2673
2674 value = qdev->nvram_data.tcpMaxWindowSize;
2675 ql_write_page0_reg(qdev, &port_regs->tcpMaxWindow, value);
2676
2677 value = (0xFFFF << 16) | qdev->nvram_data.extHwConfig;
2678
2679 if(ql_sem_spinlock(qdev, QL_FLASH_SEM_MASK,
2680 (QL_RESOURCE_BITS_BASE_CODE | (qdev->mac_index)
2681 * 2) << 13)) {
2682 status = -1;
2683 goto out;
2684 }
2685 ql_write_page0_reg(qdev, &port_regs->ExternalHWConfig, value);
2686 ql_write_page0_reg(qdev, &port_regs->InternalChipConfig,
2687 (((INTERNAL_CHIP_SD | INTERNAL_CHIP_WE) <<
2688 16) | (INTERNAL_CHIP_SD |
2689 INTERNAL_CHIP_WE)));
2690 ql_sem_unlock(qdev, QL_FLASH_SEM_MASK);
2691 }
2692
2693
2694 if(ql_sem_spinlock(qdev, QL_PHY_GIO_SEM_MASK,
2695 (QL_RESOURCE_BITS_BASE_CODE | (qdev->mac_index) *
2696 2) << 7)) {
2697 status = -1;
2698 goto out;
2699 }
2700
2701 ql_init_scan_mode(qdev);
2702 ql_get_phy_owner(qdev);
2703
2704 /* Load the MAC Configuration */
2705
2706 /* Program lower 32 bits of the MAC address */
2707 ql_write_page0_reg(qdev, &port_regs->macAddrIndirectPtrReg,
2708 (MAC_ADDR_INDIRECT_PTR_REG_RP_MASK << 16));
2709 ql_write_page0_reg(qdev, &port_regs->macAddrDataReg,
2710 ((qdev->ndev->dev_addr[2] << 24)
2711 | (qdev->ndev->dev_addr[3] << 16)
2712 | (qdev->ndev->dev_addr[4] << 8)
2713 | qdev->ndev->dev_addr[5]));
2714
2715 /* Program top 16 bits of the MAC address */
2716 ql_write_page0_reg(qdev, &port_regs->macAddrIndirectPtrReg,
2717 ((MAC_ADDR_INDIRECT_PTR_REG_RP_MASK << 16) | 1));
2718 ql_write_page0_reg(qdev, &port_regs->macAddrDataReg,
2719 ((qdev->ndev->dev_addr[0] << 8)
2720 | qdev->ndev->dev_addr[1]));
2721
2722 /* Enable Primary MAC */
2723 ql_write_page0_reg(qdev, &port_regs->macAddrIndirectPtrReg,
2724 ((MAC_ADDR_INDIRECT_PTR_REG_PE << 16) |
2725 MAC_ADDR_INDIRECT_PTR_REG_PE));
2726
2727 /* Clear Primary and Secondary IP addresses */
2728 ql_write_page0_reg(qdev, &port_regs->ipAddrIndexReg,
2729 ((IP_ADDR_INDEX_REG_MASK << 16) |
2730 (qdev->mac_index << 2)));
2731 ql_write_page0_reg(qdev, &port_regs->ipAddrDataReg, 0);
2732
2733 ql_write_page0_reg(qdev, &port_regs->ipAddrIndexReg,
2734 ((IP_ADDR_INDEX_REG_MASK << 16) |
2735 ((qdev->mac_index << 2) + 1)));
2736 ql_write_page0_reg(qdev, &port_regs->ipAddrDataReg, 0);
2737
2738 ql_sem_unlock(qdev, QL_PHY_GIO_SEM_MASK);
2739
2740 /* Indicate Configuration Complete */
2741 ql_write_page0_reg(qdev,
2742 &port_regs->portControl,
2743 ((PORT_CONTROL_CC << 16) | PORT_CONTROL_CC));
2744
2745 do {
2746 value = ql_read_page0_reg(qdev, &port_regs->portStatus);
2747 if (value & PORT_STATUS_IC)
2748 break;
2749 msleep(500);
2750 } while (--delay);
2751
2752 if (delay == 0) {
2753 printk(KERN_ERR PFX
2754 "%s: Hw Initialization timeout.\n", qdev->ndev->name);
2755 status = -1;
2756 goto out;
2757 }
2758
2759 /* Enable Ethernet Function */
2760 value =
2761 (PORT_CONTROL_EF | PORT_CONTROL_ET | PORT_CONTROL_EI |
2762 PORT_CONTROL_HH);
2763 ql_write_page0_reg(qdev, &port_regs->portControl,
2764 ((value << 16) | value));
2765
2766out:
2767 return status;
2768}
2769
2770/*
2771 * Caller holds hw_lock.
