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34#include <linux/module.h>
35#include <linux/moduleparam.h>
36#include <linux/netdevice.h>
37#include <linux/etherdevice.h>
38#include <linux/ethtool.h>
39#include <linux/mii.h>
40#include <linux/if_vlan.h>
41#include <linux/crc32.h>
42#include <linux/in.h>
43#include <linux/fs.h>
44#include <linux/init.h>
45#include <linux/if_arp.h>
46#include <linux/highmem.h>
47#include <linux/slab.h>
48#include <asm/io.h>
49#include <asm/irq.h>
50#include <asm/byteorder.h>
51#include <rdma/ib_smi.h>
52#include <rdma/ib_verbs.h>
53#include <rdma/ib_pack.h>
54#include <rdma/iw_cm.h>
55
56#include "nes.h"
57
58#include <net/netevent.h>
59#include <net/neighbour.h>
60#include <linux/route.h>
61#include <net/ip_fib.h>
62
63MODULE_AUTHOR("NetEffect");
64MODULE_DESCRIPTION("NetEffect RNIC Low-level iWARP Driver");
65MODULE_LICENSE("Dual BSD/GPL");
66MODULE_VERSION(DRV_VERSION);
67
68int max_mtu = 9000;
69int interrupt_mod_interval = 0;
70
71
72int mpa_version = 1;
73module_param(mpa_version, int, 0644);
74MODULE_PARM_DESC(mpa_version, "MPA version to be used int MPA Req/Resp (0 or 1)");
75
76
77int disable_mpa_crc = 0;
78module_param(disable_mpa_crc, int, 0644);
79MODULE_PARM_DESC(disable_mpa_crc, "Disable checking of MPA CRC");
80
81unsigned int nes_drv_opt = NES_DRV_OPT_DISABLE_INT_MOD | NES_DRV_OPT_ENABLE_PAU;
82module_param(nes_drv_opt, int, 0644);
83MODULE_PARM_DESC(nes_drv_opt, "Driver option parameters");
84
85unsigned int nes_debug_level = 0;
86module_param_named(debug_level, nes_debug_level, uint, 0644);
87MODULE_PARM_DESC(debug_level, "Enable debug output level");
88
89unsigned int wqm_quanta = 0x10000;
90module_param(wqm_quanta, int, 0644);
91MODULE_PARM_DESC(wqm_quanta, "WQM quanta");
92
93static bool limit_maxrdreqsz;
94module_param(limit_maxrdreqsz, bool, 0644);
95MODULE_PARM_DESC(limit_maxrdreqsz, "Limit max read request size to 256 Bytes");
96
97LIST_HEAD(nes_adapter_list);
98static LIST_HEAD(nes_dev_list);
99
100atomic_t qps_destroyed;
101
102static unsigned int ee_flsh_adapter;
103static unsigned int sysfs_nonidx_addr;
104static unsigned int sysfs_idx_addr;
105
106static struct pci_device_id nes_pci_table[] = {
107 { PCI_VDEVICE(NETEFFECT, PCI_DEVICE_ID_NETEFFECT_NE020), },
108 { PCI_VDEVICE(NETEFFECT, PCI_DEVICE_ID_NETEFFECT_NE020_KR), },
109 {0}
110};
111
112MODULE_DEVICE_TABLE(pci, nes_pci_table);
113
114
115static struct ibnl_client_cbs nes_nl_cb_table[] = {
116 [RDMA_NL_IWPM_REG_PID] = {.dump = iwpm_register_pid_cb},
117 [RDMA_NL_IWPM_ADD_MAPPING] = {.dump = iwpm_add_mapping_cb},
118 [RDMA_NL_IWPM_QUERY_MAPPING] = {.dump = iwpm_add_and_query_mapping_cb},
119 [RDMA_NL_IWPM_REMOTE_INFO] = {.dump = iwpm_remote_info_cb},
120 [RDMA_NL_IWPM_HANDLE_ERR] = {.dump = iwpm_mapping_error_cb},
121 [RDMA_NL_IWPM_MAPINFO] = {.dump = iwpm_mapping_info_cb},
122 [RDMA_NL_IWPM_MAPINFO_NUM] = {.dump = iwpm_ack_mapping_info_cb}
123};
124
125static int nes_inetaddr_event(struct notifier_block *, unsigned long, void *);
126static int nes_net_event(struct notifier_block *, unsigned long, void *);
127static int nes_notifiers_registered;
128
129
130static struct notifier_block nes_inetaddr_notifier = {
131 .notifier_call = nes_inetaddr_event
132};
133
134static struct notifier_block nes_net_notifier = {
135 .notifier_call = nes_net_event
136};
137
138
139
140
141static int nes_inetaddr_event(struct notifier_block *notifier,
142 unsigned long event, void *ptr)
143{
144 struct in_ifaddr *ifa = ptr;
145 struct net_device *event_netdev = ifa->ifa_dev->dev;
146 struct nes_device *nesdev;
147 struct net_device *netdev;
148 struct net_device *upper_dev;
149 struct nes_vnic *nesvnic;
150 unsigned int is_bonded;
151
152 nes_debug(NES_DBG_NETDEV, "nes_inetaddr_event: ip address %pI4, netmask %pI4.\n",
153 &ifa->ifa_address, &ifa->ifa_mask);
154 list_for_each_entry(nesdev, &nes_dev_list, list) {
155 nes_debug(NES_DBG_NETDEV, "Nesdev list entry = 0x%p. (%s)\n",
156 nesdev, nesdev->netdev[0]->name);
157 netdev = nesdev->netdev[0];
158 nesvnic = netdev_priv(netdev);
159 upper_dev = netdev_master_upper_dev_get(netdev);
160 is_bonded = netif_is_bond_slave(netdev) &&
161 (upper_dev == event_netdev);
162 if ((netdev == event_netdev) || is_bonded) {
163 if (nesvnic->rdma_enabled == 0) {
164 nes_debug(NES_DBG_NETDEV, "Returning without processing event for %s since"
