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Merge branch 'sh/for-2.6.28' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal...
[mirror_ubuntu-bionic-kernel.git] / drivers / infiniband / hw / nes / nes.c
CommitLineData
3c2d774c
GS		 1/*
2 * Copyright (c) 2006 - 2008 NetEffect, Inc. All rights reserved.
3 * Copyright (c) 2005 Open Grid Computing, Inc. All rights reserved.
4 *
5 * This software is available to you under a choice of one of two
6 * licenses. You may choose to be licensed under the terms of the GNU
7 * General Public License (GPL) Version 2, available from the file
8 * COPYING in the main directory of this source tree, or the
9 * OpenIB.org BSD license below:
10 *
11 * Redistribution and use in source and binary forms, with or
12 * without modification, are permitted provided that the following
13 * conditions are met:
14 *
15 * - Redistributions of source code must retain the above
16 * copyright notice, this list of conditions and the following
17 * disclaimer.
18 *
19 * - Redistributions in binary form must reproduce the above
20 * copyright notice, this list of conditions and the following
21 * disclaimer in the documentation and/or other materials
22 * provided with the distribution.
23 *
24 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
25 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
26 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
27 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
28 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
29 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
30 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
31 * SOFTWARE.
32 */
33
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 <asm/io.h>
48#include <asm/irq.h>
49#include <asm/byteorder.h>
50#include <rdma/ib_smi.h>
51#include <rdma/ib_verbs.h>
52#include <rdma/ib_pack.h>
53#include <rdma/iw_cm.h>
54
55#include "nes.h"
56
57#include <net/netevent.h>
58#include <net/neighbour.h>
59#include <linux/route.h>
60#include <net/ip_fib.h>
61
62MODULE_AUTHOR("NetEffect");
63MODULE_DESCRIPTION("NetEffect RNIC Low-level iWARP Driver");
64MODULE_LICENSE("Dual BSD/GPL");
65MODULE_VERSION(DRV_VERSION);
66
67int max_mtu = 9000;
3c2d774c
GS		 68int interrupt_mod_interval = 0;
69
70
71/* Interoperability */
72int mpa_version = 1;
de182149 73module_param(mpa_version, int, 0644);
3c2d774c
GS		 74MODULE_PARM_DESC(mpa_version, "MPA version to be used int MPA Req/Resp (0 or 1)");
75
76/* Interoperability */
77int disable_mpa_crc = 0;
de182149 78module_param(disable_mpa_crc, int, 0644);
3c2d774c
GS		 79MODULE_PARM_DESC(disable_mpa_crc, "Disable checking of MPA CRC");
80
81unsigned int send_first = 0;
de182149 82module_param(send_first, int, 0644);
3c2d774c
GS		 83MODULE_PARM_DESC(send_first, "Send RDMA Message First on Active Connection");
84
85
86unsigned int nes_drv_opt = 0;
de182149 87module_param(nes_drv_opt, int, 0644);
3c2d774c
GS		 88MODULE_PARM_DESC(nes_drv_opt, "Driver option parameters");
89
90unsigned int nes_debug_level = 0;
91module_param_named(debug_level, nes_debug_level, uint, 0644);
92MODULE_PARM_DESC(debug_level, "Enable debug output level");
93
2b537c28
CT		 94unsigned int wqm_quanta = 0x10000;
95module_param(wqm_quanta, int, 0644);
96MODULE_PARM_DESC(wqm_quanta, "WQM quanta");
97
63369366
CT		 98static unsigned int limit_maxrdreqsz;
99module_param(limit_maxrdreqsz, bool, 0644);
100MODULE_PARM_DESC(limit_maxrdreqsz, "Limit max read request size to 256 Bytes");
101
3c2d774c 102LIST_HEAD(nes_adapter_list);
1a855fbf 103static LIST_HEAD(nes_dev_list);
3c2d774c
GS		 104
105atomic_t qps_destroyed;
3c2d774c 106
3c2d774c
GS		 107static unsigned int ee_flsh_adapter;
108static unsigned int sysfs_nonidx_addr;
109static unsigned int sysfs_idx_addr;
110
111static struct pci_device_id nes_pci_table[] = {
112 {PCI_VENDOR_ID_NETEFFECT, PCI_DEVICE_ID_NETEFFECT_NE020, PCI_ANY_ID, PCI_ANY_ID},
113 {0}
114};
115
116MODULE_DEVICE_TABLE(pci, nes_pci_table);
117
118static int nes_inetaddr_event(struct notifier_block *, unsigned long, void *);
119static int nes_net_event(struct notifier_block *, unsigned long, void *);
120static int nes_notifiers_registered;
121
122
123static struct notifier_block nes_inetaddr_notifier = {
124 .notifier_call = nes_inetaddr_event
125};
126
127static struct notifier_block nes_net_notifier = {
128 .notifier_call = nes_net_event
129};
130
131
132
133
134/**
135 * nes_inetaddr_event
136 */
137static int nes_inetaddr_event(struct notifier_block *notifier,
138 unsigned long event, void *ptr)
139{
140 struct in_ifaddr *ifa = ptr;
141 struct net_device *event_netdev = ifa->ifa_dev->dev;