2772 */
2773static int ql_adapter_reset(struct ql3_adapter *qdev)
2774{
2775 struct ql3xxx_port_registers __iomem *port_regs = qdev->mem_map_registers;
2776 int status = 0;
2777 u16 value;
2778 int max_wait_time;
2779
2780 set_bit(QL_RESET_ACTIVE, &qdev->flags);
2781 clear_bit(QL_RESET_DONE, &qdev->flags);
2782
2783 /*
2784 * Issue soft reset to chip.
2785 */
2786 printk(KERN_DEBUG PFX
2787 "%s: Issue soft reset to chip.\n",
2788 qdev->ndev->name);
2789 ql_write_common_reg(qdev,
2790 (u32 *) & port_regs->CommonRegs.ispControlStatus,
2791 ((ISP_CONTROL_SR << 16) | ISP_CONTROL_SR));
2792
2793 /* Wait 3 seconds for reset to complete. */
2794 printk(KERN_DEBUG PFX
2795 "%s: Wait 10 milliseconds for reset to complete.\n",
2796 qdev->ndev->name);
2797
2798 /* Wait until the firmware tells us the Soft Reset is done */
2799 max_wait_time = 5;
2800 do {
2801 value =
2802 ql_read_common_reg(qdev,
2803 &port_regs->CommonRegs.ispControlStatus);
2804 if ((value & ISP_CONTROL_SR) == 0)
2805 break;
2806
2807 ssleep(1);
2808 } while ((--max_wait_time));
2809
2810 /*
2811 * Also, make sure that the Network Reset Interrupt bit has been
2812 * cleared after the soft reset has taken place.
2813 */
2814 value =
2815 ql_read_common_reg(qdev, &port_regs->CommonRegs.ispControlStatus);
2816 if (value & ISP_CONTROL_RI) {
2817 printk(KERN_DEBUG PFX
2818 "ql_adapter_reset: clearing RI after reset.\n");
2819 ql_write_common_reg(qdev,
2820 (u32 *) & port_regs->CommonRegs.
2821 ispControlStatus,
2822 ((ISP_CONTROL_RI << 16) | ISP_CONTROL_RI));
2823 }
2824
2825 if (max_wait_time == 0) {
2826 /* Issue Force Soft Reset */
2827 ql_write_common_reg(qdev,
2828 (u32 *) & port_regs->CommonRegs.
2829 ispControlStatus,
2830 ((ISP_CONTROL_FSR << 16) |
2831 ISP_CONTROL_FSR));
2832 /*
2833 * Wait until the firmware tells us the Force Soft Reset is
2834 * done
2835 */
2836 max_wait_time = 5;
2837 do {
2838 value =
2839 ql_read_common_reg(qdev,
2840 &port_regs->CommonRegs.
2841 ispControlStatus);
2842 if ((value & ISP_CONTROL_FSR) == 0) {
2843 break;
2844 }
2845 ssleep(1);
2846 } while ((--max_wait_time));
2847 }
2848 if (max_wait_time == 0)
2849 status = 1;
2850
2851 clear_bit(QL_RESET_ACTIVE, &qdev->flags);
2852 set_bit(QL_RESET_DONE, &qdev->flags);
2853 return status;
2854}
2855
2856static void ql_set_mac_info(struct ql3_adapter *qdev)
2857{
2858 struct ql3xxx_port_registers __iomem *port_regs = qdev->mem_map_registers;
2859 u32 value, port_status;
2860 u8 func_number;
2861
2862 /* Get the function number */
2863 value =
2864 ql_read_common_reg_l(qdev, &port_regs->CommonRegs.ispControlStatus);
2865 func_number = (u8) ((value >> 4) & OPCODE_FUNC_ID_MASK);
2866 port_status = ql_read_page0_reg(qdev, &port_regs->portStatus);
2867 switch (value & ISP_CONTROL_FN_MASK) {
2868 case ISP_CONTROL_FN0_NET:
2869 qdev->mac_index = 0;
2870 qdev->mac_ob_opcode = OUTBOUND_MAC_IOCB | func_number;
2871 qdev->tcp_ob_opcode = OUTBOUND_TCP_IOCB | func_number;
2872 qdev->update_ob_opcode = UPDATE_NCB_IOCB | func_number;
2873 qdev->mb_bit_mask = FN0_MA_BITS_MASK;
