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thp: madvise(MADV_NOHUGEPAGE)
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / net / qla3xxx.c
blob1a3584edd79cb5b88633360a5866f19b413172e6
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 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
9
10 #include <linux/kernel.h>
11 #include <linux/init.h>
12 #include <linux/types.h>
13 #include <linux/module.h>
14 #include <linux/list.h>
15 #include <linux/pci.h>
16 #include <linux/dma-mapping.h>
17 #include <linux/sched.h>
18 #include <linux/slab.h>
19 #include <linux/dmapool.h>
20 #include <linux/mempool.h>
21 #include <linux/spinlock.h>
22 #include <linux/kthread.h>
23 #include <linux/interrupt.h>
24 #include <linux/errno.h>
25 #include <linux/ioport.h>
26 #include <linux/ip.h>
27 #include <linux/in.h>
28 #include <linux/if_arp.h>
29 #include <linux/if_ether.h>
30 #include <linux/netdevice.h>
31 #include <linux/etherdevice.h>
32 #include <linux/ethtool.h>
33 #include <linux/skbuff.h>
34 #include <linux/rtnetlink.h>
35 #include <linux/if_vlan.h>
36 #include <linux/delay.h>
37 #include <linux/mm.h>
38
39 #include "qla3xxx.h"
40
41 #define DRV_NAME "qla3xxx"
42 #define DRV_STRING "QLogic ISP3XXX Network Driver"
43 #define DRV_VERSION "v2.03.00-k5"
44
45 static const char ql3xxx_driver_name[] = DRV_NAME;
46 static const char ql3xxx_driver_version[] = DRV_VERSION;
47
48 #define TIMED_OUT_MSG \
49 "Timed out waiting for management port to get free before issuing command\n"
50
51 MODULE_AUTHOR("QLogic Corporation");
52 MODULE_DESCRIPTION("QLogic ISP3XXX Network Driver " DRV_VERSION " ");
53 MODULE_LICENSE("GPL");
54 MODULE_VERSION(DRV_VERSION);
55
56 static const u32 default_msg
57 = NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK
58 | NETIF_MSG_IFUP | NETIF_MSG_IFDOWN;
59
60 static int debug = -1; /* defaults above */
61 module_param(debug, int, 0);
62 MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)");
63
64 static int msi;
65 module_param(msi, int, 0);
66 MODULE_PARM_DESC(msi, "Turn on Message Signaled Interrupts.");
67
68 static DEFINE_PCI_DEVICE_TABLE(ql3xxx_pci_tbl) = {
69 {PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, QL3022_DEVICE_ID)},
70 {PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, QL3032_DEVICE_ID)},
71 /* required last entry */
72 {0,}
73 };
74
75 MODULE_DEVICE_TABLE(pci, ql3xxx_pci_tbl);
76
77 /*
78 * These are the known PHY's which are used
79 */
80 enum PHY_DEVICE_TYPE {
81 PHY_TYPE_UNKNOWN = 0,
82 PHY_VITESSE_VSC8211,
83 PHY_AGERE_ET1011C,
84 MAX_PHY_DEV_TYPES
85 };
86
87 struct PHY_DEVICE_INFO {
88 const enum PHY_DEVICE_TYPE phyDevice;
89 const u32 phyIdOUI;
90 const u16 phyIdModel;
91 const char *name;
92 };
93
94 static const struct PHY_DEVICE_INFO PHY_DEVICES[] = {
95 {PHY_TYPE_UNKNOWN, 0x000000, 0x0, "PHY_TYPE_UNKNOWN"},
96 {PHY_VITESSE_VSC8211, 0x0003f1, 0xb, "PHY_VITESSE_VSC8211"},
97 {PHY_AGERE_ET1011C, 0x00a0bc, 0x1, "PHY_AGERE_ET1011C"},
98 };
99
100
101 /*
102 * Caller must take hw_lock.
103 */
104 static int ql_sem_spinlock(struct ql3_adapter *qdev,
105 u32 sem_mask, u32 sem_bits)
106 {
107 struct ql3xxx_port_registers __iomem *port_regs =
108 qdev->mem_map_registers;
109 u32 value;
110 unsigned int seconds = 3;
111
112 do {
113 writel((sem_mask | sem_bits),
114 &port_regs->CommonRegs.semaphoreReg);
115 value = readl(&port_regs->CommonRegs.semaphoreReg);
116 if ((value & (sem_mask >> 16)) == sem_bits)
117 return 0;
118 ssleep(1);
119 } while (--seconds);
120 return -1;
121 }
122
123 static void ql_sem_unlock(struct ql3_adapter *qdev, u32 sem_mask)
124 {
125 struct ql3xxx_port_registers __iomem *port_regs =
126 qdev->mem_map_registers;
127 writel(sem_mask, &port_regs->CommonRegs.semaphoreReg);
128 readl(&port_regs->CommonRegs.semaphoreReg);
129 }
130
131 static int ql_sem_lock(struct ql3_adapter *qdev, u32 sem_mask, u32 sem_bits)
132 {
133 struct ql3xxx_port_registers __iomem *port_regs =
134 qdev->mem_map_registers;
135 u32 value;
136
137 writel((sem_mask | sem_bits), &port_regs->CommonRegs.semaphoreReg);
138 value = readl(&port_regs->CommonRegs.semaphoreReg);
139 return ((value & (sem_mask >> 16)) == sem_bits);
140 }
141
142 /*
143 * Caller holds hw_lock.
144 */
145 static int ql_wait_for_drvr_lock(struct ql3_adapter *qdev)
146 {
147 int i = 0;
148
149 while (i < 10) {
150 if (i)
151 ssleep(1);
152
153 if (ql_sem_lock(qdev,
154 QL_DRVR_SEM_MASK,
155 (QL_RESOURCE_BITS_BASE_CODE | (qdev->mac_index)
156 * 2) << 1)) {
157 netdev_printk(KERN_DEBUG, qdev->ndev,
158 "driver lock acquired\n");
159 return 1;
160 }
161 }
162
163 netdev_err(qdev->ndev, "Timed out waiting for driver lock...\n");
164 return 0;
165 }
166
167 static void ql_set_register_page(struct ql3_adapter *qdev, u32 page)
168 {
169 struct ql3xxx_port_registers __iomem *port_regs =
170 qdev->mem_map_registers;
171
172 writel(((ISP_CONTROL_NP_MASK << 16) | page),
173 &port_regs->CommonRegs.ispControlStatus);
174 readl(&port_regs->CommonRegs.ispControlStatus);
175 qdev->current_page = page;
176 }
177
178 static u32 ql_read_common_reg_l(struct ql3_adapter *qdev, u32 __iomem *reg)
179 {
180 u32 value;
181 unsigned long hw_flags;
182
183 spin_lock_irqsave(&qdev->hw_lock, hw_flags);
184 value = readl(reg);
185 spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
186
187 return value;
188 }
189
190 static u32 ql_read_common_reg(struct ql3_adapter *qdev, u32 __iomem *reg)
191 {
192 return readl(reg);
193 }
194
195 static u32 ql_read_page0_reg_l(struct ql3_adapter *qdev, u32 __iomem *reg)
196 {
197 u32 value;
198 unsigned long hw_flags;
199
200 spin_lock_irqsave(&qdev->hw_lock, hw_flags);
201
202 if (qdev->current_page != 0)
203 ql_set_register_page(qdev, 0);
204 value = readl(reg);
205
206 spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
207 return value;
208 }
209
210 static u32 ql_read_page0_reg(struct ql3_adapter *qdev, u32 __iomem *reg)
211 {
212 if (qdev->current_page != 0)
213 ql_set_register_page(qdev, 0);
214 return readl(reg);
215 }
216
217 static void ql_write_common_reg_l(struct ql3_adapter *qdev,
218 u32 __iomem *reg, u32 value)
219 {
220 unsigned long hw_flags;
221
222 spin_lock_irqsave(&qdev->hw_lock, hw_flags);
223 writel(value, reg);
224 readl(reg);
225 spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
226 }
227
228 static void ql_write_common_reg(struct ql3_adapter *qdev,
229 u32 __iomem *reg, u32 value)
230 {
231 writel(value, reg);
232 readl(reg);
233 }
234
235 static void ql_write_nvram_reg(struct ql3_adapter *qdev,
236 u32 __iomem *reg, u32 value)
237 {
238 writel(value, reg);
239 readl(reg);
240 udelay(1);
241 }
242
243 static void ql_write_page0_reg(struct ql3_adapter *qdev,
244 u32 __iomem *reg, u32 value)
245 {
246 if (qdev->current_page != 0)
247 ql_set_register_page(qdev, 0);
248 writel(value, reg);
249 readl(reg);
250 }
251
252 /*
253 * Caller holds hw_lock. Only called during init.
254 */
255 static void ql_write_page1_reg(struct ql3_adapter *qdev,
256 u32 __iomem *reg, u32 value)
257 {
258 if (qdev->current_page != 1)
259 ql_set_register_page(qdev, 1);
260 writel(value, reg);
261 readl(reg);
262 }
263
264 /*
265 * Caller holds hw_lock. Only called during init.
266 */
267 static void ql_write_page2_reg(struct ql3_adapter *qdev,
268 u32 __iomem *reg, u32 value)
269 {
270 if (qdev->current_page != 2)
271 ql_set_register_page(qdev, 2);
272 writel(value, reg);
273 readl(reg);
274 }
275
276 static void ql_disable_interrupts(struct ql3_adapter *qdev)
277 {
278 struct ql3xxx_port_registers __iomem *port_regs =
279 qdev->mem_map_registers;
280
281 ql_write_common_reg_l(qdev, &port_regs->CommonRegs.ispInterruptMaskReg,
282 (ISP_IMR_ENABLE_INT << 16));
283
284 }
285
286 static void ql_enable_interrupts(struct ql3_adapter *qdev)
287 {
288 struct ql3xxx_port_registers __iomem *port_regs =
289 qdev->mem_map_registers;
290
291 ql_write_common_reg_l(qdev, &port_regs->CommonRegs.ispInterruptMaskReg,
292 ((0xff << 16) | ISP_IMR_ENABLE_INT));
293
294 }
295
296 static void ql_release_to_lrg_buf_free_list(struct ql3_adapter *qdev,
297 struct ql_rcv_buf_cb *lrg_buf_cb)
298 {
299 dma_addr_t map;
300 int err;
301 lrg_buf_cb->next = NULL;
302
303 if (qdev->lrg_buf_free_tail == NULL) { /* The list is empty */
304 qdev->lrg_buf_free_head = qdev->lrg_buf_free_tail = lrg_buf_cb;
305 } else {
306 qdev->lrg_buf_free_tail->next = lrg_buf_cb;
307 qdev->lrg_buf_free_tail = lrg_buf_cb;
308 }
309
310 if (!lrg_buf_cb->skb) {
311 lrg_buf_cb->skb = netdev_alloc_skb(qdev->ndev,
312 qdev->lrg_buffer_len);
313 if (unlikely(!lrg_buf_cb->skb)) {
314 netdev_err(qdev->ndev, "failed netdev_alloc_skb()\n");
315 qdev->lrg_buf_skb_check++;
316 } else {
317 /*
318 * We save some space to copy the ethhdr from first
319 * buffer
320 */
321 skb_reserve(lrg_buf_cb->skb, QL_HEADER_SPACE);
322 map = pci_map_single(qdev->pdev,
323 lrg_buf_cb->skb->data,
324 qdev->lrg_buffer_len -
325 QL_HEADER_SPACE,
326 PCI_DMA_FROMDEVICE);
327 err = pci_dma_mapping_error(qdev->pdev, map);
328 if (err) {
329 netdev_err(qdev->ndev,
330 "PCI mapping failed with error: %d\n",
331 err);
332 dev_kfree_skb(lrg_buf_cb->skb);
333 lrg_buf_cb->skb = NULL;
334
335 qdev->lrg_buf_skb_check++;
336 return;
337 }
338
339 lrg_buf_cb->buf_phy_addr_low =
340 cpu_to_le32(LS_64BITS(map));
341 lrg_buf_cb->buf_phy_addr_high =
342 cpu_to_le32(MS_64BITS(map));
343 dma_unmap_addr_set(lrg_buf_cb, mapaddr, map);
344 dma_unmap_len_set(lrg_buf_cb, maplen,
345 qdev->lrg_buffer_len -
346 QL_HEADER_SPACE);
347 }
348 }
349
350 qdev->lrg_buf_free_count++;
351 }
352
353 static struct ql_rcv_buf_cb *ql_get_from_lrg_buf_free_list(struct ql3_adapter
354 *qdev)
355 {
356 struct ql_rcv_buf_cb *lrg_buf_cb = qdev->lrg_buf_free_head;
357
358 if (lrg_buf_cb != NULL) {
359 qdev->lrg_buf_free_head = lrg_buf_cb->next;
360 if (qdev->lrg_buf_free_head == NULL)
361 qdev->lrg_buf_free_tail = NULL;
362 qdev->lrg_buf_free_count--;
363 }
364
365 return lrg_buf_cb;
366 }
367
368 static u32 addrBits = EEPROM_NO_ADDR_BITS;
369 static u32 dataBits = EEPROM_NO_DATA_BITS;
370
371 static void fm93c56a_deselect(struct ql3_adapter *qdev);
372 static void eeprom_readword(struct ql3_adapter *qdev, u32 eepromAddr,
373 unsigned short *value);
374
375 /*
376 * Caller holds hw_lock.
377 */
378 static void fm93c56a_select(struct ql3_adapter *qdev)
379 {
380 struct ql3xxx_port_registers __iomem *port_regs =
381 qdev->mem_map_registers;
382 u32 *spir = &port_regs->CommonRegs.serialPortInterfaceReg;
383
384 qdev->eeprom_cmd_data = AUBURN_EEPROM_CS_1;
385 ql_write_nvram_reg(qdev, spir, ISP_NVRAM_MASK | qdev->eeprom_cmd_data);
386 ql_write_nvram_reg(qdev, spir,
387 ((ISP_NVRAM_MASK << 16) | qdev->eeprom_cmd_data));
388 }
389
390 /*
391 * Caller holds hw_lock.
392 */
393 static void fm93c56a_cmd(struct ql3_adapter *qdev, u32 cmd, u32 eepromAddr)
394 {
395 int i;
396 u32 mask;
397 u32 dataBit;
398 u32 previousBit;
399 struct ql3xxx_port_registers __iomem *port_regs =
400 qdev->mem_map_registers;
401 u32 *spir = &port_regs->CommonRegs.serialPortInterfaceReg;
402
403 /* Clock in a zero, then do the start bit */
404 ql_write_nvram_reg(qdev, spir,
405 (ISP_NVRAM_MASK | qdev->eeprom_cmd_data |
406 AUBURN_EEPROM_DO_1));
407 ql_write_nvram_reg(qdev, spir,
408 (ISP_NVRAM_MASK | qdev->eeprom_cmd_data |
409 AUBURN_EEPROM_DO_1 | AUBURN_EEPROM_CLK_RISE));
410 ql_write_nvram_reg(qdev, spir,
411 (ISP_NVRAM_MASK | qdev->eeprom_cmd_data |
412 AUBURN_EEPROM_DO_1 | AUBURN_EEPROM_CLK_FALL));
413
414 mask = 1 << (FM93C56A_CMD_BITS - 1);
415 /* Force the previous data bit to be different */
416 previousBit = 0xffff;
417 for (i = 0; i < FM93C56A_CMD_BITS; i++) {
418 dataBit = (cmd & mask)
419 ? AUBURN_EEPROM_DO_1
420 : AUBURN_EEPROM_DO_0;
421 if (previousBit != dataBit) {
422 /* If the bit changed, change the DO state to match */
423 ql_write_nvram_reg(qdev, spir,
424 (ISP_NVRAM_MASK |
425 qdev->eeprom_cmd_data | dataBit));
426 previousBit = dataBit;
427 }
428 ql_write_nvram_reg(qdev, spir,
429 (ISP_NVRAM_MASK | qdev->eeprom_cmd_data |
430 dataBit | AUBURN_EEPROM_CLK_RISE));
431 ql_write_nvram_reg(qdev, spir,
432 (ISP_NVRAM_MASK | qdev->eeprom_cmd_data |
433 dataBit | AUBURN_EEPROM_CLK_FALL));
434 cmd = cmd << 1;
435 }
436
437 mask = 1 << (addrBits - 1);
438 /* Force the previous data bit to be different */
439 previousBit = 0xffff;
440 for (i = 0; i < addrBits; i++) {
441 dataBit = (eepromAddr & mask) ? AUBURN_EEPROM_DO_1
442 : AUBURN_EEPROM_DO_0;
443 if (previousBit != dataBit) {
444 /*
445 * If the bit changed, then change the DO state to
446 * match
447 */
448 ql_write_nvram_reg(qdev, spir,
449 (ISP_NVRAM_MASK |
450 qdev->eeprom_cmd_data | dataBit));
451 previousBit = dataBit;
452 }
453 ql_write_nvram_reg(qdev, spir,
454 (ISP_NVRAM_MASK | qdev->eeprom_cmd_data |
455 dataBit | AUBURN_EEPROM_CLK_RISE));
456 ql_write_nvram_reg(qdev, spir,
457 (ISP_NVRAM_MASK | qdev->eeprom_cmd_data |
458 dataBit | AUBURN_EEPROM_CLK_FALL));
459 eepromAddr = eepromAddr << 1;
460 }
461 }
462
463 /*
464 * Caller holds hw_lock.
465 */
466 static void fm93c56a_deselect(struct ql3_adapter *qdev)
467 {
468 struct ql3xxx_port_registers __iomem *port_regs =
469 qdev->mem_map_registers;
470 u32 *spir = &port_regs->CommonRegs.serialPortInterfaceReg;
471
472 qdev->eeprom_cmd_data = AUBURN_EEPROM_CS_0;
473 ql_write_nvram_reg(qdev, spir, ISP_NVRAM_MASK | qdev->eeprom_cmd_data);
474 }
475
476 /*
477 * Caller holds hw_lock.
478 */
479 static void fm93c56a_datain(struct ql3_adapter *qdev, unsigned short *value)
480 {
481 int i;
482 u32 data = 0;
483 u32 dataBit;
484 struct ql3xxx_port_registers __iomem *port_regs =
485 qdev->mem_map_registers;
486 u32 *spir = &port_regs->CommonRegs.serialPortInterfaceReg;
487
488 /* Read the data bits */
489 /* The first bit is a dummy. Clock right over it. */
490 for (i = 0; i < dataBits; i++) {
491 ql_write_nvram_reg(qdev, spir,
492 ISP_NVRAM_MASK | qdev->eeprom_cmd_data |
493 AUBURN_EEPROM_CLK_RISE);
494 ql_write_nvram_reg(qdev, spir,
495 ISP_NVRAM_MASK | qdev->eeprom_cmd_data |
496 AUBURN_EEPROM_CLK_FALL);
497 dataBit = (ql_read_common_reg(qdev, spir) &
498 AUBURN_EEPROM_DI_1) ? 1 : 0;
499 data = (data << 1) | dataBit;
500 }
501 *value = (u16)data;
502 }
503
504 /*
505 * Caller holds hw_lock.
