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RDMA/nes: Add support for iWARP Port Mapper user space service
[linux-2.6-block.git] / drivers / infiniband / hw / nes / nes.c
CommitLineData
3c2d774c 1/*
c5488c57 2 * Copyright (c) 2006 - 2011 Intel Corporation. All rights reserved.
3c2d774c
GS		 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>
5a0e3ad6 47#include <linux/slab.h>
3c2d774c
GS		 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;
3c2d774c
GS		 69int interrupt_mod_interval = 0;
70
3c2d774c
GS		 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
0f0bee8b 81unsigned int nes_drv_opt = NES_DRV_OPT_DISABLE_INT_MOD | NES_DRV_OPT_ENABLE_PAU;
de182149 82module_param(nes_drv_opt, int, 0644);
3c2d774c
GS		 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
2b537c28
CT		 89unsigned int wqm_quanta = 0x10000;
90module_param(wqm_quanta, int, 0644);
91MODULE_PARM_DESC(wqm_quanta, "WQM quanta");
92
90ab5ee9 93static bool limit_maxrdreqsz;
63369366
CT		 94module_param(limit_maxrdreqsz, bool, 0644);
95MODULE_PARM_DESC(limit_maxrdreqsz, "Limit max read request size to 256 Bytes");
96
3c2d774c 97LIST_HEAD(nes_adapter_list);
1a855fbf 98static LIST_HEAD(nes_dev_list);
3c2d774c
GS		 99
100atomic_t qps_destroyed;
3c2d774c 101
3c2d774c
GS		 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[] = {
33085bb8
PH		 107 { PCI_VDEVICE(NETEFFECT, PCI_DEVICE_ID_NETEFFECT_NE020), },
108 { PCI_VDEVICE(NETEFFECT, PCI_DEVICE_ID_NETEFFECT_NE020_KR), },
3c2d774c
GS		 109 {0}
110};
111
112MODULE_DEVICE_TABLE(pci, nes_pci_table);
113
5647263c
TN		 114/* registered nes netlink callbacks */
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_HANDLE_ERR] = {.dump = iwpm_mapping_error_cb},
120 [RDMA_NL_IWPM_MAPINFO] = {.dump = iwpm_mapping_info_cb},
121 [RDMA_NL_IWPM_MAPINFO_NUM] = {.dump = iwpm_ack_mapping_info_cb}
122};
123
3c2d774c
GS		 124static int nes_inetaddr_event(struct notifier_block *, unsigned long, void *);
125static int nes_net_event(struct notifier_block *, unsigned long, void *);
126static int nes_notifiers_registered;
127
128
129static struct notifier_block nes_inetaddr_notifier = {
130 .notifier_call = nes_inetaddr_event
131};
132
133static struct notifier_block nes_net_notifier = {
134 .notifier_call = nes_net_event
135};
136
3c2d774c
GS		 137/**
138 * nes_inetaddr_event
139 */
140static int nes_inetaddr_event(struct notifier_block *notifier,
141 unsigned long event, void *ptr)
142{
143 struct in_ifaddr *ifa = ptr;
144 struct net_device *event_netdev = ifa->ifa_dev->dev;
145 struct nes_device *nesdev;
146 struct net_device *netdev;
7f6e7101 147 struct net_device *upper_dev;
3c2d774c 148 struct nes_vnic *nesvnic;
2a4c97ea 149 unsigned int is_bonded;
8cf14e38
HH		 150
151 nes_debug(NES_DBG_NETDEV, "nes_inetaddr_event: ip address %pI4, netmask %pI4.\n",
152 &ifa->ifa_address, &ifa->ifa_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);
7f6e7101 158 upper_dev = netdev_master_upper_dev_get(netdev);
1765a575 159 is_bonded = netif_is_bond_slave(netdev) &&
7f6e7101 160 (upper_dev == event_netdev);
2a4c97ea 161 if ((netdev == event_netdev) || is_bonded) {
3c2d774c
GS		 162 if (nesvnic->rdma_enabled == 0) {
163 nes_debug(NES_DBG_NETDEV, "Returning without processing event for %s since"
164 " RDMA is not enabled.\n",
165 netdev->name);
166 return NOTIFY_OK;
167 }
168 /* we have ifa->ifa_address/mask here if we need it */
169 switch (event) {
170 case NETDEV_DOWN:
171 nes_debug(NES_DBG_NETDEV, "event:DOWN\n");
172 nes_write_indexed(nesdev,
173 NES_IDX_DST_IP_ADDR+(0x10*PCI_FUNC(nesdev->pcidev->devfn)), 0);
174
175 nes_manage_arp_cache(netdev, netdev->dev_addr,
176 ntohl(nesvnic->local_ipaddr), NES_ARP_DELETE);
177 nesvnic->local_ipaddr = 0;
2a4c97ea
MS		 178 if (is_bonded)
179 continue;
180 else
181 return NOTIFY_OK;
3c2d774c
GS		 182 break;
183 case NETDEV_UP:
184 nes_debug(NES_DBG_NETDEV, "event:UP\n");
185
186 if (nesvnic->local_ipaddr != 0) {
187 nes_debug(NES_DBG_NETDEV, "Interface already has local_ipaddr\n");
188 return NOTIFY_OK;
189 }
2a4c97ea
MS		 190 /* fall through */
191 case NETDEV_CHANGEADDR:
3c2d774c 192 /* Add the address to the IP table */
7f6e7101 193 if (upper_dev)
2a4c97ea 194 nesvnic->local_ipaddr =
7f6e7101 195 ((struct in_device *)upper_dev->ip_ptr)->ifa_list->ifa_address;
2a4c97ea
MS		 196 else
197 nesvnic->local_ipaddr = ifa->ifa_address;
3c2d774c
GS		 198
199 nes_write_indexed(nesdev,
200 NES_IDX_DST_IP_ADDR+(0x10*PCI_FUNC(nesdev->pcidev->devfn)),
