2
* rrunner.c: Linux driver for the Essential RoadRunner HIPPI board.
4
* Copyright (C) 1998-2002 by Jes Sorensen, <jes@wildopensource.com>.
6
* Thanks to Essential Communication for providing us with hardware
7
* and very comprehensive documentation without which I would not have
8
* been able to write this driver. A special thank you to John Gibbon
9
* for sorting out the legal issues, with the NDA, allowing the code to
10
* be released under the GPL.
12
* This program is free software; you can redistribute it and/or modify
13
* it under the terms of the GNU General Public License as published by
14
* the Free Software Foundation; either version 2 of the License, or
15
* (at your option) any later version.
17
* Thanks to Jayaram Bhat from ODS/Essential for fixing some of the
18
* stupid bugs in my code.
20
* Softnet support and various other patches from Val Henson of
23
* PCI DMA mapping code partly based on work by Francois Romieu.
28
#define RX_DMA_SKBUFF 1
29
#define PKT_COPY_THRESHOLD 512
31
#include <linux/module.h>
32
#include <linux/types.h>
33
#include <linux/errno.h>
34
#include <linux/ioport.h>
35
#include <linux/pci.h>
36
#include <linux/kernel.h>
37
#include <linux/netdevice.h>
38
#include <linux/hippidevice.h>
39
#include <linux/skbuff.h>
40
#include <linux/init.h>
41
#include <linux/delay.h>
43
#include <linux/slab.h>
46
#include <asm/system.h>
47
#include <asm/cache.h>
48
#include <asm/byteorder.h>
51
#include <asm/uaccess.h>
53
#define rr_if_busy(dev) netif_queue_stopped(dev)
54
#define rr_if_running(dev) netif_running(dev)
58
#define RUN_AT(x) (jiffies + (x))
61
MODULE_AUTHOR("Jes Sorensen <jes@wildopensource.com>");
62
MODULE_DESCRIPTION("Essential RoadRunner HIPPI driver");
63
MODULE_LICENSE("GPL");
65
static char version[] __devinitdata = "rrunner.c: v0.50 11/11/2002 Jes Sorensen (jes@wildopensource.com)\n";
68
static const struct net_device_ops rr_netdev_ops = {
71
.ndo_do_ioctl = rr_ioctl,
72
.ndo_start_xmit = rr_start_xmit,
73
.ndo_change_mtu = hippi_change_mtu,
74
.ndo_set_mac_address = hippi_mac_addr,
78
* Implementation notes:
80
* The DMA engine only allows for DMA within physical 64KB chunks of
81
* memory. The current approach of the driver (and stack) is to use
82
* linear blocks of memory for the skbuffs. However, as the data block
83
* is always the first part of the skb and skbs are 2^n aligned so we
84
* are guarantted to get the whole block within one 64KB align 64KB
87
* On the long term, relying on being able to allocate 64KB linear
88
* chunks of memory is not feasible and the skb handling code and the
89
* stack will need to know about I/O vectors or something similar.
92
static int __devinit rr_init_one(struct pci_dev *pdev,
93
const struct pci_device_id *ent)
95
struct net_device *dev;
96
static int version_disp;
98
struct rr_private *rrpriv;
103
dev = alloc_hippi_dev(sizeof(struct rr_private));
107
ret = pci_enable_device(pdev);
113
rrpriv = netdev_priv(dev);
115
SET_NETDEV_DEV(dev, &pdev->dev);
117
if (pci_request_regions(pdev, "rrunner")) {
122
pci_set_drvdata(pdev, dev);
124
rrpriv->pci_dev = pdev;
126
spin_lock_init(&rrpriv->lock);
128
dev->irq = pdev->irq;
129
dev->netdev_ops = &rr_netdev_ops;
131
dev->base_addr = pci_resource_start(pdev, 0);
133
/* display version info if adapter is found */
135
/* set display flag to TRUE so that */
136
/* we only display this string ONCE */
141
pci_read_config_byte(pdev, PCI_LATENCY_TIMER, &pci_latency);
142
if (pci_latency <= 0x58){
144
pci_write_config_byte(pdev, PCI_LATENCY_TIMER, pci_latency);
147
pci_set_master(pdev);
149
printk(KERN_INFO "%s: Essential RoadRunner serial HIPPI "
150
"at 0x%08lx, irq %i, PCI latency %i\n", dev->name,
151
dev->base_addr, dev->irq, pci_latency);
154
* Remap the regs into kernel space.
157
rrpriv->regs = ioremap(dev->base_addr, 0x1000);
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printk(KERN_ERR "%s: Unable to map I/O register, "
161
"RoadRunner will be disabled.\n", dev->name);
166
tmpptr = pci_alloc_consistent(pdev, TX_TOTAL_SIZE, &ring_dma);
167
rrpriv->tx_ring = tmpptr;
168
rrpriv->tx_ring_dma = ring_dma;
175
tmpptr = pci_alloc_consistent(pdev, RX_TOTAL_SIZE, &ring_dma);
176
rrpriv->rx_ring = tmpptr;
177
rrpriv->rx_ring_dma = ring_dma;
184
tmpptr = pci_alloc_consistent(pdev, EVT_RING_SIZE, &ring_dma);
185
rrpriv->evt_ring = tmpptr;
186
rrpriv->evt_ring_dma = ring_dma;
194
* Don't access any register before this point!
197
writel(readl(&rrpriv->regs->HostCtrl) | NO_SWAP,
198
&rrpriv->regs->HostCtrl);
201
* Need to add a case for little-endian 64-bit hosts here.
208
ret = register_netdev(dev);
215
pci_free_consistent(pdev, RX_TOTAL_SIZE, rrpriv->rx_ring,
216
rrpriv->rx_ring_dma);
218
pci_free_consistent(pdev, TX_TOTAL_SIZE, rrpriv->tx_ring,
219
rrpriv->tx_ring_dma);
221
iounmap(rrpriv->regs);
223
pci_release_regions(pdev);
224
pci_set_drvdata(pdev, NULL);
232
static void __devexit rr_remove_one (struct pci_dev *pdev)
234
struct net_device *dev = pci_get_drvdata(pdev);
237
struct rr_private *rr = netdev_priv(dev);
239
if (!(readl(&rr->regs->HostCtrl) & NIC_HALTED)){
240
printk(KERN_ERR "%s: trying to unload running NIC\n",
242
writel(HALT_NIC, &rr->regs->HostCtrl);
245
pci_free_consistent(pdev, EVT_RING_SIZE, rr->evt_ring,
247
pci_free_consistent(pdev, RX_TOTAL_SIZE, rr->rx_ring,
249
pci_free_consistent(pdev, TX_TOTAL_SIZE, rr->tx_ring,
251
unregister_netdev(dev);
254
pci_release_regions(pdev);
255
pci_disable_device(pdev);
256
pci_set_drvdata(pdev, NULL);
262
* Commands are considered to be slow, thus there is no reason to
265
static void rr_issue_cmd(struct rr_private *rrpriv, struct cmd *cmd)
267
struct rr_regs __iomem *regs;
272
* This is temporary - it will go away in the final version.
