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>
45 #include <asm/system.h>
46 #include <asm/cache.h>
47 #include <asm/byteorder.h>
50 #include <asm/uaccess.h>
52 #define rr_if_busy(dev) netif_queue_stopped(dev)
53 #define rr_if_running(dev) netif_running(dev)
57 #define RUN_AT(x) (jiffies + (x))
60 MODULE_AUTHOR("Jes Sorensen <jes@wildopensource.com>");
61 MODULE_DESCRIPTION("Essential RoadRunner HIPPI driver");
62 MODULE_LICENSE("GPL");
64 static char version[] __devinitdata = "rrunner.c: v0.50 11/11/2002 Jes Sorensen (jes@wildopensource.com)\n";
67 * Implementation notes:
69 * The DMA engine only allows for DMA within physical 64KB chunks of
70 * memory. The current approach of the driver (and stack) is to use
71 * linear blocks of memory for the skbuffs. However, as the data block
72 * is always the first part of the skb and skbs are 2^n aligned so we
73 * are guarantted to get the whole block within one 64KB align 64KB
76 * On the long term, relying on being able to allocate 64KB linear
77 * chunks of memory is not feasible and the skb handling code and the
78 * stack will need to know about I/O vectors or something similar.
82 * sysctl_[wr]mem_max are checked at init time to see if they are at
83 * least 256KB and increased to 256KB if they are not. This is done to
84 * avoid ending up with socket buffers smaller than the MTU size,
87 static int __devinit rr_init_one(struct pci_dev *pdev,
88 const struct pci_device_id *ent)
90 struct net_device *dev;
91 static int version_disp;
93 struct rr_private *rrpriv;
98 dev = alloc_hippi_dev(sizeof(struct rr_private));
102 ret = pci_enable_device(pdev);
108 rrpriv = netdev_priv(dev);
110 SET_NETDEV_DEV(dev, &pdev->dev);
112 if (pci_request_regions(pdev, "rrunner")) {
117 pci_set_drvdata(pdev, dev);
119 rrpriv->pci_dev = pdev;
121 spin_lock_init(&rrpriv->lock);
123 dev->irq = pdev->irq;
124 dev->open = &rr_open;
125 dev->hard_start_xmit = &rr_start_xmit;
126 dev->stop = &rr_close;
127 dev->do_ioctl = &rr_ioctl;
129 dev->base_addr = pci_resource_start(pdev, 0);
131 /* display version info if adapter is found */
133 /* set display flag to TRUE so that */
134 /* we only display this string ONCE */
139 pci_read_config_byte(pdev, PCI_LATENCY_TIMER, &pci_latency);
140 if (pci_latency <= 0x58){
142 pci_write_config_byte(pdev, PCI_LATENCY_TIMER, pci_latency);
145 pci_set_master(pdev);
147 printk(KERN_INFO "%s: Essential RoadRunner serial HIPPI "
148 "at 0x%08lx, irq %i, PCI latency %i\n", dev->name,
149 dev->base_addr, dev->irq, pci_latency);
152 * Remap the regs into kernel space.
155 rrpriv->regs = ioremap(dev->base_addr, 0x1000);
158 printk(KERN_ERR "%s: Unable to map I/O register, "
159 "RoadRunner will be disabled.\n", dev->name);
164 tmpptr = pci_alloc_consistent(pdev, TX_TOTAL_SIZE, &ring_dma);
165 rrpriv->tx_ring = tmpptr;
166 rrpriv->tx_ring_dma = ring_dma;
173 tmpptr = pci_alloc_consistent(pdev, RX_TOTAL_SIZE, &ring_dma);
174 rrpriv->rx_ring = tmpptr;
175 rrpriv->rx_ring_dma = ring_dma;
182 tmpptr = pci_alloc_consistent(pdev, EVT_RING_SIZE, &ring_dma);
183 rrpriv->evt_ring = tmpptr;
184 rrpriv->evt_ring_dma = ring_dma;
192 * Don't access any register before this point!
195 writel(readl(&rrpriv->regs->HostCtrl) | NO_SWAP,
196 &rrpriv->regs->HostCtrl);
199 * Need to add a case for little-endian 64-bit hosts here.
206 ret = register_netdev(dev);
213 pci_free_consistent(pdev, RX_TOTAL_SIZE, rrpriv->rx_ring,
214 rrpriv->rx_ring_dma);
216 pci_free_consistent(pdev, TX_TOTAL_SIZE, rrpriv->tx_ring,
217 rrpriv->tx_ring_dma);
219 iounmap(rrpriv->regs);
221 pci_release_regions(pdev);
222 pci_set_drvdata(pdev, NULL);
230 static void __devexit rr_remove_one (struct pci_dev *pdev)
232 struct net_device *dev = pci_get_drvdata(pdev);
235 struct rr_private *rr = netdev_priv(dev);
237 if (!(readl(&rr->regs->HostCtrl) & NIC_HALTED)){
238 printk(KERN_ERR "%s: trying to unload running NIC\n",
240 writel(HALT_NIC, &rr->regs->HostCtrl);
243 pci_free_consistent(pdev, EVT_RING_SIZE, rr->evt_ring,
245 pci_free_consistent(pdev, RX_TOTAL_SIZE, rr->rx_ring,
247 pci_free_consistent(pdev, TX_TOTAL_SIZE, rr->tx_ring,
249 unregister_netdev(dev);
252 pci_release_regions(pdev);
253 pci_disable_device(pdev);
254 pci_set_drvdata(pdev, NULL);
260 * Commands are considered to be slow, thus there is no reason to
263 static void rr_issue_cmd(struct rr_private *rrpriv, struct cmd *cmd)
265 struct rr_regs __iomem *regs;
270 * This is temporary - it will go away in the final version.
271 * We probably also want to make this function inline.
273 if (readl(®s->HostCtrl) & NIC_HALTED){
274 printk("issuing command for halted NIC, code 0x%x, "
275 "HostCtrl %08x\n", cmd->code, readl(®s->HostCtrl));
276 if (readl(®s->Mode) & FATAL_ERR)
277 printk("error codes Fail1 %02x, Fail2 %02x\n",
278 readl(®s->Fail1), readl(®s->Fail2));
281 idx = rrpriv->info->cmd_ctrl.pi;
283 writel(*(u32*)(cmd), ®s->CmdRing[idx]);
286 idx = (idx - 1) % CMD_RING_ENTRIES;
287 rrpriv->info->cmd_ctrl.pi = idx;
290 if (readl(®s->Mode) & FATAL_ERR)
291 printk("error code %02x\n", readl(®s->Fail1));
296 * Reset the board in a sensible manner. The NIC is already halted
297 * when we get here and a spin-lock is held.