2a4c97ea 201 ntohl(nesvnic->local_ipaddr));
3c2d774c
GS		 202 nes_manage_arp_cache(netdev, netdev->dev_addr,
203 ntohl(nesvnic->local_ipaddr), NES_ARP_ADD);
2a4c97ea
MS		 204 if (is_bonded)
205 continue;
206 else
207 return NOTIFY_OK;
3c2d774c
GS		 208 break;
209 default:
210 break;
211 }
212 }
213 }
214
215 return NOTIFY_DONE;
216}
217
218
219/**
220 * nes_net_event
221 */
222static int nes_net_event(struct notifier_block *notifier,
223 unsigned long event, void *ptr)
224{
225 struct neighbour *neigh = ptr;
226 struct nes_device *nesdev;
227 struct net_device *netdev;
228 struct nes_vnic *nesvnic;
229
230 switch (event) {
231 case NETEVENT_NEIGH_UPDATE:
232 list_for_each_entry(nesdev, &nes_dev_list, list) {
233 /* nes_debug(NES_DBG_NETDEV, "Nesdev list entry = 0x%p.\n", nesdev); */
234 netdev = nesdev->netdev[0];
235 nesvnic = netdev_priv(netdev);
236 if (netdev == neigh->dev) {
237 if (nesvnic->rdma_enabled == 0) {
238 nes_debug(NES_DBG_NETDEV, "Skipping device %s since no RDMA\n",
239 netdev->name);
240 } else {
241 if (neigh->nud_state & NUD_VALID) {
242 nes_manage_arp_cache(neigh->dev, neigh->ha,
243 ntohl(*(__be32 *)neigh->primary_key), NES_ARP_ADD);
244 } else {
245 nes_manage_arp_cache(neigh->dev, neigh->ha,
246 ntohl(*(__be32 *)neigh->primary_key), NES_ARP_DELETE);
247 }
248 }
249 return NOTIFY_OK;
250 }
251 }
252 break;
253 default:
254 nes_debug(NES_DBG_NETDEV, "NETEVENT_ %lu undefined\n", event);
255 break;
256 }
257
258 return NOTIFY_DONE;
259}
260
261
262/**
263 * nes_add_ref
264 */
265void nes_add_ref(struct ib_qp *ibqp)
266{
267 struct nes_qp *nesqp;
268
269 nesqp = to_nesqp(ibqp);
270 nes_debug(NES_DBG_QP, "Bumping refcount for QP%u. Pre-inc value = %u\n",
271 ibqp->qp_num, atomic_read(&nesqp->refcount));
272 atomic_inc(&nesqp->refcount);
273}
274
275static void nes_cqp_rem_ref_callback(struct nes_device *nesdev, struct nes_cqp_request *cqp_request)
276{
277 unsigned long flags;
278 struct nes_qp *nesqp = cqp_request->cqp_callback_pointer;
279 struct nes_adapter *nesadapter = nesdev->nesadapter;
3c2d774c
GS		 280
281 atomic_inc(&qps_destroyed);
282
283 /* Free the control structures */
284
3c2d774c
GS		 285 if (nesqp->pbl_vbase) {
286 pci_free_consistent(nesdev->pcidev, nesqp->qp_mem_size,
287 nesqp->hwqp.q2_vbase, nesqp->hwqp.q2_pbase);
288 spin_lock_irqsave(&nesadapter->pbl_lock, flags);
289 nesadapter->free_256pbl++;
290 spin_unlock_irqrestore(&nesadapter->pbl_lock, flags);
291 pci_free_consistent(nesdev->pcidev, 256, nesqp->pbl_vbase, nesqp->pbl_pbase);
292 nesqp->pbl_vbase = NULL;
293
294 } else {
295 pci_free_consistent(nesdev->pcidev, nesqp->qp_mem_size,
296 nesqp->hwqp.sq_vbase, nesqp->hwqp.sq_pbase);
297 }
298 nes_free_resource(nesadapter, nesadapter->allocated_qps, nesqp->hwqp.qp_id);
299
6492cdf3 300 nesadapter->qp_table[nesqp->hwqp.qp_id-NES_FIRST_QPN] = NULL;
3c2d774c
GS		 301 kfree(nesqp->allocated_buffer);
302
303}
304
305/**
306 * nes_rem_ref
307 */
308void nes_rem_ref(struct ib_qp *ibqp)
309{
310 u64 u64temp;
311 struct nes_qp *nesqp;
312 struct nes_vnic *nesvnic = to_nesvnic(ibqp->device);
313 struct nes_device *nesdev = nesvnic->nesdev;
3c2d774c
GS		 314 struct nes_hw_cqp_wqe *cqp_wqe;
315 struct nes_cqp_request *cqp_request;
316 u32 opcode;
317
318 nesqp = to_nesqp(ibqp);
319
320 if (atomic_read(&nesqp->refcount) == 0) {
321 printk(KERN_INFO PFX "%s: Reference count already 0 for QP%d, last aeq = 0x%04X.\n",
33718363 322 __func__, ibqp->qp_num, nesqp->last_aeq);
3c2d774c
GS		 323 BUG();
324 }
325
326 if (atomic_dec_and_test(&nesqp->refcount)) {
0f0bee8b
FL		 327 if (nesqp->pau_mode)
328 nes_destroy_pau_qp(nesdev, nesqp);
329
3c2d774c
GS		 330 /* Destroy the QP */
331 cqp_request = nes_get_cqp_request(nesdev);
332 if (cqp_request == NULL) {
333 nes_debug(NES_DBG_QP, "Failed to get a cqp_request.\n");
334 return;
335 }
336 cqp_request->waiting = 0;
337 cqp_request->callback = 1;
338 cqp_request->cqp_callback = nes_cqp_rem_ref_callback;
339 cqp_request->cqp_callback_pointer = nesqp;
340 cqp_wqe = &cqp_request->cqp_wqe;
341
342 nes_fill_init_cqp_wqe(cqp_wqe, nesdev);
343 opcode = NES_CQP_DESTROY_QP | NES_CQP_QP_TYPE_IWARP;
344
345 if (nesqp->hte_added) {
346 opcode |= NES_CQP_QP_DEL_HTE;
347 nesqp->hte_added = 0;
348 }
349 set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_OPCODE_IDX, opcode);
350 set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_ID_IDX, nesqp->hwqp.qp_id);
