2 * Copyright (c) 2006 - 2008 NetEffect, Inc. All rights reserved.
3 * Copyright (c) 2005 Open Grid Computing, Inc. All rights reserved.
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:
11 * Redistribution and use in source and binary forms, with or
12 * without modification, are permitted provided that the following
15 * - Redistributions of source code must retain the above
16 * copyright notice, this list of conditions and the following
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.
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
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>
44 #include <linux/init.h>
45 #include <linux/if_arp.h>
46 #include <linux/highmem.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>
57 #include <net/netevent.h>
58 #include <net/neighbour.h>
59 #include <linux/route.h>
60 #include <net/ip_fib.h>
62 MODULE_AUTHOR("NetEffect");
63 MODULE_DESCRIPTION("NetEffect RNIC Low-level iWARP Driver");
64 MODULE_LICENSE("Dual BSD/GPL");
65 MODULE_VERSION(DRV_VERSION
);
68 int interrupt_mod_interval
= 0;
71 /* Interoperability */
73 module_param(mpa_version
, int, 0);
74 MODULE_PARM_DESC(mpa_version
, "MPA version to be used int MPA Req/Resp (0 or 1)");
76 /* Interoperability */
77 int disable_mpa_crc
= 0;
78 module_param(disable_mpa_crc
, int, 0);
79 MODULE_PARM_DESC(disable_mpa_crc
, "Disable checking of MPA CRC");
81 unsigned int send_first
= 0;
82 module_param(send_first
, int, 0);
83 MODULE_PARM_DESC(send_first
, "Send RDMA Message First on Active Connection");
86 unsigned int nes_drv_opt
= 0;
87 module_param(nes_drv_opt
, int, 0);
88 MODULE_PARM_DESC(nes_drv_opt
, "Driver option parameters");
90 unsigned int nes_debug_level
= 0;
91 module_param_named(debug_level
, nes_debug_level
, uint
, 0644);
92 MODULE_PARM_DESC(debug_level
, "Enable debug output level");
94 unsigned int nes_lro_max_aggr
= NES_LRO_MAX_AGGR
;
95 module_param(nes_lro_max_aggr
, int, NES_LRO_MAX_AGGR
);
96 MODULE_PARM_DESC(nes_mro_max_aggr
, " nic LRO MAX packet aggregation");
98 LIST_HEAD(nes_adapter_list
);
99 static LIST_HEAD(nes_dev_list
);
101 atomic_t qps_destroyed
;
103 static unsigned int ee_flsh_adapter
;
104 static unsigned int sysfs_nonidx_addr
;
105 static unsigned int sysfs_idx_addr
;
107 static struct pci_device_id nes_pci_table
[] = {
108 {PCI_VENDOR_ID_NETEFFECT
, PCI_DEVICE_ID_NETEFFECT_NE020
, PCI_ANY_ID
, PCI_ANY_ID
},
112 MODULE_DEVICE_TABLE(pci
, nes_pci_table
);
114 static int nes_inetaddr_event(struct notifier_block
*, unsigned long, void *);
115 static int nes_net_event(struct notifier_block
*, unsigned long, void *);
116 static int nes_notifiers_registered
;
119 static struct notifier_block nes_inetaddr_notifier
= {
120 .notifier_call
= nes_inetaddr_event
123 static struct notifier_block nes_net_notifier
= {
124 .notifier_call
= nes_net_event
133 static int nes_inetaddr_event(struct notifier_block
*notifier
,
134 unsigned long event
, void *ptr
)
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
;
144 addr
= ntohl(ifa
->ifa_address
);
145 mask
= ntohl(ifa
->ifa_mask
);
146 nes_debug(NES_DBG_NETDEV
, "nes_inetaddr_event: ip address " NIPQUAD_FMT
147 ", netmask " NIPQUAD_FMT
".\n",
148 HIPQUAD(addr
), HIPQUAD(mask
));
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",
161 /* we have ifa->ifa_address/mask here if we need it */
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);
168 nes_manage_arp_cache(netdev
, netdev
->dev_addr
,
