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slub: fix a possible memleak in __slab_alloc()
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / net / qla3xxx.c
blob2f6914025efc8bbfed44320014aea866e7d774cf
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 #include <linux/prefetch.h>
39
40 #include "qla3xxx.h"
41
42 #define DRV_NAME "qla3xxx"
43 #define DRV_STRING "QLogic ISP3XXX Network Driver"
44 #define DRV_VERSION "v2.03.00-k5"
45
46 static const char ql3xxx_driver_name[] = DRV_NAME;
47 static const char ql3xxx_driver_version[] = DRV_VERSION;
48
49 #define TIMED_OUT_MSG \
50 "Timed out waiting for management port to get free before issuing command\n"
51
52 MODULE_AUTHOR("QLogic Corporation");
53 MODULE_DESCRIPTION("QLogic ISP3XXX Network Driver " DRV_VERSION " ");
54 MODULE_LICENSE("GPL");
55 MODULE_VERSION(DRV_VERSION);
56
57 static const u32 default_msg
58 = NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK
59 | NETIF_MSG_IFUP | NETIF_MSG_IFDOWN;
60
61 static int debug = -1; /* defaults above */
62 module_param(debug, int, 0);
63 MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)");
64
65 static int msi;
66 module_param(msi, int, 0);
67 MODULE_PARM_DESC(msi, "Turn on Message Signaled Interrupts.");
68
69 static DEFINE_PCI_DEVICE_TABLE(ql3xxx_pci_tbl) = {
70 {PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, QL3022_DEVICE_ID)},
71 {PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, QL3032_DEVICE_ID)},
72 /* required last entry */
73 {0,}
74 };
75
76 MODULE_DEVICE_TABLE(pci, ql3xxx_pci_tbl);
77
78 /*
79 * These are the known PHY's which are used
80 */
81 enum PHY_DEVICE_TYPE {
82 PHY_TYPE_UNKNOWN = 0,
83 PHY_VITESSE_VSC8211,
84 PHY_AGERE_ET1011C,
85 MAX_PHY_DEV_TYPES
86 };
87
88 struct PHY_DEVICE_INFO {
89 const enum PHY_DEVICE_TYPE phyDevice;
90 const u32 phyIdOUI;
91 const u16 phyIdModel;
92 const char *name;
93 };
94
95 static const struct PHY_DEVICE_INFO PHY_DEVICES[] = {
96 {PHY_TYPE_UNKNOWN, 0x000000, 0x0, "PHY_TYPE_UNKNOWN"},
97 {PHY_VITESSE_VSC8211, 0x0003f1, 0xb, "PHY_VITESSE_VSC8211"},
98 {PHY_AGERE_ET1011C, 0x00a0bc, 0x1, "PHY_AGERE_ET1011C"},
99 };
100
101
102 /*
103 * Caller must take hw_lock.
104 */
105 static int ql_sem_spinlock(struct ql3_adapter *qdev,
106 u32 sem_mask, u32 sem_bits)
107 {
108 struct ql3xxx_port_registers __iomem *port_regs =
109 qdev->mem_map_registers;
110 u32 value;
111 unsigned int seconds = 3;
112
113 do {
114 writel((sem_mask | sem_bits),
115 &port_regs->CommonRegs.semaphoreReg);
116 value = readl(&port_regs->CommonRegs.semaphoreReg);
117 if ((value & (sem_mask >> 16)) == sem_bits)
118 return 0;
119 ssleep(1);
120 } while (--seconds);
121 return -1;
122 }
123
124 static void ql_sem_unlock(struct ql3_adapter *qdev, u32 sem_mask)
125 {
126 struct ql3xxx_port_registers __iomem *port_regs =
127 qdev->mem_map_registers;
128 writel(sem_mask, &port_regs->CommonRegs.semaphoreReg);
129 readl(&port_regs->CommonRegs.semaphoreReg);
130 }
131
132 static int ql_sem_lock(struct ql3_adapter *qdev, u32 sem_mask, u32 sem_bits)
133 {
134 struct ql3xxx_port_registers __iomem *port_regs =
135 qdev->mem_map_registers;
136 u32 value;
137
138 writel((sem_mask | sem_bits), &port_regs->CommonRegs.semaphoreReg);
139 value = readl(&port_regs->CommonRegs.semaphoreReg);
140 return ((value & (sem_mask >> 16)) == sem_bits);
141 }
142
143 /*
144 * Caller holds hw_lock.
145 */
146 static int ql_wait_for_drvr_lock(struct ql3_adapter *qdev)
147 {
148 int i = 0;
149
150 while (i < 10) {
151 if (i)
152 ssleep(1);
153
154 if (ql_sem_lock(qdev,
155 QL_DRVR_SEM_MASK,
156 (QL_RESOURCE_BITS_BASE_CODE | (qdev->mac_index)
157 * 2) << 1)) {
158 netdev_printk(KERN_DEBUG, qdev->ndev,
159 "driver lock acquired\n");
160 return 1;
161 }
162 }
163
164 netdev_err(qdev->ndev, "Timed out waiting for driver lock...\n");
165 return 0;
166 }
167
168 static void ql_set_register_page(struct ql3_adapter *qdev, u32 page)
169 {
170 struct ql3xxx_port_registers __iomem *port_regs =
171 qdev->mem_map_registers;
172
173 writel(((ISP_CONTROL_NP_MASK << 16) | page),
174 &port_regs->CommonRegs.ispControlStatus);
175 readl(&port_regs->CommonRegs.ispControlStatus);
176 qdev->current_page = page;
177 }
178
179 static u32 ql_read_common_reg_l(struct ql3_adapter *qdev, u32 __iomem *reg)
180 {
181 u32 value;
182 unsigned long hw_flags;
183
184 spin_lock_irqsave(&qdev->hw_lock, hw_flags);
185 value = readl(reg);
186 spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
187
188 return value;
189 }
190
191 static u32 ql_read_common_reg(struct ql3_adapter *qdev, u32 __iomem *reg)
192 {
193 return readl(reg);
194 }
195
196 static u32 ql_read_page0_reg_l(struct ql3_adapter *qdev, u32 __iomem *reg)
197 {
198 u32 value;
199 unsigned long hw_flags;
200
201 spin_lock_irqsave(&qdev->hw_lock, hw_flags);
202
203 if (qdev->current_page != 0)
204 ql_set_register_page(qdev, 0);
205 value = readl(reg);
206
207 spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
208 return value;
209 }
210
211 static u32 ql_read_page0_reg(struct ql3_adapter *qdev, u32 __iomem *reg)
212 {
213 if (qdev->current_page != 0)
214 ql_set_register_page(qdev, 0);
215 return readl(reg);
216 }
217
218 static void ql_write_common_reg_l(struct ql3_adapter *qdev,
219 u32 __iomem *reg, u32 value)
220 {
221 unsigned long hw_flags;
222
223 spin_lock_irqsave(&qdev->hw_lock, hw_flags);
224 writel(value, reg);
225 readl(reg);
226 spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
227 }
228
229 static void ql_write_common_reg(struct ql3_adapter *qdev,
230 u32 __iomem *reg, u32 value)
231 {
232 writel(value, reg);
233 readl(reg);
234 }
235
236 static void ql_write_nvram_reg(struct ql3_adapter *qdev,
237 u32 __iomem *reg, u32 value)
238 {
239 writel(value, reg);
240 readl(reg);
241 udelay(1);
242 }
243
244 static void ql_write_page0_reg(struct ql3_adapter *qdev,
245 u32 __iomem *reg, u32 value)
246 {
247 if (qdev->current_page != 0)
248 ql_set_register_page(qdev, 0);
249 writel(value, reg);
250 readl(reg);
251 }
252
253 /*
254 * Caller holds hw_lock. Only called during init.
255 */
256 static void ql_write_page1_reg(struct ql3_adapter *qdev,
257 u32 __iomem *reg, u32 value)
258 {
259 if (qdev->current_page != 1)
260 ql_set_register_page(qdev, 1);
261 writel(value, reg);
262 readl(reg);
263 }
264
265 /*
266 * Caller holds hw_lock. Only called during init.
267 */
268 static void ql_write_page2_reg(struct ql3_adapter *qdev,
269 u32 __iomem *reg, u32 value)
270 {
271 if (qdev->current_page != 2)
272 ql_set_register_page(qdev, 2);
273 writel(value, reg);
274 readl(reg);
275 }
276
277 static void ql_disable_interrupts(struct ql3_adapter *qdev)
278 {
279 struct ql3xxx_port_registers __iomem *port_regs =
280 qdev->mem_map_registers;
281
282 ql_write_common_reg_l(qdev, &port_regs->CommonRegs.ispInterruptMaskReg,
283 (ISP_IMR_ENABLE_INT << 16));
284
285 }
286
287 static void ql_enable_interrupts(struct ql3_adapter *qdev)
288 {
289 struct ql3xxx_port_registers __iomem *port_regs =
290 qdev->mem_map_registers;
291
292 ql_write_common_reg_l(qdev, &port_regs->CommonRegs.ispInterruptMaskReg,
293 ((0xff << 16) | ISP_IMR_ENABLE_INT));
294
295 }
296
297 static void ql_release_to_lrg_buf_free_list(struct ql3_adapter *qdev,
298 struct ql_rcv_buf_cb *lrg_buf_cb)
299 {
300 dma_addr_t map;
301 int err;
302 lrg_buf_cb->next = NULL;
303
304 if (qdev->lrg_buf_free_tail == NULL) { /* The list is empty */
305 qdev->lrg_buf_free_head = qdev->lrg_buf_free_tail = lrg_buf_cb;
306 } else {
307 qdev->lrg_buf_free_tail->next = lrg_buf_cb;
308 qdev->lrg_buf_free_tail = lrg_buf_cb;
309 }
310
311 if (!lrg_buf_cb->skb) {
312 lrg_buf_cb->skb = netdev_alloc_skb(qdev->ndev,
313 qdev->lrg_buffer_len);
314 if (unlikely(!lrg_buf_cb->skb)) {
315 netdev_err(qdev->ndev, "failed netdev_alloc_skb()\n");
316 qdev->lrg_buf_skb_check++;
317 } else {
318 /*
319 * We save some space to copy the ethhdr from first
320 * buffer
321 */
322 skb_reserve(lrg_buf_cb->skb, QL_HEADER_SPACE);
323 map = pci_map_single(qdev->pdev,
324 lrg_buf_cb->skb->data,
325 qdev->lrg_buffer_len -
326 QL_HEADER_SPACE,
327 PCI_DMA_FROMDEVICE);
328 err = pci_dma_mapping_error(qdev->pdev, map);
329 if (err) {
330 netdev_err(qdev->ndev,
331 "PCI mapping failed with error: %d\n",
332 err);
333 dev_kfree_skb(lrg_buf_cb->skb);
334 lrg_buf_cb->skb = NULL;
335
336 qdev->lrg_buf_skb_check++;
337 return;
338 }
339
340 lrg_buf_cb->buf_phy_addr_low =
341 cpu_to_le32(LS_64BITS(map));
342 lrg_buf_cb->buf_phy_addr_high =
343 cpu_to_le32(MS_64BITS(map));
344 dma_unmap_addr_set(lrg_buf_cb, mapaddr, map);
345 dma_unmap_len_set(lrg_buf_cb, maplen,
346 qdev->lrg_buffer_len -
347 QL_HEADER_SPACE);
348 }
349 }
350
351 qdev->lrg_buf_free_count++;
352 }
353
354 static struct ql_rcv_buf_cb *ql_get_from_lrg_buf_free_list(struct ql3_adapter
355 *qdev)
356 {
357 struct ql_rcv_buf_cb *lrg_buf_cb = qdev->lrg_buf_free_head;
358
359 if (lrg_buf_cb != NULL) {
360 qdev->lrg_buf_free_head = lrg_buf_cb->next;
361 if (qdev->lrg_buf_free_head == NULL)
362 qdev->lrg_buf_free_tail = NULL;
363 qdev->lrg_buf_free_count--;
364 }
365
366 return lrg_buf_cb;
367 }
368
369 static u32 addrBits = EEPROM_NO_ADDR_BITS;
370 static u32 dataBits = EEPROM_NO_DATA_BITS;
371
372 static void fm93c56a_deselect(struct ql3_adapter *qdev);
373 static void eeprom_readword(struct ql3_adapter *qdev, u32 eepromAddr,
374 unsigned short *value);
375
376 /*
377 * Caller holds hw_lock.
378 */
379 static void fm93c56a_select(struct ql3_adapter *qdev)
380 {
381 struct ql3xxx_port_registers __iomem *port_regs =
382 qdev->mem_map_registers;
383 __iomem u32 *spir = &port_regs->CommonRegs.serialPortInterfaceReg;
384
385 qdev->eeprom_cmd_data = AUBURN_EEPROM_CS_1;
386 ql_write_nvram_reg(qdev, spir, ISP_NVRAM_MASK | qdev->eeprom_cmd_data);
387 ql_write_nvram_reg(qdev, spir,
388 ((ISP_NVRAM_MASK << 16) | qdev->eeprom_cmd_data));
389 }
390
391 /*
392 * Caller holds hw_lock.
393 */
394 static void fm93c56a_cmd(struct ql3_adapter *qdev, u32 cmd, u32 eepromAddr)
395 {
396 int i;
397 u32 mask;
398 u32 dataBit;
399 u32 previousBit;
400 struct ql3xxx_port_registers __iomem *port_regs =
401 qdev->mem_map_registers;
402 __iomem u32 *spir = &port_regs->CommonRegs.serialPortInterfaceReg;
403
404 /* Clock in a zero, then do the start bit */
405 ql_write_nvram_reg(qdev, spir,
406 (ISP_NVRAM_MASK | qdev->eeprom_cmd_data |
407 AUBURN_EEPROM_DO_1));
408 ql_write_nvram_reg(qdev, spir,
409 (ISP_NVRAM_MASK | qdev->eeprom_cmd_data |
410 AUBURN_EEPROM_DO_1 | AUBURN_EEPROM_CLK_RISE));
411 ql_write_nvram_reg(qdev, spir,
412 (ISP_NVRAM_MASK | qdev->eeprom_cmd_data |
413 AUBURN_EEPROM_DO_1 | AUBURN_EEPROM_CLK_FALL));
414
415 mask = 1 << (FM93C56A_CMD_BITS - 1);
416 /* Force the previous data bit to be different */
417 previousBit = 0xffff;
418 for (i = 0; i < FM93C56A_CMD_BITS; i++) {
419 dataBit = (cmd & mask)
420 ? AUBURN_EEPROM_DO_1
421 : AUBURN_EEPROM_DO_0;
422 if (previousBit != dataBit) {
423 /* If the bit changed, change the DO state to match */
424 ql_write_nvram_reg(qdev, spir,
425 (ISP_NVRAM_MASK |
426 qdev->eeprom_cmd_data | dataBit));
427 previousBit = dataBit;
428 }
429 ql_write_nvram_reg(qdev, spir,
430 (ISP_NVRAM_MASK | qdev->eeprom_cmd_data |
431 dataBit | AUBURN_EEPROM_CLK_RISE));
432 ql_write_nvram_reg(qdev, spir,
433 (ISP_NVRAM_MASK | qdev->eeprom_cmd_data |
434 dataBit | AUBURN_EEPROM_CLK_FALL));
435 cmd = cmd << 1;
436 }
437
438 mask = 1 << (addrBits - 1);
439 /* Force the previous data bit to be different */
440 previousBit = 0xffff;
441 for (i = 0; i < addrBits; i++) {
442 dataBit = (eepromAddr & mask) ? AUBURN_EEPROM_DO_1
443 : AUBURN_EEPROM_DO_0;
444 if (previousBit != dataBit) {
445 /*
446 * If the bit changed, then change the DO state to
447 * match
448 */
449 ql_write_nvram_reg(qdev, spir,
450 (ISP_NVRAM_MASK |
451 qdev->eeprom_cmd_data | dataBit));
452 previousBit = dataBit;
453 }
454 ql_write_nvram_reg(qdev, spir,
455 (ISP_NVRAM_MASK | qdev->eeprom_cmd_data |
456 dataBit | AUBURN_EEPROM_CLK_RISE));
457 ql_write_nvram_reg(qdev, spir,
458 (ISP_NVRAM_MASK | qdev->eeprom_cmd_data |
459 dataBit | AUBURN_EEPROM_CLK_FALL));
460 eepromAddr = eepromAddr << 1;
461 }
462 }
463
464 /*
465 * Caller holds hw_lock.