2874 qdev->PHYAddr = PORT0_PHY_ADDRESS;
2875 if (port_status & PORT_STATUS_SM0)
2876 set_bit(QL_LINK_OPTICAL,&qdev->flags);
2877 else
2878 clear_bit(QL_LINK_OPTICAL,&qdev->flags);
2879 break;
2880
2881 case ISP_CONTROL_FN1_NET:
2882 qdev->mac_index = 1;
2883 qdev->mac_ob_opcode = OUTBOUND_MAC_IOCB | func_number;
2884 qdev->tcp_ob_opcode = OUTBOUND_TCP_IOCB | func_number;
2885 qdev->update_ob_opcode = UPDATE_NCB_IOCB | func_number;
2886 qdev->mb_bit_mask = FN1_MA_BITS_MASK;
2887 qdev->PHYAddr = PORT1_PHY_ADDRESS;
2888 if (port_status & PORT_STATUS_SM1)
2889 set_bit(QL_LINK_OPTICAL,&qdev->flags);
2890 else
2891 clear_bit(QL_LINK_OPTICAL,&qdev->flags);
2892 break;
2893
2894 case ISP_CONTROL_FN0_SCSI:
2895 case ISP_CONTROL_FN1_SCSI:
2896 default:
2897 printk(KERN_DEBUG PFX
2898 "%s: Invalid function number, ispControlStatus = 0x%x\n",
2899 qdev->ndev->name,value);
2900 break;
2901 }
2902 qdev->numPorts = qdev->nvram_data.numPorts;
2903}
2904
2905static void ql_display_dev_info(struct net_device *ndev)
2906{
2907 struct ql3_adapter *qdev = (struct ql3_adapter *)netdev_priv(ndev);
2908 struct pci_dev *pdev = qdev->pdev;
2909
2910 printk(KERN_INFO PFX
2911 "\n%s Adapter %d RevisionID %d found on PCI slot %d.\n",
2912 DRV_NAME, qdev->index, qdev->chip_rev_id, qdev->pci_slot);
2913 printk(KERN_INFO PFX
2914 "%s Interface.\n",
2915 test_bit(QL_LINK_OPTICAL,&qdev->flags) ? "OPTICAL" : "COPPER");
2916
2917 /*
2918 * Print PCI bus width/type.
2919 */
2920 printk(KERN_INFO PFX
2921 "Bus interface is %s %s.\n",
2922 ((qdev->pci_width == 64) ? "64-bit" : "32-bit"),
2923 ((qdev->pci_x) ? "PCI-X" : "PCI"));
2924
2925 printk(KERN_INFO PFX
2926 "mem IO base address adjusted = 0x%p\n",
2927 qdev->mem_map_registers);
2928 printk(KERN_INFO PFX "Interrupt number = %d\n", pdev->irq);
2929
2930 if (netif_msg_probe(qdev))
2931 printk(KERN_INFO PFX
2932 "%s: MAC address %02x:%02x:%02x:%02x:%02x:%02x\n",
2933 ndev->name, ndev->dev_addr[0], ndev->dev_addr[1],
2934 ndev->dev_addr[2], ndev->dev_addr[3], ndev->dev_addr[4],
2935 ndev->dev_addr[5]);
2936}
2937
2938static int ql_adapter_down(struct ql3_adapter *qdev, int do_reset)
2939{
2940 struct net_device *ndev = qdev->ndev;
2941 int retval = 0;
2942
2943 netif_stop_queue(ndev);
2944 netif_carrier_off(ndev);
2945
2946 clear_bit(QL_ADAPTER_UP,&qdev->flags);
2947 clear_bit(QL_LINK_MASTER,&qdev->flags);
2948
2949 ql_disable_interrupts(qdev);
2950
2951 free_irq(qdev->pdev->irq, ndev);
2952
2953 if (qdev->msi && test_bit(QL_MSI_ENABLED,&qdev->flags)) {
2954 printk(KERN_INFO PFX
2955 "%s: calling pci_disable_msi().\n", qdev->ndev->name);
2956 clear_bit(QL_MSI_ENABLED,&qdev->flags);
2957 pci_disable_msi(qdev->pdev);
2958 }
2959
2960 del_timer_sync(&qdev->adapter_timer);
2961
2962 netif_poll_disable(ndev);
2963
2964 if (do_reset) {
2965 int soft_reset;
2966 unsigned long hw_flags;
2967
2968 spin_lock_irqsave(&qdev->hw_lock, hw_flags);
2969 if (ql_wait_for_drvr_lock(qdev)) {
2970 if ((soft_reset = ql_adapter_reset(qdev))) {
2971 printk(KERN_ERR PFX
2972 "%s: ql_adapter_reset(%d) FAILED!\n",
2973 ndev->name, qdev->index);
