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net: convert print_mac to %pM
[deliverable/linux.git] / drivers / infiniband / hw / nes / nes.c
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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
3c2d774c 98LIST_HEAD(nes_adapter_list);
1a855fbf 99static LIST_HEAD(nes_dev_list);
3c2d774c
GS		 100
101atomic_t qps_destroyed;
3c2d774c 102
3c2d774c
GS		 103static unsigned int ee_flsh_adapter;
104static unsigned int sysfs_nonidx_addr;
105static unsigned int sysfs_idx_addr;
106
107static struct pci_device_id nes_pci_table[] = {
108 {PCI_VENDOR_ID_NETEFFECT, PCI_DEVICE_ID_NETEFFECT_NE020, PCI_ANY_ID, PCI_ANY_ID},
109 {0}
110};
111
112MODULE_DEVICE_TABLE(pci, nes_pci_table);
113
114static int nes_inetaddr_event(struct notifier_block *, unsigned long, void *);
115static int nes_net_event(struct notifier_block *, unsigned long, void *);
116static int nes_notifiers_registered;
117
118
119static struct notifier_block nes_inetaddr_notifier = {
120 .notifier_call = nes_inetaddr_event
121};
122
123static struct notifier_block nes_net_notifier = {
124 .notifier_call = nes_net_event
125};
126
127
128
129
130/**
131 * nes_inetaddr_event
132 */
133static int nes_inetaddr_event(struct notifier_block *notifier,
134 unsigned long event, void *ptr)
135{
136 struct in_ifaddr *ifa = ptr;
137 struct net_device *event_netdev = ifa->ifa_dev->dev;
138 struct nes_device *nesdev;
139 struct net_device *netdev;
140 struct nes_vnic *nesvnic;
141 unsigned int addr;
142 unsigned int mask;
143
144 addr = ntohl(ifa->ifa_address);
145 mask = ntohl(ifa->ifa_mask);
e4477031
RD		 146 nes_debug(NES_DBG_NETDEV, "nes_inetaddr_event: ip address " NIPQUAD_FMT
147 ", netmask " NIPQUAD_FMT ".\n",
148 HIPQUAD(addr), HIPQUAD(mask));
3c2d774c
GS		 149 list_for_each_entry(nesdev, &nes_dev_list, list) {
150 nes_debug(NES_DBG_NETDEV, "Nesdev list entry = 0x%p. (%s)\n",
151 nesdev, nesdev->netdev[0]->name);
152 netdev = nesdev->netdev[0];
153 nesvnic = netdev_priv(netdev);
154 if (netdev == event_netdev) {
155 if (nesvnic->rdma_enabled == 0) {
156 nes_debug(NES_DBG_NETDEV, "Returning without processing event for %s since"
157 " RDMA is not enabled.\n",
158 netdev->name);
159 return NOTIFY_OK;
160 }
161 /* we have ifa->ifa_address/mask here if we need it */
162 switch (event) {
163 case NETDEV_DOWN:
164 nes_debug(NES_DBG_NETDEV, "event:DOWN\n");
165 nes_write_indexed(nesdev,
166 NES_IDX_DST_IP_ADDR+(0x10*PCI_FUNC(nesdev->pcidev->devfn)), 0);
167
168 nes_manage_arp_cache(netdev, netdev->dev_addr,
169 ntohl(nesvnic->local_ipaddr), NES_ARP_DELETE);
170 nesvnic->local_ipaddr = 0;
171 return NOTIFY_OK;
172 break;
173 case NETDEV_UP:
174 nes_debug(NES_DBG_NETDEV, "event:UP\n");
175
176 if (nesvnic->local_ipaddr != 0) {
177 nes_debug(NES_DBG_NETDEV, "Interface already has local_ipaddr\n");
178 return NOTIFY_OK;
179 }
180 /* Add the address to the IP table */
181 nesvnic->local_ipaddr = ifa->ifa_address;
182
183 nes_write_indexed(nesdev,
184 NES_IDX_DST_IP_ADDR+(0x10*PCI_FUNC(nesdev->pcidev->devfn)),
185 ntohl(ifa->ifa_address));
186 nes_manage_arp_cache(netdev, netdev->dev_addr,
187 ntohl(nesvnic->local_ipaddr), NES_ARP_ADD);
188 return NOTIFY_OK;
189 break;
190 default:
191 break;
192 }
193 }
194 }
195
196 return NOTIFY_DONE;
197}
198
199
200/**
201 * nes_net_event
202 */
203static int nes_net_event(struct notifier_block *notifier,
204 unsigned long event, void *ptr)
205{
206 struct neighbour *neigh = ptr;
207 struct nes_device *nesdev;
208 struct net_device *netdev;
209 struct nes_vnic *nesvnic;
210
211 switch (event) {
212 case NETEVENT_NEIGH_UPDATE:
213 list_for_each_entry(nesdev, &nes_dev_list, list) {
214 /* nes_debug(NES_DBG_NETDEV, "Nesdev list entry = 0x%p.\n", nesdev); */
215 netdev = nesdev->netdev[0];
216 nesvnic = netdev_priv(netdev);
217 if (netdev == neigh->dev) {
218 if (nesvnic->rdma_enabled == 0) {
219 nes_debug(NES_DBG_NETDEV, "Skipping device %s since no RDMA\n",
220 netdev->name);
221 } else {
222 if (neigh->nud_state & NUD_VALID) {
223 nes_manage_arp_cache(neigh->dev, neigh->ha,
224 ntohl(*(__be32 *)neigh->primary_key), NES_ARP_ADD);
225 } else {
226 nes_manage_arp_cache(neigh->dev, neigh->ha,