169 ntohl(nesvnic
->local_ipaddr
), NES_ARP_DELETE
);
170 nesvnic
->local_ipaddr
= 0;
174 nes_debug(NES_DBG_NETDEV
, "event:UP\n");
176 if (nesvnic
->local_ipaddr
!= 0) {
177 nes_debug(NES_DBG_NETDEV
, "Interface already has local_ipaddr\n");
180 /* Add the address to the IP table */
181 nesvnic
->local_ipaddr
= ifa
->ifa_address
;
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
);
203 static int nes_net_event(struct notifier_block
*notifier
,
204 unsigned long event
, void *ptr
)
206 struct neighbour
*neigh
= ptr
;
207 struct nes_device
*nesdev
;
208 struct net_device
*netdev
;
209 struct nes_vnic
*nesvnic
;
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",
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
);
226 nes_manage_arp_cache(neigh
->dev
, neigh
->ha
,
227 ntohl(*(__be32
*)neigh
->primary_key
), NES_ARP_DELETE
);
235 nes_debug(NES_DBG_NETDEV
, "NETEVENT_ %lu undefined\n", event
);
246 void nes_add_ref(struct ib_qp
*ibqp
)
248 struct nes_qp
*nesqp
;
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
);
256 static void nes_cqp_rem_ref_callback(struct nes_device
*nesdev
, struct nes_cqp_request
*cqp_request
)
259 struct nes_qp
*nesqp
= cqp_request
->cqp_callback_pointer
;
260 struct nes_adapter
*nesadapter
= nesdev
->nesadapter
;
263 atomic_inc(&qps_destroyed
);
265 /* Free the control structures */
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
;
278 pci_free_consistent(nesdev
->pcidev
, nesqp
->qp_mem_size
,
279 nesqp
->hwqp
.sq_vbase
, nesqp
->hwqp
.sq_pbase
);
281 nes_free_resource(nesadapter
, nesadapter
->allocated_qps
, nesqp
->hwqp
.qp_id
);
283 kfree(nesqp
->allocated_buffer
);
290 void nes_rem_ref(struct ib_qp
*ibqp
)
293 struct nes_qp
*nesqp
;
294 struct nes_vnic
*nesvnic
= to_nesvnic(ibqp
->device
);
295 struct nes_device
*nesdev
= nesvnic
->nesdev
;
296 struct nes_adapter
*nesadapter
= nesdev
->nesadapter
;
297 struct nes_hw_cqp_wqe
*cqp_wqe
;
298 struct nes_cqp_request
*cqp_request
;
301 nesqp
= to_nesqp(ibqp
);
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",
305 __func__
, ibqp
->qp_num
, nesqp
->last_aeq
);
309 if (atomic_dec_and_test(&nesqp
->refcount
)) {
310 nesadapter
->qp_table
[nesqp
->hwqp
.qp_id
-NES_FIRST_QPN
] = NULL
;
313 cqp_request
= nes_get_cqp_request(nesdev
);
314 if (cqp_request
== NULL
) {
315 nes_debug(NES_DBG_QP
, "Failed to get a cqp_request.\n");
318 cqp_request
->waiting
= 0;
319 cqp_request
->callback
= 1;
320 cqp_request
->cqp_callback
= nes_cqp_rem_ref_callback
;
321 cqp_request
->cqp_callback_pointer
= nesqp
;
322 cqp_wqe
= &cqp_request
->cqp_wqe
;
324 nes_fill_init_cqp_wqe(cqp_wqe
, nesdev
);
325 opcode
= NES_CQP_DESTROY_QP
| NES_CQP_QP_TYPE_IWARP
;
327 if (nesqp
->hte_added
) {
328 opcode
|= NES_CQP_QP_DEL_HTE
;
329 nesqp
->hte_added
= 0;
331 set_wqe_32bit_value(cqp_wqe
->wqe_words
, NES_CQP_WQE_OPCODE_IDX
, opcode
);
332 set_wqe_32bit_value(cqp_wqe
->wqe_words
, NES_CQP_WQE_ID_IDX
, nesqp
->hwqp
.qp_id
);
333 u64temp
= (u64
)nesqp
->nesqp_context_pbase
;
334 set_wqe_64bit_value(cqp_wqe
->wqe_words
, NES_CQP_QP_WQE_CONTEXT_LOW_IDX
, u64temp
);
335 nes_post_cqp_request(nesdev
, cqp_request
, NES_CQP_REQUEST_RING_DOORBELL
);
343 struct ib_qp
*nes_get_qp(struct ib_device
*device
, int qpn
)
345 struct nes_vnic
*nesvnic
= to_nesvnic(device
);
346 struct nes_device
*nesdev
= nesvnic
->nesdev
;
347 struct nes_adapter
*nesadapter
= nesdev
->nesadapter
;
349 if ((qpn
< NES_FIRST_QPN
) || (qpn
>= (NES_FIRST_QPN
+ nesadapter