165 " RDMA is not enabled.\n",
166 netdev->name);
167 return NOTIFY_OK;
168 }
169
170 switch (event) {
171 case NETDEV_DOWN:
172 nes_debug(NES_DBG_NETDEV, "event:DOWN\n");
173 nes_write_indexed(nesdev,
174 NES_IDX_DST_IP_ADDR+(0x10*PCI_FUNC(nesdev->pcidev->devfn)), 0);
175
176 nes_manage_arp_cache(netdev, netdev->dev_addr,
177 ntohl(nesvnic->local_ipaddr), NES_ARP_DELETE);
178 nesvnic->local_ipaddr = 0;
179 if (is_bonded)
180 continue;
181 else
182 return NOTIFY_OK;
183 break;
184 case NETDEV_UP:
185 nes_debug(NES_DBG_NETDEV, "event:UP\n");
186
187 if (nesvnic->local_ipaddr != 0) {
188 nes_debug(NES_DBG_NETDEV, "Interface already has local_ipaddr\n");
189 return NOTIFY_OK;
190 }
191
192 case NETDEV_CHANGEADDR:
193
194 if (upper_dev)
195 nesvnic->local_ipaddr =
196 ((struct in_device *)upper_dev->ip_ptr)->ifa_list->ifa_address;
197 else
198 nesvnic->local_ipaddr = ifa->ifa_address;
199
200 nes_write_indexed(nesdev,
201 NES_IDX_DST_IP_ADDR+(0x10*PCI_FUNC(nesdev->pcidev->devfn)),
202 ntohl(nesvnic->local_ipaddr));
203 nes_manage_arp_cache(netdev, netdev->dev_addr,
204 ntohl(nesvnic->local_ipaddr), NES_ARP_ADD);
205 if (is_bonded)
206 continue;
207 else
208 return NOTIFY_OK;
209 break;
210 default:
211 break;
212 }
213 }
214 }
215
216 return NOTIFY_DONE;
217}
218
219
220
221
222
223static int nes_net_event(struct notifier_block *notifier,
224 unsigned long event, void *ptr)
225{
226 struct neighbour *neigh = ptr;
227 struct nes_device *nesdev;
228 struct net_device *netdev;
229 struct nes_vnic *nesvnic;
230
231 switch (event) {
232 case NETEVENT_NEIGH_UPDATE:
233 list_for_each_entry(nesdev, &nes_dev_list, list) {
234
235 netdev = nesdev->netdev[0];
236 nesvnic = netdev_priv(netdev);
237 if (netdev == neigh->dev) {
238 if (nesvnic->rdma_enabled == 0) {
239 nes_debug(NES_DBG_NETDEV, "Skipping device %s since no RDMA\n",
240 netdev->name);
241 } else {
242 if (neigh->nud_state & NUD_VALID) {
243 nes_manage_arp_cache(neigh->dev, neigh->ha,
244 ntohl(*(__be32 *)neigh->primary_key), NES_ARP_ADD);
245 } else {
246 nes_manage_arp_cache(neigh->dev, neigh->ha,
247 ntohl(*(__be32 *)neigh->primary_key), NES_ARP_DELETE);
248 }
249 }
250 return NOTIFY_OK;
251 }
252 }
253 break;
254 default:
255 nes_debug(NES_DBG_NETDEV, "NETEVENT_ %lu undefined\n", event);
256 break;
257 }
258
259 return NOTIFY_DONE;
260}
261
262
263
264
265
266void nes_add_ref(struct ib_qp *ibqp)
267{
268 struct nes_qp *nesqp;
269
270 nesqp = to_nesqp(ibqp);
271 nes_debug(NES_DBG_QP, "Bumping refcount for QP%u. Pre-inc value = %u\n",
272 ibqp->qp_num, atomic_read(&nesqp->refcount));
273 atomic_inc(&nesqp->refcount);
274}
275
276static void nes_cqp_rem_ref_callback(struct nes_device *nesdev, struct nes_cqp_request *cqp_request)
277{
278 unsigned long flags;
279 struct nes_qp *nesqp = cqp_request->cqp_callback_pointer;
280 struct nes_adapter *nesadapter = nesdev->nesadapter;
281
282 atomic_inc(&qps_destroyed);
283
284
285
286 if (nesqp->pbl_vbase) {
287 pci_free_consistent(nesdev->pcidev, nesqp->qp_mem_size,
288 nesqp->hwqp.q2_vbase, nesqp->hwqp.q2_pbase);
289 spin_lock_irqsave(&nesadapter->pbl_lock, flags);
290 nesadapter->free_256pbl++;
291 spin_unlock_irqrestore(&nesadapter->pbl_lock, flags);
292 pci_free_consistent(nesdev->pcidev, 256, nesqp->pbl_vbase, nesqp->pbl_pbase);
293 nesqp->pbl_vbase = NULL;
294
295 } else {
296 pci_free_consistent(nesdev->pcidev, nesqp->qp_mem_size,
297 nesqp->hwqp.sq_vbase, nesqp->hwqp.sq_pbase);
298 }
299 nes_free_resource(nesadapter, nesadapter->allocated_qps, nesqp->hwqp.qp_id);
300
301 nesadapter->qp_table[nesqp->hwqp.qp_id-NES_FIRST_QPN] = NULL;
302 kfree(nesqp->allocated_buffer);
303
304}
305
306
307
308
309void nes_rem_ref(struct ib_qp *ibqp)
310{
311 u64 u64temp;
312 struct nes_qp *nesqp;
313 struct nes_vnic *nesvnic = to_nesvnic(ibqp->device);
314 struct nes_device *nesdev = nesvnic->nesdev;
315 struct nes_hw_cqp_wqe *cqp_wqe;
316 struct nes_cqp_request *cqp_request;
317 u32 opcode;
318
319 nesqp = to_nesqp(ibqp);
320
321 if (atomic_read(&nesqp->refcount) == 0) {
322 printk(KERN_INFO PFX "%s: Reference count already 0 for QP%d, last aeq = 0x%04X.\n",
323 __func__, ibqp->qp_num, nesqp->last_aeq);
324 BUG();
325 }
326
327 if (atomic_dec_and_test(&nesqp->refcount)) {
328 if (nesqp->pau_mode)
329 nes_destroy_pau_qp(nesdev, nesqp);
330
331