227 ntohl(*(__be32 *)neigh->primary_key), NES_ARP_DELETE);
228 }
229 }
230 return NOTIFY_OK;
231 }
232 }
233 break;
234 default:
235 nes_debug(NES_DBG_NETDEV, "NETEVENT_ %lu undefined\n", event);
236 break;
237 }
238
239 return NOTIFY_DONE;
240}
241
242
243/**
244 * nes_add_ref
245 */
246void nes_add_ref(struct ib_qp *ibqp)
247{
248 struct nes_qp *nesqp;
249
250 nesqp = to_nesqp(ibqp);
251 nes_debug(NES_DBG_QP, "Bumping refcount for QP%u. Pre-inc value = %u\n",
252 ibqp->qp_num, atomic_read(&nesqp->refcount));
253 atomic_inc(&nesqp->refcount);
254}
255
256static void nes_cqp_rem_ref_callback(struct nes_device *nesdev, struct nes_cqp_request *cqp_request)
257{
258 unsigned long flags;
259 struct nes_qp *nesqp = cqp_request->cqp_callback_pointer;
260 struct nes_adapter *nesadapter = nesdev->nesadapter;
261 u32 qp_id;
262
263 atomic_inc(&qps_destroyed);
264
265 /* Free the control structures */
266
267 qp_id = nesqp->hwqp.qp_id;
268 if (nesqp->pbl_vbase) {
269 pci_free_consistent(nesdev->pcidev, nesqp->qp_mem_size,
270 nesqp->hwqp.q2_vbase, nesqp->hwqp.q2_pbase);
271 spin_lock_irqsave(&nesadapter->pbl_lock, flags);
272 nesadapter->free_256pbl++;
273 spin_unlock_irqrestore(&nesadapter->pbl_lock, flags);
274 pci_free_consistent(nesdev->pcidev, 256, nesqp->pbl_vbase, nesqp->pbl_pbase);
275 nesqp->pbl_vbase = NULL;
276
277 } else {
278 pci_free_consistent(nesdev->pcidev, nesqp->qp_mem_size,
279 nesqp->hwqp.sq_vbase, nesqp->hwqp.sq_pbase);
280 }
281 nes_free_resource(nesadapter, nesadapter->allocated_qps, nesqp->hwqp.qp_id);
282
6492cdf3 283 nesadapter->qp_table[nesqp->hwqp.qp_id-NES_FIRST_QPN] = NULL;
3c2d774c
GS		 284 kfree(nesqp->allocated_buffer);
285
286}
287
288/**
289 * nes_rem_ref
290 */
291void nes_rem_ref(struct ib_qp *ibqp)
292{
293 u64 u64temp;
294 struct nes_qp *nesqp;
295 struct nes_vnic *nesvnic = to_nesvnic(ibqp->device);
296 struct nes_device *nesdev = nesvnic->nesdev;
3c2d774c
GS		 297 struct nes_hw_cqp_wqe *cqp_wqe;
298 struct nes_cqp_request *cqp_request;
299 u32 opcode;
300
301 nesqp = to_nesqp(ibqp);
302
303 if (atomic_read(&nesqp->refcount) == 0) {
304 printk(KERN_INFO PFX "%s: Reference count already 0 for QP%d, last aeq = 0x%04X.\n",
33718363 305 __func__, ibqp->qp_num, nesqp->last_aeq);
3c2d774c
GS		 306 BUG();
307 }
308
309 if (atomic_dec_and_test(&nesqp->refcount)) {
3c2d774c
GS		 310 /* Destroy the QP */
311 cqp_request = nes_get_cqp_request(nesdev);
312 if (cqp_request == NULL) {
313 nes_debug(NES_DBG_QP, "Failed to get a cqp_request.\n");
314 return;
315 }
316 cqp_request->waiting = 0;
317 cqp_request->callback = 1;
318 cqp_request->cqp_callback = nes_cqp_rem_ref_callback;
319 cqp_request->cqp_callback_pointer = nesqp;
320 cqp_wqe = &cqp_request->cqp_wqe;
321
322 nes_fill_init_cqp_wqe(cqp_wqe, nesdev);
323 opcode = NES_CQP_DESTROY_QP | NES_CQP_QP_TYPE_IWARP;
324
325 if (nesqp->hte_added) {
326 opcode |= NES_CQP_QP_DEL_HTE;
327 nesqp->hte_added = 0;
328 }
329 set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_OPCODE_IDX, opcode);
330 set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_ID_IDX, nesqp->hwqp.qp_id);
331 u64temp = (u64)nesqp->nesqp_context_pbase;
332 set_wqe_64bit_value(cqp_wqe->wqe_words, NES_CQP_QP_WQE_CONTEXT_LOW_IDX, u64temp);
8294f297 333 nes_post_cqp_request(nesdev, cqp_request);
3c2d774c
GS		 334 }
335}
336
337
338/**
339 * nes_get_qp
340 */
341struct ib_qp *nes_get_qp(struct ib_device *device, int qpn)
342{
343 struct nes_vnic *nesvnic = to_nesvnic(device);
344 struct nes_device *nesdev = nesvnic->nesdev;
345 struct nes_adapter *nesadapter = nesdev->nesadapter;
346
347 if ((qpn < NES_FIRST_QPN) || (qpn >= (NES_FIRST_QPN + nesadapter->max_qp)))
348 return NULL;
349
350 return &nesadapter->qp_table[qpn - NES_FIRST_QPN]->ibqp;
351}
352
353
354/**
355 * nes_print_macaddr
356 */
357static void nes_print_macaddr(struct net_device *netdev)
358{
e174961c
JB		 359 nes_debug(NES_DBG_INIT, "%s: %pM, IRQ %u\n",
360 netdev->name, netdev->dev_addr, netdev->irq);
2bd01c5d 361}
3c2d774c
GS		 362
363/**
364 * nes_interrupt - handle interrupts
365 */
366static irqreturn_t nes_interrupt(int irq, void *dev_id)
367{
368 struct nes_device *nesdev = (struct nes_device *)dev_id;