466 */
467 static void fm93c56a_deselect(struct ql3_adapter *qdev)
468 {
469 struct ql3xxx_port_registers __iomem *port_regs =
470 qdev->mem_map_registers;
471 __iomem u32 *spir = &port_regs->CommonRegs.serialPortInterfaceReg;
472
473 qdev->eeprom_cmd_data = AUBURN_EEPROM_CS_0;
474 ql_write_nvram_reg(qdev, spir, ISP_NVRAM_MASK | qdev->eeprom_cmd_data);
475 }
476
477 /*
478 * Caller holds hw_lock.
479 */
480 static void fm93c56a_datain(struct ql3_adapter *qdev, unsigned short *value)
481 {
482 int i;
483 u32 data = 0;
484 u32 dataBit;
485 struct ql3xxx_port_registers __iomem *port_regs =
486 qdev->mem_map_registers;
487 __iomem u32 *spir = &port_regs->CommonRegs.serialPortInterfaceReg;
488
489 /* Read the data bits */
490 /* The first bit is a dummy. Clock right over it. */
491 for (i = 0; i < dataBits; i++) {
492 ql_write_nvram_reg(qdev, spir,
493 ISP_NVRAM_MASK | qdev->eeprom_cmd_data |
494 AUBURN_EEPROM_CLK_RISE);
495 ql_write_nvram_reg(qdev, spir,
496 ISP_NVRAM_MASK | qdev->eeprom_cmd_data |
497 AUBURN_EEPROM_CLK_FALL);
498 dataBit = (ql_read_common_reg(qdev, spir) &
499 AUBURN_EEPROM_DI_1) ? 1 : 0;
500 data = (data << 1) | dataBit;
501 }
502 *value = (u16)data;
503 }
504
505 /*
506 * Caller holds hw_lock.
507 */
508 static void eeprom_readword(struct ql3_adapter *qdev,
509 u32 eepromAddr, unsigned short *value)
510 {
511 fm93c56a_select(qdev);
512 fm93c56a_cmd(qdev, (int)FM93C56A_READ, eepromAddr);
513 fm93c56a_datain(qdev, value);
514 fm93c56a_deselect(qdev);
515 }
516
517 static void ql_set_mac_addr(struct net_device *ndev, u16 *addr)
518 {
519 __le16 *p = (__le16 *)ndev->dev_addr;
520 p[0] = cpu_to_le16(addr[0]);
521 p[1] = cpu_to_le16(addr[1]);
522 p[2] = cpu_to_le16(addr[2]);
523 }
524
525 static int ql_get_nvram_params(struct ql3_adapter *qdev)
526 {
527 u16 *pEEPROMData;
528 u16 checksum = 0;
529 u32 index;
530 unsigned long hw_flags;
531
532 spin_lock_irqsave(&qdev->hw_lock, hw_flags);
533
534 pEEPROMData = (u16 *)&qdev->nvram_data;
535 qdev->eeprom_cmd_data = 0;
536 if (ql_sem_spinlock(qdev, QL_NVRAM_SEM_MASK,
537 (QL_RESOURCE_BITS_BASE_CODE | (qdev->mac_index) *
538 2) << 10)) {
539 pr_err("%s: Failed ql_sem_spinlock()\n", __func__);
540 spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
541 return -1;
542 }
543
544 for (index = 0; index < EEPROM_SIZE; index++) {
545 eeprom_readword(qdev, index, pEEPROMData);
546 checksum += *pEEPROMData;
547 pEEPROMData++;
548 }
549 ql_sem_unlock(qdev, QL_NVRAM_SEM_MASK);
550
551 if (checksum != 0) {
552 netdev_err(qdev->ndev, "checksum should be zero, is %x!!\n",
553 checksum);
554 spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
555 return -1;
556 }
557
558 spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
559 return checksum;
560 }
561
562 static const u32 PHYAddr[2] = {
563 PORT0_PHY_ADDRESS, PORT1_PHY_ADDRESS
564 };
565
566 static int ql_wait_for_mii_ready(struct ql3_adapter *qdev)
567 {
568 struct ql3xxx_port_registers __iomem *port_regs =
569 qdev->mem_map_registers;
570 u32 temp;
571 int count = 1000;
572
573 while (count) {
574 temp = ql_read_page0_reg(qdev, &port_regs->macMIIStatusReg);
575 if (!(temp & MAC_MII_STATUS_BSY))
576 return 0;
577 udelay(10);
578 count--;
579 }
580 return -1;
581 }
582
583 static void ql_mii_enable_scan_mode(struct ql3_adapter *qdev)
584 {
585 struct ql3xxx_port_registers __iomem *port_regs =
586 qdev->mem_map_registers;
587 u32 scanControl;
588
589 if (qdev->numPorts > 1) {
590 /* Auto scan will cycle through multiple ports */
591 scanControl = MAC_MII_CONTROL_AS | MAC_MII_CONTROL_SC;
592 } else {
593 scanControl = MAC_MII_CONTROL_SC;
594 }
595
596 /*
597 * Scan register 1 of PHY/PETBI,
598 * Set up to scan both devices
599 * The autoscan starts from the first register, completes
600 * the last one before rolling over to the first
601 */
602 ql_write_page0_reg(qdev, &port_regs->macMIIMgmtAddrReg,
603 PHYAddr[0] | MII_SCAN_REGISTER);
604
605 ql_write_page0_reg(qdev, &port_regs->macMIIMgmtControlReg,
606 (scanControl) |
607 ((MAC_MII_CONTROL_SC | MAC_MII_CONTROL_AS) << 16));
608 }
609
610 static u8 ql_mii_disable_scan_mode(struct ql3_adapter *qdev)
611 {
612 u8 ret;
613 struct ql3xxx_port_registers __iomem *port_regs =
614 qdev->mem_map_registers;
615
616 /* See if scan mode is enabled before we turn it off */
617 if (ql_read_page0_reg(qdev, &port_regs->macMIIMgmtControlReg) &
618 (MAC_MII_CONTROL_AS | MAC_MII_CONTROL_SC)) {
619 /* Scan is enabled */
620 ret = 1;
621 } else {
622 /* Scan is disabled */
623 ret = 0;
624 }
625
626 /*
627 * When disabling scan mode you must first change the MII register
628 * address
629 */
630 ql_write_page0_reg(qdev, &port_regs->macMIIMgmtAddrReg,
631 PHYAddr[0] | MII_SCAN_REGISTER);
632
633 ql_write_page0_reg(qdev, &port_regs->macMIIMgmtControlReg,
634 ((MAC_MII_CONTROL_SC | MAC_MII_CONTROL_AS |
635 MAC_MII_CONTROL_RC) << 16));
636
637 return ret;
638 }
639
640 static int ql_mii_write_reg_ex(struct ql3_adapter *qdev,
641 u16 regAddr, u16 value, u32 phyAddr)
642 {
643 struct ql3xxx_port_registers __iomem *port_regs =
644 qdev->mem_map_registers;
645 u8 scanWasEnabled;
646
647 scanWasEnabled = ql_mii_disable_scan_mode(qdev);
648
649 if (ql_wait_for_mii_ready(qdev)) {
650 netif_warn(qdev, link, qdev->ndev, TIMED_OUT_MSG);
651 return -1;
652 }
653
654 ql_write_page0_reg(qdev, &port_regs->macMIIMgmtAddrReg,
655 phyAddr | regAddr);
656
657 ql_write_page0_reg(qdev, &port_regs->macMIIMgmtDataReg, value);
658
659 /* Wait for write to complete 9/10/04 SJP */
660 if (ql_wait_for_mii_ready(qdev)) {
661 netif_warn(qdev, link, qdev->ndev, TIMED_OUT_MSG);
662 return -1;
663 }
664
665 if (scanWasEnabled)
666 ql_mii_enable_scan_mode(qdev);
667
668 return 0;
669 }
670
671 static int ql_mii_read_reg_ex(struct ql3_adapter *qdev, u16 regAddr,
672 u16 *value, u32 phyAddr)
673 {
674 struct ql3xxx_port_registers __iomem *port_regs =
675 qdev->mem_map_registers;
676 u8 scanWasEnabled;
677 u32 temp;
678
679 scanWasEnabled = ql_mii_disable_scan_mode(qdev);
680
681 if (ql_wait_for_mii_ready(qdev)) {
682 netif_warn(qdev, link, qdev->ndev, TIMED_OUT_MSG);
683 return -1;
684 }
685
686 ql_write_page0_reg(qdev, &port_regs->macMIIMgmtAddrReg,
687 phyAddr | regAddr);
688
689 ql_write_page0_reg(qdev, &port_regs->macMIIMgmtControlReg,
690 (MAC_MII_CONTROL_RC << 16));
691
692 ql_write_page0_reg(qdev, &port_regs->macMIIMgmtControlReg,
693 (MAC_MII_CONTROL_RC << 16) | MAC_MII_CONTROL_RC);
694
695 /* Wait for the read to complete */
696 if (ql_wait_for_mii_ready(qdev)) {
697 netif_warn(qdev, link, qdev->ndev, TIMED_OUT_MSG);
698 return -1;
699 }
700
701 temp = ql_read_page0_reg(qdev, &port_regs->macMIIMgmtDataReg);
702 *value = (u16) temp;
703
704 if (scanWasEnabled)
705 ql_mii_enable_scan_mode(qdev);
706
707 return 0;
708 }
709
710 static int ql_mii_write_reg(struct ql3_adapter *qdev, u16 regAddr, u16 value)
711 {
712 struct ql3xxx_port_registers __iomem *port_regs =
713 qdev->mem_map_registers;
714
715 ql_mii_disable_scan_mode(qdev);
716
717 if (ql_wait_for_mii_ready(qdev)) {
718 netif_warn(qdev, link, qdev->ndev, TIMED_OUT_MSG);
719 return -1;
720 }
721
722 ql_write_page0_reg(qdev, &port_regs->macMIIMgmtAddrReg,
723 qdev->PHYAddr | regAddr);
724
725 ql_write_page0_reg(qdev, &port_regs->macMIIMgmtDataReg, value);
726
727 /* Wait for write to complete. */
728 if (ql_wait_for_mii_ready(qdev)) {
729 netif_warn(qdev, link, qdev->ndev, TIMED_OUT_MSG);
730 return -1;
731 }
732
733 ql_mii_enable_scan_mode(qdev);
734
735 return 0;
736 }
737
738 static int ql_mii_read_reg(struct ql3_adapter *qdev, u16 regAddr, u16 *value)
739 {
740 u32 temp;
741 struct ql3xxx_port_registers __iomem *port_regs =
742 qdev->mem_map_registers;
743
744 ql_mii_disable_scan_mode(qdev);
745
746 if (ql_wait_for_mii_ready(qdev)) {
747 netif_warn(qdev, link, qdev->ndev, TIMED_OUT_MSG);
748 return -1;
749 }
750
751 ql_write_page0_reg(qdev, &port_regs->macMIIMgmtAddrReg,
752 qdev->PHYAddr | regAddr);
753
754 ql_write_page0_reg(qdev, &port_regs->macMIIMgmtControlReg,
755 (MAC_MII_CONTROL_RC << 16));
756
757 ql_write_page0_reg(qdev, &port_regs->macMIIMgmtControlReg,
758 (MAC_MII_CONTROL_RC << 16) | MAC_MII_CONTROL_RC);
759
760 /* Wait for the read to complete */
761 if (ql_wait_for_mii_ready(qdev)) {
762 netif_warn(qdev, link, qdev->ndev, TIMED_OUT_MSG);
763 return -1;
764 }
765
766 temp = ql_read_page0_reg(qdev, &port_regs->macMIIMgmtDataReg);
767 *value = (u16) temp;
768
769 ql_mii_enable_scan_mode(qdev);
770
771 return 0;
772 }
773
774 static void ql_petbi_reset(struct ql3_adapter *qdev)
775 {
776 ql_mii_write_reg(qdev, PETBI_CONTROL_REG, PETBI_CTRL_SOFT_RESET);
777 }
778
779 static void ql_petbi_start_neg(struct ql3_adapter *qdev)
780 {
781 u16 reg;
782
783 /* Enable Auto-negotiation sense */
784 ql_mii_read_reg(qdev, PETBI_TBI_CTRL, &reg);
785 reg |= PETBI_TBI_AUTO_SENSE;
786 ql_mii_write_reg(qdev, PETBI_TBI_CTRL, reg);
787
788 ql_mii_write_reg(qdev, PETBI_NEG_ADVER,
789 PETBI_NEG_PAUSE | PETBI_NEG_DUPLEX);
790
791 ql_mii_write_reg(qdev, PETBI_CONTROL_REG,
792 PETBI_CTRL_AUTO_NEG | PETBI_CTRL_RESTART_NEG |
793 PETBI_CTRL_FULL_DUPLEX | PETBI_CTRL_SPEED_1000);
794
795 }
796
797 static void ql_petbi_reset_ex(struct ql3_adapter *qdev)
798 {
799 ql_mii_write_reg_ex(qdev, PETBI_CONTROL_REG, PETBI_CTRL_SOFT_RESET,
800 PHYAddr[qdev->mac_index]);
801 }
802
803 static void ql_petbi_start_neg_ex(struct ql3_adapter *qdev)
804 {
805 u16 reg;
806
807 /* Enable Auto-negotiation sense */
808 ql_mii_read_reg_ex(qdev, PETBI_TBI_CTRL, &reg,
809 PHYAddr[qdev->mac_index]);
810 reg |= PETBI_TBI_AUTO_SENSE;
811 ql_mii_write_reg_ex(qdev, PETBI_TBI_CTRL, reg,
812 PHYAddr[qdev->mac_index]);
813
814 ql_mii_write_reg_ex(qdev, PETBI_NEG_ADVER,
815 PETBI_NEG_PAUSE | PETBI_NEG_DUPLEX,
816 PHYAddr[qdev->mac_index]);
817
818 ql_mii_write_reg_ex(qdev, PETBI_CONTROL_REG,
819 PETBI_CTRL_AUTO_NEG | PETBI_CTRL_RESTART_NEG |
820 PETBI_CTRL_FULL_DUPLEX | PETBI_CTRL_SPEED_1000,
821 PHYAddr[qdev->mac_index]);
822 }
823
824 static void ql_petbi_init(struct ql3_adapter *qdev)
825 {
826 ql_petbi_reset(qdev);
827 ql_petbi_start_neg(qdev);
828 }
829
830 static void ql_petbi_init_ex(struct ql3_adapter *qdev)
831 {
832 ql_petbi_reset_ex(qdev);
833 ql_petbi_start_neg_ex(qdev);
834 }
835
836 static int ql_is_petbi_neg_pause(struct ql3_adapter *qdev)
837 {
838 u16 reg;
839
840 if (ql_mii_read_reg(qdev, PETBI_NEG_PARTNER, &reg) < 0)
841 return 0;
842
843 return (reg & PETBI_NEG_PAUSE_MASK) == PETBI_NEG_PAUSE;
844 }
845
846 static void phyAgereSpecificInit(struct ql3_adapter *qdev, u32 miiAddr)
847 {
848 netdev_info(qdev->ndev, "enabling Agere specific PHY\n");
849 /* power down device bit 11 = 1 */
850 ql_mii_write_reg_ex(qdev, 0x00, 0x1940, miiAddr);
851 /* enable diagnostic mode bit 2 = 1 */
852 ql_mii_write_reg_ex(qdev, 0x12, 0x840e, miiAddr);
853 /* 1000MB amplitude adjust (see Agere errata) */
854 ql_mii_write_reg_ex(qdev, 0x10, 0x8805, miiAddr);
855 /* 1000MB amplitude adjust (see Agere errata) */
856 ql_mii_write_reg_ex(qdev, 0x11, 0xf03e, miiAddr);
857 /* 100MB amplitude adjust (see Agere errata) */
858 ql_mii_write_reg_ex(qdev, 0x10, 0x8806, miiAddr);
859 /* 100MB amplitude adjust (see Agere errata) */