506 */
507 static void eeprom_readword(struct ql3_adapter *qdev,
508 u32 eepromAddr, unsigned short *value)
509 {
510 fm93c56a_select(qdev);
511 fm93c56a_cmd(qdev, (int)FM93C56A_READ, eepromAddr);
512 fm93c56a_datain(qdev, value);
513 fm93c56a_deselect(qdev);
514 }
515
516 static void ql_set_mac_addr(struct net_device *ndev, u16 *addr)
517 {
518 __le16 *p = (__le16 *)ndev->dev_addr;
519 p[0] = cpu_to_le16(addr[0]);
520 p[1] = cpu_to_le16(addr[1]);
521 p[2] = cpu_to_le16(addr[2]);
522 }
523
524 static int ql_get_nvram_params(struct ql3_adapter *qdev)
525 {
526 u16 *pEEPROMData;
527 u16 checksum = 0;
528 u32 index;
529 unsigned long hw_flags;
530
531 spin_lock_irqsave(&qdev->hw_lock, hw_flags);
532
533 pEEPROMData = (u16 *)&qdev->nvram_data;
534 qdev->eeprom_cmd_data = 0;
535 if (ql_sem_spinlock(qdev, QL_NVRAM_SEM_MASK,
536 (QL_RESOURCE_BITS_BASE_CODE | (qdev->mac_index) *
537 2) << 10)) {
538 pr_err("%s: Failed ql_sem_spinlock()\n", __func__);
539 spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
540 return -1;
541 }
542
543 for (index = 0; index < EEPROM_SIZE; index++) {
544 eeprom_readword(qdev, index, pEEPROMData);
545 checksum += *pEEPROMData;
546 pEEPROMData++;
547 }
548 ql_sem_unlock(qdev, QL_NVRAM_SEM_MASK);
549
550 if (checksum != 0) {
551 netdev_err(qdev->ndev, "checksum should be zero, is %x!!\n",
552 checksum);
553 spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
554 return -1;
555 }
556
557 spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
558 return checksum;
559 }
560
561 static const u32 PHYAddr[2] = {
562 PORT0_PHY_ADDRESS, PORT1_PHY_ADDRESS
563 };
564
565 static int ql_wait_for_mii_ready(struct ql3_adapter *qdev)
566 {
567 struct ql3xxx_port_registers __iomem *port_regs =
568 qdev->mem_map_registers;
569 u32 temp;
570 int count = 1000;
571
572 while (count) {
573 temp = ql_read_page0_reg(qdev, &port_regs->macMIIStatusReg);
574 if (!(temp & MAC_MII_STATUS_BSY))
575 return 0;
576 udelay(10);
577 count--;
578 }
579 return -1;
580 }
581
582 static void ql_mii_enable_scan_mode(struct ql3_adapter *qdev)
583 {
584 struct ql3xxx_port_registers __iomem *port_regs =
585 qdev->mem_map_registers;
586 u32 scanControl;
587
588 if (qdev->numPorts > 1) {
589 /* Auto scan will cycle through multiple ports */
590 scanControl = MAC_MII_CONTROL_AS | MAC_MII_CONTROL_SC;
591 } else {
592 scanControl = MAC_MII_CONTROL_SC;
593 }
594
595 /*
596 * Scan register 1 of PHY/PETBI,
597 * Set up to scan both devices
598 * The autoscan starts from the first register, completes
599 * the last one before rolling over to the first
600 */
601 ql_write_page0_reg(qdev, &port_regs->macMIIMgmtAddrReg,
602 PHYAddr[0] | MII_SCAN_REGISTER);
603
604 ql_write_page0_reg(qdev, &port_regs->macMIIMgmtControlReg,
605 (scanControl) |
606 ((MAC_MII_CONTROL_SC | MAC_MII_CONTROL_AS) << 16));
607 }
608
609 static u8 ql_mii_disable_scan_mode(struct ql3_adapter *qdev)
610 {
611 u8 ret;
612 struct ql3xxx_port_registers __iomem *port_regs =
613 qdev->mem_map_registers;
614
615 /* See if scan mode is enabled before we turn it off */
616 if (ql_read_page0_reg(qdev, &port_regs->macMIIMgmtControlReg) &
617 (MAC_MII_CONTROL_AS | MAC_MII_CONTROL_SC)) {
618 /* Scan is enabled */
619 ret = 1;
620 } else {
621 /* Scan is disabled */
622 ret = 0;
623 }
624
625 /*
626 * When disabling scan mode you must first change the MII register
627 * address
628 */
629 ql_write_page0_reg(qdev, &port_regs->macMIIMgmtAddrReg,
630 PHYAddr[0] | MII_SCAN_REGISTER);
631
632 ql_write_page0_reg(qdev, &port_regs->macMIIMgmtControlReg,
633 ((MAC_MII_CONTROL_SC | MAC_MII_CONTROL_AS |
634 MAC_MII_CONTROL_RC) << 16));
635
636 return ret;
637 }
638
639 static int ql_mii_write_reg_ex(struct ql3_adapter *qdev,
640 u16 regAddr, u16 value, u32 phyAddr)
641 {
642 struct ql3xxx_port_registers __iomem *port_regs =
643 qdev->mem_map_registers;
644 u8 scanWasEnabled;
645
646 scanWasEnabled = ql_mii_disable_scan_mode(qdev);
647
648 if (ql_wait_for_mii_ready(qdev)) {
649 netif_warn(qdev, link, qdev->ndev, TIMED_OUT_MSG);
650 return -1;
651 }
652
653 ql_write_page0_reg(qdev, &port_regs->macMIIMgmtAddrReg,
654 phyAddr | regAddr);
655
656 ql_write_page0_reg(qdev, &port_regs->macMIIMgmtDataReg, value);
657
658 /* Wait for write to complete 9/10/04 SJP */
659 if (ql_wait_for_mii_ready(qdev)) {
660 netif_warn(qdev, link, qdev->ndev, TIMED_OUT_MSG);
661 return -1;
662 }
663
664 if (scanWasEnabled)
665 ql_mii_enable_scan_mode(qdev);
666
667 return 0;
668 }
669
670 static int ql_mii_read_reg_ex(struct ql3_adapter *qdev, u16 regAddr,
671 u16 *value, u32 phyAddr)
672 {
673 struct ql3xxx_port_registers __iomem *port_regs =
674 qdev->mem_map_registers;
675 u8 scanWasEnabled;
676 u32 temp;
677
678 scanWasEnabled = ql_mii_disable_scan_mode(qdev);
679
680 if (ql_wait_for_mii_ready(qdev)) {
681 netif_warn(qdev, link, qdev->ndev, TIMED_OUT_MSG);
682 return -1;
683 }
684
685 ql_write_page0_reg(qdev, &port_regs->macMIIMgmtAddrReg,
686 phyAddr | regAddr);
687
688 ql_write_page0_reg(qdev, &port_regs->macMIIMgmtControlReg,
689 (MAC_MII_CONTROL_RC << 16));
690
691 ql_write_page0_reg(qdev, &port_regs->macMIIMgmtControlReg,
692 (MAC_MII_CONTROL_RC << 16) | MAC_MII_CONTROL_RC);
693
694 /* Wait for the read to complete */
695 if (ql_wait_for_mii_ready(qdev)) {
696 netif_warn(qdev, link, qdev->ndev, TIMED_OUT_MSG);
697 return -1;
698 }
699
700 temp = ql_read_page0_reg(qdev, &port_regs->macMIIMgmtDataReg);
701 *value = (u16) temp;
702
703 if (scanWasEnabled)
704 ql_mii_enable_scan_mode(qdev);
705
706 return 0;
707 }
708
709 static int ql_mii_write_reg(struct ql3_adapter *qdev, u16 regAddr, u16 value)
710 {
711 struct ql3xxx_port_registers __iomem *port_regs =
712 qdev->mem_map_registers;
713
714 ql_mii_disable_scan_mode(qdev);
715
716 if (ql_wait_for_mii_ready(qdev)) {
717 netif_warn(qdev, link, qdev->ndev, TIMED_OUT_MSG);
718 return -1;
719 }
720
721 ql_write_page0_reg(qdev, &port_regs->macMIIMgmtAddrReg,
722 qdev->PHYAddr | regAddr);
723
724 ql_write_page0_reg(qdev, &port_regs->macMIIMgmtDataReg, value);
725
726 /* Wait for write to complete. */
727 if (ql_wait_for_mii_ready(qdev)) {
728 netif_warn(qdev, link, qdev->ndev, TIMED_OUT_MSG);
729 return -1;
730 }
731
732 ql_mii_enable_scan_mode(qdev);
733
734 return 0;
735 }
736
737 static int ql_mii_read_reg(struct ql3_adapter *qdev, u16 regAddr, u16 *value)
738 {
739 u32 temp;
740 struct ql3xxx_port_registers __iomem *port_regs =
741 qdev->mem_map_registers;
742
743 ql_mii_disable_scan_mode(qdev);
744
745 if (ql_wait_for_mii_ready(qdev)) {
746 netif_warn(qdev, link, qdev->ndev, TIMED_OUT_MSG);
747 return -1;
748 }
749
750 ql_write_page0_reg(qdev, &port_regs->macMIIMgmtAddrReg,
751 qdev->PHYAddr | regAddr);
752
753 ql_write_page0_reg(qdev, &port_regs->macMIIMgmtControlReg,
754 (MAC_MII_CONTROL_RC << 16));
755
756 ql_write_page0_reg(qdev, &port_regs->macMIIMgmtControlReg,
757 (MAC_MII_CONTROL_RC << 16) | MAC_MII_CONTROL_RC);
758
759 /* Wait for the read to complete */
760 if (ql_wait_for_mii_ready(qdev)) {
761 netif_warn(qdev, link, qdev->ndev, TIMED_OUT_MSG);
762 return -1;
763 }
764
765 temp = ql_read_page0_reg(qdev, &port_regs->macMIIMgmtDataReg);
766 *value = (u16) temp;
767
768 ql_mii_enable_scan_mode(qdev);
769
770 return 0;
771 }
772
773 static void ql_petbi_reset(struct ql3_adapter *qdev)
774 {
775 ql_mii_write_reg(qdev, PETBI_CONTROL_REG, PETBI_CTRL_SOFT_RESET);
776 }
777
778 static void ql_petbi_start_neg(struct ql3_adapter *qdev)
779 {
780 u16 reg;
781
782 /* Enable Auto-negotiation sense */
783 ql_mii_read_reg(qdev, PETBI_TBI_CTRL, &reg);
784 reg |= PETBI_TBI_AUTO_SENSE;
785 ql_mii_write_reg(qdev, PETBI_TBI_CTRL, reg);
786
787 ql_mii_write_reg(qdev, PETBI_NEG_ADVER,
788 PETBI_NEG_PAUSE | PETBI_NEG_DUPLEX);
789
790 ql_mii_write_reg(qdev, PETBI_CONTROL_REG,
791 PETBI_CTRL_AUTO_NEG | PETBI_CTRL_RESTART_NEG |
792 PETBI_CTRL_FULL_DUPLEX | PETBI_CTRL_SPEED_1000);
793
794 }
795
796 static void ql_petbi_reset_ex(struct ql3_adapter *qdev)
797 {
798 ql_mii_write_reg_ex(qdev, PETBI_CONTROL_REG, PETBI_CTRL_SOFT_RESET,
799 PHYAddr[qdev->mac_index]);
800 }
801
802 static void ql_petbi_start_neg_ex(struct ql3_adapter *qdev)
803 {
804 u16 reg;
805
806 /* Enable Auto-negotiation sense */
807 ql_mii_read_reg_ex(qdev, PETBI_TBI_CTRL, &reg,
808 PHYAddr[qdev->mac_index]);
809 reg |= PETBI_TBI_AUTO_SENSE;
810 ql_mii_write_reg_ex(qdev, PETBI_TBI_CTRL, reg,
811 PHYAddr[qdev->mac_index]);
812
813 ql_mii_write_reg_ex(qdev, PETBI_NEG_ADVER,
814 PETBI_NEG_PAUSE | PETBI_NEG_DUPLEX,
815 PHYAddr[qdev->mac_index]);
816
817 ql_mii_write_reg_ex(qdev, PETBI_CONTROL_REG,
818 PETBI_CTRL_AUTO_NEG | PETBI_CTRL_RESTART_NEG |
819 PETBI_CTRL_FULL_DUPLEX | PETBI_CTRL_SPEED_1000,
820 PHYAddr[qdev->mac_index]);
821 }
822
823 static void ql_petbi_init(struct ql3_adapter *qdev)
824 {
825 ql_petbi_reset(qdev);
826 ql_petbi_start_neg(qdev);
827 }
828
829 static void ql_petbi_init_ex(struct ql3_adapter *qdev)
830 {
831 ql_petbi_reset_ex(qdev);
832 ql_petbi_start_neg_ex(qdev);
833 }
834
835 static int ql_is_petbi_neg_pause(struct ql3_adapter *qdev)
836 {
837 u16 reg;
838
839 if (ql_mii_read_reg(qdev, PETBI_NEG_PARTNER, &reg) < 0)
840 return 0;
841
842 return (reg & PETBI_NEG_PAUSE_MASK) == PETBI_NEG_PAUSE;
843 }
844
845 static void phyAgereSpecificInit(struct ql3_adapter *qdev, u32 miiAddr)
846 {
847 netdev_info(qdev->ndev, "enabling Agere specific PHY\n");
848 /* power down device bit 11 = 1 */
849 ql_mii_write_reg_ex(qdev, 0x00, 0x1940, miiAddr);
850 /* enable diagnostic mode bit 2 = 1 */
851 ql_mii_write_reg_ex(qdev, 0x12, 0x840e, miiAddr);
852 /* 1000MB amplitude adjust (see Agere errata) */
853 ql_mii_write_reg_ex(qdev, 0x10, 0x8805, miiAddr);
854 /* 1000MB amplitude adjust (see Agere errata) */
855 ql_mii_write_reg_ex(qdev, 0x11, 0xf03e, miiAddr);
856 /* 100MB amplitude adjust (see Agere errata) */
857 ql_mii_write_reg_ex(qdev, 0x10, 0x8806, miiAddr);
858 /* 100MB amplitude adjust (see Agere errata) */
859 ql_mii_write_reg_ex(qdev, 0x11, 0x003e, miiAddr);
860 /* 10MB amplitude adjust (see Agere errata) */
861 ql_mii_write_reg_ex(qdev, 0x10, 0x8807, miiAddr);
862 /* 10MB amplitude adjust (see Agere errata) */
863 ql_mii_write_reg_ex(qdev, 0x11, 0x1f00, miiAddr);
864 /* point to hidden reg 0x2806 */
865 ql_mii_write_reg_ex(qdev, 0x10, 0x2806, miiAddr);
866 /* Write new PHYAD w/bit 5 set */
867 ql_mii_write_reg_ex(qdev, 0x11,
868 0x0020 | (PHYAddr[qdev->mac_index] >> 8), miiAddr);
869 /*
870 * Disable diagnostic mode bit 2 = 0
871 * Power up device bit 11 = 0
872 * Link up (on) and activity (blink)
873 */
874 ql_mii_write_reg(qdev, 0x12, 0x840a);
875 ql_mii_write_reg(qdev, 0x00, 0x1140);
876 ql_mii_write_reg(qdev, 0x1c, 0xfaf0);
877 }
878
879 static enum PHY_DEVICE_TYPE getPhyType(struct ql3_adapter *qdev,
880 u16 phyIdReg0, u16 phyIdReg1)
881 {
882 enum PHY_DEVICE_TYPE result = PHY_TYPE_UNKNOWN;
883 u32 oui;
884 u16 model;
885 int i;
886
887 if (phyIdReg0 == 0xffff)
888 return result;
889
890 if (phyIdReg1 == 0xffff)
891 return result;
892
893 /* oui is split between two registers */
894 oui = (phyIdReg0 << 6) | ((phyIdReg1 & PHY_OUI_1_MASK) >> 10);
895
896 model = (phyIdReg1 & PHY_MODEL_MASK) >> 4;
897
898 /* Scan table for this PHY */
899 for (i = 0; i < MAX_PHY_DEV_TYPES; i++) {
900 if ((oui == PHY_DEVICES[i].phyIdOUI) &&
901 (model == PHY_DEVICES[i].phyIdModel)) {
902 netdev_info(qdev->ndev, "Phy: %s\n",
903 PHY_DEVICES[i].name);
904 result = PHY_DEVICES[i].phyDevice;
905 break;
906 }
907 }
908
909 return result;
910 }
911
912 static int ql_phy_get_speed(struct ql3_adapter *qdev)
913 {
914 u16 reg;
915
916 switch (qdev->phyType) {
917 case PHY_AGERE_ET1011C: {
918 if (ql_mii_read_reg(qdev, 0x1A, &reg) < 0)
919 return 0;
920
921 reg = (reg >> 8) & 3;
922 break;
923 }
924 default:
925 if (ql_mii_read_reg(qdev, AUX_CONTROL_STATUS, &reg) < 0)
926 return 0;
927
928 reg = (((reg & 0x18) >> 3) & 3);
929 }
930
931 switch (reg) {
932 case 2:
933 return SPEED_1000;
934 case 1:
935 return SPEED_100;
936 case 0:
937 return SPEED_10;
938 default:
939 return -1;
940 }
941 }
942
943 static int ql_is_full_dup(struct ql3_adapter *qdev)
944 {
945 u16 reg;
946
947 switch (qdev->phyType) {
948 case PHY_AGERE_ET1011C: {
949 if (ql_mii_read_reg(qdev, 0x1A, &reg))
950 return 0;
951
952 return ((reg & 0x0080) && (reg & 0x1000)) != 0;
953 }
954 case PHY_VITESSE_VSC8211:
955 default: {
956 if (ql_mii_read_reg(qdev, AUX_CONTROL_STATUS, &reg) < 0)
957 return 0;
958 return (reg & PHY_AUX_DUPLEX_STAT) != 0;
959 }
960 }
961 }
962
963 static int ql_is_phy_neg_pause(struct ql3_adapter *qdev)
964 {
965 u16 reg;
966
967 if (ql_mii_read_reg(qdev, PHY_NEG_PARTNER, &reg) < 0)
968 return 0;
969
970 return (reg & PHY_NEG_PAUSE) != 0;
971 }
972
973 static int PHY_Setup(struct ql3_adapter *qdev)
974 {
975 u16 reg1;
976 u16 reg2;
977 bool agereAddrChangeNeeded = false;
978 u32 miiAddr = 0;
979 int err;
980
981 /* Determine the PHY we are using by reading the ID's */
982 err = ql_mii_read_reg(qdev, PHY_ID_0_REG, &reg1);
983 if (err != 0) {
984 netdev_err(qdev->ndev, "Could not read from reg PHY_ID_0_REG\n");
985 return err;
986 }
987
988 err = ql_mii_read_reg(qdev, PHY_ID_1_REG, &reg2);
989 if (err != 0) {
990 netdev_err(qdev->ndev, "Could not read from reg PHY_ID_1_REG\n");
991 return err;
992 }
993
994 /* Check if we have a Agere PHY */
995 if ((reg1 == 0xffff) || (reg2 == 0xffff)) {
996
997 /* Determine which MII address we should be using
998 determined by the index of the card */
999 if (qdev->mac_index == 0)
1000 miiAddr = MII_AGERE_ADDR_1;
1001 else
1002 miiAddr = MII_AGERE_ADDR_2;
1003
1004 err = ql_mii_read_reg_ex(qdev, PHY_ID_0_REG, &reg1, miiAddr);
1005 if (err != 0) {
1006 netdev_err(qdev->ndev,
1007 "Could not read from reg PHY_ID_0_REG after Agere detected\n");
1008 return err;
1009 }
1010
1011 err = ql_mii_read_reg_ex(qdev, PHY_ID_1_REG, &reg2, miiAddr);
1012 if (err != 0) {
1013 netdev_err(qdev->ndev, "Could not read from reg PHY_ID_1_REG after Agere detected\n");
1014 return err;
1015 }
1016
1017 /* We need to remember to initialize the Agere PHY */
1018 agereAddrChangeNeeded = true;
1019 }
1020
1021 /* Determine the particular PHY we have on board to apply
1022 PHY specific initializations */
1023 qdev->phyType = getPhyType(qdev, reg1, reg2);
1024
1025 if ((qdev->phyType == PHY_AGERE_ET1011C) && agereAddrChangeNeeded) {
1026 /* need this here so address gets changed */
1027 phyAgereSpecificInit(qdev, miiAddr);
1028 } else if (qdev->phyType == PHY_TYPE_UNKNOWN) {
1029 netdev_err(qdev->ndev, "PHY is unknown\n");
1030 return -EIO;
1031 }
1032
1033 return 0;
1034 }
1035
1036 /*
1037 * Caller holds hw_lock.
1038 */
1039 static void ql_mac_enable(struct ql3_adapter *qdev, u32 enable)
1040 {
1041 struct ql3xxx_port_registers __iomem *port_regs =
1042 qdev->mem_map_registers;
1043 u32 value;
1044
1045 if (enable)
1046 value = (MAC_CONFIG_REG_PE | (MAC_CONFIG_REG_PE << 16));
1047 else
1048 value = (MAC_CONFIG_REG_PE << 16);
1049
1050 if (qdev->mac_index)
1051 ql_write_page0_reg(qdev, &port_regs->mac1ConfigReg, value);
1052 else
1053 ql_write_page0_reg(qdev, &port_regs->mac0ConfigReg, value);
1054 }
1055
1056 /*
1057 * Caller holds hw_lock.
