+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * rrunner.c: Linux driver for the Essential RoadRunner HIPPI board.
- *
- * Copyright (C) 1998-2002 by Jes Sorensen, <jes@wildopensource.com>.
- *
- * Thanks to Essential Communication for providing us with hardware
- * and very comprehensive documentation without which I would not have
- * been able to write this driver. A special thank you to John Gibbon
- * for sorting out the legal issues, with the NDA, allowing the code to
- * be released under the GPL.
- *
- * Thanks to Jayaram Bhat from ODS/Essential for fixing some of the
- * stupid bugs in my code.
- *
- * Softnet support and various other patches from Val Henson of
- * ODS/Essential.
- *
- * PCI DMA mapping code partly based on work by Francois Romieu.
- */
-
-
-#define DEBUG 1
-#define RX_DMA_SKBUFF 1
-#define PKT_COPY_THRESHOLD 512
-
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/errno.h>
-#include <linux/ioport.h>
-#include <linux/pci.h>
-#include <linux/kernel.h>
-#include <linux/netdevice.h>
-#include <linux/hippidevice.h>
-#include <linux/skbuff.h>
-#include <linux/delay.h>
-#include <linux/mm.h>
-#include <linux/slab.h>
-#include <net/sock.h>
-
-#include <asm/cache.h>
-#include <asm/byteorder.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <linux/uaccess.h>
-
-#define rr_if_busy(dev) netif_queue_stopped(dev)
-#define rr_if_running(dev) netif_running(dev)
-
-#include "rrunner.h"
-
-#define RUN_AT(x) (jiffies + (x))
-
-
-MODULE_AUTHOR("Jes Sorensen <jes@wildopensource.com>");
-MODULE_DESCRIPTION("Essential RoadRunner HIPPI driver");
-MODULE_LICENSE("GPL");
-
-static const char version[] =
-"rrunner.c: v0.50 11/11/2002 Jes Sorensen (jes@wildopensource.com)\n";
-
-
-static const struct net_device_ops rr_netdev_ops = {
- .ndo_open = rr_open,
- .ndo_stop = rr_close,
- .ndo_siocdevprivate = rr_siocdevprivate,
- .ndo_start_xmit = rr_start_xmit,
- .ndo_set_mac_address = hippi_mac_addr,
-};
-
-/*
- * Implementation notes:
- *
- * The DMA engine only allows for DMA within physical 64KB chunks of
- * memory. The current approach of the driver (and stack) is to use
- * linear blocks of memory for the skbuffs. However, as the data block
- * is always the first part of the skb and skbs are 2^n aligned so we
- * are guarantted to get the whole block within one 64KB align 64KB
- * chunk.
- *
- * On the long term, relying on being able to allocate 64KB linear
- * chunks of memory is not feasible and the skb handling code and the
- * stack will need to know about I/O vectors or something similar.
- */
-
-static int rr_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
-{
- struct net_device *dev;
- static int version_disp;
- u8 pci_latency;
- struct rr_private *rrpriv;
- void *tmpptr;
- dma_addr_t ring_dma;
- int ret = -ENOMEM;
-
- dev = alloc_hippi_dev(sizeof(struct rr_private));
- if (!dev)
- goto out3;
-
- ret = pci_enable_device(pdev);
- if (ret) {
- ret = -ENODEV;
- goto out2;
- }
-
- rrpriv = netdev_priv(dev);
-
- SET_NETDEV_DEV(dev, &pdev->dev);
-
- ret = pci_request_regions(pdev, "rrunner");
- if (ret < 0)
- goto out;
-
- pci_set_drvdata(pdev, dev);
-
- rrpriv->pci_dev = pdev;
-
- spin_lock_init(&rrpriv->lock);
-
- dev->netdev_ops = &rr_netdev_ops;
-
- /* display version info if adapter is found */
- if (!version_disp) {
- /* set display flag to TRUE so that */
- /* we only display this string ONCE */
- version_disp = 1;
- printk(version);
- }
-
- pci_read_config_byte(pdev, PCI_LATENCY_TIMER, &pci_latency);
- if (pci_latency <= 0x58){
- pci_latency = 0x58;
- pci_write_config_byte(pdev, PCI_LATENCY_TIMER, pci_latency);
- }
-
- pci_set_master(pdev);
-
- printk(KERN_INFO "%s: Essential RoadRunner serial HIPPI "
- "at 0x%llx, irq %i, PCI latency %i\n", dev->name,
- (unsigned long long)pci_resource_start(pdev, 0),
- pdev->irq, pci_latency);
-
- /*
- * Remap the MMIO regs into kernel space.
- */
- rrpriv->regs = pci_iomap(pdev, 0, 0x1000);
- if (!rrpriv->regs) {
- printk(KERN_ERR "%s: Unable to map I/O register, "
- "RoadRunner will be disabled.\n", dev->name);
- ret = -EIO;
- goto out;
- }
-
- tmpptr = dma_alloc_coherent(&pdev->dev, TX_TOTAL_SIZE, &ring_dma,
- GFP_KERNEL);
- rrpriv->tx_ring = tmpptr;
- rrpriv->tx_ring_dma = ring_dma;
-
- if (!tmpptr) {
- ret = -ENOMEM;
- goto out;
- }
-
- tmpptr = dma_alloc_coherent(&pdev->dev, RX_TOTAL_SIZE, &ring_dma,
- GFP_KERNEL);
- rrpriv->rx_ring = tmpptr;
- rrpriv->rx_ring_dma = ring_dma;
-
- if (!tmpptr) {
- ret = -ENOMEM;
- goto out;
- }
-
- tmpptr = dma_alloc_coherent(&pdev->dev, EVT_RING_SIZE, &ring_dma,
- GFP_KERNEL);
- rrpriv->evt_ring = tmpptr;
- rrpriv->evt_ring_dma = ring_dma;
-
- if (!tmpptr) {
- ret = -ENOMEM;
- goto out;
- }
-
- /*
- * Don't access any register before this point!
- */
-#ifdef __BIG_ENDIAN
- writel(readl(&rrpriv->regs->HostCtrl) | NO_SWAP,
- &rrpriv->regs->HostCtrl);
-#endif
- /*
- * Need to add a case for little-endian 64-bit hosts here.
- */
-
- rr_init(dev);
-
- ret = register_netdev(dev);
- if (ret)
- goto out;
- return 0;
-
- out:
- if (rrpriv->evt_ring)
- dma_free_coherent(&pdev->dev, EVT_RING_SIZE, rrpriv->evt_ring,
- rrpriv->evt_ring_dma);
- if (rrpriv->rx_ring)
- dma_free_coherent(&pdev->dev, RX_TOTAL_SIZE, rrpriv->rx_ring,
- rrpriv->rx_ring_dma);
- if (rrpriv->tx_ring)
- dma_free_coherent(&pdev->dev, TX_TOTAL_SIZE, rrpriv->tx_ring,
- rrpriv->tx_ring_dma);
- if (rrpriv->regs)
- pci_iounmap(pdev, rrpriv->regs);
- if (pdev)
- pci_release_regions(pdev);
- pci_disable_device(pdev);
- out2:
- free_netdev(dev);
- out3:
- return ret;
-}
-
-static void rr_remove_one(struct pci_dev *pdev)
-{
- struct net_device *dev = pci_get_drvdata(pdev);
- struct rr_private *rr = netdev_priv(dev);
-
- if (!(readl(&rr->regs->HostCtrl) & NIC_HALTED)) {
- printk(KERN_ERR "%s: trying to unload running NIC\n",
- dev->name);
- writel(HALT_NIC, &rr->regs->HostCtrl);
- }
-
- unregister_netdev(dev);
- dma_free_coherent(&pdev->dev, EVT_RING_SIZE, rr->evt_ring,
- rr->evt_ring_dma);
- dma_free_coherent(&pdev->dev, RX_TOTAL_SIZE, rr->rx_ring,
- rr->rx_ring_dma);
- dma_free_coherent(&pdev->dev, TX_TOTAL_SIZE, rr->tx_ring,
- rr->tx_ring_dma);
- pci_iounmap(pdev, rr->regs);
- pci_release_regions(pdev);
- pci_disable_device(pdev);
- free_netdev(dev);
-}
-
-
-/*
- * Commands are considered to be slow, thus there is no reason to
- * inline this.
- */
-static void rr_issue_cmd(struct rr_private *rrpriv, struct cmd *cmd)
-{
- struct rr_regs __iomem *regs;
- u32 idx;
-
- regs = rrpriv->regs;
- /*
- * This is temporary - it will go away in the final version.
- * We probably also want to make this function inline.
- */
- if (readl(®s->HostCtrl) & NIC_HALTED){
- printk("issuing command for halted NIC, code 0x%x, "
- "HostCtrl %08x\n", cmd->code, readl(®s->HostCtrl));
- if (readl(®s->Mode) & FATAL_ERR)
- printk("error codes Fail1 %02x, Fail2 %02x\n",
- readl(®s->Fail1), readl(®s->Fail2));
- }
-
- idx = rrpriv->info->cmd_ctrl.pi;
-
- writel(*(u32*)(cmd), ®s->CmdRing[idx]);
- wmb();
-
- idx = (idx - 1) % CMD_RING_ENTRIES;
- rrpriv->info->cmd_ctrl.pi = idx;
- wmb();
-
- if (readl(®s->Mode) & FATAL_ERR)
- printk("error code %02x\n", readl(®s->Fail1));
-}
-
-
-/*
- * Reset the board in a sensible manner. The NIC is already halted
- * when we get here and a spin-lock is held.
- */
-static int rr_reset(struct net_device *dev)
-{
- struct rr_private *rrpriv;
- struct rr_regs __iomem *regs;
- u32 start_pc;
- int i;
-
- rrpriv = netdev_priv(dev);
- regs = rrpriv->regs;
-
- rr_load_firmware(dev);
-
- writel(0x01000000, ®s->TX_state);
- writel(0xff800000, ®s->RX_state);
- writel(0, ®s->AssistState);
- writel(CLEAR_INTA, ®s->LocalCtrl);
- writel(0x01, ®s->BrkPt);
- writel(0, ®s->Timer);
- writel(0, ®s->TimerRef);
- writel(RESET_DMA, ®s->DmaReadState);
- writel(RESET_DMA, ®s->DmaWriteState);
- writel(0, ®s->DmaWriteHostHi);
- writel(0, ®s->DmaWriteHostLo);
- writel(0, ®s->DmaReadHostHi);
- writel(0, ®s->DmaReadHostLo);
- writel(0, ®s->DmaReadLen);
- writel(0, ®s->DmaWriteLen);
- writel(0, ®s->DmaWriteLcl);
- writel(0, ®s->DmaWriteIPchecksum);
- writel(0, ®s->DmaReadLcl);
- writel(0, ®s->DmaReadIPchecksum);
- writel(0, ®s->PciState);
-#if (BITS_PER_LONG == 64) && defined __LITTLE_ENDIAN
- writel(SWAP_DATA | PTR64BIT | PTR_WD_SWAP, ®s->Mode);
-#elif (BITS_PER_LONG == 64)
- writel(SWAP_DATA | PTR64BIT | PTR_WD_NOSWAP, ®s->Mode);
-#else
- writel(SWAP_DATA | PTR32BIT | PTR_WD_NOSWAP, ®s->Mode);
-#endif
-
-#if 0
- /*
- * Don't worry, this is just black magic.