351 u64temp = (u64)nesqp->nesqp_context_pbase;
352 set_wqe_64bit_value(cqp_wqe->wqe_words, NES_CQP_QP_WQE_CONTEXT_LOW_IDX, u64temp);
8294f297 353 nes_post_cqp_request(nesdev, cqp_request);
3c2d774c
GS		 354 }
355}
356
357
358/**
359 * nes_get_qp
360 */
361struct ib_qp *nes_get_qp(struct ib_device *device, int qpn)
362{
363 struct nes_vnic *nesvnic = to_nesvnic(device);
364 struct nes_device *nesdev = nesvnic->nesdev;
365 struct nes_adapter *nesadapter = nesdev->nesadapter;
366
367 if ((qpn < NES_FIRST_QPN) || (qpn >= (NES_FIRST_QPN + nesadapter->max_qp)))
368 return NULL;
369
370 return &nesadapter->qp_table[qpn - NES_FIRST_QPN]->ibqp;
371}
372
373
374/**
375 * nes_print_macaddr
376 */
377static void nes_print_macaddr(struct net_device *netdev)
378{
e174961c
JB		 379 nes_debug(NES_DBG_INIT, "%s: %pM, IRQ %u\n",
380 netdev->name, netdev->dev_addr, netdev->irq);
2bd01c5d 381}
3c2d774c
GS		 382
383/**
384 * nes_interrupt - handle interrupts
385 */
386static irqreturn_t nes_interrupt(int irq, void *dev_id)
387{
388 struct nes_device *nesdev = (struct nes_device *)dev_id;
389 int handled = 0;
390 u32 int_mask;
391 u32 int_req;
392 u32 int_stat;
393 u32 intf_int_stat;
394 u32 timer_stat;
395
396 if (nesdev->msi_enabled) {
397 /* No need to read the interrupt pending register if msi is enabled */
398 handled = 1;
399 } else {
400 if (unlikely(nesdev->nesadapter->hw_rev == NE020_REV)) {
401 /* Master interrupt enable provides synchronization for kicking off bottom half
402 when interrupt sharing is going on */
403 int_mask = nes_read32(nesdev->regs + NES_INT_MASK);
404 if (int_mask & 0x80000000) {
405 /* Check interrupt status to see if this might be ours */
406 int_stat = nes_read32(nesdev->regs + NES_INT_STAT);
407 int_req = nesdev->int_req;
408 if (int_stat&int_req) {
409 /* if interesting CEQ or AEQ is pending, claim the interrupt */
410 if ((int_stat&int_req) & (~(NES_INT_TIMER|NES_INT_INTF))) {
411 handled = 1;
412 } else {
413 if (((int_stat & int_req) & NES_INT_TIMER) == NES_INT_TIMER) {
414 /* Timer might be running but might be for another function */
415 timer_stat = nes_read32(nesdev->regs + NES_TIMER_STAT);
416 if ((timer_stat & nesdev->timer_int_req) != 0) {
417 handled = 1;
418 }
419 }
420 if ((((int_stat & int_req) & NES_INT_INTF) == NES_INT_INTF) &&
421 (handled == 0)) {
422 intf_int_stat = nes_read32(nesdev->regs+NES_INTF_INT_STAT);
423 if ((intf_int_stat & nesdev->intf_int_req) != 0) {
424 handled = 1;
425 }
426 }
427 }
428 if (handled) {
429 nes_write32(nesdev->regs+NES_INT_MASK, int_mask & (~0x80000000));
430 int_mask = nes_read32(nesdev->regs+NES_INT_MASK);
431 /* Save off the status to save an additional read */
432 nesdev->int_stat = int_stat;
433 nesdev->napi_isr_ran = 1;
434 }
435 }
436 }
437 } else {
438 handled = nes_read32(nesdev->regs+NES_INT_PENDING);
439 }
440 }
441
442 if (handled) {
443
444 if (nes_napi_isr(nesdev) == 0) {
445 tasklet_schedule(&nesdev->dpc_tasklet);
446
447 }
448 return IRQ_HANDLED;
449 } else {
450 return IRQ_NONE;
451 }
452}
453
454
455/**
456 * nes_probe - Device initialization
457 */
1e6d9abe 458static int nes_probe(struct pci_dev *pcidev, const struct pci_device_id *ent)
3c2d774c
GS		 459{
460 struct net_device *netdev = NULL;
461 struct nes_device *nesdev = NULL;
462 int ret = 0;
3c2d774c
GS		 463 void __iomem *mmio_regs = NULL;
464 u8 hw_rev;
465
466 assert(pcidev != NULL);
467 assert(ent != NULL);
468
469 printk(KERN_INFO PFX "NetEffect RNIC driver v%s loading. (%s)\n",
470 DRV_VERSION, pci_name(pcidev));
471
472 ret = pci_enable_device(pcidev);
473 if (ret) {
474 printk(KERN_ERR PFX "Unable to enable PCI device. (%s)\n", pci_name(pcidev));
475 goto bail0;
476 }
477
478 nes_debug(NES_DBG_INIT, "BAR0 (@0x%08lX) size = 0x%lX bytes\n",
479 (long unsigned int)pci_resource_start(pcidev, BAR_0),
480 (long unsigned int)pci_resource_len(pcidev, BAR_0));
481 nes_debug(NES_DBG_INIT, "BAR1 (@0x%08lX) size = 0x%lX bytes\n",
482 (long unsigned int)pci_resource_start(pcidev, BAR_1),
483 (long unsigned int)pci_resource_len(pcidev, BAR_1));
484
485 /* Make sure PCI base addr are MMIO */
486 if (!(pci_resource_flags(pcidev, BAR_0) & IORESOURCE_MEM) ||
487 !(pci_resource_flags(pcidev, BAR_1) & IORESOURCE_MEM)) {
488 printk(KERN_ERR PFX "PCI regions not an MMIO resource\n");
489 ret = -ENODEV;
490 goto bail1;
491 }
492
493 /* Reserve PCI I/O and memory resources */
494 ret = pci_request_regions(pcidev, DRV_NAME);
495 if (ret) {