369 int handled = 0;
370 u32 int_mask;
371 u32 int_req;
372 u32 int_stat;
373 u32 intf_int_stat;
374 u32 timer_stat;
375
376 if (nesdev->msi_enabled) {
377 /* No need to read the interrupt pending register if msi is enabled */
378 handled = 1;
379 } else {
380 if (unlikely(nesdev->nesadapter->hw_rev == NE020_REV)) {
381 /* Master interrupt enable provides synchronization for kicking off bottom half
382 when interrupt sharing is going on */
383 int_mask = nes_read32(nesdev->regs + NES_INT_MASK);
384 if (int_mask & 0x80000000) {
385 /* Check interrupt status to see if this might be ours */
386 int_stat = nes_read32(nesdev->regs + NES_INT_STAT);
387 int_req = nesdev->int_req;
388 if (int_stat&int_req) {
389 /* if interesting CEQ or AEQ is pending, claim the interrupt */
390 if ((int_stat&int_req) & (~(NES_INT_TIMER|NES_INT_INTF))) {
391 handled = 1;
392 } else {
393 if (((int_stat & int_req) & NES_INT_TIMER) == NES_INT_TIMER) {
394 /* Timer might be running but might be for another function */
395 timer_stat = nes_read32(nesdev->regs + NES_TIMER_STAT);
396 if ((timer_stat & nesdev->timer_int_req) != 0) {
397 handled = 1;
398 }
399 }
400 if ((((int_stat & int_req) & NES_INT_INTF) == NES_INT_INTF) &&
401 (handled == 0)) {
402 intf_int_stat = nes_read32(nesdev->regs+NES_INTF_INT_STAT);
403 if ((intf_int_stat & nesdev->intf_int_req) != 0) {
404 handled = 1;
405 }
406 }
407 }
408 if (handled) {
409 nes_write32(nesdev->regs+NES_INT_MASK, int_mask & (~0x80000000));
410 int_mask = nes_read32(nesdev->regs+NES_INT_MASK);
411 /* Save off the status to save an additional read */
412 nesdev->int_stat = int_stat;
413 nesdev->napi_isr_ran = 1;
414 }
415 }
416 }
417 } else {
418 handled = nes_read32(nesdev->regs+NES_INT_PENDING);
419 }
420 }
421
422 if (handled) {
423
424 if (nes_napi_isr(nesdev) == 0) {
425 tasklet_schedule(&nesdev->dpc_tasklet);
426
427 }
428 return IRQ_HANDLED;
429 } else {
430 return IRQ_NONE;
431 }
432}
433
434
435/**
436 * nes_probe - Device initialization
437 */
438static int __devinit nes_probe(struct pci_dev *pcidev, const struct pci_device_id *ent)
439{
440 struct net_device *netdev = NULL;
441 struct nes_device *nesdev = NULL;
442 int ret = 0;
443 struct nes_vnic *nesvnic = NULL;
444 void __iomem *mmio_regs = NULL;
445 u8 hw_rev;
446
447 assert(pcidev != NULL);
448 assert(ent != NULL);
449
450 printk(KERN_INFO PFX "NetEffect RNIC driver v%s loading. (%s)\n",
451 DRV_VERSION, pci_name(pcidev));
452
453 ret = pci_enable_device(pcidev);
454 if (ret) {
455 printk(KERN_ERR PFX "Unable to enable PCI device. (%s)\n", pci_name(pcidev));
456 goto bail0;
457 }
458
459 nes_debug(NES_DBG_INIT, "BAR0 (@0x%08lX) size = 0x%lX bytes\n",
460 (long unsigned int)pci_resource_start(pcidev, BAR_0),
461 (long unsigned int)pci_resource_len(pcidev, BAR_0));
462 nes_debug(NES_DBG_INIT, "BAR1 (@0x%08lX) size = 0x%lX bytes\n",
463 (long unsigned int)pci_resource_start(pcidev, BAR_1),
464 (long unsigned int)pci_resource_len(pcidev, BAR_1));
465
466 /* Make sure PCI base addr are MMIO */
467 if (!(pci_resource_flags(pcidev, BAR_0) & IORESOURCE_MEM) ||
468 !(pci_resource_flags(pcidev, BAR_1) & IORESOURCE_MEM)) {
469 printk(KERN_ERR PFX "PCI regions not an MMIO resource\n");
470 ret = -ENODEV;
471 goto bail1;
472 }
473
474 /* Reserve PCI I/O and memory resources */
475 ret = pci_request_regions(pcidev, DRV_NAME);
476 if (ret) {
477 printk(KERN_ERR PFX "Unable to request regions. (%s)\n", pci_name(pcidev));
478 goto bail1;
479 }
480
481 if ((sizeof(dma_addr_t) > 4)) {
482 ret = pci_set_dma_mask(pcidev, DMA_64BIT_MASK);
483 if (ret < 0) {
484 printk(KERN_ERR PFX "64b DMA mask configuration failed\n");
485 goto bail2;
486 }
487 ret = pci_set_consistent_dma_mask(pcidev, DMA_64BIT_MASK);
488 if (ret) {
489 printk(KERN_ERR PFX "64b DMA consistent mask configuration failed\n");
490 goto bail2;
491 }
492 } else {
493 ret = pci_set_dma_mask(pcidev, DMA_32BIT_MASK);
494 if (ret < 0) {
495 printk(KERN_ERR PFX "32b DMA mask configuration failed\n");
496 goto bail2;
497 }
498 ret = pci_set_consistent_dma_mask(pcidev, DMA_32BIT_MASK);
499 if (ret) {
500 printk(KERN_ERR PFX "32b DMA consistent mask configuration failed\n");