- */
- writel(0xdf000, ®s->RxBase);
- writel(0xdf000, ®s->RxPrd);
- writel(0xdf000, ®s->RxCon);
- writel(0xce000, ®s->TxBase);
- writel(0xce000, ®s->TxPrd);
- writel(0xce000, ®s->TxCon);
- writel(0, ®s->RxIndPro);
- writel(0, ®s->RxIndCon);
- writel(0, ®s->RxIndRef);
- writel(0, ®s->TxIndPro);
- writel(0, ®s->TxIndCon);
- writel(0, ®s->TxIndRef);
- writel(0xcc000, ®s->pad10[0]);
- writel(0, ®s->DrCmndPro);
- writel(0, ®s->DrCmndCon);
- writel(0, ®s->DwCmndPro);
- writel(0, ®s->DwCmndCon);
- writel(0, ®s->DwCmndRef);
- writel(0, ®s->DrDataPro);
- writel(0, ®s->DrDataCon);
- writel(0, ®s->DrDataRef);
- writel(0, ®s->DwDataPro);
- writel(0, ®s->DwDataCon);
- writel(0, ®s->DwDataRef);
-#endif
-
- writel(0xffffffff, ®s->MbEvent);
- writel(0, ®s->Event);
-
- writel(0, ®s->TxPi);
- writel(0, ®s->IpRxPi);
-
- writel(0, ®s->EvtCon);
- writel(0, ®s->EvtPrd);
-
- rrpriv->info->evt_ctrl.pi = 0;
-
- for (i = 0; i < CMD_RING_ENTRIES; i++)
- writel(0, ®s->CmdRing[i]);
-
-/*
- * Why 32 ? is this not cache line size dependent?
- */
- writel(RBURST_64|WBURST_64, ®s->PciState);
- wmb();
-
- start_pc = rr_read_eeprom_word(rrpriv,
- offsetof(struct eeprom, rncd_info.FwStart));
-
-#if (DEBUG > 1)
- printk("%s: Executing firmware at address 0x%06x\n",
- dev->name, start_pc);
-#endif
-
- writel(start_pc + 0x800, ®s->Pc);
- wmb();
- udelay(5);
-
- writel(start_pc, ®s->Pc);
- wmb();
-
- return 0;
-}
-
-
-/*
- * Read a string from the EEPROM.
- */
-static unsigned int rr_read_eeprom(struct rr_private *rrpriv,
- unsigned long offset,
- unsigned char *buf,
- unsigned long length)
-{
- struct rr_regs __iomem *regs = rrpriv->regs;
- u32 misc, io, host, i;
-
- io = readl(®s->ExtIo);
- writel(0, ®s->ExtIo);
- misc = readl(®s->LocalCtrl);
- writel(0, ®s->LocalCtrl);
- host = readl(®s->HostCtrl);
- writel(host | HALT_NIC, ®s->HostCtrl);
- mb();
-
- for (i = 0; i < length; i++){
- writel((EEPROM_BASE + ((offset+i) << 3)), ®s->WinBase);
- mb();
- buf[i] = (readl(®s->WinData) >> 24) & 0xff;
- mb();
- }
-
- writel(host, ®s->HostCtrl);
- writel(misc, ®s->LocalCtrl);
- writel(io, ®s->ExtIo);
- mb();
- return i;
-}
-
-
-/*
- * Shortcut to read one word (4 bytes) out of the EEPROM and convert
- * it to our CPU byte-order.
- */
-static u32 rr_read_eeprom_word(struct rr_private *rrpriv,
- size_t offset)
-{
- __be32 word;
-
- if ((rr_read_eeprom(rrpriv, offset,
- (unsigned char *)&word, 4) == 4))
- return be32_to_cpu(word);
- return 0;
-}
-
-
-/*
- * Write a string to the EEPROM.
- *
- * This is only called when the firmware is not running.
- */
-static unsigned int write_eeprom(struct rr_private *rrpriv,
- unsigned long offset,
- unsigned char *buf,
- unsigned long length)
-{
- struct rr_regs __iomem *regs = rrpriv->regs;
- u32 misc, io, data, i, j, ready, error = 0;
-
- io = readl(®s->ExtIo);
- writel(0, ®s->ExtIo);
- misc = readl(®s->LocalCtrl);
- writel(ENABLE_EEPROM_WRITE, ®s->LocalCtrl);
- mb();
-
- for (i = 0; i < length; i++){
- writel((EEPROM_BASE + ((offset+i) << 3)), ®s->WinBase);
- mb();
- data = buf[i] << 24;
- /*
- * Only try to write the data if it is not the same
- * value already.
- */
- if ((readl(®s->WinData) & 0xff000000) != data){
- writel(data, ®s->WinData);
- ready = 0;
- j = 0;
- mb();
- while(!ready){
- udelay(20);
- if ((readl(®s->WinData) & 0xff000000) ==
- data)
- ready = 1;
- mb();
- if (j++ > 5000){
- printk("data mismatch: %08x, "
- "WinData %08x\n", data,
- readl(®s->WinData));
- ready = 1;
- error = 1;
- }
- }
- }
- }
-
- writel(misc, ®s->LocalCtrl);
- writel(io, ®s->ExtIo);
- mb();
-
- return error;
-}
-
-
-static int rr_init(struct net_device *dev)
-{
- u8 addr[HIPPI_ALEN] __aligned(4);
- struct rr_private *rrpriv;
- struct rr_regs __iomem *regs;
- u32 sram_size, rev;
-
- rrpriv = netdev_priv(dev);
- regs = rrpriv->regs;
-
- rev = readl(®s->FwRev);
- rrpriv->fw_rev = rev;
- if (rev > 0x00020024)
- printk(" Firmware revision: %i.%i.%i\n", (rev >> 16),
- ((rev >> 8) & 0xff), (rev & 0xff));
- else if (rev >= 0x00020000) {
- printk(" Firmware revision: %i.%i.%i (2.0.37 or "
- "later is recommended)\n", (rev >> 16),
- ((rev >> 8) & 0xff), (rev & 0xff));
- }else{
- printk(" Firmware revision too old: %i.%i.%i, please "
- "upgrade to 2.0.37 or later.\n",
- (rev >> 16), ((rev >> 8) & 0xff), (rev & 0xff));
- }
-
-#if (DEBUG > 2)
- printk(" Maximum receive rings %i\n", readl(®s->MaxRxRng));
-#endif
-
- /*
- * Read the hardware address from the eeprom. The HW address
- * is not really necessary for HIPPI but awfully convenient.
- * The pointer arithmetic to put it in dev_addr is ugly, but
- * Donald Becker does it this way for the GigE version of this
- * card and it's shorter and more portable than any
- * other method I've seen. -VAL
- */
-
- *(__be16 *)(addr) =
- htons(rr_read_eeprom_word(rrpriv, offsetof(struct eeprom, manf.BoardULA)));
- *(__be32 *)(addr+2) =
- htonl(rr_read_eeprom_word(rrpriv, offsetof(struct eeprom, manf.BoardULA[4])));
- dev_addr_set(dev, addr);
-
- printk(" MAC: %pM\n", dev->dev_addr);
-
- sram_size = rr_read_eeprom_word(rrpriv, 8);
- printk(" SRAM size 0x%06x\n", sram_size);
-
- return 0;
-}
-
-
-static int rr_init1(struct net_device *dev)
-{
- struct rr_private *rrpriv;
- struct rr_regs __iomem *regs;
- unsigned long myjif, flags;
- struct cmd cmd;
- u32 hostctrl;
- int ecode = 0;
- short i;
-
- rrpriv = netdev_priv(dev);
- regs = rrpriv->regs;
-
- spin_lock_irqsave(&rrpriv->lock, flags);
-
- hostctrl = readl(®s->HostCtrl);
- writel(hostctrl | HALT_NIC | RR_CLEAR_INT, ®s->HostCtrl);
- wmb();
-
- if (hostctrl & PARITY_ERR){
- printk("%s: Parity error halting NIC - this is serious!\n",
- dev->name);
- spin_unlock_irqrestore(&rrpriv->lock, flags);
- ecode = -EFAULT;
- goto error;
- }
-
- set_rxaddr(regs, rrpriv->rx_ctrl_dma);
- set_infoaddr(regs, rrpriv->info_dma);
-
- rrpriv->info->evt_ctrl.entry_size = sizeof(struct event);
- rrpriv->info->evt_ctrl.entries = EVT_RING_ENTRIES;
- rrpriv->info->evt_ctrl.mode = 0;
- rrpriv->info->evt_ctrl.pi = 0;
- set_rraddr(&rrpriv->info->evt_ctrl.rngptr, rrpriv->evt_ring_dma);
-
- rrpriv->info->cmd_ctrl.entry_size = sizeof(struct cmd);
- rrpriv->info->cmd_ctrl.entries = CMD_RING_ENTRIES;
- rrpriv->info->cmd_ctrl.mode = 0;
- rrpriv->info->cmd_ctrl.pi = 15;
-
- for (i = 0; i < CMD_RING_ENTRIES; i++) {
- writel(0, ®s->CmdRing[i]);
- }
-
- for (i = 0; i < TX_RING_ENTRIES; i++) {
- rrpriv->tx_ring[i].size = 0;
- set_rraddr(&rrpriv->tx_ring[i].addr, 0);
- rrpriv->tx_skbuff[i] = NULL;
- }
- rrpriv->info->tx_ctrl.entry_size = sizeof(struct tx_desc);
- rrpriv->info->tx_ctrl.entries = TX_RING_ENTRIES;
- rrpriv->info->tx_ctrl.mode = 0;
- rrpriv->info->tx_ctrl.pi = 0;
- set_rraddr(&rrpriv->info->tx_ctrl.rngptr, rrpriv->tx_ring_dma);
-
- /*
- * Set dirty_tx before we start receiving interrupts, otherwise
- * the interrupt handler might think it is supposed to process
- * tx ints before we are up and running, which may cause a null
- * pointer access in the int handler.