->max_qp
)))
352 return &nesadapter
->qp_table
[qpn
- NES_FIRST_QPN
]->ibqp
;
359 static void nes_print_macaddr(struct net_device
*netdev
)
361 DECLARE_MAC_BUF(mac
);
363 nes_debug(NES_DBG_INIT
, "%s: %s, IRQ %u\n",
364 netdev
->name
, print_mac(mac
, netdev
->dev_addr
), netdev
->irq
);
368 * nes_interrupt - handle interrupts
370 static irqreturn_t
nes_interrupt(int irq
, void *dev_id
)
372 struct nes_device
*nesdev
= (struct nes_device
*)dev_id
;
380 if (nesdev
->msi_enabled
) {
381 /* No need to read the interrupt pending register if msi is enabled */
384 if (unlikely(nesdev
->nesadapter
->hw_rev
== NE020_REV
)) {
385 /* Master interrupt enable provides synchronization for kicking off bottom half
386 when interrupt sharing is going on */
387 int_mask
= nes_read32(nesdev
->regs
+ NES_INT_MASK
);
388 if (int_mask
& 0x80000000) {
389 /* Check interrupt status to see if this might be ours */
390 int_stat
= nes_read32(nesdev
->regs
+ NES_INT_STAT
);
391 int_req
= nesdev
->int_req
;
392 if (int_stat
&int_req
) {
393 /* if interesting CEQ or AEQ is pending, claim the interrupt */
394 if ((int_stat
&int_req
) & (~(NES_INT_TIMER
|NES_INT_INTF
))) {
397 if (((int_stat
& int_req
) & NES_INT_TIMER
) == NES_INT_TIMER
) {
398 /* Timer might be running but might be for another function */
399 timer_stat
= nes_read32(nesdev
->regs
+ NES_TIMER_STAT
);
400 if ((timer_stat
& nesdev
->timer_int_req
) != 0) {
404 if ((((int_stat
& int_req
) & NES_INT_INTF
) == NES_INT_INTF
) &&
406 intf_int_stat
= nes_read32(nesdev
->regs
+NES_INTF_INT_STAT
);
407 if ((intf_int_stat
& nesdev
->intf_int_req
) != 0) {
413 nes_write32(nesdev
->regs
+NES_INT_MASK
, int_mask
& (~0x80000000));
414 int_mask
= nes_read32(nesdev
->regs
+NES_INT_MASK
);
415 /* Save off the status to save an additional read */
416 nesdev
->int_stat
= int_stat
;
417 nesdev
->napi_isr_ran
= 1;
422 handled
= nes_read32(nesdev
->regs
+NES_INT_PENDING
);
428 if (nes_napi_isr(nesdev
) == 0) {
429 tasklet_schedule(&nesdev
->dpc_tasklet
);
440 * nes_probe - Device initialization
442 static int __devinit
nes_probe(struct pci_dev
*pcidev
, const struct pci_device_id
*ent
)
444 struct net_device
*netdev
= NULL
;
445 struct nes_device
*nesdev
= NULL
;
447 struct nes_vnic
*nesvnic
= NULL
;
448 void __iomem
*mmio_regs
= NULL
;
451 assert(pcidev
!= NULL
);
454 printk(KERN_INFO PFX
"NetEffect RNIC driver v%s loading. (%s)\n",
455 DRV_VERSION
, pci_name(pcidev
));
457 ret
= pci_enable_device(pcidev
);
459 printk(KERN_ERR PFX
"Unable to enable PCI device. (%s)\n", pci_name(pcidev
));
463 nes_debug(NES_DBG_INIT
, "BAR0 (@0x%08lX) size = 0x%lX bytes\n",
464 (long unsigned int)pci_resource_start(pcidev
, BAR_0
),
465 (long unsigned int)pci_resource_len(pcidev
, BAR_0
));
466 nes_debug(NES_DBG_INIT
, "BAR1 (@0x%08lX) size = 0x%lX bytes\n",
467 (long unsigned int)pci_resource_start(pcidev
, BAR_1
),
468 (long unsigned int)pci_resource_len(pcidev
, BAR_1
));
470 /* Make sure PCI base addr are MMIO */
471 if (!(pci_resource_flags(pcidev
, BAR_0
) & IORESOURCE_MEM
) ||
472 !(pci_resource_flags(pcidev
, BAR_1
) & IORESOURCE_MEM
)) {
473 printk(KERN_ERR PFX
"PCI regions not an MMIO resource\n");
478 /* Reserve PCI I/O and memory resources */
479 ret
= pci_request_regions(pcidev
, DRV_NAME
);
481 printk(KERN_ERR PFX
"Unable to request regions. (%s)\n", pci_name(pcidev
));
485 if ((sizeof(dma_addr_t
) > 4)) {
486 ret
= pci_set_dma_mask(pcidev
, DMA_64BIT_MASK
);
488 printk(KERN_ERR PFX