299 static int rr_reset(struct net_device *dev)
301 struct rr_private *rrpriv;
302 struct rr_regs __iomem *regs;
303 struct eeprom *hw = NULL;
307 rrpriv = netdev_priv(dev);
310 rr_load_firmware(dev);
312 writel(0x01000000, ®s->TX_state);
313 writel(0xff800000, ®s->RX_state);
314 writel(0, ®s->AssistState);
315 writel(CLEAR_INTA, ®s->LocalCtrl);
316 writel(0x01, ®s->BrkPt);
317 writel(0, ®s->Timer);
318 writel(0, ®s->TimerRef);
319 writel(RESET_DMA, ®s->DmaReadState);
320 writel(RESET_DMA, ®s->DmaWriteState);
321 writel(0, ®s->DmaWriteHostHi);
322 writel(0, ®s->DmaWriteHostLo);
323 writel(0, ®s->DmaReadHostHi);
324 writel(0, ®s->DmaReadHostLo);
325 writel(0, ®s->DmaReadLen);
326 writel(0, ®s->DmaWriteLen);
327 writel(0, ®s->DmaWriteLcl);
328 writel(0, ®s->DmaWriteIPchecksum);
329 writel(0, ®s->DmaReadLcl);
330 writel(0, ®s->DmaReadIPchecksum);
331 writel(0, ®s->PciState);
332 #if (BITS_PER_LONG == 64) && defined __LITTLE_ENDIAN
333 writel(SWAP_DATA | PTR64BIT | PTR_WD_SWAP, ®s->Mode);
334 #elif (BITS_PER_LONG == 64)
335 writel(SWAP_DATA | PTR64BIT | PTR_WD_NOSWAP, ®s->Mode);
337 writel(SWAP_DATA | PTR32BIT | PTR_WD_NOSWAP, ®s->Mode);
342 * Don't worry, this is just black magic.
344 writel(0xdf000, ®s->RxBase);
345 writel(0xdf000, ®s->RxPrd);
346 writel(0xdf000, ®s->RxCon);
347 writel(0xce000, ®s->TxBase);
348 writel(0xce000, ®s->TxPrd);
349 writel(0xce000, ®s->TxCon);
350 writel(0, ®s->RxIndPro);
351 writel(0, ®s->RxIndCon);
352 writel(0, ®s->RxIndRef);
353 writel(0, ®s->TxIndPro);
354 writel(0, ®s->TxIndCon);
355 writel(0, ®s->TxIndRef);
356 writel(0xcc000, ®s->pad10[0]);
357 writel(0, ®s->DrCmndPro);
358 writel(0, ®s->DrCmndCon);
359 writel(0, ®s->DwCmndPro);
360 writel(0, ®s->DwCmndCon);
361 writel(0, ®s->DwCmndRef);
362 writel(0, ®s->DrDataPro);
363 writel(0, ®s->DrDataCon);
364 writel(0, ®s->DrDataRef);
365 writel(0, ®s->DwDataPro);
366 writel(0, ®s->DwDataCon);
367 writel(0, ®s->DwDataRef);
370 writel(0xffffffff, ®s->MbEvent);
371 writel(0, ®s->Event);
373 writel(0, ®s->TxPi);
374 writel(0, ®s->IpRxPi);
376 writel(0, ®s->EvtCon);
377 writel(0, ®s->EvtPrd);
379 rrpriv->info->evt_ctrl.pi = 0;
381 for (i = 0; i < CMD_RING_ENTRIES; i++)
382 writel(0, ®s->CmdRing[i]);
385 * Why 32 ? is this not cache line size dependent?
387 writel(RBURST_64|WBURST_64, ®s->PciState);
390 start_pc = rr_read_eeprom_word(rrpriv, &hw->rncd_info.FwStart);
393 printk("%s: Executing firmware at address 0x%06x\n",
394 dev->name, start_pc);
397 writel(start_pc + 0x800, ®s->Pc);
401 writel(start_pc, ®s->Pc);
409 * Read a string from the EEPROM.
411 static unsigned int rr_read_eeprom(struct rr_private *rrpriv,
412 unsigned long offset,
414 unsigned long length)
416 struct rr_regs __iomem *regs = rrpriv->regs;
417 u32 misc, io, host, i;
419 io = readl(®s->ExtIo);
420 writel(0, ®s->ExtIo);
421 misc = readl(®s->LocalCtrl);
422 writel(0, ®s->LocalCtrl);
423 host = readl(®s->HostCtrl);
424 writel(host | HALT_NIC, ®s->HostCtrl);
427 for (i = 0; i < length; i++){
428 writel((EEPROM_BASE + ((offset+i) << 3)), ®s->WinBase);
430 buf[i] = (readl(®s->WinData) >> 24) & 0xff;
434 writel(host, ®s->HostCtrl);
435 writel(misc, ®s->LocalCtrl);
436 writel(io, ®s->ExtIo);
443 * Shortcut to read one word (4 bytes) out of the EEPROM and convert
444 * it to our CPU byte-order.
446 static u32 rr_read_eeprom_word(struct rr_private *rrpriv,
451 if ((rr_read_eeprom(rrpriv, (unsigned long)offset,
452 (char *)&word, 4) == 4))
453 return be32_to_cpu(word);
459 * Write a string to the EEPROM.
461 * This is only called when the firmware is not running.