273
* We probably also want to make this function inline.
275
if (readl(®s->HostCtrl) & NIC_HALTED){
276
printk("issuing command for halted NIC, code 0x%x, "
277
"HostCtrl %08x\n", cmd->code, readl(®s->HostCtrl));
278
if (readl(®s->Mode) & FATAL_ERR)
279
printk("error codes Fail1 %02x, Fail2 %02x\n",
280
readl(®s->Fail1), readl(®s->Fail2));
283
idx = rrpriv->info->cmd_ctrl.pi;
285
writel(*(u32*)(cmd), ®s->CmdRing[idx]);
288
idx = (idx - 1) % CMD_RING_ENTRIES;
289
rrpriv->info->cmd_ctrl.pi = idx;
292
if (readl(®s->Mode) & FATAL_ERR)
293
printk("error code %02x\n", readl(®s->Fail1));
298
* Reset the board in a sensible manner. The NIC is already halted
299
* when we get here and a spin-lock is held.
301
static int rr_reset(struct net_device *dev)
303
struct rr_private *rrpriv;
304
struct rr_regs __iomem *regs;
308
rrpriv = netdev_priv(dev);
311
rr_load_firmware(dev);
313
writel(0x01000000, ®s->TX_state);
314
writel(0xff800000, ®s->RX_state);
315
writel(0, ®s->AssistState);
316
writel(CLEAR_INTA, ®s->LocalCtrl);
317
writel(0x01, ®s->BrkPt);
318
writel(0, ®s->Timer);
319
writel(0, ®s->TimerRef);
320
writel(RESET_DMA, ®s->DmaReadState);
321
writel(RESET_DMA, ®s->DmaWriteState);
322
writel(0, ®s->DmaWriteHostHi);
323
writel(0, ®s->DmaWriteHostLo);
324
writel(0, ®s->DmaReadHostHi);
325
writel(0, ®s->DmaReadHostLo);
326
writel(0, ®s->DmaReadLen);
327
writel(0, ®s->DmaWriteLen);
328
writel(0, ®s->DmaWriteLcl);
329
writel(0, ®s->DmaWriteIPchecksum);
330
writel(0, ®s->DmaReadLcl);
331
writel(0, ®s->DmaReadIPchecksum);
332
writel(0, ®s->PciState);
333
#if (BITS_PER_LONG == 64) && defined __LITTLE_ENDIAN
334
writel(SWAP_DATA | PTR64BIT | PTR_WD_SWAP, ®s->Mode);
335
#elif (BITS_PER_LONG == 64)
336
writel(SWAP_DATA | PTR64BIT | PTR_WD_NOSWAP, ®s->Mode);
338
writel(SWAP_DATA | PTR32BIT | PTR_WD_NOSWAP, ®s->Mode);
343
* Don't worry, this is just black magic.
345
writel(0xdf000, ®s->RxBase);
346
writel(0xdf000, ®s->RxPrd);
347
writel(0xdf000, ®s->RxCon);
348
writel(0xce000, ®s->TxBase);
349
writel(0xce000, ®s->TxPrd);
350
writel(0xce000, ®s->TxCon);
351
writel(0, ®s->RxIndPro);
352
writel(0, ®s->RxIndCon);
353
writel(0, ®s->RxIndRef);
354
writel(0, ®s->TxIndPro);
355
writel(0, ®s->TxIndCon);
356
writel(0, ®s->TxIndRef);
357
writel(0xcc000, ®s->pad10[0]);
358
writel(0, ®s->DrCmndPro);
359
writel(0, ®s->DrCmndCon);
360
writel(0, ®s->DwCmndPro);
361
writel(0, ®s->DwCmndCon);
362
writel(0, ®s->DwCmndRef);
363
writel(0, ®s->DrDataPro);
364
writel(0, ®s->DrDataCon);
365
writel(0, ®s->DrDataRef);
366
writel(0, ®s->DwDataPro);
367
writel(0, ®s->DwDataCon);
368
writel(0, ®s->DwDataRef);
371
writel(0xffffffff, ®s->MbEvent);
372
writel(0, ®s->Event);
374
writel(0, ®s->TxPi);
375
writel(0, ®s->IpRxPi);
377
writel(0, ®s->EvtCon);
378
writel(0, ®s->EvtPrd);
380
rrpriv->info->evt_ctrl.pi = 0;
382
for (i = 0; i < CMD_RING_ENTRIES; i++)
383
writel(0, ®s->CmdRing[i]);
386
* Why 32 ? is this not cache line size dependent?
388
writel(RBURST_64|WBURST_64, ®s->PciState);
391
start_pc = rr_read_eeprom_word(rrpriv,
392
offsetof(struct eeprom, rncd_info.FwStart));
395
printk("%s: Executing firmware at address 0x%06x\n",
396
dev->name, start_pc);
399
writel(start_pc + 0x800, ®s->Pc);
403
writel(start_pc, ®s->Pc);
411
* Read a string from the EEPROM.
413
static unsigned int rr_read_eeprom(struct rr_private *rrpriv,
414
unsigned long offset,
416
unsigned long length)
418
struct rr_regs __iomem *regs = rrpriv->regs;
419
u32 misc, io, host, i;
421
io = readl(®s->ExtIo);
422
writel(0, ®s->ExtIo);
423
misc = readl(®s->LocalCtrl);
424
writel(0, ®s->LocalCtrl);
425
host = readl(®s->HostCtrl);
426
writel(host | HALT_NIC, ®s->HostCtrl);
429
for (i = 0; i < length; i++){
430
writel((EEPROM_BASE + ((offset+i) << 3)), ®s->WinBase);
432
buf[i] = (readl(®s->WinData) >> 24) & 0xff;
436
writel(host, ®s->HostCtrl);
437
writel(misc, ®s->LocalCtrl);
438
writel(io, ®s->ExtIo);
445
* Shortcut to read one word (4 bytes) out of the EEPROM and convert
446
* it to our CPU byte-order.