142 struct nes_device *nesdev;
143 struct net_device *netdev;
144 struct nes_vnic *nesvnic;
145 unsigned int addr;
146 unsigned int mask;
147
148 addr = ntohl(ifa->ifa_address);
149 mask = ntohl(ifa->ifa_mask);
e4477031
RD		 150 nes_debug(NES_DBG_NETDEV, "nes_inetaddr_event: ip address " NIPQUAD_FMT
151 ", netmask " NIPQUAD_FMT ".\n",
152 HIPQUAD(addr), HIPQUAD(mask));
3c2d774c
GS		 153 list_for_each_entry(nesdev, &nes_dev_list, list) {
154 nes_debug(NES_DBG_NETDEV, "Nesdev list entry = 0x%p. (%s)\n",
155 nesdev, nesdev->netdev[0]->name);
156 netdev = nesdev->netdev[0];
157 nesvnic = netdev_priv(netdev);
158 if (netdev == event_netdev) {
159 if (nesvnic->rdma_enabled == 0) {
160 nes_debug(NES_DBG_NETDEV, "Returning without processing event for %s since"
161 " RDMA is not enabled.\n",
162 netdev->name);
163 return NOTIFY_OK;
164 }
165 /* we have ifa->ifa_address/mask here if we need it */
166 switch (event) {
167 case NETDEV_DOWN:
168 nes_debug(NES_DBG_NETDEV, "event:DOWN\n");
169 nes_write_indexed(nesdev,
170 NES_IDX_DST_IP_ADDR+(0x10*PCI_FUNC(nesdev->pcidev->devfn)), 0);
171
172 nes_manage_arp_cache(netdev, netdev->dev_addr,
173 ntohl(nesvnic->local_ipaddr), NES_ARP_DELETE);
174 nesvnic->local_ipaddr = 0;
175 return NOTIFY_OK;
176 break;
177 case NETDEV_UP:
178 nes_debug(NES_DBG_NETDEV, "event:UP\n");
179
180 if (nesvnic->local_ipaddr != 0) {
181 nes_debug(NES_DBG_NETDEV, "Interface already has local_ipaddr\n");
182 return NOTIFY_OK;
183 }
184 /* Add the address to the IP table */
185 nesvnic->local_ipaddr = ifa->ifa_address;
186
187 nes_write_indexed(nesdev,
188 NES_IDX_DST_IP_ADDR+(0x10*PCI_FUNC(nesdev->pcidev->devfn)),
189 ntohl(ifa->ifa_address));
190 nes_manage_arp_cache(netdev, netdev->dev_addr,
191 ntohl(nesvnic->local_ipaddr), NES_ARP_ADD);
192 return NOTIFY_OK;
193 break;
194 default:
195 break;
196 }
197 }
198 }
199
200 return NOTIFY_DONE;
201}
202
203
204/**
205 * nes_net_event
206 */
207static int nes_net_event(struct notifier_block *notifier,
208 unsigned long event, void *ptr)
209{
210 struct neighbour *neigh = ptr;
211 struct nes_device *nesdev;
212 struct net_device *netdev;
213 struct nes_vnic *nesvnic;
214
215 switch (event) {
216 case NETEVENT_NEIGH_UPDATE:
217 list_for_each_entry(nesdev, &nes_dev_list, list) {
218 /* nes_debug(NES_DBG_NETDEV, "Nesdev list entry = 0x%p.\n", nesdev); */
219 netdev = nesdev->netdev[0];
220 nesvnic = netdev_priv(netdev);
221 if (netdev == neigh->dev) {
222 if (nesvnic->rdma_enabled == 0) {
223 nes_debug(NES_DBG_NETDEV, "Skipping device %s since no RDMA\n",
224 netdev->name);
225 } else {
226 if (neigh->nud_state & NUD_VALID) {
227 nes_manage_arp_cache(neigh->dev, neigh->ha,
228 ntohl(*(__be32 *)neigh->primary_key), NES_ARP_ADD);
229 } else {
230 nes_manage_arp_cache(neigh->dev, neigh->ha,
231 ntohl(*(__be32 *)neigh->primary_key), NES_ARP_DELETE);
232 }
233 }
234 return NOTIFY_OK;
235 }
236 }
237 break;
238 default:
239 nes_debug(NES_DBG_NETDEV, "NETEVENT_ %lu undefined\n", event);
240 break;
241 }
242
243 return NOTIFY_DONE;
244}
245
246
247/**
248 * nes_add_ref
249 */
250void nes_add_ref(struct ib_qp *ibqp)
251{
252 struct nes_qp *nesqp;
253
254 nesqp = to_nesqp(ibqp);
255 nes_debug(NES_DBG_QP, "Bumping refcount for QP%u. Pre-inc value = %u\n",
256 ibqp->qp_num, atomic_read(&nesqp->refcount));
257 atomic_inc(&nesqp->refcount);
258}
259
260static void nes_cqp_rem_ref_callback(struct nes_device *nesdev, struct nes_cqp_request *cqp_request)
261{
262 unsigned long flags;
263 struct nes_qp *nesqp = cqp_request->cqp_callback_pointer;
264 struct nes_adapter *nesadapter = nesdev->nesadapter;
265 u32 qp_id;
266
267 atomic_inc(&qps_destroyed);
268
269 /* Free the control structures */
270
271 qp_id = nesqp->hwqp.qp_id;
272 if (nesqp->pbl_vbase) {
273 pci_free_consistent(nesdev->pcidev, nesqp->qp_mem_size,
274 nesqp->hwqp.q2_vbase, nesqp->hwqp.q2_pbase);
275 spin_lock_irqsave(&nesadapter->pbl_lock, flags);
276 nesadapter->free_256pbl++;
277 spin_unlock_irqrestore(&nesadapter->pbl_lock, flags);
278 pci_free_consistent(nesdev->pcidev, 256, nesqp->pbl_vbase, nesqp->pbl_pbase);
279 nesqp->pbl_vbase = NULL;
280
281 } else {
282 pci_free_consistent(nesdev->pcidev, nesqp->qp_mem_size,
283 nesqp->hwqp.sq_vbase, nesqp->hwqp.sq_pbase);
284 }
285 nes_free_resource(nesadapter, nesadapter->allocated_qps, nesqp->hwqp.qp_id);
286
6492cdf3 287 nesadapter->qp_table[nesqp->hwqp.qp_id-NES_FIRST_QPN] = NULL;
3c2d774c
GS		 288 kfree(nesqp->allocated_buffer);
289
290}
291
292/**
293 * nes_rem_ref
294 */
295void nes_rem_ref(struct ib_qp *ibqp)
296{
297 u64 u64temp;
298 struct nes_qp *nesqp;
299 struct nes_vnic *nesvnic = to_nesvnic(ibqp->device);