- */
- rrpriv->tx_full = 0;
- rrpriv->cur_rx = 0;
- rrpriv->dirty_rx = rrpriv->dirty_tx = 0;
-
- rr_reset(dev);
-
- /* Tuning values */
- writel(0x5000, ®s->ConRetry);
- writel(0x100, ®s->ConRetryTmr);
- writel(0x500000, ®s->ConTmout);
- writel(0x60, ®s->IntrTmr);
- writel(0x500000, ®s->TxDataMvTimeout);
- writel(0x200000, ®s->RxDataMvTimeout);
- writel(0x80, ®s->WriteDmaThresh);
- writel(0x80, ®s->ReadDmaThresh);
-
- rrpriv->fw_running = 0;
- wmb();
-
- hostctrl &= ~(HALT_NIC | INVALID_INST_B | PARITY_ERR);
- writel(hostctrl, ®s->HostCtrl);
- wmb();
-
- spin_unlock_irqrestore(&rrpriv->lock, flags);
-
- for (i = 0; i < RX_RING_ENTRIES; i++) {
- struct sk_buff *skb;
- dma_addr_t addr;
-
- rrpriv->rx_ring[i].mode = 0;
- skb = alloc_skb(dev->mtu + HIPPI_HLEN, GFP_ATOMIC);
- if (!skb) {
- printk(KERN_WARNING "%s: Unable to allocate memory "
- "for receive ring - halting NIC\n", dev->name);
- ecode = -ENOMEM;
- goto error;
- }
- rrpriv->rx_skbuff[i] = skb;
- addr = dma_map_single(&rrpriv->pci_dev->dev, skb->data,
- dev->mtu + HIPPI_HLEN, DMA_FROM_DEVICE);
- /*
- * Sanity test to see if we conflict with the DMA
- * limitations of the Roadrunner.
- */
- if ((((unsigned long)skb->data) & 0xfff) > ~65320)
- printk("skb alloc error\n");
-
- set_rraddr(&rrpriv->rx_ring[i].addr, addr);
- rrpriv->rx_ring[i].size = dev->mtu + HIPPI_HLEN;
- }
-
- rrpriv->rx_ctrl[4].entry_size = sizeof(struct rx_desc);
- rrpriv->rx_ctrl[4].entries = RX_RING_ENTRIES;
- rrpriv->rx_ctrl[4].mode = 8;
- rrpriv->rx_ctrl[4].pi = 0;
- wmb();
- set_rraddr(&rrpriv->rx_ctrl[4].rngptr, rrpriv->rx_ring_dma);
-
- udelay(1000);
-
- /*
- * Now start the FirmWare.
- */
- cmd.code = C_START_FW;
- cmd.ring = 0;
- cmd.index = 0;
-
- rr_issue_cmd(rrpriv, &cmd);
-
- /*
- * Give the FirmWare time to chew on the `get running' command.
- */
- myjif = jiffies + 5 * HZ;
- while (time_before(jiffies, myjif) && !rrpriv->fw_running)
- cpu_relax();
-
- netif_start_queue(dev);
-
- return ecode;
-
- error:
- /*
- * We might have gotten here because we are out of memory,
- * make sure we release everything we allocated before failing
- */
- for (i = 0; i < RX_RING_ENTRIES; i++) {
- struct sk_buff *skb = rrpriv->rx_skbuff[i];
-
- if (skb) {
- dma_unmap_single(&rrpriv->pci_dev->dev,
- rrpriv->rx_ring[i].addr.addrlo,
- dev->mtu + HIPPI_HLEN,
- DMA_FROM_DEVICE);
- rrpriv->rx_ring[i].size = 0;
- set_rraddr(&rrpriv->rx_ring[i].addr, 0);
- dev_kfree_skb(skb);
- rrpriv->rx_skbuff[i] = NULL;
- }
- }
- return ecode;
-}
-
-
-/*
- * All events are considered to be slow (RX/TX ints do not generate
- * events) and are handled here, outside the main interrupt handler,
- * to reduce the size of the handler.
- */
-static u32 rr_handle_event(struct net_device *dev, u32 prodidx, u32 eidx)
-{
- struct rr_private *rrpriv;
- struct rr_regs __iomem *regs;
- u32 tmp;
-
- rrpriv = netdev_priv(dev);
- regs = rrpriv->regs;
-
- while (prodidx != eidx){
- switch (rrpriv->evt_ring[eidx].code){
- case E_NIC_UP:
- tmp = readl(®s->FwRev);
- printk(KERN_INFO "%s: Firmware revision %i.%i.%i "
- "up and running\n", dev->name,
- (tmp >> 16), ((tmp >> 8) & 0xff), (tmp & 0xff));
- rrpriv->fw_running = 1;
- writel(RX_RING_ENTRIES - 1, ®s->IpRxPi);
- wmb();
- break;
- case E_LINK_ON:
- printk(KERN_INFO "%s: Optical link ON\n", dev->name);
- break;
- case E_LINK_OFF:
- printk(KERN_INFO "%s: Optical link OFF\n", dev->name);
- break;
- case E_RX_IDLE:
- printk(KERN_WARNING "%s: RX data not moving\n",
- dev->name);
- goto drop;
- case E_WATCHDOG:
- printk(KERN_INFO "%s: The watchdog is here to see "
- "us\n", dev->name);
- break;
- case E_INTERN_ERR:
- printk(KERN_ERR "%s: HIPPI Internal NIC error\n",
- dev->name);
- writel(readl(®s->HostCtrl)|HALT_NIC|RR_CLEAR_INT,
- ®s->HostCtrl);
- wmb();
- break;
- case E_HOST_ERR:
- printk(KERN_ERR "%s: Host software error\n",
- dev->name);
- writel(readl(®s->HostCtrl)|HALT_NIC|RR_CLEAR_INT,
- ®s->HostCtrl);
- wmb();
- break;
- /*
- * TX events.
- */
- case E_CON_REJ:
- printk(KERN_WARNING "%s: Connection rejected\n",
- dev->name);
- dev->stats.tx_aborted_errors++;
- break;
- case E_CON_TMOUT:
- printk(KERN_WARNING "%s: Connection timeout\n",
- dev->name);
- break;
- case E_DISC_ERR:
- printk(KERN_WARNING "%s: HIPPI disconnect error\n",
- dev->name);
- dev->stats.tx_aborted_errors++;
- break;
- case E_INT_PRTY:
- printk(KERN_ERR "%s: HIPPI Internal Parity error\n",
- dev->name);
- writel(readl(®s->HostCtrl)|HALT_NIC|RR_CLEAR_INT,
- ®s->HostCtrl);
- wmb();
- break;
- case E_TX_IDLE:
- printk(KERN_WARNING "%s: Transmitter idle\n",
- dev->name);
- break;
- case E_TX_LINK_DROP:
- printk(KERN_WARNING "%s: Link lost during transmit\n",
- dev->name);
- dev->stats.tx_aborted_errors++;
- writel(readl(®s->HostCtrl)|HALT_NIC|RR_CLEAR_INT,
- ®s->HostCtrl);
- wmb();
- break;
- case E_TX_INV_RNG:
- printk(KERN_ERR "%s: Invalid send ring block\n",
- dev->name);
- writel(readl(®s->HostCtrl)|HALT_NIC|RR_CLEAR_INT,
- ®s->HostCtrl);
- wmb();
- break;
- case E_TX_INV_BUF:
- printk(KERN_ERR "%s: Invalid send buffer address\n",
- dev->name);
- writel(readl(®s->HostCtrl)|HALT_NIC|RR_CLEAR_INT,
- ®s->HostCtrl);
- wmb();
- break;
- case E_TX_INV_DSC:
- printk(KERN_ERR "%s: Invalid descriptor address\n",
- dev->name);
- writel(readl(®s->HostCtrl)|HALT_NIC|RR_CLEAR_INT,
- ®s->HostCtrl);
- wmb();
- break;
- /*
- * RX events.
- */
- case E_RX_RNG_OUT:
- printk(KERN_INFO "%s: Receive ring full\n", dev->name);
- break;
-
- case E_RX_PAR_ERR:
- printk(KERN_WARNING "%s: Receive parity error\n",
- dev->name);
- goto drop;
- case E_RX_LLRC_ERR:
- printk(KERN_WARNING "%s: Receive LLRC error\n",
- dev->name);
- goto drop;
- case E_PKT_LN_ERR:
- printk(KERN_WARNING "%s: Receive packet length "
- "error\n", dev->name);
- goto drop;
- case E_DTA_CKSM_ERR:
- printk(KERN_WARNING "%s: Data checksum error\n",
- dev->name);
- goto drop;
- case E_SHT_BST:
- printk(KERN_WARNING "%s: Unexpected short burst "
- "error\n", dev->name);
- goto drop;
- case E_STATE_ERR:
- printk(KERN_WARNING "%s: Recv. state transition"
- " error\n", dev->name);
- goto drop;
- case E_UNEXP_DATA:
- printk(KERN_WARNING "%s: Unexpected data error\n",
- dev->name);
- goto drop;
- case E_LST_LNK_ERR:
- printk(KERN_WARNING "%s: Link lost error\n",
- dev->name);
- goto drop;
- case E_FRM_ERR:
- printk(KERN_WARNING "%s: Framing Error\n",
- dev->name);
- goto drop;
- case E_FLG_SYN_ERR:
- printk(KERN_WARNING "%s: Flag sync. lost during "
- "packet\n", dev->name);
- goto drop;
- case E_RX_INV_BUF:
- printk(KERN_ERR "%s: Invalid receive buffer "
- "address\n", dev->name);
- writel(readl(®s->HostCtrl)|HALT_NIC|RR_CLEAR_INT,
- ®s->HostCtrl);
- wmb();
- break;
- case E_RX_INV_DSC:
- printk(KERN_ERR "%s: Invalid receive descriptor "
- "address\n", dev->name);
- writel(readl(®s->HostCtrl)|HALT_NIC|RR_CLEAR_INT,
- ®s->HostCtrl);
- wmb();
- break;
- case E_RNG_BLK:
- printk(KERN_ERR "%s: Invalid ring block\n",
- dev->name);
- writel(readl(®s->HostCtrl)|HALT_NIC|RR_CLEAR_INT,
- ®s->HostCtrl);
- wmb();
- break;
- drop:
- /* Label packet to be dropped.