448
static u32 rr_read_eeprom_word(struct rr_private *rrpriv,
453
if ((rr_read_eeprom(rrpriv, offset,
454
(unsigned char *)&word, 4) == 4))
455
return be32_to_cpu(word);
461
* Write a string to the EEPROM.
463
* This is only called when the firmware is not running.
465
static unsigned int write_eeprom(struct rr_private *rrpriv,
466
unsigned long offset,
468
unsigned long length)
470
struct rr_regs __iomem *regs = rrpriv->regs;
471
u32 misc, io, data, i, j, ready, error = 0;
473
io = readl(®s->ExtIo);
474
writel(0, ®s->ExtIo);
475
misc = readl(®s->LocalCtrl);
476
writel(ENABLE_EEPROM_WRITE, ®s->LocalCtrl);
479
for (i = 0; i < length; i++){
480
writel((EEPROM_BASE + ((offset+i) << 3)), ®s->WinBase);
484
* Only try to write the data if it is not the same
487
if ((readl(®s->WinData) & 0xff000000) != data){
488
writel(data, ®s->WinData);
494
if ((readl(®s->WinData) & 0xff000000) ==
499
printk("data mismatch: %08x, "
500
"WinData %08x\n", data,
501
readl(®s->WinData));
509
writel(misc, ®s->LocalCtrl);
510
writel(io, ®s->ExtIo);
517
static int __devinit rr_init(struct net_device *dev)
519
struct rr_private *rrpriv;
520
struct rr_regs __iomem *regs;
523
rrpriv = netdev_priv(dev);
526
rev = readl(®s->FwRev);
527
rrpriv->fw_rev = rev;
528
if (rev > 0x00020024)
529
printk(" Firmware revision: %i.%i.%i\n", (rev >> 16),
530
((rev >> 8) & 0xff), (rev & 0xff));
531
else if (rev >= 0x00020000) {
532
printk(" Firmware revision: %i.%i.%i (2.0.37 or "
533
"later is recommended)\n", (rev >> 16),
534
((rev >> 8) & 0xff), (rev & 0xff));
536
printk(" Firmware revision too old: %i.%i.%i, please "
537
"upgrade to 2.0.37 or later.\n",
538
(rev >> 16), ((rev >> 8) & 0xff), (rev & 0xff));
542
printk(" Maximum receive rings %i\n", readl(®s->MaxRxRng));
546
* Read the hardware address from the eeprom. The HW address
547
* is not really necessary for HIPPI but awfully convenient.
548
* The pointer arithmetic to put it in dev_addr is ugly, but
549
* Donald Becker does it this way for the GigE version of this
550
* card and it's shorter and more portable than any
551
* other method I've seen. -VAL
554
*(__be16 *)(dev->dev_addr) =
555
htons(rr_read_eeprom_word(rrpriv, offsetof(struct eeprom, manf.BoardULA)));
556
*(__be32 *)(dev->dev_addr+2) =
557
htonl(rr_read_eeprom_word(rrpriv, offsetof(struct eeprom, manf.BoardULA[4])));
559
printk(" MAC: %pM\n", dev->dev_addr);
561
sram_size = rr_read_eeprom_word(rrpriv, 8);
562
printk(" SRAM size 0x%06x\n", sram_size);
568
static int rr_init1(struct net_device *dev)
570
struct rr_private *rrpriv;
571
struct rr_regs __iomem *regs;
572
unsigned long myjif, flags;
578
rrpriv = netdev_priv(dev);
581
spin_lock_irqsave(&rrpriv->lock, flags);
583
hostctrl = readl(®s->HostCtrl);
584
writel(hostctrl | HALT_NIC | RR_CLEAR_INT, ®s->HostCtrl);
587
if (hostctrl & PARITY_ERR){
588
printk("%s: Parity error halting NIC - this is serious!\n",
590
spin_unlock_irqrestore(&rrpriv->lock, flags);
595
set_rxaddr(regs, rrpriv->rx_ctrl_dma);
596
set_infoaddr(regs, rrpriv->info_dma);
598
rrpriv->info->evt_ctrl.entry_size = sizeof(struct event);
599
rrpriv->info->evt_ctrl.entries = EVT_RING_ENTRIES;
600
rrpriv->info->evt_ctrl.mode = 0;
601
rrpriv->info->evt_ctrl.pi = 0;
602
set_rraddr(&rrpriv->info->evt_ctrl.rngptr, rrpriv->evt_ring_dma);
604
rrpriv->info->cmd_ctrl.entry_size = sizeof(struct cmd);
605
rrpriv->info->cmd_ctrl.entries = CMD_RING_ENTRIES;
606
rrpriv->info->cmd_ctrl.mode = 0;
607
rrpriv->info->cmd_ctrl.pi = 15;
609
for (i = 0; i < CMD_RING_ENTRIES; i++) {
610
writel(0, ®s->CmdRing[i]);
613
for (i = 0; i < TX_RING_ENTRIES; i++) {
614
rrpriv->tx_ring[i].size = 0;
615
set_rraddr(&rrpriv->tx_ring[i].addr, 0);
616
rrpriv->tx_skbuff[i] = NULL;
618
rrpriv->info->tx_ctrl.entry_size = sizeof(struct tx_desc);
619
rrpriv->info->tx_ctrl.entries = TX_RING_ENTRIES;
620
rrpriv->info->tx_ctrl.mode = 0;
621
rrpriv->info->tx_ctrl.pi = 0;
622
set_rraddr(&rrpriv->info->tx_ctrl.rngptr, rrpriv->tx_ring_dma);
625
* Set dirty_tx before we start receiving interrupts, otherwise
626
* the interrupt handler might think it is supposed to process
627
* tx ints before we are up and running, which may cause a null
628
* pointer access in the int handler.