1058 */
1059 static void ql_mac_cfg_soft_reset(struct ql3_adapter *qdev, u32 enable)
1060 {
1061 struct ql3xxx_port_registers __iomem *port_regs =
1062 qdev->mem_map_registers;
1063 u32 value;
1064
1065 if (enable)
1066 value = (MAC_CONFIG_REG_SR | (MAC_CONFIG_REG_SR << 16));
1067 else
1068 value = (MAC_CONFIG_REG_SR << 16);
1069
1070 if (qdev->mac_index)
1071 ql_write_page0_reg(qdev, &port_regs->mac1ConfigReg, value);
1072 else
1073 ql_write_page0_reg(qdev, &port_regs->mac0ConfigReg, value);
1074 }
1075
1076 /*
1077 * Caller holds hw_lock.
1078 */
1079 static void ql_mac_cfg_gig(struct ql3_adapter *qdev, u32 enable)
1080 {
1081 struct ql3xxx_port_registers __iomem *port_regs =
1082 qdev->mem_map_registers;
1083 u32 value;
1084
1085 if (enable)
1086 value = (MAC_CONFIG_REG_GM | (MAC_CONFIG_REG_GM << 16));
1087 else
1088 value = (MAC_CONFIG_REG_GM << 16);
1089
1090 if (qdev->mac_index)
1091 ql_write_page0_reg(qdev, &port_regs->mac1ConfigReg, value);
1092 else
1093 ql_write_page0_reg(qdev, &port_regs->mac0ConfigReg, value);
1094 }
1095
1096 /*
1097 * Caller holds hw_lock.
1098 */
1099 static void ql_mac_cfg_full_dup(struct ql3_adapter *qdev, u32 enable)
1100 {
1101 struct ql3xxx_port_registers __iomem *port_regs =
1102 qdev->mem_map_registers;
1103 u32 value;
1104
1105 if (enable)
1106 value = (MAC_CONFIG_REG_FD | (MAC_CONFIG_REG_FD << 16));
1107 else
1108 value = (MAC_CONFIG_REG_FD << 16);
1109
1110 if (qdev->mac_index)
1111 ql_write_page0_reg(qdev, &port_regs->mac1ConfigReg, value);
1112 else
1113 ql_write_page0_reg(qdev, &port_regs->mac0ConfigReg, value);
1114 }
1115
1116 /*
1117 * Caller holds hw_lock.
1118 */
1119 static void ql_mac_cfg_pause(struct ql3_adapter *qdev, u32 enable)
1120 {
1121 struct ql3xxx_port_registers __iomem *port_regs =
1122 qdev->mem_map_registers;
1123 u32 value;
1124
1125 if (enable)
1126 value =
1127 ((MAC_CONFIG_REG_TF | MAC_CONFIG_REG_RF) |
1128 ((MAC_CONFIG_REG_TF | MAC_CONFIG_REG_RF) << 16));
1129 else
1130 value = ((MAC_CONFIG_REG_TF | MAC_CONFIG_REG_RF) << 16);
1131
1132 if (qdev->mac_index)
1133 ql_write_page0_reg(qdev, &port_regs->mac1ConfigReg, value);
1134 else
1135 ql_write_page0_reg(qdev, &port_regs->mac0ConfigReg, value);
1136 }
1137
1138 /*
1139 * Caller holds hw_lock.
1140 */
1141 static int ql_is_fiber(struct ql3_adapter *qdev)
1142 {
1143 struct ql3xxx_port_registers __iomem *port_regs =
1144 qdev->mem_map_registers;
1145 u32 bitToCheck = 0;
1146 u32 temp;
1147
1148 switch (qdev->mac_index) {
1149 case 0:
1150 bitToCheck = PORT_STATUS_SM0;
1151 break;
1152 case 1:
1153 bitToCheck = PORT_STATUS_SM1;
1154 break;
1155 }
1156
1157 temp = ql_read_page0_reg(qdev, &port_regs->portStatus);
1158 return (temp & bitToCheck) != 0;
1159 }
1160
1161 static int ql_is_auto_cfg(struct ql3_adapter *qdev)
1162 {
1163 u16 reg;
1164 ql_mii_read_reg(qdev, 0x00, &reg);
1165 return (reg & 0x1000) != 0;
1166 }
1167
1168 /*
1169 * Caller holds hw_lock.
1170 */
1171 static int ql_is_auto_neg_complete(struct ql3_adapter *qdev)
1172 {
1173 struct ql3xxx_port_registers __iomem *port_regs =
1174 qdev->mem_map_registers;
1175 u32 bitToCheck = 0;
1176 u32 temp;
1177
1178 switch (qdev->mac_index) {
1179 case 0:
1180 bitToCheck = PORT_STATUS_AC0;
1181 break;
1182 case 1:
1183 bitToCheck = PORT_STATUS_AC1;
1184 break;
1185 }
1186
1187 temp = ql_read_page0_reg(qdev, &port_regs->portStatus);
1188 if (temp & bitToCheck) {
1189 netif_info(qdev, link, qdev->ndev, "Auto-Negotiate complete\n");
1190 return 1;
1191 }
1192 netif_info(qdev, link, qdev->ndev, "Auto-Negotiate incomplete\n");
1193 return 0;
1194 }
1195
1196 /*
1197 * ql_is_neg_pause() returns 1 if pause was negotiated to be on
1198 */
1199 static int ql_is_neg_pause(struct ql3_adapter *qdev)
1200 {
1201 if (ql_is_fiber(qdev))
1202 return ql_is_petbi_neg_pause(qdev);
1203 else
1204 return ql_is_phy_neg_pause(qdev);
1205 }
1206
1207 static int ql_auto_neg_error(struct ql3_adapter *qdev)
1208 {
1209 struct ql3xxx_port_registers __iomem *port_regs =
1210 qdev->mem_map_registers;
1211 u32 bitToCheck = 0;
1212 u32 temp;
1213
1214 switch (qdev->mac_index) {
1215 case 0:
1216 bitToCheck = PORT_STATUS_AE0;
1217 break;
1218 case 1:
1219 bitToCheck = PORT_STATUS_AE1;
1220 break;
1221 }
1222 temp = ql_read_page0_reg(qdev, &port_regs->portStatus);
1223 return (temp & bitToCheck) != 0;
1224 }
1225
1226 static u32 ql_get_link_speed(struct ql3_adapter *qdev)
1227 {
1228 if (ql_is_fiber(qdev))
1229 return SPEED_1000;
1230 else
1231 return ql_phy_get_speed(qdev);
1232 }
1233
1234 static int ql_is_link_full_dup(struct ql3_adapter *qdev)
1235 {
1236 if (ql_is_fiber(qdev))
1237 return 1;
1238 else
1239 return ql_is_full_dup(qdev);
1240 }
1241
1242 /*
1243 * Caller holds hw_lock.
1244 */
1245 static int ql_link_down_detect(struct ql3_adapter *qdev)
1246 {
1247 struct ql3xxx_port_registers __iomem *port_regs =
1248 qdev->mem_map_registers;
1249 u32 bitToCheck = 0;
1250 u32 temp;
1251
1252 switch (qdev->mac_index) {
1253 case 0:
1254 bitToCheck = ISP_CONTROL_LINK_DN_0;
1255 break;
1256 case 1:
1257 bitToCheck = ISP_CONTROL_LINK_DN_1;
1258 break;
1259 }
1260
1261 temp =
1262 ql_read_common_reg(qdev, &port_regs->CommonRegs.ispControlStatus);
1263 return (temp & bitToCheck) != 0;
1264 }
1265
1266 /*
1267 * Caller holds hw_lock.
1268 */
1269 static int ql_link_down_detect_clear(struct ql3_adapter *qdev)
1270 {
1271 struct ql3xxx_port_registers __iomem *port_regs =
1272 qdev->mem_map_registers;
1273
1274 switch (qdev->mac_index) {
1275 case 0:
1276 ql_write_common_reg(qdev,
1277 &port_regs->CommonRegs.ispControlStatus,
1278 (ISP_CONTROL_LINK_DN_0) |
1279 (ISP_CONTROL_LINK_DN_0 << 16));
1280 break;
1281
1282 case 1:
1283 ql_write_common_reg(qdev,
1284 &port_regs->CommonRegs.ispControlStatus,
1285 (ISP_CONTROL_LINK_DN_1) |
1286 (ISP_CONTROL_LINK_DN_1 << 16));
1287 break;
1288
1289 default:
1290 return 1;
1291 }
1292
1293 return 0;
1294 }
1295
1296 /*
1297 * Caller holds hw_lock.
1298 */
1299 static int ql_this_adapter_controls_port(struct ql3_adapter *qdev)
1300 {
1301 struct ql3xxx_port_registers __iomem *port_regs =
1302 qdev->mem_map_registers;
1303 u32 bitToCheck = 0;
1304 u32 temp;
1305
1306 switch (qdev->mac_index) {
1307 case 0:
1308 bitToCheck = PORT_STATUS_F1_ENABLED;
1309 break;
1310 case 1:
1311 bitToCheck = PORT_STATUS_F3_ENABLED;
1312 break;
1313 default:
1314 break;
1315 }
1316
1317 temp = ql_read_page0_reg(qdev, &port_regs->portStatus);
1318 if (temp & bitToCheck) {
1319 netif_printk(qdev, link, KERN_DEBUG, qdev->ndev,
1320 "not link master\n");
1321 return 0;
1322 }
1323
1324 netif_printk(qdev, link, KERN_DEBUG, qdev->ndev, "link master\n");
1325 return 1;
1326 }
1327
1328 static void ql_phy_reset_ex(struct ql3_adapter *qdev)
1329 {
1330 ql_mii_write_reg_ex(qdev, CONTROL_REG, PHY_CTRL_SOFT_RESET,
1331 PHYAddr[qdev->mac_index]);
1332 }
1333
1334 static void ql_phy_start_neg_ex(struct ql3_adapter *qdev)
1335 {
1336 u16 reg;
1337 u16 portConfiguration;
1338
1339 if (qdev->phyType == PHY_AGERE_ET1011C)
1340 ql_mii_write_reg(qdev, 0x13, 0x0000);
1341 /* turn off external loopback */
1342
1343 if (qdev->mac_index == 0)
1344 portConfiguration =
1345 qdev->nvram_data.macCfg_port0.portConfiguration;
1346 else
1347 portConfiguration =
1348 qdev->nvram_data.macCfg_port1.portConfiguration;
1349
1350 /* Some HBA's in the field are set to 0 and they need to
1351 be reinterpreted with a default value */
1352 if (portConfiguration == 0)
1353 portConfiguration = PORT_CONFIG_DEFAULT;
1354
1355 /* Set the 1000 advertisements */
1356 ql_mii_read_reg_ex(qdev, PHY_GIG_CONTROL, &reg,
1357 PHYAddr[qdev->mac_index]);
1358 reg &= ~PHY_GIG_ALL_PARAMS;
1359
1360 if (portConfiguration & PORT_CONFIG_1000MB_SPEED) {
1361 if (portConfiguration & PORT_CONFIG_FULL_DUPLEX_ENABLED)
1362 reg |= PHY_GIG_ADV_1000F;
1363 else
1364 reg |= PHY_GIG_ADV_1000H;
1365 }
1366
1367 ql_mii_write_reg_ex(qdev, PHY_GIG_CONTROL, reg,
1368 PHYAddr[qdev->mac_index]);
1369
1370 /* Set the 10/100 & pause negotiation advertisements */
1371 ql_mii_read_reg_ex(qdev, PHY_NEG_ADVER, &reg,
1372 PHYAddr[qdev->mac_index]);
1373 reg &= ~PHY_NEG_ALL_PARAMS;
1374
1375 if (portConfiguration & PORT_CONFIG_SYM_PAUSE_ENABLED)
1376 reg |= PHY_NEG_ASY_PAUSE | PHY_NEG_SYM_PAUSE;
1377
1378 if (portConfiguration & PORT_CONFIG_FULL_DUPLEX_ENABLED) {
1379 if (portConfiguration & PORT_CONFIG_100MB_SPEED)
1380 reg |= PHY_NEG_ADV_100F;
1381
1382 if (portConfiguration & PORT_CONFIG_10MB_SPEED)
1383 reg |= PHY_NEG_ADV_10F;
1384 }
1385
1386 if (portConfiguration & PORT_CONFIG_HALF_DUPLEX_ENABLED) {
1387 if (portConfiguration & PORT_CONFIG_100MB_SPEED)
1388 reg |= PHY_NEG_ADV_100H;
1389
1390 if (portConfiguration & PORT_CONFIG_10MB_SPEED)
1391 reg |= PHY_NEG_ADV_10H;
1392 }
1393
1394 if (portConfiguration & PORT_CONFIG_1000MB_SPEED)
1395 reg |= 1;
1396
1397 ql_mii_write_reg_ex(qdev, PHY_NEG_ADVER, reg,
1398 PHYAddr[qdev->mac_index]);
1399
1400 ql_mii_read_reg_ex(qdev, CONTROL_REG, &reg, PHYAddr[qdev->mac_index]);
1401
1402 ql_mii_write_reg_ex(qdev, CONTROL_REG,
1403 reg | PHY_CTRL_RESTART_NEG | PHY_CTRL_AUTO_NEG,
1404 PHYAddr[qdev->mac_index]);
1405 }
1406
1407 static void ql_phy_init_ex(struct ql3_adapter *qdev)
1408 {
1409 ql_phy_reset_ex(qdev);
1410 PHY_Setup(qdev);
1411 ql_phy_start_neg_ex(qdev);
1412 }
1413
1414 /*
1415 * Caller holds hw_lock.
1416 */
1417 static u32 ql_get_link_state(struct ql3_adapter *qdev)
1418 {
1419 struct ql3xxx_port_registers __iomem *port_regs =
1420 qdev->mem_map_registers;
1421 u32 bitToCheck = 0;
1422 u32 temp, linkState;
1423
1424 switch (qdev->mac_index) {
1425 case 0:
1426 bitToCheck = PORT_STATUS_UP0;
1427 break;
1428 case 1:
1429 bitToCheck = PORT_STATUS_UP1;
1430 break;
1431 }
1432
1433 temp = ql_read_page0_reg(qdev, &port_regs->portStatus);
1434 if (temp & bitToCheck)
1435 linkState = LS_UP;
1436 else
1437 linkState = LS_DOWN;
1438
1439 return linkState;
1440 }
1441
1442 static int ql_port_start(struct ql3_adapter *qdev)
1443 {
1444 if (ql_sem_spinlock(qdev, QL_PHY_GIO_SEM_MASK,
1445 (QL_RESOURCE_BITS_BASE_CODE | (qdev->mac_index) *
1446 2) << 7)) {
1447 netdev_err(qdev->ndev, "Could not get hw lock for GIO\n");
1448 return -1;
1449 }
1450
1451 if (ql_is_fiber(qdev)) {
1452 ql_petbi_init(qdev);
1453 } else {
1454 /* Copper port */
1455 ql_phy_init_ex(qdev);
1456 }
1457
1458 ql_sem_unlock(qdev, QL_PHY_GIO_SEM_MASK);
1459 return 0;
1460 }
1461
1462 static int ql_finish_auto_neg(struct ql3_adapter *qdev)
1463 {
1464
1465 if (ql_sem_spinlock(qdev, QL_PHY_GIO_SEM_MASK,
1466 (QL_RESOURCE_BITS_BASE_CODE | (qdev->mac_index) *
1467 2) << 7))
1468 return -1;
1469
1470 if (!ql_auto_neg_error(qdev)) {
1471 if (test_bit(QL_LINK_MASTER, &qdev->flags)) {
1472 /* configure the MAC */
1473 netif_printk(qdev, link, KERN_DEBUG, qdev->ndev,
1474 "Configuring link\n");
1475 ql_mac_cfg_soft_reset(qdev, 1);
1476 ql_mac_cfg_gig(qdev,
1477 (ql_get_link_speed
1478 (qdev) ==
1479 SPEED_1000));
1480 ql_mac_cfg_full_dup(qdev,
1481 ql_is_link_full_dup
1482 (qdev));
1483 ql_mac_cfg_pause(qdev,
1484 ql_is_neg_pause
1485 (qdev));
1486 ql_mac_cfg_soft_reset(qdev, 0);
1487
1488 /* enable the MAC */
1489 netif_printk(qdev, link, KERN_DEBUG, qdev->ndev,
1490 "Enabling mac\n");
1491 ql_mac_enable(qdev, 1);
1492 }
1493
1494 qdev->port_link_state = LS_UP;
1495 netif_start_queue(qdev->ndev);
1496 netif_carrier_on(qdev->ndev);
1497 netif_info(qdev, link, qdev->ndev,
1498 "Link is up at %d Mbps, %s duplex\n",
1499 ql_get_link_speed(qdev),
1500 ql_is_link_full_dup(qdev) ? "full" : "half");
1501
1502 } else { /* Remote error detected */
1503
1504 if (test_bit(QL_LINK_MASTER, &qdev->flags)) {
1505 netif_printk(qdev, link, KERN_DEBUG, qdev->ndev,
1506 "Remote error detected. Calling ql_port_start()\n");
1507 /*
1508 * ql_port_start() is shared code and needs
1509 * to lock the PHY on it's own.
1510 */
1511 ql_sem_unlock(qdev, QL_PHY_GIO_SEM_MASK);
1512 if (ql_port_start(qdev)) /* Restart port */
1513 return -1;
1514 return 0;
1515 }
1516 }
1517 ql_sem_unlock(qdev, QL_PHY_GIO_SEM_MASK);
1518 return 0;
1519 }
1520
1521 static void ql_link_state_machine_work(struct work_struct *work)
1522 {
1523 struct ql3_adapter *qdev =
1524 container_of(work, struct ql3_adapter, link_state_work.work);
1525
1526 u32 curr_link_state;
1527 unsigned long hw_flags;
1528
1529 spin_lock_irqsave(&qdev->hw_lock, hw_flags);
1530
1531 curr_link_state = ql_get_link_state(qdev);
1532
1533 if (test_bit(QL_RESET_ACTIVE, &qdev->flags)) {
1534 netif_info(qdev, link, qdev->ndev,
1535 "Reset in progress, skip processing link state\n");
1536
1537 spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
1538
1539 /* Restart timer on 2 second interval. */
1540 mod_timer(&qdev->adapter_timer, jiffies + HZ * 1);
1541
1542 return;
1543 }
1544
1545 switch (qdev->port_link_state) {
1546 default:
1547 if (test_bit(QL_LINK_MASTER, &qdev->flags))
1548 ql_port_start(qdev);
1549 qdev->port_link_state = LS_DOWN;
1550 /* Fall Through */
1551
1552 case LS_DOWN:
1553 if (curr_link_state == LS_UP) {
1554 netif_info(qdev, link, qdev->ndev, "Link is up\n");
1555 if (ql_is_auto_neg_complete(qdev))
1556 ql_finish_auto_neg(qdev);
1557
1558 if (qdev->port_link_state == LS_UP)
1559 ql_link_down_detect_clear(qdev);
1560
1561 qdev->port_link_state = LS_UP;
1562 }
1563 break;
1564
1565 case LS_UP:
1566 /*
1567 * See if the link is currently down or went down and came
1568 * back up
1569 */
1570 if (curr_link_state == LS_DOWN) {
1571 netif_info(qdev, link, qdev->ndev, "Link is down\n");
1572 qdev->port_link_state = LS_DOWN;
1573 }
1574 if (ql_link_down_detect(qdev))
1575 qdev->port_link_state = LS_DOWN;
1576 break;
1577 }
1578 spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
1579
1580 /* Restart timer on 2 second interval. */
1581 mod_timer(&qdev->adapter_timer, jiffies + HZ * 1);
1582 }
1583
1584 /*
1585 * Caller must take hw_lock and QL_PHY_GIO_SEM.
1586 */
1587 static void ql_get_phy_owner(struct ql3_adapter *qdev)
1588 {
1589 if (ql_this_adapter_controls_port(qdev))
1590 set_bit(QL_LINK_MASTER, &qdev->flags);
1591 else
1592 clear_bit(QL_LINK_MASTER, &qdev->flags);
1593 }
1594
1595 /*
1596 * Caller must take hw_lock and QL_PHY_GIO_SEM.
1597 */
1598 static void ql_init_scan_mode(struct ql3_adapter *qdev)
1599 {
1600 ql_mii_enable_scan_mode(qdev);
1601
1602 if (test_bit(QL_LINK_OPTICAL, &qdev->flags)) {
1603 if (ql_this_adapter_controls_port(qdev))
1604 ql_petbi_init_ex(qdev);
1605 } else {
1606 if (ql_this_adapter_controls_port(qdev))
1607 ql_phy_init_ex(qdev);
1608 }
1609 }
1610
1611 /*
1612 * MII_Setup needs to be called before taking the PHY out of reset
1613 * so that the management interface clock speed can be set properly.