463 static unsigned int write_eeprom(struct rr_private *rrpriv,
464 unsigned long offset,
466 unsigned long length)
468 struct rr_regs __iomem *regs = rrpriv->regs;
469 u32 misc, io, data, i, j, ready, error = 0;
471 io = readl(®s->ExtIo);
472 writel(0, ®s->ExtIo);
473 misc = readl(®s->LocalCtrl);
474 writel(ENABLE_EEPROM_WRITE, ®s->LocalCtrl);
477 for (i = 0; i < length; i++){
478 writel((EEPROM_BASE + ((offset+i) << 3)), ®s->WinBase);
482 * Only try to write the data if it is not the same
485 if ((readl(®s->WinData) & 0xff000000) != data){
486 writel(data, ®s->WinData);
492 if ((readl(®s->WinData) & 0xff000000) ==
497 printk("data mismatch: %08x, "
498 "WinData %08x\n", data,
499 readl(®s->WinData));
507 writel(misc, ®s->LocalCtrl);
508 writel(io, ®s->ExtIo);
515 static int __devinit rr_init(struct net_device *dev)
517 struct rr_private *rrpriv;
518 struct rr_regs __iomem *regs;
519 struct eeprom *hw = NULL;
521 DECLARE_MAC_BUF(mac);
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 *(u16 *)(dev->dev_addr) =
555 htons(rr_read_eeprom_word(rrpriv, &hw->manf.BoardULA));
556 *(u32 *)(dev->dev_addr+2) =
557 htonl(rr_read_eeprom_word(rrpriv, &hw->manf.BoardULA[4]));
559 printk(" MAC: %s\n", print_mac(mac, dev->dev_addr));
561 sram_size = rr_read_eeprom_word(rrpriv, (void *)8);
562 printk(" SRAM size 0x%06x\n", sram_size);
564 if (sysctl_rmem_max < 262144){
565 printk(" Receive socket buffer limit too low (%i), "
566 "setting to 262144\n", sysctl_rmem_max);
567 sysctl_rmem_max = 262144;
570 if (sysctl_wmem_max < 262144){
571 printk(" Transmit socket buffer limit too low (%i), "
572 "setting to 262144\n", sysctl_wmem_max);
573 sysctl_wmem_max = 262144;
580 static int rr_init1(struct net_device *dev)
582 struct rr_private *rrpriv;
583 struct rr_regs __iomem *regs;
584 unsigned long myjif, flags;
590 rrpriv = netdev_priv(dev);
593 spin_lock_irqsave(&rrpriv->lock, flags);
595 hostctrl = readl(®s->HostCtrl);
596 writel(hostctrl | HALT_NIC | RR_CLEAR_INT, ®s->HostCtrl);
599 if (hostctrl & PARITY_ERR){
600 printk("%s: Parity error halting NIC - this is serious!\n",
602 spin_unlock_irqrestore(&rrpriv->lock, flags);
607 set_rxaddr(regs, rrpriv->rx_ctrl_dma);
608 set_infoaddr(regs, rrpriv->info_dma);
610 rrpriv->info->evt_ctrl.entry_size = sizeof(struct event);
611 rrpriv->info->evt_ctrl.entries = EVT_RING_ENTRIES;
612 rrpriv->info->evt_ctrl.mode = 0;
613 rrpriv->info->evt_ctrl.pi = 0;
614 set_rraddr(&rrpriv->info->evt_ctrl.rngptr, rrpriv->evt_ring_dma);
616 rrpriv->info->cmd_ctrl.entry_size = sizeof(struct cmd);
617 rrpriv->info->cmd_ctrl.entries = CMD_RING_ENTRIES;
618 rrpriv->info->cmd_ctrl.mode = 0;
619 rrpriv->info->cmd_ctrl.pi = 15;
621 for (i = 0; i < CMD_RING_ENTRIES; i++) {
622 writel(0, ®s->CmdRing[i]);
625 for (i = 0; i < TX_RING_ENTRIES; i++) {
626 rrpriv->tx_ring[i].size = 0;
627 set_rraddr(&rrpriv->tx_ring[i].addr, 0);
628 rrpriv->tx_skbuff[i] = NULL;
630 rrpriv->info->tx_ctrl.entry_size = sizeof(struct tx_desc);
631 rrpriv->info->tx_ctrl.entries = TX_RING_ENTRIES;
632 rrpriv->info->tx_ctrl.mode = 0;
633 rrpriv->info->tx_ctrl.pi = 0;
634 set_rraddr(&rrpriv->info->tx_ctrl.rngptr, rrpriv->tx_ring_dma);
637 * Set dirty_tx before we start receiving interrupts, otherwise
638 * the interrupt handler might think it is supposed to process
639 * tx ints before we are up and running, which may cause a null
640 * pointer access in the int handler.
644 rrpriv->dirty_rx = rrpriv->dirty_tx = 0;
649 writel(0x5000, ®s->ConRetry);
650 writel(0x100, ®s->ConRetryTmr);
651 writel(0x500000, ®s->ConTmout);
652 writel(0x60, ®s->IntrTmr);
653 writel(0x500000, ®s->TxDataMvTimeout);
654 writel(0x200000, ®s->RxDataMvTimeout);
655 writel(0x80, ®s->WriteDmaThresh);
656 writel(0x80, ®s->ReadDmaThresh);
658 rrpriv->fw_running = 0;
661 hostctrl &= ~(HALT_NIC | INVALID_INST_B | PARITY_ERR);
662 writel(hostctrl, ®s->HostCtrl);
665 spin_unlock_irqrestore(&rrpriv->lock, flags);
667 for (i = 0; i < RX_RING_ENTRIES; i++) {
671 rrpriv->rx_ring[i].mode = 0;
672 skb = alloc_skb(dev->mtu + HIPPI_HLEN, GFP_ATOMIC);
674 printk(KERN_WARNING "%s: Unable to allocate memory "
675 "for receive ring - halting NIC\n", dev->name);
679 rrpriv->rx_skbuff[i] = skb;
680 addr = pci_map_single(rrpriv->pci_dev, skb->data,
681 dev->mtu + HIPPI_HLEN, PCI_DMA_FROMDEVICE);
683 * Sanity test to see if we conflict with the DMA
684 * limitations of the Roadrunner.
686 if ((((unsigned long)skb->data) & 0xfff) > ~65320)
687 printk("skb alloc error\n");
689 set_rraddr(&rrpriv->rx_ring[i].addr, addr);
690 rrpriv->rx_ring[i].size = dev->mtu + HIPPI_HLEN;
693 rrpriv->rx_ctrl[4].entry_size = sizeof(struct rx_desc);
694 rrpriv->rx_ctrl[4].entries = RX_RING_ENTRIES;
695 rrpriv->rx_ctrl[4].mode = 8;
696 rrpriv->rx_ctrl[4].pi = 0;
698 set_rraddr(&rrpriv->rx_ctrl[4].rngptr, rrpriv->rx_ring_dma);
703 * Now start the FirmWare.