501 goto bail2;
502 }
503 }
504
505 pci_set_master(pcidev);
506
507 /* Allocate hardware structure */
508 nesdev = kzalloc(sizeof(struct nes_device), GFP_KERNEL);
509 if (!nesdev) {
510 printk(KERN_ERR PFX "%s: Unable to alloc hardware struct\n", pci_name(pcidev));
511 ret = -ENOMEM;
512 goto bail2;
513 }
514
515 nes_debug(NES_DBG_INIT, "Allocated nes device at %p\n", nesdev);
516 nesdev->pcidev = pcidev;
517 pci_set_drvdata(pcidev, nesdev);
518
519 pci_read_config_byte(pcidev, 0x0008, &hw_rev);
520 nes_debug(NES_DBG_INIT, "hw_rev=%u\n", hw_rev);
521
522 spin_lock_init(&nesdev->indexed_regs_lock);
523
524 /* Remap the PCI registers in adapter BAR0 to kernel VA space */
525 mmio_regs = ioremap_nocache(pci_resource_start(pcidev, BAR_0), sizeof(mmio_regs));
526 if (mmio_regs == NULL) {
527 printk(KERN_ERR PFX "Unable to remap BAR0\n");
528 ret = -EIO;
529 goto bail3;
530 }
531 nesdev->regs = mmio_regs;
532 nesdev->index_reg = 0x50 + (PCI_FUNC(pcidev->devfn)*8) + mmio_regs;
533
534 /* Ensure interrupts are disabled */
535 nes_write32(nesdev->regs+NES_INT_MASK, 0x7fffffff);
536
537 if (nes_drv_opt & NES_DRV_OPT_ENABLE_MSI) {
538 if (!pci_enable_msi(nesdev->pcidev)) {
539 nesdev->msi_enabled = 1;
540 nes_debug(NES_DBG_INIT, "MSI is enabled for device %s\n",
541 pci_name(pcidev));
542 } else {
543 nes_debug(NES_DBG_INIT, "MSI is disabled by linux for device %s\n",
544 pci_name(pcidev));
545 }
546 } else {
547 nes_debug(NES_DBG_INIT, "MSI not requested due to driver options for device %s\n",
548 pci_name(pcidev));
549 }
550
551 nesdev->csr_start = pci_resource_start(nesdev->pcidev, BAR_0);
552 nesdev->doorbell_region = pci_resource_start(nesdev->pcidev, BAR_1);
553
554 /* Init the adapter */
555 nesdev->nesadapter = nes_init_adapter(nesdev, hw_rev);
3c2d774c
GS		 556 if (!nesdev->nesadapter) {
557 printk(KERN_ERR PFX "Unable to initialize adapter.\n");
558 ret = -ENOMEM;
559 goto bail5;
560 }
a4435feb 561 nesdev->nesadapter->et_rx_coalesce_usecs_irq = interrupt_mod_interval;
2b537c28 562 nesdev->nesadapter->wqm_quanta = wqm_quanta;
3c2d774c
GS		 563
564 /* nesdev->base_doorbell_index =
565 nesdev->nesadapter->pd_config_base[PCI_FUNC(nesdev->pcidev->devfn)]; */
566 nesdev->base_doorbell_index = 1;
567 nesdev->doorbell_start = nesdev->nesadapter->doorbell_start;
fcb7ad31
CT		 568 if (nesdev->nesadapter->phy_type[0] == NES_PHY_TYPE_PUMA_1G) {
569 switch (PCI_FUNC(nesdev->pcidev->devfn) %
570 nesdev->nesadapter->port_count) {
571 case 1:
572 nesdev->mac_index = 2;
573 break;
574 case 2:
575 nesdev->mac_index = 1;
576 break;
577 case 3:
578 nesdev->mac_index = 3;
579 break;
580 case 0:
581 default:
582 nesdev->mac_index = 0;
583 }
584 } else {
585 nesdev->mac_index = PCI_FUNC(nesdev->pcidev->devfn) %
586 nesdev->nesadapter->port_count;
587 }
3c2d774c
GS		 588
589 tasklet_init(&nesdev->dpc_tasklet, nes_dpc, (unsigned long)nesdev);
590
591 /* bring up the Control QP */
592 if (nes_init_cqp(nesdev)) {
593 ret = -ENODEV;
594 goto bail6;
595 }
596
597 /* Arm the CCQ */
598 nes_write32(nesdev->regs+NES_CQE_ALLOC, NES_CQE_ALLOC_NOTIFY_NEXT |
599 PCI_FUNC(nesdev->pcidev->devfn));
600 nes_read32(nesdev->regs+NES_CQE_ALLOC);
601
602 /* Enable the interrupts */
603 nesdev->int_req = (0x101 << PCI_FUNC(nesdev->pcidev->devfn)) |
604 (1 << (PCI_FUNC(nesdev->pcidev->devfn)+16));
605 if (PCI_FUNC(nesdev->pcidev->devfn) < 4) {
fcb7ad31 606 nesdev->int_req |= (1 << (PCI_FUNC(nesdev->mac_index)+24));
3c2d774c
GS		 607 }
608
609 /* TODO: This really should be the first driver to load, not function 0 */
610 if (PCI_FUNC(nesdev->pcidev->devfn) == 0) {
611 /* pick up PCI and critical errors if the first driver to load */
612 nesdev->intf_int_req = NES_INTF_INT_PCIERR | NES_INTF_INT_CRITERR;
613 nesdev->int_req |= NES_INT_INTF;
614 } else {
615 nesdev->intf_int_req = 0;
616 }
617 nesdev->intf_int_req |= (1 << (PCI_FUNC(nesdev->pcidev->devfn)+16));
618 nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS0, 0);
619 nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS1, 0);
620 nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS2, 0x00001265);
621 nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS4, 0x18021804);