860 ql_mii_write_reg_ex(qdev, 0x11, 0x003e, miiAddr);
861 /* 10MB amplitude adjust (see Agere errata) */
862 ql_mii_write_reg_ex(qdev, 0x10, 0x8807, miiAddr);
863 /* 10MB amplitude adjust (see Agere errata) */
864 ql_mii_write_reg_ex(qdev, 0x11, 0x1f00, miiAddr);
865 /* point to hidden reg 0x2806 */
866 ql_mii_write_reg_ex(qdev, 0x10, 0x2806, miiAddr);
867 /* Write new PHYAD w/bit 5 set */
868 ql_mii_write_reg_ex(qdev, 0x11,
869 0x0020 | (PHYAddr[qdev->mac_index] >> 8), miiAddr);
870 /*
871 * Disable diagnostic mode bit 2 = 0
872 * Power up device bit 11 = 0
873 * Link up (on) and activity (blink)
874 */
875 ql_mii_write_reg(qdev, 0x12, 0x840a);
876 ql_mii_write_reg(qdev, 0x00, 0x1140);
877 ql_mii_write_reg(qdev, 0x1c, 0xfaf0);
878 }
879
880 static enum PHY_DEVICE_TYPE getPhyType(struct ql3_adapter *qdev,
881 u16 phyIdReg0, u16 phyIdReg1)
882 {
883 enum PHY_DEVICE_TYPE result = PHY_TYPE_UNKNOWN;
884 u32 oui;
885 u16 model;
886 int i;
887
888 if (phyIdReg0 == 0xffff)
889 return result;
890
891 if (phyIdReg1 == 0xffff)
892 return result;
893
894 /* oui is split between two registers */
895 oui = (phyIdReg0 << 6) | ((phyIdReg1 & PHY_OUI_1_MASK) >> 10);
896
897 model = (phyIdReg1 & PHY_MODEL_MASK) >> 4;
898
899 /* Scan table for this PHY */
900 for (i = 0; i < MAX_PHY_DEV_TYPES; i++) {
901 if ((oui == PHY_DEVICES[i].phyIdOUI) &&
902 (model == PHY_DEVICES[i].phyIdModel)) {
903 netdev_info(qdev->ndev, "Phy: %s\n",
904 PHY_DEVICES[i].name);
905 result = PHY_DEVICES[i].phyDevice;
906 break;
907 }
908 }
909
910 return result;
911 }
912
913 static int ql_phy_get_speed(struct ql3_adapter *qdev)
914 {
915 u16 reg;
916
917 switch (qdev->phyType) {
918 case PHY_AGERE_ET1011C: {
919 if (ql_mii_read_reg(qdev, 0x1A, &reg) < 0)
920 return 0;
921
922 reg = (reg >> 8) & 3;
923 break;
924 }
925 default:
926 if (ql_mii_read_reg(qdev, AUX_CONTROL_STATUS, &reg) < 0)
927 return 0;
928
929 reg = (((reg & 0x18) >> 3) & 3);
930 }
931
932 switch (reg) {
933 case 2:
934 return SPEED_1000;
935 case 1:
936 return SPEED_100;
937 case 0:
938 return SPEED_10;
939 default:
940 return -1;
941 }
942 }
943
944 static int ql_is_full_dup(struct ql3_adapter *qdev)
945 {
946 u16 reg;
947
948 switch (qdev->phyType) {
949 case PHY_AGERE_ET1011C: {
950 if (ql_mii_read_reg(qdev, 0x1A, &reg))
951 return 0;
952
953 return ((reg & 0x0080) && (reg & 0x1000)) != 0;
954 }
955 case PHY_VITESSE_VSC8211:
956 default: {
957 if (ql_mii_read_reg(qdev, AUX_CONTROL_STATUS, &reg) < 0)
958 return 0;
959 return (reg & PHY_AUX_DUPLEX_STAT) != 0;
960 }
961 }
962 }
963
964 static int ql_is_phy_neg_pause(struct ql3_adapter *qdev)
965 {
966 u16 reg;
967
968 if (ql_mii_read_reg(qdev, PHY_NEG_PARTNER, &reg) < 0)
969 return 0;
970
971 return (reg & PHY_NEG_PAUSE) != 0;
972 }
973
974 static int PHY_Setup(struct ql3_adapter *qdev)
975 {
976 u16 reg1;
977 u16 reg2;
978 bool agereAddrChangeNeeded = false;
979 u32 miiAddr = 0;
980 int err;
981
982 /* Determine the PHY we are using by reading the ID's */
983 err = ql_mii_read_reg(qdev, PHY_ID_0_REG, &reg1);
984 if (err != 0) {
985 netdev_err(qdev->ndev, "Could not read from reg PHY_ID_0_REG\n");
986 return err;
987 }
988
989 err = ql_mii_read_reg(qdev, PHY_ID_1_REG, &reg2);
990 if (err != 0) {
991 netdev_err(qdev->ndev, "Could not read from reg PHY_ID_1_REG\n");
992 return err;
993 }
994
995 /* Check if we have a Agere PHY */
996 if ((reg1 == 0xffff) || (reg2 == 0xffff)) {
997
998 /* Determine which MII address we should be using
999 determined by the index of the card */
1000 if (qdev->mac_index == 0)
1001 miiAddr = MII_AGERE_ADDR_1;
1002 else
1003 miiAddr = MII_AGERE_ADDR_2;
1004
1005 err = ql_mii_read_reg_ex(qdev, PHY_ID_0_REG, &reg1, miiAddr);
1006 if (err != 0) {
1007 netdev_err(qdev->ndev,
1008 "Could not read from reg PHY_ID_0_REG after Agere detected\n");
1009 return err;
1010 }
1011
1012 err = ql_mii_read_reg_ex(qdev, PHY_ID_1_REG, &reg2, miiAddr);
1013 if (err != 0) {
1014 netdev_err(qdev->ndev, "Could not read from reg PHY_ID_1_REG after Agere detected\n");
1015 return err;
1016 }
1017
1018 /* We need to remember to initialize the Agere PHY */
1019 agereAddrChangeNeeded = true;
1020 }
1021
1022 /* Determine the particular PHY we have on board to apply
1023 PHY specific initializations */
1024 qdev->phyType = getPhyType(qdev, reg1, reg2);
1025
1026 if ((qdev->phyType == PHY_AGERE_ET1011C) && agereAddrChangeNeeded) {
1027 /* need this here so address gets changed */
1028 phyAgereSpecificInit(qdev, miiAddr);
1029 } else if (qdev->phyType == PHY_TYPE_UNKNOWN) {
1030 netdev_err(qdev->ndev, "PHY is unknown\n");
1031 return -EIO;
1032 }
1033
1034 return 0;
1035 }
1036
1037 /*
1038 * Caller holds hw_lock.
1039 */
1040 static void ql_mac_enable(struct ql3_adapter *qdev, u32 enable)
1041 {
1042 struct ql3xxx_port_registers __iomem *port_regs =
1043 qdev->mem_map_registers;
1044 u32 value;
1045
1046 if (enable)
1047 value = (MAC_CONFIG_REG_PE | (MAC_CONFIG_REG_PE << 16));
1048 else
1049 value = (MAC_CONFIG_REG_PE << 16);
1050
1051 if (qdev->mac_index)
1052 ql_write_page0_reg(qdev, &port_regs->mac1ConfigReg, value);
1053 else
1054 ql_write_page0_reg(qdev, &port_regs->mac0ConfigReg, value);
1055 }
1056
1057 /*
1058 * Caller holds hw_lock.
1059 */
1060 static void ql_mac_cfg_soft_reset(struct ql3_adapter *qdev, u32 enable)
1061 {
1062 struct ql3xxx_port_registers __iomem *port_regs =
1063 qdev->mem_map_registers;
1064 u32 value;
1065
1066 if (enable)
1067 value = (MAC_CONFIG_REG_SR | (MAC_CONFIG_REG_SR << 16));
1068 else
1069 value = (MAC_CONFIG_REG_SR << 16);
1070
1071 if (qdev->mac_index)
1072 ql_write_page0_reg(qdev, &port_regs->mac1ConfigReg, value);
1073 else
1074 ql_write_page0_reg(qdev, &port_regs->mac0ConfigReg, value);
1075 }
1076
1077 /*
1078 * Caller holds hw_lock.
1079 */
1080 static void ql_mac_cfg_gig(struct ql3_adapter *qdev, u32 enable)
1081 {
1082 struct ql3xxx_port_registers __iomem *port_regs =
1083 qdev->mem_map_registers;
1084 u32 value;
1085
1086 if (enable)
1087 value = (MAC_CONFIG_REG_GM | (MAC_CONFIG_REG_GM << 16));
1088 else
1089 value = (MAC_CONFIG_REG_GM << 16);
1090
1091 if (qdev->mac_index)
1092 ql_write_page0_reg(qdev, &port_regs->mac1ConfigReg, value);
1093 else
1094 ql_write_page0_reg(qdev, &port_regs->mac0ConfigReg, value);
1095 }
1096
1097 /*
1098 * Caller holds hw_lock.
1099 */
1100 static void ql_mac_cfg_full_dup(struct ql3_adapter *qdev, u32 enable)
1101 {
1102 struct ql3xxx_port_registers __iomem *port_regs =
1103 qdev->mem_map_registers;
1104 u32 value;
1105
1106 if (enable)
1107 value = (MAC_CONFIG_REG_FD | (MAC_CONFIG_REG_FD << 16));
1108 else
1109 value = (MAC_CONFIG_REG_FD << 16);
1110
1111 if (qdev->mac_index)
1112 ql_write_page0_reg(qdev, &port_regs->mac1ConfigReg, value);
1113 else
1114 ql_write_page0_reg(qdev, &port_regs->mac0ConfigReg, value);
1115 }
1116
1117 /*
1118 * Caller holds hw_lock.
1119 */
1120 static void ql_mac_cfg_pause(struct ql3_adapter *qdev, u32 enable)
1121 {
1122 struct ql3xxx_port_registers __iomem *port_regs =
1123 qdev->mem_map_registers;
1124 u32 value;
1125
1126 if (enable)
1127 value =
1128 ((MAC_CONFIG_REG_TF | MAC_CONFIG_REG_RF) |
1129 ((MAC_CONFIG_REG_TF | MAC_CONFIG_REG_RF) << 16));
1130 else
1131 value = ((MAC_CONFIG_REG_TF | MAC_CONFIG_REG_RF) << 16);
1132
1133 if (qdev->mac_index)
1134 ql_write_page0_reg(qdev, &port_regs->mac1ConfigReg, value);
1135 else
1136 ql_write_page0_reg(qdev, &port_regs->mac0ConfigReg, value);
1137 }
1138
1139 /*
1140 * Caller holds hw_lock.
1141 */
1142 static int ql_is_fiber(struct ql3_adapter *qdev)
1143 {
1144 struct ql3xxx_port_registers __iomem *port_regs =
1145 qdev->mem_map_registers;
1146 u32 bitToCheck = 0;
1147 u32 temp;
1148
1149 switch (qdev->mac_index) {
1150 case 0:
1151 bitToCheck = PORT_STATUS_SM0;
1152 break;
1153 case 1:
1154 bitToCheck = PORT_STATUS_SM1;
1155 break;
1156 }
1157
1158 temp = ql_read_page0_reg(qdev, &port_regs->portStatus);
1159 return (temp & bitToCheck) != 0;
1160 }
1161
1162 static int ql_is_auto_cfg(struct ql3_adapter *qdev)
1163 {
1164 u16 reg;
1165 ql_mii_read_reg(qdev, 0x00, &reg);
1166 return (reg & 0x1000) != 0;
1167 }
1168
1169 /*
1170 * Caller holds hw_lock.
1171 */
1172 static int ql_is_auto_neg_complete(struct ql3_adapter *qdev)
1173 {
1174 struct ql3xxx_port_registers __iomem *port_regs =
1175 qdev->mem_map_registers;
1176 u32 bitToCheck = 0;
1177 u32 temp;
1178
1179 switch (qdev->mac_index) {
1180 case 0:
1181 bitToCheck = PORT_STATUS_AC0;
1182 break;
1183 case 1:
1184 bitToCheck = PORT_STATUS_AC1;
1185 break;
1186 }
1187
1188 temp = ql_read_page0_reg(qdev, &port_regs->portStatus);
1189 if (temp & bitToCheck) {
1190 netif_info(qdev, link, qdev->ndev, "Auto-Negotiate complete\n");
1191 return 1;
1192 }
1193 netif_info(qdev, link, qdev->ndev, "Auto-Negotiate incomplete\n");
1194 return 0;
1195 }
1196
1197 /*
1198 * ql_is_neg_pause() returns 1 if pause was negotiated to be on
1199 */
1200 static int ql_is_neg_pause(struct ql3_adapter *qdev)
1201 {
1202 if (ql_is_fiber(qdev))
1203 return ql_is_petbi_neg_pause(qdev);
1204 else
1205 return ql_is_phy_neg_pause(qdev);
1206 }
1207
1208 static int ql_auto_neg_error(struct ql3_adapter *qdev)
1209 {
1210 struct ql3xxx_port_registers __iomem *port_regs =
1211 qdev->mem_map_registers;
1212 u32 bitToCheck = 0;
1213 u32 temp;
1214
1215 switch (qdev->mac_index) {
1216 case 0:
1217 bitToCheck = PORT_STATUS_AE0;
1218 break;
1219 case 1:
1220 bitToCheck = PORT_STATUS_AE1;
1221 break;
1222 }
1223 temp = ql_read_page0_reg(qdev, &port_regs->portStatus);
1224 return (temp & bitToCheck) != 0;
1225 }
1226
1227 static u32 ql_get_link_speed(struct ql3_adapter *qdev)
1228 {
1229 if (ql_is_fiber(qdev))
1230 return SPEED_1000;
1231 else
1232 return ql_phy_get_speed(qdev);
1233 }
1234
1235 static int ql_is_link_full_dup(struct ql3_adapter *qdev)
1236 {
1237 if (ql_is_fiber(qdev))
1238 return 1;
1239 else
1240 return ql_is_full_dup(qdev);
1241 }
1242
1243 /*
1244 * Caller holds hw_lock.
1245 */
1246 static int ql_link_down_detect(struct ql3_adapter *qdev)
1247 {
1248 struct ql3xxx_port_registers __iomem *port_regs =
1249 qdev->mem_map_registers;
1250 u32 bitToCheck = 0;
1251 u32 temp;
1252
1253 switch (qdev->mac_index) {
1254 case 0:
1255 bitToCheck = ISP_CONTROL_LINK_DN_0;
1256 break;
1257 case 1:
1258 bitToCheck = ISP_CONTROL_LINK_DN_1;
1259 break;
1260 }
1261
1262 temp =
1263 ql_read_common_reg(qdev, &port_regs->CommonRegs.ispControlStatus);
1264 return (temp & bitToCheck) != 0;
1265 }
1266
1267 /*
1268 * Caller holds hw_lock.
1269 */
1270 static int ql_link_down_detect_clear(struct ql3_adapter *qdev)
1271 {
1272 struct ql3xxx_port_registers __iomem *port_regs =
1273 qdev->mem_map_registers;
1274
1275 switch (qdev->mac_index) {
1276 case 0:
1277 ql_write_common_reg(qdev,
1278 &port_regs->CommonRegs.ispControlStatus,
1279 (ISP_CONTROL_LINK_DN_0) |
1280 (ISP_CONTROL_LINK_DN_0 << 16));
1281 break;
1282
1283 case 1:
1284 ql_write_common_reg(qdev,
1285 &port_regs->CommonRegs.ispControlStatus,
1286 (ISP_CONTROL_LINK_DN_1) |
1287 (ISP_CONTROL_LINK_DN_1 << 16));
1288 break;
1289
1290 default:
1291 return 1;
1292 }
1293
1294 return 0;
1295 }
1296
1297 /*
1298 * Caller holds hw_lock.
