2 * Copyright (c) 2006 - 2009 Intel Corporation. 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>
47 #include <linux/slab.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>
58 #include <net/netevent.h>
59 #include <net/neighbour.h>
60 #include <linux/route.h>
61 #include <net/ip_fib.h>
63 MODULE_AUTHOR("NetEffect");
64 MODULE_DESCRIPTION("NetEffect RNIC Low-level iWARP Driver");
65 MODULE_LICENSE("Dual BSD/GPL");
66 MODULE_VERSION(DRV_VERSION
);
69 int interrupt_mod_interval
= 0;
72 /* Interoperability */
74 module_param(mpa_version
, int, 0644);
75 MODULE_PARM_DESC(mpa_version
, "MPA version to be used int MPA Req/Resp (0 or 1)");
77 /* Interoperability */
78 int disable_mpa_crc
= 0;
79 module_param(disable_mpa_crc
, int, 0644);
80 MODULE_PARM_DESC(disable_mpa_crc
, "Disable checking of MPA CRC");
82 unsigned int send_first
= 0;
83 module_param(send_first
, int, 0644);
84 MODULE_PARM_DESC(send_first
, "Send RDMA Message First on Active Connection");
87 unsigned int nes_drv_opt
= 0;
88 module_param(nes_drv_opt
, int, 0644);
89 MODULE_PARM_DESC(nes_drv_opt
, "Driver option parameters");
91 unsigned int nes_debug_level
= 0;
92 module_param_named(debug_level
, nes_debug_level
, uint
, 0644);
93 MODULE_PARM_DESC(debug_level
, "Enable debug output level");
95 unsigned int wqm_quanta
= 0x10000;
96 module_param(wqm_quanta
, int, 0644);
97 MODULE_PARM_DESC(wqm_quanta
, "WQM quanta");
99 static unsigned int limit_maxrdreqsz
;
100 module_param(limit_maxrdreqsz
, bool, 0644);
101 MODULE_PARM_DESC(limit_maxrdreqsz
, "Limit max read request size to 256 Bytes");
103 LIST_HEAD(nes_adapter_list
);
104 static LIST_HEAD(nes_dev_list
);
106 atomic_t qps_destroyed
;
108 static unsigned int ee_flsh_adapter
;
109 static unsigned int sysfs_nonidx_addr
;
110 static unsigned int sysfs_idx_addr
;
112 static struct pci_device_id nes_pci_table
[] = {
113 {PCI_VENDOR_ID_NETEFFECT
, PCI_DEVICE_ID_NETEFFECT_NE020
, PCI_ANY_ID
, PCI_ANY_ID
},
114 {PCI_VENDOR_ID_NETEFFECT
, PCI_DEVICE_ID_NETEFFECT_NE020_KR
, PCI_ANY_ID
, PCI_ANY_ID
},
118 MODULE_DEVICE_TABLE(pci
, nes_pci_table
);
120 static int nes_inetaddr_event(struct notifier_block
*, unsigned long, void *);
121 static int nes_net_event(struct notifier_block
*, unsigned long, void *);
122 static int nes_notifiers_registered
;
125 static struct notifier_block nes_inetaddr_notifier
= {
126 .notifier_call
= nes_inetaddr_event
129 static struct notifier_block nes_net_notifier
= {
130 .notifier_call
= nes_net_event
139 static int nes_inetaddr_event(struct notifier_block
*notifier
,
140 unsigned long event
, void *ptr
)
142 struct in_ifaddr
*ifa
= ptr
;
143 struct net_device
*event_netdev
= ifa
->ifa_dev
->dev
;
144 struct nes_device
*nesdev
;
145 struct net_device
*netdev
;
146 struct nes_vnic
*nesvnic
;
148 nes_debug(NES_DBG_NETDEV
, "nes_inetaddr_event: ip address %pI4, netmask %pI4.\n",
149 &ifa
->ifa_address
, &ifa
->ifa_mask
);
150 list_for_each_entry(nesdev
, &nes_dev_list
, list
) {
151 nes_debug(NES_DBG_NETDEV
, "Nesdev list entry = 0x%p. (%s)\n",
152 nesdev
, nesdev
->netdev
[0]->name
);
153 netdev
= nesdev
->netdev
[0];
154 nesvnic
= netdev_priv(netdev
);
155 if (netdev
== event_netdev
) {
156 if (nesvnic
->rdma_enabled
== 0) {
157 nes_debug(NES_DBG_NETDEV
, "Returning without processing event for %s since"
158 " RDMA is not enabled.\n",
162 /* we have ifa->ifa_address/mask here if we need it */
165 nes_debug(NES_DBG_NETDEV
, "event:DOWN\n");
166 nes_write_indexed(nesdev
,
167 NES_IDX_DST_IP_ADDR
+(0x10*PCI_FUNC(nesdev
->pcidev
->devfn
)), 0);
169 nes_manage_arp_cache(netdev
, netdev
->dev_addr
,
170 ntohl(nesvnic
->local_ipaddr
), NES_ARP_DELETE
);
171 nesvnic
->local_ipaddr
= 0;
175 nes_debug(NES_DBG_NETDEV
, "event:UP\n");
177 if (nesvnic
->local_ipaddr
!= 0) {
178 nes_debug(NES_DBG_NETDEV
, "Interface already has local_ipaddr\n");