300 struct nes_device *nesdev = nesvnic->nesdev;
3c2d774c
GS		 301 struct nes_hw_cqp_wqe *cqp_wqe;
302 struct nes_cqp_request *cqp_request;
303 u32 opcode;
304
305 nesqp = to_nesqp(ibqp);
306
307 if (atomic_read(&nesqp->refcount) == 0) {
308 printk(KERN_INFO PFX "%s: Reference count already 0 for QP%d, last aeq = 0x%04X.\n",
33718363 309 __func__, ibqp->qp_num, nesqp->last_aeq);
3c2d774c
GS		 310 BUG();
311 }
312
313 if (atomic_dec_and_test(&nesqp->refcount)) {
3c2d774c
GS		 314 /* Destroy the QP */
315 cqp_request = nes_get_cqp_request(nesdev);
316 if (cqp_request == NULL) {
317 nes_debug(NES_DBG_QP, "Failed to get a cqp_request.\n");
318 return;
319 }
320 cqp_request->waiting = 0;
321 cqp_request->callback = 1;
322 cqp_request->cqp_callback = nes_cqp_rem_ref_callback;
323 cqp_request->cqp_callback_pointer = nesqp;
324 cqp_wqe = &cqp_request->cqp_wqe;
325
326 nes_fill_init_cqp_wqe(cqp_wqe, nesdev);
327 opcode = NES_CQP_DESTROY_QP | NES_CQP_QP_TYPE_IWARP;
328
329 if (nesqp->hte_added) {
330 opcode |= NES_CQP_QP_DEL_HTE;
331 nesqp->hte_added = 0;
332 }
333 set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_OPCODE_IDX, opcode);
334 set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_ID_IDX, nesqp->hwqp.qp_id);
335 u64temp = (u64)nesqp->nesqp_context_pbase;
336 set_wqe_64bit_value(cqp_wqe->wqe_words, NES_CQP_QP_WQE_CONTEXT_LOW_IDX, u64temp);
8294f297 337 nes_post_cqp_request(nesdev, cqp_request);
3c2d774c
GS		 338 }
339}
340
341
342/**
343 * nes_get_qp
344 */
345struct ib_qp *nes_get_qp(struct ib_device *device, int qpn)
346{
347 struct nes_vnic *nesvnic = to_nesvnic(device);
348 struct nes_device *nesdev = nesvnic->nesdev;
349 struct nes_adapter *nesadapter = nesdev->nesadapter;
350
351 if ((qpn < NES_FIRST_QPN) || (qpn >= (NES_FIRST_QPN + nesadapter->max_qp)))
352 return NULL;
353
354 return &nesadapter->qp_table[qpn - NES_FIRST_QPN]->ibqp;
355}
356
357
358/**
359 * nes_print_macaddr
360 */
361static void nes_print_macaddr(struct net_device *netdev)
362{
2bd01c5d 363 DECLARE_MAC_BUF(mac);
3c2d774c 364
2bd01c5d
RD		 365 nes_debug(NES_DBG_INIT, "%s: %s, IRQ %u\n",
366 netdev->name, print_mac(mac, netdev->dev_addr), netdev->irq);
367}
3c2d774c
GS		 368
369/**
370 * nes_interrupt - handle interrupts
371 */
372static irqreturn_t nes_interrupt(int irq, void *dev_id)
373{
374 struct nes_device *nesdev = (struct nes_device *)dev_id;
375 int handled = 0;
376 u32 int_mask;
377 u32 int_req;
378 u32 int_stat;
379 u32 intf_int_stat;
380 u32 timer_stat;
381
382 if (nesdev->msi_enabled) {
383 /* No need to read the interrupt pending register if msi is enabled */
384 handled = 1;
385 } else {
386 if (unlikely(nesdev->nesadapter->hw_rev == NE020_REV)) {
387 /* Master interrupt enable provides synchronization for kicking off bottom half
388 when interrupt sharing is going on */
389 int_mask = nes_read32(nesdev->regs + NES_INT_MASK);
390 if (int_mask & 0x80000000) {
391 /* Check interrupt status to see if this might be ours */
392 int_stat = nes_read32(nesdev->regs + NES_INT_STAT);
393 int_req = nesdev->int_req;
394 if (int_stat&int_req) {
395 /* if interesting CEQ or AEQ is pending, claim the interrupt */
396 if ((int_stat&int_req) & (~(NES_INT_TIMER|NES_INT_INTF))) {
397 handled = 1;
398 } else {
399 if (((int_stat & int_req) & NES_INT_TIMER) == NES_INT_TIMER) {
400 /* Timer might be running but might be for another function */
401 timer_stat = nes_read32(nesdev->regs + NES_TIMER_STAT);
402 if ((timer_stat & nesdev->timer_int_req) != 0) {
403 handled = 1;
404 }
405 }
406 if ((((int_stat & int_req) & NES_INT_INTF) == NES_INT_INTF) &&
407 (handled == 0)) {
408 intf_int_stat = nes_read32(nesdev->regs+NES_INTF_INT_STAT);
409 if ((intf_int_stat & nesdev->intf_int_req) != 0) {
410 handled = 1;
411 }
412 }
413 }
414 if (handled) {
415 nes_write32(nesdev->regs+NES_INT_MASK, int_mask & (~0x80000000));
416 int_mask = nes_read32(nesdev->regs+NES_INT_MASK);
417 /* Save off the status to save an additional read */
418 nesdev->int_stat = int_stat;
419 nesdev->napi_isr_ran = 1;
420 }
421 }
422 }
423 } else {
424 handled = nes_read32(nesdev->regs+NES_INT_PENDING);
425 }
426 }
427
428 if (handled) {
429
430 if (nes_napi_isr(nesdev) == 0) {
431 tasklet_schedule(&nesdev->dpc_tasklet);
432
433 }
434 return IRQ_HANDLED;
435 } else {
436 return IRQ_NONE;
437 }
438}
439
440
441/**
442 * nes_probe - Device initialization
443 */
444static int __devinit nes_probe(struct pci_dev *pcidev, const struct pci_device_id *ent)
445{
446 struct net_device *netdev = NULL;
447 struct nes_device *nesdev = NULL;
448 int ret = 0;
449 struct nes_vnic *nesvnic = NULL;
450 void __iomem *mmio_regs = NULL;
