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 * These are checked at init time to see if they are at least 256KB
83 * and increased to 256KB if they are not. This is done to avoid ending
84 * up with socket buffers smaller than the MTU size,
86 extern __u32 sysctl_wmem_max;
87 extern __u32 sysctl_rmem_max;
89 static int __devinit rr_init_one(struct pci_dev *pdev,
90 const struct pci_device_id *ent)
92 struct net_device *dev;
93 static int version_disp;
95 struct rr_private *rrpriv;
100 dev = alloc_hippi_dev(sizeof(struct rr_private));
104 ret = pci_enable_device(pdev);
110 rrpriv = netdev_priv(dev);
112 SET_NETDEV_DEV(dev, &pdev->dev);
114 if (pci_request_regions(pdev, "rrunner")) {
119 pci_set_drvdata(pdev, dev);
121 rrpriv->pci_dev = pdev;
123 spin_lock_init(&rrpriv->lock);
125 dev->irq = pdev->irq;
126 dev->open = &rr_open;
127 dev->hard_start_xmit = &rr_start_xmit;
128 dev->stop = &rr_close;
129 dev->get_stats = &rr_get_stats;
130 dev->do_ioctl = &rr_ioctl;
132 dev->base_addr = pci_resource_start(pdev, 0);
134 /* display version info if adapter is found */
136 /* set display flag to TRUE so that */
137 /* we only display this string ONCE */
142 pci_read_config_byte(pdev, PCI_LATENCY_TIMER, &pci_latency);
143 if (pci_latency <= 0x58){
145 pci_write_config_byte(pdev, PCI_LATENCY_TIMER, pci_latency);
148 pci_set_master(pdev);
150 printk(KERN_INFO "%s: Essential RoadRunner serial HIPPI "
151 "at 0x%08lx, irq %i, PCI latency %i\n", dev->name,
152 dev->base_addr, dev->irq, pci_latency);
155 * Remap the regs into kernel space.
158 rrpriv->regs = ioremap(dev->base_addr, 0x1000);
161 printk(KERN_ERR "%s: Unable to map I/O register, "
162 "RoadRunner will be disabled.\n", dev->name);
167 tmpptr = pci_alloc_consistent(pdev, TX_TOTAL_SIZE, &ring_dma);
168 rrpriv->tx_ring = tmpptr;
169 rrpriv->tx_ring_dma = ring_dma;
176 tmpptr = pci_alloc_consistent(pdev, RX_TOTAL_SIZE, &ring_dma);
177 rrpriv->rx_ring = tmpptr;
178 rrpriv->rx_ring_dma = ring_dma;
185 tmpptr = pci_alloc_consistent(pdev, EVT_RING_SIZE, &ring_dma);
186 rrpriv->evt_ring = tmpptr;
187 rrpriv->evt_ring_dma = ring_dma;
195 * Don't access any register before this point!
198 writel(readl(&rrpriv->regs->HostCtrl) | NO_SWAP,
199 &rrpriv->regs->HostCtrl);
202 * Need to add a case for little-endian 64-bit hosts here.
209 ret = register_netdev(dev);
216 pci_free_consistent(pdev, RX_TOTAL_SIZE, rrpriv->rx_ring,
217 rrpriv->rx_ring_dma);
219 pci_free_consistent(pdev, TX_TOTAL_SIZE, rrpriv->tx_ring,
220 rrpriv->tx_ring_dma);
222 iounmap(rrpriv->regs);
224 pci_release_regions(pdev);
225 pci_set_drvdata(pdev, NULL);
233 static void __devexit rr_remove_one (struct pci_dev *pdev)
235 struct net_device *dev = pci_get_drvdata(pdev);
238 struct rr_private *rr = netdev_priv(dev);
240 if (!(readl(&rr->regs->HostCtrl) & NIC_HALTED)){
241 printk(KERN_ERR "%s: trying to unload running NIC\n",
243 writel(HALT_NIC, &rr->regs->HostCtrl);
246 pci_free_consistent(pdev, EVT_RING_SIZE, rr->evt_ring,
248 pci_free_consistent(pdev, RX_TOTAL_SIZE, rr->rx_ring,
250 pci_free_consistent(pdev, TX_TOTAL_SIZE, rr->tx_ring,
252 unregister_netdev(dev);
255 pci_release_regions(pdev);
256 pci_disable_device(pdev);
257 pci_set_drvdata(pdev, NULL);
263 * Commands are considered to be slow, thus there is no reason to
266 static void rr_issue_cmd(struct rr_private *rrpriv, struct cmd *cmd)
268 struct rr_regs __iomem *regs;
273 * This is temporary - it will go away in the final version.
274 * We probably also want to make this function inline.
276 if (readl(®s->HostCtrl) & NIC_HALTED){
277 printk("issuing command for halted NIC, code 0x%x, "
278 "HostCtrl %08x\n", cmd->code, readl(®s->HostCtrl));
279 if (readl(®s->Mode) & FATAL_ERR)
280 printk("error codes Fail1 %02x, Fail2 %02x\n",
281 readl(®s->Fail1), readl(®s->Fail2));
284 idx = rrpriv->info->cmd_ctrl.pi;
286 writel(*(u32*)(cmd), ®s->CmdRing[idx]);
289 idx = (idx - 1) % CMD_RING_ENTRIES;
290 rrpriv->info->cmd_ctrl.pi = idx;
293 if (readl(®s->Mode) & FATAL_ERR)
294 printk("error code %02x\n", readl(®s->Fail1));
299 * Reset the board in a sensible manner. The NIC is already halted
300 * when we get here and a spin-lock is held.