1299 */
1300 static int ql_this_adapter_controls_port(struct ql3_adapter *qdev)
1301 {
1302 struct ql3xxx_port_registers __iomem *port_regs =
1303 qdev->mem_map_registers;
1304 u32 bitToCheck = 0;
1305 u32 temp;
1306
1307 switch (qdev->mac_index) {
1308 case 0:
1309 bitToCheck = PORT_STATUS_F1_ENABLED;
1310 break;
1311 case 1:
1312 bitToCheck = PORT_STATUS_F3_ENABLED;
1313 break;
1314 default:
1315 break;
1316 }
1317
1318 temp = ql_read_page0_reg(qdev, &port_regs->portStatus);
1319 if (temp & bitToCheck) {
1320 netif_printk(qdev, link, KERN_DEBUG, qdev->ndev,
1321 "not link master\n");
1322 return 0;
1323 }
1324
1325 netif_printk(qdev, link, KERN_DEBUG, qdev->ndev, "link master\n");
1326 return 1;
1327 }
1328
1329 static void ql_phy_reset_ex(struct ql3_adapter *qdev)
1330 {
1331 ql_mii_write_reg_ex(qdev, CONTROL_REG, PHY_CTRL_SOFT_RESET,
1332 PHYAddr[qdev->mac_index]);
1333 }
1334
1335 static void ql_phy_start_neg_ex(struct ql3_adapter *qdev)
1336 {
1337 u16 reg;
1338 u16 portConfiguration;
1339
1340 if (qdev->phyType == PHY_AGERE_ET1011C)
1341 ql_mii_write_reg(qdev, 0x13, 0x0000);
1342 /* turn off external loopback */
1343
1344 if (qdev->mac_index == 0)
1345 portConfiguration =
1346 qdev->nvram_data.macCfg_port0.portConfiguration;
1347 else
1348 portConfiguration =
1349 qdev->nvram_data.macCfg_port1.portConfiguration;
1350
1351 /* Some HBA's in the field are set to 0 and they need to
1352 be reinterpreted with a default value */
1353 if (portConfiguration == 0)
1354 portConfiguration = PORT_CONFIG_DEFAULT;
1355
1356 /* Set the 1000 advertisements */
1357 ql_mii_read_reg_ex(qdev, PHY_GIG_CONTROL, &reg,
1358 PHYAddr[qdev->mac_index]);
1359 reg &= ~PHY_GIG_ALL_PARAMS;
1360
1361 if (portConfiguration & PORT_CONFIG_1000MB_SPEED) {
1362 if (portConfiguration & PORT_CONFIG_FULL_DUPLEX_ENABLED)
1363 reg |= PHY_GIG_ADV_1000F;
1364 else
1365 reg |= PHY_GIG_ADV_1000H;
1366 }
1367
1368 ql_mii_write_reg_ex(qdev, PHY_GIG_CONTROL, reg,
1369 PHYAddr[qdev->mac_index]);
1370
1371 /* Set the 10/100 & pause negotiation advertisements */
1372 ql_mii_read_reg_ex(qdev, PHY_NEG_ADVER, &reg,
1373 PHYAddr[qdev->mac_index]);
1374 reg &= ~PHY_NEG_ALL_PARAMS;
1375
1376 if (portConfiguration & PORT_CONFIG_SYM_PAUSE_ENABLED)
1377 reg |= PHY_NEG_ASY_PAUSE | PHY_NEG_SYM_PAUSE;
1378
1379 if (portConfiguration & PORT_CONFIG_FULL_DUPLEX_ENABLED) {
1380 if (portConfiguration & PORT_CONFIG_100MB_SPEED)
1381 reg |= PHY_NEG_ADV_100F;
1382
1383 if (portConfiguration & PORT_CONFIG_10MB_SPEED)
1384 reg |= PHY_NEG_ADV_10F;
1385 }
1386
1387 if (portConfiguration & PORT_CONFIG_HALF_DUPLEX_ENABLED) {
1388 if (portConfiguration & PORT_CONFIG_100MB_SPEED)
1389 reg |= PHY_NEG_ADV_100H;
1390
1391 if (portConfiguration & PORT_CONFIG_10MB_SPEED)
1392 reg |= PHY_NEG_ADV_10H;
1393 }
1394
1395 if (portConfiguration & PORT_CONFIG_1000MB_SPEED)
1396 reg |= 1;
1397
1398 ql_mii_write_reg_ex(qdev, PHY_NEG_ADVER, reg,
1399 PHYAddr[qdev->mac_index]);
1400
1401 ql_mii_read_reg_ex(qdev, CONTROL_REG, &reg, PHYAddr[qdev->mac_index]);
1402
1403 ql_mii_write_reg_ex(qdev, CONTROL_REG,
1404 reg | PHY_CTRL_RESTART_NEG | PHY_CTRL_AUTO_NEG,
1405 PHYAddr[qdev->mac_index]);
1406 }
1407
1408 static void ql_phy_init_ex(struct ql3_adapter *qdev)
1409 {
1410 ql_phy_reset_ex(qdev);
1411 PHY_Setup(qdev);
1412 ql_phy_start_neg_ex(qdev);
1413 }
1414
1415 /*
1416 * Caller holds hw_lock.
1417 */
1418 static u32 ql_get_link_state(struct ql3_adapter *qdev)
1419 {
1420 struct ql3xxx_port_registers __iomem *port_regs =
1421 qdev->mem_map_registers;
1422 u32 bitToCheck = 0;
1423 u32 temp, linkState;
1424
1425 switch (qdev->mac_index) {
1426 case 0:
1427 bitToCheck = PORT_STATUS_UP0;
1428 break;
1429 case 1:
1430 bitToCheck = PORT_STATUS_UP1;
1431 break;
1432 }
1433
1434 temp = ql_read_page0_reg(qdev, &port_regs->portStatus);
1435 if (temp & bitToCheck)
1436 linkState = LS_UP;
1437 else
1438 linkState = LS_DOWN;
1439
1440 return linkState;
1441 }
1442
1443 static int ql_port_start(struct ql3_adapter *qdev)
1444 {
1445 if (ql_sem_spinlock(qdev, QL_PHY_GIO_SEM_MASK,
1446 (QL_RESOURCE_BITS_BASE_CODE | (qdev->mac_index) *
1447 2) << 7)) {
1448 netdev_err(qdev->ndev, "Could not get hw lock for GIO\n");
1449 return -1;
1450 }
1451
1452 if (ql_is_fiber(qdev)) {
1453 ql_petbi_init(qdev);
1454 } else {
1455 /* Copper port */
1456 ql_phy_init_ex(qdev);
1457 }
1458
1459 ql_sem_unlock(qdev, QL_PHY_GIO_SEM_MASK);
1460 return 0;
1461 }
1462
1463 static int ql_finish_auto_neg(struct ql3_adapter *qdev)
1464 {
1465
1466 if (ql_sem_spinlock(qdev, QL_PHY_GIO_SEM_MASK,
1467 (QL_RESOURCE_BITS_BASE_CODE | (qdev->mac_index) *
1468 2) << 7))
1469 return -1;
1470
1471 if (!ql_auto_neg_error(qdev)) {
1472 if (test_bit(QL_LINK_MASTER, &qdev->flags)) {
1473 /* configure the MAC */
1474 netif_printk(qdev, link, KERN_DEBUG, qdev->ndev,
1475 "Configuring link\n");
1476 ql_mac_cfg_soft_reset(qdev, 1);
1477 ql_mac_cfg_gig(qdev,
1478 (ql_get_link_speed
1479 (qdev) ==
1480 SPEED_1000));
1481 ql_mac_cfg_full_dup(qdev,
1482 ql_is_link_full_dup
1483 (qdev));
1484 ql_mac_cfg_pause(qdev,
1485 ql_is_neg_pause
1486 (qdev));
1487 ql_mac_cfg_soft_reset(qdev, 0);
1488
1489 /* enable the MAC */
1490 netif_printk(qdev, link, KERN_DEBUG, qdev->ndev,
1491 "Enabling mac\n");
1492 ql_mac_enable(qdev, 1);
1493 }
1494
1495 qdev->port_link_state = LS_UP;
1496 netif_start_queue(qdev->ndev);
1497 netif_carrier_on(qdev->ndev);
1498 netif_info(qdev, link, qdev->ndev,
1499 "Link is up at %d Mbps, %s duplex\n",
1500 ql_get_link_speed(qdev),
1501 ql_is_link_full_dup(qdev) ? "full" : "half");
1502
1503 } else { /* Remote error detected */
1504
1505 if (test_bit(QL_LINK_MASTER, &qdev->flags)) {
1506 netif_printk(qdev, link, KERN_DEBUG, qdev->ndev,
1507 "Remote error detected. Calling ql_port_start()\n");
1508 /*
1509 * ql_port_start() is shared code and needs
1510 * to lock the PHY on it's own.
1511 */
1512 ql_sem_unlock(qdev, QL_PHY_GIO_SEM_MASK);
1513 if (ql_port_start(qdev)) /* Restart port */
1514 return -1;
1515 return 0;
1516 }
1517 }
1518 ql_sem_unlock(qdev, QL_PHY_GIO_SEM_MASK);
1519 return 0;
1520 }
1521
1522 static void ql_link_state_machine_work(struct work_struct *work)
1523 {
1524 struct ql3_adapter *qdev =
1525 container_of(work, struct ql3_adapter, link_state_work.work);
1526
1527 u32 curr_link_state;
1528 unsigned long hw_flags;
1529
1530 spin_lock_irqsave(&qdev->hw_lock, hw_flags);
1531
1532 curr_link_state = ql_get_link_state(qdev);
1533
1534 if (test_bit(QL_RESET_ACTIVE, &qdev->flags)) {
1535 netif_info(qdev, link, qdev->ndev,
1536 "Reset in progress, skip processing link state\n");
1537
1538 spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
1539
1540 /* Restart timer on 2 second interval. */
1541 mod_timer(&qdev->adapter_timer, jiffies + HZ * 1);
1542
1543 return;
1544 }
1545
1546 switch (qdev->port_link_state) {
1547 default:
1548 if (test_bit(QL_LINK_MASTER, &qdev->flags))
1549 ql_port_start(qdev);
1550 qdev->port_link_state = LS_DOWN;
1551 /* Fall Through */
1552
1553 case LS_DOWN:
1554 if (curr_link_state == LS_UP) {
1555 netif_info(qdev, link, qdev->ndev, "Link is up\n");
1556 if (ql_is_auto_neg_complete(qdev))
1557 ql_finish_auto_neg(qdev);
1558
1559 if (qdev->port_link_state == LS_UP)
1560 ql_link_down_detect_clear(qdev);
1561
1562 qdev->port_link_state = LS_UP;
1563 }
1564 break;
1565
1566 case LS_UP:
1567 /*
1568 * See if the link is currently down or went down and came
1569 * back up
1570 */
1571 if (curr_link_state == LS_DOWN) {
1572 netif_info(qdev, link, qdev->ndev, "Link is down\n");
1573 qdev->port_link_state = LS_DOWN;
1574 }
1575 if (ql_link_down_detect(qdev))
1576 qdev->port_link_state = LS_DOWN;
1577 break;
1578 }
1579 spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
1580
1581 /* Restart timer on 2 second interval. */
1582 mod_timer(&qdev->adapter_timer, jiffies + HZ * 1);
1583 }
1584
1585 /*
1586 * Caller must take hw_lock and QL_PHY_GIO_SEM.
1587 */
1588 static void ql_get_phy_owner(struct ql3_adapter *qdev)
1589 {
1590 if (ql_this_adapter_controls_port(qdev))
1591 set_bit(QL_LINK_MASTER, &qdev->flags);
1592 else
1593 clear_bit(QL_LINK_MASTER, &qdev->flags);
1594 }
1595
1596 /*
1597 * Caller must take hw_lock and QL_PHY_GIO_SEM.
1598 */
1599 static void ql_init_scan_mode(struct ql3_adapter *qdev)
1600 {
1601 ql_mii_enable_scan_mode(qdev);
1602
1603 if (test_bit(QL_LINK_OPTICAL, &qdev->flags)) {
1604 if (ql_this_adapter_controls_port(qdev))
1605 ql_petbi_init_ex(qdev);
1606 } else {
1607 if (ql_this_adapter_controls_port(qdev))
1608 ql_phy_init_ex(qdev);
1609 }
1610 }
1611
1612 /*
1613 * MII_Setup needs to be called before taking the PHY out of reset
1614 * so that the management interface clock speed can be set properly.
1615 * It would be better if we had a way to disable MDC until after the
1616 * PHY is out of reset, but we don't have that capability.