622
623 nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS3, 0x17801790);
624
625 /* deal with both periodic and one_shot */
626 nesdev->timer_int_req = 0x101 << PCI_FUNC(nesdev->pcidev->devfn);
627 nesdev->nesadapter->timer_int_req |= nesdev->timer_int_req;
628 nes_debug(NES_DBG_INIT, "setting int_req for function %u, nesdev = 0x%04X, adapter = 0x%04X\n",
629 PCI_FUNC(nesdev->pcidev->devfn),
630 nesdev->timer_int_req, nesdev->nesadapter->timer_int_req);
631
632 nes_write32(nesdev->regs+NES_INTF_INT_MASK, ~(nesdev->intf_int_req));
633
634 list_add_tail(&nesdev->list, &nes_dev_list);
635
636 /* Request an interrupt line for the driver */
637 ret = request_irq(pcidev->irq, nes_interrupt, IRQF_SHARED, DRV_NAME, nesdev);
638 if (ret) {
639 printk(KERN_ERR PFX "%s: requested IRQ %u is busy\n",
640 pci_name(pcidev), pcidev->irq);
641 goto bail65;
642 }
643
644 nes_write32(nesdev->regs+NES_INT_MASK, ~nesdev->int_req);
645
646 if (nes_notifiers_registered == 0) {
647 register_inetaddr_notifier(&nes_inetaddr_notifier);
648 register_netevent_notifier(&nes_net_notifier);
649 }
650 nes_notifiers_registered++;
651
652 /* Initialize network devices */
653 if ((netdev = nes_netdev_init(nesdev, mmio_regs)) == NULL) {
654 goto bail7;
655 }
656
657 /* Register network device */
658 ret = register_netdev(netdev);
659 if (ret) {
660 printk(KERN_ERR PFX "Unable to register netdev, ret = %d\n", ret);
661 nes_netdev_destroy(netdev);
662 goto bail7;
663 }
664
665 nes_print_macaddr(netdev);
666 /* create a CM core for this netdev */
667 nesvnic = netdev_priv(netdev);
668
669 nesdev->netdev_count++;
670 nesdev->nesadapter->netdev_count++;
671
672
673 printk(KERN_ERR PFX "%s: NetEffect RNIC driver successfully loaded.\n",
674 pci_name(pcidev));
675 return 0;
676
677 bail7:
678 printk(KERN_ERR PFX "bail7\n");
679 while (nesdev->netdev_count > 0) {
680 nesdev->netdev_count--;
681 nesdev->nesadapter->netdev_count--;
682
683 unregister_netdev(nesdev->netdev[nesdev->netdev_count]);
684 nes_netdev_destroy(nesdev->netdev[nesdev->netdev_count]);
685 }
686
687 nes_debug(NES_DBG_INIT, "netdev_count=%d, nesadapter->netdev_count=%d\n",
688 nesdev->netdev_count, nesdev->nesadapter->netdev_count);
689
690 nes_notifiers_registered--;
691 if (nes_notifiers_registered == 0) {
692 unregister_netevent_notifier(&nes_net_notifier);
693 unregister_inetaddr_notifier(&nes_inetaddr_notifier);
694 }
695
696 list_del(&nesdev->list);
697 nes_destroy_cqp(nesdev);
698
699 bail65:
700 printk(KERN_ERR PFX "bail65\n");
701 free_irq(pcidev->irq, nesdev);
702 if (nesdev->msi_enabled) {
703 pci_disable_msi(pcidev);
704 }
705 bail6:
706 printk(KERN_ERR PFX "bail6\n");
707 tasklet_kill(&nesdev->dpc_tasklet);
708 /* Deallocate the Adapter Structure */
709 nes_destroy_adapter(nesdev->nesadapter);
710
711 bail5:
712 printk(KERN_ERR PFX "bail5\n");
713 iounmap(nesdev->regs);
714
715 bail3:
716 printk(KERN_ERR PFX "bail3\n");
717 kfree(nesdev);
718
719 bail2:
720 pci_release_regions(pcidev);
721
722 bail1:
723 pci_disable_device(pcidev);
724
725 bail0:
726 return ret;
727}
728
729
730/**
731 * nes_remove - unload from kernel
732 */
733static void __devexit nes_remove(struct pci_dev *pcidev)
734{
735 struct nes_device *nesdev = pci_get_drvdata(pcidev);
736 struct net_device *netdev;
737 int netdev_index = 0;
738
739 if (nesdev->netdev_count) {
740 netdev = nesdev->netdev[netdev_index];
741 if (netdev) {
742 netif_stop_queue(netdev);
743 unregister_netdev(netdev);
744 nes_netdev_destroy(netdev);
745
746 nesdev->netdev[netdev_index] = NULL;
747 nesdev->netdev_count--;
748 nesdev->nesadapter->netdev_count--;
749 }
750 }
751
752 nes_notifiers_registered--;
753 if (nes_notifiers_registered == 0) {
754 unregister_netevent_notifier(&nes_net_notifier);
755 unregister_inetaddr_notifier(&nes_inetaddr_notifier);
756 }
757
758 list_del(&nesdev->list);
759 nes_destroy_cqp(nesdev);
4cd1e5eb
RD		 760
761 free_irq(pcidev->irq, nesdev);
3c2d774c
GS		 762 tasklet_kill(&nesdev->dpc_tasklet);
763
764 /* Deallocate the Adapter Structure */
765 nes_destroy_adapter(nesdev->nesadapter);
766
3c2d774c
GS		 767 if (nesdev->msi_enabled) {
768 pci_disable_msi(pcidev);
769 }
770