- * Actual dropping occurs in rx
- * handling.
- *
- * The index of packet we get to drop is
- * the index of the packet following
- * the bad packet. -kbf
- */
- {
- u16 index = rrpriv->evt_ring[eidx].index;
- index = (index + (RX_RING_ENTRIES - 1)) %
- RX_RING_ENTRIES;
- rrpriv->rx_ring[index].mode |=
- (PACKET_BAD | PACKET_END);
- }
- break;
- default:
- printk(KERN_WARNING "%s: Unhandled event 0x%02x\n",
- dev->name, rrpriv->evt_ring[eidx].code);
- }
- eidx = (eidx + 1) % EVT_RING_ENTRIES;
- }
-
- rrpriv->info->evt_ctrl.pi = eidx;
- wmb();
- return eidx;
-}
-
-
-static void rx_int(struct net_device *dev, u32 rxlimit, u32 index)
-{
- struct rr_private *rrpriv = netdev_priv(dev);
- struct rr_regs __iomem *regs = rrpriv->regs;
-
- do {
- struct rx_desc *desc;
- u32 pkt_len;
-
- desc = &(rrpriv->rx_ring[index]);
- pkt_len = desc->size;
-#if (DEBUG > 2)
- printk("index %i, rxlimit %i\n", index, rxlimit);
- printk("len %x, mode %x\n", pkt_len, desc->mode);
-#endif
- if ( (rrpriv->rx_ring[index].mode & PACKET_BAD) == PACKET_BAD){
- dev->stats.rx_dropped++;
- goto defer;
- }
-
- if (pkt_len > 0){
- struct sk_buff *skb, *rx_skb;
-
- rx_skb = rrpriv->rx_skbuff[index];
-
- if (pkt_len < PKT_COPY_THRESHOLD) {
- skb = alloc_skb(pkt_len, GFP_ATOMIC);
- if (skb == NULL){
- printk(KERN_WARNING "%s: Unable to allocate skb (%i bytes), deferring packet\n", dev->name, pkt_len);
- dev->stats.rx_dropped++;
- goto defer;
- } else {
- dma_sync_single_for_cpu(&rrpriv->pci_dev->dev,
- desc->addr.addrlo,
- pkt_len,
- DMA_FROM_DEVICE);
-
- skb_put_data(skb, rx_skb->data,
- pkt_len);
-
- dma_sync_single_for_device(&rrpriv->pci_dev->dev,
- desc->addr.addrlo,
- pkt_len,
- DMA_FROM_DEVICE);
- }
- }else{
- struct sk_buff *newskb;
-
- newskb = alloc_skb(dev->mtu + HIPPI_HLEN,
- GFP_ATOMIC);
- if (newskb){
- dma_addr_t addr;
-
- dma_unmap_single(&rrpriv->pci_dev->dev,
- desc->addr.addrlo,
- dev->mtu + HIPPI_HLEN,
- DMA_FROM_DEVICE);
- skb = rx_skb;
- skb_put(skb, pkt_len);
- rrpriv->rx_skbuff[index] = newskb;
- addr = dma_map_single(&rrpriv->pci_dev->dev,
- newskb->data,
- dev->mtu + HIPPI_HLEN,
- DMA_FROM_DEVICE);
- set_rraddr(&desc->addr, addr);
- } else {
- printk("%s: Out of memory, deferring "
- "packet\n", dev->name);
- dev->stats.rx_dropped++;
- goto defer;
- }
- }
- skb->protocol = hippi_type_trans(skb, dev);
-
- netif_rx(skb); /* send it up */
-
- dev->stats.rx_packets++;
- dev->stats.rx_bytes += pkt_len;
- }
- defer:
- desc->mode = 0;
- desc->size = dev->mtu + HIPPI_HLEN;
-
- if ((index & 7) == 7)
- writel(index, ®s->IpRxPi);
-
- index = (index + 1) % RX_RING_ENTRIES;
- } while(index != rxlimit);
-
- rrpriv->cur_rx = index;
- wmb();
-}
-
-
-static irqreturn_t rr_interrupt(int irq, void *dev_id)
-{
- struct rr_private *rrpriv;
- struct rr_regs __iomem *regs;
- struct net_device *dev = (struct net_device *)dev_id;
- u32 prodidx, rxindex, eidx, txcsmr, rxlimit, txcon;
-
- rrpriv = netdev_priv(dev);
- regs = rrpriv->regs;
-
- if (!(readl(®s->HostCtrl) & RR_INT))
- return IRQ_NONE;
-
- spin_lock(&rrpriv->lock);
-
- prodidx = readl(®s->EvtPrd);
- txcsmr = (prodidx >> 8) & 0xff;
- rxlimit = (prodidx >> 16) & 0xff;
- prodidx &= 0xff;
-
-#if (DEBUG > 2)
- printk("%s: interrupt, prodidx = %i, eidx = %i\n", dev->name,
- prodidx, rrpriv->info->evt_ctrl.pi);
-#endif
- /*
- * Order here is important. We must handle events
- * before doing anything else in order to catch
- * such things as LLRC errors, etc -kbf
- */
-
- eidx = rrpriv->info->evt_ctrl.pi;
- if (prodidx != eidx)
- eidx = rr_handle_event(dev, prodidx, eidx);
-
- rxindex = rrpriv->cur_rx;
- if (rxindex != rxlimit)
- rx_int(dev, rxlimit, rxindex);
-
- txcon = rrpriv->dirty_tx;
- if (txcsmr != txcon) {
- do {
- /* Due to occational firmware TX producer/consumer out
- * of sync. error need to check entry in ring -kbf
- */
- if(rrpriv->tx_skbuff[txcon]){
- struct tx_desc *desc;
- struct sk_buff *skb;
-
- desc = &(rrpriv->tx_ring[txcon]);
- skb = rrpriv->tx_skbuff[txcon];
-
- dev->stats.tx_packets++;
- dev->stats.tx_bytes += skb->len;
-
- dma_unmap_single(&rrpriv->pci_dev->dev,
- desc->addr.addrlo, skb->len,
- DMA_TO_DEVICE);
- dev_kfree_skb_irq(skb);
-
- rrpriv->tx_skbuff[txcon] = NULL;
- desc->size = 0;
- set_rraddr(&rrpriv->tx_ring[txcon].addr, 0);
- desc->mode = 0;
- }
- txcon = (txcon + 1) % TX_RING_ENTRIES;
- } while (txcsmr != txcon);
- wmb();
-
- rrpriv->dirty_tx = txcon;
- if (rrpriv->tx_full && rr_if_busy(dev) &&
- (((rrpriv->info->tx_ctrl.pi + 1) % TX_RING_ENTRIES)
- != rrpriv->dirty_tx)){
- rrpriv->tx_full = 0;
- netif_wake_queue(dev);
- }
- }
-
- eidx |= ((txcsmr << 8) | (rxlimit << 16));
- writel(eidx, ®s->EvtCon);
- wmb();
-
- spin_unlock(&rrpriv->lock);
- return IRQ_HANDLED;
-}
-
-static inline void rr_raz_tx(struct rr_private *rrpriv,
- struct net_device *dev)
-{
- int i;
-
- for (i = 0; i < TX_RING_ENTRIES; i++) {
- struct sk_buff *skb = rrpriv->tx_skbuff[i];
-
- if (skb) {
- struct tx_desc *desc = &(rrpriv->tx_ring[i]);
-
- dma_unmap_single(&rrpriv->pci_dev->dev,
- desc->addr.addrlo, skb->len,
- DMA_TO_DEVICE);
- desc->size = 0;
- set_rraddr(&desc->addr, 0);
- dev_kfree_skb(skb);
- rrpriv->tx_skbuff[i] = NULL;
- }
- }
-}
-
-
-static inline void rr_raz_rx(struct rr_private *rrpriv,
- struct net_device *dev)
-{
- int i;
-
- for (i = 0; i < RX_RING_ENTRIES; i++) {
- struct sk_buff *skb = rrpriv->rx_skbuff[i];
-
- if (skb) {
- struct rx_desc *desc = &(rrpriv->rx_ring[i]);
-
- dma_unmap_single(&rrpriv->pci_dev->dev,
- desc->addr.addrlo,
- dev->mtu + HIPPI_HLEN,
- DMA_FROM_DEVICE);
- desc->size = 0;
- set_rraddr(&desc->addr, 0);
- dev_kfree_skb(skb);
- rrpriv->rx_skbuff[i] = NULL;
- }
- }
-}
-
-static void rr_timer(struct timer_list *t)
-{
- struct rr_private *rrpriv = timer_container_of(rrpriv, t, timer);
- struct net_device *dev = pci_get_drvdata(rrpriv->pci_dev);
- struct rr_regs __iomem *regs = rrpriv->regs;
- unsigned long flags;
-
- if (readl(®s->HostCtrl) & NIC_HALTED){
- printk("%s: Restarting nic\n", dev->name);
- memset(rrpriv->rx_ctrl, 0, 256 * sizeof(struct ring_ctrl));
- memset(rrpriv->info, 0, sizeof(struct rr_info));
- wmb();
-
- rr_raz_tx(rrpriv, dev);
- rr_raz_rx(rrpriv, dev);
-
- if (rr_init1(dev)) {
- spin_lock_irqsave(&rrpriv->lock, flags);
- writel(readl(®s->HostCtrl)|HALT_NIC|RR_CLEAR_INT,
- ®s->HostCtrl);
- spin_unlock_irqrestore(&rrpriv->lock, flags);
- }
- }
- rrpriv->timer.expires = RUN_AT(5*HZ);
- add_timer(&rrpriv->timer);
-}
-
-
-static int rr_open(struct net_device *dev)
-{
- struct rr_private *rrpriv = netdev_priv(dev);
- struct pci_dev *pdev = rrpriv->pci_dev;
- struct rr_regs __iomem *regs;
- int ecode = 0;
- unsigned long flags;
- dma_addr_t dma_addr;
-
- regs = rrpriv->regs;
-
- if (rrpriv->fw_rev < 0x00020000) {
- printk(KERN_WARNING "%s: trying to configure device with "
- "obsolete firmware\n", dev->name);
- ecode = -EBUSY;
- goto error;
- }
-
- rrpriv->rx_ctrl = dma_alloc_coherent(&pdev->dev,
- 256 * sizeof(struct ring_ctrl),
- &dma_addr, GFP_KERNEL);