302 static int rr_reset(struct net_device *dev)
304 struct rr_private *rrpriv;
305 struct rr_regs __iomem *regs;
306 struct eeprom *hw = NULL;
310 rrpriv = netdev_priv(dev);
313 rr_load_firmware(dev);
315 writel(0x01000000, ®s->TX_state);
316 writel(0xff800000, ®s->RX_state);
317 writel(0, ®s->AssistState);
318 writel(CLEAR_INTA, ®s->LocalCtrl);
319 writel(0x01, ®s->BrkPt);
320 writel(0, ®s->Timer);
321 writel(0, ®s->TimerRef);
322 writel(RESET_DMA, ®s->DmaReadState);
323 writel(RESET_DMA, ®s->DmaWriteState);
324 writel(0, ®s->DmaWriteHostHi);
325 writel(0, ®s->DmaWriteHostLo);
326 writel(0, ®s->DmaReadHostHi);
327 writel(0, ®s->DmaReadHostLo);
328 writel(0, ®s->DmaReadLen);
329 writel(0, ®s->DmaWriteLen);
330 writel(0, ®s->DmaWriteLcl);
331 writel(0, ®s->DmaWriteIPchecksum);
332 writel(0, ®s->DmaReadLcl);
333 writel(0, ®s->DmaReadIPchecksum);
334 writel(0, ®s->PciState);
335 #if (BITS_PER_LONG == 64) && defined __LITTLE_ENDIAN
336 writel(SWAP_DATA | PTR64BIT | PTR_WD_SWAP, ®s->Mode);
337 #elif (BITS_PER_LONG == 64)
338 writel(SWAP_DATA | PTR64BIT | PTR_WD_NOSWAP, ®s->Mode);
340 writel(SWAP_DATA | PTR32BIT | PTR_WD_NOSWAP, ®s->Mode);
345 * Don't worry, this is just black magic.
347 writel(0xdf000, ®s->RxBase);
348 writel(0xdf000, ®s->RxPrd);
349 writel(0xdf000, ®s->RxCon);
350 writel(0xce000, ®s->TxBase);
351 writel(0xce000, ®s->TxPrd);
352 writel(0xce000, ®s->TxCon);
353 writel(0, ®s->RxIndPro);
354 writel(0, ®s->RxIndCon);
355 writel(0, ®s->RxIndRef);
356 writel(0, ®s->TxIndPro);
357 writel(0, ®s->TxIndCon);
358 writel(0, ®s->TxIndRef);
359 writel(0xcc000, ®s->pad10[0]);
360 writel(0, ®s->DrCmndPro);
361 writel(0, ®s->DrCmndCon);
362 writel(0, ®s->DwCmndPro);
363 writel(0, ®s->DwCmndCon);
364 writel(0, ®s->DwCmndRef);
365 writel(0, ®s->DrDataPro);
366 writel(0, ®s->DrDataCon);
367 writel(0, ®s->DrDataRef);
368 writel(0, ®s->DwDataPro);
369 writel(0, ®s->DwDataCon);
370 writel(0, ®s->DwDataRef);
373 writel(0xffffffff, ®s->MbEvent);
374 writel(0, ®s->Event);
376 writel(0, ®s->TxPi);
377 writel(0, ®s->IpRxPi);
379 writel(0, ®s->EvtCon);
380 writel(0, ®s->EvtPrd);
382 rrpriv->info->evt_ctrl.pi = 0;
384 for (i = 0; i < CMD_RING_ENTRIES; i++)
385 writel(0, ®s->CmdRing[i]);
388 * Why 32 ? is this not cache line size dependent?
390 writel(RBURST_64|WBURST_64, ®s->PciState);
393 start_pc = rr_read_eeprom_word(rrpriv, &hw->rncd_info.FwStart);
396 printk("%s: Executing firmware at address 0x%06x\n",
397 dev->name, start_pc);
400 writel(start_pc + 0x800, ®s->Pc);
404 writel(start_pc, ®s->Pc);
412 * Read a string from the EEPROM.
414 static unsigned int rr_read_eeprom(struct rr_private *rrpriv,
415 unsigned long offset,
417 unsigned long length)
419 struct rr_regs __iomem *regs = rrpriv->regs;
420 u32 misc, io, host, i;
422 io = readl(®s->ExtIo);
423 writel(0, ®s->ExtIo);
424 misc = readl(®s->LocalCtrl);
425 writel(0, ®s->LocalCtrl);
426 host = readl(®s->HostCtrl);
427 writel(host | HALT_NIC, ®s->HostCtrl);
430 for (i = 0; i < length; i++){
431 writel((EEPROM_BASE + ((offset+i) << 3)), ®s->WinBase);
433 buf[i] = (readl(®s->WinData) >> 24) & 0xff;
437 writel(host, ®s->HostCtrl);
438 writel(misc, ®s->LocalCtrl);
439 writel(io, ®s->ExtIo);
446 * Shortcut to read one word (4 bytes) out of the EEPROM and convert
447 * it to our CPU byte-order.
449 static u32 rr_read_eeprom_word(struct rr_private *rrpriv,
454 if ((rr_read_eeprom(rrpriv, (unsigned long)offset,
455 (char *)&word, 4) == 4))
456 return be32_to_cpu(word);
462 * Write a string to the EEPROM.
464 * This is only called when the firmware is not running.
466 static unsigned int write_eeprom(struct rr_private *rrpriv,
467 unsigned long offset,
469 unsigned long length)
471 struct rr_regs __iomem *regs = rrpriv->regs;
472 u32 misc, io, data, i, j, ready, error = 0;
474 io = readl(®s->ExtIo);
475 writel(0, ®s->ExtIo);
476 misc = readl(®s->LocalCtrl);
477 writel(ENABLE_EEPROM_WRITE, ®s->LocalCtrl);
480 for (i = 0; i < length; i++){
481 writel((EEPROM_BASE + ((offset+i) << 3)), ®s->WinBase);
485 * Only try to write the data if it is not the same
488 if ((readl(®s->WinData) & 0xff000000) != data){
489 writel(data, ®s->WinData);
495 if ((readl(®s->WinData) & 0xff000000) ==
500 printk("data mismatch: %08x, "
501 "WinData %08x\n", data,
502 readl(®s->WinData));
510 writel(misc, ®s->LocalCtrl);
511 writel(io, ®s->ExtIo);
518 static int __devinit rr_init(struct net_device *dev)
520 struct rr_private *rrpriv;
521 struct rr_regs __iomem *regs;
522 struct eeprom *hw = NULL;
526 rrpriv = netdev_priv(dev);
529 rev = readl(®s->FwRev);
530 rrpriv->fw_rev = rev;
531 if (rev > 0x00020024)
532 printk(" Firmware revision: %i.%i.%i\n", (rev >> 16),
533 ((rev >> 8) & 0xff), (rev & 0xff));
534 else if (rev >= 0x00020000) {
535 printk(" Firmware revision: %i.%i.%i (2.0.37 or "
536 "later is recommended)\n", (rev >> 16),
537 ((rev >> 8) & 0xff), (rev & 0xff));
539 printk(" Firmware revision too old: %i.%i.%i, please "
540 "upgrade to 2.0.37 or later.\n",
541 (rev >> 16), ((rev >> 8) & 0xff), (rev & 0xff));
545 printk(" Maximum receive rings %i\n", readl(®s->MaxRxRng));
549 * Read the hardware address from the eeprom. The HW address
550 * is not really necessary for HIPPI but awfully convenient.