705 cmd.code = C_START_FW;
709 rr_issue_cmd(rrpriv, &cmd);
712 * Give the FirmWare time to chew on the `get running' command.
714 myjif = jiffies + 5 * HZ;
715 while (time_before(jiffies, myjif) && !rrpriv->fw_running)
718 netif_start_queue(dev);
724 * We might have gotten here because we are out of memory,
725 * make sure we release everything we allocated before failing
727 for (i = 0; i < RX_RING_ENTRIES; i++) {
728 struct sk_buff *skb = rrpriv->rx_skbuff[i];
731 pci_unmap_single(rrpriv->pci_dev,
732 rrpriv->rx_ring[i].addr.addrlo,
733 dev->mtu + HIPPI_HLEN,
735 rrpriv->rx_ring[i].size = 0;
736 set_rraddr(&rrpriv->rx_ring[i].addr, 0);
738 rrpriv->rx_skbuff[i] = NULL;
746 * All events are considered to be slow (RX/TX ints do not generate
747 * events) and are handled here, outside the main interrupt handler,
748 * to reduce the size of the handler.
750 static u32 rr_handle_event(struct net_device *dev, u32 prodidx, u32 eidx)
752 struct rr_private *rrpriv;
753 struct rr_regs __iomem *regs;
756 rrpriv = netdev_priv(dev);
759 while (prodidx != eidx){
760 switch (rrpriv->evt_ring[eidx].code){
762 tmp = readl(®s->FwRev);
763 printk(KERN_INFO "%s: Firmware revision %i.%i.%i "
764 "up and running\n", dev->name,
765 (tmp >> 16), ((tmp >> 8) & 0xff), (tmp & 0xff));
766 rrpriv->fw_running = 1;
767 writel(RX_RING_ENTRIES - 1, ®s->IpRxPi);
771 printk(KERN_INFO "%s: Optical link ON\n", dev->name);
774 printk(KERN_INFO "%s: Optical link OFF\n", dev->name);
777 printk(KERN_WARNING "%s: RX data not moving\n",
781 printk(KERN_INFO "%s: The watchdog is here to see "
785 printk(KERN_ERR "%s: HIPPI Internal NIC error\n",
787 writel(readl(®s->HostCtrl)|HALT_NIC|RR_CLEAR_INT,
792 printk(KERN_ERR "%s: Host software error\n",
794 writel(readl(®s->HostCtrl)|HALT_NIC|RR_CLEAR_INT,
802 printk(KERN_WARNING "%s: Connection rejected\n",
804 dev->stats.tx_aborted_errors++;
807 printk(KERN_WARNING "%s: Connection timeout\n",
811 printk(KERN_WARNING "%s: HIPPI disconnect error\n",
813 dev->stats.tx_aborted_errors++;
816 printk(KERN_ERR "%s: HIPPI Internal Parity error\n",
818 writel(readl(®s->HostCtrl)|HALT_NIC|RR_CLEAR_INT,
823 printk(KERN_WARNING "%s: Transmitter idle\n",
827 printk(KERN_WARNING "%s: Link lost during transmit\n",
829 dev->stats.tx_aborted_errors++;
830 writel(readl(®s->HostCtrl)|HALT_NIC|RR_CLEAR_INT,
835 printk(KERN_ERR "%s: Invalid send ring block\n",
837 writel(readl(®s->HostCtrl)|HALT_NIC|RR_CLEAR_INT,
842 printk(KERN_ERR "%s: Invalid send buffer address\n",
844 writel(readl(®s->HostCtrl)|HALT_NIC|RR_CLEAR_INT,
849 printk(KERN_ERR "%s: Invalid descriptor address\n",
851 writel(readl(®s->HostCtrl)|HALT_NIC|RR_CLEAR_INT,
859 printk(KERN_INFO "%s: Receive ring full\n", dev->name);
863 printk(KERN_WARNING "%s: Receive parity error\n",
867 printk(KERN_WARNING "%s: Receive LLRC error\n",
871 printk(KERN_WARNING "%s: Receive packet length "
872 "error\n", dev->name);
875 printk(KERN_WARNING "%s: Data checksum error\n",
879 printk(KERN_WARNING "%s: Unexpected short burst "
880 "error\n", dev->name);
883 printk(KERN_WARNING "%s: Recv. state transition"
884 " error\n", dev->name);
887 printk(KERN_WARNING "%s: Unexpected data error\n",
891 printk(KERN_WARNING "%s: Link lost error\n",
895 printk(KERN_WARNING "%s: Framming Error\n",
899 printk(KERN_WARNING "%s: Flag sync. lost during"
900 "packet\n", dev->name);
903 printk(KERN_ERR "%s: Invalid receive buffer "
904 "address\n", dev->name);
905 writel(readl(®s->HostCtrl)|HALT_NIC|RR_CLEAR_INT,
910 printk(KERN_ERR "%s: Invalid receive descriptor "
911 "address\n", dev->name);
912 writel(readl(®s->HostCtrl)|HALT_NIC|RR_CLEAR_INT,
917 printk(KERN_ERR "%s: Invalid ring block\n",
919 writel(readl(®s->HostCtrl)|HALT_NIC|RR_CLEAR_INT,
924 /* Label packet to be dropped.