332 cqp_request = nes_get_cqp_request(nesdev);
333 if (cqp_request == NULL) {
334 nes_debug(NES_DBG_QP, "Failed to get a cqp_request.\n");
335 return;
336 }
337 cqp_request->waiting = 0;
338 cqp_request->callback = 1;
339 cqp_request->cqp_callback = nes_cqp_rem_ref_callback;
340 cqp_request->cqp_callback_pointer = nesqp;
341 cqp_wqe = &cqp_request->cqp_wqe;
342
343 nes_fill_init_cqp_wqe(cqp_wqe, nesdev);
344 opcode = NES_CQP_DESTROY_QP | NES_CQP_QP_TYPE_IWARP;
345
346 if (nesqp->hte_added) {
347 opcode |= NES_CQP_QP_DEL_HTE;
348 nesqp->hte_added = 0;
349 }
350 set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_OPCODE_IDX, opcode);
351 set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_ID_IDX, nesqp->hwqp.qp_id);
352 u64temp = (u64)nesqp->nesqp_context_pbase;
353 set_wqe_64bit_value(cqp_wqe->wqe_words, NES_CQP_QP_WQE_CONTEXT_LOW_IDX, u64temp);
354 nes_post_cqp_request(nesdev, cqp_request);
355 }
356}
357
358
359
360
361
362struct ib_qp *nes_get_qp(struct ib_device *device, int qpn)
363{
364 struct nes_vnic *nesvnic = to_nesvnic(device);
365 struct nes_device *nesdev = nesvnic->nesdev;
366 struct nes_adapter *nesadapter = nesdev->nesadapter;
367
368 if ((qpn < NES_FIRST_QPN) || (qpn >= (NES_FIRST_QPN + nesadapter->max_qp)))
369 return NULL;
370
371 return &nesadapter->qp_table[qpn - NES_FIRST_QPN]->ibqp;
372}
373
374
375
376
377
378static void nes_print_macaddr(struct net_device *netdev)
379{
380 nes_debug(NES_DBG_INIT, "%s: %pM, IRQ %u\n",
381 netdev->name, netdev->dev_addr, netdev->irq);
382}
383
384
385
386
387static irqreturn_t nes_interrupt(int irq, void *dev_id)
388{
389 struct nes_device *nesdev = (struct nes_device *)dev_id;
390 int handled = 0;
391 u32 int_mask;
392 u32 int_req;
393 u32 int_stat;
394 u32 intf_int_stat;
395 u32 timer_stat;
396
397 if (nesdev->msi_enabled) {
398
399 handled = 1;
400 } else {
401 if (unlikely(nesdev->nesadapter->hw_rev == NE020_REV)) {
402
403
404 int_mask = nes_read32(nesdev->regs + NES_INT_MASK);
405 if (int_mask & 0x80000000) {
406
407 int_stat = nes_read32(nesdev->regs + NES_INT_STAT);
408 int_req = nesdev->int_req;
409 if (int_stat&int_req) {
410
411 if ((int_stat&int_req) & (~(NES_INT_TIMER|NES_INT_INTF))) {
412 handled = 1;
413 } else {
414 if (((int_stat & int_req) & NES_INT_TIMER) == NES_INT_TIMER) {
415
416 timer_stat = nes_read32(nesdev->regs + NES_TIMER_STAT);
417 if ((timer_stat & nesdev->timer_int_req) != 0) {
418 handled = 1;
419 }
420 }
421 if ((((int_stat & int_req) & NES_INT_INTF) == NES_INT_INTF) &&
422 (handled == 0)) {
423 intf_int_stat = nes_read32(nesdev->regs+NES_INTF_INT_STAT);
424 if ((intf_int_stat & nesdev->intf_int_req) != 0) {
425 handled = 1;
426 }
427 }
428 }
429 if (handled) {
430 nes_write32(nesdev->regs+NES_INT_MASK, int_mask & (~0x80000000));
431 int_mask = nes_read32(nesdev->regs+NES_INT_MASK);
432
433 nesdev->int_stat = int_stat;
434 nesdev->napi_isr_ran = 1;
435 }
436 }
437 }
438 } else {
439 handled = nes_read32(nesdev->regs+NES_INT_PENDING);
440 }
441 }
442
443 if (handled) {
444
445 if (nes_napi_isr(nesdev) == 0) {
446 tasklet_schedule(&nesdev->dpc_tasklet);
447
448 }
449 return IRQ_HANDLED;
450 } else {
451 return IRQ_NONE;
452 }
453}
454
455
456
457
458
459static int nes_probe(struct pci_dev *pcidev, const struct pci_device_id *ent)
460{
461 struct net_device *netdev = NULL;
462 struct nes_device *nesdev = NULL;
463 int ret = 0;
464 void __iomem *mmio_regs = NULL;
465 u8 hw_rev;
466
467 assert(pcidev != NULL);
468 assert(ent != NULL);
469
470 printk(KERN_INFO PFX "NetEffect RNIC driver v%s loading. (%s)\n",
471 DRV_VERSION, pci_name(pcidev));
472
473 ret = pci_enable_device(pcidev);
474 if (ret) {
475 printk(KERN_ERR PFX "Unable to enable PCI device. (%s)\n", pci_name(pcidev));
476 goto bail0;
477 }
478
479 nes_debug(NES_DBG_INIT, "BAR0 (@0x%08lX) size = 0x%lX bytes\n",
480 (long unsigned int)pci_resource_start(pcidev, BAR_0),
481 (long unsigned int)pci_resource_len(pcidev, BAR_0));
482 nes_debug(NES_DBG_INIT, "BAR1 (@0x%08lX) size = 0x%lX bytes\n",
483 (long unsigned int)pci_resource_start(pcidev, BAR_1),
484 (long unsigned int)pci_resource_len(pcidev, BAR_1));
485
486
487 if (!(pci_resource_flags(pcidev, BAR_0) & IORESOURCE_MEM) ||
488 !(pci_resource_flags(pcidev, BAR_1) & IORESOURCE_MEM)) {
489 printk(KERN_ERR PFX "PCI regions not an MMIO resource\n");