"64b DMA mask configuration failed\n");
491 ret
= pci_set_consistent_dma_mask(pcidev
, DMA_64BIT_MASK
);
493 printk(KERN_ERR PFX
"64b DMA consistent mask configuration failed\n");
497 ret
= pci_set_dma_mask(pcidev
, DMA_32BIT_MASK
);
499 printk(KERN_ERR PFX
"32b DMA mask configuration failed\n");
502 ret
= pci_set_consistent_dma_mask(pcidev
, DMA_32BIT_MASK
);
504 printk(KERN_ERR PFX
"32b DMA consistent mask configuration failed\n");
509 pci_set_master(pcidev
);
511 /* Allocate hardware structure */
512 nesdev
= kzalloc(sizeof(struct nes_device
), GFP_KERNEL
);
514 printk(KERN_ERR PFX
"%s: Unable to alloc hardware struct\n", pci_name(pcidev
));
519 nes_debug(NES_DBG_INIT
, "Allocated nes device at %p\n", nesdev
);
520 nesdev
->pcidev
= pcidev
;
521 pci_set_drvdata(pcidev
, nesdev
);
523 pci_read_config_byte(pcidev
, 0x0008, &hw_rev
);
524 nes_debug(NES_DBG_INIT
, "hw_rev=%u\n", hw_rev
);
526 spin_lock_init(&nesdev
->indexed_regs_lock
);
528 /* Remap the PCI registers in adapter BAR0 to kernel VA space */
529 mmio_regs
= ioremap_nocache(pci_resource_start(pcidev
, BAR_0
), sizeof(mmio_regs
));
530 if (mmio_regs
== NULL
) {
531 printk(KERN_ERR PFX
"Unable to remap BAR0\n");
535 nesdev
->regs
= mmio_regs
;
536 nesdev
->index_reg
= 0x50 + (PCI_FUNC(pcidev
->devfn
)*8) + mmio_regs
;
538 /* Ensure interrupts are disabled */
539 nes_write32(nesdev
->regs
+NES_INT_MASK
, 0x7fffffff);
541 if (nes_drv_opt
& NES_DRV_OPT_ENABLE_MSI
) {
542 if (!pci_enable_msi(nesdev
->pcidev
)) {
543 nesdev
->msi_enabled
= 1;
544 nes_debug(NES_DBG_INIT
, "MSI is enabled for device %s\n",
547 nes_debug(NES_DBG_INIT
, "MSI is disabled by linux for device %s\n",
551 nes_debug(NES_DBG_INIT
, "MSI not requested due to driver options for device %s\n",
555 nesdev
->csr_start
= pci_resource_start(nesdev
->pcidev
, BAR_0
);
556 nesdev
->doorbell_region
= pci_resource_start(nesdev
->pcidev
, BAR_1
);
558 /* Init the adapter */
559 nesdev
->nesadapter
= nes_init_adapter(nesdev
, hw_rev
);
560 if (!nesdev
->nesadapter
) {
561 printk(KERN_ERR PFX
"Unable to initialize adapter.\n");
565 nesdev
->nesadapter
->et_rx_coalesce_usecs_irq
= interrupt_mod_interval
;
567 /* nesdev->base_doorbell_index =
568 nesdev->nesadapter->pd_config_base[PCI_FUNC(nesdev->pcidev->devfn)]; */
569 nesdev
->base_doorbell_index
= 1;
570 nesdev
->doorbell_start
= nesdev
->nesadapter
->doorbell_start
;
571 nesdev
->mac_index
= PCI_FUNC(nesdev
->pcidev
->devfn
) % nesdev
->nesadapter
->port_count
;
573 tasklet_init(&nesdev
->dpc_tasklet
, nes_dpc
, (unsigned long)nesdev
);
575 /* bring up the Control QP */
576 if (nes_init_cqp(nesdev
)) {
582 nes_write32(nesdev
->regs
+NES_CQE_ALLOC
, NES_CQE_ALLOC_NOTIFY_NEXT
|
583 PCI_FUNC(nesdev
->pcidev
->devfn
));
584 nes_read32(nesdev
->regs
+NES_CQE_ALLOC
);
586 /* Enable the interrupts */
587 nesdev
->int_req
= (0x101 << PCI_FUNC(nesdev
->pcidev
->devfn
)) |
588 (1 << (PCI_FUNC(nesdev
->pcidev
->devfn
)+16));
589 if (PCI_FUNC(nesdev
->pcidev
->devfn
) < 4) {
590 nesdev
->int_req
|= (1 << (PCI_FUNC(nesdev
->pcidev
->devfn
)+24));
593 /* TODO: This really should be the first driver to load, not function 0 */
594 if (PCI_FUNC(nesdev
->pcidev
->devfn
) == 0) {
595 /* pick up PCI and critical errors if the first driver to load */
596 nesdev
->intf_int_req
= NES_INTF_INT_PCIERR
| NES_INTF_INT_CRITERR
;
597 nesdev
->int_req
|= NES_INT_INTF
;
599 nesdev
->intf_int_req
= 0;
601 nesdev
->intf_int_req
|= (1 << (PCI_FUNC(nesdev