925 * Actual dropping occurs in rx
928 * The index of packet we get to drop is
929 * the index of the packet following
930 * the bad packet. -kbf
933 u16 index = rrpriv->evt_ring[eidx].index;
934 index = (index + (RX_RING_ENTRIES - 1)) %
936 rrpriv->rx_ring[index].mode |=
937 (PACKET_BAD | PACKET_END);
941 printk(KERN_WARNING "%s: Unhandled event 0x%02x\n",
942 dev->name, rrpriv->evt_ring[eidx].code);
944 eidx = (eidx + 1) % EVT_RING_ENTRIES;
947 rrpriv->info->evt_ctrl.pi = eidx;
953 static void rx_int(struct net_device *dev, u32 rxlimit, u32 index)
955 struct rr_private *rrpriv = netdev_priv(dev);
956 struct rr_regs __iomem *regs = rrpriv->regs;
959 struct rx_desc *desc;
962 desc = &(rrpriv->rx_ring[index]);
963 pkt_len = desc->size;
965 printk("index %i, rxlimit %i\n", index, rxlimit);
966 printk("len %x, mode %x\n", pkt_len, desc->mode);
968 if ( (rrpriv->rx_ring[index].mode & PACKET_BAD) == PACKET_BAD){
969 dev->stats.rx_dropped++;
974 struct sk_buff *skb, *rx_skb;
976 rx_skb = rrpriv->rx_skbuff[index];
978 if (pkt_len < PKT_COPY_THRESHOLD) {
979 skb = alloc_skb(pkt_len, GFP_ATOMIC);
981 printk(KERN_WARNING "%s: Unable to allocate skb (%i bytes), deferring packet\n", dev->name, pkt_len);
982 dev->stats.rx_dropped++;
985 pci_dma_sync_single_for_cpu(rrpriv->pci_dev,
990 memcpy(skb_put(skb, pkt_len),
991 rx_skb->data, pkt_len);
993 pci_dma_sync_single_for_device(rrpriv->pci_dev,
999 struct sk_buff *newskb;
1001 newskb = alloc_skb(dev->mtu + HIPPI_HLEN,
1006 pci_unmap_single(rrpriv->pci_dev,
1007 desc->addr.addrlo, dev->mtu +
1008 HIPPI_HLEN, PCI_DMA_FROMDEVICE);
1010 skb_put(skb, pkt_len);
1011 rrpriv->rx_skbuff[index] = newskb;
1012 addr = pci_map_single(rrpriv->pci_dev,
1014 dev->mtu + HIPPI_HLEN,
1015 PCI_DMA_FROMDEVICE);
1016 set_rraddr(&desc->addr, addr);
1018 printk("%s: Out of memory, deferring "
1019 "packet\n", dev->name);
1020 dev->stats.rx_dropped++;
1024 skb->protocol = hippi_type_trans(skb, dev);
1026 netif_rx(skb); /* send it up */
1028 dev->last_rx = jiffies;
1029 dev->stats.rx_packets++;
1030 dev->stats.rx_bytes += pkt_len;
1034 desc->size = dev->mtu + HIPPI_HLEN;
1036 if ((index & 7) == 7)
1037 writel(index, ®s->IpRxPi);
1039 index = (index + 1) % RX_RING_ENTRIES;
1040 } while(index != rxlimit);
1042 rrpriv->cur_rx = index;
1047 static irqreturn_t rr_interrupt(int irq, void *dev_id)
1049 struct rr_private *rrpriv;
1050 struct rr_regs __iomem *regs;
1051 struct net_device *dev = (struct net_device *)dev_id;
1052 u32 prodidx, rxindex, eidx, txcsmr, rxlimit, txcon;
1054 rrpriv = netdev_priv(dev);
1055 regs = rrpriv->regs;
1057 if (!(readl(®s->HostCtrl) & RR_INT))
1060 spin_lock(&rrpriv->lock);
1062 prodidx = readl(®s->EvtPrd);
1063 txcsmr = (prodidx >> 8) & 0xff;
1064 rxlimit = (prodidx >> 16) & 0xff;
1068 printk("%s: interrupt, prodidx = %i, eidx = %i\n", dev->name,
1069 prodidx, rrpriv->info->evt_ctrl.pi);
1072 * Order here is important. We must handle events
1073 * before doing anything else in order to catch
1074 * such things as LLRC errors, etc -kbf
1077 eidx = rrpriv->info->evt_ctrl.pi;
1078 if (prodidx != eidx)
1079 eidx = rr_handle_event(dev, prodidx, eidx);
1081 rxindex = rrpriv->cur_rx;
1082 if (rxindex != rxlimit)
1083 rx_int(dev, rxlimit, rxindex);
1085 txcon = rrpriv->dirty_tx;
1086 if (txcsmr != txcon) {
1088 /* Due to occational firmware TX producer/consumer out
1089 * of sync. error need to check entry in ring -kbf
1091 if(rrpriv->tx_skbuff[txcon]){
1092 struct tx_desc *desc;
1093 struct sk_buff *skb;
1095 desc = &(rrpriv->tx_ring[txcon]);
1096 skb = rrpriv->tx_skbuff[txcon];
1098 dev->stats.tx_packets++;
1099 dev->stats.tx_bytes += skb->len;
1101 pci_unmap_single(rrpriv->pci_dev,
1102 desc->addr.addrlo, skb->len,
1104 dev_kfree_skb_irq(skb);
1106 rrpriv->tx_skbuff[txcon] = NULL;
1108 set_rraddr(&rrpriv->tx_ring[txcon].addr, 0);
1111 txcon = (txcon + 1) % TX_RING_ENTRIES;
1112 } while (txcsmr != txcon);
1115 rrpriv->dirty_tx = txcon;
1116 if (rrpriv->tx_full && rr_if_busy(dev) &&
1117 (((rrpriv->info->tx_ctrl.pi + 1) % TX_RING_ENTRIES)
1118 != rrpriv->dirty_tx)){
1119 rrpriv->tx_full = 0;
1120 netif_wake_queue(dev);
1124 eidx |= ((txcsmr << 8) | (rxlimit << 16));
1125 writel(eidx, ®s->EvtCon);
1128 spin_unlock(&rrpriv->lock);
1132 static inline void rr_raz_tx(struct rr_private *rrpriv,
1133 struct net_device *dev)
1137 for (i = 0; i < TX_RING_ENTRIES; i++) {
1138 struct sk_buff *skb = rrpriv->tx_skbuff[i];
1141 struct tx_desc *desc = &(rrpriv->tx_ring[i]);
1143 pci_unmap_single(rrpriv->pci_dev, desc->addr.addrlo,
1144 skb->len, PCI_DMA_TODEVICE);
1146 set_rraddr(&desc->addr, 0);
1148 rrpriv->tx_skbuff[i] = NULL;
1154 static inline void rr_raz_rx(struct rr_private *rrpriv,
1155 struct net_device *dev)
1159 for (i = 0; i < RX_RING_ENTRIES; i++) {
1160 struct sk_buff *skb = rrpriv->rx_skbuff[i];
1163 struct rx_desc *desc = &(rrpriv->rx_ring[i]);
1165 pci_unmap_single(rrpriv->pci_dev, desc->addr.addrlo,
1166 dev->mtu + HIPPI_HLEN, PCI_DMA_FROMDEVICE);
1168 set_rraddr(&desc->addr, 0);