490 ret = -ENODEV;
491 goto bail1;
492 }
493
494
495 ret = pci_request_regions(pcidev, DRV_NAME);
496 if (ret) {
497 printk(KERN_ERR PFX "Unable to request regions. (%s)\n", pci_name(pcidev));
498 goto bail1;
499 }
500
501 if ((sizeof(dma_addr_t) > 4)) {
502 ret = pci_set_dma_mask(pcidev, DMA_BIT_MASK(64));
503 if (ret < 0) {
504 printk(KERN_ERR PFX "64b DMA mask configuration failed\n");
505 goto bail2;
506 }
507 ret = pci_set_consistent_dma_mask(pcidev, DMA_BIT_MASK(64));
508 if (ret) {
509 printk(KERN_ERR PFX "64b DMA consistent mask configuration failed\n");
510 goto bail2;
511 }
512 } else {
513 ret = pci_set_dma_mask(pcidev, DMA_BIT_MASK(32));
514 if (ret < 0) {
515 printk(KERN_ERR PFX "32b DMA mask configuration failed\n");
516 goto bail2;
517 }
518 ret = pci_set_consistent_dma_mask(pcidev, DMA_BIT_MASK(32));
519 if (ret) {
520 printk(KERN_ERR PFX "32b DMA consistent mask configuration failed\n");
521 goto bail2;
522 }
523 }
524
525 pci_set_master(pcidev);
526
527
528 nesdev = kzalloc(sizeof(struct nes_device), GFP_KERNEL);
529 if (!nesdev) {
530 printk(KERN_ERR PFX "%s: Unable to alloc hardware struct\n", pci_name(pcidev));
531 ret = -ENOMEM;
532 goto bail2;
533 }
534
535 nes_debug(NES_DBG_INIT, "Allocated nes device at %p\n", nesdev);
536 nesdev->pcidev = pcidev;
537 pci_set_drvdata(pcidev, nesdev);
538
539 pci_read_config_byte(pcidev, 0x0008, &hw_rev);
540 nes_debug(NES_DBG_INIT, "hw_rev=%u\n", hw_rev);
541
542 spin_lock_init(&nesdev->indexed_regs_lock);
543
544
545 mmio_regs = ioremap_nocache(pci_resource_start(pcidev, BAR_0),
546 pci_resource_len(pcidev, BAR_0));
547 if (mmio_regs == NULL) {
548 printk(KERN_ERR PFX "Unable to remap BAR0\n");
549 ret = -EIO;
550 goto bail3;
551 }
552 nesdev->regs = mmio_regs;
553 nesdev->index_reg = 0x50 + (PCI_FUNC(pcidev->devfn)*8) + mmio_regs;
554
555
556 nes_write32(nesdev->regs+NES_INT_MASK, 0x7fffffff);
557
558 if (nes_drv_opt & NES_DRV_OPT_ENABLE_MSI) {
559 if (!pci_enable_msi(nesdev->pcidev)) {
560 nesdev->msi_enabled = 1;
561 nes_debug(NES_DBG_INIT, "MSI is enabled for device %s\n",
562 pci_name(pcidev));
563 } else {
564 nes_debug(NES_DBG_INIT, "MSI is disabled by linux for device %s\n",
565 pci_name(pcidev));
566 }
567 } else {
568 nes_debug(NES_DBG_INIT, "MSI not requested due to driver options for device %s\n",
569 pci_name(pcidev));
570 }
571
572 nesdev->csr_start = pci_resource_start(nesdev->pcidev, BAR_0);
573 nesdev->doorbell_region = pci_resource_start(nesdev->pcidev, BAR_1);
574
575
576 nesdev->nesadapter = nes_init_adapter(nesdev, hw_rev);
577 if (!nesdev->nesadapter) {
578 printk(KERN_ERR PFX "Unable to initialize adapter.\n");
579 ret = -ENOMEM;
580 goto bail5;
581 }
582 nesdev->nesadapter->et_rx_coalesce_usecs_irq = interrupt_mod_interval;
583 nesdev->nesadapter->wqm_quanta = wqm_quanta;
584
585
586
587 nesdev->base_doorbell_index = 1;
588 nesdev->doorbell_start = nesdev->nesadapter->doorbell_start;
589 if (nesdev->nesadapter->phy_type[0] == NES_PHY_TYPE_PUMA_1G) {
590 switch (PCI_FUNC(nesdev->pcidev->devfn) %
591 nesdev->nesadapter->port_count) {
592 case 1:
593 nesdev->mac_index = 2;
594 break;
595 case 2:
596 nesdev->mac_index = 1;
597 break;
598 case 3:
599 nesdev->mac_index = 3;
600 break;
601 case 0:
602 default:
603 nesdev->mac_index = 0;
604 }
605 } else {
606 nesdev->mac_index = PCI_FUNC(nesdev->pcidev->devfn) %
607 nesdev->nesadapter->port_count;
608 }
609
610 if ((limit_maxrdreqsz ||
611 ((nesdev->nesadapter->phy_type[0] == NES_PHY_TYPE_GLADIUS) &&
612 (hw_rev == NE020_REV1))) &&
613 (pcie_get_readrq(pcidev) > 256)) {
614 if (pcie_set_readrq(pcidev, 256))
615 printk(KERN_ERR PFX "Unable to set max read request"
616 " to 256 bytes\n");
617 else
618 nes_debug(NES_DBG_INIT, "Max read request size set"
619 " to 256 bytes\n");
620 }
621
622 tasklet_init(&nesdev->dpc_tasklet, nes_dpc, (unsigned long)nesdev);
623
624
625 if (nes_init_cqp(nesdev)) {
626 ret = -ENODEV;
627 goto bail6;
628 }
629
630
631 nes_write32(nesdev->regs+NES_CQE_ALLOC, NES_CQE_ALLOC_NOTIFY_NEXT |
632 PCI_FUNC(nesdev->pcidev->devfn));
633 nes_read32(nesdev->regs+NES_CQE_ALLOC);
634
635
636 nesdev->int_req = (0x101 << PCI_FUNC(nesdev->pcidev->devfn)) |
637 (1 << (PCI_FUNC(nesdev->pcidev->devfn)+16));
638 if (PCI_FUNC(nesdev->pcidev->devfn) < 4) {
639 nesdev->int_req |= (1 << (PCI_FUNC(nesdev->mac_index)+24));
640 }