->pcidev
->devfn
)+16));
602 nes_write_indexed(nesdev
, NES_IDX_DEBUG_ERROR_MASKS0
, 0);
603 nes_write_indexed(nesdev
, NES_IDX_DEBUG_ERROR_MASKS1
, 0);
604 nes_write_indexed(nesdev
, NES_IDX_DEBUG_ERROR_MASKS2
, 0x00001265);
605 nes_write_indexed(nesdev
, NES_IDX_DEBUG_ERROR_MASKS4
, 0x18021804);
607 nes_write_indexed(nesdev
, NES_IDX_DEBUG_ERROR_MASKS3
, 0x17801790);
609 /* deal with both periodic and one_shot */
610 nesdev
->timer_int_req
= 0x101 << PCI_FUNC(nesdev
->pcidev
->devfn
);
611 nesdev
->nesadapter
->timer_int_req
|= nesdev
->timer_int_req
;
612 nes_debug(NES_DBG_INIT
, "setting int_req for function %u, nesdev = 0x%04X, adapter = 0x%04X\n",
613 PCI_FUNC(nesdev
->pcidev
->devfn
),
614 nesdev
->timer_int_req
, nesdev
->nesadapter
->timer_int_req
);
616 nes_write32(nesdev
->regs
+NES_INTF_INT_MASK
, ~(nesdev
->intf_int_req
));
618 list_add_tail(&nesdev
->list
, &nes_dev_list
);
620 /* Request an interrupt line for the driver */
621 ret
= request_irq(pcidev
->irq
, nes_interrupt
, IRQF_SHARED
, DRV_NAME
, nesdev
);
623 printk(KERN_ERR PFX
"%s: requested IRQ %u is busy\n",
624 pci_name(pcidev
), pcidev
->irq
);
628 nes_write32(nesdev
->regs
+NES_INT_MASK
, ~nesdev
->int_req
);
630 if (nes_notifiers_registered
== 0) {
631 register_inetaddr_notifier(&nes_inetaddr_notifier
);
632 register_netevent_notifier(&nes_net_notifier
);
634 nes_notifiers_registered
++;
636 /* Initialize network devices */
637 if ((netdev
= nes_netdev_init(nesdev
, mmio_regs
)) == NULL
) {
641 /* Register network device */
642 ret
= register_netdev(netdev
);
644 printk(KERN_ERR PFX
"Unable to register netdev, ret = %d\n", ret
);
645 nes_netdev_destroy(netdev
);
649 nes_print_macaddr(netdev
);
650 /* create a CM core for this netdev */
651 nesvnic
= netdev_priv(netdev
);
653 nesdev
->netdev_count
++;
654 nesdev
->nesadapter
->netdev_count
++;
657 printk(KERN_ERR PFX
"%s: NetEffect RNIC driver successfully loaded.\n",
662 printk(KERN_ERR PFX
"bail7\n");
663 while (nesdev
->netdev_count
> 0) {
664 nesdev
->netdev_count
--;
665 nesdev
->nesadapter
->netdev_count
--;
667 unregister_netdev(nesdev
->netdev
[nesdev
->netdev_count
]);
668 nes_netdev_destroy(nesdev
->netdev
[nesdev
->netdev_count
]);
671 nes_debug(NES_DBG_INIT
, "netdev_count=%d, nesadapter->netdev_count=%d\n",
672 nesdev
->netdev_count
, nesdev
->nesadapter
->netdev_count
);
674 nes_notifiers_registered
--;
675 if (nes_notifiers_registered
== 0) {
676 unregister_netevent_notifier(&nes_net_notifier
);
677 unregister_inetaddr_notifier(&nes_inetaddr_notifier
);
680 list_del(&nesdev
->list
);
681 nes_destroy_cqp(nesdev
);
684 printk(KERN_ERR PFX
"bail65\n");
685 free_irq(pcidev
->irq
, nesdev
);
686 if (nesdev
->msi_enabled
) {
687 pci_disable_msi(pcidev
);
690 printk(KERN_ERR PFX
"bail6\n");
691 tasklet_kill(&nesdev
->dpc_tasklet
);
692 /* Deallocate the Adapter Structure */
693 nes_destroy_adapter(nesdev
->nesadapter
);
696 printk(KERN_ERR PFX
"bail5\n");
697 iounmap(nesdev
->regs
);
700 printk(KERN_ERR PFX
"bail3\n");
704 pci_release_regions(pcidev
);
707 pci_disable_device(pcidev
);
715 * nes_remove - unload from kernel
717 static void __devexit
nes_remove(struct pci_dev
*pcidev
)
719 struct nes_device
*nesdev
= pci_get_drvdata(pcidev
);
720 struct net_device
*netdev
;
721 int netdev_index
= 0;
723 if (nesdev
->netdev_count
) {
724 netdev
= nesdev
->netdev
[netdev_index
];
726 netif_stop_queue(netdev
);
727 unregister_netdev(netdev
);