2974 }
2975 printk(KERN_ERR PFX
2976 "%s: Releaseing driver lock via chip reset.\n",ndev->name);
2977 } else {
2978 printk(KERN_ERR PFX
2979 "%s: Could not acquire driver lock to do "
2980 "reset!\n", ndev->name);
2981 retval = -1;
2982 }
2983 spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
2984 }
2985 ql_free_mem_resources(qdev);
2986 return retval;
2987}
2988
2989static int ql_adapter_up(struct ql3_adapter *qdev)
2990{
2991 struct net_device *ndev = qdev->ndev;
2992 int err;
2993 unsigned long irq_flags = SA_SAMPLE_RANDOM | SA_SHIRQ;
2994 unsigned long hw_flags;
2995
2996 if (ql_alloc_mem_resources(qdev)) {
2997 printk(KERN_ERR PFX
2998 "%s Unable to allocate buffers.\n", ndev->name);
2999 return -ENOMEM;
3000 }
3001
3002 if (qdev->msi) {
3003 if (pci_enable_msi(qdev->pdev)) {
3004 printk(KERN_ERR PFX
3005 "%s: User requested MSI, but MSI failed to "
3006 "initialize. Continuing without MSI.\n",
3007 qdev->ndev->name);
3008 qdev->msi = 0;
3009 } else {
3010 printk(KERN_INFO PFX "%s: MSI Enabled...\n", qdev->ndev->name);
3011 set_bit(QL_MSI_ENABLED,&qdev->flags);
3012 irq_flags &= ~SA_SHIRQ;
3013 }
3014 }
3015
3016 if ((err = request_irq(qdev->pdev->irq,
3017 ql3xxx_isr,
3018 irq_flags, ndev->name, ndev))) {
3019 printk(KERN_ERR PFX
3020 "%s: Failed to reserve interrupt %d already in use.\n",
3021 ndev->name, qdev->pdev->irq);
3022 goto err_irq;
3023 }
3024
3025 spin_lock_irqsave(&qdev->hw_lock, hw_flags);
3026
3027 if ((err = ql_wait_for_drvr_lock(qdev))) {
3028 if ((err = ql_adapter_initialize(qdev))) {
3029 printk(KERN_ERR PFX
3030 "%s: Unable to initialize adapter.\n",
3031 ndev->name);
3032 goto err_init;
3033 }
3034 printk(KERN_ERR PFX
3035 "%s: Releaseing driver lock.\n",ndev->name);
3036 ql_sem_unlock(qdev, QL_DRVR_SEM_MASK);
3037 } else {
3038 printk(KERN_ERR PFX
3039 "%s: Could not aquire driver lock.\n",
3040 ndev->name);
3041 goto err_lock;
3042 }
3043
3044 spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
3045
3046 set_bit(QL_ADAPTER_UP,&qdev->flags);
3047
3048 mod_timer(&qdev->adapter_timer, jiffies + HZ * 1);
3049
3050 netif_poll_enable(ndev);
3051 ql_enable_interrupts(qdev);
3052 return 0;
3053
3054err_init:
3055 ql_sem_unlock(qdev, QL_DRVR_SEM_MASK);
3056err_lock:
3057 free_irq(qdev->pdev->irq, ndev);
3058err_irq:
3059 if (qdev->msi && test_bit(QL_MSI_ENABLED,&qdev->flags)) {
3060 printk(KERN_INFO PFX
3061 "%s: calling pci_disable_msi().\n",
3062 qdev->ndev->name);
3063 clear_bit(QL_MSI_ENABLED,&qdev->flags);
3064 pci_disable_msi(qdev->pdev);
3065 }
3066 return err;
3067}
3068
3069static int ql_cycle_adapter(struct ql3_adapter *qdev, int reset)
3070{
3071 if( ql_adapter_down(qdev,reset) || ql_adapter_up(qdev)) {
3072 printk(KERN_ERR PFX
3073 "%s: Driver up/down cycle failed, "
3074 "closing device\n",qdev->ndev->name);
3075 dev_close(qdev->ndev);
3076 return -1;
3077 }
3078 return 0;
3079}
3080
3081static int ql3xxx_close(struct net_device *ndev)
3082{
3083 struct ql3_adapter *qdev = netdev_priv(ndev);
3084
3085 /*
3086 * Wait for device to recover from a reset.
