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, 0644);
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, 0644);
79 MODULE_PARM_DESC(disable_mpa_crc
, "Disable checking of MPA CRC");
81 unsigned int send_first
= 0;
82 module_param(send_first
, int, 0644);
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, 0644);
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 wqm_quanta
= 0x10000;
95 module_param(wqm_quanta
, int, 0644);
96 MODULE_PARM_DESC(wqm_quanta
, "WQM quanta");
98 static unsigned int limit_maxrdreqsz
;
99 module_param(limit_maxrdreqsz
, bool, 0644);
100 MODULE_PARM_DESC(limit_maxrdreqsz
, "Limit max read request size to 256 Bytes");
102 LIST_HEAD(nes_adapter_list
);
103 static LIST_HEAD(nes_dev_list
);
105 atomic_t qps_destroyed
;
107 static unsigned int ee_flsh_adapter
;
108 static unsigned int sysfs_nonidx_addr
;
109 static unsigned int sysfs_idx_addr
;
111 static struct pci_device_id nes_pci_table
[] = {
112 {PCI_VENDOR_ID_NETEFFECT
, PCI_DEVICE_ID_NETEFFECT_NE020
, PCI_ANY_ID
, PCI_ANY_ID
},
116 MODULE_DEVICE_TABLE(pci
, nes_pci_table
);
118 static int nes_inetaddr_event(struct notifier_block
*, unsigned long, void *);
119 static int nes_net_event(struct notifier_block
*, unsigned long, void *);
120 static int nes_notifiers_registered
;
123 static struct notifier_block nes_inetaddr_notifier
= {
124 .notifier_call
= nes_inetaddr_event
127 static struct notifier_block nes_net_notifier
= {
128 .notifier_call
= nes_net_event
137 static int nes_inetaddr_event(struct notifier_block
*notifier
,
138 unsigned long event
, void *ptr
)
140 struct in_ifaddr
*ifa
= ptr
;
141 struct net_device
*event_netdev
= ifa
->ifa_dev
->dev
;
142 struct nes_device
*nesdev
;
143 struct net_device
*netdev
;
144 struct nes_vnic
*nesvnic
;
148 addr
= ntohl(ifa
->ifa_address
);
149 mask
= ntohl(ifa
->ifa_mask
);
150 nes_debug(NES_DBG_NETDEV
, "nes_inetaddr_event: ip address " NIPQUAD_FMT
151 ", netmask " NIPQUAD_FMT
".\n",
152 HIPQUAD(addr
), HIPQUAD(mask
));
153 list_for_each_entry(nesdev
, &nes_dev_list
, list
) {
154 nes_debug(NES_DBG_NETDEV
, "Nesdev list entry = 0x%p. (%s)\n",
155 nesdev
, nesdev
->netdev
[0]->name
);
156 netdev
= nesdev
->netdev
[0];
157 nesvnic
= netdev_priv(netdev
);
158 if (netdev
== event_netdev
) {
159 if (nesvnic
->rdma_enabled
== 0) {
160 nes_debug(NES_DBG_NETDEV
, "Returning without processing event for %s since"
161 " RDMA is not enabled.\n",
165 /* we have ifa->ifa_address/mask here if we need it */
168 nes_debug(NES_DBG_NETDEV
, "event:DOWN\n");
169 nes_write_indexed(nesdev
,
170 NES_IDX_DST_IP_ADDR
+(0x10*PCI_FUNC(nesdev
->pcidev
->devfn
)), 0);
172 nes_manage_arp_cache(netdev
, netdev
->dev_addr
,
173 ntohl(nesvnic
->local_ipaddr
), NES_ARP_DELETE
);
174 nesvnic
->local_ipaddr
= 0;
178 nes_debug(NES_DBG_NETDEV
, "event:UP\n");
180 if (nesvnic
->local_ipaddr
!= 0) {
181 nes_debug(NES_DBG_NETDEV
, "Interface already has local_ipaddr\n");
184 /* Add the address to the IP table */
185 nesvnic
->local_ipaddr
= ifa
->ifa_address
;
187 nes_write_indexed(nesdev
,
188 NES_IDX_DST_IP_ADDR
+(0x10*PCI_FUNC(nesdev
->pcidev
->devfn
)),
189 ntohl(ifa
->ifa_address
));
190 nes_manage_arp_cache(netdev
, netdev
->dev_addr
,
191 ntohl(nesvnic
->local_ipaddr
), NES_ARP_ADD
);
207 static int nes_net_event(struct notifier_block
*notifier
,
208 unsigned long event
, void *ptr
)
210 struct neighbour
*neigh
= ptr
;
211 struct nes_device
*nesdev
;
212 struct net_device
*netdev
;
213 struct nes_vnic
*nesvnic
;
216 case NETEVENT_NEIGH_UPDATE
:
217 list_for_each_entry(nesdev
, &nes_dev_list
, list
) {
218 /* nes_debug(NES_DBG_NETDEV, "Nesdev list entry = 0x%p.\n", nesdev); */
219 netdev
= nesdev
->netdev
[0];
220 nesvnic
= netdev_priv(netdev
);
221 if (netdev