728 nes_netdev_destroy(netdev
);
730 nesdev
->netdev
[netdev_index
] = NULL
;
731 nesdev
->netdev_count
--;
732 nesdev
->nesadapter
->netdev_count
--;
736 nes_notifiers_registered
--;
737 if (nes_notifiers_registered
== 0) {
738 unregister_netevent_notifier(&nes_net_notifier
);
739 unregister_inetaddr_notifier(&nes_inetaddr_notifier
);
742 list_del(&nesdev
->list
);
743 nes_destroy_cqp(nesdev
);
745 free_irq(pcidev
->irq
, nesdev
);
746 tasklet_kill(&nesdev
->dpc_tasklet
);
748 /* Deallocate the Adapter Structure */
749 nes_destroy_adapter(nesdev
->nesadapter
);
751 if (nesdev
->msi_enabled
) {
752 pci_disable_msi(pcidev
);
755 iounmap(nesdev
->regs
);
758 /* nes_debug(NES_DBG_SHUTDOWN, "calling pci_release_regions.\n"); */
759 pci_release_regions(pcidev
);
760 pci_disable_device(pcidev
);
761 pci_set_drvdata(pcidev
, NULL
);
765 static struct pci_driver nes_pci_driver
= {
767 .id_table
= nes_pci_table
,
769 .remove
= __devexit_p(nes_remove
),
772 static ssize_t
nes_show_adapter(struct device_driver
*ddp
, char *buf
)
774 unsigned int devfn
= 0xffffffff;
775 unsigned char bus_number
= 0xff;
777 struct nes_device
*nesdev
;
779 list_for_each_entry(nesdev
, &nes_dev_list
, list
) {
780 if (i
== ee_flsh_adapter
) {
781 devfn
= nesdev
->nesadapter
->devfn
;
782 bus_number
= nesdev
->nesadapter
->bus_number
;
788 return snprintf(buf
, PAGE_SIZE
, "%x:%x", bus_number
, devfn
);
791 static ssize_t
nes_store_adapter(struct device_driver
*ddp
,
792 const char *buf
, size_t count
)
794 char *p
= (char *)buf
;
796 ee_flsh_adapter
= simple_strtoul(p
, &p
, 10);
797 return strnlen(buf
, count
);
800 static ssize_t
nes_show_ee_cmd(struct device_driver
*ddp
, char *buf
)
802 u32 eeprom_cmd
= 0xdead;
804 struct nes_device
*nesdev
;
806 list_for_each_entry(nesdev
, &nes_dev_list
, list
) {
807 if (i
== ee_flsh_adapter
) {
808 eeprom_cmd
= nes_read32(nesdev
->regs
+ NES_EEPROM_COMMAND
);
813 return snprintf(buf
, PAGE_SIZE
, "0x%x\n", eeprom_cmd
);
816 static ssize_t
nes_store_ee_cmd(struct device_driver
*ddp
,
817 const char *buf
, size_t count
)
819 char *p
= (char *)buf
;
822 struct nes_device
*nesdev
;
824 if (p
[1] == 'x' || p
[1] == 'X' || p
[0] == 'x' || p
[0] == 'X') {
825 val
= simple_strtoul(p
, &p
, 16);
826 list_for_each_entry(nesdev
, &nes_dev_list
, list
) {
827 if (i
== ee_flsh_adapter
) {
828 nes_write32(nesdev
->regs
+ NES_EEPROM_COMMAND
, val
);
834 return strnlen(buf
, count
);
837 static ssize_t
nes_show_ee_data(struct device_driver
*ddp
, char *buf
)
839 u32 eeprom_data
= 0xdead;
841 struct nes_device
*nesdev
;
843 list_for_each_entry(nesdev
, &nes_dev_list
, list
) {
844 if (i
== ee_flsh_adapter
) {
845 eeprom_data
= nes_read32(nesdev
->regs
+ NES_EEPROM_DATA
);
851 return snprintf(buf
, PAGE_SIZE
, "0x%x\n", eeprom_data
);
854 static ssize_t
nes_store_ee_data(struct device_driver
*ddp
,
855 const char *buf
, size_t count
)
857 char *p
= (char *)buf
;
860 struct nes_device
*nesdev
;
862 if (p
[1] == 'x' || p
[1] == 'X' || p
[0] == 'x' || p
[0] == 'X') {
863 val
= simple_strtoul(p
, &p
, 16);
864 list_for_each_entry(nesdev
, &nes_dev_list
, list
) {
865 if (i
== ee_flsh_adapter
) {
866 nes_write32(nesdev
->regs
+ NES_EEPROM_DATA
, val
);
872 return strnlen(buf
, count
);
875 static ssize_t
nes_show_flash_cmd(struct device_driver
*ddp
, char *buf
)
877 u32 flash_cmd
= 0xdead;
879 struct nes_device
*nesdev
;
881 list_for_each_entry(nesdev
, &nes_dev_list
, list
) {
882 if (i
== ee_flsh_adapter
) {