641
642
643 if (PCI_FUNC(nesdev->pcidev->devfn) == 0) {
644
645 nesdev->intf_int_req = NES_INTF_INT_PCIERR | NES_INTF_INT_CRITERR;
646 nesdev->int_req |= NES_INT_INTF;
647 } else {
648 nesdev->intf_int_req = 0;
649 }
650 nesdev->intf_int_req |= (1 << (PCI_FUNC(nesdev->pcidev->devfn)+16));
651 nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS0, 0);
652 nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS1, 0);
653 nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS2, 0x00001265);
654 nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS4, 0x18021804);
655
656 nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS3, 0x17801790);
657
658
659 nesdev->timer_int_req = 0x101 << PCI_FUNC(nesdev->pcidev->devfn);
660 nesdev->nesadapter->timer_int_req |= nesdev->timer_int_req;
661 nes_debug(NES_DBG_INIT, "setting int_req for function %u, nesdev = 0x%04X, adapter = 0x%04X\n",
662 PCI_FUNC(nesdev->pcidev->devfn),
663 nesdev->timer_int_req, nesdev->nesadapter->timer_int_req);
664
665 nes_write32(nesdev->regs+NES_INTF_INT_MASK, ~(nesdev->intf_int_req));
666
667 list_add_tail(&nesdev->list, &nes_dev_list);
668
669
670 ret = request_irq(pcidev->irq, nes_interrupt, IRQF_SHARED, DRV_NAME, nesdev);
671 if (ret) {
672 printk(KERN_ERR PFX "%s: requested IRQ %u is busy\n",
673 pci_name(pcidev), pcidev->irq);
674 goto bail65;
675 }
676
677 nes_write32(nesdev->regs+NES_INT_MASK, ~nesdev->int_req);
678
679 if (nes_notifiers_registered == 0) {
680 register_inetaddr_notifier(&nes_inetaddr_notifier);
681 register_netevent_notifier(&nes_net_notifier);
682 }
683 nes_notifiers_registered++;
684
685 if (ibnl_add_client(RDMA_NL_NES, RDMA_NL_IWPM_NUM_OPS, nes_nl_cb_table))
686 printk(KERN_ERR PFX "%s[%u]: Failed to add netlink callback\n",
687 __func__, __LINE__);
688
689 ret = iwpm_init(RDMA_NL_NES);
690 if (ret) {
691 printk(KERN_ERR PFX "%s: port mapper initialization failed\n",
692 pci_name(pcidev));
693 goto bail7;
694 }
695
696 INIT_DELAYED_WORK(&nesdev->work, nes_recheck_link_status);
697
698
699 netdev = nes_netdev_init(nesdev, mmio_regs);
700 if (netdev == NULL) {
701 ret = -ENOMEM;
702 goto bail7;
703 }
704
705
706 ret = register_netdev(netdev);
707 if (ret) {
708 printk(KERN_ERR PFX "Unable to register netdev, ret = %d\n", ret);
709 nes_netdev_destroy(netdev);
710 goto bail7;
711 }
712
713 nes_print_macaddr(netdev);
714
715 nesdev->netdev_count++;
716 nesdev->nesadapter->netdev_count++;
717
718 printk(KERN_INFO PFX "%s: NetEffect RNIC driver successfully loaded.\n",
719 pci_name(pcidev));
720 return 0;
721
722 bail7:
723 printk(KERN_ERR PFX "bail7\n");
724 while (nesdev->netdev_count > 0) {
725 nesdev->netdev_count--;
726 nesdev->nesadapter->netdev_count--;
727
728 unregister_netdev(nesdev->netdev[nesdev->netdev_count]);
729 nes_netdev_destroy(nesdev->netdev[nesdev->netdev_count]);
730 }
731
732 nes_debug(NES_DBG_INIT, "netdev_count=%d, nesadapter->netdev_count=%d\n",
733 nesdev->netdev_count, nesdev->nesadapter->netdev_count);
734 ibnl_remove_client(RDMA_NL_NES);
735
736 nes_notifiers_registered--;
737 if (nes_notifiers_registered == 0) {
738 unregister_netevent_notifier(&nes_net_notifier);
739 unregister_inetaddr_notifier(&nes_inetaddr_notifier);
740 }
741
742 list_del(&nesdev->list);
743 nes_destroy_cqp(nesdev);
744
745 bail65:
746 printk(KERN_ERR PFX "bail65\n");
747 free_irq(pcidev->irq, nesdev);
748 if (nesdev->msi_enabled) {
749 pci_disable_msi(pcidev);
750 }
751 bail6:
752 printk(KERN_ERR PFX "bail6\n");
753 tasklet_kill(&nesdev->dpc_tasklet);
754
755 nes_destroy_adapter(nesdev->nesadapter);
756
757 bail5:
758 printk(KERN_ERR PFX "bail5\n");
759 iounmap(nesdev->regs);
760
761 bail3:
762 printk(KERN_ERR PFX "bail3\n");
763 kfree(nesdev);
764
765 bail2:
766 pci_release_regions(pcidev);
767
768 bail1:
769 pci_disable_device(pcidev);
770
771 bail0:
772 return ret;
773}
774
775
776
777
778
779static void nes_remove(struct pci_dev *pcidev)
780{
781 struct nes_device *nesdev = pci_get_drvdata(pcidev);
782 struct net_device *netdev;
783 int netdev_index = 0;
784 unsigned long flags;
785
786 if (nesdev->netdev_count) {
787 netdev = nesdev->netdev[netdev_index];
788 if (netdev) {
789 netif_stop_queue(netdev);
790 unregister_netdev(netdev);
791 nes_netdev_destroy(netdev);
792
793 nesdev->netdev[netdev_index] = NULL;
794 nesdev->netdev_count--;