551 * The pointer arithmetic to put it in dev_addr is ugly, but
552 * Donald Becker does it this way for the GigE version of this
553 * card and it's shorter and more portable than any
554 * other method I've seen. -VAL
557 *(u16 *)(dev->dev_addr) =
558 htons(rr_read_eeprom_word(rrpriv, &hw->manf.BoardULA));
559 *(u32 *)(dev->dev_addr+2) =
560 htonl(rr_read_eeprom_word(rrpriv, &hw->manf.BoardULA[4]));
564 for (i = 0; i < 5; i++)
565 printk("%2.2x:", dev->dev_addr[i]);
566 printk("%2.2x\n", dev->dev_addr[i]);
568 sram_size = rr_read_eeprom_word(rrpriv, (void *)8);
569 printk(" SRAM size 0x%06x\n", sram_size);
571 if (sysctl_rmem_max < 262144){
572 printk(" Receive socket buffer limit too low (%i), "
573 "setting to 262144\n", sysctl_rmem_max);
574 sysctl_rmem_max = 262144;
577 if (sysctl_wmem_max < 262144){
578 printk(" Transmit socket buffer limit too low (%i), "
579 "setting to 262144\n", sysctl_wmem_max);
580 sysctl_wmem_max = 262144;
587 static int rr_init1(struct net_device *dev)
589 struct rr_private *rrpriv;
590 struct rr_regs __iomem *regs;
591 unsigned long myjif, flags;
597 rrpriv = netdev_priv(dev);
600 spin_lock_irqsave(&rrpriv->lock, flags);
602 hostctrl = readl(®s->HostCtrl);
603 writel(hostctrl | HALT_NIC | RR_CLEAR_INT, ®s->HostCtrl);
606 if (hostctrl & PARITY_ERR){
607 printk("%s: Parity error halting NIC - this is serious!\n",
609 spin_unlock_irqrestore(&rrpriv->lock, flags);
614 set_rxaddr(regs, rrpriv->rx_ctrl_dma);
615 set_infoaddr(regs, rrpriv->info_dma);
617 rrpriv->info->evt_ctrl.entry_size = sizeof(struct event);
618 rrpriv->info->evt_ctrl.entries = EVT_RING_ENTRIES;
619 rrpriv->info->evt_ctrl.mode = 0;
620 rrpriv->info->evt_ctrl.pi = 0;
621 set_rraddr(&rrpriv->info->evt_ctrl.rngptr, rrpriv->evt_ring_dma);
623 rrpriv->info->cmd_ctrl.entry_size = sizeof(struct cmd);
624 rrpriv->info->cmd_ctrl.entries = CMD_RING_ENTRIES;
625 rrpriv->info->cmd_ctrl.mode = 0;
626 rrpriv->info->cmd_ctrl.pi = 15;
628 for (i = 0; i < CMD_RING_ENTRIES; i++) {
629 writel(0, ®s->CmdRing[i]);
632 for (i = 0; i < TX_RING_ENTRIES; i++) {
633 rrpriv->tx_ring[i].size = 0;
634 set_rraddr(&rrpriv->tx_ring[i].addr, 0);
635 rrpriv->tx_skbuff[i] = NULL;
637 rrpriv->info->tx_ctrl.entry_size = sizeof(struct tx_desc);
638 rrpriv->info->tx_ctrl.entries = TX_RING_ENTRIES;
639 rrpriv->info->tx_ctrl.mode = 0;
640 rrpriv->info->tx_ctrl.pi = 0;
641 set_rraddr(&rrpriv->info->tx_ctrl.rngptr, rrpriv->tx_ring_dma);
644 * Set dirty_tx before we start receiving interrupts, otherwise
645 * the interrupt handler might think it is supposed to process
646 * tx ints before we are up and running, which may cause a null
647 * pointer access in the int handler.
651 rrpriv->dirty_rx = rrpriv->dirty_tx = 0;
656 writel(0x5000, ®s->ConRetry);
657 writel(0x100, ®s->ConRetryTmr);
658 writel(0x500000, ®s->ConTmout);
659 writel(0x60, ®s->IntrTmr);
660 writel(0x500000, ®s->TxDataMvTimeout);
661 writel(0x200000, ®s->RxDataMvTimeout);
662 writel(0x80, ®s->WriteDmaThresh);
663 writel(0x80, ®s->ReadDmaThresh);
665 rrpriv->fw_running = 0;
668 hostctrl &= ~(HALT_NIC | INVALID_INST_B | PARITY_ERR);
669 writel(hostctrl, ®s->HostCtrl);
672 spin_unlock_irqrestore(&rrpriv->lock, flags);
674 for (i = 0; i < RX_RING_ENTRIES; i++) {
678 rrpriv->rx_ring[i].mode = 0;
679 skb = alloc_skb(dev->mtu + HIPPI_HLEN, GFP_ATOMIC);
681 printk(KERN_WARNING "%s: Unable to allocate memory "
682 "for receive ring - halting NIC\n", dev->name);
686 rrpriv->rx_skbuff[i] = skb;
687 addr = pci_map_single(rrpriv->pci_dev, skb->data,
688 dev->mtu + HIPPI_HLEN, PCI_DMA_FROMDEVICE);
690 * Sanity test to see if we conflict with the DMA
691 * limitations of the Roadrunner.
693 if ((((unsigned long)skb->data) & 0xfff) > ~65320)
694 printk("skb alloc error\n");
696 set_rraddr(&rrpriv->rx_ring[i].addr, addr);
697 rrpriv->rx_ring[i].size = dev->mtu + HIPPI_HLEN;
700 rrpriv->rx_ctrl[4].entry_size = sizeof(struct rx_desc);
701 rrpriv->rx_ctrl[4].entries = RX_RING_ENTRIES;
702 rrpriv->rx_ctrl[4].mode = 8;
703 rrpriv->rx_ctrl[4].pi = 0;
705 set_rraddr(&rrpriv->rx_ctrl[4].rngptr, rrpriv->rx_ring_dma);
710 * Now start the FirmWare.