451 u8 hw_rev;
452
453 assert(pcidev != NULL);
454 assert(ent != NULL);
455
456 printk(KERN_INFO PFX "NetEffect RNIC driver v%s loading. (%s)\n",
457 DRV_VERSION, pci_name(pcidev));
458
459 ret = pci_enable_device(pcidev);
460 if (ret) {
461 printk(KERN_ERR PFX "Unable to enable PCI device. (%s)\n", pci_name(pcidev));
462 goto bail0;
463 }
464
465 nes_debug(NES_DBG_INIT, "BAR0 (@0x%08lX) size = 0x%lX bytes\n",
466 (long unsigned int)pci_resource_start(pcidev, BAR_0),
467 (long unsigned int)pci_resource_len(pcidev, BAR_0));
468 nes_debug(NES_DBG_INIT, "BAR1 (@0x%08lX) size = 0x%lX bytes\n",
469 (long unsigned int)pci_resource_start(pcidev, BAR_1),
470 (long unsigned int)pci_resource_len(pcidev, BAR_1));
471
472 /* Make sure PCI base addr are MMIO */
473 if (!(pci_resource_flags(pcidev, BAR_0) & IORESOURCE_MEM) ||
474 !(pci_resource_flags(pcidev, BAR_1) & IORESOURCE_MEM)) {
475 printk(KERN_ERR PFX "PCI regions not an MMIO resource\n");
476 ret = -ENODEV;
477 goto bail1;
478 }
479
480 /* Reserve PCI I/O and memory resources */
481 ret = pci_request_regions(pcidev, DRV_NAME);
482 if (ret) {
483 printk(KERN_ERR PFX "Unable to request regions. (%s)\n", pci_name(pcidev));
484 goto bail1;
485 }
486
487 if ((sizeof(dma_addr_t) > 4)) {
488 ret = pci_set_dma_mask(pcidev, DMA_64BIT_MASK);
489 if (ret < 0) {
490 printk(KERN_ERR PFX "64b DMA mask configuration failed\n");
491 goto bail2;
492 }
493 ret = pci_set_consistent_dma_mask(pcidev, DMA_64BIT_MASK);
494 if (ret) {
495 printk(KERN_ERR PFX "64b DMA consistent mask configuration failed\n");
496 goto bail2;
497 }
498 } else {
499 ret = pci_set_dma_mask(pcidev, DMA_32BIT_MASK);
500 if (ret < 0) {
501 printk(KERN_ERR PFX "32b DMA mask configuration failed\n");
502 goto bail2;
503 }
504 ret = pci_set_consistent_dma_mask(pcidev, DMA_32BIT_MASK);
505 if (ret) {
506 printk(KERN_ERR PFX "32b DMA consistent mask configuration failed\n");
507 goto bail2;
508 }
509 }
510
511 pci_set_master(pcidev);
512
513 /* Allocate hardware structure */
514 nesdev = kzalloc(sizeof(struct nes_device), GFP_KERNEL);
515 if (!nesdev) {
516 printk(KERN_ERR PFX "%s: Unable to alloc hardware struct\n", pci_name(pcidev));
517 ret = -ENOMEM;
518 goto bail2;
519 }
520
521 nes_debug(NES_DBG_INIT, "Allocated nes device at %p\n", nesdev);
522 nesdev->pcidev = pcidev;
523 pci_set_drvdata(pcidev, nesdev);
524
525 pci_read_config_byte(pcidev, 0x0008, &hw_rev);
526 nes_debug(NES_DBG_INIT, "hw_rev=%u\n", hw_rev);
527
528 spin_lock_init(&nesdev->indexed_regs_lock);
529
530 /* Remap the PCI registers in adapter BAR0 to kernel VA space */
531 mmio_regs = ioremap_nocache(pci_resource_start(pcidev, BAR_0), sizeof(mmio_regs));
532 if (mmio_regs == NULL) {
533 printk(KERN_ERR PFX "Unable to remap BAR0\n");
534 ret = -EIO;
535 goto bail3;
536 }
537 nesdev->regs = mmio_regs;
538 nesdev->index_reg = 0x50 + (PCI_FUNC(pcidev->devfn)*8) + mmio_regs;
539
540 /* Ensure interrupts are disabled */
541 nes_write32(nesdev->regs+NES_INT_MASK, 0x7fffffff);
542
543 if (nes_drv_opt & NES_DRV_OPT_ENABLE_MSI) {
544 if (!pci_enable_msi(nesdev->pcidev)) {
545 nesdev->msi_enabled = 1;
546 nes_debug(NES_DBG_INIT, "MSI is enabled for device %s\n",
547 pci_name(pcidev));
548 } else {
549 nes_debug(NES_DBG_INIT, "MSI is disabled by linux for device %s\n",
550 pci_name(pcidev));
551 }
552 } else {
553 nes_debug(NES_DBG_INIT, "MSI not requested due to driver options for device %s\n",
554 pci_name(pcidev));
555 }
556
557 nesdev->csr_start = pci_resource_start(nesdev->pcidev, BAR_0);
558 nesdev->doorbell_region = pci_resource_start(nesdev->pcidev, BAR_1);
559
560 /* Init the adapter */
561 nesdev->nesadapter = nes_init_adapter(nesdev, hw_rev);
3c2d774c
GS		 562 if (!nesdev->nesadapter) {
563 printk(KERN_ERR PFX "Unable to initialize adapter.\n");
564 ret = -ENOMEM;
565 goto bail5;
566 }
a4435feb 567 nesdev->nesadapter->et_rx_coalesce_usecs_irq = interrupt_mod_interval;
2b537c28 568 nesdev->nesadapter->wqm_quanta = wqm_quanta;
3c2d774c
GS		 569
570 /* nesdev->base_doorbell_index =
571 nesdev->nesadapter->pd_config_base[PCI_FUNC(nesdev->pcidev->devfn)]; */
572 nesdev->base_doorbell_index = 1;
573 nesdev->doorbell_start = nesdev->nesadapter->doorbell_start;
fcb7ad31
CT		 574 if (nesdev->nesadapter->phy_type[0] == NES_PHY_TYPE_PUMA_1G) {
575 switch (PCI_FUNC(nesdev->pcidev->devfn) %
576 nesdev->nesadapter->port_count) {
577 case 1:
578 nesdev->mac_index = 2;
579 break;
580 case 2:
581 nesdev->mac_index = 1;
582 break;
583 case 3:
584 nesdev->mac_index = 3;
585 break;
586 case 0:
587 default:
588 nesdev->mac_index = 0;
589 }
590 } else {
591 nesdev->mac_index = PCI_FUNC(nesdev->pcidev->devfn) %