3087 * (Rarely happens, but possible.)
3088 */
3089 while (!test_bit(QL_ADAPTER_UP,&qdev->flags))
3090 msleep(50);
3091
3092 ql_adapter_down(qdev,QL_DO_RESET);
3093 return 0;
3094}
3095
3096static int ql3xxx_open(struct net_device *ndev)
3097{
3098 struct ql3_adapter *qdev = netdev_priv(ndev);
3099 return (ql_adapter_up(qdev));
3100}
3101
3102static struct net_device_stats *ql3xxx_get_stats(struct net_device *dev)
3103{
3104 struct ql3_adapter *qdev = (struct ql3_adapter *)dev->priv;
3105 return &qdev->stats;
3106}
3107
3108static int ql3xxx_change_mtu(struct net_device *ndev, int new_mtu)
3109{
3110 struct ql3_adapter *qdev = netdev_priv(ndev);
3111 printk(KERN_ERR PFX "%s: new mtu size = %d.\n", ndev->name, new_mtu);
3112 if (new_mtu != NORMAL_MTU_SIZE && new_mtu != JUMBO_MTU_SIZE) {
3113 printk(KERN_ERR PFX
3114 "%s: mtu size of %d is not valid. Use exactly %d or "
3115 "%d.\n", ndev->name, new_mtu, NORMAL_MTU_SIZE,
3116 JUMBO_MTU_SIZE);
3117 return -EINVAL;
3118 }
3119
3120 if (!netif_running(ndev)) {
3121 ndev->mtu = new_mtu;
3122 return 0;
3123 }
3124
3125 ndev->mtu = new_mtu;
3126 return ql_cycle_adapter(qdev,QL_DO_RESET);
3127}
3128
3129static void ql3xxx_set_multicast_list(struct net_device *ndev)
3130{
3131 /*
3132 * We are manually parsing the list in the net_device structure.
3133 */
3134 return;
3135}
3136
3137static int ql3xxx_set_mac_address(struct net_device *ndev, void *p)
3138{
3139 struct ql3_adapter *qdev = (struct ql3_adapter *)netdev_priv(ndev);
3140 struct ql3xxx_port_registers __iomem *port_regs =
3141 qdev->mem_map_registers;
3142 struct sockaddr *addr = p;
3143 unsigned long hw_flags;
3144
3145 if (netif_running(ndev))
3146 return -EBUSY;
3147
3148 if (!is_valid_ether_addr(addr->sa_data))
3149 return -EADDRNOTAVAIL;
3150
3151 memcpy(ndev->dev_addr, addr->sa_data, ndev->addr_len);
3152
3153 spin_lock_irqsave(&qdev->hw_lock, hw_flags);
3154 /* Program lower 32 bits of the MAC address */
3155 ql_write_page0_reg(qdev, &port_regs->macAddrIndirectPtrReg,
3156 (MAC_ADDR_INDIRECT_PTR_REG_RP_MASK << 16));
3157 ql_write_page0_reg(qdev, &port_regs->macAddrDataReg,
3158 ((ndev->dev_addr[2] << 24) | (ndev->
3159 dev_addr[3] << 16) |
3160 (ndev->dev_addr[4] << 8) | ndev->dev_addr[5]));
3161
3162 /* Program top 16 bits of the MAC address */
3163 ql_write_page0_reg(qdev, &port_regs->macAddrIndirectPtrReg,
3164 ((MAC_ADDR_INDIRECT_PTR_REG_RP_MASK << 16) | 1));
3165 ql_write_page0_reg(qdev, &port_regs->macAddrDataReg,
3166 ((ndev->dev_addr[0] << 8) | ndev->dev_addr[1]));
3167 spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
3168
3169 return 0;
3170}
3171
3172static void ql3xxx_tx_timeout(struct net_device *ndev)
3173{
3174 struct ql3_adapter *qdev = (struct ql3_adapter *)netdev_priv(ndev);
3175
3176 printk(KERN_ERR PFX "%s: Resetting...\n", ndev->name);
3177 /*
3178 * Stop the queues, we've got a problem.
3179 */
3180 netif_stop_queue(ndev);
3181
3182 /*
3183 * Wake up the worker to process this event.