771 iounmap(nesdev->regs);
772 kfree(nesdev);
773
774 /* nes_debug(NES_DBG_SHUTDOWN, "calling pci_release_regions.\n"); */
775 pci_release_regions(pcidev);
776 pci_disable_device(pcidev);
777 pci_set_drvdata(pcidev, NULL);
778}
779
780
781static struct pci_driver nes_pci_driver = {
782 .name = DRV_NAME,
783 .id_table = nes_pci_table,
784 .probe = nes_probe,
785 .remove = __devexit_p(nes_remove),
786};
787
788static ssize_t nes_show_adapter(struct device_driver *ddp, char *buf)
789{
790 unsigned int devfn = 0xffffffff;
791 unsigned char bus_number = 0xff;
792 unsigned int i = 0;
793 struct nes_device *nesdev;
794
795 list_for_each_entry(nesdev, &nes_dev_list, list) {
796 if (i == ee_flsh_adapter) {
fcb7ad31
CT		 797 devfn = nesdev->pcidev->devfn;
798 bus_number = nesdev->pcidev->bus->number;
3c2d774c
GS		 799 break;
800 }
801 i++;
802 }
803
fcb7ad31 804 return snprintf(buf, PAGE_SIZE, "%x:%x\n", bus_number, devfn);
3c2d774c
GS		 805}
806
807static ssize_t nes_store_adapter(struct device_driver *ddp,
808 const char *buf, size_t count)
809{
810 char *p = (char *)buf;
811
812 ee_flsh_adapter = simple_strtoul(p, &p, 10);
813 return strnlen(buf, count);
814}
815
816static ssize_t nes_show_ee_cmd(struct device_driver *ddp, char *buf)
817{
818 u32 eeprom_cmd = 0xdead;
819 u32 i = 0;
820 struct nes_device *nesdev;
821
822 list_for_each_entry(nesdev, &nes_dev_list, list) {
823 if (i == ee_flsh_adapter) {
824 eeprom_cmd = nes_read32(nesdev->regs + NES_EEPROM_COMMAND);
825 break;
826 }
827 i++;
828 }
829 return snprintf(buf, PAGE_SIZE, "0x%x\n", eeprom_cmd);
830}
831
832static ssize_t nes_store_ee_cmd(struct device_driver *ddp,
833 const char *buf, size_t count)
834{
835 char *p = (char *)buf;
836 u32 val;
837 u32 i = 0;
838 struct nes_device *nesdev;
839
840 if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
841 val = simple_strtoul(p, &p, 16);
842 list_for_each_entry(nesdev, &nes_dev_list, list) {
843 if (i == ee_flsh_adapter) {
844 nes_write32(nesdev->regs + NES_EEPROM_COMMAND, val);
845 break;
846 }
847 i++;
848 }
849 }
850 return strnlen(buf, count);
851}
852
853static ssize_t nes_show_ee_data(struct device_driver *ddp, char *buf)
854{
855 u32 eeprom_data = 0xdead;
856 u32 i = 0;
857 struct nes_device *nesdev;
858
859 list_for_each_entry(nesdev, &nes_dev_list, list) {
860 if (i == ee_flsh_adapter) {
861 eeprom_data = nes_read32(nesdev->regs + NES_EEPROM_DATA);
862 break;
863 }
864 i++;
865 }
866
867 return snprintf(buf, PAGE_SIZE, "0x%x\n", eeprom_data);
868}
869
870static ssize_t nes_store_ee_data(struct device_driver *ddp,
871 const char *buf, size_t count)
872{
873 char *p = (char *)buf;
874 u32 val;
875 u32 i = 0;
876 struct nes_device *nesdev;
877
878 if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
879 val = simple_strtoul(p, &p, 16);
880 list_for_each_entry(nesdev, &nes_dev_list, list) {
881 if (i == ee_flsh_adapter) {
882 nes_write32(nesdev->regs + NES_EEPROM_DATA, val);
883 break;
884 }
885 i++;
886 }
887 }
888 return strnlen(buf, count);
889}
890
891static ssize_t nes_show_flash_cmd(struct device_driver *ddp, char *buf)
892{
893 u32 flash_cmd = 0xdead;
894 u32 i = 0;
895 struct nes_device *nesdev;
896
897 list_for_each_entry(nesdev, &nes_dev_list, list) {
898 if (i == ee_flsh_adapter) {
899 flash_cmd = nes_read32(nesdev->regs + NES_FLASH_COMMAND);
900 break;
901 }
902 i++;
903 }
904
905 return snprintf(buf, PAGE_SIZE, "0x%x\n", flash_cmd);
906}
907
908static ssize_t nes_store_flash_cmd(struct device_driver *ddp,
909 const char *buf, size_t count)
910{
911 char *p = (char *)buf;
912 u32 val;
913 u32 i = 0;
914 struct nes_device *nesdev;
915
916 if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
917 val = simple_strtoul(p, &p, 16);
918 list_for_each_entry(nesdev, &nes_dev_list, list) {
919 if (i == ee_flsh_adapter) {
920 nes_write32(nesdev->regs + NES_FLASH_COMMAND, val);
921 break;
922 }
923 i++;
924 }
925 }
926 return strnlen(buf, count);
927}
928
929static ssize_t nes_show_flash_data(struct device_driver *ddp, char *buf)
930{
931 u32 flash_data = 0xdead;
932 u32 i = 0;
933 struct nes_device *nesdev;
934
935 list_for_each_entry(nesdev, &nes_dev_list, list) {
936 if (i == ee_flsh_adapter) {