795 nesdev->nesadapter->netdev_count--;
796 }
797 }
798 ibnl_remove_client(RDMA_NL_NES);
799 iwpm_exit(RDMA_NL_NES);
800
801 nes_notifiers_registered--;
802 if (nes_notifiers_registered == 0) {
803 unregister_netevent_notifier(&nes_net_notifier);
804 unregister_inetaddr_notifier(&nes_inetaddr_notifier);
805 }
806
807 list_del(&nesdev->list);
808 nes_destroy_cqp(nesdev);
809
810 free_irq(pcidev->irq, nesdev);
811 tasklet_kill(&nesdev->dpc_tasklet);
812
813 spin_lock_irqsave(&nesdev->nesadapter->phy_lock, flags);
814 if (nesdev->link_recheck) {
815 spin_unlock_irqrestore(&nesdev->nesadapter->phy_lock, flags);
816 cancel_delayed_work_sync(&nesdev->work);
817 } else {
818 spin_unlock_irqrestore(&nesdev->nesadapter->phy_lock, flags);
819 }
820
821
822 nes_destroy_adapter(nesdev->nesadapter);
823
824 if (nesdev->msi_enabled) {
825 pci_disable_msi(pcidev);
826 }
827
828 iounmap(nesdev->regs);
829 kfree(nesdev);
830
831
832 pci_release_regions(pcidev);
833 pci_disable_device(pcidev);
834 pci_set_drvdata(pcidev, NULL);
835}
836
837
838static struct pci_driver nes_pci_driver = {
839 .name = DRV_NAME,
840 .id_table = nes_pci_table,
841 .probe = nes_probe,
842 .remove = nes_remove,
843};
844
845static ssize_t nes_show_adapter(struct device_driver *ddp, char *buf)
846{
847 unsigned int devfn = 0xffffffff;
848 unsigned char bus_number = 0xff;
849 unsigned int i = 0;
850 struct nes_device *nesdev;
851
852 list_for_each_entry(nesdev, &nes_dev_list, list) {
853 if (i == ee_flsh_adapter) {
854 devfn = nesdev->pcidev->devfn;
855 bus_number = nesdev->pcidev->bus->number;
856 break;
857 }
858 i++;
859 }
860
861 return snprintf(buf, PAGE_SIZE, "%x:%x\n", bus_number, devfn);
862}
863
864static ssize_t nes_store_adapter(struct device_driver *ddp,
865 const char *buf, size_t count)
866{
867 char *p = (char *)buf;
868
869 ee_flsh_adapter = simple_strtoul(p, &p, 10);
870 return strnlen(buf, count);
871}
872
873static ssize_t nes_show_ee_cmd(struct device_driver *ddp, char *buf)
874{
875 u32 eeprom_cmd = 0xdead;
876 u32 i = 0;
877 struct nes_device *nesdev;
878
879 list_for_each_entry(nesdev, &nes_dev_list, list) {
880 if (i == ee_flsh_adapter) {
881 eeprom_cmd = nes_read32(nesdev->regs + NES_EEPROM_COMMAND);
882 break;
883 }
884 i++;
885 }
886 return snprintf(buf, PAGE_SIZE, "0x%x\n", eeprom_cmd);
887}
888
889static ssize_t nes_store_ee_cmd(struct device_driver *ddp,
890 const char *buf, size_t count)
891{
892 char *p = (char *)buf;
893 u32 val;
894 u32 i = 0;
895 struct nes_device *nesdev;
896
897 if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
898 val = simple_strtoul(p, &p, 16);
899 list_for_each_entry(nesdev, &nes_dev_list, list) {
900 if (i == ee_flsh_adapter) {
901 nes_write32(nesdev->regs + NES_EEPROM_COMMAND, val);
902 break;
903 }
904 i++;
905 }
906 }
907 return strnlen(buf, count);
908}
909
910static ssize_t nes_show_ee_data(struct device_driver *ddp, char *buf)
911{
912 u32 eeprom_data = 0xdead;
913 u32 i = 0;
914 struct nes_device *nesdev;
915
916 list_for_each_entry(nesdev, &nes_dev_list, list) {
917 if (i == ee_flsh_adapter) {
918 eeprom_data = nes_read32(nesdev->regs + NES_EEPROM_DATA);
919 break;
920 }
921 i++;
922 }
923
924 return snprintf(buf, PAGE_SIZE, "0x%x\n", eeprom_data);
925}
926
927static ssize_t nes_store_ee_data(struct device_driver *ddp,
928 const char *buf, size_t count)
929{
930 char *p = (char *)buf;
931 u32 val;
932 u32 i = 0;
933 struct nes_device *nesdev;
934
935 if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
936 val = simple_strtoul(p, &p, 16);
937 list_for_each_entry(nesdev, &nes_dev_list, list) {
938 if (i == ee_flsh_adapter) {
939 nes_write32(nesdev->regs + NES_EEPROM_DATA, val);
940 break;
941 }
942 i++;
943 }
944 }
945 return strnlen(buf, count);
946}
947
948static ssize_t nes_show_flash_cmd(struct device_driver *ddp, char *buf)
949{
950 u32 flash_cmd = 0xdead;
951 u32 i = 0;
952 struct nes_device *nesdev;
953
954 list_for_each_entry(nesdev, &nes_dev_list, list) {
955 if (i == ee_flsh_adapter) {
956 flash_cmd = nes_read32(nesdev->regs + NES_FLASH_COMMAND);
957 break;
958 }
959 i++;
960 }
961
962 return snprintf(buf, PAGE_SIZE, "0x%x\n", flash_cmd);
963}
964
965static ssize_t nes_store_flash_cmd(struct device_driver *ddp,
966 const char *buf, size_t count)
967{
968 char *p = (char *)buf;
969 u32 val;
970 u32 i = 0;
971 struct nes_device *nesdev;