3184 */
3185 queue_work(qdev->workqueue, &qdev->tx_timeout_work);
3186}
3187
3188static void ql_reset_work(struct ql3_adapter *qdev)
3189{
3190 struct net_device *ndev = qdev->ndev;
3191 u32 value;
3192 struct ql_tx_buf_cb *tx_cb;
3193 int max_wait_time, i;
3194 struct ql3xxx_port_registers __iomem *port_regs = qdev->mem_map_registers;
3195 unsigned long hw_flags;
3196
3197 if (test_bit((QL_RESET_PER_SCSI | QL_RESET_START),&qdev->flags)) {
3198 clear_bit(QL_LINK_MASTER,&qdev->flags);
3199
3200 /*
3201 * Loop through the active list and return the skb.
3202 */
3203 for (i = 0; i < NUM_REQ_Q_ENTRIES; i++) {
3204 tx_cb = &qdev->tx_buf[i];
3205 if (tx_cb->skb) {
3206
3207 printk(KERN_DEBUG PFX
3208 "%s: Freeing lost SKB.\n",
3209 qdev->ndev->name);
3210 pci_unmap_single(qdev->pdev,
3211 pci_unmap_addr(tx_cb, mapaddr),
3212 pci_unmap_len(tx_cb, maplen), PCI_DMA_TODEVICE);
3213 dev_kfree_skb(tx_cb->skb);
3214 tx_cb->skb = NULL;
3215 }
3216 }
3217
3218 printk(KERN_ERR PFX
3219 "%s: Clearing NRI after reset.\n", qdev->ndev->name);
3220 spin_lock_irqsave(&qdev->hw_lock, hw_flags);
3221 ql_write_common_reg(qdev,
3222 &port_regs->CommonRegs.
3223 ispControlStatus,
3224 ((ISP_CONTROL_RI << 16) | ISP_CONTROL_RI));
3225 /*
3226 * Wait the for Soft Reset to Complete.
3227 */
3228 max_wait_time = 10;
3229 do {
3230 value = ql_read_common_reg(qdev,
3231 &port_regs->CommonRegs.
3232
3233 ispControlStatus);
3234 if ((value & ISP_CONTROL_SR) == 0) {
3235 printk(KERN_DEBUG PFX
3236 "%s: reset completed.\n",
3237 qdev->ndev->name);
3238 break;
3239 }
3240
3241 if (value & ISP_CONTROL_RI) {
3242 printk(KERN_DEBUG PFX
3243 "%s: clearing NRI after reset.\n",
3244 qdev->ndev->name);
3245 ql_write_common_reg(qdev,
3246 (u32 *) &
3247 port_regs->
3248 CommonRegs.
3249 ispControlStatus,
3250 ((ISP_CONTROL_RI <<
3251 16) | ISP_CONTROL_RI));
3252 }
3253
3254 ssleep(1);
3255 } while (--max_wait_time);
3256 spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
3257
3258 if (value & ISP_CONTROL_SR) {
3259
3260 /*
3261 * Set the reset flags and clear the board again.
3262 * Nothing else to do...
3263 */
3264 printk(KERN_ERR PFX
3265 "%s: Timed out waiting for reset to "
3266 "complete.\n", ndev->name);
3267 printk(KERN_ERR PFX
3268 "%s: Do a reset.\n", ndev->name);
3269 clear_bit(QL_RESET_PER_SCSI,&qdev->flags);
3270 clear_bit(QL_RESET_START,&qdev->flags);
3271 ql_cycle_adapter(qdev,QL_DO_RESET);
3272 return;
3273 }
3274
3275 clear_bit(QL_RESET_ACTIVE,&qdev->flags);
3276 clear_bit(QL_RESET_PER_SCSI,&qdev->flags);
3277 clear_bit(QL_RESET_START,&qdev->flags);
3278 ql_cycle_adapter(qdev,QL_NO_RESET);
3279 }
3280}
3281
3282static void ql_tx_timeout_work(struct ql3_adapter *qdev)
3283{
3284 ql_cycle_adapter(qdev,QL_DO_RESET);
3285}
3286
3287static void ql_get_board_info(struct ql3_adapter *qdev)
3288{
3289 struct ql3xxx_port_registers __iomem *port_regs = qdev->mem_map_registers;
3290 u32 value;
3291
3292 value = ql_read_page0_reg_l(qdev, &port_regs->portStatus);
3293
3294 qdev->chip_rev_id = ((value & PORT_STATUS_REV_ID_MASK) >> 12);
3295 if (value & PORT_STATUS_64)
3296 qdev->pci_width = 64;
3297 else
3298 qdev->pci_width = 32;
3299 if (value & PORT_STATUS_X)
3300 qdev->pci_x = 1;
3301 else
3302 qdev->pci_x = 0;
3303 qdev->pci_slot = (u8) PCI_SLOT(qdev->pdev->devfn);
3304}
3305
3306static void ql3xxx_timer(unsigned long ptr)
3307{
3308 struct ql3_adapter *qdev = (struct ql3_adapter *)ptr;
3309
3310 if (test_bit(QL_RESET_ACTIVE,&qdev->flags)) {
3311 printk(KERN_DEBUG PFX
3312 "%s: Reset in progress.\n",
3313 qdev->ndev->name);
3314 goto end;
3315 }
3316
3317 ql_link_state_machine(qdev);