== neigh
->dev
) {
222 if (nesvnic
->rdma_enabled
== 0) {
223 nes_debug(NES_DBG_NETDEV
, "Skipping device %s since no RDMA\n",
226 if (neigh
->nud_state
& NUD_VALID
) {
227 nes_manage_arp_cache(neigh
->dev
, neigh
->ha
,
228 ntohl(*(__be32
*)neigh
->primary_key
), NES_ARP_ADD
);
230 nes_manage_arp_cache(neigh
->dev
, neigh
->ha
,
231 ntohl(*(__be32
*)neigh
->primary_key
), NES_ARP_DELETE
);
239 nes_debug(NES_DBG_NETDEV
, "NETEVENT_ %lu undefined\n", event
);
250 void nes_add_ref(struct ib_qp
*ibqp
)
252 struct nes_qp
*nesqp
;
254 nesqp
= to_nesqp(ibqp
);
255 nes_debug(NES_DBG_QP
, "Bumping refcount for QP%u. Pre-inc value = %u\n",
256 ibqp
->qp_num
, atomic_read(&nesqp
->refcount
));
257 atomic_inc(&nesqp
->refcount
);
260 static void nes_cqp_rem_ref_callback(struct nes_device
*nesdev
, struct nes_cqp_request
*cqp_request
)
263 struct nes_qp
*nesqp
= cqp_request
->cqp_callback_pointer
;
264 struct nes_adapter
*nesadapter
= nesdev
->nesadapter
;
267 atomic_inc(&qps_destroyed
);
269 /* Free the control structures */
271 qp_id
= nesqp
->hwqp
.qp_id
;
272 if (nesqp
->pbl_vbase
) {
273 pci_free_consistent(nesdev
->pcidev
, nesqp
->qp_mem_size
,
274 nesqp
->hwqp
.q2_vbase
, nesqp
->hwqp
.q2_pbase
);
275 spin_lock_irqsave(&nesadapter
->pbl_lock
, flags
);
276 nesadapter
->free_256pbl
++;
277 spin_unlock_irqrestore(&nesadapter
->pbl_lock
, flags
);
278 pci_free_consistent(nesdev
->pcidev
, 256, nesqp
->pbl_vbase
, nesqp
->pbl_pbase
);
279 nesqp
->pbl_vbase
= NULL
;
282 pci_free_consistent(nesdev
->pcidev
, nesqp
->qp_mem_size
,
283 nesqp
->hwqp
.sq_vbase
, nesqp
->hwqp
.sq_pbase
);
285 nes_free_resource(nesadapter
, nesadapter
->allocated_qps
, nesqp
->hwqp
.qp_id
);
287 nesadapter
->qp_table
[nesqp
->hwqp
.qp_id
-NES_FIRST_QPN
] = NULL
;
288 kfree(nesqp
->allocated_buffer
);
295 void nes_rem_ref(struct ib_qp
*ibqp
)
298 struct nes_qp
*nesqp
;
299 struct nes_vnic
*nesvnic
= to_nesvnic(ibqp
->device
);
300 struct nes_device
*nesdev
= nesvnic
->nesdev
;
301 struct nes_hw_cqp_wqe
*cqp_wqe
;
302 struct nes_cqp_request
*cqp_request
;
305 nesqp
= to_nesqp(ibqp
);
307 if (atomic_read(&nesqp
->refcount
) == 0) {
308 printk(KERN_INFO PFX
"%s: Reference count already 0 for QP%d, last aeq = 0x%04X.\n",
309 __func__
, ibqp
->qp_num
, nesqp
->last_aeq
);
313 if (atomic_dec_and_test(&nesqp
->refcount
)) {
315 cqp_request
= nes_get_cqp_request(nesdev
);
316 if (cqp_request
== NULL
) {
317 nes_debug(NES_DBG_QP
, "Failed to get a cqp_request.\n");
320 cqp_request
->waiting
= 0;
321 cqp_request
->callback
= 1;
322 cqp_request
->cqp_callback
= nes_cqp_rem_ref_callback
;
323 cqp_request
->cqp_callback_pointer
= nesqp
;
324 cqp_wqe
= &cqp_request
->cqp_wqe
;
326 nes_fill_init_cqp_wqe(cqp_wqe
, nesdev
);
327 opcode
= NES_CQP_DESTROY_QP
| NES_CQP_QP_TYPE_IWARP
;
329 if (nesqp
->hte_added
) {
330 opcode
|= NES_CQP_QP_DEL_HTE
;
331 nesqp
->hte_added
= 0;
333 set_wqe_32bit_value(cqp_wqe
->wqe_words
, NES_CQP_WQE_OPCODE_IDX
, opcode
);
334 set_wqe_32bit_value(cqp_wqe
->wqe_words
, NES_CQP_WQE_ID_IDX
, nesqp
->hwqp
.qp_id
);
335 u64temp
= (u64
)nesqp
->nesqp_context_pbase
;
336 set_wqe_64bit_value(cqp_wqe
->wqe_words
, NES_CQP_QP_WQE_CONTEXT_LOW_IDX
, u64temp
);
337 nes_post_cqp_request(nesdev
, cqp_request
);
345 struct ib_qp
*nes_get_qp(struct ib_device
*device
, int qpn
)
347 struct nes_vnic
*nesvnic
= to_nesvnic(device
);
348 struct nes_device
*nesdev
= nesvnic
->nesdev
;
349 struct nes_adapter
*nesadapter
= nesdev
->nesadapter
;
351 if ((qpn
< NES_FIRST_QPN
) || (qpn
>= (NES_FIRST_QPN
+ nesadapter
->max_qp
)))
354 return &nesadapter
->qp_table
[qpn
- NES_FIRST_QPN
]->ibqp
;
361 static void nes_print_macaddr(struct net_device
*netdev
)
363 DECLARE_MAC_BUF(mac
);
365 nes_debug(NES_DBG_INIT
, "%s: %s, IRQ %u\n",