632
rrpriv->dirty_rx = rrpriv->dirty_tx = 0;
637
writel(0x5000, ®s->ConRetry);
638
writel(0x100, ®s->ConRetryTmr);
639
writel(0x500000, ®s->ConTmout);
640
writel(0x60, ®s->IntrTmr);
641
writel(0x500000, ®s->TxDataMvTimeout);
642
writel(0x200000, ®s->RxDataMvTimeout);
643
writel(0x80, ®s->WriteDmaThresh);
644
writel(0x80, ®s->ReadDmaThresh);
646
rrpriv->fw_running = 0;
649
hostctrl &= ~(HALT_NIC | INVALID_INST_B | PARITY_ERR);
650
writel(hostctrl, ®s->HostCtrl);
653
spin_unlock_irqrestore(&rrpriv->lock, flags);
655
for (i = 0; i < RX_RING_ENTRIES; i++) {
659
rrpriv->rx_ring[i].mode = 0;
660
skb = alloc_skb(dev->mtu + HIPPI_HLEN, GFP_ATOMIC);
662
printk(KERN_WARNING "%s: Unable to allocate memory "
663
"for receive ring - halting NIC\n", dev->name);
667
rrpriv->rx_skbuff[i] = skb;
668
addr = pci_map_single(rrpriv->pci_dev, skb->data,
669
dev->mtu + HIPPI_HLEN, PCI_DMA_FROMDEVICE);
671
* Sanity test to see if we conflict with the DMA
672
* limitations of the Roadrunner.
674
if ((((unsigned long)skb->data) & 0xfff) > ~65320)
675
printk("skb alloc error\n");
677
set_rraddr(&rrpriv->rx_ring[i].addr, addr);
678
rrpriv->rx_ring[i].size = dev->mtu + HIPPI_HLEN;
681
rrpriv->rx_ctrl[4].entry_size = sizeof(struct rx_desc);
682
rrpriv->rx_ctrl[4].entries = RX_RING_ENTRIES;
683
rrpriv->rx_ctrl[4].mode = 8;
684
rrpriv->rx_ctrl[4].pi = 0;
686
set_rraddr(&rrpriv->rx_ctrl[4].rngptr, rrpriv->rx_ring_dma);
691
* Now start the FirmWare.
693
cmd.code = C_START_FW;
697
rr_issue_cmd(rrpriv, &cmd);
700
* Give the FirmWare time to chew on the `get running' command.
702
myjif = jiffies + 5 * HZ;
703
while (time_before(jiffies, myjif) && !rrpriv->fw_running)
706
netif_start_queue(dev);
712
* We might have gotten here because we are out of memory,
713
* make sure we release everything we allocated before failing
715
for (i = 0; i < RX_RING_ENTRIES; i++) {
716
struct sk_buff *skb = rrpriv->rx_skbuff[i];
719
pci_unmap_single(rrpriv->pci_dev,
720
rrpriv->rx_ring[i].addr.addrlo,
721
dev->mtu + HIPPI_HLEN,
723
rrpriv->rx_ring[i].size = 0;
724
set_rraddr(&rrpriv->rx_ring[i].addr, 0);
726
rrpriv->rx_skbuff[i] = NULL;
734
* All events are considered to be slow (RX/TX ints do not generate
735
* events) and are handled here, outside the main interrupt handler,
736
* to reduce the size of the handler.
738
static u32 rr_handle_event(struct net_device *dev, u32 prodidx, u32 eidx)
740
struct rr_private *rrpriv;
741
struct rr_regs __iomem *regs;
744
rrpriv = netdev_priv(dev);
747
while (prodidx != eidx){
748
switch (rrpriv->evt_ring[eidx].code){
750
tmp = readl(®s->FwRev);
751
printk(KERN_INFO "%s: Firmware revision %i.%i.%i "
752
"up and running\n", dev->name,
753
(tmp >> 16), ((tmp >> 8) & 0xff), (tmp & 0xff));
754
rrpriv->fw_running = 1;
755
writel(RX_RING_ENTRIES - 1, ®s->IpRxPi);
759
printk(KERN_INFO "%s: Optical link ON\n", dev->name);
762
printk(KERN_INFO "%s: Optical link OFF\n", dev->name);
765
printk(KERN_WARNING "%s: RX data not moving\n",
769
printk(KERN_INFO "%s: The watchdog is here to see "
773
printk(KERN_ERR "%s: HIPPI Internal NIC error\n",
775
writel(readl(®s->HostCtrl)|HALT_NIC|RR_CLEAR_INT,
780
printk(KERN_ERR "%s: Host software error\n",
782
writel(readl(®s->HostCtrl)|HALT_NIC|RR_CLEAR_INT,
790
printk(KERN_WARNING "%s: Connection rejected\n",
792
dev->stats.tx_aborted_errors++;
795
printk(KERN_WARNING "%s: Connection timeout\n",
799
printk(KERN_WARNING "%s: HIPPI disconnect error\n",
801
dev->stats.tx_aborted_errors++;
804
printk(KERN_ERR "%s: HIPPI Internal Parity error\n",
806
writel(readl(®s->HostCtrl)|HALT_NIC|RR_CLEAR_INT,
811
printk(KERN_WARNING "%s: Transmitter idle\n",
815
printk(KERN_WARNING "%s: Link lost during transmit\n",
817
dev->stats.tx_aborted_errors++;
818
writel(readl(®s->HostCtrl)|HALT_NIC|RR_CLEAR_INT,
823
printk(KERN_ERR "%s: Invalid send ring block\n",
825
writel(readl(®s->HostCtrl)|HALT_NIC|RR_CLEAR_INT,
830
printk(KERN_ERR "%s: Invalid send buffer address\n",
832
writel(readl(®s->HostCtrl)|HALT_NIC|RR_CLEAR_INT,
837
printk(KERN_ERR "%s: Invalid descriptor address\n",
839
writel(readl(®s->HostCtrl)|HALT_NIC|RR_CLEAR_INT,
847
printk(KERN_INFO "%s: Receive ring full\n", dev->name);
851
printk(KERN_WARNING "%s: Receive parity error\n",
855
printk(KERN_WARNING "%s: Receive LLRC error\n",
859
printk(KERN_WARNING "%s: Receive packet length "
860
"error\n", dev->name);
863
printk(KERN_WARNING "%s: Data checksum error\n",
867
printk(KERN_WARNING "%s: Unexpected short burst "
868
"error\n", dev->name);
871
printk(KERN_WARNING "%s: Recv. state transition"
872
" error\n", dev->name);
875
printk(KERN_WARNING "%s: Unexpected data error\n",
879
printk(KERN_WARNING "%s: Link lost error\n",
883
printk(KERN_WARNING "%s: Framming Error\n",
887
printk(KERN_WARNING "%s: Flag sync. lost during "
888
"packet\n", dev->name);
891
printk(KERN_ERR "%s: Invalid receive buffer "
892
"address\n", dev->name);
893
writel(readl(®s->HostCtrl)|HALT_NIC|RR_CLEAR_INT,
898
printk(KERN_ERR "%s: Invalid receive descriptor "
899
"address\n", dev->name);
900
writel(readl(®s->HostCtrl)|HALT_NIC|RR_CLEAR_INT,
905
printk(KERN_ERR "%s: Invalid ring block\n",
907
writel(readl(®s->HostCtrl)|HALT_NIC|RR_CLEAR_INT,
912
/* Label packet to be dropped.