1170 rrpriv->rx_skbuff[i] = NULL;
1175 static void rr_timer(unsigned long data)
1177 struct net_device *dev = (struct net_device *)data;
1178 struct rr_private *rrpriv = netdev_priv(dev);
1179 struct rr_regs __iomem *regs = rrpriv->regs;
1180 unsigned long flags;
1182 if (readl(®s->HostCtrl) & NIC_HALTED){
1183 printk("%s: Restarting nic\n", dev->name);
1184 memset(rrpriv->rx_ctrl, 0, 256 * sizeof(struct ring_ctrl));
1185 memset(rrpriv->info, 0, sizeof(struct rr_info));
1188 rr_raz_tx(rrpriv, dev);
1189 rr_raz_rx(rrpriv, dev);
1191 if (rr_init1(dev)) {
1192 spin_lock_irqsave(&rrpriv->lock, flags);
1193 writel(readl(®s->HostCtrl)|HALT_NIC|RR_CLEAR_INT,
1195 spin_unlock_irqrestore(&rrpriv->lock, flags);
1198 rrpriv->timer.expires = RUN_AT(5*HZ);
1199 add_timer(&rrpriv->timer);
1203 static int rr_open(struct net_device *dev)
1205 struct rr_private *rrpriv = netdev_priv(dev);
1206 struct pci_dev *pdev = rrpriv->pci_dev;
1207 struct rr_regs __iomem *regs;
1209 unsigned long flags;
1210 dma_addr_t dma_addr;
1212 regs = rrpriv->regs;
1214 if (rrpriv->fw_rev < 0x00020000) {
1215 printk(KERN_WARNING "%s: trying to configure device with "
1216 "obsolete firmware\n", dev->name);
1221 rrpriv->rx_ctrl = pci_alloc_consistent(pdev,
1222 256 * sizeof(struct ring_ctrl),
1224 if (!rrpriv->rx_ctrl) {
1228 rrpriv->rx_ctrl_dma = dma_addr;
1229 memset(rrpriv->rx_ctrl, 0, 256*sizeof(struct ring_ctrl));
1231 rrpriv->info = pci_alloc_consistent(pdev, sizeof(struct rr_info),
1233 if (!rrpriv->info) {
1237 rrpriv->info_dma = dma_addr;
1238 memset(rrpriv->info, 0, sizeof(struct rr_info));
1241 spin_lock_irqsave(&rrpriv->lock, flags);
1242 writel(readl(®s->HostCtrl)|HALT_NIC|RR_CLEAR_INT, ®s->HostCtrl);
1243 readl(®s->HostCtrl);
1244 spin_unlock_irqrestore(&rrpriv->lock, flags);
1246 if (request_irq(dev->irq, rr_interrupt, IRQF_SHARED, dev->name, dev)) {
1247 printk(KERN_WARNING "%s: Requested IRQ %d is busy\n",
1248 dev->name, dev->irq);
1253 if ((ecode = rr_init1(dev)))
1256 /* Set the timer to switch to check for link beat and perhaps switch
1257 to an alternate media type. */
1258 init_timer(&rrpriv->timer);
1259 rrpriv->timer.expires = RUN_AT(5*HZ); /* 5 sec. watchdog */
1260 rrpriv->timer.data = (unsigned long)dev;
1261 rrpriv->timer.function = &rr_timer; /* timer handler */
1262 add_timer(&rrpriv->timer);
1264 netif_start_queue(dev);
1269 spin_lock_irqsave(&rrpriv->lock, flags);
1270 writel(readl(®s->HostCtrl)|HALT_NIC|RR_CLEAR_INT, ®s->HostCtrl);
1271 spin_unlock_irqrestore(&rrpriv->lock, flags);
1274 pci_free_consistent(pdev, sizeof(struct rr_info), rrpriv->info,
1276 rrpriv->info = NULL;
1278 if (rrpriv->rx_ctrl) {
1279 pci_free_consistent(pdev, sizeof(struct ring_ctrl),
1280 rrpriv->rx_ctrl, rrpriv->rx_ctrl_dma);
1281 rrpriv->rx_ctrl = NULL;
1284 netif_stop_queue(dev);
1290 static void rr_dump(struct net_device *dev)
1292 struct rr_private *rrpriv;
1293 struct rr_regs __iomem *regs;
1298 rrpriv = netdev_priv(dev);
1299 regs = rrpriv->regs;
1301 printk("%s: dumping NIC TX rings\n", dev->name);
1303 printk("RxPrd %08x, TxPrd %02x, EvtPrd %08x, TxPi %02x, TxCtrlPi %02x\n",
1304 readl(®s->RxPrd), readl(®s->TxPrd),
1305 readl(®s->EvtPrd), readl(®s->TxPi),
1306 rrpriv->info->tx_ctrl.pi);
1308 printk("Error code 0x%x\n", readl(®s->Fail1));
1310 index = (((readl(®s->EvtPrd) >> 8) & 0xff ) - 1) % EVT_RING_ENTRIES;
1311 cons = rrpriv->dirty_tx;
1312 printk("TX ring index %i, TX consumer %i\n",
1315 if (rrpriv->tx_skbuff[index]){
1316 len = min_t(int, 0x80, rrpriv->tx_skbuff[index]->len);
1317 printk("skbuff for index %i is valid - dumping data (0x%x bytes - DMA len 0x%x)\n", index, len, rrpriv->tx_ring[index].size);
1318 for (i = 0; i < len; i++){
1321 printk("%02x ", (unsigned char) rrpriv->tx_skbuff[index]->data[i]);
1326 if (rrpriv->tx_skbuff[cons]){
1327 len = min_t(int, 0x80, rrpriv->tx_skbuff[cons]->len);
1328 printk("skbuff for cons %i is valid - dumping data (0x%x bytes - skbuff len 0x%x)\n", cons, len, rrpriv->tx_skbuff[cons]->len);
1329 printk("mode 0x%x, size 0x%x,\n phys %08Lx, skbuff-addr %08lx, truesize 0x%x\n",
1330 rrpriv->tx_ring[cons].mode,
1331 rrpriv->tx_ring[cons].size,
1332 (unsigned long long) rrpriv->tx_ring[cons].addr.addrlo,
1333 (unsigned long)rrpriv->tx_skbuff[cons]->data,
1334 (unsigned int)rrpriv->tx_skbuff[cons]->truesize);
1335 for (i = 0; i < len; i++){
1338 printk("%02x ", (unsigned char)rrpriv->tx_ring[cons].size);
1343 printk("dumping TX ring info:\n");
1344 for (i = 0; i < TX_RING_ENTRIES; i++)
1345 printk("mode 0x%x, size 0x%x, phys-addr %08Lx\n",
1346 rrpriv->tx_ring[i].mode,
1347 rrpriv->tx_ring[i].size,
1348 (unsigned long long) rrpriv->tx_ring[i].addr.addrlo);
1353 static int rr_close(struct net_device *dev)
1355 struct rr_private *rrpriv;
1356 struct rr_regs __iomem *regs;
1357 unsigned long flags;
1361 netif_stop_queue(dev);
1363 rrpriv = netdev_priv(dev);
1364 regs = rrpriv->regs;
1367 * Lock to make sure we are not cleaning up while another CPU
1368 * is handling interrupts.