366 netdev
->name
, print_mac(mac
, netdev
->dev_addr
), netdev
->irq
);
370 * nes_interrupt - handle interrupts
372 static irqreturn_t
nes_interrupt(int irq
, void *dev_id
)
374 struct nes_device
*nesdev
= (struct nes_device
*)dev_id
;
382 if (nesdev
->msi_enabled
) {
383 /* No need to read the interrupt pending register if msi is enabled */
386 if (unlikely(nesdev
->nesadapter
->hw_rev
== NE020_REV
)) {
387 /* Master interrupt enable provides synchronization for kicking off bottom half
388 when interrupt sharing is going on */
389 int_mask
= nes_read32(nesdev
->regs
+ NES_INT_MASK
);
390 if (int_mask
& 0x80000000) {
391 /* Check interrupt status to see if this might be ours */
392 int_stat
= nes_read32(nesdev
->regs
+ NES_INT_STAT
);
393 int_req
= nesdev
->int_req
;
394 if (int_stat
&int_req
) {
395 /* if interesting CEQ or AEQ is pending, claim the interrupt */
396 if ((int_stat
&int_req
) & (~(NES_INT_TIMER
|NES_INT_INTF
))) {
399 if (((int_stat
& int_req
) & NES_INT_TIMER
) == NES_INT_TIMER
) {
400 /* Timer might be running but might be for another function */
401 timer_stat
= nes_read32(nesdev
->regs
+ NES_TIMER_STAT
);
402 if ((timer_stat
& nesdev
->timer_int_req
) != 0) {
406 if ((((int_stat
& int_req
) & NES_INT_INTF
) == NES_INT_INTF
) &&
408 intf_int_stat
= nes_read32(nesdev
->regs
+NES_INTF_INT_STAT
);
409 if ((intf_int_stat
& nesdev
->intf_int_req
) != 0) {
415 nes_write32(nesdev
->regs
+NES_INT_MASK
, int_mask
& (~0x80000000));
416 int_mask
= nes_read32(nesdev
->regs
+NES_INT_MASK
);
417 /* Save off the status to save an additional read */
418 nesdev
->int_stat
= int_stat
;
419 nesdev
->napi_isr_ran
= 1;
424 handled
= nes_read32(nesdev
->regs
+NES_INT_PENDING
);
430 if (nes_napi_isr(nesdev
) == 0) {
431 tasklet_schedule(&nesdev
->dpc_tasklet
);
442 * nes_probe - Device initialization
444 static int __devinit
nes_probe(struct pci_dev
*pcidev
, const struct pci_device_id
*ent
)
446 struct net_device
*netdev
= NULL
;
447 struct nes_device
*nesdev
= NULL
;
449 struct nes_vnic
*nesvnic
= NULL
;
450 void __iomem
*mmio_regs
= NULL
;
453 assert(pcidev
!= NULL
);
456 printk(KERN_INFO PFX
"NetEffect RNIC driver v%s loading. (%s)\n",
457 DRV_VERSION
, pci_name(pcidev
));
459 ret
= pci_enable_device(pcidev
);
461 printk(KERN_ERR PFX
"Unable to enable PCI device. (%s)\n", pci_name(pcidev
));
465 nes_debug(NES_DBG_INIT
, "BAR0 (@0x%08lX) size = 0x%lX bytes\n",
466 (long unsigned int)pci_resource_start(pcidev
, BAR_0
),
467 (long unsigned int)pci_resource_len(pcidev
, BAR_0
));
468 nes_debug(NES_DBG_INIT
, "BAR1 (@0x%08lX) size = 0x%lX bytes\n",
469 (long unsigned int)pci_resource_start(pcidev
, BAR_1
),
470 (long unsigned int)pci_resource_len(pcidev
, BAR_1
));
472 /* Make sure PCI base addr are MMIO */
473 if (!(pci_resource_flags(pcidev
, BAR_0
) & IORESOURCE_MEM
) ||
474 !(pci_resource_flags(pcidev
, BAR_1
) & IORESOURCE_MEM
)) {
475 printk(KERN_ERR PFX
"PCI regions not an MMIO resource\n");
480 /* Reserve PCI I/O and memory resources */
481 ret
= pci_request_regions(pcidev
, DRV_NAME
);
483 printk(KERN_ERR PFX
"Unable to request regions. (%s)\n", pci_name(pcidev
));
487 if ((sizeof(dma_addr_t
) > 4)) {
488 ret
= pci_set_dma_mask(pcidev
, DMA_64BIT_MASK
);
490 printk(KERN_ERR PFX
"64b DMA mask configuration failed\n");
493 ret
= pci_set_consistent_dma_mask(pcidev
, DMA_64BIT_MASK
);
495 printk(KERN_ERR PFX
"64b DMA consistent mask configuration failed\n");
499 ret
= pci_set_dma_mask(pcidev
, DMA_32BIT_MASK
);
501 printk(KERN_ERR PFX
"32b DMA mask configuration failed\n");
504 ret
= pci_set_consistent_dma_mask(pcidev
, DMA_32BIT_MASK
);
506 printk(KERN_ERR PFX
"32b DMA consistent mask configuration failed\n");
511 pci_set_master(pcidev
);
513 /* Allocate hardware structure */
514 nesdev
= kzalloc(sizeof(struct nes_device
), GFP_KERNEL
);
516 printk(KERN_ERR PFX
"%s: Unable to alloc hardware struct\n", pci_name(pcidev
));
521 nes_debug(NES_DBG_INIT
, "Allocated nes device at %p\n", nesdev
);
522 nesdev
->pcidev
= pcidev
;
523 pci_set_drvdata(pcidev
, nesdev
);
525 pci_read_config_byte(pcidev
, 0x0008, &hw_rev
);
526 nes_debug(NES_DBG_INIT
, "hw_rev=%u\n", hw_rev
);
528 spin_lock_init(&nesdev
->indexed_regs_lock
);
530 /* Remap the PCI registers in adapter BAR0 to kernel VA space */
531 mmio_regs
= ioremap_nocache(pci_resource_start(pcidev
, BAR_0
), sizeof(mmio_regs
));
532 if (mmio_regs
== NULL
) {
533 printk(KERN_ERR PFX
"Unable to remap BAR0\n");
537 nesdev
->regs
= mmio_regs
;
538 nesdev
->index_reg
= 0x50 + (PCI_FUNC(pcidev
->devfn
)*8) + mmio_regs
;
540 /* Ensure interrupts are disabled */
541 nes_write32(nesdev
->regs
+NES_INT_MASK
, 0x7fffffff);
543 if (nes_drv_opt
& NES_DRV_OPT_ENABLE_MSI
) {
544 if (!pci_enable_msi(nesdev
->pcidev
)) {
545 nesdev
->msi_enabled
= 1;
546 nes_debug(NES_DBG_INIT
, "MSI is enabled for device %s\n",
549 nes_debug(NES_DBG_INIT
, "MSI is disabled by linux for device %s\n",
553 nes_debug(NES_DBG_INIT
, "MSI not requested due to driver options for device %s\n",
557 nesdev
->csr_start
= pci_resource_start(nesdev
->pcidev
, BAR_0
);
558 nesdev
->doorbell_region
= pci_resource_start(nesdev
->pcidev
, BAR_1
);
560 /* Init the adapter */
561 nesdev
->nesadapter
= nes_init_adapter(nesdev
, hw_rev
);
562 if (!nesdev
->nesadapter
) {
563 printk(KERN_ERR PFX
"Unable to initialize adapter.\n");
567 nesdev
->nesadapter
->et_rx_coalesce_usecs_irq
= interrupt_mod_interval
;
568 nesdev
->nesadapter
->wqm_quanta
= wqm_quanta
;
570 /* nesdev->base_doorbell_index =
571 nesdev->nesadapter->pd_config_base[PCI_FUNC(nesdev->pcidev->devfn)]; */
572 nesdev
->base_doorbell_index
= 1;
573 nesdev
->doorbell_start
= nesdev
->nesadapter
->doorbell_start
;
574 if (nesdev
->nesadapter
->phy_type
[0] == NES_PHY_TYPE_PUMA_1G
) {
575 switch (PCI_FUNC(nesdev
->pcidev
->devfn
) %
576 nesdev
->nesadapter
->port_count
) {
578 nesdev
->mac_index
= 2;
581 nesdev
->mac_index
= 1;
584 nesdev
->mac_index
= 3;
588 nesdev
->mac_index
= 0;
591 nesdev
->mac_index
= PCI_FUNC(nesdev
->pcidev
->devfn
) %
592 nesdev
->nesadapter
->port_count
;
595 if ((limit_maxrdreqsz
||
596 ((nesdev
->nesadapter
->phy_type
[0] == NES_PHY_TYPE_GLADIUS
) &&
597 (hw_rev
== NE020_REV1
))) &&
598 (pcie_get_readrq(pcidev
) > 256)) {
599 if (pcie_set_readrq(pcidev
, 256))
600 printk(KERN_ERR PFX
"Unable to set max read request"
603 nes_debug(NES_DBG_INIT
, "Max read request size set"
607 tasklet_init(&nesdev
->dpc_tasklet
, nes_dpc
, (unsigned long)nesdev
);
609 /* bring up the Control QP */
610 if (nes_init_cqp(nesdev
)) {
616 nes_write32(nesdev
->regs
+NES_CQE_ALLOC
, NES_CQE_ALLOC_NOTIFY_NEXT
|
617 PCI_FUNC(nesdev
->pcidev
->devfn
));
618 nes_read32(nesdev
->regs
+NES_CQE_ALLOC
);
620 /* Enable the interrupts */
621 nesdev
->int_req
= (0x101 << PCI_FUNC(nesdev
->pcidev
->devfn
)) |
622 (1 << (PCI_FUNC(nesdev
->pcidev
->devfn
)+16));
623 if (PCI_FUNC(nesdev
->pcidev
->devfn
) < 4) {
624 nesdev
->int_req
|= (1 << (PCI_FUNC(nesdev
->mac_index
)+24));
627 /* TODO: This really should be the first driver to load, not function 0 */
628 if (PCI_FUNC(nesdev
->pcidev
->devfn
) == 0) {
629 /* pick up PCI and critical errors if the first driver to load */
630 nesdev
->intf_int_req
= NES_INTF_INT_PCIERR
| NES_INTF_INT_CRITERR
;
631 nesdev
->int_req
|= NES_INT_INTF
;
633 nesdev
->intf_int_req
= 0;
635 nesdev
->intf_int_req
|= (1 << (PCI_FUNC(nesdev
->pcidev
->devfn
)+16));
636 nes_write_indexed(nesdev
, NES_IDX_DEBUG_ERROR_MASKS0
, 0);
637 nes_write_indexed(nesdev
, NES_IDX_DEBUG_ERROR_MASKS1
, 0);
638 nes_write_indexed(nesdev
, NES_IDX_DEBUG_ERROR_MASKS2
, 0x00001265);
639 nes_write_indexed(nesdev
, NES_IDX_DEBUG_ERROR_MASKS4
, 0x18021804);
641 nes_write_indexed(nesdev
, NES_IDX_DEBUG_ERROR_MASKS3
, 0x17801790);
643 /* deal with both periodic and one_shot */
644 nesdev
->timer_int_req
= 0x101 << PCI_FUNC(nesdev
->pcidev
->devfn
);
645 nesdev
->nesadapter
->timer_int_req
|= nesdev
->timer_int_req
;
646 nes_debug(NES_DBG_INIT
, "setting int_req for function %u, nesdev = 0x%04X, adapter = 0x%04X\n",
647 PCI_FUNC(nesdev
->pcidev
->devfn
),
648 nesdev
->timer_int_req
, nesdev
->nesadapter
->timer_int_req
);
650 nes_write32(nesdev
->regs
+NES_INTF_INT_MASK
, ~(nesdev
->intf_int_req
));
652 list_add_tail(&nesdev
->list
, &nes_dev_list
);
654 /* Request an interrupt line for the driver */
655 ret
= request_irq(pcidev
->irq
, nes_interrupt
, IRQF_SHARED
, DRV_NAME
, nesdev
);
657 printk(KERN_ERR PFX
"%s: requested IRQ %u is busy\n",
658 pci_name(pcidev
), pcidev
->irq
);
662 nes_write32(nesdev
->regs
+NES_INT_MASK
, ~nesdev
->int_req
);
664 if (nes_notifiers_registered
== 0) {
665 register_inetaddr_notifier(&nes_inetaddr_notifier
);
666 register_netevent_notifier(&nes_net_notifier
);
668 nes_notifiers_registered
++;
670 /* Initialize network devices */
671 if ((netdev
= nes_netdev_init(nesdev
, mmio_regs
)) == NULL
) {
675 /* Register network device */
676 ret
= register_netdev(netdev
);
678 printk(KERN_ERR PFX
"Unable to register netdev, ret = %d\n", ret
);
679 nes_netdev_destroy(netdev
);
683 nes_print_macaddr(netdev
);
684 /* create a CM core for this netdev */
685 nesvnic
= netdev_priv(netdev
);
687 nesdev
->netdev_count
++;
688 nesdev
->nesadapter
->netdev_count
++;
691 printk(KERN_ERR PFX
"%s: NetEffect RNIC driver successfully loaded.\n",
696 printk(KERN_ERR PFX
"bail7\n");
697 while (nesdev
->netdev_count
> 0) {
698 nesdev
->netdev_count
--;
699 nesdev
->nesadapter
->netdev_count
--;
701 unregister_netdev(nesdev
->netdev
[nesdev
->netdev_count
]);
702 nes_netdev_destroy(nesdev
->netdev
[nesdev
->netdev_count
]);
705 nes_debug(NES_DBG_INIT
, "netdev_count=%d, nesadapter->netdev_count=%d\n",
706 nesdev
->netdev_count
, nesdev
->nesadapter
->netdev_count
);
708 nes_notifiers_registered
--;
709 if (nes_notifiers_registered
== 0) {
710 unregister_netevent_notifier(&nes_net_notifier
);
711 unregister_inetaddr_notifier(&nes_inetaddr_notifier
);
714 list_del(&nesdev
->list
);
715 nes_destroy_cqp(nesdev
);
718 printk(KERN_ERR PFX
"bail65\n");
719 free_irq(pcidev
->irq
, nesdev
);
720 if (nesdev
->msi_enabled
) {
721 pci_disable_msi(pcidev
);
724 printk(KERN_ERR PFX
"bail6\n");
725 tasklet_kill(&nesdev
->dpc_tasklet
);
726 /* Deallocate the Adapter Structure */
727 nes_destroy_adapter(nesdev
->nesadapter
);
730 printk(KERN_ERR PFX
"bail5\n");
731 iounmap(nesdev
->regs
);
734 printk(KERN_ERR PFX
"bail3\n");
738 pci_release_regions(pcidev
);
741 pci_disable_device(pcidev
);
749 * nes_remove - unload from kernel
751 static void __devexit
nes_remove(struct pci_dev
*pcidev
)
753 struct nes_device
*nesdev
= pci_get_drvdata(pcidev
);
754 struct net_device
*netdev
;
755 int netdev_index
= 0;
757 if (nesdev
->netdev_count
) {
758 netdev
= nesdev
->netdev
[netdev_index
];
760 netif_stop_queue(netdev
);
761 unregister_netdev(netdev
);
762 nes_netdev_destroy(netdev
);
764 nesdev
->netdev
[netdev_index
] = NULL
;
765 nesdev
->netdev_count
--;
766 nesdev
->nesadapter
->netdev_count
--;
770 nes_notifiers_registered
--;
771 if (nes_notifiers_registered
== 0) {
772 unregister_netevent_notifier(&nes_net_notifier
);
773 unregister_inetaddr_notifier(&nes_inetaddr_notifier
);
776 list_del(&nesdev
->list
);
777 nes_destroy_cqp(nesdev
);
779 free_irq(pcidev
->irq
, nesdev
);
780 tasklet_kill(&nesdev
->dpc_tasklet
);
782 /* Deallocate the Adapter Structure */
783 nes_destroy_adapter(nesdev
->nesadapter
);
785 if (nesdev
->msi_enabled
) {
786 pci_disable_msi(pcidev
);
789 iounmap(nesdev
->regs
);
792 /* nes_debug(NES_DBG_SHUTDOWN, "calling pci_release_regions.\n"); */
793 pci_release_regions(pcidev
);
794 pci_disable_device(pcidev
);
795 pci_set_drvdata(pcidev
, NULL
);
799 static struct pci_driver nes_pci_driver
= {
801 .id_table
= nes_pci_table
,
803 .remove
= __devexit_p(nes_remove
),
806 static ssize_t
nes_show_adapter(struct device_driver
*ddp
, char *buf
)
808 unsigned int devfn
= 0xffffffff;
809 unsigned char bus_number
= 0xff;
811 struct nes_device
*nesdev
;
813 list_for_each_entry(nesdev
, &nes_dev_list
, list
) {
814 if (i
== ee_flsh_adapter
) {
815 devfn
= nesdev
->pcidev
->devfn
;
816 bus_number
= nesdev
->pcidev
->bus
->number
;
822 return snprintf(buf
, PAGE_SIZE
, "%x:%x\n", bus_number
, devfn
);
825 static ssize_t
nes_store_adapter(struct device_driver
*ddp
,
826 const char *buf
, size_t count
)
828 char *p
= (char *)buf
;
830 ee_flsh_adapter
= simple_strtoul(p
, &p
, 10);
831 return strnlen(buf
, count
);
834 static ssize_t
nes_show_ee_cmd(struct device_driver
*ddp
, char *buf
)
836 u32 eeprom_cmd
= 0xdead;
838 struct nes_device
*nesdev
;
840 list_for_each_entry(nesdev
, &nes_dev_list
, list
) {
841 if (i
== ee_flsh_adapter
) {
842 eeprom_cmd
= nes_read32(nesdev
->regs
+ NES_EEPROM_COMMAND
);
847 return snprintf(buf
, PAGE_SIZE
, "0x%x\n", eeprom_cmd
);
850 static ssize_t
nes_store_ee_cmd(struct device_driver
*ddp
,
851 const char *buf
, size_t count
)
853 char *p
= (char *)buf
;
856 struct nes_device
*nesdev
;
858 if (p
[1] == 'x' || p
[1] == 'X' || p
[0] == 'x' || p
[0] == 'X') {
859 val
= simple_strtoul(p
, &p
, 16);
860 list_for_each_entry(nesdev
, &nes_dev_list
, list
) {
861 if (i
== ee_flsh_adapter
) {
862 nes_write32(nesdev
->regs
+ NES_EEPROM_COMMAND
, val
);
868 return strnlen(buf
, count
);
871 static ssize_t
nes_show_ee_data(struct device_driver
*ddp
, char *buf
)
873 u32 eeprom_data
= 0xdead;
875 struct nes_device
*nesdev
;
877 list_for_each_entry(nesdev
, &nes_dev_list
, list
) {
878 if (i
== ee_flsh_adapter
) {
879 eeprom_data
= nes_read32(nesdev
->regs
+ NES_EEPROM_DATA
);
885 return snprintf(buf
, PAGE_SIZE
, "0x%x\n", eeprom_data
);
888 static ssize_t
nes_store_ee_data(struct device_driver
*ddp
,
889 const char *buf
, size_t count
)
891 char *p
= (char *)buf
;
894 struct nes_device
*nesdev
;
896 if (p
[1] == 'x' || p
[1] == 'X' || p
[0] == 'x' || p
[0] == 'X') {
897 val
= simple_strtoul(p
, &p
, 16);
898 list_for_each_entry(nesdev
, &nes_dev_list
, list
) {
899 if (i
== ee_flsh_adapter
) {
900 nes_write32(nesdev
->regs
+ NES_EEPROM_DATA
, val
);
906 return strnlen(buf
, count
);
909 static ssize_t
nes_show_flash_cmd(struct device_driver
*ddp
, char *buf
)
911 u32 flash_cmd
= 0xdead;
913 struct nes_device
*nesdev
;
915 list_for_each_entry(nesdev
, &nes_dev_list
, list
) {
916 if (i
== ee_flsh_adapter
) {
917 flash_cmd
= nes_read32(nesdev
->regs
+ NES_FLASH_COMMAND
);
923 return snprintf(buf
, PAGE_SIZE
, "0x%x\n", flash_cmd
);
926 static ssize_t
nes_store_flash_cmd(struct device_driver
*ddp
,
927 const char *buf
, size_t count
)
929 char *p
= (char *)buf
;
932 struct nes_device
*nesdev
;
934 if (p
[1] == 'x' || p
[1] == 'X' || p
[0] == 'x' || p
[0] == 'X') {
935 val
= simple_strtoul(p
, &p
, 16);
936 list_for_each_entry(nesdev
, &nes_dev_list
, list
) {
937 if (i
== ee_flsh_adapter
) {
938 nes_write32(nesdev
->regs
+ NES_FLASH_COMMAND
, val
);
944 return strnlen(buf
, count
);
947 static ssize_t
nes_show_flash_data(struct device_driver
*ddp
, char *buf
)
949 u32 flash_data
= 0xdead;
951 struct nes_device
*nesdev
;
953 list_for_each_entry(nesdev
, &nes_dev_list
, list
) {
954 if (i
== ee_flsh_adapter
) {
955 flash_data
= nes_read32(nesdev
->regs
+ NES_FLASH_DATA
);
961 return snprintf(buf
, PAGE_SIZE
, "0x%x\n", flash_data
);
964 static ssize_t
nes_store_flash_data(struct device_driver
*ddp
,
965 const char *buf
, size_t count
)
967 char *p
= (char *)buf
;
970 struct nes_device
*nesdev
;
972 if (p
[1] == 'x' || p
[1] == 'X' || p
[0] == 'x' || p
[0] == 'X') {
973 val
= simple_strtoul(p
, &p
, 16);
974 list_for_each_entry(nesdev
, &nes_dev_list
, list
) {
975 if (i
== ee_flsh_adapter
) {
976 nes_write32(nesdev
->regs
+ NES_FLASH_DATA
, val
);
982 return strnlen(buf
, count
);
985 static ssize_t
nes_show_nonidx_addr(struct device_driver
*ddp
, char *buf
)
987 return snprintf(buf
, PAGE_SIZE
, "0x%x\n", sysfs_nonidx_addr
);
990 static ssize_t
nes_store_nonidx_addr(struct device_driver
*ddp
,
991 const char *buf
, size_t count
)
993 char *p
= (char *)buf
;
995 if (p
[1] == 'x' || p
[1] == 'X' || p
[0] == 'x' || p
[0] == 'X')
996 sysfs_nonidx_addr
= simple_strtoul(p
, &p
, 16);
998 return strnlen(buf
, count
);
1001 static ssize_t
nes_show_nonidx_data(struct device_driver
*ddp
, char *buf
)
1003 u32 nonidx_data
= 0xdead;
1005 struct nes_device
*nesdev
;
1007 list_for_each_entry(nesdev
, &nes_dev_list
, list
) {
1008 if (i
== ee_flsh_adapter
) {
1009 nonidx_data
= nes_read32(nesdev
->regs
+ sysfs_nonidx_addr
);
1015 return snprintf(buf
, PAGE_SIZE
, "0x%x\n", nonidx_data
);
1018 static ssize_t
nes_store_nonidx_data(struct device_driver
*ddp
,
1019 const char *buf
, size_t count
)
1021 char *p
= (char *)buf
;
1024 struct nes_device
*nesdev
;
1026 if (p
[1] == 'x' || p
[1] == 'X' || p
[0] == 'x' || p
[0] == 'X') {
1027 val
= simple_strtoul(p
, &p
, 16);
1028 list_for_each_entry(nesdev
, &nes_dev_list
, list
) {
1029 if (i
== ee_flsh_adapter
) {
1030 nes_write32(nesdev
->regs
+ sysfs_nonidx_addr
, val
);
1036 return strnlen(buf
, count
);
1039 static ssize_t
nes_show_idx_addr(struct device_driver
*ddp
, char *buf
)
1041 return snprintf(buf
, PAGE_SIZE
, "0x%x\n", sysfs_idx_addr
);
1044 static ssize_t
nes_store_idx_addr(struct device_driver
*ddp
,
1045 const char *buf
, size_t count
)
1047 char *p
= (char *)buf
;
1049 if (p
[1] == 'x' || p
[1] == 'X' || p
[0] == 'x' || p
[0] == 'X')
1050 sysfs_idx_addr
= simple_strtoul(p
, &p
, 16);
1052 return strnlen(buf
, count
);
1055 static ssize_t
nes_show_idx_data(struct device_driver
*ddp
, char *buf
)
1057 u32 idx_data
= 0xdead;
1059 struct nes_device
*nesdev
;
1061 list_for_each_entry(nesdev
, &nes_dev_list
, list
) {
1062 if (i
== ee_flsh_adapter
) {
1063 idx_data
= nes_read_indexed(nesdev
, sysfs_idx_addr
);
1069 return snprintf(buf
, PAGE_SIZE
, "0x%x\n", idx_data
);
1072 static ssize_t
nes_store_idx_data(struct device_driver
*ddp
,
1073 const char *buf
, size_t count
)
1075 char *p
= (char *)buf
;
1078 struct nes_device
*nesdev
;
1080 if (p
[1] == 'x' || p
[1] == 'X' || p
[0] == 'x' || p
[0] == 'X') {
1081 val
= simple_strtoul(p
, &p
, 16);
1082 list_for_each_entry(nesdev
, &nes_dev_list
, list
) {
1083 if (i
== ee_flsh_adapter
) {
1084 nes_write_indexed(nesdev
, sysfs_idx_addr
, val
);
1090 return strnlen(buf
, count
);
1095 * nes_show_wqm_quanta
1097 static ssize_t
nes_show_wqm_quanta(struct device_driver
*ddp
, char *buf
)
1099 u32 wqm_quanta_value
= 0xdead;
1101 struct nes_device
*nesdev
;
1103 list_for_each_entry(nesdev
, &nes_dev_list
, list
) {
1104 if (i
== ee_flsh_adapter
) {
1105 wqm_quanta_value
= nesdev
->nesadapter
->wqm_quanta
;
1111 return snprintf(buf
, PAGE_SIZE
, "0x%X\n", wqm_quanta
);
1116 * nes_store_wqm_quanta
1118 static ssize_t
nes_store_wqm_quanta(struct device_driver
*ddp
,
1119 const char *buf
, size_t count
)