913
* Actual dropping occurs in rx
916
* The index of packet we get to drop is
917
* the index of the packet following
918
* the bad packet. -kbf
921
u16 index = rrpriv->evt_ring[eidx].index;
922
index = (index + (RX_RING_ENTRIES - 1)) %
924
rrpriv->rx_ring[index].mode |=
925
(PACKET_BAD | PACKET_END);
929
printk(KERN_WARNING "%s: Unhandled event 0x%02x\n",
930
dev->name, rrpriv->evt_ring[eidx].code);
932
eidx = (eidx + 1) % EVT_RING_ENTRIES;
935
rrpriv->info->evt_ctrl.pi = eidx;
941
static void rx_int(struct net_device *dev, u32 rxlimit, u32 index)
943
struct rr_private *rrpriv = netdev_priv(dev);
944
struct rr_regs __iomem *regs = rrpriv->regs;
947
struct rx_desc *desc;
950
desc = &(rrpriv->rx_ring[index]);
951
pkt_len = desc->size;
953
printk("index %i, rxlimit %i\n", index, rxlimit);
954
printk("len %x, mode %x\n", pkt_len, desc->mode);
956
if ( (rrpriv->rx_ring[index].mode & PACKET_BAD) == PACKET_BAD){
957
dev->stats.rx_dropped++;
962
struct sk_buff *skb, *rx_skb;
964
rx_skb = rrpriv->rx_skbuff[index];
966
if (pkt_len < PKT_COPY_THRESHOLD) {
967
skb = alloc_skb(pkt_len, GFP_ATOMIC);
969
printk(KERN_WARNING "%s: Unable to allocate skb (%i bytes), deferring packet\n", dev->name, pkt_len);
970
dev->stats.rx_dropped++;
973
pci_dma_sync_single_for_cpu(rrpriv->pci_dev,
978
memcpy(skb_put(skb, pkt_len),
979
rx_skb->data, pkt_len);
981
pci_dma_sync_single_for_device(rrpriv->pci_dev,
987
struct sk_buff *newskb;
989
newskb = alloc_skb(dev->mtu + HIPPI_HLEN,
994
pci_unmap_single(rrpriv->pci_dev,
995
desc->addr.addrlo, dev->mtu +
996
HIPPI_HLEN, PCI_DMA_FROMDEVICE);
998
skb_put(skb, pkt_len);
999
rrpriv->rx_skbuff[index] = newskb;
1000
addr = pci_map_single(rrpriv->pci_dev,
1002
dev->mtu + HIPPI_HLEN,
1003
PCI_DMA_FROMDEVICE);
1004
set_rraddr(&desc->addr, addr);
1006
printk("%s: Out of memory, deferring "
1007
"packet\n", dev->name);
1008
dev->stats.rx_dropped++;
1012
skb->protocol = hippi_type_trans(skb, dev);
1014
netif_rx(skb); /* send it up */
1016
dev->stats.rx_packets++;
1017
dev->stats.rx_bytes += pkt_len;
1021
desc->size = dev->mtu + HIPPI_HLEN;
1023
if ((index & 7) == 7)
1024
writel(index, ®s->IpRxPi);
1026
index = (index + 1) % RX_RING_ENTRIES;
1027
} while(index != rxlimit);
1029
rrpriv->cur_rx = index;
1034
static irqreturn_t rr_interrupt(int irq, void *dev_id)
1036
struct rr_private *rrpriv;
1037
struct rr_regs __iomem *regs;
1038
struct net_device *dev = (struct net_device *)dev_id;
1039
u32 prodidx, rxindex, eidx, txcsmr, rxlimit, txcon;
1041
rrpriv = netdev_priv(dev);
1042
regs = rrpriv->regs;
1044
if (!(readl(®s->HostCtrl) & RR_INT))
1047
spin_lock(&rrpriv->lock);
1049
prodidx = readl(®s->EvtPrd);
1050
txcsmr = (prodidx >> 8) & 0xff;
1051
rxlimit = (prodidx >> 16) & 0xff;
1055
printk("%s: interrupt, prodidx = %i, eidx = %i\n", dev->name,
1056
prodidx, rrpriv->info->evt_ctrl.pi);
1059
* Order here is important. We must handle events
1060
* before doing anything else in order to catch
1061
* such things as LLRC errors, etc -kbf
1064
eidx = rrpriv->info->evt_ctrl.pi;
1065
if (prodidx != eidx)
1066
eidx = rr_handle_event(dev, prodidx, eidx);
1068
rxindex = rrpriv->cur_rx;
1069
if (rxindex != rxlimit)
1070
rx_int(dev, rxlimit, rxindex);
1072
txcon = rrpriv->dirty_tx;
1073
if (txcsmr != txcon) {
1075
/* Due to occational firmware TX producer/consumer out
1076
* of sync. error need to check entry in ring -kbf
1078
if(rrpriv->tx_skbuff[txcon]){
1079
struct tx_desc *desc;
1080
struct sk_buff *skb;
1082
desc = &(rrpriv->tx_ring[txcon]);
1083
skb = rrpriv->tx_skbuff[txcon];
1085
dev->stats.tx_packets++;
1086
dev->stats.tx_bytes += skb->len;
1088
pci_unmap_single(rrpriv->pci_dev,
1089
desc->addr.addrlo, skb->len,
1091
dev_kfree_skb_irq(skb);
1093
rrpriv->tx_skbuff[txcon] = NULL;
1095
set_rraddr(&rrpriv->tx_ring[txcon].addr, 0);
1098
txcon = (txcon + 1) % TX_RING_ENTRIES;
1099
} while (txcsmr != txcon);
1102
rrpriv->dirty_tx = txcon;
1103
if (rrpriv->tx_full && rr_if_busy(dev) &&
1104
(((rrpriv->info->tx_ctrl.pi + 1) % TX_RING_ENTRIES)
1105
!= rrpriv->dirty_tx)){
1106
rrpriv->tx_full = 0;
1107
netif_wake_queue(dev);
1111
eidx |= ((txcsmr << 8) | (rxlimit << 16));
1112
writel(eidx, ®s->EvtCon);
1115
spin_unlock(&rrpriv->lock);
1119
static inline void rr_raz_tx(struct rr_private *rrpriv,
1120
struct net_device *dev)
1124