181 /* Add the address to the IP table */
182 nesvnic
->local_ipaddr
= ifa
->ifa_address
;
184 nes_write_indexed(nesdev
,
185 NES_IDX_DST_IP_ADDR
+(0x10*PCI_FUNC(nesdev
->pcidev
->devfn
)),
186 ntohl(ifa
->ifa_address
));
187 nes_manage_arp_cache(netdev
, netdev
->dev_addr
,
188 ntohl(nesvnic
->local_ipaddr
), NES_ARP_ADD
);
204 static int nes_net_event(struct notifier_block
*notifier
,
205 unsigned long event
, void *ptr
)
207 struct neighbour
*neigh
= ptr
;
208 struct nes_device
*nesdev
;
209 struct net_device
*netdev
;
210 struct nes_vnic
*nesvnic
;
213 case NETEVENT_NEIGH_UPDATE
:
214 list_for_each_entry(nesdev
, &nes_dev_list
, list
) {
215 /* nes_debug(NES_DBG_NETDEV, "Nesdev list entry = 0x%p.\n", nesdev); */
216 netdev
= nesdev
->netdev
[0];
217 nesvnic
= netdev_priv(netdev
);
218 if (netdev
== neigh
->dev
) {
219 if (nesvnic
->rdma_enabled
== 0) {
220 nes_debug(NES_DBG_NETDEV
, "Skipping device %s since no RDMA\n",
223 if (neigh
->nud_state
& NUD_VALID
) {
224 nes_manage_arp_cache(neigh
->dev
, neigh
->ha
,
225 ntohl(*(__be32
*)neigh
->primary_key
), NES_ARP_ADD
);
227 nes_manage_arp_cache(neigh
->dev
, neigh
->ha
,
228 ntohl(*(__be32
*)neigh
->primary_key
), NES_ARP_DELETE
);
236 nes_debug(NES_DBG_NETDEV
, "NETEVENT_ %lu undefined\n", event
);
247 void nes_add_ref(struct ib_qp
*ibqp
)
249 struct nes_qp
*nesqp
;
251 nesqp
= to_nesqp(ibqp
);
252 nes_debug(NES_DBG_QP
, "Bumping refcount for QP%u. Pre-inc value = %u\n",
253 ibqp
->qp_num
, atomic_read(&nesqp
->refcount
));
254 atomic_inc(&nesqp
->refcount
);
257 static void nes_cqp_rem_ref_callback(struct nes_device
*nesdev
, struct nes_cqp_request
*cqp_request
)
260 struct nes_qp
*nesqp
= cqp_request
->cqp_callback_pointer
;
261 struct nes_adapter
*nesadapter
= nesdev
->nesadapter
;
264 atomic_inc(&qps_destroyed
);
266 /* Free the control structures */
268 qp_id
= nesqp
->hwqp
.qp_id
;
269 if (nesqp
->pbl_vbase
) {
270 pci_free_consistent(nesdev
->pcidev
, nesqp
->qp_mem_size
,
271 nesqp
->hwqp
.q2_vbase
, nesqp
->hwqp
.q2_pbase
);
272 spin_lock_irqsave(&nesadapter
->pbl_lock
, flags
);
273 nesadapter
->free_256pbl
++;
274 spin_unlock_irqrestore(&nesadapter
->pbl_lock
, flags
);
275 pci_free_consistent(nesdev
->pcidev
, 256, nesqp
->pbl_vbase
, nesqp
->pbl_pbase
);
276 nesqp
->pbl_vbase
= NULL
;
279 pci_free_consistent(nesdev
->pcidev
, nesqp
->qp_mem_size
,
280 nesqp
->hwqp
.sq_vbase
, nesqp
->hwqp
.sq_pbase
);
282 nes_free_resource(nesadapter
, nesadapter
->allocated_qps
, nesqp
->hwqp
.qp_id
);
284 nesadapter
->qp_table
[nesqp
->hwqp
.qp_id
-NES_FIRST_QPN
] = NULL
;
285 kfree(nesqp
->allocated_buffer
);
292 void nes_rem_ref(struct ib_qp
*ibqp
)
295 struct nes_qp
*nesqp
;
296 struct nes_vnic
*nesvnic
= to_nesvnic(ibqp
->device
);
297 struct nes_device
*nesdev
= nesvnic
->nesdev
;
298 struct nes_hw_cqp_wqe
*cqp_wqe
;
299 struct nes_cqp_request
*cqp_request
;
302 nesqp
= to_nesqp(ibqp
);
304 if (atomic_read(&nesqp
->refcount
) == 0) {
305 printk(KERN_INFO PFX
"%s: Reference count already 0 for QP%d, last aeq = 0x%04X.\n",
306 __func__
, ibqp
->qp_num
, nesqp
->last_aeq
);
310 if (atomic_dec_and_test(&nesqp
->refcount
)) {
312 cqp_request
= nes_get_cqp_request(nesdev
);
313 if (cqp_request
== NULL
) {
314 nes_debug(NES_DBG_QP
, "Failed to get a cqp_request.\n");
317 cqp_request
->waiting
= 0;
318 cqp_request
->callback
= 1;
319 cqp_request
->cqp_callback
= nes_cqp_rem_ref_callback
;
320 cqp_request
->cqp_callback_pointer
= nesqp
;
321 cqp_wqe
= &cqp_request
->cqp_wqe
;
323 nes_fill_init_cqp_wqe(cqp_wqe
, nesdev
);
324 opcode
= NES_CQP_DESTROY_QP
| NES_CQP_QP_TYPE_IWARP
;
326 if (nesqp
->hte_added
) {
327 opcode
|= NES_CQP_QP_DEL_HTE
;
328 nesqp
->hte_added
= 0;
330 set_wqe_32bit_value(cqp_wqe
->wqe_words
, NES_CQP_WQE_OPCODE_IDX
, opcode
);
331 set_wqe_32bit_value(cqp_wqe
->wqe_words
, NES_CQP_WQE_ID_IDX
, nesqp
->hwqp
.qp_id
);