1370 spin_lock_irqsave(&rrpriv->lock, flags);
1372 tmp = readl(®s->HostCtrl);
1373 if (tmp & NIC_HALTED){
1374 printk("%s: NIC already halted\n", dev->name);
1377 tmp |= HALT_NIC | RR_CLEAR_INT;
1378 writel(tmp, ®s->HostCtrl);
1379 readl(®s->HostCtrl);
1382 rrpriv->fw_running = 0;
1384 del_timer_sync(&rrpriv->timer);
1386 writel(0, ®s->TxPi);
1387 writel(0, ®s->IpRxPi);
1389 writel(0, ®s->EvtCon);
1390 writel(0, ®s->EvtPrd);
1392 for (i = 0; i < CMD_RING_ENTRIES; i++)
1393 writel(0, ®s->CmdRing[i]);
1395 rrpriv->info->tx_ctrl.entries = 0;
1396 rrpriv->info->cmd_ctrl.pi = 0;
1397 rrpriv->info->evt_ctrl.pi = 0;
1398 rrpriv->rx_ctrl[4].entries = 0;
1400 rr_raz_tx(rrpriv, dev);
1401 rr_raz_rx(rrpriv, dev);
1403 pci_free_consistent(rrpriv->pci_dev, 256 * sizeof(struct ring_ctrl),
1404 rrpriv->rx_ctrl, rrpriv->rx_ctrl_dma);
1405 rrpriv->rx_ctrl = NULL;
1407 pci_free_consistent(rrpriv->pci_dev, sizeof(struct rr_info),
1408 rrpriv->info, rrpriv->info_dma);
1409 rrpriv->info = NULL;
1411 free_irq(dev->irq, dev);
1412 spin_unlock_irqrestore(&rrpriv->lock, flags);
1418 static int rr_start_xmit(struct sk_buff *skb, struct net_device *dev)
1420 struct rr_private *rrpriv = netdev_priv(dev);
1421 struct rr_regs __iomem *regs = rrpriv->regs;
1422 struct hippi_cb *hcb = (struct hippi_cb *) skb->cb;
1423 struct ring_ctrl *txctrl;
1424 unsigned long flags;
1425 u32 index, len = skb->len;
1427 struct sk_buff *new_skb;
1429 if (readl(®s->Mode) & FATAL_ERR)
1430 printk("error codes Fail1 %02x, Fail2 %02x\n",
1431 readl(®s->Fail1), readl(®s->Fail2));
1434 * We probably need to deal with tbusy here to prevent overruns.
1437 if (skb_headroom(skb) < 8){
1438 printk("incoming skb too small - reallocating\n");
1439 if (!(new_skb = dev_alloc_skb(len + 8))) {
1441 netif_wake_queue(dev);
1444 skb_reserve(new_skb, 8);
1445 skb_put(new_skb, len);
1446 skb_copy_from_linear_data(skb, new_skb->data, len);
1451 ifield = (u32 *)skb_push(skb, 8);
1454 ifield[1] = hcb->ifield;
1457 * We don't need the lock before we are actually going to start
1458 * fiddling with the control blocks.
1460 spin_lock_irqsave(&rrpriv->lock, flags);
1462 txctrl = &rrpriv->info->tx_ctrl;
1466 rrpriv->tx_skbuff[index] = skb;
1467 set_rraddr(&rrpriv->tx_ring[index].addr, pci_map_single(
1468 rrpriv->pci_dev, skb->data, len + 8, PCI_DMA_TODEVICE));
1469 rrpriv->tx_ring[index].size = len + 8; /* include IFIELD */
1470 rrpriv->tx_ring[index].mode = PACKET_START | PACKET_END;
1471 txctrl->pi = (index + 1) % TX_RING_ENTRIES;
1473 writel(txctrl->pi, ®s->TxPi);
1475 if (txctrl->pi == rrpriv->dirty_tx){
1476 rrpriv->tx_full = 1;
1477 netif_stop_queue(dev);
1480 spin_unlock_irqrestore(&rrpriv->lock, flags);
1482 dev->trans_start = jiffies;
1488 * Read the firmware out of the EEPROM and put it into the SRAM
1489 * (or from user space - later)
1491 * This operation requires the NIC to be halted and is performed with
1492 * interrupts disabled and with the spinlock hold.