712 cmd.code = C_START_FW;
716 rr_issue_cmd(rrpriv, &cmd);
719 * Give the FirmWare time to chew on the `get running' command.
721 myjif = jiffies + 5 * HZ;
722 while (time_before(jiffies, myjif) && !rrpriv->fw_running)
725 netif_start_queue(dev);
731 * We might have gotten here because we are out of memory,
732 * make sure we release everything we allocated before failing
734 for (i = 0; i < RX_RING_ENTRIES; i++) {
735 struct sk_buff *skb = rrpriv->rx_skbuff[i];
738 pci_unmap_single(rrpriv->pci_dev,
739 rrpriv->rx_ring[i].addr.addrlo,
740 dev->mtu + HIPPI_HLEN,
742 rrpriv->rx_ring[i].size = 0;
743 set_rraddr(&rrpriv->rx_ring[i].addr, 0);
745 rrpriv->rx_skbuff[i] = NULL;
753 * All events are considered to be slow (RX/TX ints do not generate
754 * events) and are handled here, outside the main interrupt handler,
755 * to reduce the size of the handler.
757 static u32 rr_handle_event(struct net_device *dev, u32 prodidx, u32 eidx)
759 struct rr_private *rrpriv;
760 struct rr_regs __iomem *regs;
763 rrpriv = netdev_priv(dev);
766 while (prodidx != eidx){
767 switch (rrpriv->evt_ring[eidx].code){
769 tmp = readl(®s->FwRev);
770 printk(KERN_INFO "%s: Firmware revision %i.%i.%i "
771 "up and running\n", dev->name,
772 (tmp >> 16), ((tmp >> 8) & 0xff), (tmp & 0xff));
773 rrpriv->fw_running = 1;
774 writel(RX_RING_ENTRIES - 1, ®s->IpRxPi);
778 printk(KERN_INFO "%s: Optical link ON\n", dev->name);
781 printk(KERN_INFO "%s: Optical link OFF\n", dev->name);
784 printk(KERN_WARNING "%s: RX data not moving\n",
788 printk(KERN_INFO "%s: The watchdog is here to see "
792 printk(KERN_ERR "%s: HIPPI Internal NIC error\n",
794 writel(readl(®s->HostCtrl)|HALT_NIC|RR_CLEAR_INT,
799 printk(KERN_ERR "%s: Host software error\n",
801 writel(readl(®s->HostCtrl)|HALT_NIC|RR_CLEAR_INT,
809 printk(KERN_WARNING "%s: Connection rejected\n",
811 rrpriv->stats.tx_aborted_errors++;
814 printk(KERN_WARNING "%s: Connection timeout\n",
818 printk(KERN_WARNING "%s: HIPPI disconnect error\n",
820 rrpriv->stats.tx_aborted_errors++;
823 printk(KERN_ERR "%s: HIPPI Internal Parity error\n",
825 writel(readl(®s->HostCtrl)|HALT_NIC|RR_CLEAR_INT,
830 printk(KERN_WARNING "%s: Transmitter idle\n",
834 printk(KERN_WARNING "%s: Link lost during transmit\n",
836 rrpriv->stats.tx_aborted_errors++;
837 writel(readl(®s->HostCtrl)|HALT_NIC|RR_CLEAR_INT,
842 printk(KERN_ERR "%s: Invalid send ring block\n",
844 writel(readl(®s->HostCtrl)|HALT_NIC|RR_CLEAR_INT,
849 printk(KERN_ERR "%s: Invalid send buffer address\n",
851 writel(readl(®s->HostCtrl)|HALT_NIC|RR_CLEAR_INT,
856 printk(KERN_ERR "%s: Invalid descriptor address\n",
858 writel(readl(®s->HostCtrl)|HALT_NIC|RR_CLEAR_INT,
866 printk(KERN_INFO "%s: Receive ring full\n", dev->name);
870 printk(KERN_WARNING "%s: Receive parity error\n",
874 printk(KERN_WARNING "%s: Receive LLRC error\n",
878 printk(KERN_WARNING "%s: Receive packet length "
879 "error\n", dev->name);
882 printk(KERN_WARNING "%s: Data checksum error\n",
886 printk(KERN_WARNING "%s: Unexpected short burst "
887 "error\n", dev->name);
890 printk(KERN_WARNING "%s: Recv. state transition"
891 " error\n", dev->name);
894 printk(KERN_WARNING "%s: Unexpected data error\n",
898 printk(KERN_WARNING "%s: Link lost error\n",
902 printk(KERN_WARNING "%s: Framming Error\n",
906 printk(KERN_WARNING "%s: Flag sync. lost during"
907 "packet\n", dev->name);
910 printk(KERN_ERR "%s: Invalid receive buffer "
911 "address\n", dev->name);
912 writel(readl(®s->HostCtrl)|HALT_NIC|RR_CLEAR_INT,
917 printk(KERN_ERR "%s: Invalid receive descriptor "
918 "address\n", dev->name);
919 writel(readl(®s->HostCtrl)|HALT_NIC|RR_CLEAR_INT,
924 printk(KERN_ERR "%s: Invalid ring block\n",
926 writel(readl(®s->HostCtrl)|HALT_NIC|RR_CLEAR_INT,
931 /* Label packet to be dropped.