937 flash_data = nes_read32(nesdev->regs + NES_FLASH_DATA);
938 break;
939 }
940 i++;
941 }
942
943 return snprintf(buf, PAGE_SIZE, "0x%x\n", flash_data);
944}
945
946static ssize_t nes_store_flash_data(struct device_driver *ddp,
947 const char *buf, size_t count)
948{
949 char *p = (char *)buf;
950 u32 val;
951 u32 i = 0;
952 struct nes_device *nesdev;
953
954 if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
955 val = simple_strtoul(p, &p, 16);
956 list_for_each_entry(nesdev, &nes_dev_list, list) {
957 if (i == ee_flsh_adapter) {
958 nes_write32(nesdev->regs + NES_FLASH_DATA, val);
959 break;
960 }
961 i++;
962 }
963 }
964 return strnlen(buf, count);
965}
966
967static ssize_t nes_show_nonidx_addr(struct device_driver *ddp, char *buf)
968{
969 return snprintf(buf, PAGE_SIZE, "0x%x\n", sysfs_nonidx_addr);
970}
971
972static ssize_t nes_store_nonidx_addr(struct device_driver *ddp,
973 const char *buf, size_t count)
974{
975 char *p = (char *)buf;
976
977 if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X')
978 sysfs_nonidx_addr = simple_strtoul(p, &p, 16);
979
980 return strnlen(buf, count);
981}
982
983static ssize_t nes_show_nonidx_data(struct device_driver *ddp, char *buf)
984{
985 u32 nonidx_data = 0xdead;
986 u32 i = 0;
987 struct nes_device *nesdev;
988
989 list_for_each_entry(nesdev, &nes_dev_list, list) {
990 if (i == ee_flsh_adapter) {
991 nonidx_data = nes_read32(nesdev->regs + sysfs_nonidx_addr);
992 break;
993 }
994 i++;
995 }
996
997 return snprintf(buf, PAGE_SIZE, "0x%x\n", nonidx_data);
998}
999
1000static ssize_t nes_store_nonidx_data(struct device_driver *ddp,
1001 const char *buf, size_t count)
1002{
1003 char *p = (char *)buf;
1004 u32 val;
1005 u32 i = 0;
1006 struct nes_device *nesdev;
1007
1008 if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
1009 val = simple_strtoul(p, &p, 16);
1010 list_for_each_entry(nesdev, &nes_dev_list, list) {
1011 if (i == ee_flsh_adapter) {
1012 nes_write32(nesdev->regs + sysfs_nonidx_addr, val);
1013 break;
1014 }
1015 i++;
1016 }
1017 }
1018 return strnlen(buf, count);
1019}
1020
1021static ssize_t nes_show_idx_addr(struct device_driver *ddp, char *buf)
1022{
1023 return snprintf(buf, PAGE_SIZE, "0x%x\n", sysfs_idx_addr);
1024}
1025
1026static ssize_t nes_store_idx_addr(struct device_driver *ddp,
1027 const char *buf, size_t count)
1028{
1029 char *p = (char *)buf;
1030
1031 if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X')
1032 sysfs_idx_addr = simple_strtoul(p, &p, 16);
1033
1034 return strnlen(buf, count);
1035}
1036
1037static ssize_t nes_show_idx_data(struct device_driver *ddp, char *buf)
1038{
1039 u32 idx_data = 0xdead;
1040 u32 i = 0;
1041 struct nes_device *nesdev;
1042
1043 list_for_each_entry(nesdev, &nes_dev_list, list) {
1044 if (i == ee_flsh_adapter) {
1045 idx_data = nes_read_indexed(nesdev, sysfs_idx_addr);
1046 break;
1047 }
1048 i++;
1049 }
1050
1051 return snprintf(buf, PAGE_SIZE, "0x%x\n", idx_data);
1052}
1053
1054static ssize_t nes_store_idx_data(struct device_driver *ddp,
1055 const char *buf, size_t count)
1056{
1057 char *p = (char *)buf;
1058 u32 val;
1059 u32 i = 0;
1060 struct nes_device *nesdev;
1061
1062 if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
1063 val = simple_strtoul(p, &p, 16);
1064 list_for_each_entry(nesdev, &nes_dev_list, list) {
1065 if (i == ee_flsh_adapter) {
1066 nes_write_indexed(nesdev, sysfs_idx_addr, val);
1067 break;
1068 }
1069 i++;
1070 }
1071 }
1072 return strnlen(buf, count);
1073}
1074
2b537c28
CT		 1075
1076/**
1077 * nes_show_wqm_quanta
1078 */
1079static ssize_t nes_show_wqm_quanta(struct device_driver *ddp, char *buf)
1080{
1081 u32 wqm_quanta_value = 0xdead;
1082 u32 i = 0;
1083 struct nes_device *nesdev;
1084
1085 list_for_each_entry(nesdev, &nes_dev_list, list) {
1086 if (i == ee_flsh_adapter) {
1087 wqm_quanta_value = nesdev->nesadapter->wqm_quanta;
1088 break;
1089 }
1090 i++;
1091 }
1092
1093 return snprintf(buf, PAGE_SIZE, "0x%X\n", wqm_quanta);
1094}
1095
1096
1097/**
1098 * nes_store_wqm_quanta
1099 */
1100static ssize_t nes_store_wqm_quanta(struct device_driver *ddp,
1101 const char *buf, size_t count)
1102{
1103 unsigned long wqm_quanta_value;