1614 * It would be better if we had a way to disable MDC until after the
1615 * PHY is out of reset, but we don't have that capability.
1616 */
1617 static int ql_mii_setup(struct ql3_adapter *qdev)
1618 {
1619 u32 reg;
1620 struct ql3xxx_port_registers __iomem *port_regs =
1621 qdev->mem_map_registers;
1622
1623 if (ql_sem_spinlock(qdev, QL_PHY_GIO_SEM_MASK,
1624 (QL_RESOURCE_BITS_BASE_CODE | (qdev->mac_index) *
1625 2) << 7))
1626 return -1;
1627
1628 if (qdev->device_id == QL3032_DEVICE_ID)
1629 ql_write_page0_reg(qdev,
1630 &port_regs->macMIIMgmtControlReg, 0x0f00000);
1631
1632 /* Divide 125MHz clock by 28 to meet PHY timing requirements */
1633 reg = MAC_MII_CONTROL_CLK_SEL_DIV28;
1634
1635 ql_write_page0_reg(qdev, &port_regs->macMIIMgmtControlReg,
1636 reg | ((MAC_MII_CONTROL_CLK_SEL_MASK) << 16));
1637
1638 ql_sem_unlock(qdev, QL_PHY_GIO_SEM_MASK);
1639 return 0;
1640 }
1641
1642 #define SUPPORTED_OPTICAL_MODES (SUPPORTED_1000baseT_Full | \
1643 SUPPORTED_FIBRE | \
1644 SUPPORTED_Autoneg)
1645 #define SUPPORTED_TP_MODES (SUPPORTED_10baseT_Half | \
1646 SUPPORTED_10baseT_Full | \
1647 SUPPORTED_100baseT_Half | \
1648 SUPPORTED_100baseT_Full | \
1649 SUPPORTED_1000baseT_Half | \
1650 SUPPORTED_1000baseT_Full | \
1651 SUPPORTED_Autoneg | \
1652 SUPPORTED_TP); \
1653
1654 static u32 ql_supported_modes(struct ql3_adapter *qdev)
1655 {
1656 if (test_bit(QL_LINK_OPTICAL, &qdev->flags))
1657 return SUPPORTED_OPTICAL_MODES;
1658
1659 return SUPPORTED_TP_MODES;
1660 }
1661
1662 static int ql_get_auto_cfg_status(struct ql3_adapter *qdev)
1663 {
1664 int status;
1665 unsigned long hw_flags;
1666 spin_lock_irqsave(&qdev->hw_lock, hw_flags);
1667 if (ql_sem_spinlock(qdev, QL_PHY_GIO_SEM_MASK,
1668 (QL_RESOURCE_BITS_BASE_CODE |
1669 (qdev->mac_index) * 2) << 7)) {
1670 spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
1671 return 0;
1672 }
1673 status = ql_is_auto_cfg(qdev);
1674 ql_sem_unlock(qdev, QL_PHY_GIO_SEM_MASK);
1675 spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
1676 return status;
1677 }
1678
1679 static u32 ql_get_speed(struct ql3_adapter *qdev)
1680 {
1681 u32 status;
1682 unsigned long hw_flags;
1683 spin_lock_irqsave(&qdev->hw_lock, hw_flags);
1684 if (ql_sem_spinlock(qdev, QL_PHY_GIO_SEM_MASK,
1685 (QL_RESOURCE_BITS_BASE_CODE |
1686 (qdev->mac_index) * 2) << 7)) {
1687 spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
1688 return 0;
1689 }
1690 status = ql_get_link_speed(qdev);
1691 ql_sem_unlock(qdev, QL_PHY_GIO_SEM_MASK);
1692 spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
1693 return status;
1694 }
1695
1696 static int ql_get_full_dup(struct ql3_adapter *qdev)
1697 {
1698 int status;
1699 unsigned long hw_flags;
1700 spin_lock_irqsave(&qdev->hw_lock, hw_flags);
1701 if (ql_sem_spinlock(qdev, QL_PHY_GIO_SEM_MASK,
1702 (QL_RESOURCE_BITS_BASE_CODE |
1703 (qdev->mac_index) * 2) << 7)) {
1704 spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
1705 return 0;
1706 }
1707 status = ql_is_link_full_dup(qdev);
1708 ql_sem_unlock(qdev, QL_PHY_GIO_SEM_MASK);
1709 spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
1710 return status;
1711 }
1712
1713 static int ql_get_settings(struct net_device *ndev, struct ethtool_cmd *ecmd)
1714 {
1715 struct ql3_adapter *qdev = netdev_priv(ndev);
1716
1717 ecmd->transceiver = XCVR_INTERNAL;
1718 ecmd->supported = ql_supported_modes(qdev);
1719
1720 if (test_bit(QL_LINK_OPTICAL, &qdev->flags)) {
1721 ecmd->port = PORT_FIBRE;
1722 } else {
1723 ecmd->port = PORT_TP;
1724 ecmd->phy_address = qdev->PHYAddr;
1725 }
1726 ecmd->advertising = ql_supported_modes(qdev);
1727 ecmd->autoneg = ql_get_auto_cfg_status(qdev);
1728 ecmd->speed = ql_get_speed(qdev);
1729 ecmd->duplex = ql_get_full_dup(qdev);
1730 return 0;
1731 }
1732
1733 static void ql_get_drvinfo(struct net_device *ndev,
1734 struct ethtool_drvinfo *drvinfo)
1735 {
1736 struct ql3_adapter *qdev = netdev_priv(ndev);
1737 strncpy(drvinfo->driver, ql3xxx_driver_name, 32);
1738 strncpy(drvinfo->version, ql3xxx_driver_version, 32);
1739 strncpy(drvinfo->fw_version, "N/A", 32);
1740 strncpy(drvinfo->bus_info, pci_name(qdev->pdev), 32);
1741 drvinfo->regdump_len = 0;
1742 drvinfo->eedump_len = 0;
1743 }
1744
1745 static u32 ql_get_msglevel(struct net_device *ndev)
1746 {
1747 struct ql3_adapter *qdev = netdev_priv(ndev);
1748 return qdev->msg_enable;
1749 }
1750
1751 static void ql_set_msglevel(struct net_device *ndev, u32 value)
1752 {
1753 struct ql3_adapter *qdev = netdev_priv(ndev);
1754 qdev->msg_enable = value;
1755 }
1756
1757 static void ql_get_pauseparam(struct net_device *ndev,
1758 struct ethtool_pauseparam *pause)
1759 {
1760 struct ql3_adapter *qdev = netdev_priv(ndev);
1761 struct ql3xxx_port_registers __iomem *port_regs =
1762 qdev->mem_map_registers;
1763
1764 u32 reg;
1765 if (qdev->mac_index == 0)
1766 reg = ql_read_page0_reg(qdev, &port_regs->mac0ConfigReg);
1767 else
1768 reg = ql_read_page0_reg(qdev, &port_regs->mac1ConfigReg);
1769
1770 pause->autoneg = ql_get_auto_cfg_status(qdev);
1771 pause->rx_pause = (reg & MAC_CONFIG_REG_RF) >> 2;
1772 pause->tx_pause = (reg & MAC_CONFIG_REG_TF) >> 1;
1773 }
1774
1775 static const struct ethtool_ops ql3xxx_ethtool_ops = {
1776 .get_settings = ql_get_settings,
1777 .get_drvinfo = ql_get_drvinfo,
1778 .get_link = ethtool_op_get_link,
1779 .get_msglevel = ql_get_msglevel,
1780 .set_msglevel = ql_set_msglevel,
1781 .get_pauseparam = ql_get_pauseparam,
1782 };
1783
1784 static int ql_populate_free_queue(struct ql3_adapter *qdev)
1785 {
1786 struct ql_rcv_buf_cb *lrg_buf_cb = qdev->lrg_buf_free_head;
1787 dma_addr_t map;
1788 int err;
1789
1790 while (lrg_buf_cb) {
1791 if (!lrg_buf_cb->skb) {
1792 lrg_buf_cb->skb =
1793 netdev_alloc_skb(qdev->ndev,
1794 qdev->lrg_buffer_len);
1795 if (unlikely(!lrg_buf_cb->skb)) {
1796 netdev_printk(KERN_DEBUG, qdev->ndev,
1797 "Failed netdev_alloc_skb()\n");
1798 break;
1799 } else {
1800 /*
1801 * We save some space to copy the ethhdr from
1802 * first buffer
1803 */
1804 skb_reserve(lrg_buf_cb->skb, QL_HEADER_SPACE);
1805 map = pci_map_single(qdev->pdev,
1806 lrg_buf_cb->skb->data,
1807 qdev->lrg_buffer_len -
1808 QL_HEADER_SPACE,
1809 PCI_DMA_FROMDEVICE);
1810
1811 err = pci_dma_mapping_error(qdev->pdev, map);
1812 if (err) {
1813 netdev_err(qdev->ndev,
1814 "PCI mapping failed with error: %d\n",
1815 err);
1816 dev_kfree_skb(lrg_buf_cb->skb);
1817 lrg_buf_cb->skb = NULL;
1818 break;
1819 }
1820
1821
1822 lrg_buf_cb->buf_phy_addr_low =
1823 cpu_to_le32(LS_64BITS(map));
1824 lrg_buf_cb->buf_phy_addr_high =
1825 cpu_to_le32(MS_64BITS(map));
1826 dma_unmap_addr_set(lrg_buf_cb, mapaddr, map);
1827 dma_unmap_len_set(lrg_buf_cb, maplen,
1828 qdev->lrg_buffer_len -
1829 QL_HEADER_SPACE);
1830 --qdev->lrg_buf_skb_check;
1831 if (!qdev->lrg_buf_skb_check)
1832 return 1;
1833 }
1834 }
1835 lrg_buf_cb = lrg_buf_cb->next;
1836 }
1837 return 0;
1838 }
1839
1840 /*
1841 * Caller holds hw_lock.
1842 */
1843 static void ql_update_small_bufq_prod_index(struct ql3_adapter *qdev)
1844 {
1845 struct ql3xxx_port_registers __iomem *port_regs =
1846 qdev->mem_map_registers;
1847
1848 if (qdev->small_buf_release_cnt >= 16) {
1849 while (qdev->small_buf_release_cnt >= 16) {
1850 qdev->small_buf_q_producer_index++;
1851
1852 if (qdev->small_buf_q_producer_index ==
1853 NUM_SBUFQ_ENTRIES)
1854 qdev->small_buf_q_producer_index = 0;
1855 qdev->small_buf_release_cnt -= 8;
1856 }
1857 wmb();
1858 writel(qdev->small_buf_q_producer_index,
1859 &port_regs->CommonRegs.rxSmallQProducerIndex);
1860 }
1861 }
1862
1863 /*
1864 * Caller holds hw_lock.
1865 */
1866 static void ql_update_lrg_bufq_prod_index(struct ql3_adapter *qdev)
1867 {
1868 struct bufq_addr_element *lrg_buf_q_ele;
1869 int i;
1870 struct ql_rcv_buf_cb *lrg_buf_cb;
1871 struct ql3xxx_port_registers __iomem *port_regs =
1872 qdev->mem_map_registers;
1873
1874 if ((qdev->lrg_buf_free_count >= 8) &&
1875 (qdev->lrg_buf_release_cnt >= 16)) {
1876
1877 if (qdev->lrg_buf_skb_check)
1878 if (!ql_populate_free_queue(qdev))
1879 return;
1880
1881 lrg_buf_q_ele = qdev->lrg_buf_next_free;
1882
1883 while ((qdev->lrg_buf_release_cnt >= 16) &&
1884 (qdev->lrg_buf_free_count >= 8)) {
1885
1886 for (i = 0; i < 8; i++) {
1887 lrg_buf_cb =
1888 ql_get_from_lrg_buf_free_list(qdev);
1889 lrg_buf_q_ele->addr_high =
1890 lrg_buf_cb->buf_phy_addr_high;
1891 lrg_buf_q_ele->addr_low =
1892 lrg_buf_cb->buf_phy_addr_low;
1893 lrg_buf_q_ele++;
1894
1895 qdev->lrg_buf_release_cnt--;
1896 }
1897
1898 qdev->lrg_buf_q_producer_index++;
1899
1900 if (qdev->lrg_buf_q_producer_index ==
1901 qdev->num_lbufq_entries)
1902 qdev->lrg_buf_q_producer_index = 0;
1903
1904 if (qdev->lrg_buf_q_producer_index ==
1905 (qdev->num_lbufq_entries - 1)) {
1906 lrg_buf_q_ele = qdev->lrg_buf_q_virt_addr;
1907 }
1908 }
1909 wmb();
1910 qdev->lrg_buf_next_free = lrg_buf_q_ele;
1911 writel(qdev->lrg_buf_q_producer_index,
1912 &port_regs->CommonRegs.rxLargeQProducerIndex);
1913 }
1914 }
1915
1916 static void ql_process_mac_tx_intr(struct ql3_adapter *qdev,
1917 struct ob_mac_iocb_rsp *mac_rsp)
1918 {
1919 struct ql_tx_buf_cb *tx_cb;
1920 int i;
1921 int retval = 0;
1922
1923 if (mac_rsp->flags & OB_MAC_IOCB_RSP_S) {
1924 netdev_warn(qdev->ndev,
1925 "Frame too short but it was padded and sent\n");
1926 }
1927
1928 tx_cb = &qdev->tx_buf[mac_rsp->transaction_id];
1929
1930 /* Check the transmit response flags for any errors */
1931 if (mac_rsp->flags & OB_MAC_IOCB_RSP_S) {
1932 netdev_err(qdev->ndev,
1933 "Frame too short to be legal, frame not sent\n");
1934
1935 qdev->ndev->stats.tx_errors++;
1936 retval = -EIO;
1937 goto frame_not_sent;
1938 }
1939
1940 if (tx_cb->seg_count == 0) {
1941 netdev_err(qdev->ndev, "tx_cb->seg_count == 0: %d\n",
1942 mac_rsp->transaction_id);
1943
1944 qdev->ndev->stats.tx_errors++;
1945 retval = -EIO;
1946 goto invalid_seg_count;
1947 }
1948
1949 pci_unmap_single(qdev->pdev,
1950 dma_unmap_addr(&tx_cb->map[0], mapaddr),
1951 dma_unmap_len(&tx_cb->map[0], maplen),
1952 PCI_DMA_TODEVICE);
1953 tx_cb->seg_count--;
1954 if (tx_cb->seg_count) {
1955 for (i = 1; i < tx_cb->seg_count; i++) {
1956 pci_unmap_page(qdev->pdev,
1957 dma_unmap_addr(&tx_cb->map[i],
1958 mapaddr),
1959 dma_unmap_len(&tx_cb->map[i], maplen),
1960 PCI_DMA_TODEVICE);
1961 }
1962 }
1963 qdev->ndev->stats.tx_packets++;
1964 qdev->ndev->stats.tx_bytes += tx_cb->skb->len;
1965
1966 frame_not_sent:
1967 dev_kfree_skb_irq(tx_cb->skb);
1968 tx_cb->skb = NULL;
1969
1970 invalid_seg_count:
1971 atomic_inc(&qdev->tx_count);
1972 }
1973
1974 static void ql_get_sbuf(struct ql3_adapter *qdev)
1975 {
1976 if (++qdev->small_buf_index == NUM_SMALL_BUFFERS)
1977 qdev->small_buf_index = 0;
1978 qdev->small_buf_release_cnt++;
1979 }
1980
1981 static struct ql_rcv_buf_cb *ql_get_lbuf(struct ql3_adapter *qdev)
1982 {
1983 struct ql_rcv_buf_cb *lrg_buf_cb = NULL;
1984 lrg_buf_cb = &qdev->lrg_buf[qdev->lrg_buf_index];
1985 qdev->lrg_buf_release_cnt++;
1986 if (++qdev->lrg_buf_index == qdev->num_large_buffers)
1987 qdev->lrg_buf_index = 0;
1988 return lrg_buf_cb;
1989 }
1990
1991 /*
1992 * The difference between 3022 and 3032 for inbound completions:
1993 * 3022 uses two buffers per completion. The first buffer contains
1994 * (some) header info, the second the remainder of the headers plus
1995 * the data. For this chip we reserve some space at the top of the
1996 * receive buffer so that the header info in buffer one can be
1997 * prepended to the buffer two. Buffer two is the sent up while
1998 * buffer one is returned to the hardware to be reused.
1999 * 3032 receives all of it's data and headers in one buffer for a
2000 * simpler process. 3032 also supports checksum verification as
2001 * can be seen in ql_process_macip_rx_intr().
2002 */
2003 static void ql_process_mac_rx_intr(struct ql3_adapter *qdev,
2004 struct ib_mac_iocb_rsp *ib_mac_rsp_ptr)
2005 {
2006 struct ql_rcv_buf_cb *lrg_buf_cb1 = NULL;
2007 struct ql_rcv_buf_cb *lrg_buf_cb2 = NULL;
2008 struct sk_buff *skb;
2009 u16 length = le16_to_cpu(ib_mac_rsp_ptr->length);
2010
2011 /*
2012 * Get the inbound address list (small buffer).
2013 */
2014 ql_get_sbuf(qdev);
2015
2016 if (qdev->device_id == QL3022_DEVICE_ID)
2017 lrg_buf_cb1 = ql_get_lbuf(qdev);
2018
2019 /* start of second buffer */
2020 lrg_buf_cb2 = ql_get_lbuf(qdev);
2021 skb = lrg_buf_cb2->skb;
2022
2023 qdev->ndev->stats.rx_packets++;
2024 qdev->ndev->stats.rx_bytes += length;
2025
2026 skb_put(skb, length);
2027 pci_unmap_single(qdev->pdev,
2028 dma_unmap_addr(lrg_buf_cb2, mapaddr),
2029 dma_unmap_len(lrg_buf_cb2, maplen),
2030 PCI_DMA_FROMDEVICE);
2031 prefetch(skb->data);
2032 skb_checksum_none_assert(skb);
2033 skb->protocol = eth_type_trans(skb, qdev->ndev);
2034
2035 netif_receive_skb(skb);
2036 lrg_buf_cb2->skb = NULL;
2037
2038 if (qdev->device_id == QL3022_DEVICE_ID)
2039 ql_release_to_lrg_buf_free_list(qdev, lrg_buf_cb1);
2040 ql_release_to_lrg_buf_free_list(qdev, lrg_buf_cb2);
2041 }
2042
2043 static void ql_process_macip_rx_intr(struct ql3_adapter *qdev,
2044 struct ib_ip_iocb_rsp *ib_ip_rsp_ptr)
2045 {
2046 struct ql_rcv_buf_cb *lrg_buf_cb1 = NULL;
2047 struct ql_rcv_buf_cb *lrg_buf_cb2 = NULL;
2048 struct sk_buff *skb1 = NULL, *skb2;
2049 struct net_device *ndev = qdev->ndev;
2050 u16 length = le16_to_cpu(ib_ip_rsp_ptr->length);
2051 u16 size = 0;
2052
2053 /*
2054 * Get the inbound address list (small buffer).
2055 */
2056
2057 ql_get_sbuf(qdev);
2058
2059 if (qdev->device_id == QL3022_DEVICE_ID) {
2060 /* start of first buffer on 3022 */
2061 lrg_buf_cb1 = ql_get_lbuf(qdev);
2062 skb1 = lrg_buf_cb1->skb;
2063 size = ETH_HLEN;
2064 if (*((u16 *) skb1->data) != 0xFFFF)
2065 size += VLAN_ETH_HLEN - ETH_HLEN;
2066 }
2067
2068 /* start of second buffer */
2069 lrg_buf_cb2 = ql_get_lbuf(qdev);
2070 skb2 = lrg_buf_cb2->skb;
2071
2072 skb_put(skb2, length); /* Just the second buffer length here. */
2073 pci_unmap_single(qdev->pdev,
2074 dma_unmap_addr(lrg_buf_cb2, mapaddr),
2075 dma_unmap_len(lrg_buf_cb2, maplen),
2076 PCI_DMA_FROMDEVICE);
2077 prefetch(skb2->data);
2078
2079 skb_checksum_none_assert(skb2);
2080 if (qdev->device_id == QL3022_DEVICE_ID) {
2081 /*
2082 * Copy the ethhdr from first buffer to second. This
2083 * is necessary for 3022 IP completions.