1617 */
1618 static int ql_mii_setup(struct ql3_adapter *qdev)
1619 {
1620 u32 reg;
1621 struct ql3xxx_port_registers __iomem *port_regs =
1622 qdev->mem_map_registers;
1623
1624 if (ql_sem_spinlock(qdev, QL_PHY_GIO_SEM_MASK,
1625 (QL_RESOURCE_BITS_BASE_CODE | (qdev->mac_index) *
1626 2) << 7))
1627 return -1;
1628
1629 if (qdev->device_id == QL3032_DEVICE_ID)
1630 ql_write_page0_reg(qdev,
1631 &port_regs->macMIIMgmtControlReg, 0x0f00000);
1632
1633 /* Divide 125MHz clock by 28 to meet PHY timing requirements */
1634 reg = MAC_MII_CONTROL_CLK_SEL_DIV28;
1635
1636 ql_write_page0_reg(qdev, &port_regs->macMIIMgmtControlReg,
1637 reg | ((MAC_MII_CONTROL_CLK_SEL_MASK) << 16));
1638
1639 ql_sem_unlock(qdev, QL_PHY_GIO_SEM_MASK);
1640 return 0;
1641 }
1642
1643 #define SUPPORTED_OPTICAL_MODES (SUPPORTED_1000baseT_Full | \
1644 SUPPORTED_FIBRE | \
1645 SUPPORTED_Autoneg)
1646 #define SUPPORTED_TP_MODES (SUPPORTED_10baseT_Half | \
1647 SUPPORTED_10baseT_Full | \
1648 SUPPORTED_100baseT_Half | \
1649 SUPPORTED_100baseT_Full | \
1650 SUPPORTED_1000baseT_Half | \
1651 SUPPORTED_1000baseT_Full | \
1652 SUPPORTED_Autoneg | \
1653 SUPPORTED_TP); \
1654
1655 static u32 ql_supported_modes(struct ql3_adapter *qdev)
1656 {
1657 if (test_bit(QL_LINK_OPTICAL, &qdev->flags))
1658 return SUPPORTED_OPTICAL_MODES;
1659
1660 return SUPPORTED_TP_MODES;
1661 }
1662
1663 static int ql_get_auto_cfg_status(struct ql3_adapter *qdev)
1664 {
1665 int status;
1666 unsigned long hw_flags;
1667 spin_lock_irqsave(&qdev->hw_lock, hw_flags);
1668 if (ql_sem_spinlock(qdev, QL_PHY_GIO_SEM_MASK,
1669 (QL_RESOURCE_BITS_BASE_CODE |
1670 (qdev->mac_index) * 2) << 7)) {
1671 spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
1672 return 0;
1673 }
1674 status = ql_is_auto_cfg(qdev);
1675 ql_sem_unlock(qdev, QL_PHY_GIO_SEM_MASK);
1676 spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
1677 return status;
1678 }
1679
1680 static u32 ql_get_speed(struct ql3_adapter *qdev)
1681 {
1682 u32 status;
1683 unsigned long hw_flags;
1684 spin_lock_irqsave(&qdev->hw_lock, hw_flags);
1685 if (ql_sem_spinlock(qdev, QL_PHY_GIO_SEM_MASK,
1686 (QL_RESOURCE_BITS_BASE_CODE |
1687 (qdev->mac_index) * 2) << 7)) {
1688 spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
1689 return 0;
1690 }
1691 status = ql_get_link_speed(qdev);
1692 ql_sem_unlock(qdev, QL_PHY_GIO_SEM_MASK);
1693 spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
1694 return status;
1695 }
1696
1697 static int ql_get_full_dup(struct ql3_adapter *qdev)
1698 {
1699 int status;
1700 unsigned long hw_flags;
1701 spin_lock_irqsave(&qdev->hw_lock, hw_flags);
1702 if (ql_sem_spinlock(qdev, QL_PHY_GIO_SEM_MASK,
1703 (QL_RESOURCE_BITS_BASE_CODE |
1704 (qdev->mac_index) * 2) << 7)) {
1705 spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
1706 return 0;
1707 }
1708 status = ql_is_link_full_dup(qdev);
1709 ql_sem_unlock(qdev, QL_PHY_GIO_SEM_MASK);
1710 spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
1711 return status;
1712 }
1713
1714 static int ql_get_settings(struct net_device *ndev, struct ethtool_cmd *ecmd)
1715 {
1716 struct ql3_adapter *qdev = netdev_priv(ndev);
1717
1718 ecmd->transceiver = XCVR_INTERNAL;
1719 ecmd->supported = ql_supported_modes(qdev);
1720
1721 if (test_bit(QL_LINK_OPTICAL, &qdev->flags)) {
1722 ecmd->port = PORT_FIBRE;
1723 } else {
1724 ecmd->port = PORT_TP;
1725 ecmd->phy_address = qdev->PHYAddr;
1726 }
1727 ecmd->advertising = ql_supported_modes(qdev);
1728 ecmd->autoneg = ql_get_auto_cfg_status(qdev);
1729 ethtool_cmd_speed_set(ecmd, ql_get_speed(qdev));
1730 ecmd->duplex = ql_get_full_dup(qdev);
1731 return 0;
1732 }
1733
1734 static void ql_get_drvinfo(struct net_device *ndev,
1735 struct ethtool_drvinfo *drvinfo)
1736 {
1737 struct ql3_adapter *qdev = netdev_priv(ndev);
1738 strncpy(drvinfo->driver, ql3xxx_driver_name, 32);
1739 strncpy(drvinfo->version, ql3xxx_driver_version, 32);
1740 strncpy(drvinfo->fw_version, "N/A", 32);
1741 strncpy(drvinfo->bus_info, pci_name(qdev->pdev), 32);
1742 drvinfo->regdump_len = 0;
1743 drvinfo->eedump_len = 0;
1744 }
1745
1746 static u32 ql_get_msglevel(struct net_device *ndev)
1747 {
1748 struct ql3_adapter *qdev = netdev_priv(ndev);
1749 return qdev->msg_enable;
1750 }
1751
1752 static void ql_set_msglevel(struct net_device *ndev, u32 value)
1753 {
1754 struct ql3_adapter *qdev = netdev_priv(ndev);
1755 qdev->msg_enable = value;
1756 }
1757
1758 static void ql_get_pauseparam(struct net_device *ndev,
1759 struct ethtool_pauseparam *pause)
1760 {
1761 struct ql3_adapter *qdev = netdev_priv(ndev);
1762 struct ql3xxx_port_registers __iomem *port_regs =
1763 qdev->mem_map_registers;
1764
1765 u32 reg;
1766 if (qdev->mac_index == 0)
1767 reg = ql_read_page0_reg(qdev, &port_regs->mac0ConfigReg);
1768 else
1769 reg = ql_read_page0_reg(qdev, &port_regs->mac1ConfigReg);
1770
1771 pause->autoneg = ql_get_auto_cfg_status(qdev);
1772 pause->rx_pause = (reg & MAC_CONFIG_REG_RF) >> 2;
1773 pause->tx_pause = (reg & MAC_CONFIG_REG_TF) >> 1;
1774 }
1775
1776 static const struct ethtool_ops ql3xxx_ethtool_ops = {
1777 .get_settings = ql_get_settings,
1778 .get_drvinfo = ql_get_drvinfo,
1779 .get_link = ethtool_op_get_link,
1780 .get_msglevel = ql_get_msglevel,
1781 .set_msglevel = ql_set_msglevel,
1782 .get_pauseparam = ql_get_pauseparam,
1783 };
1784
1785 static int ql_populate_free_queue(struct ql3_adapter *qdev)
1786 {
1787 struct ql_rcv_buf_cb *lrg_buf_cb = qdev->lrg_buf_free_head;
1788 dma_addr_t map;
1789 int err;
1790
1791 while (lrg_buf_cb) {
1792 if (!lrg_buf_cb->skb) {
1793 lrg_buf_cb->skb =
1794 netdev_alloc_skb(qdev->ndev,
1795 qdev->lrg_buffer_len);
1796 if (unlikely(!lrg_buf_cb->skb)) {
1797 netdev_printk(KERN_DEBUG, qdev->ndev,
1798 "Failed netdev_alloc_skb()\n");
1799 break;
1800 } else {
1801 /*
1802 * We save some space to copy the ethhdr from
1803 * first buffer
1804 */
1805 skb_reserve(lrg_buf_cb->skb, QL_HEADER_SPACE);
1806 map = pci_map_single(qdev->pdev,
1807 lrg_buf_cb->skb->data,
1808 qdev->lrg_buffer_len -
1809 QL_HEADER_SPACE,
1810 PCI_DMA_FROMDEVICE);
1811
1812 err = pci_dma_mapping_error(qdev->pdev, map);
1813 if (err) {
1814 netdev_err(qdev->ndev,
1815 "PCI mapping failed with error: %d\n",
1816 err);
1817 dev_kfree_skb(lrg_buf_cb->skb);
1818 lrg_buf_cb->skb = NULL;
1819 break;
1820 }
1821
1822
1823 lrg_buf_cb->buf_phy_addr_low =
1824 cpu_to_le32(LS_64BITS(map));
1825 lrg_buf_cb->buf_phy_addr_high =
1826 cpu_to_le32(MS_64BITS(map));
1827 dma_unmap_addr_set(lrg_buf_cb, mapaddr, map);
1828 dma_unmap_len_set(lrg_buf_cb, maplen,
1829 qdev->lrg_buffer_len -
1830 QL_HEADER_SPACE);
1831 --qdev->lrg_buf_skb_check;
1832 if (!qdev->lrg_buf_skb_check)
1833 return 1;
1834 }
1835 }
1836 lrg_buf_cb = lrg_buf_cb->next;
1837 }
1838 return 0;
1839 }
1840
1841 /*
1842 * Caller holds hw_lock.
1843 */
1844 static void ql_update_small_bufq_prod_index(struct ql3_adapter *qdev)
1845 {
1846 struct ql3xxx_port_registers __iomem *port_regs =
1847 qdev->mem_map_registers;
1848
1849 if (qdev->small_buf_release_cnt >= 16) {
1850 while (qdev->small_buf_release_cnt >= 16) {
1851 qdev->small_buf_q_producer_index++;
1852
1853 if (qdev->small_buf_q_producer_index ==
1854 NUM_SBUFQ_ENTRIES)
1855 qdev->small_buf_q_producer_index = 0;
1856 qdev->small_buf_release_cnt -= 8;
1857 }
1858 wmb();
1859 writel(qdev->small_buf_q_producer_index,
1860 &port_regs->CommonRegs.rxSmallQProducerIndex);
1861 }
1862 }
1863
1864 /*
1865 * Caller holds hw_lock.
1866 */
1867 static void ql_update_lrg_bufq_prod_index(struct ql3_adapter *qdev)
1868 {
1869 struct bufq_addr_element *lrg_buf_q_ele;
1870 int i;
1871 struct ql_rcv_buf_cb *lrg_buf_cb;
1872 struct ql3xxx_port_registers __iomem *port_regs =
1873 qdev->mem_map_registers;
1874
1875 if ((qdev->lrg_buf_free_count >= 8) &&
1876 (qdev->lrg_buf_release_cnt >= 16)) {
1877
1878 if (qdev->lrg_buf_skb_check)
1879 if (!ql_populate_free_queue(qdev))
1880 return;
1881
1882 lrg_buf_q_ele = qdev->lrg_buf_next_free;
1883
1884 while ((qdev->lrg_buf_release_cnt >= 16) &&
1885 (qdev->lrg_buf_free_count >= 8)) {
1886
1887 for (i = 0; i < 8; i++) {
1888 lrg_buf_cb =
1889 ql_get_from_lrg_buf_free_list(qdev);
1890 lrg_buf_q_ele->addr_high =
1891 lrg_buf_cb->buf_phy_addr_high;
1892 lrg_buf_q_ele->addr_low =
1893 lrg_buf_cb->buf_phy_addr_low;
1894 lrg_buf_q_ele++;
1895
1896 qdev->lrg_buf_release_cnt--;
1897 }
1898
1899 qdev->lrg_buf_q_producer_index++;
1900
1901 if (qdev->lrg_buf_q_producer_index ==
1902 qdev->num_lbufq_entries)
1903 qdev->lrg_buf_q_producer_index = 0;
1904
1905 if (qdev->lrg_buf_q_producer_index ==
1906 (qdev->num_lbufq_entries - 1)) {
1907 lrg_buf_q_ele = qdev->lrg_buf_q_virt_addr;
1908 }
1909 }
1910 wmb();
1911 qdev->lrg_buf_next_free = lrg_buf_q_ele;
1912 writel(qdev->lrg_buf_q_producer_index,
1913 &port_regs->CommonRegs.rxLargeQProducerIndex);
1914 }
1915 }
1916
1917 static void ql_process_mac_tx_intr(struct ql3_adapter *qdev,
1918 struct ob_mac_iocb_rsp *mac_rsp)
1919 {
1920 struct ql_tx_buf_cb *tx_cb;
1921 int i;
1922 int retval = 0;
1923
1924 if (mac_rsp->flags & OB_MAC_IOCB_RSP_S) {
1925 netdev_warn(qdev->ndev,
1926 "Frame too short but it was padded and sent\n");
1927 }
1928
1929 tx_cb = &qdev->tx_buf[mac_rsp->transaction_id];
1930
1931 /* Check the transmit response flags for any errors */
1932 if (mac_rsp->flags & OB_MAC_IOCB_RSP_S) {
1933 netdev_err(qdev->ndev,
1934 "Frame too short to be legal, frame not sent\n");
1935
1936 qdev->ndev->stats.tx_errors++;
1937 retval = -EIO;
1938 goto frame_not_sent;
1939 }
1940
1941 if (tx_cb->seg_count == 0) {
1942 netdev_err(qdev->ndev, "tx_cb->seg_count == 0: %d\n",
1943 mac_rsp->transaction_id);
1944
1945 qdev->ndev->stats.tx_errors++;
1946 retval = -EIO;
1947 goto invalid_seg_count;
1948 }
1949
1950 pci_unmap_single(qdev->pdev,
1951 dma_unmap_addr(&tx_cb->map[0], mapaddr),
1952 dma_unmap_len(&tx_cb->map[0], maplen),
1953 PCI_DMA_TODEVICE);
1954 tx_cb->seg_count--;
1955 if (tx_cb->seg_count) {
1956 for (i = 1; i < tx_cb->seg_count; i++) {
1957 pci_unmap_page(qdev->pdev,
1958 dma_unmap_addr(&tx_cb->map[i],
1959 mapaddr),
1960 dma_unmap_len(&tx_cb->map[i], maplen),
1961 PCI_DMA_TODEVICE);
1962 }
1963 }
1964 qdev->ndev->stats.tx_packets++;
1965 qdev->ndev->stats.tx_bytes += tx_cb->skb->len;
1966
1967 frame_not_sent:
1968 dev_kfree_skb_irq(tx_cb->skb);
1969 tx_cb->skb = NULL;
1970
1971 invalid_seg_count:
1972 atomic_inc(&qdev->tx_count);
1973 }
1974
1975 static void ql_get_sbuf(struct ql3_adapter *qdev)
1976 {
1977 if (++qdev->small_buf_index == NUM_SMALL_BUFFERS)
1978 qdev->small_buf_index = 0;
1979 qdev->small_buf_release_cnt++;
1980 }
1981
1982 static struct ql_rcv_buf_cb *ql_get_lbuf(struct ql3_adapter *qdev)
1983 {
1984 struct ql_rcv_buf_cb *lrg_buf_cb = NULL;
1985 lrg_buf_cb = &qdev->lrg_buf[qdev->lrg_buf_index];
1986 qdev->lrg_buf_release_cnt++;
1987 if (++qdev->lrg_buf_index == qdev->num_large_buffers)
1988 qdev->lrg_buf_index = 0;
1989 return lrg_buf_cb;
1990 }
1991
1992 /*
1993 * The difference between 3022 and 3032 for inbound completions:
1994 * 3022 uses two buffers per completion. The first buffer contains
1995 * (some) header info, the second the remainder of the headers plus
1996 * the data. For this chip we reserve some space at the top of the
1997 * receive buffer so that the header info in buffer one can be
1998 * prepended to the buffer two. Buffer two is the sent up while
1999 * buffer one is returned to the hardware to be reused.
2000 * 3032 receives all of it's data and headers in one buffer for a
2001 * simpler process. 3032 also supports checksum verification as
2002 * can be seen in ql_process_macip_rx_intr().
2003 */
2004 static void ql_process_mac_rx_intr(struct ql3_adapter *qdev,
2005 struct ib_mac_iocb_rsp *ib_mac_rsp_ptr)
2006 {
2007 struct ql_rcv_buf_cb *lrg_buf_cb1 = NULL;
2008 struct ql_rcv_buf_cb *lrg_buf_cb2 = NULL;
2009 struct sk_buff *skb;
2010 u16 length = le16_to_cpu(ib_mac_rsp_ptr->length);
2011
2012 /*
2013 * Get the inbound address list (small buffer).
2014 */
2015 ql_get_sbuf(qdev);
2016
2017 if (qdev->device_id == QL3022_DEVICE_ID)
2018 lrg_buf_cb1 = ql_get_lbuf(qdev);
2019
2020 /* start of second buffer */
2021 lrg_buf_cb2 = ql_get_lbuf(qdev);
2022 skb = lrg_buf_cb2->skb;
2023
2024 qdev->ndev->stats.rx_packets++;
2025 qdev->ndev->stats.rx_bytes += length;
2026
2027 skb_put(skb, length);
2028 pci_unmap_single(qdev->pdev,
2029 dma_unmap_addr(lrg_buf_cb2, mapaddr),
2030 dma_unmap_len(lrg_buf_cb2, maplen),
2031 PCI_DMA_FROMDEVICE);
2032 prefetch(skb->data);
2033 skb_checksum_none_assert(skb);
2034 skb->protocol = eth_type_trans(skb, qdev->ndev);
2035
2036 netif_receive_skb(skb);
2037 lrg_buf_cb2->skb = NULL;
2038
2039 if (qdev->device_id == QL3022_DEVICE_ID)
2040 ql_release_to_lrg_buf_free_list(qdev, lrg_buf_cb1);
2041 ql_release_to_lrg_buf_free_list(qdev, lrg_buf_cb2);
2042 }
2043
2044 static void ql_process_macip_rx_intr(struct ql3_adapter *qdev,
2045 struct ib_ip_iocb_rsp *ib_ip_rsp_ptr)
2046 {
2047 struct ql_rcv_buf_cb *lrg_buf_cb1 = NULL;
2048 struct ql_rcv_buf_cb *lrg_buf_cb2 = NULL;
2049 struct sk_buff *skb1 = NULL, *skb2;
2050 struct net_device *ndev = qdev->ndev;
2051 u16 length = le16_to_cpu(ib_ip_rsp_ptr->length);
2052 u16 size = 0;
2053
2054 /*
2055 * Get the inbound address list (small buffer).
2056 */
2057
2058 ql_get_sbuf(qdev);
2059
2060 if (qdev->device_id == QL3022_DEVICE_ID) {
2061 /* start of first buffer on 3022 */
2062 lrg_buf_cb1 = ql_get_lbuf(qdev);
2063 skb1 = lrg_buf_cb1->skb;
2064 size = ETH_HLEN;
2065 if (*((u16 *) skb1->data) != 0xFFFF)
2066 size += VLAN_ETH_HLEN - ETH_HLEN;
2067 }
2068
2069 /* start of second buffer */
2070 lrg_buf_cb2 = ql_get_lbuf(qdev);
2071 skb2 = lrg_buf_cb2->skb;
2072
2073 skb_put(skb2, length); /* Just the second buffer length here. */
2074 pci_unmap_single(qdev->pdev,
2075 dma_unmap_addr(lrg_buf_cb2, mapaddr),
2076 dma_unmap_len(lrg_buf_cb2, maplen),
2077 PCI_DMA_FROMDEVICE);
2078 prefetch(skb2->data);
2079
2080 skb_checksum_none_assert(skb2);
2081 if (qdev->device_id == QL3022_DEVICE_ID) {
2082 /*
2083 * Copy the ethhdr from first buffer to second. This
2084 * is necessary for 3022 IP completions.
2085 */
2086 skb_copy_from_linear_data_offset(skb1, VLAN_ID_LEN,
2087 skb_push(skb2, size), size);
2088 } else {
2089 u16 checksum = le16_to_cpu(ib_ip_rsp_ptr->checksum);
2090 if (checksum &
2091 (IB_IP_IOCB_RSP_3032_ICE |
2092 IB_IP_IOCB_RSP_3032_CE)) {
2093 netdev_err(ndev,
2094 "%s: Bad checksum for this %s packet, checksum = %x\n",
2095 __func__,
2096 ((checksum & IB_IP_IOCB_RSP_3032_TCP) ?
2097 "TCP" : "UDP"), checksum);
2098 } else if ((checksum & IB_IP_IOCB_RSP_3032_TCP) ||
2099 (checksum & IB_IP_IOCB_RSP_3032_UDP &&
2100 !(checksum & IB_IP_IOCB_RSP_3032_NUC))) {
2101 skb2->ip_summed = CHECKSUM_UNNECESSARY;
2102 }
2103 }
2104 skb2->protocol = eth_type_trans(skb2, qdev->ndev);
2105
2106 netif_receive_skb(skb2);
2107 ndev->stats.rx_packets++;
2108 ndev->stats.rx_bytes += length;
2109 lrg_buf_cb2->skb = NULL;
2110
2111 if (qdev->device_id == QL3022_DEVICE_ID)
2112 ql_release_to_lrg_buf_free_list(qdev, lrg_buf_cb1);
2113 ql_release_to_lrg_buf_free_list(qdev, lrg_buf_cb2);
2114 }
2115
2116 static int ql_tx_rx_clean(struct ql3_adapter *qdev,
2117 int *tx_cleaned, int *rx_cleaned, int work_to_do)
2118 {
2119 struct net_rsp_iocb *net_rsp;
2120 struct net_device *ndev = qdev->ndev;
2121 int work_done = 0;
2122
2123 /* While there are entries in the completion queue. */
2124 while ((le32_to_cpu(*(qdev->prsp_producer_index)) !=
2125 qdev->rsp_consumer_index) && (work_done < work_to_do)) {
2126
2127 net_rsp = qdev->rsp_current;
2128 rmb();
2129 /*
2130 * Fix 4032 chip's undocumented "feature" where bit-8 is set
2131 * if the inbound completion is for a VLAN.
2132 */
2133 if (qdev->device_id == QL3032_DEVICE_ID)
2134 net_rsp->opcode &= 0x7f;
2135 switch (net_rsp->opcode) {
2136
2137 case OPCODE_OB_MAC_IOCB_FN0:
2138 case OPCODE_OB_MAC_IOCB_FN2:
2139 ql_process_mac_tx_intr(qdev, (struct ob_mac_iocb_rsp *)
2140 net_rsp);
2141 (*tx_cleaned)++;
2142 break;
2143
2144 case OPCODE_IB_MAC_IOCB:
2145 case OPCODE_IB_3032_MAC_IOCB:
2146 ql_process_mac_rx_intr(qdev, (struct ib_mac_iocb_rsp *)
2147 net_rsp);
2148 (*rx_cleaned)++;
2149 break;
2150
2151 case OPCODE_IB_IP_IOCB:
2152 case OPCODE_IB_3032_IP_IOCB:
2153 ql_process_macip_rx_intr(qdev, (struct ib_ip_iocb_rsp *)
2154 net_rsp);
2155 (*rx_cleaned)++;
2156 break;
2157 default: {
2158 u32 *tmp = (u32 *)net_rsp;
2159 netdev_err(ndev,
2160 "Hit default case, not handled!\n"
2161 " dropping the packet, opcode = %x\n"
2162 "0x%08lx 0x%08lx 0x%08lx 0x%08lx\n",
2163 net_rsp->opcode,
2164 (unsigned long int)tmp[0],
2165 (unsigned long int)tmp[1],
2166 (unsigned long int)tmp[2],
2167 (unsigned long int)tmp[3]);
2168 }
2169 }
2170
2171 qdev->rsp_consumer_index++;
2172
2173 if (qdev->rsp_consumer_index == NUM_RSP_Q_ENTRIES) {
2174 qdev->rsp_consumer_index = 0;
2175 qdev->rsp_current = qdev->rsp_q_virt_addr;
2176 } else {
2177 qdev->rsp_current++;
2178 }
2179
2180 work_done = *tx_cleaned + *rx_cleaned;
2181 }
2182
2183 return work_done;
2184 }
2185
2186 static int ql_poll(struct napi_struct *napi, int budget)
2187 {
2188 struct ql3_adapter *qdev = container_of(napi, struct ql3_adapter, napi);
2189 int rx_cleaned = 0, tx_cleaned = 0;
2190 unsigned long hw_flags;
2191 struct ql3xxx_port_registers __iomem *port_regs =
2192 qdev->mem_map_registers;
2193
2194 ql_tx_rx_clean(qdev, &tx_cleaned, &rx_cleaned, budget);
2195
2196 if (tx_cleaned + rx_cleaned != budget) {
2197 spin_lock_irqsave(&qdev->hw_lock, hw_flags);
2198 __napi_complete(napi);
2199 ql_update_small_bufq_prod_index(qdev);
2200 ql_update_lrg_bufq_prod_index(qdev);
2201 writel(qdev->rsp_consumer_index,
2202 &port_regs->CommonRegs.rspQConsumerIndex);
2203 spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
2204
2205 ql_enable_interrupts(qdev);
2206 }
2207 return tx_cleaned + rx_cleaned;
2208 }
2209
2210 static irqreturn_t ql3xxx_isr(int irq, void *dev_id)
2211 {
2212
2213 struct net_device *ndev = dev_id;
2214 struct ql3_adapter *qdev = netdev_priv(ndev);
2215 struct ql3xxx_port_registers __iomem *port_regs =
2216 qdev->mem_map_registers;
2217 u32 value;
2218 int handled = 1;
2219 u32 var;
2220
2221 value = ql_read_common_reg_l(qdev,
2222 &port_regs->CommonRegs.ispControlStatus);
2223
2224 if (value & (ISP_CONTROL_FE | ISP_CONTROL_RI)) {
2225 spin_lock(&qdev->adapter_lock);
2226 netif_stop_queue(qdev->ndev);
2227 netif_carrier_off(qdev->ndev);
2228 ql_disable_interrupts(qdev);
2229 qdev->port_link_state = LS_DOWN;
2230 set_bit(QL_RESET_ACTIVE, &qdev->flags) ;
2231
2232 if (value & ISP_CONTROL_FE) {
2233 /*
2234 * Chip Fatal Error.
2235 */
2236 var =
2237 ql_read_page0_reg_l(qdev,
2238 &port_regs->PortFatalErrStatus);
2239 netdev_warn(ndev,
2240 "Resetting chip. PortFatalErrStatus register = 0x%x\n",
2241 var);
2242 set_bit(QL_RESET_START, &qdev->flags) ;
2243 } else {
2244 /*
2245 * Soft Reset Requested.
2246 */
2247 set_bit(QL_RESET_PER_SCSI, &qdev->flags) ;
2248 netdev_err(ndev,
2249 "Another function issued a reset to the chip. ISR value = %x\n",
2250 value);
2251 }
2252 queue_delayed_work(qdev->workqueue, &qdev->reset_work, 0);
2253 spin_unlock(&qdev->adapter_lock);
2254 } else if (value & ISP_IMR_DISABLE_CMPL_INT) {
2255 ql_disable_interrupts(qdev);
2256 if (likely(napi_schedule_prep(&qdev->napi)))
2257 __napi_schedule(&qdev->napi);
2258 } else
2259 return IRQ_NONE;
2260
2261 return IRQ_RETVAL(handled);
2262 }
2263
2264 /*
2265 * Get the total number of segments needed for the given number of fragments.
2266 * This is necessary because outbound address lists (OAL) will be used when
2267 * more than two frags are given. Each address list has 5 addr/len pairs.
2268 * The 5th pair in each OAL is used to point to the next OAL if more frags
2269 * are coming. That is why the frags:segment count ratio is not linear.
2270 */
2271 static int ql_get_seg_count(struct ql3_adapter *qdev, unsigned short frags)
2272 {
2273 if (qdev->device_id == QL3022_DEVICE_ID)
2274 return 1;
2275
2276 if (frags <= 2)
2277 return frags + 1;
2278 else if (frags <= 6)
2279 return frags + 2;
2280 else if (frags <= 10)
2281 return frags + 3;
2282 else if (frags <= 14)
2283 return frags + 4;
2284 else if (frags <= 18)
2285 return frags + 5;
2286 return -1;
2287 }
2288
2289 static void ql_hw_csum_setup(const struct sk_buff *skb,
2290 struct ob_mac_iocb_req *mac_iocb_ptr)
2291 {
2292 const struct iphdr *ip = ip_hdr(skb);
2293
2294 mac_iocb_ptr->ip_hdr_off = skb_network_offset(skb);
2295 mac_iocb_ptr->ip_hdr_len = ip->ihl;
2296
2297 if (ip->protocol == IPPROTO_TCP) {
2298 mac_iocb_ptr->flags1 |= OB_3032MAC_IOCB_REQ_TC |
2299 OB_3032MAC_IOCB_REQ_IC;
2300 } else {
2301 mac_iocb_ptr->flags1 |= OB_3032MAC_IOCB_REQ_UC |
2302 OB_3032MAC_IOCB_REQ_IC;
2303 }
2304
2305 }
2306
2307 /*
2308 * Map the buffers for this transmit.
2309 * This will return NETDEV_TX_BUSY or NETDEV_TX_OK based on success.
2310 */
2311 static int ql_send_map(struct ql3_adapter *qdev,
2312 struct ob_mac_iocb_req *mac_iocb_ptr,
2313 struct ql_tx_buf_cb *tx_cb,
2314 struct sk_buff *skb)
2315 {
2316 struct oal *oal;
2317 struct oal_entry *oal_entry;
2318 int len = skb_headlen(skb);
2319 dma_addr_t map;
2320 int err;
2321 int completed_segs, i;
2322 int seg_cnt, seg = 0;
2323 int frag_cnt = (int)skb_shinfo(skb)->nr_frags;
2324
2325 seg_cnt = tx_cb->seg_count;
2326 /*
2327 * Map the skb buffer first.
2328 */
2329 map = pci_map_single(qdev->pdev, skb->data, len, PCI_DMA_TODEVICE);
2330
2331 err = pci_dma_mapping_error(qdev->pdev, map);
2332 if (err) {
2333 netdev_err(qdev->ndev, "PCI mapping failed with error: %d\n",
2334 err);
2335
2336 return NETDEV_TX_BUSY;
2337 }
2338
2339 oal_entry = (struct oal_entry *)&mac_iocb_ptr->buf_addr0_low;
2340 oal_entry->dma_lo = cpu_to_le32(LS_64BITS(map));
2341 oal_entry->dma_hi = cpu_to_le32(MS_64BITS(map));
2342 oal_entry->len = cpu_to_le32(len);
2343 dma_unmap_addr_set(&tx_cb->map[seg], mapaddr, map);
2344 dma_unmap_len_set(&tx_cb->map[seg], maplen, len);
2345 seg++;
2346
2347 if (seg_cnt == 1) {
2348 /* Terminate the last segment. */
2349 oal_entry->len |= cpu_to_le32(OAL_LAST_ENTRY);
2350 return NETDEV_TX_OK;
2351 }
2352 oal = tx_cb->oal;
2353 for (completed_segs = 0;
2354 completed_segs < frag_cnt;
2355 completed_segs++, seg++) {
2356 skb_frag_t *frag = &skb_shinfo(skb)->frags[completed_segs];
2357 oal_entry++;
2358 /*
2359 * Check for continuation requirements.
2360 * It's strange but necessary.
2361 * Continuation entry points to outbound address list.
2362 */
2363 if ((seg == 2 && seg_cnt > 3) ||
2364 (seg == 7 && seg_cnt > 8) ||
2365 (seg == 12 && seg_cnt > 13) ||
2366 (seg == 17 && seg_cnt > 18)) {
2367 map = pci_map_single(qdev->pdev, oal,
2368 sizeof(struct oal),
2369 PCI_DMA_TODEVICE);
2370
2371 err = pci_dma_mapping_error(qdev->pdev, map);
2372 if (err) {
2373 netdev_err(qdev->ndev,
2374 "PCI mapping outbound address list with error: %d\n",
2375 err);
2376 goto map_error;
2377 }
2378
2379 oal_entry->dma_lo = cpu_to_le32(LS_64BITS(map));
2380 oal_entry->dma_hi = cpu_to_le32(MS_64BITS(map));
2381 oal_entry->len = cpu_to_le32(sizeof(struct oal) |
2382 OAL_CONT_ENTRY);
2383 dma_unmap_addr_set(&tx_cb->map[seg], mapaddr, map);
2384 dma_unmap_len_set(&tx_cb->map[seg], maplen,
2385 sizeof(struct oal));
2386 oal_entry = (struct oal_entry *)oal;
2387 oal++;
2388 seg++;
2389 }
2390
2391 map = pci_map_page(qdev->pdev, frag->page,
2392 frag->page_offset, frag->size,
2393 PCI_DMA_TODEVICE);
2394
2395 err = pci_dma_mapping_error(qdev->pdev, map);
2396 if (err) {
2397 netdev_err(qdev->ndev,
2398 "PCI mapping frags failed with error: %d\n",
2399 err);
2400 goto map_error;
2401 }
2402
2403 oal_entry->dma_lo = cpu_to_le32(LS_64BITS(map));
2404 oal_entry->dma_hi = cpu_to_le32(MS_64BITS(map));
2405 oal_entry->len = cpu_to_le32(frag->size);
2406 dma_unmap_addr_set(&tx_cb->map[seg], mapaddr, map);
2407 dma_unmap_len_set(&tx_cb->map[seg], maplen, frag->size);
2408 }
2409 /* Terminate the last segment. */
2410 oal_entry->len |= cpu_to_le32(OAL_LAST_ENTRY);
2411 return NETDEV_TX_OK;
2412
2413 map_error:
2414 /* A PCI mapping failed and now we will need to back out
2415 * We need to traverse through the oal's and associated pages which
2416 * have been mapped and now we must unmap them to clean up properly
2417 */
2418
2419 seg = 1;
2420 oal_entry = (struct oal_entry *)&mac_iocb_ptr->buf_addr0_low;
2421 oal = tx_cb->oal;
2422 for (i = 0; i < completed_segs; i++, seg++) {
2423 oal_entry++;
2424
2425 /*
2426 * Check for continuation requirements.
2427 * It's strange but necessary.
2428 */
2429
2430 if ((seg == 2 && seg_cnt > 3) ||
2431 (seg == 7 && seg_cnt > 8) ||
2432 (seg == 12 && seg_cnt > 13) ||
2433 (seg == 17 && seg_cnt > 18)) {
2434 pci_unmap_single(qdev->pdev,
2435 dma_unmap_addr(&tx_cb->map[seg], mapaddr),
2436 dma_unmap_len(&tx_cb->map[seg], maplen),
2437 PCI_DMA_TODEVICE);
2438 oal++;
2439 seg++;
2440 }
2441
2442 pci_unmap_page(qdev->pdev,
2443 dma_unmap_addr(&tx_cb->map[seg], mapaddr),
2444 dma_unmap_len(&tx_cb->map[seg], maplen),
2445 PCI_DMA_TODEVICE);
2446 }
2447
2448 pci_unmap_single(qdev->pdev,
2449 dma_unmap_addr(&tx_cb->map[0], mapaddr),
2450 dma_unmap_addr(&tx_cb->map[0], maplen),
2451 PCI_DMA_TODEVICE);
2452
2453 return NETDEV_TX_BUSY;
2454
2455 }
2456
2457 /*
2458 * The difference between 3022 and 3032 sends:
2459 * 3022 only supports a simple single segment transmission.
2460 * 3032 supports checksumming and scatter/gather lists (fragments).
2461 * The 3032 supports sglists by using the 3 addr/len pairs (ALP)
2462 * in the IOCB plus a chain of outbound address lists (OAL) that
2463 * each contain 5 ALPs. The last ALP of the IOCB (3rd) or OAL (5th)
2464 * will be used to point to an OAL when more ALP entries are required.
2465 * The IOCB is always the top of the chain followed by one or more
2466 * OALs (when necessary).
2467 */
2468 static netdev_tx_t ql3xxx_send(struct sk_buff *skb,
2469 struct net_device *ndev)
2470 {
2471 struct ql3_adapter *qdev = netdev_priv(ndev);
2472 struct ql3xxx_port_registers __iomem *port_regs =
2473 qdev->mem_map_registers;
2474 struct ql_tx_buf_cb *tx_cb;
2475 u32 tot_len = skb->len;
2476 struct ob_mac_iocb_req *mac_iocb_ptr;
2477
2478 if (unlikely(atomic_read(&qdev->tx_count) < 2))
2479 return NETDEV_TX_BUSY;
2480
2481 tx_cb = &qdev->tx_buf[qdev->req_producer_index];
2482 tx_cb->seg_count = ql_get_seg_count(qdev,
2483 skb_shinfo(skb)->nr_frags);
2484 if (tx_cb->seg_count == -1) {
2485 netdev_err(ndev, "%s: invalid segment count!\n", __func__);
2486 return NETDEV_TX_OK;
2487 }
2488
2489 mac_iocb_ptr = tx_cb->queue_entry;
2490 memset((void *)mac_iocb_ptr, 0, sizeof(struct ob_mac_iocb_req));
2491 mac_iocb_ptr->opcode = qdev->mac_ob_opcode;
2492 mac_iocb_ptr->flags = OB_MAC_IOCB_REQ_X;
2493 mac_iocb_ptr->flags |= qdev->mb_bit_mask;
2494 mac_iocb_ptr->transaction_id = qdev->req_producer_index;
2495 mac_iocb_ptr->data_len = cpu_to_le16((u16) tot_len);
2496 tx_cb->skb = skb;
2497 if (qdev->device_id == QL3032_DEVICE_ID &&
2498 skb->ip_summed == CHECKSUM_PARTIAL)
2499 ql_hw_csum_setup(skb, mac_iocb_ptr);
2500
2501 if (ql_send_map(qdev, mac_iocb_ptr, tx_cb, skb) != NETDEV_TX_OK) {
2502 netdev_err(ndev, "%s: Could not map the segments!\n", __func__);
2503 return NETDEV_TX_BUSY;
2504 }
2505
2506 wmb();
2507 qdev->req_producer_index++;
2508 if (qdev->req_producer_index == NUM_REQ_Q_ENTRIES)
2509 qdev->req_producer_index = 0;
2510 wmb();
2511 ql_write_common_reg_l(qdev,
2512 &port_regs->CommonRegs.reqQProducerIndex,
2513 qdev->req_producer_index);
2514
2515 netif_printk(qdev, tx_queued, KERN_DEBUG, ndev,
2516 "tx queued, slot %d, len %d\n",
2517 qdev->req_producer_index, skb->len);
2518
2519 atomic_dec(&qdev->tx_count);
2520 return NETDEV_TX_OK;
2521 }
2522
2523 static int ql_alloc_net_req_rsp_queues(struct ql3_adapter *qdev)
2524 {
2525 qdev->req_q_size =
2526 (u32) (NUM_REQ_Q_ENTRIES * sizeof(struct ob_mac_iocb_req));
2527
2528 qdev->req_q_virt_addr =
2529 pci_alloc_consistent(qdev->pdev,
2530 (size_t) qdev->req_q_size,
2531 &qdev->req_q_phy_addr);
2532
2533 if ((qdev->req_q_virt_addr == NULL) ||
2534 LS_64BITS(qdev->req_q_phy_addr) & (qdev->req_q_size - 1)) {
2535 netdev_err(qdev->ndev, "reqQ failed\n");
2536 return -ENOMEM;
2537 }
2538
2539 qdev->rsp_q_size = NUM_RSP_Q_ENTRIES * sizeof(struct net_rsp_iocb);
2540
2541 qdev->rsp_q_virt_addr =
2542 pci_alloc_consistent(qdev->pdev,
2543 (size_t) qdev->rsp_q_size,
2544 &qdev->rsp_q_phy_addr);
2545
2546 if ((qdev->rsp_q_virt_addr == NULL) ||
2547 LS_64BITS(qdev->rsp_q_phy_addr) & (qdev->rsp_q_size - 1)) {
2548 netdev_err(qdev->ndev, "rspQ allocation failed\n");
2549 pci_free_consistent(qdev->pdev, (size_t) qdev->req_q_size,
2550 qdev->req_q_virt_addr,
2551 qdev->req_q_phy_addr);
2552 return -ENOMEM;
2553 }
2554
2555 set_bit(QL_ALLOC_REQ_RSP_Q_DONE, &qdev->flags);
2556
2557 return 0;
2558 }
2559
2560 static void ql_free_net_req_rsp_queues(struct ql3_adapter *qdev)
2561 {
2562 if (!test_bit(QL_ALLOC_REQ_RSP_Q_DONE, &qdev->flags)) {
2563 netdev_info(qdev->ndev, "Already done\n");
2564 return;
2565 }
2566
2567 pci_free_consistent(qdev->pdev,
2568 qdev->req_q_size,
2569 qdev->req_q_virt_addr, qdev->req_q_phy_addr);
2570
2571 qdev->req_q_virt_addr = NULL;
2572
2573 pci_free_consistent(qdev->pdev,
2574 qdev->rsp_q_size,
2575 qdev->rsp_q_virt_addr, qdev->rsp_q_phy_addr);
2576
2577 qdev->rsp_q_virt_addr = NULL;
2578
2579 clear_bit(QL_ALLOC_REQ_RSP_Q_DONE, &qdev->flags);
2580 }
2581
2582 static int ql_alloc_buffer_queues(struct ql3_adapter *qdev)
2583 {
2584 /* Create Large Buffer Queue */
2585 qdev->lrg_buf_q_size =
2586 qdev->num_lbufq_entries * sizeof(struct lrg_buf_q_entry);
2587 if (qdev->lrg_buf_q_size < PAGE_SIZE)
2588 qdev->lrg_buf_q_alloc_size = PAGE_SIZE;
2589 else
2590 qdev->lrg_buf_q_alloc_size = qdev->lrg_buf_q_size * 2;
2591
2592 qdev->lrg_buf =
2593 kmalloc(qdev->num_large_buffers * sizeof(struct ql_rcv_buf_cb),
2594 GFP_KERNEL);
2595 if (qdev->lrg_buf == NULL) {
2596 netdev_err(qdev->ndev, "qdev->lrg_buf alloc failed\n");
2597 return -ENOMEM;
2598 }
2599
2600 qdev->lrg_buf_q_alloc_virt_addr =
2601 pci_alloc_consistent(qdev->pdev,
2602 qdev->lrg_buf_q_alloc_size,
2603 &qdev->lrg_buf_q_alloc_phy_addr);
2604
2605 if (qdev->lrg_buf_q_alloc_virt_addr == NULL) {
2606 netdev_err(qdev->ndev, "lBufQ failed\n");
2607 return -ENOMEM;
2608 }
2609 qdev->lrg_buf_q_virt_addr = qdev->lrg_buf_q_alloc_virt_addr;
2610 qdev->lrg_buf_q_phy_addr = qdev->lrg_buf_q_alloc_phy_addr;
2611
2612 /* Create Small Buffer Queue */
2613 qdev->small_buf_q_size =
2614 NUM_SBUFQ_ENTRIES * sizeof(struct lrg_buf_q_entry);
2615 if (qdev->small_buf_q_size < PAGE_SIZE)
2616 qdev->small_buf_q_alloc_size = PAGE_SIZE;
2617 else
2618 qdev->small_buf_q_alloc_size = qdev->small_buf_q_size * 2;
2619
2620 qdev->small_buf_q_alloc_virt_addr =
2621 pci_alloc_consistent(qdev->pdev,
2622 qdev->small_buf_q_alloc_size,
2623 &qdev->small_buf_q_alloc_phy_addr);
2624
2625 if (qdev->small_buf_q_alloc_virt_addr == NULL) {
2626 netdev_err(qdev->ndev, "Small Buffer Queue allocation failed\n");
2627 pci_free_consistent(qdev->pdev, qdev->lrg_buf_q_alloc_size,
2628 qdev->lrg_buf_q_alloc_virt_addr,
2629 qdev->lrg_buf_q_alloc_phy_addr);
2630 return -ENOMEM;
2631 }
2632
2633 qdev->small_buf_q_virt_addr = qdev->small_buf_q_alloc_virt_addr;
2634 qdev->small_buf_q_phy_addr = qdev->small_buf_q_alloc_phy_addr;
2635 set_bit(QL_ALLOC_BUFQS_DONE, &qdev->flags);
2636 return 0;
2637 }
2638
2639 static void ql_free_buffer_queues(struct ql3_adapter *qdev)
2640 {
2641 if (!test_bit(QL_ALLOC_BUFQS_DONE, &qdev->flags)) {
2642 netdev_info(qdev->ndev, "Already done\n");
2643 return;
2644 }
2645 kfree(qdev->lrg_buf);
2646 pci_free_consistent(qdev->pdev,
2647 qdev->lrg_buf_q_alloc_size,
2648 qdev->lrg_buf_q_alloc_virt_addr,
2649 qdev->lrg_buf_q_alloc_phy_addr);
2650
2651 qdev->lrg_buf_q_virt_addr = NULL;
2652
2653 pci_free_consistent(qdev->pdev,
2654 qdev->small_buf_q_alloc_size,
2655 qdev->small_buf_q_alloc_virt_addr,
2656 qdev->small_buf_q_alloc_phy_addr);
2657
2658 qdev->small_buf_q_virt_addr = NULL;
2659
2660 clear_bit(QL_ALLOC_BUFQS_DONE, &qdev->flags);
2661 }
2662
2663 static int ql_alloc_small_buffers(struct ql3_adapter *qdev)
2664 {
2665 int i;
2666 struct bufq_addr_element *small_buf_q_entry;
2667
2668 /* Currently we allocate on one of memory and use it for smallbuffers */
2669 qdev->small_buf_total_size =
2670 (QL_ADDR_ELE_PER_BUFQ_ENTRY * NUM_SBUFQ_ENTRIES *
2671 QL_SMALL_BUFFER_SIZE);
2672
2673 qdev->small_buf_virt_addr =
2674 pci_alloc_consistent(qdev->pdev,
2675 qdev->small_buf_total_size,
2676 &qdev->small_buf_phy_addr);
2677
2678 if (qdev->small_buf_virt_addr == NULL) {
2679 netdev_err(qdev->ndev, "Failed to get small buffer memory\n");
2680 return -ENOMEM;
2681 }
2682
2683 qdev->small_buf_phy_addr_low = LS_64BITS(qdev->small_buf_phy_addr);
2684 qdev->small_buf_phy_addr_high = MS_64BITS(qdev->small_buf_phy_addr);
2685
2686 small_buf_q_entry = qdev->small_buf_q_virt_addr;
2687
2688 /* Initialize the small buffer queue. */
2689 for (i = 0; i < (QL_ADDR_ELE_PER_BUFQ_ENTRY * NUM_SBUFQ_ENTRIES); i++) {
2690 small_buf_q_entry->addr_high =
2691 cpu_to_le32(qdev->small_buf_phy_addr_high);
2692 small_buf_q_entry->addr_low =
2693 cpu_to_le32(qdev->small_buf_phy_addr_low +
2694 (i * QL_SMALL_BUFFER_SIZE));
2695 small_buf_q_entry++;
2696 }
2697 qdev->small_buf_index = 0;
2698 set_bit(QL_ALLOC_SMALL_BUF_DONE, &qdev->flags);
2699 return 0;
2700 }
2701
2702 static void ql_free_small_buffers(struct ql3_adapter *qdev)
2703 {
2704 if (!test_bit(QL_ALLOC_SMALL_BUF_DONE, &qdev->flags)) {
2705 netdev_info(qdev->ndev, "Already done\n");
2706 return;
2707 }
2708 if (qdev->small_buf_virt_addr != NULL) {
2709 pci_free_consistent(qdev->pdev,
2710 qdev->small_buf_total_size,
2711 qdev->small_buf_virt_addr,
2712 qdev->small_buf_phy_addr);
2713
2714 qdev->small_buf_virt_addr = NULL;
2715 }
2716 }
2717
2718 static void ql_free_large_buffers(struct ql3_adapter *qdev)
2719 {
2720 int i = 0;
2721 struct ql_rcv_buf_cb *lrg_buf_cb;
2722
2723 for (i = 0; i < qdev->num_large_buffers; i++) {
2724 lrg_buf_cb = &qdev->lrg_buf[i];
2725 if (lrg_buf_cb->skb) {
2726 dev_kfree_skb(lrg_buf_cb->skb);
2727 pci_unmap_single(qdev->pdev,
2728 dma_unmap_addr(lrg_buf_cb, mapaddr),
2729 dma_unmap_len(lrg_buf_cb, maplen),
2730 PCI_DMA_FROMDEVICE);
2731 memset(lrg_buf_cb, 0, sizeof(struct ql_rcv_buf_cb));
2732 } else {
2733 break;
2734 }
2735 }
2736 }
2737
2738 static void ql_init_large_buffers(struct ql3_adapter *qdev)
2739 {
2740 int i;
2741 struct ql_rcv_buf_cb *lrg_buf_cb;
2742 struct bufq_addr_element *buf_addr_ele = qdev->lrg_buf_q_virt_addr;
2743
2744 for (i = 0; i < qdev->num_large_buffers; i++) {
2745 lrg_buf_cb = &qdev->lrg_buf[i];
2746 buf_addr_ele->addr_high = lrg_buf_cb->buf_phy_addr_high;
2747 buf_addr_ele->addr_low = lrg_buf_cb->buf_phy_addr_low;
2748 buf_addr_ele++;
2749 }
2750 qdev->lrg_buf_index = 0;
2751 qdev->lrg_buf_skb_check = 0;
2752 }
2753
2754 static int ql_alloc_large_buffers(struct ql3_adapter *qdev)
2755 {
2756 int i;
2757 struct ql_rcv_buf_cb *lrg_buf_cb;
2758 struct sk_buff *skb;
2759 dma_addr_t map;
2760 int err;
2761
2762 for (i = 0; i < qdev->num_large_buffers; i++) {
2763 skb = netdev_alloc_skb(qdev->ndev,
2764 qdev->lrg_buffer_len);
2765 if (unlikely(!skb)) {
2766 /* Better luck next round */
2767 netdev_err(qdev->ndev,
2768 "large buff alloc failed for %d bytes at index %d\n",
2769 qdev->lrg_buffer_len * 2, i);
2770 ql_free_large_buffers(qdev);
2771 return -ENOMEM;
2772 } else {
2773
2774 lrg_buf_cb = &qdev->lrg_buf[i];
2775 memset(lrg_buf_cb, 0, sizeof(struct ql_rcv_buf_cb));
2776 lrg_buf_cb->index = i;
2777 lrg_buf_cb->skb = skb;
2778 /*
2779 * We save some space to copy the ethhdr from first
2780 * buffer
2781 */
2782 skb_reserve(skb, QL_HEADER_SPACE);
2783 map = pci_map_single(qdev->pdev,
2784 skb->data,
2785 qdev->lrg_buffer_len -
2786 QL_HEADER_SPACE,
2787 PCI_DMA_FROMDEVICE);
2788
2789 err = pci_dma_mapping_error(qdev->pdev, map);
2790 if (err) {
2791 netdev_err(qdev->ndev,
2792 "PCI mapping failed with error: %d\n",
2793 err);
2794 ql_free_large_buffers(qdev);
2795 return -ENOMEM;
2796 }
2797
2798 dma_unmap_addr_set(lrg_buf_cb, mapaddr, map);
2799 dma_unmap_len_set(lrg_buf_cb, maplen,
2800 qdev->lrg_buffer_len -
2801 QL_HEADER_SPACE);
2802 lrg_buf_cb->buf_phy_addr_low =
2803 cpu_to_le32(LS_64BITS(map));
2804 lrg_buf_cb->buf_phy_addr_high =
2805 cpu_to_le32(MS_64BITS(map));
2806 }
2807 }
2808 return 0;
2809 }
2810
2811 static void ql_free_send_free_list(struct ql3_adapter *qdev)
2812 {
2813 struct ql_tx_buf_cb *tx_cb;
2814 int i;
2815
2816 tx_cb = &qdev->tx_buf[0];
2817 for (i = 0; i < NUM_REQ_Q_ENTRIES; i++) {
2818 kfree(tx_cb->oal);
2819 tx_cb->oal = NULL;
2820 tx_cb++;
2821 }
2822 }
2823
2824 static int ql_create_send_free_list(struct ql3_adapter *qdev)
2825 {
2826 struct ql_tx_buf_cb *tx_cb;
2827 int i;
2828 struct ob_mac_iocb_req *req_q_curr = qdev->req_q_virt_addr;
2829
2830 /* Create free list of transmit buffers */
2831 for (i = 0; i < NUM_REQ_Q_ENTRIES; i++) {
2832
2833 tx_cb = &qdev->tx_buf[i];
2834 tx_cb->skb = NULL;
2835 tx_cb->queue_entry = req_q_curr;
2836 req_q_curr++;
2837 tx_cb->oal = kmalloc(512, GFP_KERNEL);
2838 if (tx_cb->oal == NULL)
2839 return -1;
2840 }
2841 return 0;
2842 }
2843
2844 static int ql_alloc_mem_resources(struct ql3_adapter *qdev)
2845 {
2846 if (qdev->ndev->mtu == NORMAL_MTU_SIZE) {
2847 qdev->num_lbufq_entries = NUM_LBUFQ_ENTRIES;
2848 qdev->lrg_buffer_len = NORMAL_MTU_SIZE;
2849 } else if (qdev->ndev->mtu == JUMBO_MTU_SIZE) {
2850 /*
2851 * Bigger buffers, so less of them.