932 * Actual dropping occurs in rx
935 * The index of packet we get to drop is
936 * the index of the packet following
937 * the bad packet. -kbf
940 u16 index = rrpriv->evt_ring[eidx].index;
941 index = (index + (RX_RING_ENTRIES - 1)) %
943 rrpriv->rx_ring[index].mode |=
944 (PACKET_BAD | PACKET_END);
948 printk(KERN_WARNING "%s: Unhandled event 0x%02x\n",
949 dev->name, rrpriv->evt_ring[eidx].code);
951 eidx = (eidx + 1) % EVT_RING_ENTRIES;
954 rrpriv->info->evt_ctrl.pi = eidx;
960 static void rx_int(struct net_device *dev, u32 rxlimit, u32 index)
962 struct rr_private *rrpriv = netdev_priv(dev);
963 struct rr_regs __iomem *regs = rrpriv->regs;
966 struct rx_desc *desc;
969 desc = &(rrpriv->rx_ring[index]);
970 pkt_len = desc->size;
972 printk("index %i, rxlimit %i\n", index, rxlimit);
973 printk("len %x, mode %x\n", pkt_len, desc->mode);
975 if ( (rrpriv->rx_ring[index].mode & PACKET_BAD) == PACKET_BAD){
976 rrpriv->stats.rx_dropped++;
981 struct sk_buff *skb, *rx_skb;
983 rx_skb = rrpriv->rx_skbuff[index];
985 if (pkt_len < PKT_COPY_THRESHOLD) {
986 skb = alloc_skb(pkt_len, GFP_ATOMIC);
988 printk(KERN_WARNING "%s: Unable to allocate skb (%i bytes), deferring packet\n", dev->name, pkt_len);
989 rrpriv->stats.rx_dropped++;
992 pci_dma_sync_single_for_cpu(rrpriv->pci_dev,
997 memcpy(skb_put(skb, pkt_len),
998 rx_skb->data, pkt_len);
1000 pci_dma_sync_single_for_device(rrpriv->pci_dev,
1003 PCI_DMA_FROMDEVICE);
1006 struct sk_buff *newskb;
1008 newskb = alloc_skb(dev->mtu + HIPPI_HLEN,
1013 pci_unmap_single(rrpriv->pci_dev,
1014 desc->addr.addrlo, dev->mtu +
1015 HIPPI_HLEN, PCI_DMA_FROMDEVICE);
1017 skb_put(skb, pkt_len);
1018 rrpriv->rx_skbuff[index] = newskb;
1019 addr = pci_map_single(rrpriv->pci_dev,
1021 dev->mtu + HIPPI_HLEN,
1022 PCI_DMA_FROMDEVICE);
1023 set_rraddr(&desc->addr, addr);
1025 printk("%s: Out of memory, deferring "
1026 "packet\n", dev->name);
1027 rrpriv->stats.rx_dropped++;
1031 skb->protocol = hippi_type_trans(skb, dev);
1033 netif_rx(skb); /* send it up */
1035 dev->last_rx = jiffies;
1036 rrpriv->stats.rx_packets++;
1037 rrpriv->stats.rx_bytes += pkt_len;
1041 desc->size = dev->mtu + HIPPI_HLEN;
1043 if ((index & 7) == 7)
1044 writel(index, ®s->IpRxPi);
1046 index = (index + 1) % RX_RING_ENTRIES;
1047 } while(index != rxlimit);
1049 rrpriv->cur_rx = index;
1054 static irqreturn_t rr_interrupt(int irq, void *dev_id)
1056 struct rr_private *rrpriv;
1057 struct rr_regs __iomem *regs;
1058 struct net_device *dev = (struct net_device *)dev_id;
1059 u32 prodidx, rxindex, eidx, txcsmr, rxlimit, txcon;
1061 rrpriv = netdev_priv(dev);
1062 regs = rrpriv->regs;
1064 if (!(readl(®s->HostCtrl) & RR_INT))
1067 spin_lock(&rrpriv->lock);
1069 prodidx = readl(®s->EvtPrd);
1070 txcsmr = (prodidx >> 8) & 0xff;
1071 rxlimit = (prodidx >> 16) & 0xff;
1075 printk("%s: interrupt, prodidx = %i, eidx = %i\n", dev->name,
1076 prodidx, rrpriv->info->evt_ctrl.pi);
1079 * Order here is important. We must handle events
1080 * before doing anything else in order to catch
1081 * such things as LLRC errors, etc -kbf
1084 eidx = rrpriv->info->evt_ctrl.pi;
1085 if (prodidx != eidx)
1086 eidx = rr_handle_event(dev, prodidx, eidx);
1088 rxindex = rrpriv->cur_rx;
1089 if (rxindex != rxlimit)
1090 rx_int(dev, rxlimit, rxindex);
1092 txcon = rrpriv->dirty_tx;
1093 if (txcsmr != txcon) {
1095 /* Due to occational firmware TX producer/consumer out
1096 * of sync. error need to check entry in ring -kbf
1098 if(rrpriv->tx_skbuff[txcon]){
1099 struct tx_desc *desc;
1100 struct sk_buff *skb;
1102 desc = &(rrpriv->tx_ring[txcon]);
1103 skb = rrpriv->tx_skbuff[txcon];
1105 rrpriv->stats.tx_packets++;
1106 rrpriv->stats.tx_bytes += skb->len;
1108 pci_unmap_single(rrpriv->pci_dev,
1109 desc->addr.addrlo, skb->len,
1111 dev_kfree_skb_irq(skb);
1113 rrpriv->tx_skbuff[txcon] = NULL;
1115 set_rraddr(&rrpriv->tx_ring[txcon].addr, 0);
1118 txcon = (txcon + 1) % TX_RING_ENTRIES;
1119 } while (txcsmr != txcon);
1122 rrpriv->dirty_tx = txcon;
1123 if (rrpriv->tx_full && rr_if_busy(dev) &&
1124 (((rrpriv->info->tx_ctrl.pi + 1) % TX_RING_ENTRIES)
1125 != rrpriv->dirty_tx)){
1126 rrpriv->tx_full = 0;
1127 netif_wake_queue(dev);
1131 eidx |= ((txcsmr << 8) | (rxlimit << 16));
1132 writel(eidx, ®s->EvtCon);
1135 spin_unlock(&rrpriv->lock);
1139 static inline void rr_raz_tx(struct rr_private *rrpriv,
1140 struct net_device *dev)
1144 for (i = 0; i < TX_RING_ENTRIES; i++) {
1145 struct sk_buff *skb = rrpriv->tx_skbuff[i];
1148 struct tx_desc *desc = &(rrpriv->tx_ring[i]);
1150 pci_unmap_single(rrpriv->pci_dev, desc->addr.addrlo,
1151 skb->len, PCI_DMA_TODEVICE);
1153 set_rraddr(&desc->addr, 0);
1155 rrpriv->tx_skbuff[i] = NULL;
1161 static inline void rr_raz_rx(struct rr_private *rrpriv,
1162 struct net_device *dev)
1166 for (i = 0; i < RX_RING_ENTRIES; i++) {
1167 struct sk_buff *skb = rrpriv->rx_skbuff[i];
1170 struct rx_desc *desc = &(rrpriv->rx_ring[i]);
1172 pci_unmap_single(rrpriv->pci_dev, desc->addr.addrlo,
1173 dev->mtu + HIPPI_HLEN, PCI_DMA_FROMDEVICE);