2084 */
2085 skb_copy_from_linear_data_offset(skb1, VLAN_ID_LEN,
2086 skb_push(skb2, size), size);
2087 } else {
2088 u16 checksum = le16_to_cpu(ib_ip_rsp_ptr->checksum);
2089 if (checksum &
2090 (IB_IP_IOCB_RSP_3032_ICE |
2091 IB_IP_IOCB_RSP_3032_CE)) {
2092 netdev_err(ndev,
2093 "%s: Bad checksum for this %s packet, checksum = %x\n",
2094 __func__,
2095 ((checksum & IB_IP_IOCB_RSP_3032_TCP) ?
2096 "TCP" : "UDP"), checksum);
2097 } else if ((checksum & IB_IP_IOCB_RSP_3032_TCP) ||
2098 (checksum & IB_IP_IOCB_RSP_3032_UDP &&
2099 !(checksum & IB_IP_IOCB_RSP_3032_NUC))) {
2100 skb2->ip_summed = CHECKSUM_UNNECESSARY;
2101 }
2102 }
2103 skb2->protocol = eth_type_trans(skb2, qdev->ndev);
2104
2105 netif_receive_skb(skb2);
2106 ndev->stats.rx_packets++;
2107 ndev->stats.rx_bytes += length;
2108 lrg_buf_cb2->skb = NULL;
2109
2110 if (qdev->device_id == QL3022_DEVICE_ID)
2111 ql_release_to_lrg_buf_free_list(qdev, lrg_buf_cb1);
2112 ql_release_to_lrg_buf_free_list(qdev, lrg_buf_cb2);
2113 }
2114
2115 static int ql_tx_rx_clean(struct ql3_adapter *qdev,
2116 int *tx_cleaned, int *rx_cleaned, int work_to_do)
2117 {
2118 struct net_rsp_iocb *net_rsp;
2119 struct net_device *ndev = qdev->ndev;
2120 int work_done = 0;
2121
2122 /* While there are entries in the completion queue. */
2123 while ((le32_to_cpu(*(qdev->prsp_producer_index)) !=
2124 qdev->rsp_consumer_index) && (work_done < work_to_do)) {
2125
2126 net_rsp = qdev->rsp_current;
2127 rmb();
2128 /*
2129 * Fix 4032 chip's undocumented "feature" where bit-8 is set
2130 * if the inbound completion is for a VLAN.
2131 */
2132 if (qdev->device_id == QL3032_DEVICE_ID)
2133 net_rsp->opcode &= 0x7f;
2134 switch (net_rsp->opcode) {
2135
2136 case OPCODE_OB_MAC_IOCB_FN0:
2137 case OPCODE_OB_MAC_IOCB_FN2:
2138 ql_process_mac_tx_intr(qdev, (struct ob_mac_iocb_rsp *)
2139 net_rsp);
2140 (*tx_cleaned)++;
2141 break;
2142
2143 case OPCODE_IB_MAC_IOCB:
2144 case OPCODE_IB_3032_MAC_IOCB:
2145 ql_process_mac_rx_intr(qdev, (struct ib_mac_iocb_rsp *)
2146 net_rsp);
2147 (*rx_cleaned)++;
2148 break;
2149
2150 case OPCODE_IB_IP_IOCB:
2151 case OPCODE_IB_3032_IP_IOCB:
2152 ql_process_macip_rx_intr(qdev, (struct ib_ip_iocb_rsp *)
2153 net_rsp);
2154 (*rx_cleaned)++;
2155 break;
2156 default: {
2157 u32 *tmp = (u32 *)net_rsp;
2158 netdev_err(ndev,
2159 "Hit default case, not handled!\n"
2160 " dropping the packet, opcode = %x\n"
2161 "0x%08lx 0x%08lx 0x%08lx 0x%08lx\n",
2162 net_rsp->opcode,
2163 (unsigned long int)tmp[0],
2164 (unsigned long int)tmp[1],
2165 (unsigned long int)tmp[2],
2166 (unsigned long int)tmp[3]);
2167 }
2168 }
2169
2170 qdev->rsp_consumer_index++;
2171
2172 if (qdev->rsp_consumer_index == NUM_RSP_Q_ENTRIES) {
2173 qdev->rsp_consumer_index = 0;
2174 qdev->rsp_current = qdev->rsp_q_virt_addr;
2175 } else {
2176 qdev->rsp_current++;
2177 }
2178
2179 work_done = *tx_cleaned + *rx_cleaned;
2180 }
2181
2182 return work_done;
2183 }
2184
2185 static int ql_poll(struct napi_struct *napi, int budget)
2186 {
2187 struct ql3_adapter *qdev = container_of(napi, struct ql3_adapter, napi);
2188 int rx_cleaned = 0, tx_cleaned = 0;
2189 unsigned long hw_flags;
2190 struct ql3xxx_port_registers __iomem *port_regs =
2191 qdev->mem_map_registers;
2192
2193 ql_tx_rx_clean(qdev, &tx_cleaned, &rx_cleaned, budget);
2194
2195 if (tx_cleaned + rx_cleaned != budget) {
2196 spin_lock_irqsave(&qdev->hw_lock, hw_flags);
2197 __napi_complete(napi);
2198 ql_update_small_bufq_prod_index(qdev);
2199 ql_update_lrg_bufq_prod_index(qdev);
2200 writel(qdev->rsp_consumer_index,
2201 &port_regs->CommonRegs.rspQConsumerIndex);
2202 spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
2203
2204 ql_enable_interrupts(qdev);
2205 }
2206 return tx_cleaned + rx_cleaned;
2207 }
2208
2209 static irqreturn_t ql3xxx_isr(int irq, void *dev_id)
2210 {
2211
2212 struct net_device *ndev = dev_id;
2213 struct ql3_adapter *qdev = netdev_priv(ndev);
2214 struct ql3xxx_port_registers __iomem *port_regs =
2215 qdev->mem_map_registers;
2216 u32 value;
2217 int handled = 1;
2218 u32 var;
2219
2220 value = ql_read_common_reg_l(qdev,
2221 &port_regs->CommonRegs.ispControlStatus);
2222
2223 if (value & (ISP_CONTROL_FE | ISP_CONTROL_RI)) {
2224 spin_lock(&qdev->adapter_lock);
2225 netif_stop_queue(qdev->ndev);
2226 netif_carrier_off(qdev->ndev);
2227 ql_disable_interrupts(qdev);
2228 qdev->port_link_state = LS_DOWN;
2229 set_bit(QL_RESET_ACTIVE, &qdev->flags) ;
2230
2231 if (value & ISP_CONTROL_FE) {
2232 /*
2233 * Chip Fatal Error.
2234 */
2235 var =
2236 ql_read_page0_reg_l(qdev,
2237 &port_regs->PortFatalErrStatus);
2238 netdev_warn(ndev,
2239 "Resetting chip. PortFatalErrStatus register = 0x%x\n",
2240 var);
2241 set_bit(QL_RESET_START, &qdev->flags) ;
2242 } else {
2243 /*
2244 * Soft Reset Requested.
2245 */
2246 set_bit(QL_RESET_PER_SCSI, &qdev->flags) ;
2247 netdev_err(ndev,
2248 "Another function issued a reset to the chip. ISR value = %x\n",
2249 value);
2250 }
2251 queue_delayed_work(qdev->workqueue, &qdev->reset_work, 0);
2252 spin_unlock(&qdev->adapter_lock);
2253 } else if (value & ISP_IMR_DISABLE_CMPL_INT) {
2254 ql_disable_interrupts(qdev);
2255 if (likely(napi_schedule_prep(&qdev->napi)))
2256 __napi_schedule(&qdev->napi);
2257 } else
2258 return IRQ_NONE;
2259
2260 return IRQ_RETVAL(handled);
2261 }
2262
2263 /*
2264 * Get the total number of segments needed for the given number of fragments.
2265 * This is necessary because outbound address lists (OAL) will be used when
2266 * more than two frags are given. Each address list has 5 addr/len pairs.
2267 * The 5th pair in each OAL is used to point to the next OAL if more frags
2268 * are coming. That is why the frags:segment count ratio is not linear.
2269 */
2270 static int ql_get_seg_count(struct ql3_adapter *qdev, unsigned short frags)
2271 {
2272 if (qdev->device_id == QL3022_DEVICE_ID)
2273 return 1;
2274
2275 if (frags <= 2)
2276 return frags + 1;
2277 else if (frags <= 6)
2278 return frags + 2;
2279 else if (frags <= 10)
2280 return frags + 3;
2281 else if (frags <= 14)
2282 return frags + 4;
2283 else if (frags <= 18)
2284 return frags + 5;
2285 return -1;
2286 }
2287
2288 static void ql_hw_csum_setup(const struct sk_buff *skb,
2289 struct ob_mac_iocb_req *mac_iocb_ptr)
2290 {
2291 const struct iphdr *ip = ip_hdr(skb);
2292
2293 mac_iocb_ptr->ip_hdr_off = skb_network_offset(skb);
2294 mac_iocb_ptr->ip_hdr_len = ip->ihl;
2295
2296 if (ip->protocol == IPPROTO_TCP) {
2297 mac_iocb_ptr->flags1 |= OB_3032MAC_IOCB_REQ_TC |
2298 OB_3032MAC_IOCB_REQ_IC;
2299 } else {
2300 mac_iocb_ptr->flags1 |= OB_3032MAC_IOCB_REQ_UC |
2301 OB_3032MAC_IOCB_REQ_IC;
2302 }
2303
2304 }
2305
2306 /*
2307 * Map the buffers for this transmit.
2308 * This will return NETDEV_TX_BUSY or NETDEV_TX_OK based on success.
2309 */
2310 static int ql_send_map(struct ql3_adapter *qdev,
2311 struct ob_mac_iocb_req *mac_iocb_ptr,
2312 struct ql_tx_buf_cb *tx_cb,
2313 struct sk_buff *skb)
2314 {
2315 struct oal *oal;
2316 struct oal_entry *oal_entry;
2317 int len = skb_headlen(skb);
2318 dma_addr_t map;
2319 int err;
2320 int completed_segs, i;
2321 int seg_cnt, seg = 0;
2322 int frag_cnt = (int)skb_shinfo(skb)->nr_frags;
2323
2324 seg_cnt = tx_cb->seg_count;
2325 /*
2326 * Map the skb buffer first.
2327 */
2328 map = pci_map_single(qdev->pdev, skb->data, len, PCI_DMA_TODEVICE);
2329
2330 err = pci_dma_mapping_error(qdev->pdev, map);
2331 if (err) {
2332 netdev_err(qdev->ndev, "PCI mapping failed with error: %d\n",
2333 err);
2334
2335 return NETDEV_TX_BUSY;
2336 }
2337
2338 oal_entry = (struct oal_entry *)&mac_iocb_ptr->buf_addr0_low;
2339 oal_entry->dma_lo = cpu_to_le32(LS_64BITS(map));
2340 oal_entry->dma_hi = cpu_to_le32(MS_64BITS(map));
2341 oal_entry->len = cpu_to_le32(len);
2342 dma_unmap_addr_set(&tx_cb->map[seg], mapaddr, map);
2343 dma_unmap_len_set(&tx_cb->map[seg], maplen, len);
2344 seg++;
2345
2346 if (seg_cnt == 1) {
2347 /* Terminate the last segment. */
2348 oal_entry->len |= cpu_to_le32(OAL_LAST_ENTRY);
2349 return NETDEV_TX_OK;
2350 }
2351 oal = tx_cb->oal;
2352 for (completed_segs = 0;
2353 completed_segs < frag_cnt;
2354 completed_segs++, seg++) {
2355 skb_frag_t *frag = &skb_shinfo(skb)->frags[completed_segs];
2356 oal_entry++;
2357 /*
2358 * Check for continuation requirements.
2359 * It's strange but necessary.
2360 * Continuation entry points to outbound address list.
2361 */
2362 if ((seg == 2 && seg_cnt > 3) ||
2363 (seg == 7 && seg_cnt > 8) ||
2364 (seg == 12 && seg_cnt > 13) ||
2365 (seg == 17 && seg_cnt > 18)) {
2366 map = pci_map_single(qdev->pdev, oal,
2367 sizeof(struct oal),
2368 PCI_DMA_TODEVICE);
2369
2370 err = pci_dma_mapping_error(qdev->pdev, map);
2371 if (err) {
2372 netdev_err(qdev->ndev,
2373 "PCI mapping outbound address list with error: %d\n",
2374 err);
2375 goto map_error;
2376 }
2377
2378 oal_entry->dma_lo = cpu_to_le32(LS_64BITS(map));
2379 oal_entry->dma_hi = cpu_to_le32(MS_64BITS(map));
2380 oal_entry->len = cpu_to_le32(sizeof(struct oal) |
2381 OAL_CONT_ENTRY);
2382 dma_unmap_addr_set(&tx_cb->map[seg], mapaddr, map);
2383 dma_unmap_len_set(&tx_cb->map[seg], maplen,
2384 sizeof(struct oal));
2385 oal_entry = (struct oal_entry *)oal;
2386 oal++;
2387 seg++;
2388 }
2389
2390 map = pci_map_page(qdev->pdev, frag->page,
2391 frag->page_offset, frag->size,
2392 PCI_DMA_TODEVICE);
2393
2394 err = pci_dma_mapping_error(qdev->pdev, map);
2395 if (err) {
2396 netdev_err(qdev->ndev,
2397 "PCI mapping frags failed with error: %d\n",
2398 err);
2399 goto map_error;
2400 }
2401
2402 oal_entry->dma_lo = cpu_to_le32(LS_64BITS(map));
2403 oal_entry->dma_hi = cpu_to_le32(MS_64BITS(map));
2404 oal_entry->len = cpu_to_le32(frag->size);
2405 dma_unmap_addr_set(&tx_cb->map[seg], mapaddr, map);
2406 dma_unmap_len_set(&tx_cb->map[seg], maplen, frag->size);
2407 }
2408 /* Terminate the last segment. */
2409 oal_entry->len |= cpu_to_le32(OAL_LAST_ENTRY);
2410 return NETDEV_TX_OK;
2411
2412 map_error:
2413 /* A PCI mapping failed and now we will need to back out
2414 * We need to traverse through the oal's and associated pages which
2415 * have been mapped and now we must unmap them to clean up properly
2416 */
2417
2418 seg = 1;
2419 oal_entry = (struct oal_entry *)&mac_iocb_ptr->buf_addr0_low;
2420 oal = tx_cb->oal;
2421 for (i = 0; i < completed_segs; i++, seg++) {
2422 oal_entry++;
2423
2424 /*
2425 * Check for continuation requirements.
2426 * It's strange but necessary.
2427 */
2428
2429 if ((seg == 2 && seg_cnt > 3) ||
2430 (seg == 7 && seg_cnt > 8) ||
2431 (seg == 12 && seg_cnt > 13) ||
2432 (seg == 17 && seg_cnt > 18)) {
2433 pci_unmap_single(qdev->pdev,
2434 dma_unmap_addr(&tx_cb->map[seg], mapaddr),
2435 dma_unmap_len(&tx_cb->map[seg], maplen),
2436 PCI_DMA_TODEVICE);
2437 oal++;
2438 seg++;
2439 }
2440
2441 pci_unmap_page(qdev->pdev,
2442 dma_unmap_addr(&tx_cb->map[seg], mapaddr),
2443 dma_unmap_len(&tx_cb->map[seg], maplen),
2444 PCI_DMA_TODEVICE);
2445 }
2446
2447 pci_unmap_single(qdev->pdev,
2448 dma_unmap_addr(&tx_cb->map[0], mapaddr),
2449 dma_unmap_addr(&tx_cb->map[0], maplen),
2450 PCI_DMA_TODEVICE);
2451
2452 return NETDEV_TX_BUSY;
2453
2454 }
2455
2456 /*
2457 * The difference between 3022 and 3032 sends:
2458 * 3022 only supports a simple single segment transmission.
2459 * 3032 supports checksumming and scatter/gather lists (fragments).
2460 * The 3032 supports sglists by using the 3 addr/len pairs (ALP)
2461 * in the IOCB plus a chain of outbound address lists (OAL) that
2462 * each contain 5 ALPs. The last ALP of the IOCB (3rd) or OAL (5th)
2463 * will used to point to an OAL when more ALP entries are required.
2464 * The IOCB is always the top of the chain followed by one or more
2465 * OALs (when necessary).