1104 u32 wqm_config1;
1105 u32 i = 0;
1106 struct nes_device *nesdev;
1107
1108 strict_strtoul(buf, 0, &wqm_quanta_value);
1109 list_for_each_entry(nesdev, &nes_dev_list, list) {
1110 if (i == ee_flsh_adapter) {
1111 nesdev->nesadapter->wqm_quanta = wqm_quanta_value;
1112 wqm_config1 = nes_read_indexed(nesdev,
1113 NES_IDX_WQM_CONFIG1);
1114 nes_write_indexed(nesdev, NES_IDX_WQM_CONFIG1,
1115 ((wqm_quanta_value << 1) |
1116 (wqm_config1 & 0x00000001)));
1117 break;
1118 }
1119 i++;
1120 }
1121 return strnlen(buf, count);
1122}
1123
3c2d774c
GS		 1124static DRIVER_ATTR(adapter, S_IRUSR | S_IWUSR,
1125 nes_show_adapter, nes_store_adapter);
1126static DRIVER_ATTR(eeprom_cmd, S_IRUSR | S_IWUSR,
1127 nes_show_ee_cmd, nes_store_ee_cmd);
1128static DRIVER_ATTR(eeprom_data, S_IRUSR | S_IWUSR,
1129 nes_show_ee_data, nes_store_ee_data);
1130static DRIVER_ATTR(flash_cmd, S_IRUSR | S_IWUSR,
1131 nes_show_flash_cmd, nes_store_flash_cmd);
1132static DRIVER_ATTR(flash_data, S_IRUSR | S_IWUSR,
1133 nes_show_flash_data, nes_store_flash_data);
1134static DRIVER_ATTR(nonidx_addr, S_IRUSR | S_IWUSR,
1135 nes_show_nonidx_addr, nes_store_nonidx_addr);
1136static DRIVER_ATTR(nonidx_data, S_IRUSR | S_IWUSR,
1137 nes_show_nonidx_data, nes_store_nonidx_data);
1138static DRIVER_ATTR(idx_addr, S_IRUSR | S_IWUSR,
1139 nes_show_idx_addr, nes_store_idx_addr);
1140static DRIVER_ATTR(idx_data, S_IRUSR | S_IWUSR,
1141 nes_show_idx_data, nes_store_idx_data);
2b537c28
CT		 1142static DRIVER_ATTR(wqm_quanta, S_IRUSR | S_IWUSR,
1143 nes_show_wqm_quanta, nes_store_wqm_quanta);
3c2d774c
GS		 1144
1145static int nes_create_driver_sysfs(struct pci_driver *drv)
1146{
1147 int error;
1148 error = driver_create_file(&drv->driver, &driver_attr_adapter);
1149 error |= driver_create_file(&drv->driver, &driver_attr_eeprom_cmd);
1150 error |= driver_create_file(&drv->driver, &driver_attr_eeprom_data);
1151 error |= driver_create_file(&drv->driver, &driver_attr_flash_cmd);
1152 error |= driver_create_file(&drv->driver, &driver_attr_flash_data);
1153 error |= driver_create_file(&drv->driver, &driver_attr_nonidx_addr);
1154 error |= driver_create_file(&drv->driver, &driver_attr_nonidx_data);
1155 error |= driver_create_file(&drv->driver, &driver_attr_idx_addr);
1156 error |= driver_create_file(&drv->driver, &driver_attr_idx_data);
2b537c28 1157 error |= driver_create_file(&drv->driver, &driver_attr_wqm_quanta);
3c2d774c
GS		 1158 return error;
1159}
1160
1161static void nes_remove_driver_sysfs(struct pci_driver *drv)
1162{
1163 driver_remove_file(&drv->driver, &driver_attr_adapter);
1164 driver_remove_file(&drv->driver, &driver_attr_eeprom_cmd);
1165 driver_remove_file(&drv->driver, &driver_attr_eeprom_data);
1166 driver_remove_file(&drv->driver, &driver_attr_flash_cmd);
1167 driver_remove_file(&drv->driver, &driver_attr_flash_data);
1168 driver_remove_file(&drv->driver, &driver_attr_nonidx_addr);
1169 driver_remove_file(&drv->driver, &driver_attr_nonidx_data);
1170 driver_remove_file(&drv->driver, &driver_attr_idx_addr);
1171 driver_remove_file(&drv->driver, &driver_attr_idx_data);
2b537c28 1172 driver_remove_file(&drv->driver, &driver_attr_wqm_quanta);
3c2d774c
GS		 1173}
1174
1175/**
1176 * nes_init_module - module initialization entry point
1177 */
1178static int __init nes_init_module(void)
1179{
1180 int retval;
1181 int retval1;
1182
1183 retval = nes_cm_start();
1184 if (retval) {
1185 printk(KERN_ERR PFX "Unable to start NetEffect iWARP CM.\n");
1186 return retval;
1187 }
1188 retval = pci_register_driver(&nes_pci_driver);
1189 if (retval >= 0) {
1190 retval1 = nes_create_driver_sysfs(&nes_pci_driver);
1191 if (retval1 < 0)
1192 printk(KERN_ERR PFX "Unable to create NetEffect sys files.\n");
1193 }
1194 return retval;
1195}
1196
1197
1198/**
1199 * nes_exit_module - module unload entry point
1200 */
1201static void __exit nes_exit_module(void)
1202{
1203 nes_cm_stop();
1204 nes_remove_driver_sysfs(&nes_pci_driver);
1205
1206 pci_unregister_driver(&nes_pci_driver);
1207}
1208
1209
1210module_init(nes_init_module);
1211module_exit(nes_exit_module);
Linux kernel - Deliverables
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