972
973 if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
974 val = simple_strtoul(p, &p, 16);
975 list_for_each_entry(nesdev, &nes_dev_list, list) {
976 if (i == ee_flsh_adapter) {
977 nes_write32(nesdev->regs + NES_FLASH_COMMAND, val);
978 break;
979 }
980 i++;
981 }
982 }
983 return strnlen(buf, count);
984}
985
986static ssize_t nes_show_flash_data(struct device_driver *ddp, char *buf)
987{
988 u32 flash_data = 0xdead;
989 u32 i = 0;
990 struct nes_device *nesdev;
991
992 list_for_each_entry(nesdev, &nes_dev_list, list) {
993 if (i == ee_flsh_adapter) {
994 flash_data = nes_read32(nesdev->regs + NES_FLASH_DATA);
995 break;
996 }
997 i++;
998 }
999
1000 return snprintf(buf, PAGE_SIZE, "0x%x\n", flash_data);
1001}
1002
1003static ssize_t nes_store_flash_data(struct device_driver *ddp,
1004 const char *buf, size_t count)
1005{
1006 char *p = (char *)buf;
1007 u32 val;
1008 u32 i = 0;
1009 struct nes_device *nesdev;
1010
1011 if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
1012 val = simple_strtoul(p, &p, 16);
1013 list_for_each_entry(nesdev, &nes_dev_list, list) {
1014 if (i == ee_flsh_adapter) {
1015 nes_write32(nesdev->regs + NES_FLASH_DATA, val);
1016 break;
1017 }
1018 i++;
1019 }
1020 }
1021 return strnlen(buf, count);
1022}
1023
1024static ssize_t nes_show_nonidx_addr(struct device_driver *ddp, char *buf)
1025{
1026 return snprintf(buf, PAGE_SIZE, "0x%x\n", sysfs_nonidx_addr);
1027}
1028
1029static ssize_t nes_store_nonidx_addr(struct device_driver *ddp,
1030 const char *buf, size_t count)
1031{
1032 char *p = (char *)buf;
1033
1034 if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X')
1035 sysfs_nonidx_addr = simple_strtoul(p, &p, 16);
1036
1037 return strnlen(buf, count);
1038}
1039
1040static ssize_t nes_show_nonidx_data(struct device_driver *ddp, char *buf)
1041{
1042 u32 nonidx_data = 0xdead;
1043 u32 i = 0;
1044 struct nes_device *nesdev;
1045
1046 list_for_each_entry(nesdev, &nes_dev_list, list) {
1047 if (i == ee_flsh_adapter) {
1048 nonidx_data = nes_read32(nesdev->regs + sysfs_nonidx_addr);
1049 break;
1050 }
1051 i++;
1052 }
1053
1054 return snprintf(buf, PAGE_SIZE, "0x%x\n", nonidx_data);
1055}
1056
1057static ssize_t nes_store_nonidx_data(struct device_driver *ddp,
1058 const char *buf, size_t count)
1059{
1060 char *p = (char *)buf;
1061 u32 val;
1062 u32 i = 0;
1063 struct nes_device *nesdev;
1064
1065 if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
1066 val = simple_strtoul(p, &p, 16);
1067 list_for_each_entry(nesdev, &nes_dev_list, list) {
1068 if (i == ee_flsh_adapter) {
1069 nes_write32(nesdev->regs + sysfs_nonidx_addr, val);
1070 break;
1071 }
1072 i++;
1073 }
1074 }
1075 return strnlen(buf, count);
1076}
1077
1078static ssize_t nes_show_idx_addr(struct device_driver *ddp, char *buf)
1079{
1080 return snprintf(buf, PAGE_SIZE, "0x%x\n", sysfs_idx_addr);
1081}
1082
1083static ssize_t nes_store_idx_addr(struct device_driver *ddp,
1084 const char *buf, size_t count)
1085{
1086 char *p = (char *)buf;
1087
1088 if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X')
1089 sysfs_idx_addr = simple_strtoul(p, &p, 16);
1090
1091 return strnlen(buf, count);
1092}
1093
1094static ssize_t nes_show_idx_data(struct device_driver *ddp, char *buf)
1095{
1096 u32 idx_data = 0xdead;
1097 u32 i = 0;
1098 struct nes_device *nesdev;
1099
1100 list_for_each_entry(nesdev, &nes_dev_list, list) {
1101 if (i == ee_flsh_adapter) {
1102 idx_data = nes_read_indexed(nesdev, sysfs_idx_addr);
1103 break;
1104 }
1105 i++;
1106 }
1107
1108 return snprintf(buf, PAGE_SIZE, "0x%x\n", idx_data);
1109}
1110
1111static ssize_t nes_store_idx_data(struct device_driver *ddp,
1112 const char *buf, size_t count)
1113{
1114 char *p = (char *)buf;
1115 u32 val;
1116 u32 i = 0;
1117 struct nes_device *nesdev;
1118
1119 if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
1120 val = simple_strtoul(p, &p, 16);
1121 list_for_each_entry(nesdev, &nes_dev_list, list) {
1122 if (i == ee_flsh_adapter) {
1123 nes_write_indexed(nesdev, sysfs_idx_addr, val);
1124 break;
1125 }
1126 i++;
1127 }
1128 }
1129 return strnlen(buf, count);
1130}
1131
1132
1133
1134
1135
1136static ssize_t nes_show_wqm_quanta(struct device_driver *ddp, char *buf)
1137{
1138 u32 wqm_quanta_value = 0xdead;
1139 u32 i = 0;
1140 struct nes_device *nesdev;
1141