- if (!rrpriv->rx_ctrl) {
- ecode = -ENOMEM;
- goto error;
- }
- rrpriv->rx_ctrl_dma = dma_addr;
-
- rrpriv->info = dma_alloc_coherent(&pdev->dev, sizeof(struct rr_info),
- &dma_addr, GFP_KERNEL);
- if (!rrpriv->info) {
- ecode = -ENOMEM;
- goto error;
- }
- rrpriv->info_dma = dma_addr;
- wmb();
-
- spin_lock_irqsave(&rrpriv->lock, flags);
- writel(readl(®s->HostCtrl)|HALT_NIC|RR_CLEAR_INT, ®s->HostCtrl);
- readl(®s->HostCtrl);
- spin_unlock_irqrestore(&rrpriv->lock, flags);
-
- if (request_irq(pdev->irq, rr_interrupt, IRQF_SHARED, dev->name, dev)) {
- printk(KERN_WARNING "%s: Requested IRQ %d is busy\n",
- dev->name, pdev->irq);
- ecode = -EAGAIN;
- goto error;
- }
-
- if ((ecode = rr_init1(dev)))
- goto error;
-
- /* Set the timer to switch to check for link beat and perhaps switch
- to an alternate media type. */
- timer_setup(&rrpriv->timer, rr_timer, 0);
- rrpriv->timer.expires = RUN_AT(5*HZ); /* 5 sec. watchdog */
- add_timer(&rrpriv->timer);
-
- netif_start_queue(dev);
-
- return ecode;
-
- error:
- spin_lock_irqsave(&rrpriv->lock, flags);
- writel(readl(®s->HostCtrl)|HALT_NIC|RR_CLEAR_INT, ®s->HostCtrl);
- spin_unlock_irqrestore(&rrpriv->lock, flags);
-
- if (rrpriv->info) {
- dma_free_coherent(&pdev->dev, sizeof(struct rr_info),
- rrpriv->info, rrpriv->info_dma);
- rrpriv->info = NULL;
- }
- if (rrpriv->rx_ctrl) {
- dma_free_coherent(&pdev->dev, 256 * sizeof(struct ring_ctrl),
- rrpriv->rx_ctrl, rrpriv->rx_ctrl_dma);
- rrpriv->rx_ctrl = NULL;
- }
-
- netif_stop_queue(dev);
-
- return ecode;
-}
-
-
-static void rr_dump(struct net_device *dev)
-{
- struct rr_private *rrpriv;
- struct rr_regs __iomem *regs;
- u32 index, cons;
- short i;
- int len;
-
- rrpriv = netdev_priv(dev);
- regs = rrpriv->regs;
-
- printk("%s: dumping NIC TX rings\n", dev->name);
-
- printk("RxPrd %08x, TxPrd %02x, EvtPrd %08x, TxPi %02x, TxCtrlPi %02x\n",
- readl(®s->RxPrd), readl(®s->TxPrd),
- readl(®s->EvtPrd), readl(®s->TxPi),
- rrpriv->info->tx_ctrl.pi);
-
- printk("Error code 0x%x\n", readl(®s->Fail1));
-
- index = (((readl(®s->EvtPrd) >> 8) & 0xff) - 1) % TX_RING_ENTRIES;
- cons = rrpriv->dirty_tx;
- printk("TX ring index %i, TX consumer %i\n",
- index, cons);
-
- if (rrpriv->tx_skbuff[index]){
- len = min_t(int, 0x80, rrpriv->tx_skbuff[index]->len);
- printk("skbuff for index %i is valid - dumping data (0x%x bytes - DMA len 0x%x)\n", index, len, rrpriv->tx_ring[index].size);
- for (i = 0; i < len; i++){
- if (!(i & 7))
- printk("\n");
- printk("%02x ", (unsigned char) rrpriv->tx_skbuff[index]->data[i]);
- }
- printk("\n");
- }
-
- if (rrpriv->tx_skbuff[cons]){
- len = min_t(int, 0x80, rrpriv->tx_skbuff[cons]->len);
- printk("skbuff for cons %i is valid - dumping data (0x%x bytes - skbuff len 0x%x)\n", cons, len, rrpriv->tx_skbuff[cons]->len);
- printk("mode 0x%x, size 0x%x,\n phys %08Lx, skbuff-addr %p, truesize 0x%x\n",
- rrpriv->tx_ring[cons].mode,
- rrpriv->tx_ring[cons].size,
- (unsigned long long) rrpriv->tx_ring[cons].addr.addrlo,
- rrpriv->tx_skbuff[cons]->data,
- (unsigned int)rrpriv->tx_skbuff[cons]->truesize);
- for (i = 0; i < len; i++){
- if (!(i & 7))
- printk("\n");
- printk("%02x ", (unsigned char)rrpriv->tx_ring[cons].size);
- }
- printk("\n");
- }
-
- printk("dumping TX ring info:\n");
- for (i = 0; i < TX_RING_ENTRIES; i++)
- printk("mode 0x%x, size 0x%x, phys-addr %08Lx\n",
- rrpriv->tx_ring[i].mode,
- rrpriv->tx_ring[i].size,
- (unsigned long long) rrpriv->tx_ring[i].addr.addrlo);
-
-}
-
-
-static int rr_close(struct net_device *dev)
-{
- struct rr_private *rrpriv = netdev_priv(dev);
- struct rr_regs __iomem *regs = rrpriv->regs;
- struct pci_dev *pdev = rrpriv->pci_dev;
- unsigned long flags;
- u32 tmp;
- short i;
-
- netif_stop_queue(dev);
-
-
- /*
- * Lock to make sure we are not cleaning up while another CPU
- * is handling interrupts.
- */
- spin_lock_irqsave(&rrpriv->lock, flags);
-
- tmp = readl(®s->HostCtrl);
- if (tmp & NIC_HALTED){
- printk("%s: NIC already halted\n", dev->name);
- rr_dump(dev);
- }else{
- tmp |= HALT_NIC | RR_CLEAR_INT;
- writel(tmp, ®s->HostCtrl);
- readl(®s->HostCtrl);
- }
-
- rrpriv->fw_running = 0;
-
- spin_unlock_irqrestore(&rrpriv->lock, flags);
- timer_delete_sync(&rrpriv->timer);
- spin_lock_irqsave(&rrpriv->lock, flags);
-
- writel(0, ®s->TxPi);
- writel(0, ®s->IpRxPi);
-
- writel(0, ®s->EvtCon);
- writel(0, ®s->EvtPrd);
-
- for (i = 0; i < CMD_RING_ENTRIES; i++)
- writel(0, ®s->CmdRing[i]);
-
- rrpriv->info->tx_ctrl.entries = 0;
- rrpriv->info->cmd_ctrl.pi = 0;
- rrpriv->info->evt_ctrl.pi = 0;
- rrpriv->rx_ctrl[4].entries = 0;
-
- rr_raz_tx(rrpriv, dev);
- rr_raz_rx(rrpriv, dev);
-
- dma_free_coherent(&pdev->dev, 256 * sizeof(struct ring_ctrl),
- rrpriv->rx_ctrl, rrpriv->rx_ctrl_dma);
- rrpriv->rx_ctrl = NULL;
-
- dma_free_coherent(&pdev->dev, sizeof(struct rr_info), rrpriv->info,
- rrpriv->info_dma);
- rrpriv->info = NULL;
-
- spin_unlock_irqrestore(&rrpriv->lock, flags);
- free_irq(pdev->irq, dev);
-
- return 0;
-}
-
-
-static netdev_tx_t rr_start_xmit(struct sk_buff *skb,
- struct net_device *dev)
-{
- struct rr_private *rrpriv = netdev_priv(dev);
- struct rr_regs __iomem *regs = rrpriv->regs;
- struct hippi_cb *hcb = (struct hippi_cb *) skb->cb;
- struct ring_ctrl *txctrl;
- unsigned long flags;
- u32 index, len = skb->len;
- u32 *ifield;
- struct sk_buff *new_skb;
-
- if (readl(®s->Mode) & FATAL_ERR)
- printk("error codes Fail1 %02x, Fail2 %02x\n",
- readl(®s->Fail1), readl(®s->Fail2));
-
- /*
- * We probably need to deal with tbusy here to prevent overruns.
- */
-
- if (skb_headroom(skb) < 8){
- printk("incoming skb too small - reallocating\n");
- if (!(new_skb = dev_alloc_skb(len + 8))) {
- dev_kfree_skb(skb);
- netif_wake_queue(dev);
- return NETDEV_TX_OK;
- }
- skb_reserve(new_skb, 8);
- skb_put(new_skb, len);
- skb_copy_from_linear_data(skb, new_skb->data, len);
- dev_kfree_skb(skb);
- skb = new_skb;
- }
-
- ifield = skb_push(skb, 8);
-
- ifield[0] = 0;
- ifield[1] = hcb->ifield;
-
- /*
- * We don't need the lock before we are actually going to start
- * fiddling with the control blocks.
- */
- spin_lock_irqsave(&rrpriv->lock, flags);
-
- txctrl = &rrpriv->info->tx_ctrl;
-
- index = txctrl->pi;
-
- rrpriv->tx_skbuff[index] = skb;
- set_rraddr(&rrpriv->tx_ring[index].addr,
- dma_map_single(&rrpriv->pci_dev->dev, skb->data, len + 8, DMA_TO_DEVICE));
- rrpriv->tx_ring[index].size = len + 8; /* include IFIELD */
- rrpriv->tx_ring[index].mode = PACKET_START | PACKET_END;
- txctrl->pi = (index + 1) % TX_RING_ENTRIES;
- wmb();
- writel(txctrl->pi, ®s->TxPi);
-
- if (txctrl->pi == rrpriv->dirty_tx){
- rrpriv->tx_full = 1;
- netif_stop_queue(dev);
- }
-
- spin_unlock_irqrestore(&rrpriv->lock, flags);
-
- return NETDEV_TX_OK;
-}
-
-
-/*
- * Read the firmware out of the EEPROM and put it into the SRAM
- * (or from user space - later)
- *
- * This operation requires the NIC to be halted and is performed with
- * interrupts disabled and with the spinlock hold.