1175 set_rraddr(&desc->addr, 0);
1177 rrpriv->rx_skbuff[i] = NULL;
1182 static void rr_timer(unsigned long data)
1184 struct net_device *dev = (struct net_device *)data;
1185 struct rr_private *rrpriv = netdev_priv(dev);
1186 struct rr_regs __iomem *regs = rrpriv->regs;
1187 unsigned long flags;
1189 if (readl(®s->HostCtrl) & NIC_HALTED){
1190 printk("%s: Restarting nic\n", dev->name);
1191 memset(rrpriv->rx_ctrl, 0, 256 * sizeof(struct ring_ctrl));
1192 memset(rrpriv->info, 0, sizeof(struct rr_info));
1195 rr_raz_tx(rrpriv, dev);
1196 rr_raz_rx(rrpriv, dev);
1198 if (rr_init1(dev)) {
1199 spin_lock_irqsave(&rrpriv->lock, flags);
1200 writel(readl(®s->HostCtrl)|HALT_NIC|RR_CLEAR_INT,
1202 spin_unlock_irqrestore(&rrpriv->lock, flags);
1205 rrpriv->timer.expires = RUN_AT(5*HZ);
1206 add_timer(&rrpriv->timer);
1210 static int rr_open(struct net_device *dev)
1212 struct rr_private *rrpriv = netdev_priv(dev);
1213 struct pci_dev *pdev = rrpriv->pci_dev;
1214 struct rr_regs __iomem *regs;
1216 unsigned long flags;
1217 dma_addr_t dma_addr;
1219 regs = rrpriv->regs;
1221 if (rrpriv->fw_rev < 0x00020000) {
1222 printk(KERN_WARNING "%s: trying to configure device with "
1223 "obsolete firmware\n", dev->name);
1228 rrpriv->rx_ctrl = pci_alloc_consistent(pdev,
1229 256 * sizeof(struct ring_ctrl),
1231 if (!rrpriv->rx_ctrl) {
1235 rrpriv->rx_ctrl_dma = dma_addr;
1236 memset(rrpriv->rx_ctrl, 0, 256*sizeof(struct ring_ctrl));
1238 rrpriv->info = pci_alloc_consistent(pdev, sizeof(struct rr_info),
1240 if (!rrpriv->info) {
1244 rrpriv->info_dma = dma_addr;
1245 memset(rrpriv->info, 0, sizeof(struct rr_info));
1248 spin_lock_irqsave(&rrpriv->lock, flags);
1249 writel(readl(®s->HostCtrl)|HALT_NIC|RR_CLEAR_INT, ®s->HostCtrl);
1250 readl(®s->HostCtrl);
1251 spin_unlock_irqrestore(&rrpriv->lock, flags);
1253 if (request_irq(dev->irq, rr_interrupt, IRQF_SHARED, dev->name, dev)) {
1254 printk(KERN_WARNING "%s: Requested IRQ %d is busy\n",
1255 dev->name, dev->irq);
1260 if ((ecode = rr_init1(dev)))
1263 /* Set the timer to switch to check for link beat and perhaps switch
1264 to an alternate media type. */
1265 init_timer(&rrpriv->timer);
1266 rrpriv->timer.expires = RUN_AT(5*HZ); /* 5 sec. watchdog */
1267 rrpriv->timer.data = (unsigned long)dev;
1268 rrpriv->timer.function = &rr_timer; /* timer handler */
1269 add_timer(&rrpriv->timer);
1271 netif_start_queue(dev);
1276 spin_lock_irqsave(&rrpriv->lock, flags);
1277 writel(readl(®s->HostCtrl)|HALT_NIC|RR_CLEAR_INT, ®s->HostCtrl);
1278 spin_unlock_irqrestore(&rrpriv->lock, flags);
1281 pci_free_consistent(pdev, sizeof(struct rr_info), rrpriv->info,
1283 rrpriv->info = NULL;
1285 if (rrpriv->rx_ctrl) {
1286 pci_free_consistent(pdev, sizeof(struct ring_ctrl),
1287 rrpriv->rx_ctrl, rrpriv->rx_ctrl_dma);
1288 rrpriv->rx_ctrl = NULL;
1291 netif_stop_queue(dev);
1297 static void rr_dump(struct net_device *dev)
1299 struct rr_private *rrpriv;
1300 struct rr_regs __iomem *regs;
1305 rrpriv = netdev_priv(dev);
1306 regs = rrpriv->regs;
1308 printk("%s: dumping NIC TX rings\n", dev->name);
1310 printk("RxPrd %08x, TxPrd %02x, EvtPrd %08x, TxPi %02x, TxCtrlPi %02x\n",
1311 readl(®s->RxPrd), readl(®s->TxPrd),
1312 readl(®s->EvtPrd), readl(®s->TxPi),
1313 rrpriv->info->tx_ctrl.pi);
1315 printk("Error code 0x%x\n", readl(®s->Fail1));
1317 index = (((readl(®s->EvtPrd) >> 8) & 0xff ) - 1) % EVT_RING_ENTRIES;
1318 cons = rrpriv->dirty_tx;
1319 printk("TX ring index %i, TX consumer %i\n",
1322 if (rrpriv->tx_skbuff[index]){
1323 len = min_t(int, 0x80, rrpriv->tx_skbuff[index]->len);
1324 printk("skbuff for index %i is valid - dumping data (0x%x bytes - DMA len 0x%x)\n", index, len, rrpriv->tx_ring[index].size);
1325 for (i = 0; i < len; i++){
1328 printk("%02x ", (unsigned char) rrpriv->tx_skbuff[index]->data[i]);
1333 if (rrpriv->tx_skbuff[cons]){
1334 len = min_t(int, 0x80, rrpriv->tx_skbuff[cons]->len);
1335 printk("skbuff for cons %i is valid - dumping data (0x%x bytes - skbuff len 0x%x)\n", cons, len, rrpriv->tx_skbuff[cons]->len);
1336 printk("mode 0x%x, size 0x%x,\n phys %08Lx, skbuff-addr %08lx, truesize 0x%x\n",
1337 rrpriv->tx_ring[cons].mode,
1338 rrpriv->tx_ring[cons].size,
1339 (unsigned long long) rrpriv->tx_ring[cons].addr.addrlo,
1340 (unsigned long)rrpriv->tx_skbuff[cons]->data,
1341 (unsigned int)rrpriv->tx_skbuff[cons]->truesize);
1342 for (i = 0; i < len; i++){
1345 printk("%02x ", (unsigned char)rrpriv->tx_ring[cons].size);
1350 printk("dumping TX ring info:\n");
1351 for (i = 0; i < TX_RING_ENTRIES; i++)
1352 printk("mode 0x%x, size 0x%x, phys-addr %08Lx\n",
1353 rrpriv->tx_ring[i].mode,
1354 rrpriv->tx_ring[i].size,
1355 (unsigned long long) rrpriv->tx_ring[i].addr.addrlo);
1360 static int rr_close(struct net_device *dev)
1362 struct rr_private *rrpriv;
1363 struct rr_regs __iomem *regs;
1364 unsigned long flags;
1368 netif_stop_queue(dev);
1370 rrpriv = netdev_priv(dev);
1371 regs = rrpriv->regs;
1374 * Lock to make sure we are not cleaning up while another CPU
1375 * is handling interrupts.