496 printk(KERN_ERR PFX "Unable to request regions. (%s)\n", pci_name(pcidev));
497 goto bail1;
498 }
499
500 if ((sizeof(dma_addr_t) > 4)) {
6a35528a 501 ret = pci_set_dma_mask(pcidev, DMA_BIT_MASK(64));
3c2d774c
GS		 502 if (ret < 0) {
503 printk(KERN_ERR PFX "64b DMA mask configuration failed\n");
504 goto bail2;
505 }
6a35528a 506 ret = pci_set_consistent_dma_mask(pcidev, DMA_BIT_MASK(64));
3c2d774c
GS		 507 if (ret) {
508 printk(KERN_ERR PFX "64b DMA consistent mask configuration failed\n");
509 goto bail2;
510 }
511 } else {
284901a9 512 ret = pci_set_dma_mask(pcidev, DMA_BIT_MASK(32));
3c2d774c
GS		 513 if (ret < 0) {
514 printk(KERN_ERR PFX "32b DMA mask configuration failed\n");
515 goto bail2;
516 }
284901a9 517 ret = pci_set_consistent_dma_mask(pcidev, DMA_BIT_MASK(32));
3c2d774c
GS		 518 if (ret) {
519 printk(KERN_ERR PFX "32b DMA consistent mask configuration failed\n");
520 goto bail2;
521 }
522 }
523
524 pci_set_master(pcidev);
525
526 /* Allocate hardware structure */
527 nesdev = kzalloc(sizeof(struct nes_device), GFP_KERNEL);
528 if (!nesdev) {
529 printk(KERN_ERR PFX "%s: Unable to alloc hardware struct\n", pci_name(pcidev));
530 ret = -ENOMEM;
531 goto bail2;
532 }
533
534 nes_debug(NES_DBG_INIT, "Allocated nes device at %p\n", nesdev);
535 nesdev->pcidev = pcidev;
536 pci_set_drvdata(pcidev, nesdev);
537
538 pci_read_config_byte(pcidev, 0x0008, &hw_rev);
539 nes_debug(NES_DBG_INIT, "hw_rev=%u\n", hw_rev);
540
541 spin_lock_init(&nesdev->indexed_regs_lock);
542
543 /* Remap the PCI registers in adapter BAR0 to kernel VA space */
d85ddd83
JL		 544 mmio_regs = ioremap_nocache(pci_resource_start(pcidev, BAR_0),
545 pci_resource_len(pcidev, BAR_0));
3c2d774c
GS		 546 if (mmio_regs == NULL) {
547 printk(KERN_ERR PFX "Unable to remap BAR0\n");
548 ret = -EIO;
549 goto bail3;
550 }
551 nesdev->regs = mmio_regs;
552 nesdev->index_reg = 0x50 + (PCI_FUNC(pcidev->devfn)*8) + mmio_regs;
553
554 /* Ensure interrupts are disabled */
555 nes_write32(nesdev->regs+NES_INT_MASK, 0x7fffffff);
556
557 if (nes_drv_opt & NES_DRV_OPT_ENABLE_MSI) {
558 if (!pci_enable_msi(nesdev->pcidev)) {
559 nesdev->msi_enabled = 1;
560 nes_debug(NES_DBG_INIT, "MSI is enabled for device %s\n",
561 pci_name(pcidev));
562 } else {
563 nes_debug(NES_DBG_INIT, "MSI is disabled by linux for device %s\n",
564 pci_name(pcidev));
565 }
566 } else {
567 nes_debug(NES_DBG_INIT, "MSI not requested due to driver options for device %s\n",
568 pci_name(pcidev));
569 }
570
571 nesdev->csr_start = pci_resource_start(nesdev->pcidev, BAR_0);
572 nesdev->doorbell_region = pci_resource_start(nesdev->pcidev, BAR_1);
573
574 /* Init the adapter */
575 nesdev->nesadapter = nes_init_adapter(nesdev, hw_rev);
3c2d774c
GS		 576 if (!nesdev->nesadapter) {
577 printk(KERN_ERR PFX "Unable to initialize adapter.\n");
578 ret = -ENOMEM;
579 goto bail5;
580 }
a4435feb 581 nesdev->nesadapter->et_rx_coalesce_usecs_irq = interrupt_mod_interval;
2b537c28 582 nesdev->nesadapter->wqm_quanta = wqm_quanta;
3c2d774c
GS		 583
584 /* nesdev->base_doorbell_index =
585 nesdev->nesadapter->pd_config_base[PCI_FUNC(nesdev->pcidev->devfn)]; */
586 nesdev->base_doorbell_index = 1;
587 nesdev->doorbell_start = nesdev->nesadapter->doorbell_start;
fcb7ad31
CT		 588 if (nesdev->nesadapter->phy_type[0] == NES_PHY_TYPE_PUMA_1G) {
589 switch (PCI_FUNC(nesdev->pcidev->devfn) %
590 nesdev->nesadapter->port_count) {
591 case 1:
592 nesdev->mac_index = 2;
593 break;
594 case 2:
595 nesdev->mac_index = 1;
596 break;
597 case 3:
598 nesdev->mac_index = 3;
599 break;
600 case 0:
601 default:
602 nesdev->mac_index = 0;
603 }
604 } else {
605 nesdev->mac_index = PCI_FUNC(nesdev->pcidev->devfn) %
606 nesdev->nesadapter->port_count;
607 }
3c2d774c 608
63369366
CT		 609 if ((limit_maxrdreqsz ||
610 ((nesdev->nesadapter->phy_type[0] == NES_PHY_TYPE_GLADIUS) &&
611 (hw_rev == NE020_REV1))) &&
612 (pcie_get_readrq(pcidev) > 256)) {
613 if (pcie_set_readrq(pcidev, 256))
614 printk(KERN_ERR PFX "Unable to set max read request"
615 " to 256 bytes\n");
616 else
617 nes_debug(NES_DBG_INIT, "Max read request size set"
618 " to 256 bytes\n");
619 }
620
3c2d774c
GS		 621 tasklet_init(&nesdev->dpc_tasklet, nes_dpc, (unsigned long)nesdev);
622
623 /* bring up the Control QP */
624 if (nes_init_cqp(nesdev)) {
625 ret = -ENODEV;
626 goto bail6;
627 }
628
629 /* Arm the CCQ */
630 nes_write32(nesdev->regs+NES_CQE_ALLOC, NES_CQE_ALLOC_NOTIFY_NEXT |