883 flash_cmd
= nes_read32(nesdev
->regs
+ NES_FLASH_COMMAND
);
889 return snprintf(buf
, PAGE_SIZE
, "0x%x\n", flash_cmd
);
892 static ssize_t
nes_store_flash_cmd(struct device_driver
*ddp
,
893 const char *buf
, size_t count
)
895 char *p
= (char *)buf
;
898 struct nes_device
*nesdev
;
900 if (p
[1] == 'x' || p
[1] == 'X' || p
[0] == 'x' || p
[0] == 'X') {
901 val
= simple_strtoul(p
, &p
, 16);
902 list_for_each_entry(nesdev
, &nes_dev_list
, list
) {
903 if (i
== ee_flsh_adapter
) {
904 nes_write32(nesdev
->regs
+ NES_FLASH_COMMAND
, val
);
910 return strnlen(buf
, count
);
913 static ssize_t
nes_show_flash_data(struct device_driver
*ddp
, char *buf
)
915 u32 flash_data
= 0xdead;
917 struct nes_device
*nesdev
;
919 list_for_each_entry(nesdev
, &nes_dev_list
, list
) {
920 if (i
== ee_flsh_adapter
) {
921 flash_data
= nes_read32(nesdev
->regs
+ NES_FLASH_DATA
);
927 return snprintf(buf
, PAGE_SIZE
, "0x%x\n", flash_data
);
930 static ssize_t
nes_store_flash_data(struct device_driver
*ddp
,
931 const char *buf
, size_t count
)
933 char *p
= (char *)buf
;
936 struct nes_device
*nesdev
;
938 if (p
[1] == 'x' || p
[1] == 'X' || p
[0] == 'x' || p
[0] == 'X') {
939 val
= simple_strtoul(p
, &p
, 16);
940 list_for_each_entry(nesdev
, &nes_dev_list
, list
) {
941 if (i
== ee_flsh_adapter
) {
942 nes_write32(nesdev
->regs
+ NES_FLASH_DATA
, val
);
948 return strnlen(buf
, count
);
951 static ssize_t
nes_show_nonidx_addr(struct device_driver
*ddp
, char *buf
)
953 return snprintf(buf
, PAGE_SIZE
, "0x%x\n", sysfs_nonidx_addr
);
956 static ssize_t
nes_store_nonidx_addr(struct device_driver
*ddp
,
957 const char *buf
, size_t count
)
959 char *p
= (char *)buf
;
961 if (p
[1] == 'x' || p
[1] == 'X' || p
[0] == 'x' || p
[0] == 'X')
962 sysfs_nonidx_addr
= simple_strtoul(p
, &p
, 16);
964 return strnlen(buf
, count
);
967 static ssize_t
nes_show_nonidx_data(struct device_driver
*ddp
, char *buf
)
969 u32 nonidx_data
= 0xdead;
971 struct nes_device
*nesdev
;
973 list_for_each_entry(nesdev
, &nes_dev_list
, list
) {
974 if (i
== ee_flsh_adapter
) {
975 nonidx_data
= nes_read32(nesdev
->regs
+ sysfs_nonidx_addr
);
981 return snprintf(buf
, PAGE_SIZE
, "0x%x\n", nonidx_data
);
984 static ssize_t
nes_store_nonidx_data(struct device_driver
*ddp
,
985 const char *buf
, size_t count
)
987 char *p
= (char *)buf
;
990 struct nes_device
*nesdev
;
992 if (p
[1] == 'x' || p
[1] == 'X' || p
[0] == 'x' || p
[0] == 'X') {
993 val
= simple_strtoul(p
, &p
, 16);
994 list_for_each_entry(nesdev
, &nes_dev_list
, list
) {
995 if (i
== ee_flsh_adapter
) {
996 nes_write32(nesdev
->regs
+ sysfs_nonidx_addr
, val
);
1002 return strnlen(buf
, count
);
1005 static ssize_t
nes_show_idx_addr(struct device_driver
*ddp
, char *buf
)
1007 return snprintf(buf
, PAGE_SIZE
, "0x%x\n", sysfs_idx_addr
);
1010 static ssize_t
nes_store_idx_addr(struct device_driver
*ddp
,
1011 const char *buf
, size_t count
)
1013 char *p
= (char *)buf
;
1015 if (p
[1] == 'x' || p
[1] == 'X' || p
[0] == 'x' || p
[0] == 'X')
1016 sysfs_idx_addr
= simple_strtoul(p
, &p
, 16);
1018 return strnlen(buf
, count
);
1021 static ssize_t
nes_show_idx_data(struct device_driver
*ddp
, char *buf
)
1023 u32 idx_data
= 0xdead;
1025 struct nes_device
*nesdev
;
1027 list_for_each_entry(nesdev
, &nes_dev_list
, list
) {
1028 if (i
== ee_flsh_adapter
) {
1029 idx_data
= nes_read_indexed(nesdev
, sysfs_idx_addr
);
1035 return snprintf(buf
, PAGE_SIZE
, "0x%x\n", idx_data
);