3318
3319 /* Restart timer on 2 second interval. */
3320end:
3321 mod_timer(&qdev->adapter_timer, jiffies + HZ * 1);
3322}
3323
3324static int __devinit ql3xxx_probe(struct pci_dev *pdev,
3325 const struct pci_device_id *pci_entry)
3326{
3327 struct net_device *ndev = NULL;
3328 struct ql3_adapter *qdev = NULL;
3329 static int cards_found = 0;
3330 int pci_using_dac, err;
3331
3332 err = pci_enable_device(pdev);
3333 if (err) {
3334 printk(KERN_ERR PFX "%s cannot enable PCI device\n",
3335 pci_name(pdev));
3336 goto err_out;
3337 }
3338
3339 err = pci_request_regions(pdev, DRV_NAME);
3340 if (err) {
3341 printk(KERN_ERR PFX "%s cannot obtain PCI resources\n",
3342 pci_name(pdev));
3343 goto err_out_disable_pdev;
3344 }
3345
3346 pci_set_master(pdev);
3347
3348 if (!pci_set_dma_mask(pdev, DMA_64BIT_MASK)) {
3349 pci_using_dac = 1;
3350 err = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK);
3351 } else if (!(err = pci_set_dma_mask(pdev, DMA_32BIT_MASK))) {
3352 pci_using_dac = 0;
3353 err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
3354 }
3355
3356 if (err) {
3357 printk(KERN_ERR PFX "%s no usable DMA configuration\n",
3358 pci_name(pdev));
3359 goto err_out_free_regions;
3360 }
3361
3362 ndev = alloc_etherdev(sizeof(struct ql3_adapter));
3363 if (!ndev)
3364 goto err_out_free_regions;
3365
3366 SET_MODULE_OWNER(ndev);
3367 SET_NETDEV_DEV(ndev, &pdev->dev);
3368
3369 ndev->features = NETIF_F_LLTX;
3370 if (pci_using_dac)
3371 ndev->features |= NETIF_F_HIGHDMA;
3372
3373 pci_set_drvdata(pdev, ndev);
3374
3375 qdev = netdev_priv(ndev);
3376 qdev->index = cards_found;
3377 qdev->ndev = ndev;
3378 qdev->pdev = pdev;
3379 qdev->port_link_state = LS_DOWN;
3380 if (msi)
3381 qdev->msi = 1;
3382
3383 qdev->msg_enable = netif_msg_init(debug, default_msg);
3384
3385 qdev->mem_map_registers =
3386 ioremap_nocache(pci_resource_start(pdev, 1),
3387 pci_resource_len(qdev->pdev, 1));
3388 if (!qdev->mem_map_registers) {
3389 printk(KERN_ERR PFX "%s: cannot map device registers\n",
3390 pci_name(pdev));
3391 goto err_out_free_ndev;
3392 }
3393
3394 spin_lock_init(&qdev->adapter_lock);
3395 spin_lock_init(&qdev->hw_lock);
3396
3397 /* Set driver entry points */
3398 ndev->open = ql3xxx_open;
3399 ndev->hard_start_xmit = ql3xxx_send;
3400 ndev->stop = ql3xxx_close;
3401 ndev->get_stats = ql3xxx_get_stats;
3402 ndev->change_mtu = ql3xxx_change_mtu;
3403 ndev->set_multicast_list = ql3xxx_set_multicast_list;
3404 SET_ETHTOOL_OPS(ndev, &ql3xxx_ethtool_ops);
3405 ndev->set_mac_address = ql3xxx_set_mac_address;
3406 ndev->tx_timeout = ql3xxx_tx_timeout;
3407 ndev->watchdog_timeo = 5 * HZ;
3408
3409 ndev->poll = &ql_poll;
3410 ndev->weight = 64;
3411
3412 ndev->irq = pdev->irq;
3413
3414 /* make sure the EEPROM is good */
3415 if (ql_get_nvram_params(qdev)) {
3416 printk(KERN_ALERT PFX
3417 "ql3xxx_probe: Adapter #%d, Invalid NVRAM parameters.\n",
3418 qdev->index);
3419 goto err_out_iounmap;
3420 }
3421
3422 ql_set_mac_info(qdev);
3423
3424 /* Validate and set parameters */
3425 if (qdev->mac_index) {
3426 memcpy(ndev->dev_addr, &qdev->nvram_data.funcCfg_fn2.macAddress,
3427 ETH_ALEN);
3428 } else {
3429 memcpy(ndev->dev_addr, &qdev->nvram_data.funcCfg_fn0.macAddress,
3430 ETH_ALEN);
3431 }
3432 memcpy(ndev->perm_addr, ndev->dev_addr, ndev->addr_len);
3433
3434 ndev->tx_queue_len = NUM_REQ_Q_ENTRIES;
3435
3436 /* Turn off support for multicasting */
3437 ndev->flags &= ~IFF_MULTICAST;
3438
3439 /* Record PCI bus information. */
3440 ql_get_board_info(qdev);
3441
3442 /*
3443 * Set the Maximum Memory Read Byte Count value. We do this to handle
3444 * jumbo frames.