631 PCI_FUNC(nesdev->pcidev->devfn));
632 nes_read32(nesdev->regs+NES_CQE_ALLOC);
633
634 /* Enable the interrupts */
635 nesdev->int_req = (0x101 << PCI_FUNC(nesdev->pcidev->devfn)) |
636 (1 << (PCI_FUNC(nesdev->pcidev->devfn)+16));
637 if (PCI_FUNC(nesdev->pcidev->devfn) < 4) {
fcb7ad31 638 nesdev->int_req |= (1 << (PCI_FUNC(nesdev->mac_index)+24));
3c2d774c
GS		 639 }
640
641 /* TODO: This really should be the first driver to load, not function 0 */
642 if (PCI_FUNC(nesdev->pcidev->devfn) == 0) {
643 /* pick up PCI and critical errors if the first driver to load */
644 nesdev->intf_int_req = NES_INTF_INT_PCIERR | NES_INTF_INT_CRITERR;
645 nesdev->int_req |= NES_INT_INTF;
646 } else {
647 nesdev->intf_int_req = 0;
648 }
649 nesdev->intf_int_req |= (1 << (PCI_FUNC(nesdev->pcidev->devfn)+16));
650 nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS0, 0);
651 nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS1, 0);
652 nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS2, 0x00001265);
653 nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS4, 0x18021804);
654
655 nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS3, 0x17801790);
656
657 /* deal with both periodic and one_shot */
658 nesdev->timer_int_req = 0x101 << PCI_FUNC(nesdev->pcidev->devfn);
659 nesdev->nesadapter->timer_int_req |= nesdev->timer_int_req;
660 nes_debug(NES_DBG_INIT, "setting int_req for function %u, nesdev = 0x%04X, adapter = 0x%04X\n",
661 PCI_FUNC(nesdev->pcidev->devfn),
662 nesdev->timer_int_req, nesdev->nesadapter->timer_int_req);
663
664 nes_write32(nesdev->regs+NES_INTF_INT_MASK, ~(nesdev->intf_int_req));
665
666 list_add_tail(&nesdev->list, &nes_dev_list);
667
668 /* Request an interrupt line for the driver */
669 ret = request_irq(pcidev->irq, nes_interrupt, IRQF_SHARED, DRV_NAME, nesdev);
670 if (ret) {
671 printk(KERN_ERR PFX "%s: requested IRQ %u is busy\n",
672 pci_name(pcidev), pcidev->irq);
673 goto bail65;
674 }
675
676 nes_write32(nesdev->regs+NES_INT_MASK, ~nesdev->int_req);
677
678 if (nes_notifiers_registered == 0) {
679 register_inetaddr_notifier(&nes_inetaddr_notifier);
680 register_netevent_notifier(&nes_net_notifier);
681 }
682 nes_notifiers_registered++;
683
5647263c
TN		 684 if (ibnl_add_client(RDMA_NL_NES, RDMA_NL_IWPM_NUM_OPS, nes_nl_cb_table))
685 printk(KERN_ERR PFX "%s[%u]: Failed to add netlink callback\n",
686 __func__, __LINE__);
687
688 ret = iwpm_init(RDMA_NL_NES);
689 if (ret) {
690 printk(KERN_ERR PFX "%s: port mapper initialization failed\n",
691 pci_name(pcidev));
692 goto bail7;
693 }
694
5f61b2c6
MS		 695 INIT_DELAYED_WORK(&nesdev->work, nes_recheck_link_status);
696
3c2d774c 697 /* Initialize network devices */
d07875bd
JL		 698 netdev = nes_netdev_init(nesdev, mmio_regs);
699 if (netdev == NULL) {
700 ret = -ENOMEM;
b2a899ea 701 goto bail7;
d07875bd 702 }
3c2d774c 703
b2a899ea
RD		 704 /* Register network device */
705 ret = register_netdev(netdev);
706 if (ret) {
707 printk(KERN_ERR PFX "Unable to register netdev, ret = %d\n", ret);
708 nes_netdev_destroy(netdev);
709 goto bail7;
710 }
3c2d774c 711
b2a899ea 712 nes_print_macaddr(netdev);
3c2d774c 713
b2a899ea
RD		 714 nesdev->netdev_count++;
715 nesdev->nesadapter->netdev_count++;
3c2d774c 716
748bfd9c 717 printk(KERN_INFO PFX "%s: NetEffect RNIC driver successfully loaded.\n",
3c2d774c
GS		 718 pci_name(pcidev));
719 return 0;
720
721 bail7:
722 printk(KERN_ERR PFX "bail7\n");
723 while (nesdev->netdev_count > 0) {
724 nesdev->netdev_count--;
725 nesdev->nesadapter->netdev_count--;
726
727 unregister_netdev(nesdev->netdev[nesdev->netdev_count]);
728 nes_netdev_destroy(nesdev->netdev[nesdev->netdev_count]);
729 }
730
731 nes_debug(NES_DBG_INIT, "netdev_count=%d, nesadapter->netdev_count=%d\n",
732 nesdev->netdev_count, nesdev->nesadapter->netdev_count);
5647263c 733 ibnl_remove_client(RDMA_NL_NES);
3c2d774c
GS		 734
735 nes_notifiers_registered--;
736 if (nes_notifiers_registered == 0) {
737 unregister_netevent_notifier(&nes_net_notifier);
738 unregister_inetaddr_notifier(&nes_inetaddr_notifier);
739 }
740
741 list_del(&nesdev->list);
742 nes_destroy_cqp(nesdev);
743
744 bail65:
745 printk(KERN_ERR PFX "bail65\n");
746 free_irq(pcidev->irq, nesdev);
747 if (nesdev->msi_enabled) {
748 pci_disable_msi(pcidev);
749 }
750 bail6:
751 printk(KERN_ERR PFX "bail6\n");
752 tasklet_kill(&nesdev->dpc_tasklet);
753 /* Deallocate the Adapter Structure */
754 nes_destroy_adapter(nesdev->nesadapter);
755