- */
-static int rr_load_firmware(struct net_device *dev)
-{
- struct rr_private *rrpriv;
- struct rr_regs __iomem *regs;
- size_t eptr, segptr;
- int i, j;
- u32 localctrl, sptr, len, tmp;
- u32 p2len, p2size, nr_seg, revision, io, sram_size;
-
- rrpriv = netdev_priv(dev);
- regs = rrpriv->regs;
-
- if (dev->flags & IFF_UP)
- return -EBUSY;
-
- if (!(readl(®s->HostCtrl) & NIC_HALTED)){
- printk("%s: Trying to load firmware to a running NIC.\n",
- dev->name);
- return -EBUSY;
- }
-
- localctrl = readl(®s->LocalCtrl);
- writel(0, ®s->LocalCtrl);
-
- writel(0, ®s->EvtPrd);
- writel(0, ®s->RxPrd);
- writel(0, ®s->TxPrd);
-
- /*
- * First wipe the entire SRAM, otherwise we might run into all
- * kinds of trouble ... sigh, this took almost all afternoon
- * to track down ;-(
- */
- io = readl(®s->ExtIo);
- writel(0, ®s->ExtIo);
- sram_size = rr_read_eeprom_word(rrpriv, 8);
-
- for (i = 200; i < sram_size / 4; i++){
- writel(i * 4, ®s->WinBase);
- mb();
- writel(0, ®s->WinData);
- mb();
- }
- writel(io, ®s->ExtIo);
- mb();
-
- eptr = rr_read_eeprom_word(rrpriv,
- offsetof(struct eeprom, rncd_info.AddrRunCodeSegs));
- eptr = ((eptr & 0x1fffff) >> 3);
-
- p2len = rr_read_eeprom_word(rrpriv, 0x83*4);
- p2len = (p2len << 2);
- p2size = rr_read_eeprom_word(rrpriv, 0x84*4);
- p2size = ((p2size & 0x1fffff) >> 3);
-
- if ((eptr < p2size) || (eptr > (p2size + p2len))){
- printk("%s: eptr is invalid\n", dev->name);
- goto out;
- }
-
- revision = rr_read_eeprom_word(rrpriv,
- offsetof(struct eeprom, manf.HeaderFmt));
-
- if (revision != 1){
- printk("%s: invalid firmware format (%i)\n",
- dev->name, revision);
- goto out;
- }
-
- nr_seg = rr_read_eeprom_word(rrpriv, eptr);
- eptr +=4;
-#if (DEBUG > 1)
- printk("%s: nr_seg %i\n", dev->name, nr_seg);
-#endif
-
- for (i = 0; i < nr_seg; i++){
- sptr = rr_read_eeprom_word(rrpriv, eptr);
- eptr += 4;
- len = rr_read_eeprom_word(rrpriv, eptr);
- eptr += 4;
- segptr = rr_read_eeprom_word(rrpriv, eptr);
- segptr = ((segptr & 0x1fffff) >> 3);
- eptr += 4;
-#if (DEBUG > 1)
- printk("%s: segment %i, sram address %06x, length %04x, segptr %06x\n",
- dev->name, i, sptr, len, segptr);
-#endif
- for (j = 0; j < len; j++){
- tmp = rr_read_eeprom_word(rrpriv, segptr);
- writel(sptr, ®s->WinBase);
- mb();
- writel(tmp, ®s->WinData);
- mb();
- segptr += 4;
- sptr += 4;
- }
- }
-
-out:
- writel(localctrl, ®s->LocalCtrl);
- mb();
- return 0;
-}
-
-
-static int rr_siocdevprivate(struct net_device *dev, struct ifreq *rq,
- void __user *data, int cmd)
-{
- struct rr_private *rrpriv;
- unsigned char *image, *oldimage;
- unsigned long flags;
- unsigned int i;
- int error = -EOPNOTSUPP;
-
- rrpriv = netdev_priv(dev);
-
- switch(cmd){
- case SIOCRRGFW:
- if (!capable(CAP_SYS_RAWIO)){
- return -EPERM;
- }
-
- image = kmalloc_array(EEPROM_WORDS, sizeof(u32), GFP_KERNEL);
- if (!image)
- return -ENOMEM;
-
- if (rrpriv->fw_running){
- printk("%s: Firmware already running\n", dev->name);
- error = -EPERM;
- goto gf_out;
- }
-
- spin_lock_irqsave(&rrpriv->lock, flags);
- i = rr_read_eeprom(rrpriv, 0, image, EEPROM_BYTES);
- spin_unlock_irqrestore(&rrpriv->lock, flags);
- if (i != EEPROM_BYTES){
- printk(KERN_ERR "%s: Error reading EEPROM\n",
- dev->name);
- error = -EFAULT;
- goto gf_out;
- }
- error = copy_to_user(data, image, EEPROM_BYTES);
- if (error)
- error = -EFAULT;
- gf_out:
- kfree(image);
- return error;
-
- case SIOCRRPFW:
- if (!capable(CAP_SYS_RAWIO)){
- return -EPERM;
- }
-
- image = memdup_user(data, EEPROM_BYTES);
- if (IS_ERR(image))
- return PTR_ERR(image);
-
- oldimage = kmalloc(EEPROM_BYTES, GFP_KERNEL);
- if (!oldimage) {
- kfree(image);
- return -ENOMEM;
- }
-
- if (rrpriv->fw_running){
- printk("%s: Firmware already running\n", dev->name);
- error = -EPERM;
- goto wf_out;
- }
-
- printk("%s: Updating EEPROM firmware\n", dev->name);
-
- spin_lock_irqsave(&rrpriv->lock, flags);
- error = write_eeprom(rrpriv, 0, image, EEPROM_BYTES);
- if (error)
- printk(KERN_ERR "%s: Error writing EEPROM\n",
- dev->name);
-
- i = rr_read_eeprom(rrpriv, 0, oldimage, EEPROM_BYTES);
- spin_unlock_irqrestore(&rrpriv->lock, flags);
-
- if (i != EEPROM_BYTES)
- printk(KERN_ERR "%s: Error reading back EEPROM "
- "image\n", dev->name);
-
- error = memcmp(image, oldimage, EEPROM_BYTES);
- if (error){
- printk(KERN_ERR "%s: Error verifying EEPROM image\n",
- dev->name);
- error = -EFAULT;
- }
- wf_out:
- kfree(oldimage);
- kfree(image);
- return error;
-
- case SIOCRRID:
- return put_user(0x52523032, (int __user *)data);
- default:
- return error;
- }
-}
-
-static const struct pci_device_id rr_pci_tbl[] = {
- { PCI_VENDOR_ID_ESSENTIAL, PCI_DEVICE_ID_ESSENTIAL_ROADRUNNER,
- PCI_ANY_ID, PCI_ANY_ID, },
- { 0,}
-};
-MODULE_DEVICE_TABLE(pci, rr_pci_tbl);
-
-static struct pci_driver rr_driver = {
- .name = "rrunner",
- .id_table = rr_pci_tbl,
- .probe = rr_init_one,
- .remove = rr_remove_one,
-};
-
-module_pci_driver(rr_driver);
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _RRUNNER_H_
-#define _RRUNNER_H_
-
-#include <linux/interrupt.h>
-
-#if ((BITS_PER_LONG != 32) && (BITS_PER_LONG != 64))
-#error "BITS_PER_LONG not defined or not valid"
-#endif
-
-
-struct rr_regs {
-
- u32 pad0[16];
-
- u32 HostCtrl;
- u32 LocalCtrl;
- u32 Pc;
- u32 BrkPt;
-
-/* Timer increments every 0.97 micro-seconds (unsigned int) */
- u32 Timer_Hi;
- u32 Timer;
- u32 TimerRef;
- u32 PciState;
-
- u32 Event;
- u32 MbEvent;
-
- u32 WinBase;
- u32 WinData;
- u32 RX_state;
- u32 TX_state;
-
- u32 Overhead;
- u32 ExtIo;
-
- u32 DmaWriteHostHi;
- u32 DmaWriteHostLo;
-
- u32 pad1[2];
-
- u32 DmaReadHostHi;
- u32 DmaReadHostLo;
-
- u32 pad2;
-
- u32 DmaReadLen;
- u32 DmaWriteState;
-
- u32 DmaWriteLcl;
- u32 DmaWriteIPchecksum;
- u32 DmaWriteLen;
- u32 DmaReadState;
- u32 DmaReadLcl;
- u32 DmaReadIPchecksum;
- u32 pad3;
-
- u32 RxBase;
- u32 RxPrd;
- u32 RxCon;
-
- u32 pad4;
-
- u32 TxBase;
- u32 TxPrd;
- u32 TxCon;
-
- u32 pad5;
-
- u32 RxIndPro;
- u32 RxIndCon;
- u32 RxIndRef;
-
- u32 pad6;
-
- u32 TxIndPro;
- u32 TxIndCon;
- u32 TxIndRef;
-
- u32 pad7[17];
-
- u32 DrCmndPro;
- u32 DrCmndCon;
- u32 DrCmndRef;
-
- u32 pad8;
-
- u32 DwCmndPro;
- u32 DwCmndCon;
- u32 DwCmndRef;
-
- u32 AssistState;
-
- u32 DrDataPro;
- u32 DrDataCon;
- u32 DrDataRef;
-
- u32 pad9;
-
- u32 DwDataPro;
- u32 DwDataCon;
- u32 DwDataRef;
-
- u32 pad10[33];
-
- u32 EvtCon;
-
- u32 pad11[5];
-
- u32 TxPi;
- u32 IpRxPi;
-
- u32 pad11a[8];
-
- u32 CmdRing[16];
-
-/* The ULA is in two registers the high order two bytes of the first
- * word contain the RunCode features.
- * ula0 res res byte0 byte1
- * ula1 byte2 byte3 byte4 byte5
- */
- u32 Ula0;
- u32 Ula1;
-
- u32 RxRingHi;
- u32 RxRingLo;
-
- u32 InfoPtrHi;
- u32 InfoPtrLo;
-
- u32 Mode;
-
- u32 ConRetry;
- u32 ConRetryTmr;
-
- u32 ConTmout;
- u32 CtatTmr;
-
- u32 MaxRxRng;
-
- u32 IntrTmr;
- u32 TxDataMvTimeout;
- u32 RxDataMvTimeout;
-
- u32 EvtPrd;
- u32 TraceIdx;
-
- u32 Fail1;
- u32 Fail2;
-
- u32 DrvPrm;
-
- u32 FilterLA;
-
- u32 FwRev;
- u32 FwRes1;
- u32 FwRes2;
- u32 FwRes3;
-
- u32 WriteDmaThresh;
- u32 ReadDmaThresh;
-
- u32 pad12[325];
- u32 Window[512];
-};
-
-/*
- * Host control register bits.