2466 */
2467 static netdev_tx_t ql3xxx_send(struct sk_buff *skb,
2468 struct net_device *ndev)
2469 {
2470 struct ql3_adapter *qdev = netdev_priv(ndev);
2471 struct ql3xxx_port_registers __iomem *port_regs =
2472 qdev->mem_map_registers;
2473 struct ql_tx_buf_cb *tx_cb;
2474 u32 tot_len = skb->len;
2475 struct ob_mac_iocb_req *mac_iocb_ptr;
2476
2477 if (unlikely(atomic_read(&qdev->tx_count) < 2))
2478 return NETDEV_TX_BUSY;
2479
2480 tx_cb = &qdev->tx_buf[qdev->req_producer_index];
2481 tx_cb->seg_count = ql_get_seg_count(qdev,
2482 skb_shinfo(skb)->nr_frags);
2483 if (tx_cb->seg_count == -1) {
2484 netdev_err(ndev, "%s: invalid segment count!\n", __func__);
2485 return NETDEV_TX_OK;
2486 }
2487
2488 mac_iocb_ptr = tx_cb->queue_entry;
2489 memset((void *)mac_iocb_ptr, 0, sizeof(struct ob_mac_iocb_req));
2490 mac_iocb_ptr->opcode = qdev->mac_ob_opcode;
2491 mac_iocb_ptr->flags = OB_MAC_IOCB_REQ_X;
2492 mac_iocb_ptr->flags |= qdev->mb_bit_mask;
2493 mac_iocb_ptr->transaction_id = qdev->req_producer_index;
2494 mac_iocb_ptr->data_len = cpu_to_le16((u16) tot_len);
2495 tx_cb->skb = skb;
2496 if (qdev->device_id == QL3032_DEVICE_ID &&
2497 skb->ip_summed == CHECKSUM_PARTIAL)
2498 ql_hw_csum_setup(skb, mac_iocb_ptr);
2499
2500 if (ql_send_map(qdev, mac_iocb_ptr, tx_cb, skb) != NETDEV_TX_OK) {
2501 netdev_err(ndev, "%s: Could not map the segments!\n", __func__);
2502 return NETDEV_TX_BUSY;
2503 }
2504
2505 wmb();
2506 qdev->req_producer_index++;
2507 if (qdev->req_producer_index == NUM_REQ_Q_ENTRIES)
2508 qdev->req_producer_index = 0;
2509 wmb();
2510 ql_write_common_reg_l(qdev,
2511 &port_regs->CommonRegs.reqQProducerIndex,
2512 qdev->req_producer_index);
2513
2514 netif_printk(qdev, tx_queued, KERN_DEBUG, ndev,
2515 "tx queued, slot %d, len %d\n",
2516 qdev->req_producer_index, skb->len);
2517
2518 atomic_dec(&qdev->tx_count);
2519 return NETDEV_TX_OK;
2520 }
2521
2522 static int ql_alloc_net_req_rsp_queues(struct ql3_adapter *qdev)
2523 {
2524 qdev->req_q_size =
2525 (u32) (NUM_REQ_Q_ENTRIES * sizeof(struct ob_mac_iocb_req));
2526
2527 qdev->req_q_virt_addr =
2528 pci_alloc_consistent(qdev->pdev,
2529 (size_t) qdev->req_q_size,
2530 &qdev->req_q_phy_addr);
2531
2532 if ((qdev->req_q_virt_addr == NULL) ||
2533 LS_64BITS(qdev->req_q_phy_addr) & (qdev->req_q_size - 1)) {
2534 netdev_err(qdev->ndev, "reqQ failed\n");
2535 return -ENOMEM;
2536 }
2537
2538 qdev->rsp_q_size = NUM_RSP_Q_ENTRIES * sizeof(struct net_rsp_iocb);
2539
2540 qdev->rsp_q_virt_addr =
2541 pci_alloc_consistent(qdev->pdev,
2542 (size_t) qdev->rsp_q_size,
2543 &qdev->rsp_q_phy_addr);
2544
2545 if ((qdev->rsp_q_virt_addr == NULL) ||
2546 LS_64BITS(qdev->rsp_q_phy_addr) & (qdev->rsp_q_size - 1)) {
2547 netdev_err(qdev->ndev, "rspQ allocation failed\n");
2548 pci_free_consistent(qdev->pdev, (size_t) qdev->req_q_size,
2549 qdev->req_q_virt_addr,
2550 qdev->req_q_phy_addr);
2551 return -ENOMEM;
2552 }
2553
2554 set_bit(QL_ALLOC_REQ_RSP_Q_DONE, &qdev->flags);
2555
2556 return 0;
2557 }
2558
2559 static void ql_free_net_req_rsp_queues(struct ql3_adapter *qdev)
2560 {
2561 if (!test_bit(QL_ALLOC_REQ_RSP_Q_DONE, &qdev->flags)) {
2562 netdev_info(qdev->ndev, "Already done\n");
2563 return;
2564 }
2565
2566 pci_free_consistent(qdev->pdev,
2567 qdev->req_q_size,
2568 qdev->req_q_virt_addr, qdev->req_q_phy_addr);
2569
2570 qdev->req_q_virt_addr = NULL;
2571
2572 pci_free_consistent(qdev->pdev,
2573 qdev->rsp_q_size,
2574 qdev->rsp_q_virt_addr, qdev->rsp_q_phy_addr);
2575
2576 qdev->rsp_q_virt_addr = NULL;
2577
2578 clear_bit(QL_ALLOC_REQ_RSP_Q_DONE, &qdev->flags);
2579 }
2580
2581 static int ql_alloc_buffer_queues(struct ql3_adapter *qdev)
2582 {
2583 /* Create Large Buffer Queue */
2584 qdev->lrg_buf_q_size =
2585 qdev->num_lbufq_entries * sizeof(struct lrg_buf_q_entry);
2586 if (qdev->lrg_buf_q_size < PAGE_SIZE)
2587 qdev->lrg_buf_q_alloc_size = PAGE_SIZE;
2588 else
2589 qdev->lrg_buf_q_alloc_size = qdev->lrg_buf_q_size * 2;
2590
2591 qdev->lrg_buf =
2592 kmalloc(qdev->num_large_buffers * sizeof(struct ql_rcv_buf_cb),
2593 GFP_KERNEL);
2594 if (qdev->lrg_buf == NULL) {
2595 netdev_err(qdev->ndev, "qdev->lrg_buf alloc failed\n");
2596 return -ENOMEM;
2597 }
2598
2599 qdev->lrg_buf_q_alloc_virt_addr =
2600 pci_alloc_consistent(qdev->pdev,
2601 qdev->lrg_buf_q_alloc_size,
2602 &qdev->lrg_buf_q_alloc_phy_addr);
2603
2604 if (qdev->lrg_buf_q_alloc_virt_addr == NULL) {
2605 netdev_err(qdev->ndev, "lBufQ failed\n");
2606 return -ENOMEM;
2607 }
2608 qdev->lrg_buf_q_virt_addr = qdev->lrg_buf_q_alloc_virt_addr;
2609 qdev->lrg_buf_q_phy_addr = qdev->lrg_buf_q_alloc_phy_addr;
2610
2611 /* Create Small Buffer Queue */
2612 qdev->small_buf_q_size =
2613 NUM_SBUFQ_ENTRIES * sizeof(struct lrg_buf_q_entry);
2614 if (qdev->small_buf_q_size < PAGE_SIZE)
2615 qdev->small_buf_q_alloc_size = PAGE_SIZE;
2616 else
2617 qdev->small_buf_q_alloc_size = qdev->small_buf_q_size * 2;
2618
2619 qdev->small_buf_q_alloc_virt_addr =
2620 pci_alloc_consistent(qdev->pdev,
2621 qdev->small_buf_q_alloc_size,
2622 &qdev->small_buf_q_alloc_phy_addr);
2623
2624 if (qdev->small_buf_q_alloc_virt_addr == NULL) {
2625 netdev_err(qdev->ndev, "Small Buffer Queue allocation failed\n");
2626 pci_free_consistent(qdev->pdev, qdev->lrg_buf_q_alloc_size,
2627 qdev->lrg_buf_q_alloc_virt_addr,
2628 qdev->lrg_buf_q_alloc_phy_addr);
2629 return -ENOMEM;
2630 }
2631
2632 qdev->small_buf_q_virt_addr = qdev->small_buf_q_alloc_virt_addr;
2633 qdev->small_buf_q_phy_addr = qdev->small_buf_q_alloc_phy_addr;
2634 set_bit(QL_ALLOC_BUFQS_DONE, &qdev->flags);
2635 return 0;
2636 }
2637
2638 static void ql_free_buffer_queues(struct ql3_adapter *qdev)
2639 {
2640 if (!test_bit(QL_ALLOC_BUFQS_DONE, &qdev->flags)) {
2641 netdev_info(qdev->ndev, "Already done\n");
2642 return;
2643 }
2644 kfree(qdev->lrg_buf);
2645 pci_free_consistent(qdev->pdev,
2646 qdev->lrg_buf_q_alloc_size,
2647 qdev->lrg_buf_q_alloc_virt_addr,
2648 qdev->lrg_buf_q_alloc_phy_addr);
2649
2650 qdev->lrg_buf_q_virt_addr = NULL;
2651
2652 pci_free_consistent(qdev->pdev,
2653 qdev->small_buf_q_alloc_size,
2654 qdev->small_buf_q_alloc_virt_addr,
2655 qdev->small_buf_q_alloc_phy_addr);
2656
2657 qdev->small_buf_q_virt_addr = NULL;
2658
2659 clear_bit(QL_ALLOC_BUFQS_DONE, &qdev->flags);
2660 }
2661
2662 static int ql_alloc_small_buffers(struct ql3_adapter *qdev)
2663 {
2664 int i;
2665 struct bufq_addr_element *small_buf_q_entry;
2666
2667 /* Currently we allocate on one of memory and use it for smallbuffers */
2668 qdev->small_buf_total_size =
2669 (QL_ADDR_ELE_PER_BUFQ_ENTRY * NUM_SBUFQ_ENTRIES *
2670 QL_SMALL_BUFFER_SIZE);
2671
2672 qdev->small_buf_virt_addr =
2673 pci_alloc_consistent(qdev->pdev,
2674 qdev->small_buf_total_size,
2675 &qdev->small_buf_phy_addr);
2676
2677 if (qdev->small_buf_virt_addr == NULL) {
2678 netdev_err(qdev->ndev, "Failed to get small buffer memory\n");
2679 return -ENOMEM;
2680 }
2681
2682 qdev->small_buf_phy_addr_low = LS_64BITS(qdev->small_buf_phy_addr);
2683 qdev->small_buf_phy_addr_high = MS_64BITS(qdev->small_buf_phy_addr);
2684
2685 small_buf_q_entry = qdev->small_buf_q_virt_addr;
2686
2687 /* Initialize the small buffer queue. */
2688 for (i = 0; i < (QL_ADDR_ELE_PER_BUFQ_ENTRY * NUM_SBUFQ_ENTRIES); i++) {
2689 small_buf_q_entry->addr_high =
2690 cpu_to_le32(qdev->small_buf_phy_addr_high);
2691 small_buf_q_entry->addr_low =
2692 cpu_to_le32(qdev->small_buf_phy_addr_low +
2693 (i * QL_SMALL_BUFFER_SIZE));
2694 small_buf_q_entry++;
2695 }
2696 qdev->small_buf_index = 0;
2697 set_bit(QL_ALLOC_SMALL_BUF_DONE, &qdev->flags);
2698 return 0;
2699 }
2700
2701 static void ql_free_small_buffers(struct ql3_adapter *qdev)
2702 {
2703 if (!test_bit(QL_ALLOC_SMALL_BUF_DONE, &qdev->flags)) {
2704 netdev_info(qdev->ndev, "Already done\n");
2705 return;
2706 }
2707 if (qdev->small_buf_virt_addr != NULL) {
2708 pci_free_consistent(qdev->pdev,
2709 qdev->small_buf_total_size,
2710 qdev->small_buf_virt_addr,
2711 qdev->small_buf_phy_addr);
2712
2713 qdev->small_buf_virt_addr = NULL;
2714 }
2715 }
2716
2717 static void ql_free_large_buffers(struct ql3_adapter *qdev)
2718 {
2719 int i = 0;
2720 struct ql_rcv_buf_cb *lrg_buf_cb;
2721
2722 for (i = 0; i < qdev->num_large_buffers; i++) {
2723 lrg_buf_cb = &qdev->lrg_buf[i];
2724 if (lrg_buf_cb->skb) {
2725 dev_kfree_skb(lrg_buf_cb->skb);
2726 pci_unmap_single(qdev->pdev,
2727 dma_unmap_addr(lrg_buf_cb, mapaddr),
2728 dma_unmap_len(lrg_buf_cb, maplen),
2729 PCI_DMA_FROMDEVICE);
2730 memset(lrg_buf_cb, 0, sizeof(struct ql_rcv_buf_cb));
2731 } else {
2732 break;
2733 }
2734 }
2735 }
2736
2737 static void ql_init_large_buffers(struct ql3_adapter *qdev)
2738 {
2739 int i;
2740 struct ql_rcv_buf_cb *lrg_buf_cb;
2741 struct bufq_addr_element *buf_addr_ele = qdev->lrg_buf_q_virt_addr;
2742
2743 for (i = 0; i < qdev->num_large_buffers; i++) {
2744 lrg_buf_cb = &qdev->lrg_buf[i];
2745 buf_addr_ele->addr_high = lrg_buf_cb->buf_phy_addr_high;
2746 buf_addr_ele->addr_low = lrg_buf_cb->buf_phy_addr_low;
2747 buf_addr_ele++;
2748 }
2749 qdev->lrg_buf_index = 0;
2750 qdev->lrg_buf_skb_check = 0;
2751 }
2752
2753 static int ql_alloc_large_buffers(struct ql3_adapter *qdev)
2754 {
2755 int i;
2756 struct ql_rcv_buf_cb *lrg_buf_cb;
2757 struct sk_buff *skb;
2758 dma_addr_t map;
2759 int err;
2760
2761 for (i = 0; i < qdev->num_large_buffers; i++) {
2762 skb = netdev_alloc_skb(qdev->ndev,
2763 qdev->lrg_buffer_len);
2764 if (unlikely(!skb)) {
2765 /* Better luck next round */
2766 netdev_err(qdev->ndev,
2767 "large buff alloc failed for %d bytes at index %d\n",
2768 qdev->lrg_buffer_len * 2, i);
2769 ql_free_large_buffers(qdev);
2770 return -ENOMEM;
2771 } else {
2772
2773 lrg_buf_cb = &qdev->lrg_buf[i];
2774 memset(lrg_buf_cb, 0, sizeof(struct ql_rcv_buf_cb));
2775 lrg_buf_cb->index = i;
2776 lrg_buf_cb->skb = skb;
2777 /*
2778 * We save some space to copy the ethhdr from first
2779 * buffer
2780 */
2781 skb_reserve(skb, QL_HEADER_SPACE);
2782 map = pci_map_single(qdev->pdev,
2783 skb->data,
2784 qdev->lrg_buffer_len -
2785 QL_HEADER_SPACE,
2786 PCI_DMA_FROMDEVICE);
2787
2788 err = pci_dma_mapping_error(qdev->pdev, map);
2789 if (err) {
2790 netdev_err(qdev->ndev,
2791 "PCI mapping failed with error: %d\n",
2792 err);
2793 ql_free_large_buffers(qdev);
2794 return -ENOMEM;
2795 }
2796
2797 dma_unmap_addr_set(lrg_buf_cb, mapaddr, map);
2798 dma_unmap_len_set(lrg_buf_cb, maplen,
2799 qdev->lrg_buffer_len -
2800 QL_HEADER_SPACE);
2801 lrg_buf_cb->buf_phy_addr_low =
2802 cpu_to_le32(LS_64BITS(map));
2803 lrg_buf_cb->buf_phy_addr_high =
2804 cpu_to_le32(MS_64BITS(map));
2805 }
2806 }
2807 return 0;
2808 }
2809
2810 static void ql_free_send_free_list(struct ql3_adapter *qdev)
2811 {
2812 struct ql_tx_buf_cb *tx_cb;
2813 int i;
2814
2815 tx_cb = &qdev->tx_buf[0];
2816 for (i = 0; i < NUM_REQ_Q_ENTRIES; i++) {
2817 kfree(tx_cb->oal);
2818 tx_cb->oal = NULL;
2819 tx_cb++;
2820 }
2821 }
2822
2823 static int ql_create_send_free_list(struct ql3_adapter *qdev)
2824 {
2825 struct ql_tx_buf_cb *tx_cb;
2826 int i;
2827 struct ob_mac_iocb_req *req_q_curr = qdev->req_q_virt_addr;
2828
2829 /* Create free list of transmit buffers */
2830 for (i = 0; i < NUM_REQ_Q_ENTRIES; i++) {
2831
2832 tx_cb = &qdev->tx_buf[i];
2833 tx_cb->skb = NULL;
2834 tx_cb->queue_entry = req_q_curr;
2835 req_q_curr++;
2836 tx_cb->oal = kmalloc(512, GFP_KERNEL);
2837 if (tx_cb->oal == NULL)
2838 return -1;
2839 }
2840 return 0;
2841 }
2842
2843 static int ql_alloc_mem_resources(struct ql3_adapter *qdev)
2844 {
2845 if (qdev->ndev->mtu == NORMAL_MTU_SIZE) {
2846 qdev->num_lbufq_entries = NUM_LBUFQ_ENTRIES;
2847 qdev->lrg_buffer_len = NORMAL_MTU_SIZE;
2848 } else if (qdev->ndev->mtu == JUMBO_MTU_SIZE) {
2849 /*
2850 * Bigger buffers, so less of them.
2851 */
2852 qdev->num_lbufq_entries = JUMBO_NUM_LBUFQ_ENTRIES;
2853 qdev->lrg_buffer_len = JUMBO_MTU_SIZE;
2854 } else {
2855 netdev_err(qdev->ndev, "Invalid mtu size: %d. Only %d and %d are accepted.\n",
2856 qdev->ndev->mtu, NORMAL_MTU_SIZE, JUMBO_MTU_SIZE);
2857 return -ENOMEM;
2858 }
2859 qdev->num_large_buffers =
2860 qdev->num_lbufq_entries * QL_ADDR_ELE_PER_BUFQ_ENTRY;
2861 qdev->lrg_buffer_len += VLAN_ETH_HLEN + VLAN_ID_LEN + QL_HEADER_SPACE;
2862 qdev->max_frame_size =
2863 (qdev->lrg_buffer_len - QL_HEADER_SPACE) + ETHERNET_CRC_SIZE;
2864
2865 /*
2866 * First allocate a page of shared memory and use it for shadow
2867 * locations of Network Request Queue Consumer Address Register and
2868 * Network Completion Queue Producer Index Register
2869 */
2870 qdev->shadow_reg_virt_addr =
2871 pci_alloc_consistent(qdev->pdev,
2872 PAGE_SIZE, &qdev->shadow_reg_phy_addr);
2873
2874 if (qdev->shadow_reg_virt_addr != NULL) {
2875 qdev->preq_consumer_index = (u16 *) qdev->shadow_reg_virt_addr;
2876 qdev->req_consumer_index_phy_addr_high =
2877 MS_64BITS(qdev->shadow_reg_phy_addr);
2878 qdev->req_consumer_index_phy_addr_low =
2879 LS_64BITS(qdev->shadow_reg_phy_addr);
2880
2881 qdev->prsp_producer_index =
2882 (__le32 *) (((u8 *) qdev->preq_consumer_index) + 8);
2883 qdev->rsp_producer_index_phy_addr_high =
2884 qdev->req_consumer_index_phy_addr_high;
2885 qdev->rsp_producer_index_phy_addr_low =
2886 qdev->req_consumer_index_phy_addr_low + 8;
2887 } else {
2888 netdev_err(qdev->ndev, "shadowReg Alloc failed\n");
2889 return -ENOMEM;
2890 }
2891
2892 if (ql_alloc_net_req_rsp_queues(qdev) != 0) {
2893 netdev_err(qdev->ndev, "ql_alloc_net_req_rsp_queues failed\n");
2894 goto err_req_rsp;
2895 }
2896
2897 if (ql_alloc_buffer_queues(qdev) != 0) {
2898 netdev_err(qdev->ndev, "ql_alloc_buffer_queues failed\n");
2899 goto err_buffer_queues;
2900 }
2901
2902 if (ql_alloc_small_buffers(qdev) != 0) {
2903 netdev_err(qdev->ndev, "ql_alloc_small_buffers failed\n");
2904 goto err_small_buffers;
2905 }
2906
2907 if (ql_alloc_large_buffers(qdev) != 0) {
2908 netdev_err(qdev->ndev, "ql_alloc_large_buffers failed\n");
2909 goto err_small_buffers;
2910 }
2911
2912 /* Initialize the large buffer queue. */
2913 ql_init_large_buffers(qdev);
2914 if (ql_create_send_free_list(qdev))
2915 goto err_free_list;
2916
2917 qdev->rsp_current = qdev->rsp_q_virt_addr;
2918
2919 return 0;
2920 err_free_list:
2921 ql_free_send_free_list(qdev);
2922 err_small_buffers:
2923 ql_free_buffer_queues(qdev);
2924 err_buffer_queues:
2925 ql_free_net_req_rsp_queues(qdev);
2926 err_req_rsp:
2927 pci_free_consistent(qdev->pdev,
2928 PAGE_SIZE,
2929 qdev->shadow_reg_virt_addr,
2930 qdev->shadow_reg_phy_addr);
2931
2932 return -ENOMEM;
2933 }
2934
2935 static void ql_free_mem_resources(struct ql3_adapter *qdev)
2936 {
2937 ql_free_send_free_list(qdev);
2938 ql_free_large_buffers(qdev);