756 bail5:
757 printk(KERN_ERR PFX "bail5\n");
758 iounmap(nesdev->regs);
759
760 bail3:
761 printk(KERN_ERR PFX "bail3\n");
762 kfree(nesdev);
763
764 bail2:
765 pci_release_regions(pcidev);
766
767 bail1:
768 pci_disable_device(pcidev);
769
770 bail0:
771 return ret;
772}
773
774
775/**
776 * nes_remove - unload from kernel
777 */
1e6d9abe 778static void nes_remove(struct pci_dev *pcidev)
3c2d774c
GS		 779{
780 struct nes_device *nesdev = pci_get_drvdata(pcidev);
781 struct net_device *netdev;
782 int netdev_index = 0;
5f61b2c6 783 unsigned long flags;
3c2d774c
GS		 784
785 if (nesdev->netdev_count) {
786 netdev = nesdev->netdev[netdev_index];
787 if (netdev) {
788 netif_stop_queue(netdev);
789 unregister_netdev(netdev);
790 nes_netdev_destroy(netdev);
791
792 nesdev->netdev[netdev_index] = NULL;
793 nesdev->netdev_count--;
794 nesdev->nesadapter->netdev_count--;
795 }
796 }
5647263c
TN		 797 ibnl_remove_client(RDMA_NL_NES);
798 iwpm_exit(RDMA_NL_NES);
3c2d774c
GS		 799
800 nes_notifiers_registered--;
801 if (nes_notifiers_registered == 0) {
802 unregister_netevent_notifier(&nes_net_notifier);
803 unregister_inetaddr_notifier(&nes_inetaddr_notifier);
804 }
805
806 list_del(&nesdev->list);
807 nes_destroy_cqp(nesdev);
4cd1e5eb
RD		 808
809 free_irq(pcidev->irq, nesdev);
3c2d774c
GS		 810 tasklet_kill(&nesdev->dpc_tasklet);
811
5f61b2c6
MS		 812 spin_lock_irqsave(&nesdev->nesadapter->phy_lock, flags);
813 if (nesdev->link_recheck) {
814 spin_unlock_irqrestore(&nesdev->nesadapter->phy_lock, flags);
815 cancel_delayed_work_sync(&nesdev->work);
816 } else {
817 spin_unlock_irqrestore(&nesdev->nesadapter->phy_lock, flags);
818 }
819
3c2d774c
GS		 820 /* Deallocate the Adapter Structure */
821 nes_destroy_adapter(nesdev->nesadapter);
822
3c2d774c
GS		 823 if (nesdev->msi_enabled) {
824 pci_disable_msi(pcidev);
825 }
826
827 iounmap(nesdev->regs);
828 kfree(nesdev);
829
830 /* nes_debug(NES_DBG_SHUTDOWN, "calling pci_release_regions.\n"); */
831 pci_release_regions(pcidev);
832 pci_disable_device(pcidev);
833 pci_set_drvdata(pcidev, NULL);
834}
835
836
837static struct pci_driver nes_pci_driver = {
838 .name = DRV_NAME,
839 .id_table = nes_pci_table,
840 .probe = nes_probe,
1e6d9abe 841 .remove = nes_remove,
3c2d774c
GS		 842};
843
844static ssize_t nes_show_adapter(struct device_driver *ddp, char *buf)
845{
846 unsigned int devfn = 0xffffffff;
847 unsigned char bus_number = 0xff;
848 unsigned int i = 0;
849 struct nes_device *nesdev;
850
851 list_for_each_entry(nesdev, &nes_dev_list, list) {
852 if (i == ee_flsh_adapter) {
fcb7ad31
CT		 853 devfn = nesdev->pcidev->devfn;
854 bus_number = nesdev->pcidev->bus->number;
3c2d774c
GS		 855 break;
856 }
857 i++;
858 }
859
fcb7ad31 860 return snprintf(buf, PAGE_SIZE, "%x:%x\n", bus_number, devfn);
3c2d774c
GS		 861}
862
863static ssize_t nes_store_adapter(struct device_driver *ddp,
864 const char *buf, size_t count)
865{
866 char *p = (char *)buf;
867
868 ee_flsh_adapter = simple_strtoul(p, &p, 10);
869 return strnlen(buf, count);
870}
871
872static ssize_t nes_show_ee_cmd(struct device_driver *ddp, char *buf)
873{
874 u32 eeprom_cmd = 0xdead;
875 u32 i = 0;
876 struct nes_device *nesdev;
877
878 list_for_each_entry(nesdev, &nes_dev_list, list) {
879 if (i == ee_flsh_adapter) {
880 eeprom_cmd = nes_read32(nesdev->regs + NES_EEPROM_COMMAND);
881 break;
882 }
883 i++;
884 }
885 return snprintf(buf, PAGE_SIZE, "0x%x\n", eeprom_cmd);
886}
887
888static ssize_t nes_store_ee_cmd(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_COMMAND, val);
901 break;
902 }
903 i++;
904 }
905 }
906 return strnlen(buf, count);
907}
908
909static ssize_t nes_show_ee_data(struct device_driver *ddp, char *buf)
910{
911 u32 eeprom_data = 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 eeprom_data = nes_read32(nesdev->regs + NES_EEPROM_DATA);
918 break;
919 }
920 i++;
921 }
922
923 return snprintf(buf, PAGE_SIZE, "0x%x\n", eeprom_data);
924}
925
926static ssize_t nes_store_ee_data(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_EEPROM_DATA, val);
939 break;
940 }
941 i++;
942 }
943 }
944 return strnlen(buf, count);
945}
946
947static ssize_t nes_show_flash_cmd(struct device_driver *ddp, char *buf)
948{
949 u32 flash_cmd = 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_cmd = nes_read32(nesdev->regs + NES_FLASH_COMMAND);
956 break;
957 }
958 i++;
959 }
960
961 return snprintf(buf, PAGE_SIZE, "0x%x\n", flash_cmd);
962}
963