592 nesdev->nesadapter->port_count;
593 }
3c2d774c 594
63369366
CT		 595 if ((limit_maxrdreqsz ||
596 ((nesdev->nesadapter->phy_type[0] == NES_PHY_TYPE_GLADIUS) &&
597 (hw_rev == NE020_REV1))) &&
598 (pcie_get_readrq(pcidev) > 256)) {
599 if (pcie_set_readrq(pcidev, 256))
600 printk(KERN_ERR PFX "Unable to set max read request"
601 " to 256 bytes\n");
602 else
603 nes_debug(NES_DBG_INIT, "Max read request size set"
604 " to 256 bytes\n");
605 }
606
3c2d774c
GS		 607 tasklet_init(&nesdev->dpc_tasklet, nes_dpc, (unsigned long)nesdev);
608
609 /* bring up the Control QP */
610 if (nes_init_cqp(nesdev)) {
611 ret = -ENODEV;
612 goto bail6;
613 }
614
615 /* Arm the CCQ */
616 nes_write32(nesdev->regs+NES_CQE_ALLOC, NES_CQE_ALLOC_NOTIFY_NEXT |
617 PCI_FUNC(nesdev->pcidev->devfn));
618 nes_read32(nesdev->regs+NES_CQE_ALLOC);
619
620 /* Enable the interrupts */
621 nesdev->int_req = (0x101 << PCI_FUNC(nesdev->pcidev->devfn)) |
622 (1 << (PCI_FUNC(nesdev->pcidev->devfn)+16));
623 if (PCI_FUNC(nesdev->pcidev->devfn) < 4) {
fcb7ad31 624 nesdev->int_req |= (1 << (PCI_FUNC(nesdev->mac_index)+24));
3c2d774c
GS		 625 }
626
627 /* TODO: This really should be the first driver to load, not function 0 */
628 if (PCI_FUNC(nesdev->pcidev->devfn) == 0) {
629 /* pick up PCI and critical errors if the first driver to load */
630 nesdev->intf_int_req = NES_INTF_INT_PCIERR | NES_INTF_INT_CRITERR;
631 nesdev->int_req |= NES_INT_INTF;
632 } else {
633 nesdev->intf_int_req = 0;
634 }
635 nesdev->intf_int_req |= (1 << (PCI_FUNC(nesdev->pcidev->devfn)+16));
636 nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS0, 0);
637 nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS1, 0);
638 nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS2, 0x00001265);
639 nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS4, 0x18021804);
640
641 nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS3, 0x17801790);
642
643 /* deal with both periodic and one_shot */
644 nesdev->timer_int_req = 0x101 << PCI_FUNC(nesdev->pcidev->devfn);
645 nesdev->nesadapter->timer_int_req |= nesdev->timer_int_req;
646 nes_debug(NES_DBG_INIT, "setting int_req for function %u, nesdev = 0x%04X, adapter = 0x%04X\n",
647 PCI_FUNC(nesdev->pcidev->devfn),
648 nesdev->timer_int_req, nesdev->nesadapter->timer_int_req);
649
650 nes_write32(nesdev->regs+NES_INTF_INT_MASK, ~(nesdev->intf_int_req));
651
652 list_add_tail(&nesdev->list, &nes_dev_list);
653
654 /* Request an interrupt line for the driver */
655 ret = request_irq(pcidev->irq, nes_interrupt, IRQF_SHARED, DRV_NAME, nesdev);
656 if (ret) {
657 printk(KERN_ERR PFX "%s: requested IRQ %u is busy\n",
658 pci_name(pcidev), pcidev->irq);
659 goto bail65;
660 }
661
662 nes_write32(nesdev->regs+NES_INT_MASK, ~nesdev->int_req);
663
664 if (nes_notifiers_registered == 0) {
665 register_inetaddr_notifier(&nes_inetaddr_notifier);
666 register_netevent_notifier(&nes_net_notifier);
667 }
668 nes_notifiers_registered++;
669
670 /* Initialize network devices */
671 if ((netdev = nes_netdev_init(nesdev, mmio_regs)) == NULL) {
672 goto bail7;
673 }
674
675 /* Register network device */
676 ret = register_netdev(netdev);
677 if (ret) {
678 printk(KERN_ERR PFX "Unable to register netdev, ret = %d\n", ret);
679 nes_netdev_destroy(netdev);
680 goto bail7;
681 }
682
683 nes_print_macaddr(netdev);
684 /* create a CM core for this netdev */
685 nesvnic = netdev_priv(netdev);
686
687 nesdev->netdev_count++;
688 nesdev->nesadapter->netdev_count++;
689
690
691 printk(KERN_ERR PFX "%s: NetEffect RNIC driver successfully loaded.\n",
692 pci_name(pcidev));
693 return 0;
694
695 bail7:
696 printk(KERN_ERR PFX "bail7\n");
697 while (nesdev->netdev_count > 0) {
698 nesdev->netdev_count--;
699 nesdev->nesadapter->netdev_count--;
700
701 unregister_netdev(nesdev->netdev[nesdev->netdev_count]);
702 nes_netdev_destroy(nesdev->netdev[nesdev->netdev_count]);
703 }
704
705 nes_debug(NES_DBG_INIT, "netdev_count=%d, nesadapter->netdev_count=%d\n",
706 nesdev->netdev_count, nesdev->nesadapter->netdev_count);
707
708 nes_notifiers_registered--;
709 if (nes_notifiers_registered == 0) {
710 unregister_netevent_notifier(&nes_net_notifier);
711 unregister_inetaddr_notifier(&nes_inetaddr_notifier);
712 }
713
714 list_del(&nesdev->list);
715 nes_destroy_cqp(nesdev);
716
717 bail65:
718 printk(KERN_ERR PFX "bail65\n");
719 free_irq(pcidev->irq, nesdev);
720 if (nesdev->msi_enabled) {
721 pci_disable_msi(pcidev);
722 }
723 bail6:
724 printk(KERN_ERR PFX "bail6\n");
725 tasklet_kill(&nesdev->dpc_tasklet);
726 /* Deallocate the Adapter Structure */
727 nes_destroy_adapter(nesdev->nesadapter);