1142 list_for_each_entry(nesdev, &nes_dev_list, list) {
1143 if (i == ee_flsh_adapter) {
1144 wqm_quanta_value = nesdev->nesadapter->wqm_quanta;
1145 break;
1146 }
1147 i++;
1148 }
1149
1150 return snprintf(buf, PAGE_SIZE, "0x%X\n", wqm_quanta_value);
1151}
1152
1153
1154
1155
1156
1157static ssize_t nes_store_wqm_quanta(struct device_driver *ddp,
1158 const char *buf, size_t count)
1159{
1160 unsigned long wqm_quanta_value;
1161 u32 wqm_config1;
1162 u32 i = 0;
1163 struct nes_device *nesdev;
1164
1165 if (kstrtoul(buf, 0, &wqm_quanta_value) < 0)
1166 return -EINVAL;
1167
1168 list_for_each_entry(nesdev, &nes_dev_list, list) {
1169 if (i == ee_flsh_adapter) {
1170 nesdev->nesadapter->wqm_quanta = wqm_quanta_value;
1171 wqm_config1 = nes_read_indexed(nesdev,
1172 NES_IDX_WQM_CONFIG1);
1173 nes_write_indexed(nesdev, NES_IDX_WQM_CONFIG1,
1174 ((wqm_quanta_value << 1) |
1175 (wqm_config1 & 0x00000001)));
1176 break;
1177 }
1178 i++;
1179 }
1180 return strnlen(buf, count);
1181}
1182
1183static DRIVER_ATTR(adapter, S_IRUSR | S_IWUSR,
1184 nes_show_adapter, nes_store_adapter);
1185static DRIVER_ATTR(eeprom_cmd, S_IRUSR | S_IWUSR,
1186 nes_show_ee_cmd, nes_store_ee_cmd);
1187static DRIVER_ATTR(eeprom_data, S_IRUSR | S_IWUSR,
1188 nes_show_ee_data, nes_store_ee_data);
1189static DRIVER_ATTR(flash_cmd, S_IRUSR | S_IWUSR,
1190 nes_show_flash_cmd, nes_store_flash_cmd);
1191static DRIVER_ATTR(flash_data, S_IRUSR | S_IWUSR,
1192 nes_show_flash_data, nes_store_flash_data);
1193static DRIVER_ATTR(nonidx_addr, S_IRUSR | S_IWUSR,
1194 nes_show_nonidx_addr, nes_store_nonidx_addr);
1195static DRIVER_ATTR(nonidx_data, S_IRUSR | S_IWUSR,
1196 nes_show_nonidx_data, nes_store_nonidx_data);
1197static DRIVER_ATTR(idx_addr, S_IRUSR | S_IWUSR,
1198 nes_show_idx_addr, nes_store_idx_addr);
1199static DRIVER_ATTR(idx_data, S_IRUSR | S_IWUSR,
1200 nes_show_idx_data, nes_store_idx_data);
1201static DRIVER_ATTR(wqm_quanta, S_IRUSR | S_IWUSR,
1202 nes_show_wqm_quanta, nes_store_wqm_quanta);
1203
1204static int nes_create_driver_sysfs(struct pci_driver *drv)
1205{
1206 int error;
1207 error = driver_create_file(&drv->driver, &driver_attr_adapter);
1208 error |= driver_create_file(&drv->driver, &driver_attr_eeprom_cmd);
1209 error |= driver_create_file(&drv->driver, &driver_attr_eeprom_data);
1210 error |= driver_create_file(&drv->driver, &driver_attr_flash_cmd);
1211 error |= driver_create_file(&drv->driver, &driver_attr_flash_data);
1212 error |= driver_create_file(&drv->driver, &driver_attr_nonidx_addr);
1213 error |= driver_create_file(&drv->driver, &driver_attr_nonidx_data);
1214 error |= driver_create_file(&drv->driver, &driver_attr_idx_addr);
1215 error |= driver_create_file(&drv->driver, &driver_attr_idx_data);
1216 error |= driver_create_file(&drv->driver, &driver_attr_wqm_quanta);
1217 return error;
1218}
1219
1220static void nes_remove_driver_sysfs(struct pci_driver *drv)
1221{
1222 driver_remove_file(&drv->driver, &driver_attr_adapter);
1223 driver_remove_file(&drv->driver, &driver_attr_eeprom_cmd);
1224 driver_remove_file(&drv->driver, &driver_attr_eeprom_data);
1225 driver_remove_file(&drv->driver, &driver_attr_flash_cmd);
1226 driver_remove_file(&drv->driver, &driver_attr_flash_data);
1227 driver_remove_file(&drv->driver, &driver_attr_nonidx_addr);
1228 driver_remove_file(&drv->driver, &driver_attr_nonidx_data);
1229 driver_remove_file(&drv->driver, &driver_attr_idx_addr);
1230 driver_remove_file(&drv->driver, &driver_attr_idx_data);
1231 driver_remove_file(&drv->driver, &driver_attr_wqm_quanta);
1232}
1233
1234
1235
1236
1237static int __init nes_init_module(void)
1238{
1239 int retval;
1240 int retval1;
1241
1242 retval = nes_cm_start();
1243 if (retval) {
1244 printk(KERN_ERR PFX "Unable to start NetEffect iWARP CM.\n");
1245 return retval;
1246 }
1247 retval = pci_register_driver(&nes_pci_driver);
1248 if (retval >= 0) {
1249 retval1 = nes_create_driver_sysfs(&nes_pci_driver);
1250 if (retval1 < 0)
1251 printk(KERN_ERR PFX "Unable to create NetEffect sys files.\n");
1252 }
1253 return retval;
1254}
1255
1256
1257
1258
1259
1260static void __exit nes_exit_module(void)
1261{
1262 nes_cm_stop();
1263 nes_remove_driver_sysfs(&nes_pci_driver);
1264
1265 pci_unregister_driver(&nes_pci_driver);
1266}
1267
1268
1269module_init(nes_init_module);
1270module_exit(nes_exit_module);
1271