- */
-
-#define RR_INT 0x01
-#define RR_CLEAR_INT 0x02
-#define NO_SWAP 0x04000004
-#define NO_SWAP1 0x00000004
-#define PCI_RESET_NIC 0x08
-#define HALT_NIC 0x10
-#define SSTEP_NIC 0x20
-#define MEM_READ_MULTI 0x40
-#define NIC_HALTED 0x100
-#define HALT_INST 0x200
-#define PARITY_ERR 0x400
-#define INVALID_INST_B 0x800
-#define RR_REV_2 0x20000000
-#define RR_REV_MASK 0xf0000000
-
-/*
- * Local control register bits.
- */
-
-#define INTA_STATE 0x01
-#define CLEAR_INTA 0x02
-#define FAST_EEPROM_ACCESS 0x08
-#define ENABLE_EXTRA_SRAM 0x100
-#define ENABLE_EXTRA_DESC 0x200
-#define ENABLE_PARITY 0x400
-#define FORCE_DMA_PARITY_ERROR 0x800
-#define ENABLE_EEPROM_WRITE 0x1000
-#define ENABLE_DATA_CACHE 0x2000
-#define SRAM_LO_PARITY_ERR 0x4000
-#define SRAM_HI_PARITY_ERR 0x8000
-
-/*
- * PCI state bits.
- */
-
-#define FORCE_PCI_RESET 0x01
-#define PROVIDE_LENGTH 0x02
-#define MASK_DMA_READ_MAX 0x1C
-#define RBURST_DISABLE 0x00
-#define RBURST_4 0x04
-#define RBURST_16 0x08
-#define RBURST_32 0x0C
-#define RBURST_64 0x10
-#define RBURST_128 0x14
-#define RBURST_256 0x18
-#define RBURST_1024 0x1C
-#define MASK_DMA_WRITE_MAX 0xE0
-#define WBURST_DISABLE 0x00
-#define WBURST_4 0x20
-#define WBURST_16 0x40
-#define WBURST_32 0x60
-#define WBURST_64 0x80
-#define WBURST_128 0xa0
-#define WBURST_256 0xc0
-#define WBURST_1024 0xe0
-#define MASK_MIN_DMA 0xFF00
-#define FIFO_RETRY_ENABLE 0x10000
-
-/*
- * Event register
- */
-
-#define DMA_WRITE_DONE 0x10000
-#define DMA_READ_DONE 0x20000
-#define DMA_WRITE_ERR 0x40000
-#define DMA_READ_ERR 0x80000
-
-/*
- * Receive state
- *
- * RoadRunner HIPPI Receive State Register controls and monitors the
- * HIPPI receive interface in the NIC. Look at err bits when a HIPPI
- * receive Error Event occurs.
- */
-
-#define ENABLE_NEW_CON 0x01
-#define RESET_RECV 0x02
-#define RECV_ALL 0x00
-#define RECV_1K 0x20
-#define RECV_2K 0x40
-#define RECV_4K 0x60
-#define RECV_8K 0x80
-#define RECV_16K 0xa0
-#define RECV_32K 0xc0
-#define RECV_64K 0xe0
-
-/*
- * Transmit status.
- */
-
-#define ENA_XMIT 0x01
-#define PERM_CON 0x02
-
-/*
- * DMA write state
- */
-
-#define RESET_DMA 0x01
-#define NO_SWAP_DMA 0x02
-#define DMA_ACTIVE 0x04
-#define THRESH_MASK 0x1F
-#define DMA_ERROR_MASK 0xff000000
-
-/*
- * Gooddies stored in the ULA registers.
- */
-
-#define TRACE_ON_WHAT_BIT 0x00020000 /* Traces on */
-#define ONEM_BUF_WHAT_BIT 0x00040000 /* 1Meg vs 256K */
-#define CHAR_API_WHAT_BIT 0x00080000 /* Char API vs network only */
-#define CMD_EVT_WHAT_BIT 0x00200000 /* Command event */
-#define LONG_TX_WHAT_BIT 0x00400000
-#define LONG_RX_WHAT_BIT 0x00800000
-#define WHAT_BIT_MASK 0xFFFD0000 /* Feature bit mask */
-
-/*
- * Mode status
- */
-
-#define EVENT_OVFL 0x80000000
-#define FATAL_ERR 0x40000000
-#define LOOP_BACK 0x01
-#define MODE_PH 0x02
-#define MODE_FP 0x00
-#define PTR64BIT 0x04
-#define PTR32BIT 0x00
-#define PTR_WD_SWAP 0x08
-#define PTR_WD_NOSWAP 0x00
-#define POST_WARN_EVENT 0x10
-#define ERR_TERM 0x20
-#define DIRECT_CONN 0x40
-#define NO_NIC_WATCHDOG 0x80
-#define SWAP_DATA 0x100
-#define SWAP_CONTROL 0x200
-#define NIC_HALT_ON_ERR 0x400
-#define NIC_NO_RESTART 0x800
-#define HALF_DUP_TX 0x1000
-#define HALF_DUP_RX 0x2000
-
-
-/*
- * Error codes
- */
-
-/* Host Error Codes - values of fail1 */
-#define ERR_UNKNOWN_MBOX 0x1001
-#define ERR_UNKNOWN_CMD 0x1002
-#define ERR_MAX_RING 0x1003
-#define ERR_RING_CLOSED 0x1004
-#define ERR_RING_OPEN 0x1005
-/* Firmware internal errors */
-#define ERR_EVENT_RING_FULL 0x01
-#define ERR_DW_PEND_CMND_FULL 0x02
-#define ERR_DR_PEND_CMND_FULL 0x03
-#define ERR_DW_PEND_DATA_FULL 0x04
-#define ERR_DR_PEND_DATA_FULL 0x05
-#define ERR_ILLEGAL_JUMP 0x06
-#define ERR_UNIMPLEMENTED 0x07
-#define ERR_TX_INFO_FULL 0x08
-#define ERR_RX_INFO_FULL 0x09
-#define ERR_ILLEGAL_MODE 0x0A
-#define ERR_MAIN_TIMEOUT 0x0B
-#define ERR_EVENT_BITS 0x0C
-#define ERR_UNPEND_FULL 0x0D
-#define ERR_TIMER_QUEUE_FULL 0x0E
-#define ERR_TIMER_QUEUE_EMPTY 0x0F
-#define ERR_TIMER_NO_FREE 0x10
-#define ERR_INTR_START 0x11
-#define ERR_BAD_STARTUP 0x12
-#define ERR_NO_PKT_END 0x13
-#define ERR_HALTED_ON_ERR 0x14
-/* Hardware NIC Errors */
-#define ERR_WRITE_DMA 0x0101
-#define ERR_READ_DMA 0x0102
-#define ERR_EXT_SERIAL 0x0103
-#define ERR_TX_INT_PARITY 0x0104
-
-
-/*
- * Event definitions
- */
-
-#define EVT_RING_ENTRIES 64
-#define EVT_RING_SIZE (EVT_RING_ENTRIES * sizeof(struct event))
-
-struct event {
-#ifdef __LITTLE_ENDIAN
- u16 index;
- u8 ring;
- u8 code;
-#else
- u8 code;
- u8 ring;
- u16 index;
-#endif
- u32 timestamp;
-};
-
-/*
- * General Events
- */
-
-#define E_NIC_UP 0x01
-#define E_WATCHDOG 0x02
-
-#define E_STAT_UPD 0x04
-#define E_INVAL_CMD 0x05
-#define E_SET_CMD_CONS 0x06
-#define E_LINK_ON 0x07
-#define E_LINK_OFF 0x08
-#define E_INTERN_ERR 0x09
-#define E_HOST_ERR 0x0A
-#define E_STATS_UPDATE 0x0B
-#define E_REJECTING 0x0C
-
-/*
- * Send Events
- */
-#define E_CON_REJ 0x13
-#define E_CON_TMOUT 0x14
-#define E_CON_NC_TMOUT 0x15 /* I , Connection No Campon Timeout */
-#define E_DISC_ERR 0x16
-#define E_INT_PRTY 0x17
-#define E_TX_IDLE 0x18
-#define E_TX_LINK_DROP 0x19
-#define E_TX_INV_RNG 0x1A
-#define E_TX_INV_BUF 0x1B
-#define E_TX_INV_DSC 0x1C
-
-/*
- * Destination Events
- */
-/*
- * General Receive events
- */
-#define E_VAL_RNG 0x20
-#define E_RX_RNG_ENER 0x21
-#define E_INV_RNG 0x22
-#define E_RX_RNG_SPC 0x23
-#define E_RX_RNG_OUT 0x24
-#define E_PKT_DISCARD 0x25
-#define E_INFO_EVT 0x27
-
-/*
- * Data corrupted events
- */
-#define E_RX_PAR_ERR 0x2B
-#define E_RX_LLRC_ERR 0x2C
-#define E_IP_CKSM_ERR 0x2D
-#define E_DTA_CKSM_ERR 0x2E
-#define E_SHT_BST 0x2F
-
-/*
- * Data lost events
- */
-#define E_LST_LNK_ERR 0x30
-#define E_FLG_SYN_ERR 0x31
-#define E_FRM_ERR 0x32
-#define E_RX_IDLE 0x33
-#define E_PKT_LN_ERR 0x34
-#define E_STATE_ERR 0x35
-#define E_UNEXP_DATA 0x3C
-
-/*
- * Fatal events
- */
-#define E_RX_INV_BUF 0x36
-#define E_RX_INV_DSC 0x37
-#define E_RNG_BLK 0x38
-
-/*
- * Warning events
- */
-#define E_RX_TO 0x39
-#define E_BFR_SPC 0x3A
-#define E_INV_ULP 0x3B
-
-#define E_NOT_IMPLEMENTED 0x40
-
-
-/*
- * Commands
- */
-
-#define CMD_RING_ENTRIES 16
-
-struct cmd {
-#ifdef __LITTLE_ENDIAN
- u16 index;
- u8 ring;
- u8 code;
-#else
- u8 code;
- u8 ring;
- u16 index;
-#endif
-};
-
-#define C_START_FW 0x01
-#define C_UPD_STAT 0x02
-#define C_WATCHDOG 0x05
-#define C_DEL_RNG 0x09
-#define C_NEW_RNG 0x0A
-#define C_CONN 0x0D
-
-
-/*
- * Mode bits
- */
-
-#define PACKET_BAD 0x01 /* Packet had link-layer error */
-#define INTERRUPT 0x02
-#define TX_IP_CKSUM 0x04
-#define PACKET_END 0x08
-#define PACKET_START 0x10
-#define SAME_IFIELD 0x80
-
-
-typedef struct {
-#if (BITS_PER_LONG == 64)
- u64 addrlo;
-#else
- u32 addrhi;
- u32 addrlo;
-#endif
-} rraddr;
-
-
-static inline void set_rraddr(rraddr *ra, dma_addr_t addr)