728
729 bail5:
730 printk(KERN_ERR PFX "bail5\n");
731 iounmap(nesdev->regs);
732
733 bail3:
734 printk(KERN_ERR PFX "bail3\n");
735 kfree(nesdev);
736
737 bail2:
738 pci_release_regions(pcidev);
739
740 bail1:
741 pci_disable_device(pcidev);
742
743 bail0:
744 return ret;
745}
746
747
748/**
749 * nes_remove - unload from kernel
750 */
751static void __devexit nes_remove(struct pci_dev *pcidev)
752{
753 struct nes_device *nesdev = pci_get_drvdata(pcidev);
754 struct net_device *netdev;
755 int netdev_index = 0;
756
757 if (nesdev->netdev_count) {
758 netdev = nesdev->netdev[netdev_index];
759 if (netdev) {
760 netif_stop_queue(netdev);
761 unregister_netdev(netdev);
762 nes_netdev_destroy(netdev);
763
764 nesdev->netdev[netdev_index] = NULL;
765 nesdev->netdev_count--;
766 nesdev->nesadapter->netdev_count--;
767 }
768 }
769
770 nes_notifiers_registered--;
771 if (nes_notifiers_registered == 0) {
772 unregister_netevent_notifier(&nes_net_notifier);
773 unregister_inetaddr_notifier(&nes_inetaddr_notifier);
774 }
775
776 list_del(&nesdev->list);
777 nes_destroy_cqp(nesdev);
4cd1e5eb
RD		 778
779 free_irq(pcidev->irq, nesdev);
3c2d774c
GS		 780 tasklet_kill(&nesdev->dpc_tasklet);
781
782 /* Deallocate the Adapter Structure */
783 nes_destroy_adapter(nesdev->nesadapter);
784
3c2d774c
GS		 785 if (nesdev->msi_enabled) {
786 pci_disable_msi(pcidev);
787 }
788
789 iounmap(nesdev->regs);
790 kfree(nesdev);
791
792 /* nes_debug(NES_DBG_SHUTDOWN, "calling pci_release_regions.\n"); */
793 pci_release_regions(pcidev);
794 pci_disable_device(pcidev);
795 pci_set_drvdata(pcidev, NULL);
796}
797
798
799static struct pci_driver nes_pci_driver = {
800 .name = DRV_NAME,
801 .id_table = nes_pci_table,
802 .probe = nes_probe,
803 .remove = __devexit_p(nes_remove),
804};
805
806static ssize_t nes_show_adapter(struct device_driver *ddp, char *buf)
807{
808 unsigned int devfn = 0xffffffff;
809 unsigned char bus_number = 0xff;
810 unsigned int i = 0;
811 struct nes_device *nesdev;
812
813 list_for_each_entry(nesdev, &nes_dev_list, list) {
814 if (i == ee_flsh_adapter) {
fcb7ad31
CT		 815 devfn = nesdev->pcidev->devfn;
816 bus_number = nesdev->pcidev->bus->number;
3c2d774c
GS		 817 break;
818 }
819 i++;
820 }
821
fcb7ad31 822 return snprintf(buf, PAGE_SIZE, "%x:%x\n", bus_number, devfn);
3c2d774c
GS		 823}
824
825static ssize_t nes_store_adapter(struct device_driver *ddp,
826 const char *buf, size_t count)
827{
828 char *p = (char *)buf;
829
830 ee_flsh_adapter = simple_strtoul(p, &p, 10);
831 return strnlen(buf, count);
832}
833
834static ssize_t nes_show_ee_cmd(struct device_driver *ddp, char *buf)
835{
836 u32 eeprom_cmd = 0xdead;
837 u32 i = 0;
838 struct nes_device *nesdev;
839
840 list_for_each_entry(nesdev, &nes_dev_list, list) {
841 if (i == ee_flsh_adapter) {
842 eeprom_cmd = nes_read32(nesdev->regs + NES_EEPROM_COMMAND);
843 break;
844 }
845 i++;
846 }
847 return snprintf(buf, PAGE_SIZE, "0x%x\n", eeprom_cmd);
848}
849
850static ssize_t nes_store_ee_cmd(struct device_driver *ddp,
851 const char *buf, size_t count)
852{
853 char *p = (char *)buf;
854 u32 val;
855 u32 i = 0;
856 struct nes_device *nesdev;
857
858 if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
859 val = simple_strtoul(p, &p, 16);
860 list_for_each_entry(nesdev, &nes_dev_list, list) {
861 if (i == ee_flsh_adapter) {
862 nes_write32(nesdev->regs + NES_EEPROM_COMMAND, val);
863 break;
864 }
865 i++;
866 }
867 }
868 return strnlen(buf, count);
869}
870
871static ssize_t nes_show_ee_data(struct device_driver *ddp, char *buf)
872{
873 u32 eeprom_data = 0xdead;
874 u32 i = 0;
875 struct nes_device *nesdev;
876
877 list_for_each_entry(nesdev, &nes_dev_list, list) {
878 if (i == ee_flsh_adapter) {
879 eeprom_data = nes_read32(nesdev->regs + NES_EEPROM_DATA);
880 break;
881 }
882 i++;
883 }
884
885 return snprintf(buf, PAGE_SIZE, "0x%x\n", eeprom_data);
886}
887
888static ssize_t nes_store_ee_data(struct device_driver *ddp,
889 const char *buf, size_t count)
890{
891 char *p = (char *)buf;
892 u32 val;
893 u32 i = 0;
894 struct nes_device *nesdev;
895
896 if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
897 val = simple_strtoul(p, &p, 16);
898 list_for_each_entry(nesdev, &nes_dev_list, list) {
899 if (i == ee_flsh_adapter) {
900 nes_write32(nesdev->regs + NES_EEPROM_DATA, val);
901 break;
902 }
903 i++;
904 }
905 }
906 return strnlen(buf, count);
907}
908
909static ssize_t nes_show_flash_cmd(struct device_driver *ddp, char *buf)
910{
911 u32 flash_cmd = 0xdead;
912 u32 i = 0;
913 struct nes_device *nesdev;
914
915 list_for_each_entry(nesdev, &nes_dev_list, list) {
916 if (i == ee_flsh_adapter) {