2939 ql_free_small_buffers(qdev);
2940 ql_free_buffer_queues(qdev);
2941 ql_free_net_req_rsp_queues(qdev);
2942 if (qdev->shadow_reg_virt_addr != NULL) {
2943 pci_free_consistent(qdev->pdev,
2944 PAGE_SIZE,
2945 qdev->shadow_reg_virt_addr,
2946 qdev->shadow_reg_phy_addr);
2947 qdev->shadow_reg_virt_addr = NULL;
2948 }
2949 }
2950
2951 static int ql_init_misc_registers(struct ql3_adapter *qdev)
2952 {
2953 struct ql3xxx_local_ram_registers __iomem *local_ram =
2954 (void __iomem *)qdev->mem_map_registers;
2955
2956 if (ql_sem_spinlock(qdev, QL_DDR_RAM_SEM_MASK,
2957 (QL_RESOURCE_BITS_BASE_CODE | (qdev->mac_index) *
2958 2) << 4))
2959 return -1;
2960
2961 ql_write_page2_reg(qdev,
2962 &local_ram->bufletSize, qdev->nvram_data.bufletSize);
2963
2964 ql_write_page2_reg(qdev,
2965 &local_ram->maxBufletCount,
2966 qdev->nvram_data.bufletCount);
2967
2968 ql_write_page2_reg(qdev,
2969 &local_ram->freeBufletThresholdLow,
2970 (qdev->nvram_data.tcpWindowThreshold25 << 16) |
2971 (qdev->nvram_data.tcpWindowThreshold0));
2972
2973 ql_write_page2_reg(qdev,
2974 &local_ram->freeBufletThresholdHigh,
2975 qdev->nvram_data.tcpWindowThreshold50);
2976
2977 ql_write_page2_reg(qdev,
2978 &local_ram->ipHashTableBase,
2979 (qdev->nvram_data.ipHashTableBaseHi << 16) |
2980 qdev->nvram_data.ipHashTableBaseLo);
2981 ql_write_page2_reg(qdev,
2982 &local_ram->ipHashTableCount,
2983 qdev->nvram_data.ipHashTableSize);
2984 ql_write_page2_reg(qdev,
2985 &local_ram->tcpHashTableBase,
2986 (qdev->nvram_data.tcpHashTableBaseHi << 16) |
2987 qdev->nvram_data.tcpHashTableBaseLo);
2988 ql_write_page2_reg(qdev,
2989 &local_ram->tcpHashTableCount,
2990 qdev->nvram_data.tcpHashTableSize);
2991 ql_write_page2_reg(qdev,
2992 &local_ram->ncbBase,
2993 (qdev->nvram_data.ncbTableBaseHi << 16) |
2994 qdev->nvram_data.ncbTableBaseLo);
2995 ql_write_page2_reg(qdev,
2996 &local_ram->maxNcbCount,
2997 qdev->nvram_data.ncbTableSize);
2998 ql_write_page2_reg(qdev,
2999 &local_ram->drbBase,
3000 (qdev->nvram_data.drbTableBaseHi << 16) |
3001 qdev->nvram_data.drbTableBaseLo);
3002 ql_write_page2_reg(qdev,
3003 &local_ram->maxDrbCount,
3004 qdev->nvram_data.drbTableSize);
3005 ql_sem_unlock(qdev, QL_DDR_RAM_SEM_MASK);
3006 return 0;
3007 }
3008
3009 static int ql_adapter_initialize(struct ql3_adapter *qdev)
3010 {
3011 u32 value;
3012 struct ql3xxx_port_registers __iomem *port_regs =
3013 qdev->mem_map_registers;
3014 u32 *spir = &port_regs->CommonRegs.serialPortInterfaceReg;
3015 struct ql3xxx_host_memory_registers __iomem *hmem_regs =
3016 (void __iomem *)port_regs;
3017 u32 delay = 10;
3018 int status = 0;
3019 unsigned long hw_flags = 0;
3020
3021 if (ql_mii_setup(qdev))
3022 return -1;
3023
3024 /* Bring out PHY out of reset */
3025 ql_write_common_reg(qdev, spir,
3026 (ISP_SERIAL_PORT_IF_WE |
3027 (ISP_SERIAL_PORT_IF_WE << 16)));
3028 /* Give the PHY time to come out of reset. */
3029 mdelay(100);
3030 qdev->port_link_state = LS_DOWN;
3031 netif_carrier_off(qdev->ndev);
3032
3033 /* V2 chip fix for ARS-39168. */
3034 ql_write_common_reg(qdev, spir,
3035 (ISP_SERIAL_PORT_IF_SDE |
3036 (ISP_SERIAL_PORT_IF_SDE << 16)));
3037
3038 /* Request Queue Registers */
3039 *((u32 *)(qdev->preq_consumer_index)) = 0;
3040 atomic_set(&qdev->tx_count, NUM_REQ_Q_ENTRIES);
3041 qdev->req_producer_index = 0;
3042
3043 ql_write_page1_reg(qdev,
3044 &hmem_regs->reqConsumerIndexAddrHigh,
3045 qdev->req_consumer_index_phy_addr_high);
3046 ql_write_page1_reg(qdev,
3047 &hmem_regs->reqConsumerIndexAddrLow,
3048 qdev->req_consumer_index_phy_addr_low);
3049
3050 ql_write_page1_reg(qdev,
3051 &hmem_regs->reqBaseAddrHigh,
3052 MS_64BITS(qdev->req_q_phy_addr));
3053 ql_write_page1_reg(qdev,
3054 &hmem_regs->reqBaseAddrLow,
3055 LS_64BITS(qdev->req_q_phy_addr));
3056 ql_write_page1_reg(qdev, &hmem_regs->reqLength, NUM_REQ_Q_ENTRIES);
3057
3058 /* Response Queue Registers */
3059 *((__le16 *) (qdev->prsp_producer_index)) = 0;
3060 qdev->rsp_consumer_index = 0;
3061 qdev->rsp_current = qdev->rsp_q_virt_addr;
3062
3063 ql_write_page1_reg(qdev,
3064 &hmem_regs->rspProducerIndexAddrHigh,
3065 qdev->rsp_producer_index_phy_addr_high);
3066
3067 ql_write_page1_reg(qdev,
3068 &hmem_regs->rspProducerIndexAddrLow,
3069 qdev->rsp_producer_index_phy_addr_low);
3070
3071 ql_write_page1_reg(qdev,
3072 &hmem_regs->rspBaseAddrHigh,
3073 MS_64BITS(qdev->rsp_q_phy_addr));
3074
3075 ql_write_page1_reg(qdev,
3076 &hmem_regs->rspBaseAddrLow,
3077 LS_64BITS(qdev->rsp_q_phy_addr));
3078
3079 ql_write_page1_reg(qdev, &hmem_regs->rspLength, NUM_RSP_Q_ENTRIES);
3080
3081 /* Large Buffer Queue */
3082 ql_write_page1_reg(qdev,
3083 &hmem_regs->rxLargeQBaseAddrHigh,
3084 MS_64BITS(qdev->lrg_buf_q_phy_addr));
3085
3086 ql_write_page1_reg(qdev,
3087 &hmem_regs->rxLargeQBaseAddrLow,
3088 LS_64BITS(qdev->lrg_buf_q_phy_addr));
3089
3090 ql_write_page1_reg(qdev,
3091 &hmem_regs->rxLargeQLength,
3092 qdev->num_lbufq_entries);
3093
3094 ql_write_page1_reg(qdev,
3095 &hmem_regs->rxLargeBufferLength,
3096 qdev->lrg_buffer_len);
3097
3098 /* Small Buffer Queue */
3099 ql_write_page1_reg(qdev,
3100 &hmem_regs->rxSmallQBaseAddrHigh,
3101 MS_64BITS(qdev->small_buf_q_phy_addr));
3102
3103 ql_write_page1_reg(qdev,
3104 &hmem_regs->rxSmallQBaseAddrLow,
3105 LS_64BITS(qdev->small_buf_q_phy_addr));
3106
3107 ql_write_page1_reg(qdev, &hmem_regs->rxSmallQLength, NUM_SBUFQ_ENTRIES);
3108 ql_write_page1_reg(qdev,
3109 &hmem_regs->rxSmallBufferLength,
3110 QL_SMALL_BUFFER_SIZE);
3111
3112 qdev->small_buf_q_producer_index = NUM_SBUFQ_ENTRIES - 1;
3113 qdev->small_buf_release_cnt = 8;
3114 qdev->lrg_buf_q_producer_index = qdev->num_lbufq_entries - 1;
3115 qdev->lrg_buf_release_cnt = 8;
3116 qdev->lrg_buf_next_free =
3117 (struct bufq_addr_element *)qdev->lrg_buf_q_virt_addr;
3118 qdev->small_buf_index = 0;
3119 qdev->lrg_buf_index = 0;
3120 qdev->lrg_buf_free_count = 0;
3121 qdev->lrg_buf_free_head = NULL;
3122 qdev->lrg_buf_free_tail = NULL;
3123
3124 ql_write_common_reg(qdev,
3125 &port_regs->CommonRegs.
3126 rxSmallQProducerIndex,
3127 qdev->small_buf_q_producer_index);
3128 ql_write_common_reg(qdev,
3129 &port_regs->CommonRegs.
3130 rxLargeQProducerIndex,
3131 qdev->lrg_buf_q_producer_index);
3132
3133 /*
3134 * Find out if the chip has already been initialized. If it has, then
3135 * we skip some of the initialization.
3136 */
3137 clear_bit(QL_LINK_MASTER, &qdev->flags);
3138 value = ql_read_page0_reg(qdev, &port_regs->portStatus);
3139 if ((value & PORT_STATUS_IC) == 0) {
3140
3141 /* Chip has not been configured yet, so let it rip. */
3142 if (ql_init_misc_registers(qdev)) {
3143 status = -1;
3144 goto out;
3145 }
3146
3147 value = qdev->nvram_data.tcpMaxWindowSize;
3148 ql_write_page0_reg(qdev, &port_regs->tcpMaxWindow, value);
3149
3150 value = (0xFFFF << 16) | qdev->nvram_data.extHwConfig;
3151
3152 if (ql_sem_spinlock(qdev, QL_FLASH_SEM_MASK,
3153 (QL_RESOURCE_BITS_BASE_CODE | (qdev->mac_index)
3154 * 2) << 13)) {
3155 status = -1;
3156 goto out;
3157 }
3158 ql_write_page0_reg(qdev, &port_regs->ExternalHWConfig, value);
3159 ql_write_page0_reg(qdev, &port_regs->InternalChipConfig,
3160 (((INTERNAL_CHIP_SD | INTERNAL_CHIP_WE) <<
3161 16) | (INTERNAL_CHIP_SD |
3162 INTERNAL_CHIP_WE)));
3163 ql_sem_unlock(qdev, QL_FLASH_SEM_MASK);
3164 }
3165
3166 if (qdev->mac_index)
3167 ql_write_page0_reg(qdev,
3168 &port_regs->mac1MaxFrameLengthReg,
3169 qdev->max_frame_size);
3170 else
3171 ql_write_page0_reg(qdev,
3172 &port_regs->mac0MaxFrameLengthReg,
3173 qdev->max_frame_size);
3174
3175 if (ql_sem_spinlock(qdev, QL_PHY_GIO_SEM_MASK,
3176 (QL_RESOURCE_BITS_BASE_CODE | (qdev->mac_index) *
3177 2) << 7)) {
3178 status = -1;
3179 goto out;
3180 }
3181
3182 PHY_Setup(qdev);
3183 ql_init_scan_mode(qdev);
3184 ql_get_phy_owner(qdev);
3185
3186 /* Load the MAC Configuration */
3187
3188 /* Program lower 32 bits of the MAC address */
3189 ql_write_page0_reg(qdev, &port_regs->macAddrIndirectPtrReg,
3190 (MAC_ADDR_INDIRECT_PTR_REG_RP_MASK << 16));
3191 ql_write_page0_reg(qdev, &port_regs->macAddrDataReg,
3192 ((qdev->ndev->dev_addr[2] << 24)
3193 | (qdev->ndev->dev_addr[3] << 16)
3194 | (qdev->ndev->dev_addr[4] << 8)
3195 | qdev->ndev->dev_addr[5]));
3196
3197 /* Program top 16 bits of the MAC address */
3198 ql_write_page0_reg(qdev, &port_regs->macAddrIndirectPtrReg,
3199 ((MAC_ADDR_INDIRECT_PTR_REG_RP_MASK << 16) | 1));
3200 ql_write_page0_reg(qdev, &port_regs->macAddrDataReg,
3201 ((qdev->ndev->dev_addr[0] << 8)
3202 | qdev->ndev->dev_addr[1]));
3203
3204 /* Enable Primary MAC */
3205 ql_write_page0_reg(qdev, &port_regs->macAddrIndirectPtrReg,
3206 ((MAC_ADDR_INDIRECT_PTR_REG_PE << 16) |
3207 MAC_ADDR_INDIRECT_PTR_REG_PE));
3208
3209 /* Clear Primary and Secondary IP addresses */
3210 ql_write_page0_reg(qdev, &port_regs->ipAddrIndexReg,
3211 ((IP_ADDR_INDEX_REG_MASK << 16) |
3212 (qdev->mac_index << 2)));
3213 ql_write_page0_reg(qdev, &port_regs->ipAddrDataReg, 0);
3214
3215 ql_write_page0_reg(qdev, &port_regs->ipAddrIndexReg,
3216 ((IP_ADDR_INDEX_REG_MASK << 16) |
3217 ((qdev->mac_index << 2) + 1)));
3218 ql_write_page0_reg(qdev, &port_regs->ipAddrDataReg, 0);
3219
3220 ql_sem_unlock(qdev, QL_PHY_GIO_SEM_MASK);
3221
3222 /* Indicate Configuration Complete */
3223 ql_write_page0_reg(qdev,
3224 &port_regs->portControl,
3225 ((PORT_CONTROL_CC << 16) | PORT_CONTROL_CC));
3226
3227 do {
3228 value = ql_read_page0_reg(qdev, &port_regs->portStatus);
3229 if (value & PORT_STATUS_IC)
3230 break;
3231 spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
3232 msleep(500);
3233 spin_lock_irqsave(&qdev->hw_lock, hw_flags);
3234 } while (--delay);
3235
3236 if (delay == 0) {
3237 netdev_err(qdev->ndev, "Hw Initialization timeout\n");
3238 status = -1;
3239 goto out;
3240 }
3241
3242 /* Enable Ethernet Function */
3243 if (qdev->device_id == QL3032_DEVICE_ID) {
3244 value =
3245 (QL3032_PORT_CONTROL_EF | QL3032_PORT_CONTROL_KIE |
3246 QL3032_PORT_CONTROL_EIv6 | QL3032_PORT_CONTROL_EIv4 |
3247 QL3032_PORT_CONTROL_ET);
3248 ql_write_page0_reg(qdev, &port_regs->functionControl,
3249 ((value << 16) | value));
3250 } else {
3251 value =
3252 (PORT_CONTROL_EF | PORT_CONTROL_ET | PORT_CONTROL_EI |
3253 PORT_CONTROL_HH);
3254 ql_write_page0_reg(qdev, &port_regs->portControl,
3255 ((value << 16) | value));
3256 }
3257
3258
3259 out:
3260 return status;
3261 }
3262
3263 /*
3264 * Caller holds hw_lock.
3265 */
3266 static int ql_adapter_reset(struct ql3_adapter *qdev)
3267 {
3268 struct ql3xxx_port_registers __iomem *port_regs =
3269 qdev->mem_map_registers;
3270 int status = 0;
3271 u16 value;
3272 int max_wait_time;
3273
3274 set_bit(QL_RESET_ACTIVE, &qdev->flags);
3275 clear_bit(QL_RESET_DONE, &qdev->flags);
3276
3277 /*
3278 * Issue soft reset to chip.
3279 */
3280 netdev_printk(KERN_DEBUG, qdev->ndev, "Issue soft reset to chip\n");
3281 ql_write_common_reg(qdev,
3282 &port_regs->CommonRegs.ispControlStatus,
3283 ((ISP_CONTROL_SR << 16) | ISP_CONTROL_SR));
3284
3285 /* Wait 3 seconds for reset to complete. */
3286 netdev_printk(KERN_DEBUG, qdev->ndev,
3287 "Wait 10 milliseconds for reset to complete\n");
3288
3289 /* Wait until the firmware tells us the Soft Reset is done */
3290 max_wait_time = 5;
3291 do {
3292 value =
3293 ql_read_common_reg(qdev,
3294 &port_regs->CommonRegs.ispControlStatus);
3295 if ((value & ISP_CONTROL_SR) == 0)
3296 break;
3297
3298 ssleep(1);
3299 } while ((--max_wait_time));
3300
3301 /*
3302 * Also, make sure that the Network Reset Interrupt bit has been
3303 * cleared after the soft reset has taken place.
3304 */
3305 value =
3306 ql_read_common_reg(qdev, &port_regs->CommonRegs.ispControlStatus);
3307 if (value & ISP_CONTROL_RI) {
3308 netdev_printk(KERN_DEBUG, qdev->ndev,
3309 "clearing RI after reset\n");
3310 ql_write_common_reg(qdev,
3311 &port_regs->CommonRegs.
3312 ispControlStatus,
3313 ((ISP_CONTROL_RI << 16) | ISP_CONTROL_RI));
3314 }
3315
3316 if (max_wait_time == 0) {
3317 /* Issue Force Soft Reset */
3318 ql_write_common_reg(qdev,
3319 &port_regs->CommonRegs.
3320 ispControlStatus,
3321 ((ISP_CONTROL_FSR << 16) |
3322 ISP_CONTROL_FSR));
3323 /*
3324 * Wait until the firmware tells us the Force Soft Reset is
3325 * done
3326 */
3327 max_wait_time = 5;
3328 do {
3329 value = ql_read_common_reg(qdev,
3330 &port_regs->CommonRegs.
3331 ispControlStatus);
3332 if ((value & ISP_CONTROL_FSR) == 0)
3333 break;
3334 ssleep(1);
3335 } while ((--max_wait_time));
3336 }
3337 if (max_wait_time == 0)
3338 status = 1;
3339
3340 clear_bit(QL_RESET_ACTIVE, &qdev->flags);
3341 set_bit(QL_RESET_DONE, &qdev->flags);
3342 return status;
3343 }
3344
3345 static void ql_set_mac_info(struct ql3_adapter *qdev)
3346 {
3347 struct ql3xxx_port_registers __iomem *port_regs =
3348 qdev->mem_map_registers;
3349 u32 value, port_status;
3350 u8 func_number;
3351
3352 /* Get the function number */
3353 value =
3354 ql_read_common_reg_l(qdev, &port_regs->CommonRegs.ispControlStatus);
3355 func_number = (u8) ((value >> 4) & OPCODE_FUNC_ID_MASK);
3356 port_status = ql_read_page0_reg(qdev, &port_regs->portStatus);
3357 switch (value & ISP_CONTROL_FN_MASK) {
3358 case ISP_CONTROL_FN0_NET:
3359 qdev->mac_index = 0;
3360 qdev->mac_ob_opcode = OUTBOUND_MAC_IOCB | func_number;
3361 qdev->mb_bit_mask = FN0_MA_BITS_MASK;
3362 qdev->PHYAddr = PORT0_PHY_ADDRESS;
3363 if (port_status & PORT_STATUS_SM0)
3364 set_bit(QL_LINK_OPTICAL, &qdev->flags);
3365 else
3366 clear_bit(QL_LINK_OPTICAL, &qdev->flags);
3367 break;
3368
3369 case ISP_CONTROL_FN1_NET:
3370 qdev->mac_index = 1;
3371 qdev->mac_ob_opcode = OUTBOUND_MAC_IOCB | func_number;
3372 qdev->mb_bit_mask = FN1_MA_BITS_MASK;
3373 qdev->PHYAddr = PORT1_PHY_ADDRESS;
3374 if (port_status & PORT_STATUS_SM1)
3375 set_bit(QL_LINK_OPTICAL, &qdev->flags);
3376 else
3377 clear_bit(QL_LINK_OPTICAL, &qdev->flags);
3378 break;
3379
3380 case ISP_CONTROL_FN0_SCSI:
3381 case ISP_CONTROL_FN1_SCSI:
3382 default:
3383 netdev_printk(KERN_DEBUG, qdev->ndev,
3384 "Invalid function number, ispControlStatus = 0x%x\n",
3385 value);
3386 break;
3387 }
3388 qdev->numPorts = qdev->nvram_data.version_and_numPorts >> 8;
3389 }
3390
3391 static void ql_display_dev_info(struct net_device *ndev)
3392 {
3393 struct ql3_adapter *qdev = netdev_priv(ndev);
3394 struct pci_dev *pdev = qdev->pdev;
3395
3396 netdev_info(ndev,
3397 "%s Adapter %d RevisionID %d found %s on PCI slot %d\n",
3398 DRV_NAME, qdev->index, qdev->chip_rev_id,
3399 qdev->device_id == QL3032_DEVICE_ID ? "QLA3032" : "QLA3022",
3400 qdev->pci_slot);
3401 netdev_info(ndev, "%s Interface\n",
3402 test_bit(QL_LINK_OPTICAL, &qdev->flags) ? "OPTICAL" : "COPPER");
3403
3404 /*
3405 * Print PCI bus width/type.