1494 static int rr_load_firmware(struct net_device *dev)
1496 struct rr_private *rrpriv;
1497 struct rr_regs __iomem *regs;
1498 unsigned long eptr, segptr;
1500 u32 localctrl, sptr, len, tmp;
1501 u32 p2len, p2size, nr_seg, revision, io, sram_size;
1502 struct eeprom *hw = NULL;
1504 rrpriv = netdev_priv(dev);
1505 regs = rrpriv->regs;
1507 if (dev->flags & IFF_UP)
1510 if (!(readl(®s->HostCtrl) & NIC_HALTED)){
1511 printk("%s: Trying to load firmware to a running NIC.\n",
1516 localctrl = readl(®s->LocalCtrl);
1517 writel(0, ®s->LocalCtrl);
1519 writel(0, ®s->EvtPrd);
1520 writel(0, ®s->RxPrd);
1521 writel(0, ®s->TxPrd);
1524 * First wipe the entire SRAM, otherwise we might run into all
1525 * kinds of trouble ... sigh, this took almost all afternoon
1528 io = readl(®s->ExtIo);
1529 writel(0, ®s->ExtIo);
1530 sram_size = rr_read_eeprom_word(rrpriv, (void *)8);
1532 for (i = 200; i < sram_size / 4; i++){
1533 writel(i * 4, ®s->WinBase);
1535 writel(0, ®s->WinData);
1538 writel(io, ®s->ExtIo);
1541 eptr = (unsigned long)rr_read_eeprom_word(rrpriv,
1542 &hw->rncd_info.AddrRunCodeSegs);
1543 eptr = ((eptr & 0x1fffff) >> 3);
1545 p2len = rr_read_eeprom_word(rrpriv, (void *)(0x83*4));
1546 p2len = (p2len << 2);
1547 p2size = rr_read_eeprom_word(rrpriv, (void *)(0x84*4));
1548 p2size = ((p2size & 0x1fffff) >> 3);
1550 if ((eptr < p2size) || (eptr > (p2size + p2len))){
1551 printk("%s: eptr is invalid\n", dev->name);
1555 revision = rr_read_eeprom_word(rrpriv, &hw->manf.HeaderFmt);
1558 printk("%s: invalid firmware format (%i)\n",
1559 dev->name, revision);
1563 nr_seg = rr_read_eeprom_word(rrpriv, (void *)eptr);
1566 printk("%s: nr_seg %i\n", dev->name, nr_seg);
1569 for (i = 0; i < nr_seg; i++){
1570 sptr = rr_read_eeprom_word(rrpriv, (void *)eptr);
1572 len = rr_read_eeprom_word(rrpriv, (void *)eptr);
1574 segptr = (unsigned long)rr_read_eeprom_word(rrpriv, (void *)eptr);
1575 segptr = ((segptr & 0x1fffff) >> 3);
1578 printk("%s: segment %i, sram address %06x, length %04x, segptr %06x\n",
1579 dev->name, i, sptr, len, segptr);
1581 for (j = 0; j < len; j++){
1582 tmp = rr_read_eeprom_word(rrpriv, (void *)segptr);
1583 writel(sptr, ®s->WinBase);
1585 writel(tmp, ®s->WinData);
1593 writel(localctrl, ®s->LocalCtrl);
1599 static int rr_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
1601 struct rr_private *rrpriv;
1602 unsigned char *image, *oldimage;
1603 unsigned long flags;
1605 int error = -EOPNOTSUPP;
1607 rrpriv = netdev_priv(dev);
1611 if (!capable(CAP_SYS_RAWIO)){
1615 image = kmalloc(EEPROM_WORDS * sizeof(u32), GFP_KERNEL);
1617 printk(KERN_ERR "%s: Unable to allocate memory "
1618 "for EEPROM image\n", dev->name);
1623 if (rrpriv->fw_running){
1624 printk("%s: Firmware already running\n", dev->name);
1629 spin_lock_irqsave(&rrpriv->lock, flags);
1630 i = rr_read_eeprom(rrpriv, 0, image, EEPROM_BYTES);
1631 spin_unlock_irqrestore(&rrpriv->lock, flags);
1632 if (i != EEPROM_BYTES){
1633 printk(KERN_ERR "%s: Error reading EEPROM\n",
1638 error = copy_to_user(rq->ifr_data, image, EEPROM_BYTES);
1646 if (!capable(CAP_SYS_RAWIO)){
1650 image = kmalloc(EEPROM_WORDS * sizeof(u32), GFP_KERNEL);
1651 oldimage = kmalloc(EEPROM_WORDS * sizeof(u32), GFP_KERNEL);
1652 if (!image || !oldimage) {
1653 printk(KERN_ERR "%s: Unable to allocate memory "
1654 "for EEPROM image\n", dev->name);
1659 error = copy_from_user(image, rq->ifr_data, EEPROM_BYTES);
1665 if (rrpriv->fw_running){
1666 printk("%s: Firmware already running\n", dev->name);
1671 printk("%s: Updating EEPROM firmware\n", dev->name);
1673 spin_lock_irqsave(&rrpriv->lock, flags);
1674 error = write_eeprom(rrpriv, 0, image, EEPROM_BYTES);
1676 printk(KERN_ERR "%s: Error writing EEPROM\n",
1679 i = rr_read_eeprom(rrpriv, 0, oldimage, EEPROM_BYTES);
1680 spin_unlock_irqrestore(&rrpriv->lock, flags);
1682 if (i != EEPROM_BYTES)
1683 printk(KERN_ERR "%s: Error reading back EEPROM "
1684 "image\n", dev->name);
1686 error = memcmp(image, oldimage, EEPROM_BYTES);
1688 printk(KERN_ERR "%s: Error verifying EEPROM image\n",
1698 return put_user(0x52523032, (int __user *)rq->ifr_data);
1704 static struct pci_device_id rr_pci_tbl[] = {
1705 { PCI_VENDOR_ID_ESSENTIAL, PCI_DEVICE_ID_ESSENTIAL_ROADRUNNER,
1706 PCI_ANY_ID, PCI_ANY_ID, },
1709 MODULE_DEVICE_TABLE(pci, rr_pci_tbl);
1711 static struct pci_driver rr_driver = {
1713 .id_table = rr_pci_tbl,
1714 .probe = rr_init_one,
1715 .remove = __devexit_p(rr_remove_one),
1718 static int __init rr_init_module(void)
1720 return pci_register_driver(&rr_driver);
1723 static void __exit rr_cleanup_module(void)
1725 pci_unregister_driver(&rr_driver);
1728 module_init(rr_init_module);
1729 module_exit(rr_cleanup_module);
1733 * compile-command: "gcc -D__KERNEL__ -I../../include -Wall -Wstrict-prototypes -O2 -pipe -fomit-frame-pointer -fno-strength-reduce -m486 -malign-loops=2 -malign-jumps=2 -malign-functions=2 -DMODULE -DMODVERSIONS -include ../../include/linux/modversions.h -c rrunner.c"