1377 spin_lock_irqsave(&rrpriv->lock, flags);
1379 tmp = readl(®s->HostCtrl);
1380 if (tmp & NIC_HALTED){
1381 printk("%s: NIC already halted\n", dev->name);
1384 tmp |= HALT_NIC | RR_CLEAR_INT;
1385 writel(tmp, ®s->HostCtrl);
1386 readl(®s->HostCtrl);
1389 rrpriv->fw_running = 0;
1391 del_timer_sync(&rrpriv->timer);
1393 writel(0, ®s->TxPi);
1394 writel(0, ®s->IpRxPi);
1396 writel(0, ®s->EvtCon);
1397 writel(0, ®s->EvtPrd);
1399 for (i = 0; i < CMD_RING_ENTRIES; i++)
1400 writel(0, ®s->CmdRing[i]);
1402 rrpriv->info->tx_ctrl.entries = 0;
1403 rrpriv->info->cmd_ctrl.pi = 0;
1404 rrpriv->info->evt_ctrl.pi = 0;
1405 rrpriv->rx_ctrl[4].entries = 0;
1407 rr_raz_tx(rrpriv, dev);
1408 rr_raz_rx(rrpriv, dev);
1410 pci_free_consistent(rrpriv->pci_dev, 256 * sizeof(struct ring_ctrl),
1411 rrpriv->rx_ctrl, rrpriv->rx_ctrl_dma);
1412 rrpriv->rx_ctrl = NULL;
1414 pci_free_consistent(rrpriv->pci_dev, sizeof(struct rr_info),
1415 rrpriv->info, rrpriv->info_dma);
1416 rrpriv->info = NULL;
1418 free_irq(dev->irq, dev);
1419 spin_unlock_irqrestore(&rrpriv->lock, flags);
1425 static int rr_start_xmit(struct sk_buff *skb, struct net_device *dev)
1427 struct rr_private *rrpriv = netdev_priv(dev);
1428 struct rr_regs __iomem *regs = rrpriv->regs;
1429 struct hippi_cb *hcb = (struct hippi_cb *) skb->cb;
1430 struct ring_ctrl *txctrl;
1431 unsigned long flags;
1432 u32 index, len = skb->len;
1434 struct sk_buff *new_skb;
1436 if (readl(®s->Mode) & FATAL_ERR)
1437 printk("error codes Fail1 %02x, Fail2 %02x\n",
1438 readl(®s->Fail1), readl(®s->Fail2));
1441 * We probably need to deal with tbusy here to prevent overruns.
1444 if (skb_headroom(skb) < 8){
1445 printk("incoming skb too small - reallocating\n");
1446 if (!(new_skb = dev_alloc_skb(len + 8))) {
1448 netif_wake_queue(dev);
1451 skb_reserve(new_skb, 8);
1452 skb_put(new_skb, len);
1453 skb_copy_from_linear_data(skb, new_skb->data, len);
1458 ifield = (u32 *)skb_push(skb, 8);
1461 ifield[1] = hcb->ifield;
1464 * We don't need the lock before we are actually going to start
1465 * fiddling with the control blocks.
1467 spin_lock_irqsave(&rrpriv->lock, flags);
1469 txctrl = &rrpriv->info->tx_ctrl;
1473 rrpriv->tx_skbuff[index] = skb;
1474 set_rraddr(&rrpriv->tx_ring[index].addr, pci_map_single(
1475 rrpriv->pci_dev, skb->data, len + 8, PCI_DMA_TODEVICE));
1476 rrpriv->tx_ring[index].size = len + 8; /* include IFIELD */
1477 rrpriv->tx_ring[index].mode = PACKET_START | PACKET_END;
1478 txctrl->pi = (index + 1) % TX_RING_ENTRIES;
1480 writel(txctrl->pi, ®s->TxPi);
1482 if (txctrl->pi == rrpriv->dirty_tx){
1483 rrpriv->tx_full = 1;
1484 netif_stop_queue(dev);
1487 spin_unlock_irqrestore(&rrpriv->lock, flags);
1489 dev->trans_start = jiffies;
1494 static struct net_device_stats *rr_get_stats(struct net_device *dev)
1496 struct rr_private *rrpriv;
1498 rrpriv = netdev_priv(dev);
1500 return(&rrpriv->stats);
1505 * Read the firmware out of the EEPROM and put it into the SRAM
1506 * (or from user space - later)
1508 * This operation requires the NIC to be halted and is performed with
1509 * interrupts disabled and with the spinlock hold.