for (i = 0; i < TX_RING_ENTRIES; i++) {
1125
struct sk_buff *skb = rrpriv->tx_skbuff[i];
1128
struct tx_desc *desc = &(rrpriv->tx_ring[i]);
1130
pci_unmap_single(rrpriv->pci_dev, desc->addr.addrlo,
1131
skb->len, PCI_DMA_TODEVICE);
1133
set_rraddr(&desc->addr, 0);
1135
rrpriv->tx_skbuff[i] = NULL;
1141
static inline void rr_raz_rx(struct rr_private *rrpriv,
1142
struct net_device *dev)
1146
for (i = 0; i < RX_RING_ENTRIES; i++) {
1147
struct sk_buff *skb = rrpriv->rx_skbuff[i];
1150
struct rx_desc *desc = &(rrpriv->rx_ring[i]);
1152
pci_unmap_single(rrpriv->pci_dev, desc->addr.addrlo,
1153
dev->mtu + HIPPI_HLEN, PCI_DMA_FROMDEVICE);
1155
set_rraddr(&desc->addr, 0);
1157
rrpriv->rx_skbuff[i] = NULL;
1162
static void rr_timer(unsigned long data)
1164
struct net_device *dev = (struct net_device *)data;
1165
struct rr_private *rrpriv = netdev_priv(dev);
1166
struct rr_regs __iomem *regs = rrpriv->regs;
1167
unsigned long flags;
1169
if (readl(®s->HostCtrl) & NIC_HALTED){
1170
printk("%s: Restarting nic\n", dev->name);
1171
memset(rrpriv->rx_ctrl, 0, 256 * sizeof(struct ring_ctrl));
1172
memset(rrpriv->info, 0, sizeof(struct rr_info));
1175
rr_raz_tx(rrpriv, dev);
1176
rr_raz_rx(rrpriv, dev);
1178
if (rr_init1(dev)) {
1179
spin_lock_irqsave(&rrpriv->lock, flags);
1180
writel(readl(®s->HostCtrl)|HALT_NIC|RR_CLEAR_INT,
1182
spin_unlock_irqrestore(&rrpriv->lock, flags);
1185
rrpriv->timer.expires = RUN_AT(5*HZ);
1186
add_timer(&rrpriv->timer);
1190
static int rr_open(struct net_device *dev)
1192
struct rr_private *rrpriv = netdev_priv(dev);
1193
struct pci_dev *pdev = rrpriv->pci_dev;
1194
struct rr_regs __iomem *regs;
1196
unsigned long flags;
1197
dma_addr_t dma_addr;
1199
regs = rrpriv->regs;
1201
if (rrpriv->fw_rev < 0x00020000) {
1202
printk(KERN_WARNING "%s: trying to configure device with "
1203
"obsolete firmware\n", dev->name);
1208
rrpriv->rx_ctrl = pci_alloc_consistent(pdev,
1209
256 * sizeof(struct ring_ctrl),
1211
if (!rrpriv->rx_ctrl) {
1215
rrpriv->rx_ctrl_dma = dma_addr;
1216
memset(rrpriv->rx_ctrl, 0, 256*sizeof(struct ring_ctrl));
1218
rrpriv->info = pci_alloc_consistent(pdev, sizeof(struct rr_info),
1220
if (!rrpriv->info) {
1224
rrpriv->info_dma = dma_addr;
1225
memset(rrpriv->info, 0, sizeof(struct rr_info));
1228
spin_lock_irqsave(&rrpriv->lock, flags);
1229
writel(readl(®s->HostCtrl)|HALT_NIC|RR_CLEAR_INT, ®s->HostCtrl);
1230
readl(®s->HostCtrl);
1231
spin_unlock_irqrestore(&rrpriv->lock, flags);
1233
if (request_irq(dev->irq, rr_interrupt, IRQF_SHARED, dev->name, dev)) {
1234
printk(KERN_WARNING "%s: Requested IRQ %d is busy\n",
1235
dev->name, dev->irq);
1240
if ((ecode = rr_init1(dev)))
1243
/* Set the timer to switch to check for link beat and perhaps switch
1244
to an alternate media type. */
1245
init_timer(&rrpriv->timer);
1246
rrpriv->timer.expires = RUN_AT(5*HZ); /* 5 sec. watchdog */
1247
rrpriv->timer.data = (unsigned long)dev;
1248
rrpriv->timer.function = rr_timer; /* timer handler */
1249
add_timer(&rrpriv->timer);
1251
netif_start_queue(dev);
1256
spin_lock_irqsave(&rrpriv->lock, flags);
1257
writel(readl(®s->HostCtrl)|HALT_NIC|RR_CLEAR_INT, ®s->HostCtrl);
1258
spin_unlock_irqrestore(&rrpriv->lock, flags);
1261
pci_free_consistent(pdev, sizeof(struct rr_info), rrpriv->info,
1263
rrpriv->info = NULL;
1265
if (rrpriv->rx_ctrl) {
1266
pci_free_consistent(pdev, sizeof(struct ring_ctrl),
1267
rrpriv->rx_ctrl, rrpriv->rx_ctrl_dma);
1268
rrpriv->rx_ctrl = NULL;
1271
netif_stop_queue(dev);
1277
static void rr_dump(struct net_device *dev)
1279
struct rr_private *rrpriv;
1280
struct rr_regs __iomem *regs;
1285
rrpriv = netdev_priv(dev);
1286
regs = rrpriv->regs;
1288
printk("%s: dumping NIC TX rings\n", dev->name);
1290
printk("RxPrd %08x, TxPrd %02x, EvtPrd %08x, TxPi %02x, TxCtrlPi %02x\n",
1291
readl(®s->RxPrd), readl(®s->TxPrd),
1292
readl(®s->EvtPrd), readl(®s->TxPi),
1293
rrpriv->info->tx_ctrl.pi);
1295
printk("Error code 0x%x\n", readl(®s->Fail1));
1297
index = (((readl(®s->EvtPrd) >> 8) & 0xff) - 1) % TX_RING_ENTRIES;
1298
cons = rrpriv->dirty_tx;
1299
printk("TX ring index %i, TX consumer %i\n",
1302
if (rrpriv->tx_skbuff[index]){
1303
len = min_t(int, 0x80, rrpriv->tx_skbuff[index]->len);
1304
printk("skbuff for index %i is valid - dumping data (0x%x bytes - DMA len 0x%x)\n", index, len, rrpriv->tx_ring[index].size);