332 u64temp
= (u64
)nesqp
->nesqp_context_pbase
;
333 set_wqe_64bit_value(cqp_wqe
->wqe_words
, NES_CQP_QP_WQE_CONTEXT_LOW_IDX
, u64temp
);
334 nes_post_cqp_request(nesdev
, cqp_request
);
342 struct ib_qp
*nes_get_qp(struct ib_device
*device
, int qpn
)
344 struct nes_vnic
*nesvnic
= to_nesvnic(device
);
345 struct nes_device
*nesdev
= nesvnic
->nesdev
;
346 struct nes_adapter
*nesadapter
= nesdev
->nesadapter
;
348 if ((qpn
< NES_FIRST_QPN
) || (qpn
>= (NES_FIRST_QPN
+ nesadapter
->max_qp
)))
351 return &nesadapter
->qp_table
[qpn
- NES_FIRST_QPN
]->ibqp
;
358 static void nes_print_macaddr(struct net_device
*netdev
)
360 nes_debug(NES_DBG_INIT
, "%s: %pM, IRQ %u\n",
361 netdev
->name
, netdev
->dev_addr
, netdev
->irq
);
365 * nes_interrupt - handle interrupts
367 static irqreturn_t
nes_interrupt(int irq
, void *dev_id
)
369 struct nes_device
*nesdev
= (struct nes_device
*)dev_id
;
377 if (nesdev
->msi_enabled
) {
378 /* No need to read the interrupt pending register if msi is enabled */
381 if (unlikely(nesdev
->nesadapter
->hw_rev
== NE020_REV
)) {
382 /* Master interrupt enable provides synchronization for kicking off bottom half
383 when interrupt sharing is going on */
384 int_mask
= nes_read32(nesdev
->regs
+ NES_INT_MASK
);
385 if (int_mask
& 0x80000000) {
386 /* Check interrupt status to see if this might be ours */
387 int_stat
= nes_read32(nesdev
->regs
+ NES_INT_STAT
);
388 int_req
= nesdev
->int_req
;
389 if (int_stat
&int_req
) {
390 /* if interesting CEQ or AEQ is pending, claim the interrupt */
391 if ((int_stat
&int_req
) & (~(NES_INT_TIMER
|NES_INT_INTF
))) {
394 if (((int_stat
& int_req
) & NES_INT_TIMER
) == NES_INT_TIMER
) {
395 /* Timer might be running but might be for another function */
396 timer_stat
= nes_read32(nesdev
->regs
+ NES_TIMER_STAT
);
397 if ((timer_stat
& nesdev
->timer_int_req
) != 0) {
401 if ((((int_stat
& int_req
) & NES_INT_INTF
) == NES_INT_INTF
) &&
403 intf_int_stat
= nes_read32(nesdev
->regs
+NES_INTF_INT_STAT
);
404 if ((intf_int_stat
& nesdev
->intf_int_req
) != 0) {
410 nes_write32(nesdev
->regs
+NES_INT_MASK
, int_mask
& (~0x80000000));
411 int_mask
= nes_read32(nesdev
->regs
+NES_INT_MASK
);
412 /* Save off the status to save an additional read */
413 nesdev
->int_stat
= int_stat
;
414 nesdev
->napi_isr_ran
= 1;
419 handled
= nes_read32(nesdev
->regs
+NES_INT_PENDING
);
425 if (nes_napi_isr(nesdev
) == 0) {
426 tasklet_schedule(&nesdev
->dpc_tasklet
);
437 * nes_probe - Device initialization
439 static int __devinit
nes_probe(struct pci_dev
*pcidev
, const struct pci_device_id
*ent
)
441 struct net_device
*netdev
= NULL
;
442 struct nes_device
*nesdev
= NULL
;
444 struct nes_vnic
*nesvnic
= NULL
;
445 void __iomem
*mmio_regs
= NULL
;
448 assert(pcidev
!= NULL
);
451 printk(KERN_INFO PFX
"NetEffect RNIC driver v%s loading. (%s)\n",
452 DRV_VERSION
, pci_name(pcidev
));
454 ret
= pci_enable_device(pcidev
);
456 printk(KERN_ERR PFX
"Unable to enable PCI device. (%s)\n", pci_name(pcidev
));
460 nes_debug(NES_DBG_INIT
, "BAR0 (@0x%08lX) size = 0x%lX bytes\n",
461 (long unsigned int)pci_resource_start(pcidev
, BAR_0
),
462 (long unsigned int)pci_resource_len(pcidev
, BAR_0
));
463 nes_debug(NES_DBG_INIT
, "BAR1 (@0x%08lX) size = 0x%lX bytes\n",
464 (long unsigned int)pci_resource_start(pcidev
, BAR_1
),
465 (long unsigned int)pci_resource_len(pcidev
, BAR_1
));
467 /* Make sure PCI base addr are MMIO */
468 if (!(pci_resource_flags(pcidev
, BAR_0
) & IORESOURCE_MEM
) ||
469 !(pci_resource_flags(pcidev
, BAR_1
) & IORESOURCE_MEM
)) {
470 printk(KERN_ERR PFX
"PCI regions not an MMIO resource\n");
475 /* Reserve PCI I/O and memory resources */
476 ret
= pci_request_regions(pcidev
, DRV_NAME
);
478 printk(KERN_ERR PFX
"Unable to request regions. (%s)\n", pci_name(pcidev
));
482 if ((sizeof(dma_addr_t
) > 4)) {
483 ret
= pci_set_dma_mask(pcidev
, DMA_BIT_MASK(64));
485 printk(KERN_ERR PFX
"64b DMA mask configuration failed\n");
488 ret
= pci_set_consistent_dma_mask(pcidev
, DMA_BIT_MASK(64));
490 printk(KERN_ERR PFX
"64b DMA consistent mask configuration failed\n");
494 ret
= pci_set_dma_mask(pcidev
, DMA_BIT_MASK(32));
496 printk(KERN_ERR PFX
"32b DMA mask configuration failed\n");
499 ret
= pci_set_consistent_dma_mask(pcidev
, DMA_BIT_MASK(32));
501 printk(KERN_ERR PFX
"32b DMA consistent mask configuration failed\n");
506 pci_set_master(pcidev
);
508 /* Allocate hardware structure */
509 nesdev
= kzalloc(sizeof(struct nes_device
), GFP_KERNEL
);
511 printk(KERN_ERR PFX
"%s: Unable to alloc hardware struct\n", pci_name(pcidev
));
516 nes_debug(NES_DBG_INIT
, "Allocated nes device at %p\n", nesdev
);
517 nesdev
->pcidev
= pcidev
;
518 pci_set_drvdata(pcidev
, nesdev
);
520 pci_read_config_byte(pcidev
, 0x0008, &hw_rev
);
521 nes_debug(NES_DBG_INIT
, "hw_rev=%u\n", hw_rev
);
523 spin_lock_init(&nesdev
->indexed_regs_lock
);
525 /* Remap the PCI registers in adapter BAR0 to kernel VA space */
526 mmio_regs
= ioremap_nocache(pci_resource_start(pcidev
, BAR_0
),
527 pci_resource_len(pcidev
, BAR_0
));
528 if (mmio_regs
== NULL
) {
529 printk(KERN_ERR PFX
"Unable to remap BAR0\n");
533 nesdev
->regs
= mmio_regs
;
534 nesdev
->index_reg
= 0x50 + (PCI_FUNC(pcidev
->devfn
)*8) + mmio_regs
;
536 /* Ensure interrupts are disabled */
537 nes_write32(nesdev
->regs
+NES_INT_MASK
, 0x7fffffff);
539 if (nes_drv_opt
& NES_DRV_OPT_ENABLE_MSI
) {
540 if (!pci_enable_msi(nesdev
->pcidev
)) {
541 nesdev
->msi_enabled
= 1;
542 nes_debug(NES_DBG_INIT
, "MSI is enabled for device %s\n",
545 nes_debug(NES_DBG_INIT
, "MSI is disabled by linux for device %s\n",
549 nes_debug(NES_DBG_INIT
, "MSI not requested due to driver options for device %s\n",
553 nesdev
->csr_start
= pci_resource_start(nesdev
->pcidev
, BAR_0
);
554 nesdev
->doorbell_region
= pci_resource_start(nesdev
->pcidev
, BAR_1
);
556 /* Init the adapter */
557 nesdev
->nesadapter
= nes_init_adapter(nesdev
, hw_rev
);
558 if (!nesdev
->nesadapter
) {
559 printk(KERN_ERR PFX
"Unable to initialize adapter.\n");
563 nesdev
->nesadapter
->et_rx_coalesce_usecs_irq
= interrupt_mod_interval
;
564 nesdev
->nesadapter
->wqm_quanta
= wqm_quanta
;
566 /* nesdev->base_doorbell_index =
567 nesdev->nesadapter->pd_config_base[PCI_FUNC(nesdev->pcidev->devfn)]; */
568 nesdev
->base_doorbell_index
= 1;
569 nesdev
->doorbell_start
= nesdev
->nesadapter
->doorbell_start
;
570 if (nesdev
->nesadapter
->phy_type
[0] == NES_PHY_TYPE_PUMA_1G
) {
571 switch (PCI_FUNC(nesdev
->pcidev
->devfn
) %
572 nesdev
->nesadapter
->port_count
) {
574 nesdev
->mac_index
= 2;
577 nesdev
->mac_index
= 1;
580 nesdev
->mac_index
= 3;
584 nesdev
->mac_index
= 0;
587 nesdev
->mac_index
= PCI_FUNC(nesdev
->pcidev
->devfn
) %
588 nesdev
->nesadapter
->port_count
;
591 if ((limit_maxrdreqsz
||
592 ((nesdev
->nesadapter
->phy_type
[0] == NES_PHY_TYPE_GLADIUS
) &&
593 (hw_rev
== NE020_REV1
))) &&
594 (pcie_get_readrq(pcidev
) > 256)) {
595 if (pcie_set_readrq(pcidev
, 256))
596 printk(KERN_ERR PFX
"Unable to set max read request"
599 nes_debug(NES_DBG_INIT
, "Max read request size set"
603 tasklet_init(&nesdev
->dpc_tasklet
, nes_dpc
, (unsigned long)nesdev
);
605 /* bring up the Control QP */
606 if (nes_init_cqp(nesdev
)) {
612 nes_write32(nesdev
->regs
+NES_CQE_ALLOC
, NES_CQE_ALLOC_NOTIFY_NEXT
|
613 PCI_FUNC(nesdev
->pcidev
->devfn
));
614 nes_read32(nesdev
->regs
+NES_CQE_ALLOC
);
616 /* Enable the interrupts */
617 nesdev
->int_req
= (0x101 << PCI_FUNC(nesdev
->pcidev
->devfn
)) |
618 (1 << (PCI_FUNC(nesdev
->pcidev
->devfn
)+16));
619 if (PCI_FUNC(nesdev
->pcidev
->devfn
) < 4) {
620 nesdev
->int_req
|= (1 << (PCI_FUNC(nesdev
->mac_index
)+24));
623 /* TODO: This really should be the first driver to load, not function 0 */
624 if (PCI_FUNC(nesdev
->pcidev
->devfn
) == 0) {
625 /* pick up PCI and critical errors if the first driver to load */
626 nesdev
->intf_int_req
= NES_INTF_INT_PCIERR
| NES_INTF_INT_CRITERR
;
627 nesdev
->int_req
|= NES_INT_INTF
;
629 nesdev
->intf_int_req
= 0;
631 nesdev
->intf_int_req
|= (1 << (PCI_FUNC(nesdev
->pcidev
->devfn
)+16));
632 nes_write_indexed(nesdev
, NES_IDX_DEBUG_ERROR_MASKS0
, 0);
633 nes_write_indexed(nesdev
, NES_IDX_DEBUG_ERROR_MASKS1
, 0);
634 nes_write_indexed(nesdev
, NES_IDX_DEBUG_ERROR_MASKS2
, 0x00001265);
635 nes_write_indexed(nesdev
, NES_IDX_DEBUG_ERROR_MASKS4
, 0x18021804);
637 nes_write_indexed(nesdev
, NES_IDX_DEBUG_ERROR_MASKS3
, 0x17801790);
639 /* deal with both periodic and one_shot */
640 nesdev
->timer_int_req
= 0x101 << PCI_FUNC(nesdev
->pcidev
->devfn
);
641 nesdev
->nesadapter
->timer_int_req
|= nesdev
->timer_int_req
;
642 nes_debug(NES_DBG_INIT
, "setting int_req for function %u, nesdev = 0x%04X, adapter = 0x%04X\n",
643 PCI_FUNC(nesdev
->pcidev
->devfn
),
644 nesdev
->timer_int_req
, nesdev
->nesadapter
->timer_int_req
);
646 nes_write32(nesdev
->regs
+NES_INTF_INT_MASK
, ~(nesdev
->intf_int_req
));
648 list_add_tail(&nesdev
->list
, &nes_dev_list
);
650 /* Request an interrupt line for the driver */
651 ret
= request_irq(pcidev
->irq
, nes_interrupt
, IRQF_SHARED
, DRV_NAME
, nesdev
);
653 printk(KERN_ERR PFX
"%s: requested IRQ %u is busy\n",
654 pci_name(pcidev
), pcidev
->irq
);
658 nes_write32(nesdev
->regs
+NES_INT_MASK
, ~nesdev
->int_req
);
660 if (nes_notifiers_registered
== 0) {
661 register_inetaddr_notifier(&nes_inetaddr_notifier
);
662 register_netevent_notifier(&nes_net_notifier
);
664 nes_notifiers_registered
++;
666 /* Initialize network devices */
667 if ((netdev
= nes_netdev_init(nesdev
, mmio_regs
)) == NULL
) {
671 /* Register network device */
672 ret
= register_netdev(netdev
);
674 printk(KERN_ERR PFX
"Unable to register netdev, ret = %d\n", ret
);
675 nes_netdev_destroy(netdev
);
679 nes_print_macaddr(netdev
);
680 /* create a CM core for this netdev */
681 nesvnic
= netdev_priv(netdev
);
683 nesdev
->netdev_count
++;
684 nesdev
->nesadapter
->netdev_count
++;
687 printk(KERN_ERR PFX
"%s: NetEffect RNIC driver successfully loaded.\n",
692 printk(KERN_ERR PFX
"bail7\n");
693 while (nesdev
->netdev_count
> 0) {
694 nesdev
->netdev_count
--;
695 nesdev
->nesadapter
->netdev_count
--;
697 unregister_netdev(nesdev
->netdev
[nesdev
->netdev_count
]);
698 nes_netdev_destroy(nesdev
->netdev
[nesdev
->netdev_count
]);
701 nes_debug(NES_DBG_INIT
, "netdev_count=%d, nesadapter->netdev_count=%d\n",
702 nesdev
->netdev_count
, nesdev
->nesadapter
->netdev_count
);
704 nes_notifiers_registered
--;
705 if (nes_notifiers_registered
== 0) {
706 unregister_netevent_notifier(&nes_net_notifier
);
707 unregister_inetaddr_notifier(&nes_inetaddr_notifier
);
710 list_del(&nesdev
->list
);
711 nes_destroy_cqp(nesdev
);
714 printk(KERN_ERR PFX
"bail65\n");
715 free_irq(pcidev
->irq
, nesdev
);
716 if (nesdev
->msi_enabled
) {
717 pci_disable_msi(pcidev
);
720 printk(KERN_ERR PFX
"bail6\n");
721 tasklet_kill(&nesdev
->dpc_tasklet
);
722 /* Deallocate the Adapter Structure */
723 nes_destroy_adapter(nesdev
->nesadapter
);
726 printk(KERN_ERR PFX
"bail5\n");
727 iounmap(nesdev
->regs
);
730 printk(KERN_ERR PFX
"bail3\n");
734 pci_release_regions(pcidev
);
737 pci_disable_device(pcidev
);
745 * nes_remove - unload from kernel
747 static void __devexit
nes_remove(struct pci_dev
*pcidev
)
749 struct nes_device
*nesdev
= pci_get_drvdata(pcidev
);
750 struct net_device
*netdev
;
751 int netdev_index
= 0;
753 if (nesdev
->netdev_count
) {
754 netdev
= nesdev
->netdev
[netdev_index
];
756 netif_stop_queue(netdev
);
757 unregister_netdev(netdev
);
758 nes_netdev_destroy(netdev
);
760 nesdev
->netdev
[netdev_index
] = NULL
;
761 nesdev
->netdev_count
--;
762 nesdev
->nesadapter
->netdev_count
--;
766 nes_notifiers_registered
--;
767 if (nes_notifiers_registered
== 0) {
768 unregister_netevent_notifier(&nes_net_notifier
);
769 unregister_inetaddr_notifier(&nes_inetaddr_notifier
);
772 list_del(&nesdev
->list
);
773 nes_destroy_cqp(nesdev
);
775 free_irq(pcidev
->irq
, nesdev
);
776 tasklet_kill(&nesdev
->dpc_tasklet
);
778 /* Deallocate the Adapter Structure */
779 nes_destroy_adapter(nesdev
->nesadapter
);
781 if (nesdev
->msi_enabled
) {
782 pci_disable_msi(pcidev
);
785 iounmap(nesdev
->regs
);
788 /* nes_debug(NES_DBG_SHUTDOWN, "calling pci_release_regions.\n"); */
789 pci_release_regions(pcidev
);
790 pci_disable_device(pcidev
);
791 pci_set_drvdata(pcidev
, NULL
);
795 static struct pci_driver nes_pci_driver
= {
797 .id_table
= nes_pci_table
,
799 .remove
= __devexit_p(nes_remove
),
802 static ssize_t
nes_show_adapter(struct device_driver
*ddp
, char *buf
)
804 unsigned int devfn
= 0xffffffff;
805 unsigned char bus_number
= 0xff;
807 struct nes_device
*nesdev
;
809 list_for_each_entry(nesdev
, &nes_dev_list
, list
) {
810 if (i
== ee_flsh_adapter
) {
811 devfn
= nesdev
->pcidev
->devfn
;
812 bus_number
= nesdev
->pcidev
->bus
->number
;
818 return snprintf(buf
, PAGE_SIZE
, "%x:%x\n", bus_number
, devfn
);
821 static ssize_t
nes_store_adapter(struct device_driver
*ddp
,
822 const char *buf
, size_t count
)
824 char *p
= (char *)buf
;
826 ee_flsh_adapter
= simple_strtoul(p
, &p
, 10);
827 return strnlen(buf
, count
);
830 static ssize_t
nes_show_ee_cmd(struct device_driver
*ddp
, char *buf
)
832 u32 eeprom_cmd
= 0xdead;
834 struct nes_device
*nesdev
;
836 list_for_each_entry(nesdev
, &nes_dev_list
, list
) {
837 if (i
== ee_flsh_adapter
) {
838 eeprom_cmd
= nes_read32(nesdev
->regs
+ NES_EEPROM_COMMAND
);
843 return snprintf(buf
, PAGE_SIZE
, "0x%x\n", eeprom_cmd
);
846 static ssize_t
nes_store_ee_cmd(struct device_driver
*ddp
,
847 const char *buf
, size_t count
)
849 char *p
= (char *)buf
;
852 struct nes_device
*nesdev
;
854 if (p
[1] == 'x' || p
[1] == 'X' || p
[0] == 'x' || p
[0] == 'X') {
855 val
= simple_strtoul(p
, &p
, 16);
856 list_for_each_entry(nesdev
, &nes_dev_list
, list
) {
857 if (i
== ee_flsh_adapter
) {
858 nes_write32(nesdev
->regs
+ NES_EEPROM_COMMAND
, val
);
864 return strnlen(buf
, count
);
867 static ssize_t
nes_show_ee_data(struct device_driver
*ddp
, char *buf
)
869 u32 eeprom_data
= 0xdead;
871 struct nes_device
*nesdev
;
873 list_for_each_entry(nesdev
, &nes_dev_list
, list
) {
874 if (i
== ee_flsh_adapter
) {
875 eeprom_data
= nes_read32(nesdev
->regs
+ NES_EEPROM_DATA
);
881 return snprintf(buf
, PAGE_SIZE
, "0x%x\n", eeprom_data
);
884 static ssize_t
nes_store_ee_data(struct device_driver
*ddp
,
885 const char *buf
, size_t count
)
887 char *p
= (char *)buf
;
890 struct nes_device
*nesdev
;
892 if (p
[1] == 'x' || p
[1] == 'X' || p
[0] == 'x' || p
[0] == 'X') {
893 val
= simple_strtoul(p
, &p
, 16);
894 list_for_each_entry(nesdev
, &nes_dev_list
, list
) {
895 if (i
== ee_flsh_adapter
) {
896 nes_write32(nesdev
->regs
+ NES_EEPROM_DATA
, val
);
902 return strnlen(buf
, count
);
905 static ssize_t
nes_show_flash_cmd(struct device_driver
*ddp
, char *buf
)
907 u32 flash_cmd
= 0xdead;
909 struct nes_device
*nesdev
;
911 list_for_each_entry(nesdev
, &nes_dev_list
, list
) {
912 if (i
== ee_flsh_adapter
) {
913 flash_cmd
= nes_read32(nesdev
->regs
+ NES_FLASH_COMMAND
);
919 return snprintf(buf
, PAGE_SIZE
, "0x%x\n", flash_cmd
);
922 static ssize_t
nes_store_flash_cmd(struct device_driver
*ddp
,
923 const char *buf
, size_t count
)
925 char *p
= (char *)buf
;
928 struct nes_device
*nesdev
;
930 if (p
[1] == 'x' || p
[1] == 'X' || p
[0] == 'x' || p
[0] == 'X') {
931 val
= simple_strtoul(p
, &p
, 16);
932 list_for_each_entry(nesdev
, &nes_dev_list
, list
) {
933 if (i
== ee_flsh_adapter
) {
934 nes_write32(nesdev
->regs
+ NES_FLASH_COMMAND
, val
);
940 return strnlen(buf
, count
);
943 static ssize_t
nes_show_flash_data(struct device_driver
*ddp
, char *buf
)
945 u32 flash_data
= 0xdead;
947 struct nes_device
*nesdev
;
949 list_for_each_entry(nesdev
, &nes_dev_list
, list
) {
950 if (i
== ee_flsh_adapter
) {
951 flash_data
= nes_read32(nesdev
->regs
+ NES_FLASH_DATA
);
957 return snprintf(buf
, PAGE_SIZE
, "0x%x\n", flash_data
);
960 static ssize_t
nes_store_flash_data(struct device_driver
*ddp
,
961 const char *buf
, size_t count
)
963 char *p
= (char *)buf
;
966 struct nes_device
*nesdev
;
968 if (p
[1] == 'x' || p
[1] == 'X' || p
[0] == 'x' || p
[0] == 'X') {
969 val
= simple_strtoul(p
, &p
, 16);
970 list_for_each_entry(nesdev
, &nes_dev_list
, list
) {
971 if (i
== ee_flsh_adapter
) {
972 nes_write32(nesdev
->regs
+ NES_FLASH_DATA
, val
);
978 return strnlen(buf
, count
);
981 static ssize_t
nes_show_nonidx_addr(struct device_driver
*ddp
, char *buf
)
983 return snprintf(buf
, PAGE_SIZE
, "0x%x\n", sysfs_nonidx_addr
);
986 static ssize_t
nes_store_nonidx_addr(struct device_driver
*ddp
,
987 const char *buf
, size_t count
)
989 char *p
= (char *)buf
;
991 if (p
[1] == 'x' || p
[1] == 'X' || p
[0] == 'x' || p
[0] == 'X')
992 sysfs_nonidx_addr
= simple_strtoul(p
, &p
, 16);
994 return strnlen(buf
, count
);
997 static ssize_t
nes_show_nonidx_data(struct device_driver
*ddp
, char *buf
)
999 u32 nonidx_data
= 0xdead;
1001 struct nes_device
*nesdev
;
1003 list_for_each_entry(nesdev
, &nes_dev_list
, list
) {
1004 if (i
== ee_flsh_adapter
) {
1005 nonidx_data
= nes_read32(nesdev
->regs
+ sysfs_nonidx_addr
);
1011 return snprintf(buf
, PAGE_SIZE
, "0x%x\n", nonidx_data
);
1014 static ssize_t
nes_store_nonidx_data(struct device_driver
*ddp
,
1015 const char *buf
, size_t count
)
1017 char *p
= (char *)buf
;
1020 struct nes_device
*nesdev
;
1022 if (p
[1] == 'x' || p
[1] == 'X' || p
[0] == 'x' || p
[0] == 'X') {
1023 val
= simple_strtoul(p
, &p
, 16);
1024 list_for_each_entry(nesdev
, &nes_dev_list
, list
) {
1025 if (i
== ee_flsh_adapter
) {
1026 nes_write32(nesdev
->regs
+ sysfs_nonidx_addr
, val
);
1032 return strnlen(buf
, count
);
1035 static ssize_t
nes_show_idx_addr(struct device_driver
*ddp
, char *buf
)
1037 return snprintf(buf
, PAGE_SIZE
, "0x%x\n", sysfs_idx_addr
);
1040 static ssize_t
nes_store_idx_addr(struct device_driver
*ddp
,
1041 const char *buf
, size_t count
)
1043 char *p
= (char *)buf
;
1045 if (p
[1] == 'x' || p
[1] == 'X' || p
[0] == 'x' || p
[0] == 'X')
1046 sysfs_idx_addr
= simple_strtoul(p
, &p
, 16);
1048 return strnlen(buf
, count
);
1051 static ssize_t
nes_show_idx_data(struct device_driver
*ddp
, char *buf
)
1053 u32 idx_data
= 0xdead;
1055 struct nes_device
*nesdev
;
1057 list_for_each_entry(nesdev
, &nes_dev_list
, list
) {
1058 if (i
== ee_flsh_adapter
) {
1059 idx_data
= nes_read_indexed(nesdev
, sysfs_idx_addr
);
1065 return snprintf(buf
, PAGE_SIZE
, "0x%x\n", idx_data
);
1068 static ssize_t
nes_store_idx_data(struct device_driver
*ddp
,
1069 const char *buf
, size_t count
)
1071 char *p
= (char *)buf
;
1074 struct nes_device
*nesdev
;
1076 if (p
[1] == 'x' || p
[1] == 'X' || p
[0] == 'x' || p
[0] == 'X') {
1077 val
= simple_strtoul(p
, &p
, 16);
1078 list_for_each_entry(nesdev
, &nes_dev_list
, list
) {
1079 if (i
== ee_flsh_adapter
) {
1080 nes_write_indexed(nesdev
, sysfs_idx_addr
, val
);
1086 return strnlen(buf
, count
);
1091 * nes_show_wqm_quanta
1093 static ssize_t
nes_show_wqm_quanta(struct device_driver
*ddp
, char *buf
)
1095 u32 wqm_quanta_value
= 0xdead;
1097 struct nes_device
*nesdev
;
1099 list_for_each_entry(nesdev
, &nes_dev_list
, list
) {
1100 if (i
== ee_flsh_adapter
) {
1101 wqm_quanta_value
= nesdev
->nesadapter
->wqm_quanta
;
1107 return snprintf(buf
, PAGE_SIZE
, "0x%X\n", wqm_quanta
);
1112 * nes_store_wqm_quanta