1121 unsigned long wqm_quanta_value
;
1124 struct nes_device
*nesdev
;
1126 strict_strtoul(buf
, 0, &wqm_quanta_value
);
1127 list_for_each_entry(nesdev
, &nes_dev_list
, list
) {
1128 if (i
== ee_flsh_adapter
) {
1129 nesdev
->nesadapter
->wqm_quanta
= wqm_quanta_value
;
1130 wqm_config1
= nes_read_indexed(nesdev
,
1131 NES_IDX_WQM_CONFIG1
);
1132 nes_write_indexed(nesdev
, NES_IDX_WQM_CONFIG1
,
1133 ((wqm_quanta_value
<< 1) |
1134 (wqm_config1
& 0x00000001)));
1139 return strnlen(buf
, count
);
1142 static DRIVER_ATTR(adapter
, S_IRUSR
| S_IWUSR
,
1143 nes_show_adapter
, nes_store_adapter
);
1144 static DRIVER_ATTR(eeprom_cmd
, S_IRUSR
| S_IWUSR
,
1145 nes_show_ee_cmd
, nes_store_ee_cmd
);
1146 static DRIVER_ATTR(eeprom_data
, S_IRUSR
| S_IWUSR
,
1147 nes_show_ee_data
, nes_store_ee_data
);
1148 static DRIVER_ATTR(flash_cmd
, S_IRUSR
| S_IWUSR
,
1149 nes_show_flash_cmd
, nes_store_flash_cmd
);
1150 static DRIVER_ATTR(flash_data
, S_IRUSR
| S_IWUSR
,
1151 nes_show_flash_data
, nes_store_flash_data
);
1152 static DRIVER_ATTR(nonidx_addr
, S_IRUSR
| S_IWUSR
,
1153 nes_show_nonidx_addr
, nes_store_nonidx_addr
);
1154 static DRIVER_ATTR(nonidx_data
, S_IRUSR
| S_IWUSR
,
1155 nes_show_nonidx_data
, nes_store_nonidx_data
);
1156 static DRIVER_ATTR(idx_addr
, S_IRUSR
| S_IWUSR
,
1157 nes_show_idx_addr
, nes_store_idx_addr
);
1158 static DRIVER_ATTR(idx_data
, S_IRUSR
| S_IWUSR
,
1159 nes_show_idx_data
, nes_store_idx_data
);
1160 static DRIVER_ATTR(wqm_quanta
, S_IRUSR
| S_IWUSR
,
1161 nes_show_wqm_quanta
, nes_store_wqm_quanta
);
1163 static int nes_create_driver_sysfs(struct pci_driver
*drv
)
1166 error
= driver_create_file(&drv
->driver
, &driver_attr_adapter
);
1167 error
|= driver_create_file(&drv
->driver
, &driver_attr_eeprom_cmd
);
1168 error
|= driver_create_file(&drv
->driver
, &driver_attr_eeprom_data
);
1169 error
|= driver_create_file(&drv
->driver
, &driver_attr_flash_cmd
);
1170 error
|= driver_create_file(&drv
->driver
, &driver_attr_flash_data
);
1171 error
|= driver_create_file(&drv
->driver
, &driver_attr_nonidx_addr
);
1172 error
|= driver_create_file(&drv
->driver
, &driver_attr_nonidx_data
);
1173 error
|= driver_create_file(&drv
->driver
, &driver_attr_idx_addr
);
1174 error
|= driver_create_file(&drv
->driver
, &driver_attr_idx_data
);
1175 error
|= driver_create_file(&drv
->driver
, &driver_attr_wqm_quanta
);
1179 static void nes_remove_driver_sysfs(struct pci_driver
*drv
)
1181 driver_remove_file(&drv
->driver
, &driver_attr_adapter
);
1182 driver_remove_file(&drv
->driver
, &driver_attr_eeprom_cmd
);
1183 driver_remove_file(&drv
->driver
, &driver_attr_eeprom_data
);
1184 driver_remove_file(&drv
->driver
, &driver_attr_flash_cmd
);
1185 driver_remove_file(&drv
->driver
, &driver_attr_flash_data
);
1186 driver_remove_file(&drv
->driver
, &driver_attr_nonidx_addr
);
1187 driver_remove_file(&drv
->driver
, &driver_attr_nonidx_data
);
1188 driver_remove_file(&drv
->driver
, &driver_attr_idx_addr
);
1189 driver_remove_file(&drv
->driver
, &driver_attr_idx_data
);
1190 driver_remove_file(&drv
->driver
, &driver_attr_wqm_quanta
);
1194 * nes_init_module - module initialization entry point
1196 static int __init
nes_init_module(void)
1201 retval
= nes_cm_start();
1203 printk(KERN_ERR PFX
"Unable to start NetEffect iWARP CM.\n");
1206 retval
= pci_register_driver(&nes_pci_driver
);
1208 retval1
= nes_create_driver_sysfs(&nes_pci_driver
);
1210 printk(KERN_ERR PFX
"Unable to create NetEffect sys files.\n");
1217 * nes_exit_module - module unload entry point
1219 static void __exit
nes_exit_module(void)
1222 nes_remove_driver_sysfs(&nes_pci_driver
);
1224 pci_unregister_driver(&nes_pci_driver
);
1228 module_init(nes_init_module
);
1229 module_exit(nes_exit_module
);