1305
for (i = 0; i < len; i++){
1308
printk("%02x ", (unsigned char) rrpriv->tx_skbuff[index]->data[i]);
1313
if (rrpriv->tx_skbuff[cons]){
1314
len = min_t(int, 0x80, rrpriv->tx_skbuff[cons]->len);
1315
printk("skbuff for cons %i is valid - dumping data (0x%x bytes - skbuff len 0x%x)\n", cons, len, rrpriv->tx_skbuff[cons]->len);
1316
printk("mode 0x%x, size 0x%x,\n phys %08Lx, skbuff-addr %08lx, truesize 0x%x\n",
1317
rrpriv->tx_ring[cons].mode,
1318
rrpriv->tx_ring[cons].size,
1319
(unsigned long long) rrpriv->tx_ring[cons].addr.addrlo,
1320
(unsigned long)rrpriv->tx_skbuff[cons]->data,
1321
(unsigned int)rrpriv->tx_skbuff[cons]->truesize);
1322
for (i = 0; i < len; i++){
1325
printk("%02x ", (unsigned char)rrpriv->tx_ring[cons].size);
1330
printk("dumping TX ring info:\n");
1331
for (i = 0; i < TX_RING_ENTRIES; i++)
1332
printk("mode 0x%x, size 0x%x, phys-addr %08Lx\n",
1333
rrpriv->tx_ring[i].mode,
1334
rrpriv->tx_ring[i].size,
1335
(unsigned long long) rrpriv->tx_ring[i].addr.addrlo);
1340
static int rr_close(struct net_device *dev)
1342
struct rr_private *rrpriv;
1343
struct rr_regs __iomem *regs;
1344
unsigned long flags;
1348
netif_stop_queue(dev);
1350
rrpriv = netdev_priv(dev);
1351
regs = rrpriv->regs;
1354
* Lock to make sure we are not cleaning up while another CPU
1355
* is handling interrupts.
1357
spin_lock_irqsave(&rrpriv->lock, flags);
1359
tmp = readl(®s->HostCtrl);
1360
if (tmp & NIC_HALTED){
1361
printk("%s: NIC already halted\n", dev->name);
1364
tmp |= HALT_NIC | RR_CLEAR_INT;
1365
writel(tmp, ®s->HostCtrl);
1366
readl(®s->HostCtrl);
1369
rrpriv->fw_running = 0;
1371
del_timer_sync(&rrpriv->timer);
1373
writel(0, ®s->TxPi);
1374
writel(0, ®s->IpRxPi);
1376
writel(0, ®s->EvtCon);
1377
writel(0, ®s->EvtPrd);
1379
for (i = 0; i < CMD_RING_ENTRIES; i++)
1380
writel(0, ®s->CmdRing[i]);
1382
rrpriv->info->tx_ctrl.entries = 0;
1383
rrpriv->info->cmd_ctrl.pi = 0;
1384
rrpriv->info->evt_ctrl.pi = 0;
1385
rrpriv->rx_ctrl[4].entries = 0;
1387
rr_raz_tx(rrpriv, dev);
1388
rr_raz_rx(rrpriv, dev);
1390
pci_free_consistent(rrpriv->pci_dev, 256 * sizeof(struct ring_ctrl),
1391
rrpriv->rx_ctrl, rrpriv->rx_ctrl_dma);
1392
rrpriv->rx_ctrl = NULL;
1394
pci_free_consistent(rrpriv->pci_dev, sizeof(struct rr_info),
1395
rrpriv->info, rrpriv->info_dma);
1396
rrpriv->info = NULL;
1398
free_irq(dev->irq, dev);
1399
spin_unlock_irqrestore(&rrpriv->lock, flags);
1405
static netdev_tx_t rr_start_xmit(struct sk_buff *skb,
1406
struct net_device *dev)
1408
struct rr_private *rrpriv = netdev_priv(dev);
1409
struct rr_regs __iomem *regs = rrpriv->regs;
1410
struct hippi_cb *hcb = (struct hippi_cb *) skb->cb;
1411
struct ring_ctrl *txctrl;
1412
unsigned long flags;
1413
u32 index, len = skb->len;
1415
struct sk_buff *new_skb;
1417
if (readl(®s->Mode) & FATAL_ERR)
1418
printk("error codes Fail1 %02x, Fail2 %02x\n",
1419
readl(®s->Fail1), readl(®s->Fail2));
1422
* We probably need to deal with tbusy here to prevent overruns.
1425
if (skb_headroom(skb) < 8){
1426
printk("incoming skb too small - reallocating\n");
1427
if (!(new_skb = dev_alloc_skb(len + 8))) {
1429
netif_wake_queue(dev);
1430
return NETDEV_TX_OK;
1432
skb_reserve(new_skb, 8);
1433
skb_put(new_skb, len);
1434
skb_copy_from_linear_data(skb, new_skb->data, len);
1439
ifield = (u32 *)skb_push(skb, 8);
1442
ifield[1] = hcb->ifield;
1445
* We don't need the lock before we are actually going to start
1446
* fiddling with the control blocks.
1448
spin_lock_irqsave(&rrpriv->lock, flags);
1450
txctrl = &rrpriv->info->tx_ctrl;
1454
rrpriv->tx_skbuff[index] = skb;
1455
set_rraddr(&rrpriv->tx_ring[index].addr, pci_map_single(
1456
rrpriv->pci_dev, skb->data, len + 8, PCI_DMA_TODEVICE));
1457
rrpriv->tx_ring[index].size = len + 8; /* include IFIELD */
1458
rrpriv->tx_ring[index].mode = PACKET_START | PACKET_END;
1459
txctrl->pi = (index + 1) % TX_RING_ENTRIES;
1461
writel(txctrl->pi, ®s->TxPi);
1463
if (txctrl->pi == rrpriv->dirty_tx){
1464
rrpriv->tx_full = 1;
1465
netif_stop_queue(dev);
1468
spin_unlock_irqrestore(&rrpriv->lock, flags);
1470
return NETDEV_TX_OK;
1475
* Read the firmware out of the EEPROM and put it into the SRAM
1476
* (or from user space - later)
1478
* This operation requires the NIC to be halted and is performed with
1479
* interrupts disabled and with the spinlock hold.