964static ssize_t nes_store_flash_cmd(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_COMMAND, val);
977 break;
978 }
979 i++;
980 }
981 }
982 return strnlen(buf, count);
983}
984
985static ssize_t nes_show_flash_data(struct device_driver *ddp, char *buf)
986{
987 u32 flash_data = 0xdead;
988 u32 i = 0;
989 struct nes_device *nesdev;
990
991 list_for_each_entry(nesdev, &nes_dev_list, list) {
992 if (i == ee_flsh_adapter) {
993 flash_data = nes_read32(nesdev->regs + NES_FLASH_DATA);
994 break;
995 }
996 i++;
997 }
998
999 return snprintf(buf, PAGE_SIZE, "0x%x\n", flash_data);
1000}
1001
1002static ssize_t nes_store_flash_data(struct device_driver *ddp,
1003 const char *buf, size_t count)
1004{
1005 char *p = (char *)buf;
1006 u32 val;
1007 u32 i = 0;
1008 struct nes_device *nesdev;
1009
1010 if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
1011 val = simple_strtoul(p, &p, 16);
1012 list_for_each_entry(nesdev, &nes_dev_list, list) {
1013 if (i == ee_flsh_adapter) {
1014 nes_write32(nesdev->regs + NES_FLASH_DATA, val);
1015 break;
1016 }
1017 i++;
1018 }
1019 }
1020 return strnlen(buf, count);
1021}
1022
1023static ssize_t nes_show_nonidx_addr(struct device_driver *ddp, char *buf)
1024{
1025 return snprintf(buf, PAGE_SIZE, "0x%x\n", sysfs_nonidx_addr);
1026}
1027
1028static ssize_t nes_store_nonidx_addr(struct device_driver *ddp,
1029 const char *buf, size_t count)
1030{
1031 char *p = (char *)buf;
1032
1033 if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X')
1034 sysfs_nonidx_addr = simple_strtoul(p, &p, 16);
1035
1036 return strnlen(buf, count);
1037}
1038
1039static ssize_t nes_show_nonidx_data(struct device_driver *ddp, char *buf)
1040{
1041 u32 nonidx_data = 0xdead;
1042 u32 i = 0;
1043 struct nes_device *nesdev;
1044
1045 list_for_each_entry(nesdev, &nes_dev_list, list) {
1046 if (i == ee_flsh_adapter) {
1047 nonidx_data = nes_read32(nesdev->regs + sysfs_nonidx_addr);
1048 break;
1049 }
1050 i++;
1051 }
1052
1053 return snprintf(buf, PAGE_SIZE, "0x%x\n", nonidx_data);
1054}
1055
1056static ssize_t nes_store_nonidx_data(struct device_driver *ddp,
1057 const char *buf, size_t count)
1058{
1059 char *p = (char *)buf;
1060 u32 val;
1061 u32 i = 0;
1062 struct nes_device *nesdev;
1063
1064 if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
1065 val = simple_strtoul(p, &p, 16);
1066 list_for_each_entry(nesdev, &nes_dev_list, list) {
1067 if (i == ee_flsh_adapter) {
1068 nes_write32(nesdev->regs + sysfs_nonidx_addr, val);
1069 break;
1070 }
1071 i++;
1072 }
1073 }
1074 return strnlen(buf, count);
1075}
1076
1077static ssize_t nes_show_idx_addr(struct device_driver *ddp, char *buf)
1078{
1079 return snprintf(buf, PAGE_SIZE, "0x%x\n", sysfs_idx_addr);
1080}
1081
1082static ssize_t nes_store_idx_addr(struct device_driver *ddp,
1083 const char *buf, size_t count)
1084{
1085 char *p = (char *)buf;
1086
1087 if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X')
1088 sysfs_idx_addr = simple_strtoul(p, &p, 16);
1089
1090 return strnlen(buf, count);
1091}
1092
1093static ssize_t nes_show_idx_data(struct device_driver *ddp, char *buf)
1094{
1095 u32 idx_data = 0xdead;
1096 u32 i = 0;
1097 struct nes_device *nesdev;
1098
1099 list_for_each_entry(nesdev, &nes_dev_list, list) {
1100 if (i == ee_flsh_adapter) {
1101 idx_data = nes_read_indexed(nesdev, sysfs_idx_addr);
1102 break;
1103 }
1104 i++;
1105 }
1106
1107 return snprintf(buf, PAGE_SIZE, "0x%x\n", idx_data);
1108}
1109
1110static ssize_t nes_store_idx_data(struct device_driver *ddp,
1111 const char *buf, size_t count)
1112{
1113 char *p = (char *)buf;
1114 u32 val;
1115 u32 i = 0;
1116 struct nes_device *nesdev;
1117
1118 if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
1119 val = simple_strtoul(p, &p, 16);
1120 list_for_each_entry(nesdev, &nes_dev_list, list) {
1121 if (i == ee_flsh_adapter) {
1122 nes_write_indexed(nesdev, sysfs_idx_addr, val);
1123 break;
1124 }
1125 i++;
1126 }
1127 }
1128 return strnlen(buf, count);
1129}
1130
2b537c28
CT		 1131
1132/**
1133 * nes_show_wqm_quanta
1134 */
1135static ssize_t nes_show_wqm_quanta(struct device_driver *ddp, char *buf)
1136{
1137 u32 wqm_quanta_value = 0xdead;
1138 u32 i = 0;
1139 struct nes_device *nesdev;
1140
1141 list_for_each_entry(nesdev, &nes_dev_list, list) {
1142 if (i == ee_flsh_adapter) {
1143 wqm_quanta_value = nesdev->nesadapter->wqm_quanta;
1144 break;
1145 }
1146 i++;
1147 }
1148