917 flash_cmd = nes_read32(nesdev->regs + NES_FLASH_COMMAND);
918 break;
919 }
920 i++;
921 }
922
923 return snprintf(buf, PAGE_SIZE, "0x%x\n", flash_cmd);
924}
925
926static ssize_t nes_store_flash_cmd(struct device_driver *ddp,
927 const char *buf, size_t count)
928{
929 char *p = (char *)buf;
930 u32 val;
931 u32 i = 0;
932 struct nes_device *nesdev;
933
934 if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
935 val = simple_strtoul(p, &p, 16);
936 list_for_each_entry(nesdev, &nes_dev_list, list) {
937 if (i == ee_flsh_adapter) {
938 nes_write32(nesdev->regs + NES_FLASH_COMMAND, val);
939 break;
940 }
941 i++;
942 }
943 }
944 return strnlen(buf, count);
945}
946
947static ssize_t nes_show_flash_data(struct device_driver *ddp, char *buf)
948{
949 u32 flash_data = 0xdead;
950 u32 i = 0;
951 struct nes_device *nesdev;
952
953 list_for_each_entry(nesdev, &nes_dev_list, list) {
954 if (i == ee_flsh_adapter) {
955 flash_data = nes_read32(nesdev->regs + NES_FLASH_DATA);
956 break;
957 }
958 i++;
959 }
960
961 return snprintf(buf, PAGE_SIZE, "0x%x\n", flash_data);
962}
963
964static ssize_t nes_store_flash_data(struct device_driver *ddp,
965 const char *buf, size_t count)
966{
967 char *p = (char *)buf;
968 u32 val;
969 u32 i = 0;
970 struct nes_device *nesdev;
971
972 if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
973 val = simple_strtoul(p, &p, 16);
974 list_for_each_entry(nesdev, &nes_dev_list, list) {
975 if (i == ee_flsh_adapter) {
976 nes_write32(nesdev->regs + NES_FLASH_DATA, val);
977 break;
978 }
979 i++;
980 }
981 }
982 return strnlen(buf, count);
983}
984
985static ssize_t nes_show_nonidx_addr(struct device_driver *ddp, char *buf)
986{
987 return snprintf(buf, PAGE_SIZE, "0x%x\n", sysfs_nonidx_addr);
988}
989
990static ssize_t nes_store_nonidx_addr(struct device_driver *ddp,
991 const char *buf, size_t count)
992{
993 char *p = (char *)buf;
994
995 if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X')
996 sysfs_nonidx_addr = simple_strtoul(p, &p, 16);
997
998 return strnlen(buf, count);
999}
1000
1001static ssize_t nes_show_nonidx_data(struct device_driver *ddp, char *buf)
1002{
1003 u32 nonidx_data = 0xdead;
1004 u32 i = 0;
1005 struct nes_device *nesdev;
1006
1007 list_for_each_entry(nesdev, &nes_dev_list, list) {
1008 if (i == ee_flsh_adapter) {
1009 nonidx_data = nes_read32(nesdev->regs + sysfs_nonidx_addr);
1010 break;
1011 }
1012 i++;
1013 }
1014
1015 return snprintf(buf, PAGE_SIZE, "0x%x\n", nonidx_data);
1016}
1017
1018static ssize_t nes_store_nonidx_data(struct device_driver *ddp,
1019 const char *buf, size_t count)
1020{
1021 char *p = (char *)buf;
1022 u32 val;
1023 u32 i = 0;
1024 struct nes_device *nesdev;
1025
1026 if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
1027 val = simple_strtoul(p, &p, 16);
1028 list_for_each_entry(nesdev, &nes_dev_list, list) {
1029 if (i == ee_flsh_adapter) {
1030 nes_write32(nesdev->regs + sysfs_nonidx_addr, val);
1031 break;
1032 }
1033 i++;
1034 }
1035 }
1036 return strnlen(buf, count);
1037}
1038
1039static ssize_t nes_show_idx_addr(struct device_driver *ddp, char *buf)
1040{
1041 return snprintf(buf, PAGE_SIZE, "0x%x\n", sysfs_idx_addr);
1042}
1043
1044static ssize_t nes_store_idx_addr(struct device_driver *ddp,
1045 const char *buf, size_t count)
1046{
1047 char *p = (char *)buf;
1048
1049 if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X')
1050 sysfs_idx_addr = simple_strtoul(p, &p, 16);
1051
1052 return strnlen(buf, count);
1053}
1054
1055static ssize_t nes_show_idx_data(struct device_driver *ddp, char *buf)
1056{
1057 u32 idx_data = 0xdead;
1058 u32 i = 0;
1059 struct nes_device *nesdev;
1060
1061 list_for_each_entry(nesdev, &nes_dev_list, list) {
1062 if (i == ee_flsh_adapter) {
1063 idx_data = nes_read_indexed(nesdev, sysfs_idx_addr);
1064 break;
1065 }
1066 i++;
1067 }
1068
1069 return snprintf(buf, PAGE_SIZE, "0x%x\n", idx_data);
1070}
1071
1072static ssize_t nes_store_idx_data(struct device_driver *ddp,
1073 const char *buf, size_t count)
1074{
1075 char *p = (char *)buf;
1076 u32 val;
1077 u32 i = 0;
1078 struct nes_device *nesdev;
1079
1080 if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
1081 val = simple_strtoul(p, &p, 16);
1082 list_for_each_entry(nesdev, &nes_dev_list, list) {
1083 if (i == ee_flsh_adapter) {
1084 nes_write_indexed(nesdev, sysfs_idx_addr, val);
1085 break;
1086 }
1087 i++;
1088 }
1089 }
1090 return strnlen(buf, count);
1091}
1092
2b537c28
CT		 1093
1094/**
1095 * nes_show_wqm_quanta
1096 */
1097static ssize_t nes_show_wqm_quanta(struct device_driver *ddp, char *buf)
1098{
1099 u32 wqm_quanta_value = 0xdead;