1481
static int rr_load_firmware(struct net_device *dev)
1483
struct rr_private *rrpriv;
1484
struct rr_regs __iomem *regs;
1485
size_t eptr, segptr;
1487
u32 localctrl, sptr, len, tmp;
1488
u32 p2len, p2size, nr_seg, revision, io, sram_size;
1490
rrpriv = netdev_priv(dev);
1491
regs = rrpriv->regs;
1493
if (dev->flags & IFF_UP)
1496
if (!(readl(®s->HostCtrl) & NIC_HALTED)){
1497
printk("%s: Trying to load firmware to a running NIC.\n",
1502
localctrl = readl(®s->LocalCtrl);
1503
writel(0, ®s->LocalCtrl);
1505
writel(0, ®s->EvtPrd);
1506
writel(0, ®s->RxPrd);
1507
writel(0, ®s->TxPrd);
1510
* First wipe the entire SRAM, otherwise we might run into all
1511
* kinds of trouble ... sigh, this took almost all afternoon
1514
io = readl(®s->ExtIo);
1515
writel(0, ®s->ExtIo);
1516
sram_size = rr_read_eeprom_word(rrpriv, 8);
1518
for (i = 200; i < sram_size / 4; i++){
1519
writel(i * 4, ®s->WinBase);
1521
writel(0, ®s->WinData);
1524
writel(io, ®s->ExtIo);
1527
eptr = rr_read_eeprom_word(rrpriv,
1528
offsetof(struct eeprom, rncd_info.AddrRunCodeSegs));
1529
eptr = ((eptr & 0x1fffff) >> 3);
1531
p2len = rr_read_eeprom_word(rrpriv, 0x83*4);
1532
p2len = (p2len << 2);
1533
p2size = rr_read_eeprom_word(rrpriv, 0x84*4);
1534
p2size = ((p2size & 0x1fffff) >> 3);
1536
if ((eptr < p2size) || (eptr > (p2size + p2len))){
1537
printk("%s: eptr is invalid\n", dev->name);
1541
revision = rr_read_eeprom_word(rrpriv,
1542
offsetof(struct eeprom, manf.HeaderFmt));
1545
printk("%s: invalid firmware format (%i)\n",
1546
dev->name, revision);
1550
nr_seg = rr_read_eeprom_word(rrpriv, eptr);
1553
printk("%s: nr_seg %i\n", dev->name, nr_seg);
1556
for (i = 0; i < nr_seg; i++){
1557
sptr = rr_read_eeprom_word(rrpriv, eptr);
1559
len = rr_read_eeprom_word(rrpriv, eptr);
1561
segptr = rr_read_eeprom_word(rrpriv, eptr);
1562
segptr = ((segptr & 0x1fffff) >> 3);
1565
printk("%s: segment %i, sram address %06x, length %04x, segptr %06x\n",
1566
dev->name, i, sptr, len, segptr);
1568
for (j = 0; j < len; j++){
1569
tmp = rr_read_eeprom_word(rrpriv, segptr);
1570
writel(sptr, ®s->WinBase);
1572
writel(tmp, ®s->WinData);
1580
writel(localctrl, ®s->LocalCtrl);
1586
static int rr_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
1588
struct rr_private *rrpriv;
1589
unsigned char *image, *oldimage;
1590
unsigned long flags;
1592
int error = -EOPNOTSUPP;
1594
rrpriv = netdev_priv(dev);
1598
if (!capable(CAP_SYS_RAWIO)){
1602
image = kmalloc(EEPROM_WORDS * sizeof(u32), GFP_KERNEL);
1604
printk(KERN_ERR "%s: Unable to allocate memory "
1605
"for EEPROM image\n", dev->name);
1610
if (rrpriv->fw_running){
1611
printk("%s: Firmware already running\n", dev->name);
1616
spin_lock_irqsave(&rrpriv->lock, flags);
1617
i = rr_read_eeprom(rrpriv, 0, image, EEPROM_BYTES);
1618
spin_unlock_irqrestore(&rrpriv->lock, flags);
1619
if (i != EEPROM_BYTES){
1620
printk(KERN_ERR "%s: Error reading EEPROM\n",
1625
error = copy_to_user(rq->ifr_data, image, EEPROM_BYTES);
1633
if (!capable(CAP_SYS_RAWIO)){
1637
image = kmalloc(EEPROM_WORDS * sizeof(u32), GFP_KERNEL);
1638
oldimage = kmalloc(EEPROM_WORDS * sizeof(u32), GFP_KERNEL);
1639
if (!image || !oldimage) {
1640
printk(KERN_ERR "%s: Unable to allocate memory "
1641
"for EEPROM image\n", dev->name);
1646
error = copy_from_user(image, rq->ifr_data, EEPROM_BYTES);
1652
if (rrpriv->fw_running){
1653
printk("%s: Firmware already running\n", dev->name);
1658
printk("%s: Updating EEPROM firmware\n", dev->name);
1660
spin_lock_irqsave(&rrpriv->lock, flags);
1661
error = write_eeprom(rrpriv, 0, image, EEPROM_BYTES);
1663
printk(KERN_ERR "%s: Error writing EEPROM\n",
1666
i = rr_read_eeprom(rrpriv, 0, oldimage, EEPROM_BYTES);
1667
spin_unlock_irqrestore(&rrpriv->lock, flags);
1669
if (i != EEPROM_BYTES)
1670
printk(KERN_ERR "%s: Error reading back EEPROM "
1671
"image\n", dev->name);
1673
error = memcmp(image, oldimage, EEPROM_BYTES);
1675
printk(KERN_ERR "%s: Error verifying EEPROM image\n",
1685
return put_user(0x52523032, (int __user *)rq->ifr_data);
1691
static DEFINE_PCI_DEVICE_TABLE(rr_pci_tbl) = {
1692
{ PCI_VENDOR_ID_ESSENTIAL, PCI_DEVICE_ID_ESSENTIAL_ROADRUNNER,
1693
PCI_ANY_ID, PCI_ANY_ID, },
1696
MODULE_DEVICE_TABLE(pci, rr_pci_tbl);
1698
static struct pci_driver rr_driver = {
1700
.id_table = rr_pci_tbl,
1701
.probe = rr_init_one,
1702
.remove = __devexit_p(rr_remove_one),
1705
static int __init rr_init_module(void)
1707
return pci_register_driver(&rr_driver);
1710
static void __exit rr_cleanup_module(void)
1712
pci_unregister_driver(&rr_driver);
1715
module_init(rr_init_module);
1716
module_exit(rr_cleanup_module);