3406 */
3407 netdev_info(ndev, "Bus interface is %s %s\n",
3408 ((qdev->pci_width == 64) ? "64-bit" : "32-bit"),
3409 ((qdev->pci_x) ? "PCI-X" : "PCI"));
3410
3411 netdev_info(ndev, "mem IO base address adjusted = 0x%p\n",
3412 qdev->mem_map_registers);
3413 netdev_info(ndev, "Interrupt number = %d\n", pdev->irq);
3414
3415 netif_info(qdev, probe, ndev, "MAC address %pM\n", ndev->dev_addr);
3416 }
3417
3418 static int ql_adapter_down(struct ql3_adapter *qdev, int do_reset)
3419 {
3420 struct net_device *ndev = qdev->ndev;
3421 int retval = 0;
3422
3423 netif_stop_queue(ndev);
3424 netif_carrier_off(ndev);
3425
3426 clear_bit(QL_ADAPTER_UP, &qdev->flags);
3427 clear_bit(QL_LINK_MASTER, &qdev->flags);
3428
3429 ql_disable_interrupts(qdev);
3430
3431 free_irq(qdev->pdev->irq, ndev);
3432
3433 if (qdev->msi && test_bit(QL_MSI_ENABLED, &qdev->flags)) {
3434 netdev_info(qdev->ndev, "calling pci_disable_msi()\n");
3435 clear_bit(QL_MSI_ENABLED, &qdev->flags);
3436 pci_disable_msi(qdev->pdev);
3437 }
3438
3439 del_timer_sync(&qdev->adapter_timer);
3440
3441 napi_disable(&qdev->napi);
3442
3443 if (do_reset) {
3444 int soft_reset;
3445 unsigned long hw_flags;
3446
3447 spin_lock_irqsave(&qdev->hw_lock, hw_flags);
3448 if (ql_wait_for_drvr_lock(qdev)) {
3449 soft_reset = ql_adapter_reset(qdev);
3450 if (soft_reset) {
3451 netdev_err(ndev, "ql_adapter_reset(%d) FAILED!\n",
3452 qdev->index);
3453 }
3454 netdev_err(ndev,
3455 "Releasing driver lock via chip reset\n");
3456 } else {
3457 netdev_err(ndev,
3458 "Could not acquire driver lock to do reset!\n");
3459 retval = -1;
3460 }
3461 spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
3462 }
3463 ql_free_mem_resources(qdev);
3464 return retval;
3465 }
3466
3467 static int ql_adapter_up(struct ql3_adapter *qdev)
3468 {
3469 struct net_device *ndev = qdev->ndev;
3470 int err;
3471 unsigned long irq_flags = IRQF_SAMPLE_RANDOM | IRQF_SHARED;
3472 unsigned long hw_flags;
3473
3474 if (ql_alloc_mem_resources(qdev)) {
3475 netdev_err(ndev, "Unable to allocate buffers\n");
3476 return -ENOMEM;
3477 }
3478
3479 if (qdev->msi) {
3480 if (pci_enable_msi(qdev->pdev)) {
3481 netdev_err(ndev,
3482 "User requested MSI, but MSI failed to initialize. Continuing without MSI.\n");
3483 qdev->msi = 0;
3484 } else {
3485 netdev_info(ndev, "MSI Enabled...\n");
3486 set_bit(QL_MSI_ENABLED, &qdev->flags);
3487 irq_flags &= ~IRQF_SHARED;
3488 }
3489 }
3490
3491 err = request_irq(qdev->pdev->irq, ql3xxx_isr,
3492 irq_flags, ndev->name, ndev);
3493 if (err) {
3494 netdev_err(ndev,
3495 "Failed to reserve interrupt %d - already in use\n",
3496 qdev->pdev->irq);
3497 goto err_irq;
3498 }
3499
3500 spin_lock_irqsave(&qdev->hw_lock, hw_flags);
3501
3502 err = ql_wait_for_drvr_lock(qdev);
3503 if (err) {
3504 err = ql_adapter_initialize(qdev);
3505 if (err) {
3506 netdev_err(ndev, "Unable to initialize adapter\n");
3507 goto err_init;
3508 }
3509 netdev_err(ndev, "Releasing driver lock\n");
3510 ql_sem_unlock(qdev, QL_DRVR_SEM_MASK);
3511 } else {
3512 netdev_err(ndev, "Could not acquire driver lock\n");
3513 goto err_lock;
3514 }
3515
3516 spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
3517
3518 set_bit(QL_ADAPTER_UP, &qdev->flags);
3519
3520 mod_timer(&qdev->adapter_timer, jiffies + HZ * 1);
3521
3522 napi_enable(&qdev->napi);
3523 ql_enable_interrupts(qdev);
3524 return 0;
3525
3526 err_init:
3527 ql_sem_unlock(qdev, QL_DRVR_SEM_MASK);
3528 err_lock:
3529 spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
3530 free_irq(qdev->pdev->irq, ndev);
3531 err_irq:
3532 if (qdev->msi && test_bit(QL_MSI_ENABLED, &qdev->flags)) {
3533 netdev_info(ndev, "calling pci_disable_msi()\n");
3534 clear_bit(QL_MSI_ENABLED, &qdev->flags);
3535 pci_disable_msi(qdev->pdev);
3536 }
3537 return err;
3538 }
3539
3540 static int ql_cycle_adapter(struct ql3_adapter *qdev, int reset)
3541 {
3542 if (ql_adapter_down(qdev, reset) || ql_adapter_up(qdev)) {
3543 netdev_err(qdev->ndev,
3544 "Driver up/down cycle failed, closing device\n");
3545 rtnl_lock();
3546 dev_close(qdev->ndev);
3547 rtnl_unlock();
3548 return -1;
3549 }
3550 return 0;
3551 }
3552
3553 static int ql3xxx_close(struct net_device *ndev)
3554 {
3555 struct ql3_adapter *qdev = netdev_priv(ndev);
3556
3557 /*
3558 * Wait for device to recover from a reset.
3559 * (Rarely happens, but possible.)
3560 */
3561 while (!test_bit(QL_ADAPTER_UP, &qdev->flags))
3562 msleep(50);
3563
3564 ql_adapter_down(qdev, QL_DO_RESET);
3565 return 0;
3566 }
3567
3568 static int ql3xxx_open(struct net_device *ndev)
3569 {
3570 struct ql3_adapter *qdev = netdev_priv(ndev);
3571 return ql_adapter_up(qdev);
3572 }
3573
3574 static int ql3xxx_set_mac_address(struct net_device *ndev, void *p)
3575 {
3576 struct ql3_adapter *qdev = netdev_priv(ndev);
3577 struct ql3xxx_port_registers __iomem *port_regs =
3578 qdev->mem_map_registers;
3579 struct sockaddr *addr = p;
3580 unsigned long hw_flags;
3581
3582 if (netif_running(ndev))
3583 return -EBUSY;
3584
3585 if (!is_valid_ether_addr(addr->sa_data))
3586 return -EADDRNOTAVAIL;
3587
3588 memcpy(ndev->dev_addr, addr->sa_data, ndev->addr_len);
3589
3590 spin_lock_irqsave(&qdev->hw_lock, hw_flags);
3591 /* Program lower 32 bits of the MAC address */
3592 ql_write_page0_reg(qdev, &port_regs->macAddrIndirectPtrReg,
3593 (MAC_ADDR_INDIRECT_PTR_REG_RP_MASK << 16));
3594 ql_write_page0_reg(qdev, &port_regs->macAddrDataReg,
3595 ((ndev->dev_addr[2] << 24) | (ndev->
3596 dev_addr[3] << 16) |
3597 (ndev->dev_addr[4] << 8) | ndev->dev_addr[5]));
3598
3599 /* Program top 16 bits of the MAC address */
3600 ql_write_page0_reg(qdev, &port_regs->macAddrIndirectPtrReg,
3601 ((MAC_ADDR_INDIRECT_PTR_REG_RP_MASK << 16) | 1));
3602 ql_write_page0_reg(qdev, &port_regs->macAddrDataReg,
3603 ((ndev->dev_addr[0] << 8) | ndev->dev_addr[1]));
3604 spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
3605
3606 return 0;
3607 }
3608
3609 static void ql3xxx_tx_timeout(struct net_device *ndev)
3610 {
3611 struct ql3_adapter *qdev = netdev_priv(ndev);
3612
3613 netdev_err(ndev, "Resetting...\n");
3614 /*
3615 * Stop the queues, we've got a problem.
3616 */
3617 netif_stop_queue(ndev);
3618
3619 /*
3620 * Wake up the worker to process this event.
3621 */
3622 queue_delayed_work(qdev->workqueue, &qdev->tx_timeout_work, 0);
3623 }
3624
3625 static void ql_reset_work(struct work_struct *work)
3626 {
3627 struct ql3_adapter *qdev =
3628 container_of(work, struct ql3_adapter, reset_work.work);
3629 struct net_device *ndev = qdev->ndev;
3630 u32 value;
3631 struct ql_tx_buf_cb *tx_cb;
3632 int max_wait_time, i;
3633 struct ql3xxx_port_registers __iomem *port_regs =
3634 qdev->mem_map_registers;
3635 unsigned long hw_flags;
3636
3637 if (test_bit((QL_RESET_PER_SCSI | QL_RESET_START), &qdev->flags)) {
3638 clear_bit(QL_LINK_MASTER, &qdev->flags);
3639
3640 /*
3641 * Loop through the active list and return the skb.
3642 */
3643 for (i = 0; i < NUM_REQ_Q_ENTRIES; i++) {
3644 int j;
3645 tx_cb = &qdev->tx_buf[i];
3646 if (tx_cb->skb) {
3647 netdev_printk(KERN_DEBUG, ndev,
3648 "Freeing lost SKB\n");
3649 pci_unmap_single(qdev->pdev,
3650 dma_unmap_addr(&tx_cb->map[0],
3651 mapaddr),
3652 dma_unmap_len(&tx_cb->map[0], maplen),
3653 PCI_DMA_TODEVICE);
3654 for (j = 1; j < tx_cb->seg_count; j++) {
3655 pci_unmap_page(qdev->pdev,
3656 dma_unmap_addr(&tx_cb->map[j],
3657 mapaddr),
3658 dma_unmap_len(&tx_cb->map[j],
3659 maplen),
3660 PCI_DMA_TODEVICE);
3661 }
3662 dev_kfree_skb(tx_cb->skb);
3663 tx_cb->skb = NULL;
3664 }
3665 }
3666
3667 netdev_err(ndev, "Clearing NRI after reset\n");
3668 spin_lock_irqsave(&qdev->hw_lock, hw_flags);
3669 ql_write_common_reg(qdev,
3670 &port_regs->CommonRegs.
3671 ispControlStatus,
3672 ((ISP_CONTROL_RI << 16) | ISP_CONTROL_RI));
3673 /*
3674 * Wait the for Soft Reset to Complete.
3675 */
3676 max_wait_time = 10;
3677 do {
3678 value = ql_read_common_reg(qdev,
3679 &port_regs->CommonRegs.
3680
3681 ispControlStatus);
3682 if ((value & ISP_CONTROL_SR) == 0) {
3683 netdev_printk(KERN_DEBUG, ndev,
3684 "reset completed\n");
3685 break;
3686 }
3687
3688 if (value & ISP_CONTROL_RI) {
3689 netdev_printk(KERN_DEBUG, ndev,
3690 "clearing NRI after reset\n");
3691 ql_write_common_reg(qdev,
3692 &port_regs->
3693 CommonRegs.
3694 ispControlStatus,
3695 ((ISP_CONTROL_RI <<
3696 16) | ISP_CONTROL_RI));
3697 }
3698
3699 spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
3700 ssleep(1);
3701 spin_lock_irqsave(&qdev->hw_lock, hw_flags);
3702 } while (--max_wait_time);
3703 spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
3704
3705 if (value & ISP_CONTROL_SR) {
3706
3707 /*
3708 * Set the reset flags and clear the board again.
3709 * Nothing else to do...
3710 */
3711 netdev_err(ndev,
3712 "Timed out waiting for reset to complete\n");
3713 netdev_err(ndev, "Do a reset\n");
3714 clear_bit(QL_RESET_PER_SCSI, &qdev->flags);
3715 clear_bit(QL_RESET_START, &qdev->flags);
3716 ql_cycle_adapter(qdev, QL_DO_RESET);
3717 return;
3718 }
3719
3720 clear_bit(QL_RESET_ACTIVE, &qdev->flags);
3721 clear_bit(QL_RESET_PER_SCSI, &qdev->flags);
3722 clear_bit(QL_RESET_START, &qdev->flags);
3723 ql_cycle_adapter(qdev, QL_NO_RESET);
3724 }
3725 }
3726
3727 static void ql_tx_timeout_work(struct work_struct *work)
3728 {
3729 struct ql3_adapter *qdev =
3730 container_of(work, struct ql3_adapter, tx_timeout_work.work);
3731
3732 ql_cycle_adapter(qdev, QL_DO_RESET);
3733 }
3734
3735 static void ql_get_board_info(struct ql3_adapter *qdev)
3736 {
3737 struct ql3xxx_port_registers __iomem *port_regs =
3738 qdev->mem_map_registers;
3739 u32 value;
3740
3741 value = ql_read_page0_reg_l(qdev, &port_regs->portStatus);
3742
3743 qdev->chip_rev_id = ((value & PORT_STATUS_REV_ID_MASK) >> 12);
3744 if (value & PORT_STATUS_64)
3745 qdev->pci_width = 64;
3746 else
3747 qdev->pci_width = 32;
3748 if (value & PORT_STATUS_X)
3749 qdev->pci_x = 1;
3750 else
3751 qdev->pci_x = 0;
3752 qdev->pci_slot = (u8) PCI_SLOT(qdev->pdev->devfn);
3753 }
3754
3755 static void ql3xxx_timer(unsigned long ptr)
3756 {
3757 struct ql3_adapter *qdev = (struct ql3_adapter *)ptr;
3758 queue_delayed_work(qdev->workqueue, &qdev->link_state_work, 0);
3759 }
3760
3761 static const struct net_device_ops ql3xxx_netdev_ops = {
3762 .ndo_open = ql3xxx_open,
3763 .ndo_start_xmit = ql3xxx_send,
3764 .ndo_stop = ql3xxx_close,
3765 .ndo_set_multicast_list = NULL, /* not allowed on NIC side */
3766 .ndo_change_mtu = eth_change_mtu,
3767 .ndo_validate_addr = eth_validate_addr,
3768 .ndo_set_mac_address = ql3xxx_set_mac_address,
3769 .ndo_tx_timeout = ql3xxx_tx_timeout,
3770 };
3771
3772 static int __devinit ql3xxx_probe(struct pci_dev *pdev,
3773 const struct pci_device_id *pci_entry)
3774 {
3775 struct net_device *ndev = NULL;
3776 struct ql3_adapter *qdev = NULL;
3777 static int cards_found;
3778 int uninitialized_var(pci_using_dac), err;
3779
3780 err = pci_enable_device(pdev);
3781 if (err) {
3782 pr_err("%s cannot enable PCI device\n", pci_name(pdev));
3783 goto err_out;
3784 }
3785
3786 err = pci_request_regions(pdev, DRV_NAME);
3787 if (err) {
3788 pr_err("%s cannot obtain PCI resources\n", pci_name(pdev));
3789 goto err_out_disable_pdev;
3790 }
3791
3792 pci_set_master(pdev);
3793
3794 if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) {
3795 pci_using_dac = 1;
3796 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
3797 } else if (!(err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)))) {
3798 pci_using_dac = 0;
3799 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
3800 }
3801
3802 if (err) {
3803 pr_err("%s no usable DMA configuration\n", pci_name(pdev));
3804 goto err_out_free_regions;
3805 }
3806
3807 ndev = alloc_etherdev(sizeof(struct ql3_adapter));
3808 if (!ndev) {
3809 pr_err("%s could not alloc etherdev\n", pci_name(pdev));
3810 err = -ENOMEM;
3811 goto err_out_free_regions;
3812 }
3813
3814 SET_NETDEV_DEV(ndev, &pdev->dev);
3815
3816 pci_set_drvdata(pdev, ndev);
3817
3818 qdev = netdev_priv(ndev);
3819 qdev->index = cards_found;
3820 qdev->ndev = ndev;
3821 qdev->pdev = pdev;
3822 qdev->device_id = pci_entry->device;
3823 qdev->port_link_state = LS_DOWN;
3824 if (msi)
3825 qdev->msi = 1;
3826
3827 qdev->msg_enable = netif_msg_init(debug, default_msg);
3828
3829 if (pci_using_dac)
3830 ndev->features |= NETIF_F_HIGHDMA;
3831 if (qdev->device_id == QL3032_DEVICE_ID)
3832 ndev->features |= NETIF_F_IP_CSUM | NETIF_F_SG;
3833
3834 qdev->mem_map_registers = pci_ioremap_bar(pdev, 1);
3835 if (!qdev->mem_map_registers) {
3836 pr_err("%s: cannot map device registers\n", pci_name(pdev));
3837 err = -EIO;
3838 goto err_out_free_ndev;
3839 }
3840
3841 spin_lock_init(&qdev->adapter_lock);
3842 spin_lock_init(&qdev->hw_lock);
3843
3844 /* Set driver entry points */
3845 ndev->netdev_ops = &ql3xxx_netdev_ops;
3846 SET_ETHTOOL_OPS(ndev, &ql3xxx_ethtool_ops);
3847 ndev->watchdog_timeo = 5 * HZ;
3848
3849 netif_napi_add(ndev, &qdev->napi, ql_poll, 64);
3850
3851 ndev->irq = pdev->irq;
3852
3853 /* make sure the EEPROM is good */
3854 if (ql_get_nvram_params(qdev)) {
3855 pr_alert("%s: Adapter #%d, Invalid NVRAM parameters\n",
3856 __func__, qdev->index);
3857 err = -EIO;
3858 goto err_out_iounmap;
3859 }
3860
3861 ql_set_mac_info(qdev);
3862
3863 /* Validate and set parameters */
3864 if (qdev->mac_index) {
3865 ndev->mtu = qdev->nvram_data.macCfg_port1.etherMtu_mac ;
3866 ql_set_mac_addr(ndev, qdev->nvram_data.funcCfg_fn2.macAddress);
3867 } else {
3868 ndev->mtu = qdev->nvram_data.macCfg_port0.etherMtu_mac ;
3869 ql_set_mac_addr(ndev, qdev->nvram_data.funcCfg_fn0.macAddress);
3870 }
3871 memcpy(ndev->perm_addr, ndev->dev_addr, ndev->addr_len);
3872
3873 ndev->tx_queue_len = NUM_REQ_Q_ENTRIES;
3874
3875 /* Record PCI bus information. */
3876 ql_get_board_info(qdev);
3877
3878 /*
3879 * Set the Maximum Memory Read Byte Count value. We do this to handle
3880 * jumbo frames.
3881 */
3882 if (qdev->pci_x)
3883 pci_write_config_word(pdev, (int)0x4e, (u16) 0x0036);
3884
3885 err = register_netdev(ndev);
3886 if (err) {
3887 pr_err("%s: cannot register net device\n", pci_name(pdev));
3888 goto err_out_iounmap;
3889 }
3890
3891 /* we're going to reset, so assume we have no link for now */
3892
3893 netif_carrier_off(ndev);
3894 netif_stop_queue(ndev);
3895
3896 qdev->workqueue = create_singlethread_workqueue(ndev->name);
3897 INIT_DELAYED_WORK(&qdev->reset_work, ql_reset_work);
3898 INIT_DELAYED_WORK(&qdev->tx_timeout_work, ql_tx_timeout_work);
3899 INIT_DELAYED_WORK(&qdev->link_state_work, ql_link_state_machine_work);
3900
3901 init_timer(&qdev->adapter_timer);
3902 qdev->adapter_timer.function = ql3xxx_timer;
3903 qdev->adapter_timer.expires = jiffies + HZ * 2; /* two second delay */
3904 qdev->adapter_timer.data = (unsigned long)qdev;
3905
3906 if (!cards_found) {
3907 pr_alert("%s\n", DRV_STRING);
3908 pr_alert("Driver name: %s, Version: %s\n",
3909 DRV_NAME, DRV_VERSION);
3910 }
3911 ql_display_dev_info(ndev);
3912
3913 cards_found++;
3914 return 0;
3915
3916 err_out_iounmap:
3917 iounmap(qdev->mem_map_registers);
3918 err_out_free_ndev:
3919 free_netdev(ndev);
3920 err_out_free_regions:
3921 pci_release_regions(pdev);
3922 err_out_disable_pdev:
3923 pci_disable_device(pdev);
3924 pci_set_drvdata(pdev, NULL);
3925 err_out:
3926 return err;
3927 }
3928
3929 static void __devexit ql3xxx_remove(struct pci_dev *pdev)
3930 {
3931 struct net_device *ndev = pci_get_drvdata(pdev);
3932 struct ql3_adapter *qdev = netdev_priv(ndev);
3933
3934 unregister_netdev(ndev);
3935
3936 ql_disable_interrupts(qdev);
3937
3938 if (qdev->workqueue) {
3939 cancel_delayed_work(&qdev->reset_work);
3940 cancel_delayed_work(&qdev->tx_timeout_work);
3941 destroy_workqueue(qdev->workqueue);
3942 qdev->workqueue = NULL;
3943 }
3944
3945 iounmap(qdev->mem_map_registers);
3946 pci_release_regions(pdev);
3947 pci_set_drvdata(pdev, NULL);
3948 free_netdev(ndev);
3949 }
3950
3951 static struct pci_driver ql3xxx_driver = {
3952
3953 .name = DRV_NAME,
3954 .id_table = ql3xxx_pci_tbl,
3955 .probe = ql3xxx_probe,
3956 .remove = __devexit_p(ql3xxx_remove),
3957 };
3958
3959 static int __init ql3xxx_init_module(void)
3960 {
3961 return pci_register_driver(&ql3xxx_driver);
3962 }
3963
3964 static void __exit ql3xxx_exit(void)
3965 {
3966 pci_unregister_driver(&ql3xxx_driver);
3967 }
3968
3969 module_init(ql3xxx_init_module);
3970 module_exit(ql3xxx_exit);
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree