1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright (c) 2019 - 2022 Beijing WangXun Technology Co., Ltd. */
3
4 #include <linux/types.h>
5 #include <linux/module.h>
6 #include <linux/pci.h>
7 #include <linux/netdevice.h>
8 #include <linux/string.h>
9 #include <linux/etherdevice.h>
10 #include <net/ip.h>
11 #include <linux/phy.h>
12 #include <linux/if_vlan.h>
13
14 #include "../libwx/wx_type.h"
15 #include "../libwx/wx_hw.h"
16 #include "../libwx/wx_lib.h"
17 #include "ngbe_type.h"
18 #include "ngbe_mdio.h"
19 #include "ngbe_hw.h"
20 #include "ngbe_ethtool.h"
21
22 char ngbe_driver_name[] = "ngbe";
23
24 /* ngbe_pci_tbl - PCI Device ID Table
25 *
26 * { Vendor ID, Device ID, SubVendor ID, SubDevice ID,
27 * Class, Class Mask, private data (not used) }
28 */
29 static const struct pci_device_id ngbe_pci_tbl[] = {
30 { PCI_VDEVICE(WANGXUN, NGBE_DEV_ID_EM_WX1860AL_W), 0},
31 { PCI_VDEVICE(WANGXUN, NGBE_DEV_ID_EM_WX1860A2), 0},
32 { PCI_VDEVICE(WANGXUN, NGBE_DEV_ID_EM_WX1860A2S), 0},
33 { PCI_VDEVICE(WANGXUN, NGBE_DEV_ID_EM_WX1860A4), 0},
34 { PCI_VDEVICE(WANGXUN, NGBE_DEV_ID_EM_WX1860A4S), 0},
35 { PCI_VDEVICE(WANGXUN, NGBE_DEV_ID_EM_WX1860AL2), 0},
36 { PCI_VDEVICE(WANGXUN, NGBE_DEV_ID_EM_WX1860AL2S), 0},
37 { PCI_VDEVICE(WANGXUN, NGBE_DEV_ID_EM_WX1860AL4), 0},
38 { PCI_VDEVICE(WANGXUN, NGBE_DEV_ID_EM_WX1860AL4S), 0},
39 { PCI_VDEVICE(WANGXUN, NGBE_DEV_ID_EM_WX1860LC), 0},
40 { PCI_VDEVICE(WANGXUN, NGBE_DEV_ID_EM_WX1860A1), 0},
41 { PCI_VDEVICE(WANGXUN, NGBE_DEV_ID_EM_WX1860A1L), 0},
42 /* required last entry */
43 { .device = 0 }
44 };
45
46 /**
47 * ngbe_init_type_code - Initialize the shared code
48 * @wx: pointer to hardware structure
49 **/
ngbe_init_type_code(struct wx * wx)50 static void ngbe_init_type_code(struct wx *wx)
51 {
52 int wol_mask = 0, ncsi_mask = 0;
53 u16 type_mask = 0, val;
54
55 wx->mac.type = wx_mac_em;
56 type_mask = (u16)(wx->subsystem_device_id & NGBE_OEM_MASK);
57 ncsi_mask = wx->subsystem_device_id & NGBE_NCSI_MASK;
58 wol_mask = wx->subsystem_device_id & NGBE_WOL_MASK;
59
60 val = rd32(wx, WX_CFG_PORT_ST);
61 wx->mac_type = (val & BIT(7)) >> 7 ?
62 em_mac_type_rgmii :
63 em_mac_type_mdi;
64
65 wx->wol_hw_supported = (wol_mask == NGBE_WOL_SUP) ? 1 : 0;
66 wx->ncsi_enabled = (ncsi_mask == NGBE_NCSI_MASK ||
67 type_mask == NGBE_SUBID_OCP_CARD) ? 1 : 0;
68
69 switch (type_mask) {
70 case NGBE_SUBID_LY_YT8521S_SFP:
71 case NGBE_SUBID_LY_M88E1512_SFP:
72 case NGBE_SUBID_YT8521S_SFP_GPIO:
73 case NGBE_SUBID_INTERNAL_YT8521S_SFP_GPIO:
74 wx->gpio_ctrl = 1;
75 break;
76 default:
77 wx->gpio_ctrl = 0;
78 break;
79 }
80 }
81
82 /**
83 * ngbe_init_rss_key - Initialize wx RSS key
84 * @wx: device handle
85 *
86 * Allocates and initializes the RSS key if it is not allocated.
87 **/
ngbe_init_rss_key(struct wx * wx)88 static inline int ngbe_init_rss_key(struct wx *wx)
89 {
90 u32 *rss_key;
91
92 if (!wx->rss_key) {
93 rss_key = kzalloc(WX_RSS_KEY_SIZE, GFP_KERNEL);
94 if (unlikely(!rss_key))
95 return -ENOMEM;
96
97 netdev_rss_key_fill(rss_key, WX_RSS_KEY_SIZE);
98 wx->rss_key = rss_key;
99 }
100
101 return 0;
102 }
103
104 /**
105 * ngbe_sw_init - Initialize general software structures
106 * @wx: board private structure to initialize
107 **/
ngbe_sw_init(struct wx * wx)108 static int ngbe_sw_init(struct wx *wx)
109 {
110 struct pci_dev *pdev = wx->pdev;
111 u16 msix_count = 0;
112 int err = 0;
113
114 wx->mac.num_rar_entries = NGBE_RAR_ENTRIES;
115 wx->mac.max_rx_queues = NGBE_MAX_RX_QUEUES;
116 wx->mac.max_tx_queues = NGBE_MAX_TX_QUEUES;
117 wx->mac.mcft_size = NGBE_MC_TBL_SIZE;
118 wx->mac.vft_size = NGBE_SP_VFT_TBL_SIZE;
119 wx->mac.rx_pb_size = NGBE_RX_PB_SIZE;
120 wx->mac.tx_pb_size = NGBE_TDB_PB_SZ;
121
122 /* PCI config space info */
123 err = wx_sw_init(wx);
124 if (err < 0)
125 return err;
126
127 /* mac type, phy type , oem type */
128 ngbe_init_type_code(wx);
129
130 /* Set common capability flags and settings */
131 wx->max_q_vectors = NGBE_MAX_MSIX_VECTORS;
132 err = wx_get_pcie_msix_counts(wx, &msix_count, NGBE_MAX_MSIX_VECTORS);
133 if (err)
134 dev_err(&pdev->dev, "Do not support MSI-X\n");
135 wx->mac.max_msix_vectors = msix_count;
136
137 if (ngbe_init_rss_key(wx))
138 return -ENOMEM;
139
140 /* enable itr by default in dynamic mode */
141 wx->rx_itr_setting = 1;
142 wx->tx_itr_setting = 1;
143
144 /* set default ring sizes */
145 wx->tx_ring_count = NGBE_DEFAULT_TXD;
146 wx->rx_ring_count = NGBE_DEFAULT_RXD;
147
148 /* set default work limits */
149 wx->tx_work_limit = NGBE_DEFAULT_TX_WORK;
150 wx->rx_work_limit = NGBE_DEFAULT_RX_WORK;
151
152 return 0;
153 }
154
155 /**
156 * ngbe_irq_enable - Enable default interrupt generation settings
157 * @wx: board private structure
158 * @queues: enable all queues interrupts
159 **/
ngbe_irq_enable(struct wx * wx,bool queues)160 static void ngbe_irq_enable(struct wx *wx, bool queues)
161 {
162 u32 mask;
163
164 /* enable misc interrupt */
165 mask = NGBE_PX_MISC_IEN_MASK;
166
167 wr32(wx, WX_GPIO_DDR, WX_GPIO_DDR_0);
168 wr32(wx, WX_GPIO_INTEN, WX_GPIO_INTEN_0 | WX_GPIO_INTEN_1);
169 wr32(wx, WX_GPIO_INTTYPE_LEVEL, 0x0);
170 wr32(wx, WX_GPIO_POLARITY, wx->gpio_ctrl ? 0 : 0x3);
171
172 wr32(wx, WX_PX_MISC_IEN, mask);
173
174 /* mask interrupt */
175 if (queues)
176 wx_intr_enable(wx, NGBE_INTR_ALL);
177 else
178 wx_intr_enable(wx, NGBE_INTR_MISC(wx));
179 }
180
181 /**
182 * ngbe_intr - msi/legacy mode Interrupt Handler
183 * @irq: interrupt number
184 * @data: pointer to a network interface device structure
185 **/
ngbe_intr(int __always_unused irq,void * data)186 static irqreturn_t ngbe_intr(int __always_unused irq, void *data)
187 {
188 struct wx_q_vector *q_vector;
189 struct wx *wx = data;
190 struct pci_dev *pdev;
191 u32 eicr;
192
193 q_vector = wx->q_vector[0];
194 pdev = wx->pdev;
195
196 eicr = wx_misc_isb(wx, WX_ISB_VEC0);
197 if (!eicr) {
198 /* shared interrupt alert!
199 * the interrupt that we masked before the EICR read.
200 */
201 if (netif_running(wx->netdev))
202 ngbe_irq_enable(wx, true);
203 return IRQ_NONE; /* Not our interrupt */
204 }
205 wx->isb_mem[WX_ISB_VEC0] = 0;
206 if (!(pdev->msi_enabled))
207 wr32(wx, WX_PX_INTA, 1);
208
209 wx->isb_mem[WX_ISB_MISC] = 0;
210 /* would disable interrupts here but it is auto disabled */
211 napi_schedule_irqoff(&q_vector->napi);
212
213 if (netif_running(wx->netdev))
214 ngbe_irq_enable(wx, false);
215
216 return IRQ_HANDLED;
217 }
218
ngbe_msix_other(int __always_unused irq,void * data)219 static irqreturn_t ngbe_msix_other(int __always_unused irq, void *data)
220 {
221 struct wx *wx = data;
222
223 /* re-enable the original interrupt state, no lsc, no queues */
224 if (netif_running(wx->netdev))
225 ngbe_irq_enable(wx, false);
226
227 return IRQ_HANDLED;
228 }
229
230 /**
231 * ngbe_request_msix_irqs - Initialize MSI-X interrupts
232 * @wx: board private structure
233 *
234 * ngbe_request_msix_irqs allocates MSI-X vectors and requests
235 * interrupts from the kernel.
236 **/
ngbe_request_msix_irqs(struct wx * wx)237 static int ngbe_request_msix_irqs(struct wx *wx)
238 {
239 struct net_device *netdev = wx->netdev;
240 int vector, err;
241
242 for (vector = 0; vector < wx->num_q_vectors; vector++) {
243 struct wx_q_vector *q_vector = wx->q_vector[vector];
244 struct msix_entry *entry = &wx->msix_entries[vector];
245
246 if (q_vector->tx.ring && q_vector->rx.ring)
247 snprintf(q_vector->name, sizeof(q_vector->name) - 1,
248 "%s-TxRx-%d", netdev->name, entry->entry);
249 else
250 /* skip this unused q_vector */
251 continue;
252
253 err = request_irq(entry->vector, wx_msix_clean_rings, 0,
254 q_vector->name, q_vector);
255 if (err) {
256 wx_err(wx, "request_irq failed for MSIX interrupt %s Error: %d\n",
257 q_vector->name, err);
258 goto free_queue_irqs;
259 }
260 }
261
262 err = request_irq(wx->msix_entries[vector].vector,
263 ngbe_msix_other, 0, netdev->name, wx);
264
265 if (err) {
266 wx_err(wx, "request_irq for msix_other failed: %d\n", err);
267 goto free_queue_irqs;
268 }
269
270 return 0;
271
272 free_queue_irqs:
273 while (vector) {
274 vector--;
275 free_irq(wx->msix_entries[vector].vector,
276 wx->q_vector[vector]);
277 }
278 wx_reset_interrupt_capability(wx);
279 return err;
280 }
281
282 /**
283 * ngbe_request_irq - initialize interrupts
284 * @wx: board private structure
285 *
286 * Attempts to configure interrupts using the best available
287 * capabilities of the hardware and kernel.
288 **/
ngbe_request_irq(struct wx * wx)289 static int ngbe_request_irq(struct wx *wx)
290 {
291 struct net_device *netdev = wx->netdev;
292 struct pci_dev *pdev = wx->pdev;
293 int err;
294
295 if (pdev->msix_enabled)
296 err = ngbe_request_msix_irqs(wx);
297 else if (pdev->msi_enabled)
298 err = request_irq(pdev->irq, ngbe_intr, 0,
299 netdev->name, wx);
300 else
301 err = request_irq(pdev->irq, ngbe_intr, IRQF_SHARED,
302 netdev->name, wx);
303
304 if (err)
305 wx_err(wx, "request_irq failed, Error %d\n", err);
306
307 return err;
308 }
309
ngbe_disable_device(struct wx * wx)310 static void ngbe_disable_device(struct wx *wx)
311 {
312 struct net_device *netdev = wx->netdev;
313 u32 i;
314
315 /* disable all enabled rx queues */
316 for (i = 0; i < wx->num_rx_queues; i++)
317 /* this call also flushes the previous write */
318 wx_disable_rx_queue(wx, wx->rx_ring[i]);
319 /* disable receives */
320 wx_disable_rx(wx);
321 wx_napi_disable_all(wx);
322 netif_tx_stop_all_queues(netdev);
323 netif_tx_disable(netdev);
324 if (wx->gpio_ctrl)
325 ngbe_sfp_modules_txrx_powerctl(wx, false);
326 wx_irq_disable(wx);
327 /* disable transmits in the hardware now that interrupts are off */
328 for (i = 0; i < wx->num_tx_queues; i++) {
329 u8 reg_idx = wx->tx_ring[i]->reg_idx;
330
331 wr32(wx, WX_PX_TR_CFG(reg_idx), WX_PX_TR_CFG_SWFLSH);
332 }
333 }
334
ngbe_down(struct wx * wx)335 static void ngbe_down(struct wx *wx)
336 {
337 phy_stop(wx->phydev);
338 ngbe_disable_device(wx);
339 wx_clean_all_tx_rings(wx);
340 wx_clean_all_rx_rings(wx);
341 }
342
ngbe_up(struct wx * wx)343 static void ngbe_up(struct wx *wx)
344 {
345 wx_configure_vectors(wx);
346
347 /* make sure to complete pre-operations */
348 smp_mb__before_atomic();
349 wx_napi_enable_all(wx);
350 /* enable transmits */
351 netif_tx_start_all_queues(wx->netdev);
352
353 /* clear any pending interrupts, may auto mask */
354 rd32(wx, WX_PX_IC(0));
355 rd32(wx, WX_PX_MISC_IC);
356 ngbe_irq_enable(wx, true);
357 if (wx->gpio_ctrl)
358 ngbe_sfp_modules_txrx_powerctl(wx, true);
359
360 phy_start(wx->phydev);
361 }
362
363 /**
364 * ngbe_open - Called when a network interface is made active
365 * @netdev: network interface device structure
366 *
367 * Returns 0 on success, negative value on failure
368 *
369 * The open entry point is called when a network interface is made
370 * active by the system (IFF_UP).
371 **/
ngbe_open(struct net_device * netdev)372 static int ngbe_open(struct net_device *netdev)
373 {
374 struct wx *wx = netdev_priv(netdev);
375 int err;
376
377 wx_control_hw(wx, true);
378
379 err = wx_setup_resources(wx);
380 if (err)
381 return err;
382
383 wx_configure(wx);
384
385 err = ngbe_request_irq(wx);
386 if (err)
387 goto err_free_resources;
388
389 err = ngbe_phy_connect(wx);
390 if (err)
391 goto err_free_irq;
392
393 err = netif_set_real_num_tx_queues(netdev, wx->num_tx_queues);
394 if (err)
395 goto err_dis_phy;
396
397 err = netif_set_real_num_rx_queues(netdev, wx->num_rx_queues);
398 if (err)
399 goto err_dis_phy;
400
401 ngbe_up(wx);
402
403 return 0;
404 err_dis_phy:
405 phy_disconnect(wx->phydev);
406 err_free_irq:
407 wx_free_irq(wx);
408 err_free_resources:
409 wx_free_resources(wx);
410 return err;
411 }
412
413 /**
414 * ngbe_close - Disables a network interface
415 * @netdev: network interface device structure
416 *
417 * Returns 0, this is not allowed to fail
418 *
419 * The close entry point is called when an interface is de-activated
420 * by the OS. The hardware is still under the drivers control, but
421 * needs to be disabled. A global MAC reset is issued to stop the
422 * hardware, and all transmit and receive resources are freed.
423 **/
ngbe_close(struct net_device * netdev)424 static int ngbe_close(struct net_device *netdev)
425 {
426 struct wx *wx = netdev_priv(netdev);
427
428 ngbe_down(wx);
429 wx_free_irq(wx);
430 wx_free_resources(wx);
431 phy_disconnect(wx->phydev);
432 wx_control_hw(wx, false);
433
434 return 0;
435 }
436
ngbe_dev_shutdown(struct pci_dev * pdev,bool * enable_wake)437 static void ngbe_dev_shutdown(struct pci_dev *pdev, bool *enable_wake)
438 {
439 struct wx *wx = pci_get_drvdata(pdev);
440 struct net_device *netdev;
441 u32 wufc = wx->wol;
442
443 netdev = wx->netdev;
444 rtnl_lock();
445 netif_device_detach(netdev);
446
447 if (netif_running(netdev))
448 ngbe_close(netdev);
449 wx_clear_interrupt_scheme(wx);
450 rtnl_unlock();
451
452 if (wufc) {
453 wx_set_rx_mode(netdev);
454 wx_configure_rx(wx);
455 wr32(wx, NGBE_PSR_WKUP_CTL, wufc);
456 } else {
457 wr32(wx, NGBE_PSR_WKUP_CTL, 0);
458 }
459 pci_wake_from_d3(pdev, !!wufc);
460 *enable_wake = !!wufc;
461 wx_control_hw(wx, false);
462
463 pci_disable_device(pdev);
464 }
465
ngbe_shutdown(struct pci_dev * pdev)466 static void ngbe_shutdown(struct pci_dev *pdev)
467 {
468 struct wx *wx = pci_get_drvdata(pdev);
469 bool wake;
470
471 wake = !!wx->wol;
472
473 ngbe_dev_shutdown(pdev, &wake);
474
475 if (system_state == SYSTEM_POWER_OFF) {
476 pci_wake_from_d3(pdev, wake);
477 pci_set_power_state(pdev, PCI_D3hot);
478 }
479 }
480
481 static const struct net_device_ops ngbe_netdev_ops = {
482 .ndo_open = ngbe_open,
483 .ndo_stop = ngbe_close,
484 .ndo_change_mtu = wx_change_mtu,
485 .ndo_start_xmit = wx_xmit_frame,
486 .ndo_set_rx_mode = wx_set_rx_mode,
487 .ndo_set_features = wx_set_features,
488 .ndo_validate_addr = eth_validate_addr,
489 .ndo_set_mac_address = wx_set_mac,
490 .ndo_get_stats64 = wx_get_stats64,
491 .ndo_vlan_rx_add_vid = wx_vlan_rx_add_vid,
492 .ndo_vlan_rx_kill_vid = wx_vlan_rx_kill_vid,
493 };
494
495 /**
496 * ngbe_probe - Device Initialization Routine
497 * @pdev: PCI device information struct
498 * @ent: entry in ngbe_pci_tbl
499 *
500 * Returns 0 on success, negative on failure
501 *
502 * ngbe_probe initializes an wx identified by a pci_dev structure.
503 * The OS initialization, configuring of the wx private structure,
504 * and a hardware reset occur.
505 **/
ngbe_probe(struct pci_dev * pdev,const struct pci_device_id __always_unused * ent)506 static int ngbe_probe(struct pci_dev *pdev,
507 const struct pci_device_id __always_unused *ent)
508 {
509 struct net_device *netdev;
510 u32 e2rom_cksum_cap = 0;
511 struct wx *wx = NULL;
512 static int func_nums;
513 u16 e2rom_ver = 0;
514 u32 etrack_id = 0;
515 u32 saved_ver = 0;
516 int err;
517
518 err = pci_enable_device_mem(pdev);
519 if (err)
520 return err;
521
522 err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
523 if (err) {
524 dev_err(&pdev->dev,
525 "No usable DMA configuration, aborting\n");
526 goto err_pci_disable_dev;
527 }
528
529 err = pci_request_selected_regions(pdev,
530 pci_select_bars(pdev, IORESOURCE_MEM),
531 ngbe_driver_name);
532 if (err) {
533 dev_err(&pdev->dev,
534 "pci_request_selected_regions failed %d\n", err);
535 goto err_pci_disable_dev;
536 }
537
538 pci_set_master(pdev);
539
540 netdev = devm_alloc_etherdev_mqs(&pdev->dev,
541 sizeof(struct wx),
542 NGBE_MAX_TX_QUEUES,
543 NGBE_MAX_RX_QUEUES);
544 if (!netdev) {
545 err = -ENOMEM;
546 goto err_pci_release_regions;
547 }
548
549 SET_NETDEV_DEV(netdev, &pdev->dev);
550
551 wx = netdev_priv(netdev);
552 wx->netdev = netdev;
553 wx->pdev = pdev;
554 wx->msg_enable = BIT(3) - 1;
555
556 wx->hw_addr = devm_ioremap(&pdev->dev,
557 pci_resource_start(pdev, 0),
558 pci_resource_len(pdev, 0));
559 if (!wx->hw_addr) {
560 err = -EIO;
561 goto err_pci_release_regions;
562 }
563
564 wx->driver_name = ngbe_driver_name;
565 ngbe_set_ethtool_ops(netdev);
566 netdev->netdev_ops = &ngbe_netdev_ops;
567
568 netdev->features = NETIF_F_SG | NETIF_F_IP_CSUM |
569 NETIF_F_TSO | NETIF_F_TSO6 |
570 NETIF_F_RXHASH | NETIF_F_RXCSUM;
571 netdev->features |= NETIF_F_SCTP_CRC | NETIF_F_TSO_MANGLEID;
572 netdev->vlan_features |= netdev->features;
573 netdev->features |= NETIF_F_IPV6_CSUM | NETIF_F_VLAN_FEATURES;
574 /* copy netdev features into list of user selectable features */
575 netdev->hw_features |= netdev->features | NETIF_F_RXALL;
576 netdev->hw_features |= NETIF_F_NTUPLE | NETIF_F_HW_TC;
577 netdev->features |= NETIF_F_HIGHDMA;
578 netdev->hw_features |= NETIF_F_GRO;
579 netdev->features |= NETIF_F_GRO;
580
581 netdev->priv_flags |= IFF_UNICAST_FLT;
582 netdev->priv_flags |= IFF_SUPP_NOFCS;
583
584 netdev->min_mtu = ETH_MIN_MTU;
585 netdev->max_mtu = WX_MAX_JUMBO_FRAME_SIZE -
586 (ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN);
587
588 wx->bd_number = func_nums;
589 /* setup the private structure */
590 err = ngbe_sw_init(wx);
591 if (err)
592 goto err_free_mac_table;
593
594 /* check if flash load is done after hw power up */
595 err = wx_check_flash_load(wx, NGBE_SPI_ILDR_STATUS_PERST);
596 if (err)
597 goto err_free_mac_table;
598 err = wx_check_flash_load(wx, NGBE_SPI_ILDR_STATUS_PWRRST);
599 if (err)
600 goto err_free_mac_table;
601
602 err = wx_mng_present(wx);
603 if (err) {
604 dev_err(&pdev->dev, "Management capability is not present\n");
605 goto err_free_mac_table;
606 }
607
608 err = ngbe_reset_hw(wx);
609 if (err) {
610 dev_err(&pdev->dev, "HW Init failed: %d\n", err);
611 goto err_free_mac_table;
612 }
613
614 if (wx->bus.func == 0) {
615 wr32(wx, NGBE_CALSUM_CAP_STATUS, 0x0);
616 wr32(wx, NGBE_EEPROM_VERSION_STORE_REG, 0x0);
617 } else {
618 e2rom_cksum_cap = rd32(wx, NGBE_CALSUM_CAP_STATUS);
619 saved_ver = rd32(wx, NGBE_EEPROM_VERSION_STORE_REG);
620 }
621
622 wx_init_eeprom_params(wx);
623 if (wx->bus.func == 0 || e2rom_cksum_cap == 0) {
624 /* make sure the EEPROM is ready */
625 err = ngbe_eeprom_chksum_hostif(wx);
626 if (err) {
627 dev_err(&pdev->dev, "The EEPROM Checksum Is Not Valid\n");
628 err = -EIO;
629 goto err_free_mac_table;
630 }
631 }
632
633 wx->wol = 0;
634 if (wx->wol_hw_supported)
635 wx->wol = NGBE_PSR_WKUP_CTL_MAG;
636
637 netdev->wol_enabled = !!(wx->wol);
638 wr32(wx, NGBE_PSR_WKUP_CTL, wx->wol);
639 device_set_wakeup_enable(&pdev->dev, wx->wol);
640
641 /* Save off EEPROM version number and Option Rom version which
642 * together make a unique identify for the eeprom
643 */
644 if (saved_ver) {
645 etrack_id = saved_ver;
646 } else {
647 wx_read_ee_hostif(wx,
648 wx->eeprom.sw_region_offset + NGBE_EEPROM_VERSION_H,
649 &e2rom_ver);
650 etrack_id = e2rom_ver << 16;
651 wx_read_ee_hostif(wx,
652 wx->eeprom.sw_region_offset + NGBE_EEPROM_VERSION_L,
653 &e2rom_ver);
654 etrack_id |= e2rom_ver;
655 wr32(wx, NGBE_EEPROM_VERSION_STORE_REG, etrack_id);
656 }
657 snprintf(wx->eeprom_id, sizeof(wx->eeprom_id),
658 "0x%08x", etrack_id);
659
660 eth_hw_addr_set(netdev, wx->mac.perm_addr);
661 wx_mac_set_default_filter(wx, wx->mac.perm_addr);
662
663 err = wx_init_interrupt_scheme(wx);
664 if (err)
665 goto err_free_mac_table;
666
667 /* phy Interface Configuration */
668 err = ngbe_mdio_init(wx);
669 if (err)
670 goto err_clear_interrupt_scheme;
671
672 err = register_netdev(netdev);
673 if (err)
674 goto err_register;
675
676 pci_set_drvdata(pdev, wx);
677
678 netif_info(wx, probe, netdev,
679 "PHY: %s, PBA No: Wang Xun GbE Family Controller\n",
680 wx->mac_type == em_mac_type_mdi ? "Internal" : "External");
681 netif_info(wx, probe, netdev, "%pM\n", netdev->dev_addr);
682
683 return 0;
684
685 err_register:
686 wx_control_hw(wx, false);
687 err_clear_interrupt_scheme:
688 wx_clear_interrupt_scheme(wx);
689 err_free_mac_table:
690 kfree(wx->mac_table);
691 err_pci_release_regions:
692 pci_release_selected_regions(pdev,
693 pci_select_bars(pdev, IORESOURCE_MEM));
694 err_pci_disable_dev:
695 pci_disable_device(pdev);
696 return err;
697 }
698
699 /**
700 * ngbe_remove - Device Removal Routine
701 * @pdev: PCI device information struct
702 *
703 * ngbe_remove is called by the PCI subsystem to alert the driver
704 * that it should release a PCI device. The could be caused by a
705 * Hot-Plug event, or because the driver is going to be removed from
706 * memory.
707 **/
ngbe_remove(struct pci_dev * pdev)708 static void ngbe_remove(struct pci_dev *pdev)
709 {
710 struct wx *wx = pci_get_drvdata(pdev);
711 struct net_device *netdev;
712
713 netdev = wx->netdev;
714 unregister_netdev(netdev);
715 pci_release_selected_regions(pdev,
716 pci_select_bars(pdev, IORESOURCE_MEM));
717
718 kfree(wx->mac_table);
719 wx_clear_interrupt_scheme(wx);
720
721 pci_disable_device(pdev);
722 }
723
ngbe_suspend(struct pci_dev * pdev,pm_message_t state)724 static int ngbe_suspend(struct pci_dev *pdev, pm_message_t state)
725 {
726 bool wake;
727
728 ngbe_dev_shutdown(pdev, &wake);
729 device_set_wakeup_enable(&pdev->dev, wake);
730
731 return 0;
732 }
733
ngbe_resume(struct pci_dev * pdev)734 static int ngbe_resume(struct pci_dev *pdev)
735 {
736 struct net_device *netdev;
737 struct wx *wx;
738 u32 err;
739
740 wx = pci_get_drvdata(pdev);
741 netdev = wx->netdev;
742
743 err = pci_enable_device_mem(pdev);
744 if (err) {
745 wx_err(wx, "Cannot enable PCI device from suspend\n");
746 return err;
747 }
748 pci_set_master(pdev);
749 device_wakeup_disable(&pdev->dev);
750
751 ngbe_reset_hw(wx);
752 rtnl_lock();
753 err = wx_init_interrupt_scheme(wx);
754 if (!err && netif_running(netdev))
755 err = ngbe_open(netdev);
756 if (!err)
757 netif_device_attach(netdev);
758 rtnl_unlock();
759
760 return 0;
761 }
762
763 static struct pci_driver ngbe_driver = {
764 .name = ngbe_driver_name,
765 .id_table = ngbe_pci_tbl,
766 .probe = ngbe_probe,
767 .remove = ngbe_remove,
768 .suspend = ngbe_suspend,
769 .resume = ngbe_resume,
770 .shutdown = ngbe_shutdown,
771 };
772
773 module_pci_driver(ngbe_driver);
774
775 MODULE_DEVICE_TABLE(pci, ngbe_pci_tbl);
776 MODULE_AUTHOR("Beijing WangXun Technology Co., Ltd, <software@net-swift.com>");
777 MODULE_DESCRIPTION("WangXun(R) Gigabit PCI Express Network Driver");
778 MODULE_LICENSE("GPL");
779