1038 static ssize_t
nes_store_idx_data(struct device_driver
*ddp
,
1039 const char *buf
, size_t count
)
1041 char *p
= (char *)buf
;
1044 struct nes_device
*nesdev
;
1046 if (p
[1] == 'x' || p
[1] == 'X' || p
[0] == 'x' || p
[0] == 'X') {
1047 val
= simple_strtoul(p
, &p
, 16);
1048 list_for_each_entry(nesdev
, &nes_dev_list
, list
) {
1049 if (i
== ee_flsh_adapter
) {
1050 nes_write_indexed(nesdev
, sysfs_idx_addr
, val
);
1056 return strnlen(buf
, count
);
1059 static DRIVER_ATTR(adapter
, S_IRUSR
| S_IWUSR
,
1060 nes_show_adapter
, nes_store_adapter
);
1061 static DRIVER_ATTR(eeprom_cmd
, S_IRUSR
| S_IWUSR
,
1062 nes_show_ee_cmd
, nes_store_ee_cmd
);
1063 static DRIVER_ATTR(eeprom_data
, S_IRUSR
| S_IWUSR
,
1064 nes_show_ee_data
, nes_store_ee_data
);
1065 static DRIVER_ATTR(flash_cmd
, S_IRUSR
| S_IWUSR
,
1066 nes_show_flash_cmd
, nes_store_flash_cmd
);
1067 static DRIVER_ATTR(flash_data
, S_IRUSR
| S_IWUSR
,
1068 nes_show_flash_data
, nes_store_flash_data
);
1069 static DRIVER_ATTR(nonidx_addr
, S_IRUSR
| S_IWUSR
,
1070 nes_show_nonidx_addr
, nes_store_nonidx_addr
);
1071 static DRIVER_ATTR(nonidx_data
, S_IRUSR
| S_IWUSR
,
1072 nes_show_nonidx_data
, nes_store_nonidx_data
);
1073 static DRIVER_ATTR(idx_addr
, S_IRUSR
| S_IWUSR
,
1074 nes_show_idx_addr
, nes_store_idx_addr
);
1075 static DRIVER_ATTR(idx_data
, S_IRUSR
| S_IWUSR
,
1076 nes_show_idx_data
, nes_store_idx_data
);
1078 static int nes_create_driver_sysfs(struct pci_driver
*drv
)
1081 error
= driver_create_file(&drv
->driver
, &driver_attr_adapter
);
1082 error
|= driver_create_file(&drv
->driver
, &driver_attr_eeprom_cmd
);
1083 error
|= driver_create_file(&drv
->driver
, &driver_attr_eeprom_data
);
1084 error
|= driver_create_file(&drv
->driver
, &driver_attr_flash_cmd
);
1085 error
|= driver_create_file(&drv
->driver
, &driver_attr_flash_data
);
1086 error
|= driver_create_file(&drv
->driver
, &driver_attr_nonidx_addr
);
1087 error
|= driver_create_file(&drv
->driver
, &driver_attr_nonidx_data
);
1088 error
|= driver_create_file(&drv
->driver
, &driver_attr_idx_addr
);
1089 error
|= driver_create_file(&drv
->driver
, &driver_attr_idx_data
);
1093 static void nes_remove_driver_sysfs(struct pci_driver
*drv
)
1095 driver_remove_file(&drv
->driver
, &driver_attr_adapter
);
1096 driver_remove_file(&drv
->driver
, &driver_attr_eeprom_cmd
);
1097 driver_remove_file(&drv
->driver
, &driver_attr_eeprom_data
);
1098 driver_remove_file(&drv
->driver
, &driver_attr_flash_cmd
);
1099 driver_remove_file(&drv
->driver
, &driver_attr_flash_data
);
1100 driver_remove_file(&drv
->driver
, &driver_attr_nonidx_addr
);
1101 driver_remove_file(&drv
->driver
, &driver_attr_nonidx_data
);
1102 driver_remove_file(&drv
->driver
, &driver_attr_idx_addr
);
1103 driver_remove_file(&drv
->driver
, &driver_attr_idx_data
);
1107 * nes_init_module - module initialization entry point
1109 static int __init
nes_init_module(void)
1114 retval
= nes_cm_start();
1116 printk(KERN_ERR PFX
"Unable to start NetEffect iWARP CM.\n");
1119 retval
= pci_register_driver(&nes_pci_driver
);
1121 retval1
= nes_create_driver_sysfs(&nes_pci_driver
);
1123 printk(KERN_ERR PFX
"Unable to create NetEffect sys files.\n");
1130 * nes_exit_module - module unload entry point
1132 static void __exit
nes_exit_module(void)
1135 nes_remove_driver_sysfs(&nes_pci_driver
);
1137 pci_unregister_driver(&nes_pci_driver
);
1141 module_init(nes_init_module
);
1142 module_exit(nes_exit_module
);