1100 u32 i = 0;
1101 struct nes_device *nesdev;
1102
1103 list_for_each_entry(nesdev, &nes_dev_list, list) {
1104 if (i == ee_flsh_adapter) {
1105 wqm_quanta_value = nesdev->nesadapter->wqm_quanta;
1106 break;
1107 }
1108 i++;
1109 }
1110
1111 return snprintf(buf, PAGE_SIZE, "0x%X\n", wqm_quanta);
1112}
1113
1114
1115/**
1116 * nes_store_wqm_quanta
1117 */
1118static ssize_t nes_store_wqm_quanta(struct device_driver *ddp,
1119 const char *buf, size_t count)
1120{
1121 unsigned long wqm_quanta_value;
1122 u32 wqm_config1;
1123 u32 i = 0;
1124 struct nes_device *nesdev;
1125
1126 strict_strtoul(buf, 0, &wqm_quanta_value);
1127 list_for_each_entry(nesdev, &nes_dev_list, list) {
1128 if (i == ee_flsh_adapter) {
1129 nesdev->nesadapter->wqm_quanta = wqm_quanta_value;
1130 wqm_config1 = nes_read_indexed(nesdev,
1131 NES_IDX_WQM_CONFIG1);
1132 nes_write_indexed(nesdev, NES_IDX_WQM_CONFIG1,
1133 ((wqm_quanta_value << 1) |
1134 (wqm_config1 & 0x00000001)));
1135 break;
1136 }
1137 i++;
1138 }
1139 return strnlen(buf, count);
1140}
1141
3c2d774c
GS		 1142static DRIVER_ATTR(adapter, S_IRUSR | S_IWUSR,
1143 nes_show_adapter, nes_store_adapter);
1144static DRIVER_ATTR(eeprom_cmd, S_IRUSR | S_IWUSR,
1145 nes_show_ee_cmd, nes_store_ee_cmd);
1146static DRIVER_ATTR(eeprom_data, S_IRUSR | S_IWUSR,
1147 nes_show_ee_data, nes_store_ee_data);
1148static DRIVER_ATTR(flash_cmd, S_IRUSR | S_IWUSR,
1149 nes_show_flash_cmd, nes_store_flash_cmd);
1150static DRIVER_ATTR(flash_data, S_IRUSR | S_IWUSR,
1151 nes_show_flash_data, nes_store_flash_data);
1152static DRIVER_ATTR(nonidx_addr, S_IRUSR | S_IWUSR,
1153 nes_show_nonidx_addr, nes_store_nonidx_addr);
1154static DRIVER_ATTR(nonidx_data, S_IRUSR | S_IWUSR,
1155 nes_show_nonidx_data, nes_store_nonidx_data);
1156static DRIVER_ATTR(idx_addr, S_IRUSR | S_IWUSR,
1157 nes_show_idx_addr, nes_store_idx_addr);
1158static DRIVER_ATTR(idx_data, S_IRUSR | S_IWUSR,
1159 nes_show_idx_data, nes_store_idx_data);
2b537c28
CT		 1160static DRIVER_ATTR(wqm_quanta, S_IRUSR | S_IWUSR,
1161 nes_show_wqm_quanta, nes_store_wqm_quanta);
3c2d774c
GS		 1162
1163static int nes_create_driver_sysfs(struct pci_driver *drv)
1164{
1165 int error;
1166 error = driver_create_file(&drv->driver, &driver_attr_adapter);
1167 error |= driver_create_file(&drv->driver, &driver_attr_eeprom_cmd);
1168 error |= driver_create_file(&drv->driver, &driver_attr_eeprom_data);
1169 error |= driver_create_file(&drv->driver, &driver_attr_flash_cmd);
1170 error |= driver_create_file(&drv->driver, &driver_attr_flash_data);
1171 error |= driver_create_file(&drv->driver, &driver_attr_nonidx_addr);
1172 error |= driver_create_file(&drv->driver, &driver_attr_nonidx_data);
1173 error |= driver_create_file(&drv->driver, &driver_attr_idx_addr);
1174 error |= driver_create_file(&drv->driver, &driver_attr_idx_data);
2b537c28 1175 error |= driver_create_file(&drv->driver, &driver_attr_wqm_quanta);
3c2d774c
GS		 1176 return error;
1177}
1178
1179static void nes_remove_driver_sysfs(struct pci_driver *drv)
1180{
1181 driver_remove_file(&drv->driver, &driver_attr_adapter);
1182 driver_remove_file(&drv->driver, &driver_attr_eeprom_cmd);
1183 driver_remove_file(&drv->driver, &driver_attr_eeprom_data);
1184 driver_remove_file(&drv->driver, &driver_attr_flash_cmd);
1185 driver_remove_file(&drv->driver, &driver_attr_flash_data);
1186 driver_remove_file(&drv->driver, &driver_attr_nonidx_addr);
1187 driver_remove_file(&drv->driver, &driver_attr_nonidx_data);
1188 driver_remove_file(&drv->driver, &driver_attr_idx_addr);
1189 driver_remove_file(&drv->driver, &driver_attr_idx_data);
2b537c28 1190 driver_remove_file(&drv->driver, &driver_attr_wqm_quanta);
3c2d774c
GS		 1191}
1192
1193/**
1194 * nes_init_module - module initialization entry point
1195 */
1196static int __init nes_init_module(void)
1197{
1198 int retval;
1199 int retval1;
1200
1201 retval = nes_cm_start();
1202 if (retval) {
1203 printk(KERN_ERR PFX "Unable to start NetEffect iWARP CM.\n");
1204 return retval;
1205 }
1206 retval = pci_register_driver(&nes_pci_driver);
1207 if (retval >= 0) {
1208 retval1 = nes_create_driver_sysfs(&nes_pci_driver);
1209 if (retval1 < 0)
1210 printk(KERN_ERR PFX "Unable to create NetEffect sys files.\n");
1211 }
1212 return retval;
1213}
1214
1215
1216/**
1217 * nes_exit_module - module unload entry point
1218 */
1219static void __exit nes_exit_module(void)
1220{
1221 nes_cm_stop();
1222 nes_remove_driver_sysfs(&nes_pci_driver);
1223
1224 pci_unregister_driver(&nes_pci_driver);
1225}
1226
1227
1228module_init(nes_init_module);
1229module_exit(nes_exit_module);
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