1511 static int rr_load_firmware(struct net_device *dev)
1513 struct rr_private *rrpriv;
1514 struct rr_regs __iomem *regs;
1515 unsigned long eptr, segptr;
1517 u32 localctrl, sptr, len, tmp;
1518 u32 p2len, p2size, nr_seg, revision, io, sram_size;
1519 struct eeprom *hw = NULL;
1521 rrpriv = netdev_priv(dev);
1522 regs = rrpriv->regs;
1524 if (dev->flags & IFF_UP)
1527 if (!(readl(®s->HostCtrl) & NIC_HALTED)){
1528 printk("%s: Trying to load firmware to a running NIC.\n",
1533 localctrl = readl(®s->LocalCtrl);
1534 writel(0, ®s->LocalCtrl);
1536 writel(0, ®s->EvtPrd);
1537 writel(0, ®s->RxPrd);
1538 writel(0, ®s->TxPrd);
1541 * First wipe the entire SRAM, otherwise we might run into all
1542 * kinds of trouble ... sigh, this took almost all afternoon
1545 io = readl(®s->ExtIo);
1546 writel(0, ®s->ExtIo);
1547 sram_size = rr_read_eeprom_word(rrpriv, (void *)8);
1549 for (i = 200; i < sram_size / 4; i++){
1550 writel(i * 4, ®s->WinBase);
1552 writel(0, ®s->WinData);
1555 writel(io, ®s->ExtIo);
1558 eptr = (unsigned long)rr_read_eeprom_word(rrpriv,
1559 &hw->rncd_info.AddrRunCodeSegs);
1560 eptr = ((eptr & 0x1fffff) >> 3);
1562 p2len = rr_read_eeprom_word(rrpriv, (void *)(0x83*4));
1563 p2len = (p2len << 2);
1564 p2size = rr_read_eeprom_word(rrpriv, (void *)(0x84*4));
1565 p2size = ((p2size & 0x1fffff) >> 3);
1567 if ((eptr < p2size) || (eptr > (p2size + p2len))){
1568 printk("%s: eptr is invalid\n", dev->name);
1572 revision = rr_read_eeprom_word(rrpriv, &hw->manf.HeaderFmt);
1575 printk("%s: invalid firmware format (%i)\n",
1576 dev->name, revision);
1580 nr_seg = rr_read_eeprom_word(rrpriv, (void *)eptr);
1583 printk("%s: nr_seg %i\n", dev->name, nr_seg);
1586 for (i = 0; i < nr_seg; i++){
1587 sptr = rr_read_eeprom_word(rrpriv, (void *)eptr);
1589 len = rr_read_eeprom_word(rrpriv, (void *)eptr);
1591 segptr = (unsigned long)rr_read_eeprom_word(rrpriv, (void *)eptr);
1592 segptr = ((segptr & 0x1fffff) >> 3);
1595 printk("%s: segment %i, sram address %06x, length %04x, segptr %06x\n",
1596 dev->name, i, sptr, len, segptr);
1598 for (j = 0; j < len; j++){
1599 tmp = rr_read_eeprom_word(rrpriv, (void *)segptr);
1600 writel(sptr, ®s->WinBase);
1602 writel(tmp, ®s->WinData);
1610 writel(localctrl, ®s->LocalCtrl);
1616 static int rr_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
1618 struct rr_private *rrpriv;
1619 unsigned char *image, *oldimage;
1620 unsigned long flags;
1622 int error = -EOPNOTSUPP;
1624 rrpriv = netdev_priv(dev);
1628 if (!capable(CAP_SYS_RAWIO)){
1632 image = kmalloc(EEPROM_WORDS * sizeof(u32), GFP_KERNEL);
1634 printk(KERN_ERR "%s: Unable to allocate memory "
1635 "for EEPROM image\n", dev->name);
1640 if (rrpriv->fw_running){
1641 printk("%s: Firmware already running\n", dev->name);
1646 spin_lock_irqsave(&rrpriv->lock, flags);
1647 i = rr_read_eeprom(rrpriv, 0, image, EEPROM_BYTES);
1648 spin_unlock_irqrestore(&rrpriv->lock, flags);
1649 if (i != EEPROM_BYTES){
1650 printk(KERN_ERR "%s: Error reading EEPROM\n",
1655 error = copy_to_user(rq->ifr_data, image, EEPROM_BYTES);
1663 if (!capable(CAP_SYS_RAWIO)){
1667 image = kmalloc(EEPROM_WORDS * sizeof(u32), GFP_KERNEL);
1668 oldimage = kmalloc(EEPROM_WORDS * sizeof(u32), GFP_KERNEL);
1669 if (!image || !oldimage) {
1670 printk(KERN_ERR "%s: Unable to allocate memory "
1671 "for EEPROM image\n", dev->name);
1676 error = copy_from_user(image, rq->ifr_data, EEPROM_BYTES);
1682 if (rrpriv->fw_running){
1683 printk("%s: Firmware already running\n", dev->name);
1688 printk("%s: Updating EEPROM firmware\n", dev->name);
1690 spin_lock_irqsave(&rrpriv->lock, flags);
1691 error = write_eeprom(rrpriv, 0, image, EEPROM_BYTES);
1693 printk(KERN_ERR "%s: Error writing EEPROM\n",
1696 i = rr_read_eeprom(rrpriv, 0, oldimage, EEPROM_BYTES);
1697 spin_unlock_irqrestore(&rrpriv->lock, flags);
1699 if (i != EEPROM_BYTES)
1700 printk(KERN_ERR "%s: Error reading back EEPROM "
1701 "image\n", dev->name);
1703 error = memcmp(image, oldimage, EEPROM_BYTES);
1705 printk(KERN_ERR "%s: Error verifying EEPROM image\n",
1715 return put_user(0x52523032, (int __user *)rq->ifr_data);
1721 static struct pci_device_id rr_pci_tbl[] = {
1722 { PCI_VENDOR_ID_ESSENTIAL, PCI_DEVICE_ID_ESSENTIAL_ROADRUNNER,
1723 PCI_ANY_ID, PCI_ANY_ID, },
1726 MODULE_DEVICE_TABLE(pci, rr_pci_tbl);
1728 static struct pci_driver rr_driver = {
1730 .id_table = rr_pci_tbl,
1731 .probe = rr_init_one,
1732 .remove = __devexit_p(rr_remove_one),
1735 static int __init rr_init_module(void)
1737 return pci_register_driver(&rr_driver);
1740 static void __exit rr_cleanup_module(void)
1742 pci_unregister_driver(&rr_driver);
1745 module_init(rr_init_module);
1746 module_exit(rr_cleanup_module);
1750 * 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"