df924f83 1149 return snprintf(buf, PAGE_SIZE, "0x%X\n", wqm_quanta_value);
2b537c28
CT		 1150}
1151
1152
1153/**
1154 * nes_store_wqm_quanta
1155 */
1156static ssize_t nes_store_wqm_quanta(struct device_driver *ddp,
1157 const char *buf, size_t count)
1158{
1159 unsigned long wqm_quanta_value;
1160 u32 wqm_config1;
1161 u32 i = 0;
1162 struct nes_device *nesdev;
1163
52f81dba
LY		 1164 if (kstrtoul(buf, 0, &wqm_quanta_value) < 0)
1165 return -EINVAL;
1166
2b537c28
CT		 1167 list_for_each_entry(nesdev, &nes_dev_list, list) {
1168 if (i == ee_flsh_adapter) {
1169 nesdev->nesadapter->wqm_quanta = wqm_quanta_value;
1170 wqm_config1 = nes_read_indexed(nesdev,
1171 NES_IDX_WQM_CONFIG1);
1172 nes_write_indexed(nesdev, NES_IDX_WQM_CONFIG1,
1173 ((wqm_quanta_value << 1) |
1174 (wqm_config1 & 0x00000001)));
1175 break;
1176 }
1177 i++;
1178 }
1179 return strnlen(buf, count);
1180}
1181
3c2d774c
GS		 1182static DRIVER_ATTR(adapter, S_IRUSR | S_IWUSR,
1183 nes_show_adapter, nes_store_adapter);
1184static DRIVER_ATTR(eeprom_cmd, S_IRUSR | S_IWUSR,
1185 nes_show_ee_cmd, nes_store_ee_cmd);
1186static DRIVER_ATTR(eeprom_data, S_IRUSR | S_IWUSR,
1187 nes_show_ee_data, nes_store_ee_data);
1188static DRIVER_ATTR(flash_cmd, S_IRUSR | S_IWUSR,
1189 nes_show_flash_cmd, nes_store_flash_cmd);
1190static DRIVER_ATTR(flash_data, S_IRUSR | S_IWUSR,
1191 nes_show_flash_data, nes_store_flash_data);
1192static DRIVER_ATTR(nonidx_addr, S_IRUSR | S_IWUSR,
1193 nes_show_nonidx_addr, nes_store_nonidx_addr);
1194static DRIVER_ATTR(nonidx_data, S_IRUSR | S_IWUSR,
1195 nes_show_nonidx_data, nes_store_nonidx_data);
1196static DRIVER_ATTR(idx_addr, S_IRUSR | S_IWUSR,
1197 nes_show_idx_addr, nes_store_idx_addr);
1198static DRIVER_ATTR(idx_data, S_IRUSR | S_IWUSR,
1199 nes_show_idx_data, nes_store_idx_data);
2b537c28
CT		 1200static DRIVER_ATTR(wqm_quanta, S_IRUSR | S_IWUSR,
1201 nes_show_wqm_quanta, nes_store_wqm_quanta);
3c2d774c
GS		 1202
1203static int nes_create_driver_sysfs(struct pci_driver *drv)
1204{
1205 int error;
1206 error = driver_create_file(&drv->driver, &driver_attr_adapter);
1207 error |= driver_create_file(&drv->driver, &driver_attr_eeprom_cmd);
1208 error |= driver_create_file(&drv->driver, &driver_attr_eeprom_data);
1209 error |= driver_create_file(&drv->driver, &driver_attr_flash_cmd);
1210 error |= driver_create_file(&drv->driver, &driver_attr_flash_data);
1211 error |= driver_create_file(&drv->driver, &driver_attr_nonidx_addr);
1212 error |= driver_create_file(&drv->driver, &driver_attr_nonidx_data);
1213 error |= driver_create_file(&drv->driver, &driver_attr_idx_addr);
1214 error |= driver_create_file(&drv->driver, &driver_attr_idx_data);
2b537c28 1215 error |= driver_create_file(&drv->driver, &driver_attr_wqm_quanta);
3c2d774c
GS		 1216 return error;
1217}
1218
1219static void nes_remove_driver_sysfs(struct pci_driver *drv)
1220{
1221 driver_remove_file(&drv->driver, &driver_attr_adapter);
1222 driver_remove_file(&drv->driver, &driver_attr_eeprom_cmd);
1223 driver_remove_file(&drv->driver, &driver_attr_eeprom_data);
1224 driver_remove_file(&drv->driver, &driver_attr_flash_cmd);
1225 driver_remove_file(&drv->driver, &driver_attr_flash_data);
1226 driver_remove_file(&drv->driver, &driver_attr_nonidx_addr);
1227 driver_remove_file(&drv->driver, &driver_attr_nonidx_data);
1228 driver_remove_file(&drv->driver, &driver_attr_idx_addr);
1229 driver_remove_file(&drv->driver, &driver_attr_idx_data);
2b537c28 1230 driver_remove_file(&drv->driver, &driver_attr_wqm_quanta);
3c2d774c
GS		 1231}
1232
1233/**
1234 * nes_init_module - module initialization entry point
1235 */
1236static int __init nes_init_module(void)
1237{
1238 int retval;
1239 int retval1;
1240
1241 retval = nes_cm_start();
1242 if (retval) {
1243 printk(KERN_ERR PFX "Unable to start NetEffect iWARP CM.\n");
1244 return retval;
1245 }
1246 retval = pci_register_driver(&nes_pci_driver);
1247 if (retval >= 0) {
1248 retval1 = nes_create_driver_sysfs(&nes_pci_driver);
1249 if (retval1 < 0)
1250 printk(KERN_ERR PFX "Unable to create NetEffect sys files.\n");
1251 }
1252 return retval;
1253}
1254
1255
1256/**
1257 * nes_exit_module - module unload entry point
1258 */
1259static void __exit nes_exit_module(void)
1260{
1261 nes_cm_stop();
1262 nes_remove_driver_sysfs(&nes_pci_driver);
1263
1264 pci_unregister_driver(&nes_pci_driver);
1265}
1266
1267
1268module_init(nes_init_module);
1269module_exit(nes_exit_module);
Linux 6.x block layer and io_uring tree(s)