2852 */
2853 qdev->num_lbufq_entries = JUMBO_NUM_LBUFQ_ENTRIES;
2854 qdev->lrg_buffer_len = JUMBO_MTU_SIZE;
2855 } else {
2856 netdev_err(qdev->ndev, "Invalid mtu size: %d. Only %d and %d are accepted.\n",
2857 qdev->ndev->mtu, NORMAL_MTU_SIZE, JUMBO_MTU_SIZE);
2858 return -ENOMEM;
2859 }
2860 qdev->num_large_buffers =
2861 qdev->num_lbufq_entries * QL_ADDR_ELE_PER_BUFQ_ENTRY;
2862 qdev->lrg_buffer_len += VLAN_ETH_HLEN + VLAN_ID_LEN + QL_HEADER_SPACE;
2863 qdev->max_frame_size =
2864 (qdev->lrg_buffer_len - QL_HEADER_SPACE) + ETHERNET_CRC_SIZE;
2865
2866 /*
2867 * First allocate a page of shared memory and use it for shadow
2868 * locations of Network Request Queue Consumer Address Register and
2869 * Network Completion Queue Producer Index Register
2870 */
2871 qdev->shadow_reg_virt_addr =
2872 pci_alloc_consistent(qdev->pdev,
2873 PAGE_SIZE, &qdev->shadow_reg_phy_addr);
2874
2875 if (qdev->shadow_reg_virt_addr != NULL) {
2876 qdev->preq_consumer_index = qdev->shadow_reg_virt_addr;
2877 qdev->req_consumer_index_phy_addr_high =
2878 MS_64BITS(qdev->shadow_reg_phy_addr);
2879 qdev->req_consumer_index_phy_addr_low =
2880 LS_64BITS(qdev->shadow_reg_phy_addr);
2881
2882 qdev->prsp_producer_index =
2883 (__le32 *) (((u8 *) qdev->preq_consumer_index) + 8);
2884 qdev->rsp_producer_index_phy_addr_high =
2885 qdev->req_consumer_index_phy_addr_high;
2886 qdev->rsp_producer_index_phy_addr_low =
2887 qdev->req_consumer_index_phy_addr_low + 8;
2888 } else {
2889 netdev_err(qdev->ndev, "shadowReg Alloc failed\n");
2890 return -ENOMEM;
2891 }
2892
2893 if (ql_alloc_net_req_rsp_queues(qdev) != 0) {
2894 netdev_err(qdev->ndev, "ql_alloc_net_req_rsp_queues failed\n");
2895 goto err_req_rsp;
2896 }
2897
2898 if (ql_alloc_buffer_queues(qdev) != 0) {
2899 netdev_err(qdev->ndev, "ql_alloc_buffer_queues failed\n");
2900 goto err_buffer_queues;
2901 }
2902
2903 if (ql_alloc_small_buffers(qdev) != 0) {
2904 netdev_err(qdev->ndev, "ql_alloc_small_buffers failed\n");
2905 goto err_small_buffers;
2906 }
2907
2908 if (ql_alloc_large_buffers(qdev) != 0) {
2909 netdev_err(qdev->ndev, "ql_alloc_large_buffers failed\n");
2910 goto err_small_buffers;
2911 }
2912
2913 /* Initialize the large buffer queue. */
2914 ql_init_large_buffers(qdev);
2915 if (ql_create_send_free_list(qdev))
2916 goto err_free_list;
2917
2918 qdev->rsp_current = qdev->rsp_q_virt_addr;
2919
2920 return 0;
2921 err_free_list:
2922 ql_free_send_free_list(qdev);
2923 err_small_buffers:
2924 ql_free_buffer_queues(qdev);
2925 err_buffer_queues:
2926 ql_free_net_req_rsp_queues(qdev);
2927 err_req_rsp:
2928 pci_free_consistent(qdev->pdev,
2929 PAGE_SIZE,
2930 qdev->shadow_reg_virt_addr,
2931 qdev->shadow_reg_phy_addr);
2932
2933 return -ENOMEM;
2934 }
2935
2936 static void ql_free_mem_resources(struct ql3_adapter *qdev)
2937 {
2938 ql_free_send_free_list(qdev);
2939 ql_free_large_buffers(qdev);
2940 ql_free_small_buffers(qdev);
2941 ql_free_buffer_queues(qdev);
2942 ql_free_net_req_rsp_queues(qdev);
2943 if (qdev->shadow_reg_virt_addr != NULL) {
2944 pci_free_consistent(qdev->pdev,
2945 PAGE_SIZE,
2946 qdev->shadow_reg_virt_addr,
2947 qdev->shadow_reg_phy_addr);
2948 qdev->shadow_reg_virt_addr = NULL;
2949 }
2950 }
2951
2952 static int ql_init_misc_registers(struct ql3_adapter *qdev)
2953 {
2954 struct ql3xxx_local_ram_registers __iomem *local_ram =
2955 (void __iomem *)qdev->mem_map_registers;
2956
2957 if (ql_sem_spinlock(qdev, QL_DDR_RAM_SEM_MASK,
2958 (QL_RESOURCE_BITS_BASE_CODE | (qdev->mac_index) *
2959 2) << 4))
2960 return -1;
2961
2962 ql_write_page2_reg(qdev,
2963 &local_ram->bufletSize, qdev->nvram_data.bufletSize);
2964
2965 ql_write_page2_reg(qdev,
2966 &local_ram->maxBufletCount,
2967 qdev->nvram_data.bufletCount);
2968
2969 ql_write_page2_reg(qdev,
2970 &local_ram->freeBufletThresholdLow,
2971 (qdev->nvram_data.tcpWindowThreshold25 << 16) |
2972 (qdev->nvram_data.tcpWindowThreshold0));
2973
2974 ql_write_page2_reg(qdev,
2975 &local_ram->freeBufletThresholdHigh,
2976 qdev->nvram_data.tcpWindowThreshold50);
2977
2978 ql_write_page2_reg(qdev,
2979 &local_ram->ipHashTableBase,
2980 (qdev->nvram_data.ipHashTableBaseHi << 16) |
2981 qdev->nvram_data.ipHashTableBaseLo);
2982 ql_write_page2_reg(qdev,
2983 &local_ram->ipHashTableCount,
2984 qdev->nvram_data.ipHashTableSize);
2985 ql_write_page2_reg(qdev,
2986 &local_ram->tcpHashTableBase,
2987 (qdev->nvram_data.tcpHashTableBaseHi << 16) |
2988 qdev->nvram_data.tcpHashTableBaseLo);
2989 ql_write_page2_reg(qdev,
2990 &local_ram->tcpHashTableCount,
2991 qdev->nvram_data.tcpHashTableSize);
2992 ql_write_page2_reg(qdev,
2993 &local_ram->ncbBase,
2994 (qdev->nvram_data.ncbTableBaseHi << 16) |
2995 qdev->nvram_data.ncbTableBaseLo);
2996 ql_write_page2_reg(qdev,
2997 &local_ram->maxNcbCount,
2998 qdev->nvram_data.ncbTableSize);
2999 ql_write_page2_reg(qdev,
3000 &local_ram->drbBase,
3001 (qdev->nvram_data.drbTableBaseHi << 16) |
3002 qdev->nvram_data.drbTableBaseLo);
3003 ql_write_page2_reg(qdev,
3004 &local_ram->maxDrbCount,
3005 qdev->nvram_data.drbTableSize);
3006 ql_sem_unlock(qdev, QL_DDR_RAM_SEM_MASK);
3007 return 0;
3008 }
3009
3010 static int ql_adapter_initialize(struct ql3_adapter *qdev)
3011 {
3012 u32 value;
3013 struct ql3xxx_port_registers __iomem *port_regs =
3014 qdev->mem_map_registers;
3015 __iomem u32 *spir = &port_regs->CommonRegs.serialPortInterfaceReg;
3016 struct ql3xxx_host_memory_registers __iomem *hmem_regs =
3017 (void __iomem *)port_regs;
3018 u32 delay = 10;
3019 int status = 0;
3020 unsigned long hw_flags = 0;
3021
3022 if (ql_mii_setup(qdev))
3023 return -1;
3024
3025 /* Bring out PHY out of reset */
3026 ql_write_common_reg(qdev, spir,
3027 (ISP_SERIAL_PORT_IF_WE |
3028 (ISP_SERIAL_PORT_IF_WE << 16)));
3029 /* Give the PHY time to come out of reset. */
3030 mdelay(100);
3031 qdev->port_link_state = LS_DOWN;
3032 netif_carrier_off(qdev->ndev);
3033
3034 /* V2 chip fix for ARS-39168. */
3035 ql_write_common_reg(qdev, spir,
3036 (ISP_SERIAL_PORT_IF_SDE |
3037 (ISP_SERIAL_PORT_IF_SDE << 16)));
3038
3039 /* Request Queue Registers */
3040 *((u32 *)(qdev->preq_consumer_index)) = 0;
3041 atomic_set(&qdev->tx_count, NUM_REQ_Q_ENTRIES);
3042 qdev->req_producer_index = 0;
3043
3044 ql_write_page1_reg(qdev,
3045 &hmem_regs->reqConsumerIndexAddrHigh,
3046 qdev->req_consumer_index_phy_addr_high);
3047 ql_write_page1_reg(qdev,
3048 &hmem_regs->reqConsumerIndexAddrLow,
3049 qdev->req_consumer_index_phy_addr_low);
3050
3051 ql_write_page1_reg(qdev,
3052 &hmem_regs->reqBaseAddrHigh,
3053 MS_64BITS(qdev->req_q_phy_addr));
3054 ql_write_page1_reg(qdev,
3055 &hmem_regs->reqBaseAddrLow,
3056 LS_64BITS(qdev->req_q_phy_addr));
3057 ql_write_page1_reg(qdev, &hmem_regs->reqLength, NUM_REQ_Q_ENTRIES);
3058
3059 /* Response Queue Registers */
3060 *((__le16 *) (qdev->prsp_producer_index)) = 0;
3061 qdev->rsp_consumer_index = 0;
3062 qdev->rsp_current = qdev->rsp_q_virt_addr;
3063
3064 ql_write_page1_reg(qdev,
3065 &hmem_regs->rspProducerIndexAddrHigh,
3066 qdev->rsp_producer_index_phy_addr_high);
3067
3068 ql_write_page1_reg(qdev,
3069 &hmem_regs->rspProducerIndexAddrLow,
3070 qdev->rsp_producer_index_phy_addr_low);
3071
3072 ql_write_page1_reg(qdev,
3073 &hmem_regs->rspBaseAddrHigh,
3074 MS_64BITS(qdev->rsp_q_phy_addr));
3075
3076 ql_write_page1_reg(qdev,
3077 &hmem_regs->rspBaseAddrLow,
3078 LS_64BITS(qdev->rsp_q_phy_addr));
3079
3080 ql_write_page1_reg(qdev, &hmem_regs->rspLength, NUM_RSP_Q_ENTRIES);
3081
3082 /* Large Buffer Queue */
3083 ql_write_page1_reg(qdev,
3084 &hmem_regs->rxLargeQBaseAddrHigh,
3085 MS_64BITS(qdev->lrg_buf_q_phy_addr));
3086
3087 ql_write_page1_reg(qdev,
3088 &hmem_regs->rxLargeQBaseAddrLow,
3089 LS_64BITS(qdev->lrg_buf_q_phy_addr));
3090
3091 ql_write_page1_reg(qdev,
3092 &hmem_regs->rxLargeQLength,
3093 qdev->num_lbufq_entries);
3094
3095 ql_write_page1_reg(qdev,
3096 &hmem_regs->rxLargeBufferLength,
3097 qdev->lrg_buffer_len);
3098
3099 /* Small Buffer Queue */
3100 ql_write_page1_reg(qdev,
3101 &hmem_regs->rxSmallQBaseAddrHigh,
3102 MS_64BITS(qdev->small_buf_q_phy_addr));
3103
3104 ql_write_page1_reg(qdev,
3105 &hmem_regs->rxSmallQBaseAddrLow,
3106 LS_64BITS(qdev->small_buf_q_phy_addr));
3107
3108 ql_write_page1_reg(qdev, &hmem_regs->rxSmallQLength, NUM_SBUFQ_ENTRIES);
3109 ql_write_page1_reg(qdev,
3110 &hmem_regs->rxSmallBufferLength,
3111 QL_SMALL_BUFFER_SIZE);
3112
3113 qdev->small_buf_q_producer_index = NUM_SBUFQ_ENTRIES - 1;
3114 qdev->small_buf_release_cnt = 8;
3115 qdev->lrg_buf_q_producer_index = qdev->num_lbufq_entries - 1;
3116 qdev->lrg_buf_release_cnt = 8;
3117 qdev->lrg_buf_next_free = 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_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