3445 */
3446 if (qdev->pci_x) {
3447 pci_write_config_word(pdev, (int)0x4e, (u16) 0x0036);
3448 }
3449
3450 err = register_netdev(ndev);
3451 if (err) {
3452 printk(KERN_ERR PFX "%s: cannot register net device\n",
3453 pci_name(pdev));
3454 goto err_out_iounmap;
3455 }
3456
3457 /* we're going to reset, so assume we have no link for now */
3458
3459 netif_carrier_off(ndev);
3460 netif_stop_queue(ndev);
3461
3462 qdev->workqueue = create_singlethread_workqueue(ndev->name);
3463 INIT_WORK(&qdev->reset_work, (void (*)(void *))ql_reset_work, qdev);
3464 INIT_WORK(&qdev->tx_timeout_work,
3465 (void (*)(void *))ql_tx_timeout_work, qdev);
3466
3467 init_timer(&qdev->adapter_timer);
3468 qdev->adapter_timer.function = ql3xxx_timer;
3469 qdev->adapter_timer.expires = jiffies + HZ * 2; /* two second delay */
3470 qdev->adapter_timer.data = (unsigned long)qdev;
3471
3472 if(!cards_found) {
3473 printk(KERN_ALERT PFX "%s\n", DRV_STRING);
3474 printk(KERN_ALERT PFX "Driver name: %s, Version: %s.\n",
3475 DRV_NAME, DRV_VERSION);
3476 }
3477 ql_display_dev_info(ndev);
3478
3479 cards_found++;
3480 return 0;
3481
3482err_out_iounmap:
3483 iounmap(qdev->mem_map_registers);
3484err_out_free_ndev:
3485 free_netdev(ndev);
3486err_out_free_regions:
3487 pci_release_regions(pdev);
3488err_out_disable_pdev:
3489 pci_disable_device(pdev);
3490 pci_set_drvdata(pdev, NULL);
3491err_out:
3492 return err;
3493}
3494
3495static void __devexit ql3xxx_remove(struct pci_dev *pdev)
3496{
3497 struct net_device *ndev = pci_get_drvdata(pdev);
3498 struct ql3_adapter *qdev = netdev_priv(ndev);
3499
3500 unregister_netdev(ndev);
3501 qdev = netdev_priv(ndev);
3502
3503 ql_disable_interrupts(qdev);
3504
3505 if (qdev->workqueue) {
3506 cancel_delayed_work(&qdev->reset_work);
3507 cancel_delayed_work(&qdev->tx_timeout_work);
3508 destroy_workqueue(qdev->workqueue);
3509 qdev->workqueue = NULL;
3510 }
3511
3512 iounmap((void *)qdev->mmap_virt_base);
3513 pci_release_regions(pdev);
3514 pci_set_drvdata(pdev, NULL);
3515 free_netdev(ndev);
3516}
3517
3518static struct pci_driver ql3xxx_driver = {
3519
3520 .name = DRV_NAME,
3521 .id_table = ql3xxx_pci_tbl,
3522 .probe = ql3xxx_probe,
3523 .remove = __devexit_p(ql3xxx_remove),
3524};
3525
3526static int __init ql3xxx_init_module(void)
3527{
3528 return pci_register_driver(&ql3xxx_driver);
3529}
3530
3531static void __exit ql3xxx_exit(void)
3532{
3533 pci_unregister_driver(&ql3xxx_driver);
3534}
3535
3536module_init(ql3xxx_init_module);
3537module_exit(ql3xxx_exit);
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