1114 static ssize_t
nes_store_wqm_quanta(struct device_driver
*ddp
,
1115 const char *buf
, size_t count
)
1117 unsigned long wqm_quanta_value
;
1120 struct nes_device
*nesdev
;
1122 strict_strtoul(buf
, 0, &wqm_quanta_value
);
1123 list_for_each_entry(nesdev
, &nes_dev_list
, list
) {
1124 if (i
== ee_flsh_adapter
) {
1125 nesdev
->nesadapter
->wqm_quanta
= wqm_quanta_value
;
1126 wqm_config1
= nes_read_indexed(nesdev
,
1127 NES_IDX_WQM_CONFIG1
);
1128 nes_write_indexed(nesdev
, NES_IDX_WQM_CONFIG1
,
1129 ((wqm_quanta_value
<< 1) |
1130 (wqm_config1
& 0x00000001)));
1135 return strnlen(buf
, count
);
1138 static DRIVER_ATTR(adapter
, S_IRUSR
| S_IWUSR
,
1139 nes_show_adapter
, nes_store_adapter
);
1140 static DRIVER_ATTR(eeprom_cmd
, S_IRUSR
| S_IWUSR
,
1141 nes_show_ee_cmd
, nes_store_ee_cmd
);
1142 static DRIVER_ATTR(eeprom_data
, S_IRUSR
| S_IWUSR
,
1143 nes_show_ee_data
, nes_store_ee_data
);
1144 static DRIVER_ATTR(flash_cmd
, S_IRUSR
| S_IWUSR
,
1145 nes_show_flash_cmd
, nes_store_flash_cmd
);
1146 static DRIVER_ATTR(flash_data
, S_IRUSR
| S_IWUSR
,
1147 nes_show_flash_data
, nes_store_flash_data
);
1148 static DRIVER_ATTR(nonidx_addr
, S_IRUSR
| S_IWUSR
,
1149 nes_show_nonidx_addr
, nes_store_nonidx_addr
);
1150 static DRIVER_ATTR(nonidx_data
, S_IRUSR
| S_IWUSR
,
1151 nes_show_nonidx_data
, nes_store_nonidx_data
);
1152 static DRIVER_ATTR(idx_addr
, S_IRUSR
| S_IWUSR
,
1153 nes_show_idx_addr
, nes_store_idx_addr
);
1154 static DRIVER_ATTR(idx_data
, S_IRUSR
| S_IWUSR
,
1155 nes_show_idx_data
, nes_store_idx_data
);
1156 static DRIVER_ATTR(wqm_quanta
, S_IRUSR
| S_IWUSR
,
1157 nes_show_wqm_quanta
, nes_store_wqm_quanta
);
1159 static int nes_create_driver_sysfs(struct pci_driver
*drv
)
1162 error
= driver_create_file(&drv
->driver
, &driver_attr_adapter
);
1163 error
|= driver_create_file(&drv
->driver
, &driver_attr_eeprom_cmd
);
1164 error
|= driver_create_file(&drv
->driver
, &driver_attr_eeprom_data
);
1165 error
|= driver_create_file(&drv
->driver
, &driver_attr_flash_cmd
);
1166 error
|= driver_create_file(&drv
->driver
, &driver_attr_flash_data
);
1167 error
|= driver_create_file(&drv
->driver
, &driver_attr_nonidx_addr
);
1168 error
|= driver_create_file(&drv
->driver
, &driver_attr_nonidx_data
);
1169 error
|= driver_create_file(&drv
->driver
, &driver_attr_idx_addr
);
1170 error
|= driver_create_file(&drv
->driver
, &driver_attr_idx_data
);
1171 error
|= driver_create_file(&drv
->driver
, &driver_attr_wqm_quanta
);
1175 static void nes_remove_driver_sysfs(struct pci_driver
*drv
)
1177 driver_remove_file(&drv
->driver
, &driver_attr_adapter
);
1178 driver_remove_file(&drv
->driver
, &driver_attr_eeprom_cmd
);
1179 driver_remove_file(&drv
->driver
, &driver_attr_eeprom_data
);
1180 driver_remove_file(&drv
->driver
, &driver_attr_flash_cmd
);
1181 driver_remove_file(&drv
->driver
, &driver_attr_flash_data
);
1182 driver_remove_file(&drv
->driver
, &driver_attr_nonidx_addr
);
1183 driver_remove_file(&drv
->driver
, &driver_attr_nonidx_data
);
1184 driver_remove_file(&drv
->driver
, &driver_attr_idx_addr
);
1185 driver_remove_file(&drv
->driver
, &driver_attr_idx_data
);
1186 driver_remove_file(&drv
->driver
, &driver_attr_wqm_quanta
);
1190 * nes_init_module - module initialization entry point
1192 static int __init
nes_init_module(void)
1197 retval
= nes_cm_start();
1199 printk(KERN_ERR PFX
"Unable to start NetEffect iWARP CM.\n");
1202 retval
= pci_register_driver(&nes_pci_driver
);
1204 retval1
= nes_create_driver_sysfs(&nes_pci_driver
);
1206 printk(KERN_ERR PFX
"Unable to create NetEffect sys files.\n");
1213 * nes_exit_module - module unload entry point
1215 static void __exit
nes_exit_module(void)
1218 nes_remove_driver_sysfs(&nes_pci_driver
);
1220 pci_unregister_driver(&nes_pci_driver
);
1224 module_init(nes_init_module
);
1225 module_exit(nes_exit_module
);