-{
- unsigned long baddr = addr;
-#if (BITS_PER_LONG == 64)
- ra->addrlo = baddr;
-#else
- /* Don't bother setting zero every time */
- ra->addrlo = baddr;
-#endif
- mb();
-}
-
-
-static inline void set_rxaddr(struct rr_regs __iomem *regs, volatile dma_addr_t addr)
-{
- unsigned long baddr = addr;
-#if (BITS_PER_LONG == 64) && defined(__LITTLE_ENDIAN)
- writel(baddr & 0xffffffff, ®s->RxRingHi);
- writel(baddr >> 32, ®s->RxRingLo);
-#elif (BITS_PER_LONG == 64)
- writel(baddr >> 32, ®s->RxRingHi);
- writel(baddr & 0xffffffff, ®s->RxRingLo);
-#else
- writel(0, ®s->RxRingHi);
- writel(baddr, ®s->RxRingLo);
-#endif
- mb();
-}
-
-
-static inline void set_infoaddr(struct rr_regs __iomem *regs, volatile dma_addr_t addr)
-{
- unsigned long baddr = addr;
-#if (BITS_PER_LONG == 64) && defined(__LITTLE_ENDIAN)
- writel(baddr & 0xffffffff, ®s->InfoPtrHi);
- writel(baddr >> 32, ®s->InfoPtrLo);
-#elif (BITS_PER_LONG == 64)
- writel(baddr >> 32, ®s->InfoPtrHi);
- writel(baddr & 0xffffffff, ®s->InfoPtrLo);
-#else
- writel(0, ®s->InfoPtrHi);
- writel(baddr, ®s->InfoPtrLo);
-#endif
- mb();
-}
-
-
-/*
- * TX ring
- */
-
-#ifdef CONFIG_ROADRUNNER_LARGE_RINGS
-#define TX_RING_ENTRIES 32
-#else
-#define TX_RING_ENTRIES 16
-#endif
-#define TX_TOTAL_SIZE (TX_RING_ENTRIES * sizeof(struct tx_desc))
-
-struct tx_desc{
- rraddr addr;
- u32 res;
-#ifdef __LITTLE_ENDIAN
- u16 size;
- u8 pad;
- u8 mode;
-#else
- u8 mode;
- u8 pad;
- u16 size;
-#endif
-};
-
-
-#ifdef CONFIG_ROADRUNNER_LARGE_RINGS
-#define RX_RING_ENTRIES 32
-#else
-#define RX_RING_ENTRIES 16
-#endif
-#define RX_TOTAL_SIZE (RX_RING_ENTRIES * sizeof(struct rx_desc))
-
-struct rx_desc{
- rraddr addr;
- u32 res;
-#ifdef __LITTLE_ENDIAN
- u16 size;
- u8 pad;
- u8 mode;
-#else
- u8 mode;
- u8 pad;
- u16 size;
-#endif
-};
-
-
-/*
- * ioctl's
- */
-
-#define SIOCRRPFW SIOCDEVPRIVATE /* put firmware */
-#define SIOCRRGFW SIOCDEVPRIVATE+1 /* get firmware */
-#define SIOCRRID SIOCDEVPRIVATE+2 /* identify */
-
-
-struct seg_hdr {
- u32 seg_start;
- u32 seg_len;
- u32 seg_eestart;
-};
-
-
-#define EEPROM_BASE 0x80000000
-#define EEPROM_WORDS 8192
-#define EEPROM_BYTES (EEPROM_WORDS * sizeof(u32))
-
-struct eeprom_boot {
- u32 key1;
- u32 key2;
- u32 sram_size;
- struct seg_hdr loader;
- u32 init_chksum;
- u32 reserved1;
-};
-
-struct eeprom_manf {
- u32 HeaderFmt;
- u32 Firmware;
- u32 BoardRevision;
- u32 RoadrunnerRev;
- char OpticsPart[8];
- u32 OpticsRev;
- u32 pad1;
- char SramPart[8];
- u32 SramRev;
- u32 pad2;
- char EepromPart[8];
- u32 EepromRev;
- u32 EepromSize;
- char PalPart[8];
- u32 PalRev;
- u32 pad3;
- char PalCodeFile[12];
- u32 PalCodeRev;
- char BoardULA[8];
- char SerialNo[8];
- char MfgDate[8];
- char MfgTime[8];
- char ModifyDate[8];
- u32 ModCount;
- u32 pad4[13];
-};
-
-
-struct eeprom_phase_info {
- char phase1File[12];
- u32 phase1Rev;
- char phase1Date[8];
- char phase2File[12];
- u32 phase2Rev;
- char phase2Date[8];
- u32 reserved7[4];
-};
-
-struct eeprom_rncd_info {
- u32 FwStart;
- u32 FwRev;
- char FwDate[8];
- u32 AddrRunCodeSegs;
- u32 FileNames;
- char File[13][8];
-};
-
-
-/* Phase 1 region (starts are word offset 0x80) */
-struct phase1_hdr{
- u32 jump;
- u32 noop;
- struct seg_hdr phase2Seg;
-};
-
-struct eeprom {
- struct eeprom_boot boot;
- u32 pad1[8];
- struct eeprom_manf manf;
- struct eeprom_phase_info phase_info;
- struct eeprom_rncd_info rncd_info;
- u32 pad2[15];
- u32 hdr_checksum;
- struct phase1_hdr phase1;
-};
-
-
-struct rr_stats {
- u32 NicTimeStamp;
- u32 RngCreated;
- u32 RngDeleted;
- u32 IntrGen;
- u32 NEvtOvfl;
- u32 InvCmd;
- u32 DmaReadErrs;
- u32 DmaWriteErrs;
- u32 StatUpdtT;
- u32 StatUpdtC;
- u32 WatchDog;
- u32 Trace;
-
- /* Serial HIPPI */
- u32 LnkRdyEst;
- u32 GLinkErr;
- u32 AltFlgErr;
- u32 OvhdBit8Sync;
- u32 RmtSerPrtyErr;
- u32 RmtParPrtyErr;
- u32 RmtLoopBk;
- u32 pad1;
-
- /* HIPPI tx */
- u32 ConEst;
- u32 ConRejS;
- u32 ConRetry;
- u32 ConTmOut;
- u32 SndConDiscon;
- u32 SndParErr;
- u32 PktSnt;
- u32 pad2[2];
- u32 ShFBstSnt;
- u64 BytSent;
- u32 TxTimeout;
- u32 pad3[3];
-
- /* HIPPI rx */
- u32 ConAcc;
- u32 ConRejdiPrty;
- u32 ConRejd64b;
- u32 ConRejdBuf;
- u32 RxConDiscon;
- u32 RxConNoData;
- u32 PktRx;
- u32 pad4[2];
- u32 ShFBstRx;
- u64 BytRx;
- u32 RxParErr;
- u32 RxLLRCerr;
- u32 RxBstSZerr;
- u32 RxStateErr;
- u32 RxRdyErr;
- u32 RxInvULP;
- u32 RxSpcBuf;
- u32 RxSpcDesc;
- u32 RxRngSpc;
- u32 RxRngFull;
- u32 RxPktLenErr;
- u32 RxCksmErr;
- u32 RxPktDrp;
- u32 RngLowSpc;
- u32 RngDataClose;
- u32 RxTimeout;
- u32 RxIdle;
-};
-
-
-/*
- * This struct is shared with the NIC firmware.
- */
-struct ring_ctrl {
- rraddr rngptr;
-#ifdef __LITTLE_ENDIAN
- u16 entries;
- u8 pad;
- u8 entry_size;
- u16 pi;
- u16 mode;
-#else
- u8 entry_size;
- u8 pad;
- u16 entries;
- u16 mode;
- u16 pi;
-#endif
-};
-
-struct rr_info {
- union {
- struct rr_stats stats;
- u32 stati[128];
- } s;
- struct ring_ctrl evt_ctrl;
- struct ring_ctrl cmd_ctrl;
- struct ring_ctrl tx_ctrl;
- u8 pad[464];
- u8 trace[3072];
-};
-
-/*
- * The linux structure for the RoadRunner.
- *
- * RX/TX descriptors are put first to make sure they are properly
- * aligned and do not cross cache-line boundaries.
- */
-
-struct rr_private
-{
- struct rx_desc *rx_ring;
- struct tx_desc *tx_ring;
- struct event *evt_ring;
- dma_addr_t tx_ring_dma;
- dma_addr_t rx_ring_dma;
- dma_addr_t evt_ring_dma;
- /* Alignment ok ? */
- struct sk_buff *rx_skbuff[RX_RING_ENTRIES];
- struct sk_buff *tx_skbuff[TX_RING_ENTRIES];
- struct rr_regs __iomem *regs; /* Register base */
- struct ring_ctrl *rx_ctrl; /* Receive ring control */
- struct rr_info *info; /* Shared info page */
- dma_addr_t rx_ctrl_dma;
- dma_addr_t info_dma;
- spinlock_t lock;
- struct timer_list timer;
- u32 cur_rx, cur_cmd, cur_evt;
- u32 dirty_rx, dirty_tx;
- u32 tx_full;
- u32 fw_rev;
- volatile short fw_running;
- struct pci_dev *pci_dev;
-};
-
-
-/*
- * Prototypes
- */
-static int rr_init(struct net_device *dev);
-static int rr_init1(struct net_device *dev);
-static irqreturn_t rr_interrupt(int irq, void *dev_id);
-
-static int rr_open(struct net_device *dev);
-static netdev_tx_t rr_start_xmit(struct sk_buff *skb,
- struct net_device *dev);
-static int rr_close(struct net_device *dev);
-static int rr_siocdevprivate(struct net_device *dev, struct ifreq *rq,
- void __user *data, int cmd);
-static unsigned int rr_read_eeprom(struct rr_private *rrpriv,
- unsigned long offset,
- unsigned char *buf,
- unsigned long length);
-static u32 rr_read_eeprom_word(struct rr_private *rrpriv, size_t offset);
-static int rr_load_firmware(struct net_device *dev);
-static inline void rr_raz_tx(struct rr_private *, struct net_device *);
-static inline void rr_raz_rx(struct rr_private *, struct net_device *);
-#endif /* _RRUNNER_H_ */
projects / thirdparty / kernel / linux.git / commitdiff
